Use the newer names for APIs after the AST merge

author: Neal Norwitz <nnorwitz@gmail.com> 2005-10-21 04:23:36 (GMT)
committer: Neal Norwitz <nnorwitz@gmail.com> 2005-10-21 04:23:36 (GMT)
commit: 58a7985465c7c6051c8487b0906c03555c2f8a7d (patch)
tree: 5f7bbbc551feea07aa6efa8440eaa707188cf04f /Python/mystrtoul.c
parent: 6d777bb122e066f7847709673556d23263fb2380 (diff)
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0 files changed, 0 insertions, 0 deletions
diff --git a/.fossil-settings/crlf-glob b/.fossil-settings/crlf-glob
index 67a33c2..6d6fb95 100644
--- a/.fossil-settings/crlf-glob
+++ b/.fossil-settings/crlf-glob
@@ -1,18 +1,19 @@
-compat/zlib/contrib/dotzlib/DotZLib/UnitTests.cs
+compat/zlib/contrib/dotzlib/readme.txt
+compat/zlib/contrib/dotzlib/*.cs
 compat/zlib/contrib/vstudio/readme.txt
 compat/zlib/contrib/vstudio/*/zlib.rc
+compat/zlib/contrib/vstudio/*/zlibvc.def
 compat/zlib/contrib/vstudio/*/*.sln
+compat/zlib/win32/zlib.def
 compat/zlib/win32/*.txt
 compat/zlib/win64/*.txt
+compat/zlib/zlib.map
 libtommath/*.dsp
 libtommath/*.sln
 libtommath/*.vcproj
 tools/tcl.wse.in
-win/buildall.vc.bat
+win/*.bat
+win/*.vc
 win/coffbase.txt
-win/makefile.vc
-win/rules.vc
-win/rules-ext.vc
-win/targets.vc
 win/tcl.dsp
 win/tcl.dsw
diff --git a/.fossil-settings/encoding-glob b/.fossil-settings/encoding-glob
index c014320..28ce243 100644
--- a/.fossil-settings/encoding-glob
+++ b/.fossil-settings/encoding-glob
@@ -1,10 +1,7 @@
-tools/tcl.hpj.in
 tools/tcl.wse.in
 win/buildall.vc.bat
 win/coffbase.txt
-win/makefile.bc
 win/makefile.vc
 win/rules.vc
 win/tcl.dsp
-win/tcl.dsw
-win/tcl.hpj.in
+win/tcl.dsw
+\ No newline at end of file
diff --git a/.fossil-settings/ignore-glob b/.fossil-settings/ignore-glob
index 306d5a5..1fa4a73 100644
--- a/.fossil-settings/ignore-glob
+++ b/.fossil-settings/ignore-glob
@@ -48,9 +48,11 @@ libtommath/*.tex
 macosx/configure
 unix/autoMkindex.tcl
 unix/dltest.marker
+unix/dltest/embtest
 unix/dltest/*.bundle
 unix/dltest/*.dll
 unix/dltest/*.dylib
+unix/dltest/*.exe
 unix/dltest/*.o
 unix/dltest/*.sl
 unix/dltest/*.so
@@ -58,10 +60,12 @@ unix/tcl.pc
 unix/tclIndex
 unix/Tcl-Info.plist
 unix/Tclsh-Info.plist
+unix/pkgs8/*
 unix/pkgs/*
 win/Debug*
 win/Release*
 win/*.manifest
+win/pkgs8/*
 win/pkgs/*
 win/coffbase.txt
 win/tcl.hpj
diff --git a/.gitattributes b/.gitattributes
index 8a49592..fa3a3bf 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -22,6 +22,9 @@
 
 # Declare files that will always have CRLF line endings on checkout.
 *.bat eol=crlf
+*.cs eol=crlf
+*.dsp eol=crlf
+*.dsw eol=crlf
 *.sln eol=crlf
 *.vc eol=crlf
 
diff --git a/.github/ISSUE_TEMPLATE.md b/.github/ISSUE_TEMPLATE.md
new file mode 100644
index 0000000..60c8cbb
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE.md
@@ -0,0 +1,3 @@
+Important Note
+==========
+Please do not file issues with Tcl on Github. They are unlikely to be noticed in a timely fashion. Tcl issues are hosted in the [tcl fossil repository on core.tcl-lang.org](https://core.tcl-lang.org/tcl/tktnew); please post them there.
diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
new file mode 100644
index 0000000..d98ff0e
--- /dev/null
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,3 @@
+Important Note
+==========
+Please do not file pull requests with Tcl on Github. They are unlikely to be noticed in a timely fashion. Tcl issues (including patches) are hosted in the [tcl fossil repository on core.tcl-lang.org](https://core.tcl-lang.org/tcl/tktnew); please post them there.
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..203f3c8
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,6 @@
+version: 2
+updates:
+- package-ecosystem: "github-actions"
+  directory: "/"
+  schedule:
+      interval: "weekly"
diff --git a/.github/workflows/linux-build.yml b/.github/workflows/linux-build.yml
index d619507..74055fb 100644
--- a/.github/workflows/linux-build.yml
+++ b/.github/workflows/linux-build.yml
@@ -1,51 +1,81 @@
 name: Linux
-on: [push]
+on:
+  push:
+    branches:
+    - "main"
+    - "core-9-0-branch"
+    tags:
+    - "core-**"
 permissions:
   contents: read
 jobs:
   gcc:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
-        cfgopt:
+        config:
           - ""
+          - "CFLAGS=-DTCL_NO_DEPRECATED=1"
           - "--disable-shared"
+          - "--disable-zipfs"
           - "--enable-symbols"
           - "--enable-symbols=mem"
-          - "CFLAGS=-DTCL_UTF_MAX=4"
+          - "--enable-symbols=all"
+          - "CFLAGS=-ftrapv"
+          # Duplicated below
+          - "CFLAGS=-m32 CPPFLAGS=-m32 LDFLAGS=-m32 --disable-64bit"
     defaults:
       run:
         shell: bash
         working-directory: unix
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
+        timeout-minutes: 5
+      - name: Install 32-bit dependencies if needed
+        # Duplicated from above
+        if: ${{ matrix.config == 'CFLAGS=-m32 CPPFLAGS=-m32 LDFLAGS=-m32 --disable-64bit' }}
+        run: |
+          sudo apt-get update
+          sudo apt-get install gcc-multilib libc6-dev-i386
       - name: Prepare
-        run: touch tclStubInit.c
+        run: |
+          touch tclStubInit.c tclOOStubInit.c tclOOScript.h
         working-directory: generic
-      - name: Configure ${{ matrix.cfgopt }}
+      - name: Configure ${{ matrix.config }}
         run: |
-          mkdir "${HOME}/install"
-          ./configure ${CFGOPT} "--prefix=$HOME/install" || (cat config.log && exit 1)
+          mkdir "${HOME}/install dir"
+          ./configure ${CFGOPT} "--prefix=$HOME/install dir" || (cat config.log && exit 1)
         env:
-          CFGOPT: ${{ matrix.cfgopt }}
+          CFGOPT: ${{ matrix.config }}
+        timeout-minutes: 5
       - name: Build
         run: |
-          make all
+          make -j4 all
+        timeout-minutes: 5
       - name: Build Test Harness
         run: |
-          make tcltest
+          make -j4 tcltest
+        timeout-minutes: 5
+      - name: Info
+        run: |
+          ulimit -a || echo 'get limit failed'
+          echo 'puts exe:\t[info nameofexecutable]\nver:\t[info patchlevel]\t[if {![catch tcl::build-info ret]} {set ret}]\nlib:\t[info library]\nplat:\t[lsort -dictionary -stride 2 [array get tcl_platform]]' | make runtest || echo 'get info failed'
       - name: Run Tests
         run: |
           make test
         env:
           ERROR_ON_FAILURES: 1
+        timeout-minutes: 30
       - name: Test-Drive Installation
         run: |
           make install
+        timeout-minutes: 5
       - name: Create Distribution Package
         run: |
           make dist
+        timeout-minutes: 5
       - name: Convert Documentation to HTML
         run: |
           make html-tcl
+        timeout-minutes: 5
diff --git a/.github/workflows/mac-build.yml b/.github/workflows/mac-build.yml
index 5b0c657..df907d9 100644
--- a/.github/workflows/mac-build.yml
+++ b/.github/workflows/mac-build.yml
@@ -1,59 +1,84 @@
 name: macOS
-on: [push]
+on:
+  push:
+    branches:
+    - "main"
+    - "core-9-0-branch"
+    tags:
+    - "core-**"
 permissions:
   contents: read
 jobs:
   xcode:
-    runs-on: macos-10.15
+    runs-on: macos-15
     defaults:
       run:
         shell: bash
         working-directory: macosx
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
+        timeout-minutes: 5
       - name: Prepare
-        run: touch tclStubInit.c
+        run: |
+          touch tclStubInit.c tclOOStubInit.c tclOOScript.h
         working-directory: generic
       - name: Build
-        run: make all
+        run: make -j4 all
+        env:
+          CFLAGS: -arch x86_64 -arch arm64
+        timeout-minutes: 15
       - name: Run Tests
-        run: make test styles=develop
+        run: make -j4 test styles=develop
         env:
           ERROR_ON_FAILURES: 1
           MAC_CI: 1
+        timeout-minutes: 15
   clang:
-    runs-on: macos-10.15
+    runs-on: macos-15
     strategy:
       matrix:
-        cfgopt:
+        config:
           - ""
           - "--disable-shared"
+          - "--disable-zipfs"
           - "--enable-symbols"
           - "--enable-symbols=mem"
+          - "--enable-symbols=all"
     defaults:
       run:
         shell: bash
         working-directory: unix
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
+        timeout-minutes: 5
       - name: Prepare
         run: |
-          touch tclStubInit.c
-          mkdir "$HOME/install"
+          touch tclStubInit.c tclOOStubInit.c tclOOScript.h
+          mkdir "$HOME/install dir"
         working-directory: generic
-      - name: Configure ${{ matrix.cfgopt }}
+      - name: Configure ${{ matrix.config }}
         # Note that macOS is always a 64 bit platform
-        run: ./configure --enable-64bit --enable-dtrace --enable-framework ${CFGOPT} "--prefix=$HOME/install" || (cat config.log && exit 1)
+        run: ./configure --enable-dtrace --enable-framework ${CFGOPT} "--prefix=$HOME/install" || (cat config.log && exit 1)
         env:
-          CFGOPT: ${{ matrix.cfgopt }}
+          CFLAGS: -arch x86_64 -arch arm64
+          CFGOPT: ${{ matrix.config }}
+        timeout-minutes: 5
       - name: Build
         run: |
-          make all tcltest
+          make -j4 all tcltest
+        env:
+          CFLAGS: -arch x86_64 -arch arm64
+        timeout-minutes: 15
+      - name: Info
+        run: |
+          ulimit -a || echo 'get limit failed'
+          echo 'puts exe:\t[info nameofexecutable]\nver:\t[info patchlevel]\t[if {![catch tcl::build-info ret]} {set ret}]\nlib:\t[info library]\nplat:\t[lsort -dictionary -stride 2 [array get tcl_platform]]' | make runtest || echo 'get info failed'
       - name: Run Tests
         run: |
           make test
         env:
           ERROR_ON_FAILURES: 1
           MAC_CI: 1
+        timeout-minutes: 15
diff --git a/.github/workflows/onefiledist.yml b/.github/workflows/onefiledist.yml
new file mode 100644
index 0000000..69d3102
--- /dev/null
+++ b/.github/workflows/onefiledist.yml
@@ -0,0 +1,243 @@
+name: Build Binaries
+on:
+  push:
+    branches:
+    - "main"
+    - "core-9-0-branch"
+    tags:
+    - "core-**"
+permissions:
+  contents: read
+jobs:
+  linux:
+    name: Linux
+    runs-on: ubuntu-24.04
+    defaults:
+      run:
+        shell: bash
+    timeout-minutes: 10
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Prepare
+        run: |
+          touch generic/tclStubInit.c generic/tclOOStubInit.c
+          mkdir 1dist
+          echo "VER_PATH=$(cd tools; pwd)/addVerToFile.tcl" >> $GITHUB_ENV
+        working-directory: .
+      - name: Configure
+        run: ./configure --disable-symbols --disable-shared --enable-zipfs
+        working-directory: unix
+      - name: Build
+        run: |
+          make tclsh
+          make shell SCRIPT="$VER_PATH $GITHUB_ENV"
+          echo "TCL_ZIP=`pwd`/`echo libtcl*.zip`" >> $GITHUB_ENV
+        working-directory: unix
+      - name: Package
+        run: |
+          cp ../unix/tclsh tclsh${TCL_PATCHLEVEL}_snapshot
+          chmod +x tclsh${TCL_PATCHLEVEL}_snapshot
+          tar -cf tclsh${TCL_PATCHLEVEL}_snapshot.tar tclsh${TCL_PATCHLEVEL}_snapshot
+        working-directory: 1dist
+      - name: Info
+        run: |
+          ulimit -a || echo 'get limit failed'
+          echo 'puts exe:\t[info nameofexecutable]\nver:\t[info patchlevel]\t[if {![catch tcl::build-info ret]} {set ret}]\nlib:\t[info library]\nplat:\t[lsort -dictionary -stride 2 [array get tcl_platform]]' | make runtest || echo 'get info failed'
+      - name: Upload
+        uses: actions/upload-artifact@v4
+        with:
+          name: Tclsh ${{ env.TCL_PATCHLEVEL }} Linux single-file build (snapshot)
+          path: 1dist/*.tar
+        id: upload
+    outputs:
+      url: ${{ steps.upload.outputs.artifact-url }}
+  macos:
+    name: macOS
+    runs-on: macos-13
+    defaults:
+      run:
+        shell: bash
+    timeout-minutes: 10
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Checkout create-dmg
+        uses: actions/checkout@v4
+        with:
+          repository: create-dmg/create-dmg
+          ref: v1.0.8
+          path: create-dmg
+      - name: Prepare
+        run: |
+          mkdir 1dist
+          touch generic/tclStubInit.c generic/tclOOStubInit.c || true
+          wget https://github.com/culler/macher/releases/download/v1.3/macher
+          sudo cp macher /usr/local/bin
+          sudo chmod a+x /usr/local/bin/macher
+          echo "VER_PATH=$(cd tools; pwd)/addVerToFile.tcl" >> $GITHUB_ENV
+          echo "CREATE_DMG=$(cd create-dmg;pwd)/create-dmg" >> $GITHUB_ENV
+          echo "CFLAGS=-arch x86_64 -arch arm64" >> $GITHUB_ENV
+      - name: Configure
+        run: ./configure --disable-symbols --disable-shared --enable-zipfs
+        working-directory: unix
+      - name: Build
+        run: |
+          make -j4 tclsh
+          make -j4 shell SCRIPT="$VER_PATH $GITHUB_ENV"
+          echo "TCL_BIN=`pwd`/tclsh" >> $GITHUB_ENV
+          echo "TCL_ZIP=`pwd`/`echo libtcl*.zip`" >> $GITHUB_ENV
+        working-directory: unix
+      - name: Package
+        run: |
+          mkdir contents
+          cp $TCL_BIN contents/tclsh${TCL_PATCHLEVEL}_snapshot
+          chmod +x contents/tclsh${TCL_PATCHLEVEL}_snapshot
+          cat > contents/README.txt <<EOF
+          This is a single-file executable developer preview of Tcl $TCL_PATCHLEVEL
+
+          It is not intended as an official release at all, so it is unsigned and unnotarized.
+          Use strictly at your own risk.
+
+          To run it, you need to copy the executable out and run:
+              xattr -d com.apple.quarantine tclsh${TCL_PATCHLEVEL}_snapshot
+          to mark the executable as runnable on your machine.
+          EOF
+          $CREATE_DMG \
+              --volname "Tcl $TCL_PATCHLEVEL (snapshot)" \
+              --window-pos 200 120 \
+              --window-size 800 400 \
+              "Tcl-$TCL_PATCHLEVEL-(snapshot).dmg" \
+              "contents/"
+        working-directory: 1dist
+      - name: Info
+        run: |
+          ulimit -a || echo 'get limit failed'
+          echo 'puts exe:\t[info nameofexecutable]\nver:\t[info patchlevel]\t[if {![catch tcl::build-info ret]} {set ret}]\nlib:\t[info library]\nplat:\t[lsort -dictionary -stride 2 [array get tcl_platform]]' | make runtest || echo 'get info failed'
+      - name: Upload
+        uses: actions/upload-artifact@v4
+        with:
+          name: Tclsh ${{ env.TCL_PATCHLEVEL }} macOS single-file build (snapshot)
+          path: 1dist/*.dmg
+        id: upload
+    outputs:
+      url: ${{ steps.upload.outputs.artifact-url }}
+  win:
+    name: Windows
+    runs-on: windows-2025
+    defaults:
+      run:
+        shell: msys2 {0}
+    timeout-minutes: 10
+    env:
+      CC: gcc
+      CFGOPT: --disable-symbols --disable-shared
+    steps:
+      - name: Install MSYS2
+        uses: msys2/setup-msys2@v2
+        with:
+          msystem: UCRT64
+          install: git mingw-w64-ucrt-x86_64-toolchain make zip
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Prepare
+        run: |
+          touch generic/tclStubInit.c generic/tclOOStubInit.c
+          echo "VER_PATH=$(cd tools; pwd)/addVerToFile.tcl" >> $GITHUB_ENV
+          mkdir 1dist
+        working-directory: .
+      - name: Configure
+        run: ./configure $CFGOPT
+        working-directory: win
+      - name: Build
+        run: |
+          make binaries libraries
+          echo "TCL_ZIP=`pwd`/`echo libtcl*.zip`" >> $GITHUB_ENV
+        working-directory: win
+      - name: Get Exact Version
+        run: |
+          ./tclsh*.exe $VER_PATH $GITHUB_ENV
+        working-directory: win
+      - name: Set Executable Name
+        run: |
+          cp ../win/tclsh*.exe tclsh${TCL_PATCHLEVEL}_snapshot.exe
+        working-directory: 1dist
+      - name: Info
+        run: |
+          ulimit -a || echo 'get limit failed'
+          echo 'puts exe:\t[info nameofexecutable]\nver:\t[info patchlevel]\t[if {![catch tcl::build-info ret]} {set ret}]\nlib:\t[info library]\nplat:\t[lsort -dictionary -stride 2 [array get tcl_platform]]' | make runtest || echo 'get info failed'
+      - name: Upload
+        uses: actions/upload-artifact@v4
+        with:
+          name: Tclsh ${{ env.TCL_PATCHLEVEL }} Windows single-file build (snapshot)
+          path: '1dist/*_snapshot.exe'
+        id: upload
+    outputs:
+      url: ${{ steps.upload.outputs.artifact-url }}
+  combine:
+    needs:
+      - linux
+      - macos
+      - win
+    name: Combine Artifacts (prototype)
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        shell: bash
+    timeout-minutes: 10
+    env:
+      # See also
+      # https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/store-information-in-variables
+      REMOTE_PATH: ${{ vars.PUBLISH_DROP_PATH }}/data-${{ github.sha }}
+    steps:
+      - name: Make directory
+        run: |
+          mkdir data
+      - name: Get Linux build
+        uses: actions/download-artifact@v4
+        with:
+          path: data
+          # Can't download by artifact ID; stupid missing feature!
+          merge-multiple: true
+      - name: Check data downloaded
+        run: |
+          ls -AlR
+        working-directory: data
+      - name: Transfer built files
+        # https://github.com/marketplace/actions/rsync-deployments-action
+        uses: burnett01/rsync-deployments@7.0.2
+        id: rsync
+        if: false  # Disabled... for now
+        with:
+          # I don't know what the right switches are here, BTW
+          switches: -avzr
+          path: data/
+          remote_path: ${{ env.REMOTE_PATH }}
+          remote_host: ${{ vars.PUBLISH_HOST }}
+          remote_user: ${{ vars.PUBLISH_USER }}
+          remote_key: ${{ secrets.DEPLOY_HOST_KEY }}
+          # MUST be a literal passwordless key
+      - name: Publish files
+        # https://github.com/marketplace/actions/ssh-remote-commands
+        uses: appleboy/ssh-action@v1.2.2
+        id: ssh
+        if: steps.rsync.outcome == 'success'
+        with:
+          host: ${{ vars.PUBLISH_HOST }}
+          username: ${{ vars.PUBLISH_USER }}
+          key: ${{ secrets.DEPLOY_HOST_KEY }}
+          script: |
+            ${{ vars.PUBLISHER_SCRIPT }} ${{ env.REMOTE_PATH }} ${{ github.ref_type }} ${{ github.ref_name }}
+      - name: Report what would be done
+        if: steps.rsync.outcome == 'skipped'
+        env:
+          SWITCHES: -av
+          LOCAL_PATH: data/
+          REMOTE_HOST: ${{ vars.PUBLISH_HOST }}
+          REMOTE_USER: ${{ vars.PUBLISH_USER }}
+          REMOTE_SCRIPT: |
+            ${{ vars.PUBLISHER_SCRIPT }} ${{ env.REMOTE_PATH }} ${{ github.ref_type }} ${{ github.ref_name }}
+        run: |
+          echo "would run: rsync $SWITCHES $LOCAL_PATH $REMOTE_USER@$REMOTE_HOST:$REMOTE_PATH"
+          echo "would run: ssh $REMOTE_USER@$REMOTE_HOST $REMOTE_SCRIPT"
+      # Consider https://github.com/marketplace/actions/slack-notify maybe?
diff --git a/.github/workflows/win-build.yml b/.github/workflows/win-build.yml
index 9a0ac98..112b656 100644
--- a/.github/workflows/win-build.yml
+++ b/.github/workflows/win-build.yml
@@ -1,81 +1,111 @@
 name: Windows
-on: [push]
+on:
+  push:
+    branches:
+    - "main"
+    - "core-9-0-branch"
+    tags:
+    - "core-**"
 permissions:
   contents: read
+env:
+  ERROR_ON_FAILURES: 1
 jobs:
   msvc:
-    runs-on: windows-2019
+    runs-on: windows-2025
     defaults:
       run:
         shell: powershell
         working-directory: win
     strategy:
       matrix:
-        cfgopt:
-          - "OPTS=threads"
-          - "OPTS=static,msvcrt,threads"
-          - "OPTS=symbols,threads"
-          - "OPTS=memdbg,threads"
+        config:
+          - ""
+          - "CHECKS=nodep"
+          - "OPTS=static"
+          - "OPTS=noembed"
+          - "OPTS=symbols"
+          - "OPTS=symbols STATS=compdbg,memdbg"
     # Using powershell means we need to explicitly stop on failure
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
+        timeout-minutes: 5
       - name: Init MSVC
         uses: ilammy/msvc-dev-cmd@v1
-      - name: Build ${{ matrix.cfgopt }}
+        timeout-minutes: 5
+      - name: Build ${{ matrix.config }}
         run: |
-          &nmake -f makefile.vc ${{ matrix.cfgopt }} all
+          &nmake -f makefile.vc ${{ matrix.config }} all
           if ($lastexitcode -ne 0) {
              throw "nmake exit code: $lastexitcode"
           }
-      - name: Build Test Harness ${{ matrix.cfgopt }}
+        timeout-minutes: 5
+      - name: Build Test Harness ${{ matrix.config }}
         run: |
-          &nmake -f makefile.vc ${{ matrix.cfgopt }} tcltest
+          &nmake -f makefile.vc ${{ matrix.config }} tcltest
           if ($lastexitcode -ne 0) {
              throw "nmake exit code: $lastexitcode"
           }
-      - name: Run Tests ${{ matrix.cfgopt }}
+        timeout-minutes: 5
+      - name: Run Tests ${{ matrix.config }}
         run: |
-          &nmake -f makefile.vc ${{ matrix.cfgopt }} test
+          &nmake -f makefile.vc ${{ matrix.config }} test
           if ($lastexitcode -ne 0) {
              throw "nmake exit code: $lastexitcode"
           }
-        env:
-          ERROR_ON_FAILURES: 1
+        timeout-minutes: 30
   gcc:
-    runs-on: windows-2019
+    runs-on: windows-2025
     defaults:
       run:
-        shell: bash
+        shell: msys2 {0}
         working-directory: win
     strategy:
       matrix:
-        cfgopt:
+        config:
           - ""
+          - "CFLAGS=-DTCL_NO_DEPRECATED=1"
           - "--disable-shared"
+          - "--disable-zipfs"
           - "--enable-symbols"
           - "--enable-symbols=mem"
+          - "--enable-symbols=all"
     # Using powershell means we need to explicitly stop on failure
     steps:
+      - name: Install MSYS2
+        uses: msys2/setup-msys2@v2
+        with:
+          msystem: MINGW64
+          install: git mingw-w64-x86_64-toolchain make
+        timeout-minutes: 10
       - name: Checkout
-        uses: actions/checkout@v3
-      - name: Install MSYS2 and Make
-        run: choco install msys2 make
+        uses: actions/checkout@v4
+        timeout-minutes: 5
       - name: Prepare
         run: |
-          touch tclStubInit.c
-          mkdir "${HOME}/install"
+          touch tclStubInit.c tclOOStubInit.c tclOOScript.h
+          mkdir "${HOME}/install dir"
         working-directory: generic
-      - name: Configure ${{ matrix.cfgopt }}
+      - name: Configure ${{ matrix.config }}
         run: |
-          ./configure ${CFGOPT} "--prefix=$HOME/install" || (cat config.log && exit 1)
+          ./configure ${CFGOPT} "--prefix=$HOME/install dir" || (cat config.log && exit 1)
         env:
-          CFGOPT: --enable-64bit --enable-threads ${{ matrix.cfgopt }}
+          CFGOPT: --enable-64bit ${{ matrix.config }}
+        timeout-minutes: 5
       - name: Build
-        run: make all
+        run: make -j4 all
+        timeout-minutes: 5
       - name: Build Test Harness
-        run: make tcltest
+        run: make -j4 tcltest
+        timeout-minutes: 5
+      - name: Info
+        run: |
+          ulimit -a || echo 'get limit failed'
+          echo 'puts exe:\t[info nameofexecutable]\nver:\t[info patchlevel]\t[if {![catch tcl::build-info ret]} {set ret}]\nlib:\t[info library]\nplat:\t[lsort -dictionary -stride 2 [array get tcl_platform]]' | make runtest || echo 'get info failed'
       - name: Run Tests
         run: make test
-        env:
-          ERROR_ON_FAILURES: 1
+        timeout-minutes: 30
+
+# If you add builds with Wine, be sure to define the environment variable
+# CI_USING_WINE when running them so that broken tests know not to run.
diff --git a/.gitignore b/.gitignore
index 504f1e4..ef1bc06 100644
--- a/.gitignore
+++ b/.gitignore
@@ -53,12 +53,15 @@ libtommath/*.tex
 macosx/configure
 unix/autoMkindex.tcl
 unix/dltest.marker
+unix/dltest/embtest
 unix/tcl.pc
 unix/tclIndex
+unix/pkgs8/*
 unix/pkgs/*
 win/Debug*
 win/Release*
 win/*.manifest
+win/pkgs8/*
 win/pkgs/*
 win/coffbase.txt
 win/tcl.hpj
diff --git a/.project b/.project
index 2639b50..f274ff9 100644
--- a/.project
+++ b/.project
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <projectDescription>
-	<name>tcl8.5</name>
+	<name>tcl9</name>
 	<comment></comment>
 	<projects>
 	</projects>
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 6447b34..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,331 +0,0 @@
-language: c
-addons:
-  apt:
-    sources:
-      - ubuntu-toolchain-r-test
-    packages:
-      - binutils-mingw-w64-i686
-      - binutils-mingw-w64-x86-64
-      - gcc-mingw-w64
-      - gcc-mingw-w64-base
-      - gcc-mingw-w64-i686
-      - gcc-mingw-w64-x86-64
-      - gcc-multilib
-jobs:
-  include:
-# Testing on Linux GCC
-    - name: "Linux/GCC/Shared"
-      os: linux
-      dist: focal
-      compiler: gcc
-      env:
-        - BUILD_DIR=unix
-    - name: "Linux/GCC/Shared: UTF_MAX=4"
-      os: linux
-      dist: focal
-      compiler: gcc
-      env:
-        - BUILD_DIR=unix
-        - CFGOPT=CFLAGS=-DTCL_UTF_MAX=4
-    - name: "Linux/GCC/Shared: UTF_MAX=5"
-      os: linux
-      dist: focal
-      compiler: gcc
-      env:
-        - BUILD_DIR=unix
-        - CFGOPT=CFLAGS=-DTCL_UTF_MAX=5
-    - name: "Linux/GCC/Shared: UTF_MAX=6"
-      os: linux
-      dist: focal
-      compiler: gcc
-      env:
-        - BUILD_DIR=unix
-        - CFGOPT=CFLAGS=-DTCL_UTF_MAX=6
-    - name: "Linux/GCC/Static"
-      os: linux
-      dist: focal
-      compiler: gcc
-      env:
-        - CFGOPT="--disable-shared"
-        - BUILD_DIR=unix
-    - name: "Linux/GCC/Debug"
-      os: linux
-      dist: focal
-      compiler: gcc
-      env:
-        - BUILD_DIR=unix
-        - CFGOPT="--enable-symbols"
-    - name: "Linux/GCC/Mem-Debug"
-      os: linux
-      dist: focal
-      compiler: gcc
-      env:
-        - BUILD_DIR=unix
-        - CFGOPT="--enable-symbols=mem"
-# Newer/Older versions of GCC
-    - name: "Linux/GCC 10/Shared"
-      os: linux
-      dist: focal
-      compiler: gcc-10
-      addons:
-        apt:
-          packages:
-            - g++-10
-      env:
-        - BUILD_DIR=unix
-    - name: "Linux/GCC 5/Shared"
-      os: linux
-      dist: bionic
-      compiler: gcc-5
-      addons:
-        apt:
-          packages:
-            - g++-5
-      env:
-        - BUILD_DIR=unix
-# Testing on Linux Clang
-    - name: "Linux/Clang/Shared"
-      os: linux
-      dist: focal
-      compiler: clang
-      env:
-        - BUILD_DIR=unix
-    - name: "Linux/Clang/Static"
-      os: linux
-      dist: focal
-      compiler: clang
-      env:
-        - CFGOPT="--disable-shared"
-        - BUILD_DIR=unix
-    - name: "Linux/Clang/Debug"
-      os: linux
-      dist: focal
-      compiler: clang
-      env:
-        - BUILD_DIR=unix
-        - CFGOPT="--enable-symbols"
-    - name: "Linux/Clang/Mem-Debug"
-      os: linux
-      dist: focal
-      compiler: clang
-      env:
-        - BUILD_DIR=unix
-        - CFGOPT="--enable-symbols=mem"
-# Testing on Mac, various styles
-    - name: "macOS/Xcode 12/Shared"
-      os: osx
-      osx_image: xcode12.2
-      env:
-        - BUILD_DIR=macosx
-      install: []
-      script: &mactest
-        - make all
-        # The styles=develop avoids some weird problems on OSX
-        - make test styles=develop
-    - name: "macOS/Xcode 12/Shared/Unix-like"
-      os: osx
-      osx_image: xcode12.2
-      env:
-        - BUILD_DIR=unix
-# Newer MacOS versions
-    - name: "macOS/Xcode 12/Universal Apps/Shared"
-      os: osx
-      osx_image: xcode12u
-      env:
-        - BUILD_DIR=macosx
-      install: []
-      script: *mactest
-# Older MacOS versions
-    - name: "macOS/Xcode 11/Shared"
-      os: osx
-      osx_image: xcode11.7
-      env:
-        - BUILD_DIR=macosx
-      install: []
-      script: *mactest
-    - name: "macOS/Xcode 10/Shared"
-      os: osx
-      osx_image: xcode10.3
-      env:
-        - BUILD_DIR=macosx
-      install: []
-      script: *mactest
-    - name: "macOS/Xcode 9/Shared"
-      os: osx
-      osx_image: xcode9.4
-      env:
-        - BUILD_DIR=macosx
-      install: []
-      script: *mactest
-    - name: "macOS/Xcode 8/Shared"
-      os: osx
-      osx_image: xcode8.3
-      env:
-        - BUILD_DIR=macosx
-      install: []
-      script: *mactest
-# Test with mingw-w64 cross-compile
-# Doesn't run tests because wine is only an imperfect Windows emulation
-    - name: "Linux-cross-Windows/GCC/Shared/no test"
-      os: linux
-      dist: focal
-      compiler: x86_64-w64-mingw32-gcc
-      env:
-        - BUILD_DIR=win
-        - CFGOPT="--host=x86_64-w64-mingw32 --enable-64bit --enable-threads"
-      script: &crosstest
-        - make all tcltest
-        # Include a high visibility marker that tests are skipped outright
-        - >
-          echo "`tput setaf 3`SKIPPED TEST: CROSS COMPILING`tput sgr0`"
-# Test with mingw-w64 (32 bit) cross-compile
-# Doesn't run tests because wine is only an imperfect Windows emulation
-    - name: "Linux-cross-Windows-32/GCC/Shared/no test"
-      os: linux
-      dist: focal
-      compiler: i686-w64-mingw32-gcc
-      env:
-        - BUILD_DIR=win
-        - CFGOPT="--host=i686-w64-mingw32 --enable-threads"
-      script: *crosstest
-# Test on Windows with MSVC native
-    - name: "Windows/MSVC/Shared"
-      os: windows
-      compiler: cl
-      env: &vcenv
-        - BUILD_DIR=win
-        - VCDIR="/C/Program Files (x86)/Microsoft Visual Studio/2017/BuildTools/VC/Auxiliary/Build"
-      before_install: &vcpreinst
-        - PATH="$PATH:$VCDIR"
-        - cd ${BUILD_DIR}
-      install: []
-      script:
-        - cmd.exe //C vcvarsall.bat x64 '&&' nmake 'OPTS=threads' '-f' makefile.vc all tcltest
-        - cmd.exe //C vcvarsall.bat x64 '&&' nmake 'OPTS=threads' '-f' makefile.vc test
-    - name: "Windows/MSVC/Static"
-      os: windows
-      compiler: cl
-      env: *vcenv
-      before_install: *vcpreinst
-      install: []
-      script:
-        - cmd.exe //C vcvarsall.bat x64 '&&' nmake 'OPTS=static,msvcrt,threads' '-f' makefile.vc all tcltest
-        - cmd.exe //C vcvarsall.bat x64 '&&' nmake 'OPTS=static,msvcrt,threads' '-f' makefile.vc test
-    - name: "Windows/MSVC/Debug"
-      os: windows
-      compiler: cl
-      env: *vcenv
-      before_install: *vcpreinst
-      install: []
-      script:
-        - cmd.exe //C vcvarsall.bat x64 '&&' nmake 'OPTS=symbols,threads' '-f' makefile.vc all tcltest
-        - cmd.exe //C vcvarsall.bat x64 '&&' nmake 'OPTS=symbols,threads' '-f' makefile.vc test
-    - name: "Windows/MSVC/Mem-Debug"
-      os: windows
-      compiler: cl
-      env: *vcenv
-      before_install: *vcpreinst
-      install: []
-      script:
-        - cmd.exe //C vcvarsall.bat x64 '&&' nmake 'STATS=memdbg OPTS=threads' '-f' makefile.vc all tcltest
-        - cmd.exe //C vcvarsall.bat x64 '&&' nmake 'STATS=memdbg OPTS=threads' '-f' makefile.vc test
-# Test on Windows with MSVC native (32-bit)
-    - name: "Windows/MSVC-x86/Shared"
-      os: windows
-      compiler: cl
-      env: *vcenv
-      before_install: *vcpreinst
-      install: []
-      script:
-        - cmd.exe //C vcvarsall.bat x86 '&&' nmake 'OPTS=threads' '-f' makefile.vc all tcltest
-        - cmd.exe //C vcvarsall.bat x86 '&&' nmake 'OPTS=threads' '-f' makefile.vc test
-    - name: "Windows/MSVC-x86/Static"
-      os: windows
-      compiler: cl
-      env: *vcenv
-      before_install: *vcpreinst
-      install: []
-      script:
-        - cmd.exe //C vcvarsall.bat x86 '&&' nmake 'OPTS=static,msvcrt,threads' '-f' makefile.vc all tcltest
-        - cmd.exe //C vcvarsall.bat x86 '&&' nmake 'OPTS=static,msvcrt,threads' '-f' makefile.vc test
-    - name: "Windows/MSVC-x86/Debug"
-      os: windows
-      compiler: cl
-      env: *vcenv
-      before_install: *vcpreinst
-      install: []
-      script:
-        - cmd.exe //C vcvarsall.bat x86 '&&' nmake 'OPTS=symbols,threads' '-f' makefile.vc all tcltest
-        - cmd.exe //C vcvarsall.bat x86 '&&' nmake 'OPTS=symbols,threads' '-f' makefile.vc test
-    - name: "Windows/MSVC-x86/Mem-Debug"
-      os: windows
-      compiler: cl
-      env: *vcenv
-      before_install: *vcpreinst
-      install: []
-      script:
-        - cmd.exe //C vcvarsall.bat x86 '&&' nmake 'STATS=memdbg OPTS=threads' '-f' makefile.vc all tcltest
-        - cmd.exe //C vcvarsall.bat x86 '&&' nmake 'STATS=memdbg OPTS=threads' '-f' makefile.vc test
-# Test on Windows with GCC native
-    - name: "Windows/GCC/Shared"
-      os: windows
-      compiler: gcc
-      env:
-        - BUILD_DIR=win
-        - CFGOPT="--enable-64bit --enable-threads"
-      before_install: &makepreinst
-        - choco install -y make
-        - cd ${BUILD_DIR}
-    - name: "Windows/GCC/Static"
-      os: windows
-      compiler: gcc
-      env:
-        - BUILD_DIR=win
-        - CFGOPT="--enable-64bit --enable-threads --disable-shared"
-      before_install: *makepreinst
-    - name: "Windows/GCC/Debug"
-      os: windows
-      compiler: gcc
-      env:
-        - BUILD_DIR=win
-        - CFGOPT="--enable-64bit --enable-threads --enable-symbols"
-      before_install: *makepreinst
-# Test on Windows with GCC native (32-bit)
-    - name: "Windows/GCC-x86/Shared"
-      os: windows
-      compiler: gcc
-      env:
-        - BUILD_DIR=win
-        - CFGOPT="--enable-threads"
-      before_install: *makepreinst
-    - name: "Windows/GCC-x86/Static"
-      os: windows
-      compiler: gcc
-      env:
-        - BUILD_DIR=win
-        - CFGOPT="--enable-threads --disable-shared"
-      before_install: *makepreinst
-    - name: "Windows/GCC-x86/Debug"
-      os: windows
-      compiler: gcc
-      env:
-        - BUILD_DIR=win
-        - CFGOPT="--enable-threads --enable-symbols"
-      before_install: *makepreinst
-    - name: "Windows/GCC-x86/Mem-Debug"
-      os: windows
-      compiler: gcc
-      env:
-        - BUILD_DIR=win
-        - CFGOPT="--enable-threads --enable-symbols=mem"
-      before_install: *makepreinst
-before_install:
-  - touch generic/tclStubInit.c
-  - cd ${BUILD_DIR}
-install:
-  - ./configure ${CFGOPT} --prefix=$HOME || (cat config.log && exit 1)
-before_script:
-  - export ERROR_ON_FAILURES=1
-script:
-  - make all tcltest || echo "Something wrong, maybe a hickup, let's try again"
-  - make test
diff --git a/ChangeLog b/ChangeLog
deleted file mode 100644
index 50fbeec..0000000
--- a/ChangeLog
+++ /dev/null
@@ -1,3473 +0,0 @@
-A NOTE ON THE CHANGELOG:
-Starting in early 2011, Tcl source code has been under the management of
-fossil, hosted at https://core.tcl-lang.org/tcl/ .  Fossil presents a "Timeline"
-view of changes made that is superior in every way to a hand edited log file.
-Because of this, many Tcl developers are now out of the habit of maintaining
-this log file.  You may still find useful things in it, but the Timeline is
-a better first place to look now.
-============================================================================
-
-2013-08-30  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tcl.h:	Bump to 8.5.15 for release.
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-	* README:
-
-	* unix/configure:	autoconf-2.59
-	* win/configure:
-
-2013-08-01  Harald Oehlmann  <oehhar@users.sf.net>
-
-	* tclUnixNotify.c Tcl_InitNotifier: Bug [a0bc856dcd]
-	  Start notifier thread again if we were forked, to solve Rivet bug
-	  55153.
-
-2013-07-05  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata/Africa/Casablanca:
-	* library/tzdata/America/Asuncion:
-	* library/tzdata/Antarctica/Macquarie:
-	* library/tzdata/Asia/Gaza:
-	* library/tzdata/Asia/Hebron:
-	* library/tzdata/Asia/Jerusalem:
-	http://www.iana.org/time-zones/repository/releases/tzdata2013d.tar.gz
-
-2013-07-03  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* unix/tclXtNotify.c: Bug [817249]: bring tclXtNotify.c up to date with
-	Tcl_SetNotifier() change.
-
-2013-07-02  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* unix/tcl.m4:  Bug [32afa6e256]: dirent64 check is incorrect in tcl.m4
-	* unix/configure: (thanks to Brian Griffin)
-
-2013-06-27  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclConfig.c: Bug [9b2e636361]: Tcl_CreateInterp() needs initialized
-	* generic/tclMain.c:   encodings.
-
-2013-06-18  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclEvent.c: Bug [3611974]: InitSubsystems multiple thread issue.
-
-2013-06-17  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/regc_locale.c: Bug [a876646efe]: re_expr character class
-	[:cntrl:] should contain \u0000 - \u001f
-
-2013-06-03  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c: fix for perf bug detected by Kieran
-	(https://groups.google.com/forum/?fromgroups#!topic/comp.lang.tcl/vfpI3bc-DkQ),
-	diagnosed by dgp to be a close relative of [Bug 781585], which was
-	fixed by commit	[f46fb50cb3]. This bug was introduced by myself in
-	commit [cbfe055d8c].
-
-2013-05-28 Harald Oehlmann  <oehhar@users.sf.net>
-
-	* library/msgcat/msgcat.tcl: [Bug 3036566]: Also get locale from
-	registry key HCU\Control Panel\Desktop : PreferredUILanguages to
-	honor installed language packs on Vista+.
-	Bumped msgcat version to 1.5.2
-
-2013-05-22  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclUtf.c (TclUtfCasecmp): [Bug 3613609]: Replace problematic
-	uses of strcasecmp with a proper UTF-8-aware version. Affects both
-	[lsearch -nocase] and [lsort -nocase].
-
-2013-05-19  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* unix/tcl.m4:     Fix for FreeBSD, and remove support for older
-	* unix/configure:  FreeBSD versions. Patch by Pietro Cerutti.
-
-2013-05-16  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclBasic.c: Add panic in order to detect
-	incompatible mingw32 sys/stat.h and sys/time.h headers,
-
-2013-05-06  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclStubInit.c: Add support for Cygwin64, which has a 64-bit
-	* generic/tclDecls.h: "long" type. Binary compatibility with win64
-	requires that all stub entries use 32-bit long's, therefore the
-	need for various wrapper functions/macros. For Tcl 9 a better
-	solution is needed, but that cannot be done without introducing
-	binary incompatibility.
-
-2013-04-30  Andreas Kupries  <andreask@activestate.com>
-
-	* library/platform/platform.tcl (::platform::LibcVersion):
-	* library/platform/pkgIndex.tcl: Followup to the 2013-01-30
-	  change. The RE become too restrictive again. SuSe added a
-	  timestamp after the version. Loosened up a bit. Bumped package
-	  to version 1.0.12.
-
-2013-04-25  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclDecls.h: Implement Tcl_NewBooleanObj, Tcl_DbNewBooleanObj
-	and Tcl_SetBooleanObj as macros using Tcl_NewIntObj, Tcl_DbNewLongObj
-	and Tcl_SetIntObj. Starting with Tcl 8.5, this is exactly the same,
-	it only eliminates code duplication.
-
-2013-04-19  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclDecls.h: Implement many Tcl_*Var* functions and
-	Tcl_GetIndexFromObj as (faster/stack-saving) macros around resp
-	their Tcl_*Var*2 equivalent and Tcl_GetIndexFromObjStruct.
-
-2013-04-12  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclDecls.h: Implement Tcl_Pkg* functions as
-	(faster/stack-saving) macros around Tcl_Pkg*Ex functions.
-
-2013-04-08  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/regc_color.c:	[Bug 3610026] Stop crash when the number of
-	* generic/regerrs.h:	"colors" in a regular expression overflows
-	* generic/regex.h:	a short int.  Thanks to Heikki Linnakangas
-	* generic/regguts.h:	for the report and the patch.
-	* tests/regexp.test:
-
-2013-04-04  Reinhard Max  <max@suse.de>
-
-        * library/http/http.tcl (http::geturl): Allow URLs that don't have
-        a path, but a query query, e.g. http://example.com?foo=bar .
-        * Bump the http package to 2.7.12.
-
-2013-04-03  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* unix/tclUnixInit.c: [Bug 3205320]: stack space detection
-	defeated by inlining. Now fixed in the cross-compile
-	case as well.
-
-2013-04-03  Don Porter  <dgp@users.sourceforge.net>
-
-	*** 8.5.14 TAGGED FOR RELEASE ***
-
-	* generic/tcl.h:	Bump to 8.5.14 for release.
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-	* README:
-
-	* unix/configure:	autoconf-2.59
-	* win/configure:
-
-2013-03-22  Venkat Iyer <venkat@comit.com>
-	* library/tzdata/Africa/Cairo: Update to tzdata2013b.
-	* library/tzdata/Africa/Casablanca:
-	* library/tzdata/Africa/Gaborone:
-	* library/tzdata/Africa/Tripoli:
-	* library/tzdata/America/Asuncion:
-	* library/tzdata/America/Barbados:
-	* library/tzdata/America/Bogota:
-	* library/tzdata/America/Costa_Rica:
-	* library/tzdata/America/Curacao:
-	* library/tzdata/America/Nassau:
-	* library/tzdata/America/Port-au-Prince:
-	* library/tzdata/America/Santiago:
-	* library/tzdata/Antarctica/Palmer:
-	* library/tzdata/Asia/Aden:
-	* library/tzdata/Asia/Hong_Kong:
-	* library/tzdata/Asia/Muscat:
-	* library/tzdata/Asia/Rangoon:
-	* library/tzdata/Asia/Shanghai:
-	* library/tzdata/Atlantic/Bermuda:
-	* library/tzdata/Europe/Vienna:
-	* library/tzdata/Pacific/Easter:
-	* library/tzdata/Pacific/Fiji:
-	* library/tzdata/Asia/Khandyga: (new)
-	* library/tzdata/Asia/Ust-Nera: (new)
-	* library/tzdata/Europe/Busingen: (new)
-
-2013-03-21  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/auto.tcl: [Bug 2102614] Add ensemble indexing support
-	* tests/autoMkindex.test: to [auto_mkindex].  Thanks Brian Griffin.
-
-2013-03-19  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclFCmd.c: [Bug 3597000] Consistent [file copy] result.
-	* tests/fileSystem.test:
-
-2013-03-19  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tclWinFile.c: [Bug 2893771]: file stat fails on locked files
-	on win32.
-
-2013-03-18  Donal K. Fellows  <dkf@users.sf.net>
-
-	* tests/cmdAH.test (cmdAH-19.12): [Bug 3608360]: Added test to ensure
-	that we never ever allow [file exists] to do globbing.
-
-2013-03-12  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* unix/tcl.m4: Patch by Andrew Shadura, providing better support for
-	three architectures they have in Debian.
-
-2013-03-06  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/regc_nfa.c:	[Bugs 3604074,3606683] Rewrite of the
-	* generic/regcomp.c:	fixempties() routine (and supporting
-	routines) to completely eliminate the infinite loop hazard.
-	Thanks to Tom Lane for the much improved solution.
-
-2013-02-27  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/regcomp.c:	[Bug 3606139]: missing error check allows
-	* tests/regexp.test:    regexp to crash Tcl. Thanks to Tom Lane for
-	providing the test-case and the patch.
-
-2013-02-26  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclObj.c: Don't panic if Tcl_ConvertToType is called for a
-	type that doesn't have a setFromAnyProc, create a proper error message.
-
-2013-02-25  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/assocd.test:	[Bugs 3605719,3605720]: Test independence.
-	* tests/basic.test:	Thanks Rolf Ade for patches.
-
-2013-02-22  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCompile.c:	Shift more burden of smart cleanup onto the
-	TclFreeCompileEnv() routine.  Stop crashes when the hookProc raises
-	an error.
-
-2013-02-20  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclNamesp.c:	[Bug 3605447]: Make sure the -clear option
-	* tests/namespace.test:	to [namespace export] always clears, whether
-	or not new export patterns are specified.
-
-2013-02-19  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclTrace.c:  [Bug 2438181]: Incorrect error reporting in
-	* tests/trace.test:    traces. Test-case and fix provided by Poor
-	Yorick.
-
-2013-02-15  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/regc_nfa.c:	[Bug 3604074]: Fix regexp optimization to
-	* tests/regexp.test:	stop hanging on the expression
-	((((((((a)*)*)*)*)*)*)*)* .  Thanks to Bjørn Grathwohl for discovery.
-
-2013-02-14  Harald Oehlmann  <oehhar@users.sf.net>
-
-	* library/msgcat/msgcat.tcl: [Bug 3604576]: Catch missing registry
-	entry "HCU\Control Panel\International".
-	Bumped msgcat version to 1.5.1
-
-2013-02-05  Don Porter  <dgp@users.sourceforge.net>
-
-	* win/tclWinFile.c:	[Bug 3603434]: Make sure TclpObjNormalizePath()
-	properly declares "a:/" to be normalized, even when no "A:" drive is
-	present on the system.
-
-2013-02-05  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclLoadNone.c (TclpLoadMemory): [Bug 3433012]: Added dummy
-	version of this function to use in the event that a platform thinks it
-	can load from memory but cannot actually do so due to it being
-	disabled at configuration time.
-
-2013-01-30  Andreas Kupries  <andreask@activestate.com>
-
-	* library/platform/platform.tcl (::platform::LibcVersion): See
-	* library/platform/pkgIndex.tcl: [Bug 3599098]: Fixed the RE
-	* unix/Makefile.in: extracting the version to avoid issues with
-	* win/Makefile.in: recent changes to the glibc banner. Now targeting a
-	less variable part of the string. Bumped package to version 1.0.11.
-
-2013-01-26  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* unix/tclUnixCompat.c: [Bug 3601804]: platformCPUID segmentation
-	fault on Darwin.
-
-2013-01-23  Donal K. Fellows  <dkf@users.sf.net>
-
-	* library/http/http.tcl (http::geturl): [Bug 2911139]: Do not do vwait
-	for connect to avoid reentrancy problems (except when operating
-	without a -command option). Internally, this means that all sockets
-	created by the http package will always be operated in asynchronous
-	mode.
-
-2013-01-18  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclPort.h: [Bug 3598300]: unix: tcl.h does not include
-	sys/stat.h
-
-2013-01-16  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* Makefile.in:   Allow win32 build with -DTCL_NO_DEPRECATED, just as
-	* generic/tcl.h: in the UNIX build. Define Tcl_EvalObj and
-	* generic/tclDecls.h: Tcl_GlobalEvalObj as macros, even when
-	* generic/tclBasic.c: TCL_NO_DEPRECATED is defined, so Tk can benefit
-	from it too.
-
-2013-01-14  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tcl.m4: More flexible search for win32 tclConfig.sh, backported
-	from TEA (not actually used in Tcl, only for Tk)
-
-2013-01-13  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclIntDecls.h: If TCL_NO_DEPRECATED is defined, make sure
-	that TIP #139 functions all are taken from the public stub table, even
-	if the inclusion is through tclInt.h.
-
-2013-01-09  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* library/http/http.tcl: [Bug 3599395]: http assumes status line is a
-	proper Tcl list.
-	Bump http package to 2.7.11.
-
-2013-01-08  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tclWinFile.c: [Bug 3092089]: [file normalize] can remove path
-	components.	[Bug 3587096]: win vista/7: "can't find init.tcl" when
-	called via junction without folder list access.
-
-2013-01-07  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tcl.decls: Extend the public stub table with dummy NULL
-	entries, up to the size of the Tcl 8.6 stub tables. This makes it
-	easier to debug extensions which use Tcl 8.6 features but (erroneously)
-	are attempted to be loaded in Tcl 8.5.
-
-2013-01-02  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclEnsemble.c:  Remove stray calls to Tcl_Alloc and friends:
-	* generic/tclExecute.c:   the core should only use ckalloc to allow
-	* generic/tclIORTrans.c:  MEM_DEBUG to work properly.
-	* generic/tclTomMathInterface.c:
-
-2012-12-31  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/string.n: Noted the obsolescence of the 'bytelength',
-	'wordstart' and 'wordend' subcommands, and moved them to later in the
-	file.
-
-2012-12-27  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclListObj.c: [Bug 3598580]: Tcl_ListObjReplace may release
-	deleted elements too early.
-
-2012-12-21  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* unix/dltest/pkgb.c:  Make pkgb.so loadable in Tcl 8.4 as well.
-	* generic/tclStubLib.c: Eliminate unnecessary static HasStubSupport()
-	and isDigit() functions, just do the same inline.
-
-2012-12-13  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tcl.h: Fix Tcl_DecrRefCount macro such that it
-	doesn't access its objPtr parameter twice any more.
-
-2012-12-07  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* unix/dltest/pkgb.c:  Turn pkgb.so into a Tcl9 interoperability test
-        library: Whatever Tcl9 looks like, loading pkgb.so in Tcl 9 should
-        either result in an error-message, either succeed, but never crash.
-
-2012-11-14  Donal K. Fellows  <dkf@users.sf.net>
-
-	* unix/tclUnixPipe.c (DefaultTempDir): [Bug 2933003]: Allow overriding
-	of the back-stop default temporary file location at compile time by
-	setting the TCL_TEMPORARY_FILE_DIRECTORY #def to a string containing
-	the directory name (defaults to "/tmp" as that is the most common
-	default).
-
-2012-11-13  Joe Mistachkin  <joe@mistachkin.com>
-
-	* win/tclWinInit.c: also search for the library directory (init.tcl,
-	encodings, etc) relative to the build directory associated with the
-	source checkout.
-
-2012-11-09  Don Porter  <dgp@users.sourceforge.net>
-
-	*** 8.5.13 TAGGED FOR RELEASE ***
-
-	* generic/tcl.h:	Bump to 8.5.13 for release.
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* win/configure.in:
-	* unix/tcl.spec:
-	* README:
-
-	* unix/configure:	autoconf-2.59
-	* win/configure:
-
-2012-11-07  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata/Africa/Casablanca:
-	* library/tzdata/America/Araguaina:
-	* library/tzdata/America/Bahia:
-	* library/tzdata/America/Havana:
-	* library/tzdata/Asia/Amman:
-	* library/tzdata/Asia/Gaza:
-	* library/tzdata/Asia/Hebron:
-	* library/tzdata/Asia/Jerusalem:
-	* library/tzdata/Pacific/Apia:
-	* library/tzdata/Pacific/Fakaofo:
-	* library/tzdata/Pacific/Fiji:		Import tzdata2012i.
-
-2012-11-07  Don Porter  <dgp@users.sourceforge.net>
-
-	* win/tclWinSock.c:	[Bug 3574493] Avoid hanging on exit due to
-	use of synchronization calls in routines called by DllMain().
-
-2012-11-06  Donal K. Fellows  <dkf@users.sf.net>
-
-	* library/http/http.tcl (http::Finish): [Bug 3581754]: Ensure that
-	callbacks are done at most once to prevent problems with timeouts on a
-	keep-alive connection (combined with reentrant http package use)
-	causing excessive stack growth. Not a fix for the underlying problem,
-	but ensures that pain will be mostly kept away from users.
-	Bump http package to 2.7.10.
-
-2012-10-23  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclInt.h:    Remove unused TclpLoadFile function.
-	* generic/tclIOUtil.c
-
-2012-10-14  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclDictObj.c: [Bug 3576509]: tcl::Bgerror crashes with invalid
-	* generic/tclEvent.c:    arguments. Better fix, which helps for all
-	Tcl_DictObjGet() calls in Tcl's source code.
-
-2012-10-13  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclEvent.c: [Bug 3576509]: tcl::Bgerror crashes with invalid
-	arguments
-
-2012-10-03  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclIO.c:	When checking for std channels being closed,
-	compare the channel state, not the channel itself so that stacked
-	channels do not cause trouble.
-
-2012-09-07  Harald Oehlmann  <oehhar@users.sf.net>
-
-	IMPLEMENTATION OF TIP#404.
-
-	* library/msgcat/msgcat.tcl:	[FRQ 3544988]: (Backport from Tcl 8.6)
-	* library/msgcat/pkgIndex.tcl:	New commands [mcflset] and [mcflmset]
-	* unix/Makefile.in:		to set mc entries with implicit message
-	* win/Makefile.in:		file locale. Bump to 1.5.0.
-	* tests/msgcat.test:
-
-2012-09-07  Alexandre Ferrieux <ferrieux@users.sourceforge.net>
-
-	* unix/tclUnixNotfy.c Backport of 2008-12-12 8.6 commit: Fix
-	missing CLOEXEC on internal pipes [2417695]
-
-2012-08-25  Donal K. Fellows  <dkf@users.sf.net>
-
-	* library/msgs/uk.msg: [Bug 3561330]: Use the correct full name of
-	March in Ukrainian. Thanks to Mikhail Teterin for reporting.
-
-2012-08-23  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclBinary.c: [Bug 3496014]: (Backport from Tcl 8.6) Protect
-	Tcl_SetByteArrayObj for invalid values.
-
-2012-08-20  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclPathObj.c:	[Bug 3559678]: Fix bad filename normalization
-	when the last component is the empty string.
-
-2012-08-20  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tclWinPort.h:  Remove wrapper macro for ntohs(): unnecessary,
-	because it doesn't require an initialized winsock_2 library. See:
-	<http://msdn.microsoft.com/en-us/library/windows/desktop/ms740075%28v=vs.85%29.aspx>
-	* win/tclWinSock.c:
-	* generic/tclStubInit.c:
-
-2012-08-17  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/nmakehlp.c: Add "-V<num>" option, in order to be able to detect
-	partial version numbers.
-
-2012-08-15  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/buildall.vc.bat: Only build the threaded builds by default
-	* win/rules.vc:        Backport some improvements from Tcl 8.6
-	* win/makefile.vc:
-
-2010-08-13  Stuart Cassoff  <stwo@users.sourceforge.net>
-
-	* unix/tclUnixCompat.c: [Bug 3555454]: Rearrange a bit to quash
-	'declared but never defined' compiler warnings.
-
-2012-08-08  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclfileName.c: [Bug #1536227]: Cygwin network pathname
-	* tests/fileName.test:   support
-
-2012-08-07  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclIOUtil.c:	[Bug 3554250]: Overlooked one field of cleanup
-	in the thread exit handler for the filesystem subsystem.
-
-2012-07-31  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/nmakehlp.c: Backport from Tcl 8.6, but add -Q option from
-	sampleextension.
-
-2012-07-28  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* tests/clock.test:    [Bug 3549770]: Multiple test failures running
-	* tests/registry.test: tcltest outside build tree
-	* tests/winDde.test:
-
-2012-07-27  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclUniData.c:   Support Unicode 6.2 (Add Turkish lira sign)
-	* generic/regc_locale.c:
-
-2012-07-24  Don Porter  <dgp@users.sourceforge.net>
-
-	*** 8.5.12 TAGGED FOR RELEASE ***
-
-	* generic/tcl.h:	Bump to 8.5.12 for release.
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-	* README:
-
-	* unix/configure:	autoconf-2.59
-	* win/configure:
-
-	* changes:	Update for 8.5.12 release.
-
-2012-07-19  Joe Mistachkin  <joe@mistachkin.com>
-
-	* generic/tclTest.c: Fix several more missing mutex-locks in
-	TestasyncCmd.
-
-2012-07-19  Alexandre Ferrieux  <ferrieux@users.sourceforge.net>
-
-	* generic/tclTest.c: [Bug 3544685]: Missing mutex-lock in
-	TestasyncCmd since 2011-08-19. Unbounded gratitude to Stuart
-	Cassoff for spotting it.
-
-2012-07-17  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/makefile.vc: [Bug 3544932]: Visual studio compiler check fails
-
-2012-07-16  Donal K. Fellows  <dkf@users.sf.net>
-
-	* unix/tclUnixCompat.c (TclpGetPwNam, TclpGetPwUid, TclpGetGrNam)
-	(TclpGetGrGid): [Bug 3544683]: Use the elaborate memory management
-	scheme outlined on http://www.opengroup.org/austin/docs/austin_328.txt
-	to handle Tcl's use of standard reentrant versions of the passwd/group
-	access functions so that everything can work on all BSDs. Problem
-	identified by Stuart Cassoff.
-
-2012-07-11  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tclWinReg.c: [Bug 3362446]: registry keys command fails
-	with 8.5/8.6. Follow Microsofts example better in order to prevent
-	problems when using HKEY_PERFORMANCE_DATA.
-
-2012-07-10  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* unix/tclUnixNotfy.c: [Bug 3541646]: Don't panic on triggerPipe
-	overrun.
-
-2012-07-10  Donal K. Fellows  <dkf@users.sf.net>
-
-	* win/tclWinSock.c (InitializeHostName): Corrected logic that
-	extracted the name of the computer from the gethostname call so that
-	it would use the name on success, not failure. Also ensured that the
-	buffer size is exactly that recommended by Microsoft.
-
-2012-07-05  Don Porter  <dgp@users.sourceforge.net>
-
-	* unix/tclUnixPipe.c:	[Bug 1189293]: Make "<<" binary safe.
-	* win/tclWinPipe.c:
-
-2012-06-29  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* library/msgcat/msgcat.tcl:   Add tn, ro_MO and ru_MO to msgcat.
-
-2012-06-29  Harald Oehlmann <oehhar@users.sf.net>
-
-	* library/msgcat/msgcat.tcl:	[Bug 3536888]: Locale guessing of
-	* library/msgcat/pkgIndex.tcl:	msgcat fails on (some) Windows 7. Bump
-	* unix/Makefile.in:		to 1.4.5
-	* win/Makefile.in:
-
-2012-06-29  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/GetIndex.3: Reinforced the description of the requirement for
-	the tables of names to index over to be static, following posting to
-	tcl-core by Brian Griffin about a bug caused by Tktreectrl not obeying
-	this rule correctly. This does not represent a functionality change,
-	merely a clearer documentation of a long-standing constraint.
-
-2012-06-25  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclFileSystem.h:	[Bug 3024359]: Make sure that the
-	* generic/tclIOUtil.c:	per-thread cache of the list of file systems
-	* generic/tclPathObj.c:	currently registered is only updated at times
-	when no active loops are traversing it.  Also reduce the amount of
-	epoch storing and checking to where it can make a difference.
-
-2012-06-25  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCmdAH.c (EncodingDirsObjCmd): [Bug 3537605]: Do the right
-	thing when reporting errors with the number of arguments.
-
-2012-06-25  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclfileName.c: [Patch 1536227]: Cygwin network pathname
-	* tests/fileName.test:   support
-
-2012-06-23  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* unix/tclUnixNotfy.c: [Bug 3508771]: Cygwin notifier for handling
-	win32 events.
-
-2012-06-21  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tclWinReg.c:	[Bug 3362446]: registry keys command fails
-	* tests/registry.test:	with 8.5/8.6
-	* library/reg/pkgIndex.tcl: registry version to 1.2.2
-
-2012-06-11  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	[Bug 3532959]: Make sure the lifetime
-	* generic/tclProc.c:	management of entries in the linePBodyPtr
-	* tests/proc.test:	hash table can tolerate either order of
-	teardown, interp first, or Proc first.
-
-2012-06-08  Don Porter  <dgp@users.sourceforge.net>
-
-	* unix/configure.in:	Update autogoo for gettimeofday().
-	* unix/tclUnixPort.h:	Thanks Joe English.
-	* unix/configure:	autoconf 2.13
-
-	* unix/tclUnixPort.h:	[Bug 3530533]: Centralize #include <pthread.h>
-	* unix/tclUnixThrd.c:	in the tclUnixPort.h header so that old unix
-	systems that need inclusion in all compilation units are supported.
-
-2012-06-06  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* unix/tclUnixInit.c: On Cygwin, use win32 API in stead of uname()
-	to determine the tcl_platform variables.
-
-2012-05-31  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/safe.n: [Bug 1997845]: Corrected formatting so that generated
-	* tools/tcltk-man2html.tcl (cross-reference): HTML can link properly.
-
-2012-05-29  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/expr.n, doc/mathop.n: [Bug 2931407]: Clarified semantics of
-	division and remainder operators.
-
-2012-05-25  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/namespace.n, doc/Ensemble.3: [Bug 3528418]: Document what is
-	going on with respect to qualification of command prefixes in ensemble
-	subcommand maps.
-
-2012-05-25  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tclWinDde.c: [Bug 473946]: Special characters were not correctly
-	sent, now for XTYP_EXECUTE as well as XTYP_REQUEST.
-	* win/Makefile.in: Fix "make genstubs" when cross-compiling on UNIX
-
-2012-05-24  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* tools/genStubs.tcl:  Take cygwin handling of X11 into account.
-	* generic/tcl*Decls.h: re-generated
-	* generic/tclStubInit.c:  Implement TclpIsAtty, Cygwin only.
-	* doc/dde.n: Doc fix: "dde execute iexplore" doesn't work
-	without -async, because iexplore doesn't return a value
-
-2012-05-22  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* tools/genStubs.tcl:   Let cygwin share stub table with win32
-	* win/Makefile.in:      Don't hardcode dde and reg dll version numbers
-	* win/tclWinSock.c:     implement TclpInetNtoa for win32
-	* generic/tclInt.decls: Revert most of [fcc5957e59], since when
-	  we let cygwin share the win32 stub table this is no longer necessary
-	* generic/tcl*Decls.h:  re-generated
-
-2012-05-21  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclFileName.c: When using Tcl_SetObjLength() calls to grow
-	* generic/tclIOUtil.c:	 and shrink the objPtr->bytes buffer, care must
-	be taken that the value cannot possibly become pure Unicode.  Calling
-	Tcl_AppendToObj() has the possibility of making such a conversion.  Bug
-	found while valgrinding the trunk.
-
-2012-05-17  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCmdMZ.c (Tcl_SwitchObjCmd): [Bug 3106532]: Corrected
-	resulting indexes from -indexvar option to be usable with [string
-	range]; this was always the intention (and is consistent with [regexp
-	-indices] too).
-	***POTENTIAL INCOMPATIBILITY***
-	Uses of [switch -regexp -indexvar] that previously compensated for the
-	wrong offsets (by subtracting 1 from the end indices) now do not need
-	to do so as the value is correct.
-
-	* library/safe.tcl (safe::InterpInit): Ensure that the module path is
-	constructed in the correct order.
-	(safe::AliasGlob): [Bug 2964715]: More extensive handling of what
-	globbing is required to support package loading.
-
-	* doc/expr.n: [Bug 3525462]: Corrected statement about what happens
-	when comparing "0y" and "0x12"; the previously documented behavior was
-	actually a subtle bug (now long-corrected).
-
-2012-05-13  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tclWinDde.c:   Protect against receiving strings without ending
-	\0, as external applications (or Tcl with TIP #106) could generate
-	that.
-
-2012-05-10  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tclWinDde.c: [Bug 473946]: Special characters not correctly sent
-	* library/dde/pkgIndex.tcl:  Increase version to 1.3.3
-
-2012-05-02  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/configure.in:		Better detection and implementation for
-	* generic/configure:		cpuid instruction on Intel-derived
-	* generic/tclUnixCompat.c:	processors, both 32-bit and 64-bit.
-	* generic/tclTest.c:		Move cpuid testcase from win-specific
-	* win/tclWinTest.c:		to generic tests, as it should work on
-	* tests/platform.test:		all Intel-related platforms now
-
-2012-04-27  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclPort.h:    Move CYGWIN-specific stuff from tclPort.h to
-	* generic/tclEnv.c:     tclUnixPort.h, where it belongs.
-	* unix/tclUnixPort.h:
-	* unix/tclUnixFile.c:
-
-2012-04-27  Donal K. Fellows  <dkf@users.sf.net>
-
-	* library/init.tcl (auto_execok): Allow shell builtins to be detected
-	even if they are upper-cased.
-
-2012-04-26  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclStubInit.c:    get rid of _ANSI_ARGS_
-	* generic/tclIntPlatDecls.h
-	* unix/tclUnixPort.h
-	* unix/tclAppInit.c
-	* win/tclAppInit.c
-
-2012-04-24  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclInt.decls:		[Bug 3508771]: load tclreg.dll in
-	* generic/tclIntPlatDecls.h:	cygwin tclsh. Implement
-	* generic/tclStubInit.c:	TclWinGetSockOpt, TclWinGetServByName
-	* generic/tclUnixCompat.c:	and TclWinCPUID for Cygwin.
-	* unix/configure.in:
-	* unix/configure:
-	* unix/tclUnixCompat.c:
-
-2012-04-18  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata/Africa/Casablanca:
-	* library/tzdata/America/Port-au-Prince:
-	* library/tzdata/Asia/Damascus:
-	* library/tzdata/Asia/Gaza:
-	* library/tzdata/Asia/Hebron: tzdata2012c
-
-2012-04-16  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/FileSystem.3 (Tcl_FSOpenFileChannelProc): [Bug 3518244]: Fixed
-	documentation of this filesystem callback function; it must not
-	register its created channel - that's the responsibility of the caller
-	of Tcl_FSOpenFileChannel - as that leads to reference leaks.
-
-2012-04-11  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tclWinInit.c:     [Bug 3448512]: clock scan "1958-01-01" fails
-	* win/tcl.m4:           only in debug compilation.
-	* win/configure:
-	* unix/tcl.m4:          Use NDEBUG consistantly meaning: no debugging.
-	* unix/configure:
-
-2012-04-04  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tclWinSock.c:	[Bug 510001]: TclSockMinimumBuffers needs
-	* generic/tclIOSock.c:	platform implementation.
-	* generic/tclInt.decls:
-	* generic/tclIntDecls.h:
-	* generic/tclStubInit.c:
-
-2012-04-03  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclStubInit.c: Remove the TclpGetTZName implementation for
-	* generic/tclIntDecls.h: Cygwin (from 2012-04-02 commit), re-generated
-	* generic/tclIntPlatDecls.h:
-	* generic/tcl.decls:		cleanup unnecessary "generic" argument
-
-2012-03-30  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclInt.decls: [Bug 3508771]: load tclreg.dll in cygwin tclsh
-	* generic/tclIntPlatDecls.h: Implement TclWinGetTclInstance,
-	* generic/tclStubInit.c:     TclpGetTZName, and various more
-	win32-specific internal functions for Cygwin, so win32 extensions
-	using those can be loaded in the cygwin version of tclsh.
-
-2012-03-30  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* unix/tcl.m4:        [Bug 3511806]: Compiler checks too early
-	* unix/configure.in:  This change allows to build the cygwin and
-	* unix/tclUnixPort.h: mingw32 ports of Tcl/Tk to build out-of-the-box
-	* win/tcl.m4:         using a native or cross-compiler.
-	* win/configure.in:
-	* win/tclWinPort.h:
-
-2012-03-27  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tcl.h:      [Bug 3508771]: Wrong Tcl_StatBuf used on MinGW.
-	* generic/tclFCmd.c:  [Bug 2015723]: Duplicate inodes from file stat
-	on windows (but now for cygwin as well)
-
-2012-03-25  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclInt.decls:      [Bug 3508771]: load tclreg.dll in cygwin
-	* generic/tclIntPlatDecls.h: tclsh. Implement TclWinConvertError,
-	* generic/tclStubInit.c:     TclWinConvertWSAError, and various more
-	* unix/Makefile.in:          win32-specific internal functions for
-	* unix/tcl.m4:               Cygwin, so win32 extensions using those
-	* unix/configure:            can be loaded in the cygwin version of
-	* win/tclWinError.c:         tclsh.
-
-2012-03-23  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclInt.decls:       Revert some cygwin-related signature
-	* generic/tclIntPlatDecls.h:  changes from [835f8e1e9d] (2010-01-22).
-	* win/tclWinError.c:          They were an attempt to make the cygwin
-	                              port compile again, but since cygwin is
-	                              based on unix this serves no purpose any
-	                              more.
-	* win/tclWinSerial.c:         Use EAGAIN in stead of EWOULDBLOCK,
-	* win/tclWinSock.c:           because in VS10+ the value of
-	                              EWOULDBLOCK is no longer the same as
-	                              EAGAIN.
-	* unix/Makefile.in:           Add tclWinError.c to the CYGWIN build.
-	* unix/tcl.m4:
-	* unix/configure:
-
-2012-03-20  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tcl.decls:         [Bug 3508771]: load tclreg.dll in cygwin
-	* generic/tclInt.decls:      tclsh. Implement TclWinGetPlatformId,
-	* generic/tclIntPlatDecls.h: Tcl_WinUtfToTChar, Tcl_WinTCharToUtf (and
-	* generic/tclPlatDecls.h:    a dummy TclWinCPUID) for Cygwin, so win32
-	* generic/tclStubInit.c:     extensions using those can be loaded in
-	* unix/tclUnixCompat.c:      the cygwin version of tclsh.
-
-2012-03-19  Venkat Iyer <venkat@comit.com>
-
-	* library/tzdata/America/Atikokan: Update to tzdata2012b.
-	* library/tzdata/America/Blanc-Sablon:
-	* library/tzdata/America/Dawson_Creek:
-	* library/tzdata/America/Edmonton:
-	* library/tzdata/America/Glace_Bay:
-	* library/tzdata/America/Goose_Bay:
-	* library/tzdata/America/Halifax:
-	* library/tzdata/America/Havana:
-	* library/tzdata/America/Moncton:
-	* library/tzdata/America/Montreal:
-	* library/tzdata/America/Nipigon:
-	* library/tzdata/America/Rainy_River:
-	* library/tzdata/America/Regina:
-	* library/tzdata/America/Santiago:
-	* library/tzdata/America/St_Johns:
-	* library/tzdata/America/Swift_Current:
-	* library/tzdata/America/Toronto:
-	* library/tzdata/America/Vancouver:
-	* library/tzdata/America/Winnipeg:
-	* library/tzdata/Antarctica/Casey:
-	* library/tzdata/Antarctica/Davis:
-	* library/tzdata/Antarctica/Palmer:
-	* library/tzdata/Asia/Yerevan:
-	* library/tzdata/Atlantic/Stanley:
-	* library/tzdata/Pacific/Easter:
-	* library/tzdata/Pacific/Fakaofo:
-	* library/tzdata/America/Creston: (new)
-
-2012-03-15  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tcl.h: [Bug 3288345]: Wrong Tcl_StatBuf used on Cygwin
-	* unix/tclUnixFile.c:
-	* unix/tclUnixPort.h:
-	* win/cat.c:           Remove cygwin stuff no longer needed
-	* win/tclWinFile.c:
-	* win/tclWinPort.h:
-
-2012-03-12  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tclWinFile.c: [Bug 3388350]: mingw64 compiler warnings
-
-2012-03-07  Andreas Kupries  <andreask@activestate.com>
-
-	* library/http/http.tcl: [Bug 3498327]: Generate upper-case
-	* library/http/pkgIndex.tcl: hexadecimal output for compliance
-	* tests/http.test: with RFC 3986. Bumped version to 2.7.9.
-	* unix/Makefile.in:
-	* win/Makefile.in:
-
-2012-03-06  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tclWinPort.h: Compatibility with older Visual Studio versions.
-
-2012-03-04  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclLoad.c: Patch from the cygwin folks
-	* unix/tcl.m4:
-	* unix/configure: (re-generated)
-
-2012-02-29  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclIOUtil.c:	[Bug 3466099]: BOM in Unicode
-	* generic/tclEncoding.c:
-	* tests/source.test:
-
-2012-02-23  Donal K. Fellows  <dkf@users.sf.net>
-
-	* tests/reg.test (14.21-23): Add tests relating to bug 1115587. Actual
-	bug is characterised by test marked with 'knownBug'.
-
-2012-02-17  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclIOUtil.c: [Bug 2233954]: AIX: compile error
-	* unix/tclUnixPort.h:
-
-2012-02-15  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCompCmds.c (TclCompileDictForCmd): [Bug 3487626]: Fix
-	crash in compilation of [dict for] when its implementation command is
-	used directly rather than through the ensemble.
-
-2012-02-09  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStringObj.c:	[Bug 3484402]: Correct Off-By-One
-	error appending unicode. Thanks to Poor Yorick. Also corrected test
-	for when growth is needed.
-
-2012-02-06  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCompCmds.c: [Bug 3485022]: TclCompileEnsemble() avoid
-	* tests/trace.test:	compile when exec traces set.
-
-2012-02-06  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclTrace.c:  [Bug 3484621]: Ensure that execution traces on
-	* tests/trace.test:    bytecoded commands bump the interp's compile
-	epoch.
-
-2012-02-02  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclUniData.c: [FRQ 3464401]: Support Unicode 6.1
-	* generic/regc_locale.c:
-
-2012-02-02  Don Porter  <dgp@users.sourceforge.net>
-
-	* win/tclWinFile.c:	[Bugs 2974459,2879351,1951574,1852572,
-	1661378,1613456]: Revisions to the NativeAccess() routine that queries
-	file permissions on Windows native filesystems.  Meant to fix numerous
-	bugs where [file writable|readable|executable] "lies" about what
-	operations are possible, especially when the file resides on a Samba
-	share.
-
-2012-02-01  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/AddErrInfo.3: [Bug 3482614]: Documentation nit.
-
-2012-01-26  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclPathObj.c:	[Bug 3475569]: Add checks for unshared values
-	before calls demanding them.  [Bug 3479689]: Stop memory corruption
-	when shimmering 0-refCount value to "path" type.
-
-2012-01-22  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* tools/uniClass.tcl:    [FRQ 3473670]: Various Unicode-related
-	* tools/uniParse.tcl:    speedups/robustness. Enhanced tools to be
-	* generic/tclUniData.c:  able to handle characters > 0xFFFF. Done in
-	* generic/tclUtf.c:      all branches in order to simplify merges for
-	* generic/regc_locale.c: new Unicode versions (such as 6.1)
-
-2012-01-22  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclDictObj.c (DictExistsCmd): [Bug 3475264]: Ensure that
-	errors only ever happen when insufficient arguments are supplied, and
-	not when a path doesn't exist or a dictionary is poorly formatted (the
-	two cases can't be easily distinguished).
-
-2012-01-21  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tcl.h:        [Bug 3474726]: Eliminate detection of struct
-	* generic/tclWinPort.h: _stat32i64, just use _stati64 in combination
-	* generic/tclFCmd.c:    with _USE_32BIT_TIME_T, which is the same
-	* generic/tclTest.c:    then. Only keep _stat32i64 usage for cygwin,
-	* win/configure.in:     so it will not conflict with cygwin's own
-	* win/configure:	struct stat.
-
-2012-01-21  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c:	[Bug 3475667]: Prevent buffer read overflow.
-	Thanks to "sebres" for the report and fix.
-
-2012-01-17  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/dict.n (dict with): [Bug 3474512]: Explain better what is going
-	on when a dictionary key and the dictionary variable collide.
-
-2012-01-17  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/http/http.tcl:	Bump to version 2.7.8
-	* library/http/pkgIndex.tcl:
-	* unix/Makefile.in:
-	* win/Makefile.in:
-
-2012-01-13  Donal K. Fellows  <dkf@users.sf.net>
-
-	* library/http/http.tcl (http::Connect): [Bug 3472316]: Ensure that we
-	only try to read the socket error exactly once.
-
-2012-01-09  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclUtf.c:      [Bug 3464428]: [string is graph \u0120] was
-	* generic/regc_locale.c: wrong. Add table for Unicode [:cntrl:] class.
-	* tools/uniClass.tcl:    Generate Unicode [:cntrl:] class table.
-	* tests/utf.test:
-
-2012-01-08  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/clock.tcl (ReadZoneinfoFile): [Bug 3470928]: Corrected a bug
-	* tests/clock.test (clock-56.4):        where loading zoneinfo would
-	fail if one timezone abbreviation was a proper tail of another, and
-	zic used the same bytes of the file to represent both of them. Added a
-	test case for the bug, using the same data that caused the observed
-	failure "in the wild."
-
-2011-12-30  Venkat Iyer <venkat@comit.com>
-
-	* library/tzdata/America/Bahia:		Update to Olson's tzdata2011n
-	* library/tzdata/America/Havana:
-	* library/tzdata/Europe/Kiev:
-	* library/tzdata/Europe/Simferopol:
-	* library/tzdata/Europe/Uzhgorod:
-	* library/tzdata/Europe/Zaporozhye:
-	* library/tzdata/Pacific/Fiji:
-
-2011-12-23  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclUtf.c: [Bug 3464428]: [string is graph \u0120] is wrong.
-	* generic/tclUniData.c:
-	* generic/regc_locale.c:
-	* tests/utf.test:
-	* tools/uniParse.tcl:   Clean up some unused stuff, and be more robust
-	against changes in UnicodeData.txt syntax
-
-2011-12-11  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/regc_locale.c: [Bug 3457031]: Some Unicode 6.0 chars not
-	* tests/utf.test:        in [:print:] class
-
-2011-12-07  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* tools/uniParse.tcl:    [Bug 3444754]: string tolower \u01c5 is wrong
-	* generic/tclUniData.c:
-	* tests/utf.test:
-
-2011-11-30  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* library/tcltest/tcltest.tcl: [Bug 967195]: Make tcltest work
-	when tclsh is compiled without using the setargv() function on mingw.
-
-2011-11-29  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* doc/tclsh.1:  Use the same shebang comment everywhere.
-	* tools/str2c
-	* tools/tcltk-man2html.tcl
-	* win/Makefile.in: don't install tommath_(super)?class.h
-	* unix/Makefile.in: don't install directories like 8.2 and 8.3
-
-2011-11-22  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tclWinPort.h: [Bug 3354324]: Windows: [file mtime] sets wrong
-	* win/tclWinFile.c: time (VS2005+ only).
-	* generic/tclTest.c:
-
-2011-11-04  Don Porter  <dgp@users.sourceforge.net>
-
-	*** 8.5.11 TAGGED FOR RELEASE ***
-
-	* generic/tcl.h:	Bump to 8.5.11 for release.
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-	* README:
-
-	* unix/configure:	autoconf-2.59
-	* win/configure:
-
-	* changes:	Update for 8.5.11 release.
-
-2011-10-20  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/http/http.tcl:	Bump to version 2.7.7
-	* library/http/pkgIndex.tcl:
-	* unix/Makefile.in:
-	* win/Makefile.in:
-
-	* changes:	Updates for 8.5.11 release.
-
-2011-10-18  Reinhard Max  <max@suse.de>
-
-	* library/clock.tcl (::tcl::clock::GetSystemTimeZone): Cache the time
-	zone only if it was detected by one of the expensive methods.
-	Otherwise after unsetting TCL_TZ or TZ the previous value will still
-	be used.
-
-2011-10-15  Venkat Iyer <venkat@comit.com>
-
-	* library/tzdata/America/Sitka: Update to Olson's tzdata2011l
-	* library/tzdata/Pacific/Fiji:
-	* library/tzdata/Asia/Hebron: (New)
-
-2011-10-11  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tclWinFile.c:    [Bug 2935503]: Incorrect mode field returned by
-	[file stat] command.
-
-2011-10-07  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclIORChan.c:	Fix gcc warning (discovered with latest
-	mingw, based on gcc 4.6.1)
-	* tests/env.test:	Fix env.test running under wine 1.3 (partly
-	backported from Tcl 8.6)
-
-2011-10-03  Venkat Iyer <venkat@comit.com>
-
-	* library/tzdata/Africa/Dar_es_Salaam: Update to Olson's tzdata2011k
-	* library/tzdata/Africa/Kampala:
-	* library/tzdata/Africa/Nairobi:
-	* library/tzdata/Asia/Gaza:
-	* library/tzdata/Europe/Kaliningrad:
-	* library/tzdata/Europe/Kiev:
-	* library/tzdata/Europe/Minsk:
-	* library/tzdata/Europe/Simferopol:
-	* library/tzdata/Europe/Uzhgorod:
-	* library/tzdata/Europe/Zaporozhye:
-	* library/tzdata/Pacific/Apia:
-
-2011-09-16  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclProc.c (ProcWrongNumArgs): [Bugs 3400658,3408830]:
-	Corrected the handling of procedure error messages (found by TclOO).
-
-2011-09-16  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tcl.h:        Don't change Tcl_UniChar type when
-	* generic/regcustom.h:  TCL_UTF_MAX == 4 (not supported anyway)
-
-2011-09-16  Donal K. Fellows  <dkf@users.sf.net>
-
-	* library/http/http.tcl (http::geturl): [Bug 3391977]: Ensure that the
-	-headers option overrides the -type option (important because -type
-	has a default that is not always appropriate, and the header must not
-	be duplicated).
-
-2011-09-13  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclUtil.c:	[Bug 3390638]: Workaround broken Solaris
-	Studio cc optimizer.  Thanks to Wolfgang S. Kechel.
-
-	* generic/tclDTrace.d:	[Bug 3405652]: Portability workaround for
-	broken system DTrace support.  Thanks to Dagobert Michelson.
-
-2011-09-12  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tclWinPort.h: [Bug 3407070]: tclPosixStr.c won't build with
-	EOVERFLOW==E2BIG
-
-2011-09-07  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c: [Bug 3401704]: Allow function names like
-	* tests/parseExpr.test:	 influence(), nanobot(), and 99bottles() that
-	have been parsed as missing operator syntax errors before with the
-	form NUMBER + FUNCTION.
-	***POTENTIAL INCOMPATIBILITY***
-
-2011-09-06  Venkat Iyer <venkat@comit.com>
-
-	* library/tzdata/America/Goose_Bay: Update to Olson's tzdata2011i
-	* library/tzdata/America/Metlakatla:
-	* library/tzdata/America/Resolute:
-	* library/tzdata/America/St_Johns:
-	* library/tzdata/Europe/Kaliningrad:
-	* library/tzdata/Pacific/Apia:
-	* library/tzdata/Pacific/Honolulu:
-	* library/tzdata/Africa/Juba: (new)
-
-2011-09-01  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStrToD.c:	[Bug 3402540]: Corrections to TclParseNumber()
-	* tests/binary.test:	to make it reject invalid Nan(Hex) strings.
-
-	* tests/scan.test:	[scan Inf %g] is portable; remove constraint.
-
-2011-08-30  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclInterp.c (SlaveCommandLimitCmd, SlaveTimeLimitCmd):
-	[Bug 3398794]: Ensure that low-level conditions in the limit API are
-	enforced at the script level through errors, not a Tcl_Panic. This
-	means that interpreters cannot read their own limits (writing already
-	did not work).
-
-2011-08-19  Alexandre Ferrieux  <ferrieux@users.sourceforge.net>
-
-	* generic/tclTest.c: [Bug 2981154]: async-4.3 segfault.
-	* tests/async.test:  [Bug 1774689]: async-4.3 sometimes fails.
-
-2011-08-18  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclUniData.c: [Bug 3393714]: Overflow in toupper delta
-	* tools/uniParse.tcl:
-	* tests/utf.test:
-
-2011-08-17  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclGet.c: [Bug 3393150]: Overlooked free of intreps.
-	(It matters for bignums!)
-
-2011-08-16  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclCmdAH.c:    [Bug 3388350]: mingw64 compiler warnings
-	* generic/tclFCmd.c      In mingw, sys/stat.h must be included
-	* generic/tclFileName.c  before winsock2.h, so make sure of that.
-	* generic/tclIOUtil.c
-	* generic/tclBasic.c
-	* generic/tclBinary.c
-	* generic/tclHash.c
-	* generic/tclTest.c
-	* win/tclWinChan.c
-	* win/tclWinConsole.c
-	* win/tclWinDde.c
-	* win/tclWinFile.c
-	* win/tclWinReg.c
-	* win/tclWinSerial.c
-	* win/tclWinSock.c
-	* win/tclWinThrd.c
-
-2011-08-15  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c: [Bug 3390272]: Leak of [info script] value.
-
-2011-08-15  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclPosixStr.c:    [Bug 3388350]: mingw64 compiler warnings
-	* generic/tclStrToD.c
-	* win/tclWinPort.h:
-	* win/tclWinPipe.c:
-	* win/tclWinSock.c:
-	* win/configure.in:
-	* win/configure:
-
-2011-08-12  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclPathObj.c:	[Bug 3389764]: Eliminate possibility that dup
-	of a "path" value can create reference cycle.
-
-2011-08-09  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tclWinConsole.c: [Bug 3388350]: mingw64 compiler warnings
-	* win/tclWinDde.c:
-	* win/tclWinPipe.c:
-	* win/tclWinSerial.c:
-
-2011-08-05  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclStrToD.c: [Bug 3386975]: Plugged a memory leak in
-	double->string conversion.
-
-2011-07-28  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/tzdata/Asia/Anadyr: Update to Olson's tzdata2011h
-	* library/tzdata/Asia/Irkutsk:
-	* library/tzdata/Asia/Kamchatka:
-	* library/tzdata/Asia/Krasnoyarsk:
-	* library/tzdata/Asia/Magadan:
-	* library/tzdata/Asia/Novokuznetsk:
-	* library/tzdata/Asia/Novosibirsk:
-	* library/tzdata/Asia/Omsk:
-	* library/tzdata/Asia/Sakhalin:
-	* library/tzdata/Asia/Vladivostok:
-	* library/tzdata/Asia/Yakutsk:
-	* library/tzdata/Asia/Yekaterinburg:
-	* library/tzdata/Europe/Kaliningrad:
-	* library/tzdata/Europe/Moscow:
-	* library/tzdata/Europe/Samara:
-	* library/tzdata/Europe/Volgograd:
-	* library/tzdata/America/Kralendijk: (new)
-	* library/tzdata/America/Lower_Princes: (new)
-
-2011-07-21  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tclWinPort.h: [Bug 3372130]: Fix hypot math function with MSVC10
-
-2011-07-19  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclUtil.c:	[Bug 3371644]: Repair failure to properly handle
-	* tests/util.test: (length == -1) scanning in TclConvertElement().
-	Thanks to Thomas Sader and Alexandre Ferrieux.
-
-2011-07-15  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCompile.c: Avoid segfaults when RecordByteCodeStats()
-	is called in a deleted interp.
-
-2011-07-08  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/http.n: [FRQ 3358415]: State what RFC defines HTTP/1.1.
-
-2011-07-03  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/FileSystem.3: Corrected statements about ctime field of 'struct
-	stat'; that was always the time of the last metadata change, not the
-	time of creation.
-
-2011-07-02  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclStrToD.c:
-	* generic/tclTomMath.decls:
-	* generic/tclTomMathDecls.h:
-	* macosx/Tcl.xcode/project.pbxproj:
-	* macosx/Tcl.xcodeproj/project.pbxproj:
-	* tests/util.test:
-	* unix/Makefile.in:
-	* win/Makefile.in:
-	* win/Makefile.vc:
-	[Bug 3349507]: Fix a bug where bignum->double conversion is "round up"
-	and not "round to nearest" (causing expr double(1[string repeat 0 23])
-	not to be 1e+23).
-
-2011-06-30  Reinhard Max  <max@suse.de>
-
-	* unix/configure.in: Add a volatile declaration to the test for
-	TCL_STACK_GROWS_UP to prevent gcc 4.6 from producing invalid
-	results due to aggressive optimisation.
-
-2011-06-23  Don Porter  <dgp@users.sourceforge.net>
-
-	*** 8.5.10 TAGGED FOR RELEASE ***
-
-	* changes:	Update for 8.5.10 release.
-
-2011-06-22  Andreas Kupries  <andreask@activestate.com>
-
-	* library/platform/pkgIndex.tcl: Updated to platform 1.0.10. Added
-	* library/platform/platform.tcl: handling of the DEB_HOST_MULTIARCH
-	* unix/Makefile.in: location change for libc.
-	* win/Makefile.in:
-
-	* generic/tclInt.h: Fixed the inadvertently committed disabling of
-	stack checks, see my 2010-11-15 commit.
-
-2011-06-21  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes:	Update for 8.5.10 release.
-
-	* library/tcltest/tcltest.tcl (loadIntoSlaveInterpreter):
-	* library/tcltest/pkgIndex.tcl: Backport tcltest 2.3.3 for release
-	* unix/Makefile.in: with Tcl 8.5.*.
-	* win/Makefile.in:
-
-	* tests/init.test:	Update test files to use new command.
-	* tests/pkg.test:
-
-	* generic/tclLink.c:	[Bug 3317466]: Prevent multiple links to a
-	single Tcl variable when calling Tcl_LinkVar().
-
-2011-06-13  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStrToD.c:  [Bug 3315098]: Mem leak fix from Gustaf
-	Neumann.
-
-2011-06-02  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Removed TclCleanupLiteralTable(), and old
-	* generic/tclInt.h:	band-aid routine put in place while a fix for
-	* generic/tclLiteral.c:	[Bug 994838] took shape.  No longer needed.
-
-2011-06-02  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclInt.h (TclInvalidateNsCmdLookup): [Bug 3185407]: Extend
-	the set of epochs that are potentially bumped when a command is
-	created, for a slight performance drop (in some circumstances) and
-	improved semantics.
-
-2011-06-01  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclUtil.c:   Fix for [Bug 3309871]: Valgrind finds: invalid
-	read in TclMaxListLength().
-
-2011-05-25  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/msgcat/msgcat.tcl:	Backport improvements to msgcat
-	* library/msgcat/pkgIndex.tcl:	package.  Bump to 1.4.4
-	* unix/Makefile.in
-	* win/Makefile.in
-
-2011-05-24  Venkat Iyer <venkat@comit.com>
-
-	* library/tzdata/Africa/Cairo: Update to Olson tzdata2011g
-
-2011-05-17  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclCompile.c (TclFixupForwardJump): Tracked down and fixed
-	* generic/tclBasic.c (TclArgumentBCEnter): the cause of a violation of
-	my assertion that 'ePtr->nline == objc' in TclArgumentBCEnter.  When a
-	bytecode was grown during jump fixup the pc -> command line mapping
-	was not updated. When things aligned just wrong the mapping would
-	direct command A to the data for command B, with a different number of
-	arguments.
-
-2011-05-10  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclInt.h:     New internal routines TclScanElement() and
-	* generic/tclUtil.c:    TclConvertElement() are rewritten guts of
-	machinery to produce string rep of lists.  The new routines avoid and
-	correct [Bug 3173086].  See comments for much more detail.
-
-	* generic/tclDictObj.c:         Update all callers.
-	* generic/tclIndexObj.c:
-	* generic/tclListObj.c:
-	* generic/tclUtil.c:
-	* tests/list.test:
-
-2011-05-09  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclListObj.c:	Revise empty string tests so that we avoid
-	potentially expensive string rep generations, especially for dicts.
-
-2011-05-07  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclInt.h: Fix USE_TCLALLOC so that it can be enabled without
-	* unix/Makefile.in: editing the Makefile.
-
-2011-05-05  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclListObj.c:	Stop generating string rep of dict when
-	converting to list.  Tolerate NULL interps more completely.
-
-2011-05-03  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclUtil.c:	Tighten Tcl_SplitList().
-	* generic/tclListObj.c:	Tighten SetListFromAny().
-	* generic/tclDictObj.c:	Tighten SetDictFromAny().
-
-2011-05-02  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c:	Revised TclFindElement() interface. The final
-	* generic/tclDictObj.c:	argument had been bracePtr, the address of a
-	* generic/tclListObj.c:	boolean var, where the caller can be told
-	* generic/tclParse.c:	whether or not the parsed list element was
-	* generic/tclUtil.c:	enclosed in braces.  In practice, no callers
-	really care about that.  What the callers really want to know is
-	whether the list element value exists as a literal substring of the
-	string being parsed, or whether a call to TclCopyAndCollpase() is
-	needed to produce the list element value.  Now the final argument is
-	changed to do what callers actually need. This is a better fit for the
-	calls in tclParse.c, where now a good deal of post-processing checking
-	for "naked backslashes" is no longer necessary.
-	***POTENTIAL INCOMPATIBILITY***
-	For any callers calling in via the internal stubs table who really do
-	use the final argument explicitly to check for the enclosing brace
-	scenario.  Simply looking for the braces where they must be is the
-	revision available to those callers, and it will backport cleanly.
-
-	* tests/parse.test:	Tests for expanded literals quoting detection.
-
-	* generic/tclCompCmds.c:	New TclFindElement() is also a better
-	fit for the [switch] compiler.
-
-	* generic/tclInt.h:	Replace TclCountSpaceRuns() with
-	* generic/tclListObj.c:	TclMaxListLength() which is the function we
-	* generic/tclUtil.c:	actually want.
-	* generic/tclCompCmds.c:
-
-	* generic/tclCompCmds.c: Rewrite of parts of the switch compiler to
-	better use the powers of TclFindElement() and do less parsing on
-	its own.
-
-2011-04-28  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclInt.h:	New utility routines:
-	* generic/tclParse.c:	TclIsSpaceProc() and TclCountSpaceRuns()
-	* generic/tclUtil.c:
-
-	* generic/tclCmdMZ.c:	Use new routines to replace calls to isspace()
-	* generic/tclListObj.c:	and their /* INTL */ risk.
-	* generic/tclStrToD.c:
-	* generic/tclUtf.c:
-	* unix/tclUnixFile.c:
-
-2011-04-27  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclListObj.c:	FreeListInternalRep() cleanup.
-
-	* generic/tclBinary.c:	Backport fix for [Bug 2857044].
-	* generic/tclDictObj.c:	All freeIntRepProcs set typePtr to NULL.
-	* generic/tclEncoding.c:
-	* generic/tclIndexObj.c:
-	* generic/tclListObj.c:
-	* generic/tclNamesp.c:
-	* generic/tclObj.c:
-	* generic/tclPathObj.c:
-	* generic/tclProc.c:
-	* generic/tclRegexp.c:
-	* generic/tclStringObj.c:
-	* generic/tclVar.c:
-
-2011-04-21  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclInt.h:	Use macro to set List intreps.
-	* generic/tclListObj.c:
-
-	* generic/tclCmdIL.c:	Limits on list length were too strict.
-	* generic/tclInt.h:	Revised panics to errors where possible.
-	* generic/tclListObj.c:
-
-	* generic/tclCompile.c:	Make sure SetFooFromAny routines react
-	* generic/tclIO.c:	reasonably when passed a NULL interp.
-	* generic/tclIndexObj.c:
-	* generic/tclListObj.c:
-	* generic/tclNamesp.c:
-	* generic/tclObj.c:
-	* generic/tclProc.c:
-	* macosx/tclMacOSXFCmd.c:
-
-2011-04-21  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tcl.h:       fix for [Bug 3288345]: Wrong Tcl_StatBuf
-	* generic/tclInt.h:    used on MinGW. Make sure that all _WIN32
-	* win/tclWinFile.c:    compilers use exactly the same layout
-	* win/configure.in:    for Tcl_StatBuf - the one used by MSVC6 -
-	* win/configure:       in all situations.
-
-2011-04-20  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclFCmd.c (TclFileAttrsCmd): Added commands to reset the
-	typePtr of the Tcl_Obj* whose int-rep was just purged. Required to
-	prevent a dangling IndexRep* to reused, smashing the heap. See
-	also the entries at 2011-04-16 and 2011-03-24 for the history of
-	the problem.
-
-2011-04-19  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclConfig.c:	Reduce internals access in the implementation
-	of [<foo>::pkgconfig list].
-
-2011-04-18  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCmdIL.c:	Use ListRepPtr(.) and other cleanup.
-	* generic/tclConfig.c:
-	* generic/tclListObj.c:
-
-	* generic/tclInt.h:	Define and use macros that test whether a Tcl
-	* generic/tclBasic.c:	list value is canonical.
-	* generic/tclUtil.c:
-
-2011-04-16  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclFCmd.c (TclFileAttrsCmd): Tidied up the memory management
-	a bit to try to ensure that the dynamic and static cases don't get
-	confused while still promoting caching where possible. Added a panic
-	to trap problems in the case where an extension is misusing the API.
-
-2011-04-13  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclUtil.c:	[Bug 3285375]: Rewrite of Tcl_Concat*()
-	routines to prevent segfaults on buffer overflow.  Build them out of
-	existing primitives already coded to handle overflow properly.  Uses
-	the new TclTrim*() routines.
-
-	* generic/tclCmdMZ.c:	New internal utility routines TclTrimLeft()
-	* generic/tclInt.h:	and TclTrimRight().  Refactor the
-	* generic/tclUtil.c:	[string trim*] implementations to use them.
-
-2011-04-13  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclVar.c: [Bug 2662380]: Fix crash caused by appending to a
-	variable with a write trace that unsets it.
-
-2011-04-12  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStringObj.c:	[Bug 3285472]: Repair corruption in
-	* tests/string.test:	[string reverse] when string rep invalidation
-	failed to also reset the bytes allocated for string rep to zero.
-
-2011-04-12  Venkat Iyer <venkat@comit.com>
-
-	* library/tzdata/Atlantic/Stanley: Update to Olson tzdata2011f
-
-2011-04-06  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c (TclCompEvalObj): Earlier return if Tip280
-	gymnastics not needed.
-
-2011-04-05  Venkat Iyer <venkat@comit.com>
-
-	* library/tzdata/Africa/Casablanca: Update to Olson's tzdata2011e
-	* library/tzdata/America/Santiago:
-	* library/tzdata/Pacific/Easter:
-	* library/tzdata/America/Metlakatla: (new)
-	* library/tzdata/America/North_Dakota/Beulah: (new)
-	* library/tzdata/America/Sitka: (new)
-
-2011-04-04  Don Porter  <dgp@users.sourceforge.net>
-
-	* README:	[Bug 3202030]: Updated README files, repairing broken
-	* macosx/README:URLs and removing other bits that were clearly wrong.
-	* unix/README:	Still could use more eyeballs on the detailed build
-	* win/README:	advice on various plaforms.
-
-2011-04-02  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclStrToD.c (QuickConversion): Replaced another couple
-	of 'double' declarations with 'volatile double' to work around
-	misrounding issues in mingw-gcc 3.4.5.
-
-2011-03-24  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclFCmd.c (TclFileAttrsCmd): Ensure that any reference to
-	temporary index tables is squelched immediately rather than hanging
-	around to trip us up in the future.
-
-2011-03-21  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* unix/tclLoadDl.c:    [Bug 3216070]: Loading extension libraries
-	* unix/tclLoadDyld.c:  from embedded Tcl applications.
-	***POTENTIAL INCOMPATIBILITY***
-	For extensions which rely on symbols from other extensions being
-	present in the global symbol table. For an example and some discussion
-	of workarounds, see http://stackoverflow.com/q/8330614/301832
-
-2011-03-16  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclCkalloc.c: [Bug 3197864]: Pointer truncation on Win64
-	TCL_MEM_DEBUG builds
-
-2011-03-16  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Some rewrites to eliminate calls to isspace()
-	* generic/tclParse.c:	and their /* INTL */ risk.
-	* generic/tclProc.c:
-
-2011-03-16  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* unix/tcl.m4:    Make SHLIB_LD_LIBS='${LIBS}' the default and
-	* unix/configure: set to "" on per-platform necessary basis.
-	Backported from TEA, but kept all original platform code which was
-	removed from TEA.
-
-2011-03-14  Kevin B. Kenny  <kennykb@acm.org>
-
-	* tools/tclZIC.tcl (onDayOfMonth): Allow for leading zeroes in month
-	and day so that tzdata2011d parses correctly.
-	* library/tzdata/America/Havana:
-	* library/tzdata/America/Juneau:
-	* library/tzdata/America/Santiago:
-	* library/tzdata/Europe/Istanbul:
-	* library/tzdata/Pacific/Apia:
-	* library/tzdata/Pacific/Easter:
-	* library/tzdata/Pacific/Honolulu:  tzdata2011d
-
-
-	* unix/configure.in: [Bug 3205320]: stack space detection defeated by inlining
-	* unix/configure:    (autoconf-2.59)
-
-2011-03-09  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclNamesp.c:	[Bug 3202171]: Tighten the detector of nested
-	* tests/namespace.test:	[namespace code] quoting that the quoted
-	scripts function properly even in a namespace that contains a custom
-	"namespace" command.
-
-	* doc/tclvars.n:	Formatting fix.  Thanks to Pat Thotys.
-
-2011-03-08  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclBasic.c: Fix gcc warnings: variable set but not used
-
-2011-03-08  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclInt.h:	Remove TclMarkList() routine, an experimental
-	* generic/tclUtil.c:	dead-end from the 8.5 alpha days.
-
-	* generic/tclResult.c (ResetObjResult): [Bug 3202905]: Correct failure
-	to clear invalid intrep.  Thanks to Colin McDonald.
-
-2011-03-06  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	More replacements of Tcl_UtfBackslash() calls
-	* generic/tclCompile.c:	with TclParseBackslash() where possible.
-	* generic/tclParse.c:
-	* generic/tclUtil.c:
-
-	* generic/tclUtil.c (TclFindElement):	[Bug 3192636]: Guard escape
-	sequence scans to not overrun the string end.
-
-2011-03-05  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclParse.c (TclParseBackslash): [Bug 3200987]: Correct
-	* tests/parse.test:	trunction checks in \x and \u substitutions.
-
-2011-01-26  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/RegExp.3: [Bug 3165108]: Corrected documentation of description
-	of subexpression info in Tcl_RegExpInfo structure.
-
-2011-01-25  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclCkalloc.c:  [Bug 3129448]: Possible over-allocation on
-	* generic/tclHash.c:     64-bit platforms, part 2, backported
-	* generic/tclProc.c:     strcpy->memcpy change but not change in any
-				 struct.
-
-2011-01-19 Alexandre Ferrieux  <ferrieux@users.sourceforge.net>
-
-	* generic/tclExecute.c: [Bug 3138178]: Backport of Miguel's 2010-09-22
-	fix on 8.6 branch (decache stack info wherever ::errorInfo may be
-	updated, for trace sanity).
-
-2011-01-19  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* tools/genStubs.tcl:       Make sure to use CONST/VOID in stead of
-	* generic/tclIntDecls.h:    const/void when appropriate. This allows to
-	* generic/tclIntPlatDecls.h:use const/void in the *.decls file always,
-	* generic/tclTomMathDecls.h:genStubs will do the right thing.
-
-2011-01-18  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclBasic.c:      Various mismatches between Tcl_Panic
-	* generic/tclCompCmds.c:   format string and its arguments,
-	* generic/tclCompExpr.c:   discovered thanks to [Bug 3159920]
-	* generic/tclPreserve.c:   (Backported)
-	* generic/tclTest.c:
-
-2011-01-17  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tcl.m4:         handle --enable-64bit=ia64 for gcc. BACKPORT.
-	* win/configure:      (autoconf-2.59)
-	* win/tclWin32Dll.c:  [Patch 3059922]: fixes for mingw64 - gcc4.5.1
-	* generic/tclIOCmd.c: [Bug 3148192]: Commands "read/puts" incorrectly
-	* tests/chanio.test:  interpret parameters. Improved error-message
-	* tests/io.test       regarding legacy form.
-	* tests/ioCmd.test
-
-2011-01-15  Kevin B. Kenny  <kennykb@acm.org>
-
-	* doc/tclvars.n:
-	* generic/tclStrToD.c:
-	* generic/tclUtil.c (Tcl_PrintDouble):
-	* tests/util.test (util-16.*): [Bug 3157475]: Restored full Tcl 8.4
-	compatibility for the formatting of floating point numbers when
-	$::tcl_precision is not zero. Added compatibility tests to make sure
-	that excess trailing zeroes are suppressed for all eight major code
-	paths.
-
-2011-01-13  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c (GrowEvaluationStack): Off-by-one error in
-	sizing the new allocation - was ok in comment but wrong in the code.
-	Triggered by [Bug 3142026] which happened to require exactly one more
-	than what was in existence. BACKPORT.
-
-2011-01-03  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* tools/genStubs.tcl:  Fix "make genstubs", which was broken
-	since 2010-11-30, the TclDoubleDigits backport.
-
-2010-12-31  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclHash.c: [Bug 3007895]: Tcl_(Find|Create)HashEntry
-	stub entries can never be called. They still cannot be called
-	(no change in functionality), but at least they now do
-	exactly the same as the Tcl_(Find|Create)HashEntry macro's,
-	so the confusion addressed in this Bug report is gone.
-	(Backported from Tcl 8.6)
-
-2010-12-17  Stuart Cassoff  <stwo@users.sourceforge.net>
-
-	* unix/Makefile.in:  Remove unwanted/obsolete 'ddd' target.
-
-2010-12-17  Stuart Cassoff  <stwo@users.sourceforge.net>
-
-	* unix/Makefile.in:  [Bug 2446711]: Remove 'allpatch' target.
-
-2010-12-17  Stuart Cassoff  <stwo@users.sourceforge.net>
-
-	* unix/Makefile.in:  [Bug 2537626]: Use 'rpmbuild', not 'rpm'.
-
-2010-12-13  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* unix/tcl.m4:    Cross-compile support for Win and UNIX (backported)
-	* unix/configure: (autoconf-2.59)
-	* win/tcl.m4:
-	* win/configure.in:
-	* win/configure: (autoconf-2.59)
-
-2010-12-12  Stuart Cassoff  <stwo@users.sourceforge.net>
-
-	* unix/tcl.m4: Better building on OpenBSD.
-	* unix/configure: (autoconf-2.59)
-
-2010-12-10 Alexandre Ferrieux  <ferrieux@users.sourceforge.net>
-
-	* generic/tclIO.c: [backport] Make sure [fcopy -size ... -command ...] always
-	* tests/io.test:   calls the callback asynchronously, even for size zero.
-
-2010-12-03  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclUtil.c (TclReToGlob): Add extra check for multiple inner
-	*s that leads to poor recursive glob matching, defer to original RE
-	instead.  tclbench RE var backtrack.
-
-2010-12-01  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclStrToD.c (SetPrecisionLimits, TclDoubleDigits):
-	[Bug 3124675]: Added meaningless initialization of 'i', 'ilim' and
-	'ilim1' to silence warnings from the C compiler about possible use of
-	uninitialized variables, Added a panic to the 'switch' that assigns
-	them, to assert that the 'default' case is impossible.
-
-2010-11-30  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclInt.decls: Backport of Kevin B. Kenny's work on
-	* generic/tclInt.h: the Tcl Head, with help from Jeff Hobbs.
-	* generic/tclStrToD.c:
-	* generic/tclTest.c:
-	* generic/tclTomMath.decls:
-	* generic/tclUtil.c:
-	* tests/util.test:
-	* unix/Makefile.in:
-	* win/Makefile.in:
-	* win/makefile.vc: Rewrite of Tcl_PrintDouble and TclDoubleDigits
-	that (a) fixes a severe performance problem with floating point
-	shimmering reported by Karl Lehenbauer, (b) allows TclDoubleDigits
-	to generate the digit strings for 'e' and 'f' format, so that it
-	can be used for tcl_precision != 0 (and possibly later for [format]),
-	(c) fixes [Bug 3120139] by making TclPrintDouble inherently
-	locale-independent, (d) adds test cases to util.test for
-	correct rounding in difficult cases of TclDoubleDigits where fixed-
-	precision results are requested. (e) adds test cases to util.test for
-	the controversial aspects of [Bug 3105247]. As a side effect, two
-	more modules from libtommath (bn_mp_set_int.c and bn_mp_init_set_int.c)
-	are brought into the build, since the new code uses them.
-
-	* generic/tclIntDecls.h:
-	* generic/tclStubInit.c:
-	* generic/tclTomMathDecls.h:	Regenerated.
-
-2010-11-30  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclInt.decls, generic/tclInt.h, generic/tclIntDecls.h:
-	* generic/tclStubInit.c: TclFormatInt restored at slot 24
-	* generic/tclUtil.c (TclFormatInt): restore TclFormatInt func from
-	2005-07-05 macro-ization. Benchmarks indicate it is faster, as a
-	key int->string routine (e.g. int-indexed arrays).
-
-2010-11-23  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclVar.c (VarHashInvalidateEntry): Removed obsolete
-	  patch for AIX defining this macro as function. This is not
-	  necessary anymore. See ChangeLog entry 2010-07-28 (Bug 3037525)
-	  for the actual bug and fix the patch was a workaround for.
-
-2010-11-19  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclInterp.c:  fix gcc warning: passing argument 3 of
-	'Tcl_GetIndexFromObj' discards qualifiers from pointer target type
-	* generic/tclWinInit.c: fix gcc warning: dereferencing pointer
-	'oemId' does break strict-aliasing rules
-	* win/tclWin32Dll.c:    fix gcc warnings: unused variable 'registration'
-	* win/tclWinChan.c:
-	* win/tclWinFCmd.c:
-	* win/configure.in:	    Allow cross-compilation by default. (backported)
-	* win/tcl.m4:		    Use -pipe for gcc on win32 (backported)
-	* win/configure:        (regenerated)
-
-2010-11-18  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/file.n: [Bug 3111298]: Typofix.
-
-2010-11-16  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclPlatDecls.h: [Bug 3110161]: Extensions using TCHAR don't
-	compile on VS2005 SP1
-
-2010-11-15  Andreas Kupries  <andreask@activestate.com>
-
-	* doc/interp.n: [Bug 3081184]: TIP #378 backport.
-	* doc/tclvars.n: Performance fix for TIP #280.
-	* generic/tclBasic.c:
-	* generic/tclExecute.c:
-	* generic/tclInt.h:
-	* generic/tclInterp.c:
-	* tests/info.test:
-	* tests/interp.test:
-
-2010-11-03  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclCompCmds.c (TclCompileCatchCmd): [Bug 3098302]:
-	* tests/compile.test (compile-3.6): Reworked the compilation of the
-	[catch] command so as to avoid placing any code that might throw an
-	exception (specifically, any initial substitutions or any stores to
-	result or options variables) between the BEGIN_CATCH and END_CATCH but
-	outside the exception range.  Added a test case that panics on a stack
-	smash if the change is not made.
-
-2010-11-01  Stuart Cassoff  <stwo@users.sourceforge.net>
-
-	* library/safe.tcl:	Improved handling of non-standard module path
-	* tests/safe.test:	lists, empty path lists in particular.
-
-2010-11-01  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata/Asia/Hong_Kong:
-	* library/tzdata/Pacific/Apia:
-	* library/tzdata/Pacific/Fiji:   Olson's tzdata2010o.
-
-2010-10-23  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* tools/uniParse.tcl:   [Bug 3085863]: tclUniData 9 years old
-	* tools/uniClass.tcl:   Upgrade everything to Unicode 6.0, except
-	* tests/utf.test:       non-BMP characters > 0xFFFF
-	* generic/tclUniData.c: (re-generated)
-	* generic/regc_locale.c:(re-generated)
-	* generic/regcomp.c:    fix comment
-	* win/rules.vc          Update for VS10
-
-2010-10-09  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c: Fix overallocation of exec stack in TEBC (due
-	to mixing numwords and numbytes)
-
-2010-10-01  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclExecute.c (EvalStatsCmd): change 'evalstats' to return
-	data to interp by default, or if given an arg, use that as filename to
-	output to (accepts 'stdout' and 'stderr').  Fix output to print used
-	inst count data.
-	* generic/tclCkalloc.c: Change TclDumpMemoryInfo sig to allow objPtr
-	* generic/tclInt.decls: as well as FILE* as output.
-	* generic/tclIntDecls.h:
-
-2010-09-24  Andreas Kupries  <andreask@activestate.com>
-
-	* tclWinsock.c: [Bug 3056775]: Fixed race condition between thread and
-	internal co-thread access of a socket's structure because of the
-	thread not using the socketListLock in TcpAccept(). Added
-	documentation on how the module works to the top.
-
-2010-09-23  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCmdAH.c:   Fix cases where value returned by
-	* generic/tclEvent.c:   Tcl_GetReturnOptions() was leaked.
-	* generic/tclMain.c:    Thanks to Jeff Hobbs for discovery of the
-	anti-pattern to seek and destroy.
-
-2010-09-19  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/file.n (file readlink): [Bug 3070580]: Typofix.
-
-2010-09-10  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/regsub.n: [Bug 3063568]: Fix for gotcha in example due to Tcl's
-	special handling of backslash-newline. Makes example slightly less
-	pure, but more useful.
-
-2010-09-08  Andreas Kupries  <andreask@activestate.com>
-
-	*** 8.5.9 TAGGED FOR RELEASE ***
-
-	* doc/tm.n: Added underscore to the set of characters accepted in
-	module names. This is true for quite some time in the code, this
-	change catches up the documentation.
-
-2010-09-08  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes:	Update for 8.5.9 release.
-
-	* win/tclWin32Dll.c:	#ifdef protections to permit builds with
-	* win/tclWinChan.c:	mingw on amd64 systems. Thanks to "mescalinum"
-	* win/tclWinFCmd.c:	for reporting and testing.
-
-2010-09-06  Stuart Cassoff  <stwo@users.sourceforge.net>
-
-	* unix/configure.in, generic/tclIOUtil.c (Tcl_Stat): Updated so that
-	we do not assume that all unix systems have the POSIX blkcnt_t type,
-	since OpenBSD apparently does not. Backported from HEAD (2010-02-16).
-	* unix/configure:	autoconf-2.59
-
-2010-09-02  Andreas Kupries  <andreask@activestate.com>
-
-	* doc/glob.n: Fixed documentation ambiguity regarding the handling
-	of -join.
-
-	* library/safe.tcl (safe::AliasGlob): Fixed another problem, the
-	option -join does not stop option processing in the core builtin, so
-	the emulation must not do that either.
-
-2010-09-01  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* library/safe.tcl (safe::AliasGlob): Moved the command extending the
-	actual glob command with a -directory flag to when we actually have a
-	proper untranslated path,
-
-2010-09-01  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes:	Update for 8.5.9 release.
-
-2010-09-01  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclExecute.c: [Bug 3057639]: Applied patch by Jeff to make
-	* generic/tclVar.c:	the behaviour of lappend in bytecompiled mode
-	* tests/append.test:	consistent with direct-eval and 'append'
-	* tests/appendComp.test: generally. Added tests (append*-9.*)
-	showing the difference.
-	***POTENTIAL INCOMPATIBILITY***
-
-2010-09-01  Donal K. Fellows  <dkf@users.sf.net>
-
-	* tools/tcltk-man2html.tcl: Improve handling of cross-links for
-	options between Ttk manual pages.
-
-	* doc/Tcl.n: Avoid nroff hazards when generating documentation.
-
-2010-08-31  Andreas Kupries  <andreask@activestate.com>
-
-	* win/tcl.m4: Applied patch by Jeff fixing issues with the manifest
-	handling on Win64.
-	* win/configure: Regenerated.
-
-2010-08-29  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/dict.n: [Bug 3046999]: Corrected cross reference to array
-	manpage to refer to (correct) existing subcommand.
-
-2010-08-26  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/configure, unix/tcl.m4: SHLIB_LD_LIBS='${LIBS}' for OSF1-V*.
-	Add /usr/lib64 to set of auto-search dirs. [Bug 1230554]
-	(SC_PATH_X): Correct syntax error when xincludes not found.
-
-	* win/Makefile.in (VC_MANIFEST_EMBED_DLL VC_MANIFEST_EMBED_EXE):
-	* win/configure, win/configure.in, win/tcl.m4: SC_EMBED_MANIFEST
-	macro and --enable-embedded-manifest configure arg added to support
-	manifest embedding where we know the magic.  Help prevents DLL hell
-	with MSVC8+.
-
-2010-08-24  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes:	Update for 8.5.9 release.
-
-2010-08-23  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata/Africa/Cairo:
-	* library/tzdata/Asia/Gaza: Olson's tzdata2010l.
-
-2010-08-19  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclTrace.c (TraceExecutionObjCmd, TraceCommandObjCmd)
-	(TraceVariableObjCmd): [Patch 3048354]: Use memcpy() instead of
-	strcpy() to avoid buffer overflow; we have the correct length of data
-	to copy anyway since we've just allocated the target buffer.
-
-2010-08-15  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclProc.c (ProcWrongNumArgs): [Bug 3045010]: Make the
-	handling of passing the wrong number of arguments to [apply] somewhat
-	less verbose when a lambda term is present.
-
-2010-08-12  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCmdMZ.c (Tcl_RegexpObjCmd): [Bug 2826551, Patch 2948425]:
-	Backport of updates to make handling of RE line anchors correct.
-
-2010-08-11  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/ldAix: Remove ancient (pre-4.2) AIX support
-	* unix/configure: Regen with ac-2.59
-	* unix/configure.in, unix/tclConfig.sh.in, unix/Makefile.in:
-	* unix/tcl.m4 (AIX): Remove the need for ldAIX, replace with
-	-bexpall/-brtl.  Remove TCL_EXP_FILE (export file) and other baggage
-	that went with it.  Remove pre-4 AIX build support.
-
-2010-08-10  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclUtil.c (TclByteArrayMatch): Patterns may not be
-	null-terminated, so account for that.
-
-2010-08-05  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes:	Update for 8.5.9 release.
-
-2010-08-04  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/tclUnixFCmd.c: Adjust license header as per
-	ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
-
-	* license.terms: Fix DFARs note for number-adjusted rights clause
-
-	* win/tclWin32Dll.c (asciiProcs, unicodeProcs):
-	* win/tclWinLoad.c (TclpDlopen): 'load' use LoadLibraryEx with
-	* win/tclWinInt.h (TclWinProcs): LOAD_WITH_ALTERED_SEARCH_PATH to
-	prefer dependent DLLs in same dir as loaded DLL.
-	***POTENTIAL INCOMPATIBILITY***
-
-	* win/Makefile.in (%.${OBJEXT}): better implicit rules support
-
-2010-08-04  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tcl.h:	Bump to 8.5.9 for release.
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-	* README:
-
-	* unix/configure:	autoconf-2.59
-	* win/configure:
-
-	* changes:	Update for 8.5.9 release.
-
-2010-08-04  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIORChan.c: [Bug 3034840]: Fixed reference counting
-	* tests/ioCmd.test: in InvokeTclMethod and callers.
-
-2010-08-03  Andreas Kupries  <andreask@activestate.com>
-
-	* tests/var.test (var-19.1): [Bug 3037525]: Added test demonstrating
-	the local hashtable deletion crash and fix.
-
-	* tests/info.test (info-39.1, test_info_frame): Changed absolute to
-	relative frame adressing to handle difference between testing with
-	-singleproc 1 vs. the default -singleproc 0. Plus comment fix. The
-	test and issue are not relevant to the trunk, forward porting is not
-	required.
-
-2010-08-03  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes:	Update for 8.5.9 release.
-
-2010-08-02  Kevin B. Kenny  <kennykb@users.sf.net>
-
-	* library/tzdata/America/Bahia_Banderas:
-	* library/tzdata/Pacific/Chuuk:
-	* library/tzdata/Pacific/Pohnpei:
-	* library/tzdata/Africa/Cairo:
-	* library/tzdata/Europe/Helsinki:
-	* library/tzdata/Pacific/Ponape:
-	* library/tzdata/Pacific/Truk:
-	* library/tzdata/Pacific/Yap:			Olson's tzdata2010k.
-
-2010-07-28  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclVar.c: [Bug 3037525]: Lose fickle optimisation in
-	TclDeleteVars (used for runtime-created locals) that caused crash.
-
-2010-07-25  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclInt.h: [Bug 3030870]: Make itcl 3.x built with pre-8.6
-	* generic/tclBasic.c: work in 8.6 revert tclInt.h to what it was
-	before, and relax the relation between Tcl_CallFrame and CallFrame.
-
-2010-07-17  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tcl.h: [Bug 3030870]: Make itcl 3.x built with pre-8.6
-	* generic/tclInt.h:		work in 8.6
-
-2010-07-02  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclExecute.c (IllegalExprOperandType): [Bug 3024379]: Made
-	sure that errors caused by an argument to an operator being outside
-	the domain of the operator all result in ::errorCode being ARITH
-	DOMAIN and not NONE.
-
-2010-07-02  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclIntDecls.h: [Bug 803489]: Tcl_FindNamespace problem in
-	the Stubs table.
-
-2010-07-01  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/mathop.n: [Bug 3023165]: Fix typo that was preventing proper
-	rendering of the exclusive-or operator.
-
-2010-06-28  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclPosixStr.c: [Bug 3019634]: errno.h and tclWinPort.h have
-	conflicting definitions.
-
-2010-06-22  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCmdIL.c (Tcl_LsetObjCmd): [Bug 3019351]: Corrected wrong
-	args message.
-
-2010-06-18  Donal K. Fellows  <dkf@users.sf.net>
-
-	* library/init.tcl (auto_execok): [Bug 3017997]: Add .cmd to the
-	default list of extensions that we can execute interactively.
-
-2010-06-16  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* tools/loadICU.tcl:   [Bug 3016135]: Traceback using clock format
-	* library/msgs/he.msg: with locale of he_IL.
-
-2010-06-09  Andreas Kupries  <andreask@activestate.com>
-
-	* library/platform/platform.tcl: Added OSX Intel 64bit
-	* library/platform/pkgIndex.tcl: Package updated to version 1.0.9.
-	* unix/Makefile.in:
-	* win/Makefile.in:
-
-2010-05-26  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/socket.n: [Bug 3007442]: Server sockets never took a host
-	argument, so the list of options must precede the port argument.
-
-2010-05-25  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* unix/tclUnixPort.h: [Bug 2991415]: tclport.h #included before
-	* win/tclWinPort.h:		     limits.h
-	* generic/tclInt.h:
-
-2010-05-21  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* tools/installData.tcl:  Make sure that copyDir only receives
-	normalized paths. Backported from trunk.
-	* generic/tclPlatDecls.h: Fix <tchar.h> inclusion for CYGWIN.
-	Backported from trunk (although for trunk this was moved to
-	tclWinPort.h)
-	* generic/tclPathObj.c:   Fix Tcl_SetStringObj usage for CYGWIN. This
-	function can only be used with unshared objects. This causes a crash
-	on CYGWIN. (backported from trunk)
-	* generic/tclFileName.c:  Don't declare cygwin_conv_to_win32_path here
-	* win/tclWinChan.c:       Fix various minor other gcc warnings, like
-	* win/tclWinConsole.c:    signed<->unsigned mismatch. Backported from
-	* win/tclWinDde.c:        trunk.
-	* win/tclWinNotify.c:
-	* generic/tclStrToD.c:    [Bug 3005233]: fix for build on OpenBSD vax
-
-2010-05-19 Alexandre Ferrieux  <ferrieux@users.sourceforge.net>
-
-	* generic/tclDictObj.c: Backport of fix for [Bug 3004007], EIAS
-	* tests/dict.test:      violation in list-dict conversions.
-
-2010-05-07  Andreas Kupries  <andreask@activestate.com>
-
-	* library/platform/platform.tcl: Fix cpu name for Solaris/Intel 64bit.
-	* library/platform/pkgIndex.tcl: Package updated to version 1.0.8.
-	* unix/Makefile.in:
-	* win/Makefile.in:
-
-2010-04-30  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclBinary.c (UpdateStringOfByteArray): [Bug 2994924]: Add
-	panic when the generated string representation would grow beyond Tcl's
-	size limits.
-
-2010-04-29  Andreas Kupries  <andreask@activestate.com>
-
-	* library/platform/platform.tcl: Another stab at getting the /lib,
-	* library/platform/pkgIndex.tcl: /lib64 difference right for linux.
-	* unix/Makefile.in:		 Package updated to version 1.0.7.
-	* win/Makefile.in:
-
-2010-04-29  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata/Antarctica/Macquarie:
-	* library/tzdata/Africa/Casablanca:
-	* library/tzdata/Africa/Tunis:
-	* library/tzdata/America/Santiago:
-	* library/tzdata/America/Argentina/San_Luis:
-	* library/tzdata/Antarctica/Casey:
-	* library/tzdata/Antarctica/Davis:
-	* library/tzdata/Asia/Anadyr:
-	* library/tzdata/Asia/Damascus:
-	* library/tzdata/Asia/Dhaka:
-	* library/tzdata/Asia/Gaza:
-	* library/tzdata/Asia/Kamchatka:
-	* library/tzdata/Asia/Karachi:
-	* library/tzdata/Asia/Taipei:
-	* library/tzdata/Europe/Samara:
-	* library/tzdata/Pacific/Apia:
-	* library/tzdata/Pacific/Easter:
-	* library/tzdata/Pacific/Fiji:   Olson's tzdata2010i.
-
-2010-04-19  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/tclWinPort.h: [Patch 2986105]: Conditionally defining
-	* win/tclWinFile.c: strcasecmp/strncasecmp
-
-2010-04-18  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/unset.n: [Bug 2988940]: Fix typo.
-
-2010-04-14  Andreas Kupries  <andreask@activestate.com>
-
-	* library/platform/platform.tcl: Linux platform identification:
-	* library/platform/pkgIndex.tcl: Check /lib64 for existence of files
-	* unix/Makefile.in: matching libc* before accepting it as base
-	* win/Makefile.in:  directory. This can happen on weirdly installed
-	32bit systems which have an empty or partially filled /lib64 without
-	an actual libc. Bumped to version 1.0.6.
-
-2010-04-03  Zoran Vasiljevic <vasiljevic@users.sourceforge.net>
-
-	* generic/tclStringObj.c: (SetStringFromAny): avoid trampling
-	over the tclEmptyStringRep as it is thread-shared.
-
-	* generic/tclThreadStorage.c (ThreadStorageGetHashTable):
-	avoid accessing shared table index w/o mutex protection
-	if VALGRIND defined on compilation time. This rules out
-	helgrind complains about potential race-conditions at
-	that place.
-
-	Thanks to Gustaf Neumann for the (hard) work.
-
-2010-03-31  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/package.n: [Bug 2980210]: Document the arguments taken by
-	the [package present] command correctly.
-
-2010-03-30  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIORChan.c (ReflectClose, ReflectInput, ReflectOutput,
-	(ReflectSeekWide, ReflectWatch, ReflectBlock, ReflectSetOption,
-	(ReflectGetOption, ForwardProc): [Bug 2978773]: Preserve
-	ReflectedChannel* structures across handler invokations, to avoid
-	crashes when the handler implementation induces nested callbacks and
-	destruction of the channel deep inside such a nesting.
-
-2010-03-30  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclObj.c (Tcl_GetCommandFromObj):     [Bug 2979402]: Reorder
-	the validity tests on internal rep of a "cmdName" value to avoid
-	invalid reads reported by valgrind.
-
-2010-03-29  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStringObj.c:       Fix array overrun in test format-1.12
-	caught by valgrind testing.
-
-2010-03-25  Donal K. Fellows  <dkf@users.sf.net>
-
-	* unix/tclUnixFCmd.c (TclUnixCopyFile): [Bug 2976504]: Corrected
-	number of arguments to fstatfs() call.
-
-2010-03-24  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclResult.c:  [Bug 2383005]: Revise [return -errorcode] so
-	* tests/result.test:    that it rejects illegal non-list values.
-
-2010-03-20  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclIO.c (CopyData): Allow the total number of bytes copied
-	by [fcopy] to exceed 2GB. Can happen when no -size parameter given.
-
-2010-03-18  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclListObj.c:	[Bug 2971669]: Prevent in overflow trouble in
-	* generic/tclTestObj.c:	ListObjReplace operations. Thanks to kbk for
-	* tests/listObj.test:	fix and test.
-
-2010-03-12  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* win/makefile.vc: [Bug 2967340]: Static build was failing.
-	* win/.cvsignore:
-
-2010-03-09  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIORChan.c: [Bug 2936225]: Thanks to Alexandre Ferrieux
-	* doc/refchan.n:    <ferrieux@users.sourceforge.net> for debugging and
-	* tests/ioCmd.test: fixing the problem. It is the write-side
-	equivalent to the bug fixed 2009-08-06.
-
-2010-03-09  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/tzdata/America/Matamoros: New locale
-	* library/tzdata/America/Ojinaga: New locale
-	* library/tzdata/America/Santa_Isabel: New locale
-	* library/tzdata/America/Asuncion:
-	* library/tzdata/America/Tijuana:
-	* library/tzdata/Antarctica/Casey:
-	* library/tzdata/Antarctica/Davis:
-	* library/tzdata/Antarctica/Mawson:
-	* library/tzdata/Asia/Dhaka:
-	* library/tzdata/Pacific/Fiji:
-	Olson tzdata2010c.
-
-2010-03-01  Alexandre Ferrieux  <ferrieux@users.sourceforge.net>
-
-	* unix/tclUnixChan.c: [backported] Refrain from a possibly lengthy
-	reverse-DNS lookup on 0.0.0.0 when calling [fconfigure -sockname]
-	on an universally-bound (default) server socket.
-
-2010-02-27  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCmdMZ.c (StringFirstCmd, StringLastCmd): [Bug 2960021]:
-	Only search for the needle in the haystack when the needle isn't
-	larger than the haystack. Prevents an odd crash from sometimes
-	happening when things get mixed up (a common programming error).
-
-2010-02-21  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclBasic.c:   Fix [Bug 2954959] expr abs(0.0) is -0.0
-	* tests/expr.test:
-
-2010-02-19  Stuart Cassoff  <stwo@users.sourceforge.net>
-
-	* tcl.m4: Correct compiler/linker flags for threaded builds on
-	OpenBSD.
-	* configure: (regenerated).
-
-2010-02-19  Donal K. Fellows  <dkf@users.sf.net>
-
-	* unix/installManPage: [Bug 2954638]: Correct behaviour of manual page
-	installer. Also added armouring to check that assumptions about the
-	initial state are actually valid (e.g., look for existing input file).
-
-2010-02-11  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclIOCmd.c (Tcl_OpenObjCmd): [Bug 2949740]: Make sure that
-	we do not try to put a NULL pipeline channel into binary mode.
-
-2010-02-07  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* tools/genStubs.tcl     Backport various formatting (spacing)
-	* generic/tcl*.decls     changes from HEAD, so diffing
-	* generic/tcl*Decls.h    between 8.5.x and 8.6 shows the
-	* generic/tclStubInit.c  real structural differences again.
-	                         (any signature change not backported!)
-
-2010-02-03  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclVar.c (Tcl_ArrayObjCmd): More corrections for the 'unset'
-	subcommand.
-
-2010-02-02  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclCompile.c: [Bug 2933089]: A literal sharing problem with
-	* generic/tclCompile.h: 'info frame' affects not only 8.6 but 8.5 as
-	* generic/tclExecute.h: well. Backported the fix done in 8.6, without
-	* tests/info.test: changes. New testcase info-39.1.
-
-2010-02-02  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclVar.c (Tcl_ArrayObjCmd): [Bug 2939073]: Stop the [array
-	unset] command from having dangling pointer problems when an unset
-	trace deletes the element that is going to be processed next. Many
-	thanks to Alexandre Ferrieux for the bulk of this fix.
-
-2010-02-01  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/regexec.c (ccondissect, crevdissect): [Bug 2942697]: Rework
-	these functions so that certain pathological patterns are matched much
-	more rapidly. Many thanks to Tom Lane for dianosing this issue and
-	providing an initial patch.
-
-2010-02-01  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclInt.decls:		Various CYGWIN-related fixes
-	* generic/tclInt.h:		backported from HEAD. Still
-	* generic/tclIntPlatDecls.h:	configure script not modified,
-	* generic/tclPort.h:		so CYGWIN build is still
-	* generic/tclTest.c:		disabled. Reason: although the
-	* win/cat.c:			build succeeds with those changes,
-	* win/tclWinDde.c:		many tests still fail.
-	* win/tclWinError.c:
-	* win/tclWinFile.c:
-	* win/tclWinPipe.c:
-	* win/tclWinPort.h:
-	* win/tclWinReg.c:
-	* win/tclWinSerial.c:
-	* win/tclWinSock.c:
-	* win/tclWinTest.c:
-	* win/tclWinThrd.c:
-
-2010-01-29  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tcl.h:	Use correct TCL_LL_MODIFIER for CYGWIN.
-				Formatting (all backported from HEAD)
-	* generic/rege_dfa.c:	Fix macro conflict on CYGWIN: don't use
-				"small".
-	* generic/tclTest.c:	Fix gcc 4.4 warning: ignoring return value of
-	* unix/tclUnixPipe.c:	'write'
-	* unix/tclUnixNotify.c:
-
-2010-01-19  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/dict.n: [Bug 2929546]: Clarify just what [dict with] and [dict
-	update] are doing with variables.
-
-2010-01-18  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c (CreateScriptRecord): [Bug 2918110]: Initialize
-	the EventScriptRecord (esPtr) fully before handing it to
-	Tcl_CreateChannelHandler for registration. Otherwise a reflected
-	channel calling 'chan postevent' (== Tcl_NotifyChannel) in its
-	'watchProc' will cause the function 'TclChannelEventScriptInvoker'
-	to be run on an uninitialized structure.
-
-2010-01-18  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclStringObj.c (Tcl_AppendFormatToObj): [Bug 2932421]: Stop
-	the [format] command from causing argument objects to change their
-	internal representation when not needed. Thanks to Alexandre Ferrieux
-	for this fix.
-
-2010-01-06  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclCompExpr.c: Warning: array subscript has type 'char'
-	* generic/tclPkg.c:
-	* libtommath/bn_mp_read_radix.c:
-	* unix/tclUnixCompat.c:	Fix gcc warning: signed and unsigned type
-				in conditional expression.
-	* unix/tcl.m4: Add support for Haiku and CYGWIN dynamical loading
-	* unix/configure: (regenerated)
-	* unix/Makefile.in:
-	* unix/.cvsignore:
-	* tests/stack.test: Reduced minimum required C-stack size to 2034:
-			    CYGWIN has this stack size and the test runs fine!
-	* generic/tclEnv.c: Fix environment tests under CYGWIN
-	* generic/tclPort.h:
-	* tests/env.test:
-
-2010-01-05  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclPathObj.c (TclPathPart):   [Bug 2918610]: Correct
-	* tests/fileName.test (filename-14.31): inconsistency between the
-	string rep and the intrep of a path value created by [file rootname].
-	Thanks to Vitaly Magerya for reporting.
-
-2010-01-03  Donal K. Fellows  <dkf@users.sf.net>
-
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): [Bug 1636685]: Use the configuration
-	for modern FreeBSD suggested by the FreeBSD porter.
-
-2009-12-30  Donal K. Fellows  <dkf@users.sf.net>
-
-	* library/safe.tcl (AliasSource): [Bug 2923613]: Make the safer
-	* tests/safe.test (safe-8.9):	  [source] handle a [return] at the
-					  end of the file correctly.
-
-2009-12-29  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclInterp.c (Tcl_MakeSafe): [Bug 2895741]: Make sure that
-	the min() and max() functions are supported in safe interpreters.
-
-2009-12-28  Donal K. Fellows  <dkf@users.sf.net>
-
-	* unix/configure.in: [Bug 942170]:	Detect the st_blocks field of
-	* generic/tclCmdAH.c (StoreStatData):	'struct stat' correctly.
-	* generic/tclIOUtil.c (Tcl_Stat, Tcl_FSStat):
-	* generic/tclTest.c (PretendTclpStat):
-
-	* generic/tclInterp.c (TimeLimitCallback): [Bug 2891362]: Ensure that
-	* tests/interp.test (interp-34.13):	   the granularity ticker is
-	reset when we check limits because of the time limit event firing.
-
-2009-12-27  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/namespace.n (SCOPED SCRIPTS): [Bug 2921538]: Updated example to
-	not be quite so ancient.
-
-2009-12-23  Donal K. Fellows  <dkf@users.sf.net>
-
-	* library/safe.tcl (AliasSource, AliasExeName): [Bug 2913625]: Stop
-	information about paths from leaking through [info script] and [info
-	nameofexecutable].
-
-2009-12-16  Donal K. Fellows  <dkf@users.sf.net>
-
-	* library/safe.tcl (::safe::AliasGlob): Upgrade to correctly support a
-	larger fraction of [glob] functionality, while being stricter about
-	directory management.
-
-	* doc/tm.n: [Bug 1911342]: Formatting rewrite to avoid bogus crosslink
-	to the list manpage when generating HTML.
-
-	* library/msgcat/msgcat.tcl (Init): [Bug 2913616]: Do not use platform
-	tests that are not needed and which don't work in safe interpreters.
-
-2009-12-12  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclTest.c (TestconcatobjCmd): [Bug 2895367]: Stop memory
-	leak when testing. We don't need extra noise of this sort when
-	tracking down real problems!
-
-2009-12-10  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclObj.c (TclContinuationsEnter): [Bug 2895323]: Updated
-	comments to describe when the function can be entered for the same
-	Tcl_Obj* multiple times. This is a continuation of the 2009-11-10
-	entry where a memory leak was plugged, but where not sure if that was
-	just a band-aid to paper over some other error. It isn't, this is a
-	legal situation.
-
-2009-12-09  Andreas Kupries  <andreask@activestate.com>
-
-	* library/safe.tcl: Backport of the streamlined safe base from
-	* tests/safe.test: head to the 8.5 branch (See head changelog entries
-	2009-11-05, 2009-11-06, 2009-12-03).
-
-2009-12-07  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStrToD.c:	[Bug 2902010]: Correct conditional compile
-	directives to better detect the toolchain that needs extra work for
-	proper underflow treatment instead of merely detecting the MIPS
-	platform.
-
-2009-12-02  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* tools/genStubs.tcl: Add support for win32 CALLBACK functions (needed
-	for Tk bugfix).
-
-2009-11-30  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/Tcl.n: [Bug 2901433]: Improved description of expansion to
-	mention that it is using list syntax.
-
-2009-11-27  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/BoolObj.3, doc/CrtChannel.3, doc/DictObj.3, doc/DoubleObj.3:
-	* doc/Ensemble.3, doc/Environment.3, doc/FileSystem.3, doc/Hash.3:
-	* doc/IntObj.3, doc/Limit.3, doc/ObjectType.3, doc/PkgRequire.3:
-	* doc/SetChanErr.3, doc/SetResult.3: [Patch 2903921]: Many small
-	spelling fixes from Larry Virden.
-
-2009-11-25  Stuart Cassoff  <stwo@users.sf.net>
-
-	* unix/configure.in:	[Patch 2892871]: Remove unneeded
-	* unix/tcl.m4:		AC_STRUCT_TIMEZONE and use
-	* unix/tclConfig.h.in:	AC_CHECK_MEMBERS([struct stat.st_blksize])
-	* unix/tclUnixFCmd.c:	instead of AC_STRUCT_ST_BLKSIZE.
-	* unix/configure:	Regenerated with autoconf-2.59.
-
-2009-11-16  Alexandre Ferrieux  <ferrieux@users.sourceforge.net>
-
-	* generic/tclEncoding.c: Fix [Bug 2891556] and improve test to detect
-	* tests/decoding.test:   similar manifestations in the future.
-
-2009-11-12  Don Porter  <dgp@users.sourceforge.net>
-
-	*** 8.5.8 TAGGED FOR RELEASE ***
-
-	* changes:	Update for 8.5.8 release.
-
-	* generic/tclClock.c (TclClockInit):    Do not create [clock] support
-	commands in safe interps.
-
-	* tests/io.test:	New test io-53.11 to test for [Bug 2895565].
-
-2009-11-12  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c (CopyData): [Bug 2895565]: Dropped bogosity which
-	used the number of _written_ bytes or character to update the counters
-	for the read bytes/characters. See last entry for the test case.
-
-2009-11-11  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* tests/fCmd.test:     Fixed a number of issues for Vista and Win7
-	* tests/registry.test: that are due to restricted permissions.
-	* tests/winFCmd.test:
-
-2009-11-11  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/http/http.tcl:	[Bug 2891171]: Update the URL syntax
-	check to RFC 3986 compliance on the subject of non-encoded question
-	mark characters.
-
-	* library/http/pkgIndex.tcl:	Bump to http 2.7.5 to avoid any
-	* unix/Makefile.in:		confusion with snapshot "releases"
-	* win/Makefile.in:		that might be in ActiveTcl, etc.
-
-2009-11-11  Alexandre Ferrieux  <ferrieux@users.sourceforge.net>
-
-	* generic/tclIO.c: Fix [Bug 2888099] (close discards ENOSPC error)
-	                   by saving the errno from the first of two
-	                   FlushChannel()s. Uneasy to test; might need
-	                   specific channel drivers. Four-hands with aku.
-
-2009-11-10  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Plug another leak in TCL_EVAL_DIRECT
-	evaluation.
-
-	* generic/tclObj.c:	Plug memory leak in TclContinuationsEnter().
-	[Bug 2895323]
-
-2009-11-09  Stuart Cassoff <stwo@users.sf.net>
-
-	* win/README: [bug 2459744]: Removed outdated Msys + Mingw info.
-
-2009-11-09  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c (TclEvalObjEx):	Plug memory leak in
-	TCL_EVAL_DIRECT evaluation.
-
-	* tests/info.test:	Resolve ambiguous resolution of variable "res".
-
-2009-11-03  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tcl.h:	Bump to 8.5.8 for release.
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-	* README:
-
-	* unix/configure:	autoconf-2.59
-	* win/configure:
-
-	* changes:	Update for 8.5.8 release.
-
-2009-11-03  Andreas Kupries  <andreask@activestate.com>
-
-	* library/safe.tcl (::safe::InterpSetConfig): [Bug 2854929]: Added
-	code to recursively find deeper paths which may contain modules.
-	Required to handle modules with names like 'platform::shell', which
-	translate into 'platform/shell-X.tm', i.e arbitrarily deep
-	subdirectories.
-
-2009-11-03  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata/Asia/Novokuznetsk: New tzdata locale for Kemerovo
-	oblast', which now keeps Novosibirsk time and not Kranoyarsk time.
-	* library/tzdata/Asia/Damascus: Syrian DST changes.
-	* library/tzdata/Asia/Hong_Kong: Hong Kong historic DST corrections.
-	Olson tzdata2009q.
-
-2009-11-03  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* tests/tcltest.test: Backport permissions fix for Win7.
-
-2009-10-31  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclBasic.c (ExprRoundFunc): [Bug 2889593]: Correctly report
-	the expected number of arguments when generating an error for round().
-
-2009-10-29  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tcl.h:        Changed the typedef for the mp_digit type
-	from:
-		typedef unsigned long mp_digit;
-	to:
-		typedef unsigned int mp_digit;
-	For 32-bit builds where "long" and "int" are two names for the same
-	thing, this is no change at all.  For 64-bit builds, though, this
-	causes the dp[] array of an mp_int to be made up of 32-bit elements
-	instead of 64-bit elements.  This is a huge improvement because
-	details elsewhere in the mp_int implementation cause only 28 bits of
-	each element to be actually used storing number data.  Without this
-	change bignums are over 50% wasted space on 64-bit systems.  [Bug
-	2800740].
-
-	***POTENTIAL INCOMPATIBILITY***
-	For 64-bit builds, callers of routines with (mp_digit) or (mp_digit *)
-	arguments *will*, and callers of routines with (mp_int *) arguments
-	*may* suffer both binary and stubs incompatibilities with Tcl releases
-	8.5.0 - 8.5.7.  Such possibilities should be checked, and if such
-	incompatibilities are present, suitable [package require] requirements
-	on the Tcl release should be put in place to keep such built code
-	[load]-ing only in Tcl interps that are compatible.
-
-2009-10-29  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/clock.tcl (LocalizeFormat):
-	* tests/clock.test (clock-67.1):
-	[Bug 2819334]: Corrected a problem where '%%' followed by a letter in
-	a format group could expand recursively: %%R would turn into %%H:%M:%S
-
-2009-10-28  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclLiteral.c:	Backport fix for [Bug 2888044].
-
-2009-10-28  Kevin B. Kenny  <kennykb@acm.org>
-
-	* tests/fileName.test (fileName-20.[78]): Corrected poor test
-	hygiene (failure to save and restore the working directory) that
-	caused these two tests to fail on Windows (and [Bug 2806250] to be
-	reopened).
-
-2009-10-27  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclPathObj.c: [Bug 2884203]: Missing refcount on cached
-	normalized path caused crashes.
-
-2009-10-27  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/clock.tcl (ParseClockScanFormat): [Bug 2886852]: Corrected a
-	problem where [clock scan] didn't load the timezone soon enough when
-	processing a time format that lacked a complete date.
-	* tests/clock.test (clock-66.1):
-	Added a test case for the above bug.
-	* library/tzdata/America/Argentina/Buenos_Aires:
-	* library/tzdata/America/Argentina/Cordoba:
-	* library/tzdata/America/Argentina/San_Luis:
-	* library/tzdata/America/Argentina/Tucuman:
-	New DST rules for Argentina. (Olson's tzdata2009p.)
-
-2009-10-24  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/clock.tcl (ProcessPosixTimeZone):
-	Corrected a regression in the fix to [Bug 2207436] that caused
-	[clock] to apply EU daylight saving time rules in the US.
-	Thanks to Karl Lehenbauer for reporting this regression.
-	* tests/clock.test (clock-52.4):
-	Added a regression test for the above bug.
-	* library/tzdata/Asia/Dhaka:
-	* library/tzdata/Asia/Karachi:
-	New DST rules for Bangladesh and Pakistan. (Olson's tzdata2009o.)
-
-2009-10-23  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c (FlushChannel): Skip OutputProc for low-level
-	0-length writes. When closing pipes which have already been closed
-	not skipping leads to spurious SIG_PIPE signals. Reported by
-	Mikhail Teterin <mi+thun@aldan.algebra.com>.
-
-2009-10-21  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclPosixStr.c: [Bug 2882561]: Work around oddity on Haiku OS
-	where SIGSEGV and SIGBUS are the same value.
-
-2009-10-19  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclIO.c:      [Patch 2107634]: Revised ReadChars and
-	FilterInputBytes routines to permit reads to continue up to the string
-	limits of Tcl values.  Before revisions, large read attempts could
-	panic when as little as half the limiting value length was reached.
-	Thanks to Sean Morrison and Bob Parker for their roles in the fix.
-
-2009-10-18  Joe Mistachkin  <joe@mistachkin.com>
-
-	* tests/thread.test (thread-4.[345]): [Bug 1565466]: Correct tests to
-	save their error state before the final call to threadReap just in
-	case it triggers an "invalid thread id" error.  This error can occur
-	if one or more of the target threads has exited prior to the attempt
-	to send it an asynchronous exit command.
-
-	* doc/memory.n: [Bug 988703]: Add mechanism for finding what Tcl_Objs
-	* generic/tclCkalloc.c (MemoryCmd): are allocated when built for
-	* generic/tclInt.decls: memory debugging. This was previously
-	* generic/tclInt.h: backported from Tcl 8.6 with the corrections to
-	* generic/tclObj.c (ObjData, TclFinalizeThreadObjects): fix [Bug
-	2871908]. However, there were key elements missing. These changes make
-	things consistent between branches.
-
-2009-10-17  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclVar.c (TclDeleteCompiledLocalVars, UnsetVarStruct)
-	(TclDeleteNamespaceVars):
-	* generic/tclTrace.c (Tcl_UntraceVar2): [Bug 2629338]: Stop traces
-	that are deleted part way through (a feature used by tdom) from
-	causing freed memory to be accessed.
-
-2009-10-08  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclDictObj.c (DictIncrCmd): [Bug 2874678]: Don't leak any
-	bignums when doing [dict incr] with a value.
-	* tests/dict.test (dict-19.3): Memory leak detection code.
-
-2009-10-07  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclObj.c: [Bug 2871908]: Plug memory leaks of objThreadMap
-	and lineCLPtr hashtables.  Also make the names of the continuation
-	line information initialization and finalization functions more
-	consistent. Patch supplied by Joe Mistachkin <joe@mistachkin.com>.
-
-	* generic/tclIORChan.c (ErrnoReturn): Replace hardwired constant 11
-	with proper errno #define, EAGAIN. What was I thinking? The BSD's have
-	a different errno assignment and break with the hardwired number.
-	Reported by emiliano on the chat.
-
-2009-10-06  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclTomMathInt.h (new): Public header tclTomMath.h had
-	* generic/tclTomMath.h:	dependence on private headers, breaking use
-	* generic/tommath.h:	by extensions [Bug 1941434].
-
-2009-10-05  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes:	Update for 8.5.8 release.
-
-2009-10-04  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/tclMacOSXBundle.c:	Workaround CF memory managment bug in
-	* unix/tclUnixInit.c:		Mac OS X 10.4 & earlier. [Bug 2569449]
-
-2009-10-02  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata/Africa/Cairo:
-	* library/tzdata/Asia/Gaza:
-	* library/tzdata/Asia/Karachi:
-	* library/tzdata/Pacific/Apia:	Olson's tzdata2009n.
-
-2009-09-29  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclAlloc.c:           Cleaned up various routines in the
-	* generic/tclCkalloc.c:         call stacks for memory allocation to
-	* generic/tclInt.h:             guarantee that any size values computed
-	* generic/tclThreadAlloc.c:     are within the domains of the routines
-	they get passed to.  [Bugs 2557696 and 2557796].
-
-2009-09-11  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/http/http.tcl:	Bump to http 2.7.4 to account for
-	* library/http/pkgIndex.tcl:	[Bug 2849860] fix.
-	* unix/Makefile.in:
-	* win/Makefile.in:
-
-2009-09-10  Donal K. Fellows  <dkf@users.sf.net>
-
-	* library/http/http.tcl (http::Event): [Bug 2849860]: Handle charset
-	names in double quotes; some servers like generating them like that.
-
-2009-09-01  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl:  Bump to tcltest 2.3.2 after revision
-	* library/tcltest/pkgIndex.tcl: to verbose error message.
-	* unix/Makefile.in:
-	* win/Makefile.in:
-
-2009-08-27  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStringObj.c:       [Bug 2845535]: A few more string
-	overflow cases in [format].
-
-2009-08-25  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclBasic.c (Tcl_CreateInterp, Tcl_EvalTokensStandard)
-	(EvalTokensStandard, Tcl_EvalEx, EvalEx, TclAdvanceContinuations)
-	(TclEvalObjEx):
-	* generic/tclCmdMZ.c (Tcl_SwitchObjCmd, TclListLines):
-	* generic/tclCompCmds.c (*):
-	* generic/tclCompile.c (TclSetByteCodeFromAny, TclInitCompileEnv)
-	(TclFreeCompileEnv, TclCompileScript):
-	* generic/tclCompile.h (CompileEnv):
-	* generic/tclInt.h (ContLineLoc, Interp):
-	* generic/tclObj.c (ThreadSpecificData, ContLineLocFree)
-	(TclThreadFinalizeObjects, TclInitObjSubsystem, TclContinuationsEnter)
-	(TclContinuationsEnterDerived, TclContinuationsCopy)
-	(TclContinuationsGet, TclFreeObj):
-	* generic/tclParse.c (TclSubstTokens, Tcl_SubstObj):
-	* generic/tclProc.c (TclCreateProc):
-	* generic/tclVar.c (TclPtrSetVar):
-	* tests/info.test (info-30.0-24):
-
-	Extended parser, compiler, and execution with code and attendant data
-	structures tracking the positions of continuation lines which are not
-	visible in script Tcl_Obj*'s, to properly account for them while
-	counting lines for #280.
-
-2009-08-24  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/tclMacOSXNotify.c: Fix multiple issues with nested event loops
-	when CoreFoundation notifier is running in embedded mode. (Fixes
-	problems in TkAqua Cocoa reported by Youness Alaoui on tcl-mac)
-
-2009-08-21  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclFileName.c: Correct regression in [Bug 2837800] fix.
-	* tests/fileName.test:
-
-2009-08-20  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclFileName.c: [Bug 2837800]: Correct the result produced by
-	[glob */test] when * matches something like ~foo.
-
-	* generic/tclPathObj.c: [Bug 2806250]: Prevent the storage of strings
-	starting with ~ in the "tail" part (normPathPtr field) of the path
-	intrep when PATHFLAGS != 0.  This establishes the assumptions relied
-	on elsewhere that the name stored there is a relative path.  Also
-	refactored to make an AppendPath() routine instead of the cut/paste
-	stanzas that were littered throughout.
-
-2009-08-20  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCmdIL.c (Tcl_LsortObjCmd): Plug memory leak.
-
-2009-08-18  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclPathObj.c: [Bug 2837800]: Added NULL check to prevent
-	* tests/fileName.test:  crashes during [glob].
-
-2009-08-06  Andreas Kupries  <andreask@activestate.com>
-
-	* doc/refchan.n [Bug 2827000]: Extended the implementation of
-	* generic/tclIORChan.c: reflective channels (TIP 219, method
-	* tests/ioCmd.test: 'read'), enabling handlers to signal EAGAIN to
-	indicate 'no data, but not at EOF either', and other system
-	errors. Updated documentation, extended testsuite (New test cases
-	iocmd*-23.{9,10}).
-
-2009-08-02  Donal K. Fellows  <dkf@users.sf.net>
-
-	* unix/tclUnixFCmd.c (GetOwnerAttribute, SetOwnerAttribute)
-	(GetGroupAttribute, SetGroupAttribute): [Bug 1942222]: Stop calling
-	* unix/tclUnixFile.c (TclpGetUserHome): endpwent() and endgrent();
-	they've been unnecessary for ages.
-
-2009-07-31  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStringObj.c: [Bug 2830354]:	Corrected failure to
-	* tests/format.test:		grow buffer when format spec request
-	large width floating point values.  Thanks to Clemens Misch.
-
-2009-07-24  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c (Tcl_GetChannelHandle): [Bug 2826248]: Do not crash
-	* generic/tclPipe.c (FileForRedirect): for getHandleProc == NULL, this
-	is allowed. Provide a nice error message in the bypass area. Updated
-	caller to check the bypass for a mesage. Bug reported by Andy
-	Sonnenburg <andy22286@users.sourceforge.net>. Backported from CVS
-	head.
-
-2009-07-23  Joe Mistachkin  <joe@mistachkin.com>
-
-	* generic/tclNotify.c: [Bug 2820349]: Ensure that queued events are
-	freed once processed.
-
-2009-07-21  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata/Asia/Dhaka:
-	* library/tzdata/Indian/Mauritius: Olson's tzdata2009k.
-
-2009-07-20  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCmdMZ.c (StringIsCmd): Reorganize so that [string is] is
-	more efficient when parsing things that are correct, at a cost of
-	making the empty string test slightly more costly. With this, the cost
-	of doing [string is integer -strict $x] matches [catch {expr {$x+0}}]
-	in the successful case, and greatly outstrips it in the failing case.
-
-2009-07-16  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCmdIL.c:	Removed unused variables.
-	* generic/tclCompile.c:
-	* generic/tclVar.c:
-	* unix/tclUnixChan.c:
-
-	* generic/tclScan.c:	Typo in ACCEPT_NAN configuration.
-
-	* generic/tclStrToD.c:	[Bug 2819200]: Set floating point control
-	register on MIPS systems so that the gradual underflow expected by Tcl
-	is in effect.
-
-2009-07-14  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclBasic.c (DeleteInterpProc,TclArgumentBCEnter,
-	(TclArgumentBCRelease, TclArgumentGet):
-	* generic/tclCompile.c (EnterCmdWordIndex, TclCleanupByteCode,
-	(TclInitCompileEnv, TclCompileScript):
-	* generic/tclCompile.h (ExtCmdLoc):
-	* generic/tclExecute.c (TclExecuteByteCode):
-	* generic/tclInt.h (ExtIndex, CFWordBC):
-	* tests/info.test (info-39.0):
-
-	Backport of some changes made to the Tcl head, to handle literal
-	sharing better. The code here is much simpler (trimmed down) compared
-	to the head as the 8.5 branch is not bytecode compiling whole files,
-	and doesn't compile eval'd code either.
-
-	Reworked the handling of literal command arguments in bytecode to be
-	saved (compiler) and used (execution) per command (See the
-	TCL_INVOKE_STK* instructions), and not per the whole bytecode. This,
-	and the previous change remove the problems with location data caused
-	by literal sharing (across whole files, but also proc bodies).
-	Simplified the associated datastructures (ExtIndex is gone, as is the
-	function EnterCmdWordIndex).
-
-2009-07-01  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* win/tclWinInt.h:   [Bug 2806622]: Handle the GetUserName API call
-	* win/tclWin32Dll.c: via the tclWinProcs indirection structure. This
-	* win/tclWinInit.c:  fixes a problem obtaining the username when the
-	USERNAME environment variable is unset.
-
-2009-06-15  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStringObj.c: sprintf() -> Tcl_ObjPrintf() conversion.
-
-2009-06-13  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCompile.c: [Bug 2802881]: The value stashed in
-	* generic/tclProc.c:    iPtr->compiledProcPtr when compiling a proc
-	* tests/execute.test:   survives too long. We only need it there long
-	enough for the right TclInitCompileEnv() call to re-stash it into
-	envPtr->procPtr.  Once that is done, the CompileEnv controls.  If we
-	let the value of iPtr->compiledProcPtr linger, though, then any other
-	bytecode compile operation that takes place will also have its
-	CompileEnv initialized with it, and that's not correct.  The value is
-	meant to control the compile of the proc body only, not other compile
-	tasks that happen along.  Thanks to Carlos Tasada for discovering and
-	reporting the problem.
-
-2009-06-10  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStringObj.c:       [Bug 2801413]: Revised [format] to not
-	overflow the integer calculations computing the length of the %ll
-	formats of really big integers.  Also added protections so that
-	[format]s that would produce results overflowing the maximum string
-	length of Tcl values throw a normal Tcl error instead of a panic.
-
-2006-06-09  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclGetDate.y: Fixed a thread safety bug in the generated
-	* library/clock.tcl:    Bison parser (needed a %pure-parser
-	* tests/clock.test:     declaration to avoid static variables).
-				Discovered that the %pure-parser declaration
-	                        allowed for returning the Bison error message
-	                        to the Tcl caller in the event of a syntax
-	                        error, so did so.
-	* generic/tclDate.c: bison 2.3
-
-2006-06-08  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata/Asia/Dhaka: New DST rule for Bangladesh. (Olson's
-	tzdata2009i.)
-
-2009-06-02  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c: Replace dynamically-initialized table with a
-	table of static constants in the lookup table for exponent operator
-	computations that fit in a 64 bit integer result.
-
-	* generic/tclExecute.c: [Bug 2798543]: Corrected implementations and
-	selection logic of the INST_EXPON instruction.
-
-2009-06-01  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/expr.test:      [Bug 2798543]: Added many tests demonstrating
-	the broken cases.
-
-2009-05-30  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata/Africa/Cairo:
-	* library/tzdata/Asia/Amman: Olson's tzdata2009h.
-
-2009-05-29  Andreas Kupries  <andreask@activestate.com>
-
-	* library/platform/platform.tcl: Fixed handling of cpu ia64,
-	* library/platform/pkgIndex.tcl: taking ia64_32 into account
-	* unix/Makefile.in: now. Bumped version to 1.0.5. Updated the
-	* win/Makefile.in: installation commands.
-
-2009-05-07  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclObj.c (Tcl_GetCommandFromObj): [Bug 2785893]: Ensure that
-	a command in a deleted namespace can't be found through a cached name.
-
-2009-05-06  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c:	[Bug 2582327]: Improve overflow error message
-	from [string repeat].
-
-2009-04-28  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/tcl.m4, unix/configure (SC_CONFIG_CFLAGS): harden the check
-	to add _r to CC on AIX with threads.
-
-2009-04-27  Alexandre Ferrieux  <ferrieux@users.sourceforge.net>
-
-	* generic/tclInt.h:   Backport fix for [Bug 1028264]: WSACleanup() too early.
-	* generic/tclEvent.c: The fix introduces "late exit handlers"
-	* win/tclWinSock.c:   for similar late process-wide cleanups.
-
-2009-04-27  Alexandre Ferrieux  <ferrieux@users.sourceforge.net>
-
-	* win/tclWinSock.c: Backport fix for [Bug 2446662]: resync Win
-	behavior on RST with that of unix (EOF).
-
-2009-04-27  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/concat.n (EXAMPLES): [Bug 2780680]: Rewrote so that the spacing
-	of result messages is correct. (The exact way they were wrong was
-	different when rendered through groff or as HTML, but it was still
-	wrong both ways.)
-
-2009-04-24  Stuart Cassoff <stwo@users.sf.net>
-
-	* unix/Makefile.in: [Patch 2769530]: Don't chmod/exec installManPage.
-
-2009-04-15  Don Porter  <dgp@users.sourceforge.net>
-
-	*** 8.5.7 TAGGED FOR RELEASE ***
-
-	* generic/tclStringObj.c:	AppendUnicodeToUnicodeRep failed
-	to set stringPtr->allocated to 0, leading to crashes.
-
-	* changes:	Update for 8.5.7 release.
-
-2009-04-14  Stuart Cassoff  <stwo@users.sourceforge.net>
-
-	* unix/tcl.m4:	Removed -Wno-implicit-int from CFLAGS_WARNING.
-
-2008-04-14  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata/Asia/Karachi: Updated rules for Pakistan Summer
-				       Time (Olson's tzdata2009f)
-
-2009-04-10  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes:	Update for 8.5.7 release.
-
-	* generic/tcl.h:	Bump to 8.5.7 for release.
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-	* README:
-
-	* unix/configure:	autoconf-2.59
-	* win/configure:
-
-	* generic/tclStringObj.c (UpdateStringOfString):  Fix bug detected
-	by compiler warning about undefined "dst".
-
-	* tests/httpd:		Backport new tests for http 2.7.3.
-	* tests/http.tcl:
-
-2009-04-10  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tclUnixChan.c:		TclUnixWaitForFile(): use FD_* macros
-	* macosx/tclMacOSXNotify.c:	to manipulate select masks (Cassoff).
-					[Freq 1960647] [Bug 3486554]
-
-	* unix/tclLoadDyld.c:		use RTLD_GLOBAL instead of RTLD_LOCAL.
-					[Bug 1961211]
-
-	* macosx/tclMacOSXNotify.c:	revise CoreFoundation notifier to allow
-					embedding into applications that
-					already have a CFRunLoop running and
-					want to run the tcl event loop via
-					Tcl_ServiceModeHook(TCL_SERVICE_ALL).
-
-	* macosx/tclMacOSXNotify.c:	add CFRunLoop based Tcl_Sleep() and
-	* unix/tclUnixChan.c:		TclUnixWaitForFile() implementations
-	* unix/tclUnixEvent.c:		and disable select() based ones in
-					CoreFoundation builds.
-
-	* unix/tclUnixNotify.c:		simplify, sync with tclMacOSXNotify.c.
-
-	* generic/tclInt.decls: 	add TclMacOSXNotifierAddRunLoopMode()
-	* generic/tclIntPlatDecls.h:	internal API, regen.
-	* generic/tclStubInit.c:
-
-	* unix/configure.in (Darwin):	use Darwin SUSv3 extensions if
-					available; remove /Network locations
-					from default tcl package search path
-					(NFS mounted locations and thus slow).
-	* unix/configure:		autoconf-2.59
-	* unix/tclConfig.h.in:		autoheader-2.59
-
-	* macosx/tclMacOSXBundle.c:	on Mac OS X 10.4 and later, replace
-					deprecated NSModule API by dlfcn API.
-
-2009-04-09  Kevin B. Kenny  <kennykb@acm.org>
-
-	* tools/tclZIC.tcl: Always emit files with Unix line termination.
-	* library/tzdata: Olson's tzdata2009e
-
-2009-04-09  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/http/http.tcl:	Backport http 2.7.3 from HEAD for
-	* library/http/pkgIndex.tcl:	bundling with the Tcl 8.5.7 release.
-	* unix/Makefile.in:
-	* win/Makefile.in:
-
-2009-04-08  Andreas Kupries  <andreask@activestate.com>
-
-	* library/platform/platform.tcl: Extended the darwin sections to add
-	* library/platform/pkgIndex.tcl: a kernel version number to the
-	* unix/Makefile.in: identifier for anything from Leopard (10.5) on up.
-	* win/Makefile.in: Extended patterns for same. Extended cpu
-	* doc/platform.n: recognition for 64bit Tcl running on a 32bit kernel
-	on a 64bit processor (By Daniel Steffen). Bumped version to 1.0.4.
-	Updated Makefiles.
-
-2009-04-08  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl:  [Bug 2570363]: Converted [eval]s (some
-	* library/tcltest/pkgIndex.tcl: unsafe!) to {*} in tcltest package.
-	* unix/Makefile.in:     => tcltest 2.3.1
-	* win/Makefile.in:
-
-2009-04-07  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStringObj.c:	Completed backports of fixes for
-	[Bug 2494093] and [Bug 2553906].
-
-2009-03-30  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/Alloc.3: [Bug 2556263]:	Size argument is "unsigned int".
-
-	* generic/tclStringObj.c:       Added protections from invalid memory
-	* generic/tclTestObj.c:         accesses when we append (some part of)
-	* tests/stringObj.test:         a Tcl_Obj to itself.  Added the
-	appendself and appendself2 subcommands to the [teststringobj] testing
-	command and added tests to the test suite.  [Bug 2603158]
-
-2009-03-27  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclPathObj.c (TclPathPart): [Bug 2710920]: TclPathPart()
-	* tests/fileName.test:	was computing the wrong results for both [file
-	dirname] and [file tail] on "path" arguments with the PATHFLAGS != 0
-	intrep and with an empty string for the "joined-on" part.
-
-2009-03-20  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/stringObj.test:         [Bug 2597185]: Test stringObj-6.9
-	checks that Tcl_AppendStringsToObj() no longer crashes when operating
-	on a pure unicode value.
-
-	* generic/tclExecute.c (INST_CONCAT1):  [Bug 2669109]: Panic when
-	appends overflow the max length of a Tcl value.
-
-2009-03-18  Don Porter  <dgp@users.sourceforge.net>
-
-	* win/tclWinFile.c (TclpObjNormalizePath):	[Bug 2688184]:
-	Corrected Tcl_Obj leak. Thanks to Joe Mistachkin for detection and
-	patch.
-
-2009-03-15  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclPosixStr.c (Tcl_SignalId,Tcl_SignalMsg): [Patch 1513655]:
-	Added support for SIGINFO, which is present on BSD platforms.
-
-2009-02-20  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclPathObj.c:	[Bug 2571597]: Fixed mistaken logic in
-	* tests/fileName.test:	TclFSGetPathType() that assumed (not
-	"absolute") => "relative". This is a false assumption on Windows,
-	where "volumerelative" is another possibility.
-
-2009-02-17  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/tcl.m4, win/configure: Check if cl groks _WIN64 already to
-	avoid CC manipulation that can screw up later configure checks.
-	Use 'd'ebug runtime in 64-bit builds.
-
-2009-02-05  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStringObj.c: [Bug 2561794]: Added overflow protections to
-	the AppendUtfToUtfRep routine to either avoid invalid arguments and
-	crashes, or to replace them with controlled panics.
-
-2009-02-04  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStringObj.c (SetUnicodeObj):	[Bug 2561488]:
-	Corrected failure of Tcl_SetUnicodeObj() to panic on a shared object.
-	Also factored out common code to reduce duplication.
-
-	* generic/tclCmdMZ.c:   Prevent crashes due to int overflow of the
-	length of the result of [string repeat].  [Bug 2561746]
-
-2009-01-29  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclNamesp.c (Tcl_FindCommand): [Bug 2519474]: Ensure that
-	the path is not searched when the TCL_NAMESPACE_ONLY flag is given.
-
-2009-01-22  Kevin B. Kenny  <kennykb@acm.org>
-
-	* unix/tcl.m4: Corrected a typo ($(SHLIB_VERSION) should be
-	${SHLIB_VERSION}).
-	* unix/configure: Autoconf 2.59
-
-2009-01-21  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIORChan.c (ReflectClose): Fix for [Bug 2458202].
-	Closing a channel may supply NULL for the 'interp'. Test for
-	finalization needs to be different, and one place has to pull the
-	interp out of the channel instead.
-
-2009-01-19  Kevin B. Kenny  <kennykb@acm.org>
-
-	* unix/Makefile.in: [Patch 907924]:Added a CONFIG_INSTALL_DIR
-	* unix/tcl.m4:      parameter so that distributors can control where
-	tclConfig.sh goes. Made the installation of 'ldAix' conditional upon
-	actually being on an AIX system. Allowed for downstream packagers to
-	customize SHLIB_VERSION on BSD-derived systems. Thanks to Stuart
-	Cassoff for his help.
-	* unix/configure: Autoconf 2.59
-
-2009-01-09  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStringObj.c (STRING_SIZE): [Bug 2494093]: Corrected
-	failure to limit memory allocation requests to the sizes that can be
-	supported by Tcl's memory allocation routines.
-
-2009-01-08  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStringObj.c (STRING_UALLOC): [Bug 2494093]: Added missing
-	parens required to get correct results out of things like
-	STRING_UALLOC(num + append).
-
-2009-01-06  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclDictObj.c (DictIncrCmd): Corrected twiddling in internals
-	of dictionaries so that literals can't get destroyed.
-
-	* tests/expr.test, tests/string.test: Eliminate non-ASCII characters.
-	[Bugs 2006884, 2006879]
-
-2009-01-03  Kevin B. Kenny  <kennykb@acm.org>:
-
-	* library/clock.tcl (tcl::clock::add): Fixed error message formatting
-	in the case where [clock add] is presented with a bad switch.
-	* tests/clock.test (clock-65.1) Added a test case for the above
-	problem [Bug 2481670].
-
-	******************************************************************
-	*** CHANGELOG ENTRIES FOR 2008 IN "ChangeLog.2008"             ***
-	*** CHANGELOG ENTRIES FOR 2006-2007 IN "ChangeLog.2007"        ***
-	*** CHANGELOG ENTRIES FOR 2005 IN "ChangeLog.2005"             ***
-	*** CHANGELOG ENTRIES FOR 2004 IN "ChangeLog.2004"             ***
-	*** CHANGELOG ENTRIES FOR 2003 IN "ChangeLog.2003"             ***
-	*** CHANGELOG ENTRIES FOR 2002 IN "ChangeLog.2002"             ***
-	*** CHANGELOG ENTRIES FOR 2001 IN "ChangeLog.2001"             ***
-	*** CHANGELOG ENTRIES FOR 2000 IN "ChangeLog.2000"             ***
-	*** CHANGELOG ENTRIES FOR 1999 AND EARLIER IN "ChangeLog.1999" ***
-	******************************************************************
diff --git a/ChangeLog.1999 b/ChangeLog.1999
deleted file mode 100644
index 3bf4e9a..0000000
--- a/ChangeLog.1999
+++ /dev/null
@@ -1,2634 +0,0 @@
-1999-12-22  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* changes: updated changes file
-	* tools/tclSplash.bmp: updated to show 8.3
-
-1999-12-21  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* README:
-	* generic/tcl.h:
-	* mac/README:
-	* unix/configure.in:
-	* tools/tcl.wse.in:
-	* win/README.binary:
-	* win/configure.in: updated to patch level 8.3b1
-
-	* unix/Makefile.in: added -srcdir=... for 'make html'
-
-	* doc/Hash.3: fixed reference to ckfree [Bug 3912]
-	* doc/RegExp.3: fixed calling params for Tcl_RegExecFromObj
-	* doc/open.n: fixed minor formatting errors
-	* doc/string.n: fixed minor formatting errors
-
-	* doc/lsort.n: added -unique docs
-	* tests/cmdIL.test:
-	* generic/tclCmdIL.c: added -unique option to lsort
-
-	* generic/tclThreadTest.c: changed thread ids to longs [Bug 3902]
-
-	* mac/tclMacOSA.c: fixed applescript for I18N [Bug 3644]
-
-	* win/mkd.bat:
-	* win/rmd.bat: removed necessity of tag.txt [Bug 3874]
-
-	* win/tclWinThrd.c: changed CreateThread to _beginthreadex and
-	ExitThread to _endthreadex
-
-1999-12-12  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* doc/glob.n:
-	* tests/fileName.test:
-	* generic/tclInt.decls:
-	* generic/tclInt.h:
-	* generic/tclIntDecls.h:
-	* generic/tclStubInit.c:
-	* generic/tclEncoding.c:
-	* generic/tclFileName.c:
-	* mac/tclMacFile.c:
-	* unix/tclUnixFile.c:
-	* win/tclWinFile.c: enhanced the glob command with the new options
-	-types -path -directory and -join. Deprecated TclpMatchFiles with
-	TclpMatchFilesTypes, extended TclGlob and TclDoGlob and added
-	GlobTypeData structure. [Bug 2363]
-
-1999-12-10  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* tests/var.test:
-	* generic/tclCompile.c: fixed problem where setting to {} array would
-	intermittently not work. [Bug 3339] (Fontaine)
-
-	* generic/tclCmdMZ.c:
-	* generic/tclExecute.c: optimized INST_TRY_CVT_TO_NUMERIC to recognize
-	boolean objects. [Bug 2815] (Spjuth)
-
-	* tests/info.test:
-	* tests/parseOld.test:
-	* generic/tclCmdAH.c:
-	* generic/tclProc.c: changed Tcl_UplevelObjCmd (uplevel) and
-	Tcl_EvalObjCmd (eval) to use TCL_EVAL_DIRECT in the single arg case as
-	well, to take advantage of potential pure list input optimization.
-	This means that it won't get byte compiled though, which should be
-	acceptable.
-	* generic/tclBasic.c: made Tcl_EvalObjEx pure list object aware in the
-	TCL_EVAL_DIRECT case for efficiency.
-	* generic/tclUtil.c: made Tcl_ConcatObj pure list object aware, and
-	return a list object in that case [Bug 2098 2257]
-
-	* generic/tclMain.c: changed Tcl_Main to not constantly reuse the
-	commandPtr object (interactive case) as it could be shared. (Fellows)
-
-	* unix/configure.in:
-	* unix/tcl.m4:
-	* unix/tclUnixPipe.c: removed checking for compatible vfork function
-	and use of the vfork function. Modern VM systems rarely suffer any
-	performance degradation when fork is used, and it solves multiple
-	problems with vfork. Users that still want vfork can add -Dfork=vfork
-	to the compile flags. [Bug 942 2228 1312]
-
-1999-12-09  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* win/aclocal.m4: made it just include tcl.m4
-
-	* doc/exec.n:
-	* doc/open.n:
-	* win/tclWin32Dll.c:
-	* win/tclWinChan.c:
-	* win/tclWinFCmd.c:
-	* win/tclWinInit.c:
-	* win/tclWinPipe.c:
-	* win/tclWinSock.c: removed all code that supported Win32s. It was no
-	longer officially supported, and likely didn't work anyway.
-	* win/makefile.vc: removed 16 bit stuff, cleaned up.
-
-	* win/tcl16.rc:
-	* win/tclWin16.c:
-	* win/winDumpExts.c: these files have been removed from the source
-	tree (no longer necessary to build)
-
-1999-12-07  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* tests/io.test: removed 'knownBug' tests that were for unsupported0,
-	which is now fcopy (that already has tests)
-
-	* mac/tclMacPort.h: added utime.h include
-
-	* generic/tclDate.c:
-	* unix/Makefile.in: fixed make gendate to swap const with CONST so it
-	uses the Tcl defined CONST type [Bug 3521]
-
-	* generic/tclIO.c: removed panic that could occur in FlushChannel when
-	a "blocking" channel would receive EAGAIN, instead treating it the
-	same as non-blocking. [Bug 3773]
-
-	* generic/tclUtil.c: fixed Tcl_ScanCountedElement to not step beyond
-	the end of the counted string. [Bug 3336]
-
-1999-12-03  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* doc/load.n: added note about NT's buggy handling of './' with
-	LoadLibrary
-
-	* library/http2.1/http.tcl: fixed error handling in http::Event. [Bug
-	3752]
-
-	* tests/env.test: removed knownBug limitation from working test
-	* tests/all.tcl: ensured that ::tcltest::testsDirectory would be set
-	to an absolute path
-
-	* tests/expr-old.test:
-	* tests/parseExpr.test:
-	* tests/string.test:
-	* generic/tclGet.c:
-	* generic/tclInt.h:
-	* generic/tclObj.c:
-	* generic/tclParseExpr.c:
-	* generic/tclUtil.c:
-	* generic/tclExecute.c: added TclCheckBadOctal routine to enhance
-	error message checking for when users use invalid octal numbers (like
-	08), as well as replumbed the Expr*Funcs with a new VerifyExprObjType
-	to simplify type handling. [Bug 2467]
-
-	* tests/expr.test:
-	* generic/tclCompile.c: fixed 'bad code length' error for 'expr +
-	{[incr]}' case, with new test case [Bug 3736] and seg fault on 'expr
-	+ {[error]}' (different cause) that was caused by a correct
-	optimization that didn't correctly track how it was modifying the
-	source string in the opt. The optimization was removed, which means
-	that:
-		expr 1 + {[string length abc]}
-	will be not be compiled inline as before, but this should be written:
-		expr {1 + [string length abc]}
-	which will be compiled inline for speed. This prevents:
-		expr 1 + {[mindless error]}
-	from seg faulting, and only affects optimizations for degenerate cases
-	[Bug 3737]
-
-1999-12-01  Scott Redman <redman@scriptics.com>
-
-	* generic/tcl.decls:
-	* generic/tclMain.c:
-	* unix/tclAppInit.c:
-	* win/tclAppInit.c: Added two new internal functions,
-	TclSetStartupScriptFileName() and TclGetStartupScriptFileName() and
-	added hooks into the main() code for supporting TclPro and other "big"
-	shells more easily without requiring a copy of the main() code.
-
-	* generic/tclEncoding.c:
-	* generic/tclEvent.c: Moved encoding-related startup code from
-	tclEvent.c into the more appropriate tclEncoding.c.
-
-1999-11-30  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclIO.c: fix from Kupries for	Tcl_UnstackChannel that
-	correctly handles resetting translation and encoding.
-
-	* generic/tclLoad.c: #def'd out the unloading of DLLs at finalize time
-	for Unix in TclFinalizeLoad. [Bug 2560 3373] Should be parametrized
-	to allow for user to specify unload or not.
-
-	* win/tclWinTime.c: fixed handling of %Z on NT for time zones that
-	don't have DST.
-
-1999-11-29  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* library/dde1.1/pkgIndex.tcl:
-	* library/reg1.0/pkgIndex.tcl: added supported for debugged versions
-	of the libraries
-
-	* unix/tclUnixPipe.c: fixed PipeBlockModeProc to properly set
-	isNonBlocking flag on pipe. [Bug 1356 710]
-	removed spurious fcntl call from PipeBlockModeProc
-
-	* tests/scan.test:
-	* generic/tclScan.c: fixed scan where %[..] didn't match anything and
-	added test case. [Bug 3700]
-
-1999-11-24  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* doc/open.n:
-	* win/tclWinSerial.c: adopted patch from Schroedter to handle
-	fconfigure $sock -lasterror on Windows. [RFE 3368]
-
-	* generic/tclCmdIL.c: made SORTMODE_INTEGER work with Longs [Bug 3652]
-
-1999-11-23  Scott Stanton  <stanton@scriptics.com>
-
-	* library/tcltest1.0/tcltest.tcl: Fixed bug where tcltest output went
-	to stdout instead of the specified output file in some cases.
-
-1999-11-19  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclProc.c: backed out change from 1999-11-18 as it could
-	affect return string from upvar as well.
-
-	* tools/tcl.wse.in: added tcltest1.0 library to distribution list
-
-	* doc/http.n:
-	* library/http2.1/http.tcl:
-	* library/http2.1/pkgIndex.tcl: updated http package to 2.2
-
-1999-11-18  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* unix/tcl.m4: added defined for _THREAD_SAFE in --enable-threads
-	case; added check for pthread_mutex_init in libc; in AIX case, with
-	--enable-threads ${CC}_r is used; fixed flags when using gcc on SCO
-
-	* generic/tclProc.c: corrected error reporting for default case at the
-	global level for uplevel command.
-
-	* generic/tclIOSock.c: changed int to size_t type for len in
-	TclSockMinimumBuffers.
-
-	* generic/tclCkalloc.c: fixed Tcl_DbCkfree to return a value on NULL
-	input. [Bug 3400]
-
-	* generic/tclStringObj.c: fixed support for passing in negative length
-	to Tcl_SetUnicodeObj, et al handling routines. [Bug 3380]
-
-	* doc/scan.n:
-	* tests/scan.test:
-	* generic/tclScan.c: finished support for inline scan by supporting
-	XPG identifiers.
-
-	* doc/http.n:
-	* library/http2.1/http.tcl: added register and unregister commands to
-	http:: package (better support for tls/SSL), as well as -type argument
-	to http::geturl. [RFE 2617]
-
-	* generic/tclBasic.c: removed extra decr of numLevels in Tcl_EvalObjEx
-	that could cause seg fault. (mjansen@wendt.de)
-
-	* generic/tclEvent.c: fixed possible lack of MutexUnlock in
-	Tcl_DeleteExitHandler. [Bug 3545]
-
-	* unix/tcl.m4: Added better pthreads library check and inclusion of
-	_THREAD_SAFE in --enable-threads case
-	Added support for gcc config on SCO
-
-	* doc/glob.n: added note about ..../ glob behavior on Win9*
-	* doc/tcltest.n: fixed minor example errors. [Bug 3551]
-
-1999-11-17 Brent Welch <welch@scriptics.com>
-
-	* library/http2.1/http.tcl: Correctly fixed the -timeout problem
-	mentioned in the 10-29 change. Also added error handling for failed
-	writes on the socket during the protocol.
-
-1999-11-09  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* doc/open.n: corrected docs for 'a' open mode.
-
-	* generic/tclIOUtil.c: changed Tcl_Alloc to ckalloc
-
-	* generic/tclInt.h:
-	* generic/tclObj.c: rolled back changes from 1999-10-29
-	Purify noted new leaks with that code
-
-	* generic/tclParse.c: added code in Tcl_ParseBraces to test for
-	possible unbalanced open brace in a comment
-
-	* library/init.tcl: removed the installed binary directory from the
-	auto_path variable
-
-	* tools/tcl.wse.in: updated to 8.3a1, fixed install of twind.tcl and
-	koi8-r.enc files
-
-	* unix/tcl.m4: added recognition of pthreads library for AIX
-
-1999-10-29  Brent Welch <welch@scriptics.com>
-
-	* generic/tclInt.h: Modified the TclNewObj and TclDecrRefCount in two
-	ways. First, in the case of TCL_THREADS, we do not use the special
-	Tcl_Obj allocator because that is a source of lock contention. Second,
-	general code cleanup to eliminate duplicated code. In particular,
-	TclDecrRefCount now uses TclFreeObj instead of duplicating that code,
-	so it is now identical to Tcl_DecrRefCount.
-
-	* generic/tclObj.c: Changed Tcl_NewObj so it uses the TclNewObj macro
-	instead of duplicating the code. Adjusted TclFreeObj so it understands
-	the TCL_THREADS case described above.
-
-	* library/http2.1/http.tcl: Fixed a bug in the handling of the
-	state(status) variable when the -timeout flag is specified. Previously
-	it was possible to leave the status undefined instead of empty, which
-	caused errors in http::status
-
-1999-10-28  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* unix/aclocal.m4: made it just include tcl.m4
-
-	* library/tcltest1.0/tcltest.tcl: updated makeFile to return full
-	pathname of file created
-
-	* generic/tclStringObj.c: fixed Tcl_AppendStringsToObjVA so it only
-	iterates once over the va_list (avoiding a memcpy of it, which is not
-	portable).
-
-	* generic/tclEnv.c: fixed possible ABR error in environ array
-
-	* tests/scan.test:
-	* generic/tclScan.c: added support for use of inline scan, XPG3
-	currently not included
-
-	* tests/incr.test:
-	* tests/set.test:
-	* generic/tclCompCmds.c: fixed improper bytecode handling of 'eval
-	{set array($unknownvar) 5}' (also for incr). [Bug 3184]
-
-	* win/tclWinTest.c: added testvolumetype command, as atime is
-	completely ignored for Windows FAT file systems
-	* win/tclWinPort.h: added sys/utime.h to includes
-	* unix/tclUnixPort.h: added utime.h to includes
-	* doc/file.n:
-	* tests/cmdAH.test:
-	* generic/tclCmdAH.c: added time arguments to atime and mtime file
-	command methods (support 'touch' functionality)
-
-1999-10-20  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* unix/tclUnixNotfy.c: fixed event/io threading problems by making
-	triggerPipe non-blocking. [Bug 2792]
-
-	* library/tcltest1.0/tcltest.tcl:
-	* generic/tclThreadTest.c: fixed mem leaks in threads
-
-	* generic/tclResult.c: fixed Tcl_AppendResultVA so it only iterates
-	once over the va_list (avoiding a memcpy of it, which is not
-	portable).
-
-	* generic/regc_color.c: fixed mem leak and assertion, from HS
-
-	* generic/tclCompile.c: removed savedChar trick that appeared to be
-	causing a segv when the literal table was released
-
-	* tests/string.test:
-	* generic/tclCmdMZ.c: fixed [string index] to return ByteArrayObj when
-	indexing into one (test case string-5.16). [Bug 2871]
-
-	* library/http2.1/http.tcl: protected gets with catch. [Bug 2665]
-
-1999-10-19  Jennifer Hom  <jenn@scriptics.com>
-
-	* tests/tcltest.test:
-	* doc/tcltest.n:
-	* library/tcltest1.0/tcltest.tcl: Removed the extra return at the end
-	of the tcltest.tcl file, added version information about tcl.
-
-	Applied patches sent in by Andreas Kupries to add helper procs for
-	debug output, add 3 new flags (-testsdir, -load, -loadfile), and
-	internally refactors common code for dealing with paths into separate
-	procedures. [Bug 2838, 2842]
-
-	Merged code from core-8-2-1 branch that changes the checks for the
-	value of tcl_interactive to also incorporate a check for the existence
-	of the variable.
-
-	* tests/autoMkindex.test:
-	* tests/pkgMkIndex.test: Explicitly cd to ::tcltest::testsDirectory at
-	the beginning of the test run
-
-	* tests/basic.test: Use version information defined in tcltest instead
-	of hardcoded version number
-
-	* tests/socket.test: package require tcltest before attempting to use
-	variable defined in tcltest namespace
-
-	* tests/unixInit.test:
-	* tests/unixNotfy.test: Added explicit exits needed to avoid problems
-	when the tests area run in wish.
-
-1999-10-12  Jim Ingham  <jingham@scriptics.com>
-
-	* mac/tclMacLoad.c: Stupid bug - we converted the filename to
-	external, but used the unconverted version.
-	* mac/tclMacFCmd.c: Fix a merge error in the bug fix for [Bug 2869]
-
-1999-10-12  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/regc_color.c:
-	* generic/regc_cvec.c:
-	* generic/regc_lex.c:
-	* generic/regc_locale.c:
-	* generic/regcomp.c:
-	* generic/regcustom.h:
-	* generic/regerrs.h:
-	* generic/regex.h:
-	* generic/regexec.c:
-	* generic/regguts.h:
-	* generic/tclRegexp.c:
-	* generic/tclTest.c:
-	* tests/reg.test: updated to Henry Spencer's new regexp engine
-	(mid-Sept 99). Should greatly reduce stack space reqs.
-
-	* library/tcltest1.0/pkgIndex.tcl: fixed procs in pkgIndex.tcl file
-
-	* generic/tclEnv.c: fixed mem leak with putenv and DStrings
-	* doc/Encoding.3: corrected docs
-	* tests/basic.test: updated test cases for 8.3
-	* tests/encoding.test: fixed test case that change system encoding to
-	a double-byte one (this causes a bogus mem read error for purify)
-	* unix/Makefile.in: purify has to use -best-effort to instrument
-	* unix/tclAppInit.c: identified potential mem leak when compiling
-	tcltest (not critical)
-	* unix/tclUnixPipe.c: fixed mem leak in TclpCreateProcess when doing
-	alloc between vfork and execvp.
-	* unix/tclUnixTest.c: fixed mem leak in findexecutable test command
-
-1999-10-05  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* {win,mac,unix,tools,}/README:
-	* win/README.binary:
-	* win/makefile.vc:
-	* {win,unix}/configure.in:
-	* generic/tcl.h:
-	* library/init.tcl: updated to 8.3a1 from 8.2.0.
-
-	* library/http2.1/http.tcl: fixed possible use of global c var.
-
-	* win/tclWinReg.c: fixed registry command to properly 'get'
-	HKEY_PERFORMANCE_DATA root key data. Needs more work.
-
-	* generic/tclNamesp.c:
-	* generic/tclVar.c:
-	* generic/tclCmdIL.c: fixed comment typos
-
-	* mac/tclMacFCmd.c: fixed filename stuff to support UTF-8. [Bug 2869]
-
-	* win/tclWinSerial.c: changed SerialSetOptionProc to return TCL_OK by
-	default. (patch from Rolf Schroedter)
-
-1999-09-21  Jennifer Hom  <jenn@scriptics.com>
-
-	* library/tcltest1.0/tcltest.tcl: Applied patches sent in by Andreas
-	Kupries to fix typos in comments and ::tcltest::grep, fix hook
-	redefinition problems, and change "string compare" to "string equal".
-	[Bug 2836, 2837, 2839, 2840]
-
-1999-09-20  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* tests/env.test:
-	* unix/Makefile.in: added support for AIX LIBPATH env var. [Bug 2793]
-	removed second definition of INCLUDE_INSTALL_DIR (the one that
-	referenced @includedir@) [Bug 2805]
-	* unix/dltest/Makefile.in: added -lc to LIBS. [Bug 2794]
-
-1999-09-16  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* tests/timer.test: changed after delay in timer test 6.29 from 1 to
-	10. [Bug 2796]
-
-	* tests/pkg.test:
-	* generic/tclPkg.c: fixed package version check to disallow 1.2..3
-	[Bug 2539]
-
-	* unix/Makefile.in: fixed gendate target - this never worked since RCS
-	was intro'd.
-	* generic/tclGetDate.y: updated to reflect previous changes to
-	tclDate.c (leap year calc) and added CEST and UCT time zone
-	recognition. Fixed 4 missing UCHAR() casts. [Bug 2717, 954, 1245,
-	1249]
-
-	* generic/tclCkalloc.c: changed Tcl_DumpActiveMemory to really dump to
-	stderr and close it [Bug 725] and changed Tcl_Ckrealloc and
-	Tcl_Ckfree to not bomb when NULL was passed in [Bug 1719] and changed
-	Tcl_Alloc, et al to not panic when a alloc request for zero came
-	through and NULL was returned (valid on AIX, Tru64) [Bug 2795, etc]
-
-	* tests/clock.test:
-	* doc/clock.n:
-	* generic/tclClock.c: added -milliseconds switch to clock clicks to
-	guarantee that the return value of clicks is in the millisecs
-	granularity. [Bug 2682, 1332]
-
-1999-09-15  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclIOCmd.c: fixed potential core dump in conjunction with
-	stacked channels with result obj manipulation in Tcl_ReadChars. [Bug
-	2623]
-
-	* tests/format.test:
-	* generic/tclCmdAH.c: fixed translation of %0#s in format. [Bug 2605]
-
-	* doc/msgcat.n: fixed \\ bug in example. [Bug 2548]
-
-	* unix/tcl.m4:
-	* unix/aclocal.m4: added fix for FreeBSD-[1-2] recognition [Bug 2070]
-	and fix for IRIX SHLIB_LB_LIBS. [Bug 2610]
-
-	* doc/array.n:
-	* tests/var.test:
-	* tests/set.test:
-	* generic/tclVar.c: added an array unset operation, with docs and
-	tests. Variation of [Bug 1775]. Added fix in TclArraySet to check
-	when trying to set in a non-existent namespace. [Bug 2613]
-
-1999-09-14  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* tests/linsert.test:
-	* doc/linsert.n:
-	* generic/tclCmdIL.c: fixed end-int interpretation of linsert to
-	correctly calculate value for end, added test and docs. [Bug 2693]
-
-	* doc/regexp.n:
-	* doc/regsub.n:
-	* tests/regexp.test:
-	* generic/tclCmdMZ.c: add -start switch to regexp and regsub with docs
-	and tests
-
-	* doc/switch.n: added proper use of comments to example.
-	* generic/tclCmdMZ.c: changed switch to complain when an error occurs
-	that seems to be due to a misplaced comment.
-
-	* generic/tclCmdMZ.c: fixed illegal ref for \[0-9] substitutions in
-	regsub. [Bug 2723]
-
-	* generic/tclCmdMZ.c: changed [string equal] to return an Int type
-	object (was a Boolean)
-
-1999-09-01  Jennifer Hom  <jenn@scriptics.com>
-
-	* library/tcltest1.0/tcltest.tcl: Process command-line arguments only
-	::tcltest doesn't have a child namespace (requires that command-line
-	args are processed in that namespace)
-
-1999-09-01  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclParseExpr.c: changed '"' to '\"' to make FreeBSD happy.
-	[Bug 2625]
-	* generic/tclProc.c: moved static buf to better location and changed
-	static msg that would overflow in ProcessProcResultCode [Bug 2483]
-	and added Tcl_DStringFree to Tcl_ProcObjCmd. Also reworked size of
-	static buffers.
-	* tests/stringObj.test: added test 9.11
-	* generic/tclStringObj.c: changed Tcl_AppendObjToObj to properly
-	handle the 1-byte dest and mixed src case where both had had Unicode
-	string len checks made on them. [Bug 2678]
-	* unix/aclocal.m4:
-	* unix/tcl.m4: adjusted fix from 8-21 to add -bnoentry to the AIX-*
-	case and readjusted the range
-
-1999-08-31  Jennifer Hom  <jenn@scriptics.com>
-
-	* library/tcltest1.0/tcltest.tcl:
-	* doc/tcltest.n:
-	* tests/README: Modified testConstraints variable so that it isn't
-	unset every time ::tcltest::initConstraints is called and cleaned up
-	documentation in the README file and the man page.
-
-1999-08-27  Jennifer Hom  <jenn@scriptics.com>
-
-	* tests/env.test:
-	* tests/exec.test:
-	* tests/io.test:
-	* tests/event.test:
-	* tests/tcltest.test: Added 'exit' calls to scripts that the tests
-	themselves write, and removed accidental checkin of knownBugThreaded
-	constraints for Solaris and Linux.
-
-	* library/tcltest1.0/tcltest.tcl: Modified tcltest so that variables
-	are only initialized to their default values if they did not
-	previously exist.
-
-1999-08-26  Jennifer Hom  <jenn@scriptics.com>
-
-	* tests/tcltest.test:
-	* library/tcltest1.0/tcltest.tcl: Added a -args flag that sets a
-	variable named ::tcltest::parameters based on whatever's being sent in
-	as the argument to the -args flag.
-
-1999-08-23  Jennifer Hom  <jenn@scriptics.com>
-
-	* tests/tcltest.test: Added additional tests for -tmpdir, marked all
-	tests that use exec as unixOrPc.
-
-	* tests/encoding.test:
-	* tests/interp.test:
-	* tests/macFCmd.test:
-	* tests/parseOld.test:
-	* tests/regexp.test: Applied patches from Jim Ingham to add encoding
-	to a Mac only interp test, change an error message in macFCmd.tet, put
-	a comment in parseOld.test, fix tests using the testencoding path
-	command, and put unixOrPc constraints on tests that use exec.
-
-1999-08-21  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* unix/aclocal.m4: Changed AIX-4.[2-9] check to AIX-4.[1-9] [Bug 1909]
-
-1999-08-20  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclPosixStr.c: fixed typo. [Bug 2592]
-
-	* doc/*: fixed various nroff bugs in man pages. [Bug 2503 2588]
-
-1999-08-19  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* win/README.binary: fixed version info and some typos. [Bug 2561]
-
-	* doc/interp.n: updated list of commands available in a safe
-	interpreter. [Bug 2526]
-
-	* generic/tclIO.c: changed Tcl_GetChannelNames* to use style guide
-	headers (pleases HP cc)
-
-1999-08-18  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* doc/Eval.3: fixed doc on input args. [Bug 2114]
-
-	* doc/OpenFileChnl.3:
-	* doc/file.n:
-	* tests/cmdAH.test:
-	* tclIO.c:
-	* tclCmdAH.c: added "file channels ?pattern?" tcl command, with
-	associated Tcl_GetChannelNames and Tcl_GetChannelNamesEx public C APIs
-	(added to tcl.decls as well), with docs and tests.
-
-	* tests/expr.test:
-	* generic/tclCompile.c: add TCL_TOKEN_VARIABLE to the part types that
-	cause differed compilation for exprs, to correct the expr
-	double-evaluation problem for vars. Added test cases. Related to [Bug
-	732]
-
-	* unix/Makefile.in: changed the dependency structure so that install-*
-	is dependent on * (ie - install-binaries is dependent on binaries).
-
-	* library/auto.tcl:
-	* library/init.tcl:
-	* library/ldAout.tcl:
-	* library/package.tcl:
-	* library/safe.tcl:
-	* library/word.tcl:
-	* library/http2.1/http.tcl:
-	* library/msgcat1.0/msgcat.tcl: updated libraries to better Tcl style
-	guide (no more string comparisons with == or !=, spacing changes).
-
-1999-08-05  Jim Ingham  <jingham@cygnus.com>
-
-	* mac/tclMacProjects.sea.hqx: Rearrange the projects so that the build
-	directory is separate from the sources. Much more convenient!
-
-1999-08-13  Scott Redman <redman@scriptics.com>
-
-	* /: 8.2.0 tagged for final release
-
-1999-08-12  Scott Stanton  <stanton@scriptics.com>
-
-	* win/Makefile.in: Added COMPILE_DEBUG_FLAGS macro to make it easier
-	to turn on compiler tracing.
-
-	* tests/parse.test:
-	* generic/tclParse.c: Fixed bug in Tcl_EvalEx where the termOffset was
-	not being updated in cases where the evaluation returned a non TCL_OK
-	error code. [Bug 2535]
-
-1999-08-12  Scott Redman  <redman@scriptics.com>
-
-	* win/tclWinSerial.c: Applied patch from Petteri Kettunen to remove
-	compiler warning.
-
-1999-08-10  Scott Redman  <redman@scriptics.com>
-
-	* generic/tclAlloc.c:
-	* generic/tclCmdIL.c:
-	* generic/tclIO.c:
-	* generic/tclThread.c:
-	* win/tclWinThrd.c:
-	* unix/tclUnixThrd.c: Fixed Brent's changes so that they work on
-	Windows (and he fixed the bug in the Unix thread implementation).
-
-1999-08-09  Brent Welch  <welch@scriptics.com>
-
-	* generic/tcl.decls:
-	* generic/tclAlloc.c:
-	* generic/tclCkalloc.c:
-	* generic/tclCmdIL.c:
-	* generic/tclDecls.h:
-	* generic/tclIO.c:
-	* generic/tclInt.decls:
-	* generic/tclIntDecls.h:
-	* generic/tclStubInit.c:
-	* generic/tclVar.c:
-	* mac/tclMacThrd.c:
-	* unix/tclUnixThrd.c:
-	* win/tclWinThrd.c: Added use of Tcl_GetAllocMutex to tclAlloc.c and
-	tclCkalloc.c so they can be linked against alternate thread packages.
-	Added Tcl_GetChannelNames to tclIO.c. Added TclVarTraceExists hook so
-	"info exists" triggers read traces exactly like it did in Tcl 7.6.
-	Stubs table changes to reflect new internal and external APIs.
-
-1999-08-09  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* tests/string.test: added largest_int proc to adapt for >32 bit
-	machines and int overflow testing.
-	* tests/tcltest.test: fixed minor error in 8.2 result (from dgp)
-
-	* doc/Object.3: clarified Tcl_DecrRefCount docs. [Bug 1952]
-	* doc/array.n: clarified array pattern docs. [Bug 1330]
-	* doc/clock.n: fixed clock docs. [Bug 693]
-	* doc/lindex.n: clarified to account for new end-int behavior.
-	* doc/string.n: fixed formatting errors. [Bug 2188 2189]
-	* doc/tclvars.n: fixed doc error. [Bug 2042]
-	* library/init.tcl: fixed path handling in auto_execok (it could miss
-	including the normal path on some Windows machines). [Bug 1276]
-
-1999-08-05  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* doc/tclvars.n: Made it clear that tcl_pkgPath was not set for
-	Windows (already mentioned in init.tcl). [Bug 2455]
-	* generic/tclLiteral.c: fixed reference to bytes that might not be
-	null terminated (using objPtr->bytes, which is). [Bug 2496]
-	* library/http2.1/http.tcl: Made use of "i" in init section use local
-	var and start at 0 (was 1). [Bug 2502]
-
-1999-08-04  Scott Stanton  <stanton@scriptics.com>
-
-	* tests/reg.test: Added test for REG_EXPECT bug fixed by Henry's
-	patch.
-
-	* generic/regc_nfa.c:
-	* generic/regcomp.c:
-	* generic/rege_dfa.c:
-	* generic/regexec.c:
-	* generic/regguts.h: Applied patches supplied by Henry Spencer to
-	greatly enhance the performance of certain classes of regular
-	expressions. [Bug 2440, 2447]
-
-1999-08-03  Scott Redman  <redman@scriptics.com>
-
-	* win/tclWinInt.h: Remove function declarations in header that was
-	moved to tclInt.decls file in previous changes.
-
-1999-08-02  Scott Redman  <redman@scriptics.com>
-
-	* unix/configure.in:
-	* win/configure.in: Change beta level to b2.
-
-	* generic/tcl.h:
-	* generic/tcl.decls:
-	* generic/tclDecls.h:
-	* generic/tclInt.h:
-	* generic/tclInt.decls:
-	* generic/tclIntDecls.h:
-	* generic/tclRegexp.h:
-	* generic/tclStubInit.c: Move some exported public and internal
-	functions to the stub tables. Removed functions that are in the stub
-	tables (from this and previous changes) from the original header
-	files.
-
-1999-08-01  Scott Redman  <redman@scriptics.com>
-
-	* win/tclWinSock.c: Added comment block to SocketThread() function.
-	Added code to avoid calling TerminateThread(), but instead to send a
-	message to the socket event window to tell it to terminate its thread.
-
-1999-07-30  Jennifer Hom  <jenn@scriptics.com>
-
-	* tests/tcltest.test:
-	* library/tcltest1.0/tcltest.tcl: Exit with non-zero status if there
-	were problems with the way the test suite was started (e.g. wrong #
-	arguments).
-
-1999-07-30  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclInt.decls: added declaractions necessary for the Tcl test
-	code to work wth stubs. [Bug 2445]
-
-1999-07-30  Scott Redman  <redman@scriptics.com>
-
-	* win/tclWinPipe.c:
-	* win/Makefile.in: Fixing launching of 16-bit apps on Win9x from wish.
-	The command line was primed with tclpip82.dll, but it was ignored.
-	Fixed that, then fixed the gmake makefile to build tclpip82.dll as an
-	executable.
-
-	* win/tclWinSock.c: Applied small patch to get thread-specific data
-	after initializing the socket driver.
-
-	* unix/tclUnixThrd.c: Applied patch to fix threads on Irix 6.5. Patch
-	from James Dennett. [Bug 2450]
-
-	* tests/info.test: Enable test for tclParse.c change (info complete).
-
-1999-07-30  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* tclIO.c: added fix for Kupries' trf patch. [Bug 2386]
-
-	* tclParse.c: fixed bug in info complete regarding nested square
-	brackets. [Bug 2382, 2466]
-
-1999-07-29  Scott Redman  <redman@scriptics.com>
-
-	* win/tclWinChan.c: Allow tcl to open CON and NUL, even for std
-	channels. Checking for bad/unusable std channels was moved to Tk since
-	its only purpose was to check whether to use the Tk Console Window for
-	the std channels. [Bug 2393 2392 2209 2458]
-
-	* unix/mkLinks.tcl: Applied patch to avoid linking pack.n to
-	pack-old.n. Patch from Don Porter. [Bug 2469]
-
-	* doc/Encoding.n: Applied patch to fix typo in .SH NAME line. Patch
-	from Don Porter. [Bug 2451]
-
-	* win/tclWinSock.c: Free Win32 Event handles when destroying the
-	socket helper thread.
-
-1999-07-28  Jennifer Hom  <jenn@scriptics.com>
-
-	* tests/tcltest.test:
-	* library/tcltest1.0/tcltest.tcl: Fixed the condition under which
-	::tcltest::PrintError had an infinite loop problem and added a test
-	case for it. Added an optional argument to ::tcltest::getMatchingFiles
-	telling it where to search for test files.
-
-1999-07-27  Scott Redman  <redman@scriptics.com>
-
-	* tools/tclSplash.bmp: Updated Windows installer bitmap to ready
-	Tcl/Tk Version 8.2.
-
-1999-07-26  Scott Redman  <redman@scriptics.com>
-
-	* tests/tcltest.test: Need to close the new core file, there seems to
-	be a hang in threaded WinNT if the file isn't closed. Open issue, need
-	to fix that hang.
-
-	* tests/httpold.test: Add time delay in response from Http server so
-	that test cases can properly detect timeout conditions with threads
-	enabled on multi-CPU WinNT.
-
-	* tests/winFCmd.test: Test case winFcmd-1.33 was looking for
-	c:\windows, which may not exist. Instead, create a new directory on
-	c:\ and use it for the test.
-
-	* win/tclWinConsole.c:
-	* win/tclWinPipe.c:
-	* win/tclWinSock.c: Fix terminating helper threads by holding any
-	mutexes from the primary thread while waiting for the helper thread to
-	terminate. Without these changes, the test suite hangs on WinNT with 2
-	CPUs and threads enabled. Open issue, seems to be a sporadic hang on
-	dual CPU systems still (very rare).
-
-1999-07-26  Jennifer Hom  <jenn@scriptics.com>
-
-	* tests/tcltest.test:
-	* library/tcltest1.0/tcltest.tcl:
-	* doc/tcltest.n: Cleaned up code in ::tcltest::PrintError, revised
-	documentation, and added tests for the tcltest package.
-
-1999-07-23  Scott Redman  <redman@scriptics.com>
-
-	* tests/info.test:
-	* generic/tclParse.c: Removed patch for info command, breaks test
-	cases on Unix. Patch was bad and needs to be redone properly. [Bug
-	2382]
-
-1999-07-22  Scott Redman  <redman@scriptics.com>
-
-	* Changed version to 8.2b2.
-
-	* win/tclWinSock.c: Fixed hang with threads enabled, fixed semaphores
-	with threads disabled.
-
-	* win/safe.test: Fixed safe-6.3 with threads enabled.
-
-	* win/Makefile.in: Fixed calling of tcltest to fix safe.test failures
-	due to path TCL_LIBRARY path.
-
-	* win/tclWinPort.h: Block out include of sys/*.h in order to build
-	extensions with MetroWerks compiler for Win32. [Bug 2385]
-
-	* generic/tclCmdMZ.c:
-	* generic/tclIO.c: Fix ANSI-style prototypes based on patch from
-	Ulrich Ring. [Bug 2391]
-
-	* unix/Makefile.in: Need to make install-sh executable before calling
-	(with chmod +x). [Bug 2413]
-
-	* tests/var.test:
-	* generic/tclVar.c: Fixed bug that caused a seg. fault when using
-	"array set a(b) {}", which is a bad array name anyway. Now the "array
-	set" command will return an error in this case. Added test case and
-	fixed existing test. [Bug 2427]
-
-1999-07-21  Scott Redman  <redman@scriptics.com>
-
-	* tests/info.test:
-	* generic/tclParse.c: Applied patch to fix "info complete" for the
-	string {[a [b]}. Patch from Peter Spjuth. [Bug 2382]
-
-	* doc/Utf.3:
-	* generic/tcl.decls:
-	* generic/tclDecls.h:
-	* generic/tclUtf.c: Changed function declarations in
-	non-platform-specific public APIs to use "unsigned long" instead of
-	"size_t", which may not be defined on certain compilers (rather than
-	include sys/types.h, which may not exist).
-
-	* unix/Makefile.in: Added the Windows configure script to the
-	distribution file list, already shipping configure.in and the .m4
-	files, but needed the configure script itself.
-
-	* win/makefile.vc: Changed version number of DDE package in VC++
-	makefile to use 1.1 instead of 1.0.
-
-	* doc/open.n: Added documentation of \\.\comX notation for opening
-	serial ports on Windows (alternative to comX:).
-
-	* tests/ioCmd.test:
-	* doc/open.n:
-	* win/tclWinSerial.c: Applied patch from Rolf Schroedter to add
-	-pollinterval option to fconfigure to modify the maxblocktime used in
-	the fileevent polling. Added documentation and fixed the test case as
-	well.
-
-	* win/tclWinSock.c: Modified 8.1.0 version of the Win32 socket driver
-	to move the handling of the socket event window in a separate thread.
-	It also turned out that Win95 & Win98 were, in some cases, getting
-	multiple FD_ACCEPTs but only handling one. Added a count for the
-	FD_ACCEPT to take care of this. Tested on NT4 SP3, NT4 SP4, Win95, and
-	Win98. [Bug 2178 2256 2259 2329 2323 2355]
-
-1999-07-21  Jerry Peek  <jpeek@scriptics.com>
-
-	* README: Small tweaks to clean up typos and wording.
-
-1999-07-20  Melissa Hirschl  <hershey@matisse.scriptics.com>
-
-	* generic/tclInitScript.h:
-	* unix/tclUnixInit.c: merged code with 8.0.5. We now use an
-	intermediate global tcl var "tclDefaultLibrary" to keep the
-	"tcl_library" var from being set by the default value in the Makefile.
-	Also fixed a bug in which caused the value of TCL_LIBRARY env var to
-	be ignored.
-	* unix/tclWinInit.c: just updated some comments.
-
-1999-07-19  Melissa Hirschl  <hershey@matisse.scriptics.com>
-
-	* library/http2.1/http.tcl: updated -useragent text to say version
-	2.1.
-
-1999-07-16  Scott Redman  <redman@scriptics.com>
-
-	* generic/tcl.decls:
-	* generic/tclDecls.h:
-	* generic/tclStubInit.c: Add Tcl_SetNotifier to stub table. [Bug 2364]
-
-	* unix/aclocal.m4:
-	* unix/tcl.m4: Add check for Alpha/Linux to correct the IEEE floating
-	flag to the compiler, should be -mieee. Patch from Don Porter.
-
-	* tools/tcl.hpj.in: Change version number of .cnt file referenced in
-	.HPJ file.
-
-1999-07-15  Scott Redman  <redman@scriptics.com>
-
-	* tools/tcl.wse.in: Fixed naming of target files for Windows.
-
-1999-07-14  Jerry Peek  <jpeek@scriptics.com>
-
-	* doc/re_syntax.n: Deleted sentence as suggested by Scott S.
-
-1999-07-12  Jerry Peek  <jpeek@scriptics.com>
-
-	* doc/re_syntax.n: Removed two notes to myself (oops), cleaned up
-	wording, fixed changebars, made two examples easier to read.
-
-1999-07-11  Scott Redman  <redman@scriptics.com>
-
-	* win/makefile.vc: Since the makefile.vc should continue to work while
-	we're working out bugs/issues in the new TEA-style
-	autoconf/configure/gmake build mechanism for Windows, the version
-	numbers of the Tcl libraries need to remain in sync. Modified the
-	version numbers in the makefile to reflect the change to 8.2b1.
-
-1999-07-09  Scott Redman  <redman@scriptics.com>
-
-	* win/configure.in: Eval DLLSUFFIX, LIBSUFFIX, and EXESUFFIX in the
-	configure script so that substitutions get expanded before being
-	placed in the Makefile. The "d" portion for debug libraries and DLLs
-	was not being set properly.
-
-1999-07-08  Scott Stanton  <stanton@scriptics.com>
-
-	* tests/string.test:
-	* generic/tclCmdMZ.c: Fixed bug in string range bounds checking code.
-
-1999-07-08  Jennifer Hom  <jenn@scriptics.com>
-
-	* doc/tcltest.n:
-	* library/tcltest1.0/tcltest.tcl: Removed -asidefromdir and
-	-relateddir flags, removed unused ::tcltest::dotests proc, cleaned up
-	implementation of core file checking, and fixed the code that checks
-	for 1-letter flag abbreviations.
-
-1999-07-08  Scott Stanton  <stanton@scriptics.com>
-
-	* win/Makefile.in: Added tcltest target so runtest works properly.
-	Added missing names to the clean/distclean targets.
-
-	* tests/reg.test:
-	* generic/rege_dfa.c: Applied fix supplied by Henry Spencer for bug in
-	DFA state caching under lookahead conditions. [Bug 2318]
-
-1999-07-07  Scott Stanton  <stanton@scriptics.com>
-
-	* doc/fconfigure.n: Clarified default buffering behavior for the
-	standard channels. [Bug 2335]
-
-1999-07-06  Scott Redman  <redman@scriptics.com>
-
-	* win/tclWinSerial.c: New implementation of serial port driver from
-	Rolf Shroedter (Rolf.Schroedter@dlr.de) that allows more than one byte
-	to be read from the port. Implemented using polling instead of
-	threads, there is a max. 10ms latency between checking the port for
-	file events. [Bug 1980 2217]
-
-1999-07-06  Brent Welch  <welch@scriptics.com>
-
-	* library/http2.0/http.tcl: Fixed the -timeout option so it handles
-	timeouts that occur during connection attempts to hosts that are down
-	(the only case that really matters!)
-
-1999-07-03  Brent Welch  <welch@scriptics.com>
-
-	* doc/ChnlStack.3:
-	* generic/tcl.decls:
-	* generic/tclIO.c: Added a new variant of the "Trf patch" from Andreas
-	Kupres that adds new C APIs Tcl_StackChannel, Tcl_UnstackChannel, and
-	Tcl_GetStackedChannel.
-
-1999-07-03  Brent Welch  <welch@scriptics.com>
-
-	* generic/tclNotify.c:
-	* unix/tclUnixNotfy.c:
-	* unix/tclXtTest.c:
-	* unix/tclXtNotify.c:
-	* win/tclWinNotify.c:
-	* mac/tclMacNotify.c: Added Tcl_SetNotifier and the associated hook
-	points in the notifiers to be able to replace the notifier calls at
-	runtime. The Xt notifier and test program use this hook.
-
-1999-07-03  Brent Welch  <welch@scriptics.com>
-
-	* generic/tclParse.c: Changed parsing of variable names to allow empty
-	array names. Now "$(foo)" is a variable reference! Previous you had to
-	use something like $::(foo), which is slower. This change is requested
-	by Jean-Luc Fontaine for his STOOOP package.
-
-1999-07-01  Scott Redman  <redman@scriptics.com>
-
-	* generic/tclCmdAH.c:
-	* generic/tclFCmd.c: Call TclStat instead of TclpStat in order to
-	allow Tcl_Stat hooks to work properly.
-
-1999-06-29  Jennifer Hom  <jenn@scriptics.com>
-
-	* library/tcltest1.0/pkgIndex.tcl:
-	* library/tcltest1.0/tcltest.tcl:
-	* doc/tcltest.n:
-	* tests/all.tcl: Added -preservecore, -limitconstraints, -help, -file,
-	-notfile, -relateddir and -asidefromdir flags to the tcltest package
-	along with exported proc ::tcltest::getMatchingFiles. The
-	documentation was modified to match and all.tcl was modified to use
-	the new functionality instead of implementing -file itself.
-
-1999-06-28  Scott Redman  <redman@scriptics.com>
-
-	* generic/tclIndexObj.c:
-	* doc/GetIndex.3:
-	* tests/binary.test:
-	* tests/winDde.test: Applied patch from Peter Hardie (with changes) to
-	fix problem with Tcl_GetIndexFromObj() when the key being passed is
-	the empty string. It used to match "" and return TCL_OK, but it should
-	have returned TCL_ERROR instead. Added test case to "binary" and "dde"
-	commands to check the behavior. Added documentation note as well.
-
-1999-06-26  Scott Redman  <redman@scriptics.com>
-
-	* win/tclWinDde.c: Applied patch from Peter Hardie to add poke command
-	to dde. Also rev'd version of dde package to 1.1. [Bug 1738]
-
-1999-06-25  Jennifer Hom  <jenn@scriptics.com>
-
-	* unix/Makefile.in:
-	* win/Makefile.in:
-	* library/tcltest1.0/pkgIndex.tcl:
-	* library/tcltest1.0/tcltest.tcl:
-	* library/tcltest1.0: Added initial implementation of the Tcl test
-	harness package. This package was based on the defs.tcl file that was
-	part of the tests directory. Reversed the way that tests were
-	evaluated to fix a problem with false passes.
-
-	* doc/tcltest.n: Added documentation for the tcltest package.
-
-	* tests/README:
-	* tests/defs.tcl:
-	* tests/all.tcl: Modified all test files (tests/*.test) and all.tcl to
-	use the new tcltest package and removed references to the defs.tcl
-	file. Modified the README file to point to the man page for tcltest.
-
-1999-06-25  Scott Stanton  <stanton@scriptics.com>
-
-	* tests/reg.test:
-	* generic/regexec.c: Fixed bugs in non-greedy quantifiers.
-
-1999-06-23  Jerry Peek  <jpeek@scriptics.com>
-
-	* doc/re_syntax.n:
-	* doc/switch.n:
-	* doc/lsearch.n:
-	* doc/RegExp.3:
-	* doc/regexp.n:
-	* doc/regsub.n: Moved information about syntax of 8.1 regular
-	expressions from regexp(n) manpage into new re_syntax(n) page. Added
-	pointers from other manpages to new re_syntax(n) page.
-
-1999-06-23  Scott Stanton  <stanton@scriptics.com>
-
-	* unix/Makefile.in: Changed install-doc to install-man.
-
-	* tools/uniParse.tcl:
-	* tools/uniClass.tcl:
-	* tools/README:
-	* tests/string.test:
-	* generic/regc_locale.c:
-	* generic/tclUniData.c:
-	* generic/tclUtf.c:
-	* doc/string.n: Updated Unicode character tables to reflect latest
-	Unicode 2.1 data. Also rationalized "regexp" and "string is"
-	definitions of character classes.
-
-1999-06-21  Scott Stanton  <stanton@scriptics.com>
-
-	* unix/tclUnixThrd.c (TclpThreadCreate): Fixed memory leak where
-	thread attributes were not being released. [Bug 2254]
-
-1999-06-17  Scott Stanton  <stanton@scriptics.com>
-
-	* tests/regexp.test:
-	* generic/tclCmdMZ.c:
-	* generic/tclCmdIL.c: Changed to use new regexp interfaces. Added
-	-expanded, -line, -linestop, and -lineanchor switches to regsub.
-
-	* doc/RegExp.3: Documented the new regexp interfaces and the
-	compile/execute flags.
-
-	* generic/tclTest.c:
-	* generic/tclRegexp.h:
-	* generic/tclRegexp.c:
-	* generic/tcl.h:
-	* generic/tcl.decls: Renamed Tcl_RegExpMatchObj to Tcl_RegExpExecObj
-	and added a new Tcl_RegExpMatchObj that is equivalent to
-	Tcl_RegExpMatch. Added public macros for the regexp compile/execute
-	flags. Changed to store either an object pointer or a string pointer
-	in the TclRegexp structure. Changed to avoid adding a reference to the
-	object or copying the string.
-
-	* generic/regcomp.c: lint
-
-	* tests/reg.test:
-	* generic/regex.h:
-	* generic/regc_lex.c: Added REG_BOSONLY flag to allow Expect to
-	iterate through a string an only find matches that start at the
-	current position within the string.
-
-1999-06-16  Michael Thomas  <wart@scriptics.com>
-
-	* unix/configure.in:
-	* unix/Makefile.in:
-	* unix/tcl.m4:
-	* unix/aclocal.m4: Numerous build changes to make Tcl conform to the
-	proposed TEA spec
-
-1999-06-16  Melissa Hirschl  <hershey@matisse.scriptics.com>
-
-	* generic/tclVar.c (Tcl_VariableObjCmd): fixed premature increment in
-	loop that was causing out-of-bounds reads on array "varName".
-
-1999-06-16  Scott Stanton  <stanton@scriptics.com>
-
-	* tests/execute.test:
-	* generic/tclExecute.c (TclExecuteByteCode): Fixed crash caused by a
-	bug in INST_LOAD_SCALAR1 where the scalar index was read as a signed 1
-	byte value instead of unsigned. [Bug 2243]
-
-1999-06-14  Melissa Hirschl  <hershey@matisse.scriptics.com>
-
-	* doc/StringObj.3
-	* test/stringObj.test
-	* unix/Makefile.in
-	* win/Makefile.in
-	* win/makefile.vc
-	* generic/tclStringObj.c:
-	Merged String and Unicode object types. Added new functions to the
-	puplic API: Tcl_NewUnicodeObj, Tcl_SetUnicodeObj, Tcl_GetUnicode,
-	Tcl_GetUniChar, Tcl_GetCharLength, Tcl_GetRange,
-	Tcl_AppendUnicodeToObj.
-
-1999-06-09  Scott Stanton  <stanton@scriptics.com>
-
-	* generic/tclUnicodeObj.c: Lots of cleanup and simplification. Fixed
-	several memory bugs. Added TclAppendUnicodeToObj.
-
-	* generic/tclInt.h: Added declarations for various Unicode string
-	functions.
-
-	* generic/tclRegexp.c:
-	* generic/tclCmdMZ.c: Changed to use new Unicode string interfaces for
-	better performance.
-
-	* generic/tclRegexp.h:
-	* generic/tclRegexp.c:
-	* generic/tcl.h:
-	* generic/tcl.decls: Added Tcl_RegExpMatchObj and Tcl_RegExpGetInfo
-	calls to access lower level regexp API. These features are needed by
-	Expect. This is a preliminary implementation pending final review and
-	cleanup.
-
-	* generic/tclCmdMZ.c:
-	* tests/string.test: Fixed bug where string map failed on null strings
-
-	* generic/regexec.c:
-	* unix/tclUnixNotfy.c: lint
-
-	* tools/genStubs.tcl: Changed to always write output in LF mode.
-
-1999-06-08  Scott Stanton  <stanton@scriptics.com>
-
-	* win/tclWinSock.c: Rolled back to the 8.1.0 implementation because of
-	serious problems with the new driver. Basically no incoming socket
-	connections would be reported to a server port. The 8.1.1 code needs
-	to be redesigned and fixed correctly.
-
-1999-06-07  Melissa Hirschl  <hershey@matisse.scriptics.com>
-
-	* tests/string.test:
-	* generic/tclVar.c (Tcl_SetVar2Ex):
-	* generic/tclStringObj.c (Tcl_AppendObjToObj):
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd): optimized the string index,
-	string length, string range, and append command in cases where the
-	object's internal rep is a bytearray. Objects with other internal reps
-	are converted to have the new unicode internal rep.
-
-	* unix/Makefile.in:
-	* win/Makefile.in:
-	* win/Makefile.vc:
-	* tests/unicode.test:
-	* generic/tclInt.h:
-	* generic/tclObj.c:
-	* generic/tclUnicodeObj.c: added a new object type to store the
-	unicode representation of a string.
-
-	* generic/tclTestObj.c: added the objtype option to the testobj
-	command. This option returns the name of the type of internal rep an
-	object has.
-
-1999-06-04  Scott Stanton  <stanton@scriptics.com>
-
-	* win/configure.in:
-	* win/Makefile.in: Windows build now handles static/dynamic
-	debug/nodebug builds and supports the standard targets using Cygwin
-	user tools plus GNU make and autoconf.
-
-1999-06-03  Scott Stanton  <stanton@scriptics.com>
-
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd):
-	* tests/string.test: Fixed bug where string equal/compare -nocase
-	reported wrong result on null strings. [Bug 2138]
-
-1999-06-02  Scott Stanton  <stanton@scriptics.com>
-
-	* generic/tclUtf.c (Tcl_UtfNcasecmp): Fixed incorrect computation of
-	relative ordering. [Bug 2135]
-
-1999-06-01  Scott Stanton  <stanton@scriptics.com>
-
-	* unix/configure.in: Fixed various small configure.in patches
-	submitted by Jan Nijtmans. [Bug 2121]
-
-	* tests/reg.test:
-	* generic/regc_color.c:
-	* generic/regc_cvec.c:
-	* generic/regc_lex.c:
-	* generic/regc_locale.c:
-	* generic/regc_nfa.c:
-	* generic/regcomp.c:
-	* generic/regcustom.h:
-	* generic/rege_dfa.c:
-	* generic/regerror.c:
-	* generic/regerrs.h:
-	* generic/regex.h:
-	* generic/regexec.c:
-	* generic/regfree.c:
-	* generic/regfronts.c:
-	* generic/regguts.h:
-	* generic/tclCmdMZ.c:
-	* generic/tclRegexp.c:
-	* generic/tclRegexp.h:
-	* generic/tclTest.c: Applied Henry Spencer's latest regexp patches
-	that fix an infinite loop bug and add support for testing whether a
-	string could match with additional input. [Bug 2117]
-
-1999-05-28  Scott Stanton  <stanton@scriptics.com>
-
-	* generic/tclObj.c: Changed to eliminate use of isupper/tolower in
-	favor of the Unicode versions.
-
-	* win/Makefile.in:
-	* win/configure.in: Added preliminary TEA implementation.
-
-	* win/tclWinDde.c: Fixed bug where dde calls were being passed an
-	invalid dde handle because Initialize had not been called. [Bug 2124]
-
-1999-05-26  Scott Redman  <redman@scriptic.com>
-
-	* generic/tclThreadTest.c: Fixed race condition in testthread code
-	that showed up in the WinNT test suite intermittently.
-
-	* win/tclWinSock.c: Fixed a hang in the WinNT socket driver, wake up
-	the socket thread every 100ms to check for events on the sockets that
-	did not wake up the thread (race condition).
-
-1999-05-24  Scott Stanton  <stanton@scriptics.com>
-
-	* tools/genStubs.tcl: Changed to allow a list of platforms instead of
-	just one at a time.
-
-	* generic/tcl.decls:
-	* generic/tclCmdMZ.c:
-	* generic/tclDecls.h:
-	* generic/tclInt.decls:
-	* generic/tclIntDecls.h:
-	* generic/tclPort.h:
-	* generic/tclStubInit.c:
-	* generic/tclStubLib.c: Various header file related changes and other
-	lint to try to get the Mac builds working.
-
-1999-05-21  Scott Redman  <redman@scriptics.com>
-
-	* win/tclWinPipe.c: Fix bug when launching command.com on Win95/98.
-	Need to wait for the procInfo.hProcess of the process that was
-	created, not the hProcess of the current process. [Bug 2105]
-
-1999-05-20  Scott Redman  <redman@scriptics.com>
-
-	* library/init.tcl: Add the directory where the executable is, and the
-	../lib directory relative to that, to the auto_path variable.
-
-1999-05-19  Scott Stanton  <stanton@scriptics.com>
-
-	Merged in various changes submitted by Jeff Hobbs:
-
-	* generic/tcl.decls:
-	* generic/tclUtf.c: Added Tcl_UniCharIs* functions for control, graph,
-	print, and punct classes.
-
-	* generic/tclUtil.c:
-	* doc/StrMatch.3: Added Tcl_StringCaseMatch() implementation to
-	support case-insensitive globbing.
-
-	* doc/string.n:
-	* unix/mkLinks:
-	* tests/string.test:
-	* generic/tclCmdMZ.c: Added additional character class tests, added
-	-nocase switch to "string match", changed string first/last to use
-	offsets.
-
-1999-05-19  Scott Redman  <redman@scriptics.com>
-
-	* generic/tcl.h: Add extern "C" block around entire header file for
-	C++ compilers to fix linkage issues. Submitted by Don Porter and Paul
-	Duffin.
-
-	* generic/tclRegexp.c: Fix bug when the regexp cache is empty and an
-	empty pattern is used in regexp ( such as {} or "" ).
-
-1999-05-18  Scott Stanton  <stanton@scriptics.com>
-
-	* win/tclWinChan.c: Modified initialization code to avoid inherenting
-	closed or invalid channels. If the standard input is anything other
-	than a console, file, serial port, or pipe, then we fall back to the
-	standard Tk window console.
-
-1999-05-14  Scott Stanton  <stanton@scriptics.com>
-
-	* generic/tclCmdAH.c (Tcl_ForObjCmd): Fixed crash caused by failure to
-	reset the result before evaluating the test expression.
-
-1999-05-14  Bryan Surles  <surles@scriptics.com>
-
-	* generic/tclBasic.c (Tcl_CreateInterp): Added introspection variable
-	for threaded interps. If the interp was compiled with threads enabled,
-	the tcl_platform(threaded) variable will exist.
-
-1999-05-14  Scott Redman  <redman@scriptics.com>
-
-	* generic/tclDate.c: Applied patch to fix 100-year and 400-year
-	boundaries in leap year code, from Isaac Hollander. [Bug 2066]
-
-1999-05-13  Scott Stanton  <stanton@scriptics.com>
-
-	* unix/Makefile.in:
-	* unix/tclAppInit.c: Minor cleanup related to Xt notifier.
-
-	* unix/tclUnixInit.c (TclpSetInitialEncodings): Tcl now looks for an
-	encoding subfield in the LANG/LC_ALL variables in cases where the
-	locale is not found in the locale table. Ensure that setlocale() is
-	called at least once so X11 will initialize properly. Also, forces the
-	LC_NUMERIC locale to be "C" so numeric processing in scripts is not
-	affected by the current locale setting. [Bug 1989]
-
-	* generic/tclRegexp.c: Increased per-thread regexp cache to 30 slots.
-	This seems to be about the right number for larger applications like
-	exmh. [Bug 1063]
-
-1999-05-12  Scott Stanton  <stanton@scriptics.com>
-
-	* doc/tclsh.1: Updated references to rc script names to accurately
-	reflect the platform differences on Windows.
-
-	* tests/regexp.test:
-	* generic/tclInt.h:
-	* generic/tclBasic.c:
-	* generic/tclRegexp.h:
-	* generic/tclRegexp.c: Replaced the per-interpreter regexp cache with
-	a per-thread cache. Changed the Regexp object to take advantage of
-	this extra cache. Added a reference count to the TclRegexp type so
-	regexps can be shared by multiple objects. Removed the per-interp
-	regexp cache from the interpreter. Now regexps can be used with no
-	need for an interpreter. [Bug 1063]
-
-	* win/tclWinInit.c (TclpSetVariables): Avoid calling GetUserName if
-	the value can be determined from the USERNAME environment variable.
-	GetUserName is very slow.
-
-1999-05-07  Scott Stanton  <stanton@scriptics.com>
-
-	* win/winDumpExts.c:
-	* win/makefile.vc: Removed incorrect patch. [Bug 1998]
-
-	* generic/tcl.decls: Replaced const with CONST.
-
-	* generic/tclResult.c (Tcl_AppendResultVA):
-	* generic/tclStringObj.c (Tcl_AppendStringsToObjVA): Fixed to copy
-	arglist using memcpy instead of assignment so it works properly on
-	OS/390. [Bug 1997]
-
-	* generic/tclLoadNone.c: Updated to use current interfaces, added
-	TclpUnloadFile. [Bug 2003]
-
-	* win/winDumpExts.c:
-	* win/makefile.vc: Changed to emit library name in defs file. [Bug
-	1998]
-
-	* unix/configure.in: Added fix for OS/390. [Bug 1976]
-
-1999-05-06  Scott Stanton  <stanton@scriptics.com>
-
-	* tests/string.test:
-	* generic/tclCmdMZ.c:
-	* doc/string.n: Fixed bug in string equal/compare code when using
-	-length option. Cleaned up docs a bit more.
-
-	* tests/http.test: Unset "data" array before running tests to avoid
-	failures due to previous tests.
-
-	* doc/string.n:
-	* tests/cmdIL.test:
-	* tests/cmdMZ.test:
-	* tests/error.test:
-	* tests/ioCmd.test:
-	* tests/lindex.test:
-	* tests/linsert.test:
-	* tests/lrange.test:
-	* tests/lreplace.test:
-	* tests/string.test:
-	* tests/cmdIL.test:
-	* generic/tclUtil.c:
-	* generic/tclCmdMZ.c: Replaced "string icompare/iequal" with -nocase
-	and -length switches to "string compare/equal". Added a -nocase option
-	to "string map". Changed index syntax to allow integer or
-	end?-integer? instead of a full expression. This is much simpler with
-	safeTcl scripts since it avoids double substitution issues.
-
-	* doc/Utf.3:
-	* generic/tclStubInit.c:
-	* generic/tclDecls.h:
-	* generic/tclUtf.c:
-	* generic/tcl.decls: Added Tcl_UtfNcmp and Tcl_UtfNcasecmp.
-
-1999-05-05  Scott Stanton  <stanton@scriptics.com>
-
-	* win/makefile.vc: Added encoding directory to install-libraries
-	target.
-
-1999-05-03  Scott Stanton  <stanton@scriptics.com>
-
-	* doc/string.n:
-	* tests/cmdMZ.test:
-	* tests/string.test:
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd): Changed "string length" to
-	avoid regenerating the string rep of a ByteArray object.
-
-	* tests/cmdIL.test:
-	* tests/cmdMZ.test:
-	* tests/error.test:
-	* tests/lindex.test:
-	* tests/linsert.test:
-	* tests/lrange.test:
-	* tests/lreplace.test:
-	* tests/string.test:
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd):
-	* generic/tclUtil.c (TclGetIntForIndex): Applied Jeff Hobbs's string
-	patch which includes the following changes [Bug 1845]:
-	- string compare now takes optional length arg (for strncmp behavior)
-	- added string equal (just a few lines of code blended in with string
-	  compare)
-	- added string icompare/iequal for case-insensitive comparisons
-	- string index's index can now be ?end[+-]?expression
-	  I made this change in the private TclGetIntForIndex, which means
-	  that the list commands also benefit, as well as string range, et al.
-	- added [string repeat string count]
-	  Repeats given string number of times
-	- added string replace, string equiv to lreplace
-	  (quasi opposite of string range):
-		string replace first last ?string?
-	  Example of use, replacing end of string with ... should the string
-	  be more than 16 chars long:
-		string replace $string 16 end "..."
-	  This just returns the string len < 16, so it will only affect the
-	  long strings.
-	- added optional first and last args to string to*
-	  This allows you to just affect certain regions of a string with the
-	  command (like just capping the first letter). I found the original
-	  totitle to be too draconian to be useful.
-	- added [string map charMap string]
-	  where charMap is a {from to from to} list that equates to what one
-	  might get from [array get]. Each and can be multiple chars (or none
-	  at all). For Tcl/CGI users, this is a MAJOR speed booster.
-
-	* generic/tclParse.c (Tcl_ParseCommand): Changed to avoid modifying
-	eval'ed strings that are already null terminated. [Bug 1793]
-
-	* tests/binary.test:
-	* generic/tclBinary.c (DupByteArrayInternalRep): Fixed bug where type
-	was not being set in duplicated object. [Bug 1975, 2047]
-
-1999-04-30  Scott Stanton  <stanton@scriptics.com>
-
-	* Changed version to 8.1.1.
-
-1999-04-30  Scott Stanton  <stanton@scriptics.com>
-
-	* Merged changes from 8.1.0 branch:
-
-	* generic/tclParse.c: Fixed memory leak in CommandComplete.
-
-	* generic/tclPlatDecls.h:
-	* generic/tclIntPlatDecls.h:
-	* generic/tclIntDecls.h:
-	* generic/tclDecls.h:
-	* tools/genStubs.tcl: Added 'extern "C" {}' block around the stub
-	table pointer declaration so the stub library can be used from C++.
-	[Bug 1934]
-
-	* Lots of documentation and other release engineering fixes.
-
-1999-04-28  Scott Stanton  <stanton@scriptics.com>
-
-	* mac/tclMacResource.c:
-	* generic/tclListObj.c:
-	* generic/tclObj.c:
-	* generic/tclStringObj.c: Changed to avoid freeing the string
-	representation before freeing the internal rep. This helps with
-	debugging since the string rep will still be valid when the free proc
-	is invoked.
-
-1999-04-27  Scott Stanton  <stanton@scriptics.com>
-
-	* generic/tclLiteral.c (TclHideLiteral): Fixed so hidden literals get
-	duplicated to avoid accidental sharing in the global object table.
-
-1999-04-23  Scott Stanton  <stanton@scriptics.com>
-
-	* generic/tclStubInit.c:
-	* tools/genStubs.tcl: Changed to avoid the need for forward
-	declarations in stub initializers.
-
-1999-04-23  Scott Stanton  <stanton@scriptics.com>
-
-	* library/encoding/koi8-r.enc:
-	* tools/encoding/koi8-r.txt: Added support for the koi8-r Cyrillic
-	encoding. [Bug 1771]
-
-1999-04-22  Scott Stanton  <stanton@scriptics.com>
-
-	* win/tclWinFCmd.c:
-	* win/tclWin32Dll.c: Changed uses of "try" to "__try", since that is
-	the actual keyword. This eliminates the need for some -D flags from
-	the makefile.
-
-	* generic/tclPort.h: Added include of tcl.h since it defines various
-	Windows macros that are needed before deciding which platform porting
-	file to use.
-
-	* generic/tclEvent.c: lint
-
-	* win/tclWinInit.c (TclpInitPlatform): Added call to TclWinInit when
-	building a static library since DllMain will not be invoked. This
-	could break old code that explicitly called TclWinInit, but should be
-	simpler in the long run.
-
-1999-04-22  Scott Stanton  <stanton@scriptics.com>
-
-	* generic/tclInt.h:
-	* generic/tclInt.decls:
-	* generic/tclCompile.c: Added TclSetByteCodeFromAny that takes a hook
-	procedure to invoke after compilation but before the byte codes are
-	emitted. This makes it possible to do postprocessing on the compiled
-	byte codes before the ByteCode is generated.
-
-	* generic/tclLiteral.c: Added TclHideLiteral and TclAddLiteralObj to
-	make it possible to create local unshared literal objects.
-
-	* win/tclWinInit.c:
-	* unix/tclUnixInit.c: Changed initial search path to match that
-	found used by tcl_findLibrary.
-
-1999-04-22  Scott Redman  <redman@scriptics.com>
-
-	* win/tclWinPort.h:
-	* win/tclWinSock.c: Added code to use WinSock 2.0 API on NT to avoid
-	creating a window to handle sockets. API not available on Win95 and
-	needs to be fixed on Win98, until then continue to use the older
-	(window-based) scheme on those two OSes.
-
-1999-04-15  Scott Stanton  <stanton@scriptics.com>
-
-	* Merged 8.1 back into the main trunk
-
-1999-04-13  Scott Stanton  <stanton@scriptics.com>
-
-	* library/encoding/gb2312.enc:
-	* library/encoding/euc-cn.enc:
-	* tools/encoding/gb2312.txt:
-	* tools/encoding/cp950.txt:
-	* tools/encoding/Makefile: Restored the double byte definition of
-	GB2312 and added the EUC-CN encoding. EUC-CN is a variant of GB2312
-	that shifts the characters into bytes with the high bit set and
-	includes ASCII as a subset. [Bug 632]
-
-1999-04-13  Scott Redman  <redman@scriptics.com>
-
-	* win/tclWinSock.c: Apply patch to allow write access to a socket if
-	FD_WRITE is sent but FD_CONNECT is not. Some strange problem with
-	either Win32 or a socket driver. [Bug 1664 1776]
-
-1999-04-09  Scott Redman  <redman@scriptics.com>
-
-	* unix/tclUnixNotfy.c: Fixed notifier deadlock situation when the pipe
-	used to talk back notifier thread is filled with data. When calling
-	the write() function to feed data down that pipe, unlock the
-	notifierMutex to allow the notifier to wake up again. Found as a
-	result of the focus.test for Tk hanging. [Bug 1700]
-
-1999-04-06  Scott Stanton  <stanton@scriptics.com>
-
-	* tests/unixNotfy.test: Fixed hang in tests when built with thread
-	support.
-
-	* tests/httpold.test: Fixed broken test that didn't wait long enough
-	for events to arrive.
-
-	* tests/unixInit.test: Fixed race condition in test.
-
-	* tests/unixInit.test:
-	* tests/fileName.test: Minor test nits.
-
-	* unix/tclUnixInit.c (TclpSetInitialEncodings): Fixed bad initial
-	encoding string.
-
-1999-04-06  Bryan Surles  <surles@scriptics.com>
-
-	* generic/tclVar.c:
-	* generic/tclEnv.c: Moved the "array set" C level code into a common
-	routine (TclArraySet). The TclSetupEnv routine now uses this API to
-	create an env array w/ no elements.
-
-	* generic/tclEnv.c:
-	* generic/tclWinInit.h:
-	* generic/tclUnixInit.h:
-	* generic/tclInt.h: Made the Env module I18N compliant. Changed the
-	FindVariable routine to TclpFindVariable, that now does a case
-	insensitive string comparison on Windows, and not on UNIX. [Bug 1299,
-	1500]
-
-1999-04-05  Scott Stanton  <stanton@scriptics.com>
-
-	* tests/io.test: Minor test cleanup.
-
-	* generic/tclEncoding.c (Tcl_CreateEncoding): Minor lint to make it
-	easier to compile on Digital-unix. [Bug 1659]
-
-	* unix/configure.in:
-	* unix/tclUnixPort.h: Applied patch for OS/390 to handle lack of
-	sys/param.h. [Bug 1725]
-
-	* unix/configure.in: Fixed BSD/OS 4.* configuration to support shared
-	libraries properly. [Bug 1730]
-
-1999-04-05  Scott Redman  <redman@scriptics.com>
-
-	* win/tclWinDde.c: decrease timeout value for DDE calls to 30k. [Bug
-	1639]
-
-	* generic/tcl.decls:
-	* generic/tcl.h:
-	* generic/tclDecls.h:
-	* generic/tclInt.decls:
-	* generic/tclInt.h:
-	* generic/tclIntDecls.h:
-	* generic/tclStubInit.c:
-	* generic/tclUtil.c: Added more functions to the Tcl stubs table,
-	including all Tcl_ functions not already in it (except Cmd functions)
-	and Tcl_GetCwd() and Tcl_Chdir() (new functions).
-
-	* tests/safe.test:
-	* doc/safe.n:
-	* generic/tclBasic.c:
-	* library/safe.tcl: The encoding command is not safe as-is, so create
-	a safe alias to mask out the "encoding system <name>" but allow all
-	other uses including "encoding system". Added test cases and updated
-	the man page for Safe Tcl.
-
-1999-04-05  Scott Stanton  <stanton@scriptics.com>
-
-	* tests/winTime.test:
-	* win/tclWinTime.c: Fixed crash in clock command that occurred when
-	manipulating negative time values in timezones east of GMT. [Bug
-	1142, 1458]
-
-	* tests/platform.test:
-	* tests/fileName.test: Fixed broken tests.
-
-	* generic/tclFileName.c: Moved global regexps into thread local
-	storage.
-
-	* tests/socket.test: Changed so tests don't reuse sockets, since
-	Windows is slow to release sockets.
-
-	* win/tclWinConsole.c:
-	* win/tclWinPipe.c:
-	* win/tclWinSerial.c: Fixed race condition where background threads
-	were terminated while they still held a lock in the notifier.
-
-1999-04-02  Scott Stanton  <stanton@scriptics.com>
-
-	* tests/http.test: Fixed bad test initialization code.
-
-	* generic/tclThreadTest.c (ThreadExitProc): Fixed bug where static
-	memory was being returned instead of a dynamically allocated result in
-	error cases.
-
-1999-04-02  Scott Redman  <redman@scriptics.com>
-
-	* doc/dde.n:
-	* tools/tcl.wse.in:
-	* win/makefile.vc:
-	* win/pkgIndex.tcl:
-	* win/tclWinDde.c: Add new DDE package, code removed from Tk now
-	separated into its own package. Changed DDE-based send code into "dde
-	eval" command. Can be loaded into tclsh (not just wish). Windows only.
-
-1999-04-02  Scott Stanton  <stanton@scriptics.com>
-
-	* tests/expr.test:
-	* tests/for-old.test:
-	* tests/for.test:
-	* tests/foreach.test:
-	* tests/format.test:
-	* tests/httpold.test:
-	* tests/if.test:
-	* tests/init.test:
-	* tests/interp.test:
-	* tests/while.test: Added some tests for known bugs (marked with
-	knownBug constraint), and cleaned up a few bad tests.
-
-	* generic/regc_locale.c:
-	* generic/regcustom.h:
-	* generic/tcl.decls:
-	* generic/tclCmdIL.c:
-	* generic/tclCmdMZ.c:
-	* generic/tclInt.h:
-	* generic/tclRegexp.c:
-	* generic/tclScan.c:
-	* generic/tclTest.c:
-	* generic/tclUtf.c:
-	* win/tclWinFCmd.c:
-	* win/tclWinFile.c: Made various Unicode utility functions public. The
-	following functions were made public and added to the stubs table:
-		Tcl_UtfToUniCharDString, Tcl_UniCharToUtfDString,
-		Tcl_UniCharLen, Tcl_UniCharNcmp, Tcl_UniCharIsAlnum,
-		Tcl_UniCharIsAlpha, Tcl_UniCharIsDigit, Tcl_UniCharIsLower,
-		Tcl_UniCharIsSpace, Tcl_UniCharIsUpper, Tcl_UniCharIsWordChar
-
-1999-04-01  Scott Stanton  <stanton@scriptics.com>
-
-	* tests/registry.test:
-	* win/tclWinReg.c: Internationalized the registry code. It now uses
-	Unicode interfaces on NT. [Bug 1197]
-
-	* tests/parse.test:
-	* generic/tclParse.c: Fixed crash due to multiple frees in parser
-	during error cleanup when parsing commands with more tokens than will
-	fit in the static area of the parse structure. [Bug 1681]
-
-	* generic/tclInt.h: Removed duplicate declarations.
-
-	* generic/tclInt.decls:
-	* generic/tcl.decls: Added Tcl_WinUtfToTChar and Tcl_WinTCharToUtf to
-	the tclPlat table.
-
-1999-04-01  Scott Redman  <redman@scriptics.com>
-
-	* generic/tcl.decls:
-	* generic/tcl.h:
-	* generic/tclBasic.c:
-	* generic/tclDecls.h:
-	* generic/StubInit.c:
-	* tools/genStubs.tcl:
-	* unix/Makefile.in:
-	* win/makefile.vc: Applied patch from Jan Nijtmans to fix Ultrix
-	multiple symbol definition problem. Now, even Tcl includes a copy of
-	the Tcl stub library. Also fixed TCL_MEM_DEBUG mode (for Tk).
-
-1999-03-31  Scott Redman  <redman@scriptics.com>
-
-	* win/tclWinConsole.c: WinNT has a bug when reading a single character
-	from the console. Rewrote the code for the console to read an entire
-	line at a time using the reader thread.
-
-1999-03-30  Scott Stanton  <stanton@scriptics.com>
-
-	* unix/Makefile.in: Removed trailing backslash that broke the "depend"
-	target.
-
-	* unix/tclUnixInit.c (TclpSetInitialEncodings): Changed to avoid
-	calling setlocale(). We now look directly at env(LANG) and
-	env(LC_CTYPE) instead. [Bug 1636]
-
-	* generic/tclFileName.c:
-	* generic/tclDecls.h:
-	* generic/tcl.decls: Removed CONST from Tcl_JoinPath and
-	Tcl_TranslateFileName because it changes the signature of Tcl_JoinPath
-	in an incompatible manner.
-
-	* generic/tclInt.h:
-	* generic/tclLoad.c (TclFinalizeLoad):
-	* generic/tclEvent.c (Tcl_Finalize): Defer unloading of loadable
-	modules until all exit handlers have been invoked. [Bug 998, 1273,
-	1573, 1593]
-
-1999-03-29  Scott Stanton  <stanton@scriptics.com>
-
-	* generic/tclFileName.c:
-	* generic/tclDecls.h:
-	* generic/tcl.decls: Added CONST to Tcl_JoinPath and
-	Tcl_TranslateFileName.
-
-1999-03-29  Scott Redman  <redman@scriptics.com>
-
-	* tools/genStubs.tcl:
-	* unix/configure.in:
-	* unix/Makefile.in:
-	* win/makefile.vc:
-	* generic/tcl.h:
-	* generic/tclBasic.c:
-	* generic/tclDecls.h:
-	* generic/tclIntDecls.h:
-	* generic/tclPlatDecls.h:
-	* generic/tclIntPlatDecls.h: Removed the stub functions and changed
-	the stub macros to just use the name without params. Pass &tclStubs
-	into the interp (don't use tclStubsPtr because of collisions with the
-	stubs on Solaris).
-
-1999-03-27  Scott Redman  <redman@scriptics.com>
-
-	* win/makefile.bc: Removed makefile for Borland compiler, no longer
-	supported.
-
-1999-03-26  Scott Redman  <redman@scriptics.com>
-
-	* win/tclWinSerial.c:
-	* win/tclWinConsole.c:
-	* win/tclWinPipe.c: Don't close the Win32 handle for a channel if it's
-	a stdio handle (GetStdHandle()) during shutdown of a thread to prevent
-	it from destroying the stdio of other threads.
-
-1999-03-26  Suresh Ankolekar  <suresh@scriptics.com>
-
-	* unix/configure.in: --nameble-shared is now the default and build Tcl
-	as a shared library; specify --disable-shared to build a static Tcl
-	library and shell.
-
-1999-03-25  Scott Stanton  <stanton@scriptics.com>
-
-	* tests/interp.test:
-	* generic/tclInterp.c (AliasObjCmd): Changed so aliases are invoked at
-	current scope in the target interpreter instead of at the global
-	scope. This was an incompatibility introduced in 8.1 that is being
-	removed. [Bug 1153, 1556]
-
-	* library/encoding/big5.enc:
-	* library/encoding/gb2312.enc:
-	* tools/encoding/big5.enc:
-	* tools/encoding/gb2312.enc: Added ASCII to big5 and gb2312 encodings.
-	[Bug 632]
-
-	* generic/tclPkg.c (Tcl_PkgRequireEx): Fixed broken clientData
-	initialization in package code.
-
-	* unix/Makefile.in (dist): Added tcl.decls and tclInt.decls to source
-	distribution. [Bug 1571]
-
-	* doc/Thread.3: Updated documentation of Tcl_MutexLock to indicate
-	that the recursive locking behavior is undefined. On Windows, it does
-	not block, on Unix it deadlocks. [Bug 1275]
-
-1999-03-24  Scott Stanton  <stanton@scriptics.com>
-
-	* tests/execute.test:
-	* generic/tclExecute.c (TclExecuteByteCode): Fixed expression code
-	that incorrectly returned floating point values for integers if the
-	internal rep happened to be a double. Now we check to see if the
-	object has a string rep that looks like an integer before using the
-	double internal rep. [Bug 1516]
-
-1999-03-24  Scott Redman  <redman@scriptics.com>
-
-	* generic/tclAlloc.c:
-	* generic/tclEncoding.c:
-	* generic/tclProc.c:
-	* unix/tclUnixTime.c:
-	* win/tclWinSerial.c: Fixed compilation warnings/errors for VC++ 5.0
-	and 6.0 and HP-UX native compiler without -Aa or -Ae. [Bug 1323 1518
-	1324 1583 1585 1586]
-
-	* win/tclWinSock.c: Make sockets thread-safe on Windows. The current
-	implementation uses windows to handle events on the socket, one for
-	each thread (thread local storage). Previously, there was only one
-	window shared between threads, which didn't work. [Bug 1326]
-
-1999-03-23  Scott Stanton  <stanton@scriptics.com>
-
-	* tools/tcl.wse: Fixed file association to look in the right place for
-	the wish icon. [Bug 1544]
-
-	* tests/winNotify.test:
-	* tests/ioCmd.test:
-	* tests/event.test: Changed to use new style conditionals.
-
-	* tests/encoding.test: Fixed nonportable test.
-
-	* unix/dltest/configure.in:
-	* unix/dltest/Makefile.in: Added missing DBGX macros. [Bug 1564]
-
-	* tests/winNotify.test:
-	* mac/tclMacNotify.c:
-	* win/tclWinNotify.c:
-	* unix/tclUnixNotfy.c:
-	* generic/tclNotify.c: Added a new Tcl_ServiceModeHook interface that
-	is invoked whenever the service mode changes. This is needed to allow
-	the Windows notifier to create a communication window the first time
-	Tcl is about to enter an external modal event loop instead of at
-	startup time. This will avoid the various problems that people have
-	been seeing where the system hangs when tclsh is running outside of
-	the event loop. [Bug 783]
-
-	* generic/tclInt.h:
-	* generic/tcl.decls: Renamed TclpAlertNotifier back to
-	Tcl_AlertNotifier since it is part of the public notifier driver API.
-
-1999-03-23  Scott Redman  <redman@scriptics.com>
-
-	* win/tclWinSerial.c: Fixed problem with fileevent on the serial port
-	and nonblocking mode. Gets no longer hangs, fileevents fire whenever
-	there is any character data on the port.
-
-	* tests/winConsole.test:
-	* win/tclWinConsole.c: Fixed problem with fileevents and gets from a
-	console stdin. Previously, fileevents were firing before an entire
-	line was available for reading, which meant that when you did a gets
-	or read, it blocked (even in nonblocking mode). Now, it should work
-	the same as Unix: fileevents fire when an entire line is ready, and
-	gets and read do not block in non-blocking mode. Added an interactive
-	test case to check for this.
-
-1999-03-22  Scott Stanton  <stanton@scriptics.com>
-
-	* tests/reg.test:
-	* generic/regc_color.c: Applied regexp bug fix from Henry Spencer.
-
-1999-03-19  Scott Redman  <redman@scriptics.com>
-
-	* generic/tclCmdIL.c: Fixed the initialization of an array so that the
-	Sun 5.0 C compiler wouldn't complain.
-
-	* unix/configure.in: Added support for --enable-64bit. For now, this
-	is only supported on Solaris 7 64bit (SunOS 5.7) using the Sun
-	compiler (not gcc).
-
-1999-03-18  Scott Stanton  <stanton@scriptics.com>
-
-	* win/tclWinChan.c (TclpOpenFileChannel, Tcl_MakeFileChannel): Changed
-	to only test for console or comm handles when the type is
-	FILE_TYPE_CHAR to avoid useless tests on simple files. Also reordered
-	tests so consoles are tested first as this is more common.
-
-	* win/makefile.vc: Regularized usage of mkd and rmd and rm.
-
-	* library/encoding/shiftjis.enc:
-	* tools/encoding/shiftjis.txt: Missing/incorrect characters in
-	shift-jis table. [Bug 1008, 1526]
-
-	* generic/tclInt.decls:
-	* generic/tcl.decls: Eliminated use of "string" and "list" from
-	argument lists to avoid conflicts with C++ STL. [Bug 1181]
-
-	* win/tclWinFile.c (TclpMatchFiles): Changed to ignore the
-	FS_CASE_IS_PRESERVED bit and always return exactly what we get from
-	the system.
-
-1999-03-17  Scott Stanton  <stanton@GASPODE>
-
-	* win/README.binary:
-	* win/README:
-	* unix/configure.in:
-	* generic/tcl.h:
-	* README: Updated version to 8.1b3.
-
-1999-03-14  Scott Stanton  <stanton@GASPODE>
-
-	* win/tclWinConsole.c:
-	* win/tclWinPipe.c:
-	* win/tclWinSerial.c: Changed so channel drivers wait for the
-	reader/writer threads to exit before returning during a close
-	operation. This ensures that the main thread is the last thread to
-	exit, so the process return value is set properly.
-
-	* generic/tclIntDecls.h:
-	* generic/tclIntPlatDecls.h:
-	* generic/tclIntPlatStubs.c:
-	* generic/tclIntStubs.c:
-	* generic/tclPlatDecls.h:
-	* generic/tclPlatStubs.c:
-	* generic/tclStubInit.c:
-	* generic/tclStubs.c: Fixed bad eol characters.
-
-	* generic/tclInt.decls: Changed "const" to "CONST" in declarations for
-	better portability.
-
-	* generic/tcl.decls: Renamed panic and panicVA to Tcl_Panic and
-	Tcl_PanicVA in the stub files.
-
-	* generic/tclInterp.c (Tcl_MakeSafe): Remove tcl_platform(user) from
-	safe interps.
-
-1999-03-11  Scott Stanton  <stanton@GASPODE>
-
-	* unix/Makefile.in:
-	* unix/configure.in: Include compat files in the stub library in
-	addition to the main library. Compat files are now built for dynamic
-	use in all cases.
-
-	* generic/tcl.h: Changed magic number so it doesn't match the plus
-	patch, at Jan's request.
-
-	* unix/tclConfig.sh.in:
-	* unix/dltest/Makefile.in:
-	* unix/dltest/configure.in:
-	* unix/dltest/pkga.c:
-	* unix/dltest/pkgb.c:
-	* unix/dltest/pkgc.c:
-	* unix/dltest/pkgd.c:
-	* unix/dltest/pkge.c:
-	* unix/dltest/pkgf.c: Changed package tests to build against the stubs
-	library.
-
-1999-03-10  Scott Stanton  <stanton@GASPODE>
-
-	* generic/tcl.h:
-	* generic/tcl.decls: Changed Tcl_ReleaseType from an enum to macros so
-	it can be used in .rc files. Added Tcl_GetString.
-
-	* mac/tclMacNotify.c:
-	* generic/tclNotify.c:
-	* generic/tclInt.h:
-	* win/tclWinNotify.c:
-	* generic/tcl.h: Renamed Tcl_AlertNotifier to TclpAlertNotifier.
-
-	* generic/tclInt.decls: Added TclWinAddProcess to make it possible for
-	expect to use Tcl_WaitForPid(). This patch is from Gordon Chaffee.
-
-	* mac/tclMacPort.h:
-	* win/tclWinInit.c:
-	* unix/tclUnixPort.h:
-	* generic/tclAsync.c: Added TclpAsyncMark to fix bug in async handling
-	on Windows where async events don't wake up the event loop. This patch
-	comes from Gordon Chaffee.
-
-	* generic/tcl.decls: Fixed declarations of reserved slots.
-
-1999-03-10  Scott Redman  <redman@scriptic.com>
-
-	* generic/tclCompile.h: Ensure that the ByteCode struct is binary
-	compatible with the version in 8.0.6.
-
-	* generic/tcl.h:
-	* generic/tclBasic.c: Add Tcl_GetVersion() function to the public C
-	API to allow programs to check the version number of the Tcl library
-	at runtime. Also added an enum to clarify the release level (alpha,
-	beta, final).
-
-1999-03-09  Scott Stanton  <stanton@GASPODE>
-
-	* Integrated changes from Tcl 8.0 including:
-		stubs mechanism
-		configure patches from Jan Nijtmans
-		rename of panic to Tcl_Panic
-
-1999-03-08  Lee Bernhard  <lfb@scriptics.com>
-
-	* win/tclWin32Dll.c: Removed Dll instance from thread-local storage.
-
-1999-03-08  Scott Stanton  <stanton@GASPODE>
-
-	* generic/tcl.h: Moved Tcl_Mutex, etc. macros above the inclusion of
-	tclDecls.h to avoid macro conflicts.
-
-	* generic/tclInt.h:
-	* generic/regc_color.c:
-	* generic/regcomp.c:
-	* generic/tclCmdIL.c:
-	* generic/tclCmdAH.c:
-	* generic/tclIOCmd.c:
-	* generic/tclParse.c:
-	* generic/tclStringObj.c:
-	* unix/tclUnixNotfy.c: Cleaned up various compiler warnings,
-	eliminated UCHAR bugs.
-
-	* unix/tclUnixNotfy.c:
-	* unix/tclUnixThrd.c:
-	* generic/tclThreadTest.c:
-	* mac/tclMacThrd.c: Changed TclpCondition*() to Tcl_Condition*().
-
-	* INTEGRATED PATCHES FROM 8.0.6:
-
-	* generic/tcl.decls:
-	* generic/tcl.h:
-	* generic/tclBasic.c:
-	* generic/tclDecls.h:
-	* generic/tclInt.decls:
-	* generic/tclInt.h:
-	* generic/tclIntDecls.h:
-	* generic/tclIntPlatDecls.h:
-	* generic/tclIntPlatStubs.c:
-	* generic/tclIntStubs.c:
-	* generic/tclPlatDecls.h:
-	* generic/tclPlatStubs.c:
-	* generic/tclStubInit.c:
-	* generic/tclStubLib.c:
-	* generic/tclStubs.c:
-	* tools/genStubs.tcl:
-	* unix/configure.in:
-	* unix/Makefile.in:
-	* unix/tclConfig.sh.in:
-	* win/makefile.vc:
-	* win/tclWinPort.h: Added Tcl stubs implementation. There are now two
-	new macros USE_TCL_STUBS and USE_TCL_STUB_PROCS that enable use of
-	stubs and disable stub macros respectively. All of the public and
-	private function declarations from tcl.h and tclInt.h have moved into
-	the *.decls files and the *Stubs.c and *Decls.h files are generated
-	using the genStubs.tcl script.
-
-	* unix/Makefile.in:
-	* unix/configure.in:
-	* unix/ldAix: Enhanced AIX shared library support.
-
-	* win/tclWinSock.c: Removed a bunch of extraneous PASCAL FAR
-	attributes from internal functions.
-
-	* win/tclWinReg.c: Changed registry package to use stubs mechanism so
-	it no longer depends on the specific version of Tcl.
-
-	* doc/AddErrInfo.3:
-	* doc/Eval.3:
-	* doc/PkgRequire.3:
-	* doc/SetResult.3:
-	* doc/StringObj.3:
-	* generic/tcl.h:
-	* generic/tclBasic.c:
-	* generic/tclPanic.c:
-	* generic/tclStringObj.c:
-	* generic/tclUtil.c:
-	* unix/mkLinks: Added va_list versions of all VARARGS functions so
-	they can be invoked from the stub functions.
-
-	* doc/package.n:
-	* doc/PkgRequire.3:
-	* generic/tclPkg.c: Added Tcl_PkgProvideEx, Tcl_RequireEx,
-	Tcl_PresentEx, and Tcl_PkgPresent. Added "package present" command.
-
-	* generic/tclFileName.c:
-	* mac/tclMacFile.c:
-	* mac/tclMacShLib.exp:
-	* unix/tclUnixFile.c:
-	* win/tclWinFile.c: Changed so TclGetUserHome is defined on all
-	platforms, even though it is currently a noop on mac and windows, and
-	renamed it to TclpGetUserHome.
-
-	* generic/tclPanic.c:
-	* generic/panic.c: Renamed panic to Tcl_Panic.
-
-1999-02-25  Scott Redman  <redman@scriptics.com>
-
-	* win/makefile.vc: Added tclWinConsole.c and tclWinSerial.c
-
-	* win/tclWinConsole.c: New code to properly deal with fileevents and
-	nonblocking mode on consoles.
-
-	* win/tclWinSerial.c: New code to properly deal with fileevents and
-	nonblocking mode on serial ports.
-
-	* win/tclWinPipe.c:
-	* win/tclWinPort.h: Exported functions to allow creation of pipe
-	channels from tclWinChan.c
-
-	* win/tclWinChan.c: Check the type of a channel, including for the
-	standard (stdin/stdout/stderr), and use the correct channel type to
-	create the channel (file, serial, console, or pipe).
-
-1999-02-11  Scott Stanton  <stanton@GASPODE>
-
-	* README:
-	* generic/tcl.h:
-	* win/README.binary:
-	* win/README:
-	* unix/configure.in:
-	* mac/README: Updated version numbers to 8.1b2.
-
-1999-02-10  Scott Stanton  <stanton@GASPODE>
-
-	* library/auto.tcl: Fixed auto_mkindex so it handles .tbc files. Did
-	some general cleanup to handle bad eval statements that didn't use
-	"list".
-
-	* unix/mkLinks:
-	* doc/SetVar.3:
-	* generic/tcl.h:
-	* generic/tclVar.c: Restored Tcl_ObjGetVar2 and Tcl_ObjSetVar2 from
-	8.0. Renamed Tcl_Get/SetObjVar2 to Tcl_GetVar2Ex and Tcl_SetVar2Ex.
-
-1999-02-10  Scott Stanton  <stanton@GASPODE>
-
-	INTEGRATED PATCHES FROM 8.0.5b2:
-
-	* test/winPipe.test: Changed to remove echoArgs.tcl temporary file
-	when done.
-
-	* tests/cmdAH.test:
-	* generic/tclFileName.c (TclGetExtension): Changed behavior so the
-	split happens at the last period in the name instead of the first
-	period of the last run of periods. So, "foo..o" is split into "foo."
-	and ".o" now. [Bug 1126]
-
-	* win/makefile.vc: Added better support for paths with spaces in the
-	name. Added .lib and support .dlls to the install-binaries target.
-	Added generate of a pkgIndex.tcl script to the install-libraries
-	target.
-
-	* win/tclAppInit.c:
-	* unix/tclAppInit.c:
-	* mac/tclMacAppInit.c:
-	* generic/tclTest.c: Changed some EXTERN declarations to extern since
-	they are not defining exported interfaces. This avoids generating
-	useless declspec() attributes and makes the windows makefile simpler.
-
-	* generic/tcl.h: Moved Tcl_AppInit declaration to end and cleared out
-	TCL_STORAGE_CLASS so it is not declared with a declspec().
-
-	* tests/interp.test:
-	* generic/tclInterp.c (DeleteAlias): Changed to use
-	Tcl_DeleteCommandFromToken so we handle renames properly. This avoids
-	senseless panic. [Bug 736]
-
-	* unix/tclUnixChan.c:
-	* win/tclWinSock.c:
-	* doc/socket.n: Applied Gordon Chaffee's patch to handle failures
-	during asynchronous socket connection operations. This adds a new
-	"-error" fconfgure option to socket channels. [Bug 893]
-
-	* generic/tclProc.c:
-	* generic/tclNamesp.c:
-	* generic/tclInt.h:
-	* generic/tclCmdIL.c:
-	* generic/tclBasic.c:
-	* generic/tclVar.c: Applied patch from Viktor Dukhovni to rationalize
-	TCL_LEAVE_ERR_MSG behavior when creating variables.
-
-	* generic/tclVar.c: Fixed bug in namespace tail computation. Fixed bug
-	where upvar could resurrect a namespace variable whose namespace had
-	been deleted.
-
-	* generic/tclCompile.c (TclCompileExprCmd): Eliminated yet another
-	bogus optimization in expression compilation.
-
-	* unix/configure.in: Added branch for BSD/OS-4* to shared library case
-	statement. [Bug 975]
-	Fixed to correctly handle IRIX 6.5 n32 library support. [Bug 1117]
-
-	* win/winDumpExts.c: Patched to be pickier about stripping @'s. [Bug
-	920]
-
-	* library/http2.0/http.tcl: Added catch around eof test in CopyDone
-	since the user may have already called http::reset. [Bug 1108]
-
-	* unix/configure.in: Changed Linux and IRIX to set SHLIB_LIBS to LIBS
-	so shared libraries are linked with the system libraries. [Bug 1018]
-
-	* generic/tclCompile.c (CompileExprWord): Fixed exception stack
-	overflow bug caused by missing statement. [Bug 928]
-
-	* generic/tclIOCmd.c:
-	* generic/tclBasic.c: Objectified the "open" command. [Bug 1113]
-
-	* generic/tclPosixStr.c (Tcl_ErrnoId, Tcl_ErrnoMsg): When using egcs,
-	ENOTSUP and EOPNOTSUPP are the same, so now we handle that case. [Bug
-	1137]
-
-	* library/init.tcl: Various small changes requested by Jan Nijtmans.
-	- If the variable $tcl_library contains the empty string, this empty
-	  string will be put in $auto_path. This is not useful at all, it only
-	  slows down later package processing.
-	- If the variable tcl_pkgPath is not set, the "unset __dir" fails.
-	  Thich makes init.tcl totally unusable. Better put a "catch" around
-	  it.
-	- In the function tcl_findLibraries, the "string match" function only
-	  works correctly if $tcl_patchLevel is in one of the forms "?.?a?",
-	  "?.?b?" or "?.?.?". Could a "regexp" be used instead, then it allows
-	  anything to be appended to the patchLevel string. And it is more
-	  efficient.
-	- The tclPkgSetup function assumes that if $type != "load" then the
-	  type must be "source". This needn't be true. Some users want to add
-	  their own setup types.
-	[RFE 1138] [Bug 978]
-
-	* win/tclWinReg.c:
-	* doc/registry.n: Added support for HKEY_PERFORMANCE_DATA and
-	HKEY_DYN_DATA keys. [Bug 1109]
-
-	* win/tclWinInit.c (TclPlatformInit): Added code to ensure tcl_pkgPath
-	is set to "" when no registry entry is found. [Bug 978]
-
-1999-02-01  Scott Stanton  <stanton@GASPODE>
-
-	* generic/tclBasic.c:
-	* generic/tclCmdAH.c:
-	* generic/tclCmdIL.c:
-	* generic/tclCmdMZ.c:
-	* generic/tclExecute.c:
-	* generic/tclHistory.c:
-	* generic/tclIO.c:
-	* generic/tclIOUtil.c:
-	* generic/tclInterp.c:
-	* generic/tclMain.c:
-	* generic/tclNamesp.c:
-	* generic/tclParse.c:
-	* generic/tclProc.c:
-	* generic/tclTest.c:
-	* generic/tclTimer.c:
-	* generic/tcl.h: Made eval interfaces compatible with 8.0 by renaming
-	Tcl_EvalObj to Tcl_EvalObjEx, renaming Tcl_Eval2 to Tcl_EvalEx and
-	restoring Tcl_EvalObj and Tcl_GlobalEvalObj interfaces so they match
-	Tcl 8.0.
-
-1999-01-28  Scott Stanton  <stanton@GASPODE>
-
-	* Merged Tcl 8.0.5b1 changes.
-
-	* generic/tclUtil.c (Tcl_DStringSetLength): Changed so the buffer
-	overallocates in a manner similar to Tcl_DStringAppend. This should
-	improve performance for TclUniCharToUtfDString.
-
-1998-12-11    === Tcl 8.1b1 Release ===
-
-1998-12-10  Scott Stanton  <stanton@GASPODE>
-
-	* Fixed lots of files that used TCL_THREAD instead of TCL_THREADS.
-
-	* generic/tclEncoding.c (Tcl_FreeEncoding): Moved most of the code
-	into a static FreeEncoding routine that does not grab the
-	encodingMutex to avoid deadlocks/races when called from other routines
-	that already have the mutex.
-
-1998-12-09  Scott Stanton  <stanton@GASPODE>
-
-	* library/msgcat1.0/msgcat.tcl: Fixed bad export list, fixed so all
-	locale strings are converted to lower case, including file names.
-
-	* generic/regcomp.c (makescan): Fixed bug in longest match case that
-	caused anchored patterns to fail. [Bug 897]
-
-1998-12-08  Scott Stanton  <stanton@GASPODE>
-
-	* library/msgcat1.0/msgcat.tcl: changed mc to invoke mcunknown in the
-	calling context, changed locale lookups to be case insensitive
-
-1998-12-07  Scott Stanton  <stanton@GASPODE>
-
-	* generic/tclAlloc.c (TclpRealloc): Fixed a memory allocation bug
-	where big blocks that were reallocated into a different heap location
-	were not being placed into the bigBlocks list. [Bug 933]
-
-	* tests/msgcat.test: Added message catalog test suite.
-
-	* library/msgcat1.0/msgcat.tcl: minor bug fixes, integrated latest
-	changes from Mark Harrison.
-
-1998-12-04  Scott Stanton  <stanton@GASPODE>
-
-	* library/msgcat1.0/msgcat.tcl: Changed code to conform to Tcl coding
-	standards. Changed to use file join for portability.
-
-	* library/msgcat1.0: Added initial implementaion of Tcl message
-	catalog package contributed by Mark Harrison.
-
-1998-12-03  Scott Stanton  <stanton@GASPODE>
-
-	* win/tclWinPipe.c (BuildCommandLine): Fixed bug that kept arguments
-	containing spaces from being properly quoted.
-
-	* tests/defs: Changed so auto_path is set to only contain the Tcl
-	library directory. This keeps the tests from accidentally picking up
-	stuff in installed packages.
-
-	* generic/tclUtil.c (Tcl_StringMatch): Changed to match 8.0 behavior
-	in corner case where there is no closing bracket.
-
-1998-12-02  Scott Stanton  <stanton@GASPODE>
-
-	* win/tclWinPipe.c (TclpCreateCommandChannel): Changed reader/writer
-	threads to have THREAD_PRIORITY_HIGHEST so they will have a chance to
-	run whenever there is something to do.
-
-	* generic/tclIO.c (WriteBytes, WriteChars): Fixed so extraneous
-	flushes do not happen in line mode.
-	(TranslateOutputEOL): Made translation more efficient in line mode and
-	fixed a buffer overflow bug in CRLF translation. [Bug 887]
-
-1998-12-02  Brent Welch  <welch@SAGE>
-
-	* Updated patchlevel to 8.1b1
-
-1998-12-02  Scott Stanton  <stanton@GASPODE>
-
-	* generic/regc_color.c (subcolor): Added check for error case to avoid
-	an out of bounds array reference.
-
-	* generic/tclCmdAH.c (Tcl_EncodingObjCmd): Changed to avoid using
-	Tcl_DStringResult because it is not binary clean.
-
-	* generic/tclParse.c (Tcl_ParseCommand): Fixed bug in comment parsing
-	where a trailing comment looked like an incomplete command.
-
-1998-12-02  Brent Welch  <welch@SAGE>
-
-	* Merged changes from 8.0.4, especially the new pkg_mkIndex
-
-1998-12-01  Scott Stanton  <stanton@GASPODE>
-
-	* generic/tclIO.c (Tcl_ReadChars): Added a call to UpdateInterest so
-	we don't block when there is data sitting in the buffers.
-
-	* generic/tclTest.c (TestevalobjvObjCmd): Updated for EvalObjv change.
-
-	* tests/parse.test: Updated tests for EvalObjv change.
-
-	* generic/tclParse.c (EvalObjv, Tcl_EvalObjv): Changed Tcl_EvalObjv
-	interface to remove string and length arguments, preserved original
-	interface as EvalObjv for internal use.
-
-	* generic/tcl.h: Changed Tcl_EvalObjv interface to remove string and
-	length arguments.
-
-	* doc/Eval.3: Updated documentation for Tcl_EvalObjv to remove string
-	and length arguments.
-
-	* generic/tclCompCmds.c (TclCompileForeachCmd): Fixed code that
-	corrupted the exceptDepth value in the compile environment when
-	foreach failed to compile inline. [Bug 884]
-
-	* library/encoding/euc-kr.enc:
-	* library/encoding/ksc5601.enc:
-	* tools/encoding/ksc5601.txt:
-	* unix/tclUnixInit.c: Added support for Korean EUC.
-
-	* win/tclWinChan.c (TclpGetDefaultStdChannel): added check for a
-	failure during Tcl_MakeFileChannel.
-
-1998-11-30  Scott Stanton  <stanton@GASPODE>
-
-	* unix/tclUnixNotfy.c (Tcl_WaitForEvent): Fixed hang that occurs when
-	trying to close a pipe that is currently being waited on by the
-	notifier thread. [Bug 607]
-
-	* unix/tclUnixFCmd.c (GetPermissionsAttribute): Increase size of
-	returnString buffer to avoid overflow. [Bug 584]
-
-	* generic/tclThreadTest.c (TclThreadSend): Fixed memory leak due to
-	use of TCL_VOLATILE instead of TCL_DYNAMIC.
-
-	* generic/tclThread.c (TclRememberSyncObject): Fixed memory leak
-	caused by failure to reuse condition variables.
-
-	* unix/tclUnixNotfy.c (Tcl_AlertNotifier, Tcl_WaitForEvent,
-	(NotifierThreadProc, Tcl_InitNotifier): Fixed race condition caused by
-	incorrect use of condition variables when sending messages between
-	threads. [Bug 607]
-
-	* generic/tclTestObj.c (TeststringobjCmd): MAX_STRINGS was off by one
-	so the strings array was too small.
-
-	* generic/tclCkalloc.c (Tcl_DbCkfree): Moved mutex lock so
-	ValidateMemory is done inside the mutex to avoid a race condition when
-	validate_memory is enabled. [Bug 880]
-
-1998-11-23  Scott Stanton  <stanton@GASPODE>
-
-	* regexec.c: more performance tuning from Henry Spencer.
-
-1998-11-17  Scott Stanton  <stanton@GASPODE>
-
-	* tclScan.c: moved "scan" implementation out of tclCmdMZ.c and added
-	Unicode support. This required a complete reimplementation of the
-	command to avoid using scanf(), which isn't Unicode aware. Two new
-	features were added in the process: %n to return the current number of
-	characters consumed, and XPG3-style %n$ argument order specifiers
-	similar to those provided by the "format" command. [Bug 833]
-
-	* tclAlloc.c: changed so allocated memory is always 8-byte aligned to
-	improve memory performance and to ensure that it will work on systems
-	that don't like accessing 4-byte aligned values (e.g. Solaris and
-	HP-UX). [Bug 834]
-
-1998-11-06  Scott Stanton  <stanton@GASPODE>
-
-	* tclVar.c (TclGetIndexedScalar): Fixed bug 796, var name was getting
-	lost before being passed to CallTraces.
-
-1998-10-21  Scott Stanton  <stanton@GASPODE>
-
-	* added "encoding" command
-
-	* Moved internal regexp declarations from tclInt.h to tclRegexp.h
-
-	* integrated regexp updates from Henry Spencer
-
-1998-10-15  Scott Stanton  <stanton@GASPODE>
-
-	* tclUtf.c: added Unicode character table support
-
-	* tclInt.h: added TclUniCharIsWordChar
-
-	* tclCmdMZ.c (Tcl_StringObjCmd): added "totitle" subcommand, changed
-	"wordend" and "wordstart" to properly handle Unicode word characters
-	and connector punctuation
-
-1998-10-05  Scott Stanton  <stanton@GASPODE>
-
-	* auto.tcl, package.tcl: fixed SCCS strings
-
-	* tclIndex: updated index to reflect 8.1 files
-
-	* tclCompile.c (TclCompileScript): changed to avoid modifying the
-	input string in place because name lookup operations could have
-	arbitrary side effects
-
-	* tclInterp.c: added guard against deleting current interpreter
-
-	* tclMacFile.c, tclUnixFile.c, tclWinFile.c, tclFileName.c: added
-	warnings around code that modifies strings in place
-
-	* tclExecute.c: fixed off-by-one copying error, fixed merge bugs
-
-	* tclEvent.c: changed so USE_TCLALLOC is tested for value instead of
-	definition
-
-	* tclCompCmds.c: replaced SCCS strings, added warnings around code
-	that modifies strings in place
-
-	* interp.test: added test for interp deleting itself
-
-1998-09-30  Scott Stanton  <stanton@GASPODE>
-
-	* makefile.vc: fixed so TCL_LIBRARY is set before running tcltest
-
-	* tclWin32Dll.c: removed TclpFinalize, cleanup of merges
diff --git a/ChangeLog.2000 b/ChangeLog.2000
deleted file mode 100644
index 5b62351..0000000
--- a/ChangeLog.2000
+++ /dev/null
@@ -1,2539 +0,0 @@
-2000-12-14  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c:
-	* tests/expr-old.test: Re-wrote Tcl's [expr rand()] and [expr
-	srand($seed)] implementations, fixing a range error on some 64-bit
-	platforms. Added tests that detect the bug. The rewrite changes the
-	seed -> sequence map on 64-bit platforms, only for seed >= 2^31, a
-	slight incompatibility. [Bug 121072, Patch 102781]
-
-2000-12-10  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/init.tcl:
-	* library/msgcat/msgcat.tcl:
-	* library/msgcat/pkgIndex.tcl:
-	* library/opt/optparse.tcl:
-	* library/opt/pkgIndex.tcl: Where [uplevel] is used in a proc to
-	evaluate a Tcl built-in command in the caller's context, the built-in
-	commands are now fully namespace-qualified. This prevents problems
-	when the caller context is in a namespace where the built-in command
-	name has been used by a command in the namespace. (For example,
-	[::ns::set] might be called instead of the intended [::set]). [Bug
-	119422, Patch 102545]
-
-2000-12-09  Jeff Hobbs  <jhobbs@interwoven.com>
-
-	* win/tclWinTime.c (CalibrationThread): added lint return value to
-	prevent compiler warning. [Bug 125005]
-
-	* docs/scan.n:
-	* tests/scan.test:
-	* generic/tclScan.c (Tcl_ScanObjCmd): changed %o and %x to use strtoul
-	instead of strtol to correctly preserve scan<>format conversion of
-	large integers. [Patch 102663, Bug 124600]
-
-	* generic/tclExecute.c (TclExecuteByteCode): Commited patch fixing
-	handling of {!<boolean>} in expressions. [Patch 102702]
-
-2000-12-08  Jeff Hobbs  <jhobbs@interwoven.com>
-
-	* library/init.tcl: Added support for PATHEXT variable in auto_execok,
-	recognizing the proper set of executable extensions on Windows. [Patch
-	102719]
-
-2000-12-08  Andreas Kupries  <a.kupries@westend.com>
-
-	* generic/tclEncoding.c (LoadTableEncoding): Changed dangerous code to
-	something less critical. This fixes [Bug 119417], part A without
-	affecting the speed when loading encodings.
-
-2000-12-08  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/open.n: Added xref to fconfigure and advice on the opening of
-	binary files. Should help prevent a recurrence of bugs like [Bug
-	124558]
-
-2000-12-07  Jeff Hobbs  <jhobbs@interwoven.com>
-
-	* generic/tcl.h: added note about need to updated
-	library/dde/pkgIndex.tcl with minor version increment.
-
-	* library/dde/pkgIndex.tcl: updated to use 84 version to reflect the
-	makefile. Should probably be updated to use its real version at some
-	point. [Patch 102560, Bug 119421]
-
-2000-12-06  Eric Melski  <ericm@ajubasolutions.com>
-
-	* generic/tcl.h (attemptckalloc): Fixed typo for #define of
-	attemptckalloc (was defined to Tcl_AttempDbCkalloc, should have been
-	Tcl_AttemptDbCkalloc). [Bug 124384]
-
-	* generic/tclCkalloc.c: Added TCL_MEM_DEBUG versions of
-	Tcl_AttemptDbCkrealloc and Tcl_AttemptDbCkalloc. [Bug 124384].
-
-2000-11-24  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclExecute.c (TclExecuteByteCode): Logical negation "!"  can
-	now handle string booleans, provided those values are placed in
-	variables.
-
-	* tests/expr.test (expr-13.17): Check that [expr {!$var}] can negate
-	the string-versions of booleans "yes", "false", etc.
-
-	* library/tcltest/tcltest.tcl (getMatchingFiles,
-	(getMatchingDirectories):
-	* tools/man2html.tcl (doDir):
-	* tools/man2help.tcl (doDir):
-	* library/package.tcl (tclPkgUnknown,tclMacPkgSearch):
-	* library/safe.tcl (AddSubDirs): [glob] uses -directory instead of
-	unsafe [file join]. [Bug 123313]
-
-	* generic/tclIndexObj.c:
-	* generic/tclTestObj.c (TestindexobjCmd): Changed internal
-	representation of index objects to fix [Bug 119082]; fix shouldn't be
-	visible to outside world...
-
-	* generic/tclTest.c (TestGetIndexFromObjStructObjCmd):
-	* tests/indexObj.test: (indexObj-6.*) Added to test for presence of
-	[Bug 119082].
-
-2000-11-23  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclCmdIL.c (Tcl_LsortObjCmd): Fixed memory leak from [Bug
-	119398]
-
-	* library/init.tcl (unknown): Added specific level parameters to
-	all uplevel invokations to boost performance; didn't dare touch
-	the "namespace inscope" stuff though, since it looks sensitive
-	to me!  Should fix [Bug 123217], though testing is tricky...
-
-2000-11-21  Andreas Kupries  <a.kupries@westend.com>
-
-	All of the changes below are described in TIP #7 ~ Specification and
-	result from the application of the patch contained therein. Creator of
-	the patch is Kevin Kenny <kennykb@crd.ge.com>. The patch used here is
-	actually a bit different. Two MS specific constant values (format
-	FOOui64) were replaced with a more portable formatting of the values
-	and an additional cast to LONGLONG. My cross-compiling gcc was unable
-	to process the original form. [Patch 102459]
-
-	* tclWinTime.c: Add to the static data a set of variables that manage
-	the phase-locked techniques, including a ''CRITICAL_SECTION'' to guard
-	them so that multi-threaded code is stable.
-
-	* tclWinTime.c: Modify ''TclpGetSeconds'' to call ''TclpGetTime'' and
-	return the 'seconds' portion of the result. This change is necessary
-	to make sure that the two times are consistent near the rollover from
-	one second to another.
-
-	* tclWinTime.c: Modify ''TclpGetClicks'' to use TclpGetTime to
-	determine the click count as a number of microseconds.
-
-	* tclWinTime.c: Modify ''TclpGetTime'' to return the time as M*Q+B,
-	where Q is the result of ''QueryPerformanceCounter'', and M and B are
-	variables maintained by the phase-locked loop to keep the result as
-	close as possible to the system clock. The ''TclpGetTime'' call will
-	also launch the phase-lock management in a separate thread the first
-	time that it is invoked. If the performance counter is unavailable, or
-	if its frequency is not one of the two common 8254-compatible rates,
-	then ''TclpGetTime'' will return the result of ''ftime'' as it does in
-	Tcl 8.3.2.
-
-	* tclWinTime.c: Add the clock calibration procedure. The calibration
-	is somewhat complex; to save space, the reader is referred to the
-	reference implementation for the details of how the time base and
-	frequency are maintained.
-
-	* tclWinNotify.c: Modify ''Tcl_Sleep'' to test that the process has,
-	in fact, slept for the requisite time by calling ''TclpGetTime'' and
-	comparing with the desired time. Otherwise, roundoff errors may cause
-	the process to awaken early.
-
-	* tclWinTest.c: Add a ''testwinclock'' command. This command returns a
-	four element list comprising the seconds and microseconds portions of
-	the system clock and the seconds and microseconds portions of the Tcl
-	clock.
-
-	* winTime.test: Add to the test suite a test that makes sure that the
-	Tcl clock stays within 1.1 ms of the system clock over the duration of
-	the test.
-
-2000-11-21  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/global.n:
-	* doc/upvar.n:
-	* doc/variable.n: Improved documentation to mention that variables so
-	created are listed in [info locals] and added a few more cross-links
-	between these commands. [Bug 119387]
-
-2000-11-17  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/safe.test: (safe-4.3):
-	* generic/tclVar.c (TclLookupVar): Changed again. Now passes all the
-	tests, though one needed modifying since it required the wrong answer.
-	(Why on earth do we have inline modification of argument strings? This
-	sort of thing is horrendous to debug and doesn't work well in a
-	multithreaded environment!) [Bug 119192]
-
-	* tests/var.test: (var-1.19) If my attempts to fix the problem aren't
-	right yet, my attempts to describe it look pretty good to me...
-
-2000-11-16  Andreas Kupries  <a.kupries@westend.com>
-
-	* win/tclWinPort.h (line 69): Changed reference to winsock2.h into
-	winsock.h. This was a leftover from a foray into using winsock version
-	2 (History lesson from Scott Redman and Jeff Hobbs). This code was no
-	problem when compiling Tcl itself, but could trip extensions. [Bug
-	122568]
-
-2000-11-15  Jeff Hobbs  <jeff.hobbs@acm.org>
-
-	* unix/Makefile.in: removed bp.c references (hasn't existed in a long
-	time). Corrected 'make dist' to make dist with unversioned library
-	directories (same as out of cvs), so make install works correctly with
-	either source tree.
-
-2000-11-15  Jeff Hobbs  <jeff.hobbs@acm.org>
-
-	* generic/tclVar.c (TclLookupVar): reverted fix below as it broke all
-	other array unset error reporting.  Bug 119192 is still open.
-
-2000-11-15  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclVar.c (TclLookupVar): Changed references to part2 to use
-	elName instead in various error message generating spots. [Bug 119192]
-
-2000-11-03  David Gravereaux  <davygrvy@ajubasolutions.com>
-
-	* win/.cvsignore: Removed 'configure' from the glob list now that it's
-	included.
-
-2000-11-03  Jeff Hobbs  <hobbs@ajubasolutions.com>
-
-	8.4a2 RELEASE
-
-	* unix/Makefile.in (install-libraries, dist):
-	* win/makefile.vc (install-libraries):
-	* win/Makefile.in (install-libraries): updated to install unversioned
-	library directories into versioned directories.
-
-	* tools/tcl.wse.in: updated for unversioning of library dirs
-
-	* unix/mkLinks: updated mkLinks with latest doc updates
-
-	* doc/Tcl_Main.3: added docs for Tcl_SetMainLoop
-
-	* generic/tclStubInit.c:
-	* generic/tclDecls.h:
-	* generic/tcl.decls: added Tcl_SetMainLoop proc that allows people to
-	set a main loop that will run for tclsh.
-	* generic/tcl.h: added Tcl_MainLoopProc typedef
-	* generic/tclMain.c (Tcl_SetMainLoop, StdinProc, Prompt): new
-	StdinProc and Prompt static procs and Tcl_SetMainLoop stubs proc. The
-	first two handle a fileevent based prompt (taken from tkMain.c).
-	Tcl_SetMainLoop enables the interactive setting of a main loop
-	procedure. This enables Tk to be a loadable package.
-
-2000-11-02  David Gravereaux  <davygrvy@ajubasolutions.com>
-
-	* generic/tclEvent.c: tclLibraryPath Tcl_Obj didn't have a way to
-	share its data among threads. This caused Tcl_Init() to always fail in
-	threads. Added a way to pass the data around with a global char*.
-	[BUG: 5301]
-
-2000-11-02  Jeff Hobbs  <hobbs@ajubasolutions.com>
-
-	* unix/configure:
-	* unix/dltest/configure:
-	* win/configure:
-	* tools/configure: checked in configure scripts so people doing CVS
-	checkouts aren't required to have autoconf. Changes to configure.in in
-	the future will require the corresponding configure script to also be
-	re-autoconf'ed and checked in.
-
-	* win/makefile.vc:
-	* win/tcl.m4: makefile fixes for Win64 support
-
-	* generic/tclIndexObj.c (Tcl_GetIndexFromObjStruct): minor cast
-	changes.
-
-2000-11-01  Jeff Hobbs  <hobbs@ajubasolutions.com>
-
-	* unix/tcl.m4: removed use of -lbsd and -ldl for AIX-5.
-
-	* tests/subst.test: added tests for non-zero return code handling by
-	subst.
-	* generic/tclParse.c (Tcl_EvalEx): corrected handling of non-zero,
-	non-error return code cases for subst. [Bug 119829]
-
-	* generic/tclVar.c (TclVarTraceExists): Corrected excessive mem use
-	when info exists was called on a non-existent array element. [Bug
-	119213, 119336]
-
-2000-10-30  David Gravereaux  <davygrvy@ajubasolutions.com>
-
-	* win/configure.in:
-	* win/Makefile.in:
-	* win/makefile.vc:
-	* win/tcl.rc:
-	* win/tclsh.rc: Added logic to derive filenames better in the resource
-	scripts based on compile options.
-
-2000-10-30  Jeff Hobbs  <hobbs@ajubasolutions.com>
-
-	* unix/tclUnixInit.c: added default encoding map from "ja_JP.eucJP" to
-	"euc-jp". (takahashi)
-
-	* tests/clock.test: corrected clock-2.* test numbering
-
-	* unix/configure.in (SC_TCL_LINK_LIBS): removed code that was
-	commented out (it had been moved to tcl.m4's SC_TCL_LINK_LIBS
-	already).
-
-	* unix/tcl.m4: consolidated gettimeofday check for AIX.
-
-2000-10-27  Jeff Hobbs  <hobbs@ajubasolutions.com>
-
-	* unix/configure.in:
-	* unix/tcl.m4: added support for AIX-5.
-
-	* generic/tclIO.c (Tcl_NotifyChannel): removed #ifdef around code for
-	old channel structures, placed preserve/release around statePtr
-	* generic/tclIO.c (CloseChannel): the statePtr for a channel was not
-	being freed when the last channel in a stack was freed, causing a mem
-	leak.
-
-	* unix/tclUnixChan.c: updated channel types to strict
-	TCL_CHANNEL_VERSION_2 style to avoid compiler warnings. They work
-	either way, but this avoids compiler warnings (that worries people).
-
-2000-10-27  Jennifer Hom  <jenn@ajubasolutions.com>
-
-	* library/tcltest1.0/tcltest.tcl: Removed a cd into the test directory
-	in runAllTests that screwed up the temporary directory setting,
-	effectively preventing users from running tests on multiple platforms
-	at the same time.
-
-2000-10-26  David Gravereaux <davygrvy@ajubasolutions.com>
-
-	* win/tclWinFile.c (TclpMatchFilesTypes): NULL was being set to "attr"
-	which was a DWORD. Changed NULL to zero because a 'void *' can't be
-	set to a DWORD to avoid the compiler warning.
-
-2000-10-24  Jennifer Hom  <jenn@ajubasolutions.com>
-
-	* tests/all.tcl: Removed support for tcltest 1.0.
-
-	* tests/tcltest.test:
-	* library/tcltest1.0/tcltest.tcl:
-	* library/tcltest1.0/pkgIndex.tcl:
-	* docs/tcltest.n: Moved tcltest2 code so that it's the standard
-	version of tcltest. Removed all tcltest2 files (tests/tcltest2.test,
-	library/tcltest1.0/tcltest2.tcl, docs/tcltest2.n).
-
-2000-10-20  Jeff Hobbs  <hobbs@ajubasolutions.com>
-
-	* win/tclWinFile.c (TclpMatchFilesTypes): made the stat call only
-	occur when necessary (for 'glob' command). Significantly speeds up
-	glob command from 8.3. [BUG: 6216]
-
-2000-10-19  Jennifer Hom  <jenn@ajubasolutions.com>
-
-	* library/tcltest1.0/tcltest2.tcl:
-	* tests/tcltest2
-	* doc/tcltest2.n: Code and documentation cleanup. Modified -verbose to
-	take list of keywords as well as string of letters. Removed Tcl
-	version information from tcltest. Removed tcltest::grep from tcltest
-	package. Added optional 3rd directory argument to
-	makeFile/makeDirectory and removeFile/removeDirectory.
-
-	* tests/basic.test: Changed references to tcltest::tclVersion to
-	hardcoded numbers.
-	* generic/tcl.h: Changed reference to tcltest2.tcl and tcltest.tcl in
-	comments to tests/basic.test.
-
-2000-10-06  David Gravereaux  <davygrvy@ajubasolutions.com>
-
-	* win/tclWinChan.c: moved Win2K bug case test with GetStdHandle() from
-	TclpGetDefaultStdChannel into Tcl_MakeFileChannel to enable a more
-	general method in detecting invalid OS handles rather than just a
-	specific known case. [BUG: 5971]
-
-2000-10-06  Jeff Hobbs  <hobbs@ajubasolutions.com>
-
-	* tests/cmdAH.test: extra tests for 'file channels' that include
-	multiple interpreter tests and channel sharing
-	* generic/tclIO.c (Tcl_GetChannelNamesEx): corrected function (and
-	consequently 'file channels') to return channels that are actually
-	registered for this specific interp, rather than this thread.
-
-	* doc/CrtChannel.3: fixed spelling mistakes
-
-2000-09-29  Jennifer Hom  <jenn@ajubasolutions.com>
-
-	* library/tcltest1.0/tcltest2.tcl:
-	* tests/tcltest2.test:
-	* doc/tcltest2.n: Modified the new form of the test command to accept
-	both attribute-value pairs and command line options. Updated the tests
-	and the documentation for this new format. Also changed the option
-	names for the test command.
-
-2000-09-29  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* win/tclWinSerial.c (SerialGetOptionProc): corrected reporting of
-	space parity on Windows (Eason) [Bug 6057].
-
-	* win/Makefile.in: commented use of TESTFLAGS
-	* unix/Makefile.in: added TESTFLAGS to test target to conform with
-	Windows makefile and TEA style.
-
-	* tests/stack.test: prevented possible crash on systems with low
-	default stacksize (Tru64, AIX) in infinite recursion test. A solution
-	to check remaining stack space in the core is best, but hard to do in
-	a cross-platform manner.
-
-	* generic/tclIOGT.c (FLUSH_DELAY): renamed DELAY define to FLUSH_DELAY
-	to avoid defn conflict using Tru64's cc.
-
-2000-09-28  Jeff Hobbs  <hobbs@ajubasolutions.com>
-
-	* tools/tcl.wse.in: added tclPlatDecls.h and tkPlatDecls.h to the
-	Windows .exe install.
-
-	* tests/fCmd.test (fCmd-6.20): corrected test to remove c:/tcl8975@
-	after creating it.
-
-	* tests/fileName.test: cleaned up the testing of glob patterns for
-	c:/globTest (Windows) to directly create/remove directory.
-
-2000-09-27  Jeff Hobbs  <hobbs@ajubasolutions.com>
-
-	* generic/tcl.decls:
-	* generic/tclIO.c: updated Tcl_IsChannelShared,
-	Tcl_IsChannelRegistered, Tcl_CutChannel, Tcl_SpliceChannel,
-	Tcl_IsChannelExisting, and Tcl_ClearChannelHandlers to conform to the
-	new stacked channel implementation. Their stub slots were also moved
-	to give preference to the new 8.3.2 stub functions. This will cause an
-	incompatibility with 8.4a1 only.
-	(StopCopy): fixed a bug introduced by a partial fix in 8.3.2 that
-	didn't set nonBlocking correctly when resetting the flags for the
-	write side. [Bug: 6261]
-
-	* doc/ChnlStack.3:
-	* doc/CrtChannel.3:
-	* generic/tcl.decls:
-	* generic/tcl.h:
-	* generic/tclDecls.h:
-	* generic/tclIO.c:
-	* generic/tclIO.h:
-	* generic/tclIOGT.c:
-	* generic/tclInt.decls:
-	* generic/tclIntDecls.h:
-	* generic/tclStubInit.c:
-	* generic/tclTest.c:
-	* tests/iogt.test:
-	* unix/Makefile.in:
-	* win/Makefile.in:
-	* win/makefile.vc:
-	* win/tclConfig.sh.in:
-	* win/tclWinChan.c:
-	* win/tclWinConsole.c:
-	* win/tclWinPipe.c:
-	* win/tclWinSerial.c:
-	* win/tclWinSock.c: Up-port of changes made in 8.3.2 to 8.4a2 code
-	base. Most of these changes relate to the rewrite of the stacked
-	channel implementation, with a few config related fixes.
-
-	Following is an asynchronous include of the applicable ChangeLog
-	entries from 8.3.2.
-
-	********************************************************
-	** START OF ASYNCHRONOUS UP-PORT LOG (8.3.2 -> 8.4a2) **
-	********************************************************
-
-2000-08-07  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* doc/ChnlStack.3:
-	* doc/CrtChannel.3: updated the docs to be aware of the
-	TCL_CHANNEL_VERSION_2 style of Tcl channels.
-
-	* generic/tclIO.c (Tcl_CreateChannel): added assertion to verify that
-	the new channel versioning will be binary compatible with older
-	channel drivers.
-
-2000-08-05  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclIOGT.c (TclChannelTransform): fixed segfault that would
-	occur when transforming a channel with a proc that did not yet exist.
-	(Kupries)
-
-	* generic/tclTest.c (TestChannelCmd): added some lint init'ing of
-	statePtr and chan vars.
-
-2000-07-26  Jeff Hobbs  <hobbs@scriptics.com>
-
-	Merged core-8-3-1-io-rewrite back into core-8-3-1-branch. The
-	core-8-3-1-io-rewrite branch should now be considered defunct.
-
-	* generic/tclStubInit.c:
-	* generic/tclDecls.h:
-	* generic/tcl.decls:
-	* generic/tcl.h:
-	* generic/tclIO.c: moved the Tcl_Channel* macros from tcl.h to tclIO.c
-	and made them proper stubbed functions. These are: Tcl_ChannelName,
-	Tcl_ChannelVersion, Tcl_ChannelBlockModeProc, Tcl_ChannelCloseProc,
-	Tcl_ChannelClose2Proc, Tcl_ChannelInputProc, Tcl_ChannelOutputProc,
-	Tcl_ChannelSeekProc, Tcl_ChannelSetOptionProc,
-	Tcl_ChannelGetOptionProc, Tcl_ChannelWatchProc,
-	Tcl_ChannelGetHandleProc, Tcl_ChannelFlushProc, and
-	Tcl_ChannelHandlerProc. These should be used to access the
-	Tcl_ChannelType structure instead of direct pointer dereferencing.
-
-	* tests/iogt.test: added RCS string, marked tests 2.* to be unixOnly
-	due to underlying system differences.
-
-2000-07-25 Andreas Kupries <a.kupries@westend.com>
-
-	* tests/iogt.test: (line 866f) New tests iogt-6.[01], highlighting
-	buffering trouble when stacking and unstacking transformations.
-	iogt-6.0 is solved, see the changes below. iogt-6.1 remains, for now,
-	due to the perceived complexity of solutions.
-
-	* generic/tclIO.h: (line 139f) struct Channel, added a buffer queue,
-	to hold data pushed back when stacking a transformation.
-
-	* generic/tclIO.c:
-	(line 91f, line 7434f) New internal function 'CopyBuffer'.  Derived
-	from 'CopyAndTranslateBuffer', with translation removed.
-	(line 1025f, line 1212f): Initialization of new queue.
-	(line 1164f, Tcl_StackChannel): Pushback of input queue.
-	(line 1293f, Tcl_UnstackChannel): Discard input and pushback.
-	(line 3748f, Tcl_ReadRaw): Modified to use data in the push back area
-	before going to the driver. Uses 'CopyBuffer', s.a.
-	(line 4702f, GetInput): Modified to use data in the push back area
-	before going to the driver.
- 	(line 4867f, Tcl_Seek): Modified to take pushback of the topmost
-	channel in a stack into account.
-	(line 5620f, Tcl_InputBuffered): See above. Added
-	'Tcl_ChannelBuffered'. Analog to 'Tcl_InputBuffered' but for the
-	buffer area in the channel.
-
-	* generic/tcl.decls: New public API 'Tcl_ChannelBuffered'. S.a.
-
-2000-07-17  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* unix/Makefile.in:
-	* win/Makefile.in:
-	* win/makefile.vc: added tclIOGT.c to objects list to compile.
-
-	* generic/tclStubInit.c:
-	* generic/tclIntDecls.h:
-	* generic/tclInt.decls: commented out internal decls for
-	TclTestChannelCmd and TclTestChannelEventCmd as they were moved to
-	tclTest.c. Added new decls for TclChannelEventScriptInvoker and
-	TclChannelTransform.
-
-	* generic/tclIO.c (CloseChannel): stopped masking out of the
-	TCL_READABLE|TCL_WRITABLE bits from the state flags in CloseChannel,
-	instead adding extra intelligence to CheckChannelErrors with a new
-	CHANNEL_RAW_MODE bit for special behavior when called from Raw channel
-	APIs.
-
-2000-07-13  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclIO.c (StackSetBlockMode): moved set of chanPtr outside of
-	blockModeProc check to avoid infinite loop when blockModeProc was
-	NULL. Updated TransformSeekProc to not call Tcl_Seek directly
-	(Kupries).
-
-	* win/tclWinChan.c: updated fileChannelType to v2 channel struct
-	* win/tclWinConsole.c: updated consoleChannelType to v2 channel struct
-	* win/tclWinPipe.c: updated pipeChannelType to v2 channel struct
-	* win/tclWinSerial.c: updated serialChannelType to v2 channel struct
-	* win/tclWinSock.c: updated tcpChannelType to v2 channel struct
-
-2000-07-11  Brent Welch	<welch@ajubasolutions.com>
-
-	* win/tclConfig.sh.in (TCL_LIBS): Cleaned up unix-specific autoconf
-	variables.
-
-2000-07-11  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* tests/iogt.test: made tests [345].0 not run by default as they were
-	failing in the new design, but I'm not convinced that the returned
-	result isn't correct.
-
-	* generic/tclDecls.h:
-	* generic/tclStubInit.c:
-	* generic/tcl.decls: added Tcl_GetTopChannel C API that returns the
-	current top channel of a channel stack. Tcl_GetChannel was changed
-	earlier to return the bottommost channel of a stack because that is
-	the one that is guaranteed to stay around the longest, and this was
-	needed to compensate for certain operations that want to look at the
-	state of the main channel. Most channel APIs already compensate for
-	grabbing the top, so it shouldn't be needed often.
-
-	* generic/tclIO.c (Tcl_StackChannel, Tcl_UnstackChannel): Added
-	flushing of buffers (Kupries), removed use of DownChannel macro, added
-	Tcl_GetTopChannel public API to get to the top channel of the channel
-	stack (necessary for TLS). Rewrote Tcl_NotifyChannel for new channel
-	design (Kupries). Did some code cleanup in the transform code.
-	tclIO.c must still be broken into bits (separate out test code and
-	giot code, create tclIO.h).
-
-2000-07-10  Andreas Kupries <a.kupries@westend.com>
-
-	* tests/iogt.test: Reverted some earlier changes as a fix by Jeff
-	revived the original and correct behaviour. IOW, the tests showed a
-	genuine error and I didn't see it :(.
-
-	* generic/tclIO.c (Tcl_Read|Write_Raw): Changed to directly use the
-	drivers and not DoRead|DoWrite. The latter use the buffering system,
-	encoding and eol-translation and this wreaks havoc with the data going
-	through the transformations. Both procedures use CheckForchannelErrors
-	and let it believe that there is no background copy in progress or
-	else stacked channels could not be used for that.
-
-	* generic/tclIO.c (TclCopyChannel, CopyData): Moved access to the
-	topmost channel from the first to the second procedure to make the
-	decision about that at the last possible time (Callbacks can change
-	the stacking).
-
-	test suite: failures of iogt-[345].0
-
-2000-07-06  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* tests/iogt.test: new tests for stacked channel stuff based off new
-	'testchannel transform|unstack' code (Kupries IOGT extension).
-	* generic/tcl.decls:
-	* generic/tcl.h:
-	* generic/tclDecls.h:
-	* generic/tclStubsInit.c:
-	* generic/tclIO.c: complete rewrite of Tcl Channel code for stacked
-	channels. Channels are now designed to work in a more stacked fashion
-	with a shared ChannelState data structure.
-
-2000-06-02  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclIO.c (CloseChannel): removed the &ing out of
-	(TCL_READABLE|TCL_WRITABLE) from the flags, as CloseChannel does this
-	on the next pass through for the top channel, and it appeared to be
-	causing hangs by not allowing the final flush.
-
-2000-06-01  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclIO.c (CloseChannel): Rewrote CloseChannel code to unstack
-	a channel during the close process. Fixed a refcount bug in
-	Tcl_UnstackChannel. [Bug: 5623]
-	(CloseChannel): further extended CloseChannel in the stacked case to
-	effect certain operations on the next channel that would have been
-	done in Tcl_Close.  Also added CHANNEL_CLOSED and removed
-	(TCL_READABLE|TCL_WRITABLE) bits from chanPtr->flags. Changed final
-	reset of the WatchProc to check the chanDownPtr's (next) interestMask.
-
-	******************************************************
-	** END OF ASYNCHRONOUS UP-PORT LOG (8.3.2 -> 8.4a2) **
-	******************************************************
-
-2000-09-20  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* tests/socket.test: removed doTestsWithRemoteServer constraint from
-	socket-12.*. It requires 'exec', not a remote server. Cleaned up some
-	coding errors.
-
-2000-09-20  Jennifer Hom  <jenn@ajubasolutions.com>
-
-	* library/tcltest1.0/pkgIndex.tcl: Updated to load tcltest 2.0.
-	* library/tcltest1.0/tcltest2.tcl: New version of tcltest.
-	Cleanup of command line parsing: allows users to specify command line
-	arguments through an environment variable named TCLTEST_OPTIONS [RFE:
-	3748], does not respond to incorrect arguments, and forces usage of
-	entire flag name when using command line arguments. Defines accessor
-	procs for all tcltest variables. Allows users to use 'return' in test
-	scripts. Allow users to specify whether test files should be sourced
-	or run in a separate process. 'all.tcl' code moved to tcltest package.
-	'test' proc modified to use attribute-value pairs. Allow users to
-	specify what return codes, output, and errors can be compared and
-	whether these values should be compared using regexp, glob, or exact
-	matching. makeDirectory & removeDirectory now operate with respect to
-	temporaryDirectory [Bug: 6001]. Test results from tests run in slave
-	interpreters are now included in test totals [Bug: 1493]. Test files
-	that return error values are now reported.
-	* tests/all.tcl: Added code to check for the tcltest version loaded;
-	modified to figure out which tests to run based on the tcltest version
-	loaded.
-	* tests/tcltest.test: Modified to explicitly load version 1.0 of
-	tcltest.
-	* tests/tcltest2.test: New test suite for tcltest; includes all of the
-	old tests plus new ones reflecting changes made for version 2.0.
-	* tests/cmdAH.test: Added singleTestInterp constraint to cmdAH-31.2;
-	this test does not run if tests aren't sourced into a single
-	interpreter.
-	* tests/socket.test: Fixed two tests that were referencing variables
-	outside of scope.
-
-	* tools/tcl.wse.in: Added code to install tcltest2.tcl.
-
-	* doc/tcltest2.n: New documentation for tcltest version 2.0. Removes
-	documentation for tcltest namespace variables. Adds documentation for
-	new tcltest procs.
-
-	* unix/mkLinks: Added code to link to tcltest2.n.
-
-	* generic/tcl.h: Added comment to modify tcltest2.tcl as well as
-	tcltest.tcl for version changes.
-
-2000-09-19  Eric Melski  <ericm@ajubasolutions.com>
-
-	* generic/tclCmdMZ.c (Tcl_RegexpObjCmd): When using -all, all attempts
-	after the first to match the regexp against the string should include
-	the TCL_REG_NOTBOL flag, to avoid erroneously matching ^ in the middle
-	of the string. Added code to set this flag after the first pass
-	through the matching loop. [Bug: 6284].
-
-2000-09-19  David Gravereaux  <davygrvy@ajubasolutions.com>
-
-	* doc/Eval.3: Added a note about the script argument to Tcl_Eval()
-	should be in UTF-8 or risk implied conversion errors when possible
-	combinations of upper ascii can be valid UTF-8 special codes.
-
-2000-09-17  Eric Melski  <ericm@ajubasolutions.com>
-
-	* tests/cmdIL.test: Added a test for fix for [Bug: 6212].
-
-	* generic/tclCmdIL.c (Tcl_LsortObjCmd): Applied patch from [Bug:
-	6212], which corrected an error in the handling of the -index option.
-
-2000-09-14  Eric Melski  <ericm@ajubasolutions.com>
-
-	* doc/Alloc.3: Added entries for Tcl_AttemptAlloc, Tcl_AttempRealloc.
-
-	* doc/StringObj.3: Added entry for Tcl_AttemptSetObjLength.
-
-	* generic/tclDecls.h:
-	* generic/tclStubInit.c: Regen'ed stubs files from new tcl.decls.
-
-	* generic/tcl.decls: Added stubs for the Tcl_Attempt* memory
-	allocators and for Tcl_AttemptSetObjLength.
-
-	* generic/tcl.h: Added #define's for attemptckalloc, attemptckrealloc,
-	which map to the Tcl_Attempt* memory allocators.
-
-	* generic/tclCkalloc.c: Added non-panic'ing versions of Tcl_Alloc,
-	Tcl_Realloc, etc.; these are called Tcl_AttemptAlloc,
-	Tcl_AttemptRealloc, etc. These are used by Tcl_AttemptSetObjLength and
-	the string obj append functions.
-
-	* generic/tclStringObj.c: Modified string growth algorithm to use
-	doubling algorithm as long as possible, and only fall back when that
-	fails. Added Tcl_AttemptSetObjLength, and modified
-	AppendUnicodeToUnicodeRep, AppendUtfToUtfRep, and
-	Tcl_AppendStringsToObjVA to support this.
-
-2000-09-07  David Gravereaux <davygrvy@ajubasolutions.com>
-
-	* win/.cvsignore: changed the glob patterns a bit to exclude VC++
-	project conversion backups.
-
-	* win/tclWinPipe.c: Stage-1 bug fix for TR#2460 "exec leaks memory".
-	Added more logic around the close-down of the pipe reader thread so as
-	to avoid, at all cost, a TerminateThread. Most cases with exec are
-	fixed, but I don't consider 2460 done yet. Closing down the read side
-	of a pipe before the child process, doesn't really fit the windows
-	model. [BUG: 2460]
-
-2000-09-07  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* doc/trace.n: minor doc cleanup
-
-2000-09-06  André Pönitz <poenitz@htwm.de>
-
-	* doc/*.n: added or changed "SEE ALSO:" section
-
-2000-09-06  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* win/tclWinLoad.c (TclpLoadFile): added special message for
-	ERROR_PROC_NOT_FOUND exception in loading a dll.
-	* win/tclWinError.c: changed ERROR_PROC_NOT_FOUND to map from ESRCH
-	(POSIX: no such process) to EINVAL because there is no good mapping
-	for "procedure not found".
-
-	* README:
-	* generic/tcl.h:
-	* library/tcltest1.0/tcltest.tcl:
-	* tools/tcl.wse.in:
-	* tools/tcltk-man2html.tcl:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/README.binary:
-	* win/configure.in: updated patchlevel to 8.4a2
-
-	* unix/tclUnixPipe.c (TclpCreateProcess): Removed WNOHANG from
-	Tcl_WaitPid call in error case of process creation on Unix, as it
-	would lead to defunct processes. [Bug: 6148]
-
-	* tests/string.test: extended string repeat tests
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd): changed STR_REPEAT to
-	preallocate the full space of the final string, avoided repeated
-	appends.
-
-	* doc/source.n:
-	* doc/Eval.3: added extra note about how to safe use ^Z in code, as it
-	is now a cross-platform (was just Windows) EOF char.
-
-2000-09-05  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclHash.c: fixed pedantic warning of incorrectly placed
-	#endif
-
-	* generic/tclExecute.c (TclExecuteByteCode): INST_STR_INDEX fixed
-	pedantic cast warning.
-	Corrected support for building with -DTCL_COMPILE_STATS.
-	Added efficiency check of object equality.
-
-2000-08-29  Eric Melski  <ericm@ajubasolutions.com>
-
-	* generic/tclStringObj.c: Applied patch from Gerhard Hintermayer to
-	provide a more conservative string growth algorithm for strings larger
-	than one megabyte; this allows more efficient use of memory for very
-	large strings.
-
-2000-08-25  Eric Melski  <ericm@ajubasolutions.com>
-
-	* tests/trace.test: Extended array tracing tests.
-
-	* doc/trace.n: Clarified information about when array traces will be
-	fired.
-
-	* generic/tclVar.c (Tcl_ArrayObjCmd): Corrected call to CallTraces
-	(for TCL_TRACE_ARRAY) to only be called when the variable is either an
-	array or is undefined, to ensure that array traces do not fire for
-	scalar variables.
-
-2000-08-24  Eric Melski  <ericm@ajubasolutions.com>
-
-	* doc/man.macros: Tweaked tab settings for .SO (Standard Options)
-	sections, based on suggestion from Peter Spjuth.
-
-2000-08-24  Mo DeJong  <mdejong@redhat.com>
-
-	* unix/README: Update to account for removal of --enable-gcc.
-	* unix/configure.in:
-	* unix/tcl.m4 (SC_ENABLE_GCC): Remove --enable-gcc option.
-	* win/README: Add note about building with Cygwin.
-	* win/configure.in:
-	* win/tcl.m4 (SC_ENABLE_GCC): Remove --enable-gcc option. Remove quick
-	hack that provided cross compile support for windows builds.
-
-2000-08-24  Eric Melski  <ericm@ajubasolutions.com>
-
-	Overall change: Added support for command rename/delete traces and new
-	trace syntax, from patch from Vince Darley. Added support for array
-	traces for variables. [RFE: 5048, 5967].
-
-	* doc/trace.n: Updated documentation for new syntax; flagged old
-	syntax as deprecated; added documentation for command rename/delete
-	traces and variable array traces.
-
-	* tests/trace.test: Updated tests for new trace syntax; new tests for
-	command rename/delete traces; new tests for array traces.
-
-	* generic/tclVar.c: Support for new trace syntax; support for
-	TCL_TRACE_ARRAY.
-
-	* generic/tclStubInit.c:
-	* generic/tclDecls.h:
-	* generic/tcl.decls: Stub functions for command rename/delete traces.
-
-	* generic/tcl.h:
-	* generic/tclInt.h:
-	* generic/tclBasic.c: Support for command traces.
-
-	* generic/tclCmdMZ.c (TclTraceVariableObjCmd): Patched to support new
-	[trace] syntax:
-	trace {add|remove|list} {variable|command} name ops command
-	Added support for command traces (rename, delete operations).
-	Added support for TCL_TRACE_ARRAY at Tcl level (array operation for
-	variable traces).
-
-2000-08-20  Eric Melski  <ericm@ajubasolutions.com>
-
-	* generic/tclVar.c: Added check for non-arrays for [array statistics]
-	command (patch from Mark Patton).
-
-2000-08-19  David Gravereaux <davygrvy@ajubasolutions.com>
-
-	* generic/tclPlatDecls.h: without a previous '#include <windows.h>',
-	tclPlatDecls.h can't be parsed due to a missing definition of TCHAR.
-	Added a check to include it when not defined.
-
-	***POSSIBLE OBSCURE BUG*** could be caused when the compile flags for
-	the core happen to be different than a project who uses these publics
-	regarding -D_MBCS and -D_UNICODE. This added check might have to be
-	revisited later with a better understanding of the reprocusions. I
-	think TCHAR should be replaced with it's expansion.
-
-2000-08-18  David Gravereaux <davygrvy@ajubasolutions.com>
-
-	* win/.cvsignore (added): provides a cleaner build environment with
-	graphical CVS clients.
-
-2000-08-15  Eric Melski  <ericm@ajubasolutions.com>
-
-	* library/tcltest1.0/tcltest.tcl: Set debug level in
-	tcltest::restoreState to 2, for consistancy with the debug level in
-	tcltest::saveState [Bug: 4505].
-
-2000-08-14  Eric Melski  <ericm@ajubasolutions.com>
-
-	* win/makefile.vc:
-	* win/Makefile.in:
-	* unix/Makefile.in: Added tclPlatDecls.h to the list of installed
-	headers, for more complete stubs support. [Bug: 5241].
-
-	* generic/tcl.h: Added #include "tclPlatDecls.h" to get
-	platform-specific stubs declarations (Tcl_WinTCharToUtf, etc)
-	[Bug: 5241].
-
-	* README: Updated link for instructions on compiling Tcl from sources
-	to point to correct location (http://dev.scriptics.com/doc/... instead
-	of http://dev.scriptics.com/support/...).
-
-2000-08-11  Eric Melski  <ericm@ajubasolutions.com>
-
-	* generic/tclEnv.c (TclUnsetEnv): Changed declaration of length
-	variable from "unsigned int" to "int", to match usage when passed to
-	TclpFindVariable [Bug: 6126].
-
-2000-08-10  Eric Melski  <ericm@ajubasolutions.com>
-
-	* library/msgcat1.0/pkgIndex.tcl: Bumped version number to 1.2 [Bug:
-	6100].
-
-	* library/msgcat1.0/msgcat.tcl: Removed erroneous [package forget] in
-	msgcat namespace initializer. Bumped version number to 1.2 [Bug: 6100]
-
-2000-08-10  David Gravereaux <davygrvy@ajubasolutions.com>
-
-	* generic/tclObj.c: r1.15 accidentally changed a global mutex name
-	tclObjMutex to ObjMutex.  Put the correct name back.
-
-2000-08-07  Eric Melski  <ericm@ajubasolutions.com>
-
-	* tests/indexObj.test: Added tests using the [testwrongnumargs]
-	command to test Tcl_WrongNumArgs.
-
-	* generic/tclTest.c (TestWrongNumArgsObjCmd): Added test function for
-	the Tcl_WrongNumArgs function.
-
-	* generic/tclIndexObj.c (Tcl_WrongNumArgs): Corrected algorithm to not
-	insert a space before the message component when objc == 0 [Bug: 6078]
-
-2000-07-27  Mo DeJong  <mdejong@redhat.com>
-
-	* win/configure.in: TCL_STUB_LIB_FLAG should not include ${TCL_DBGX}
-	in win/tclConfig.sh, fix that.
-
-2000-07-25  David Gravereaux  <davygrvy@ajubasolutions.com>
-
-	* doc/Async.3:
-	* generic/tclAsync.c:
-	* generic/tclInt.decls:
-	* generic/tclIntPlatDecls.h:
-	* generic/tclStubInit.c:
-	* generic/tclTest.c:
-	* mac/tclMacPort.h:
-	* unix/tclUnixPort.h:
-	* win/tclWinInit.c: Thread-safe rewrite for tclAsync.c. Added notifier
-	alerting on all platforms as it was only working on Win before.
-	Removed older Win hacks that would end-up waking the wrong notifier in
-	the presence of a threaded build. All tests pass as before. New test
-	cases will be added soon for the new behavior. [BUG: 5791]
-
-2000-07-25  Eric Melski  <ericm@ajubasolutions.com>
-
-	* generic/tclVar.c (CallTraces): Added check for VAR_TRACE_ACTIVE on
-	the array containing the variable before executing traces on that
-	array, to conform with normal variable traces and the documentation,
-	which states that while executing a trace, other traces on that
-	variable are disabled. [Bug: 6049].
-
-	* win/tclWinPipe.c (BuildCommandLine): Added Tcl_DStringFree call to
-	prevent potential memory leaks [Bug: 6041].
-
-2000-07-24  Eric Melski  <ericm@ajubasolutions.com>
-
-	* doc/msgcat.n: Added documentation about the selection of the default
-	locale on Windows.
-
-2000-07-23  Joe English  <jenglish@flightlab.com>
-
-	* doc/AddErrInfo.3:
-	* doc/ChnlStack.3:
-	* doc/Exit.3:
-	* doc/GetIndex.3:
-	* doc/Notifier.3:
-	* doc/Object.3:
-	* doc/RegExp.3:
-	* doc/SetResult.3:
-	* doc/SplitList.3:
-	* doc/Thread.3:  Added missing entries to NAME section.
-
-	* doc/AddErrInfo.3:
-	* doc/CrtObjCmd.3:
-	* doc/RecEvalObj.3: Changed Tcl_EvalObj to Tcl_EvalObjEx
-
-2000-07-21  Eric Melski  <ericm@ajubasolutions.com>
-
-	* generic/tclStubInit.c:
-	* generic/tclObj.c:
-	* generic/tclInt.h:
-	* generic/tclHash.c:
-	* generic/tclDecls.h:
-	* generic/tcl.h:
-	* generic/tcl.decls:
-	* doc/Hash.3: Reapplied patch from Paul Duffin to extend hash tables
-	to allow custom key types, such as Tcl_Obj *'s, and others.
-
-	* doc/binary.n: Noted that the example in the introduction assumes a
-	32-bit system [Bug: 6035].
-
-2000-07-21  Mo DeJong  <mdejong@redhat.com>
-
-	* win/configure.in: Define ${prefix} and ${exec_prefix} like
-	unix/configure.in. Fix or add TCL_SRC_DIR, TCL_STUB_LIB_FILE,
-	TCL_STUB_LIB_FLAG, TCL_BUILD_STUB_LIB_SPEC, TCL_STUB_LIB_SPEC,
-	TCL_BUILD_STUB_LIB_PATH, TCL_STUB_LIB_PATH.
-
-2000-07-20  Eric Melski  <ericm@ajubasolutions.com>
-
-	* generic/tclStubInit.c:
-	* generic/tclObj.c:
-	* generic/tclInt.h:
-	* generic/tclHash.c:
-	* generic/tclDecls.h:
-	* generic/tcl.h:
-	* generic/tcl.decls:
-	* doc/Hash.3: Reverted patch from Paul Duffin to extend hash tables to
-	allow custom key types, such as Tcl_Obj *'s, and others; it seems to
-	break Tk.
-
-2000-07-19  Eric Melski  <ericm@ajubasolutions.com>
-
-	* generic/tclStubInit.c:
-	* generic/tclObj.c:
-	* generic/tclInt.h:
-	* generic/tclHash.c:
-	* generic/tclDecls.h:
-	* generic/tcl.h:
-	* generic/tcl.decls:
-	* doc/Hash.3: Applied patch from Paul Duffin to extend hash tables to
-	allow custom key types, such as Tcl_Obj *'s, and others.
-
-	* tests/pkgMkIndex.test: Added tests for pkg_compareExtension.
-
-	* library/package.tcl: Enhanced pkg_compareExtension to handle Unixes
-	which tack the version number on to the end of library names (eg,
-	foo.so.1.2); such filenames will be correctly matched. (Patch from
-	Vince Darley).
-
-	* win/makefile.vc: Applied patch from Don Porter to provide better
-	nmake support for NT/Alpha [RFE: 5938].
-
-2000-07-18  Mo DeJong  <mdejong@redhat.com>
-
-	* unix/configure.in:
-	* unix/tcl.m4:
-	* win/tcl.m4: Properly quote arguments to m4 macros. This allows Tcl
-	to work with the new version of autoconf.
-
-2000-07-18  Eric Melski  <ericm@ajubasolutions.com>
-
-	* tests/opt.test: Removed references to Lfirst, Lrest functions.
-
-	* library/opt0.4/optparse.tcl: Applied patch from Chris Nelson, which
-	replaces the [Lfirst] function with an inline [lindex ... 0] and
-	[Lrest] with [lrange ... 1 end], for better performance. [RFE: 6019]
-
-2000-07-18  Eric Melski  <ericm@scriptics.com>
-
-	* compat/string.h: Fixed function prototypes for strpbrk and strtok
-	[Bug: 6020].
-
-2000-07-17  David Gravereaux  <davygrvy@ajubasolutions.com>
-
-	* win/tclWinChan.c: Win2K OS bug with GetStdHandle(STD_OUTPUT_HANDLE)
-	giving the wrong answer. This made TclpGetDefaultStdChannel grab what
-	it thought was a valid native stdout handle. Added a new WriteFile()
-	test to make sure it's really valid. This OS bug doesn't affect the
-	shells. Only -subsystem:windows (aka WinMain) application that
-	dynamically load tclXX.dll [BUG: 5971]
-
-2000-07-17  Eric Melski  <ericm@scriptics.com>
-
-	* library/msgcat1.0/msgcat.tcl:
-	* doc/msgcat.n:
-	* tests/msgcat.test: Applied patches from Chris Nelson, to provide the
-	mcmset function, which allows the translator to set multiple string
-	translations in a single function call, rather than requiring many
-	calls to mcset. [RFE: 6000, 5993]. In addition, these patches correct
-	mcload to use utf-8 encoding on when reading message catalog files,
-	and provides for better default behavior for determining the locale on
-	a Windows system.
-
-2000-07-17  Mo DeJong  <mdejong@redhat.com>
-
-	* unix/tcl.m4 (SC_ENABLE_GCC): Don't set CC=gcc before running
-	AC_PROG_CC if CC is already set.
-
-2000-07-13  André Pönitz <poenitz@mathematik.tu-chemnitz.de>
-
-	* doc/lappend.n:
-	* doc/lindex.n:
-	* doc/linsert.n:
-	* doc/list.n:
-	* doc/llength.n:
-	* doc/lrange.n:
-	* doc/lreplace.n:
-	* doc/lsearch.n:
-	* doc/lsort.n: Added SEE ALSO sections.
-
-2000-07-07  Mo DeJong  <mdejong@redhat.com>
-
-	* win/configure.in: Fix definition of TCL_SRC_DIR so that it matches
-	the Unix version.
-	* win/tclConfig.sh.in: Removed duplicate variables.
-
-2000-07-06  Eric Melski  <ericm@scriptics.com>
-
-	* tests/msgcat.test:
-	* library/msgcat1.0/msgcat.tcl: Applied patch from Christian Krone, to
-	provide extended args support for msgcat::unknown, which is used for
-	strings without a known translation in the current locale [Bug: 5984].
-
-2000-06-29  Eric Melski  <ericm@scriptics.com>
-
-	* doc/msgcat.n: Doc's for mcmax function.
-
-	* library/msgcat1.0/msgcat.tcl: Applied patches from Laurent Duperval,
-	to add mcmax function, which computes the length of the longest of
-	several translated strings. Bumped version number to 1.1.
-
-2000-06-27  Eric Melski  <ericm@scriptics.com>
-
-	* tests/stringObj.test: Tweaked tests to avoid hardcoded high-ASCII
-	characters (which will fail in multibyte locales); instead used \uXXXX
-	syntax. [Bug: 3842].
-
-2000-06-26  Eric Melski  <ericm@scriptics.com>
-
-	* doc/package.n: Corrected information about [package forget]
-	arguments [Bug: 5418].
-
-2000-06-23  Eric Melski  <ericm@scriptics.com>
-
-	* doc/Hash.3: Added documentation patch for Tcl_Obj *'s as keys in Tcl
-	hash tables [RFE: 5934].
-
-	* generic/tcl.h:
-	* generic/tclHash.c: Applied patch from [RFE: 5934], which extends Tcl
-	hash tables to allow Tcl_Obj *'s as the key.
-
-2000-06-20  Eric Melski  <ericm@ajubasolutions.com>
-
-	* tests/opt.test:
-	* library/opt0.4/optparse.tcl: Applied patch from [Bug: 5922], which
-	corrected an incorrect use of [string match].
-
-	* unix/tclConfig.sh.in:
-	* win/tclConfig.sh.in: Applied patch from [Bug: 5921], which corrects a
-	typo in the comments in these files.
-
-2000-06-19  Eric Melski  <ericm@scriptics.com>
-
-	* doc/RegExp.3: Replaced instances of "Tcl_GetRegExpInfo" with
-	"Tcl_RegExpGetInfo", the correct name of the function [Bug: 5901].
-
-2000-06-13  Eric Melski  <ericm@scriptics.com>
-
-	* win/tcl.m4:
-	* win/configure.in:
-	* win/Makefile.in: Applied patch from [RFE: 5844], to extend support
-	for mingw compile environment on Windows.
-
-	* win/tclWinDde.c:
-	* win/tclWinInit.c:
-	* win/tclWinNotify.c:
-	* win/tclWinPipe.c:
-	* win/tclWinReg.c:
-	* win/tclWinThrd.c: Applied patch from [Bug: 5794], to fix compiler
-	warnings when using mingw on Windows.
-
-2000-05-31  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* tests/set-old.test:
-	* doc/unset.n:
-	* generic/tclVar.c (Tcl_UnsetObjCmd): added -nocomplain and -- options
-	to unset, to allow for a silent unset operation.
-
-2000-05-31  Eric Melski  <ericm@scriptics.com>
-
-	* generic/tclVar.c (Tcl_ArrayObjCmd): Added support for regexp and
-	exact matching for [array names] command. [RFE: 3684].
-
-	* doc/array.n: Added documentation for [array names
-	-exact/-regexp/-glob] [RFE: 3684].
-
-	* tests/set-old.test: Added tests for [array names
-	-exact/-regexp/-glob] [RFE: 3684].
-
-2000-06-06  Jeff Hobbs  <hobbs@scriptics.com>
-
-	8.4a1 RELEASE
-
-	* generic/tclExecute.c (TclExecuteByteCode INST_STR_CMP): added test
-	of iResult return from memcmp, as memcmp isn't required to return only
-	-1,0,1.
-
-2000-06-03  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclIndexObj.c (Tcl_GetIndexFromObjStruct): Corrected caching
-	of the index ptr to account for offsets != sizeof(char *). [Bug: 5153]
-
-2000-05-29  Sandeep Tamhankar <sandeep@scriptics.com>
-
-	* tests/http.test
-	* doc/http.n
-	* library/http2.3/http.tcl: Fixed bug 5741, where unsuccessful geturl
-	calls sometimes leaked memory and resources (sockets). Also, switched
-	around some of the logic so that http::wait never throws an exception.
-	This is because in an asynchronous geturl, the command callback will
-	probably end up doing all the error handling anyway, and in an
-	asynchronous situation, the user expects to check the state when the
-	transaction completes, as opposed to being thrown an exception.	For
-	the http package, this menas the user can check http::status for
-	"error" and http::error for the error message after doing the
-	http::wait.
-
-2000-05-27  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* tests/info.test:
-	* doc/info.n:
-	* generic/tclIOUtil.c (Tcl_EvalFile):
-	* generic/tclCmdIL.c (InfoScriptCmd): added ability to set the info
-	script return value [info script ?newFileName?]. This will be
-	beneficial for virtual file system programs. [Bug: 4225]
-
-2000-05-26  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclCmdMZ.c (Tcl_RegsubObjCmd): reworked to operate in
-	Unicode, tweaked for performance.
-	(Tcl_StringObjCmd) changed STR_FIRST/STR_LAST error message to
-	something more understandable, reworked STR_FIRST, STR_LAST, STR_MAP,
-	STR_MATCH, STR_RANGE, STR_REPLACE to operate in Unicode. Removed
-	inneffectual STR_RANGE "special" ByteArray support. Optimized STR_MAP
-	algorithm, especially optimized for one-pair case. Fixed possible mem
-	overrun in STR_INDEX bytearray case.
-
-	* generic/tclCompExpr.c: changed INST_STREQ -> INST_STR_EQ,
-	INST_STRNEQ -> INST_STR_NEQ
-	* generic/tclCompile.c: added streq, strneq, strcmp, strlen &
-	strmatch to the compiled stats instructionTable
-	* generic/tclCompile.h: added instructions INST_STR_CMP,
-	INST_STR_INDEX, INST_STR_MATCH
-	* generic/tclCompCmds.c: added byte compiler support for [string
-	compare|match|index].
-	* generic/tclExecute.c: Changed INST_STR_(N)EQ to return an Int object
-	and not bother trying to reuse the top stack object. Added
-	INST_STR_CMP, INST_STR_INDEX, INST_STR_MATCH bytecode ops. Extended
-	evalstats output info with Tcl_IsShared stat info.
-
-	* generic/tclInt.h:
-	* generic/tclObj.c (Tcl_DbIsShared): added support for checking result
-	of Tcl_IsShared in evalstats (TCL_COMPILE_STATS).
-
-	* generic/tclStringObj.c (Tcl_AppendUnicodeToObj): removed dead code.
-	(AppendUnicodeToUnicodeRep) removed overallocation by extra
-	sizeof(Tcl_UniChar) multiplier.
-
-	* tests/string.test: added string map tests for the one-pair case,
-	corrected tests to reflect improved error messages in first/last.
-	Added tests against mem overrun in string index bytearray case.
-
-2000-05-23  Eric Melski  <ericm@scriptics.com>
-
-	* generic/tclInt.h: Added function prototypes for TclCompileStringCmd
-	and TclCompileReturnCmd.
-
-	* generic/tclCompile.h: Added definition of INST_STRLEN opcode and
-	updated LAST_INST_OPCODE value.
-
-	* generic/tclBasic.c: Added information about TclCompileStringCmd and
-	TclCompileReturnCmd to BuiltInCmds table.
-
-	* generic/tclExecute.c (TclExecuteByteCode): Added support for the
-	INST_STRLEN opcode.
-
-	* generic/tclCompCmds.c (TclCompileStringCmd): Basic implementation of
-	byte-compiled [string] command. Not all subcommands are implemented;
-	those that are not an out-line compiled.
-
-	(TclCompileReturnCmd): Byte-compiled implementation of [return]
-	command. Only "simple" returns are byte-compiled; in particular, if
-	the -code, -errorinfo or -errorcode flags are used, the command is not
-	byte-compiled.
-
-2000-05-22  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* doc/scan.n:
-	* doc/array.n: minor doc fixes [Bug: 5396]
-
-	* generic/tclEnv.c: cast cleanup [Bug: 5624]
-	* win/tclWinConsole.c: cast and header cleanup [Bug: 5625]
-	* win/tclWinSerial.c: cast cleanup [Bug: 5626]
-	* win/tclWinFCmd.c: cast cleanup [Bug: 5627]
-
-2000-05-19  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclTest.c:
-	* generic/tclIO.c: moved channel test commands from tclIO.c to
-	tclTest.c.
-	* generic/tclIO.h: new file, split out from tclIO.c to allow test
-	commands to be moved to tclTest.c.
-
-	* generic/tclStubInit.c:
-	* generic/tclIntDecls.h:
-	* generic/tclInt.decls: removed TclTestChannel*Cmd from internal stubs
-	table and added TclChannelEventScriptInvoker to the internal stubs
-	table so it can be used from the test code.
-
-2000-05-18  Eric Melski  <ericm@scriptics.com>
-
-	* tests/clock.test: Added test for "2 days 2 hours ago" style
-	specifications.
-
-	* generic/tclDate.c: Regenerated from tclGetDate.y.
-
-	* generic/tclGetDate.y: Tweaked grammar to properly handle the "ago"
-	keyword when it follows multiple relative unit specifiers, as in "2
-	days 2 hours ago". [Bug: 5497]
-
-2000-05-18  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* win/{tcl.m4,Makefile.in,configure.in}: added support for mingw
-	compile env and cross-compiling. [Bug: 5499]
-
-	* generic/tclClock.c (FormatClock): correct code to handle locale
-	specific return values from strftime, if any. [Bug: 3345]
-
-	* unix/tclUnixInit.c (TclpSetInitialEncodings): attempt to correct
-	setlocale calls for XIM support and locale issues. [BUG: 5422 3345
-	4236 2522 2521]
-
-2000-05-17  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* library/init.tcl (auto_import): added check to see if a valid
-	pattern was coming in, to avoid simple error cases [Bug: 3326]
-
-	* doc/regsub.n: correct regsub docs [Bug: 5346]
-
-2000-05-15  Eric Melski  <ericm@scriptics.com>
-
-	* library/history.tcl: Corrected an off-by-one error in HistIndex,
-	which was causing [history redo] to start its search at the wrong
-	event index. [Bug: 1269].
-
-2000-05-10  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclPosixStr.c (Tcl_SignalMsg): clarified #defines for Linux
-	on Sparc to compile correctly. [Bug: 5364]
-
-	* doc/namespace.n:
-	* tests/namespace.test:
-	* generic/tclNamesp.c (Tcl_NamespaceObjCmd): added 'namespace exists'
-	command. [Bug: 4665]
-
-	* doc/source.n:
-	* doc/Eval.3:
-	* tests/source.test:
-	* generic/tclIOUtil.c (Tcl_EvalFile): added explicit \32 (^Z) eofchar
-	(affects Tcl_EvalFile in C, "source" in Tcl). This was implicit on
-	Windows already, and is now cross-platform to allow for scripted
-	documents.
-
-2000-05-09  Andreas Kupries  <a.kupries@westend.com>
-	operating as proxy for David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinThrd.c (TclpInitLock, TclpMasterLock): Added missing
-	initialization of joinLock.
-
-2000-05-09  Eric Melski  <ericm@scriptics.com>
-
-	* tests/lsearch.test:
-	* doc/lsearch.n:
-	* generic/tclCmdIL.c (Tcl_LsearchObjCmd): Extended [lsearch] to
-	support sorted list searching and typed list searching. [RFE: 4098].
-
-2000-05-08  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* doc/expr.n:
-	* tests/expr.test:
-	* tests/expr-old.test: added tests for 'eq' and 'ne'
-	* generic/tclExecute.c:
-	* generic/tclCompile.h: added INST_STREQ and INST_STRNEQ opcodes that
-	do strict string comparisons.
-	* generic/tclCompExpr.c: added 'eq' and 'ne' string comparison
-	operators.
-	* generic/tclParseExpr.c (GetLexeme): added 'eq' and 'ne' expr parse
-	terms (string (in)equality check).
-
-	* generic/tclCmdIL.c (Tcl_LinsertObjCmd): made use of
-	Tcl_DuplicateObj where code was otherwise duplicated. Made special
-	case of inserting one element at the end work again (where index ==
-	len).
-	(Tcl_LreplaceObjCmd): moved Tcl_DuplicateObj call lower and cleaned
-	up use of other arguments.
-
-	* generic/tclObj.c (Tcl_DuplicateObj): simplified code to call
-	TclInitStringRep, which the code was just duplicating in part.
-
-	* doc/Utf.3:
-	* generic/tclStubInit.c:
-	* generic/tcl.decls:
-	* generic/tclDecls.h:
-	* generic/tclUtf.c: Added new functions Tcl_UniCharNcasecmp and
-	Tcl_UniCharCaseMatch (unicode parallel to Tcl_StringCaseMatch)
-	* generic/tclUtil.c: rewrote Tcl_StringCaseMatch algorithm for
-	optimization and made Tcl_StringMatch just call Tcl_StringCaseMatch
-	* tests/string.test: extended string match tests
-
-2000-05-08  Eric Melski  <ericm@scriptics.com>
-
-	* tests/set-old.test:
-	* doc/array.n:
-	* generic/tclVar.c: Added [array statistics] command [RFE: 4557]
-
-2000-05-06  Andreas Kupries <a.kupries@westend.com>
-	operating as proxy for David Gravereaux <davygrvy@pobox.com>
-
-	* tclThreadJoin.c: Fixed several places with missing a & in arguments
-	to calls of Tcl_Mutex(Un)lock and Tcl_ConditionNotify functions.
-
-2000-05-02  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* README:
-	* generic/tcl.h:
-	* library/init.tcl:
-	* library/reg1.0/pkgIndex.tcl:
-	* library/tcltest1.0/tcltest.tcl:
-	* mac/README:
-	* tools/tcl.hpj.in:
-	* tools/tcl.wse.in:
-	* unix/README:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/README:
-	* win/README.binary:
-	* win/configure.in:
-	* win/makefile.vc:
-	* win/tcl.m4: updated patchlevel to 8.4a1
-
-	* tests/compile.test:
-	* tests/init.test:
-	* tests/proc.test:
-	* tests/proc-old.test:
-	* tests/rename.test:
-	* generic/tclProc.c: reworked error return for procedures with
-	incorrect args to be like the C Tcl_WrongNumArgs, where a "wrong #
-	args: ..." message is printed out with the args list.
-
-	* unix/Makefile.in: add tclsh.ico and tcl.spec to dist target
-
-2000-05-02  Andreas Kupries <a.kupries@westend.com>
-
-	Overall changes:
-	  (1) Implementation of joinable threads for all platforms.
-	  (2) Additional API's for channels. Required to allow the thread
-	      extension to move channels between threads.
-
-	* generic/tcl.decls (lines 1360f): Added Tcl_JoinThread,
-	Tcl_IsChannelShared, Tcl_IsChannelRegistered, Tcl_CutChannel,
-	Tcl_SpliceChannel, Tcl_IsChannelExisting and Tcl_ClearChannelHandlers
-	(slots 394 to 400).
-
-	* generic/tclIO.c: Implemented Tcl_IsChannelRegistered,
-	Tcl_IsChannelShared, Tcl_CutChannel, Tcl_SpliceChannel,
-	Tcl_IsChannelExisting and Tcl_ClearChannelHandlers.  Tcl_CutChannel
-	uses code from CloseChannel. Replaced this code by a call to
-	Tcl_CutChannel. Replaced several code fragments adding channels to
-	the channel list with calls to Tcl_SpliceChannel. Removed now unused
-	variables from CloseChannel and Tcl_UnstackChannel.
-	Tcl_ClearChannelHandlers uses code from Tcl_Close. Replaced this code
-	by a call to Tcl_ClearChannelHandlers. Removed now unused variables
-	from Tcl_Close. Added the subcommands 'cut', 'forgetch', 'splice' and
-	'isshared' to the test code (TclTestChannelCmd).
-
-	* unix/tclUnixThread.c: Implemented Tcl_JoinThread using the
-	pthread-functionality.
-
-	* win/tclWinThrd.c: Fixed several small typos in comments.
-	Implemented Tcl_JoinThread using a platform independent emulation
-	layer (see generic/tclThreadJoin.c below). Added 'joinLock' to
-	serialize Tcl_CreateThread and TclpExitThread to prevent a race for
-	joinable threads.
-
-	* mac/tclMacThrd.c: Implemented Tcl_JoinThread using a platform
-	independent emulation layer (see generic/tclThreadJoin.c below). Due
-	to the cooperative nature of threading on this platform the race
-	mentioned above is not present.
-
-	* generic/tclThreadJoin.c: New file. Contains a platform independent
-	emulation layer helping in the implementation of joinable threads for
-	the win and mac platforms.
-
-	* generic/tclInt.h: Added declarations for TclJoinThread,
-	TclRememberJoinableThread and TclSignalExitThread. These procedures
-	define the API of the emulation layer for joinable threads (see
-	generic/tclThreadJoin.c above).
-
-	* win/Makefile.in:
-	* win/makefile.vc: Added generic/tclTheadJoin.o to the rules.
-
-	* mac/: I don't know to which file generic/tclTheadJoin.o has to be
-	added to so that it compiles. Sorry.
-
-	* unix/tclUnixChan.c: #ifdef'd the thread-local list of file channels
-	as it prevents us from transfering channels. To restore this we may
-	need an extended interface to drivers in the future. Target:
-	9.0. Found while testing the new transfer of channels. The information
-	in this list for a channel was left behind and then crashed the system
-	during finalization.
-
-	* generic/tclThreadTest.c: Added -joinable flag to 'testthread
-	create'. Added subcommand 'testthread join'.
-
-	* doc/CrtChannel.3: Added documentation for Tcl_IsChannelRegistered,
-	Tcl_IsChannelShared, Tcl_CutChannel, Tcl_SpliceChannel,
-	Tcl_IsChannelExisting and Tcl_ClearChannelHandlers.
-
-	* doc/Thread.3: Added documentation for Tcl_JoinThread.
-
-	* tests/thread.test: Added tests for joining of threads.
-
-2000-04-27  Eric Melski  <ericm@scriptics.com>
-
-	* doc/library.n: Added entries for auto_qualify and auto_import
-	[Bug: 1271].
-
-	* doc/Init.3: Manual entry for Tcl_Init [Bug: 1820].
-
-	* doc/expr.n: Added documentation for each of the math library
-	functions that expr supports [Bug: 1054].
-
-2000-04-26  Eric Melski  <ericm@scriptics.com>
-
-	* doc/memory.n: Man page for Tcl "memory" command, which is created
-	when TCL_MEM_DEBUG is defined at compile time.
-
-	* doc/TCL_MEM_DEBUG.3: Man page with overall information about
-	TCL_MEM_DEBUG usage.
-
-	* doc/DumpActiveMemory.3: Man page for Tcl_DumpActiveMemory,
-	Tcl_InitMemory, and Tcl_ValidateAllMemory [Bug: 1816, 1835].
-
-	* generic/tclCkalloc.c: Fixed some function headers.
-
-	* unix/mkLinks: Regen'd with new mkLinks.tcl.
-
-	* unix/mkLinks.tcl: Fixed indentation, made link setup more
-	intelligent (only do one existance test per man page, instead of one
-	per function).
-
-	* doc/library.n: Fixed .SH NAME macro to include each function
-	documented on the page, so that mkLinks will know about the functions
-	listed there, and so that the Windows help file index will get set up
-	correctly [Bug: 1898, 5273].
-
-2000-04-26  Jeff Hobbs  <hobbs@scriptics.com>
-
-	8.3.1 RELEASE
-
-	* README:
-	* mac/README:
-	* tools/tcl.wse.in:
-	* unix/README:
-	* unix/tcl.spec:
-	* win/README:
-	* win/README.binary: Updating URLs to reference dev.scriptics.com
-
-2000-04-25  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* unix/Makefile.in:
-	* win/Makefile.in:
-	* win/makefile.vc: updated for http change and some cleanup
-	* library/http2.[13]: moved dir http2.1 to http2.3 to match version
-
-	* doc/Utf.3: clarified docs for Tcl_(UniChar|Utf)AtIndex
-
-	* unix/tclUnixThrd.c: removed {}s around PTHREAD_MUTEX_INITIALIZER
-	[Bug: 5254]
-
-	* unix/tclLoadDyld.c (TclpLoadFile): removed use of interp->result
-
-2000-04-25  Eric Melski  <ericm@scriptics.com>
-
-	* unix/mkLinks:
-	* doc/AddErrInfo.3: Added information about Tcl_LogCommandInfo
-	[Bug: 1818].
-
-2000-04-24  Eric Melski  <ericm@scriptics.com>
-
-	* unix/mkLinks:
-	* doc/OpenFileChnl.3: Added man entry for Tcl_Ungets [Bug: 1834].
-
-	* unix/mkLinks:
-	* doc/SourceRCFile.3: Man page for Tcl_SourceRCFile [Bug: 1833].
-
-	* unix/mkLinks:
-	* doc/ParseCmd.3: Added documentation for Tcl_ParseVar [Bug: 1828].
-
-2000-04-24  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* unix/tclUnixNotfy.c (Tcl_FinalizeNotifier, NotifierThreadProc):
-	added write of 'q' into triggerPipe for notifier in threaded case, so
-	that Tcl doesn't hang when children are still running [Bug: 4139]
-
-	* unix/tclUnixThrd.c (Tcl_MutexLock): minor comment fixes.
-
-2000-04-23  Jim Ingham  <jingham@cygnus.com>
-
-	These changes make some error handling marginally better for Mac
-	sockets. It is still somewhat flakey, however.
-
-	* mac/tclMacSock.c (TcpClose): Add timeouts to the close - these don't
-	seem to be honored, however. Use a separate PB for the release, since
-	an async connect socket will still be using the original buffer. Make
-	sure TCPRelease returns noErr before freeing the recvBuff. If the call
-	returns an error, then the buffer is not right.
-	* mac/tclMacSock.c (CreateSocket): Add timeouts to the async create.
-	These don't seem to trigger, however. Sigh...
-	* mac/tclMacSock.c (WaitForSocketEvent): If an TCP_ASYNC_CONNECT
-	socket errors out, then return EWOULDBLOCK & error out.
-	* mac/tclMacSock.c (NotifyRoutine): Added a NotifyRoutine for
-	experimenting with MacTCP.
-
-2000-04-22  Jim Ingham <jingham@cygnus.com>
-
-	* library/package.tcl (tclPkgUnknown): Fixed a typo in the Mac package
-	search part of tclPkgUnknown.
-
-2000-04-21  Sandeep Tamhankar <sandeep@scriptics.com>
-
-	* library/http2.1/http.tcl: Fixed a newly introduced bug where if
-	there's a -command callback and something goes wrong, geturl threw an
-	exception, called the callback, and unset the token. I changed it so
-	that it will not call the callback when throwing an exception (so the
-	caller only finds out about a given error from one place).  Also,
-	fixed http::ncode so that it actually gives you back the http return
-	code (i.e. 200, 404, etc.) instead of the first digit of the version
-	of HTTP being used (i.e. 1).
-
-2000-04-21  Brent Welch <welch@scriptics.com>
-
-	* library/http2.1/http.tcl: More thrashing with the "server closes
-	without reading post data" scenario. Reverted to the previous filevent
-	configuratiuon, which seems to work better with small amounts of post
-	data.
-
-2000-04-20  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclAlloc.c: wrapped caddr_t define to not be done on Unix
-	* unix/tclUnixPort.h: added Tclp*Alloc defines to allow the use of
-	USE_TCLALLOC on Unix. [Bug: 4731]
-
-2000-04-19  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* library/dde1.1/pkgIndex.tcl:
-	* library/reg1.0/pkgIndex.tcl:
-	* win/tclWinChan.c:
-	* win/tclWinThrd.c: converted CRLF to LF the */tcl.hpj.in files were
-	not converted, as it confuses hcw locally. [Bug: 5096]
-
-	* win/Makefile.in: expanded cleanup target for help files
-
-	* doc/Thread.3: minor macro cleanup
-
-	* generic/tclFileName.c (SplitUnixPath): added support for QNX node
-	ids.
-
-2000-04-18  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* README:
-	* generic/tcl.h:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-	* win/README.binary: bumped version to 8.3.1
-
-	* win/tcl.hpj.in: updated copyright date
-
-	* generic/tclEnv.c: environment support for Mac OS/X
-	* unix/tclUnixPort.h: environment support for Mac OS/X
-	* unix/tclLoadDyld.c: new file for Mac OS/X dl functions
-	* unix/Makefile.in: added install-strip target; bindir, libdir,
-	mandir, includedir vars; tclLoadDyld.c target [Bug: 2527]
-
-	* unix/tclUnixChan.c (CreateSocket): force a socket back into blocking
-	mode (default state) after a -async connect succeeds. [Bug: 4388]
-
-	* generic/tclEvent.c (TclInitSubsystems): Moved tclLibraryPath to
-	thread-local storage to prevent thread-related race condition.
-	[Bug: 5033]
-	* unix/tclAppInit.c (main): removed #ifdef TCL_TEST that sets the
-	library path as it was unnecessary and conflicts with move of
-	tclLibraryPath to thread-local storage.
-
-2000-04-18  Scott Redman  <redman@scriptics.com>
-
-	* win/Makefile.in:
-	* win/tcl.rc:
-	* win/tclsh.rc:
-	* win/tclsh.ico:  Modified copyright dates in Windows resource files.
-	Added an icon for tclsh.exe.
-
-2000-04-17  Brent Welch <welch@scriptics.com>
-
-	* generic/tcl.h, generic/tclThreadTest.c, unix/tclUnixThrd.c,
-	* win/tclWinThread.c, mac/tclMacThread.c: Added Tcl_CreateThreadType
-	and TCL_RETURN_THREAD_TYPE macros for declaring the NewThread callback
-	proc.
-
-2000-04-14  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* unix/tclUnixChan.c (TtyParseMode): Only allow setting mark/space
-	parity on platforms that support it [Bug: 5089]
-
-	* generic/tclBasic.c (Tcl_GetVersion): adjusted use of major/minor to
-	not conflict with global decl on some systems [Bug: 2882]
-
-	* doc/AppInit.3:
-	* doc/Async.3:
-	* doc/BackgdErr.3:
-	* doc/CrtChannel.3:
-	* doc/CrtInterp.3:
-	* doc/CrtMathFnc.3:
-	* doc/DString.3:
-	* doc/Eval.3:
-	* doc/ExprLong.3:
-	* doc/GetInt.3:
-	* doc/GetOpnFl.3:
-	* doc/Interp.3:
-	* doc/LinkVar.3:
-	* doc/OpenFileChnl.3:
-	* doc/OpenTcp.3:
-	* doc/PkgRequire.3:
-	* doc/RecordEval.3:
-	* doc/SetResult.3:
-	* doc/SplitList.3:
-	* doc/StaticPkg.3:
-	* doc/TraceVar.3:
-	* doc/Translate.3:
-	* doc/UpVar.3:
-	* doc/load.n: removed or updated references to interp->result use.
-
-2000-04-13  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* doc/regexp.n: doc clarification [Bug: 5037]
-	* doc/update.n: typo fix [Bug: 4996]
-
-	* unix/tcl.m4 (SC_ENABLE_THREADS): enhanced the detection of
-	pthread_mutex_init [Bug: 4359] and (SC_CONFIG_CFLAGS) added
-	--enable-64bit-vis switch for Sparc VIS compilation [Bug: 4995]
-
-2000-04-12  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* doc/dde.n: corrected dde poke docs. [Bug: 4991]
-
-2000-04-11  Eric Melski  <ericm@scriptics.com>
-
-	* win/tclWinPipe.c: Added "CONST" keyword to declaration of char
-	*native in TclpCreateTempFile, to supress compiler warnings.
-
-2000-04-10  Brent Welch <welch@scriptics.com>
-
-	* generic/tcl.h: Fixed Tcl_CreateThread declaration.
-	* library/tcltest1.0/tcltest.tcl: Fixed the "mainThread"
-	initialization to work with either testthread or the thread extension
-	* unix/tclUnixThrd.c: Fixed compiler warning when compiling with
-	-DTCL_THREADS
-
-2000-04-10  Eric Melski  <ericm@scriptics.com>
-
-	* win/tclWinPipe.c (TclpCreateTempFile): Added conversion of contents
-	string from UTF to native encoding [Bug: 4030].
-
-	* tests/regexp.test: Added tests for infinite looping in [regexp
-	-all].
-
-	* generic/tclCmdMZ.c: Fixed infinite loop bug with [regexp -all]
-	[Bug: 4981].
-
-	* tests/*.test: Changed all occurances of "namespace import
-	::tcltest" to "namespace import -force ::tcltest" [Bug: 3948].
-
-2000-04-09  Brent Welch <welch@scriptics.com>
-
-	* lib/httpd2.1/http.tcl: Worked on the "server closes before reading
-	post data" case, which unfortunately causes different error cases on
-	Solaris, which can read the reply, and Linux and Windows, which cannot
-	read anything. This is all in the loop-back case - client and server
-	on the same host. Also unified the error handling so the "ioerror"
-	status goes away and errors are reflected in a more uniform way.
-	Updated the man page to document the behavior.
-
-2000-04-09  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* tests/reg.test (matchexpected): corrected tests to use tcltest
-	constraint types to skip certain tests.
-
-	* generic/tclBasic.c (Tcl_SetCommandInfo): comment fix
-
-	* unix/tclUnixThrd.c (Tcl_CreateThread): moved TCL_THREADS ifdef
-	inside of func as it is declared for non-threads builds as well. In
-	the non-threads case, it always returns TCL_ERROR (couldn't create
-	thread).
-
-2000-04-08  Andreas Kupries <a.kupries@westend.com>
-
-	* Overall change: Definition of a public API for the creation of
-	new threads.
-
-	* generic/tclInt.h (line 1802f): Removed the definition of
-	'TclpThreadCreate'. (line 793f) Removed the definition of
-	'Tcl_ThreadCreateProc'.
-
-	* generic/tcl.h (line 388f): Readded the definition of
-	'Tcl_ThreadCreateProc'. Added Win32 stuff send in by David Graveraux
-	<davygrvy@bigfoot.com> to that too (__stdcall, ...). Added macros for
-	the default stacksize and allowed flags.
-
-	* generic/tcl.decls (line 1356f): Added definition of
-	'Tcl_CreateThread', slot 393 of the stub table. Two new arguments in
-	the public API, for stacksize and flags.
-
-	* win/tclWinThrd.c:
-	* mac/tclMacThrd.c: Renamed TclpThreadCreate to Tcl_CreateThread,
-	added handling of the stacksize. Flags are currently ignored.
-
-	* unix/tclUnixThrd.c: See above, but handles joinable flag. Ignores
-	the specified stacksize if the macro HAVE_PTHREAD_ATTR_SETSTACKSIZE is
-	not defined.
-
-	* generic/tclThreadTest.c (line 363): See below.
-
-	* unix/tclUnixNotfy.c (line 210): Adapted to the changes above. Uses
-	default stacksize and no flags now.
-
-	* unic/tcl.m4 (line 382f): Added a check for
-	'pthread_attr_setstacksize' to detect platforms not implementing this
-	feature of pthreads. If it is implemented, configure will define the
-	macro HAVE_PTHREAD_ATTR_SETSTACKSIZE (See unix/tclUnixThrd.c too).
-
-	* doc/Thread.3: Added Tcl_CreateThread and its arguments to the list
-	of described functions. Removed stuff about not providing a public
-	C-API for thread-creation.
-
-2000-04-07  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* doc/binary.n: clarified docs on sign extension in binary scan [Bug:
-	3466]
-
-	* library/tcltest1.0/tcltest.tcl (initConstraints): removed win32s
-	references (no longer supported)
-
-	* tests/fCmd.test: marked test 8.1 knownBug because it is dangerous on
-	poorly configured systems [Bug: 3881] and added 8.2 to keep essence of
-	8.1 tested.
-
-2000-04-05  Andreas Kupries <a.kupries@westend.com>
-
-	* generic/tclIO.c (Tcl_UnstackChannel, line 1831): Forcing interest
-	mask to the correct value after an unstack and re-initialization of
-	the notifier via the watchProc. Without this the first fileevent after
-	an unstack will come through and be processed, but no more. [Bug: ??].
-
-2000-03-04  Brent Welch  <welch@scriptics.com>
-
-	* {win,unix}/Makefile.in: added dependency of tclStubInit.c on
-	tcl.decls and tclInt.decls
-	* generic/tclThread.c: Tweak so this compiles w/out TCL_THREADS
-	* generic/{tcl.decls,tclStubInit.c}:  Just touched the tcl.decls and
-	regenerated the tclStubInit.c file
-
-2000-03-29  Sandeep Tamhankar <sandeep@scriptics.com>
-
-	* library/http2.1/http.tcl: For the -querychannel option, fconfigure
-	the socket to be binary so that we don't translate anything while
-	reading the data. This is because we determine the content length of
-	the data on the channel by using seek (to the end of the file) and
-	tell on the file handle, and we need the content-length to match the
-	amount of data actually sent, and translation can affect the number of
-	bytes posted.
-
-2000-04-03  Andreas Kupries <a.kupries@westend.com>
-
-	* Overall change: Definition of public API's for the finalization of
-	conditions and mutexes. [Bug: 4199].
-
-	* generic/tclInt.h: Removed definitions of TclFinalizeMutex and
-	TclFinalizeCondition.
-
-	* generic/tcl.decls: Added declarations of Tcl_MutexFinalize and
-	Tcl_ConditionFinalize.
-
-	* generic/tclThread.c: Renamed TclFinalizeMutex to Tcl_MutexFinalize.
-	Renamed TclFinalizeCondition to Tcl_ConditionFinalize.
-
-	* generic/tclNotify.c: Changed usage of TclFinalizeMutex to
-	Tcl_MutexFinalize.
-
-	* unix/tclUnixNotfy.c:
-	* generic/tclThreadTest.c: Changed usages of TclFinalizeCondition to
-	Tcl_ConditionFinalize.
-
-	* generic/tcl.h: Added empty macros for Tcl_MutexFinalize and
-	Tcl_ConditionFinalize, to be used when the core is compiled without
-	threads.
-
-	* doc/Thread.3:	Added description the new API's.
-
-2000-04-03  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclCmdIL.c (InfoVarsCmd): checked for non-NULL procPtr to
-	prevent itcl info override crash [Bug: 4064]
-
-	* tests/foreach.test:
-	* tests/namespace.test:
-	* tests/var.test: Added lsorts to avoid random sorted return
-	problems. [Bug: 2682]
-
-	* tests/fileName.test: fixed 14.1 test fragility [Bug: 1482]
-
-	* tools/man2help2.tcl: fixed winhelp cross-linking error [Bug: 4156]
-	improved translation to winhelp [Bug: 3679]
-
-	* unix/Makefile.in (MAN_INSTALL_DIR): patch to accept --mandir
-	correctly [Bug: 4085]
-
-	* unix/dltest/pkg[a-e].c: Cleaned up test packages [Bug: 2293]
-
-2000-04-03  Eric Melski  <ericm@scriptics.com>
-
-	* unix/tclUnixFCmd.c (SetGroupAttribute):
-	* unix/tclUnixFCmd.c (SetOwnerAttribute): Added (uid_t) and (gid_t)
-	casts to avoid compiler warnings.
-
-2000-03-31  Eric Melski  <ericm@scriptics.com>
-
-	* generic/tclGet.c (Tcl_GetDouble): Added additional conditions to
-	error test (previously only errno was checked, but the return value of
-	strtod() should be checked as well). [Bug: 4118]
-
-	* tests/exec.test: Added test for proper conversion of UTF data when
-	used with "<< $dataWithUTF" on exec's.
-
-	* unix/tclUnixPipe.c (TclpCreateTempFile): Added
-	Tcl_UtfToExternalDString call, so that if there is UTF content in the
-	string it will be properly converted to the system encoding before
-	being written [Bug: 4030].
-	(TclpCreateTempFile): Added a check on the return value of tmpnam;
-	some systems (Linux, for example) will start to return NULL after
-	tmpnam has been called TMP_MAX times; not checking for this can have
-	bad results (overwriting temp files, core dumps, etc.)
-
-2000-03-30  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclBasic.c (Tcl_DeleteCommandFromToken): Added comments
-	noting the need to pair ckalloc with ckfree. [Bug: 4262]
-
-	* generic/tclInt.decls:
-	* generic/tclIntPlatDecls.h:
-	* generic/tclStubInit.c:
-	* win/tclWin32Dll.c: removed TclWinSynchSpawn (vestige of Win32s
-	support).
-
-	* win/tclWinReg.c: made use of TclWinGetPlatformId instead of getting
-	info again
-
-	* win/tclWinPort.h:
-	* win/Makefile.in:
-	* win/configure.in:
-	* win/tcl.m4: Added support for gcc/mingw on Windows [Bug: 4234]
-
-2000-03-29  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclCompile.c (TclCleanupByteCode): made ByteCode cleanup
-	more aware of TCL_BYTECODE_PRECOMPILED flagged structs (gen'd by
-	tbcload), to correctly clean them up.
-
-	* generic/tclClock.c (FormatClock): moved check for empty format
-	earlier, commented 0 result return value
-
-2000-03-29  Sandeep Tamhankar <sandeep@scriptics.com>
-
-	* library/http2.1/http.tcl: Removed an unnecessary fileevent statement
-	from the error processing part of the Write method. Also, fixed two
-	potential memory leaks in wait and reset, in which the state array
-	wasn't being unset before throwing an exception. Prior to this
-	version, Brent checked in a fix to catch a fileevent statement that
-	was sometimes causing a stack trace when geturl was called with
-	-timeout. I believe Brent's fix is necessary because TLS closes bad
-	sockets for secure connections, and the fileevent was trying to act on
-	a socket that no longer existed.
-
-2000-03-27  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* tests/httpd: removed unnecessary 'puts stderr "Post Dispatch"'
-
-	* tests/namespace.test:
-	* generic/tclNamesp.c (Tcl_Export): added a uniq'ing test to the
-	export list so only one instance of each export pattern would exist in
-	the list.
-
-	* generic/tclExecute.c (TclExecuteByteCode): optimized case for the
-	empty string in ==/!= comparisons
-
-2000-03-27  Eric Melski  <ericm@scriptics.com>
-
-	* unix/tclUnixChan.c: Added (off_t) type casts in lseek() call [Bug:
-	4409].
-
-	* unix/tclLoadAout.c:
-	* unix/tclUnixPipe.c: Added (off_t) type casts in lseek() calls [Bug:
-	4410].
-
-2000-03-22  Sandeep Tamhankar <sandeep@scriptics.com>
-
-	* library/http2.1/http.tcl: Fixed a bug where string query data that
-	was bigger than queryblocksize would get duplicate characters at block
-	boundaries.
-
-2000-03-22  Sandeep Tamhankar <sandeep@scriptics.com>
-
-	* library/http2.1/http.tcl: Fixed bug 4463, where we were getting a
-	stack trace if we tried to publish a project to a good host but a port
-	where there was no server listening.  It turned out the problem was a
-	stray fileevent that needed to be cleared.  Also, fixed a bug where
-	http::code could stack trace if called on a bad token (one which
-	didn't represent a successful geturl) by adding an http element to the
-	state array in geturl.
-
-2000-03-21  Eric Melski  <ericm@scriptics.com>
-
-	* tests/clock.test: Modified some tests that were not robust with
-	respect to the time zone in which they were run and were thus failing.
-
-	* doc/clock.n: Clarified meaning of -gmt with respect to -base when
-	used with [clock scan] (-gmt does not affect the interpretation of
-	-base).
-
-2000-03-19  Sandeep Tamhankar <sandeep@scriptics.com>
-
-	* library/http2.1/http.tcl: geturl used to throw an exception when the
-	connection failed; I accidentally returned a token with the error
-	info, breaking backwards compatibility. I changed it back to throwing
-	an exception, but unsetting the state array first (thus still
-	eliminating the original memory leak problem).
-
-2000-03-19  Sandeep Tamhankar <sandeep@scriptics.com>
-
-	* library/http2.1/http.tcl: Added -querychannel option and altered
-	some of Brent's modifications to allow asynchronous posts (via
-	-command). Also modified -queryprogress so that it calls the query
-	callback as <callback> <token> <total size> <current size> to be
-	consistent with -progress. Added -queryblocksize option with default
-	8192 bytes for post blocksize. Fixed a bunch of potential memory leaks
-	for the case when geturl receives bad args or can't open a socket,
-	etc. Overall, the package really rocks now.
-
-	* doc/http.n: Added -queryblocksize, -querychannel, and
-	-queryprogress. Also, changed the description of -blocksize, which
-	states that the -progress callback will be called for each block, to
-	now qualify that with an "if -progress is specified".
-
-	* tests/http.test: Added a querychannel test for synchronous and
-	asynchronous posts, altered the queryprogress test such that the
-	callback conforms to the -progress format. Also, had to use the
-	-queryblocksize option to do the post 16K at a time to match Brent's
-	expected results (and to test that -queryblocksize works).
-
-2000-03-15  Brent Welch <welch@scriptics.com>
-
-	* library/http2.1/http.tcl: Added -queryprogress callback to
-	http::geturl and also changed it so that writing the post data is
-	event driven if the queryprogress callback or a timeout is given.
-	This allows a timeout to occur when writing lots of post data. The
-	queryprogress callback is called after each block of query data is
-	posted. It has the same signature as the -progress callback.
-
-2000-03-06  Eric Melski  <ericm@scriptics.com>
-
-	* library/package.tcl: Applied patch from Bug: 2570; rather than
-	setting geometry of slave interp to 0x0 when Tk was loaded, it now
-	does "wm withdraw .". Both remove the main window from the display,
-	but the former caused some internal structures to get initialized to
-	zero, which caused crashes with some extensions.
-
-2000-03-02  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* library/package.tcl (tclPkgUnknown): extended to allow recognizes
-	changes in the auto_path while sourcing in other pkgIndex.tcl files
-
-	* doc/FindExec.3: fixed doc for declaration of Tcl_FindExecutable
-	[Bug: 4275]
-
-	* generic/tclFileName.c (Tcl_TranslateFileName): Applied patch from
-	Newman to significantly speedup file split/join on Windows (replaces
-	regexp with custom parser). [Bug: 2867]
-
-	* win/README.binary: change mailing lists from @consortium.org to
-	@scriptics.com [Bug: 4173]
-
-2000-02-28  Eric Melski  <ericm@scriptics.com>
-
-	* tests/clock.test: Added test for ISO bases < 100000
-
-	* generic/tclDate.c: (generated on Solaris)
-	* generic/tclGetDate.y: Changed condition for deciding if a number is
-	an ISO 8601 base from number >= 100000 to numberOfDigits >= 6.
-	Previously it would fail to recognize 000000 as an ISO base.
-
-2000-02-14  Eric Melski  <ericm@scriptics.com>
-
-	* unix/Makefile.in: Added rpm target to generate Tcl binary RPM.
-
-	* unix/tcl.spec: RPM specification file for a Tcl binary RPM for
-	Linux.
-
-2000-02-10  Jeff Hobbs  <hobbs@scriptics.com>
-
-	8.3.0 RELEASE
-
-	* changes: updated for 8.3.0 release
-
-	* doc/load.n: added notes about dll load errors on Windows
-
-	* unix/README:
-	* unix/Makefile.in (dist): removed porting.notes and porting.old from
-	distribution and CVS.  The information was very outdated. Now refer to
-	http://dev.scriptics.com/services/support/platforms.html
-
-	* tests/unixInit.test: fixed japanese LANG encoding test [Bug: 3549]
-
-	* unix/configure.in:
-	* unix/tcl.m4: correct CFLAG_WARNING setting, fixed gcc config for
-	AIX, added -export-dynamic to LDFLAGS for FreeBSD-3+ [Bug: 2998]
-
-	* win/tclWinLoad.c (TclpLoadFile): improved error message for load
-	failures, could perhaps be even more intelligent.
-
-2000-02-09  Jim Ingham	 <jingham@cygnus.com>
-
-	* mac/tclMacSock.c: Don't panic when you get an error closing an async
-	socket. This doesn't seem to hurt anything, and we return the error so
-	the caller can do the right thing.
-
-	New Files:
-	* mac/MW_TclHeader.h:
-	* mac/MW_TclTestHeader.h:
-	* mac/MW_TclTestHeader.pch:
-	* mac/MW_TclAppleScriptHeader.h: More convenient to use .h prefix
-	files in the preference panels...
-
-	The above are curtesy of Daniel Steffen (steffen@math.mq.edu.au)
-
-2000-02-08  Eric Melski  <ericm@scriptics.com>
-
-	* tests/clock.test: Added tests for "next monthname" constructs.
-	* generic/tclDate.c:
-	* generic/tclGetDate.y (Message): Added a grammar rule for "next
-	monthname" so that we can handle "next january" and similar constructs
-	(bug #4146).
-
-2000-02-08  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* README:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* win/configure.in:
-	* win/README:
-	* win/README.binary:
-	* generic/tcl.h (TCL_RELEASE_SERIAL): Moved to 8.3.0 patchlevel
-
-	* doc/library.n:
-	* library/auto.tcl: fixed crufty puts code and docs [Bug: 4122]
-
-	* library/tcltest1.0/tcltest.tcl: correctly protected searchDirectory
-	list to allow dirnames with spaces
-
-	* unix/tcl.m4: changed all -fpic to -fPIC
-
-	* generic/tclDecls.h:
-	* generic/tcl.decls: change Tcl_GetOpenFile to use decl of 'int
-	forWriting' instead of 'int write' to avoid shadowing [Bug: 4121]
-
-	* tests/httpold.test: changed test script to source in the httpd
-	server procs from httpd instead of having its own set.
-
-	* tests/httpd: improved query support in test httpd to handle fix in
-	http.tcl. [Bug: 4089 change 2000-02-01]
-
-	* unix/README: fixed notes about --enable-shared and add note about
-	--disable-shared.
-
-2000-02-07  Eric Melski  <ericm@scriptics.com>
-
-	* tests/package.test:
-	* library/tclIndex:
-	* library/package.tcl: Renamed ::package namespace to ::pkg.
-
-2000-02-03  Eric Melski <ericm@scriptics.com>
-
-	* doc/Package.n:
-	* doc/packagens.n: Renamed Package.n -> packagens.n because Windows
-	can't deal with case-sensitive names.
-
-2000-02-02  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* tests/regexp.test: added tests for -all and -inline switches
-	* doc/regexp.n: added docs for -all and -inline switches
-	* generic/tclCmdMZ.c (Tcl_RegexpObjCmd): added extra comments for new
-	-all and -inline switches to regexp command
-
-2000-02-01  Eric Melski  <ericm@scriptics.com>
-
-	* library/init.tcl: Applied patch from rfe 1734 regarding auto_load
-	errors not setting error message and errorInfo properly.
-
-2000-02-01  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* win/Makefile.in (install-*): reduced verbosity of install
-
-	* generic/tclFileName.c (Tcl_JoinPath): improved support for special
-	QNX node id prefixes in pathnames [Bug: 4053]
-
-	* library/http1.0/http.tcl:
-	* library/http2.1/http.tcl: The query data POSTed was newline
-	terminated when it shouldn't be altered [Bug: 4089]
-
-2000-01-31  Eric Melski  <ericm@scriptics.com>
-
-	* tests/package.test:
-	* library/tclIndex:
-	* library/package.tcl: Added ::package namespace and ::package::create
-	function.
-
-	* library/init.tcl: Fixed problem with auto_load and determining if
-	commands were loaded.
-
-	* library/auto.tcl: "Fixed" issues with $ in files to be auto indexed.
-
-	* doc/Package.n: New man page for package::create function.
-
-	* doc/pkgMkIndex.n: Added additional information.
-
-	* doc/library.n: Added additional qualification regarding auto_mkindex.
-
-2000-01-28  Eric Melski  <ericm@scriptics.com>
-
-	* tests/pkg/magicchar2.tcl:
-	* tests/autoMkindex.test: Test for auto loader fix (bug #2480).
-
-	* library/init.tcl: auto_load was using [info commands $name] to
-	determine if a given command was available; if the command name had *
-	or [] it, this would fail because info commands uses glob-style
-	matching. This is fixed. (Bug #2480).
-
-	* tests/pkg/spacename.tcl:
-	* tests/pkgMkIndex.test: Tests for fix for bug #2360.
-
-	* library/package.tcl: Fixed to extract only the first element of the
-	list returned by auto_qualify (bug #2360).
-
-	* tests/pkg/magicchar.tcl:
-	* tests/autoMkindex.test: Test for fix for bug #2611.
-
-	* library/auto.tcl: Fixed the regular expression that performs $
-	escaping before sourcing a file to index. It was erroneously adding \
-	escapes even to $'s that were already escaped, effectively
-	"un-escaping" those $'s. (bug #2611).
-
-2000-01-27  Eric Melski  <ericm@scriptics.com>
-
-	* tests/autoMkindex.test:
-	* library/auto.tcl: Applied patch (with slight modification) from bug
-	#2701: auto_mkIndex uses platform dependent file paths. Added test for
-	fix.
-
-2000-01-27  Jennifer Hom  <jenn@scriptics.com>
-
-	* library/tcltest1.0/tcltest.tcl: Changed NormalizePath to
-	normalizePath and exported it as a public proc. This proc creates an
-	absolute path given the name of the variable containing the path to
-	modify. The path is modified in place.
-	* library/tcltest1.0/pkgIndex.tcl: Added normalizePath.
-	* tests/all.tcl: Changed code to use normalizePath.
-
-2000-01-27  Eric Melski  <ericm@scriptics.com>
-
-	* tests/pkg/samename.tcl: test file for bug #1983
-
-	* tests/pkgMkIndex.test:
-	* doc/pkgMkIndex.n:
-	* library/package.tcl: Per rfe #4097, optimized creation of direct
-	load packages to bypass computing the list of commands added by the
-	new package. Also made direct loading the default, and added a -lazy
-	option.
-	Fixed bug #1983, dealing with pkg_mkIndex incorrectly handling
-	situations with two procs by the same name but in different namespaces
-	(ie, foo::baz and bar::baz).
-
-2000-01-26  Eric Melski  <ericm@scriptics.com>
-
-	* generic/tclNamesp.c: Undid fix for #956, which broke backwards
-	compatibility.
-
-	* doc/variable.n:
-	* doc/trace.n:
-	* doc/namespace.n:
-	* doc/info.n: Added further information about differences between
-	"namespace which" and "info exists".
-
-	* doc/SetErrno.3: Added descriptions of ErrnoId() and ErrnoMsg()
-	functions.
-
-2000-01-25  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* unix/tcl.m4: modified EXTRA_CFLAGS to add -DHAVE_TZSET for OSF1-V*
-	and ULTRIX-4.* when not using gcc. Also added higher min stack size
-	for OSF1-V* when building with threads. [Bug: 4063]
-
-	* generic/tclClock.c (FormatClock): inlined resultPtr, as it
-	conflicted with var creation for HAVE_TZSET #def [Bug: 4063]
-
-	* generic/tclCmdIL.c (Tcl_LsortObjCmd): fixed potential leak when
-	calling lsort -command with bad command [Bug: 4067]
-
-	* generic/tclFileName.c (Tcl_JoinPath): added support for special QNX
-	node id prefixes in pathnames [Bug: 4053]
-
-	* doc/ListObj.3: clarified Tcl_ListObjGetElements docs [Bug: 4080]
-
-	* doc/glob.n: clarified Mac path separator determination docs.
-
-	* win/makefile.vc: added some support for building helpfile on Windows
-
-2000-01-23  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* library/init.tcl (auto_execok): added 'start' to list of recognized
-	built-in commands for COMSPEC on NT. [Bug: 2858]
-
-	* unix/tclUnixPort.h: moved include of <utime.h> lower since some
-	systems (UTS) require sys/types.h to be included first [Bug: 4031]
-
-	* unix/tclUnixChan.c (CreateSocketAddress): changed comparison with -1
-	to 0xFFFFFFFF, to ensure 32 bit comparison even on 64 bit systems.
-	[Bug: 3878]
-
-	* generic/tclFileName.c: improved guessing of path separator for the
-	Mac. (Darley)
-
-	* generic/tclInt.h:
-	* generic/tcl.decls: moved Tcl_ProcObjCmd to stubs table [Bug: 3827]
-	and removed 'register' from stub definition of
-	Tcl_AppendUnicodeToObj [Bug: 4038]
-
-2000-01-21  Eric Melski  <ericm@scriptics.com>
-
-	* unix/mkLinks:
-	* doc/GetHostName.3: Man page for Tcl_GetHostName (bug #1817).
-
-	* doc/lreplace.n: Corrected man page with respect to treatment of
-	empty lists, and "prettied up" the page. (bug #1705).
-
-2000-01-20  Eric Melski  <ericm@scriptics.com>
-
-	* tests/namespace.test: Added test for undefined variables with
-	namespace which (bug #956).
-
-	* generic/tclNamesp.c: Added check for undefined variables in
-	NamespaceWhichCmd (bug #956).
-
-	* tests/var.test: Added tests for corrected variable behavior (bug
-	#981).
-
-	* doc/upvar.n: Expanded explanation of upvar behavior with respect to
-	variable traces. (bugs 3917 1433 2110).
-
-	* generic/tclVar.c: Changed behavior of variable command when name
-	refers to an element in an array (ie, "variable foo(x)") to always
-	return an error, regardless of existance of that element in the array
-	(now behavior is consistant with docs too) (bug #981).
-
-2000-01-20  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* generic/tclCmdIL.c (InfoBodyCmd): made [info body] return a string
-	if the body has been bytecompiled.
-	* generic/tclBasic.c (Tcl_EvalObjEx): added pedantic check for
-	originating proc body of bytecompiled code, #def'd out as the change
-	for [info body] should make it unnecessary
-
-	* unix/tclUnixNotfy.c (Tcl_InitNotifier): added cast for tsdPtr
-
-	* tests/set.test: added test for complex array elem name compiling
-	* generic/tclCompCmds.c (TclCompileSetCmd): Fixed parsing of array
-	elements during compiling, and slightly optimised same [Bug: 3889]
-
-	* doc/tclvars.n: added definitions for tcl_(non)wordchars
-
-	* doc/vwait.n: added notes about requirement for vwait var being
-	globally scoped [Bug: 3329]
-
-	* library/word.tcl: changed tcl_(non)wordchars settings to use new
-	unicode regexp char class escapes instead of char sequences
-
-2000-01-14  Eric Melski  <ericm@scriptics.com>
-
-	* tests/var.test: Added a test for the array multiple delete
-	protection in Tcl_UnsetVar2.
-
-	* generic/tclVar.c: Added protection in Tcl_UnsetVar2 against attempts
-	to multiply delete arrays when unsetting them (bug #3453). This could
-	happen if there was an unset trace on an array element and the trace
-	proc made a global or upvar link to the array, and then the array was
-	unset at the global level. See the bug reference for more information.
-
-	* unix/tclUnixTime.c: New clock format format.
-
-	* compat/strftime.c: New clock format format.
-
-	* generic/tclGetDate.y: New clock scan format.
-
-2000-01-13  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* changes: updated changes file to reflect 8.3b2 mods
-
-	* README:
-	* generic/tcl.h:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.m4:
-	* win/README.binary:
-	* win/configure.in: updated to patchlevel 8.3b2
-
-	* generic/regexec.c: added var initialization to prevent compiler
-	warning
-
-2000-01-13  Eric Melski  <ericm@scriptics.com>
-
-	* tests/cmdIL.test: Added tests for lsort -dictionary with characters
-	that occur between Z and a in ASCII.
-
-	* generic/tclCmdIL.c: Modified DictionaryCompare function (used by
-	lsort -dictionary) to do upper/lower case equivalency before doing
-	character comparisons, instead of after. This fixes bug #1357, in
-	which lsort -dictionary [list ` AA c CC] and lsort -dictionary [list
-	AA c ` CC] gave different (and both wrong) results.
-
-2000-01-12  Eric Melski  <ericm@scriptics.com>
-
-	* tests/clock.test: Added tests for "next <day-of-week>" and
-	"<day-of-week>"
-	Added tests for "monday 1 week ago", etc, from RFE #3671.
-
-	* doc/tests/clock.test: Added numerous tests for clock scan.
-
-	* doc/generic/tclGetDate.y: Fixed some shift/reduce conflicts in clock
-	grammar.
-
-	* doc/doc/clock.n: Added documentation for new supported clock scan
-	formats and additional explanation of daylight savings time correction
-	algorithm.
-
-2000-01-12  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* doc/file.n:
-	* tests/unixFCmd.test:
-	* unix/tclUnixFCmd.c: added support for symbolic permissions setting
-	in SetPermissionsAttribute (file attr $file -perm ...) [Bug: 3970]
-
-	* generic/tclClock.c: fixed support for 64bit handling of clock values
-	[Bug: 1806]
-
-	* generic/tclThreadTest.c: upped a buffer size to hold double
-
-	* tests/info.test:
-	* generic/tclCmdIL.c: fixed 'info procs ::namesp::*' behavior (Dejong)
-
-	* generic/tclNamesp.c: made imported commands also import their
-	compile proc [Bug: 2100]
-
-	* tests/expr.test:
-	* unix/Makefile.in:
-	* unix/configure.in:
-	* unix/tcl.m4: recognize strtod bug on Tru64 v5.0 [Bug: 3378] and
-	added tests to prevent unnecessary chmod +x in sources while
-	installing, as well as more intelligent setsockopt/gethostbyname
-	checks [Bug: 3366, 3389]
-
-	* unix/tclUnixThrd.c: added compile time support (through use of the
-	TCL_THREAD_STACK_MIN define) for increasing the default stack size for
-	a thread. [Bug: 3797, 1966]
-
-2000-01-11  Eric Melski  <ericm@scriptics.com>
-
-	* generic/tclGetDate.y: Added comments for the Convert function. Added
-	a fix for daylight savings time handling for relative time spans of
-	days, weeks or fortnights. (bug 3441, 3868).
-
-	* generic/tclDate.c: Fixed compiler warning issues.
-
-2000-01-10  Jeff Hobbs  <hobbs@scriptics.com>
-
-	* compat/waitpid.c: use pid_t type instead of int [Bug: 3999]
-
-	* tests/utf.test: fixed test that allowed \8 as octal value
-	* generic/tclUtf.c: changed Tcl_UtfBackslash to not allow non-octal
-	digits (8,9) in \ooo substs. [Bug: 3975]
-
-	* generic/tcl.h: noted need to change win/tcl.m4 and
-	tools/tclSplash.bmp for minor version changes
-
-	* library/http2.1/http.tcl: trim value for $state(meta) key
-
-	* unix/tclUnixFile.c: fixed signature style on functions
-
-	* unix/Makefile.in: made sure tcl.m4 would be installed with dist
-
-	* unix/tcl.m4: added ELF support for NetBSD [Bug: 3959]
-
-2000-01-10  Eric Melski  <ericm@scriptics.com>
-
-	* generic/tclGetDate.y: Added rules for ISO 8601 formats (BUG #847):
-	CCYY-MM-DD
-	CCYYMMDD
-	YY-MM-DD
-	YYMMDD
-	CCYYMMDDTHHMMSS
-	CCYYMMDD HHMMSS
-	CCYYMMDDTHH:MM:SS
-	Fixed "clock scan <number>" to scan the number as an hour for the
-	current day, rather than a minute after 00:00 for the current day
-	(bug #2732).
-
-2000-01-07  Eric Melski  <ericm@scriptics.com>
-
-	* generic/tclClock.c: Changed switch in Tcl_ClockObjCmd to use
-	enumerated values instead of constants. (ie, COMMAND_SCAN instead of
-	3).
diff --git a/ChangeLog.2001 b/ChangeLog.2001
deleted file mode 100644
index 06e7c36..0000000
--- a/ChangeLog.2001
+++ /dev/null
@@ -1,3629 +0,0 @@
-2001-12-28  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* library/init.tcl: make sure env(COMSPEC) on Windows is executed with
-	the right case, as it may otherwise fail inexplicably.
-
-2001-12-28  Don Porter <dgp@users.sourceforge.net>
-
-	* generic/tclCkalloc.c (MemoryCmd, TclFinalizeMemorySubsystem): Added
-	the [memory onexit] command, intended to replace [checkmem].
-
-	* doc/DumpActiveMemory.3:
-	* doc/memory.n: Updated documentation for [memory] and related
-	matters. [Bug 487677]
-
-	* mac/tclMacBOAMain.c (Tcl_Main, CheckmemCmd): Removed all the
-	machinery for the [checkmem] command that is completely duplicated by
-	code in generic/tclCkalloc.c.
-
-	* generic/tclBinary.c:
-	* generic/tclListObj.c:
-	* generic/tclObj.c:
-	* generic/tclStringObj.c: Removed references to [checkmem] in
-	comments, referencing [memory active] instead, since it is
-	documented.
-
-2001-12-28  Daniel Steffen <das@users.sourceforge.net>
-
-	* mac/tclMacInit.c:
-	* mac/tclMacTclCode.r: synced up tclInit features to unix/win:
-	implemented TclSetPreInitScript support, use of existing tclInit proc
-	if defined, check of default encoding dir if set. Changed script
-	library resource names to lowercase (i.e. same as corresponding
-	files). Used Tcl_JoinPath instead of string append. Check that system
-	encoding could be loaded before utf translating the LibraryPath.
-	* mac/tclMacApplication.r:
-	* mac/tclMacLibrary.r:
-	* mac/tclMacOSA.r:
-	* mac/tclMacResource.r: minor version resources cleanup
-
-2001-12-21  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/tcl.m4 (SC_PATH_TCLCONFIG, SC_PATH_TKCONFIG):
-	Search for config file using exec_prefix instead of prefix when no
-	--with-tcl or --with-tk argument is used. [Bug 492418]
-
-2001-12-21  Daniel Steffen <das@users.sourceforge.net>
-
-	* unix/tcl.m4: fixed incorrect SHLIB_LD_LIBS setting for MacOSX /
-	Darwin.
-	* unix/configure: Regen.
-	* unix/mkLinks.tcl: improved case-insensitive filesystem support.
-	* unix/mkLinks: Regen.
-
-2001-12-19  Don Porter <dgp@users.sourceforge.net>
-
-	* unix/Makefile.in (dist): corrected use of eolFix.tcl on working
-	files. It should operate on distributed files. [Bug 495120]
-
-2001-12-19  David Gravereaux <davygrvy@pobox.com>
-
-	* tools/tcl.wse.in: Fix for [Bug 495120]. tcl.wse.in was stored in cvs
-	with improper <eol>. This resulted in corrupted <eol> when checked-out
-	on translating CVS clients such as windows (CRCRLF) and mac (CRCR).
-
-2001-12-19  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure:
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): Update SunOS 5.[0-6] target so that
-	correct linker options are passed to gcc or ld. [Tk Bug 220863]
-
-2001-12-19  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/README: Update to account for changes in the unix/dltest
-	directory, the way autoconf is run, and the new "make shell" target.
-
-2001-12-19  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/Makefile.in: Rename dltest to dlpkgs to fix problem where lib
-	files were not getting built because dltest/ directory already
-	existed.
-
-2001-12-19  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/tclWinSerial.c (SerialCheckProc): corrected time calculations to
-	be unsigned. (schroedter)
-
-2001-12-18  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/Makefile.in: Define new dltest target that simply does a cd to
-	dltest/ before running make. There is no need for the separate
-	configure script that was previously being used.
-	* unix/configure: Regen.
-	* unix/configure.in: Subst into dltest/Makefile.
-	* unix/dltest/Makefile.in: Define LIBS using DL_LIBS, LIBS, and
-	MATH_LIBS variables instead of TCL_LIBS variable from tclConfig.sh.
-	* unix/dltest/README: Update readme to account for new configure free
-	implementation.
-	* unix/dltest/configure: Removed.
-	* unix/dltest/configure.in: Removed.
-
-2001-12-18  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tcl.h (TCL_STUB_MAGIC): Added cast to force type to be an
-	int and get rid of a persistent and pointless warning with SunPro
-	compiler.
-
-	* generic/tclCkalloc.c (Tcl_AttemptDbCkalloc,Tcl_AttemptDbCkrealloc):
-	* generic/tcl.decls (Tcl_AttemptDbCkalloc,Tcl_AttemptDbCkrealloc):
-	Made the file parameters to these functions into CONST char *, like
-	they always should have been to match the other Tcl*Db* API functions.
-
-2001-12-17  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* Applied [Bug 219311] on behalf of Rolf Schroedter
-	<schroedter@users.sourceforge.net> to prevent fcopy on serial ports
-	from flooding the event queue.
-
-2001-12-11  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* doc/CrtInterp.3:
-	* generic/tclBasic.c: docs and comments corrections. [Bug 493412]
-	Bug & patch by Don Porter.
-
-2001-12-14  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* win/tclWinNotify.c (Tcl_FinalizeNotifier): Stop Tcl on Windows from
-	crashing when shutdown from a non-Tcl thread. Fixes [Bug 217982]
-	[orig. 5804] reported by Hugh Vu and Gene Leache. I'm not convinced
-	that the shutdown process is right even with this, but it was
-	definitely wrong without...
-
-2001-12-13  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* win/tclWinSock.c (TcpGetOptionProc): Fix for [Bug 478565] reported
-	by an unknown person. Bypasses all calls to "gethostbyaddr" for
-	address "0.0.0.0" to prevent delays on Win/NT.
-
-2001-12-12  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* doc/Preserve.3: doc'd TCL_DYNAMIC use. [Patch 483989] (porter)
-
-2001-12-12  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* generic/tclIO.c (Tcl_GetsObj): Applied patch for [Bug 491341] as
-	provided by Don Porter <dgp@users.sourceforge.net>. Fixes the
-	assumption of having an empty Tcl_Obj to work with.
-
-2001-12-11  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCompCmds.c:
-	* generic/tclCompile.c:
-	* generic/tclExecute.c: consistency patch, to make all instructions
-	that pop a variable number of Tcl_Obj's off the execution stack take
-	the number of popped objects as first operand. Modified *only* the new
-	instructions INST_LIST_INDEX_MULTI and INST_LSET_FLAT, so this has no
-	effect on bytecodes generated up to tcl8.4a3 inclusive.
-
-	* generic/tclExecute.c: fix debug messages in INST_LSET_LIST.
-
-	* generic/tclCompCmds.c (TclCompileLindexCmd):
-	* generic/tclCompExpr.c (CompileMathFuncCall): removed the last two
-	overestimates of the necessary stack depth for bytecodes in the fix of
-	[Bug 483611]
-
-2001-12-10  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* unix/tclUnixPipe.c (TclpCreateProcess): Applied Don Porter's patch
-	fixing [Bug 437489].
-
-2001-12-10  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclEvent.c:
-	* tests/event.test: fix background error reporting in the absence of a
-	bgerror proc [Bug 219142].
-
-2001-12-10  Don Porter <dgp@users.sourceforge.net>
-
-	* doc/Access.3:
-	* doc/CrtChannel.3:
-	* doc/DString.3:
-	* doc/ExprLong.3:
-	* doc/FileSystem.3:
-	* doc/GetStdChan.3:
-	* doc/OpenFileChnl.3:
-	* doc/StdChannels.3:
-	* doc/TCL_MEM_DEBUG.3:
-	* doc/Tcl_Main.3:
-	* doc/Utf.3:
-	* doc/file.n:
-	* doc/tclsh.1:  Several typo and formatting corrections discovered
-	during conversion to TMML. Thanks to Joe English. [Patch 490514]
-	* unix/mkLinks: 'make mklinks'
-
-2001-12-10  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCompCmds.c:
-	* generic/tclCompExpr.c:
-	* generic/tclCompile.c:
-	* generic/tclCompile.h:
-	* generic/tclExecute.c:
-	* generic/tclProc.c: fixed the calculation of the maximal stack depth
-	required by bytecodes. [Bug 483611]
-
-2001-12-07  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclVar.c:
-	* tests/trace.test: restored consistency in refCount accounting by
-	array traces [Bug 4484339], submitted by Don Porter.
-
-2001-12-06  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/parseExpr.test, tests/for.test, tests/expr.test:
-	* tests/expr-old.test, tests/compile.test, tests/compExpr.test
-	* tests/compExpr-old.test: Kept up to date with syntax errors.
-	* generic/tclParseExpr.c (ParsePrimaryExpr): Rewrote to give even
-	better syntax errors in the fairly common case of an identifier
-	without decorations by guessing based on the currently available
-	functions. Also made messages consistent between memdebug and ordinary
-	builds.
-
-2001-12-05  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclVar.c:
-	* tests/trace.test: new algorithm for [array get], safe when there are
-	traces that modify the array. [Bug 449893]
-
-2001-12-04  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/compExpr-old.test, tests/compExpr.test, tests/compile.test:
-	* tests/expr-old.test, tests/expr.test, tests/for.test:
-	* tests/while.test, tests/if.test: Rewrite to handle more specific
-	syntax errors.
-	* tests/parseExpr.test: Rewrite to get rid of dup test numbers and
-	handle more specific syntax errors.
-	* generic/tclParseExpr.c (LogSyntaxError): Added a detail message
-	argument to help explain what the syntax error is.
-	(Tcl_ParseExpr, ParseCondExpr, ParsePrimaryExpr): Added detail
-	messages.
-	(UNKNOWN_CHAR): New lexeme for characters that are always illegal in
-	expressions outside strings.
-
-2001-12-03  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/expr.n: Various documentation improvements in relation to the
-	function calls. Includes fix for [Bug 487704] submitted by Devin Eyre.
-
-2001-12-03  David Gravereaux <davygrvy@pobox.com>
-
-	* win/makefile.vc: Some install target bugs repaired along with
-	$(TCLSTUBLIB) added to the dependencies rather than implicit through
-	the dde and reg extensions which don't happen to always require it for
-	some build types.
-
-2001-11-30  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclVar.c: Tcl_Preserve'ing VarTrace structures to avoid
-	memory corruption. Patch for [Bug 484334] provided by Don Porter
-
-2001-11-29  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* tests/namespace.test: modified namespace-41.2, added 41.3
-	{knownbug} after discussion with Don Porter and Kevin Kenny.
-
-2001-11-29  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* tests/namespace.test: added namespace-41.2, a simpler test for
-	[Bug 231259]
-
-2001-11-29  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclBinary.c (BINARY_SCAN_MAX_CACHE, Tcl_BinaryObjCmd,
-	(ScanNumber): Added caching scheme to reduce number of object
-	allocations when doing scans of large repetitive binary strings. See
-	comments in file for reasoning behind implementation. Suggested by
-	Miguel Sofer in [Patch 429916], but independently implemented.
-
-2001-11-28  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/regsub.n, doc/regexp.n: Converted dangling references to
-	METASYNTAX section into references to the re_syntax manual page.
-
-2001-11-27  D. Richard Hipp   <drh@hwaci.com>
-
-	* win/tclWinFCmd.c: Fix a coredump in the filename normalizer code for
-	Win95/98.
-
-2001-11-27  David Gravereaux <davygrvy@pobox.com>
-
-	* win/makefile.vc: Removed the Tk reference for the 'winhelp' target.
-	Converge at install will need to be the solution for Tk and all other
-	extensions.
-
-2001-11-27  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/cmdAH.test (cmdAH-24.2): Made test less sensitive to OS
-	preemption, but perfection isn't practical. [Bug 463189, reported by
-	Don Porter]
-
-	* tests/switch.test (switch-9.*): Added tests to exercise more of the
-	argument checking.  (switch-7.2,switch-7.3): Test changed behaviour
-	slightly.
-	* generic/tclCmdMZ.c (Tcl_SwitchObjCmd): Reworked argument parsing to
-	be stricter about what it accepts. This should make uses of the
-	[switch] command be more maintainable. [Bug 475397, reported by Don
-	Porter]
-
-2001-11-26  Don Porter <dgp@users.sourceforge.net>
-
-	* generic/tclIntPlatDecls.h: 'make genstubs' after changes in
-	2001-11-23 commit from Daniel Steffen.
-
-2001-11-24  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/Makefile.in: Add comments to better describe TCL_EXE and when
-	it should be available.
-	* win/Makefile.in: Add TCL_EXE variable to be used by rules like `make
-	genstubs`. Don't set TCL_LIBRARY before running `make genstubs` since
-	we will be running with a tclsh from the PATH not the one we build.
-
-2001-11-24  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/configure: Regen.
-	* win/tcl.m4 (SC_CONFIG_CFLAGS): Add comctl32.lib to wish link libs.
-	This change was originally added to Tk on 2001-11-09 but was not
-	committed to Tcl.
-
-2001-11-23  Daniel Steffen <das@users.sourceforge.net>
-
-	* unix/Makefile.in:
-	* unix/configure.in:
-	* unix/install-sh:
-	* unix/mkLinks:
-	* unix/mkLinks.tcl:
-	* unix/tclLoadDyld.c:
-	* unix/tclMtherr.c: Mac OSX support: build system, dynamic code loading
-	and support for case-insensitive filesystems in mkLinks. [Patch 435258]
-
-2001-11-23  Daniel Steffen <das@users.sourceforge.net>
-
-	Up-port to 8.4 of mac code changes for 8.3.3 & various new changes for
-	8.4, some already backported to 8.3.4. [Patch 435658]
-
-	* generic/tclObj.c: added #include to fix missing prototype errors
-
-	* generic/tcl.h: MAC_TCL: addition of ConditionalMacros.h and use of
-	DLLIMPORT and DLLEXPORT like on other platforms. ( => no longer need
-	the .exp files and can remove use of #pragma export that never worked
-	well)
-	removed line continuation in #if clause as this breaks the mac
-	resource compiler (note that *.r files include tcl.h)
-
-	* mac/tclMacFile.c: fixed bug in permission checking code
-
-	* mac/tclMacLoad.c: corrected utf8 handling, comparison of package
-	names to code fragment names changed to only match on the length of
-	package name, this allows for fragment names with version numbers
-	appended.
-
-	* mac/tclMacInt.h:
-	* generic/tclInt.h:
-	* mac/tclMacTime.c:
-	* generic/tclIOUtil.c: moved declaration of TclpGetGMTOffset()
-
-	* mac/tclMacShLib.exp:
-	* mac/tclMacOSA.exp:
-	* mac/tclMacMSLPrefix.h: removed files
-
-	* unix/Makefile.in: removed reference to .exp files
-
-	* mac/MW_TclBuildLibHeader.h:
-	* mac/MW_TclBuildLibHeader.pch:
-	* mac/MW_TclHeaderCommon.h:
-	* mac/MW_TclStaticHeader.h:
-	* mac/MW_TclStaticHeader.pch: new precompiled header files
-
-	* mac/MW_TclAppleScriptHeader.pch:
-	* mac/MW_TclHeader.pch:
-	* mac/MW_TclTestHeader.pch:
-	* mac/tclMacCommonPch.h: revised precompiled header handling: now
-	include a common header file 'MW_TclHeaderCommon.h' from all .pch
-	files, the .pch files themselves now only setup #defines (e.g.
-	BUILD_tcl, STATIC_BUILD, TCL_DEBUG, TCL_THREADS) like in makefiles on
-	other platforms.
-
-	* mac/tclMac.h:
-	* mac/tclMacPort.h:
-	* mac/tclMacInt.h: use of BUILD_tcl and TCL_STORAGE_CLASS like on other
-	platforms, standardize #include'd files to what's done on other
-	platforms, removed use of #pragma export.
-
-	* mac/tcltkMacBuildSupport.sea.hqx: new archive of mac build support
-	files & suggested build environment directory hierarchy:
-	'Building MacTclTk' & 'CW Pro6 changes' readme's.
-	projects for MoreFiles 1.5.2 static & shared libraries.
-	project & sources for 'pseudoCarbonSupport', see below.
-	included XML versions of the projects for CW Pro5 or Pro7 users.
-
-	* mac/tclMacProjects.sea.hqx: updated mac build project files:
-	build support for CodeWarrior Pro6, UnivIntf 3.4 & shared runtime
-	libraries: the MSL libraries and MoreFiles are no longer compiled into
-	Tcl.shlb, all non-static binaries now use the Pro6 shared runtime
-	libraries and MoreFiles.shlb.  These shlbs are merged into the standard
-	Wish and TclShell, but 3rd party applications linking with Tcl.shlb or
-	Tk.shlb need to setup access to them.  (see the "(sh-ppc)" targets
-	for how to do this.)
-	included XML versions of the projects for CW Pro5 or Pro7 users.
-	use compat/strtod.c instead of MSL's strtod()
-	use WASTE versions of MSL for tcl test target to avoid text buffer
-	cutoff at 32k.
-	Merging the full MSL.shlb and the other shlbs into Wish & TclShell
-	makes them a bit larger than before, use unmerged binaries to avoid
-	copying the shared code with every application, e.g. when deploying
-	numerous Wish based droplets.
-	Note that using CW Pro5 to compile extensions is in principle still
-	possible, but need to link with Pro6 runtime libraries.
-	Tclapplescript now loads and runs on CFM68k.
-	Highly experimental "pseudoCarbon" support for Tcl only on OS 8/9:
-	binaries in "Build:(Carbon):" link against CarbonLib instead of
-	InterfaceLib, however the actual code has not been carbonized! i.e. it
-	will not run on OSX and may not even run properly with CarbonLib.
-	This should in principle allow you to build & test OS9 CFM Carbon
-	binaries that need to link with Tcl.shlb. On OSX you can use the
-	native Tcl.framework, but you have to build a MachO binary as there
-	is no CFM glue lib for Tcl.framework.
-	the library pseudoCarbonSupport.shlb manually loads the symbols from
-	InterfaceLib that are not in CarbonLib but are needed by the
-	uncarbonized code in Tcl.shlb and TclShell.
-
-	* generic/tclMain.c: MAC_TCL: workaround for broken/non-standard isatty
-	on MW Pro6, #include <unistd.h> instead of defining isatty
-
-	* mac/tclMacPort.h: MW Pro6 changes for MSL fcntl.h, stat.h & isatty
-
-	* mac/tclMacAppInit.c: add EXTERN to InstallConsole to enable DLL
-	export via the TCL_STORAGE_CLASS mechanism.
-
-	* mac/tclMacFCmd.c: fix for FSpDirectoryCopy API change
-
-	* mac/tclMacLibrary.c: emit compile time error when
-	TCL_REGISTER_LIBRARY and USE_TCL_STUBS are both defined at the same
-	time in an extension, this use is not currently supported and will
-	result in a crash when dynamically loading the extension.
-
-	* mac/tclMacApplication.r:
-	* mac/tclMacLibrary.r:
-	* mac/tclMacOSA.r:
-	* mac/tclMacResource.r: fixed obsolete copyrights/dates in version
-	strings; updated version strings to standard usage; added support for
-	'(Support Libraries)' subfolder for shared runtime libraries in
-	unmerged binaries; commented out demo setting of "Tcl Environment
-	Variables"; reorganized resources among these files to avoid multiple
-	copies in applications and shared libraries, the script libraries are
-	now no longer duplicated in Tclsh but are only included in the
-	resources of Tcl.shlb.
-
-	* mac/tclMacChan.c:
-	* mac/tclMacSock.c: cast for *BlockMode
-
-	* mac/tclMacUtil.c:
-	* mac/tclMacMath.h: removed obsolete hypot() definition
-
-	* generic/tclIntPlatDecls.h:
-	* generic/tclInt.decls:
-	* generic/tclStubInit.c:
-	* mac/tclMacNotify.c:
-	* mac/tclMacOSA.c:
-	* mac/tclMacUtil.c:
-	* generic/tclThreadTest.c: renamed routines conflicting with standard
-	Apple or MoreFiles headers (at compile or link time):
-	GetGlobalMouse         -> GetGlobalMouseTcl
-	FSpGetDirectoryID      -> FSpGetDirectoryIDTcl
-	FSpOpenResFileCompat   -> FSpOpenResFileCompatTcl
-	FSpCreateResFileCompat -> FSpCreateResFileCompatTcl
-	NewThread              -> NewTestThread
-	the renamed MoreFiles *Tcl routines are just wrappers calling into the
-	MoreFiles DLL.
-
-	* mac/tclMacCommonPch.h:
-	* mac/tclMacThrd.c:
-	* mac/tclMacPanic.c: removed OLDROUTINENAMES define, renamed obsolete
-	apple API names to modern equivalents; UH3.4 support: added #include
-	<ControlDefinitions.h>, updated New*Proc() calls to New*UPP().
-
-	* mac/tclMacUnix.c: added missing (Tcl_Obj ***) cast to
-	Tcl_ListObjGetElements call
-
-	* mac/tclMacAlloc.c: modernized TclpSysAlloc() to use temporary memory
-	instead of system heap memory when available (MacOS >= 7.5 and
-	possibly earlier, use of system heap has been discouraged for a long
-	time and has many disadvantages, e.g. memory isn't paged out, and
-	errors can very easily bring the system down); fixed crashing bug in
-	TclpSysRealloc() and CleanUpExitProc() where memory was being accessed
-	after having been deallocated; fixed memory leak in (de)allocation
-	code (for every block ever allocated with TclpSysAlloc, a Ptr was
-	leaked), if temporary memory is available, don't track allocated
-	memory, instead use RecoverHandle() to get Handle from Ptr, otherwise
-	use doubly linked list to correctly track memory and free all
-	allocated memory; added new option for ConfigureMemory:
-	MEMORY_DONT_USE_TEMPMEM, disables use of temporary memory even when it
-	would be available, only necessary when writing e.g. a driver (using
-	tcl??); increased fraction of application heap reserved for OS
-	routines to 512K
-
-	* compat/strftime.c:
-	* mac/tclMacTime.c:
-	* mac/tclMacPort.h:
-	* generic/tclInt.decls:
-	* generic/tclIntPlatDecls.h:
-	* generic/tclStubInit.c: timezone support for mac via TclpGetTZName()
-	like on windows, using an inverse timezone table adapted from
-	tclDate.c to map gmtoffset in seconds gotten from the MacOS APIs to a
-	timezone string, as there is no good way to get this info from MacOS.
-	I had to make up some unusual timezones and arbitrarily decide on the
-	most standard of the multiple choices available for every timezone.
-
-	* generic/tclExecute.c: workaround for a MSL bug/misfeature: for very
-	small floats, MSL can return errno ERANGE but a non-zero value (<
-	LDBL_MIN however)
-
-	* mac/tclMacAppInit.c: support for WASTE text library using temporary
-	memory, setting has no effect if WASTE is not used.
-
-	* mac/tclMacPanic.c: removed duplicate code from generic/tclPanic.c
-	and added that file to projects instead.
-
-	* tests/all.tcl: set tcltest::singleProcess 1 as multiple processes
-	are not available on the mac.
-
-	* tests/cmdAH.test: access time not available on the mac, skip the
-	atime touch test
-
-	* tests/appendComp.test:
-	* tests/cmdMZ.test:
-	* tests/compile.test:
-	* tests/exec.test:
-	* tests/fileName.test:
-	* tests/lset.test:
-	* tests/namespace.test:
-	* tests/tcltest.test: added missing cleanups/tests/catches that caused
-	tests to fail on the mac.
-
-	* doc/tclvars.n: doc bug, env(PWD) should be env(HOME) [Bug 463834]
-
-2001-11-21  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/trace.test (trace-8.8): Corrected test for Bug 219393.
-
-	* generic/tclBasic.c (Tcl_DeleteCommandFromToken,CallCommandTraces):
-	* generic/tclCmdMZ>c (Tcl_UntraceCommand):  Added Tcl_Preserve and
-	Tcl_Release calls to prevent deletion of CommandTrace structures until
-	all callers are done using them, preventing memory corruption. [Bug
-	453805]
-
-2001-11-20  Kevin B. Kenny  <kennykb@users.sourceforge.net>
-
-	* doc/GetTime.3 (Tcl_GetTime):
-	* generic/tcl.decls (Tcl_GetTime):
-	* generic/tclClock.c (Tcl_ClockObjCmd):
-	* generic/tclCompile.c (TclCleanupByteCode, TclInitByteCodeObj):
-	* generic/tclCmdMZ.c (Tcl_TimeObjCmd):
-	* generic/tclUtil.c (TclpGetTime):
-	* generic/tclTest.c (GetTimesCmd):
-	* generic/tclTimer.c (Tcl_CreateTimerHandler, TimerSetupProc,
-	(TimerCheckProc, TimerHandlerEventProc):
-	* mac/tclMacNotify.c (Tcl_SetTimer):
-	* mac/tclMacShLib.exp (Tcl_GetTime):
-	* mac/tclMacTime.c (Tcl_GetTime):
-	* unix/tclUnixChan.c (TclUnixWaitForFile):
-	* unix/tclUnixEvent.c (Tcl_Sleep):
-	* unix/tclUnixThrd.c (Tcl_ConditionWait):
-	* unix/tclUnixTime.c (Tcl_GetTime):
-	* win/tclWinNotify.c (Tcl_Sleep):
-	* win/tclWinTest.c (TestwinclockCmd):
-	* win/tclWinTime.c (TclpGetSeconds, TclpGetClicks, Tcl_GetTime):
-	Changed all uses of TclpGetTime to Tcl_GetTime. Added Tcl_GetTime to
-	the Stubs table and the library documentation. Added a TclpGetTime in
-	tclUtil.c for backward compatibility of extensions. [Patch 483500,
-	TIP#73]
-
-	* generic/tclCmdMZ.c (Tcl_TimeObjCmd): Corrected an error in the
-	[time] command that caused incorrect results to be returned if the
-	total duration of all iterations exceeded 2**31 microseconds. [Bug
-	478847]
-
-	* generic/tclInt.decls:
-	* generic/tclInt.h:
-	* generic/tclStubInit.h: Reran 'make genstubs'
-
-2001-11-20  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclBasic.c
-	* generic/tclCompile.h:
-	* generic/tclExecute.c: moving all code relative to bytecodes from
-	tclBasic.c to tclExecute.c - the functions RecordTracebackInfo and
-	Tcl_ExprObj went to tclExecute.c, and new interface function was
-	defined (TclCompEvalObj).
-	The final objective of this sequence of moves is to provide a clean,
-	clear-cut interface between Tcl's core and the compiler/engine
-	subsystem.
-
-2001-11-20  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclBasic.c
-	* generic/tclCompile.h:
-	* generic/tclExecute.c: factoring out of common code in tclBasic.c
-	(new function TclInterpReady defined: it resets the interp's result,
-	then checks that it hasn't been deleted and that the nesting level is
-	acceptable). Passed the responsibility of calling it to the *callers*
-	of TclEvalObjvInternal.
-
-2001-11-20  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclBasic.c
-	* generic/tclExecute.c: a better variant of the previous-to-last
-	commit (restoring numLevels computations). The managing of the levels
-	now has to be done by the *callers* of TclEvalObjvInternal
-
-2001-11-20  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c: missing variable declaration under
-	TCL_COMPILE_DEBUG.
-
-2001-11-20  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c:
-	* generic/tclProc.c: restoring the computations of iPtr->numLevels to
-	the original logic (previous to buggy modifs on 2001-11-16).
-
-2001-11-20  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tools/eolFix.tcl (new-file):
-	* unix/Makefile.in: added EOL correction for Windows bat files to
-	dist target. [Bug 219409] (davygrvy)
-
-	* unix/tclUnixInit.c (TclpSetInitialEncodings): update of patch from
-	2001-11-16 that uses the old Tcl encoding check mechanism as a
-	fallback to the original. Also added a TCL_DEFAULT_ENCODING #define
-	(defaults to iso8859-1). Tcl will first try setlocale and nl_langinfo,
-	and if that fails, guess based on certain LANG|LC_* env vars. [Patch
-	418645]
-
-2001-11-19  David Gravereaux <davygrvy@pobox.com>
-
-	* win/buildall.vc.bat:  Added useful comments.
-
-2001-11-19  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* tests/compile.test: added a test for bug [Bug 483309]
-
-2001-11-19  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* win/tclWinFile.c:
-	* win/tclWinFCmd.c:
-	* win/tclWin32Dll.c:
-	* doc/file.n:
-	* tests/winFCmd.test: improved speed of file normalization for
-	Win95/98, and clarified docs on differences in file normalization
-	between NT/2000 and the older operating systems. Added test to ensure
-	normalization is correct.
-
-2001-11-19  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclBasic.c:
-	* generic/tclParse.c: Code reorganisation. Moved all evaluation
-	functions from tclParse.c to tclBasic.c, so that now tclParse.c deals
-	exclusively with parsing and all evaluations are done by code in
-	tclBasic.c. The functions moved are: TclEvalObjvInternal,
-	Tcl_EvalObjv, Tcl_LogCommandInfo, Tcl_EvalTokensStandard,
-	Tcl_EvalTokens, Tcl_EvalEx, Tcl_Eval, Tcl_EvalObj and
-	Tcl_GlobalEvalObj.
-
-2001-11-19  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/trace.test (trace-8.8): Added adapted version of [Bug 219393]
-	as new test; the test won't reliably show up the old problem unless it
-	is being run under something like Purify, but something is better than
-	nothing...
-
-	* generic/tclVar.c (Tcl_TraceVar2, Tcl_UntraceVar2): Added missing
-	mask bits for trace result type and a check for a nonsense flag
-	combination.
-	* generic/tclCmdMZ.c (TraceVarProc): Added missing test for NULL when
-	deleting a trace that doesn't cause an error.
-
-	* doc/TraceVar.3: Added documentation for change due to TIP#68.
-
-	* generic/tclCmdMZ.c (TraceVarInfo): Removed problematic errMsg field
-	from structure.
-	(TraceVarProc): Removed references to errMsg field and changed
-	handling of errors so that they returned a Tcl_Obj* containing the
-	error string. This minimizes the number of calls to the memory
-	management subsystem.
-	(TclTraceCommandObjCmd, TraceCommandProc): Removed references to
-	errMsg field which was never used in command traces in any case.
-	(Tcl_TraceObjCmd, TclTraceVariableObjCmd): Removed references to
-	errMsg field and made variable traces register with
-	TCL_TRACE_RESULT_OBJECT bit set.
-
-	* generic/tcl.h (TCL_TRACE_RESULT_DYNAMIC,TCL_TRACE_RESULT_OBJECT):
-	New constants to define how to handle the strings returned from trace
-	callbacks [TIP#68]
-	* generic/tclVar.c (CallTraces, Tcl_GetVar2Ex, TclGetIndexedScalar,
-	(TclGetElementOfIndexedArray, Tcl_SetVar2Ex, TclSetIndexedScalar,
-	(TclSetElementOfIndexedArray, Tcl_UnsetVar2, Tcl_ArrayObjCmd,
-	(TclDeleteVars, TclDeleteCompiledLocalVars, DeleteArray,
-	(TclVarTraceExists): Support for those new trace flags.
-
-2001-11-19  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCompCmds.c: patch for [Bug 483309] (petasis).
-
-2001-11-16  Kevin B. Kenny  <kennykb@users.sourceforge.net>
-
-	* generic/tclListObj.c: removed a C++-style comment that was
-	inadvertently left in the source code.
-
-2001-11-16  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tests/interp.test:
-	* generic/tclInterp.c (SlaveObjCmd): Corrected argument checking for
-	'$interp alias|aliases|issafe'. [Patch 479560] (thoyts, hobbs)
-
-	* unix/tclUnixInit.c: added HAVE_LANGINFO code block.
-	* unix/configure: regened
-	* unix/configure.in: added SC_ENABLE_LANGINFO call
-	* unix/tcl.m4: made SHLIB_LD_LIBS='${LIBS}' for FreeBSD* (meyer)
-	Added modified version of Wagner patch to make use of nl_langinfo
-	where possible to determine Unix platform encoding, instead of the
-	inflexible built-in system. This is used by default when possible, and
-	can be disabled with --enable-langinfo=no. [Patch 418645] (hobbs,
-	wagner)
-
-2001-11-16  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCompile.h:
-	* generic/tclExecute.c:
-	* generic/tclObj.c: moved Tcl_GetCommandFromObj and all defining code
-	for tclCmdNameType objects to tclObj.c (from tclExecute.c). This code
-	has nothing to do with bytecodes.
-
-2001-11-16  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclBasic.c:
-	* generic/tclCompile.h:
-	* generic/tclExecute.c:
-	* generic/tclParse.c:
-	* generic/tclProc.c:
-	* tests/stack.test: consolidation of duplicated code (in
-	TclExecuteByteCode and EvalObjv); renaming of EvalObjv to TclEvalObjv
-	as it is not static anymore; restored consistency of level counts
-	between compiled and directly evaled code. [Bug 480896]
-
-2001-11-12  David Gravereaux <davygrvy@pobox.com>
-
-	* win/makefile.vc:
-	* win/rules.vc:  Small bug fixes.
-
-	* win/README: added some docs pointing to the docs in makefile.vc for
-	it's use.
-
-2001-10-17  Kevin B. Kenny  <kennykb@users.sourceforge.net>
-
-	* doc/lappend.n:
-	* doc/lindex.n:
-	* doc/linsert.n:
-	* doc/list.n:
-	* doc/llength.n:
-	* doc/lrange.n:
-	* doc/lsearch.n:
-	* doc/lset.n (new-file):
-	* doc/lsort.n:
-	* generic/tclBasic.c (builtInCmds, Tcl_EvalObjEx):
-	* generic/tclCmdIL.c (Tcl_LindexObjCmd, Tcl_LindexList):
-	(Tcl_LindexFlat, Tcl_LsetObjCmd):
-	* generic/tclCompCmds.c (Tcl_CompileLindexCmd, Tcl_CompileLsetCmd):
-	* generic/tclCompile.c:
-	* generic/tclCompile.h:
-	* generic/tclExecute.c (TclExecuteByteCode):
-	* generic/tclInt.decls:
-	* generic/tclInt.h:
-	* generic/tclIntDecls.h:
-	* generic/tclListObj.c (TclLsetList, TclLsetFlat, TclSetListElement):
-	* generic/tclObj.c (TclInitObjSubsystem):
-	* generic/tclStubInit.c:
-	* generic/tclTestObj.c (TestobjCmd):
-	* generic/tclUtil.c (TclGetIntForIndex, SetEndOffsetFromAny):
-	* generic/tclVar.c (Tcl_LappendObjCmd):
-	* tests/lindex.test:
-	* tests/lset.test (new-file):
-	* tests/lsetComp.test (new-file):
-	* tests/obj.test:
-	* tests/string.test:
-	* tests/stringComp.test:
-	Reference implementation of TIP's #22, #33 and #45. Adds the ability
-	of the [lindex] command to have multiple index arguments, and adds the
-	[lset] command. Both commands are byte-code compiled. [Patch 471874]
-	(work by Kenny, commited by Hobbs)
-
-2001-11-12  David Gravereaux <davygrvy@pobox.com>
-
-	* win/buildall.vc.bat(new):
-	* win/makefile.vc:  Small fix with deriving the "OriginalFilename"
-	string in the .rc scripts. Added a quick batchfile for building the
-	entire thing.
-
-2001-11-12  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* doc/FileSystem.3:
-	* doc/file.n:
-	* doc/tcltest.n: converted use of \' to more reasonable format.
-
-2001-11-10  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/Makefile.in:
-	* win/Makefile.in: Add "make gdb" target. This target can run tclsh
-	inside either gdb or insight.
-
-2001-11-10  David Gravereaux <davygrvy@pobox.com>
-
-	* win/makefile.vc:  Added a check to make sure one runs the makefile
-	from the /win directory only.
-
-	* win/mkd.bat:
-	* win/rmd.bat:  Changes from Llyod Lim for better stability.
-	[Patch 456759]
-
-2001-11-09  David Gravereaux <davygrvy@pobox.com>
-
-	* win/makefile.vc:
-	* win/tcl.dsp:  winhelp target fixes for non-NT systems. It seems
-	NMAKE under these remembers changed directories during commands. A new
-	tcltest feature from Peter Spjuth <peter.spjuth@space.se> to specify a
-	pattern file from the commandline and redirecting output to a file
-	when not under NT with it's scrollback console. Then it replays it,
-	piped through more. Added 2 new static "configurations" to tcl.dsp.
-	I could keep adding more, but I think we should leave it up to the
-	user for customizing it.
-
-	Sticky-points left:  'profile' option.
-
-2001-11-09  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* doc/FileSystem.3:
-	* doc/StdChannels.3:
-	* doc/file.n:
-	* doc/tcltest.n:
-	* tools/man2help.tcl:
-	* tools/man2help2.tcl: fixed winhelp generation problems
-	[Patch 480268]
-
-	* unix/configure:
-	* unix/tcl.m4: added -lc to AIX libs, fixed path to ldAix
-
-2001-11-09  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/var.test:
-	* generic/tclVar.c: Corrected bug in [global] when dealing with
-	variable names matching :*. [Bug 480176]
-
-2001-11-08  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	Fixup stack size under OSF1. [Patch 474790]
-
-	* unix/configure: Regen.
-	* unix/tcl.m4: Add HAVE_PTHREAD_ATTR_SETSTACKSIZE define to
-	EXTRA_CFLAGS to adjust initial stack size.
-
-2001-11-08  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	Enable thread support under FreeBSD. [Bug 473708]
-
-	* unix/configure: Regen.
-	* unix/tcl.m4 (SC_ENABLE_THREADS): Check for pthread functions in
-	libc_r and enable thread support if found.
-	* unix/dltest/Makefile.in: Set SHLIB_LD_LIBS and use it in the
-	Makefile to properly link a shared library.
-
-2001-11-08  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/Makefile.in:
-	* unix/dltest/Makefile.in: Avoid adding libc to the LIBS variable
-	since it is not needed when linking with CC. If required when linking
-	with LD it should be done on a case by case basis in tcl.m4.
-
-2001-11-08  David Gravereaux <davygrvy@pobox.com>
-
-	* win/rules.vc:
-	* win/makefile.vc:  Fixed install target to adjust for the different
-	build types. Added a 'linkexten' option to link the win extensions
-	inside the shell when built static. Placed win/tclAppInit.c patch in
-	SF patch DB for approval. 'profile' option not hooked in yet.
-	Everything else know is done.
-
-	* win/tcl.dsp(new):
-	* win/tcl.dsw(new):  Simple MsDev stub project files that calls
-	makefile.vc. Will help run Tcl in the debugger easier without
-	confusing MsDev for where the .pdb files are.
-
-2001-11-07  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/Makefile.in:
-	* win/Makefile.in: Print a message indicating that the user should run
-	"make genstubs" when the generated tclStubInit.c file is out of date.
-	We can't regenerate automatically since there may be no tclsh on the
-	system and that would cause bootstrap problems. [Bug 465874]
-
-2001-11-07  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	Define TCL_INCLUDE_SPEC in tclConfig.sh. It should be included by
-	extensions that need to find Tcl include headers in the install
-	location. The user can override the include install dir with
-	--includedir so we need to record this information for extensions.
-	[Bug 421835]
-
-	* unix/configure: Regen.
-	* unix/configure.in: Define TCL_INCLUDE_SPEC.
-	* unix/tclConfig.sh.in: Define TCL_INCLUDE_SPEC.
-	* win/configure: Regen.
-	* win/configure.in: Define TCL_INCLUDE_SPEC.
-	* win/tclConfig.sh.in: Define TCL_INCLUDE_SPEC.
-
-2001-11-07  David Gravereaux <davygrvy@pobox.com>
-
-	* win/rules.vc:
-	* win/makefile.vc: Dropped the NOMSVCRT macro and put it on the option
-	list instead. It makes more sense to me this way as NOMSVCRT=0 would
-	only be the valid setting. Fixed the dde and reg extension for
-	building static. Improved, but not perfected, the winhelp target.
-
-2001-11-07  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/README: Change minimum VC++ version to 5.X since 4.X is known
-	not to work.
-	Indicate that Mingw is required and building with Cygwin gcc is not
-	supported. Include instructions that indicate how to install Mingw and
-	what URLs folks should use to download the supported version of Mingw.
-	* win/configure: Regen.
-	* win/configure.in: Error out if user tries to compile the Windows
-	version of Tcl with Cygwin gcc. Users should compile with Mingw gcc
-	instead.
-
-2001-11-06  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* generic/tclIO.c (ReadChars): Fixed [Bug 478856] reported by Stuart
-	Cassoff <stwo@users.sourceforge.net>. The bug caused loss of
-	fileevents when [read]ing less data from the channel than buffered.
-	Due to an empty input buffer the flag CHANNEL_NEED_MORE_DATA was set
-	but never reset, causing the I/O system to wait for more data instead
-	of using a timer to synthesize fileevents and to flush the pending
-	data out of the buffers.
-
-2001-11-06  David Gravereaux <davygrvy@pobox.com>
-
-	* win/rules.vc (new):
-	* win/makefile.vc:  Complete over/under rewrite to support numerous
-	build options all from the commandline itself without needing to edit
-	the makefile. Now requires vcvars32.bat to be run prior to running
-	nmake for bootstraping the environment. Fully doc'd usage for it is in
-	makefile.vc. Commentary welcome. Sticky points left are:
-
-	1) winhelp target shows errors in the converting script.
-	2) .rc scripts aren't getting the right #defines to build the correct
-	   "OriginalFilename" strings. (have patch, won't commit yet)
-	3) Naming convention with suffixes describing the buildtype are 'tsdx'
-	   which will need public acceptance. ie. tclsh84tsx.exe is a (t)
-	   threaded shell (s) statically linked to the core and (x) uses
-	   msvcrt instead of libcmt.
-
-2001-11-04  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* library/init.tcl: made filesystem fallback proc ::tcl::CopyDirectory
-	more robust to vagaries of non-native filesystems.
-
-2001-11-02  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* doc/file.n:
-	* generic/tclIOUtil.c: updated documentation and comments to clarify
-	behaviour of 'file copy' wrt soft links.
-
-2001-10-29  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* win/tclWinFile.c: fix to '-types {f r}' bug in TclpMatchInDirectory
-	(which could cause a UMR, as well as returning wrong results). Also
-	improved API for 'stat' to resolve [Bug 219258].
-	* win/tclWin32Dll.c
-	* win/tclWinInt.h: addition of improved stat API to internal lookup
-	table.
-	* tests/fileName.test: two new tests for the above bug.
-	* generic/tclIOUtil.c: some cleanup of comments and #ifdefs
-
-2001-10-29  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* unix/tclUnixFile.c (TclpMatchInDirectory): Argument to access() was
-	entryPtr->d_name instead of nativeEntry which failed when trying to
-	check access for files in other than the current directory. [Bug
-	475941, reported by Georgios Petasis]
-
-2001-10-25  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* unix/tclUnixChan.c: Added stateUpdated member to struct TtyState.
-	(TtyCloseProc,TtySetOptionProc,TtyInit): Use stateUpdated member of
-	TtyState to decide whether it is necessary to reset a serial port when
-	Tcl closes it. Blindly resetting can cause Tcl to be sent an
-	unexpected SIGTSTP when it is executing in the background [Bug 471374,
-	reported by Chris Nelson]
-
-2001-10-22  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* doc/ObjectType.3: Minor documentation fix, reported by David N.
-	Welton <davidw@users.sourceforge.net> directly to me.
-
-2001-10-22  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* win/tclWinFCmd.c: fix to stop test suite from hanging process under
-	some versions of WinNT. [Bug 466102] (Kevin Kenny)
-
-2001-10-18  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tests/clock.test (clock-8.1):
-	* generic/tclDate.c (RelativeMonth):
-	* generic/tclGetDate.y (RelativeMonth): corrected off-by-one-day error
-	in clock scan with relative months and years during swing hours. [Bug
-	413397, Patch 414024] (lavana)
-
-2001-10-18  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclIOUtil.c: fix to bug in Tcl_FSChdir shown up by recent
-	tclkit builds.
-
-2001-10-17  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/tclUnixPipe.c (PipeInputProc, PipeOutputProc): do immediate
-	retry when error is returned with errno == EINTR. [Bug 415131] (leger)
-
-2001-10-16  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/tclLoadAout.c (TclGuessPackageName): removed unused vars and
-	fixed warnings. [Bug 446622] (lim)
-
-2001-10-15  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclProc.c: changing a memcmp to strncmp to avoid a memory
-	error detected by purify (thanks Jeff); modify style to agrre with the
-	style guide.
-
-2001-10-15  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* generic/tclInt.decls (TclExpandCodeArray,TclGetInstructionTable):
-	Added to internal stubs table. Tclcompiler (Tclpro project) needs them
-	if used as loadable package under Windows. Changed signatures. We
-	don't want to describe compiler internal structures in "tclInt.h".
-
-	* generic/tclCompile.h: S.a. Removed function declarations.
-	* generic/tclCompile.c: S.a. Adapted to changed signatures.
-
-2001-10-15  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/configure:
-	* unix/configure.in:
-	* win/configure:
-	* win/configure.in:
-	* win/tcl.m4: reworked to be a little cleaner in comparison to each
-	other, and to AC_SUBST even empty vars for win/tclConfig.sh
-
-	* generic/tclFileName.c: minor code cleanup
-
-	* generic/tcl.h: moved #define of WIN32 to tcl.h where __WIN32__ is
-	defined and added #ifndef check.
-
-	* doc/open.n: moved all fconfigure option docs to fconfigure.n
-	* doc/fconfigure.n: added serial config options
-
-	* win/tclWinChan.c:
-	* win/tclWinPort.h:
-	* win/tclWinSerial.c: added TIP #35 Windows enhancements for serial
-	configuration. [Patch 438509] (schroedter)
-
-2001-10-15  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFCmd.c: fix to memory leak in TclFileDeleteCmd on
-	certain error conditions.
-	* doc/FileSystem.3: fix to typo.
-
-2001-10-12  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* library/encoding/ebcdic.enc:
-	* tools/encoding/ebcdic.txt: EBCDIC charset mapping.
-	[Patch 219323] (nijtmans)
-
-	* library/encoding/tis-620.enc:
-	* tools/encoding/tis-620.txt: TIS-620 charset mapping.
-	[Patch 467423] (poonlap)
-
-	* tests/http.test: added removeFile for outdata
-
-	* tests/ioCmd.test: added catch around file removal, as Windows file
-	locking throws errors.
-
-	* tests/socket.test (socket-7.2): corrected to work on Win2K.
-
-2001-10-12  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* tests/compile.test: new tests for [Bug 467523]; they are only
-	effective if TCL_MEM_DEBUG was set during compilation.
-
-2001-10-11  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclLiteral.c (TclReleaseLiteral): insured that
-	self-referential bytecodes are properly cleaned up on interpreter
-	deletion [Bug 467523] (Ronnie Brunner)
-
-2001-10-10  David Gravereaux  <davygrvy@pobox.com>
-
-	* win/tclWinPort.h:  #include <winsock2.h> needed to get moved to
-	after #include <windows.h> or wierd misunderstandings took place when
-	-D_WIN32_WINNT=0x0400 is set for outside code that requires knowledge
-	of Tcl innards. General header macro magic applied liberally...
-
-2001-10-10  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/unixInit.test:	Corrected restore of ::env(LANG).
-
-2001-10-09  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclFileName.c (Tcl_SplitPath): corrected mem leak intro'd
-	with VFS code where the result obj from Tcl_FSSplitPath was not
-	getting freed.
-
-2001-10-09  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclLiteral.c: (TclReleaseLiteral) reverted previous patch
-	for [Bug 467523] - cure is worse than the illness.
-
-2001-10-05  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclLiteral.c: (TclReleaseLiteral) insured that
-	self-referential bytecodes are properly cleaned up on interpreter
-	deletion. [Bug 467523] (Ronnie Brunner)
-
-2001-10-04  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tools/configure:
-	* tools/configure.in: noted 8.4 as default Tcl version
-
-	* library/encoding/cp936.enc:
-	* library/encoding/cp949.enc:
-	* library/encoding/cp950.enc:
-	* library/encoding/iso8859-16.enc:
-	* library/encoding/macCroatian.enc:
-	* library/encoding/macCyrillic.enc:
-	* library/encoding/macGreek.enc:
-	* library/encoding/macIceland.enc:
-	* library/encoding/macRoman.enc:
-	* library/encoding/macTurkish.enc:
-	* tools/encoding/cp1250.txt:
-	* tools/encoding/cp1251.txt:
-	* tools/encoding/cp1252.txt:
-	* tools/encoding/cp1253.txt:
-	* tools/encoding/cp1254.txt:
-	* tools/encoding/cp1255.txt:
-	* tools/encoding/cp1256.txt:
-	* tools/encoding/cp1257.txt:
-	* tools/encoding/cp1258.txt:
-	* tools/encoding/cp874.txt:
-	* tools/encoding/cp932.txt:
-	* tools/encoding/cp936.txt:
-	* tools/encoding/cp949.txt:
-	* tools/encoding/cp950.txt:
-	* tools/encoding/iso8859-1.txt:
-	* tools/encoding/iso8859-10.txt:
-	* tools/encoding/iso8859-13.txt:
-	* tools/encoding/iso8859-14.txt:
-	* tools/encoding/iso8859-15.txt:
-	* tools/encoding/iso8859-16.txt:
-	* tools/encoding/iso8859-2.txt:
-	* tools/encoding/iso8859-3.txt:
-	* tools/encoding/iso8859-4.txt:
-	* tools/encoding/iso8859-5.txt:
-	* tools/encoding/iso8859-6.txt:
-	* tools/encoding/iso8859-7.txt:
-	* tools/encoding/iso8859-8.txt:
-	* tools/encoding/iso8859-9.txt:
-	* tools/encoding/koi8-r.txt:
-	* tools/encoding/macCentEuro.txt:
-	* tools/encoding/macCroatian.txt:
-	* tools/encoding/macCyrillic.txt:
-	* tools/encoding/macGreek.txt:
-	* tools/encoding/macIceland.txt:
-	* tools/encoding/macRoman.txt:
-	* tools/encoding/macTurkish.txt:
-	Updated encodings with latest mappings from www.unicode.org. This did
-	not include some Mac encodings that have special multi-unichar
-	translations now (like symbols, dingbats and japanese). Also does not
-	include big5, gb or euc* as those have different formats in the latest
-	Unicode version that need new conversion tools. Not all related .enc
-	files changed as some had been updates separately.
-
-2001-10-03  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclEvent.c (Tcl_FinalizeThread): moved freeing of
-	tclLibraryPath to before the thread exit handlers are called. Slight
-	modification to change on 2001-09-24.
-
-2001-10-01  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/configure: regen'ed
-	* win/tcl.m4:
-	* win/makefile.vc: added Win64 SDK RC1 compilation support
-	* win/Makefile.in: added $(LDFLAGS_CONSOLE) to TCLSH, TCLTEST and
-	PIPE_DLL_FILE targets to get the link flags
-
-	* win/tclWinInit.c: minor 64bit casts
-
-2001-10-01  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCmdIL.c:
-	* generic/tclCmdMZ.c:
-	* generic/tclParseExpr.c: removed unnecessary inclusion of
-	tclCompile.h and made a small modification in (InfoBodyCmd) to improve
-	the isolation of the compiler/engine subsystem.
-
-2001-09-29  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclIOUtil.c:
-	* doc/FileSystem.3: corrected and clarified documentation for
-	'Tcl_FSListVolumes(Proc)'. No code changes.
-
-2001-09-28  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* doc/FindExec.3: added a comment not to change the working directory
-	before calling Tcl_GetNameOfExecutable. [Bug 219215]
-
-2001-09-28  Kevin Kenny   <kennykb@users.sourceforge.net>
-
-	* generic/tclIO.c: added two more '(ClientData)' casts on calls to
-	Tcl_Preserve and Tcl_Release -- ones that Vince apparently missed.
-
-2001-09-28  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/lsort.n: Improved doc...
-	* generic/tclCmdIL.c (Tcl_LsortObjCmd, SortCompare): Made
-	offset-from-end indexing work, and factored out some "magic numbers"
-	for easier understanding. [Bug 465674]
-	* tests/cmdIL.test (cmdIL-1.26): Added test for offset-from-end
-	indexing for lsort.
-
-2001-09-28  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* win/tclWinFCmd.c:
-	* unix/tclUnixFCmd.c: fix to performance issue reported by jcw in
-	which 'access("")' is called unnecessarily when normalizing any
-	absolute path.
-	* generic/tclIO.c: added '(ClientData)' cast to calls to
-	Tcl_(Preserve|Release) newly introduced, fixing compile error on
-	Windows.
-
-2001-09-27  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/FileSystem.3 (Tcl_FSLoadFile):
-	* generic/tcl.decls (Tcl_FSLoadFile):
-	* generic/tcl.h (Tcl_FSLoadFileProc):
-	* generic/tclInt.h (TclpLoadFile):
-	* generic/tclIOUtil.c (Tcl_FSLoadFile):
-	* generic/tclLoadNone.c (TclpLoadFile):
-	* generic/tclTest.c (TestReportLoadFile):
-	* library/ldAout.tcl:
-	* mac/tclMacLoad.c (TclpLoadFile):
-	* unix/tclLoadAix.c (TclpLoadFile):
-	* unix/tclLoadAout.c (TclpLoadFile):
-	* unix/tclLoadDl.c (TclpLoadFile):
-	* unix/tclLoadDld.c (TclpLoadFile):
-	* unix/tclLoadDyld.c (TclpLoadFile):
-	* unix/tclLoadNext.c (TclpLoadFile):
-	* unix/tclLoadOSF.c (TclpLoadFile):
-	* unix/tclLoadShl.c (TclpLoadFile):
-	* win/tclWinLoad.c (TclpLoadFile):
-	* win/tclWinFCmd.c (DoRemoveJustDirectory):  More CONST poisoning
-	fixes from the 2001-09-24 TIP 27 changes. CONST-ified Tcl_FSLoadFile
-	and TclpLoadFile. Report and patch from Kevin Kenny. [Bug 465833]
-
-	* generic/tclIO.c (ChannelTimerProc):  Added Tcl_Preserve() and
-	Tcl_Release() to fix segfault introduced by the 2001-09-26 changes.
-	[Bug 465494]
-
-	* doc/TCL_MEM_DEBUG.3:  Updated out-of-date reference to #define
-	GUARD_SIZE.
-
-	* doc/UpVar.3 (Tcl_UpVar,Tcl_UpVar2):
-	* generic/tcl.decls (Tcl_UpVar,Tcl_UpVar2):
-	* generic/tclInt.decls (TclFindProc,TclGetFrame):
-	* generic/tclInt.h (TclFindProc,TclGetFrame,TclLookupVar,
-	(TclPrecTraceProc,TclProcInterpProc}):
-	* generic/tclProc.c (TclGetFrame,TclFindProc):
-	* generic/tclVar.c (Tcl_UpVar,Tcl_UpVar2,MakeUpvar):  Updated APIs in
-	generic/tclProc.c and generic/tclVar.c according to the guidelines of
-	TIP 27. [Patch 465442]
-
-	* generic/tclDecls.h:
-	* generic/tclIntDecls.h: make genstubs
-
-2001-09-26  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* doc/fileevent.n: Accepted [Patch 465279] adding an example to the
-	fileevent manpage. Minor modifications to get a better formatting.
-	Report and patch by David N. Welton <davidw@users.sourceforge.net>.
-
-	* The changes below fix [Bug 462317] where Expect tried to read more
-	than was in the buffers and then blocked in the OS call as its pty
-	channel driver provides no blockmodeproc through which the OS could be
-	notified of blocking-behaviour. Because of this the general I/O core
-	has to take more care than usual to preserve the semantics of
-	non-blocking channels.
-
-	The problem was reported by "Kevin O'Gorman" <kevin@kosmanor.com>.
-
-	* generic/tclIO.c (Tcl_ReadRaw): Do not read from the driver if the
-	channel is non-blocking and the fileevent causing the read was
-	generated by a timer. We do not know if there is data available from
-	the OS. Instead of going to the OS for more and potentially blocking
-	we simply signal EWOULDBLOCK to the higher levels to cause the system
-	to wait for true fileevents.
-	(GetInput): Same as before.
-	(ChannelTimerProc): Added set and clear of CHANNEL_TIMER_FEV.
-
-	* generic/tclIO.h (CHANNEL_TIMER_FEV): New flag for channels. Is set
-	if a fileevent was generated by a timer, the channel is not blocking
-	and the driver did not provide a blockmodeproc. In that case the I/O
-	core has to be especially careful about going to the driver for more
-	data.
-
-2001-09-26  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/SplitPath.3 (Tcl_GetPathType):
-	* generic/tcl.decls (Tcl_GetPathType):
-	* generic/tclFileName.c (Tcl_GetPathType):
-	* win/tclWinFile.c (TclpMatchInDirectory, NativeStat):  Vince Darley
-	reports the 2001-09-24 TIP 27 changes left the win directory CONST
-	poisoned. These changes should fix that.
-
-	* generic/tclDecls.h: make genstubs
-
-2001-09-25  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/GetInt.3:
-	* generic/tclInt.h (TclGetLong deleted):
-	* generic/tcl.decls:
-	* generic/tclInt.decls:
-	* generic/tclGet.c:  Updated APIs in generic/tclGet.c according to the
-	guidelines of TIP 27. [Patch 464674]
-
-	* generic/tclDecls.h:
-	* generic/tclIntDecls.h: make genstubs
-
-2001-09-25  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclVar.c: removed comments referring to unused flag
-	TCL_PARSE_PART1.
-
-2001-09-24  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/Concat.3:
-	* doc/DString.3:
-	* doc/SplitList.3:
-	* generic/tclInt.h (TclCheckBadOctal):
-	* generic/tcl.decls:
-	* generic/tclInt.decls:
-	* generic/tclEncoding.c (OpenEncodingFile):
-	* generic/tclMain.c (Tcl_Main):
-	* generic/tclUtil.c:
-	* unix/tclLoadDl.c (TclpLoadFile):  Updated APIs in generic/tclUtil.c
-	according to the guidelines of TIP 27. [Patch 464553]
-
-	* generic/tclDecls.h:
-	* generic/tclIntDecls.h: make genstubs
-
-2001-09-24  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	The change below fixes [Bug 464380]. The bug was reported by Ronnie
-	Brunner <rbrunner@users.sourceforge.net>. He also provided the patch.
-
-	* generic/tclEvent.c (Tcl_Finalize): Moved release of 'tclLibraryPath'
-	to Tcl_FinalizeThread.
-	(Tcl_FinalizeThread): See above, new place for release of
-	'tclLibraryPath'.
-
-2001-09-24  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tools/encoding/cp1252.txt: File was missing part of the encoding
-	[euro, ZCaron and zcaron].
-
-	* doc/OpenFileChnl.3: Add docs for Tcl_OutputBuffered; remove some old
-	changebars.
-
-2001-09-21  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclExecute.c (TclExecuteByteCode): corrected INST_STR_CMP
-	else case for strings to pass true utf char length to Tcl_UtfNCmp.
-
-2001-09-20  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/tclWinInit.c: added extra processor definitions. (mstacy)
-
-	* win/tclWinSock.c (SocketThread): corrected pointer cast for _WIN64.
-
-	* win/tclWinNotify.c: removed unnecessary winsock include (it is
-	already in from tclWinPort.h).
-
-	* win/tclWinPort.h: changed winsock.h include to winsock2.h. Reverses
-	change from 2000-11-16, but is necessary for WIN64. Extensions should
-	comply with defined OS words, or use #ifndef.
-
-2001-09-20  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/socket.test: removed dependence on being run from same dir as
-	remote.tcl, which only now needs to be in the same dir as this file.
-	[Bug 219326]
-
-2001-09-19  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclTest.c (TestcmdtokenCmd): corrected pointer
-	storage/retrieval for 64bit machines.
-
-	* generic/tclCmdAH.c (Tcl_FormatObjCmd):
-	* generic/tclScan.c (Tcl_ScanObjCmd): corrected handling of format and
-	scan on 64-bit machines. [Bug 412696] (rmax)
-
-	* unix/configure: regen'ed
-	* unix/tcl.m4: added --enable-64bit support for HP-11 with the 64-bit
-	kernel.
-
-	* tests/basic.test:
-	* tests/cmdInfo.test: improved skip reporting of missing commands
-
-	* tests/winFCmd.test: simplified error check for winFCmd-7.9
-
-	* tests/winPipe.test: removed obsolete cat16 tests
-
-	* generic/tclExecute.c (TclExecuteByteCode): fixed invalid usage of
-	valuePtr in TRACE_WITH_OBJ in INST_EVAL_STK case. [Bug 462594] Changed
-	INST_STR_CMP instruction to promote to Unicode strings only when one
-	of the strings is already of Unicode type.
-
-	* generic/tclExecute.c (TclExecuteByteCode):
-	* generic/tclCompile.c (instructionTable):
-	* generic/tclCompCmds.c (TclCompileStringCmd): INST_STR_MATCH -
-	Updated to Int1 instruction type and added special case to use
-	INST_STR_EQ instead when no glob chars are specified in a static
-	string.
-
-	* tests/{for.test,foreach.test,if.test,while.test}:
-	* generic/tclCompCmds.c (TclCompileForCmd, TclCompileForeachCmd,
-	TclCompileIfCmd, TclCompileWhileCmd): Corrected the overaggressive
-	compiling of loop bodies enclosed in ""s.  [Bug 219166] (msofer)
-
-2001-09-19  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c: insured that execution stack errors are also
-	detected at abnormal returns.
-
-2001-09-19  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/socket.n: Added documentation to mention what happens when a
-	server socket is created with port=0. Removed an old change bar, and
-	no new change bar because Tcl has always behaved this way as it is
-	really a poorly-documented standards-defined OS feature.
-
-	* tests/util.test (util-8.1): Test derived from code to detect the
-	problem, but the test always works in the C locale, so beware if you
-	are maintaining the code.
-	* generic/tclUtil.c (TclNeedSpace): Rewrote to be UTF-8 aware. [Bug
-	411825, but not that patch which would have added extra spaces if
-	there was a real non-ASCII space involved.]
-
-2001-09-18 Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* generic/tclIOCmd.c (Tcl_PutsObjCmd): Rewritten to have saner and
-	faster argument handling. [Bug 123552], [Patch 402564] (fellows)
-
-2001-09-18  Don Porter  <dgp@users.sourceforge.net>
-
-	* unix/configure: Regen.
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): On Linux, disable inlining when one
-	of the compat/*.c routines is to be linked in. [Patch 440891]
-
-2001-09-17  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tcl.h: removed forced #define USE_TCLALLOC 1 for Windows.
-	This means the native system allocator will be used by default. This
-	should be binary and source compatible with extensions, as Tcl_Alloc
-	is a properly stubbed function.
-
-2001-09-17  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c: corrected small bug in [Patch 456668] - the
-	varFramePtr was not restored in one possible exit.
-
-2001-09-17  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* doc/tclvars.n:
-	* generic/tclCompile.c:
-	* generic/tclCompile.h:
-	* generic/tclExecute.c:
-	* generic/tclProc.c: disabled all compile and execution tracing
-	functionality in standard builds; TCL_COMPILE_DEBUG is now necessary
-	to enable it. [Bug 451858]
-
-2001-09-14  Andreas Kupries <andreas_kupries@users.sourceforge.net>
-
-	* doc/gets.n:
-	* doc/read.n:
-	* doc/puts.n:
-	* doc/flush.n:
-	* doc/fconfigure.n:
-	* doc/flush.n:
-	* doc/eof.n:
-	* doc/seek.n:
-	* doc/tell.n:
-	* doc/close.n:
-	* doc/fileevent.n: Added references to the Tcl standard channels. Item
-	[219250], reported by David LeBlanc <whisper@oz.net>. Thanks to
-	Christopher Nelson <chris@pinebush.com> for doing editorial work.
-
-2001-09-13  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* win/Makefile.in:
-	* win/configure.in:
-	* win/makefile.bc:
-	* win/makefile.vc:
-	* library/dde/pkgIndex.tcl: Fixed version numbers from bogus tcl
-	versions to independent versions for dde and registry packages.
-
-2001-09-13  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tests/regexp.test (regexp-20.1):
-	* generic/tclCmdMZ.c (Tcl_RegsubObjCmd): had to adjust fix from
-	2001-08-06 to actually duplicate the objects in certain cases. This is
-	really a place where feather would have been essential. [Bug 461322]
-
-	* generic/tclUtf.c (Tcl_UtfPrev): corrected to return the proper
-	location when the middle of a UTF-8 byte was passed in [Tk Bug 450504]
-
-	* ChangeLog.1999:
-	* ChangeLog: broke changes from 199x into ChangeLog.1999 to reduce
-	size of the main ChangeLog.
-
-2001-09-13  Andreas Kupries <andreas_kupries@users.sourceforge.net>
-
-	* tests/ioCmd.test: Changed the computation of the result for
-	iocmd-8.1[123] so that the tests work for single- and multi-process
-	execution of the testsuite. Depending on the choice of the user stdout
-	is a tty or not and thus reports different channel options. Fixes
-	[460993] reported by Don Porter.
-
-2001-09-13  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* doc/ParseCmd.3:
-	* generic/tcl.decls:
-	* generic/tclCmdMZ.c (Tcl_SubstObjCmd):
-	* generic/tclDecls.h:
-	* generic/tclParse.c:
-	* generic/tclStubInit.c:
-	* tests/parse.test: Deprecate the use of Tcl_EvalTokens, replaced by
-	the new Tcl_EvalTokensStandard. The new function performs the same
-	duties but adheres to the standard return convention for Tcl
-	evaluations; the deprecated function could only return TCL_OK or
-	TCL_ERROR, which caused [Bug 219384] and [Bug 455151]. This patch
-	implements [TIP 56].
-
-2001-09-12  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure: Regen.
-	* unix/tcl.m4: Invert the logic that checks for $GCC. Instead of
-	checking for "$GCC" = "no" we check for "$GCC" != "yes" or simply swap
-	the true and false blocks of code in an if statement. That way if GCC
-	is set to "" everything will still work. [Bug 460991]
-
-2001-09-12  Don Porter <msofer@users.sourceforge.net>
-
-	* tests/appendComp.test:
-	* tests/lsearch.test:
-	* tests/namespace.test:
-	* tests/rename.test:
-	* tests/split.test:  Corrected tests to better isolate tests in one
-	file from influencing tests in other files. [Bug 460591]
-
-2001-09-12  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tcl.decls: reserved stub #481 for the implementation of
-	[TIP 56]
-
-2001-09-11  Andreas Kupries <andreas_kupries@users.sourceforge.net>
-
-	* doc/OpenFileChnl.3: Added documentation for Tcl_WriteRaw and
-	Tcl_ReadRaw [Bug 414929].
-
-	* doc/CrtChannel.3: Added documentation for Tcl_ChannelBuffered and
-	Tcl_GetTopChannel [Bug 414929].
-
-	* The changes below are a fix for [Bug 219253].
-
-	* tests/socket.test: Removed _most_ instances of hardwired port
-	numbers for listening sockets. Remaining are the ports in all tests
-	with constraint 'doTestsWithRemoteServer'. These seem to be designed
-	for a more controlled environment and are usually skipped when running
-	the testsuite.
-
-	* tests/io.test: Removed all instances of hardwired port numbers for
-	listening sockets.
-
-2001-09-10  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclEvent.c (TclInExit): Corrected handling of tsd in late
-	stages of finalization. [Bug 419449] (darley)
-
-	* tests/stack.test:
-	* generic/tclInterp.c (AliasObjCmd): Check the numLevels to ensure
-	that we aren't hitting some alias loop condition. [Bug 443184]
-
-2001-09-10  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure: Regen.
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): Don't include . characters in the
-	Tcl library name when building on FreeBSD 3.X and later systems.
-	[Patch 450725]
-
-2001-09-10  Andreas Kupries <andreas_kupries@users.sourceforge.net>
-
-	* doc/tclsh.1:
-	* doc/Tcl_Main.3:
-	* doc/CrtChannel.3:
-	* doc/OpenFileChnl.3:
-	* doc/GetStdChan.3: Enhanced the manpages with cross-references to
-	the new manpage and more explanations how these functions deal with
-	the standard channels in various situations.
-
-	* doc/StdChannels.3: New manpage describing handling of the standard
-	channels by the Tcl library. [Bug 402725]
-
-2001-09-10  Don Porter <dgp@users.sourceforge.net>
-
-	* unix/mkLinks (Tcl_FSLink): Updated to reflect 2001-08-23 file system
-	changes.
-
-	* unix/tclLoadShl.c:  Added #include of tclInt.h; access to Tcl
-	internals, notably TclpUnloadFile(), is required. Thanks to Bob
-	Techentin for report and patch. [Bug 459305]
-
-	* generic/tclInitScript.h (initScript):
-	* win/tclWinInit.c (TCL_REGISTRY_KEY, TclpSetVariables):  Removed
-	vestiges of Tcl's old initialization from registry variables. [Bug
-	455645]
-
-2001-09-10  Andreas Kupries <andreas_kupries@users.sourceforge.net>
-
-	* generic/tclInt.decls: Also added 'TclWinFlushDirtyChannels' to the
-	  internal platform specific stub table.
-
-	* win/tclWinFile.c (TclpObjStat): Now added the call to
-	'TclWinFlushDirtyChannels' to this function. I don't know where my
-	head was last thursday (2001-09-06), but the call was actually added
-	to 'TclpObjChdir', i.e. the implementation of [cd]. Corrected this
-	now. Thanks to Vince Darley for spotting this.
-
-2001-09-10  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclProc.c:
-	* tests/proc.test: made [proc] bytecompile a no-op for procs defined
-	with _args_ as single argument and an empty body. [FRQ 451441]
-
-2001-09-09  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/Makefile.in:
-	* win/Makefile.in: Use () around variable name instead of {}. Use
-	TCLTEST variable directly instead of depending on the tcltest alias.
-
-2001-09-09  David Gravereaux <davygrvy@pobox.com>
-
-	* generic/tcl.h:
-	* generic/tclPlatDecls.h: Reminder from David Cuthbert
-	<dacut@kanga.org> that I hadn't finished the Borland compatibility
-	stuff. [Patch 436116]
-
-2001-09-09  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* tests/cmdAH.test: Modify cmdAH-20.5 and cmdAH-24.8 to display the
-	file atime or mtime results if the test fails.
-
-2001-09-08  David Gravereaux <davygrvy@pobox.com>
-
-	* win/mkd.bat:
-	* win/rmd.bat: made these text files, text files again. [Patch 451333]
-
-2001-09-08  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/mkd.bat:
-	* win/rmd.bat: Apply binary property (cvs admin -kb) to files and
-	convert to CRLF linefeed format to fix the VC++ build. [Bug 219409]
-
-2001-09-08 Vince Darley <vincentdarley@users.sourceforge.net>
-
-	* generic/tclInt.h:
-	* generic/tclFCmd.c:
-	* doc/FileSystem.3:
-	* generic/tclIOUtil.c: removed Tcl_FSCopyFile fallback to channel
-	copying, since the channels will not have access to interpreters and
-	the channel copying currently requires an interp. Code which required
-	cross-platform copies always has interpreters, so that solves the
-	problem. Fixes bug in TclKit.
-
-2001-09-07  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tcl.m4: Added -link50compat option so a VC6 linker makes a VC5
-	(pre sp3) compatible import library. [Bug 219257]
-
-2001-09-07  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/tclWinThrd.c (TclpThreadExit): Cast status argument to
-	_endthreadex to unsigned instead of DWORD to match the Win32 function
-	prototype.
-
-2001-09-06  Andreas Kupries <andreas_kupries@users.sourceforge.net>
-
-	* All the changes below serve to fix bug [219148] which reports a 80x
-	performance hit for file I/O on Win* systems. On my system it was
-	closer to a 120x hit. Problem report by Uwe Traum <no email address
-	available>.
-
-	The fix goes like this: The obstacle is 'FlushFileBuffers', executed
-	whenever Tcl writes data to the OS, as Tcl has to wait for the disk to
-	complete I/O, and disks are slow. We remove that obstacle. This opens
-	another problem, [file size] reports back wrong numbers. So for [file
-	size] we add the call back in. As optimization we keep track of the
-	channels which were written to and flush only these.
-
-	* win/tclWinFile.c (TclpObjStat): Added a call to
-	'TclWinFlushDirtyChannels'. This ensures that [file size] and related
-	commands report the correct size of a file even if Tcl has recently
-	written to it. Unixoid OS's always report the correct size even for
-	files with pending data, but Win* syssystem don't. They only report
-	what is actually on disk.
-
-	* win/tclWinInt.h: Added declaration of 'TclWinFlushDirtyChannels',
-	making it available to other parts of the tcl core.
-
-	* win/tclWinChan.c (TclWinFlushDirtyChannels): New, internal,
-	procedure. Goes through the list of open file channels and forces the
-	OS to flush its file buffers for all which were written to since the
-	last call of this function. This is an expensive operation as Tcl has
-	to wait for the OS to complete actual writes to the disk.
-
-	(FileInfo): Added dirty flag required by the procedure above.
-
-	(FileOutputProc): Removed flushing of file buffers, setting the dirty
-	flag instead. This means that the previously incurred delays do not
-	happen anymore.
-
-	(TclWinOpenFileChannel): Added initialization of 'dirty' flag.
-
-2001-09-06  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* doc/http.n: noted -binary, charset and coding state keys.
-	* tests/http.test:
-	* library/http/pkgIndex.tcl:
-	* library/http/http.tcl (geturl): correctly get charset parameter
-	and convert text according to specified encoding (if known). RFC
-	iso8859-1 is used by default. Also recognize Content-encoding to see
-	if we should do binary translation. Added a CYA -binary switch for the
-	cases that were missed. [Bugs 219211, 219399]
-
-	* tests/ioUtil.test: changed to make better use of constraints and
-	remove knownBug constraints that weren't valid.
-
-2001-09-06  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/unixInit.test (unixInit-3.2): Updated test to support newer
-	HP-UX releases that properly report euc-jp as the system encoding for
-	Japanese. Bug report and patch verification by Bob Techentin. [Bug
-	453883]
-
-	* doc/http.n:
-	* library/http/*.tcl:
-	* tools/tcl.wse.in:
-	* tools/tclmin.wse:
-	* unix/Makefile.in:
-	* win/{Mm}akefile.*:  Updated http package to version 2.4, reflecting
-	the new features just added.
-
-2001-09-06 Vince Darley <vincentdarley@users.sourceforge.net>
-
-	* generic/tclTest.c: tests of old-fs hooks no longer cause problems in
-	threaded builds. Also removed unused unload proc.
-	* generic/tcl.decls:
-	* generic/tclIOUtilc: added Tcl_FSMountsChanged so that a vfs can
-	inform the filesystem that the filesystem epoch must be changed (since
-	cached filesystems may now be incorrect). Fixes problem running tclvfs
-	extension.
-	* library/tcltest/tcltest.tcl: if tests aren't in a native filesystem,
-	then don't use pipes to run them. [Bug 458741]
-
-2001-09-06  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tcl.decls (479 generic):
-	* generic/tclIO.c (Tcl_Seek,Tcl_Tell,Tcl_OutputBuffered): Added public
-	function to return the size of the output buffer and reworked other
-	channel functions to use this shared functionality and that of
-	Tcl_InputBuffered() too. [TIP#49, Rolf Schroedter]
-
-2001-09-05  David Gravereaux <davygrvy@pobox.com>
-
-	* generic/tclPlatDecls.h:  Another small trim finalizing Borland
-	support.
-
-	* win/tclWinPipe.c:
-	* win/tclWinPort.h:  More Borland compatibility fixes. Changed EDQUOT
-	#define from 49 to 69. Borland had a clash as it was already using
-	this number. Upon advice from Helmut Giese, EDQUOT has been found in
-	other header files #defined as 69. [Patch 436116]
-
-	* win/.cvsignore:  A few more glob patterns added.
-
-	* win/makefile.bc (new):  Borland lives once more! rejoice..
-	* generic/tclAlloc.c: Small Borland compatibility fix.
-	* win/tclWinTime.c:  More Borland compatibility fixes. [Patch 436116]
-
-2001-09-05 Vince Darley <vincentdarley@users.sourceforge.net>
-
-	* tests/winFCmd.test: made notWin2000 constraint false if not running
-	on Windows at all.
-
-2001-09-04  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinThrd.c:  Revisited _beginthreadex() stuff. Instead of
-	assuming a c-runtime implimentation of _beginthreadex normal, I
-	reversed the logic to not assume, and use when is by explicitly
-	needing to add runtimes that support it such as Borland.
-
-	* generic/tcl.h:
-	* generic/tclPlatDecls.h:  Borland compatibility change so ClientData
-	was properly typed as a void* and TCHAR would not be defined twice.
-
-	* generic/tcl.h:  Removed a small mistake from before. Changes to the
-	EXTERN macro for proper Borland compatibility will have to see a TIP.
-	What's this with the MS compiler:
-
-		__declspec(dllexport) int func (int a, int b);
-
-	will have to be this with Borland:
-
-		int __cdecl __export func (int a, int b);
-
-	The order of the attribute needs to be after the return type.
-
-2001-09-04  Don Porter  <dgp@users.sourceforge.net>
-
-	* compat/strtod.c (strtod):  Fixed failure to handle expressions like
-	3eq2 and failure to set errno on overflow. [Bug 440894]
-
-2001-09-04  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclProc.c:
-	* tests/proc.test: made [proc] check that formal args have simple
-	names. [Bug 458548]
-
-2001-09-04 Vince Darley <vincentdarley@users.sourceforge.net>
-
-	Minor bug fixes in filesystem, plus small vfs changes as a result of
-	enabling the test filesystem to work properly.
-	* tests/fileName.test: ensure new test cleans up after itself
-	* doc/filename.n:
-	* generic/tclFileName.c: improved Mac path handling and document why
-	[Bug 421842] on Windows handling of UNC paths is not valid.
-	Documentation and code now much clearer on what is and is not a UNC
-	path.
-	* doc/FileSystem.3:
-	* unix/tclUnixPipe.c:
-	* generic/tclFCmd.c:
-	* generic/tclIOUtil.c: fixed error message, fixed [Bug 453512] about
-	dangerous use of tmpnam, replaced with mkstemp. Documented all the
-	changes.
-	* generic/tclTest.c: made test vfs fully functional as a 'reporting
-	filesystem'.
-	* generic/tcl.stubs:
-	* generic/tcl.h:
-	* generic/tclInt.h:
-	* generic/tclIOUtil.c:
-	* doc/file.n:
-	* various platform-specific 'TclpLoadFile': fixed comments about
-	unload behaviour, and completed objectification of loading. Required
-	change to Tcl_Filesystem lookup table, so incompatible with 8.4a3, but
-	not older versions of Tcl. The change also allows 'link' and
-	'reporting' filesystems to function correctly when loading files.
-	Implementation of 'file delete -force' copes with case where cwd is
-	inside the directory. Moved overlooked Tcl_FSGetPathType from internal
-	to external API. Made sure filesystems which are registered and then
-	unregistered are only freed when all references to them are gone.
-	Documented changes.
-	* unix/tclUnixFCmd.c: when deleting directories recursively, make sure
-	permissions are ok. Together with the above, this fixes [Bug 219139]
-	* tests/winFCmd.test: differentiated test results for win2k versus
-	not. This fixes [Bug: 219239]
-	* tests/fCmd.test: added tests for 'file delete -force' where the cwd
-	is inside, and when permissions are inadequate.
-
-2001-09-04  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCompile.c: fixed incorrect operands for INST_LIST [Bug
-	458241] (David Cuthbert, dacut@users.sourceforge.net)
-
-2001-09-03  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclExecute.c (TclExecuteByteCode): fixed missing comma in
-	debug macro.
-
-2001-09-03  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/ExprLongObj.3: Fixed error in documentation of argument type to
-	Tcl_ExprObj [Bug 457435]
-
-2001-09-02  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinThrd.c:  Portability fix for Cygwin who's c-runtime,
-	not surprisingly, doesn't have the MSVCRT specific _beginthreadex /
-	_endthreadex pair. This might have to be revisited for proper Borland,
-	lcc32, Watcom and other support as well. [Patch 444255]
-
-	* win/tclWinThrd.c:  Moved FinalizeConditionEvent() proto to within
-	the main #ifdef TCL_THREADS block to avoid mingw warning about it
-	being there but unused.
-
-	* win/makefile.vc:  Added -Zl (zee el) to tclStubLib.c compile line to
-	make sure the tclstub84.lib static library is built without requiring
-	a specific C-runtime library at link-time for the end-use developer.
-	It has been noted on c.l.t that this trips many first time users
-	trying to make extensions. [Patch 403533]
-
-2001-08-31  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclInt.h: added TclCompileListCmd header
-	* generic/tclBasic.c: added TclCompileListCmd compile proc
-	* generic/tclCompCmds.c (TclCompileListCmd): function to compile the
-	'list' command at parse time.
-	* generic/tclExecute.c (TclExecuteByteCode): definition of INST_LIST
-	bytecode.
-
-	* doc/StringObj.3: added words of warning to use Tcl_ResetResult with
-	the Tcl_Append* functions.
-
-	* tests/compile.test: added compile-11.* interp result checks
-	* generic/tclUtil.c (TclGetIntForIndex): added Tcl_ResetResult before
-	Tcl_AppendStringsToObj to prevent shared object crash when called from
-	bcc instruction. The Tcl_Append* calls that append to the result
-	object that are invoked by bcc insts must remember to call
-	Tcl_ResetResult because the bcc doesn't do this for us. [Bug 456892]
-
-2001-08-30  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclIndexObj.c: fixed some casting problems that upset Crays.
-	[Bug 419528] (andreasen)
-
-2001-08-30  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tcl.h: Silence warning from Sun compiler. [Bug 454374]
-
-2001-08-30  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c: allow cached fully-qualified command names to
-	be usable from different namespaces within the same interpreter
-	without forcing a new lookup. This speeds up scripts that pass command
-	names in variables ("this" in some OO packages). [Patch 456668]
-
-2001-08-30 Vince Darley <vincentdarley@users.sourceforge.net>
-
-	Further fs updates. After examining the most common Tcl extensions
-	(TclX, BLT, Tk, TclPro, Mktclapp), it has been determined that only
-	TclpGetCwd and the Access/Stat/Open insert/delete hooks of the
-	internal fs functions are ever used. The remaining functions from
-	Tcl's internal interfaces have therefore been removed, since Tcl now
-	exports a more suitable public API (Tcl_FS...)
-
-	* generic/tclInt.stubs:
-	* generic/tclInt.h: updated for removed internal functions. Some new
-	internal functions have been put in tclInt.h (and not exported in the
-	stub table because good public equivalents exist).
-	* generic/tclTest.c: some test functions used the internal private
-	APIs. These tests have been retained, but modified to use public APIs.
-	Also objectified the internal filesystem tests.
-	* win/tclWinFile.c: removed TclpStat, TclpAccess and refactored code
-	to use NativeAccess, NativeStat. This should speed up stat, access and
-	glob commands.
-	* win/tclWinFCmd.c: removed all TclpCopy/Rename/Delete File/Directory
-	string-based procedures which aren't used any more. Improved
-	efficiency of some other procedures. Ensure that filename conversions
-	with a NULL interp do not crash Tcl.
-	* mac/tclMacFCmd.c: wrapped long lines and cleaned up
-	TclpObjNormalizePath, removed all TclpCopy/Rename/Delete
-	File/Directory string-based procedures which aren't used any more.
-	* mac/tclMacFile.c: removed obsolete TclpStat, TclpAccess, TclpChdir,
-	etc.
-	* unix/tclUnixFCmd.c: removed use of TclpAccess, removed all
-	TclpCopy/Rename/Delete File/Directory string-based procedures which
-	aren't used any more.
-	* unix/tclUnixFile.c: removed obsolete TclpStat, TclpAccess,
-	TclpChdir, etc.
-	* tcl(Unix|Mac|Win)Chan.c: objectified TclpOpenFileChannel.
-	* various 'load' implementations all objectified.
-	* generic/tclFileName.c: removed redundant code.
-	* generic/tclIOUtil.c: removed TclStat, TclAccess, TclpListVolumes.
-	Fix to MatchInDirectory at the root of a volume. Also improved some
-	documentation, and improved default path joining behaviour for virtual
-	filesystems, especially regarding '~'.
-	* tests/fileName.test: added tests to check for bugs fixed above.
-	* doc/FileName.3: improved documentation
-
-2001-08-30  David Gravereaux <davygrvy@pobox.com>
-
-	* generic/tclAsync.c:
-	* generic/tclEvent.c:
-	* generic/tclInt.h: Improper cleanup of asyncMutex in tclAsync.c
-	repaired. TclFinalizeSynchronization() was trying to remove a
-	registered mutex that was dumped earlier when the TSD it was stored in
-	was cleared. This was only surfacing on *nix. Windows was being masked
-	by mutexes not actually being returned to the system! That was
-	repaired in a previous patch. Needed to add a private
-	TclFinalizeAsync() to tclAsync.c and called from Tcl_FinalizeThread().
-	Pheww.. Is this done yet? [Bug 414419] requested by Rob Ratcliff
-	<rrr6399@futuretek.com>
-
-2001-08-28  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclCompCmds.c (TclPushVarName): noted 'static' defn.
-	[Bug 453872]
-
-2001-08-26  Don Porter <dgp@users.sourceforge.net>
-
-	* library/auto.tcl (tcl_findLibrary):
-	* tests/unixInit.test (unixInit-2.{1,9}):
-	* unix/tclUnixInit.c (TclpInitLibraryPath):
-	* win/tclWinInit.c (TclpInitLibraryPath):  Corrected inconsistency
-	between  the search path for script libraries and the directory name
-	$DISTNAME into which distributions built by 'make test' unpack. [Bug
-	455642]
-
-2001-08-24  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tests/stringComp.test: added string-1.3
-	* generic/tclCompCmds.c (TclCompileStringCmd): changed to return
-	TCL_OUT_LINE_COMPILE instead of TCL_ERROR when compiling and an
-	unknown string method is called. This is necessary as the string
-	command may be never called, or not until 'string' is redefined.
-
-2001-08-24 Vince Darley <vincentdarley@users.sourceforge.net>
-
-	* doc/glob.n: documented windows-style path issue with glob.
-	[Bug 219392]
-	* doc/filename.n: documented windows path/file length limitation.
-	[Bug 454597]
-
-2001-08-24  Don Porter <dgp@users.sourceforge.net>
-
-	* tests/unixInit.test (unixInit-2.9): Corrected expected result to
-	match Tcl's quirky construction of its init library path.
-
-2001-08-23  Andreas Kupries <andreas_kupries@users.sourceforge.net>
-
-	* win/tclWinPipe.c (BuildCommandLine): Fixed [Bug 432499]. Part of the
-	code used the non-absolute path to the executable to determine
-	quoting. This failed if the absolute path contained spaces, but the
-	application name itself not. This bug caused no trouble on Win NT 5,
-	but does for other variants in the Win* family. Report and fix due to
-	Ken Poole <kenpoole@users.sourceforge.net>.
-
-2001-08-23  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/configure:
-	* unix/tcl.m4: added QNX-6 build support. [Bug 219410] (loverso)
-
-	* unix/tclUnixFCmd.c:
-	* generic/tclIOUtil.c:
-	* generic/tclFileName.c: corrected minor compiler warnings.
-
-2001-08-23 Vince Darley <vincentdarley@users.sourceforge.net>
-
-	Variety of small filesystem and vfs issues fixed or improved. The new
-	fs code allows many new opportunities for efficiency improvements
-	through the objectified API. The main changes integrated here are such
-	efficiency improvements. Some limitations of the original
-	implementation have also now been lifted. Meanwhile a variety of fs
-	bugs (some old, some new) have also been fixed.
-
-	* generic/tclFileName.c: Made Tcl_FSSplitPath more efficient, and
-	removed some static string-based procedures which are no longer used.
-	Much more objectification. Tcl_FSJoinPath is now very efficient and
-	more aware of virtual filesystems. Clarified where the Mac-specific
-	code attempts to interpret Unix-style paths. Modified TclDoGlob to use
-	lstat not access to fix [Bug 434876] (L. Virden)
-
-	* tcl(Win|Unix|Mac)FCmd.c:
-	* tcl(Win|Unix|Mac)File.c: replaced TclpListVolumes with
-	TclpObjListVolumes with different signature, updated code due to more
-	efficient signature of Tcl_FSGetTranslatedPath. Used cached native
-	paths where possible to improve efficiency -- this was completed on
-	MacOS, but on Unix and Win the traversal functions make the task much
-	more complex, so there are still some improvements possible there.
-	Removed unused TclpNormalizePath which had been left in tclWinFCmd.c.
-	Objectified all 'file attributes' functions. Fixed the new [Bug
-	451571, Bruce Stephens] which is most obvious on Unix, but could occur
-	on MacOS or Windows. This bug actually existed in Tcl 8.3.x but was
-	only made obvious by the recent filesystem overhaul when the code was
-	exercised more heavily.
-	* tests/fileName.test: Three new tests to exercise the above bug, and
-	make sure it is fixed correctly.
-	* unix/tclUnixFile.c: avoid panic in glob when a link doesn't point
-	anywhere. It would probably be good to define exactly what Tcl should
-	do in circumstances like these, and make sure mac/win/unix all behave
-	accordingly. [Bug 417111] (Hemang Lavana). Also fixed
-	misleading/obsolete comment in the code.
-	* generic/tcl.stubs: changed signature of Tcl_FSGetTranslatedPath and
-	added Tcl_FSGetTranslatedStringPath.
-	These changes allow further optimisations in the FS code.
-	* generic/tcl.h: changed signature of Tcl_FSListVolumes so that it
-	doesn't require a Tcl interpreter plus result. Renamed Tcl_FSReadLink
-	to Tcl_FSLink with additional argument so we can support making links
-	in the future. [Patch: 450340]
-	* generic/tclInt.h: added declaration for TclpObjListVolumes.
-	Objectified internal call signatures for 'file attributes' functions,
-	and added an internal objectified get path type function.
-	* generic/tclIOUtil.c: added the moved function TclpListVolumes which
-	calls platform specific code (needed for backwards compatibility), and
-	improved efficiency of parts of the FS (particularly file
-	normalization). Much less copying and memory allocation is required
-	now. added new GetPathType so that changes in 'file volumes' can
-	actually affect files' types, and objectified more code. Made current
-	code work with test suite artificially changing current platform.
-	Added 'static' keywords where required.
-	* generic/tclIO.c:
-	* generic/tclTest.c: Added 'static' keywords, fixing [Bug 453872] (Bob
-	Techentin)
-	* generic/tclCmdAH.c: file command implementation updated for API
-	changes, removed unnecessary special-case SplitPath static function,
-	since it no longer helps prevent code duplication. Moved setting of
-	interpreter result to each individual location that actually required
-	it, to avoid very large code separation between reading and setting
-	the result.
-	* doc/FileSystem.3: updated documentation for the new or changed APIs,
-	and clarified some issues.
-	* doc/SplitPath.3: added pointer to newer APIs in FileSystem.3
-	* doc/filename.n: clarified current implementation of tilde support on
-	Mac/Win.  [Bug 453514] (Sergey Kuzmin)
-	* doc/glob.n: improved documentation for '-directory' and '-path'
-	options.
-
-	There are now many private, obsolete, platform-specific 'Tclp'
-	string-based filesystem APIs which could be removed. We should check
-	whether any of these are used by extensions and, at least in Tcl 9,
-	remove them.
-
-	The above changes signify a ***POTENTIAL INCOMPATIBILITY*** with
-	8.4a3, since signatures of two functions in the new API have changed,
-	but not with older versions of Tcl.
-
-2001-08-23  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclBinary.c (FormatNumber): Extract a long from the object
-	and not an int, to stop [binary format] from being unable to format
-	some input numbers on architectures where sizeof(int) is less than
-	sizeof(long) (particularly Alpha). [tiprender Bug 441861]
-
-	* tests/format.test: Converted conditional execution of tests into a
-	test constraint.
-
-2001-08-22  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/Makefile.in:
-	* win/makefile.vc: updated install target for dde1.2
-	* doc/dde.n: fixed dde man page (which was totally incorrect).
-	* tests/winDde.test:
-	* win/tclWinDde.c (Tcl_DdeObjCmd): added -binary option to dde request
-	command to allow for returning binary data. [Bug 227482]
-	Updated dde to 1.2
-
-	* tests/tcltest.test: added unixExecs constraint to files that used
-	'grep' in the test. [Bug 453143]
-
-	* library/tcltest/tcltest.tcl: fixed stdio constraint test. [Patch
-	454050] (stanton)
-	Simplified unixExecs constraint test.
-
-2001-08-22  Don Porter <dgp@users.sourceforge.net>
-
-	* tests/ioUtil.test (ioUtil-3.*): Corrected errors in tests revealed
-	by fix of overagressive compiler. [Bug 451200]
-
-2001-08-21  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCompCmds.c:
-	* tests/compile.test: Fixed overagressive compilation of [catch]: it
-	was catching errors at substitution time. [Bug 219184]
-
-2001-08-21  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tests/tcltest.test (tcltest-12.2): fixed test that would break when
-	env vars weren't Tcl list friendly [Patch 454046] (stanton)
-
-2001-08-20  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* library/http/http.tcl (geturl): added port number to Host: header to
-	comply with HTTP/1.1 spec (RFC 2068). [Bug 452217]
-
-2001-08-16  David Gravereaux <davygrvy@pobox.com>
-
-	* tools/tcl.wse.in:
-	* tools/tcl.hpj.in:
-	* win/tcl.hpj.in:  Removed -kb storage in CVS to ensure these text
-	files are checked-out in the translation mode CVS is in. Setting these
-	as binary as part of an effort to make sure they are always in CRLF,
-	no matter what the CVS translation, is bypassing how CVS works and is
-	confusing.
-
-	* tools/genStubs.tcl:  Removed LF-only output. Having to reconvert
-	back to CRLF before committing to CVS was giving me a headache. [Bug
-	451333]
-
-	* win/makefile.vc: replaced $(WINDIR) with $(include32) for the
-	.rc.res inference rule. winver.h wasn't getting included. [Bug 445630]
-
-2001-08-14  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclBasic.c: make the intial maxNestingDepth of an
-	interpreter be MAX_NESTING_DEPTH instead of a hardwired value. [Bug
-	232564]
-
-2001-08-13  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* tests/trace.test: Corrected test numbers. [Bug 449794]
-
-2001-08-12  Mo DeJong  <mdejong@redhat.com>
-
-	* unix/configure: Regen.
-	* unix/configure.in:
-	* unix/tcl.m4: Use GCC variable set by AC_PROG_CC instead of defining
-	our own using_gcc variable.
-
-2001-08-11  Vince Darley <vincentdarley@users.sourceforge.net>
-
-	Variety of small issues introduced by the vfs code fixed:
-	* generic/tclIOUtil.c: uninitialised read.
-	* generic/tclFCmd.c: possible memory leak in file delete with error
-	condition.
-
-2001-08-10  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclVar.c:
-	* tests/trace.test: Insure that [array] traces work correctly for
-	undefined variables. [Bug 449094]
-
-2001-08-09  Mo DeJong  <mdejong@redhat.com>
-
-	* unix/Makefile.in: Delete the unused getcwd.o target. [Bug 440942]
-
-2001-08-08  Don Porter <dgp@users.sourceforge.net>
-
-	* library/dde/pkgIndex.tcl:
-	* library/http/http.tcl:
-	* library/http/pkgIndex.tcl:
-	* library/msgcat/msgcat.tcl:
-	* library/msgcat/pkgIndex.tcl:
-	* library/opt/optparse.tcl:
-	* library/opt/pkgIndex.tcl:
-	* library/reg/pkgIndex.tcl:
-	* library/tcltest/tcltest.tcl:
-	* library/tcltest/pkgIndex.tcl: Added checks for package dependencies.
-	Bumped patchlevels of changed packages: http 2.3.2, msgcat 1.2.2,
-	opt 0.4.3, tcltest 2.0.1. [Patch 448931]
-
-	* README:
-	* generic/tcl.h:
-	* tools/tcl.wse.in:
-	* unix/configure:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/README.binary:
-	* win/configure:
-	* win/configure.in: Bumped up patchlevel to 8.4a4 to distinguish CVS
-	snapshots from the 8.4a3 release. This does not necessarily mean there
-	will be an 8.4a4 release. [Bug 448938]
-
-2001-08-06  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	8.4a3 RELEASE
-
-	* changes:
-	* README:
-	* mac/README:
-	* unix/README:
-	* win/README.binary: updated for 8.4a3 release
-
-	* generic/tclFileName.c (Tcl_FSSplitPath): update to Tcl style guide.
-
-	* generic/tclFCmd.c (FileCopyRename): fixed mem leak in introduction
-	of vfs code where a new Tcl_Obj wasn't freed.
-
-	* generic/tclCmdMZ.c (Tcl_RegexpObjCmd, Tcl_RegsubObjCmd): reordered
-	the retrieval of arguments to avoid shimmering bug when the pattern
-	and string referenced the same object.
-
-	* unix/configure: regenerated
-	* unixE/tcl.m4: added GNU (HURD) configuration target.
-	[Patch 442974] (brinkmann)
-
-	* win/README: made note of URL for Windows compilation notes
-
-	* win/tclWinThrd.c (TclpFinalizeMutex, TclpFinalizeCondition): added
-	DeleteCriticalSection calls for cleanup [Patch 419683]
-
-	* unix/tclUnixPipe.c (TclpCreateTempFile): fixed use of tmpnam,
-	which is dangerous. [Patch 442636] (lim)
-	The use of tmpnam in TclpTempFileName must still be changed.
-
-	* tests/http.test (http-4.14): fixed variable error return.
-	[Bug 424252]
-
-2001-08-03  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/configure: regenerated
-	* win/tcl.m4: fixed DLLSUFFIX definition to always be ${DBGX}.dll.
-	This is necessary for TEA compliant builds that build shared against a
-	static-built Tcl.
-	* win/Makefile.in ($(TCLSH)): added $(TCL_STUB_LIB_FILE) to build
-	target, otherwise it wouldn't get generated in a static build.
-
-2001-08-06  Andreas Kupries <andreas_kupries@users.sourceforge.net>
-
-	* generic/tclIOCmd.c (Tcl_GetsObjCmd): Applied patch from [Bug 442665]
-	to fix the bug reported by it. The function can corrupt a freed object
-	if it is called with objc == 3. This is because it retrieves resultPtr
-	and does not increment its reference count, but then calls
-	Tcl_ObjSetVar2, which causes the retrieved resultPtr object to be
-	released.
-
-2001-08-06  Don Porter <dgp@users.sourceforge.net>
-
-	* doc/tclsh.1: Added note that the tclsh program is frequently
-	installed with the Tcl version numer as part of the name. [Patch
-	402725]
-
-	* generic/tclPkg.c:
-	* tests/pkg.test:  [package forget] now forgets all of the package
-	arguments it receives, not stopping when a package is not found. [Bug
-	415273]
-
-2001-08-02  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclIOUtil.c (Tcl_FSMatchInDirectory): corrected
-	uninitialized value.
-
-2001-08-02  Mo DeJong  <mdejong@redhat.com>
-
-	* generic/tclPlatDecls.h:
-	* win/tclWinPort.h: Revert <tchar.h> related changes made to improve
-	Cygwin support on 2001-07-18. This change ended up breaking the VC++
-	build because of conflicts between Windows APIs and internal Tk APIs.
-
-2001-08-01  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/tclUnixFCmd.c: minor casts to eliminate warnings. (lim)
-	[Patch 440218]
-
-	* tests/parseOld.test: changed some tests that required testwordend to
-	exist to skip in a proper tcltest manner. [Bug 442663]
-
-	* library/http/http.tcl (http::mapReply): the regsub'ing of \n and \t
-	to escape them was unnecessary.
-
-2001-07-31  Vince Darley <vincentdarley@users.sourceforge.net>
-
-	Changes from TIP#17 "Redo Tcl's filesystem"
-	The following files were impacted:
-	* doc/Access.3:
-	* doc/FileSystem.3:
-	* doc/OpenFileChnl.3:
-	* doc/file.n:
-	* doc/glob.n:
-	* generic/tcl.decls:
-	* generic/tcl.h:
-	* generic/tclCmdAH.c:
-	* generic/tclCmdIL.c:
-	* generic/tclCmdMZ.c:
-	* generic/tclDate.c:
-	* generic/tclDecls.h:
-	* generic/tclEncoding.c:
-	* generic/tclFCmd.c:
-	* generic/tclFileName.c:
-	* generic/tclGetDate.y:
-	* generic/tclIO.c:
-	* generic/tclIOCmd.c:
-	* generic/tclIOUtil.c:
-	* generic/tclInt.decls:
-	* generic/tclInt.h:
-	* generic/tclIntDecls.h:
-	* generic/tclLoad.c:
-	* generic/tclStubInit.c:
-	* generic/tclTest.c:
-	* generic/tclUtil.c:
-	* library/init.tcl:
-	* mac/tclMacFCmd.c:
-	* mac/tclMacFile.c:
-	* mac/tclMacInit.c:
-	* mac/tclMacPort.h:
-	* mac/tclMacResource.c:
-	* mac/tclMacTime.c:
-	* tests/cmdAH.test:
-	* tests/event.test:
-	* tests/fCmd.test:
-	* tests/fileName.test:
-	* tests/io.test:
-	* tests/ioCmd.test:
-	* tests/proc-old.test:
-	* tests/registry.test:
-	* tests/unixFCmd.test:
-	* tests/winDde.test:
-	* tests/winFCmd.test:
-	* unix/mkLinks:
-	* unix/tclUnixFCmd.c:
-	* unix/tclUnixFile.c:
-	* unix/tclUnixInit.c:
-	* unix/tclUnixPipe.c:
-	* win/tclWinFCmd.c:
-	* win/tclWinFile.c:
-	* win/tclWinInit.c:
-	* win/tclWinPipe.c:
-
-2001-07-24  Mo DeJong  <mdejong@redhat.com>
-
-	* win/tclWinThrd.c (Tcl_CreateThread): Close Windows HANDLE returned
-	by _beginthreadex. The MS documentation states that this handle is not
-	closed by a later call to _endthreadex.
-
-2001-07-21  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/pkgMkindex.n:
-	* library/package.tcl:  Corrected documentation and usage message of
-	[pkg_mkIndex].
-
-2001-07-18  Mo DeJong  <mdejong@redhat.com>
-
-	* generic/tclPlatDecls.h: Define TCHAR by including windows.h instead
-	of tchar.h since Cygwin does not support the tchar.h header. Include
-	CHECK_UNICODE_CALLS logic from tclWinPort.h.
-	* win/tclWinPort.h: Remove CHECK_UNICODE_CALLS logic. Remove include
-	of windows.h since this now done it tclPlatDecls.h.
-	* win/tclWinReg.c: Remove duplicate include of windows.h.
-
-2001-07-18  Andreas Kupries <andreas_kupries@users.sourceforge.net>
-
-	* generic/tclIO.c: Aftermath to [Bug 427196]. Squash empty buffers if
-	they are smaller than the requested buffersize, to prevent reusage of
-	old buffers and to honor changes in the requested buffersize made by
-	the user.
-
-2001-07-17  Mo DeJong  <mdejong@redhat.com>
-
-	* win/tclWinFile.c (TclpReadlink): Add Cygwin specific definition for
-	the TclpReadlink function. This method implements reading of symbolic
-	links when build with Cygwin.
-
-2001-07-17  Mo DeJong  <mdejong@redhat.com>
-
-	* win/tclWinPort.h: Add Cygwin specific defines for environ and
-	timezone variables.
-
-2001-07-17  Andreas Kupries <andreas_kupries@users.sourceforge.net>
-
-	* generic/tclIO.c (GetInput): Fixed [Bug 427196]. Memory was
-	overwritten because a buffer was used after a change of the requested
-	buffersize together with that requested buffersize and not its actual
-	size, which was smaller. Note that the continous reuse of the smaller
-	buffer negatively impacts performance. The system never allocates a
-	buffer with the newly requested bigger buffersize.
-
-2001-07-16  Mo DeJong  <mdejong@redhat.com>
-
-	* generic/tcl.h: Define __WIN32__ when __CYGWIN__ or __MINGW32__ is
-	defined.
-	* generic/tclAlloc.c: Define caddr_t when compiling with VC++ or
-	mingw. This type is already defined when compiling with Cygwin.
-
-2001-07-16  Mo DeJong  <mdejong@redhat.com>
-
-	* win/tclWinConsole.c:
-	* win/tclWinPipe.c:
-	* win/tclWinPort.h:
-	* win/tclWinSerial.c:
-	* win/tclWinThrd.c:
-	Remove unnecessary #includes of dos.h, direct.h, and tchar.h. This
-	will help the Cygwin porting effort since these headers do not exist
-	under Cygwin.
-
-2001-07-16  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/tclWinPipe.c (PipeClose2Proc): constrained the mutex lock to
-	just the TerminateThread call and waiting for termination. (jsmith)
-
-	* generic/tclCmdMZ.c: Removed extra copy of the SCAN_* macros
-	#defined in generic/tclScan.c. [Bug 441230] (porter)
-
-2001-07-12  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/unixInit.test (unixInit-2.8): Added extra constraint,
-	notInstalledInTmp, to stop this test from damaging installations in
-	/tmp; not much fun to have to reinstall the Tcl library every time you
-	run the test suite!
-
-	* tests/subst.test (subst-10.*): Updated tests to check new behaviour
-	for 'break' in command substitutions.
-	(subst-1.2,subst-7.1): Error messages changed.
-	* doc/SubstObj.3: New file, to document Tcl_SubstObj.
-	* doc/subst.n: Improved and updated documentation for 'subst' to help
-	support the changed behaviour.
-	* generic/tcl.decls (generic-437): Declaration for Tcl_SubstObj
-	* generic/tcl.h (TCL_SUBST_*): Added flags for Tcl_SubstObj.
-	* generic/tclCmdMZ.c (Tcl_SubstObj,Tcl_SubstObjCmd): Divided into two
-	parts to allow people to access the innards of 'subst' and changed the
-	behaviour when command substitutions do a 'break' to be different from
-	'continue'. Also now works with objects, which allows for some nifty
-	optimisations with variable substitutions and a slight improvement
-	with command substitutions. [TIP#36]
-
-2001-07-10  Mo DeJong  <mdejong@redhat.com>
-
-	* unix/Makefile.in: Add AR variable for use in STLIB_LD.
-	* unix/configure: Regen.
-	* unix/configure.in: Use STLIB_LD when defining MAKE_LIB and
-	MAKE_STUB_LIB. Subst RANLIB and AR.
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): Add doc comment about STLIB_LD
-	command. Check ${AR} env var when setting STLIB_LD and delay
-	evaluation until make time.
-	* win/configure: Regen.
-	* win/tcl.m4 (SC_CONFIG_CFLAGS): Delay evaluation of ${AR} in STLIB_LD
-	and add flags to better match the Unix implementation. Don't bother
-	defining AR when using VC++ since it is not used.
-
-2001-07-06  Mo DeJong  <mdejong@redhat.com>
-
-	* win/configure: Regen.
-	* win/tcl.m4 (SC_CONFIG_CFLAGS): Pass -e _WinMain@16 in addition to
-	the -mwindows flag to work around a problem with ld when it
-	incorrectly use main() as the executable entry point when both
-	WinMain() and main() are available.
-
-2001-07-06  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/cmdAH.test: Added leading zero to file modes to work around
-	fault in HPUX strtol() which ignores the base parameter. [Bug 438808]
-
-2001-07-05  Mo DeJong  <mdejong@redhat.com>
-
-	* win/Makefile.in: Subst DEPARG directly instead of relying on a
-	variable. This will make Cygwin builds faster since an extra exec will
-	be avoided.
-	* win/configure: Regen.
-	* win/configure.in: Subst DEPARG.
-	* win/tcl.m4 (SC_CONFIG_CFLAGS): Move AC_MSG_CHECKING after the
-	AC_CHECK_PROG so that status messages do not get mixed together. Set
-	DEPARG based on the results of the cygpath check so that we avoid
-	using an extra exec when it is not needed. Use ac_cv_cygwin status
-	flag instead of looking at the output of gcc -v, which works in the
-	case where -mno-cygwin is set in the CFLAGS.
-
-2001-07-04  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* README:
-	* mac/README:
-	* unix/README:
-	* win/README:
-	* win/README.binary: updated READMEs with purls
-
-2001-07-03  Mo DeJong  <mdejong@redhat.com>
-
-	* win/Makefile.in: Remove PATHTYPE variable.
-	* win/configure: Regen.
-	* win/configure.in: Don't subst PATHTYPE.
-	* win/tcl.m4 (SC_CONFIG_CFLAGS): Remove PATHTYPE variable. Set CYGPATH
-	to "cygpath -w" if the cygpath executable is found on the path. This
-	approach works for native Cygwin builds and cross compiles.
-
-2001-07-03  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tests/var.test:
-	* generic/tclVar.c (Tcl_VariableObjCmd): added patch to check for
-	number of args. [Patch 426038]
-
-	* generic/tclVar.c (Tcl_GetVar2Ex): added ability to recognize
-	TCL_TRACE_READS flags to cause creation of part1 in TclLookupVar to
-	make sure newly created array will get read traces triggered
-	appropriately. This is called by Tcl_ObjGetVar2, Tcl_GetVar, and
-	Tcl_GetVar2.
-	(TclSetIndexedScalar, TclSetElementOfIndexedArray): added read trace
-	triggering for lappend case.
-	(Tcl_LappendObjCmd): pass TCL_TRACE_READS to Tcl_ObjGetVar2 to trigger
-	possible read traces for new arrays.
-
-	* generic/tclExecute.c (TclExecuteByteCode): added TCL_TRACE_READS
-	flag to INST_LAPPEND(_ARRAY)_STK case to trigger read traces for newly
-	created arrays. Removed unnecessary #ifdef for TCL_COMPILE_DEBUG in
-	INST_LOAD_SCALAR1 case.
-
-	* tests/append.test:
-	* tests/appendComp.test: added tests for read trace triggering for
-	append and lappend.
-
-2001-07-03  Mo DeJong  <mdejong@redhat.com>
-
-	* tests/clock.test (clock-2.5): Adjust test so that it passes when the
-	time slice is 60 msecs, now passes under Windows 98.
-
-2001-07-03  Mo DeJong  <mdejong@redhat.com>
-
-	* win/tcl.m4 (SC_CONFIG_CFLAGS): Don't pass the v flag to ${AR} when
-	using gcc, verbose output is not needed.
-
-2001-07-03  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/unixInit.test (unixInit-2.8):  Changed test back to using
-	installation layout, adding comments explaining why the test writes to
-	the directories it does, and checks to avoid destroying other files in
-	/tmp.
-
-2001-07-03  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/unixInit.test (unixInit-1.2): Fixed faults reported in
-	[Bug 438070] - well, at least enough to work on Solaris - and added
-	comments that should make what is going on in the test clearer.
-
-2001-07-02  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tests/util.test: added util-4.6
-	* generic/tclUtil.c (Tcl_ConcatObj): Corrected walking backwards over
-	utf-8 chars. [Bug 227512]
-
-2001-07-02  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/unixInit.test (unixInit-2.8):  Corrected test for all absolute
-	pathnames in library path when executable is installed near root
-	directory to use correct development directory layout. [Bug 438014]
-
-	* tests/unixInit.test (unixInit-2.9):
-	* unix/tclUnixInit.c (TclpInitLibraryPath):
-	* win/tclWinInit.c (TclpInitLibraryPath):  Corrected buggy
-	construction of search path entries relative to executable. Added test
-	for bad construction. [Bug 438014]
-
-2001-06-28  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclNamesp.c: Correction to faulty patch from [Bug 231259]
-
-2001-06-28  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/unixInit.test (unixInit-1.2): Modified so as not to require a
-	local echo service, which fails on many systems which have that turned
-	off for security reasons...
-
-2001-06-27  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclInt.h:
-	* generic/tclObj.c:
-	* unix/Makefile.in: added a -DPURIFY mode that makes Tcl_Obj's
-	allocated and free singularly (instead of in alloc in blocks and never
-	free) to allow checkers like Purify to operate better.
-
-	* library/encoding/koi8-u.enc: added koi8-u (Ukranian variant)
-	encoding.
-
-	* tests/subst.test:
-	* generic/tclUtf.c (Tcl_UtfBackslash): Corrected backslash handling of
-	multibyte utf-8 chars. [Bug 217987]
-
-	* generic/tclCmdIL.c (InfoProcsCmd): fixed potential mem leak in info
-	procs that created objects without using them.
-
-	* generic/tclCompCmds.c (TclCompileStringCmd): fixed mem leak when
-	string command failed to parse the subcommand.
-
-	* doc/interp.n:
-	* doc/unknown.n: updated notes about what is in a safe interp. [Bug
-	218605]
-
-2001-06-27  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/event.test (event-11.5): Removed hard-coded port number which
-	could fail on some systems. [Bug 436727]
-
-2001-06-26  Mo DeJong  <mdejong@redhat.com>
-
-	* unix/Makefile.in:
-	* win/Makefile.in: Add `make shell` target. This target will set the
-	proper env vars before invoking tclsh from the build directory.
-
-2001-06-26  Mo DeJong  <mdejong@redhat.com>
-
-	* win/Makefile.in: Use : to separate VPATH entries. This works for
-	both Cygwin builds and cross builds, the VPSEP variable is simply
-	unneeded complexity.
-	* win/configure: Regen.
-	* win/configure.in: Don't subst VPSEP.
-	* win/tcl.m4 (SC_CONFIG_CFLAGS): Remove VPSEP variable.
-
-2001-06-26  Mo DeJong  <mdejong@redhat.com>
-
-	* unix/configure: Regen.
-	* unix/configure.in: Fix last checkin by removing export since that
-	only works in bash.
-	* win/configure: Regen.
-	* win/configure.in: Ditto.
-
-2001-06-26  Mo DeJong  <mdejong@redhat.com>
-
-	* unix/configure: Regen.
-	* unix/configure.in: Set CFLAGS to "" if the user did not set CFLAGS
-	in the env. This keeps AC_PROG_CC from adding "-g -O2" to the CFLAGS
-	by default.
-	* win/configure: Regen.
-	* win/configure.in: Ditto.
-
-2001-06-25  Mo DeJong  <mdejong@redhat.com>
-
-	* win/configure: Regen.
-	* win/configure.in: Use RC_DEFINE flag from tcl.m4.
-	* win/tcl.m4 (SC_CONFIG_CFLAGS): Set RC_DEFINE flag based on the
-	compiler in use.
-
-2001-06-25  Mo DeJong  <mdejong@redhat.com>
-
-	* win/tcl.m4 (SC_CONFIG_CFLAGS): Link to the imm32 library when
-	building with mingw gcc.
-
-2001-06-25  Mo DeJong  <mdejong@redhat.com>
-
-	* win/configure: Regen.
-	* win/tcl.m4 (SC_CONFIG_CFLAGS): When building with gcc, don't attempt
-	to link with LD or support dllwrap. Simply require a recent version of
-	Cygwin gcc or Mingw gcc that supports -shared. When linking, use gcc
-	instead of ld since gcc automatically includes libs like -lmsvcrt.
-
-2001-06-22  Mo DeJong  <mdejong@redhat.com>
-
-	* win/configure: Regen.
-	* win/configure.in: Add resource compiler fix from 8.3.3 to fix
-	compiling with mingw.
-
-2001-06-22  Mo DeJong  <mdejong@redhat.com>
-
-	* win/configure: Regen.
-	* win/tcl.m4: Fix silly typo in last checkin.
-
-2001-06-22  Mo DeJong  <mdejong@redhat.com>
-
-	* unix/Makefile.in: Set CFLAGS to @CFLAGS@ and @CFLAGS_DEFAULT@. Set
-	LDFLAGS to @LDFLAGS@ and @LDFLAGS_DEFAULT@. Add LDFLAGS_DEBUG and
-	LDFLAGS_OPTIMIZE to match the way CFLAGS_DEFAULT works. This will
-	support user set CFLAGS or LDFLAGS at configure time.
-	* unix/configure: Regen.
-	* unix/configure.in: Don't set CFLAGS to CFLAGS_DEFAULT, instead
-	subst CFLAGS_DEFAULT into the Makefile. Add AC_SUBST for
-	CFLAGS_DEFAULT, LDFLAGS_DEFAULT, LDFLAGS_DEBUG, and LDFLAGS_OPTIMIZE.
-	* unix/tcl.m4 (SC_ENABLE_SYMBOLS): Modify LDFLAGS_DEFAULT so that it
-	uses a Makefile variable just like CFLAGS_DEFAULT.
-	* win/Makefile.in: Set CFLAGS to @CFLAGS@ and @CFLAGS_DEFAULT@. Set
-	LDFLAGS to @LDFLAGS@ and @LDFLAGS_DEFAULT@. This will support user set
-	CFLAGS or LDFLAGS at configure time.
-	* win/configure: Regen.
-	* win/configure.in: Don't set CFLAGS or LDFLAGS, instead subst
-	CFLAGS_DEFAULT and LDFLAGS_DEFAULT into the Makefile.
-	* win/tcl.m4 (SC_ENABLE_SYMBOLS): Modify LDFLAGS_DEFAULT so that it
-	uses a Makefile variable just like CFLAGS_DEFAULT.
-
-2001-06-22  Mo DeJong  <mdejong@redhat.com>
-
-	* win/configure:
-	* win/tcl.m4 (SC_CONFIG_CFLAGS): Don't set LDFLAGS_DEBUG to -g or
-	LDFLAGS_OPTIMIZE to -O when compiling with gcc. These flags are not
-	needed and can cause problems with the Cygwin version of ld.
-
-2001-06-18  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/unixInit.test (unixInit-1.2,unixInit-2.8): Added test for code
-	described below, and fixed a couple of errors that caused problems
-	during testing; the code to determine the installedTcl constraint was
-	wrong, and test unixInit-2.8 assumed that /tmp/lib was free for use
-	and could be deleted, which clashed nastily with my installation and
-	made other tests fail unnecessarily!
-
-	* unix/tclUnixChan.c (TtyInit,TclpOpenFileChannel,
-	(Tcl_MakeFileChannel,TclpGetDefaultStdChannel): Alterations so that
-	the standard channels - stdin, stdout and stderr - have the correct
-	type and fconfigure options. This required making the initialisation
-	of serial lines a little more sophisticated to make the console behave
-	correctly in interactive mode... [Bug 219137 and duplicates]
-
-2001-06-16  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclInt.decls:
-	* generic/tclInt.h:
-	* generic/tclPanic.c (Tcl_PanicVA):
-	* mac/tclMacAppInit.c (main):
-	* mac/tclMacPanic.c (TclpPanic):
-	* unix/tclUnixPort.h:
-	* win/tclWinPort.h: Replaced TclMacSetPanic with TclpPanic for setting
-	a platform-specific panic handler. TclpPanic is NULL on Unix and
-	Windows. Fixes broken wish on Mac due to earlier patches. [Patch
-	415648]
-
-	* generic/tclIntPlatDecls.h:
-	* generic/tclStubInit.c: `make gentubs` after above changes.
-
-2001-06-13  Don Porter  <dgp@users.sourceforge.net>
-
-	* mac/tclMacAppInit.c (main, Macintosh_Init):
-	* mac/tclMacBOAAppInit.c (main):
-	* mac/tclMacPanic.c: Applied patches from Dan Steffen correcting
-	problems on the Macintosh in the 2001-06-08 changes.
-
-2001-06-12  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/regexp.test (regexp-18.12):
-	* generic/tclCmdMZ.c (Tcl_RegexpObjCmd): Fixed so that submatches
-	that do not match always have index pair {-1 -1} [Bug 219232]
-
-2001-06-08  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tcl.h:
-	* generic/tcl.decls:
-	* generic/tclPanic.c: Added CONST to Tcl_*Panic* public interfaces.
-	[Patch 415648, TIP 27]
-
-	* generic/tclInt.decls:
-	* mac/tclMacAppInit.c (main):
-	* mac/tclMacBOAAppInit.c (main):
-	* mac/tclMacPanic.c: Modified special Mac implementations of
-	Tcl_*Panic* to be exact copies of the generic implementations. Added
-	TclMacSetPanic. The generic implementations should be used directly,
-	rather than copies, but that requires further changes by someone
-	familiar with the Mac build systems. [Patch 415648]
-
-	* generic/tclDecls.h:
-	* generic/tclIntPlatDecls.h:
-	* generic/tclStubInit.c: `make gentubs` after above changes.
-
-	* doc/Panic.3:
-	* unix/mkLinks:  New file documenting Tcl_*Panic* public interfaces,
-	followed by `make mklinks`. [Patch 415648, Bug 219170, Bug 414936]
-
-2001-06-03  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclUtil.c (Tcl_DStringAppendElement): patch to save an
-	extra strlen call. [Bug 428572]
-
-2001-05-30  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclExecute.c (TclExecuteByteCode): Added two casts to
-	INST_STR_CMP implementation to get rid of a couple warnings from the
-	SUNWspro C compiler.
-
-	* generic/tclBasic.c (Tcl_GetMathFuncInfo,Tcl_ListMathFuncs):
-	* generic/tclCmdIL.c (Tcl_InfoObjCmd,InfoFunctionsCmd):
-	* generic/tcl.decls (generic table, positions 435+436):
-	* tests/info.test:
-	* doc/CrtMathFnc.3:
-	* doc/info.n: Changes due to TIP #15 "Functions to List and Detail
-	Math Functions"
-
-2001-05-28  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* library/init.tcl (unknown): removed errant " in error message
-
-2001-05-27  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/regc_locale.c: updated character class range data for
-	Unicode v3.1.0 compliance.
-	* generic/tclUniData.c: regenerated from Unicode v3.1.0 data file (new
-	as of 2001-05-16). This brings Tcl to current unicode compliance.
-
-	* tests/utf.test: added tests to check unicode 3 compliance
-
-	* unix/Makefile.in (tclUtf.o): added tclUniData.c dependency.
-
-	* tools/uniClass.tcl: added comments to output format and the script
-	for clarification.
-
-	* tools/uniParse.tcl: corrected filename output and GetDelta macro to
-	use 'info' as param (was 'infO')
-
-2001-05-26  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclVar.c (tclArraySearchType,SetArraySearchObj,
-	(ParseSearchId): Added code to speed up array searching by reducing
-	the amount of parsing needed for searchIds.
-
-	* generic/tclObj.c (TclInitObjSubsystem):
-	* generic/tclIndexObj.c (Tcl_GetIndexFromObjStruct):
-	* generic/tclNamesp.c (TclInitNamespaceSubsystem):
-	* generic/tclInt.h: Moved some Tcl_ObjType initialisation to
-	TclInitObjSubsystem to be with the bulk of the rest. [Patch 424851]
-	Committed by Miguel Sofer <mig@utdt.edu>
-
-2001-05-23  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tests/io.test: changed io-52.[9-11] to not be platform sensitive
-	with EOL translation.
-
-	* library/encoding/cp1250.enc:
-	* library/encoding/cp1251.enc:
-	* library/encoding/cp1252.enc:
-	* library/encoding/cp1253.enc:
-	* library/encoding/cp1254.enc:
-	* library/encoding/cp1255.enc:
-	* library/encoding/cp1256.enc:
-	* library/encoding/cp1257.enc:
-	* library/encoding/cp1258.enc:
-	* library/encoding/cp874.enc:
-	* library/encoding/iso8859-6.enc:
-	* library/encoding/iso8859-7.enc:
-	* library/encoding/iso8859-8.enc:
-	* library/encoding/iso8859-10.enc (new):
-	* library/encoding/iso8859-13.enc (new):
-	* library/encoding/iso8859-14.enc (new): updated encoding tables based
-	on http://www.unicode.org/Public/MAPPINGS/. (kuhn)
-
-2001-05-23  Mo DeJong  <mdejong@redhat.com>
-
-	* unix/tcl.m4 (SC_PATH_TCLCONFIG): Fix comments, and typo in cached
-	variable name.
-
-2001-05-23  Mo DeJong  <mdejong@redhat.com>
-
-	* unix/tcl.m4 (SC_LOAD_TKCONFIG): Remove use of undefined TCLCONFIG
-	variable and call AC_MSG_RESULT to print the checking result.
-	* win/tcl.m4: Ditto.
-
-2001-05-22  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclObj.c (TclAllocateFreeObjects): simplified
-	objSizePlusPadding to use sizeof(Tcl_Obj) (max) Corrected use of
-	tclObjsAlloced/Freed/Shared in TCL_MEM_DEBUG compile.
-
-2001-05-22  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c: removed Tcl_DuplicateObj in INST_DUP
-
-2001-05-21  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tests/tcltest.test (tcltest-19.1): fixed failing test that was
-	getting affected by Windows env handling of empty valued elements.
-
-	* unix/tcl.m4: added more common install directories in which to
-	search for *Config.sh. [Bug 419812]
-
-	* tests/cmdMZ.test (cmdMZ-1.4): added notLinux constraint to test to
-	prevent failure message on Linux due to OS caching bug.
-
-	* tests/httpd (httpdRespond): added response to timeout value in query
-	string.
-
-	* tests/http.test: removed unused notLinux constraint setting
-
-	* generic/tclRegexp.c (Tcl_RegExpExecObj): added use of
-	Tcl_GetUnicodeFromObj.
-
-2001-05-19  Andreas Kupries <andreas_kupries@users.sourceforge.net>
-
-	* Note that "tclbench" (see project "tcllib") was extended with
-	performance benchmarks for [fcopy] too.
-
-	* doc/fcopy.n: Updated to reflect the extended behaviour of 'fcopy'.
-
-	* tests/io.test: Added tests 'io-52.9', 'io-52.10' and 'io-52.11' to
-	test the handling of encodings by 'fcopy' / 'TclCopychannel'. [Bug
-	209210]
-
-	* generic/tclIO.c: Split of both 'Tcl_ReadChars' and 'Tcl_WriteChars'
-	into a public error checking and an internal working part. The public
-	functions now use the new internal ones. The new functions are
-	'DoReadChars' and 'DoWriteChars'. Extended 'CopyData' to use the new
-	functions 'DoXChars' when required by the encodings on the input and
-	output channels. [Bug 209210]
-
-2001-05-16  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* library/history.tcl (tcl::HistAdd): prevent empty calls from being
-	added to the history (arndt)
-
-	* tests/error.test: updated error-1.3 message to account for string
-	index being compiled at toplevel.
-	* tests/appendComp.test:
-	* tests/stringComp.test: new files for extended bytecode testing
-
-	* generic/tclBasic.c: added new CompileProc invocations to basic
-	command initialization.
-	* generic/tclCompCmds.c: added new compile commands for append,
-	lappend, lindex and llength. Refactored set and incr compile commands
-	to use new TclPushVarName function for handling the varname component
-	during compilation (also used by append and lappend). Changed string
-	compile command to compile toplevel code as well (when possible).
-	* generic/tclCompile.c: added new instruction enums
-	* generic/tclCompile.h: added debug info for new instructions
-	* generic/tclExecute.c (TclExecuteByteCode): moved elemPtr to toplevel
-	var (oft-used). Added definitions for new bytecode instructions
-	INST_LIST_INDEX, INST_LIST_LENGTH, INST_APPEND_SCALAR1,
-	INST_APPEND_SCALAR4, INST_APPEND_ARRAY1, INST_APPEND_ARRAY4,
-	INST_APPEND_ARRAY_STK, INST_APPEND_STK, INST_LAPPEND_SCALAR1,
-	INST_LAPPEND_SCALAR4, INST_LAPPEND_ARRAY1, INST_LAPPEND_ARRAY4,
-	INST_LAPPEND_ARRAY_STK, INST_LAPPEND_STK.
-	Refactored repititious code for reuse with INST_LOAD_STK (same as
-	INST_LOAD_SCALAR_STK), INST_STORE_STK (same as INST_STORE_SCALAR_STK).
-	Updated INST_STR_CMP with style of fix of 2001-04-06 Fellows
-	[Bug 219201] as that fix only affected the runtime eval'ed "string"
-	(string compare is normally byte-compiled now). We may want to back
-	these out for speed in the future, noting the problems with \x00
-	comparisons in the docs.
-	* generic/tclInt.h: declarations for new compile commands.
-	* generic/tclVar.c: change TclGetIndexedScalar,
-	TclGetElementOfIndexedArray, TclSetElementOfIndexedArray and
-	TclSetIndexedScalar to use flags. The Set functions now support
-	TCL_APPEND_ELEMENT and TCL_LIST_ELEMENT as well.
-	* generic/tclInt.decls:
-	* generic/tclIntDecls.h: minor signature changes for above.
-
-	* generic/tclCmdMZ.c: made use of new Tcl_GetUnicodeFromObj.
-
-2001-05-16  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/console.n: Deleted. Put it in the wrong source tree! D'oh!
-
-2001-05-15  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tcl.decls:
-	* generic/tclDecls.h:
-	* generic/tclStubInit.c:
-	* generic/tclStringObj.c (Tcl_GetUnicodeFromObj): new function to
-	parallel Tcl_GetStringFromObj (fix of an API oversight).
-
-	* unix/tclUnixPipe.c: updated pipeChannelType to TCL_CHANNEL_VERSION_2
-	type specification.
-
-	* tests/fileName.test: corrected tests not to fail on win when a
-	C:/test dir exists.
-
-	* generic/tclFileName.c (ExtractWinRoot): corrected ABR error
-
-2001-05-15  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* tests/lindex.test: added test for nested braces [Patch 423617]
-
-2001-05-15  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclInt.h:
-	* generic/tclNamesp.c: invalidate all bytecodes in a namespace if a
-	new command shadows a bytecoded command.
-	* tests/namespace.test:
-	Patched from [Bug 231259]
-
-2001-05-15  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/console.n: Created. It seems very odd to me that the console
-	implementation is part of the Tcl distribution and not part of Tk, but
-	given the location of the source, the documentation must obviously
-	match up...
-
-2001-05-14  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd):
-	* tests/string.test (string-4.14): Negative string indices should not
-	be added as offsets to the result of [string first] but instead be
-	treated as referring to the start of the string. [Bug 423581]
-
-2001-05-11  Mo DeJong  <mdejong@redhat.com>
-
-	* unix/Makefile.in: Add a LDFLAGS variable to the Makefile instead of
-	directly substing @LDFLAGS@.
-	* unix/configure: Regen.
-	* unix/tcl.m4: Fix CFLAGS_DEFAULT so that the name of a Makefile
-	variable is passed as @CFLAGS@.
-	* win/Makefile.in: Move the setting of CFLAGS higher up in the
-	Makefile.
-	* win/configure: Regen.
-	* win/configure.in: Use dnl to comment out macros so that they are not
-	accidently expanded.
-	* win/tcl.m4: Fix CFLAGS_DEFAULT so that the name of a Makefile
-	variable is passed as @CFLAGS@.
-
-2001-05-07  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c: insure different rand() seeds in different
-	threads. [Bug 416643]
-
-2001-05-03  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tests/tcltest.test: removed extraneous 'c' (doh!) [Bug: 414031]
-
-	* tools/tcltk-man2html.tcl: removed use of 'exec' for portability and
-	fixed up code.
-
-2001-05-03  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/library.n:
-	* library/init.tcl:
-	* tests/autoMkindex.t*: Modified [auto_import] to apply pattern
-	matching in the [namespace import] style. [Bug 420186]
-	***POTENTIAL INCOMPATIBILITY*** for any callers of [auto_import] from
-	outside Tcl that expect the pattern matching to be like that of
-	[string match].
-
-2001-05-03  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclParse.c:
-	* tests/namespace.test: Insure consistent behaviour of the [unknown]
-	command: when a command is unknown, it is always processed by
-	[::unknown], ignoring any namespace proc which happens to be called
-	"unknown" [Patch 421166, Bug 420507]
-
-2001-05-02  Don Porter  <dgp@users.sourceforge.net>
-
-	* tools/genStubs.tcl: Add a package require of Tcl 8 at the beginning
-	of the script so that the script will print a descriptive error
-	message when run in an old Tcl 7 shell.
-
-2001-04-27  Kevin Kenny	<kennykb@crd.ge.com>
-
-	* generic/tclInt.decls:
-	* generic/tclInt.h:
-	* generic/tclCmdIL.c:
-	* generic/tclProc.c:
-	* generic/tclVar.c: Added another collection of missing CONSTs related
-	to TclGetNamespaceForQualName.
-	* generic/tclIntDecls.h: Regenerated.
-
-2001-04-25  Mo DeJong  <mdejong@redhat.com>
-
-	* unix/configure: Regen.
-	* unix/tcl.m4: Subst TCL_THREADS into tclConfig.sh.
-	* unix/tclConfig.sh.in: Add TCL_THREADS variable.
-	* win/configure: Regen.
-	* win/tcl.m4: Subst TCL_THREADS into tclConfig.sh.
-	* win/tclConfig.sh.in: Add TCL_THREADS variable.
-
-2001-04-25  Mo DeJong  <mdejong@redhat.com>
-
-	* unix/configure: Regen.
-	* unix/configure.in: Use $@ in MAKE_LIB and MAKE_STUB_LIB commands
-	instead of using a delayed subst variable. Replace instances of
-	STUB_LIB_FILE with TCL_STUB_LIB_FILE.
-
-2001-04-25  Mo DeJong  <mdejong@redhat.com>
-
-	* unix/Makefile.in: Use TCL_STUB_LIB_FILE instead of STUB_LIB_FILE.
-	* unix/configure: Regen.
-	* unix/configure.in: Don't subst STUB_LIB_FILE, use TCL_STUB_LIB_FILE
-	instead.
-
-2001-04-25  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tools/encoding/iso8859-15.txt:
-	* library/encoding/iso8859-15.enc: Oops! Got the full encoding wrong.
-	Should be fixed now...
-
-	* tools/encoding/iso8859-15.txt:
-	* library/encoding/iso8859-15.enc:
-	* tools/tcl.wse.in: Added ISO 8859-15 (a.k.a. Latin-1 + Euro currency
-	symbol) support.
-
-	* generic/tclNamesp.c:
-	* generic/tclBasic.c (TclRenameCommand): Missing CONST from several
-	declarations relating to use of TclGetNamespaceForQualName
-
-2001-04-24  Kevin B. Kenny    <kennykb@acm.org>
-
-	* doc/AssocData.3:
-	* doc/CrtCommand.3:
-	* doc/CrtMathFnc.3:
-	* doc/CrtObjCmd.3:
-	* doc/ExprLong.3:
-	* generic/tclBasic.c:
-	* generic/tclCmdMZ.c:
-	* doc/CrtSlave.3:
-	* generic/tclNamesp.c:
-	* generic/tcl.decls:
-	* generic/tcl.h:
-	* generic/tclInt.decls:
-	* generic/tclInt.h: (TIP #27) Another round of CONST changes, this
-	time adding CONST to the API's exported from tclBasic.c. [Patch
-	415179]
-	***POTENTIAL INCOMPATIBILITY*** from 8.4a2, in which Vince Darley's
-	changes to command tracing were added. A const has been added to the
-	type signature of one of the parameters to Tcl_CommandTraceProc.
-
-2001-04-10  Kevin B. Kenny    <kennykb@acm.org>
-
-	* unix/tclUnixTime.c: Altered code to use memcpy instead of
-	structure assigments in an effort to achieve better K&R
-	compatibility.
-
-2001-04-10  Kevin B. Kenny    <kennykb@acm.org>
-
-	* unix/tclUnixTime.c: Fixed silly typo in calls to 'gmtime' and
-	'localtime' that broke the Linux build.
-
-2001-04-09  Kevin B. Kenny    <kennykb@acm.org>
-
-	* unix/tclLoadShl.c: Added DYNAMIC_PATH to the load flags so that the
-	SHLIB_PATH will be searched for other libraries. [Bug 219140]
-
-2001-04-09  Kevin B. Kenny    <kennykb@acm.org>
-
-	* unix/tcl.m4: Added _REENTRANT to Solaris build so that thread safe
-	library routines are included.
-	* unix/configure: Re-ran 'autoconf' with changed tcl.m4
-	* tclUnixTime.c: Modified for thread safety of 'gmtime' and
-	'localtime' system calls. [Bugs 219136 and 232558]
-
-2001-04-09  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/expr.test (expr-21.*): Tests to check below fix.
-	* generic/tclParseExpr.c (GetLexeme): Now recognises the
-	non-numeric boolean literals for what they are. It no longer makes
-	sense for anyone to create functions with the same name as one of
-	them, but this was true in 7.* as well [Bug 217777; finally!]
-
-2001-04-07  Miguel Sofer <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c: Avoid panic when there are extra items in the
-	tcl stack. [Bug 406709, Patch 414470]
-	* tests/foreach.test: test to exercise the patch
-
-2001-04-07  Miguel Sofer <msofer@users.sourceforge.net>
-
-	* doc/namespace.n: document correct functionality
-	* generic/tclNamesp.c: corrected behaviour of [namespace code]
-	[Bug 219385, Patch 403530]
-	* library/init.tcl:
-	* tests/namespace-old.test: test correct functionality
-	* tests/namespace.test: test correct functionality
-
-2001-04-07  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* unix/Makefile.in (checkdoc): New target, checking the definitions as
-	found in the compiled library against the manpages to find
-	undocumented public functionality.
-
-	* unix/mkLinks: Updated to include the new manpage.
-
-	* doc/UniCharIsAlpha.3: New manpage documenting the Unicode
-	character classification APIs. [Bug 218720]
-
-2001-04-07  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* unix/mkLinks: Updated to incorporate the changes below.
-
-	* doc/StringObj.3: Added 'Tcl_AttemptSetObjLength' to the NAME
-	section. [Bug 414435]
-
-	* doc/Alloc.3: Added both 'Tcl_AttemptAlloc' and 'Tcl_AttemptRealloc'
-	to the NAME section. [Bug 414435]
-
-	* doc/Utf.3: Added both 'Tcl_UniCharCaseMatch' and
-	'Tcl_UniCharNcasecmp' to the NAME section. [Bug 414435]
-
-2001-04-06  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/init.tcl:
-	* tests/init.test:  Modified processing of $::errorInfo by [unknown]
-	when the auto-loaded command throws an error to better cover the
-	tracks of auto-loading. [Bug 219280, Patch 403551]
-
-2001-04-06  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/read.n: Added section on "USE WITH SERIAL PORTS" to resolve
-	[Bug 219402]
-
-	* tests/string.test (string-2.30): Test for this case
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd, STR_COMPARE branch): Fixed
-	problem caused by Utf-rep of \x00 being more than Utf-rep of \x01
-	fooling memcmp by forcing everything through Utf-based comparisons.
-	Added optimizations for case where objects have a string/unicode-rep
-	or a bytearray-rep (i.e. where we can perform comparisons on
-	fixed-size units). [Bug 219201]
-	* generic/tclUtf.c (Tcl_UtfNcmp): Corrected seriously erroneous
-	comment.
-
-2001-04-05  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* doc/Macintosh.3: Removed duplicates from .SH line. [Bug 413983]
-
-2001-04-05  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd): Fixed so will compile
-	with K&R compilers. [Patch 413844, Bug 413847]
-
-2001-04-04  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclMain.c:  Patch from Kevin Kenny to restore support of
-	pre-ANSI compilers. [Bug 413846, Patch 413842]
-
-2001-04-04  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* unix/mkLinks: Updated to contain the new manpage.
-
-	* doc/Environment.3: New manpage, describes Tcl_PutEnv. [Bug 219171]
-
-	* doc/Macintosh.3: New manpage describing the macintosh specific parts
-	of the public API. [Bug 219169]
-
-2001-04-04  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/configure:
-	* unix/tcl.m4: extended test of termios vs. termio vs. sgtty to
-	better detect result on Linux and when certain configure
-	redirections are being used. [Patch 402923; Bug 227412, 219194] (max)
-
-2001-04-04  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* generic/tclTest.c:
-	* tests/io.tests: TIP #10 followup correcting a problem with the
-	original patch because of the lack of 'testthread id' for a
-	non-threaded compilation.
-
-2001-04-04  Kevin Kenny <kennykb@acm.org>
-
-	* doc/ByteArrObj.3:
-	* doc/DumpActiveMemory.3:
-	* doc/InitStubs.3:
-	* doc/PkgRequire.3:
-	* doc/StringObj.3:
-	* generic/tcl.decls:
-	* generic/tcl.h:
-	* generic/tclBinary.c:
-	* generic/tclCkalloc.c:
-	* generic/tclDecls.h:
-	* generic/tclListObj.c:
-	* generic/tclObj.c:
-	* generic/tclPkg.c:
-	* generic/tclStringObj.c:
-	* generic/tclStubLib.c: (TIP#27) Changed a number of Tcl API's to
-	accept "CONST char*" in place of simple "char*". (kennykb) [Patch
-	404026]
-
-2001-04-04  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclListObj.c (Tcl_SetListObj): set objPtr->length = 0 in
-	empty object case to maintain sanctity of Tcl_Obj bytes/length
-	pairing. [Patch 405998] (porter)
-
-2001-04-03  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* unix/mkLinks: Added 'Signal.3', 'Tcl_WaitPid'.
-
-	* doc/DetachPids.3: Added description of 'Tcl_WaitPid' [Bug 219173].
-
-	* doc/Signal.3: New man page describing the public API procedures
-	'Tcl_SignalId' and 'Tcl_SignalMsg'. [Bug 219172]
-
-2001-04-02  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* README:
-	* win/README:
-	* win/README.binary: further notes corrections.
-
-	* win/configure:
-	* win/tcl.m4 (SHLIB_LD):  added -incremental:no. [Bug 219381]
-
-2001-04-01  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* README:
-	* mac/README:
-	* win/README:
-	* win/README.binary:
-	* unix/README: updated patchlevel information to 8.4a3 and updated
-	links and notes.
-
-	* generic/tcl.h:
-	* tools/tcl.wse.in:
-	* win/configure.in (VER):
-	* win/configure:
-	* unix/configure:
-	* unix/configure.in (VER):
-	* unix/tcl.spec: updated patchlevel information to 8.4a3
-
-2001-03-30  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclCkalloc.c (TclFinalizeMemorySubsystem): set curTagPtr
-	to NULL to allow for reuse.
-	* generic/tclEvent.c (Tcl_Finalize): moved the tsdPtr initialization
-	inside the subsystemsInitialized check to prevent it potentially
-	getting called twice during finalization.
-	[Patch 403532, Bug 219391] (wu)
-
-	* generic/tclThreadTest.c (Tcl_ThreadObjCmd): cast fixes
-	* generic/tclTest.c (TestChannelCmd): added cast to mollify Windows
-	debug build.
-
-	* win/tclWinSock.c (SocketEventProc): Fixed race condition in
-	readability of socket on Windows. [Patch 410674, Bug 219205, 219333]
-
-	* win/tcl.m4: added imm32.lib to LIBS_GUI for Tk IME support.
-
-	* win/Makefile.in (install-libraries): removed extra \s that broke
-	the target.
-	(install-doc): improved install-* targets to use their base build
-	dependency.
-
-2001-03-30  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* All of the changes below belong to TIP #10 [Tcl I/O Enhancement:
-	Thread-Aware Channels]. See also [Patch 403358] at SF.
-
-	* generic/tclIO.h (struct ChannelState, line 236f): Extended the
-	structure with a new field of type 'Tcl_ThreadId' to hold the id of
-	the thread currently managing all channels with this state.
-
-	Note: This structure is shared by all channels in a stack of
-	transformations.
-
-	* generic/tclIO.c (Tcl_CreateChannel, lines 1058-1065): Modified to
-	store the Id of the current thread in the 'ChannelState' of the new
-	channel.
-
-	* generic/tclIO.c (Tcl_SpliceChannel, lines 2265-2270): Modified in
-	the same manner as 'Tcl_CreateChannel' as the channel will be managed
-	by the current thread afterward.
-
-	* generic/tclIO.c   (Tcl_GetChannelThread, lines 1478-1503):
-	* generic/tcl.decls (Tcl_GetChannelThread, lines 1504-1506): New API
-	function to retrieve the Id of the managing thread from a channel.
-	Implementation and declaration.
-
-	* generic/tclTest.c (TestChannelCmd, lines 4520-4532): Added
-	subcommand 'mthread' to query a channel about its managing thread.
-
-2001-03-29  Mo DeJong  <mdejong@redhat.com>
-
-	* tests/interp.test: Print out warning when testinterpdelete command
-	is not defined. Add tests that checks to make sure a child interp
-	inherits the parent's cwd.
-
-2001-03-29  Jeff Hobbs  <jeffh@gimlet.activestate.com>
-
-	* doc/tcltest.n: corrected incorrect macro usage.
-
-	* doc/lsort.n: corrected unbalanced nroff macros.
-
-	* unix/tclUnixPipe.c (TclpCreateTempFile): prevent potential race
-	condition and security leak in tmp filename creation.
-	[Patch 402924] (max)
-
-	* unix/configure:
-	* unix/tcl.m4: corrected IRIX-5.x config to not use -n32.
-	[Patch 403626] (english)
-
-	* unix/tclUnixThrd.c (Tcl_ConditionWait): fixed handling of timeout
-	for threads (corrects excessive CPU usage issue for Tk on Unix in
-	threaded Tcl environment). [Bug 411603] (ruppert)
-
-2001-03-29  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/lsort.n: Added some notes that clarify the behaviour of
-	[lsort] as well as a whole bunch of examples.  [Bug 219202]
-
-2001-03-27  Jeff Hobbs  <jeffh@gimlet.activestate.com>
-
-	* doc/Alloc.3: corrected docs to note that Tcl_Attempt* return char
-	*'s, not ints. [Bug 411388]
-
-	* tests/regexp.test (regexp-19.1):
-	* generic/tclCmdMZ.c (Tcl_RegsubObjCmd): fixed handling of nulls in
-	subspec value.
-
-2001-03-26  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclDecls.h (Tcl_InitCustomHashTable):  Correction to patch
-	from 2001-01-18;  tclDecls.h was not generated using 'make genstubs'.
-
-2001-03-26  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* win/tclWinInt.h (tclWinTCharEncoding): Removed as now a static
-	variable in win/tclWin32Dll.c instead.
-
-2001-03-23  Jeff Hobbs  <jeffh@activestate.com>
-
-	* generic/tclVar.c (Tcl_ArrayObjCmd): Corrected retrieval of resultPtr
-	to prevent possible corruption.
-
-	* generic/tclNamesp.c (Tcl_Import): Correctly freed a DString.
-	[Patch 403755] (lavana)
-
-2001-03-15  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/set-old.test (set-old-7.2): Changed error behaviour of
-	[unset] to agree with documentation, so must change test as well.
-
-2001-03-14  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/package.tcl (pkg_mkIndex):  Added patch from Vince Darley to
-	make [pkg_mkIndex -verbose] even more verbose. [Bug 219349, Patch
-	403529]
-
-2001-03-13  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/info.n: Improved documentation for [info hostname]. [Bug 403840]
-
-	* generic/tclVar.c (Tcl_UnsetObjCmd): Made command behave as
-	documented [issue remaining from Bug 405769]
-
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd): A missing {return TCL_OK;}
-	was causing memory corruption. [Bug 408002]
-
-	* generic/tclExecute.c (TclDeleteExecEnv, GrowEvaluationStack,
-	(TclExecuteByteCode): Added some casts to ClientData that are
-	apparently needed on some architectures.
-
-2001-03-12  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/string.test: Fixed some test numberings and added a test.
-	[Patch 403229]
-
-2001-03-06  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclVar.c (Tcl_UnsetObjCmd): Rewrote argument parser to avoid
-	a read off the end of the argument array that could occur when
-	executing something like [unset -nocomplain] was executed. Improved
-	the error message given when too few arguments are given (-nocomplain
-	should obviously be *before* --, not after it) and also modified the
-	test suite to take account of that and the documentation to use the
-	same improvement. [Bug 405769]
-
-2001-03-02  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclExecute.c (TclExecuteByteCode): Fixed bug that could pass
-	pointers to freed memory to command implementations, which most
-	obviously caused some weird behaviour with [info level], but could
-	have caused problems with user code and command traces too. [Bug
-	404865, Patch 405436]
-
-2001-02-23  msofer  <msofer@users.sourceforge.net>
-
-	* no changes; fixing up the missing comment in the previous one.
-	Sorry.
-
-2001-02-23  msofer  <msofer@ant.utdt>
-
-	* /cvsroot/tcl/tcl/tests/execute.test: added test for evaluation of an
-	expression in a variable; evals once by compiling, second time using
-	the previous compilation
-
-2001-02-18  Kevin B. Kenny  <kennykb@acm.org>
-
-	* doc/clock.n: Updated documentation to reflect the addition of
-	compat/strftime.c, including the correct formatting of ISO-8601:1988
-	fiscal week number (%V).
-
-2001-02-15  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclCmdMZ.c (Tcl_SplitObjCmd): Improved efficiency of
-	splitting strings into individual characters by adding hash so that
-	only one Tcl_Obj per character is created. Improves performance of
-	splitting of short strings and makes a huge difference to splitting of
-	long strings, such as is done in the mime package in tcllib. [Bug
-	131523]
-
-2001-01-31  Don Porter  <dgp@users.sourceforge.net>
-
-	* win/makefile.vc (install-libraries):  Corrected misdirected install
-	directory for the msgcat 1.2 package.
-
-2001-01-30  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclIO.c (CopyData): Moved code that updates the count of how
-	many bytes are left to copy. Corrects bug that when writing occurs in
-	the background, the copy loop could be escaped without updating the
-	count, causing CopyData() to try to copy more bytes than the toRead
-	value originally passed to TclCopyChannel(), leading to hangs and
-	misreporting of number of bytes copied. [Bug 118203, Patch 103432]
-
-2001-01-18  Andreas Kupries  <a.kupries@westend.com>
-
-	Everything below belongs together, it fixes [Bug 123153]
-
-	* generic/tcl.h (line 342): A bit more explanation about the default
-	value for TCL_PRESERVE_BINARY_COMPATABILITY.
-
-	* generic/tcl.h (line 1208): Define the macro 'Tcl_InitHashTable' only
-	when TCL_PRESERVE_BINARY_COMPATIBILITY is not set as it kills binary
-	compatibility to 8.3 and earlier versions. This is the main part of
-	the patch/change.
-
-	* generic/tcl.decls (line 1469):
-	* generic/tclHash.c (Tcl_InitHashTable):
-	* generic/tclHash.c (Tcl_InitHashTableEx):
-	* generic/tclObj.c (Tcl_InitObjHashTable): Changed
-	'Tcl_InitHashTableEx' to 'Tcl_InitCustomHashTable'. This change is
-	more of an estethical nature, replacing the ubiquitous 'Ex' suffix
-	with a more meaningful name. The introduced binary incompatibility is
-	deemed acceptable as it is between alpha versions.  Updated callers.
-
-	* doc/Hash.3:
-	* unix/mkLinks: Changed 'Tcl_InitHashTableEx' to
-	'Tcl_InitCustomHashTable'.
-
-2001-01-10  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/winPipe.test (winpipe-1.20):
-	* tests/winDde.test (createChildProcess):
-	* tests/pkgMkIndex.test (pkgtest::createIndex): Removed assumption
-	that paths contain no spaces which causes problems with both [eval]
-	and [open |...] due to the well-known differences between lists and
-	strings. Fixes [Bug 119406]
-
-2001-01-04  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/unixInit.test:
-	* unix/tclUnixInit.c (TclpInitLibraryPath):
-	* win/tclWinInit.c (TclpInitLibraryPath):  Several entries in the
-	library path ($tcl_libPath) are determined relative to the absolute
-	path of the executable. When the executable is installed in or near
-	the root directory of the file system, relative pathnames were being
-	incorrectly generated, and in the worst case, memory access violations
-	were crashing the program. [Bug 119416, Patch 102972]
-
-	******************************************************************
-	*** CHANGELOG ENTRIES FOR 2000 IN "ChangeLog.2000"             ***
-	*** CHANGELOG ENTRIES FOR 1999 AND EARLIER IN "ChangeLog.1999" ***
-	******************************************************************
diff --git a/ChangeLog.2002 b/ChangeLog.2002
deleted file mode 100644
index 9931657..0000000
--- a/ChangeLog.2002
+++ /dev/null
@@ -1,4741 +0,0 @@
-2002-12-18  David Gravereaux  <davygrvy@pobox.com>
-
-	* win/makefile.vc: some uses of xcopy swapped to the @$(CPY) macro.
-	Reported by Joe Mistachkin <joe@mistachkin.com>.
-
-2002-12-17  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclNotify.c (TclFinalizeNotifier, Tcl_SetServiceMode):
-	(Tcl_ThreadAlert): Check that the stub functions are non-NULL before
-	calling them. They could be set to NULL by Tcl_SetNotifier.
-
-2002-12-16  David Gravereaux  <davygrvy@pobox.com>
-
-	* generic/tclPipe.c (TclCleanupChildren):
-	* tests/winPipe.test:
-	* win/tclWinPipe.c (Tcl_WaitPid):
-	* win/tclWinTest.c:  Gave Tcl_WaitPid the ability to return a Win32
-	exception code translated into a posix style SIG*. This allows [close]
-	to report "CHILDKILLED" without the meaning getting lost in a
-	truncated exit code. In TclCleanupChildren(), TclpGetPid() had to get
-	moved to before Tcl_WaitPid() as the the handle is removed from the
-	list taking away the ability to get the process id after the wait is
-	done. This shouldn't effect the unix implimentaion unless waitpid is
-	called with a pid of zero, meaning "any". I don't think it is..
-
-2002-12-13  Don Porter  <dgp@users.sourceforge.net>
-
-	* unix/configure.in:	Updated configure of CVS snapshots to reflect
-	* win/configure.in:	the 8.4.1.1 patchlevel.
-
-	* unix/configure:	autoconf
-	* win/configure		autoconf
-
-2002-12-11  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclProc.c (ProcessProcResultCode): Fix failure to propagate
-	negative return codes up the call stack. [Bug 647307]
-	* tests/proc.test (proc-6.1): Test for Bug 647307
-
-	* generic/tclParseExpr.c (TclParseInteger):  Return 1 for the string
-	"0x" (recognize leading "0" as an integer). [Bug 648441]
-	* tests/parseExpr.test (parseExpr-19.1): Test for Bug 648441.
-
-2002-12-09  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/tclWinThrd.c (TclpMasterUnlock):
-	* generic/tclThread.c (TclFinalizeThreadData): TclpMasterUnlock must
-	exist and be called unconditional of TCL_THREADS. [Bug 651139]
-
-2002-12-08  David Gravereaux  <davygrvy@pobox.com>
-
-	* win/tclWinSock.c (SocketThreadExitHandler, InitSockets):  Check
-	that the tsdPtr is valid before dereferencing as we call it from the
-	exit handler, too [Bug 650353]. Another WSAStartup() loaded version
-	comparison byte swap issue fixed. Although 0x0101 byte swapped is
-	still 0x0101, properly claiming which is major/minor is more correct.
-
-2002-12-06  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclStubInit.c: regen
-	* generic/tclIntPlatDecls.h: regen
-	* generic/tclInt.decls: added TclWinResetInterface
-
-	* win/tclWin32Dll.c (TclWinResetInterfaces):
-	* win/tclWinInit.c (TclpSetInitialEncodings, WinEncodingsCleanup):
-	add exit handler that resets the encoding information to a state where
-	we can reuse Tcl. Following these changes, it is possible to reuse Tcl
-	(following Tcl_FindExecutable or Tcl_CreateInterp) following a
-	Tcl_Finalize.
-
-	* generic/tclIOUtil.c (TclFinalizeFilesystem): reset statics to their
-	original values on finalize to allow reuse of the library.
-
-2002-12-04  David Gravereaux  <davygrvy@pobox.com>
-
-	* win/tclWinPipe.c: reverted back to -r1.27 due to numerous test
-	failures that need to be resolved first. The idea was good, but the
-	details aren't.
-
-2002-12-04  David Gravereaux  <davygrvy@pobox.com>
-
-	* win/tclWinPipe.c (Tcl_WaitPid):  When a process exits with an
-	exception, pass this notice on to the caller with a SIG* code rather
-	than truncating the exit code and missing the meaning. This allows
-	TclCleanupChildren() to report "CHILDKILLED".
-
-	This has a different behavior than unix in that closing the read pipe
-	to a process sends the SIGPIPE signal which is returned as a SIGPIPE
-	exit status. On windows, we send the process a CTRL_BREAK_EVENT and
-	get back a CONTROL_C_EXIT which is documented to mean a SIGINT which
-	seems wrong as a system, but is the correct exit status.
-
-2002-12-04  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclIOUtil.c: fix to redirected 'load' in virtual filesystem
-	for some Unix systems.
-
-	* generic/tclEvent.c: the filesystem must be cleaned up before the
-	encoding subsystem because it needs access to encodings. Fixes crash
-	on exit observed in embedded applications.
-
-	* generic/tclTestObj.c: patch omitted from previous change of
-	2002-11-13
-
-2002-12-03  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclStubLib.c (Tcl_InitStubs): prevent the cached check of
-	tclStubsPtr to allow for repeated load/unload of the Tcl dll by
-	hosting apps. [Bug 615304]
-
-2002-12-03  David Gravereaux  <davygrvy@pobox.com>
-
-	* win/tclAppInit.c (sigHandler): Protect from trying to close a NULL
-	handle.
-
-	* win/tclWinPipe.c (PipeClose2Proc, TclpCreateProcess): Send a real
-	Win32 signal (CTRL_C_EVENT) when the read channel is brought down to
-	alert the child to close on its side. Start the process with
-	CREATE_NEW_PROCESS_GROUP to allow the ability to send these signals.
-	The following test case now brings down the child without the use of
-	an external [kill] command.
-
-	% set p [open "|[info name]" w+]
-	file8d5380
-	% pid $p
-	2876
-	% close $p     <- now doesn't block in Tcl_WaitPid()
-	%
-
-	* win/tclWinPipe.c (PipeClose2Proc): Changed CTRL_C_EVENT to
-	CTRL_BREAK_EVENT as it can't be ignored by the child and proved to
-	work on [open "|netstat 1" w+] where CTRL_C_EVENT didn't.
-
-2002-11-27  David Gravereaux  <davygrvy@pobox.com>
-
-	* win/tclWinPort.h: Don't turn off winsock prototypes!  TclX didn't
-	like it. Even though the core doesn't use the prototypes, do offer
-	them.
-
-	* win/tclWinSock.c: Removed shutdown() from the function table as it
-	wasn't referenced anywhere and cleaned-up some casting that that
-	wasn't needed.
-
-	* win/tclWinSock.c: WSAStartup() loaded version comparison error which
-	resulted in 2.0 looking less than 1.1.
-
-	* win/tclWinChan.c (Tcl_MakeFileChannel): return of DuplicateHandle()
-	incorrectly used. [Bug 618852]
-
-2002-11-26  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclEncoding.c (TclFinalizeEncodingSubsystem): properly
-	cleanup all encodings by using Tcl_FirstHashEntry in the while loop.
-
-	* unix/Makefile.in (valgrind): add simple valgrind target
-
-	* tests/exec.test: unset path var to allow singleproc testing
-
-	* generic/tclInterp.c (AliasCreate): preserve/release interps to
-	prevent possible FMR error in bad alias cases.
-
-2002-11-26  David Gravereaux  <davygrvy@pobox.com>
-
-	* win/tclWinPort.h:
-	* win/tclWinSock.c:  This patch does two things:
-
-	1) Cleans-up the winsock typedefs by using the typedefs provided by
-	winsock2.h. This has no effect on how winsock is initialized; just
-	makes the source code easier to read. [Patch 561305 561301]
-
-	2) Revamps how the socket message handler thread is brought up and
-	down to allow for cleaner exits without the use of TerminateThread().
-	TerminateThread is evil. No attempt has been made to resolve [Bug
-	593810] which may need a new channel driver version for adding a
-	registering function within the transfered thread to init the handler
-	thread. IOW, initialization of the TSD structure is getting bypassed
-	through the thread extension's [thread::transfer] command.
-
-2002-11-26  David Gravereaux  <davygrvy@pobox.com>
-
-	* win/tclWinConsole.c:
-	* win/tclWinPipe.c:
-	* win/tclWinSerial.c:
-	* win/tclWinSock.c:
-	* win/tclWinThrd.c:
-	* win/tclWinTime.c:  General cleanup of all worker threads used by the
-	channel drivers. Eliminates the normal case where the worker thread is
-	terminated ('cept the winsock one). Instead, use kernel events to
-	signal a clean exit. Only when the worker thread is blocked on an I/O
-	call is the thread terminated. Essentially, this makes all other
-	channel worker threads behave like the PipeReaderThread() function for
-	it's cleaner exit behavior. This appears to fix [Bug 597924] but needs
-	3rd party confirmation to close the issue.
-
-2002-11-26  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/README: Update msys build env URL. This release #4 build both
-	tcl and tk without problems.
-
-2002-11-22  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* library/init.tcl:         code cleanup to reduce use of
-	* library/opt/optparse.tcl: string compare
-
-	* tests/interp.test: interp-14.4
-	* generic/tclInterp.c (TclPreventAliasLoop): prevent seg fault when
-	creating an alias command over the interp name. [Bug 641195]
-
-2002-11-18  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclUtil.c (SetEndOffsetFromAny): handle integer offset
-	after the "end-" prefix.
-
-	* generic/get.test:
-	* generic/string.test:
-	* generic/tclObj.c (SetIntFromAny, SetWideIntFromAny):
-	* generic/tclGet.c (TclGetLong, Tcl_GetInt): simplify sign handling
-	before calling strtoul(l). [Bug 634856]
-
-2002-11-18  David Gravereaux  <davygrvy@pobox.com>
-
-	* win/tclWinThrd.c (Tcl_CreateThread/TclpThreadExit): Fixed improper
-	compiler macros that missed the VC++ compiler. This resulted in VC++
-	builds using CreateThread()/ExitThread() in place of the proper
-	_beginthreadex()/_endthreadex(). This was a large error and am
-	surprised I missed seeing it earlier.
-
-2002-11-13  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/regexpComp.test: added tests 22.*
-	* generic/tclCompCmds.c (TclCompileRegexpCmd): add left and right
-	anchoring (^ and $) recognition and check starting or ending .* to
-	extend the number of REs that can be compiled to string match or
-	string equal.
-
-2002-11-13  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c:
-	* tests/trace.test: applied patch from Hemang Levana to fix [Bug
-	615043] in execution traces with 'return -code error'.
-
-	* generic/tclTestObj.c:
-	* tests/stringObj.test: added 'knownBug' test for [Bug 635200]
-	* generic/tclStringObj.c: corrected typos in comments
-
-	* generic/tclFileName.c:
-	* tests/fileName.test: applied patch for bug reported against tclvfs
-	concerning handling of Windows serial ports like 'com1', 'lpt3' by the
-	virtual filesystem code.
-
-	* doc/RegExp.3: clarification of the 'extendMatch' return values.
-
-2002-11-11  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclUtil.c (Tcl_Backslash): use TclUtfToUniChar.
-	(Tcl_StringCaseMatch): use TclUtfToUniChar and add further
-	optimizations for the one-byte/char case.
-
-	* generic/tclUtf.c: make use of TclUtfToUniChar macro throughout the
-	functions, and add extra optimization to Tcl_NumUtfChars for
-	one-byte/char case.
-
-	* generic/tclVar.c (DisposeTraceResult, CallVarTraces): add proper
-	static declarations.
-
-	* generic/tclStringObj.c (Tcl_GetCharLength): optimize for the ascii
-	char case.
-	(Tcl_GetUniChar): remove unnecessary use of Tcl_UtfToUniChar.
-	(FillUnicodeRep): Use TclUtfToUniChar.
-
-	* generic/tclHash.c (HashStringKey): move string++ lower to save an
-	instruction.
-
-	* generic/tclExecute.c (TclExecuteByteCode): improve INST_STR_CMP to
-	use memcmp in the one-byte/char case, also use direct index for
-	INST_STR_INDEX in that case.
-
-	* generic/tclEncoding.c (UtfToUtfProc, UtfToUnicodeProc):
-	(TableFromUtfProc, EscapeFromUtfProc): Use TclUtfToUniChar.
-	(UnicodeToUtfProc, TableToUtfProc): add 1-byte char optimizations for
-	Tcl_UniCharToUtf call. These improve encoded channel conversion speeds
-	by up to 20%.
-
-	* tests/split.test: added 1-char string split tests
-	* generic/tclCmdMZ.c (Tcl_SplitObjCmd): Use TclUtfToUniChar. Also
-	added a special case for single-ascii-char splits.
-	(Tcl_StringObjCmd): Use TclUtfToUniChar. For STR_RANGE, support
-	getting ranges of ByteArrays (reverts change from 2000-05-26).
-	(TraceExecutionProc) add proper static declaration.
-
-	* generic/tclInt.h: add macro version of Tcl_UtfToUniChar
-	(TclUtfToUniChar) that does the one-byte utf-char check without
-	calling Tcl_UtfToUniChar, for use by the core. This brings notable
-	speedups for primarily ascii string handling.
-
-	* generic/tcl.h (TCL_PATCH_LEVEL): bump to 8.4.1.1 for patchlevel
-	only. This interim number will only be reflected by [info patchlevel].
-
-2002-11-11  Kevin Kenny  <kennykb@acm.org>
-
-	* doc/Tcl.n: Corrected indentation of the new language. Oops.
-
-2002-11-10  Kevin Kenny <kennykb@acm.org>
-
-	* doc/Tcl.n: Added language to the Endekalogue to make it clear that
-	substitutions always take place from left to right. [Bug 635644]
-
-2002-11-06  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* changes: Note TclInExit TclInThreadExit changes.
-	* generic/tclEvent.c (TclInExit, TclInThreadExit): Split out
-	functionality of TclInExit to make it clear which one should be called
-	in each situation.
-	* generic/tclInt.decls: Declare TclInThreadExit.
-	* generic/tclIntDecls.h: Regen.
-	* generic/tclStubInit.c: Regen.
-	* mac/tclMacChan.c (StdIOClose):
-	* unix/tclUnixChan.c (FileCloseProc):
-	* win/tclWinChan.c (FileCloseProc):
-	* win/tclWinConsole.c (ConsoleCloseProc):
-	* win/tclWinPipe.c (TclpCloseFile):
-	* win/tclWinSerial.c (SerialCloseProc): Invoke the new TclInThreadExit
-	method instead of TclInExit.
-
-2002-11-06  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure: Regen.
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): Generate a fatal configure error if
-	no ar program can be found on the path. [Bug 582039]
-	* win/configure: Regen.
-	* win/configure.in: Check that AR, RANLIB, and RC are found on the
-	path when building with gcc.
-
-2002-11-03  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclAppInit.c:  Calls Registry_Init() and Dde_Init() when
-	STATIC_BUILD and TCL_USE_STATIC_PACKAGES macros are set.
-
-	* win/makefile.vc:
-	* win/rules.vc:  linkexten option now sets the TCL_USE_STATIC_PACKAGES
-	macro which also adds the registry and dde object files to the link
-	of the shell. [Patch 479697] Also factored some additional macros that
-	will be helpful for extension authors. Version grepping of tcl.h will
-	need to be added to complete this.
-
-	* win/buildall.vc.bat: Added more descriptive commentary.
-
-2002-11-01  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinReg.c:  Changed the Tcl_PkgProvide() line to declare the
-	registry extension at version 1.1 from 1.0.
-
-2002-10-31  Andreas Kupries  <andreask@activestate.com>
-
-	* library/word.tcl: Changed $tcl_platform to $::tcl_platform to avoid
-	possible scope trouble.
-
-2002-10-29  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* win/tclWinInt.h:
-	* win/tclWin32Dll.c: added comments about certain NULL function
-	pointers which will be filled in when Tcl_FindExecutable is called, so
-	that users don't report invalid bugs on this topic. (No code changes
-	at all).
-
-2002-10-29  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tclLoadDyld.c (TclpFindSymbol): pass all dyld error messages
-	upstream [Bug 627546].
-
-2002-10-28  Andreas Kupries  <andreask@activestate.com>
-
-	* library/dde/pkgIndex.tcl:
-	* library/reg/pkgIndex.tcl: Changed the hardwired debug suffix (d) to
-	the correct suffix (g).
-
-2002-10-28  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/auto.tcl:	Converted the Mac-specific [package unknown]
-	* library/init.tcl:	behavior to use a chaining mechanism to extend
-	* library/package.tcl:	the default [tclPkgUnknown]. [Bug 627660]
-	* library/tclIndex:	[Patch 624509] (steffen)
-
-2002-10-26  David Gravereaux <davygrvy@pobox.com>
-
-	* win/makefile.vc: xcopy on NT 4.0 doesn't support the /Y switch
-	(overwrite). Added logic to handle this. [Bug 618019]
-
-2002-10-23  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclInt.h: Removed definitions of obsolete HistoryEvent and
-	HistoryRev structures (the history mechanism has been written in Tcl
-	for some time now.)
-
-2002-10-22  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	*** 8.4.1 TAGGED FOR RELEASE ***
-
-	* changes: updated for 8.4.1 release
-
-	* win/Makefile.in: removed @MEM_DEBUG_FLAGS@ subst.
-	* win/configure: regen
-	* win/configure.in: removed SC_ENABLE_MEMDEBUG call
-	* win/tcl.m4: replaced SC_ENABLE_MEMDEBUG with a more intelligent
-	SC_ENABLE_SYMBOLS that takes yes|no|mem|compile|all as options now.
-
-2002-10-22  Daniel Steffen  <das@users.sourceforge.net>
-
-	* library/auto.tcl (tcl_findLibrary):
-	* library/package.tcl (tclPkgUnknown): on macosx, search inside the
-	Resources/Scripts subdirectory of any potential package directory.
-	* macosx/Tcl.pbproj/project.pbxproj: add standard Frameworks dirs to
-	TCL_PACKAGE_PATH make argument.
-	* unix/tclUnixInit.c (TclpSetVariables): on macosx, add embedded
-	framework dirs to tcl_pkgPath: @executable_path/../Frameworks and
-	@executable_path/../PrivateFrameworks (if they exist), as well as the
-	dirs in DYLD_FRAMEWORK_PATH (if set). [Patch 624509]
-	use standard MAXPATHLEN instead of literal 1024
-
-2002-10-22  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/StringObj.3, doc/Object.3: Documented that Tcl_Obj's standard
-	string form is a modified UTF-8; apparently, this was not mentioned
-	anywhere in the main docs, and lead to [Bug 624919].
-
-2002-10-21  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Tcl.pbproj/project.pbxproj: bumped version to 8.4.1
-	* generic/tcl.h: Added reminder comment to edit
-	macosx/Tcl.pbproj/project.pbxproj when version number changes.
-
-2002-10-18  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* library/reg/pkgIndex.tcl:
-	* win/configure:
-	* win/configure.in:
-	* win/Makefile.in:
-	* win/makefile.vc:
-	* win/makefile.bc:    Updated to reg1.1
-
-	* doc/registry.n:      Added support for broadcasting changes to the
-	* tests/registry.test: registry Environment. Noted proper code in the
-	* win/tclWinReg.c:     docs. [Patch 625453]
-
-	* unix/Makefile.in (dist): add any mac/tcl*.sea.hqx files
-
-2002-10-17  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclVar.c:	Fixed code that check for proper # of args to
-	* tests/var.test:	[array names]. Added test. [Bug 624755]
-
-2002-10-16  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/configure:                 add workaround for cygwin windres
-	* win/tcl.m4 (SC_CONFIG_CFLAGS): problem. [Patch 624010] (howell)
-
-2002-10-15  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* README: added archives.tcl.tk note
-
-	* unix/configure:
-	* unix/tcl.m4: Correct AIX-5 ppc build flags. Correct HP 11 64-bit gcc
-	building. [Patch 601051] (martin)
-
-2002-10-15  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c:
-	* tests/trace.test: applied patch from Hemang Levana to fix [Bug
-	615043] in execution traces with idle tasks firing.
-
-2002-10-14  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclEnv.c (Tcl_PutEnv): correct possible mem leak. [Patch
-	623269] (brouwers)
-
-2002-10-11  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tcl.h: Need a different strategy through the maze of
-	#defines to let people building with Cygwin build correctly. Also made
-	some comments less misleading...
-
-2002-10-10  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* README: fixed minor nits [Bug 607776] (virden)
-
-	* win/configure:
-	* win/tcl.m4: enable USE_THREAD_ALLOC (new threaded allocator) by
-	default in cygwin configure on Windows.
-
-2002-10-10  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/Tcl.n:	Clarified that namespace separators are legal in the
-			variable names during $-subtitution. [Bug 615139]
-
-	* doc/regexp.n:	Typo correction. Thanks Ronnie Brunner. [Bug 606826]
-
-2002-10-10  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* unix/tclLoadAout.c
-	* unix/tclLoadDl.c
-	* unix/tclLoadDld.c
-	* unix/tclLoadDyld.c
-	* unix/tclLoadNext.c
-	* unix/tclLoadOSF.c
-	* unix/tclLoadShl.c
-	* win/tclWinLoad.c: allow either full paths or simply dll names to be
-	specified when loading files (the latter will be looked up by the OS
-	on your PATH/LD_LIBRARY_PATH as appropriate). Fixes [Bug 611108]
-
-2002-10-09  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/README: doc'ed --enable-symbols options.
-	* unix/Makefile.in: removed @MEM_DEBUG_FLAGS@ subst.
-	* unix/configure: regen
-	* unix/configure.in: removed SC_ENABLE_MEMDEBUG call
-	* unix/tcl.m4: replaced SC_ENABLE_MEMDEBUG with a more intelligent
-	SC_ENABLE_SYMBOLS that takes yes|no|mem|compile|all as options now.
-
-2002-10-09  Kevin B. Kenny  <kennykb@acm.org>
-
-	* win/tclWinTime.c: Added code to set an exit handler that terminates
-	the thread that calibrates the performance counter, so that the thread
-	won't outlive unloading the Tcl DLL. [Bug 620735]
-
-2002-10-09  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/binary.n: More clarification of [binary scan]'s behaviour.
-
-2002-10-09  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclIntDecls.h: fixed botched regen.
-
-2002-10-09  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclInt.decls: made TclSetPreInitScript() declaration
-	generic as it is used on mac & aqua as well.
-	* generic/tclIntDecls.h:
-	* generic/tclStubInit.c: regen.
-	* generic/tclCompile.h: added prototype for TclCompileVariableCmd.
-
-	* mac/tclMacPort.h: removed incorrect <fcntl.h> definitions and
-	obsolete <stat.h> definitions.
-	* mac/tclMacChan.c: removed obsolete GetOpenMode() and replaced
-	associated constants with the <fcntl.h> analogues (they existing defs
-	were inconsistent with <fcntl.h> which was causing havoc when
-	Tcl_GetOpenMode was used instead of private GetOpenMode).
-
-	* mac/tclMacFCmd.c: removed GenerateUniqueName(), use equivalent (and
-	identically named) routine from MoreFiles instead.
-
-	* mac/tclMacLoad.c: CONSTification, fixes to Vince's last changes.
-
-	* mac/tclMacFile.c:
-	* mac/tclMacTest.c:
-	* mac/tclMacUnix.c: CONSTification.
-
-	* mac/tclMacOSA.c: CONSTification, sprintf fixes, UH 3.4.x changes;
-	fix for missing autoname token from TclOSACompileCmd. (bdesgraupes)
-	* mac/AppleScript.html(AppleScript delete): doc fix. (bdesgraupes)
-
-	* mac/tcltkMacBuildSupport.sea.hqx: updated MoreFiles to 1.5.3,
-	updated build instructions for 8.4.
-	* mac/tclMacProjects.sea.hqx: rebuilt archive.
-
-2002-10-09  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/Alloc.3: Added a note to mention that attempting to allocate a
-	zero-length block can return NULL. [Tk Bug 619544]
-
-2002-10-04  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/binary.n: Doc improvements [Patch 616480]
-
-	* tests/fCmd.test, tests/winFCmd.test:
-	* tools/eolFix.tcl, tools/genStubs.tcl: [file exist] -> [file exists]
-	Thanks to David Welton.
-
-2002-10-03  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/tcltest.n: fixed typo [Bug 618018]. Thanks to "JJM".
-
-2002-10-03  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tools/man2help2.tcl:
-	* tests/http.test, tests/httpd, tests/httpold.test:
-	* tests/env.test, tests/binary.test, tests/autoMkindex.test:
-	* library/init.tcl, library/http/http.tcl: [info exist] should really
-	be [info exists]. [Bug 602566]
-
-	* doc/lsearch.n: Better specification of what happens when -sorted is
-	mixed with other options. [Bug 617816]
-
-2002-10-01  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclProc.c (TclCreateProc): mask out VAR_UNDEFINED for
-	precompiled locals to support 8.3 precompiled code.
-	(Tcl_ProcObjCmd): correct 2002-09-26 fix to look for tclProcBodyType.
-
-2002-10-01  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/socket.n: Mentioned that ports may be specified as serivce names
-	as well as integers. [Bug 616843]
-
-2002-09-30  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclCompCmds.c (TclCompileRegexpCmd): correct the checking
-	for bad re's that didn't terminate the re string. Resultant compiles
-	were correct, but much slower than necessary.
-
-2002-09-29  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclAppInit.c: Added proper exiting conditions using Win32
-	console signals. This handles the existing lack of a Ctrl+C exit to
-	call exit handlers when built for thread support. Also, properly
-	handles exits from other conditions such as CTRL_CLOSE_EVENT,
-	CTRL_LOGOFF_EVENT, and CTRL_SHUTDOWN_EVENT signals. In all cases,
-	exit handlers will be called. [Bug 219355]
-
-	* win/makefile.vc: Added missing tclThreadAlloc.c to the build rules
-	and defines USE_THREAD_ALLOC when TCL_THREADS is defined to get the
-	new behavior by default.
-
-2002-09-27  Don Porter  <dgp@users.sourceforge.net>
-
-	* README:		Bumped to version 8.4.1 to avoid confusion of
-	* generic/tcl.h:	CVS snapshots with the actual 8.4.0 release.
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-
-	* unix/configure:	autoconf
-	* win/configure:
-
-2002-09-26  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/configure: regen.
-	* unix/tcl.m4: improve AIX-4/5 64bit compilation support.
-
-	* generic/tclProc.c (Tcl_ProcObjCmd): correct overeager optimization
-	of noop proc to handle the precompiled case. (sofer)
-
-	* unix/ldAix (nmopts): add -X32_64 to make it work for 32 or 64bit
-	mode compilation.
-
-	* library/encoding/koi8-u.enc: removed extraneous spaces that confused
-	encoding reader. [Bug 615115]
-
-	* unix/Makefile.in: generate source dists with -src designator and do
-	not generate .Z anymore (just .gz and .zip).
-
-2002-09-18  Mumit Khan <khan@nanotech.wisc.edu>
-
-	Added basic Cygwin support.
-
-	* win/tcl.m4 (SC_PATH_TCLCONFIG): Support one-tree build.
-	(SC_PATH_TKCONFIG): Likewise.
-	(SC_PROG_TCLSH): Likewise.
-	(SC_CONFIG_CFLAGS): Assume real Cygwin port and remove -mno-cygwin
-	flags. Add -mwin32 to extra_cflags and extra_ldflags. Remove ``-e
-	_WinMain@16'' from LDFLAGS_WINDOW.
-	* win/configure.in: Allow Cygwin build.
-	(SEH test): Define to be 1 instead of empty value.
-	(EXCEPTION_DISPOSITION): Add test.
-	* win/configure: Regenerate.
-
-	* generic/tcl.h: Don't explicitly define __WIN32__ for Cygwin, let the
-	user decide whether to use Windows or POSIX personality.
-	(TCL_WIDE_INT_TYPE, TCL_LL_MODIFIER, struct Tcl_StatBuf): Define for
-	Cygwin.
-	* generic/tclEnv.c (Tcl_CygwinPutenv): putenv replacement for Cygwin.
-	* generic/tclFileName.c (Tcl_TranslateFileName): Convert POSIX to
-	native format.
-	(TclDoGlob): Likewise.
-	* generic/tclPlatDecls.h (TCHAR): Define for Cygwin.
-	* win/tclWinPort.h (putenv, TclpSysAlloc, TclpSysFree,
-	(TclpSysRealloc): Define for Cygwin.
-
-2002-09-26  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Makefile: preserve environment value of INSTALL_ROOT. When
-	embedding only use deployment build. Force relink before embedded
-	build to ensure new linker flags are picked up.
-
-	* macosx/Tcl.pbproj/project.pbxproj: add symbolic links to debug lib,
-	stub libs and tclConfig.sh in framework toplevel. Configure target
-	dependency fix. Fix to 'clean' action. Added private tcl headers to
-	framework. Install tclsh symbolic link. Html doc build works when no
-	installed tclsh available. Made html doc structure in framework more
-	like in Apple frameworks.
-
-2002-09-24  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* unix/tcl.m4 (SC_TCL_64BIT_FLAGS): Yet more robust 64-bit value
-	detection to close [Bug 613117] on more systems.
-
-	* generic/tclCompile.c (TclPrintSource): More CONSTifying.
-	* generic/tclExecute.c (EvalStatsCmd): Object-ify to reduce warnings.
-	Thanks to 'CoderX2' on the chat for bringing this to my attention...
-
-	* unix/tcl.m4: Forgot to define TCL_WIDE_INT_IS_LONG at the
-	appropriate moment. I believe this is the cause of [Bug 613117]
-
-	* doc/lset.n: Changed 'list' to 'varName' for consistency with lappend
-	documentation. Thanks to Glenn Jackman [Bug 611719]
-
-2002-09-22  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl:  Corrected [puts -nonewline] within
-	test bodies. Thanks to Harald Kirsch. [Bug 612786, Patch 612788] Also
-	corrected reporting of body return code. Thanks to David Taback [Bug
-	611922]
-	* library/tcltest/pkgIndex.tcl: Bump to version 2.2.1.
-	* tests/tcltest.test: added tests for these bugs.
-
-2002-09-15  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure: Regen.
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): Add PEEK_XCLOSEIM define under
-	Linux. This is used by Tk to double check that an X input context is
-	cleaned up before it is closed.
-
-2002-09-12  David Gravereaux <davygrvy@pobox.com>
-
-	* win/coffbase.txt: Added BLT to the virtual base address listings
-	table should BLT's build tools decide to use it.
-
-2002-09-12  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tcl.h:
-	* mac/tclMacApplication.r:
-	* mac/tclMacLibrary.r:
-	* mac/tclMacResource.r: unified use of the two equivalent resource
-	compiler header inclusion defines RC_INVOKED and RESOURCE_INCLUDED,
-	now use RC_INVOKED throughout.
-
-2002-09-10  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/README: Add note about building extensions with the same
-	compiler Tcl was built with. [Tk Bug 592096]
-
-2002-09-10  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Tcl.pbproj/project.pbxproj: disabled building html
-	documentation during embedded build.
-
-2002-09-10  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/Makefile.in: added DYLIB_INSTALL_DIR variable for macosx and
-	set it to default value ${LIB_RUNTIME_DIR}
-	* unix/tcl.m4 (Darwin): use DYLIB_INSTALL_DIR instead of
-	LIB_RUNTIME_DIR in the -install_name argument to ld.
-	* unix/configure: regen.
-
-	* macosx/Tcl.pbproj/project.pbxproj:
-	* macosx/Makefile: added support for building Tcl as an embedded
-	framework, i.e. using an dyld install_name containing
-	@executable_path/../Frameworks via the new DYLIB_INSTALL_DIR
-	unix/Makefile variable.
-
-2002-09-10  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	*** 8.4.0 TAGGED FOR RELEASE ***
-
-2002-09-06  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/file.n:  Format correction, and clarified [file normalize]
-	returns an absolute path.
-
-	* doc/tcltest.n:  Added examples section, as long promised.
-
-2002-09-06  Reinhard Max  <max@suse.de>
-
-	* tests/tcltest.test: Added nonRoot flag to tests 8.3, 8.4, and 8.12.
-
-2002-09-05  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/tcltest.n:  Clarified phrasing.
-
-	* generic/tclBasic.c (TclRenameCommand,CallCommandTraces):
-	* tests/trace.test (trace-27.1): Corrected memory leak when a rename
-	trace deleted the command being traced. Test added. Thanks to Hemang
-	Lavana for the fix. [Bug 604609]
-
-	* generic/tclVar.c (TclDeleteVars):  Corrected logic for setting the
-	TCL_INTERP_DESTROYED flag when calling variable traces. [Tk Bug 605121]
-
-2002-09-04  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclVar.c (DeleteArray): leak plug [Bug 604239]. Thanks to
-	dkf and dgp for the long and difficult discussion in the chat.
-
-2002-09-03  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclVar.c (Tcl_UpVar2): code cleanup to not use goto
-
-	* unix/configure: remove -pthread from LIBS on FreeBSD in thread
-	* unix/tcl.m4:    enabled build. [Bug 602849]
-
-2002-09-03  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclInterp.c (AliasCreate): a Tcl_Obj was leaked on error
-	return from TclPreventAliasLoop.
-
-2002-09-03  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Tcl.pbproj/project.pbxproj: Bumped version number to 8.4.0
-	and updated copyright info.
-
-2002-09-03  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclVar.c (Tcl_UpVar2): a Tcl_Obj was being leaked on error
-	return from TclGetFrame.
-
-2002-09-03  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes:  Updated changes for 8.4.0 release.
-
-2002-09-02  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/tclUnixFile.c (TclpObjLink): removed unnecessary/unfreed extra
-	native char*.
-
-	* unix/tclUnixChan.c (Tcl_MakeTcpClientChannel): make sure to init
-	flags field of TcpState ptr to 0.
-
-	* unix/configure:
-	* unix/tcl.m4: added 64-bit gcc compilation support on HP-11.
-	[Patch 601051] (martin)
-
-	* README:		Bumped version number to 8.4.0
-	* generic/tcl.h:
-	* tools/tcl.wse.in:
-	* unix/configure:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/README.binary:
-	* win/configure:
-	* win/configure.in:
-
-	* generic/tclInterp.c (SlaveCreate): make sure that the memory and
-	checkmem commands are initialized in non-safe slave interpreters when
-	TCL_MEM_DEBUG is used. [Bug 583445]
-
-	* win/tclWinConsole.c (ConsoleCloseProc): only wait on writable pipe
-	if there was something to write. This may prevent infinite wait on
-	exit.
-
-	* tests/exec.test: marked exec-18.1 unixOnly until the Windows
-	incompatibility (in the test, not the core) can be resolved.
-
-	* tests/http.test (http-3.11): added close $fp that was causing an
-	error on Windows because the file was not closed before deleting.
-
-	* unix/tclUnixInit.c (Tcl_MacOSXGetLibraryPath): made this static
-	function only appear when HAVE_CFBUNDLE is defined.
-
-2002-08-31  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tcl.m4: added TK_SHLIB_LD_EXTRAS analogue of existing
-	TCL_SHLIB_LD_EXTRAS for linker settings only used when linking Tk.
-
-	* unix/configure: regen
-
-2002-08-31  Daniel Steffen  <das@users.sourceforge.net>
-
-	*** macosx-8-4-branch merged into the mainline [Patch 602770] ***
-
-	* generic/tcl.decls: added new macosx specific entry to stubs table.
-
-	* tools/genStubs.tcl: added generation of platform guards for
-	macosx. This is a little more complex than it seems, because MacOS X
-	IS "unix" plus a little bit, for the purposes of Tcl. BUT
-	unfortunately, Tk uses "unix" to mean X11. So added platform keys for
-	macosx (the little added to "unix"), "aqua" and "x11" to distinguish
-	these for Tk.
-
-	* generic/tcl.h: added a #ifnded RESOURCE_INCLUDED so that tcl.h can
-	be passed to the resource compiler.
-
-	* generic/tcl.h:
-	* generic/tclNotify.c: added a few Notifier procs, to be able to
-	modify more bits of the Tcl notifier dynamically. Required to get Mac
-	OS X Tk to live on top of the Tcl Unix threaded notifier. Changes the
-	size of the Tcl_NotifierProcs structure, but doesn't move any elements
-	around.
-
-	* unix/tclUnixNotfy.c: moved the call to Tcl_ConditionNotify till
-	AFTER we are done mucking with the pointer swap. Fixes cases where the
-	thread waiting on the condition wakes & accesses the waitingListPtr
-	before it gets reset, causing a hang.
-
-	* library/auto.tcl (tcl_findLibrary): added checking the directories
-	in the tcl_pkgPath for library files on macosx to enable support of
-	the standard Mac OSX library locations.
-
-	* unix/Makefile.in:
-	* unix/configure.in:
-	* unix/tcl.m4: added MAC_OSX_DIR. Added PLAT_OBJS to the OBJS: there
-	are some MacOS X specific files now for Tcl, and when I get the
-	resource & applescript stuff ported over, and restore support for
-	FindFiles, etc, there will be a few more. Added LD_LIBRARY_PATH_VAR
-	configure variable to avoid having to set all possible LD_LIBRARY_PATH
-	analogues on all platforms. LD_LIBRARY_PATH_VAR is "LD_LIBRARY_PATH"
-	by default, "LIBPATH" on AIX, "SHLIB_PATH" on HPUX and
-	"DYLD_LIBRARY_PATH" on Mac OSX. Added configure option to package Tcl
-	as a framework on Mac OSX.
-
-	* macosx/tclMacOSXBundle.c (new): support for finding Tcl extension
-	packaged as 'bundles' in the standard Mac OSX library locations.
-
-	* unix/tclUnixInit.c: added support for findig the tcl script library
-	inside Tcl packaged as a framework on Mac OSX.
-
-	* macosx/Tcl.pbproj/jingham.pbxuser (new):
-	* macosx/Tcl.pbproj/project.pbxproj (new): project for Apple's
-	ProjectBuilder IDE.
-
-	* macosx/Makefile (new): simple makefile for building the project from
-	the command line via the ProjectBuilder tool 'pbxbuild'.
-
-	* unix/configure:
-	* generic/tclStubInit.c:
-	* generic/tclPlatDecls.h: regen
-
-2002-08-29  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* win/tclWinThrd.c (TclpFinalizeThreadData, TclWinFreeAllocCache):
-	Applied patch for [Bug 599428], provided by Miguel Sofer
-	<msofer@users.sourceforge.net>.
-
-2002-08-28  David Gravereaux <davygrvy@pobox.com>
-
-	* generic/tclEnv.c:
-	* unix/configure.in:
-	* win/tclWinPort.h:  putenv() on some systems copies the buffer rather
-	than taking reference to it. This causes memory leaks and is know to
-	effect mswindows (msvcrt) and NetBSD 1.5.2 . This patch tests for this
-	behavior and turns on -DHAVE_PUTENV_THAT_COPIES=1 when approriate.
-	Thanks to David Welton for assistance. [Bug 414910]
-
-	* unix/configure: regen'd
-
-2002-08-28  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/eval.n: Added mention of list command and corrected "SEE ALSO".
-
-	* unix/configure.in: Cache handling of ac_cv_type_socklen_t was wrong.
-	[Bug 600931] reported by John Ellson. Fixed by putting the brackets
-	where they belong.
-
-2002-08-26  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCompCmds.c: fix for [Bug 599788] (error in element name
-	causing segfault), reported by Tom Wilkason. Fixed by copying the
-	tokens instead of the source string.
-
-2002-08-26  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclThreadAlloc.c: small optimisation, reducing the new
-	allocator's overhead.
-
-2002-08-23  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclObj.c (USE_THREAD_ALLOC): fixed leak [Bug 597936]. Thanks
-	to Zoran Vasiljevic.
-
-2002-08-23  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclThreadAlloc.c (USE_THREAD_ALLOC): moving objects between
-	caches as a block, instead of one-by-one.
-
-2002-08-22  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclBasic.c:
-	* generic/tclCmdMZ.c: fix for freed memory r/w in delete traces [Bug
-	589863], patch by Hemang Lavana.
-
-2002-08-20  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* win/Makefile.in (CFLAGS):
-	* unix/Makefile.in (MEM_DEBUG_FLAGS): Added usage of @MEM_DEBUG_FLAGS@.
-	* win/configure.in:
-	* unix/configure.in: Added usage of SC_ENABLE_MEMDEBUG.
-	* win/tcl.m4:
-	* unix/tcl.m4: Added macro SC_ENABLE_MEMDEBUG. Allows a user of
-	configure to (de)activate memory validation and debugging
-	(TCL_MEM_DEBUG). No need to modify the makefile anymore.
-
-2002-08-20  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCkalloc.c:	CONSTified MemoryCmd and CheckmemCmd.
-
-	* README:		Bumped version number to 8.4b3 to distinguish
-	* generic/tcl.h:	HEAD from the 8.4b2 release.
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/README.binary:
-	* win/configure.in:
-
-	* unix/configure:	autoconf
-	* win/configure:
-
-	* library/http/http.tcl:	Corrected installation directory of
-	* library/msgcat/msgcat.tcl:	the package tcltest 2.2. Added
-	* library/opt/optparse.tcl:	comments in other packages to remind
-	* library/tcltest/tcltest.tcl:	that installation directories need
-	* unix/Makefile.in:		updates to match increasing version
-	* win/Makefile.in:		numbers. [Bug 597450]
-	* win/makefile.bc:
-	* win/makefile.vc:
-
-2002-08-19  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* unix/tclUnixTest.c (TestfilehandlerCmd): Changed readable/writable
-	to the more common readable|writable. Fixes [Bug 596034] reported by
-	Larry Virden <lvirden@users.sourceforge.net>.
-
-2002-08-16  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/fCmd.test: Added test to make sure that the cause of the
-	problem is detectable with an unpatched Tcl.
-	* doc/ObjectType.3: Added note on the root cause of this problem to
-	the documentation, since it is possible for user code to trigger this
-	sort of behaviour too.
-	* generic/tclIOUtil.c (SetFsPathFromAny): Objects should only have
-	their old representation deleted when we know that we are about to
-	install a new one. This stops a weird TclX bug under Linux with
-	certain kinds of memory debugging enabled which essentally came down
-	to a double-free of a string.
-
-2002-08-14  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclInt.h:
-	* generic/tclObj.c: (code cleanup) factored the parts in the macros
-	TclNewObj() / TclDecrRefCount() into a common part for all
-	memory allocators and two new macros TclAllocObjStorage() /
-	TclFreeObjStorage() that are specific to each allocator and fully
-	describe the differences. Removed allocator-specific code from
-	tclObj.c by using the macros.
-
-2002-08-12  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c: fixing UMR in delete traces, [Bug 589863].
-
-2002-08-08  David Gravereaux <davygrvy@pobox.com>
-
-	* tools/man2help.tcl: Fixed $argv handling bug where if -bitmap wasn't
-	specified $argc was off by one.
-
-2002-08-08  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* tests/uplevel.test: added 6.1 to test [uplevel] with shadowed
-	commands [Bug 524383]
-
-	* tests/subst.test: added 5.8-10 as further tests for [Bug 495207]
-
-2002-08-08  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/README: Noted removal of defs.tcl.
-
-2002-08-08  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* doc/lsearch.n: corrected lsearch docs to use -inline in examples.
-
-	*** 8.4b2 TAGGED FOR RELEASE ***
-
-	* tests/fCmd.test:
-	* tests/unixFCmd.test: updated tests for new link copy behavior.
-	* generic/tclFCmd.c (CopyRenameOneFile): changed the behavior to
-	follow links to endpoints and copy that file/directory instead of just
-	copying the surface link. This means that trying to copy a link that
-	has no endpoint (danling link) is an error. [Patch 591647] (darley)
-	(CopyRenameOneFile): this is currently disabled by default until
-	further issues with such behavior (like relative links) can be
-	handled correctly.
-
-	* tests/README: slight wording improvements
-
-2002-08-07  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* docs/BoolObj.3: added description of valid string reps for a
-	boolean object. [Bug 584794]
-	* generic/tclObj.c: optimised Tcl_GetBooleanFromObj and
-	SetBooleanFromAny to avoid parsing the string rep when it can be
-	avoided. [Bugs 584650, 472576]
-
-2002-08-07  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCompile.h:
-	* generic/tclObj.c: making tclCmdNameType static ([Bug 584567], Don
-	Porter).
-
-2002-08-07  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclObj.c (Tcl_NewObj): added conditional code for
-	USE_THREAD_ALLOC; objects allocated through Tcl_NewObj() were
-	otherwise being leaked. [Bug 587488] reported by Sven Sass.
-
-2002-08-06  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclInt.decls:
-	* unix/tclUnixThrd.c: Added stubs and implementations for
-	non-threaded build for the tclUnixThrd.c procs TclpReaddir,
-	TclpLocaltime, TclpGmtime and TclpInetNtoa. Fixes link errors in
-	stubbed & threaded extensions that include tclUnixPort.h and use any
-	of the procs readdir, localtime, gmtime or inet_ntoa (e.g. TclX 8.4)
-	[Bug 589526]
-	* generic/tclIntPlatDecls.h:
-	* generic/tclStubInit.c: Regen.
-
-2002-08-05  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl:	The setup and cleanup scripts are now
-	* library/tcltest/pkgIndex.tcl:	skipped when a test is skipped, fixing
-	* tests/tcltest.test:		[Bug 589859]. Test for bug added, and
-	corrected tcltest package bumped to version 2.2.
-
-	* generic/tcl.decls:	Restored Tcl_Concat to return (char *). Like
-	* generic/tclDecls.h:	Tcl_Merge, it transfers ownership of a dynamic
-	* generic/tclUtil.c:	allocated string to the caller.
-
-2002-08-04  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/CmdCmplt.3:	Applied Patch 585105 to fully CONST-ify all
-	* doc/Concat.3:		remaining public interfaces of Tcl. Notably,
-	* doc/CrtCommand.3:	the parser no longer writes on the string it
-	* doc/CrtSlave.3:	is parsing, so it is no longer necessary for
-	* doc/CrtTrace.3:	Tcl_Eval() to be given a writable string. Also
-	* doc/Eval.3:		the refactoring of the Tcl_*Var* routines by
-	* doc/ExprLong.3:	by Miguel Sofer is included, so that the
-	* doc/LinkVar.3:	"part1" argument for them no longer needs to
-	* doc/ParseCmd.3:	be writable either.
-	* doc/SetVar.3:
-	* doc/TraceVar.3:
-	* doc/UpVar.3:		Compatibility support has been enhanced so
-	* generic/tcl.decls:	that a #define of USE_NON_CONST will remove
-	* generic/tcl.h:	all possible source incompatibilities with the
-	* generic/tclBasic.c:	8.3 version of the header file(s). The new
-	* generic/tclCmdMZ.c:	#define of USE_COMPAT_CONST now does what
-	* generic/tclCompCmds.c:USE_NON_CONST used to do -- disable only those
-	* generic/tclCompExpr.c:new CONST's that introduce irreconcilable
-	* generic/tclCompile.c:	incompatibilities.
-	* generic/tclCompile.h:
-	* generic/tclDecls.h:	Several bugs are also fixed by this patch.
-	* generic/tclEnv.c:	[Bugs 584051,580433] [Patches 585105,582429]
-	* generic/tclEvent.c:
-	* generic/tclInt.decls:
-	* generic/tclInt.h:
-	* generic/tclIntDecls.h:
-	* generic/tclInterp.c:
-	* generic/tclLink.c:
-	* generic/tclObj.c:
-	* generic/tclParse.c:
-	* generic/tclParseExpr.c:
-	* generic/tclProc.c:
-	* generic/tclTest.c:
-	* generic/tclUtf.c:
-	* generic/tclUtil.c:
-	* generic/tclVar.c:
-	* mac/tclMacTest.c:
-	* tests/expr-old.test:
-	* tests/parseExpr.test:
-	* unix/tclUnixTest.c:
-	* unix/tclXtTest.c:
-	* win/tclWinTest.c:
-
-2002-08-01  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c: bugfix (reading freed memory). Testsuite
-	passed on linux/i386, compile-13.1 hung on linux/alpha.
-
-2002-08-01  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c: added a reference count for the complete
-	execution stack, instead of Tcl_Preserve/Tcl_Release.
-
-2002-08-01  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tclCkalloc.c (TclFinalizeMemorySubsystem): Don't lock the
-	ckalloc mutex before invoking the Tcl_DumpActiveMemory function since
-	it also locks the same mutex. This code is only executed when "memory
-	onexit filename" has been executed and Tcl is compiled with
-	-DTCL_MEM_DEBUG.
-
-2002-08-01  Reinhard Max  <max@suse.de>
-
-	* win/tclWinPort.h: The windows headers don't provide socklen_t, so we
-	have to do it.
-
-2002-07-31  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclInt.h (USE_THREAD_ALLOC): for unshared objects,
-	TclDecrRefCount now frees the internal rep before the string rep -
-	just like the non-macro Tcl_DecrRefCount/TclFreeObj [Bug 524802]. For
-	the other allocators the fix was done on 2002-03-06.
-
-2002-07-31  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclInterp.c: signed/unsigned comparison warning fixed
-	(Vince Darley).
-
-2002-07-31  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* unix/tcl.m4 (SC_BUGGY_STRTOD): Enabled caching of test results.
-
-	* unix/tcl.m4 (SC_BUGGY_STRTOD): Solaris 2.8 still has a buggy
-	strtod() implementation; make sure we detect it.
-
-	* tests/expr.test (expr-22.*): Marked as non-portable because it seems
-	that these tests have an annoying tendency to fail in unexpected ways.
-	[Bugs 584825, 584950, 585986]
-
-2002-07-30  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* tests/io.test:
-	* generic/tclIO.c (WriteChars): Added flag to break out of loop if
-	nothing of the input is consumed at all, to prevent infinite looping
-	of called with a non-UTF-8 string. Fixes Bug 584603 (partially). Added
-	new test "io-60.1". Might need additional changes to Tcl_Main so that
-	unprintable results are printed as binary data.
-
-2002-07-29  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/Makefile.in: Use CC_SEARCH_FLAGS instead of LD_SEARCH_FLAGS
-	when linking with ${CC}.
-	* unix/configure: Regen.
-	* unix/configure.in: Don't subst CC_SEARCH_FLAGS or LD_SEARCH_FLAGS
-	since this is now done in tcl.m4.
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): Document and set CC_SEARCH_FLAGS
-	whenever LD_SEARCH_FLAGS is set. [Patch 588290]
-
-2002-07-29  Reinhard Max  <max@suse.de>
-
-	* unix/tcl.m4 (SC_SERIAL_PORT): Fixed detection for cases when
-                                        configure's stdin is not a tty.
-
-	* unix/tclUnixPort.h:
-	* generic/tclIOSock.c:          Changed size_t to socklen_t in
-                                        socket-related function calls.
-
-	* unix/configure.in:            Added test and fallback definition
-                                        for socklen_t.
-
-	* unix/configure:               generated.
-
-2002-07-29  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclObj.c: fixed a comment
-
-	* generic/tcl.h:
-	* generic/tclBasic.c:
-	* generic/tclInterp.c: added the new flag TCL_EVAL_INVOKE to the
-	interface of the Tcl_Eval* functions, removing the
-	TCL_EVAL_NO_TRACEBACK added yesterday: alias invocations not only
-	require no tracebacks, but also look up the command name in the global
-	scope - see new test interp-9.4
-	* tests/interp.test: added 9.3 to test for safety of aliases to hidden
-	commands, 9.4 to test for correct command lookup scope.
-
-2002-07-29  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/regc_locale.c (cclass): [[:xdigit:]] is only a defined
-	concept on western characters, so should not allow any unicode digit,
-	and hence number of ranges in [[:xdigit:]] is fixed.
-	* tests/reg.test: Added test to detect the bug.
-	* generic/regc_cvec.c (newcvec): Corrected initial size value in
-	character vector structure. [Bug 578363] Many thanks to
-	pvgoran@users.sf.net for tracking this down.
-
-2002-07-28  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tcl.h:
-	* generic/tclBasic.c: added the new flag TCL_EVAL_NO_TRACEBACK to the
-	interface of the Tcl_Eval* functions. Modified the error message for
-	too many nested evaluations.
-	* generic/tclInterp.h: changed the Alias struct to be of variable
-	length and store the prefix arguments directly (instead of a pointer
-	to a Tcl_Obj list). Made AliasObjCmd call Tcl_EvalObjv instead of
-	TclObjInvoke - thus making aliases trigger execution traces [Bug
-	582522].
-	* tests/interp.test:
-	* tests/stack.test: adapted to the new error message.
-	* tests/trace.test: added tests for aliases firing the exec traces.
-
-2002-07-27  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/Makefile.in: Revert fix for Tcl bug 529801 since it was
-	incorrect and broke the build on other systems. Fix [Bug 587299]. Add
-	MAJOR_VERSION, MINOR_VERSION, PATCH_LEVEL, SHLIB_LD_FLAGS,
-	SHLIB_LD_LIBS, CC_SEARCH_FLAGS, LD_SEARCH_FLAGS, and LIB_FILE
-	variables to support more generic library build/install rules.
-	* unix/configure: Regen.
-	* unix/configure.in: Move AC_PROG_RANLIB into tcl.m4. Move shared
-	build test and setting of MAKE_LIB and MAKE_STUB_LIB into tcl.m4. Move
-	subst of a number of variables into tcl.m4 where they are defined.
-	* unix/tcl.m4 (SC_ENABLE_SYMBOLS, SC_CONFIG_CFLAGS): Subst vars where
-	they are defined. Add MAKE_LIB, MAKE_STUB_LIB, INSTALL_LIB, and
-	INSTALL_STUB_LIB rules to deal with the ugly details of running ranlib
-	on static libs at build and install time. Replace TCL_SHLIB_LD_EXTRAS
-	with SHLIB_LD_FLAGS and use it when building a shared library.
-	* unix/tclConfig.sh.in: Add TCL_CC_SEARCH_FLAGS.
-
-2002-07-26  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c: fixed Tcl_Obj leak in code corresponding to
-	the macro NEXT_INST_V(x, 0, 1) [Bug 587495].
-
-2002-07-26  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclVar.c (TclObjLookupVar): leak fix and improved comments.
-
-2002-07-26  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclVar.c (TclLookupVar): removed early returns that
-	prevented the parens from being restored. Also removed goto label as
-	it was not necessary.
-
-2002-07-24  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c:
-	* tests/expr-old.test: fix for erroneous error messages in [expr],
-	[Bug 587140] reported by Martin Lemburg.
-
-2002-07-25  Joe English  <jenglish@users.sourceforge.net>
-
-	* generic/tclProc.c: fix for [Tk Bug 219218] "error handling with
-	bgerror in Tk"
-
-2002-07-24  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c: restoring full TCL_COMPILE_DEBUG
-	functionality.
-
-2002-07-24  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/unixInit.test: relaxed unixInit-3.1 to accept iso8859-15 as a
-	valid C encoding. [Bug 575336]
-
-2002-07-24  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c: restoring the tcl_traceCompile functionality
-	while I repair tcl_traceExec. The core now compiles and runs also
-	under TCL_COMPILE_DEBUG, but execution in the bytecode engine can
-	still not be traced.
-
-2002-07-24  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/Makefile.in:
-	* unix/configure.in: corrected fix for [Bug 529801]: ranlib only
-	needed for static builds on Mac OS X.
-	* unix/configure: Regen.
-	* unix/tclLoadDyld.c: fixed small bugs introduced by Vince,
-	implemented library unloading correctly (needs OS X 10.2).
-
-2002-07-23  Joe English  <jenglish@users.sourceforge.net>
-
-	* doc/OpenFileChnl.3: (Updates from Larry Virden)
-	* doc/open.n:
-	* doc/tclsh.1: Fix section numbers in Unix man page references.
-	* doc/lset.n:  In EXAMPLES section, include command to set the initial
-	value used in subsequent examples.
-	* doc/http.n: Package version updated to 2.4.
-
-2002-07-23  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure: Regen.
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): Enable 64 bit compilation when using
-	the native compiler on a 64 bit version of IRIX. [Bug 219220]
-
-2002-07-23  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/Makefile.in: Combine ranlib tests and avoid printing unless
-	ranlib is actually run.
-
-2002-07-23  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/tcl.m4 (SC_PATH_X): Set XINCLUDES to "" instead of "# no
-	special path needed" or "# no include files found" when x headers
-	cannot be located.
-
-2002-07-22  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclIOUtil.c: made tclNativeFilesystem static (since 07-19
-	changes removed its usage elsewhere), and added comments about its
-	usage.
-	* generic/tclLoad.c:
-	* generic/tcl.h:
-	* generic/tcl.decls:
-	* doc/FileSystem.3: converted last load-related ClientData parameter
-	to Tcl_LoadHandle opaque structure, removing a couple of casts in the
-	process.
-
-	* generic/tclInt.h: removed tclNativeFilesystem declaration since it
-	is now static again.
-
-2002-07-22  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/expr.test (expr-22.*): Added tests to help detect the
-	corrected handling.
-	* generic/tclExecute.c (IllegalExprOperandType): Improved error
-	message generated when attempting to manipulate Inf and NaN values.
-	* generic/tclParseExpr.c (GetLexeme): Allowed parser to recognise
-	'Inf' as a floating-point number. [Bug 218000]
-
-2002-07-21  Don Porter  <dgp@users.sourceforge.net>
-
-	* tclIOUtil.c: Silence compiler warning. [Bug 584408].
-
-2002-07-19  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclIOUtil.c: fix to GetFilesystemRecord
-	* win/tclWinFile.c:
-	* unix/tclUnixFile.c: fix to subtle problem with links shown up by
-	latest tclkit builds.
-
-2002-07-19  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure:
-	* unix/configure.in:
-	* win/configure:
-	* win/configure.in: Add AC_PREREQ(2.13) in an attempt to make it more
-	clear that the configure scripts must be generated with autoconf
-	version 2.13. [Bug 583573]
-
-2002-07-19  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* unix/Makefile.in: fix to build on MacOS X [Bug 529801], bug report
-	and fix from jcw.
-
-2002-07-19  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* win/tclWinSerial.c (no_timeout): Made this variable static.
-
-	* generic/tclExecute.c, generic/tclCompile.c, generic/tclBasic.c:
-	* generic/tclCompile.h (builtinFuncTable, instructionTable): Added
-	prefix to these symbols because they are visible outside the Tcl
-	library.
-
-	* generic/tclCompExpr.c (operatorTable):
-	* unix/tclUnixTime.c (tmKey):
-	* generic/tclIOUtil.c (theFilesystemEpoch, filesystemWantToModify,
-	filesystemIteratorsInProgress, filesystemOkToModify): Made these
-	variables static.
-
-	* unix/tclUnixFile.c:		Renamed nativeFilesystem to
-	* win/tclWinFile.c:		tclNativeFilesystem and declared
-	* generic/tclIOUtil.c:		it properly in tclInt.h
-	* generic/tclInt.h:
-
-	* generic/tclUtf.c (totalBytes): Made this array static and const.
-
-	* generic/tclParse.c (typeTable): Made this array static and const.
-	(Tcl_ParseBraces): Simplified error handling case so that scans are
-	only performed when needed, and flags are simpler too.
-
-	* license.terms: Added AS to list of copyright holders; it's only
-	fair for the current gatekeepers to be listed here!
-
-	* tests/cmdMZ.test: Renamed constraint for clarity. [Bug 583427]
-	Added tests for the [time] command, which was previously only
-	indirectly tested!
-
-2002-07-18  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclInt.h:
-	* generic/tcl.h:
-	* */*Load*.c: added comments on changes of 07/17 and replaced
-	clientData with Tcl_LoadHandle in all locations.
-
-	* generic/tclFCmd.c:
-	* tests/fileSystem.test: fixed a 'knownBug' with 'file attributes ""'
-	* tests/winFCmd.test:
-	* tests/winPipe.test:
-	* tests/fCmd.test:
-	* tessts/winFile.test: added 'pcOnly' constraint to some tests to make
-	for more useful 'tests skipped' log from running all tests on
-	non-Windows platforms.
-
-2002-07-17  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclBasic.c (CallCommandTraces): delete traces now receive
-	the FQ old name of the command. [Bug 582532] (Don Porter)
-
-2002-07-18  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* tests/ioUtil.test: added constraints to 1.4,2.4 so they don't run
-	outside of tcltest. [Bugs 583276, 583277]
-
-2002-07-17  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclVar.c (DupParsedVarName): nasty bug fixed, reported by
-	Vince Darley.
-
-2002-07-17  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclVar.c (TclPtrIncrVar): missing CONST in declarations,
-	inconsistent with tclInt.h. Thanks to Vince Darley for reporting, boo
-	to gcc for not complaining.
-
-2002-07-17  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclInt.h:
-	* generic/tclIOUtil.c:
-	* generic/tclLoadNone.c:
-	* unix/tclLoadAout.c:
-	* unix/tclLoadDl.c:
-	* unix/tclLoadDld.c:
-	* unix/tclLoadDyld.c:
-	* unix/tclLoadNext.c:
-	* unix/tclLoadOSF.c:
-	* unix/tclLoadShl.c:
-	* mac/tclMacLoad.c:
-	* win/tclWinLoad.c: modified to move more functionality to the generic
-	code and avoid duplication. Partial replacement of internal uses of
-	clientData with opaque Tcl_LoadHandle. A little further work still
-	needed, but significant changes are done.
-
-2002-07-17  D. Richard Hipp    <drh@hwaci.com>
-
-	* library/msgcat/msgcat.tcl: fix a comment that was causing problems
-	for programs (ex: mktclapp) that embed the initialization scripts in
-	strings.
-
-2002-07-17  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclInt.decls:
-	* generic/tclIntDecls.h:
-	* generic/tclStubInit.c:
-	* generic/tclVar.c: removing the now redundant functions to access
-	indexed variables: Tcl(Get|Set|Incr)IndexedScalar() and
-	Tcl(Get|Set|Incr)ElementOfIndexedArray().
-
-2002-07-17  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclExecute.c (TclExecuteByteCode): Minor fixes to make this
-	file compile with SunPro CC...
-
-2002-07-17  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c: modified to do variable lookup explicitly, and
-	then either inlining the variable access or else calling the new
-	TclPtr(Set|Get|Incr)Var functions in tclVar.c
-	* generic/tclInt.h: declare some functions previously local to
-	tclVar.c for usage by TEBC.
-	* generic/tclVar.c: removed local declarations; moved all special
-	accessor functions for indexed variables to the end of the file -
-	they are unused and ready for removal, but left there for the time
-	being as they are in the internal stubs table.
-
-	** WARNING FOR BYTECODE MAINTAINERS **
-	TCL_COMPILE_DEBUG is currently not functional; will be fixed ASAP.
-
-2002-07-16  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/Makefile.in:
-	* win/Makefile.in: Add a more descriptive warning in the event `make
-	genstubs` needs to be rerun.
-
-2002-07-16  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/Makefile.in: Use dltest.marker file to keep track of when the
-	dltest package is up to date. This fixes [Bug 575768] since tcltest is
-	no longer linked every time.
-	* unix/dltest/Makefile.in: Create ../dltest.marker after a successful
-	`make all` run in dltest.
-
-2002-07-16  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure: Regen.
-	* unix/configure.in: Remove useless subst of TCL_BIN_DIR.
-
-2002-07-15  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclVar.c: inaccurate comment fixed
-
-2002-07-15  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclBasic.c (Tcl_AddObjErrorInfo):
-	* generic/tclExecute.c (TclUpdateReturnInfo):
-	* generic/tclInt.h:
-	* generic/tclProc.c:
-	Added two Tcl_Obj to the ExecEnv structure to hold the fully qualified
-	names "::errorInfo" and "::errorCode" to cache the addresses of the
-	corresponding variables. The two most frequent setters of these
-	variables now profit from the new variable name caching.
-
-2002-07-15  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclVar.c: refactorisation to reuse already looked-up Var
-	pointers; definition of three new Tcl_Obj types to cache variable name
-	parsing and lookup for later reuse; modification of internal functions
-	to profit from the caching.
-
-	* generic/tclInt.decls:
-	* generic/tclInt.h:
-	* generic/tclIntDecls.h:
-	* generic/tclNamesp.c: adding CONST qualifiers to variable names
-	passed to Tcl_FindNamespaceVar and to variable resolvers; adding CONST
-	qualifier to the 'msg' argument to TclLookupVar. Needed to avoid code
-	duplication in the new tclVar.c code.
-
-	* tests/set-old.test:
-	* tests/var.test: slight modification of error messages due to the
-	modifications in the tclVar.c code.
-
-2002-07-15  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/unixInit.test:	Improved constraints to protect /tmp. [Bug
-	581403]
-
-2002-07-15  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* tests/winFCmd.test: renamed 'win2000' and 'notWin2000' to more
-	appropriate constraint names.
-	* win/tclWinFile.c: updated comments to reflect 07-11 changes.
-	* win/tclWinFCmd.c: made ConvertFileNameFormat static again, since no
-	longer used in tclWinFile.c
-	* mac/tclMacFile.c: completed TclpObjLink implementation which was
-	previously lacking.
-	* generic/tclIOUtil.c: comment cleanup and code speedup.
-
-2002-07-14  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclInt.h:	Removed declarations that duplicated entries
-	in the (internal) stub table.
-
-	* library/tcltest/tcltest.tcl:  Corrected errors in handling of
-	configuration options -constraints and -limitconstraints.
-
-	* README:		Bumped HEAD to version 8.4b2 so we can
-	* generic/tcl.h:	distinguish it from the 8.4b1 release.
-	* tools/tcl.wse.in:
-	* unix/configure*:
-	* unix/tcl.spec:
-	* win/README.binary:
-	* win/configure*:
-
-2002-07-11  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* doc/file.n:
-	* win/tclWinFile.c: on Win 95/98/ME the long form of the path is used
-	as a normalized form. This is required because short forms are not a
-	robust representation. The file normalization function has been sped
-	up, but more performance gains might be possible, if speed is still an
-	issue on these platforms.
-
-2002-07-11  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl: Corrected reaction to existing but
-	false ::tcl_interactive.
-
-	* doc/Hash.3: Overlooked CONST documentation update.
-
-2002-07-11  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclCkalloc.c: ckalloc() and friends take the block size as
-	an unsigned, so we should use %ud when reporting it in fprintf() and
-	panic().
-
-2002-07-11  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCompile.c: now setting local vars undefined at compile
-	time, instead of waiting until the proc is initialized.
-	* generic/tclProc.c: use macro TclSetVarUndefined instead of directly
-	setting the flag.
-
-2002-07-11  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/cmdAH.test: [file attr -perm] is Unix-only, so add [catch]
-	when not inside a suitably-protected test.
-
-2002-07-10  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/unixFCmd.test, tests/fileName.test:
-	* tests/fCmd.test: Removed [exec] of Unix utilities that have
-	equivalents in standard Tcl. [Bug 579268] Also simplified some of
-	unixFCmd.test while I was at it.
-
-2002-07-10  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/tcltest.test:  Greatly reduced the number of [exec]s, using
-	slave interps instead.
-	* library/tcltest/tcltest.tcl:  Fixed bug uncovered in the conversion
-	where a message was written to stdout instead of [outputChannel].
-
-	* tests/basic.test:	Cleaned up, constrained, and reduced the
-	* tests/compile.test:	amount of [exec] usage in the test suite.
-	* tests/encoding.test:
-	* tests/env.test:
-	* tests/event.test:
-	* tests/exec.test:
-	* tests/io.test:
-	* tests/ioCmd.test:
-	* tests/regexp.test:
-	* tests/regexpComp.test:
-	* tests/socket.test:
-	* tests/tcltest.test:
-	* tests/unixInit.test:
-	* tests/winDde.test:
-	* tests/winPipe.test:
-
-2002-07-10  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/cmdAH.test: Removed [exec] of Unix utilities. [Bug 579211]
-
-	* tests/expr.test: Added tests to make sure that this works.
-	* generic/tclExecute.c (ExprCallMathFunc): Functions should also be
-	able to return wide-ints. [Bug 579284]
-
-2002-07-08  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* tests/socket.test: Fixed [Bug 578164]. The original reason for the
-	was a DNS outage while running the testsuite. Changed [info hostname]
-	to 127.0.0.1 to bypass DNS, knowing that we operate on the local host.
-
-2002-07-08  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/tcltest.n:		Fixed incompatibility in [viewFile].
-	* library/tcltest/tcltest.tcl:	Corrected docs. Bumped to 2.2.1.
-	* library/tcltest/pkgIndex.tcl: [Bug 578163]
-
-2002-07-08  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* tests/cmdAH.test:
-	* tests/fCmd.test:
-	* tests/fileName.test: tests which rely on 'file link' need a
-	constraint so they don't run on older Windows OS. [Bug 578158]
-	* generic/tclIOUtil.c:
-	* generic/tcl.h:
-	* generic/tclInt.h:
-	* generic/tclTest.c:
-	* mac/tclMacChan.c:
-	* unix/tclUnixChan.c:
-	* win/tclWinChan.c:
-	* doc/FileSystem.3: cleaned up internal handling of
-	Tcl_FSOpenFileChannel to remove duplicate code, and make writing
-	external vfs's clearer and easier. No functionality change. Also
-	clarify that objects with refCount zero should not be passed in to the
-	Tcl_FS API, and prevent segfaults from occuring on such user errors.
-	[Bug 578617]
-
-2002-07-06  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/pkgMkIndex.test:  Constrained tests of [load] package indexing
-	to those platforms where the testing shared libraries have been built.
-	[Bug 578166]
-
-2002-07-05  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes: added recent changes
-
-2002-07-05  Reinhard Max  <max@suse.de>
-
-	* generic/tclClock.c (FormatClock): Convert the format string to UTF8
-	before calling TclpStrftime, so that non-ASCII characters don't get
-	mangled when the result string is being converted back.
-	* tests/clock.test: Added a test for that.
-
-2002-07-05  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* unix/Makefile.in (ro-test,ddd,GDB,DDD): Created new targets to
-	allow running the test suite with a read-only current directory,
-	running under ddd instead of gdb, and factored out some executable
-	names for broken sites (like mine) where gdb and ddd are installed
-	with non-standard names...
-
-	* tests/httpold.test: Altered test names to httpold-* to avoid clashes
-	with http.test, and stopped tests from failing when the current
-	directory is not writable...
-
-	* tests/event.test:		Stop these tests from failing when the
-	* tests/ioUtil.test:		current directory is not writable...
-	* tests/regexp.test:
-	* tests/regexpComp.test:
-	* tests/source.test:
-	* tests/unixFile.test:
-	* tests/unixNotfy.test:
-
-	* tests/unixFCmd.test:		Trying to make these test-files not
-	* tests/macFCmd.test:		bomb out with an error when the
-	* tests/http.test:		current directory is not writable...
-	* tests/fileName.test:
-	* tests/env.test:
-
-2002-07-05  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	*** 8.4b1 TAGGED FOR RELEASE ***
-
-2002-07-04  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/cmdMZ.test (cmdMZ-1.4):
-	* tests/cmdAH.test: More fixing of writable-current-dir assumption.
-	[Bug 575824]
-
-2002-07-04  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* tests/basic.test: Same issue as below; fixed [Bug 575817]
-
-2002-07-04  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* tests/socket.test:
-	* tests/winPipe.test:
-	* tests/pid.test: Fixed [Bug 575848]. See below for a description the
-	general problem.
-
-	* All the bugs below are instances of the same problem: The testsuite
-	assumes [pwd] = [temporaryDirectory] and writable.
-
-	* tests/iogt.test: Fixed [Bug 575860].
-	* tests/io.test:   Fixed [Bug 575862].
-	* tests/exec.test:
-	* tests/ioCmd.test: Fixed [Bug 575836].
-
-2002-07-03  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/pkg1/direct1.tcl: removed
-	* tests/pkg1/pkgIndex.tcl: removed
-	* tests/pkgMkIndex.test:  Imported auxilliary files from tests/pkg1
-	into the test file pkgMkIndex.test itself. Formatting fixes.
-
-	* unix/Makefile.in: removed tests/pkg/* from `make dist`
-
-	* tests/pkg/circ1.tcl: removed
-	* tests/pkg/circ2.tcl: removed
-	* tests/pkg/circ3.tcl: removed
-	* tests/pkg/global.tcl: removed
-	* tests/pkg/import.tcl: removed
-	* tests/pkg/pkg1.tcl: removed
-	* tests/pkg/pkg2_a.tcl: removed
-	* tests/pkg/pkg2_b.tcl: removed
-	* tests/pkg/pkg3.tcl: removed
-	* tests/pkg/pkg4.tcl: removed
-	* tests/pkg/pkg5.tcl: removed
-	* tests/pkg/pkga.tcl: removed
-	* tests/pkg/samename.tcl: removed
-	* tests/pkg/simple.tcl: removed
-	* tests/pkg/spacename.tcl: removed
-	* tests/pkg/std.tcl: removed
-	* tests/pkgMkIndex.test: Fixed [Bug 575857] where this test file
-	expected to be able to write to [file join [testsDirectory] pkg]. Part
-	of the fix was to import several auxilliary files into the test file
-	itself.
-
-	* tests/main.test:	Cheap fix for [Bugs 575851, 575858]. Avoid
-	* tests/tcltest.test:	non-writable . by [cd [temporaryDirectory]].
-
-	* library/auto.tcl: Fix [tcl_findLibrary] to be sure it sets $varName
-	only if a successful library script is found. [Bug 577033]
-
-2002-07-03  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCompCmds.c (TclCompileCatchCmd): return
-	TCL_OUT_LINE_COMPILE instead of TCL_ERROR: let the failure happen at
-	runtime so that it can be caught [Bug 577015].
-
-2002-07-02  Joe English  <jenglish@users.sourceforge.net>
-
-	* doc/tcltest.n: Markup fixes, spellcheck.
-
-2002-07-02  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/tcltest.n: more refinements of the documentation.
-
-	* library/tcltest/tcltest.tcl: Added trace to be sure the stdio
-	constraint is updated whenever the [interpreter] changes.
-
-	* doc/tcltest.n:		Reverted [makeFile] and [viewFile] to
-	* library/tcltest/tcltest.tcl:	their former behavior, and documented
-	* tests/cmdAH.test:		it. Corrected misspelling of hook
-	* tests/event.test:		procedure. Restored tests.
-	* tests/http.test:
-	* tests/io.test:
-
-	* library/tcltest/tcltest.tcl: Simplified logic of [GetMatchingFiles]
-	and [GetMatchingDirectories], removing special case processing.
-
-	* doc/tcltest.n: More documentation updates. Reference sections are
-	complete. Only examples need adding.
-
-2002-07-02  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* tests/fCmd.test:
-	* generic/tclCmdAH.c: clearer error msgs for 'file link', as per the
-	man page.
-
-2002-07-01  Joe English  <jenglish@users.sourceforge.net>
-
-	* doc/Access.3:
-	* doc/AddErrInfo.3:
-	* doc/Alloc.3:
-	* doc/Backslash.3:
-	* doc/CrtChannel.3:
-	* doc/CrtSlave.3:
-	* doc/Encoding.3:
-	* doc/Eval.3:
-	* doc/FileSystem.3:
-	* doc/Notifier.3:
-	* doc/OpenFileChnl.3:
-	* doc/ParseCmd.3:
-	* doc/RegExp.3:
-	* doc/Tcl_Main.3:
-	* doc/Thread.3:
-	* doc/TraceCmd.3:
-	* doc/Utf.3:
-	* doc/WrongNumArgs.3:
-	* doc/binary.n:
-	* doc/clock.n:
-	* doc/expr.n:
-	* doc/fconfigure.n:
-	* doc/glob.n:
-	* doc/http.n:
-	* doc/interp.n:
-	* doc/lsearch.n:
-	* doc/lset.n:
-	* doc/msgcat.n:
-	* doc/packagens.n:
-	* doc/pkgMkIndex.n:
-	* doc/registry.n:
-	* doc/resource.n:
-	* doc/safe.n:
-	* doc/scan.n:
-	* doc/tclvars.n:  Spell-check, fixed typos (Updates from Larry Virden).
-
-2002-07-01  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): Made Solaris use gcc for linking
-	when building with gcc to resolve problems with undefined symbols
-	being present when tcl library used with non-gcc linker at later
-	stage. Symbols were compiler-generated, so it is the compiler's
-	business to define them. [Bug 541181]
-
-2002-07-01  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/tcltest.n: more work in progress updating tcltest docs.
-
-	* library/tcltest/tcltest.tcl: Change [configure -match] to stop
-	treating an empty list as a list of the single pattern "*". Changed
-	the default value to [list *] so default operation remains the same.
-
-	* tests/pkg/samename.tcl: restored. needed by pkgMkIndex.test.
-
-	* library/tcltest/tcltest.tcl: restored writeability testing of
-	-tmpdir, augmented by a special exception for the deafault value.
-
-2002-07-01  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/concat.n: Documented the *real* behaviour of [concat]!
-
-2002-06-30  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/tcltest.n: more work in progress updating tcltest docs.
-
-	* tests/README:		Updated the instructions on running and
-	* tests/cmdMZ.test:	adding to the test suite. Also updated
-	* tests/encoding.test:	several tests, mostly to correctly create
-	* tests/fCmd.test:	and destroy any temporary files in the
-	* tests/info.test:	[temporaryDirectory] of tcltest.
-	* tests/interp.test:
-
-	* library/tcltest/tcltest.tcl:	Stopped checking for writeability of
-	-tmpdir value because no default directory can be guaranteed to be
-	writeable.
-
-	* tests/autoMkindex.tcl: removed.
-	* tests/pkg/samename.tcl: removed.
-	* tests/pkg/magicchar.tcl: removed.
-	* tests/pkg/magicchar2.tcl: removed.
-	* tests/autoMkindex.test: Updated auto_mkIndex tests to use [makeFile]
-	and [removeFile] so tests are done in [temporaryDirecotry] where write
-	access is guaranteed.
-
-	* library/tcltest/tcltest.tcl:	Fixed [makeFile] and [viewFile] to
-	* tests/cmdAH.test:		accurately reflect a file's contents.
-	* tests/event.test:		Updated tests that depended on buggy
-	* tests/http.test:		behavior. Also added warning messages
-	* tests/io.test:		to "-debug 1" operations to debug test
-	* tests/iogt.test:		calls to (make|remove)(File|Directory)
-
-	* unix/mkLinks: `make mklinks` on 6-27 commits.
-
-2002-06-28  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCompile.h: modified the macro TclEmitPush to not call its
-	first argument repeatedly or pass it to other macros, [Bug 575194]
-	reported by Peter Spjuth.
-
-2002-06-28  Don Porter  <dgp@users.sourceforge.net>
-
-	* docs/tcltest.n:	Doc revisions in progress.
-	* library/tcltest/tcltest.tcl: Corrected -testdir default value. Was
-	not reliable, and disagreed with docs! Thanks to Hemang Lavana. [Bug
-	575150]
-
-2002-06-28  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* unix/tclUnixThrd.c:	Renamed the Tcl_Platform* #defines to TclOS*
-	* unix/tclUnixPipe.c:	because they are only used internally. Also
-	* unix/tclUnixFile.c:	stopped double-#def of TclOSlstat [Bug 566099,
-	* unix/tclUnixFCmd.c:	post-rename]
-	* unix/tclUnixChan.c:
-	* unix/tclUnixPort.h:
-
-	* doc/string.n: Improved documentation for [string last] along lines
-	described in [Bug 574799] so it indicates that the supplied index
-	marks the end of the search space.
-
-2002-06-27  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/dde.n:		Work in progress updating the documentation
-	* doc/http.n:		of the packages that come bundled with
-	* doc/msgcat.n:		the Tcl source distribution, notably tcltest.
-	* doc/registry.n:
-	* doc/tcltest.n:
-
-	* library/tcltest/tcltest.tcl:  Made sure that the TCLTEST_OPTIONS
-	environment variablle configures tcltest at package load time.
-
-2002-06-26  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* tests/fileSystem.test:
-	* generic/tclIOUtil.c: fix to handling of empty paths "" which are not
-	claimed by any filesystem [Bug 573758]. Ensure good error messages
-	are given in all cases.
-	* tests/cmdAH.test:
-	* unix/tclUnixFCmd.c: fix to bug reported as part of [Patch 566669].
-	Thanks to Taguchi, Takeshi for the report.
-
-2002-06-26  Reinhard Max  <max@suse.de>
-
-	* unix/tclUnixTime.c: Make [clock format] respect locale settings.
-	* tests/clock.test:   [Bug 565880]. ***POTENTIAL INCOMPATIBILITY***
-
-2002-06-26  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* doc/CrtInterp.3:
-	* doc/StringObj.3: clarifications by Don Porter, [Bug 493995] and [Bug
-	500930].
-
-2002-06-24  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl:	Corrected suppression of -verbose skip
-	* tests/tcltest.test:		and start by [test -output]. Also
-	corrected test suite errors exposed by corrected code. [Bug 564656]
-
-2002-06-25  Reinhard Max  <max@suse.de>
-
-	* unix/tcl.m4:       New macro SC_CONFIG_MANPAGES.
-	* unix/configure.in: Added support for symlinks and compression when
-	* unix/Makefile.in:  installing the manpages. [Patch 518052]
-	* unix/mkLinks.tcl:  Default is still hardlinks and no compression.
-
-	* unix/mkLinks:      generated
-	* unix/configure:
-
-	* unix/README:       Added documentation for the new features.
-
-	* unix/tcl.m4 (SC_PATH_TCLCONFIG): Replaced ${exec_prefix}/lib by
-	${libdir}.
-
-2002-06-25  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclUtil.c (TclGetIntForIndex): Fix of critical [Bug 533364]
-	generated when the index is bad and the result is a shared object. The
-	T_ASTO(T_GOR, ...) idiom likely exists elsewhere though. Also removed
-	some cruft that just complicated things to no advantage.
-	(SetEndOffsetFromAny): Same fix, though this wasn't on the path
-	excited by the bug.
-
-2002-06-24  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl:	Implementation of TIP 101. Adds abd
-	* tests/parseOld.test:		exports a [configure] command from
-	* tests/tcltest.test:		tcltest.
-
-2002-06-22  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes: updated changes file for 8.4b1 release.
-
-	* library/tcltest/tcltest.tcl:	Corrections to tcltest and the Tcl
-	* tests/basic.test:		test suite so that a test with options
-	* tests/cmdInfo.test:		-constraints knownBug
-	* tests/compile.test:		-limitConstraints 1 only tests the
-	* tests/encoding.test:		knownBug tests. Mostly involves
-	* tests/env.test:		replacing direct access to the
-	* tests/event.test:		testConstraints array with calls to
-	* tests/exec.test:		the testConstraint command (which
-	* tests/execute.test:		requires tcltest version 2)
-	* tests/fCmd.test:
-	* tests/format.test:
-	* tests/http.test:
-	* tests/httpold.test:
-	* tests/ioUtil.test:
-	* tests/link.test:
-	* tests/load.test:
-	* tests/namespace.test:
-	* tests/pkgMkIndex.test:
-	* tests/reg.test:
-	* tests/result.test:
-	* tests/scan.test:
-	* tests/stack.test:
-
-2002-06-22  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tools/tcl.wse.in (Disk Label), unix/tcl.spec (version):
-	* win/README.binary, README, win/configure.in, unix/configure.in:
-	* generic/tcl.h (TCL_RELEASE_*, TCL_PATCH_LEVEL): Bump to beta1.
-
-2002-06-21  Joe English  <jenglish@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:
-	* generic/tclParseExpr.c: LogSyntaxError() should reset the
-	interpreter result [Bug 550142 "Tcl_ExprObj -> abort"]
-
-2002-06-21  Don Porter  <dgp@users.sourceforge.net>
-
-	* unix/Makefile.in:	Updated all package install directories
-	* win/Makefile.in:	to match current Major.minor versions
-	* win/makefile.bc:	of the packages. Added tcltest package
-	* win/makefile.vc:	to installation on Windows.
-
-	* library/init.tcl:  Corrected comments and namespace style issues.
-	Thanks to Bruce Stephens. [Bug 572025]
-
-2002-06-21  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* tests/cmdAH.test:          Added TIP#99 implementation of 'file
-	* tests/fCmd.test:           link'. Supports creation of symbolic and
-	* tests/fileName.test:       hard links in the native filesystems and
-	* tests/fileSystem.test:     in vfs's, when the individual filesystem
-	* generic/tclTest.c:         supports the concept.
-	* generic/tclCmdAH.c:
-	* generic/tclIOUtil.c:
-	* generic/tcl.h:
-	* generic/tcl.decls:
-	* doc/FileSystem.3:
-	* doc/file.n:
-	* mac/tclMacFile.c:
-	* unix/tclUnixFile.c:
-	* win/tclWinFile.c: Also enhanced speed of 'file normalize' on
-	Windows.
-
-2002-06-20  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclBasic.c (TclEvalObjvInternal): fix for [Bug 571385] in
-	the implementation of TIP#62 (command tracing). Vince Darley, Hemang
-	Lavana & Don Porter: thanks.
-
-2002-06-20  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c (TclCompEvalObj): clarified and simplified the
-	logic for compilation/recompilation.
-
-2002-06-19  Joe English  <jenglish@users.sourceforge.net>
-
-	* doc/file.n: Fixed indentation. No substantive changes.
-
-2002-06-19  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclCmdMZ.c (Tcl_RegexpObjCmd): get the resultPtr again as
-	the Tcl_ObjSetVar2 may cause the result to change. [Patch 558324]
-	(watson)
-
-2002-06-19  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c (TEBC): removing unused "for(;;)" loop;
-	improved comments; re-indentation.
-
-2002-06-18  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c (TEBC):
-	- elimination of duplicated code in the non-immediate INST_INCR
-	  instructions.
-	- elimination of 103 (!) TclDecrRefCount macros. The different
-	  instructions now jump back to a common "DecrRefCount zone" at the
-	  top of the loop. The macro "ADJUST_PC" was replaced by two macros
-	  "NEXT_INST_F" and "NEXT_INST_V" that take three params
-	  (pcAdjustment, # of stack objects to discard, resultObjPtr handling
-	  flag). The only instructions that retain a TclDecrRefCount are
-	  INST_POP (for speed), the common code for the non-immediate
-	  INST_INCR, INST_FOREACH_STEP and the two INST_LSET.
-
-	The object size of tclExecute.o was reduced by approx 20% since the
-	start of the consolidation drive, while making room for some peep-hole
-	optimisation at runtime.
-
-2002-06-18  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c (TEBC, INST_DONE): small bug in the panic code
-	for tcl-stack corruption.
-
-2002-06-17  David Gravereaux <davygrvy@pobox.com>
-
-	Trims to support the removal of RESOURCE_INCLUDED from rc scripts from
-	[FRQ 565088].
-
-	* generic/tcl.h: moved the #ifndef RC_INVOKED start block up in the
-	file. rc scripts don't need to know thread mutexes.
-
-	* win/tcl.rc:
-	* win/tclsh.rc: removed the #define RESOURCE_INCLUDED to let the
-	built-in -DRC_INVOKED to the work.
-
-2002-06-17  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* doc/CrtTrace.3:        Added TIP#62 implementation of command
-	* doc/trace.n:           execution tracing [FRQ 462580] (lavana).
-	* generic/tcl.h:         This includes enter/leave tracing as well
-	* generic/tclBasic.c:    as inter-procedure stepping.
-	* generic/tclCmdMZ.c:
-	* generic/tclCompile.c:
-	* generic/tclExecute.c:
-	* generic/tclInt.decls:
-	* generic/tclInt.h:
-	* generic/tclIntDecls.h:
-	* generic/tclStubInit.c:
-	* generic/tclVar.c:
-	* tests/trace.test:
-
-2002-06-17  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* win/tclWinPipe.c (BuildCommandLine): Fixed [Bug 554068] ([exec] on
-	windows did not treat { in filenames well.). Bug reported by Vince
-	Darley <vincentdarley@users.sourceforge.net>, patch provided by Vince
-	too.
-
-2002-06-17  Joe English  <jenglish@users.sourceforge.net>
-
-	* generic/tcl.h: #ifdef logic for K&R C backwards compatibility
-	changed to assume modern C by default. See [FRQ 565088] for full
-	details.
-
-2002-06-17  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/msgcat.n: Corrected en_UK references to en_GB. UK is not a
-	country designation recognized in ISO 3166.
-
-	* library/msgcat/msgcat.tcl:  More Windows Registry locale codes from
-	Bruno Haible.
-
-	* doc/msgcat.n:
-	* library/msgcat/msgcat.tcl:
-	* library/msgcat/pkgIndex.tcl:
-	* tests/msgcat.test:  Revised locale initialization to interpret
-	environment variable locale values according to XPG4, and to recognize
-	the LC_ALL and LC_MESSAGES values over that of LANG. Also added many
-	Windows Registry locale values to those recognized by msgcat. Revised
-	tests and docs. Bumped to version 1.3. Thanks to Bruno Haible for the
-	report and assistance crafting the solution. [Bug 525522, 525525]
-
-2002-06-16  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCompile.c (TclCompileTokens): a better algorithm for the
-	previous bug fix.
-
-2002-06-16  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCompile.c (TclCompileTokens):
-	* tests/compile.test: [Bug 569438] in the processing of dollar
-	variables; report by Georgios Petasis.
-
-2002-06-16  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c: bug in the consolidation of the INCR_..._STK
-	instructions; the bug could not be exercised as the (faulty)
-	instruction INST_INCR_ARRAY_STK was never compiled-in (related to [Bug
-	569438]).
-
-2002-06-14  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c (TclExecuteByteCode): runtime peep-hole
-	optimisation of variables (INST_STORE, INST_INCR) and commands
-	(INST_INVOKE); faster check for the existence of a catch.
-	(TclExecuteByteCode): runtime peep-hole optimisation of comparisons.
-	(TclExecuteByteCode): runtime peep-hole optimisation of INST_FOREACH -
-	relies on peculiarities of the code produced by the bytecode compiler.
-
-2002-06-14  David Gravereaux <davygrvy@pobox.com>
-
-	* win/rules.vc: The test for compiler optimizations was in error.
-	Thanks goes to Roy Terry <royterry@earthlink.net> for his assistance
-	with this.
-
-2002-06-14  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/trace.n, tests/trace.test:
-	* generic/tclCmdMZ.c (Tcl_TraceObjCmd,TclTraceCommandObjCmd)
-	(TclTraceVariableObjCmd): Changed references to "trace list" to
-	"trace info" as mandated by TIP#102.
-
-2002-06-13  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c (TclExecuteByteCode): consolidated code for the
-	conditional branch instructions.
-
-2002-06-13  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c (TclExecuteByteCode): fixed the previous patch;
-	wouldn't compile with TCL_COMPILE_DEBUG set.
-
-2002-06-13  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c (TclExecuteByteCode): consolidated the handling
-	of exception returns to INST_INVOKE and INST_EVAL, as well as most of
-	the code for INST_CONTINUE and INST_BREAK, in the new jump target
-	"processExceptionReturn".
-
-2002-06-13  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c (TclExecuteByteCode): consolidated variable
-	handling opcodes, replaced redundant code with some 'goto'. All
-	store/append/lappend opcodes on the same data type now share the main
-	code; same with incr opcodes.
-	* generic/tclVar.c: added the bit TCL_TRACE_READS to the possible
-	flags to Tcl_SetVar2Ex - it causes read traces to be fired prior to
-	setting the variable. This is used in the core for [lappend].
-
-	***NOTE*** the usage of TCL_TRACE_READS in Tcl_(Obj)?GetVar.* is not
-	documented; there, it causes the call to create the variable if it
-	does not exist. The new usage in Tcl_(Obj)?SetVar.* remains
-	undocumented too ...
-
-2002-06-13  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* tests/fCmd.test:
-	* tests/winFile.test:
-	* tests/fileSystem.test:
-	* generic/tclTest.c:
-	* generic/tclCmdAH.c:
-	* generic/tclIOUtil.c:
-	* doc/FileSystem.3:
-	* mac/tclMacFile.c:
-	* unix/tclUnixFile.c:
-	* win/tclWinFile.c: fixed up further so both compiles and actually
-	works with VC++ 5 or 6.
-	* win/tclWinInt.h:
-	* win/tclWin32Dll.c: cleaned up code and vfs tests and added tests for
-	the internal changes of 2002-06-12, to see whether WinTcl on NTFS can
-	coexist peacefully with links in the filesystem. Added new test
-	command 'testfilelink' to enable the newer code to be tested.
-	* tests/fCmd.test: (made certain tests of 'testfilelink' not run on
-	unix).
-
-2002-06-12  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* tclBasic.c (Tcl_DeleteTrace): fixed [Bug 568123] (thanks to Hemang
-	Lavana)
-
-2002-06-12  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/tclWinFile.c: corrected the symbolic link handling code to allow
-	it to compile. Added real definition of REPARSE_DATA_BUFFER (found in
-	winnt.h). Most of the added definitions appear to have correct,
-	cross-Win-version equivalents in winnt.h and should be removed, but
-	just making things "work" for now.
-
-2002-06-12  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclIOUtil.c:
-	* generic/tcl.decls:
-	* generic/tclDecls.h: made code for Tcl_FSNewNativePath agree with man
-	pages.
-
-	* doc/FileSystem.3: clarified the circumstances under which certain
-	functions are called in the presence of symlinks.
-
-	* win/tclWinFile.c:
-	* win/tclWinPort.h:
-	* win/tclWinInt.h:
-	* win/tclWinFCmd.c:  Fix for Windows to allow 'file lstat', 'file
-	type', 'glob -type l', 'file copy', 'file delete', 'file normalize',
-	and all VFS code to work correctly in the presence of symlinks
-	(previously Tcl's behaviour was not very well defined). This also
-	fixes possible serious problems in all versions of WinTcl where 'file
-	delete' on a NTFS symlink could delete the original, not the symlink.
-	Note: symlinks cannot yet be created in pure Tcl.
-
-2002-06-11  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclBasic.c:
-	* generic/tclCompCmds.c:
-	* generic/tclInt.h: reverted the new compilation functions; replaced
-	by a more general approach described below.
-
-	* generic/tclCompCmds.c:
-	* generic/tclCompile.c: made *all* compiled variable access attempts
-	create an indexed variable - even get or incr without previous set.
-	This allows indexed access to local variables that are created and set
-	at runtime, for example by [global], [upvar], [variable], [regexp],
-	[regsub].
-
-2002-06-11  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* doc/global.n:
-	* doc/info.n:
-	* test/info.test:
-	* generic/tclCmdIL.c: fix for [Bug 567386], [info locals] was
-	reporting some linked variables.
-
-	* generic/tclBasic.c:
-	* generic/tclCompCmds.c:
-	* generic/tclInt.h: added compile functions for [global], [variable]
-	and [upvar]. They just declare the new local variables, the commands
-	themselves are not compiled-in. This gives a notably faster read
-	access to these linked variables.
-
-2002-06-11  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c: optimised algorithm for exception range
-	lookup; part of [Patch 453709].
-
-2002-06-10  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* unix/tclUnixFCmd.c: fixed [Bug 566669]
-	* generic/tclIOUtil.c: improved and sped up handling of native paths
-	(duplication and conversion to normalized paths), particularly on
-	Windows.
-	* modified part of above commit, due to problems on Linux. Will
-	re-examine bug report and evaluate more closely.
-
-2002-06-07  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/tcltest.test:  More corrections to test suite so that tests of
-	failing [test]s don't show up themselves as failing tests.
-
-2002-06-07  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclExecute.c: Tidied up headers in relation to float.h to
-	cut the cruft and ensure DBL_MAX is defined since doubles seem to be
-	the same size everywhere; if the assumption isn't true, the variant
-	platforms had better have run configure...
-
-	* unix/tclUnixPort.h (EOVERFLOW): Added code to define it if it
-	wasn't previously defined. Also some other general tidying and adding
-	of comments. [Bugs 563122, 564595]
-	* compat/tclErrno.h: Added definition for EOVERFLOW copied from
-	Solaris headers; I've been unable to find any uses of EFTYPE, which
-	was the error code previously occupying the slot, in Tcl, or any
-	definition of it in the Solaris headers.
-
-2002-06-06  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/dltest/Makefile.in: Remove hard coded CFLAGS=-g and add
-	CFLAGS_DEBUG, CFLAGS_OPTIMIZE, and CFLAGS_DEFAULT varaibles. [Bug
-	565488]
-
-2002-06-06  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/tcltest.test:  Corrections to test suite so that tests of
-	failing [test]s don't show up themselves as failing tests.
-
-	* tests/io.test: Fixed up namespace variable resolution issues
-	revealed by running test suite with "-singleproc 1".
-
-	* doc/tcltest.n:
-	* library/tcltest/tcltest.tcl:
-	* tests/tcltest.test: Several updates to tcltest.
-	  1) changed to lazy initialization of test constraints
-	  2) deprecated [initConstraintsHook]
-	  3) repaired badly broken [limitConstraints].
-	  4) deprecated [threadReap] and [mainThread]
-	[Patch 512214, Bug 558742, Bug 461000, Bug 534903]
-
-2002-06-06  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tclUnixThrd.c (TclpReaddir, TclpLocaltime, TclpGmtime): added
-	mutex wrapped calls to readdir, localtime & gmtime in case their
-	thread-safe *_r counterparts are not available.
-	* unix/tcl.m4: added configure check for readdir_r
-	* unix/tcl.m4 (Darwin): set TCL_DEFAULT_ENCODING to utf-8 on MacOSX
-	(where posix file apis expect utf-8, not iso8859-1).
-	* unix/configure: regen
-	* unix/Makefile.in: set DYLD_LIBRARY_PATH in parallel to
-	LD_LIBRARY_PATH for MacOSX dynamic linker.
-	* generic/tclEnv.c (TclSetEnv): fix env var setting on MacOSX (adapted
-	from [Patch 524352] by jkbonfield).
-
-2002-06-05  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/Tcl_Main.3: Documented $tcl_rcFileName and added more
-	clarifications about the intended use of Tcl_Main(). [Bug 505651]
-
-2002-06-05  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclFileName.c (TclGlob): mac specific fix to recent changes
-	in 'glob -tails' handling.
-	* mac/tclMacPort.h:
-	* mac/tclMacChan.c: fixed TIP#91 bustage.
-	* mac/tclMacResource.c (Tcl_MacConvertTextResource): added utf
-	conversion of text resource contents.
-	* tests/macFCmd.test (macFCmd-1.2): allow CWIE creator.
-
-2002-06-04  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl:
-	* tests/init.test:
-	* tests/tcltest.test:	Added more TIP 85 tests from Arjen Markus.
-	Converted tcltest.test to use a private namespace. Fixed bugs in
-	[tcltest::Eval] revealed by calling [tcltest::test] from a non-global
-	namespace, and namespace errors in init.test.
-
-2002-06-04  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/README: Update msys+mingw URL.
-
-2002-06-03  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/tcltest.n:
-	* library/tcltest/tcltest.tcl:
-	* library/tcltest/pkgIndex.tcl:
-	* tests/tcltest.test:  Implementation of TIP 85. Allows tcltest users
-	to add new legal values of the -match option to [test], associating
-	each with a Tcl command that does the matching of expected results
-	with actual results of tests. Thanks to Arjen Markus. => tcltest 2.1
-	[Patch 521362]
-
-2002-06-03  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* doc/namespace.n: added description of [namepace forget] behaviour
-	for unqualified patterns. [Bug 559268]
-
-2002-06-03  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c: reverting an accidental modification in the
-	last commit.
-
-2002-06-03  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* doc/Tcl.n: clarify the empty variable name issue ([Bug 549285]
-	reported by Tom Krehbiel, patch by Don Porter).
-
-2002-05-31  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/package.tcl:  Fixed leak of slave interp in [pkg_mkIndex].
-	Thanks to Helmut for report. [Bug 550534]
-
-	* tests/io.test:
-	* tests/main.test:  Use the "stdio" constraint to control whether an
-	[open "|[interpreter]"] is attempted.
-
-	* generic/tclExecute.c (TclMathInProgress,TclExecuteByteCode
-	(ExprCallMathFunc):
-	* generic/tclInt.h (TclMathInProgress):
-	* unix/Makefile.in (tclMtherr.*):
-	* unix/configure.in (NEED_MATHERR):
-	* unix/tclAppInit.c (matherr):
-	* unix/tclMtherr.c (removed file):
-	* win/tclWinMtherr.c (_matherr): Removed internal routine
-	TclMathInProgress and Unix implementation of matherr(). These are now
-	obsolete, dealing with very old versions of the C math library.
-	Windows version is retained in case Borland compilers require it, but
-	it is inactive. Thanks to Joe English. [Bug 474335, Patch 555635]
-
-	* unix/configure: regen
-
-2002-05-30  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:
-	* generic/tclCompile.c:
-	* generic/tclCompile.h: removed exprIsJustVarRef and
-	exprIsComparison from the ExprInfo and CompileEnv structs. These
-	were set, but not used since dec 1999 [Bug 562383].
-
-2002-05-30  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFileName.c (TclGlob): fix to longstanding 'knownBug' in
-	fileName tests 15.2-15.4, and fix to a new Tcl 8.4 bug in certain uses
-	of 'glob -tails'.
-	* tests/fileName.test: removed 'knownBug' flag from some tests, added
-	some new tests for above bugs.
-
-2002-05-29  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/configure: regen'ed
-	* unix/configure.in: replaced bigendian check with autoconf standard
-	AC_C_BIG_ENDIAN, which defined WORDS_BIGENDIAN on bigendian systems.
-	* generic/tclUtf.c (Tcl_UniCharNcmp):
-	* generic/tclInt.h (TclUniCharNcmp): use WORDS_BIGENDIAN instead of
-	TCL_OPTIMIZE_UNICODE_COMPARE to enable memcmp alternative.
-
-	* generic/tclExecute.c (TclExecuteByteCode INST_STR_CMP):
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd): changed the case for choosing
-	the Tcl_UniCharNcmp compare to when both objs are of StringType, as
-	benchmarks show that is the optimal check (both bigendian and
-	littleendian systems).
-
-2002-05-29  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclMain.c: Removed "dummy" reference to Tcl_LinkVar. It is
-	no longer needed since Tcl_Main() now actually calls Tcl_LinkVar().
-	Thanks to Joe English for pointing that out.
-
-2002-05-29  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclExecute.c (TclExecuteByteCode):
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd): Use the macro version.
-	* generic/tclInt.h (TclUniCharNcmp): Optimised still further with a
-	macro for use in sensitive places like tclExecute.c
-
-	* generic/tclUtf.c (Tcl_UniCharNcmp): Use new flag to figure out when
-	we can use an optimal comparison scheme, and default to the old scheme
-	in other cases which is at least safe.
-	* unix/configure.in (TCL_OPTIMIZE_UNICODE_COMPARE): New optional flag
-	that indicates when we can use memcmp() to compare Unicode strings
-	(i.e. when the high-byte of a Tcl_UniChar precedes the low-byte.)
-
-2002-05-29  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclInt.decls:
-	* generic/tclIntDecls.h:
-	* generic/tclStubInit.c:
-	* generic/tclUtf.c: added TclpUtfNcmp2 private command that
-	mirrors Tcl_UtfNcmp, but takes n in bytes, not utf-8 chars. This
-	provides a faster alternative for comparing utf strings	internally.
-	(Tcl_UniCharNcmp, Tcl_UniCharNcasecmp): removed the explicit end of
-	string check as it wasn't correct for the function (by doc and logic).
-
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd): reworked the string equal
-	comparison code to use TclpUtfNcmp2 as well as short-circuit for
-	equal objects or unequal length strings in the equal case.
-	Removed the use of goto and streamlined the other parts.
-
-	* generic/tclExecute.c (TclExecuteByteCode): added check for object
-	equality in the comparison instructions. Added short-circuit for !=
-	length strings in INST_EQ, INST_NEQ and INST_STR_CMP. Reworked
-	INST_STR_CMP to use TclpUtfNcmp2 where appropriate, and only use
-	Tcl_UniCharNcmp when at least one of the objects is a Unicode obj with
-	no utf bytes.
-
-	* generic/tclCompCmds.c (TclCompileStringCmd): removed error creation
-	in code that no longer throws an error.
-
-	* tests/string.test:
-	* tests/stringComp.test: added more string comparison checks.
-
-	* tests/clock.test: better qualified 9.1 constraint check for %s.
-
-2002-05-28  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclThreadAlloc.c (TclpRealloc, TclpFree): protect
-	against the case when NULL is based.
-
-	* tests/clock.test: added clock-9.1
-	* compat/strftime.c:
-	* generic/tclClock.c:
-	* generic/tclInt.decls:
-	* generic/tclIntDecls.h:
-	* unix/tclUnixTime.c: fix for Windows msvcrt mem leak caused by using
-	an env(TZ) setting trick for in clock format -gmt 1. This also makes
-	%s seem to work correctly with -gmt 1 as well as making it a lot
-	faster by avoid the env(TZ) hack. TclpStrftime now takes useGMT as an
-	arg. [Bug 559376]
-
-2002-05-28  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclIOUtil.c: fixes to Tcl_FSLoadFile when called on a file
-	inside a vfs. This should avoid leaving temporary files sitting
-	around on exit. [Bug 545579]
-
-2002-05-27  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* win/tclWinError.c: Added comment on conversion of
-	ERROR_NEGATIVE_SEEK because that is a mapping that really belongs,
-	and not a catch-all case.
-	* win/tclWinPort.h (EOVERFLOW): Should be either EFBIG or EINVAL
-	* generic/tclPosixStr.c (Tcl_ErrnoId, Tcl_ErrnoMsg): EOVERFLOW can
-	potentially be a synonym for EINVAL.
-
-2002-05-24  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	=== Changes due to TIP#91 ===
-
-	* win/tclWinPort.h: Added declaration of EOVERFLOW.
-	* doc/CrtChannel.3: Added documentation of wideSeekProc.
-	* generic/tclIOGT.c (TransformSeekProc, TransformWideSeekProc):
-	Adapted to use the new channel mechanism.
-	* unix/tclUnixChan.c (FileSeekProc, FileWideSeekProc): Renamed
-	FileSeekProc to FileWideSeekProc and created new FileSeekProc which
-	has the old-style interface and which errors out with EOVERFLOW when
-	the returned file position can't fit into the return type (int for
-	historical reasons).
-	* win/tclWinChan.c (FileSeekProc, FileWideSeekProc): Renamed
-	FileSeekProc to FileWideSeekProc and created new FileSeekProc which
-	has the old-style interface and which errors out with EOVERFLOW when
-	the returned file position can't fit into the return type (int for
-	historical reasons).
-	* mac/tclMacChan.c (FileSeek): Reverted to old interface; Macs lack
-	large-file support because I can't see how to add it.
-	* generic/tclIO.c (Tcl_Seek, Tcl_Tell): Given these functions
-	knowledge of the new arrangement of channel types.
-	(Tcl_ChannelVersion): Added recognition of new version code.
-	(HaveVersion): New function to do version checking.
-	(Tcl_ChannelBlockModeProc, Tcl_ChannelFlushProc)
-	(Tcl_ChannelHandlerProc): Made these functions use HaveVersion for
-	ease of future maintainability.
-	(Tcl_ChannelBlockModeProc): Obvious lookup function.
-	* generic/tcl.h (Tcl_ChannelType): New wideSeekProc field, and
-	seekProc type restored to old interpretation.
-	(TCL_CHANNEL_VERSION_3): New channel version.
-
-2002-05-24  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* tests/winPipe.test: Applied patch for [Bug 549617]. Patch and bug
-	report by Kevin Kenny <kennykb@users.sourceforge.net>.
-
-	* win/tclWinSock.c (TcpWatchProc): Fixed [Bug 557878]. We are not
-	allowed to mess with the watch mask if the socket is a server socket.
-	I believe that the original reporter is George Peter Staplin.
-
-2002-05-21  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure: Regen.
-	* unix/configure.in: Invoke SC_ENABLE_SHARED before calling
-	SC_CONFIG_CFLAGS so that the SHARED_BUILD variable can be checked
-	inside SC_CONFIG_CFLAGS.
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): Pass -non_shared instead of -shared
-	to ld when configured with --disable-shared under OSF. [Bug 540390]
-
-2002-05-20  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclInt.h: added prototype for TclpFilesystemPathType().
-	* mac/tclMacChan.c: use MSL provided creator type if available instead
-	of the default 'MPW '.
-
-2002-05-16  Joe English  <jenglish@users.sf.net>
-
-	* doc/CrtObjCmd.3: Added Tcl_GetCommandFromObj, Tcl_GetCommandFullName
-	[Bugs 547987, 414921]
-
-2002-05-14  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* unix/tclUnixChan.c (TtyOutputProc): #if/#endif-ed this function out
-	to stop compiler warnings. Also much general tidying of comments in
-	this file and removal of whitespace from blank lines.
-
-2002-05-13  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* unix/tclUnixChan.c (SETBREAK): Solaris thinks ioctl() takes a signed
-	second argument, and Linux thinks ioctl() takes an unsigned second
-	argument. So need a longer definition of this macro to get neither to
-	spew warnings...
-
-2002-05-13  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclEvent.c:
-	* generic/tclIOUtil.c:
-	* generic/tclInt.h: clean up all memory allocated by the filesystem,
-	via introduction of 'TclFinalizeFilesystem'.
-	Move TclFinalizeLoad into TclFinalizeFilesystem so we can be sure it
-	is called at just the right time.
-	Fix bad comment also. [Bug 555078 and 'fs' part of 543549]
-	* win/tclWinChan.c: fix comment referring to wrong function.
-
-2002-05-10  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/load.test:
-	* tests/safe.test:
-	* tests/tcltest.test: Corrected some list-quoting issues and other
-	matters that cause tests to fail when the patch includes special
-	characters. Report from Vince Darley. [Bug 554068]
-
-2002-05-08    David Gravereaux <davygrvy@pobox.com>
-
-	* doc/file.n:
-	* tools/man2tcl.c:
-	* tools/man2help2.tcl:  Thanks to Peter Spjuth
-	<peter.spjuth@space.se>, again. My prior fix for single-quote macro
-	mis-understanding was wrong. Reverted to reimpliment the 'macro2' proc
-	which handles single-quote macros and restored file.n text arrangement
-	to avoid single-quotes on the first line. Sorry for all the confusion.
-
-2002-05-08  David Gravereaux <davygrvy@pobox.com>
-
-	* tools/man2tcl.c:
-	* tools/man2help2.tcl: Proper source of macro error misunderstanding
-	single-quote as the leading macro command found and repaired.
-
-	* doc/file.n: Reverted to prior state before I messed with it.
-
-2002-05-08  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl: Corrected [uplevel] quoting when
-	[source]-ing test script in subdirectories.
-	* tests/fileName.test:
-	* tests/load.test:
-	* tests/main.test:
-	* tests/tcltest.test:
-	* tests/unixInit.test: Fixes to test suite when there's a space in the
-	working path. Thanks to Kevin Kenny.
-
-2002-05-07  David Gravereaux <davygrvy@pobox.com>
-
-	-- Changes from Peter Spjuth <peter.spjuth@space.se>
-	* tools/man2tcl.c: Increased line buffer size and a bail-out if that
-	should ever be over-run.
-	* tools/man2help.tcl: Include Courier New font in rtf header.
-	* tools/man2help2.tcl: Improved handling of CS/CE fields. Use Courier
-	New for code samples and indent better.
-
-	* doc/file.n:
-	* doc/TraceCmd.3:  winhelp conversion tools where understanding
-	a ' as the first character on a line to be an unknown macro.
-	Not knowing how to repair tools/man2tcl.c, I decided to rearrange
-	the text in the docs instead.
-
-2002-05-07  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFileName.c: fix to similar segfault when using 'glob
-	-types nonsense -dir dirname -join * *'. [Bug 553320]
-
-	* doc/FileSystem.3: further documentation on vfs.
-	* tests/cmdAH.test:
-	* tests/fileSystem.test:
-	* tests/pkgMkindex.test: Fix to testsuite bugs when running out of
-	directory whose name contains '{' or '['.
-
-2002-05-07  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* tests/basic.test: Fix for [Bug 549607]
-	* tests/encoding.test: Fix for [Bug 549610]
-	These are testsuite bugs that caused failures when the filename
-	contained spaces. Report & fix by Kevin Kenny.
-
-2002-05-02  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFileName.c: fix to freeing a bad object (i.e. segfault)
-	when using 'glob -types nonsense -dir dirname'.
-	* generic/tclWinFile.c: fix to [Bug 551306], also wrapped some long
-	lines.
-	* tests/fileName.test: added several tests for the above bugs.
-	* doc/FileSystem.3: clarified documentation on refCount requirements
-	of the object returned by the path type function.
-	* generic/tclIOUtil.c:
-	* win/tclWinFile.c:
-	* unix/tclUnixFile.c:
-	* mac/tclMacFile.c: moved TclpFilesystemPathType to the platform-
-	specific directories, so we can add missing platform-specific
-	implementations. On Windows, 'file system' now returns useful results
-	like "native NTFS", "native FAT" for that system. Unix and MacOS still
-	only return "native".
-	* doc/file.n: clarified documentation.
-	* tests/winFile.test: test for 'file system' returning correct values.
-	* tests/fileSystem.test: test for 'file system' returning correct
-	values. Clean up after failed previous test run.
-
-2002-04-26  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/configure:
-	* unix/tcl.m4: change HP-11 SHLIB_LD_LIBS from "" to ${LIBS} so that
-	the .sl knows its dependent libs.
-
-2002-04-26  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/obj.test (obj-11.[56]): Test conversion to boolean more
-	thoroughly.
-	* generic/tclObj.c (SetBooleanFromAny): Was not calling an integer
-	parsing function on native 64-bit platforms! [Bug 548686]
-
-2002-04-24  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclInt.h: corrected TclRememberJoinableThread decl to use
-	VOID instead of void.
-	* generic/tclThreadJoin.c: noted that this code isn't needed on Unix.
-
-2002-04-23  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* doc/exec.n:
-	* doc/tclvars.n: doc updates [Patch 509426] (gravereaux)
-
-2002-04-24  Daniel Steffen  <das@users.sourceforge.net>
-
-	* mac/tclMacResource.r: added check of TCLTK_NO_LIBRARY_TEXT_RESOURCES
-	#define to allow disabling the inclusion of the tcl library code in
-	the resource fork of Tcl executables and shared libraries.
-
-2002-04-23  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/TraceCmd.3: New file that documents Tcl_CommandTraceInfo,
-	Tcl_TraceCommand and Tcl_UntraceCommand [Bug 414927]
-
-2002-04-22  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclAlloc.c:
-	* generic/tclInt.h:
-	* generic/tclThreadAlloc.c (new):
-	* unix/Makefile.in:
-	* unix/tclUnixThrd.c:
-	* win/Makefile.in:
-	* win/tclWinInt.h:
-	* win/tclWinThrd.c: added new threaded allocator contributed by AOL
-	that significantly reduces lock contention when multiple threads are
-	in use. Only Windows and Unix implementations are ready, and the
-	Windows one may need work. It is only used by default on Unix for now,
-	and requires that USE_THREAD_ALLOC be defined (--enable-threads on
-	Unix will define this).
-
-	* generic/tclIOUtil.c (Tcl_FSRegister, Tcl_FSUnregister): corrected
-	calling of Tcl_ConditionWait to ensure that there would be a condition
-	to wait upon.
-
-	* generic/tclCmdAH.c (Tcl_FileObjCmd): added cast in FILE_SIZE.
-
-	* win/tclWinFCmd.c (DoDeleteFile): check return of setattr API calls
-	in file deletion for correct Win32 API handling.
-
-	* win/Makefile.in: correct dependencies for shell, gdb, runtest
-	targets.
-
-	* doc/clock.n:
-	* compat/strftime.c (_fmt): change strftime to correctly handle
-	localized %c, %x and %X on Windows. Added some notes about how the
-	other values could be further localized.
-
-2002-04-19  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclMain.c (Tcl_Main):  Free the memory allocated for the
-	startup script path. [Bug 543549]
-
-	* library/msgcat/msgcat.tcl:  [mcmax] wasn't using the caller's
-	namespace when determining the max translated length. Also made
-	revisions for better use of namespace variables and more efficient
-	[uplevel]s.
-
-	* doc/msgcat.n:
-	* library/msgcat/msgcat.tcl:
-	* library/msgcat/pkgIndex.tcl:  Added [mcload] to the export list of
-	msgcat; bumped to 1.2.3. [Bug 544727]
-
-2002-04-20  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclInt.decls:
-	* generic/tclIntPlatDecls.h:
-	* generic/tclStubInit.c:
-	* mac/tclMacFCmd.c:
-	* mac/tclMacFile.c:
-	* mac/tclMacUtil.c: Modified TclpObjNormalizePath to be alias file
-	aware, and replaced various calls to FSpLocationFrom*Path by calls to
-	new alias file aware versions FSpLLocationFrom*Path. The alias file
-	aware routines don't resolve the last component of a path if it is an
-	alias. This allows [file copy/delete] etc. to act correctly on alias
-	files. (c.f. discussion in [Bug 511666])
-
-2002-04-19  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/lindex.test (lindex-3.7):
-	* generic/tclUtil.c (TclGetIntForIndex): Stopped indexes from hitting
-	wide ints. [Bug 526717]
-
-2002-04-18  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclNamesp.c:
-	* tests/info.test: [Bug 545325] info level didn't report namespace
-	eval, bug report by Richard Suchenwirth.
-
-2002-04-18  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/subst.n:  Clarified documentation on handling unusual return
-	codes during substitution, and on variable substitutions implied by
-	command substitution, and vice versa. [Bug 536838]
-
-2002-04-18  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclCmdIL.c (InfoBodyCmd):
-	* tests/info.test (info-2.6): Proc bodies without string reps would
-	report as empty. [Bug 545644]
-
-	* generic/tclCmdMZ.c (Tcl_SubstObj): More clarification for comment on
-	behaviour when substitutions are not well-formed, prompted by [Bug
-	536831]; alas, removing the ill-defined behaviour is a lot of work.
-
-2002-04-18  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c:
-	* tests/expr-old.test: fix for [Bug 542588] (Phil Ehrens), where "too
-	large integers" were reported as "floating-point value" in [expr]
-	error messages.
-
-2002-04-17  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclEncoding.c (EscapeFromUtfProc):
-	* generic/tclIO.c (WriteChars, Tcl_Close): corrected the handling of
-	outputting end escapes for escape-based encodings.
-	[Bug 526524] (yamamoto)
-
-2002-04-17  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/tcltest.n:  Removed [saveState] and [restoreState] from tcltest
-	2 documentation, effectively deprecating them. [Bug 495660]
-	* library/tcltest/tcltest.tcl: Made separate export for commands kept
-	only for tcltest 1 compatibility.
-
-	* tests/iogt.test: Revised to run tests in a namespace, rather than
-	use the useless and buggy [saveState] and [restoreState] commands of
-	tcltest. Updated to use tcltest 2 as well. [Patch 544911]
-
-2002-04-16  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/io.test: Revised to run tests in a namespace, rather than use
-	the useless and buggy [saveState] and [restoreState] commands of
-	tcltest. Updated to use tcltest 2 as well. [Patch 544546]
-
-2002-04-15  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclProc.c:
-	* tests/proc-old.test: Improved stack trace for TCL_BREAK and
-	TCL_CONTINUE returns from procs. Patch by Don Porter [Bug 536955].
-
-	* generic/tclExecute.c:
-	* tests/compile.test: made bytecodes check for a catch before
-	returning; the compiled [return] is otherwise non-catchable. [Bug
-	542142] reported by Andreas Kupries.
-
-2002-04-15  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/socket.test:  Increased timeout values so that tests have
-	time to successfully complete even on slow/busy machines. [Bug 523470]
-
-	* doc/tcltest.n:
-	* library/tcltest/tcltest.tcl:
-	* tests/tcltest.test:  Revised [tcltest::test] to return errors when
-	called with invalid syntax and to accept exactly two arguments as
-	documented. Improved error messages. [Bug 497446, Patch 513983]
-	***POTENTIAL INCOMPATIBILITY***: Incompatible with previous tcltest
-	2.* releases, found only in alpha releases of Tcl 8.4.
-
-2002-04-11  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclNotify.c (TclFinalizeNotifier): remove remaining
-	unserviced events on finalization.
-
-	* win/tcl.m4: Enabled COFF as well as CV style debug info with
-	--enable-symbols to allow Dr. Watson users to see function info. More
-	info on debugging levels can be obtained at:
-	http://msdn.microsoft.com/library/en-us/dnvc60/html/gendepdebug.asp
-
-	* tests/ioCmd.test: fixed iocmd-8.15 to have mac and unixPc variants.
-
-	* generic/tclParse.c (Tcl_ParseVar): conditionally incr obj refcount
-	to prevent possible mem leak.
-
-2002-04-08  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tcl.h: no <sys/types.h> on mac.
-	* mac/tclMacFile.c: minor fixes to Vince's changes from 03-24.
-	* mac/tclMacOSA.c:
-	* mac/tclMacResource.c: added missing Tcl_UtfToExternalDString
-	conversions of resource file names.
-	* mac/tclMacSock.c (TcpGetOptionProc): fixed bug introduced by Andreas
-	on 02-25; changed strcmp's to strncmp's so that option comparison
-	behaves like on other platforms.
-	* mac/tcltkMacBuildSupport.sea.hqx (CW Pro6 changes): added support to
-	allow Tk to hookup C library stderr/stdout to TkConsole.
-	* tests/basic.test:
-	* tests/cmdAH.test:
-	* tests/encoding.test:
-	* tests/fileSystem.test:
-	* tests/ioCmd.test: fixed tests failing on mac: check for existence of
-	[exec], changed some result strings.
-
-2002-04-06  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/tclUnixFCmd.c (Realpath): added a little extra code to
-	initialize a realpath arg when compiling in PURIFY mode in order to
-	prevent spurious purify warnings. We should really create our own
-	realpath implementation, but this will at least quiet purify for now.
-
-2002-04-05  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c (Tcl_SubstObj):
-	* tests/subst.test:  Corrected [subst] so that return codes TCL_BREAK
-	and TCL_CONTINUE returned by variable substitution have the same
-	effect as when those codes are returned by command substitution. [Bug
-	536879]
-
-2002-04-03  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* library/tcltest/tcltest.tcl: added getMatchingFiles back (alias to
-	GetMatchingFiles), which was a public function in tcltest 1.0.
-
-2002-04-01  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclEnv.c:
-	* generic/tclIOUtil.c: invalidate filesystem cache when the user
-	changes env(HOME). Fixes [Bug 535621]. Also cleaned up some of the
-	documentation.
-	* tests/fileSystem.test: added test for bug just fixed.
-
-2002-04-01  Kevin Kenny  <kennykb@acm.org>
-
-	* win/tclWinTime.c (Tcl_GetTime): made the checks of clock frequency
-	more permissive to cope with the fact that Win98SE is observed to
-	return 1.19318 in place of 1.193182 for the performance counter
-	frequency.
-
-2002-03-29  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclCmdMZ.c (Tcl_TraceObjCmd, TraceVarProc)
-	(TraceCommandProc, TclTraceCommandObjCmd):  corrected potential
-	double-free of traces on variables by flagging in Trace*Proc that it
-	will free the var in case the eval wants to delete the var trace as
-	well. [Bug 536937] Also converted Tcl_UntraceVar -> Tcl_UntraceVar2
-	and Tcl_Eval to Tcl_EvalEx in Trace*Proc for slight efficiency
-	improvement.
-
-2002-03-29  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/AllowExc.3:
-	* generic/tclBasic.c (Tcl_EvalObjv,Tcl_EvalEx,Tcl_EvalObjEx):
-	* generic/tclCompile.h (TclCompEvalObj):
-	* generic/tclExecute.c (TclCompEvalObj,TclExecuteByteCode):
-	* tests/basic.test: Corrected problems with Tcl_AllowExceptions having
-	influence over the wrong scope of Tcl_*Eval* calls. Patch from Miguel
-	Sofer. Report from Jean-Claude Wippler. [Bug 219181]
-
-2002-03-28  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclVar.c: Refactored CallTraces to collect repeated handling
-	of its returned value into CallTraces itself.
-
-2002-03-28  David Gravereaux <davygrvy@pobox.com>
-
-	* tools/feather.bmp:
-	* tools/man2help.tcl:
-	* tools/man2help2.tcl:
-	* win/makefile.vc: More winhelp target fixups. Added a feather bitmap
-	to the non-scrollable area and changed the color to be yellow from a
-	plain white. The colors can be whatever we want them to be, but
-	thought I would start with something bold. [Bug 527941]
-
-	* doc/SetVar.3:
-	* doc/TraceVar.3:
-	* doc/UpVar.3:  .AP macro syntax repair.
-
-2002-03-27  David Gravereaux <davygrvy@pobox.com>
-
-	* tools/man2help.tcl:
-	* win/makefile.vc:  winhelp target now copies all needed files from
-	tools/ to a workarea under $(OUT_DIR) and builds it from there. No
-	build cruft is left in tools/ anymore. All paths used in man2help.tcl
-	are now relative to where the script is. [Bug 527941]
-
-2002-03-27  David Gravereaux <davygrvy@pobox.com>
-
-	* win/.cvsignore:
-	* win/buildall.vc.bat:
-	* win/coffbase.txt:
-	* win/makefile.vc:
-	* win/nmakehlp.c (new):
-	* win/rules.vc:  First draft fix for [Bug 527941]. More changes need
-	to done to the makehelp target to get to stop leaving build files in
-	the tools/ directory. This does not address the syntax errors in the
-	man files. Having the contents of tcl.hpj(.in) inside makefile.vc
-	allows for version numbers to be replaced with macros.
-
-	The new nmakehlp.c is built by rules.vc in preprocessing and removes
-	the need to use tricky shell syntax that wasn't compatible on Win9x
-	systems. Clean targets made Win9x complient. This is a first draft
-	repair for [Bug 533862].
-
-2002-03-28  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclBasic.c (Tcl_EvalEx): passing the correct commandSize to
-	TclEvalObjvInternal. [Bug 219362], fix by David Knoll.
-
-2002-03-28  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclBasic.c (Tcl_EvalEx):
-	* tests/basic.test: avoid exceptional returns at level 0. [Bug 219181]
-
-2002-03-27  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/tcltest.n ([mainThread]):
-	* library/tcltest/tcltest.tcl:
-	* tests/tcltest.test:  Major code cleanup to deal with whitespace,
-	coding conventions, and namespace issues, with several minor bugs
-	fixed in the process.
-
-	* tests/main.test: Added missing [after cancel]s.
-
-2002-03-25  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/main.test: Removed workarounds for Bug 495977.
-
-	* library/tcltest/tcltest.tcl:  Keep the value of $::auto_path
-	unchanged, so that the tcltest package can test code that depends on
-	auto-loading. If a testing application needs $::auto_path pruned, it
-	should do that itself. [Bug 495726]
-	Improve the processing of the -constraints option to [test] so that
-	constraint lists can have arbitrary whitespace, and non-lists don't
-	blow things up. [Bug 495977]
-	Corrected faulty variable initialization. [Bug 534845]
-
-2002-03-25  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* doc/CrtTrace.3: small doc correction
-	* generic/tclBasic.c (Tcl_DeleteTrace): Allow NULL callback on trace
-	deletions. [Bug 534728] (Hemang Lavana)
-
-2002-03-24  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclBasic.c (Tcl_EvalObjv): replaced obscure, incorrect code
-	as described in [Bug 533907] (Don Porter).
-
-2002-03-24  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl:  Use [interpreter] to set/query the
-	executable currently running the tcltest package. [Bug 454050]
-
-	* library/tcltest/tcltest.tcl:  Allow non-proc commands to be used as
-	the customization hooks. [Bug 495662]
-
-2002-03-24  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFilename.c:
-	* generic/tclFCmd.c:
-	* generic/tclTest.c:
-	* generic/tcl.h:
-	* generic/tclIOUtil.c:
-	* win/tclWinFile.c:
-	* win/tclWinFCmd.c:
-	* win/tclWinPipe.c:
-	* unix/tclUnixFile.c:
-	* unix/tclUnixFCmd.c:
-	* mac/tclMacFile.c:
-	* doc/FileSystem.3:
-	* doc/file.n:
-	* tests/cmdAH.test:
-	* tests/fileName.test:
-	* tests/fileSystem.test: (new file)
-	* tests/winFCmd.test: fix [Bug 511666] and [Bug 511658], and improved
-	documentation of some aspects of the filesystem, particularly
-	'Tcl_FSMatchInDirectory' which now might match a single file/directory
-	only, and 'file normalize' which wasn't very clear before. Removed
-	inconsistency betweens docs and the Tcl_Filesystem structure. Also
-	fixed [Bug 523217] and corrected file normalization on Unix so that
-	it expands symbolic links. Added some new tests of the filesystem
-	code (in the new file 'fileSystem.test'), and some extra tests for
-	correct handling of symbolic links. Fix to [Bug 530960] which shows up
-	on Win98. Made comparison with ".com" case insensitive in tclWinPipe.c
-
-	***POTENTIAL INCOMPATIBILITY***: But only between alpha releases
-	(users of the new Tcl_Filesystem lookup table in Tcl 8.4a4 need to
-	handle the new way in which Tcl may call Tcl_FSMatchInDirectory, and
-	'file normalize' on unix now behaves correctly). Only known impact is
-	with the 'tclvfs' extension.
-
-2002-03-22  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* tests/basic.test (basic-46.1): adding test for [Bug 533758], fixed
-	earlier today.
-
-2002-03-22  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/tclWinInt.h: moved undef of TCL_STORAGE_CLASS. [Bug 478579]
-
-2002-03-22  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclBasic.c (Tcl_EvalObjEx):
-	* generic/tclExecute.c (TclCompEvalObj): fixed the errorInfo for
-	return codes other than (TCL_OK, TCL_ERROR) to runLevel 0.[Bug 533758]
-	Removed the static RecordTracebackInfo(), as its functionality is
-	easily replicated by Tcl_LogCommandInfo. Bug and redundancy noted by
-	Don Porter.
-
-2002-03-21  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/expr.n: Improved documentation for ceil and floor. [Bug 530535]
-
-2002-03-20  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/SetVar.3:
-	* doc/TraceVar.3:
-	* doc/UpVar.3:
-	* generic/tcl.h (Tcl_VarTraceProc):
-	* generic/tcl.decls (Tcl_GetVar2, Tcl_SetVar2, Tcl_TraceVar2,
-	(Tcl_UnsetVar2, Tcl_UntraceVar2, Tcl_UpVar2, Tcl_VarTraceInfo2,
-	(Tcl_GetVar2Ex, TclSetVar2Ex):
-	* generic/tclCmdMZ.c (TraceVarProc):
-	* generic/tclEnv.c (EnvTraceProc):
-	* generic/tclEvent.c (VwaitVarProc):
-	* generic/tclInt.decls (TclLookupVar,TclPrecTraceProc):
-	* generic/tclLink.c (LinkTraceProc):
-	* generic/tclUtil.c (TclPrecTraceProc):
-	* generic/tclVar.c (CallTraces, MakeUpvar, VarErrMsg, TclLookupVar,
-	(Tcl_GetVar2, Tcl_SetVar2, Tcl_TraceVar2, Tcl_UnsetVar2,
-	(Tcl_UntraceVar2, Tcl_UpVar2, Tcl_VarTraceInfo2, Tcl_GetVar2Ex,
-	(TclSetVar2Ex): Updated interfaces of generic/tclVar.c according to
-	TIP 27. In particular, the "part2" arguments were CONSTified. [Patch
-	532642]
-	* generic/tclDecls.h:
-	* generic/tclIntDecls.h: make genstubs
-
-2002-03-15  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/compile.test (compile-12.3): Test to detect bug 530320.
-	* generic/tclCompile.c (TclCompileTokens): Fixed buffer overrun
-	reported in bug 530320.
-
-2002-03-14  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/configure: Regen.
-	* win/configure.in: Add configure time test for SEH support in the
-	compiler.
-	* win/tclWin32Dll.c (ESP, EBP, TclpCheckStackSpace,
-	(_except_checkstackspace_handler):
-	* win/tclWinChan.c (ESP, EBP, Tcl_MakeFileChannel,
-	(_except_makefilechannel_handler):
-	* win/tclWinFCmd.c (ESP, EBP, DoRenameFile, DoCopyFile,
-	(_except_dorenamefile_handler, _except_docopyfile_handler):
-	Implement SEH support under gcc using inline asm. Tcl and Tk should
-	now compile with Mingw 1.1. [Patch 525746]
-
-2002-03-14  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/tclWinFCmd.c (DoRenameFile, DoCopyFile): Handle an SEH exception
-	with EXCEPTION_EXECUTE_HANDLER instead of restarting the faulting
-	instruction with EXCEPTION_CONTINUE_EXECUTION. [Bug 466102] provides
-	an example of how restarting could send Tcl into an infinite loop.
-	[Patch 525746]
-
-2002-03-11  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/tclWinFCmd.c (DoRenameFile, DoCopyFile, DoDeleteFile,
-	(DoRemoveJustDirectory): Make sure we don't pass NULL or "" as a path
-	name to Win32 API functions since this was crashing under Windows 98.
-
-2002-03-11  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl:
-	* library/tcltest/pkgIndex.tcl: Bumped tcltest package to 2.0.2.
-
-2002-03-11  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl (getMatchingFiles): Pass a proper list
-	to foreach to avoid munging a Windows patch like D:\Foo\Bar into
-	D:FooBar before the glob.
-
-2002-03-11  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tclEncoding.c: Fix typo in comment.
-	* generic/tclIO.c (DoReadChars, ReadBytes, ReadChars): Use NULL value
-	instead of pointer set to NULL to make things more clear. Reorder
-	arguments so that they match the function signatures. Cleanup little
-	typos and add more descriptive comment.
-
-2002-03-08  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/README: Update to indicate that Mingw 1.1 is required to build
-	Tcl. Add section describing new msys based build process. Update
-	Cygwin build instructions so users know where to find Mingw 1.1.
-
-2002-03-08  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/tclWinFCmd.c (DoCopyFile): correctly set retval to TCL_OK.
-
-2002-03-07  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/tclWin32Dll.c (TclpCheckStackSpace):
-	* win/tclWinFCmd.c (DoRenameFile, DoCopyFile): Replace hard coded
-	constants with Win32 symbolic names. Move control flow statements out
-	of __try blocks since the documentation indicates it is frowned upon.
-
-2002-03-07  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/interp.n:
-	* generic/tclInterp.c (Tcl_InterpObjCmd, SlaveObjCmd,
-	(SlaveRecursionLimit):
-	* generic/tclTest.c:
-	* tests/interp.test: Added the [interp recursionlimit] command to
-	set/query the recursion limit of an interpreter. Proposal and
-	implementation from Stephen Trier. [TIP 87, Patch 522849]
-
-2002-03-06  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tcl.h, tools/tcl.wse.in, unix/configure.in,
-	* unix/tcl.spec, win/README.binary, win/configure.in, README:
-	Bumped patchlevel; this might need to change in the future, but it
-	will help us distinguish between the CVS version and the most recent
-	released version.
-
-2002-03-06  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclInt.h: for unshared objects, TclDecrRefCount now frees
-	the internal rep before the string rep - just like the non-macro
-	Tcl_DecrRefCount/TclFreeObj. [Bug 524802]
-
-2002-03-06  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/lsearch.n: Documentation of new features, plus examples.
-	* tests/lsearch.test: Tests of new features.
-	* generic/tclCmdIL.c (Tcl_LsearchObjCmd): TIP#80 support. See
-	http://purl.org/tcl/tip/80 for details.
-
-2002-03-05  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	*** 8.4a4 TAGGED FOR RELEASE ***
-
-	* unix/tclUnixChan.c: initial remedy for [Bug 525783] flush problem
-	introduced by TIP #35. This may not satisfy true serial channels, but
-	it restores the correct flushing of std* channels on exit.
-
-	* unix/README: added --enable-langinfo doc.
-
-	* unix/tcl.spec:
-	* tools/tcl.wse.in: fixed URL refs to use www.tcl.tk or SF.
-
-2002-03-04  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* README:
-	* mac/README:
-	* unix/Makefile.in:
-	* unix/README:
-	* win/README:
-	* win/README.binary: updated to use www.tcl.tk URL.
-
-	* unix/Makefile.in: added older ChangeLogs to dist target.
-
-	* tests/io.test:
-	* tests/encoding.test: corrected iso2022 encoding results.
-	added encoding-24.*
-	* generic/tclEncoding.c (EscapeFromUtfProc): corrected output of
-	escape codes as per RFC 1468. [Patch 474358] (taguchi)
-	(TclFinalizeEncodingSubsystem): corrected potential double-free
-	when encodings were finalized on exit. [Bugs 219314, 524674]
-
-2002-03-01  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* library/encoding/iso2022-jp.enc:
-	* library/encoding/iso2022.enc:
-	* tools/encoding/iso2022-jp.esc:
-	* tools/encoding/iso2022.esc: gave <ESC>$B precedence over <ESC>$@,
-	based on comments (point 1) in [Bug 219283] (rfc 1468)
-
-	* tests/encoding.test: added encoding-23.* tests
-	* generic/tclIO.c (FilterInputBytes): reset the TCL_ENCODING_START
-	flags in the ChannelState when using 'gets'. [Bug 523988]
-	Also reduced the value of ENCODING_LINESIZE from 30 to 20 as this
-	seems to improve the performance of 'gets' according to tclbench.
-
-2002-02-28  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclCmdMZ.c (TraceCommandProc): ensure that TraceCommandInfo
-	structure was also deleted when a command was deleted to prevent a
-	mem leak.
-
-	* generic/tclBasic.c (Tcl_CreateObjTrace): set tracePtr->flags
-	correctly.
-
-	* generic/tclTimer.c (TimerExitProc): remove remaining events in
-	tls on thread exit.
-
-2002-02-28  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclNamesp.c: allow cached fully-qualified namespace names to
-	be usable from different namespaces within the same interpreter
-	without forcing a new lookup [Patch 458872].
-
-2002-02-28  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclExecute.c: Replaced a few direct stack accesses with the
-	POP_OBJECT() macro [Bug 507181] (Don Porter).
-
-2002-02-27  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/GetIndex.3:
-	* generic/tcl.decls (Tcl_GetIndexFromObjStruct):
-	* generic/tclIndexObj.c (Tcl_GetIndexFromObjStruct):  Revised the
-	prototype of the Tcl_GetIndexFromObjStruct to take its struct table as
-	a (CONST VOID *) argument, better describing what it is, maintaining
-	source compatibility, and adding CONST correctness according to TIP
-	27. Thanks to Joe English for an elegant solution. [Bug 520304]
-
-	* generic/tclDecls.h: make genstubs
-
-	* generic/tclMain.c (Tcl_Main,StdinProc):  Corrected some reference
-	count management errors on the interactive command Tcl_Obj found by
-	Purify. Thanks to Jeff Hobbs for the report and assistance.
-
-2002-02-27  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclBasic.c (Tcl_EvalTokensStandard): corrected mem leak in
-	error case.
-
-	* generic/tclTest.c (TestStatProc[123]): correct harmless UMRs.
-
-	* generic/tclLink.c (Tcl_LinkVar): correct mem leak in error case.
-
-2002-02-27  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* tests/socket.test (2.7): Accepted and applied patch for [Bug 523470]
-	provided by Don Porter <dgp@users.sourceforge.net> to avoid timing
-	problems in that test.
-
-	* unix/tclUnixChan.c (TclpOpenFileChannel): Added code to regonize
-	"/dev/tty" (by name) and to not handle it as tty / serial line. This
-	is the controlling terminal and is special. Setting it into raw mode
-	as is done for other tty's is a bad idea. This is a hackish fix for
-	expect [Bug 520624]. The fix has limitation: Tcl_MakeFileChannel
-	handles tty's specially too, but is unable to recognize /dev/tty as it
-	only gets a file descriptor, and no name for it.
-
-2002-02-26  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclCmdAH.c (StoreStatData): corrected mem leak.
-
-	* generic/tclCmdMZ.c (Tcl_RegsubObjCmd): prevent obj leak in
-	remedial regsub case.
-
-	* generic/tclFileName.c (Tcl_TranslateFileName): decr refcount for
-	error case to prevent mem leak.
-
-	* generic/tclVar.c (Tcl_ArrayObjCmd): removed extra obj allocation.
-
-	* unix/tclUnixSock.c (Tcl_GetHostName): added an extra
-	gethostbyname check to guard against failure with truncated
-	names returned by uname.
-
-	* unix/configure:
-	* unix/tcl.m4 (SC_SERIAL_PORT): added sys/modem.h check and defined
-	_XOPEN_SOURCE_EXTENDED for HP-11 to get updated header decls.
-
-	* unix/tclUnixChan.c: added Unix implementation of TIP #35, serial
-	port support. [Patch 438509] (schroedter)
-
-2002-02-26  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCmpCmds.c: (bugfix to the bugfix, hopefully the last)
-	Bugfix to the new [for] compiling code: was setting a exceptArray
-	parameter using another param which wasn't yet initialised, thus
-	filling it with noise.
-
-2002-02-25  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* mac/tclMacSock.c (TcpGetOptionProc): Changed to recognize the option
-	"-error". Essentially ignores the option, always returning an empty
-	string.
-
-2002-02-25  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* doc/Alloc.3:
-	* doc/LinkVar.3:
-	* doc/ObjectType.3:
-	* doc/PkgRequire.3:
-	* doc/Preserve.3:
-	* doc/TCL_MEM_DEBUG.3: Updated documentation to describe the ckalloc,
-	ckfree, ckrealloc, attemptckalloc, and attemptckrealloc macros, and
-	to accurately describe when and how they are used. [Bug 497459] (dgp)
-
-	* generic/tclHash.c (AllocArrayEntry, AllocStringEntry):
-	Before invoking ckalloc when creating a Tcl_HashEntry,
-	check that the amount of memory being allocated is
-	at least as large as sizeof(Tcl_HashEntry). The previous
-	code was allocating memory regions that were one
-	or two bytes short. [Bug 521950] (dejong)
-
-2002-02-25  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclBasic.c (Tcl_EvalEx): avoiding a buffer overrun
-	reported by Joe English, and restoring tcl7.6 behaviour for
-	[subst]: badly terminated nested scripts will raise an error
-	and not be evaluated. [Bug 495207]
-
-2002-02-25  Don Porter  <dgp@users.sourceforge.net>
-
-	* unix/tclUnixPort.h: corrected strtoll prototype mismatch on Tru64.
-	* compat/strtod.c (strtod): simplified #includes
-	* compat/strtol.c (strtol): gather result in a long before returning
-	as a long: necessary on platforms where sizeof(int) != sizeof(long).
-
-2002-02-25  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tclLoadDyld.c: updated to use Mac OS X 10.1 dyld APIs that
-	have more libdl-like semantics. [Bug 514392]
-
-2002-02-25  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCompCmds: fixing a bug in patch dated 2002-02-22, in the
-	code for [for] and [while]. Under certain conditions, for long bodies,
-	the exception range parameters were badly computed. Tests forthcoming:
-	I still can't reproduce the conditions in the testsuite (!), although
-	the bug (with assorted segfault or panic!)  can be triggered from the
-	console or with the new parse.bench in tclbench.
-
-2002-02-25  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* compat/strtoul.c, compat/strtol.c, compat/strtod.c: Added UCHAR,
-	CONST and #includes to clean up GCC output.
-
-2002-02-23  Don Porter  <dgp@users.sourceforge.net>
-
-	* compat/strtoull.c (strtoull):
-	* compat/strtoll.c (strtoll):
-	* compat/strtoul.c (strtoul): Fixed failure to handle leading
-	sign symbols '+' and '-' and '0X' and raise overflow errors.
-	[Bug 440916]  Also corrects prototype and errno problems.
-
-2002-02-23  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* configure: Regen.
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): Link with -n32 instead of -32 when
-	building on IRIX64-6.* system. [Bug 521707]
-
-2002-02-22  Don Porter <dgp@users.sourceforge.net>
-
-	* generic/tclInt.h:
-	* generic/tclObj.c: renamed global variable emptyString ->
-	tclEmptyString because it is no longer static.
-	* generic/tclPkg.c: Fix for panic when library is loaded on a
-	platform without backlinking without proper use of stubs. [Bug 476537]
-
-2002-02-22  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tests/regexpComp.test: updated regexp-11.[1-4] to match changes in
-	regexp.test for new regsub syntax
-
-	* unix/configure:
-	* unix/tcl.m4: added --enable-64bit support for AIX-4 (using -q64
-	flag) when using IBM's xlc compiler.
-
-	* tests/safe.test: updated safe-8.5 and safe-8.7
-	* library/safe.tcl (CheckFileName): removed the limit on
-	sourceable file names (was only *.tcl or tclIndex files with no more
-	than one dot and 14 chars). There is enough internal protection in a
-	safe interpreter already. [Tk Bug 521560]
-
-2002-02-22  Miguel Sofer  <msofer@users.sourceforge.net>
-
-	* generic/tclCompCmds: [FR 465811]. Optimising [if], [for] and [while]
-	for constant conditions; in addition, [for] and [while] are now
-	compiled with the "loop rotation" optimisation (thanks to Kevin
-	Kenny).
-
-2002-02-22  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	--- TIP#76 CHANGES ---
-	* generic/tclCmdMZ.c (Tcl_RegsubObjCmd): Final-argument-less
-	[regsub] returns the modified string.
-	* doc/regsub.n: Updated docs.
-	* tests/regexp.test: Updated and added tests.
-
-	* compat/strtoll.c (strtoll):
-	* compat/strtoull.c (strtoull):
-	* unix/tclUnixPort.h:
-	* win/tclWinPort.h: Const-ing 64-bit compatibility declarations. Note
-	that the return pointer is non-const because it is entirely legal for
-	the functions to be called from somewhere that owns the string being
-	passed. Fixes problem reported by Larry Virden.
-
-2002-02-21  David Gravereaux <davygrvy@pobox.com>
-
-	* win/mkd.bat (removed):
-	* win/coffbase.txt (new):
-	* win/makefile.bc:
-	* win/makefile.vc:  Changed the 'setup' target to stop using the
-	mkd.bat file and just make the directory right in the rule. Same
-	change to makefile.bc. Neither configure.in nor Makefile.in use it.
-
-	coffbase.txt will be the master list for our "prefered base addresses"
-	set by the linker. This should improve load-time (NT only) by avoiding
-	relocations. Submissions to the list by extension authors are
-	encouraged.
-
-	Added a 'tidy' target to compliment 'clean' and 'hose' to remove just
-	the outputs. Also removed the $(winlibs) macro as it wasn't being
-	used.
-
-	Stuff left to do:
-	1) get the winhelp target to stop building in the tools/ directory.
-	2) stop using rmd.bat
-	3) add more dependacy rules.
-
-	* win/tclAppInit.c:  Reverted back to -r1.6, as the header file change
-	to tclPort.h won't allow for easy embedded support outside of the
-	source dist. Thanks to Don Porter for pointing this out to me.
-
-2002-02-21  David Gravereaux <davygrvy@pobox.com>
-
-	* win/makefile.vc:
-	* win/rules.vc:  Added a new "loimpact" option that sets the
-	-ws:aggressive linker option. Off by default. It's said to keep the
-	heap use low at the expense of alloc speed.
-
-	* win/tclAppInit.c: Changed #include "tcl.h" to be tclPort.h to remove
-	the raw windows.h include. tclPort.h brings in windows.h already and
-	lessens the pre-compiled-header mush and the randomly useless #pragma
-	comment (lib,...) references throughout the big windows.h tree (as
-	observed at high linker warning levels).
-
-2002-02-21  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tcl.h: Better guessing of LP64/ILP32 architecture, but now
-	sensitive to presence of (suitable) <limits.h>
-
-2002-02-20  Don Porter <dgp@users.sourceforge.net>
-
-	* generic/tcl.decls (Tcl_RegExpRange,Tcl_GetIndexFromObjStruct):
-	Overlooked a few source incompatibilities. Now using CONST84.
-	* generic/tclDecls.h: make genstubs
-	* generic/tcl.h (Tcl_CmdObjTraceProc): silence warning from Sun
-	Workshop compiler.
-
-2002-02-20  David Gravereaux <davygrvy@pobox.com>
-
-	* win/buildall.vc.bat:
-	* win/makefile.vc:
-	* win/rules.vc: General clean-ups. Added compiler and linker tests for
-	a) the pentium 0x0F errata, b) optimizing (not all have this), and c)
-	linker v6 section alignment confusion. All these are tested first to
-	make sure any D4002 or LNK1117 warnings aren't displayed. The pentium
-	0x0F errata is a recommended switch. The v5 linker's section alignment
-	default is 512, but the v6 linker was changed to 4096 in an attempt to
-	speed loading on Win98. I changed the default to always be 512 across
-	both linkers, unless linking statically, then 4096 is used for the
-	claimed speed effect. Using a 512 alignment saves 12k bytes of dead
-	space in the DLL.
-
-	Added IA64 B-stepping errata switch when the compiler supports it.
-
-	Added profiling to $(lflags) when requested and also removed the
-	explict -entry option as the default works fine as is.
-
-	Removed win/tclWinInit.c from the special case section to let it use
-	the common implicit rule as the $(EXTFLAGS) macro it had was never
-	referenced anywhere.
-
-2002-02-20  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tcl.h: Added code to guess the correct settings for
-	TCL_WIDE_INT_IS_LONG and TCL_WIDE_INT_TYPE when configure doesn't tell
-	us them, as can happen with extensions.
-
-2002-02-19  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/format.n: Updated docs to list the specification.
-	* generic/tclCmdAH.c (Tcl_FormatObjCmd): Made behaviour on 64-bit
-	platforms correctly meet the specification, that %d works with the
-	native word-sized integer, instead of trying to guess (wrongly)
-	from the value being passed.
-
-2002-02-19  Don Porter <dgp@users.sourceforge.net>
-
-	* changes: First draft of updated changes for 8.4a4 release.
-
-2002-02-15  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/tclUnixPort.h: add strtoll/strtoull declarations for
-	platforms that do not define them.
-
-	* generic/tclIndexObj.c (STRING_AT): removed ptrdiff_t cast and
-	use of VOID* in default case (GNU-ism).
-
-2002-02-15  Kevin Kenny  <kennykb@acm.org>
-
-	* compat/strtoll.c:
-	* compat/strtoul.c:
-	* compat/strtoull.c:
-	* generic/tclIOUtil.c:
-	* generic/tclPosixStr.c:
-	* generic/tclTest.c:
-	* generic/tclTestObj.c:
-	* tests/get.test:
-	* win/Makefile.vc: Further tweaks to the TIP 72 patch to make it
-	compile under VC++.
-
-2002-02-15  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* tclExecute.c:
-	* tclIOGT.c:
-	* tclIndexObj.c: Touchups to the TIP 72 patch to make it compileable
-	under Windows again. The changes are not complete, there is one nasty
-	regarding _stati64
-
-2002-02-15  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	+----------------------+
-	| TIP #72 IMPLEMENTED. |
-	+----------------------+
-
-	There are a lot of changes from this TIP, so please see
-	http://purl.org/tcl/tip/72.html for discussion of
-	backward-compatibility issues, but the main ones modifications are in:
-
-	* generic/tcl.h: New types.
-	* generic/tcl.decls: New public functions.
-	* generic/tclExecute.c: 64-bit aware bytecode engine.
-	* generic/tclBinary.c: 64-bit handling in [binary] command.
-	* generic/tclScan.c: 64-bit handling in [scan] command.
-	* generic/tclCmdAH.c: 64-bit handling in [file] and [format]
-	commands.
-	* generic/tclBasic.c: New "wordSize" entry in ::tcl_platform.
-	* generic/tclFCmd.c: Large-file support (with many consequences.)
-	* generic/tclIO.c: Large-file support (with many consequences.)
-	* compat/strtoll.c, compat/strtoull.c: New support functions.
-	* unix/tcl.m4, unix/configure: 64-bit support and greatly enhanced
-	cacheing.
-
-	Most other changes, including all those in doc/* and test/* as well as
-	the majority in the platform directories, follow on from these.
-
-	Also coming out of the woodwork:
-	* generic/tclIndex.c: Better support for Cray PVP.
-	* win/tclWinMtherr.c: Better Borland support.
-
-	Note that, in a number of places through the Unix part of the platform
-	support, there are Tcl_Platform* references. These are expanded into
-	the correct way to call that particular underlying function, i.e. with
-	or without a '64' suffix, and should be used by people working on the
-	core in preference to the API functions they overlay so that the code
-	remains portable depending on the presence or absence of 64-bit
-	support on the underlying platform.
-
-	***POTENTIAL INCOMPATIBILITY***: Extracted from the TIP
-
-	SUMMARY OF INCOMPATIBILITIES AND FIXES
-	======================================
-
-	The behaviour of expressions containing constants that appear positive
-	but which have a negative internal representation will change, as
-	these will now usually be interpreted as wide integers. This is always
-	fixable by replacing the constant with int(constant).
-
-	Extensions creating new channel types will need to be altered as
-	different types are now in use in those areas. The change to the
-	declaration of Tcl_FSStat and Tcl_FSLstat (which are the new preferred
-	API in any case) are less serious as no non-alpha releases have been
-	made yet with those API functions.
-
-	Scripts that are lax about the use of the l modifier in format and
-	scan will probably need to be rewritten. This should be very uncommon
-	though as previously it had absolutely no effect.
-
-	Extensions that create new math functions that take more than one
-	argument will need to be recompiled (the size of Tcl_Value changes),
-	and functions that accept arguments of any type (TCL_EITHER) will need
-	to be rewritten to handle wide integer values. (I do not expect this
-	to affect many extensions at all.)
-
-2002-02-14  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* generic/tclIOCmd.c (Tcl_GetsObjCmd): Trivial fix for [Bug 517503], a
-	memory leak reported by Miguel Sofer <msofer@users.sf.net>. The leak
-	happens if an error occurs for "set var [gets $chan]" and leak one
-	empty object.
-
-2002-02-12  David Gravereaux <davygrvy@pobox.com>
-
-	* djgpp/ (new directory)
-	* djgpp/Makefile (new):
-	* unix/tclAppInit.c:
-	* unix/tclMtherr.c:
-	* unix/tclUnixFCmd.c:
-	* unix/tclUnixFile.c:
-	* unix/tclUnixInit.c:
-	* unix/tclUnixPort.h:  Early stage of DJGPP support for building Tcl
-	on DOS. Dynamic loading isn't working, yet. Requires watt32 for the
-	TCP/IP stack. No autoconf, yet. Barely tested, but makes a working exe
-	that runs Tcl in protected-mode, flat memory. [exec] and pipes will
-	need the most work as multi-tasking on DOS has to be carefully.
-
-2002-02-10  Kevin Kenny  <kennykb@acm.org>
-
-	* doc/CrtObjCmd.3:
-	* doc/CrtTrace.3:
-	* generic/tcl.decls:
-	* generic/tcl.h:
-	* generic/tclBasic.c:
-	* generic/tclInt.h:
-	* generic/tclTest.c:
-	* tests/basic.test: Added Tcl_CreateObjTrace,
-	Tcl_GetCommandInfoFromToken and Tcl_SetCommandInfoFromToken.
-	(TIPs #32 and #79.)
-
-	* generic/tclDecls.h:
-	* generic/tclStubInit.c: Regenerated Stubs tables.
-
-2002-02-08  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/configure:
-	* unix/tcl.m4: added -pthread for FreeBSD to EXTRA_CFLAGS and
-	LDFLAGS. Also triggered nodots only for FreeBSD-3. Added
-	AC_DEFINE(_POSIX_PTHREAD_SEMANTICS) for Solaris.
-
-	* unix/tclUnixPort.h:
-	* unix/tclUnixThrd.c: added thread-safe versions of readdir,
-	localtime, gmtime and inet_ntoa for threaded build. (jgdavidson)
-
-	* generic/tclScan.c (Tcl_ScanObjCmd): prevented ckfree being called on
-	a pointer to NULL.
-
-2002-02-07  Don Porter <dgp@users.sourceforge.net>
-
-	* doc/DString.3:
-	* doc/Encoding.3:
-	* doc/GetCwd.3:
-	* doc/SplitPath.3:
-	* doc/Translate.3:
-	* doc/Utf.3:
-	* generic/tcl.decls:
-	* generic/tcl.h:
-	* generic/tclEncoding.c:
-	* generic/tclEnv.c:
-	* generic/tclFileName.c:
-	* generic/tclIOUtil.c:
-	* generic/tclUtf.c:
-	* generic/tclUtil.c:
-	* mac/tclMacInit.c:
-	* unix/tclUnixFile.c:
-	* unix/tclUnixInit.c:
-	* unix/tclUnixPipe.c:
-	* win/tclWin32Dll.c:
-	* win/tclWinFCmd.c:
-	* win/tclWinFile.c:
-	* win/tclWinInit.c: Partial TIP 27 rollback. Following routines
-	restored to return (char *): Tcl_DStringAppend,
-	Tcl_DStringAppendElement, Tcl_JoinPath, Tcl_TranslateFileName,
-	Tcl_ExternalToUtfDString, Tcl_UtfToExternalDString,
-	Tcl_UniCharToUtfDString, Tcl_GetCwd, Tcl_WinTCharToUtf. Also restored
-	Tcl_WinUtfToTChar to return (TCHAR *) and Tcl_UtfToUniCharDString to
-	return (Tcl_UniChar *). Modified some callers. This change recognizes
-	that Tcl_DStrings are de-facto white-box objects.
-
-	* generic/tclDecls.h:
-	* generic/tclPlatDecls.h: make genstubs
-
-	* generic/tclCmdMZ.c: corrected use of C++-style comment.
-
-2002-02-06  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tests/scan.test:
-	* generic/tclScan.c (Tcl_ScanObjCmd): corrected scan 0x... %x handling
-	that didn't accept the 0x as a prelude to a base 16 number. [Bug
-	495213]
-
-	* generic/tclCompCmds.c (TclCompileRegexpCmd): made early check for
-	bad RE to stop checking further.
-
-	* generic/tclCmdMZ.c (Tcl_RegsubObjCmd): added special case to search
-	for simple 'string map' style regsub calls. Delayed creation of
-	resultPtr object until an initial match is made, as the input string
-	object can then be reused for no matches.
-	(Tcl_StringObjCmd): optimization improvements to the STR_MAP
-	algorithm for zero-length and nocase cases.
-
-	* tests/regexp.test:
-	* tests/regexpComp.test: extra code coverage tests.
-
-	* tests/string.test: added 10.18 and 10.19 extra tests.
-
-	* generic/regc_locale.c (casecmp): slight performance improvement.
-
-2002-02-05  Don Porter <dgp@users.sourceforge.net>
-
-	* library/http/http.tcl:
-	* library/http/pkgIndex.tcl:  Corrected use of http::error when
-	::error was intended. Bump to http 2.4.2.
-
-2002-02-04  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* unix/tclUnixChan.c (FileOutputProc): Fixed [bug 465765] reported by
-	Dale Talcott <daletalcott@users.sourceforge.net>. Avoid writing
-	nothing into a file as STREAM based implementations will consider this
-	a EOF (if the file is a pipe). Not done in the generic layer as this
-	type of writing is actually useful to check the state of a socket.
-
-	* doc/open.n: Fixed [Bug 511540], added cross-reference to 'pid' as
-	the command to use to retrieve the pid of a command pipeline created
-	via 'open'.
-
-2002-02-01  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclCmdMZ.c (Tcl_RegexpObjCmd): handle quirky about case
-	earlier to avoid shimmering problem.
-
-2002-02-01  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* tests/io.test: io-39.22 split into two tests, one platform
-	dependent, the other not. -eofchar is not empty on the windows
-	platform.
-
-2002-02-01  Vince Darley <vincentdarley@users.sourceforge.net>
-
-	* generic/tclTest.c: fix to picky windows compiler problem with the
-	'MainLoop' function declaration.
-
-2002-01-31  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* win/tclWinFCmd.c: TIP 27: Applied patch fixing CONST warnings on
-	behalf of Don Porter <dgp@users.sourceforge.net>.
-
-2002-01-30  Don Porter <dgp@users.sourceforge.net>
-
-	* generic/tcl.decls:
-	* generic/tcl.h:
-	* generic/tclInt.h: For each interface identified in the TIP 27
-	changes below as a POTENTIAL INCOMPATIBILITY, the source of the
-	incompatibility has been parameterized so that it can be removed. When
-	compiling extension code against the Tcl header files, use the
-	compiler flag -DUSE_NON_CONST to remove the irresolvable source
-	incompatibilities introduced by the TIP 27 changes. Resolvable changes
-	are left for extension authors to resolve.
-	* generic/tclDecls.h: make genstubs
-
-2002-01-30  Vince Darley <vincentdarley@users.sourceforge.net>
-
-	* doc/FileSystem.3: added documentation for 3 public functions which
-	had been overlooked. [Bug 507701]
-	* unix/mkLinks: make mklinks
-
-2002-01-29  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tests/regexpComp.test:
-	* generic/tclCompCmds.c (TclCompileRegexpCmd): enhanced to support
-	-nocase and -- options.
-
-2002-01-28  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/tcl.m4 (SC_LOAD_TCLCONFIG):
-	* win/tcl.m4 (SC_LOAD_TCLCONFIG): Set TCL_LIB_SPEC, TCL_STUB_LIB_SPEC,
-	and TCL_STUB_LIB_PATH to the values of TCL_BUILD_LIB_SPEC,
-	TCL_BUILD_STUB_LIB_SPEC, and TCL_BUILD_STUB_LIB_PATH when tclConfig.sh
-	is loaded from the build directory. A Tcl extension should make use of
-	the non-build versions of these variables since they will work in both
-	cases. This modification was described in TIP 34.
-
-2002-01-28  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/tclWinReg.c (regConnectRegistryProc,RecursiveDeleteKey)
-	(DeleteKey,GetKeyNames,GetType,GetValue,OpenSubKey,SetValue):
-	redid the CONSTification as previous changes caused failing tests.
-
-	* tests/regexpComp.test (new):
-	* generic/tclInt.h:
-	* generic/tclBasic.c: added TclCompileRegexpCmd entry
-	* generic/tclCompCmds.c (TclCompileStringCmd): corrected to return
-	TCL_OUT_LINE_COMPILE instead of TCL_ERROR for parsing errors, so
-	it only throws the error for runtime compile, in case the user
-	modifies 'string'.
-	(TclCompileRegexpCmd): first try at a byte-compiled regexp command. It
-	handles static strings and ^$ bounded static strings.
-	(TclCompileAppendCmd): made TclPushVarName call always use
-	TCL_CREATE_VAR as numWords is always > 2 at that point.
-
-	* generic/tclExecute.c (TclExecuteByteCode:INST_LIST): correct
-	possibly dangerous decr in macro call.
-
-	* win/tclWinInit.c (TclpFindVariable): CONSTification touch-up
-
-	* win/tclWinReg.c (OpenSubKey): corrected bug introduced in
-	CONSTification that dropped pointer reference.
-
-	* ChangeLog.2000 (new file):
-	* ChangeLog: broke changes from 2000 into ChangeLog.2000 to reduce
-	size of the main ChangeLog.
-
-2002-01-28  David Gravereaux <davygrvy@pobox.com>
-
-	* generic/tclPlatDecls.h:  Added preprocessor logic to force a
-	typedef of TCHAR when __STDC__ is defined when using the uncommon
-	-Za compiler switch with the microsoft compiler.
-
-2002-01-27  Don Porter <dgp@users.sourceforge.net>
-
-	* doc/package.n: Documented global namespace context for script
-	evaluation by [package require].
-
-2002-01-27  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclInt.decls:
-	* generic/tclIntPlatDecls.h:
-	* mac/tclMacChan.c:
-	* mac/tclMacFCmd.c:
-	* mac/tclMacFile.c:
-	* mac/tclMacInit.c:
-	* mac/tclMacLoad.c:
-	* mac/tclMacResource.c:
-	* mac/tclMacSock.c: TIP 27 CONSTification induced changes
-
-	* tests/event.test:
-	* tests/main.test: added catches/constraints to test that
-	use features that don't exist on the mac.
-
-2002-01-25  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	Make -eofchar and -translation options read only for server sockets.
-	[Bug 496733]
-
-	* generic/tclIO.c (Tcl_GetChannelOption, Tcl_SetChannelOption):
-	Instead of returning nothing for the -translation option on a server
-	socket, always return "auto". Return the empty string enclosed in
-	quotes for the -eofchar option on a server socket. Fixup -eofchar
-	usage message so that it matches the implementation.
-	* tests/io.test: Add -eofchar tests and -translation tests to ensure
-	options are read only on server sockets.
-	* tests/socket.test: Update tests to account for -eofchar and
-	-translation option changes.
-
-2002-01-25  Don Porter <dgp@users.sourceforge.net>
-
-	* compat/strstr.c (strstr):
-	* generic/tclCmdAH.c (Tcl_FormatObjCmd):
-	* generic/tclCmdIL.c (InfoNameOfExecutableCmd):
-	* generic/tclEnv.c (ReplaceString):
-	* generic/tclFileName.c (ExtractWinRoot):
-	* generic/tclIO.c (FlushChannel,Tcl_BadChannelOption):
-	* generic/tclStringObj.c (AppendUnicodeToUtfRep):
-	* generic/tclThreadTest.c (TclCreateThread):
-	* generic/tclUtf.c (Tcl_UtfPrev):
-	* mac/tclMacFCmd.c (TclpObjListVolumes):
-	* mac/tclMacResource.c (TclMacRegisterResourceFork,
-	(BuildResourceForkList):
-	* win/tclWinInit.c (AppendEnvironment):  Sought out and eliminated
-	instances of CONST-casting that are no longer needed after the
-	TIP 27 effort.
-
-	* Following is [Patch 501006]
-	* generic/tclInt.decls (Tcl_AddInterpResolvers, Tcl_Export,
-	(Tcl_FindNamespace, Tcl_GetInterpResolvers, Tcl_ForgetImport,
-	(Tcl_Import, Tcl_RemoveInterpResolvers):
-	* generic/tclNamesp.c (Tcl_Export, Tcl_Import, Tcl_ForgetImport,
-	(Tcl_FindNamespace):
-	* generic/tclResolve.c (Tcl_AddInterpResolvers,Tcl_GetInterpResolvers,
-	(Tcl_RemoveInterpResolvers): Updated APIs in generic/tclResolve.c and
-	generic/tclNamesp.c according to the guidelines of TIP 27.
-	* generic/tclIntDecls.h: make genstubs
-
-	* Following is [Patch 505630]
-	* doc/AddErrorInfo.3:
-	* generic/tcl.decls (Tcl_LogCommandInfo):
-	* generic/tclBasic.c (Tcl_LogCommandInfo): Updated interfaces
-	of generic/tclBasic.cc according to TIP 27.
-	* generic/tclDecls.h: make genstubs
-
-	* Following is [Patch 506818]
-	* doc/Hash.3:
-	* generic/tcl.decls (Tcl_HashStats):
-	* generic/tclHash.c (Tcl_HashStats):  Updated APIs of generic/tclHash.c
-	according to guidelines of TIP 27.
-	* generic/tclDecls.h: make genstubs
-	* generic/tclVar.c (Tcl_ArrayObjCmd): Updated callers.
-
-	* Following is [Patch 506807]
-	* doc/ObjectType.3:
-	* generic/tcl.decls (Tcl_GetObjType):
-	* generic/tclObj.c (Tcl_GetObjType): Updated APIs of generic/tclObj.c
-	according to guidelines of TIP 27.
-	* generic/tclDecls.h: make genstubs
-
-	* Following is [Patch 507304]
-	* doc/Encoding.3:
-	* generic/tcl.decls (Tcl_WinUtfToTChar,Tcl_WinTCharToUtf):
-	* win/tclWin32Dll.c (Tcl_WinUtfToTChar,Tcl_WinTCharToUtf):
-	Updated interfaces in win/tclWin32Dll.c according to TIP 27.
-	* generic/tclPlatDecls.h: make genstubs
-	* generic/tclIOUtil.c (TclpNativeToNormalized):
-	* win/tclWinFCmd.c (TclpObjNormalizePath):
-	* win/tclWinFile.c (TclpFindExecutable,TclpMatchInDirectory,
-	(NativeIsExec,NativeStat):
-	* win/tclWinLoad.c (TclpLoadFile):
-	* win/tclWinPipe.c (TclpOpenFile,ApplicationType):
-	* win/tclWinReg.c (regConnectRegistryProc,RecursiveDeleteKey,DeleteKey,
-	(GetKeyNames,GetType,GetValue,OpenSubKey,SetValue):
-	* win/tclWinSerial.c (SerialSetOptionProc): Update callers.
-
-	* Following is [Patch 505072]
-	* doc/Concat.3:
-	* doc/Encoding.3:
-	* doc/Filesystem.3:
-	* doc/Macintosh.3:
-	* doc/OpenFileChnl.3
-	* doc/SetResult.3:
-	* doc/SetVar.3:
-	* doc/SplitList.3:
-	* doc/SplitPath.3:
-	* doc/Translate.3:
-	* generic/tcl.h (Tcl_FSMatchInDirectoryProc):
-	* generic/tclInt.h (TclpMatchInDirectory):
-	* generic/tcl.decls (Tcl_Concat,Tcl_GetStringResult,Tcl_GetVar,
-	(Tcl_GetVar2,Tcl_JoinPath,Tcl_Merge,Tcl_OpenCommandChannel,Tcl_SetVar,
-	(Tcl_SetVar2,Tcl_SplitList,Tcl_SplitPath,Tcl_TranslateFileName,
-	(Tcl_ExternalToUtfDString,Tcl_GetEncodingName,Tcl_UtfToExternalDString,
-	(Tcl_GetDefaultEncodingDir,Tcl_SetDefaultEncodingDir,
-	(Tcl_FSMatchInDirectory,Tcl_MacEvalResource,Tcl_MacFindResource):
-	* generic/tclInt.decls (TclCreatePipeline,TclGetEnv,TclpGetCwd,
-	(TclpCreateProcess):
-	* mac/tclMacFile.c (TclpGetCwd):
-	* generic/tclEncoding.c (Tcl_GetDefaultEncodingDir,
-	(Tcl_SetDefaultEncodingDir,Tcl_GetEncodingName,
-	(Tcl_ExternalToUtfDString,Tcl_UtfToExternalDString, OpenEncodingFile,
-	(LoadEscapeEncoding):
-	* generic/tclFileName.c (DoTildeSubst,Tcl_JoinPath,Tcl_SplitPath,
-	(Tcl_TranslateFileName):
-	* generic/tclIOUtil.c (Tcl_FSMatchInDirectory):
-	* generic/tclPipe.c (FileForRedirect,TclCreatePipeline,
-	(Tcl_OpenCommandChannel):
-	* generic/tclResult.c (Tcl_GetStringResult):
-	* generic/tclUtil.c (Tcl_Concat,Tcl_SplitList,Tcl_Merge):
-	* generic/tclVar.c (Tcl_GetVar,Tcl_GetVar2,Tcl_SetVar,Tcl_SetVar2):
-	* mac/tclMacResource.c (Tcl_MacEvalResource,Tcl_MacFindResource):
-	Updated interfaces of generic/tclEncoding, generic/tclFilename.c,
-	generic/tclIOUtil.c, generic/tclPipe.c, generic/tclResult.c,
-	generic/tclUtil.c, generic/tclVar.c and mac/tclMacResource.c according
-	to TIP 27. Tcl_TranslateFileName rewritten as wrapper around VFS-aware
-	version.
-	***POTENTIAL INCOMPATIBILITY***
-	Includes source incompatibilities: argv arguments of Tcl_Concat,
-	Tcl_JoinPath, Tcl_OpenCommandChannel, Tcl_Merge; argvPtr arguments of
-	Tcl_SplitList and Tcl_SplitPath.
-	* generic/tclDecls.h:
-	* generic/tclIntDecls.h: make genstubs
-
-	* generic/tclCkalloc.c (MemoryCmd):
-	* generic/tclClock.c (FormatClock):
-	* generic/tclCmdAH.c (Tcl_CaseObjCmd,Tcl_EncodingObjCmd,Tcl_FileObjCmd):
-	* generic/tclCmdIL.c (InfoLibraryCmd,InfoPatchLevelCmd,
-	(InfoTclVersionCmd):
-	* generic/tclCompCmds.c (TclCompileForeachCmd):
-	* generic/tclCompCmds.h (TclCompileForeachCmd):
-	* generic/tclCompile.c (TclFindCompiledLocal):
-	* generic/tclEnv.c (TclSetupEnv,TclSetEnv,Tcl_PutEnv,TclGetEnv,
-	(EnvTraceProc):
-	* generic/tclEvent.c (Tcl_BackgroundError):
-	* generic/tclIO.c (Tcl_BadChannelOption,Tcl_SetChannelOption):
-	* generic/tclIOCmd.c (Tcl_ExecObjCmd,Tcl_OpenObjCmd):
-	* generic/tclIOSock.c (TclSockGetPort):
-	* generic/tclIOUtil.c (SetFsPathFromAny):
-	* generic/tclLink.c (LinkTraceProc):
-	* generic/tclMain.c (Tcl_Main):
-	* generic/tclNamesp.c (TclTeardownNamespace):
-	* generic/tclProc.c (TclCreateProc):
-	* generic/tclTest.c (TestregexpObjCmd,TesttranslatefilenameCmd,
-	(TestchmodCmd,GetTimesCmd,TestsetCmd,TestOpenFileChannelProc1,
-	(TestOpenFileChannelProc2,TestOpenFileChannelProc3,AsyncHandlerProc,
-	(TestpanicCmd):
-	* generic/tclThreadTest.c (ThreadErrorProc,ThreadEventProc):
-	* generic/tclUtil.c (TclPrecTraceProc):
-	* mac/tclMacFCmd.c (GetFileSpecs):
-	* mac/tclMacFile.c (TclpMatchInDirectory):
-	* mac/tclMacInit.c (TclpInitLibraryPath,Tcl_SourceRCFile):
-	* mac/tclMacOSA.c (tclOSAStore,tclOSALoad):
-	* mac/tclMacResource.c (Tcl_MacEvalResource):
-	* unix/tclUnixFCmd.c (TclpObjNormalizePath):
-	* unix/tclUnixFile.c (TclpMatchInDirectory,TclpGetUserHome,TclpGetCwd,
-	(TclpReadLink):
-	* unix/tclUnixInit.c (TclpInitLibraryPath,TclpSetVariables,
-	(Tcl_SourceRCFile):
-	* unix/tclUnixPipe.c (TclpOpenFile,TclpCreateTempFile,
-	(TclpCreateProcess):
-	* win/tclWinFile.c (TclpGetCwd,TclpMatchInDirectory):
-	* win/tclWinInit.c (TclpInitLibraryPath,Tcl_SourceRCFile,
-	(TclpSetVariables):
-	* win/tclWinPipe.c (TclpCreateProcess): Updated callers.
-
-2002-01-24  Don Porter <dgp@users.sourceforge.net>
-
-	* generic/tclIOUtil.c (SetFsPathFromAny):  Corrected tilde-substitution
-	of pathnames where > 1 separator follows the ~. [Bug 504950]
-
-2002-01-24  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* library/http/pkgIndex.tcl:
-	* library/http/http.tcl: don't add port in default case to handle
-	broken servers. http bumped to 2.4.1  [Bug 504508]
-
-2002-01-23  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* unix/mkLinks: Regenerated.
-	* doc/CrtChannel.3:
-	* doc/ChnlStack.3: Moved documentation for 'Tcl_GetTopChannel' from
-	'CrtChannel' to 'ChnlStack'. Added documentation of
-	'Tcl_GetStackedChannel'. [Bug 506147] reported by Mark Patton
-	<msp@users.sourceforge.net>.
-
-2002-01-23  Don Porter <dgp@users.sourceforge.net>
-
-	* win/tclWinFile.c (NativeAccess,NativeStat,NativeIsExec,
-	(TclpGetUserHome):
-	* win/tclWinPort.h (TclWinSerialReopen):
-	* win/tclWinSerial.c (TclWinSerialReopen):
-	* win/tclWinSock.c (Tcl_OpenTcpServer):  Corrections to earlier TIP 27
-	changes. Thanks to Andreas Kupries for the feedback.
-	* generic/tclPlatDecls.h: make genstubs
-
-	* doc/GetHostName.3:
-	* doc/GetOpnFl.3:
-	* doc/OpenTcp.3:
-	* tcl.decls (Tcl_GetHostName,Tcl_GetOpenFile,Tcl_OpenTcpClient,
-	(Tcl_OpenTclServer):
-	* mac/tclMacSock.c (CreateSocket,Tcl_OpenTcpClient,Tcl_OpenTcpServer,
-	(Tcl_GetHostName,GetHostFromString):
-	* unix/tclUnixChan.c (CreateSocket,CreateSocketAddress,
-	(Tcl_OpenTcpClient,Tcl_OpenTcpServer,Tcl_GetOpenFile):
-	* unix/tclUnixSock.c (Tcl_GetHostName):
-	* win/tclWinSock.c (CreateSocket,CreateSocketAddress,
-	(Tcl_OpenTcpClient,Tcl_OpenTcpServer,Tcl_GetHostName):
-	Updated socket interfaces according to TIP 27.
-	* generic/tclCmdIL.c (InfoHostnameCmd): Updated callers.
-	* generic/tclDecls.h: make genstubs
-
-2002-01-21  David Gravereaux <davygrvy@pobox.com>
-
-	* generic/tclLoadNone.c: TclpLoadFile() didn't match proto of typedef
-	Tcl_FSLoadFileProc. OK'd by vincentdarley. [Patch 502488]
-
-2002-01-21  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* generic/tclIO.c (WriteChars): Fix for [Bug 506297], reported by
-	Martin Forssen <ruric@users.sourceforge.net>. The encoding chosen in
-	the script exposing the bug writes out three intro characters when
-	TCL_ENCODING_START is set, but does not consume any input as
-	TCL_ENCODING_END is cleared. As some output was generated the
-	enclosing loop calls UtfToExternal again, again with START set. Three
-	more characters in the out and still no use of input ... To break this
-	infinite loop we remove TCL_ENCODING_START from the set of flags after
-	the first call (no condition is required, the later calls remove an
-	unset flag, which is a no-op). This causes the subsequent calls to
-	UtfToExternal to consume and convert the actual input.
-
-2002-01-21  Don Porter <dgp@users.sourceforge.net>
-
-	* generic/tclTest.c: Converted declarations of TestReport file system
-	to more portable form. [Bug 501417]
-
-	* generic/tcl.decls (Tcl_TraceCommand,Tcl_UntraceCommand,
-	(Tcl_CommandTraceInfo):
-	* generic/tclCmdMZ.c (Tcl_TraceCommand,Tcl_UntraceCommand,
-	(Tcl_CommandTraceInfo): Updated APIs in generic/tclCmdMZ.c according
-	to the guidelines of TIP 27.
-	* generic/tclDecls.h: make genstubs
-
-2002-01-18  Don Porter <dgp@users.sourceforge.net>
-
-	* win/tclWinChan.c:
-	* win/tclWinFCmd.c:
-	* win/tclWinFile.c: Overlooked callers of Tcl_FSGetNativePath
-
-	* win/tclWinDde.c:
-	* win/tclWinReg.c: Overlooked callers of Tcl_GetIndexFromObj
-
-2002-01-18  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclThreadTest.c:
-	* mac/tclMacChan.c:
-	* mac/tclMacFCmd.c:
-	* mac/tclMacFile.c:
-	* mac/tclMacLoad.c:
-	* mac/tclMacResource.c: TIP 27 CONSTification broke the mac build in a
-	number of places.
-
-2002-01-17  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* generic/tclIOCmd.c (Tcl_GetsObjCmd): Fixed [Bug 504642] as reported
-	by Brian Griffin <bgriffin@users.sourceforge.net>, using his
-	patch. Before the patch the generic I/O layer held an unannounced
-	reference to the interp result to store the read line into. This
-	unfortunately has disastrous results if the channel driver executes a
-	tcl script to perform its operation, this freeing the interp
-	result. In that case we are dereferencing essentially a dangling
-	reference. It is not truly dangling because the object is in the free
-	list, but this only causes us to smash the free list and have the
-	error occur later somewhere else. The patch simply creates a new
-	object for the line and later sets it into the interp result when we
-	are done with reading.
-
-2002-01-16  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/tcl.m4 (SC_LOAD_TCLCONFIG):
-	* win/tcl.m4 (SC_LOAD_TCLCONFIG): Subst TCL_DBGX into
-	TCL_STUB_LIB_FILE and TCL_STUB_LIB_FLAG variables so that an extension
-	does not need to subst TCL_DBGX into its makefile. [Tk Bug 504356]
-
-2002-01-16  Don Porter <dgp@users.sourceforge.net>
-
-	* doc/FileSystem.3:
-	* doc/GetCwd.3:
-	* doc/GetIndex.3:
-	* generic/tcl.decls (Tcl_GetIndexFromObj, Tcl_GetIndexFromObjStruct,
-	(Tcl_GetCwd, Tcl_FSFileAttrStrings, Tcl_FSGetNativePath,
-	(Tcl_FSGetTranslatedStringPath):
-	* generic/tcl.h (Tcl_FSFileAttrStringsProc):
-	* generic/tclFCmd.c (TclFileAttrsCmd):
-	* generic/tclIOUtil.c (Tcl_GetCwd,NativeFileAttrStrings,
-	(Tcl_FSFileAttrStrings,Tcl_FSGetTranslatedStringPath,
-	(Tcl_FSGetNativePath):
-	* generic/tclIndexObj.c (Tcl_GetIndexFromObj,
-	(Tcl_GetIndexFromObjStruct):
-	More TIP 27 updates in tclIOUtil.c and tclIndexObj.c that were
-	overlooked before. [Patch 504671]
-	***POTENTIAL INCOMPATIBILITY***
-	Includes a source incompatibility in the tablePtr arguments of the
-	Tcl_GetIndexFromObj* routines.
-	* generic/tclDecls.h: make genstubs
-
-	* generic/tclBinary.c (Tcl_BinaryObjCmd):
-	* generic/tclClock.c (Tcl_ClockObjCmd):
-	* generic/tclCmdAH.c (Tcl_EncodingObjCmd, Tcl_FileObjCmd):
-	* generic/tclCmdIL.c (Tcl_InfoObjCmd,Tcl_LsearchObjCmd,Tcl_LsortObjCmd):
-	* generic/tclCmdMZ.c (Tcl_TraceObjCmd,Tcl_RegexpObjCmd,Tcl_RegsubObjCmd,
-	(Tcl_StringObjCmd,Tcl_SubstObjCmd,Tcl_SwitchObjCmd,
-	(TclTraceCommandObjCmd,TclTraceVariableObjCmd):
-	* generic/tclCompCmds.c (TclCompileStringCmd):
-	* generic/tclEvent.c (Tcl_UpdateObjCmd):
-	* generic/tclFileName.c (Tcl_GlobObjCmd):
-	* generic/tclIO.c (Tcl_FileEventObjCmd):
-	* generic/tclIOCmd.c (Tcl_SeekObjCmd,Tcl_ExecObjCmd,Tcl_SocketObjCmd,
-	(Tcl_FcopyObjCmd):
-	* generic/tclInterp.c (Tcl_InterpObjCmd,SlaveObjCmd):
-	* generic/tclNamesp.c (Tcl_NamespaceObjCmd):
-	* generic/tclPkg.c (Tcl_PackageObjCmd):
-	* generic/tclTest.c (Tcltest_Init,TestencodingObjCmd,TestgetplatformCmd,
-	(TestlocaleCmd,TestregexpObjCmd,TestsaveresultCmd,
-	(TestGetIndexFromObjStructObjCmd,TestReportFileAttrStrings):
-	* generic/tclTestObj.c (TestindexObjCmd,TeststringObjCmd):
-	* generic/tclTimer.c (Tcl_AfterObjCmd):
-	* generic/tclVar.c (Tcl_ArrayObjCmd):
-	* mac/tclMacFCmd.c (SetFileFinderAttributes):
-	* unix/tclUnixChan.c (TclpOpenFileChannel):
-	* unix/tclUnixFCmd.c (tclpFileAttrStrings):
-	* unix/tclUnixFile.c (TclpObjAccess,TclpObjChdir,TclpObjStat,
-	(TclpObjLstat):
-	* win/tclWinFCmd.c (tclpFileAttrStrings): Updated callers.
-
-	* doc/RegExp.3:
-	* doc/Utf.3:
-	* generic/tcl.decls:
-	* generic/tclInt.decls:
-	* generic/tclRegexp.c:
-	* generic/tclUtf.c:  Updated APIs in generic/tclUtf.c and
-	generic/tclRegexp.c according to the guidelines of TIP 27.
-	[Patch 471509]
-
-	* generic/regc_locale.c (element,cclass):
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd):
-	* generic/tclFileName.c (TclpGetNativePathType,SplitMacPath):
-	* generic/tclIO.c (ReadChars):
-	* mac/tclMacLoad.c (TclpLoadFile):
-	* win/tclWinFile.c (TclpGetUserHome): Updated callers.
-
-	* generic/tclDecls.h:
-	* generic/tclIntDecls.h: make genstubs
-
-	* doc/ParseCmd.3 (Tcl_ParseVar):
-	* generic/tcl.decls (Tcl_ParseVar):
-	* generic/tclParse.c (Tcl_ParseVar):
-	* generic/tclTest.c (TestparsevarObjCmd): Updated APIs in
-	generic/tclParse.c according to the guidelines of TIP 27. Updated
-	callers. [Patch 501046]
-	* generic/tclDecls.h: make genstubs
-
-	* generic/tcl.decls (Tcl_RecordAndEval):
-	* generic/tclDecls.h: make genstubs
-	* generic/tclHistory.c (Tcl_RecordAndEval): Updated APIs in
-	generic/tclHistory.c according to the guidelines of TIP 27.
-	[Patch 504091]
-
-	* doc/CrtSlave.3:
-	* generic/tcl.decls (Tcl_CreateAlias, Tcl_CreateAliasObj,
-	(Tcl_CreateSlave, Tcl_GetAlias, Tcl_GetAliasObj, Tcl_GetSlave):
-	* generic/tclInterp.c (Tcl_CreateAlias, Tcl_CreateAliasObj,
-	(Tcl_CreateSlave, Tcl_GetAlias, Tcl_GetAliasObj, Tcl_GetSlave):
-	Updated APIs in the file generic/tclInterp.c according to the
-	guidelines of TIP 27. [Patch 501371]
-	***POTENTIAL INCOMPATIBILITY***
-	Includes a source incompatibility in the targetCmdPtr arguments of the
-	Tcl_GetAlias* routines.
-
-	* generic/tclDecls.h: make genstubs
-
-2002-01-15  Don Porter <dgp@users.sourceforge.net>
-
-	* doc/SetErrno.3 (Tcl_ErrnoMsg): Corrected documentation for
-	Tcl_ErrnoMsg; it takes an integer argument. Thanks to Georgios
-	Petasis. [Bug 468183]
-
-	* doc/AddErrInfo.3 (Tcl_PosixError):
-	* doc/Eval.3 (Tcl_EvalFile):
-	* doc/FileSystem.c (Tcl_FSOpenFileChannel,Tcl_FSOpenFileChannelProc):
-	* doc/OpenFileChnl.3 (Tcl_OpenFileChannel):
-	* doc/SetErrno.3 (Tcl_ErrnoId,Tcl_ErrnoMsg):
-	* doc/Signal.3 (Tcl_SignalId,Tcl_SignalMsg):
-	* generic/tcl.decls (Tcl_ErrnoId,TclErrnoMsg,Tcl_EvalFile,
-	(Tcl_OpenFileChannel,Tcl_PosixError,Tcl_SignalId,Tcl_SignalMsg,
-	(Tcl_FSOpenFileChannel):
-	* generic/tcl.h (Tcl_FSOpenFileChannelProc):
-	* generic/tclIO.c (FlushChannel):
-	* generic/tclIOUtil.c (Tcl_OpenFileChannel,Tcl_EvalFile,TclGetOpenMode,
-	(Tcl_PosixError,Tcl_FSOpenFileChannel):
-	* generic/tclInt.decls (TclGetOpenMode):
-	* generic/tclInt.h (TclOpenFileChannelProc_,TclGetOpenMode,
-	(TclpOpenFileChannel):
-	* generic/tclPipe.c (TclCleanupChildren):
-	* generic/tclPosixStr.c (Tcl_ErrnoId,Tcl_ErrnoMsg,Tcl_SignalId,
-	(Tcl_SignalMsg):
-	* generic.tclTest.c (PretendTclpOpenFileChannel,
-	(TestOpenFileChannelProc1,TestOpenFileChannelProc2,
-	(TestOpenFileChannelProc3,TestReportOpenFileChannel):
-	* mac/tclMacChan.c (TclpOpenFileChannel):
-	* unix/tclUnixChan.c (TclpOpenFileChannel):
-	* win/tclWinChan.c (TclpOpenFileChannel): Updated APIs in
-	generic/tclIOUtil.c and generic/tclPosixStr.c according to the
-	guidelines of TIP 27. Updated callers. [Patch 499196]
-
-	* generic/tclDecls.h:
-	* generic/tclIntDecls.h: make genstubs
-
-	* doc/CrtChannel.3:
-	* doc/OpenFileChnl.3:
-	* generic/tcl.decls:
-	* generic/tclIO.h:
-	* generic/tclIO.c (DoWrite, Tcl_RegisterChannel, Tcl_GetChannel,
-	(Tcl_CreateChannel, Tcl_GetChannelName, CloseChannel, Tcl_Write,
-	(Tcl_WriteRaw, Tcl_Ungets, Tcl_BadChannelOption, Tcl_GetChannelOption,
-	(Tcl_SetChannelOption, Tcl_GetChannelNamesEx, Tcl_ChannelName):
-	Updated APIs in the file generic/tclIO.c according to the guidelines
-	of TIP 27. Several minor documentation corrections as well.
-	[Patch 503565]
-	* generic/tclDecls.h: make genstubs
-
-	* generic/tcl.h (Tcl_DriverOutputProc, Tcl_DriverGetOptionProc,
-	(Tcl_DriverSetOptionProc):
-	* generic/tclIOGT.c (TransformOutputProc, TransformGetOptionProc,
-	(TransformSetOptionProc):
-	* mac/tclMacChan.c (FileOutput, StdIOOutput):
-	* man/tclMacSock.c (TcpGetOptionProc, TcpOutput):
-	* unix/tclUnixChan.c (FileOutputProc, TcpGetOptionProc, TcpOutputProc,
-	(TtyGetOptionProc, TtySetOptionProc):
-	* unix/tclUnixPipe.c (PipeOuputProc):
-	* win/tclWinChan.c (FileOutputProc):
-	* win/tclWinConsole.c (ConsleOutputProc):
-	* win/tclWinPipe.c (PipeOuputProc):
-	* win/tclWinSerial.c (SerialOutputProc, SerialGetOptionProc,
-	(SerialSetOptionProc):
-	* win/tclWinSock.c (TcpGetOptionProc, TcpOutput): Updated channel
-	driver interface according to the guidelines of TIP 27. See also
-	[Bug 500348].
-
-	* doc/CrtChannel.3:
-	* generic/tcl.h:
-	* generic/tclIO.c:
-	* generic/tclIO.h:
-	* generic/tclInt.h:
-	* tools/checkLibraryDoc.tcl:
-	Moved Tcl_EolTranslation enum declaration from generic/tcl.h to
-	generic/tclInt.h (renamed to TclEolTranslation). It is not used
-	anywhere in Tcl's public interface.
-
-2002-01-14  Don Porter <dgp@users.sourceforge.net>
-
-	* doc/GetIndex.3:
-	* doc/WrongNumArgs.3:
-	* generic/tcl.decls (Tcl_GetIndexFromObj, Tcl_GetIndexFromObjStruct,
-	(Tcl_WrongNumArgs):
-	* generic/tclIndexObj.c (Tcl_GetIndexFromObj,Tcl_GetIndexFromObjStruct,
-	(Tcl_WrongNumArgs): Updated APIs in the file generic/tclIndexObj.c
-	according to the guidelines of TIP 27. [Patch 501491]
-	* generic/tclDecls.h: make genstubs
-
-2002-01-11  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure: Regen.
-	* unix/configure.in:
-	* win/configure: Regen.
-	* win/configure.in: Use ${libdir} instead of ${exec_prefix}/lib
-	to properly support the --libdir option to configure. [Bug 489370]
-
-2002-01-11  Andreas Kupries  <andreas_kupries@users.sourceforge.net>
-
-	* win/tclWinSerial.c (SerialSetOptionProc): Applied patch for [Bug
-	500348] supplied by Rolf Schroedter <schroedter@users.sf.net>. The
-	function modified the contents of the the 'value' string and now does
-	not do this anymore. This is a followup to the change made on
-	2001-12-17.
-
-2002-01-11  David Gravereaux <davygrvy@pobox.com>
-
-	* win/makefile.vc: Removed -GD compiler option. It was intended for
-	future use, but MS is again changing the future at their whim. The
-	D4002 warning was harmless though, but someone using VC .NET logged it
-	as a concern. [Bug 501565]
-
-2002-01-11  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/Makefile.in: Burn Tcl build directory into tcltest executable
-	to avoid crashes caused by ld loading a previously installed version
-	of the tcl shared library. [Bug 218110]
-
-2002-01-10  Don Porter <dgp@users.sourceforge.net>,
-	Kevin Kenny <kennykb@users.sourceforge.net>
-
-	* unix/tclLoadDld.c (TclpLoadFile):  syntax error: unbalanced parens.
-	Kevin notes that it's far from clear that this file is ever included
-	in an actual build; Linux without dlopen appears to be a nonexistent
-	configuration.
-
-2002-01-08  Don Porter <dgp@users.sourceforge.net>,
-	Kevin Kenny <kennykb@users.sourceforge.net>
-
-	* doc/StaticPkg.3 (Tcl_StaticPackage):
-	* generic/tcl.decls (Tcl_StaticPackage):
-	* generic/tclDecls.h (Tcl_StaticPackage):
-	* generic/tclInt.decls (TclGuessPackageName):
-	* generic/tclInt.h (TclGuessPackageName):
-	* generic/tclLoad.c (Tcl_StaticPackage):
-	* generic/tclLoadNone.c (TclGuessPackageName):
-	* mac/tclMacLoad.c (TclGuessPackageName):
-	* unix/tclLoadAout.c (TclGuessPackageName):
-	* unix/tclLoadDl.c (TclGuessPackageName):
-	* unix/tclLoadDld.c (TclGuessPackageName):
-	* unix/tclLoadDyld.c (TclGuessPackageName):
-	* unix/tclLoadNext.c (TclGuessPackageName):
-	* unix/tclLoadOSF.c (TclGuessPackageName):
-	* unix/tclLoadShl.c (TclGuessPackageName):
-	* win/tclWinLoad.c (TclGuessPackageName):  Updated APIs in the files
-	*/tcl*Load*.c according to the guidelines of TIP 27. [Patch 501096]
-
-2002-01-09  Don Porter <dgp@users.sourceforge.net>
-
-	* generic/tclTest.c (MainLoop):
-	* tests/main.test (Tcl_Main-1.{3,4,5,6}):  Corrected some non-portable
-	tests from the new Tcl_Main changes. Thanks to Kevin Kenny.
-
-2002-01-07  Don Porter <dgp@users.sourceforge.net>
-
-	* generic/tclEvent.c (TclInExit):
-	* generic/tclIOUtil.c (SetFsPathFromAbsoluteNormalized,
-	(SetFsPathFromAny,Tcl_FSNewNativePath,DupFsPathInternalRep):
-	* generic/tclListObj.c (TclLsetList,TclLsetFlat):  Added some type
-	casts to satisfy picky compilers.
-
-	* generic/tclMain.c:  Bug fix: neglected the NULL case in
-	TclGetStartupScriptFileName(). Broke Tk/wish.
-
-2002-01-05  Don Porter <dgp@users.sourceforge.net>
-
-	* doc/Tcl_Main.3:
-	* generic/tclMain.c:  Substantial rewrite and expanded documentation
-	of Tcl_Main to correct a number of bugs and flaws:
-
-	  - Interactive Tcl_Main can now enter a main loop, exit that loop and
-	    continue interactive operations. The loop may even exit in the
-	    midst of interactive command typing without loss of the partial
-	    command. [Bugs 486453, 474131]
-	  - Tcl_Main now gracefully handles deletion of its master
-	    interpreter.
-	  - Interactive Tcl_Main can now operate with non-blocking stdin
-	  - Interactive Tcl_Main can now detect EOF on stdin even in
-	    mid-command. [Bug 491341]
-	  - Added VFS-aware internal routines for managing the startup script
-	    selection.
-	  - Tcl variable 'tcl_interactive' is now linked to C variable 'tty'
-	    so that one can disable/enable interactive prompts at the script
-	    level when there is no startup script. This is meant for use by
-	    the test suite.
-	  - Consistent use of the Tcl libraries standard channels as returned
-	    by Tcl_GetStdChannel(); as opposed to the channels named 'stdin',
-	    'stdout', and 'stderr' in the master interp, which can be
-	    different or unavailable.
-	  - Tcl_Main now calls Tcl_Exit() if evaluation of [exit] in the
-	    master interpreter returns, assuring Tcl_Main does not return.
-	  - Documented Tcl_Main's absence from public stub table
-	  - Documented that Tcl_Main does not return.
-	  - Documented Tcl variables set by Tcl_Main.
-	  - All prompts are done from a single procedure, Prompt.
-	  - Use of Tcl_Obj-enabled interfaces everywhere.
-
-	* generic/tclInt.decls (TclGetStartupScriptPath,
-	(TclSetStartupScriptPath): New internal VFS-aware routines for
-	managing the startup script of Tcl_Main.
-	* generic/tclIntDecls.h:
-	* generic/tclStubInit.c: make genstubs
-
-	* generic/tclTest.c (TestsetmainloopCmd,TestexitmainloopCmd,
-	(Tcltest_Init,TestinterpdeleteCmd):
-	* tests/main.test (new):  Added new file to test suite that thoroughly
-	tests generic/tclMain.c; added some new test commands for testing
-	Tcl_SetMainLoop().
-
-2002-01-04  Don Porter <dgp@users.sourceforge.net>
-
-	* doc/Alloc.3:
-	* doc/Concat.3:
-	* doc/CrtMathFnc.3:
-	* doc/Hash.3:
-	* doc/Interp.3:
-	* doc/LinkVar.3:
-	* doc/ObjectType.3:
-	* doc/PkgRequire.3:
-	* doc/Preserve.3:
-	* doc/SetResult.3:
-	* doc/SplitList.3:
-	* doc/SplitPath.3:
-	* doc/TCL_MEM_DEBUG.3: Updated documentation to describe the ckalloc,
-	ckfree, ckrealloc, attemptckalloc, and attemptckrealloc macros, and
-	to accurately describe when and how they are used. [Bug 497459]
-
-	* generic/tclThreadJoin.c (TclRememberJoinableThread,TclJoinThread):
-	Replaced Tcl_Alloc and Tcl_Free calls with ckalloc and ckfree so that
-	memory debugging is supported.
-
-2002-01-04  Daniel Steffen <das@users.sourceforge.net>
-
-	* mac/tclMacTime.c (TclpGetTZName): fix for daylight savings TZName bug
-
-2002-01-03  Don Porter <dgp@users.sourceforge.net>
-
-	* doc/FileSystem.3:
-	* generic/tclIOUtil.c: Updated some old uses of "fileName" to
-	new VFS terminology, "pathPtr".
-
-2002-01-03  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/basic.test (basic-39.4): Greatly simplified test while
-	still leaving it so that it crashes when run without the fix to
-	the [foreach] implementation.
-	* generic/tclCmdAH.c (Tcl_ForeachObjCmd): Stopped [Bug 494348] from
-	happening by not trying to be so clever with cacheing; if nothing
-	untoward is happening anyway, the less efficient technique will
-	only add a few instruction cycles (one function call and a few
-	derefs/assigns per list per iteration, with no change in the
-	number of tests) and if something odd *is* going on, the code is
-	now far more robust.
-
-	* tests/basic.test (basic-39.4): Reproducable script from [Bug 494348]
-
-2002-01-02  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/util.test (Wrapper_Tcl_StringMatch,util-5.*): Rewrote so the
-	test is performed with the right internal function since [string
-	match] no longer uses Tcl_StringCaseMatch internally.
-
-	* tests/string.test (string-11.51):
-	* generic/tclUtf.c (Tcl_UniCharCaseMatch):
-	* generic/tclUtil.c (Tcl_StringCaseMatch): Fault with matching
-	case-insensitive non-ASCII patterns containing upper case characters.
-	[Bug 233257]
-
-	******************************************************************
-	*** CHANGELOG ENTRIES FOR 2001 IN "ChangeLog.2001"             ***
-	*** CHANGELOG ENTRIES FOR 2000 IN "ChangeLog.2000"             ***
-	*** CHANGELOG ENTRIES FOR 1999 AND EARLIER IN "ChangeLog.1999" ***
-	******************************************************************
diff --git a/ChangeLog.2003 b/ChangeLog.2003
deleted file mode 100644
index 3c3ee11..0000000
--- a/ChangeLog.2003
+++ /dev/null
@@ -1,3349 +0,0 @@
-2003-12-25  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/tclWin32Dll.c (DllMain): Add HAVE_NO_SEH blocks in place of
-	__try and __except statements to support gcc builds. This is needed
-	after David's changes on 2003-12-21. [Patch 858493]
-
-2003-12-23  David Gravereaux <davygrvy@pobox.com>
-
-	* generic/tclAlloc.c:	All uses of 'panic' (the macro) changed to
-	* generic/tclBasic.c:	'Tcl_Panic' (the function). The #define of
-	* generic/tclBinary.c:	panic in tcl.h clearly states it is deprecated
-	* generic/tclCkalloc.c:	in the comments. [Patch 865264]
-	* generic/tclCmdAH.c:
-	* generic/tclCmdIL.c:
-	* generic/tclCmdMZ.c:
-	* generic/tclCompCmds.c:
-	* generic/tclCompExpr.c:
-	* generic/tclCompile.c:
-	* generic/tclConfig.c:
-	* generic/tclDictObj.c:
-	* generic/tclEncoding.c:
-	* generic/tclEvent.c:
-	* generic/tclExecute.c:
-	* generic/tclHash.c:
-	* generic/tclInterp.c:
-	* generic/tclIO.c:
-	* generic/tclIOCmd.c:
-	* generic/tclIOUtil.c:
-	* generic/tclListObj.c:
-	* generic/tclLiteral.c:
-	* generic/tclNamesp.c:
-	* generic/tclObj.c:
-	* generic/tclParse.c:
-	* generic/tclPathObj.c:
-	* generic/tclPkg.c:
-	* generic/tclPreserve.c:
-	* generic/tclProc.c:
-	* generic/tclStringObj.c:
-	* generic/tclTest.c:
-	* generic/tclThreadAlloc.c:
-	* generic/tclTimer.c:
-	* generic/tclTrace.c:
-	* generic/tclVar.c:
-	* mac/tclMacChan.c:
-	* mac/tclMacOSA.c:
-	* mac/tclMacResource.c:
-	* mac/tclMacSock.c
-	* mac/tclMacThrd.c:
-	* unix/tclUnixChan.c:
-	* unix/tclUnixNotfy.c:
-	* unix/tclUnixThrd.c:
-	* unix/tclXtNotify.c:
-	* win/tclWin32Dll.c:
-	* win/tclWinChan.c:
-	* win/tclWinFCmd.c:
-	* win/tclWinNotify.c:
-	* win/tclWinPipe.c:
-	* win/tclWinSock.c:
-	* win/tclWinThrd.c:
-
-	* generic/tclInt.h:  Deprecated use of Tcl_Ckalloc changed to
-	Tcl_Alloc in the TclAllocObjStorage macro.
-
-2003-12-22  David Gravereaux <davygrvy@pobox.com>
-
-	* win/nmakehlp.c:
-	* win/rules.vc:  New feature for extensions that use rules.vc. Now
-	reads header files for version strings. No more hard coding
-	TCL_VERSION = 8.5 and having to edit it when you swap cores.
-
-	* win/makefile.vc: VERSION macro now set by reading tcl.h for it.
-
-	* generic/tcl.h: Removed note that makefile.vc needs to have a version
-	number changed.
-
-2003-12-21  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWin32Dll.c: Structured Exception Handling added around
-	Tcl_Finalize called from DllMain's DLL_PROCESS_DETACH. We can't be
-	100% assured that Tcl is being unloaded by the OS in a stable
-	condition and we need to protect the exit handlers should the stack be
-	in a hosed state. AT&T style assembly for SEH under MinGW has not been
-	added yet. This is a first part change for [Patch 858493]
-
-2003-12-17  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclBinary.c (DeleteScanNumberCache): fixed crashing bug when
-	numeric scan-value cache contains NULL value.
-
-2003-12-17  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclCmdAH.c:
-	* unix/tclUnixFile.c:
-	* win/tclWinFCmd.c:
-	* tests/fCmd.test:
-	* tests/fileSystem.test:
-	* doc/file.n: final fix to support for relative links and its
-	implications on normalization and other parts of the filesystem code.
-	Fixes [Bug 859251] and some Windows problems with recursive file
-	delete/copy and symbolic links.
-
-2003-12-17  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclPathObj.c:
-	* tests/fileSystem.test: fix and tests for [Bug 860402] in new file
-	normalization code.
-
-2003-12-17  Zoran Vasiljevic  <zv@archiware.com>
-
-	* generic/tclIOUtil.c: fixed 2 memory (object) leaks. [Bug 839519]
-
-	* generic/tclPathObj.c: fixed Tcl_FSGetTranslatedPath to always return
-	properly refcounted path object. [Bug 861515]
-
-2003-12-16  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* tests/fCmd.test: marking fCmd-9.14.2, as nonPortable, since on
-	Solaris one can change the name of the current directory with 'file
-	rename'.
-	* doc/FileSystem.3: clarified documentation on ownership of return
-	objects/strings of some Tcl_FS* calls.
-
-2003-12-16  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclThreadAlloc.c (binfo): Made variable file-local.
-
-2003-12-15  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tcl.rc:
-	* win/tclsh.rc: Slight modification to the STRINGIFY macro to support
-	Borland's rc tool.
-
-	* win/tclWinFile.c (TclpUtime) : utimbuf struct not a problem with
-	Borland.
-
-	* win/tclWinTime.c (TclpGetDate) : Borland's localtime() has a slight
-	behavioral difference.
-
-	From Helmut Giese <hgiese@ratiosoft.com> [Patch 758097].
-
-2003-12-14  David Gravereaux <davygrvy@pobox.com>
-
-	* generic/tclInt.decls: commented-out entry for TclpCheckStackSpace,
-	removing it from the Stubs table. It's already declared in tclInt.h
-	and labeled as a function that is not to be exported. Regened tables.
-
-2003-12-14  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclCmdMZ.c (Tcl_SwitchObjCmd): TIP#75 Implementation
-	* tests/switch.test:	Can now get submatch information when using
-	* doc/switch.n:		-regexp matching in [switch].
-
-2003-12-14  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclPathObj.c: complete rewrite of generic file normalization
-	code to cope with links followed by '..'. [Bug 849514], and parts of
-	[Bug 859251]
-
-2003-12-12  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinChan.c: Win32's SetFilePointer() takes LONGs not DWORDs (a
-	signed/unsigned mismatch). Redid local vars to avoid all casting
-	except where truly required.
-
-2003-12-12  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclCmdAH.c: fix to normalization of non-existent user name
-	('file normalize ~nobody') [Bug 858937]
-	* doc/file.n: clarify behaviour of 'file link' when the target is not
-	an absolute path.
-	* doc/filename.n: correct documentation to say that Windows Tcl does
-	handle '~user', for recent Windows releases, and clarified distinction
-	between MacOS 'classic' and MacOS X.
-	* doc/glob.n: clarification of glob's behaviour when returning
-	filenames starting with a '~'.
-
-	* tests/fileSystem.test:
-	* tests/fileName.test: new tests added for the normalization problem
-	above and other recentlt reported issues.
-
-	* win/tclWinFile.c: corrected unclear comments
-
-	* unix/tclUnixFile.c: allow creation of relative links. [Bug 833713]
-
-2003-12-11  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinSock.c (SocketThreadExitHandler) : added a TerminateThread
-	fallback just in case the socket handler thread is really in a paused
-	state. This can happen when Tcl is being unloaded by the OS from an
-	exception handler. See MSDN docs on DllMain, it states this behavior.
-
-2003-12-09  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/configure:
-	* unix/tcl.m4: updated OpenBSD build configuration based on
-	[Patch #775246] (cassoff)
-
-2003-12-09  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* unix/tclUnixPort.h:	#ifdef'd out declarations of errno which are
-	* tools/man2tcl.c:	known to cause problems with recent glibc.
-				[Bug 852369]
-
-2003-12-09  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* win/tclWinFile.c: fix to NT file permissions code [Bug 855923]
-	* tests/winFile.test: added tests for NT file permissions - patch and
-	test scripts supplied by Benny.
-
-	* tests/winFCmd.test: fixed one test for when not running in C:/
-
-2003-12-02  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclBinary.c (DeleteScanNumberCache, ScanNumber): Made the
-	numeric scan-value cache have proper references to the objects within
-	it so strange patterns of writes won't cause references to freed
-	objects. Thanks to Paul Obermeir for the report. [Bug 851747]
-
-2003-12-01  Miguel Sofer <msofer@users.sf.net>
-
-	* doc/lset.n: fix typo [Bug 852224]
-
-2003-11-24  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclParse.c:	Corrected faulty check for trailing white
-	space in {expand} parsing. Thanks Andreas Leitgeb. [Bug 848262]
-	* tests/parse.test: 	New tests for the bug.
-
-2003-11-24  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclPathObj.c: fix to [Bug 845778] - Infinite recursion on
-	[cd] (Windows only bug), for which new tests have just been added.
-
-2003-11-21  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/winFCmd.test (winFCmd-16.10,11): Merged new tests from
-	core-8-4-branch.
-
-2003-11-20  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclVar.c: fix flag bit collision between LOOKUP_FOR_UPVAR
-	and TCL_PARSE_PART1 (deprecated) [Bug 835020]
-
-2003-11-19  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/compile.test (compile-16.22.0):	Improved test for the recent
-	fix for Bug 845412.
-
-2003-11-19  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclCompile.c (TclCompileScript): Added a guard for the
-	expansion code so that long non-expanding commands don't get expansion
-	infrastructure inserted in them, especially when that infrastructure
-	isn't initialised. [Bug 845412]
-
-2003-11-18  David Gravereaux <davygrvy@pobox.com>
-
-	* contrib/djgpp/Makefile:		Changes from Victor Wagner
-	* contrib/djgpp/langinfo.c (new):	<vitus@45.free.net> for better
-	* contrib/djgpp/langinfo.h (new):	DJGPP support.
-	* unix/tclUnixInit.c:			.
-	* unix/tclUnixChan.c:			.
-	* unix/tclUnixFCmd.c:			.
-
-2003-11-17  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/reg.test: Added tests for [Bugs 230589, 504785, 505048, 840258]
-	recently fixed by 2003-11-15 commit to regcomp.c by Pavel Goran. His
-	notes on the fix: This bug results from an error in code that splits
-	states into "progress" and "no-progress" ones. This error causes an
-	interesting situation with the pre-collected single-linked list of
-	states to be splitted: many items were added to the list, but only
-	several of them are accessible from the list beginning, since the
-	"tmp" member of struct state (which is used here to hold a pointer to
-	the next list item) gets overwritten, which results in a "looped"
-	chain. As a result, not all of states are splitted, and one state is
-	splitted two times, causing incorrect "no-progress" flag values.
-
-2003-11-16  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclExecute.c (TclExecuteByteCode): Make sure that
-	Tcl_AsyncInvoke is called regularly when processing bytecodes.
-	* generic/tclTest.c (AsyncThreadProc, TestasyncCmd): Extended testing
-	harness to send an asynchronous marking without relying on UNIX
-	signals.
-	* tests/async.test (async-4.*): Tests to check that async events are
-	handled by the bytecode core. [Bug 746722]
-
-2003-11-15  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclTest.c (TestHashSystemHashCmd): Removed 'const' modifier
-	from hash type structure; it should be const and the hash code assumes
-	it behaves like const, but that's not how the API is defined. Like
-	this, we are following in the same footsteps as Tcl_RegisterObjType()
-	which has the same conditions on its argument. Stops VC++5.2 warning.
-	[Bug 842511]
-
-2003-11-14  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclHash.c (Tcl_DeleteHashTable,Tcl_HashStats,RebuildTable):
-	* generic/tclTest.c (TestHashSystemHashCmd): TIP#138 implementation,
-	* tests/misc.test:	plus a new chunk of stuff to test the hash
-				functions more thoroughly in the test suite.
-				[Patch 731356, modified]
-
-	* doc/Tcl.n: Updated Tcl version number and changebars.
-
-2003-11-14  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/ParseCmd.3:	Implementation of TIP 157.  Adds recognition
-	* doc/Tcl.n:		of the new leading {expand} syntax on words.
-	* generic/tcl.h:	Parses such words as the new Tcl_Token type
-	* generic/tclBasic.c:	TCL_TOKEN_EXPAND_WORD. Updated Tcl_EvalEx and
-	* generic/tclCompile.c: the bytecode compiler/execution engine to
-	* generic/tclCompile.h:	recognize the new token type. New opcodes
-	* generic/tclExecute.c:	INST_LIST_VERIFY and INST_INVOKE_EXP and a new
-	* generic/tclParse.c:	operand type OPERAND_ULIST1 are defined. Docs
-	* generic/tclTest.c:	and tests are included.
-	* tests/basic.test:
-	* tests/compile.test:
-	* tests/parse.test:
-
-	* library/auto.tcl:	Replaced several [eval]s used to perform
-	* library/package.tcl:	argument expansion with the new syntax. In the
-	* library/safe.tcl:	test files lindex.test and lset.test, replaced
-	* tests/cmdInfo.test:	use of [eval] to force direct string
-	* tests/encoding.test:	evaluation with use of [testevalex] which more
-	* tests/execute.test:	directly and robustly serves the same purpose.
-	* tests/fCmd.test:
-	* tests/http.test:
-	* tests/init.test:
-	* tests/interp.test:
-	* tests/io.test:
-	* tests/ioUtil.test:
-	* tests/iogt.test:
-	* tests/lindex.test:
-	* tests/lset.test:
-	* tests/namespace-old.test:
-	* tests/namespace.test:
-	* tests/pkg.test:
-	* tests/pkgMkIndex.test:
-	* tests/proc.test:
-	* tests/reg.test:
-	* tests/trace.test:
-	* tests/upvar.test:
-	* tests/winConsole.test:
-	* tests/winFCmd.test:
-
-2003-11-12  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tests/cmdMZ.test (cmdMZ-1.4): change to nonPortable as more systems
-	are using permissions caching, and this isn't really a Tcl controlled
-	issue.
-
-2003-11-11  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/configure:
-	* unix/tcl.m4: improve AIX --enable-64bit handling
-	remove -D__NO_STRING_INLINES -D__NO_MATH_INLINES from CFLAGS_OPTIMIZE
-	on Linux. Make default opt -O2 (was -O).
-
-2003-11-11  David Gravereaux <davygrvy@pobox.com>
-
-	* contrib/djgpp/Makefile:  Suggested changes from vitus@45.free.net
-	(Victor Wagner)
-
-	* unix/tclUnixPort.h:  added socklen_t typedef for DJGPP
-
-2003-11-10  Don Porter	<dgp@users.sourceforge.net>
-
-	* unix/tclUnixInit.c (TclpInitLibraryPath):
-	* win/tclWinInit.c (TclpInitLibraryPath):	Fix for [Bug 832657]
-	that should not run afoul of startup constraints.
-
-	* library/dde/pkgIndex.tcl:	Added safeguards so that registry and
-	* library/reg/pkgIndex.tcl:	dde packages are not offered on
-	* win/tclWinDde.c:		non-Windows platforms. Bumped to
-	* win/tclWinReg.c:		registry 1.1.3 and dde 1.3.
-	* win/Makefile.in:
-	* win/configure.in:
-	* win/makefile.bc:
-	* win/makefile.vc:
-
-	* win/configure:	autoconf (2.57)
-
-2003-11-10  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tests/cmdIL.test: Stopped cmdIL-5.5 from stomping over the test
-	command, and updated the tests to use some tcltest2 features in
-	relation to cleanup. [Bug 838384]
-
-2003-11-10  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclCmdAH.c:
-	* tests/fCmd.test: fix to misleading error message in 'file link'.
-	[Bug 836208]
-
-2003-11-07  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclIOUtil.c: fix to compiler warning/error with some
-	compilers. [Bug 835918]
-
-2003-11-07  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Makefile: optimized builds define NDEBUG to turn off
-	ThreadAlloc range checking.
-
-2003-11-05  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/unixInit.test (unixInit-2.10):  New test to expose [Bug 832657]
-	failure of TclpInitLibraryPath() to properly handle .. in the path
-	of the executable.
-
-2003-11-04  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Makefile: added 'test' target.
-
-2003-11-03  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclIOUtil.c
-	* generic/tclInt.h: added comments and re-arranged code to clarify
-	distinction between Tcl_LoadHandle, ClientData for 'load'ed code, and
-	point out limitations of the design introduced with Tcl 8.4.
-
-	* unix/tclUnixFile.c: fix to memory leak
-
-	* generic/tclCmdIL.c: removed warning on Windows.
-
-2003-11-01  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclCmdIL.c (Tcl_LrepeatObjCmd): Check for sensible list
-	lengths and allow for soft failure of the memory subsystem in the
-	[lconcat] command [Bug 829027]. Uses direct list creation to avoid
-	extra copies when working near the limit of available memory. Also
-	reorganized to encourage optimizing compilers to optimize heavily.
-	* generic/tclListObj.c (TclNewListObjDirect): New list constructor
-	that does not copy the array of objects. Useful for creating
-	potentially very large lists or where you are about to throw away the
-	array argument which is being used in its entirety.
-
-2003-10-28  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclExecute.c (NEXT_INST macros): replaced macro variable
-	"result" by "resultHandling" to avoid confusion.
-
-2003-10-23  Andreas Kupries  <andreask@activestate.com>
-
-	* unix/tclUnixChan.c (Tcl_MakeFileChannel): Applied [Patch 813606]
-	fixing [Bug 813087]. Detection of sockets was off for Mac OS X which
-	implements pipes as local sockets. The new code ensures that only IP
-	sockets are detected as such.
-
-	* win/tclWinSock.c (TcpWatchProc): Watch for FD_CLOSE too when asked
-	for writable events by the generic layer.
-	(SocketEventProc): Generate a writable event too when a close is
-	detected.
-
-	  Together the changes fix [Bug 599468].
-
-2003-10-23  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* tests/resource.test:
-	* mac/tclMacResource.c: fix to resource freeing problem in 'resource'
-	command reported by Bernard Desgraupes.
-
-	* doc/FileSystem.3: updated documentation for 'glob' fix on 2003-10-13
-	below
-
-2003-10-22  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclCmdAH.c (Tcl_FileObjCmd): Changed FILE_ prefix to FCMD_
-	to stop symbol/#def clashes on Cygwin/Mingw32 on NT. [Bug 822528]
-
-2003-10-21   Daniel Steffen  <das@users.sourceforge.net>
-
-	* tools/tcltk-man2html.tcl: fixed incorrect html generated for
-	.IP/.TP lists, now use <DL><DT>...<DD>...<P><DT>...<DD>...</DL>
-	instead of illegal  <DL><P><DT>...<DD>...<P><DT>...<DD>...</DL>.
-	Added skipping of directives directly after .TP to avoid them being
-	used as item descriptions, e.g. .TP\n.VS in clock.n.
-
-2003-10-21  Andreas Kupries  <andreask@pliers.activestate.com>
-
-	* win/tclWinPipe.c (BuildCommandLine): Applied the patch coming with
-	[Bug 805605] to the code, fixing the incorrect use of ispace noted by
-	Ronald Dauster <ronaldd@users.sourceforge.net>.
-
-2003-10-20  Kevin B. Kenny  <kennykb@users.sourceforge.net>
-
-	* doc/msgcat.n:
-	* library/msgcat/msgcat.tcl (mclocale,mcload):
-	* tools/tcl.wse.in:
-	* unix/Makefile.in:     Implementation of TIP#156, add a "root locale"
-	* win/makefile.bc:      to the 'msgcat' package. Advanced msgcat
-	* win/Makefile.in:      version number to 1.4
-	* win/Makefile.vc:
-
-2003-10-15  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclCmdIL.c (SortInfo,etc): Reorganized so that SortInfo
-	carries an array of integer indices instead of a Tcl list. This nips
-	shimmering problems in the bud and simplifies SelectObjFromSublist at
-	the cost of making setup slightly more complex. [Bug 823768]
-
-2003-10-14  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclAppInit.c (sigHandler): Punt gracefully if exitToken has
-	already been destroyed.
-
-2003-10-14  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c:
-	* tests/regexp.test: fix to [Bug 823524] in regsub; added three new
-	tests.
-
-2003-10-14  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c (TclAppendObjToErrorInfo):	New internal routine
-	that appends a Tcl_Obj to the errorInfo, saving the caller the trouble
-	of extracting the string rep.
-
-	* generic/tclStringObj.c (TclAppendLimitedToObj):	New internal
-	routine that supports truncated appends with optional ellipsis marking.
-	This single routine supports UTF-8-safe truncated appends needed in
-	several places throughout the Tcl source code, mostly for error and
-	stack messages. Clean fix for [Bug 760872].
-
-	* generic/tclInt.h:	Declarations for new internal routines.
-
-	* generic/tclCmdMZ.c:	Updated callers to use the new routines.
-	* generic/tclCompExpr.c:
-	* generic/tclCompile.c:
-	* generic/tclExecute.c:
-	* generic/tclIOUtil.c:
-	* generic/tclNamesp.c:
-	* generic/tclObj.c:
-	* generic/tclParseExpr.c:
-	* generic/tclProc.c:
-	* generic/tclStringObj.c:
-	* mac/tclMacResource.c:
-
-	* library/init.tcl:	Updated ::errorInfo cleanup in [unknown] to
-	reflect slight modifications to Tcl_LogCommandInfo(). Corrects failing
-	init-4.* tests.
-
-2003-10-14  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	TIP#127 IMPLEMENTATION FROM JOE MICHAEL SCHLENKER
-
-	* generic/tclCmdIL.c (SelectObjFromSublist): Element selection engine.
-	* generic/tclCmdIL.c (Tcl_LsearchObjCmd, Tcl_LsortObjCmd):
-	* tests/lsearch.test:	Set up and use of element selection engine,
-	* tests/cmdIL.test:	plus tests and documentation.
-	* doc/lsearch.n:	Based on [Patch 693836]
-	* doc/lsort.n:
-
-2003-10-13  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tcl.h:
-	* generic/tclFileName.c:
-	* generic/tclIOUtil.c:
-	* generic/tclPathObj.c:
-	* generic/tclTest.c:
-	* mac/tclMacFile.c:
-	* tests/fileName.test: better tests for [Bug 813273]
-	* unix/tclUnixFCmd.c:
-	* unix/tclUnixFile.c:
-	* win/tclWin32Dll.c:
-	* win/tclWinFCmd.c:
-	* win/tclWinFile.c:
-	* win/tclFileInt.h:
-
-	Fixed [Bug 800106] in which 'glob' was incapable of merging the
-	results of a directory listing (real or virtual) and any virtual
-	filesystem mountpoints in that directory (the latter were ignored).
-	This meant boundaries between different filesystems were not seamless
-	(e.g. 'glob */*' across a filesystem boundary was wrong). Added new
-	entry to Tcl_GlobTypeData in a totally backwards compatible way. To
-	allow listing of mounts, registered filesystems must support the
-	'TCL_GLOB_TYPE_MOUNT' flag. If this is not supported (e.g. in tclvfs
-	1.2) then mounts will simply not be listed for that filesystem.
-
-	Fixed [Bug 749876] 'file writable/readable/etc' (NativeAccess) using
-	correct permission checking code for Windows NT/2000/XP where more
-	complex user-based security/access priveleges are available,
-	particularly on shared volumes. The performance impact of this extra
-	checking will need further investigation. Note: Win 95,98,ME have no
-	support for this.
-
-	Also made better use of normalized rather than translated paths in the
-	platform specific code.
-
-2003-10-12  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/tclUnixTest.c (TestalarmCmd): don't bother checking return
-	value of alarm. [Bug #664755] (english)
-
-2003-10-09  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* win/makefile.vc:  Applied patches for bug #801467 by Joe Mistachkin
-	* win/tclAppInit.c: to fix incompatible TCL_MEM_DEBUG handling in
-	* generic/tclObj.c: Win32 VC builds.
-
-2003-10-08  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Save and restore the iPtr->flag bits that
-	control the state of errorCode and errorInfo management when calling
-	"leave" execution traces, so that all error information of the traced
-	command is still available whether traced or not. [Bug 760947]
-	Thanks to Yahalom Emet.
-
-2003-10-08  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclTest.c (TestNumUtfCharsCmd): Command to allow finer
-	access to Tcl_NumUtfChars for testing.
-	* generic/tclUtf.c (Tcl_NumUtfChars): Corrected string length
-	determining when the length parameter is negative; the terminator is a
-	zero byte, not (necessarily) a \u0000 character. [Bug 769812]
-
-2003-10-07  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/cmdAH.test:
-	* tests/exec.test:		Corrected temporary file management
-	* tests/fileSystem.test:	issues uncovered by -debug 1 test
-	* tests/io.test:		operations. Also backported some
-	* tests/ioCmd.test:		other fixes from the HEAD.
-	* tests/main.test:
-	* tests/pid.test:		[Bugs 675605, 675655, 675659]
-	* tests/socket.test:
-	* tests/source.test:
-
-	* tests/fCmd.test:	Run tests with the [temporaryDirectory] as the
-	current directory, so that tests can depend on ability to write files.
-	[Bug 575837]
-
-	* doc/OpenFileChnl.3:	Updated Tcl_Tell and Tcl_Seek documentation to
-	reflect that they now return Tcl_WideInt (TIP 72). [Bug 787537]
-
-	* tests/io.test:	Corrected several tests that failed when paths
-	* tests/ioCmd.test:	included regexp-special chars. [Bug 775394]
-
-2003-10-06  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* win/configure:
-	* win/tcl.m4: removed incorrect checks for existence of optimization.
-	TCL_CFG_OPTIMIZED is now defined whenever the user does not build with
-	--enable-symbols.
-
-2003-10-06  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/regexp.test:		Matched [makeFile] with [removeFile].
-	* tests/regexpComp.test:	[Bug 675652]
-
-	* tests/fCmd.test (fCmd-8.2):	Test only that tilde-substitution
-	happens, not for any particular result. [Bug 685991]
-
-	* unix/tcl.m4 (SC_PATH_TCLCONFIG):	Corrected search path so that
-	alpha and beta releases of Tcl are not favored. [Bug 608698]
-
-	* tests/reg.test:	Corrected duplicate test names.
-	* tests/resource.test:	[Bugs 710370, 710358]
-	* tests/dict.test:
-
-	* tests/dict.test:	Updated [package require tcltest] lines to
-	* tests/fileSystem.test:	indiciate that these test files
-	* tests/lrepeat.test:	use features of tcltest 2.  [Bug 706114]
-	* tests/notify.test:
-	* tests/parseExpr.test:
-	* tests/unixNotfy.test:
-	* tests/winDde.test:
-
-2003-10-04  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclExecute.c (TEBC):
-	* tests/execute.test (execute-8.2): fix for [Bug 816641] - faulty
-	execution and catch stack management.
-
-2003-10-03  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Fixed error in ref count management of command
-	* generic/tclCmdMZ.c:	and execution traces that caused access to
-	freed memory in trace-32.1. [Bug 811483]
-
-2003-10-02  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclTrace.c: Corrected comingling of introspection results of
-	[trace info command] and [trace info execution]. [Bug 807243]
-	Thanks to Mark Saye.
-
-2003-10-01  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Makefile: fixed redo prebinding bug when DESTDIR="".
-	* mac/tclMacResource.c: fixed possible NULL dereference (bdesgraupes).
-
-2003-09-29  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclPathObj.c:
-	* tests/fileName.test: fix to inconsistent handling of backslash
-	path separators on Windows in 'file join' [Bug 813273]
-
-2003-09-29  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclPathObj.c (TclNativePathInFilesystem,TclFSGetPathType):
-	* generic/tclIOUtil.c (TclNativeDupInternalRep,TclGetPathType): Rename
-	to make sure function names won't interfere with other non-Tcl code
-	(reported by George Staplin)
-
-	TIP#121 IMPLEMENTATION FROM JOE MISTACHKIN
-
-	* generic/tclEvent.c (Tcl_SetExitProc,Tcl_Exit): Implementation of
-	application exit handler scheme.
-	* generic/tcl.decls (Tcl_SetExitProc): Public declaration.
-	* doc/Exit.3: Documentation of new API function.
-
-	TIP#112 IMPLEMENTATION
-
-	* generic/tclNamesp.c: Core of implementation.
-	* generic/tclInt.h (Namespace,TclInvalidateNsCmdLookup): Add command
-	list epoch counter and list of ensembles to namespace structure, and
-	define a macro to ease update of the epoch counter.
-	* generic/tclBasic.c (Tcl_CreateObjCommand,etc.): Update epoch counter
-	when list of commands in a namespace changes.
-	* generic/tclObj.c (TclInitObjSubsystem): Register ensemble subcommand
-	type.
-	* tests/namespace.test (42.1-47.6): Tests.
-	* doc/namespace.n: Documentation.
-
-	* library/http/http.tcl (geturl): Correctly check the type of
-	boolean-valued options. [Bug 811170]
-
-	* unix/tcl.m4 (SC_ENABLE_FRAMEWORK): Added note to make it clearer
-	that this is an OSX feature, not a general Unix feature. [Bug 619440]
-
-2003-09-28  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinPipe.c: The windows port of expect can call
-	TclWinAddProcess before any of the other pipe functions. Added a
-	missing PipeInit() call to make sure the initialization happens.
-
-2003-09-25  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Makefile: ensure SYMROOT exists if OBJROOT is overridden on
-	command line. Replaced explict use of /usr/bin by ${BINDIR}.
-
-2003-09-24  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* library/package.tcl (tcl::MacPkgUnknown, tcl::MacOSXPkgUnknown):
-	Minor performance tweaks to reduce the number of [file] invocations.
-	Meant to improve startup times, at least a little bit. (The generic
-	equivalent patch was applied on 2003-02-21).
-
-2003-09-24  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* trace.test: removed 'knownBug' from a test which doesn't illustrate
-	a bug, just a bad test.
-
-2003-09-23  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclExecute.c:
-	* generic/tclInt.h: changed the evaluation-stack addressing mode, from
-	array-style to pointer-style; the catch stack and evaluation stack are
-	now contiguous in memory. [Patch 457449]
-
-2003-09-23  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/trace.test (trace-31,32-*):  Added tests for [Bug 807243] and
-	[Bug 811483].
-
-	* library/init.tcl (auto_load, auto_import):  Expanded Eric Melski's
-	2000-01-28 fix for [Bug 218871] to all potentially troubled uses of
-	[info commands] on input data, where glob-special characters could
-	cause problems.
-
-2003-09-20  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/expr.test (expr-23.4): Prevented accidental wrapping round of
-	exponential operation; it isn't portable, and not what I intended to
-	test either. [Bug 808244]
-
-2003-09-19  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclExecute.c: adding (DE)CACHE_STACK_INFO() pairs to protect
-	all calls that may cause traces on ::errorInfo or ::errorCode to
-	corrupt the stack. [Bug 804681]
-
-2003-09-17  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* tclPathObj.c: fix to test-suite problem introduced by the bug fix
-	below. No problem in ordinary code, just test suite code which
-	manually adjusts tclPlatform. [Bug 808247]
-
-2003-09-16  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* doc/filename.n: documentation of Windows-specific feature as
-        discussed in [Bug 541989]
-	* generic/tclPathObj.c: fix for normalization of volume-relative paths
-	[Bug 767834]
-        * tests/winFCmd.test: new tests for both of the above.
-	* tests/cmdAH.test: fix for AFS problem in test suite [Bug 748960]
-
-2003-09-13  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	TIP#123 IMPLEMENTATION BASED ON WORK BY ARJEN MARKUS
-
-	* generic/tclCompile.h (INST_EXPON):		Implementation of
-	* generic/tclCompile.c (tclInstructionTable):	exponential operator.
-	* generic/tclCompExpr.c (operatorTable):
-	* generic/tclParseExpr.c (ParseExponentialExpr, GetLexeme):
-	* generic/tclExecute.c (TclExecuteByteCode, ExponWide, ExponLong):
-	(IllegalExprOperandType):
-	* tests/expr.test:
-	* tests/compExpr-old.test:
-	* doc/expr.n:
-
-2003-09-10  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/opt/optparse.tcl:	Latest revisions caused [OptGuessType]
-	to guess "int" instead of "string" for empty strings. Missed the
-	required "-strict" option to [string is]. Thanks to Revar Desmera.
-	[Bug 803968]
-
-2003-09-08  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinLoad.c (TclpDlopen): Changed the error message for
-	ERROR_PROC_NOT_FOUND to be a bit more helpful in giving us clues.
-	"can't find specified procedure" means a function in the import table,
-	for implicit loading, couldn't be resolved and that's why the load
-	failed.
-
-2003-09-04  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/Tcl_Main.3:
-	* doc/FileSystem.3:				Implementation of
-	* doc/source.n:					TIPs 137/151. Adds a
-	* doc/tclsh.1:					-encoding option to
-	* generic/tcl.decls:				the [source] command
-	* generic/tclCmdMZ.c (Tcl_SourceObjCmd):	and a new C routine,
-	* generic/tclIOUtil.c (Tcl_FSEvalFileEx):	Tcl_FSEvalFileEx(),
-	* generic/tclMain.c (Tcl_Main):			that provides C access
-	* mac/tclMacResource.c (Tcl_MacSourceObjCmd):	to the same function.
-	* tests/cmdMZ.test:				Also adds command line
-	* tests/main.test:	option handling in Tcl_Main() so that tclsh
-	* tests/source.test:	and other apps built on Tcl_Main() respect a
-	-encoding command line option before a script filename. Docs and tests
-	updated as well. [Patch 742683]
-	This is a ***POTENTIAL INCOMPATIBILITY*** only for those C programs
-	that embed Tcl, build on Tcl_Main(), and make use of Tcl_Main's former
-	ability to pass a leading "-encoding" option to interactive shell
-	operations.
-
-	* generic/tclInt.decls:				Added internal stub
-	* generic/tclMain.c (Tcl*StartupScript*):	table entries for two
-	new functions Tcl_SetStartupScript() and Tcl_GetStartupScript() that
-	set/get the path and encoding for the startup script to be evaluated
-	by either Tcl_Main() or Tk_Main(). Given public names in anticipation
-	of their exposure by a followup TIP.
-
-	* generic/tclDecls.h:		make genstubs
-	* generic/tclIntDecls.h:
-	* generic/tclStubInit.c:
-
-2003-09-04  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/SplitList.3:	Implementation of TIP 148.  Fixes [Bug 489537].
-	* generic/tcl.h:	Updated Tcl_ConvertCountedElement() to quote
-	* generic/tclUtil.c:	the leading "#" character of all list elements
-	unless the TCL_DONT_QUOTE_HASH flag is passed in.
-
-	* generic/tclDictObj.c:	Updated Tcl_ConvertCountedElement() callers
-	* generic/tclListObj.c:	to pass in the TCL_DONT_QUOTE_HASH flags
-	* generic/tclResult.c:	when appropriate.
-
-2003-08-31  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/return.n:	Updated [return] docs to cover new TIP 90 features.
-
-	* doc/break.n:		Added SEE ALSO references to return.n
-	* doc/continue.n:
-
-2003-09-01  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/Namespace.3: Basic documentation for the TIP#139 functions. This
-	will need improving, but the basic bits are there at least.
-
-2003-08-31  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/catch.n:	Updated [catch] docs to cover new TIP 90 features.
-
-2003-08-29  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCmdAH.c:	Corrected bug in TIP 90 implementation where
-	* tests/cmdMZ.test:	the default -errorcode NONE value was not
-	copied into the return options dictionary. This correction modified
-	one test result.
-
-2003-08-27  David Gravereaux <davygrvy@pobox.com>
-
-	* compat/strftime.c (_fmt): Removed syst array intializer that
-	couldn't take variables within it under the watcom compiler:
-	'Initializers must be constant'. I believe Borland has this strictness
-	as well. VC++ must be non-standard about this.
-
-	Changed Win32 platform #ifdef from 'WIN32' to '__WIN32__' as this is
-	the correct one to use across the Tcl sources. Even though we do force
-	it in tcl.h, the true parent one is __WIN32__.
-
-	Added missing CONST'ification usage to match prototype listed in
-	tclInt.decls.
-
-	* win/tclWinPort.h:  Added a block for OpenWatcom adjustments that
-	fixes 1) the same issue Mo did for MinGW lack of missing LPFN_*
-	typedefs in their WINE derived <winsock2.h> and 2) The need to be
-	strict about how the char type needs to be signed by default.
-
-	* win/tclWinSock.c:  Added OpenWatcom to the commentary about the
-	#ifdef HAVE_NO_LPFN_DECLS block.
-
-	* win/tclWinTime.c:  Changed use of '_timezone' to 'timezone' as this
-	difference is already adjusted for in tclWinPort.h. Removed
-	unreferenced posixEpoch file-scope global.
-
-	* win/tclWinFile.c (WinReadLinkDirectory): Fix for 'Initializers must
-	be constant' with the driveSpec array using OpenWatcom.
-
-2003-08-27  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclUtil.c:	Corrected [Bug 411825] and other bugs in
-	TclNeedSpace() where non-breaking space (\u00A0) and backslash-escaped
-	spaces were handled incorrectly.
-	* tests/util.test:	Added new tests util-8.[2-6].
-
-2003-08-26  David Gravereaux <davygrvy@pobox.com>
-
-	* generic/tcl.h: Added some support for the LCC-Win32 compiler.
-	Unfortunetly, this compiler has a bug in its preprocessor and can't
-	build Tcl even with this minor patch. Also added some support for the
-	OpenWatcom compiler. A new win/makefile.wc to follow soon.
-
-2003-08-25  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tools/genStubs.tcl (genStubs::makeDecl): A more subtle way of
-	generating stubbed declarations allows us to have declarations of a
-	function in multiple interfaces simultaneously.
-
-	* generic/tcl.decls: Duplicated some namespace declarations from
-	tclInt.decls here, as mandated by TIP #139. This is OK since the
-	declarations match and will end up using the declarations in the
-	public code from now on because of #include ordering. Keeping the old
-	declarations in tclInt.decls; there's no need to gratuitously break
-	compatibility for those extensions which are already clients of the
-	namespace code.
-
-2003-08-23  Zoran Vasiljevic  <zoran@archiwrae.com>
-
-	* generic/tclIOUtil.c: merged fixes for thread-unsafe handling of
-	filesystem records [Bug 753315]. This also fixed the [Bug 788780]
-	* generic/tclPathObj.c: merged fixes for thread-unsafe handling of
-	filesystem records. [Bug 753315]
-
-	* generic/tclFileSystem.h: merged fixes for thread-unsafe handling of
-	filesystem records. [Bug 753315]
-
-2003-08-19  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* win/tclWinSerial.c (SerialErrorStr): Fixed a syntax error created in
-	the previous code cleanup.
-
-2003-08-19  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* win/tclWinSerial.c: Adjusted commenting and spacing usage to follow
-	the principles of the Style Guide better.
-
-2003-08-18  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/configure: Regen.
-	* win/tcl.m4 (SC_ENABLE_SYMBOLS): Use test instead of -eq, which does
-	not work. [Bug 781109]
-
-2003-08-13  Chengye Mao <chengye.geo@yahoo.com>
-
-	* win/tclWinPipe.c: fixed a bug in BuildCommandLine. This bug built a
-	command line with a missing space between tclpipe.dll and the
-	following arguments. It caused error in Windows 98 when exec
-	command.com (e.g. dir). [Bug 789040]
-
-2003-08-11  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	TIP #136 IMPLEMENTATION from Simon Geard <simon.geard@ntlworld.com>
-	* generic/tclCmdIL.c (Tcl_LrepeatObjCmd): Adapted version of Simon's
-	* doc/lrepeat.n:			  patch, updated to the HEAD
-	* tests/lrepeat.test:			  and matching the core style.
-	* generic/tclBasic.c (buildIntCmds):	Splice into core.
-	* generic/tclInt.h:
-	* doc/list.n:				Cross-reference.
-
-2003-08-06  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/tclWinInit.c: recognize amd64 and ia32_on_win64 cpus.
-
-2003-08-06  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/msgcat/msgcat.tcl:	Added escape so that non-Windows
-	* library/msgcat/pkgIndex.tcl:	platforms do not try to use the
-	registry package. This can save a costly and pointless package search.
-	Bumped to 1.3.1. Thanks to Dave Bodenstab. [Bug 781609]
-
-2003-08-05  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclExecute.c (INST_INVOKE, INST_EVAL, INST_PUSH_RESULT):
-	added a Tcl_ResetResult(interp) at each point where the interp's
-	result is pushed onto the stack, to avoid keeping an extra reference
-	that may cause costly Tcl_Obj duplication. Detected by Franco Violi,
-	analyzed by Peter Spjuth and Donal Fellows. [Bug 781585]
-
-2003-07-28  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* doc/FileSystem.3:
-	* doc/Translate.3: better documentation of Tcl_TranslateFileName and
-	related functions. [Bug 775220]
-
-2003-07-24  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tcl.h: Revert change made on 2003-07-21 since it made the
-	sizeof(Tcl_Obj) different for regular vs mem debug builds.
-	* generic/tclInt.h: Define TclDecrRefCount in terms of
-	Tcl_DbDecrRefCount which removes one layer of inderection.
-	* generic/tclObj.c (TclDbInitNewObj, Tcl_DbIncrRefCount,
-	(Tcl_DbDecrRefCount, Tcl_DbIsShared): Define ThreadSpecificData that
-	contains a hashtable. The table is used to ensure that a Tcl_Obj is
-	only acted upon in the thread that allocated it. This checking code is
-	enabled only when mem debug and threads are enabled.
-
-2003-07-24  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/async.test:	Added several tests that demonstrate [Bug
-	* tests/basic.test:	489537], Tcl's longstanding failure to
-	* tests/dict.test:	properly quote any leading '#' character when
-	* tests/dstring.test:	generating the string rep of a list so that
-	* tests/list.test:	the comment-power of that character is hidden
-	* tests/parse.test:	from any [eval], in order to satisfy the
-	* tests/util.test:	documentation that [list] does [eval]-safe
-				quoting.
-
-2003-07-24  Reinhard Max  <max@suse.de>
-
-	* library/package.tcl: Fixed a typo that broke pkg_mkIndex -verbose.
-	* tests/pkgMkIndex.test: Added a test for [pkg_mkIndex -verbose].
-
-	* ChangeLog.2002 (new file):
-	* ChangeLog: broke changes from 2002 into ChangeLog.2002 to reduce
-	size of the main ChangeLog.
-
-2003-07-23  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/Makefile.in: changes to html-tcl & html-tk targets for
-	compatibility with non-gnu makes.
-
-	* unix/Makefile.in: added macosx/README to dist target.
-
-2003-07-23  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* win/tclWinReg.c (OpenSubKey): Fixed bug 775976 which causes the
-	registry set command to fail when built with VC7.
-	* library/reg/pkgIndex.tcl: Incremented the version to 1.1.2.
-
-2003-07-21  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	Check that the thread incrementing or decrementing the ref count of a
-	Tcl_Obj is the thread that originally allocated the thread. This fail
-	fast behavior will catch programming errors that allow a single
-	Tcl_Obj to be accessed from multiple threads.
-
-	* generic/tcl.h (Tcl_Obj): Add allocThread member to Tcl_Obj. This
-	member records the thread id the Tcl_Obj was allocated. It is used to
-	check that any future ref count incr or decr is done from the same
-	thread that allocated the Tcl_Obj. This member is defined only when
-	threads and mem debug are enabled.
-	* generic/tclInt.h (TclNewObj, TclDbNewObj, TclDecrRefCount):
-	Define TclNewObj and TclDbNewObj using TclDbInitNewObj when mem debug
-	is enabled. This fixes a problem where TclNewObj calls did not work
-	the same as TclDbNewObj when mem debug was enabled.
-	* generic/tclObj.c (TclDbInitNewObj, Tcl_DbIncrRefCount,
-	(Tcl_DbDecrRefCount): Add new helper to init Tcl_Obj members when mem
-	debug is enabled. Init the allocThread member in TclDbInitNewObj and
-	check it in Tcl_DbIncrRefCount and Tcl_DbDecrRefCount to make sure a
-	Tcl_Obj allocated in one thread is not being acted upon in another
-	thread.
-
-2003-07-21  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* test/cmdAH.test: ensure certain tests run in local filesystem. [Bug
-	748960]
-
-2003-07-18  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Makefile: added option to allow installing manpages in
-	addition to default html help.
-
-2003-07-18  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/Utf.3: Tightened up documentation of Tcl_UtfNext and Tcl_UtfPrev
-	to better match the behaviour. [Bug 769895]
-
-2003-07-18  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* library/http/pkgIndex.tcl: upped to http v2.4.4
-	* library/http/http.tcl: add support for user:pass info in URL.
-	* tests/http.test:       [Bug 759888] (shiobara)
-
-2003-07-18  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/tcltest.n:                Restored the [Eval] proc to replace
-	* library/tcltest/tcltest.tcl:  the [::puts] command when either the
-	-output or -error option for [test] is in use, in order to capture
-	data written to the output or error channels for comparison against
-	what is expected.  This is easier to document and agrees better with
-	most user expectations than the previous attempt to replace [puts]
-	only in the caller's namespace.  Documentation made more precise on
-	the subject.  [Bug 706359]
-
-	* doc/AddErrInfo.3:	Improved consistency of documentation by
-	* doc/CrtTrace.3:      	using "null" everywhere to refer to the
-	* doc/Encoding.3:      	character '\0', and using "NULL" everywhere
-	* doc/Eval.3:          	to refer to the value of a pointer that points
-	* doc/GetIndex.3:      	to nowhere. Also dropped references to ASCII
-	* doc/Hash.3:          	that are no longer true, and standardized on
-	* doc/LinkVar.3:       	the hyphenated spelling of "null-terminated".
-	* doc/Macintosh.3:
-	* doc/OpenFileChnl.3:
-	* doc/SetVar.3:
-	* doc/StringObj.3:
-	* doc/Utf.3:
-
-	* doc/CrtSlave.3 (Tcl_MakeSafe):  Removed warning about possible
-	deprecation (no TIP on that).
-
-2003-07-17  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tclUnixFCmd.c: fix for compilation errors on platforms where
-	configure detects non-functional chflags(). [Bug 748946]
-
-	* macosx/Makefile: Rewrote buildsystem for Mac OS X framework build
-	to be purely make driven; in order to become independent of Apple's
-	closed-source IDE and build tool. The changes are intended to be
-	transparent to the Makefile user, all existing make targets and cmd
-	line variable overrides should continue to work. Changed build to only
-	include tcl specific html help in Tcl.framework, the tk specific html
-	help is now included in Tk.framework. Added var to allow overriding of
-	tclsh used during html help building (Landon Fuller).
-
-	* macosx/Tcl.pbproj/project.pbxproj:
-	* macosx/Tcl.pbproj/jingham.pbxuser: Changed to purely call through to
-	the make driven buildsystem; Tcl.framework is no longer assembled by
-	ProjectBuilder.
-	Set default SYMROOT in target options to simplify setting up PB
-	(manually setting common build folder for tcl & tk no longer needed).
-
-	* tools/tcltk-man2html.tcl: Added options to allow building only the
-	tcl or tk html help files; the default behaviour with none of the new
-	options is to build both, as before.
-
-	* unix/Makefile.in: Added targets for building only the tcl or tk help
-
-	* macosx/README (new): Tcl specific excerpts of tk/macosx/README.
-
-	* generic/tcl.h: Updated reminder comment about editing
-	macosx/Tcl.pbproj/project.pbxproj when version number changes.
-
-2003-07-16  Mumit Khan  <khan@nanotech.wisc.edu>
-
-	* generic/tclPathObj.c (SetFsPathFromAny): Add Cygwin specific code to
-	convert POSIX filename to native format.
-	* generic/tclFileName.c (Tcl_TranslateFileName): And remove from here.
-	(TclDoGlob): Adjust for cygwin and append / for dirs instead of \
-	* win/tclWinFile.c (TclpObjChdir): Use chdir on Cygwin.
-	[Patch 679315]
-
-2003-07-16  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* library/safe.tcl (FileInAccessPath): normalize paths before
-	comparison. [Bug 759607] (myers)
-
-	* unix/tclUnixNotfy.c (NotifierThreadProc): correct size of found and
-	word vars from int to long. [Bug 767578] (hgo)
-
-	* generic/tcl.h:       Add recognition of -DTCL_UTF_MAX=6 on the make
-	* generic/regcustom.h: line to support UCS-4 mode. No config arg at
-	this time, as it is not the recommended build mode.
-
-	* generic/tclPreserve.c: In Result and Preserve'd routines, do not
-	* generic/tclUtil.c:     assume that ckfree == free, as that is not
-	* generic/tclResult.c:   always true. [Bug 756791] (fuller)
-
-2003-07-16  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/CrtSlave.3 (Tcl_MakeSafe): Updated documentation to strongly
-	discourage use. IMHO code outside the core that uses this function is
-	a bug... [Bug 655300]
-
-2003-07-16  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclFileName.c (Tcl_GlobObjCmd):	[Bug 771840]
-	* generic/tclPathObj.c (Tcl_FSConvertToPathType):[Bug 771947]
-	* unix/tclUnixFCmd.c (GetModeFromPermString):	[Bug 771949]
-	Silence compiler warnings about unreached lines.
-
-	* library/tcltest/tcltest.tcl (ProcessFlags):	Corrected broken call
-	* library/tcltest/pkgIndex.tcl:			to [lrange]. Bumped to
-	version 2.2.4. [Bug 772333]
-
-2003-07-15  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/dltest/pkga.c (Pkga_EqObjCmd): Fix typo that was causing a
-	crash in load.test.
-
-2003-07-15  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/array.n: Make sure docs are synched with the 8.4 release.
-
-2003-07-15  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/http.n:  Updated SYNOPSIS to match actual syntax of commands.
-	[Bug 756112]
-
-	* unix/dltest/pkga.c:	Updated to not use Tcl_UtfNcmp and counted
-	strings instead of strcmp (not defined in any #include'd header) and
-	presumed NULL-terminated strings.
-
-	* generic/tclCompCmds.c (TclCompileIfCmd):  Prior fix of Bug 711371 on
-	2003-04-07 introduced a buffer overflow. Corrected. [Bug 771613]
-
-2003-07-15  Kevin B. Kenny  <kennykb@acm.org>
-
-	* win/rules.vc: Added a missing $(OPTDEFINES) which broke the build if
-	STATS=memdbg was specified.
-
-2003-07-15  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclCmdIL.c (SortCompare): Cleared up confusing error
-	message. [Bug 771539]
-
-2003-07-11  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/binary.test (binary-46.*): Tests to help enforce the current
-	behaviour.
-	* doc/binary.n: Documented that [binary format a] and [binary scan a]
-	do encoding conversion by dropping high bytes, unlike the rest of the
-	core. [Bug 735364]
-
-2003-07-11  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/package.tcl:  Corrected [pkg_mkIndex] bug reported on
-	comp.lang.tcl. The indexer was searching for newly indexed packages
-	instead of newly provided packages.
-
-2003-07-08  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* tests/winFCmd.test: fix for five tests under win98 [Bug 767679]
-
-2003-07-07  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* doc/array.n: add examples from Welton
-
-2003-06-23  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* doc/file.n: clarification of 'file tail' behaviour [Bug 737977]
-
-2003-07-04  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/expr.n: Tighten up the wording of some operations. [Bug 758488]
-
-	* tests/cmdAH.test: Made tests of [file mtime] work better on FAT
-	filesystems. [Patch 760768]  Also a little general cleanup.
-
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd): Made [string map] accept
-	dictionaries for maps.  This is much trickier than it looks, since map
-	entry ordering is significant. [Bug 759936]
-
-	* generic/tclVar.c (Tcl_ArrayObjCmd, TclArraySet): Made [array get]
-	and [array set] work with dictionaries, producing them and consuming
-	them. Note that for compatibility reasons, you will never get a dict
-	from feeding a string literal to [array set] since that alters the
-	trace behaviour of "multi-key" sets. [Bug 759935]
-
-2003-06-23  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclTrace.c: fix to Window debug build compilation error.
-
-2003-06-27  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/init.test: Added [cleanupTests] to report results of tests
-	* tests/pkg.test:  that run in slave interps.  [Bugs 761334,761344]
-
-	* tests/http.test: Used more reliable path to find httpd script.
-
-2003-06-25  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/init.test:  Added tests init-4.6.* to illustrate [Bug 760872]
-
-2003-06-25  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclTrace.c: New file, factoring out of virtually all the
-	various trace-related things from tclBasic.c and tclCmdMZ.c with the
-	goal of making this a separate maintenance area.
-
-2003-06-25  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure: Regen.
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): Add -ieee when compiling with cc and
-	add -mieee when compiling with gcc under OSF1-V5 "Tru64" systems. [Bug
-	748957]
-
-2003-06-24  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/encoding.n: Corrected the docs to say that [source] uses the
-	system encoding, which it always did anyway (since 8.1) [Bug 742100]
-
-2003-06-24  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclHash.c (Tcl_HashStats): Prevented occurrence of
-	division-by-zero problems.  [Bug 759749]
-
-2003-06-24  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/tclUnixPort.h: #undef inet_ntoa before #define to avoid
-	compiler warning under freebsd. [Bug 745844]
-
-2003-06-23  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* doc/dde.n:                 Committed TIP #135 which changes the
-	* win/tclWinDde.c:           -exact option to -force. Also cleaned a
-	* tests/winDde.test:         bug in the tests.
-	* library/dde/pkgIndex.tcl:  Incremented version to 1.2.5
-
-	* doc/dde.n:                 Committed TIP #120 which provides the
-	* win/tclWinDde.c:           dde package for safe interpreters.
-	* tests/winDde.test:         Incremented package version to 1.2.4
-	* library/dde/pkgIndex.tcl:
-
-2003-06-23  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFCmd.c: fix to bad error message when trying to do 'file
-	copy foo ""'. [Bug 756951]
-	* tests/fCmd.test: added two new tests for the bug.
-
-	* win/tclWinFile.c:
-	* win/tclWin32Dll.c: recommitted some filesystem globbing speed-ups,
-	but disabled some on the older Win 95/98/ME where they don't seem to
-	work.
-
-	* doc/FileSystem.3: documentation fix [Bug 720634]
-
-2003-06-18  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclNamesp.c (Tcl_Export): removed erroneous comments. [Bug
-	756744]
-
-2003-06-17  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* win/makefile.vc:  fixes to check-in below so compilation now works
-	again on Windows.
-
-	* generic/tclCmdMZ.c:
-	* tests/regexp.test: fixing of bugs related to regexp and regsub
-	matching of empty strings. Addition of a number of new tests. [Bug
-	755335]
-
-2003-06-16  Andreas Kupries  <andreask@activestate.com>
-
-	* win/Makefile.in:  Haven't heard back from David for a week. Now
-	* win/configure:    committing the remaining changes.
-	* win/configure.in: Note: In active contact with Helmut Giese about
-	* win/makefile.vc:  the borland relatedchanges. This part will see
-	* win/rules.vc:     future updates.
-	* win/tcl.m4:
-	* win/makefile.bc:
-
-2003-06-10  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclConfig.c (ASSOC_KEY): Changed the key to
-	"tclPackageAboutDict" (tcl prefix) to make collisions with the keys of
-	other packages more unlikely.
-
-2003-06-10  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclBasic.c:
-	* generic/tclExecute.c: let TclExecuteObjvInternal call
-	TclInterpReady instead of relying on its callers to do so; fix for the
-	part of [Bug 495830] that is new in 8.4.
-	* tests/interp.test: Added tests 18.9 (knownbug) and 18.10
-
-2003-06-09  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tcl.decls:  Ported the changes from the
-	* generic/tcl.h:      'tip-59-implementation' branch into the CVS
-	* generic/tclBasic.c: head. Regenerated stub table. Regenerated the
-	* generic/tclInt.h:   configure's scripts, with help from Joe English.
-	* generic/tclDecls.h:
-	* generic/tclStubInit.c:
-	* generic/tclConfig.c:
-	* generic/tclPkgConfig.c:
-	* unix/Makefile.in:
-	* unix/configure.in:  The changes in the windows section are not yet
-	* unix/tcl.m4:        committed, they await feedback from David
-	* unix/mkLinks:       Gravereaux.
-	* doc/RegConfig.3:
-	* mac/tclMacPkgConfig.c:
-	* tests/config.test:
-
-2003-06-09  Don Porter  <dgp@users.sourceforge.net>
-
-	* string.test (string-4.15): Added test for [string first] bug
-	reported in Tcl 8.3, where test for all-single-byte-encoded strings
-	was not reliable.
-
-2003-06-04  Joe Mistachkin  <joe@mistachkin.com>
-
-	* tools/man2help.tcl: Added duplicate help section checking and
-	* tools/index.tcl:    corrected a comment typo for the getTopics proc
-	in index.tcl. [Bug 748700]
-
-2003-06-02  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* win/tclWinFCmd.c:
-	* tests/fCmd.test: fix to [Bug #747575] in which a bad error message
-	is given when trying to rename a busy directory to one with the same
-	prefix, but not the same name. Added three new tests.
-
-2003-05-23  D. Richard Hipp <drh@hwaci.com>
-
-	* win/tclWinTime.c: Add tests to detect and avoid a division by zero
-	in the windows precision timer calibration logic.
-
-2003-05-23  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclObj.c (tclCmdNameType):  Converted internal rep
-	management of the cmdName Tcl_ObjType the opposite way, to always use
-	the twoPtrValue instead of always using the otherValuePtr. Previous
-	fix on 2003-05-12 broke several extensions that wanted to poke around
-	with the twoPtrValue.ptr2 value of a cmdName Tcl_Obj, like TclBlend
-	and e4graph. [Bug 726018]
-	Thanks to George Petasis for the bug report and Jacob Levy for testing
-	assistance.
-
-2003-05-23  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/mkLinks: Set the var S to "" at the top of the file to avoid
-	error when user has set S to something. [Tk Bug 739833]
-
-2003-05-22  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Tcl.pbproj/project.pbxproj: added missing references to new
-	source files tclPathObj.c and tclMacOSXFCmd.c.
-
-	* macosx/tclMacOSXBundle.c: fixed a problem that caused only the first
-	call to Tcl_MacOSXOpenVersionedBundleResources() for a given bundle
-	identifier to succeed. This caused the tcl runtime library not to be
-	found in all interps created after the inital one.
-
-2003-05-19  Kevin B. Kenny  <kennykb@hippolyta>
-
-	* unix/tclUnixTime.c: Corrected a bug in conversion of non-ASCII
-	chars in the format string.
-
-2003-05-19  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Tcl.pbproj/project.pbxproj: changed tclConfig.sh location in
-	versioned framework subdirectories to be identical to location in
-	framework toplevel; fixed stub library symbolic links to be tcl
-	version specific.
-
-	* unix/tclUnixTime.c: fixed typo.
-
-2003-05-18  Kevin Kenny  <kennykb@acm.org>
-
-	* compat/strftime.c:  Modified TclpStrftime to return its result in
-	* generic/tclClock.c: UTF-8 encoding, and removed the conversion from
-	* mac/tclMacTime.c:   system encoding to UTF-8 from [clock format].
-	* unix/tclUnixTime.c: Needed to avoid double conversion of the
-	* win/tclWinTime.c:   timezone name on Windows systems. [Bug 624408]
-
-2003-05-16  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* library/dde/pkgIndex.tcl:  Applied TIP #130 which provides for
-	* tests/winDde.test:         unique dde server names. Added some more
-	* win/tclWinDde.c:           tests. Fixes [Bug 219293]
-
-	* doc/dde.n: Updated documentation re TIP #130.
-	* tests/winDde.test: Applied patch for [Bug 738929] by KKB and changed
-	to new-style tests.
-
-2003-05-16  Kevin B. Kenny  <kennykb@acm.org>
-
-	* unix/Makefile.in:	Removed one excess source file tclDToA.c
-
-2003-05-16  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Tcl.pbproj/project.pbxproj: updated copyright year.
-
-2003-05-15  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclGetDate.y: added further hackery to the yacc
-	* generic/tclDate.c:    post-processing to arrange for the code to set
-	* unix/Makefile.in:     up exit handlers to free the stacks. [Bug
-				736425]
-
-2003-05-15  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/tclWinFile.c (TclpMatchInDirectory): revert glob code to r1.44
-	as 2003-04-11 optimizations broke Windows98 glob'ing.
-
-	* doc/socket.n: nroff font handling correction
-
-	* library/encoding/gb2312-raw.enc (new): This is the original
-	gb2312.enc renamed to allow for it to still be used. This is needed by
-	Tk (unix) because X fonts with gb2312* charsets really do want the
-	original gb2312 encoding. [Bug 557030]
-
-2003-05-14  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclCmdAH.c (Tcl_FormatObjCmd): Stop unwarranted demotion of
-	wide values to longs by formatting of int values. [Bug 699060]
-
-2003-05-14  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* library/encoding/gb2312.enc: copy euc-cn.enc over original
-	gb2312.enc. gb2312.enc appeared to not work as expected, and most uses
-	of gb2312 really mean euc-cn (which may be the cause of the problem).
-	[Bug 557030]
-
-2003-05-14  Daniel Steffen  <das@users.sourceforge.net>
-
-	Implementation of TIP 118:
-
-	* generic/tclFCmd.c (TclFileAttrsCmd): return the list of attributes
-	that can be retrieved without error for a given file, instead of
-	aborting the whole command when any error occurs.
-
-	* unix/tclUnixFCmd.c: added support for new file attributes and for
-	copying Mac OS X file attributes & resource fork during [file copy].
-
-	* generic/tclInt.decls: added declarations of new external commands
-	needed by new file attributes support in tclUnixFCmd.c.
-
-	* macosx/tclMacOSXFCmd.c (new): Mac OS X specific implementation of
-	new file attributes and of attribute & resource fork copying.
-
-	* mac/tclMacFCmd.c: added implementation of -rsrclength attribute &
-	fixes to other attributes for consistency with OSX implementation.
-
-	* mac/tclMacResource.c: fixes to OSType handling.
-
-	* doc/file.n: documentation of [file attributes] changes.
-
-	* unix/configure.in: check for APIs needed by new file attributes.
-
-	* unix/Makefile.in:
-	* unix/tcl.m4: added new platform specifc tclMacOSXFCmd.c source.
-
-	* unix/configure:
-	* generic/tclStubInit.c:
-	* generic/tclIntPlatDecls.h: regen.
-
-	* tools/genStubs.tcl: fixes to completely broken code trying to
-	prevent overlap of "aqua", "macosx", "x11" and "unix" stub entries.
-
-	* tests/unixFCmd.test: added tests of -readonly attribute.
-
-	* tests/macOSXFCmd.test (new): tests of macosx file attributes and of
-	preservation of attributes & resource fork during [file copy].
-
-	* tests/macFCmd.test: restore -readonly attribute of test dir, as
-	otherwise its removal can fail on unices supporting -readonly.
-
-2003-05-13  David Gravereaux <davygrvy@pobox.com>
-
-	* generic/tclEnv.c: Another putenv() copy behavior problem repaired
-	when compiling on windows and using microsoft's runtime. [Bug 736421]
-
-2003-05-13  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclIOUtil.c: ensure cd is thread-safe.
-	[Bug 710642] (vasiljevic)
-
-2003-05-13  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclEvent.c (Tcl_Finalize): Removed unused variable to reduce
-	compiler warnings. [Bug 664745]
-
-2003-05-13  Joe Mistachkin  <joe@mistachkin.com>
-
-	* generic/tcl.decls:  Changed Tcl_JoinThread parameter name from
-	* generic/tclDecls.h: "id" to "threadId". [Bug 732477]
-	* unix/tclUnixThrd.c:
-	* win/tclWinThrd.c:
-	* mac/tclMacThrd.c:
-
-2003-05-13  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tcl.decls:
-	* macosx/tclMacOSXBundle.c: added extended version of the
-	Tcl_MacOSXOpenBundleResources() API taking an extra version number
-	argument: Tcl_MacOSXOpenVersionedBundleResources(). This is needed to
-	be able to access bundle resources in versioned frameworks such as Tcl
-	and Tk, otherwise if multiple versions were installed, only the latest
-	version's resources could be accessed. [Bug 736774]
-
-	* unix/tclUnixInit.c (Tcl_MacOSXGetLibraryPath): use new versioned
-	bundle resource API to get tcl runtime library for TCL_VERSION. [Bug
-	736774]
-
-	* generic/tclPlatDecls.h:
-	* generic/tclStubInit.c: regen.
-
-	* unix/tclUnixPort.h: worked around the issue of realpath() not
-	being thread-safe on Mac OS X by defining NO_REALPATH for threaded
-	builds on Mac OS X. [Bug 711232]
-
-2003-05-12  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/cmdAH.test: General clean-up of tests so that all
-	tcltest-specific commands are protected by constraints and all
-	platforms see the same number of tests. [Bug 736431]
-
-2003-05-12  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclInterp.c: (AliasObjCmd):   Added refCounting of the words
-	* tests/interp.test (interp-33.1):      of the target of an interp
-	alias during its execution. Also added test. [Bug 730244]
-
-	* generic/tclBasic.c (TclInvokeObjectCommand):  objv[argc] is no
-	longer set to NULL (Tcl_CreateObjCommand docs already say that it
-	should not be accessed).
-
-	* tests/cmdMZ.test:  Forgot to import [temporaryDirectory].
-
-	* generic/tclObj.c (tclCmdNameType):  Corrected variable use of the
-	otherValuePtr or the twoPtrValue.ptr1 fields to store a
-	(ResolvedCmdName *) as the internal rep. [Bug 726018]
-
-	* doc/Eval.3:  Corrected prototype for Tcl_GlobalEvalObj [Bug 727622].
-
-2003-05-12  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclVar.c (TclObjLookupVar): [Bug 735335] temporary fix,
-	disabling usage of tclNsVarNameType.
-	* tests/var.test (var-15.1): test for [Bug 735335]
-
-2003-05-10  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/tclWinSerial.c (SerialCloseProc): correct mem leak on closing a
-	Windows serial port [Bug 718002] (schroedter)
-
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd): prevent string repeat crash
-	when overflow sizes were given (throws error). [Bug 714106]
-
-2003-05-09  Joe Mistachkin <joe@mistachkin.com>
-
-	* generic/tclThreadAlloc.c (TclFreeAllocCache): Fixed memory leak
-	caused by treating cachePtr as a TLS index. [Bug 731754]
-
-	* win/tclAppInit.c (Tcl_AppInit): Fixed memory leaks caused by not
-	freeing the memory allocated by setargv and the async handler created
-	by Tcl_AppInit. An exit handler has been created that takes care of
-	both leaks. In addition, Tcl_AppInit now uses ckalloc instead of
-	Tcl_Alloc to allow for easier leak tracking and to be more consistent
-	with the rest of the Tcl core. [Bugs 733156, 733221]
-
-	* tools/encoding/txt2enc.c (main): Fixed memory leak caused by failing
-	to free the memory used by the toUnicode array of strings [Bug 733221]
-
-2003-05-09  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompile.c (TclCompileScript):
-	* tests/compile.test (compile-3.5): corrected wrong test and
-	behaviour in the earlier fix for [Bug 705406]; Don Porter reported
-	this as [Bug 735055], and provided the solution.
-
-2003-05-09  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclCmdMZ.c (Tcl_ReturnObjCmd): The array of strings passed
-	to Tcl_GetIndexFromObj must be NULL terminated. [Bug 735186]
-	Thanks to Joe Mistachkin for spotting this.
-
-2003-05-07  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/trace.n: Fixed very strange language in the documentation for
-	'trace add execution'. [Bug 729821]
-
-	* generic/tclCmdMZ.c (Tcl_TraceObjCmd): Made error message for 'trace
-	info' more consistent with documentation. [Bug 706961]
-
-	* generic/tclDictObj.c (DictInfoCmd): Fixed memory leak caused by
-	confusion about string ownership.  [Bug 731706]
-
-2003-05-05  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:		Implementation of TIP 90, which
-	* generic/tclCmdAH.c:		extends the [catch] and [return]
-	* generic/tclCompCmds.c:	commands to enable creation of a
-	* generic/tclExecute.c:		proc that is a replacement for
-	* generic/tclInt.h:		[return]. [Patch 531640]
-	* generic/tclProc.c:
-	* generic/tclResult.c:
-	* tests/cmdAH.test:
-	* tests/cmdMZ.test:
-	* tests/error.test:
-	* tests/proc-old.test:
-
-	* library/tcltest/tcltest.tcl: The -returnCodes option to [test]
-	failed to recognize the symbolic name "ok" for return code 0.
-
-2003-05-05  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclBasic.c (Tcl_HideCommand): Fixed error message for
-	grammar and spelling.
-
-2003-04-28  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclDictObj.c (DictIncrCmd): Updated to reflect the behaviour
-	with wide increments of the normal [incr] command.
-	* generic/tclInt.decls: Added TclIncrWideVar2 to internal stub table
-	and cleaned up.
-	* tests/incr.test (incr-3.*):
-	* generic/tclVar.c (TclIncrWideVar2, TclPtrIncrWideVar):
-	* generic/tclExecute.c (TclExecuteByteCode):
-	* generic/tclCmdIL.c (Tcl_IncrObjCmd): Make [incr] work when trying to
-	increment by wide values. [Bug 728838]
-
-	* generic/tclCompCmds.c (TclCompileSwitchCmd): Default mode of
-	operation of [switch] is exact matching. [Bug 727563]
-
-2003-04-25  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:  Tcl_EvalObjv() failed to honor the
-	TCL_EVAL_GLOBAL flag when resolving command names. Tcl_EvalEx passed a
-	string rep including leading whitespace and comments to
-	TclEvalObjvInternal().
-
-2003-04-25  Andreas Kupries  <andreask@activestate.com>
-
-	* win/tclWinThrd.c: Applied SF patch #727271. This patch changes the
-	code to catch any errors returned by the windows functions handling
-	TLS ASAP instead of waiting to get some mysterious crash later on due
-	to bogus pointers. Patch provided by Joe Mistachkin.
-
-	This is a stop-gap measure to deal with the low number of ?TLS slots
-	provided by some of the variants of Windows (60-80).
-
-2003-04-24  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFileName.c: fix to bug reported privately by Jeff where,
-	for example, 'glob -path {[tcl]} *' gets confused by the leading
-	special character (which is escaped internally), and instead lists
-	files in '/'. Bug only occurs on Windows where '\' is also a directory
-	separator.
-	* tests/fileName.test: added test for the above bug.
-
-2003-04-22  Andreas Kupries  <andreask@activestate.com>
-
-	* The changes below fix SF bugs [593810], and [718045].
-
-	* generic/tclIO.c (Tcl_CutChannel, Tcl_SpliceChannel): Invoke
-	TclpCutSockChannel and TclpSpliceSockChannel.
-
-	* generic/tclInt.h: Declare TclpCutSockChannel and
-	TclpSpliceSockChannel.
-
-	* unix/tclUnixSock.c (TclpCutSockChannel, TclpSpliceSockChannel):
-	Dummy functions, on unix the sockets are _not_ handled specially.
-
-	* mac/tclMacSock.c (TclpCutSockChannel, TclpSpliceSockChannel):
-	* win/tclWinSock.c (TclpCutSockChannel, TclpSpliceSockChannel): New
-	functions to handle socket specific cut/splice operations: auto-init
-	of socket system for thread on splice, management of the module
-	internal per-thread list of sockets, management of association of
-	sockets with HWNDs for event notification.
-
-	* win/tclWinSock.c (NewSocketInfo): Extended initialization
-	assignments to cover all items of the structure. During debugging of
-	the new code mentioned above I found that two fileds could contain
-	bogus data.
-
-	* win/tclWinFile.c: Added #undef HAVE_NO_FINDEX_ENUMS before
-	definition because when compiling in debug mode the compiler complains
-	about a redefinition, and this warning is also treated as an error.
-
-2003-04-21  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl:  When the return code of a test does
-	not meet expectations, report that as the reason for test failure, and
-	do not attempt to check the test result for correctness. [Bug 725253]
-
-2003-04-18  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/tclWinInt.h (VER_PLATFORM_WIN32_CE): conditionally define.
-	* win/tclWinInit.c: recognize Windows CE as a Win platform. This just
-	recognizes CE - full support will come later.
-
-	* win/configure: regen
-	* win/configure.in (SHELL): force it to /bin/sh as autoconf 2.5x
-	uses /bin/bash, which can fail to find exes in the path (ie: lib).
-
-	* generic/tclExecute.c (ExprCallMathFunc): remove incorrect
-	extraneous cast from Tcl_WideAsDouble.
-
-2003-04-18  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/open.n:		Moved serial port options from [fconfigure] to
-	* doc/fconfigure.n:	[open] as it is up to the creator of a channel
-				to describe the channel's special config
-				options. [Bug 679010]
-
-2003-04-16  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tcl.h:	Made changes so that the "wideInt" Tcl_ObjType
-	* generic/tclObj.c:	is defined on all platforms, even those where
-	* generic/tclPort.h:	TCL_WIDE_INT_IS_LONG is defined. Also made the
-	Tcl_Value struct have a wideValue field on all platforms. This is a
-	***POTENTIAL INCOMPATIBILITY*** for TCL_WIDE_INT_IS_LONG platforms
-	because that struct changes size. This is the same TIP 72
-	incompatibility that was seen on other platforms at the 8.4.0 release,
-	when this change should have happened as well. [Bug 713562]
-
-	* generic/tclInt.h:  New internal macros TclGetWide() and
-	TclGetLongFromWide() to deal with both forms of the "wideInt"
-	Tcl_ObjType, so that conditional TCL_WIDE_INT_IS_LONG code is confined
-	to the header file.
-
-	* generic/tclCmdAH.c:	Replaced most coding that was conditional
-	* generic/tclCmdIL.c:	on TCL_WIDE_INT_IS_LONG with code that
-	* generic/tclExecute.c: works across platforms, sometimes using
-	* generic/tclTest.c:	the new macros above to do it.
-	* generic/tclUtil.c:
-	* generic/tclVar.c:
-
-2003-04-17  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/socket.n: Added a paragraph to remind people to specify their
-	encodings when using sockets. [Bug 630621]
-
-2003-04-16  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/CrtMathFnc.3: Functions also have to deal with wide ints, but
-	this was not documented. [Bug 709720]
-
-2003-04-16  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclPathObj.c: removed undesired 'static' for function which
-	is now shared (previously it was duplicated).
-
-2003-04-15  Joe English  <jenglish@users.sourceforge.net>
-
-	* doc/namespace.n: added example section "SCOPED SCRIPTS", supplied by
-	Kevin Kenny. [Bug 219183]
-
-2003-04-15  Kevin Kenny  <kennykb@acm.org>
-
-	* makefile.vc: Updated makefile.vc to conform with Mo DeJong's changes
-	to Makefile.in and tclWinPipe.c on 2003-04-14. Now passes TCL_PIPE_DLL
-	in place of TCL_DBGX.
-	* win/tclWinTime.c: Corrected use of types to make compilation
-	compatible with VC++5.
-
-2003-04-15  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclIOUtil.c: finished check-in from yesterday, removing
-	duplicate function definition.
-
-2003-04-14  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclClock.c:	Corrected compiler warnings.
-	* generic/tclTest.c:
-
-2003-04-14  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/Makefile.in: Don't define TCL_DBGX symbol for every compile.
-	Instead, define TCL_PIPE_DLL only when compiling tclWinPipe.c. This
-	will break other build systems, so they will need to remove the
-	TCL_DBGX define and replace it with a define for TCL_PIPE_DLL.
-	* win/tclWinPipe.c (TclpCreateProcess): Remove PREFIX_IDENT and
-	DEBUG_IDENT from top of file. Use TCL_PIPE_DLL passed in from build
-	env instead of trying to construct the dll name from already defined
-	symbols. This approach is more flexible and better in the long run.
-
-2003-04-14  Kevin Kenny  <kennykb@acm.org>
-
-	* win/tclWinFile.c: added conditionals to restore compilation on
-	VC++6, which was broken by recent changes.
-
-2003-04-14  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclIOUtil.c:
-	* generic/tclPathObj.c:
-	* generic/tclFileSystem.h: overlooked one function which was
-	duplicated, so this is now shared between modules.
-	* win/tclWinFile.c: allow this file to compile with VC++ 5.2 again
-	since Mingw build fixes broke that.
-
-2003-04-13  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/configure: Regen.
-	* win/configure.in: Add check for FINDEX_INFO_LEVELS from winbase.h,
-	known to be a problem in VC++ 5.2. Define HAVE_NO_FINDEX_ENUMS if the
-	define does not exist.
-	* win/tclWinFile.c: Put declarations for FINDEX_INFO_LEVELS and
-	FINDEX_SEARCH_OPS inside a check for HAVE_NO_FINDEX_ENUMS so that
-	these are not declared twice. This fixes the Mingw build.
-	* win/tclWinTime.c: Rework the init of timeInfo so that the number or
-	initializers matches the declaration. This was broken under Mingw. Add
-	cast to avoid compile warning when calling the AccumulateSample
-	function.
-
-2003-04-12  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/Makefile.in (GENERIC_OBJS): add missing tclPathObj.c
-
-2003-04-12  Kevin Kenny  <kennykb@acm.org>
-
-	* doc/clock.n:
-	* generic/tclClock.c (Tcl_ClockObjCmd):
-	* tests/clock.test: Implementation of TIP #124. Also renumbered test
-	cases to avoid duplicates. [Bug 710310]
-	* tests/winTime.test:
-	* win/tclWinTest.c (TestwinclockCmd, TestwinsleepCmd):
-	* win/tclWinTime.c (Tcl_WinTime, UpdateTimeEachSecond,
-	(ResetCounterSamples, AccumulateSample, SAMPLES, TimeInfo): Made
-	substantial changes to the phase-locked loop (replaced an IIR filter
-	with an FIR one) in a quest for improved loop stability (Bug not
-	logged at SF, but cited in private communication from Jeff Hobbs).
-
-2003-04-11  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd,STR_IS_INT):  Corrected
-	inconsistent results of [string is integer] observed on systems where
-	sizeof(long) != sizeof(int). [Bug 718878]
-	* tests/string.test: Added tests for Bug 718878.
-	* doc/string.n: Clarified that [string is integer] accepts 32-bit
-	integers.
-
-2003-04-11  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c (UpdateInterest): When dropping interest in
-	TCL_READABLE now dropping interest in TCL_EXCEPTION too. This fixes a
-	bug where Expect detects eof on a file prematurely on solaris 2.6 and
-	higher. A much more complete explanation is in the code itself (40
-	lines of comments for a one-line change :)
-
-2003-04-11  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* tests/cmdAH.test: fix test suite problem if /home is a symlink. [Bug
-	703264]
-	* generic/tclIOUtil.c: fix bad error message with 'cd ""'. [Bug
-	704917]
-	* win/tclWinFile.c, win/tclWin32Dll.c:
-	* win/tclWinInt.h: allow Tcl to differentiate between reparse points
-	which are symlinks and mounted volumes, and correctly handle the
-	latter. This involves some elaborate code to find the actual drive
-	letter (if possible) corresponding to a mounted volume. [Bug 697862]
-	* tests/fileSystem.test: add constraints to stop tests running in
-	ordinary tcl interpreter. [Bug 705675]
-
-	* generic/tclIOUtil.c:
-	* generic/tclPathObj.c: (new file)
-	* generic/tclFileSystem.h: (new file)
-	* win/makefile.vc:
-	Split path object handling out of the virtual filesystem layer, into
-	tclPathObj.c. This refactoring cleans up the internal filesystem code,
-	and will make any future optimisations and forthcoming better
-	thread-safety much easier.
-
-	* generic/tclTest.c:
-	* tests/reg.test: added some 'knownBug' tests for problems in Tcl's
-	regexp code with the TCL_REG_CAN_MATCH flag (see Bug 703709). Code too
-	impenetrable to fix right now, but a fix is needed for tip113 to work
-	correctly.
-
-	* tests/fCmd.test
-	* win/tclWinFile.c: added some filesystem optimisation to the 'glob'
-	implementation, and some new tests.
-
-	* generic/tclCmdMZ.c: fix typo in comment
-
-	* tests/winFile.test:
-	* tests/ioUtil.test:
-	* tests/unixFCmd.test: renumbered tests with duplicate numbers. [Bug
-	710361]
-
-2003-04-10  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/binary.n: Fixed typo in [binary format w] desc. [Bug 718543]
-
-2003-04-08  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclCmdAH.c (Tcl_ErrorObjCmd): Strings are only empty if
-	they have zero length, not if their first byte is zero, so fix test
-	guarding Tcl_AddObjErrorInfo to take this into account. [Bug
-	reported by Don Porter; no bug-id.]
-
-2003-04-07  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCompCmds.c (TclCompileIfCmd):  Corrected string limits of
-	arguments interpolated in error messages. [Bug 711371]
-
-	* generic/tclCmdMZ.c (TraceExecutionProc):  Added missing
-	Tcl_DiscardResult() call to avoid memory leak.
-
-2003-04-07  Donal K. Fellows  <zzcgudf@ernie.mvc.mcc.ac.uk>
-
-	* generic/tclDictObj.c (Tcl_DictObjCmd): Stopped compilers from
-	moaning about switch fall-through.  [Bug 716327]
-	(DictFilterCmd): Yet more warning killing, this time reported by
-	Miguel Sofer by private chat.
-
-2003-04-07  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/dict.test (dict-2.6):
-	* generic/tclDictObj.c (Tcl_NewDictObj, Tcl_DbNewDictObj): Oops!
-	Failed to fully initialise the Dict structure.
-	(DictIncrCmd): Moved valueAlreadyInDictionary label to stop compiler
-	complaints. [Bug 715751]
-
-	* generic/tclDictObj.c (DictIncrCmd): Followed style in the rest of
-	the core by commenting out wide-specific operations on platforms where
-	wides are longs, and used longs more thoroughly than ints through
-	[dict incr] anyway to forestall further bugs.
-	* generic/tclObj.c: Made sure there's always a tclWideIntType
-	implementation available, not that it is always useful. [Bug 713562]
-
-2003-04-05  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclDictObj.c: Removed commented out notes on declarations to
-	be moved to elsewhere in the Tcl core.
-
-	* generic/tclInt.h:	Final stages of plumbing in.
-	* generic/tclBasic.c:
-	* generic/tclObj.c (TclInitObjSubsystem):
-
-	* unix/Makefile.in, win/Makefile.in, win/makefile.[bv]c: Build support.
-	* generic/tcl.decls: Added dict public API to stubs table.
-	* generic/tcl.h (Tcl_DictSearch): Added declaration of structure to
-	allow user code to iterate over dictionaries.
-
-	* doc/DictObj.3:	New files containing dictionary implementation
-	* doc/dict.n:		documentation and tests as as mandated by TIP
-	* generic/tclDictObj.c: #111.
-	* tests/dict.test:
-
-2003-04-03  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure:
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): Don't set TCL_LIBS if it is already
-	set to support use of TCL_LIBS var from tclConfig.sh in the Tk
-	configure script.
-
-2003-04-03  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/Makefile.in: Don't subst MATH_LIBS, LIBS, and DL_LIBS
-	separately. Instead, just subst TCL_LIBS since it includes the
-	others.
-	* unix/configure: Regen.
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS, SC_TCL_LINK_LIBS): Set and subst
-	TCL_LIBS in SC_CONFIG_CFLAGS instead of SC_TCL_LINK_LIBS. Don't subst
-	MATH_LIBS since it is now covered by TCL_LIBS.
-	* unix/tclConfig.sh.in: Use TCL_LIBS instead of DL_LIBS, LIBS, and
-	MATH_LIBS.
-	* unix/dltest/Makefile.in: Ditto.
-
-2003-04-03  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCompCmds.c (TclCompileReturnCmd):  Now that [return]
-	compiles to INST_RETURN, it is safe to compile even outside a proc.
-
-2003-04-02  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/configure: Regen.
-	* win/configure.in: Set stub lib flag based on new LIBFLAGSUFFIX
-	variable.
-	* win/tcl.m4 (SC_CONFIG_CFLAGS): Set new LIBFLAGSUFFIX that works like
-	LIBSUFFIX, it is used when creating library names. The previous
-	implementation would generate -ltclstub85 instead of -ltclstub85s when
-	configured with --disable-shared.
-
-2003-04-02  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclParse.c (TclSubstTokens):  Moved declaration of
-	utfCharBytes to beginning of procedure so that it does not go out of
-	scope (get free()d) while append is still pointing to it. [Bugs
-	703167, 713754]
-
-2003-04-01  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure: Regen.
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): Check for inet_ntoa in -lbind inside
-	the BeOS block since doing it later broke the build under SuSE 7.3.
-	[Bug 713128]
-
-2003-04-01  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/README:  Direct [source] of *.test files is no longer
-	recommended. The tests/*.test files should only be evaluated under the
-	control of the [runAllTests] command in tests/all.tcl.
-
-	* generic/tclExecute.c (INST_RETURN):  Bytecompiled [return] failed to
-	reset iPtr->returnCode, causing tests parse-18.17 and parse-18.21 to
-	fail strangely.
-	* tests/parse.test (parse-18.21):  Corrected now functioning test.
-	Added further coverage tests.
-
-2003-03-31  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/parse.test (parse-18.*):  Coverage tests for the new
-	implementation of Tcl_SubstObj(). Note that tests parse-18.17 and
-	parse-18.21 demonstrate some bugs left to fix in the current code.
-
-2003-03-27  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure: Regen.
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): Use -Wl,--export-dynamic instead of
-	-rdynamic for LDFLAGS. The -rdynamic is not documented so it seems
-	better to pass the --export-dynamic flag to the linker. [Patch 573395]
-
-2003-03-27  Miguel Sofer <msofer@users.sf.net>
-
-	* tests/encoding.test:
-	* tests/proc-old.test:
-	* tests/set-old.test: Altered test numers to eliminate duplicates,
-	[Bugs 710313, 710320, 710352]
-
-2003-03-27  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/parseOld.test:	Altered test numers to eliminate duplicates.
-	* tests/parse.test:	[Bugs 710365, 710369]
-	* tests/expr-old.test:
-	* tests/expr.test:
-
-	* tests/utf.test:	Altered test numers to eliminate duplicates.
-	* tests/trace.test:	[Bugs 710322, 710327, 710349, 710363]
-	* tests/lsearch.test:
-	* tests/list.test:
-	* tests/info.test:
-	* tests/incr-old.test:
-	* tests/if-old.test:
-	* tests/format.test:
-	* tests/foreach.test:
-
-2003-03-26  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure: Regen.
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS, SC_TCL_LINK_LIBS): Add BeOS system to
-	SC_CONFIG_CFLAGS. Check for inet_ntoa in -lbind, needed for BeOS.
-
-2003-03-26  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/tcltest.n:
-	* library/tcltest/tcltest.tcl:  Added reporting during [configure
-	-debug 1] operations to warn about multiple uses of the same test
-	name. [FRQ 576693]
-
-	* tests/msgcat.test (msgcat-2.2.1): changed test name to avoid
-	duplication. [Bug 710356]
-
-	* unix/dltest/pkg?.c:  Changed all Tcl_InitStubs calls to pass
-	argument exact = 0, so that rebuilds are not required when Tcl
-	bumps to a new version.  [Bug 701926]
-
-2003-03-24  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclVar.c:
-	* tests/var.test: fixing ObjMakeUpvar's lookup algorithm for the
-	created local variable. [Bug 631741] (Chris Darroch) and [Bug 696893]
-	(David Hilker)
-
-2003-03-24  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* library/dde/pkgIndex.tcl: bumped version to 1.2.2 in tclWinDde.c,
-	now adding here too.
-
-2003-03-22  Kevin Kenny  <kennykb@acm.org>
-
-	* library/dde/pkgIndex.tcl:
-	* library/reg/pkgIndex.tcl: Fixed a bug where [package require dde]
-	or [package require registry] attempted to load the release version
-	of the DLL into a debug build. [Bug 708218] Thanks to Joe Mistachkin
-	for the patch.
-	* win/makefile.vc: Added quoting around the script name in the 'test'
-	target; Joe Mistachkin insists that he has a configuration that fails
-	to launch tcltest without it, and it appears harmless otherwise.
-
-2003-03-22  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* win/tclWinDde.c: Make dde services conform the the documentation
-	such that giving only a topic name really returns all services with
-	that topic. [Bug 219155]
-	Prevent hangup caused by dde server applications failing to process
-	messages. [Bug 707822]
-	* tests/winDde.test: Corrected labels and added a test for search by
-	topic name.
-
-2003-03-20  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclInt.h (tclOriginalNotifier):
-	* generic/tclStubInit.c (tclOriginalNotifier):
-	* mac/tclMacNotify.c (Tcl_SetTimer,Tcl_WaitForEvent):
-	* unix/tclUnixNotfy.c (Tcl_SetTimer,Tcl_WaitForEvent,
-	(Tcl_CreateFileHandler,Tcl_DeleteFileHandler):
-	* win/tclWinNotify.c (Tcl_SetTimer,Tcl_WaitForEvent):  Some linkers
-	apparently use a different representation for a pointer to a function
-	within the same compilation unit and a pointer to a function in a
-	different compilation unit. This causes checks like those in the
-	original notifier procedures to fall into infinite loops. The fix is
-	to store pointers to the original notifier procedures in a struct
-	defined in the same compilation unit as the stubs tables, and compare
-	against those values. [Bug 707174]
-
-	* generic/tclInt.h:  Removed definition of ParseValue struct that is
-	no longer used.
-
-2003-03-19  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompile.c:
-	* tests/compile.test: bad command count on TCL_OUT_LINE_COMPILE.
-	[Bug 705406] (Don Porter)
-
-2003-03-19  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/auto.tcl:		Replaced [regexp] and [regsub] with
-	* library/history.tcl:		[string map] where possible.  Thanks
-	* library/ldAout.tcl:		to David Welton. [Bugs 667456,667558]
-	* library/safe.tcl:		Bumped to http 2.4.3, opt 0.4.5, and
-	* library/http/http.tcl:	tcltest 2.2.3.
-	* library/http/pkgIndex.tcl:
-	* library/opt/optparse.tcl:
-	* library/opt/pkgIndex.tcl:
-	* library/tcltest/tcltest.tcl:
-	* library/tcltest/pkgIndex.tcl:
-	* tools/genStubs.tcl:
-	* tools/tcltk-man2html.tcl:
-	* unix/mkLinks.tcl:
-
-	* doc/Eval.3 (Tcl_EvalObjEx):			Corrected CONST and
-	* doc/ParseCmd.3 (Tcl_EvalTokensStandard):	return type errors in
-	documentation. [Bug 683994]
-
-	* generic/tclCompCmds.c (TclCompileReturnCmd):  Alternative fix for
-	* generic/tclCompile.c (INST_RETURN):	[Bug 633204] that uses a new
-	* generic/tclCompile.h (INST_RETURN):	bytecode INST_RETURN to
-	* generic/tclExecute.c (INST_RETURN):	properly bytecode the [return]
-	command to something that returns TCL_RETURN.
-
-2003-03-18  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/configure: Regen.
-	* win/configure.in: Don't run the AC_CYGWIN macro since it uses
-	AC_CANONICAL_HOST under autoconf 2.5X. Just check to see if __CYGWIN__
-	is defined by the compiler and set the ac_cv_cygwin variable based on
-	that. [Bug 705912]
-
-2003-03-18  Kevin Kenny  <kennykb@users.sourceforge.net>
-
-	* tests/registry.test: Changed the conditionals to avoid an abort if
-	[testlocale] is missing, as when running the test in tclsh rather than
-	tcltest. [Bug 705677]
-
-2003-03-18  Daniel Steffen  <das@users.sourceforge.net>
-
-	* tools/tcltk-man2html.tcl: added support for building 'make html'
-	from inside distribution directories named with 8.x.x version numbers.
-	tcltk-man2html now uses the latest tcl8.x.x resp. tk8.x.x directories
-	found inside its --srcdir argument.
-
-2003-03-17  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* tests/format.test: Renumber tests, a bunch of tests all had the same
-	id.
-
-2003-03-17  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/lsearch.n:	Altered documentation of -ascii options so
-	* doc/lsort.n:		they don't specify that they operate on ASCII
-				strings, which they never did anyway. [Bug
-				703807]
-
-2003-03-14  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclCmdAH.c (Tcl_FormatObjCmd): Only add the modifier that
-	indicates we've got a wide int when we're formatting in an integer
-	style.  Stops some libc's from going mad. [Bug 702622] Also tidied
-	whitespace.
-
-2003-03-13  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/tcl.m4 (SC_WITH_TCL): Port version number fix that was made in
-	tk instead of tcl sources.
-
-2003-03-13  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	Require autoconf 2.57 or newer, see TIP 34 for a detailed explanation
-	of why this is good. This will no doubt break the build on some
-	platforms, let the flaming begin.
-
-	* tools/configure: Regen with autoconf 2.57.
-	* tools/configure.in: Require autoconf 2.57.
-	* unix/configure: Regen with autoconf 2.57.
-	* unix/configure.in: Require autoconf 2.57.
-	Apply AC_LIBOBJ changes from patch 529884.
-	* unix/tcl.m4: Ditto.
-	* win/configure: Regen with autoconf 2.57.
-	* win/configure.in: Require autoconf 2.57.
-	Don't subst LIBOBJS since this happens by default, this avoids an
-	autoconf error.
-
-2003-03-12  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c (Tcl_EvalTokensStandard):
-	* generic/tclCmdMZ.c (Tcl_SubstObj):
-	* generic/tclCompCmds.c (TclCompileSwitchCmd):
-	* generic/tclCompExpr.c (CompileSubExpr):
-	* generic/tclCompile.c (TclSetByteCodeFromAny,TclCompileScript,
-	(TclCompileTokens,TclCompileCmdWord):
-	* generic/tclCompile.h (TclCompileScript):
-	* generic/tclExecute.c (TclCompEvalObj):
-	* generic/tclInt.h (Interp,TCL_BRACKET_TERM,TclSubstTokens):
-	* generic/tclParse.c (ParseTokens,Tcl_SubstObj,TclSubstTokens):
-	* tests/subst.test (2.4, 8.7, 8.8, 11.4, 11.5):
-	Substantial refactoring of Tcl_SubstObj to make use of the same
-	parsing and substitution procedures as normal script evaluation.
-	Tcl_SubstObj() moved to tclParse.c. New routine TclSubstTokens()
-	created in tclParse.c which implements all substantial functioning of
-	Tcl_EvalTokensStandard(). TclCompileScript() loses its "nested"
-	argument, the Tcl_Interp struct loses its termOffset field and the
-	TCL_BRACKET_TERM flag in the evalFlags field, all of which were only
-	used (indirectly) by Tcl_SubstObj(). Tests subst-8.7,8.8,11.4,11.5
-	modified to accomodate the only behavior change: reporting of parse
-	errors now takes precedence over [return] and [continue] exceptions.
-	All other behavior should remain compatible. [RFE 536831,684982] [Bug
-	685106]
-
-	* generic/tcl.h:        Removed TCL_PREFIX_IDENT and TCL_DEBUG_IDENT
-	* win/tclWinPipe.c:     from tcl.h -- they are not part of Tcl's
-	public interface.  Put them in win/tclWinPipe.c where they are used.
-
-	* generic/tclInterp.c (Tcl_InterpObjCmd):       Corrected and added
-	* tests/interp.test (interp-2.13):              test for option
-	parsing beyond objc for [interp create --]. Thanks to Marco Maggi.
-	[Bug 702383]
-
-2003-03-11  Kevin Kenny  <kennykb@users.sourceforge.net>
-
-	* win/makefile.vc: Added two missing uses of $(DBGX) so that
-	tclpip8x.dll loads without panicking on Win9x.
-
-2003-03-09  Kevin Kenny  <kennykb@users.sourceforge.net>
-
-	* generic/tclTest.c (TestChannelCmd): Removed an unused local variable
-	that caused compilation problems on some platforms.
-
-2003-03-08  Don Porter  <dgp@users.sourceforge.net>
-
-	* doc/tcltest.n:  Added missing "-body" to example. Thanks to Helmut
-	Giese. [Bug 700011]
-
-2003-03-07  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* tests/io.test:
-	* tests/ioCmd.test: Define a fcopy constraint and add it to the
-	constraint list of any test that depends on the fcopy command. This is
-	only useful to Jacl which does not support fcopy.
-
-2003-03-07  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* tests/encoding.test: Name temp files *.tcltestout instead of *.out
-	so that when they are removed later, we don't accidently toast any
-	files named *.out that the user has created in the build directory.
-
-2003-03-07  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclCmdAH.c (Tcl_FileObjCmd): Fix the setting of a file's
-	mtime and atime on 64-bit platforms. [Bug 698146]
-
-2003-03-06  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* tests/io.test: Doh! Undo accidental commenting out of a couple of
-	tests.
-
-2003-03-06  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* tests/io.test: Define a fileevent constraint and add it to the
-	constraint list of any test that depends on the fileevent command.
-	This is only useful to Jacl which does not support fileevent.
-
-2003-03-06  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* tests/io.test: Define an openpipe constraint and add it to the
-	constraint list of any test that creates a pipe using the open
-	command. This is only useful to Jacl which does not support pipes.
-
-2003-03-06  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/TclUtf.c (Tcl_UniCharNcasecmp):       Corrected failure to
-	* tests/utf.test (utf-25.*):    properly compare Unicode strings of
-	different case in a case insensitive manner.  [Bug 699042]
-
-2003-03-06  Kevin Kenny  <kennykb@users.sourceforge.net>
-
-	* generic/tclCompCmds.c (TclCompileSwitchCmd):
-	Replaced a non-portable 'bzero' with a portable 'memset'. [Bug 698442]
-
-2003-03-06  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tclIO.c (Tcl_Seek, Tcl_OutputBuffered): If there is data
-	buffered in the statePtr->curOutPtr member then set the BUFFER_READY
-	flag in Tcl_Seek. This is needed so that the next call to FlushChannel
-	will write any buffered bytes before doing the seek. The existing code
-	would set the BUFFER_READY flag inside the Tcl_OutputBuffered
-	function. This was a programming error made when Tcl_OutputBuffered
-	was originally created in CVS revision 1.35. The setting of the
-	BUFFER_READY flag should not have been included in the
-	Tcl_OutputBuffered function.
-	* generic/tclTest.c (TestChannelCmd): Use the Tcl_InputBuffered and
-	Tcl_OutputBuffered util methods to query the amount of buffered input
-	and output.
-
-2003-03-06  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tclIO.c (Tcl_Flush): Compare the nextAdded member of the
-	ChannelBuffer to the nextRemoved member to determine if any output has
-	been buffered. The previous check against the value 0 seems to have
-	just been a coding error. See other methods like Tcl_OutputBuffered
-	for examples where nextAdded is compared to nextRemoved to find the
-	number of bytes buffered.
-
-2003-03-06  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tclIO.c (Tcl_GetsObj): Check that the eol pointer has not
-	gone past the end of the string when in auto translation mode and the
-	INPUT_SAW_CR flag is set. The previous code worked because the end of
-	string value \0 was being compared to \n, this patch just skips that
-	pointless check.
-
-2003-03-06  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tclIO.c (WriteBytes, WriteChars, Tcl_GetsObj, ReadBytes):
-	Rework calls to TranslateOutputEOL to make it clear that a boolean
-	value is being returned. Add some comments in an effort to make the
-	code more clear. This patch makes no functional changes.
-
-2003-03-06  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tclIO.c (Tcl_SetChannelOption): Invoke the
-	Tcl_SetChannelBufferSize method as a result of changing the
-	-buffersize option to fconfigure. The previous implementation used
-	some inlined code that reset the buffer size to the default size
-	instead of ignoring the request as implemented in
-	Tcl_SetChannelBufferSize.
-	* tests/io.test: Update test case so that it actually checks the
-	implementation of Tcl_SetChannelBufferSize.
-
-2003-03-05  David Gravereaux  <davygrvy@pobox.com>
-
-	* win/rules.vc: updated default tcl version to 8.5.
-
-2003-03-05  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* generic/tclCompCmds.c (TclCompileSwitchCmd): First attempt at a
-	bytecode-compiled switch command. It only handles the most common case
-	of switching, but that should be enough for this to speed up a lot of
-	people's code. It is expected that the speed gains come from two
-	things: better handling of the switch itself, and integrated
-	compilation of the arms instead of embedding separate bytecode
-	sequences (i.e. better local variable handling.)
-	* tests/switch.test (switch-10.*): Tests of both uncompiled and
-	compiled switch behaviour. [Patch #644819]
-
-	* generic/tclCompile.h (TclFixupForwardJumpToHere): Additional macro
-	to make the most common kind of jump fixup a bit easier.
-
-2003-03-04  Don Porter	<dgp@users.sourceforge.net>
-
-	* README:				Bumped version number of
-	* generic/tcl.h:			Tcl to 8.5a0.
-	* library/init.tcl:
-	* mac/README:
-	* macosx/Tcl.pbproj/project.pbxproj:
-	* tests/basic.test:
-	* tools/configure.in:
-	* tools/tcl.hpj.in:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/README:
-	* win/README.binary:
-	* win/configure.in:
-	* win/makefile.bc:
-	* win/makefile.vc:
-	* win/tcl.m4:
-
-	* tools/configure:	autoconf
-	* unix/configure:
-	* win/configure:
-
-2003-03-03  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	*** 8.4.2 TAGGED FOR RELEASE ***
-
-2003-03-03  Daniel Steffen  <das@users.sourceforge.net>
-
-	Mac OS Classic specific fixes:
-	* generic/tclIOUtil.c (TclNewFSPathObj): on TCL_PLATFORM_MAC, skip
-	potential directory separator at the beginning of addStrRep.
-	* mac/tclMacChan.c (OpenFileChannel, CommonWatch): followup fixes to
-	cut and splice implementation for file channels.
-	* mac/tclMacFile.c (TclpUtime): pass native path to utime().
-	* mac/tclMacFile.c (TclpObjLink): correctly implemented creation of
-	alias files via new static proc CreateAliasFile().
-	* mac/tclMacPort.h: define S_ISLNK macro to fix stat'ing of links.
-	* mac/tclMacUtil.c (FSpLocationFromPathAlias): fix to enable stat'ing
-	of broken links.
-
-2003-03-03  Kevin Kenny  <kennykb@users.sourceforge.net>
-
-	* win/Makefile.vc: corrected bug introduced by 'g' for debug builds.
-
-2003-03-03  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/dde/pkgIndex.tcl:	dde bumped to version 1.2.1 for
-	* win/tclWinDde.c:		bundled release with Tcl 8.4.2
-
-	* library/reg/pkgIndex.tcl:	registry bumped to version 1.1.1 for
-	* win/tclWinReg.c:		bundled release with Tcl 8.4.2
-
-	* library/opt/pkgIndex.tcl:	updated package index to version 0.4.4
-
-2003-02-28  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/configure:
-	* win/configure.in: check for 'g' for debug build type, not 'd'.
-	* win/rules.vc (DBGX): correct to use 'g' for nmake win makefile to
-	match the cygwin makefile for debug builds. [Bug 635107]
-
-2003-02-28  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* doc/file.n: subcommand is 'file volumes' not 'file volume'
-
-2003-02-27  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclIOUtil.c (MakeFsPathFromRelative): removed dead code
-	check of typePtr (darley).
-
-	* tests/winTime.test: added note about PCI hardware dependency issues
-	with high performance clock.
-
-2003-02-27  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/lsearch.test (lsearch-10.7):
-	* generic/tclCmdIL.c (Tcl_LsearchObjCmd): Stopped -start option from
-	causing an option when used with an empty list. [Bug 694232]
-
-2003-02-26  Chengye Mao <chengye.geo@yahoo.com>
-
-	* win/tclWinInit.c: fixed a bug in TclpSetVariables by initializing
-	dwUserNameLen with the sizeof(szUserName) before calling GetUserName.
-	Don't know if this bug has been recorded: it caused crash in starting
-	Tcl or wish in Windows.
-
-2003-02-26  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclCmdMZ.c (TraceCommandProc): Fix mem leak when deleting a
-	command that had trace on it. [Bug 693564] (sofer)
-
-2003-02-25  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/pkgMkIndex.n:	Modified [pkg_mkIndex] to use -nocase matching
-	* library/package.tcl:	of -load patterns, to better accomodate common
-	user errors due to confusion between [package names] names and [info
-	loaded] names.
-
-2003-02-25  Andreas Kupries  <andreask@pliers.activestate.com>
-
-	* tests/pid.test: See below [Bug 678412].
-	* tests/io.test: Made more robust against spaces in paths [Bug 678400]
-
-2003-02-25  Miguel Sofer <msofer@users.sf.net>
-
-	* tests/execute.test: cleaning up testobj's at the end, to avoid
-	  leak warning by valgrind.
-
-2003-02-22  Zoran Vasiljevic  <zoran@archiwrae.com>
-
-	* generic/tclEvent.c (Tcl_FinalizeThread): Fix [Bug 571002]
-
-2003-02-21  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* tests/binary.test (binary-44.[34]):
-	* generic/tclBinary.c (ScanNumber): Fixed problem with unwanted
-	sign-bit propagation when scanning wide ints. [Bug 690774]
-
-2003-02-21  Daniel Steffen  <das@users.sourceforge.net>
-
-	* mac/tclMacChan.c (TclpCutFileChannel, TclpSpliceFileChannel):
-	Implemented missing cut and splice procs for file channels.
-
-2003-02-21  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/package.tcl (tclPkgUnknown):  Minor performance tweaks to
-	reduce the number of [file] invocations. Meant to improve startup
-	times, at least a little bit. [Patch 687906]
-
-2003-02-20  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tcl.m4:
-	* unix/tclUnixPipe.c: (macosx) use vfork() instead of fork() to create
-	new processes, as recommended by Apple (vfork can be up to 100 times
-	faster thank fork on macosx).
-	* unix/configure: regen.
-
-2003-02-20  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclEncoding.c (LoadTableEncoding):
-	* library/encoding/cp932.enc:      Correct jis round-trip encoding
-	* library/encoding/euc-jp.enc:     by adding 'R' type to .enc files.
-	* library/encoding/iso2022-jp.enc: [Patch 689341] (koboyasi, taguchi)
-	* library/encoding/jis0208.enc:
-	* library/encoding/shiftjis.enc:
-	* tests/encoding.test:
-
-	* unix/tclUnixChan.c (Tcl_MakeTcpClientChannel): add
-	MakeTcpClientChannelMode that takes actual mode flags to avoid hang on
-	OS X (may be OS X bug, but patch works x-plat). [Bug 689835] (steffen)
-
-2003-02-20  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/regsub.n: Typo fix [Bug 688943]
-
-2003-02-19  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/tclUnixThrd.c (TclpReaddir):
-	* unix/tclUnixPort.h: update to Bug 689100 patch to ensure that there
-	is a defined value of MAXNAMLEN (aka NAME_MAX in POSIX) and that we
-	have some buffer allocated.
-
-2003-02-19  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclStringObj.c: restored Tcl_SetObjLength() side-effect of
-	always invalidating unicode rep (if the obj has a string rep). Added
-	hasUnicode flag to String struct, allows decoupling of validity of
-	unicode rep from buffer size allocated to it (improves memory
-	allocation efficiency). [Bugs 686782, 671138, 635200]
-
-	* macosx/Tcl.pbproj/project.pbxproj:
-	* macosx/Makefile: reworked embedded build to no longer require
-	relinking but to use install_name_tool instead to change the
-	install_names for embedded frameworks. [Bug 644510]
-
-	* macosx/Tcl.pbproj/project.pbxproj: preserve mod dates when running
-	'make install' to build framework (avoids bogus rebuilds of dependent
-	frameworks because tcl headers appear changed).
-
-	* tests/ioCmd.test (iocmd-1.8): fix failure when system encoding is
-	utf-8: use iso8859-1 encoding explicitly.
-
-2003-02-18  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompile.c (TclCompileExprWords): remove unused variable
-	"range" [Bug 664743]
-	* generic/tclExecute.c (ExprSrandFunc): remove unused variable
-	"result" [Bug 664743]
-	* generic/tclStringObj.c (UpdateStringOfString): remove unused
-	variable "length" [Bug 664751]
-	* tests/execute.test (execute-7.30): fix for [Bug 664775]
-
-2003-02-18  Andreas Kupries  <andreask@activestate.com>
-
-	* unix/tcl.m4: [Bug #651811] Added definition of _XOPEN_SOURCE and
-	linkage of 'xnet' library to HP 11 branch. This kills a lot of
-	socket-related failures in the testsuite when Tcl was compiled in 64
-	bit mode (both PA-RISC 2.0W, and IA 64).
-
-	* unix/configure: Regenerated.
-
-2003-02-18  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclIO.c (HaveVersion): correctly decl static
-
-	* unix/tclUnixThrd.c (TclpReaddir): reduce size of name string in tsd
-	to NAME_MAX instead of PATH_MAX. [Bug 689100] (waters)
-
-2003-02-18  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure: Regen.
-	* unix/tcl.m4 (SC_ENABLE_THREADS): Make sure -lpthread gets passed on
-	the link line when checking for the pthread_attr_setstacksize symbol.
-
-2003-02-18  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclTest.c: cleanup of new 'simplefs' test code, and better
-	documentation.
-
-2003-02-17  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclBasic.c (TclRenameCommand): fixing error in previous
-	commit.
-
-2003-02-17  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclExecute.c (TclExecuteByteCode INST_STR_MATCH):
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd STR_MATCH):
-	* generic/tclUtf.c (TclUniCharMatch):
-	* generic/tclInt.decls:  add private TclUniCharMatch function that
-	* generic/tclIntDecls.h: does string match on counted unicode
-	* generic/tclStubInit.c: strings. Tcl_UniCharCaseMatch has the failing
-	* tests/string.test:     that it can't handle strings or patterns with
-	* tests/stringComp.test: embedded NULLs. Added tests that actually try
-	strings/pats with NULLs. TclUniCharMatch should be TIPed and made
-	public in the next minor version rev.
-
-2003-02-17  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclBasic.c (TclRenameCommand): 'oldFullName' object was not
-	being freed on all function exits, causing a memory leak. [Bug 684756]
-
-2003-02-17  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tclIO.c (Tcl_GetsObj): Minor change so that eol is only
-	assigned at the top of the TCL_TRANSLATE_AUTO case block. The other
-	cases assign eol so this does not change any functionality.
-
-2003-02-17  Kevin Kenny  <kennykb@users.sourceforge.net>
-
-	* tests/notify.test: Removed Windows line terminators. [Bug 687913].
-
-2003-02-15  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclBasic.c (Tcl_EvalEx):
-	* generic/tclCompExpr.c (CompileSubExpr):
-	* generic/tclCompile.c (TclCompileScript):
-	* generic/tclParse.c (Tcl_ParseCommand, ParseTokens):
-	* generic/tclParseExpr.c (ParsePrimaryExpr):
-	* tests/basic.test (47.1):
-	* tests/main.test (3.4):
-	* tests/misc.test (1.2):
-	* tests/parse.test (6.18):
-	* tests/parseExpr.test (15.35):
-	* tests/subst.test (8.6): Don Porter's fix for bad parsing of nested
-	scripts. [Bug 681841]
-
-2003-02-15  Kevin Kenny  <kennykb@users.sourceforge.net>
-
-	* tests/notify.test (new-file):
-	* generic/tclTest.c (TclTest_Init, EventtestObjCmd, EventtestProc,
-	(EventTestDeleteProc):
-	* generic/tclNotify.c (Tcl_DeleteEvents): Fixed Tcl_DeleteEvents not
-	to get a pointer smash when deleting the last event in the queue.
-	Added test code in 'tcltest' and a new file of test cases
-	'notify.test' to exercise this functionality; several of the new test
-	cases fail for the original code and pass for the corrected code. [Bug
-	673714]
-
-	* unix/tclUnixTest.c (TestfilehandlerCmd): Corrected a couple of typos
-	in error messages. [Bug 596027]
-
-2003-02-14  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* README:		Bumped to version 8.4.2.
-	* generic/tcl.h:
-	* tools/tcl.wse.in:
-	* unix/configure:
-	* unix/configure.in:
-	* unix/tcl.m4:
-	* unix/tcl.spec:
-	* win/README.binary:
-	* win/configure:
-	* win/configure.in:
-	* macosx/Tcl.pbproj/project.pbxproj:
-
-	* generic/tclStringObj.c (Tcl_GetCharLength): perf tweak
-
-	* unix/tcl.m4: correct HP-UX ia64 --enable-64bit build flags
-
-2003-02-14  Kevin Kenny  <kennykb@users.sourceforge.net>
-
-	* win/tclWinTime.c: Added code to test and compensate for forward
-	leaps of the performance counter. See the MSDN Knowledge Base article
-	Q274323 for the hardware problem that makes this necessary on certain
-	machines.
-	* tests/winTime.test: Revised winTime-2.1 - it had a tolerance of
-	thousands of seconds, rather than milliseconds. (What's six orders of
-	magnitude among friends?) Both the above changes are triggered by a
-	problem reported at:
-	http://aspn.activestate.com/ASPN/Mail/Message/ActiveTcl/1536811
-	although the developers find it difficult to believe that it accounts
-	for the observed behavior and suspect a fault in the RTC chip.
-
-2003-02-13  Kevin Kenny  <kennykb@users.sourceforge.net>
-
-	* win/tclWinInit.c: Added conversion from the system encoding to
-	tcl_platform(user), so that it works with non-ASCII7 user names. [Bug
-	685926]
-
-	* doc/tclsh.1: Added language to describe the handling of the
-	end-of-file character \u001a embedded in a script file. [Bug 685485]
-
-2003-02-11  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* tests/fileName.test:
-	* unix/tclUnixFile.c: fix for [Bug 685445] when using 'glob -l' on
-	broken symbolic links. Added two new tests for this bug.
-
-2003-02-11  Kevin Kenny  <kennykb@users.sourceforge.net>
-
-	* tests/http.test: Corrected a problem where http-4.14 would fail when
-	run in an environment with a proxy server. Replaced references to
-	scriptics.com by tcl.tk.
-
-2003-02-11  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tests/lsearch.test:
-	* generic/tclCmdIL.c (Tcl_LsearchObjCmd): protect against the case
-	that lsearch -regepx list and pattern objects are equal.
-
-	* tests/stringObj.test:
-	* generic/tclStringObj.c (Tcl_GetCharLength): correct ascii char opt
-	of 2002-11-11 to not stop early on \x00. [Bug 684699]
-
-	* tests.parse.test: remove excess EOF whitespace
-
-	* generic/tclParse.c (CommandComplete): more paranoid check to break
-	on (p >= end) instead of just (p == end).
-
-2003-02-11  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclParse.c (CommandComplete):
-	* tests/parse.test: fix for [Bug 684744], by Don Porter.
-
-2003-02-11  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclIOUtil.c (Tcl_FSJoinPath, Tcl_FSGetNormalizedPath):
-	(UpdateStringOfFsPath): revert the cwdLen == 0 check and instead
-	follow a different code path in Tcl_FSJoinPath.
-	(Tcl_FSConvertToPathType, Tcl_FSGetNormalizedPath):
-	(Tcl_FSGetFileSystemForPath): Update string rep of path objects before
-	freeing the internal object. (darley)
-
-	* tests/fileSystem.test: added test 8.3
-	* generic/tclIOUtil.c (Tcl_FSGetNormalizedPath):
-	(UpdateStringOfFsPath): handle the cwdLen == 0 case
-
-	* unix/tclUnixFile.c (TclpMatchInDirectory): simplify the hidden file
-	match check.
-
-2003-02-10  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/configure:
-	* win/configure.in: Generate error when attempting to build under
-	Cygwin. The Cygwin port of Tcl/Tk does not build and people are filing
-	bug reports under the mistaken impression that someone is actually
-	maintaining the Cygwin port. A post to comp.lang.tcl asking someone to
-	volunteer as an area maintainer has generated no results. Closing bugs
-	680840, 630199, and 634772 and marking as "Won't fix".
-
-2003-02-10  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/append.n: Return value was not documented. [Bug 683188]
-
-2003-02-10  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* doc/FileSystem.3:
-	* generic/tclIOUtil.c:
-	* generic/tclInt.h:
-	* tests/fileSystem.test:
-	* unix/tclUnixFCmd.c:
-	* unix/tclUnixFile.c:
-	* win/tclWinFile.c: further filesystem optimization, applying [Patch
-	682500]. In particular, these code examples are faster now:
-	    foreach f $flist { if {[file exists $f]} {file stat $f arr;...}}
-	    foreach f [glob -dir $dir *] { # action and/or recursion on $f }
-	    cd $dir
-	    foreach f [glob *] { # action and/or recursion on $f }
-	    cd ..
-
-	* generic/tclTest.c: Fix for [Bug 683181] where test suite left files
-	in 'tmp'.
-
-2003-02-08  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* library/safe.tcl: code cleanup of eval and string comp use.
-
-2003-02-07  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* win/tclWinFCmd.c: cleanup long lines
-	* win/tclWinFile.c: sped up pure 'glob' by a factor of 2.5
-	('foreach f [glob *] { file exists $f }' is still slow)
-	* tests/fileSystem.text:
-	* tests/fileName.test: added new tests to ensure correct behaviour in
-	optimized filesystem code.
-
-2003-02-07  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclTest.c:
-	* tests/fileSystem.text: fixed test 7.2 to avoid a possible crash, and
-	not change the pwd.
-
-	* tests/http.text: added comment to test 4.15, that it may fail if you
-	use a proxy server.
-
-2003-02-06  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tclCompCmds.c (TclCompileIncrCmd):
-	* tests/incr.test: Don't include the text "(increment expression)" in
-	the errorInfo generated by the compiled version of the incr command
-	since it does not match the message generated by the non-compiled
-	version of incr. It is also not possible to match this error output
-	under Jacl, which does not support a compiler.
-
-2003-02-06  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tclExecute.c (TclExecuteByteCode): When an error is
-	encountered reading the increment value during a compiled call to
-	incr, add a "(reading increment)" error string to the errorInfo
-	variable. This makes the errorInfo variable set by the compiled incr
-	command match the value set by the non-compiled version.
-	* tests/incr-old.test: Change errorInfo result for the compiled incr
-	command case to match the modified implementation.
-	* tests/incr.test: Add tests to make sure the compiled and
-	non-compiled errorInfo messages are the same.
-
-2003-02-06  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl:  Filename arguments to [outputChannel]
-	and [errorChannel] (also -outfile and -errfile) were [open]ed but
-	never [closed]. Also, [cleanupTests] could remove output or error
-	files. [Bug 676978].
-	* library/tcltest/pkgIndex.tcl: Bumped to version 2.2.2.
-
-2003-02-05  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* tests/interp.test:
-	* tests/set-old.test: Run test cases that depend on hash order through
-	lsort so that the tests also pass under Jacl. Does not change test
-	results under Tcl.
-
-2003-02-04  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclIOUtil.c:
-	* generic/tclEvent.c:
-	* generic/tclInt.h:
-	* mac/tclMacFCmd.c:
-	* unix/tclUnixFCmd.c:
-	* win/tclWin32Dll.c:
-	* win/tclWinFCmd.c:
-	* win/tclWinInit.c:
-	* win/tclWinInt.h:
-	* tests/fileSystem.test: fix to finalization/unloading/encoding issues
-	to make filesystem much less dependent on encodings for its cleanup,
-	and therefore allow it to be finalized later in the exit process. This
-	fixes fileSystem.test-7.1. Also fixed one more bug in setting of
-	modification dates of files which have undergone cross-platform
-	copies. [Patch 676271]
-
-	* tests/basic.test:
-	* tests/exec.test:
-	* tests/fileName.test:
-	* tests/io.test: fixed some test failures when tests are run from a
-	directory containing spaces.
-
-	* tests/fileSystem.test:
-	* generic/tclTest.c: added regression test for the modification date
-	setting of cross-platform file copies.
-
-2003-02-03  Kevin Kenny  <kennykb@users.sourceforge.net>
-
-	* generic/tclBasic.c: Changed [trace add command] so that 'rename'
-	callbacks get fully qualified names of the command. [Bug 651271].
-	***POTENTIAL INCOMPATIBILITY***
-	* tests/trace.test: Modified the test cases for [trace add command] to
-	expect fully qualified names on the 'rename' callbacks. Added a case
-	for renaming a proc within a namespace.
-	* doc/trace.n: Added language about use of fully qualified names in
-	trace callbacks.
-
-2003-02-01  Kevin Kenny  <kennykb@users.sourceforge.net>
-
-	* generic/tclCompCmds.c: Removed an unused variable that caused
-	compiler warnings on SGI. [Bug 664379]
-
-	* generic/tclLoad.c: Changed the code so that if Tcl_StaticPackage is
-	called to report the same package as being loaded in two interps, it
-	shows up in [info loaded {}] in both of them (previously, it didn't
-	appear in the static package list in the second).
-
-	* tests/load.test Added regression test for the above bug. [Bug
-	670042]
-
-	* generic/tclClock.c: Fixed a bug that incorrectly allowed [clock
-	clicks {}] and [clock clicks -] to be accepted as if they were [clock
-	clicks -milliseconds].
-
-	* tests/clock.test: Added regression tests for the above bug. [Bug
-	675356]
-
-	* tests/unixNotfy.test: Added cleanup of working files. [Bug 675609]
-
-	* doc/Tcl.n: Added headings to the eleven paragraphs, to improve
-	formatting in the tools that attempt to extract tables of contents
-	from the manual pages. [Bug 627455]
-
-	* generic/tclClock.c: Expanded mutex protection around the setting of
-	env(TZ) and the thread-unsafe call to tzset(). [Bug 656660]
-
-2003-01-31  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/tcltest.test: Cleaned up management of file/directory
-	creation/deletion to improve "-debug 1" output. [Bug 675614]
-	The utility [slave] command failed to properly [list]-quote a
-	constructed [open] command, causing failure when the pathname
-	contained whitespace. [Bug 678415]
-
-	* tests/main.test: Stopped main.test from deleting existing file. Test
-	suite should not delete files that already exist. [Bug 675660]
-
-2003-01-28  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/main.test: Constrain tests that do not work on Windows. [Bug
-	674387]
-
-2003-01-28  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclIOUtil.c: fix to setting modification date in
-	TclCrossFilesystemCopy. Also added 'panic' in
-	Tcl_FSGetFileSystemForPath under illegal calling circumstances which
-	lead to hard-to-track-down bugs.
-
-	* generic/tclTest.c: added test suite code to allow exercising a
-	vfs-crash-on-exit bug in Tcl's finalization caused by the encodings
-	being cleaned up before unloading occurs.
-	* tests/fileSystem.test: added new 'knownBug' test 7.1 to demonstrate
-	the crash on exit.
-
-2003-01-28  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tcl.h: Add TCL_PREFIX_IDENT and TCL_DEBUG_IDENT, used only
-	by TclpCreateProcess.
-	* unix/Makefile.in: Define TCL_DBGX.
-	* win/Makefile.in: Define TCL_DBGX.
-	* win/tclWinPipe.c (TclpCreateProcess): Check that the Tcl pipe dll
-	actually exists in the Tcl bin directory and panic if it is not found.
-	Incorporate TCL_DBGX into the Tcl pipe dll name. This fixes a really
-	mysterious error that would show up when exec'ing a 16 bit application
-	under Win95 or Win98 when Tcl was compiled with symbols. The error
-	seemed to indicate that the executable could not be found, but it was
-	actually the Tcl pipe dll that could not be found.
-
-2003-01-26  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/README: Update msys+mingw URL to release 6. This version bundles
-	gcc 3.
-
-2003-01-26  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/configure: Regen.
-	* win/configure.in: Add test that checks to see if the compiler can
-	cast to a union type.
-	* win/tclWinTime.c: Squelch compiler warning about union initializer
-	by casting to union type when compiling with gcc.
-
-2003-01-25  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tclIO.c (Tcl_CutChannel, Tcl_SpliceChannel): Invoke
-	TclpCutFileChannel and TclpSpliceFileChannel.
-	* generic/tclInt.h: Declare TclpCutFileChannel and
-	TclpSpliceFileChannel.
-	* unix/tclUnixChan.c (FileCloseProc, TclpOpenFileChannel,
-	(Tcl_MakeFileChannel, TclpCutFileChannel, TclpSpliceFileChannel):
-	Implement thread load data cut and splice for file channels. This
-	avoids an invalid memory ref when compiled with -DDEPRECATED.
-	* win/tclWinChan.c (FileCloseProc, TclpCutFileChannel,
-	(TclpSpliceFileChannel): Implement thread load data cut and splice for
-	file channels. This avoids an invalid memory ref that was showing up
-	in the thread extension.
-
-2003-01-25  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/tclWin32Dll.c (TclpCheckStackSpace, squelch_warnings):
-	* win/tclWinChan.c (Tcl_MakeFileChannel, squelch_warnings):
-	* win/tclWinFCmd.c (DoRenameFile, DoCopyFile, squelch_warnings):
-	Re-implement inline ASM SEH handlers for gcc. The esp and ebp
-	registers are now saved on the stack instead of in global variables so
-	that the code is thread safe. Add additional checks when TCL_MEM_DEBUG
-	is defined to be sure the values were recovered from the stack
-	properly. Remove squelch_warnings functions and add a dummy call in
-	the handler methods to squelch compiler warnings.
-
-2003-01-25  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/configure:
-	* win/configure.in: Define HAVE_ALLOCA_GCC_INLINE when we detect that
-	no alloca function is found in malloc.h and we are compiling with GCC.
-	Remove HAVE_NO_ALLOC_DECL define.
-	* win/tclWin32Dll.c (TclpCheckStackSpace): Don't define alloca as a
-	cdecl function. Doing this caused a tricky runtime bug because the
-	_alloca function expects the size argument to be passed in a register
-	and not on the stack. To fix this problem, we use inline ASM when
-	compiling with gcc to invoke _alloca with the size argument loaded
-	into a register.
-
-2003-01-24  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/tclWinDde.c (Dde_Init): clarified use of tsdPtr.
-	(DdeServerProc): better refcount handling of returnPackagePtr.
-
-	* generic/tclEvent.c (Tcl_Finalize): revert finalize change on
-	2002-12-04 to correct the issue with extensions that have TSD needing
-	to finalize that before they are unloaded. This issue needs further
-	clarification.
-
-	* tests/unixFCmd.test: only do groups check on unix
-
-2003-01-24  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclStringObj.c: proper fixes for Tcl_SetObjLength and
-	Tcl_AttemptSetObjectLength dealing with string objects with both
-	pure-unicode and normal internal representations. Previous fix didn't
-	handle all cases correctly.
-	* generic/tclIO.c: Add 'Tcl_GetString()' to ensure the object has a
-	valid 'objPtr->bytes' field before manipulating it directly.
-
-	This fixes [Bug 635200] and [Bug 671138], but may reduce performance
-	of Unicode string handling in some cases. A further patch will be
-	applied to address this, once the code is known to be correct.
-
-2003-01-24  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/configure: Regen.
-	* win/configure.in: Add test to see if alloca is undefined in
-	malloc.h.
-	* win/tclWin32Dll.c (TclpCheckStackSpace): Rework the SEH exception
-	handler logic to avoid using the stack since alloca will modify the
-	stack. This was causing a nasty bug that would set the exception
-	handler to 0 because it tried to pop the previous exception handler
-	off the top of the stack.
-
-2003-01-23  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
-
-	* doc/lset.n: Fixed fault in return values from lset in documentation
-	examples [SF Bug #658463] and tidied up a bit at the same time.
-
-2003-01-21  Joe English  <jenglish@users.sourceforge.net>
-
-	* doc/namespace.n (namespace inscope): Clarified documentation
-	[Patch 670110]
-
-2003-01-21  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/configure: Regen.
-	* win/tcl.m4 (SC_CONFIG_CFLAGS): Set SHLIB_SUFFIX so that
-	TCL_SHLIB_SUFFIX will be set to a useful value in the generated
-	tclConfig.sh. Set SHLIB_LD_LIBS to "" or '${LIBS}' based on the
-	--enable-shared flag. This matches the UNIX implementation.
-
-2003-01-18  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclCkalloc.c: change %ud to %u as appropriate.
-
-2003-01-17  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/tclWinDde.c (DdeServerProc): Deallocate the Tcl_Obj returned by
-	ExecuteRemoteObject if it was not saved in a connection object.
-
-2003-01-17  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tcl.h: Revert earlier change that defined TCL_WIDE_INT_TYPE
-	as long long and TCL_LL_MODIFIER as L when compiling with mingw. This
-	change ended up causing some test case failures when compiling with
-	mingw.
-	* generic/tclObj.c (UpdateStringOfWideInt): Describe the warning
-	generated by mingw and why it needs to be ignored so that someone is
-	not tempted to "fix" this problem again in the future.
-
-2003-01-16  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclStringObj.c: Tcl_SetObjLength fix for when the object has
-	a unicode string rep. [Bug 635200]
-	* tests/stringObj.test: removed 'knownBug' constraint from test 14.1
-	now that this bug is fixed.
-
-	* generic/tclInt.h:
-	* generic/tclBasic.c:
-	* generic/tclCmdMZ.z:
-	* tests/trace.test: execution and command tracing bug fixes and
-	cleanup. In particular fixed [Bug 655645], [Bug 615043], [Bug 571385]
-	  - fixed some subtle cleanup problems with tracing. This required
-	    replacing Tcl_Preserve/Tcl_Release with a more robust refCount
-	    approach. Solves at least one known crash caused by memory
-	    corruption.
-	  - fixed some confusion in the code between new style traces (Tcl
-	    8.4) and the very limited 'Tcl_CreateTrace' which existed before.
-	  - made behaviour consistent with documentation (several tests even
-	    contradicted the documentation before).
-	  - fixed some minor error message details
-	  - added a number of new tests
-
-2003-01-16  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/tclWinSerial.c (SerialOutputProc): add casts for bytesWritten to
-	allow strict compilation (no warnings).
-
-	* tests/winDde.test:
-	* win/tclWinDde.c (Tcl_DdeObjCmd): Prevent crash when empty service
-	name is passed to 'dde eval' and goto errorNoResult in request and
-	poke error cases to free up any allocated data.
-
-2003-01-16  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/tclWin32Dll.c (squelch_warnings): Squelch compiler warnings from
-	SEH ASM code.
-	* win/tclWinChan.c (squelch_warnings): Squelch compiler warnings from
-	SEH ASM code.
-	* win/tclWinDde.c: Add casts to avoid compiler warnings. Pass pointer
-	to DWORD instead of int to avoid compiler warnings.
-	* win/tclWinFCmd.c (squelch_warnings): Add casts and fixup decls to
-	avoid compiler warnings. Squelch compiler warnings from SEH ASM code.
-	* win/tclWinFile.c: Add casts and fixup decls to avoid compiler
-	warnings. Remove unused variable.
-	* win/tclWinNotify.c: Declare as DWORD instead of int to avoid
-	compiler warning.
-	* win/tclWinReg.c: Add casts to avoid compiler warning. Fix assignment
-	in if expression bug.
-	* win/tclWinSerial.c: Add casts to avoid compiler warnings. Remove
-	unused variable.
-	* win/tclWinSock.c: Add casts and fixup decls to avoid compiler
-	warnings.
-
-2003-01-14  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclClock.c (FormatClock): corrected typo that incorrectly
-	conditionally defined savedTZEnv and savedTimeZone.
-
-2003-01-13  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	Fix mingw build problems and compiler warnings.
-
-	* generic/tcl.h: Add if defined(__MINGW32__) check to code that sets
-	the TCL_WIDE_INT_TYPE and TCL_LL_MODIFIER.
-	* generic/tclClock.c (FormatClock): Don't define savedTimeZone and
-	savedTZEnv if we are not going to use them.
-	* generic/tclEnv.c: Add cast to avoid warning.
-	* win/tclWinChan.c: Use DWORD instead of int to avoid compiler warning
-	* win/tclWinThrd.c: Only define allocLock, allocLockPtr, and dataKey
-	when TCL_THREADS is defined. This avoid a compiler warning about
-	unused variables.
-
-2003-01-12  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/README: Update msys + mingw URL, the new release includes the
-	released 1.0.8 version of msys which includes a number of bug fixes.
-
-2003-01-12  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/configure: Regen.
-	* win/tcl.m4 (SC_CONFIG_CFLAGS): Pull in addition of shell32.lib to
-	LIBS_GUI that was added to the Tk tcl.m4 but never made it back into
-	the Tcl version.
-
-2003-01-12  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tcl.h: Skip Tcl's define of CHAR, SHORT, and LONG when
-	HAVE_WINNT_IGNORE_VOID is defined. This avoids a bunch of compiler
-	warnings when building with Cygwin or Mingw.
-	* win/configure: Regen.
-	* win/configure.in: Define HAVE_WINNT_IGNORE_VOID when we detect a
-	winnt.h that still defines CHAR, SHORT, and LONG when VOID has already
-	been defined.
-	* win/tcl.m4 (SC_LOAD_TCLCONFIG): Subst the TCL_DEFS loaded from
-	tclConfig.sh so that Tcl defines can make it into the Tk Makefile.
-
-2003-01-12  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/configure: Regen.
-	* win/configure.in: Check for typedefs like LPFN_ACCEPT in winsock2.h
-	and define HAVE_NO_LPFN_DECLS if not found.
-	* win/tclWinSock.c: Define LPFN_* typedefs if HAVE_NO_LPFN_DECLS is
-	defined. This fixes the build under Mingw and Cygwin, it was broken by
-	the changes made on 2002-11-26.
-
-2003-01-10  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclIOUtil.c:
-	* win/tclWinInt.h:
-	* win/tclWinInit.c: fix to new WinTcl crash on exit with vfs,
-	introduced on 2002-12-06. Encodings must be cleaned up after the
-	filesystem.
-
-	* win/makefile.vc: fix to minor VC++ 5.2 syntax problem
-
-2003-01-09  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCompCmds.c (TclCompileReturnCmd):  Corrected off-by-one
-	problem with recent commit. [Bug 633204]
-
-2003-01-09  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFileName.c: remove unused variable 'macSpecialCase'
-	[Bug 664749]
-
-	* generic/tclIOUtil.c:
-	* generic/tclInt.h:
-	* unix/tclUnixFile.c:
-	* mac/tclMacFile.c:
-	* win/tclWinFile.c:
-	* win/tclWinInt.h:
-	* win/tclWin32Dll.c:
-	* tests/cmdAH.test: fix to non-ascii chars in paths when setting mtime
-	and atime through 'file (a|m)time $path $time'. [Bug 634151]
-
-2003-01-08  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c (TclExprFloatError):  Use the IS_NAN macro for
-	greater clarity of code.
-
-2003-01-07  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCompCmds.c (TclCompileReturnCmd):
-	* tests/compile.test:	Corrects failure of bytecompiled [catch
-	{return}] to have result TCL_RETURN (not TCL_OK) [Bug 633204]. This
-	patch is a workaround for 8.4.X. A new opcode INST_RETURN is a better
-	long term solution for 8.5 and later.
-
-2003-01-04  David Gravereaux  <davygrvy@pobox.com>
-
-	* win/makefile.vc:
-	* win/rules.vc:  Fixed INSTALLDIR macro problem that blanked itself by
-	accident causing the install target to put the tree at the root of the
-	drive built on. Whoops..
-
-	Renamed the 'linkexten' option to be 'staticpkg'. Added 'thrdalloc' to
-	allow the switching _on_ of the thread allocator. Under testing, I
-	found it not to be benificial under windows for the purpose of the
-	application I was using it for. It was more important for this app
-	that resources for tcl threads be returned to the system rather than
-	saved/moved to the global recycler. Be extra clean or extra fast for
-	the default threaded build? Let's move to clean and allow it to be
-	switched on for users who find it benificial for their use of threads.
-
-	******************************************************************
-	*** CHANGELOG ENTRIES FOR 2002 IN "ChangeLog.2002"             ***
-	*** CHANGELOG ENTRIES FOR 2001 IN "ChangeLog.2001"             ***
-	*** CHANGELOG ENTRIES FOR 2000 IN "ChangeLog.2000"             ***
-	*** CHANGELOG ENTRIES FOR 1999 AND EARLIER IN "ChangeLog.1999" ***
-	******************************************************************
diff --git a/ChangeLog.2004 b/ChangeLog.2004
deleted file mode 100644
index daf124f..0000000
--- a/ChangeLog.2004
+++ /dev/null
@@ -1,4619 +0,0 @@
-2004-12-29  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* win/tcl.m4, win/configure: update MSVC CFLAGS_OPT to -O2, remove -Gs
-	(included in -O2) and -GD (outdated). Use "link -lib" instead of "lib"
-	binary and remove -YX for MSVC7 portability. Add -fomit-frame-pointer
-	for gcc OPT compiles. [Bug 1092952, 1091967] Align LIBS_GUI with Tk
-	head needs.
-
-2004-12-29  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclDate.c: Regen
-	* generic/tclGetDate.y (TclDatelex): Fixed a problem where a
-	four-digit group with >=2 leading zeroes appeared to be a two-digit
-	group, leading to misinterpreting the time 0012 as 1200. [Bug 1090413]
-	* library/clock.tcl: Added code to interpret correctly months outside
-	the range 01-12 as reduced modulo 12 with a corresponding adjustment
-	to the year. [Bug 1092789]
-	* tests/clock.test: Added regression test cases for the above two bugs
-	* unix/Makefile.in: Added --no-lines to the 'bison' command line to
-	* win/Makefile.in: help constrain the number of diffs in a cvs checkin
-
-2004-12-24  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompile.c:
-	* generic/tclCompile.h:
-	* generic/tclExecute.c:
-	* generic/tclInt.h:
-	* generic/tclLiteral.c:
-	* generic/tclProc.c:
-	Avoid sharing cmdName literals accross namespaces, and generalise
-	usage of the TclRegisterNewLiteral macro. [Patch 1090905]
-
-2004-12-20  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompile.c: moved TclInitCompiledLocals to tclProc.c
-	* generic/tclProc.c: new static InitCompiledLocals to allow for a
-	single pass over the proc's arguments at proc load time (instead of
-	two as previously). TclObjInterpProc() now allocates the
-	compiledLocals on the tcl execution stack, using the new
-	TclStackAlloc/Free functions.
-
-2004-12-16  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclInterp.c (Tcl_LimitSetTime, TimeLimitCallback):
-	(TclLimitRemoveAllHandlers, TclInitLimitSupport): Set a timer event to
-	trigger when the time limit runs out. All the time limit actually does
-	is check to see if the time limit has been exceeded, but this is
-	enough to fix [Bug 1085023].
-	* generic/tclInt.h (struct Interp): Added a field to hold the token
-	for the timer event handler associated with the current time limit.
-	* generic/tclEvent.c (Tcl_UpdateObjCmd, Tcl_VwaitObjCmd): Add error
-	message when limit exceeded.
-	* tests/interp.test (interp-34.[89]): Check that time limits handle
-	the two cases reported in [Bug 1085023]
-
-	* generic/tclTimer.c (TclCreateAbsoluteTimerHandler): New internal
-	function that allows setting a timer handler that will be triggered at
-	(or after) a specific time instead of at some number of milliseconds
-	in the future. This is a candidate for future exposure via a TIP.
-
-2004-12-15  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclBasic.c:
-	* generic/tclExecute.c:
-	* generic/tclInt.decls:
-	* generic/tclIntDecls.h:
-	* generic/tclNamesp.c:
-	* generic/tclProc.c:
-	* generic/tclStubInit.c:
-	* generic/tclTest.c: Added two new functions to allocate memory from
-	the execution stack (TclStackAlloc, TclStackFree). Added functions
-	TclPushStackFrame and TclPopStackFrame that do the work of
-	Tcl_PushCallFrame and Tcl_PopCallFrame, but using frames allocated in
-	the execution stack - i.e., heap instead of C-stack. The core uses
-	these two new functions exclusively; the old ones remain for backwards
-	compat, as at least two popular extensions (itcl, xotcl) are known to
-	use them.
-
-2004-12-14  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCmdIL.c:
-	* generic/tclInt.h:
-	* generic/tclProc.c:
-	* generic/tclVar.c: changing the isProcCallFrame field of the
-	CallFrame struct from a 0/1 field to flags. Should be perfectly
-	backwards compatible.
-
-2004-12-14  Don Porter	<dgp@users.sourceforge.net>
-
-	* unix/configure.in: Added special processing to remove "$U" from
-	libraries in the LIBOBJS value. This is an auto-make-ism we need to
-	avoid. [Bug 1081541]
-
-	* unix/configure: autoconf-2.57
-
-2004-12-13  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tcl.h: Restored extern "C" guards so that C++ code sees
-	function pointer typedef linkage consistent with earlier Tcl releases.
-	[Bug 1082349]
-
-	* generic/tclEncoding.c: Plugged some memory leaks. Thanks to Rolf Ade
-	* generic/tclUtil.c:	 for reports and testing [Bug 1083082]
-
-2004-12-13  Kevin B. Kenny  <kennykb@acm.org>
-
-	* doc/clock.n: Clarify that the [clock scan] command does not accept
-	the full range of ISO8601 point-in-time formats. [Bug 1075433]
-
-2004-12-12  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclVar.c (TclArrayObjCmd - ARRAY_NAMES): leaking an object
-	[Bug 1084111] - thanks to Rolf Ade.
-
-2004-12-12  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclObj.c (TclSetCmdNameObj): special handling for fully
-	qualified command names (as in fix [Patch 456668]).
-
-2004-12-11  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclInt.h:
-	* generic/tclNamesp.c: converting the static function
-	GetNamespaceFromObj() to MODULE_SCOPE TclGetNamespaceFromObj().
-
-2004-12-10  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tools/tcl.wse.in, unix/tcl.spec, win/README.binary, README:
-	* win/configure.in, unix/configure.in, generic/tcl.h:
-	Bumped version number to 8.5a3 to distinguish HEAD of CVS development
-	from the recent 8.5a2 release.
-
-2004-12-10  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompile.c (TclInitCompiledLocals):
-	* generic/tclCompile.h:
-	* generic/tclInt.h:
-	* generic/tclProc.c (TclObjInterpProc, TclCreateProc): optimised
-	loops that initialise a proc's arguments and compiled local
-	variables, removing tests from inner loops.
-
-2004-12-10  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclInt.h: Move ensemble API decls here from tclNamesp.c
-
-2004-12-09  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclNamesp.c (TclMakeEnsembleCmd, TclSetEnsemble*)
-	(TclSetEnsemble*, TclFindEnsemble): Build an internal API for creating
-	and manipulating ensembles; they can be deleted using the normal
-	command-deletion API.
-
-	* doc/Async.3: Reword for better grammar, better nroff and get the
-	flag name right. (Reported by David Welton.)
-
-2004-12-07  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/unixInit.test (2.1-4): Added constraints so that when a value
-	of TCL_LIBRARY is required for process initialization, we skip the
-	tests that mess with that value.
-
-2004-12-07  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	*** 8.5a2 TAGGED FOR RELEASE ***
-
-	* unix/Makefile.in: add library/{tzdata,msgs} to dist target (kbk)
-
-	* doc/foreach.n: Adjust tabs to be friendlier to some HTML
-	converters. [Bug 1078760]
-
-2004-12-06  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* unix/tclUnixNotfy.c (NotifierThreadProc): init numFdBits
-	[Bug 1079286]
-
-	* doc/error.n, doc/SaveResult.3, doc/Thread.3: minor nroff typos
-
-2004-12-06  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/safe.test:	Trim auto_path to improve performance [1080039]
-
-	* tests/msgcat.test:	makeFile/removeFile cleanup [1079117]
-
-2004-12-04  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclEncoding.c:	Different fix for [Bug 1077005].
-	* generic/tclEvent.c:	Broke apart TclpSetInitialEncodings() on
-	* generic/tclInt.h:	Windows into TclpSetInterfaces(), that is
-	* unix/tclUnixInit.c:	fundamentally essential, and the initialization
-	* win/tclWinInit.c:	of the system encoding, which is not. Made
-	the TclpSetInterfaces call part of TclInitSubsystems so it cannot be
-	overlooked.
-
-2004-12-03  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* changes: updated for 8.5a2 release
-
-2004-12-02  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclUtil.c (TclSetProcessGlobalValue): Handle the case where
-	a ProcessGlobalValue might be assigned to itself.
-
-	* generic/tclEncoding.c (MakeFileMap): Correct refcounting errors
-	managing values returned by TclPathPart (with refCount of 1!) that led
-	to a memory leak. [Bug 1077474].
-
-2004-12-02  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclPathObj.c:  fix and new tests for [Bug 1074671] to ensure
-	* tests/fileSystem.test: tilde paths are not returned specially by
-	'glob'.
-
-2004-12-02  Kevin B. Kenny  <kennykb@acm.org>
-
-	* win/Makefile.in: Added a 'sed' in the setting of ROOT_DIR_NATIVE to
-	compensate for a bug in cygpath (at least version 1.36) that leaves a
-	trailing backslash on the end of the converted path.
-
-2004-12-02  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclInterp.c (Alias,Target,Master): Rewrote these so that the
-	aliases that refer to an interpreter are stored in a list and not a
-	hashtable (which was only ever a convenience, and forced the use of a
-	global mutex to generate keys!) [FRQ 1077210]
-	* generic/tclNamesp.c (numNsCreated): Moved into thread-local storage
-	to remove a global mutex. [FRQ 1077210]
-
-2004-12-01  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclUtil.c (TclGetProcessGlobalValue): Narrowed the scope of
-	mutex locks.
-
-	* generic/tclUtil.c:		Updated Tcl_GetNameOfExecutable() to
-	* generic/tclEncoding.c:	make use of a ProcessGlobalValue for
-	* generic/tclEvent.c:		storing the executable name. Added
-	internal routines Tcl(Get|Set)ObjNameOfExecutable() to access that
-	storage in Tcl_Obj, rather than string format.
-
-	* unix/tclUnixFile.c:	Rewrote TclpFindExecutable() to use
-	* win/tclWinFile.c:	TclSetObjNameOfExecutable to store the
-	executable name it computes.
-
-	* generic/tclInt.h:	Added internal stub entries for
-	* generic/tclInt.decls: TclpFindExecutable and
-	Tcl(Get|Set)ObjNameOfExecutable.
-
-	* generic/tclIntDecls.h: make genstubs
-	* generic/tclStubInit.c:
-
-	* generic/tclCmdIL.c:	Retrieve executable name in Tcl_Obj form
-	* win/tclWinPipe.c:	instead of string form.
-
-	* unix/tclUnixTest.c:	Update [testfindexecutable] command to use new
-	internal interfaces.
-
-	* generic/tclEncoding.c:	Moved TclpSetInitialEncodings() call
-	from Tcl_FindExecutable() into TclInitEncodingSubsystem(). This is
-	important on Windows where it establishes whether the "ascii" or
-	"unicode" set of system routines will be used, and that needs to be
-	done earlier to support filesystem operations. [Bug 1077005]
-
-2004-12-01  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tests/winDde.test: Rewritten to use tcltest2 features more
-	thoroughly (reducing the [catch] count!) and fix the problem with
-	winDde-6.1 being out of synch with the implementation.
-
-2004-11-30  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/init.tcl ([unknown]): Restored the save/restore of the
-	variables ::errorCode and ::errorInfo. This is needed when the
-	[::bgerror] command is auto-loaded (as it is by Tk).
-
-	Patch 976520 reworks several of the details involved with
-	startup/initialization of the Tcl library, focused on the activities
-	of Tcl_FindExecutable().
-
-	* generic/tclIO.c:	Removed bogus claim in comment that encoding
-	"iso8859-1" is "built-in" to Tcl.
-
-	* generic/tclInt.h:	Created a new struct ProcessGlobalValue,
-	* generic/tclUtil.c:	routines Tcl(Get|Set)ProcessGlobalValue, and
-	function type TclInitProcessGlobalValueProc. Together, these take care
-	of the housekeeping for "values" (things that can be held in a
-	Tcl_Obj) that are global across a whole process. That is, they are
-	shared among multiple threads, and epoch and mutex protection must
-	govern the validity of cached copies maintained in each thread.
-
-	* generic/tclNotify.c:	Modified TclInitNotifier() to tolerate being
-	called multiple times in the same thread.
-	* generic/tclEvent.c:	Dropped the unused argv0 argument to
-	TclInitSubsystems(). Removed machinery to unsure only one
-	TclInitNotifier() call per thread, now that that is safe. Converted
-	Tcl(Get|Set)LibraryPath to use a ProcessGlobalValue, and moved them to
-	tclEncoding.c.
-	* generic/tclBasic.c:	Updated caller.
-
-	* generic/tclInt.h:	TclpFindExecutable now returns void.
-	* unix/tclUnixFile.c:
-	* win/tclWinFile.c:
-	* win/tclWinPipe.c:
-
-	* generic/tclEncoding.c: Built new encoding search initialization on a
-	foundation of ProcessGlobalValues, exposing new routines
-	Tcl(Get|Set)EncodingSearchPath. A cache of a map from encoding name to
-	directory pathname keeps track of where encodings are available for
-	loading. Tcl_FindExecutable greatly simplified into just three
-	function calls. The "library path" is now misnamed, as its only
-	remaining purpose is as a foundation for the default encoding search
-	path.
-
-	* generic/tclInterp.c:	Inlined the initScript that is evaluated by
-	Tcl_Init(). Added verification after initScript evaluation that Tcl
-	can find its installed *.enc files, and that it has initialized
-	[encoding system] in agreement with what the environment expects.
-	[tclInit] no longer driven by the value of $::tcl_libPath; it largely
-	constructs its own search path now, rather than attempt to share one
-	with the encoding system.
-
-	* unix/tclUnixInit.c:	TclpSetInitialEncodings factored so that a new
-	* win/tclWinInit.c:	routine TclpGetEncodingNameFromEnvironment can
-	reveal that Tcl thinks the [encoding system] should be, even when an
-	incomplete encoding search path, or a missing *.enc file won't allow
-	that initialization to succeed. TclpInitLibraryPath reworked as an
-	initializer of a ProcessGlobalValue.
-
-	* unix/tclUnixTest.c:	Update implementations of [testfindexecutable],
-	[testgetdefenc], and [testsetdefenc].
-
-	* tests/unixInit.test:	Corrected tests to operate properly even when
-	a value of TCL_LIBRARY is required to find encodings.
-
-	* generic/tclInt.decls: New internal stubs: TclGetEncodingSearchPath,
-	TclSetEncodingSearchPath, TclpGetEncodingNameFromEnvironment. These
-	are candidates for public exposure by future TIPs.
-
-	* generic/tclIntDecls.h: make genstubs
-	* generic/tclStubInit.c:
-
-	* generic/tclTest.c:	Updated [testencoding] to use
-	* tests/encoding.test:	Tcl(Get|Set)EncodingSearchPath.	 Updated tests.
-
-2004-11-30  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/clock.tcl: Corrected the regular expressions that match a
-	time zone to allow for time zones specified as +HH or -HH.
-	* tests/clock.test: Added regression test case for the above issue.
-	Thanks to Rolf Ade for reporting this issue [http://wiki.tcl.tk/13094]
-	* win/tclWinDde.c (Tcl_DdeObjCmd): Corrected a typo that caused a
-	compilation failure on VC++.
-
-2004-11-29  Andreas Kupries <andreask@activestate.com>
-
-	* win/Makefile.in (install-libraries): Brought entry '2004-10-26 Don
-	Porter (Tcl Modules)' into the windows world, actually the
-	win/configure buildsystem. The other windows buildsystems (.vc, .bc)
-	still have to be updated as well.
-
-2004-11-26  Andreas Kupries <andreask@activestate.com>
-
-	* win/tclWinDde.c (ExecuteRemoteObject): Removed bogus semicolon found
-	at the end of the header for the function definition, terminating it
-	early and preventing a compile. This is likely a fix for '2004-11-25
-	Donal'. I have to conclude that it is also unknown if the other
-	changes to this file actually pass the testsuite. Running testsuite
-	... They don't. winDde-6.1 fails. This is only a message discrepance,
-	i.e. not too bad. Leaving resolution of that to Pat and Donal.
-
-2004-11-26  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/auto.tcl (tcl_findLibrary): Made sure the uniquifying
-	operations on the search path does not also normalize. [Bug 1072136]
-
-2004-11-26  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* unix/configure.in: Simplify the code to check for correctness of
-	strstr, strtoul and strtod.
-	* unix/tcl.m4 (SC_TCL_CHECK_BROKEN_FUNC): Split a complex stanza out
-	of configure.in into its own function. Also force it to do the right
-	thing with cacheing of results of AC_TRY_RUN to deal with issue raised
-	in [Patch 1073524]
-
-	* doc/foreach.n: Added simple example. [FRQ 1073334]
-
-2004-11-25  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclProc.c (TclObjInterpProc):	    Make it so that only
-	* generic/tclIndexObj.c (Tcl_WrongNumArgs): [proc] instances do
-	* tests/indexObj.test (indexObj-5.7):	    quoting of their first
-	arguments, so keeping [Bug 942757] fixed and making [Bug 1066837] be
-	fixed as well. Done with a load of #ifdef-ery because this hack is so
-	ugly nobody should keep it around once Itcl's fixed.
-
-2004-11-25  Reinhard Max  <max@suse.de>
-
-	* tests/tcltest.test: The order in which [glob] returns the file names
-	is undefined, so tests should not depend on it.
-
-2004-11-25  Zoran Vasiljevic <vasiljevic@users.sf.net>
-
-	* doc/Thread.3:
-	* doc/Notifier.3: Added changes from the core-8-4-branch
-
-2004-11-25  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/dde.n: Synchronized the documentation of the commands with the
-	header of the docs and what the package actually does. Thanks to
-	Andreas Kupries for spotting this.
-	* win/tclWinDde.c (Tcl_DdeObjCmd): Much cleanup of argument parsing
-	code.
-
-2004-11-24  David Gravereaux <davygrvy@pobox.com>
-
-	* generic/tclPort.h: Relative include of tclWinPort.h returned as it
-	was requiring me set -I$(tcl_root)/win for my extensions that need to
-	include tclInt.h and doesn't appear to serve any purpose for windows
-	builds.
-
-2004-11-24  Kevin B. Kenny  <kennykb@acm.org>
-
-	* unix/tcl.m4 (SC_ENABLE_THREADS): Corrected bad check for 3-argument
-	readdir_r [Bug 1001325].
-	* unix/configure: Regenerated.
-	* unix/tclUnixNotfy.c: Corrected all uses of 'select' to manage their
-	masks using the FD_CLR, FD_ISSET, FD_SET, and FD_ZERO macros rather
-	than bit-whacking that failed under Solaris-Sparc-64. [Bug 1071807]
-	* win/tclWinInit.c (TclpInitLibraryPath): Removed unused vars 'pathc'
-	and 'pathv' that caused compilation problems on VC++ with
-	--enable-symbols.
-
-2004-11-24  Don Porter	<dgp@users.sourceforge.net>
-
-	* unix/tcl.m4 (SC_ENABLE_THREADS): Corrected failure to determine the
-	number of arguments for readdir_r on SunOS systems. [Bug 1071701]
-
-	* unix/configure:	autoconf-2.57
-
-	* generic/tclCmdIL.c (InfoVarsCmd):	Corrected segfault in new
-	* tests/info.test (info-19.6):	trivial matching branch [Bug 1072654]
-
-2004-11-24  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tools/man2html.tcl, tools/man2html1.tcl: Update to use Tcl 8.4.
-	* tools/man2html2.tcl: Fix broken .SS handling.
-
-2004-11-23  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* unix/Makefile.in: Add (commented-out) code to integrate tclConfig.h
-	into the dependency tree and 'make distclean'. [Bug 1068171]
-
-	* generic/tclResult.c (Tcl_AppendResultVA): Remove call to
-	Tcl_GetStringResult to speed up repeated calls to Tcl_AppendResult
-	with the side effect that code that wants to access interp->result
-	should always call Tcl_GetStringResult first. See [Patch 1041072]
-	discussion for more details.
-
-2004-11-22  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure: Regen.
-	* unix/tcl.m4 (SC_TCL_64BIT_FLAGS): Define HAVE_TYPE_OFF64_T only when
-	off64_t, open64(), and lseek64() are defined. IRIX 5.3 is known to not
-	include an open64 function. [Bug 1030465]
-
-2004-11-22  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure: Regen.
-	* unix/tcl.m4 (SC_ENABLE_THREADS): Check for a 2 argument version of
-	readdir_r that is known to exists under IRIX 5.3.
-	* unix/tclUnixThrd.c (TclpReaddir): Use either 2 arg or 3 arg version
-	of readdir_r. [Bug 1001325]
-
-2004-11-22  Don Porter	<dgp@users.sourceforge.net>
-
-	* unix/tclUnixInit.c (TclpInitLibraryPath): Purged dead code that used
-	* win/tclWinInit.c (TclpInitLibraryPath):  to extend the "library
-	path". Search path construction for init.tcl is now done within the
-	[tclInit] proc.
-	* generic/tclInterp.c:	Restored several directories to the search
-	* tests/unixInit.test:	path used to locate init.tcl within [tclInit].
-	This change does not restore any directories to the encoding search
-	path, so should still avoid the price of an unreasonably large number
-	of filesystem accesses during encoding initialization at startup
-	[Bug 976438]
-
-2004-11-22  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclPathObj.c: fix and new test for [Bug 1043129] in the
-	* tests/fileSystem.test: treatment of backslashes in file join on
-	Windows.
-
-2004-11-21  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/AddErrInfo.3:	Typo corrections (Thanks Daniel South).
-	* doc/interp.n:
-
-2004-11-19  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/AddErrInfo.3:	Docs for Tcl_(Get|Set)ReturnOptions. [TIP 227]
-
-	* doc/AddErrInfo.3:
-	* doc/Async.3:		Documentation updates to replace references
-	* doc/BackgdErr.3:	to global variable ::errorInfo and ::errorCode
-	* doc/SaveResult.3:	and to the ::bgerror command with references
-	* doc/after.n:		to their preferred replacements, the
-	* doc/bgerror.n:	-errorinfo and -errorcode return options,
-	* doc/error.n:		the Tcl_*InterpState routines, and the
-	* doc/exec.n:		[interp bgerror] command.
-	* doc/exit.n:
-	* doc/fileevent.n:
-	* doc/interp.n:
-	* doc/return.n:
-	* doc/tclvars.n:
-	* doc/update.n:
-
-	* tests/unixInit.test: Removed "knownBug" constraints to prompt bug
-	fixing before 8.5a2 release.
-
-2004-11-19  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Makefile:
-	* unix/configure.in:
-	* unix/tclUnixInit.c (MacOSXGetLibraryPath): changed detection of tcl
-	framework build when determining tclLibPath from overloaded
-	TCL_LIBRARY to configuration define TCL_FRAMEWORK. [Bug 1068088]
-
-	* unix/configure: autoconf-2.57
-	* unix/tclConfig.h.in: autoheader-2.57
-
-2004-11-18  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/SaveResult.3:	Documentation for Tcl_*InterpState (TIP 226).
-
-	* generic/tclEvent.c (HandleBgErrors):	Simplified program flow.
-
-	* tests/basic.test:	Updated functional (not testing) uses of
-	* tests/io.test:	[bgerror] to make use of [interp bgerror].
-	* tests/socket.test:
-	* tests/timer.test:
-
-	* tests/interp.test (interp-36.*):	[interp bgerror] tests.
-
-	* generic/tclInterp.c:	Corrected [interp bgerror] error messages.
-
-2004-11-18  Reinhard Max  <max@suse.de>
-
-	* unix/tcl.m4 (SC_CONFIG_MANPAGES): Applied an improved version of
-	* unix/configure.in:		    [Patch 996085], that introduces
-	* unix/Makefile.in:		    --enable-man-suffix.
-
-	* unix/installManPage:		    added
-	* unix/mkLinks.tcl:		    removed
-	* unix/mkLinks:			    removed
-	* unix/configure:		    generated
-
-	* unix/Makefile.in:		    Don't install tclConfig.h .
-
-2004-11-17  Don Porter	<dgp@users.sourceforge.net>
-
-	* unix/configure.in: The change below reveals that the public data
-	type Tcl_StatBuf relies on config information. For now, disabled the
-	use of the tclConfig.h file until its full impact on Tcl's interface
-	can be assessed.
-
-	* unix/configure:	autoconf-2.57
-
-	* generic/tcl.h:	Moved the #include "tclConfig.h" out of
-	* generic/tclInt.h:	tcl.h.	The config settings are not part of
-	* generic/tclPort.:	the public interface, and having it there
-	breaks compiled against uninstalled Tcl and extensions using
-	autoconf-2.5*.
-
-2004-11-16  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* unix/tclUnixChan.c (TtySetOptionProc): fixed crash configuring
-	-ttycontrol on a channel. [Bug 1067708]
-
-2004-11-16  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclIOUtil.c (TclFSEpochOk): There were two code paths via
-	which the thread copy of filesystemEpoch could be synched with the
-	master copy, but only one kept the filesystem list cache up to date.
-	Fix routes everything through a single code path. [Bug 1035775].
-
-2004-11-16  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): Stop architecture flags to 'ld' from
-	getting lost when [load] is disabled. [Bug 1016796]
-
-2004-11-16  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tcl.h:
-	* unix/configure.in: changed HAVE_CONFIG_H to HAVE_TCL_CONFIG_H.
-
-	* unix/configure: autoconf-2.57
-
-2004-11-15  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclInt.h: Added comment warning that the old ERR_IN_PROGRESS
-	and ERROR_CODE_SET flag values should not be re-used for the sake of
-	those extensions that have accessed them.
-
-	* generic/tclCmdMZ.c (Tcl_TraceObjCmd): Fixed Bug 1065378 which failed
-	* tests/trace.test (trace-33.1):	to permit a variable trace
-	created with [trace variable] to be destroyed with [trace remove].
-	Thanks to Keith Vetter for the report.
-
-2004-11-15  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/tclvars.n: Added section to documentation on global variables
-	that are specific to tclsh and wish. [Patch 1065732]
-
-2004-11-12  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclEncoding.c (TableFromUtfProc): correct crash condition
-	when TCL_UTF_MAX == 6. [Bug 1004065]
-
-2004-11-12  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/interp.n: Basic documentation of the TIP#221 API.
-
-2004-11-12  Don Porter	<dgp@users.sourceforge.net>
-
-	TIP #221 IMPLEMENTATION
-	* generic/tclBasic.c:	Define [::tcl::Bgerror] in new interps.
-	* generic/tclEvent.c:	Update Tcl_BackgroundError to make use of the
-				registered [interp bgerror] command.
-	* generic/tclInterp.c:	New [interp bgerror] subcommand.
-	* tests/interp.test:	syntax tests updated.
-
-	TIP #226 IMPLEMENTATION
-	* generic/tcl.decls:	Stubs for Tcl_(Save|Restore|Discard)InterpState
-	* generic/tcl.h:	New public opaque type, Tcl_InterpState.
-	* generic/tclInt.h:	Drop old private declarations. Add
-				Tcl(Get|Set)BgErrorHandler
-	* generic/tclResult.c:	Tcl_*InterpState implementations.
-	* generic/tclDictObj.c:	Update callers.
-	* generic/tclIOGT.c:
-	* generic/tclTrace.c:
-
-	TIP #227 IMPLEMENTATION
-	* generic/tcl.decls:	Stubs for Tcl_(Get|Set)ReturnOptions.
-	* generic/tclInt.h:	Drop old private declarations.
-	* generic/tclResult.c:	Tcl_*ReturnOptions implementations.
-	* generic/tclCmdAH.c:	Update callers.
-	* generic/tclMain.c:
-
-	* generic/tclDecls.h:	make genstubs
-	* generic/tclStubInit.c:
-
-	* unix/tclAppInit.c:	Removed tclConfig.h #include, now that tcl.h
-				takes care of it for us.
-
-	* generic/tclInt.h:	Moved verification of ptrdiff_t typedef from
-	* generic/tclExecute.c: multiple .c files into one common header where
-	* generic/tclVar.c:	it is verifiably after tclConfig.h inclusion.
-
-2004-11-12  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tcl.h:
-	* generic/tclInt.h:
-	* unix/Makefile.in: include tclConfig.h from tcl.h and install it as a
-	public header. Normalized compiler include path order to
-	-I${BUILD_DIR} -I${UNIX_DIR} -I${GENERIC_DIR}.
-
-	* unix/dltest/Makefile.in: add ${BUILD_DIR}/.. to include path to pick
-	up tclConfig.h.
-
-	* unix/tclUnixInit.c: moved check for HAVE_CFBUNDLE define after
-	#include "tclInt.h" to ensure tclConfig.h has been included.
-
-2004-11-12  Reinhard Max  <max@suse.de>
-
-	* unix/config.h.in:
-	* unix/tclConfig.h.in:	renamed
-
-	* unix/Makefile.in:	Completed support for config header,
-	* unix/configure.in:	fixed building outside of the unix dir,
-	* unix/tclAppinit.c:	and reflected the name change of config.h.
-	* generic/tclInt.h:
-
-	* unix/configure:	generated
-
-2004-11-12  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* unix/config.h.in:	Allow configure to put all the C #defs into
-	* unix/configure.in:	a file (called config.h) so that Unix builds
-	* unix/tcl.m4:		now take far fewer lines of scrollback to
-	* unix/Makefile.in:	proceed (making it less likely that any errors
-	* generic/tclInt.h:	or warnings will get missed).
-	* unix/tclAppInit.c:	Part of the TIP#34 upgrades.
-
-	* unix/tcl.m4, unix/tclUnixPort.h: Check for pthread_attr_get_np in
-	<pthread.h> before forcing the use of <pthread_np.h> to make things
-	work on NetBSD 2.0. [Bug 1064882]
-
-	* doc/binary.n, doc/upvar.n: More minor fixes.
-
-2004-11-12  Daniel Steffen  <das@users.sourceforge.net>
-
-	* doc/CrtChannel.3:
-	* doc/Interp.3:
-	* doc/Limit.3:
-	* doc/binary.n:
-	* doc/dict.n:
-	* doc/tm.n:
-	* doc/upvar.n: fixed *roff errors uncovered by running 'make html'.
-
-	* tools/tcltk-man2html.tcl: added faked support for bullet point
-	lists, i.e. *nroff ".IP \(bu" syntax.
-
-2004-11-11  Daniel Steffen  <das@users.sourceforge.net>
-
-	* tests/fCmd.test:
-	* unix/tclUnixFCmd.c (TraverseUnixTree): added option to rewind() the
-	readdir() loop whenever the source hierarchy has been modified by
-	traverseProc (e.g. by deleting files); this is required to ensure
-	complete traversal of the source hierarchy on certain filesystems like
-	HFS+. Added test for failing recursive delete on Mac OS X that was due
-	to this. [Bug 1034337]
-
-	* generic/tclListObj.c (Tcl_ListObjReplace): use memmove() instead of
-	manual copy loop to shift list elements. Decreases time spent in
-	Tcl_ListObjReplace() from 5.2% to 1.7% of overall runtime of tclbench
-	on a ppc 7455 (i.e. 200% speed increase). [Patch 1064243]
-
-	* generic/tclHash.c: hoisted some constant pointer dereferences out of
-	loops to eliminate redundant loads that the gcc optimizer didn't deal
-	with. Decreases time spend in Tcl_FindHashEntry() by 10% over a full
-	run of the tcl testuite on a ppc 7455. [Patch 1064243]
-
-	* tests/fileName.test:
-	* tests/fileSystem.test:
-	* tests/io.test:
-	* tests/msgcat.test:
-	* tests/tcltest.test:
-	* tests/unixInit.test: fixed bugs causing failures when running tests
-	with -tmpdir arg not set to working dir.
-
-	* macosx/Makefile: corrected path to html help inside framework.
-	Prevent parallel make from building several targets at the same time.
-
-	* macosx/tclMacOSXFCmd.c (struct fileinfobuf): force struct to be
-	packed to prevent failures when builing with -malign=natural.
-
-2004-11-10  Andreas Kupries <andreask@activestate.com>
-
-	* unix/tclUnixChan.c: [Bug 727786]. Exterminated the code marked
-	DEPRECATED. This code has not been used in over a year now, and we
-	have no complaints.
-
-2004-11-08  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinPipe.c: The pipe channel driver now respects the -blocking
-	option when closing is the same way the UNIX side works. This is to
-	avoid a hung shell when exiting due to open pipes that refuse to close
-	in a graceful manner.
-	* doc/open.n: Added a note about -blocking 0 and lack of exit status
-	as it had never been documented. [Bug 947693]
-
-	***POTENTIAL INCOMPATIBILITY***
-
-	Scripts that use async pipes on windows, must (like the UNIX side) set
-	-blocking to 1 before calling [close] to receive the exit status.
-
-2004-11-07  David Gravereaux <davygrvy@pobox.com>
-
-	* tests/winFile.test: added contraint to winFile-4.0 to prevent it
-	being run on NT4 [Bug 981829]
-
-2004-11-05  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tests/reg.test: Major reorganization so that this file is much
-	easier for a normal Tcl maintainer to comprehend. The test flags are
-	still very cryptic, but they appear to have to be that way. The number
-	of skipped tests has increased, but now the skipped tests have much
-	more meaningful content.
-
-	* tests/tm.test (genpaths): Add a [file normalize] so we pick up
-	Windows drive letters, etc. [Bug 1053568]
-
-2004-11-04  Don Porter	<dgp@users.sourceforge.net>
-
-	* changes:	Updates toward an 8.5a2 release.
-
-2004-11-03  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/clock.tcl (FreeScan): Fixed a bug where scanning "Monday"
-	with a base time other than midnight incorrectly carried the base time
-	forward.
-
-	* test/clock.test (clock-33.{5,5a}): Made the test failure more
-	informative.
-
-	* tests/clock.test (clock-34.{28,44,45,46}): Removed 'knownBug'
-	constraints from tests that no longer fail.
-
-	Thanks to Don Porter for reporting these.
-
-2004-11-03  David Gravereaux <davygrvy@pobox.com>
-
-	* generic/tcl.h:		Moved the preprocessor logic
-	* generic/tclDecls.h:		from tclInt.h of setting the
-	* generic/tclInt.h:		TCL_STORAGE_CLASS macro to the
-	* generic/tclIntDecls.h:	tcl*Decls.h files now that no
-	* generic/tclIntPlatDecls.h:	use of EXTERN is left in tclInt.h.
-	* generic/tclPlatDecls.h:	Proto for Tcl_Main moved in tcl.h
-	* win/tclWinPort.h:		to prior the inclusion of the Stubs
-	headers as they are now resetting TCL_STORAGE_CLASS. Removed
-	extraineous reset from tclWinPort.h. [Patch 1055668]
-
-	* generic/tclCompile.h: Removed extrainious reset of TCL_STORAGE_CLASS
-	missed in my last edit.
-
-2004-11-03  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/init.tcl ([unknown]): Corrections to the 2004-10-25 mods to
-	Aunt ??? in [unknown]. Flaws revealed by Itcl test suite, which still
-	apparently relies on this brokenness. Also added comment suggesting
-	the error message that any code using this hack *ought* to receive in
-	reply.
-
-	* generic/tclTrace.c (TclCallVarTraces):  Improved ability to debug
-	* tests/incr-old.test (incr-old-2.6):	  errors during variable
-	* tests/incr.test (incr-{1,2}.28):	  traces by preserving the
-	* tests/set.test (set-{2,4}.4):		  -errorinfo data.
-	* tests/trace.test (trace-33.1):	  [Bug 527164]
-
-2004-11-02  David Gravereaux <davygrvy@pobox.com>
-
-	* generic/tclInt.h: added a check for #ifdef __cplusplus around the
-	#define of MODULE_SCOPE. About the only time it would be problem is
-	when someone is statically linking to Tcl and accessing internals from
-	a C++ file and has name mangling issues from the lack of "C" after
-	'extern' [Patch 1055668].
-	* generic/tclCompile.h: Exchanged use of the EXTERN macro to the new
-	MODULE_SCOPE macro. Lowered exported internals count by 35. [Patch
-	1055668]
-	* win/tclWinInt.h:
-	* win/tclWinPort.h: exported internals dropped by a count of 14.
-	* generic/tclFileSystem.h: Added use of MODULE_SCOPE on protos.
-	* generic/tclRegexp.h: manipulating TCL_STORAGE_CLASS unnecessary.
-
-2004-11-02  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl:		Corrected some misleading
-	* tests/tcltest.test (tcltest-26.1,2):	displays of ::errorInfo and
-	::errorCode information when the -setup, -body, and/or -cleanup scripts
-	return an unexpected return code. Thanks to Robert Seeger for the fix.
-	[RFE 1017151].
-
-2004-11-02  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclExecute.c (TclExecuteByteCode): Improved version of the
-	NaN fix from Miguel Sofer. [Bug 761471]
-
-2004-11-02  Kevin Kenny	 <kennykb@acm.org>
-
-	* library/tzdata/America/Cuiaba: Change to DST rules for
-	* library/tzdata/America/Havana: autumn of 2004.
-	[ftp://elsie.nci.nih.gov/pub/tzdata2004g.tar.gz]
-
-	* tools/tclZIC.tcl: Updated to be compatible with recent changes in
-	library/clock.tcl.
-
-2004-11-02  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* win/tclWinFile.c: Simplify TclpUtime to use Tcl_FSGetNativePath, and
-	add comments.
-
-2004-11-02  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclInt.h: Change uses of EXTERN to MODULE_SCOPE (defined in
-	this file too to be 'extern' if not overridden) as nothing declared in
-	tclInt.h is supposed to be visible outside the Tcl core. If there *is*
-	anything that extensions are actually using, we can open this up later
-	on. [Patch 1055668]
-
-	* doc/CrtChannel.3 (Tcl_GetChannelMode): Add synopsis. [Bug 1058446]
-
-2004-11-01  Kevin B. Kenny  <kennykb@acm.org>
-
-	* win/tclWinFile.c (FromCTime, TclpUtime): Replaced a call to the
-	Posix 'utime' function with calls to Windows-API equivalents, to avoid
-	a bug where the VC++ versions misconvert times across a Daylight
-	Saving Time boundary. [Bug 926106]
-	* win/tclWinInt.h (TclWinProcs):
-	* win/tclWin32Dll.c (asciiProcs, unicodeProcs): Removed now-unused
-	reference to 'utime'.
-	* tests/cmdAH.test (cmdAH-24.12): Added test case for the above bug.
-
-2004-11-01  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclExecute.c (TclExecuteByteCode): Make INST_EQ and friends
-	handle NaN correctly in all cases. [Bug 761471]
-
-	* generic/tclNamesp.c (NamespaceInscopeCmd): Make the error message
-	generation the same as in NamespaceEvalCmd().
-	(Tcl_Import): Rationalized to use Tcl_EvalObjv().
-
-2004-10-31  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tests/io.test (io-40.3): Convert umask2 test constraint into a form
-	that most people will be able to satisfy.
-
-	* tests/cmdAH.test (cmdAH-8.45): Removed broken test constraint. It
-	didn't do what it was intended to do, and it implied the other correct
-	constraint. [Bug 1053908]
-
-	* generic/tclCmdIL.c (InfoGlobalsCmd):
-	* tests/info.test (info-8.4): Strip leading global-namespace
-	specifiers from the pattern argument. [Bug 1057461]
-
-2004-10-30  Kevin Kenny	 <kennykb@acm.org>
-
-	* generic/clock.c: Replaced WIN32 macro with __WIN32__. [Bug 1054357].
-	Thanks to David Gravereaux for the patch.
-	* win/tclWinFile.c: Removed a long-standing bug that causes incorrect
-	conversion between file time and UTC time if the file time is recorded
-	in a different Daylight Saving Time status than the current one. [Bug
-	926106]
-
-2004-10-29  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl:	Correct reaction to errors in the
-	obsolete processCmdLineArgsHook.	[Bug 1055673]
-	* library/tcltest/pkgIndex.tcl:	Bump to tcltest 2.2.7
-	* unix/Makefile.in:
-	* tests/all.tcl:	Update to use [tcltest::configure].
-
-2004-10-29  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* library/tm.tcl (::tcl::tm::*): Use the core proc engine to generate
-	the wrong-num-args error messages for the path ensemble.
-
-	Ensembles can now (sometimes) rewrite the error messages of their
-	subcommands so they appear more like the arguments that the user
-	passed to the ensemble. Below is a description of changes involved in
-	doing this.
-
-	* tests/namespace.test (namespace-50.*): Tests of ensemble subcommand
-	error message rewriting.
-	* generic/tclProc.c (TclObjInterpProc): Make procedures implement
-	their wrong-num-args message using Tcl_WrongNumArgs instead of
-	something baked-at-home.
-	* generic/tclNamesp.c (TclIsEnsemble, NsEnsembleImplementationCmd):
-	Added test of ensemble-hood (available to rest of core) and made
-	ensembles set up the rewriting for Tcl_WrongNumArgs to take advantage
-	of.
-	* generic/tclInt.h (Interp.ensembleRewrite): Extra fields.
-	* generic/tclIndexObj.c (Tcl_WrongNumArgs): Add knowledge of what is
-	going on in ensembles' command rewriting so this command can generate
-	the right error message itself.
-	* generic/tclBasic.c (Tcl_CreateInterp, TclEvalObjvInternal): Added
-	code to initialize (as empty) the rewriting fields and reset them when
-	we leak outside an ensemble implementation.
-
-2004-10-28  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclExecute.c (INST_START_CMD):
-	* tests/execute.test (execute-8.3): fix for execution stack corruption
-	[Bug 1055676]. Credit dgp for detective work and fix.
-
-2004-10-27  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/socket.test (socket-13.1):	Balanced [makeFile] and
-	[removeFile] commands.
-
-	* tests/clock.test:	Correct duplicate test names.
-	* tests/namespace.test:
-	* tests/string.test:
-	* tests/io.test (io-50.4):	Use namespace variables.
-
-2004-10-27  David Gravereaux <davygrvy@pobox.com>
-
-	* generic/tclInt.decls:	  The following 9 functions were moved from
-	* generic/tclInt.h:	  tclInt.h to the private/int Stubs table for
-	* generic/tclIntDecls.h:  use by the test suite. As tclTest.obj is
-	* generic/tclStubInit.c:  linked to the shell, these functions need
-	"blessed" status so as to always be exported from the library. Being
-	placed in the Stubs table guarantees this [Bug 1054748]:
-		TclpObjRemoveDirectory,	TclpObjCopyDirectory,
-		TclpObjCreateDirectory,	TclpObjDeleteFile,
-		TclpObjCopyFile,	TclpObjRenameFile,
-		TclpObjStat,		TclpObjAccess,
-		TclpOpenFileChannel
-
-	* tests/registry.test:	Fixed test files to load the correct
-	* tests/winDde.test:	registry and dde packages by using the info
-	* win/Makefile.in:	from makefiles to tell tcltest where to load
-	* win/makefile.vc:	them from. This avoids grabbing the wrong
-	package from $auto_path which might be the install point rather than
-	the dev location. Kudos to Jennifer Hom for adding -load and
-	-loadfile to the tcltest package. [Bug 926088]
-
-	* win/tclWinThrd.c (TclFinalizeLock): release the critical section
-	before deleting it. [Bug 731778]
-
-	* generic/tcl.h: Removed the file level 'extern "C" {' and the
-	coresponding closing block as it serves no purpose given that all the
-	function prototypes have the proper extern usage already.
-
-	* unix/tclAppInit.c:	When built as tcltest, TclThread_Init was
-	* win/tclAppInit.c:	getting called twice. First by Tcltest_Init,
-	then again in Tcl_AppInit. The call from Tcl_AppInit is now removed.
-
-2004-10-27  Andreas Kupries <andreask@activestate.com>
-
-	* tests/tm.test:  Expanded on the testsuite entered by Donal.
-	* library/tm.tcl: Even found bugs, these have been corrected.
-
-2004-10-26  Kevin Kenny <kennykb@acm.org>
-
-	* tests/format.test (format-19.1): Additional regression test for [Bug
-	868489].
-
-2004-10-27  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/*.n: Many small general documentation fixes.
-
-2004-10-26  David Gravereaux <davygrvy@pobox.com>
-
-	* generic/tclPipe.c (TclCleanupChildren): bad cast of resolvedPid
-	caused PIDs on win95 to go negative. winpipe-4.2 brought this to the
-	surface. Fixed with sprintf in place of TclFormatInt. Thanks to hgiese
-	[Patch 767676]
-
-2004-10-26  Andreas Kupries <andreask@activestate.com>
-
-	* library/tm.tcl (::tcl::tm::Defaults): Added a second [file dirname]
-	around the location of the executable. This fixes [Bug 1038705].
-	Instable of a bogus "foo/bin/lib" we now have the correct "foo/lib" as
-	a base path for modules.
-
-2004-10-26  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclParse.c (Tcl_SubstObj):	Fix for failed subst-12.3 test
-	* tests/subst.test (subst-12.3-5):	More tests for Bug 1036649.
-
-	* unix/Makefile.in (install-libraries): Updated the installation of
-	the http, msgcat, and tcltest packages to install as Tcl Modules on
-	Unix systems. Other platform Makefiles still need updating. [Patch
-	1054370]
-
-	* tests/basic.test:	Added missing constraints.
-	* tests/compile.test:
-	* tests/fileSystem.test:
-
-	* tests/init.test (init-2.8):	Updated to not rely on http package.
-
-2004-10-26  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclInt.h:
-	* generic/tclVar.c: removed more direct references to the VAR flags,
-	replaced with access macros.
-
-2004-10-26  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/expr.n: Clarified that non-num/non-bool literals require
-	quoting. [Bug 1027849]. Also listed booleans as acceptable values.
-
-2004-10-26  Kevin B. Kenny <kennykb@acm.org>
-
-	* library/clock.tcl (FreeScan): Fixed a bug that caused relative days
-	of the week in free-form [clock scan] to be evaluated in the wrong
-	time zone.
-	* tests/clock.test (clock-31.[456]): Made sure that there isn't an
-	env(TZ) or env(TCL_TZ) lying around that will override the time zone
-	that we're trying to establish with the simulated registry.
-	Both problems reported as [Bug 1054101].
-
-2004-10-25  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/string.n (map): Rewrote to clarify that we don't just map single
-	characters. [Bug 1048005]
-	* doc/info.n (procs): Clarified that the pattern argument may have
-	namespace separators in it. [Bug 1047928]
-
-	* tests/cmdAH.test (cmdAH-8.45): Simplify in the hope that the reasons
-	for [Bug 1053908] will become clearer.
-
-2004-10-25  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c (IllegalExprOperandType,TclExecuteByteCode):
-	Removed several DECACHE_INFO/CACHE_INFO pairs that are no longer
-	needed for protection because routines like Tcl_SetErrorCode() and
-	Tcl_AddErrorInfo() can no longer re-enter bytecode execution.
-
-	* generic/tclResult.c (TclProcessReturn): Bug fix. Be sure that a
-	missing -errorinfo option when code == TCL_ERROR causes the errorInfo
-	field to get reset.
-
-	* tests/thread.test (thread-4.4): Test depended on a ::errorInfo value
-	initialized to "". Added code to test to setup that requirement.
-
-	* library/auto.tcl:	Purged Tcl's script library of all
-	* library/clock.tcl:	remaining references to global vars
-	* library/init.tcl:	::errorInfo and ::errorCode.
-
-	* generic/tclMain.c (Tcl_Main): Updated to make use of
-	TclGetReturnOptions instead of ::errorInfo variable.
-
-	* generic/tclInterp.c (tclInit): Bug fix. Access dict variables with
-	[dict get], not array syntax.
-
-2004-10-25  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tests/tm.test: Rewrote the tests to actually perform syntax checks
-	on the public API. Added a new test (currently failing) to indicate
-	that the test suite is not complete yet.
-	* library/tm.tcl (path): Rewrote to turn this command into an ensemble
-	to make it faster and simpler.
-
-2004-10-24  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCmdIL.c:
-	* generic/tclExecute.c:
-	* generic/tclInt.h:
-	* generic/tclTrace.c: defined new macros to get/set the flags of
-	variables. The only files that still access the flag values directly
-	are tclCompCmds.c, tclCompile.c, tclProc.c and tclVar.c
-
-2004-10-24  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c (Tcl_LogCommandInfo,Tcl_AddObjErrorInfo): Shift
-	the initialization of errorCode to NONE to more central location.
-
-	* generic/tclEvent.c (BgError,Tcl_BackgroundError,HandleBgErrors):
-	Rewrite to build on the new TclGet/SetReturnOptions routines.
-
-	* generic/tclResult.c (TclGetReturnOptions): Add call to
-	Tcl_AddObjErrorInfo to be sure error fields are initialized.
-
-	* generic/tclResult.c (TclTransferResult): Rewrite to build on the new
-	TclGet/SetReturnOptions routines.
-
-2004-10-22  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/tm.n: Tightened up the documentation.
-	* tests/tm.test: Created (with partially dummy content) so TIP#189 can
-	be marked Final.
-
-	* generic/tclNamesp.c (NsEnsembleImplementationCmd): Make ensembles
-	cut their implementations out of error traces. This is the right thing
-	to do more often than not.
-
-2004-10-22  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/clock.tcl: Fixed a typo where the fallback time zone became
-	::localtime instead of :localtime. Fixed a bug where time zone names
-	containing hyphens could not be loaded.
-	* tests/clock.test: Added regression test cases that covers both bugs.
-	Thanks to Todd M. Helfter <tmh@jumpgate.itsp.purdue.edu> for finding
-	these bugs.
-
-2004-10-22  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclExecute.c (TclCompEvalObj, Tcl_ExprObj):
-	* generic/tclProc.c (TclProcCompileProc): Always call object
-	freeIntRepProc's in the same way.
-
-2004-10-22  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclVar.c: fixed bug in commit of 2004-07-23, which was
-	causing a leak of Proc structures and failure of compile-12.1. Two
-	lines were 'zombies' from the previous way localVarNames worked.
-	Credit dgp for finding this.
-
-2004-10-21  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclInt.h (Interp):
-	* generic/tclBasic.c (Tcl_CreateInterp,Tcl_DeleteInterp):
-	* generic/tclResult.c (GetKeys,ReleaseKeys,etc.): Moved the key values
-	of the return options dictionary out of private fields of the Interp
-	struct and into thread-static values managed in tclResult.c.
-
-	* generic/tclCmdAH.c (Tcl_CatchObjCmd, Tcl_ErrorObjCmd): Updated to
-	call the new TclGet/SetReturnOptions routines to do much of their
-	work.
-
-	* generic/tclInt.h (TclGetReturnOptions,TclSetReturnOptions):
-	* generic/tclResult.c (TclGetReturnOptions,TclSetReturnOptions): New
-	utility routines to get/set the return options of an interp. Intent is
-	that these routines will be converted to public routines after TIP
-	approval.
-
-	* generic/tclCmdMZ.c (TclProcessReturn,TclMergeReturnOptions):
-	* generic/tclResult.c (TclProcessReturn,TclMergeReturnOptions): Move
-	internal utility routines from tclCmdMZ.c to tclResult.c.
-
-	* generic/tclBasic.c (Tcl_CreateInterp, Tcl_DeleteInterp):
-	* generic/tclResult.c (TclTransferResult): Rework so that
-	iPtr->returnOpts can be NULL when there are no special options.
-
-	* generic/tclResult.c (TclRestoreInterpState): Plug potential memory
-	leak.
-
-2004-10-21  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclBasic.c: Various changes to [clock format] that,
-	* generic/tclClock.c: together, make it roughly twice as fast
-	* generic/tclInt.h:   while all tests in the test suite
-	* library/clock.tcl:  continue to pass.
-
-2004-10-20  Andreas Kupries <andreask@activestate.com>
-
-	* win/Makefile.in (install-msgs):   Fixed a problem with the
-	* win/Makefile.in (install-tzdata): installation of timezone data and
-	message catalogs. They used the installed tcl library directory, not
-	the source library. Before it was installed. Switched to source lib
-	dir. Thanks to Kevin for the help in figuring this out.
-
-2004-10-20  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclThreadTest.c (ThreadEventProc): Corrected subtle bug
-	where the returned (char *) from Tcl_GetStringResult(interp) continued
-	to be used without copying or refcounting, while activity on the
-	interp continued. That's not safe, and recent changes demonstrated the
-	lack of safety with failing tests thread-4.3 and thread-4.5.
-
-2004-10-19  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclDictObj.c (DictWithCmd): Make sure all paths (that are
-	not themselves error paths) do not lose the result code.
-
-2004-10-19  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclInt.h (Tcl*InterpState):		New internal routines
-	* generic/tclResult.c (Tcl*InterpState):	TclSaveInterpState,
-	TclRestoreInterpState, and TclDiscardInterpState are superior
-	replacements for Tcl_(Save|Restore|Discard)Result. Intent is that
-	these routines will be converted to public routines after TIP
-	approval. Interfaces for these routines were shamelessly stolen from
-	Itcl.
-
-	* generic/tclBasic.c (TclEvalObjvInternal):
-	* generic/tclDictObj.c (DictUpdateCmd, DictWithCmd):
-	* generic/tclIOGT.c (ExecuteCallback):
-	* generic/tclTrace.c (Trace*Proc,TclCheck*Traces,TclCallVarTraces):
-	Callers of Tcl_*Result updated to call the new routines. The calls
-	were relocated in several cases to perform save/restore operations
-	only when needed.
-
-	* generic/tclEvent.c (HandleBgErrors):
-	* generic/tclFCmd.c (CopyRenameOneFile): Calls to Tcl_*Result that
-	were eliminated because they appeared to serve no useful purpose,
-	typically saving/restoring an error message, only to throw it away.
-
-2004-10-18  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c (Tcl_CreateInterp,Tcl_DeleteInterp):
-	* generic/tclCmdAH.c (Tcl_CatchObjCmd):
-	* generic/tclCmdMZ.c (TclMergeReturnOptions,TclProcessReturn):
-	* generic/tclCompCmds.c (TclCompileReturnCmd):
-	* generic/tclExecute.c (TclCompEvalObj):
-	* generic/tclInt.h (Interp):
-	* generic/tclProc.c (TclUpdateReturnInfo): Place primary storage of
-	the -level and -code information in private fields of the Interp
-	struct, rather than in a DictObj. This should significantly improve
-	performance of TclUpdateReturnInfo.
-
-2004-10-17  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclResult.c: removed unused variable [Bug 1048588]. Thanks
-	to Daniel South.
-
-2004-10-15  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c (TclProcessReturn):	Now that primary
-	* generic/tclProc.c (TclUpdateReturnInfo):	storage for the
-	errorInfo and errorCode values are internal fields, we can set them at
-	the time of the [return] command, and not have to wait until the
-	specified number of "-level"s have popped.
-
-	* generic/tclBasic.c (Tcl_CreateInterp, Tcl_DeleteInterp)
-	(TclEvalObjvInternal, Tcl_LogCommandInfo, TclAddObjErrorInfo):
-	* generic/tclCmdAH.c (Tcl_CatchObjCmd):
-	* generic/tclEvent.c (BgError, ErrAssocData, Tcl_BackgroundError)
-	(HandleBgErrors, BgErrorDeleteProc):
-	* generic/tclExecute.c (TclCreateExecEnv, TclDeleteExecEnv):
-	* generic/tclIOUtil.c (comments only):
-	* generic/tclInt.h (ExecEnv,Interp, ERR_IN_PROGRESS):
-	* generic/tclInterp.c ([tclInit]):
-	* generic/tclMain.c (comments only):
-	* generic/tclNamesp.c (Tcl_CreateNamespace, Tcl_DeleteNamespace)
-	(TclTeardownNamespace):
-	* generic/tclProc.c (TclUpdateReturnInfo):
-	* generic/tclResult.c (Tcl_ResetResult, TclTransferResult):
-	* generic/tclTrace.c (CallVarTraces):
-	Reworked management of the "errorInfo" data of an interp. That
-	information is now primarily stored in a new private (Tcl_Obj *) field
-	of the Interp struct, rather than using a global variable ::errorInfo
-	as the primary storage. The ERR_IN_PROGRESS flag bit value is no
-	longer required to manage the value in its new location, and is
-	removed. Variable traces are established to support compatibility for
-	any code expecting the ::errorInfo variable to hold the information.
-
-	***POTENTIAL INCOMPATIBILITY***
-	Code that sets traces on the ::errorInfo variable may notice a
-	difference in timing of the firing of those traces. Code that uses the
-	value ERR_IN_PROGRESS.
-
-2004-10-14  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	TIP#217 IMPLEMENTATION
-
-	* generic/tclCmdIL.c (Tcl_LsortObjCmd): Add -indices option from James
-	Salsman. [Patch 1017532]
-
-	* generic/tclUtil.c (TclMatchIsTrivial): Detect degenerate cases of
-	glob matching that let us avoid scanning through hash tables.
-	* generic/tclCmdIL.c (InfoCommandsCmd, InfoGlobalsCmd, InfoProcsCmd):
-	(InfoVarsCmd): Use this to speed up some [info] subcommands.
-
-2004-10-12  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata/America/Campo_Grande:
-	* library/tzdata/America/Cuiaba:
-	* library/tzdata/America/Sao_Paulo
-	* library/tzdata/America/Argentina/Mendoza:
-	* library/tzdata/America/Argentina/San_Juan:
-	Synchronized to Olson's 'tzdata2004e'.
-
-2004-10-08  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	TIP#201 AND TIP#212 IMPLEMENTATIONS
-
-	* doc/dict.n, doc/expr.n: Documentation for new functionality.
-	* tests/expr.test: Basic tests of 'in' and 'ni' behaviour.
-	* tests/dict.test (dict-21.*,dict-22.*): Tests for [dict update] and
-	[dict with].
-	* generic/tclExecute.c (TclExecuteByteCode): Implementation of the
-	INST_LIST_IN and INST_LIST_NOT_IN bytecodes.
-	* generic/tclParseExpr.c (GetLexeme): Parse the 'in' and 'ni'
-	operators for TIP#201.
-	* generic/tclDictObj.c (DictUpdateCmd,DictWithCmd): Core of
-	implementation of TIP#212; docs and tests still to do...
-
-2004-10-07  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclTest.c (TestsetobjerrorcodeCmd):  Simplified.
-
-2004-10-07  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFileName.c:
-	* generic/tclFileSystem.h:
-	* generic/tclIOUtil.c:
-	* generic/tclPathObj.c:
-	* unix/tclUnixFile.c:
-	* win/tclWinFile.c:
-	* tests/fileName.test:
-	* tests/winFCmd.test: code reorganization for better generic/platform
-	code splitting [Bug 925620] removing the need for several #ifdef's,
-	and tests and fix for an unreported Windows glob problem ('glob -dir
-	C: -tails *').
-
-2004-10-07  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* *.3: Convert CONST to const and VOID to void so we document how
-	people should actually use the Tcl API and not the compatibility hacks
-	that it has to have.
-
-	* doc/man.macros, *.3: Update .AS macro so it can know how wide to
-	make the third column of the argument list. Update documentation for C
-	API (only users) to take advantage of this.
-
-	* doc/FileSystem.3: Formatting fixes for greater documentation
-	clarity.
-
-2004-10-06  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclFileName.c (DoGlob, TclGlob): Stop messy sharing of
-	interpreter result and instead use a private object for collecting the
-	result of the glob. This simplifies TclGlob quite a lot.
-	* generic/tclIOUtil.c (Tcl_FSMatchInDirectory): Simplify by removing
-	some nesting. Also standardize variable names.
-	(FsAddMountsToGlobResult): Force updates to the list to be done
-	in-place, putting a side-condition of non-shared-ness on the resultPtr
-	argument to Tcl_FSMatchInDirectory, but everything would have broken
-	before if that was shared *anyway*.
-
-	* generic/tclEncoding.c (LoadTableEncoding): Removed reference to Tcl
-	interpreter; it wasn't needed as direct object use is more efficient.
-
-	* generic/tclPathObj.c: Made this file follow the style rules in the
-	Engineering Manual more closely, and also take advantage of the
-	internal object manipulation macros more.
-
-	* generic/tclCmdMZ.c (Tcl_SwitchObjCmd): Reorganized to have fewer
-	magic flag variables and to separate the code that scans for a match
-	from the code that processes a match body.
-
-2004-10-06  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:
-	* generic/tclBinary.c:
-	* generic/tclCmdAH.c:
-	* generic/tclCmdIL.c:
-	* generic/tclCmdMZ.c:
-	* generic/tclCompExpr.c:
-	* generic/tclDictObj.c:
-	* generic/tclEncoding.c:
-	* generic/tclExecute.c:
-	* generic/tclFCmd.c:
-	* generic/tclHistory.c:
-	* generic/tclIndexObj.c:
-	* generic/tclInterp.c:
-	* generic/tclIO.c:
-	* generic/tclIOCmd.c:
-	* generic/tclNamesp.c:
-	* generic/tclObj.c:
-	* generic/tclPkg.c:
-	* generic/tclResult.c:
-	* generic/tclScan.c:
-	* generic/tclTimer.c:
-	* generic/tclTrace.c:
-	* generic/tclUtil.c:
-	* generic/tclVar.c:
-	* unix/tclUnixFCmd.c:
-	* unix/tclUnixPipe.c:
-	* win/tclWinDde.c:
-	* win/tclWinFCmd.c:
-	* win/tclWinPipe.c:
-	* win/tclWinReg.c:
-	It is a poor practice to directly set or append to the value of the
-	objResult of an interp, because that value might be shared, and in
-	that circumstance a Tcl_Panic() will be the result. Searched for
-	example of this practice and replaced with safer alternatives, often
-	using the Tcl_AppendResult() routine that dkf just rehabilitated.
-	* library/dde/pkgIndex.tcl: Bump to dde 1.3.1
-	* library/reg/pkgIndex.tcl: Bump to registry 1.1.5
-
-2004-10-06  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/SetResult.3: Made Tcl_AppendResult non-deprecated; better that
-	people use it than most of the common alternatives!
-	* generic/tclResult.c (Tcl_AppendResultVA): Make this work better with
-	Tcl_Objs. [Patch 1041072]
-	(Tcl_SetResult, Tcl_AppendElement): Change string to stringPtr to
-	avoid C++ keywords.
-
-2004-10-05  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c (TclObjInvoke): More simplification of the
-	TclObjInvoke routine toward unification with the rest of the
-	evaluation stack.
-
-	* generic/tclBasic.c (Tcl_CreateInterp, Tcl_DeleteInterp)
-	(TclEvalObjvInternal, Tcl_LogCommandInfo):
-	* generic/tclCmdAH.c (Tcl_CatchObjCmd):
-	* generic/tclEvent.c (BgError, Tcl_BackgroundError, HandleBgErrors):
-	* generic/tclInt.h (Interp, ERROR_CODE_SET):
-	* generic/tclNamesp.c (Tcl_CreateNamespace, Tcl_DeleteNamespace)
-	(TclTeardownNamespace):
-	* generic/tclResult.c (Tcl_ResetResult, Tcl_SetObjErrorCode)
-	(TclTransferResult):
-	* generic/tclTrace.c (CallVarTraces):
-	Reworked management of the "errorCode" data of an interp. That
-	information is now primarily stored in a new private (Tcl_Obj *) field
-	of the Interp struct, rather than using a global variable ::errorCode
-	as the primary storage. The ERROR_CODE_SET flag bit value is no longer
-	required to manage the value in its new location, and is removed.
-	Variable traces are established to support compatibility for any code
-	expecting the ::errorCode variable to hold the information.
-
-	***POTENTIAL INCOMPATIBILITY***
-	Code that sets traces on the ::errorCode variable may notice a
-	difference in timing of the firing of those traces.
-
-	* generic/tclNamesp.c (Tcl_PopCallFrame): Removed Bug 1038021
-	workaround. That bug is now fixed.
-
-2004-10-04  Kevin B. Kenny  <kennykb@acm.org>
-
-	* tests/clock.test (clock-34.*): Removed an antibug that forced
-	comparison of [clock scan] results with the :localtime time zone. Now
-	that [clock scan] uses the current time zone instead, the antibug
-	caused several tests to fail. [Bug 1038554]
-
-2004-10-04  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclParseExpr.c (GetLexeme): Ensure that the 'eq' and 'ne'
-	operators are followed by non-alphabetic characters so lexemes can't
-	run together. [Bug 884830]
-
-	* doc/DictObj.3, doc/dict.n: Clarified that a dictionary is not
-	order-preserving. [Bug 1032243] Also added another example to show off
-	more ways of using a dictionary and a few other formatting
-	improvements.
-
-2004-10-02  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclDictObj.c (TraceDictPath, Tcl_DictObjPutKeyList): Add
-	support for automatic creation of dictionary paths since that is what
-	everyone seems to actually expect of the API! [Bug 1037235]
-	(Tcl_DictObjNext): Make calling this after Tcl_DictObjDone non-fatal
-	as that simplifies a number of internal APIs. This doesn't break any
-	existing working code as it is a case which previously caused a panic.
-
-2004-10-02  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/namespace.test (namespace-8.7):	Another test for save/restore
-	of ::errorInfo and ::errorCode during global namespace teardown.
-
-2004-10-01  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclProc.c (TclObjGetFrame, Tcl_UplevelObjCmd):
-	* generic/tclVar.c (Tcl_UpvarObjCmd): Cache stackframe level
-	references in the level object for speed.
-
-2004-09-30  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c (Tcl_CreateInterp):
-	* generic/tclInt.h (Interp): Removed the flag bit value
-	EXPR_INITIALIZED. It was set during interp creation and never tested.
-	Whatever purpose it had is in the past.
-
-	* generic/tclBasic.c (Tcl_EvalObjEx):	Removed the flag bit value
-	* generic/tclInt.h (Interp):	        USE_EVAL_DIRECT. It was used
-	* generic/tcLTest.c (TestevalexObjCmd): only in the testing command
-	* tests/parser.test (parse-9.2):        [testevalex] and nothing in
-	the test suite made use of the capability it enabled.
-
-	* generic/tclBasic.c (Tcl_AddObjErrorInfo): More re-organization
-	* generic/tclCmdAH.c (Tcl_ErrorObjCmd):	    of the management of
-	* generic/tclCmdMZ.c (TclProcessReturn):    the errorCode value.
-	* tests/error.test (error-6.4-9):
-
-	* generic/tclNamespace.c (TclTeardownNamespace): Tcl_Obj-ified
-	* tests/namespace.test (namespace-8.5,6):	 the save/restore of
-	::errorInfo and ::errorCode during global namespace teardown. Revised
-	the comment to clarify why this is done, and added tests that will
-	fail if this is not done.
-
-	* generic/tclResult.c (TclTransferResult): Added safety checks so that
-	unexpected undefined ::errorInfo or ::errorCode will not lead to a
-	segfault.
-
-	* generic/tclTrace.c (TclCallVarTraces):  Save/restore the flag values
-	* tests/var.test (var-16.1):	          that define part of the
-	interpreter state during variable traces. [Bug 1038021].
-
-2004-09-30  Miguel Sofer <msofer@users.sf.net>
-
-	* tests/subst.test (12.1-2): added tests for [Bug 1036649]
-
-2004-09-29  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/basic.test (49.*): New tests for TCL_EVAL_GLOBAL.
-
-2004-09-29  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclVar.c (TclObjLookupVar, TclObjLookupVar):
-	(TclObjUnsetVar2, SetArraySearchObj):
-	* generic/tclUtil.c (SetEndOffsetFromAny):
-	* generic/tclStringObj.c (Tcl_SetStringObj):
-	(Tcl_SetUnicodeObj, SetStringFromAny):
-	* generic/tclResult.c (ResetObjResult):
-	* generic/tclRegexp.c (Tcl_GetRegExpFromObj):
-	* generic/tclPathObj.c (TclFSMakePathRelative, SetFsPathFromAny):
-	(TclFSMakePathFromNormalized, Tcl_FSNewNativePath):
-	* generic/tclObj.c (TclFreeObj, Tcl_SetBooleanObj, SetBooleanFromAny):
-	(Tcl_SetDoubleObj, SetDoubleFromAny, Tcl_SetIntObj):
-	(SetIntOrWideFromAny, Tcl_SetLongObj, SetWideIntFromAny):
-	(Tcl_SetWideIntObj, TclSetCmdNameObj, SetCmdNameFromAny):
-	* generic/tclNamesp.c (SetNsNameFromAny, MakeCachedEnsembleCommand):
-	* generic/tclListObj.c (Tcl_SetListObj, SetListFromAny):
-	* generic/tclIndexObj.c (Tcl_GetIndexFromObjStruct):
-	* generic/tclDictObj.c (SetDictFromAny):
-	* generic/tclCompile.c (TclInitByteCodeObj):
-	* generic/tclBinary.c (Tcl_SetByteArrayObj, SetByteArrayFromAny):
-	* generic/tclInt.h (TclFreeIntRep): Factorize out deletion of object
-	internal representation to a shared macro, so simplifying much code.
-
-2004-09-27  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclBasic.c (TclObjInvoke): fix for bogus gcc warning about
-	uninitialised variable.
-
-2004-09-27  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Removed internal routines TclInvoke,
-	* generic/tclInt.decls: TclGlobalInvoke, TclObjInvokeGlobal and the
-	* tests/basic.test:	portion of TclObjInvoke that handles calls
-	without TCL_INVOKE_HIDDEN enabled. None of this code is called any
-	longer within the core, and the superior public interface,
-	Tcl_EvalObjv, is available for any external callers.
-
-	* generic/tclIntDecls.h:	make genstubs
-	* generic/tclStubInit.c:
-
-	* generic/tclEvent.c (HandleBgErrors): Updated [bgerror] invocations
-	to make use of Tcl_Obj based routines, dropping the calls to
-	TclGlobalInvoke()
-
-2004-09-27  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFileName.c:
-	* generic/tclFileSystem.h:
-	* generic/tclIOUtil.c:
-	* generic/tclPathObj.c:
-	* tests/cmdAH.test:
-	* tests/fileSystem.test:
-	* tests/winFCmd.test: fix to bad error message with 'cd' on windows,
-	when permissions are inadequate [Bug 1035462] and to treatment of a
-	volume-relative pwd on Windows [Bug 1018980].
-
-	* doc/FileSystem.3: added missing Tcl_GlobTypeData documentation [Bug
-	935853]
-
-2004-09-27  Kevin Kenny	 <kennykb@acm.org>
-
-	* compat/strftime.c (Removed):
-	* generic/tclClock.c (removed TclClockOldscanObjCmd):
-	* generic/tclDate.c (Regenerated):
-	* generic/tclGetDate.y:
-	* generic/tclInt.decls (removed TclGetDate and TclpStrftime):
-	* generic/tclInt.h (removed TclGetDateInfo):
-	* generic/tclIntDecls.h (Regenerated):
-	* generic/tclStubInit.c (Regenerated):
-	* library/clock.tcl:
-	* unix/tclUnixTime.c (removed TclpStrftime):
-	* win/Makefile.in:
-	* win/makefile.bc:
-	* win/makefile.bc:
-	* win/tcl.dsp:
-	Continued refactoring of [clock] for TIP 173 changes. Broke the
-	free-form parser apart so that the Bison parser is responsible for
-	only parsing, while clock.tcl handles relative times like "next
-	Thursday", "next January". This change is needed to make timezones
-	other than :localtime and :Etc/UTC work with free-form scanning. This
-	change closes out the issue identified as being "for another day" in
-	my log message of 2004-09-08. The refactored code also eliminates the
-	last known references to TclpStrftime and TclGetDate, so those
-	routines (including compat/strftime.c) have been removed. The
-	refactoring also has the benefit that all storage in the Bison parser
-	is now on the C stack, eliminating any need for mutex protection
-	around [clock scan]. Also, changed the Makefiles so that 'make
-	gendate' is available on Windows as well as Unix.
-
-	* generic/tclCmdAH.c (Tcl_FormatObjCmd): Removed some grubby
-	* generic/tclObj.c (SetBooleanFromAny):	 work-around code that was
-	needed only because of Bug 868489.
-
-	* generic/tclBasic.c (TclObjInvoke): Removed three unused variables to
-	silence a compiler warning in VC++.
-
-2004-09-27  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* doc/FileSystem.3: fix to small typo.
-
-2004-09-26  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompCmds.c:
-	* generic/tclCompExpr.c:
-	* generic/tclCompile.c:
-	* generic/tclCompile.h:
-	* generic/tclInt.h:
-	* generic/tclProc.c:
-	* tests/compExpr-old.test:
-	* tests/compExpr.test:
-	* tests/expr.test:
-	* tests/for.test:
-	* tests/if.test:
-	* tests/incr.test:
-	* tests/while.test:
-	Report compilation errors at runtime, [Patch 1033689] by dgp.
-
-2004-09-23  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/dltest/Makefile.in (clean): Fixup make clean rule so that it
-	does not delete all files when SHLIB_SUFFIX is set to the empty string
-	in a static build. [Bug 1016726]
-
-2004-09-23  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Corrections to the 2004-09-21 commit
-	* generic/tclExecute.c:	regarding ERR_ALREADY_LOGGED. That commit
-	* generic/tclNamesp.c:	caused Tk test send-10.7 to fail. Added
-	* tests/namespace.test (25.7,8): tests in the Tcl test suite
-	* tests/pkg.test (2.25,26):	 to catch this error without the aid
-	of Tk in the future.
-
-	* generic/tclCmdAH.c (Tcl_ExprObjCmd):	Simplified the TclObjCmdProc
-	of [expr] with a call to Tcl_ConcatObj.
-
-2004-09-22  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c (TclProcessReturn):	Support the -errorline
-	* generic/tclCompile.c (TclCompileScript):	option to [return].
-	* tests/compile.test (16.23.*):	Use that capability to defer reporting
-	* tests/misc.test (1.2):	of parse errors until runtime. Updated
-	tests to reflect change. [Bug 1032805]
-
-2004-09-22  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclExecute.c (INST_START_CMD):
-	* tests/proc.test (7.2-3): fix for [Bug 729692] was incorrect whenever
-	a loop exception was returned.
-
-2004-09-22  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata/America/Montevideo: Updated to reflect
-	ftp://elsie.nci.nih.gov/pub/tzdata2004d.tar.gz. (Changes to
-	Asia/Jerusalem were in the comments only.) [Routine maintenance - no
-	bug] Spanish-language description of the change at
-	http://www.presidencia.gub.uy/decretos/2004091502.htm
-
-2004-09-21  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompCmds.c:	Tolerate [append] syntax errors
-	* tests/appendComp.test (8.1):	at compile time, and allow runtime to
-	raise the error (or succeed if a redefined [append] allows).
-
-	* generic/tclBasic.c:	Reworked management of the interp flag
-	* generic/tclCompile.c:	ERR_ALREADY_LOGGED, to reduce its exposure.
-	* generic/tclExecute.c: Still left several referebces that are just
-	* generic/tclNamesp.c:	too nice on performace to do away with.	These
-	changes also resolve an inconsistency in the ::errorInfo values
-	produced by [namespace eval x error foo bar] and [namespace eval x
-	{error foo bar}].
-
-	* generic/tclExecute.c (TclCompEvalObj):	Simplified the
-	TclCompEvalObj routine. Much housekeeping now reliably happens
-	elsewhere. [Patch 1031949]
-
-2004-09-21  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/interp.n: Tighten up wording on how [interp eval] and [interp
-	invokehidden] operate w.r.t. stack frames. [Bug 926590]
-
-2004-09-20  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/error.test (error-6.2,3):	Added more tests to verify
-	::errorCode setting by/after a [catch].
-
-2004-09-19  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCmdAH.c: removed outdated comment [Bug 1029518].
-
-2004-09-18  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclAppInit.c: Dde package can load into a safe interp. Claim
-	this fact for the Tcl_StaticPackage() call when the shell is built
-	with the TCL_USE_STATIC_PACKAGES option.
-
-2004-09-18  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclExecute.c (TEBC-INST_LSHIFT,INST_RSHIFT): Ensure that
-	large shifts end up shifting correctly. [Bug 868467]
-
-	* doc/FileSystem.3, doc/OpenFileChnl.3: More documentation fixes from
-	Mikhail Kolesnitchenko. [Patch 1022527]
-	* doc/*: Standardize highlighting of symbols defined in tcl.h
-
-2004-09-17  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c (Tcl_AddObjErrorInfo, Tcl_LogCommandInfo):
-	* generic/tclCmdAH.c ([catch], [error]):
-	* generic/tclCmdMZ.c ([return]):
-	* generic/tclProc.c (TclUpdateReturnInfo):
-	* generic/tclResult.c (Tcl_SetErrorCodeVA, Tcl_SetObjErrorCode)
-	(TclTransferResult):	Refactored so that all errorCode setting flows
-	through Tcl_SetObjErrorCode(). This greatly reduces the number of
-	different places in the code that need to know details about an
-	internal bitflag field of the Interp struct. Also places errorCode
-	setting in one place for easier future mods.
-
-2004-09-17  Kevin B.Kenny  <kennykb@acm.org>
-
-	* generic/tclDate.c:	Revised tclGetDate.y to use bison instead of
-	* generic/tclGetDate.y: yacc to build the parser, eliminating all the
-	* generic/tclInt.h:	complicated hackery involving 'sed'
-	* unix/Makefile.in:	postprocessing. Rebuilt the parser.
-
-2004-09-14  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclClock.c (ClockOldscanObjCmd): Silenced a compiler warning
-	(long passed as a param where unsigend long was expected). 'Unsigned
-	long' is wrong, but the fix is really to change the signature of
-	TclGetDate to return a structure of its 'yy' variables and then do the
-	remaining work inside clock.tcl. But, as I said on 2004-09-08, that's
-	a job for another day. [Bug 1027993]
-
-2004-09-10  Miguel Sofer <msofer@users.sf.net>
-
-	* doc/interp.n:
-	* generic/tclInterp.c (TclPreventAliasLoop, AliasCreate):
-	* tests/interp.test (17.4-6, 19.3-4): fixing problems with renaming of
-	aliases [Bugs 707104 1026493]. Fix designed by dgp.
-
-2004-09-13  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclNamesp.c (NsEnsembleImplementationCmd): Add token field
-	to internal rep of EnsembleCmdRep structure so that we can check it to
-	see if the subcommand object is really being used with the same
-	ensemble. [Bug 1026903]
-
-2004-09-11  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclClock.c (TclMktimeObjCmd): Corrected a bad check for
-	error return from 'mktime'.
-	* generic/tclObj.c (Tcl_GetIntFromObj): Corrected a problem where
-	demoting a wide to an int failed on a big-endian machine. [Bug
-	1026125].
-	* tests/clock.test (clock-43.1): Added regression test for error
-	return from 'mktime'.
-
-2004-09-11  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclExecute.c (INST_CONCAT1): fix for [Bug 1025834]; avoid
-	unnecessary string copies.
-
-2004-09-10  David Gravereaux <davyrgvy@pobox.com>
-
-	* tests/tcltest.test: tcltest-12.3-4 needed to have
-	::tcltest::loadScript set to empty in their -setup
-
-2004-09-10  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclObj.c (SetIntOrWideFromAny): Rewritten integral value
-	parsing code so that values do not flip so easily between numeric
-	representations. Thanks to KBK for this! [Bug 868489]
-
-	* generic/tclIO.c (Tcl_Seek): Make sure wide seeks do not fail to set
-	::errorCode on error. [Bug 1025359]
-
-2004-09-10  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tcl.h: Micro formatting fixes.
-	* generic/tclIOGT.c: Channel version fixed, must be 3, to have
-	wideseekProc. Thanks to David Graveraux <davygrvy@pobox.com>.
-
-2004-09-11  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclNamespace.c (TclGetNamespaceForQualName): Resolved
-	longstanding inconsistency in the treatment of the TCL_NAMESPACE_ONLY
-	flag revealed by testing the 2004-09-09 commits against Itcl.
-	TCL_NAMESPACE_ONLY now acts as specified in the pre-function comment,
-	forcing resolution in the passed in context namespace. It has been
-	incorrectly forcing resolution in the interp's current namespace.
-
-2004-09-10  Kevin Kenny	 <kennykb@acm.org>
-
-	* library/clock.tcl: Fixed a bug where %z always put a plus sign on
-	the time zone in :localtime.
-	* tests/clock.test: Added test case for the above bug.
-
-2004-09-10  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclExecute.c (INST_CONCAT1): added a peephole optimisation
-	for concatting an empty string. This enables replacing the idiom 'K $x
-	[set x {}]' by '$x[set x {}]' for fastest execution.
-
-2004-09-09  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinConsole.c: Calls to WriteFile and WriteConsoleA changed to
-	WriteConsole for simplicity.
-
-2004-09-09  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclNamesp.c (Tcl_ForgetImport):	Corrected faulty
-
-	* tests/namespace.test: logic that relied exclusively on string
-	matching and failed in the presence of [rename]s. [Bug 560297] Also
-	corrected faulty prevention of [namespace import] cycles. [Bug 1017299]
-
-2004-09-08  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c (Tcl_CreateInterp):	Removed obsolete field
-	for storing the string-based command procedure of built-in commands.
-	We no longer have any string-based built-in commands!
-
-2004-09-08  Kevin B. Kenny <kennykb@acm.org>
-
-	* compat/strftime.c (_conv): Corrected a problem where hour 0 would
-	format as a blank format group with %k.
-	* doc/clock.n: Corrected a buglet in the header information. [Bug
-	1024058]
-	* generic/tclClock.c (TclClockMktimeObjCmd): Fixed a bug where the
-	month was scanned incorrectly in -timezone :localtime.
-	* tests/clock.test (clock-34.*,clock-40.1, clock-41.1): Adjusted the
-	clock-34.* test cases so that the consistency check is performed in
-	:localtime rather than the current time zone. This change allows
-	dealing with issues where the C library has a different idea of DST
-	conversion than Tcl. (Real fix would be to break TclGetDate into
-	separate parser and time converter, and do the time conversion in
-	clock.tcl. That's for another day.) Added regression test case for the
-	bug where month was scanned incorrectly in -timezone :localtime. [Bug
-	1023779] Added regression test case for %k at the zero hour.
-
-2004-09-07  David Gravereaux <davygrvy@pobox.com>
-
-	* win/makefile.vc: some quoting needed to be removed as it was
-	breaking with VC7. [Bug 1023150]
-
-2004-09-07  Kevin B. Kenny  <kennykb@acm.org>
-
-	* doc/clock.n: Documented the default -format, and changed references
-	to a (nonexistent) msgcat command to refer to the msgcat package. [Bug
-	1023870]
-	* generic/tclTimer.c: Removed a premature optimisation that attempted
-	to store the assoc data in the client data; the optimisation caused a
-	bug that [after] would overwrite its imports. [Bug 1016167]
-	* library/clock.tcl (InitTZData, ClearCaches): Changed so that the
-	in-memory time zone :UTC (and its aliases) always gets reinitialised,
-	in case tzdata is absent. [Bug 1019537, 1023779]
-	* library/tzdata/*: Regenerated.
-	* tests/clock.test (clock-31.*, clock-39.1): Corrected a problem where
-	the 'system' locale tests fail on a non-English Windows machine. [Bug
-	1023761]. Added a test to make sure that alias time zones load
-	correctly. [Bug 1023779].
-	* tests/timer.test (timer-1.1, timer-2.1): Changed to (one hopes!) be
-	more resilient on an overloaded system, if [after 200] sleeps for 300
-	ms or longer.
-	* tools/tclZIC.tcl (writeLinks): Corrected a problem where alias time
-	zone names were written incorrectly, causing them to fail to load at
-	run time. [Bug 1023779].
-	* win/tclWinTime.c (Tcl_GetTime): Eliminated CPUID tests on Win64 -
-	assuming that HAL vendors now do a better job of keeping the
-	performance counters synchronized among CPU's. [Bug 1020445]
-
-2004-09-06  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/tclvars.n, doc/tcltest.n, doc/tclsh.1, doc/safe.n, doc/expr.n
-	* doc/WrongNumArgs.3, doc/Utf.3, doc/TraceVar.3, doc/Thread.3
-	* doc/TCL_MEM_DEBUG.3, doc/SubstObj.3, doc/StdChannels.3
-	* doc/SetResult.3, doc/RegExp.3, doc/RegConfig.3, doc/RecEvalObj.3
-	* doc/PrintDbl.3, doc/ParseCmd.3, doc/Panic.3, doc/ObjectType.3
-	* doc/Object.3, doc/Namespace.3, doc/Interp.3, doc/IntObj.3
-	* doc/Hash.3, doc/GetOpnFl.3, doc/GetIndex.3, doc/Eval.3
-	* doc/Encoding.3, doc/DoubleObj.3, doc/DictObj.3, doc/CrtTimerHdlr.3
-	* doc/CrtObjCmd.3, doc/CrtMathFnc.3, doc/CrtCommand.3, doc/CrtChannel.3
-	* doc/ChnlStack.3, doc/ByteArrObj.3, doc/AssocData.3, doc/Alloc.3:
-	More documentation fixes from Mikhail Kolesnitchenko. [Patch 1022527]
-
-2004-09-03  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* unix/tclUnixFCmd.c: Stop NULL interp arguments from triggering a
-	crash when an error happens. [Bug 1020538]
-
-2004-09-02  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/lsearch.n: Clarified meaning of -dictionary. [Bug 759545]
-
-2004-09-02  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* win/makefile.vc: clock.tcl needs to be installed.
-
-2004-09-01  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* win/tclWinReg.c (BroadcastValue): WIN64 cast corrections
-
-	* win/tclWinDde.c (DdeClientWindowProc):
-	(DdeServicesOnAck, DdeEnumWindowsCallback): WIN64 corrections
-
-	* win/tclWin32Dll.c (TclWinCPUID): need _asm for WIN64 (Itanium),
-	until we have it, just return unknown. [Bug 1020445]
-
-2004-09-01  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/regsub.n, doc/RegConfig.3, doc/Environment.3:
-	* doc/CrtChannel.3, doc/safe.n: Use correct abbreviations.
-
-2004-08-31  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/trace.n, doc/socket.n, doc/registry.n, doc/pid.n:
-	* doc/namespace.n, doc/msgcat.n, doc/lsort.n, doc/lsearch.n:
-	* doc/linsert.n, doc/info.n, doc/http.n, doc/history.n:
-	* doc/format.n, doc/file.n, doc/exec.n, doc/dde.n, doc/clock.n:
-	* doc/catch.n, doc/binary.n: More spelling and grammar fixes from
-	Mikhail Kolesnitchenko. [Patch 1018486]
-
-2004-08-31  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* doc/FileSystem.3:
-	* generic/tclIOUtil.c: Clarified documentation regarding ability of a
-	filesystem to say that it doesn't support a given operation using the
-	EXDEV posix error code (copyFileProc, renameFileProc, etc), and
-	updated one piece of code to ensure correct behaviour when an
-	operation is not supported [Bug 1017072]
-
-	* tests/fCmd.test: fix to test suite problem [Bug 1002884]
-
-2004-08-31  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/Makefile.in (install-libraries): portable sh fix.
-
-2004-08-30  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd): Stop [string map] from
-	crashing when its map and input string are the same object.
-
-2004-08-27  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclNamesp.c (FindEnsemble): Factor out the code to convert a
-	command name into an ensemble configuration and add support for
-	ignoring [namespace import] link chains. [Bug 1017022]
-	(NamespaceWhichCmd): Rework to use newer option parsing API.
-
-2004-08-27  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/Makefile.in: added customization of default module path roots
-	via TCL_MODULE_PATH makefile variable.
-	* macosx/Makefile: add platform standard locations to default module
-	path roots. [Patch 942881]
-
-	* tests/env.test: macosx fixes.
-
-2004-08-25  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/timer.test (timer-10.1):	Test for Bug 1016167.
-	* generic/tclTimer.c: Workaround for situation when a [namespace
-	import] causes the objv[0] value to be something other than what
-	Tcl_AfterObjCmd expects. [Bug 1016167].
-
-2004-08-25  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclNamesp.c (NsEnsembleImplementationCmd): Use the ensemble
-	command token to get the name of the ensemble for passing to the
-	-unknown handler instead of relying on objv[0], which may contain
-	useless info in the presence of [namespace import]. Problem found by
-	Don Porter when investigating [Bug 1016167].
-
-2004-08-24  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclProc.c:		The routine TclProcInterpProc was a
-	* generic/tclTestProcBodyObj.c: specific instance of the general
-	service already provided by TclObjInvokeProc. Removed
-	TclProcInterpProc and TclGetInterpProc from the code...
-
-	* generic/tclInt.decls:	...and from the internal stubs table.
-	* generic/tclIntDecls.h
-	* generic/tclStubInit.c
-
-2004-08-24  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/string.n: Added clarifying note.
-
-2004-08-23  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/auto.tcl:	Updated [tcl_findLibrary] search path to
-	include any [<pkg>::pkgconfig get scriptdir,runtime] directory, as
-	well as the $::auto_path. [RFE 695441]
-
-2004-08-21  Kevin B. Kenny  <kennykb@acm.org>
-
-	* tests/clock.test (clock-38.1): Changed TZ setting to specify CET in
-	excruciating detail to deal with systems that lack the Posix defaults
-	for DST changes (and to be formally correct with the change dates for
-	CET).
-
-2004-08-19  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclScan.c (Tcl_ScanObjCmd, ValidateFormat): Ensure that the
-	%ld conversion works correctly on 64-bit platforms. [Bug 1011860]
-
-2004-08-19  Kevin Kenny	 <kennykb@acm.org>
-
-	* library/clock.tcl (format): Changed default timezone format from
-	alphabetic to numeric to produce scannable times in more locales.
-	* tests/clock.test (clock-37.1): Removed now-unused 'needPST'
-	constraint and the comments that refer to it.
-
-2004-08-18  Andreas Kupries  <andreask@activestate.com>
-
-	* library/init.tcl: Integrated TIP #189. We source a separate file
-	(see below), instead of inlining the contents of that file. This
-	should beeasier to maintain, and easier to backport/install in 8.4
-	installations.
-
-	Note: Usage of Tcl Modules is restricted to non-safe interps. It
-	cannot be loaded into a safe interp.
-
-	* library/tm.tcl: New file, the v2 reference implementation for TIP
-	#189, Tcl Modules.
-
-	* doc/tm.n: New file, documentation for Tcl Modules, based on the TIP.
-
-	* unix/mkLinks: Regenerated.
-	* win/makefile.vc: Added tm.tcl to list of files to install.
-
-2004-08-18  Kevin Kenny	 <kennykb@acm.org>
-
-	* tests/httpd (httpdRespond): Corrected an abuse of the [clock]
-	command that caused test failures for some values of [clock clicks].
-
-	* doc/clock.n
-	* generic/tclBasic.c (Tcl_CreateInterp, Tcl_HideUnsafeCommands):
-	* generic/tclClock.c (all):
-	* generic/tclInt.h:
-	* generic/tclInterp.c (CreateSlave):
-	* library/clock.tcl: (new file)
-	* library/init.tcl (clock):
-	* library/msgs/*.msg:(new files)
-	* library/tzdata/*:
-	* library/tzdata/*/*:
-	* library/tzdata/*/*/*: (new files)
-	* tools/installData.tcl: (new file)
-	* tools/loadICU.tcl: (new file)
-	* tools/makeTestCases.tcl: (new file)
-	* tools/tclZIC.tcl: (new file)
-	* unix/Makefile.in:
-	* unix/configure: (regenerated)
-	* unix/tcl.m4:
-	* tests/clock.test (all):
-	* win/Makefile.in:
-	* win/Makefile.vc:
-		Implementation of TIPs #173 and #209.
-
-	The [clock] command is now a Tcl ensemble, with most of its
-	functionality written in Tcl and callouts to C code only to access
-	low-level functions such as localtime, mktime and tzset.
-
-	In addition to the functionality changes called out in the two TIPs,
-	it is worth noting that the [clock] command in a safe slave
-	interpreter is now an alias to the [clock] command in the master, and
-	that [clock] is otherwise not expected to function entirely correctly
-	in safe interps. C code that simply does Tcl_MakeSafe needs to be
-	aware that [clock] may need special handling. (It appears unlikely
-	that such code actually exists.)
-
-	One incompatibility of note is that if the time zone cannot be
-	determined from the TZ, TCL_TZ environment variables, or from the
-	Windows control panel, so that the C library must be used for date and
-	time conversions, then times outside the range of time_t will fail;
-	they used to return bad data silently.
-
-	Many thanks to all the many people who assisted with testing,
-	debugging, criticism of the specification, and localisation. Deserving
-	of particular mention are Joe English, Clif Flynt, Donal K. Fellows,
-	Jeff Hobbs, Cameron Laird, Arjen Markus, Reinhard Max, Christopher
-	Nelson, Steve Offutt, Donald G. Porter, Pascal Scheffers, Peter da
-	Silva and Richard Suchenwirth-Bauersachs.
-
-	*** POTENTIAL INCOMPATIBILITY ***
-
-2004-08-16  Miguel Sofer <msofer@users.sf.net>
-
-	* doc/SetVar.3:
-	* generic/tclTest.c (TestseterrorcodeCmd):
-	* generic/tclVar.c (TclPtrSetVar):
-	* tests/result.test (result-4.*, result-5.*): [Bug 1008314] detected
-	and fixed by dgp.
-
-2004-08-13  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/msgcat/msgcat.tcl:	Added checks to prevent [mclocale]
-	* tests/msgcat.test:	from registering filesystem paths to possibly
-	malicious code to be evaluated by a later [mcload].
-
-2004-08-10  Zoran Vasiljevic <vasiljevic@users.sf.net>
-
-	* unix/tclUnixThrd.c (TclpThreadCreate): changed handling of the
-	returned thread ID since broken on 64-bit systems (Cray). Thanks to
-	Rob Ratcliff for reporting the bug.
-
-2004-08-03  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclNamesp.c (MakeCachedEnsembleCommand): Initialize the
-	epoch field cached in the subcommand. [Bug 989298]
-	(NsEnsembleImplementationCmd): Plug a leak (thanks to Miguel Sofer for
-	spotting it with valgrind) and reduce the number of goto labels to
-	make the code clearer.
-
-2004-08-02  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/package.tcl (pkg_mkIndex):	Updated [pkg_mkIndex] to make
-	use of [glob -directory $dir -tails] and return options.
-
-	TIP#207 IMPLEMENTATION
-
-	* doc/interp.n:		Added support for a -namespace option to the
-	* generic/tclBasic.c:	[interp invokehidden] command.	Also added an
-	* generic/tclInt.h:	internal routine TclObjInvokeNamespace() and
-	* generic/tclInterp.c:	corrected the flag names TCL_FIND_ONLY_NS and
-	* generic/tclNamesp.c:	TCL_CREATE_NS_IF_UNKNOWN that are passed to the
-	* generic/tclTrace.c:	internal routine TclGetNamespaceForQualName().
-	* tests/interp.test:	[Patch 981841]
-
-	* generic/tclLiteral.c (TclCleanupLiteralTable):	Corrected
-	* tests/compile.test (compile-12.4):	flawed deletion of literal
-	internal reps that could lead to accessing of freed memory. Thanks to
-	Kevin Kenny for test case and fix [Bug 1001997].
-
-2004-07-30  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/safe.test (safe-2.1):  Disabled senseless test.	 [Bug 999612]
-
-	* library/auto.tcl (auto_reset):  Removed "protected" list of commands
-	from [auto_reset]. All entries in the auto_index can be re-loaded.
-	* library/package.tcl: Updated comment to reflect 2004-07-28 commit.
-
-	* generic/tclEvent.c (Tcl_Finalize):	Re-organized Tcl_Finalize so
-	that Tcl_ExitProc's that call Tcl_Finalize recursively do not cause
-	deadlock. [Patch 999084 fixes Tk Bug 714956]
-
-2004-07-30  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/configure:
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): Darwin: instead of setting PLAT_OBJS
-	to explict object files in tcl.m4, refer to MAC_OSX_OBJS makefile var.
-	* unix/Makefile.in: added MAC_OSX_OBJS variable.
-
-2004-07-29  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/package.tcl: [::pkg::create] is now an alias. Test safe-2.1
-	will now fail until Bug 999612 is corrected.
-
-2004-07-28  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/package.tcl:		Moved private command
-	* library/tclIndex:		[pkg_compareExtension] into ::tcl::Pkg.
-	* tests/pkg_mkIndex.test:	Also moved implementation of
-	[::pkg::create] to [::tcl::Pkg::Create].
-
-2004-07-25  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* tests/io.test: Make io-61.1 create file as binary to pass on Win32
-
-2004-07-23  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclVar.c: simplify tclLocalVarNameType, removing the
-	reference to the corresponding proc. The reference is now seen as
-	unnecessary, and it may cause leaking circular references under some
-	circumstances (see for example [Bug 994838]).
-
-2004-07-22  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/eofchar.data (removed): Test io-61.1 now generates its own
-	* tests/io.test:	file of test data as needed.
-
-2004-07-20  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclEvent.c:	    Correct threaded obj allocator to
-	* generic/tclInt.h:	    fully cleanup on exit and allow for
-	* generic/tclThreadAlloc.c: reinitialization. [Bug 736426]
-	* unix/tclUnixThrd.c:	    (mistachkin, kenny)
-	* win/tclWinThrd.c:
-
-2004-07-21  Kevin Kenny	 <kennykb@acm.org>
-
-	* generic/tclBasic.c (DeleteInterpProc):
-	* generic/tclLiteral.c (TclCleanupLiteralTable):
-	* generic/tclInt.h: added a TclCleanupLiteralTable function, called
-	from DeleteInterpProc, that frees internal representations of shared
-	literals early when an interpreter is being deleted. This change
-	corrects a number of memory mismanagement issues in the cases where
-	the internal representation of one literal contains a reference to
-	another, and avoids conditions such as resolved variable names
-	referring to procedure and namespace contexts that no longer exist.
-	[Bug 994838]
-
-2004-07-20  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/Makefile.in:
-	* win/Makefile.in: added 'install-private-headers' makefile target to
-	allow optionally installing private tcl headers. [FR 922727]
-
-	* macosx/Makefile: use new 'install-private-headers' target to install
-	private headers into framework. [FR 922727]
-
-	* unix/tclUnixFile.c (NativeMatchType): added support for readonly
-	matching of user immutable files (where available).
-
-	* macosx/tclMacOSXBundle.c: dynamically acquire address for
-	CFBundleOpenBundleResourceMap symbol, since it is only present in full
-	CoreFoundation on Mac OS X and not in CFLite on pure Darwin.
-
-2004-07-19  Zoran Vasiljevic <vasiljevic@users.sf.net>
-
-	* win/tclwinThrd.c: redefined MASTER_LOCK to call TclpMasterLock.
-	Fixes [Bug 987967]
-
-2004-07-17  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclIOUtil.c: fix to rare 'cd' infinite loop in normalization
-	with vfs [Bug 991420].
-	* tests/fileSystem.test: added test for above bug.
-
-	* doc/FileSystem.3: clarified documentation of posix error codes in
-	'remove directory' FS proc - 'EEXIST' is used to signify a non-empty
-	directory error (bug reported against tclvfs).
-
-2004-07-16  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* unix/Makefile.in, unix/tcl.m4:     move (C|LD)FLAGS after their
-	* unix/configure.in, unix/configure: _DEFAULT to allow for env setting
-	to override m4 switches. Move SC_MISSING_POSIX_HEADERS up and
-	consolidate calls to limit redundancy in configure.
-	(CFLAGS_WARNING): Remove -Wconversion
-	(SC_ENABLE_THREADS): Set m4 to force threaded build when built against
-	a threaded Tcl core.
-
-2004-07-16  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIOCmd.c (Tcl_FcopyObjCmd): Corrected a typo in the
-	generation of error messages and simplified by reusing data in a
-	variable instead of retrieving the string again. Fixes [Bug 835289].
-
-	* doc/OpenFileChnl.3: Added description of the behaviour of
-	Tcl_ReadChars when its 'charsToRead' argument is set to -1. Fixes [Bug
-	934511].
-
-	* doc/CrtCommand.3: Added note that the arguments given to the command
-	proc of a Tcl_CreateCommand are in utf8 since Tcl 8.1. Closing [Patch
-	414778].
-
-	* doc/ChnlStack.3: Removed the declaration that the interp argument to
-	Tcl_(un)StackChannel can be NULL. This fixes [Bug 881220], reported by
-	Marco Maggi <marcomaggi@users.sourceforge.net>.
-
-	* tests/socket.test: Accepted two new testcases by Stuart Casoff
-	<stwo@users.sourceforge.net> checking that -server and -async don't go
-	together [Bug 796534].
-
-	* unix/tclUnixNotfy.c (NotifierThreadProc): Accepted Joe Mistachkin's
-	patch for [Bug 990500], properly closing the notifier thread when its
-	exits.
-
-2004-07-15  Andreas Kupries  <andreask@activestate.com>
-
-	* unix/tclUnixThrd.c (TclpFinalizeMutex): Accepted Joe Mistachkin's
-	patch for [Bug 990453], closing leakage of mutexes. They were not
-	destroyed properly upon finalization.
-
-2004-07-15  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.h (CHANNEL_INCLOSE):	   New flag. Set in
-	* generic/tclIO.c (Tcl_UnregisterChannel): 'Tcl_Close' while the
-	* generic/tclIO.c (Tcl_Close):		   close callbacks are
-	run. Checked in 'Tcl_Close' and 'Tcl_Unregister' to prevent recursive
-	call of 'close' in the close-callbacks. This is a possible error made
-	by implementors of virtual filesystems based on 'tclvfs', thinking
-	that they have to close the channel in the close handler for the
-	filesystem.
-
-2004-07-14  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c:
-	* generic/tclIO.h:
-	* Not reverting, but #ifdef'ing the changes from May 19, 2004 out of
-	the core. This removes the ***POTENTIAL INCOMPATIBILITY*** for channel
-	drivers it introduced. This has become possible due to Expect gaining
-	a BlockModeProc and now handling blockingg and non-blocking modes
-	correctly. Thus [SF Tcl Bug 943274] is still fixed if a recent enough
-	version of Expect is used.
-
-	* doc/CrtChannel.3: Added warning about usage of a channel without a
-	BlockModeProc.
-
-2004-07-15  Andreas Kupries  <andreask@pliers.activestate.com>
-
-	* generic/tclIOCmd.c (Tcl_PutsObjCmd): Added length check to the old
-	depreceated newline syntax, to ensure that only "nonewline" is
-	accepted. [Tcl SF Bug 985869], reported by Joe Mistachkin
-	<mistachkin@users.sourceforge.net>.
-
-2004-07-15  Zoran Vasiljevic <vasiljevic@users.sf.net>
-
-	* generic/tclEvent.c (Tcl_Finalize): stuffed memory leak incurred by
-	re-initializing of TSD slots after the last call to
-	TclFinalizeThreadData (done from within Tcl_FinalizeThread()). We
-	basically just repeat the TclFinalizeThreadData() once more before
-	tearing down TSD keys in TclFinalizeSynchronization(). There should be
-	more elaborate mechanism in place for handling such issues, based on
-	thread cleanup handlers registered on the OS level. Such change
-	requires much more work and would also require TIP because some
-	visible parts of Tcl API would have to be modified. In the meantime,
-	this will do.
-
-	* generic/tclNotify.c (TclFinalizeNotifier): Added conditional
-	notifier finalization based on the fact that an TclInitNotifier has
-	been called for the current thread. This fixes the [Bug 770053] again.
-	Hopefully this time w/o unwanted side-effects.
-
-2004-07-15  Kevin Kenny	 <kennykb@acm.org>
-
-	* generic/tclLiteral.c (TclReleaseLiteral): Removed unused variable
-	'codePtr' to silence a message from VC++.
-
-2004-07-15  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompile.c (TclCompileScript):
-	* generic/tclLiteral.c (TclReleaseLiteral): fix for [Bug 467523],
-	which resurfaced with the latest changes. The previous strategy was to
-	have special code in TclReleaseLiteral to handle the self-references
-	generated by empty scripts. The new approach avoids the self-reference
-	altogether, by having empty scripts return an unshared literal.
-
-2004-07-15  Zoran Vasiljevic <vasiljevic@users.sf.net>
-
-	* generic/tclEvent.c (NewThreadProc): Backout of changes to fix the
-	[Bug 770053]. See SF bugreport for more info.
-
-2004-07-11  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclBasic.c (Tcl_EvalEx): leak fix by dgp, release
-	objv[objectsUsed] on error.
-
-2004-07-11  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclParse.c (Tcl_SubstObj): leak fix by dgp, release result
-	on error.
-
-2004-07-11  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclNamesp.c (BuildEnsembleConfig): Don't forget to clean out
-	references when deleting the hash table.
-	* generic/tclDictObj.c (Tcl_DictObjRemoveKeyList): Oops, forgot to
-	delete value object when removing the hash entry. [Bug 989093 in part]
-
-2004-07-11  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclExecute.c (TEBC): fixed leak of expandNestList objs when
-	there is an error while an expansion is in progress (code added at
-	checkForCatch).
-
-2004-07-11  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclIOUtil.c: fix to 'cd' bug when vfs is active [tclvfs Bug
-	986944] - this bug recently introduced by some threading fixes. Need
-	to work out how to add tests for this.
-
-2004-07-10  Kevin Kenny	 <kennykb@acm.org>
-
-	* tests/clock.test (clock-2.11): Changed the test so that it isn't an
-	infinite loop when run under valgrind on a slow virtual machine.
-	Thanks to Miguel Sofer for the bug report. Also put in code to restore
-	env(LC_TIME) after tests complete, silencing a warning from 'make
-	TESTFLAGS="-debug 1" test'.
-
-2004-07-08  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclBasic.c (DeleteInterpProc): reverted the modification of
-	3 days ago, as the leak of [Bug 983660] is now handled by the change
-	in TclCleanupByteCode.
-	* generic/tclCompile.c (TclCleanupByteCode): let each bytecode remove
-	its references to literals at interp deletion, without updating the
-	dying literal table.
-	* generic/tclLiteral.c (TclDeleteLiteralTable): with the above change
-	to TclCleanupByteCode, this function now removes a single reference to
-	the literal object and cleans up its own structures.
-
-2004-07-08  Kevin Kenny	 <kennykb@acm.org>
-
-	* win/tclWinInit.c (AppendEnvironment): Silenced a compilation warning
-	about a type mismatch.
-
-2004-07-07  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompile.c (TclCompileScript): fix for [Bug 458361].
-	Single-word scripts are compiled with an unshared cmdName to avoid
-	shimmering between bytecode and cmdName reps.
-
-2004-07-07  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c (TclMergeReturnOptions):  Simplified logic and
-	removed potential memory leak. [Bug 986257].
-
-2004-07-07  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tools/man2help2.tcl (setTabs, IPmacro): Added support for the more
-	advanced *roff macros used in Tk's doc/bind.n
-
-	* generic/tclObj.c (TclInitObjSubsystem): Declare all current object
-	types.
-
-2004-07-06  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/cmdMZ.test (cmdMZ-return-2.17): Added a test that a word
-	containing backslash-quoted value is treated correctly.
-
-	* generic/tclCompile.c (TclWordKnownAtCompileTime): [Bug 986196]
-	Corrected flaw above and the flaw that caused TCL_TOKEN_SIMPLE_WORDs
-	to have their original word value copied ( "{a b}" ) rather than the
-	actual value ( "a b" ). Thanks to Kevin Kenny for report and tests.
-
-2004-07-06  Kevin B. Kenny  <kennykb@acm.org>
-
-	* tests/cmdMZ.test (cmdMZ-return-2.15,cmdMZ-return-2.16): Added a test
-	that a return code containing spaces is correctly returned.
-
-2004-07-06  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tools/man2html2.tcl (IPmacro, setTabs): Added support for the more
-	advanced *roff macros used in Tk's doc/bind.n
-
-2004-07-05  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclBasic.c (DeleteInterpProc): fix for [Bug 983660], found
-	by pspjuth. Tear down the global namespace before freeing the interp
-	handle, to allow the bytecodes to free their non-shared literals.
-	* generic/tclLiteral.c (TclReleaseLiteral): moved special code for
-	self-ref so that it is also used for non-shared literals. Possible bug
-	found by inspection.
-
-2004-07-03  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclExecute.c (ExprRoundFunc):
-	* tests/expr-old.test (39.1): added support for wide integers to
-	round(); [Bug 908375], reported by Hemang Lavana.
-
-2004-07-03  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompile.h:
-	* generic/tclInt.decls:
-	* generic/tclIntDecls.h:
-	* generic/tclStubInit.c: Moved declaration of TclCompEvalObj() from
-	tclCompile.h to the internal stubs table, for compiler
-	experimentation.
-
-2004-07-02  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/regcomp.c (stid): correct minor pointer size error
-
-	* generic/tclPipe.c (TclCreatePipeline): applied TIP #202 patch that
-	* doc/exec.n, tests/exec.test:		 adds 2>@1 as a special case
-	redirection of stderr to the result output.
-
-2004-07-02  Kevin B. Kenny  <kennykb@acm.org>
-
-	* tests/io.test: Changed several tests to run the event loop rather
-	than just calling [update] periodically, avoiding intermittent
-	failures (usually in io-29.32) that stemmed from unreaped processes on
-	Windows.
-	* tests/winPipe.test (winpipe-1.11): Fixed a bug that caused test to
-	fail if the path name of the working directory contained whitespace
-	[Bug 678430]
-
-2004-07-01  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* tests/fileSystem.test: Added test for [Bug 970529]
-
-2004-07-01  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* win/README.binary, win/README: Updated references to Tcl and Tk 8.4
-	to point to 8.5 instead. Thanks to Theo Verelst for spotting this.
-	* generic/tcl.h: Added note to help prevent those changes from getting
-	missed in the future.
-
-	* doc/Namespace.3, doc/load.n, doc/Limit.3: Typo fixes and remove
-	duplicate documentation. [Bug 983146]
-
-2004-06-30  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/fileSystem.test: Minor correction to new fileSystem-9.X tests
-	so that they clean up temporary directories correctly.
-
-2004-06-30  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* doc/filename.n: clarified behaviour concerning trailing slashes in
-	filenames [Bug 971976]
-
-	* win/tclWinFile.c:
-	* tests/fileSystem.test: fix and tests for [Bug 979879]
-
-2004-06-30  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	TIP#188 IMPLEMENTATION
-
-	* doc/string.n, tests/string.test:	 Add 'wideinteger' to things
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd): that can be tested for with
-	the [string is] subcommand. [Patch 940915, by Kevin Kenny]
-
-2004-06-29  Don Porter	<dgp@users.sourceforge.net>
-
-	* win/tclWinInit.c:	Corrected reference counting flaw in recent
-	changes. Thanks to Pat Thoyts. [Bug 981893].
-
-2004-06-29  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* win/tclWin32Dll.c: fix to compilation with VC++ 5.2
-
-2004-06-29  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* library/safe.tcl: Make sure that the temporary variable is local to
-	the namespace and not inadvertently global. [Bug 981733]
-
-2004-06-24  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tests/unixNotfy.test: Modified constraints so that testing with a
-	threaded tclsh (not tcltest) will not hang.
-
-2004-06-23  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclThreadStorage.c: Corrected type casting errors that led
-	to calculation of a negative index value, thus accesses outside the
-	threadStorageCache array, thus memory corruption. Crash observed on
-	Mac OS X platform.
-
-2004-06-23  Joe Mistachkin  <joe@mistachkin.com>
-
-	* generic/tclThread.c: Implements platform independent thread storage
-	* generic/tclThreadStorage.c: mechanism and fixes associated bugs on
-	platforms where there is limited thread local storage space
-	(Win98/WinNT4). [Patch 976496]
-
-	* generic/tclInt.decls:
-	* generic/tclIntDecls.h: Added thread storage functions to the
-	* generic/tclStubInit.c: internal stubs table.
-
-	* unix/Makefile.in:
-	* unix/configure:
-	* unix/tcl.m4:
-	* win/makefile.vc:
-	* win/rules.vc:
-	* win/Makefile.in: Modified the unix, VC++, and Cygwin build systems
-	* win/configure: to include the new "tclThreadStorage.c" and the new
-	* win/tcl.m4: USE_THREAD_STORAGE define.
-
-2004-06-23  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* tests/io.test: Added -force to 18.1 and 18.2. This was failing on
-	WinXP.
-
-	* tests/winFCmd.test: Added a cleanup to winFCmd-16.11 to avoid a
-	failure in 16.12.
-
-	* tests/eofchar.data: Added -kb option to ensure a binary checkout to
-	win32 systems. This fixes a failure in io-61.1
-
-	* win/makefile.vc: fix for [Bug 977369] about launching tclsh to
-	generate a tclConfig.sh with the nmake build system
-
-2004-06-23  Kevin B. Kenny  <kennykb@acm.org>
-
-	* tests/winDde.test (createChildProcess): Added a 200-ms delay (with
-	the event loop live) when shutting down the test DDE server process.
-	With the delay in place, nuisance failures of tests winDde-4.2, -6.5,
-	and -6.6 appear to be much less frequent. [Bug 957449]
-
-2004-06-23  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tests/*.test: Standardize use of platform constraints.
-
-	* unix/tclUnixInit.c (GetStackSize, TclpCheckStackSpace):
-	* unix/tclUnixThrd.c (TclpThreadGetStackSize): Added code to check
-	whether the C stack is about to be exceeded, from [Patch 746378] by
-	Joe Mistachkin but with substantial revisions.
-
-2004-06-22  Kevin Kenny	 <kennykb@acm.org>
-
-	* generic/tclEvent.c (NewThreadProc): Fixed broken build on Windows
-	caused by missing TCL_THREAD_CREATE_RETURN.
-
-	* tests/stack.test (stack-3.1): Corrected nuisance error in threaded
-	builds.
-
-2004-06-22  Zoran Vasiljevic <vasiljevic@users.sf.net>
-
-	* generic/tclEvent.c:
-	* generic/tclInt.h:
-	* unix/tclUnixNotfy.c:
-	* unix/tclUnixThrd.c:
-	* win/tclWinThrd.c: [Bug 770053]. See bug report for more information
-	about what it does.
-
-	* tests/unixNotfy.test: rewritten to use tcltest::threadReap to
-	gracefully wait for the test thread to exit. Otherwise we got a race
-	condition with main thread exiting before the test thread. This
-	exposed the long-standing Tcl lib issue with resource
-	garbage-collection on application exit.
-
-2004-06-21  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/tclWin32Dll.c (DllMain, _except_dllmain_detach_handler)
-	(TclpCheckStackSpace, _except_checkstackspace_handler)
-	(TclWinCPUID, _except_TclWinCPUID_detach_handler):
-	* win/tclWinChan.c (Tcl_MakeFileChannel)
-	(_except_makefilechannel_handler):
-	* win/tclWinFCmd.c (DoRenameFile, _except_dorenamefile_handler)
-	(DoCopyFile, _except_docopyfile_handler):
-	Rework pushing of exception handler function pointer so that compiling
-	with gcc -O3 works. Remove empty function call to avoid compiler
-	warning. Mark the DllMain function as noinline to avoid compiler error
-	from duplicated asm labels in generated code.
-
-2004-06-21  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclThreadAlloc.c (Ptr2Block): Rewrote so as to maximize the
-	chance of detecting and reporting a memory inconsistency without
-	relying on things being consistent. [Bug 975895]
-
-2004-06-18  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/load.test:	Relaxed strictness of error message matching
-	for test load-2.3 so that it will pass on Mac OSX.
-
-	* generic/tclEncoding.c: Static TclFindEncodings -> FindEncodings.
-	* generic/tclInt.h:	Updated TclpFindExecutable() so that failed
-	* generic/tclUtil.c:	attempts to find the executable are saved
-	* unix/tclUnixFile.c:	just as successful finds are. [Patch 966053]
-	* unix/tclUnixTest.c:
-
-2004-06-18  Kevin B. Kenny  <kennykb@acm.org>
-
-	* tests/winFCmd.test (winFCmd-16.12): Changed test to compute the
-	target directory, so as not to fail if the user's HOME isn't the root.
-
-2004-06-19  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tcl.m4: autoconf 2.5 fixes in Darwin section.
-	* unix/configure: autoconf-2.57
-
-2004-06-18  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* unix/tclUnixInit.c (localeTable): Added some more locale to encoding
-	mapping info from Jim Huang <jserv@kaffe.org>
-
-	* generic/tclInt.h (PendingObjData,TclFreeObjMacro,etc):
-	* generic/tclObj.c (TclFreeObj): Added scheme for making TclFreeObj()
-	avoid blowing up the C stack when freeing up very large object trees.
-	[Bug 886231]
-
-	* win/tclWinInit.c (SetDefaultLibraryDir): Fix logic, simplify and add
-	comments.
-
-2004-06-17  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclObj.c:	Added missing space in panic message.
-
-	* win/tclWinInit.c:	Inform [tclInit] about the default library
-	directory via the ::tclDefaultLibrary variable. This should correct a
-	problem with my 2004-06-11 commit. Better solutions still in the
-	works. Thanks to Joe Mistachkin for pointing out the breakage.
-
-2004-06-16  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/library.n:	Moved variables ::auto_oldpath and
-	* library/auto.tcl:	::unknown_pending into ::tcl namespace.
-	* library/init.tcl:	[Bugs 808319, 948794]
-
-2004-06-15  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/binary.n: Added some notes to the documentation of the 'a'
-	format to address the point raised in [RFE 768852].
-
-2004-06-15  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* unix/tclConfig.sh.in (TCL_EXTRA_CFLAGS): set to @CFLAGS@, which is
-	the configure-time CFLAGS. Addendum to m4 change on 2004-05-26.
-
-2004-06-14  Kevin Kenny	 <kennykb@acm.org>
-
-	* win/Makefile.in: Corrected compilation flags for tclPkgConfig.c so
-	that it doesn't require Stubs.
-	* generic/tclBasic.c (Tcl_CreateInterp): Removed comment stating that
-	TclInitEmbeddedConfigurationInformation needs Stubs; with the change
-	above, the comment is now erroneous.
-
-2004-06-11  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/Encoding.3:	Removed bogus claims about tcl_libPath.
-
-	* generic/tclInterp.c (Tcl_Init):	Stopped setting the
-	tcl_libPath variable. [tclInit] can get all its directories without it.
-
-	* tests/unixInit.test:	Modified test code that made use of
-	tcl_libPath variable.
-
-	* unix/tclUnixInit.c:	Stopped setting the tclDefaultLibrary variable,
-	execept on the Mac OS X platform with HAVE_CFBUNDLE. In that
-	configuration we should seek some way to make use of the TIP 59
-	facilities and get rid of that usage of tclDefaultLibrary as well.
-
-	* generic/tclInterp.c:	Updated [tclInit] to make $env(TCL_LIBRARY) an
-	absolute path, and to include the scriptdir,runtime configuration value
-	on the search path for init.tcl.
-
-	* unix/tclUnixInit.c:	The routines Tcl_Init() and TclSourceRCFile()
-	* win/tclWinInit.c:	had identical implementations for both win and
-	* generic/tclInterp.c:	unix. Moved to a single generic implementation.
-	* generic/tclMain.c:
-	* library/init.tcl:
-	* generic/tclInitScript.h (removed):
-	* unix/Makefile.in:
-	* win/tcl.dsp:
-
-	* unix/configure.in:	Updated TCL_PACKAGE_PATH value to handle
-	* win/configure.in:	--libdir configuration.
-
-	* unix/configure.in:	autoconf-2.57
-	* win/configure.in:
-
-	* generic/tclBasic.c (Tcl_CreateInterp): Moved call to
-	TclInitEmbeddedConfigurationInformation() earlier in
-	Tcl_CreateInterp() so that other parts of interp creation and
-	initialization may access and use the config values.
-
-2004-06-11  Kevin Kenny	 <kennykb@acm.org>
-
-	* win/tclAppInit.c: Restored the 'setargv' procedure when compiling
-	with mingw. Apparently, the command line parsing in mingw doesn't work
-	as well as that in vc++, and the result was (1) that winPipe-8.19
-	failed, and (2) that 'make test' would work at all only with
-	TESTFLAGS='-singleproc 1'. [Bug 967195]
-
-2004-06-10  Zoran Vasiljevic <vasiljevic@users.sf.net>
-
-	* generic/tclIOUtil.c: removed forceful setting of the private cached
-	current working directory rep from within the Tcl_FSChdir(). We
-	delegate this task to the Tcl_FSGetCwd() which does this task anyway.
-	The relevant code is still present but disabled temporarily until the
-	change proves correct. The Tcl test suite passes all test with the
-	given change so I suppose it is good enough.
-
-2004-06-10  Don Porter	<dgp@users.sourceforge.net>
-
-	* unix/tclUnixInit.c (TclpInitLibraryPath):	Disabled addition of
-	* win/tclWinInit.c (TclpInitLibraryPath):	relative-to-executable
-	directories to the library search path. A first step in reform of
-	Tcl's startup process.
-
-	***POTENTIAL INCOMPATIBILITY***
-	Attempts to directly run ./tclsh or ./tcltest out of a build directory
-	will either fail, or will make use of an installed script library in
-	preference to the one in the source tree. Use `make shell` or `make
-	runtest` instead.
-
-	* tests/unixInit.test:	Modified tests to suit above changes.
-
-	* generic/tclPathObj.c:	Corrected [file tail] results when operating
-	on a path produced by TclNewFSPathObj(). [Bug 970529]
-
-2004-06-09  Zoran Vasiljevic <vasiljevic@users.sf.net>
-
-	* generic/tclIOUtil.c: partially corrected [Bug 932314]. Also
-	corrected return values of Tcl_FSChdir() to reflect those of the
-	underlying platform-specific call. Originally, return codes were mixed
-	with those of Tcl.
-
-2004-06-08  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompile.c:
-	* generic/tclExecute.c: handle warning [Bug 969066]
-
-2004-06-08  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclHash.c (RebuildTable): Move declaration of variable so it
-	is only declared when it is used. [Bug 969068]
-
-2004-06-07  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/lsearch.n: Added correct option to example. [Bug 968219]
-
-2004-06-05  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tcl.h: Corrected Tcl_WideInt declarations so that the mingw
-	build works again.
-	* generic/tclDecls.h:			Changes to the tests for clock
-	* generic/tclInt.decls:			frequency in Tcl_WinTime so
-	* generic/tclIntDecls.h:		that any clock frequency is
-	* generic/tclIntPlatDecls.h:		accepted provided that all
-	* generic/tclPlatDecls.h:		CPU's in the system share a
-	* generic/tclStubInit.c:		common chip, and hence,
-	* tests/platform.test (platform-1.3):	presumably, a common clock.
-	* win/tclWin32Dll.c (TclWinCPUID):	This change necessitated a
-	* win/tclWinTest.c (TestwincpuidCmd)	small burst of assembly code
-	* win/tclWinTime.c (Tcl_GetTime):	to read CPU ID information,
-	which was added as TclWinCPUID in the internal Stubs. To test this
-	code in the common case of a single-processor machine, a
-	'testwincpuid' command was added to tclWinTest.c, and a test case in
-	platform.test. Thanks to Jeff Godfrey and Richard Suchenwirth for
-	reporting this bug. [Bug 976722]
-
-2004-06-04  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tcl.h:	Restored #include <stdio.h> to tcl.h,
-	rejecting the "fix" for "Bug" 945570. Tcl_FSSeek() needs the values of
-	SEEK_SET, etc. and too many extensions rely on tcl.h providing stdio.h
-	for them.
-
-2004-06-02  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* win/tclWinFile.c (TclpFindExecutable): when using GetModuleFileNameA
-	(Win9x), convert from CP_ACP to WCHAR then convert back to utf8.
-	Adjunct to 2004-04-07 fix.
-
-2004-06-02  David Gravereaux <davygrvy@pobox.com>
-
-	* tests/winPipe.test (winpipe-6.1): blocking set to 1 before closing
-	to ensure we get an exitcode. The windows pipe channel driver doesn't
-	differentiate between a blocking and non-blocking close just yet, but
-	will soon. Part of [Bug 947693]
-
-2004-06-02  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* doc/file.n: fix to documentation of 'file volumes' (Bug 962435)
-
-2004-06-01  David Gravereaux <davygrvy@pobox.com>
-
-	* win/makefile.vc: check for either MSDEVDIR or MSVCDIR being in the
-	environment, for VC7. [Bug 942214]
-
-	* generic/tclIO.c (Tcl_SetChannelOption): -buffersize wasn't
-	understanding hexidecimal notation nor was reporting number conversion
-	errors. The behavior to silently ignore settings outside the
-	acceptable range of Tcl_SetChannelBufferSize (<10 or >1M) is
-	unchanged. This silent ignoring behavior might be up for review soon.
-
-2004-05-30  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinPipe.c:
-	* win/tclWinPort.h:  Reworked the win implementation of Tcl_WaitPid to
-	support exitcodes in the 'signed short' range. Even though this range
-	is non-portable, it is valid on windows. Detection of exception codes
-	are now more accurate. Previously, an application that exited with
-	ExitProcess((DWORD)-1); was improperly reported as exiting with
-	SIGABRT.
-
-2004-05-30  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclInterp.c: Added comments describing the purposes of each
-	function in the limit implementation and rewrote the names of some
-	non-public functions for greater clarity of purpose.
-	* doc/interp.n: Added note about what happens when a limited
-	interpreter creates a slave interpreter.
-	* doc/Limit.3: Added manual page for the resource limit subsystem's C
-	API. [Bug 953903]
-
-2004-05-29  Joe English	 <jenglish@users.sourceforge.net>
-
-	* doc/global.n, doc/interp.n, doc/lrange.n: Fix minor markup errors.
-
-2004-05-28  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/*.n: Added examples to many (too many to list) more man pages.
-
-2004-05-25  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclExecute.c:
-	* generic/tclVar.c: using (ptrdiff_t) instead of (int) casting to
-	correct compiler warnings [Bug 961657], reported by Bob Techentin.
-
-2004-05-27  Kevin B. Kenny  <kennykb@acm.org>
-
-	* tests/clock.test: Added a single test for the presence of %G in
-	[clock format], and conditioned out the clock-10.x series if they're
-	all going to fail because of a broken strftime() call. [Bug 961714]
-
-2004-05-27  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclHash.c (CompareStringKeys): Added #ifdef to allow people
-	to instruct this function to use strcmp(). [FRQ 951168]
-
-	* generic/tclVar.c: Moved declarations into #if guards so they only
-	happen when required.
-	* unix/tclUnixPort.h: Guard declaration of strtod() so it is only
-	enabled when we don't have a declaration in stdlib.h
-	* unix/tclUnixThrd.c (Tcl_CreateThread):	Added declarations
-	* unix/tclUnixTest.c (AlarmHandler):		and casts so that
-	* unix/tclUnixChan.c (TtyModemStatusStr):	all functions are
-	* generic/tclScan.c (Tcl_ScanObjCmd):		defined before use
-	* generic/tclDictObj.c (InvalidateDictChain):	and no cross-type
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd):	uses are performed.
-
-	The overall effect is to make building with gcc with the additional
-	flags -Wstrict-prototypes -Wmissing-prototypes produce no increase in
-	the total number of warnings (except for main(), which is undeclared
-	for traditional reasons.)
-
-2004-05-26  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* unix/Makefile.in:  Rework configure ordering to TCL_LINK_LIBS,
-	* unix/tcl.m4:	     ENABLE_SHARED, CONFIG_CFLAGS, & ENABLE_SYMBOLS
-	* unix/configure:    before TCL_EARLY_FLAGS and TCL_64BIT_FLAGS
-	* unix/configure.in: (about 400 lines earlier) in configure.in. This
-	forces CFLAGS configuration to be done before many tests, which is
-	needed for 64-bit builds and may affect other builds. Also make
-	CONFIG_CFLAGS append to CFLAGS directly instead of using EXTRA_CFLAGS,
-	and have LDFLAGS append to any existing value. [Bug 874058]
-	* unix/dltest/Makefile.in: change EXTRA_CFLAGS to DEFS
-
-2004-05-26  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl:	Correction to debug prints and testing
-	* library/tcltest/pkgIndex.tcl:	if TCLTEST_OPTIONS value. Corrected
-	* tests/tcltest.test:		double increment of numTestFiles in
-	-singleproc 1 configurations. Updated tcltest-19.1 to tcltest 2.1
-	behavior. Corrected tcltest-25.3 to not falsely report a failure in
-	tcltest.test. Bumped to tcltest 2.2.6. [Bugs 960560, 960926]
-
-2004-05-25  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* doc/http.n (http::config): add -urlencoding option (default utf-8)
-	* library/http/http.tcl:     that specifies encoding conversion of
-	* library/http/pkgIndex.tcl: args for http::formatQuery. Previously
-	* tests/http.test:	     undefined, RFC 2718 says it should be
-	utf-8. 'http::config -urlencoding {}' returns previous behavior, which
-	will throw errors processing non-latin-1 chars. Bumped http package to
-	2.5.0.
-
-2004-05-25  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclInterp.c (DeleteScriptLimitCallback): Move all deletion
-	of script callback hash table entries to happen here so the entries
-	are correctly removed at the right time. [Bug 960410]
-
-2004-05-25  Miguel Sofer <msofer@users.sf.net>
-
-	* docs/global.n: added details for qualified variable names [Bug
-	959831]
-
-2004-05-25  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclNamesp.c (Tcl_FindNamespaceVar):
-	* tests/namespace.test (namespace-17.10-12): reverted commit of
-	2004-05-23 and removed the tests, as it interferes with the varname
-	resolver and there are apps that break (AlphaTk). A fix will have to
-	wait for Tcl9.
-
-	* generic/tclVar.c: Caching of namespace variables disabled: no simple
-	way was found to avoid interfering with the resolver's idea of
-	variable existence. A cached varName may keep a variable's name in the
-	namespace's hash table, which is the resolver's criterion for
-	existence.
-
-	* tests/namespace.c (namespace-17.10): testing for interference
-	between varname caching and name resolver.
-
-2004-05-25  Kevin Kenny	 <kennykb@acm.org>
-
-	* tests/winFCmd.test: Correct test for the presence of a CD-ROM so
-	that it doesn't misdetect some other sort of filesystem with a
-	write-protected root as being a CD-ROM drive. [Bug 918267]
-
-2004-05-25  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/winPipe.test:	Protect against path being set
-	* tests/unixInit.test:	Unset path when done.
-	* tests/unload.test (unload-3.1): Verify [pkgb_sub] does not exist.
-	Delete interps when done.
-	* tests/stringComp.test:	stop re-use of string.test test names
-	* tests/regexpComp.test:	stop re-use of regexp.test test names
-	* tests/namespace.test (namespace-46.3): Verify [p] does not exist.
-	* tests/http.test:	Clear away the custom [bgerror] when done.
-	* tests/io.test:	Take care to use namespace variables.
-	* tests/autoMkindex.test (autoMkindex-5.2): Use variable "result"
-	that gets cleaned up.
-	* tests/exec.test:	Clean up the "path" array.
-	* tests/interp.test (interp-9.3): Initialize res, so prior values
-	cannot make the test fail.
-	* tests/execute.test (execute-8.1):  Updated to remove the trace set
-	on ::errorInfo. When left in place, that trace can cause later tests
-	to fail.
-
-2004-05-25  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclBasic.c: Removed references to Tcl_RenameCommand from
-	* generic/tcl.h:      comments. [Bug 848440, second part]
-
-	* tests/fCmd.test: Rewrote tests that failed consistently on NFS so
-	they either succeed (through slightly more liberal matching of the
-	results) or are constrained to not run. [Bug 931312]
-
-	* doc/bgerror.n: Use idiomatic open flags for working with log
-	files. [Bug 959602]
-
-2004-05-24  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclExecute.c (VerifyExprObjType): use GET_WIDE_OR_INT to
-	properly have tclIntType used for smaller values. This corrects [TclX
-	Bug 896727] and any other 3rd party extension that created math
-	functions but was not yet WIDE_INT aware in them.
-
-2004-05-24  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclInterp.c (TclInitLimitSupport): Made limits work on
-	platforms where sizeof(void*)!=sizeof(int). [Bug 959193]
-
-2004-05-24 Miguel Sofer <msofer@users.sf.net>
-
-	* doc/set.n: accurate description of name resolution process,
-	referring to namespace.n for details [Bug 959180]
-
-2004-05-23  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclNamesp.c (Tcl_FindNamespaceVar): [Bug 959052] fixed,
-	insuring that no "zombie" variables are found.
-	* generic/tclVar.c (TclLookupSimpleVar): comments re [Bug 736729]
-	(predecessor of [Bug 959052]) removed.
-	* tests/namespace.test: added tests 17.10-12
-
-	The patch modifies non-documented behaviour, and passes every test in
-	the testsuite. However, scripts relying on the old behaviour may
-	break.
-	Note that the only behaviour change concerns the creative writing of
-	unset variables. More precisely, which variable will be created when
-	neither a namespace variable nor a global variable by that name
-	exists, as defined by [info vars]. The new behaviour is that the
-	namespace resolution process deems a variable to exist exactly when
-	[info vars] finds it - ie, either it has value, or else it was "fixed"
-	by a call to [variable].
-	Note: this patch was removed on 2002-05-25.
-
-2004-05-22  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclVar.c (TclObjLookupVar, TclObjUnsetVar2): fix for new (in
-	tcl8.4) exteriorisations of [Bug 736729] due to the use of
-	tclNsVarNameType obj types. Reenabling the use of this objType ("VAR
-	ref absolute" benchmark down to 66 ms, from 230). Added comments in
-	TclLookupSimpleVar explaining my current understanding of [Bug
-	736729].
-
-2004-05-22  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclVar.c: fix for [Bug 735335]. The use of tclNsVarNameType
-	objs is still disabled, pending resolution of [Bug 736729].
-
-2004-05-21  Miguel Sofer <msofer@users.sf.net>
-
-	* tests/namespace.test (namespace-41.3): removed the {knownBug}
-	constraint: [Bug 231259] is closed since nov 2001, and the fix of [Bug
-	729692] (INST_START_CMD) makes the test succeed.
-
-2004-05-21  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclExecute.c (TclExecuteByteCode): Move a few declarations a
-	short distance so pre-C99 compilers can cope. Also fix so
-	TCL_COMPILE_DEBUG path compiles...
-
-2004-05-21  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclExecute.c (TclExecuteByteCode): reorganised TEBC
-	automatic variables, defining them in tight blocks instead of at the
-	function level. This has three purposes:
-	- it simplifies the analysis of individual instructions
-	- it is preliminary work to the non-recursive engine
-	- it allows a better register allocation by the optimiser; under
-	gcc3.3, this results in up to 10% runtime in some tests
-
-2004-05-20  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclInterp.c (TclLimitRemoveAllHandlers):
-	* generic/tclBasic.c (DeleteInterpProc):
-	* tests/interp.test (interp-34.7): Ensure that all limit callbacks are
-	deleted when their interpreters are deleted. [Bug 956083]
-
-2004-05-19  Kevin B. Kenny  <kennykb@acm.org>
-
-	* win/tclWinFile.c (TclpMatchInDirectory): fix for an issue where
-	there was a sneak path from Tcl_DStringFree to SetErrorCode(0). The
-	result was that the error code could be reset between a call to
-	FindFirstFileEx and the check of its status return, leading to a
-	bizarre error return of {POSIX unknown {No error}}. (Found in
-	unplanned test - no incident logged at SourceForge.)
-
-2004-05-19  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tests/interp.test (interp-34.3): Rewrite this test to see if a time
-	limit can catch a tight bytecode loop, a maximally aggressive
-	denial-of-service attack.
-	* generic/tclInterp.c (Tcl_LimitCheck): Fix the sense of checks to see
-	whether a time limit has been extended.
-
-	* tests/*.test: Many minor fixes, including ensuring that every test
-	is run (so constraints control whether the test is doing anything) and
-	making sure that constraints are always set using the API instead of
-	poking around inside tcltest's internal datastructures. Also got rid
-	of all trailing whitespace lines from the test suite!
-
-2004-05-19  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c: Fixed [SF Tcl Bug 943274]. This is the same problem
-	* generic/tclIO.h: as [SF Tcl Bug 462317], see ChangeLog entry
-	2001-09-26. The fix done at that time is incomplete. It is possible to
-	get around it if the actual read operation is defered and not executed
-	in the event handler itself. Instead of tracking if we are in an read
-	caused by a synthesized fileevent we now track if the OS has delivered
-	a true event = actual data and bypass the driver if a read finds that
-	there is no actual data waiting. The flag is cleared by a short or
-	full read.
-
-	***POTENTIAL INCOMPATIBILITY*** for channel drivers.
-
-2004-05-17  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclPathObj.c: fix to (Bug 956063) in 'file dirname'.
-	* tests/cmdAH.test: added test for this bug.
-
-	* doc/FileSystem.3: better documentation of refCount requirements of
-	some FS functions (Bug 956126)
-
-2004-05-19  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclTest.c (TestgetintCmd): Made the tests in get.test check
-	* tests/get.test:		     Tcl_GetInt() since the core now
-					     avoids that function.
-
-2004-05-18  Kevin B. Kenny  <kennykb@acm.org>
-
-	* compat/strftime.c (_fmt, ISO8601Week):
-	* doc/clock.n:
-	* tests/clock.test: Major rework to the handling of ISO8601 week
-	numbers. Now passes all the %G and %V test cases on Windows, Linux and
-	Solaris [Bugs 500285, 500389, and 852944]
-
-2004-05-18  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/append.n, doc/upvar.n: Added example.
-
-2004-05-18  David Gravereaux <davygrvy@pobox.com>
-
-	* win/makefile.vc: now generates a tclConfig.sh from Pat Thoyts [Patch
-	909911]
-
-2004-05-18  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/lsearch.n: Improve clarity (based on [Patch 955361] by Peter
-	Spjuth)
-
-	* tools/man2help2.tcl (macro,SHmacro): Added support for subsection
-	(.SS) header macros.
-
-	* doc/interp.n: Added user documentation for the TIP#143 resource
-	limits and some examples.
-
-	* generic/tclInterp.c (Tcl_LimitCheck, Tcl_LimitTypeReset): Reset the
-	limit-exceeded flag when removing a limit.
-
-2004-05-18  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclExecute.c (TclExecuteByteCode): added comments to
-	classify the variables according to their use in TEBC.
-
-2004-05-17  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/global.n, doc/uplevel.n: Added an example.
-
-	* tests/info.test (info-3.1): Corrected test result back to what it
-	used to be in Tcl 7.* now that command counts are being correctly kept
-
-	* generic/tclExecute.c (TEBC:INST_START_CMD): Make sure that the
-	command-count is always advanced. Allows TIP#143 limits to tell that
-	work is being done.
-
-	* doc/list.n: Updated example to fit with the unified format.
-	* doc/seek.n: Added some examples.
-
-2004-05-17  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* win/tclWinFile.c:
-	* tests/cmdAH.test: fix to (Bug 954263) where 'file executable' was
-	case-sensitive.
-
-2004-05-17  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/OpenFileChnl.3: Documented type of 'offset' argument to Tcl_Seek
-	was wrong. [Bug 953374]
-
-2004-05-16  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclExecute.c (TclExecuteByteCode): remove one level of
-	indirection for compiledLocals addressing.
-
-2004-05-16  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclExecute.c (INST_CALL_FUNC1): bugfix; restored
-	(DE)CACHE_STACK_INFO pair around the call - the user defined math
-	function could cause a recursive call to TEBC.
-
-2004-05-16  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclBasic.c (Tcl_DeleteInterp):
-	* generic/tclExecute.c (INST_START_CMD): interp deletion now modifies
-	the compileEpoch, eliminating the need for the check for interp
-	deletion in INST_START_CMD.
-
-2004-05-16  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompile.h:
-	* generic/tclCompile.c:
-	* generic/tclExecute.c: changed implementation of {expand}, last
-	chance while in alpha as ...
-
-	***POTENTIAL INCOMPATIBILITY***
-	Scripts precompiled with ProComp under previous tcl8.5a versions may
-	malfunction due to changed instruction numbers for
-	INST_LIST_INDEX_IMM, INST_LIST_RANGE_IMM and INST_START_CMD.
-
-2004-05-14  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclInt.decls:	     Promoted TclpLocaltime and TclpGmtime
-	* generic/tclIntDecls.h:     from Unix-specific stubs to the generic
-	* generic/tclIntPlatDecls.h: internal Stubs table. Reran 'genstubs'
-	* generic/tclStubInit.c:
-	* unix/tclUnixPort.h:
-
-	* generic/tclClock.c: Changed a buggy 'GMT' timezone specification
-			      to the correct 'GMT0'. [Bug 922848]
-
-	* unix/tclUnixThrd.c: Moved TclpGmtime and TclpLocaltime to
-			      unix/tclUnixTime.c where they belong.
-
-	* unix/tclUnixTime.c (TclpGmtime, TclpLocaltime, TclpGetTimeZone,
-			      ThreadSafeGMTime [removed],
-			      ThreadSafeLocalTime [removed],
-			      SetTZIfNecessary, CleanupMemory):
-	Restructured to make sure that the same mutex protects all calls to
-	localtime, gmtime, and tzset. Added a check in front of those calls to
-	make sure that the TZ env var hasn't changed since the last call to
-	tzset, and repeat tzset if necessary. [Bug 942078] Removed a buggy
-	test of the Daylight Saving Time information in 'gettimeofday' in
-	favor of applying 'localtime' to a known value. [Bug 922848]
-
-	* tests/clock.test (clock-3.14): Added test to make sure that changes
-	to $env(TZ) take effect immediately.
-
-	* win/tclWinTime.c (TclpLocaltime, TclpGmtime): Added porting layer
-	for 'localtime' and 'gmtime' calls.
-
-2004-05-14  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclExecute.c:
-	* generic/tclCompile.h: the math functions receive a pointer to top of
-	the stack (tosPtr) instead of the execution environment (eePtr). First
-	step towards a change in the execution stack management - it is now
-	only used within TEBC.
-
-2004-05-13  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	TIP#143 IMPLEMENTATION
-
-	* generic/tclExecute.c (TclCompEvalObj, TclExecuteByteCode):
-	* generic/tclBasic.c (TclEvalObjvInternal): Enable limit checking.
-	* generic/tclInterp.c (Tcl_Limit*): Public limit API.
-	* generic/tcl.decls:
-	* tests/interp.test: Basic tests of command limits.
-
-	* doc/binary.n:		TIP#129 IMPLEMENTATION [Patch 858211]
-	* generic/tclBinary.c:	Note that the test suite probably has many more
-	* tests/binary.test:	failures now due to alterations in constraints.
-
-2004-05-12  Miguel Sofer <msofer@users.sf.net>
-
-	Optimisations for INST_START_CMD [Bug 926164].
-	* generic/tclCompile.c (TclCompileScript): avoid emitting
-	INST_START_CMD as the first instruction in a bytecoded Tcl_Obj. It is
-	not needed, as the checks are done before calling TEBC.
-	* generic/tclExecute.c (TclExecuteByteCode): runtime peephole
-	optimisation: check at INST_POP if the next instruction is
-	INST_START_CMD, in which case we fall through.
-
-2004-05-11  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/split.n, doc/join.n: Updated examples and added more.
-
-2004-05-11  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* doc/glob.n: documented behaviour of symbolic links with 'glob -types
-	d' (Bug 951489)
-
-2004-05-11  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/scan.n: Updated the examples to be clearer about their relevance
-	to the scan command.
-
-2004-05-10  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/scan.n: Added examples.
-
-2004-05-10  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinPipe.c (BuildCommandLine): Moved non-obvious appending
-	logic to outside the loop and added commentary for its purpose. Also
-	use the existence of contents in the linePtr rather than the scratch
-	DString post the append, as this more clear.
-
-	(TclpCreateProcess): When under NT, with no console, and executing a
-	DOS application, the path priming does not need an ending space as
-	BuildCommandLine() will do this for us.
-
-2004-05-08  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFileName.c:
-	* generic/tclIOUtil.c: remove some compiler warnings on MacOS X.
-
-2004-05-07  Chengye Mao <chengye.geo@yahoo.com>
-
-	* win/tclWinPipe.c: refixed bug 789040 re-entered in rev 1.41. Let's
-	be careful and don't re-enter previously fixed bugs.
-
-2004-05-08  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/format.n: Added examples.
-
-2004-05-07  Miguel Sofer <msofer@users.sf.net>
-
-	* doc/unset.n: added upvar.n to the "see also" list
-
-2004-05-07  Reinhard Max  <max@suse.de>
-
-	* generic/tclEncoding.c:
-	* tests/encoding.test: added support and tests for translating
-	embedded null characters between real nullbytes and the internal
-	representation on input/output [Bug 949905].
-
-2004-05-07  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFileName.c:
-	* generic/tclIOUtil.c:
-	* generic/tclFileSystem.h:
-	* tests/fileSystem.test: fix for [Bug 943995], in which vfs-registered
-	root volumes were not handled correctly as glob patterns in all
-	circumstances.
-
-2004-05-06  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclInt.h:
-	* generic/tclObj.c (TclFreeObj): made TclFreeObj use the new macro
-	TclFreeObjMacro(), so that the allocation and freeing of Tcl_Obj is
-	defined in a single spot (the macros in tclInt.h), with the exception
-	of the TCL_MEM_DEBUG case.
-	The #ifdef logic for the corresponding macros has been reformulated to
-	make it clearer.
-
-2004-05-05  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/break.n, doc/continue.n, doc/for.n, doc/while.n: More examples.
-
-2004-05-05  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/unixInit.test (unixInit-2.10):	Test correction for Mac OSX.
-	Be sure to consistently compare normalized path names. Thanks to
-	Steven Abner (tauvan). [Bug 948177]
-
-2004-05-05  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/CrtObjCmd.3: Remove reference to Tcl_RenameCommand; there is no
-	such API. [Bug 848440]
-
-2004-05-05  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinSock.c (SocketEventProc) : connect errors should fire both
-	the readable and writable handlers because this is how it works on
-	UNIX [Bug 794839]
-
-	* generic/tclEncoding.c (TclFinalizeEncodingSubsystem):
-	FreeEncoding(systemEncoding); moved to before the hash table iteration
-	as it was causing a double free attempt under some conditions.
-
-	* win/coffbase.txt: Added the tls extension to the list of preferred
-	load addresses.
-
-2004-05-04  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* tests/fileSystem.test (filesystem-1.39): replace 'file volumes'
-	* tests/fileName.test (filename-12.9,10):  lindex with direct C:/
-	hard-coded because A:/ was being used and that is empty for most.
-
-	* tests/winFCmd.test (winFCmd-16.12): test volumerelative $HOME
-
-2004-05-04  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclAlloc.c:		Make sure Tclp*Alloc* routines get
-	* generic/tclInt.h:		declared in the TCL_MEM_DEBUG and
-	* generic/tclThreadAlloc.c:	TCL_THREADS configuration. [Bug 947564]
-
-	* tests/tcltest.test:	Test corrections for Mac OSX. Thanks to Steven
-	Abner (tauvan). [Bug 947440]
-
-2004-05-04  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclEvent.c (TclSetLibraryPath): Suppress a warning.
-
-2004-05-03  Andreas Kupries  <andreask@activestate.com>
-
-	* Applied [Patch 868853], fixing a mem leak in TtySetOptionProc.
-	Report and Patch provided by Stuart Cassoff <stwo@users.sf.net>.
-
-2004-05-03  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclProc.c (TclCreateProc): comments corrected.
-
-2004-05-03  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompile.c (TclCompileScript): setting the compilation
-	namespace outside of the loop.
-
-2004-05-03  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompile.c:
-	* generic/tclInt.h: reverted fix for [Bug 926445] of 2004-04-02,
-	restoring TCL_ALIGN to the header file. Todd Helfter reported that the
-	macro is required by tbcload.
-
-2004-05-03  Kevin Kenny	 <kennykb@acm.org>
-
-	* win/tclWin32Dll.c (TclpCheckStackSpace):
-	* tests/stack.test (stack-3.1): Fix for undetected stack overflow in
-	TclReExec on Windows. [Bug 947070]
-
-2004-05-03  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/init.tcl:	Corrected unique prefix matching of
-	interactive command completion in [unknown]. [Bug 946952]
-
-2004-05-02  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclProc.c (TclObjInvokeProc):
-	* tests/proc.test (proc-3.6): fix for bad quoting of multi-word proc
-	names in error messages [Bug 942757]
-
-2004-04-30  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/glob.n, doc/incr.n, doc/set.n:	More examples.
-	* doc/if.n, doc/rename.n, doc/time.n:
-
-2004-04-30  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclInt.h:		Replaced Kevin Kenny's temporary
-	* generic/tclThreadAlloc.c:	fix for Bug 945447 with a cleaner,
-	more permanent replacement.
-
-2004-04-30  Kevin B. Kenny   <kennykb@acm.org>
-
-	* generic/tclThreadAlloc.c: Added a temporary (or so I hope!)
-	inclusion of "tclWinInt.h" to avoid problems when compiling on
-	Win32-VC++ with --enable-threads. [Bug 945447]
-
-2004-04-30  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/puts.n: Added a few examples.
-
-2004-04-29  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/execute.test (execute-8.2):	Avoid crashes when there is
-	limited system stack space (threads-enabled).
-
-2004-04-28  Miguel Sofer <msofer@users.sf.net>
-
-	* doc/global.n:
-	* doc/upvar.n:
-	* generic/tclVar.c (ObjMakeUpvar):
-	* tests/upvar.test (upvar-8.11):
-	* tests/var.test (var-3.11): Avoid creation of unusable variables:
-	[Bug 600812] [TIP 184].
-
-2004-04-28  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/lsearch.n: Fixed fault in documentation of -index option [943448]
-
-2004-04-26  Don Porter	<dgp@users.sourceforge.net>
-
-	* unix/tclUnixFCmd.c (TclpObjNormalizePath):  Corrected improper
-	positioning of returned checkpoint. [Bug 941108]
-
-2004-04-26  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/open.n, doc/close.n: Updated (thanks to David Welton) to be
-	clearer about pipeline errors and added example to open(n) that shows
-	simple pipeline use. [Patches 941377,941380]
-
-	* doc/DictObj.3: Added warning about the use of Tcl_DictObjDone and an
-	example of use of iteration. [Bug 940843]
-
-	* doc/Thread.3: Reworked to remove references to testing interfaces
-	and instead promote the use of the Thread package. [Patch 932527]
-	Also reworked and reordered the page for better readability.
-
-2004-04-25  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tcl.h:	Removed obsolete declarations and #include's.
-	* generic/tclInt.h:	[Bugs 926459, 926486]
-
-2004-04-24  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWin32Dll.c (DllMain): Added DisableThreadLibraryCalls() for
-	the DLL_PROCESS_ATTACH case. We're not interested in knowing about
-	DLL_THREAD_ATTACH, so disable the notices.
-
-2004-04-24  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclPort.h:
-	* macosx/Makefile:
-	* unix/Makefile.in: followup on tcl header reform [FR 922727]: removed
-	use of relative #include paths in tclPort.h to allow installation of
-	private headers outside of tcl source tree; added 'unix' dir to
-	compiler header search path; add newly required tcl private headers to
-	Tcl.framework on Mac OSX.
-
-2004-04-23  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c (Tcl_SetChannelOption): Fixed [SF Tcl Bug 930851].
-	When changing the eofchar we have to zap the related flags to prevent
-	them from prematurely aborting the next read.
-
-2004-04-25  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclPathObj.c: fix to [Bug 940281]. Tcl_FSJoinPath will now
-	always return a valid Tcl_Obj when the input is valid.
-	* generic/tclIOUtil.c: fix to [Bug 931823] for a more consistent
-	Tcl_FSPathSeparator() implementation which allows filesystems not to
-	implement their Tcl_FSFilesystemSeparatorProc if they wish to use the
-	default '/'. Also fixed associated memory leak seen with, e.g., tclvfs
-	package.
-	* doc/FileSystem.3: documented Tcl_FSJoinPath return values more
-	clearly, and Tcl_FSFilesystemSeparatorProc requirements.
-
-2004-04-23  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWin32Dll.c: Removed my mistake from 4/19 of adding an exit
-	handler to TclWinInit. TclWinEncodingsCleanup called from
-	TclFinalizeFilesystem does the Tcl_FreeEncoding for us.
-
-	* win/tclWinChan.c (Tcl_MakeFileChannel): Case for CloseHandle
-	returning zero and not throwing a
-	RaiseException(EXCEPTION_INVALID_HANDLE) now being done.
-
-2004-04-22  David Gravereaux <davygrvy@pobox.com>
-
-	* generic/tclEvent.c: TclSetLibraryPath's use of caching the stringrep
-	of the pathPtr object to TclGetLibraryPath called from another thread
-	was ineffective if the original's stringrep had been invalidated as
-	what happens when it gets muted to a list.
-
-	* win/tclWinTime.c: If the Tcl_ExitProc (StopCalibration) is called
-	from the stack frame of DllMain's PROCESS_DETACH, the wait operation
-	should timeout and continue.
-
-	* generic/tclInt.h:
-	* generic/tclThread.c:
-	* generic/tclEvent.c:
-	* unix/tclUnixThrd.c:
-	* win/tclWinThrd.c: Provisions made so masterLock, initLock, allocLock
-	and joinLock mutexes can be recovered during Tcl_Finalize.
-
-2004-04-22  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/switch.n: Reworked the examples to be more systematically named
-	and to cover some TIP#75 capabilities.
-
-	* doc/cd.n: Documentation clarification from David Welton.
-
-	* doc/exec.n: Added some examples, Windows ones from Arjen Markus and
-	Unix ones by myself.
-
-2004-04-21  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/Hash.3: Added note to Tcl_{First,Next}HashEntry docs that
-	deleting the element they return is supported (and is in fact the only
-	safe update you can do to the structure of a hashtable while an
-	iteration is going over it.)
-
-	* doc/bgerror.n: Added example from David Welton. [Patch 939473]
-
-	* doc/after.n: Added examples from David Welton. [Patch 938820]
-
-2004-04-19  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWin32Dll.c: Added an exit handler in TclWinInit() so
-	tclWinTCharEncoding could be freed during Tcl_Finalize().
-
-	* generic/tclEncoding.c: Added FreeEncoding(systemEncoding) in
-	TclFinalizeEncodingSubsystem because its ref count was incremented in
-	TclInitEncodingSubsystem.
-
-2004-04-19  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/read.n: Added example from David Welton. [Patch 938056]
-
-2004-04-19  Kevin B. Kenny   <kennykb@acm.org>
-
-	* generic/tclObj.c (Tcl_GetDoubleFromObj) Corrected "short circuit"
-	conversion of int to double. Reported by Jeff Hobbs on the Tcl'ers
-	Chat.
-
-2004-04-16  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/lreplace.n, doc/lrange.n, doc/llength.n:	More examples for
-	* doc/linsert.n, doc/lappend.n:			the documentation.
-
-2004-04-16  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* doc/FileSystem.3: Corrected documentation of Tcl_FSUtime, and the
-	corresponding filesystem driver Tcl_FSUtimeProc. [Bug 935838]
-
-2004-04-16  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/socket.n: Added example from [Patch 936245].
-	* doc/gets.n: Added example based on [Patch 935911].
-
-2004-04-15  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclClock.c (Tcl_ClockObjCmd): Minor fault in a [clock
-	clicks] error message.
-
-2004-04-07  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* win/tclWinInit.c (TclpSetInitialEncodings): note that WIN32_CE is
-	also a unicode platform.
-	* generic/tclEncoding.c (TclFindEncodings, Tcl_FindExecutable):
-	* generic/tclInt.h:			    Correct handling of UTF
-	* unix/tclUnixInit.c (TclpInitLibraryPath): data that is actually
-	* win/tclWinFile.c (TclpFindExecutable):    "clean", allowing the
-	* win/tclWinInit.c (TclpInitLibraryPath):   loading of Tcl from paths
-	that contain multi-byte chars on Windows [Bug 920667]
-
-	* win/configure:    define TCL_LIB_FLAG, TCL_BUILD_LIB_SPEC,
-	* win/configure.in: TCL_LIB_SPEC, TCL_PACKAGE_PATH in tclConfig.sh.
-
-2004-04-06  Don Porter	<dgp@users.sourceforge.net>
-
-	Patch 922727 committed.	 Implements three changes:
-
-	* generic/tclInt.h:	Reworked the Tcl header files into a clean
-	* unix/tclUnixPort.h:	hierarchy where tcl.h < tclPort.h < tclInt.h
-	* win/tclWinInt.h:	and every C source file should #include
-	* win/tclWinPort.h:	at most one of those files to satisfy its
-	declaration needs. tclWinInt.h and tclWinPort.h also better organized
-	so that tclWinPort.h includes the Windows implementation of
-	cross-platform declarations, while tclWinInt.h makes declarations that
-	are available on Windows only.
-
-	* generic/tclBinary.c (TCL_NO_MATH):	Deleted the generic/tclMath.h
-	* generic/tclMath.h (removed):		header file. The internal Tcl
-	* macosx/Makefile (PRIVATE_HEADERS):	header, tclInt.h, has a
-	* win/tcl.dsp:				#include <math.h> directly,
-	and file external to Tcl needing libm should do the same.
-
-	* win/Makefile.in (WIN_OBJS):	Deleted the win/tclWinMtherr.c file.
-	* win/makefile.bc (TCLOBJS):	It's a vestige from matherr() days
-	* win/makefile.vc (TCLOBJS):	gone by.
-	* win/tcl.dsp:
-	* win/tclWinMtherr.c (removed):
-
-	End Patch 922727.
-
-	* tests/unixInit.test (unixInit-3.1):	Default encoding on Darwin
-	systems is utf-8. Thanks to Steven Abner (tauvan). [Bug 928808]
-
-2004-04-06  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tests/cmdAH.test (cmdAH-18.2): Added constraint because
-	access(...,X_OK) is defined to be permitted to be meaningless when
-	running as root, and OSX exhibits this. [Bug 929892]
-
-2004-04-02  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompile.c:
-	* generic/tclInt.h: removed the macro TCL_ALIGN() from tclInt.h,
-	replaced by the static macro ALIGN() in tclCompile.c [Bug 926445]
-
-2004-04-02  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompile.h: removed redundant #ifdef _TCLINT [Bug 928415],
-	reported by tauvan.
-
-2004-04-02  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/tcltest.test: Corrected constraint typos: "nonRoot" ->
-	"notRoot". Thanks to Steven Abner (tauvan). [Bug 928353]
-
-2004-04-01  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclInt.h:  Removed obsolete tclBlockTime* declarations. [Bug
-	926454]
-
-2004-04-01  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclIOUtil.c: Fix to privately reported vfs bug with 'glob
-	-type d -dir . *' across a vfs boundary. No tests for this are
-	currently possible without effectively moving tclvfs into Tcl's test
-	suite.
-
-2004-03-31  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/msgcat.n:	Clarified message catalog file encodings. [Bug 811457]
-	* library/msgcat/msgcat.tcl: Updated internals to make use of [dict]s
-	to store message catalog data and to use [source -encoding utf-8] to
-	access catalog files. Thanks to Michael Sclenker. [Patch 875055, RFE
-	811459] Corrected [mcset] to be able to successfully set a translation
-	to the empty string. [mcset $loc $src {}] was incorrectly set the $loc
-	translation of $src back to $src. Also changed [ConvertLocale] to
-	minimally require a non-empty "language" part in the locale value. If
-	not, an error raised prompts [Init] to keep looking for a valid locale
-	value, or ultimately fall back on the "C" locale. [Bug 811461].
-	* library/msgcat/pkgIndex.tcl:	Bump to msgcat 1.4.1.
-
-2004-03-30  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclHash.c (HashStringKey): Cleaned up. This function is not
-	faster, but it is a little bit clearer.
-	* generic/tclLiteral.c (HashString): Applied logic from HashObjKey.
-	* generic/tclObj.c (HashObjKey): Rewrote to fix fault which hashed
-	every single-character object to the same hash bucket. The new code is
-	shorter, simpler, clearer, and (happily) faster.
-
-2004-03-30  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclExecute.c (TEBC): reverting to the previous method for
-	async tests in TEBC, as the new method turned out to be too costly.
-	Async tests now run every 64 instructions.
-
-2004-03-30  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompile.c:	    New instruction code INST_START_CMD that
-	* generic/tclCompile.h:	    allows checking the bytecode's validity
-	* generic/tclExecute.c:	    [Bug 729692] and the interp's readyness
-	* tests/interp.test (18.9): [Bug 495830] before running the command.
-	* tests/proc.test (7.1):    It also changes the mechanics of the async
-	* tests/rename.test (6.1):  tests in TEBC, doing it now at command
-	start instead of every 16 instructions.
-
-2004-03-30  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFileName.c:  Fix to Windows glob where the pattern is a
-	* generic/tclIOUtil.c:	  volume relative path or a network share [Bug
-	* tests/fileName.test:	  898238]. On windows 'glob' will now return
-	* tests/fileSystem.test:  the results of 'glob /foo/bar' and 'glob
-	\\foo\\bar' as 'C:/foo/bar', i.e. a correct absolute path (rather than
-	a volume relative path).
-
-	Note that the test suite does not test commands like
-	'glob //Machine/Shared/*' (on a network share).
-
-2004-03-30  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclPathObj.c:	  Fix to filename bugs recently
-	* tests/fileName.test:	  introduced [Bug 918320].
-
-2004-03-29  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclMain.c (Tcl_Main, StdinProc):	Append newline only
-	* tests/basic.test (basic-46.1):		to incomplete scripts
-	as part of multi-line script construction. Do not add an extra
-	trailing newline to the complete script. [Bug 833150]
-
-2004-03-28  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompile.c (TclCompileScript): corrected possible segfault
-	when a compilation returns TCL_OUTLINE_COMPILE after having grown the
-	compile environment [Bug 925121].
-
-2004-03-27  Miguel Sofer <msofer@users.sf.net>
-
-	* doc/array.n: added documentation for trace-realted behaviour of
-	'array get' [Bug 449893]
-
-2004-03-26  Don Porter	<dgp@users.sourceforge.net>
-
-	* README:		Bumped version number to 8.5a2 to distinguish
-	* tools/tcl.wse.in:	HEAD of CVS development from the recent 8.5a1
-	* unix/configure.in:	release.
-	* unix/tcl.spec:
-	* win/README.binary:
-	* win/configure.in:
-
-	* unix/configure:	autoconf-2.57
-	* win/configure:
-
-2004-03-26  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclPathObj.c:	  Fix to Windows-only volume relative path
-	* tests/fileSystem.test:  normalization. [Bug 923568]. Also fixed
-	another volume relative bug found while testing.
-
-2004-03-24  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclNamesp.c (NsEnsembleImplementationCmd): Fix messed up
-	handling of strncmp result which just happened to work in some libc
-	implementations. [Bug 922752]
-
-2004-03-23  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/StringObj.3: Inverted the sense of the documentation of how the
-	bytes parameter is documented to match behaviour. [Bug 921464]
-
-2004-03-19  Kevin B. Kenny   <kennykb@acm.org>
-
-	* compat/strtoll.c:
-	* compat/strtoull.c:
-	* generic/tclIntDecls.h:
-	* generic/tclMain.c:
-	* generic/tclObj.c:
-	* win/tclWinDde.c:
-	* win/tclWinReg.c:
-	* win/tclWinTime.c:	   Made HEAD build on Windows VC++ again.
-
-2004-03-19  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclIntDecls.h: Made HEAD build on Solaris again by applying
-	fix recommended by Don Porter.
-
-2004-03-18  Reinhard Max  <max@suse.de>
-
-	* generic/tclIntDecls.h: Removed TclpTime_t. It wasn't really needed,
-	* generic/tclInt.h:	 but caused warnings related to
-	* generic/tclInt.decls:	 strict aliasing with GCC 3.3.
-	* generic/tclClock.c:
-	* generic/tclDate.c:
-	* generic/tclGetDate.y:
-	* win/tclWinTime.c:
-	* unix/tclUnixTime.c:
-
-	* generic/tclNamesp.c:	 Added temporary pointer variables to work
-	* generic/tclStubLib.c:	 around warnings related to
-	* unix/tclUnixChan.c:	 strict aliasing with GCC 3.3.
-
-	* unix/tcl.m4:		 Removed -Wno-strict-aliasing.
-
-2004-03-18  Daniel Steffen  <das@users.sourceforge.net>
-
-	Removed support for Mac OS Classic platform [Patch 918142]
-
-	* README:
-	* compat/string.h:
-	* doc/Encoding.3:
-	* doc/FileSystem.3:
-	* doc/Init.3:
-	* doc/Macintosh.3 (removed):
-	* doc/OpenFileChnl.3:
-	* doc/OpenTcp.3:
-	* doc/SourceRCFile.3:
-	* doc/Thread.3:
-	* doc/clock.n:
-	* doc/exec.n:
-	* doc/fconfigure.n:
-	* doc/file.n:
-	* doc/filename.n:
-	* doc/glob.n:
-	* doc/open.n:
-	* doc/puts.n:
-	* doc/resource.n (removed):
-	* doc/safe.n:
-	* doc/source.n:
-	* doc/tclvars.n:
-	* doc/unload.n:
-	* generic/README:
-	* generic/tcl.decls:
-	* generic/tcl.h:
-	* generic/tclAlloc.c:
-	* generic/tclBasic.c:
-	* generic/tclCmdAH.c:
-	* generic/tclDate.c:
-	* generic/tclDecls.h:
-	* generic/tclFCmd.c:
-	* generic/tclFileName.c:
-	* generic/tclGetDate.y:
-	* generic/tclIOCmd.c:
-	* generic/tclIOUtil.c:
-	* generic/tclInitScript.h:
-	* generic/tclInt.decls:
-	* generic/tclInt.h:
-	* generic/tclIntDecls.h:
-	* generic/tclIntPlatDecls.h:
-	* generic/tclMain.c:
-	* generic/tclMath.h:
-	* generic/tclNotify.c:
-	* generic/tclPathObj.c:
-	* generic/tclPlatDecls.h:
-	* generic/tclPort.h:
-	* generic/tclStubInit.c:
-	* generic/tclTest.c:
-	* generic/tclThreadJoin.c:
-	* library/auto.tcl:
-	* library/init.tcl:
-	* library/package.tcl:
-	* library/safe.tcl:
-	* library/tclIndex:
-	* mac/AppleScript.html (removed):
-	* mac/Background.doc (removed):
-	* mac/MW_TclAppleScriptHeader.h (removed):
-	* mac/MW_TclAppleScriptHeader.pch (removed):
-	* mac/MW_TclBuildLibHeader.h (removed):
-	* mac/MW_TclBuildLibHeader.pch (removed):
-	* mac/MW_TclHeader.h (removed):
-	* mac/MW_TclHeader.pch (removed):
-	* mac/MW_TclHeaderCommon.h (removed):
-	* mac/MW_TclStaticHeader.h (removed):
-	* mac/MW_TclStaticHeader.pch (removed):
-	* mac/MW_TclTestHeader.h (removed):
-	* mac/MW_TclTestHeader.pch (removed):
-	* mac/README (removed):
-	* mac/bugs.doc (removed):
-	* mac/libmoto.doc (removed):
-	* mac/morefiles.doc (removed):
-	* mac/porting.notes (removed):
-	* mac/tclMac.h (removed):
-	* mac/tclMacAETE.r (removed):
-	* mac/tclMacAlloc.c (removed):
-	* mac/tclMacAppInit.c (removed):
-	* mac/tclMacApplication.r (removed):
-	* mac/tclMacBOAAppInit.c (removed):
-	* mac/tclMacBOAMain.c (removed):
-	* mac/tclMacChan.c (removed):
-	* mac/tclMacCommonPch.h (removed):
-	* mac/tclMacDNR.c (removed):
-	* mac/tclMacEnv.c (removed):
-	* mac/tclMacExit.c (removed):
-	* mac/tclMacFCmd.c (removed):
-	* mac/tclMacFile.c (removed):
-	* mac/tclMacInit.c (removed):
-	* mac/tclMacInt.h (removed):
-	* mac/tclMacInterupt.c (removed):
-	* mac/tclMacLibrary.c (removed):
-	* mac/tclMacLibrary.r (removed):
-	* mac/tclMacLoad.c (removed):
-	* mac/tclMacMath.h (removed):
-	* mac/tclMacNotify.c (removed):
-	* mac/tclMacOSA.c (removed):
-	* mac/tclMacOSA.r (removed):
-	* mac/tclMacPanic.c (removed):
-	* mac/tclMacPkgConfig.c (removed):
-	* mac/tclMacPort.h (removed):
-	* mac/tclMacProjects.sea.hqx (removed):
-	* mac/tclMacResource.c (removed):
-	* mac/tclMacResource.r (removed):
-	* mac/tclMacSock.c (removed):
-	* mac/tclMacTclCode.r (removed):
-	* mac/tclMacTest.c (removed):
-	* mac/tclMacThrd.c (removed):
-	* mac/tclMacThrd.h (removed):
-	* mac/tclMacTime.c (removed):
-	* mac/tclMacUnix.c (removed):
-	* mac/tclMacUtil.c (removed):
-	* mac/tcltkMacBuildSupport.sea.hqx (removed):
-	* tests/all.tcl:
-	* tests/binary.test:
-	* tests/cmdAH.test:
-	* tests/cmdMZ.test:
-	* tests/fCmd.test:
-	* tests/fileName.test:
-	* tests/fileSystem.test:
-	* tests/interp.test:
-	* tests/io.test:
-	* tests/ioCmd.test:
-	* tests/load.test:
-	* tests/macFCmd.test (removed):
-	* tests/osa.test (removed):
-	* tests/resource.test (removed):
-	* tests/socket.test:
-	* tests/source.test:
-	* tests/unload.test:
-	* tools/cvtEOL.tcl (removed):
-	* tools/genStubs.tcl:
-	* unix/Makefile.in:
-	* unix/README:
-	* unix/mkLinks:
-	* unix/tcl.spec:
-	* win/README.binary:
-	* win/tcl.dsp:
-
-2004-03-17  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/lsearch.n: Improved examples on the advanced capabilities of
-	lsearch (with the right options, set element removal can be done)
-	following discussion on tkchat.
-
-2004-03-16  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/catch.n:	Compiled [catch] no longer fails to catch syntax
-	errors. Removed the claims in the documentation that it does.
-	* doc/return.n:	Updated example to use [dict merge].
-
-2004-03-16  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* unix/configure, unix/tcl.m4: add -Wno-strict-aliasing for GCC to
-	suppress useless type puning warnings.
-
-2004-03-16  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/file.n: *roff formatting fix. [Bug 917171]
-
-2004-03-15  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinNotify.c: Fixed a mistake where the return value of
-	MsgWaitForMultipleObjectsEx for "a message is in the queue" wasn't
-	accurate. I removed the check on the case result==(WAIT_OBJECT_0 + 1)
-	This was having the error of falling into GetMessage and waiting there
-	by accident, which wasn't alertable through Tcl_AlertNotifier. I'll do
-	some more study on this and try to find-out why.
-
-2004-03-12  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	IMPLEMENTATION OF TIP#163
-	* generic/tclDictObj.c (DictMergeCmd):	This is based on work by Joe
-	* tests/dict.test (dict-20.*):		English in Tcl [FRQ 745851]
-	* doc/dict.n:				but not exactly.
-
-2004-03-10  Kevin B. Kenny <kennykb@acm.org>
-
-	* generic/tclGetDate.y (TclGetDate): Fix so that [clock scan
-	<timeOfDay> -gmt true] uses the GMT base date instead of the local
-	one. [Bug 913513]
-	* tests/clock.test: Added test cases for wrong ISO8601 week number
-	[Bug 500285] and wrong GMT base date [Bug 913513]. Several tests still
-	fail on Windows, and these are actual faults in [clock scan]. Fix is
-	still pending.
-	* generic/tclDate.c: Regenerated.
-
-2004-03-08  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFileName.c:  Fix to 'glob -path' near the root
-	* tests/fileName.test:	  of the filesystem. [Bug 910525]
-
-2004-03-08  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclParse.c (TclParseInit):	Modified TclParseInit so
-	* generic/tclTest.c ([testexprparser]): that Tcl_Parse initialization
-	conforms to documented promised about what fields will not be
-	modified by what Tcl_Parse* routines. [Bug 910595]
-
-2004-03-05  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/configure: Regen.
-	* win/configure.in: Check for define of MWMO_ALERTABLE in winuser.h.
-	* win/tclWinPort.h: If MWMO_ALERTABLE is not defined in winuser.h then
-	define it. This is needed for Mingw.
-
-2004-03-05  Kevin B. Kenny <kennykb@acm.org>
-
-	* generic/tclTest.c: Modified TesteventObjCmd to use a
-	Tcl_QueuePosition in place of an 'int' for the enumerated queue
-	position, to avoid a compiler warning on SGI. [Bug 771960]
-
-2004-03-05  Kevin B. Kenny <kennykb@acm.org>
-
-	* tests/registry.test: Applied fix from [Patch 910174] to make the test
-	for an English-language system include any country code, rather than
-	just English-United States.1252. Thanks to Pat Thoyts for the changes.
-
-2004-03-04  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* tests/registry.test: Applied fixed from [Bug 766159] to skip two
-	tests on Win98 that depend on a Unicode registry (NT specific).
-
-2004-03-04  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclInt.h (TclParseInit):	Factored the common code
-	* generic/tclParse.c (TclParseInit):	for initializing a Tcl_Parse
-	* generic/tclParseExpr.c:		struct into one routine.
-
-2004-03-04  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* library/reg/pkgIndex.tcl:  Added TIP #100 support to the
-	* win/tclWinReg.c:	     registry package [patch 903831]
-	This provides a Windows test of the TIP #100 mechanism and a sample to
-	show how unloading an extension can be done.
-
-2004-03-04  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* unix/dltest/pkgua.c: Fix minor syntax problems. [Bug 909288]
-
-2004-03-03  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	*** 8.5a1 TAGGED FOR RELEASE ***
-
-	* changes: updated for 8.5a1
-
-2004-03-03  David Gravereaux <davygrvy@pobox.com>
-
-	* win/makefile.vc: default environment variable for VC++ is %MSDevDir%
-	not %MSVCDir%, although vcvars32.bat sets both.
-
-	* win/tclWinNotify.c (Tcl_WaitForEvent) : Allows an idling notifier to
-	service "Asynchronous Procedure Calls" from its wait state. Only
-	useful for extension authors who decide they might want to try
-	"completion routines" with WriteFileEx(), as an example. From
-	experience, I recommend that "completion ports" should be used instead
-	as the execution of the callbacks are more managable.
-
-2004-03-01  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* README:	    update patchlevel to 8.5a1
-	* generic/tcl.h:
-	* tools/tcl.wse.in, tools/tclSplash.bmp:
-	* unix/configure, unix/configure.in, unix/tcl.spec:
-	* win/README.binary, win/configure, win/configure.in:
-
-	* unix/tcl.m4: update HP-11 build libs setup
-
-2004-03-01  Don Porter	<dgp@users.sourceforge.net>
-
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS):	Allow 64-bit enabling on
-	IRIX64-6.5* systems. [Bug 218561]
-	* unix/configure:	autoconf-2.57
-
-	* generic/tclTrace.c (TclCheckInterpTraces):	The TIP 62
-	* generic/tclTest.c (TestcmdtraceCmd):	implementation introduced a
-	* tests/trace.test (trace-29.10):	bug by testing the CallFrame
-	level instead of the iPtr->numLevels level when deciding what traces
-	created by Tcl_Create(Obj)Trace to call. Added test to expose the
-	error, and made fix. [FRQ 462580]
-
-2004-02-28  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* tests/fileSystem.test: fix to Tcl Bug 905163.
-	* tests/fileName.test: fix to Tcl Bug 904705.
-
-	* doc/{various}.n: removed 'the the' typos.
-
-2004-02-26  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Makefile: fixed copyright year in Tcl.framework Info.plist
-
-2004-02-25  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/basic.test:	Made several tests more robust to the
-	* tests/cmdMZ.test:	list-quoting of path names that might contain
-	* tests/exec.test:	Tcl-special chars like { or [. Should help us
-	* tests/io.test:	sort out [Bug 554068]
-	* tests/pid.test:
-	* tests/socket.test:
-	* tests/source.test:
-	* tests/unixInit.test:
-
-2004-02-25  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclLoad.c (Tcl_LoadObjCmd): Missing dereference caused
-	segfault with non-loadable extension. [Bug 904307]
-
-	* unix/tclUnixChan.c (TcpGetOptionProc): Stop memory leak with very
-	long hostnames. [Bug 888777]
-
-2004-02-25  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* win/tclWinDde.c: Removed some gcc warnings - except for the
-	-Wconversion warning for GetGlobalAtomName. gcc is just wrong about
-	this.
-
-2004-02-24  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	IMPLEMENTATION OF TIP#100 FROM GEORGIOS PETASIS
-	* generic/tclLoad.c (Tcl_UnloadObjCmd): Implementation.
-	* tests/unload.test:			Test suite.
-	* unix/dltest/pkgua.c:			Helper for test suite.
-	* doc/unload.n:				Documentation.
-	Also assorted changes (mostly small) to several other files.
-
-2004-02-23  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/regc_locale.c (cclass): Buffer was having its size reset
-	instead of being released => memleak. [Bug 902562]
-
-2004-02-21  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclLoad.c (Tcl_LoadObjCmd): Fixed memory leak due to an
-	improper error exit route.
-
-2004-02-20  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinSock.c (SocketThreadExitHandler): Don't call
-	TerminateThread when WaitForSingleObject returns a timeout.
-	Tcl_Finalize called from DllMain will pause all threads. Trust that
-	the thread will get the close notice at a later time if it does ever
-	wake up before being cleaned up by the system anyway.
-
-2004-02-17  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/tcltest.n:
-	* library/tcltest/tcltest.tcl:	Changed -verbose default value to
-	{body error} so that detailed information on unexpected errors in
-	tests is provided by default, even after the fix for [Bug 725253]
-
-2004-02-17  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* tests/unixInit.test (unixInit-7.1):
-	* unix/tclUnixInit.c (TclpInitPlatform): ensure the std fds exist to
-	prevent crash condition [Bug 772288]
-
-2004-02-17  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclCompCmds.c (TclCompileSwitchCmd): Bozo mistake in memory
-	releasing order when in an error case. [Bug 898910]
-
-2004-02-16  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclTrace.c (TclTraceExecutionObjCmd)
-	(TclTraceCommandObjCmd): fix possible mem leak in trace info.
-
-2004-02-12  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/tclWinInit.c (AppendEnvironment): Use the tail component of the
-	passed in lib path instead of just blindly using lib+4. That worked
-	when lib was "lib/..." but fails for other values. Thanks go to
-	Patrick Samson for pointing this out.
-
-2004-02-10  David Gravereaux  <davygrvy@pobox.com>
-
-	* win/nmakehlp.c: better macro grepping logic.
-
-2004-02-07  David Gravereaux  <davygrvy@pobox.com>
-
-	* win/makefile.vc:
-	* win/rules.vc:
-	* win/tcl.rc:
-	* win/tclsh.rc: Added an 'unchecked' option to the OPTS macro so a
-	core built with symbols can be linked to the non-debug enabled C
-	run-time. As per discussion with Kevin Kenny. Called like this:
-
-		nmake -af makefile.vc OPTS=unchecked,symbols
-
-	This clarifies the meaning of the 'g' naming suffix to mean only that
-	the binary requires the debug enabled C run-time. Whether the binary
-	contains symbols or not is a different condition.
-
-2004-02-06  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/clock.n:	Removed reference to non-existent [file ctime].
-
-2004-02-05  David Gravereaux  <davygrvy@pobox.com>
-
-	* docs/tclvars.n: Added clarification of the tcl_platform(debug) var
-	that it only refers to the flavor of the C run-time, and not whether
-	the core contains symbols.
-
-2004-02-05  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclFileName.c (SkipToChar): Corrected CONST and type-casting
-	issues that caused compiler warnings.
-
-2004-02-04  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCmdAH.c (StoreStatData): Removed improper refcount
-	decrement of the varName parameter. This error was causing segfaults
-	following test cmdAH-28.7.
-
-	* library/tcltest/tcltest.tcl: Corrected references to non-existent
-	$name variable in [cleanupTests]. [Bug 833637]
-
-2004-02-03  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl:	Corrected parsing of single command
-	line argument (option with missing value) [Bug 833910]
-	* library/tcltest/pkgIndex.tcl:	Bump to version 2.2.5.
-
-2004-02-02  David Gravereaux <davygrvy@pobox.com>
-
-	* generic/tclIO.c (Tcl_Ungets): Fixes improper filling of the channel
-	buffer. This is the buffer before the splice. [Bug 405995]
-
-2004-02-01  David Gravereaux <davygrvy@pobox.com>
-
-	* tests/winPipe.test: more pass-thru commandline verifications.
-	* win/tclWinPipe.c (BuildCommandLine): Special case quoting for '{'
-	not required by the c-runtimes's parse_cmdline().
-	* win/tclAppInit.c: Removed our custom setargv() in favor of the work
-	provided by the c-runtime. [Bug 672938]
-
-	* win/nmakehlp.c: defensive techniques to avoid static buffer
-	overflows and a couple envars upsetting invokations of cl.exe and
-	link.exe. [Bug 885537]
-
-	* tests/winPipe.test: Added proof that BuildCommandLine() is not doing
-	the "N backslashes followed a quote -> insert N * 2 + 1 backslashes
-	then a quote" rule needed for the crt's parse_cmdline().
-	* win/tclWinPipe.c: Fixed BuildCommandLine() to pass the new cases.
-
-2004-01-30  David Gravereaux <davygrvy@pobox.com>
-
-	* win/makefile.vc: Use the -GZ compiler switch when building for
-	symbols. This is supposed to emulate the release build better to avoid
-	hiding problems that only show themselves in a release build.
-
-2004-01-29  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclPathObj.c: fix to [Bug 883143] in file normalization
-
-2004-01-29  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* doc/file.n:
-	* generic/tclFCmd.c
-	* generic/tclTest.c
-	* library/init.tcl
-	* mac/tclMacFile.c
-	* tests/fileSystem.test: fix to [Bug 886352] where 'file copy -force'
-	had inconsistent behaviour wrt target files with insufficient
-	permissions, particular from vfs->native fs. Behaviour of '-force' is
-	now always consistent (and now consistent with behaviour of 'file
-	delete -force'). Added new tests and documentation and cleaned up the
-	'simplefs' test filesystem.
-
-	* generic/tclIOUtil.c
-	* unix/tclUnixFCmd.c
-	* unix/tclUnixFile.c
-	* win/tclWinFile.c: made native filesystems more robust to C code
-	which asks for mount lists.
-
-	* generic/tclPathObj.c: fix to [Bug 886607] removing warning/error
-	with some compilers.
-
-2004-01-28  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclObj.c (SetBooleanFromAny): Rewrite to do more efficient
-	string->bool conversion.
-	Many other minor whitespace/style fixes to this file too.
-
-2004-01-27  David Gravereaux <davygrvy@pobox.com>
-
-	* win/nmakehlp.c: Use '.\nul' as the sourcefile name instead of 'nul'
-	so VC 5.2 doesn't try searching the path for it and failing with a
-	possible dialogbox popping up about having to add a CD to an empty
-	drive. Also added a SetErrorMode() call to disable any dialogs that
-	cl.exe or link.exe might create. [Bug 885537]
-
-2004-01-22  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* doc/file.n: clarified documentation of 'file system' [Bug 883825]
-	* tests/fCmd.test: improved test result in failure case.
-
-2004-01-22  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* tests/fileSystem.test: 3 new tests
-	* generic/tclPathObj.c: fix to [Bug 879555] in file normalization.
-	* doc/filename.n: small clarification to Windows behaviour with
-	filenames like '.....', 'a.....', '.....a'.
-
-	* generic/tclIOUtil.c: slight improvement to native cwd caching on
-	Windows.
-
-2004-01-21  David Gravereaux <davygrvy@pobox.com>
-
-	* doc/Panic.3:	Mentions of 'panic' and 'panicVA' removed from the
-	documentation.
-
-2004-01-21  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* doc/FileSystem.3:
-	* generic/tcl.decls:
-	* generic/tclCmdAH.c
-	* generic/tclDecls.h
-	* generic/tclFCmd.c
-	* generic/tclFileName.c
-	* generic/tclFileSystem.h
-	* generic/tclIOUtil.c
-	* generic/tclInt.decls
-	* generic/tclInt.h
-	* generic/tclIntDecls.h
-	* generic/tclPathObj.c
-	* generic/tclStubInit.c
-	* generic/tclTest.c
-	* mac/tclMacFile.c
-	* tests/fileName.test
-	* tests/fileSystem.test
-	* tests/winFCmd.test
-	* unix/tclUnixFile.c
-	* win/tclWin32Dll.c
-	* win/tclWinFCmd.c
-	* win/tclWinFile.c
-	* win/tclWinInt.h
-
-	Three main issues accomplished: (1) cleaned up variable names in the
-	filesystem code so that 'pathPtr' is used throughout. (2) applied a
-	round of filesystem optimisation with better handling and caching of
-	relative and absolute paths, requiring fewer conversions. (3)
-	clarifications to the documentation, particularly regarding the
-	acceptable refCounts of objects. Some new tests added. Tcl benchmarks
-	show a significant improvement over 8.4.5, and on Windows typically a
-	small improvement over 8.3.5 (Unix still appears to require
-	optimisation). TCL_FILESYSTEM_VERSION_2 introduced, but for internal
-	use only. There should be no public incompatibilities from these
-	changes. Thanks to dgp for extensive testing.
-
-2004-01-19  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinPipe.c (Tcl_WaitPid): Fixed a thread-safety problem with
-	the process list. The delayed cut operation after the wait was going
-	stale by being outside the list lock. It now cuts within the lock and
-	does a locked splice for when it needs to instead. [Bug 859820]
-
-2004-01-18  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclCompile.c, generic/tclCompile.h: Two new opcodes,
-	INST_LIST_INDEX_IMM and INST_LIST_RANGE_IMM, that have operand(s) of
-	new type OPERAND_IDX4 which represents indexes into things like lists
-	(and perhaps other things eventually.)
-	* generic/tclExecute.c (TclExecuteByteCode): Implementation of the new
-	opcodes. INST_LIST_INDEX_IMM does a simple [lindex] with either front-
-	or end-based simple indexing. INST_LIST_RANGE_IMM does an [lrange]
-	with front- or end-based simple indexing for both the reference to the
-	first and last items in the range.
-	* generic/tclCompCmds.c (TclCompileLassignCmd): Generate bytecode for
-	the [lassign] command.
-
-2004-01-17  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinInit.c: added #pragma comment(lib, "advapi32.lib") when
-	compiling under VC++ so we don't need to specify it when linking.
-
-2004-01-17  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclCmdIL.c (Tcl_LassignObjCmd): Add more shimmering
-	protection for when the list is also one of the variables.
-
-	BASIC IMPLEMENTATION OF TIP#57
-	* generic/tclCmdIL.c (Tcl_LassignObjCmd): Implementation of the
-	[lassign] command that takes full advantage of Tcl's object API.
-	* doc/lassign.n: New file documenting the command.
-	* tests/cmdIL.test (cmdIL-6.*): Test suite for the command.
-
-2004-01-15  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinReg.c: Placed the requirement for advapi.lib into the
-	object file itself with #pragma comment (lib, ...) when built with
-	VC++. This will simplify linking for users of the static library.
-
-	* win/rules.vc: Added new 'fullwarn' to the CHECKS commandline macro;
-	sets $(FULLWARNINGS).
-
-	* win/makefile.vc: Removed 'advapi.lib' from $(baselibs). Added new
-	logic to crank-up the warning levels for both compile and link when
-	$(FULLWARNINGS) is set. Some clean-up with how the resource files are
-	built and how -DTCL_USE_STATIC_PACKAGES is sent when compiling the
-	shells.
-
-	* win/tclAppInit.c: Small change in how TCL_USE_STATIC_PACKAGES is
-	used.
-
-	* win/tcl.rc:
-	* win/tclsh.rc: Some clean-up with how the resource files are built.
-	Fixed 'OriginalFilename' problem that still thought a debug suffix was
-	still 'd', now is 'g'.
-
-2004-01-14  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclDictObj.c (TraceDictPath, DictExistsCmd): Adjusted
-	behaviour of [dict exists] so a failure to look up a dictionary along
-	the path of dicts doesn't trigger an error. This is how it was
-	documented to behave previously... [Bug 871387]
-
-	* generic/tclDictObj.c: Assorted dict fixes from Peter Spjuth relating
-	to [Bug 876170].
-	(SetDictFromAny): Make sure that lists retain their ordering even when
-	converted to dictionaries and back.
-	(TraceDictPath): Correct object reference count handling!
-	(DictReplaceCmd, DictRemoveCmd): Stop object leak.
-	(DictIncrCmd,DictLappendCmd,DictAppendCmd,DictSetCmd,DictUnsetCmd):
-	Simpler handling of reference counts when assigning to variables.
-	* tests/dict.test (dict-19.2): Memory leak stress test
-
-2004-01-13  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c (Tcl_SwitchObjCmd):  Silence compiler warnings.
-
-	Patch 876451: restores performance of [return]. Also allows forms such
-	as [return -code error $msg] to be bytecompiled.
-
-	* generic/tclInt.h:	Factored Tcl_ReturnObjCmd() into two pieces:
-	* generic/tclCmdMZ.c:	TclMergeReturnOptions(), which can parse the
-	options to [return], check their validity, and create the
-	corresponding return options dictionary, and TclProcessReturn(), which
-	takes that return options dictionary and performs the [return]
-	operation.
-
-	* generic/tclCompCmds.c: Rewrote TclCompileReturnCmd() to call
-	TclMergeReturnOptions() at compile time so the return options
-	dictionary is computed at compile time (when it is fully known). The
-	dictionary is pushed on the stack along with the result, and the code
-	and level values are included in the bytecode as operands. Also
-	supports optimized compilation of un-[catch]ed [return]s from procs
-	with default options into the INST_DONE instruction.
-
-	* generic/tclExecute.c: Rewrote INST_RETURN instruction to retrieve
-	the code and level operands, pop the return options from the stack,
-	and call TclProcessReturn() to perform the [return] operation.
-
-	* generic/tclCompile.h:	New utilities include TclEmitInt4 macro
-	* generic/tclCompile.c:	and TclWordKnownAtCompileTime().
-
-	End Patch 876451.
-
-	* generic/tclFileName.c (Tcl_GlobObjCmd): Latest changes to management
-	of the interp result by Tcl_GetIndexFromObj() exposed improper interp
-	result management in the [glob] command procedure. Corrected by
-	adopting the Tcl_SetObjResult(Tcl_NewStringObj) pattern. This stopped
-	a segfault in test filename-11.36. [Bug 877677]
-
-2004-01-13  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclIndexObj.c (Tcl_GetIndexFromObjStruct, Tcl_WrongNumArgs):
-	Create fresh objects instead of using the one currently in the
-	interpreter, which isn't guaranteed to be fresh and unshared. The cost
-	for the core will be minimal because of the object cache, and this
-	fixes [Bug 875395].
-
-2004-01-12  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompExpr.c (CompileLandOrLorExpr): cosmetic changes.
-
-2004-01-12  Miguel Sofer <msofer@users.sf.net>
-
-	* generic/tclCompExpr.c (CompileLandOrLorExpr): new logic, fewer
-	instructions. As a side effect, the instructions INST_LOR and
-	INST_LAND are now never used.
-	* generic/tclExecute.c (INST_JUMP*): small optimisation; fix a bug in
-	debug code.
-
-2004-01-11  David Gravereaux <davygrvy@pobox.com>
-
-	* win/tclWinThrd.c (Tcl_ConditionNotify): condPtr must be dereferenced
-	to see if there are waiters else uninitialized datum is manipulated.
-	[Bug 849007 789338 745068]
-
-2004-01-09  David Gravereaux <davygrvy@pobox.com>
-
-	* generic/tcl.h: Renamed and deprecated #defines moved to within the
-	#ifndef TCL_NO_DEPRECATED block. This allows us to build Tcl to check
-	for deprecated functions in use, such as panic() and Tcl_Ckalloc(). By
-	request from DKF. Extensions that build with -DTCL_NO_DEPRECATED now
-	have these macros as restricted.
-	***POTENTIAL INCOMPATIBILITY***
-
-	* win/makefile.vc:
-	* win/rules.vc:	 Added -DTCL_NO_DEPRECATED usage to makefile.vc.
-	Called like this:   nmake -af makefile.vc CHECKS=nodep
-
-2004-01-09  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclIOUtil.c: fix to infinite loop in TclFinalizeFilesystem
-	[Bug 873311]
-
-	******************************************************************
-	*** CHANGELOG ENTRIES FOR 2003 IN "ChangeLog.2003"	       ***
-	*** CHANGELOG ENTRIES FOR 2002 IN "ChangeLog.2002"	       ***
-	*** CHANGELOG ENTRIES FOR 2001 IN "ChangeLog.2001"	       ***
-	*** CHANGELOG ENTRIES FOR 2000 IN "ChangeLog.2000"	       ***
-	*** CHANGELOG ENTRIES FOR 1999 AND EARLIER IN "ChangeLog.1999" ***
-	******************************************************************
diff --git a/ChangeLog.2005 b/ChangeLog.2005
deleted file mode 100644
index 109ea8e..0000000
--- a/ChangeLog.2005
+++ /dev/null
@@ -1,3822 +0,0 @@
-2005-12-30  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclStubLib.c: Corrected a typo in "missing Stubs table
-	pointer."
-
-2005-12-27  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tcl.decls:  Destubbed TclTomMathInitializeStubs - it is in
-	* generic/tcl.h:      the stub library, not the main shared
-	* generic/tclBasic.c: library. Exported Tcl_InitBignumFromDouble.
-	* generic/tclExecute.c:
-	* generic/tclInt.h:
-	* generic/tclStrToD.c:
-
-	* generic/tclDecls.h:
-	* generic/tclStubLib.c:
-	* generic/tclStubInit.c: Regenerated.
-
-	* generic/clock.tcl: Reverted to using the time zone abbreviation and
-	not its name to "stop the bleeding" on [Bug 1386377]. This is *not* a
-	good long-term solution, but there may not be one.
-
-	* libtommath/bn_mp_sqrt.c: Improved the initial approximation to the
-	square root, roughly doubling the speed of the routine. (This is a
-	local change that needs to be communicated to Tom.)
-
-	* win/Makefile.in: Corrected a bug where tommath_class.h and
-	tommath_superclass.h were not installed, making it impossible for
-	client code to compile against the tommath stubs.
-
-	* library/tzdata: Updated to Olson's tzdata2005r. (Latest changes to
-	Daylight Saving Time in Canada, plus redefinition of the Posix-style
-	zones [e.g., EST5EDT] to be locale-independent.)
-
-	* libtommath: Updated to Tom St.Denis's release 0.37.
-
-2005-12-20  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclThreadAlloc.c (Tcl_GetMemoryInfo): Format values as longs
-	and not ints, so they are less likely to wrap on 64-bit machines.
-
-2005-12-19  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c:	Modified [string is double] to use
-	* tests/string.test:	TclParseNumber() to parse trailing whitespace.
-	Ensures consistency, and makes it easier to cleanup after invalid
-	internal reps left behind by parsing [Bugs 1360532 1382287].
-
-	* generic/tclParseExpr.c:	Added TCL_PARSE_NO_WHITESPACE to
-	* generic/tclScan.c:	TclParseNumber() calls since [scan] and [expr]
-	* tests/scan.test:	parsing don't want spaces in parsed numbers.
-
-	* generic/tclInt.h:	Added TCL_PARSE_NO_WHITESPACE flag to the
-	* generic/tclStrToD.c:	TclParseNumber() interface.
-
-2005-12-19  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* doc/Tcl.n: Clarify what is going on in variable substitution
-	following thread on comp.lang.tcl.
-
-2005-12-18  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclCompCmds.c (TclCompileDictCmd): Ensure that we only do an
-	'endCatch' when there's a preceding 'beginCatch'. [Bug 1382528] Many
-	thanks to Anton Kovalenko for finding this and pointing out that it was
-	a catch stack handling problem!
-
-2005-12-14  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclIOUtil.c: workaround gcc warning "comparison is always
-	* generic/tclTest.c:   false due to limited range of data type".
-
-	* macosx/Tcl.xcode/project.pbxproj:
-	* macosx/Tcl.xcodeproj/project.pbxproj:
-	* unix/Makefile.in: add new tclTomMath* files.
-
-	* generic/tclBasic.c: replace panic with Tcl_Panic.
-
-2005-12-13  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tcl.decls:    Added changes to export an additional stubs
-	* generic/tclBasic.c:   table to represent the 'libtommath' routines
-	* generic/tclDecls.h:   that Tcl uses and export them to callers.
-	* generic/tclInt.decls: Reran 'genstubs'
-	* generic/tclInt.h:
-	* generic/tclIntDecls.h:
-	* generic/tclIntPlatDecls.h:
-	* generic/tclStubInit.c:
-	* generic/tclStubLib.c:
-	* generic/tclTomMath.decls:
-	* generic/tclTomMath.h:
-	* generic/tclTomMathDecls.h:
-	* generic/tclTomMathInterface.c:
-	* generic/tommath.h:
-	* tools/fix_tommath_h.tcl:
-	* unix/Makefile.in:
-	* win/Makefile.in:
-	* win/makefile.vc:
-
-	* generic/tclClock.c:   Made changes to silence a number of compiler
-	* generic/tclIO.c:	warnings when building with mingw.
-	* generic/tclIORChan.c:
-	* generic/tclLink.c:
-	* generic/tclListObj.c:
-	* generic/tclObj.c:
-	* generic/tclParseExpr.c:
-	* generic/tclProc.c:
-	* generic/tclTimer.c:
-	* win/tclWinChan.c:
-	* win/tclWinConsole.c:
-	* win/tclWinDde.c:
-	* win/tclWinFCmd.c:
-	* win/tclWinFile.c:
-	* win/tclWinReg.c:
-	* win/tclWinSock.c:
-
-2005-12-13  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclExecute.c (TEBC:DICT_FIRST,DICT_DONE): Only decrease the
-	references to the dictionary once the iteration completes. Do this by
-	storing the dict in the iterator context variable. [Bug 1379349] Thanks
-	to Ulrich Ring and Tobias Hippler for finding this.
-
-2005-12-12  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/tcl.m4, unix/configure: Fix sh quoting error reported in
-	bash-3.1+ [Bug 1377619] (schafer)
-
-2005-12-12  Kevin B. Kenny  <kennykb@acm.org>
-
-	* doc/mathfunc.n: Changed two examples from the incorrect 'tcl::math::'
-	to 'tcl::mathfunc::' [Bug 1378818]
-
-2005-12-09  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/configure: Regen.
-	* win/tcl.m4 (SC_CONFIG_CFLAGS): Define MACHINE for gcc builds. The
-	lack of a definition of this variable in the manifest file was causing
-	a runtime error in wish built with gcc.
-
-2005-12-09  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* tests/lsearch.test (lsearch-10.8..10):  If the -start is off the end,
-	* generic/tclCmdIL.c (Tcl_LsearchObjCmd): searching should find nothing
-	at all. [Bug 1374778]
-
-2005-12-08  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/Makefile.in, win/makefile.vc: Add Win x64 and CE build support
-	* win/tcl.m4, win/configure:        CE still requires C code fixes.
-
-	* generic/tcl.h: use struct __stat64 (not _stat64) for MSC_VER >= 1400
-	(i.e. latest Platform SDK).
-
-2005-12-07  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* doc/socket.n: Cross-referenced the socket documentation better to the
-	fconfigure documentation on the topic of asynch sockets.
-	* doc/fconfigure.n: Added keyword to documentation of -blocking option
-	so that people looking for "asynch" can find it as well.
-
-2005-12-05  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tclUnixPort.h (Darwin): fix incorrect __DARWIN_UNIX03 configure
-	overrides that were originally copied from Darwin CVS (rdar://3693001)
-
-2005-12-05  Kevin B. Kenny  <kennykb@acm.org>
-
-	* tools/tclZIC.tcl: Updated to reflect changes in calling sequence when
-	GetJulianDateFromEraYearMonthDay moved to C.
-	* library/tzdata: Regenerated from Olson's tzdata2005p.tar.gz - the
-	'systemv' changes appear not to affect Tcl's processing of the dates.
-
-2005-12-05  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/configure.in: move check for fts API to configure.in and run it
-	* unix/tcl.m4:       on all platforms, since Linux glibc2 and *BSDs
-	also have this; using fts is more efficient than a recursive
-	opendir/readdir.
-	* unix/tclUnixFCmd.c (TraverseUnixTree): add support to fts code for
-	platforms with stat64.
-	* unix/configure:
-	* unix/tclConfig.h.in: regen.
-
-2005-12-05  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/configure:     Use fts file API on Darwin if available.
-	* unix/tcl.m4:        Addresses file delete issues in readdir noted
-	* unix/tclUnixFCmd.c: in [Bug 1034337]. (steffen)
-	Remove redundant stat call for each file in DoCopyFile. (steffen)
-
-2005-12-02  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclClock.c: Moved a tiny bit more of [clock format] from run
-	* library/clock.tcl: time to compile time, and fixed a l10n bug in the
-	process. [Bug 1371446]. Also, conditoned the call to SetupTimeZone to
-	speed the common case where TZData($timezone) already exists, and
-	achieved a puny speedup by making ::tcl::clock::getenv not throw
-	errors.
-	* unix/Makefile.in: Made some changes to support a 'make' command that
-	is present on some antiquated versions of Solaris.
-
-2005-12-01  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/clock.tcl: Continued rationalizing the code, eliminating
-	numerous redundant [mc] calls. Added another time boost by precompiling
-	a [::format] command to do the bulk of the work of [clock format].
-
-2005-12-01  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* unix/Makefile.in: Add remaining dependency info. While automated
-	maintenance of this information would be good, having it at all is much
-	better than a poke in the eye with a sharp stick...
-
-2005-12-01  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclClock.c: fix warning.
-
-	* unix/tcl.m4 (Darwin): fix error when MACOSX_DEPLOYMENT_TARGET unset
-	* unix/configure: regen.
-
-2005-11-30  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* unix/Makefile.in: Add dependency information relating to tclCompile.h
-	since when the list of opcodes changes it is usually useful to rebuild
-	everything that depends on it (but which is nonetheless a small
-	fraction of the total set of Tcl source files).
-
-	***POTENTIAL INCOMPATIBILITY*** for bytecode savers/loaders. See below
-
-	* generic/tclCompCmds.c (TclCompileSwitchCmd): Arrange for very simple
-	[switch] invokations to be compiled into hash lookups into jump tables;
-	only a very specific kind of [switch] can be safely compiled this way,
-	but that happens to be the most common kind. This makes around 5-10%
-	difference to the speed of execution of clock.test.
-	* generic/tclExecute.c (TEBC:INST_JUMP_TABLE): New instruction to allow
-	for jumps to locations looked up in a hashtable. Requires a new AuxData
-	type, tclJumptableInfoType (supported by the functions DupJumptableInfo
-	and FreeJumptableInfo in tclCompCmds.c) so anything that saves bytecode
-	containing this *must* be updated!
-
-2005-11-30  Kevin Kenny  <kennykb@acm.org>
-
-	* generic/tclClock.c: Fixed a bad refcount in previous commit that led
-	to a corrupted heap. Also silenced a warning that some compilers gave
-	about the excessively long constant for JULIAN_SEC_POSIX_EPOCH. Also
-	fixed a bug where [clock format] would fail in the :localtime zone for
-	times before the Posix Epoch. Thanks to Miguel Sofer for pointing out
-	all of these. Also rationalized the code a little bit by moving parts
-	of [clock scan] into C, eliminating some code that was duplicated in
-	the C and Tcl layers.
-
-2005-11-29  Kevin Kenny  <kennykb@acm.org>
-
-	* generic/tclBasic.c:	Moved a big part of [clock format] down
-	* generic/tclClock.c:   to the C level in order to make it go faster.
-	* generic/tclInt.h:     Preliminary measurements suggest that it
-	* generic/clock.tcl:    more than doubles in speed with this change.
-
-2005-11-29  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclCmdIL.c (Tcl_LsearchObjCmd): Allow [lsearch -regexp] to
-	process REs that contain backreferences. This expensive mode of
-	operation is only used if the RE would otherwise cause a compilation
-	failure. [Bug 1366683]
-
-2005-11-28  Kevin Kenny  <kennykb@acm.org>
-
-	* tools/tclZIC.tcl (convertTimeOfDay): Corrected a typo that caused
-	wrong DST transitions in any time zone where the transition is
-	specified as local Standard Time (as opposed to wall-clock or UTC).
-	(Also updated the code to be bignum-safe.)
-	* tests/clock.test (clock-51.1): Added regression test for the above.
-	* library/tzdata: Updated to Olson's 'tzdata2005o' (changes for Cuba,
-	Nicaragua, Jordan, and Georgia) and regenerated. Thanks to Paul
-	Mackerras for reporting this problem.
-
-2005-11-27  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tcl.m4 (Darwin): add 64bit support, check for Tiger copyfile(),
-	add CFLAGS to SHLIB_LD to support passing -isysroot in env(CFLAGS) to
-	configure (flag can't be present twice, so can't be in both CFLAGS and
-	LDFLAGS during configure), don't use -prebind when deploying on 10.4,
-	define TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING (rdar://3171542).
-	(SC_ENABLE_LANGINFO, SC_TIME_HANDLER): add/fix caching, fix obsolete
-	autoconf macros. Sync with tk/unix/tcl.m4.
-
-	* unix/configure.in: fix obsolete autoconf macros, sync gratuitous
-	formatting/ordering differences with tk/unix/configure.in.
-
-	* unix/Makefile.in: add CFLAGS to tclsh/tcltest link to make executable
-	linking the same as during configure (needed to avoid losing any linker
-	relevant flags in CFLAGS, in particular flags that cannot be in
-	LDFLAGS). Avoid concurrent linking of tclsh and compiling of
-	tclTestInit.o or xtTestInit.o during parallel make.
-	(checkstubs, checkdoc, checkexports): dependency and Darwin fixes
-	(dist): add new macosx files.
-
-	* unix/tclLoadDyld.c (TclpDlopen): use NSADDIMAGE_OPTION_WITH_SEARCHING
-	on second NSAddImage only. [Bug 1204237]
-	(TclGuessPackageName): should not be MODULE_SCOPE.
-	(TclpLoadMemory): ppc64 and endian (i386) fixes, add support for
-	loading universal (fat) bundles from memory.
-
-	* unix/tclUnixFCmd.c:
-	* macosx/tclMacOSXFCmd.c: ppc64 and endian (i386) fixes.
-	(TclMacOSXCopyFileAttributes): add support for new Tiger copyfile() API
-	to enable copying of xattrs & ACLs by [file copy].
-
-	* generic/tcl.h: add Darwin specifc configure overrides for TCL_WIDE
-	defines to support fat compiles of ppc and ppc64 at the same time,
-	(replaces Darwin CVS fix by emoy, rdar://3693001). add/correct location
-	of version numbers in macosx files.
-
-	* generic/tclInt.h: clarify fat compile comment.
-
-	* unix/tclUnixPort.h: add Darwin specifc configure overrides to support
-	fat compiles, where configure runs only once for multiple architectures
-	(replaces Darwin CVS fix by emoy, rdar://3693001).
-
-	* macosx/tclMacOSXBundle.c:
-	* macosx/tclMacOSXNotify.c:
-	* unix/tclUnixNotfy.c:
-	* unix/tclUnixPort.h: fix #include order to support compile time
-	override of HAVE_COREFOUNDATION in tclUnixPort.h when building for
-	ppc64
-
-	* macosx/Tcl.pbproj/default.pbxuser (new file):
-	* macosx/Tcl.pbproj/jingham.pbxuser:
-	* macosx/Tcl.pbproj/project.pbxproj:
-	* macosx/Tcl.xcode/default.pbxuser (new file):
-	* macosx/Tcl.xcode/project.pbxproj (new file):
-	* macosx/Tcl.xcodeproj/default.pbxuser (new file):
-	* macosx/Tcl.xcodeproj/project.pbxproj (new file): new/updated
-	projects for Xcode 2.2 on 10.4, Xcode 1.5 on 10.3 & ProjectBuilder on
-	10.2, with native tcltest targets and support for universal (fat)
-	compiles.
-
-	* macosx/README: clarification/cleanup, document new Xcode projects and
-	universal (fat) builds via CFLAGS (i.e. all of ppc ppc64 i386 at once).
-
-	* unix/Makefile.in:
-	* unix/aclocal.m4:
-	* unix/configure.in:
-	* unix/dltest/Makefile.in:
-	* macosx/configure.ac (new file): add support for inclusion of
-	unix/configure.in by macosx/configure.ac, allows generation of a config
-	headers enabled configure script in macosx (required by Xcode
-	projects).
-
-	* macosx/GNUmakefile: rename from Makefile to avoid overwriting by
-	configure run in tcl/macosx, add support for reusing configure cache,
-	build target fixes, remove GENERIC_FLAGS override now handled by
-	tcl.m4.
-
-	* generic/tcl.decls: add Tcl_Main declaration as comment to avoid
-	'checkstubs' target complaining about it missing from stubs.
-
-	* generic/regex.h:
-	* generic/tclDate.c:
-	* generic/tclEnv.c:
-	* generic/tclGetDate.y:
-	* generic/tclIOUtil.c:
-	* generic/tclObj.c:
-	* generic/tclStubInit.c:
-	* generic/tclStubLib.c:
-	* generic/tclPathObj.c:
-	* generic/tclThreadAlloc.c:
-	* generic/tclThreadStorage.c:
-	* generic/tclTrace.c:
-	* generic/tclVar.c:
-	* generic/tommath.h:
-	* tools/fix_tommath_h.tcl:
-	* unix/tclUnixFCmd.c: ensure externally visible symbols not contained
-	in stubs table are declared as MODULE_SCOPE (or as static if not used
-	outside of own source file). These changes allow 'make checkstubs' to
-	complete without error on Darwin with gcc 4.
-
-	* generic/rege_dfa.c (getvacant):
-	* generic/regexec.c (cfind):
-	* generic/tclCompExpr.c (CompileSubExpr):
-	* generic/tclNamesp.c (NamespaceEnsembleCmd):
-	* unix/tclUnixChan.c (TclUnixWaitForFile): initialise variables to
-	silence gcc 4 warnings.
-
-	* generic/tclExecute.c (TclExecuteByteCode): fix unused variable
-	warning when NO_WIDE_TYPE is defined.
-
-	* generic/regguts.h: only #define NDEBUG if not already #defined.
-
-	* unix/tclUnixNotfy.c:
-	* macosx/tclMacOSXNotify.c: sync whitespace & comments.
-
-	* unix/tclUnixPort.h:
-	* win/tclWinPort.h: remove declaration of obsolete&unused TclpMutex
-	API.
-
-	* unix/configure:
-	* unix/tclConfig.h.in: regen.
-
-2005-11-21  Andreas Kupries  <andreask@activestate.com>
-
-	* unix/Makefile.in (install-libraries): Updated Makefile to new
-	* win/Makefile.in (install-libraries):  version of the http package.
-	This fixes the ifneeded/provide mismatch reported when trying to
-	require http. Should we maybe try to automatically extract the version
-	number from the http code to prevent future breakage ?
-
-	This follows the update of the version number by dgp on Nov 15 (No
-	entry found in the ChangeLog).
-
-2005-11-20  Joe English  <jenglish@users.sourceforge.net>
-
-	* generic/tclStubLib.c: Don't set tclStubsPtr to 0 when
-	Tcl_PkgRequireEx() fails [Fix for [Bug 1091431] "Tcl_InitStubs failure
-	crashes wish"]
-
-2005-11-18  Miguel Sofer  <msofer@users.sf.net>
-
-	* tests/trace.test (trace-34.5): [Bug 1047286], added a second test
-	illustrating the role of "ns in callStack" in the ns's visibility
-	during deletion traces.
-
-2005-11-18  Kevin B. Kenny  <kennykb@acm.org>
-
-	* doc/clock.n: Restored several missing lines near the %w format group
-	so that %w and %W are documented with their actual behaviour. [Bug
-	1359183]
-
-2005-11-18  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclIO.c (TclFinalizeIOSubsystem): preserve statePtr until we
-	retrieve the next statePtr from it.
-
-2005-11-18  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclObj.c (GetBignumFromObj): replace NULL with
-	tclEmptyStringRep to stop memcpy from complaining in a debug build
-	(the corresponding branch is eliminated by the optimiser otherwise).
-
-2005-11-18  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c (TclFinalizeIOSubsystem): Applied Pat Thoyts' patch
-	for [Bug 1359094]. This moves the retrieval of the next channel state
-	to the end of the loop, as the called closeproc may close other
-	channels, i.e. modify the list we are iterating, invalidating any
-	pointer retrieved earlier.
-
-2005-11-18  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclListObj.c:	Restored the SetListFromAny routine to the
-	* generic/tclObj.c:	"list" Tcl_ObjType, and restored the
-	Tcl_RegisterObjType() call for "list". This addresses the needs of some
-	"bridge" extensions to examine whether the Tcl_ObjType of a Tcl_Obj is
-	that of the "list" Tcl_ObjType.
-
-2005-11-18  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* library/http/http.tcl (http::geturl): Improved syntactic validation
-	of URLs, and better error messages in some cases. [Bug 1358369]
-
-2005-11-17  Miguel Sofer  <msofer@users.sf.net>
-
-	* tests/namespace.test: fix comment
-
-2005-11-14  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStrToD.c:	More data in the "can't happen" Tcl_Panic to
-	aid debugging.
-
-	* generic/tclBasic.c (CallCommandTraces): Save/restore the interp
-	result during traces to fix [Bug 1355342].
-
-2005-11-13  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclInt.h:
-	* generic/tclNamesp.c:
-	* tests/namespace.test: fix for [Bug 1354540] and [Bug 1355942]. The
-	new tests 7.3-6 and the modified 51.13 fail due to the unrelated [Bug
-	1355342]
-
-	* tests/trace.test: added tests 20.13-16 for [Bug 1355342]
-
-2005-11-12  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclBasic.c (Tcl_DeleteCommandFromToken):
-	* generic/tclObj.c (Tcl_GetCommandFromObj): more partial fixes for
-	[Bug 1354540] - making sure that cached references to a command being
-	deleted cannot be made reusable by a delete trace.
-
-2005-11-12  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclNamesp.c (Tcl_FindCommand): Do not find commands in dead
-	namespaces on the path. Partial fix for [Bug 1354540].
-
-2005-11-11  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclInt.h:	Revised TclParseNumber interface to enable
-	* generic/tclScan.c:	revision to the [scan] command implementation
-	* generic/tclStrToD.c:	to permit tests scan-4.44,55 to pass again.
-	[Bug 1348067].
-
-2005-11-11  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclBasic.c (Tcl_DeleteCommandFromToken):
-	* generic/tclObj.c (Tcl_GetCommandFromObj): bump the cmd epoch early
-	to insure that cached references to this command are invalidated.
-	Partial fix for [Bug 1352734] - at least insures that namespace-51.13
-	does not cause a panic. The test is still marked as knownbug, pending
-	resolution of what is actually the correct return value ([Bug
-	1354540])
-
-2005-11-09  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclTimer.c: Changed [after] so that it behaves correctly
-	* tests/timer.test:   with negative arguments [Bug 1350293] and
-	arguments that overflow a 32-bit word. [Bug 1350291]
-
-2005-11-08  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/compile.test:	Updated tests with changed behavior
-	* tests/execute.test:	due to addition of bignums.
-	* tests/expr-old.test:
-	* tests/expr.test:
-	* tests/parseExpr.test:
-	* tests/platform.test:
-	* tests/string.test:
-
-2005-11-08  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/tclUnixFCmd.c (MAX_READDIR_UNLINK_THRESHOLD): reduce to 130
-	based on errors seen on OS X 10.3 with lots of links in a dir.
-	[Bug 1034337 followup]
-
-2005-11-09  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* unix/Makefile.in (gdb-test): Added a new target to make it easier to
-	run the test suite inside a debugger.
-
-2005-11-08  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/compExpr-old.test:	Updated tests with changed behavior due
-	to addition of bignums.
-
-	* tests/expr.test:      Portable tests expr-46.13-18 [Bug 1341368]
-
-	* generic/tclPkg.c:	Corrected inconsistencies in the value returned
-	* tests/pkg.test:	by Tcl_PkgRequire(Ex) so that the returned
-	values will always agree with what is stored in the package database.
-	This way repeated calls to Tcl_PkgRequire(Ex) have the same results.
-	Thanks to Hemang Lavana. [Bug 1162286].
-
-2005-11-08  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclTrace.c (TraceVarEx): Factor out heart of Tcl_TraceVar2
-	(TclTraceVariableObjCmd,TraceVarProc): Use the new internal API to
-	arrange for the clientData to be cleaned up at the same time as the
-	rest of the main trace record. This simplifies the code a bit at the
-	same time.
-
-2005-11-07  Miguel Sofer  <msofer@users.sf.net>
-
-	* tests/trace.test (trace-13.2-4): added tests to detect leak, see [Bug
-	1348775]. The recently added trace-8.9 test is now 13.4.
-
-2005-11-07  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* tests/dict.test (dict-19.2): arrange for the stress testing code to
-	only stress test the dict code and not the trace code as well. [Bug
-	1342858]
-
-2005-11-05  Miguel Sofer  <msofer@users.sf.net>
-
-	* tests/trace.test (trace-8.9): added test to detect leak, see [Bug
-	1348775].
-
-2005-11-04  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* win/tclWinPort.h:  Applied [Patch 1267871] by Matt Newman for
-	* win/tclWinPipe.c:  extended error code support on Windows.
-	* tests/exec.test:   Tests for extended error codes.
-	* generic/tclPipe.c: Permit long codes (platform macros permitting).
-
-2005-11-04  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclBinary.c:
-	* generic/tclCmdAH.c:
-	* generic/tclCmdIL.c:
-	* generic/tclCmdMZ.c:
-	* generic/tclDictObj.c:
-	* generic/tclExecute.c:
-	* generic/tclIOCmd.c:
-	* generic/tclLink.c:
-	* generic/tclTest.c:
-	* generic/tclVar.c: fix for [Bug 1334947]. The functions TclPtrSetVar,
-	Tcl_ObjSetVar2 and Tcl_SetVar2Ex now always consume the newValuePtr
-	argument - i.e., they will free a 0-refCount object if they failed to
-	set the variable. Fixed all callers in the core.
-
-2005-11-04  Kevin Kenny  <kennykb@acm.org>
-
-	* generic/tclGetDate.y: Added abbreviations for the Korean
-	* library/clock.tcl:    timezone. [Patch 1298737]
-	* generic/tclDate.c:    Regenerated.
-
-	* tools/findBadExternals.tcl: Added this script, which locates external
-	symbols that do not begin with 'Tcl' or 'tcl' and hence might be in
-	conflict with other link libraries. Thanks to George Peter Staplin for
-	the idea and the initial version of the script. [Bug 1263012]
-
-	* unix/Makefile.in: Trimmed a bunch of fat out of the tommath/
-	directory in 'make dist'. [RFE 1333318]
-
-	* unix/tcl.m4: Added code to enable [load] on LynxOS. Thanks to
-	heidibr@users.sf.net for the patch. [Bug 1163896]. Removed the last
-	vestiges of GNU dld from the Unix build [RFE 1071992].
-
-	* unix/tclLoadDld.c: Removed.
-	* unix/configure: Regenerated.
-
-2005-11-04  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclInt.h:
-	* generic/tclNamesp.c:
-	* generic/tclVar.c:
-	* tests/trace.test: fix for [Bugs 1338280/1337229]; changed to use the
-	same approach as the 8.4 patch in the ticket (i.e., removed the patch
-	committed on 2005-31-10).
-
-2005-11-03  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* win/tclWin32Dll.c:   Applied [Patch 1256872] to provide unicode
-	* win/tclWinConsole.c: support in the console on suitable systems.
-	* win/tclWinInt.h:     Patch by Anton Kovalenko
-
-2005-11-02  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	Applied [Patch 1096916] to support building with MSVC 8.
-	* generic/regerror.c: Avoid use of reserved word.
-	* generic/tcl.h:      Select the right Tcl_Stat structure
-	* generic/tclDate.c:  Casts to handle 64 bit time_t case.
-	* tests/env.test:     Include essential envvar on Win32
-	* win/nmakehlp.c:     Handle new return codes.
-	* win/makefile.vc:    Use the selected options.
-	* win/rules.vc:       Check options are applicable
-	* win/tclWinPort.h:   Disable deprecated function warnings
-	* win/tclWinSock.c:   Provide default value to avoid warning.
-	* win/tclWinTime.c:   Add casts to handle 64bit time_t type.
-
-2005-11-01  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclTrace.c (TclCheckExecutionTraces): Corrected mistaken
-	assumption that all command traces are set at the script level.
-	Report/fix from Jacques H. de Villiers. [Bug 1337941]
-
-	* tests/unixNotfy.test (1.1,2):	Update error message whitespace to
-	match changes in code.
-
-	* tests/expr-old.test (expr-32.52): Use int(.) to restrict result of
-	left shift to the C long range.
-
-	* expr.test (expr-46.13): Added test that illustrates shortcoming of
-	[Patch 1340260].
-
-2005-10-31  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclNamesp.c: fix for [Bugs 1338280/1337229]. Thanks Don.
-	* tests/trace.test: fix duplicate test numbers
-
-2005-10-31  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* win/tclWinSerial.c (SerialSetOptionProc): Cleaned up option parsing
-	to produce more informative error messages and separate error and
-	non-error code paths better.
-	* tests/ioCmd.test (iocmd-8-19): Updated.
-
-2005-10-29  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclTrace.c (TraceVarProc): [Bug 1337229], partial fix. Ensure
-	that a second call with TCL_TRACE_DESTROYED does not lead to a second
-	call to Tcl_EventuallyFree(). It is still true that that second call
-	should not happen, so the bug is not completely fixed.
-	* tests/trace.test (test-18.3-4): added tests for [Bug 1337229] and
-	[Bug 1338280].
-
-2005-10-23  Vince Darley  <vincentdarley@sourceforge.net>
-
-	* generic/tclFileName.c: fix to memory leak in glob [Bug 1335006] Obj
-	leak detection and patch by Eric Melbardis.
-
-	* tests/fCmd.test:
-	* win/tclWinFile.c: where appropriate windows API is available, try to
-	set 'nlink' and 'ino' stat fields (previously they were always 0). [Bug
-	1325803]
-
-2005-10-22  Miguel Sofer  <msofer@users.sf.net>
-
-	* tests/foreach.test (foreach-8.1): added test for [Bug 1189274]
-
-2005-10-22  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c (INST_INCR_*): fixed [Bug 1334570]. Obj leak
-	detection and patch by Eric Melbardis.
-
-2005-10-21  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclStrToD.c (RefineApproximation): Plugged a memory leak
-	where two intermediate results were not freed on one return path. [Bug
-	1334461]. Thanks to Eric Melbardis for the patch.
-
-2005-10-21  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/binary.n: Clarify that virtually all code that uses the 'h'
-	format in [binary scan] should be using the 'H' format instead. It is
-	nearly always a bug to use the other!
-
-2005-10-20  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclListObj.c (TclLsetFlat):
-	* tests/lset.test (lset-10.3): fixed handling of unshared lists with
-	shared sublists, [Bug 1333036] reported by neuronstorm.
-
-2005-10-19  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclIORChan.c (PassReceivedError,PassReceivedErrorInterp):
-	Fix crash caused by passing -1 as the length to TclNewStringObj(). Only
-	Tcl_NewStringObj (the function call, not the macro) handles that sort
-	of thing correctly. This makes ioCmd.test pass again.
-
-2005-10-19  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclClock.c:		Removed some dead code.
-	* generic/tclCmdIL.c:
-	* generic/tclCompCmds.c:
-	* generic/tclDictObj.c:
-	* generic/tclExecute.c:
-	* generic/tclLiteral.c:
-	* generic/tclParseExpr.c:
-	* generic/tclScan.c:
-	* generic/tclUtil.c:
-	* generic/tclVar.c:
-
-2005-10-19  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclIORChan.c: General cleanup, removing checks that are
-	unnecessary due to the general contracts of other functions in the
-	core, converting to using ANSI declarations, etc. Note that nearly the
-	whole file has changed, but it is often just cosmetic.
-
-2005-10-19  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c (INST_DICT_APPEND, INST_DICT_LAPPEND): fixed
-	faulty peephole optimisation that can cause crashes, [Bug 1331475]
-	reported by Aric Bills.
-
-2005-10-18  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c: Added optimization for I32L64 systems to avoid
-	using bignums to perform int multiplies. The improvement shows up most
-	dramatically in tclbench's matrix.bench.
-
-2005-10-15  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c:	Restored some optimizations of the
-	INST_INCR_SCALAR1_IMM opcode.
-
-2005-10-14  Zoran Vasiljevic  <vasiljevic@users.sourceforge.net>
-
-	* generic/tclIO.c (Tcl_ClearChannelHandlers): removed change dated
-	2005-10-04 (see below). Look into [Bug 1323992] for detailed
-	discussion.
-
-	* generic/tcl.h: Fixed bad definition of CRTEXPORT which should have
-	been CRTIMPORT rather. This broke compilation of generic/tclMain.c and
-	was probably introduced by mistake while applying the fix for [Bug
-	1256937] below.
-
-2005-10-14  Kevin Kenny  <kennykb@acm.org>
-
-	* generic/tclExecute.c (TclIncrObj, TclExecuteByteCode): Tidied up a
-	couple of infelicitous do {...} while(0) constructs.
-
-2005-10-14  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* generic/tcl.h:     Fix for [Bug 1256937] - correctly decorate
-	* generic/tclMain.c: imported functions from msvcrt in static builds.
-
-2005-10-13  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tests/format.test: "Forward"-port of test updates relating to [Bug
-	1284178]. The bug itself was fixed by TIP#237.
-
-2005-10-13  Zoran Vasiljevic  <vasiljevic@users.sourceforge.net>
-
-	* generic/tclIO.c (Tcl_ClearChannelHandlers): temporary ifdef
-	TCL_THREADS changes done to de-activate pending event processing when
-	channel is being closed/cutted.
-
-2005-10-13  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c:	Removed obsolete use of NO_ERRNO_H.
-	* tools/man2tcl.c:
-	* unix/tcl.m4:
-	* unix/tclConfig.h.in:
-	* win/configure.in:
-
-	* unix/configure:	autoconf-2.59
-	* win/configure:
-
-	* compat/tclErrno.h:	Removed obsolete file.
-
-	* generic/tclStrToD.c (TclParseNumber): Missing goto caused crash when
-	parsing "Na". [Bug 1325833]
-
-2005-10-12  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c (GetNumberFromObj):	Restored some lost
-	optimizations for empty string values. We avoid cost of a call to
-	TclParseNumber just to tell us an empty string isn't a number.
-
-2005-10-12  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclPathObj.c (SetFsPathFromAny): TclGetString macro must not
-	be combined with post-increment arguments. [Bug 1325099]
-
-2005-10-12  Kevin Kenny  <kennykb@acm.org>
-
-	* generic/tclExecute.c (Tcl_ExecuteByteCode, TclIncrObj): Several
-	common cases inlined in hopes of gaining a little performance in [incr]
-
-2005-10-10  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCompCmds.c: New convenience macro CompileTokens().
-
-2005-10-10  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c: Corrections to the NO_WIDE_TYPE build. Also
-	added missing "break" to a switch that broke wide XOR operations.
-
-2005-10-10  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclInterp.c (DeleteScriptLimitCallback)
-	(SetScriptLimitCallback): Improve the interlocking between the script
-	limit callback record and the hash table of current such records, to
-	prevent crashes in callbacks that create callbacks.
-	(Tcl_LimitSetTime): Reset the correct flag. Problem reported by
-	Nicolas Castagne <castagne@imag.fr> on comp.lang.tcl
-
-2005-10-10  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c: Fixing errors in last commit. (Two commits, the
-	second removes wrong comment).
-
-2005-10-09  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclBasic.c:
-	* generic/tclExecute.c:
-	* generic/tclStrToD.c:
-	* generic/tclStringObj.c: Initialise variables to avoid compiler
-	warnings ([Bug 1320818] among others).
-
-2005-10-08  Don Porter  <dgp@users.sourceforge.net>
-
-	TIP#237 IMPLEMENTATION
-
-	[kennykb-numerics-branch] Resynchronized with the HEAD; at this
-	checkpoint [-rkennykb-numerics-branch-20051008], the HEAD and
-	kennykb-numerics-branch contain identical code.
-
-	[kennykb-numerics-branch]	Merge updates from HEAD
-
-	* generic/tclExecute.c: More performance macros and special handling of
-	the wide integer type for performance on 32-bit systems.
-
-2005-10-07  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclExecute.c:	Macro GetNumberFromObj() is version of
-	TclGetNumberFromObj() that saves a function call for common uses.
-
-	* generic/tclInt.h:	Made #undef NO_WIDE_TYPE the default on 32-bit
-	systems. Being able to use 64-bit values without leaping to mp_int
-	should help with performance.
-
-	* generic/tclObj.c:	Bug fixes in the #undef NO_WIDE_TYPE
-	* generic/tclExecute.c:	configuration.
-
-	* generic/tclExecute.c: Improved performance of comparison opcodes and
-	bitwise operations and removed yet more dead code.
-
-2005-10-07  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/tclUnixFCmd.c (TraverseUnixTree): Adjust 2004-11-11 change to
-	* tests/fCmd.test (fCmd-20.2):           account for NFS special files
-	with a readdir rewind threshold. [Bug 1034337]
-
-2005-10-06  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclExecute.c:	Improved performance of INST_RSHIFT and
-	INST_LSHIFT.
-
-2005-10-05  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclExecute.c: Improved performance of INST_MULT, INST_DIV,
-	INST_ADD, and INST_SUB and replaced a "goto... label" with a "break
-	from loop" in TclIncrObj() and removed some dead code.
-
-2005-10-05  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclPipe.c (TclCreatePipeline): Fixed [Bug 1109294]. Applied
-	the patch provided by David Gravereaux.
-
-	* doc/CrtChannel.3: Fixed [Bug 1104682], by application of David
-	Welton's patch for it, and added a note about wideSeekProc.
-
-	* generic/tclIORChan.c (RcClose): Removed unreachable panic/return
-	statements. This fixes the remainder of [Bug 1286256].
-
-2005-10-05  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tests/env.test (env-6.1):
-	* win/tclWinPort.h: define USE_PUTENV_FOR_UNSET 1
-	* generic/tclEnv.c (TclSetEnv, TclUnsetEnv): add USE_PUTENV_FOR_UNSET
-	to existing USE_PUTENV define to account for various systems that have
-	putenv(), but can't unset env vars with it. Note difference between
-	Windows and Linux for actually unsetting the env var (use of '=').
-	Correct the resizing of the environ array. We assume that we are in
-	full ownership, but that's not correct.[Bug 979640]
-
-2005-10-04  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-	* generic/tclExecute.c: Updated TclIncrObj() to more efficiently add
-	native long integers. Also updated IllegalExprOperandType and the
-	INST_UMINUS, INST_UPLUS, INST_BITNOT, and INST_TRY_CVT_TO_NUMERIC
-	sections for performance.
-
-	* generic/tclBasic.c: Updated more callers to make use of
-	TclGetNumberFromObj. Removed some dead code.
-
-2005-10-04  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/tclWinSerial.c (SerialSetOptionProc): free argv [Bug 1067708]
-
-	* tests/http.test:              do not URI encode -._~ according
-	* library/http/http.tcl (init): to RFC3986. [Bug 1182373] (aho)
-
-	* unix/tclLoadShl.c (TclpDlopen): use DYNAMIC_PATH on second shl_load
-	only. [Bug 1204237]
-
-	* doc/scan.n: scan %[] requires "one or more chars" [Bug 1277503]
-
-	* tests/winFile.test (getuser): allow valid Windows usernames. [Bug
-	1311285]
-
-	* generic/tclParse.c (Tcl_ParseCommand): add code that recognizes {} in
-	addition to {expand} for word expansion (make with
-	-DALLOW_EMPTY_EXPAND).
-
-2005-10-04  Zoran Vasiljevic  <vasiljevic@users.sourceforge.net>
-
-	* generic/tclIO.c (Tcl_ClearChannelHandlers): now deletes any
-	outstanding timer for the channel. Also, prevents events still in the
-	event queue from triggering on the current channel.
-
-	* generic/tclTimer.c (Tcl_DeleteTimerHandler): bail out early if passed
-	NULL argument.
-
-2005-10-03  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclBasic.c:	Re-implemented ExprRoundFunc and
-	ExprEntierFunc to use TclGetNumberFromObj.
-
-	* generic/tclInt.h:	Added new routine TclGetNumberFromObj to
-	* generic/tclObj.c:	provide efficient access to the actual
-	internal rep of a numeric Tcl_Obj without conversions.
-
-2005-10-03  Kevin Kenny  <kennykb@acm.org>
-
-	* tools/loadICU.tcl:  Changed the file names of message catalogs to
-			      lowercase.
-	* tools/makeTestCases.tcl:
-	* library/tzdata/*:   Olson's tzdata2005n.tar.gz. Includes new DST
-	rules for USA and a number of changes to other locales.
-	* tests/clock.test:   Regenerated for new US DST rules.
-
-2005-09-30  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclMain.c: Separate encoding conversion of command line
-	arguments from list formatting. [Bug 1306162].
-
-2005-09-30  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclStringObj.c:	Bug fix: Missing cast to large enough
-	integral size before << operations led to broken [format %llx] results.
-	Thanks to Robert Henry for reporting the bug.
-
-2005-09-29  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* doc/mathfunc.n:   implementation for TIP #255, expr min/max
-	* library/init.tcl:
-	* tests/info.test, tests/expr-old.test:
-
-2005-09-27  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tcl.h:	Changed name of the new Tcl_Obj intrep field
-	* generic/tclObj.c:	from "bignumValue" to "ptrAndLongRep" as
-	* generic/tclProc.c:	described in TIP 237, and more suitable for
-	other more general uses.
-
-2005-09-27  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* tests/binary.test (binary-14.18): Added test for [Bug 1116542] though
-	the bug itself was already fixed by unrelated changes.
-
-2005-09-26  Kevin Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch] Merge updates from HEAD.
-
-2005-09-26  Kevin Kenny  <kennykb@acm.org>
-
-	* libtommath/:                   Updated to release 0.36.
-	* generic/tommath.h:             Regenerated.
-	* generic/tclTomMathInterface.h: Added ten missing aliases for mp_*
-	functions to avoid namespace pollution in Tcl's exported symbols. [Bug
-	1263012]
-
-2005-09-23  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* unix/Makefile.in:	Added -DMP_PREC=4 switch to all compiles so
-	* win/Makefile.in:	that minimum memory requirements of mp_int's
-	* win/makefile.vc:	will not be quite so large. [Bug 1299153].
-
-	* generic/tclStrToD.c:	Fixed memory leak. [Bug 1299803].
-	* generic/tclObj.c:
-
-2005-09-20  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclExecute.c:	Revise TclIncrObj() to call
-	Tcl_GetBignumAndClearObj.
-
-	* generic/tcl.decls:	Add Tcl_GetBignumAndClearObj.
-	* generic/tclObj.c:
-
-	* generic/tclDecls.h:	make genstubs
-	* generic/tclStubInit.c:
-
-2005-09-16  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclInt.h:		 Added TclBNInitBigNumFromWideInt() so
-	* generic/tclTomMathInterface.c: that every caller isn't required to
-	duplicate the sign logic to use the unsigned interface.
-
-	* generic/tclBasic.c:	Reduce the number of places where Tcl intrudes
-	* generic/tclExecute.c:	into the internal format details of the mp_int
-	* generic/tclObj.c:	struct.
-	* generic/tclStrToD.c:
-	* generic/tcLStringObj.c:
-
-	* generic/tclTomMath.h:	Added mp_cmp_d to routines from libtommath
-	* unix/Makefile.in:	used by Tcl.
-	* win/Makefile.in:
-	* win/makefile.vc:
-
-	* libtommath/bn_mp_add_d.c: Bug fix. For mp_add_d(&a, d, &c), when &a
-	has the value -d, then the value &c computed should be zero, but
-	mp_add_d was producing an inconsistent zero value with a sign field of
-	MP_NEG, something like a value of -0, which other routines in
-	libtommath can't handle.
-
-	* generic/tclExecute.c:	Dropped all creation of "bigOne" values and
-	just use tommath routines that accept the value "1" directly.
-
-2005-09-15  Miguel Sofer  <msofer@users.sf.net>
-
-	* doc/ParseCmd.3: copy/paste fix [Bug 1292427]
-
-2005-09-15  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]	Merge updates from HEAD.
-
-	* generic/tclStringObj.c (TclAppendFormattedObjs):	Revision to
-	eliminate one round of string copying.
-
-	* generic/tclBasic.c:	More callers of TclObjPrintf and
-	* generic/tclCkalloc.c:	TclFormatToErrorInfo.
-	* generic/tclCmdMZ.c:
-	* generic/tclExecute.c:
-	* generic/tclIORChan.c:
-	* generic/tclMain.c:
-	* generic/tclProc.c:
-	* generic/tclTimer.c:
-	* generic/tclUtil.c:
-	* unix/tclUnixFCmd.c
-
-	* unix/configure:	autoconf-2.59
-
-2005-09-15  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* unix/tcl.m4 (SC_TCL_EARLY_FLAGS): Added extra hack to allow Tcl to
-	transparently open large files on RHEL 3. [Bug 1287638]
-
-2005-09-14  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStringObj.c:	Bug fixes: ObjPrintfVA needed to
-	support "*" fields and needed to interpret precision limits on %s
-	conversions as a maximum number of bytes, not Tcl_UniChars, to take
-	from the (char *) argument.
-
-	* generic/tclBasic.c:	Updated several callers to use
-	* generic/tclCkalloc.c: TclFormatToErrorInfo() and/or
-	* generic/tclCmdAH.c:	TclObjPrintf().
-	* generic/tclCmdIL.c:
-	* generic/tclCmdMZ.c:
-	* generic/tclDictObj.c:
-	* generic/tclExecute.c:
-	* generic/tclIORChan.c:
-	* generic/tclIOUtil.c:
-	* generic/tclNamesp.c:
-	* generic/tclProc.c:
-
-	* library/init.tcl:	Keep [unknown] in sync with errorInfo
-	formatting rules.
-
-2005-09-13  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	First caller of TclFormatToErrorInfo.
-
-	* generic/tclInt.h:		Using stdarg.h conventions, add more
-	* generic/tclStringObj.c:	fixed arguments to TclFormatObj() and
-	TclObjPrintf(). Added new routine TclFormatToErrorInfo().
-
-	* generic/tcl.h:	Explicitly standardized on the use of stdarg.h
-	* generic/tclBasic.c:	conventions for functions with variable number
-	* generic/tclInt.h:	of arguments. Support for varargs.h has been
-	* generic/tclPanic.c:	implicitly gone for some time now. All
-	* generic/tclResult.c:	TCL_VARARGS* macros purged from Tcl sources,
-	* generic/tclStringObj.c:	leaving only some deprecated #define's
-	* tools/genStubs.tcl:	in tcl.h for the sake of older extensions.
-
-	* generic/tclDecls.h:	make genstubs
-
-	* doc/AddErrInfo.3:	Replaced all documented requirement for use of
-	* doc/Eval.3:		TCL_VARARGS_START() with requirement for use of
-	* doc/Panic.3:		va_start().
-	* doc/SetResult.3:
-	* doc/StringObj.3:
-
-2005-09-12  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]	Merge updates from HEAD.
-
-	* generic/tclCmdAH.c:		Added support for the "ll" width
-	* generic/tclStringObj.c:	specifier to [format].
-
-	* generic/tclStringObj.c (TclAppendFormattedObjs):	Bug fix: make
-	sure %ld formats force the collection of a wide value, when the value
-	could be a different long.
-
-2005-09-09  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIORChan.c (RcDecodeEventMask): Added missing type
-	declaration for the parameter 'mask'. This fixes the [Bug 1286256]. The
-	other warning can be removed only by removing the panic/return code.
-
-2005-09-09  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]	Merge updates from HEAD.
-
-2005-09-09  Kevin Kenny  <kennykb@acm.org>
-
-	* generic/tclStringObj.c:  Added two missing casts to silence messages
-	from MSVC6.
-
-2005-09-09  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclInt.h:		New internal routine TclObjPrintf()
-	* generic/tclStringObj.c:	is similar to TclFormatObj() but
-	accepts arguments in non-Tcl_Obj format.
-
-	* generic/tclInt.h:		New internal routines TclFormatObj()
-	* generic/tclStringObj.c:	and TclAppendFormattedObjs() to offer
-	sprintf()-like means to append to Tcl_Obj. Work in progress toward
-	[RFE 572392].
-
-	* generic/tclCmdAH.c:	Compiler directive NEW_FORMAT when #define'd
-	directs the [format] command to be implemented in terms of the new
-	TclAppendFormattedObjs() routine.
-
-2005-09-08  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	TIP#254 IMPLEMENTATION
-
-	* generic/tclLink.c (LinkTraceProc,ObjValue): Added many new of C var
-	* generic/tcl.h:			      to link to, making it
-	* doc/LinkVar.3:			      easier to seamlessly
-	* generic/tclTest.c (TestlinkCmd):	      couple C code and Tcl
-	* tests/link.test:			      scripts in an
-	application. [Patch 1242844]
-
-2005-09-07  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclUtf.c (Tcl_UniCharToUtf):	Corrected handling of negative
-	* tests/utf.test (utf-1.5):	    Tcl_UniChar input value. Incorrect
-	handling was producing byte sequences outside of Tcl's legal internal
-	encoding. [Bug 1283976].
-
-2005-09-06  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclInt.h (List): Added flag to keep track of whether a list
-	* generic/tclListObj.c:    with a string rep is provably canonical.
-	* generic/tclUtil.c (Tcl_ConcatObj):  Do efficient concatenation and
-	* generic/tclBasic.c (Tcl_EvalObjEx): evaluation when the list is
-	canonical, and not just when the list is pure. This should make the
-	"pure list" hacking introduced in 8.3 much more robust.
-
-2005-09-05  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclObj.c (pendingObjDataKey): Added missing 'static' to stop
-	symbol from leaking outside the Tcl library. [Bug 1263012]
-
-2005-09-02  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclScan.c:	Bug fix: The %o, %x, %i formats of [scan] must
-	not accept any 0b or 0o prefixes. [scan $s %o] must continue to work
-	even with KILL_OCTAL enabled.
-
-	* generic/tclInt.h:	Added TCL_PARSE_SCAN_PREFIXES to the flags
-	* generic/tclStrToD.c:	accepted by TclParseNumber.
-
-2005-09-01  Andreas Kupries  <andreask@activestate.com>
-
-	* unix/tclUnixSock.c (InitializeHostName): Synchronized use of static
-	modifier in declaration and definition of function.
-
-	* unix/tclUnixChan.c (FileTruncateProc): Synchronized use of static
-	modifier in declaration and definition of function.
-
-	* generic/tclResult.c (ReleaseKeys): Synchronized use of static
-	modifier in declaration and definition of function.
-
-	* generic/tclListObj.c (NewListIntRep): Synchronized use of static
-	modifier in declaration and definition of function.
-
-	* generic/tclEncoding.c (InitializeEncodingSearchPath): Synchronized
-	use of static modifier in declaration and definition of function.
-
-	* generic/tclEncoding.c (FillEncodingFileMap): Synchronized use of
-	static modifier in declaration and definition of function.
-
-	* generic/tclIORChan.c (RcNewHandle): Synchronized use of static
-	modifier in declaration and definition of function.
-
-2005-09-01  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclObj.c:	TclParseNumber calls meant to parse an integer
-	value now pass the TCL_PARSE_INTEGER_ONLY flag.
-
-	* generic/tclScan.c:	Extended [scan] to accept the %lld, %llo, %llx,
-	and %lli formats. Numeric scanning is now done via TclParseNumber calls
-
-	* generic/tclInt.h:	Extended TclParseNumber to accept new flag
-	* generic/tclStrToD.c:	values TCL_PARSE_INTEGER_ONLY,
-	TCL_PARSE_OCTAL_ONLY, and TCL_PARSE_HEXIDECIMAL_ONLY, to give caller
-	more control over the parsing rules.
-
-2005-08-31  Vince Darley  <vincentdarley@sourceforge.net>
-
-	* doc/FileSystem.3:
-	* unix/tclUnixFile.c:
-	* windows/tclWinFile.c: clarify that Tcl_FSMatchInDirectory may be
-	called with a NULL interpreter, and fix the code so this is allowed.
-	Tcl's core itself (tclEncoding.c:FillEncodingFileMap()) calls this
-	with a NULL interpreter.
-
-2005-08-30  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclObj.c:	Extended bignum support to include bignums so
-	large they will not pack into a Tcl_Obj. When they outgrow Tcl's string
-	rep length limits, a panic will result.
-
-	* generic/tclTomMath.h:	Added mp_sqrt to routines from
-	* unix/Makefile.in:	libtommath used by Tcl.
-	* win/Makefile.in:
-	* win/makefile.vc:
-
-	* generic/tclBasic.c:	Extended sqrt(.) so that range covers the
-	entire double range, accepting as many bignums in the domain as that
-	will allow.
-
-2005-08-29  Andreas Kupries  <andreask@activestate.com>
-
-	* library/tm.tcl (::tcl::tm::roots): Accepted Don Porter's patch for
-	[Bug 1189657]. Syncs the implementation to the specification (TIP #189)
-
-2005-08-29  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]	Merge updates from HEAD.
-
-	* generic/tclBasic.c:	Restored round(.) to the Tcl 8.4 rules.
-
-2005-08-29  Kevin Kenny  <kennykb@acm.org>
-
-	* generic/tclBasic.c (ExprMathFunc): Restored "round away from zero"
-	* tests/expr.test (expr-46.*):       behaviour to the "round" function.
-	Added test cases for the behavior, including the awkward case of a
-	number whose fractional part is 1/2-1/2ulp. [Bug 1275043]
-
-2005-08-26  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c: Moved Tcl_{Cut,Splice}Channel to
-	{Cut,Splice}Channel for internal use, and created new public functions
-	for Tcl_{Cut,Splice}Channel which walk the whole stack of
-	transformations and invoke the necessary thread actions. Added code to
-	Tcl_(Un)StackChannel to properly invoke the thread actions when pushing
-	and popping transformations on/from a channel.
-
-2005-08-26  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclNamesp.c (NamespaceEnsembleCmd): Reset the result after
-	creating an ensemble to clear any result object sharing (potentially
-	caused by delete traces) so that we can safely return the name of the
-	ensemble. Previously, this caused crashes in Snit's test suite.
-
-2005-08-25  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclListObj.c (UpdateStringOfList): Stop uncontrolled and
-	unsafe crashes from happening when working with very large string
-	representations. [Bug 1267380]
-
-	* generic/tclExecute.c (TEBC:INST_DICT_LAPPEND): Stop dropping a
-	duplicated object on the floor, which was a memory leak (and a wrong
-	result too). Thanks to Andreas Kupries for reporting this.
-
-2005-08-25  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch] Merge updates from HEAD
-
-	* generic/tclExecute.c: Bug fix. INST_RSHIFT: shift of negative values
-	produced incorrect results.
-
-	* generic/tclExecute.c: Bug fix. INST_*SHIFT opcodes stack management.
-	[expr 0<<6] should be 0, not 6.
-
-	* generic/tclBasic.c: Extended the domain of round(.) to all non-Inf,
-	non-NaN doubles, using bignums for the result as needed.
-
-2005-08-24  Andreas Kupries  <andreask@activestate.com>
-
-	TIP#219 IMPLEMENTATION
-
-	* doc/SetChanErr.3: ** New File **. Documentation of the new channel
-	API functions.
-	* generic/tcl.decls:  Stub declarations of the new channel API.
-	* generic/tclDecls.h: Regenerated
-	* generic/tclStubInit.c:
-
-	* tclIORChan.c: ** New File **. Implementation of the reflected
-	channel.
-	* generic/tclInt.h: Integration of reflected channel and new error
-	* generic/tclIO.c:  propagation into the generic I/O core.
-	* generic/tclIOCmd.c:
-	* generic/tclIO.h:
-	* library/init.tcl:
-
-	* tests/io.test:    Extended testsuite.
-	* tests/ioCmd.test:
-	* tests/chan.test:
-	* generic/tclTest.c:
-	* generic/tclThreadTest.c:
-
-	* unix/Makefile.in: Integration into the build machinery.
-	* win/Makefile.in:
-	* win/Makefile.vc:
-
-2005-08-24  Kevin Kenny  <kennykb@acm.org>
-
-	* generic/tclStrToD.c (Tcl_DoubleDigits): Fixed the corner cases of
-	* tests/binary.test (binary-65.*)         formatting floating point
-	numbers with the largest and smallest possible significands, and added
-	test cases for them.
-
-2005-08-24  Kevin Kenny  <kennykb@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclExecute.c: Corrected some TRACE bugs that prevented
-	compilation with --enable-symbols=all.
-	* generic/tclStrToD.c: Revised commentary to prepare for a renaming of
-	the file, removed some dead code, and fixed a bug where
-	TclBignumToDouble failed on huge negative numbers.
-	* tests/binary.test (binary-65.*): Added missing 'ieeeFloatingPoint'
-	to large/small significand tests.
-	* tests/expr.test (expr-45.*) Added missing braces around expressions.
-
-2005-08-24  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclBasic.c:	Revised implementation of the ceil(.) and
-	* generic/tclInt.h:	floor(.) math functions in light of the
-	* generic/tclStrToD.c:	revised comparison operators, so that it is
-	always true that ($x <= ceil($x)) and ($x >= floor($x)). The simple
-	approach of "convert to double and call ceil() or floor()" could not
-	guarantee that.
-
-	* generic/tclExecute.c:	Bug fix: TclBignumToDouble return -Inf when
-	appropriate. Removed declarations of removed routines.
-
-	* generic/tclExecute.c: Revised the type promotion rules of the
-	comparison operators so that they form proper equivalence classes over
-	the set of numeric strings.
-
-2005-08-23  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure.in:
-	* win/configure: Regen.
-	* win/configure.in: Update minimum autoconf version to 2.59.
-
-2005-08-23  Kevin Kenny  <kennykb@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd):
-	* generic/tclInt.h:
-	* generic/tclObj.c (Tcl_GetBooleanFromObj, SetDoubleFromAny,
-	Tcl_GetLongFromObj, Tcl_GetWideIntFromObj, Tcl_GetBignumFromObj):
-	* generic/tclParseExpr.c (GetLexeme):
-	* generic/tclScan.c (Tcl_ScanObjCmd):
-	* generic/tclStrToD.c (TclParseNumber):
-	* tests/binary.test (binary-62.1-65.7):
-	* tests/expr.test (expr-40.1-42.1):
-	* scan.test (scan-14.1,14.2):
-	Modified Tcl_ParseNumber to accept an argument to force interpretation
-	as decimal, and modified [scan] to use it. Corrected a bug where Not a
-	Number with hexadecimal information bits returned consistently
-	incorrect values. #ifdef-ed out some code that is needed only for IBM
-	hexadecimal floating point. Fixed bugs in code to handle the corner
-	cases of smallest and largest significands. Added test cases to improve
-	test coverage in generic/tclStrToD.c. Added test cases for 0b notation
-	(TIP #114). Removed TclStrToD, and the static functions that it calls,
-	which are now dead code (TclParseNumber now does all input
-	floating-point conversions.)
-
-2005-08-23  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclStrToD.c:	Bug fix: set shift magnitude properly whether
-	we're expanding to mp_int type or not.
-
-	* generic/tclExecute.c:	Bug fix: ACCEPT_NAN under INST_UMINUS.
-
-	* generic/tclStrToD.c:	New macros TIP_114_FORMATS and KILL_OCTAL to
-	configure acceptance of 0o and 0b numbers and rejection of "leading
-	zero as octal".
-
-	* generic/tclBasic.c:	Re-used the guts of int(.) and wide(.) math
-	functions to perform conversions in OldMathFuncProc.
-
-	* generic/tclBasic.c:	Support for ACCEPT_NAN.
-	* generic/tclExecute.c:
-
-	* generic/tclInt.decls:	Restored TclExprFloatError to internal stubs
-	* generic/tclBasic.c:	table, and moved definition back to
-	* generic/tclExecute.c:	tclExecute.c from tclBasic.c to handle #undef
-	ACCEPT_NAN.
-
-	* generic/tclIntDecls.h:	make genstubs
-	* generic/tclStubInit.c:
-
-	* generic/tclInt.h:	New internal macros TclIsNaN and TclIsInfinite
-	* generic/tclBasic.c:	replace the IS_NAN and IS_INF macros scattered
-	* generic/tclExecute.c:	here and there.
-	* generic/tclObj.c:
-	* generic/tclStrToD.c:
-	* generic/tclUtil.c:
-
-2005-08-22  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tclConfig.h.in: autoheader-2.59.
-
-2005-08-22  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclInt.h:	New ACCEPT_NAN macro to mark code that
-	* generic/tclCmdAH.c:	supports or disables accepting of the NaN
-	* generic/tclExecute.c:	value at various points.
-	* generic/tclLink.c:
-
-	* generic/tclStrToD.c:	Bug fix. Parsing of +/- Infinity was reversed.
-
-	* generic/tclTestObj.c:	Disabled unused [testconvertobj] command.
-
-	* generic/tclBasic:	Added [expr {entier(.)}]. Rewrote int(.) and
-	wide(.) to use the same guts, accepting all non-Inf doubles as
-	arguments.
-
-	* generic/tclInt.h:	New routine TclInitBignumFromDouble.
-	* generic/tclStrToD.c:	Modified to return code and write error
-	message.
-
-	* generic/tclInt.h:	TCL_WIDE_INT_IS_LONG implies NO_WIDE_TYPE.
-	* generic/tclObj.c:	Removed now unnecessary tests of the
-	* generic/tclStrToD.c:	TCL_WIDE_INT_IS_LONG definition.
-
-	* generic/tclInt.h:	New internal routine TclSetBignumIntRep
-	* generic/tclObj.c:	consolidates packing of bignum value into a
-	* generic/tclStrToD.c:	Tcl_Obj within one source code file.
-
-	* tests/expr.test:	Corrected the wideIs64bit constraint.
-	* tests/format.test:
-	* tests/scan.test:
-
-2005-08-21  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclInt.h:		Moved TclParseInteger to tclUtil.c and
-	* generic/tclParseExpr.c:	made it static.
-	* generic/tclUtil.c:
-
-	* generic/tclInt.decls:	Moved TclExprFloatError to tclBasic.c and made
-	* generic/tclBasic.c:	it static.
-	* generic/tclExecute.c:
-
-	* generitc/tclIntDecls.h:	make genstubs
-	* generic/tclStubInit.c:
-
-	* generic/tclExecute.c:	errno, IS_NAN, IS_INF, LLD no longer called in
-	this file; dropped/disabled support for them.
-
-	* generic/tclCompExpr.c:	errno no longer used in these files;
-	* generic/tclParseExpr.c:	dropped support "hack" for it.
-
-	* generic/tclStrToD.c:	Disabled out of date support "hack" for errno.
-
-	* generic/tclBasic.c:	Eliminated VerifyExprObjType. Initialize errno
-	to zero in OldMathFuncProc.
-
-2005-08-19  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclBasic.c:	Updated OldMathFuncProc and ExprAbsFunc to do
-	less invasion into numeric Tcl_Obj internals. Made ExprDoubleFunc,
-	ExprIntFunc, ExprWideFunc, and ExprRoundFunc bignum-aware. Revised
-	ExprSrandFunc error message.
-
-	* generic/tclProc.c:	Wrapped a few tclWideIntType uses in
-	* generic/tclCmdMZ.c:	#ifndef NO_WIDE_TYPE.
-
-	* generic/tclInt.h:	#define'd NO_WIDE_TYPE.
-
-	* generic/tclVar.c:	Replaced TclPtrIncrVar and TclPtrIncrWideVar
-	* generic/tclInt.h:	with TclPtrIncrObjVar and replaced TclIncrVar2
-	* generic/tclInt.decls:	and TclIncrWideVar2 with TclIncrObjVar2. New
-	routines call on TclIncrObj to do the work.
-
-	* generic/tclIntDecls.h:	make genstubs
-	* generic/tclStubInit.c:
-
-	* generic/tclCmdIL.c:	Rework Tcl_IncrObjCmd and the INST_*INCR*
-	* generic/tclExecute.c:	opcodes to use the new routines.
-
-2005-08-18  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclExecute.c:		Fixed string rep invalidation bug in
-	* tests/dict.test (dict-11.17):	INST_DICT_INCR_IMM rewrite.
-
-	* generic/tclDictObj.c:	DictIncrCmd rewrite to use TclIncrObj.
-
-	* generic/tclInt.h:	TclIncrObj static -> internal
-	* generic/tclExecute.c:
-
-2005-08-17  George Peter Staplin  <GeorgePS@XMission.com>
-
-	* generic/tclBasic.c: eliminate a namespace clash caused by
-	BuiltinFuncTable not being static.
-
-	* generic/tclObj.c: fix a namespace clash caused by a missing
-	static for pendingObjData.
-
-2005-08-17  Kevin Kenny  <kennykb@acm.org>
-
-	* generic/tclEvent.c (Tcl_Finalize): Removed a copy-and-paste accident
-	that caused a (mostly harmless) double finalize of the load and
-	filesystem subsystems.
-	* tests/clock.test: Eliminated the bad test clock-43.1, and split
-	clock-50.1 into two tests, with a more permissive check on the error
-	message for an out-of-range value.
-
-2005-08-17  Kevin Kenny  <kennykb@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclBasic.c (Tcl_Expr{Long,Double}{,Obj}): Updated to
-	* generic/tclTest.c:                                deal with
-	* tests/expr-old.test:                              bignums (well,
-	* tests/expr.test:                                  mostly).
-	Added a missing "errno=0;" in ExprUnaryFunc so that spurious error
-	returns aren't detected.
-	Added test cases for Tcl_Expr* and Tcl_Expr*Obj because there was very
-	poor test coverage in those areas.
-	* generic/tclParseExpr.c: Reworked parsing of numbers to call
-	TclParseNumber rather than trying to do things locally.
-	* generic/tclStrToD.c: Corrected a comment. Changed so that *endPtrPtr
-	does not include any trailing whitespace.
-
-2005-08-17  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclExecute.c: New routine TclIncrObj to centralize the
-	increment operation needed in many places. Updated INST_DICT_INCR_IMM
-	to make use of it.
-
-2005-08-16  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclExecute.c:	Made bit shifting opcodes and INST_MOD
-	bignum-aware.
-
-	* tests/scan.test:	Making << bignum-aware means that repeated
-	* tests/string.test:	left shifting cannot turn a positive into a
-	negative. Revised [int_range] and [largest_int] utility commands in the
-	test suite that relied on that happening. Without revision they became
-	infinite loops.
-
-	* generic/tclExecute.c:	Made binary bitwise opcodes bignum-aware.
-
-	* generic/tclTomMath.h:	Added mp_or and mp_xor to routines from
-	* unix/Makefile.in:	libtommath used by Tcl.
-	* win/Makefile.in:
-	* win/makefile.vc:
-
-2005-08-15  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]	Updates from HEAD.
-	* generic/tclExecute.c:	More revisions to IllegalExprOperandType.
-	Merged INST_BITNOT with INST_UMINUS and make it bignum-aware according
-	to the rule: ~a = -a - 1. Disabled unused code and noted more TODOs.
-
-	* generic/tclInt.decls: Disabled TclLooksLikeInt() and all callers.
-	* generic/tclUtil.c:
-	* generic/tclCompCmds.c:
-
-	* generic/tclBasic.c:	Rewrite of VerifyExprObjType().
-
-	* generic/tclIntDecls.h:	make genstubs
-	* generic/tclStubInit.c:
-
-	* generic/tclExecute.c: Updated execution of comparison bytecodes to
-	be bignum-aware, routing string compares through INST_STR_CMP.
-
-2005-08-14  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclExecute.c: Updated execution of arithmetic bytecodes to
-	be bignum-aware, and to allow calculations on NaN to produce a NaN
-	result. INST_UMINUS updated to call mp_neg.
-
-	* generic/tclTomMath.h:	Added mp_and, mp_expt_d, and mp_neg to
-	* unix/Makefile.in:	routines from libtommath used by Tcl.
-	* win/Makefile.in:
-	* win/makefile.vc:
-
-2005-08-13  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclObj.c:	Extended Bignum auto-narrowing to auto-narrow
-	to tclWideIntType when appropriate; this helps keep things working as
-	the bytecode execution code is migrated to supporting bignums.
-
-	* generic/tclExecute.c:	Major overhaul of IllegalExprOperandType.
-	Changed several TclNewFooObj() calls to more logically appropriate
-	ones. Added several TODO comments marking opportunies for future work.
-	Made more use of the eePtr->constants. Made INST_UMINUS bignum aware.
-
-2005-08-12  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclExecute.c: Simplify doCondJump. Use eePtr->constants as
-	result of INST_DICT_NEXT, INST_LAND, and INST_LOR. Separate INST_LNOT
-	from INST_UMINUS and simplify.
-
-2005-08-12  Kevin Kenny  <kennykb@acm.org>
-
-	* generic/tclClock.c (MktimeObjCmd):
-	* library/clock.tcl (GetSystemTimeZone, LoadZoneinfoFile)
-	(ReadZoneinfoFile):
-	* tests/clock.test (clock-50.1):
-	Added functionality to read /etc/localtime if it exists, so that Tcl's
-	time can track system time on Linux even if TZ is not set. Changed
-	::tcl::clock::Mktime to check for failure, and added a test case that
-	mimics failure but is really success.
-
-2005-08-11  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclExecute.c: Rewrite of INST_LAND/INST_LOR to take advantage
-	of loss of "pure double" issues. Merged INST_UPLUS with
-	INST_TRY_CVT_TO_NUMERIC and updated to use improved rules for impure
-	"double"s as well.
-
-	* generic/tclStrToD.c:	Restored conditional generation of
-	tclWideIntType values by TclParseNumber so that Tcl's not completely
-	broken while bignum calculation support is incomplete. The NO_WIDE_TYPE
-	macro can be used to disable this.
-
-	* generic/tclBasic.c (ExprAbsFunc): First pass making [expr abs(.)]
-	bignum-aware.
-
-2005-08-11  Kevin Kenny  <kennykb@acm.org>
-
-	* generic/tclEvent.c:         Eliminated the USE_THREAD_STORAGE option
-	* generic/tclInt.h:           (which is on in every build generated by
-	* generic/tclThread.c:        by the standard configurator).
-	* generic/tclThreadStorage.c: Eliminated the code for thread specific
-	* unix/configure:             data without USE_THREAD_STORAGE and
-	* unix/tcl.m4:                radically refactored the code for
-	* unix/tclConfig.h.in:        USE_THREAD_STORAGE so that it has fewer
-	* unix/tclUnixThrd.c:         dependencies on the order of
-	* win/configure:              finalization. (Also, made 'make
-	* win/Makefile.in:            distclean' on Windows clean just a little
-	* win/rules.vc:               bit cleaner.)
-	* win/tcl.m4:
-	* win/tclWinThrd.c:
-
-2005-08-10  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclTomMath.h:	Added mp_shrink, mp_to_unsigned_bin,
-	* unix/Makefile.in:	mp_to_unsigned_bin_n, and mp_unsigned_bin_size
-	* win/Makefile.in:	to routines from libtommath used by Tcl.
-	* win/makefile.vc:
-
-	* generic/tommath.h:	make gentommath_h
-
-	* generic/tclObj.c:	Substantial rewrite to make all number parsing
-	flow through TclParseNumber(). Also established the NO_WIDE_TYPE and
-	BIGNUM_AUTO_NARROW #ifdef's to help track the assumptions of different
-	portions of the code.
-
-	* generic/tclInt.h:	Added NO_WIDE_TYPE #ifdefs
-
-2005-08-10  Kevin Kenny  <kennykb@acm.org>
-
-	* generic/tclEvent.c (Tcl_Finalize): Pushed Tcl_FinalizeLoad and
-	Tcl_ResetFilesystem down after Tcl_FinalizeThreadAlloc because we can't
-	unload DLL's until after their TSD keys are finalized. (Note that we'll
-	still see aborts if an unloaded DLL has TSD - that still needs to be
-	fixed.
-
-	* tests/compExpr-old.test (compExpr-3.8): Made tests conditional on
-	* tests/expr.test (expr-3.8):             'unix' because they get
-	stack overflows on Win32 threaded builds,
-
-2005-08-09  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclPathObj.c: fix to [file rootname] bug in optimized code
-	path reported on comp.lang.tcl.
-
-2005-08-08  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclObj.c:	Replaced some goto's with loops and started
-	use of BIGNUM_AUTO_NARROW and NO_WIDE_TYPE.
-
-2005-08-06  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclThreadStorage.c: Stop exposing the guts of the thread
-	storage system through the internal stubs table. Client code should
-	always use the standard API.
-
-2005-08-05  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch]
-	* generic/tclObj.c:	Rewrote Tcl_GetDoubleFromObj().
-
-2005-08-05  Donal K. Fellows  <dkf@users.sf.net>
-
-	* unix/tclUnixInit.c (localeTable): Solaris uses a non-standard name
-	for the cp1251 charset. Thanks to Victor Wagner for reporting this.
-	[Bug 1252475]
-
-2005-08-05  Kevin Kenny  <kennykb@users.sourceforge.net>
-
-	* win/makefile.vc: Removed unused file ldAout.tcl.
-	* win/makefile.bc: [Bug 1244361]
-
-	* tests/binary.test: Cleaned up testing for scanning of NaN. [Bug
-	1246264]
-
-	* generic/tclBasic.c (ExprAbsFunc): Added code to handle the corner
-	* tests/expr.test (expr-38.1):      case of applying 'abs' to the
-	smallest 32-bit integer. [Bug 1241572]
-
-2005-08-04  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c (CloseChannel): Fixed comment nit, added apparently
-	missing word to complete a sentence.
-
-	* generic/tclObj.c (Tcl_DbDecrRefCount): Fixed whitespace nit in panic
-	message.
-
-2005-08-04  Don Porter  <dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch] Updated from HEAD
-
-	* generic/tclObj.c:	Rewrote Tcl_GetBooleanFromObj() and supporting
-	routines to make use of TclParseNumber. This reduces the potential
-	number of times a string value must be scanned.
-
-	* generic/tclObj.c:	Simplified routines that manage the typeTable.
-	Deleted the UpdateStringOfBoolean() routine, that can never be called.
-
-2005-08-03  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Untangled some dependencies in the
-	* generic/tclEvent.c:		order of finalization routines.
-	* generic/tclInt.h:		[Bug 1251399]
-	* generic/tclObj.c:
-
-2005-08-02  Don Porter	<dgp@users.sourceforge.net>
-
-	[kennykb-numerics-branch] Updated from HEAD
-
-2005-07-30  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tclLoadDyld.c (TclpDlopen, TclpLoadMemory): workarounds for
-	bugs/changes in behaviour in Mac OS X 10.4 Tiger.
-
-2005-07-29  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCmdIL.c (InfoGlobalsCmd): Even in high-speed mode, still
-	have to take care with non-existant variables. [Bug 1247135]
-
-2005-07-28  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/README: Update link to msys_mingw8.zip.
-
-2005-07-28  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/compExpr-old.test:	Still more conversion of "nonPortable"
-	* tests/error.test:		tests into tests with constraints that
-	* tests/expr-old.test:		describe the limits of their
-	* tests/expr.test:		portability. Also more consolidation
-	* tests/fileName.test:		of constraint synonyms.
-	* tests/format.test:		wideis64bit, 64bitInts => wideIs64bit
-	* tests/get.test:		wideIntegerUnparsed => wideIs32bit
-	* tests/load.test:		wideIntExpressions => wideBiggerThanInt
-	* tests/obj.test:
-	* tests/parseExpr.test:		Dropped "roundOffBug" constraint that
-	* tests/string.test:		protected from buggy sprintf.
-
-2005-07-28  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclPipe.c (TclCreatePipeline): Arrange for POSIX systems to
-	* unix/tclUnixPipe.c (TclpOpenFile):	 use the O_APPEND flag for
-	* tests/exec.test (exec-19.1):		 files opened in a pipeline
-	like ">>this". Note that Windows cannot support such access; there is
-	no equivalent flag on the handle that can be set at the kernel-call
-	level. The test is unix-specific in every way. [Bug 1245953]
-
-2005-07-27  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclUtil.c:	Converted the $::tcl_precision value to be kept
-	per-thread to prevent different threads from stomping on each others'
-	formatting prescriptions.
-
-	***POTENTIAL INCOMPATIBILITY*** Multi-threaded programs that set the
-	value of ::tcl_precision will now have to set it in each thread.
-
-	* tests/expr.test:	Consolidated equivalent constraints into
-	* tests/fileName.test:	single definitions and (more precise) names:
-	* tests/get.test:	longis32bit, 32bit, !intsAre64bit => longIs32bit
-	* tests/listObj.test:	empty => emptyTest; winOnly => win
-	* tests/obj.test:	intsAre64bit => longIs64bit
-	Also updated some "nonPortable" tests to use constraints that mark
-	precisely what about them isn't portable, so the tests can run where
-	they work.
-
-	* library/init.tcl ([unknown]): Corrected return code handling in the
-	portions of [unknown] that expand incomplete commands during
-	interactive operations. [Bug 1214462].
-
-2005-07-26  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure: Regen.
-	* unix/configure.in: Check for a $prefix/share directory and add it the
-	the package if found. This will check for Tcl packages in
-	/usr/local/share when Tcl is configured with the default dist install.
-	[Patch 1231015]
-
-2005-07-26  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c (Tcl_CallWhenDeleted):	Converted to use
-	per-thread counter, rather than a process global one that required
-	mutex protection. [RFE 1077194]
-
-	* generic/tclNamesp.c (TclTeardownNamespace):	Re-ordering so that
-	* tests/trace.test (trace-34.4):	command delete traces fire
-	while the command still exists. [Bug 1047286]
-
-2005-07-24  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* unix/configure: Regen.
-	* unix/tcl.m4 (SC_PROG_TCLSH, SC_BUILD_TCLSH):
-	* win/configure: Regen.
-	* win/tcl.m4 (SC_PROG_TCLSH, SC_BUILD_TCLSH): Split confused search
-	for tclsh on PATH and build and install locations into two macros.
-	SC_PROG_TCLSH searches just the PATH. SC_BUILD_TCLSH determines the
-	name of the tclsh executable in the Tcl build directory. [Bug 1160114]
-	[Patch 1244153]
-
-2005-07-23  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/auto.tcl:	Updates to the Tcl script library to make use
-	* library/history.tcl:	of Tcl 8.4 features. Forward port of
-	* library/init.tcl:	appropriate portions of [Patch 1237755].
-	* library/package.tcl:
-	* library/safe.tcl:
-	* library/word.tcl:
-
-2005-07-23  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* tests/string.test: Add string is tests for functionality that was not
-	tested.
-	* win/README: Update msys + mingw URL. Remove old Cygwin + mingw info.
-
-2005-07-23  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c (INST_DICT_*): stop 2 compiler warnings for
-	uninitialised variables.
-
-2005-07-23  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclExecute.c (TEBC:INST_DICT_INCR_IMM): Fix the incrementor
-	to work correctly with wide values.
-
-2005-07-21  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCompCmds.c (TclCompileDictCmd): First run at a compiler
-	* generic/tclExecute.c (TclExecuteByteCode): for dictionaries. Also
-	added an instruction to support 'finally'-like clauses, exposed more of
-	the dict guts to the rest of the core, and defined a few tests to
-	exercise more obscure parts of the compiler's operation that were bugs
-	during development.
-
-2005-07-21  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/ldAout.tcl (***REMOVED***):	Removed support for ancient
-	* unix/configure:			BSD's, IRIX 4, RISCos and
-	* unix/Makefile.in:			Ultrix. Removed two files whose
-	* unix/tcl.m4:				code is used only on those
-	* unix/tclLoadAout.c (***REMOVED***):	antique platforms.
-
-	***POTENTIAL INCOMPATIBILITY*** if anyone actually uses those
-	platforms; it is to be noted though, that an error in the installer has
-	actually not caused a necessary file to be installed on those platforms
-	in several releases, and nobody's complained.
-
-2005-07-16  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclStrToD.c (RefineResult):  Plugged a stupid memory leak in
-	RefineResult (called from Tcl_StrToD). [Tk Bug 1227781]
-
-2005-07-15  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclClock.c (TclClockLocaltimeObjCmd,ThreadSafeLocalTime):
-	* library/clock.tcl (GuessWindowsTimeZone, ClearCaches):
-	* tests/clock.test (clock-49.1, clock-49.2):
-	Handle correctly the case where localtime() returns NULL to report a
-	conversion error. Also handle the case where the Windows registry
-	contains timezone values that can be mapped to a tzdata file name but
-	the corresponding file does not exist or is corrupted, by falling back
-	on a Posix timezone string instead; this last case will avoid calls to
-	localtime() in starpacks on Windows. [Bug 1237907]
-
-2005-07-14  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclCompile.c: Update to follow style guidelines.
-	(TclPrintInstruction): Reorganize to do better printing out of bytecode
-	with far fewer "special hacks" for particular opcodes.
-	* generic/tclCompile.h: Requires two new opcode types.
-
-2005-07-13  Don Porter	<dgp@users.sourceforge.net>
-
-	* unix/tclUnixSock.c:	Use a ProcessGlobalValue to store the value
-	* win/tclWinSock.c:	returned by Tcl_GetHostName() ([info
-	hostname]). Also re-order initialization of the value on Windows to
-	favor GetComputerName() over gethostname() as a source of the
-	information.
-
-2005-07-12  Kevin Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch] Updated from HEAD
-
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd):
-	* generic/tclInt.h:
-	* generic/tclObj.c (Tcl_GetDoubleFromObj, SetDoubleFromAny)
-	(Tcl_GetIntFromObj, SetIntOrWideFromAny):
-	* generic/tclStrToD.c (TclParseNumber, etc.):
-	* tclTomMathInterface.c (TclBNInitBignumFromWideUInt):
-	* tests/obj.test (obj-1.1, obj-2.2, obj-3.1, obj-3.2):
-
-	Initial attempt at an implementation of TIP #249, comprising a unified
-	parser and modifications to the Tcl_Get*FromObj routines to use it.
-	Further integration of the parser is necessary and planned.
-
-2005-07-12  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/lsearch.n: Clarify documentation of -exact option; wording was
-	open to misinterpretation by non-English speakers.
-
-2005-07-11  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclExecute.c: General style cleanup.
-
-2005-07-08  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tclExecute.c (TclExecuteByteCode): Reimplement long and wide
-	type integer division and modulus operations so that the smallest and
-	largest integer values are handled properly. The divide operation is
-	more efficient since it no longer does a modulus or negation and only
-	checks for a remainder when the quotient will be a negative number.
-	The modulus operation is now a bit more complex because of a number of
-	special cases dealing with the smallest and largest integers.
-	* tests/expr.test: Add test cases for division and modulus operations
-	on the smallest and largest integer values for 32 and 64 bit types.
-	[Patch 1230205]
-
-2005-07-06  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclLink.c:	Simplified LinkTraceProc [Bug 1208108].
-
-2005-07-05  Don Porter	<dgp@users.sourceforge.net>
-
-	* unix/Makefile.in:	Purged use of TCLTESTARGS [RFE 1161550].
-
-	* generic/tclUtil.c:	Converted TclFormatInt() into a macro.
-	* generic/tclInt.decls:	[RFE 1194015]
-	* generic/tclInt.h:
-
-	* generic/tclIntDecls.h:	make genstubs
-	* generic/tclStubInit.c:
-
-	* generic/tclNamesp.c:	Allow for [namespace import] of a command
-	* tests/namespace.test:	over a previous [namespace import] of itself
-	without throwing an error. [RFE 1230597]
-
-2005-07-04  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclDictObj.c (DictForCmd, DictFilterCmd): Interlocking of
-	dictionary internal representations is now done in the core of the dict
-	iterator. Purge the last attempts at doing it at a higher level as they
-	didn't work and were no longer needed.
-
-2005-07-01  Zoran Vasiljevic  <vasiljevic@users.sourceforge.net>
-
-	* unix/tclUnixNotfy.c: protect against spurious wake-ups while waiting
-	on the condition variable when tearing down the notifier thread [Bug
-	1222872].
-
-2005-06-28  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tclExecute.c (TclExecuteByteCode): When parsing an integer
-	operand for a unary minus expression operator, check for a wide integer
-	that is actually LONG_MIN. If found, convert back to a long int type.
-	* tests/expr.test: Add constraint for 32bit long int type and 64bit
-	wide int type. Add tests that parse the smallest/largest long int and
-	wide int values.
-
-2005-06-24  Kevin Kenny  <kennykb@acm.org>
-
-	* generic/tclEvent.c (Tcl_Finalize):
-	* generic/tclInt.h:
-	* generic/tclPreserve.c (TclFinalizePreserve): Changed the finalization
-	logic so that Tcl_Preserve finalizes after exit handlers run; a lot of
-	code called from Tk's exit handlers presumes that Tcl_Preserve will
-	still work even from an exit handler.
-
-2005-06-24  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/auto.tcl:	Make file safe to re-[source] without
-	destroying registered auto_mkindex_parser hooks.
-
-2005-06-23  Kevin Kenny  <kennykb@acm.org>
-
-	* win/tclWinChan.c: More rewriting of __asm__ blocks that implement
-	* win/tclWinFCmd.c: SEH in GCC, because mingw's gcc 3.4.2 is not as
-	forgiving of violations committed by the old code and caused panics.
-	[Bug 1225957]
-
-2005-06-23  Daniel Steffen  <das@users.sourceforge.net>
-
-	* tools/tcltk-man2html.tcl: fixed useversion glob pattern to accept
-	multi-digit patchlevels.
-
-2005-06-22  Don Porter	<dgp@users.sourceforge.net>
-
-	* win/tclWinFile.c: Potential buffer overflow. [Bug 1225571] Thanks to
-	Pat Thoyts for discovery and fix.
-
-2005-06-22  Kevin Kenny  <kennykb@acm.org>
-
-	* generic/tclInt.h:			    Changed the finalization
-	* generic/tclEvent.c (Tcl_Finalize):	    logic to defer the
-	* generic/tclIO.c (TclFinalizeIOSubsystem): shutdown of the pipe
-	* unix/tclUnixPipe.c (TclFinalizePipes):    management until after all
-	* win/tclWinPipe.c (TclFinalizePipes):	    channels have been closed,
-	in order to avoid a situation where the Windows PipeCloseProc2 would
-	re-establish the exit handler after exit handlers had already run,
-	corrupting the heap. [Bug 1225727] Also corrected a potential read of
-	uninitialized memory in PipeClose2Proc [Bug 1225044]
-
-2005-06-21  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclInt.h: Followup to change made on 2005-06-18 by Daniel
-	Steffen. There are compilers (*) who error out on the redefinition of
-	WORDS_BIGENDIAN. We have to undef the previous definition (on the
-	command line) first to make this acceptable. (*): AIX native.
-
-2005-06-21  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclFileName.c: Changed [file split] and [file join] to treat
-	Windows drive letters similarly to ~ syntax and make sure that they
-	appear with "./" in front when they are in intermediate components of
-	the path. [Bug 1194458]
-	* tests/fileName.test: Added test for the above bug.
-
-2005-06-21  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Added missing walk of the list of active
-	* generic/tclTrace.c:	traces to cleanup references to traces being
-	* generic/tclInt.h:	deleted. [Bug 1201035] Made the walk of the
-	* tests/trace.test (trace-34.*): active trace list aware of the
-	direction of trace scanning, so the proper correction can be made.
-	[Bug 1224585]
-
-2005-06-21  Donal K. Fellows  <dkf@users.sf.net>
-
-	* unix/tcl.m4 (SC_ENABLE_SYMBOLS): Only enable the 'compile' special
-	debugging feature when requested in configure.in; removes irrelevant
-	junk from the configure files of extensions that use Tcl's tcl.m4.
-
-2005-06-20  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCompile.h (INST_PUSH_RETURN_OPTIONS): New opcode to allow
-	* generic/tclCompCmds.c (TclCompileCatchCmd):	   compilation of
-	* generic/tclCompile.c:				   TIP#90 catch [Bug
-	* generic/tclExecute.c (TclExecuteByteCode):	   1219112]
-
-	* generic/tclCompCmds.c (TclCompileSwitchCmd): Ensure we spill to the
-	command form in all cases where it generates an error.
-
-2005-06-20  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c (Tcl_SwitchObjCmd): Generate an error if a mode
-	argument like -exact is passed more than once to the switch command.
-	The previous implementation silently accepted invalid switch
-	invocations like [switch -exact -glob $str ...].
-	* tests/for.test: Check some error cases when invoking continue and
-	break inside a for loop next script.
-	* tests/switch.test: Add checks for shortened version of a mode
-	argument like -exact. Add test for more than one mode argument. Add
-	test for odd case of passing a variable as a body script.
-
-2005-06-18  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclInt.h: ensure WORDS_BIGENDIAN is defined correctly with
-	fat compiles on Darwin (i.e. ppc and i386 at the same time), the
-	configure AC_C_BIGENDIAN check is not sufficient in this case because a
-	single run of the compiler builds for two architectures with different
-	endianness.
-
-	* unix/tcl.m4 (Darwin): add -headerpad_max_install_names to LDFLAGS to
-	ensure we can always relocate binaries with install_name_tool.
-
-	* unix/configure: autoconf-2.59
-
-2005-06-18  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclCmdAH.c (Tcl_FormatObjCmd): Fix for [Bug 1154163]; only
-	* tests/format.test: insert 'l' modifier when it is needed.
-
-2005-06-17  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclTimer.c (AfterDelay): Split out the code to manage
-	synchronous-delay [after] commands.
-	* tests/interp.test (interp-34.10): Time limits and synch-delay [after]
-	did not mix well... [Bug 1221395]
-
-2005-06-14  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclBasic.c (Tcl_DeleteCommandFromToken): Only delete a
-	* tests/namespace.test (namespace-49.2): command from the hashtable on
-	reentrant processing if it has not been already deleted; at least three
-	deletes of the same command are possible. [Bug 1220058]
-	* generic/tclTrace.c (TraceCommandProc): Remove bogus error message
-	creation when traces trigger in situations where the command has
-	already been deleted.
-
-2005-06-13  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFCmd.c: correct fix to file mkdir 2005-06-09 [Bug 1219176]
-
-2005-06-12  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCompCmds.c: Factor out some common idioms into named forms
-	for greater clarity.
-
-2005-06-10  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/chan.n: Fold in the descriptive parts of the documentation for
-	all the commands that [chan] builds on top of.
-
-2005-06-09  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFCmd.c: fix to race condition in file mkdir [Bug 1217375]
-	* doc/glob.n: improve glob documentation [Bug 1190891]
-
-2005-06-09  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/expr.n, doc/mathfunc.n: Fix minor typos [Bug 1211078] and add
-	mention of distinctly-relevant [namespace path] subcommand.
-
-2005-06-07  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclInt.h:		Reduced the Tcl_ObjTypes "index",
-	* generic/tclIndexObj.c:	"ensembleCmd", "localVarName", and
-	* generic/tclNamesp.c:		"levelReference" to file static scope.
-	* generic/tclProc.c:
-	* generic/tclVar.c:
-
-	* generic/tclObj.c:	Restored registration of the "procbody"
-	Tcl_ObjType, as required by the tclcompiler application.
-
-	* generic/tclDecls.h:		make genstubs
-	* generic/tclStubInit.c:
-
-2005-06-07  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclIO.c (Tcl_ChannelTruncateProc): Stop proliferation of
-	* generic/tcl.h:			     channel type versions
-	* doc/CrtChannel.3:			     following advice from AKu
-
-	Bump patchlevel to a4 to distinguish from a3 release.
-
-	* generic/tclInt.h (INTERP_TRACE_IN_PROGRESS): Add flag so the error
-	* generic/tclIndexObj.c (Tcl_WrongNumArgs):    messages from ensembles
-	* generic/tclIOCmd.c (Tcl_ReadObjCmd):	       can be correct.
-
-	TIP#208 IMPLEMENTATION
-
-	* library/init.tcl: Create the chan ensemble.
-	* tests/chan.test: Rudimentary test suite.
-	* doc/chan.n: General documentation.
-
-	TRUNCATION API (part of TIP#208)
-	* generic/tcl.h, generic/tcl.decls: Declaration of the API.
-	* doc/CrtChannel.3, doc/OpenFileChnl.3: Documentation of the API.
-	* generic/tclBasic.c (Tcl_CreateInterp): Create the mapping into Tcl.
-	* generic/tclIOCmd.c (TclChanTruncateObjCmd): Implementation of
-	Tcl-level truncation API.
-	* generic/tclIO.c (Tcl_TruncateChannel): Generic C-level truncation API
-	implementation.
-	* unix/tclUnixChan.c (FileTruncateProc): Basic implementation of
-	truncating driver.
-
-	* win/tclWinChan.c (FileTruncateProc): Added implementation of file
-	truncation for Windows.
-	* tests/chan.test (chan-15.2): Added real test of truncation.
-
-2005-06-06  Kevin B. Kenny  <kennykb@acm.org>
-
-	* win/tclWin32Dll.c: Corrected another buglet in the assembly code for
-	stack probing on Win32/gcc. [Bug 1213678]
-	* generic/tclObj,c: Added missing 'static' on definition of
-	UpdateStringOfBignum, and removed a 'switch' on a 'long long' operand
-	(which HP-UX native 'cc' seems unable to handle). [Bug 1215775]
-
-2005-06-04  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	*** 8.5a3 TAGGED FOR RELEASE ***
-
-	* unix/Makefile.in (dist): add libtommath
-
-2005-06-03  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* library/parray.tcl (parray): Only generate the sorted list of element
-	names once. Thanks to Andreas Leitgeb for spotting this.
-
-2005-06-03  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Makefile: fixed 'embedded' target.
-
-2005-06-02  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* unix/Makefile.in (html): add BUILD_HTML_FLAGS optional var
-	* tools/tcltk-man2html.tcl: add a --useversion to prevent confusion
-	when multiple Tcl source dirs exist.
-
-2005-06-01  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	For compatibility with earlier Tcl releases,
-	* generic/tclResult.c:	when a command procedure simply does a
-	* generic/tclTest.c:	"return TCL_RETURN;" we must interpret that
-	* tests/result.test:	the same as
-	"return Tcl_SetReturnOptions(interp, Tcl_NewObj());"  [Bug 1209759].
-
-2005-06-01  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclCompCmds.c (TclCompileSwitchCmd): Allow compilation of
-	-nocase -glob [switch]es (only one we know how to compile).
-
-	TIP#241 IMPLEMENTATION from Joe Mistachkin
-
-	* generic/tclCmdIL.c (Tcl_LsearchObjCmd, Tcl_LsortObjCmd):
-	* generic/tclCmdMZ.c (Tcl_SwitchObjCmd): Implementation of -nocase
-	option for [lsearch], [lsort] and [switch] commands.
-	* win/tclWinPort.h: Win uses nonstandard function names...
-	* tests/cmdIL.test, tests/lsearch.test, tests/switch.test: Tests
-	* doc/lsearch.n, doc/lsort.n, doc/switch.n: Docs
-
-	* generic/tclCompCmds.c (TclCompileLindexCmd): Compile the most common
-	case of [lindex] more efficiently.
-
-	* unix/tclUnixNotfy.c (Tcl_FinalizeNotifier): Pass the correct number
-	of arguments to Tcl_JoinThread.
-
-2005-05-31  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* unix/configure.in, unix/tcl.m4: Standardize generation of help
-	messages to always use AC_HELP_STRING and always (except for --with-tcl
-	and --with-tk, where the default is complex) say what the default is.
-
-2005-05-31  Zoran Vasiljevic  <vasiljevic@users.sourceforge.net>
-
-	* unix/tclUnixNotfy.c: the notifier thread is now created as joinable
-	thread and it is properly joined in Tcl_FinalizeNotifier. This is an
-	attempt to fix the [Bug 1082283].
-
-2005-05-30  Zoran Vasiljevic  <vasiljevic@users.sf.net>
-
-	* win/tclWinThrd.c: Fixed [Bug 1204064]
-
-2005-05-30  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	TIP #229 IMPLEMENTATION
-
-	* generic/tclNamesp.c (Tcl_FindCommand, TclResetShadowedCmdRefs)
-	(NamespacePathCmd, SetNsPath, UnlinkNsPath, TclInvalidateNsPath):
-	Implementation of the [namespace path] command and the command name
-	resolution engine.
-	* doc/info.n, doc/namespace.n: Doc updates.
-	* tests/namespace.test (namespace-51.*): Test updates.
-	* generic/tclResolve.c (BumpCmdRefEpochs, Tcl_SetNamespaceResolvers):
-	* generic/tclBasic.c (Tcl_CreateCommand, Tcl_CreateObjCommand): Ensure
-	that people don't see stale paths.
-	* generic/tclInt.h (Namespace, NamespacePathEntry): Structure defs.
-	* generic/tclCmdIL.c (InfoCommandsCmd): Updates to [info commands].
-
-2005-05-26  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Makefile: moved & corrected EMBEDDED_BUILD check.
-
-	* unix/configure.in: corrected framework finalization to softlink stub
-	library to Versions/8.x subdir instead of Versions/Current.
-	* unix/configure: autoconf-2.59
-
-2005-05-25  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclCmdMZ.c (Tcl_TimeObjCmd): add necessary cast
-
-2005-05-25  Don Porter	<dgp@users.sourceforge.net>
-
-	TIP#182 IMPLEMENTATION	[Patch 1165062]
-
-	* doc/mathfunc.n:	New built-in math function bool().
-	* generic/tclBasic.c:
-	* tests/expr.test:
-	* tests/info.test:
-
-2005-05-24  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/init.tcl:	Updated [unknown] to be sure the [return]
-	* tests/init.test:	options from an auto-loaded command are seen
-	correctly by the caller.
-
-2005-05-24  Daniel Steffen  <das@users.sourceforge.net>
-
-	* tests/env.test: added DYLD_FRAMEWORK_PATH to the list of env vars
-	that need to be handled specially.
-
-	* macosx/Makefile:
-	* macosx/README:
-	* macosx/Tcl-Info.plist.in (new file):
-	* unix/Makefile.in:
-	* unix/configure.in:
-	* unix/tcl.m4:
-	* unix/tclUnixInit.c: moved all Darwin framework build support from
-	macosx/Makefile into the standard unix configure/make buildsystem, the
-	macosx/Makefile is no longer required to build Tcl.framework (but its
-	functionality is still available for backwards compatibility).
-	* unix/configure: autoconf-2.59
-
-	* generic/tclIOUtil.c (TclLoadFile):
-	* generic/tclInt.h:
-	* unix/tcl.m4:
-	* unix/tclLoadDyld.c: added support for [load]ing .bundle binaries in
-	addition to .dylib's: .bundle's can be [unload]ed (unlike .dylib's),
-	and can be [load]ed from memory, e.g. directly from VFS without needing
-	to be written out to a temporary location first. [Bug 1202209]
-	* unix/configure: autoconf-2.59
-	* unix/tclConfig.h.in: autoheader-2.59
-
-	* generic/tclCmdMZ.c (Tcl_TimeObjCmd): change [time] called with a
-	count > 1 to return a string with a float value instead of a rounded
-	off integer. [Bug 1202178]
-
-	* doc/expr.n:
-	* doc/string.n: fixed roff syntax complaints from 'make html'.
-
-2005-05-20  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclParseExpr.c:	Corrected parser to recognize all
-	boolean literals accepted by Tcl_GetBoolean, including prefixes like
-	"y" and "f", and to allow "eq" and "ne" as function names in the proper
-	context. [Bug 1201589].
-
-2005-05-19  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclBasic.c (TclEvalObjvInternal): Rewrite for greater
-	clarity; although 'goto' is Bad, the contortions you have to go through
-	to avoid it can be worse...
-
-2005-05-19  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/tclMacOSXNotify.c (Tcl_InitNotifier): fixed crashing CFRelease
-	of runLoopSource in Tcl_InitNotifier (reported by Zoran):
-	CFRunLoopAddSource doesn't CFRetain, so can only CFRelease the
-	runLoopSource in Tcl_FinalizeNotifier.
-
-2005-05-18  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c (Tcl_ExprBoolean):	Rewrite as wrapper around
-	Tcl_ExprBooleanObj.
-
-	* generic/tclCmdMZ.c ([string is boolean/true/false]): Rewrite dropping
-	string-based Tcl_GetBoolean call, so that internal reps are kept for
-	subsequent quick boolean operations.
-
-	* generic/tclExecute.c:	Dropped most special handling of the "boolean"
-	Tcl_ObjType, since that type should now be rarely encountered.
-
-	* doc/BoolObj.3:	Rewrite of documentation dropping many details
-	about the internals of Tcl_Objs. Shorter documentation focuses on the
-	function and use of the routines.
-
-	* generic/tclInt.h:	Revision to the "boolean" Tcl_ObjType, so that
-	* generic/tclObj.c:	only string values like "yes" and "false" are
-	* tests/obj.test:	kept as the "boolean" Tcl_ObjType. The string
-	values "0" and "1" are kept as "int" Tcl_ObjType, which also produce
-	quick calls to Tcl_GetBooleanFromObj(). Since this internal change
-	means a Tcl_ConvertToType to a "boolean" Tcl_ObjType might not produce
-	a Tcl_Obj of type "boolean", the registration of the "boolean" type is
-	also removed.
-	***POTENTIAL INCOMPATIBILITY***
-	For callers of Tcl_GetObjType on the type name "boolean".
-
-2005-05-17  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclObj.c (TclInitObjSubsystem):	Removed the
-	* tests/listObj.test:	registration of the Tcl_ObjType's "list",
-	* tests/obj.test:	"procbody", "index", "ensembleCommand",
-	"localVarName", and "levelReference". The only reason to register a
-	Tcl_ObjType is to have it returned by Tcl_GetObjType, and the only
-	reason for that is to retrieve a (Tcl_ObjType *) to pass to
-	Tcl_ConvertToType(). None of the types above can support a
-	Tcl_ConvertToType() call; they panic. Better not to offer something
-	than to lead users into a panic.
-	***POTENTIAL INCOMPATIBILITY***
-	For callers of Tcl_GetObjType on the type names listed above.
-
-2005-05-15  Kevin Kenny  <kennykb@users.sourceforge.net>
-
-	* win/tclWin32Dll.c: conditioned definition of EXCEPTION_REGISTRATION
-	structures on HAVE_NO_SEH, to fix a bug in buildability on MSVC.
-
-2005-05-14  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclInt.decls:
-	* generic/tclTest.c:
-	* generic/tclUtil.c:
-	* win/tclWin32Dll.c: fixed link error due to direct access by tclTest.c
-	to the MODULE_SCOPE tclPlatform global: renamed existing
-	TclWinGetPlatform() accessor to TclGetPlatform() and moved it to
-	generic code so that it can be used by on all platforms where
-	MODULE_SCOPE is enforced.
-
-	* macosx/tclMacOSXBundle.c:
-	* unix/tclUnixInit.c:
-	* unix/tcl.m4 (Darwin): made use of CoreFoundation API configurable and
-	added test of CoreFoundation availablility to allow building on ppc64,
-	replaced HAVE_CFBUNDLE by HAVE_COREFOUNDATION; test for availability of
-	Tiger or later OSSpinLockLock API.
-
-	* unix/tclUnixNotfy.c:
-	* unix/Makefile.in:
-	* macosx/tclMacOSXNotify.c (new file): when CoreFoundation is
-	available, use new CFRunLoop based notifier: allows easy integration
-	with other event loops on Mac OS X, in particular the TkAqua Carbon
-	event loop is now integrated via a standard tcl event source (instead
-	of TkAqua upon loading having to finalize the exsting notifier and
-	replace it with its custom version). [Patch 1202052]
-
-	* tests/unixNotfy.test: don't run unthreaded tests on Darwin since
-	notifier may be using threads even in unthreaded core.
-
-	* unix/tclUnixPort.h:
-	* unix/tcl.m4 (Darwin): test for thread-unsafe realpath during
-	configure, as Darwin 7 and later realpath is threadsafe.
-
-	* macosx/Makefile: enable configure caching.
-
-	* unix/configure.in: wrap tclConfig.h header in #ifndef _TCLCONFIG so
-	that it can be included more than once without warnings from gcc4.0 (as
-	happens e.g. when including both tclInt.h and tclPort.h)
-
-	* macosx/tclMacOSXBundle.c:
-	* unix/tclUnixChan.c:
-	* unix/tclLoadDyld.c:
-	* unix/tclUnixInit.c: fixed gcc 4.0 warnings.
-
-	* unix/configure: autoconf-2.59
-	* unix/tclConfig.h.in: autoheader-2.59
-
-	* generic/tclIntDecls.h:
-	* generic/tclIntPlatDecls.h:
-	* generic/tclStubInit.c: make genstubs
-
-2005-05-13  Kevin Kenny  <kennykb@acm.org>
-
-	* win/tclWin32Dll.c: Further rework of the SEH logic. All
-	EXCEPTION_REGISTRATION records are now in the activation record rather
-	than pushed on the stack.
-
-2005-05-13  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Dropped the TCL_NO_MATH configuration. It's
-	* generic/tclBinary.c:	believed this has not been working in a long
-	* generic/tclExecute.c: time. Tcl needs math.h. [RFE 1200680]
-	* unix/Makefile.in:
-
-2005-05-12  Kevin Kenny  <kennykb@acm.org>
-
-	* doc/mathfunc.n: Changed NAME line to match the name of the page.
-
-2005-05-11  Kevin Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch] Resynchronized with the HEAD; at this
-	checkpoint [-rkennykb-numerics-branch-20050511], the HEAD and
-	kennykb-numerics-branch contain identical code.
-
-2005-05-11  Kevin Kenny  <kennykb@acm.org>
-
-	* generic/tclStrToD.c (TclStrToD, RefineResult, ParseNaN): Changed the
-	code to cast 'char' to UCHAR explicitly when using ctype macros, to
-	silence complaints from the Solaris compiler.
-
-2005-05-10  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* unix/tclUnixFCmd.c: add lint attr to enum to satisfy strictly
-	compliant compilers that don't like trailing ,s.
-
-	* tests/string.test: string-10.[21-30]
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd): add extra checks to prevent
-	possible UMR in unichar cmp function for string map.
-
-2005-05-10  Kevin Kenny  <kennykb@acm.org>
-
-	* generic/tclBinary.c (FormatNumber): Fixed a bug where NaN's resulted
-	in reads of uninitialized memory when using 'd', 'q', or 'Q' format.
-	* generic/tclStrToD.c (ParseNaN, TclFormatNaN): Added code to handle
-	the peculiarities of HP's PA_RISC, which uses a different 'quiet' bit
-	in NaN from everyone else.
-	* libtommath/tommath_superclass.h: Corrected C++-style comment.
-
-2005-05-10  Kevin Kenny  <kennykb@acm.org>
-
-	Merged all changes on kennykb-numerics-branch back into the HEAD.
-	TIP's 132 and 232 are now Final.
-
-2005-05-10  Kevin Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch] Merged changes from HEAD.
-
-2005-05-10  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c (ExponLong, ExponWide):
-	* tests/expr.test (expr-23.34/35): fixed special case 'i**0' for i>0
-	[Bug 1198892]
-
-2005-05-09  Kevin B. Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch]
-	* win/tclWin32Dll.c (TclpCheckStackSpace, TclWinCPUID): Reworked
-	structured event handling to function even with -fomit-frame-pointers.
-
-2005-05-08  Kevin B. Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch]
-	* generic/tclStrToD.c: Made code more portable by finding a workaround
-	for MSVC's 'volatile' issue that does not require conditional
-	compilation.
-	* win/tclWin32Dll.c (TclWinCPUID): Removed structured event handling
-	from the GCC code since (a) bad code is generated by the instruction
-	scheduling with -O2, and (b) it's not needed on any reasonably modern
-	CPU.
-
-2005-05-07  Kevin B. Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch]
-	* generic/tclEvent.c:  Moved initialization of tclStrToD.c's
-	* generic/tclInt.h:    static constants into a procedure called
-	* generic/tclStrToD.c: from TclInitSubsystems to avoid double checked
-	locking protocol. Cleaned up an issue where MSVC ignored the
-	'volatile' specifier, causing incorrect comparison of an underflowed
-	number against zero.
-
-2005-05-06  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* unix/tcl.m4, unix/configure: correct Solaris 10 (5.10) check and add
-	support for x86_64 Solaris cc builds.
-
-2005-05-05  Kevin B. Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch] Merged with HEAD.
-
-2005-05-05  Kevin B. Kenny  <kennykb@acm.org>
-
-	* win/tclWinThrd.c:  Corrected a compilation error on the
-			     --enable-threads configuration.
-
-2005-05-05  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclInt.decls:	Converted TclMatchIsTrivial to a macro.
-	* generic/tclInt.h:
-	* generic/tclUtil.c:
-	* generic/tclIntDecls.h:	`make genstubs`
-	* generic/tclStubInit.c:
-	* generic/tclBasic.c:	Added callers of TclMatchIsTrivial where a
-	* generic/tclCmdIL.c:	search can be done more efficiently when it is
-	* generic/tclCompCmds.c:recognized that a pattern match is really an
-	* generic/tclDictObj.c:	exact match. [Patch 1076088]
-	* generic/tclIO.c:
-	* generic/tclNamesp.c:
-	* generic/tclVar.c:
-
-	* generic/tclCompCmds.c:	Factored common efficiency trick into a
-	macro named CompileWord.
-
-	* generic/tclCompCmds.c:	Replaced all instance of
-	* generic/tclCompile.c:		TCL_OUT_LINE_COMPILE with TCL_ERROR.
-	* generic/tclInt.h:		Now that we've eradicated the mistaken
-	* tests/appendComp.test:	notion of a "compile-time error", we
-	can use the TCL_ERROR return code to signal any failure to produce
-	bytecode.
-
-2005-05-03  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/DString.3:	Eliminated use of identifier "string" in Tcl's
-	* doc/Environment.3:	public C API to avoid conflict/confusion with
-	* doc/Eval.3:		the std::string of C++.
-	* doc/ExprLong.3, doc/ExprLongObj.3, doc/GetInt.3, doc/GetOpnFl.3:
-	* doc/ParseCmd.3, doc/RegExp.3, doc/SetResult.3, doc/StrMatch.3:
-	* doc/Utf.3, generic/tcl.decls, generic/tclBasic.c, generic/tclEnv.c:
-	* generic/tclGet.c, generic/tclParse.c, generic/tclParseExpr.c:
-	* generic/tclRegexp.c, generic/tclResult.c, generic/tclUtf.c:
-	* generic/tclUtil.c, unix/tclUnixChan.c:
-
-	* generic/tclDecls.h:	`make genstubs`
-
-2005-05-02  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tcl.decls:
-	* generic/tclBasic.c:	Simplified implementation of Tcl_ExprString.
-	* tests/expr-old.test:
-
-	* generic/tclDecls.h:	`make genstubs`
-
-2005-04-30  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tclUnixNotfy.c: applied dkf's tkMacOSXNotify.c cleanup changes.
-
-2005-04-29  Don Porter	<dgp@users.sourceforge.net>
-
-	TIP#176 IMPLEMENTATION	[Patch 1165695]
-
-	* generic/tclUtil.c:	Extended TclGetIntForIndex to recognize index
-	formats including end+integer and integer+/-integer.
-
-	* generic/tclCmdMZ.c:	Extended the -start switch of [regexp] and
-	[regsub] to accept all index formats known by TclGetIntForIndex.
-
-	* doc/lindex.n:		Updated docs to note new index formats.
-	* doc/linsert.n, doc/lrange.n, doc/lreplace.n, doc/lsearch.n:
-	* doc/lset.n, doc/lsort.n, doc/regexp.n, doc/regsub.n, doc/string.n:
-
-	* tests/cmdIL.test:	Updated tests.
-	* tests/compile.test, tests/lindex.test, tests/linsert.test:
-	* tests/lrange.test, tests/lreplace.test, tests/lsearch.test:
-	* tests/lset.test, tests/regexp.test, tests/regexpComp.test:
-	* tests/string.test, tests/stringComp.test, tests/util.test:
-
-2005-04-28  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/unixInit.test (7.1): Alternative fix for the 2004-11-11 commit.
-
-2005-04-27  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/init.tcl:	Corrected flaw in interactive command
-	* tests/main.test:	auto-completion. [Bug 1191409].
-
-	TIP#183 IMPLEMENTATION	[Patch 577093]
-
-	* generic/tclIOUtil.c (TclGetOpenModeEx):	New routine.
-	* generic/tclInt.h:
-
-	* generic/tclIO.c (Tcl_OpenObjCmd):	Support for "b" and
-	* doc/open.n:		"BINARY" in "access" argument to [open].
-	* tests/ioCmd.test:
-
-2005-04-26  Kevin B. Kenny  <kennykb@users.sourceforge.net>
-
-	* generic/tclBinary.c (FormatNumber): Dredge the NaN out of the
-	internal representation if Tcl_GetDoubleFromObj returns TCL_ERROR on a
-	NaN.
-
-	* generic/tclObj.c (Tcl_GetDoubleFromObj): Restored silent
-	overflow/underflow behaviour that the merge of 2004-04-25 messed up.
-	Thanks to Don Porter for calling attention to this bug. Also removed an
-	uninitialised memory reference in this function that valgrind caught.
-	Also changed to return TCL_ERROR on a pure NaN.
-
-	* generic/tclStrToD.c (RefineResult): Added a test for the initial
-	approximation being HUGE_VAL; this test avoids EDOM being returned from
-	ldexp on some platforms on input values exceeding the floating point
-	range.
-
-	* tests/expr.test (expr-29.*, expr-30.*): Added further tests of
-	overflow/underflow on input conversions.
-
-2005-04-25  Kevin B. Kenny  <kennykb@users.sourceforge.net>
-
-	[kennykb-numerics-branch] Merged with HEAD.
-
-	* doc/CrtMathFunc.n:		Revised documentation for TIP 232
-
-2005-04-25  Daniel Steffen  <das@users.sourceforge.net>
-
-	* compat/string.h: fixed memchr() protoype for __APPLE__ so that we
-	build on Mac OS X 10.1 again.
-
-	* generic/tclNotify.c (TclFinalizeNotifier): fixed notifier not being
-	finalized in unthreaded core (was testing for notifier initialization
-	in current thread by checking thread id != 0 but thread id is always 0
-	in untreaded core).
-
-	* win/tclWinNotify.c (Tcl_WaitForEvent):
-	* unix/tclUnixNotfy.c (Tcl_WaitForEvent): don't call ScaleTimeProc for
-	zero wait times (as specified in TIP 233).
-
-	* unix/Makefile.in: added @PLAT_SRCS@ to SRCS and split out NOTIFY_SRCS
-	from UNIX_SRCS for parity with UNIX_OBJS & NOTIFY_OBJS.
-
-	* unix/tcl.m4 (Darwin): added configure checks for recently added
-	linker flags -single_module and -search_paths_first to allow building
-	with older tools (and on Mac OS X 10.1), use -single_module in SHLIB_LD
-	and not just T{CL,K}_SHLIB_LD_EXTRAS, added unexporting from Tk of
-	symbols from libtclstub to avoid duplicate symbol warnings, added
-	PLAT_SRCS definition for Mac OS X, defined MODULE_SCOPE to
-	__private_extern__.
-	(SC_MISSING_POSIX_HEADERS): added caching of dirent.h check.
-
-	* unix/configure: autoconf-2.59
-
-2005-04-25  Kevin B. Kenny  <kennykb@users.sourceforge.net>
-
-	* library/tzdata/America/Boise:
-	* library/tzdata/America/Chicago:
-	* library/tzdata/America/Denver
-	* library/tzdata/America/Indianapolis:
-	* library/tzdata/America/Los_Angeles:
-	* library/tzdata/America/Louisville:
-	* library/tzdata/America/Managua:
-	* library/tzdata/America/New_York:
-	* library/tzdata/America/Phoenix:
-	* library/tzdata/America/Port-au-Prince:
-	* library/tzdata/America/Indiana/Knox:
-	* library/tzdata/America/Indiana/Marengo:
-	* library/tzdata/America/Indiana/Vevay:
-	* library/tzdata/America/Kentucky/Monticello:
-	* library/tzdata/America/North_Dakota/Center:
-	* library/tzdata/Asia/Tehran:
-	Olson's tzdata2005i. Corrects exact time at which Standard Time was
-	adopted in the US (generally, noon, Standard Time, rather than noon,
-	Local Mean Time). Adopts new civil rules for Nicaragua and Iran.
-
-2005-04-25  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/init.tcl:	Use "ni" and "in" operators.
-
-2005-04-25  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c: fix for [Bug 1189274].
-
-2005-04-24  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclLiteral.c:	Silence compiler warnings.
-	* generic/tclObj.c:	[Bug 1188863].
-
-2005-04-22  Don Porter	<dgp@users.sourceforge.net>
-
-	The 2005-04-21 changes to Tcl_GetBooleanFromObj were done to bring it
-	into agreement with its docs. Further investigation reveals it was the
-	docs that were incorrect.
-
-	* doc/BoolObj.3:	Corrections to the documentation of
-	Tcl_GetBooleanFromObj to bring it into agreement with what this public
-	interface has always done, including noting the difference in function
-	between Tcl_GetBooleanFromObj and Tcl_GetBoolean.
-
-	* generic/tclGet.c:	Revised Tcl_GetBoolean to no longer be a
-	wrapper around Tcl_GetBooleanFromObj (different function!).
-
-	* generic/tclObj.c:	Removed TclGetTruthValueFromObj routine that
-	was added yesterday. Revisions so that only Tcl_GetBoolean-approved
-	values get the "boolean" Tcl_ObjType. This retains the fix for [Bug
-	1187123].
-	* tests/string.test:	Test string-23.0 for Bug 1187123.
-
-	* generic/tclInt.h:	Revert most recent change.
-	* generic/tclBasic.c:
-	* generic/tclCompCmds.c:
-	* generic/tclDictObj.c:
-	* generic/tclExecute.c:
-	* tests/obj.test:
-
-2005-04-21  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/GetInt.3:	Convert argument "string" to "str" to agree with code.
-	Also clarified a few details on int and double formats.
-	* generic/tclGet.c:	Radical code simplification. Converted
-	Tcl_GetFoo() routines into wrappers around Tcl_GetFooFromObj(). Reduces
-	code duplication, and the resulting potential for inconsistency.
-
-	* generic/tclObj.c:	Several changes:
-
-	- Re-ordered error detection code so all values with trailing garbage
-	  receive a "not an integer" message instead of an "integer too large"
-	  message.
-	- Removed inactive code meant to deal with strtoul* routines that fail
-	  to parse leading signs. All of them do, and if any are detected that
-	  do not, the correct fix is replacement with compat/strtoul*.c, not a
-	  lot of special care by the callers.
-	- Tcl_GetDoubleFromObj now avoids shimmering away a "wideInt" intrep.
-	- Fixed Tcl_GetBooleanFromObj to agree with its documentation and with
-	  Tcl_GetBoolean, accepting only "0" and "1" and not other numeric
-	  strings. [Bug 1187123]
-	- Added new private routine TclGetTruthValueFromObj to perform the more
-	  permissive conversion of numeric values to boolean that is needed by
-	  the [expr] machinery.
-
-	* generic/tclInt.h (TclGetTruthValueFromObj):	New routine.
-	* generic/tclExecute.c:	Updated callers to call new routine.
-	* generic/tclBasic.c:	Updated callers to call new routine.
-	* generic/tclCompCmds.c:	Updated callers to call new routine.
-	* generic/tclDictObj.c:	Updated callers to call new routine.
-	* tests/obj.test:	Corrected bad tests that actually expected
-	values like "47" and "0xAC" to be accepted as booleans.
-
-	* generic/tclLiteral.c: Disabled the code that forces some literals
-	into the "int" Tcl_ObjType during registration. We can re-enable it if
-	this change causes trouble, but it seems more sensible to let Tcl's
-	"on-demand" shimmering rule, and not try to pre-guess things.
-
-2005-04-20  Kevin B. Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch]
-	* doc/expr.n:
-	* doc/mathfunc.n (new file):	Revised documentation for TIP 232
-
-2005-04-20  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclGet.c (Tcl_GetInt):	Corrected error that did not
-	* generic/tclObj.c (Tcl_GetIntFromObj): permit 0x80000000 to be
-	recognized as an integer on TCL_WIDE_INT_IS_LONG systems [Bug 1090869].
-
-2005-04-20  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclFileName.c: Silenced a compiler warning about '/*' within
-	a comment.
-
-2005-04-19  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Added unsupported command
-	* generic/tclCmdAH.c:	[::tcl::unsupported::EncodingDirs] to permit
-	* generic/tclInt.h:	query/set of the encoding search path at
-	* generic/tclInterp.c:	the script level. Updated init.tcl to make
-	* library/init.tcl:	use of the new command. Also updated several
-	coding practices in init.tcl ("eq" for [string equal], etc.)
-
-2005-04-19  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/clock.tcl (Initialize): Put initialization code into a proc
-	to avoid inadvertently clobbering global variables. [Bug 1185933]
-	* tests/clock.test (clock-48.1): Added regression test for the above
-	bug.
-	Thanks to Ulrich Ring for reporting this bug.
-
-2005-04-16  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/Var.c (Tcl_ArrayObjCmd - ARRAY_NAMES): fix Tcl_Obj leak. [Bug
-	1084111]
-
-2005-04-16  Zoran Vasiljevic  <vasiljevic@users.sf.net>
-
-	* generic/tclIOUtil.c: force clenaup of the interp result in
-	TclLoadFile(). Some implementations of TclpFindSymbol() will seed the
-	interp result with error message when unable to find the requested
-	symbol (this is not considered to be an error).
-
-	Set of changes correcting huge memory waste (not a leak) when a thread
-	exits. This has been introduced in 8.4.7 within an attempt to correctly
-	cleanup after ourselves when Tcl library is being unloaded with the
-	Tcl_Finalize() call.
-
-	This fixes the [Bug 1178445]
-
-	* generic/tclInt.h: added prototypes for TclpFreeAllocCache() and
-	TclFreeAllocCache()
-
-	* generic/tclThreadAlloc.c: modified TclFinalizeThreadAlloc() to
-	explicitly call TclpFreeAllocCache with the NULL-ptr as argument
-	signalling cleanup of private tsd key used only by the threading
-	allocator.
-
-	* unix/tclUnixThrd.c: fixed TclpFreeAllocCache() to recognize when
-	being called with NULL argument. This is a signal for it to clean up
-	the tsd key associated with the threading allocator.
-
-	* win/tclWinThrd.c: renamed TclWinFreeAllocCache to TclpFreeAllocCache
-	and fixed to recognize when being called with NULL argument. This is a
-	signal for it to clean up the tsd key associated with the threading
-	allocator.
-
-2005-04-13  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/unixInit.test:	Disabled obsolete tests and removed code
-	* tests/encoding.test:	that supported them.
-	* generic/tclInterp.c:
-
-	* library/init.tcl:	Use auto-loading to bring in Tcl Module support
-	* library/tclIndex:	as needed. This reduces startup time by
-	* library/tm.tcl:	delaying this initialization to a later time.
-
-2005-04-15  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c: missing semicolons caused failure to compile
-	with TCL_COMPILE_DEBUG.
-
-2005-04-13  David Gravereaux  <davygrvy@pobox.com>
-
-	* generic/tclIO.c (Tcl_SetChannelBufferSize): Lowest size limit
-	* tests/io.test:	changed from ten bytes to one byte. Need for
-	* tests/iogt.test:	this change was proven by Ross Cartlidge
-	<rossc@cisco.com> where [read stdin 1] was grabbing 10 bytes followed
-	by starting a child process that was intended to continue reading from
-	stdin. Even with -buffersize set to one, nine chars were getting lost
-	by the buffersize over reading for the native read() caused by [read].
-
-2005-04-13  Don Porter	<dgp@users.sourceforge.net>
-
-	* unix/tclUnixInit.c (TclpGetEncodingNameFromEnvironment): Reversed
-	order of verifying candidate [encoding system] value, checking against
-	a table in memory first before calling Tcl_GetEncoding and potentially
-	scanning through the filesystem. Also ordered the table so that a
-	binary search could be used within it. Improves startup time a bit more
-	on some systems.
-
-2005-04-13  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/clock.n: Added a missing '--' on several [switch] commands to
-	improve performance of [clock format] and related operations. [FRQ
-	1182459]
-
-2005-04-13  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* doc/fcopy.n: Improved documentation on copying binary files, added an
-	example and mentioned the use of [file copy].
-	* doc/fconfigure.n: Improved documentation of -encoding binary option.
-	This is all following comments from Steve Manning <steve@manning.net>
-	on comp.lang.tcl that the current documentation was not clear.
-
-2005-04-13  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCompile.c:Commented out the functions
-	TclPrintInstruction(), TclPrintObject() and TclPrintSource() when not
-	debugging the compiler, as they are never called in that case.
-
-2005-04-12  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclInterp.c:	Corrected bad syntax of Tcl_Panic() call.
-
-	* generic/tclUtil.c (TclGetProcessGlobalValue):	More robust handling
-	of bad TclInitProcessGlobalValueProc behavior; an immediate panic
-	rather than a mysterious crash later.
-
-	* generic/tclEncoding.c:	Several changes to the way the
-	encodingFileMap cache is maintained. Previously, it was attempted to
-	keep the file map filled and up to date with changes in the encoding
-	search path. This contributed to slow startup times since it required
-	an expensive "glob" operation to fill the cache. Now the validity of
-	items in the cache are checked at the time they are used, so the cache
-	is permitted to fall out of sync with the encoding search path. Only
-	[encoding names] and Tcl_GetEncodingNames() now pay the full expense.
-	[Bug 1177363]
-
-2005-04-12  Kevin B. Kenny  <kennykb@acm.org>
-
-	* compat/strstr.c: Added default definition of NULL to accommodate
-	building on systems with badly broken headers. [Bug 1175161]
-
-2005-04-11  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* tools/tclZIC.tcl: Rewrote to take advantage of more features of Tcl
-	8.5 (on which it was dependent anyway). Also added a [package require]
-	line to formalize the relationship.
-
-2005-04-11  Kevin Kenny  <kennykb@users.sf.net>
-
-	[kennykb-numerics-branch] Merged with HEAD. Updated to libtommath 0.35.
-
-	* generic/tclBasic.c: Attempted to repeat changes that applied to
-	tclExecute.c in Miguel Sofer's commit of 2005-04-01, together with
-	(possibly) a few more uses of his new object creation macros. Also
-	plugged a memory leak in TclObjInvoke. [Bug 1180368]
-
-2005-04-10  Kevin Kenny  <kennykb@acm.org>
-
-	* library/tzdata/America/Montevideo:
-	* library/tzdata/Asia/Almaty:
-	* library/tzdata/Asia/Aqtau:
-	* library/tzdata/Asia/Aqtobe:
-	* library/tzdata/Asia/Baku:
-	* library/tzdata/Asia/Jerusalem:
-	* library/tzdata/Asia/Oral:
-	* library/tzdata/Asia/Qyzylorda:
-	* library/tzdata/Indian/Chagos:
-	* library/tzdata/Indian/Cocos:		Olson's tzdata2005h
-
-2005-04-10  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c (TclObjInvoke):	Plug memory leak. [Bug 1180368]
-
-2005-04-09  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c: fix possible leak of expansion Tcl_Objs
-
-2005-04-09  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/README: updated requirements for OS & developer tool versions
-	and other small fixes/cleanup.
-
-	* generic/tclListObj.c (Tcl_ListObjIndex): added missing NULL return
-	when getting index from an empty list.
-
-	* unix/tcl.m4 (Darwin): added -single_module linker flag to
-	TCL_SHLIB_LD_EXTRAS and TK_SHLIB_LD_EXTRAS.
-	* unix/configure: autoconf-2.59
-
-2005-04-08  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclInt.h (TclGetEncodingFromObj):	 New function to
-	* generic/tclEncoding.c (TclGetEncodingFromObj): retrieve a
-	Tcl_Encoding value, as well as cache it in the internal rep of a new
-	"encoding" Tcl_ObjType.
-	* generic/tclCmdAH.c (Tcl_EncodingObjCmd):	Updated to call new
-	function so that Tcl_Encoding's used by [encoding convert*] routines
-	are not freed too quickly. [Bug 1077262]
-
-2005-04-08  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCompCmds.c (TclCompileSwitchCmd): Rewritten to be able to
-	handle the other form of [switch] and generate slightly simpler (but
-	longer) code.
-
-2005-04-06  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/upvar.n, doc/unset.n, doc/tell.n, doc/tclvars.n, doc/subst.n:
-	* doc/seek.n, doc/scan.n, doc/regsub.n, doc/registry.n, doc/regexp.n:
-	* doc/read.n, doc/puts.n, doc/pkgMkIndex.n, doc/open.n, doc/lreplace.n:
-	* doc/lrange.n, doc/load.n, doc/llength.n, doc/linsert.n, doc/lindex.n:
-	* doc/lappend.n, doc/info.n, doc/gets.n, doc/format.n, doc/flush.n:
-	* doc/fileevent.n, doc/file.n, doc/fblocked.n, doc/close.n:
-	* doc/array.n, doc/Utf.3, doc/TraceVar.3, doc/StrMatch.3, doc/RegExp.3:
-	* doc/PrintDbl.3, doc/OpenTcp.3, doc/OpenFileChnl.3, doc/Object.3:
-	* doc/Notifier.3, doc/LinkVar.3, doc/IntObj.3, doc/Interp.3:
-	* doc/GetOpnFl.3, doc/GetIndex.3, doc/Eval.3, doc/CrtMathFnc.3:
-	* doc/CrtFileHdlr.3, doc/CrtCommand.3, doc/CrtChannel.3:
-	* doc/Backslash.3: Purge old .VS/.VE macro instances.
-
-	* tools/man2html2.tcl (IPmacro): Rewrote to understand what .IP really
-	is (.IP and .TP are really just two ways of doing the same thing).
-	Change below made this relevant.
-	* doc/re_syntax.n: Change some uses of .TP to .IP to work around bugs
-	in various *roff implementations. Also reworded the atom descriptions
-	slightly.
-
-2005-04-05  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c (ExprSrandFunc):  Replaced incursions into the
-	* generic/tclUtil.c (TclGetIntForIndex): intreps of numeric types with
-	simpler calls of Tcl_GetIntFromObj and Tcl_GetLongFromObj, now that
-	those routines are better behaved wrt shimmering. [Patch 1177219]
-
-2005-04-05  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclInt.h:
-	* generic/tclObj.c: Change in TclDecrRefCount and TclFreeObj, to speed
-	up the freeing of simple Tcl_Obj [Patch 1174551]
-
-2005-04-04  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c: small opts in obj handling
-
-2005-04-02  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclVar.c: converted a few function calls to macros.
-
-2005-04-01  Miguel Sofer  <msofer@users.sf.net>
-
-	* doc/ListObj.3:
-	* generic/tclBasic.c:
-	* generic/tclCmdIL.c:
-	* generic/tclConfig.c:
-	* generic/tclExecute.c:
-	* generic/tclInt.decls:
-	* generic/tclInt.h:
-	* generic/tclIntDecls.h:
-	* generic/tclListObj.c:
-	* generic/tclStubInit.c:
-	* generic/tclVar.c: Changed the internal representation of lists to
-	(a) reduce the malloc/free calls at list creation (from 2 to 1), (b)
-	reduce the cost of handling empty lists (we now never create a list
-	internal rep for them), (c) allow refcounting of the list internal rep.
-	The latter permits insuring that the pointers returned by
-	Tcl_ListObjGetElements remain valid even if the object shimmers away
-	from its original list type. This is [Patch 1158008]
-
-	* generic/tclExecute.c:
-	* generic/tclInt.h:
-	* generic/tclObj.c:
-	* generic/tclStringObj.c:
-	(1) defined new internal macros for creating and setting frequently
-	used obj types (int,long, wideInt, double, string). Changed TEBC to use
-	eg 'TclNewIntObj(objPtr, i)' to avoid the function call in 'objPtr =
-	Tcl_NewIntObj(i)'
-	(2) ExecEnv now stores two Tcl_Obj* pointing to the constants "0" and
-	"1", for use by TEBC.
-	(3) slight reduction in cost of INST_START_CMD
-
-2005-03-31  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c (INST_JUMP_TRUE/FALSE): replaced "test and
-	branch" with "compute index into table"
-
-2005-03-30  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* doc/FileSystem.3: Defined loadHandle argument. [Bug 1172401]
-
-2005-03-29  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* win/tcl.m4, win/configure: do not require cygpath in macros to allow
-	msys alone as an alternative.
-
-2005-03-24  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompile.h:	Move the TclInterpReady() declaration from
-	* generic/tclInt.h:	tclCompile.h to tclInt.h. Should have been done
-	as part of the 1115904 bug fix on 2005-03-18.
-
-	* generic/tclThreadTest.c:	Stop providing the phony package
-	"Thread 1.0" when the [::testthread] command is defined. It's never
-	used by anything, and conflicts with loading the real "Thread" package.
-
-2005-03-18  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompCmds.c (TclCompileIncrCmd):	Corrected checks for
-	immediate operand usage to permit leading space and sign characters.
-	Restores more efficient bytecode for [incr x -1] that got lost in the
-	CONST string reforms of Tcl 8.4. [Bug 1165671]
-
-	* generic/tclBasic.c (Tcl_EvalEx):	Restored recursion limit
-	* generic/tclParse.c (TclSubstTokens):	testing in nested command
-	* tests/basic.test (basic-46.4):	substitutions within direct
-	* tests/parse.test (parse-19.*):	script evaluation (Tcl_EvalEx)
-	that got lost in the parser reforms of Tcl 8.1. Added tests for correct
-	behavior. [Bug 1115904]
-
-2005-03-15  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFileName.c:
-	* win/tclWinFile.c:
-	* tests/winFCMd.test: fix to 'file pathtype' and 'file norm' failures
-	on reserved filenames like 'COM1:', etc.
-
-2005-03-15  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* unix/tcl.m4:	  Updated the OpenBSD configuration and regenerated
-	* unix/configure: the configure script.
-
-2005-03-15  Kevin B. Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch] Merged with HEAD.
-
-	* generic/tclBasic.c (many):
-	* generic/tclCompExpr.c (CompileMathFuncCall):
-	* generic/tclCompile.h:
-	* generic/tclExecute.c (many):
-	* generic/tclParseExpr.c (ParsePrimaryExpr):
-	* tests/compExpr-old.test:
-	* tests/compExpr.test:
-	* tests/compile.test:
-	* tests/expr-old.test:
-	* tests/expr.test:
-	* tests/for.test:
-	* tests/parseExpr.test: Initial implementation of TIP #232.
-
-	* generic/tclObj.c (Tcl_DbNewBignumObj): Fixed typo that broke
-	--enable-symbols=mem build
-	* tests/binary.test (binary-40.3, binary-40.6): Corrected tests to
-	allow NaN(7ffffffffffff).
-
-2005-03-14  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c: fixed INST_PUSH1's debugging code (wrong obj
-	ref passed to TRACE_WITH_OBJ).
-
-2005-03-14  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCompile.c: fixed INST_RETURN's stack effect in
-	tclInstructionTable (-1 instead of -2)
-
-2005-03-10  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCompCmds.c: removed debugging line
-
-2005-03-10  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclTrace.c (TclCheckInterpTraces):	Corrected mistaken cast
-	of ClientData to (TraceCommandInfo *) when not warranted. Thanks to
-	Yuri Victorovich for the report. [Bug 1153871]
-	* generic/tcl.h:	Moved flag values TCL_TRACE_ENTER_EXEC and
-	* generic/tclInt.h:	TCL_TRACE_LEAVE_EXEC from public interface into
-	private. Should be used only by internal workings of execution traces.
-
-2005-03-09  Kevin B. Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch] Merged from HEAD.
-
-	* doc/PrintDbl.3:
-	* doc/tclVars.n: Documented new semantics for tcl_precision.
-	* generic/tclExecute.c (Tcl_ExecuteByteCode): Removed the check for
-	division-by-zero on IEEE-754 machines.
-	* generic/tclUtil.c (Tcl_PrintDouble): Corrected bug where numbers in
-	the range [1e-4 .. 1.) were printed incorrectly.
-	* tests/compExpr-old.test (compExpr-old-11.13): Revised test case for
-	division by zero.
-	* tests/expr-old.test (expr-34.11, expr-34.12): Revised test cases for
-	overflow in pow() to deal with infinities.
-	* tests/expr.test (expr-11.13, expr-29.1, expr-29.2): Revised test case
-	for division by zero and for underflow on input conversions.
-	* tests/parseExpr.test (parseExpr-16.11): Revised test case for
-	overflow on input conversion.
-	* tests/string.test (string-6.38 deleted): Removed test case for
-	underflow on input conversion, which is no longer an error.
-	* tests/util.test (util-10.*): Added test case for the bug in tclUtil.c
-
-2005-03-08  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* win/makefile.vc: clarify necessary defined vars that can come from
-	MSVC or the Platform SDK.
-
-2005-03-07  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/string.n: Minor typo. [Bug 1158247]
-
-2005-03-07  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c: new peephole optimisation for INST_PUSH1; fixed
-	the peephole opt in INST_POP so that it is not used when
-	TCL_COMPILE_DEBUG is defined.
-
-2005-03-04  Kevin B. Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclCmdMZ.c: Changed [scan] to treat out-of-range floating
-	point values as infinities and zeroes.
-	* generic/tclExecute.c: Changed [expr] to be permissive about
-	infinities, allowing them to propagate.
-	* generic/tclGet.c: Changed Tcl_GetDouble to be permissive about
-	over/underflow.
-	* generic/tclObj.c: Changed SetDoubleFromAny to be permissive about
-	over/underflow.
-	* generic/tclParseExpr.c: Made [expr] permissive about input numbers
-	out of range.
-
-2005-03-03  Kevin B. Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclInt.h:
-	* generic/tclStrToD.c (Tcl_DoubleDigits, TclFormatNaN):
-	* generic/tclUtil.c (Tcl_PrintDouble): Changed the signature of
-	TclDoubleDigits so that it accepts a pointer to the signum of the
-	argument, and returns the signum via that pointer. Added very hacky
-	code to handle IEEE signed zeroes in Tcl_DoubleDigits. (It can't be
-	done other than as a hack until C9x; C89 simply doesn't deal with the
-	concept of -0.0). Added output conversion of tagged NaN values.
-	* generic/tclBinary.c (FormatNumber): Changed to allow [binary format]
-	to handle NaN.
-	* tests/binary.test (binary-60.1): Added a quick-n-dirty test to make
-	sure that NaN's can be scanned and formatted.
-	* generic/tclParseExpr.c (GetLexeme, ParseMaxDoubleLength): Modified so
-	that tagged NaN (e.g., NaN(DEADBEEF)) can be recognized.
-
-2005-03-02  Kevin B. Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch] Merged with HEAD as of 2005-02-23.
-
-	* generic/tclExecute.c: Broadened test for NaN to work on Windows.
-	* generic/tclInt.h:
-	* generic/tclStrToD.c (Tcl_DoubleDigits):
-	* generic/tclUtil.c (Tcl_PrintDouble, TclPrecTraceProc): Added
-	Tcl_DoubleDigits to format 'double' numbers with the minimum number of
-	significant digits to yield correct rounding. Modified tcl_precision
-	to accept 0 as a precision (meaning "minimum digits"), and made 0 the
-	default. [TIP #132]
-	* generic/tclObj.c: Made NaN's throw an error in Tcl_GetDoubleFromObj.
-	* unix/Makefile.in:
-	* win/Makefile.in:
-	* win/makefile.vc: Added libtommath/bn_mp_init_set.c to the build.
-	* libtommath/tommath.h (mp_iseven): Fixed a bug that caused zero to
-	test 'odd'.
-	* generic/tommath.h: Regenerated.
-	* tests/binary.test:
-	* tests/expr-old.test:
-	* tests/expr.test:
-	* tests/scan.test: Corrected a number of tests that depended on
-	tcl_precision, and removed the {eformat} condition from tests that no
-	longer require it.
-	* tests/util.test: Corrected a number of tests that depended on
-	tcl_precision, and removed the {eformat} condition from tests that no
-	longer require it. Added a series of tests for correct rounding in
-	Tcl_PrintDouble. [TIP #132].
-
-2005-03-01  David N. Welton  <davidw@dedasys.com>
-
-	* doc/CrtSlave.3: Changed to Tcl_Object to Tcl_Obj in the man page.
-
-2005-02-24  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl:	Better use of [glob -types] to avoid
-	* tests/tcltest.test:	failed attempts to [source] a directory, and
-	similar matters. Thanks to "mpettigr". [Bug 1119798]
-
-	* library/tcltest/pkgIndex.tcl: Bump to tcltest 2.2.8
-	* unix/Makefile.in:
-	* win/Makefile.in:
-
-2005-02-23  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/CrtChannel.3 (THREADACTIONPROC): Formatting fix. [Bug 1149605]
-
-2005-02-17  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* win/tclWinFCmd.c (TraverseWinTree): use wcslen on wchar, not
-	Tcl_UniCharLen.
-
-2005-02-16  Miguel Sofer  <msofer@users.sf.net>
-
-	* doc/variable.n: fix for [Bug 1124160], variables are detected by
-	[info vars] but not by [info locals].
-
-2005-02-11  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* unix/Makefile.in: remove SHLIB_LD_FLAGS (only for AIX, inlined into
-	* unix/tcl.m4:	    SHLIB_LD). Combine AIX-* and AIX-5 branches in
-	* unix/configure:   SC_CONFIG_CFLAGS. Correct gcc builds for AIX-4+
-	and HP-UX-11. autoconf-2.59 gen'd.
-
-2005-02-11  Miguel Sofer  <msofer@users.sf.net>
-
-	* tests/basic.test (basic-26.3): new test
-
-2005-02-10  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclBasic.c (Tcl_EvalObjEx):
-	* tests/basic.test (basic-26.2): preserve the arguments passed to TEOV
-	in the pure-list branch, in case the list shimmers away. Fix for [Bug
-	1119369], reported by Peter MacDonald.
-
-2005-02-10  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFileName.c: fix for test failures introduced on 2005-01-17
-	[Bug 1119092]
-
-2005-02-10  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/binary.n: Made the documentation of sign bit masking and [binary
-	scan] consistent. [Bug 1117017]
-
-2005-02-08  David N. Welton  <davidw@dedasys.com>
-
-	* doc/CrtChannel.3: Typo: return->returns.
-
-2005-02-06  Kevin B. Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclStrToD.c (TclStrToD, SafeLdExp): Added code to manage the
-	FPU precision on gcc+x86. Enabled fast conversion of floats with small
-	exponents now that precision is correct.
-	* tests/expr.test: Corrected test for the smallest representible value
-	to the right IEEE values.
-
-2005-02-06  David N. Welton  <davidw@dedasys.com>
-
-	* doc/Thread.3: One-word grammar fix.
-
-2005-02-05  David N. Welton  <davidw@dedasys.com>
-
-	* doc/Thread.3: Fixed sentence describing flags for Tcl_CreateThread.
-
-	* doc/FileSystem.3: Cleaned up typo in Tcl_FSNewNativePath
-	documentation.
-
-	* generic/tclPathObj.c: Cleaned up typo in comment.
-
-2005-02-03  Kevin B. Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch]
-
-	* generic/tclStrToD.c (TclStrToD, RefineResult, SafeLdExp): Added code
-	to ensure that 'ldexp' is never called with a value that will underflow
-	* tests/expr.test: Added tests for the smallest representible value,
-	and rounding between it and zero. (The tests reflect current
-	behaviour; plan is to change the specification of Tcl so that input
-	conversion of doubles underflows silently.)
-
-2005-02-02  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tclProc.c (TclInitCompiledLocals): Add check for type of the
-	framePtr->procPtr->bodyPtr passed to TclInitCompiledLocals and panic if
-	it is not the correct type. If the body of the proc is not of the
-	compiled byte code type then the code will crash. This was discovered
-	while tracking down a crash in Itcl, that crash is fixed by Itcl patch
-	1115085.
-
-2005-02-01  Kevin B. Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch]  Merged with HEAD as of today.
-
-	* generic/tclInt.decls: Changed numbers of new stubs to resolve a
-	conflict.
-	* generic/tclInt.h: Added new TclStrToD routine that replaces the
-	native 'strtod' throughout Tcl.
-	* generic/tclCmdMZ (Tcl_StringObjCmd):
-	* generic/tclGet.c (Tcl_GetDouble):
-	* generic/tclObj.c (SetBooleanFromAny, SetDoubleFromAny):
-	* generic/tclParseExpr.c (GetLexeme):
-	* generic/tclScan.c (Tcl_ScanObjCmd): Replaced all uses of the native
-	'strtod' with a TclStrToD routine that performs correct rounding and
-	handles denormals.
-	* generic/tclStrToD.c: (new file)
-	New scanning function for extracting 'double' from a string that rounds
-	correctly, and handles denormals and infinities.
-	* unix/Makefile.in:
-	* win/Makefile.in:
-	* win/makefile.vc:
-	Added tclStrToD.c and the tommath routines that support it.
-
-	These changes represent a partial implementation of TIP #132. Output
-	conversion of floating point numbers, and proper handling of infinities
-	within expressions, still need to be addressed.
-
-2005-02-01  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c (TclCompEvalObj): Removed stray statement left
-	behind in prior code reorganization.
-
-2005-01-31  Don Porter	<dgp@users.sourceforge.net>
-
-	* unix/configure:	autoconf-2.57
-
-2005-01-30  Joe English  <jenglish@users.sourceforge.net>
-
-	* unix/configure.in: Restored two double-evals that were removed in the
-	DBGX purge; these are still needed on some platforms to account for
-	TCL_TRIM_DOTS. [Bug 1112654]
-
-	* unix/configure: NOT REGENERATED: only have autoconf 2.59 here, need
-	to find someone with autoconf 2.57.
-
-2005-01-28  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* unix/configure, unix/tcl.m4: add solaris 64-bit gcc build support.
-	[Bug 1021871]
-
-2005-01-28  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tests/expr-old.test (expr-old-37.2): Added test for [Bug 1109484]
-
-2005-01-27  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclBasic.c (Tcl_ExprBoolean, Tcl_ExprDouble)
-	(Tcl_ExprLong): Fix to recognize Tcl_WideInt type. [Bug 1109484]
-
-2005-01-26  Andreas Kupries  <andreask@activestate.com>
-
-	TIP#218 IMPLEMENTATION
-
-	* generic/tclDecls.h:	Regenerated from tcl.decls.
-	* generic/tclStubInit.c:
-
-	* doc/CrtChannel.3:	Documentation of extended API,
-	* generic/tcl.decls:	extended testsuite, and
-	* generic/tcl.h:	implementation. Removal of old
-	* generic/tclIO.c:	driver-specific TclpCut/Splice
-	* generic/tclInt.h:	functions. Replaced with generic
-	* tests/io.test:	thread-action calls through the
-	* unix/tclUnixChan.c:	new hooks. Update of all builtin
-	* unix/tclUnixPipe.c:	channel drivers to version 4.
-	* unix/tclUnixSock.c:	Windows drivers extended to
-	* win/tclWinChan.c:	manage thread state in a thread
-	* win/tclWinConsole.c:	action handler.
-	* win/tclWinPipe.c:
-	* win/tclWinSerial.c:
-	* win/tclWinSock.c:
-
-2005-01-25  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/auto.tcl:	Updated [auto_reset] to clear auto-loaded
-	commands in namespaces other than :: and to clear auto-loaded commands
-	that do not happen to be procs. [Bug 1101670]
-	***POTENTIAL INCOMPATIBILITY***
-
-2005-01-25  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tcl.m4 (Darwin): fixed bug with static build linking to dynamic
-	library in /usr/lib etc instead of linking to static library earlier in
-	search path. [Bug 956908] Removed obsolete references to Rhapsody.
-	* unix/configure: autoconf-2.57
-
-2005-01-21  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclStubInit.c: Regenerated the stubs support code from the
-	* generic/tclDecls.h:	 modified tcl.decls (TIP #233, see below).
-
-	* doc/GetTime.3:       Implemented TIP #233, i.e. the
-	* generic/tcl.decls:   'Virtualization of Tcl's Sense of Time'.
-	* generic/tcl.h:       Declared, implemented, and documented the
-	* generic/tclInt.h:    specified new API functions. Moved the
-	* unix/tclUnixEvent.c: native (OS) access to time information
-	* unix/tclUnixNotfy.c: into standard handler functions. Inserted
-	* unix/tclUnixTime.c:  hooks calling on the handlers where native
-	* win/tclWinNotify.c:  access was done before, and where scaling
-	* win/tclWinTime.c:    between domains (real/virtual) is required.
-
-2005-01-21  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclThread.c: Typo police. Fixed some nits
-	* generic/tclCmdAH.c:  in header comments of functions.
-	* generic/tclBasic.c:  (Missing --).
-	* generic/tclFileName.c:
-
-2005-01-21  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/FileSystem.3: Add missing ARGUMENTS section definitions for
-	arguments to Tcl_FSLink. [Bug 1106272]
-
-2005-01-21  Kevin B. Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch]
-
-	* unix/Makefile.in: Updated Makefile to build libtommath on Unix as
-	well as Windows. [Bug 1106865]
-
-	* generic/tclTestObj.c (TestbignumobjCmd): Silenced a compiler warning
-	about a mismatched 'const'.
-
-2005-01-20  Kevin B. Kenny  <kennykb@acm.org>
-
-	[kennykb-numerics-branch] Development checkpoint.
-
-	* compat/strtoll.c:	Reverted to HEAD.
-	* compat/strtoull.c:
-	* doc/Ensemble.3:
-	* generic/tclBasic.c:
-	* generic/tclCmdIL.c:
-	* generic/tclNamesp.c:
-	* generic/tclPathObj.c:
-	* generic/tclPort.h:
-	* unix/configure:
-	* unix/configure.in:
-	* unix/tcl.m4:
-	* win/configure:
-	* win/configure.in:
-	* win/rules.vc:
-	* win/tcl.m4:
-
-	* generic/tcl.h: Added declarations for bignum types, and for a
-	'bignumValue' in the Tcl_Obj structure.
-	* generic/tclInt.h: Added declarations of interface procedures for
-	memory allocation in libtommath.
-
-	* generic/tcl.decls: Added new interface to bignum objects.
-	* generic/tclInt.decls: Added internal stubs for bignum routines used
-	by the test code in tclTestObj.c.
-
-	* generic/tclDecls/h: Regen.
-	* generic/tclIntDecls.h:
-	* generic/tclStubInit.h:
-
-	* tools/fix_tommath_h.tcl: (New file) Script to edit
-	libtommath/tommath.h and produce generic/tommath.h so that storage
-	classes, allocation routines, and data types conform to Tcl's
-	conventions.
-	* generic/tommath.h: (New file) Generated by the above.
-
-	* generic/tclTomMath.h: (New file) Additional declarations to be
-	included in tommath.h when building Tcl.
-
-	* generic/tclTomMathInterface.c: (New file) Small 'glue' routines
-	adapting tommath's API to Tcl.
-
-	* libtommath/bn_fast_s_mp_mul_digs.c:
-	* libtommath/bn_mp_mul_d.c:
-	* libtommath/bn_mp_read_radix.c:
-	* libtommath/tommath.h: Applied suggested changes from Tom St Denis
-	that correct an off-by-one error in single-digit multiplication
-	(leading to a pointer smash if uncorrected) and change the string
-	argument to 'mp_read_radix' from 'char*' to 'const char*'.
-
-	* libtommath/bn_mp_radix_size.c: Local patch to ensure that sufficient
-	memory is requested even if the number has a single digit.
-
-	* libtommath/bn_mp_read_radix.c: Local patch to return MP_VAL if the
-	input string contains an invalid character.
-
-	* generic/tclObj.c: Added accessor functions for bignums.
-	* generic/tclTestObj.c: Added a 'testbignumobj' command to exercise the
-	accessor functions for bignums.
-
-	* win/Makefile.in: Added rules for making libtommath.
-
-2005-01-19  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	TIP#235 IMPLEMENTATION
-
-	* doc/Ensemble.3: Documentation for the new public API.
-	* generic/tclNamesp.c (Tcl_CreateEnsemble,...): Rename of
-	* generic/tcl.decls:		existing API into TIPped form.
-
-2005-01-19  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/tclWinChan.c (FileCloseProc): Invoke TclpCutFileChannel() to
-	remove a FileInfo from the thread local list before deallocating it.
-	This should have been done via an earlier call to Tcl_CutChannel, but I
-	was running into a crash in the next call to Tcl_CutChannel during the
-	I/O finalization stage.
-
-2005-01-18  Kevin Kenny  <kennykb@acm.org>
-
-	* library/tzdata/GMT+0:
-	* library/tzdata/GMT-0:
-	* library/tzdata/GMT0:
-	* library/tzdata/Greenwich:
-	* library/tzdata/Navajo:
-	* library/tzdata/Universal:
-	* library/tzdata/Zulu:
-	* library/tzdata/America/Asuncion:
-	* library/tzdata/America/Rosario:
-	* library/tzdata/Asia/Jerusalem:
-	* library/tzdata/Brazil/Acre:
-	Routine update per Olson's tzdata2005c. Removed links to links
-	(Greenwich in several aliases; Navajo; Acre). Updated Paraguayan DST
-	rules and "best guess" at this year's Israeli rules.
-
-2005-01-17  Vince Darley  <vincentdarley@users.sourceforge.net>
-
-	* generic/tclFileName.c: fix for glob failure on Windows shares [Bug
-	1100542].
-
-	* doc/pkgMkIndex.n: added documentation that 'pkg_mkIndex -lazy' is not
-	a good idea. [Bug 1101678]
-
-2005-01-14  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tests/compile.test (compile-17.1): Document known issue with binding
-	time of compiled command interpretations in [expr].
-
-	* generic/tclIOUtil.c (TclFSFileAttrIndex): New helper function so that
-	we don't need to hard-code attribute indexes. [Bug 1100671]
-
-2005-01-13  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/string.n: Removed the term 'set' from the documentation of the
-	[string trim] commands, as it caused confusion.
-
-2005-01-12  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* unix/tcl.m4 (SC_PATH_{TCL,TK}CONFIG): Added code to detect the case
-	when the --with-tcl/--with-tk arguments point to the config scripts
-	themselves and not their directory. If this is the case, they now
-	complain but keep working. [FRQ 951247]
-	* unix/configure:	autoconf-2.57
-
-2005-01-10  Joe English  <jenglish@users.sourceforge.net>
-
-	* unix/Makefile.in, unix/configure.in, unix/tcl.m4,
-	* unix/tclConfig.sh.in, unix/dltest/Makefile.in:
-	Remove ${DBGX}, ${TCL_DBGX} from Tcl build system [Patch 1081595].
-	* unix/configure: regenerated
-
-2005-01-10  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* unix/tclUnixFCmd.c (TclUnixCopyFile): Convert u_int to unsigned to
-	make clashes with types in standard C headers less of a problem. [Bug
-	1098829]
-
-2005-01-09  Joe English  <jenglish@users.sourceforge.net>
-
-	* unix/tclUnixThrd.c, unix/tclUnixPort.h: Remove readdir_r() and
-	related #ifdeffery (see [Bug 1095909]).
-	* unix/tcl.m4, unix/tclConfig.h.in: Don't check for HAVE_READDIR_R.
-	* unix/configure: Regenerated.
-
-2005-01-06  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* library/http/http.tcl (http::mapReply): Significant performance
-	enhancement by using [string map] instead of [regsub]/[subst], and
-	update version requirement to Tcl8.4. [Bug 1020491]
-
-2005-01-05  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/lsearch.n, doc/re_syntax.n: Convert to other form of emacs mode
-	control comment to prevent problems with old versions of man. [Bug
-	1085127]
-
-2005-01-05  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* tests/winDde.test: Fixed broken test result.
-
-2005-01-05  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclInt.h, generic/tclPort.h: Move the #include of tclConfig.h
-	*first* before any reference to tcl.h so that the build configuration
-	is loaded before the first reference to any system headers. Issue
-	reported by Art Haas on tcl-core.
-
-2005-01-04  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/fCmd.test (fCmd-18.10):	Added notNetworkFilesystem constraint.
-	[Bug 456665]
-
-	******************************************************************
-	*** CHANGELOG ENTRIES FOR 2004 IN "ChangeLog.2004"	       ***
-	*** CHANGELOG ENTRIES FOR 2003 IN "ChangeLog.2003"	       ***
-	*** CHANGELOG ENTRIES FOR 2002 IN "ChangeLog.2002"	       ***
-	*** CHANGELOG ENTRIES FOR 2001 IN "ChangeLog.2001"	       ***
-	*** CHANGELOG ENTRIES FOR 2000 IN "ChangeLog.2000"	       ***
-	*** CHANGELOG ENTRIES FOR 1999 AND EARLIER IN "ChangeLog.1999" ***
-	******************************************************************
diff --git a/ChangeLog.2007 b/ChangeLog.2007
deleted file mode 100644
index e01a50e..0000000
--- a/ChangeLog.2007
+++ /dev/null
@@ -1,5921 +0,0 @@
-2007-12-31  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/dict.n: Clarified meaning of dictionary values following
-	discussion on comp.lang.tcl.
-
-2007-12-26  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCmdIL.c: More [lsort] data handling streamlines. The
-	function MergeSort is gone, essentially inlined into Tcl_LsortObjCmd.
-	It is not a straight inlining, two loops over all lists elements where
-	merged in the process: the linked list elements are now built and
-	merged into the temporary sublists in the same pass.
-
-2007-12-25  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCmdIL.c: More [lsort] data handling streamlines. Extra
-	mem reqs of latest patches removed, restored to previous mem profile.
-	Improved -unique handling, now eliminating repeated elems immediately
-	instead of marking them to avoid reinsertion at the end.
-
-2007-12-23  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclCompCmds.c (TclCompileRegexpCmd):	TCL_REG_NOSUB cannot
-	* tests/regexp.test (regexp-22.2):		be used because it
-	* tests/regexpComp.test:	[Bug 1857126]	disallows backrefs.
-
-2007-12-21  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCmdIL.c: Speed patch for lsort. [Patch 1856994]
-
-2007-12-21  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCmdIL.c (Tcl_LsortObjCmd, Tcl_LsearchObjCmd): Avoid
-	calling SelectObjFromSublist when there are no sublists.
-
-2007-12-21  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCmdIL.c (Tcl_LsortObjCmd): Preallocate a listObj of
-	sufficient length for the sorted list instead of growing it. Second
-	commit replaces calls to Tcl_ListObjAppenElement with direct access to
-	the internal rep.
-
-2007-12-19  Don Porter	<dgp@users.sourceforge.net>
-
-	*** 8.5.0 TAGGED FOR RELEASE ***
-
-	* changes:		Updated for 8.5.0 release.
-
-2007-12-19  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclCompCmds.c (TclCompileSwitchCmd):	update switch -regexp
-	* tests/switch.test-14.*:			compilation to pass
-	the cflags to INST_REGEXP (changed on 12-07). Added tests for switch
-	-regexp compilation (need more). [Bug 1854399]
-
-2007-12-18  Don Porter	<dgp@users.sourceforge.net>
-
-	* changes:		Updated for 8.5.0 release.
-
-2007-12-18  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/regguts.h, generic/regc_color.c, generic/regc_nfa.c:
-	Fixes for problems created when processing regular expressions that
-	generate very large automata. An enormous number of thanks to Will
-	Drewry <wad_at_google.com>, Tavis Ormandy <taviso_at_google.com>,
-	and Tom Lane <tgl_at_sss.pgh.pa.us> from the Postgresql crowd for
-	their help in tracking these problems down. [Bug 1810264]
-
-2007-12-17  Don Porter	<dgp@users.sourceforge.net>
-
-	* changes:		Updated for 8.5.0 release.
-
-2007-12-17  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclAlloc.c:
-	* generic/tclExecute.c:
-	* generic/tclInt.h:
-	* generic/tclThreadAlloc.c: Fix alignment for memory returned by
-	TclStackAlloc; insure that all memory allocators align to 16-byte
-	boundaries on 64 bit platforms [Bug 1851832, 1851524]
-
-2007-12-14  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclIOUtil.c (FsAddMountsToGlobResult): fix the tail
-	conversion of vfs mounts. [Bug 1602539]
-
-	* win/README: updated notes
-
-2007-12-14  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* tests/winFile.test: Fixed tests for win2k with long machine name
-
-2007-12-14  Pat Thoyts <patthoyts@users.sourceforge.net>
-
-	* win/nmakehlp.c:  Support compilation with MSVC9 for AMD64.
-	* win/makefile.vc:
-
-2007-12-13  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* doc/trace.n: Clarified documentation of enterstep and leavestep
-	traces, including adding example. [Bug 614282, 1701540, 1755984]
-
-2007-12-12  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/IntObj.3:	Update docs for the Tcl_GetBignumAndClearObj() ->
-	Tcl_TakeBignumFromObj() revision [TIP 298]. Added docs for the
-	Tcl_InitBignumFromDouble() routine. [Bug 1446971]
-
-	* changes:		Updated for 8.5.0 release.
-
-2007-12-10  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclUtil.c (TclReToGlob): reduce escapes in conversion
-	when not necessary
-
-	* generic/tclInt.decls:	 move TclByteArrayMatch and TclReToGlob
-	* generic/tclIntDecls.h: to tclInt.h from stubs.
-	* generic/tclStubInit.c: Add flags var to TclByteArrayMatch for
-	* generic/tclInt.h:	 future extensibility
-	* generic/tcl.h:  define TCL_MATCH_EXACT doc for Tcl_StringCaseMatch.
-	* doc/StrMatch.3: It is compatible with existing usage.
-	* generic/tclExecute.c (INST_STR_MATCH): flag for TclByteArrayMatch
-	* generic/tclUtil.c (TclByteArrayMatch, TclStringMatchObj):
-	* generic/tclRegexp.c (Tcl_RegExpExecObj):
-	* generic/tclCmdMZ.c (StringMatchCmd): Use TclStringMatchObj
-	* tests/string.test (11.9.* 11.10.*): more tests
-
-2007-12-10  Joe English	 <jenglish@users.sourceforge.net>
-
-	* doc/string.n, doc/UniCharIsAlpha.3: Fix markup errors.
-	* doc/CrtCommand.3, doc/CrtMathFnc.3, doc/FileSystem.3,
-	* doc/GetStdChan.3, doc/OpenFileChnl.3, doc/SetChanErr.3,
-	* doc/eval.n, doc/filename.n: Consistency: Move "KEYWORDS" section
-	after "SEE ALSO".
-
-2007-12-10  Daniel Steffen  <das@users.sourceforge.net>
-
-	* tools/genStubs.tcl:		fix numerous issues handling 'macosx',
-					'aqua' or 'x11' entries interleaved
-					with 'unix' entries [Bug 1834288]; add
-					genStubs::export command
-					[Tk FR 1716117]; cleanup formatting.
-
-	* generic/tcl.decls:		use new genstubs 'export' command to
-	* generic/tclInt.decls:		mark exported symbols not in stubs
-	* generic/tclTomMath.decls:	table [Tk FR 1716117]; cleanup
-					formatting.
-
-	* generic/tclDecls.h:		regen with new genStubs.tcl.
-	* generic/tclIntDecls.h:	[Bug 1834288]
-	* generic/tclIntPlatDecls.h:
-	* generic/tclPlatDecls.h:
-	* generic/tclStubInit.c:
-
-2007-12-09  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* tests/io.test, tests/chanio.test (io-73.1): Make sure to invalidate
-	* generic/tclIO.c (SetChannelFromAny):	      internal rep only after
-	validating channel rep. [Bug 1847044]
-
-2007-12-08  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/expr.n, doc/mathop.n: Improved the documentation of the
-	operators. [Bug 1823622]
-
-	* generic/tclBasic.c (builtInCmds): Corrected list of hidden and
-	* doc/interp.n (SAFE INTERPRETERS): exposed commands so that the
-	documentation and reality now match. [Bug 1662436]
-
-2007-12-07  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclExecute.c (TclExecuteByteCode INST_REGEXP):
-	* generic/tclCompCmds.c (TclCompileRegexpCmd): Pass correct RE
-	compile flags at compile time, and use TCL_REG_NOSUB.
-
-	* generic/tclIOCmd.c (FinalizeIOCmdTSD, Tcl_PutsObjCmd): cache
-	stdout channel object for [puts $str] calls.
-
-2007-12-06  Don Porter	<dgp@users.sourceforge.net>
-
-	* README:	Remove mention of dead comp.lang.tcl.announce
-	newsgroup. [Bug 1846433]
-
-	* unix/README:	Mention the stub library created by `make` and warn
-	about the effect of embedded paths in the installed binaries.
-	Thanks to Larry Virden. [Bug 1794084]
-
-	* doc/AddErrInfo.3:	Documentation for the new routines in TIP 270.
-	* doc/Interp.3:
-	* doc/StringObj.3:
-
-2007-12-06  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/namespace.n:	Documentation for zero-argument form of
-	[namespace import] (TIP 261) [Bug 1596416]
-
-2007-12-06  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclInt.h: add TclGetChannelFromObj decl
-	(TclMatchIsTrivial): simplify TclMatchIsTrivial to remove ] check.
-
-2007-12-06  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-
-	* generic/tclBasic.c (Tcl_CreateInterp): Simplify the setting up of
-	* generic/tclIOCmd.c (TclInitChanCmd):	 the [chan] ensemble. This
-	* library/init.tcl:			 gets rid of quite a bit of
-	code and makes it possible to understand the whole with less effort.
-
-	* generic/tclCompCmds.c (TclCompileEnsemble): Ensure that the right
-	number of tokens are copied. [Bug 1845320]
-
-	* generic/tclNamesp.c (TclMakeEnsemble): Added missing release of a
-	DString. [Bug 1845397]
-
-2007-12-05  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclIO.h:    Create Tcl_Obj for Tcl channels to reduce
-	* generic/tclIO.c:    overhead in lookup by Tcl_GetChannel. New
-	* generic/tclIOCmd.c: TclGetChannelFromObj for internal use.
-	* generic/tclIO.c (WriteBytes, WriteChars): add opt check to avoid
-	EOL translation when not linebuffered or using lf. [Bug 1845092]
-
-2007-12-05  Miguel Sofer  <msofer@users.sf.net>
-
-	* tests/stack.test: made the tests for stack overflow not care
-	about which mechanism caused the error (interp's recursion limit
-	or C-stack depth detector).
-
-2007-12-05  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* win/configure, win/tcl.m4 (LIBS_GUI): mingw needs -lole32
-	-loleaut32 but not msvc for Tk's [send]. [Bug 1844749]
-
-2007-12-05  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclCmdIL.c (Tcl_LsearchObjCmd): Prevent shimmering crash
-	when -exact and -integer/-real are mixed. [Bug 1844789]
-
-2007-12-03  Donal K. Fellows  <dkf@users.sf.net>
-
-	* unix/tclUnixChan.c (CreateSocketAddress): Add extra #ifdef-fery to
-	make code compile on BSD 5. [Bug 1618235, again]
-
-2007-12-03  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl:	Bump tcltest to version 2.3.0 so that
-	* library/tcltest/pkgIndex.tcl: we release a stable tcltest with a
-	* unix/Makefile.in:	stable Tcl.
-	* win/Makefile.in:
-
-2007-12-03  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* win/configure, win/tcl.m4 (LIBS_GUI): remove ole32.lib oleaut32.lib
-
-2007-12-03  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclCompCmds.c (TclCompileSwitchCmd): Adjusted the [switch]
-	* generic/tclCmdMZ.c (Tcl_SwitchObjCmd):       command so that when
-	passed two arguments, no check for options are performed. This is OK
-	since in the two-arg case, detecting an option would definitely lead
-	to a syntax error. [Patch 1836519]
-
-2007-11-29  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* win/makefile.vc: add ws2_32.lib to baselibs
-	* win/configure, win/tcl.m4: add ws2_32.lib / -lws2_32 to build.
-	* win/tclWinSock.c: remove dyn loading of winsock, assume that it is
-	always available now.
-
-2007-11-29  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclWinSock.c (InitializeHostName):	Correct error in
-	buffer length tracking. After gethostname() writes into a buffer,
-	convert only the written string to internal encoding, not the whole
-	buffer.
-
-2007-11-28  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclConfig.c:	Corrected failure of the [::foo::pkgconfig]
-	command to clean up registered configuration data when the query
-	command is deleted from the interp. [Bug 983501]
-
-	* generic/tclNamesp.c (Tcl_SetEnsembleMappingDict):	Added checks
-	that the dict value passed in is in the format required to make the
-	internals of ensembles work. [Bug 1436096]
-
-	* generic/tclIO.c:	Simplify test and improve accuracy of error
-	message in latest changes.
-
-2007-11-28  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* generic/tclIO.c: -eofchar must support no eofchar.
-
-2007-11-27  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclBasic.c: remove unneeded call in Tcl_CreateInterp, add
-	comments.
-
-2007-11-27  Don Porter	<dgp@users.sourceforge.net>
-
-	* win/tclWinSock.c:	Add mising encoding conversion of the [info
-	hostname] value from the system encoding to Tcl's internal encoding.
-
-	* doc/chan.n:		"Fix" the limitation on channel -eofchar
-	* doc/fconfigure.n:	values to single byte characters by
-	* generic/tclIO.c:	documenting it and making it fail loudly.
-	* tests/chan.test:	Thanks to Stuart Cassoff for contributing the
-				fix. [Bug 800753]
-
-2007-11-26  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclBasic.c:
-	* generic/tclInt.h:
-	* unix/tclUnixInit.c:
-	* unix/tclUnixThrd.c: Fix stack checking via workaround for bug in
-	glibc's pthread_attr_get_np, patch from [Bug 1815573]. Many thanks to
-	Sergei Golovan (aka Teo) for detecting the bug and helping diagnose
-	and develop the fix.
-
-2007-11-24  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCompCmds.c (TclCompileDictAppendCmd): Fix bug in [dict
-	append] compiler which caused strange stack corruption. [Bug 1837392]
-
-2007-11-23  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIORChan.c: Fixed a problem with reflected channels. 'chan
-	postevent' is defined to work only from within the interpreter
-	containing the handler command. Sensible, we want only handler
-	commands to use it. It identifies the channel by handle. The channel
-	moves to a different interpreter or thread. The interpreter containing
-	the handler command doesn't know the channel any longer. 'chan
-	postevent' fails, not finding the channel any longer. Uhm.
-
-	Fixed by creating a second per-interpreter channel table, just for
-	reflected channels, where each interpreter remembers for which
-	reflected channels it has the handler command. This info does not move
-	with the channel itself. The table is updated by 'chan create', and
-	used by 'chan postevent'.
-
-	* tests/ioCmd.test: Updated the testsuite.
-
-2007-11-23  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclVar.c (Tcl_ArrayObjCmd): handle the right data for
-	* tests/var.test (var-14.2):	      [array names $var -glob $ptn]
-
-2007-11-23  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclCmdMZ.c (String*Cmd, TclInitStringCmd): Rebuilt [string]
-	* generic/tclCompCmds.c (TclCompileString*Cmd): as an ensemble.
-
-2007-11-22  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclDictObj.c (Dict*Cmd,TclInitDictCmd): Rebuilt the [dict]
-	* generic/tclCompCmds.c (TclCompileDict*Cmd): command as an ensemble.
-
-2007-11-22  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd): Rewrote the [string] and
-	* generic/tclDictObj.c (Tcl_DictObjCmd): [dict] implementations to be
-	ready for conversion to ensembles.
-
-	* tests/string.test (string-12.22): Flag shimmering bug found in
-	[string range].
-
-2007-11-21  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCompCmds.c (TclCompileEnsemble): Rewrote the ensemble
-	compiler to remove many of the limitations. Can now compile scripts
-	that use unique prefixes of subcommands, and which have mappings of a
-	command to multiple words (provided the first is a compilable command
-	of course).
-
-2007-11-21  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclNamesp.c (TclMakeEnsemble): Factor out the code to set up
-	a core ensemble from a table of information about subcommands, ready
-	for reuse within the core.
-
-	* generic/various: Start to return more useful Error codes, currently
-	mainly on assorted lookup failures.
-
-2007-11-20  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclDictObj.c: Changed the underlying implementation of the
-	hash table used in dictionaries to additionally keep all entries in
-	the hash table in a linked list, which is only ever added to at the
-	end. This makes iteration over all entries in the dictionary in
-	key insertion order a trivial operation, and so cleans up a great deal
-	of complexity relating to dictionary representation and stability of
-	iteration order.
-
-	***POTENTIAL INCOMPATIBILITY***
-	For any code that depended on the (strange) old iteration order.
-
-	* generic/tclConfig.c (QueryConfigObjCmd): Correct usage of
-	Tcl_WrongNumArgs.
-
-2007-11-19  Don Porter	<dgp@users.sourceforge.net>
-
-	*** 8.5b3 TAGGED FOR RELEASE ***
-
-	* README:		Bump version number to 8.5b3.
-	* generic/tcl.h:
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-
-	* unix/configure:	autoconf (2.59)
-	* win/configure:
-
-	* changes:		Updated for 8.5b3 release.
-
-2007-11-19  Kevin Kenny	 <kennykb@users.sourceforge.net>
-
-	* library/tzdata/Africa/Cairo:
-	* library/tzdata/America/Campo_Grande:
-	* library/tzdata/America/Caracas:
-	* library/tzdata/America/Cuiaba:
-	* library/tzdata/America/Havana:
-	* library/tzdata/America/Sao_Paulo:
-	* library/tzdata/Asia/Damascus:
-	* library/tzdata/Asia/Gaza:
-	* library/tzdata/Asia/Tehran:  Olson's tzdata2007i imported.
-
-2007-11-18  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclExecute.c (TclExecuteByteCode:INST_EXIST_*): Fix read
-	traces not firing on non-existent array elements. [Bug 1833522]
-
-2007-11-16  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclCmdIL.c (TclInitInfoCmd): Rename the implementation
-	commands for [info] to be something more "expected".
-
-	* generic/tclCompCmds.c (TclCompileInfoExistsCmd): Compiler for the
-	[info exists] subcommand.
-	(TclCompileEnsemble): Cleaned up version of ensemble compiler that was
-	in TclCompileInfoCmd, but which is now much more generally applicable.
-
-	* generic/tclInt.h (ENSEMBLE_COMPILE): Added flag to allow for cleaner
-	turning on and off of ensemble bytecode compilation.
-
-	* generic/tclCompile.c (TclCompileScript): Add the cmdPtr to the list
-	of arguments passed to command compilers.
-
-2007-11-15  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/regc_nfa.c:	Fixed infinite loop in the regexp compiler.
-	[Bug 1810038]
-
-	* generic/regc_nfa.c:	Corrected looping logic in fixempties() to
-	avoid wasting time walking a list of dead states. [Bug 1832612]
-
-2007-11-15  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclNamesp.c (NamespaceEnsembleCmd): Must pass a non-NULL
-	interp to Tcl_SetEnsemble* functions.
-
-	* doc/re_syntax.n: Try to make this easier to read. It's still a very
-	difficult manual page!
-
-	* unix/tcl.m4 (SC_CONFIG_CFLAGS): Allow people to turn off the -rpath
-	option to their linker if they so desire. This is a configuration only
-	recommended for (some) vendors. Relates to [Patch 1231022].
-
-2007-11-15  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* win/tclWin32Dll.c: Prefer UINT_PTR to DWORD_PTR when casting
-	pointers to integer types for greater portability. [Bug 1831253]
-
-2007-11-15  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Tcl.xcodeproj/project.pbxproj: add new chanio.test.
-	* macosx/Tcl.xcode/project.pbxproj:
-
-2007-11-14  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclCompile.c (TclCompileScript): Ensure that we get our
-	count in our INST_START_CMD calls right, even when there's a failure
-	to compile a command directly.
-
-	* generic/tclNamesp.c (Tcl_SetEnsembleSubcommandList)
-	(Tcl_SetEnsembleMappingDict):		Special code to make sure that
-	* generic/tclCmdIL.c (TclInitInfoCmd):	[info exists] is compiled
-	right while not allowing changes to the ensemble to cause havok.
-
-	* generic/tclCompCmds.c (TclCompileInfoCmd): Simple compiler for the
-	[info] command that only handles [info exists].
-
-	* generic/tclExecute.c (TclExecuteByteCode:INST_EXIST_*): New
-	instructions to allow the testing of whether a variable exists.
-
-2007-11-14  Andreas Kupries  <andreask@activestate.com>
-
-	* tests/chanio.test: New file. This is essentially a duplicate of
-	'io.test', with all channel commands converted to their 'chan xxx'
-	notation.
-	* tests/io.test: Fixed typo in test description.
-
-2007-11-14  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/regc*.c: Eliminate multi-char collating element code
-	completely. Simplifies the code quite a bit. If people still want the
-	full code, it will remain on the 8.4 branch. [Bug 1831425]
-
-2007-11-13  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclCompCmds.c (TclCompileRegexpCmd): clean up comments, only
-	free dstring on OK from TclReToGlob.
-	(TclCompileSwitchCmd): simplify TclReToGlob usage.
-
-2007-11-14  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/regc*.c: #ifdef/comment out the code that deals with
-	multi-character collating elements, which have never been supported.
-	Cuts the memory consumption of the RE compiler. [Bug 1831425]
-
-2007-11-13  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCompCmds.c (TclCompileSwitchCmd, TclCompileRegexpCmd):
-	Extend [switch] compiler to handle regular expressions as long as
-	things are not too complex. Fix [regexp] compiler so that non-trivial
-	literal regexps get fed to INST_REGEXP.
-
-	* doc/mathop.n: Clarify definitions of some operations.
-
-2007-11-13  Miguel Sofer  <msofer@users.sf.net>
-
-	* unix/tclUnixInit.c: the TCL_NO_STACK_CHECK was being incorrectly
-	undefined here; this should be set (or not) in the compile options, it
-	is used elsewhere and needs to be consistent.
-
-2007-11-13  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* unix/tcl.m4:		Added autoconf goo to detect and make use of
-	* unix/configure.in:	getaddrinfo and friends.
-	* unix/configure:	(regenerated)
-
-2007-11-13  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* unix/tclUnixCompat.c (TclpGetHostByName): The six-argument form of
-	getaddressbyname_r() uses the fifth argument to indicate whether the
-	lookup succeeded or not on at least one platform. [Bug 1618235]
-
-2007-11-13  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/regcomp.c:	Convert optst() from expensive no-op to a
-	cheap no-op.
-
-2007-11-13  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* unix/tclUnixChan.c (CreateSocketAddress): Rewrote to use the
-	thread-safe version of gethostbyname() by forward-porting the code
-	used in 8.4, and added rudimentary support for getaddrinfo() (not
-	enabled by default, as no autoconf-ery written). Part of fix for [Bug
-	1618235].
-
-2007-11-12  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclGet.c (Tcl_Get, Tcl_GetInt): revert use of TclGet* macros
-	due to compiler warning. These cases won't save time either.
-
-	* generic/tclUtil.c (TclReToGlob): add more comments, set interp
-	result if specified on error.
-
-2007-11-12  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclBasic.c:		New macro TclResetResult, new iPtr
-	* generic/tclExecute.c:		flag bit INTERP_RESULT_UNCLEAN:
-	* generic/tclInt.h:		shortcut for Tcl_ResetResult for the
-	* generic/tclProc.c:		"normal" case: TCL_OK, no return
-	* generic/tclResult.c:		options, no errorCode nor errorInfo,
-	* generic/tclStubLib.c:		return at normal level. [Patch
-	* generic/tclUtil.c:		1830184]
-
-	THIS PATCH WAS REVERTED: initial (mis)measurements overstated the
-	perfomance wins, which turn out to be tiny. Not worth the
-	complication.
-
-2007-11-11  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclCompCmds.c, generic/tclCompile.c, generic/tclCompile.h:
-	* generic/tclExecute.c, generic/tclInt.decls, generic/tclIntDecls.h:
-	* generic/tclRegexp.c, generic/tclRegexp.h: Add INST_REGEXP and fully
-	* generic/tclStubInit.c, generic/tclUtil.c: compiled [regexp] for the
-	* tests/regexpComp.test:     [Bug 1830166]  simple cases. Also added
-	TclReToGlob function to convert RE to glob patterns and use these in
-	the possible cases.
-
-2007-11-11  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclResult.c (ResetObjResult): clarify the logic.
-
-	* generic/tclBasic.c:		Increased usage of macros to detect
-	* generic/tclBinary.c:		and take advantage of objTypes. Added
-	* generic/tclClock.c:		macros TclGet(Int|Long)FromObj,
-	* generic/tclCmdAH.c:		TclGetIntForIndexM & TclListObjLength,
-	* generic/tclCmdIL.c:		modified TclListObjGetElements.
-	* generic/tclCmdMZ.c:
-	* generic/tclCompCmds.c:	The TclGetInt* macros are only a
-	* generic/tclCompExpr.c:	shortcut on platforms where 'long' is
-	* generic/tclCompile.c:		'int'; it may be worthwhile to extend
-	* generic/tclDictObj.c:		their functionality to other cases.
-	* generic/tclExecute.c:
-	* generic/tclGet.c:		As this patch touches many files it
-	* generic/tclIO.c:		has been recorded as [Patch 1830038]
-	* generic/tclIOCmd.c:		in order to facilitate reviewing.
-	* generic/tclIOGT.c:
-	* generic/tclIndexObj.c:
-	* generic/tclInt.h:
-	* generic/tclInterp.c:
-	* generic/tclListObj.c:
-	* generic/tclLiteral.c:
-	* generic/tclNamesp.c:
-	* generic/tclObj.c:
-	* generic/tclParse.c:
-	* generic/tclProc.c:
-	* generic/tclRegexp.c:
-	* generic/tclResult.c:
-	* generic/tclScan.c:
-	* generic/tclStringObj.c:
-	* generic/tclUtil.c:
-	* generic/tclVar.c:
-
-2007-11-11  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tclUnixTime.c (TclpWideClicksToNanoseconds): Fix issues with
-	* generic/tclInt.h:				    int64_t overflow.
-
-	* generic/tclBasic.c:	Fix stack check failure case if stack grows up
-	* unix/tclUnixInit.c:	Simplify non-crosscompiled case.
-
-	* unix/configure:	autoconf-2.59
-	* unix/tclConfig.h.in:	autoheader-2.59
-
-2007-11-10  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c: Fast path for INST_LIST_INDEX when the index
-	is not a list.
-
-	* generic/tclBasic.c:
-	* unix/configure.in:
-	* unix/tclUnixInit.c: Detect stack grwoth direction at compile time,
-	only fall to runtime detection when crosscompiling.
-
-	* unix/configure: autoconf 2.61
-
-	* generic/tclBasic.c:
-	* generic/tclInt.h:
-	* tests/interp.test:
-	* unix/tclUnixInit.c:
-	* win/tclWin32Dll.c: Restore simpler behaviour for stack checking, not
-	adaptive to stack size changes after a thread is launched. Consensus
-	is that "nobody does that", and so it is not worth the cost. Improved
-	failure comments (mistachkin).
-
-2007-11-10  Kevin Kenny	 <kennykb@acm.org>
-
-	* win/tclWin32Dll.c: Rewrote the Windows stack checking algorithm to
-	use information from VirtualQuery to determine the bound of the stack.
-	This change fixes a bug where the guard page of the stack was never
-	restored after an overflow. It also eliminates a nasty piece of
-	assembly code for structured exception handling on mingw. It
-	introduces an assumption that the stack is a single memory arena
-	returned from VirtualAlloc, but the code in MSVCRT makes the same
-	assumption, so it should be fairly safe.
-
-2007-11-10  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclBasic.c:
-	* generic/tclInt.h:
-	* unix/tclUnixInit.c:
-	* unix/tclUnixPort.h:
-	* win/tclWin32Dll.c: Modify the stack checking algorithm to recheck in
-	case of failure. The working assumptions are now that (a) a thread's
-	stack is never moved, and (b) a thread's stack can grow but not
-	shrink. Port to windows - could be more efficient, but is already
-	cheaper than it was.
-
-2007-11-09  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclResult.c (ResetObjResult): new shortcut.
-
-	* generic/tclAsync.c:
-	* generic/tclBasic.c:
-	* generic/tclExecute.c:
-	* generic/tclInt.h:
-	* generic/tclUnixInit.c:
-	* generic/tclUnixPort.h: New fields in interp (ekeko!) to cache TSD
-	data that is accessed at each command invocation, access macros to
-	replace Tcl_AsyncReady and TclpCheckStackSpace by much faster variants
-	[Patch 1829248]
-
-2007-11-09  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclInt.decls, generic/tclIntDecls.h: Use unsigned char for
-	* generic/tclExecute.c, generic/tclUtil.c:     TclByteArrayMatch and
-	don't allow a nocase option. [Bug 1828296]
-	For INST_STR_MATCH, ignore pattern type for TclByteArrayMatch case.
-
-	* generic/tclBinary.c (Tcl_GetByteArrayFromObj): check type before
-	func jump (perf).
-
-2007-11-07  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclStubInit.c:		     Added TclByteArrayMatch
-	* generic/tclInt.decls:			     for efficient glob
-	* generic/tclIntDecls.h:		     matching of ByteArray
-	* generic/tclUtil.c (TclByteArrayMatch):     Tcl_Objs, used in
-	* generic/tclExecute.c (TclExecuteByteCode): INST_STR_MATCH. [Bug
-						     1827996]
-
-	* generic/tclIO.c (TclGetsObjBinary): Add an efficient binary path for
-					      [gets].
-	(DoWriteChars): Special case for 1-byte channel write.
-
-2007-11-06  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclEncoding.c: Version of the embedded iso8859-1 encoding
-	handler that is faster (functions to do the encoding know exactly what
-	they're doing instead of pulling it from a table, though the table
-	itself has to be retained for use by shift encodings that depend on
-	iso8859-1). [Patch 1826906], committing for dkf.
-
-2007-11-05  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclConfig.c (Tcl_RegisterConfig): Modified to not extend the
-	config database if the encoding provided by the user is not found
-	(venc == NULL). Scripts expecting the data will error out, however we
-	neither crash nor provide bogus information. See [Bug 983509] for more
-	discussion.
-
-	* unix/tclUnixChan.c (TtyGetOptionProc): Accepted [Patch 1823576]
-	provided by Stuart Cassof <stwo@users.sourceforge.net>. The patch adds
-	the necessary utf/external conversions to the handling of the
-	arguments of option -xchar which will allow the use of \0 and similar
-	characters.
-
-2007-11-03  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclTest.c (TestSetCmd2):
-	* generic/tclVar.c (TclObjLookupVarEx):
-	* tests/set.test (set-5.1): Fix error branch when array name looks
-	like array element (code not normally exercised).
-
-2007-11-01  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tools/tcltk-man2html.tcl (output-directive): Convert .DS/.DE pairs
-	into tables since that is now all that they are used for.
-
-	* doc/RegExp.3: Clarified documentation of RE flags. [Bug 1167840]
-
-	* doc/refchan.n: Adjust internal name to be consistent with the file
-	name for reduced user confusion. After comment by Dan Steffen.
-
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd, UniCharIsAscii): Remember, the
-	NUL character is in ASCII too. [Bug 1808258]
-
-	* doc/file.n: Clarified use of [file normalize]. [Bug 1185154]
-
-2007-10-30  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tcl.h:	Bump version number to 8.5b2.1 to distinguish
-	* library/init.tcl:	CVS development snapshots from the 8.5b2
-	* unix/configure.in:	release.
-	* unix/tcl.spec:
-	* win/configure.in:
-
-	* unix/configure:	autoconf (2.59)
-	* win/configure:
-
-2007-10-30  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/expr.n, doc/mathfunc.n: Improve documentation to try to make
-	clearer what is going on.
-
-	* doc/interp.n: Shorten the basic descriptive text for some interp
-	subcommands so Solaris nroff doesn't truncate them. [Bug 1822268]
-
-2007-10-30  Donal K. Fellows  <dkf@users.sf.net>
-
-	* tools/tcltk-man2html.tcl (output-widget-options): Enhance the HTML
-	generator so that it can produce multi-line option descriptions.
-
-2007-10-28  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclUtil.c (Tcl_ConcatObj): optimise for some of the
-	concatenees being empty objs. [Bug 1447328]
-
-2007-10-28  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclEncoding.c (TclInitEncodingSubsystem): Hard code the
-	iso8859-1 encoding, as it's needed for more than just text (especially
-	binary encodings...) Note that other encodings rely on the encoding
-	being a table encoding (!) so we can't use more efficient encoding
-	mapping functions.
-
-2007-10-27  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/regc_lex.c (lexescape): Close off one of the problems
-	mentioned in [Bug 1810264].
-
-2007-10-27  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclNamesp.c (Tcl_FindCommand): insure that FQ command names
-	are searched from the global namespace, ie, bypassing resolvers of the
-	current namespace. [Bug 1114355]
-
-	* doc/apply.n: fixed example [Bug 1811791]
-	* doc/namespace.n: improved example [Bug 1788984]
-	* doc/AddErrInfo.3: typo [Bug 1715087]
-	* doc/CrtMathFnc.3: fixed Tcl_ListMathFuncs entry [Bug 1672219]
-
-	* generic/tclCompile.h:
-	* generic/tclInt.h: moved declaration of TclSetCmdNameObj from
-	tclCompile.h to tclInt.h, reverting linker [Bug 1821159] caused by
-	commit of 2007-10-11 (both I and gcc missed one dep).
-
-	* generic/tclVar.c: try to preserve Tcl_Objs when doing variable
-	lookups by name, partially addressing [Bug 1793601].
-
-2007-10-27  Donal K. Fellows  <dkf@users.sf.net>
-
-	* tools/tcltk-man2html.tcl (make-man-pages, htmlize-text)
-	(process-text): Make the man->HTML scraper work better.
-
-2007-10-26  Don Porter	<dgp@users.sourceforge.net>
-
-	*** 8.5b2 TAGGED FOR RELEASE ***
-
-	* changes:		Updated for 8.5b2 release.
-
-	* doc/*.1:		Revert doc changes that broke
-	* doc/*.3:		`make html` so we can get the release
-	* doc/*.n:		out the door.
-
-	* README:		Bump version number to 8.5b2.
-	* generic/tcl.h:
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-
-	* unix/configure:	autoconf (2.59)
-	* win/configure:
-
-2007-10-26  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tools/man2help2.tcl, tools/man2tcl.c: Made some of the tooling code
-	to do man->other formats work better with current manpage set. Long
-	way still to go.
-
-2007-10-25  Zoran Vasiljevic <vasiljevic@users.sourceforge.net>
-
-	* generic/tclThread.c: Added TclpMasterLock/Unlock arround calls to
-	ForgetSyncObject in Tcl_MutexFinalize and Tcl_ConditionFinalize to
-	prevent from garbling the internal lists that track sync objects. [Bug
-	1726873]
-
-2007-10-24  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tools/man2html2.tcl (macro): Added support for converting the new
-	macros into HTML.
-
-	* doc/man.macros (QW,PQ,QR,MT): New macros that hide the ugly mess
-	needed to get proper GOOBE quoting in the manual pages.
-	* doc/*.n, doc/*.3, doc/*.1: Lots of changes to take advantage of the
-	new macros.
-
-2007-10-20  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCompile.c:	  Fix comments.
-	* generic/tclExecute.c:
-
-2007-10-18  David Gravereaux <davygrvy@pobox.com>
-
-	* tools/mkdepend.tcl: sort the dep list for a more humanly readable
-	output.
-
-2007-10-18  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclResult.c (TclMergeReturnOptions):	Make sure any -code
-	values get pulled out of the dictionary, even if they are integer
-	valued.
-
-	* generic/tclCompCmds.c (TclCompileReturnCmd):	Added code to more
-	optimally compile [return -level 0 $x] to "push $x". [RFE 1794073]
-
-	* compat/tmpnam.c (removed):	The routine tmpnam() is no longer
-	* unix/Makefile.in:	called by Tcl source code. Remove autogoo the
-	* unix/configure.in:	supplied a replacement version on systems
-	* win/tcl.dsp:		where the routine was not available. [RFE
-	1811848]
-
-	* unix/configure:	autoconf-2.59
-
-	* generic/tcl.h:	Remove TCL_LL_MODIFIER_SIZE. [RFE 1811837]
-
-2007-10-17  David Gravereaux <davygrvy@pobox.com>
-
-	* tools/mkdepend.tcl:	Improved defense from malformed object list
-	infile.
-
-2007-10-17  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* tools/man2html2.tcl: Convert .DS/.DE into HTML tables, not
-	preformatted text.
-
-2007-10-17  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclCompExpr.c: Moved a misplaced declaration that blocked
-				 compilation on VC++.
-	* generic/tclExecute.c: Silenced several VC++ compiler warnings about
-				converting 'long' to 'unsigned short'.
-
-2007-10-16  David Gravereaux <davygrvy@pobox.com>
-
-	* win/makefile.vc: removed old dependency cruft that is no longer
-	needed.
-
-2007-10-15  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclIOCmd.c:	Revise [open] so that it interprets leading
-	zero strings passed as the "permissions" argument as octal numbers,
-	even if Tcl itself no longer parses integers in that way.
-
-	* unix/tclUnixFCmd.c:	Revise the "-permissions" [file attribute] so
-	that it interprets leading zero strings as octal numbers, even if Tcl
-	itself no longer parses integers in that way.
-
-	* generic/tclCompExpr.c:	Corrections to code that produces
-	* generic/tclUtil.c:		extended "bad octal" error messages.
-
-	* tests/cmdAH.test:	Test revisions so that tests pass whether or
-	* tests/cmdIL.test:	not Tcl parses leading zero strings as octal.
-	* tests/compExpr-old.test:
-	* tests/compExpr.test:
-	* tests/compile.test:
-	* tests/expr-old.test:
-	* tests/expr.test:
-	* tests/incr.test:
-	* tests/io.test:
-	* tests/lindex.test:
-	* tests/link.test:
-	* tests/mathop.test:
-	* tests/parseExpr.test:
-	* tests/set.test:
-	* tests/string.test:
-	* tests/stringComp.test:
-
-2007-10-15  David Gravereaux <davygrvy@pobox.com>
-
-	* tools/mkdepend.tcl:	Produces usable output. Include path problem
-	* win/makefile.vc:	fixed. Never fight city hall when it comes to
-	levels of quoting issues.
-
-2007-10-15  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclParse.c (Tcl_ParseBraces): fix for possible read after
-	the end of buffer. [Bug 1813528] (Joe Mistachkin)
-
-2007-10-14  David Gravereaux <davygrvy@pobox.com>
-
-	* tools/mkdepend.tcl (new):  Initial stab at generating automatic
-	* win/makefile.vc:	     dependencies.
-
-2007-10-12  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* win/makefile.vc:  Mine all version information from headers.
-	* win/rules.vc:	    Sync tcl and tk and bring extension versions
-	* win/nmakehlp.c:   closer together. Try and avoid using tclsh to do
-			    substitutions as we may cross compile.
-	* win/coffbase.txt: Added offsets for snack dlls.
-
-2007-10-11  David Gravereaux <davygrvy@pobox.com>
-
-	* win/makefile.vc:  Fixed my bad spelling mistakes from years back.
-	Dedependency, duh!  Rather funny.
-
-2007-10-11  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c:	Correct [string is (wide)integer] failure
-	* tests/string.test:	to report correct failindex values for
-	non-decimal integer strings. [Bug 1805887]
-
-	* compat/strtoll.c (removed):	The routines strtoll() and strtoull()
-	* compat/strtoull.c (removed):	are no longer called by the Tcl source
-	* generic/tcl.h:	code. (Their functionality has been replaced
-	* unix/Makefile.in:	by TclParseNumber().) Remove outdated comments
-	* unix/configure.in:	and mountains of configury autogoo that
-	* unix/tclUnixPort.h:	allegedly support the mythical systems where
-	* win/Makefile.in:	these routines might not have been available.
-	* win/makefile.bc:
-	* win/makefile.vc:
-	* win/tclWinPort.h:
-
-	* unix/configure:	autoconf-2.59
-
-2007-10-11  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclObj.c: remove superfluous #include of tclCompile.h
-
-2007-10-08  George Peter Staplin <georgeps@xmission.com>
-
-	* doc/Hash.3: Correct the valid usage of the flags member for the
-	Tcl_HashKeyType. It should be 0 or more of the flags mentioned.
-
-2007-10-02  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tcl.h (Tcl_DecrRefCount): Update change from 2006-05-29 to
-	make macro more warning-robust in unbraced if code.
-
-2007-10-02  Don Porter	<dgp@users.sourceforge.net>
-
-	[core-stabilizer-branch]
-
-	* README:		Bump version number to 8.5.0
-	* generic/tcl.h:
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-
-	* unix/configure:	autoconf (2.59)
-	* win/configure:
-
-2007-10-02  Andreas Kupries  <andreask@activestate.com>
-
-	* library/tclIndex: Added 'tcl::tm::path' to the tclIndex. This fixes
-	[Bug 1806422] reported by Don Porter.
-
-2007-09-25  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclProc.c (Tcl_DisassembleObjCmd): Define a command,
-	::tcl::unsupported::disassemble, which can disassemble procedures,
-	lambdas and general scripts.
-	* generic/tclCompile.c (TclDisassembleByteCodeObj): Split apart the
-	code to print disassemblies of bytecode so that there is reusable code
-	that spits it out in a Tcl_Obj and then that code is used when doing
-	tracing.
-
-2007-09-20  Don Porter	<dgp@users.sourceforge.net>
-
-	*** 8.5b1 TAGGED FOR RELEASE ***
-
-	* changes: updates for 8.5b1 release.
-
-2007-09-19  Don Porter	<dgp@users.sourceforge.net>
-
-	* README:		Bump version number to 8.5b1
-	* generic/tcl.h:	Merge from core-stabilizer-branch.
-	* library/init.tcl:	Stabilizing toward 8.5b1 release now done on
-	* tools/tcl.wse.in:	the HEAD. core-stabilizer-branch is now
-	* unix/configure.in:	suspended.
-	* unix/tcl.spec:
-	* win/configure.in:
-
-2007-09-19  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* generic/tclStubLib.: Replaced isdigit with internal implementation.
-
-2007-09-18  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclStubLib.c:	Remove C library calls from Tcl_InitStubs() so
-	* win/makefile.vc:	that we don't need the C library linked in to
-	libtclStub.
-
-2007-09-17  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* win/makefile.vc: Add crt flags for tclStubLib now it uses C-library
-			   functions.
-
-2007-09-17  Joe English	 <jenglish@users.sourceforge.net>
-
-	* tcl.m4: use '${CC} -shared' instead of 'ld -Bshareable' to build
-	shared libraries on current NetBSDs. [Bug 1749251]
-	* unix/configure: regenerated (autoconf-2.59).
-
-2007-09-17  Don Porter	<dgp@users.sourceforge.net>
-
-	* unix/Makefile.in:	Update `make dist` so that tclDTrace.d is
-	included in the source code distribution.
-
-	* generic/tcl.h:	Revised Tcl_InitStubs() to restore Tcl 8.4
-	* generic/tclPkg.c:	source compatibility with callers of
-	* generic/tclStubLib.c:	Tcl_InitStubs(interp, TCL_VERSION, 1). [Bug
-	1578344]
-
-2007-09-17  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclTrace.c (Tcl_TraceObjCmd, TraceExecutionObjCmd)
-	(TraceCommandObjCmd, TraceVariableObjCmd):   Generate literal values
-	* generic/tclNamesp.c (NamespaceCodeCmd):    more efficiently using
-	* generic/tclFCmd.c (CopyRenameOneFile):     TclNewLiteralStringObj
-	* generic/tclEvent.c (TclSetBgErrorHandler): macro.
-
-2007-09-15  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tcl.m4:	replace all direct references to compiler by ${CC} to
-			enable CC overriding at configure & make time; run
-			check for visibility "hidden" with all compilers;
-			quoting fixes from TEA tcl.m4.
-	(SunOS-5.1x):	replace direct use of '/usr/ccs/bin/ld' in SHLIB_LD by
-			'cc' compiler driver.
-	* unix/configure: autoconf-2.59
-
-2007-09-14  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclBasic.c (Tcl_CreateObjCommand): Only invalidate along the
-	namespace path once; that is enough. [Bug 1519940]
-
-2007-09-14  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclDTrace.d (new file): Add DTrace provider for Tcl; allows
-	* generic/tclCompile.h:		  tracing of proc and command entry &
-	* generic/tclBasic.c:		  return, bytecode execution, object
-	* generic/tclExecute.c:		  allocation and more; with
-	* generic/tclInt.h:		  essentially zero cost when tracing
-	* generic/tclObj.c:		  is inactive; enable with
-	* generic/tclProc.c:		  --enable-dtrace configure arg
-	* unix/Makefile.in:		  (disabled by default, will only
-	* unix/configure.in:		  enable if DTrace is present). [Patch
-	1793984]
-
-	* macosx/GNUmakefile:		  Enable DTrace support.
-	* macosx/Tcl-Common.xcconfig:
-	* macosx/Tcl.xcodeproj/project.pbxproj:
-
-	* generic/tclCmdIL.c:	Factor out core of InfoFrameCmd() into
-				internal TclInfoFrame() for use by DTrace
-				probes.
-
-	* unix/configure: autoconf-2.59
-	* unix/tclConfig.h.in: autoheader-2.59
-
-2007-09-12  Don Porter	<dgp@users.sourceforge.net>
-
-	* unix/Makefile.in:	Perform missing updates of the tcltest Tcl
-	* win/Makefile.in:	Module installed filename that should have
-	been part of the bump to tcltest 2.3b1. Thanks Larry Virden.
-
-2007-09-12  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* win/makefile.vc, win/rules.vc, win/nmakehlp.c: Use nmakehlp to
-	substitute values for tclConfig.sh (helps cross-compiling).
-
-2007-09-11  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl:	Accept underscores and colons in
-	* library/tcltest/pkgIndex.tcl: constraint names. Properly handle
-	constraint expressions that return non-numeric boolean results like
-	"false". Bump to tcltest 2.3b1. [Bug 1772989; RFE 1071322]
-	* tests/info.test:	Disable fragile tests.
-
-	* doc/package.n:	Restored the functioning of [package require
-	* generic/tclPkg.c:	-exact] to be compatible with Tcl 8.4. [Bug
-	* tests/pkg.test:	1578344]
-
-2007-09-11  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCompCmds.c (TclCompileDictCmd-update):
-	* generic/tclCompile.c (tclInstructionTable):
-	* generic/tclExecute.c (INST_DICT_UPDATE_END): fix stack management in
-	compiled [dict update]. [Bug 1786481]
-
-	***POTENTIAL INCOMPATIBILITY***
-	Scripts that were precompiled on earlier versions of 8.5 and use [dict
-	update] will crash. Workaround: recompile.
-
-2007-09-11  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclExecute.c: Corrected an off-by-one error in the setting
-	of MaxBaseWide for certain powers. [Bug 1767293 - problem reported in
-	comments when bug was reopened]
-
-2007-09-10  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclLink.c (Tcl_UpdateLinkedVar): guard against var being
-	unlinked. [Bug 1740631] (maros)
-
-2007-09-10  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCompile.c: fix tclInstructionTable entry for
-	dictUpdateEnd
-
-	* generic/tclExecute.c: remove unneeded setting of 'cleanup' variable
-	before jumping to checkForCatch.
-
-2007-09-10  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/package.n:	Restored the document parallel syntax of the
-	* generic/tclPkg.c:	[package present] and [package require]
-	* tests/pkg.test:	commands. [Bug 1723675]
-
-2007-09-09  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclInt.h:	Removed the "nsName" Tcl_ObjType from the
-	* generic/tclNamesp.c:	registered set. Revised the management of the
-	* generic/tclObj.c:	intrep of that Tcl_ObjType. Revised the
-	* tests/obj.test:	TclGetNamespaceFromObj() routine to return
-	TCL_ERROR and write a consistent error message when a namespace is not
-	found. [Bug 1588842. Patch 1686862]
-
-	***POTENTIAL INCOMPATIBILITY***
-	For callers of Tcl_GetObjType() on the name "nsName".
-
-	* generic/tclExecute.c: Update TclGetNamespaceFromObj() callers.
-	* generic/tclProc.c:
-
-	* tests/apply.test:		Updated tests to expect new consistent
-	* tests/namespace-old.test:	error message when a namespace is not
-	* tests/namespace.test:		found.
-	* tests/upvar.test:
-
-	* generic/tclCompCmds.c:	Use the new INST_REVERSE instruction
-	* tests/mathop.test:	to correct the compiled versions of math
-	operator commands. [Bug 1724437]
-
-	* generic/tclCompile.c: New bytecode instruction INST_REVERSE to
-	* generic/tclCompile.h: reverse the order of N items at the top of
-	* generic/tclExecute.c: stack.
-
-	* generic/tclCompCmds.c (TclCompilePowOpCmd):	Make a separate
-	routine to compile ** to account for its different associativity.
-
-2007-09-08  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclVar.c (Tcl_SetVar2, TclPtrSetVar): [Bug 1710710] fixed
-	correctly, reverted fix of 2007-05-01.
-
-2007-09-08  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclDictObj.c (DictUpdateCmd, DictWithCmd): Plug a hole that
-	* generic/tclExecute.c (TEBC,INST_DICT_UPDATE_END): allowed a careful
-	* tests/dict.test (dict-21.16,21.17,22.11): attacker to craft a dict
-	containing a recursive link to itself, violating one of Tcl's
-	fundamental datatype assumptions and causing a stack crash when the
-	dict was converted to a string. [Bug 1786481]
-
-2007-09-07  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclEvent.c ([::tcl::Bgerror]):	Corrections to Tcl's
-	* tests/event.test:	default [interp bgerror] handler so that when
-	it falls back to a hidden [bgerror] in a safe interp, it gets the
-	right error context data. [Bug 1790274]
-
-2007-09-07  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclProc.c (TclInitCompiledLocals): the refCount of resolved
-	variables was being managed without checking if they were Var or
-	VarInHash: itcl [Bug 1790184]
-
-2007-09-06  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclResult.c (Tcl_GetReturnOptions):	Take care that a
-	* tests/init.test:	non-TCL_ERROR code doesn't cause existing
-	-errorinfo, -errorcode, and -errorline entries to be omitted.
-	* generic/tclEvent.c:	With -errorInfo no longer lost, generate more
-	complete ::errorInfo when calling [bgerror] after a non-TCL_ERROR
-	background exception.
-
-2007-09-06  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclInterp.c (Tcl_Init):	Removed constraint on ability
-	to define a custom [tclInit] before calling Tcl_Init(). Until now the
-	custom command had to be a proc. Now it can be any command.
-
-	* generic/tclInt.decls: New internal routine TclBackgroundException()
-	* generic/tclEvent.c:	that for the first time permits non-TCL_ERROR
-	exceptions to trigger [interp bgerror] handling. Closes a gap in TIP
-	221. When falling back to [bgerror] (which is designed only to handle
-	TCL_ERROR), convert exceptions into errors complaining about the
-	exception.
-
-	* generic/tclInterp.c:	Convert Tcl_BackgroundError() callers to call
-	* generic/tclIO.c:	TclBackgroundException().
-	* generic/tclIOCmd.c:
-	* generic/tclTimer.c:
-
-	* generic/tclIntDecls.h:	make genstubs
-	* generic/tclStubInit.c:
-
-2007-09-06  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Tcl.xcode/project.pbxproj: discontinue unmaintained support
-	* macosx/Tcl.xcode/default.pbxuser: for Xcode 1.5; replace by Xcode2
-	project for use on Tiger (with Tcl.xcodeproj to be used on Leopard).
-
-	* macosx/Tcl.xcodeproj/project.pbxproj: updates for Xcode 2.5 and 3.0.
-	* macosx/Tcl.xcodeproj/default.pbxuser:
-	* macosx/Tcl.xcode/project.pbxproj:
-	* macosx/Tcl.xcode/default.pbxuser:
-	* macosx/Tcl-Common.xcconfig:
-
-	* macosx/README: document project changes.
-
-2007-09-05  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Removed support for the unmaintained
-	* generic/tclExecute.c: -DTCL_GENERIC_ONLY configuration. [Bug
-	* unix/Makefile.in:	1264623]
-
-2007-09-04  Don Porter	<dgp@users.sourceforge.net>
-
-	* unix/Makefile.in:	It's unreliable to count on the release
-	manager to remember to `make genstubs` before `make dist`. Let the
-	Makefile remember the dependency for us.
-
-	* unix/Makefile.in:	Corrections to `make dist` dependencies to be
-	sure that macosx/configure gets generated whenever it does not exist.
-
-2007-09-03  Kevin B, Kenny  <kennykb@acm.org>
-
-	* library/tzdata/Africa/Cairo:
-	* library/tzdata/America/Grand_Turk:
-	* library/tzdata/America/Port-au-Prince:
-	* library/tzdata/America/Indiana/Petersburg:
-	* library/tzdata/America/Indiana/Tell_City:
-	* library/tzdata/America/Indiana/Vincennes:
-	* library/tzdata/Antarctica/McMurdo:
-	* library/tzdata/Australia/Adelaide:
-	* library/tzdata/Australia/Broken_Hill:
-	* library/tzdata/Australia/Currie:
-	* library/tzdata/Australia/Hobart:
-	* library/tzdata/Australia/Lord_Howe:
-	* library/tzdata/Australia/Melbourne:
-	* library/tzdata/Australia/Sydney:
-	* library/tzdata/Pacific/Auckland:
-	* library/tzdata/Pacific/Chatham: Olson's tzdata2007g.
-
-	* generic/tclListObj.c (TclLindexFlat):
-	* tests/lindex.test (lindex-17.[01]):	Added code to detect the error
-	when a script does [lindex {} end foo]; an overaggressive optimisation
-	caused this call to return an empty object rather than an error.
-
-2007-09-03  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclObj.c (TclInitObjSubsystem): restore registration of the
-	"wideInt" Tcl_ObjType for compatibility with 8.4 extensions that
-	access the tclWideIntType Tcl_ObjType; add setFromAnyProc for
-	tclWideIntType.
-
-2007-09-02  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/lsearch.n: Added note that order of results with the -all option
-	is that of the input list. It always was, but this makes it crystal.
-
-2007-08-30  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompile.c: Added fflush() calls following all callers of
-	* generic/tclExecute.c: TclPrintByteCodeObj() so that tcl_traceCompile
-	output is less likely to get mangled when writes to stdout interleave
-	with other code.
-
-2007-08-28  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Use a table lookup in ParseLexeme() to
-	determine lexemes with single-byte representations.
-
-	* generic/tclBasic.c:	Used unions to better clarify overloading of
-	* generic/tclCompExpr.c:	the fields of the OpCmdInfo and
-	* generic/tclCompile.h:		TclOpCmdClientData structs.
-
-2007-08-27  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Call TclCompileSyntaxError() when
-	expression syntax errors are found when compiling expressions. With
-	this in place, convert TclCompileExpr to return void, since there's no
-	longer any need to report TCL_ERROR.
-	* generic/tclCompile.c: Update callers.
-	* generic/tclExecute.c:
-
-	* generic/tclCompCmds.c:	New routine TclCompileSyntaxError()
-	* generic/tclCompile.h: to directly compile bytecodes that report a
-	* generic/tclCompile.c: syntax error, rather than (ab)use a call to
-	TclCompileReturnCmd. Also, undo the most recent commit that papered
-	over some issues with that (ab)use. New routine produces a new opcode
-	INST_SYNTAX, which is a minor variation of INST_RETURN_IMM. Also a bit
-	of constification.
-
-	* generic/tclCompile.c: Move the deallocation of local LiteralTable
-	* generic/tclCompExpr.c:	entries into TclFreeCompileEnv().
-	* generic/tclExecute.c: Update callers.
-
-	* generic/tclCompExpr.c:	Force numeric and boolean literals in
-	expressions to register with their intreps intact, even if that means
-	overwriting existing intreps in already registered literals.
-
-2007-08-25  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclExecute.c (TclExecuteByteCode): Added code to handle
-	* tests/expr.test (expr-23.48-53)	     integer exponentiation
-	that results in 32- and 64-bit integer results, avoiding calls to wide
-	integer exponentiation routines in this common case. [Bug 1767293]
-
-	* library/clock.tcl (ParseClockScanFormat): Modified code to allow
-	* tests/clock.test (clock-60.*):	    case-insensitive matching
-	of time zone and month names. [Bug 1781282]
-
-2007-08-24  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Register literals found in expressions
-	* tests/compExpr.test:	to restore literal sharing. Preserve numeric
-	intreps when literals are created for the first time. Correct memleak
-	in ExecConstantExprTree() and add test for the leak.
-
-2007-08-24  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCompile.c: replaced copy loop that tripped some compilers
-	with memmove. [Bug 1780870]
-
-2007-08-23  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/init.tcl ([auto_load_index]): Delete stray "]" that created
-	an expr syntax error (masked by a [catch]).
-
-	* generic/tclCompCmds.c (TclCompileReturnCmd):	Added crash protection
-	to handle callers other than TclCompileScript() failing to meet the
-	initialization assumptions of the TIP 280 code in CompileWord().
-
-	* generic/tclCompExpr.c:	Suppress the attempt to convert to
-	numeric when pre-compiling a constant expresion indicates an error.
-
-2007-08-22  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c (TEBC): disable the new shortcut to frequent
-	INSTs for debug builds. REVERTED (collision with alternative fix)
-
-2007-08-21  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclMain.c:	Corrected the logic of dropping the last
-	* tests/main.test:	newline from an interactively typed command.
-	[Bug 1775878]
-
-2007-08-21  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* tests/thread.test: thread-4.4: clear ::errorInfo in the thread as a
-	message is left here from init.tcl on windows due to no tcl_pkgPath.
-
-2007-08-20  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c (INST_SUB): fix usage of the new macro for
-	overflow detection in sums, adapt to subtraction. Lengthy comment
-	added.
-
-2007-08-19  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclExecute.c (Overflowing, TclIncrObj, TclExecuteByteCode):
-	Encapsulate Miguel's last change in a more mnemonic macro.
-
-2007-08-19  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c: changed the check for overflow in sums,
-	reducing objsize, number of branches and cache misses (according to
-	cachegrind). Non-overflow for s=a+b:
-	previous
-	  ((a >= 0 || b >= 0 || s < 0) && (s >= 0 || b < 0 || a < 0))
-	now
-	  (((a^s) >= 0) || ((a^b) < 0))
-	This expresses: "a and s have the same sign or else a and b have
-	different sign".
-
-2007-08-19  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/interp.n (RESOURCE LIMITS): Added text to better explain why
-	time limits are described using absolute times. [Bug 1752148]
-
-2007-08-16  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclVar.c: improved localVarNameType caching to leverage
-	the new availability of Tcl_Obj in variable names, avoiding string
-	comparisons to verify that the cached value is usable.
-
-	* generic/tclExecute.c: check the two most frequent instructions
-	before the switch. Reduces both runtime and obj size a tiny bit.
-
-2007-08-16  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Added a "constant" field to the OpNode
-	struct (again "free" due to alignment requirements) to mark those
-	subexpressions that are completely known at compile time. Enhanced
-	CompileExprTree() and its callers to precompute these constant
-	subexpressions at compile time. This resolves the issue raised in [Bug
-	1564517].
-
-2007-08-15  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclIOUtil.c (TclGetOpenModeEx): Only set the O_APPEND flag
-	* tests/ioUtil.test (ioUtil-4.1):	  on a channel for the 'a'
-	mode and not for 'a+'. [Bug 1773127]
-
-2007-08-14  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c (INST_INVOKE*): peephole opt, do not get the
-	interp's result if it will be pushed/popped.
-
-2007-08-14  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Use fully qualified variable names for
-	* tests/thread.test:	::errorInfo and ::errorCode so that string
-	* tests/trace.test:	reported to variable traces are fully
-	qualified in agreement with Tcl 8.4 operations.
-
-2007-08-14  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tclLoadDyld.c: use dlfcn API on Mac OS X 10.4 and later; fix
-	issues with loading from memory on intel and 64bit; add debug messages
-
-	* tests/load.test: add test load-10.1 for loading from vfs.
-
-	* unix/dltest/pkga.c:		whitespace & comment cleanup, remove
-	* unix/dltest/pkgb.c:		unused pkgf.c.
-	* unix/dltest/pkgc.c:
-	* unix/dltest/pkge.c:
-	* unix/dltest/pkgf.c (removed):
-	* unix/dltest/pkgua.c:
-	* macosx/Tcl.xcodeproj/project.pbxproj:
-
-2007-08-13  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c: Provide DECACHE/CACHE protection to the
-	* tests/trace.test:	Tcl_LogCommandInfo() call. [Bug 1773040]
-
-2007-08-12  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCmdMZ.c (Tcl_SplitObjCmd): use TclNewStringObj macro
-	instead of calling the function.
-
-	* generic/tcl_Obj.c (TclAllocateFreeObjects): remove unneeded memset
-	to 0 of all allocated objects.
-
-2007-08-10  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclInt.h: remove redundant ops in TclNewStringObj macro.
-
-2007-08-10  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclInt.h: fix the TclSetVarNamespaceVar macro, was causing a
-	leak.
-
-2007-08-10  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Revise CompileExprTree() to use the
-	OpNode mark field scheme of tree traversal. This eliminates the need
-	to use magic values in the left and right fields for that purpose.
-	Also stop abusing the left field within ParseExpr() to store the
-	number of arguments in a parsed function call. CompileExprTree() now
-	determines that for itself at compile time. Then reorder code to
-	eliminate duplication.
-
-2007-08-09  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclProc.c (TclCreateProc): better comments on the required
-	varflag values when loading precompiled procs.
-
-	* generic/tclExecute.c (INST_STORE_ARRAY):
-	* tests/trace.test (trace-2.6): whole array write traces on compiled
-	local variables were not firing. [Bug 1770591]
-
-2007-08-08  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclProc.c (InitLocalCache): reference firstLocalPtr via
-	procPtr. codePtr->procPtr == NULL exposed by tbcload.
-
-2007-08-08  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c: Corrected failure to compile/link in the
-	-DNO_WIDE_TYPE configuration.
-
-	* generic/tclExecute.c: Corrected improper use of bignum arguments to
-	* tests/expr.test:	*SHIFT operations. [Bug 1770224]
-
-2007-08-07  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclInt.h: remove comments refering to VAR_SCALAR, as that
-	flag bit does not exist any longer.
-	* generic/tclProc.c (InitCompiledLocals): removed optimisation for
-	non-resolved case, as the function is never called in that case.
-	Renamed the function to InitResolvedLocals to calrify the point.
-
-	* generic/tclInt.decls:	  Exporting via stubs to help xotcl adapt to
-	* generic/tclInt.h:	  VarReform.
-	* generic/tclIntDecls.h:
-	* generic/tclStubInit.c:
-
-2007-08-07  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclEnv.c:	improve environ handling on Mac OS X (adapted
-	* unix/tclUnixPort.h:	from Apple changes in Darwin tcl-64).
-
-	* unix/Makefile.in:	add support for compile flags specific to
-				object files linked directly into executables.
-
-	* unix/configure.in (Darwin): only use -seg1addr flag when prebinding;
-	use -mdynamic-no-pic flag for object files linked directly into exes;
-	support overriding TCL_PACKAGE_PATH/TCL_MODULE_PATH in environment.
-
-	* unix/configure: autoconf-2.59
-
-2007-08-06  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/parseExpr.test: Update source file name of expr parser code.
-
-	* generic/tclCompExpr.c:	Added a "mark" field to the OpNode
-	struct, which is used to guide tree traversal. This field costs
-	nothing since alignement requirements used the memory already.
-	Rewrote ConvertTreeToTokens() to use the new field, which permitted
-	consolidation of utility routines CopyTokens() and
-	GenerateTokensForLiteral().
-
-2007-08-06  Kevin B. Kenny  <kennykb@users.sf.net>
-
-	* generic/tclGetDate.y: Added a cast to the definition of YYFREE to
-				silence compiler warnings.
-	* generic/tclDate.c:	Regenerated
-	* win/tclWinTest.c:	Added a cast to GetSecurityDescriptorDacl call
-				to silence compiler warnings.
-
-2007-08-04  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclInt.decls:	  Exporting via stubs to help itcl adapt to
-	* generic/tclInt.h:	  VarReform. Added localCache initialization
-	* generic/tclIntDecls.h:  to TclInitCompiledLocals (which only exists
-	* generic/tclProc.c:	  for itcl).
-	* generic/tclStubInit.c:
-	* generic/tclVar.c:
-
-2007-08-01  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* library/word.tcl: Rewrote for greater efficiency. [Bug 1764318]
-
-2007-08-01  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* generic/tclInt.h:	Added a TclOffset macro ala Tk_Offset to
-	* generic/tclVar.c:	abstract out 'offsetof' which may not be
-	* generic/tclExceute.c: defined (eg: msvc6).
-
-2007-08-01  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclVar.c (TclCleanupVar): fix [Bug 1765225], thx Larry
-	Virden.
-
-2007-07-31  Miguel Sofer  <msofer@users.sf.net>
-
-	* doc/Hash.3:
-	* generic/tclHash.c:
-	* generic/tclObj.c:
-	* generic/tclThreadStorage.c: (changes part of the patch below)
-	Stop Tcl_CreateHashVar from resetting hPtr->clientData to NULL after
-	calling the allocEntryProc for a custom table.
-
-	* generic/tcl.h:
-	* generic/tclBasic.c:
-	* generic/tclCmdIL.c:
-	* generic/tclCompCmds.c:
-	* generic/tclCompile.c:
-	* generic/tclCompile.h:
-	* generic/tclExecute.c:
-	* generic/tclHash.c:
-	* generic/tclInt.decls:
-	* generic/tclInt.h:
-	* generic/tclIntDecls.h:
-	* generic/tclLiteral.c:
-	* generic/tclNamesp.c:
-	* generic/tclObj.c:
-	* generic/tclProc.c:
-	* generic/tclThreadStorage.c:
-	* generic/tclTrace.c:
-	* generic/tclVar.c: VarReform [Patch 1750051]
-
-	*** POTENTIAL INCOMPATIBILITY *** (tclInt.h and tclCompile.h)
-	Extensions that access internals defined in tclInt.h and/or
-	tclCompile.h may lose both binary and source compatibility. The
-	relevant changes are:
-	1. 'struct Var' is completely changed, all acceses to its internals
-	   (either direct or via the TclSetVar* and TclIsVar* macros) will
-	   malfunction. Var flag values and semantics changed too.
-	2. 'struct Bytecode' has an additional field that has to be
-	   initialised to NULL
-	3. 'struct Namespace' is larger, as the varTable is now one pointer
-	   larger than a Tcl_HashTable. Direct access to its fields will
-	   malfunction.
-	4. 'struct CallFrame' grew one more field (the second such growth with
-	   respect to Tcl8.4).
-	5. API change for the functions TclFindCompiledLocal, TclDeleteVars
-	   and many internal functions in tclVar.c
-
-	Additionally, direct access to variable hash tables via the standard
-	Tcl_Hash* interface is to be considered as deprecated. It still works
-	in the present version, but will be broken by further specialisation
-	of these hash tables. This concerns especially the table of array
-	elements in an array, as well as the varTable field in the Namespace
-	struct.
-
-2007-07-31  Miguel Sofer  <msofer@users.sf.net>
-
-	* unix/configure.in: allow use of 'inline' in Tcl sources. [Patch
-	* win/configure.in:  1754128]
-	* win/makefile.vc:   Regen with autoconf 2.61
-
-2007-07-31  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* unix/tclUnixInit.c (TclpSetVariables): Use the thread-safe getpwuid
-	replacement to fill the tcl_platform(user) field as it is not subject
-	to spoofing. [Bug 681877]
-
-	* unix/tclUnixCompat.c: Simplify the #ifdef logic.
-
-	* unix/tclUnixChan.c (FileWatchProc): Fix test failures.
-
-2007-07-30  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* unix/tclUnixChan.c (SET_BITS, CLEAR_BITS): Added macros to make this
-	file clearer.
-
-2007-07-24  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclBasic.c (TEOvI, GetCommandSource):
-	* generic/tclExecute.c (TEBC, TclGetSrcInfoForCmd):
-	* generic/tclInt.h:
-	* generic/tclTrace.c (TclCheck(Interp|Execution)Traces):
-	Removed the need for TEBC to inspect the command before calling TEOvI,
-	leveraging the TIP 280 infrastructure. Moved the generation of a
-	correct nul-terminated command string away from the trace code, back
-	into TEOvI/GetCommandSource.
-
-2007-07-20  Andreas Kupries  <andreask@activestate.com>
-
-	* library/platform/platform.tcl: Fixed bug in 'platform::patterns'
-	* library/platform/pkgIndex.tcl: where identifiers not matching
-	* unix/Makefile.in: the special linux and solaris forms would not
-	* win/Makefile.in: get 'tcl' as an acceptable platform added to
-	* doc/platform.n: the result. Bumped package to version 1.0.3 and
-	* doc/platform_shell.n: updated documentation and Makefiles. Also
-	fixed bad version info in the documentation of platform::shell.
-
-2007-07-19  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclParse.c:	In contexts where interp and parsePtr->interp
-	might be different, be sure to use the latter for error reporting.
-	Also pulled the interp argument back out of ParseTokens() since we
-	already had a parsePtr->interp to work with.
-
-2007-07-18  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Removed unused arguments and variables
-
-2007-07-17  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c (ParseExpr):	While adding comments to
-	explain the operations of ParseExpr(), made significant revisions to
-	the code so it would be easier to explain, and in the process made the
-	code simpler and clearer as well.
-
-2007-07-15  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	More commentary.
-	* tests/parseExpr.test:		Several tests of syntax error messages
-	to check that when expression substrings are truncated they leave
-	visible the context relevant to the reported error.
-
-2007-07-12  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Factored out, corrected, and commented
-	common code for reporting syntax errors in LEAF elements.
-
-2007-07-11  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCompCmds.c (TclCompileWhileCmd):
-	* generic/tclCompile.c (TclCompileScript):
-	Corrected faulty avoidance of INST_START_CMD when the first opcode in
-	a script is within a loop (as produced by 'while 1'), so that the
-	corresponding command is properly counted. [Bug 1752146]
-
-2007-07-11  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Added a "parseOnly" flag argument to
-	ParseExpr() to indicate whether the caller is Tcl_ParseExpr(), with an
-	end goal of filling a Tcl_Parse with Tcl_Tokens representing the
-	parsed expression, or TclCompileExpr() with the goal of compiling and
-	executing the expression. In the latter case, more aggressive
-	conversion of QUOTED and BRACED lexeme to literals is done. In the
-	former case, all such conversion is avoided, since Tcl_Token
-	production would revert it anyway. This enables simplifications to the
-	GenerateTokensForLiteral() routine as well.
-
-2007-07-10  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Added a field for operator precedence
-	to be stored directly in the parse tree. There's no memory cost to
-	this addition, since that memory would have been lost to alignment
-	issues anyway. Also, converted precedence definitions and lookup
-	tables to use symbolic constants instead of raw number for improved
-	readability, and continued extending/improving/correcting comments.
-	Removed some unused counter variables. Renamed some variables for
-	clarity and replaced some cryptic logic with more readable macros.
-
-2007-07-09  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Revision so that the END lexeme never
-	gets inserted into the parse tree. Later tree traversal never reaches
-	it since its location in the tree is not variable. Starting and
-	stopping with the START lexeme (node 0) is sufficient. Also finished
-	lexeme code commentary.
-
-	* generic/tclCompExpr.c:	Added missing creation and return of
-	the Tcl_Parse fields that indicate error conditions. [Bug 1749987]
-
-2007-07-05  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/init.tcl (unknown):	Corrected inconsistent error message
-	in interactive [unknown] when empty command is invoked. [Bug 1743676]
-
-2007-07-05  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclNamesp.c (SetNsNameFromAny):
-	* generic/tclObj.c (SetCmdNameFromAny): Avoid unnecessary
-	ckfree/ckalloc when the old structs can be reused.
-
-2007-07-04  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclNamesp.c: Fix case where a FQ cmd or ns was being cached
-	* generic/tclObj.c:    in a different interp, tkcon. [Bug 1747512]
-
-2007-07-03  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Revised #define values so that there
-	is now more expansion room to define more BINARY operators.
-
-2007-07-02  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclHash.c (CompareStringKeys): Always use the strcmp()
-	version; the operation is functionally equivalent, the speed is
-	identical (up to measurement limitations), and yet the code is
-	simpler. [FRQ 951168]
-
-2007-07-02  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tcl.h:	Removed TCL_PRESERVE_BINARY_COMPATIBILITY and
-	* generic/tclHash.c:	any code enabled when it is set to 0. We will
-	* generic/tclStubInit.c:	always want to preserve binary compat
-	of the structs that appear in the interface through the 8.* series of
-	releases, so it's pointless to drag around this never-enabled
-	alternative.
-
-	* generic/tclIO.c:	Removed dead code.
-	* unix/tclUnixChan.c:
-
-	* generic/tclCompExpr.c:	Removed dead code, old implementations
-	* generic/tclEvent.c:	of expr parsing and compiling, including the
-	* generic/tclInt.h:	routine TclFinalizeCompilation().
-
-2007-06-30  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCmdIL.c (Tcl_LsortObjCmd): Plug a memory leak caused by a
-	missing Tcl_DecrRefCount on an error path. [Bug 1717186]
-
-2007-06-30  Zoran Vasiljevic <vasiljevic@users.sourceforge.net>
-
-	* generic/tclThread.c: Prevent RemeberSyncObj() from growing the sync
-	object lists by reusing already free'd slots, if possible. See
-	discussion on Bug 1726873 for more information.
-
-2007-06-29  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/DictObj.3 (Tcl_DictObjDone): Improved documentation of this
-	function to make it clearer how to use it. [Bug 1710795]
-
-2007-06-29  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclAlloc.c:		on Darwin, ensure memory allocated by
-	* generic/tclThreadAlloc.c:	the custom TclpAlloc()s is aligned to
-	16 byte boundaries (as is the case with the Darwin system malloc).
-
-	* generic/tclGetDate.y: use ckalloc/ckfree instead of malloc/free.
-	* generic/tclDate.c:	bison 1.875e
-
-	* generic/tclBasic.c (TclEvalEx): fix warnings.
-
-	* macosx/Tcl.xcodeproj/project.pbxproj: better support for renamed tcl
-	* macosx/Tcl.xcodeproj/default.pbxuser: source dir; add 10.5 SDK build
-	* macosx/Tcl-Common.xcconfig:		config; remove tclMathOp.c.
-
-	* macosx/README: document Tcl.xcodeproj changes.
-
-2007-06-28  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:		Removed dead code, including the
-	* generic/tclExecute.c:		entire file tclMathOp.c.
-	* generic/tclInt.h:
-	* generic/tclMathOp.c (removed):
-	* generic/tclTestObj.c:
-	* win/tclWinFile.c:
-
-	* unix/Makefile.in:	Updated to reflect deletion of tclMathOp.c.
-	* win/Makefile.in:
-	* win/makefile.bc:
-	* win/makefile.vc:
-
-2007-06-28  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* generic/tclBasic.c:	  Silence constness warnings for TclStackFree
-	* generic/tclCompCmds.c:  when building with msvc.
-	* generic/tclFCmd.c:
-	* generic/tclIOCmd.c:
-	* generic/tclTrace.c:
-
-2007-06-28  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclVar.c (UnsetVarStruct): fix possible segfault.
-
-2007-06-27  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclTrace.c:	Corrected broken trace reversal logic in
-	* generic/tclTest.c:	TclCheckInterpTraces that led to infinite loop
-	* tests/trace.test:	when multiple Tcl_CreateTrace traces were set
-	and one of them did not fire due to level restrictions. [Bug 1743931]
-
-2007-06-26  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c (TclEvalEx):	Moved some arrays from the C
-	stack to the Tcl stack.
-
-2007-06-26  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclVar.c (UnsetVarStruct): more streamlining.
-
-2007-06-25  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c: Safety checks to avoid crashes in the
-	TclStack* routines when called with an incompletely initialized
-	interp. [Bug 1743302]
-
-2007-06-25  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclVar.c (UnsetVarStruct): fixing incomplete change, more
-	streamlining.
-
-2007-06-24  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclVar.c (TclDeleteCompiledLocalVars): removed inlining that
-	ended up not really optimising (limited benchmarks). Now calling
-	UnsetVarStruct (streamlined old code is #ifdef'ed out, in case better
-	benchmarks do show a difference).
-
-	* generic/tclVar.c (UnsetVarStruct): fixed a leak introduced in last
-	commit.
-
-2007-06-23  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclVar.c (UnsetVarStruct, TclDeleteVars): made the logic
-	slightly clearer, eliminated some duplicated code.
-
-	*** POTENTIAL INCOMPATIBILITY *** (tclInt.h and Var struct users)
-	The core never builds VAR_LINK variable to have traces. Such a
-	"monster", should one exist, will now have its unset traces called
-	*before* it is unlinked.
-
-2007-06-23  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/tclMacOSXNotify.c (AtForkChild): don't call CoreFoundation
-	APIs after fork() on systems where that would lead to an abort().
-
-2007-06-22  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c: Revised TclStackRealloc() signature to better
-	* generic/tclInt.h:	parallel (and fall back on) Tcl_Realloc.
-
-	* generic/tclNamesp.c (TclResetShadowesCmdRefs):	Replaced
-	ckrealloc based allocations with TclStackRealloc allocations.
-
-	* generic/tclCmdIL.c:	More conversions to use TclStackAlloc.
-	* generic/tclScan.c:
-
-2007-06-21  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	 Move most instances of the Tcl_Parse struct
-	* generic/tclCompExpr.c: off the C stack and onto the Tcl stack. This
-	* generic/tclCompile.c:	 is a rather large struct (> 3kB).
-	* generic/tclParse.c:
-
-2007-06-21  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclBasic.c (TEOvI):		Made sure that leave traces
-	* generic/tclExecute.c (INST_INVOKE):	that were created during
-	* tests/trace.test (trace-36.2):	execution of an originally
-	untraced command do not fire [Bug 1740962], partial fix.
-
-2007-06-21  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tcl.h, generic/tclCompile.h, generic/tclCompile.c: Remove
-	references in comments to obsolete {expand} notation. [Bug 1740859]
-
-2007-06-20  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclVar.c: streamline namespace vars deletion: only compute
-	the variable's full name if the variable is traced.
-
-2007-06-20  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclInt.decls: Revised the interfaces of the routines
-	* generic/tclExecute.c: TclStackAlloc and TclStackFree to make them
-	easier for callers to use (or more precisely, harder to misuse).
-	TclStackFree now takes a (void *) argument which is the pointer
-	intended to be freed. TclStackFree will panic if that's not actually
-	the memory the call will free. TSA/TSF also now tolerate receiving
-	(interp == NULL), in which case they simply fall back to be calls to
-	Tcl_Alloc/Tcl_Free.
-
-	* generic/tclIntDecls.h:	make genstubs
-
-	* generic/tclBasic.c:	Updated callers
-	* generic/tclCmdAH.c:
-	* generic/tclCmdIL.c:
-	* generic/tclCompCmds.c:
-	* generic/tclCompExpr.c:
-	* generic/tclCompile.c:
-	* generic/tclFCmd.c:
-	* generic/tclFileName.c:
-	* generic/tclIOCmd.c:
-	* generic/tclIndexObj.c:
-	* generic/tclInterp.c:
-	* generic/tclNamesp.c:
-	* generic/tclProc.c:
-	* generic/tclTrace.c:
-	* unix/tclUnixPipe.c:
-
-2007-06-20  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* tools/tcltk-man2html.tcl: revamp of html doc output to use CSS,
-	standardized headers, subheaders, dictionary sorting of names.
-
-2007-06-18  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* tools/tcltk-man2html.tcl: clean up copyright merging and output.
-	clean up coding constructs.
-
-2007-06-18  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCmdIL.c (InfoFrameCmd):
-	* generic/tclCmdMZ.c (Tcl_SwitchObjCmd):
-	* generic/tclCompile.c (TclInitCompileEnv):
-	* generic/tclProc.c (Tcl_ProcObjCmd, SetLambdaFromAny): Moved the
-	CmdFrame off the C stack and onto the Tcl stack.
-
-	* generic/tclExecute.c (TEBC):	Moved the CmdFrame off the C stack and
-	onto the Tcl stack, between the catch and the execution stacks
-
-2007-06-18  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c (TclEvalEx,TclEvalObjEx):	Moved the CmdFrame off
-	the C stack and onto the Tcl stack.
-
-2007-06-17  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclProc.c (TclObjInterpProcCore): Minor fixes to make
-	* generic/tclExecute.c (TclExecuteByteCode): compilation debugging
-	builds work again. [Bug 1738542]
-
-2007-06-16  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclProc.c (TclObjInterpProcCore): Use switch instead of a
-	chain of if's for a modest performance gain and a little more clarity.
-
-2007-06-15  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCompCmds.c:  Simplified [variable] compiler and executor.
-	* generic/tclExecute.c:	  Missed updates to "there is always a valid
-	frame".
-
-	* generic/tclCompile.c: reverted TclEvalObjvInternal and INST_INVOKE
-	* generic/tclExecute.c: to essentially what they were previous to the
-	* generic/tclBasic.c:	commit of 2007-04-03 [Patch 1693802] and the
-	subsequent optimisations, as they break the new trace tests described
-	below.
-
-	* generic/trace.test: added tests 36 to 38 for dynamic trace creation
-	and addition. These tests expose a change in dynamics due to a recent
-	round of optimisations. The "correct" behaviour is not described in
-	docs nor TIP 62.
-
-2007-06-14  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclInt.decls:	  Modif to the internals of TclObjInterpProc
-	* generic/tclInt.h:	  to reduce stack consumption and improve task
-	* generic/tclIntDecls.h:  separation. Changes the interface of
-	* generic/tclProc.c:	  TclObjInterpProcCore (patching TclOO
-	simultaneously).
-
-	* generic/tclProc.c (TclObjInterpProcCore): simplified obj management
-	in wrongNumArgs calls.
-
-2007-06-14  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompile.c: SetByteCodeFromAny() can no longer return any
-	* generic/tclExecute.c: code other than TCL_OK, so remove code that
-	* generic/tclProc.c:	formerly handled exceptional codes.
-
-2007-06-13  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c (TclCompEvalObj): missed update to "there is
-	always a valid frame".
-
-	* generic/tclProc.c (TclObjInterpProcCore): call TEBC directly instead
-	of going through TclCompEvalObj - no need to check the compilation's
-	freshness, this has already been done. This improves speed and should
-	also provide some relief to [Bug 1066755].
-
-2007-06-12  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclBasic.c (Tcl_CreateInterp): Turn the [info] command into
-	* generic/tclCmdIL.c (TclInitInfoCmd):	 an ensemble, making it easier
-	for third-party code to plug into.
-
-	* generic/tclIndexObj.c (Tcl_WrongNumArgs):
-	* generic/tclNamesp.c, generic/tclInt.h (tclEnsembleCmdType): Make
-	Tcl_WrongNumArgs do replacement correctly with ensembles and other
-	sorts of complex replacement strategies.
-
-2007-06-11  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c:	 comments added to explain iPtr->numLevels
-	management.
-
-	* generic/tclNamesp.c:	 tweaks to Tcl_GetCommandFromObj and
-	* generic/tclObj.c:	 TclGetNamespaceFromObj; modified the usage of
-	structs ResolvedCmdName and ResolvedNsname so that the field refNsPtr
-	is NULL for fully qualified names.
-
-2007-06-10  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclBasic.c:	 Further TEOvI split, creating a new
-	* generic/tclCompile.h:	 TclEvalObjvKnownCommand() function to handle
-	* generic/tclExecute.c:	 commands that are already known and are not
-	traced. INST_INVOKE now calls into this function instead of inlining
-	parts of TEOvI. Same perf, better isolation.
-
-	***POTENTIAL INCOMPAT*** There is a subtle issue with the timing of
-	execution traces that is changed here - first change appeared in my
-	commit of 2007-04-03 [Patch 1693802], which caused some divergence
-	between compiled and non-compiled code.
-	***THIS CHANGE IS UNDER REVIEW***
-
-2007-06-10  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* README: updated links. [Bug 1715081]
-
-	* generic/tclExecute.c (TclExecuteByteCode): restore support for
-	INST_CALL_BUILTIN_FUNC1 and INST_CALL_FUNC1 bytecodes to support 8.4-
-	precompiled sources (math functions). [Bug 1720895]
-
-2007-06-10  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclInt.h:
-	* generic/tclNamesp.c:
-	* generic/tclObj.c:
-	* generic/tclvar.c: new macros TclGetCurrentNamespace() and
-	TclGetGlobalNamespace(); Tcl_GetCommandFromObj and
-	TclGetNamespaceFromObj rewritten to make the logic clearer; slightly
-	faster too.
-
-2007-06-09  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c (INST_INVOKE): isolated two vars to the small
-	block where they are actually used.
-
-	* generic/tclObj.c (Tcl_GetCommandFromObj): rewritten to make the
-	logic clearer; slightly faster too.
-
-	* generic/tclBasic.c:	Split TEOv in two, by separating a processor
-	for non-TCL_OK returns. Also split TEOvI in a full version that
-	handles non-existing and traced commands, and a separate shorter
-	version for the regular case.
-
-	* generic/tclBasic.c:	Moved the generation of command strings for
-	* generic/tclTrace.c:	traces: previously in Tcl_EvalObjv(), now in
-	TclCheck[Interp|Execution]Traces(). Also insured that the strings are
-	properly NUL terminated at the correct length. [Bug 1693986]
-
-	***POTENTIAL INCOMPATIBILITY in internal API***
-	The functions TclCheckInterpTraces() and TclCheckExecutionTraces() (in
-	internal stubs) used to be noops if the command string was NULL, this
-	is not true anymore: if the command string is NULL, they generate an
-	appropriate string from (objc,objv) and use it to call the traces. The
-	caller might as well not call them with a NULL string if he was
-	expecting a noop.
-
-	* generic/tclBasic.c:	Extend usage of TclLimitReady() and
-	* generic/tclExecute.c: (new) TclLimitExceeded() macros.
-	* generic/tclInt.h:
-	* generic/tclInterp.c:
-
-	* generic/tclInt.h:	New TclCleanupCommandMacro for core usage.
-	* generic/tclBasic.c:
-	* generic/tclExecute.c:
-	* generic/tclObj.c:
-
-2007-06-09 Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Tcl.xcodeproj/project.pbxproj: add new Tclsh-Info.plist.in.
-
-2007-06-08  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd): Changed [string first] and
-	* doc/string.n: [string last] so that they have clearer descriptions
-	for those people who know the adage about needles and haystacks. This
-	follows suggestions on comp.lang.tcl...
-
-2007-06-06  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclParse.c: fix for uninit read. [Bug 1732414]
-
-2007-06-06  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Tcl.xcodeproj/project.pbxproj: add settings for Fix&Continue.
-
-	* unix/configure.in (Darwin):		add plist for tclsh; link the
-	* unix/Makefile.in  (Darwin):		Tcl and tclsh plists into
-	* macosx/Tclsh-Info.plist.in (new):	their binaries in all cases.
-	* macosx/Tcl-Common.xcconfig:
-
-	* unix/tcl.m4 (Darwin): fix CF checks in fat 32&64bit builds.
-	* unix/configure: autoconf-2.59
-
-2007-06-05  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Added interp flag value ERR_LEGACY_COPY to
-	* generic/tclInt.h:	control the timing with which the global
-	* generic/tclNamesp.c:	variables ::errorCode and ::errorInfo get
-	* generic/tclProc.c:	updated after an error. This keeps more
-	* generic/tclResult.c:	precise compatibility with Tcl 8.4.
-	* tests/result.test (result-6.2):	[Bug 1649062]
-
-2007-06-05  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclInt.h:
-	* generic/tclExecute.c: Tcl-stack reform, [Patch 1701202]
-
-2007-06-03  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/Makefile.in: add datarootdir to silence autoconf-2.6x warning.
-
-2007-05-30  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Removed code that dealt with
-	* generic/tclCompile.c: TCL_TOKEN_EXPAND_WORD tokens representing
-	* generic/tclCompile.h: expanded literal words. These sections were
-	mostly in place to enable [info frame] to discover line information in
-	expanded literals. Since the parser now generates a token for each
-	post-expansion word referring to the right location in the original
-	script string, [info frame] gets all the data it needs.
-
-	* generic/tclInt.h:	Revised the parser so that it never produces
-	* generic/tclParse.c:	TCL_TOKEN_EXPAND_WORD tokens when parsing an
-	* tests/parse.test:	expanded literal word; that is, something like
-	{*}{x y z}. Instead, generate the series of TCL_TOKEN_SIMPLE_WORD
-	tokens to represent the words that expansion of the literal string
-	produces. [RFE 1725186]
-
-2007-05-29  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* unix/tclUnixThrd.c (Tcl_JoinThread): fix for 64-bit handling of
-	pthread_join exit return code storage. [Bug 1712723]
-
-2007-05-22  Don Porter	<dgp@users.sourceforge.net>
-
-	[core-stabilizer-branch]
-
-	* unix/configure:	autoconf-2.59 (FC6 fork)
-	* win/configure:
-
-	* README:		Bump version number to 8.5b1
-	* generic/tcl.h:
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-
-2007-05-18  Don Porter	<dgp@users.sourceforge.net>
-
-	* unix/configure:	autoconf-2.59 (FC6 fork)
-	* win/configure:
-
-	* README:		Bump version number to 8.5a7
-	* generic/tcl.h:
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-
-	* generic/tclParse.c:	Disable and remove the ALLOW_EXPAND sections
-	* tests/info.test:	that continued to support the deprecated
-	* tests/mathop.test:	{expand} syntax. Updated the few remaining
-	users of that syntax in the test suite.
-
-2007-05-17  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclExecute.c (TclLimitReady): Created a macro version of
-	Tcl_LimitReady just for TEBC, to reduce the amount of times that the
-	bytecode engine calls out to external functions on the critical path.
-	* generic/tclInterp.c (Tcl_LimitReady): Added note to remind anyone
-	doing maintenance that there is a macro version to update.
-
-2007-05-17  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tcl.decls: workaround 'make checkstubs' failures from
-	tclStubLib.c MODULE_SCOPE revert. [Bug 1716117]
-
-2007-05-16  Joe English	 <jenglish@users.sourceforge.net>
-
-	* generic/tclStubLib.c:	 Change Tcl_InitStubs(), tclStubsPtr, and the
-	auxilliary stubs table pointers back to public visibility.
-
-	These symbols need to be exported so that stub-enabled extensions may
-	be statically linked into an extended tclsh or Big Wish with a
-	dynamically-linked libtcl. [Bug 1716117]
-
-2007-05-15  Don Porter	<dgp@users.sourceforge.net>
-
-	* win/configure:	autoconf-2.59 (FC6 fork)
-
-	* library/reg/pkgIndex.tcl:	Bump to registry 1.2.1 to account for
-	* win/configure.in:		[Bug 1682211] fix.
-	* win/makefile.bc:
-	* win/tclWinReg.c:
-
-2007-05-11  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* generic/tclInt.h: Removed TclEvalObjEx and TclGetSrcInfoForPc from
-	tclInt.h now they are in the internal stubs table.
-
-2007-05-09  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclInt.h:	TclFinalizeThreadAlloc() is always defined, so
-	make sure it is also always declared (with MODULE_SCOPE).
-
-2007-05-09  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclInt.h: fix warning when building threaded with -DPURIFY.
-
-	* macosx/Tcl.xcodeproj/project.pbxproj: add 'DebugUnthreaded' &
-	* macosx/Tcl.xcodeproj/default.pbxuser: 'DebugLeaks' configs and env
-	var settings needed to run the 'leaks' tool.
-
-2007-05-07  Don Porter	<dgp@users.sourceforge.net>
-
-	[Tcl Bug 1706140]
-
-	* generic/tclLink.c (LinkTraceProc):	Update Tcl_VarTraceProcs so
-	* generic/tclNamesp.c (Error*Read):	they call Tcl_InterpDeleted()
-	* generic/tclTrace.c (Trace*Proc):	for themselves, and do not
-	* generic/tclUtil.c (TclPrecTraceProc): rely on (frequently buggy)
-	setting of the TCL_INTERP_DESTROYED flag by the trace core.
-
-	* generic/tclVar.c:	Update callers of TclCallVarTraces to not pass
-	in the TCL_INTERP_DESTROYED flag. Also apply filters so that public
-	routines only pass documented flag values down to lower level routines
-
-	* generic/tclTrace.c (TclCallVarTraces):	The setting of the
-	TCL_INTERP_DESTROYED flag is now done entirely within the
-	TclCallVarTraces routine, the only place it can be done right.
-
-2007-05-06  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclInt.h (ExtraFrameInfo): Create a new mechanism for
-	* generic/tclCmdIL.c (InfoFrameCmd): conveying what information needs
-	to be added to the results of [info frame] to replace the hack that
-	was there before.
-	* generic/tclProc.c (Tcl_ApplyObjCmd): Use the new mechanism for the
-	[apply] command, the only part of Tcl itself that needs it (so far).
-
-	* generic/tclInt.decls (TclEvalObjEx, TclGetSrcInfoForPc): Expose
-	these two functions through the internal stubs table, necessary for
-	extensions that need to integrate deeply with TIP#280.
-
-2007-05-05  Donal K. Fellows  <dkf@users.sf.net>
-
-	* win/tclWinFile.c (TclpGetUserHome):	Squelch type-pun warnings in
-	* win/tclWinInit.c (TclpSetVariables):	Win-specific code not found
-	* win/tclWinReg.c (AppendSystemError):	during earlier work on Unix.
-
-2007-05-04  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclIO.c (TclFinalizeIOSubsystem): Added an initializer to
-	silence a spurious gcc warning about use of an uninitialized
-	variable.
-	* tests/encoding.test: Modified so that encoding tests happen in a
-	private namespace, to avoid polluting the global one. This problem was
-	discovered when running the test suite '-singleproc 1 -skip exec.test'
-	because the 'path' variable in encoding.test conflicted with the one
-	in io.test.
-	* tests/io.test: Made more of the working variables private to the
-	namespace.
-
-2007-05-02  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclTest.c (SimpleMatchInDirectory): Corrected a refcount
-	imbalance that affected the filesystem-[147]* tests in the test suite.
-	Thanks to Don Porter for the patch. [Bug 1710707]
-	* generic/tclPathObj.c (Tcl_FSJoinPath, Tcl_FSGetNormalizedPath):
-	Corrected several memory leaks that caused refcount imbalances
-	resulting in memory leaks on Windows. Thanks to Joe Mistachkin for the
-	patch.
-
-2007-05-01  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclVar.c (TclPtrSetVar): fixed leak whenever newvaluePtr had
-	refCount 0 and was used for appending (but not lappending). Thanks to
-	mistachkin and kbk. [Bug 1710710]
-
-2007-05-01  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclIO.c (DeleteChannelTable): Made changes so that
-	DeleteChannelTable tries to close all open channels, not just the
-	first. [Bug 1710285]
-	* generic/tclThread.c (TclFinalizeSynchronization): Make sure that TSD
-	blocks get freed on non-threaded builds. [Bug 1710825]
-	* tests/utf.test (utf-25.1--utf-25.4): Modified tests to clean up
-	after the 'testobj' extension to avoid spurious reports of memory
-	leaks.
-
-2007-05-01  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c (STR_MAP): When [string map] has a pure dict map,
-	a missing Tcl_DictObjDone() call led to a memleak. [Bug 1710709]
-
-2007-04-30  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/Makefile.in: add 'tclsh' dependency to install targets that
-	rely on tclsh, fixes parallel 'make install' from empty build dir.
-
-2007-04-30  Andreas Kupries <andreask@gactivestate.com>
-
-	* generic/tclIO.c (FixLevelCode): Corrected reference count
-	mismanagement of newlevel, newcode. Changed to allocate the Tcl_Obj's
-	as late as possible, and only when actually needed. [Bug 1705778, leak
-	K29]
-
-2007-04-30  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclProc.c (Tcl_ProcObjCmd, SetLambdaFromAny): Corrected
-	reference count mismanagement on the name of the source file in the
-	TIP 280 code. [Bug 1705778, leak K02 among other manifestations]
-
-2007-04-25  Donal K. Fellows  <dkf@users.sf.net>
-
-	*** 8.5a6 TAGGED FOR RELEASE ***
-
-	* generic/tclProc.c (TclObjInterpProcCore): Only allocate objects for
-	error message generation when associated with argument names that are
-	really used. [Bug 1705778, leak K15]
-
-2007-04-25  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclIOUtil.c (Tcl_FSChdir): Changed the memory management so
-	that the path returned from Tcl_FSGetNativePath is not duplicated
-	before being stored as the current directory, to avoid a memory leak.
-	[Bug 1705778, leak K01 among other manifestations]
-
-2007-04-25  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c (ParseExpr):	Revised to be sure that an
-	error return doesn't prevent all literals getting placed on the
-	litList to be returned to the caller for freeing. Corrects some
-	memleaks. [Bug 1705778, leak K23]
-
-2007-04-25  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/Makefile.in (dist): add macosx/*.xcconfig files to src dist;
-	copy license.terms to dist macosx dir; fix autoheader bits.
-
-2007-04-24  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclListObj.c: reverting [Patch 738900] (committed on
-	2007-04-20). Causes some Tk test breakage of unknown importance, but
-	the impact of the patch itself is likely to be so small that it does
-	not warrant investigation at this time.
-
-2007-04-24  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclDictObj.c (DictKeysCmd): Rewrote so that the lock on the
-	internal representation of a dict is only set when necessary. [Bug
-	1705778, leak K04]
-	(DictFilterCmd): Added code to drop the lock in the trivial match
-	case. [Bug 1705778, leak K05]
-
-2007-04-24  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclBinary.c: Addressed several code paths where the error
-	return from the 'binary format' command leaked the result buffer.
-	* generic/tclListObj.c (TclLsetFlat): Fixed a bug where the new list
-	under construction was leaked in the error case. [Bug 1705778, leaks
-	K13 and K14]
-
-2007-04-24  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* unix/Makefile.in (dist): add platform library package to src dist
-
-2007-04-24  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c (ParseExpr): Memory leak in error case; the
-	literal Tcl_Obj was not getting freed. [Bug 1705778, leak #1 (new)]
-
-	* generic/tclNamesp.c (Tcl_DeleteNamespace):	Corrected flaw in the
-	flag marking scheme to be sure that global namespaces are freed when
-	their interp is deleted. [Bug 1705778]
-
-2007-04-24  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclExecute.c (TclExecuteByteCode): Plugged six memory leaks
-	in bignum arithmetic.
-	* generic/tclIOCmd.c (Tcl_ReadObjCmd): Plugged a leak of the buffer
-	object if the physical read returned an error and the bypass area had
-	no message.
-	* generic/tclIORChan.c (TclChanCreateObjCmd): Plugged a leak of the
-	return value from the "initialize" method of a channel handler.
-	(All of the above under [Bug 1705778])
-
-2007-04-23  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclCkalloc.c: fix warnings from gcc build configured with
-	* generic/tclCompile.c: --enable-64bit --enable-symbols=all.
-	* generic/tclExecute.c:
-
-	* unix/tclUnixFCmd.c: add workaround for crashing bug in fts_open()
-	* unix/tclUnixInit.c: without FTS_NOSTAT on 64bit Darwin 8 or earlier.
-
-	* unix/tclLoadDyld.c (TclpLoadMemory): fix (void*) arithmetic.
-
-	* macosx/Tcl-Common.xcconfig: enable more warnings.
-
-	* macosx/Tcl.xcodeproj/project.pbxproj: add 'DebugMemCompile' build
-	configuration that calls configure with --enable-symbols=all; override
-	configure check for __attribute__((__visibility__("hidden"))) in Debug
-	configuration to restore availability of ZeroLink.
-
-	* macosx/tclMacOSXNotify.c: fix warnings.
-
-	* macosx/tclMacOSXFCmd.c: const fixes.
-
-	* macosx/Tcl-Common.xcconfig:	fix whitespace.
-	* macosx/Tcl-Debug.xcconfig:
-	* macosx/Tcl-Release.xcconfig:
-	* macosx/README:
-
-	* macosx/GNUmakefile:		fix/add copyright and license refs.
-	* macosx/tclMacOSXBundle.c:
-	* macosx/Tcl-Info.plist.in:
-	* macosx/Tcl.xcode/project.pbxproj:
-	* macosx/Tcl.xcodeproj/project.pbxproj:
-
-	* unix/configure.in: install license.terms into Tcl.framework.
-	* unix/configure: autoconf-2.59
-
-2007-04-23  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclVar.c (UnsetVarStruct):	Make sure the
-	TCL_INTERP_DESTROYED flags gets passed to unset trace routines so they
-	can respond appropriately. [Bug 1705778, leak #9]
-
-2007-04-23  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCompile.c (TclFreeCompileEnv): Tip 280's new field
-	extCmdMapPtr was not being freed. [Bug 1705778, leak #1]
-
-2007-04-23  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclCompCmds.c (TclCompileUpvarCmd): Plugged a memory leak in
-	'upvar' when compiling (a) upvar outside a proc, (b) upvar with a
-	syntax error, or (c) upvar where the frame index is not known at
-	compile time.
-	* generic/tclCompExpr.c (ParseExpr): Plugged a memory leak when
-	parsing expressions that contain syntax errors.
-	* generic/tclEnv.c (ReplaceString): Clear memory correctly when
-	growing the cache to avoid reads of uninitialised data.
-	* generic/tclIORChan.c (TclChanCreateObjCmd, FreeReflectedChannel):
-	Plugged two memory leaks.
-	* generic/tclStrToD.c (AccumulateDecimalDigit): Fixed a mistake where
-	we'd run beyond the end of the 'pow10_wide' array if a number begins
-	with a string of more than 'maxpow10_wide' zeroes.
-	* generic/tclTest.c (Testregexpobjcmd): Removed an invalid access
-	beyond the end of 'objv' in 'testregexp -about'.
-	All of these issues reported under [Bug 1705778] - detected with the
-	existing test suite, no new regression tests required.
-
-2007-04-22  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclVar.c (TclDeleteNamespaceVars): fixed access to freed
-	memory detected by valgrind: Tcl_GetCurrentNamespace was being
-	called after freeing root CallFrame (on interp deletion).
-
-2007-04-20  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclListObj.c (SetListFromAny): avoid discarding internal
-	reps of objects converted to singleton lists. [Patch 738900]
-
-2007-04-20  Kevin B. Kenny  <kennykb@acm.org>
-
-	* doc/clock.n: Corrected a silly error (transposed 'uppercase' and
-	'lowercase' in clock.n. [Bug 1656002]
-	Clarified that [clock scan] does not recognize a locale's alternative
-	calendar.
-	Deleted an entirely superfluous (and also incorrect) remark about the
-	effect of Daylight Saving Time on relative times in [clock scan]. [Bug
-	1582951]
-	* library/clock.tcl: Corrected an error in skipping over the %Ey field
-	on input.
-	* library/msgs/ja.msg:
-	* tools/loadICU.tcl: Corrected several localisation faults in the
-	Japanese locale (most notably, incorrect dates for the Emperors'
-	eras). Many thanks to SourceForge user 'nyademo' for pointing this out
-	and developing a fix. [Bug 1637471]
-	* generic/tclPathObj.c: Corrected a 'const'ness fault that caused
-	bitter complaints from MSVC.
-	* tests/clock.test (clock-40.1, clock-58.1, clock-59.1): Corrected a
-	test case that depended on ":localtime" being able to handle dates
-	prior to the Posix epoch. [Bug 1618445] Added a test case for the
-	dates of the Japanese emperors. [Bug 1637471] Added a regression test
-	for military time zone input conversion. [Bug 1586828]
-	* generic/tclGetDate.y (MilitaryTable): Fixed an ancient bug where the
-	military NZA time zones had the signs reversed. [Bug 1586828]
-	* generic/tclDate.c: Regenerated.
-	* doc/Notifier.3: Documented Tcl_SetNotifier and Tcl_ServiceModeHook.
-	Quite against my better judgment. [Bug 414933]
-	* generic/tclBasic.c, generic/tclCkalloc.c, generic/tclClock.c:
-	* generic/tclCmdIL.c, generic/tclCmdMZ.c, generic/tclFCmd.c:
-	* generic/tclFileName.c, generic/tclInterp.c, generic/tclIO.c:
-	* generic/tclIOUtil.c, generic/tclNamesp.c, generic/tclObj.c:
-	* generic/tclPathObj.c, generic/tclPipe.c, generic/tclPkg.c:
-	* generic/tclResult.c, generic/tclTest.c, generic/tclTestObj.c:
-	* generic/tclVar.c, unix/tclUnixChan.c, unix/tclUnixTest.c:
-	* win/tclWinLoad.c, win/tclWinSerial.c: Replaced commas in varargs
-	with string concatenation where possible. [Patch 1515234]
-	* library/tzdata/America/Tegucigalpa:
-	* library/tzdata/Asia/Damascus: Olson's tzdata 2007e.
-
-2007-04-19  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/regcomp.c, generic/regc_cvec.c, generic/regc_lex.c,
-	* generic/regc_locale.c: Improve the const-correctness of the RE
-	compiler.
-
-2007-04-18  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c (INST_LSHIFT): fixed a mistake introduced in
-	version 1.266 ('=' became '=='), which effectively turned the block
-	that handles native shifts into dead code. This explains why the
-	testsuite did not pick this mistake. Rewrote to make the intention
-	clear.
-
-	* generic/tclInt.h (TclDecrRefCount): change the order of the
-	branches, use empty 'if ; else' to handle use in unbraced outer
-	if/else conditions (as already done in tcl.h)
-
-	* generic/tclExecute.c: slight changes in Tcl_Obj management.
-
-2007-04-17  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/clock.tcl: Fixed the naming of
-	::tcl::clock::ReadZoneinfoFile because (yoicks!) it was in the global
-	namespace.
-	* doc/clock.n: Clarified the cases in which legacy time zone is
-	recognized. [Bug 1656002]
-
-2007-04-17  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c: fixed checkInterp logic [Bug 1702212]
-
-2007-04-16  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* various (including generic/tclTest.c): Complete the purge of K&R
-	function definitions from manually-written code.
-
-2007-04-15  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclCompCmds.c: added a cast to silence a compiler error on
-	VC2005.
-	* library/clock.tcl: Restored unique-prefix matching of keywords on
-	the [clock] command. [Bug 1690041]
-	* tests/clock.test: Added rudimentary test cases for unique-prefix
-	matching of keywords.
-
-2007-04-14  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c: removed some code at INST_EXPAND_SKTOP that
-	duplicates functionality already present at checkForCatch.
-
-2007-04-12  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c: new macros OBJ_AT_TOS, OBJ_UNDER_TOS,
-	OBJ_AT_DEPTH(n) and CURR_DEPTH that remove all direct references to
-	tosPtr from TEBC (after initialisation and the code at the label
-	cleanupV_pushObjResultPtr).
-
-2007-04-11  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCompCmds.c: moved all exceptDepth management to the
-	macros - the decreasing half was managed by hand.
-
-2007-04-10  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclInt.h (TclNewLiteralStringObj): New macro to make
-	allocating literal string objects (i.e. objects whose value is a
-	constant string) easier and more efficient, by allowing the omission
-	of the length argument. Based on [Patch 1529526] (afredd)
-	* generic/*.c: Make use of this (in many files).
-
-2007-04-08  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCompile (tclInstructionTable): Fixed bugs in description
-	of dict instructions.
-
-2007-04-07  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCompile (tclInstructionTable): Fixed bug in description
-	of INST_START_COMMAND.
-
-	* generic/tclExecute.c (TEBC): Small code reduction.
-
-2007-04-06  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c (TEBC):
-	* generic/tclNamespace.c (NsEnsembleImplementationCmd):
-	* generic/tclProc.c (InitCompiledLocals, ObjInterpProcEx)
-	(TclObjInterpProcCore, ProcCompileProc): Code reordering to reduce
-	branching and improve branch prediction (assume that forward branches
-	are typically not taken).
-
-2007-04-03  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c: INST_INVOKE optimisation. [Patch 1693802]
-
-2007-04-03  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclNamesp.c:	Revised ErrorCodeRead and ErrorInfoRead trace
-	routines so they guarantee the ::errorCode and ::errorInfo variable
-	always appear to exist. [Bug 1693252]
-
-2007-04-03  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclInt.decls:	 Moved TclGetNamespaceFromObj() to the
-	* generic/tclInt.h:	 internal stubs table; regen.
-	* generic/tclIntDecls.h:
-	* generic/tclStubInit.c:
-
-2007-04-02  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclBasic.c:	  Added bytecode compilers for the variable
-	* generic/tclCompCmds.c:  linking commands: 'global', 'variable',
-	* generic/tclCompile.h:	  'upvar', 'namespace upvar' [Patch 1688593]
-	* generic/tclExecute.c:
-	* generic/tclInt.h:
-	* generic/tclVar.c:
-
-2007-04-02  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Replace arrays on the C stack and ckalloc
-	* generic/tclExecute.c: calls with TclStackAlloc calls to use memory
-	* generic/tclFCmd.c:	on Tcl's evaluation stack.
-	* generic/tclFileName.c:
-	* generic/tclIOCmd.c:
-	* generic/tclIndexObj.c:
-	* generic/tclInterp.c:
-	* generic/tclNamesp.c:
-	* generic/tclTrace.c:
-	* unix/tclUnixPipe.c:
-
-2007-04-01  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCompile.c (TclCompileScript, TclPrintInstruction):
-	* generic/tclExecute.c (TclExecuteByteCode): Changed the definition of
-	INST_START_CMD so that it knows how many commands start at the current
-	location. This makes the interpreter command counter correct without
-	requiring a large number of instructions to be issued. (See my change
-	from 2007-01-19 for what triggered this.)
-
-2007-03-30  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompile.c:
-	* generic/tclCompExpr.c:
-	* generic/tclCompCmds.c:	Replace arrays on the C stack and
-	ckalloc calls with TclStackAlloc calls to use memory on Tcl's
-	evaluation stack.
-
-	* generic/tclCmdMZ.c:	Revised [string to* $s $first $last]
-	implementation to reduce number of allocs/copies.
-
-	* tests/string.test:  More [string reverse] tests.
-
-2007-03-30  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c: optimise the lookup of elements of indexed
-	arrays.
-
-2007-03-29  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclProc.c (Tcl_ApplyObjCmd):
-	* tests/apply.test (9.3): Fixed Tcl_Obj leak on error return; an
-	unneeded ref to lambdaPtr was being set and not released on an error
-	return path.
-
-2007-03-28  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c (STR_REVERSE):	Implement the actual [string
-	reverse] command in terms of the new TclStringObjReverse() routine.
-
-	* generic/tclInt.h (TclStringObjReverse):	New internal routine
-	* generic/tclStringObj.c (TclStringObjReverse): that implements the
-	[string reverse] operation, making use of knowledge/surgery of the
-	String intrep to minimize the number of allocs and copies needed to do
-	the job.
-
-2007-03-27  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCmdMZ.c (STR_MAP): Replace ckalloc calls with
-	TclStackAlloc calls.
-
-2007-03-24  Zoran Vasiljevic <vasiljevic@users.sourceforge.net>
-
-	* win/tclWinThrd.c: Thread exit handler marks the current thread as
-	un-initialized. This allows exit handlers that are registered later to
-	re-initialize this subsystem in case they need to use some sync
-	primitives (cond variables) from this file again.
-
-2007-03-23  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclBasic.c (DeleteInterpProc): pop the root frame pointer
-	before deleting the global namespace [Bug 1658572]
-
-2007-03-23  Kevin B. Kenny  <kennykb@acm.org>
-
-	* win/Makefile.in: Added code to keep a Cygwin path name from leaking
-	into LIBRARY_DIR when doing 'make test' or 'make runtest'.
-
-2007-03-22  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCmdAH.c (Tcl_ForeachObjCmd):	Replaced arrays on the
-	C stack and ckalloc calls with TclStackAlloc calls to use memory on
-	Tcl's evaluation stack.
-
-	* generic/tclExecute.c: Revised GrowEvaluationStack to take an
-	argument specifying the growth required by the caller, so that a
-	single reallocation / copy is the most that will ever be needed even
-	when required growth is large.
-
-2007-03-21  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c: More ckalloc -> ckrealloc conversions.
-	* generic/tclLiteral.c:
-	* generic/tclNamesp.c:
-	* generic/tclParse.c:
-	* generic/tclPreserve.c:
-	* generic/tclStringObj.c:
-	* generic/tclUtil.c:
-
-2007-03-20  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclEnv.c:	Some more ckalloc -> ckrealloc replacements.
-	* generic/tclLink.c:
-
-2007-03-20  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclDate.c: Rebuilt, despite Donal Fellows's comment when
-	committing it that no rebuild was required.
-	* generic/tclGetDate.y: According to Donal Fellows, "Introduce modern
-	formatting standards; no need for rebuild of tclDate.c."
-
-	* library/tzdata/America/Cambridge_Bay:
-	* library/tzdata/America/Havana:
-	* library/tzdata/America/Inuvik:
-	* library/tzdata/America/Iqaluit:
-	* library/tzdata/America/Pangnirtung:
-	* library/tzdata/America/Rankin_Inlet:
-	* library/tzdata/America/Resolute:
-	* library/tzdata/America/Yellowknife:
-	* library/tzdata/Asia/Choibalsan:
-	* library/tzdata/Asia/Dili:
-	* library/tzdata/Asia/Hovd:
-	* library/tzdata/Asia/Jakarta:
-	* library/tzdata/Asia/Jayapura:
-	* library/tzdata/Asia/Makassar:
-	* library/tzdata/Asia/Pontianak:
-	* library/tzdata/Asia/Ulaanbaatar:
-	* library/tzdata/Europe/Istanbul: Upgraded to Olson's tzdata2007d.
-
-	* generic/tclListObj.c (TclLsetList, TclLsetFlat):
-	* tests/lset.test: Changes to deal with shared internal representation
-	for lists passed to the [lset] command. Thanks to Don Porter for
-	fixing this issue. [Bug 1677512]
-
-2007-03-19  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompile.c: Revise the various expansion routines for
-	CompileEnv fields to use ckrealloc() where appropriate.
-
-	* generic/tclBinary.c (Tcl_SetByteArrayLength): Replaced ckalloc() /
-	memcpy() sequence with ckrealloc() call.
-
-	* generic/tclBasic.c (Tcl_CreateMathFunc):	Replaced some calls to
-	* generic/tclEvent.c (Tcl_CreateThread):	Tcl_Alloc() with calls
-	* generic/tclObj.c (UpdateStringOfBignum):	to ckalloc(), which
-	* unix/tclUnixTime.c (SetTZIfNecessary):	better supports memory
-	* win/tclAppInit.c (setargv):			debugging.
-
-2007-03-19  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* doc/regsub.n: Corrected example so that it doesn't recommend
-	potentially unsafe practice. Many thanks to Konstantin Kushnir
-	<chpock@gmail.com> for reporting this.
-
-2007-03-17  Kevin B. Kenny  <kennykb@acm.org>
-
-	* win/tclWinReg.c (GetKeyNames): Size the buffer for enumerating key
-	names correctly, so that Unicode names exceeding 127 chars can be
-	retrieved without crashing. [Bug 1682211]
-	* tests/registry.test (registry-4.9): Added test case for the above
-	bug.
-
-2007-03-15  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tclIOUtil.c (Tcl_Stat): Reimplement workaround to avoid gcc
-	warning by using local variables. When the macro argument is of type
-	long long instead of long, the incorrect warning is not generated.
-
-2007-03-15  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* win/Makefile.in: Fully qualify LIBRARY_DIR so that `make test` does
-	not depend on working dir.
-
-2007-03-15  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* tests/parse.test: Add two backslash newline parse tests.
-
-2007-03-12  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c (INST_FOREACH_STEP4):	Make private copy of
-	* tests/foreach.test (foreach-10.1):	value list to be assigned to
-	variables so that shimmering of that list doesn't lead to invalid
-	pointers. [Bug 1671087]
-
-	* generic/tclEvent.c (HandleBgErrors):	Make efficient private copy
-	* tests/event.test (event-5.3): of the command prefix for the interp's
-	background error handling command to avoid panics due to pointers to
-	memory invalid after shimmering. [Bug 1670155]
-
-	* generic/tclNamesp.c (NsEnsembleImplementationCmd):	Make efficient
-	* tests/namespace.test (namespace-42.8):	private copy of the
-	command prefix as we invoke the command appropriate to a particular
-	subcommand of a particular ensemble to avoid panic due to shimmering
-	of the List intrep. [Bug 1670091]
-
-	* generic/tclVar.c (TclArraySet):	Make efficient private copy of
-	* tests/var.test (var-17.1):	the "list" argument to [array set] to
-	avoid crash due to shimmering invalidating pointers. [Bug 1669489]
-
-2007-03-12  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclCmdIL.c (Tcl_LsortObjCmd): Fix problems with declaration
-	positioning and memory leaks. [Bug 1679072]
-
-2007-03-11  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCmdIL.c (Tcl_LreverseObjCmd): Ensure that a list is
-	correctly reversed even if its internal representation is shared
-	without the object itself being shared. [Bug 1675044]
-
-2007-03-10  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCmdIL (Tcl_LsortObjCmd): changed fix to [Bug 1675116] to
-	use the cheaper TclListObjCopy() instead of Tcl_DuplicateObj().
-
-2007-03-09  Andreas Kupries  <andreask@activestate.com>
-
-	* library/platform/shell.tcl: Made more robust if an older platform
-	* library/platform/pkgIndex.tcl: package is present in the inspected
-	* unix/Makefile.in: shell. Package forget it to prevent errors. Bumped
-	* win/Makefile.in: package version to 1.1.3, and updated the Makefiles
-	installing it as Tcl Module.
-
-2007-03-09  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclCmdIL.c (Tcl_LsortObjCmd): Handle tricky case with loss
-	* tests/cmdIL.test (cmdIL-1.29):	of list rep during sorting due
-	to shimmering. [Bug 1675116]
-
-2007-03-09  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/clock.tcl (ReadZoneinfoFile): Added Y2038 compliance to the
-	code for version-2 'zoneinfo' files.
-	* tests/clock.test (clock-56.3): Added a test case for Y2038 and
-	'zoneinfo'. Modified test initialisation to use the
-	'loadTestedCommands' function of tcltest to bring in the correct path
-	for the registry library.
-
-2007-03-08  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclListObj.c (TclLsetList):	Rewrite so that the routine
-	itself does not do any direct intrep surgery. Better isolates those
-	things into the implementation of the "list" Tcl_ObjType.
-
-2007-03-08  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclListObj.c (TclLindexList, TclLindexFlat): Moved these
-	functions to tclListObj.c from tclCmdIL.c to mirror the way that the
-	equivalent functions for [lset]'s guts are arranged.
-
-2007-03-08  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/clock.tcl: Further tweaks to the Windows time zone table
-	(restoring missing Mexican time zones). Added rudimentary handling of
-	version-2 'zoneinfo' files. Update US DST rules so that zones such as
-	'EST5EDT' get the correct transition dates.
-	* tests/clock.test: Added rudimentary test cases for 'zoneinfo'
-	parsing. Adjusted several tests that depended on obsolete US DST
-	transition rules.
-
-2007-03-07  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/tclMacOSXNotify.c: add spinlock debugging and sanity checks.
-
-	* macosx/Tcl.xcodeproj/project.pbxproj: ensure gcc version used by
-	* macosx/Tcl.xcodeproj/default.pbxuser: Xcode and configure/make are
-	* macosx/Tcl-Common.xcconfig:		consistent and independent of
-	gcc_select default and CC env var; fixes for Xcode 3.0.
-
-	* unix/tcl.m4 (Darwin): s/CFLAGS/CPPFLAGS/ in macosx-version-min check
-	* unix/configure: autoconf-2.59
-
-2007-03-07  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCmdIL.c (TclLindex*):	Rewrites to make efficient
-	private copies of the list and indexlist arguments, so we can operate
-	on the list elements directly with no fear of shimmering effects.
-	Replaces defensive coding schemes that are otherwise required. End
-	result is that TclLindexList is entirely a wrapper around
-	TclLindexFlat, which is now the core engine of all [lindex]
-	operations.
-
-	* generic/tclObj.c (Tcl_AppendAllObjTypes):	Converted to simpler
-	list validity test.
-
-2007-03-07  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclRegexp.c (TclRegAbout): Generate information about a
-	regexp as a Tcl_Obj instead of as a string, which is more efficient.
-
-2007-03-07  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/clock.tcl: Adjusted Windows time zone table to handle new US
-	DST rules by locale rather than as Posix time zone spec.
-	* tests/clock.test (clock-39.6, clock-49.2, testclock::registry):
-	Adjusted tests to simulate new US rules.
-	* library/tzdata/America/Indiana/Winamac:
-	* library/tzdata/Europe/Istanbul:
-	* library/tzdata/Pacific/Easter:
-	Olson's tzdata2007c.
-
-2007-03-05  Andreas Kupries  <andreask@activestate.com>
-
-	* library/platform/shell.tcl (::platform::shell::RUN): In the case of
-	* library/platform/pkgIndex.tcl: a failure put the captured stderr
-	* unix/Makefile.in: into the error message to aid in debugging. Bumped
-	* win/Makefile.in: package version to 1.1.2, and updated the makefiles
-	installing it as Tcl Module.
-
-2007-03-03  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclLink.c (LinkedVar): Added macro to conceal at least some
-	of the pointer hackery.
-
-2007-03-02  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCmdIL.c (Tcl_LreverseObjCmd):	Added missing
-	TclInvalidateStringRep() call when we directly manipulate the intrep
-	of an unshared "list" Tcl_Obj. [Bug 1672585]
-
-	* generic/tclCmdIL.c (Tcl_JoinObjCmd):	Revised [join] implementation
-	to append Tcl_Obj's instead of strings. [RFE 1669420]
-
-	* generic/tclCmdIL.c (Info*Cmd):	Code simplifications and
-	optimizations.
-
-2007-03-02  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclCompile.c (TclPrintInstruction): Added a scheme to allow
-	* generic/tclCompile.h (AuxDataPrintProc):    aux-data to be printed
-	* generic/tclCompCmds.c (Print*Info):	      out for debugging. For
-	this to work, immediate operands referring to aux-data must be
-	identified as such in the instruction descriptor table using
-	OPERAND_AUX4 (all are always 4 bytes).
-
-	* generic/tclExecute.c (TclExecuteByteCode): Rewrote the compiled
-	* generic/tclCompCmds.c (TclCompileDictCmd): [dict update] so that it
-	* generic/tclCompile.h (DictUpdateInfo):     stores critical
-	* tests/dict.test (dict-21.{14,15}):	     non-varying data in an
-	aux-data value instead of a (shimmerable) literal. [Bug 1671001]
-
-2007-03-01  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCmdIL.c (Tcl_LinsertObjCmd):	Code simplifications
-	and optimizations.
-
-	* generic/tclCmdIL.c (Tcl_LreplaceObjCmd):	Code simplifications
-	and optimizations.
-
-	* generic/tclCmdIL.c (Tcl_LrangeObjCmd):	Rewrite in the same
-	spirit; avoid shimmer effects rather than react to them.
-
-	* generic/tclCmdAH.c (Tcl_ForeachObjCmd):	Stop throwing away
-	* tests/foreach.test (foreach-1.14):	useful error information when
-	loop variable sets fail.
-
-	* generic/tclCmdIL.c (Tcl_LassignObjCmd):	Rewrite to make an
-	efficient private copy of the list argument, so we can operate on the
-	list elements directly with no fear of shimmering effects. Replaces
-	defensive coding schemes that are otherwise required.
-
-	* generic/tclCmdAH.c (Tcl_ForeachObjCmd):	Rewrite to make
-	efficient private copies of the variable and value lists, so we can
-	operate on them without any special shimmer defense coding schemes.
-
-2007-03-01  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclCompCmds.c (TclCompileForeachCmd): Prevent an unexpected
-	* tests/foreach.test (foreach-9.1):		infinite loop when the
-	variable list is empty and the foreach is compiled. [Bug 1671138]
-
-2007-02-26  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIORChan.c (FreeReflectedChannel): Added the missing
-	refcount release between NewRC and FreeRC for the channel handle
-	object, spotted by Don Porter. [Bug 1667990]
-
-2007-02-26  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCmdAH.c (Tcl_ForeachObjCmd):	Removed surplus
-	copying of the objv array that used to be a workaround for [Bug
-	404865]. That bug is long fixed.
-
-2007-02-24  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Use new interface in Tcl_EvalObjEx so that the
-	recounting logic of the List internal rep need not be repeated there.
-	Better encapsulation of internal details.
-
-	* generic/tclInt.h:	New internal routine TclListObjCopy() used
-	* generic/tclListObj.c: to efficiently do the equivalent of [lrange
-	$list 0 end]. After some experience with this, might be a good
-	candidate for exposure as a public interface. It's useful for callers
-	of Tcl_ListObjGetElements() who want to control the ongoing validity
-	of the returned objv pointer.
-
-2007-02-22  Andreas Kupries  <andreask@activestate.com>
-
-	* tests/pkg.test: Added tests for the case of an alpha package
-	satisfying a require for the regular package, demonstrating a corner
-	case specified in TIP#280. More notes in the comments to the test.
-
-2007-02-20  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclInt.decls: Added "const" specifiers in TclSockGetPort
-	* generic/tclIntDecls.h: regenerated
-	* generic/*.c:
-	* unix/tclUnixChan.c
-	* unix/tclUnixPipe.c
-	* win/tclWinPipe.c
-	* win/tclWinSock.c: Added many "const" specifiers in implementation.
-
-2007-02-20  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/tcltest.n:	Typo fix. [Bug 1663539]
-
-2007-02-20  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* generic/tclFileName.c:  Handle extended paths on Windows NT and
-	* generic/tclPathObj.c:	  above. These have a \\?\ prefix. [Bug
-	* win/tclWinFile.c:	  1479814]
-	* tests/winFCmd.test:	  Tests for extended path handling.
-
-2007-02-19  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* unix/tcl.m4: use SHLIB_SUFFIX=".so" on HP-UX ia64 arch.
-	* unix/configure: autoconf-2.59
-
-	* generic/tclIOUtil.c (Tcl_FSEvalFileEx): safe incr of objPtr ref.
-
-2007-02-18  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/chan.n, doc/clock.n, doc/eval.n, doc/exit.n, doc/expr.n:
-	* doc/interp.n, doc/open.n, doc/platform_shell.n, doc/pwd.n:
-	* doc/refchan.n, doc/regsub.n, doc/scan.n, doc/tclvars.n, doc/tm.n:
-	* doc/unload.n: Apply [Bug 1610310] to fix typos. Thanks to Larry
-	Virden for spotting them.
-
-	* doc/interp.n: Partial fix of [Bug 1662436]; rest requires some
-	policy decisions on what should and shouldn't be safe commands from
-	the "new in 8.5" set.
-
-2007-02-13  Kevin B. Kenny  <kennykb@acm.org>
-
-	* tools/fix_tommath_h.tcl: Further tweaking for the x86-64. The change
-	is to make 'mp_digit' be an 'unsigned int' on that platform; since
-	we're using only 32 bits of it, there's no reason to make it a 64-bit
-	'unsigned long.'
-	* generic/tclTomMath.h: Regenerated.
-
-2007-02-13  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/re_syntax.n: Corrected description of 'print' class [Bug
-	1614687] and enhanced description of 'graph' class.
-
-2007-02-12  Kevin B. Kenny  <kennykb@acm.org>
-
-	* tools/fix_tommath_h.tcl: Added code to patch out a check for
-	__x86_64__ that caused Tommath to use __attributes(TI)__ for the
-	mp_word type. Tetra-int's simply fail on too many gcc-glibc-OS
-	combinations to be ready for shipment today, even if they work for
-	some of us. This change allows reversion of das's change of 2006-08-18
-	that accomplised the same thing on Darwin. [Bugs 1601380, 1603737,
-	1609936, 1656265]
-	* generic/tclTomMath.h: Regenerated.
-	* library/tzdata/Africa/Asmara:
-	* library/tzdata/Africa/Asmera:
-	* library/tzdata/America/Nassau:
-	* library/tzdata/Atlantic/Faeroe:
-	* library/tzdata/Atlantic/Faroe:
-	* library/tzdata/Australia/Eucla:
-	* library/tzdata/Pacific/Easter: Rebuilt from Olson's tzdata2007b.
-
-2007-02-09  Joe Mistachkin  <joe@mistachkin.com>
-
-	* win/nmakehlp.c: Properly cleanup after nmakehlp, including the
-	* win/makefile.vc: vcX0.pch file.
-
-2007-02-08  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* unix/tclUnixInit.c (TclpCheckStackSpace): do stack size checks with
-	unsigned size_t to correctly validate stackSize in the 2^31+ range.
-	[Bug 1654104]
-
-2007-02-08  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclNamesp.c:	Corrected broken logic in Tcl_DeleteNamespace
-	* tests/namespace.test: introduced in Patch 1577278 that caused
-	[namespace delete ::] to be effective only at level #0. New test
-	namespace-7.7 should prevent similar error in the future [Bug 1655305]
-
-2007-02-06  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclNamesp.c:	Corrected broken implementation of the
-	* tests/namespace.test: TclMatchIsTrivial optimization on [namespace
-	children $namespace $pattern].
-
-2007-02-04  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tcl.m4: use gcc4's __attribute__((__visibility__("hidden"))) if
-	available to define MODULE_SCOPE effective on all platforms.
-	* unix/configure.in: add caching to -pipe and zoneinfo checks.
-	* unix/configure: autoconf-2.59
-	* unix/tclConfig.h.in: autoheader-2.59
-
-2007-02-03  Joe Mistachkin  <joe@mistachkin.com>
-
-	* win/rules.vc: Fix platform specific file copy macros for downlevel
-	Windows.
-
-2007-01-29  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclResult.c: Added optimization case to TclTransferResult to
-	cover common case where there's big savings over the fully general
-	path. Thanks to Peter MacDonald. [Bug 1626518]
-
-	* generic/tclLink.c:	Broken linked float logic corrected. Thanks to
-	Andy Goth. [Bug 1602538]
-
-	* doc/fcopy.n:	Typo fix. [Bug 1630627]
-
-2007-01-28  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Tcl.xcodeproj/project.pbxproj:	  extract build settings that
-	* macosx/Tcl.xcodeproj/default.pbxuser:	  were common to multiple
-	* macosx/Tcl-Common.xcconfig (new file):  configurations into external
-	* macosx/Tcl-Debug.xcconfig (new file):	  xcconfig files; add extra
-	* macosx/Tcl-Release.xcconfig (new file): configurations for building
-	with SDKs and 64bit; convert legacy jam-based 'Tcl' target to native
-	target with single script phase; correct syntax of build setting
-	references to use $() throughout.
-
-	* macosx/README: document new Tcl.xcodeproj configurations; other
-	minor updates/corrections.
-
-	* generic/tcl.h: update location of version numbers in macosx files.
-
-	* macosx/Tcl.xcode/project.pbxproj: restore 'tcltest' target to
-	* macosx/Tcl.xcode/default.pbxuser: working order by replicating
-	applicable changes to Tcl.xcodeproj since 2006-07-20.
-
-2007-01-25  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tcl.m4: integrate CPPFLAGS into CFLAGS as late as possible and
-	move (rather than duplicate) -isysroot flags from CFLAGS to CPPFLAGS
-	to avoid errors about multiple -isysroot flags from some older gcc
-	builds.
-
-	* unix/configure: autoconf-2.59
-
-2007-01-22  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* compat/memcmp.c (memcmp): Reworked so that arithmetic is never
-	performed upon void pointers, since that is illegal. [Bug 1631017]
-
-2007-01-19  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclCompile.c (TclCompileScript): Reduce the frequency with
-	which we issue INST_START_CMD, making bytecode both more compact and
-	somewhat faster. The optimized case is where we would otherwise be
-	issuing a sequence of those instructions; in those cases, it is only
-	ever the first one encountered that could possibly trigger.
-
-2007-01-19  Joe Mistachkin  <joe@mistachkin.com>
-
-	* tools/man2tcl.c: Include stdlib.h for exit() and improve comment
-	detection.
-	* win/nmakehlp.c: Update usage.
-	* win/makefile.vc: Properly build man2tcl.c for MSVC8.
-
-2007-01-19  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/tclMacOSXFCmd.c (TclMacOSXSetFileAttribute): on some versions
-	of Mac OS X, truncate() fails on resource forks, in that case use
-	open() with O_TRUNC instead.
-
-	* macosx/tclMacOSXNotify.c: accommodate changes to prototypes of
-	OSSpinLock(Un)Lock API.
-
-	* macosx/Tcl.xcodeproj/project.pbxproj: ensure HOME and USER env vars
-	* macosx/Tcl.xcodeproj/default.pbxuser: are defined when running
-						testsuite from Xcode.
-
-	* tests/env.test: add extra system env vars that need to be preserved
-	on some Mac OS X versions for testsuite to work.
-
-	* unix/Makefile.in:  Move libtommath defines into configure.in to
-	* unix/configure.in: avoid replicating them across multiple
-	* macosx/Tcl.xcodeproj/project.pbxproj: buildsystems.
-
-	* unix/tcl.m4: ensure CPPFLAGS env var is used when set. [Bug 1586861]
-	(Darwin): add -isysroot and -mmacosx-version-min flags to CPPFLAGS
-	when present in CFLAGS to avoid discrepancies between what headers
-	configure sees during preprocessing tests and compiling tests.
-
-	* unix/configure: autoconf-2.59
-	* unix/tclConfig.h.in: autoheader-2.59
-
-2007-01-18  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclCompile.c (TclCompileScript): Make sure that when parsing
-	an expanded literal fails, a correct bytecode sequence is still
-	issued. [Bug 1638414]. Also make sure that the start of the expansion
-	bytecode sequence falls inside the span of bytecodes for a command.
-	* tests/compile.test (compile-16.24): Added test for [Bug 1638414]
-
-2007-01-17  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclIO.c: Added macros to make usage of ChannelBuffers
-	clearer.
-
-2007-01-11  Joe English	 <jenglish@users.sourceforge.net>
-
-	* win/tcl.m4(CFLAGS_WARNING): Remove "-Wconversion". This was removed
-	from unix/tcl.m4 2004-07-16 but not from here.
-	* win/configure: Regenerated.
-
-2007-01-11  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* win/makefile.vc: Fixes to work better on Win98. Read version numbers
-	* win/nmakehlp.c:  from package index file to avoid keeping numbers in
-	* win/rules.vc:	   the makefile where they may become de-synchronized.
-
-2007-01-10  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/regcomp.c (compile, freev):	     Define a strategy for
-	* generic/regexec.c (exec):		     managing the internal
-	* generic/regguts.h (AllocVars, FreeVars):   vars of the RE engine to
-	* generic/regcustom.h (AllocVars, FreeVars): reduce C stack usage.
-	This will make Tcl as a whole much less likely to run out of stack
-	space...
-
-2007-01-09  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclCompCmds.c (TclCompileLindexCmd):
-	* tests/lindex.test (lindex-9.2): Fix silly bug that ended up
-	sometimes compiling list arguments in the wrong order. [Bug 1631364]
-
-2007-01-03  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclDate.c: Regenerated to recover a lost fix from patthoyts.
-	[Bug 1618523]
-
-2006-12-26  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tclIO.c (Tcl_GetsObj): Avoid checking for for the LF in a
-	possible CRLF sequence when EOF has already been found.
-
-2006-12-26  Mo DeJong  <mdejong@users.sourceforge.net>
-
-	* generic/tclEncoding.c (EscapeFromUtfProc): Clear the
-	TCL_ENCODING_END flag when end bytes are written. This fix keep this
-	method from writing escape bytes for an encoding like iso2022-jp
-	multiple times when the escape byte overlap with the end of the IO
-	buffer.
-	* tests/io.test: Add test for escape byte overlap issue.
-
-2006-12-19  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* unix/tclUnixThrd.c (Tcl_GetAllocMutex, TclpNewAllocMutex): Add
-	intermediate variables to shut up unwanted warnings. [Bug 1618838]
-
-2006-12-19  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tclUnixThrd.c (TclpInetNtoa): fix for 64 bit.
-
-	* unix/tcl.m4 (Darwin): --enable-64bit: verify linking with 64bit
-	-arch flag succeeds before enabling 64bit build.
-	* unix/configure: autoconf-2.59
-
-2006-12-17  Daniel Steffen  <das@users.sourceforge.net>
-
-	* tests/macOSXLoad.test (new file): add testing of .bundle loading and
-	* tests/load.test:		    unloading on Darwin (in addition
-	* tests/unload.test:		    to existing tests of .dylib
-	loading).
-	* macosx/Tcl.xcodeproj/project.pbxproj: add building of dltest
-	binaries so that testsuite run from Xcode can use them; fix testsuite
-	run script
-	* unix/configure.in:	   add support for building dltest binaries as
-	* unix/dltest/Makefile.in: .bundle (in addition to .dylib) on Darwin.
-	* unix/Makefile.in: add stub lib dependency to dltest target.
-	* unix/configure: autoconf-2.59
-
-	* tests/append.test: fix cleanup failure when all tests are skipped.
-
-	* tests/chan.test (chan-16.9): cleanup chan event handler to avoid
-	causing error in event.test when running testsuite with -singleproc 1.
-
-	* tests/info.test: add !singleTestInterp constraint to tests that fail
-	when running testsuite with -singleproc 1. [Bug 1605269]
-
-2006-12-14  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* doc/string.n: Fix example. [Bug 1615277]
-
-2006-12-12  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Now that the new internal structs are
-	in use to support operator commands, might as well make them the
-	default for [expr] as well and avoid passing every parsed expression
-	through the inefficient Tcl_Token array format. This addresses most
-	issues in [RFE 1517602]. Assuming no performance disasters result from
-	this, much dead code supporting the other implementation might now be
-	removed.
-
-	* generic/tclBasic.c:	Final step routing all direct evaluation forms
-	* generic/tclCompExpr.c: of the operator commands through TEBC,
-	* generic/tclCompile.h: dropping all the routines in tclMathOp.c.
-	* generic/tclMathOp.c:	Still needs Engineering Manual attention.
-
-2006-12-11  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Another step with all sorting operator
-	* generic/tclCompExpr.c: commands now routing through TEBC via
-	* generic/tclCompile.h: TclSortingOpCmd().
-
-2006-12-08  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	 Another step down the path of re-using
-	* generic/tclCompExpr.c: TclExecuteByteCode to implement the TIP 174
-	* generic/tclCompile.h: commands instead of using a mass of code
-	* generic/tclMathOp.c:	duplication. Now all operator commands that
-	* tests/mathop.test:	demand exactly one operation are implemented
-	via TclSingleOpCmd and a call to TEBC.
-
-	* generic/tclCompExpr.c: Revised implementation of TclInvertOpCmd to
-	* generic/tclMathOp.c:	perform a bytecode compile / execute sequence.
-	This demonstrates a path toward avoiding mountains of code duplication
-	in tclMathOp.c and tclExecute.c.
-
-	* generic/tclCompile.h: Change TclExecuteByteCode() from static to
-	* generic/tclExecute.c: MODULE_SCOPE so all files including
-	tclCompile.h may call it.
-
-	* generic/tclMathOp.c:	More revisions to make tests pass.
-	* tests/mathop.test:
-
-2006-12-08  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclNamesp.c (TclTeardownNamespace): Ensure that dying
-	namespaces unstitch themselves from their referents. [Bug 1571056]
-	(NsEnsembleImplementationCmd): Silence GCC warning.
-
-	* tests/mathop.test: Full tests for & | and ^ operators
-
-2006-12-08  Daniel Steffen  <das@users.sourceforge.net>
-
-	* library/tcltest/tcltest.tcl: use [info frame] for "-verbose line".
-
-2006-12-07  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompCmds.c:	Additional commits correct most
-	* generic/tclExecute.c:		failing tests illustrating bugs
-	* generic/tclMathOp.c:		uncovered in [Patch 1578137].
-
-	* generic/tclBasic.c:	Biggest source of TIP 174 failures was that
-	the commands were not [namespace export]ed from the ::tcl::mathop
-	namespace. More bits from [Patch 1578137] correct that.
-
-	* tests/mathop.test:	Commmitted several new tests from Peter Spjuth
-	found in [Patch 1578137]. Many failures now demonstrate issues to fix
-	in the TIP 174 implementation.
-
-2006-12-07  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* tests/mathop.test: Added tests for ! ~ eq operators.
-	* generic/tclMathOp.c (TclInvertOpCmd): Add in check for non-integral
-	numeric values.
-	* generic/tclCompCmds.c (CompileCompareOpCmd): Factor out the code
-	generation for the chained comparison operators.
-
-2006-12-07  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* tests/exec.test: Fixed line endings (caused win32 problems).
-
-2006-12-06  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompCmds.c:	Revised and consolidated into utility
-	* tests/mathop.test:		routines some of routines that compile
-	the new TIP 174 commands. This corrects some known bugs. More to come.
-
-2006-12-06  Kevin B. Kenny  <kennykb@acm.org>
-
-	* tests/expr.test (expr-47.12): Improved error reporting in hopes of
-	having more information to pursue [Bug 1609936].
-
-2006-12-05  Andreas Kupries  <andreask@activestate.com>
-
-	TIP#291 IMPLEMENTATION
-
-	* generic/tclBasic.c: Define tcl_platform element for pointerSize.
-	* doc/tclvars.n:
-
-	* win/Makefile.in: Added installation instructions for the platform
-	* win/makefile.vc: package. Added the platform package.
-	* win/makefile.bc:
-	* unix/Makefile.in:
-
-	* tests/platform.test:
-	* tests/safe.test:
-
-	* library/platform/platform.tcl:
-	* library/platform/shell.tcl:
-	* library/platform/pkgIndex.tcl:
-
-	* doc/platform.n:
-	* doc/platform_shell.n:
-
-2006-12-05  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclPkg.c:	When no requirements are supplied to a
-	* tests/pkg.test:	[package require $pkg] and [package unknown]
-	is invoked to find a satisfying package, pass the requirement argument
-	"0-" (which means all versions are acceptable). This permits a
-	registered [package unknown] command to call [package vsatisfies
-	$testVersion {*}$args] without any special handling of the empty $args
-	case. This fixes/avoids a bug in [::tcl::tm::UnknownHandler] that was
-	causing old TM versions to be provided in preference to newer TM
-	versions. Thanks to Julian Noble for discovering the issue.
-
-2006-12-04  Donal K. Fellows  <dkf@users.sf.net>
-
-	TIP#267 IMPLEMENTATION
-
-	* generic/tclIOCmd.c (Tcl_ExecObjCmd): Added -ignorestderr option,
-	* tests/exec.test, doc/exec.n:	       loosely from [Patch 1476191]
-
-2006-12-04  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Added implementation for the
-	CompileExprTree() routine that can produce expression bytecode
-	directly from internal structures with no need to pass through the
-	Tcl_Token array representation. Still disabled by default. #undef
-	USE_EXPR_TOKENS to try it out.
-
-2006-12-03  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Added expr parsing routines that
-	produce a different set of internal structures representing the parsed
-	expression, as well as routines that go on to convert those structures
-	into the traditional Tcl_Token array format. Use of these routines is
-	currently disabled. #undef PARSE_DIRECT_EXPR_TOKENS to enable them.
-	These routines will only become really useful when more routines that
-	compile directly from the new internal structures are completed.
-
-2006-12-02  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/file.n: Clarification of [file pathtype] docs. [Bug 1606454]
-
-2006-12-01  Kevin B. Kenny	 <kennykb@acm.org>
-
-	* libtommath/bn_mp_add.c:	Corrected the effects of a
-	* libtommath/bn_mp_div.c:	bollixed 'cvs merge' operation
-	* libtommath/bncore.c:		that inadvertently committed some
-	* libtommath/tommath_class.h:	half-developed code.
-
-	TIP#299 IMPLEMENTATION
-
-	* doc/mathfunc.n:	Added isqrt() function to docs
-	* generic/tclBasic.c:	Added isqrt() math function (ExprIsqrtFunc)
-	* tests/expr.test (expr-47.*): Added tests for isqrt()
-	* tests/info.test (info-20.2): Added isqrt() to expected math funcs.
-
-2006-12-01  Don Porter	<dgp@users.sourceforge.net>
-
-	* tests/chan.test:	Correct timing sensitivity in new test. [Bug
-	1606860]
-
-	TIP#287 IMPLEMENTATION
-
-	* doc/chan.n:		New subcommand [chan pending].
-	* generic/tclBasic.c:	Thanks to Michael Cleverly for proposal
-	* generic/tclInt.h:	and implementation.
-	* generic/tclIOCmd.c:
-	* library/init.tcl:
-	* tests/chan.test:
-	* tests/ioCmd.test:
-
-	TIP#298 IMPLEMENTATION
-
-	* generic/tcl.decls: Tcl_GetBignumAndClearObj -> Tcl_TakeBignumFromObj
-	* generic/tclObj.c:
-
-	* generic/tclDecls.h:	make genstubs
-	* generic/tclStubInit.c:
-
-	* generic/tclExecute.c: Update callers.
-	* generic/tclMathOp.c:
-
-2006-11-30  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata: Olson's tzdata2006p.
-	* libtommath/bn_mp_sqrt.c: Fixed a bug where the initial approximation
-	to the square root could be on the wrong side, causing failure of
-	convergence.
-
-2006-11-29  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c (Tcl_AppendObjToErrorInfo):  Added
-	Tcl_DecrRefCount() on the objPtr argument to plug memory leaks. This
-	makes the routine a consumer, which makes it easiest to use.
-
-2006-11-28  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclBasic.c: TIP #280 implementation.
-	* generic/tclCmdAH.c:
-	* generic/tclCmdIL.c:
-	* generic/tclCmdMZ.c:
-	* generic/tclCompCmds.c:
-	* generic/tclCompExpr.c:
-	* generic/tclCompile.c:
-	* generic/tclCompile.h:
-	* generic/tclExecute.c:
-	* generic/tclIOUtil.c:
-	* generic/tclInt.h:
-	* generic/tclInterp.c:
-	* generic/tclNamesp.c:
-	* generic/tclObj.c:
-	* generic/tclProc.c:
-	* tests/compile.test:
-	* tests/info.test:
-	* tests/platform.test:
-	* tests/safe.test:
-
-2006-11-27  Kevin B. Kenny  <kennykb@acm.org>
-
-	* unix/tclUnixChan.c (TclUnixWaitForFile):
-	* tests/event.test (event-14.*): Corrected a bug where
-	TclUnixWaitForFile would present select() with the wrong mask on an
-	LP64 machine if a fd number exceeds 32. Thanks to Jean-Luc Fontaine
-	for reporting and diagnosing. [Bug 1602208]
-
-2006-11-27  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c (TclIncrObj):	Correct failure to detect
-	floating-point increment values. Thanks to William Coleda [Bug
-	1602991]
-
-2006-11-26  Donal K. Fellows  <dkf@users.sf.net>
-
-	* tests/mathop.test, doc/mathop.n: More bits and pieces of the TIP#174
-	implementation. Note that the test suite is not yet complete.
-
-2006-11-26  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tcl.m4 (Linux): --enable-64bit support.	[Patch 1597389]
-	* unix/configure: autoconf-2.59			[Bug 1230558]
-
-2006-11-25  Donal K. Fellows  <dkf@users.sf.net>
-
-	TIP#174 IMPLEMENTATION
-
-	* generic/tclMathOp.c (new file): Completed the implementation of the
-	interpreted versions of all the tcl::mathop commands. Moved to a new
-	file to make tclCompCmds.c more focused in purpose.
-
-2006-11-23  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCompCmds.c (Tcl*OpCmd, TclCompile*OpCmd):
-	* generic/tclBasic.c (Tcl_CreateInterp): Partial implementation of
-	TIP#174; the commands are compiled, but (mostly) not interpreted yet.
-
-2006-11-22  Donal K. Fellows  <dkf@users.sf.net>
-
-	TIP#269 IMPLEMENTATION
-
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd): Implementation of the [string
-	* tests/string.test (string-25.*):	 is list] command, based on
-	* doc/string.n:				 work by Joe Mistachkin, with
-	enhancements by Donal Fellows for better failindex behaviour.
-
-2006-11-22  Don Porter	<dgp@users.sourceforge.net>
-
-	* tools/genWinImage.tcl (removed):	Removed two files used in
-	* win/README.binary (removed):	production of binary distributions
-	for Windows, a task we no longer perform. [Bug 1476980]
-	* generic/tcl.h:	Remove mention of win/README.binary in comment
-
-	* generic/tcl.h:	Moved TCL_REG_BOSONLY #define from tcl.h to
-	* generic/tclInt.h:	tclInt.h. Only know user is Expect, which
-	already #include's tclInt.h. No need to continue greater exposure.
-	[Bug 926500]
-
-2006-11-20  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclBasic.c (Tcl_CreateInterp, TclHideUnsafeCommands):
-	* library/init.tcl: Refactored the [chan] command's guts so that it
-	does not use aliases to global commands, making the code more robust.
-
-2006-11-17  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c (INST_EXPON):	Corrected crash on
-	[expr 2**(1<<63)]. Was operating on cleared bignum Tcl_Obj.
-
-2006-11-16  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/apply.n, doc/chan.n: Added examples.
-
-2006-11-15  Don Porter	<dgp@users.sourceforge.net>
-
-	TIP#270 IMPLEMENTATION
-
-	* generic/tcl.decls:		New public routines Tcl_ObjPrintf,
-	* generic/tclStringObj.c:	Tcl_AppendObjToErrorInfo, Tcl_Format,
-	* generic/tclInt.h:		Tcl_AppendLimitedToObj,
-	Tcl_AppendFormatToObj and Tcl_AppendPrintfToObj. Former internal
-	versions removed.
-
-	* generic/tclDecls.h:		make genstubs
-	* generic/tclStubInit.c:
-
-	* generic/tclBasic.c:		Updated callers.
-	* generic/tclCkalloc.c:
-	* generic/tclCmdAH.c:
-	* generic/tclCmdIL.c:
-	* generic/tclCmdMZ.c:
-	* generic/tclCompExpr.c:
-	* generic/tclCompile.c:
-	* generic/tclDictObj.c:
-	* generic/tclExecute.c:
-	* generic/tclIORChan.c:
-	* generic/tclIOUtil.c:
-	* generic/tclMain.c:
-	* generic/tclNamesp.c:
-	* generic/tclObj.c:
-	* generic/tclPkg.c:
-	* generic/tclProc.c:
-	* generic/tclStrToD.c:
-	* generic/tclTimer.c:
-	* generic/tclUtil.c:
-	* unix/tclUnixFCmd.c:
-
-	* tools/genStubs.tcl:	Updated script to no longer produce the
-	_ANSI_ARGS_ wrapper in generated declarations. Also revised to accept
-	variadic prototypes with more than one fixed argument. (This is
-	possible since TCL_VARARGS and its limitations are no longer in use).
-	* generic/tcl.h:	Some reordering so that macro definitions do
-	not interfere with the now _ANSI_ARGS_-less stub declarations.
-
-	* generic/tclDecls.h:		make genstubs
-	* generic/tclIntDecls.h:
-	* generic/tclIntPlatDecls.h:
-	* generic/tclPlatDecls.h:
-	* generic/tclTomMathDecls.h:
-
-2006-11-15  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/ChnlStack.3, doc/CrtObjCmd.3, doc/GetIndex.3, doc/OpenTcp.3:
-	* doc/chan.n, doc/fconfigure.n, doc/fcopy.n, doc/foreach.n:
-	* doc/history.n, doc/http.n, doc/library.n, doc/lindex.n:
-	* doc/lrepeat.n, doc/lreverse.n, doc/pkgMkIndex.n, doc/re_syntax.n:
-	Convert \fP to \fR so that man-page scrapers have an easier time.
-
-2006-11-14  Don Porter	<dgp@users.sourceforge.net>
-
-	TIP#261 IMPLEMENTATION
-
-	* generic/tclNamesp.c:	[namespace import] with 0 arguments
-	introspects the list of imported commands.
-
-2006-11-13  Kevin B. Kenny  <kennykb@users.sourceforge.net>
-
-	* generic/tclThreadStorage.c (Tcl_InitThreadStorage):
-	(Tcl_FinalizeThreadStorage): Silence a compiler warning about
-	presenting a volatile pointer to 'memset'.
-
-2006-11-13  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclIO.c:	When [gets] on a binary channel needs to use
-	the "iso8859-1" encoding, save a copy of that encoding per-thread to
-	avoid repeated freeing and re-loading of it from the file system. This
-	replaces the cached copy of this encoding that the platform
-	initialization code used to keep in pre-8.5 releases.
-
-2006-11-13  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Fix gcc warnings about 'cast to/from
-	* generic/tclEncoding.c:	pointer from/to integer of different
-	* generic/tclEvent.c:		size' on 64-bit platforms by casting
-	* generic/tclExecute.c:		to intermediate types
-	* generic/tclHash.c:		intptr_t/uintptr_t via new PTR2INT(),
-	* generic/tclIO.c:		INT2PTR(), PTR2UINT() and UINT2PTR()
-	* generic/tclInt.h:		macros. [Patch 1592791]
-	* generic/tclProc.c:
-	* generic/tclTest.c:
-	* generic/tclThreadStorage.c:
-	* generic/tclTimer.c:
-	* generic/tclUtil.c:
-	* unix/configure.in:
-	* unix/tclUnixChan.c:
-	* unix/tclUnixPipe.c:
-	* unix/tclUnixPort.h:
-	* unix/tclUnixTest.c:
-	* unix/tclUnixThrd.c:
-
-	* unix/configure: autoconf-2.59
-	* unix/tclConfig.h.in: autoheader-2.59
-
-2006-11-12  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclInt.h, generic/tclInt.decls: Transfer TclPtrMakeUpvar and
-	TclObjLookupVar to the internal stubs table.
-
-2006-11-10  Daniel Steffen  <das@users.sourceforge.net>
-
-	* tests/fCmd.test (fCmd-6.26): fix failure when env(HOME) path
-	contains symlinks.
-
-	* macosx/Tcl.xcodeproj/project.pbxproj: remove tclParseExpr.c; when
-	running testsuite from inside Xcdoe, skip stack-3.1 (it only fails
-	under those circumstances).
-
-	* unix/tcl.m4 (Darwin): suppress linker arch warnings when building
-	universal for both 32 & 64 bit and no 64bit CoreFoundation is
-	available; sync with tk tcl.m4 change.
-	* unix/configure.in: whitespace.
-	* unix/configure: autoconf-2.59
-
-2006-11-09  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclParseExpr.c (removed):	Moved all the code of
-	* generic/tclCompExpr.c:	tclParseExpr.c into tclCompExpr.c.
-	* unix/Makefile.in:	This sets the stage for expr compiling to work
-	* win/Makefile.in:	directly with the full parse tree structures,
-	* win/makefile.bc:	and not have to pass through the information
-	* win/makefile.vc:	lossy format of an array of Tcl_Tokens.
-	* win/tcl.dsp:
-
-2006-11-09  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	TIP#272 IMPLEMENTATION
-
-	* generic/tclCmdMZ.c (Tcl_StringObjCmd):    Implementation of the
-	* tests/string.test, tests/stringComp.test: [string reverse] command
-	* doc/string.n:				    from TIP#272.
-
-	* generic/tclCmdIL.c (Tcl_LreverseObjCmd): Implementation of the
-	* generic/tclBasic.c, generic/tclInt.h:	   [lreverse] command from
-	* tests/cmdIL.test (cmdIL-7.*):		   TIP#272.
-	* doc/lreverse.n:
-
-2006-11-08  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclIO.c, generic/tclPkg.c: Style & clarity rewrites.
-
-2006-11-07  Andreas Kupries  <andreask@activestate.com>
-
-	* unix/tclUnixFCmd.c (CopyFile): Added code to fall back to a
-	hardwired default block size should the filesystem report a bogus
-	value. [Bug 1586470]
-
-2006-11-04  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclStringObj.c:	Changed Tcl_ObjPrintf() response to an
-	invalid format specifier string. No longer panics; now produces an
-	error message as output.
-
-	TIP#274 IMPLEMENTATION
-
-	* generic/tclParseExpr.c:	Exponentiation operator is now right
-	* tests/expr.test:		associative. [Patch 1556802]
-
-2006-11-03  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclBasic.c (TEOVI): fix por possible leak of a Command in
-	the presence of execution traces that delete it.
-
-	* generic/tclBasic.c (TEOVI):
-	* tests/trace.test (trace-21.11): fix for [Bug 1590232], execution
-	traces may cause a second command resolution in the wrong namespace.
-
-2006-11-03  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* tests/event.test (event-11.5):	Rewrote tests to stop Tcl from
-	* tests/io.test (multiple tests):	opening sockets that are
-	* tests/ioCmd.test (iocmd-15.1,16,17):	reachable from outside hosts
-	* tests/iogt.test (__echo_srv__.tcl):	where not necessary. This is
-	* tests/socket.test (multiple tests):	noticably annoying on some
-	* tests/unixInit.test (unixInit-1.2):	systems (e.g., Windows).
-
-2006-11-02  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Tcl.xcodeproj/project.pbxproj: check autoconf/autoheader exit
-	status and stop build if they fail.
-
-2006-11-02  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* doc/ParseCmd.3, doc/Tcl.n, doc/eval.n, doc/exec.n:
-	* doc/fconfigure.n, doc/interp.n, doc/unknown.n:
-	* library/auto.tcl, library/init.tcl, library/package.tcl:
-	* library/safe.tcl, library/tm.tcl, library/msgcat/msgcat.tcl:
-	* tests/all.tcl, tests/basic.test, tests/cmdInfo.test:
-	* tests/compile.test, tests/encoding.test, tests/execute.test:
-	* tests/fCmd.test, tests/http.test, tests/init.test:
-	* tests/interp.test, tests/io.test, tests/ioUtil.test:
-	* tests/iogt.test, tests/namespace-old.test, tests/namespace.test:
-	* tests/parse.test, tests/pkg.test, tests/pkgMkIndex.test:
-	* tests/proc.test, tests/reg.test, tests/trace.test:
-	* tests/upvar.test, tests/winConsole.test, tests/winFCmd.test:
-	* tools/tclZIC.tcl:
-	* generic/tclParse.c (Tcl_ParseCommand): Replace {expand} with {*}
-	officially (TIP #293). Leave -DALLOW_EXPAND=0|1 option to keep
-	{expand} syntax for transition users. [Bug 1589629]
-
-2006-11-02  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclBasic.c, generic/tclInterp.c, generic/tclProc.c: Silence
-	warnings from gcc over signed/unsigned and TclStackAlloc().
-	* generic/tclCmdMZ.c: Update to more compact and clearer coding style.
-
-2006-11-02  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCmdAH.c:	Further revisions to produce the routines
-	* generic/tclInt.h:	TclFormat() and TclAppendFormatToObj() that
-	* generic/tclNamesp.c:	accept (objc, objv) arguments rather than
-	* generic/tclStringObj.c:	any varargs stuff.
-
-	* generic/tclBasic.c:	Further revised TclAppendPrintToObj() and
-	* generic/tclCkalloc.c: TclObjPrintf() routines to panic when unable
-	* generic/tclCmdAH.c:	to complete their formatting operations,
-	* generic/tclCmdIL.c:	rather than report an error message. This
-	* generic/tclCmdMZ.c:	means an interp argument for error message
-	* generic/tclDictObj.c: recording is no longer needed, further
-	* generic/tclExecute.c: simplifying the interface for callers.
-	* generic/tclIORChan.c:
-	* generic/tclIOUtil.c:
-	* generic/tclInt.h:
-	* generic/tclMain.c:
-	* generic/tclNamesp.c:
-	* generic/tclParseExpr.c:
-	* generic/tclPkg.c:
-	* generic/tclProc.c:
-	* generic/tclStringObj.c:
-	* generic/tclTimer.c:
-	* generic/tclUtil.c:
-	* unix/tclUnixFCmd.c:
-
-2006-11-02  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* tests/winPipe.test (winpipe-4.[2345]): Made robust when run in
-	directory with spaces in its name.
-
-	* generic/tclCmdAH.c: Clean up uses of cast NULLs.
-
-	* generic/tclInterp.c (AliasObjCmd): Added more explanatory comments.
-
-	* generic/tclBasic.c (TclEvalObjvInternal): Rewrote so that comments
-	are relevant and informative once more. Also made the unknown handler
-	processing use the Tcl execution stack for working space, and not the
-	general heap.
-
-2006-11-01  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tclUnixPort.h: ensure MODULE_SCOPE is defined before use, so
-	that tclPort.h can once again be included without tclInt.h.
-
-	* generic/tclEnv.c (Darwin): mark _environ symbol as unexported even
-	when MODULE_SCOPE != __private_extern__.
-
-2006-10-31  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Refactored and renamed the routines
-	* generic/tclCkalloc.c: TclObjPrintf, TclFormatObj, and
-	* generic/tclCmdAH.c:	TclFormatToErrorInfo to a new set of routines
-	* generic/tclCmdIL.c:	TclAppendPrintfToObj, TclAppendFormatToObj,
-	* generic/tclCmdMZ.c:	TclObjPrintf, and TclObjFormat, with the
-	* generic/tclDictObj.c: intent of making the latter list, plus
-	* generic/tclExecute.c: TclAppendLimitedToObj and
-	* generic/tclIORChan.c: TclAppendObjToErrorInfo, public via a revised
-	* generic/tclIOUtil.c:	TIP 270.
-	* generic/tclInt.h:
-	* generic/tclMain.c:
-	* generic/tclNamesp.c:
-	* generic/tclParseExpr.c:
-	* generic/tclPkg.c:
-	* generic/tclProc.c:
-	* generic/tclStringObj.c:
-	* generic/tclTimer.c:
-	* generic/tclUtil.c:
-	* unix/tclUnixFCmd.c:
-
-2006-10-31  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclBasic.c, generic/tcl.h, generic/tclInterp.c:
-	* generic/tclNamesp.c: removing the flag bit TCL_EVAL_NOREWRITE, the
-	last remnant of the callObjc/v fiasco. It is not needed, as it is now
-	always set and checked or'ed with TCL_EVAL_INVOKE.
-
-2006-10-31  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* win/rules.vc: Fix for [Bug 1582769] - options conflict with VC2003.
-
-2006-10-31  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclBasic.c, generic/tclNamesp.c, generic/tclProc.c:
-	* generic/tclInt.h: Removed the callObjc and callObjv fields from the
-	Interp structure. They did not function correctly and made other parts
-	of the core amazingly complex, resulting in a substantive change to
-	[info level] behaviour. [Bug 1587618]
-	* library/clock.tcl: Removed use of [info level 0] for calculating the
-	command name as used by the user and replace with a literal. What's
-	there now is sucky, but at least appears to be right to most users.
-	* tests/namespace.test (namespace-42.7,namespace-47.1): Reverted
-	changes to these tests.
-	* tests/info.test (info-9.11,info-9.12): Added knownBug constraint
-	since these tests require a different behaviour of [info level] than
-	is possible because of other dependencies.
-
-2006-10-30  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* tools/tcltk-man2html.tcl (option-toc): handle any kind of options
-	defined toc section (needed for ttk docs)
-
-2006-10-30  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclBasic.c (TEOVI): insured that the interp's callObjc/v
-	fields are restored after traces run, as they be spoiled. This was
-	causing a segfault in tcllib's profiler tests.
-
-2006-10-30  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c (INST_MOD): Corrected improper testing of the
-	* tests/expr.test:		   sign of bignums when applying Tcl's
-	division rules. Thanks to Peter Spjuth. [Bug 1585704]
-
-2006-10-29  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclNamesp.c (EnsembleImplementationCmd):
-	* tests/namespace.test (47.7-8): reverted a wrong "optimisation" that
-	completely broke snit; added two tests.
-
-2006-10-28  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclProc.c (ObjInterpProcEx, TclObjInterpProcCore): Split the
-	core of procedures to make it easier to build procedure-like code
-	without going through horrible contortions. This is the last critical
-	component to make advanced OO systems workable as simple loadable
-	extensions. TOIPC is now in the internal stub table.
-	(MakeProcError, MakeLambdaError): Refactored ProcessProcResultCode to
-	be simpler, some of which goes to TclObjInterpProcCore, and the rest
-	of which is now in these far simpler routines which just do errorInfo
-	stack generation for different types of procedure-like entity.
-	* tests/apply.test (apply-5.1): Updated to expect the more informative
-	form of message.
-
-2006-10-27  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclVar.c (HasLocalVars): New macro to make various bits and
-	pieces cleaner.
-
-	* generic/tclNamesp.c (TclSetNsPath): Expose SetNsPath() through
-	internal stubs table with semi-external name.
-
-	* generic/tclInt.h (CallFrame): Add a field for handling context data
-	for extensions (like object systems) that should be tied to a call
-	frame (and not a command or interpreter).
-
-	* generic/tclBasic.c (TclRenameCommand): Change to take CONST args;
-	they were only ever used in a constant way anyway, so this appears to
-	be a spot that was missed during TIP#27 work.
-
-2006-10-26  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclProc.c (SetLambdaFromAny): minor change, eliminate
-	redundant call to Tcl_GetString (thanks aku).
-
-	* generic/tclInterp.c (ApplyObjCmd):
-	* generic/tclNamesp.c (EnsembleImplementationCmd): replaced ckalloc
-	(heap) with TclStackAlloc (execution stack).
-
-2006-10-24  Miguel Sofer  <msofer@users.sf.net>
-
-	* tests/info.test (info-9.11-12): tests for [Bug 1577492]
-	* tests/apply.test (apply-4.3-5): tests for [Bug 1574835]
-
-	* generic/tclProc.c (ObjInterpProcEx): disable itcl hacks for calls
-	from ApplyObjCmd (islambda==1), as they mess apply's error messages
-	[Bug 1583266]
-
-2006-10-23  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclProc.c (ApplyObjCmd): fix wrong#args for apply by using
-	the ensemble rewrite engine. [Bug 1574835]
-	* generic/tclInterp.c (AliasObjCmd): previous commit missed usage of
-	TCL_EVAL_NOREWRITE for aliases.
-
-	* generic/tclBasic.c (TclEvalObjvInternal): removed redundant check
-	for ensembles. [Bug 1577628]
-
-	* library/clock.tcl (format, scan): corrected wrong # args messages to
-	* tests/clock.test (3.1, 34.1):	    make use of the new rewrite
-	capabilities of [info level]
-
-	* generic/tcl.h:	   Lets TEOV update the iPtr->callObj[cv] new
-	* generic/tclBasic.c:	   fields, except when the flag bit
-	* generic/tclInt.h:	   TCL_EVAL_NOREWRITE is present. These values
-	* generic/tclNamesp.c:	   are used by Tcl_PushCallFrame to initialise
-	* generic/tclProc.c:	   the frame's obj[cv] fields, and allows
-	* tests/namespace.test:	   [info level] to know and use ensemble
-	rewrites. [Bug 1577492]
-
-	***POTENTIAL INCOMPATIBILITY***
-	The return value from [info level 0] on interp alias calls is changed:
-	previously returned the target command (including curried values), now
-	returns the source - what was actually called.
-
-2006-10-23  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tcl.h:	   Modified the Tcl call stack so there is
-	* generic/tclBasic.c:	   always a valid CallFrame, even at level 0
-	* generic/tclCmdIL.c:	   [Patch 1577278]. Most of the changes
-	* generic/tclInt.h:	   involve removing tests for a NULL
-	* generic/tclNamesp.c:	   iPtr->(var)framePtr. There is now a
-	* generic/tclObj.c:	   CallFrame pushed at interp creation with a
-	* generic/tclProc.c:	   pointer to it stored in iPtr->rootFramePtr.
-	* generic/tclTrace.c:	   A second unused field in Interp is
-	* generic/tclVar.c:	   hijacked to enable further functionality,
-	currently unused (but with several FRQs depending on it).
-
-	***POTENTIAL INCOMPATIBILITY***
-	Any user that includes tclInt.h and needs to determine if it is
-	running at level 0 should change (iPtr->varFramePtr == NULL) to
-	(iPtr->varFramePtr == iPtr->rootFramePtr).
-
-2006-10-23  Don Porter	<dgp@users.sourceforge.net>
-
-	* README:		Bump version number to 8.5a6
-	* generic/tcl.h:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/README.binary:
-	* win/configure.in:
-
-	* unix/configure:	autoconf-2.59
-	* win/configure:
-
-2006-10-21  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tcl.h, generic/tclHash.c: Tcl_FindHashEntry now calls
-	Tcl_CreateHashEntry with a newPtr set to NULL: this would have caused
-	a segfault previously and eliminates duplicated code. A macro has been
-	added to tcl.h (only used when TCL_PRESERVE_BINARY_COMPATABALITY is
-	not set - i.e., not by default).
-
-2006-10-20  Reinhard Max  <max@tclers.tk>
-
-	* unix/configure.in: Added autodetection for OS-supplied timezone
-	* unix/Makefile.in:  files and configure switches to override the
-	* unix/configure:    detected default.
-
-2006-10-20  Daniel Steffen  <das@users.sourceforge.net>
-
-	*** 8.5a5 TAGGED FOR RELEASE ***
-
-	* tools/tcltk-man2html.tcl: add support for alpha & beta versions to
-	useversion glob pattern. [Bug 1579941]
-
-2006-10-18  Don Porter	<dgp@users.sourceforge.net>
-
-	* changes:		8.5a5 release date set
-
-	* doc/Encoding.3:	Missing doc updates (mostly Table of
-	* doc/Ensemble.3:	Contents) exposed by `make checkdoc`
-	* doc/FileSystem.3:
-	* doc/GetTime.3:
-	* doc/PkgRequire.3:
-
-2006-10-17  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclInterp.c (ApplyObjCmd): fixed bad error in 2006-10-12
-	commit: interp released too early. Spotted by mistachkin.
-
-2006-10-16  Miguel Sofer  <msofer@users.sf.net>
-
-	* tclProc.c (SetLambdaFromAny):
-	* tests/apply.test (9.1-9.2): plugged intrep leak [Bug 1578454],
-	found by mjanssen.
-
-2006-10-16  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclBasic.c: Moved TIP#219 cleanup to DeleteInterpProc.
-
-2006-10-16  Daniel Steffen  <das@users.sourceforge.net>
-
-	* changes: updates for 8.5a5 release.
-
-	* unix/tclUnixThrd.c (TclpThreadGetStackSize): Darwin: fix for main
-	thread, where pthread_get_stacksize_np() returns incorrect info.
-
-	* macosx/GNUmakefile: don't redo prebinding of non-prebound binaires.
-
-2006-10-16  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclPkg.c (ExactRequirement):	Plugged memory leak. Also
-	changed Tcl_Alloc()/Tcl_Free() calls to ckalloc()/ckfree() for easier
-	memory debugging in the future. [Bug 1568373]
-
-	* library/tcltest/tcltest.tcl:	Revise tcltest bump to 2.3a1.
-	* library/tcltest/pkgIndex.tcl: This permits more features to be
-	* unix/Makefile.in:	added to tcltest before we reach version 2.3.0
-	* win/Makefile.in:	best timed to match the release of Tcl 8.5.0.
-	* win/makefile.vc:	This also serves as a demo of TIP 268 features
-
-2006-10-13  Colin McCormack <coldstore@users.sf.net>
-
-	* win/tclWinFile.c: corrected erroneous attempt to protect against
-	NULL return from Tcl_FSGetNormalizedPath per [Bug 1548263] causing
-	[Bug 1575837].
-	* win/tclWinFile.c: alfredd supplied patch to fix [Bug 1575837]
-
-2006-10-13  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tclUnixThrd.c (TclpThreadGetStackSize): on Darwin, use
-	* unix/tcl.m4: pthread_get_stacksize_np() API to get thread stack size
-	* unix/configure: autoconf-2.59
-	* unix/tclConfig.h.in: autoheader-2.59
-
-2006-10-12  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclInterp.c (ApplyObjCmd):
-	* tests/interp.test (interp-14.5-10): made [interp alias] use the
-	ensemble rewrite machinery to produce better error messages [Bug
-	1576006]
-
-2006-10-12  David Gravereaux <davygrvy@pobox.com>
-
-	* win/nmakehlp.c: Replaced all wnsprintf() calls with snprintf().
-	wnsprintf was not in my shwlapi header file (VC++6)
-
-2006-10-11  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclPkg.c (Tcl_PackageRequireEx):	Corrected crash when
-	argument version=NULL passed in.
-
-2006-10-10  Don Porter	<dgp@users.sourceforge.net>
-
-	* changes:	Updates for 8.5a5 release.
-
-	* generic/tclNamespace.c (TclTeardownNamespace):  After the
-	commandPathSourceList of a namespace is cleared, set the
-	commandPathSourceList to NULL so we don't try to walk the list a
-	second time, possibly after it is freed. [Bug 1566526]
-	* tests/namespace.test (namespace-51.16):	Added test.
-
-2006-10-09  Miguel Sofer  <msofer@users.sf.net>
-
-	* doc/UpVar.3: brough the docs in accordance to the code. Ever since
-	8.0, Tcl_UpVar(2)? accepts TCL_NAMESPACE_ONLY as a flag value, and
-	var-3.4 tests for proper behaviour. The docs only allowed 0 and
-	TCL_GLOBAL_ONLY. [Bug 1574099]
-
-2006-10-09  Miguel Sofer  <msofer@users.sf.net>
-
-	* tests/*.test: updated all tests to refer explicitly to the global
-	variables ::errorInfo, ::errorCode, ::env and ::tcl_platform: many
-	were relying on the alternative lookup in the global namespace, that
-	feature is tested specifically in namespace and variable tests.
-
-	The modified testfiles are: apply.test, basic.test, case.test,
-	cmdIL.test, cmdMZ.test, compExpr-old.test, error.test, eval.test,
-	event.test, expr.test, fileSystem.test, for.test, http.test, if.test,
-	incr-old.test, incr.test, interp.test, io.test, ioCmd.test, load.test,
-	misc.test, namespace.test, parse.test, parseOld.test, pkg.test,
-	proc-old.test, set.test, switch.test, tcltest.test, thread.test,
-	var.test, while-old.test, while.test.
-
-2006-10-06  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* win/rules.vc: [Bug 1571954] avoid /RTCc flag with MSVC8
-
-2006-10-06  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* doc/binary.n:	       TIP #275: Support unsigned values in binary
-	* generic/tclBinary.c: command. Tests and documentation updated.
-	* tests/binary.test:
-
-2006-10-05  Andreas Kupries  <andreask@activestate.com>
-
-	* library/tm.tcl: Fixed bug in TIP #189 implementation, now allowing
-	'_' in module names.
-
-2006-10-05  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* library/http/http.tcl (http::geturl): only do geturl url rfc 3986
-	validity checking if $::http::strict is true (default true for 8.5).
-	[Bug 1560506]
-
-	* generic/tcl.h: note limitation on changing Tcl_UniChar size
-	* generic/tclEncoding.c (UtfToUnicodeProc, UnicodeToUtfProc):
-	* tests/encoding.test (encoding-16.1): fix alignment issues in
-	unicode <> utf conversion procs. [Bug 1122671]
-
-2006-10-05  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclVar.c (Tcl_LappendObjCmd):
-	* tests/append.test(4.21-22): fix for longstanding [Bug 1570718],
-	lappending nothing to non-list. Reported by lvirden
-
-2006-10-04  Kevin B. Kenny  <kennykb@acm.org>
-
-	* tzdata/: Olson's tzdata2006m.
-
-2006-10-01  Kevin B. Kenny  <kennykb@acm.org>
-
-	* tests/clock.test (clock-49.2): Removed a locale dependency that
-	caused a spurious failure in the German locale. [Bug 1567956]
-
-2006-10-01  Miguel Sofer  <msofer@users.sf.net>
-
-	* doc/Eval.3 (TclEvalObjv): added note on refCount management for the
-	elements of objv. [Bug 730244]
-
-2006-10-01  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* win/tclWinFile.c: Handle possible missing define.
-
-	* win/tclWinFile.c (TclpUtime): [Bug 1420432] file mtime fails for
-	* tests/cmdAH.test:		directories on windows
-
-	* tests/winFile.test: Handle Msys environment a little differently in
-	getuser function. [Bug 1567956]
-
-2006-09-30  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclUtil.c (Tcl_SplitList): optimisation, [Patch 1344747] by
-	dgp.
-
-	* generic/tclInt.decls:
-	* generic/tclInt.h:
-	* generic/tclIntDecls.h:
-	* generic/tclObj.c:
-	* generic/tclStubInit.c: added an internal function TclObjBeingDeleted
-	to provide info as to the reason for the loss of an internal rep. [FR
-	1512138]
-
-	* generic/tclCompile.c:
-	* generic/tclHistory.c:
-	* generic/tclInt.h:
-	* generic/tclProc.c: made Tcl_RecordAndEvalObj not call "history" if
-	it has been redefined to an empty proc, in order to reduce the noise
-	when debugging [FR 1190441]. Moved TclCompileNoOp from tclProc.c to
-	tclCompile.c
-
-2006-09-28  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclPkg.c (CompareVersions): Bugfix. Check string lengths
-	* tests/pkg.test: before comparison. The shorter string is the smaller
-	number. Added testcases as well. Interestingly all existing test cases
-	for vcompare compared numbers of the same length with each other. [Bug
-	1563836]
-
-2006-09-28  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclIO.c (Tcl_GetsObj): added two test'n'panic guards for
-	possible NULL derefs, [Bug 1566382] and coverity #33.
-
-2006-09-27  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c: Corrected error in INST_LSHIFT in the
-	* tests/expr.test:	calculation done to determine whether a shift
-	in the (long int) type is possible. The calculation had literal value
-	"1" where it needed a value "1L" to compute the correct result. Error
-	detected via testing with the math::bigfloat package [Bug 1567222]
-
-	* generic/tclPkg.c (CompareVersion):	Flatten strcmp() results to
-	{-1, 0, 1} to match expectations of CompareVersion() callers.
-
-2006-09-27  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/regc_color.c (singleton):
-	* generic/regc_cvec.c (addmcce):
-	* generic/regcomp.c (compile, dovec): the static function addmcce does
-	nothing when called with two NULL pointers; the only call is by
-	compile with two NULL pointers (regcomp.c #includes regc_cvec.c).
-	Large parts (all?) the code for mcce (multi character collating
-	element) that we do not use is ifdef'ed out with the macro
-	REGEXP_MCCE_ENABLE.
-	This silences coverity bugs 7, 16, 80
-
-	* generic/regc_color.c (uncolorchain):
-	* generic/regc_nfa.c (freearc): changed tests and asserts to
-	equivalent formulation, designed to avoid an explicit comparison to
-	NULL and satisfy coverity that 6 and 9 are not bugs.
-
-2006-09-27  Andreas Kupries  <andreask@activestate.com>
-
-	* tests/pkg.test: Added test for version comparison at the 32bit
-	boundary. [Bug 1563836]
-
-	* generic/tclPkg.c: Rewrote CompareVersion to perform string
-	comparison instead of numeric. This breaks through the 32bit limit on
-	version numbers. See code for details (handling of leading zeros,
-	signs, etc.). un-CONSTed some arguments of CompareVersions,
-	RequirementSatisfied, and AllRequirementsSatisfied. The new compare
-	modifies the string (temporary string terminators). All callers use
-	heap-allocated ver-intreps, so we are good with that. [Bug 1563836]
-
-2006-09-27  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclFileName.c (TclGlob): added a panic for a call with
-	TCL_GLOBMODE_TAILS and pathPrefix==NULL. This would cause a segfault,
-	as found by coverity #26.
-
-2006-09-26  Kevin B. Kenny  <kennykb@acm.org>
-
-	* doc/Encoding.3:	 Added covariant 'const' qualifier for the
-	* generic/tcl.decls:	 Tcl_EncodingType argument to
-	* generic/tclEncoding.c: Tcl_CreateEncoding. [Further TIP#27 work.]
-	* generic/tclDecls.h:	 Reran 'make genstubs'.
-
-2006-09-26  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* win/makefile.vc:  Additional compiler flags and amd64 support.
-	* win/nmakehlp.c:
-	* win/rules.vc:
-
-2006-09-26  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tcl.h:	As 2006-09-22 commit from Donal K. Fellows
-	demonstrates, "#define NULL 0" is just wrong, and as a quotable chat
-	figure observed, "If NULL isn't defined, we're not using a C compiler"
-	Improper fallback definition of NULL removed.
-
-2006-09-25  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* generic/tcl.h:	More fixing which struct stat to refer to.
-	* generic/tclGetDate.y: Some casts from time_t to int required.
-	* generic/tclTimer.c:	Tcl_Time structure members are longs.
-	* win/makefile.vc:	Support for varying compiler options
-	* win/rules.vc:		and build to platform-specific subdirs.
-
-2006-09-25  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c (Tcl_StackChannel): Fixed [Bug 1564642], aka
-	coverity #51. Extended loop condition, added checking for NULL to
-	prevent seg.fault.
-
-2006-09-25  Andreas Kupries  <andreask@activestate.com>
-
-	* doc/package.n: Fixed nits reported by Daniel Steffen in the TIP#268
-	changes.
-
-2006-09-25  Kevin B. Kenny   <kennykb@acm.org>
-
-	* generic/tclNotify.c (Tcl_DeleteEvents): Simplified the code in hopes
-	of making the invariants clearer and proving to Coverity that the
-	event queue memory is managed correctly.
-
-2006-09-25  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclNotify.c (Tcl_DeleteEvents): Make it clear what happens
-	when the event queue is mismanaged. [Bug 1564677], coverity bug #10.
-
-2006-09-24  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclParse.c (Tcl_ParseCommand): also return an error if
-	start==NULL and numBytes<0. This is coverity's bug #20
-
-	* generic/tclStringObj.c (STRING_SIZE): fix allocation for 0-length
-	strings. This is coverity's bugs #54-5
-
-2006-09-22  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclInt.h: Moved TIP#268's field 'packagePrefer' to the end
-	of the structure, for better backward compatibility.
-
-2006-09-22  Andreas Kupries  <andreask@activestate.com>
-
-	TIP#268 IMPLEMENTATION
-
-	* generic/tclDecls.h:	 Regenerated from tcl.decls.
-	* generic/tclStubInit.c:
-
-	* doc/PkgRequire.3: Documentation of extended API, extended testsuite.
-	* doc/package.n:
-	* tests/pkg.test:
-
-	* generic/tcl.decls: Implementation.
-	* generic/tclBasic.c:
-	* generic/tclConfig.c:
-	* generic/tclInt.h:
-	* generic/tclPkg.c:
-	* generic/tclTest.c:
-	* generic/tclTomMathInterface.c:
-	* library/init.tcl:
-	* library/package.tcl:
-	* library/tm.tcl:
-
-2006-09-22  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclThreadTest.c (TclCreateThread): Use NULL instead of 0 as
-	end-of-strings marker to Tcl_AppendResult; the difference matters on
-	64-bit machines. [Bug 1562528]
-
-2006-09-21  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclUtil.c:	Dropped ParseInteger() routine. TclParseNumber
-	covers the task just fine.
-
-2006-09-19  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclEvent.c (Tcl_VwaitObjCmd): Rewrite so that an exceeded
-	limit trapped in a vwait cannot cause a dangerous dangling trace.
-
-2006-09-19  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c (INST_EXPON):	Native type overflow detection
-	* tests/expr.test:	was completely broken. Falling back on use of
-	bignums for all non-trivial ** calculations until
-	native-type-constrained special cases can be done carefully and
-	correctly. [Bug 1561260]
-
-2006-09-15  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* library/http/http.tcl:      Change " " -> "+" url encoding mapping
-	* library/http/pkgIndex.tcl:  to " " -> "%20" as per RFC 3986.
-	* tests/http.test (http-5.1): bump http to 2.5.3
-	* unix/Makefile.in:
-	* win/Makefile.in:
-
-2006-09-12  Andreas Kupries  <andreask@activestate.com>
-
-	* unix/configure.in (HAVE_MTSAFE_GETHOST*): Modified to recognize
-	HP-UX 11.00 and beyond as having mt-safe implementations of the
-	gethost functions.
-	* unix/configure: Regenerated, using autoconf 2.59
-
-	* unix/tclUnixCompat.c (PadBuffer): Fixed bug in calculation of the
-	increment needed to align the pointer, and added documentation
-	explaining why the macro is implemented as it is.
-
-2006-09-11  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* win/rules.vc:	   Updated to install http, tcltest and msgcat as
-	* win/makefile.vc: Tcl Modules (as per Makefile.in).
-	* win/makefile.vc: Added tommath_(super)class headers.
-
-2006-09-11  Andreas Kupries  <andreask@activestate.com>
-
-	* unix/Makefile.in (install-libraries): Fixed typo tcltest 2.3.9 ->
-	2.3.0.
-
-2006-09-11  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tclUnixCompat.c: make compatLock static and only declare it
-	when it will actually be used; #ifdef parts of TSD that are not always
-	needed; adjust #ifdefs to cover all possible cases; fix whitespace.
-
-2006-09-11  Andreas Kupries  <andreask@activestate.com>
-
-	* tests/msgcat.test: Bumped version in auxiliary files as well.
-	* doc/msgcat.n:
-
-2006-09-11  Kevin B. Kenny  <kennykb@acm.org>
-
-	* unix/Makefile.in:	Bumped msgcat version to 1.4.2 to be
-	* win/Makefile.in:	consistent with dgp's commits of 2006-09-10.
-
-2006-09-11  Don Porter	<dgp@users.sourceforge.net>
-
-	* library/msgcat/msgcat.tcl:	Removed some unneeded [uplevel]s.
-
-2006-09-10  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c:		Corrected INST_EXPON flaw that treated
-	* tests/expr.test:		$x**1 as $x**3. [Bug 1555371]
-
-	* doc/tcltest.n:		Bump to version tcltest 2.3.0 to
-	* library/tcltest/pkgIndex.tcl: account for new "-verbose line"
-	* library/tcltest/tcltest.tcl:	feature.
-	* unix/Makefile.in:
-	* win/Makefile.in:
-	* win/makefile.bc:
-	* win/makefile.vc:
-
-	* library/msgcat/msgcat.tcl:	Bump to version msgcat 1.4.2 to
-	* library/msgcat/pkgIndex.tcl:	account for modifications.
-
-2006-09-10  Daniel Steffen  <das@users.sourceforge.net>
-
-	* library/msgcat/msgcat.tcl (msgcat::Init): on Darwin, add fallback of
-	* tests/msgcat.test:			    default msgcat locale to
-	* unix/tclUnixInit.c (TclpSetVariables):    current CFLocale
-	identifier if available (via private ::tcl::mac::locale global, set at
-	interp init when on Mac OS X 10.3 or later with CoreFoundation).
-
-	* library/tcltest/tcltest.tcl: add 'line' verbose level: prints source
-	* doc/tcltest.n:	       file line information of failing tests.
-
-	* macosx/Tcl.xcodeproj/project.pbxproj: add new tclUnixCompat.c file;
-	revise tests target to use new tcltest 'line' verbose level.
-
-	* unix/configure.in: add descriptions to new AC_DEFINEs for MT-safe.
-	* unix/tcl.m4: add caching to new SC_TCL_* macros for MT-safe wrappers
-	* unix/configure: autoconf-2.59
-	* unix/tclConfig.h.in: autoheader-2.59
-
-2006-09-08  Zoran Vasiljevic <vasiljevic@users.sourceforge.net>
-
-	* unix/tclUnixCompat.c: Added fallback to gethostbyname() and
-	gethostbyaddr() if the implementation is known to be MT-safe
-	(currently for Darwin 6 or later only).
-
-	* unix/configure.in: Assume gethostbyname() and gethostbyaddr() are
-	MT-safe starting with Darwin 6 (Mac OSX 10.2).
-
-	* unix/configure: Regenerated with autoconf V2.59
-
-2006-09-08  Andreas Kupries  <andreask@activestate.com>
-
-	* unix/tclUnixCompat.c: Fixed conditions for CopyArray/CopyString, and
-	CopyHostent. Also fixed bad var names in TclpGetHostByName.
-
-2006-09-07  Zoran Vasiljevic <vasiljevic@users.sourceforge.net>
-
-	* unix/tclUnixCompat.c: Added fallback to MT-unsafe library calls if
-	TCL_THREADS is not defined.
-	Fixed alignment of arrays copied by CopyArray() to be on the
-	sizeof(char *) boundary.
-
-2006-09-07  Zoran Vasiljevic <vasiljevic@users.sourceforge.net>
-
-	* unix/tclUnixChan.c:	Rewritten MT-safe wrappers to return ptrs to
-	* unix/tclUnixCompat.c: TSD storage making them all look like their
-	* unix/tclUnixFCmd.c:	MT-unsafe pendants API-wise.
-	* unix/tclUnixPort.h:
-	* unix/tclUnixSock.c:
-
-2006-09-06  Zoran Vasiljevic <vasiljevic@users.sourceforge.net>
-
-	* unix/tclUnixChan.c: Added TCL_THREADS ifdef'ed usage of MT-safe
-	* unix/tclUnixFCmd.c: calls like: getpwuid, getpwnam, getgrgid,
-	* unix/tclUnixSock.c: getgrnam, gethostbyname and gethostbyaddr.
-	* unix/tclUnixPort.h: See [Bug 999544]
-	* unix/Makefile.in:
-	* unix/configure.in:
-	* unix/tcl.m4:
-	* unix/configure: Regenerated.
-
-	* unix/tclUnixCompat.c: New file containing MT-safe implementation of
-	some library calls.
-
-2006-09-04  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Removed much complexity that is no
-	longer needed.
-
-	* tests/main.text (Tcl_Main-4.4):	Test corrected to not be
-	timing sensitive to the Bug 1481986 fix. [Bug 1550858]
-
-2006-09-04  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* doc/package.n: correct package example
-
-2006-08-31  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Corrected flawed logic for disabling
-	the INST_TRY_CVT_TO_NUMERIC instruction at the end of an expression
-	when function arguments contain operators. [Bug 1541274]
-
-	* tests/expr-old.test:	The remaining failing tests reported in
-	* tests/expr.test:	[Bug 1381715] are all new in Tcl 8.5, so
-	there's really no issue of compatibility with Tcl 8.4 result to deal
-	with. Fixed by updating tests to expect 8.5 results.
-
-2006-08-29  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclParseExpr.c:	Dropped the old expr parser.
-
-2006-08-30  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclBasic.c (Tcl_CreateInterp): init iPtr->threadId
-
-	* win/tclWinChan.c [Bug 819667] Improve logic for identifying COM
-	ports.
-
-	* generic/tclIOGT.c (ExecuteCallback):
-	* generic/tclPkg.c (Tcl_PkgRequireEx): replace Tcl_GlobalEval(Obj)
-	with more efficient Tcl_Eval(Obj)Ex
-
-	* unix/Makefile.in (valgrindshell): add valgrindshell target and
-	update default VALGRINDARGS. User can override, or add to it with
-	VALGRIND_OPTS env var.
-
-	* generic/tclFileName.c (DoGlob): match incrs with decrs.
-
-2006-08-29  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclParseExpr.c:	Use the "parent" field of orphan
-	ExprNodes to store the closure of left pointers. This lets us avoid
-	repeated re-scanning leftward for the left boundary of subexpressions,
-	which in worst case led to near O(N^2) runtime.
-
-2006-08-29  Joe Mistachkin  <joe@mistachkin.com>
-
-	* unix/tclUnixInit.c: Fixed the issue (typo) that was causing
-	* unix/tclUnixThrd.c (TclpThreadGetStackSize): stack.test to fail on
-	FreeBSD (and possibly other Unix platforms).
-
-2006-08-29  Colin McCormack  <coldstore@users.sourceforge.net>
-
-	* generic/tclIOUtil.c:	Added test for NULL return from
-	* generic/tclPathObj.c: Tcl_FSGetNormalizedPath which was causing
-	* unix/tclUnixFile.c:	segv's per [Bug 1548263]
-	* win/tclWinFCmd.c:
-	* win/tclWinFile.c:
-
-2006-08-28  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata/America/Havana:      Regenerated from Olson's
-	* library/tzdata/America/Tegucigalpa: tzdata2006k.
-	* library/tzdata/Asia/Gaza:
-
-2006-08-28  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclStringObj.c:	Revised ObjPrintfVA to take care to
-	* generic/tclParseExpr.c:	copy only whole characters when doing
-	%s formatting. This relieves callers of TclObjPrintf() and
-	TclFormatToErrorInfo() from needing to fix arguments to character
-	boundaries. Tcl_ParseExpr() simplified by taking advantage. [Bug
-	1547786]
-
-	* generic/tclStringObj.c:	Corrected TclFormatObj's failure to
-	count up the number of arguments required by examining the format
-	string. [Bug 1547681]
-
-2006-08-27  Joe Mistachkin  <joe@mistachkin.com>
-
-	* generic/tclClock.c (ClockClicksObjCmd): Fix nested macro breakage
-	with TCL_MEM_DEBUG enabled. [Bug 1547662]
-
-2006-08-26  Miguel Sofer  <msofer@users.sf.net>
-
-	* doc/namespace.n:
-	* generic/tclNamesp.c:
-	* tests/upvar.test: bugfix, docs clarification and new tests for
-	[namespace upvar] as follow up to [Bug 1546833], reported by Will
-	Duquette.
-
-2006-08-24  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata: Regenerated, including several new files, from
-	Olson's tzdata2006j.
-	* library/clock.tcl:
-	* tests/clock.test: Removed an early testing hack that allowed loading
-	'registry' from the build tree rather than an installed one. This is a
-	workaround for [Bug 15232730], which remains open because it's a
-	symptom of a deeper underlying problem.
-
-2006-08-23  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclParseExpr.c:	Minimal collection of new tests
-	* tests/parseExpr.test:		testing the error messages of the new
-	expr parser. Several bug fixes and code simplifications that appeared
-	during that effort.
-
-2006-08-21  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclIOUtil.c:	Revisions to complete the thread finalization
-	of the cwdPathPtr. [Bug 1536142]
-
-	* generic/tclParseExpr.c:	Revised mistaken call to
-	TclCheckBadOctal(), so both [expr 08] and [expr 08z] have same
-	additional info in error message.
-
-	* tests/compExpr-old.test:	Update existing tests to not fail with
-	* tests/compExpr.test:		the new expr parser.
-	* tests/compile.test:
-	* tests/expr-old.test:
-	* tests/expr.test:
-	* tests/for.test:
-	* tests/if.test:
-	* tests/parseExpr.test:
-	* tests/while.test:
-
-2006-08-21  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* win/Makefile.in (gdb): Make this target work so that debugging an
-	msys build is possible.
-
-2006-08-21  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/tclMacOSXNotify.c (Tcl_WaitForEvent): if the run loop is
-	already running (e.g. if Tcl_WaitForEvent was called recursively),
-	re-run it in a custom run loop mode containing only the source for the
-	notifier thread, otherwise wakeups from other sources added to the
-	common run loop modes might get lost.
-
-	* unix/tclUnixNotfy.c (Tcl_WaitForEvent): on 64-bit Darwin,
-	pthread_cond_timedwait() appears to have a bug that causes it to wait
-	forever when passed an absolute time which has already been exceeded
-	by the system time; as a workaround, when given a very brief timeout,
-	just do a poll on that platform. [Bug 1457797]
-
-	* generic/tclClock.c (ClockClicksObjCmd): add support for Darwin
-	* generic/tclCmdMZ.c (Tcl_TimeObjCmd):	  nanosecond resolution timer
-	* generic/tclInt.h:			  to [clock clicks] and [time]
-	* unix/configure.in (Darwin):		  when TCL_WIDE_CLICKS defined
-	* unix/tclUnixTime.c (TclpGetWideClicks, TclpWideClicksToNanoseconds):
-	* unix/configure: autoconf-2.59
-	* unix/tclConfig.h.in: autoheader-2.59
-
-	* unix/tclUnixPort.h (Darwin): override potentially faulty configure
-	detection of termios availability in all cases, since termios is known
-	to be present on all Mac OS X releases since 10.0. [Bug 497147]
-
-2006-08-18  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tcl.m4 (Darwin): add support for --enable-64bit on x86_64, for
-	universal builds including x86_64, for 64-bit CoreFoundation on
-	Leopard and for use of -mmacosx-version-min instead of
-	MACOSX_DEPLOYMENT_TARGET
-	* unix/configure: autoconf-2.59
-	* unix/tclConfig.h.in: autoheader-2.59
-
-	* generic/tcl.h:	  add fixes for building on Leopard and
-	* unix/tclUnixPort.h:	  support for 64-bit CoreFoundation on Leopard
-	* macosx/tclMacOSXFCmd.c:
-
-	* unix/tclUnixPort.h: on Darwin x86_64, disable use of vfork as it
-	causes execve to fail intermittently. (rdar://4685553)
-
-	* generic/tclTomMath.h: on Darwin 64-bit, for now disable use of
-	128-bit arithmetic through __attribute__ ((mode(TI))), as it leads to
-	link errors due to missing fallbacks. (rdar://4685527)
-
-	* macosx/Tcl.xcodeproj/project.pbxproj: add x86_64 to universal build,
-	switch native release targets to use DWARF with dSYM, Xcode 3.0
-	changes
-	* macosx/README: updates for x86_64 and Xcode 2.4.
-
-	* macosx/Tcl.xcodeproj/default.pbxuser: add test suite target that
-	* macosx/Tcl.xcodeproj/project.pbxproj: runs the tcl test suite at
-	build time and shows clickable test suite errors in the GUI build
-	window.
-
-	* tests/macOSXFCmd.test: fix use of deprecated resource fork paths.
-
-	* unix/tclUnixInit.c (TclpInitLibraryPath): move code that is only
-	needed when TCL_LIBRARY is defined to run only in that case.
-
-	* generic/tclLink.c (LinkTraceProc): fix 64-bit signed-with-unsigned
-	comparison warning from gcc4 -Wextra.
-
-	* unix/tclUnixChan.c (TclUnixWaitForFile): with timeout < 0, if
-	select() returns early (e.g. due to a signal), call it again instead
-	of returning a timeout result. Fixes intermittent event-13.8 failures.
-
-2006-08-17  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclCompile.c:		Revised the new set of expression
-	* generic/tclParseExpr.c:	parse error messages.
-
-2006-08-16  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclParseExpr.c:	Replace PrecedenceOf() function with
-	prec[] static array.
-
-2006-08-14  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* library/clock.tcl (::tcl::clock::add): Added missing braces to
-	clockval validation code. Pointed out on comp.lang.tcl.
-
-2006-08-11  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclNamesp.c: Improvements in buffer management to make
-	namespace creation faster. Plus selected other minor improvements to
-	code quality. [Patch 1352382]
-
-2006-08-10  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	Misc patches to make code more efficient. [Bug 1530474] (afredd)
-	* generic/*.c, macosx/tclMacOSXNotify.c, unix/tclUnixNotfy.c,
-	* win/tclWinThrd.c: Tidy up invokations of Tcl_Panic() to promote
-	string constant sharing and consistent style.
-	* generic/tclBasic.c (Tcl_CreateInterp): More efficient handling of
-	* generic/tclClock.c (TclClockInit):	 registration of commands not
-						 in global namespace.
-	* generic/tclVar.c (Tcl_UnsetObjCmd): Remove unreachable clause.
-
-2006-08-09  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclEncoding.c:	Replace buffer copy in for loop with
-	call to memcpy(). Thanks to afredd. [Patch 1530262]
-
-2006-08-09  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclCmdIL.c (Tcl_LassignObjCmd): Make the wrong#args message
-	a bit more consistent with those used elsewhere. [Bug 1534628]
-
-	* generic/tclDictObj.c (DictForCmd): Stop crash when attempting to
-	iterate over an invalid dictionary. [Bug 1531184]
-
-	* doc/ParseCmd.3, doc/expr.n, doc/set.n, doc/subst.n, doc/switch.n:
-	* doc/tclvars.n: Ensure that uses of [expr] in documentation examples
-	are also good style (with braces) unless otherwise necessary. [Bug
-	1526581]
-
-2006-08-03  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tclUnixPipe.c (TclpCreateProcess): for USE_VFORK: ensure
-	standard channels are initialized before vfork() so that the child
-	doesn't potentially corrupt global state in the parent's address space
-
-	* tests/compExpr-old.test: add 'oldExprParser' constraint to all tests
-	* tests/compExpr.test:	   that depend on the exact format of the
-	* tests/compile.test:	   error messages of the pre-2006-07-05
-	* tests/expr-old.test:	   expression parser. The constraint is on by
-	* tests/expr.test:	   default (i.e those tests still fail), but
-	* tests/for.test:	   can be turned off by passing '-constraints
-	* tests/if.test:	   newExprParser' to tcltest, which will skip
-	* tests/parseExpr.test:	   the 196 failing tests in the testsuite that
-	* tests/while.test:	   are caused by the new expression parser
-	error messages.
-
-2006-07-31  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclClock.c (ConvertLocalToUTCUsingC): Corrected a regression
-	that caused dates before 1969 to be one day off in the :localtime time
-	zone if TZ is not set. [Bug 1531530]
-
-2006-07-30  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclClock.c (GetJulianDayFromEraYearMonthDay): Corrected
-	several errors in converting dates before the Common Era [Bug 1426279]
-	* library/clock.tcl: Corrected syntax errors in generated code for %EC
-	%Ey, and %W format groups [Bug 1505383]. Corrected a bug in cache
-	management for format strings containing [glob] metacharacters [Bug
-	1494664]. Corrected several errors in formatting/scanning of years
-	prior to the Common Era, and added the missing %EE format group to
-	indicate the era.
-	* tools/makeTestCases.tcl: Added code to make sure that %U and %V
-	format groups are included in the tests. (The code depends on %U and
-	%V formatting working correctly when 'makeTestCases.tcl' is run,
-	rather than making a completely independent check.) Added tests for
-	[glob] metacharacters in strings. Added tests for years prior to the
-	Common Era.
-	* tests/clock.test: Rebuilt with new test cases for all the above.
-
-2006-07-30  Joe English	 <jenglish@users.sourceforge.net>
-
-	* doc/AppInit.3: Fix typo [Bug 1496886]
-
-2006-07-26  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c: Corrected flawed overflow detection in
-	* tests/expr.test:	INST_EXPON that caused [expr 2**64] to return
-	0 instead of the same value as [expr 1<<64].
-
-2006-07-24  Don Porter	<dgp@users.sourceforge.net>
-
-	* win/tclWinSock.c:	Correct un-initialized Tcl_DString. Thanks to
-	afredd. [Bug 1518166]
-
-2006-07-21  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c:
-	* tests/execute.test (execute-9.1): dgp's fix for [Bug 1522803].
-
-2006-07-20  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/tclMacOSXNotify.c (Tcl_InitNotifier, Tcl_WaitForEvent):
-	create notifier thread lazily upon first call to Tcl_WaitForEvent()
-	rather than in Tcl_InitNotifier(). Allows calling exeve() in processes
-	where the event loop has not yet been run (Darwin's execve() fails in
-	processes with more than one thread), in particular allows embedders
-	to call fork() followed by execve(), previously the pthread_atfork()
-	child handler's call to Tcl_InitNotifier() would immediately recreate
-	the notifier thread in the child after a fork.
-
-	* macosx/tclMacOSXFCmd.c (TclMacOSXCopyFileAttributes):	   add support
-	* macosx/tclMacOSXNotify.c (Tcl_InitNotifier):		   for weakly
-	* unix/tclUnixInit.c (Tcl_GetEncodingNameFromEnvironment): importing
-	symbols not available on OSX 10.2 or 10.3, enables binaires built on
-	later OSX versions to run on earlier ones.
-	* macosx/Tcl.xcodeproj/project.pbxproj: enable weak-linking; turn on
-						extra warnings.
-	* macosx/README: document how to enable weak-linking; cleanup.
-	* unix/tclUnixPort.h: add support for weak-linking; conditionalize
-	AvailabilityMacros.h inclusion; only disable realpath on 10.2 or
-	earlier when threads are enabled.
-	* unix/tclLoadDyld.c (TclpLoadMemoryGetBuffer): change runtime Darwin
-	* unix/tclUnixInit.c (TclpInitPlatform):	release check to use
-							global initialized
-							once
-	* unix/tclUnixFCmd.c (DoRenameFile, TclpObjNormalizePath): add runtime
-	Darwin release check to determine if realpath is threadsafe.
-	* unix/configure.in: add check on Darwin for compiler support of weak
-	* unix/tcl.m4:	     import and for AvailabilityMacros.h header; move
-	Darwin specific checks & defines that are only relevant to the tcl
-	build out of tcl.m4; restrict framework option to Darwin; clean up
-	quoting and help messages.
-	* unix/configure: autoconf-2.59
-	* unix/tclConfig.h.in: autoheader-2.59
-
-	* generic/regc_locale.c (cclass):
-	* generic/tclExecute.c (TclExecuteByteCode):
-	* generic/tclIOCmd.c (Tcl_ExecObjCmd):
-	* generic/tclListObj.c (NewListIntRep):
-	* generic/tclObj.c (Tcl_GetLongFromObj, Tcl_GetWideIntFromObj)
-	(FreeBignum, Tcl_SetBignumObj):
-	* generic/tclParseExpr.c (Tcl_ParseExpr):
-	* generic/tclStrToD.c (TclParseNumber):
-	* generic/tclStringObj.c (TclAppendFormattedObjs):
-	* unix/tclLoadDyld.c (TclpLoadMemory):
-	* unix/tclUnixPipe.c (TclpCreateProcess): fix signed-with-unsigned
-	comparison and other warnings from gcc4 -Wextra.
-
-2006-07-13  Andreas Kupries <andreask@activestate.com>
-
-	* unix/tclUnixPort.h: Added the inclusion of <AvailabilityMacros.h>.
-	The missing header caused the upcoming #if conditions to wrongly
-	exclude realpath, causing file normalize to ignore symbolic links in
-	the path.
-
-2006-07-11  Zoran Vasiljevic <vasiljevic@users.sourceforge.net>
-
-	* generic/tclAsync.c: Made Tcl_AsyncDelete() more tolerant when called
-	after all thread TSD has been garbage-collected.
-
-2006-07-05  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclParseExpr.c:	Completely new expression parser that
-	builds a parse tree instead of operating with deep recursion. This
-	corrects reports of stack-blowing crashes parsing long expressions
-	[Bug 906201] and replaces a fundamentally O(N^2) algorithm with an
-	O(N) one [RFE 903765]. The new parser is better able to generate error
-	messages that clearly report both the nature and context of the syntax
-	error [Bugs 1029267, 1381715]. For now, the code for the old parser is
-	still present and can be activated with a "#define OLD_EXPR_PARSER
-	1". This is for the sake of a clean implementation patch, and for ease
-	of benchmarking. The new parser is non-recursive, so much lighter in
-	stack consumption, but it does use more heap, so there may be cases
-	where parsing of long expressions that succeeded with the old parser
-	will lead to out of memory panics with the new one. There are still
-	more improvements possible on that point, though significant progress
-	may require changes to the Tcl_Token specifications documented for the
-	public Tcl_Parse*() routines.
-	***POTENTIAL INCOMPATIBILITY*** for any callers that rely on the exact
-	(usually terrible) error messages generated by the old parser. This
-	includes a large number of tests in the test suite.
-
-	* generic/tclInt.h:		Replaced TclParseWhiteSpace() with
-	* generic/tclParse.c:		TclParseAllWhiteSpace() which is what
-	* generic/tclParseExpr.c:	all the callers really needed.
-	Breaking whitespace runs at newlines is useful only to the command
-	parsing function, and it can call the file scoped routine
-	ParseWhiteSpace() to do that.
-
-	* tests/expr-old.test:	Removed knownBug constraints that masked
-	* tests/expr.test:	failures due to revised error messages.
-	* tests/parseExpr.test:
-
-2006-06-20  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclIOUtil.c:	Changed default configuration to
-	* generic/tclInt.decls: #undef USE_OBSOLETE_FS_HOOKS which disables
-	* generic/tclTest.c:	access to the Tcl 8.3 internal routines for
-	hooking into filesystem operations. Everyone ought to have migrated to
-	Tcl_Filesystems by now.
-	***POTENTIAL INCOMPATIBILITY*** for any code still stuck in the
-	pre-Tcl_Filesystem era.
-
-	* generic/tclIntDecls.h:	make genstubs
-	* generic/tclStubInit.c:
-
-	* generic/tclStrToD.c:	Removed dead code that permitted disabling of
-	recognition of the new 0b and 0o numeric formats.
-
-	* generic/tclExecute.c: Removed dead code that implemented alternative
-	* generic/tclObj.c:	design where numeric values did not
-	automatically narrow to the smallest Tcl_ObjType required to hold them
-
-	* generic/tclCmdAH.c:	Removed dead code that was old implementation
-	of [format].
-
-2006-06-14  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tclUnixPort.h (Darwin): support MAC_OS_X_VERSION_MAX_ALLOWED
-	define from AvailabilityMacros.h: override configure detection and
-	only use API available in the indicated OS version or earlier.
-
-2006-06-14  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* doc/format.n, doc/scan.n: Added examples for converting between
-	characters and their numeric interpretations following user prompting.
-
-2006-06-13  Donal K. Fellows  <dkf@users.sf.net>
-
-	* unix/tclLoadDl.c (TclpDlopen): Workaround for a compiler bug in Sun
-	Forte 6. [Bug 1503729]
-
-2006-06-06  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/GetStdChan.3:	Added recommendation that each call to
-	Tcl_SetStdChannel() be accompanied by a call to Tcl_RegisterChannel().
-
-2006-06-05  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* doc/Alloc.3: Added documentation of promise that Tcl_Realloc(NULL,x)
-	is the same as Tcl_Alloc(x), as discussed in comp.lang.tcl. Also fixed
-	nonsense sentence to say something meaningful.
-
-2006-05-29  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tcl.h (Tcl_DecrRefCount): use if/else construct to allow
-	placement in unbraced outer if/else conditions. (jcw)
-
-2006-05-27  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/tclMacOSXNotify.c: implemented pthread_atfork() handler that
-	* unix/tcl.m4 (Darwin):	    recreates CoreFoundation state and
-	notifier thread in the child after a fork(). Note that pthread_atfork
-	is available starting with Tiger only. Because vfork() is used by the
-	core on Darwin, [exec]/[open] are not affected by this fix, only
-	extensions or embedders that call fork() directly (such as TclX).
-	However, this only makes fork() safe from corefoundation tcl with
-	--disable-threads; as on all platforms, forked children may deadlock
-	in threaded tcl due to the potential for stale locked mutexes in the
-	child. [Patch 923072]
-
-	* unix/configure: autoconf-2.59
-	* unix/tclConfig.h.in: autoheader-2.59
-
-2006-05-24  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* unix/tcl.m4 (SC_CONFIG_SYSTEM): Fixed quoting of command script to
-	awk; it was a rarely used branch, but it was wrong. [Bug 1494160]
-
-2006-05-23  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* doc/chan.n, doc/refchan.n: Tighten up the documentation to follow a
-	slightly more consistent style with regard to argument capitalization.
-
-2006-05-13  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclProc.c (ProcCompileProc): When a bump of the compile
-	epoch forces the re-compile of a proc body, take care not to overwrite
-	any Proc struct that may be referred to on the active call stack. Note
-	that the fix will not be effective for code that calls the private
-	routine TclProcCompileProc() directly. [Bug 1482718]
-
-2006-05-13  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclEvent.c (HandleBgErrors): fix leak. [Coverity issue 86]
-
-2006-05-05  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclMain.c (Tcl_Main):		Corrected flaw that required
-	* tests/main.test: (Tcl_Main-4.5):	processing of one interactive
-	command before passing control to the loop routine registered with
-	Tcl_SetMainLoop(). [Bug 1481986]
-
-2006-05-04  Don Porter	<dgp@users.sourceforge.net>
-
-	* README:		Bump version number to 8.5a5
-	* generic/tcl.h:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/README.binary:
-	* win/configure.in:
-
-	* unix/configure:	autoconf-2.59
-	* win/configure:
-
-	* generic/tclBasic.c (ExprSrandFunc): Restore acceptance of wide/big
-	* doc/mathfunc.n: integer values by srand(). [Bug 1480509]
-
-2006-04-26  Don Porter	<dgp@users.sourceforge.net>
-
-	*** 8.5a4 TAGGED FOR RELEASE ***
-
-	* changes:	Updates for another RC.
-
-	* generic/tclBinary.c:	Revised the handling of the Q and q format
-	* generic/tclInt.h:	specifiers for [binary] to account for the
-	* generic/tclStrToD.c:	"middle endian" floating point format used in
-	Nokia N770.
-
-2006-04-25  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/DoubleObj.3:	More doc updates for TIP 237.
-	* doc/expr.n:
-	* doc/format.n:
-	* doc/mathfunc.n:
-	* doc/scan.n:
-	* doc/string.n:
-
-	* generic/tclScan.c:	[scan $s %u] is documented to accept only
-	* tests/scan.test:	decimal formatted integers. Fixed to match.
-
-2006-04-19  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclStrToD.c: Added code to support the "middle endian"
-	floating point format used in the Nokia N770's software-based floating
-	point. Thanks to Bruce Johnson for reporting this bug, originally on
-	http://wiki.tcl.tk/15408.
-	* library/clock.tcl: Fixed a bug with Daylight Saving Time and Posix
-	time zone specifiers reported by Martin Lemburg in
-	http://groups.google.com/group/comp.lang.tcl/browse_thread/thread/9a8b15a4dfc0b7a0
-	(and not at SourceForge).
-	* tests/clock.test: Added test case for the above bug.
-
-2006-04-18  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/IntObj.3: Minor review fixes, including better documentation of
-	the behaviour of Tcl_GetBignumAndClearObj.
-
-2006-04-17  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/IntObj.3: Documentation changes to account for TIP 237 changes.
-	* doc/Object.3: [Bug 1446971]
-
-2006-04-12  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/regc_locale.c (cclass): Redefined the meaning of [:print:]
-	to be exactly UNICODE letters, numbers, punctuation, symbols and
-	spaces (*not* whitespace). [Bug 1376892]
-
-2006-04-11  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclTrace.c:	Stop some interference between enter traces
-	* tests/trace.test:	and enterstep traces. [Bug 1458266]
-
-2006-04-07  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclPathObj.c: Yet another revised fix for the [Bug 1379287]
-	* tests/fileSystem.test:	family of path normalization bugs.
-
-2006-04-06  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* generic/tclRegexp.c (FinalizeRegexp): full reset data to indicate
-	readiness for reinitialization.
-
-2006-04-06  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclIndexObj.c (Tcl_GetIndexFromObjStruct):	It seems there
-	* tests/indexObj.test:	are extensions that rely on the prior behavior
-	* doc/GetIndex.3:	that the empty string cannot succeed as a
-	unique prefix matcher, so I'm restoring Donal Fellows's solution.
-	Added mention of this detail to the documentation. [Bug 1464039]
-
-	* tests/compExpr-old.test:	Updated testmathfunctions constraint
-	* tests/compExpr.test:		to post-TIP-232 world.
-	* tests/expr-old.test:
-	* tests/expr.test:
-	* tests/info.test:
-
-	* tests/indexObj.test:	Corrected other test errors revealed by
-	* tests/upvar.test:	testing outside the tcltest application.
-
-	* generic/tclPathObj.c: Revised fix for the [Bug 1379287] family of
-	path normalization bugs.
-
-2006-04-06  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tcl.m4: removed TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING
-	define on Darwin. [Bug 1457515]
-	* unix/configure: autoconf-2.59
-	* unix/tclConfig.h.in: autoheader-2.59
-
-2006-04-05  Don Porter	<dgp@users.sourceforge.net>
-
-	* win/tclWinInit.c:	More careful calls to Tcl_DStringSetLength()
-	* win/tclWinSock.c:	to avoid creating invalid DString states. Bump
-	* win/tclWinDde.c:	to version 1.3.2. [RFE 1366195]
-	* library/dde/pkgIndex.tcl:
-
-	* library/reg/pkgIndex.tcl:	Bump to registry 1.2 because
-	* win/tclWinReg.c:	Registry_Unload() is a new public routine
-	* win/Makefile.in:	compared to the 1.1.* releases.
-
-	* win/configure.in:	Bump package version numbers.
-	* win/configure:	autoconf 2.59
-
-2006-04-05  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclIndexObj.c (Tcl_GetIndexFromObjStruct): Allow empty
-	strings to be matched by the Tcl_GetIndexFromObj machinery, in the
-	same manner as any other key. [Bug 1464039]
-
-2006-04-03  Andreas Kupries <andreask@activestate.com>
-
-	* generic/tclIO.c (ReadChars): Added check, panic and commentary to a
-	piece of code which relies on BUFFER_PADDING to create enough space at
-	the beginning of each buffer for the insertion of partial multibyte
-	data at the beginning of a buffer. Commentary explains why this code
-	is OK, and the panic is as a precaution if someone twiddled the
-	BUFFER_PADDING into uselessness.
-
-	* generic/tclIO.c (ReadChars): Temporarily suppress the use of
-	TCL_ENCODING_END set when EOF was reached while the buffer we are
-	converting is not truly the last buffer in the queue. Together with
-	the Utf bug below it was possible to completely wreck the buffer data
-	structures, eventually crashing Tcl. [Bug 1462248]
-
-	* generic/tclEncoding.c (UtfToUtfProc): Stop accessing memory beyond
-	the end of the input buffer when TCL_ENCODING_END is set and the last
-	bytes of the buffer start a multi-byte sequence. This bug contributed
-	to [Bug 1462248].
-
-2006-03-30  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c: remove unused var and silence gcc warning
-
-2006-03-29  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* win/Makefile.in: convert _NATIVE paths to use / to avoid ".\"
-	path-as-escape issue.
-
-2006-03-29  Don Porter	<dgp@users.sourceforge.net>
-
-	* changes:	Updates for another RC.
-
-	* generic/tclPathObj.c:	 More fixes for path normalization when /../
-	* tests/fileSystem.test: tries to go beyond root.[Bug 1379287]
-
-	* generic/tclExecute.c: Revised INST_MOD implementation to do
-	calculations in native types as much as possible, moving to mp_ints
-	only when necessary.
-
-2006-03-28  Jeff Hobbs	<jeffh@ActiveState.com>
-
-	* win/tclWinPipe.c (TclpCreateProcess): change panics to Tcl errors
-	and do proper refcounting of noe objPtr. [Bug 1194429]
-
-	* unix/tcl.m4, win/tcl.m4: []-quote AC_DEFUN functions.
-
-2006-03-28  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Tcl.xcode/default.pbxuser:	add '-singleproc 1' cli arg to
-	* macosx/Tcl.xcodeproj/default.pbxuser: tcltest to ease test debugging
-
-	* macosx/Tcl.xcode/project.pbxproj:	removed $prefix/share from
-	* macosx/Tcl.xcodeproj/project.pbxproj: TCL_PACKAGE_PATH as per change
-	to unix/configure.in of 2006-03-13.
-
-	* unix/tclUnixFCmd.c (TclpObjNormalizePath): deal with *BSD/Darwin
-	realpath() converting relative paths into absolute paths [Bug 1064247]
-
-2006-03-28  Vince Darley  <vincentdarley@sourceforge.net>
-
-	* generic/tclIOUtil.c: fix to nativeFilesystemRecord comparisons
-	(lesser part of [Bug 1064247])
-
-2006-03-27  Pat Thoyts	<patthoyts@users.sourceforge.net>
-
-	* win/tclWinTest.c:	Fixes for [Bug 1456373] (mingw-gcc issue)
-
-2006-03-27  Andreas Kupries <andreask@activestate.com>
-
-	* doc/CrtChannel.3:    Added TCL_CHANNEL_VERSION_5, made it the
-	* generic/tcl.h:       version where the "truncateProc" is defined at,
-	* generic/tclIO.c:     and moved all channel drivers of Tcl to v5.
-	* generic/tclIOGT.c, generic/tclIORChan.c, unix/tclUnixChan.c:
-	* unix/tclUnixPipe.c, win/tclWinChan.c, win/tclWinConsole.c:
-	* win/tclWinPipe.c, win/tclWinSerial.c, win/tclWinSock.c:
-
-2006-03-27  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c: Merge INST_MOD computation in with the
-	INST_?SHIFT instructions, which also operate only on two integral
-	values. Also corrected flaw that made INST_BITNOT of wide values
-	require mp_int calculations. Also corrected type that missed optimized
-	handling of the tclBooleanType by the TclGetBooleanFromObj macro.
-
-	* changes:	Updates for another RC.
-
-2006-03-25  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c: Corrections to INST_EXPON detection of
-	overflow to use mp_int calculations.
-
-2006-03-24  Kevin B. Kenny  <kennykb@acm.org>
-
-	* generic/tclExecute.c (TclExecuteByteCode): Added a couple of missing
-	casts to 'int' that were affecting compilablity on VC6.
-
-2006-03-24  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclEncoding.c: Reverted latest change [Bug 506653] since it
-	reportedly killed test performance on Windows.
-
-	* generic/tclExecute.c: Revised INST_EXPON implementation to do
-	calculations in native types as much as possible, moving to mp_ints
-	only when necessary.
-
-2006-03-23  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c: Merged INST_EXPON handling in with the other
-	binary operators that operate on all number types (INST_ADD, etc.).
-
-	* tests/env.test: With case preserved (see 2006-03-21 commit) be sure
-	to do case-insensitive filtering. [Bug 1457065]
-
-2006-03-23  Reinhard Max  <max@suse.de>
-
-	* unix/tcl.spec: Cleaned up and completed the spec file. An RPM can
-	now be built from the tcl source distribution with "rpmbuild -tb
-	<tarball>"
-
-2006-03-22  Reinhard Max  <max@suse.de>
-
-	* tests/stack.test: Run the stack tests in subshells, so that they are
-	reported as failed tests rather than bugs in the test suite if the
-	recursion causes a segfault.
-
-2006-03-21  Don Porter	<dgp@users.sourceforge.net>
-
-	* changes:	Updates for another RC.
-
-	* generic/tclStrToD.c:	One of the branches of AccumulateDecimalDigit
-	* tests/parseExpr.test: did not. [Bug 1451233]
-
-	* tests/env.test:	Preserve case of saved env vars. [Bug 1409272]
-
-2006-03-21  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclInt.decls:	 implement globbing for HFS creator & type
-	* macosx/tclMacOSXFCmd.c:codes and 'hidden' flag, as documented in
-	* tests/macOSXFCmd.test: glob.n; objectified OSType handling in [glob]
-	* unix/tclUnixFile.c:	 and [file attributes]; fix globbing for
-	hidden files with pattern==NULL arg. [Bug 823329]
-	* generic/tclIntPlatDecls.h:
-	* generic/tclStubInit.c: make genstubs
-
-2006-03-20  Andreas Kupries <andreask@activestate.com>
-
-	* win/Makefile.in (install-libraries): Generate tcl8/8.4 directory
-	under Windows as well (cygwin Makefile). Related entry: 2006-03-07,
-	dgp. This moved the installation of http from 8.2 to 8.4, partially. A
-	fix of the required directory creation was done for unix on Mar 10,
-	without entry in the Changelog. This entry is for the fix of the
-	directory creation under Windows.
-
-	* unix/installManPage: There is always one even more broken "sed".
-	Moved the # comment starting character in the sed script to the
-	beginning of their respective lines. The AIX sed will not recognize
-	them as comments otherwise :( The actual text stays indented for
-	better association with the commands they belong to.
-
-2006-03-20  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* tests/cmdAH.test, tests/fCmd.test, tests/unixFCmd.test:
-	* tests/winFCmd.test: Cleanup of some test constraint handling, and a
-	few other minor issues.
-
-2006-03-18  Vince Darley  <vincentdarley@sourceforge.net>
-
-	* generic/tclFileName.c:
-	* doc/FileSystem.3:
-	* tests/fileName.test: Fix to [Bug 1084705] so that 'glob -nocomplain'
-	finally agrees with its documentation and doesn't swallow genuine
-	errors.
-
-	***POTENTIAL INCOMPATIBILITY*** for scripts that assumed '-nocomplain'
-	removes the need for 'catch' to deal with non-understood path names.
-
-	Small optimisation to implementation of pattern==NULL case of TclGlob,
-	and clarification to the documentation. [Tclvfs bug 1405317]
-
-2006-03-18  Vince Darley  <vincentdarley@sourceforge.net>
-
-	* tests/fCmd.test: added knownBug test case for [Bug 1394972]
-
-	* tests/winFCmd.test:
-	* tests/tcltest.test: corrected tests to better account for behaviour
-	of writable/non-writable directories on Windows 2000/XP. This, with
-	the previous patches, closes [Bug 1193497]
-
-2006-03-17  Andreas Kupries <andreask@activestate.com>
-
-	* doc/chan.n: Updated with documentation for the commands 'chan
-	create' and 'chan postevent' (TIP #219).
-
-	* doc/refchan.n: New file. Documentation of the command handler API
-	for reflected channels (TIP #219).
-
-2006-03-17  Joe Mistachkin <joe@mistachkin.com>
-
-	* unix/tclUnixPort.h: Include pthread.h prior to pthread_np.h [Bug
-	1444692]
-
-	* win/tclWinTest.c: Corrected typo of 'initializeMutex' that prevented
-	successful compilation.
-
-2006-03-16  Andreas Kupries <andreask@activestate.com>
-
-	* doc/open.n: Documented the changed behaviour of 'a'ppend mode.
-
-	* tests/io.test (io-43.1 io-44.[1234]): Rewritten to be self-contained
-	with regard to setup and cleanup. [Bug 681793]
-
-	* generic/tclIOUtil.c (TclGetOpenMode): Added the flag O_APPEND to the
-	list of POSIX modes used when opening a file for 'a'ppend. This
-	enables the proper automatic seek-to-end-on-write by the OS. See [Bug
-	680143] for longer discussion.
-
-	* tests/ioCmd.test (iocmd-13.7.*): Extended the testsuite to check the
-	new handling of 'a'.
-
-2006-03-15  Andreas Kupries <andreask@activestate.com>
-
-	* tests/socket.test: Extended the timeout in socket-11.11 from 10 to
-	40 seconds to allow for really slow machines. Also extended
-	actual/expected results with value of variable 'done' to make it
-	clearer when a test fails due to a timeout. [Bug 792159]
-
-2006-03-15  Vince Darley  <vincentdarley@sourceforge.net>
-
-	* win/fCmd.test: add proper test constraints so the new tests don't
-	run on Unix.
-
-2006-03-14  Andreas Kupries <andreask@activestate.com>
-
-	* generic/tclPipe.c (TclCreatePipeline): Modified the processing of
-	pipebars to fail if the last bar is followed only by redirections.
-	[Bug 768659]
-
-2006-03-14  Andreas Kupries <andreask@activestate.com>
-
-	* doc/fconfigure.n: Clarified that -translation is binary is reported
-	as lf when queried, because it is identical to lf, except for the
-	special additional behaviour when setting it. [Bug 666770]
-
-2006-03-14  Andreas Kupries <andreask@activestate.com>
-
-	* doc/clock.n: Removed double-quotes around section title NAME; not
-	needed.
-	* unix/installManpage: Reverted part to handle double-quotes in
-	section NAME, chokes older sed installations.
-
-2006-03-14  Andreas Kupries <andreask@activestate.com>
-
-	* library/tm.tcl (::tcl::tm::Defaults): Fixed handling of environment
-	variable TCLX.y_TM_PATH, bad variable reference. Thanks to Julian
-	Noble. [Bug 1448251]
-
-2006-03-14  Vince Darley  <vincentdarley@sourceforge.net>
-
-	* win/tclWinFile.c: updated patch to deal with 'file writable' issues
-	on Windows XP/2000.
-	* generic/tclTest.c:
-	* unix/tclUnixTest.c:
-	* win/tclWinTest.c:
-	* tests/fCmd.test: updated test suite to deal with correct permissions
-	setting and differences between XP/2000 and 95/98 3 tests still fail;
-	to be dealt with shortly
-
-2006-03-13  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclEncoding.c: Report error when an escape encoding is
-	missing one of its sub-encodings. [Bug 506653]
-
-	* unix/configure.in:	Revert change from 2005-07-26 that sometimes
-	* unix/configure:	added $prefix/share to the tcl_pkgPath. See
-	[Patch 1231015]. autoconf-2.59.
-
-2006-03-10  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclProc.c (ObjInterpProcEx):
-	* tests/apply.test (apply-5.1): Fix [apply] error messages so that
-	they quote the lambda expression. [Bug 1447355]
-
-2006-03-10  Zoran Vasiljevic  <vasiljevic@users.sourceforge.net>
-
-	-- Summary of changes fixing [Bug 1437595] --
-
-	* generic/tclEvent.c: Cosmetic touches and identation
-	* generic/tclInt.h: Added TclpFinalizeSockets() call.
-
-	* generic/tclIO.c: Calls TclpFinalizeSockets() as part of the
-	TclFinalizeIOSubsystem().
-
-	* unix/tclUnixSock.c: Added no-op TclpFinalizeSockets().
-
-	* win/tclWinPipe.c, win/tclWinSock.c: Finalization of sockets/pipes is
-	now solely done in TclpFinalizeSockets() and TclpFinalizePipes() and
-	not over the thread-exit handler, because the order of actions the Tcl
-	generic core will impose may result in cores/hangs if the thread exit
-	handler tears down corresponding subsystem(s) too early.
-
-2006-03-10  Vince Darley  <vincentdarley@sourceforge.net>
-
-	* win/tclWinFile.c: previous patch breaks tests, so removed.
-
-2006-03-09  Vince Darley  <vincentdarley@sourceforge.net>
-
-	* win/tclWinFile.c: fix to 'file writable' in certain XP directories.
-	Thanks to fvogel and jfg. [Patch 1344540] Modified patch to make use
-	of existing use of getSecurityProc.
-
-2006-03-08  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c: Complete missing bit of TIP 215 implementation
-	* tests/incr.test:
-
-2006-03-07  Joe English	 <jenglish@users.sourceforge.net>
-
-	* unix/tcl.m4: Set SHLIB_LD_FLAGS='${LIBS}' on NetBSD, as per the
-	other *BSD variants. [Bug 1334613]
-	* unix/configure: Regenerated.
-
-2006-03-07  Don Porter	<dgp@users.sourceforge.net>
-
-	* changes:	Update in prep. for 8.5a4 release.
-
-	* unix/Makefile.in:	Package http 2.5.2 requires Tcl 8.4, so the
-	* win/Makefile.in:	*.tm installation has to be placed in an "8.4"
-	directory, not an "8.2" directory.
-
-2006-03-06  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Revised handling of TCL_EVAL_* flags to
-	* tests/parse.test:	simplify TclEvalObjvInternal and to correct
-	the auto-loading of alias targets (parse-8.12). [Bug 1444291]
-
-2006-03-03  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclPathObj.c: Revised yesterday's fix for [Bug 1379287] to
-	work on Windows.
-
-	* generic/tclObj.c:	Compatibility support for existing code that
-	calls Tcl_GetObjType("boolean").
-
-2006-03-02  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclPathObj.c:		Fix for failed normalization of paths
-	* tests/fileSystem.test:	with /../ that lead back to the root
-	of the filesystem, like /foo/.. [Bug 1379287]
-
-2006-03-01  Reinhard Max  <max@suse.de>
-
-	* unix/installManPage: Fix the script for manpages that have quotes
-	around the .SH arguments, as doctools produces them. [Bug 1292145]
-	Some minor cleanups and improvements.
-
-2006-02-28  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Corrections to be sure that TCL_EVAL_GLOBAL
-	* tests/namespace.test: evaluations act the same as [uplevel #0]
-	* tests/parse.test:	evaluations, even when execution traces or
-	* tests/trace.test:	invocations of [::unknown] are present. [Bug
-	1439836]
-
-2006-02-22  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Corrected a few bugs in how [namespace
-	* tests/namespace.test: unknown] interacts with TCL_EVAL_* flags.
-	[Patch 958222]
-
-2006-02-17  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclIORChan.c: Revised error message generation and handling
-	* tests/ioCmd.test:	of exceptional return codes in the channel
-	reflection layer. [Bug 1372348]
-
-2006-02-16  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclIndexObj.c:	Disallow the "ambiguous" error message
-	* tests/indexObj.test:		when TCL_EXACT matching is requested.
-	* tests/ioCmd.test:
-
-2006-02-15  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclIO.c:	Made several routines tolerant of
-	* generic/tclIORChan.c: interp == NULL arguments. [Bug 1380662]
-	* generic/tclIOUtil.c:
-
-2006-02-09  Don Porter	<dgp@users.sourceforge.net>
-
-	TIP#215 IMPLEMENTATION
-
-	* doc/incr.n:		Revised [incr] to auto-initialize when varName
-	* generic/tclExecute.c: argument is unset. [Patch 1413115]
-	* generic/tclVar.c:
-	* tests/compile.test:
-	* tests/incr-old.test:
-	* tests/incr.test:
-	* tests/set.test:
-
-	* tests/main.test (Tcl_Main-6.7):	Improved robustness of
-	command auto-completion test. [Bug 1422736]
-
-2006-02-08  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/Encoding.3, doc/encoding.n: Updates due to review at request of
-	Don Porter. Mostly minor changes.
-
-2006-02-08  Don Porter	<dgp@users.sourceforge.net>
-
-	TIP#258 IMPLEMENTATION
-
-	* doc/Encoding.3:	New subcommand [encoding dirs].
-	* doc/encoding.n:	New routine Tcl_GetEncodingNameFromEnvironment
-	* generic/tcl.decls:	Made public:
-	* generic/tclBasic.c:	TclGetEncodingFromObj
-	* generic/tclCmdAH.c:		-> Tcl_GetEncodingFromObj
-	* generic/tclEncoding.c:TclGetEncodingSearchPath
-	* generic/tclInt.decls:		-> Tcl_GetEncodingSearchPath
-	* generic/tclInt.h:	TclSetEncodingSearchPath
-	* generic/tclTest.c:		-> Tcl_SetEncodingSearchPath
-	* library/init.tcl:	Removed commands:
-	* tests/cmdAH.test:		[tcl::unsupported::EncodingDirs]
-	* tests/encoding.test:		[testencoding path] (Tcltest)
-	* unix/tclUnixInit.c:	[Patch 1413934]
-	* win/tclWinInit.c:
-
-	* generic/tclDecls.h:	make genstubs
-	* generic/tclIntDecls.h:
-	* generic/tclStubInit.c:
-
-2006-02-01  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclProc.c: minor improvements to [apply]
-	* tests/apply.test: new tests; apply-5.1 currently fails to indicate
-	missing work in error reporting
-
-2006-02-01  Don Porter	<dgp@users.sourceforge.net>
-
-	TIP#194 IMPLEMENTATION
-
-	* doc/apply.n:	(New file)	New command [apply]. [Patch 944803]
-	* doc/uplevel.n:
-	* generic/tclBasic.c:
-	* generic/tclInt.h:
-	* generic/tclProc.c:
-	* tests/apply.test: (New file)
-	* tests/proc-old.test:
-	* tests/proc.test:
-
-	TIP#181 IMPLEMENTATION
-
-	* doc/Namespace.3:	New command [namespace unknown]. New public C
-	* doc/namespace.n:	routines Tcl_(Get|Set)NamespaceUnknownHandler.
-	* doc/unknown.n:	[Patch 958222]
-	* generic/tcl.decls:
-	* generic/tclBasic.c:
-	* generic/tclInt.h:
-	* generic/tclNamesp.c:
-	* tests/namespace.test:
-
-	* generic/tclDecls.h:	make genstubs
-	* generic/tclStubInit.c:
-
-	TIP#250 IMPLEMENTATION
-
-	* doc/namespace.n:	New command [namespace upvar]. [Patch 1275435]
-	* generic/tclInt.h:
-	* generic/tclNamesp.c:
-	* generic/tclVar.c:
-	* tests/namespace.test:
-	* tests/upvar.test:
-
-2006-01-26  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/dict.n: Fixed silly bug in example. Thanks to Heiner Marxen
-	<heiner.marxen@unsel.de> for catching this! [Bug 1415725]
-
-2006-01-26  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* unix/tclUnixChan.c (TclpOpenFileChannel): Tidy up and comment the
-	mess to do with setting up serial channels. This (deliberately) breaks
-	a broken FreeBSD port, indicates what we're really doing, and reduces
-	the amount of conditional compilation sections for better maintenance.
-
-2006-01-25  Donal K. Fellows  <dkf@users.sf.net>
-
-	* unix/tclUnixInit.c (TclpInitPlatform): Improved conditions on when
-	to update the FP rounding mode on FreeBSD, taken from FreeBSD port.
-
-2006-01-23  Donal K. Fellows  <dkf@users.sf.net>
-
-	* tests/string.test (string-12.21): Added test for [Bug 1410553] based
-	on original bug report.
-
-2006-01-23  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclStringObj.c: fixed incorrect handling of internal rep in
-	Tcl_GetRange. Thanks to twylite and Peter Spjuth. [Bug 1410553]
-
-	* generic/tclProc.c: fixed args handling for precompiled bodies [Bug
-	1412695]; thanks to Uwe Traum.
-
-2006-01-16  Reinhard Max  <max@suse.de>
-
-	* generic/tclPipe.c (FileForRedirect): Prevent nameString from being
-	freed without having been initialized.
-	* tests/exec.test: Added a test for the above.
-
-2006-01-12  Zoran Vasiljevic  <vasiljevic@users.sourceforge.net>
-
-	* generic/tclPathObj.c (Tcl_FSGetInternalRep): backported patch from
-	core-8-4-branch. A freed pointer has been overwritten causing all
-	sorts of coredumps.
-
-2006-01-12  Vince Darley  <vincentdarley@sourceforge.net>
-
-	* win/tclWinFile.c: fix to sharing violation [Bug 1366227]
-
-2006-01-11  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Moved Tcl_LogCommandInfo from tclBasic.c to
-	* generic/tclNamesp.c:	tclNamesp.c to get access to identifier with
-	* tests/error.test (error-7.0): file scope. Added check for traces on
-	::errorInfo, and when present fall back to contruction of the stack
-	trace in the variable so that write trace notification timings are
-	compatible with earlier Tcl releases. This reduces, but does not
-	completely eliminate the ***POTENTIAL INCOMPATIBILITY*** created by
-	the 2004-10-15 commit. [Bug 1397843]
-
-2006-01-10  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/configure:    add caching, use AC_CACHE_CHECK instead of
-	* unix/configure.in: AC_CACHE_VAL where possible, consistent message
-	* unix/tcl.m4:	     quoting, sync relevant tclconfig/tcl.m4 changes
-	and gratuitous formatting differences, fix SC_CONFIG_MANPAGES with
-	default argument, Darwin improvements to SC_LOAD_*CONFIG.
-
-2006-01-09  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclNamesp.c (NamespaceInscopeCmd):	[namespace inscope]
-	* tests/namespace.test: commands were not reported by [info level].
-	[Bug 1400572]
-
-2006-01-09  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* generic/tclTrace.c: Stop exporting the guts of the trace command;
-	nothing outside this file needs to see it. [Bug 971336]
-
-2006-01-05  Donal K. Fellows  <donal.k.fellows@manchester.ac.uk>
-
-	* unix/tcl.m4 (TCL_CONFIG_SYSTEM): Factor out the code to determine
-	the operating system version number, as it was replicated in several
-	places.
-
-2006-01-04  David Gravereaux  <davygrvy@pobox.com>
-
-	* win/tclAppInit.c: WIN32 native console signal handler removed. This
-	was found to be interfering with TWAPI extension one. IMO, special
-	services such as signal handlers should best be done with extensions
-	to the core after discussions on c.l.t. about Roy Terry's tclsh
-	children of a real windows service shell.
-
-	******************************************************************
-	*** CHANGELOG ENTRIES FOR 2005 IN "ChangeLog.2005"             ***
-	*** CHANGELOG ENTRIES FOR 2004 IN "ChangeLog.2004"             ***
-	*** CHANGELOG ENTRIES FOR 2003 IN "ChangeLog.2003"             ***
-	*** CHANGELOG ENTRIES FOR 2002 IN "ChangeLog.2002"             ***
-	*** CHANGELOG ENTRIES FOR 2001 IN "ChangeLog.2001"             ***
-	*** CHANGELOG ENTRIES FOR 2000 IN "ChangeLog.2000"             ***
-	*** CHANGELOG ENTRIES FOR 1999 AND EARLIER IN "ChangeLog.1999" ***
-	******************************************************************
diff --git a/ChangeLog.2008 b/ChangeLog.2008
deleted file mode 100644
index aaba6c9..0000000
--- a/ChangeLog.2008
+++ /dev/null
@@ -1,1529 +0,0 @@
-
-2008-12-21  Don Porter  <dgp@users.sourceforge.net>
-
-	*** 8.5.6 TAGGED FOR RELEASE ***
-
-	* generic/tcl.h:	Bump to 8.5.6 for release.
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-	* README:
-
-	* unix/configure:	autoconf-2.59
-	* win/configure:
-
-	* changes:	Update for 8.5.6 release.
-
-	* library/tclIndex: Removed reference to no-longer-extant procedure
-	'tclLdAout'.
-	* doc/library.n: Corrected mention of 'auto_exec' to 'auto_execok'.
-	[Patch 2114900] thanks to Stu Cassoff <stwo@users.sf.net>
-	Backport of 2008-11-26 commit from Kevin Kenny.
-
-	* win/tclWinThrd.c (TclpThreadCreate): We need to initialize the
-	thread id variable to 0 as on 64 bit windows this is a pointer sized
-	field while windows only fills it with a 32 bit value. The result is
-	an inability to join the threads as the ids cannot be matched.
-	Backport of 2008-10-13 commit from Pat Thoyts.
-
-2008-12-15  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclExecute.c (TEBC:INST_DICT_GET): Make sure that the result
-	is empty when generating an error message. [Bug 2431847]
-
-2008-12-12  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* library/clock.tcl (ProcessPosixTimeZone): Fix time change in Eastern
-	Europe (not 3:00 but 4:00 local time). [Bug 2207436]
-
-2008-12-11  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c (SetChannelFromAny and related): Modified the
-	* tests/io.test: internal representation of the tclChannelType to
-	contain not only the ChannelState pointer, but also a reference to
-	the interpreter it was made in. Invalidate and recompute the
-	internal representation when it is used in a different interpreter,
-	like cmdName intrep's. Added testcase. [Bug 2407783]
-
-2008-12-11  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* library/clock.tcl (ProcessPosixTimeZone): Fallback to European time
-	zone DST rules, when the timezone is between 0 and -12. [Bug 2207436]
-	* tests/clock.test (clock-52.[23]): Test cases for [Bug 2207436]
-
-2008-12-10  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata/*: Update from Olson's tzdata2008i.
-
-2008-12-04  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclPathObj.c (Tcl_FSGetNormalizedPath):	Added another
-	flag value TCLPATH_NEEDNORM to mark those intreps which need more
-	complete normalization attention for correct results. [Bug 2385549]
-
-2008-12-03  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclFileName.c (DoGlob):    One of the Tcl_FSMatchInDirectory
-	calls did not have its return code checked. This caused error messages
-	returned by some Tcl_Filesystem drivers to be swallowed.
-
-2008-12-02  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c (TclFinalizeIOSubsystem): Replaced Alexandre
-	Ferrieux's first patch for [Bug 2270477] with a gentler version, also
-	supplied by him.
-
-2008-12-01  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tclParse.c:	Backport fix for [Bug 2251175].
-
-2008-11-30  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/clock.tcl (format, ParseClockScanFormat): Added a [string
-	map] to get rid of namespace delimiters before caching a scan or
-	format procedure. [Bug 2362156]
-	* tests/clock.test (clock-64.[12]): Added test cases for the bug that
-	was tickled by a namespace delimiter inside a format string.
-
-2008-11-25  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c (TclFinalizeIOSubsystem): Applied Alexandre
-	Ferrieux's patch for [Bug 2270477] to prevent infinite looping during
-	finalization of channels not bound to interpreters.
-
-2008-08-23  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c: Backport of fix for [Bug 2333466].
-
-2008-11-18  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tcl.decls:	Fix signature and implementation of
-	* generic/tclDecls.h:	Tcl_HashStats, such that it conforms to the
-	* generic/tclHash.c:	documentation. [Bug 2308236]
-	* doc/Hash.3:
-
-2008-11-13  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* generic/tclInt.h:	Rename static function FSUnloadTempFile to
-	* generic/tclIOUtil.c:	TclFSUnloadTempFile, needed in tclLoad.c
-
-	* generic/tclLoad.c:	Fixed [Bug 2269431]: Load of shared
-				objects leaves temporary files on windows.
-
-2008-11-10  Andreas Kupries  <andreask@activestate.com>
-
-	* doc/platform_shell.n: Fixed [Bug 2255235], reported by Ulrich
-	* library/platform/pkgIndex.tcl: Ring <uring@users.sourceforge.net>.
-	* library/platform/shell.tcl: Updated the LOCATE command in the
-	* library/tm.tcl:   package 'platform::shell' to handle the new form
-	* unix/Makefile.in: of 'provide' commands generated by tm.tcl. Bumped
-	* win/Makefile.in:  package to version 1.1.4. Added cross-references
-	to the relevant parts of the code to avoid future desynchronization.
-
-2008-11-04  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclPort.h: Remove the ../win/ header dir as the build system
-	already has it, and it confuses builds when used with private headers
-	installed.
-
-2008-10-24  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* library/http/http.tcl: Backported a fix for reading HTTP-like
-	protocols that used to work and were broken with http 2.7. Now http
-	2.7.2
-
-2008-10-23  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tcl.h:	Bump version number to 8.5.6b1 to distinguish
-	* library/init.tcl:	CVS development snapshots from the 8.5.5 and
-	* unix/configure.in:	8.5.6 releases.
-	* unix/tcl.spec:
-	* win/configure.in:
-	* tools/tcl.wse.in:
-	* README
-
-	* unix/configure:	autoconf (2.59)
-	* win/configure:
-
-2008-10-19  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclProc.c:	Reset -level and -code values to defaults
-	after they are used. [Bug 2152286]
-
-2008-10-16  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/init.tcl:	Revised [unknown] so that it carefully
-	preserves the state of the ::errorInfo and ::errorCode variables at
-	the start of auto-loading and restores that state before the
-	autoloaded command is evaluated. [Bug 2140628]
-
-2008-10-10  Don Porter	<dgp@users.sourceforge.net>
-
-	*** 8.5.5 TAGGED FOR RELEASE ***
-
-	* generic/tcl.h:	Bump to 8.5.5 for release.
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-
-	* unix/configure:	autoconf-2.59
-	* win/configure:
-
-	* changes:	Update for 8.5.5 release.
-
-2008-10-08  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclTrace.c:	Corrected handling of errors returned by
-	variable traces so that the errorInfo value contains the original
-	error message. [Bug 2151707]
-
-	* generic/tclVar.c:	Revised implementation of TclObjVarErrMsg so
-	that error message construction does not disturb an existing
-	iPtr->errorInfo that may be in progress.
-
-2008-10-06  Jan Nijtmans  <nijtmans@users.sf.net>
-
-	* tclWinTest.c: Fix compiler warning when compiling this file with
-	mingw gcc:
-	    tclWinTest.c:706: warning: dereferencing type-punned pointer will
-	    break strict-aliasing rules
-	* generic/tclLoad.c: Make sure that any library which doesn't have an
-	unloadproc is only really unloaded when no library code is executed
-	yet. [Bug 2059262]
-
-2008-10-06  Joe Mistachkin  <joe@mistachkin.com>
-
-	* tools/man2tcl.c: Added missing line from patch by Harald Oehlmann.
-	[Bug 1934200]
-
-2008-10-05  Kevin B, Kenny  <kennykb@acm.org>
-
-	* libtommath/bn_mp_sqrt.c (bn_mp_sqrt): Handle the case where a
-	* tests/expr.test (expr-47.13):		number's square root is
-	between n<<DIGIT_BIT and n<<DIGIT_BIT+1. [Bug 2143288]
-	Thanks to Malcolm Boffey (malcolm.boffey@virgin.net) for the patch.
-
-2008-10-02  Joe Mistachkin  <joe@mistachkin.com>
-
-	* tools/man2help2.tcl: Integrated patches from Harald Oehlmann.
-	* tools/man2tcl.c: [Bug 1934200, 1934272]
-
-2008-09-27  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCmdIL.c (Tcl_LrepeatObjCmd): Improve the handling of the
-	case where the combination of number of elements and repeat count
-	causes the resulting list to be too large. [Bug 2130992]
-
-2008-09-25  Don Porter	<dgp@users.sourceforge.net>
-
-	* doc/global.n:	Correct false claim about [info locals].
-
-2008-09-17  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclInt.h: Correct the TclGetLongFromObj, TclGetIntFromObj,
-	and TclGetIntForIndexM macros so that they retrieve the longValue
-	field from the internalRep instead of casting the otherValuePtr field
-	to type long.
-
-2008-09-17  Miguel Sofer  <msofer@users.sf.net>
-
-	* library/init.tcl: Export min and max commands from the mathfunc
-	namespace. [Bug 2116053]
-
-2008-09-10  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclListObj.c (Tcl_ListObjGetElements): Make this list->dict
-	transformation - encountered when using [foreach] with dicts - not as
-	expensive as it was before. Spotted by Kieran Elby and reported on
-	tcl-core.
-
-2008-09-07  Miguel Sofer  <msofer@users.sf.net>
-
-	* doc/namespace.n: Fix [Bug 2098441]
-
-2008-08-28  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tcl.h:	Bump version number to 8.5.5b1 to distinguish
-	* library/init.tcl:	CVS development snapshots from the 8.5.4 and
-	* unix/configure.in:	8.5.5 releases.
-	* unix/tcl.spec:
-	* win/configure.in:
-	* tools/tcl.wse.in:
-	* README
-
-	* unix/configure:	autoconf-2.59
-	* win/configure:
-
-2008-08-22  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclUtil.c (TclReToGlob):	Added missing set of the
-	*exactPtr value to really fix [Bug 2065115]. Also avoid possible
-	DString overflow.
-	* tests/regexpComp.test:	Correct duplicate test names.
-
-2008-08-21  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tests/regexp.test, tests/regexpComp.test: Correct re2glob ***=
-	* generic/tclUtil.c (TclReToGlob):	    translation from exact
-	to anywhere-in-string match. [Bug 2065115]
-
-2008-08-20  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclTest.c (TestconcatobjCmd):	Fix use of internal-only
-	TclInvalidateStringRep macro. [Bug 2057479]
-
-2008-08-17  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclTest.c (TestconcatobjCmd):
-	* generic/tclUtil.c (Tcl_ConcatObj):
-	* tests/util.test (util-4.7):
-	Fix [Bug 1447328]; the original "fix" turned Tcl_ConcatObj() into a
-	hairy monster. This was exposed by [Bug 2055782]. Additionally,
-	Tcl_ConcatObj could corrupt its input under certain conditions!
-
-	*** NASTY BUG FIXED ***
-
-2008-08-14  Don Porter  <dgp@users.sourceforge.net>
-
-	*** 8.5.4 TAGGED FOR RELEASE ***
-
-	* tests/fileName.test:	Revise new tests for portability to case
-	insensitive filesystems.
-
-2008-08-14  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclCompile.h:		Add support for debug logging of DTrace
-	* generic/tclBasic.c:		'proc', 'cmd' and 'inst' probes (does
-					_not_ require a platform with DTrace).
-
-	* generic/tclCmdIL.c (TclInfoFrame):	Check fPtr->line before
-						dereferencing as line info may
-						not exists when TclInfoFrame()
-						is called from a DTrace probe.
-
-	* tests/msgcat.test:		Fix for ::tcl::mac::locale with
-					@modifier (HEAD backport 2008-06-01).
-
-	* tests/fCmd.test (fCmd-6.23):	Made result matching robust when test
-					workdir and /tmp are not on same FS.
-
-	* unix/Makefile.in:		Ensure Makefile shell is /bin/bash for
-	* unix/configure.in (SunOS):	DTrace-enabled build on Solaris.
-					(followup to 2008-06-12) [Bug 2016584]
-
-	* unix/tcl.m4 (SC_PATH_X):	Check for libX11.dylib in addition to
-					libX11.so et al.
-
-	* unix/configure: 		autoconf-2.59
-
-2008-08-13  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclFileName.c:	Fix for errors handling -types {}
-	* tests/fileName.test:		option to [glob]. [Bug 1750300]
-	Thanks to Matthias Kraft and George Peter Staplin.
-
-2008-08-12  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes:	Update for 8.5.4 release.
-
-2008-08-11  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* library/http/http.tcl: Remove 8.5 requirement.
-	* library/http/pkgIndex.tcl:
-	* unix/Makefile.in:
-	* win/Makefile.in:
-	* win/makefile.vc:
-
-2008-08-11  Andreas Kupries  <andreask@activestate.com>
-
-	* library/tm.tcl: Added a 'package provide' command to the generated
-	ifneeded scripts of Tcl Modules, for early detection of conflicts
-	between the version specified through the file name and a 'provide'
-	command in the module implementation, if any. Note that this change
-	also now allows Tcl Modules to not provide a 'provide' command at all,
-	and declaring their version only through their filename.
-
-	* generic/tclProc.c (Tcl_ProcObjCmd): Fixed memory leak triggered by
-	* tests/proc.test: procbody::test::proc. See [Bug 2043636]. Added a
-	test case demonstrating the leak before the fix. Fixed a few spelling
-	errors in test descriptions as well.
-
-2008-08-11  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/http/http.tcl:	Bump http version to 2.7.1 to account
-	* library/http/pkgIndex.tcl:	for [Bug 2046486] bug fix. This
-	* unix/Makefile.in:		release of http now requires a
-	* win/Makefile.in:		dependency on Tcl 8.5 to be able to
-	* win/makefile.bc:		use the unsigned formats in the
-	* win/makefile.vc:		[binary scan] command.
-
-2008-08-11  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* library/http/http.tcl: CRC field from zlib data should be treated as
-	unsigned for 64bit support. [Bug 2046846]
-
-2008-08-08  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tcl.h:	Bump to 8.5.4 for release.
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-
-	* unix/configure:	autoconf-2.59
-	* win/configure:
-
-	* changes:	Update for 8.5.4 release.
-
-2008-08-08  Kevin Kenny  <kennykb@acm.org>
-
-	* library/tzdata/CET:
-	* library/tzdata/MET:
-	* library/tzdata/Africa/Casablanca:
-	* library/tzdata/America/Eirunepe:
-	* library/tzdata/America/Rio_Branco:
-	* library/tzdata/America/Santarem:
-	* library/tzdata/America/Argentina/San_Luis:
-	* library/tzdata/Asia/Karachi:
-	* library/tzdata/Europe/Belgrade:
-	* library/tzdata/Europe/Berlin:
-	* library/tzdata/Europe/Budapest:
-	* library/tzdata/Europe/Sofia:
-	* library/tzdata/Indian/Mauritius:  Olson's tzdata2008e.
-
-2008-08-06  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclVar.c (TclLookupSimpleVar):  Retrieve the number of
-	locals in the localCache from the CallFrame and not from the Proc
-	which may have been mangled by a (broken?) recompile. Backport from
-	the HEAD.
-
-2008-08-04  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c: Stopped faulty double-logging of errors to
-	* tests/execute.test:	stack trace when a compile epoch bump triggers
-	fallback to direct evaluation of commands in a compiled script.
-	[Bug 2037338]
-
-2008-07-30  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c:	Corrected the timing of when the flag
-	TCL_ALLOW_EXCEPTIONS is tested.
-
-2008-07-29  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c:  fix [Bug 2030670] that cause
-	TclStackRealloc to panic on rare corner cases. Thx ajpasadyn for
-	diagnose and patch.
-
-2008-07-28  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclBasic.c: Added missing ref count when creating an empty
-	string as path (TclEvalEx). In 8.4 the missing code caused panics in
-	the testsuite. It doesn't in 8.5. I am guessing that the code path
-	with the missing the incr-refcount is not invoked any longer. Because
-	the bug in itself is certainly the same.
-
-2008-07-25  Daniel Steffen  <das@users.sourceforge.net>
-
-	* tests/info.test (info-37.0): Add !singleTestInterp constraint;
-	(info-22.8, info-23.0): switch to glob matching to avoid sensitivity
-	to tcltest.tcl line number changes, remove knownBug constraint, fix
-	expected result. [Bug 1605269]
-
-2008-07-25  Andreas Kupries  <andreask@activestate.com>
-
-	* tests/info.test: Tests 38.* added, exactly testing the tracking of
-	location for uplevel scripts.
-
-	* generic/tclCompile.c (TclInitCompileEnv): Reorganized the
-	initialization of the #280 location information to match the flow in
-	TclEvalObjEx to get more absolute contexts.
-
-	* generic/tclBasic.c (TclEvalObjEx): Moved the pure-list optimization
-	out of the eval-direct code path to be done always, i.e. even when a
-	compile is requested. This way we do not loose the association between
-	#280 location information and the list elements, if any.
-
-2008-07-23  Andreas Kupries  <andreask@activestate.com>
-
-	* tests/info.test: Reordered the tests to have monotonously increasing
-	numbers.
-
-	* generic/tclBasic.c: Modified TclArgumentGet to reject pure lists
-	* generic/tclCmdIL.c: immediately, without search. Reworked setup of
-	* generic/tclCompile.c: eoFramePtr, doesn't need the line information,
-	* tests/info.test: more sensible to have everything on line 1 when
-	eval'ing a pure list. Updated the users of the line information to
-	special case this based on the frame type (i.e.
-	TCL_LOCATION_EVAL_LIST). Added a testcase demonstrating the new
-	behaviour.
-
-2008-07-22  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclBasic.c: Added missing function comments.
-
-	* generic/tclCompile.c: Made the new TclEnterCmdWordIndex
-	* generic/tclCompile.h: static, and ansified.
-
-	* generic/tclBasic.c: Reworked the handling of bytecode literals for
-	* generic/tclCompile.c: #280 to fix the abysmal performance for deep
-	* generic/tclCompile.h: recursion, replaced the linear search through
-	* generic/tclExecute.c: the whole stack with another hashtable and
-	* generic/tclInt.h: simplified the data structure used by the compiler
-	by using an array instead of a hashtable. Incidentially this also
-	fixes the memory leak reported via [Bug 2024937].
-
-2008-07-21  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/encoding.test:  Make failing tests pass again. [Bug 1972867]
-
-2008-07-21  Andreas Kupries <andreask@activestate.com>
-
-	* generic/tclBasic.c: Extended the existing TIP #280 system (info
-	* generic/tclCmdAH.c: frame), added the ability to track the
-	* generic/tclCompCmds.c: absolute location of literal procedure
-	* generic/tclCompile.c: arguments, and making this information
-	* generic/tclCompile.h: available to uplevel, eval, and
-	* generic/tclInterp.c: siblings. This allows proper tracking of
-	* generic/tclInt.h: absolute location through custom (Tcl-coded)
-	* generic/tclNamesp.c: control structures based on uplevel, etc.
-	* generic/tclProc.c:
-
-2008-07-21  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* generic/tclFCmd.c: Inodes on windows are unreliable [Bug 2015723]
-
-2008-07-20  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclDictObj.c (SetDictFromAny): Make the list->dict
-	transformation a bit more efficient; modern dicts are ordered and so
-	we can round-trip through lists without needing the string rep at all.
-	* generic/tclListObj.c (SetListFromAny): Make the dict->list
-	transformation not lossy of internal representations and hence more
-	efficient. [Bug 2008248] (ajpasadyn) but using a more efficient patch.
-
-2008-07-15  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/DictObj.3: Fix error in example. [Bug 2016740]
-
-2008-07-08  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclGet.c:	Corrected out of date comments.
-
-2008-07-07  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclCmdIL.c (InfoFrameCmd): Fixed unsafe idiom of setting
-	the interp result found by Don Porter.
-
-2008-07-07  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/regexp.n, doc/regsub.n: Correct examples. [Bug 1982642]
-
-2008-07-04  Joe English  <jenglish@users.sourceforge.net>
-
-	* generic/tclEncoding.c(UtfToUtfProc): Avoid unwanted sign extension
-	when converting incomplete UTF-8 sequences. See [Bug 1908443] for
-	details.
-
-2008-07-03  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIORChan.c (InvokeTclMethod): Fixed the memory leak
-	reported in [Bug 1987821]. Thanks to Miguel for the report and Don
-	Porter for tracking the cause down.
-
-2008-07-03  Don Porter  <dgp@users.sourceforge.net>
-
-	* library/package.tcl:	Removed [file readable] testing from
-	[tclPkgUnknown] and friends. We find out soon enough whether a file is
-	readable when we try to [source] it, and not testing before allows us
-	to workaround the bugs on some common filesystems where [file
-	readable] lies to us. [Patch 1969717]
-
-2008-06-29  Don Porter  <dgp@users.sourceforge.net>
-
-	*** 8.5.3 TAGGED FOR RELEASE ***
-
-	* generic/tcl.h:	Bump to 8.5.3 for release.
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-
-	* unix/configure:	autoconf-2.59
-	* win/configure:
-
-	* doc/ObjectType.3:	Updated documentation of the Tcl_ObjType
-	struct to match expectations of Tcl 8.5 [Bug 1917650].
-
-	* generic/tclPathObj.c:  Plug memory leak in [Bug 1999176] fix. Thanks
-	Rolf Ade for detecting.
-
-2008-06-28  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclPathObj.c:	 Plug memory leak in [Bug 1972879] fix. Thanks
-	to Rolf Ade for detecting and Dan Steffen for the fix. [Bug 2004654]
-
-2008-06-26  Andreas Kupries  <andreask@activestate.com>
-
-	* unix/Makefile.in: Followup to my change of 2008-06-25, make code
-	generated by the Makefile and put into the installed tm.tcl
-	conditional on interpreter safeness as well. Thanks to Daniel Steffen
-	for reminding me of that code.
-
-2008-06-25  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes:	Update for 8.5.3 release.
-
-2008-06-25  Andreas Kupries  <andreask@activestate.com>
-
-	* library/tm.tcl:   Modified the handling of Tcl Modules and of the
-	* library/safe.tcl: Safe Base to interact nicely with each other,
-	* library/init.tcl: enabling requiring Tcl Modules in safe
-	* tests/safe.test:  interpreters. [Bug 1999119]
-
-2008-06-25  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* win/rules.vc:    Backported fix for dde/registry versions and
-	* win/makefile.vc: the staticpkg build option
-
-2008-06-24  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclPathObj.c: Fixed some internals management in the "path"
-	Tcl_ObjType for the empty string value. Problem led to a crash in the
-	command [glob -dir {} a]. [Bug 1999176]
-
-2008-06-23  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclPathObj.c: Fixed bug in Tcl_GetTranslatedPath() when
-	operating on the "Special path" variant of the "path" Tcl_ObjType
-	intrep. A full normalization was getting done, in particular, coercing
-	relative paths to absolute, contrary to what the function of producing
-	the "translated path" is supposed to do. [Bug 1972879]
-
-2008-06-19  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes:	Update for 8.5.3 release.
-
-	* generic/tclInterp.c:	Fixed completely boneheaded mistake that
-	* tests/interp.test:	[interp bgerror $slave] and [$slave bgerror]
-	would always act like [interp bgerror {}]. [Bug 1999035]
-
-	* tests/chanio.test:	Corrected flawed tests revealed by a -debug 1
-	* tests/event.test:	-singleproc 1 test suite run.
-	* tests/io.test:
-
-2008-06-19  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes:	Updates for 8.5.3 release.
-
-2008-06-17  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclClock.c (ClockConvertlocaltoutcObjCmd): Removed left
-	over debug output.
-
-2008-06-17  Andreas Kupries  <andreask@activestate.com>
-
-	* doc/tm.n: Followup to changelog entry 2008-03-18 regarding
-	::tcl::tm::Defaults. Updated the documentation to not only mention the
-	new (underscored) form of environment variable names, but make it the
-	encouraged form as well. [Bug 1914604]
-
-2008-06-17  Kevin Kenny  <kennykb@acm.org>
-
-	* generic/tclClock.c (ConvertLocalToUTC):
-	* tests/clock.test (clock-63.1): Fixed a bug where the internal
-	ConvertLocalToUTC command segfaulted if passed a dictionary without
-	the 'localSeconds' key. To the best of my knowledge, the bug was not
-	observable in the [clock] command itself.
-
-2008-06-16  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclCmdIL.c (TclInfoFrame): Backport of fix made on the
-	* tests/info.test: head branch :: Moved the code looking up the
-	information for key 'proc' out of the TCL_LOCATION_BC branch to
-	after the switch, this is common to all frame types. Updated the
-	testsuite to match. This was exposed by the 2008-06-08 commit
-	(Miguel), switching uplevel from direct eval to compilation. Fixes
-	[Bug 1987851].
-
-2008-06-12  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/Makefile.in:		Add complete deps on tclDTrace.h.
-
-	* unix/Makefile.in:		Clean generated tclDTrace.h file.
-	* unix/configure.in (SunOS):	Fix static DTrace-enabled build.
-
-	* unix/tcl.m4 (SunOS-5.11): Fix 64bit amd64 support with gcc & Sun cc.
-	* unix/configure: autoconf-2.59
-
-	* macosx/Tcl.xcodeproj/project.pbxproj:	Add debug configs with gcov,
-	and with corefoundation disabled; updates and cleanup for Xcode 3.1 and
-	for Leopard.
-	* macosx/Tcl.xcode/project.pbxproj:	Sync Tcl.xcodeproj changes.
-	* macosx/README:			Document new build configs.
-
-2008-05-26  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tests/io.test (io-53.9): Need to close chan before removing file.
-
-2008-05-23  Andreas Kupries  <andreask@activestate.com>
-
-	* win/tclWinChan.c (FileWideSeekProc): Accepted a patch by Alexandre
-	Ferrieux <ferrieux@users.sourceforge.net> to fix the [Bug 1965787].
-	'tell' now works for locations > 2 GB as well instead of going
-	negative.
-
-	* generic/tclIO.c (Tcl_SetChannelBufferSize): Accepted a patch by
-	* tests/io.test: Alexandre Ferrieux <ferrieux@users.sourceforge.net>
-	* tests/chanio.test: to fix the [Bug 1969953]. Buffersize outside of
-	the supported range are now clipped to nearest boundary instead of
-	ignored.
-
-2008-05-22  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclNamesp.c (Tcl_LogCommandInfo):	Restored ability to
-	handle the argument value length = -1. Thanks to Chris Darroch for
-	discovering the bug and providing the fix. [Bug 1968245]
-
-2008-05-21  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclParse.c (ParseComment):	The new TclParseAllWhiteSpace
-	* tests/parse.test (parse-15.60):	routine has no mechanism to
-	return the "incomplete" status of "\\\n" so calling this routine
-	anywhere that can be reached within a Tcl_ParseCommand() call is a
-	mistake. In particular, ParseComment() must not use it. [Bug 1968882]
-
-2008-05-21  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclNamesp.c (Tcl_SetNamespaceUnknownHandler): Corrected odd
-	logic for handling installation of namespace unknown handlers which
-	could lead too very strange things happening in the error case.
-
-2008-05-16  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCompile.c: Fix crash with tcl_traceExec. Found and fixed
-	by Alexander Pasadyn. [Bug 1964803]
-
-2008-05-07  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclCompCmds.c (TclCompileDictAppendCmd): Fix silly off-by
-	one error that caused a crash every time a compiled 'dict append' with
-	more than one argument was used. Found by Colin McCormack.
-
-2008-04-26  Zoran Vasiljevic  <vasiljevic@users.sourceforge.net>
-
-	* generic/tclAsync.c: Tcl_AsyncDelete(): panic if attempt to locate
-	handler token fails. Happens when some other thread attempts to delete
-	somebody else's token.
-
-	Also, panic early if we find out the wrong thread attempting to delete
-	the async handler (common trap). As, only the one that created the
-	handler is allowed to delete it.
-
-2008-04-24  Andreas Kupries  <andreask@activestate.com>
-
-	* tests/ioCmd.test: Extended testsuite for reflected channel
-	implementation. Added test cases about how it handles if the rug is
-	pulled out from under a channel (= killing threads, interpreters
-	containing the tcl command for a channel, and channel sitting in a
-	different interpreter/thread.)
-
-	* generic/tclIORChan.c: Fixed the bugs exposed by the new testcases,
-	redone most of the cleanup and exit handling.
-
-2008-04-15  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c (CopyData):	Applied another patch by Alexandre
-	* io.test (io-53.8a):		Ferrieux <ferrieux@users.sf.net>,
-	* chanio.test (chan-io-53.8a):	to shift EOF handling to the async
-	part of the command if a callback is specified, should the channel be
-	at EOF already when fcopy is called. Testcase by myself.
-
-2008-04-14  Kevin B. Kenny  <kennykb@acm.org>
-
-	* unix/tclUnixTime.c (NativeGetTime): Removed obsolete use of
-	'struct timezone' in the call to 'gettimeofday'. [Bug 1942197]
-
-	* tests/clock.test (clock-33.5, clock-33.5a, clock-33.8, clock-33.8a):
-	Added comments to the test that it can fail on a heavily loaded
-	system.
-
-2008-04-11  Don Porter	<dgp@users.sourceforge.net>
-
-	* generic/tcl.h:	Bump version number to 8.5.3b1 to distinguish
-	* library/init.tcl:	CVS development snapshots from the 8.5.2 and
-	* unix/configure.in:	8.5.3 releases.
-	* unix/tcl.spec:
-	* win/configure.in:
-	* README
-
-	* unix/configure:	autoconf (2.59)
-	* win/configure:
-
-2008-04-10  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIOCmd.c (Tcl_FcopyObjCmd): Keeping check for negative
-	values, changed to not be an error, but behave like the special value
-	-1 (copy all, default).
-
-	* tests/iocmd.test (iocmd-15.{12,13}): Removed.
-
-	* tests/io.test (io-52.5{,a,b}): Reverted last change, added
-	* tests/chanio.test (chan-io-52.5{,a,b}): comment regarding the
-	meaning of -1, added two more testcases for other negative values,
-	and input wrapped to negative.
-
-2008-04-09  Andreas Kupries  <andreask@activestate.com>
-
-	* tests/chanio.test (chan-io-52.5): Removed '-size -1' from test,
-	* tests/io.test (io-52.5): does not seem to have any bearing, and was
-	an illegal value.
-
-	* generic/tclIOCmd.c (Tcl_FcopyObjCmd): Added checking of -size value
-	* tests/ioCmd.test (iocmd-15.{13,14}): to reject negative values, and
-	values overflowing 32-bit signed. Basic patch by Alexandre Ferrieux
-	<ferrieux@users.sourceforge.net>, with modifications from me to
-	separate overflow from true negative value. Extended testsuite. [Bug
-	1557855]
-
-2008-04-08  Andreas Kupries  <andreask@activestate.com>
-
-	* tests/io.test (io-53.8): Fixed ordering of vwait and after
-	cancel. cancel has to be done after the vwait completes.
-
-2008-04-09  Daniel Steffen  <das@users.sourceforge.net>
-
-	* tests/chanio.test (chan-io-53.8,53.9,53.10):	fix typo & quoting for
-	* tests/io.test (io-53.8,53.9,53.10):		spaces in builddir path
-
-2008-04-07  Andreas Kupries  <andreask@activestate.com>
-
-	* tests/io.test (io-53.10): Testcase for bi-directionaly fcopy.
-	* tests/chanio.test:
-	* generic/tclIO.c: Additional changes to data structures for fcopy
-	* generic/tclIO.h: and channels to perform proper cleanup in case
-	of a channel having two background copy operations running as is
-	now possible.
-
-	* tests/io.test (io-53.10): Testcase for bi-directionaly fcopy.
-	* generic/tclIO.c: Additional changes to data structures for fcopy
-	and channels to perform proper cleanup in case of a channel having
-	two background copy operations running as is now possible.
-
-2008-04-07  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c (BUSY_STATE, CheckChannelErrors,
-	TclCopyChannel): New macro, and the places using it. This change
-	allows for bi-directional fcopy on channels. [Bug 1350564]. Thanks
-	to Alexandre Ferrieux <ferrieux@users.sourceforge.net> for the
-	patch.
-
-2008-04-07  Reinhard Max  <max@suse.de>
-
-	* generic/tclStringObj.c (Tcl_AppendFormatToObj): Fix [format {% d}]
-	so that it behaves the same way as in 8.4 and as C's printf().
-	* tests/format.test: Add a test for '% d' and '%+d'.
-
-2008-04-05  Kevin B. Kenny  <kennykb@acm.org>
-
-	* tests/chanio.test (chan-io-53.9):
-	* tests/io.test (io-53.9): Made test cleanup robust against the
-	possibility of slow process shutdown on Windows.
-
-	* win/tcl.m4: Added -D_CRT_SECURE_NO_DEPRECATE and
-	-DCRT_NONSTDC_NO_DEPRECATE to the MSVC compilation flags so that the
-	compilation doesn't barf on perfectly reasonable Posix system calls.
-	* win/configure: Manually patched (don't have the right autoconf to
-	hand).
-
-	* win/tclWinFile.c: (WinSymLinkDirectory): Fixed a problem that
-	Tcl was creating an NTFS junction point (IO_REPARSE_TAG_MOUNT_POINT)
-	but filling in the union member for a Vista symbolic link. We had
-	gotten away with this error because the union member
-	(SymbolicLinkReparseBuffer) was misdefined in this file and in the
-	'winnt.h' in early versions of MinGW. MinGW 3.4.2 has the correct
-	definition of SymbolicLinkReparseBuffer, exposing the mismatch,
-	and making tests cmdAH-19.4.1, fCmd-28.*, and filename-11.* fail.
-
-2008-04-04  Andreas Kupries  <andreask@activestate.com>
-
-	* tests/io.test (io-53.9): Added testcase for [Bug 780533], based
-	* tests/chanio.test: on Alexandre's test script. Also fixed problem
-	with timer in preceding test, was not canceled properly in the ok case
-
-2008-04-04  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIORChan.c (ReflectOutput): Allow zero return from write
-	when input was zero-length anyway. Otherwise keept it an error, and
-	separate the message from 'written too much'.
-
-	* tests/ioCmd.test (iocmd-24.6): Testcase updated for changed message.
-
-	* generic/tclIORChan.c (ReflectClose): Added missing removal of the
-	now closed channel from the reflection map. Before we could crash the
-	system by invoking 'chan postevent' on a closed reflected channel,
-	dereferencing the dangling pointer in the map.
-
-	* tests/ioCmd.test (iocmd-31.8): Testcase for the above.
-
-2008-04-03  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c (CopyData): Applied patch [Bug 1932639] to
-	* tests/io.test: prevent fcopy from calling -command synchronously
-	* tests/chanio.test: the first time. Thanks to Alexandre Ferrieux
-	<ferrieux@users.sourceforge.net> for report and patch.
-
-2008-04-02  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclIO.c (CopyData): Applied patch for fcopy problem [Bug
-	780533], with many thanks to Alexandre Ferrieux
-	<ferrieux@users.sourceforge.net> for tracking it down and providing a
-	solution. Still have to convert his test script into a proper test
-	case.
-
-2008-04-01  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclStrToD.c: Applied patch for [Bug 1839067] (fp rounding
-	* unix/tcl.m4:	       setup on solaris x86, native cc), provided by
-	* unix/configure:      Michael Schlenker. configure regen'd.
-
-2008-04-01  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStubLib.c (Tcl_InitStubs):	Added missing error message.
-	* generic/tclPkg.c (Tcl_PkgInitStubsCheck):
-
-2008-03-30  Kevin Kenny  <kennykb@acm.org>
-
-	* generic/tclInt.h (TclIsNaN):
-	* unix/configure.in: Added code to the configurator to check for a
-			     standard isnan() macro and use it if one is
-			     found. This change avoids bugs where the test of
-			     ((d) != (d)) is optimized away by an
-			     overaggressive compiler. [Bug 1783544]
-	* generic/tclObj.c: Added missing #include <math.h> needed to locate
-			    isnan() after the above change.
-
-	* unix/configure: autoconf-2.61
-
-	* tests/mathop.test (mathop-25.9, mathop-25.14): Modified tests to
-	deal with (slightly buggy) math libraries in which pow() returns an
-	incorrectly rounded result. [Bug 1808174]
-
-2008-03-26  Don Porter  <dgp@users.sourceforge.net>
-
-	*** 8.5.2 TAGGED FOR RELEASE ***
-
-	* generic/tcl.h:	Bump to 8.5.2 for release.
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-
-	* unix/configure:	autoconf-2.59
-	* win/configure:
-
-	* changes:		Updated for 8.5.2 release.
-
-2008-03-28  Donal K. Fellows  <dkf@users.sf.net>
-
-	* tests/fCmd.test: Substantial rewrite to use many more tcltest
-	features. Great reduction in quantity of [catch] gymnastics. Several
-	buggy tests fixed, including one where the result of the previous test
-	was being checked!
-
-2008-03-27  Kevin B. Kenny  <kennykb@acm.org>
-
-	* library/tzdata/America/Marigot:
-	* library/tztata/America/St_Barthelemy:
-	* library/tzdata/America/Argentina/San_Luis:
-	* library/tzdata/Asia/Ho_Chi_Minh:
-	* library/tzdata/Asia/Kolkata:	(new files)
-	* library/tzdata/America/Caracas:
-	* library/tzdata/America/Havana:
-	* library/tzdata/America/Santiago:
-	* library/tzdata/America/Argentina/Buenos_Aires:
-	* library/tzdata/America/Argentina/Catamarca:
-	* library/tzdata/America/Argentina/Cordoba:
-	* library/tzdata/America/Argentina/Jujuy:
-	* library/tzdata/America/Argentina/La_Rioja:
-	* library/tzdata/America/Argentina/Mendoza:
-	* library/tzdata/America/Argentina/Rio_Gallegos:
-	* library/tzdata/America/Argentina/San_Juan:
-	* library/tzdata/America/Argentina/Tucuman:
-	* library/tzdata/America/Argentina/Ushuaia:
-	* library/tzdata/Asia/Baghdad:
-	* library/tzdata/Asia/Calcutta:
-	* library/tzdata/Asia/Damascus:
-	* library/tzdata/Asia/Saigon:
-	* library/tzdata/Pacific/Easter:
-		Changes up to and including Olson's tzdata2008b.
-
-2008-03-27  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/tcl.m4 (SunOS-5.1x): Fix 64bit support for Sun cc. [Bug
-	1921166]
-
-	* unix/configure: autoconf-2.59
-
-2008-03-26  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes:		Updated for 8.5.2 release.
-
-2008-03-24  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* generic/tclBinary.c: [Bug 1923966] - crash in binary format
-	* tests/binary.test:   Added tests for the above crash condition.
-
-2008-03-21  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/switch.n: Clarified documentation in respect of two-argument
-	invokation. [Bug 1899962]
-
-	* tests/switch.test: Added more tests of regexp-mode compilation of
-	the [switch] command. [Bug 1854435]
-
-2008-03-20  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tcl.h, generic/tclThreadAlloc.c: Tidied up the declarations
-	of Tcl_GetMemoryInfo so that it is always defined. Will panic when
-	called against a Tcl that was previously built without it at all,
-	which is OK because that also indicates a serious mismatch between
-	memory configuration options.
-
-2008-03-19  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tcl.h, generic/tclThreadAlloc.c (Tcl_GetMemoryInfo): Make
-	sure this function is available when direct linking. [Bug 1868171]
-
-	* tests/reg.test (reg-33.14): Marked nonPortable because some
-	environments have small default stack sizes. [Bug 1905562]
-
-2008-03-18  Andreas Kupries  <andreask@activestate.com>
-
-	* library/tm.tcl (::tcl::tm::UnknownHandler): Changed 'source' to
-	'source -encoding utf-8'. This fixes a portability problem of Tcl
-	Modules pointed out by Don Porter. By using plain 'source' we were at
-	the mercy of 'encoding system', making modules less portable than they
-	could be. The exact scenario: A writes a TM in some weird encoding
-	which is A's system encoding, distributes it, and somewhere else it
-	cannot be read/used because the system encoding is different. Forcing
-	the use of utf-8 makes the module portable.
-
-	***INCOMPATIBILITY*** for all Tcl Modules already written in non-utf-8
-	compatible encodings.
-
-2008-03-18  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c:	Patch from Miguel Sofer to correct the
-	alignment of memory allocated by GrowEvaluationStack(). [Bug 1914503]
-
-2008-03-18  Andreas Kupries  <andreask@activestate.com>
-
-	* library/tm.tcl (::tcl::tm::Defaults): Modified handling of
-	environment variables. Solution slightly different than proposed in
-	the report. Using the underscored form TCLX_y_TM_PATH even if
-	TCLX.y_TM_PATH exists. Also using a loop to cut prevent code
-	replication. [Bug 1914604]
-
-2008-03-16  Donal K. Fellows  <dkf@users.sf.net>
-
-	* generic/tclCompCmds.c (TclCompileDictForCmd): Correct the handling
-	of stack space calculation (the jump pattern used was confusing the
-	simple-minded code doing the calculations). [Bug 1903325]
-
-	* doc/lreplace.n: Clarified documentation of what happens with
-	negative indices. [Bug 1905809] Added example, tidied up formatting.
-
-2008-03-14  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c (OldMathFuncProc):	Same workaround protection
-	from bad TclStackAlloc() alignment. Thanks George Peter Staplin.
-
-	* generic/tclCmdIL.c (Tcl_LsortObjCmd):	Use ckalloc() to allocate
-	SortElement arrays instead of TclStackAlloc() which isn't getting
-	alignment right. Workaround for [Bug 1914503].
-
-2008-03-14  Reinhard Max  <max@suse.de>
-
-	* generic/tclTest.c:  Ignore the return value of write() when we are
-	* unix/tclUnixPipe.c: about to exit anyways.
-
-2008-03-13  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/configure.in: Use backslash-quoting instead of double-quoting
-	* unix/tcl.m4:	     for lib paths in tclConfig.sh. [Bug 1913622]
-	* unix/configure:    autoconf-2.59
-
-2008-03-13  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes:		Updated for 8.5.2 release.
-
-	* generic/tclStrToD.c:	Resolve identifier conflict over "pow10" with
-	libm in Cygwin and DJGPP. Thanks to Gordon Schumacher and Philip
-	Moore. [Patch 1800636]
-
-2008-03-12  Daniel Steffen  <das@users.sourceforge.net>
-
-	* macosx/Tcl.xcodeproj/project.pbxproj:	Add support for Xcode 3.1
-	* macosx/Tcl.xcodeproj/default.pbxuser:	CODE_SIGN_IDENTITY and
-	* macosx/Tcl-Common.xcconfig:		'xcodebuild install'.
-
-2008-03-12  Andreas Kupries  <andreask@activestate.com>
-
-	* doc/info.n: Replaced {expand} with {*}.
-
-2008-03-12  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/Makefile.in (install-libraries):	Bump http to 2.7
-	* win/Makefile.in (install-libraries):	Added -myaddr option to allow
-	* library/http/http.tcl (http::geturl):	control of selected socket
-	* library/http/pkgIndex.tcl:		interface. [Bug 559898]
-	* doc/http.n, tests/http.test:		Added -keepalive and
-	-protocol 1.1 with chunked transfer encoding support. [Bug 1063703,
-	1470377, 219225] (default keepalive is 0)
-	Added ability to override Host in -headers. [Bug 928154]
-	Added -strict option to control URL validation on per-call basis.
-	[Bug 1560506]
-
-2008-03-11  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* library/http/http.tcl (http::geturl): Add -method option to support
-	* tests/http.test (http-3.1):		http PUT and DELETE requests.
-	* doc/http.n:				[Bug 1599901, 862554]
-
-	* library/http/http.tcl: Whitespace changes, code cleanup. Allow http
-	to be re-sourced without overwriting http state.
-
-2008-03-11  Daniel Steffen  <das@users.sourceforge.net>
-
-	* generic/tclEncoding.c (LoadEscapeEncoding): Avoid leaking escape
-	sub-encodings, fixes encoding-11.1 failing after iso2022-jp loaded.
-	[Bug 1893053]
-
-	* macosx/tclMacOSXNotify.c: Avoid using CoreFoundation after fork() on
-	Darwin 9 even when TclpCreateProcess() uses vfork().
-
-	* macosx/Tcl.xcodeproj/project.pbxproj:	Add support for Xcode 3.1 and
-	* macosx/Tcl.xcodeproj/default.pbxuser:	configs for building with
-	* macosx/Tcl-Common.xcconfig:		gcc-4.2 and llvm-gcc-4.2.
-
-	* unix/tclUnixPort.h:			Workaround vfork() problems in
-						llvm-gcc-4.2.1 -O4 build.
-
-	* unix/tclUnixPort.h:			Move MODULE_SCOPE compat
-						define to top. [Bug 1911102]
-
-	* macosx/GNUmakefile:			Fix quoting to allow paths
-	* macosx/Tcl-Common.xcconfig:		to ${builddir} and
-	* unix/Makefile.in:			${INSTALL_ROOT} to contain
-	* unix/configure.in:			spaces.
-	* unix/install-sh:
-	* unix/tcl.m4:
-	* tests/ioCmd.test:
-
-	* unix/configure:			autoconf-2.59
-
-	* unix/Makefile.in (install-strip):	Strip non-global symbols from
-						dynamic library.
-
-	* unix/tclUnixNotfy.c:			Fix warning.
-
-	* tests/exec.test (exec-9.7):		Reduce timing sensitivity
-	* tests/socket.test (socket-2.11):	(esp. on multi-proc machines).
-
-	* tests/fCmd.test (fCmd-9.4):		Skip on Darwin 9 (xfail).
-
-2008-03-11  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclVar.c (TclDeleteNamespaceVars):
-	* tests/var.test (var-8.2): Unset traces on vars should be called with
-	a FQ named during namespace deletion. This was causing infinite loops
-	when unset traces recreated the var, as reported by Julian Noble. [Bug
-	1911919]
-
-2008-03-10  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes:		Updated for 8.5.2 release.
-
-	* doc/http.n:	Revised to indicate that [package require http 2.5.5]
-	is needed to get all the documented commands ([http::meta]).
-
-	* generic/tclEvent.c (TclDefaultBgErrorHandlerObjCmd):	Added error
-	* tests/event.test (event-5.*):	checking to protect against callers
-	passing invalid return options dictionaries. [Bug 1901113]
-
-	* generic/tclBasic.c (ExprAbsFunc):	Revised so that the abs()
-	* tests/expr.test:	function and the [::tcl::mathfunc::abs]
-	command do not return the value of -0, or equivalent values with more
-	alarming string reps like -1e-350. [Bug 1893815]
-
-2008-03-07  Andreas Kupries  <andreask@activestate.com>
-
-	* generic/tclResult.c (ReleaseKeys): Workaround for [Bug 1904907].
-	Reset the return option keys to NULL to allow full re-initialization
-	by GetKeys(). This introduces a memory leak for the key objects, but
-	gets us around a crash in the finalization of reflected channels when
-	handling returns, either at compile- or runtime. In both cases we
-	access the keys after they have been released by their thread exit
-	handler. A proper fix is entangled with the untangling of the
-	finalization ordering and attendant issues. For now we choose the
-	lesser evil.
-
-2008-03-07  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclExecute.c (Tcl_ExprObj):	Revised expression bytecode
-	compiling so that bytecodes invalid due to changing context or due to
-	the difference between expressions and scripts are not reused. [Bug
-	1899164]
-
-	* generic/tclCmdAH.c:	Revised direct evaluation implementation of
-	[expr] so that [expr $e] caches compiled bytecodes for the expression
-	as the intrep of $e.
-
-	* tests/execute.test (execute-6.*):	More tests checking that
-	script bytecode is invalidated in the right situations.
-
-2008-03-07  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* win/configure.in: Add AC_HEADER_STDC to support msys/win64.
-
-2008-03-06  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/namespace.n: Minor tidying up. [Bug 1909019]
-
-2008-03-04  Don Porter  <dgp@users.sourceforge.net>
-
-	* tests/execute.test (6.3,4):	Added tests for [Bug 1899164].
-
-2008-03-03  Reinhard Max  <max@suse.de>
-
-	* unix/tclUnixChan.c: Fix mark and space parity on Linux, which uses
-	CMSPAR instead of PAREXT.
-
-2008-03-02  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclNamesp.c (GetNamespaceFromObj):
-	* tests/interp.test (interp-28.2): Spoil the intrep of an nsNameType
-	obj when the reference crosses interpreter boundaries.
-
-2008-02-29  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclResult.c (Tcl_SetReturnOptions):	Revised the refcount
-	management of Tcl_SetReturnOptions to become that of a conventional
-	Consumer routine. Thanks to Peter Spjuth for pointing out the
-	difficulties calling Tcl_SetReturnOptions with non-0-count value for
-	options.
-	* generic/tclExecute.c (INST_RETURN_STK): Revised the one caller
-	within Tcl itself which passes a non-0-count value to
-	Tcl_SetReturnOptions().
-
-	* generic/tclBasic.c (Tcl_AppendObjToErrorInfo):	Revised the
-	refcount management of Tcl_AppendObjToErrorInfo to become that of a
-	conventional Consumer routine. This preserves the ease of use for the
-	overwhelming common callers who pass in a 0-count value, but makes the
-	proper call with a non-0-count value less surprising.
-	* generic/tclEvent.c (TclDefaultBgErrorHandlerObjCmd):	Revised the
-	one caller within Tcl itself which passes a non-0-count value to
-	Tcl_AppendObjToErrorInfo().
-
-2008-02-28  Joe English  <jenglish@users.sourceforge.net>
-
-	* unix/tclPort.h, unix/tclCompat.h, unix/tclUnixChan.h: Reduce scope
-	of <sys/filio.h> and <sys/ioctl.h> #includes. [Patch 1903339]
-
-2008-02-28  Joe English  <jenglish@users.sourceforge.net>
-
-	* unix/tclUnixChan.c, unix/tclUnixNotfy.c, unix/tclUnixPipe.c:
-	Consolidate all code conditionalized on -DUSE_FIONBIO into one place.
-	* unix/tclUnixPort.h, unix/tclUnixCompat.c: New routine
-	TclUnixSetBlockingMode(). [Patch 1903339]
-
-2008-02-28  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclBasic.c (TclEvalObjvInternal):	Plug memory leak when
-	an enter trace deletes or changes the command, prompting a reparsing.
-	Don't let the second pass lose commandPtr value allocated during the
-	first pass.
-
-	* generic/tclCompExpr.c (ParseExpr):	Plug memory leak in error
-	message generation.
-
-	* generic/tclStringObj.c (Tcl_AppendFormatToObj): [format %llx $big]
-	leaked an mp_int.
-
-	* generic/tclCompCmds.c (TclCompileReturnCmd):	The 2007-10-18 commit
-	to optimize compiled [return -level 0 $x] [RFE 1794073] introduced a
-	memory leak of the return options dictionary. Fixing that.
-
-2008-02-27  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* library/http/http.tcl: [Bug 705956] - fix inverted logic when
-	cleaning up socket error in geturl.
-
-2008-02-27  Kevin B. Kenny  <kennykb@acm.org>
-
-	* doc/clock.n: Corrected minor indentation gaffe in the penultimate
-	paragraph. [Bug 1898025]
-	* generic/tclClock.c (ParseClockFormatArgs): Changed to check that the
-	clock value is in the range of a 64-bit integer. [Bug 1862555]
-	* library/clock.tcl (::tcl::clock::format, ::tcl::clock::scan,
-	(::tcl::clock::add, ::tcl::clock::LocalizeFormat): Fixed bugs in
-	caching of localized strings that caused weird results when localized
-	date/time formats were used. [Bug 1902423]
-	* tests/clock.test (clock-61.*, clock-62.1): Regression tests for [Bug
-	1862555] and [Bug 1902423].
-
-2008-02-26  Joe English  <jenglish@users.sourceforge.net>
-
-	* generic/tclIOUtil.c, unix/tclUnixPort.h, unix/tclUnixChan.c:
-	Remove dead/unused portability-related #defines and unused conditional
-	code. See [Patch 1901828] for discussion.
-
-2008-02-26  Joe English  <jenglish@users.sourceforge.net>
-
-	* generic/tclIORChan.c (enum MethodName),
-	* generic/tclCompExpr.c (enum Marks): More stray trailing ","s
-
-2008-02-26  Joe English  <jenglish@users.sourceforge.net>
-
-	* unix/configure.in(socklen_t test): Define socklen_t as "int" if
-	missing, not "unsigned". Use AC_TRY_COMPILE instead of
-	AC_EGREP_HEADER.
-	* unix/configure: regenerated.
-
-2008-02-26  Joe English  <jenglish@users.sourceforge.net>
-
-	* generic/tclCompile.h: Remove stray trailing "," from enum
-	InstOperandType definition (C99ism).
-
-2008-02-26  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* generic/tclUtil.c (TclReToGlob): Fix the handling of the last star
-	* tests/regexpComp.test:	   possibly being escaped in
-	determining right anchor. [Bug 1902436]
-
-2008-02-26  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* library/http/pkgIndex.tcl: Set version 2.5.5
-	* library/http/http.tcl:     It is better to do the [eof] check after
-	trying to read from the socket. No clashes found in testing. Added
-	http::meta command to access the http headers. [Bug 1868845]
-
-2008-02-22  Pat Thoyts  <patthoyts@users.sourceforge.net>
-
-	* library/http/pkgIndex.tcl: Set version 2.5.4
-	* library/http/http.tcl:     Always check that the state array exists
-	in the http::status command. [Bug 1818565]
-
-2008-02-13  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tcl.h:	Bump version number to 8.5.2b1 to distinguish
-	* library/init.tcl:	CVS development snapshots from the 8.5.1 and
-	* unix/configure.in:	8.5.2 releases.
-	* unix/tcl.spec:
-	* win/configure.in:
-	* README
-
-	* unix/configure:	autoconf (2.59)
-	* win/configure:
-
-2008-02-12  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* generic/tclCompCmds.c (TclCompileSwitchCmd): Corrected logic for
-	* tests/switch.test (switch-10.15): handling -nocase compilation; the
-	-exact -nocase option cannot be compiled currently. [Bug 1891827]
-
-	* unix/README: Documented missing configure flags. [Bug 1799011]
-
-2008-02-06  Kevin B. Kenny  <kennykb@acm.org>
-
-	* doc/clock.n (%N): Corrected an error in the explanation of the %N
-	format group.
-	* generic/tclClock.c (ClockParseformatargsObjCmd):
-	* library/clock.tcl (::tcl::clock::format):
-	* tests/clock.test (clock-1.0, clock-1.4):
-	Performance enhancements in [clock format] (moving the analysis of
-	$args into C code, holding on to Tcl_Objs with resolved command names,
-	[lassign] in place of [foreach], avoiding [namespace which] for
-	command resolution).
-
-2008-02-04  Don Porter  <dgp@users.sourceforge.net>
-
-	*** 8.5.1 TAGGED FOR RELEASE ***
-
-	* changes:		Updated for 8.5.1 release.
-
-	* generic/tcl.h:	Bump to 8.5.1 for release.
-	* library/init.tcl:
-	* tools/tcl.wse.in:
-	* unix/configure.in:
-	* unix/tcl.spec:
-	* win/configure.in:
-
-	* unix/configure:	autoconf-2.59
-	* win/configure:
-
-2008-02-04  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclExecute.c (INST_CONCAT1): Fix optimisation for in-place
-	concatenation (was going over String type)
-
-2008-02-02  Daniel Steffen  <das@users.sourceforge.net>
-
-	* unix/configure.in (Darwin):	Correct Info.plist year substitution
-					in non-framework builds.
-
-	* unix/configure:		autoconf-2.59
-
-2008-01-30  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclInterp.c (Tcl_GetAlias): Fix for [Bug 1882373], thanks go
-	to an00na.
-
-2008-01-30  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* tools/tcltk-man2html.tcl: Reworked manual page scraper to do a
-	proper job of handling references to Ttk options. [Tk Bug 1876493]
-
-2008-01-29  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
-
-	* doc/man.macros (SO, SE): Adjusted macros so that it is possible for
-	Ttk to have its "standard options" on a manual page that is not called
-	"options". [Tk Bug 1876493]
-
-2008-01-25  Don Porter  <dgp@users.sourceforge.net>
-
-	* changes:		Updated for 8.5.1 release.
-
-2008-01-23  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclInt.h:		New macro TclGrowParseTokenArray() to
-	* generic/tclCompCmds.c:	simplify code that might need to grow
-	* generic/tclCompExpr.c:	an array of Tcl_Tokens in the parsePtr
-	* generic/tclParse.c:		field of a Tcl_Parse. Replaces the
-	TclExpandTokenArray() routine via replacing:
-		int needed = parsePtr->numTokens + growth;
-		while (needed > parsePtr->tokensAvailable) {
-		    TclExpandTokenArray(parsePtr);
-		}
-	with:
-		TclGrowParseTokenArray(parsePtr, growth);
-	This revision merged over from dgp-refactor branch.
-
-	* generic/tclCompile.h:	Demote TclCompEvalObj() from internal stubs to
-	* generic/tclInt.decls:	a MODULE_SCOPE routine declared in
-	tclCompile.h.
-
-	* generic/tclIntDecls.h:	make genstubs
-	* generic/tclStubInit.c:
-
-2008-01-22  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclTimer.c (AfterProc):	Replace Tcl_EvalEx() with
-	Tcl_EvalObjEx() to evaluate [after] callbacks. Part of trend to favor
-	compiled execution over direct evaluation.
-
-2008-01-22  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCmdIl.c (Tcl_LreverseObjCmd):
-	* tests/cmdIL.test (cmdIL-7.7): Fix crash on reversing an empty list.
-	[Bug 1876793]
-
-2008-01-20  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* unix/README: Minor typo fixes [Bug 1853072]
-
-	* generic/tclIO.c (TclGetsObjBinary): Operate on topmost channel.
-	[Bug 1869405] (Ficicchia)
-
-2008-01-17  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclCompExpr.c:	Revision to preserve parsed intreps of
-	numeric and boolean literals when compiling expressions with (optimize
-	== 1).
-
-2008-01-15  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclCompExpr.c: Add an 'optimize' argument to
-	* generic/tclCompile.c:	 TclCompileExpr() to profit from better
-	* generic/tclCompile.h:	 literal management according to usage.
-	* generic/tclExecute.c:
-
-	* generic/tclCompExpr.c: Fix literal leak in exprs [Bug 1869989] (dgp)
-	* generic/tclExecute.c:
-	* tests/compExpr.test:
-
-	* doc/proc.n: Changed wording for access to non-local variables; added
-	mention to [namespace upvar]. Lame attempt at dealing with
-	documentation. [Bug 1872708]
-
-2008-01-15  Miguel Sofer  <msofer@users.sf.net>
-
-	* generic/tclBasic.c:	 Replacing 'operator' by 'op' in the def of
-	* generic/tclCompExpr.c: struct TclOpCmdClientData to accommodate C++
-	* generic/tclCompile.h:	 compilers. [Bug 1855644]
-
-2008-01-13  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* win/tclWinSerial.c (SerialCloseProc, TclWinOpenSerialChannel): Use
-	critical section for read & write side. [Bug 1353846] (newman)
-
-2008-01-11  Miguel Sofer  <msofer@users.sf.net>
-
-	* unix/tclUnixThrd.c (TclpThreadGetStackSize): Restore stack checking
-	functionality in freebsd. [Bug 1850424]
-
-	* unix/tclUnixThrd.c (TclpThreadGetStackSize): Fix for crash in
-	freebsd. [Bug 1860425]
-
-2008-01-10  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tclStringObj.c (Tcl_AppendFormatToObj):  Correct failure to
-	* tests/format.test:	account for big.used == 0 corner case in the
-	%ll(idox) format directives. [Bug 1867855]
-
-2008-01-09  George Peter Staplin  <georgeps@xmission.com>
-
-	* doc/vwait.n: Add a missing be to fix a typo.
-
-2008-01-04  Jeff Hobbs  <jeffh@ActiveState.com>
-
-	* tools/tcltk-man2html.tcl (make-man-pages): Make man page title use
-	more specific info on lhs to improve tabbed browser view titles.
-
-2008-01-02  Donal K. Fellows  <dkf@users.sf.net>
-
-	* doc/binary.n: Fixed documentation bug reported on tcl-core, and
-	reordered documentation to discourage people from using the hex
-	formatter that is hardly ever useful.
-
-2008-01-02  Don Porter  <dgp@users.sourceforge.net>
-
-	* generic/tcl.h:	Bump version number to 8.5.1b1 to distinguish
-	* library/init.tcl:	CVS development snapshots from the 8.5.0 and
-	* unix/configure.in:	8.5.1 releases.
-	* unix/tcl.spec:
-	* win/configure.in:
-	* README
-
-	* unix/configure:	autoconf (2.59)
-	* win/configure:
-
-	******************************************************************
-	*** CHANGELOG ENTRIES FOR 2006-2007 IN "ChangeLog.2007"        ***
-	*** CHANGELOG ENTRIES FOR 2005 IN "ChangeLog.2005"             ***
-	*** CHANGELOG ENTRIES FOR 2004 IN "ChangeLog.2004"             ***
-	*** CHANGELOG ENTRIES FOR 2003 IN "ChangeLog.2003"             ***
-	*** CHANGELOG ENTRIES FOR 2002 IN "ChangeLog.2002"             ***
-	*** CHANGELOG ENTRIES FOR 2001 IN "ChangeLog.2001"             ***
-	*** CHANGELOG ENTRIES FOR 2000 IN "ChangeLog.2000"             ***
-	*** CHANGELOG ENTRIES FOR 1999 AND EARLIER IN "ChangeLog.1999" ***
-	******************************************************************
diff --git a/README.md b/README.md
index 24871c0..35819a7 100644
--- a/README.md
+++ b/README.md
@@ -1,13 +1,19 @@
 # README:  Tcl
 
-This is the **Tcl 8.5.19** source distribution.
+This is the **Tcl 9.1a0** source distribution.
 
 You can get any source release of Tcl from [our distribution
 site](https://sourceforge.net/projects/tcl/files/Tcl/).
 
-[![Build Status](https://github.com/tcltk/tcl/workflows/Linux/badge.svg?branch=core-8-5-branch)](https://github.com/tcltk/tcl/actions?query=workflow%3A%22Linux%22+branch%3Acore-8-5-branch)
-[![Build Status](https://github.com/tcltk/tcl/workflows/Windows/badge.svg?branch=core-8-5-branch)](https://github.com/tcltk/tcl/actions?query=workflow%3A%22Windows%22+branch%3Acore-8-5-branch)
-[![Build Status](https://github.com/tcltk/tcl/workflows/macOS/badge.svg?branch=core-8-5-branch)](https://github.com/tcltk/tcl/actions?query=workflow%3A%22macOS%22+branch%3Acore-8-5-branch)
+9.1 (in development, daily build)
+[![Build Status](https://github.com/tcltk/tcl/actions/workflows/linux-build.yml/badge.svg?branch=main)](https://github.com/tcltk/tcl/actions/workflows/linux-build.yml?query=branch%3Amain)
+[![Build Status](https://github.com/tcltk/tcl/actions/workflows/win-build.yml/badge.svg?branch=main)](https://github.com/tcltk/tcl/actions/workflows/win-build.yml?query=branch%3Amain)
+[![Build Status](https://github.com/tcltk/tcl/actions/workflows/mac-build.yml/badge.svg?branch=main)](https://github.com/tcltk/tcl/actions/workflows/mac-build.yml?query=branch%3Amain)
+<br>
+9.0 (production release, daily build)
+[![Build Status](https://github.com/tcltk/tcl/actions/workflows/linux-build.yml/badge.svg?branch=core-9-0-branch)](https://github.com/tcltk/tcl/actions/workflows/linux-build.yml?query=branch%3Acore-9-0-branch)
+[![Build Status](https://github.com/tcltk/tcl/actions/workflows/win-build.yml/badge.svg?branch=core-9-0-branch)](https://github.com/tcltk/tcl/actions/workflows/win-build.yml?query=branch%3Acore-9-0-branch)
+[![Build Status](https://github.com/tcltk/tcl/actions/workflows/mac-build.yml/badge.svg?branch=core-9-0-branch)](https://github.com/tcltk/tcl/actions/workflows/mac-build.yml?query=branch%3Acore-9-0-branch)
 
 ## Contents
  1. [Introduction](#intro)
@@ -31,21 +37,21 @@ powerful command languages for applications.
 
 Tcl is maintained, enhanced, and distributed freely by the Tcl community.
 Source code development and tracking of bug reports and feature requests
-takes place at [core.tcl-lang.org](https://core.tcl-lang.org/).
+take place at [core.tcl-lang.org](https://core.tcl-lang.org/).
 Tcl/Tk release and mailing list services are [hosted by
 SourceForge](https://sourceforge.net/projects/tcl/)
 with the Tcl Developer Xchange hosted at
 [www.tcl-lang.org](https://www.tcl-lang.org).
 
-Tcl is a freely available open source package.  You can do virtually
+Tcl is a freely available open-source package.  You can do virtually
 anything you like with it, such as modifying it, redistributing it,
 and selling it either in whole or in part.  See the file
 `license.terms` for complete information.
 
 ## <a id="doc">2.</a> Documentation
-Extensive documentation is available at our website.
+Extensive documentation is available on our website.
 The home page for this release, including new features, is
-[here](https://www.tcl.tk/software/tcltk/8.5.html).
+[here](https://www.tcl-lang.org/software/tcltk/9.1.html).
 Detailed release notes can be found at the
 [file distributions page](https://sourceforge.net/projects/tcl/files/Tcl/)
 by clicking on the relevant version.
@@ -55,8 +61,8 @@ Xchange](https://www.tcl-lang.org/about/).
 There have been many Tcl books on the market.  Many are mentioned in
 [the Wiki](https://wiki.tcl-lang.org/_/ref?N=25206).
 
-The complete set of reference manual entries for Tcl 8.5 is [online,
-here](https://www.tcl-lang.org/man/tcl8.5/).
+The complete set of reference manual entries for Tcl 9.1 is [online,
+here](https://www.tcl-lang.org/man/tcl9.1/).
 
 ### <a id="doc.unix">2a.</a> Unix Documentation
 The `doc` subdirectory in this release contains a complete set of
@@ -90,16 +96,16 @@ about building Tcl from sources
 [online](https://www.tcl-lang.org/doc/howto/compile.html).
 
 ## <a id="devtools">4.</a> Development tools
-ActiveState produces a high quality set of commercial quality development
+ActiveState produces a high-quality set of commercial quality development
 tools that is available to accelerate your Tcl application development.
 Tcl Dev Kit builds on the earlier TclPro toolset and provides a debugger,
-static code checker, single-file wrapping utility, bytecode compiler and
+static code checker, single-file wrapping utility, bytecode compiler, and
 more.  More information can be found at
 
-	http://www.ActiveState.com/Tcl
+	https://www.activestate.com/products/tcl/
 
 ## <a id="complangtcl">5.</a> Tcl newsgroup
-There is a USENET news group, "`comp.lang.tcl`", intended for the exchange of
+There is a USENET newsgroup, "`comp.lang.tcl`", intended for the exchange of
 information about Tcl, Tk, and related applications.  The newsgroup is a
 great place to ask general information questions.  For bug reports, please
 see the "Support and bug fixes" section below.
diff --git a/changes b/changes
deleted file mode 100644
index 88de973..0000000
--- a/changes
+++ /dev/null
@@ -1,7980 +0,0 @@
-Recent user-visible changes to Tcl:
-
-1. No more [command1] [command2] construct for grouping multiple
-commands on a single command line.
-
-2. Semi-colon now available for grouping commands on a line.
-
-3. For a command to span multiple lines, must now use backslash-return
-at the end of each line but the last.
-
-4. "Var" command has been changed to "set".
-
-5. Double-quotes now available as an argument grouping character.
-
-6. "Return" may be used at top-level.
-
-7. More backslash sequences available now.  In particular, backslash-newline
-may be used to join lines in command files.
-
-8. New or modified built-in commands:  case, return, for, glob, info,
-print, return, set, source, string, uplevel.
-
-9. After an error, the variable "errorInfo" is filled with a stack
-trace showing what was being executed when the error occurred.
-
-10. Command abbreviations are accepted when parsing commands, but
-are not recommended except for purely-interactive commands.
-
-11. $, set, and expr all complain now if a non-existent variable is
-referenced.
-
-12. History facilities exist now.  See Tcl.man and Tcl_RecordAndEval.man.
-
-13. Changed to distinguish between empty variables and those that don't
-exist at all.  Interfaces to Tcl_GetVar and Tcl_ParseVar have changed
-(NULL return value is now possible).  *** POTENTIAL INCOMPATIBILITY ***
-
-14. Changed meaning of "level" argument to "uplevel" command (1 now means
-"go up one level", not "go to level 1"; "#1" means "go to level 1").
-*** POTENTIAL INCOMPATIBILITY ***
-
-15. 3/19/90 Added "info exists" option to see if variable exists.
-
-16. 3/19/90 Added "noAbbrev" variable to prohibit command abbreviations.
-
-17. 3/19/90 Added extra errorInfo option to "error" command.
-
-18. 3/21/90 Double-quotes now only affect space:  command, variable,
-and backslash substitutions still occur inside double-quotes.
-*** POTENTIAL INCOMPATIBILITY ***
-
-19. 3/21/90 Added support for \r.
-
-20. 3/21/90 List, concat, eval, and glob commands all expect at least
-one argument now.  *** POTENTIAL INCOMPATIBILITY ***
-
-21. 3/22/90 Added "?:" operators to expressions.
-
-22. 3/25/90 Fixed bug in Tcl_Result that caused memory to get trashed.
-
-------------------- Released version 3.1 ---------------------
-
-23. 3/29/90 Fixed bug that caused "file a.b/c ext" to return ".b/c".
-
-24. 3/29/90 Semi-colon is not treated specially when enclosed in
-double-quotes.
-
-------------------- Released version 3.2 ---------------------
-
-25. 4/16/90 Rewrote "exec" not to use select or signals anymore.
-Should be more Sys-V compatible, and no slower in the normal case.
-
-26. 4/18/90 Rewrote "glob" to eliminate GNU code (there's no GNU code
-left in Tcl, now), and added Tcl_TildeSubst procedure.  Added automatic
-tilde-substitution in many commands, including "glob".
-
-------------------- Released version 3.3 ---------------------
-
-27. 7/11/90 Added "Tcl_AppendResult" procedure.
-
-28. 7/20/90 "History" with no options now defaults to "history info"
-rather than to "history redo".  Although this is a backward incompatibility,
-it should only be used interactively and thus shouldn't present any
-compatibility problems with scripts.
-
-29. 7/20/90 Added "Tcl_GetInteger", "Tcl_GetDouble", and "Tcl_GetBoolean"
-procedures.
-
-30. 7/22/90 Removed "Tcl_WatchInterp" procedure:  doesn't seem to be
-necessary, since the same effect can be achieved with the deletion
-callbacks on individual commands.  *** POTENTIAL INCOMPATIBILITY ***
-
-31. 7/23/90 Added variable tracing:  Tcl_TraceVar, Tcl_UnTraceVar,
-and Tcl_VarTraceInfo procedures, "trace" command.
-
-32. 8/9/90 Mailed out list of all bug fixes since 3.3 release.
-
-33. 8/29/90 Fixed bugs in Tcl_Merge relating to backslashes and
-semi-colons.  Mailed out patch.
-
-34. 9/3/90 Fixed bug in tclBasic.c: quotes weren't quoting ]'s.
-Mailed out patch.
-
-35. 9/19/90 Rewrote exec to always use files both for input and
-output to the process.  The old pipe-based version didn't work if
-the exec'ed process forked a child and then exited:  Tcl waited
-around for stdout to get closed, which didn't happen until the
-grandchild exited.
-
-36. 11/5/90 ERR_IN_PROGRESS flag wasn't being cleared soon enough
-in Tcl_Eval, allowing error messages from different commands to
-pile up in $errorInfo.  Fixed by re-arranging code in Tcl_Eval that
-re-initializes result and ERR_IN_PROGRESS flag.  Didn't mail out
-patch:  changes too complicated to describe.
-
-37. 12/19/90 Added Tcl_VarEval procedure as a convenience for
-assembling and executing Tcl commands.
-
-38. 1/29/91 Fixed core leak in Tcl_AddErrorInfo.  Also changed procedure
-and Tcl_Eval so that first call to Tcl_AddErrorInfo need not come from
-Tcl_Eval.
-
------------------ Released version 5.0 with Tk ------------------
-
-39. 4/3/91 Removed change bars from manual entries, leaving only those
-that came after version 3.3 was released.
-
-40. 5/17/91 Changed tests to conform to Mary Ann May-Pumphrey's approach.
-
-41. 5/23/91 Massive revision to Tcl parser to simplify the implementation
-of string and floating-point support in expressions.  Newlines inside
-[] are now treated as command separators rather than word separators
-(this makes newline treatment consistent throughout Tcl).
-*** POTENTIAL INCOMPATIBILITY ***
-
-42. 5/23/91 Massive rewrite of expression code to support floating-point
-values and simple string comparisons.  The C interfaces to expression
-routines have changed (Tcl_Expr is replaced by Tcl_ExprLong, Tcl_ExprDouble,
-etc.), but all old Tcl expression strings should be accepted by the new
-expression code.
-*** POTENTIAL INCOMPATIBILITY ***
-
-43. 5/23/91 Modified tclHistory.c to check for negative "keep" value.
-
-44. 5/23/91 Modified Tcl_Backslash to handle backslash-newline.  It now
-returns 0 to indicate that a backslash sequence should be replaced by
-no character at all.
-*** POTENTIAL INCOMPATIBILITY ***
-
-45. 5/29/91 Modified to use ANSI C function prototypes.  Must set
-"USE_ANSI" switch when compiling to get prototypes.
-
-46. 5/29/91 Completed test suite by providing tests for all of the
-built-in Tcl commands.
-
-47. 5/29/91 Changed Tcl_Concat to eliminate leading and trailing
-white-space in each of the things it concatenates and to ignore
-elements that are empty or have only white space in them.  This
-produces cleaner output from the "concat" command.
-*** POTENTIAL INCOMPATIBILITY ***
-
-48. 5/31/91 Changed "set" command and Tcl_SetVar procedure to return
-new value of variable.
-
-49. 6/1/91 Added "while" and "cd" commands.
-
-50. 6/1/91 Changed "exec" to delete the last character of program
-output if it is a newline.  In most cases this makes it easier to
-process program-generated output.
-*** POTENTIAL INCOMPATIBILITY ***
-
-51. 6/1/91 Made sure that pointers are never used after freeing them.
-
-52. 6/1/91 Fixed bug in TclWordEnd where it wasn't dealing with
-[] inside quotes correctly.
-
-53. 6/8/91 Fixed exec.test to accept return values of either 1 or
-255 from "false" command.
-
-54. 7/6/91 Massive overhaul of variable management.  Associative
-arrays now available, along with "unset" command (and Tcl_UnsetVar
-procedure).  Variable traces have been completely reworked:
-interfaces different both from Tcl and C, and multiple traces may
-exist on same variable.  Can no longer redefine existing local
-variable to be global.  Calling sequences have changed slightly
-for Tcl_GetVar and Tcl_SetVar ("global" is now "flags"). Tcl_SetVar
-can fail and return a NULL result.  New forms of variable-manipulation
-procedures:  Tcl_GetVar2, Tcl_SetVar2, etc.  Syntax of variable
-$-notation changed to support array indexing.
-*** POTENTIAL INCOMPATIBILITY ***
-
-55. 7/6/91 Added new list-manipulation procedures:  Tcl_ScanElement,
-Tcl_ConvertElement, Tcl_AppendElement.
-
-56. 7/12/91 Created new procedure Tcl_EvalFile, which does most of the
-work of the "source" command.
-
-57. 7/20/91 Major reworking of "exec" command to allow pipelines,
-more redirection, background.  Added new procedures Tcl_Fork,
-Tcl_WaitPids, Tcl_DetachPids, and Tcl_CreatePipeline.  The old
-"< input" notation has been replaced by "<< input" ("<" is for
-redirection from a file).  Also handles error returns and abnormal
-terminations (e.g. signals) differently.
-*** POTENTIAL INCOMPATIBILITY ***
-
-58. 7/21/91 Added "append" and "lappend" commands.
-
-59. 7/22/91 Reworked error messages and manual entries to use
-?x? as the notation for an optional argument x, instead of [x].  The
-bracket notation was often confused with the use of brackets for
-command substitution.  Also modified error messages to be more
-consistent.
-
-60. 7/23/91 Tcl_DeleteCommand now returns an indication of whether
-or not the command actually existed, and the "rename" command uses
-this information to return an error if an attempt is made to delete
-a non-existent command.
-*** POTENTIAL INCOMPATIBILITY ***
-
-61. 7/25/91 Added new "errorCode" mechanism, along with procedures
-Tcl_SetErrorCode, Tcl_UnixError, and Tcl_ResetResult.  Renamed
-Tcl_Return to Tcl_SetResult, but left a #define for Tcl_Return to
-avoid compatibility problems.
-
-62. 7/26/91 Extended "case" command with alternate syntax where all
-patterns and commands are together in a single list argument:  makes
-it easier to write multi-line case statements.
-
-63. 7/27/91 Changed "print" command to perform tilde-substitution on
-the file name.
-
-64. 7/27/91 Added "tolower", "toupper", "trim", "trimleft", and "trimright"
-options to "string" command.
-
-65. 7/29/91 Added "atime", "mtime", "size", and "stat" options to "file"
-command.
-
-66. 8/1/91 Added "split" and "join" commands.
-
-67. 8/11/91 Added commands for file I/O, including "open", "close",
-"read", "gets", "puts", "flush", "eof", "seek", and "tell".
-
-68. 8/14/91 Switched to use a hash table for command lookups.  Command
-abbreviations no longer have direct support in the Tcl interpreter, but
-it should be possible to simulate them with the auto-load features
-described below.  The "noAbbrev" variable is no longer used by Tcl.
-*** POTENTIAL INCOMPATIBILITY ***
-
-68.5 8/15/91 Added support for "unknown" command, which can be used to
-complete abbreviations, auto-load library files, auto-exec shell
-commands, etc.
-
-69. 8/15/91 Added -nocomplain switch to "glob" command.
-
-70. 8/20/91 Added "info library" option and TCL_LIBRARY #define.  Also
-added "info script" option.
-
-71. 8/20/91 Changed "file" command to take "option" argument as first
-argument (before file name), for consistency with other Tcl commands.
-*** POTENTIAL INCOMPATIBILITY ***
-
-72. 8/20/91 Changed format of information in $errorInfo variable:
-comments such as
-    ("while" body line 1)
-are now on separate lines from commands being executed.
-*** POTENTIAL INCOMPATIBILITY ***
-
-73. 8/20/91 Changed Tcl_AppendResult so that it (eventually) frees
-large buffers that it allocates.
-
-74. 8/21/91 Added "linsert", "lreplace", "lsearch", and "lsort"
-commands.
-
-75. 8/28/91 Added "incr" and "exit" commands.
-
-76. 8/30/91 Added "regexp" and "regsub" commands.
-
-77. 9/4/91 Changed "dynamic" field in interpreters to "freeProc" (procedure
-address).  This allows for alternative storage managers.
-*** POTENTIAL INCOMPATIBILITY ***
-
-78. 9/6/91 Added "index", "length", and "range" options to "string"
-command.  Added "lindex", "llength", and "lrange" commands.
-
-79. 9/8/91 Removed "index", "length", "print" and "range" commands.
-"Print" is redundant with "puts", but less general, and the other
-commands are replaced with the new commands described in change 78
-above.
-*** POTENTIAL INCOMPATIBILITY ***
-
-80. 9/8/91 Changed history revision to occur even when history command
-is nested;  needed in order to allow "history" to be invoked from
-"unknown" procedure.
-
-81. 9/13/91 Changed "panic" not to use vfprintf (it's uglier and less
-general now, but makes it easier to run Tcl on systems that don't
-have vfprintf).  Also changed "strerror" not to redeclare sys_errlist.
-
-82. 9/19/91 Lots of changes to improve portability to different UNIX
-systems, including addition of "config" script to adapt Tcl to the
-configuration of the system it's being compiled on.
-
-83. 9/22/91 Added "pwd" command.
-
-84. 9/22/91 Renamed manual pages so that their filenames are no more
-than 14 characters in length, moved to "doc" subdirectory.
-
-85. 9/24/91 Redid manual entries so they contain the supplemental
-macros that they need;  can just print with "troff -man" or "man"
-now.
-
-86. 9/26/91 Created initial version of script library, including
-a version of "unknown" that does auto-loading, auto-execution, and
-abbreviation expansion.  This library is used by tclTest
-automatically.  See the "library" manual entry for details.
-
------------------ Released version 6.0, 9/26/91 ------------------
-
-87. 9/30/91 Made "string tolower" and "string toupper" check case
-before converting:  on some systems, "tolower" and "toupper" assume
-that character already has particular case.
-
-88. 9/30/91 Fixed bug in Tcl_SetResult:  wasn't always setting freeProc
-correctly when called with NULL value.  This tended to cause memory
-allocation errors later.
-
-89. 10/3/91 Added "upvar" command.
-
-90. 10/4/91 Changed "format" so that internally it converts %D to %ld,
-%U to %lu, %O to %lo, and %F to %f.  This eliminates some compatibility
-problems on some machines without affecting behavior.
-
-91. 10/10/91 Fixed bug in "regsub" that caused core dumps with the -all
-option when the last match wasn't at the end of the string.
-
-92. 10/17/91 Fixed problems with backslash sequences:  \r support was
-incomplete and \f and \v weren't supported at all.
-
-93. 10/24/91 Added Tcl_InitHistory procedure.
-
-94. 10/24/91 Changed "regexp" to store "-1 -1" in subMatchVars that
-don't match, rather than returning an error.
-
-95. 10/27/91 Modified "regexp" to return actual strings in matchVar
-and subMatchVars instead of indices.  Added "-indices" switch to cause
-indices to be returned.
-*** POTENTIAL INCOMPATIBILITY ***
-
-96. 10/27/91 Fixed bug in "scan" where it used hardwired constants for
-sizes of floats and doubles instead of using "sizeof".
-
-97. 10/31/91 Fixed bug in tclParse.c where parse-related error messages
-weren't being storage-managed correctly, causing spurious free's.
-
-98. 10/31/91 Form feed and vertical tab characters are now considered
-to be space characters by the parser.
-
-99. 10/31/91 Added TCL_LEAVE_ERR_MSG flag to procedures like Tcl_SetVar.
-
-100. 11/7/91 Fixed bug in "case" where "in" argument couldn't be omitted
-if all case branches were embedded in a single list.
-
-101. 11/7/91 Switched to use "pid_t" and "uid_t" and other official
-POSIC types and function prototypes.
-
------------------ Released version 6.1, 11/7/91 ------------------
-
-102. 12/2/91 Modified Tcl_ScanElement and Tcl_ConvertElement in several
-ways.  First, allowed caller to request that only backslashes be used
-(no braces).  Second, made Tcl_ConvertElement more aggressive in using
-backslashes for braces and quotes.
-
-103. 12/5/91 Added "type", "lstat", and "readlink" options to "file"
-command, plus added new "type" element to output of "stat" and "lstat"
-options.
-
-104. 12/10/91 Manual entries had first lines that caused "man" program
-to try weird preprocessor.  Added blank comment lines to fix problem.
-
-105. 12/16/91 Fixed a few bugs in auto_mkindex proc:  wasn't handling
-errors properly, and hadn't been upgraded for new "regexp" syntax.
-
-106. 1/2/92 Fixed bug in "file" command where it didn't properly handle
-a file names containing tildes where the indicated user doesn't exist.
-
-107. 1/2/92 Fixed lots of cases in tclUnixStr.c where two different
-errno symbols (e.g. EWOULDBLOCK and EAGAIN) have the same number;  Tcl
-will only use one of them.
-
-108. 1/2/92 Lots of changes to configuration script to handle many more
-systems more gracefully.  E.g. should now detect the bogus strtoul that
-comes with AIX and substitute Tcl's own version instead.
-
------------------ Released version 6.2, 1/10/92 ------------------
-
-109. 1/20/92 Config didn't have code to actually use "uid_t" variable
-to set TCL_UIT_T #define.
-
-110. 2/10/92 Tcl_Eval didn't properly reset "numLevels" variable when
-too-deep recursion occurred.
-
-111. 2/29/92 Added "on" and "off" to keywords accepted by Tcl_GetBoolean.
-
-112. 3/19/92 Config wasn't installing default version of strtod.c for
-systems that don't have one in libc.a.
-
-113. 3/23/92 Fixed bug in tclExpr.c where numbers with leading "."s,
-like 0.75, couldn't be properly substituted into expressions with
-variable or command substitution.
-
-114. 3/25/92 Fixed bug in tclUnixAZ.c where "gets" command wasn't
-checking to make sure that it was able to write the variable OK.
-
-115. 4/16/92 Fixed bug in tclUnixAZ.c where "read" command didn't
-compute file size right for device files.
-
-116. 4/23/92 Fixed but in tclCmdMZ.c where "trace vinfo" was overwriting
-the trace command.
-
------------------ Released version 6.3, 5/1/92 ------------------
-
-117. 5/1/92 Added Tcl_GlobalEval.
-
-118. 6/1/92 Changed auto-load facility to source files at global level.
-
-119. 6/8/92 Tcl_ParseVar wasn't always setting termPtr after errors, which
-sometimes caused core dumps.
-
-120. 6/21/92 Fixed bug in initialization of regexp pattern cache.  This
-bug caused segmentation violations in regexp commands under some conditions.
-
-121. 6/22/92 Changed implementation of "glob" command to eliminate
-trailing slashes on directory names:  they confuse some systems.  There
-shouldn't be any user-visible changes in functionality except for names
-in error messages not having trailing slashes.
-
-122. 7/2/92 Fixed bug that caused 'string match ** ""' to return 0.
-
-123. 7/2/92 Fixed bug in Tcl_CreateCmdBuf where it wasn't initializing
-the buffer to an empty string.
-
-124. 7/6/92 Fixed bug in "case" command where it used NULL pattern string
-after errors in the "default" clause.
-
-125. 7/25/92 Speeded up auto_load procedure:  don't reread all the index
-files unless the path has changed.
-
-126. 8/3/92 Changed tclUnix.h to define MAXPATHLEN from PATH_MAX, not
-_POSIX_PATH_MAX.
-
------------------ Released version 6.4, 8/7/92 ------------------
-
-127. 8/10/92 Changed tclBasic.c so that comment lines can be continued by
-putting a backslash before the newline.
-
-128. 8/21/92 Modified "unknown" to allow the source-ing of a file for
-an auto-load to trigger other nested auto-loads, as long as there isn't
-any recursion on the same command name.
-
-129. 8/25/92 Modified "format" command to allow " " and "+" flags, and
-allow flags in any order.
-
-130. 9/14/92 Modified Tcl_ParseVar so that it doesn't actually attempt
-to look up the variable if "noEval" mode is in effect in the interpreter
-(it just parses the name).  This avoids the errors that used to occur
-in statements like "expr {[info exists foo] && $foo}".
-
-131. 9/14/92 Fixed bug in "uplevel" command where it didn't output the
-correct error message if a level was specified but no command.
-
-132. 9/14/92 Renamed manual entries to have extensions like .3 and .n,
-and added "install" target to Makefile.
-
-133. 9/18/92 Modified "unknown" command to emulate !!, !<num>, and
-^<old>^<new> csh history substitutions.
-
-134. 9/21/92 Made the config script cleverer about figuring out which
-switches to pass to "nm".
-
-135. 9/23/92 Fixed tclVar.c to be sure to copy flags when growing variables.
-Used to forget about traces in progress and make extra recursive calls
-on trace procs.
-
-136. 9/28/92 Fixed bug in auto_reset where it was unsetting variables
-that might not exist.
-
-137. 10/7/92 Changed "parray" library procedure to print any array
-accessible to caller, local or global.
-
-138. 10/15/92 Fixed bug where propagation of new environment variable
-values among interpreters took N! time if there exist N interpreters.
-
-139. 10/16/92 Changed auto_reset procedure so that it also deletes any
-existing procedures that are in the auto_load index (the assumption is
-that they should be re-loaded to get the latest versions).
-
-140. 10/21/92 Fixed bug that caused lists to be incorrectly generated
-for elements that contained backslash-newline sequences.
-
-141. 12/9/92 Added support for TCL_LIBRARY environment variable:  use
-it as library location if it's present.
-
-142. 12/9/92 Added "info complete" command, Tcl_CommandComplete procedure.
-
-143. 12/16/92 Changed the Makefile to check to make sure "config" has been
-run (can't run config directly from the Makefile because it modifies the
-Makefile;  thus make has to be run again after running config).
-
------------------ Released version 6.5, 12/17/92 ------------------
-
-144. 12/21/92 Changed config to look in several places for libc file.
-
-145. 12/23/92 Added "elseif" support to if.  Also, "then", "else", and
-"elseif" may no longer be abbreviated.
-*** POTENTIAL INCOMPATIBILITY ***
-
-146. 12/28/92 Changed "puts" and "read" to support initial "-nonewline"
-switch instead of additional "nonewline" argument.  The old form is
-still supported, but it is discouraged and is no longer documented.
-Also changed "puts" to make the file argument default to stdout: e.g.
-"puts foo" will print foo on standard output.
-
-147. 1/6/93 Fixed bug whereby backslash-newline wasn't working when
-typed interactively, or in "info complete".
-
-148. 1/22/93 Fixed bugs in "lreplace" and "linsert" where close
-quotes were being lost from last element before replacement or
-insertion.
-
-149. 1/29/93 Fixed bug in Tcl_AssembleCmd where it wasn't requiring
-a newline at the end of a line before considering a command to be
-complete.  The bug caused some very long lines in script files to
-be processed as multiple separate commands.
-
-150. 1/29/93 Various changes in Makefile to add more configuration
-options, simplify installation, fix bugs (e.g. don't use -f switch
-for cp), etc.
-
-151. 1/29/93 Changed "name1" and "name2" identifiers to "part1" and
-"part2" to avoid name conflicts with stupid C++ implementations that
-use "name1" and "name2" in a reserved way.
-
-152. 2/1/93 Added "putenv" procedure to replace the standard system
-version so that it will work correctly with Tcl's environment handling.
-
------------------ Released version 6.6, 2/5/93 ------------------
-
-153. 2/10/93 Fixed bugs in config script:  missing "endif" in libc loop,
-and tried to use strncasecmp.c instead of strcasecmp.c.
-
-154. 2/10/93 Makefile improvements:  added RANLIB variable for easier
-Sys-V configuration, added SHELL variable for SGI systems.
-
------------------ Released version 6.7, 2/11/93 ------------------
-
-153. 2/6/93 Changes in backslash processing:
-    - \Cx, \Mx, \CMx, \e sequences no longer special
-    - \<newline> also eats up any space after the newline, replacing
-      the whole sequence with a single space character
-    - Hex sequences like \x24 are now supported, along with ANSI C's \a.
-    - "format" no longer does backslash processing on its format string
-    - there is no longer any special meaning to a 0 return value from
-      Tcl_Backslash
-    - unknown backslash sequences, like (e.g. \*), are replaced with
-      the following character (e.g. *), instead of just treating the
-      backslash as an ordinary character.
-*** POTENTIAL INCOMPATIBILITY ***
-
-154. 2/6/93 Updated all copyright notices.  The meaning hasn't changed
-at all but the wording does a better job of protecting U.C. from
-liability (according to U.C. lawyers, anyway).
-
-155. 2/6/93 Changed "regsub" so that it overwrites the result variable
-in all cases, even if there is no match.
-*** POTENTIAL INCOMPATIBILITY ***
-
-156. 2/8/93 Added support for XPG3 %n$ conversion specifiers to "format"
-command.
-
-157. 2/17/93 Fixed bug in Tcl_Eval where errors due to infinite
-recursion could result in core dumps.
-
-158. 2/17/93 Improved the auto-load mechanism to deal gracefully (i.e.
-return an error) with a situation where a library file that supposedly
-defines a procedure doesn't actually define it.
-
-159. 2/17/93 Renamed Tcl_UnixError procedure to Tcl_PosixError, and
-changed errorCode variable usage to use POSIX as keyword instead of
-UNIX.
-*** POTENTIAL INCOMPATIBILITY ***
-
-160. 2/19/93 Changes to exec and process control:
-    - Added support for >>, >&, >>&, |&, <@, >@, and >&@ forms of redirection.
-    - When exec puts processes into background, it returns a list of
-      their pids as result.
-    - Added support for <file, >file, etc. (i.e. no space between
-      ">" and file name.
-    - Added -keepnewline option.
-    - Deleted Tcl_Fork and Tcl_WaitPids procedures (just use fork and
-      waitpid instead).
-    - Added waitpid compatibility procedure for systems that don't have
-      it.
-    - Added Tcl_ReapDetachedProcs procedure.
-    - Changed "exec" to return an error if there is stderr output, even
-      if the command returns a 0 exit status (it's always been documented
-      this way, but the implementation wasn't correct).
-    - If a process returns a non-zero exit status but doesn't generate
-      any diagnostic output, then Tcl generates an error message for it.
-*** POTENTIAL INCOMPATIBILITY ***
-
-161. 2/25/93 Fixed two memory-management problems having to do with
-managing the old result during variable trace callbacks.
-
-162. 3/1/93 Added dynamic string library:  Tcl_DStringInit, Tcl_DStringAppend,
-Tcl_DStringFree, Tcl_DStringResult, etc.
-
-163. 3/1/93 Modified glob command to only return the names of files that
-exist, and to only return names ending in "/" if the file is a directory.
-*** POTENTIAL INCOMPATIBILITY ***
-
-164. 3/19/93 Modified not to use system calls like "read" directly,
-but instead to use special Tcl procedures that retry automatically
-if interrupted by signals.
-
-165. 4/3/93 Eliminated "noSep" argument to Tcl_AppendElement, plus
-TCL_NO_SPACE flag for Tcl_SetVar and Tcl_SetVar2.
-*** POTENTIAL INCOMPATIBILITY ***
-
-166. 4/3/93 Eliminated "flags" and "termPtr" arguments to Tcl_Eval.
-*** POTENTIAL INCOMPATIBILITY ***
-
-167. 4/3/93 Changes to expressions:
-    - The "expr" command now accepts multiple arguments, which are
-      concatenated together with space separators.
-    - Integers aren't automatically promoted to floating-point if they
-      overflow the word size:  errors are generated instead.
-    - Tcl can now handle "NaN" and other special values if the underlying
-      library procedures handle them.
-    - When printing floating-point numbers, Tcl ensures that there is a "."
-      or "e" in the number, so it can't be treated as an integer accidentally.
-      The procedure Tcl_PrintDouble is available to provide this function
-      in other contexts.  Also, the variable "tcl_precision" can be used
-      to set the precision for printing (must be a decimal number giving
-      digits of precision).
-    - Expressions now support transcendental and other functions, e.g. sin,
-      acos, hypot, ceil, and round.  Can add new math functions with
-      Tcl_CreateMathFunc().
-    - Boolean expressions can now have any of the string values accepted
-      by Tcl_GetBoolean, such as "yes" or "no".
-*** POTENTIAL INCOMPATIBILITY ***
-
-168. 4/5/93 Changed Tcl_UnsetVar and Tcl_UnsetVar2 to return TCL_OK
-or TCL_ERROR instead of 0 or -1.
-*** POTENTIAL INCOMPATIBILITY ***
-
-169. 4/5/93 Eliminated Tcl_CmdBuf structure and associated procedures;
-can use Tcl_DStrings instead.
-*** POTENTIAL INCOMPATIBILITY ***
-
-170. 4/8/93 Changed interface to Tcl_TildeSubst to use a dynamic
-string for buffer space.  This makes the procedure re-entrant and
-thread-safe, whereas it wasn't before.
-*** POTENTIAL INCOMPATIBILITY ***
-
-171. 4/14/93 Eliminated tclHash.h, and moved everything from it to
-tcl.h
-*** POTENTIAL INCOMPATIBILITY ***
-
-172. 4/15/93 Eliminated Tcl_InitHistory, made "history" command always
-be part of interpreter.
-*** POTENTIAL INCOMPATIBILITY ***
-
-173. 4/16/93 Modified "file" command so that "readable" option always
-exists, even on machines that don't support symbolic links (always returns
-same error as if the file wasn't a symbolic link).
-
-174. 4/26/93 Fixed bugs in "regsub" where ^ patterns didn't get handled
-right (pretended not to match when it really did, and looped infinitely
-if -all was specified).
-
-175. 4/29/93 Various improvements in the handling of variables:
-    - Can create variables and array elements during a read trace.
-    - Can delete variables during traces (note: unset traces will be
-      invoked when this happens).
-    - Can upvar to array elements.
-    - Can retarget an upvar to another variable by re-issuing the
-      upvar command with a different "other" variable.
-
-176. 5/3/93 Added Tcl_GetCommandInfo, which returns info about a Tcl
-command such as whether it exists and its ClientData.  Also added
-Tcl_SetCommandInfo, which allows any of this information to be modified
-and also allows a command's delete procedure to have a different
-ClientData value than its command procedure.
-
-177. 5/5/93 Added Tcl_RegExpMatch procedure.
-
-178. 5/6/93 Fixed bug in "scan" where it didn't properly handle
-%% conversion specifiers.  Also changed "scan" to use Tcl_PrintDouble
-for printing real values.
-
-179. 5/7/93 Added "-exact", "-glob", and "-regexp" options to "lsearch"
-command to allow different kinds of pattern matching.
-
-180. 5/7/93 Added many new switches to "lsort" to control the sorting
-process: "-ascii", "-integer", "-real", "-command", "-increasing",
-and "-decreasing".
-
-181. 5/10/93 Changes to file I/O:
-    - Modified "open" command to support a list of POSIX access flags
-      like {WRONLY CREAT TRUNC} in addition to current fopen-style
-      access modes.  Also added "permissions" argument to set permissions
-      of newly-created files.
-    - Fixed Scott Bolte's bug (can close stdin etc. in application and
-      then re-open them with Tcl commands).
-    - Exported access to Tcl's file table with new procedures Tcl_EnterFile
-      and Tcl_GetOpenFile.
-
-182. 5/15/93 Added new "pid" command, which can be used to retrieve
-either the current process id or a list of the process ids in a
-pipeline opened with "open |..."
-
-183. 6/3/93 Changed to use GNU autoconfig for configuration instead of
-the home-brew "config" script.  Also made many other configuration-related
-changes, such as using <unistd.h> instead of explicitly declaring system
-calls in tclUnix.h.
-
-184. 6/4/93 Fixed bug where core-dumps could occur if a procedure
-redefined itself (the memory for the procedure's body could get
-reallocated in the middle of evaluating the body);  implemented
-simple reference count mechanism.
-
-185. 6/5/93 Changed tclIndex file format in two ways:  (a) it's now
-eval-ed instead of parsed, which makes it 3-4x faster; (b) the entries
-in auto_index are now commands to evaluate, which allows commands to
-be loaded in different ways such as dynamic-loading of C code.  The
-old tclIndex file format is still supported.
-
-186. 6/7/93 Eliminated tclTest program, added new "tclsh" program
-that is more like wish (allows script files to be invoked automatically
-using "#!/usr/local/bin/tclsh", makes arguments available to script,
-etc.).  Added support for Tcl_AppInit plus default version;  this
-allows new Tcl applications to be created without modifying the
-main program for tclsh.
-
-187. 6/7/93 Fixed bug in TclWordEnd that kept backslash-newline from
-working correctly in some cases during interactive input.
-
-188. 6/9/93 Added Tcl_LinkVar and related procedures, which automatically
-keep a Tcl variable in sync with a C variable.
-
-189. 6/16/93 Increased maximum nesting depth from 100 to 1000.
-
-190. 6/16/93 Modified "trace var" command so that error messages from
-within traces are returned properly as the result of the variable
-access, instead of the generic "access disallowed by trace command"
-message.
-
-191. 6/16/93 Added Tcl_CallWhenDeleted to provide callbacks when an
-interpreter is deleted (same functionality as Tcl_WatchInterp, which
-used to exist in versions before 6.0).
-
-193. 6/16/93 Added "-code" argument to "return" command;  it's there
-primarily for completeness, so that procedures implementing control
-constructs can reflect exceptional conditions back to their callers.
-
-194. 6/16/93 Split up Tcl.n to make separate manual entries for each
-Tcl command.  Tcl.n now contains a summary of the language syntax.
-
-195. 6/17/93 Added new "switch" command to replace "case": allows
-alternate forms of pattern matching (exact, glob, regexp), replaces
-pattern lists with single patterns (but you can use "-" bodies to
-share one body among several patterns), eliminates "in" noise word.
-"Case" command is now obsolete.
-
-196. 6/17/93 Changed the "exec", "glob", "regexp", and "regsub" commands
-to include a "--" switch.  All initial arguments starting with "-" are now
-treated as switches unless a "--" switch is present to end the list.
-*** POTENTIAL INCOMPATIBILITY ***
-
-197. 6/17/93 Changed auto-exec so that the subprocess gets stdin, stdout,
-and stderr from the parent.  This allows truly interactive sub-processes
-(e.g. vi) to be auto-exec'ed from a tcl shell command line.
-
-198. 6/18/93 Added patchlevel.h, for use in coordinating future patch
-releases, and also added "info patchlevel" command to make the patch
-level available to Tcl scripts.
-
-199. 6/19/93 Modified "glob" command so that a leading "//" in a name
-gets left as is (this is needed for systems like Apollos where "//" is
-the super-root;  Tcl used to collapse the two slashes into a single
-slash).
-
-200. 7/7/93 Added Tcl_SetRecursionLimit procedure so that the maximum
-allowable nesting depth can be controlled for an interpreter from C.
-
------------------ Released version 7.0 Beta 1, 7/9/93 ------------------
-
-201. 7/12/93 Modified Tcl_GetInt and tclExpr.c so that full-precision
-unsigned integers can be specified without overflow errors.
-
-202. 7/12/93 Configuration changes:  eliminate leading blank line in
-configure script;  provide separate targets in Makefile for installing
-binary and non-binary information; check for size_t and a few other
-potentially missing typedefs; don't put tclAppInit.o into libtcl.a;
-better checks for matherr support.
-
-203. 7/14/93 Changed tclExpr.c to check the termination pointer before
-errno after strtod calls, to avoid problems with some versions of
-strtod that set errno in unexpected ways.
-
-204. 7/16/93 Changed "scan" command to be more ANSI-conformant:
-eliminated %F, %D, etc., added code to ignore "l", "h", and "L"
-modifiers but always convert %e, %f, and %g with implicit "l";
-also added support for %u and %i.  Also changed "format" command
-to eliminate %D, %U, %O, and add %i.
-*** POTENTIAL INCOMPATIBILITY ***
-
-205. 7/17/93 Changed "uplevel" and "upvar" so that they can be used
-from global level to global level:  this used to generate an error.
-
-206. 7/19/93 Renamed "setenv", "putenv", and "unsetenv" procedures
-to avoid conflicts with system procedures with the same names.  If
-you want Tcl's procedures to override the system procedures, do it
-in the Makefile (instructions are in the Makefile).
-*** POTENTIAL INCOMPATIBILITY ***
-
------------------ Released version 7.0 Beta 2, 7/21/93 ------------------
-
-207. 7/21/93 Fixed bug in tclVar.c where freed memory was accidentally
-used if a procedure returned an element of a local array.
-
-208. 7/22/93 Fixed bug in "unknown" where it didn't properly handle
-errors occurring in the "auto_load" procedure, leaving its state
-inconsistent.
-
-209. 7/23/93 Changed exec's ">2" redirection operator to "2>" for
-consistency with sh.  This is incompatible with earlier beta releases
-of 7.0 but not with pre-7.0 releases, which didn't support either
-operator.
-
-210. 7/28/93 Changed backslash-newline handling so that the resulting
-space character *is* treated as a word separator unless the backslash
-sequence is in quotes or braces.  This is incompatible with 7.0b1
-and 7.0b2 but is more compatible with pre-7.0 versions that the b1
-and b2 releases were.
-
-211. 7/28/93 Eliminated Tcl_LinkedVarWritable, added TCL_LINK_READ_ONLY to
-Tcl_LinkVar to accomplish same purpose.  This change is incompatible
-with earlier beta releases, but not with releases before Tcl 7.0.
-
-212. 7/29/93 Renamed regexp C functions so they won't clash with POSIX
-regexp functions that use the same name.
-
-213. 8/3/93 Added "-errorinfo" and "-errorcode" options to "return"
-command: these allow for much better handling of the errorInfo
-and errorCode variables in some cases.
-
-214. 8/12/93 Changed "expr" so that % always returns a remainder with
-the same sign as the divisor and absolute value smaller than the
-divisor.
-
-215. 8/14/93 Turned off auto-exec in "unknown" unless the command
-was typed interactively.  This means you must use "exec" when
-invoking subprocesses, unless it's a command that's typed interactively.
-*** POTENTIAL INCOMPATIBILITY ***
-
-216. 8/14/93 Added support for tcl_prompt1 and tcl_prompt2 variables
-to tclMain.c:  makes prompts user-settable.
-
-217. 8/14/93 Added asynchronous handlers (Tcl_AsyncCreate etc.) so
-that signals can be taken cleanly by Tcl applications.
-
-218. 8/16/93 Moved information about open files from the interpreter
-structure to global variables so that a file can be opened in one
-interpreter and read or written in another.
-
-219. 8/16/93 Removed ENV_FLAGS from Makefile, so that there's no
-official support for overriding setenv, unsetenv, and putenv.
-
-220. 8/20/93 Various configuration improvements:  coerce chars
-to unsigned chars before using macros like isspace;  source ~/.tclshrc
-file during initialization if it exists and program is running
-interactively;  allow there to be directories in auto_path that don't
-exist or don't have tclIndex files (ignore them); added Tcl_Init
-procedure and changed Tcl_AppInit to call it.
-
-221. 8/21/93 Fixed bug in expr where "+", "-", and " " were all
-getting treated as integers with value 0.
-
-222. 8/26/93 Added "tcl_interactive" variable to tclsh.
-
-223. 8/27/93 Added procedure Tcl_FilePermissions to return whether a
-given file can be read or written or both.  Modified Tcl_EnterFile
-to take a permissions mask rather than separate read and write arguments.
-
-224. 8/28/93 Fixed performance bug in "glob" command (unnecessary call
-to "access" for each file caused a 5-10x slow-down for big directories).
-
------------------ Released version 7.0 Beta 3, 8/28/93 ------------------
-
-225. 9/9/93 Renamed regexp.h to tclRegexp.h to avoid conflicts with system
-include file by same name.
-
-226. 9/9/93 Added Tcl_DontCallWhenDeleted.
-
-227. 9/16/93 Changed not to call exit C procedure directly;  instead
-always invoke "exit" Tcl command so that application can redefine the
-command to do additional cleanup.
-
-228. 9/17/93 Changed auto-exec to handle names that contain slashes
-(i.e. don't use PATH for them).
-
-229. 9/23/93 Fixed bug in "read" and "gets" commands where they didn't
-clear EOF conditions.
-
------------------ Released version 7.0, 9/29/93 ------------------
-
-230. 10/7/93 "Scan" command wasn't properly aligning things in memory,
-so segmentation faults could arise under some circumstances.
-
-231. 10/7/93 Fixed bug in Tcl_ConvertElement where it forgot to
-backslash leading curly brace when creating lists.
-
-232. 10/7/93 Eliminated dependency of tclMain.c on tclInt.h and
-tclUnix.h, so that people can copy the file out of the Tcl source
-directory to make modified private versions.
-
-233. 10/8/93 Fixed bug in auto-loader that reversed the priority order
-of entries in auto_path for new-style index files.  Now things are
-back to the way they were before 3.0:  first in auto_path is always
-highest priority.
-
-234. 10/13/93 Fixed bug where Tcl_CommandComplete didn't recognize
-comments and treat them as such.  Thus if you typed the line
-    # {
-interactively, Tcl would think that the command wasn't complete and
-wait for more input before evaluating the script.
-
-235. 10/14/93 Fixed bug where "regsub" didn't set the output variable
-if the input string was empty.
-
-236. 10/23/93 Fixed bug where Tcl_CreatePipeline didn't close off enough
-file descriptors in child processes, causing children not to exit
-properly in some cases.
-
-237. 10/28/93 Changed "list" and "concat" commands not to generate
-errors if given zero arguments, but instead to just return an empty
-string.
-
------------------ Released version 7.1, 11/4/93 ------------------
-
-Note: there is no 7.2 release.  It was flawed and was thus withdrawn
-shortly after it was released.
-
-238. 11/10/93 TclMain.c didn't compile on some systems because of
-R_OK in call to "access".  Changed to eliminate call to "access".
-
------------------ Released version 7.3, 11/26/93 ------------------
-
-239. 11/6/93 Modified "lindex", "linsert", "lrange", and "lreplace"
-so that "end" can be specified as an index.
-
-240. 11/6/93 Modified "append" and "lappend" to allow only two
-words total (i.e., nothing to append) without generating an error.
-
-241. 12/2/93 Changed to use EAGAIN as the errno for non-blocking
-I/O instead of EWOULDBLOCK:  this should fix problem where non-blocking
-I/O didn't work correctly on System-V systems.
-
-242. 12/22/93 Fixed bug in expressions where cancelled evaluation
-wasn't always working correctly (e.g. "set one 1; eval {1 || 1/$one}"
-failed with a divide by zero error).
-
-243. 1/6/94 Changed TCL_VOLATILE definition from -1 to the address of
-a dummy procedure Tcl_Volatile, since -1 causes portability problems on
-some machines (e.g., Crays).
-
-244. 2/4/94 Added support for unary plus.
-
-245. 2/17/94 Changed Tcl_RecordAndEval and "history" command to
-call Tcl_GlobalEval instead of Tcl_Eval.  Otherwise, invocation of
-these facilities in nested procedures can cause unwanted results.
-
-246. 2/17/94 Fixed bug in tclExpr.c where an expression such as
-"expr {"12398712938788234-1298379" != ""}" triggers an integer
-overflow error for the number in quotes, even though it isn't really
-a proper integer anyway.
-
-247. 2/19/94 Added new procedure Tcl_DStringGetResult to move result
-from interpreter to a dynamic string.
-
-248. 2/19/94 Fixed bug in Tcl_DStringResult that caused it to overwrite
-the contents of a static result in some situations.  This can cause
-bizarre errors such as variables suddenly having empty values.
-
-249. 2/21/94 Fixed bug in Tcl_AppendElement, Tcl_DStringAppendElement,
-and the "lappend" command that caused improper omission of a separator
-space in some cases.  For example, the script
-    set x "abc{"; lappend x "def"
-used to return the result "abc{def" instead of "abc{ def".
-
-250. 3/3/94 Tcl_ConvertElement was outputting empty elements as \0 if
-TCL_DONT_USE_BRACES was set.  This depends on old pre-7.0 meaning of
-\0, which is no longer in effect, so it didn't really work.  Changed
-to output empty elements as {} always.
-
-251. 3/3/94 Renamed Tcl_DStringTrunc to Tcl_DStringSetLength and extended
-it so that it can be used to lengthen a string as well as shorten it.
-Tcl_DStringTrunc is defined as a macro for backward compatibility, but
-it is deprecated.
-
-252. 3/3/94 Added Tcl_AllowExceptions procedure.
-
-253. 3/13/94 Fixed bug in Tcl_FormatCmd that could cause "format"
-to mis-behave on 64-bit Big-Endian machines.
-
-254. 3/13/94 Changed to use vfork instead of fork on systems where
-vfork exists.
-
-255. 3/23/94 Fixed bug in expressions where ?: didn't associate
-right-to-left as they should.
-
-256. 4/3/94 Fixed "exec" to flush any files used in >@ or >&@
-redirection in exec, so that data buffered for them is written
-before any new data added by the subprocess.
-
-257. 4/3/94 Added "subst" command.
-
-258. 5/20/94 The tclsh main program is now called Tcl_Main;  tclAppInit.c
-has a "main" procedure that calls Tcl_Main.  This makes it easier to use
-Tcl with C++ programs, which need their own main programs, and it also
-allows an application to prefilter the argument list before calling
-Tcl_Main.
-*** POTENTIAL INCOMPATIBILITY ***
-
-259. 6/6/94 Fixed bug in procedure returns where the errorInfo variable
-could get truncated if an unset trace was invoked as part of returning
-from the procedure.
-
-260. 6/13/94 Added "wordstart" and "wordend" options to "string" command.
-
-261. 6/27/94 Fixed bug in expressions where they didn't properly cancel
-the evaluation of math functions in &&, ||, and ?:.
-
-262. 7/11/94 Incorrect boolean values, like "ogle", weren't being
-handled properly.
-
-263. 7/15/94 Added Tcl_RegExpCompile, Tcl_RegExpExec, and Tcl_RegExpRange,
-which provide lower-level access to regular expression pattern matching.
-
-264. 7/22/94 Fixed bug in "glob" command where "glob -nocomplain ~bad_user"
-would complain about a missing user.  Now it doesn't complain anymore.
-
-265. 8/4/94 Fixed bug with linked variables where they didn't behave
-correctly when accessed via upvars.
-
-266. 8/17/94 Fixed bug in Tcl_EvalFile where it didn't clear interp->result.
-
-267. 8/31/94 Modified "open" command so that errors in exec-ing
-subprocesses are returned by the open immediately, rather than
-being delayed until the "close" is executed.
-
-268. 9/9/94 Modified "expr" command to generate errors for integer
-overflow (includes addition, subtraction, negation, multiplication,
-division).
-
-269. 9/23/94 Modified "regsub" to return a count of the number of
-matches and replacements, rather than 0/1.
-
-279. 10/4/94 Added new features to "array" command:
-    - added "get" and "set" commands for easy conversion between arrays
-      and lists.
-    - added "exists" command to see if a variable is an array, changed
-      "names" and "size" commands to treat a non-existent array (or scalar
-      variable) just like an empty one.
-    - added pattern option to "names" command.
-
-280. 10/6/94 Modified Tcl_SetVar2 so that read traces on variables get
-called during append operations.
-
-281. 10/20/94 Fixed bug in "read" command where reading from stdin
-required two control-D's to stop the reading.
-
-282. 11/3/94 Changed "expr" command to use longs for division just like
-all other expr operators;  it previously used ints for division.
-
-283. 11/4/94 Fixed bugs in "unknown" procedure:  it wasn't properly
-handling exception returns from commands that were executed after
-being auto-loaded.
-
------------------ Released version 7.4b1, 12/23/94 ------------------
-
-284. 12/26/94 Fixed "install" target in Makefile (couldn't always
-find install program).
-
-285. 12/26/94 Added strcncasecmp procedure to compat directory.
-
-286. 1/3/95 Fixed all procedure calls to explicitly cast arguments:
-implicit conversions from prototypes (especially integer->double)
-don't work when compiling under non-ANSI compilers.  Tcl is now clean
-under gcc -Wconversion.
-
-287. 1/4/95 Fixed problem in Tcl_ArrayCmd where same name was used for
-both a label and a variable;  caused problems on several older compilers,
-making array command misbehave and causing many errors in Tcl test suite.
-
------------------ Released version 7.4b2, 1/12/95 ------------------
-
-288. 2/9/95 Modified Tcl_CreateCommand to return a token, and added
-Tcl_GetCommandName procedure.  Together, these procedures make it possible
-to track renames of a command.
-
-289. 2/13/95 Fixed bug in expr where "089" was interpreted as a
-floating-point number rather than a bogus octal number.
-*** POTENTIAL INCOMPATIBILITY ***
-
-290. 2/14/95 Added code to Tcl_GetInt and Tcl_GetDouble to check for
-overflows when reading in numbers.
-
-291. 2/18/95 Changed "array set" to stop after first error, rather than
-continuing after error.
-
-292. 2/20/95 Upgraded to use autoconf version 2.2.
-
-293. 2/20/95 Fixed core dump that could occur in "scan" command if a
-close bracket was omitted.
-
-294. 2/27/95 Changed Makefile to always use install-sh for installations:
-there's just too much variation among "install" system programs, which
-makes installation flakey.
-
------------------ Released version 7.4b3, 3/24/95 ------------------
-
-3/25/95 (bug fix) Changed "install" to "./install" in Makefile so that
-"make install" will work even when "." isn't in the search path.
-
-3/29/95 (bug fix) Fixed bug where the auto-loading mechanism wasn't
-protecting the values of the errorCode and errorInfo variables.
-
-3/29/95 (new feature) Added optional pattern argument to "parray" procedure.
-
-3/29/95 (bug fix) Made the full functionality of
-    "return -code ... -errorcode ..."
-work not just inside procedures, but also in sourced files and at
-top level.
-
-4/6/95 (new feature) Added "pattern" option to "array names" command.
-
-4/18/95 (bug fix) Fixed bug in parser where it didn't allow backslash-newline
-immediately after an argument in braces or quotes.
-
-4/19/95 (new feature) Added tcl_library variable, which application can
-set to override default library directory.
-
-4/30/95 (bug fix) During trace callbacks for array elements, the variable
-name used in the original reference would be temporarily modified to
-separate the array name and element name;  if the trace callback used
-the same name string, it would get the wrong name (the array name without
-element).  Fixed to restore the variable name before making trace
-callbacks.
-
-4/30/95 (new feature) Added -nobackslashes, -nocommands, and -novariables
-switches to "subst" command.
-
-5/4/95 (new feature) Added TCL_EVAL_GLOBAL flag to Tcl_RecordAndEval.
-
-5/5/95 (bug fix)  Format command would overrun memory when printing
-integers with very large precision, as in "format %.1000d 0".
-
-5/5/95 (portability improvement) Changed to use BSDgettimeofday on
-IRIX machines, to avoid compilation problems with the gettimeofday
-declaration.
-
-5/6/95 (bug fix) Changed manual entries to use the standard .TH
-macro instead of a custom .HS macro;  the .HS macro confuses index
-generators like makewhatis.
-
-5/9/95 (bug fix) Modified configure script to check for Solaris bug
-that makes vfork unreliable (core dumps result if vforked child
-changes a signal handler);  will use fork instead of vfork if the
-bug is present.
-
-6/5/95 (bug fix) Modified "lsort" command to disallow recursive calls
-to lsort from a comparison function.  This is needed because qsort
-is not reentrant.
-
-6/5/95 (bug fix) Undid change 243 above:  changed TCL_VOLATILE and
-TCL_DYNAMIC back to integer constants rather than procedure addresses.
-This was needed because procedure addresses can have multiple values
-under some dynamic loading systems (e.g. SunOS 4.1 and Windows).
-
-6/8/95 (feature change) Modified interface to Tcl_Main to pass in the
-address of the application-specific initialization procedure.
-Tcl_AppInit is no longer hardwired into Tcl_Main.  This is needed
-in order to make Tcl a shared library.
-
-6/8/95 (feature change) Modified Makefile so that the installed versions
-of tclsh and libtcl.a have version number in them (e.g. tclsh7.4 and
-libtcl7.4.a) and the library directory name also has an embedded version
-number (e.g., /usr/local/lib/tcl7.4).  This should make it easier for
-Tcl 7.4 to coexist with earlier versions.
-
------------------ Released version 7.4b4, 6/16/95 ------------------
-
-6/19/95 (bug fix) Fixed bugs in tclCkalloc.c that caused core dumps
-if TCL_MEM_DEBUG was enabled on word-addressed machines such as Crays.
-
-6/21/95 (feature removal) Removed overflow checks for integer arithmetic:
-they just cause too much trouble (e.g. for random  number generators).
-
-6/28/95 (new features) Added tcl_patchLevel and tcl_version variables,
-for consistency with Tk.
-
-6/29/95 (bug fix) Fixed problem in Tcl_Eval where it didn't record
-the right termination character if a script ended with a comment.  This
-caused erroneous output for the following command, among others:
-puts "[
-expr 1+1
-# duh!
-]"
-
-6/29/95 (message change) Changed the error message for ECHILD slightly
-to provide a hint about why the problem is occurring.
-
------------------ Released version 7.4, 7/1/95 ------------------
-
-7/18/95 (bug fix) Changed "lreplace" so that nothing is deleted if
-the last index is less than the first index or if the last index
-is < 0.
-
-7/18/95 (bug fix) Fixed bugs with backslashes in comments:
-Tcl_CommandComplete (and "info complete") didn't properly handle
-strings ending in backslash-newline, and neither Tcl_CommandComplete
-nor the Tcl parser handled other backslash sequences right, such
-as two backslashes before a newline.
-
-7/19/95 (bug fix) Modified Tcl_DeleteCommand to delete the hash table
-entry for the command before invoking its callback.  This is needed in
-order to deal with reentrancy.
-
-7/22/95 (bug fix) "exec" wasn't reaping processes correctly after
-certain errors (e.g. if the name of the executable was bogus, as
-in "exec foobar").
-
-7/27/95 (bug fix) Makefile.in wasn't using the LIBS variable provided
-by the "configure" script.  This caused problems on some SCO systems.
-
-7/27/95 (bug fix) The version of strtod in fixstrtod.c didn't properly
-handle the case where endPtr == NULL.
-
------------------ Released patch 7.4p1, 7/29/95 -----------------------
-
-8/4/95 (bug fix) C-level trace callbacks for variables were sometimes
-receiving the PART1_NOT_PARSED flag, which could cause errors in
-subsequent Tcl library calls using the flags. (JO)
-
-8/4/95 (bug fix) Calls to toupper and tolower weren't using the
-UCHAR macros, which caused trouble in non-U.S. locales. (JO)
-
-8/10/95 (new feature) Added the "load" command for dynamic loading of
-binary packages, and the Tcl_PackageInitProc prototype for package
-initialization procedures. (JO)
-
-8/23/95 (new features) Added "info sharedlibextension" and
-"info nameofexecutable" commands, plus Tcl_FindExtension procedure. (JO)
-
-8/25/95 (bug fix) If the target of an "upvar" was non-existent but
-had traces set, the traces were silently lost.  Change to generate
-an error instead. (JO)
-
-8/25/95 (bug fix) Undid change from 7/19, so that commands can stay
-around while their deletion callbacks execute.  Added lots of code to
-handle all of the reentrancy problems that this opens up. (JO)
-
-8/25/95 (bug fix) Fixed core dump that could occur in TclDeleteVars
-if there was an upvar from one entry in the table to the next entry
-in the same table. (JO)
-
-8/28/95 (bug fix) Exec wasn't handling bad user names properly, as
-in "exec ~bogus_user/foo". (JO)
-
-8/29/95 (bug fixes) Changed backslash-newline handling to correct two
-problems:
-    - Only spaces and tabs following the backslash-newline are now
-      absorbed as part of the backslash-newline.  Newlinew are no
-      longer absorbed (add another backslash if you want to absorb
-      another newline).
-    - TclWordEnd returns the character just before the backslash in
-      the sequence as the end of the sequence;  it used to not consider
-      the backslash-newline as a word separator. (JO)
-
-8/31/95 (new feature) Changed man page installation (with "mkLinks"
-script) to create additional links for manual pages corresponding to
-each of the procedure and command names described in the pages. (JO)
-
-9/10/95 Reorganized Tcl sources for Windows and Mac ports.  All sources
-are now in subdirectories:  "generic" contains sources that work on all
-platforms, "windows", "mac", and "unix" directories contain platform-
-specific sources.  Some UNIX sources are also used on other platforms. (SS)
-
-9/10/95 (feature change) Eliminated exported global variables (they
-don't work with Windows DLLs).  Replaced tcl_AsyncReady and
-tcl_FileCloseProc with procedures Tcl_AsyncReady() and
-Tcl_SetFileCloseProc().  Replaced C variable tcl_RcFileName with
-a Tcl variable tcl_rcFileName. (SS)
-*** POTENTIAL INCOMPATIBILITY ***
-
-9/11/95 (new feature) Added procedure Tcl_SetPanicProc to override
-the default implementation of "panic". (SS)
-
-9/11/95 (new feature) Added "interp" command to allow creation of
-new interpreters and execution of untrusted scripts.  Added many new
-procedures, such as Tcl_CreateSlave, Tcl_CreateAlias,and Tcl_MakeSafe,
-to provide C-level access to the interpreter facility. This mechanism
-now provides almost all of the generic functions of Borenstein's and
-Rose's Safe-Tcl (but not any Tk or email-related stuff).  (JL)
-
-9/11/95 (feature change) Changed file management so that files are
-no longer shared between interpreters:  a file cannot normally be
-referenced in one interpreter if it was opened in another.  This
-feature is needed to support safe interpreters.  Added Tcl_ShareHandle()
-procedure for allowing files to be shared, and added "interp" argument
-to Tcl_FilePermissions procedure. (JL)
-*** POTENTIAL INCOMPATIBILITY ***
-
-9/11/95 (new feature) Added "AssocData" mechanism, whereby extensions
-can associate their own data with an interpreter and get called back
-when the interpreter is deleted.  This is visible at C level via the
-procedures Tcl_SetAssocData and Tcl_GetAssocData.  (JL)
-
-9/11/95 (new feature) Added Tcl_ErrnoMsg to translate an errno value
-into a human-readable string.  This is now used instead of calling
-strerror because strerror mesages vary dramatically from platform
-to platform, which messes up Tcl tests.  Tcl_ErrnoMsg uses the standard
-POSIX messages for all the common signals, and calls strerror for
-signals it doesn't understand.
-
------------------ Released patch 7.4p2, 9/15/95 -----------------------
-
------------------ Released 7.5a1, 9/15/95 -----------------------
-
-9/22/95 (bug fix) Changed auto_mkindex to create tclIndex files that
-handle directories whose paths might contain spaces. (RJ)
-
-9/27/95 (bug fix) The "format" command didn't check for huge or negative
-width specifiers, which could cause core dumps. (JO)
-
-9/27/95 (bug fix) Core dumps could occur if an interactive command typed
-to tclsh returned a very long result for tclsh to print out.  The bug is
-actually in printf (in Solaris 2.3 and 2.4, at least);  switched to use
-puts instead.  (JO)
-
-9/28/95 (bug fix) Changed makefile.bc to eliminate a false dependency
-for tcl1675.dll on the Borland run time library. (SS)
-
-9/28/95 (bug fix) Fixed tcl75.dll so it looks for tcl1675.dll instead
-of tcl16.dll. (SS)
-
-9/28/95 (bug fix) Tcl was not correctly detecting the difference
-between Win32s and Windows '95. (SS)
-
-9/28/95 (bug fix) "exec" was not passing environment changes to child
-processes under Windows. (SS)
-
-9/28/95 (bug fix) Changed Tcl to ensure that open files are not passed
-to child processes under Windows. (SS)
-
-9/28/95 (bug fix) Fixed Windows '95 and NT versions of exec so it can
-handle both console and windows apps.   (SS)
-
-9/28/95 (bug fix) Fixed Windows version of exec so it no longer leaves
-temp files lying around.  Also changed it so the temp files are
-created in the appropriate system dependent temp directory. (SS)
-
-9/28/95 (bug fix) Eliminated source dependency on the Win32s Universal
-Thunk header file, since it is not bundled with VC++. (SS)
-
-9/28/95 (bug fix) Under Windows, Tcl now constructs the HOME
-environment variable from HOMEPATH and HOMEDRIVE when HOME is not
-already set. (SS)
-
-9/28/95 (bug fix) Added support for "info nameofexecutable" and "info
-sharedlibextension" to the Windows version. (SS)
-
-9/28/95 (bug fix) Changed tclsh to correctly parse command line
-arguments so that backslashes are preserved under Windows. (SS)
-
-9/29/95 (bug fix) Tcl 7.5a1 treated either return or newline as end
-of line in "gets", which caused lines ending in CRLF to be treated as
-two separate lines.  Changed to allow only character as end-of-line:
-carriage return on Macs, newline elsewhere. (JO)
-
-9/29/95 (new feature) Changed to install "configInfo" file in same
-directory as library scripts.  It didn't used to get installed. (JO)
-
-9/29/95 (bug fix) Tcl was not converting Win32 errors into POSIX
-errors under some circumstances. (SS)
-
-10/2/95 (bug fix) Safe interpreters no longer get initialized with
-a call to Tcl_Init(). (JL)
-
-10/1/95 (new feature) Added "tcl_platform" global variable to provide
-environment information such as the instruction set and operating
-system. (JO)
-
-10/1/95 (bug fix) "exec" command wasn't always generating the
-"child process exited abnormally" message when it should have.  (JO)
-
-10/2/95 (bug fix) Changed "mkLinks.tcl" so that the scripts it generates
-won't create links that overwrite original manual entries (there was
-a problem where pack-old.n was overwriting pack.n).  (JO)
-
-10/2/95 (feature change) Changed to use -ldl for dynamic loading under
-Linux if it is available, but fall back to -ldld if it isn't.  (JO)
-
-10/2/95 (bug fix) File sharing was causing refcounts to reach 0
-prematurely for stdin, stdout and stderr, under some circumstances. (JL)
-
-10/2/95 (platform support) Added support for Visual C++ compiler on
-Windows, Windows '95 and Windows NT, code donated by Gordon Chaffee. (JL)
-
-10/3/95 (bug fix) Tcl now frees any libraries that it loads before it
-exits. (SS)
-
-10/03/95 (bug fix) Fixed bug in Macintosh ls command where the -l
-and -C options would fail in anything but the HOME directory. (RJ)
-
------------------ Released 7.5a2, 10/6/95 -----------------------
-
-10/10/95 (bug fix) "file dirnam /." was returning ":" on UNIX instead
-of "/". (JO)
-
-10/13/95 (bug fix) Eliminated dependency on MKS toolkit for generating
-the tcl.def file from Borland object files. (SS)
-
-10/17/95 (new features) Moved the event loop from Tcl to Tk, made major
-revisions along the way:
-    - New Tcl commands:  after, update, vwait (replaces "tkwait variable").
-    - "tkerror" is now replaced with "bgerror".
-    - The following procedures are similar to their old Tk counterparts:
-      Tcl_DoOneEvent, Tcl_Sleep, Tcl_DoWhenIdle, Tcl_CancelIdleCall,
-      Tcl_CreateFileHandler, Tcl_DeleteFileHandler, Tcl_CreateTimerHandler,
-      Tcl_DeleteTimerHandler, Tcl_BackgroundError.
-    - Revised notifier, add new concept of "event source" with the following
-      procedures:  Tcl_CreateEventSource, Tcl_DeleteEventSource,
-      Tcl_WatchFile, Tcl_SetMaxBlockTime, Tcl_FileReady, Tcl_QueueEvent,
-      Tcl_WaitForEvent. (JO)
-
-10/31/95 (new features) Implemented cross platform file name support to make
-it easier to write cross platform scripts.  Tcl now understands 4 file naming
-conventions: Windows (both DOS and UNC), Mac, Unix, and Network.  The network
-convention is a new naming mechanism that can be used to paths in a platform
-independent fashion.  See the "file" command manual page for more details.
-The primary interfaces changes are:
-    - All Tcl commands that expect a file name now accept both network and
-      native form.
-    - Two new "file" subcommands, "nativename" and "networkname", provide a
-      way to convert between network and native form.
-    - Renamed Tcl_TildeSubst to Tcl_TranslateFileName, and changed it so that
-      it always returns a filename in native form.  Tcl_TildeSubst is defined
-      as a macro for backward compatibility, but it is deprecated. (SS)
-
-11/5/95 (new feature) Made "tkerror" and "bgerror" synonyms, so that
-either name can be used to manipulate the command (provides temporary
-backward compatibility for existing scripts that use tkerror). (JO)
-
-11/5/95 (new feature) Added exit handlers and new C procedures
-Tcl_CreateExitHandler, Tcl_DeleteExitHandler, and Tcl_Exit. (JO)
-
-11/6/95 (new feature) Added pid command for Macintosh version of
-Tcl (it didn't previously exist on the Mac). (RJ)
-
-11/7/95 (new feature) New generic IO facility and support for IO to
-files, pipes and sockets based on a common buffering scheme. Support
-for asynchronous (non-blocking) IO and for event driver IO. Support
-for automatic (background) asynchronous flushing and asynchronous
-closing of channels. (JL)
-
-11/7/95 (new feature)  Added new commands "fconfigure" and "fblocked"
-to support new I/O features such as nonblocking I/O.  Added "socket"
-command for creating TCP client and server sockets. (JL).
-
-11/7/95 (new feature) Complete set of C APIs to the new generic IO
-facility:
-    - Opening channels: Tcl_OpenFileChannel, Tcl_OpenCommandChannel,
-      Tcl_OpenTcpClient, Tcl_OpenTcpServer.
-    - I/O procedures on channels, which roughly mirror the ANSI C stdio
-      library:  Tcl_Read, Tcl_Gets, Tcl_Write, Tcl_Flush, Tcl_Seek,
-      Tcl_Tell, Tcl_Close, Tcl_Eof, Tcl_InputBlocked, Tcl_GetChannelOption,
-      Tcl_SetChannelOption.
-    - Extension mechanism for creating new kinds of channels:
-      Tcl_CreateChannel, Tcl_GetChannelInstanceData, Tcl_GetChannelType,
-      Tcl_GetChannelName, Tcl_GetChannelFile, Tcl_RegisterChannel,
-      Tcl_UnregisterChannel, Tcl_GetChannel.
-    - Event-driven I/O on channels: Tcl_CreateChannelHandler,
-      Tcl_DeleteChannelHandler. (JL)
-
-11/7/95 (new feature) Channel driver interface specification to allow
-new types of channels to be added easily to Tcl. Currently being used
-in three drivers - for files, pipes and TCP-based sockets. (JL).
-
-11/7/95 (new feature) interp delete now takes any number of path
-names of interpreters to delete, including zero. (JL).
-
-11/8/95 (new feature) implemented 'info hostname' and Tcl_GetHostName
-command to get host name of machine on which the Tcl process is running. (JL)
-
-11/9/95 (new feature) Implemented file APIs for access to low level files
-on each system. The APIs are: Tcl_CloseFile, Tcl_OpenFile, Tcl_ReadFile,
-Tcl_WriteFile and Tcl_SeekFile. Also implemented Tcl_WaitPid which waits
-in a system dependent manner for a child process. (JL)
-
-11/9/95 (new feature) Added Tcl_UpdateLinkedVar procedure to force a
-Tcl variable to be updated after its C variable changes. (JO)
-
-11/9/95 (bug fix) The glob command has been totally reimplemented so
-that it can support different file name conventions.  It now handles
-Windows file names (both UNC and drive-relative) properly.  It also
-supports nested braces correctly now. (SS)
-
-11/13/95 (bug fix) Fixed Makefile.in so that configure can be run
-from a clean directory separate from the Tcl source tree, and compilations
-can be performed there. (JO)
-
-11/14/95 (bug fix) Fixed file sharing between interpreters and file
-transferring between interpreters to correctly manage the refcount so that
-files are closed when the last reference to them is discarded. (JL)
-
-11/14/95 (bug fix) Fixed gettimeofday implementation for the
-Macintosh.  This fixes several timing related bugs. (RJ)
-
-11/17/95 (new feature) Added missing support for info nameofexecutable
-on the Macintosh. (RJ)
-
-11/17/95 (bug fix) The Tcl variables argc argv and argv0 now return
-something reasonable on the Mac.  (RJ)
-
-11/22/95 (new feature) Implemented "auto-detect" mode for end of line
-translations. On input, standalone "\r" mean MAC mode, standalone "\n"
-mean Unix mode and "\r\n" means Windows mode. On output, the mode is
-modified to whatever the platform specific mode for that platform is. (JL)
-
-11/24/95 (feature change) Replaced "configInfo" file with tclConfig.sh,
-which is more complete and uses slightly different names.  Also
-arranged for tclConfig.sh to be installed in the platform-specific
-library directory instead of Tcl's script library directory. (JO)
-*** POTENTIAL INCOMPATIBILITY with Tcl 7.5a2, but not with Tcl 7.4 ***
-
------------------ Released patch 7.4p3, 11/28/95 -----------------------
-
-12/5/95 (new feature) Added Tcl_File facility to support platform-
-independent file handles.  Changed all interfaces that used Unix-
-style integer fd's to use Tcl_File's instead. (SS)
-*** POTENTIAL INCOMPATIBILITY ***
-
-12/5/95 (new feature) Added a new "clock" command to Tcl.  The command
-allows you to get the current "clicks" or seconds & allows you to
-format or scan human readable time/date strings. (RJ)
-
-12/18/95 (new feature) Moved Tk_Preserve, Tk_Release, and Tk_EventuallyFree
-to Tcl, renamed to Tcl_Preserve, Tcl_Release, and Tcl_EventuallyFree. (JO)
-
-12/18/95 (new feature) Added new "package" command and associated
-procedures Tcl_PkgRequire and Tcl_PkgProvide.   Also wrote
-pkg_mkIndex library procedure to create index files from binaries
-and scripts. (JO)
-
-12/20/95 (new feature) Added Tcl_WaitForFile procedure. (JO)
-
-12/21/95 (new features) Made package name argument to "load" optional
-(Tcl will now attempt to guess the package name if necessary).  Also
-added Tcl_StaticPackage and support in "load" for statically linked
-packages.  (JO)
-
-12/22/95 (new feature) Upgraded the foreach command to accept multiple
-loop variables and multiple value lists.  This lets you iterate over
-multiple lists in parallel, and/or assign multiple loop variables from
-one value list during each iteration. The only potential compatibility
-problem is with scripts that used loop variables with a name that could be
-construed to be a list of variable names (i.e. contained spaces).  (BW)
-
-1/5/96 (new feature) Changed tclsh so it builds as a console mode
-application under Windows.  Now tclsh can be used from the command
-line with pipes or interactively.  Note that this only works under
-Windows 95 or NT. (SS)
-
-1/17/96 (new feature) Modified Makefile and configure script to allow
-Tcl to be compiled as a shared library:  use the --enable-shared option
-when configuing.  (JO)
-
-1/17/96 (removed obsolete features)  Removed the procedures Tcl_EnterFile
-and Tcl_GetOpenFile:  these no longer make sense with the new I/O system. (JL)
-*** POTENTIAL INCOMPATIBILITY ***
-
-1/19/96 (bug fixes) Prevented formation of circular aliases, through the
-Tcl 'interp alias' command and through the 'rename' command, as well as
-through the C API Tcl_CreateAlias. (JL)
-
-1/19/96 (bug fixes) Fixed several bugs in direct deletion of interpreters
-with Tcl_DeleteInterp when the interpreter is a slave; fixes based on a
-patch received from Viktor Dukhovni of ESM. (JL)
-
-1/19/96 (new feature) Implemented on-close handlers for channels; added
-the C APIs Tcl_CreateCloseHandler and Tcl_DeleteCloseHandler. (JL)
-
-1/19/96 (new feature) Implemented portable error reporting mechanism; added
-the C APIs Tcl_SetErrno and Tcl_GetErrno. (JL)
-
-1/24/96 (bug fix) Unknown command processing properly invokes external
-commands under Windows NT and Windows '95 now. (SS)
-
-1/23/96 (bug fix) Eliminated extremely long startup times under Windows '95.
-The problem was a result of the option database initialization code that
-concatenated $HOME with /.Xdefaults, resulting in a // in the middle of the
-file name.  Under Windows '95, this is incorrectly interpreted as a UNC
-path.  They delays came from the network timeouts needed to determine that
-the file name was invalid.  Tcl_TranslateFileName now suppresses duplicate
-slashes that aren't at the beginning of the file name. (SS)
-
-1/25/96 (bug fix) Changed exec and open to create children so they are
-attached to the application's console if it exists. (SS)
-
-1/31/96 (bug fix) Fixed command line parsing to handle embedded
-spaces under Windows. (SS)
-
------------------ Released 7.5b1, 2/1/96 -----------------------
-
-2/7/96 (bug fix) Fixed off by one error in argument parsing code under
-Windows. (SS)
-
-2/7/96 (bug fix) Fixed bugs in VC++ makefile that improperly
-initialized the tcl75.dll.  Fixed bugs in Borland makefile that caused
-build failures under Windows NT. (SS)
-
-2/9/96 (bug fix) Fixed deadlock problem in AUTO end of line translation
-mode which would cause a socket server with several concurrent clients
-writing in CRLF mode to hang. (JL)
-
-2/9/96 (API change) Replaced -linemode option to fconfigure with a
-new -buffering option, added "none" setting to enable immediate write. (JL)
-*** INCOMPATIBILITY with b1 ***
-
-2/9/96 (new feature) Added C API Tcl_InputBuffered which returns the count
-of bytes currently buffered in the input buffer of a channel, and o for
-output only channels. (JL)
-
-2/9/96 (new feature) Implemented asynchronous connect for sockets. (JL)
-
-2/9/96 (new feature) Added C API Tcl_SetDefaultTranslation to set (per
-channel) the default end of line translation mode. This is the mode that
-will be installed if an output operation is done on the channel while it is
-still in AUTO mode. (JL)
-
-2/9/96 (bug fix) Changed Tcl_OpenCommandChannel interface to properly
-handle all of the combinations of stdio inheritance in background
-pipelines.  See the Tcl_OpenFileChannel(3) man page for more
-info.  This change fixes the bug where exec of a background pipeline
-was not getting passed the stdio handles properly. (SS)
-
-2/9/96 (bug fix) Removed the new Tcl_CreatePipeline interface, and
-restored the old version for Unix platforms only.  All new code should
-use Tcl_CreateCommandChannel instead. (SS)
-
-2/9/96 (bug fix) Changed Makefile.in to use -L and -ltcl7.5 for Tcl
-library so that shared libraries are more likely to be found correctly
-on more platforms. (JO)
-
-2/13/96 (new feature) Added C API Tcl_SetNotifierData and
-Tcl_GetNotifierData to allow notifier and channel driver writers to
-associate data with a Tcl_File.  The result of this change is that
-Tcl_GetFileInfo now always returns an OS file handle, and Tcl_GetFile
-can be used to construct a Tcl_File for an externally constructed OS
-handle. (SS)
-
-2/13/96 (bug fix) Changed Windows socket implementation so it doesn't
-set SO_REUSEADDR on server sockets.  Now attempts to create a server
-socket on a port that is already in use will be properly identified
-and an error will be generated. (SS)
-
-2/13/96 (bug fix) Fixed problems with DLL initialization under Visual
-C++ that left the C run time library uninitialized. (SS)
-
-2/13/96 (bug fix) Fixed Windows socket initialization so it loads
-winsock the first time it is used, rather than at the time tcl75.dll
-is loaded.  This should fix the bug where the modem immediately starts
-trying to connect to a service provider when wish or tclsh are
-started. (SS)
-
-2/13/96 (new feature) Added C APIs Tcl_MakeFileChannel and
-Tcl_MakeTcpClientChannel to wrap up existing fds and sockets into
-channels. Provided implementations on Unix and Windows. (JL)
-
-2/13/96 (bug fix) Fixed bug with seek leaving EOF and BLOCKING set. (JL)
-
-2/14/96 (bug fix) Fixed reentrancy problem in fileevent handling
-and made it more robust in the face of errors. (JL)
-
-2/14/96 (feature change) Made generic IO level emulate blocking mode if the
-channel driver is unable to provide it, e.g. if the low level device is
-always nonblocking. Thus, now blocking behavior is an advisory setting for
-channel drivers and can be ignored safely if the channel driver is unable
-to provide it. (JL)
-
-2/15/96 (new feature) Added "binary" end of line translation mode, which is
-a synonym of "lf" mode. (JL)
-
-2/15/96 (bug fix) Fixed reentrancy problem in fileevent handling vs
-deletion of channel event handlers. (JL)
-
-2/15/96 (bug fix) Fixed bug in event handling which would cause a
-nonblocking channel to not see further readable events after the first
-readable event that had insufficient input. (JL)
-
-2/17/96 (bug fix) "info complete" didn't properly handle comments
-in nested commands. (JO)
-
-2/21/96 (bug fix) "exec" under Windows NT/95 did not properly handle
-very long command lines (>200 chars). (SS)
-
-2/21/96 (bug fix) Sockets could get into an infinite loop if a read
-event arrived after all of the available data had been read. (SS)
-
-2/22/96 (bug fix) Added cast of st_size elements to (long) before
-sprintf-ing in "file size" command.  This is needed to handle systems
-like NetBSD with 64-bit file offsets.  (JO)
-
------------------ Released 7.5b2, 2/23/96 -----------------------
-
-2/23/96 (bug fix) TCL_VARARGS macro in tcl.h wasn't defined properly
-when compiling with C++.  (JO)
-
-2/24/96 (bug fix) Removed dependencies on Makefile in the UNIX Makefile:
-this caused problems on some platforms (like Linux?). (JO)
-
-2/24/96 (bug fix) Fixed configuration bug that made Tcl not compile
-correctly on Linux machines with neither -ldl or -ldld. (JO)
-
-2/24/96 (new feature) Added a block of comments and definitions to
-Makefile.in to make it easier to have Tcl's TclSetEnv etc. replace
-the library procedures setenv etc, so that calls to setenv etc. in
-the application automatically update the Tcl "env" variable. (JO)
-
-2/27/96 (feature change) Added optional Tcl_Interp * argument (may be NULL)
-to C API Tcl_Close and simplified closing of command channels. (JL)
-*** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
-
-2/27/96 (feature change) Added optional Tcl_Interp * argument (may be NULL)
-to C type definition Tcl_DriverCloseProc; modified all channel drivers to
-implement close procedures that accept the additional argument. (JL)
-*** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
-
-2/28/96 (bug fix) Fixed memory leak that could occur if an upvar
-referred to an element of an array in the same stack frame as the
-upvar. (JO)
-
-2/29/96 (feature change) Modified both Tcl_DoOneEvent and Tcl_WaitForEvent
-so that they return immediately in cases where they would otherwise
-block forever (e.g. if there are no event handlers of any sort). (JO)
-
-2/29/96 (new feature) Added C APIs Tcl_GetChannelBufferSize and
-Tcl_SetChannelBufferSize to set and retrieve the size, in bytes, for
-buffers allocated to store input or output in a channel. (JL)
-
-2/29/96 (new feature) Added option -buffersize to Tcl fconfigure command
-to allow Tcl scripts to query and set the size of channel buffers. (JL)
-
-2/29/96 (feature removed) Removed channel driver function to specify
-the buffer size to use when allocating a buffer. Removed the C typedef
-for Tcl_DriverBufferSizeProc. Channels are now created with a default
-buffer size of 4K. (JL)
-*** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
-
-2/29/96 (feature change) The channel driver function for setting blocking
-mode on the device may now be NULL. If the generic code detects that the
-function is NULL, operations that set the blocking mode on the channel
-simply succeed. (JL)
-
-3/2/96 (bug fix) Fixed core dump that could occur if a syntax error
-(such as missing close paren) occurred in an array reference with a
-very long array name. (JO)
-
-3/4/96 (bug fix) Removed code in the "auto_load" procedure that deletes
-all existing auto-load information whenever the "auto_path" variable
-is changed.  Instead, new information adds to what was already there.
-Otherwise, changing the "auto_path" variable causes all package-
-related information to be lost.  If you really want to get rid of
-existing auto-load information, use auto_reset before setting auto_path. (JO)
-
-3/5/96 (new feature) Added version suffix to shared library names so that
-Tcl will compile under NetBSD and FreeBSD (I hope).  (JO)
-
-3/6/96 (bug fix) Cleaned up error messages in new I/O system to correspond
-more closely to old I/O system. (JO)
-
-3/6/96 (new feature) Added -myaddr and -myport options to the socket
-command, removed -tcp and -- options.  This lets clients and servers
-choose a particular interface.  Also changed the default server address
-from the hostname to INADDR_ANY.  The server accept callback now gets
-passed the client's port as well as IP address.  The C interfaces for
-Tcl_OpenTcpClient and Tcl_OpenTcpServer have changed to support the
-above changes. (BW)
-*** POTENTIAL INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
-
-3/6/96 (changed feature) The library function auto_mkindex will now
-default to using the pattern "*.tcl" if no pattern is given. (RJ)
-
-3/6/96 (bug fix) The socket channel code for the Macintosh has been
-rewritten to use native MacTcp.  (RJ)
-
-3/7/96 (new feature) Added Tcl_SetStdChannel and Tcl_GetStdChannel
-interfaces to allow applications to explicitly set and get the global
-standard channels. (SS)
-
-3/7/96 (bug fix) Tcl did close not the file descriptors associated
-with "stdout", etc. when the corresponding channels were closed.  (SS)
-
-3/7/96 (bug fix) Reworked shared library and dynamic loading stuff to
-try to get it working under AIX.  Added new @SHLIB_LD_LIBS@ autoconf
-symbol as part of this.  AIX probably doesn't work yet, but it should
-be a lot closer. (JO)
-
-3/7/96 (feature change) Added Tcl_ChannelProc typedef and changed the
-signature of Tcl_CreateChannelHandler and Tcl_DeleteChannelHandler to take
-Tcl_ChannelProc arguments instead of Tcl_FileProc arguments. This change
-should not affect any code outside Tcl because the signatures of
-Tcl_ChannelProc and Tcl_FileProc are compatible. (JL)
-
-3/7/96 (API change) Modified signature of Tcl_GetChannelOption to return
-an int instead of char *, and to take a Tcl_DString * argument. Modified
-the implementation so that the option name can be NULL, to mean that the
-call should retrieve a list of alternating option names and values. (JL)
-*** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
-
-3/7/96 (API change) Added Tcl_DriverSetOptionProc, Tcl_DriverGetOptionProc
-typedefs, added two slots setOptionProc and getOptionProc to the channel
-type structure. These may be NULL to indicate that the channel type does
-not support any options. (JL)
-*** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
-
-3/7/96 (feature change) stdin, stdout and stderr can now be put into
-nonblocking mode. (JL)
-
-3/8/96 (feature change) Eliminated dependence on the registry for
-finding the Tcl library files. (SS)
-
------------------ Released 7.5b3, 3/8/96 -----------------------
-
-3/12/96 (feature improvement) Modified startup script to look in several
-different places for the Tcl library directory.  This should allow Tcl
-to find the libraries under all but the weirdest conditions, even without
-the TCL_LIBRARY environment variable being set. (JO)
-
-3/13/96 (bug fix) Eliminated use of the "linger" option from the Windows
-socket implementation. (JL)
-
-3/13/96 (new feature) Added -peername and -sockname options for fconfigure
-for socket channels. Code contributed by John Haxby of HP. (JL)
-
-3/13/96 (bug fix) Fixed panic and core dump that would occur if the accept
-callback script on a server socket encountered an error. (JL)
-
-3/13/96 (feature change) Added -async option to the Tcl socket command.
-If the command is creating a client socket and the flag is present, the
-client is connected asynchronously. If the option is absent (the default),
-the client socket is connected synchronously, and the command returns only
-when the connection has been completed or failed. This change was suggested
-by Mark Diekhans. (JL)
-
-3/13/96 (feature change) Modified the signature of Tcl_OpenTcpClient to
-take an additional int argument, async. If nonzero, the client is connected
-to the server asynchronously. If the value is zero, the connection is made
-synchronously, and the call to Tcl_OpenTcpClient returns only when the
-connection fails or succeeds. This change was suggested by Mark Diekhans. (JL)
-*** INCOMPATIBILITY with Tcl 7.5b3, but not with Tcl 7.4 ***
-
-3/14/96 (bug fix) "tclsh bogus_file_name" didn't print an error message. (JO)
-
-3/14/96 (bug fix) Added new procedures to tclCkalloc.c so that libraries
-and applications can be compiled with TCL_MEM_DEBUG even if Tcl isn't
-(however, the converse is still not true).  Patches provided by Jan
-Nijtmans. (JO)
-
-3/15/96 (bug fix) Marked standard IO handles of a process as close-on-exec
-to fix bug in Ultrix where exec was not sharing standard IO handles with
-subprocesses. Fix suggested by Mark Diekhans. (JL)
-
-3/15/96 (bug fix) Fixed asynchronous close mechanism so that it closes the
-channel instead of leaking system resources. The manifestation was that Tcl
-would eventually run out of file descriptors if it was handling a large
-number of nonblocking sockets or pipes with high congestion. (JL)
-
-3/15/96 (bug fix) Fixed tests so that they no longer leak file descriptors.
-The manifestation was that Tcl would eventually run out of file descriptors
-if the tests were rerun many times (> a hundred times on Solaris). (JL)
-
-3/15/96 (bug fix) Fixed channel creation code so that it never creates
-unnamed channels. This would cause a panic and core dump when the channel
-was closed. (JL)
-
-3/16/96 (bug fixes) Made lots of changes in configuration stuff to get
-Tcl working under AIX (finally).  Tcl should now support the "load"
-command under AIX and should work either with or without shared
-libraries for Tcl and Tk. (JO)
-
-3/21/96 (configuration improvement) Changed configure script so it
-doesn't use version numbers (as in -ltcl7.5 and libtcl7.5.so) under
-SunOS 4.1, where they don't work anyway.  (JO)
-
-3/22/96 (new feature) Added C API Tcl_InterpDeleted that allows extension
-writers to discover when an interpreter is being deleted. (JL)
-
-3/22/96 (bug fix) The standard IO channels are now added to each
-trusted interpreter as soon as the interpreter is created. This ensures
-against the bug where a child would do IO before the master had done any,
-and then the child is destroyed - the standard IO channels would be then
-closed and the master would be unable to do any IO. (JL)
-
-3/22/96 (bug fix) Made Tcl more robust against interpreter deletion, by
-using Tcl_Preserve, Tcl_Release and Tcl_EventuallyFree to split the process
-of interpreter deletion into two distinct phases. Also went through all of
-Tcl and added calls to Tcl_Preserve and Tcl_Delete where needed. (JL)
-
-3/22/96 (bug fix) Fixed several places where C code was reading and writing
-into freed memory, especially during interpreter deletion. (JL)
-
-3/22/96 (bug fix) Fixed very deep bug in Tcl_Release that caused memory to
-be freed twice if the release callback did Tcl_Preserve and Tcl_Release on
-the same memory as the chunk currently being freed. (JL)
-
-3/22/96 (bug fix) Removed several memory leaks that would cause memory
-buildup on half-K chunks in the generic IO level. (JL)
-
-3/22/96 (bug fix) Fixed several core dumps which occurred when new
-AssocData was being created during the cleanups in interpreter deletion.
-The solution implemented now is to loop repeatedly over the AssocData until
-none is left to clean up. (JL)
-
-3/22/96 (bug fix) Fixed a bug in event handling which caused an infinite
-loop if there were no files being watched and no timer. Fix suggested by
-Jan Nijtmans. (JL)
-
-3/22/96 (bug fix) Fixed Tcl_CreateCommand, Tcl_DeleteCommand to be more
-robust if the interpreter is being deleted. Also fixed several order
-dependency bugs in Tcl_DeleteCommand which kicked in when an interpreter
-was being deleted. (JL)
-
-3/26/96 (bug fix) Upon a "short read", the generic code no longer calls
-the driver for more input. Doing this caused blocking on some platforms
-even on nonblocking channels. Bug and fix courtesy Mark Roseman. (JL)
-
-3/26/96 (new feature) Added 'package Tcltest' which is present only in
-test versions of Tcl; this allows the testing commands to be loaded into
-new interpreters besides the main one. (JL)
-
-3/26/96 (restored feature) Recreated the Tcl_GetOpenFile C API. You can
-now get a FILE * from a registered channel; Unix only. (JL)
-
-3/27/96 (bug fix) The regular expression code did not support more
-than 9 subexpressions.  It now supports up to 20. (SS)
-
-4/1/96 (bug fixes) The CHANNEL_BLOCKED bit was being left on on a short
-read, so that fileevents wouldn't fire correctly. Bug reported by Mark
-Roseman.(JL, RJ)
-
-4/1/96 (bug fix) Moved Tcl_Release to match Tcl_Preserve exactly, in
-tclInterp.c; previously interpreters were being freed only conditionally
-and sometimes not at all. (JL)
-
-4/1/96 (bug fix) Fixed error reporting in slave interpreters when the
-error message was being generated directly by C code. Fix suggested by
-Viktor Dukhovni of ESM. (JL)
-
-4/2/96 (bug fixes) Fixed a series of bugs in Windows sockets that caused
-events to variously get lost, to get sent multiple times, or to be ignored
-by the driver. The manifestation was blocking if the channel is blocking,
-and either getting EAGAIN or infinite loops if the channel is nonblocking.
-This series of bugs was found by Ian Wallis of Cisco. Now all tests (also
-those that were previously commented out) in socket.test pass.  (JL, SS)
-
-4/2/96 (feature change/bug fix) Eliminated network name support in
-favor of better native name support.  Added "file split", "file join",
-and "file pathtype" commands.  See the "file" man page for more
-details. (SS)
-*** INCOMPATIBILITY with Tcl 7.5b3, but not with Tcl 7.4 ***
-
-4/2/96 (bug fix) Changed implementation of auto_mkindex so tclIndex
-files will properly handle path names in a cross platform context. (SS)
-
-4/5/96 (bug fix) Fixed Tcl_ReadCmd to use the channel buffer size as the
-chunk size it reads, instead of a fixed 4K size. Thus, on large reads, the
-user can set the channel buffer size to a large size and the read will
-occur orders of magnitude faster. For example, on a 2MB file, reading in 4K
-chunks took 34 seconds, while reading in 1MB chunks took 1.5 seconds (on a
-SS-20). Problem identified and fix suggested by John Haxby of HP. (JL)
-
-4/5/96 (bug fix) Fixed socket creation code to invoke gethostbyname only if
-inet_addr failed (very unlikely). Before this change the order was reversed
-and this made things much slower than they needed to be (gethostbyname
-generally requires an RPC, which is slow). Problem identified and fix
-suggested by John Loverso of OSF. (JL)
-
-4/9/96 (feature change) Modified "auto" translation mode so that it
-recognizes any of "\n", "\r" and "\r\n" in input as end of line, so
-that a file can have mixed end-of-line sequences. It now outputs
-the platform specific end of line sequence on each platform for files and
-pipes, and for sockets it produces crlf in output on all platforms. (JL)
-*** INCOMPATIBILITY with Tcl 7.5b3, but not with Tcl 7.4 ***
-
-4/11/96 (new feature) Added -eofchar option to Tcl_SetChannelOption to allow
-setting of an end of file character for input and output. If an input eof
-char is set, it is recognized as EOF and further input from the channel is
-not presented to the caller. If an output eof char is set, on output, that
-byte is appended to the channel when it is closed. On Unix and Macintosh,
-all channels start with no eof char set for input or output. On Windows,
-files and pipes start with input and output eof chars set to Crlt-Z (ascii
-26), and sockets start with no input or output eof char. (JL)
-*** INCOMPATIBILITY with Tcl 7.5b3, but not with Tcl 7.4 ***
-
-4/17/96 (bug fix) Fixed series of bugs with handling of crlf sequence split
-across buffer boundaries in input, in AUTO mode. (JL, BW)
-
-4/17/96 (test suite improvement) Fixed test suite so that tests that
-depend on the availability of Unix commands such as echo, cat and others
-are not run if these commands are not present. (JL)
-
-4/17/96 (test suite improvement) The socket test now automatically starts,
-on platformst that support exec, a separate process for remote testsing. (JL)
-
------------------ Released 7.5, 4/21/96 -----------------------
-
-5/1/96 (bug fix) "file tail ~" did not correctly return the tail
-portion of the user's home directory. (SS)
-
-5/1/96 (bug fix) Fixed bug in TclGetEnv where it didn't lookup environment
-variables correctly:  could confuse "H" and "HOME", for example.  (JO)
-
-5/1/96 (bug fix) Changed to install tclConfig.sh under "make install-binaries",
-not "make install-libraries".  (JO)
-
-5/2/96 (bug fix) Changed pkg_mkIndex not to attempt to "load" a file unless
-it has the standard shared library extension.  On SunOS, attempts to load
-Tcl scripts cause the whole application to be aborted (there's no way to
-get the error back into Tcl).  (JO)
-
-5/7/96 (bug fix) Moved initScript in tclUnixInit.c to writable memory to
-avoid potential core dumps. (JO)
-
-5/7/96 (bug fix) Auto_reset procedure was removing procedure from init.tcl,
-such as pkg_mkIndex.  (JO)
-
-5/7/96 (bug fix) Fixed cast on socket address resolution code that
-would cause a failure to connect on Dec Alphas. (JL)
-
-5/7/96 (bug fix) Added "time", "subst" and "fileevent" commands to set of
-commands available in a safe interpreter. (JL)
-
-5/13/96 (bug fix) Preventing OS level handles for stdin, stdout and stderr
-from being implicitly closed when the last reference to the standard
-channel containing that handle is discarded when an interpreter is deleted.
-Explicitly closing standard channels by using "close" still works. (JL)
-
-5/21/96 (bug fix) Do not create channels for stdin, stdout and stderr on
-Unix if the devices are closed. This prevents a duplicate channel name
-panic later on when the fd is used to open a channel and the channel is
-registered in an interpreter. (JL)
-
-5/23/96 (bug fix) Fixed bug that prevented the use of standard channels in
-interpreters created after the last interpreter was destroyed. In the sequence
-
-	interp = Tcl_CreateInterp();
-	Tcl_DeleteInterp(interp);
-	interp = Tcl_CreateInterp();
-
-channels for stdio would not be available in the second interpreter. (JL)
-
-5/23/96 (bug fix) Fixed bug that allowed Tcl_MakeFileChannel to create new
-channels with Tcl_Files in them that are already used by another channel.
-This would cause core dumps when the Tcl_Files were being freed twice. (JL)
-
-5/23/96 (bug fix) Fixed a logical timing bug that caused a standard channel
-to be removed from the standard channel table too early when the channel
-was being closed. If the channel was being flushed asynchronously, it could
-get recreated before being actually destroyed, and the recreated channel
-would contain the same Tcl_File as the one being closed, leading to
-dangling pointers and core dumps. (JL)
-
-5/27/96 (bug fix) Fixed a bug in Tcl_GetChannelOption which caused it to
-always return a list of one element, a list of the settings, for
--translation and -eofchar options. Now correctly returns the value
-described by the documentation (Mark Diekhans found this, thanks!). (JL)
-
-5/30/96 (bug fix) Fixed a couple of syntax errors in io.test. (JL)
-
-5/30/96 (bug fix) If a fileevent scripts gets an error, delete it before
-causing a background error. This is to allow the error handler to reinstall
-the fileevent and to prevent infinite loops if the event loop is reentered
-in the error handler. (JL)
-
-5/31/96 (bug fix) Channels now will get properly flushed on exit. (JL)
-
-6/5/96 (bug fix) Changed Tcl_Ckalloc, Tcl_Ckfree, and Tcl_Ckrealloc to
-Tcl_Alloc, Tcl_Free, and Tcl_Realloc.  Added documentation for these
-routines now that they are officially supported.  Extension writers
-should use these routines instead of free() and malloc(). (SS)
-
-6/10/96 (bug fix) Changes the Tcl close command so that it no longer
-waits on nonblocking pipes for the piped processes to exit; instead it
-reaps them in the background. (JL)
-
-6/11/96 (bug fix) Increased the length of the listen queue for server
-sockets on Unix from 5 to 100. Some OSes will disregard this and reset it
-to 5, but we should try to get as long a queue as we can, for performance
-reasons. (JL)
-
-6/11/96 (bug fix) Fixed windows sockets bug that caused a cascade of events
-if the fileevent script read less than was available. Now reading less than
-is available does not cause a flood of Tcl events. (JL, SS)
-
-6/11/96 (bug fix) Fixed bug in background flushing on closed channels that
-would prevent the last buffer from getting flushed. (JL)
-
-6/13/96 (bug fix) Fixed bug in Windows sockets that caused a core dump if
-a DLL linked with tcl.dll and referred to e.g. ntohs() without opening a
-Tcl socket. The problem was that the indirection table was not being
-initialized. (JL)
-
-6/13/96 (bug fix) Fixed OS level resource leak that would occur when a
-Tcl channel was still registered in some interpreter when the process
-exits. Previously the channel was not being closed and the OS level handles
-were not being released; the output was being flushed but the device was
-not being closed. Now the device is properly closed. This was only a
-problem on Win3.1 and MacOS. (JL, SS)
-
-6/28/96 (bug fix) Fixed bug where transient errors were leaving an error
-code around, so that it would erroneously get reported later. This bug was
-exercised intermittently by closing a channel to a file on a very loaded
-NFS server, or to a socket whose other end blocked. (JL, BW)
-
-7/3/96 (bug fix) Fileevents declared in an interpreter are now deleted
-when the channel is closed in that interpreter. Before this fix, the
-fileevent would hang around until the channel is completely closed, and
-would cause errors if events happened before the channel was closed. This
-could happen in two cases: first if the channel is shared between several
-interpreters, and second if an async flush is in progress that prevents the
-channel from being closed until the flush finishes. (JL)
-
-7/10/96 (bug fix) Fixed bugs in both "lrange" and "lreplace" commands
-where too much white space was being removed. For example, the command
-		lreplace {\}\     hello} end end
-was returning "\}\", losing the significant space in the first list
-element and corrupting the list. (JO)
-
-7/20/96 (bug fix) The procedure pkg_mkIndex didn't work properly for
-extensions that depend on Tk, because it didn't load Tk into the child
-interpreter before loading the extension.  Now it loads Tk if Tk is
-present in the parent. (JO)
-
-7/23/96 (bug fix) Added compat version of strftime to fix crashes
-resulting from bad implementations under Windows. (SS)
-
-7/23/96 (bug fix) Standard implementations of gmtime() and localtime()
-under Windows did not handle dates before 1970, so they were replaced
-with a revised implementation. (SS)
-
-7/23/96 (bug fix) Tcl would crash on exit under Borland 5.0 because
-the global environ pointer was left pointing to freed memory. (SS)
-
-7/29/96 (bug fix) Fixed memory leak in Tcl_LoadCmd that could occur if
-a package's AppInit procedure called Tcl_StaticPackage to register
-static packages. (JO)
-
-8/1/96 (bug fix) Fixed a series of bugs in Windows sockets so that async
-writebehind in the presence of read event handlers now works, and so that
-async writebehind also works on sockets for which a read event handler was
-declared and whose channels were then closed before the async write
-finished. The bug was reported by John Loverso and Steven Wahl,
-independently, test case supplied by John Loverso. (JL)
-
------------------ Released patch 7.5p1, 8/2/96 -----------------------
-
-5/8/96 (new feature) Added Tcl_GetChannelMode C API for retrieving whether
-a channel is open for reading and writing. (JL)
-
-5/8/96 (API changes) Revised C APIs for channel drivers:
-    - Removed all Tcl_Files from channel driver interface; you can now have
-      channels that are not based on Tcl_Files.
-    - Added channelReadyProc and watchChannelProc procedures to interface;
-      these are used to implement event notification for channels.
-    - Added getFileProc to channel driver, to allow the generic IO code
-      to retrieve a Tcl_File from a channel (presumably if the channel
-      uses Tcl_Files they will be stored inside its instanceData). (JL)
-*** INCOMPATIBILITY with Tcl 7.5 ***
-
-5/8/96 (API change) The Tcl_CreateChannel C API was modified to not take
-Tcl_File arguments, and instead to take a mask specifying whether the
-channel is readable and/or writable. (JL)
-*** INCOMPATIBILITY with Tcl 7.5 ***
-
-6/3/96 (bug fix) Made Tcl_SetVar2 robust against the case where the value
-of the variable is a NULL pointer instead of "". (JL)
-
-6/17/96 (bug fix) Fixed "reading uninitialized memory" error reported by
-Purify, in Tcl_Preserve/Tcl_Release. (JL)
-
-8/9/96 (bug fix) Fixed bug in init.tcl that caused incorrect error message
-if the act of autoloading a procedure caused the procedure to be invoked
-again. (JO)
-
-8/9/96 (bug fix) Configure script produced bad library names and extensions
-under SunOS and a few other platforms if the --disable-load switch was used.
-(JO)
-
-8/9/96 (bug fix) Tcl_UpdateLinkedVar generated an error if the variable
-being updated was read-only. (JO)
-
-8/14/96 (bug fix) The macintosh now supports synchronous socket
-connections.  Other minor bugs were also fixed. (RJ)
-
-8/15/96 (configuration improvement) Changed the file patchlevel.h
-to be tclPatch.h.  This avoids conflict with the Tk file and is now
-in 8.3 format on the Windows platform. (RJ)
-
-8/20/96 (bug fix) Fixed core dump in interp alias command for interpreters
-created with Tcl_CreateInterp (as opposed to with Tcl_CreateSlave). (JL)
-
-8/20/96 (bug fix) No longer masking ECONNRESET on Windows sockets so
-that the higher level of the IO mechanism sees the error instead of
-entering an infinite loop. (JL)
-
-8/20/96 (bug fix) Destroying the last interpreter no longer closes the
-standard channels. (JL)
-
-8/20/96 (bug fix) Closing one of the stdin, stdout or stderr channels and
-then opening a new channel now correctly assigns the new channel as the
-standard channel that was closed. (JL)
-
-8/20/96 (bug fix) Added code to unix/tclUnixChan.c for using ioctl with
-FIONBIO instead of fcntl with O_NONBLOCK, for those versions of Unix where
-either O_NONBLOCK is not supported or implemented incorrectly. (JL)
-
-8/21/96 (bug fix) Fixed "file extension" so it correctly returns the
-extension on files like "foo..c" as "..c" instead of ".c". (SS)
-
-8/22/96 (bug fix) If environ[] contains static strings, Tcl would core
-dump in TclSetupEnv because it was trying to write NULLs into the actual
-data in environ[]. Now we instead copy as appropriate. (JL)
-
-8/22/96 (added impl) Added missing implementation of Tcl_MakeTcpClientChannel
-for Windows platform. Code contributed by Mark Diekhans. (JL)
-
-8/22/96 (new feature) Added a new memory allocator for the Macintosh
-version of Tcl.  It's quite a bit faster than MetroWerk's version. (RJ)
-
-8/26/96 (documentation update) Removed old change bars (for all changes
-in Tcl 7.5 and earlier releases) from manual entries. (JO)
-
-8/27/96 (enhancement) The exec and open commands behave better and work in
-more situations under Windows NT and Windows 95.  Documentation describes
-what is still lacking. (CS)
-
-8/27/96 (enhancement) The Windows makefiles will now compile even if the
-compiler is not in the path and/or the compiler's environment variables
-have not been set up. (CS)
-
-8/27/96 (configuration improvement) The Windows resource files are
-automatically updated when the version/patch level changes.  The header file
-now has a comment that reminds the user which other files must be manually
-updated when the version/patch level changes. (CS)
-
-8/28/96 (new feature) Added file manipulation features (copy, rename, delete,
-mkdir) that are supported on all platforms. They are implemented as
-subcommands to the "file" command. See the documentation for the "file"
-command for more information. (JH)
-
------------------ Released 7.6b1, 8/30/96 -----------------------
-
-9/3/96 (bug fix) Simplified code so that standard channels are created
-lazily, they are added to an interpreter lazily, and they are never added
-to a safe interpreter. (JL)
-
-9/3/96 (bug fix) Closing a channel after closing a standard channel, e.g.
-stdout, would cause the implicit recreation of that standard channel. (JL)
-
-9/3/96 (new feature) Now calling Tcl_RegisterChannel with a NULL
-interpreter increments the refcount so that code outside any interpreter
-can use channels that are also registered in interpreters, without worrying
-that the channel may turn into a dangling pointer at any time. Calling
-Tcl_UnregisterChannel with a NULL interpreter only decrements the recount
-so that code outside any interpreter can safely declare it is no longer
-interested in a channel. (JL)
-
-9/4/96 (new features) Two changes to dynamic loading:
-    - If the file name is empty in the "load" command and there is no
-      statically loaded version of the package, a dynamically loaded
-      version will be used if there is one.
-    - Tcl_StaticPackage ignores redundant calls for the same package. (JO)
-
-9/6/96 (bug fix) Platform specific procedures for manipulating files are
-no longer macros and have been prefixed with "Tclp", such as TclpRenameFile.
-Unix file code now handles symbolic links and other special files correctly.
-The semantics of file copy and file rename has been changed so that if
-a target directory exists, the source files will NOT be merged with the
-existing files. (JH)
-
-9/6/96 (bug fix) If standard channel is NULL, because Tcl cannot connect
-to the standard channel, do not increment the refcount. The channel can
-be NULL if there is for example no standard input. (JL)
-
-9/6/96 (portability improvement) Changed parsing of backslash sequences
-like \n to translate directly to absolute values like 0xA instead of
-letting the compiler do the translation.  This guarantees that the
-translation is done the same everywhere. (JO)
-
-9/9/96 (bug fix) If channel is opened and not associated with any
-interpreter, but Tcl decides to use it as one of the standard channels, it
-became impossible to close the channel with Tcl_Close -- instead you had
-to call Tcl_UnregisterChannel. Fixed now so that it's safe to call
-Tcl_Close even when Tcl is using the channel as one of the standard ones. (JL)
-
-9/11/96 (feature change) The Tcl library is now placed in the Tcl
-shared libraries resource.  You no longer need to place the Tcl files
-in your applications explicitly.  (RJ)
-
-9/11/96 (feature change) Extensions no longer automatically have the
-resource fork of the extension opened for it.  Instead you need to
-use the tclMacLibrary.c file in your extension.  (RJ)
-*** POTENTIAL INCOMPATIBILITY ***
-
-9/12/96 (bug fix) The extension loading mechanism on the Macintosh now
-looks at the 'cfrg' resource to determine where to load the code
-fragment from.  This means FAT fragments should now work. (RJ)
-
-9/18/96 (enhancement) The exec and open commands behave better and work in
-more situations under Windows 3.X.  Documentation describes what is still
-lacking.  (CS)
-
-9/19/96 (bug fix) Fixed a panic which would occur if you delete a
-non-existent alias before any aliases are created. Now instead correctly
-returns an error that the alias is not found. (JL)
-
-9/19/96 (bug fix) Slave interpreters could rename aliases and they would
-not get deleted when the alias was being redefined. This led to dangling
-pointers etc. (JL)
-
-9/19/96 (bug fix) Fixed a panic where a hash table entry was being deleted
-twice during alias management operations. (JL)
-
-9/19/96 (bug fix) Fixed bug in event loop that could cause the input focus
-in Tk to get confused during menu traversal, among other problems.  The
-problem was related to handling of the "marker" when its event was
-deleted. (JO)
-
-9/26/96 (bug fix) Windows was losing EOF on a socket if the FD_CLOSE event
-happened to precede any left over FD_READ events. Now correctly remembers
-seeing FD_CLOSE, so that trailing FD_READ events are not discarded if they
-do not contain any data. This allows Tcl to correctly get a zero read and
-notice EOF. (JL)
-
-9/26/96 (bug fix) Was not resetting READABLE state properly on sockets
-under Windows if the driver discarded an FD_READ event because no data was
-present. Now correctly resets the state. (JL)
-
-9/30/96 (bug fix) Made EOF sticky on Windows sockets, so that fileevent
-readable will fire repeatedly until the socket is closed. Previously the
-fileevent fired only once. This could lead to never-closed connections if
-the Tcl script in the fileevent wasn't closing the socket immediately. (JL)
-
-10/2/96 (new feature) Improved the package loader:
-    - Added new variable tcl_pkgPath, which holds the default
-      directories under which packages are normally installed (each
-      package goes in a separate subdirectory of a directory in
-      $tcl_pkgPath).  These directories are included in auto_path by
-      default.
-    - Changed the package auto-loader to look for pkgIndex.tcl files
-      not only in the auto_path directories but also in their immediate
-      children.  This should make it easier to install and uninstall
-      packages (don't have to change auto_path or merge pkgIndex.tcl
-      files). (JO)
-
-10/3/96 (bug fix) Changed tclsh to look for tclshrc.tcl instead of
-tclsh.rc on startup under Windows.  This is more consistent with wish and
-uses the right extension. (SS)
-*** POTENTIAL INCOMPATIBILITY ***
-
-10/8/96 (bug fix) Convertclock does not parse 24-hour times of the
-form "hhmm" correctly when hour = 00.  In the parse code, hour must be
->= 100 for minutes to be non-zero.  Thanks to Lint LaCour for this
-bug fix. (RJ)
-
-10/11/96 (bug fix) Under Windows, the pid command returned the process
-handle instead of the process id. (SS)
-
------------------ Released 7.6, 10/16/96 -----------------------
-
-10/29/96 (bug fix) Under Windows, sockets would consume 100% CPU time after
-the first accept(), due to a typo. (JL)
-
-10/29/96 (bug fix) Incorrect refcount management caused standard channels
-not to get deleted at process exit or DLL unload time, causing a memory
-leak of upwards of 20K each time. (JL)
-
-11/7/96 (bug fix) Auto-exec didn't work on file names that contained
-spaces. (JO)
-
-11/8/96 (bug fix) Fixed core dump that would occur if more than one call
-to Tcl_DeleteChannelHandler was made to delete a given channel handler. (JL)
-
-11/8/96 (bug fix) Fixed test for return value in Tcl_Seek and Tcl_SeekCmd
-to only treat -1 as error, instead of all negative numbers. (JL)
-
-11/12/96 (bug fix) Do not blocking waiting for processes at the end of a
-pipe during exit cleanup. (JL)
-
-11/12/96 (bug fix) If we are in exit cleanup, do not close the system level
-file descriptors 0, 1 and 2. Previously they were being closed which is
-incorrect, in the embedded case. This led to weird behavior for programs
-that want to interpose on I/O through the standard file descriptors (e.g.
-Netscape Navigator). (JL)
-
-11/15/96 (bug fix) Fixed core dump on Windows sockets due to dependency on
-deletion order at exit. Now all socket functions check to see if sockets
-are (still) initialized, before calling through function pointers. Before,
-they would call and might end up calling unloaded object code. (JL)
-
-11/15/96 (bug fix) Fixed core dump in Windows socket initialization routine
-if sockets were not installed on the system. Before, it was not properly
-checking the result of attempting to load the socket DLL, so it would call
-through uninitialized function pointers. (JL)
-
-11/15/96 (bug fix) Fixed memory leak in Windows sockets which left socket
-DLL handle open and could hold the socket DLL in memory uneccessarily,
-until a reboot. (JL)
-
-12/4/96 (bug fix) Fixed bug in Macintosh socket code that could result
-in lost data if a client was closed too soon after sending data. (RJ)
-
-12/17/96 (bug fix) Fixed deadlock bug in Windows sockets due to losing an
-event. This was happening because of an interaction between buffering and
-nonblocking mode on sockets. Now switched to sockets being blocking by
-default, so we are also no longer emulating blocking through a private
-event loop. (JL)
-
-1/21/97 (performance bug fix) Client TCP connections were slow to create
-because getservbyname was always called on the port.  Now this is only
-done if Tcl_GetInt fails. (BW)
-
-1/21/97 (configuration fix) Made it possible to override TCL_PACKAGE_PATH
-during make.  Previously it was only set during autoconf process.
-
-1/29/97 (bug fix) Fixed some problems with the clock command that
-impacted how dates were scaned after the year 2000. (RJ)
-
------------------ Released 7.6p2, 1/31/97 -----------------------
-
-2/5/97 (bug fix) Fixed a bug where in CR-LF translation mode, \r bytes
-in the input stream were not being handled correctly. (JL)
-
-2/24/97 (bug fix) Fix bug with exec under Win32s not being able to create
-stderr file which caused all execs to fail.  Fixed temp file leak under
-Win32s.  Fixed optional parameter bug with SearchPath that only happened
-under Win32s 1.25. (CCS)
-
-----------------------------------------------------------
-Changes for Tcl 7.6 go above this line.
-Changes for Tcl 7.7 go below this line.
-----------------------------------------------------------
-
-5/8/96 (new feature) Added Tcl_Ungets C API for putting a sequence of bytes
-into a channel's input buffer. This can be used for "push" model channels
-where the input is obtained via callbacks instead of by request of the
-generic IO code. No Tcl procedure yet. (JL)
-
-11/15/96 (new feature) Implemented hidden commands. New C APIs:
-	Tcl_HideCommand		-- hides an existing exposed command.
-	Tcl_ExposeCommand	-- exposes an existing hidden command.
-New tcl APIs:
-	interp invokehidden	-- invokes a hidden command in a slave.
-	interp hide		-- hides an existing exposed command.
-	interp expose		-- exposes an existing hidden command.
-	interp hidden		-- returns a list of hidden commands.
-The implementation of Safe Tcl now uses the new hidden commands facility
-to implement the safe base, instead of deleting the commands from a safe
-interpreter. (JL)
-
-11/15/96 (new feature) Implemented the safe base, a mechanism for
-installing and requesting security policies, purely in Tcl code. Overloads
-the package command to also allow an interpreter to "require" a policy. The
-following new library commands are provided:
-	tcl_safeCreateInterp	-- creates a slave an initializes the
-				   policy mechanism.
-	tcl_safeInitInterp	-- initializes an existing slave with the
-				   policy mechanism.
-	tcl_safeDeleteInterp	-- deletes a slave and deinitializes the
-				   policy mechanism.
-Added a new file to the library, safeinit.tcl, to hold implementation. (JL)
-On 7/9/97, removed the policy loading mechanism from the Safe Base. Left
-only the Safe Base aliases dealing with auto-loading and source. (JL)
-
-12/6/96 (new feature) Implemented Tcl_Finalize, an API that should be
-called by a process when it is done using Tcl. This API runs all the exit
-handlers to allow them to clean up resources etc. (JL)
-
-12/17/96 (new feature) Add an http Tcl script package to the Tcl library.
-This package implements the client side of HTTP/1.0; the GET, HEAD,
-and POST requests. (BW)
-
-1/21/97 (new feature) Added a "marktrusted" subcommand to the "interp" and
-to the interpreter object command. It removes the "safe" mark on an
-interpreter and disables hard-wired checks for safety in the C sources. (JL)
-
-1/21/97 (removed feature) Removed "vwait" from set of commands available in
-a safe interpreter. (JL)
-
-2/11/97 (new feature, bug fix) http package.  Added -accept to http_config
-so you can set the Accept header.  Added -handler option to http_get so
-you can supply your own data handler.  Also fixed POST operation to
-set the correct MIME type on the request. (BW)
-
-----------------------------------------------------------
-Changes for Tcl 7.7 go above this line.
-Changes for Tcl 8.0 go below this line.
-----------------------------------------------------------
-
-9/17/96 (bug fix) Using "upvar" it was possible to turn an array element
-into an array itself.  Changed to disallow this; it was quirky and didn't
-really work correctly anyway. (JO)
-
-10/21/96 (new feature) The core of the Tcl interpreter has been replaced
-with an on-the-fly compiler that translates Tcl scripts to bytecoded
-instructions; a new interpreter then executes the bytecodes. The compiler
-introduces only a few minor changes at the level of Tcl scripts. The biggest
-changes are to expressions and lists.
-    - A second level of substitutions is no longer done for expressions.
-      This substantially improves their execution time. This means that
-      the expression "$x*4" produces a different result than in the past
-      if x is "$y+2". Fortunately, not much code depends on the old
-      two-level semantics. Some expressions that do, such as
-      "expr [join $list +]" can be recoded to work in Tcl8.0 by adding
-      an eval: e.g., "eval expr [join $list +]".
-    - Lists are now completely parsed on the first list operation to
-      create a faster internal representation. In the past, if you had a
-      misformed list but the erroneous part was after the point you
-      inserted or extracted an element, then you never saw an error.
-      In Tcl8.0 an error will be reported. This should only effect
-      incorrect programs that took advantage of behavior of the old
-      implementation that was not documented in the man pages.
-Other changes to Tcl scripts are discussed in the web page at
-http://www.scriptics.com/doc/compiler.html. (BL)
-*** POTENTIAL INCOMPATIBILITY ***
-
-10/21/96 (new feature) In earlier versions of Tcl, strings were used as a
-universal representation; in Tcl 8.0 strings are replaced with Tcl_Obj
-structures ("objects") that can hold both a string value and an internal
-form such as a binary integer or compiled bytecodes. The new objects make it
-possible to store information in efficient internal forms and avoid the
-constant translations to and from strings that occurred with the old
-interpreter. There are new many new C APIs for managing objects. Some of the
-new library procedures for objects (such as Tcl_EvalObj) resemble existing
-string-based procedures (such as Tcl_Eval) but take advantage of the
-internal form stored in Tcl objects for greater speed. Other new procedures
-manage objects and allow extension writers to define new kinds of objects.
-See the manual entries doc/*Obj*.3 (BL)
-
-10/24/96 (bug fix) Fixed memory leak on exit caused by some IO related
-data structures not being deallocated on exit because their refcount was
-artificially boosted. (JL)
-
-10/24/96 (bug fix) Fixed core dump in Tcl_Close if called with NULL
-Tcl_Channel. (JL)
-
-11/19/96 (new feature) Added library procedures for finding word
-breaks in strings in a platform specific manner.  See the library.n
-manual entry for more information. (SS)
-
-11/22/96 (feature improvements) Added support for different levels of
-tracing during bytecode compilation and execution. This should help in
-tracking down suspected problems with the compiler or with converting
-existing code to use Tcl8.0. Two global Tcl variables, traceCompile
-and traceExec, can be set to generate tracing information in stdout:
-    - traceCompile: 0  no tracing (default)
-                    1  trace compilations of top level commands and procs
-                    2  trace and display instructions for all compilations
-    - traceExec:    0  no tracing
-                    1  trace only calls to Tcl procs
-                    2  trace invocations of all commands including procs
-                    3  detailed trace showing the result of each instruction
-traceExec >= 2 provides a one line summary of each called command and
-its arguments. Commands that have been "compiled away" such as set are
-not shown. (BL)
-
-11/30/96 (bug fix) The command "info nameofexecutable" could sometimes
-return the name of a directory. (JO)
-
-11/30/96 (feature improvements) Changed the code in library/init.tcl
-that reads in pkgIndex.tcl so that (a) it reads the files from child
-directories before those in the parent, so that the parent gets
-precedence, and (b) it doesn't quit if there is an error in a
-pkgIndex.tcl file;  instead, it prints an error message on standard
-error and continues. (JO)
-
-10/5/96 (feature improvements) Partial implementation of binary string
-support: the ability for Tcl string values to contain embedded null bytes.
-Changed the Tcl object-based APIs to take a byte pointer and length pair
-instead of a null-terminated C string. Modified several object type managers
-to support binary strings but not, for example, the list type manager.
-Existing string-based C APIs are unchanged and will truncate binary
-strings. Compiled scripts containing nulls are also truncated. (BL)
-
-12/12/96 (feature change) Removed the commands "cp", "mkdir", "mv",
-"rm", and "rmdir" from the Macintosh version of Tcl.  They were never
-officially supported and their functionality is now available via
-the file command. (RJ)
-
------------------ Released 8.0a1, 12/20/96 -----------------------
-
-1/7/97 (bug fix) Under Windows, "file stat c:" was returning error instead
-of stat for current dir on c: drive.
-
-1/10/97 (new feature) Added Tcl_GetIndexFromObj procedure for quick
-lookups of keyword arguments. (JO)
-
-1/12/97 (new feature) Serial IO channel drivers for Windows and Unix,
-available by using Tcl open command to open pseudo-files like "com1:" or
-"/dev/ttya".  New option to Tcl fconfigure command for serial files:
-"-mode baud,parity,data,stop" to specify baud rate, parity, data bits, and
-stop bits.  Serial IO is not yet available on Mac.
-
-1/16/97 (feature change) Restored the Tcl7.x "two level substitution
-semantics" for expressions. Expressions not enclosed in braces are
-implemented, in general, by calling the expr command procedure
-(Tcl_ExprObjCmd) at runtime after the Tcl interpreter has already done a
-first round of substitutions. This is slow (about Tcl7.x speed) because new
-code for the expression is generally compiled each time. However, if the
-expression has only variable substitutions (and not command substitutions),
-"optimistic" fast code is generated inline. This inline code will fail if a
-second round of substitutions is needed (i.e., if the value of a substituted
-variable itself requires more substitutions). The optimistic code will
-catch the error and back off to call the slower but guaranteed correct
-expr command procedure. (BL)
-
-1/16/97 (feature improvements) Added Tcl_ExprLongObj and Tcl_ExprDoubleObj
-to round out expression-related procedures. (BL)
-
-1/16/97 (feature change) Under Windows, at startup the environment variables
-"path", "comspec", and "windir" in any capitalization are converted
-automatically to upper case.  The PATH variable could be spelled as path,
-Path, PaTh, etc. and it makes programming rather annoying.  All other
-environment variables are left alone. (CS)
-
-1/20/97 (new features) Rewrote the "lsort" command:
-    - The new version is based on reentrant merge sort code provided
-      by Richard Hipp, so it eliminates the reentrancy and stability
-      problems with the old qsort-based implementation.
-    - The new version supports a -dictionary option for sorting, and
-      it also supports a -index option for sorting lists using one
-      element for comparison.
-    - The new version is an object command, so it works well with the
-      Tcl compiler, especially in conjunction with the new -index
-      option.  When the -index option is used, this version of lsort
-      is more than 100 times faster than the Tcl 7.6 lsort, which had
-      to use the -command option to get the same effect. (JO)
-
-1/20/97 (feature improvements) Added the improved debugging support for Tcl
-objects prototyped by Karl Lehenbauer <karl@hammer1.ops.NeoSoft.com>.
-If TCL_MEM_DEBUG is defined, the object creation calls use Tcl_DbCkalloc
-directly in order to record the caller's source file name and line
-number. (BL)
-
-1/21/97 (removed feature) Desupported the tcl_precision variable: if
-set, it is ignored.  Tcl now uses the full 17 digits of precision when
-converting real numbers to strings (with the new object system real
-numbers are rarely converted to strings so there is no efficiency
-disadvantage to printing all 17 digits; the new scheme improves
-accuracy and simplifies several APIs). (JO)
-*** POTENTIAL INCOMPATIBILITY ***
-
-1/21/97 (feature change) Removed the "interp" argument for the
-procedures Tcl_GetStringFromObj, Tcl_StringObjAppend, and
-Tcl_StringObjAppendObj.  Also removed the "interp" argument for
-the updateStringProc procedure in Tcl_ObjType structures.  With
-the tcl_precision changes above, these are no longer needed. (JO)
-*** POTENTIAL INCOMPATIBILITY with Tcl 8.0a1, but not with Tcl 7.6 ***
-
-1/22/97 (bug fix) Fixed http.tcl so that http_reset does not result in
-an extra call to the command callback.  In addition, if the transaction
-gets a premature eof, the state(status) is "eof", not "ok". (BW)
-
------------------ Released 8.0a2, 1/24/97 -----------------------
-
-1/29/97 (feature change) Changed how two digit years are parsed in the
-clock command.  The old interface just added 1900 which will seem
-broken by the year 2000.  The new scheme follows the POSIX standard
-and treats dates 70-99 as 1970-1999 and dates 00-38 as 2000-2038.  All
-other two digit dates are undefined. (RJ)
-*** POTENTIAL INCOMPATIBILITY ***
-
-2/4/97 (bug fix) Fixed bug in clock code that dealt with relative
-dates.  Using the relative month code you could get an invalid date
-because it jumped into a non-existant day.  (For example, Jan 31
-to Feb 31.)  The code now will return the last valid day of the
-month in these situations.  Thanks to Hume Smith for sending in
-this bug fix.  (RJ)
-
-2/10/97 (feature change) Eliminated Tcl_StringObjAppend and
-Tcl_StringObjAppendObj procedures, replaced them with Tcl_AppendToObj
-and Tcl_AppendStringsToObj procedures.  Added new procedure
-Tcl_SetObjLength. (JO)
-*** POTENTIAL INCOMPATIBILITY with Tcl 8.0a2, but not with Tcl 7.6 ***
-
-2/10/97 (new feature) Added Tcl_WrongNumArgs procedure for generating
-error messages about incorrect number of arguments. (JO)
-
-2/11/97 (new feature, bug fix) http package.  Added -accept to http_config
-so you can set the Accept header.  Added -handler option to http_get so
-you can supply your own data handler.  Also fixed POST operation to
-set the correct MIME type on the request. (BW)
-
-2/22/97 (bug fix) Fixed bug that caused $tcl_platform(osVersion) to be
-computed incorrectly under AIX. (JO)
-
-2/25/97 (new feature, feature change) Added support for both int and long
-integer objects. Added Tcl_NewLongObj/Tcl_GetLongFromObj/Tcl_SetLongFromObj
-procedures and renamed the Tcl_Obj internalRep intValue member to
-longValue. Tcl_GetIntFromObj now checks for integer values too large to
-represent as non-long integers. Changed Tcl_GetAllObjTypes to
-Tcl_AppendAllObjTypes. (BL)
-
-3/5/97 (new feature) Added new Tcl_SetListObj procedure to round out
-collection of procedures that set the type and value of existing Tcl
-objects. (BL)
-
-3/6/97 (new feature) Added -global flag for interp invokehidden. (JL)
-
-3/6/97 (new feature, feature change) Added isNativeObjectProc field to the
-Tcl_CmdInfo structure to indicate (when 1) if the command has an
-object-based command procedure. Removed the nameLength arg from
-Tcl_CreateObjCommand since command names can't contain null characters. (BL)
-
-3/6/97 (bug fix) Fixed bug in "unknown" procedure that caused auto-
-loading to fail on commands whose names begin with digits. (JO)
-
-3/7/97 (bug fix) Auto-loading now works in Safe Base. Safe interpreters
-only accept the Version 2 and onwards tclIndex files. (JL)
-
-3/13/97 (bug fix) Fixed core dump due to interaction between aliases and
-hidden commands. Bug found by Lindsay Marshall. (JL)
-
-3/14/97 (bug fix) Fixed mac bugs relating to time.  The -gmt option
-now adjusts the time in the correct direction.  (Thanks to Ed Hume for
-reporting a fix to this problem.)  Also fixed file "mtime" etc. to
-return times from GMT rather than local time zone.  (RJ)
-
-3/18/97 (feature change) Declaration of objv in Tcl_ObjCmdProc function
-changed from "Tcl_Obj *objv[]" to "Tcl_Obj *CONST objv[]".  All Tcl object
-commands changed to use new declaration of objv.  Naive translation of
-string-based command procs to object-based command procs could very easily
-have yielded code where the contents of the objv array were changed.  This
-is not a problem with string-based command procs, but doing something as
-simple as objv[2] = objv[3] would corrupt the runtime stack and cause Tcl to
-crash.  Introduced CONST in declaration of objv so that attempted assignment
-of new pointer values to elements of the objv array will be caught by the
-compiler. (CCS)
-*** POTENTIAL INCOMPATIBILITY with Tcl 8.0a2 ***
-
-3/19/97 (bug fix) Fixed panic due to object sharing. The root cause was
-that old code was using Tcl_ResetResult instead of Tcl_ResetObjResult. (JL)
-
-3/20/97 (new feature) Added a new subcommand for the file
-command. file attributes filename can give a list of platform-specific
-options (such as file/creator type on the Mac, permissions on Unix) or
-set the values of them. Added a new subcommand for the file
-command. file nativename name gives back the platform-specific form
-for the file. This is useful when the filename is needed to pass to
-the OS, such as exec under Windows 95 or AppleScript on the Mac. For
-more info, see file.n. (SRP)
-
-3/24/97 (removed feature) Removed the tcl_safePolicyPath procedure. Now
-the policy path is computed from the auto_path by appending the directory
-'policies' to each element. Also fixed several bugs in automatic tracking
-of auto_path by computed policy path. (JL)
-*** POTENTIAL INCOMPATIBILITY with Tcl 8.0a2 but not with Tcl 7.6 ***
-
-4/8/97 (new feature) If the variable whose name is passed to lappend doesn't
-already exist, and there are no value arguments, lappend now creates the
-variable with an empty value instead of returning an error. Change suggested
-by Tom Tromey. (BL)
-
-4/9/97 (feature change) Changed the name of the TCL_PART1_NOT_PARSED flag to
-TCL_PARSE_PART1. (BL)
-*** POTENTIAL INCOMPATIBILITY with Tcl 8.0a2 but not with Tcl 7.6 ***
-
-4/10/97 (bug fixes) Fixed various compilation-related bugs:
-    - "UpdateStringOfCmdName should never be invoked" panic.
-    - Bad code generated for expressions not in {}'s inside catch commands.
-    - Segmentation fault in some command procedures when two argument
-      object pointers refer to the same object.
-    - Second level of substitutions were never done for expressions not
-      in {}'s that consist of a single variable reference: e.g.,
-      "set x 27; set bool {$x}; if $bool {puts foo}" would fail with error.
-    - Bad code generated when code storage was grown while compiling some
-      expressions: ones with compilation errors or consisting of only a
-      variable reference.
-    - Bugs involving multiple interpreters: wasn't checking that a
-      procedure's code was compiled for the same interpreter as the one
-      executing it, and didn't invalidate code on hidden-exposed command
-      transitions.
-    - "Bad stack top" panic when executing scripts that require a huge
-      amount of stack space.
-    - Incorrect sharing of code for procedure bodies, and procedure code
-      deallocated before last execution of the procedure finished.
-    - Fixed compilation of expression words in quotes. For example,
-      if "0 < 3" {puts foo}.
-    - Fixed performance bug in array set command with large assignments.
-    - Tcl_SetObjLength segmentation fault setting length of empty object.
-    - If Tcl_SetObjectResult was passed the same object as the interpreter's
-      result object, it freed the object instead of doing nothing. Bug fix
-      by Michael J. McLennan.
-    - Tcl_ListObjAppendList inserted elements from the wrong list. Bug fix
-      by Michael J. McLennan.
-    - Segmentation fault if empty variable list was specified in a foreach
-      command. Bug fix by Jan Nijtmans.
-    - NULL command name was always passed to Tcl_CreateTrace callback
-      procedure.
-    - Wrong string representation generated for the value LONG_MIN.
-      For example, expr 1<<31 printed incorrectly on a 32 bit machine.
-    - "set {a($x)} 1" stored value in wrong variable.
-    - Tcl_GetBooleanFromObj was not checking for garbage after a numeric
-      value.
-    - Garbled "bad operand type" error message when evaluating expressions
-      not surrounded by {}'s. (BL)
-
-4/16/97 (new feature) The expr command now has the "rand()" and
-"srand()" functions for getting random numbers in expr. (RJ)
-
-4/23/97 (bug fix) Fixed core dump in bgerror when the error handler command
-deletes the current interpreter. Found by Juergen Schoenwald. (JL)
-
-4/23/97 (feature change) The notifier interfaces have been redesigned
-to make embedding in applications with external event loops possible.
-A number of interfaces in the notifier and the channel drivers have
-changed.  Refer to the Notifier.3 and CrtChannel.3 manual entries for
-more details. (SS)
-*** POTENTIAL INCOMPATIBILITY ***
-
-4/23/97 (removed feature) The Tcl_File interfaces have been removed.
-The Tcl_CreateFileHandler/Tcl_DeleteFileHandler interfaces now take
-Unix fd's and are only supported on the Unix platform.
-Tcl_GetChannelFile has been replaced with Tcl_GetChannelHandle.
-Tcl_MakeFileChannel now takes a platform specific file handle. (SS)
-*** POTENTIAL INCOMPATIBILITY ***
-
-4/23/97 (removed feature) The modal timeout interface has been
-removed (Tcl_CreateModalTimeout/Tcl_DeleteModalTimeout) (SS)
-*** POTENTIAL INCOMPATIBILITY ***
-
-4/23/97 (feature change) Channel drivers are now required to correctly
-implement blocking behavior when they are in blocking mode. (SS)
-*** POTENTIAL INCOMPATIBILITY ***
-
-4/23/97 (new feature) Added the "binary" command for manipulating
-binary strings. Also, changed the "puts", "gets", and "read" commands
-to preserve embedded nulls.  (SS)
-
-4/23/97 (new feature) Added tcl_platform(byteOrder) element to the
-tcl_platform array to identify the native byte order for the current
-host. (SS)
-
-4/23/97 (bug fix) Fixed bug in date parsing around year boundaries. (SS)
-
-4/24/97 (bug fix) In the process of copying a file owned by another user,
-Tcl was changing the owner of the copy back to the owner of the original
-file, therefore causing further file operations to fail because the current
-user didn't own the copy anymore.  The owner of the copy is now left as the
-current user. (CCS)
-
-4/24/97 (feature change) Under Windows, don't automatically uppercase the
-environment variable "windir" -- it's supposed to be lower case.  (CCS)
-
-4/29/97 (new feature) Added namespace support based on a namespace
-implementation by Michael J. McLennan of Lucent Technologies. A namespace
-encapsulates a collection of commands and variables to ensure that they
-won't interfere the commands and variables of other namespaces. The global
-namespace holds all global variables and commands. Additional namespaces are
-created with the new namespace command. The new variable command lets you
-create Tcl variables inside a namespace. The names of Tcl variables and
-commands may now be qualified by the name of the namespace containing them.
-The key namespace-related commands are summarized below:
-    - namespace ?eval? name arg ?arg...?
-         Used to define the commands and variables in a namespace.
-         Optionally creates the namespace.
-    - namespace export ?-clear? ?pattern pattern...?
-         Specifies which commands are exported from a namespace. These
-         are the ones that can be imported into another namespace.
-    - namespace import ?-force? ?pattern pattern...?
-         Makes the specified commands accessible in the current namespace.
-    - namespace current
-         Returns the name of the current namespace.
-    - variable name ?value? ?name ?value?...?
-         Creates one or more namespace variables. (BTL)
-
-5/1/97 (bug fix) Under Windows, file times were reported in GMT.  Should be
-reported in local time. (CCS)
-
-5/2/97 (feature change) Changed the name of the two Tcl variables used for
-tracing bytecode compilation and execution to tcl_traceCompile and
-tcl_traceExec respectively. These variables are now documented in the
-tclvars man page. (BL)
-
-5/5/97 (new feature) Support "end" as the index for "lsort -index". (BW)
-
-5/5/97 (bug fixes) Cleaned up the way the http package resets connections (BW)
-
-5/8/97 (feature change) Newly created Tcl objects now have a reference count
-of zero instead of one. This simplifies C code that stores newly created
-objects in Tcl variables or in data structures such as list objects. That C
-code must increment the new object's reference count since the variable or
-data structure will contain a long-term reference to the object. Formerly,
-when new objects started out with reference count one, it was necessary to
-decrement the new object's reference count after the store to make sure it
-was left with the correct value; this is no longer necessary. (BL)
-
-5/9/97 (new feature) Added the Tcl_GetsObj interface that takes an
-object reference instead of a dynamic string (as in Tcl_Gets). (SS)
-
-5/12/97 (new feature) Added Tcl_CreateAliasObj and Tcl_GetAliasObj C APIs
-to allow an alias command to be created with a vector of Tcl_Obj structures
-and to get the vector back later. (JL)
-
-5/12/97 (feature change) Changed Tcl_ExposeCommand and Tcl_HideCommand to
-leave an object result instead of a string result. (JL)
-
-5/14/97 (feature change) Improved the handling of the interpreter result.
-This is still either an object or a string, but the two values are now kept
-consistent unless some C code reads or writes interp->result directly. See
-the SetResult man page for details. Removed the Tcl_ResetObjResult
-procedure. (BL)
-*** POTENTIAL INCOMPATIBILITY with Tcl 8.0a2 ***
-
-5/16/97 (new feature) Added "fcopy" command to move data between
-channels.  Refer to the manual page for more information.  Removed the
-"unsupported0" command since it is obsolete now.  (SS)
-
-5/16/97 (new feature) Added Tcl_GetStringResult procedure to allow programs
-to get an interpreter's result as a string. If the result was previously set
-to an object, this procedure will convert the object to a string. Use of
-Tcl_GetStringResult is intended to replace direct access to interp->result,
-which is not safe. (BL)
-
-5/20/97 (new features) Fixed "fcopy" to return the number of bytes
-transferred in the blocking case.  Updated the http package to use
-fcopy instead of unsupported0.  Added -timeout and -handler options to
-http_get.  http_get is now blocking by default.  It is only non-blocking
-if you supply a -command argument. (BW)
-
-5/22/97 (bug fix) Fixed several bugs in the "lsort" command having to do
-with the -dictionary option and the presence of numbers embedded in the
-strings.  (JO)
-
------------------ Released 8.0b1, 5/27/97 -----------------------
-
-6/2/97 (bug fix) Fixed bug in startup code that caused a problem in
-finding the library files when they are installed in a directory
-containing a space in the name. (SS)
-
-6/2/97 (bug fix) Fixed bug in Unix notifier where the select mask was
-not being cleared under some circumstances. (SS)
-
-6/4/97 (bug fix) Fixed bug that prevented creation of Tk widgets in
-namespaces. Tcl_CreateObjCommand and Tcl_CreateCommand now always create
-commands in the global namespace unless the command names are qualified. Tcl
-procedures continue to be created in the current namespace by default. (BL)
-
-6/6/97 (new features) Added new namespace API procedures
-Tcl_AppendExportList and Tcl_Export to allow C code to get and set a
-namespace's export list. (BL)
-
-6/11/97 (new feature) Added Tcl_ConcatObj. This object-based routine
-parallels the string-based routine Tcl_Concat. (SRP)
-
-6/11/97 (new feature) Added Tcl_SetObjErrorCode. This object-based
-routines parallels the string-based routine Tcl_SetErrorCode. (SRP)
-
-6/12/97 (bug fix) Fix the "unknown" procedure so that wish under Windows
-will exec an external program, instead of always complaining "console1 not
-opened for writing". (CCS)
-
-6/12/97 (bug fix) Fixed core dump experienced by the following simple
-script:
-	interp create x
-	x alias exec exec
-	interp delete x
-This panic was caused by not installing the new CmdDeleteProc when exec
-got redefined by the alias creation step. Reported by Lindsay Marshal (JL)
-
-6/13/97 (new features) Tcl objects newly created by Tcl_NewObj now have a
-string representation that points to a shared heap string of length 1. (They
-used to have NULL bytes and typePtr fields. This was treated as a special
-case to indicate an empty string, but made type manager implementations
-complex and error prone.) The new procedure Tcl_InvalidateStringRep is used
-to mark an object's string representation invalid and to free any storage
-associated with the old string representation. (BL)
-*** POTENTIAL INCOMPATIBILITY with Tcl 8.0b1, but not with Tcl7.6 ***
-
-6/16/97 (bug fix) Tcl_ScanCountedElement could leave braces unmatched
-if the string ended with a backslash. (JO)
-
-6/17/97 (bug fix) Fixed channel event bug where readable events would be
-lost during recursive events loops if the input buffers contained
-data. (SS)
-
-6/17/97 (bug fix) Fixed bug in Windows socket code that didn't
-reenable read events in the case where an external entity is also
-reading from the socket. (SS)
-
-6/18/97 (bug fix) Changed initial setting of the notifier service mode
-to TCL_SERVICE_NONE to avoid unexpected event handling during
-initialization. (SS)
-
-6/19/97 (bug fix/feature change) The command callback to fcopy is now
-called in case of errors during the background copy.  This adds a second,
-optional argument to the callback that is the error string.  The callback
-in case of errors is required for proper cleanup by the user of fcopy. (BW)
-*** POTENTIAL INCOMPATIBILITY with Tcl 8.0b1, but not with Tcl 7.6 ***
-
-6/19/97 (bug fix) Fixed a panic due to the following four line script:
-	interp create x
-	x alias foo bar
-	x eval rename foo blotz
-	x alias foo {}
-The problem was that the interp code was not using the actual current name
-of the command to be deleted as a result of un-aliasing foo. (JL)
-
-6/19/97 (feature change) Pass interp down to the ChannelOption and
-driver specific calls so system errors can be differentiated from syntax
-ones. Changed Tcl_DriverGetOptionProc type. Affects Tcl_GetChannelOption,
-TcpGetOptionProc,  TtyGetOptionProc, etc. (DL)
-*** POTENTIAL INCOMPATIBILITY ***
-
-6/19/97 (new feature) Added Tcl_BadChannelOption for use by by driver
-specific option procedures (Set and Get) to return a complete and
-meaningful error message. (DL)
-
-6/19/97 (bug fixes) If a system call error occurs while doing an
-fconfigure on tcp or tty/com channel: return the appropriate error
-message (instead of the syntax error one or none). (Fixed for Unix and
-most of the Win and Mac drivers). (DL)
-
-6/20/97 (feature change) Eval is no longer assumed as the subcommand name
-in namespace commands: you must now write "namespace eval nsName {...}".
-Abbreviations of namespace subcommand names are now allowed. (BL)
-*** POTENTIAL INCOMPATIBILITY with Tcl 8.0b1, but not with Tcl7.6 ***
-
-6/20/97 (feature change) Changed the errorInfo traceback message for
-compilation errors from "invoked from within" to "while compiling". (BL)
-
-6/20/97 (bug fixes) Fixed various compilation-related bugs:
-    - "UpdateStringOfCmdName should never be called" and
-      "UpdateStringOfByteCode should never be called" panics.
-    - Segfault in TclObjInterpProc getting procedure name after evaluation
-      stack is reallocated (grown).
-    - Could not use ":" at end of variable and command names.
-    - Bad code generated for while and for commands with test expressions
-      enclosed in quotes: e.g., "set i 0; while "$i > 5" {}".
-    - Command trace procedures would crash if they did a Tcl_EvalObj that
-      reallocated the evaluation stack.
-    - Break and continue commands did not reset the interpreter result.
-    - The Tcl_ExprXXX routines, both string- or object-based, always
-      modified the interpreter result even if there was no error.
-    - The argument parsing procedure used by several compile procedures
-      always treated "]" as end of a command: e.g., "set a ]" would fail.
-    - Changed errorInfo traceback message for compilation errors from
-      "invoked from within" to "while compiling".
-    - Problem initializing Tcl object managers during interpreter creation.
-    - Added check and error message if formal parameter to a procedure is
-      an array element. (BL)
-
-6/23/97 (new feature) Added "registry" package to allow manipulation
-of the Windows system registry.  See manual entry for details. (SS)
-
-6/24/97 (feature change) Converted http to a package and added the
-http1.0 subdirectory of the Tcl script library.  This means you have
-to do a "package require http" to use this, as advertised in the man page. (BW)
-*** POTENTIAL INCOMPATIBILITY with Tcl 8.0b1, but not with Tcl 7.6 ***
-
-6/24/97 (bug fix) Ensure that Tcl_Set/GetVar C APIs, when called without
-TCL_LEAVE_ERR_MSG, don't touch the interp result. (DL)
-
-6/26/97 (feature change) Changed name of Tcl_ExprStringObj to
-Tcl_ExprObj. (BL)
-*** POTENTIAL INCOMPATIBILITY with Tcl 8.0b1, but not with Tcl 7.6 ***
-
------------------ Released 8.0b2, 6/30/97 -----------------------
-
-7/1/97 (new feature) TCL_BUILD_SHARED flag set in tclConfig.sh
-when Tcl has been built with --enable-shared. A new tclLibObjs
-make target, echoing the list of the .o's needed to build a tcl
-library, is now provided. (DL)
-
-7/1/97 (feature change) compat/getcwd.c removed and changed the
-only place where getcwd is used so a new USEGETWD flag selects
-the use of the replacement "getwd". Adding this flag is recommended
-for SunOS 4 (because getcwd on SunOS 4 uses a pipe to pwd(1)!). (DL)
-
-7/7/97 (feature change) The split command now supports binary data (i.e.,
-null characters in strings). (BL)
-
-7/7/97 (bug fix) string first returned the wrong result if the first
-argument string was empty. (BL)
-
-7/8/97 (bug fix) Fixed core dump in fcopy that could occur when a command
-callback was supplied and an error or eof condition caused no background
-activity.  A refcount bug triggered a panic in Tcl_ListObjAppendElement. (BW)
-
-7/8/97 (bug fix) Relaxed the pattern matching on http_get so you do not
-need a trailing path component.  You can now get away with just
-http_get www.scriptics.com					(BW)
-
-7/9/97 (bug fix) Creating anonymous interpreters no longer smashes existing
-commands with names similar to the generated name. Previously creating an
-anonymous interpreter could smash an existing command, now it skips until
-it finds a command name that isn't being used. (JL)
-
-7/9/97 (feature change) Removed the policy management mechanism from the
-Safe Base; left the aliases to source and load modules, and to do a limited
-form of the "file" command. See entry of 11/15/96. (JL)
-
-7/9/97 (bug fixes) Fixed various compilation-related bugs:
-    - Line numbers in errorInfo now are the same as those in Tcl7.6 unless
-there are compilation errors. Compilation error messages now include the
-entire command in error.
-    - Trailing ::s after namespace names weren't being ignored.
-    - Could not refer to an namespace variable with an empty name using a
-name of the form "n::". (BL)
-
-7/9/97 (bug fix) Fixed bug in Tcl_Export that prevented you from exporting
-from other than the current namespace. (BL)
-
-7/9/97 (bug fix) env.test was removing env var needed for proper finding
-of libraries in child process. (DL)
-
-7/10/97 (bug fixes/new feature) Cleanup in Tcl_MakeSafe. Less information
-is leaked to safe interps. Error message fixes for interp sub commands.
-Likewise changes in safealias.tcl; tcl_safeCreateInterp can now be called
-without argument to generate the slave name (like in interp create). (DL)
-
-7/10/97 (bug fixes) Bytecode compiler now generates more detailed
-command location information: subcommands as well as commands now have
-location information. This means command trace procedures now get the
-correct source string for each command in their command parameter. (BL)
-
-7/22/97 (bug fixes) Performance improvement in Safe interpreters
-handling. Added new mask value to (tclInt.h) Interp.flags record. (DL)
-
-7/22/97 (bug fix) Fixed panic in 'interp target {} foo'. This bug
-was present since Tcl 7.6. (JL)
-
-7/22/97 (bug fix) Fixed bug in compilation of procedures in namespaces: the
-procedure's namespace must be used to look up compile procedures, not the
-current namespace. (BL)
-
-7/22/97 (bug fix) Use of the -channel option of http_get was not setting
-the end of line translations mode on the channel, so copying binary data
-with the -channel option was corrupting the result on non-unix platforms. (BW)
-
-7/22/97 (bug fixes) file commands and ~user (seg fault and other
-improper returns). (DL)
-
-7/23/97 (feature change) Reenabled "vwait" in Safe Base. (JL)
-
-7/23/97 (bug fixes) Fixed two bugs involving read traces on array variables
-in procedures: trace procedures were sometimes not called, and reading
-nonexistant array elements didn't create undefined element variables that
-could later be defined by trace procedures. (BL)
-
-7/24/97 (bug fix) Windows memory allocation performance was
-superlinear in some cases.  Made the Mac allocator generic and changed
-both the Mac and Windows platforms to use the new allocator instead of
-malloc and free. (SS)
-
-7/24/97 - 8/12/97 (bug fixes/change of features) Completely revamped safe
-sourcing/loading (see safe.n) to hide pathnames, use virtual
-paths tokens instead, improved security in several respects and made it
-more tunable. Multi level interp loading can work too now. Package auto
-loading now works in safe interps as long as the package directory is in
-the auto_path (no deep crawling allowed in safe interps). (DL)
-*** POTENTIAL INCOMPATIBILITY with previous alpha and beta releases ***
-
-7/24/97 (bug fixes) Made Tcl_SetVar* and Tcl_NewString* treat a NULL value
-as an empty string. (This fixes hairy crash case where you would crash
-because load command for other interps assumed presence of
-errorInfo...). (DL)
-
-7/28/97 (bug fix) Fixed pkg_mkIndex to understand namespaces.  It will
-use the export list of a namespace and create auto_index entries for
-all export commands.  Those names are in their fully qualified form in the
-auto_index.  Therefore, I tweaked unknown to try both $cmd and ::$cmd.
-Also fixed pkg_mkIndex so you can have "package require" commands inside
-your packages.  These commands are ignored, which is mostly ok except
-when you must load another package before loading yours because of
-linking dependencies. (BW)
-
-7/28/97 (bug fix) A variable created by the variable command now persists
-until the namespace is destroyed or the variable is unset. This is true even
-if the variable has not been initialized; these variables used to be
-destroyed if an error occurred when accessing them. In addition, the "info
-vars" command lists uninitialized namespace variables, while the "info
-exists" command returns 0 for them. (BL)
-
-7/29/97 (feature change)  Changed the http package to use the ::http
-namespace. http_get renamed to http::geturl, http_config renamed to
-http::config, http_formatQuery renamed to http::formatQuery.
-It now provides the 2.0 version of the package.
-The 1.0 version is still available with the old names.
-*** POTENTIAL INCOMPATIBILITY with Tcl 8.0b2 but not with Tcl 7.6 ***
-
-7/29/97 (bug fix, new feature) Tcl_Main now uses Tcl objects internally to
-preserve NULLs in commands and command output. Added new API procedure
-Tcl_RecordAndEvalObj that resembles Tcl_RecordAndEval but takes an object
-containing a command. (BL)
-
-7/30/97 (bug fix) Tcl freed strings in the environ array even if it
-did not allocate them. (SS)
-
-7/30/97 (bug fix) If a procedure is renamed into a different namespace, it
-now executes in the context of that namespace. (BL)
-
-7/30/97 (bug fix) Prevent renaming of commands into and from namespaces as
-part of hiding them. (JL)
-
-7/31/97 (feature change) Moved the history command from C to tcl.
-This uses the ::history namespace.  The "words" and "substitute" options
-are no longer supported.  In addition, the "keep" option without a value
-returns the current keep limit.  There is a new "clear" option.
-The unknown command now supports !! again. (BW)
-*** POTENTIAL INCOMPATIBILTY  ***
-
-7/30/97 (bug fix) Made sure that a slave can not fool the master into
-hiding the wrong command. Made sure we don't crash in hiding + namespaces
-issues. (DL)
-
-8/4/97 (bug fix) Concat, eval, uplevel, and similar commands were
-incorrectly trimming trailing space characters from their arguments
-even when the space characters were preceded by a backslash. (JO)
-
-8/4/97 (bug fix) Removed the hard link between bgerror and tkerror.
-Only bgerror is supported in tcl core. Tk will still look for a
-tkerror but using regular tcl code for that feature. (DL)
-*** POTENTIAL INCOMPATIBILTY with code relying on the hard link ***
-
-8/6/97 (bug fix) Reduced size required for compiled bytecodes by using a
-more compact encoding for the command pc-to-source map. (BL)
-
-8/6/97 (new feature) Added support for additional compilation and execution
-statistics when Tcl is compiled with the TCL_COMPILE_STATS flag. (BL)
-
-8/7/97 (bug fix) Expressions not in {}s that have a comparison operator as
-the topmost operator must be compiled out-of-line (call the expr cmd at
-runtime) to properly support expr's two-level substitution semantics. An
-example is "set a 2; set b {$a}; puts [expr $b == 2]". (BL)
-
-8/11/97 (bug fix) The catch command would sometimes crash if a variable name
-was given and the bytecode evaluation stack was grown when executing the
-argument script. (BL)
-
-8/12/97 (feature change) Reinstated the variable tcl_precision to control
-the number of digits used when floating-point values are converted to
-strings, with default of 12 digits.  However, had to make tcl_precision
-shared among all interpreters (except that safe interpreters can't
-modify it).  This makes the Tcl 8.0 behavior almost identical to 7.6
-except that the default precision is 12 instead of 6. (JO)
-*** POTENTIAL INCOMPATIBILITY ***
-
------------------ Released 8.0, 8/18/97 -----------------------
-
-8/19/97 (bug fix) Minimal fix for glob -nocomplain bugs:
-"glob -nocomplain unreadableDir/*" was generating an anonymous
-error. More in depth fixes will come with 8.1. (DL).
-
-8/20/97 (bug fix) Removed check for FLT_MIN in binary command so
-underflow conditions are handled by the compiler automatic
-conversions. (SS)
-
-8/20/97 (bug fixes) Fixed several compilation-related bugs:
-    - Array cmd wasn't detecting arrays that, while compiled, do not yet
-      exist (e.g., are marked undefined since they haven't been assigned
-      to yet).
-    - The GetToken procedure in tclCompExpr.c wasn't recognizing properly
-      whether an integer token was invalid. For example, "0x$" is not
-      a valid integer.
-    - Performance bug in TclExecuteByteCode: the size of its stack frame
-      was reduced by over 20% by moving errorInfo code elsewhere.
-    - Uninitialized memory read error in tclCompile.c. (BL)
-
-8/21/97 (bug fix) safe::interpConfigure now behave like Tk widget's
-configure : it changes only the options you provide and you can get
-the current value of any single option. New ?-nested boolean? and
-?-statics boolean? for all safe::interp* commands but we still
-accept (upward compatibility) the previously defined non valued
-flags ?-noStatics? and ?-nestedLoadOk?. Improved the documentation. (DL).
-
-8/22/97 (bug fix) Updated PrintDbl.3 to reflect the fact that the
-tcl_precision variable is still used and that it is now shared by all
-interpreters. (BL)
-
-8/25/97 (bug fix) Fixed array access bug in IllegalExprOperandType
-procedure in tclExecute.c: it was not properly supporting the || and &&
-operators. (BL)
-
-8/27/97 (bug fix) In cases where a channel handler was created with an
-empty event mask while data was still buffered in the channel, the
-channel code would get stuck spinning on a timer that would starve
-idle handlers.  This mostly happened in Tk when reading from stdin. (SS)
-
-9/4/97 (bug fix) Slave interps now inherit the maximum recursion limit
-of their parent instead of starting back at the default. {nb: this still
-does not prevent stack overflow by multi-interps recursion or aliasing} (DL)
-
-9/11/97 (bug fix) An uninitialized variable in Tcl_WaitPid caused
-pipes to fail to report eof properly under Windows. (SS)
-
-9/12/97 (bug fix) "exec" was misidentifying some DOS executables as not
-executable. (CCS)
-
-9/14/97 (bug fix) Was using the wrong structure in sizeof operation in
-tclUnixChan.c. (JL)
-
-9/15/97 (bug fix) Fixed notifier to break out of do-one-event loop if
-Tcl_WaitForEvent returns 1, so that callers of Tcl_DoOneEvent will get
-a chance to check whether the event just handled is significant. This
-affected mainly recursive calls to Tcl_VWaitCmd; these did not get a
-chance to notice that the variable they were waiting for has been set
-and thus they didn't terminate the vwait. (JL, DL, SS)
-
-9/15/97 (bug fix) Alignment problems in "binary format" would cause a
-crash on some platforms when formatting floating point numbers. (SS)
-
-9/15/97 (bug fix) Fixed bug in Macintosh socket code.  Now passes all
-tests in socket.test that are not platform specific. (Thanks to Mark
-Roseman for the pointer on the fix.)  (RJ)
-
-9/18/97 (bug fix) Fixed bug -dictionary option of lsort that could
-cause the compare function to run off the end of an array if the
-number only contained 0's. (Thanks to Greg Couch for the report.) (RJ)
-
-9/18/97 (bug fix) TclFinalizeEnvironment was not cleaning up
-properly. (DL, JI)
-
-9/18/97 (bug fix) Fixed long-standing bug where an "array get" command
-did not trigger traces on the array or its elements. (BL)
-
-9/18/97 (bug fixes) Fixed compilation-related bugs:
-    - Fixed errorInfo traceback information for toplevel coomands that
-      contain nested commands.
-    - In the expr command, && and || now accept boolean operands as well
-      as numeric ones. (BL)
-
-9/22/97 (bug fix) Fixed bug that prevented translation modes from being
-set independently for input and output on sockets if input was "auto". (JL)
-
-9/24/97 (bug fix) Tcl_EvalFile(3) and thus source(n) now works fine on
-files containing NUL chars. (DL)
-
-9/26/97 (bug fix) Fixed use of uninitialized memory in the environ array
-that later could cause random core dumps. Applies to all platforms. (JL)
-
-9/26/97 (bug fix) Fixed use of uninitialized memory in socket address data
-structure under some circumstances. This could cause random core dumps.
-This applies only to Unix. (JL)
-
-9/26/97 (bug fix) Opening files on PC-NFS volumes would cause a hang
-until the system timed after the file was closed. (SS)
-
-10/6/97 (bug fix) The join(n) command, though objectified, was loosing
-NULs in the joinString and in list elements after the 2nd one.
-Now you can "join $list \0" for instance. (DL)
-
-10/9/97 (bug fix) Under windows, if env(TMP) or env(TEMP) referred to a
-non-existent directory, exec would fail when trying to create its temporary
-files. (CCS)
-
-10/9/97 (bug fix) Under mac and windows, "info hostname" would crash if
-sockets were installed but the hostname could not be determined anyhow.
-Tcl_GetHostName() was returning NULL when it should have been returning
-an empty string. (CCS)
-
-10/10/97 (bug fix) "file attribute /" returned error on windows. (CCS)
-
-10/10/97 (bug fix) Fixed the auto_load procedure to handle procedures
-defined in namespaces better.  Also fixed pgk_mkIndex so it sees procedures
-defined in nested namespaces.  Index entries are still only made for
-exported procedures. (BW)
-
-10/13/97 (bug fix) On unix, for files with unknown group or owner
-attributes, querying the "file attributes" would return an error rather than
-returning the group's or owner's id number, although tha command accepts
-numbers when setting the file's group or owner.  (CCS)
-
-10/22/97 (bug fix) "fcopy" did not eval the callback script at the
-global scope. (SS)
-
-10/22/97 (bug fix) Fixed the signature of the CopyDone callback used in
-the http package(s) so they can handle error cases properly. (BW)
-
-10/28/97 (bug fixes) Fixed a problem where lappend would free the Tcl object
-in a variable if a Tcl_ObjSetVar2 failed because of an error calling a trace
-on the variable. (BL)
-
-10/28/97 (bug fix) Changed binary scan to properly handle sign
-extension of integers on 64-bit or larger machines. (SS)
-
-11/3/97 (bug fixes) Fixed several bugs:
-    - expressions such as "expr ($x)" must be compiled out-of-line
-      (call the expr command procedure at runtime) to ensure the correct
-      behavior when "$x" is an expression such as "5+10".
-    - "array set a {}" now creates a new array var with an empty array
-      value if the var didn't already exist.
-    - "lreplace $foo end end" no longer returns an error (just an empty
-      list) if foo is empty.
-    - upvar will no longer create a variable in a namespace that refers
-      to a variable in a procedure.
-    - deleting a command trace within a command trace callback would
-      make the code that calls traces to reference freed memory.
-    - significantly sped up "string first" and "string last" (fix from
-      darrel@gemstone.com).
-    - seg fault in Tcl_NewStringObj() when a NULL is passed as the byte
-      pointer argument and Tcl is compiled with -DTCL_MEM_DEBUG.
-    - documentation and error msg fixes. (BL)
-
-11/3/97 (bug fix) Fixed a number of I/O bugs related to word sizes on
-64-bit machines. (SS)
-
-11/6/97 (bug fix) The exit code of the first process created by Tcl
-on Windows was not properly reported due to an initialization
-problem. (SS)
-
------------------ Released 8.0p1, 11/7/97 -----------------------
-
-11/19/97 (bug fix) Fixed bug in linsert where it sometimes accidently
-cleared out a shared argument list object. (BL).
-
-11/19/97 (bug fix) Autoloading in namespaces was not working properly.
-auto_mkindex is still not really namespace aware but most common
-cases should now be handled properly (see init.test). (BW, DL)
-
-11/20/97 (enhancement) Made the changes required by the new Apple
-Universal Headers V.3.0, so that Tcl will compile with CW Pro 2.
-
-11/24/97 (bug fix) Fixed tests in clock test suite that needed the
--gmt flag set.  Thanks to Jan Nijtmans for reporting the problem. (RJ)
-
------------------ Released 8.0p2, 11/25/97 -----------------------
-
-12/3/97 (bug fix/optimization) Removed uneeded and potentially dangerous
-instances of double evaluations if "if" and "expr" statements from
-the library files. It is recommended that unless you need a double
-evaluation you always use "expr {...}" instead of "expr ..." and
-"if {...} ..." instead of "if ... ...". It will also be faster
-thanks to the byte compiler. (DL)
-
----- Shipped as part of the plugin2.0b5 as 8.0p2Plugin1, Dec 8th 97 ----
-
-12/8/97 (bug fix) Need to protect the newly accepted channel in an
-accept callback on a socket, otherwise the callback may close it and
-cause an error, which would cause the C code to attempt to close the
-now deleted channel. Bumping the refcount assures that the channel sticks
-around to be really closed in this case. (JL)
-
-12/8/97 (bug fix) Need to protect the channel in a fileevent so that it
-is not deleted before the fileevent handler returns. (CS, JL)
-
-12/18/97 (bug fix) In the opt argument parsing package: if the description
-had only flags, the "too many arguments" case was not detected. The default
-value was not used for the special "args" ending argument. (DL)
-
-1/15/98 (improvement) Moved common part of initScript in common file.
-Moved windows specific initialization to init.tcl so you can initialize
-Tcl in windows without having to call Tcl_Init which is now only
-searching for init.tcl {back ported from 8.1}. (DL)
-
----- Shipped as part of the plugin as 8.0p2Plugin2, Jan 15th 98 ----
-
-5/27/98 (bug fix) Windows socket driver did not notice new data arriving
-on nonblocking sockets until the event loop was entered. (SS)
-
-5/27/98 (bug fix) Windows socket driver used FIONREAD, which is not
-supported correctly by WinSock. (SS)
-
-6/9/98 (bug fix) Generic channel code failed to report readable file
-events on buffered data that was left behind by a gets or read that
-did not consume all available data. (SS)
-
-6/18/98 (bug fix) Compilation of loop expressions was too aggressive
-and incorrectly inlined non-literal expressions. (SS)
-
-6/18/98 (bug fix) "info var" and "info locals" incorrectly reported
-the existence of compiler temporary variables. (SS)
-
-6/18/98 (bug fix) Dictionary sorting used signed character
-comparisons. (SS)
-
-6/18/98 (bug fix) Compile procs corrupted the exception stack in some
-cases. (SS)
-
-6/18/98 (bug fix) Array set had erratic behavior when initializing a
-variable from an empty value list. (SS)
-
-6/18/98 (bug fix) The Windows registry package had a bad bounds check
-that could lead to a crash. (SS)
-
-6/18/98 (bug fix) The foreach compile proc did not correctly handle
-non-local variable references. (SS)
-
-6/25/98 (new features) Added name resolution hooks to support [incr Tcl].
-There are new internal Tcl_*Resolver* APIs to add, query and remove the hooks.
-With this changes it should be possible to dynamically load [incr Tcl]
-as an extension. (MM)
-
-7/1/97 (bug fix) The commands "info args, body, default, procs" did
-not correctly handle imported procedures. (RJ)
-
-7/6/98 (improvement) pkg_mkIndex now implements the "package require"
-command.  This makes it possible to create index files for packages
-that require another package and then execute code from that package in
-their file. Previously, this would throw an error because the required
-package had not been loaded.  The -nopkgrequied flag is provided to
-revert back to the old functionality. (EMS)
-
-7/6/98 (improvement) back-ported the -direct flag from 8.1 into
-pkg_mkIndex.  This results in pkgIndex.tcl files that contain direct
-source or load commands instead of tclPkgSetup commands. (EMS)
-
-7/6/98 (improvement) made changes to the AuxData items structures to support
-storage of compiled scripts on disk. Also some related minor changes in
-the compilation and execution engine. (EMS)
-
-6/4/98 (enhancement) Added new internal routines to support inserting
-and deleting from the stat, access, and open-file-channel mechanisms.
-TclAccessInsertProc, TclStatInsertProc, & TclOpenFileChannelInsertProc
-insert pointers to such routines; TclAccessDeleteProc, TclStatDeleteProc,
-& TclOpenFileChannelDeleteProc delete pointers to such routines.  See
-the file generic/tclIOUtils.c for more details. (SKS)
-
-7/1/98 (enhancement) Added a new internal C variable
-tclPreInitScript.  This is a pointer to a string that may hold an
-initialization script; If this pointer is non-NULL it is evaluated in
-Tcl_Init() prior to the built-in initialization script defined in the
-file generic/tclInitScript.h.  (SKS)
-
-7/6/98 (bug fix) Removed dead code in PlatformInitExitHandler so that
-the TCL_LIBRARY value can be safely patched in binaries. (BW)
-
-7/24/98 (enhancement) Incorporated a new version of auto_mkindex that
-can support the [incr Tcl] class structures.  This version will index
-all procedures in a source file, not just those where "proc" starts
-at the beginning of the line.  If you want the old behavior, use the
-auto_mkindex_old procedure. (MM)
-
-7/24/98 (feature change) Changed the Windows registry key to be
-HKEY_LOCAL_MACHINE\Software\Scriptics\Tcl\8.0, and to store the path
-in the default value instead of "Root".  Also, this key can be
-specified at compile time in case Tcl is being used in a different
-context where it needs an alternate library path from the standard Tcl
-installation. (SS)
-
-7/24/98 (feature change) Changed the search order for init.tcl.  The
-tcl_library variable can now be set before calling Tcl_Init to avoid
-doing any searches.  If it isn't set, then Tcl checks
-env(TCL_LIBRARY), the static value set at compile time, an install
-directory relative to the executable, a source directory relative to
-the executable, and a tcl directory relative to the source heirarchy
-containing the executable.  See the comment at the top of
-generic/tclInitScript.h for more details. (SS)
-
-7/27/98 (config change) Changed the use of the DBGX flag in configure.in
-and the makefile to be TCL_DBGX.  Users of tclConfig.sh may need to pass
-this through their configure files with AC_SUBST. (BW)
-
-729/98 (bug fix) Changed [info body] to return a copy of the body of a
-compiled procedure instead of the body itself, to avoid invalidation
-of the internal rep and loss of the byte-codes. (EMS)
-
-8/5/98 (bug fix) The platform init code could walk off the end of a
-buffer when reading the PkgPath registry value on Windows. (SS)
-
-8/5/98 (Windows makefile change) Introduced a set of macros to deal with
-exporting symbols when compiling DLLS on Windows. See win/README for
-details. (EMS)
-
-8/5/98 (addendum) Added a second Windows registry key under
-HKEY_LOCAL_MACHINE\Software\Scriptics\Tcl\8.0, named "pkgPath".
-This is a multi-string value used to initialize the tcl_pkgPath
-variable. This is required if extension DLLs are in architecture specific
-subdirectories. (SS)
-
-8/6/98 (new feature) Added tcl_findLibrary to init.tcl for use by
-extensions, including Tk.  This searches in a canonical way for
-an extensions library directory and initialization file. (BW)
-
-8/10/98 (bug fix) Imported commands used to get lost if the target
-of the import was redefined.  Tcl_CreateCommand and Tcl_CreateObjCommand
-were updated to restore import links. (Note that if you rename a command,
-the import links move to the new name, and if you delete a command then
-the import links get lost. These semantics have not changed.) (MC)
-
--------- Released 8.0.3 to the Tcl Consortium CD-ROM project, 8/10/98 ------
-
-9/3/98 (bug fix) Tcl_Realloc was failing under Windows because the
-GlobalReAlloc API was not correctly re-allocating blocks that were
-32k+.  The fix was to use newer Win32 APIs (HeapAlloc, HeapFree, and
-HeapReAlloc.) (BS)
-
-10/5/98 (bug fix) Fixed bug in pkg_mkIndex that caused some files that do
-a "package require" of packages in the Tcl libraries to give a warning like
-	warning: "xx.tcl" provides more than one package ({xx 2.0} {yy 0.3})
-and generate a broken pkgIndex.tcl file. (EMS)
-
-10/5/98 (bug fix) Pkg_mkIndex was not doing a case-insensitive comparison
-of extensions to determine whether to load or source a file. Thus, under
-Windows, MYDLLNAME.DLL was sourced, and mydllname.dll loaded. (EMS)
-
-10/5/98 (new feature) Created a new Tcl_Obj type, "procbody". This object's
-internal representation holds a pointer to a Proc structure. Extended
-TclCreateProc to take both strings and "procbody". (EMS)
-
-10/13/98 (bug fix) The "info complete" command can now handle strings
-with NULLs embedded.  Thanks to colin@field.medicine.adelaide.edu.au
-for providing this fix. (RJ)
-
-10/13/98 (bug fix) The "lsort -dictionary" command did not properly
-handle some numbers starting with 0.  Thanks to Richard Hipp
-<drh@acm.org> for submitting the fix to Scriptics. (RJ)
-
-10/13/98 (bug fix) The function Tcl_SetListObj was creating an invalid
-Tcl_Obj if the list had zero elements (despite what the comments said
-it would do).  Thanks to Sebastian Wangnick for reporting the
-problem. (RJ)
-
-10/20/98 (new feature) Added tcl_platform(debug) element to the
-tcl_platform array on Windows platform.  The existence of the debug
-element of the tcl_platform array indicates that the particular Tcl
-shell has been compiled with debug information.  Using
-"info exists tcl_platform(debug)" a Tcl script can direct the
-interpreter to load debug versions of DLLs with the load
-command. (SKS)
-
-10/20/98 (feature change) The Makefile and configure scripts have been
-changed for IRIX to build n32 binaries instead of the old 32 abi
-format.  If you have extensions built with the o32 abi's you will need
-to update them to n32 for them to work with Tcl.  (RJ)
-*** POTENTIAL INCOMPATIBILITY ***
-
-10/23/98 (bug fix) tcl_findLibrary had a stray ] in one of the
-pathnames it searched for the initialization script.  tclInitScript.h
-was incorrectly adding the parent of tcl_library to tcl_pkgPath.  This
-logic was moved into init.tcl, and the initialization of auto_path was
-documented.  Thanks to Donald Porter and Tom Silva for related
-patches. (BW)
-
-10/29/98 (bug fix) Fixed Tcl_NotifyChannel to use Tcl_Preserve instead
-of Tcl_RegisterChannel so that 1) unregistered channels do not get
-closed after their first fileevent, and 2) errors that occur during
-close in a fileevent script are actually reflected by the close
-command. (BW)
-
-10/30/98 (bug fix) Overhaul of pkg_mkIndex to deal with transitive
-package requires and packages split among scripts and binary files.
-Also fixed ommision of global for errorInfo in tcl_findLibrary. (BW)
-
-11/08/98 (bug fix) Fixed the resource command to always detect
-the case where a file is opened a second time with the same
-permissions.  IM claims that this will always cause the same
-FileRef to be returned, but in MacOS 8.1+, this is no longer the case,
-so we have to test for this explicitly. (JI)
-
-11/10/98 (feature change) When compiling with Metrowerk's MSL, use the
-exit function from MSL rather than ExitToShell.  This allows MSL to
-clean up its temporary files. Thanks to Vince Darley for this
-improvement. (JI)
-
------------------ Released 8.0.4, 11/19/98 -------------------------
-
-11/20/98 (bug fix) Handle possible NULL return in TclGetStdFiles. (RJ)
-
-11/20/98 (bug fix) The dltests would not build on SGI.  They reported
-that you could not mix n32 with 032 binaries.  The configure script
-has been modified to get the EXTRA_CFLAGS from the tcl configure
-script.  [Bug id: 840] (RJ)
-
-12/3/98 (bug fix) Windows NT creates sockets so they are inheritable
-by default.  Fixed socket code so it turns off this bit right after
-creation so sockets aren't kept open by exec'ed processes. [Bug: 892]
-Thanks to Kevin Kenny for this fix.  (SS)
-
-1/11/98 (bug fix)  On HP, "info sharedlibextension" was returning
-empty string on static apps.  It now always returns ".sl".  (RJ)
-
-1/28/99 (configure change) Now support -pipe option on gcc.  (RJ)
-
-2/2/99 (bug fix) Fixed initialization problem on Windows where no
-searching for init.tcl would be performed if the registry keys were
-missing.  (stanton)
-
-2/2/99 (bug fix) Added support for HKEY_PERFORMANCE_DATA and
-HKEY_DYN_DATA keys in the "registry" command. (stanton)
-
-2/2/99 (bug fix) ENOTSUP and EOPNOTSUPP clashed on some Linux
-variants. (stanton)
-
-2/2/99 (enhancement) The "open" command has been changed to use the
-object interfaces. (stanton)
-
-2/2/99 (bug fix) In some cases Tcl would crash due to an overflow of
-the exception stack resulting from a missing byte code in some
-expressions. (stanton)
-
-2/2/99 (bug fix) Changed configure so Linux and IRIX shared libraries
-are linked with the system libraries. (stanton)
-
-2/2/99 (bug fix) Added support for BSDI 4.x (BSD/OS-4*) to the
-configure script. (stanton)
-
-2/2/99 (bug fix) Fixed bug where upvar could resurrect a namespace
-variable after the namespace had been deleted. (stanton)
-
-2/2/99 (bug fix) In some cases when creating variables, the
-interpreter result was being modified even if the TCL_LEAVE_ERR_MSG
-flag was set. (stanton)
-
-2/2/99 (bug fix & new feature) Changed the socket drivers to properly
-handle failures during an async socket connection.  Added a new
-fconfigure option "-error" to retrieve the failure message.  See the
-socket.n manual entry for details. (stanton)
-
-2/2/99 (bug fix) Deleting a renamed interp alias could result in a
-panic. (stanton)
-
-2/2/99 (feature change/bug fix) Changed the behavior of "file
-extension" so that it splits at the last period.  Now the extension of
-a file like "foo..o" is ".o" instead of "..o" as in previous versions.
-*** POTENTIAL INCOMPATIBILITY ***
-
------------------ Released 8.0.5, 3/9/99 -------------------------
-
-======== Changes for 8.0 go above this line ========
-======== Changes for 8.1 go below this line ========
-
-6/18/97 (new feature) Tcl now supports international character sets:
-    - All C APIs now accept UTF-8 strings instead of iso8859-1 strings,
-      wherever you see "char *", unless explicitly noted otherwise.
-    - All Tcl strings represented in UTF-8, which is a convenient
-      multi-byte encoding of Unicode.  Variable names, procedure names,
-      and all other values in Tcl may include arbitrary Unicode characters.
-      For example, the Tcl command "string length" returns how many
-      Unicode characters are in the argument string.
-    - For Java compatibility, embedded null bytes in C strings are
-      represented as \xC080 in UTF-8 strings, but the null byte at the end
-      of a UTF-8 string remains \0.  Thus Tcl strings once again do not
-      contain null bytes, except for termination bytes.
-    - For Java compatibility, "\uXXXX" is used in Tcl to enter a Unicode
-      character.  "\u0000" through "\uffff" are acceptable Unicode
-      characters.
-    - "\xXX" is used to enter a small Unicode character (between 0 and 255)
-      in Tcl.
-    - Tcl automatically translates between UTF-8 and the normal encoding for
-      the platform during interactions with the system.
-    - The fconfigure command now supports a -encoding option for specifying
-      the encoding of an open file or socket.  Tcl will automatically
-      translate between the specified encoding and UTF-8 during I/O.
-      See the directory library/encoding to find out what encodings are
-      supported (eventually there will be an "encoding" command that
-      makes this information more accessible).
-    - There are several new C APIs that support UTF-8 and various encodings.
-      See Utf.3 for procedures that translate between Unicode and UTF-8
-      and manipulate UTF-8 strings. See Encoding.3 for procedures that
-      create new encodings and translate between encodings.  See
-      ToUpper.3 for procedures that perform case conversions on UTF-8
-      strings.
-
-9/18/97 (enhancement) Literal objects are now shared by the ByteCode
-structures created when compiled different scripts. This saves up to 45%
-of the total memory needed for all literals. (BL)
-
-9/24/97 (bug fixes) Fixed Tcl_ParseCommand parsing of backslash-newline
-sequences at start of command words. Suppressed Tcl_EvalDirect error logging
-if non-TCL_OK result wasn't an error. (BL)
-
-10/17/97 (feature enhancement) "~username" now refers to the users' home
-directory on Windows (previously always returned failure). (CCS)
-
-10/20/97 (implementation change) The Tcl parser has been completely rewritten
-to make it more modular.  It can now be used to parse a script without actually
-executing it.  The APIs for the new parser are not correctly exported, but
-they will eventually be exported and augmented with Tcl commands so that
-Tcl scripts can parse other Tcl scripts. (JO)
-
-10/21/97 (API change) Added "flags" argument to Tcl_EvalObj, removed
-Tcl_GlobalEvalObj procedure.  Added new procedures Tcl_Eval2 and
-Tcl_EvalObjv. (JO)
-*** POTENTIAL INCOMPATIBILITY ***
-
-10/22/97 (API change) Renamed Tcl_ObjSetVar2 and Tcl_ObjGetVar2 to
-Tcl_SetObjVar2 and Tcl_GetObjVar2 (for consistency with other C APIs)
-and changed the name arguments to be strings instead of objects.  (JO)
-*** POTENTIAL INCOMPATIBILITY ***
-
-10/27/97 (enhancement) Bytecode compiler rewritten to use the new Tcl
-parser. (BL)
-
-11/3/97 (New routines) Added Tcl_AppendObjToObj, which appends the
-string rep of one Tcl_Obj to another. Added Tcl_GetIndexFromObjStruct,
-which is similar to Tcl_GetIndexFromObj, except that you can give an
-offset between strings. This allows Tcl_GetIndexFromObjStruct to be
-called with a table of records which have strings in them. (SRP)
-
-12/4/97 (enhancement) New Tcl expression parser added. Added new procedure
-Tcl_ParseExpr and new token types TCL_TOKEN_SUB_EXPR and
-TCL_TOKEN_OPERATOR. Expression compiler is reimplemented to use this
-parser. (BL)
-
-12/9/97 (bug fix) Tcl_EvalObj() increments/decrements the refcount of the
-script object to prevent the object from deleting itself while in the
-middle of being evaluated. (CCS)
-
-12/9/97 (bug fix) Memory leak in Tcl_GetsObjCmd(). (CCS)
-
-12/11/97 (bug fix) Environment array leaked memory when compiled with
-Visual C++. (SS)
-
-12/11/97 (bug fix) File events and non-blocking I/O did not work on
-pipes under Windows.  Changed to use threads to achieve non-blocking
-behavior. (SS)
-
-12/18/97 (bug fixes) Fixed segfault in "namespace import"; importing a
-procedure that causes a cycle now returns an error. Modified "info procs",
-"info args", "info body", and "info default" to return information about
-imported procedures as well as procedures defined in a namespace. (BL)
-
-12/19/97 (enhancement) Added new Tcl_GetString() procedure that can be used
-in place of Tcl_GetStringFromObj() if the string representation's length
-isn't needed. (BL)
-
-12/18/97 (bug fix) In the opt argument parsing package: if the description
-had only flags, the "too many arguments" case was not detected. The default
-value was not used for the special "args" ending argument. (DL)
-
-1/7/98 (clean up) Moved everything not absolutly necessary out of init.tcl
-procs now in auto.tcl and package.tcl can be autoloaded if needed. (DL)
-
-1/7/98 (enhancement) tcltest made at install time will search for it's
-init.tcl where it is, even when using virtual path compilation. (DL)
-
-1/8/98 (os bug workaround) when needed, using a replacement for memcmp so
-string compare "char with high bit set" "char w/o high bit set" returns
-the expected value on all platforms. (DL)
-
-1/8/98 (unix portability/configure) building from .../unix/targetName/
-subdirectories and simply using "../configure" should now work fine. (DL)
-
-1/14/98 (enhancement) Added new regular expression package that
-supports AREs, EREs, and BREs.  The new package includes new escape
-characters, meta-syntax, and character classes inside brackets.
-Regexps involving backslashes may behave differently.  (MH)
-*** POTENTIAL INCOMPATIBILITY ***
-
-1/16/98 (os workaround) Under windows, "file volume" was causing chatter
-and/or several seconds of hanging when querying empty floppy drives.
-Changed implementation to call an empirically-derived function that doesn't
-cause this. (CCS)
-
-1/16/98 (enhancement) Converted regular expressions to a Tcl_Obj type so
-their compiled form gets cached automatically.  Reduced NSUBEXP from 100
-to 20. (BW)
-
-1/16/98 (documentation) Change unclear documentation and comments for
-functions like Tcl_TranslateFileName() and Tcl_ExternalToUtfDString().  Now
-it explicitly says they take an uninitialized or free DString.  A DString
-that is "empty" or "not holding anything" could have been interpreted as one
-currently with a zero length, but with a large dynamically allocated buffer.
-(CCS)
-
------------------ Released 8.1a1, 1/22/98 -----------------------
-
-1/28/98 (new feature) Added a "-direct" optional flag to pkg_mkIndex
-to generate direct loading package indexes (such those you need
-if you use namespaces and plan on using namespace import just after
-package require). pkg_mkIndex still has limitations regarding
-package dependencies but errors are now ignored and with -direct, correct
-package indexes can be generated even if there are dependencies as long
-as the "package provide" are done early enough in the files. (DL)
-
-1/28/98 (enhancement) Performance tuning of regexp and regsub. (CCS)
-
-1/28/98 (bug fix) regexp and regsub with "-indices" returned the byte-offsets
-of the characters in the UTF-8 representation, not the character offsets
-themselves. (CCS)
-
-1/28/98 (bug fix) "clock format 0 -format %Z -gmt 1" would return the local
-timezone string instead of "GMT" on Solaris and Windows.
-
-1/28/98 (bug fix) Restore tty settings when closing serial device on Unix.
-This is good behavior when closing real serial devices, essential when
-closing the pseudo-device /dev/tty because the user's terminal settings
-would be left useless, in raw mode, when tcl quit. (CCS)
-
-1/28/98 (bug fix) Tcl_OpenCommandChannel() was modifying the contents of the
-argv array passed to it, causing problems for any caller that wanted to
-continue to use the argv array after calling Tcl_OpenCommandChannel(). (CCS)
-
-2/1/98 (bug fix) More bugs with %Z in format string argument to strftime():
-1. Borland always returned empty string.
-2. MSVC always returned the timezone string for the current time, not the
-   timezone string for the specified time.
-3. With MSVC, "clock format 0 -format %Z -gmt 1" would return "GMT" the first
-   time it was called, but would return the current timezone string on all
-   subsequent calls. (CCS)
-
-2/1/98 (bug fix) "file stat" was broken on Windows.
-1. "file stat" of a root directory (local or network) or a relative path that
-   resolved to a root directory (c:. when in pwd was c:/) was returning error.
-2. "file stat" on a regular file (S_IFREG), the st_mode was sign extended to
-   a negative int if the platform-dependant type "mode_t" was declared as a
-   short instead of an unsigned short.
-3. "file stat" of a network directory, the st_dev was incorrectly reported
-   as the id of the last accessed local drive rather than the id of the
-   network drive. (CCS)
-
-2/1/98 (bug fix) "file attributes" of a relative path that resolved to a
-root directory was returning error. (CCS)
-
-2/1/98 (bug fix) Change error message when "file attribute" could not
-determine the attributes for a file.  Previously it would return different
-error messages on Unix vs.  Windows vs. Mac. (CCS)
-
-2/4/98 (bug fixes) Fixed several instances of bugs where the parser/compiler
-would reach outside the range of allocated memory. Improved the array
-lookup algorithm in set compilation. (DL)
-
-2/5/98 (change) The TCL_PARSE_PART1 flag for Set/Get(Obj)Var2 C APIs is now
-deprecated and ignored. The part1 is always parsed when the part2 argument
-is NULL. This is to avoid a pattern of errors for extension writers converting
-from string based Tcl_SetVar() to new Tcl_SetObjVar2() and who could easily
-forget to provide the flag and thus get code working for normal variables
-but not for array elements. The performance hit is minimal. A side effect
-of that change is that is is no longer possible to create scalar variables
-that can't be accessed by tcl scripts because of their invalid name
-(ending with parenthesis). Likewise it is also parsed and checked to
-ensure that you don't create array elements of array whose name is a valid
-array element because they would not be accessible from scripts anyway.
-Note: There is still duplicate array elements parsing code. (DL)
-*** POTENTIAL INCOMPATIBILITY ***
-
-2/11/98 (bug fix) Sharing objects between interps, such as by "interp
-eval" or "send" could cause a crash later when dereferencing an interp
-that had been deleted, given code such as:
-	set a {set x y}
-	interp create foo
-	interp eval foo $a
-	interp delete foo
-	unset a
-Interp "foo" was gone, but "a" had a internal rep consisting of bytecodes
-containing a dangling pointer to "foo".  Unsetting "a" would attempt to
-return resources back to "foo", causing a crash as random memory was
-accessed.  The lesson is that that if an object's internal rep depends on
-an interp (or any other data structure) it must preserve that data in
-some fashion. (CCS)
-
-2/11/98 (enhancement) The "interp" command was returning inconsistent error
-messages when the specified slave interp could not be found. (CCS)
-
-2/11/98 (bug fix) Result codes like TCL_BREAK and TCL_CONTINUE were not
-propagating through the master/slave interp boundaries, such as "interp
-eval" and "interp alias".  TCL_OK, TCL_ERROR, and non-standard codes like
-teh integer 57 work.  There is still a question as to whether TCL_RETURN
-can/should propagate. (CCS)
-
-2/11/98 (bug fix) TclCompileScript() was derefering memory 1 byte before
-start of the string to compile, looking for ']'. (CCS,DL)
-
-2/11/98 (bug fix) Tcl_Eval2() was derefering memory 1 byte before start
-of the string to eval, looking for ']'. (CCS,DL)
-
-2/11/98 (bug fix) Compiling "set a(b" was running off end of string. (CCS,DL)
-
-2/11/98 (bug fix) Windows initialization code was dereferencing
-uninitialized memory if TCL_LIBRARY environment didn't exist. (CCS)
-
-2/11/98 (bug fix) Windows "registry" command was dereferencing
-uninitialized memory when constructing the $errorCode for a failed
-registry call. (CCS)
-
-2/11/98 (enhancement) Eliminate the TCL_USE_TIMEZONE_VAR definition from
-configure.in, because it was the same information as the already existing
-HAVE_TM_ZONE definition.  The lack of HAVE_TM_ZONE is used to work around a
-Solaris and Windows bug where "clock format [clock sec] -format %Z -gmt 1"
-produces the local timezone string instead of "GMT". (CCS)
-
-2/11/98 (bug fix) Memleaks and dereferencing of uninitialized memory in
-regexp if an error occurred while compiling a regular expression. (CCS).
-
-2/18/98 (new feature) Added mutexes and thread local storage in order
-to make Tcl thread safe.  For testing purposes, there is a testthread
-command that creates a new thread and an interpreter inside it.  See
-thread.test for examples, but this script-level interface is not fixed.
-Each thread has its own notifier instance to manage its own events,
-and threads can post messages to each other's message queue.
-This uses pthreads on UNIX, and native thread support on other platforms.
-You enable this by configuring with --enable-threads.  Note that at
-this time *Tk* is still not thread safe. Special thanks to
-Richard Hipp: his earlier implementation inspired this work. (BW, SS, JI)
-
-2/18/98 (hidden feature change) The way the env() array is shared among
-interpreters changed.  Updates to env used to trigger write traces in
-other interpreters.  This undocumented feature is no longer implemented.
-Instead, variable tracing is used to keep the C-level environ array in sync
-with the Tcl-level env array. This required adding TCL_TRACE_ARRAY support
-to Tcl_TraceVar2 so that array names works properly. (BW)
-*** POTENTIAL INCOMPATIBILITY ***
-
-2/18/98 (enhancement) Conditional compilation for unix systems (e.g.,
-IRIX, SCO) that use f_bsize instead of st_blksize to determine disk block
-size. (CCS)
-
-2/23/98 (bug fix) Fixed the emulation of polling selects in the threaded
-version of the Unix notifier.  The bug was showing up on a multiprocessor
-as starvation of the notifier thread. (BW)
-
------------------ Released 8.1a2, Feb 23 1998 -----------------------
-
-9/22/98 (bug fix) Changed the value of TCL_TRACE_ARRAY so it no longer
-conflicts with the deprecated TCL_PARSE_PART1 flag.  This should
-improve portability of C code. (stanton)
-
-10/6/98 (bug fix) The compile procedure for "if" incorrectly attempted
-to match against the literal string "if", resulting in a stack
-overflow when "::if" was compiled.  It also would incorrectly accept
-"if" instead of "elsif" in later clauses.  (stanton)
-
-10/15/98 (new feature) Added a "totitle" subcommand to the "string"
-command to convert strings to capitalize the first character of a string
-and lowercase all of the other characters. (stanton)
-
-10/15/98 (bug fix) Changed regexp and string commands to properly
-handle case folding according to the Unicode character
-tables. (stanton)
-
-10/21/98 (new feature) Added an "encoding" command to facilitate
-translations of strings between different character encodings.  See
-the encoding.n manual entry for more details. (stanton)
-
-11/3/98 (bug fix) The regular expression character classification
-syntax now includes Unicode characters in the supported
-classes. (stanton)
-
-11/6/98 (bug fix) Variable traces were causing crashes when upvar
-variables went out of scope. [Bug: 796] (stanton)
-
-11/9/98 (bug fix) "format" now correctly handles multibyte characters
-in %s format strings. (stanton)
-
-11/10/98 (new feature) "regexp" now accepts three new switches
-("-line", "-lineanchor", and "-linestop") that control how regular
-expressions treat line breaks. See the regexp manual entry for more
-details. (stanton)
-
-11/17/98 (bug fix) "scan" now correctly handles Unicode
-characters. (stanton)
-
-11/17/98 (new feature) "scan" now supports XPG3 position specifiers
-and the "%n" conversion character.  See the "scan" manual entry for
-more details. (stanton)
-
-11/17/98 (bug fix) The Tcl memory allocator now returns 8-byte aligned
-chunks of memory which improves performance on Windows and avoids
-crashes on other platforms. [Bug: 834] (stanton)
-
-11/23/98 (bug fix) Applied various regular expression performance bug
-fixes supplied by Henry Spencer. (stanton)
-
-11/30/98 (bug fix) Fixed various thread related race conditions. [Bug:
-880 & 607] (stanton)
-
-11/30/98 (bug fix) Fixed a number of memory overflow and leak
-bugs. [Bug: 584] (stanton)
-
-12/1/98 (new feaure) Added support for Korean encodings. (stanton)
-
-12/1/98 (feature change) Changed the Tcl_EvalObjv interface to remove
-the string and length arguments.
-*** POTENTIAL INCOMPATIBILITY with previous alpha releases ***
-
-12/2/98 (bug fix) Fixed various bugs related to line feed
-translation. [Bug: 887] (stanton)
-
-12/4/98 (new feature) Added a message catalog facility to help with
-localizing Tcl scripts.  Thanks to Mark Harrison for contributing the
-initial implementation of the "msgcat" package. (stanton)
-
-12/7/98 (bug fix) The memory allocator was failing to update the
-block list for large memory blocks that were reallocated into a
-different address. [Bug: 933] (stanton)
-
------------------ Released 8.1b1, Dec 10 1998 -----------------------
-
-12/22/98 (performance improvement) Improved the -command option of the
-lsort command to better use the object system for improved
-performance (about 5x speed up).  Thanks to Syd Polk for suppling the
-patch. [RFE: 726] (rjohnson)
-
-2/10/99 (bug fix) Restored the Tcl_ObjSetVar2/Tcl_ObjGetVar2
-interfaces from 8.0 and renamed the Tcl_GetObjVar2/Tcl_SetObjVar2
-interfaces to Tcl_GetVar2Ex and Tcl_SetVar2Ex.  This should provide
-better compatibility with 8.0. (stanton)
-*** POTENTIAL INCOMPATIBILITY with previous alpha/beta releases ***
-
-2/10/99 (bug fix) Made the eval interfaces compatible with 8.0 by
-renaming Tcl_EvalObj to Tcl_EvalObjEx, renaming Tcl_Eval2 to
-Tcl_EvalEx and restoring Tcl_EvalObj and Tcl_GlobalEvalObj interfaces
-so they match Tcl 8.0. (stanton)
-*** POTENTIAL INCOMPATIBILITY with previous alpha/beta releases ***
-
-2/25/99 (bug fix/new feature) On Windows, the channel drivers for
-consoles and serial ports now completely support file events. (redman)
-
-3/5/99 (bug fix) Integrated patches to fix various configure problems
-that affected HP-UX-11, 64-bit IRIX, Linux, and Solaris. (stanton)
-
-3/9/99 (bug fix) Integrated various AIX related patches to improve
-support for shared libraries. (stanton)
-
-3/9/99 (new feature) Added tcl_platform(user) to provide a portable
-way to get the name of the current user. (welch)
-
-3/9/99 (new feature) Integrated the stub library mechanism contributed
-by Jan Nijtmans, Paul Duffin, and Jean-Claude Wippler.  This feature
-should make it possible to write extensions that support multiple
-versions of Tcl simultaneously.  It also makes it possible to
-dynamically load extensions into statically linked interpreters.  This
-patch includes the following changes:
-      -	Added a Tcl_InitStubs() interface
-      -	Added Tcl_PkgProvideEx, Tcl_PkgRequireEx, Tcl_PkgPresentEx,
-      	and Tcl_PkgPresent.
-      - Added va_list versions of all VARARGS functions so they can be
-	invoked from wrapper functions.
-See the manual for more information. (stanton)
-
-
-3/10/99 (feature change) Replaced Tcl_AlertNotifier with
-Tcl_ThreadAlert since the Tcl_AlertNotifier function relied on passing
-internal data structures. (stanton)
-*** POTENTIAL INCOMPATIBILITY with previous alpha/beta releases ***
-
-3/10/99 (new feature) Added a Tcl_GetVersion API to make it easier to
-check the Tcl version and patch level from C. (redman)
-
-3/14/99 (feature change) Tried to unify the TclpInitLibrary path
-routines to look in similar places from Windows to UNIX.  The new
-library search path is: TCL_LIBRARY, TCL_LIBRARY/../tcl8.1, relative
-to DLL (Windows Only) relative to installed executable, relative to
-develop executable, and relative to compiled-in in location (UNIX
-Only.)  This fix included:
-    - Defining a TclpFindExecutable
-    - Moving Tcl_FindExecutable to a common area in tclEncoding.c
-    - Modifying the TclpInitLibraryPath routines.
-(surles)
-
-3/14/99 (feature change) Added hooks for TclPro Wrapper to initialize
-the location of the encoding files and libraries.  This fix included:
-    - Adding the TclSetPerInitScript routine.
-    - Modifying the Tcl_Init routines to evaluate the non-NULL
-      pre-init script.
-    - Adding the Tcl_SetdefaultEncodingDir and Tcl_GetDefaultEncodingDir
-      routines.
-    - Modifying the TclpInitLibrary routines to append the default
-      encoding dir.
-(surles)
-
-3/14/99 (feature change) Test suite now uses "test" namespace to
-define the test procedure and other auxiliary procedures as well as
-global variables.
-    - Global array testConfige is now called ::test::testConfig.
-    - Global variable VERBOSE is now called ::test::verbose, and
-      ::test::verbose no longer works with numerical values.  We've
-      switched to a bitwise character string.  You can set
-      ::test::verbose by using the -verbose option on the Tcl command
-      line.
-    - Global variable TESTS is now called ::test::matchingTests, and
-      can be set on the Tcl command line via the -match option.
-    - There is now a ::test::skipTests variable (works similarly to
-      ::test::matchTests) that can be set on the Tcl command line via
-      the -match option.
-    - The test suite can now be run in any working directory.  When
-      you run "make test", the working directory is nolonger switched
-      to ../tests.
-(hirschl)
-*** POTENTIAL INCOMPATIBILITY ***
-
---------------- Released 8.1b2, March 16, 1999 ----------------------
-
-3/18/99 (bug fix) Fixed missing/incorrect characters in shift-jis table
-(stanton)
-
-3/18/99 (feature change) The glob command ignores the
-FS_CASE_IS_PRESERVED bit on file systesm and always returns
-exactly what it gets from the system. (stanton)
-*** POTENTIAL INCOMPATIBILITY ***
-
-3/19/99 (new feature) Added support for --enable-64bit.  For now,
-this is only supported on Solaris 7 64bit (SunOS 5.7) using the Sun
-compiler. (redman)
-
-3/23/99 (bug fix) Fixed fileevents and gets on Windows consoles and
-serial devices so that non-blocking channels do not block on partial
-input lines.  (redman)
-
-3/23/99 (bug fix) Added a new Tcl_ServiceModeHook interface.
-This is used on Windows to avoid the various problems that people
-have been seeing where the system hangs when tclsh is running
-outside of the event loop. As part of this, renamed
-TclpAlertNotifier back to Tcl_AlertNotifier since it is public.
-(stanton)
-
-3/23/99 (feature change) Test suite now uses "tcltest" namespace to
-define the test procedure and other auxiliary procedures as well as
-global variables.  The previously chosen "test" namespace was thought
-to be too generic and likely to create conflits.
-(hirschl)
-*** POTENTIAL INCOMPATIBILITY ***
-
-3/24/99 (bug fix) Make sockets thread safe on Windows.
-(redman)
-
-3/24/99 (bug fix) Fix cases where expr would incorrect return
-a floating point value instead of an integer. (stanton)
-
-3/25/99 (bug fix) Added ASCII to big5 and gb2312 encodings.
-(stanton)
-
-3/25/99 (feature change) Changed so aliases are invoked at current
-scope in the target interpreter instead of at the global scope.  This
-was an incompatibility introduced in 8.1 that is being removed.
-(stanton)
-*** POTENTIAL INCOMPATIBILITY with previous beta releases ***
-
-3/26/99 (feature change) --enable-shared is now the default and build
-Tcl as a shared library; specify --disable-shared to build a static Tcl
-library and shell.
-*** POTENTIAL INCOMPATIBILITY ***
-
-3/29/99 (bug fix)  Removed the stub functions and changed the stub
-macros to just use the name without params. Pass &tclStubs into the
-interp (don't use tclStubsPtr because of collisions with the stubs on
-Solaris). (redman)
-
-3/30/99 (bug fix) Loadable modules are now unloaded at the last
-possible moment during Tcl_Finalize to fix various exit-time crashes.
-(welch)
-
-3/30/99 (bug fix) Tcl no longer calls setlocale().  It looks at
-env(LANG) and env(LC_TYPE) instead.  (stanton)
-
-4/1/99 (bug fix) Fixed the Ultrix multiple symbol definition problem.
-Now, even Tcl includes a copy of the Tcl stub library. (redman)
-
-4/1/99 (bug fix) Internationalized the registry package.
-
-4/1/99 (bug fix) Changed the implemenation of Tcl_ConditionWait and
-Tcl_ConditionNotify on Windows.  The new algorithm eliminates a race
-condition and was suggested by Jim Davidson. (welch)
-
-4/2/99 (new apis)  Made various Unicode utility functions public.
-Tcl_UtfToUniCharDString, Tcl_UniCharToUtfDString, Tcl_UniCharLen,
-Tcl_UniCharNcmp, Tcl_UniCharIsAlnum, Tcl_UniCharIsAlpha,
-Tcl_UniCharIsDigit, Tcl_UniCharIsLower, Tcl_UniCharIsSpace,
-Tcl_UniCharIsUpper, Tcl_UniCharIsWordChar, Tcl_WinUtfToTChar,
-Tcl_WinTCharToUtf (stanton)
-
-4/2/99 (feature change) Add new DDE package and removed the Tk
-send command from the Windows version.  Changed DDE-based send
-code into "dde eval" command.  The DDE package can be loaded
-into tclsh, not just wish.  Windows only. (redman)
-
-4/5/99 (bug fix) Changed safe-tcl so that the encoding command
-is an alias that masks out the "encoding system" subcommand.
-(redman)
-
-4/5/99 (bug fix) Configure patches to improve support for
-OS/390 and BSD/OS 4.*. (stanton)
-
-4/5/99 (bug fix) Fixed crash in the clock command that occurred
-with negative time values in timezones east of GMT. (stanton)
-
-4/6/99 (bug fix) Moved the "array set" C level code into a common
-routine (TclArraySet).  The TclSetupEnv routine now uses this API to
-create an env array w/ no elements.  This fixes the bug caused when
-every environ varaible is removed, and the Tcl env variable is
-synched.  If no environ vars existed, the Tcl env var would never be
-created. (surles)
-
-4/6/99 (bug fix) Made the Env module I18N compliant. (surles)
-
-4/6/99 (bug fix) Changed the FindVariable routine to TclpFindVariable,
-that now does a case insensitive string comparison on Windows, and not
-on UNIX. (surles)
-
---------------- Released 8.1b3, April 6, 1999 ----------------------
-
-4/9/99 (bug fix)  Fixed notifier deadlock situation when the pipe used
-to talk back notifier thread is filled with data.  Found as a result of the
-focus.test for Tk hanging. (redman)
-
-4/13/99 (bug fix) Fixed bug where socket -async combined with
-fileevent for writing did not work under Windows NT. (redman)
-
-4/13/99 (encoding fix) Restored the double byte definition of GB2312
-and added the EUC-CN encoding.  EUC-CN is a variant of GB2312 that
-shifts the characters into bytes with the high bit set and includes
-ASCII as a subset. (stanton)
-
-4/27/99 (bug fix) Added 'extern "C" {}' block around the stub table
-pointer declaration so the stub library can be used from C++. (stanton)
-
---------------- Released 8.1 final, April 29, 1999 ----------------------
-
-4/22/99 (bug fix) Changed Windows NT socket implementation to avoid
-creating a communication window.  This avoids the problem where the
-system hangs waiting for tclsh to respond to a system-wide synchronous
-broadcast (e.g. if you change system colors). (redman)
-
-4/22/99 (bug fix) Added call to TclWinInit from TclpInitPlatform when
-building a static library since DllMain will not be invoked.  This
-could break old code that explicitly called TclWinInit, but should be
-simpler in the long run. (stanton)
-*** POTENTIAL INCOMPATIBILITY ***
-
-4/23/99 (bug fix) Added support for the koi8-r Cyrillic
-encoding. [Bug: 1771] (stanton)
-
-4/28/99 (bug fix) Changed internal Tcl_Obj usage to avoid freeing the
-internal representation after the string representation has been
-freed.  This makes it easier to debug extensions. (stanton)
-
-4/30/99 (bug fix) Fixed a memory leak in CommandComplete. (stanton)
-
-5/3/99 (bug fix) Fixed a bug where the Tcl_ObjType was not being set
-in a duplicated Tcl_Obj. [Bug: 1975, 2047] (stanton)
-
-5/3/99 (bug fix) Changed Tcl_ParseCommand to avoid modifying eval'ed
-strings that are already null terminated.  [Bug: 1793] (stanton)
-
-5/3/99 (new feature) Applied Jeff Hobbs's string patch which includes
-the following changes:
-    - added new subcommands: equal, repeat, map, is, replace
-    - added -length option to "string compare|equal"
-    - added -nocase option to "string compare|equal|match"
-    - string and list indices can be an integer or end?-integer?.
-    - added optional first and last index args to string toupper, et al.
-See the string.n manual entry for more details about the new string
-features.  [Bug: 1845] (stanton)
-
-5/6/99 (new feature) Added Tcl_UtfNcmp and Tcl_UtfNcasecmp to make Utf
-string comparision easier. (stanton)
-
-5/7/99 (bug fix) Improved OS/390 support. [Bug: 1976, 1997] (stanton)
-
-5/12/99 (bug fix) Changed Windows initialization code to avoid using
-GetUserName system call in favor of the env(USERNAME) variable.  This
-provides a significant startup speed improvement. (stanton)
-
-5/12/99 (bug fix) Replaced the per-interpreter regexp cache with a
-per-thread cache.  Changed the Regexp object to take advantage of this
-extra cache.  Added a reference count to the TclRegexp type so regexps
-can be shared by multiple objects.  Removed the per-interp regexp cache
-from the interpreter.  Now regexps can be used with no need for an
-interpreter. This set of changes should provide significant speed
-improvements for many Tcl scripts.  [Bug: 1063] (stanton)
-
-5/14/99 (bug fix) Durining initialization on Unix, Tcl now extracts the
-encoding subfield from the LANG/LC_ALL environment variables in cases
-where the locale is not found in the built-in locale table.  It also
-attempts to initialize the locale subsystem so X11 is happy. [Bug: 1989]
-(stanton)
-
-5/14/99 (bug fix) Applied the patch to fix 100-year and 400-year
-boundaries in leap year code, from Isaac Hollander.  [Bug: 2066] (redman)
-
-5/14/99 (bug fix) Fixed a crash caused by a failure to reset the result
-before evaluating the test expression in an uncompiled for
-statement. (stanton)
-
-5/18/99 (bug fix) Modified initialization code on Windows to avoid
-inherenting closed or invalid channels.  If the standard input is
-anything other than a console, file, serial port, or pipe, then we fall
-back to the standard Tk window console. (stanton)
-
-5/19/99 (bug fix) Added an extern "C" block around the entire tcl.h
-header file to avoid C++ linkage issues. (redman)
-
-5/19/99 (new feature) Applied Jeff Hobb's patch to add
-Tcl_StringCaseMatch to support case insensitive glob style matching and
-Tcl_UniCharIs* character classification functions. (stanton)
-
-5/20/99 (bug fix) Added the directory containing the executuble and the
-../lib directory relative to that to the auto_path variable. (redman)
-
---------------- Released 8.1.1, May 25, 1999 ----------------------
-
-5/21/99 (bug fix) Fixed launching command.com on Win95/98, no longer
-hangs. [Bug: 2105] (redman)
-
-5/28/99 (bug fix) Fixed bug where dde calls were being passed an
-invalid dde handle. [Bug: 2124] (stanton)
-
-6/1/99  (bug fix) Small configure.in patches. [Bug: 2121] (stanton)
-
-6/1/99  (bug fix) Applied latest regular expression patches to fix an
-infinite loop bug and add support for testing whether a string could
-match with additional input. [Bug: 2117] (stanton)
-
-6/2/99  (bug fix) Fixed incorrect computation of relative ordering in
-Utf case-insensitive comparison. [Bug: 2135] (stanton)
-
-6/3/99  (bug fix) Fxied bug where string equal/compare -nocase
-reported wrong result on null strings. [Bug: 2138] (stanton)
-
-6/4/99  (new feature) Windows build now uses Cygwin tools plus GNU
-make and autoconf to build static/dynamic and debug/nodebug. (stanton)
-
-6/7/99  (new feature) Optimized string index, length, range, and
-append commands. Added a new Unicode object type. (hershey)
-
-6/8/99  (bug fix) Rolled back Windows socket driver to 8.1.0
-version. (stanton)
-
-6/9/99  (new feature) Added Tcl_RegExpMatchObj and Tcl_RegExpGetInfo
-to public Tcl API, these functions are needed by Expect.  Changed
-tools/genStubs.tcl to always write output in LF mode. (stanton)
-
-6/14/99 (new feature) Merged string and Unicode object types.  Added
-new public Tcl API functions:  Tcl_NewUnicodeObj, Tcl_SetUnicodeObj,
-Tcl_GetUnicode, Tcl_GetUniChar, Tcl_GetCharLength, Tcl_GetRange,
-Tcl_AppendUnicodeToObj. (hershey)
-
-6/16/99 (new feature) Changed to conform to TEA specification, added
-tcl.m4 and aclocal.m4 macro libraries for configure.  (wart)
-
-6/17/99 (new feature) Added new regexp interfaces: -expanded, -line,
--linestop, and -lineanchor switches.  Renamed Tcl_RegExpMatchObj to
-Tcl_RegExpExecObj and added new Tcl_RegExpMatchObj that is equivalent
-to Tcl_RegExpMatch.  Added public macros for regexp flags.  Added
-REG_BOSONLY flag to allow Expect to iterate through a string and only
-find matches that start at the current position within the
-string. (stanton)
-
-6/21/99 (bug fix) Fixed memory leak in TclpThreadCreate where thread
-attributes were not being released.  [Bug: 2254] (stanton)
-
-6/23/99 (new feature) Updated Unicode character tables to reflect
-Unicode 2.1 data. (stanton)
-
-6/25/99 (new feature) Fixed bugs in non-greedy quantifiers for regular
-expression code. (stanton)
-
-6/25/99 (new feature) Added initial implementation of new Tcl test
-harness package.  Modified test files to use new tcltest package.
-(jenn)
-
-6/26/99 (new feature) Applied patch from Peter Hardie to add poke
-command to dde and changed the dde package version number to
-1.1. (redman)
-
-6/28/99 (bug fix) Applied patch from Peter Hardie to fix problem in
-Tcl_GetIndexFromObj() when the key being passed is the empty string.
-[Bug: 1738] (redman)
-
-6/29/99 (new feature) Added options to tcltest package: -preservecore,
--limitconstraints, -help, -file, -notfile, and flags.  (jenn)
-
-7/3/99  (new feature) Changed parsing of variable names to allow empty
-array names.  Now "$(foo)" is a variable reference.  Previously you
-had to use something line $::(foo), which is slower.  This change was
-requested by Jean-Luc Fontaine for his STOOOP package. (welch)
-
-7/3/99  (new feature) Added Tcl_SetNotifier (public API) and
-associated hook points in the notifiers to be able to replace the
-notifier calls at runtime. The Xt notifier and test program use this
-hook.  (welch)
-
-7/3/99  (new feature) Added a new variant of the "Trf core patch" from
-Andreas Kupries that adds new C APIs Tcl_StackChannel,
-Tcl_UnstackChannel, and Tcl_GetStackedChannel.  This allows the Trf
-extension to work without applying patches to the Tcl core. (welch)
-
-7/6/99  (new feature) Added -timeout option to http.tcl to handle
-timeouts that occur during connection attempts to hosts that are
-down. (welch)
-
-7/6/99  (bug fix) Applied new implementation of the Windows serial
-port driver from Rolf Schroedter that fixes reading only one byte from
-the port at a time.  Uses polling every 10ms to implement
-fileevents. [Bug: 1980 2217] (redman)
-
-7/8/99  (bug fix) Applied fix for bug in DFA state caching under
-lookahead conditions (regular expressions).  [Bug: 2318] (stanton)
-
-7/8/99  (bug fix) Fixed bug in string range bounds checking
-code. (stanton)
-
---------------- Released 8.2b1, July 14, 1999 ----------------------
-
-7/16/99 (bug fix) Added Tcl_SetNotifier to stub table. [Bug: 2364]
-Added check for Alpha/Linux to correct the IEEE  floating point flag,
-patch from Don Porter. (redman)
-
-7/20/99 (bug fix) Merged 8.0.5 code to handle tcl_library properly,
-also fixed a bug that caused TCL_LIBRARY to be ignored. (hershey)
-
-7/21/99 (bug fix) Implemented modified socket driver for Windows that
-uses a thread to manage the socket event window.  Code works the same
-on all supported versions of Windows and was based on original 8.1.0
-code.  [Bug: 2178 2256 2259 2329 2323 2355] (redman)
-
-7/21/99 (new feature) Applied patch from Rolf Schroedter to add
--pollinterval option to fconfigure for Windows serial ports.  Allows
-the maxblocktime to be modified to control how often serial ports are
-checked for fileevents.  Also added documentation for \\.\comX
-notation for opening serial ports on Windows.  (redman)
-
-7/21/99 (bug fix) Changed APIs in stub tables to use "unsigned long"
-instead of the platform-specific "size_t", primarily after SunOS 4
-users could no longer compile. (redman)
-
-7/22/99 (bug fix) Fixed crashing during "array set a(b) {}".
-[Bug: 2427] (redman)
-
-7/22/99 (bug fix) The install-sh script must be given execute
-permissions prior to running.  [Bug: 2413] (redman)
-
-7/22/99 (bug fix) Applied patch from Ulrich Ring to remove ANSI-style
-prototypes in the code.  [Bug: 2391] (redman)
-
-7/22/99 (bug fix) Added #if blocks around #includes of sys/*.h header
-files, to allow an extension author on Windows to use the MetroWerks
-compiler. [Bug: 2385] (redman)
-
-7/22/99 (bug fix) Fixed running the safe.test test suite, one change
-to the Windows Makefile.in to fix paths and another in safe.test to
-check for the tcl_platform(threaded) variable properly. (redman)
-
-7/22/99 (bug fix) Fixed hanging in new Win32 socket driver with
-threads enabled. (redman)
-
-7/26/99 (bug fix) Fixed terminating of helper threads by holding any
-mutexes from the primary thread while waiting for the helper thread to
-terminate.  Fixes dual-CPU WinNT hangs, only one rare sporadic hang
-that still exists with dual-CPU WinNT.  Also fixed test cases so that
-they would not depend as much on timing for dual-CPU WinNT. (redman)
-
-7/27/99 (bug fix) Some test suite cleanup. (jenn)
-
-7/29/99 (bug fix) Applied patch to fix typo in .SH NAME line in
-doc/Encoding.n [Bug: 2451].  Applied patch to avoid linking pack.n to
-pack-old.n [Bug: 2469]. Patches from Don Porter. (redman)
-
-7/29/99 (bug fix) Allow tcl to open CON and NUL, even for redirection
-of std channels.  [Bug: 2393 2392 2209 2458] (redman)
-
-7/30/99 (bug fix) Applied fixed Trf patch from Andreas Kupries.
-[Bug: 2386] (hobbs)
-
-7/30/99 (bug fix) Fixed bug in info complete. [Bug: 2383 2466] (hobbs)
-
-7/30/99 (bug fix) Applied patch to fix threading on Irix 6.5, patch
-provided by James Dennett.  [Bug: 2450] (redman)
-
-7/30/99 (bug fix) Fixed launching of 16bit applications on Win9x from
-wish.  The command line was being primed with tclpip82.dll, but it was
-ignored later.
-
-7/30/99 (bug fix) Added functions to stub table, patch provided by Jan
-Nijtmans. [Bug: 2445] (hobbs)
-
-8/1/99  (bug fix) Changed Windows socket driver to terminate threads
-by sending a message to the window rather than calling
-TerminateThread(), which seems to leak about 4k from the helper
-thread's stack space. (redman)
-
---------------- Released 8.2b2, August 5, 1999 ----------------------
-
-8/4/99 (bug fix) Applied patches supplied by Henry Spencer to greatly
-enhance performance of certain classes of regular expressions.
-[Bug: 2440 2447] (stanton)
-
-8/5/99 (doc change) Made it clear that tcl_pkgPath was not set for
-Windows. [Bug: 2455] (hobbs)
-
-8/5/99 (bug fix) Fixed reference to bytes that might not be null
-terminated in tclLiteral.c. [Bug: 2496] (hobbs)
-
-8/5/99 (bug fix) Fixed typo in http.tcl. [Bug: 2502] (hobbs)
-
-8/9/99 (bug fix) Fixed test suite to handle larger integers
-(64bit). Patch from Don Porter. (hobbs)
-
-8/9/99 (documentation fix) Clarified Tcl_DecrRefCount docs
-[Bug: 1952]. Clarified array pattern docs [Bug: 1330]. Fixed clock docs
-[Bug: 693]. Fixed formatting errors [Bug: 2188 2189]. Fixed doc error
-in tclvars.n [Bug: 2042]. (hobbs)
-
-8/9/99 (bug fix) Fixed path handling in auto_execok [Bug: 1276] (hobbs)
-
-8/9/99 (internal api change) Removed the TclpMutexLock and TclpMutexUnlock
-APIs and added a new exported api, Tcl_GetAllocMutex. These APIs are all for
-the mutex used in the simple memory allocators.  By making this change
-we are able to substitute different implementations of the thread-related
-APIs without having to recompile the Tcl core. (welch)
-
-8/9/99 (new C API) Tcl_GetChannelNames returns a list of open channel
-names in the interpreter result.  Still no Tcl-level version of this,
-but server-like applications can use this to clean up files without
-deleting interpreters. (welch)
-
-8/9/99 (bug fix) Traces were not firing on "info exists", which used to
-happen in Tcl 7.6 and earlier. An "info exists" now fires a read trace,
-if defined.  This makes it possible to fully implement variables that
-are defined via traces. (welch)
-
-8/10/99 (bug fix) Fixed Brent's changes so that they work on
-Windows. (redman)
-
---------------- Released 8.2b3, August 11, 1999 ----------------------
-
-8/12/99 (Mac) Rearrange projects in tclMacProjects.sea.hqx so that the
-build directory is separate from the sources. (Jim Ingham)
-
-8/12/99 (bug fix) Fixed bug in Tcl_EvalEx where the termOffset was not
-being updated in cases where the evaluation returned a non TCL_OK
-error code. [Bug: 2535] (stanton)
-
---------------- Released 8.2.0, August 17, 1999 ----------------------
-
-9/21/99 (config fixes) fixed several AIX configuration issues.  gcc and
-threading may still cause problems on AIX. (hobbs)
-
-9/21/99 (bug fix) fixed expr double-eval problem. [Bug: 732] (hobbs)
-
-9/21/99 (bug fix) fixed static buffer overflow problem. [Bug: 2483] (hobbs)
-
-9/21/99 (bug fix) fixed end-int linsert interpretation. [Bug: 2693] (hobbs)
-
-9/21/99 (bug fix) fixed bug when setting array in non-existent
-namespace. [Bug: 2613] (hobbs)
-
---- Released 8.2.1, October 04, 1999 --- See ChangeLog for details ---
-
-10/30/99 (feature enhancement) new regexp engine from Henry Spencer
-was patched in - should greatly reduce stack space usage. (spencer)
-
-10/30/99 (bug fix) fixed Purify reported memory leaks in findexecutable
-test command, TclpCreateProcess on Unix, in handling of C environ array,
-and in testthread code.  No more known (reported) mem leaks for Tcl
-built using gcc on Solaris 2.5.1.  Also none reported for Tcl on NT
-(using Purify 6.0). (hobbs)
-
-10/30/99 (bug fix) fixed improper bytecode handling of
-'eval {set array($unknownvar) 5}' (also for incr) (hobbs)
-
-10/30/99 (bug fix) fixed event/io threading problems by making
-triggerPipe non-blocking (nick kisserbeth)
-
-10/30/99 (bug fix) fixed Tcl_AppendStringsToObjVA and Tcl_AppendResultVA
-to only	iterates once over the va_list (avoiding non-portable memcpy).
-(joe english, hobbs)
-
-10/30/99 (bug fix) removed savedChar trick in tclCompile.c that appeared
-to be causing a segv when the literal table was released.
-[Bug: 2459, 2515] (David Whitehouse)
-
-10/30/99 (bug fix) fixed [string index] to return ByteArrayObj
-when indexing into one (test case string-5.16) [Bug: 2871] (hobbs)
-
-10/30/99 (bug fix) fixes for mac UTF filename handling (ingham)
-
---- Released 8.2.2, November 04, 1999 --- See ChangeLog for details ---
-
-11/19/99 (feature enhancement) bug fixes for http package as well as
-patch required by TLS (SSL) extension that adds http::(un)register
-and -type to http::geturl.  Up'd http pkg version to 2.2.
-
-11/19/99 (bug fix) removed extra decr of numLevels in Tcl_EvalObjEx
-that could cause seg fault (mjansen@wendt.de)
-
-11/19/99 (bug fixes) numerous minor big fixes, including correcting the
-installation of the koi8-r encoding and tcltest1.0 on Windows.
-
-11/30/99 (bug fix) fixes scan where %[..] didn't match anything
-
-11/30/99 (bug fix) fixed setting of isNonBlocking flag in PipeBlockModeProc
-so you can now close a non-blocking channel without waiting.
-
-11/30/99 (bug work-around) prevented the unloading of DLLs for Unix in
-TclFinalizeLoad.  This stops the seg fault on exit that some users would
-see (ie with oratcl) when using DLLs that do nasty things like register
-atexit handlers.
-
-12/07/99 (bug fix) fixes for 'expr + {[incr]}' and 'expr + {[error]}'
-cases (different causes).
-
---- Released 8.2.3, December 16, 1999 --- See ChangeLog for details ---
-
-1999-09-14 (feature enhancement) added -start switch to regexp and regsub.
-
-1999-09-15 (feature enhancement) add 'array unset' command.
-
-1999-09-15 (feature enhancement) rewrote runtime libraries to use new
-string functions
-
-1999-08-18 (feature enhancement) added 'file channels' command, along with
-Tcl_GetChannelNames(Ex) public C APIs.
-
-1999-10-19 (feature enhancement) enhanced tcltest package
-
-1999-09-16 (feature enhancement) added -milliseconds switch to 'clock clicks'
-
-1999-10-28 (feature enhancement) added support for inline 'scan'
-
-1999-10-28 (feature enhancement) added support for touch functionality by
-extendeding 'file atime' and 'file mtime' to take an optional time argument
-
-1999-11-24 (feature enhancement) added 'fconfigure $sock -lasterror'
-command to Windows to query the last error received on a serial socket.
-
-1999-11-30 (bug fix) fixed handling of %Z on NT for timezones that don't
-have DST
-
-1999-12-03 (feature enhancement) improved error message in bad octal cases
-and improper use of comments. (hobbs)
-
-1999-12-07 (bug fix) fixed Tcl_ScanCountedElement to not step
-beyond the end of the counted string
-
-1999-12-09 (feature enhancement) removed all references to 16 bit
-compatibility code for Windows (hobbs)
-
-1999-12-10 (bug fix) removed check for vfork - Tcl now uses only fork in
-exec. (hobbs)
-
-1999-12-10 (optimization) changed Tcl_ConcatObj to return a list
-object when it receives all pure list objects as input (used by 'concat'),
-added optimizations in Tcl_EvalObjEx for pure list case, and optimized
-INST_TRY_CVT_TO_NUMERIC in TclExecuteByteCode for boolean objects.
-(oakley, hobbs)
-
-1999-12-12 (feature enhancement) enhanced glob command with -type, -path,
--directory and -join switches. (darley, hobbs)
-
-1999-12-21 (bug fix) changed CreateThread to _beginthreadex and
-ExitThread to _endthreadex to prevent 4K mem leak (gravereaux)
-
-1999-12-21 (bug fix) fixed applescript for I18N
-
-1999-12-21 (feature enhancement) added -unique option to lsort (hobbs)
-
-1999-12-21 (bug fix) changed thread ids to longs (for 64bit systems)
-
---- Released 8.3b1, December 22, 1999 --- See ChangeLog for details ---
-
-2000-01-10 (feature enhancement) clock scan now supports the common
-ISO 8601 date/time formats.  See docs for details. (melski)
-
-2000-01-10 (bug fix) prevented \ooo substitution from accepting
-non-octal digits [Bug: 3975] (hobbs)
-
-2000-01-11 (bug fix) fixed improper handling of DST by clock when
-using relative times (like "1 month" or "tomorrow"). (melski)
-
-2000-01-12 (bug fix) improved build support for Tru64 v5, NetBSD
-and Reliant Unix (hobbs)
-
-2000-01-12 (bug fix) made imported commands also import their
-compile procedure (duffin)
-
-2000-01-12 (bug fix) fixed 'info procs ::namesp::*' behavior to return
-procs in a namespace (dejong)
-
-2000-01-12 (feature enhancement) added support for setting permissions
-symbolicly (like chmod) in [file attributes $file -permissions ...] (schoebel)
-
-2000-01-13 (bug fix) fixed lsort -dictionary problem when sorting
-characters between 'Z' and 'a' (flawed upper/lower comparison logic) (melski)
-
---- Released 8.3b2, January 13, 2000 --- See ChangeLog for details ---
-
-2000-01-14 (feature enhancement) clock format %Q added, clock scan updated
-
-2000-01-20 (bug fix) corrected complex array elem compiling (Spjuth)
-
-2000-01-20 (bug fix) made [info body] always return a string type arg,
-to prevent possible misuse of bytecodes in the wrong context (hobbs)
-
-2000-01-20 (bug fixes) several fixes to variable handling to prevent
-possible crashes, and further definition of correct behavior (melski)
-
-2000-01-25 (bug fixes) improved QNX, Ultrix and OSF1 (Tru64) config and
-compatibility (edge, furukawa)
-
-2000-01-25 (bug fix) fixed mem leak when calling lsort with a bad -command
-argument (hobbs)
-
-2000-01-27 (feature enhancement) package mechanism overhaul: changed
-behavior of pkg_mkIndex to do -direct by default, added -lazy option.
-Fixed pkg_mkIndex to handle odd proc names and auto_mkIndex to use platform
-independent file paths.  Other fixes for odd package quirks.  Added
-::pkg namespace and ::pkg::create helper function. (melski)
-
-2000-02-01 (bug fix) fixed problem where http POST would send one extra
-newline (vasiljevic)
-
-2000-02-02 (feature enhancement) added docs for new regexp -inline and
--all switches. (hobbs)
-
-2000-02-08 (bug fix) corrected handling of "next monthname" in clock scan
-(melski)
-
-2000-02-09 (bug fix) restored Mac source to build readiness and prevented
-mac panic from an error when closing an async socket (steffen, ingham)
-
-2000-02-10 (feature enhancement) improved error reporting for failed
-loads on Windows (dejong, hobbs)
-
---- Released 8.3.0, February 10, 2000 --- See ChangeLog for details ---
-
-2000-03 (bug fixes, feature enhancement) overhaul of http package for
-proper handling of async callbacks (new options), version is now at 2.3
-(tamhankar, welch)
-
-2000-03 (performance enhancement) speedup in Windows filename handling (newman)
-and ==/!= empty string in exprs. (hobbs)
-
-2000-03-27 (bug fix) added uniq'ing test to namespace export list to
-prevent unnecessary mem growth (hobbs)
-
-2000-03-29 (bug fix) fixed mem leak when repeatedly sourcing the same
-bytecompiled (tbc) code repeatedly across different interpreters (hobbs)
-
-2000-03-29 (config enhancement) improved build support for gcc/mingw on
-Windows (nijtmans, hobbs) and added RPM target (melski)
-
-2000-03-31 (bug fix) corrected data encoding problem when using
-"exec << $data" construct (melski)
-
-2000-04 (feature enhancement) overhaul of threading mechanism to better
-support tcl level thread command (new APIs Tcl_ConditionFinalize,
-Tcl_MutexFinalize, Tcl_CreateThread, etc, all docs in Thread.3).
-(kupries, graveraux)
-This enables the tcl level thread extension. (welch)
-
-2000-04-10 (bug fix) fixed infinite loop case in regexp -all (melski)
-
-2000-04-13 (config enhancement) added support for --enable-64bit-vis
-Sparc target. (hobbs)
-
-2000-04-18 (bug fix) moved tclLibraryPath to thread-local storage to fix
-possible race condition on MP machines (hobbs)
-
-2000-04-18 (config enhancement) added MacOS X build target and
-tclLoadDyld.c dl type. (sanchez)
-
-2000-04-23 (bug fix) several Mac socket fixes (ingham)
-
-2000-04-24 (bug fix) fixed hang in threaded Unix case when backgrounded
-exec process was running (dejong)
-
---- Released 8.3.1, April 26, 2000 --- See ChangeLog for details ---
-
-2000-04-26 (doc fix) updated/added documentation for many API's and
-commands (melski)
-
-2000-05-02 (feature enhancement) added support for joinable threads;
-extended API's for channels to allow channels to move between threads
-(kupries)
-
-2000-05-02 (feature enhancement) changed error return for procedures
-with incorrect args to be like the Tcl_WrongNumArgs API, with a "wrong
-# args: ..." message printed, with an args list (hobbs)
-
-2000-05-08 (feature enhancement) added [array statistics] command
-
-2000-05-08 (performance enhancement) rewrote Tcl_StringCaseMatch
-algorithm for better performance; this affects the [string match]
-command; added "eq" and "ne" operands to expr, for testing
-string equality and inequality (hobbs)
-
-2000-05-09 (feature enhancement) extended [lsearch] to support sorted
-list searches and typed list searches (melski)
-
-2000-05-10 (feature enhancement) added [namespace exists] command
-(darley)
-
-2000-05-18 (build enhancement) added support for mingw compile env and
-cross-compiling (dejong)
-
-2000-05-18 (bug fix) corrected clock grammar to properly handle the
-"ago" keyword when it follows multiple relative unit specifiers
-(melski)
-
-2000-05-22 (compile fix) type cast cleanups (dejong)
-
-2000-05-23 (performance enhancement) added byte-compiled
-implementation of [return] command and [string] command (melski)
-
-2000-05-26 (performance enhancement) extended byte-compiled [string]
-command with support for [string compare/index/match] (hobbs)
-
-2000-05-27 (feature enhancement) added ability to set [info script]
-return value ([info script ?newFileName?]) (welch)
-
-2000-05-31 (feature enhancement) added support for regexp and exact
-pattern matching for [array names] (gazetta)
-
-2000-05-31 (feature enhancement) added -nocomplain and -- flags to
-[unset] to allow for silent unset operation (hobbs)
-
---- Released 8.4a1, June 6, 2000 --- See ChangeLog for details ---
-
-2000-05-29 (bug fix) corrected resource cleanup in http error cases.
-Improved handling of error cases in http. (tamhankar)
-
-2000-07 (feature rewrite) complete rewrite of the Tcl IO channel subsystem
-to correct problems (hangs, core dumps) with the initial stacked channel
-implementation.  The new system has many more tests for robustness and
-scalability.  There are new C APIs (see Tcl_CreateChannel), but only
-stacked channel drivers are affected (ie: TLS, Trf, iogt).  The iogt
-extension has been added to the core test code to test the system.
-(hobbs, kupries)
-	**** POTENTIAL INCOMPATABILITY ****
-
-2000-07 (build improvements) cleanup of the makefiles and configure scripts
-to correct support for building under gcc for Windows. (dejong)
-
-2000-08-07 (bug fix) corrected sizeof error in Tcl_GetIndexFromObjStruct.
-(perkins)
-
-2000-08-07 (bug fix) correct off-by-one error in HistIndex, which was
-causing [history redo] to start its search at the wrong event index. (melski)
-
-2000-08-07 (bug fix) corrected setlocale calls for XIM support and locale
-issues in startup. (takahashi)
-
-2000-08-07 (bug fix) correct code to handle locale specific return values
-from strftime, if any. (wagner)
-
-2000-08-07 (bug fix) tweaked grammar to properly handle the "ago" keyword
-when it follows multiple relative unit specifiers, as in
-"2 days 2 hours ago". (melski)
-
-2000-08-07 (doc fixes) numerous doc fixes to correct SEE ALSO and NAME
-sections. (english)
-
-2000-08-07 (bug fix) new man pages memory.n, TCL_MEM_DEBUG.3, Init.3 and
-DumpActiveMemory.3. (melski)
-
---- Released 8.3.2, August 9, 2000 --- See ChangeLog for details ---
-
-2000-06 thru 2000-11 (build improvements) Added support for mingw (gcc on
-Windows), AIX-5 and Win64 builds (dejong, hobbs)
-
-2000-06-23 (feature enhancement) ability to use Tcl_Obj *s as hash keys (duffin)
-
-2000-06-29 (new features) added [mcmax] and [mcmset] and extended [unknown] in
-msgcat package (duperval, krone, nelson)
-=> msgcat 1.1
-
-2000-08 thru 2000-09 added tclPlatDecls.h to default install (melski, hobbs)
-
-2000-08-24 (new feature) Enhanced trace syntax to add:
-	trace {add|remove|list} {variable|command} name ops command
-(darley, melski)
-
-2000-09-06 (cross-platform feature) Set ^Z (\32) as default EOF char. (hobbs)
-
-2000-09-07 partial fix for bug 2460 to prevent exec mem leak on Windows for the
-common case (gravereaux)
-
-2000-09-14 Improved string allocation growth for large strings (hintermayer,
-melski)
-
-2000-09-14 New non-panic'ing mem allocation functions Tcl_AttemptAlloc,
-Tcl_AttemptRealloc, Tcl_AttemptSetObjLength (melski)
-
-2000-09-20 (new features) completely new, enhanced syntax in tcltest package.
-Backwards compatable with tcltest v1. (hom)
-=> tcltest 2.0
-
-2000-09-27 (bug fix) fixed a bug introduced by a partial fix in 8.3.2 that
-didn't set nonBlocking correctly when resetting the flags for the write
-side (mem leak) Correct mem leak in channels when statePtr was released
-(hobbs)
-
-2000-09-29 (bug fix) corrected reporting of space parity on Windows (Eason)
-
-2000-10-06 (bug fix) corrected [file channels] to only return channels in
-the current interpreter (hobbs)
-
-2000-10-20 (performance enhancement) call stat only when necessary in 'glob' to
-speed up command significantly in base cases (hobbs)
-
-2000-10-27 Fixed mem leak in Tcl_CreateChannel. Re-purified core via test
-suites.  (hobbs)
-
-2000-10-30 (new feature) add "ja_JP.eucJP" map to "euc-jp" encoding (takahashi)
-
-2000-11-01 (mem leak) Corrected excessive mem use of info exists on a
-non-existent array element (hobbs)
-
-2000-11-02 (bug fix) Corrected sharing of tclLibraryPath in threaded
-environment (gravereaux)
-
-2000-11-03 (new feature) Tcl_SetMainLoop enables defining an event loop for
-tclsh.  This enables Tk as a truly loadable package. (hobbs)
-
---- Released 8.4a2, November 3, 2000 --- See ChangeLog for details ---
-
-2000-09-27 (bug fix) fixed a bug introduced by a partial fix in 8.3.2 that
-didn't set nonBlocking correctly when resetting the flags for the write
-side (mem leak) Correct mem leak in channels when statePtr was released
-(hobbs)
-
-2000-09-29 (bug fix) corrected reporting of space parity on Windows (Eason)
-
-2000-10-06 (bug fix) corrected [file channels] to only return channels in
-the current interpreter (hobbs)
-
-2000-10-20 (performance enhancement) call stat only when necessary in 'glob' to
-speed up command significantly in base cases (hobbs)
-
-2000-11-01 (mem leak) Corrected excessive mem use of info exists on a
-non-existent array element (hobbs)
-
-2000-11-02 (bug fix) Corrected sharing of tclLibraryPath in threaded
-environment (gravereaux)
-
-2000-11-23 (mem leak) fixed potential memory leak in error case of lsort
-(fellows)
-
-2000-12-09 (feature enhancement) changed %o and %x to use strtoul instead
-of strtol to correctly preserve scan<>format conversion of large integers
-(hobbs)
-Fixed handling of {!<boolean>} in expressions (hobbs, fellows)
-
-2000-12-14 (feature enhancement) improved (s)rand for 64-bit platforms
-(porter)
-
-2001-01-04 (bug fix) corrected parsing of $tcl_libPath at startup on
-Windows (porter)
-
-2001-01-30 (bug fix) Fixed possible hangs in fcopy. (porter)
-
-2001-02-15 (performance enhancement) improved efficiency of [string split]
-(fellows)
-
-2001-03-13 (bug fix) Correctly possible memory corruption in string map {}
-$str (fellows)
-
-2001-03-29 (bug fix) prevent potential race condition and security leak in
-tmp filename creation on Unix. (max)
-Fixed handling of timeout for threads (corrects excessive CPU usage issue
-for Tk on Unix in threaded Tcl environment). (ruppert)
-
-2001-03-30 (bug fix) corrected Windows memory error on exit (wu)
-Fixed race condition in readability of socket on Windows.
-
-2001-04-03 (doc fixes) numerous doc corrections and clarifications.
-Update of READMEs.
-
-2001-04-04 (build improvements) redid Mac build structure (steffen)
-Corrected IRIX-5* configure (english).  Added support for AIX-5 (hobbs).
-Added support for Win64 (hobbs).
-
---- Released 8.3.3, April 6, 2001 --- See ChangeLog for details ---
-
-2000-11-23 (new feature)[TIP 7] higher resolution timer on Windows (kenny)
-
-2001-01-18 (new feature) Tcl_InitHashTableEx renamed to Tcl_InitCustomHashTable
-(kupries)
-
-2001-03-30 (new feature)[TIP 10] support for thread-aware/hot channels (kupries)
-
-2001-04-06 (new feature)[219280] auto-loading hidden in ::errorInfo (porter)
-
-2001-04-07 (bug fix)[406709] corrected panic when extra items left on the
-byte compiler execution stack (sofer)
-
-2001-04-09 (bug fix)[219136,232558] improved use of thread-safe functions in
-unix time commands (kenny)
-
-2001-04-24 (new feature)[TIP 27] started CONST-ification of the Tcl APIs (kenny)
-
-2001-05-03 (new feature) [auto_import] now matches patterns like
-[namespace import], not like [string match] (porter)
-        **** POTENTIAL INCOMPATABILITY ****
-
-2001-05-07 (new feature)[416643] distinct srand() seed per interp (sofer)
-
-2001-05-15 (new feature) new Tcl_GetUnicodeFromObj API (hobbs)
-
-2001-05-16 (performance enhancement) byte-compiled versions of [lappend],
-[append] simple cases (hobbs)
-
-2001-05-23 (new feature) added ISO-8859-15 and koi8-u encodings, updated other
-encoding tables based on http://www.unicode.org/Public/MAPPINGS/ (kuhn)
-
-2001-05-27 (new feature) updated to Unicode 3.1.0 data set (still using 16
-bits for Tcl_UniChar though) (hobbs)
-
-2001-05-30 (new feature)[TIP 15] Tcl_GetMathFuncInfo, Tcl_ListMathFuncs,
-Tcl_InfoObjCmd, InfoFunctionsCmd APIs (fellows)
-
-2001-06-08 (bug fix,feature enhancement)[219170,414936] all Tcl_Panic
-definitions brought into agreement (porter)
-
-2001-06-12 (bug fix)[219232] regexp returned non-matching sub-pairs to have
-index pair {-1 -1} (fellows)
-
-2001-06-27 (bug fix)[217987] corrected backslash substitution of non-ASCII
-characters.  (hobbs, riefenstahl)
-
-2001-06-28 (bug fix)[231259] failure to re-compile after cmd shadowing (sofer)
-
-2001-07-02 (bug fix)[227512] corrected [concat] treatment of UTF-8 strings
-(hobbs, barras)
-
-2001-07-12 (new feature)[TIP 36] Tcl_SubstObj API (fellows)
-
-2001-07-16 (bug fix) corrected thread-enabled pipe closing on Windows
-(hobbs, jsmith)
-
-2001-07-18 (bug fix)[427196] corrected memory overwrite error when buffer size
-of a channel is changed after channel use has already begun (kupries, porter)
-
-2001-07-31 (new feature)[TIP 17] TclFS* APIs provide new virtual file
-system.  This includes the addition of 'file normalize', 'file system',
-'file separator' and 'glob -tails' (darley)
-
-2001-08-06 (bug fix) removed use of tmpnam in TclpCreateTempFile on Unix (lim)
-
- * improved build support for IRIX, GNU HURD, Mac OS 9 and OS X
-
- * configure scripts revamped for better support of cygwin and gcc on
-   Windows (mdejong)
-
- * corrected several minor errors noted by Purify (hobbs)
-
---- Released 8.4a3, August 6, 2001 --- See ChangeLog for details ---
-
-2001-06-27 (bug fix)[217987] corrected backslash substitution of non-ASCII
-characters.  (hobbs, riefenstahl)
-
-2001-06-28 (bug fix)[231259] failure to re-compile after cmd shadowing (sofer)
-
-2001-07-02 (bug fix)[227512] corrected [concat] treatment of UTF-8 strings
-(hobbs, barras)
-
-2001-07-16 (bug fix) corrected thread-enabled pipe closing on Windows
-(hobbs, jsmith)
-
-2001-07-18 (bug fix)[427196] corrected memory overwrite error when buffer size
-of a channel is changed after channel use has already begun (kupries, porter)
-
-2001-08-06 (bug fix)[442665] corrected object reference counting in [gets]
-(jikamens)
-
-2001-08-06 (new feature) added GNU (HURD) configuration target. (brinkmann)
-
-2001-08-07 (bug fix)[406709] corrected panic when extra items left on the
-byte compiler execution stack (see test foreach-5.5) (sofer, tallneil, jstrot)
-
-2001-08-08 (new features) updated packages msgcat 1.1.1, opt 0.4.3,
-tcltest 1.0.1, dependencies checked (porter)
-
-2001-08-20 (new feature)[452217] http 2.3.2: include port number in Host: header
-to comply with HTTP/1.1 spec (RFC 2068)  (hobbs, tils)
-
-2001-08-23 (new feature) added QNX-6 build support (loverso)
-
-2001-08-23 (bug fix) corrected handling of spaces in path name passed to
-[exec] on Windows (kenpoole)
-
-2001-08-24 (bug fix) corrected [package forget] stopping on non-existent
-package (porter)
-
-2001-08-24 (bug fix) corrected construction of script library search path
-relative to executable (porter)
-
-2001-08-24 (bug fix) [auto_import] now matches patterns like
-[namespace import], not like [string match] (porter)
-        **** POTENTIAL INCOMPATABILITY ****
-
-2001-08-27 (new feature) added Tcl_SetMainLoop() to enable loading Tk as a
-true package (hobbs)
-
-2001-08-30 (bug fix) build support for Crays (andreasen)
-
-2001-09-01 (bug fix) rewrite of Tcl_Async* APIs to better manage thread
-cleanup  (gravereaux)
-
-2001-09-06 (new feature) http 2.4: honor the Content-encoding and charset
-parameters; add -binary switch for forcing the issue (hobbs, saoukhi, orwell)
-=> http 2.4
-
-2001-09-06 (performance enhancement) rewrite of file I/O flush management on
-Windows.  Approximately 100x speedup for some operations. (kupries, traum)
-
-2001-09-10 (bug fix) corrected finalization error in TclInExit (darley)
-
-2001-09-10 (bug fix) protect against alias loops (hobbs)
-
-2001-09-12 (bug fix) added missing #include in tclLoadShl.c (techentin)
-
-2001-09-12 (bug fix) script library path construction on Windows no longer
-uses registry, nor adds the current working directory to the path (porter)
-
-2001-09-12 (bug fix) correct bugs in compatibility strtod() (porter)
-
-2001-09-13 (bug fix) Tcl_UtfPrev now returns the proper location when the
-middle of a UTF-8 byte is passed in (hobbs)
-
-2001-09-19 (bug fix) [format] and [scan] corrected for 64-bit machines (rmax)
-
-2001-09-19 (new feature) --enable-64-bit support for HP-11. (hobbs)
-
-2001-09-19 (new feature) native memory allocator now default on Windows
-(hobbs)
-
-2001-09-20 (new feature) WIN64 support and extra processor definitions
-(hobbs, mstacy)
-
-2001-09-26 (bug fix) corrected potential deadlock in channels that do not
-provide a BlockModeProc (kupries, kogorman)
-
-2001-10-03  (new feature) WIN64 build support (hobbs)
-
-2001-10-03 (bug fix) correction in thread finalization (rbrunner)
-
-2001-10-04 (new feature) updated encodings with latest mappings from
-www.unicode.org (hobbs)
-
-2001-10-11 (bug fix) corrected cleanup of self-referential bytecodes at
-interpreter deletion (sofer, rbrunner)
-
-2001-10-16 (new feature) config support for MacOSX / Darwin (steffen)
-
-2001-10-16 (new feature, Mac) change in binary extension format from MachO
-bundles to standard .dylib dynamic libraries like on other unices.
-        *** POTENTIAL INCOMPATIBILITY ***
-
-2001-10-18 (bug fix) corrected off-by-one-day error in clock scan with
-relative months and years during swing hours. (lavana)
-
---- Released 8.3.4, October 19, 2001 --- See ChangeLog for details ---
-
-2001-08-21 (bug fix)[219184] overagressive compilation of [catch] (sofer)
-
-2001-08-22 (new feature)[227482] [dde request -binary] (hobbs)
-=> dde 1.2
-
-2001-08-30 (performance enhancement)[456668] fully qualified command names use
-cached Command for all namespaces, avoiding repeated lookups (sofer)
-
-2001-08-31 (performance enhancement) bytecompiled [list] (hobbs)
-
-2001-09-02 (bug fix)[403553] Add -Zl to VC++ compile line for tclStubLib to
-avoid any specific C-runtime library dependence. (gravereaux)
-
-2001-09-05 (new feature) restored support for Borland compiler (gravereaux)
-
-2001-09-05 (new feature)[TIP 49] Tcl_OutputBuffered API (schroedter, fellows)
-
-2001-09-07 (new feature) restored VC++ 5.0 compatibility (gravereaux)
-
-2001-09-10 (performance enhancement)[TIP 53,451441] [proc foo args {}] now
-compiles to 0 bytecodes (sofer)
-
-2001-09-13 (new feature)[TIP 56] Tcl_EvalTokensStandard API (sofer)
-
-2001-09-13 (new feature) Old ChangeLog entries => ChangeLog.1999 (hobbs)
-
-2001-09-17 (new feature) compiling with TCL_COMPILE_DEBUG now required to
-enable all compile and execution tracing (sofer)
-        *** POTENTIAL INCOMPATIBILITY ***
-
-2001-09-19 (bug fix)[411825] made TclNeedSpace UTF-8 aware (fellows)
-
-2001-09-19 (bug fix)[219166] overagressive compilation of "quoted" bodies of
-[for], [foreach], [if], and [while] (sofer)
-
-2001-09-19 (performance enhancement) bytecompiled [string match] (hobbs)
-
-2001-10-15 (new feature)[TIP 35] serial channel configuration: Win (schroedter)
-
-2001-11-06 (bug fix)[478856] loss of fileevents due to short reads (kupries)
-
-2001-11-06 (new feature) revitalized makefile.vc (gravereaux)
-
-2001-11-07 (new feature) Cygwin gcc support dropped.  Use mingw (dejong)
-        *** POTENTIAL INCOMPATIBILITY ***
-
-2001-11-07 (new feature) Support --include-dir= and --libdir= options to
-configure.  Store in tclConfig.sh as TCL_INCLUDE_SPEC and TCL_LIB_SPEC.
-(dejong)
-        *** POTENTIAL INCOMPATIBILITY ***
-
-2001-11-08 (new feature) Enable --enable-threads on FreeBSD (dejong)
-
-2001-11-08 (new feature) New make target 'make gdb' (dejong)
-
-2001-11-09 (bug fix)[480176] [global] mishandled varnames matching :* (porter)
-
-2001-11-12 (new feature)[TIP 22,33,45] new command [lset],
-[lindex] extended to accept multiple indices. (kenny, hobbs)
-
-2001-11-16 (new feature) new configure option --enable-langinfo=no.
-By default, nl_langinfo() is used on Unix to determine system encoding.
-Tcl's built-in system is used only if that fails, or configured with
---enable-langinfo=no. (hobbs, wagner)
-
-2001-11-19 (new feature)[TIP 62] A Tcl_VarTraceProc can now return Tcl_Obj *
-or a dynamic string as well as a static string to indicate an error (fellows)
-
-2001-11-19 (new feature)[TIP 73] Tcl_GetTime API (kenny)
-
-2001-11-19 (bug fix)[478847] overflows in [time] of >2**31 microseconds (kenny)
-
-2001-11-29 (performance enhancement) caching scheme added to [binary scan]
-(fellows)
-
-2001-12-05 (new feature) new algorithm for [array get] adds safety when read
-traces modify the array. (sofer)
-        *** POTENTIAL INCOMPATIBILITY ***
-
-2001-12-10 (bug fix)[490514] doc fixes (porter,english)
-
-2001-12-18 (new feature) removed unix/dltest/configure; unix/configure does
-all (dejong)
-
-2001-12-19 (new feature) New make target 'make shell' (dejong)
-
-2001-12-21 (new feature) MaxOSX / Darwin support (steffen)
-
-2001-12-28 (new feature) new command [memory onexit] replaces [checkmem] when
-compiled with TCL_MEM_DEBUG.  Added documentation. (porter)
-        *** POTENTIAL INCOMPATIBILITY ***
-
-2001-12-28 (bug fix) proper case in [auto_execok] use of $env(COMPSPEC) (hobbs)
-
-2002-01-05 (feature rewrite) Tcl_Main() rewritten and documentation improved.
-Interactive operation and event loop operation (via Tcl_SetMainLoop) now
-interleave cleanly.  Also more robust against strange happenings. (porter)
-
-2002-01-17 (bug fix)[504642] Tcl_Obj refCounts in [gets] (griffen,kupries)
-
-2002-01-21 (bug fix)[506297] infinite loop writing in iso2022-jap encoding
-(forssen,kupries)
-
-2002-01-24 (HTTP server bug workaround)[504508] leave the default port out
-of the Host: header value
-=> http 2.4.1 (hobbs)
-
-2002-01-25 (new feature)[496733] socket options -eofchar and -translation
-return read-only values (dejong)
-
-2002-01-28 (new feature) Old ChangeLog entries => ChangeLog.20900 (hobbs)
-
-2002-01-28 (performance enhancement) bytecompiled [regexp] for trivial cases
-that amount to string matching.  Also -nocase and --. (hobbs)
-
-2002-02-05 (bug fix) [http::error] called when [::error] intended
-=> http 2.4.2 (porter)
-
-2002-02-05 (bug fix)[465765] avoid zero-byte writes to STREAMs
-(talcott,kupries)
-
-2002-02-06 (performance enhancement) [regsub] special cases that map to
-[string map] detected. (hobbs)
-
-2002-02-06 (bug fix)[495213] [scan] accept 0x as prefix of base 16 value
-(hobbs)
-
-2002-02-10 (new feature)[TIP 32,79] Tcl_CreateObjTrace API (kenny)
-
-2002-02-12 (new feature) partial support for DJGPP Tcl on DOS (gravereaux)
-
-2002-02-14 (mem leak) Fixed leaking an empty Tcl_Obj when [gets $chan]
-errored out. (kupries, sofer)
-
-2002-02-15 (new feature)[TIP 72] support for 64-bit integer values on
-32-bit platforms and ability to work with >2GiB files.  Extends many
-commands.  See ChangeLog and TIP for details.
-	*** POTENTIAL INCOMPATIBILITY ***
-
-2002-02-22 (bug fix)[476537] Fix panic when loading shared library without
-proper use of stubs on platform without backlinking (porter)
-
-2002-02-22 (new feature)  64-bit support for xlc compiler on AIX-4 (hobbs)
-
-2002-02-22 (new feature)[521560] Removed limits on filename length and
-format [source]able through the Safe Base (hobbs)
-
-2002-02-22 (performance enhancement) optimized bytecodes for [if], [for],
-[while] and constant conditions (sofer)
-
-2002-02-22 (new feature)[TIP 76] [regsub] can now return result (fellows)
-
-2002-02-25 (bug fix)[495207] buffer overrun when closing ] left out of
-argument to [subst] (sofer, english)
-
-2002-02-25 (bug fix)[514392] [load] updated for Mac OS X 10.1 (steffen)
-
-2002-02-26 (bug fix) [info hostname] choked on names >31 characters (hobbs)
-
-2002-02-26 (new feature)[TIP 35] serial channel configuration: Unix
-(schroedter, hobbs)
-
-2002-02-25 (bug fix)[483575] [fconfigure ... -error] now no-op on Mac (kupries)
-
-2002-02-28 (performance enhancement)[458872] fully qualified command names use
-cached Command for all namespaces, avoiding repeated lookups (sofer)
-
- * (new feature)[TIP 27] completed CONST-ification of TCL APIs.
-Added compiler macro USE_NON_CONST to keep using those old API prototypes
-that present irreconcilable source incompatibilities with header files
-of prior Tcl releases.  Others will need to be reconciled.
-        *** POTENTIAL INCOMPATIBILITY ***
-
-2002-03-04 (bug fix)[474358, 218099, 219314, 524674] fixed several problems
-related to the handling of iso2022 text and finalization of escape-based
-encodings. (taguchi, takahashi, hobbs)
-
---- Released 8.4a4, March 5, 2002 --- See ChangeLog for details ---
-
-2002-03-06 (new feature)[TIP 80] expanded [lsearch] options (wilkason, fellows)
-
-2002-03-07 (new feature)[TIP 87] [interp recursionlimit] (trier)
-
-2002-03-08 (platform feature) mingw 1.1 build favored (dejong)
-
-2002-03-20 (new feature)[TIP 27] CONST-ified variable access functions (porter)
-
-2002-03-24 (bug fix)[511666,511658,523217,530960] expanded
-Tcl_FSMatchInDirectory to handle assorted [glob] bugs in VFS. (darley)
-        *** POTENTIAL INCOMPATIBILITY with prior 8.4a releases ***
-
-2002-03-25 (bug fix)[495726] stopped tcltest disabling of auto-loading (porter)
-
-2002-03-25 (bug fix)[495977] allow \n in test constraints (porter)
-
-2002-03-27 (platform support)[527941,533862] VC/winhelp/W9X (spjuth,
-gravereaux)
-
-2002-03-28 (bug fix)[219181] exception at level 0 issues (sofer)
-
-2002-03-28 (bug fix)[219362] command termination; Tcl_CreateTrace (knoll,sofer)
-
-2002-04-05 (bug fix)[536879] exceptions during variable subst (porter)
-
-2002-04-15 (bug fix)[497446,513983] tcltest syntax errors now raised (porter)
-	***POTENTIAL INCOMPATIBILITY with prior tcltest 2.0.* (8.4aX)***
-
-2002-04-17 (bug fix)[495660] [(save|restore)state] deprecated (porter)
-
-2002-04-17 (bug fix)[526524] escape-based encodings corrected (yamamoto, hobbs)
-
-2002-04-18 (bug fix)[542588] [expr] error msgs improved (ehrens, sofer)
-
-2002-04-18 (bug fix)[545325] [info level $level] now returns [namespace eval]
-as documented (suchenwirth,sofer)
-
-2002-04-19 (bug fix)[544727] export [mcload]; ns context of [mcmax] (porter)
-=> msgcat 1.2.3
-
-2002-04-22 (performance enhancement) threaded memory allocator (AOL, hobbs)
-
-2002-04-24 (new feature) TCLTK_NO_LIBRARY_TEXT_RESOURCES #define disables
-inclusion of tcl library code in resource fork on Mac.  (steffen)
-
-2002-05-21 (platform support) static libs on OSF (dejong)
-
-2002-05-24 (bug fix)[557878] set encoding on listening socket (staplin,
-kupries)
-
-2002-05-24 (new feature)[TIP 91] Tcl_Seek compatibility (fellows)
-
-2002-05-28 (bug fix)[545579] VFS [load] left temp file (darley)
-
-2002-05-28 (bug fix)[559376] plug timezone env leak on Windows (hobbs)
-
-2002-05-29 (performance enhancement) [string compare] optimized (hobbs,fellows)
-
-2002-05-31 (bug fix)[550534] plug interp leak in [pkg_mkIndex] (helmut)
-
-2002-05-31 (dead code)[474335,555635] removed all use of matherr() (english)
-        *** POTENTIAL INCOMPATIBILITY ***
-
-2002-06-04 (new feature)[TIP 85,521362] custom result match in tcltest
-(markus, porter)
-=> tcltest 2.1
-
-2002-06-06 (bug fix)[524352] encoding, threading, and environment issues on
-MacOSX (steffen)
-
-2002-06-06 (bug fix)[512214,558742,512214,461000] lazy initialization of
-tcltest constraints (porter)
-
-2002-06-07 (bug fix)[563122,564595] EOVERFLOW definitions (fellows)
-
-2002-06-11 (bug fix)[567386] [info locals] corrections (sofer)
-
-2002-06-14 (new feature)[TIP 102] [trace list] renamed [trace info] (fellows)
-
-2002-06-17 (new feature)[525522,525525] msgcat support for XPG4 locales;
-examination of LC_ALL, LC_MESSAGES environment variables (haible, porter)
-=> msgcat 1.3
-
-2002-06-17 (new feature)[565088] header files assume modern C compiler by
-default; older compilers may need configuration (english)
-        *** POTENTIAL INCOMPATIBILITY ***
-
-2002-06-17 (bug fix)[554068] [exec] argument quoting on Windows (darley)
-
-2002-06-17 (new feature)[TIP 62,462580] command execution traces (lavana)
-
-2002-06-19 (bug fix)[558324] regexp sets a linked variable (watson)
-
- * (performance enhancment) optimizations of bytecode execution (sofer)
-
-2002-06-21 (new feature)[TIP 99,562970] new [file link] command (darley)
-
-2002-06-24 (new feature)[TIP 101] new [tcltest::configure] command (porter)
-=> tcltest 2.2
-
-2002-06-25 (new feature) --enable-man-symlinks and --enable-man-compression
-options to configure (max)
-
-2002-06-26 (bug fix)[565880] [clock format] now respects locale (max)
-        *** POTENTIAL INCOMPATIBILITY ***
-
-2002-07-03 (bug fix)[577015] [catch] catches even compile errors (sofer)
-
---- Released 8.4b1, July 5, 2002 --- See ChangeLog for details ---
-
-2002-07-08 (bug fix) restored compatibility of [viewFile] in tcltest (porter)
-
-2002-07-11 (bug fix) [file normalize] returns long form on Win 95/98/ME (darley)
-
-2002-07-15 (performance enhancment) variable operations rewritten to store
-	and use cached Var pointers (sofer)
-
-2002-07-22 (bug fix)[218000] Inf and Nan are floating-point values (fellows)
-
-2002-07-23 (platform support)[219220] 64-bit compile on IRIX (dejong)
-
-2002-07-25 (bug fix)[219218] return codes in background errors (english)
-
-2002-07-28 (bug fix)[582522] alias fires exec traces (sofer)
-
-2002-07-29 (bug fix)[578363] regexp (fellows,pvgoran)
-
-2002-07-30 (bug fix)[584603] WriteChars infinite loop non-UTF-8 string (kupries)
-
-2002-08-04 (new feature)[584051,580433,585105,582429][TIP 27] Tcl interfaces
-	are now fully CONST-ified.  Use the symbols USE_NON_CONST or
-	USE_COMPAT_CONST to select interfaces with fewer changes.
-        *** POTENTIAL INCOMPATIBILITY ***
-
-2002-08-05 (bug fix)[589859] tcltest setup and cleanup scripts skipped when
-	test body is skipped (porter)
-	=> tcltest 2.2
-
-2002-08-07 (bug fix)[587488] mem leak with USE_THREAD_ALLOC (sofer,sass)
-
-2002-08-07 (feature enhancement)[584794,584650,472576] boolean values
-	are no longer always re-parsed from string. (sofer)
-
-Many internal bugs fixed.
-Considerable cleanup of the test suite.
-
---- Released 8.4b2, August 9, 2002 --- See ChangeLog for details ---
-
-2002-08-20 (new feature) --enable-memdebug configure option (kupries)
-
-2002-08-23 (bug fix)[597936] mem leak with USE_THREAD_ALLOC (sofer,zoran)
-
-2002-08-26 (bug fix)[599788] segfault in compiler (sofer,wilkason)
-
-2002-08-28 (bug fix)[414910] avoid mem leaks accessing environment variables
-	on Windows (welton,gravereaux)
-
-2002-08-31 (platform support)[TIP 108] Mac OS X port (steffen,ingham)
-
-2002-09-02 (platfrom support) 64-bit compile on HP-11 (martin)
-
---- Released 8.4.0, September 10, 2002 --- See ChangeLog for details ---
-
-2002-09-18 (platform support) Updated support for compiling with Cygwin and
-either mingw or gcc. (khan, howell, dejong)
-
-2002-09-22 (bug fix)[612786, 611922] Corrected [puts -nonewline] within
-test bodies. Also corrected reporting of body return code.  Updated tcltest
-to v2.2.1.
-
-2002-09-24 (bug fix)[613117] More robust 64-bit wide integer value
-detection (fellows)
-
-2002-09-26 (bug fix) correct overeager optimization of noop proc to handle
-the precompiled case. (sofer, hobbs)
-
-2002-09-26 (bug fix)[615115] removed extraneous spaces in koi8-u.enc that
-confused encoding reader.
-
-2002-09-29 (bug fix)[219355] Added proper exiting conditions using Win32
-console signals.  This handles the existing lack of a Ctrl+C exit to call
-exit handlers when built for thread support.  Also, properly handles exits
-from other conditions such as CTRL_CLOSE_EVENT, CTRL_LOGOFF_EVENT, and
-CTRL_SHUTDOWN_EVENT signals.  In all cases, exit handlers will be called.
-(gravereaux)
-
-2002-09-30 (bug fix) improve the checking for bad regular expressions
-during regexp compilation.  Resultant compiles were correct, but much
-slower than necessary. (hobbs)
-
-2002-10-01 (bug fix) fix precompiled locals to support 8.3 precompiled
-code. (hobbs)
-
-2002-10-09 (bug fix)[620735] Added code to set an exit handler on Windows
-that terminates the thread that calibrates the performance counter, so that
-the thread won't outlive unloading the Tcl DLL. (kenny)
-
-2002-10-09 (build support) all --enable-symbols to take the enhanced
-options yes|no|mem|compile|all. (hobbs)
-
-2002-10-10 (build support) enable USE_THREAD_ALLOC (new threaded allocator)
-by default on Windows. (hobbs, gravereaux)
-
-2002-10-14 (bug fix)[623269] correct possible mem leak in
-Tcl_PutEnv. (brouwers)
-
-2002-10-15 (bug fix)[615043] fix in execution traces with idle tasks
-firing. (lavana)
-
-2002-10-15 (platform support) Correct AIX-5 ppc and 4/5 64-bit build flags.
-Correct HP 11 64-bit gcc building. (martin, hobbs)
-
-2002-10-17 (bug fix)[624755] Fixed code that check for proper # of args to
-[array names] (porter)
-
-2002-10-18 (feature enhancement)[625453] Added support for broadcasting
-changes to the registry Environment on Windows.  Updated registry package
-to v1.1. (hobbs)
-
-2002-10-22 (platform support)[624509] On macosx, add embedded framework
-dirs to tcl_pkgPath: @executable_path/../Frameworks and
-@executable_path/../PrivateFrameworks (if they exist), as well as the dirs
-in DYLD_FRAMEWORK_PATH (if set). (steffen)
-
---- Released 8.4.1, October 22, 2002 --- See ChangeLog for details ---
-
-2002-10-28 (bug fix)[627660] [package unknown] chaining for platform specifics
-
-2002-10-29 (bug fix)[627546] verbose [load] (dyld) error mesages on MacOSX
-
-2002-11-01 (bug fix) [package provide registry] consistent versions.
-
-2002-11-06 (bug fix)[582039] missing ar program -> configuration error
-
-2002-11-06 (feature enhancement) added new TclInThreadExit function to
-test for thread exit vs whole process exit condition. The TclInExit
-function now correctly returns 1 during Tcl_Finalize processing.
-        *** POTENTIAL INCOMPATIBILITY ***
-
-2002-11-13 (bug fix)[615043] some execution traces were not firing
-
-2002-11-18 (bug fix)[634856] multiple signs no longer accepted as valid integer
-[string is integer ++1] => 0
-        *** POTENTIAL INCOMPATIBILITY ***
-
-2002-11-26 (bug fix)[593810,597924] clean exit of channel worker threads on Win
-
-2002-11-28 (new feature) `make valgrind` target
-
-2002-12-03 (bug fix)[615304] repeated load/unload of Tcl now possible
-
-2002-12-11 (bug fix)[647307] negative return codes now propagated by procs
-
-2002-12-11 (bug fix)[648441] syntax error in [expr 0x] now detected.
-
-2003-01-07 (bug fix)[633204] [catch {return}] => 2 (not 0)
-
-2003-01-09 (bug fix)[634151] [file (a|m)time $nonASCIIpath $time] now works
-
-2003-01-16 (bug fix) dde eval with {} service name does not crash.
-=> dde 1.2.1
-
-2003-01-16 (bug fix)[635200,655645,615043,571385] many command trace fixes
-
-2003-01-31 (bug fix)[675614,678415,676978] tcltest conflicts in cleanup
-and -outfile; also failure in space-containing path; also missing [close]
-=> tcltest 2.2.2
-
-2003-02-01 (bug fix)[670042] corrected [info loaded {}] for static
-packages in multiple interps.
-
-2003-02-01 (bug fix)[675356] [clock clicks {}]; [clock clicks -] - syntax errs
-
-2003-02-01 (bug fix)[656660] MT-safety for [clock format]
-
-2003-02-03 (bug fix)[651271] command rename traces get fully-qualified names
-        *** POTENTIAL INCOMPATIBILITY ***
-
-2003-02-07 (performance improvement) [glob] on Windows is 2.5 times faster
-
-2003-02-07 (feature change) lack of Cygwin support indicated by config error
-
-2003-02-11 (bug fix)[684744] [info complete] stopped by \x00
-
-2003-02-11 (bug fix)[685445] [glob -types l] missed broken symlinks on Unix
-
-2003-02-11 (bug fix) [lsearch -regexp $a $a] doesn't crash
-
-2003-02-13 (bug fix)[685926] accept non-ASCII7 for tcl_platform(user) on Win
-
-2003-02-15 (bug fix)[673714] stop crash when Tcl_DeleteEvents deletes last
-
-2003-02-15 (bug fix)[681841] parser missed some missing ] syntax errors
-
-2003-02-17 (bug fix)[684756] memory leak during command rename plugged
-
-2003-02-18 (bug fix)[689100] reduced per-thread memory overhead
-
-2003-02-18 (platform support)[651811] use xnet library on HP 11 (64 bit).
-
-2003-02-20 (bug fix)[Patch 689341] correct jis round-trip encoding
-
-2003-02-20 (bug fix)[689835] stop MacOSX hang trying to read a write-only pipe
-
-2003-02-07 (performance improvement) [tclPkgUnknown]: fewer vfs calls
-
-2003-02-18 (platform support) cut and splice procs for file channels on Mac
-
-2003-02-21 (bug fix)[690774] [binary scan] failed on some wide ints
-
-2003-02-22 (bug fix)[571002] plugged data leak during thread exit
-
-2003-02-25 (feature change) [pkg_mkIndex -load]: case-insensitive match
-        *** POTENTIAL INCOMPATIBILITY ***
-
-2003-02-27 (bug fix)[694232] stop [lsearch -start 0 {} x] segfault
-
---- Released 8.4.2, March 3, 2003 --- See ChangeLog for details ---
-
-2003-03-06 (bug fix)[699042] Correct case-insensitive unicode string
-comparison in Tcl_UniCharNcasecmp
-
-2003-03-11 (bug fix) Corrected loading of tclpip8x.dll on Win9x
-
-2003-03-12 (bug fix)[702383] Corrected parsing of interp create --
-
-2003-03-12 (bug fix)[685106] Correct Tcl_SubstObj handling of \x00 bytes
-
-2003-03-14 (bug fix)[702622 699060] Correct wide int issues in 'format'
-
-2003-03-14 (bug fix)[698146] Remove assumption that file times and longs
-are the same size.
-
-2003-03-18 (bug fix)[697862] Allow Tcl to differentiate between reparse
-points which are symlinks and mounted drives on Windows
-
-2003-03-19 (bug fix)[705406] Bad command count on TCL_OUT_LINE_COMPILE
-
-2003-03-20 (bug fix)[707174] Store pointers to notifier funcs in a struct
-to work around some platform linker issues
-
-2003-03-22 (bug fix)[708218] Load correct (non-)debug dll for dde or
-registry
-
-2003-03-24 (bug fix)[631741 696893] Fixing ObjMakeUpvar's lookup algorithm
-for the created local variable
-
-2003-04-07 (bug fix)[713562] Make sure that tclWideIntType is defined and
-somewhat sensible everywhere
-
-2003-04-07 (bug fix)[711371] Corrected string limits of arguments
-interpolated in error messages for 'if'
-
-2003-04-11 (bug fix)[718878] Corrected inconsistent results of
-[string is integer] observed on systems where sizeof(long) != sizeof(int)
-
-2003-04-12 (bug fix) Substantial changes to the Windows clock synch
-phase-locked loop in a quest for improved loop stability
-
-2003-04-16 [713562] Made changes so that the "wideInt" Tcl_ObjType is
-defined on all platforms, even those where TCL_WIDE_INT_IS_LONG is defined.
-Also made the Tcl_Value struct have a wideValue field on all platforms.
-Potential incompatibility for TCL_WIDE_INT_IS_LONG platforms because that
-struct changes size.
-        *** POTENTIAL INCOMPATIBILITY ***
-
-2003-04-25 (bug fix)[727271] Catch any errors returned by the Windows
-functions handling TLS ASAP instead of waiting to get some mysterious crash
-later on due to bogus pointers.
-
-2003-04-29 (bug fix) Correct 'glob -path {[tcl]} *', where leading
-special character instead lists files in '/'.  Bug only occurs on Windows
-where '\' is also a directory separator.
-
-2003-05-09 (bug fix)[731754] Fixed memory leak in threaded allocator on
-Windows caused by treating cachePtr as a TLS index
-
-2003-05-10 (bug fix)[710642] Ensure cd is thread-safe
-
-2003-05-10 (bug fix)[718002] Correct mem leak on closing a Windows serial
-port
-
-2003-05-10 (bug fix)[714106] Prevent string repeat crash when overflow
-sizes were given (throws error).
-
-2003-05-13 (feature enhancement)[736774] Use new versioned bundle resource
-API to get tcl runtime library for TCL_VERSION on Mac OS X.
-
-2003-05-13 (bug fix)[711232] Worked around the issue of realpath() not
-being thread-safe on Mac OS X by defining NO_REALPATH for threaded builds
-on Mac OS X.
-
-2003-05-14 (bug fix)[557030] Correct handling of the gb2312 encoding by
-making it an alias of the euc-cn encoding and creating a gb2312-raw
-encoding for the original.  Most uses of gb2312 really mean euc-cn.
-
-2003-05-14 (bug fix)[736421] Corrected another putenv() copy behavior
-problem when compiling on Windows and using Microsoft's runtime.
-
---- Released 8.4.3, May 20, 2003 --- See ChangeLog for details ---
-
-2003-05-23 (bug fix)[726018] reverted internals change to the
-'cmdName' Tcl_ObjType that broke several extensions (TclBlend, e4graph...)
-in the 8.4.3 release.
-
-2003-06-10 (bug fix)[495830] stop eval of bytecode in deleted interp.
-
-2003-06-17 (bug fix) corrections to regexp when matching emtpy string.
-
-2003-06-25 (bug fix)[748957] -*ieee compiler flags for Tru64 builds.
-
-2003-07-11 (bug fix) [pkg_mkIndex] indexes provided packages, not indexed ones.
-
-2003-07-15 (feature enhancement) MacOSX build system rewrite.
-
-2003-07-15 (bug fix)[771613] corrected segfault in [if] (buffer overflow)
-
-2003-07-16 (bug fix)[756791] corrected assumption that Tcl_Free == free
-
-2003-07-16 (feature enhancement) -DTCL_UTF_MAX=6 compile option forces
-internal UCS-4 representation of Unicode (default is recommended UCS-2).
-
-2003-07-16 (bug fix)[767578] 64-bit corrections in thread notifier.
-
-2003-07-16 (bug fix)[759607] Safe Base tests normalized paths.
-
-2003-07-16 (feature enhancement)[Patch 679315] improved Cygwin path support
-
-2003-07-18 (bug fix)[706359] corrected broken -output option of [tcltest::test]
-=> tcltest 2.4.4
-
-2003-07-18 (bug fix)[753315] MT-safety of VFS records.
-
-2003-07-18 (bug fix)[759888] support for user:pass in URL by [http::geturl]
-=> http 2.4.4
-
-Improved documentation, new tests, and some code cleanup.
-[655300, 720634, 735364, 748700, 756112, 756744, 756951, 758488, 760768,
-763312, 769895, 771539, 771840, 771947, 771949, 772333]
-
---- Released 8.4.4, July 22, 2003 --- See ChangeLog for details ---
-
-2003-07-23 (bug fix)[775976] fix registry compilation for VC7.
-
-2003-08-05 (enhancement)[781585] Use Tcl_ResetResult in bytecodes to
-prevent potential costly Tcl_Obj duplication.
-
-2003-08-06 (bug fix)[781609] prevent non-Windows platforms from trying to
-use the registry package inside msgcat.
-
-2003-08-27 (bug fix)[411825] Fix TclNeedSpace to handle non-breaking space
-(\u00A0) and backslash escapes correctly.
-
-2003-09-01 (bug fix)[788780] Fix thread-safety issues in filesystem records.
-
-2003-09-19 (bug fix)[804681] Protect ::errorInfo and ::errorCode traces
-from corrupting stack.
-
-2003-09-23 (bug fix)[218871] Fix handling of glob-sensitive chars in
-auto_load and auto_import.
-
-2003-10-03 (bug fix)[811483] Fixed refcount management for command and
-execution traces.
-
-2003-10-04 (bug fix)[789040] Fixed exec command.com error for Win9x.
-
-2003-10-06 (bug fix)[767834, 813273] Fixed volumerelative file
-normalization and 'file join' inconsistencies.
-
-2003-10-08 (bug fix)[769812] Fix Tcl_NumUtfChars string length calculation
-when negative parameter is given.
-
-2003-10-22 (bug fix)[800106] Handle VFS mountpoints inside glob'd dirs.
-
-2003-10-22 (bug fix)[599468] Watch for FD_CLOSE too on Windows when
-asked for writable events by the generic layer.
-
-2003-10-23 (bug fix)[813606] Detect OS X pipes correctly.
-
-2003-11-05 (bug fix)[832657] Allow .. in libpath initialization.
-
-2003-11-11 (bug fix) Improve AIX-64 build configuration.
-
-2003-11-17 (bug fix)[230589, 504785, 505048, 703709, 840258] fixes to
-various odd regexp "can't happen" bugs.
-
---- Released 8.4.5, November 20, 2003 --- See ChangeLog for details ---
-
-2003-12-02 (bug fix)[851747] object sharing fix in [binary scan]
-
-2003-12-09 (platform support)[852369] update errno usage for recent glibc
-
-2003-12-12 (bug fix)[858937] fix for [file normalize ~nobody]
-
-2003-12-17 (bug fix)[839519] fixed two memory leaks (vasiljevic)
-
-2004-01-09 (bug fix)[873311] fixed infinite loop in TclFinalizeFilesystem
-
-2004-02-02 (bug fix)[405995] Tcl_Ungets buffer filling fix
-
-2004-02-04 (bug fix)[833910] tcltest command line option parsing error
-=> tcltest 2.4.5
-
-2004-02-04 (bug fix)[833637] code error in tcltest -preservecore operation
-
-2004-02-12 (feature enhancement) update HP-11 build libs setup
-
-2004-02-17 (bug fix)[849514,859251] corrected [file normailze] of $link/..
-
-2004-02-17 (bug fix)[772288] Unix std channels forced to exist at startup.
-
-2004-02-17 (new default) tcltest::configure -verbose {body error}
-
-2004-02-19 (bug fix) init.tcl search path with unusual --libdir (samson)
-
-2004-02-25 (bug fix)[554068] stopped broken [exec] quoting of { (gravereaux)
-
-2004-02-25 (bug fix)[888777] plugged memory leak with long host names (cassoff)
-
-2004-03-01 (bug fix)[462580] corrected level interpretation of Tcl_CreateTrace
-
-2004-03-01 (platform support)[218561] Allow 64-bit configure on IRIX64-6.5*
-
---- Released 8.4.6, March 1, 2004 --- See ChangeLog for details ---
-
-Changes to 8.5a1 include all changes to the 8.4 line through 8.4.6,
-plus the following, which focuses on the high-level feature changes
-in this changeset (new minor version) rather than bug fixes:
-
- * refactored IO code to split FS path code into generic/tclPathObj.c
-  and generic/tclFileSystem.h
-
- * refactored trace code into generic/tclTrace.c
-
- * configure scripts now require autoconf 2.57 for regeneration
-
- * updated runtime library scripts to use newer Tcl code features
-   (like replacing regsub with string map)
-
- * improve robustness of tcltest test suite across environments
-
- * changed the bytecode evaluation-stack addressing mode, from array-style
-   to pointer-style; the catch stack and evaluation stack are now
-   contiguous in memory
-
- * switch command is now byte-compiled
-
- * enhanced checking in 'file' command for Windows NT file permissions
-
- * [TIP #57] new 'lassign' command (adopted from TclX)
-
- * [TIP #75] switch -regexp now provides submatch info
-
- * [TIP #90] extended 'catch' and 'return' to enable creation of procs
-   that are a true replacement for 'return'
-
- * [TIP #100] new 'unload' command (can unload DLLs loaded via 'load',
-   requires the extension writer to support it)
-
- * [TIP #111] new 'dict' command.  Several commands have been updated
-   to handle the list form of dicts implicitly at the C level where
-   only lists were previously accepted
-
- * [TIP #112] 'namespace ensemble' command addition allows for ensembles
-   that build on the namespace abstraction
-
- * [TIP #118] file attributes -readonly option for unices that support
-   chflags(), support Mac Classic attribute options on OS X, add
-   -rsrclength for OS X, enhance file copy on OS X to copy finder
-   attributes and resource forks transparently
-
- * [TIP #120] enable dde in safe interpreters
- * [TIP #130] enable unique dde server names on Windows
- * [TIP #135] change dde servername -exact option to -force
-=> dde 1.3
-
- * [TIP #121] new Tcl_SetExitProc C API to control application shutdown
-
- * [TIP #123] expr ** exponentiation operator
-
- * [TIP #124] 'clock clicks -milliseconds' now returns a wide integer and a
-   new 'clock clicks -microseconds' returns a wide integer, representing
-   the number of microseconds, both since the Posix epoch
-
- * [TIP #127] added 'lsearch -index' option
-
- * [TIP #136] added 'lrepeat' command
-
- * [TIP #137/151] Add -encoding option to 'source' command and main tclsh
-   executable.
-     *** POTENTIAL INCOMPATIBILITY ***
-   For Tcl embedders that build on Tcl_Main() and make use of Tcl_Main's
-   former ability to pass a leading "-encoding" option to interactive shell
-   operations, this will now be consumed by Tcl.
-
- * [TIP #138] New TCL_HASH_KEY_SYSTEM_HASH option for Tcl hash tables
-
- * [TIP #139] documented portions of Tcl's namespace C APIs
-
- * [TIP #148] correct [list]-quoting of the '#' character
-     *** POTENTIAL INCOMPATIBILITY ***
-   For scripts that assume a particular (buggy) string rep for lists.
-
- * [TIP #156] add "root locale" to msgcat
-=> msgcat 1.4
-
- * [TIP #157] leading {expand} syntax on words to cause argument expansion.
-   This is a safer/cleaner alternative to the use of 'eval'.
-
---- Released 8.5a1, March 3, 2004 --- See ChangeLog for details ---
-
-2004-03-04 (new feature) registry package is [unload]able (thoyts)
-=> registry 1.1.4
-
-2004-03-08 (bug fix)[910525] [glob -path] in root directory (darley)
-
-2004-03-12 (new feature)[TIP 163] [dict merge] (english, fellows)
-
-2004-03-18 (platform support) support for Mac Classic removed (steffen)
-
-2004-03-28 (bug fix)[925121] corrected segfault in bc compiler (sofer)
-
-2004-03-30 (bug fix)[495830,729692] bytecode execution checks
-each command/interp validity before executing. (sofer)
-
-2004-03-31 (bug fix)[811457] support translation to "" (porter)
-2004-03-31 (bug fix)[811461] ignore locales with no "language" part (porter)
-=> msgcat 1.4.1
-
-2004-04-01 (bug fix) make [glob -type d -dir . *] work across VFS boundary
-
-2004-04-06 (clean up) refactored Tcl header file #include order.  Might
-create need for changes in extensions that #include private headers.
-Changed source code files should work with older Tcl as well.  See ChangeLog.
-     *** POTENTIAL INCOMPATIBILITY ***
-
-2004-04-07 (bug fix)[920667] install into any Unicode path on Win (hobbs)
-
-2004-04-07 (platform support) properly substitute more values in Windows
-tclConfig.sh (hobbs)
-
-2004-04-23 (bug fix)[930851] reset channel EOF when eofchar changes (kupries)
-
-2004-04-28 (bug fix)[600812][TIP 184] [upvar 0 scalar array(foo)] raises error
-
-2004-05-03 (bug fix)[947070] stack overflow prevention on Win (kenny)
-
-2004-05-03 (bug fix)[868853] fix leak in [fconfigure $serial -xchar] (cassoff)
-
-2004-05 (bug fix)[928353,929892,928808,947440,948177] test fixes: OSX (abner)
-
-2004-05-05 (bug fix)[794839] socket connect error -> r/w fileevents
-(gravereaux)
-
-2004-05-07 (bug fix)[949905] corrected utf-8 encoding of \u0000 on I/O (max)
-
-2004-05-13 (new feature)[TIP 129] [binary scan tnmrRqQ] (markus, fellows)
-
-2004-05-13 (new feature)[TIP 142] [interp limit] (fellows)
-
-2004-05-14 (bug fix)[940278,922848] [clock] notices $::env(TZ) changes,
-gmt works on all platforms. (kenny, welton, glessner)
-
-2004-05-16 (feature rewrite) bytecode execution of {expand} changed
-        *** POTENTIAL INCOMPATIBILITY with prior 8.5a releases ***
-
-2004-05-18 (platform support) makefile.vc now generates tclConfig.sh (thoyts)
-
-2004-05-18 (bug fix)[500285,500389,852944] [clock %G %V] ISO8601 week numbers
-(kenny)
-
-2004-05-22 (bug fix)[735335,736729] variable name resolution error (sofer)
-
-2004-05-24 (bug fix) support for non-WIDE_INT aware math functions (hobbs)
-
-2004-05-25 (new feature) [http::config -urlencoding] (hobbs)
-=> http 2.5.0
-
-2004-05-26 (bug fix)[960926] file count doubled when -singleproc 1 (porter)
-=> tcltest 2.2.6
-
-2004-05-26 (bug fix)[874058] improved build configuration on 64-bit systems.
-Corrects Tcl_StatBuf definition issues.  (hobbs)
-
-2004-05-30 (platform support) Win: allow signed short exit codes (gravereaux)
-
-2004-06-05 (bug fix)[976722] hi-res clock fixes: Win
-(godfrey, suchenwirth, kenny)
-2004-06-10 (bug fix)[932314] bad return values from Tcl_FSChdir() (vasiljevic)
-
-2004-06-18 (platform support) regonize more unix locales (huang)
-
-2004-06-18 (bug fix) prevent stack overflow from long free() chains (fellows)
-
-2004-06-21 (platform support) exceptions w/ gcc -O3 on Win (dejong)
-
-2004-06-23 (feature rewrite)[976496] thread local storage done with hash
-tables to avoid system limits (mistachkin)
-
-2004-06-29 (bug fix)[981733] SafeBase global pollution (fellows)
-
-2004-06-30 (new feature)[TIP 188] [string is wideinteger] (kenny)
-
-2004-07-02 (new feature)[TIP 202] pipe redirection 2>@1 (hobbs)
-
-2004-07-03 (bug fix)[908375] round() wide integer support (lavana, sofer)
-
-2004-07-07 (bug fix)[458361] shimmer of single-word scripts suppressed (sofer)
-
-2004-07-15 (bug fix)[770053] crash in thread finalize of notifier (vasiljevic)
-
-2004-07-15 (bug fix)[990453] plug mutex leaks on reinit
-(mistachkin, vasiljevic)
-
-2004-07-16 (bug fix)[990500] clean exit of notifier thread
-(mistachkin, kupries)
-
-2004-07-19 (bug fix)[987967] improved self-init of mutexes on Win (vasiljevic)
-
-2004-07-20 (bug fix) pure Darwin/CFLite support (steffen)
-
-2004-07-20 (bug fix)[736426] plug leaky allocator reinit (mistachkin, kenny)
-
-2004-07-30 (bug fix)[999084] no deadlock in re-entrant Tcl_Finalize (porter)
-
-2004-08-02 (new feature)[TIP 207] [interp invokehidden -namespace] (porter)
-
-2004-08-10 (bug fix) thread IDs on 64-bit systems (ratcliff,vasiljevic)
-
-2004-08-13 (bug fix) avoid malicious code acceptance by [mclocale] (porter)
-=> msgcat 1.3.3
-
-2004-08-16 (bug fix)[1008314] Tcl_SetVar TCL_LIST_ELEMENT (sofer,porter)
-
-2004-08-18 (new feature)[TIP 173,209] complete [clock] rewrite (kenny)
-	*** POTENTIAL INCOMPATIBILITY ***
-
-2004-08-18 (new feature)[TIP 189] package loading for Tcl Modules (kupries)
-
-2004-08-19 (bug fix)[1011860] [scan %ld] fix on LP64 (fellows,porter)
-
-2004-08-23 (bug fix)[695441] extend [tcl_findLibrary] search path to include
-		$::auto_path and [pkgconfig get scriptdir,runtime] (porter)
-
-2004-08-27 (platform support) TCL_MODULE_PATH values for Mac OSX (steffen)
-
-2004-08-27 (bug fix)[1017022] recognize imported ensembles (fellows)
-
-2004-08-30 (bug fix) [string map $x $x] crash (fellows)
-
-2004-09-01 (bug fix)[1020445] WIN64 support (hobbs)
-
-2004-09-03 (bug fix)[1020538] crash in [file copy] (violi,fellows)
-
-2004-09-07 (bug fix)[1016167] [after] overwrites its imports (kenny)
-
-2004-09-08 (bug fix) fixed [clock format 0 -format %k] (kenny)
-
-2004-09-09 (bug fix)[560297] fixed broken [namespace forget] logic (porter)
-
-2004-09-09 (bug fix)[1017299] fixed [namespace import] cycle prevention
-(porter)
-
-2004-09-10 (performance) $x[set x {}] is now fast [K $x [set x {}]] (sofer)
-
-2004-09-10 (bug fix)[868489] better control over int <-> wideInt
-(fellows,kenny)
-
-2004-09-10 (bug fix)[1025359] POSIX errorCode from wide seeks (kupries,fellows)
-
-2004-09-10 (bug fix)[707104,1026493] fix [rename] of [interp alias] (porter)
-
-2004-09-18 (bug fix)[868467] fix [expr 5>>32] => 0, not 5 (hintermayer,fellows)
-
-2004-09-21 (bug fix) consistent errorinfo from [namespace eval x error foo bar]
-		and [namespace eval c {error foo bar}] (porter)
-
-2004-09-22 (feature change) syntax errors not reported at compile time;
-		deferred to runtime.  Support [return -errorline]. (porter)
-
-2004-09-23 (bug fix)[1016726] fix `make clean` in static config
-(leitgeb,dejong)
-
-2004-09-22 (feature change) report all compile errors at runtime (porter)
-
-2004-09-29 (bug fix)[1036649] syntax error in [subst] => buffer overflow
-(sofer)
-
-2004-09-30 (bug fix)[1038021] save/restore error state: var traces (porter)
-
-2004-10-01 (performance) stackframe level values in internal reps (fellows)
-
-2004-10-01 (feature change)[1037235] auto-create [dict] key paths (fellows)
-
-2004-10-04 (bug fix)[884830] eq and ne parse in expr (fellows)
-
-2004-10-05 (reform) errorInfo, errorCode management (porter)
-	*** POTENTIAL INCOMPATIBILITY for traces on those vars ***
-
-2004-10-06 (feature change)[1041072] re-bless and enhance Tcl_AppendResult
-(dkf)
-
-2004-10-06 (reform) more robust interp result appends (porter)
-=> dde 1.3.1
-=> registry 1.1.5
-
-2004-10-06 (reform) re-write of [glob] guts (fellows)
-
-2004-10-07 (reform)[925620] improved platform split of VFS code (darley)
-
-2004-10-08 (new feature)[TIP 201] "in" and "ni" expr operators (fellows)
-
-2004-10-08 (new feature)[TIP 212] [dict update]; [dict with] (fellows)
-
-2004-10-08 (bug fix)[954263] case insensitive [file exec] for Win
-(hobbs,darley)
-
-2004-10-14 (performance) [info commands/globals/procs/vars $pattern] faster
-                when $pattern is trivial (fellows)
-
-2004-10-14 (new feature)[TIP 217] [lsort -indices] (salsman,fellows)
-
-2004-10-24 (reform) replaced bit flag values with macros for Var handling
-	*** POTENTIAL INCOMPATIBILITY for accesses to Var internals ***
-
-2004-10-26 (new feature)[1054370] install msgcat, http, tcltest as TM's
-(porter)
-
-2004-10-26 (bug fix)[767676] negative PIDs with pipes (giese,gravereaux)
-
-2004-10-27 (bug fix)[731778] stop critical section leaks
-(mistachkin,gravereaux)
-
-2004-10-27 (bug fix)[926088] -load option to find tested packages (gravereaux)
-
-2004-10-28 (bug fix)[1030548] restore the --enable-symbols --enable-threads
-build on Win (mistachkin,kenny,kupries)
-
-2004-10-29 (bug fix)[1055673] fix command line syntax error message (porter)
-=> tcltest 2.2.7
-
-2004-10-30 (bug fix)[926106] fix [file mtime] DST anomaly (kenny)
-
-2004-10-31 (bug fix)[1057461] fix [info globals ::varName] (fellows)
-
-2004-11-02 (bug fix)[761471] fix [expr {NaN == NaN}] (sofer)
-
-2004-11-02 (bug fix)[1017151] misleading errorInfo after tests (seeger,porter)
-
-2004-11-03 (bug fix)[527164] preserve errorinfo from var traces (porter)
-
-2004-11-08 (bug fix){947693] Made -blocking option of channel during [close]
-consistent on Windows with Unix (gravereaux)
-	*** POTENTIAL INCOMPATIBILITY ***
-
-2004-11-11 (bug fix)[1034337] recursive file delete, MacOSX (steffen)
-
-2004-11-12 (new feature)[TIP 221] [interp bgerror] (porter)
-
-2004-11-12 (new feature)[TIP 226] Tcl_(Save|Restore|Discard)InterpState
-(porter)
-
-2004-11-12 (new feature)[TIP 227] Tcl_(Get|Set)ReturnOptions (porter)
-
-2004-11-12 (bug fix)[1004065] stop crash when TCL_UTF_MAX==6 (hobbs,porter)
-
-2004-11-15 (bug fix)[10653678] [trace variable],[trace remove] interop (porter)
-
-2004-11-16 (bug fix)[1067709] crash in [fconfigure -ttycontrol] (hobbs)
-
-2004-11-18 (new feature) configure options --enable-man-suffix (max)
-
-2004-11-22 (bug fix)[1030465] Improve HAVE_TYPE_OFF64_T check (dejong)
-
-2004-11-22 (bug fix)[1043129] Fixed the treatment of backslashes in file
-join on Windows (darley)
-
-2004-11-22 (bug fix)[976438] Move init.tcl search path construction to
-tclInit (porter)
-
-2004-11-24 (bug fix)[1072654] Fixed segfault in info vars trivial
-matching branch (new in 8.4.8) (porter)
-
-2004-11-24 (bug fix)[1001325, 1071701] Fixed readdir_r detection and usage
-(dejong, kenny, porter)
-
-2004-11-24 (bug fix)[1071807] Fixed all uses of 'select' to use standard
-macros rather than older bit-whacking style (kenny)
-
-2004-11-26 (bug fix)[1073524] Simplify the code to check for correctness of
-strstr, strtoul and strtod on unix (fellows)
-
-2004-11-26 (bug fix)[1072136] Remove file normalize on tcl_findLibrary
-search path uniqification added in 8.4.8 (porter)
-
-2004-11-30 (bug fix)[976520] Rework startup/initialization of the Tcl
-library, encoding search initialization, and Tcl_FindExecutable structure.
-[tclInit] no longer driven by the value of $::tcl_libPath (TCLLIBPATH).
-(porter)
-	*** POTENTIAL INCOMPATIBILITY : makes encoding names case sensitive
-	    on Windows, where they have been case insensitive ***
-
-2004-12-02 (bug fix)[1074671] Ensure tilde paths are not returned specially
-by 'glob' (darley)
-
-Doc improvements [759545,926590,935853,1017072,1018486,1022527,1027849,
-	1032243,1047928,1048005,1058446,1062647,1065732,1073334,etc.]
-Test suite expansion [1036649,1001997,etc.]
-
---- Released 8.5a2, December 7, 2004 --- See ChangeLog for details ---
-
-2004-12-13 (bug fix)[1083082] encoding memory leaks (ade,porter)
-
-2004-12-13 (bug fix)[1082349] restored C++ extension support (porter)
-
-2004-12-14 (bug fix)[1081541] workaround automake-ism "$U" (porter)
-
-2004-12-15 (new feature) CallFrames on execution, not C, stack (sofer)
-
-2004-12-16 (bug fix)[1085023] [interp limit] support in [vwait], etc. (fellows)
-
-2004-12-29 (bug fix)[1090413] make [clock scan 0030] work (morian,kenny)
-
-2004-12-29 (bug fix)[1092789] make [clock scan 10000] work (porter,kenny)
-
-2004-12-29 (platform support)[1092952,1091967] MSVC7, gcc OPT compiles (hobbs)
-
-2005-01-06 (performance)[1020491] [http::mapReply] (fellows)
-=> http 2.5.1
-
-2005-01-09 (bug fix)[1095909] stopped use of readdir_r (english)
-
-2005-01-10 (enhancement)[1081595] stopped use of TCL_DBGX (english)
-
-2005-01-17 (bug fix)[1100542] [glob] of Windows shares (schar,darley)
-
-2005-01-19 (new feature)[TIP 235] C API for ensembles (fellows)
-
-2005-01-21 (new feature)[TIP 233] virtual time (kupries)
-
-2005-01-25 (bug fix)[1101670] [auto_reset] update for [namespace] (porter)
-***POTENTIAL INCOMPATIBILITY***
-May cause re-[source]-ing of files that have not anticipated that before.
-
-2005-01-27 (new feature)[TIP 218] Tcl_Channel API update for threads (kupries)
-
-2005-01-27 (bug fix)[1109484] Tcl_Expr* updates for Tcl_WideInt (hobbs)
-
-2005-01-28 (platform support)[1021871] Solaris gcc 64-bit support (hobbs)
-
-2005-02-10 (bug fix)[1119369] Tcl_EvalObjEx: avoid shimmer loss of List intrep
-(sofer,macdonald)
-
-2005-02-11 (platform support) correct gcc builds for AIX-4+, HP-UX-11 (hobbs)
-
-2005-02-24 (bug fix)[1119798] prevent [source $directory] (porter,mpettigr)
-=> tcltest 2.2.8
-
-2005-03-10 (bug fix)[1153871] bad ClientData cast (porter,victorovich)
-
-2005-03-15 (platform support) OpenBSD ports patch (thoyts)
-
-2005-03-18 (bug fix)[1115904] restore recursion limit in direct eval (porter)
-
-2005-03-24 (bug fix) stop conflict between Tcltest and Thread packages (porter)
-
-2005-03-29 (platform support) allow msys builds without cygwin (hobbs)
-
-2005-04-01 (internal change)[1158008]  internal rep of "list" Tcl_Obj's
-now uses a refcounted struct (sofer)
-***POTENTIAL INCOMPATIBILITY***
-For any code that goes poking into the internals of "list" Tcl_Obj's
-
-2005-04-05 (performance)[1174551] Tcl_DecrRefCount of Tcl_Obj "chains" (sofer)
-
-2005-04-08 (performance)[1077262] better Tcl_Encoding cache lifetimes (porter)
-
-2005-04-10 (bug fix)[1180368] [interp invokehidden] mem leak (kenny,porter)
-
-2005-04-12 (performance)[1177363] startup encoding file scan (porter)
-
-2005-04-12 (performance)[1182459] [clock format] (kenny)
-
-2005-04-13 (bug fix) min buffer size dropped from 10 to 1 byte (gravereaux)
-
-2005-04-16 (bug fix)[1178445] fix memory waste at thread exit (vasiljevic)
-
-2004-04-16 (bug fix)[1084111] [array names] memory leak (ade,sofer)
-
-2005-04-19 (bug fix)[1185933] [clock] init clobbered global vars (ring,kenny)
-
-2005-04-19 (new feature) [::tcl::unsupported::EncodingDirs] - unsupported
-command to set search path for encoding files (porter)
-
-2005-04-20 (bug fix)[1090869] Tcl_GetInt accept 0x80000000, 64-bit
-(porter,singh)
-
-2005-04-22 (bug fix)[1187123] [string is boolean] respect EIAS (porter)
-
-2005-04-25 (enhancement) update to tzdata2005i (kenny)
-
-2005-04-25 (platform support) builds on Mac OS X 10.1 (steffen)
-
-2005-04-27 (new feature)[TIP 183] [open $f {... BINARY ...}] (porter)
-
-2005-04-29 (new feature)[TIP 176] simple index arithmetic (porter)
-
-2005-05-06 (platform support) x86_64 Solarix cc and Solaris 10 builds (hobbs)
-
-2005-05-10 (bug fix)[1198892] [expr {i**0}] error (kaitschu,markus)
-
-2005-05-10 (new feature)[TIP 132] floating-point conversion to string (kenny)
-***POTENTIAL INCOMPATIBILITY***
-For scripts that rely on (tcl_precision==12) number formatting
-
-2005-05-10 (new feature)[TIP 232] math functions as commands (kenny)
-***POTENTIAL INCOMPATIBILITY***
-Tcl_GetMathFuncInfo functioning is reduced; routine is now deprecated
-
-2005-05-13 (feature removed) TCL_NO_MATH compiler directive (porter)
-
-2005-05-14 (platform support) Mac OSX: configurable CoreFoundation API
-(steffen)
-
-2005-05-14 (platform support) Mac OSX: use realpath when threadsafe (steffen)
-
-2005-05-17 (feature removed) Tcl_ObjType's "list", "procbody", "index",
-"ensembleCommand", "localVarName", "levelReference, "boolean" are no
-longer registered (porter)
-***POTENTIAL INCOMPATIBILITY***
-For any callers of Tcl_GetObjType on those strings
-
-2005-05-20 (bug fix)[1201589] boolean literal prefix in expressions (porter)
-
-2005-05-24 (platform support) Darwin build support merged into unix (steffen)
-
-2005-05-24 (new feature)[1202209] Mac OSX: support [load] of .bundle binaries
-Can support [load] from memory as well (steffen)
-
-2005-05-24 (new feature)[1202178] [time] returns non-integer result (steffen)
-
-2005-05-25 (new feature)[TIP 182] [expr {bool(...)}] (mistachkin,porter)
-
-2005-05-30 (new feature)[TIP 229] [namespace path] (fellows)
-
-2005-05-31 (bug fix)[1082283] Unix: notifier thread now joinable (vasiljevic)
-
-2005-06-01 (new feature)[TIP 241] -nocase: lsort, lsearch, switch (mistachkin)
-
-2005-06-01 (bug fix)[1209759] "return TCL_RETURN;" could cause panic (porter)
-
-Documentation improvements [1075433,1085127,1117017,1124160,1149605,etc.]
-
---- Released 8.5a3, June 4, 2005 --- See ChangeLog for details ---
-
-2005-06-06 (bug fix)[1213678] Windows/gcc: crash in stack.test (kenny)
-
-2005-06-07 (new feature)[TIP 208] [chan] and [chan truncate] (fellows)
-
-2005-06-07 (revert) Restored registration of "procbody" Tcl_ObjType (porter)
-Reduces the ***POTENTIAL INCOMPATIBILITY*** from 2005-05-17.
-
-2005-06-13 (bug fix)[1217375,1219176] [file mkdir] race (diekhans,darley)
-
-2005-06-14 (bug fix)[1220058] [namespace delete] crash (duquette,fellows)
-
-2005-06-17 (bug fix)[1221395] Tcl_LimitSetTime able to break [vwait] (fellows)
-
-2005-06-18 (bug fix)[1154163] [format %h] on 64-bit OS's (kraft,fellows)
-
-2005-06-21 (bug fix)[1201035,1224585] execution trace crashes (porter)
-
-2005-06-21 (bug fix)[1194458] Windows: [file split] (kenny,porter)
-
-2005-06-22 (bug fix)[1225727] Windows: pipe finalization crash (kenny)
-
-2005-06-22 (bug fix)[1225571] Windows: [file pathtype] buffer overflow (thoyts)
-
-2005-06-22 (bug fix)[1225044] Windows: UMR in pipe close (kenny)
-
-2005-06-23 (bug fix)[1225957] Windows/gcc: crashes in assembler code (kenny)
-
-2005-06-24 (bug fix) make Tcl_Preserve safe in Tk exit handlers (kenny)
-
-2005-07-01 (bug fix)[1222872] notifier spurious wake-up protection (vasiljevic)
-
-2005-07-05 (bug fix)[1230597] allow idempotent [namespace import] (porter)
-
-2005-07-15 (bug fix)[1237907] localtime() => NULL => crash (kenny)
-
-2005-07-21 (dropped support) IRIX 4, RISCos, Ultrix, and ancient BSD (kenny)
-***POTENTIAL INCOMPATIBILITY***
-
-2005-07-22 (enhancement)[1237755] 8.4 features in script library (fradin,porter)
-
-2005-07-24 (new feature) configure macros SC_PROG_TCLSH, SC_BUILD_TCLSH (dejong)
-2005-07-26 (bug fix)[1047286] cmd delete traces during namespace delete (porter)
-
-2005-07-26 (new unix feature)[1231015] ${prefix}/share on ::tcl_pkgPath (dejong)
-***POTENTIAL INCOMPATIBILITY***
-
-2005-07-27 (bug fix)[1214462] [unknown] can return exceptions (porter)
-
-2005-07-27 (new feature) value of ::tcl_precision now kept per-thread (porter)
-***POTENTIAL INCOMPATIBILITY***
-
-2005-07-28 (unix bug fix)[1245953] O_APPEND for >> redirection (fellows)
-
-2005-07-29 (bug fix)[1247135] [info globals] return only existing vars (fellows)
-
-2005-07-30 (new Darwin feature) TCL_LOAD_FROM_MEMORY configuration (steffen)
-
-2005-08-05 (bug fix)[1241572] correct [expr abs($LONG_MIN)] (kenny)
-
-2005-08-05 (Solaris bug fix)[1252475] recognize cp1251 encoding (wagner,fellows)
-
-2005-08-11 (config options) eliminated USE_THREAD_STORAGE option (kenny)
-
-2005-08-23 (toolchain support) autoconf-2.59 now required (dejong)
-
-2005-08-24 (new feature)[TIP 219] reflected channels ([chan create]) (kupries)
-
-2005-08-25 (bug fix)[1267380] [lrepeat] buffer overflow prevention (fellows)
-
-2005-08-26 (bug fix) fix [namespace ensemble] crashes in Snit (fellows)
-
-2005-08-29 (bug fix)[1275043] restore round() away from zero (kenny)
-
-2005-08-29 (bug fix)[1189657] correct [tcl::tm::roots] (porter)
-
-2005-09-07 (bug fix)[1283976] invalid [format %c -1] result (porter)
-
-2005-09-08 (new feature)[1242844][TIP 254] new types for Tcl_LinkVar (fellows)
-
-2005-09-07 (toolchain support) deprecate TCL_VARARGS*; stdarg.h assumed (porter)
-***POTENTIAL INCOMPATIBILITY***
-
-2005-09-15 (RHEL bug fix)[1287638] support open >2GB files RHEL 3 (palan)
-
-2005-09-08 (new feature)[TIP 255] [expr min()] and [expr max()] (hobbs)
-
-2005-09-30 (bug fix)[1306162] $argv encoding and list formatting (porter)
-
-2005-10-04 (bug fix)[1067708] [fconfigure -ttycontrol] leak (hobbs)
-
-2005-10-04 (bug fix)[1182373] [http::mapReply] update to RFC 3986 (aho,hobbs)
-=> http 2.5.2
-
-2005-10-04 (HPUX bug fix)[1204237] shl_load() and DYNAMIC_PATH (collins,hobbs)
-
-2005-10-05 (bug fix)[979640] buffer overrun mixing putenv(), ::env (bold,hobbs)
-
-2005-10-08 (new feature)[TIP 237] unlimited range for integers (kenny,porter)
-***POTENTIAL INCOMPATIBILITY*** for any code that relies on implicit truncation
-of integer calculations to the range of a C long
-
-2005-10-14 (platform support)[1256937] MSVC++ static builds (thoyts)
-
-2005-10-19 (bug fix)[1331475] [dict append] crash (bills,sofer)
-
-2005-10-20 (bug fix)[1333036] [lset] shared sublist handling (sofer)
-
-2005-10-23 (bug fix)[1335006] memleack in [glob] (melbardis,darley)
-
-2005-10-23 (bug fix)[1325803] Win: [file stat] on links (bonilla,darley)
-
-2005-11-01 (bug fix)[1337941] Tcl_TraceCommand() -> crash (devilliers,porter)
-
-2005-11-02 (platform support)[1256937] MSVC 8 support (thoyts)
-
-2005-11-03 (new Win NT/XP feature) Unicode console support (kovalenko,thoyts)
-
-2005-11-04 (bug fix)[1337229,1338280] [namespace delete] / unset traces (sofer)
-
-2005-11-04 (enhancement) Korean timezone abbreviations (kenny)
-
-2005-11-04 (platform support)[1163896] LynxOS [load] (heidibr)
-
-2005-11-04 (bug fix)[1334947] value refcount error in var setting (sofer)
-
-2005-11-04 (Win enhancement)[1267871] extended exit codes (newman,thoyts)
-
-2005-11-07 (bug fix)[1348775] unset trace memory leak (sofer)
-
-2005-11-08 (bug fix)[1162286] [package require] checks that the script
-registered by [package ifneeded] provides the version it claims (lavana,porter)
-*** POTENTIAL INCOMPATIBILITY ***
-
-2005-11-09 (bug fix)[1350293,1350291] [after $negative $script] fixed (kenny)
-
-2005-11-12 (bug fix)[1352734,1354540,1355942,1355342] [namespace delete]
-issues with [namespace path] and command delete traces (sofer,fellows)
-
-2005-11-18 (bug fix)[1358369] URL parsing standards compliance (wu,fellows)
-=> http 2.5.2
-
-2005-11-18 (revert) Restored registration of "list" Tcl_ObjType (porter)
-Reduces the ***POTENTIAL INCOMPATIBILITY*** from 2005-05-17.
-
-2005-11-18 (bug fix)[1359094] Tclkit crash (thoyts, kupries)
-
-2005-11-20 (bug fix)[1091431] Tcl_InitStubs failure crashes wish (english)
-
-2005-11-27 (platform support) Darwin 64bit, Tiger copyfile(), and
-Max OSX universal binaries support (steffen)
-
-2005-11-28 (bug fix) [clock] DST transition error (mackerras,kenny)
-
-2005-11-29 (bug fix)[1366683] [lsearch -regexp] backrefs (cleverly,fellows)
-
-2005-11-30 (performance) recoded portions of [clock] in C (kenny)
-
-2005-11-30 (enhancement) improved bytecode compiling of [switch] (fellows)
-*** POTENTIAL INCOMPATIBILITY ***
-For loading bytecode compiled and saved by earlier 8.5alpha releases
-
-2005-12-05 (Darwin bug fix)[1034337] NFS recursive file delete (steffen)
-
-2005-12-08 (platform support) Win x64 build (hobbs)
-
-2005-12-09 (bug fix)[1374778] [lsearch -start $pastEnd] => -1 (fellows)
-
-2005-12-12 (bug fix)[1377619] configure syntax error exposed in bash-3.1 (hobbs)
-
-2005-12-13 (bug fix)[1379349] [dict for] CoW error (ring,hippler,fellows)
-
-2005-12-18 (bug fix)[1382528] [dict for {k v} {} {}] crash (kovalenko,fellows)
-
-2005-12-27 clock tzdata updated to Olson's tzdata2005r (kenny)
-
-2005-12-27 libtommath updated to release 0.37 (kenny)
-
-2006-01-09 (bug fix)[1480572] [info level $l] => "namespace inscope" (porter)
-
-2006-01-11 (compat support)[1397843] when ::errorInfo is traced, fall back to
-old pattern of stack trace construction (porter).
-Reduces the ***POTENTIAL INCOMPATIBILITY*** from 2004-10-05.
-
-2006-01-12 (bug fix)[1366227] Win: [file stat] sharing violation (darley)
-
-2006-01-23 (bug fix)[1410553] Tcl_GetRange Unicode confusion (twylite,spjuth)
-
-2006-01-23 (bug fix)[1412695] args handling in precompiled procs (traum,sofer)
-
-2006-02-01 (new feature)[1275435][TIP 250] [namespace upvar] (sofer)
-
-2006-02-01 (new feature)[958222][TIP 181] [namespace unknown] (madden)
-
-2006-02-01 (new feature)[944803][TIP 194] [apply] (mistachkin)
-
-2006-02-08 (new feature)[1413934][TIP 258] [encoding dirs], etc. (porter)
-
-2006-02-09 (new feature)[1413115][TIP 215] auto-init [incr] (leitgeb)
-
-2006-03-02 (bug fix)[1379287] norm of paths with /../ back to root (porter)
-
-2006-03-03 (compat support) Restored registration of a "boolean" Tcl_ObjType
-(porter)
-Reduces the ***POTENTIAL INCOMPATIBILITY*** from 2005-05-17.
-
-2006-03-06 (bug fix)[1439836,1444291] fix TCL_EVAL_{GLOBAL,INVOKE} handling
-when auto-loading or exec traces are present (porter)
-
-2006-03-10 (bug fix)[1437595] Win socket finalize with threads (vasiljevic)
-
-2006-03-13 (revert 2005-07-26 change) ${prefix}/share on ::tcl_pkgPath (porter)
-
-2006-03-14 (bug fix)[1448251] TCLX.y_TM_PATH handling (noble, kupries)
-
-2006-03-14 (bug fix)[768659] pipeline error when last command missing (kupries)
-
-2006-03-18 (bug fix)[1193497] Win porting of [file writable] (darley,vogel)
-
-2006-03-18 (bug fix)[1084705] [glob -nocomplain] silence empty result only,
-no other errors (darley)
-***POTENTIAL INCOMPATIBILITY***
-
-2006-03-21 (platform enhancement)[823329] HFS globbing support (steffen)
-
-2006-03-23 (platform support) updated tcl.spec file (max)
-
-2006-03-28 (bug fix)[1064247] BSD: path normalization with realpath() (steffen)
-
-2006-04-03 (bug fix)[1462248] crash reading utf-8 chars spanning multiple
-buffers at end of file (kraft,kupries)
-
-2006-04-05 (bug fix)[1464039] Tcl_GetIndexFromObj: empty key (fellows)
-
-2006-04-05 (bug fix) overdue dde, registry  patchelevel increments (porter)
-=> dde 1.3.2
-=> registry 1.2
-
-2006-04-06 (bug fix)[1457515] TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING
-removed (steffen)
-
-2006-04-11 (bug fix)[1458266] enter/enterstep trace interference (leunissen)
-
-2006-04-12 (feature change)[1376892] revised definition of [:print:] (fellows)
-
-(platform support) Use of _ANSI_ARGS_ purged.  ANSI compiler required (fellows)
-
-Documentation improvements [1211078,1190891,1292427,1277503,1104682,1359183,
-1415725,666770]
-
---- Released 8.5a4, April 27, 2006 --- See ChangeLog for details ---
-
-2006-05-04 (bug fix)[1480509] srand() accept wide input (porter,afredd)
-
-2006-05-05 (bug fix)[1481986] interactive Tcl_Main blocks main loop (porter,lin)
-
-2006-05-13 (bug fix)[1482718] proc re-compile: preserve the previous
-bytecode while references still on the stack (porter,ryazanov)
-
-2006-05-27 (bug fix)[923072] Darwin: made unthreaded CoreFoundation notifier
-naked-fork safe on Tiger (steffen)
-
-2006-06-20 (internal change) Dropped the internal routines used to hook into
-filesystem operations back in the pre-Tcl_Filesystem days. (porter)
-***POTENTIAL INCOMPATIBILITY***
-For extensions and programs that have never migrated to the supported Tcl 8.4
-interface for virtual filesystems
-
-2006-07-05 (enhancement) Expression parser rewrite avoids stack overflow,
-reduces from O(N^2) to O(N) complexity, and greatly improves syntas error
-messages (porter)
-***POTENTIAL INCOMPATIBILITY***
-For any code relying on exact error messages.
-
-2006-07-20 (platform support) Mac OS X weak linking (steffen)
-
-2006-07-20 (bug fix) Darwin: execve() works iff event loop not yet run (steffen)
-
-2006-07-24 (bug fix)[1518166] Uninitialized Tcl_DString (afredd)
-
-2006-07-30 (bug fix)[1426279,1505383,1494664,1531530] [clock] fixes (kenny)
-
-2006-08-09 (bug fix)[1531184] [dict for {file stat} x {}] crash (fellows)
-
-2006-08-10 (bug fix)[1538262,1530474] code cleanup; optimizations (afredd)
-
-2006-08-18 (bug fix) intermittent failures in TclUnixWaitForFile() (steffen)
-
-2006-08-18 (platform support) Darwin x86_64 (steffen)
-
-2006-08-21 (bug fix)[1457797] Darwin 64-bit notifier hang (steffen)
-
-2006-08-21 (bug fix) Darwin: recursively called event loop (steffen)
-
-2006-08-21 (enhancement) Darwin: nanosec resolution clicks and [time] (steffen)
-
-2006-08-28 (bug fix)[1547681] TclFormatObj count arguments (mistachkin,porter)
-
-2006-08-28 (bug fix) stack.test failure on FreeBSD (mistachkin)
-
-2006-08-30 (bug fix)[1548263] filesystem segfaults (hobbs,mccormack)
-
-2006-08-31 (bug fix)[1541274] [expr {sqrt(-1)}] => -NaN (suchenwirth,porter)
-
-2006-09-06 (bug fix)[999544] use of MT-safe system calls (vasiljevic)
-
-2006-09-10 (platform support) Darwin: msgcat use CFLocale (steffen)
-=> msgcat 1.4.2
-
-2006-09-10 (new feature) tcltest option: -verbose line (steffen)
-=> tcltest 2.3a1
-
-2006-09-19 (bug fix)[1555271,1561260] Several ** operator bugs (porter)
-
-2006-09-22 (bug fix)[1562528] NULL terminates variadic calls (fellows,ryazanov)
-
-2006-09-22 (new feature)[1520767][TIP 268] [package] alpha/beta version;
-[package require] ranges, [package prefer] selection mode (kupries)
-
-2006-09-26 (platform support) MSVC8 AMD64 support (thoyts)
-
-2006-09-27 (bug fix)[1567222] bignum << errors (porter)
-
-2006-09-30 (enhancement)[1190441] quiet no-op [history] (sofer)
-
-2006-10-04 clock tzdata updated to Olson's tzdata2006m (kenny)
-
-2006-10-05 (bug fix)[1570718] make [lappend $nonList] complain (sofer,virden)
-
-2006-10-05 (bug fix)[1122671] alignment fixes in unicode encoding routines
-(hobbs,staplin)
-
-2006-10-05 (enhancement) Allow "_" in Tcl Module filenames (kupries)
-
-2006-10-05 (new feature) [set ::http::strict 0] (default value is 1) to disable
-URL validity checking against RFC 2986 (hobbs)
-=> http 2.5.3
-
-2006-10-06 (new feature)[1565751][TIP 275] [binary scan] unsigned (thoyts)
-
-2006-10-10 (bug fix)[1566526] crash cleaning up [namespace path] data (porter)
-
-2006-10-12 (bug fix)[1576006] better error messages from [interp alias] (sofer)
-
-2006-10-13 (platform support) get stack size on Darwin (steffen)
-
---- Released 8.5a5, October 20, 2006 --- See ChangeLog for details ---
-
-2006-10-20 (configure change) Added autodetection for OS-supplied timezone
-files (max)
-
-2006-10-23 (enhancement)[1577278] Ensure the Tcl call stack always has a
-CallFrame, even at level 0 (sofer)
-	*** POTENTIAL INCOMPATIBILITY for users of tclInt.h ***
-
-2006-10-23 (enhancement)[1577492] Tcl_PushCallFrame and [info level]
-enhanced for ensemble rewrites (sofer)
-	*** POTENTIAL INCOMPATIBILITY for [info level 0] on interp alias ***
-
-2006-11-02 (feature change)[TIP 293] Replace {expand} with {*} (hobbs)
-	*** POTENTIAL INCOMPATIBILITY with previous 8.5 alphas only ***
-
-2006-11-04 (new feature)[TIP 274] Exponentiation operator is right
-associative (porter)
-
-2006-11-09 (new feature)[TIP 272] Added [lreverse] and [string reverse]
-commands (fellows)
-
-2006-11-14 (new feature)[TIP 261] [namespace import] returns list of
-imported commands (porter)
-
-2006-11-15 (new feature)[TIP 270] New C routines Tcl_ObjPrintf,
-Tcl_AppendObjToErrorInfo, Tcl_Format, Tcl_AppendLimitedToObj,
-Tcl_AppendFormatToObj, Tcl_AppendPrintfToObj (porter)
-
-2006-11-22 (feature change) Moved TCL_REG_BOSONLY from tcl.h to tclInt (porter)
-
-2006-11-22 (new feature)[TIP 269] Added [string is list] classification
-command (mistackin, fellows)
-
-2006-11-25 (new feature)[TIP 174] Added commands corresponding to most
-expr operators in ::tcl::mathop (fellows)
-
-2006-11-26 (platform support)[1230558] --enable-64bit on more systems (steffen)
-
-2006-11-27 (bug fix)[1602208] Fix 64-bit handling of select() on unix where
-fd was greater than 32 (fontaine, kenny)
-
-2006-11-28 (new feature)[TIP 280] Added [info frame] command for more
-Tcl-level debugging information (kupries)
-
-2006-12-01 (feature change)[TIP 298] Change Tcl_GetBignumAndClearObj to
-Tcl_TakeBignumFromObj (porter)
-
-2006-12-01 (new feature)[TIP 287] Added [chan pending] subcommand (cleverly)
-
-2006-12-01 (new feature)[TIP 299] Added isqrt() expr operator (kenny)
-
-2006-12-04 (new feature)[TIP 267] Added -ignorestderr option to exec (fellows)
-
-2006-12-05 (new feature)[TIP 291] ::tcl_platform(pointerSize) key (kupries)
-
-2007-01-11 (configure change) Remove "-Wconversion" from deflt CFLAGS (english)
-
-2007-01-25 (configure change) Ensure CPPFLAGS env var is used when set (steffen)
-
-2007-02-19 (configure change) Use SHLIB_SUFFIX=".so" on HP-UX IA64 (was
-".sl") (hobbs)
-
-2007-02-20 (bug fix)[1479814] Handle Windows NT \\?\... extended paths (thoyts)
-
-2007-03-01 (bug fix)[1671138] Fix infinite loop in compiled foreach with an
-empty list (fellows)
-
-2007-03-07 (enhancement) Improved Windows time zone tables to handle new US
-DST rules (kenny)
-
-2007-03-09 (enhancement) Improved Y2038 compliance of zoneinfo files (kenny)
-
-2007-04-02 (enhancement) Added bytecode compilation for global, variable,
-upvar and namespace upvar (sofer)
-
-2007-04-20 (bug fix) Improve clock localization for Japanese locale (kenny)
-
-2007-04-20 (enhancement) Document Tcl_SetNotifier & Tcl_ServiceModeHook (kenny)
-
-2007-04-23 (bug fix) fts_open() crash on 64bit Darwin 8 or earlier (steffen)
-
---- Released 8.5a6, April 25, 2007 --- See ChangeLog for details ---
-
-2007-04-30 (bug fix)[1705778] many valgrind-detected leaks corrected
-
-2007-05-01 (bug fix)[1710709] leak in [string map] (porter)
-
-2007-05-02 (bug fix)[1710707] leaks in filesystem paths (mistachkin,kenny)
-
-2007-05-18 (feature change) {expand} syntax support removed. (porter)
-	*** POTENTIAL INCOMPATIBILITY with previous 8.5 alphas only ***
-
-2007-05-29 (bug fix)[1712723] Joinable thread death on 64-bit (virden,hobbs)
-
-2007-05-30 (feature change)[1725186] When expanded literals are parsed,
-(example: {*}{1 2 3}), TCL_TOKEN_EXPAND_WORD token is no longer returned.
-Tokens reflecting the expansion are returned instead. (porter)
-	*** POTENTIAL INCOMPATIBILITY with previous 8.5 alphas only ***
-
-2007-06-06 (platform support) Darwin: add plist to tclsh (steffen)
-
-2007-06-12 (enhancement) [info] is now a [namespace ensemble] (fellows)
-
-2007-06-20 (enhancement) better `make html` results (hobbs)
-
-2007-06-21 (feature change)[1740962] leave traces created during execution
-of traced command do not fire (sofer)
-	*** POTENTIAL INCOMPATIBILITY ***
-
-2007-06-23 (bug fix) Darwin: prevent post-fork() abort() (steffen)
-
-2007-06-27 (bug fix)[1743941] Infinite loop in Tcl_CreateTrace traces (porter)
-
-2007-06-29 (enhancement) Tcl_Alloc alignment on Darwin (steffen)
-
-2007-06-30 (bug fix)[1726873] crash in thread sync objects (vasiljevic,twylite)
-
-2007-06-30 (bug fix)[1717186] [lsort -command \{ $l] leak (afredd,fellows)
-
-2007-07-05 (bug fix)[1743676] no command named "" error message (porter,virden)
-
-2007-07-11 (bug fix)[1752146] [while 1 {}] & [interp limit] on commands (sofer)
-
-2007-07-31 (bug fix)[681877] tcl_platform(user) from system, not env (fellows)
-
-2007-07-31 (enhancement)[1750051] space efficiency of Tcl variables (sofer)
-	*** POTENTIAL INCOMPATIBILITY for C code that accesses internal
-	Tcl structs Var, Bytecode, Namespace, or CallFrame. ***
-
-2007-08-01 (enhancement)[1764318] word.tcl proc rewrites (petasis,fellows)
-
-2007-08-08 (bug fix)[1770224] [tcl::mathop::>> $big1 $big2] errors (porter)
-
-2007-08-14 (platform support) Darwin [load] from VFS on intel & 64bit (steffen)
-
-2007-08-15 (bug fix)[1773127] corrected open mode "a+" (rottman,fellows)
-
-2007-08-16 (bug fix)[1773040] ::errorInfo trace crash (janssen,porter)
-
-2007-08-16 (performance)[1564517] pre-compile constant expressions (porter)
-
-2007-08-21 (bug fix)[1775878] 'puts \' in interactive tclsh failed to move to
-prompt for continuation line (porter)
-
-2007-08-25 (bug fix)[1781282] [clock scan] case senstivity (kenny)
-
-2007-08-25 (performance)[1767293] ** on native integer types (kenny)
-
-2007-09-03 clock tzdata updated to Olson's tzdata2007g (kenny)
-
-2007-09-06 (platform support) Darwin: drop support for Xcode 1.5 project, add
-project for Xcode 3.0 (steffen)
-
-2007-09-08 (bug fix)[1786481] nested [dict update] crash (fellows)
-
-2007-09-08 (bug fix)[1710710] TclPtrSetVar leak (mistachkin,sofer)
-
-2005-09-09 (feature removed) Tcl_ObjType "nsName" no longer registered (porter)
-	*** POTENTIAL INCOMPATIBILITY for Tcl_GetObjType("nsName") ***
-
-2007-09-10 (bug fix)[1740631] Linked variable unlink prevention (maros,hobbs)
-
-2007-09-11 (bug fix)[1786481] [dict update] stack management (sofer)
-	*** POTENTIAL INCOMPATIBILITY with previous 8.5 alpha bytecode only ***
-
-2007-09-11 (bug fix)[1578344] [package require -exact] 8.4 compat (porter)
-	*** POTENTIAL INCOMPATIBILITY with previous 8.5 alphas only ***
-
-2007-09-11 (bug fix)[1772989,1071322] Support _, : in test constraints (porter)
-=> tcltest 2.3b1
-
-2007-09-11 (platform support) Windows AMD64 support (thoyts)
-
-2007-09-14 (enhancement)[1793984] DTrace provider for Tcl (steffen)
-
-2007-09-14 (bug fix)[1519940] surplus ns path invalidation (fellows,bauer)
-
-2007-09-15 (platform support) SunOS-5.1x link with cc, not ld (steffen)
-
-2007-09-17 (platform support)[1748251] Fix NetBSD link failures (english)
-
-(bug fix)[1066755] Several stack efficiency efforts increases recursion limit
-on Windows to be larger than the default [interp recursionlimit] value
-
---- Released 8.5b1, September 26, 2007 --- See ChangeLog for details ---
-
-2007-10-02 (bug fix)[1806422] proper [tcl::tm::path] autoload (porter)
-
-2007-10-02 (bug fix) Improve Tcl_DecrRefCount() robustness (staplin)
-
-2007-10-11 (bug fix)[1805887] [string is int -failindex] for 0o, 0b (porter)
-
-2007-10-15 (bug fix)[1813528] Tcl_ParseBraces read past buffer (mistachkin)
-
-2007-10-25 (bug fix)[1726873] intermittent crash in threads (vasiljevic)
-
---- Released 8.5b2, October 26, 2007 --- See ChangeLog for details ---
-
-2007-10-27 (bug fix)[1821159] fixed broken compile on x86_64 (sofer)
-
-2007-10-27 (bug fix)[1810264] stop panic in RE lexer (fellows)
-
-2007-10-28 (enhancement)[1826906] Embed iso8859-1 encoding in libtcl (fellows)
-
-2007-11-01 (bug fix)[1808258] [string is ascii \000] (fellows)
-
-2007-11-05 (bug fix)[1823576] [fconfigure $serial -xchar \000] (cassof)
-
-2007-11-07 (performance)[1827996] binary glob matching (hobbs)
-
-2007-11-07 (performance) binary [gets] (hobbs)
-
-2007-11-09 (performance)[1829248] interp state reset (sofer)
-
-2007-11-10 (performance) stack checking (sofer)
-
-2007-11-10 (performance) list indexing bytecode (sofer)
-
-2007-11-11 (performance)[1830038] macros to fetch Tcl_Obj intreps (sofer)
-
-2007-11-11 (performance)[1830166] RE bytecode for simple cases (hobbs)
-
-2007-11-13 (performance) [switch] & [regexp] use RE bytecode (hobbs, fellows)
-
-2007-11-14 (performance) bytecode for [info exists] (fellows)
-
-2007-11-15 (new feature)[1231022] configure option: --disable-rpath (fellows)
-
-2007-11-15 (bug fix)[1810038] infinite loop in RE compiler (lane,porter)
-
-Many significant documentation improvements (fellows, sofer)
-
---- Released 8.5b3, November 19, 2007 --- See ChangeLog for details ---
-
-2007-11-20 (enhancement) string rep of dict has stable order (fellows)
-
-2007-11-21 (enhancement) compiled ensemble support (fellows)
-
-2007-11-22 (enhancement) [dict] is now an ensemble (fellows)
-
-2007-11-23 (enhancement) [string] is now an ensemble (fellows)
-
-2007-11-26 (bug fix)[1815573] Correct stack checking failure (sofer,golovan)
-
-2007-11-27 (bug fix)[800753] Document single byte char limit for
-[chan configure -eofchar] (cassoff)
-
-2007-12-03 (enhancement)[1836519] [switch $val $body] safe/fast (fellows,spjuth)
-
-2007-12-03 (release) tcltest package bump to 2.3.0 (porter)
-
-2007-12-03 (bug fix)[1618235] fix BSD compile errors (fellows)
-
-2007-12-05 (bug fix)[1844789] fix [lsearch -exact -integer] crash (fellows)
-
-2007-12-05 (performance)[1845092] Tcl_ObjType for channel names (hobbs)
-
-2007-12-14 (bug fix)[1602539] NUL pollution in [glob] result (hobbs)
-
-2007-12-17 (bug fix)[1851832,1851524] memory alignment correction (sofer)
-
-2007-12-18 (bug fix)[1810264] revised regexp engine to prevent debilitating
-over-consumption of resources (drewry,lane,ormandy,fellows)
-
-Several documentation and release notes improvements
-
---- Released 8.5.0, December 20, 2007 --- See ChangeLog for details ---
-
-2007-12-23 (bug fix)[1857126] restore backref support to regexps (hobbs)
-
-2007-12-26 (enhancement)[1856994] [lsort] performance (sofer)
-
-2008-01-10 (bug fix)[1867855] fix [format %lli 0] crash (porter)
-
-2008-01-11 (bug fix)[1850424,1860425] stack checking on *bsd (sofer,noble)
-
-2008-01-13 (bug fix)[1353846] crash in read-only serial (hobbs,newman)
-
-2008-01-15 (bug fix)[1869989] mem leak; expr literals (porter,melbardis)
-
-2008-01-20 (bug fix)[1869405] binary [gets]; stacked channels (hobbs,ficicchia)
-
-2008-01-22 (bug fix)[1867855] fix [lreverse {}] crash (sofer,madden)
-
-2008-01-30 (bug fix)[1882373] fix Tcl_GetAlias pointer code (an00na)
-
-Several documentation and release notes improvements
-
---- Released 8.5.1, February 5, 2008 --- See ChangeLog for details ---
-
-2008-02-06 (enhancement) [clock format] performance (kenny)
-
-2008-02-12 (bug fix)[1891827] compiled [switch -nocase] error (fellows)
-
-2008-02-22 (bug fix)[1818565] missing state array in http::status (thoyts)
-=> http 2.5.4
-
-2008-02-26 (bug fix)[1868845] corrected [eof] ordering (thoyts)
-
-2008-02-26 (new feature) [http::meta] command (thoyts)
-=> http 2.5.5
-
-2008-02-26 (bug fix)[1902436] fixed regexps ending in \* (hobbs)
-
-2008-02-27 (bug fix)[1862555,1902423] [clock] range & l10n (kenny)
-
-2008-02-28 (bug fix) [return -level 0] memory leak (porter)
-
-2008-02-28 (bug fix) [format %llx $big] memory leak (porter)
-
-2008-02-28 (bug fix) expression parser error message memory leak (porter)
-
-2008-02-28 (bug fix) memory leak when enter trace modifies command (porter)
-
-2008-02-29 (enhancement) Consumer refcounting for Tcl_SetReturnOptions()
-and Tcl_AddObjToErrorInfo() (spjuth,porter)
-	*** POTENTIAL INCOMPATIBILITY ***
-
-2008-03-07 (bug fix)[1899164] Avoid expr and script bytecode confusion (porter)
-
-2008-03-07 (bug fix)[1904907] finalize crash in Tcl_GetReturnOptions (kupries)
-
-2008-03-10 (bug fix)[1893815] expr {abs(-1e-350)} => -0.0 (porter)
-
-2008-03-10 (bug fix)[1901113] crash in [tcl::Bgerror {} {}] (madden,porter)
-
-2008-03-11 (bug fix)[1911919] unset trace inf loop in namespace delete (sofer)
-
-2008-03-12 (new feature) some HTTP 1.1 support in http (and more!) (hobbs)
-=> http 2.7
-
-2008-03-13 (enhancement) support space in INSTALL_ROOT or $builddir (steffen)
-
-2008-03-16 (bug fix)[1903325] bytecode stack space prediction crash (fellows)
-
-2008-03-18 (bug fix)[1914604] Tcl Modules: encoding fixed to utf-8; environment
-variables without "." added to customization hooks (kupries)
-	*** POTENTIAL INCOMPATIBILITY ***
-
-2008-03-18 (bug fix)[1914503] alignment of TclStackAlloc() return (sofer)\
-
-2008-03-20 (bug fix)[1868171] expose Tcl_GetMemoryInfo (for AOLserver) (fellows)
-
-2008-03-24 (bug fix)[1923966] crash in [binary format x0s] (thoyts)
-
-2008-03-27 (platform support)[1921166] Solaris 64bit build fixes (steffen)
-
-2008-03-27 clock tzdata updated to Olson's tzdata2008b (kenny)
-
---- Released 8.5.2, March 28, 2008 --- See ChangeLog for details ---
-
-2008-03-30 (bug fix)[1783544] more robust TclIsNaN() (kenny,teterin)
-
-2008-04-01 (bug fix)[1839067] FP round fix for Solaris/x86 (kupries,schlenker)
-
-2008-04-02 (bug fix)[780533,1932639] [fcopy] callbacks unreliable (ferrieux)
-
-2008-04-04 (bug fix) [chan postevent] crash (kupries)
-
-2008-04-07 (bug fix) Fix broken [format {% d}] (max)
-
-2008-04-07 (bug fix)[1350564] Bi-directional [fcopy] now supported (ferrieux)
-
-2008-05-07 (bug fix) [dict append] crash (mccormack,fellows)
-
-2008-05-21 (bug fix)[1968882] [info complete "\\\n"] => 0 (porter)
-
-2008-05-22 (bug fix)[1968245] Tcl_LogCommandInfo() accept length=-1 (darroch)
-
-2008-05-23 (bug fix)[1965787] 32-bit overflow in [tell] result (ferrieux)
-
-2008-06-12 (platform support) Solaris static build with DTrace (steffen)
-
-2008-06-12 (platform support) Solaris/amd64 gcc 64bit support (steffen)
-
-2008-06-20 (bug fix)[1999035] make [interp bgerror $i] act in $i (porter)
-
-2008-06-23 (bug fix)[1972879] bad path intrep caching (porter)
-
-2008-06-24 (bug fix)[1999176] crash in [glob -dir {} a] (porter)
-
-2008-06-25 (bug fix)[1999119] Support TM packages in Safe Base (kupries)
-
---- Released 8.5.3, June 30, 2008 --- See ChangeLog for details ---
-
-2008-07-03 (bug fix)[1969717] fix package finding on Samba shares (jos)
-
-2008-07-03 (bug fix)[1987821] mem leak in [seek] on reflected chan (kupries)
-
-2008-07-20 (enhancement)[2008248] dict->list preserve item intreps (pasadyn)
-
-2008-07-21 (bug fix)[2015723] [file] bad use of inodes on Windows (thoyts)
-
-2008-07-21 (enhancement) [info frame] returns file data in more cases (kupries)
-
-2008-07-29 (bug fix)[2030670] fix rare panic in TclStackFree (pasadyn,sofer)
-
-2008-08-08 tzdata updated to Olson's tzdata2008e (kenny)
-
-2008-08-11 (bug fix)[2046846] 64bit support for http zlib crc (thoyts)
-=> http 2.7.1
-
-2008-08-11 (enhancement) automatic [package provide] for TMs (kupries)
-
---- Released 8.5.4, August 15, 2008 --- See ChangeLog for details ---
-
-2008-08-14 (bug fix)[2055782] fix crash in [namespace inscope] (sofer)
-
-2008-08-21 (bug fix)[2065115] correct handling of ***= RE's (hobbs,porter)
-
-2008-09-10 (enhancement) efficient list->dict conversion (elby,fellows)
-
-2008-09-17 (bug fix)[2116053] export [min] and [max] from tcl::mathfunc (sofer)
-
-2008-09-27 (bug fix)[2130992] prevent overflow crash in [lrepeat] (fellows)
-
-2008-10-05 (bug fix)[2143288] correct bad isqrt() results (boffey,kenny)
-
-2008-10-08 (bug fix)[2151707] fix stack trace from variable trace (porter)
-
---- Released 8.5.5, October 15, 2008 --- See ChangeLog for details ---
-
-2008-10-24 (bug fix) fix failure to read SHOUTcast streams (thoyts)
-=> http 2.7.2
-
-2008-11-10 (bug fix)[2255235] [platform::shell::LOCATE] update (ring,kupries)
-=> platform::shell 1.1.4
-
-2008-11-13 (bug fix)[2269431] VFS [load] -> tempfile litter (ficicchia,nijtmans)
-
-2008-11-30 (bug fix)[2362156] [clock]: colon in format string (mizuno,kenny)
-
-2008-12-01 (bug fix)[2251175] [{*}{\{}] errors (hellström,ferrieux,porter)
-
-2008-12-02 (bug fix)[2270477] hang in channel finalization (ferrieux,kupries)
-
-2008-12-04 (bug fix)[2385549] [file normalize] failed on some paths (porter)
-
-2008-12-10 tzdata updated to Olson's tzdata2008i (kenny)
-
-2008-12-11 (bug fix)[2407783] spoil ChannelState when channel name passes
-among multiple interps (kupries)
-
-2008-12-21 (bug fix) Fix ability to join threads on 64-bit Windows (thoyts)
-
-2008-12-21 (bug fix)[2114900] updated tclIndex file (cassoff,kenny)
-
---- Released 8.5.6, December 21, 2008 --- See ChangeLog for details ---
-
-2009-01-03 (bug fix)[2481670] [clock add] error message (talvo)
-
-2009-01-19 (new feature) CONFIG_INSTALL_DIR - where tclConfig.sh goes (cassoff)
-
-2009-01-19 (platform support) better tools for BSD ports (cassoff)
-
-2009-01-21 (bug fix)[2458202] exit crash with [chan create]d channel (kupries)
-
-2009-01-29 (bug fix)[2519474] Tcl_FindCommand() bug exposed by oo (fellows)
-
-2009-02-04 (bug fix)[2561746] [string repeat] overflow crash (porter)
-
-2009-02-17 (platform support) MSVC and _WIN64 (hobbs)
-
-2009-02-20 (bug fix)[2571597] [file pathtype /a] wrong result (nadkarni,porter)
-
-2009-03-15 (platform support) translate SIGINFO where defined (BSD) (teterin)
-
-2009-03-18 (bug fix)[2688184] memleak in [file normalize] (mistachkin)
-
-2009-03-20 (bug fix)[2597185] crash in Tcl_AppendStringToObj (porter)
-
-2009-03-27 (bug fix)[2710920] [file dirname|tail /foo/] errors (epler,porter)
-
-2009-03-30 (bug fix)[2603158] Tcl_AppendObjToObj: append to self crash (porter)
-
-2009-04-07 (bug fix)[2561794,2669109,2494093,2553906] string overflow (porter)
-
-2009-04-08 (bug fix)[2570363] unsafe [eval]s in tcltest (bron,porter)
-=> tcltest 2.3.1
-
-2009-04-08 (platform support) more Darwin kernel patterns (steffen)
-=> platform 1.0.4
-
-2009-04-09 (bug fix)[26245326] [http::geturl] connection failures (golovan)
-=> http 2.7.3
-
-2009-04-10 (new feature) Darwin: embeddable CoreFoundation notifier (steffen)
-
-2009-04-10 (bug fix)[1961211]  Darwin [load] back-compatibility (steffen)
-
-2009-04-14 tzdata updated to Olson's tzdata2009f (kenny)
-
---- Released 8.5.7, April 15, 2009 --- See ChangeLog for details ---
-
-2009-04-27 (bug fix)[2446662] uniformly declare EOF on RST on sockets (ferrieux)
-
-2009-04-27 (bug fix)[1028264] delay WSACleanup() from under our feet (ferrieux)
-
-2009-05-07 (bug fix)[2785893] find command in deleted namespace (sofer)
-
-2009-05-29 (platform support) account for ia64_32 (kupries)
-=> platform 1.0.5
-
-2009-06-02 (bug fix)[2798543] incorrect [expr] integer ** results (porter)
-
-2009-06-10 (bug fix)[2801413] overflow in [format] (porter)
-
-2009-06-13 (bug fix)[2802881] corrected compile env context (tasada,porter)
-
-2009-07-01 (bug fix)[2806622] Win: bad tcl_platform(user) value (thoyts)
-
-2009-07-16 (bug fix)[2819200] underflow settings on MIPS systems (porter)
-
-2009-07-23 (bug fix)[2820349] plug event leak in notifier (mistachkin)
-
-2009-07-24 (bug fix)[2826248] crash in Tcl_GetChannelHandle (sonnenburg,kupries)
-
-2009-07-31 (bug fix)[2830354] overflow in [format] (misch,porter)
-
-2009-08-06 (bug fix)[2827000] reflected channels can signal EGAIN (kupries)
-
-2009-08-20 (bug fix)[2806250] EIAS violation in ~foo pathnames (porter)
-
-2009-08-21 (bug fix)[2837800] [glob */foo] return ./~x/foo (porter)
-
-2009-08-24 (bug fix) nested event loop notifier w/TkAqua Cocoa (alaoui,steffen)
-
-2009-08-25 (bug fix) [info frame] account for continuation lines (kupries)
-
-2009-08-27 (bug fix)[2845535] overflows in [format] (porter)
-
-2009-09-01 (bug fix) improved error message in tcltest (porter)
-=> tcltest 2.3.2
-
-2009-09-11 (bug fix)[2849860] http handle "quoted" charset value (fellows)
-=> http 2.7.4
-
-2009-10-04 (bug fix)[2569449] Core Foundation memory bug in Tiger (steffen)
-
-2009-10-06 (bug fix)[1941434] broken tclTomMath.h includes (porter)
-
-2009-10-07 (bug fix)[2871908] leaked hash table (mistachkin,kupries)
-
-2009-10-08 (bug fix)[2874678] bignum leak in [dict incr] (fellows)
-
-2009-10-17 (bug fix)[2629338] crash in var unset traces (raney,fellows)
-
-2009-10-19 (bug fix)[2107634] extend [read] and [gets] to Tcl string limits
-(morrison,parker,porter)
-
-2009-10-21 (bug fix)[2882561] Haiku OS signal support (morrison,fellows)
-
-2009-10-24 Broken DST applied EU rules to US zones (lehenbauer,kenny)
-
-2009-10-29 (bug fix)[2800740] halved bignum memory on 64-bit systems (porter)
-	*** POTENTIAL INCOMPATIBILITY ***
-
-2009-11-03 tzdata updated to Olson's tzdata2009q (kenny)
-
-2009-11-03 (bug fix)[2854929] TM search path support in Safe Base (kupries)
-
-2009-11-11 (bug fix)[2888099] [close] loses ENOSPC error (khomoutov,ferrieux)
-
-2009-11-11 (bug fix)[2891171] RFC 3986 compliance for ? in URL (nijtmans)
-=> http 2.7.5
-
-2009-11-12 (bug fix)[2895565] [fcopy -size] miscounts when converting encodings
-(kupries)
-
---- Released 8.5.8, November 16, 2009 --- See ChangeLog for details ---
-
-2009-11-16 (bug fix)[2891556] encoding finalization crash (mistachkin,ferrieux)
-
-2009-12-09 (enhancement) rewrite of the Safe Base commands (kupries)
-
-2009-12-16 (bug fix)[2913616] msgcat: improved safe interp support (fellows)
-=> msgcat 1.4.3
-
-2009-12-23 (bug fix)[2913625] [info script/nameof] in safe interps (fellows)
-
-2009-12-28 (bug fix)[2891362] enable time limit in child interps (fellows)
-
-2009-12-28 (bug fix)[2895741] enable min(), max() in safe interps (fellows)
-
-2010-01-05 (bug fix)[2918610] [file rootname] corruption (magerya,porter)
-
-2010-01-06 (enhancement) Haiku, CYGWIN support improvements (nijtmans)
-
-2010-01-18 (bug fix)[2932421] less [format %s] shimmer (ferrieux)
-
-2010-01-18 (bug fix)[2918110] [chan postevent] crash (bron,kupries)
-
-2010-02-01 (bug fix)[2942697] faster match: some pathological regexp patterns
-(lane,fellows)
-
-2010-02-02 (bug fix)[2939073] [array unset] unset trace crash (ferrieux)
-
-2010-02-02 (bug fix)[2933089] [info frame] shared lit trouble (kupries)
-
-2010-02-11 (bug fix)[2949740] [open |noSuch rb] crash (kovalenko,fellows)
-
-2010-02-11 (bug fix)[2954959] get sign of abs($zero) right (nijtmans)
-
-2010-03-09 (bug fix)[2936225] stop [chan copy] to slow channel consuming all
-memory with buffer backup (ferrieux)
-
-2010-03-20 (enhancement) permit [fcopy] of > 2**31 bytes (fellows)
-
-2010-03-24 (bug fix)[2383005] [return -errorcode] reject non-list (porter)
-
-2010-03-25 (bug fix)[2976504] broken fstatfs() call (reeuwijk,fellows)
-
-2010-03-30 (bug fix)[2978773] refchan mem preservation (kupries)
-
-2010-05-19 (bug fix)[3004007] dict/list shimmer w/o string rep loss (fellows)
-
-2010-06-09 (bug fixes) platform: several fixes for 64 bit systems (kupries)
-=> platform 1.0.9
-
-2010-06-16 (bug fix)[3016135] [clock format] in he_IL locale (nijtmans)
-
-2010-06-28 (bug fix)[3019634] support errno.h changes in MSVC++ 2010 (nijtmans)
-
-2010-07-02 (enhancement) -errorcode for [expr] domain errors (fellows)
-
-2010-07-28 (bug fix)[3037525] crash deleting vars @ callframe pop (sofer)
-
-2010-08-04 (bug fix)[3034840] mem corrupt when refchan loses interp (kupries)
-
-2010-08-04 (enhancement) Win [load] use LOAD_WITH_ALTERED_SEARCH_PATH (hobbs)
-	*** POTENTIAL INCOMPATIBILITY ***
-
-2010-08-12 (bug fix)[2826551] line-sensitive matching in regexp (dejong)
-
-2010-08-19 (bug fix)[3048354] buffer overflow detect in Fortify build (fellows)
-
-2010-08-23 tzdata updated to Olson's tzdata2010l (kenny)
-
-2010-09-01 (bug fix)[3057639] no read traces [lappend arr(elem) ...] (hobbs)
-	*** POTENTIAL INCOMPATIBILITY ***
-
---- Released 8.5.9, September 8, 2010 --- See ChangeLog for details ---
-
-2010-09-24 (bug fix)[3056775] race condition in Win sockets (twylite,kupries)
-
-2010-10-23 (update)[3085863] Update Unicode data to 6.0 (nijtmans)
-
-2010-11-02 Safe Tcl handling of empty path lists (cassoff)
-
-2010-11-03 (bug fix)[3098302] crash in compiled [catch] (kenny)
-
-2010-11-15 (TIP 378)[3081184] improved TIP 280 performance (kupries)
-
-2010-11-30 (enhancement) Restore TclFormatInt for performance (hobbs)
-
-2010-11-30 (enhancement) Tcl_PrintDouble performance improvements (kenny)
-
-2010-12-12 (platform) OpenBSD build improvements (cassoff)
-
-2010-12-17 (platform) Revisions to support rpm 4.4.2 (cassoff)
-
-2011-01-13 (bug fix)[3142026] GrowEvaluationStack OBOE (harder,sofer)
-
-2011-01-19 (bug fix)[3072640] protect writes to ::error* variables (sofer)
-
-2011-03-06 (bug fix)[3200987,3192636] parser buffer overruns (porter)
-
-2011-03-08 (bug fix)[3202905] failed intrep release of interp result (mccormack)
-
-2011-03-09 (bug fix)[3202171] repair [namespace inscope] optimizer (porter)
-
-2011-03-14 (bug fix) Fixes from libtommath 0.42.0 release (fellows)
-
-2011-03-21 (bug fix)[3216070] [load] extension from embed Tcl apps (nijtmans)
-	***POTENTIAL INCOMPATIBILITY***
-
-2011-04-12 (bug fix)[3285472] intrep corruption in [string reverse] (porter)
-
-2011-04-13 (bug fix)[2662380] crash when variable append trace unsets (sofer)
-
-2011-04-13 (bug fix)[3285375] Buffer overflow in [concat] (porter)
-
-2011-05-02 (internals change) revised TclFindElement() interface (porter)
-	*** POTENTIAL INCOMPATIBILITY ***
-
-2011-05-05 (enhancement) dict->list w/o string rep generation (porter)
-
-2011-05-10 (bug fix)[3173086] Crash parsing long lists (rogers,porter)
-
-2011-05-12 (bug fix)[2715421] surplus \n in POST (passadyn,thoyts)
-=> http 2.7.6
-
-2011-05-24 tzdata updated to Olson's tzdata2011g (iyer)
-
-2011-05-25 (enhancement) msgcat internal improvements (fellows)
-=> msgcat 1.4.4
-
-2011-06-02 (bug fix)[3185407] cmd resolution epoch flaw (nadkarni,fellows)
-
-2011-06-13 (bug fix)[3315098] mem leak generating double string rep (neumann)
-
-2011-06-21 (new cmd) [tcltest::loadIntoSlaveInterpreter] (fellows)
-=> tcltest 2.3.3
-
-2011-06-22 (new feature) DEB_HOST_MULTIARCH support (kupries)
-=> platform 1.0.10
-
---- Released 8.5.10, June 23, 2011 --- See ChangeLog for details ---
-
-2011-07-02 (bug fix)[3349507] correct double(1[string repeat 0 23]) (kenny)
-
-2011-07-19 (bug fix)[3371644] Tcl_ConvertElement() segfault (sader, ferrieux)
-
-2011-07-21 (bug fix)[3372130] hypot(.) segfault (nijtmans)
-
-2011-08-12 (bug fix)[3389764] memleaks due to reference cycles in dup'd paths
-
-2011-08-15 (bug fix)[3390272] leak of [info script] value (porter)
-
-2011-08-17 (bug fix)[3393150] bignum leaks in Tcl_Get*() routines (porter)
-
-2011-08-18 (bug fix)[3393714] [string toupper] overflow (nijtmans)
-
-2011-08-30 (bug fix)[3398794] panic in interp limit setting (gavlian,fellows)
-
-2011-09-08 (bug fix)[3401704] revised expr parser to permit function names
-like "nano()" instead of parsing as "nan o()" with missing op (duquette,porter)
-	*** POTENTIAL INCOMPATIBILITY ***
-
-2011-09-13 (bug fix)[3390638] solaris studio cc workaround (kechel,porter)
-
-2011-09-13 (bug fix)[3405652] DTrace workaround (michelson,porter)
-
-2011-09-16 (bug fix)[3391977] -headers overrides -type (ziegenhagen,fellows)
-=> http 2.7.7
-
-2011-09-16 (bug fix)[3400658] wrong num args msg with TclOO (rsooltan,fellows)
-
-2011-10-11 (bug fix)[2935503] [file stat] returns bad mode (nadkarni,nijtmans)
-
-2011-10-15 tzdata updated to Olson's tzdata2011l (iyer)
-
---- Released 8.5.11, November 4, 2011 --- See ChangeLog for details ---
-
-2011-11-22 (bug fix)[3354324] Win: [file mtime] sets wrong time (nijtmans)
-
-2011-11-30 (bug fix)[967195] Simply args passed to child processes (nijtmans)
-=> tcltest 2.3.4
-
-2011-12-07 (bug fix)[3444754] fix [string tolower \u01C5] (nijtmans)
-
-2011-12-11 (update)[3457031] Update [[:print:]] to Unicode 6.0 (nijtmans)
-
-2011-12-24 (bug fix)[3464428] fix [string is graph \u0120] (nijtmans)
-
-2012-01-08 (bug fix)[3470928] zoneinfo trouble with Windhoek data file (kenny)
-
-2012-01-13 (bug fix)[3472316] fix retrieval of socket error (fellows)
-=> http 2.7.8
-
-2012-01-21 (bug fix)[3475667] [regexp] buffer read overflow (sebres)
-
-2012-01-22 (bug fix)[3475264] [dict exists] return 0, not error (fellows)
-
-2012-01-26 (bug fix)[3475569,3479689] mem corrupt in fs path (sebres,porter)
-
-2012-02-02 (bug fix)[2974459,2879351,1951574,1852572,1661378,1613456] Fix
-problems where [file *able] would return false results on Win/Samba (porter)
-
-2012-02-02 (update)[3464401] Support Unicode 6.1 (nijtmans)
-
-2012-02-06 (bug fix)[3484621] bump bytecode epoch on exec traces (kuhn,sofer)
-
-2012-02-09 (bug fix)[3484402] mem corrupt OBOE in unicode append (porter)
-
-2012-02-15 (bug fix)[3487626] crash compiling [dict for] (fellows)
-
-2012-02-17 (bug fix)[2233954] compile problem on AIX & Android (nijtmans)
-
-2012-02-29 (bug fix)[3466099] BOM in Unicode (nijtmans)
-
-2012-03-07 (bug fix)[3498327] RFC 3986 compliance (kupries)
-=> http 2.7.9
-
-2012-04-11 (bug fix)[3448512] [clock scan 1958-01-01] fail on Win (nijtmans)
-
-2012-04-18 tzdata updated to Olson's tzdata2012c (kenny)
-
-2012-05-02 (enhancement) Better use of Intel cpuid instruction (nijtmans)
-
-2012-05-10 (bug fix)[473946] correct send of special characters (nijtmans)
-=> dde 1.3.3
-
-2012-05-17 (bug fix)[2964715] fix [glob] in Safe Base (fellows)
-
-2012-05-17 (bug fix)[3106532] proper [switch -indexvar] values (fellows)
-	*** POTENTIAL INCOMPATIBILITY ***
-
-2012-06-25 (bug fix)[3537605] [encoding dirs a b] error message (fellows)
-
-2012-06-25 (bug fix)[3024359] crash when multi-thread concurrent [file system]
-and Tcl_FSMountsChanged(). (porter)
-
-2012-06-29 (bug fix)[3536888] fix locale guessing (oehlmann,nijtmans)
-=> msgcat 1.4.5
-
-2012-07-05 (bug fix)[1189293] make "<<" redirect binary safe (porter)
-
-2012-07-11 (bug fix)[3362446] [registry keys] failure (nijtmans)
-=> registry 1.2.2
-
-2012-07-16 (bug fix)[3544683] reentrant syscalls on BSD (cassoff,fellows)
-
-2012-07-24 (bug fix) stop mem corruption in stacked channel events (max,porter)
-
-2012-07-25 (bug fix)[3546275] [auto_execok] search match [exec] (danckaert)
-
-Many revisions to better support a Cygwin environment (nijtmans)
-
---- Released 8.5.12, July 27, 2012 --- See ChangeLog for details ---
-
-2012-07-27 (update)[3464401] Support Unicode 6.2 (nijtmans)
-
-2012-08-07 (bug fix)[3554250] fs segfault in thread exit handler (porter)
-
-2012-08-08 (update)[1536227] Cygwin network pathname support (nijtmans)
-
-2012-08-20 (bug fix)[3559678] [file normalize] EIAS failure (phao,dgp)
-
-2012-08-25 (bug fix)[3561330] Ukranian translation of "March" (teterin)
-
-2012-09-11 (bug fix)[3564735] mem corruption w/ Itcl's [variable] (porter)
-
-2012-09-25 (TIP 404) New msgcat commands [mcflset], [mcflmset] (oehlmann)
-=> msgcat 1.5.0
-
-2012-10-03 (bug fix) exit panic on stacked std channel (griffin,porter)
-
-2012-10-14 (bug fix) [tcl::Bgerror] crash on non-dict options (nijtmans)
-
-2012-11-06 (bug fix)[3581754] avoid multiple callback on keep-alive (fellows)
-=> http 2.7.10
-
-2012-11-07 (bug fix)[3574493] hang in Windows socket finalization (fassel)
-
-2012-11-07 tzdata updated to Olson's tzdata2012i (kenny)
-
---- Released 8.5.13, November 12, 2012 --- See ChangeLog for details ---
-
-2012-11-13 (enhancement)[360894] Threads inherit floating point from creator.
-
-2012-11-14 (enhancement)[2933003] compile setting: TCL_TEMPORARY_FILE_DIRECTORY
-
-2012-11-16 (bug fix)[3587651] [info functions] returns complete set. (porter)
-
-2012-12-03 (bug fix) tcltest: Correct legacy auto-init fom $::argv (porter)
-=> tcltest 2.3.5
-
-2012-12-06 (bug fix) Tcl_InitStubs("8.5",1) must reject 8.50. (porter)
-
-2012-12-13 (bug fix)[3595576] mem flaw in [catch {} -> no-such-ns::v] (porter)
-
-2012-12-27 (bug fix)[3598580] Tcl_ListObjReplace() refcount fix (nijtmans)
-
-2013-01-08 (bug fix)[3092089,3587096] [file normalize] on junction points
-
-2013-01-09 (bug fix)[3599395] status line processing (nijtmans)
-2013-01-23 (bug fix)[2911139] repair async connection management (fellows)
-=> http 2.7.11
-
-2013-01-30 (bug fix)[3599098] update to handle glibc banner changes (kupries)
-=> platform 1.0.11
-
-2013-02-05 (bug fix)[3603434] [file normalize a:/] flaw in VFS (porter,griffin)
-
-2013-02-14 (bug fix)[3604576] msgcat use of Windows registry (oehlmann,nijtmans)
-=> msgcat 1.5.1
-
-2013-02-19 (bug fix)[2438181] report errors in trace handlers (yorick)
-
-2013-02-21 (bug fix)[3605447] unbreak [namespace export -clear] (porter)
-
-2013-02-27 (bug fix)[3606139] stop crash in [regexp] (lane)
-
-2013-03-06 (bug fix)[3606683] [regexp (((((a)*)*)*)*)* {}] hangs
-(grathwohl,lane,porter)
-
-2013-03-12 (enhancement) better build support for Debian arch (shadura)
-
-2013-03-19 (bug fix)[2893771] [file stat] on locked files (thoyts,nijtmans)
-
-2013-03-21 (bug fix)[2102614] [auto_mkindex] ensemble support (griffin)
-
-2013-03-22 tzdata updated to Olson's tzdata2013b (venkat)
-
---- Released 8.5.14, April 3, 2013 --- See ChangeLog for details ---
-
-2013-04-03 (bug fix)[3205320] outsmart gcc on powerpc detect stack direction
-
-2013-04-04 (bug fix) Support URLs with query but no path (max)
-=> http 2.7.12
-
-2013-04-08 (bug fix)[3610026] regexp crash on color overflow (linnakangas)
-
-2013-04-16 (bug fix)[3610404] crash in enter traces (found with TclOO) (porter)
-
-2013-04-30 (enhancement) broaden glibc version detection (kupries)
-=> platform 1.0.12
-
-2013-05-01 (bug fix)[2901998] inconsistent I/O buffering (ferrieux)
-
-2013-05-06 (platform support) Cygwin64 (nijtmans)
-
-2013-05-16 (platform support) mingw-4.0 (nijtmans)
-
-2013-05-19 (platform support) FreeBSD updates (cerutti)
-
-2013-05-22 (bug fix)[3613609] [lsort -nocase] failed on non-ASCII (fellows)
-
-2013-05-28 (bug fix)[3036566] Use language packs (Vista+) locale (oehlmann)
-=> msgcat 1.5.2
-
-2013-06-03 Restored lost performance appending to long strings (elby,porter)
-
-2013-06-17 (bug fix)[a876646] [:cntrl:] includes \x00 to \x1f (nijtmans)
-
-2013-06-17 [string is space \u180e] => 1 (nijtmans)
-
-2013-06-27 (bug fix)[983509] missing encodings for config values (nijtmans)
-
-2013-06-27 (bug fix)[34538b] apply DST in 2099 (lang)
-
-2013-07-02 (bug fix)[32afa6] corrected dirent64 check (griffin)
-
-2013-07-06 tzdata updated to Olson's tzdata2013d (kenny)
-
-2013-07-26 (bug fix)[6585b2] regexp {(\w).*?\1} abb (lane)
-
-2013-07-29 [string is space \u202f] => 1 (nijtmans)
-
-2013-08-01 [a0bc85] Limited support for fork with threads (for Rivet) (nijtmans)
-
-2013-08-14 (bug fix)[a16752] Missing command delete callbacks (porter)
-
-2013-08-15 Errors from execution traces become errors of the command (porter)
-
-2013-09-07 (bug fix) stop crashes in tclcompiler (kupries,porter)
-
-2013-09-07 (bug fix)[86ceb4] have tm path favor first provider (neumann,porter)
-
-2013-09-13 (bug fix)[bdd91c] crash in exec stack mem management (azazel)
-
---- Released 8.5.15, September 16, 2013 --- https://core.tcl-lang.org/tcl/ for details
-
-2013-09-19 (bug fix)[3487626] segfaults in [dict] compilers (porter)
-
-2013-09-19 (bug fix) [info frame] line OBOEs in bytecode (porter)
-
-2013-09-25 (bug fix)[d614d63] namespace matching *:: deletion fail (fellows)
-
-2013-10-22 (bug fix)[3556215] [scan %E%G%X] support (fellows)
-
-2013-10-25 (bug fix)[3eb2ec1] upper case scheme names in url. (nijtmans)
-=> http 2.7.13
-
-2013-10-29 (bug fix)[414d103] HP-UX: restore [exec] in threaded Tcl (nijtmans)
-
-2013-11-04 (bug fix) C++ friendly stubs struct declarations (nijtmans)
-
-2013-11-05 (bug fix)[426679e] OpenBSD man page rendering (nijtmans)
-
-2013-11-20 (bug fix) Improved environment variable management (nijtmans)
-=> tcltest 2.3.7
-
-2013-11-21 (platforms) Support for Windows 8.1 (nijtmans)
-
-2014-02-06 (bug fix)[a4494e2] panic in test namespace-13.2 (porter)
-
-2014-02-24 (bug fix)[2413550] Win: avoid serial double open (schroeter)
-
-2014-03-20 (bug fix)[2f7cbd0] FreeBSD 10.0 build failure (nijtmans)
-
-2014-03-27 (bug fix) segfault iocmd-23.11 (porter)
-
-2014-04-02 (bug fix)[336441e] Win: async socket connect stall (oehlmann)
-
-2014-04-04 (bug fix)[581937a,97069ea] async socket connect fail (oehlmann)
-
-2014-04-10 (bug fix)[792641f] Win: no \ in normalized path (nijtmans)
-
-2014-04-15 (bug fix)[88aef05] segfault iocmd-21.20 (porter)
-
-2014-04-16 (update) Win: use Winsock 2.2 (nijtmans)
-
-2014-04-16 (bug fix)[d19a30d] segfault clock-67.[23] (sebres)
-
-2014-04-21 (bug fix) segfault iocmd-21.2[12] (porter)
-
-2014-04-22 (bug fix) segfault iogt-2.4 (porter)
-
-2014-04-23 (bug fix)[3493120] memleak in thread exit
-
-2014-04-30 (bug fix) segfault iocmd-21.2[34] (porter)
-
-2014-05-01 (bug fix)[0e92c40] bytearray optimization validity (nijtmans)
-
-2014-05-06 (bug fix) segfault iogt-2.5 (porter)
-
-2014-05-06 (memleaks) io-29.27 io-29.34 io-33.7 (porter)
-
-2014-05-07 (memleaks) io-53.5, cloned Tcl_ChannelTypes (porter)
-
-2014-05-08 (memleak) iocmd-21.22 (porter)
-
-2014-05-08 refactoring of core I/O functions (porter)
-
-2014-05-09 (bug fix) segfault iocmd-32.1 (porter)
-
-2014-05-15 (bug fix)[3118489] protect NUL in filenames (nijtmans)
-
-2014-05-16 (bug fix) Fix for failing tests *io-32.11* (porter)
-
-2014-05-20 (bug fix) Stop eof and blocked state leaking thru stacks (porter)
-	*** POTENTIAL INCOMPATIBILITY ***
-
-2014-05-22 (platforms) work around systems that fail when a shared library
-is deleted after it is [load]ed (kupries)
-
-2014-05-31 (bug fix) chan events on pipes must be on proper ends (porter)
-
-2014-06-04 (bug fix) socket-2.12 (porter)
-
-2014-06-05 (bug fix) io-12.6 (kupries,porter)
-
-2014-06-16 (bug fix) socket-2.13 workaround broken select() (porter)
-
-2014-06-20 (bug fix)[b47b176] iortrans.tf-11.0 (porter)
-
-2014-06-22 (RFE)[2f9df4c] -cleanup scripts before -out compare (nijtmans)
-
-2014-07-04 (update) Update Unicode data to 7.0 (nijtmans)
-	*** POTENTIAL INCOMPATIBILITY ***
-
-2014-07-10 (bug fix)[7368d2] memleak Tcl_SetVar2(..,TCL_APPEND_VALUE) (porter)
-	*** POTENTIAL INCOMPATIBILITY ***
-
-2014-08-01 (enhancement) use refcounts, not Tcl_Preserve to manage lifetime
-of Tcl_Channel  (porter)
-	*** POTENTIAL INCOMPATIBILITY ***
-
-2014-08-01 (update) "macosx*-i386-x86_64" "macosx-universal" no longer compatible (kupries)
-=> platform 1.0.13
-
-2014-08-12 tzdata updated to Olson's tzdata2014f (kenny)
-
---- Released 8.5.16, August 25, 2014 --- https://core.tcl-lang.org/tcl/ for details
-
-2014-10-02 (bug)[bc5b79] Hang in some [read]s of limited size (rogers,porter)
-
-2014-10-08 (bug)[59a2e7] MSVC14 compile support (dower,nijtmans)
-
-2014-10-10 (bug)[ed29c4] [fcopy] treats [blocked] as error (rowen,porter)
-
-2014-10-10 (bug)[bf7135] regression in Tcl_Write() interface (porter)
-
-2014-10-18 (bug)[10dc6d] fix [gets] on non-blocking channels (fassel,porter)
-
---- Released 8.5.17, October 25, 2014 --- https://core.tcl-lang.org/tcl/ for details
-
-2014-10-26 Support for Windows 10 (nijtmans)
-
-2014-10-31 (bug)[dcc034] restore [open comX: r+] (lll,nijtmans)
-
-2014-11-06 (bug)[5adc35] Stop forcing EOF to be permanent (porter)
-
-2014-12-03 (bug)[0c043a] Fix compiled [set var($) val] (porter)
-
-2014-12-04 (bug)[d2ffcc] Limit $... and bareword parsing to ASCII (ladayaroslav,porter)
-	*** POTENTIAL INCOMPATIBILITY ***
-
-2014-12-10 tzdata updated to Olson's tzdata2014j (venkat)
-
-2015-01-26 (bug)[df0848] Trouble with INFINITY macro (dower,nijtmans)
-
-2015-01-29 (bug) Stop crashes when extension var resolvers misbehave (porter)
-
-2015-02-05 (bug) Plug stacked channel memleak (porter)
-
-2015-02-11 tzdata updated to Olson's tzdata2015a (venkat)
-
---- Released 8.5.18, March 6, 2015 --- https://core.tcl-lang.org/tcl/ for details
-
-2015-03-10 (bug)[3028676] Refinement in OS X notifier (steffen,walzer,lars_h)
-
-2015-04-23 (bug)[19ea02] Win: shared read from linked dirs (bogdan,oehhar)
-
-2015-04-24 (bug)[879a07] Incomplete chars @ buffer ends (leunissen,porter)
-
-2015-04-29 (bug)[894da1] Hang flushing blocking channels (yorick)
-
-2015-05-27 (enhancement) Relax memdebug constraint on extensions (kupries)
-
-2015-06-16 (bug)[e770d9] Higher baud on serial channels (woods,nijtmans)
-
-2015-06-18 (update) Update Unicode data to 8.0 (nijtmans)
-	*** POTENTIAL INCOMPATIBILITY ***
-
-2015-07-15 (bug)[b1534b][9bad63] writes beyond buffer bounds (hanno,porter)
-
-2015-07-29 (bug)[3e7eca] Allocation overflow in expr parsing (rickyb,porter)
-
-2015-08-12 tzdata updated to Olson's tzdata2015f (venkat)
-
-2015-08-19 (bug)[00189c] MSVC 14: semi-static UCRT support (dower,nijtmans)
-
-2015-08-26 (bug)[0df7a1] Tolerate getcwd() failures (cato,nijtmans)
-
-2015-09-23 (bug)[e0a7b3] Input buffer draining & file events (griffin,porter)
-
-2015-09-24 (bug)[57945b] lock in forking/multi-threading (neumann,mistachkin)
-
-2015-09-29 (bug)[219866] Cygwin support error (yorick,nijtmans)
-=> platform 1.0.14
-
-2015-10-06 (bug)[b42a85] Win: [file normalize ~user] wrong dir (nadkarni)
-
-2015-10-21 (bug)[818a1a][a3c350][d7ea9f][8f2450][1080042] Many fixes and
-improvements to regexp engine from Postgres (lane,porter,fellows,seltenreich)
-
-2015-11-10 (bug)[261a8a] Overflow segfault in I/O translation (brooks,porter)
-
-2015-11-20 (bug)[3293874] let lists grow all the way to the limit (porter)
-
-2015-11-20 (bug)[40f628] ListObjReplace callers fail to detect max (porter)
-
-2015-12-11 (bug)[c9eb6b] tolerate unset ::env(TZ) (gahr, nijtmans)
-
-2016-01-29 (TIP 440) tcl_platform(engine) -- Tcl implementation (mistachkin)
-
---- Released 8.5.19, February 12, 2016 --- https://core.tcl-lang.org/tcl/ for details
diff --git a/changes.md b/changes.md
new file mode 100644
index 0000000..c6a3829
--- /dev/null
+++ b/changes.md
@@ -0,0 +1,15 @@
+
+The source code for Tcl is managed by fossil.  Tcl developers coordinate all
+changes to the Tcl source code at
+
+> [Tcl Source Code](https://core.tcl-lang.org/tcl/timeline)
+
+Release Tcl 9.1a0 arises from the check-in with tag `core-9-1-a0`.
+
+Highlighted differences between Tcl 9.1 and Tcl 9.0 are summarized below,
+with focus on changes important to programmers using the Tcl library and
+writing Tcl scripts.
+
+# Bug fixes
+ - [tclEpollNotfy PlatformEventsControl panics if websocket disconnected](https://core.tcl-lang.org/tcl/tktview/010d8f38)
+
diff --git a/compat/dirent.h b/compat/dirent.h
deleted file mode 100644
index fa6222a..0000000
--- a/compat/dirent.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * dirent.h --
- *
- *	This file is a replacement for <dirent.h> in systems that
- *	support the old BSD-style <sys/dir.h> with a "struct direct".
- *
- * Copyright (c) 1991 The Regents of the University of California.
- * Copyright (c) 1994 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#ifndef _DIRENT
-#define _DIRENT
-
-#include <sys/dir.h>
-
-#define dirent direct
-
-#endif /* _DIRENT */
diff --git a/compat/dirent2.h b/compat/dirent2.h
deleted file mode 100644
index 5be08ba..0000000
--- a/compat/dirent2.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * dirent.h --
- *
- *	Declarations of a library of directory-reading procedures
- *	in the POSIX style ("struct dirent").
- *
- * Copyright (c) 1991 The Regents of the University of California.
- * Copyright (c) 1994 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#ifndef _DIRENT
-#define _DIRENT
-
-/*
- * Dirent structure, which holds information about a single
- * directory entry.
- */
-
-#define MAXNAMLEN 255
-#define DIRBLKSIZ 512
-
-struct dirent {
-    long d_ino;			/* Inode number of entry */
-    short d_reclen;		/* Length of this record */
-    short d_namlen;		/* Length of string in d_name */
-    char d_name[MAXNAMLEN + 1];	/* Name must be no longer than this */
-};
-
-/*
- * State that keeps track of the reading of a directory (clients
- * should never look inside this structure;  the fields should
- * only be accessed by the library procedures).
- */
-
-typedef struct _dirdesc {
-    int dd_fd;
-    long dd_loc;
-    long dd_size;
-    char dd_buf[DIRBLKSIZ];
-} DIR;
-
-/*
- * Procedures defined for reading directories:
- */
-
-extern void		closedir (DIR *dirp);
-extern DIR *		opendir (char *name);
-extern struct dirent *	readdir (DIR *dirp);
-
-#endif /* _DIRENT */
diff --git a/compat/fake-rfc2553.c b/compat/fake-rfc2553.c
new file mode 100644
index 0000000..066f83f
--- /dev/null
+++ b/compat/fake-rfc2553.c
@@ -0,0 +1,267 @@
+/*
+ * Copyright (C) 2000-2003 Damien Miller.  All rights reserved.
+ * Copyright (C) 1999 WIDE Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Pseudo-implementation of RFC2553 name / address resolution functions
+ *
+ * But these functions are not implemented correctly. The minimum subset
+ * is implemented for ssh use only. For example, this routine assumes
+ * that ai_family is AF_INET. Don't use it for another purpose.
+ */
+#include "tclInt.h"
+
+TCL_DECLARE_MUTEX(netdbMutex)
+
+#ifndef HAVE_GETNAMEINFO
+#ifndef HAVE_STRLCPY
+static size_t
+strlcpy(char *dst, const char *src, size_t siz)
+{
+	char *d = dst;
+	const char *s = src;
+	size_t n = siz;
+
+	/* Copy as many bytes as will fit */
+	if (n != 0 && --n != 0) {
+		do {
+			if ((*d++ = *s++) == 0)
+				break;
+		} while (--n != 0);
+	}
+
+	/* Not enough room in dst, add NUL and traverse rest of src */
+	if (n == 0) {
+		if (siz != 0)
+			*d = '\0';	      /* NUL-terminate dst */
+		while (*s++)
+			;
+	}
+
+	return(s - src - 1);    /* count does not include NUL */
+}
+#endif
+
+int fake_getnameinfo(const struct sockaddr *sa, size_t salen, char *host,
+	size_t hostlen, char *serv, size_t servlen, int flags)
+{
+	struct sockaddr_in *sin = (struct sockaddr_in *)sa;
+	struct hostent *hp;
+	char tmpserv[16];
+	(void)salen;
+
+	if (sa->sa_family != AF_UNSPEC && sa->sa_family != AF_INET)
+		return (EAI_FAMILY);
+	if (serv != NULL) {
+		snprintf(tmpserv, sizeof(tmpserv), "%d", ntohs(sin->sin_port));
+		if (strlcpy(serv, tmpserv, servlen) >= servlen)
+			return (EAI_MEMORY);
+	}
+
+	if (host != NULL) {
+		if (flags & NI_NUMERICHOST) {
+			size_t len;
+			Tcl_MutexLock(&netdbMutex);
+			len = strlcpy(host, inet_ntoa(sin->sin_addr), hostlen);
+			Tcl_MutexUnlock(&netdbMutex);
+			if (len >= hostlen) {
+				return (EAI_MEMORY);
+			} else {
+				return (0);
+			}
+		} else {
+			int ret;
+			Tcl_MutexLock(&netdbMutex);
+			hp = gethostbyaddr((char *)&sin->sin_addr,
+			    sizeof(struct in_addr), AF_INET);
+			if (hp == NULL) {
+				ret = EAI_NODATA;
+			} else if (strlcpy(host, hp->h_name, hostlen)
+				   >= hostlen) {
+				ret = EAI_MEMORY;
+			} else {
+				ret = 0;
+			}
+			Tcl_MutexUnlock(&netdbMutex);
+			return ret;
+		}
+	}
+	return (0);
+}
+#endif /* !HAVE_GETNAMEINFO */
+
+#ifndef HAVE_GAI_STRERROR
+const char *
+fake_gai_strerror(int err)
+{
+	switch (err) {
+	case EAI_NODATA:
+		return ("no address associated with name");
+	case EAI_MEMORY:
+		return ("memory allocation failure.");
+	case EAI_NONAME:
+		return ("nodename nor servname provided, or not known");
+	case EAI_FAMILY:
+		return ("ai_family not supported");
+	default:
+		return ("unknown/invalid error.");
+	}
+}
+#endif /* !HAVE_GAI_STRERROR */
+
+#ifndef HAVE_FREEADDRINFO
+void
+fake_freeaddrinfo(struct addrinfo *ai)
+{
+	struct addrinfo *next;
+
+	for(; ai != NULL;) {
+		next = ai->ai_next;
+		free(ai);
+		ai = next;
+	}
+}
+#endif /* !HAVE_FREEADDRINFO */
+
+#ifndef HAVE_GETADDRINFO
+static struct
+addrinfo *malloc_ai(int port, u_long addr, const struct addrinfo *hints)
+{
+	struct addrinfo *ai;
+
+	ai = (struct addrinfo *)malloc(sizeof(*ai) + sizeof(struct sockaddr_in));
+	if (ai == NULL)
+		return (NULL);
+
+	memset(ai, '\0', sizeof(*ai) + sizeof(struct sockaddr_in));
+
+	ai->ai_addr = (struct sockaddr *)(ai + 1);
+	/* XXX -- ssh doesn't use sa_len */
+	ai->ai_addrlen = sizeof(struct sockaddr_in);
+	ai->ai_addr->sa_family = ai->ai_family = AF_INET;
+
+	((struct sockaddr_in *)(ai)->ai_addr)->sin_port = port;
+	((struct sockaddr_in *)(ai)->ai_addr)->sin_addr.s_addr = addr;
+
+	/* XXX: the following is not generally correct, but does what we want */
+	if (hints->ai_socktype)
+		ai->ai_socktype = hints->ai_socktype;
+	else
+		ai->ai_socktype = SOCK_STREAM;
+
+	if (hints->ai_protocol)
+		ai->ai_protocol = hints->ai_protocol;
+
+	return (ai);
+}
+
+int
+fake_getaddrinfo(const char *hostname, const char *servname,
+    const struct addrinfo *hints, struct addrinfo **res)
+{
+	struct hostent *hp;
+	struct servent *sp;
+	struct in_addr in;
+	int i;
+	long int port;
+	u_long addr;
+
+	port = 0;
+	if (hints && hints->ai_family != AF_UNSPEC &&
+	    hints->ai_family != AF_INET)
+		return (EAI_FAMILY);
+	if (servname != NULL) {
+		char *cp;
+
+		port = strtol(servname, &cp, 10);
+		if (port > 0 && port <= 65535 && *cp == '\0')
+			port = htons((unsigned short)port);
+		else if ((sp = getservbyname(servname, NULL)) != NULL)
+			port = sp->s_port;
+		else
+			port = 0;
+	}
+
+	if (hints && hints->ai_flags & AI_PASSIVE) {
+		addr = htonl(0x00000000);
+		if (hostname && inet_aton(hostname, &in) != 0)
+			addr = in.s_addr;
+		*res = malloc_ai(port, addr, hints);
+		if (*res == NULL)
+			return (EAI_MEMORY);
+		return (0);
+	}
+
+	if (!hostname) {
+		*res = malloc_ai(port, htonl(0x7F000001), hints);
+		if (*res == NULL)
+			return (EAI_MEMORY);
+		return (0);
+	}
+
+	if (inet_aton(hostname, &in)) {
+		*res = malloc_ai(port, in.s_addr, hints);
+		if (*res == NULL)
+			return (EAI_MEMORY);
+		return (0);
+	}
+
+	/* Don't try DNS if AI_NUMERICHOST is set */
+	if (hints && hints->ai_flags & AI_NUMERICHOST)
+		return (EAI_NONAME);
+
+	Tcl_MutexLock(&netdbMutex);
+	hp = gethostbyname(hostname);
+	if (hp && hp->h_name && hp->h_name[0] && hp->h_addr_list[0]) {
+		struct addrinfo *cur, *prev;
+
+		cur = prev = *res = NULL;
+		for (i = 0; hp->h_addr_list[i]; i++) {
+			struct in_addr *in = (struct in_addr *)hp->h_addr_list[i];
+
+			cur = malloc_ai(port, in->s_addr, hints);
+			if (cur == NULL) {
+				if (*res != NULL)
+					freeaddrinfo(*res);
+				Tcl_MutexUnlock(&netdbMutex);
+				return (EAI_MEMORY);
+			}
+			if (prev)
+				prev->ai_next = cur;
+			else
+				*res = cur;
+
+			prev = cur;
+		}
+		Tcl_MutexUnlock(&netdbMutex);
+		return (0);
+	}
+	Tcl_MutexUnlock(&netdbMutex);
+	return (EAI_NODATA);
+}
+#endif /* !HAVE_GETADDRINFO */
diff --git a/compat/fake-rfc2553.h b/compat/fake-rfc2553.h
new file mode 100644
index 0000000..6413170
--- /dev/null
+++ b/compat/fake-rfc2553.h
@@ -0,0 +1,170 @@
+/*
+ * Copyright (C) 2000-2003 Damien Miller.  All rights reserved.
+ * Copyright (C) 1999 WIDE Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Pseudo-implementation of RFC2553 name / address resolution functions
+ *
+ * But these functions are not implemented correctly. The minimum subset
+ * is implemented for ssh use only. For example, this routine assumes
+ * that ai_family is AF_INET. Don't use it for another purpose.
+ */
+
+#ifndef _FAKE_RFC2553_H
+#define _FAKE_RFC2553_H
+
+/*
+ * First, socket and INET6 related definitions
+ */
+#ifndef HAVE_STRUCT_SOCKADDR_STORAGE
+# define	_SS_MAXSIZE	128	/* Implementation specific max size */
+# define       _SS_PADSIZE     (_SS_MAXSIZE - sizeof (struct sockaddr))
+struct sockaddr_storage {
+	struct sockaddr	ss_sa;
+	char		__ss_pad2[_SS_PADSIZE];
+};
+# define ss_family ss_sa.sa_family
+#endif /* !HAVE_STRUCT_SOCKADDR_STORAGE */
+
+#ifndef IN6_IS_ADDR_LOOPBACK
+# define IN6_IS_ADDR_LOOPBACK(a) \
+	(((uint32_t *)(a))[0] == 0 && ((uint32_t *)(a))[1] == 0 && \
+	 ((uint32_t *)(a))[2] == 0 && ((uint32_t *)(a))[3] == htonl(1))
+#endif /* !IN6_IS_ADDR_LOOPBACK */
+
+#ifndef HAVE_STRUCT_IN6_ADDR
+struct in6_addr {
+	uint8_t	s6_addr[16];
+};
+#endif /* !HAVE_STRUCT_IN6_ADDR */
+
+#ifndef HAVE_STRUCT_SOCKADDR_IN6
+struct sockaddr_in6 {
+	unsigned short	sin6_family;
+	uint16_t	sin6_port;
+	uint32_t	sin6_flowinfo;
+	struct in6_addr	sin6_addr;
+	uint32_t	sin6_scope_id;
+};
+#endif /* !HAVE_STRUCT_SOCKADDR_IN6 */
+
+#ifndef AF_INET6
+/* Define it to something that should never appear */
+#define AF_INET6 AF_MAX
+#endif
+
+/*
+ * Next, RFC2553 name / address resolution API
+ */
+
+#ifndef NI_NUMERICHOST
+# define NI_NUMERICHOST    (1)
+#endif
+#ifndef NI_NAMEREQD
+# define NI_NAMEREQD       (1<<1)
+#endif
+#ifndef NI_NUMERICSERV
+# define NI_NUMERICSERV    (1<<2)
+#endif
+
+#ifndef AI_PASSIVE
+# define AI_PASSIVE		(1)
+#endif
+#ifndef AI_CANONNAME
+# define AI_CANONNAME		(1<<1)
+#endif
+#ifndef AI_NUMERICHOST
+# define AI_NUMERICHOST		(1<<2)
+#endif
+
+#ifndef NI_MAXSERV
+# define NI_MAXSERV 32
+#endif /* !NI_MAXSERV */
+#ifndef NI_MAXHOST
+# define NI_MAXHOST 1025
+#endif /* !NI_MAXHOST */
+
+#ifndef EAI_NODATA
+# define EAI_NODATA	(INT_MAX - 1)
+#endif
+#ifndef EAI_MEMORY
+# define EAI_MEMORY	(INT_MAX - 2)
+#endif
+#ifndef EAI_NONAME
+# define EAI_NONAME	(INT_MAX - 3)
+#endif
+#ifndef EAI_SYSTEM
+# define EAI_SYSTEM	(INT_MAX - 4)
+#endif
+#ifndef EAI_FAMILY
+# define EAI_FAMILY	(INT_MAX - 5)
+#endif
+#ifndef EAI_SERVICE
+# define EAI_SERVICE      -8    /* SERVICE not supported for `ai_socktype'.  */
+#endif
+
+#ifndef HAVE_STRUCT_ADDRINFO
+struct addrinfo {
+	int	ai_flags;	/* AI_PASSIVE, AI_CANONNAME */
+	int	ai_family;	/* PF_xxx */
+	int	ai_socktype;	/* SOCK_xxx */
+	int	ai_protocol;	/* 0 or IPPROTO_xxx for IPv4 and IPv6 */
+	size_t	ai_addrlen;	/* length of ai_addr */
+	char	*ai_canonname;	/* canonical name for hostname */
+	struct sockaddr *ai_addr;	/* binary address */
+	struct addrinfo *ai_next;	/* next structure in linked list */
+};
+#endif /* !HAVE_STRUCT_ADDRINFO */
+
+#ifndef HAVE_GETADDRINFO
+#ifdef getaddrinfo
+# undef getaddrinfo
+#endif
+#define getaddrinfo(a,b,c,d)    (fake_getaddrinfo(a,b,c,d))
+int getaddrinfo(const char *, const char *,
+    const struct addrinfo *, struct addrinfo **);
+#endif /* !HAVE_GETADDRINFO */
+
+#ifndef HAVE_GAI_STRERROR
+#define gai_strerror(a)         (fake_gai_strerror(a))
+const char *gai_strerror(int);
+#endif /* !HAVE_GAI_STRERROR */
+
+#ifndef HAVE_FREEADDRINFO
+#define freeaddrinfo(a)         (fake_freeaddrinfo(a))
+void freeaddrinfo(struct addrinfo *);
+#endif /* !HAVE_FREEADDRINFO */
+
+#ifndef HAVE_GETNAMEINFO
+#define getnameinfo(a,b,c,d,e,f,g) (fake_getnameinfo(a,b,c,d,e,f,g))
+int getnameinfo(const struct sockaddr *, size_t, char *, size_t,
+    char *, size_t, int);
+#endif /* !HAVE_GETNAMEINFO */
+
+
+#endif /* !_FAKE_RFC2553_H */
diff --git a/compat/fixstrtod.c b/compat/fixstrtod.c
deleted file mode 100644
index 63fb8ef..0000000
--- a/compat/fixstrtod.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * fixstrtod.c --
- *
- *	Source code for the "fixstrtod" procedure.  This procedure is
- *	used in place of strtod under Solaris 2.4, in order to fix
- *	a bug where the "end" pointer gets set incorrectly.
- *
- * Copyright (c) 1995 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#include <stdio.h>
-
-#undef strtod
-
-/*
- * Declare strtod explicitly rather than including stdlib.h, since in
- * somes systems (e.g. SunOS 4.1.4) stdlib.h doesn't declare strtod.
- */
-
-extern double strtod(char *, char **);
-
-double
-fixstrtod(
-    char *string,
-    char **endPtr)
-{
-    double d;
-    d = strtod(string, endPtr);
-    if ((endPtr != NULL) && (*endPtr != string) && ((*endPtr)[-1] == 0)) {
-	*endPtr -= 1;
-    }
-    return d;
-}
diff --git a/compat/float.h b/compat/float.h
deleted file mode 100644
index 411edbf..0000000
--- a/compat/float.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * float.h --
- *
- *	This is a dummy header file to #include in Tcl when there
- *	is no float.h in /usr/include.  Right now this file is empty:
- *	Tcl contains #ifdefs to deal with the lack of definitions;
- *	all it needs is for the #include statement to work.
- *
- * Copyright (c) 1993 The Regents of the University of California.
- * Copyright (c) 1994 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
diff --git a/compat/limits.h b/compat/limits.h
deleted file mode 100644
index 2cb082b..0000000
--- a/compat/limits.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * limits.h --
- *
- *	This is a dummy header file to #include in Tcl when there
- *	is no limits.h in /usr/include.  There are only a few
- *	definitions here;  also see tclPort.h, which already
- *	#defines some of the things here if they're not arleady
- *	defined.
- *
- * Copyright (c) 1991 The Regents of the University of California.
- * Copyright (c) 1994 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#define LONG_MIN		0x80000000
-#define LONG_MAX		0x7fffffff
-#define INT_MIN			0x80000000
-#define INT_MAX			0x7fffffff
-#define SHRT_MIN		0x8000
-#define SHRT_MAX		0x7fff
diff --git a/compat/memcmp.c b/compat/memcmp.c
deleted file mode 100644
index c4e25a8..0000000
--- a/compat/memcmp.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * memcmp.c --
- *
- *	Source code for the "memcmp" library routine.
- *
- * Copyright (c) 1998 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution of
- * this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#include "tclPort.h"
-
-/*
- * Here is the prototype just in case it is not included in tclPort.h.
- */
-
-int		memcmp(const void *s1, const void *s2, size_t n);
-
-/*
- *----------------------------------------------------------------------
- *
- * memcmp --
- *
- *	Compares two bytes sequences.
- *
- * Results:
- *	Compares its arguments, looking at the first n bytes (each interpreted
- *	as an unsigned char), and returns an integer less than, equal to, or
- *	greater than 0, according as s1 is less than, equal to, or greater
- *	than s2 when taken to be unsigned 8 bit numbers.
- *
- * Side effects:
- *	None.
- *
- *----------------------------------------------------------------------
- */
-
-int
-memcmp(
-    const void *s1,		/* First string. */
-    const void *s2,		/* Second string. */
-    size_t n)			/* Length to compare. */
-{
-    const unsigned char *ptr1 = (const unsigned char *) s1;
-    const unsigned char *ptr2 = (const unsigned char *) s2;
-
-    for ( ; n-- ; ptr1++, ptr2++) {
-	unsigned char u1 = *ptr1, u2 = *ptr2;
-
-	if (u1 != u2) {
-	    return (u1-u2);
-	}
-    }
-    return 0;
-}
-
-/*
- * Local Variables:
- * mode: c
- * c-basic-offset: 4
- * fill-column: 78
- * End:
- */
diff --git a/compat/mkstemp.c b/compat/mkstemp.c
new file mode 100644
index 0000000..feccfbb
--- /dev/null
+++ b/compat/mkstemp.c
@@ -0,0 +1,79 @@
+/*
+ * mkstemp.c --
+ *
+ *	Source code for the "mkstemp" library routine.
+ *
+ * Copyright (c) 2009 Donal K. Fellows
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * mkstemp --
+ *
+ *	Create an open temporary file from a template.
+ *
+ * Results:
+ *	A file descriptor, or -1 (with errno set) in the case of an error.
+ *
+ * Side effects:
+ *	The template is updated to contain the real filename.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+mkstemp(
+    char *tmpl)		/* Template for filename. */
+{
+    static const char alphanumerics[] =
+	"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+    char *a, *b;
+    int fd, count, alphanumericsLen = strlen(alphanumerics); /* == 62 */
+
+    a = tmpl + strlen(tmpl);
+    while (a > tmpl && *(a-1) == 'X') {
+	a--;
+    }
+
+    if (a == tmpl) {
+	errno = ENOENT;
+	return -1;
+    }
+
+    /*
+     * We'll only try up to 10 times; after that, we're suffering from enemy
+     * action and should let the caller know.
+     */
+
+    count = 10;
+    do {
+	/*
+	 * Replace the X's in the original template with random alphanumeric
+	 * digits.
+	 */
+
+	for (b=a ; *b ; b++) {
+	    float r = rand() / ((float) RAND_MAX);
+
+	    *b = alphanumerics[(int)(r * alphanumericsLen)];
+	}
+
+	/*
+	 * Template is now realized; try to open (with correct options).
+	 */
+
+	fd = open(tmpl, O_RDWR|O_CREAT|O_EXCL, 0600);
+    } while (fd == -1 && errno == EEXIST && --count > 0);
+
+    return fd;
+}
diff --git a/compat/opendir.c b/compat/opendir.c
deleted file mode 100644
index 25a7ada..0000000
--- a/compat/opendir.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * opendir.c --
- *
- *	This file provides dirent-style directory-reading procedures for V7
- *	Unix systems that don't have such procedures. The origin of this code
- *	is unclear, but it seems to have come originally from Larry Wall.
- */
-
-#include "tclInt.h"
-
-#undef DIRSIZ
-#define DIRSIZ(dp) \
-    ((sizeof(struct dirent) - (MAXNAMLEN+1)) + (((dp)->d_namlen+1 + 3) &~ 3))
-
-/*
- * open a directory.
- */
-
-DIR *
-opendir(
-    char *name)
-{
-    DIR *dirp;
-    int fd;
-    const char *myname;
-
-    myname = ((*name == '\0') ? "." : name);
-    if ((fd = open(myname, 0, 0)) == -1) {
-	return NULL;
-    }
-    dirp = (DIR *) ckalloc(sizeof(DIR));
-    if (dirp == NULL) {
-	/* unreachable? */
-	close(fd);
-	return NULL;
-    }
-    dirp->dd_fd = fd;
-    dirp->dd_loc = 0;
-    return dirp;
-}
-
-/*
- * read an old style directory entry and present it as a new one
- */
-#ifndef pyr
-#define	ODIRSIZ	14
-
-struct olddirect {
-    ino_t od_ino;
-    char od_name[ODIRSIZ];
-};
-#else	/* a Pyramid in the ATT universe */
-#define	ODIRSIZ	248
-
-struct olddirect {
-    long od_ino;
-    short od_fill1, od_fill2;
-    char od_name[ODIRSIZ];
-};
-#endif
-
-/*
- * get next entry in a directory.
- */
-
-struct dirent *
-readdir(
-    DIR *dirp)
-{
-    struct olddirect *dp;
-    static struct dirent dir;
-
-    for (;;) {
-	if (dirp->dd_loc == 0) {
-	    dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ);
-	    if (dirp->dd_size <= 0) {
-		return NULL;
-	    }
-	}
-	if (dirp->dd_loc >= dirp->dd_size) {
-	    dirp->dd_loc = 0;
-	    continue;
-	}
-	dp = (struct olddirect *)(dirp->dd_buf + dirp->dd_loc);
-	dirp->dd_loc += sizeof(struct olddirect);
-	if (dp->od_ino == 0) {
-	    continue;
-	}
-	dir.d_ino = dp->od_ino;
-	strncpy(dir.d_name, dp->od_name, ODIRSIZ);
-	dir.d_name[ODIRSIZ] = '\0'; /* insure null termination */
-	dir.d_namlen = strlen(dir.d_name);
-	dir.d_reclen = DIRSIZ(&dir);
-	return &dir;
-    }
-}
-
-/*
- * close a directory.
- */
-
-void
-closedir(
-    DIR *dirp)
-{
-    close(dirp->dd_fd);
-    dirp->dd_fd = -1;
-    dirp->dd_loc = 0;
-    ckfree(dirp);
-}
diff --git a/compat/stdlib.h b/compat/stdlib.h
deleted file mode 100644
index 0ad4c1d..0000000
--- a/compat/stdlib.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * stdlib.h --
- *
- *	Declares facilities exported by the "stdlib" portion of the C library.
- *	This file isn't complete in the ANSI-C sense; it only declares things
- *	that are needed by Tcl. This file is needed even on many systems with
- *	their own stdlib.h (e.g. SunOS) because not all stdlib.h files declare
- *	all the procedures needed here (such as strtod).
- *
- * Copyright (c) 1991 The Regents of the University of California.
- * Copyright (c) 1994-1998 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution of
- * this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#ifndef _STDLIB
-#define _STDLIB
-
-extern void		abort(void);
-extern double		atof(const char *string);
-extern int		atoi(const char *string);
-extern long		atol(const char *string);
-extern char *		calloc(unsigned int numElements, unsigned int size);
-extern void		exit(int status);
-extern int		free(char *blockPtr);
-extern char *		getenv(const char *name);
-extern char *		malloc(unsigned int numBytes);
-extern void		qsort(void *base, int n, int size, int (*compar)(
-			    const void *element1, const void *element2));
-extern char *		realloc(char *ptr, unsigned int numBytes);
-extern double		strtod(const char *string, char **endPtr);
-extern long		strtol(const char *string, char **endPtr, int base);
-extern unsigned long	strtoul(const char *string, char **endPtr, int base);
-
-#endif /* _STDLIB */
diff --git a/compat/string.h b/compat/string.h
deleted file mode 100644
index 42be10c..0000000
--- a/compat/string.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * string.h --
- *
- *	Declarations of ANSI C library procedures for string handling.
- *
- * Copyright (c) 1991-1993 The Regents of the University of California.
- * Copyright (c) 1994-1996 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution of
- * this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#ifndef _STRING
-#define _STRING
-
-/*
- * The following #include is needed to define size_t. (This used to include
- * sys/stdtypes.h but that doesn't exist on older versions of SunOS, e.g.
- * 4.0.2, so I'm trying sys/types.h now.... hopefully it exists everywhere)
- */
-
-#include <sys/types.h>
-
-#ifdef __APPLE__
-extern void *		memchr(const void *s, int c, size_t n);
-#else
-extern char *		memchr(const void *s, int c, size_t n);
-#endif
-extern int		memcmp(const void *s1, const void *s2, size_t n);
-extern char *		memcpy(void *t, const void *f, size_t n);
-#ifdef NO_MEMMOVE
-#define memmove(d,s,n)	(bcopy((s), (d), (n)))
-#else
-extern char *		memmove(void *t, const void *f, size_t n);
-#endif
-extern char *		memset(void *s, int c, size_t n);
-
-extern int		strcasecmp(const char *s1, const char *s2);
-extern char *		strcat(char *dst, const char *src);
-extern char *		strchr(const char *string, int c);
-extern int		strcmp(const char *s1, const char *s2);
-extern char *		strcpy(char *dst, const char *src);
-extern size_t		strcspn(const char *string, const char *chars);
-extern char *		strdup(const char *string);
-extern char *		strerror(int error);
-extern size_t		strlen(const char *string);
-extern int		strncasecmp(const char *s1, const char *s2, size_t n);
-extern char *		strncat(char *dst, const char *src, size_t numChars);
-extern int		strncmp(const char *s1, const char *s2, size_t nChars);
-extern char *		strncpy(char *dst, const char *src, size_t numChars);
-extern char *		strpbrk(const char *string, const char *chars);
-extern char *		strrchr(const char *string, int c);
-extern size_t		strspn(const char *string, const char *chars);
-extern char *		strstr(const char *string, const char *substring);
-extern char *		strtok(char *s, const char *delim);
-
-#endif /* _STRING */
diff --git a/compat/strstr.c b/compat/strstr.c
deleted file mode 100644
index 35386d0..0000000
--- a/compat/strstr.c
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * strstr.c --
- *
- *	Source code for the "strstr" library routine.
- *
- * Copyright (c) 1988-1993 The Regents of the University of California.
- * Copyright (c) 1994 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution of
- * this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#include "tcl.h"
-#ifndef NULL
-#define NULL 0
-#endif
-
-/*
- *----------------------------------------------------------------------
- *
- * strstr --
- *
- *	Locate the first instance of a substring in a string.
- *
- * Results:
- *	If string contains substring, the return value is the location of the
- *	first matching instance of substring in string. If string doesn't
- *	contain substring, the return value is 0. Matching is done on an exact
- *	character-for-character basis with no wildcards or special characters.
- *
- * Side effects:
- *	None.
- *
- *----------------------------------------------------------------------
- */
-
-char *
-strstr(
-    const char *string,		/* String to search. */
-    const char *substring)		/* Substring to try to find in string. */
-{
-    const char *a, *b;
-
-    /*
-     * First scan quickly through the two strings looking for a
-     * single-character match. When it's found, then compare the rest of the
-     * substring.
-     */
-
-    b = substring;
-    if (*b == 0) {
-	return (char *)string;
-    }
-    for ( ; *string != 0; string += 1) {
-	if (*string != *b) {
-	    continue;
-	}
-	a = string;
-	while (1) {
-	    if (*b == 0) {
-		return (char *)string;
-	    }
-	    if (*a++ != *b++) {
-		break;
-	    }
-	}
-	b = substring;
-    }
-    return NULL;
-}
diff --git a/compat/strtod.c b/compat/strtod.c
deleted file mode 100644
index b3b02d9..0000000
--- a/compat/strtod.c
+++ /dev/null
@@ -1,252 +0,0 @@
-/*
- * strtod.c --
- *
- *	Source code for the "strtod" library procedure.
- *
- * Copyright (c) 1988-1993 The Regents of the University of California.
- * Copyright (c) 1994 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#include "tclInt.h"
-#include <ctype.h>
-
-#ifndef TRUE
-#define TRUE 1
-#define FALSE 0
-#endif
-#ifndef NULL
-#define NULL 0
-#endif
-
-static int maxExponent = 511;	/* Largest possible base 10 exponent.  Any
-				 * exponent larger than this will already
-				 * produce underflow or overflow, so there's
-				 * no need to worry about additional digits.
-				 */
-static double powersOf10[] = {	/* Table giving binary powers of 10.  Entry */
-    10.,			/* is 10^2^i.  Used to convert decimal */
-    100.,			/* exponents into floating-point numbers. */
-    1.0e4,
-    1.0e8,
-    1.0e16,
-    1.0e32,
-    1.0e64,
-    1.0e128,
-    1.0e256
-};
-
-/*
- *----------------------------------------------------------------------
- *
- * strtod --
- *
- *	This procedure converts a floating-point number from an ASCII
- *	decimal representation to internal double-precision format.
- *
- * Results:
- *	The return value is the double-precision floating-point
- *	representation of the characters in string.  If endPtr isn't
- *	NULL, then *endPtr is filled in with the address of the
- *	next character after the last one that was part of the
- *	floating-point number.
- *
- * Side effects:
- *	None.
- *
- *----------------------------------------------------------------------
- */
-
-double
-strtod(
-    const char *string,		/* A decimal ASCII floating-point number,
-				 * optionally preceded by white space. Must
-				 * have form "-I.FE-X", where I is the integer
-				 * part of the mantissa, F is the fractional
-				 * part of the mantissa, and X is the
-				 * exponent. Either of the signs may be "+",
-				 * "-", or omitted. Either I or F may be
-				 * omitted, or both. The decimal point isn't
-				 * necessary unless F is present. The "E" may
-				 * actually be an "e". E and X may both be
-				 * omitted (but not just one). */
-    char **endPtr)		/* If non-NULL, store terminating character's
-				 * address here. */
-{
-    int sign, expSign = FALSE;
-    double fraction, dblExp, *d;
-    const char *p;
-    int c;
-    int exp = 0;		/* Exponent read from "EX" field. */
-    int fracExp = 0;		/* Exponent that derives from the fractional
-				 * part. Under normal circumstatnces, it is
-				 * the negative of the number of digits in F.
-				 * However, if I is very long, the last digits
-				 * of I get dropped (otherwise a long I with a
-				 * large negative exponent could cause an
-				 * unnecessary overflow on I alone). In this
-				 * case, fracExp is incremented one for each
-				 * dropped digit. */
-    int mantSize;		/* Number of digits in mantissa. */
-    int decPt;			/* Number of mantissa digits BEFORE decimal
-				 * point. */
-    const char *pExp;		/* Temporarily holds location of exponent in
-				 * string. */
-
-    /*
-     * Strip off leading blanks and check for a sign.
-     */
-
-    p = string;
-    while (isspace(UCHAR(*p))) {
-	p += 1;
-    }
-    if (*p == '-') {
-	sign = TRUE;
-	p += 1;
-    } else {
-	if (*p == '+') {
-	    p += 1;
-	}
-	sign = FALSE;
-    }
-
-    /*
-     * Count the number of digits in the mantissa (including the decimal
-     * point), and also locate the decimal point.
-     */
-
-    decPt = -1;
-    for (mantSize = 0; ; mantSize += 1)
-    {
-	c = *p;
-	if (!isdigit(c)) {
-	    if ((c != '.') || (decPt >= 0)) {
-		break;
-	    }
-	    decPt = mantSize;
-	}
-	p += 1;
-    }
-
-    /*
-     * Now suck up the digits in the mantissa. Use two integers to collect 9
-     * digits each (this is faster than using floating-point). If the mantissa
-     * has more than 18 digits, ignore the extras, since they can't affect the
-     * value anyway.
-     */
-
-    pExp  = p;
-    p -= mantSize;
-    if (decPt < 0) {
-	decPt = mantSize;
-    } else {
-	mantSize -= 1;		/* One of the digits was the point. */
-    }
-    if (mantSize > 18) {
-	fracExp = decPt - 18;
-	mantSize = 18;
-    } else {
-	fracExp = decPt - mantSize;
-    }
-    if (mantSize == 0) {
-	fraction = 0.0;
-	p = string;
-	goto done;
-    } else {
-	int frac1, frac2;
-
-	frac1 = 0;
-	for ( ; mantSize > 9; mantSize -= 1) {
-	    c = *p;
-	    p += 1;
-	    if (c == '.') {
-		c = *p;
-		p += 1;
-	    }
-	    frac1 = 10*frac1 + (c - '0');
-	}
-	frac2 = 0;
-	for (; mantSize > 0; mantSize -= 1) {
-	    c = *p;
-	    p += 1;
-	    if (c == '.') {
-		c = *p;
-		p += 1;
-	    }
-	    frac2 = 10*frac2 + (c - '0');
-	}
-	fraction = (1.0e9 * frac1) + frac2;
-    }
-
-    /*
-     * Skim off the exponent.
-     */
-
-    p = pExp;
-    if ((*p == 'E') || (*p == 'e')) {
-	p += 1;
-	if (*p == '-') {
-	    expSign = TRUE;
-	    p += 1;
-	} else {
-	    if (*p == '+') {
-		p += 1;
-	    }
-	    expSign = FALSE;
-	}
-	if (!isdigit(UCHAR(*p))) {
-	    p = pExp;
-	    goto done;
-	}
-	while (isdigit(UCHAR(*p))) {
-	    exp = exp * 10 + (*p - '0');
-	    p += 1;
-	}
-    }
-    if (expSign) {
-	exp = fracExp - exp;
-    } else {
-	exp = fracExp + exp;
-    }
-
-    /*
-     * Generate a floating-point number that represents the exponent. Do this
-     * by processing the exponent one bit at a time to combine many powers of
-     * 2 of 10. Then combine the exponent with the fraction.
-     */
-
-    if (exp < 0) {
-	expSign = TRUE;
-	exp = -exp;
-    } else {
-	expSign = FALSE;
-    }
-    if (exp > maxExponent) {
-	exp = maxExponent;
-	errno = ERANGE;
-    }
-    dblExp = 1.0;
-    for (d = powersOf10; exp != 0; exp >>= 1, d += 1) {
-	if (exp & 01) {
-	    dblExp *= *d;
-	}
-    }
-    if (expSign) {
-	fraction /= dblExp;
-    } else {
-	fraction *= dblExp;
-    }
-
-  done:
-    if (endPtr != NULL) {
-	*endPtr = (char *) p;
-    }
-
-    if (sign) {
-	return -fraction;
-    }
-    return fraction;
-}
diff --git a/compat/strtol.c b/compat/strtol.c
deleted file mode 100644
index a9866f4..0000000
--- a/compat/strtol.c
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * strtol.c --
- *
- *	Source code for the "strtol" library procedure.
- *
- * Copyright (c) 1988 The Regents of the University of California.
- * Copyright (c) 1994 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution of
- * this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#include "tclInt.h"
-
-/*
- *----------------------------------------------------------------------
- *
- * strtol --
- *
- *	Convert an ASCII string into an integer.
- *
- * Results:
- *	The return value is the integer equivalent of string. If endPtr is
- *	non-NULL, then *endPtr is filled in with the character after the last
- *	one that was part of the integer. If string doesn't contain a valid
- *	integer value, then zero is returned and *endPtr is set to string.
- *
- * Side effects:
- *	None.
- *
- *----------------------------------------------------------------------
- */
-
-long int
-strtol(
-    const char *string,		/* String of ASCII digits, possibly preceded
-				 * by white space. For bases greater than 10,
-				 * either lower- or upper-case digits may be
-				 * used. */
-    char **endPtr,		/* Where to store address of terminating
-				 * character, or NULL. */
-    int base)			/* Base for conversion. Must be less than 37.
-				 * If 0, then the base is chosen from the
-				 * leading characters of string: "0x" means
-				 * hex, "0" means octal, anything else means
-				 * decimal. */
-{
-    const char *p;
-    long result;
-
-    /*
-     * Skip any leading blanks.
-     */
-
-    p = string;
-    while (isspace(UCHAR(*p))) {
-	p += 1;
-    }
-
-    /*
-     * Check for a sign.
-     */
-
-    if (*p == '-') {
-	p += 1;
-	result = -(strtoul(p, endPtr, base));
-    } else {
-	if (*p == '+') {
-	    p += 1;
-	}
-	result = strtoul(p, endPtr, base);
-    }
-    if ((result == 0) && (endPtr != 0) && (*endPtr == p)) {
-	*endPtr = (char *) string;
-    }
-    return result;
-}
diff --git a/compat/strtoul.c b/compat/strtoul.c
deleted file mode 100644
index af63036..0000000
--- a/compat/strtoul.c
+++ /dev/null
@@ -1,214 +0,0 @@
-/*
- * strtoul.c --
- *
- *	Source code for the "strtoul" library procedure.
- *
- * Copyright (c) 1988 The Regents of the University of California.
- * Copyright (c) 1994 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution of
- * this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#include "tclInt.h"
-
-/*
- * The table below is used to convert from ASCII digits to a numerical
- * equivalent. It maps from '0' through 'z' to integers (100 for non-digit
- * characters).
- */
-
-static const char cvtIn[] = {
-    0, 1, 2, 3, 4, 5, 6, 7, 8, 9,		/* '0' - '9' */
-    100, 100, 100, 100, 100, 100, 100,		/* punctuation */
-    10, 11, 12, 13, 14, 15, 16, 17, 18, 19,	/* 'A' - 'Z' */
-    20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
-    30, 31, 32, 33, 34, 35,
-    100, 100, 100, 100, 100, 100,		/* punctuation */
-    10, 11, 12, 13, 14, 15, 16, 17, 18, 19,	/* 'a' - 'z' */
-    20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
-    30, 31, 32, 33, 34, 35};
-
-/*
- *----------------------------------------------------------------------
- *
- * strtoul --
- *
- *	Convert an ASCII string into an integer.
- *
- * Results:
- *	The return value is the integer equivalent of string. If endPtr is
- *	non-NULL, then *endPtr is filled in with the character after the last
- *	one that was part of the integer. If string doesn't contain a valid
- *	integer value, then zero is returned and *endPtr is set to string.
- *
- * Side effects:
- *	None.
- *
- *----------------------------------------------------------------------
- */
-
-unsigned long int
-strtoul(
-    const char *string,		/* String of ASCII digits, possibly preceded
-				 * by white space. For bases greater than 10,
-				 * either lower- or upper-case digits may be
-				 * used. */
-    char **endPtr,		/* Where to store address of terminating
-				 * character, or NULL. */
-    int base)			/* Base for conversion.  Must be less than 37.
-				 * If 0, then the base is chosen from the
-				 * leading characters of string: "0x" means
-				 * hex, "0" means octal, anything else means
-				 * decimal. */
-{
-    const char *p;
-    unsigned long int result = 0;
-    unsigned digit;
-    int anyDigits = 0;
-    int negative=0;
-    int overflow=0;
-
-    /*
-     * Skip any leading blanks.
-     */
-
-    p = string;
-    while (isspace(UCHAR(*p))) {
-	p += 1;
-    }
-    if (*p == '-') {
-        negative = 1;
-        p += 1;
-    } else {
-        if (*p == '+') {
-            p += 1;
-        }
-    }
-
-    /*
-     * If no base was provided, pick one from the leading characters of the
-     * string.
-     */
-
-    if (base == 0) {
-	if (*p == '0') {
-	    p += 1;
-	    if ((*p == 'x') || (*p == 'X')) {
-		p += 1;
-		base = 16;
-	    } else {
-		/*
-		 * Must set anyDigits here, otherwise "0" produces a "no
-		 * digits" error.
-		 */
-
-		anyDigits = 1;
-		base = 8;
-	    }
-	} else {
-	    base = 10;
-	}
-    } else if (base == 16) {
-	/*
-	 * Skip a leading "0x" from hex numbers.
-	 */
-
-	if ((p[0] == '0') && ((p[1] == 'x') || (p[1] == 'X'))) {
-	    p += 2;
-	}
-    }
-
-    /*
-     * Sorry this code is so messy, but speed seems important. Do different
-     * things for base 8, 10, 16, and other.
-     */
-
-    if (base == 8) {
-	unsigned long maxres = ULONG_MAX >> 3;
-
-	for ( ; ; p += 1) {
-	    digit = *p - '0';
-	    if (digit > 7) {
-		break;
-	    }
-	    if (result > maxres) { overflow = 1; }
-	    result = (result << 3);
-	    if (digit > (ULONG_MAX - result)) { overflow = 1; }
-	    result += digit;
-	    anyDigits = 1;
-	}
-    } else if (base == 10) {
-	unsigned long maxres = ULONG_MAX / 10;
-
-	for ( ; ; p += 1) {
-	    digit = *p - '0';
-	    if (digit > 9) {
-		break;
-	    }
-	    if (result > maxres) { overflow = 1; }
-	    result *= 10;
-	    if (digit > (ULONG_MAX - result)) { overflow = 1; }
-	    result += digit;
-	    anyDigits = 1;
-	}
-    } else if (base == 16) {
-	unsigned long maxres = ULONG_MAX >> 4;
-
-	for ( ; ; p += 1) {
-	    digit = *p - '0';
-	    if (digit > ('z' - '0')) {
-		break;
-	    }
-	    digit = cvtIn[digit];
-	    if (digit > 15) {
-		break;
-	    }
-	    if (result > maxres) { overflow = 1; }
-	    result = (result << 4);
-	    if (digit > (ULONG_MAX - result)) { overflow = 1; }
-	    result += digit;
-	    anyDigits = 1;
-	}
-    } else if (base >= 2 && base <= 36) {
-	unsigned long maxres = ULONG_MAX / base;
-
-	for ( ; ; p += 1) {
-	    digit = *p - '0';
-	    if (digit > ('z' - '0')) {
-		break;
-	    }
-	    digit = cvtIn[digit];
-	    if (digit >= ( (unsigned) base )) {
-		break;
-	    }
-	    if (result > maxres) { overflow = 1; }
-	    result *= base;
-	    if (digit > (ULONG_MAX - result)) { overflow = 1; }
-	    result += digit;
-	    anyDigits = 1;
-	}
-    }
-
-    /*
-     * See if there were any digits at all.
-     */
-
-    if (!anyDigits) {
-	p = string;
-    }
-
-    if (endPtr != 0) {
-	/* unsafe, but required by the strtoul prototype */
-	*endPtr = (char *) p;
-    }
-
-    if (overflow) {
-	errno = ERANGE;
-	return ULONG_MAX;
-    }
-    if (negative) {
-	return -result;
-    }
-    return result;
-}
diff --git a/compat/unistd.h b/compat/unistd.h
deleted file mode 100644
index a8f14f2..0000000
--- a/compat/unistd.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * unistd.h --
- *
- *      Macros, constants and prototypes for Posix conformance.
- *
- * Copyright 1989 Regents of the University of California Permission to use,
- * copy, modify, and distribute this software and its documentation for any
- * purpose and without fee is hereby granted, provided that the above
- * copyright notice appear in all copies. The University of California makes
- * no representations about the suitability of this software for any purpose.
- * It is provided "as is" without express or implied warranty.
- */
-
-#ifndef _UNISTD
-#define _UNISTD
-
-#include <sys/types.h>
-
-#ifndef NULL
-#define NULL    0
-#endif
-
-/*
- * Strict POSIX stuff goes here. Extensions go down below, in the ifndef
- * _POSIX_SOURCE section.
- */
-
-extern void		_exit(int status);
-extern int		access(const char *path, int mode);
-extern int		chdir(const char *path);
-extern int		chown(const char *path, uid_t owner, gid_t group);
-extern int		close(int fd);
-extern int		dup(int oldfd);
-extern int		dup2(int oldfd, int newfd);
-extern int		execl(const char *path, ...);
-extern int		execle(const char *path, ...);
-extern int		execlp(const char *file, ...);
-extern int		execv(const char *path, char **argv);
-extern int		execve(const char *path, char **argv, char **envp);
-extern int		execvpw(const char *file, char **argv);
-extern pid_t		fork(void);
-extern char *		getcwd(char *buf, size_t size);
-extern gid_t		getegid(void);
-extern uid_t		geteuid(void);
-extern gid_t		getgid(void);
-extern int		getgroups(int bufSize, int *buffer);
-extern pid_t		getpid(void);
-extern uid_t		getuid(void);
-extern int		isatty(int fd);
-extern long		lseek(int fd, long offset, int whence);
-extern int		pipe(int *fildes);
-extern int		read(int fd, char *buf, size_t size);
-extern int		setgid(gid_t group);
-extern int		setuid(uid_t user);
-extern unsigned		sleep(unsigned seconds);
-extern char *		ttyname(int fd);
-extern int		unlink(const char *path);
-extern int		write(int fd, const char *buf, size_t size);
-
-#ifndef	_POSIX_SOURCE
-extern char *		crypt(const char *, const char *);
-extern int		fchown(int fd, uid_t owner, gid_t group);
-extern int		flock(int fd, int operation);
-extern int		ftruncate(int fd, unsigned long length);
-extern int		ioctl(int fd, int request, ...);
-extern int		readlink(const char *path, char *buf, int bufsize);
-extern int		setegid(gid_t group);
-extern int		seteuidw(uid_t user);
-extern int		setreuid(int ruid, int euid);
-extern int		symlink(const char *, const char *);
-extern int		ttyslot(void);
-extern int		truncate(const char *path, unsigned long length);
-extern int		vfork(void);
-#endif /* _POSIX_SOURCE */
-
-#endif /* _UNISTD */
diff --git a/compat/waitpid.c b/compat/waitpid.c
index 6f43934..cd04d8b 100644
--- a/compat/waitpid.c
+++ b/compat/waitpid.c
@@ -100,7 +100,7 @@ waitpid(
 	} else {
 	    prevPtr->nextPtr = waitPtr->nextPtr;
 	}
-	ckfree((char *) waitPtr);
+	Tcl_Free(waitPtr);
 	return result;
     }
 
@@ -156,7 +156,11 @@ waitpid(
 		goto waitAgain;
 	    }
 	}
-	waitPtr = (WaitInfo *) ckalloc(sizeof(WaitInfo));
+	waitPtr = (WaitInfo *) Tcl_AttemptAlloc(sizeof(WaitInfo));
+	if (!waitPtr) {
+	    errno = ENOMEM;
+	    return -1;
+	}
 	waitPtr->pid = result;
 	waitPtr->status = status;
 	waitPtr->nextPtr = deadList;
diff --git a/compat/zlib/CMakeLists.txt b/compat/zlib/CMakeLists.txt
new file mode 100644
index 0000000..15ceebe
--- /dev/null
+++ b/compat/zlib/CMakeLists.txt
@@ -0,0 +1,218 @@
+cmake_minimum_required(VERSION 2.4.4...3.15.0)
+set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON)
+
+project(zlib C)
+
+set(VERSION "1.3.1")
+
+option(ZLIB_BUILD_EXAMPLES "Enable Zlib Examples" ON)
+
+set(INSTALL_BIN_DIR "${CMAKE_INSTALL_PREFIX}/bin" CACHE PATH "Installation directory for executables")
+set(INSTALL_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib" CACHE PATH "Installation directory for libraries")
+set(INSTALL_INC_DIR "${CMAKE_INSTALL_PREFIX}/include" CACHE PATH "Installation directory for headers")
+set(INSTALL_MAN_DIR "${CMAKE_INSTALL_PREFIX}/share/man" CACHE PATH "Installation directory for manual pages")
+set(INSTALL_PKGCONFIG_DIR "${CMAKE_INSTALL_PREFIX}/share/pkgconfig" CACHE PATH "Installation directory for pkgconfig (.pc) files")
+
+include(CheckTypeSize)
+include(CheckFunctionExists)
+include(CheckIncludeFile)
+include(CheckCSourceCompiles)
+enable_testing()
+
+check_include_file(sys/types.h HAVE_SYS_TYPES_H)
+check_include_file(stdint.h    HAVE_STDINT_H)
+check_include_file(stddef.h    HAVE_STDDEF_H)
+
+#
+# Check to see if we have large file support
+#
+set(CMAKE_REQUIRED_DEFINITIONS -D_LARGEFILE64_SOURCE=1)
+# We add these other definitions here because CheckTypeSize.cmake
+# in CMake 2.4.x does not automatically do so and we want
+# compatibility with CMake 2.4.x.
+if(HAVE_SYS_TYPES_H)
+    list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_SYS_TYPES_H)
+endif()
+if(HAVE_STDINT_H)
+    list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDINT_H)
+endif()
+if(HAVE_STDDEF_H)
+    list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDDEF_H)
+endif()
+check_type_size(off64_t OFF64_T)
+if(HAVE_OFF64_T)
+   add_definitions(-D_LARGEFILE64_SOURCE=1)
+endif()
+set(CMAKE_REQUIRED_DEFINITIONS) # clear variable
+
+#
+# Check for fseeko
+#
+check_function_exists(fseeko HAVE_FSEEKO)
+if(NOT HAVE_FSEEKO)
+    add_definitions(-DNO_FSEEKO)
+endif()
+
+#
+# Check for unistd.h
+#
+check_include_file(unistd.h Z_HAVE_UNISTD_H)
+
+if(MSVC)
+    set(CMAKE_DEBUG_POSTFIX "d")
+    add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
+    add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE)
+    include_directories(${CMAKE_CURRENT_SOURCE_DIR})
+endif()
+
+if(NOT CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR)
+    # If we're doing an out of source build and the user has a zconf.h
+    # in their source tree...
+    if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h)
+        message(STATUS "Renaming")
+        message(STATUS "    ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h")
+        message(STATUS "to 'zconf.h.included' because this file is included with zlib")
+        message(STATUS "but CMake generates it automatically in the build directory.")
+        file(RENAME ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.included)
+  endif()
+endif()
+
+set(ZLIB_PC ${CMAKE_CURRENT_BINARY_DIR}/zlib.pc)
+configure_file( ${CMAKE_CURRENT_SOURCE_DIR}/zlib.pc.cmakein
+		${ZLIB_PC} @ONLY)
+configure_file(	${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.cmakein
+		${CMAKE_CURRENT_BINARY_DIR}/zconf.h @ONLY)
+include_directories(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_SOURCE_DIR})
+
+
+#============================================================================
+# zlib
+#============================================================================
+
+set(ZLIB_PUBLIC_HDRS
+    ${CMAKE_CURRENT_BINARY_DIR}/zconf.h
+    zlib.h
+)
+set(ZLIB_PRIVATE_HDRS
+    crc32.h
+    deflate.h
+    gzguts.h
+    inffast.h
+    inffixed.h
+    inflate.h
+    inftrees.h
+    trees.h
+    zutil.h
+)
+set(ZLIB_SRCS
+    adler32.c
+    compress.c
+    crc32.c
+    deflate.c
+    gzclose.c
+    gzlib.c
+    gzread.c
+    gzwrite.c
+    inflate.c
+    infback.c
+    inftrees.c
+    inffast.c
+    trees.c
+    uncompr.c
+    zutil.c
+)
+
+if(NOT MINGW)
+    set(ZLIB_DLL_SRCS
+        win32/zlib1.rc # If present will override custom build rule below.
+    )
+endif()
+
+# parse the full version number from zlib.h and include in ZLIB_FULL_VERSION
+file(READ ${CMAKE_CURRENT_SOURCE_DIR}/zlib.h _zlib_h_contents)
+string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([-0-9A-Za-z.]+)\".*"
+    "\\1" ZLIB_FULL_VERSION ${_zlib_h_contents})
+
+if(MINGW)
+    # This gets us DLL resource information when compiling on MinGW.
+    if(NOT CMAKE_RC_COMPILER)
+        set(CMAKE_RC_COMPILER windres.exe)
+    endif()
+
+    add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
+                       COMMAND ${CMAKE_RC_COMPILER}
+                            -D GCC_WINDRES
+                            -I ${CMAKE_CURRENT_SOURCE_DIR}
+                            -I ${CMAKE_CURRENT_BINARY_DIR}
+                            -o ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
+                            -i ${CMAKE_CURRENT_SOURCE_DIR}/win32/zlib1.rc)
+    set(ZLIB_DLL_SRCS ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj)
+endif(MINGW)
+
+add_library(zlib SHARED ${ZLIB_SRCS} ${ZLIB_DLL_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
+target_include_directories(zlib PUBLIC ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR})
+add_library(zlibstatic STATIC ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
+target_include_directories(zlibstatic PUBLIC ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR})
+set_target_properties(zlib PROPERTIES DEFINE_SYMBOL ZLIB_DLL)
+set_target_properties(zlib PROPERTIES SOVERSION 1)
+
+if(NOT CYGWIN)
+    # This property causes shared libraries on Linux to have the full version
+    # encoded into their final filename.  We disable this on Cygwin because
+    # it causes cygz-${ZLIB_FULL_VERSION}.dll to be created when cygz.dll
+    # seems to be the default.
+    #
+    # This has no effect with MSVC, on that platform the version info for
+    # the DLL comes from the resource file win32/zlib1.rc
+    set_target_properties(zlib PROPERTIES VERSION ${ZLIB_FULL_VERSION})
+endif()
+
+if(UNIX)
+    # On unix-like platforms the library is almost always called libz
+   set_target_properties(zlib zlibstatic PROPERTIES OUTPUT_NAME z)
+   if(NOT APPLE AND NOT(CMAKE_SYSTEM_NAME STREQUAL AIX))
+     set_target_properties(zlib PROPERTIES LINK_FLAGS "-Wl,--version-script,\"${CMAKE_CURRENT_SOURCE_DIR}/zlib.map\"")
+   endif()
+elseif(BUILD_SHARED_LIBS AND WIN32)
+    # Creates zlib1.dll when building shared library version
+    set_target_properties(zlib PROPERTIES SUFFIX "1.dll")
+endif()
+
+if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL )
+    install(TARGETS zlib zlibstatic
+        RUNTIME DESTINATION "${INSTALL_BIN_DIR}"
+        ARCHIVE DESTINATION "${INSTALL_LIB_DIR}"
+        LIBRARY DESTINATION "${INSTALL_LIB_DIR}" )
+endif()
+if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL )
+    install(FILES ${ZLIB_PUBLIC_HDRS} DESTINATION "${INSTALL_INC_DIR}")
+endif()
+if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
+    install(FILES zlib.3 DESTINATION "${INSTALL_MAN_DIR}/man3")
+endif()
+if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
+    install(FILES ${ZLIB_PC} DESTINATION "${INSTALL_PKGCONFIG_DIR}")
+endif()
+
+#============================================================================
+# Example binaries
+#============================================================================
+if(ZLIB_BUILD_EXAMPLES)
+    add_executable(example test/example.c)
+    target_link_libraries(example zlib)
+    add_test(example example)
+
+    add_executable(minigzip test/minigzip.c)
+    target_link_libraries(minigzip zlib)
+
+    if(HAVE_OFF64_T)
+        add_executable(example64 test/example.c)
+        target_link_libraries(example64 zlib)
+        set_target_properties(example64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
+        add_test(example64 example64)
+
+        add_executable(minigzip64 test/minigzip.c)
+        target_link_libraries(minigzip64 zlib)
+        set_target_properties(minigzip64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
+    endif()
+endif()
diff --git a/compat/zlib/ChangeLog b/compat/zlib/ChangeLog
new file mode 100644
index 0000000..b801a10
--- /dev/null
+++ b/compat/zlib/ChangeLog
@@ -0,0 +1,1618 @@
+
+                ChangeLog file for zlib
+
+Changes in 1.3.1 (22 Jan 2024)
+- Reject overflows of zip header fields in minizip
+- Fix bug in inflateSync() for data held in bit buffer
+- Add LIT_MEM define to use more memory for a small deflate speedup
+- Fix decision on the emission of Zip64 end records in minizip
+- Add bounds checking to ERR_MSG() macro, used by zError()
+- Neutralize zip file traversal attacks in miniunz
+- Fix a bug in ZLIB_DEBUG compiles in check_match()
+- Various portability and appearance improvements
+
+Changes in 1.3 (18 Aug 2023)
+- Remove K&R function definitions and zlib2ansi
+- Fix bug in deflateBound() for level 0 and memLevel 9
+- Fix bug when gzungetc() is used immediately after gzopen()
+- Fix bug when using gzflush() with a very small buffer
+- Fix crash when gzsetparams() attempted for transparent write
+- Fix test/example.c to work with FORCE_STORED
+- Rewrite of zran in examples (see zran.c version history)
+- Fix minizip to allow it to open an empty zip file
+- Fix reading disk number start on zip64 files in minizip
+- Fix logic error in minizip argument processing
+- Add minizip testing to Makefile
+- Read multiple bytes instead of byte-by-byte in minizip unzip.c
+- Add memory sanitizer to configure (--memory)
+- Various portability improvements
+- Various documentation improvements
+- Various spelling and typo corrections
+
+Changes in 1.2.13 (13 Oct 2022)
+- Fix configure issue that discarded provided CC definition
+- Correct incorrect inputs provided to the CRC functions
+- Repair prototypes and exporting of new CRC functions
+- Fix inflateBack to detect invalid input with distances too far
+- Have infback() deliver all of the available output up to any error
+- Fix a bug when getting a gzip header extra field with inflate()
+- Fix bug in block type selection when Z_FIXED used
+- Tighten deflateBound bounds
+- Remove deleted assembler code references
+- Various portability and appearance improvements
+
+Changes in 1.2.12 (27 Mar 2022)
+- Cygwin does not have _wopen(), so do not create gzopen_w() there
+- Permit a deflateParams() parameter change as soon as possible
+- Limit hash table inserts after switch from stored deflate
+- Fix bug when window full in deflate_stored()
+- Fix CLEAR_HASH macro to be usable as a single statement
+- Avoid a conversion error in gzseek when off_t type too small
+- Have Makefile return non-zero error code on test failure
+- Avoid some conversion warnings in gzread.c and gzwrite.c
+- Update use of errno for newer Windows CE versions
+- Small speedup to inflate [psumbera]
+- Return an error if the gzputs string length can't fit in an int
+- Add address checking in clang to -w option of configure
+- Don't compute check value for raw inflate if asked to validate
+- Handle case where inflateSync used when header never processed
+- Avoid the use of ptrdiff_t
+- Avoid an undefined behavior of memcpy() in gzappend()
+- Avoid undefined behaviors of memcpy() in gz*printf()
+- Avoid an undefined behavior of memcpy() in _tr_stored_block()
+- Make the names in functions declarations identical to definitions
+- Remove old assembler code in which bugs have manifested
+- Fix deflateEnd() to not report an error at start of raw deflate
+- Add legal disclaimer to README
+- Emphasize the need to continue decompressing gzip members
+- Correct the initialization requirements for deflateInit2()
+- Fix a bug that can crash deflate on some input when using Z_FIXED
+- Assure that the number of bits for deflatePrime() is valid
+- Use a structure to make globals in enough.c evident
+- Use a macro for the printf format of big_t in enough.c
+- Clean up code style in enough.c, update version
+- Use inline function instead of macro for index in enough.c
+- Clarify that prefix codes are counted in enough.c
+- Show all the codes for the maximum tables size in enough.c
+- Add gznorm.c example, which normalizes gzip files
+- Fix the zran.c example to work on a multiple-member gzip file
+- Add tables for crc32_combine(), to speed it up by a factor of 200
+- Add crc32_combine_gen() and crc32_combine_op() for fast combines
+- Speed up software CRC-32 computation by a factor of 1.5 to 3
+- Use atomic test and set, if available, for dynamic CRC tables
+- Don't bother computing check value after successful inflateSync()
+- Correct comment in crc32.c
+- Add use of the ARMv8 crc32 instructions when requested
+- Use ARM crc32 instructions if the ARM architecture has them
+- Explicitly note that the 32-bit check values are 32 bits
+- Avoid adding empty gzip member after gzflush with Z_FINISH
+- Fix memory leak on error in gzlog.c
+- Fix error in comment on the polynomial representation of a byte
+- Clarify gz* function interfaces, referring to parameter names
+- Change macro name in inflate.c to avoid collision in VxWorks
+- Correct typo in blast.c
+- Improve portability of contrib/minizip
+- Fix indentation in minizip's zip.c
+- Replace black/white with allow/block. (theresa-m)
+- minizip warning fix if MAXU32 already defined. (gvollant)
+- Fix unztell64() in minizip to work past 4GB. (Daniël Hörchner)
+- Clean up minizip to reduce warnings for testing
+- Add fallthrough comments for gcc
+- Eliminate use of ULL constants
+- Separate out address sanitizing from warnings in configure
+- Remove destructive aspects of make distclean
+- Check for cc masquerading as gcc or clang in configure
+- Fix crc32.c to compile local functions only if used
+
+Changes in 1.2.11 (15 Jan 2017)
+- Fix deflate stored bug when pulling last block from window
+- Permit immediate deflateParams changes before any deflate input
+
+Changes in 1.2.10 (2 Jan 2017)
+- Avoid warnings on snprintf() return value
+- Fix bug in deflate_stored() for zero-length input
+- Fix bug in gzwrite.c that produced corrupt gzip files
+- Remove files to be installed before copying them in Makefile.in
+- Add warnings when compiling with assembler code
+
+Changes in 1.2.9 (31 Dec 2016)
+- Fix contrib/minizip to permit unzipping with desktop API [Zouzou]
+- Improve contrib/blast to return unused bytes
+- Assure that gzoffset() is correct when appending
+- Improve compress() and uncompress() to support large lengths
+- Fix bug in test/example.c where error code not saved
+- Remedy Coverity warning [Randers-Pehrson]
+- Improve speed of gzprintf() in transparent mode
+- Fix inflateInit2() bug when windowBits is 16 or 32
+- Change DEBUG macro to ZLIB_DEBUG
+- Avoid uninitialized access by gzclose_w()
+- Allow building zlib outside of the source directory
+- Fix bug that accepted invalid zlib header when windowBits is zero
+- Fix gzseek() problem on MinGW due to buggy _lseeki64 there
+- Loop on write() calls in gzwrite.c in case of non-blocking I/O
+- Add --warn (-w) option to ./configure for more compiler warnings
+- Reject a window size of 256 bytes if not using the zlib wrapper
+- Fix bug when level 0 used with Z_HUFFMAN or Z_RLE
+- Add --debug (-d) option to ./configure to define ZLIB_DEBUG
+- Fix bugs in creating a very large gzip header
+- Add uncompress2() function, which returns the input size used
+- Assure that deflateParams() will not switch functions mid-block
+- Dramatically speed up deflation for level 0 (storing)
+- Add gzfread(), duplicating the interface of fread()
+- Add gzfwrite(), duplicating the interface of fwrite()
+- Add deflateGetDictionary() function
+- Use snprintf() for later versions of Microsoft C
+- Fix *Init macros to use z_ prefix when requested
+- Replace as400 with os400 for OS/400 support [Monnerat]
+- Add crc32_z() and adler32_z() functions with size_t lengths
+- Update Visual Studio project files [AraHaan]
+
+Changes in 1.2.8 (28 Apr 2013)
+- Update contrib/minizip/iowin32.c for Windows RT [Vollant]
+- Do not force Z_CONST for C++
+- Clean up contrib/vstudio [Roß]
+- Correct spelling error in zlib.h
+- Fix mixed line endings in contrib/vstudio
+
+Changes in 1.2.7.3 (13 Apr 2013)
+- Fix version numbers and DLL names in contrib/vstudio/*/zlib.rc
+
+Changes in 1.2.7.2 (13 Apr 2013)
+- Change check for a four-byte type back to hexadecimal
+- Fix typo in win32/Makefile.msc
+- Add casts in gzwrite.c for pointer differences
+
+Changes in 1.2.7.1 (24 Mar 2013)
+- Replace use of unsafe string functions with snprintf if available
+- Avoid including stddef.h on Windows for Z_SOLO compile [Niessink]
+- Fix gzgetc undefine when Z_PREFIX set [Turk]
+- Eliminate use of mktemp in Makefile (not always available)
+- Fix bug in 'F' mode for gzopen()
+- Add inflateGetDictionary() function
+- Correct comment in deflate.h
+- Use _snprintf for snprintf in Microsoft C
+- On Darwin, only use /usr/bin/libtool if libtool is not Apple
+- Delete "--version" file if created by "ar --version" [Richard G.]
+- Fix configure check for veracity of compiler error return codes
+- Fix CMake compilation of static lib for MSVC2010 x64
+- Remove unused variable in infback9.c
+- Fix argument checks in gzlog_compress() and gzlog_write()
+- Clean up the usage of z_const and respect const usage within zlib
+- Clean up examples/gzlog.[ch] comparisons of different types
+- Avoid shift equal to bits in type (caused endless loop)
+- Fix uninitialized value bug in gzputc() introduced by const patches
+- Fix memory allocation error in examples/zran.c [Nor]
+- Fix bug where gzopen(), gzclose() would write an empty file
+- Fix bug in gzclose() when gzwrite() runs out of memory
+- Check for input buffer malloc failure in examples/gzappend.c
+- Add note to contrib/blast to use binary mode in stdio
+- Fix comparisons of differently signed integers in contrib/blast
+- Check for invalid code length codes in contrib/puff
+- Fix serious but very rare decompression bug in inftrees.c
+- Update inflateBack() comments, since inflate() can be faster
+- Use underscored I/O function names for WINAPI_FAMILY
+- Add _tr_flush_bits to the external symbols prefixed by --zprefix
+- Add contrib/vstudio/vc10 pre-build step for static only
+- Quote --version-script argument in CMakeLists.txt
+- Don't specify --version-script on Apple platforms in CMakeLists.txt
+- Fix casting error in contrib/testzlib/testzlib.c
+- Fix types in contrib/minizip to match result of get_crc_table()
+- Simplify contrib/vstudio/vc10 with 'd' suffix
+- Add TOP support to win32/Makefile.msc
+- Support i686 and amd64 assembler builds in CMakeLists.txt
+- Fix typos in the use of _LARGEFILE64_SOURCE in zconf.h
+- Add vc11 and vc12 build files to contrib/vstudio
+- Add gzvprintf() as an undocumented function in zlib
+- Fix configure for Sun shell
+- Remove runtime check in configure for four-byte integer type
+- Add casts and consts to ease user conversion to C++
+- Add man pages for minizip and miniunzip
+- In Makefile uninstall, don't rm if preceding cd fails
+- Do not return Z_BUF_ERROR if deflateParam() has nothing to write
+
+Changes in 1.2.7 (2 May 2012)
+- Replace use of memmove() with a simple copy for portability
+- Test for existence of strerror
+- Restore gzgetc_ for backward compatibility with 1.2.6
+- Fix build with non-GNU make on Solaris
+- Require gcc 4.0 or later on Mac OS X to use the hidden attribute
+- Include unistd.h for Watcom C
+- Use __WATCOMC__ instead of __WATCOM__
+- Do not use the visibility attribute if NO_VIZ defined
+- Improve the detection of no hidden visibility attribute
+- Avoid using __int64 for gcc or solo compilation
+- Cast to char * in gzprintf to avoid warnings [Zinser]
+- Fix make_vms.com for VAX [Zinser]
+- Don't use library or built-in byte swaps
+- Simplify test and use of gcc hidden attribute
+- Fix bug in gzclose_w() when gzwrite() fails to allocate memory
+- Add "x" (O_EXCL) and "e" (O_CLOEXEC) modes support to gzopen()
+- Fix bug in test/minigzip.c for configure --solo
+- Fix contrib/vstudio project link errors [Mohanathas]
+- Add ability to choose the builder in make_vms.com [Schweda]
+- Add DESTDIR support to mingw32 win32/Makefile.gcc
+- Fix comments in win32/Makefile.gcc for proper usage
+- Allow overriding the default install locations for cmake
+- Generate and install the pkg-config file with cmake
+- Build both a static and a shared version of zlib with cmake
+- Include version symbols for cmake builds
+- If using cmake with MSVC, add the source directory to the includes
+- Remove unneeded EXTRA_CFLAGS from win32/Makefile.gcc [Truta]
+- Move obsolete emx makefile to old [Truta]
+- Allow the use of -Wundef when compiling or using zlib
+- Avoid the use of the -u option with mktemp
+- Improve inflate() documentation on the use of Z_FINISH
+- Recognize clang as gcc
+- Add gzopen_w() in Windows for wide character path names
+- Rename zconf.h in CMakeLists.txt to move it out of the way
+- Add source directory in CMakeLists.txt for building examples
+- Look in build directory for zlib.pc in CMakeLists.txt
+- Remove gzflags from zlibvc.def in vc9 and vc10
+- Fix contrib/minizip compilation in the MinGW environment
+- Update ./configure for Solaris, support --64 [Mooney]
+- Remove -R. from Solaris shared build (possible security issue)
+- Avoid race condition for parallel make (-j) running example
+- Fix type mismatch between get_crc_table() and crc_table
+- Fix parsing of version with "-" in CMakeLists.txt [Snider, Ziegler]
+- Fix the path to zlib.map in CMakeLists.txt
+- Force the native libtool in Mac OS X to avoid GNU libtool [Beebe]
+- Add instructions to win32/Makefile.gcc for shared install [Torri]
+
+Changes in 1.2.6.1 (12 Feb 2012)
+- Avoid the use of the Objective-C reserved name "id"
+- Include io.h in gzguts.h for Microsoft compilers
+- Fix problem with ./configure --prefix and gzgetc macro
+- Include gz_header definition when compiling zlib solo
+- Put gzflags() functionality back in zutil.c
+- Avoid library header include in crc32.c for Z_SOLO
+- Use name in GCC_CLASSIC as C compiler for coverage testing, if set
+- Minor cleanup in contrib/minizip/zip.c [Vollant]
+- Update make_vms.com [Zinser]
+- Remove unnecessary gzgetc_ function
+- Use optimized byte swap operations for Microsoft and GNU [Snyder]
+- Fix minor typo in zlib.h comments [Rzesniowiecki]
+
+Changes in 1.2.6 (29 Jan 2012)
+- Update the Pascal interface in contrib/pascal
+- Fix function numbers for gzgetc_ in zlibvc.def files
+- Fix configure.ac for contrib/minizip [Schiffer]
+- Fix large-entry detection in minizip on 64-bit systems [Schiffer]
+- Have ./configure use the compiler return code for error indication
+- Fix CMakeLists.txt for cross compilation [McClure]
+- Fix contrib/minizip/zip.c for 64-bit architectures [Dalsnes]
+- Fix compilation of contrib/minizip on FreeBSD [Marquez]
+- Correct suggested usages in win32/Makefile.msc [Shachar, Horvath]
+- Include io.h for Turbo C / Borland C on all platforms [Truta]
+- Make version explicit in contrib/minizip/configure.ac [Bosmans]
+- Avoid warning for no encryption in contrib/minizip/zip.c [Vollant]
+- Minor cleanup up contrib/minizip/unzip.c [Vollant]
+- Fix bug when compiling minizip with C++ [Vollant]
+- Protect for long name and extra fields in contrib/minizip [Vollant]
+- Avoid some warnings in contrib/minizip [Vollant]
+- Add -I../.. -L../.. to CFLAGS for minizip and miniunzip
+- Add missing libs to minizip linker command
+- Add support for VPATH builds in contrib/minizip
+- Add an --enable-demos option to contrib/minizip/configure
+- Add the generation of configure.log by ./configure
+- Exit when required parameters not provided to win32/Makefile.gcc
+- Have gzputc return the character written instead of the argument
+- Use the -m option on ldconfig for BSD systems [Tobias]
+- Correct in zlib.map when deflateResetKeep was added
+
+Changes in 1.2.5.3 (15 Jan 2012)
+- Restore gzgetc function for binary compatibility
+- Do not use _lseeki64 under Borland C++ [Truta]
+- Update win32/Makefile.msc to build test/*.c [Truta]
+- Remove old/visualc6 given CMakefile and other alternatives
+- Update AS400 build files and documentation [Monnerat]
+- Update win32/Makefile.gcc to build test/*.c [Truta]
+- Permit stronger flushes after Z_BLOCK flushes
+- Avoid extraneous empty blocks when doing empty flushes
+- Permit Z_NULL arguments to deflatePending
+- Allow deflatePrime() to insert bits in the middle of a stream
+- Remove second empty static block for Z_PARTIAL_FLUSH
+- Write out all of the available bits when using Z_BLOCK
+- Insert the first two strings in the hash table after a flush
+
+Changes in 1.2.5.2 (17 Dec 2011)
+- fix ld error: unable to find version dependency 'ZLIB_1.2.5'
+- use relative symlinks for shared libs
+- Avoid searching past window for Z_RLE strategy
+- Assure that high-water mark initialization is always applied in deflate
+- Add assertions to fill_window() in deflate.c to match comments
+- Update python link in README
+- Correct spelling error in gzread.c
+- Fix bug in gzgets() for a concatenated empty gzip stream
+- Correct error in comment for gz_make()
+- Change gzread() and related to ignore junk after gzip streams
+- Allow gzread() and related to continue after gzclearerr()
+- Allow gzrewind() and gzseek() after a premature end-of-file
+- Simplify gzseek() now that raw after gzip is ignored
+- Change gzgetc() to a macro for speed (~40% speedup in testing)
+- Fix gzclose() to return the actual error last encountered
+- Always add large file support for windows
+- Include zconf.h for windows large file support
+- Include zconf.h.cmakein for windows large file support
+- Update zconf.h.cmakein on make distclean
+- Merge vestigial vsnprintf determination from zutil.h to gzguts.h
+- Clarify how gzopen() appends in zlib.h comments
+- Correct documentation of gzdirect() since junk at end now ignored
+- Add a transparent write mode to gzopen() when 'T' is in the mode
+- Update python link in zlib man page
+- Get inffixed.h and MAKEFIXED result to match
+- Add a ./config --solo option to make zlib subset with no library use
+- Add undocumented inflateResetKeep() function for CAB file decoding
+- Add --cover option to ./configure for gcc coverage testing
+- Add #define ZLIB_CONST option to use const in the z_stream interface
+- Add comment to gzdopen() in zlib.h to use dup() when using fileno()
+- Note behavior of uncompress() to provide as much data as it can
+- Add files in contrib/minizip to aid in building libminizip
+- Split off AR options in Makefile.in and configure
+- Change ON macro to Z_ARG to avoid application conflicts
+- Facilitate compilation with Borland C++ for pragmas and vsnprintf
+- Include io.h for Turbo C / Borland C++
+- Move example.c and minigzip.c to test/
+- Simplify incomplete code table filling in inflate_table()
+- Remove code from inflate.c and infback.c that is impossible to execute
+- Test the inflate code with full coverage
+- Allow deflateSetDictionary, inflateSetDictionary at any time (in raw)
+- Add deflateResetKeep and fix inflateResetKeep to retain dictionary
+- Fix gzwrite.c to accommodate reduced memory zlib compilation
+- Have inflate() with Z_FINISH avoid the allocation of a window
+- Do not set strm->adler when doing raw inflate
+- Fix gzeof() to behave just like feof() when read is not past end of file
+- Fix bug in gzread.c when end-of-file is reached
+- Avoid use of Z_BUF_ERROR in gz* functions except for premature EOF
+- Document gzread() capability to read concurrently written files
+- Remove hard-coding of resource compiler in CMakeLists.txt [Blammo]
+
+Changes in 1.2.5.1 (10 Sep 2011)
+- Update FAQ entry on shared builds (#13)
+- Avoid symbolic argument to chmod in Makefile.in
+- Fix bug and add consts in contrib/puff [Oberhumer]
+- Update contrib/puff/zeros.raw test file to have all block types
+- Add full coverage test for puff in contrib/puff/Makefile
+- Fix static-only-build install in Makefile.in
+- Fix bug in unzGetCurrentFileInfo() in contrib/minizip [Kuno]
+- Add libz.a dependency to shared in Makefile.in for parallel builds
+- Spell out "number" (instead of "nb") in zlib.h for total_in, total_out
+- Replace $(...) with `...` in configure for non-bash sh [Bowler]
+- Add darwin* to Darwin* and solaris* to SunOS\ 5* in configure [Groffen]
+- Add solaris* to Linux* in configure to allow gcc use [Groffen]
+- Add *bsd* to Linux* case in configure [Bar-Lev]
+- Add inffast.obj to dependencies in win32/Makefile.msc
+- Correct spelling error in deflate.h [Kohler]
+- Change libzdll.a again to libz.dll.a (!) in win32/Makefile.gcc
+- Add test to configure for GNU C looking for gcc in output of $cc -v
+- Add zlib.pc generation to win32/Makefile.gcc [Weigelt]
+- Fix bug in zlib.h for _FILE_OFFSET_BITS set and _LARGEFILE64_SOURCE not
+- Add comment in zlib.h that adler32_combine with len2 < 0 makes no sense
+- Make NO_DIVIDE option in adler32.c much faster (thanks to John Reiser)
+- Make stronger test in zconf.h to include unistd.h for LFS
+- Apply Darwin patches for 64-bit file offsets to contrib/minizip [Slack]
+- Fix zlib.h LFS support when Z_PREFIX used
+- Add updated as400 support (removed from old) [Monnerat]
+- Avoid deflate sensitivity to volatile input data
+- Avoid division in adler32_combine for NO_DIVIDE
+- Clarify the use of Z_FINISH with deflateBound() amount of space
+- Set binary for output file in puff.c
+- Use u4 type for crc_table to avoid conversion warnings
+- Apply casts in zlib.h to avoid conversion warnings
+- Add OF to prototypes for adler32_combine_ and crc32_combine_ [Miller]
+- Improve inflateSync() documentation to note indeterminacy
+- Add deflatePending() function to return the amount of pending output
+- Correct the spelling of "specification" in FAQ [Randers-Pehrson]
+- Add a check in configure for stdarg.h, use for gzprintf()
+- Check that pointers fit in ints when gzprint() compiled old style
+- Add dummy name before $(SHAREDLIBV) in Makefile [Bar-Lev, Bowler]
+- Delete line in configure that adds -L. libz.a to LDFLAGS [Weigelt]
+- Add debug records in assembler code [Londer]
+- Update RFC references to use http://tools.ietf.org/html/... [Li]
+- Add --archs option, use of libtool to configure for Mac OS X [Borstel]
+
+Changes in 1.2.5 (19 Apr 2010)
+- Disable visibility attribute in win32/Makefile.gcc [Bar-Lev]
+- Default to libdir as sharedlibdir in configure [Nieder]
+- Update copyright dates on modified source files
+- Update trees.c to be able to generate modified trees.h
+- Exit configure for MinGW, suggesting win32/Makefile.gcc
+- Check for NULL path in gz_open [Homurlu]
+
+Changes in 1.2.4.5 (18 Apr 2010)
+- Set sharedlibdir in configure [Torok]
+- Set LDFLAGS in Makefile.in [Bar-Lev]
+- Avoid mkdir objs race condition in Makefile.in [Bowler]
+- Add ZLIB_INTERNAL in front of internal inter-module functions and arrays
+- Define ZLIB_INTERNAL to hide internal functions and arrays for GNU C
+- Don't use hidden attribute when it is a warning generator (e.g. Solaris)
+
+Changes in 1.2.4.4 (18 Apr 2010)
+- Fix CROSS_PREFIX executable testing, CHOST extract, mingw* [Torok]
+- Undefine _LARGEFILE64_SOURCE in zconf.h if it is zero, but not if empty
+- Try to use bash or ksh regardless of functionality of /bin/sh
+- Fix configure incompatibility with NetBSD sh
+- Remove attempt to run under bash or ksh since have better NetBSD fix
+- Fix win32/Makefile.gcc for MinGW [Bar-Lev]
+- Add diagnostic messages when using CROSS_PREFIX in configure
+- Added --sharedlibdir option to configure [Weigelt]
+- Use hidden visibility attribute when available [Frysinger]
+
+Changes in 1.2.4.3 (10 Apr 2010)
+- Only use CROSS_PREFIX in configure for ar and ranlib if they exist
+- Use CROSS_PREFIX for nm [Bar-Lev]
+- Assume _LARGEFILE64_SOURCE defined is equivalent to true
+- Avoid use of undefined symbols in #if with && and ||
+- Make *64 prototypes in gzguts.h consistent with functions
+- Add -shared load option for MinGW in configure [Bowler]
+- Move z_off64_t to public interface, use instead of off64_t
+- Remove ! from shell test in configure (not portable to Solaris)
+- Change +0 macro tests to -0 for possibly increased portability
+
+Changes in 1.2.4.2 (9 Apr 2010)
+- Add consistent carriage returns to readme.txt's in masmx86 and masmx64
+- Really provide prototypes for *64 functions when building without LFS
+- Only define unlink() in minigzip.c if unistd.h not included
+- Update README to point to contrib/vstudio project files
+- Move projects/vc6 to old/ and remove projects/
+- Include stdlib.h in minigzip.c for setmode() definition under WinCE
+- Clean up assembler builds in win32/Makefile.msc [Rowe]
+- Include sys/types.h for Microsoft for off_t definition
+- Fix memory leak on error in gz_open()
+- Symbolize nm as $NM in configure [Weigelt]
+- Use TEST_LDSHARED instead of LDSHARED to link test programs [Weigelt]
+- Add +0 to _FILE_OFFSET_BITS and _LFS64_LARGEFILE in case not defined
+- Fix bug in gzeof() to take into account unused input data
+- Avoid initialization of structures with variables in puff.c
+- Updated win32/README-WIN32.txt [Rowe]
+
+Changes in 1.2.4.1 (28 Mar 2010)
+- Remove the use of [a-z] constructs for sed in configure [gentoo 310225]
+- Remove $(SHAREDLIB) from LIBS in Makefile.in [Creech]
+- Restore "for debugging" comment on sprintf() in gzlib.c
+- Remove fdopen for MVS from gzguts.h
+- Put new README-WIN32.txt in win32 [Rowe]
+- Add check for shell to configure and invoke another shell if needed
+- Fix big fat stinking bug in gzseek() on uncompressed files
+- Remove vestigial F_OPEN64 define in zutil.h
+- Set and check the value of _LARGEFILE_SOURCE and _LARGEFILE64_SOURCE
+- Avoid errors on non-LFS systems when applications define LFS macros
+- Set EXE to ".exe" in configure for MINGW [Kahle]
+- Match crc32() in crc32.c exactly to the prototype in zlib.h [Sherrill]
+- Add prefix for cross-compilation in win32/makefile.gcc [Bar-Lev]
+- Add DLL install in win32/makefile.gcc [Bar-Lev]
+- Allow Linux* or linux* from uname in configure [Bar-Lev]
+- Allow ldconfig to be redefined in configure and Makefile.in [Bar-Lev]
+- Add cross-compilation prefixes to configure [Bar-Lev]
+- Match type exactly in gz_load() invocation in gzread.c
+- Match type exactly of zcalloc() in zutil.c to zlib.h alloc_func
+- Provide prototypes for *64 functions when building zlib without LFS
+- Don't use -lc when linking shared library on MinGW
+- Remove errno.h check in configure and vestigial errno code in zutil.h
+
+Changes in 1.2.4 (14 Mar 2010)
+- Fix VER3 extraction in configure for no fourth subversion
+- Update zlib.3, add docs to Makefile.in to make .pdf out of it
+- Add zlib.3.pdf to distribution
+- Don't set error code in gzerror() if passed pointer is NULL
+- Apply destination directory fixes to CMakeLists.txt [Lowman]
+- Move #cmakedefine's to a new zconf.in.cmakein
+- Restore zconf.h for builds that don't use configure or cmake
+- Add distclean to dummy Makefile for convenience
+- Update and improve INDEX, README, and FAQ
+- Update CMakeLists.txt for the return of zconf.h [Lowman]
+- Update contrib/vstudio/vc9 and vc10 [Vollant]
+- Change libz.dll.a back to libzdll.a in win32/Makefile.gcc
+- Apply license and readme changes to contrib/asm686 [Raiter]
+- Check file name lengths and add -c option in minigzip.c [Li]
+- Update contrib/amd64 and contrib/masmx86/ [Vollant]
+- Avoid use of "eof" parameter in trees.c to not shadow library variable
+- Update make_vms.com for removal of zlibdefs.h [Zinser]
+- Update assembler code and vstudio projects in contrib [Vollant]
+- Remove outdated assembler code contrib/masm686 and contrib/asm586
+- Remove old vc7 and vc8 from contrib/vstudio
+- Update win32/Makefile.msc, add ZLIB_VER_SUBREVISION [Rowe]
+- Fix memory leaks in gzclose_r() and gzclose_w(), file leak in gz_open()
+- Add contrib/gcc_gvmat64 for longest_match and inflate_fast [Vollant]
+- Remove *64 functions from win32/zlib.def (they're not 64-bit yet)
+- Fix bug in void-returning vsprintf() case in gzwrite.c
+- Fix name change from inflate.h in contrib/inflate86/inffas86.c
+- Check if temporary file exists before removing in make_vms.com [Zinser]
+- Fix make install and uninstall for --static option
+- Fix usage of _MSC_VER in gzguts.h and zutil.h [Truta]
+- Update readme.txt in contrib/masmx64 and masmx86 to assemble
+
+Changes in 1.2.3.9 (21 Feb 2010)
+- Expunge gzio.c
+- Move as400 build information to old
+- Fix updates in contrib/minizip and contrib/vstudio
+- Add const to vsnprintf test in configure to avoid warnings [Weigelt]
+- Delete zconf.h (made by configure) [Weigelt]
+- Change zconf.in.h to zconf.h.in per convention [Weigelt]
+- Check for NULL buf in gzgets()
+- Return empty string for gzgets() with len == 1 (like fgets())
+- Fix description of gzgets() in zlib.h for end-of-file, NULL return
+- Update minizip to 1.1 [Vollant]
+- Avoid MSVC loss of data warnings in gzread.c, gzwrite.c
+- Note in zlib.h that gzerror() should be used to distinguish from EOF
+- Remove use of snprintf() from gzlib.c
+- Fix bug in gzseek()
+- Update contrib/vstudio, adding vc9 and vc10 [Kuno, Vollant]
+- Fix zconf.h generation in CMakeLists.txt [Lowman]
+- Improve comments in zconf.h where modified by configure
+
+Changes in 1.2.3.8 (13 Feb 2010)
+- Clean up text files (tabs, trailing whitespace, etc.) [Oberhumer]
+- Use z_off64_t in gz_zero() and gz_skip() to match state->skip
+- Avoid comparison problem when sizeof(int) == sizeof(z_off64_t)
+- Revert to Makefile.in from 1.2.3.6 (live with the clutter)
+- Fix missing error return in gzflush(), add zlib.h note
+- Add *64 functions to zlib.map [Levin]
+- Fix signed/unsigned comparison in gz_comp()
+- Use SFLAGS when testing shared linking in configure
+- Add --64 option to ./configure to use -m64 with gcc
+- Fix ./configure --help to correctly name options
+- Have make fail if a test fails [Levin]
+- Avoid buffer overrun in contrib/masmx64/gvmat64.asm [Simpson]
+- Remove assembler object files from contrib
+
+Changes in 1.2.3.7 (24 Jan 2010)
+- Always gzopen() with O_LARGEFILE if available
+- Fix gzdirect() to work immediately after gzopen() or gzdopen()
+- Make gzdirect() more precise when the state changes while reading
+- Improve zlib.h documentation in many places
+- Catch memory allocation failure in gz_open()
+- Complete close operation if seek forward in gzclose_w() fails
+- Return Z_ERRNO from gzclose_r() if close() fails
+- Return Z_STREAM_ERROR instead of EOF for gzclose() being passed NULL
+- Return zero for gzwrite() errors to match zlib.h description
+- Return -1 on gzputs() error to match zlib.h description
+- Add zconf.in.h to allow recovery from configure modification [Weigelt]
+- Fix static library permissions in Makefile.in [Weigelt]
+- Avoid warnings in configure tests that hide functionality [Weigelt]
+- Add *BSD and DragonFly to Linux case in configure [gentoo 123571]
+- Change libzdll.a to libz.dll.a in win32/Makefile.gcc [gentoo 288212]
+- Avoid access of uninitialized data for first inflateReset2 call [Gomes]
+- Keep object files in subdirectories to reduce the clutter somewhat
+- Remove default Makefile and zlibdefs.h, add dummy Makefile
+- Add new external functions to Z_PREFIX, remove duplicates, z_z_ -> z_
+- Remove zlibdefs.h completely -- modify zconf.h instead
+
+Changes in 1.2.3.6 (17 Jan 2010)
+- Avoid void * arithmetic in gzread.c and gzwrite.c
+- Make compilers happier with const char * for gz_error message
+- Avoid unused parameter warning in inflate.c
+- Avoid signed-unsigned comparison warning in inflate.c
+- Indent #pragma's for traditional C
+- Fix usage of strwinerror() in glib.c, change to gz_strwinerror()
+- Correct email address in configure for system options
+- Update make_vms.com and add make_vms.com to contrib/minizip [Zinser]
+- Update zlib.map [Brown]
+- Fix Makefile.in for Solaris 10 make of example64 and minizip64 [Torok]
+- Apply various fixes to CMakeLists.txt [Lowman]
+- Add checks on len in gzread() and gzwrite()
+- Add error message for no more room for gzungetc()
+- Remove zlib version check in gzwrite()
+- Defer compression of gzprintf() result until need to
+- Use snprintf() in gzdopen() if available
+- Remove USE_MMAP configuration determination (only used by minigzip)
+- Remove examples/pigz.c (available separately)
+- Update examples/gun.c to 1.6
+
+Changes in 1.2.3.5 (8 Jan 2010)
+- Add space after #if in zutil.h for some compilers
+- Fix relatively harmless bug in deflate_fast() [Exarevsky]
+- Fix same problem in deflate_slow()
+- Add $(SHAREDLIBV) to LIBS in Makefile.in [Brown]
+- Add deflate_rle() for faster Z_RLE strategy run-length encoding
+- Add deflate_huff() for faster Z_HUFFMAN_ONLY encoding
+- Change name of "write" variable in inffast.c to avoid library collisions
+- Fix premature EOF from gzread() in gzio.c [Brown]
+- Use zlib header window size if windowBits is 0 in inflateInit2()
+- Remove compressBound() call in deflate.c to avoid linking compress.o
+- Replace use of errno in gz* with functions, support WinCE [Alves]
+- Provide alternative to perror() in minigzip.c for WinCE [Alves]
+- Don't use _vsnprintf on later versions of MSVC [Lowman]
+- Add CMake build script and input file [Lowman]
+- Update contrib/minizip to 1.1 [Svensson, Vollant]
+- Moved nintendods directory from contrib to root
+- Replace gzio.c with a new set of routines with the same functionality
+- Add gzbuffer(), gzoffset(), gzclose_r(), gzclose_w() as part of above
+- Update contrib/minizip to 1.1b
+- Change gzeof() to return 0 on error instead of -1 to agree with zlib.h
+
+Changes in 1.2.3.4 (21 Dec 2009)
+- Use old school .SUFFIXES in Makefile.in for FreeBSD compatibility
+- Update comments in configure and Makefile.in for default --shared
+- Fix test -z's in configure [Marquess]
+- Build examplesh and minigzipsh when not testing
+- Change NULL's to Z_NULL's in deflate.c and in comments in zlib.h
+- Import LDFLAGS from the environment in configure
+- Fix configure to populate SFLAGS with discovered CFLAGS options
+- Adapt make_vms.com to the new Makefile.in [Zinser]
+- Add zlib2ansi script for C++ compilation [Marquess]
+- Add _FILE_OFFSET_BITS=64 test to make test (when applicable)
+- Add AMD64 assembler code for longest match to contrib [Teterin]
+- Include options from $SFLAGS when doing $LDSHARED
+- Simplify 64-bit file support by introducing z_off64_t type
+- Make shared object files in objs directory to work around old Sun cc
+- Use only three-part version number for Darwin shared compiles
+- Add rc option to ar in Makefile.in for when ./configure not run
+- Add -WI,-rpath,. to LDFLAGS for OSF 1 V4*
+- Set LD_LIBRARYN32_PATH for SGI IRIX shared compile
+- Protect against _FILE_OFFSET_BITS being defined when compiling zlib
+- Rename Makefile.in targets allstatic to static and allshared to shared
+- Fix static and shared Makefile.in targets to be independent
+- Correct error return bug in gz_open() by setting state [Brown]
+- Put spaces before ;;'s in configure for better sh compatibility
+- Add pigz.c (parallel implementation of gzip) to examples/
+- Correct constant in crc32.c to UL [Leventhal]
+- Reject negative lengths in crc32_combine()
+- Add inflateReset2() function to work like inflateEnd()/inflateInit2()
+- Include sys/types.h for _LARGEFILE64_SOURCE [Brown]
+- Correct typo in doc/algorithm.txt [Janik]
+- Fix bug in adler32_combine() [Zhu]
+- Catch missing-end-of-block-code error in all inflates and in puff
+    Assures that random input to inflate eventually results in an error
+- Added enough.c (calculation of ENOUGH for inftrees.h) to examples/
+- Update ENOUGH and its usage to reflect discovered bounds
+- Fix gzerror() error report on empty input file [Brown]
+- Add ush casts in trees.c to avoid pedantic runtime errors
+- Fix typo in zlib.h uncompress() description [Reiss]
+- Correct inflate() comments with regard to automatic header detection
+- Remove deprecation comment on Z_PARTIAL_FLUSH (it stays)
+- Put new version of gzlog (2.0) in examples with interruption recovery
+- Add puff compile option to permit invalid distance-too-far streams
+- Add puff TEST command options, ability to read piped input
+- Prototype the *64 functions in zlib.h when _FILE_OFFSET_BITS == 64, but
+  _LARGEFILE64_SOURCE not defined
+- Fix Z_FULL_FLUSH to truly erase the past by resetting s->strstart
+- Fix deflateSetDictionary() to use all 32K for output consistency
+- Remove extraneous #define MIN_LOOKAHEAD in deflate.c (in deflate.h)
+- Clear bytes after deflate lookahead to avoid use of uninitialized data
+- Change a limit in inftrees.c to be more transparent to Coverity Prevent
+- Update win32/zlib.def with exported symbols from zlib.h
+- Correct spelling errors in zlib.h [Willem, Sobrado]
+- Allow Z_BLOCK for deflate() to force a new block
+- Allow negative bits in inflatePrime() to delete existing bit buffer
+- Add Z_TREES flush option to inflate() to return at end of trees
+- Add inflateMark() to return current state information for random access
+- Add Makefile for NintendoDS to contrib [Costa]
+- Add -w in configure compile tests to avoid spurious warnings [Beucler]
+- Fix typos in zlib.h comments for deflateSetDictionary()
+- Fix EOF detection in transparent gzread() [Maier]
+
+Changes in 1.2.3.3 (2 October 2006)
+- Make --shared the default for configure, add a --static option
+- Add compile option to permit invalid distance-too-far streams
+- Add inflateUndermine() function which is required to enable above
+- Remove use of "this" variable name for C++ compatibility [Marquess]
+- Add testing of shared library in make test, if shared library built
+- Use ftello() and fseeko() if available instead of ftell() and fseek()
+- Provide two versions of all functions that use the z_off_t type for
+  binary compatibility -- a normal version and a 64-bit offset version,
+  per the Large File Support Extension when _LARGEFILE64_SOURCE is
+  defined; use the 64-bit versions by default when _FILE_OFFSET_BITS
+  is defined to be 64
+- Add a --uname= option to configure to perhaps help with cross-compiling
+
+Changes in 1.2.3.2 (3 September 2006)
+- Turn off silly Borland warnings [Hay]
+- Use off64_t and define _LARGEFILE64_SOURCE when present
+- Fix missing dependency on inffixed.h in Makefile.in
+- Rig configure --shared to build both shared and static [Teredesai, Truta]
+- Remove zconf.in.h and instead create a new zlibdefs.h file
+- Fix contrib/minizip/unzip.c non-encrypted after encrypted [Vollant]
+- Add treebuild.xml (see http://treebuild.metux.de/) [Weigelt]
+
+Changes in 1.2.3.1 (16 August 2006)
+- Add watcom directory with OpenWatcom make files [Daniel]
+- Remove #undef of FAR in zconf.in.h for MVS [Fedtke]
+- Update make_vms.com [Zinser]
+- Use -fPIC for shared build in configure [Teredesai, Nicholson]
+- Use only major version number for libz.so on IRIX and OSF1 [Reinholdtsen]
+- Use fdopen() (not _fdopen()) for Interix in zutil.h [Bäck]
+- Add some FAQ entries about the contrib directory
+- Update the MVS question in the FAQ
+- Avoid extraneous reads after EOF in gzio.c [Brown]
+- Correct spelling of "successfully" in gzio.c [Randers-Pehrson]
+- Add comments to zlib.h about gzerror() usage [Brown]
+- Set extra flags in gzip header in gzopen() like deflate() does
+- Make configure options more compatible with double-dash conventions
+  [Weigelt]
+- Clean up compilation under Solaris SunStudio cc [Rowe, Reinholdtsen]
+- Fix uninstall target in Makefile.in [Truta]
+- Add pkgconfig support [Weigelt]
+- Use $(DESTDIR) macro in Makefile.in [Reinholdtsen, Weigelt]
+- Replace set_data_type() with a more accurate detect_data_type() in
+  trees.c, according to the txtvsbin.txt document [Truta]
+- Swap the order of #include <stdio.h> and #include "zlib.h" in
+  gzio.c, example.c and minigzip.c [Truta]
+- Shut up annoying VS2005 warnings about standard C deprecation [Rowe,
+  Truta] (where?)
+- Fix target "clean" from win32/Makefile.bor [Truta]
+- Create .pdb and .manifest files in win32/makefile.msc [Ziegler, Rowe]
+- Update zlib www home address in win32/DLL_FAQ.txt [Truta]
+- Update contrib/masmx86/inffas32.asm for VS2005 [Vollant, Van Wassenhove]
+- Enable browse info in the "Debug" and "ASM Debug" configurations in
+  the Visual C++ 6 project, and set (non-ASM) "Debug" as default [Truta]
+- Add pkgconfig support [Weigelt]
+- Add ZLIB_VER_MAJOR, ZLIB_VER_MINOR and ZLIB_VER_REVISION in zlib.h,
+  for use in win32/zlib1.rc [Polushin, Rowe, Truta]
+- Add a document that explains the new text detection scheme to
+  doc/txtvsbin.txt [Truta]
+- Add rfc1950.txt, rfc1951.txt and rfc1952.txt to doc/ [Truta]
+- Move algorithm.txt into doc/ [Truta]
+- Synchronize FAQ with website
+- Fix compressBound(), was low for some pathological cases [Fearnley]
+- Take into account wrapper variations in deflateBound()
+- Set examples/zpipe.c input and output to binary mode for Windows
+- Update examples/zlib_how.html with new zpipe.c (also web site)
+- Fix some warnings in examples/gzlog.c and examples/zran.c (it seems
+  that gcc became pickier in 4.0)
+- Add zlib.map for Linux: "All symbols from zlib-1.1.4 remain
+  un-versioned, the patch adds versioning only for symbols introduced in
+  zlib-1.2.0 or later.  It also declares as local those symbols which are
+  not designed to be exported." [Levin]
+- Update Z_PREFIX list in zconf.in.h, add --zprefix option to configure
+- Do not initialize global static by default in trees.c, add a response
+  NO_INIT_GLOBAL_POINTERS to initialize them if needed [Marquess]
+- Don't use strerror() in gzio.c under WinCE [Yakimov]
+- Don't use errno.h in zutil.h under WinCE [Yakimov]
+- Move arguments for AR to its usage to allow replacing ar [Marot]
+- Add HAVE_VISIBILITY_PRAGMA in zconf.in.h for Mozilla [Randers-Pehrson]
+- Improve inflateInit() and inflateInit2() documentation
+- Fix structure size comment in inflate.h
+- Change configure help option from --h* to --help [Santos]
+
+Changes in 1.2.3 (18 July 2005)
+- Apply security vulnerability fixes to contrib/infback9 as well
+- Clean up some text files (carriage returns, trailing space)
+- Update testzlib, vstudio, masmx64, and masmx86 in contrib [Vollant]
+
+Changes in 1.2.2.4 (11 July 2005)
+- Add inflatePrime() function for starting inflation at bit boundary
+- Avoid some Visual C warnings in deflate.c
+- Avoid more silly Visual C warnings in inflate.c and inftrees.c for 64-bit
+  compile
+- Fix some spelling errors in comments [Betts]
+- Correct inflateInit2() error return documentation in zlib.h
+- Add zran.c example of compressed data random access to examples
+  directory, shows use of inflatePrime()
+- Fix cast for assignments to strm->state in inflate.c and infback.c
+- Fix zlibCompileFlags() in zutil.c to use 1L for long shifts [Oberhumer]
+- Move declarations of gf2 functions to right place in crc32.c [Oberhumer]
+- Add cast in trees.c t avoid a warning [Oberhumer]
+- Avoid some warnings in fitblk.c, gun.c, gzjoin.c in examples [Oberhumer]
+- Update make_vms.com [Zinser]
+- Initialize state->write in inflateReset() since copied in inflate_fast()
+- Be more strict on incomplete code sets in inflate_table() and increase
+  ENOUGH and MAXD -- this repairs a possible security vulnerability for
+  invalid inflate input.  Thanks to Tavis Ormandy and Markus Oberhumer for
+  discovering the vulnerability and providing test cases
+- Add ia64 support to configure for HP-UX [Smith]
+- Add error return to gzread() for format or i/o error [Levin]
+- Use malloc.h for OS/2 [Necasek]
+
+Changes in 1.2.2.3 (27 May 2005)
+- Replace 1U constants in inflate.c and inftrees.c for 64-bit compile
+- Typecast fread() return values in gzio.c [Vollant]
+- Remove trailing space in minigzip.c outmode (VC++ can't deal with it)
+- Fix crc check bug in gzread() after gzungetc() [Heiner]
+- Add the deflateTune() function to adjust internal compression parameters
+- Add a fast gzip decompressor, gun.c, to examples (use of inflateBack)
+- Remove an incorrect assertion in examples/zpipe.c
+- Add C++ wrapper in infback9.h [Donais]
+- Fix bug in inflateCopy() when decoding fixed codes
+- Note in zlib.h how much deflateSetDictionary() actually uses
+- Remove USE_DICT_HEAD in deflate.c (would mess up inflate if used)
+- Add _WIN32_WCE to define WIN32 in zconf.in.h [Spencer]
+- Don't include stderr.h or errno.h for _WIN32_WCE in zutil.h [Spencer]
+- Add gzdirect() function to indicate transparent reads
+- Update contrib/minizip [Vollant]
+- Fix compilation of deflate.c when both ASMV and FASTEST [Oberhumer]
+- Add casts in crc32.c to avoid warnings [Oberhumer]
+- Add contrib/masmx64 [Vollant]
+- Update contrib/asm586, asm686, masmx86, testzlib, vstudio [Vollant]
+
+Changes in 1.2.2.2 (30 December 2004)
+- Replace structure assignments in deflate.c and inflate.c with zmemcpy to
+  avoid implicit memcpy calls (portability for no-library compilation)
+- Increase sprintf() buffer size in gzdopen() to allow for large numbers
+- Add INFLATE_STRICT to check distances against zlib header
+- Improve WinCE errno handling and comments [Chang]
+- Remove comment about no gzip header processing in FAQ
+- Add Z_FIXED strategy option to deflateInit2() to force fixed trees
+- Add updated make_vms.com [Coghlan], update README
+- Create a new "examples" directory, move gzappend.c there, add zpipe.c,
+  fitblk.c, gzlog.[ch], gzjoin.c, and zlib_how.html
+- Add FAQ entry and comments in deflate.c on uninitialized memory access
+- Add Solaris 9 make options in configure [Gilbert]
+- Allow strerror() usage in gzio.c for STDC
+- Fix DecompressBuf in contrib/delphi/ZLib.pas [ManChesTer]
+- Update contrib/masmx86/inffas32.asm and gvmat32.asm [Vollant]
+- Use z_off_t for adler32_combine() and crc32_combine() lengths
+- Make adler32() much faster for small len
+- Use OS_CODE in deflate() default gzip header
+
+Changes in 1.2.2.1 (31 October 2004)
+- Allow inflateSetDictionary() call for raw inflate
+- Fix inflate header crc check bug for file names and comments
+- Add deflateSetHeader() and gz_header structure for custom gzip headers
+- Add inflateGetheader() to retrieve gzip headers
+- Add crc32_combine() and adler32_combine() functions
+- Add alloc_func, free_func, in_func, out_func to Z_PREFIX list
+- Use zstreamp consistently in zlib.h (inflate_back functions)
+- Remove GUNZIP condition from definition of inflate_mode in inflate.h
+  and in contrib/inflate86/inffast.S [Truta, Anderson]
+- Add support for AMD64 in contrib/inflate86/inffas86.c [Anderson]
+- Update projects/README.projects and projects/visualc6 [Truta]
+- Update win32/DLL_FAQ.txt [Truta]
+- Avoid warning under NO_GZCOMPRESS in gzio.c; fix typo [Truta]
+- Deprecate Z_ASCII; use Z_TEXT instead [Truta]
+- Use a new algorithm for setting strm->data_type in trees.c [Truta]
+- Do not define an exit() prototype in zutil.c unless DEBUG defined
+- Remove prototype of exit() from zutil.c, example.c, minigzip.c [Truta]
+- Add comment in zlib.h for Z_NO_FLUSH parameter to deflate()
+- Fix Darwin build version identification [Peterson]
+
+Changes in 1.2.2 (3 October 2004)
+- Update zlib.h comments on gzip in-memory processing
+- Set adler to 1 in inflateReset() to support Java test suite [Walles]
+- Add contrib/dotzlib [Ravn]
+- Update win32/DLL_FAQ.txt [Truta]
+- Update contrib/minizip [Vollant]
+- Move contrib/visual-basic.txt to old/ [Truta]
+- Fix assembler builds in projects/visualc6/ [Truta]
+
+Changes in 1.2.1.2 (9 September 2004)
+- Update INDEX file
+- Fix trees.c to update strm->data_type (no one ever noticed!)
+- Fix bug in error case in inflate.c, infback.c, and infback9.c [Brown]
+- Add "volatile" to crc table flag declaration (for DYNAMIC_CRC_TABLE)
+- Add limited multitasking protection to DYNAMIC_CRC_TABLE
+- Add NO_vsnprintf for VMS in zutil.h [Mozilla]
+- Don't declare strerror() under VMS [Mozilla]
+- Add comment to DYNAMIC_CRC_TABLE to use get_crc_table() to initialize
+- Update contrib/ada [Anisimkov]
+- Update contrib/minizip [Vollant]
+- Fix configure to not hardcode directories for Darwin [Peterson]
+- Fix gzio.c to not return error on empty files [Brown]
+- Fix indentation; update version in contrib/delphi/ZLib.pas and
+  contrib/pascal/zlibpas.pas [Truta]
+- Update mkasm.bat in contrib/masmx86 [Truta]
+- Update contrib/untgz [Truta]
+- Add projects/README.projects [Truta]
+- Add project for MS Visual C++ 6.0 in projects/visualc6 [Cadieux, Truta]
+- Update win32/DLL_FAQ.txt [Truta]
+- Update list of Z_PREFIX symbols in zconf.h [Randers-Pehrson, Truta]
+- Remove an unnecessary assignment to curr in inftrees.c [Truta]
+- Add OS/2 to exe builds in configure [Poltorak]
+- Remove err dummy parameter in zlib.h [Kientzle]
+
+Changes in 1.2.1.1 (9 January 2004)
+- Update email address in README
+- Several FAQ updates
+- Fix a big fat bug in inftrees.c that prevented decoding valid
+  dynamic blocks with only literals and no distance codes --
+  Thanks to "Hot Emu" for the bug report and sample file
+- Add a note to puff.c on no distance codes case
+
+Changes in 1.2.1 (17 November 2003)
+- Remove a tab in contrib/gzappend/gzappend.c
+- Update some interfaces in contrib for new zlib functions
+- Update zlib version number in some contrib entries
+- Add Windows CE definition for ptrdiff_t in zutil.h [Mai, Truta]
+- Support shared libraries on Hurd and KFreeBSD [Brown]
+- Fix error in NO_DIVIDE option of adler32.c
+
+Changes in 1.2.0.8 (4 November 2003)
+- Update version in contrib/delphi/ZLib.pas and contrib/pascal/zlibpas.pas
+- Add experimental NO_DIVIDE #define in adler32.c
+    - Possibly faster on some processors (let me know if it is)
+- Correct Z_BLOCK to not return on first inflate call if no wrap
+- Fix strm->data_type on inflate() return to correctly indicate EOB
+- Add deflatePrime() function for appending in the middle of a byte
+- Add contrib/gzappend for an example of appending to a stream
+- Update win32/DLL_FAQ.txt [Truta]
+- Delete Turbo C comment in README [Truta]
+- Improve some indentation in zconf.h [Truta]
+- Fix infinite loop on bad input in configure script [Church]
+- Fix gzeof() for concatenated gzip files [Johnson]
+- Add example to contrib/visual-basic.txt [Michael B.]
+- Add -p to mkdir's in Makefile.in [vda]
+- Fix configure to properly detect presence or lack of printf functions
+- Add AS400 support [Monnerat]
+- Add a little Cygwin support [Wilson]
+
+Changes in 1.2.0.7 (21 September 2003)
+- Correct some debug formats in contrib/infback9
+- Cast a type in a debug statement in trees.c
+- Change search and replace delimiter in configure from % to # [Beebe]
+- Update contrib/untgz to 0.2 with various fixes [Truta]
+- Add build support for Amiga [Nikl]
+- Remove some directories in old that have been updated to 1.2
+- Add dylib building for Mac OS X in configure and Makefile.in
+- Remove old distribution stuff from Makefile
+- Update README to point to DLL_FAQ.txt, and add comment on Mac OS X
+- Update links in README
+
+Changes in 1.2.0.6 (13 September 2003)
+- Minor FAQ updates
+- Update contrib/minizip to 1.00 [Vollant]
+- Remove test of gz functions in example.c when GZ_COMPRESS defined [Truta]
+- Update POSTINC comment for 68060 [Nikl]
+- Add contrib/infback9 with deflate64 decoding (unsupported)
+- For MVS define NO_vsnprintf and undefine FAR [van Burik]
+- Add pragma for fdopen on MVS [van Burik]
+
+Changes in 1.2.0.5 (8 September 2003)
+- Add OF to inflateBackEnd() declaration in zlib.h
+- Remember start when using gzdopen in the middle of a file
+- Use internal off_t counters in gz* functions to properly handle seeks
+- Perform more rigorous check for distance-too-far in inffast.c
+- Add Z_BLOCK flush option to return from inflate at block boundary
+- Set strm->data_type on return from inflate
+    - Indicate bits unused, if at block boundary, and if in last block
+- Replace size_t with ptrdiff_t in crc32.c, and check for correct size
+- Add condition so old NO_DEFLATE define still works for compatibility
+- FAQ update regarding the Windows DLL [Truta]
+- INDEX update: add qnx entry, remove aix entry [Truta]
+- Install zlib.3 into mandir [Wilson]
+- Move contrib/zlib_dll_FAQ.txt to win32/DLL_FAQ.txt; update [Truta]
+- Adapt the zlib interface to the new DLL convention guidelines [Truta]
+- Introduce ZLIB_WINAPI macro to allow the export of functions using
+  the WINAPI calling convention, for Visual Basic [Vollant, Truta]
+- Update msdos and win32 scripts and makefiles [Truta]
+- Export symbols by name, not by ordinal, in win32/zlib.def [Truta]
+- Add contrib/ada [Anisimkov]
+- Move asm files from contrib/vstudio/vc70_32 to contrib/asm386 [Truta]
+- Rename contrib/asm386 to contrib/masmx86 [Truta, Vollant]
+- Add contrib/masm686 [Truta]
+- Fix offsets in contrib/inflate86 and contrib/masmx86/inffas32.asm
+  [Truta, Vollant]
+- Update contrib/delphi; rename to contrib/pascal; add example [Truta]
+- Remove contrib/delphi2; add a new contrib/delphi [Truta]
+- Avoid inclusion of the nonstandard <memory.h> in contrib/iostream,
+  and fix some method prototypes [Truta]
+- Fix the ZCR_SEED2 constant to avoid warnings in contrib/minizip
+  [Truta]
+- Avoid the use of backslash (\) in contrib/minizip [Vollant]
+- Fix file time handling in contrib/untgz; update makefiles [Truta]
+- Update contrib/vstudio/vc70_32 to comply with the new DLL guidelines
+  [Vollant]
+- Remove contrib/vstudio/vc15_16 [Vollant]
+- Rename contrib/vstudio/vc70_32 to contrib/vstudio/vc7 [Truta]
+- Update README.contrib [Truta]
+- Invert the assignment order of match_head and s->prev[...] in
+  INSERT_STRING [Truta]
+- Compare TOO_FAR with 32767 instead of 32768, to avoid 16-bit warnings
+  [Truta]
+- Compare function pointers with 0, not with NULL or Z_NULL [Truta]
+- Fix prototype of syncsearch in inflate.c [Truta]
+- Introduce ASMINF macro to be enabled when using an ASM implementation
+  of inflate_fast [Truta]
+- Change NO_DEFLATE to NO_GZCOMPRESS [Truta]
+- Modify test_gzio in example.c to take a single file name as a
+  parameter [Truta]
+- Exit the example.c program if gzopen fails [Truta]
+- Add type casts around strlen in example.c [Truta]
+- Remove casting to sizeof in minigzip.c; give a proper type
+  to the variable compared with SUFFIX_LEN [Truta]
+- Update definitions of STDC and STDC99 in zconf.h [Truta]
+- Synchronize zconf.h with the new Windows DLL interface [Truta]
+- Use SYS16BIT instead of __32BIT__ to distinguish between
+  16- and 32-bit platforms [Truta]
+- Use far memory allocators in small 16-bit memory models for
+  Turbo C [Truta]
+- Add info about the use of ASMV, ASMINF and ZLIB_WINAPI in
+  zlibCompileFlags [Truta]
+- Cygwin has vsnprintf [Wilson]
+- In Windows16, OS_CODE is 0, as in MSDOS [Truta]
+- In Cygwin, OS_CODE is 3 (Unix), not 11 (Windows32) [Wilson]
+
+Changes in 1.2.0.4 (10 August 2003)
+- Minor FAQ updates
+- Be more strict when checking inflateInit2's windowBits parameter
+- Change NO_GUNZIP compile option to NO_GZIP to cover deflate as well
+- Add gzip wrapper option to deflateInit2 using windowBits
+- Add updated QNX rule in configure and qnx directory [Bonnefoy]
+- Make inflate distance-too-far checks more rigorous
+- Clean up FAR usage in inflate
+- Add casting to sizeof() in gzio.c and minigzip.c
+
+Changes in 1.2.0.3 (19 July 2003)
+- Fix silly error in gzungetc() implementation [Vollant]
+- Update contrib/minizip and contrib/vstudio [Vollant]
+- Fix printf format in example.c
+- Correct cdecl support in zconf.in.h [Anisimkov]
+- Minor FAQ updates
+
+Changes in 1.2.0.2 (13 July 2003)
+- Add ZLIB_VERNUM in zlib.h for numerical preprocessor comparisons
+- Attempt to avoid warnings in crc32.c for pointer-int conversion
+- Add AIX to configure, remove aix directory [Bakker]
+- Add some casts to minigzip.c
+- Improve checking after insecure sprintf() or vsprintf() calls
+- Remove #elif's from crc32.c
+- Change leave label to inf_leave in inflate.c and infback.c to avoid
+  library conflicts
+- Remove inflate gzip decoding by default--only enable gzip decoding by
+  special request for stricter backward compatibility
+- Add zlibCompileFlags() function to return compilation information
+- More typecasting in deflate.c to avoid warnings
+- Remove leading underscore from _Capital #defines [Truta]
+- Fix configure to link shared library when testing
+- Add some Windows CE target adjustments [Mai]
+- Remove #define ZLIB_DLL in zconf.h [Vollant]
+- Add zlib.3 [Rodgers]
+- Update RFC URL in deflate.c and algorithm.txt [Mai]
+- Add zlib_dll_FAQ.txt to contrib [Truta]
+- Add UL to some constants [Truta]
+- Update minizip and vstudio [Vollant]
+- Remove vestigial NEED_DUMMY_RETURN from zconf.in.h
+- Expand use of NO_DUMMY_DECL to avoid all dummy structures
+- Added iostream3 to contrib [Schwardt]
+- Replace rewind() with fseek() for WinCE [Truta]
+- Improve setting of zlib format compression level flags
+    - Report 0 for huffman and rle strategies and for level == 0 or 1
+    - Report 2 only for level == 6
+- Only deal with 64K limit when necessary at compile time [Truta]
+- Allow TOO_FAR check to be turned off at compile time [Truta]
+- Add gzclearerr() function [Souza]
+- Add gzungetc() function
+
+Changes in 1.2.0.1 (17 March 2003)
+- Add Z_RLE strategy for run-length encoding [Truta]
+    - When Z_RLE requested, restrict matches to distance one
+    - Update zlib.h, minigzip.c, gzopen(), gzdopen() for Z_RLE
+- Correct FASTEST compilation to allow level == 0
+- Clean up what gets compiled for FASTEST
+- Incorporate changes to zconf.in.h [Vollant]
+    - Refine detection of Turbo C need for dummy returns
+    - Refine ZLIB_DLL compilation
+    - Include additional header file on VMS for off_t typedef
+- Try to use _vsnprintf where it supplants vsprintf [Vollant]
+- Add some casts in inffast.c
+- Enhance comments in zlib.h on what happens if gzprintf() tries to
+  write more than 4095 bytes before compression
+- Remove unused state from inflateBackEnd()
+- Remove exit(0) from minigzip.c, example.c
+- Get rid of all those darn tabs
+- Add "check" target to Makefile.in that does the same thing as "test"
+- Add "mostlyclean" and "maintainer-clean" targets to Makefile.in
+- Update contrib/inflate86 [Anderson]
+- Update contrib/testzlib, contrib/vstudio, contrib/minizip [Vollant]
+- Add msdos and win32 directories with makefiles [Truta]
+- More additions and improvements to the FAQ
+
+Changes in 1.2.0 (9 March 2003)
+- New and improved inflate code
+    - About 20% faster
+    - Does not allocate 32K window unless and until needed
+    - Automatically detects and decompresses gzip streams
+    - Raw inflate no longer needs an extra dummy byte at end
+    - Added inflateBack functions using a callback interface--even faster
+      than inflate, useful for file utilities (gzip, zip)
+    - Added inflateCopy() function to record state for random access on
+      externally generated deflate streams (e.g. in gzip files)
+    - More readable code (I hope)
+- New and improved crc32()
+    - About 50% faster, thanks to suggestions from Rodney Brown
+- Add deflateBound() and compressBound() functions
+- Fix memory leak in deflateInit2()
+- Permit setting dictionary for raw deflate (for parallel deflate)
+- Fix const declaration for gzwrite()
+- Check for some malloc() failures in gzio.c
+- Fix bug in gzopen() on single-byte file 0x1f
+- Fix bug in gzread() on concatenated file with 0x1f at end of buffer
+  and next buffer doesn't start with 0x8b
+- Fix uncompress() to return Z_DATA_ERROR on truncated input
+- Free memory at end of example.c
+- Remove MAX #define in trees.c (conflicted with some libraries)
+- Fix static const's in deflate.c, gzio.c, and zutil.[ch]
+- Declare malloc() and free() in gzio.c if STDC not defined
+- Use malloc() instead of calloc() in zutil.c if int big enough
+- Define STDC for AIX
+- Add aix/ with approach for compiling shared library on AIX
+- Add HP-UX support for shared libraries in configure
+- Add OpenUNIX support for shared libraries in configure
+- Use $cc instead of gcc to build shared library
+- Make prefix directory if needed when installing
+- Correct Macintosh avoidance of typedef Byte in zconf.h
+- Correct Turbo C memory allocation when under Linux
+- Use libz.a instead of -lz in Makefile (assure use of compiled library)
+- Update configure to check for snprintf or vsnprintf functions and their
+  return value, warn during make if using an insecure function
+- Fix configure problem with compile-time knowledge of HAVE_UNISTD_H that
+  is lost when library is used--resolution is to build new zconf.h
+- Documentation improvements (in zlib.h):
+    - Document raw deflate and inflate
+    - Update RFCs URL
+    - Point out that zlib and gzip formats are different
+    - Note that Z_BUF_ERROR is not fatal
+    - Document string limit for gzprintf() and possible buffer overflow
+    - Note requirement on avail_out when flushing
+    - Note permitted values of flush parameter of inflate()
+- Add some FAQs (and even answers) to the FAQ
+- Add contrib/inflate86/ for x86 faster inflate
+- Add contrib/blast/ for PKWare Data Compression Library decompression
+- Add contrib/puff/ simple inflate for deflate format description
+
+Changes in 1.1.4 (11 March 2002)
+- ZFREE was repeated on same allocation on some error conditions
+  This creates a security problem described in
+  http://www.zlib.org/advisory-2002-03-11.txt
+- Returned incorrect error (Z_MEM_ERROR) on some invalid data
+- Avoid accesses before window for invalid distances with inflate window
+  less than 32K
+- force windowBits > 8 to avoid a bug in the encoder for a window size
+  of 256 bytes. (A complete fix will be available in 1.1.5)
+
+Changes in 1.1.3 (9 July 1998)
+- fix "an inflate input buffer bug that shows up on rare but persistent
+  occasions" (Mark)
+- fix gzread and gztell for concatenated .gz files (Didier Le Botlan)
+- fix gzseek(..., SEEK_SET) in write mode
+- fix crc check after a gzeek (Frank Faubert)
+- fix miniunzip when the last entry in a zip file is itself a zip file
+  (J Lillge)
+- add contrib/asm586 and contrib/asm686 (Brian Raiter)
+  See http://www.muppetlabs.com/~breadbox/software/assembly.html
+- add support for Delphi 3 in contrib/delphi (Bob Dellaca)
+- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti)
+- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren)
+- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks)
+- added a FAQ file
+
+- Support gzdopen on Mac with Metrowerks (Jason Linhart)
+- Do not redefine Byte on Mac (Brad Pettit & Jason Linhart)
+- define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young)
+- avoid some warnings with Borland C (Tom Tanner)
+- fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant)
+- emulate utime() for WIN32 in contrib/untgz  (Gilles Vollant)
+- allow several arguments to configure (Tim Mooney, Frodo Looijaard)
+- use libdir and includedir in Makefile.in (Tim Mooney)
+- support shared libraries on OSF1 V4 (Tim Mooney)
+- remove so_locations in "make clean"  (Tim Mooney)
+- fix maketree.c compilation error (Glenn, Mark)
+- Python interface to zlib now in Python 1.5 (Jeremy Hylton)
+- new Makefile.riscos (Rich Walker)
+- initialize static descriptors in trees.c for embedded targets (Nick Smith)
+- use "foo-gz" in example.c for RISCOS and VMS (Nick Smith)
+- add the OS/2 files in Makefile.in too (Andrew Zabolotny)
+- fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane)
+- fix maketree.c to allow clean compilation of inffixed.h (Mark)
+- fix parameter check in deflateCopy (Gunther Nikl)
+- cleanup trees.c, use compressed_len only in debug mode (Christian Spieler)
+- Many portability patches by Christian Spieler:
+  . zutil.c, zutil.h: added "const" for zmem*
+  . Make_vms.com: fixed some typos
+  . Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists
+  . msdos/Makefile.msc: remove "default rtl link library" info from obj files
+  . msdos/Makefile.*: use model-dependent name for the built zlib library
+  . msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc:
+     new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT)
+- use define instead of typedef for Bytef also for MSC small/medium (Tom Lane)
+- replace __far with _far for better portability (Christian Spieler, Tom Lane)
+- fix test for errno.h in configure (Tim Newsham)
+
+Changes in 1.1.2 (19 March 98)
+- added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant)
+  See http://www.winimage.com/zLibDll/unzip.html
+- preinitialize the inflate tables for fixed codes, to make the code
+  completely thread safe (Mark)
+- some simplifications and slight speed-up to the inflate code (Mark)
+- fix gzeof on non-compressed files (Allan Schrum)
+- add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs)
+- use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn)
+- added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny)
+- add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori)
+- do not wrap extern "C" around system includes (Tom Lane)
+- mention zlib binding for TCL in README (Andreas Kupries)
+- added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert)
+- allow "make install prefix=..." even after configure (Glenn Randers-Pehrson)
+- allow "configure --prefix $HOME" (Tim Mooney)
+- remove warnings in example.c and gzio.c (Glenn Randers-Pehrson)
+- move Makefile.sas to amiga/Makefile.sas
+
+Changes in 1.1.1 (27 Feb 98)
+- fix macros _tr_tally_* in deflate.h for debug mode  (Glenn Randers-Pehrson)
+- remove block truncation heuristic which had very marginal effect for zlib
+  (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the
+  compression ratio on some files. This also allows inlining _tr_tally for
+  matches in deflate_slow
+- added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier)
+
+Changes in 1.1.0 (24 Feb 98)
+- do not return STREAM_END prematurely in inflate (John Bowler)
+- revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler)
+- compile with -DFASTEST to get compression code optimized for speed only
+- in minigzip, try mmap'ing the input file first (Miguel Albrecht)
+- increase size of I/O buffers in minigzip.c and gzio.c (not a big gain
+  on Sun but significant on HP)
+
+- add a pointer to experimental unzip library in README (Gilles Vollant)
+- initialize variable gcc in configure (Chris Herborth)
+
+Changes in 1.0.9 (17 Feb 1998)
+- added gzputs and gzgets functions
+- do not clear eof flag in gzseek (Mark Diekhans)
+- fix gzseek for files in transparent mode (Mark Diekhans)
+- do not assume that vsprintf returns the number of bytes written (Jens Krinke)
+- replace EXPORT with ZEXPORT to avoid conflict with other programs
+- added compress2 in zconf.h, zlib.def, zlib.dnt
+- new asm code from Gilles Vollant in contrib/asm386
+- simplify the inflate code (Mark):
+ . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new()
+ . ZALLOC the length list in inflate_trees_fixed() instead of using stack
+ . ZALLOC the value area for huft_build() instead of using stack
+ . Simplify Z_FINISH check in inflate()
+
+- Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8
+- in inftrees.c, avoid cc -O bug on HP (Farshid Elahi)
+- in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with
+  the declaration of FAR (Gilles Vollant)
+- install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann)
+- read_buf buf parameter of type Bytef* instead of charf*
+- zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout)
+- do not redeclare unlink in minigzip.c for WIN32 (John Bowler)
+- fix check for presence of directories in "make install" (Ian Willis)
+
+Changes in 1.0.8 (27 Jan 1998)
+- fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant)
+- fix gzgetc and gzputc for big endian systems (Markus Oberhumer)
+- added compress2() to allow setting the compression level
+- include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong)
+- use constant arrays for the static trees in trees.c instead of computing
+  them at run time (thanks to Ken Raeburn for this suggestion). To create
+  trees.h, compile with GEN_TREES_H and run "make test"
+- check return code of example in "make test" and display result
+- pass minigzip command line options to file_compress
+- simplifying code of inflateSync to avoid gcc 2.8 bug
+
+- support CC="gcc -Wall" in configure -s (QingLong)
+- avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn)
+- fix test for shared library support to avoid compiler warnings
+- zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant)
+- check for TARGET_OS_MAC in addition to MACOS (Brad Pettit)
+- do not use fdopen for Metrowerks on Mac (Brad Pettit))
+- add checks for gzputc and gzputc in example.c
+- avoid warnings in gzio.c and deflate.c (Andreas Kleinert)
+- use const for the CRC table (Ken Raeburn)
+- fixed "make uninstall" for shared libraries
+- use Tracev instead of Trace in infblock.c
+- in example.c use correct compressed length for test_sync
+- suppress +vnocompatwarnings in configure for HPUX (not always supported)
+
+Changes in 1.0.7 (20 Jan 1998)
+- fix gzseek which was broken in write mode
+- return error for gzseek to negative absolute position
+- fix configure for Linux (Chun-Chung Chen)
+- increase stack space for MSC (Tim Wegner)
+- get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant)
+- define EXPORTVA for gzprintf (Gilles Vollant)
+- added man page zlib.3 (Rick Rodgers)
+- for contrib/untgz, fix makedir() and improve Makefile
+
+- check gzseek in write mode in example.c
+- allocate extra buffer for seeks only if gzseek is actually called
+- avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant)
+- add inflateSyncPoint in zconf.h
+- fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def
+
+Changes in 1.0.6 (19 Jan 1998)
+- add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and
+  gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code)
+- Fix a deflate bug occurring only with compression level 0 (thanks to
+  Andy Buckler for finding this one)
+- In minigzip, pass transparently also the first byte for .Z files
+- return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress()
+- check Z_FINISH in inflate (thanks to Marc Schluper)
+- Implement deflateCopy (thanks to Adam Costello)
+- make static libraries by default in configure, add --shared option
+- move MSDOS or Windows specific files to directory msdos
+- suppress the notion of partial flush to simplify the interface
+  (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4)
+- suppress history buffer provided by application to simplify the interface
+  (this feature was not implemented anyway in 1.0.4)
+- next_in and avail_in must be initialized before calling inflateInit or
+  inflateInit2
+- add EXPORT in all exported functions (for Windows DLL)
+- added Makefile.nt (thanks to Stephen Williams)
+- added the unsupported "contrib" directory:
+   contrib/asm386/ by Gilles Vollant <info@winimage.com>
+        386 asm code replacing longest_match()
+   contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu>
+        A C++ I/O streams interface to the zlib gz* functions
+   contrib/iostream2/  by Tyge Løvset <Tyge.Lovset@cmr.no>
+        Another C++ I/O streams interface
+   contrib/untgz/  by "Pedro A. Aranda Guti\irrez" <paag@tid.es>
+        A very simple tar.gz file extractor using zlib
+   contrib/visual-basic.txt by Carlos Rios <c_rios@sonda.cl>
+        How to use compress(), uncompress() and the gz* functions from VB
+- pass params -f (filtered data), -h (huffman only), -1 to -9 (compression
+  level) in minigzip (thanks to Tom Lane)
+
+- use const for rommable constants in deflate
+- added test for gzseek and gztell in example.c
+- add undocumented function inflateSyncPoint() (hack for Paul Mackerras)
+- add undocumented function zError to convert error code to string
+  (for Tim Smithers)
+- Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code
+- Use default memcpy for Symantec MSDOS compiler
+- Add EXPORT keyword for check_func (needed for Windows DLL)
+- add current directory to LD_LIBRARY_PATH for "make test"
+- create also a link for libz.so.1
+- added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura)
+- use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX)
+- added -soname for Linux in configure (Chun-Chung Chen,
+- assign numbers to the exported functions in zlib.def (for Windows DLL)
+- add advice in zlib.h for best usage of deflateSetDictionary
+- work around compiler bug on Atari (cast Z_NULL in call of s->checkfn)
+- allow compilation with ANSI keywords only enabled for TurboC in large model
+- avoid "versionString"[0] (Borland bug)
+- add NEED_DUMMY_RETURN for Borland
+- use variable z_verbose for tracing in debug mode (L. Peter Deutsch)
+- allow compilation with CC
+- defined STDC for OS/2 (David Charlap)
+- limit external names to 8 chars for MVS (Thomas Lund)
+- in minigzip.c, use static buffers only for 16-bit systems
+- fix suffix check for "minigzip -d foo.gz"
+- do not return an error for the 2nd of two consecutive gzflush() (Felix Lee)
+- use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau)
+- added makelcc.bat for lcc-win32 (Tom St Denis)
+- in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe)
+- Avoid expanded $Id$. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion
+- check for unistd.h in configure (for off_t)
+- remove useless check parameter in inflate_blocks_free
+- avoid useless assignment of s->check to itself in inflate_blocks_new
+- do not flush twice in gzclose (thanks to Ken Raeburn)
+- rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h
+- use NO_ERRNO_H instead of enumeration of operating systems with errno.h
+- work around buggy fclose on pipes for HP/UX
+- support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson)
+- fix configure if CC is already equal to gcc
+
+Changes in 1.0.5 (3 Jan 98)
+- Fix inflate to terminate gracefully when fed corrupted or invalid data
+- Use const for rommable constants in inflate
+- Eliminate memory leaks on error conditions in inflate
+- Removed some vestigial code in inflate
+- Update web address in README
+
+Changes in 1.0.4 (24 Jul 96)
+- In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF
+  bit, so the decompressor could decompress all the correct data but went
+  on to attempt decompressing extra garbage data. This affected minigzip too
+- zlibVersion and gzerror return const char* (needed for DLL)
+- port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno)
+- use z_error only for DEBUG (avoid problem with DLLs)
+
+Changes in 1.0.3 (2 Jul 96)
+- use z_streamp instead of z_stream *, which is now a far pointer in MSDOS
+  small and medium models; this makes the library incompatible with previous
+  versions for these models. (No effect in large model or on other systems.)
+- return OK instead of BUF_ERROR if previous deflate call returned with
+  avail_out as zero but there is nothing to do
+- added memcmp for non STDC compilers
+- define NO_DUMMY_DECL for more Mac compilers (.h files merged incorrectly)
+- define __32BIT__ if __386__ or i386 is defined (pb. with Watcom and SCO)
+- better check for 16-bit mode MSC (avoids problem with Symantec)
+
+Changes in 1.0.2 (23 May 96)
+- added Windows DLL support
+- added a function zlibVersion (for the DLL support)
+- fixed declarations using Bytef in infutil.c (pb with MSDOS medium model)
+- Bytef is define's instead of typedef'd only for Borland C
+- avoid reading uninitialized memory in example.c
+- mention in README that the zlib format is now RFC1950
+- updated Makefile.dj2
+- added algorithm.doc
+
+Changes in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion]
+- fix array overlay in deflate.c which sometimes caused bad compressed data
+- fix inflate bug with empty stored block
+- fix MSDOS medium model which was broken in 0.99
+- fix deflateParams() which could generate bad compressed data
+- Bytef is define'd instead of typedef'ed (work around Borland bug)
+- added an INDEX file
+- new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32),
+  Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas)
+- speed up adler32 for modern machines without auto-increment
+- added -ansi for IRIX in configure
+- static_init_done in trees.c is an int
+- define unlink as delete for VMS
+- fix configure for QNX
+- add configure branch for SCO and HPUX
+- avoid many warnings (unused variables, dead assignments, etc...)
+- no fdopen for BeOS
+- fix the Watcom fix for 32 bit mode (define FAR as empty)
+- removed redefinition of Byte for MKWERKS
+- work around an MWKERKS bug (incorrect merge of all .h files)
+
+Changes in 0.99 (27 Jan 96)
+- allow preset dictionary shared between compressor and decompressor
+- allow compression level 0 (no compression)
+- add deflateParams in zlib.h: allow dynamic change of compression level
+  and compression strategy
+- test large buffers and deflateParams in example.c
+- add optional "configure" to build zlib as a shared library
+- suppress Makefile.qnx, use configure instead
+- fixed deflate for 64-bit systems (detected on Cray)
+- fixed inflate_blocks for 64-bit systems (detected on Alpha)
+- declare Z_DEFLATED in zlib.h (possible parameter for deflateInit2)
+- always return Z_BUF_ERROR when deflate() has nothing to do
+- deflateInit and inflateInit are now macros to allow version checking
+- prefix all global functions and types with z_ with -DZ_PREFIX
+- make falloc completely reentrant (inftrees.c)
+- fixed very unlikely race condition in ct_static_init
+- free in reverse order of allocation to help memory manager
+- use zlib-1.0/* instead of zlib/* inside the tar.gz
+- make zlib warning-free with "gcc -O3 -Wall -Wwrite-strings -Wpointer-arith
+  -Wconversion -Wstrict-prototypes -Wmissing-prototypes"
+- allow gzread on concatenated .gz files
+- deflateEnd now returns Z_DATA_ERROR if it was premature
+- deflate is finally (?) fully deterministic (no matches beyond end of input)
+- Document Z_SYNC_FLUSH
+- add uninstall in Makefile
+- Check for __cpluplus in zlib.h
+- Better test in ct_align for partial flush
+- avoid harmless warnings for Borland C++
+- initialize hash_head in deflate.c
+- avoid warning on fdopen (gzio.c) for HP cc -Aa
+- include stdlib.h for STDC compilers
+- include errno.h for Cray
+- ignore error if ranlib doesn't exist
+- call ranlib twice for NeXTSTEP
+- use exec_prefix instead of prefix for libz.a
+- renamed ct_* as _tr_* to avoid conflict with applications
+- clear z->msg in inflateInit2 before any error return
+- initialize opaque in example.c, gzio.c, deflate.c and inflate.c
+- fixed typo in zconf.h (_GNUC__ => __GNUC__)
+- check for WIN32 in zconf.h and zutil.c (avoid farmalloc in 32-bit mode)
+- fix typo in Make_vms.com (f$trnlnm -> f$getsyi)
+- in fcalloc, normalize pointer if size > 65520 bytes
+- don't use special fcalloc for 32 bit Borland C++
+- use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc.
+- use Z_BINARY instead of BINARY
+- document that gzclose after gzdopen will close the file
+- allow "a" as mode in gzopen
+- fix error checking in gzread
+- allow skipping .gz extra-field on pipes
+- added reference to Perl interface in README
+- put the crc table in FAR data (I dislike more and more the medium model :)
+- added get_crc_table
+- added a dimension to all arrays (Borland C can't count)
+- workaround Borland C bug in declaration of inflate_codes_new & inflate_fast
+- guard against multiple inclusion of *.h (for precompiled header on Mac)
+- Watcom C pretends to be Microsoft C small model even in 32 bit mode
+- don't use unsized arrays to avoid silly warnings by Visual C++:
+     warning C4746: 'inflate_mask' : unsized array treated as  '__far'
+     (what's wrong with far data in far model?)
+- define enum out of inflate_blocks_state to allow compilation with C++
+
+Changes in 0.95 (16 Aug 95)
+- fix MSDOS small and medium model (now easier to adapt to any compiler)
+- inlined send_bits
+- fix the final (:-) bug for deflate with flush (output was correct but
+  not completely flushed in rare occasions)
+- default window size is same for compression and decompression
+  (it's now sufficient to set MAX_WBITS in zconf.h)
+- voidp -> voidpf and voidnp -> voidp (for consistency with other
+  typedefs and because voidnp was not near in large model)
+
+Changes in 0.94 (13 Aug 95)
+- support MSDOS medium model
+- fix deflate with flush (could sometimes generate bad output)
+- fix deflateReset (zlib header was incorrectly suppressed)
+- added support for VMS
+- allow a compression level in gzopen()
+- gzflush now calls fflush
+- For deflate with flush, flush even if no more input is provided
+- rename libgz.a as libz.a
+- avoid complex expression in infcodes.c triggering Turbo C bug
+- work around a problem with gcc on Alpha (in INSERT_STRING)
+- don't use inline functions (problem with some gcc versions)
+- allow renaming of Byte, uInt, etc... with #define
+- avoid warning about (unused) pointer before start of array in deflate.c
+- avoid various warnings in gzio.c, example.c, infblock.c, adler32.c, zutil.c
+- avoid reserved word 'new' in trees.c
+
+Changes in 0.93 (25 June 95)
+- temporarily disable inline functions
+- make deflate deterministic
+- give enough lookahead for PARTIAL_FLUSH
+- Set binary mode for stdin/stdout in minigzip.c for OS/2
+- don't even use signed char in inflate (not portable enough)
+- fix inflate memory leak for segmented architectures
+
+Changes in 0.92 (3 May 95)
+- don't assume that char is signed (problem on SGI)
+- Clear bit buffer when starting a stored block
+- no memcpy on Pyramid
+- suppressed inftest.c
+- optimized fill_window, put longest_match inline for gcc
+- optimized inflate on stored blocks
+- untabify all sources to simplify patches
+
+Changes in 0.91 (2 May 95)
+- Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h
+- Document the memory requirements in zconf.h
+- added "make install"
+- fix sync search logic in inflateSync
+- deflate(Z_FULL_FLUSH) now works even if output buffer too short
+- after inflateSync, don't scare people with just "lo world"
+- added support for DJGPP
+
+Changes in 0.9 (1 May 95)
+- don't assume that zalloc clears the allocated memory (the TurboC bug
+  was Mark's bug after all :)
+- let again gzread copy uncompressed data unchanged (was working in 0.71)
+- deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented
+- added a test of inflateSync in example.c
+- moved MAX_WBITS to zconf.h because users might want to change that
+- document explicitly that zalloc(64K) on MSDOS must return a normalized
+  pointer (zero offset)
+- added Makefiles for Microsoft C, Turbo C, Borland C++
+- faster crc32()
+
+Changes in 0.8 (29 April 95)
+- added fast inflate (inffast.c)
+- deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this
+  is incompatible with previous versions of zlib which returned Z_OK
+- work around a TurboC compiler bug (bad code for b << 0, see infutil.h)
+  (actually that was not a compiler bug, see 0.81 above)
+- gzread no longer reads one extra byte in certain cases
+- In gzio destroy(), don't reference a freed structure
+- avoid many warnings for MSDOS
+- avoid the ERROR symbol which is used by MS Windows
+
+Changes in 0.71 (14 April 95)
+- Fixed more MSDOS compilation problems :( There is still a bug with
+  TurboC large model
+
+Changes in 0.7 (14 April 95)
+- Added full inflate support
+- Simplified the crc32() interface. The pre- and post-conditioning
+  (one's complement) is now done inside crc32(). WARNING: this is
+  incompatible with previous versions; see zlib.h for the new usage
+
+Changes in 0.61 (12 April 95)
+- workaround for a bug in TurboC. example and minigzip now work on MSDOS
+
+Changes in 0.6 (11 April 95)
+- added minigzip.c
+- added gzdopen to reopen a file descriptor as gzFile
+- added transparent reading of non-gziped files in gzread
+- fixed bug in gzread (don't read crc as data)
+- fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose)
+- don't allocate big arrays in the stack (for MSDOS)
+- fix some MSDOS compilation problems
+
+Changes in 0.5:
+- do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but
+  not yet Z_FULL_FLUSH
+- support decompression but only in a single step (forced Z_FINISH)
+- added opaque object for zalloc and zfree
+- added deflateReset and inflateReset
+- added a variable zlib_version for consistency checking
+- renamed the 'filter' parameter of deflateInit2 as 'strategy'
+  Added Z_FILTERED and Z_HUFFMAN_ONLY constants
+
+Changes in 0.4:
+- avoid "zip" everywhere, use zlib instead of ziplib
+- suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush
+  if compression method == 8
+- added adler32 and crc32
+- renamed deflateOptions as deflateInit2, call one or the other but not both
+- added the method parameter for deflateInit2
+- added inflateInit2
+- simplified considerably deflateInit and inflateInit by not supporting
+  user-provided history buffer. This is supported only in deflateInit2
+  and inflateInit2
+
+Changes in 0.3:
+- prefix all macro names with Z_
+- use Z_FINISH instead of deflateEnd to finish compression
+- added Z_HUFFMAN_ONLY
+- added gzerror()
diff --git a/compat/zlib/FAQ b/compat/zlib/FAQ
new file mode 100644
index 0000000..92f5d3e
--- /dev/null
+++ b/compat/zlib/FAQ
@@ -0,0 +1,367 @@
+
+                Frequently Asked Questions about zlib
+
+
+If your question is not there, please check the zlib home page
+http://zlib.net/ which may have more recent information.
+The latest zlib FAQ is at http://zlib.net/zlib_faq.html
+
+
+ 1. Is zlib Y2K-compliant?
+
+    Yes. zlib doesn't handle dates.
+
+ 2. Where can I get a Windows DLL version?
+
+    The zlib sources can be compiled without change to produce a DLL.  See the
+    file win32/DLL_FAQ.txt in the zlib distribution.
+
+ 3. Where can I get a Visual Basic interface to zlib?
+
+    See
+        * http://marknelson.us/1997/01/01/zlib-engine/
+        * win32/DLL_FAQ.txt in the zlib distribution
+
+ 4. compress() returns Z_BUF_ERROR.
+
+    Make sure that before the call of compress(), the length of the compressed
+    buffer is equal to the available size of the compressed buffer and not
+    zero.  For Visual Basic, check that this parameter is passed by reference
+    ("as any"), not by value ("as long").
+
+ 5. deflate() or inflate() returns Z_BUF_ERROR.
+
+    Before making the call, make sure that avail_in and avail_out are not zero.
+    When setting the parameter flush equal to Z_FINISH, also make sure that
+    avail_out is big enough to allow processing all pending input.  Note that a
+    Z_BUF_ERROR is not fatal--another call to deflate() or inflate() can be
+    made with more input or output space.  A Z_BUF_ERROR may in fact be
+    unavoidable depending on how the functions are used, since it is not
+    possible to tell whether or not there is more output pending when
+    strm.avail_out returns with zero.  See http://zlib.net/zlib_how.html for a
+    heavily annotated example.
+
+ 6. Where's the zlib documentation (man pages, etc.)?
+
+    It's in zlib.h .  Examples of zlib usage are in the files test/example.c
+    and test/minigzip.c, with more in examples/ .
+
+ 7. Why don't you use GNU autoconf or libtool or ...?
+
+    Because we would like to keep zlib as a very small and simple package.
+    zlib is rather portable and doesn't need much configuration.
+
+ 8. I found a bug in zlib.
+
+    Most of the time, such problems are due to an incorrect usage of zlib.
+    Please try to reproduce the problem with a small program and send the
+    corresponding source to us at zlib@gzip.org .  Do not send multi-megabyte
+    data files without prior agreement.
+
+ 9. Why do I get "undefined reference to gzputc"?
+
+    If "make test" produces something like
+
+       example.o(.text+0x154): undefined reference to `gzputc'
+
+    check that you don't have old files libz.* in /usr/lib, /usr/local/lib or
+    /usr/X11R6/lib. Remove any old versions, then do "make install".
+
+10. I need a Delphi interface to zlib.
+
+    See the contrib/delphi directory in the zlib distribution.
+
+11. Can zlib handle .zip archives?
+
+    Not by itself, no.  See the directory contrib/minizip in the zlib
+    distribution.
+
+12. Can zlib handle .Z files?
+
+    No, sorry.  You have to spawn an uncompress or gunzip subprocess, or adapt
+    the code of uncompress on your own.
+
+13. How can I make a Unix shared library?
+
+    By default a shared (and a static) library is built for Unix.  So:
+
+    make distclean
+    ./configure
+    make
+
+14. How do I install a shared zlib library on Unix?
+
+    After the above, then:
+
+    make install
+
+    However, many flavors of Unix come with a shared zlib already installed.
+    Before going to the trouble of compiling a shared version of zlib and
+    trying to install it, you may want to check if it's already there!  If you
+    can #include <zlib.h>, it's there.  The -lz option will probably link to
+    it.  You can check the version at the top of zlib.h or with the
+    ZLIB_VERSION symbol defined in zlib.h .
+
+15. I have a question about OttoPDF.
+
+    We are not the authors of OttoPDF. The real author is on the OttoPDF web
+    site: Joel Hainley, jhainley@myndkryme.com.
+
+16. Can zlib decode Flate data in an Adobe PDF file?
+
+    Yes. See http://www.pdflib.com/ . To modify PDF forms, see
+    http://sourceforge.net/projects/acroformtool/ .
+
+17. Why am I getting this "register_frame_info not found" error on Solaris?
+
+    After installing zlib 1.1.4 on Solaris 2.6, running applications using zlib
+    generates an error such as:
+
+        ld.so.1: rpm: fatal: relocation error: file /usr/local/lib/libz.so:
+        symbol __register_frame_info: referenced symbol not found
+
+    The symbol __register_frame_info is not part of zlib, it is generated by
+    the C compiler (cc or gcc).  You must recompile applications using zlib
+    which have this problem.  This problem is specific to Solaris.  See
+    http://www.sunfreeware.com for Solaris versions of zlib and applications
+    using zlib.
+
+18. Why does gzip give an error on a file I make with compress/deflate?
+
+    The compress and deflate functions produce data in the zlib format, which
+    is different and incompatible with the gzip format.  The gz* functions in
+    zlib on the other hand use the gzip format.  Both the zlib and gzip formats
+    use the same compressed data format internally, but have different headers
+    and trailers around the compressed data.
+
+19. Ok, so why are there two different formats?
+
+    The gzip format was designed to retain the directory information about a
+    single file, such as the name and last modification date.  The zlib format
+    on the other hand was designed for in-memory and communication channel
+    applications, and has a much more compact header and trailer and uses a
+    faster integrity check than gzip.
+
+20. Well that's nice, but how do I make a gzip file in memory?
+
+    You can request that deflate write the gzip format instead of the zlib
+    format using deflateInit2().  You can also request that inflate decode the
+    gzip format using inflateInit2().  Read zlib.h for more details.
+
+21. Is zlib thread-safe?
+
+    Yes.  However any library routines that zlib uses and any application-
+    provided memory allocation routines must also be thread-safe.  zlib's gz*
+    functions use stdio library routines, and most of zlib's functions use the
+    library memory allocation routines by default.  zlib's *Init* functions
+    allow for the application to provide custom memory allocation routines.
+
+    Of course, you should only operate on any given zlib or gzip stream from a
+    single thread at a time.
+
+22. Can I use zlib in my commercial application?
+
+    Yes.  Please read the license in zlib.h.
+
+23. Is zlib under the GNU license?
+
+    No.  Please read the license in zlib.h.
+
+24. The license says that altered source versions must be "plainly marked". So
+    what exactly do I need to do to meet that requirement?
+
+    You need to change the ZLIB_VERSION and ZLIB_VERNUM #defines in zlib.h.  In
+    particular, the final version number needs to be changed to "f", and an
+    identification string should be appended to ZLIB_VERSION.  Version numbers
+    x.x.x.f are reserved for modifications to zlib by others than the zlib
+    maintainers.  For example, if the version of the base zlib you are altering
+    is "1.2.3.4", then in zlib.h you should change ZLIB_VERNUM to 0x123f, and
+    ZLIB_VERSION to something like "1.2.3.f-zachary-mods-v3".  You can also
+    update the version strings in deflate.c and inftrees.c.
+
+    For altered source distributions, you should also note the origin and
+    nature of the changes in zlib.h, as well as in ChangeLog and README, along
+    with the dates of the alterations.  The origin should include at least your
+    name (or your company's name), and an email address to contact for help or
+    issues with the library.
+
+    Note that distributing a compiled zlib library along with zlib.h and
+    zconf.h is also a source distribution, and so you should change
+    ZLIB_VERSION and ZLIB_VERNUM and note the origin and nature of the changes
+    in zlib.h as you would for a full source distribution.
+
+25. Will zlib work on a big-endian or little-endian architecture, and can I
+    exchange compressed data between them?
+
+    Yes and yes.
+
+26. Will zlib work on a 64-bit machine?
+
+    Yes.  It has been tested on 64-bit machines, and has no dependence on any
+    data types being limited to 32-bits in length.  If you have any
+    difficulties, please provide a complete problem report to zlib@gzip.org
+
+27. Will zlib decompress data from the PKWare Data Compression Library?
+
+    No.  The PKWare DCL uses a completely different compressed data format than
+    does PKZIP and zlib.  However, you can look in zlib's contrib/blast
+    directory for a possible solution to your problem.
+
+28. Can I access data randomly in a compressed stream?
+
+    No, not without some preparation.  If when compressing you periodically use
+    Z_FULL_FLUSH, carefully write all the pending data at those points, and
+    keep an index of those locations, then you can start decompression at those
+    points.  You have to be careful to not use Z_FULL_FLUSH too often, since it
+    can significantly degrade compression.  Alternatively, you can scan a
+    deflate stream once to generate an index, and then use that index for
+    random access.  See examples/zran.c .
+
+29. Does zlib work on MVS, OS/390, CICS, etc.?
+
+    It has in the past, but we have not heard of any recent evidence.  There
+    were working ports of zlib 1.1.4 to MVS, but those links no longer work.
+    If you know of recent, successful applications of zlib on these operating
+    systems, please let us know.  Thanks.
+
+30. Is there some simpler, easier to read version of inflate I can look at to
+    understand the deflate format?
+
+    First off, you should read RFC 1951.  Second, yes.  Look in zlib's
+    contrib/puff directory.
+
+31. Does zlib infringe on any patents?
+
+    As far as we know, no.  In fact, that was originally the whole point behind
+    zlib.  Look here for some more information:
+
+    http://www.gzip.org/#faq11
+
+32. Can zlib work with greater than 4 GB of data?
+
+    Yes.  inflate() and deflate() will process any amount of data correctly.
+    Each call of inflate() or deflate() is limited to input and output chunks
+    of the maximum value that can be stored in the compiler's "unsigned int"
+    type, but there is no limit to the number of chunks.  Note however that the
+    strm.total_in and strm_total_out counters may be limited to 4 GB.  These
+    counters are provided as a convenience and are not used internally by
+    inflate() or deflate().  The application can easily set up its own counters
+    updated after each call of inflate() or deflate() to count beyond 4 GB.
+    compress() and uncompress() may be limited to 4 GB, since they operate in a
+    single call.  gzseek() and gztell() may be limited to 4 GB depending on how
+    zlib is compiled.  See the zlibCompileFlags() function in zlib.h.
+
+    The word "may" appears several times above since there is a 4 GB limit only
+    if the compiler's "long" type is 32 bits.  If the compiler's "long" type is
+    64 bits, then the limit is 16 exabytes.
+
+33. Does zlib have any security vulnerabilities?
+
+    The only one that we are aware of is potentially in gzprintf().  If zlib is
+    compiled to use sprintf() or vsprintf(), then there is no protection
+    against a buffer overflow of an 8K string space (or other value as set by
+    gzbuffer()), other than the caller of gzprintf() assuring that the output
+    will not exceed 8K.  On the other hand, if zlib is compiled to use
+    snprintf() or vsnprintf(), which should normally be the case, then there is
+    no vulnerability.  The ./configure script will display warnings if an
+    insecure variation of sprintf() will be used by gzprintf().  Also the
+    zlibCompileFlags() function will return information on what variant of
+    sprintf() is used by gzprintf().
+
+    If you don't have snprintf() or vsnprintf() and would like one, you can
+    find a portable implementation here:
+
+        http://www.ijs.si/software/snprintf/
+
+    Note that you should be using the most recent version of zlib.  Versions
+    1.1.3 and before were subject to a double-free vulnerability, and versions
+    1.2.1 and 1.2.2 were subject to an access exception when decompressing
+    invalid compressed data.
+
+34. Is there a Java version of zlib?
+
+    Probably what you want is to use zlib in Java. zlib is already included
+    as part of the Java SDK in the java.util.zip package. If you really want
+    a version of zlib written in the Java language, look on the zlib home
+    page for links: http://zlib.net/ .
+
+35. I get this or that compiler or source-code scanner warning when I crank it
+    up to maximally-pedantic. Can't you guys write proper code?
+
+    Many years ago, we gave up attempting to avoid warnings on every compiler
+    in the universe.  It just got to be a waste of time, and some compilers
+    were downright silly as well as contradicted each other.  So now, we simply
+    make sure that the code always works.
+
+36. Valgrind (or some similar memory access checker) says that deflate is
+    performing a conditional jump that depends on an uninitialized value.
+    Isn't that a bug?
+
+    No.  That is intentional for performance reasons, and the output of deflate
+    is not affected.  This only started showing up recently since zlib 1.2.x
+    uses malloc() by default for allocations, whereas earlier versions used
+    calloc(), which zeros out the allocated memory.  Even though the code was
+    correct, versions 1.2.4 and later was changed to not stimulate these
+    checkers.
+
+37. Will zlib read the (insert any ancient or arcane format here) compressed
+    data format?
+
+    Probably not. Look in the comp.compression FAQ for pointers to various
+    formats and associated software.
+
+38. How can I encrypt/decrypt zip files with zlib?
+
+    zlib doesn't support encryption.  The original PKZIP encryption is very
+    weak and can be broken with freely available programs.  To get strong
+    encryption, use GnuPG, http://www.gnupg.org/ , which already includes zlib
+    compression.  For PKZIP compatible "encryption", look at
+    http://www.info-zip.org/
+
+39. What's the difference between the "gzip" and "deflate" HTTP 1.1 encodings?
+
+    "gzip" is the gzip format, and "deflate" is the zlib format.  They should
+    probably have called the second one "zlib" instead to avoid confusion with
+    the raw deflate compressed data format.  While the HTTP 1.1 RFC 2616
+    correctly points to the zlib specification in RFC 1950 for the "deflate"
+    transfer encoding, there have been reports of servers and browsers that
+    incorrectly produce or expect raw deflate data per the deflate
+    specification in RFC 1951, most notably Microsoft.  So even though the
+    "deflate" transfer encoding using the zlib format would be the more
+    efficient approach (and in fact exactly what the zlib format was designed
+    for), using the "gzip" transfer encoding is probably more reliable due to
+    an unfortunate choice of name on the part of the HTTP 1.1 authors.
+
+    Bottom line: use the gzip format for HTTP 1.1 encoding.
+
+40. Does zlib support the new "Deflate64" format introduced by PKWare?
+
+    No.  PKWare has apparently decided to keep that format proprietary, since
+    they have not documented it as they have previous compression formats.  In
+    any case, the compression improvements are so modest compared to other more
+    modern approaches, that it's not worth the effort to implement.
+
+41. I'm having a problem with the zip functions in zlib, can you help?
+
+    There are no zip functions in zlib.  You are probably using minizip by
+    Giles Vollant, which is found in the contrib directory of zlib.  It is not
+    part of zlib.  In fact none of the stuff in contrib is part of zlib.  The
+    files in there are not supported by the zlib authors.  You need to contact
+    the authors of the respective contribution for help.
+
+42. The match.asm code in contrib is under the GNU General Public License.
+    Since it's part of zlib, doesn't that mean that all of zlib falls under the
+    GNU GPL?
+
+    No.  The files in contrib are not part of zlib.  They were contributed by
+    other authors and are provided as a convenience to the user within the zlib
+    distribution.  Each item in contrib has its own license.
+
+43. Is zlib subject to export controls?  What is its ECCN?
+
+    zlib is not subject to export controls, and so is classified as EAR99.
+
+44. Can you please sign these lengthy legal documents and fax them back to us
+    so that we can use your software in our product?
+
+    No. Go away. Shoo.
diff --git a/compat/zlib/INDEX b/compat/zlib/INDEX
new file mode 100644
index 0000000..2ba0641
--- /dev/null
+++ b/compat/zlib/INDEX
@@ -0,0 +1,68 @@
+CMakeLists.txt  cmake build file
+ChangeLog       history of changes
+FAQ             Frequently Asked Questions about zlib
+INDEX           this file
+Makefile        dummy Makefile that tells you to ./configure
+Makefile.in     template for Unix Makefile
+README          guess what
+configure       configure script for Unix
+make_vms.com    makefile for VMS
+test/example.c  zlib usages examples for build testing
+test/minigzip.c minimal gzip-like functionality for build testing
+test/infcover.c inf*.c code coverage for build coverage testing
+treebuild.xml   XML description of source file dependencies
+zconf.h.cmakein zconf.h template for cmake
+zconf.h.in      zconf.h template for configure
+zlib.3          Man page for zlib
+zlib.3.pdf      Man page in PDF format
+zlib.map        Linux symbol information
+zlib.pc.in      Template for pkg-config descriptor
+zlib.pc.cmakein zlib.pc template for cmake
+zlib2ansi       perl script to convert source files for C++ compilation
+
+amiga/          makefiles for Amiga SAS C
+as400/          makefiles for AS/400
+doc/            documentation for formats and algorithms
+msdos/          makefiles for MSDOS
+nintendods/     makefile for Nintendo DS
+old/            makefiles for various architectures and zlib documentation
+                files that have not yet been updated for zlib 1.2.x
+qnx/            makefiles for QNX
+watcom/         makefiles for OpenWatcom
+win32/          makefiles for Windows
+
+                zlib public header files (required for library use):
+zconf.h
+zlib.h
+
+                private source files used to build the zlib library:
+adler32.c
+compress.c
+crc32.c
+crc32.h
+deflate.c
+deflate.h
+gzclose.c
+gzguts.h
+gzlib.c
+gzread.c
+gzwrite.c
+infback.c
+inffast.c
+inffast.h
+inffixed.h
+inflate.c
+inflate.h
+inftrees.c
+inftrees.h
+trees.c
+trees.h
+uncompr.c
+zutil.c
+zutil.h
+
+                source files for sample programs
+See examples/README.examples
+
+                unsupported contributions by third parties
+See contrib/README.contrib
diff --git a/compat/zlib/LICENSE b/compat/zlib/LICENSE
new file mode 100644
index 0000000..ab8ee6f
--- /dev/null
+++ b/compat/zlib/LICENSE
@@ -0,0 +1,22 @@
+Copyright notice:
+
+ (C) 1995-2022 Jean-loup Gailly and Mark Adler
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Jean-loup Gailly        Mark Adler
+  jloup@gzip.org          madler@alumni.caltech.edu
diff --git a/compat/zlib/Makefile b/compat/zlib/Makefile
new file mode 100644
index 0000000..6bba86c
--- /dev/null
+++ b/compat/zlib/Makefile
@@ -0,0 +1,5 @@
+all:
+	-@echo "Please use ./configure first.  Thank you."
+
+distclean:
+	make -f Makefile.in distclean
diff --git a/compat/zlib/Makefile.in b/compat/zlib/Makefile.in
new file mode 100644
index 0000000..cb8b00a
--- /dev/null
+++ b/compat/zlib/Makefile.in
@@ -0,0 +1,410 @@
+# Makefile for zlib
+# Copyright (C) 1995-2024 Jean-loup Gailly, Mark Adler
+# For conditions of distribution and use, see copyright notice in zlib.h
+
+# To compile and test, type:
+#    ./configure; make test
+# Normally configure builds both a static and a shared library.
+# If you want to build just a static library, use: ./configure --static
+
+# To install /usr/local/lib/libz.* and /usr/local/include/zlib.h, type:
+#    make install
+# To install in $HOME instead of /usr/local, use:
+#    make install prefix=$HOME
+
+CC=cc
+
+CFLAGS=-O
+#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
+#CFLAGS=-g -DZLIB_DEBUG
+#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
+#           -Wstrict-prototypes -Wmissing-prototypes
+
+SFLAGS=-O
+LDFLAGS=
+TEST_LIBS=-L. libz.a
+LDSHARED=$(CC)
+CPP=$(CC) -E
+
+STATICLIB=libz.a
+SHAREDLIB=libz.so
+SHAREDLIBV=libz.so.1.3.1
+SHAREDLIBM=libz.so.1
+LIBS=$(STATICLIB) $(SHAREDLIBV)
+
+AR=ar
+ARFLAGS=rc
+RANLIB=ranlib
+LDCONFIG=ldconfig
+LDSHAREDLIBC=-lc
+TAR=tar
+SHELL=/bin/sh
+EXE=
+
+prefix = /usr/local
+exec_prefix = ${prefix}
+libdir = ${exec_prefix}/lib
+sharedlibdir = ${libdir}
+includedir = ${prefix}/include
+mandir = ${prefix}/share/man
+man3dir = ${mandir}/man3
+pkgconfigdir = ${libdir}/pkgconfig
+SRCDIR=
+ZINC=
+ZINCOUT=-I.
+
+OBJZ = adler32.o crc32.o deflate.o infback.o inffast.o inflate.o inftrees.o trees.o zutil.o
+OBJG = compress.o uncompr.o gzclose.o gzlib.o gzread.o gzwrite.o
+OBJC = $(OBJZ) $(OBJG)
+
+PIC_OBJZ = adler32.lo crc32.lo deflate.lo infback.lo inffast.lo inflate.lo inftrees.lo trees.lo zutil.lo
+PIC_OBJG = compress.lo uncompr.lo gzclose.lo gzlib.lo gzread.lo gzwrite.lo
+PIC_OBJC = $(PIC_OBJZ) $(PIC_OBJG)
+
+# to use the asm code: make OBJA=match.o, PIC_OBJA=match.lo
+OBJA =
+PIC_OBJA =
+
+OBJS = $(OBJC) $(OBJA)
+
+PIC_OBJS = $(PIC_OBJC) $(PIC_OBJA)
+
+all: static shared
+
+static: example$(EXE) minigzip$(EXE)
+
+shared: examplesh$(EXE) minigzipsh$(EXE)
+
+all64: example64$(EXE) minigzip64$(EXE)
+
+check: test
+
+test: all teststatic testshared
+
+teststatic: static
+	@TMPST=tmpst_$$; \
+	if echo hello world | ${QEMU_RUN} ./minigzip | ${QEMU_RUN} ./minigzip -d && ${QEMU_RUN} ./example $$TMPST ; then \
+	  echo '		*** zlib test OK ***'; \
+	else \
+	  echo '		*** zlib test FAILED ***'; false; \
+	fi
+	@rm -f tmpst_$$
+
+testshared: shared
+	@LD_LIBRARY_PATH=`pwd`:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \
+	LD_LIBRARYN32_PATH=`pwd`:$(LD_LIBRARYN32_PATH) ; export LD_LIBRARYN32_PATH; \
+	DYLD_LIBRARY_PATH=`pwd`:$(DYLD_LIBRARY_PATH) ; export DYLD_LIBRARY_PATH; \
+	SHLIB_PATH=`pwd`:$(SHLIB_PATH) ; export SHLIB_PATH; \
+	TMPSH=tmpsh_$$; \
+	if echo hello world | ${QEMU_RUN} ./minigzipsh | ${QEMU_RUN} ./minigzipsh -d && ${QEMU_RUN} ./examplesh $$TMPSH; then \
+	  echo '		*** zlib shared test OK ***'; \
+	else \
+	  echo '		*** zlib shared test FAILED ***'; false; \
+	fi
+	@rm -f tmpsh_$$
+
+test64: all64
+	@TMP64=tmp64_$$; \
+	if echo hello world | ${QEMU_RUN} ./minigzip64 | ${QEMU_RUN} ./minigzip64 -d && ${QEMU_RUN} ./example64 $$TMP64; then \
+	  echo '		*** zlib 64-bit test OK ***'; \
+	else \
+	  echo '		*** zlib 64-bit test FAILED ***'; false; \
+	fi
+	@rm -f tmp64_$$
+
+infcover.o: $(SRCDIR)test/infcover.c $(SRCDIR)zlib.h zconf.h
+	$(CC) $(CFLAGS) $(ZINCOUT) -c -o $@ $(SRCDIR)test/infcover.c
+
+infcover: infcover.o libz.a
+	$(CC) $(CFLAGS) -o $@ infcover.o libz.a
+
+cover: infcover
+	rm -f *.gcda
+	${QEMU_RUN} ./infcover
+	gcov inf*.c
+
+libz.a: $(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+	-@ ($(RANLIB) $@ || true) >/dev/null 2>&1
+
+match.o: match.S
+	$(CPP) match.S > _match.s
+	$(CC) -c _match.s
+	mv _match.o match.o
+	rm -f _match.s
+
+match.lo: match.S
+	$(CPP) match.S > _match.s
+	$(CC) -c -fPIC _match.s
+	mv _match.o match.lo
+	rm -f _match.s
+
+example.o: $(SRCDIR)test/example.c $(SRCDIR)zlib.h zconf.h
+	$(CC) $(CFLAGS) $(ZINCOUT) -c -o $@ $(SRCDIR)test/example.c
+
+minigzip.o: $(SRCDIR)test/minigzip.c $(SRCDIR)zlib.h zconf.h
+	$(CC) $(CFLAGS) $(ZINCOUT) -c -o $@ $(SRCDIR)test/minigzip.c
+
+example64.o: $(SRCDIR)test/example.c $(SRCDIR)zlib.h zconf.h
+	$(CC) $(CFLAGS) $(ZINCOUT) -D_FILE_OFFSET_BITS=64 -c -o $@ $(SRCDIR)test/example.c
+
+minigzip64.o: $(SRCDIR)test/minigzip.c $(SRCDIR)zlib.h zconf.h
+	$(CC) $(CFLAGS) $(ZINCOUT) -D_FILE_OFFSET_BITS=64 -c -o $@ $(SRCDIR)test/minigzip.c
+
+
+adler32.o: $(SRCDIR)adler32.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)adler32.c
+
+crc32.o: $(SRCDIR)crc32.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)crc32.c
+
+deflate.o: $(SRCDIR)deflate.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)deflate.c
+
+infback.o: $(SRCDIR)infback.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)infback.c
+
+inffast.o: $(SRCDIR)inffast.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)inffast.c
+
+inflate.o: $(SRCDIR)inflate.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)inflate.c
+
+inftrees.o: $(SRCDIR)inftrees.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)inftrees.c
+
+trees.o: $(SRCDIR)trees.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)trees.c
+
+zutil.o: $(SRCDIR)zutil.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)zutil.c
+
+compress.o: $(SRCDIR)compress.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)compress.c
+
+uncompr.o: $(SRCDIR)uncompr.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)uncompr.c
+
+gzclose.o: $(SRCDIR)gzclose.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)gzclose.c
+
+gzlib.o: $(SRCDIR)gzlib.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)gzlib.c
+
+gzread.o: $(SRCDIR)gzread.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)gzread.c
+
+gzwrite.o: $(SRCDIR)gzwrite.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)gzwrite.c
+
+
+adler32.lo: $(SRCDIR)adler32.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/adler32.o $(SRCDIR)adler32.c
+	-@mv objs/adler32.o $@
+
+crc32.lo: $(SRCDIR)crc32.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/crc32.o $(SRCDIR)crc32.c
+	-@mv objs/crc32.o $@
+
+deflate.lo: $(SRCDIR)deflate.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/deflate.o $(SRCDIR)deflate.c
+	-@mv objs/deflate.o $@
+
+infback.lo: $(SRCDIR)infback.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/infback.o $(SRCDIR)infback.c
+	-@mv objs/infback.o $@
+
+inffast.lo: $(SRCDIR)inffast.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/inffast.o $(SRCDIR)inffast.c
+	-@mv objs/inffast.o $@
+
+inflate.lo: $(SRCDIR)inflate.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/inflate.o $(SRCDIR)inflate.c
+	-@mv objs/inflate.o $@
+
+inftrees.lo: $(SRCDIR)inftrees.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/inftrees.o $(SRCDIR)inftrees.c
+	-@mv objs/inftrees.o $@
+
+trees.lo: $(SRCDIR)trees.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/trees.o $(SRCDIR)trees.c
+	-@mv objs/trees.o $@
+
+zutil.lo: $(SRCDIR)zutil.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/zutil.o $(SRCDIR)zutil.c
+	-@mv objs/zutil.o $@
+
+compress.lo: $(SRCDIR)compress.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/compress.o $(SRCDIR)compress.c
+	-@mv objs/compress.o $@
+
+uncompr.lo: $(SRCDIR)uncompr.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/uncompr.o $(SRCDIR)uncompr.c
+	-@mv objs/uncompr.o $@
+
+gzclose.lo: $(SRCDIR)gzclose.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/gzclose.o $(SRCDIR)gzclose.c
+	-@mv objs/gzclose.o $@
+
+gzlib.lo: $(SRCDIR)gzlib.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/gzlib.o $(SRCDIR)gzlib.c
+	-@mv objs/gzlib.o $@
+
+gzread.lo: $(SRCDIR)gzread.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/gzread.o $(SRCDIR)gzread.c
+	-@mv objs/gzread.o $@
+
+gzwrite.lo: $(SRCDIR)gzwrite.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/gzwrite.o $(SRCDIR)gzwrite.c
+	-@mv objs/gzwrite.o $@
+
+
+placebo $(SHAREDLIBV): $(PIC_OBJS) libz.a
+	$(LDSHARED) $(SFLAGS) -o $@ $(PIC_OBJS) $(LDSHAREDLIBC) $(LDFLAGS)
+	rm -f $(SHAREDLIB) $(SHAREDLIBM)
+	ln -s $@ $(SHAREDLIB)
+	ln -s $@ $(SHAREDLIBM)
+	-@rmdir objs
+
+example$(EXE): example.o $(STATICLIB)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ example.o $(TEST_LIBS)
+
+minigzip$(EXE): minigzip.o $(STATICLIB)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ minigzip.o $(TEST_LIBS)
+
+examplesh$(EXE): example.o $(SHAREDLIBV)
+	$(CC) $(CFLAGS) -o $@ example.o $(LDFLAGS) -L. $(SHAREDLIBV)
+
+minigzipsh$(EXE): minigzip.o $(SHAREDLIBV)
+	$(CC) $(CFLAGS) -o $@ minigzip.o $(LDFLAGS) -L. $(SHAREDLIBV)
+
+example64$(EXE): example64.o $(STATICLIB)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ example64.o $(TEST_LIBS)
+
+minigzip64$(EXE): minigzip64.o $(STATICLIB)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ minigzip64.o $(TEST_LIBS)
+
+install-libs: $(LIBS)
+	-@if [ ! -d $(DESTDIR)$(exec_prefix)  ]; then mkdir -p $(DESTDIR)$(exec_prefix); fi
+	-@if [ ! -d $(DESTDIR)$(libdir)       ]; then mkdir -p $(DESTDIR)$(libdir); fi
+	-@if [ ! -d $(DESTDIR)$(sharedlibdir) ]; then mkdir -p $(DESTDIR)$(sharedlibdir); fi
+	-@if [ ! -d $(DESTDIR)$(man3dir)      ]; then mkdir -p $(DESTDIR)$(man3dir); fi
+	-@if [ ! -d $(DESTDIR)$(pkgconfigdir) ]; then mkdir -p $(DESTDIR)$(pkgconfigdir); fi
+	rm -f $(DESTDIR)$(libdir)/$(STATICLIB)
+	cp $(STATICLIB) $(DESTDIR)$(libdir)
+	chmod 644 $(DESTDIR)$(libdir)/$(STATICLIB)
+	-@($(RANLIB) $(DESTDIR)$(libdir)/libz.a || true) >/dev/null 2>&1
+	-@if test -n "$(SHAREDLIBV)"; then \
+	  rm -f $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBV); \
+	  cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir); \
+	  echo "cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)"; \
+	  chmod 755 $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBV); \
+	  echo "chmod 755 $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBV)"; \
+	  rm -f $(DESTDIR)$(sharedlibdir)/$(SHAREDLIB) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBM); \
+	  ln -s $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIB); \
+	  ln -s $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBM); \
+	  ($(LDCONFIG) || true)  >/dev/null 2>&1; \
+	fi
+	rm -f $(DESTDIR)$(man3dir)/zlib.3
+	cp $(SRCDIR)zlib.3 $(DESTDIR)$(man3dir)
+	chmod 644 $(DESTDIR)$(man3dir)/zlib.3
+	rm -f $(DESTDIR)$(pkgconfigdir)/zlib.pc
+	cp zlib.pc $(DESTDIR)$(pkgconfigdir)
+	chmod 644 $(DESTDIR)$(pkgconfigdir)/zlib.pc
+# The ranlib in install is needed on NeXTSTEP which checks file times
+# ldconfig is for Linux
+
+install: install-libs
+	-@if [ ! -d $(DESTDIR)$(includedir)   ]; then mkdir -p $(DESTDIR)$(includedir); fi
+	rm -f $(DESTDIR)$(includedir)/zlib.h $(DESTDIR)$(includedir)/zconf.h
+	cp $(SRCDIR)zlib.h zconf.h $(DESTDIR)$(includedir)
+	chmod 644 $(DESTDIR)$(includedir)/zlib.h $(DESTDIR)$(includedir)/zconf.h
+
+uninstall:
+	cd $(DESTDIR)$(includedir) && rm -f zlib.h zconf.h
+	cd $(DESTDIR)$(libdir) && rm -f libz.a; \
+	if test -n "$(SHAREDLIBV)" -a -f $(SHAREDLIBV); then \
+	  rm -f $(SHAREDLIBV) $(SHAREDLIB) $(SHAREDLIBM); \
+	fi
+	cd $(DESTDIR)$(man3dir) && rm -f zlib.3
+	cd $(DESTDIR)$(pkgconfigdir) && rm -f zlib.pc
+
+docs: zlib.3.pdf
+
+zlib.3.pdf: $(SRCDIR)zlib.3
+	groff -mandoc -f H -T ps $(SRCDIR)zlib.3 | ps2pdf - $@
+
+zconf.h.cmakein: $(SRCDIR)zconf.h.in
+	-@ TEMPFILE=zconfh_$$; \
+	echo "/#define ZCONF_H/ a\\\\\n#cmakedefine Z_PREFIX\\\\\n#cmakedefine Z_HAVE_UNISTD_H\n" >> $$TEMPFILE &&\
+	sed -f $$TEMPFILE $(SRCDIR)zconf.h.in > $@ &&\
+	touch -r $(SRCDIR)zconf.h.in $@ &&\
+	rm $$TEMPFILE
+
+zconf: $(SRCDIR)zconf.h.in
+	cp -p $(SRCDIR)zconf.h.in zconf.h
+
+minizip-test: static
+	cd contrib/minizip && { CC="$(CC)" CFLAGS="$(CFLAGS)" $(MAKE) test ; cd ../.. ; }
+
+minizip-clean:
+	cd contrib/minizip && { $(MAKE) clean ; cd ../.. ; }
+
+mostlyclean: clean
+clean: minizip-clean
+	rm -f *.o *.lo *~ \
+	   example$(EXE) minigzip$(EXE) examplesh$(EXE) minigzipsh$(EXE) \
+	   example64$(EXE) minigzip64$(EXE) \
+	   infcover \
+	   libz.* foo.gz so_locations \
+	   _match.s maketree contrib/infback9/*.o
+	rm -rf objs
+	rm -f *.gcda *.gcno *.gcov
+	rm -f contrib/infback9/*.gcda contrib/infback9/*.gcno contrib/infback9/*.gcov
+
+maintainer-clean: distclean
+distclean: clean zconf zconf.h.cmakein
+	rm -f Makefile zlib.pc configure.log
+	-@rm -f .DS_Store
+	@if [ -f Makefile.in ]; then \
+	printf 'all:\n\t-@echo "Please use ./configure first.  Thank you."\n' > Makefile ; \
+	printf '\ndistclean:\n\tmake -f Makefile.in distclean\n' >> Makefile ; \
+	touch -r $(SRCDIR)Makefile.in Makefile ; fi
+
+tags:
+	etags $(SRCDIR)*.[ch]
+
+adler32.o zutil.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
+gzclose.o gzlib.o gzread.o gzwrite.o: $(SRCDIR)zlib.h zconf.h $(SRCDIR)gzguts.h
+compress.o example.o minigzip.o uncompr.o: $(SRCDIR)zlib.h zconf.h
+crc32.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)crc32.h
+deflate.o: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
+infback.o inflate.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h $(SRCDIR)inffixed.h
+inffast.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h
+inftrees.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h
+trees.o: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)trees.h
+
+adler32.lo zutil.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
+gzclose.lo gzlib.lo gzread.lo gzwrite.lo: $(SRCDIR)zlib.h zconf.h $(SRCDIR)gzguts.h
+compress.lo example.lo minigzip.lo uncompr.lo: $(SRCDIR)zlib.h zconf.h
+crc32.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)crc32.h
+deflate.lo: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
+infback.lo inflate.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h $(SRCDIR)inffixed.h
+inffast.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h
+inftrees.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h
+trees.lo: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)trees.h
diff --git a/compat/zlib/README b/compat/zlib/README
new file mode 100644
index 0000000..c5f9175
--- /dev/null
+++ b/compat/zlib/README
@@ -0,0 +1,117 @@
+ZLIB DATA COMPRESSION LIBRARY
+
+zlib 1.3.1 is a general purpose data compression library.  All the code is
+thread safe.  The data format used by the zlib library is described by RFCs
+(Request for Comments) 1950 to 1952 in the files
+http://tools.ietf.org/html/rfc1950 (zlib format), rfc1951 (deflate format) and
+rfc1952 (gzip format).
+
+All functions of the compression library are documented in the file zlib.h
+(volunteer to write man pages welcome, contact zlib@gzip.org).  A usage example
+of the library is given in the file test/example.c which also tests that
+the library is working correctly.  Another example is given in the file
+test/minigzip.c.  The compression library itself is composed of all source
+files in the root directory.
+
+To compile all files and run the test program, follow the instructions given at
+the top of Makefile.in.  In short "./configure; make test", and if that goes
+well, "make install" should work for most flavors of Unix.  For Windows, use
+one of the special makefiles in win32/ or contrib/vstudio/ .  For VMS, use
+make_vms.com.
+
+Questions about zlib should be sent to <zlib@gzip.org>, or to Gilles Vollant
+<info@winimage.com> for the Windows DLL version.  The zlib home page is
+http://zlib.net/ .  Before reporting a problem, please check this site to
+verify that you have the latest version of zlib; otherwise get the latest
+version and check whether the problem still exists or not.
+
+PLEASE read the zlib FAQ http://zlib.net/zlib_faq.html before asking for help.
+
+Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan.  1997
+issue of Dr.  Dobb's Journal; a copy of the article is available at
+https://marknelson.us/posts/1997/01/01/zlib-engine.html .
+
+The changes made in version 1.3.1 are documented in the file ChangeLog.
+
+Unsupported third party contributions are provided in directory contrib/ .
+
+zlib is available in Java using the java.util.zip package. Follow the API
+Documentation link at: https://docs.oracle.com/search/?q=java.util.zip .
+
+A Perl interface to zlib and bzip2 written by Paul Marquess <pmqs@cpan.org>
+can be found at https://github.com/pmqs/IO-Compress .
+
+A Python interface to zlib written by A.M. Kuchling <amk@amk.ca> is
+available in Python 1.5 and later versions, see
+http://docs.python.org/library/zlib.html .
+
+zlib is built into tcl: http://wiki.tcl.tk/4610 .
+
+An experimental package to read and write files in .zip format, written on top
+of zlib by Gilles Vollant <info@winimage.com>, is available in the
+contrib/minizip directory of zlib.
+
+
+Notes for some targets:
+
+- For Windows DLL versions, please see win32/DLL_FAQ.txt
+
+- For 64-bit Irix, deflate.c must be compiled without any optimization. With
+  -O, one libpng test fails. The test works in 32 bit mode (with the -n32
+  compiler flag). The compiler bug has been reported to SGI.
+
+- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works
+  when compiled with cc.
+
+- On Digital Unix 4.0D (formerly OSF/1) on AlphaServer, the cc option -std1 is
+  necessary to get gzprintf working correctly. This is done by configure.
+
+- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works with
+  other compilers. Use "make test" to check your compiler.
+
+- gzdopen is not supported on RISCOS or BEOS.
+
+- For PalmOs, see http://palmzlib.sourceforge.net/
+
+
+Acknowledgments:
+
+  The deflate format used by zlib was defined by Phil Katz.  The deflate and
+  zlib specifications were written by L.  Peter Deutsch.  Thanks to all the
+  people who reported problems and suggested various improvements in zlib; they
+  are too numerous to cite here.
+
+Copyright notice:
+
+ (C) 1995-2024 Jean-loup Gailly and Mark Adler
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Jean-loup Gailly        Mark Adler
+  jloup@gzip.org          madler@alumni.caltech.edu
+
+If you use the zlib library in a product, we would appreciate *not* receiving
+lengthy legal documents to sign.  The sources are provided for free but without
+warranty of any kind.  The library has been entirely written by Jean-loup
+Gailly and Mark Adler; it does not include third-party code.  We make all
+contributions to and distributions of this project solely in our personal
+capacity, and are not conveying any rights to any intellectual property of
+any third parties.
+
+If you redistribute modified sources, we would appreciate that you include in
+the file ChangeLog history information documenting your changes.  Please read
+the FAQ for more information on the distribution of modified source versions.
diff --git a/compat/zlib/adler32.c b/compat/zlib/adler32.c
new file mode 100644
index 0000000..04b81d2
--- /dev/null
+++ b/compat/zlib/adler32.c
@@ -0,0 +1,164 @@
+/* adler32.c -- compute the Adler-32 checksum of a data stream
+ * Copyright (C) 1995-2011, 2016 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#include "zutil.h"
+
+#define BASE 65521U     /* largest prime smaller than 65536 */
+#define NMAX 5552
+/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */
+
+#define DO1(buf,i)  {adler += (buf)[i]; sum2 += adler;}
+#define DO2(buf,i)  DO1(buf,i); DO1(buf,i+1);
+#define DO4(buf,i)  DO2(buf,i); DO2(buf,i+2);
+#define DO8(buf,i)  DO4(buf,i); DO4(buf,i+4);
+#define DO16(buf)   DO8(buf,0); DO8(buf,8);
+
+/* use NO_DIVIDE if your processor does not do division in hardware --
+   try it both ways to see which is faster */
+#ifdef NO_DIVIDE
+/* note that this assumes BASE is 65521, where 65536 % 65521 == 15
+   (thank you to John Reiser for pointing this out) */
+#  define CHOP(a) \
+    do { \
+        unsigned long tmp = a >> 16; \
+        a &= 0xffffUL; \
+        a += (tmp << 4) - tmp; \
+    } while (0)
+#  define MOD28(a) \
+    do { \
+        CHOP(a); \
+        if (a >= BASE) a -= BASE; \
+    } while (0)
+#  define MOD(a) \
+    do { \
+        CHOP(a); \
+        MOD28(a); \
+    } while (0)
+#  define MOD63(a) \
+    do { /* this assumes a is not negative */ \
+        z_off64_t tmp = a >> 32; \
+        a &= 0xffffffffL; \
+        a += (tmp << 8) - (tmp << 5) + tmp; \
+        tmp = a >> 16; \
+        a &= 0xffffL; \
+        a += (tmp << 4) - tmp; \
+        tmp = a >> 16; \
+        a &= 0xffffL; \
+        a += (tmp << 4) - tmp; \
+        if (a >= BASE) a -= BASE; \
+    } while (0)
+#else
+#  define MOD(a) a %= BASE
+#  define MOD28(a) a %= BASE
+#  define MOD63(a) a %= BASE
+#endif
+
+/* ========================================================================= */
+uLong ZEXPORT adler32_z(uLong adler, const Bytef *buf, z_size_t len) {
+    unsigned long sum2;
+    unsigned n;
+
+    /* split Adler-32 into component sums */
+    sum2 = (adler >> 16) & 0xffff;
+    adler &= 0xffff;
+
+    /* in case user likes doing a byte at a time, keep it fast */
+    if (len == 1) {
+        adler += buf[0];
+        if (adler >= BASE)
+            adler -= BASE;
+        sum2 += adler;
+        if (sum2 >= BASE)
+            sum2 -= BASE;
+        return adler | (sum2 << 16);
+    }
+
+    /* initial Adler-32 value (deferred check for len == 1 speed) */
+    if (buf == Z_NULL)
+        return 1L;
+
+    /* in case short lengths are provided, keep it somewhat fast */
+    if (len < 16) {
+        while (len--) {
+            adler += *buf++;
+            sum2 += adler;
+        }
+        if (adler >= BASE)
+            adler -= BASE;
+        MOD28(sum2);            /* only added so many BASE's */
+        return adler | (sum2 << 16);
+    }
+
+    /* do length NMAX blocks -- requires just one modulo operation */
+    while (len >= NMAX) {
+        len -= NMAX;
+        n = NMAX / 16;          /* NMAX is divisible by 16 */
+        do {
+            DO16(buf);          /* 16 sums unrolled */
+            buf += 16;
+        } while (--n);
+        MOD(adler);
+        MOD(sum2);
+    }
+
+    /* do remaining bytes (less than NMAX, still just one modulo) */
+    if (len) {                  /* avoid modulos if none remaining */
+        while (len >= 16) {
+            len -= 16;
+            DO16(buf);
+            buf += 16;
+        }
+        while (len--) {
+            adler += *buf++;
+            sum2 += adler;
+        }
+        MOD(adler);
+        MOD(sum2);
+    }
+
+    /* return recombined sums */
+    return adler | (sum2 << 16);
+}
+
+/* ========================================================================= */
+uLong ZEXPORT adler32(uLong adler, const Bytef *buf, uInt len) {
+    return adler32_z(adler, buf, len);
+}
+
+/* ========================================================================= */
+local uLong adler32_combine_(uLong adler1, uLong adler2, z_off64_t len2) {
+    unsigned long sum1;
+    unsigned long sum2;
+    unsigned rem;
+
+    /* for negative len, return invalid adler32 as a clue for debugging */
+    if (len2 < 0)
+        return 0xffffffffUL;
+
+    /* the derivation of this formula is left as an exercise for the reader */
+    MOD63(len2);                /* assumes len2 >= 0 */
+    rem = (unsigned)len2;
+    sum1 = adler1 & 0xffff;
+    sum2 = rem * sum1;
+    MOD(sum2);
+    sum1 += (adler2 & 0xffff) + BASE - 1;
+    sum2 += ((adler1 >> 16) & 0xffff) + ((adler2 >> 16) & 0xffff) + BASE - rem;
+    if (sum1 >= BASE) sum1 -= BASE;
+    if (sum1 >= BASE) sum1 -= BASE;
+    if (sum2 >= ((unsigned long)BASE << 1)) sum2 -= ((unsigned long)BASE << 1);
+    if (sum2 >= BASE) sum2 -= BASE;
+    return sum1 | (sum2 << 16);
+}
+
+/* ========================================================================= */
+uLong ZEXPORT adler32_combine(uLong adler1, uLong adler2, z_off_t len2) {
+    return adler32_combine_(adler1, adler2, len2);
+}
+
+uLong ZEXPORT adler32_combine64(uLong adler1, uLong adler2, z_off64_t len2) {
+    return adler32_combine_(adler1, adler2, len2);
+}
diff --git a/compat/zlib/amiga/Makefile.pup b/compat/zlib/amiga/Makefile.pup
new file mode 100644
index 0000000..8940c12
--- /dev/null
+++ b/compat/zlib/amiga/Makefile.pup
@@ -0,0 +1,69 @@
+# Amiga powerUP (TM) Makefile
+# makefile for libpng and SAS C V6.58/7.00 PPC compiler
+# Copyright (C) 1998 by Andreas R. Kleinert
+
+LIBNAME	= libzip.a
+
+CC	= scppc
+CFLAGS	= NOSTKCHK NOSINT OPTIMIZE OPTGO OPTPEEP OPTINLOCAL OPTINL \
+	  OPTLOOP OPTRDEP=8 OPTDEP=8 OPTCOMP=8 NOVER
+AR	= ppc-amigaos-ar cr
+RANLIB	= ppc-amigaos-ranlib
+LD	= ppc-amigaos-ld -r
+LDFLAGS	= -o
+LDLIBS	= LIB:scppc.a LIB:end.o
+RM	= delete quiet
+
+OBJS = adler32.o compress.o crc32.o gzclose.o gzlib.o gzread.o gzwrite.o \
+       uncompr.o deflate.o trees.o zutil.o inflate.o infback.o inftrees.o inffast.o
+
+TEST_OBJS = example.o minigzip.o
+
+all: example minigzip
+
+check: test
+test: all
+	example
+	echo hello world | minigzip | minigzip -d
+
+$(LIBNAME): $(OBJS)
+	$(AR) $@ $(OBJS)
+	-$(RANLIB) $@
+
+example: example.o $(LIBNAME)
+	$(LD) $(LDFLAGS) $@ LIB:c_ppc.o $@.o $(LIBNAME) $(LDLIBS)
+
+minigzip: minigzip.o $(LIBNAME)
+	$(LD) $(LDFLAGS) $@ LIB:c_ppc.o $@.o $(LIBNAME) $(LDLIBS)
+
+mostlyclean: clean
+clean:
+	$(RM) *.o example minigzip $(LIBNAME) foo.gz
+
+zip:
+	zip -ul9 zlib README ChangeLog Makefile Make????.??? Makefile.?? \
+	  descrip.mms *.[ch]
+
+tgz:
+	cd ..; tar cfz zlib/zlib.tgz zlib/README zlib/ChangeLog zlib/Makefile \
+	  zlib/Make????.??? zlib/Makefile.?? zlib/descrip.mms zlib/*.[ch]
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+adler32.o: zlib.h zconf.h
+compress.o: zlib.h zconf.h
+crc32.o: crc32.h zlib.h zconf.h
+deflate.o: deflate.h zutil.h zlib.h zconf.h
+example.o: zlib.h zconf.h
+gzclose.o: zlib.h zconf.h gzguts.h
+gzlib.o: zlib.h zconf.h gzguts.h
+gzread.o: zlib.h zconf.h gzguts.h
+gzwrite.o: zlib.h zconf.h gzguts.h
+inffast.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+inflate.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+infback.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+inftrees.o: zutil.h zlib.h zconf.h inftrees.h
+minigzip.o: zlib.h zconf.h
+trees.o: deflate.h zutil.h zlib.h zconf.h trees.h
+uncompr.o: zlib.h zconf.h
+zutil.o: zutil.h zlib.h zconf.h
diff --git a/compat/zlib/amiga/Makefile.sas b/compat/zlib/amiga/Makefile.sas
new file mode 100644
index 0000000..749e291
--- /dev/null
+++ b/compat/zlib/amiga/Makefile.sas
@@ -0,0 +1,68 @@
+# SMakefile for zlib
+# Modified from the standard UNIX Makefile Copyright Jean-loup Gailly
+# Osma Ahvenlampi <Osma.Ahvenlampi@hut.fi>
+# Amiga, SAS/C 6.56 & Smake
+
+CC=sc
+CFLAGS=OPT
+#CFLAGS=OPT CPU=68030
+#CFLAGS=DEBUG=LINE
+LDFLAGS=LIB z.lib
+
+SCOPTIONS=OPTSCHED OPTINLINE OPTALIAS OPTTIME OPTINLOCAL STRMERGE \
+       NOICONS PARMS=BOTH NOSTACKCHECK UTILLIB NOVERSION ERRORREXX \
+       DEF=POSTINC
+
+OBJS = adler32.o compress.o crc32.o gzclose.o gzlib.o gzread.o gzwrite.o \
+       uncompr.o deflate.o trees.o zutil.o inflate.o infback.o inftrees.o inffast.o
+
+TEST_OBJS = example.o minigzip.o
+
+all: SCOPTIONS example minigzip
+
+check: test
+test: all
+	example
+	echo hello world | minigzip | minigzip -d
+
+install: z.lib
+	copy clone zlib.h zconf.h INCLUDE:
+	copy clone z.lib LIB:
+
+z.lib: $(OBJS)
+	oml z.lib r $(OBJS)
+
+example: example.o z.lib
+	$(CC) $(CFLAGS) LINK TO $@ example.o $(LDFLAGS)
+
+minigzip: minigzip.o z.lib
+	$(CC) $(CFLAGS) LINK TO $@ minigzip.o $(LDFLAGS)
+
+mostlyclean: clean
+clean:
+	-delete force quiet example minigzip *.o z.lib foo.gz *.lnk SCOPTIONS
+
+SCOPTIONS: Makefile.sas
+	copy to $@ <from <
+$(SCOPTIONS)
+<
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+adler32.o: zlib.h zconf.h
+compress.o: zlib.h zconf.h
+crc32.o: crc32.h zlib.h zconf.h
+deflate.o: deflate.h zutil.h zlib.h zconf.h
+example.o: zlib.h zconf.h
+gzclose.o: zlib.h zconf.h gzguts.h
+gzlib.o: zlib.h zconf.h gzguts.h
+gzread.o: zlib.h zconf.h gzguts.h
+gzwrite.o: zlib.h zconf.h gzguts.h
+inffast.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+inflate.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+infback.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+inftrees.o: zutil.h zlib.h zconf.h inftrees.h
+minigzip.o: zlib.h zconf.h
+trees.o: deflate.h zutil.h zlib.h zconf.h trees.h
+uncompr.o: zlib.h zconf.h
+zutil.o: zutil.h zlib.h zconf.h
diff --git a/compat/zlib/compress.c b/compat/zlib/compress.c
new file mode 100644
index 0000000..f43bacf
--- /dev/null
+++ b/compat/zlib/compress.c
@@ -0,0 +1,75 @@
+/* compress.c -- compress a memory buffer
+ * Copyright (C) 1995-2005, 2014, 2016 Jean-loup Gailly, Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#define ZLIB_INTERNAL
+#include "zlib.h"
+
+/* ===========================================================================
+     Compresses the source buffer into the destination buffer. The level
+   parameter has the same meaning as in deflateInit.  sourceLen is the byte
+   length of the source buffer. Upon entry, destLen is the total size of the
+   destination buffer, which must be at least 0.1% larger than sourceLen plus
+   12 bytes. Upon exit, destLen is the actual size of the compressed buffer.
+
+     compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
+   memory, Z_BUF_ERROR if there was not enough room in the output buffer,
+   Z_STREAM_ERROR if the level parameter is invalid.
+*/
+int ZEXPORT compress2(Bytef *dest, uLongf *destLen, const Bytef *source,
+                      uLong sourceLen, int level) {
+    z_stream stream;
+    int err;
+    const uInt max = (uInt)-1;
+    uLong left;
+
+    left = *destLen;
+    *destLen = 0;
+
+    stream.zalloc = (alloc_func)0;
+    stream.zfree = (free_func)0;
+    stream.opaque = (voidpf)0;
+
+    err = deflateInit(&stream, level);
+    if (err != Z_OK) return err;
+
+    stream.next_out = dest;
+    stream.avail_out = 0;
+    stream.next_in = (z_const Bytef *)source;
+    stream.avail_in = 0;
+
+    do {
+        if (stream.avail_out == 0) {
+            stream.avail_out = left > (uLong)max ? max : (uInt)left;
+            left -= stream.avail_out;
+        }
+        if (stream.avail_in == 0) {
+            stream.avail_in = sourceLen > (uLong)max ? max : (uInt)sourceLen;
+            sourceLen -= stream.avail_in;
+        }
+        err = deflate(&stream, sourceLen ? Z_NO_FLUSH : Z_FINISH);
+    } while (err == Z_OK);
+
+    *destLen = stream.total_out;
+    deflateEnd(&stream);
+    return err == Z_STREAM_END ? Z_OK : err;
+}
+
+/* ===========================================================================
+ */
+int ZEXPORT compress(Bytef *dest, uLongf *destLen, const Bytef *source,
+                     uLong sourceLen) {
+    return compress2(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION);
+}
+
+/* ===========================================================================
+     If the default memLevel or windowBits for deflateInit() is changed, then
+   this function needs to be updated.
+ */
+uLong ZEXPORT compressBound(uLong sourceLen) {
+    return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) +
+           (sourceLen >> 25) + 13;
+}
diff --git a/compat/zlib/configure b/compat/zlib/configure
new file mode 100755
index 0000000..c55098a
--- /dev/null
+++ b/compat/zlib/configure
@@ -0,0 +1,929 @@
+#!/bin/sh
+# configure script for zlib.
+#
+# Normally configure builds both a static and a shared library.
+# If you want to build just a static library, use: ./configure --static
+#
+# To impose specific compiler or flags or install directory, use for example:
+#    prefix=$HOME CC=cc CFLAGS="-O4" ./configure
+# or for csh/tcsh users:
+#    (setenv prefix $HOME; setenv CC cc; setenv CFLAGS "-O4"; ./configure)
+
+# Incorrect settings of CC or CFLAGS may prevent creating a shared library.
+# If you have problems, try without defining CC and CFLAGS before reporting
+# an error.
+
+# start off configure.log
+echo -------------------- >> configure.log
+echo $0 $* >> configure.log
+date >> configure.log
+
+# get source directory
+SRCDIR=`dirname $0`
+if test $SRCDIR = "."; then
+    ZINC=""
+    ZINCOUT="-I."
+    SRCDIR=""
+else
+    ZINC='-I. -include zconf.h'
+    ZINCOUT='-I. -I$(SRCDIR)'
+    SRCDIR="$SRCDIR/"
+fi
+
+# set command prefix for cross-compilation
+if [ -n "${CHOST}" ]; then
+    uname=${CHOST}
+    mname=${CHOST}
+    CROSS_PREFIX="${CHOST}-"
+else
+    mname=`(uname -a || echo unknown) 2>/dev/null`
+fi
+
+# destination name for static library
+STATICLIB=libz.a
+
+# extract zlib version numbers from zlib.h
+VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < ${SRCDIR}zlib.h`
+VER3=`echo ${VER}|sed -n -e 's/\([0-9]\{1,\}\(\\.[0-9]\{1,\}\)\{1,2\}\).*/\1/p'`
+VER1=`echo ${VER}|sed -n -e 's/\([0-9]\{1,\}\)\\..*/\1/p'`
+
+# establish commands for library building
+if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? -lt 126; then
+    AR=${AR-"${CROSS_PREFIX}ar"}
+    test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log
+else
+    AR=${AR-"ar"}
+    test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log
+fi
+ARFLAGS=${ARFLAGS-"rc"}
+if "${CROSS_PREFIX}ranlib" --version >/dev/null 2>/dev/null || test $? -lt 126; then
+    RANLIB=${RANLIB-"${CROSS_PREFIX}ranlib"}
+    test -n "${CROSS_PREFIX}" && echo Using ${RANLIB} | tee -a configure.log
+else
+    RANLIB=${RANLIB-"ranlib"}
+fi
+if "${CROSS_PREFIX}nm" --version >/dev/null 2>/dev/null || test $? -lt 126; then
+    NM=${NM-"${CROSS_PREFIX}nm"}
+    test -n "${CROSS_PREFIX}" && echo Using ${NM} | tee -a configure.log
+else
+    NM=${NM-"nm"}
+fi
+
+# set defaults before processing command line options
+LDCONFIG=${LDCONFIG-"ldconfig"}
+LDSHAREDLIBC="${LDSHAREDLIBC--lc}"
+ARCHS=
+prefix=${prefix-/usr/local}
+exec_prefix=${exec_prefix-'${prefix}'}
+libdir=${libdir-'${exec_prefix}/lib'}
+sharedlibdir=${sharedlibdir-'${libdir}'}
+includedir=${includedir-'${prefix}/include'}
+mandir=${mandir-'${prefix}/share/man'}
+shared_ext='.so'
+shared=1
+solo=0
+cover=0
+zprefix=0
+zconst=0
+build64=0
+gcc=0
+warn=0
+debug=0
+address=0
+memory=0
+old_cc="$CC"
+old_cflags="$CFLAGS"
+OBJC='$(OBJZ) $(OBJG)'
+PIC_OBJC='$(PIC_OBJZ) $(PIC_OBJG)'
+
+# leave this script, optionally in a bad way
+leave()
+{
+  if test "$*" != "0"; then
+    echo "** $0 aborting." | tee -a configure.log
+  fi
+  rm -rf $test.[co] $test $test$shared_ext $test.gcno $test.dSYM ./--version
+  echo -------------------- >> configure.log
+  echo >> configure.log
+  echo >> configure.log
+  exit $1
+}
+
+# process command line options
+while test $# -ge 1
+do
+case "$1" in
+    -h* | --help)
+      echo 'usage:' | tee -a configure.log
+      echo '  configure [--const] [--zprefix] [--prefix=PREFIX]  [--eprefix=EXPREFIX]' | tee -a configure.log
+      echo '    [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]' | tee -a configure.log
+      echo '    [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]' | tee -a configure.log
+        exit 0 ;;
+    -p*=* | --prefix=*) prefix=`echo $1 | sed 's/.*=//'`; shift ;;
+    -e*=* | --eprefix=*) exec_prefix=`echo $1 | sed 's/.*=//'`; shift ;;
+    -l*=* | --libdir=*) libdir=`echo $1 | sed 's/.*=//'`; shift ;;
+    --sharedlibdir=*) sharedlibdir=`echo $1 | sed 's/.*=//'`; shift ;;
+    -i*=* | --includedir=*) includedir=`echo $1 | sed 's/.*=//'`;shift ;;
+    -u*=* | --uname=*) uname=`echo $1 | sed 's/.*=//'`;shift ;;
+    -p* | --prefix) prefix="$2"; shift; shift ;;
+    -e* | --eprefix) exec_prefix="$2"; shift; shift ;;
+    -l* | --libdir) libdir="$2"; shift; shift ;;
+    -i* | --includedir) includedir="$2"; shift; shift ;;
+    -s* | --shared | --enable-shared) shared=1; shift ;;
+    -t | --static) shared=0; shift ;;
+    --solo) solo=1; shift ;;
+    --cover) cover=1; shift ;;
+    -z* | --zprefix) zprefix=1; shift ;;
+    -6* | --64) build64=1; shift ;;
+    -a*=* | --archs=*) ARCHS=`echo $1 | sed 's/.*=//'`; shift ;;
+    --sysconfdir=*) echo "ignored option: --sysconfdir" | tee -a configure.log; shift ;;
+    --localstatedir=*) echo "ignored option: --localstatedir" | tee -a configure.log; shift ;;
+    -c* | --const) zconst=1; shift ;;
+    -w* | --warn) warn=1; shift ;;
+    -d* | --debug) debug=1; shift ;;
+    --sanitize) address=1; shift ;;
+    --address) address=1; shift ;;
+    --memory) memory=1; shift ;;
+    *)
+      echo "unknown option: $1" | tee -a configure.log
+      echo "$0 --help for help" | tee -a configure.log
+      leave 1;;
+    esac
+done
+
+# temporary file name
+test=ztest$$
+
+# put arguments in log, also put test file in log if used in arguments
+show()
+{
+  case "$*" in
+    *$test.c*)
+      echo === $test.c === >> configure.log
+      cat $test.c >> configure.log
+      echo === >> configure.log;;
+  esac
+  echo $* >> configure.log
+}
+
+# check for gcc vs. cc and set compile and link flags based on the system identified by uname
+cat > $test.c <<EOF
+extern int getchar();
+int hello() {return getchar();}
+EOF
+
+if test -z "$CC"; then
+  echo Checking for ${CROSS_PREFIX}gcc... | tee -a configure.log
+  if ${CROSS_PREFIX}gcc -v >/dev/null 2>&1; then
+    cc=${CROSS_PREFIX}gcc
+  else
+    cc=${CROSS_PREFIX}cc
+  fi
+else
+  cc=${CC}
+fi
+
+case "$cc" in
+  *gcc*) gcc=1 ;;
+  *clang*) gcc=1 ;;
+esac
+case `$cc -v 2>&1` in
+  *gcc*) gcc=1 ;;
+  *clang*) gcc=1 ;;
+esac
+
+show $cc -c $test.c
+if test "$gcc" -eq 1 && ($cc -c $test.c) >> configure.log 2>&1; then
+  echo ... using gcc >> configure.log
+  CC="$cc"
+  CFLAGS="${CFLAGS--O3}"
+  SFLAGS="${CFLAGS--O3} -fPIC"
+  if test "$ARCHS"; then
+    CFLAGS="${CFLAGS} ${ARCHS}"
+    LDFLAGS="${LDFLAGS} ${ARCHS}"
+  fi
+  if test $build64 -eq 1; then
+    CFLAGS="${CFLAGS} -m64"
+    SFLAGS="${SFLAGS} -m64"
+  fi
+  if test "$warn" -eq 1; then
+    if test "$zconst" -eq 1; then
+      CFLAGS="${CFLAGS} -Wall -Wextra -Wcast-qual -DZLIB_CONST"
+    else
+      CFLAGS="${CFLAGS} -Wall -Wextra"
+    fi
+  fi
+  if test $address -eq 1; then
+    CFLAGS="${CFLAGS} -g -fsanitize=address -fno-omit-frame-pointer"
+  fi
+  if test $memory -eq 1; then
+    CFLAGS="${CFLAGS} -g -fsanitize=memory -fno-omit-frame-pointer"
+  fi
+  if test $debug -eq 1; then
+    CFLAGS="${CFLAGS} -DZLIB_DEBUG"
+    SFLAGS="${SFLAGS} -DZLIB_DEBUG"
+  fi
+  if test -z "$uname"; then
+    uname=`(uname -s || echo unknown) 2>/dev/null`
+  fi
+  case "$uname" in
+  Linux* | linux* | *-linux* | GNU | GNU/* | solaris*)
+        case "$mname" in
+        *sparc*)
+            LDFLAGS="${LDFLAGS} -Wl,--no-warn-rwx-segments" ;;
+        esac
+        LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"} ;;
+  *BSD | *bsd* | DragonFly)
+        LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"}
+        LDCONFIG="ldconfig -m" ;;
+  CYGWIN* | Cygwin* | cygwin* | *-cygwin* | OS/2*)
+        EXE='.exe' ;;
+  MINGW* | mingw* | *-mingw*)
+        rm -f $test.[co] $test $test$shared_ext
+        echo "If this doesn't work for you, try win32/Makefile.gcc." | tee -a configure.log
+        LDSHARED=${LDSHARED-"$cc -shared"}
+        LDSHAREDLIBC=""
+        EXE='.exe' ;;
+  QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4
+        # (alain.bonnefoy@icbt.com)
+        LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;;
+  HP-UX*)
+        LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"}
+        case `(uname -m || echo unknown) 2>/dev/null` in
+        ia64)
+            shared_ext='.so'
+            SHAREDLIB='libz.so' ;;
+        *)
+            shared_ext='.sl'
+            SHAREDLIB='libz.sl' ;;
+        esac ;;
+  AIX*)
+        LDFLAGS="${LDFLAGS} -Wl,-brtl" ;;
+  Darwin* | darwin* | *-darwin*)
+        shared_ext='.dylib'
+        SHAREDLIB=libz$shared_ext
+        SHAREDLIBV=libz.$VER$shared_ext
+        SHAREDLIBM=libz.$VER1$shared_ext
+        LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"}
+        if "${CROSS_PREFIX}libtool" -V 2>&1 | grep Apple > /dev/null; then
+            AR="${CROSS_PREFIX}libtool"
+        elif libtool -V 2>&1 | grep Apple > /dev/null; then
+            AR="libtool"
+        else
+            AR="/usr/bin/libtool"
+        fi
+        ARFLAGS="-o" ;;
+  *)
+        LDSHARED=${LDSHARED-"$cc -shared"} ;;
+  esac
+else
+  # find system name and corresponding cc options
+  CC=${CC-cc}
+  gcc=0
+  echo ... using $CC >> configure.log
+  if test -z "$uname"; then
+    uname=`(uname -sr || echo unknown) 2>/dev/null`
+  fi
+  case "$uname" in
+  HP-UX*)    SFLAGS=${CFLAGS-"-O +z"}
+             CFLAGS=${CFLAGS-"-O"}
+#            LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
+             LDSHARED=${LDSHARED-"ld -b"}
+         case `(uname -m || echo unknown) 2>/dev/null` in
+         ia64)
+             shared_ext='.so'
+             SHAREDLIB='libz.so' ;;
+         *)
+             shared_ext='.sl'
+             SHAREDLIB='libz.sl' ;;
+         esac ;;
+  IRIX*)     SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
+             CFLAGS=${CFLAGS-"-ansi -O2"}
+             LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
+  OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"}
+             CFLAGS=${CFLAGS-"-O -std1"}
+             LDFLAGS="${LDFLAGS} -Wl,-rpath,."
+             LDSHARED=${LDSHARED-"cc -shared  -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;;
+  OSF1*)     SFLAGS=${CFLAGS-"-O -std1"}
+             CFLAGS=${CFLAGS-"-O -std1"}
+             LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
+  QNX*)      SFLAGS=${CFLAGS-"-4 -O"}
+             CFLAGS=${CFLAGS-"-4 -O"}
+             LDSHARED=${LDSHARED-"cc"}
+             RANLIB=${RANLIB-"true"}
+             AR="cc"
+             ARFLAGS="-A" ;;
+  SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
+             CFLAGS=${CFLAGS-"-O3"}
+             LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;;
+  SunOS\ 5* | solaris*)
+         LDSHARED=${LDSHARED-"cc -G -h libz$shared_ext.$VER1"}
+         SFLAGS=${CFLAGS-"-fast -KPIC"}
+         CFLAGS=${CFLAGS-"-fast"}
+         if test $build64 -eq 1; then
+             # old versions of SunPRO/Workshop/Studio don't support -m64,
+             # but newer ones do.  Check for it.
+             flag64=`$CC -flags | egrep -- '^-m64'`
+             if test x"$flag64" != x"" ; then
+                 CFLAGS="${CFLAGS} -m64"
+                 SFLAGS="${SFLAGS} -m64"
+             else
+                 case `(uname -m || echo unknown) 2>/dev/null` in
+                   i86*)
+                     SFLAGS="$SFLAGS -xarch=amd64"
+                     CFLAGS="$CFLAGS -xarch=amd64" ;;
+                   *)
+                     SFLAGS="$SFLAGS -xarch=v9"
+                     CFLAGS="$CFLAGS -xarch=v9" ;;
+                 esac
+             fi
+         fi
+         if test -n "$ZINC"; then
+             ZINC='-I- -I. -I$(SRCDIR)'
+         fi
+         ;;
+  SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
+             CFLAGS=${CFLAGS-"-O2"}
+             LDSHARED=${LDSHARED-"ld"} ;;
+  SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"}
+             CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"}
+             LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;;
+  UNIX_System_V\ 4.2.0)
+             SFLAGS=${CFLAGS-"-KPIC -O"}
+             CFLAGS=${CFLAGS-"-O"}
+             LDSHARED=${LDSHARED-"cc -G"} ;;
+  UNIX_SV\ 4.2MP)
+             SFLAGS=${CFLAGS-"-Kconform_pic -O"}
+             CFLAGS=${CFLAGS-"-O"}
+             LDSHARED=${LDSHARED-"cc -G"} ;;
+  OpenUNIX\ 5)
+             SFLAGS=${CFLAGS-"-KPIC -O"}
+             CFLAGS=${CFLAGS-"-O"}
+             LDSHARED=${LDSHARED-"cc -G"} ;;
+  AIX*)  # Courtesy of dbakker@arrayasolutions.com
+             SFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
+             CFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
+             LDSHARED=${LDSHARED-"xlc -G"} ;;
+  # send working options for other systems to zlib@gzip.org
+  *)         SFLAGS=${CFLAGS-"-O"}
+             CFLAGS=${CFLAGS-"-O"}
+             LDSHARED=${LDSHARED-"cc -shared"} ;;
+  esac
+fi
+
+# destination names for shared library if not defined above
+SHAREDLIB=${SHAREDLIB-"libz$shared_ext"}
+SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"}
+SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"}
+
+echo >> configure.log
+
+# define functions for testing compiler and library characteristics and logging the results
+
+cat > $test.c <<EOF
+#error error
+EOF
+if ($CC -c $CFLAGS $test.c) 2>/dev/null; then
+  try()
+  {
+    show $*
+    test "`( $* ) 2>&1 | tee -a configure.log`" = ""
+  }
+  echo - using any output from compiler to indicate an error >> configure.log
+else
+  try()
+  {
+    show $*
+    got=`( $* ) 2>&1`
+    ret=$?
+    if test "$got" != ""; then
+      printf "%s\n" "$got" >> configure.log
+    fi
+    if test $ret -ne 0; then
+      echo "(exit code "$ret")" >> configure.log
+    fi
+    return $ret
+  }
+fi
+
+tryboth()
+{
+  show $*
+  got=`( $* ) 2>&1`
+  ret=$?
+  if test "$got" != ""; then
+    printf "%s\n" "$got" >> configure.log
+  fi
+  if test $ret -ne 0; then
+    echo "(exit code "$ret")" >> configure.log
+    return $ret
+  fi
+  test "$got" = ""
+}
+
+cat > $test.c << EOF
+int foo() { return 0; }
+EOF
+echo "Checking for obsessive-compulsive compiler options..." >> configure.log
+if try $CC -c $CFLAGS $test.c; then
+  :
+else
+  echo "Compiler error reporting is too harsh for $0 (perhaps remove -Werror)." | tee -a configure.log
+  leave 1
+fi
+
+echo >> configure.log
+
+# see if shared library build supported
+cat > $test.c <<EOF
+extern int getchar();
+int hello() {return getchar();}
+EOF
+if test $shared -eq 1; then
+  echo Checking for shared library support... | tee -a configure.log
+  # we must test in two steps (cc then ld), required at least on SunOS 4.x
+  if try $CC -c $SFLAGS $test.c &&
+     try $LDSHARED $SFLAGS -o $test$shared_ext $test.o; then
+    echo Building shared library $SHAREDLIBV with $CC. | tee -a configure.log
+  elif test -z "$old_cc" -a -z "$old_cflags"; then
+    echo No shared library support. | tee -a configure.log
+    shared=0;
+  else
+    echo 'No shared library support; try without defining CC and CFLAGS' | tee -a configure.log
+    shared=0;
+  fi
+fi
+if test $shared -eq 0; then
+  LDSHARED="$CC"
+  ALL="static"
+  TEST="all teststatic"
+  SHAREDLIB=""
+  SHAREDLIBV=""
+  SHAREDLIBM=""
+  echo Building static library $STATICLIB version $VER with $CC. | tee -a configure.log
+else
+  ALL="static shared"
+  TEST="all teststatic testshared"
+fi
+
+echo >> configure.log
+
+# check for size_t
+cat > $test.c <<EOF
+#include <stdio.h>
+#include <stdlib.h>
+size_t dummy = 0;
+EOF
+if try $CC -c $CFLAGS $test.c; then
+  echo "Checking for size_t... Yes." | tee -a configure.log
+else
+  echo "Checking for size_t... No." | tee -a configure.log
+  # find a size_t integer type
+  # check for long long
+  cat > $test.c << EOF
+long long dummy = 0;
+EOF
+  if try $CC -c $CFLAGS $test.c; then
+    echo "Checking for long long... Yes." | tee -a configure.log
+    cat > $test.c <<EOF
+#include <stdio.h>
+int main(void) {
+    if (sizeof(void *) <= sizeof(int)) puts("int");
+    else if (sizeof(void *) <= sizeof(long)) puts("long");
+    else puts("z_longlong");
+    return 0;
+}
+EOF
+  else
+    echo "Checking for long long... No." | tee -a configure.log
+    cat > $test.c <<EOF
+#include <stdio.h>
+int main(void) {
+    if (sizeof(void *) <= sizeof(int)) puts("int");
+    else puts("long");
+    return 0;
+}
+EOF
+  fi
+  if try $CC $CFLAGS -o $test $test.c; then
+    sizet=`./$test`
+    echo "Checking for a pointer-size integer type..." $sizet"." | tee -a configure.log
+    CFLAGS="${CFLAGS} -DNO_SIZE_T=${sizet}"
+    SFLAGS="${SFLAGS} -DNO_SIZE_T=${sizet}"
+  else
+    echo "Checking for a pointer-size integer type... not found." | tee -a configure.log
+  fi
+fi
+
+echo >> configure.log
+
+# check for large file support, and if none, check for fseeko()
+cat > $test.c <<EOF
+#include <sys/types.h>
+off64_t dummy = 0;
+EOF
+if try $CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c; then
+  CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1"
+  SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1"
+  ALL="${ALL} all64"
+  TEST="${TEST} test64"
+  echo "Checking for off64_t... Yes." | tee -a configure.log
+  echo "Checking for fseeko... Yes." | tee -a configure.log
+else
+  echo "Checking for off64_t... No." | tee -a configure.log
+  echo >> configure.log
+  cat > $test.c <<EOF
+#include <stdio.h>
+int main(void) {
+  fseeko(NULL, 0, 0);
+  return 0;
+}
+EOF
+  if try $CC $CFLAGS -o $test $test.c; then
+    echo "Checking for fseeko... Yes." | tee -a configure.log
+  else
+    CFLAGS="${CFLAGS} -DNO_FSEEKO"
+    SFLAGS="${SFLAGS} -DNO_FSEEKO"
+    echo "Checking for fseeko... No." | tee -a configure.log
+  fi
+fi
+
+echo >> configure.log
+
+# check for strerror() for use by gz* functions
+cat > $test.c <<EOF
+#include <string.h>
+#include <errno.h>
+int main() { return strlen(strerror(errno)); }
+EOF
+if try $CC $CFLAGS -o $test $test.c; then
+  echo "Checking for strerror... Yes." | tee -a configure.log
+else
+  CFLAGS="${CFLAGS} -DNO_STRERROR"
+  SFLAGS="${SFLAGS} -DNO_STRERROR"
+  echo "Checking for strerror... No." | tee -a configure.log
+fi
+
+# copy clean zconf.h for subsequent edits
+cp -p ${SRCDIR}zconf.h.in zconf.h
+
+echo >> configure.log
+
+# check for unistd.h and save result in zconf.h
+cat > $test.c <<EOF
+#include <unistd.h>
+int main() { return 0; }
+EOF
+if try $CC -c $CFLAGS $test.c; then
+  sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H\(.*\) may be/ 1\1 was/" > zconf.temp.h
+  mv zconf.temp.h zconf.h
+  echo "Checking for unistd.h... Yes." | tee -a configure.log
+else
+  echo "Checking for unistd.h... No." | tee -a configure.log
+fi
+
+echo >> configure.log
+
+# check for stdarg.h and save result in zconf.h
+cat > $test.c <<EOF
+#include <stdarg.h>
+int main() { return 0; }
+EOF
+if try $CC -c $CFLAGS $test.c; then
+  sed < zconf.h "/^#ifdef HAVE_STDARG_H.* may be/s/def HAVE_STDARG_H\(.*\) may be/ 1\1 was/" > zconf.temp.h
+  mv zconf.temp.h zconf.h
+  echo "Checking for stdarg.h... Yes." | tee -a configure.log
+else
+  echo "Checking for stdarg.h... No." | tee -a configure.log
+fi
+
+# if the z_ prefix was requested, save that in zconf.h
+if test $zprefix -eq 1; then
+  sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX\(.*\) may be/ 1\1 was/" > zconf.temp.h
+  mv zconf.temp.h zconf.h
+  echo >> configure.log
+  echo "Using z_ prefix on all symbols." | tee -a configure.log
+fi
+
+# if --solo compilation was requested, save that in zconf.h and remove gz stuff from object lists
+if test $solo -eq 1; then
+  sed '/#define ZCONF_H/a\
+#define Z_SOLO
+
+' < zconf.h > zconf.temp.h
+  mv zconf.temp.h zconf.h
+OBJC='$(OBJZ)'
+PIC_OBJC='$(PIC_OBJZ)'
+fi
+
+# if code coverage testing was requested, use older gcc if defined, e.g. "gcc-4.2" on Mac OS X
+if test $cover -eq 1; then
+  CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage"
+  if test -n "$GCC_CLASSIC"; then
+    CC=$GCC_CLASSIC
+  fi
+fi
+
+echo >> configure.log
+
+# conduct a series of tests to resolve eight possible cases of using "vs" or "s" printf functions
+# (using stdarg or not), with or without "n" (proving size of buffer), and with or without a
+# return value.  The most secure result is vsnprintf() with a return value.  snprintf() with a
+# return value is secure as well, but then gzprintf() will be limited to 20 arguments.
+cat > $test.c <<EOF
+#include <stdio.h>
+#include <stdarg.h>
+#include "zconf.h"
+int main()
+{
+#ifndef STDC
+  choke me
+#endif
+  return 0;
+}
+EOF
+if try $CC -c $CFLAGS $test.c; then
+  echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()." | tee -a configure.log
+
+  echo >> configure.log
+  cat > $test.c <<EOF
+#include <stdio.h>
+#include <stdarg.h>
+int mytest(const char *fmt, ...)
+{
+  char buf[20];
+  va_list ap;
+  va_start(ap, fmt);
+  vsnprintf(buf, sizeof(buf), fmt, ap);
+  va_end(ap);
+  return 0;
+}
+int main()
+{
+  return (mytest("Hello%d\n", 1));
+}
+EOF
+  if try $CC $CFLAGS -o $test $test.c; then
+    echo "Checking for vsnprintf() in stdio.h... Yes." | tee -a configure.log
+
+    echo >> configure.log
+    cat >$test.c <<EOF
+#include <stdio.h>
+#include <stdarg.h>
+int mytest(const char *fmt, ...)
+{
+  int n;
+  char buf[20];
+  va_list ap;
+  va_start(ap, fmt);
+  n = vsnprintf(buf, sizeof(buf), fmt, ap);
+  va_end(ap);
+  return n;
+}
+int main()
+{
+  return (mytest("Hello%d\n", 1));
+}
+EOF
+
+    if try $CC -c $CFLAGS $test.c; then
+      echo "Checking for return value of vsnprintf()... Yes." | tee -a configure.log
+    else
+      CFLAGS="$CFLAGS -DHAS_vsnprintf_void"
+      SFLAGS="$SFLAGS -DHAS_vsnprintf_void"
+      echo "Checking for return value of vsnprintf()... No." | tee -a configure.log
+      echo "  WARNING: apparently vsnprintf() does not return a value. zlib" | tee -a configure.log
+      echo "  can build but will be open to possible string-format security" | tee -a configure.log
+      echo "  vulnerabilities." | tee -a configure.log
+    fi
+  else
+    CFLAGS="$CFLAGS -DNO_vsnprintf"
+    SFLAGS="$SFLAGS -DNO_vsnprintf"
+    echo "Checking for vsnprintf() in stdio.h... No." | tee -a configure.log
+    echo "  WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" | tee -a configure.log
+    echo "  can build but will be open to possible buffer-overflow security" | tee -a configure.log
+    echo "  vulnerabilities." | tee -a configure.log
+
+    echo >> configure.log
+    cat >$test.c <<EOF
+#include <stdio.h>
+#include <stdarg.h>
+int mytest(const char *fmt, ...)
+{
+  int n;
+  char buf[20];
+  va_list ap;
+  va_start(ap, fmt);
+  n = vsprintf(buf, fmt, ap);
+  va_end(ap);
+  return n;
+}
+int main()
+{
+  return (mytest("Hello%d\n", 1));
+}
+EOF
+
+    if try $CC -c $CFLAGS $test.c; then
+      echo "Checking for return value of vsprintf()... Yes." | tee -a configure.log
+    else
+      CFLAGS="$CFLAGS -DHAS_vsprintf_void"
+      SFLAGS="$SFLAGS -DHAS_vsprintf_void"
+      echo "Checking for return value of vsprintf()... No." | tee -a configure.log
+      echo "  WARNING: apparently vsprintf() does not return a value. zlib" | tee -a configure.log
+      echo "  can build but will be open to possible string-format security" | tee -a configure.log
+      echo "  vulnerabilities." | tee -a configure.log
+    fi
+  fi
+else
+  echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." | tee -a configure.log
+
+  echo >> configure.log
+  cat >$test.c <<EOF
+#include <stdio.h>
+int mytest()
+{
+  char buf[20];
+  snprintf(buf, sizeof(buf), "%s", "foo");
+  return 0;
+}
+int main()
+{
+  return (mytest());
+}
+EOF
+
+  if try $CC $CFLAGS -o $test $test.c; then
+    echo "Checking for snprintf() in stdio.h... Yes." | tee -a configure.log
+
+    echo >> configure.log
+    cat >$test.c <<EOF
+#include <stdio.h>
+int mytest()
+{
+  char buf[20];
+  return snprintf(buf, sizeof(buf), "%s", "foo");
+}
+int main()
+{
+  return (mytest());
+}
+EOF
+
+    if try $CC -c $CFLAGS $test.c; then
+      echo "Checking for return value of snprintf()... Yes." | tee -a configure.log
+    else
+      CFLAGS="$CFLAGS -DHAS_snprintf_void"
+      SFLAGS="$SFLAGS -DHAS_snprintf_void"
+      echo "Checking for return value of snprintf()... No." | tee -a configure.log
+      echo "  WARNING: apparently snprintf() does not return a value. zlib" | tee -a configure.log
+      echo "  can build but will be open to possible string-format security" | tee -a configure.log
+      echo "  vulnerabilities." | tee -a configure.log
+    fi
+  else
+    CFLAGS="$CFLAGS -DNO_snprintf"
+    SFLAGS="$SFLAGS -DNO_snprintf"
+    echo "Checking for snprintf() in stdio.h... No." | tee -a configure.log
+    echo "  WARNING: snprintf() not found, falling back to sprintf(). zlib" | tee -a configure.log
+    echo "  can build but will be open to possible buffer-overflow security" | tee -a configure.log
+    echo "  vulnerabilities." | tee -a configure.log
+
+    echo >> configure.log
+    cat >$test.c <<EOF
+#include <stdio.h>
+int mytest()
+{
+  char buf[20];
+  return sprintf(buf, "%s", "foo");
+}
+int main()
+{
+  return (mytest());
+}
+EOF
+
+    if try $CC -c $CFLAGS $test.c; then
+      echo "Checking for return value of sprintf()... Yes." | tee -a configure.log
+    else
+      CFLAGS="$CFLAGS -DHAS_sprintf_void"
+      SFLAGS="$SFLAGS -DHAS_sprintf_void"
+      echo "Checking for return value of sprintf()... No." | tee -a configure.log
+      echo "  WARNING: apparently sprintf() does not return a value. zlib" | tee -a configure.log
+      echo "  can build but will be open to possible string-format security" | tee -a configure.log
+      echo "  vulnerabilities." | tee -a configure.log
+    fi
+  fi
+fi
+
+# see if we can hide zlib internal symbols that are linked between separate source files
+if test "$gcc" -eq 1; then
+  echo >> configure.log
+  cat > $test.c <<EOF
+#define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
+int ZLIB_INTERNAL foo;
+int main()
+{
+  return 0;
+}
+EOF
+  if tryboth $CC -c $CFLAGS $test.c; then
+    CFLAGS="$CFLAGS -DHAVE_HIDDEN"
+    SFLAGS="$SFLAGS -DHAVE_HIDDEN"
+    echo "Checking for attribute(visibility) support... Yes." | tee -a configure.log
+  else
+    echo "Checking for attribute(visibility) support... No." | tee -a configure.log
+  fi
+fi
+
+# show the results in the log
+echo >> configure.log
+echo ALL = $ALL >> configure.log
+echo AR = $AR >> configure.log
+echo ARFLAGS = $ARFLAGS >> configure.log
+echo CC = $CC >> configure.log
+echo CFLAGS = $CFLAGS >> configure.log
+echo CPP = $CPP >> configure.log
+echo EXE = $EXE >> configure.log
+echo LDCONFIG = $LDCONFIG >> configure.log
+echo LDFLAGS = $LDFLAGS >> configure.log
+echo LDSHARED = $LDSHARED >> configure.log
+echo LDSHAREDLIBC = $LDSHAREDLIBC >> configure.log
+echo OBJC = $OBJC >> configure.log
+echo PIC_OBJC = $PIC_OBJC >> configure.log
+echo RANLIB = $RANLIB >> configure.log
+echo SFLAGS = $SFLAGS >> configure.log
+echo SHAREDLIB = $SHAREDLIB >> configure.log
+echo SHAREDLIBM = $SHAREDLIBM >> configure.log
+echo SHAREDLIBV = $SHAREDLIBV >> configure.log
+echo STATICLIB = $STATICLIB >> configure.log
+echo TEST = $TEST >> configure.log
+echo VER = $VER >> configure.log
+echo SRCDIR = $SRCDIR >> configure.log
+echo exec_prefix = $exec_prefix >> configure.log
+echo includedir = $includedir >> configure.log
+echo libdir = $libdir >> configure.log
+echo mandir = $mandir >> configure.log
+echo prefix = $prefix >> configure.log
+echo sharedlibdir = $sharedlibdir >> configure.log
+echo uname = $uname >> configure.log
+
+# update Makefile with the configure results
+sed < ${SRCDIR}Makefile.in "
+/^CC *=/s#=.*#=$CC#
+/^CFLAGS *=/s#=.*#=$CFLAGS#
+/^SFLAGS *=/s#=.*#=$SFLAGS#
+/^LDFLAGS *=/s#=.*#=$LDFLAGS#
+/^LDSHARED *=/s#=.*#=$LDSHARED#
+/^CPP *=/s#=.*#=$CPP#
+/^STATICLIB *=/s#=.*#=$STATICLIB#
+/^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
+/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
+/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
+/^AR *=/s#=.*#=$AR#
+/^ARFLAGS *=/s#=.*#=$ARFLAGS#
+/^RANLIB *=/s#=.*#=$RANLIB#
+/^LDCONFIG *=/s#=.*#=$LDCONFIG#
+/^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC#
+/^EXE *=/s#=.*#=$EXE#
+/^SRCDIR *=/s#=.*#=$SRCDIR#
+/^ZINC *=/s#=.*#=$ZINC#
+/^ZINCOUT *=/s#=.*#=$ZINCOUT#
+/^prefix *=/s#=.*#=$prefix#
+/^exec_prefix *=/s#=.*#=$exec_prefix#
+/^libdir *=/s#=.*#=$libdir#
+/^sharedlibdir *=/s#=.*#=$sharedlibdir#
+/^includedir *=/s#=.*#=$includedir#
+/^mandir *=/s#=.*#=$mandir#
+/^OBJC *=/s#=.*#= $OBJC#
+/^PIC_OBJC *=/s#=.*#= $PIC_OBJC#
+/^all: */s#:.*#: $ALL#
+/^test: */s#:.*#: $TEST#
+" > Makefile
+
+# create zlib.pc with the configure results
+sed < ${SRCDIR}zlib.pc.in "
+/^CC *=/s#=.*#=$CC#
+/^CFLAGS *=/s#=.*#=$CFLAGS#
+/^CPP *=/s#=.*#=$CPP#
+/^LDSHARED *=/s#=.*#=$LDSHARED#
+/^STATICLIB *=/s#=.*#=$STATICLIB#
+/^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
+/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
+/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
+/^AR *=/s#=.*#=$AR#
+/^ARFLAGS *=/s#=.*#=$ARFLAGS#
+/^RANLIB *=/s#=.*#=$RANLIB#
+/^EXE *=/s#=.*#=$EXE#
+/^prefix *=/s#=.*#=$prefix#
+/^exec_prefix *=/s#=.*#=$exec_prefix#
+/^libdir *=/s#=.*#=$libdir#
+/^sharedlibdir *=/s#=.*#=$sharedlibdir#
+/^includedir *=/s#=.*#=$includedir#
+/^mandir *=/s#=.*#=$mandir#
+/^LDFLAGS *=/s#=.*#=$LDFLAGS#
+" | sed -e "
+s/\@VERSION\@/$VER/g;
+" > zlib.pc
+
+# done
+leave 0
diff --git a/compat/zlib/contrib/README.contrib b/compat/zlib/contrib/README.contrib
new file mode 100644
index 0000000..5e5f950
--- /dev/null
+++ b/compat/zlib/contrib/README.contrib
@@ -0,0 +1,57 @@
+All files under this contrib directory are UNSUPPORTED. They were
+provided by users of zlib and were not tested by the authors of zlib.
+Use at your own risk. Please contact the authors of the contributions
+for help about these, not the zlib authors. Thanks.
+
+
+ada/        by Dmitriy Anisimkov <anisimkov@yahoo.com>
+        Support for Ada
+        See http://zlib-ada.sourceforge.net/
+
+blast/      by Mark Adler <madler@alumni.caltech.edu>
+        Decompressor for output of PKWare Data Compression Library (DCL)
+
+delphi/     by Cosmin Truta <cosmint@cs.ubbcluj.ro>
+        Support for Delphi and C++ Builder
+
+dotzlib/    by Henrik Ravn <henrik@ravn.com>
+        Support for Microsoft .Net and Visual C++ .Net
+
+gcc_gvmat64/by Gilles Vollant <info@winimage.com>
+        GCC Version of x86 64-bit (AMD64 and Intel EM64t) code for x64
+        assembler to replace longest_match() and inflate_fast()
+
+infback9/   by Mark Adler <madler@alumni.caltech.edu>
+        Unsupported diffs to infback to decode the deflate64 format
+
+iostream/   by Kevin Ruland <kevin@rodin.wustl.edu>
+        A C++ I/O streams interface to the zlib gz* functions
+
+iostream2/  by Tyge Løvset <Tyge.Lovset@cmr.no>
+        Another C++ I/O streams interface
+
+iostream3/  by Ludwig Schwardt <schwardt@sun.ac.za>
+            and Kevin Ruland <kevin@rodin.wustl.edu>
+        Yet another C++ I/O streams interface
+
+minizip/    by Gilles Vollant <info@winimage.com>
+        Mini zip and unzip based on zlib
+        Includes Zip64 support by Mathias Svensson <mathias@result42.com>
+        See http://www.winimage.com/zLibDll/minizip.html
+
+pascal/     by Bob Dellaca <bobdl@xtra.co.nz> et al.
+        Support for Pascal
+
+puff/       by Mark Adler <madler@alumni.caltech.edu>
+        Small, low memory usage inflate.  Also serves to provide an
+        unambiguous description of the deflate format.
+
+testzlib/   by Gilles Vollant <info@winimage.com>
+        Example of the use of zlib
+
+untgz/      by Pedro A. Aranda Gutierrez <paag@tid.es>
+        A very simple tar.gz file extractor using zlib
+
+vstudio/    by Gilles Vollant <info@winimage.com>
+        Building a minizip-enhanced zlib with Microsoft Visual Studio
+        Includes vc11 from kreuzerkrieg and vc12 from davispuh
diff --git a/compat/zlib/contrib/ada/buffer_demo.adb b/compat/zlib/contrib/ada/buffer_demo.adb
new file mode 100644
index 0000000..46b8638
--- /dev/null
+++ b/compat/zlib/contrib/ada/buffer_demo.adb
@@ -0,0 +1,106 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2004 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+--
+--  $Id: buffer_demo.adb,v 1.3 2004/09/06 06:55:35 vagul Exp $
+
+--  This demo program provided by Dr Steve Sangwine <sjs@essex.ac.uk>
+--
+--  Demonstration of a problem with Zlib-Ada (already fixed) when a buffer
+--  of exactly the correct size is used for decompressed data, and the last
+--  few bytes passed in to Zlib are checksum bytes.
+
+--  This program compresses a string of text, and then decompresses the
+--  compressed text into a buffer of the same size as the original text.
+
+with Ada.Streams; use Ada.Streams;
+with Ada.Text_IO;
+
+with ZLib; use ZLib;
+
+procedure Buffer_Demo is
+   EOL  : Character renames ASCII.LF;
+   Text : constant String
+     := "Four score and seven years ago our fathers brought forth," & EOL &
+        "upon this continent, a new nation, conceived in liberty," & EOL &
+        "and dedicated to the proposition that `all men are created equal'.";
+
+   Source : Stream_Element_Array (1 .. Text'Length);
+   for Source'Address use Text'Address;
+
+begin
+   Ada.Text_IO.Put (Text);
+   Ada.Text_IO.New_Line;
+   Ada.Text_IO.Put_Line
+     ("Uncompressed size : " & Positive'Image (Text'Length) & " bytes");
+
+   declare
+      Compressed_Data : Stream_Element_Array (1 .. Text'Length);
+      L               : Stream_Element_Offset;
+   begin
+      Compress : declare
+         Compressor : Filter_Type;
+         I : Stream_Element_Offset;
+      begin
+         Deflate_Init (Compressor);
+
+         --  Compress the whole of T at once.
+
+         Translate (Compressor, Source, I, Compressed_Data, L, Finish);
+         pragma Assert (I = Source'Last);
+
+         Close (Compressor);
+
+         Ada.Text_IO.Put_Line
+           ("Compressed size :   "
+            & Stream_Element_Offset'Image (L) & " bytes");
+      end Compress;
+
+      --  Now we decompress the data, passing short blocks of data to Zlib
+      --  (because this demonstrates the problem - the last block passed will
+      --  contain checksum information and there will be no output, only a
+      --  check inside Zlib that the checksum is correct).
+
+      Decompress : declare
+         Decompressor : Filter_Type;
+
+         Uncompressed_Data : Stream_Element_Array (1 .. Text'Length);
+
+         Block_Size : constant := 4;
+         --  This makes sure that the last block contains
+         --  only Adler checksum data.
+
+         P : Stream_Element_Offset := Compressed_Data'First - 1;
+         O : Stream_Element_Offset;
+      begin
+         Inflate_Init (Decompressor);
+
+         loop
+            Translate
+              (Decompressor,
+               Compressed_Data
+                 (P + 1 .. Stream_Element_Offset'Min (P + Block_Size, L)),
+               P,
+               Uncompressed_Data
+                 (Total_Out (Decompressor) + 1 .. Uncompressed_Data'Last),
+               O,
+               No_Flush);
+
+               Ada.Text_IO.Put_Line
+                 ("Total in : " & Count'Image (Total_In (Decompressor)) &
+                  ", out : " & Count'Image (Total_Out (Decompressor)));
+
+               exit when P = L;
+         end loop;
+
+         Ada.Text_IO.New_Line;
+         Ada.Text_IO.Put_Line
+           ("Decompressed text matches original text : "
+             & Boolean'Image (Uncompressed_Data = Source));
+      end Decompress;
+   end;
+end Buffer_Demo;
diff --git a/compat/zlib/contrib/ada/mtest.adb b/compat/zlib/contrib/ada/mtest.adb
new file mode 100644
index 0000000..c4dfd08
--- /dev/null
+++ b/compat/zlib/contrib/ada/mtest.adb
@@ -0,0 +1,156 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+--  Continuous test for ZLib multithreading. If the test would fail
+--  we should provide thread safe allocation routines for the Z_Stream.
+--
+--  $Id: mtest.adb,v 1.4 2004/07/23 07:49:54 vagul Exp $
+
+with ZLib;
+with Ada.Streams;
+with Ada.Numerics.Discrete_Random;
+with Ada.Text_IO;
+with Ada.Exceptions;
+with Ada.Task_Identification;
+
+procedure MTest is
+   use Ada.Streams;
+   use ZLib;
+
+   Stop : Boolean := False;
+
+   pragma Atomic (Stop);
+
+   subtype Visible_Symbols is Stream_Element range 16#20# .. 16#7E#;
+
+   package Random_Elements is
+      new Ada.Numerics.Discrete_Random (Visible_Symbols);
+
+   task type Test_Task;
+
+   task body Test_Task is
+      Buffer : Stream_Element_Array (1 .. 100_000);
+      Gen : Random_Elements.Generator;
+
+      Buffer_First  : Stream_Element_Offset;
+      Compare_First : Stream_Element_Offset;
+
+      Deflate : Filter_Type;
+      Inflate : Filter_Type;
+
+      procedure Further (Item : in Stream_Element_Array);
+
+      procedure Read_Buffer
+        (Item : out Ada.Streams.Stream_Element_Array;
+         Last : out Ada.Streams.Stream_Element_Offset);
+
+      -------------
+      -- Further --
+      -------------
+
+      procedure Further (Item : in Stream_Element_Array) is
+
+         procedure Compare (Item : in Stream_Element_Array);
+
+         -------------
+         -- Compare --
+         -------------
+
+         procedure Compare (Item : in Stream_Element_Array) is
+            Next_First : Stream_Element_Offset := Compare_First + Item'Length;
+         begin
+            if Buffer (Compare_First .. Next_First - 1) /= Item then
+               raise Program_Error;
+            end if;
+
+            Compare_First := Next_First;
+         end Compare;
+
+         procedure Compare_Write is new ZLib.Write (Write => Compare);
+      begin
+         Compare_Write (Inflate, Item, No_Flush);
+      end Further;
+
+      -----------------
+      -- Read_Buffer --
+      -----------------
+
+      procedure Read_Buffer
+        (Item : out Ada.Streams.Stream_Element_Array;
+         Last : out Ada.Streams.Stream_Element_Offset)
+      is
+         Buff_Diff   : Stream_Element_Offset := Buffer'Last - Buffer_First;
+         Next_First : Stream_Element_Offset;
+      begin
+         if Item'Length <= Buff_Diff then
+            Last := Item'Last;
+
+            Next_First := Buffer_First + Item'Length;
+
+            Item := Buffer (Buffer_First .. Next_First - 1);
+
+            Buffer_First := Next_First;
+         else
+            Last := Item'First + Buff_Diff;
+            Item (Item'First .. Last) := Buffer (Buffer_First .. Buffer'Last);
+            Buffer_First := Buffer'Last + 1;
+         end if;
+      end Read_Buffer;
+
+      procedure Translate is new Generic_Translate
+                                   (Data_In  => Read_Buffer,
+                                    Data_Out => Further);
+
+   begin
+      Random_Elements.Reset (Gen);
+
+      Buffer := (others => 20);
+
+      Main : loop
+         for J in Buffer'Range loop
+            Buffer (J) := Random_Elements.Random (Gen);
+
+            Deflate_Init (Deflate);
+            Inflate_Init (Inflate);
+
+            Buffer_First  := Buffer'First;
+            Compare_First := Buffer'First;
+
+            Translate (Deflate);
+
+            if Compare_First /= Buffer'Last + 1 then
+               raise Program_Error;
+            end if;
+
+            Ada.Text_IO.Put_Line
+              (Ada.Task_Identification.Image
+                 (Ada.Task_Identification.Current_Task)
+               & Stream_Element_Offset'Image (J)
+               & ZLib.Count'Image (Total_Out (Deflate)));
+
+            Close (Deflate);
+            Close (Inflate);
+
+            exit Main when Stop;
+         end loop;
+      end loop Main;
+   exception
+      when E : others =>
+         Ada.Text_IO.Put_Line (Ada.Exceptions.Exception_Information (E));
+         Stop := True;
+   end Test_Task;
+
+   Test : array (1 .. 4) of Test_Task;
+
+   pragma Unreferenced (Test);
+
+   Dummy : Character;
+
+begin
+   Ada.Text_IO.Get_Immediate (Dummy);
+   Stop := True;
+end MTest;
diff --git a/compat/zlib/contrib/ada/read.adb b/compat/zlib/contrib/ada/read.adb
new file mode 100644
index 0000000..1f2efbf
--- /dev/null
+++ b/compat/zlib/contrib/ada/read.adb
@@ -0,0 +1,156 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: read.adb,v 1.8 2004/05/31 10:53:40 vagul Exp $
+
+--  Test/demo program for the generic read interface.
+
+with Ada.Numerics.Discrete_Random;
+with Ada.Streams;
+with Ada.Text_IO;
+
+with ZLib;
+
+procedure Read is
+
+   use Ada.Streams;
+
+   ------------------------------------
+   --  Test configuration parameters --
+   ------------------------------------
+
+   File_Size   : Stream_Element_Offset := 100_000;
+
+   Continuous  : constant Boolean          := False;
+   --  If this constant is True, the test would be repeated again and again,
+   --  with increment File_Size for every iteration.
+
+   Header      : constant ZLib.Header_Type := ZLib.Default;
+   --  Do not use Header other than Default in ZLib versions 1.1.4 and older.
+
+   Init_Random : constant := 8;
+   --  We are using the same random sequence, in case of we catch bug,
+   --  so we would be able to reproduce it.
+
+   -- End --
+
+   Pack_Size : Stream_Element_Offset;
+   Offset    : Stream_Element_Offset;
+
+   Filter     : ZLib.Filter_Type;
+
+   subtype Visible_Symbols
+      is Stream_Element range 16#20# .. 16#7E#;
+
+   package Random_Elements is new
+      Ada.Numerics.Discrete_Random (Visible_Symbols);
+
+   Gen : Random_Elements.Generator;
+   Period  : constant Stream_Element_Offset := 200;
+   --  Period constant variable for random generator not to be very random.
+   --  Bigger period, harder random.
+
+   Read_Buffer : Stream_Element_Array (1 .. 2048);
+   Read_First  : Stream_Element_Offset;
+   Read_Last   : Stream_Element_Offset;
+
+   procedure Reset;
+
+   procedure Read
+     (Item : out Stream_Element_Array;
+      Last : out Stream_Element_Offset);
+   --  this procedure is for generic instantiation of
+   --  ZLib.Read
+   --  reading data from the File_In.
+
+   procedure Read is new ZLib.Read
+                           (Read,
+                            Read_Buffer,
+                            Rest_First => Read_First,
+                            Rest_Last  => Read_Last);
+
+   ----------
+   -- Read --
+   ----------
+
+   procedure Read
+     (Item : out Stream_Element_Array;
+      Last : out Stream_Element_Offset) is
+   begin
+      Last := Stream_Element_Offset'Min
+               (Item'Last,
+                Item'First + File_Size - Offset);
+
+      for J in Item'First .. Last loop
+         if J < Item'First + Period then
+            Item (J) := Random_Elements.Random (Gen);
+         else
+            Item (J) := Item (J - Period);
+         end if;
+
+         Offset   := Offset + 1;
+      end loop;
+   end Read;
+
+   -----------
+   -- Reset --
+   -----------
+
+   procedure Reset is
+   begin
+      Random_Elements.Reset (Gen, Init_Random);
+      Pack_Size := 0;
+      Offset := 1;
+      Read_First := Read_Buffer'Last + 1;
+      Read_Last  := Read_Buffer'Last;
+   end Reset;
+
+begin
+   Ada.Text_IO.Put_Line ("ZLib " & ZLib.Version);
+
+   loop
+      for Level in ZLib.Compression_Level'Range loop
+
+         Ada.Text_IO.Put ("Level ="
+            & ZLib.Compression_Level'Image (Level));
+
+         --  Deflate using generic instantiation.
+
+         ZLib.Deflate_Init
+               (Filter,
+                Level,
+                Header => Header);
+
+         Reset;
+
+         Ada.Text_IO.Put
+           (Stream_Element_Offset'Image (File_Size) & " ->");
+
+         loop
+            declare
+               Buffer : Stream_Element_Array (1 .. 1024);
+               Last   : Stream_Element_Offset;
+            begin
+               Read (Filter, Buffer, Last);
+
+               Pack_Size := Pack_Size + Last - Buffer'First + 1;
+
+               exit when Last < Buffer'Last;
+            end;
+         end loop;
+
+         Ada.Text_IO.Put_Line (Stream_Element_Offset'Image (Pack_Size));
+
+         ZLib.Close (Filter);
+      end loop;
+
+      exit when not Continuous;
+
+      File_Size := File_Size + 1;
+   end loop;
+end Read;
diff --git a/compat/zlib/contrib/ada/readme.txt b/compat/zlib/contrib/ada/readme.txt
new file mode 100644
index 0000000..efdd639
--- /dev/null
+++ b/compat/zlib/contrib/ada/readme.txt
@@ -0,0 +1,65 @@
+                        ZLib for Ada thick binding (ZLib.Ada)
+                        Release 1.3
+
+ZLib.Ada is a thick binding interface to the popular ZLib data
+compression library, available at http://www.gzip.org/zlib/.
+It provides Ada-style access to the ZLib C library.
+
+
+        Here are the main changes since ZLib.Ada 1.2:
+
+- Attention: ZLib.Read generic routine have a initialization requirement
+  for Read_Last parameter now. It is a bit incompatible with previous version,
+  but extends functionality, we could use new parameters Allow_Read_Some and
+  Flush now.
+
+- Added Is_Open routines to ZLib and ZLib.Streams packages.
+
+- Add pragma Assert to check Stream_Element is 8 bit.
+
+- Fix extraction to buffer with exact known decompressed size. Error reported by
+  Steve Sangwine.
+
+- Fix definition of ULong (changed to unsigned_long), fix regression on 64 bits
+  computers. Patch provided by Pascal Obry.
+
+- Add Status_Error exception definition.
+
+- Add pragma Assertion that Ada.Streams.Stream_Element size is 8 bit.
+
+
+        How to build ZLib.Ada under GNAT
+
+You should have the ZLib library already build on your computer, before
+building ZLib.Ada. Make the directory of ZLib.Ada sources current and
+issue the command:
+
+  gnatmake test -largs -L<directory where libz.a is> -lz
+
+Or use the GNAT project file build for GNAT 3.15 or later:
+
+  gnatmake -Pzlib.gpr -L<directory where libz.a is>
+
+
+        How to build ZLib.Ada under Aonix ObjectAda for Win32 7.2.2
+
+1. Make a project with all *.ads and *.adb files from the distribution.
+2. Build the libz.a library from the ZLib C sources.
+3. Rename libz.a to z.lib.
+4. Add the library z.lib to the project.
+5. Add the libc.lib library from the ObjectAda distribution to the project.
+6. Build the executable using test.adb as a main procedure.
+
+
+        How to use ZLib.Ada
+
+The source files test.adb and read.adb are small demo programs that show
+the main functionality of ZLib.Ada.
+
+The routines from the package specifications are commented.
+
+
+Homepage: http://zlib-ada.sourceforge.net/
+Author: Dmitriy Anisimkov <anisimkov@yahoo.com>
+
+Contributors: Pascal Obry <pascal@obry.org>, Steve Sangwine <sjs@essex.ac.uk>
diff --git a/compat/zlib/contrib/ada/test.adb b/compat/zlib/contrib/ada/test.adb
new file mode 100644
index 0000000..8b35031
--- /dev/null
+++ b/compat/zlib/contrib/ada/test.adb
@@ -0,0 +1,463 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: test.adb,v 1.17 2003/08/12 12:13:30 vagul Exp $
+
+--  The program has a few aims.
+--  1. Test ZLib.Ada95 thick binding functionality.
+--  2. Show the example of use main functionality of the ZLib.Ada95 binding.
+--  3. Build this program automatically compile all ZLib.Ada95 packages under
+--     GNAT Ada95 compiler.
+
+with ZLib.Streams;
+with Ada.Streams.Stream_IO;
+with Ada.Numerics.Discrete_Random;
+
+with Ada.Text_IO;
+
+with Ada.Calendar;
+
+procedure Test is
+
+   use Ada.Streams;
+   use Stream_IO;
+
+   ------------------------------------
+   --  Test configuration parameters --
+   ------------------------------------
+
+   File_Size   : Count   := 100_000;
+   Continuous  : constant Boolean := False;
+
+   Header      : constant ZLib.Header_Type := ZLib.Default;
+                                              --  ZLib.None;
+                                              --  ZLib.Auto;
+                                              --  ZLib.GZip;
+   --  Do not use Header other then Default in ZLib versions 1.1.4
+   --  and older.
+
+   Strategy    : constant ZLib.Strategy_Type := ZLib.Default_Strategy;
+   Init_Random : constant := 10;
+
+   -- End --
+
+   In_File_Name  : constant String := "testzlib.in";
+   --  Name of the input file
+
+   Z_File_Name   : constant String := "testzlib.zlb";
+   --  Name of the compressed file.
+
+   Out_File_Name : constant String := "testzlib.out";
+   --  Name of the decompressed file.
+
+   File_In   : File_Type;
+   File_Out  : File_Type;
+   File_Back : File_Type;
+   File_Z    : ZLib.Streams.Stream_Type;
+
+   Filter : ZLib.Filter_Type;
+
+   Time_Stamp : Ada.Calendar.Time;
+
+   procedure Generate_File;
+   --  Generate file of specified size with some random data.
+   --  The random data is repeatable, for the good compression.
+
+   procedure Compare_Streams
+     (Left, Right : in out Root_Stream_Type'Class);
+   --  The procedure comparing data in 2 streams.
+   --  It is for compare data before and after compression/decompression.
+
+   procedure Compare_Files (Left, Right : String);
+   --  Compare files. Based on the Compare_Streams.
+
+   procedure Copy_Streams
+     (Source, Target : in out Root_Stream_Type'Class;
+      Buffer_Size    : in     Stream_Element_Offset := 1024);
+   --  Copying data from one stream to another. It is for test stream
+   --  interface of the library.
+
+   procedure Data_In
+     (Item : out Stream_Element_Array;
+      Last : out Stream_Element_Offset);
+   --  this procedure is for generic instantiation of
+   --  ZLib.Generic_Translate.
+   --  reading data from the File_In.
+
+   procedure Data_Out (Item : in Stream_Element_Array);
+   --  this procedure is for generic instantiation of
+   --  ZLib.Generic_Translate.
+   --  writing data to the File_Out.
+
+   procedure Stamp;
+   --  Store the timestamp to the local variable.
+
+   procedure Print_Statistic (Msg : String; Data_Size : ZLib.Count);
+   --  Print the time statistic with the message.
+
+   procedure Translate is new ZLib.Generic_Translate
+                                (Data_In  => Data_In,
+                                 Data_Out => Data_Out);
+   --  This procedure is moving data from File_In to File_Out
+   --  with compression or decompression, depend on initialization of
+   --  Filter parameter.
+
+   -------------------
+   -- Compare_Files --
+   -------------------
+
+   procedure Compare_Files (Left, Right : String) is
+      Left_File, Right_File : File_Type;
+   begin
+      Open (Left_File, In_File, Left);
+      Open (Right_File, In_File, Right);
+      Compare_Streams (Stream (Left_File).all, Stream (Right_File).all);
+      Close (Left_File);
+      Close (Right_File);
+   end Compare_Files;
+
+   ---------------------
+   -- Compare_Streams --
+   ---------------------
+
+   procedure Compare_Streams
+     (Left, Right : in out Ada.Streams.Root_Stream_Type'Class)
+   is
+      Left_Buffer, Right_Buffer : Stream_Element_Array (0 .. 16#FFF#);
+      Left_Last, Right_Last : Stream_Element_Offset;
+   begin
+      loop
+         Read (Left, Left_Buffer, Left_Last);
+         Read (Right, Right_Buffer, Right_Last);
+
+         if Left_Last /= Right_Last then
+            Ada.Text_IO.Put_Line ("Compare error :"
+              & Stream_Element_Offset'Image (Left_Last)
+              & " /= "
+              & Stream_Element_Offset'Image (Right_Last));
+
+            raise Constraint_Error;
+
+         elsif Left_Buffer (0 .. Left_Last)
+               /= Right_Buffer (0 .. Right_Last)
+         then
+            Ada.Text_IO.Put_Line ("ERROR: IN and OUT files is not equal.");
+            raise Constraint_Error;
+
+         end if;
+
+         exit when Left_Last < Left_Buffer'Last;
+      end loop;
+   end Compare_Streams;
+
+   ------------------
+   -- Copy_Streams --
+   ------------------
+
+   procedure Copy_Streams
+     (Source, Target : in out Ada.Streams.Root_Stream_Type'Class;
+      Buffer_Size    : in     Stream_Element_Offset := 1024)
+   is
+      Buffer : Stream_Element_Array (1 .. Buffer_Size);
+      Last   : Stream_Element_Offset;
+   begin
+      loop
+         Read  (Source, Buffer, Last);
+         Write (Target, Buffer (1 .. Last));
+
+         exit when Last < Buffer'Last;
+      end loop;
+   end Copy_Streams;
+
+   -------------
+   -- Data_In --
+   -------------
+
+   procedure Data_In
+     (Item : out Stream_Element_Array;
+      Last : out Stream_Element_Offset) is
+   begin
+      Read (File_In, Item, Last);
+   end Data_In;
+
+   --------------
+   -- Data_Out --
+   --------------
+
+   procedure Data_Out (Item : in Stream_Element_Array) is
+   begin
+      Write (File_Out, Item);
+   end Data_Out;
+
+   -------------------
+   -- Generate_File --
+   -------------------
+
+   procedure Generate_File is
+      subtype Visible_Symbols is Stream_Element range 16#20# .. 16#7E#;
+
+      package Random_Elements is
+         new Ada.Numerics.Discrete_Random (Visible_Symbols);
+
+      Gen    : Random_Elements.Generator;
+      Buffer : Stream_Element_Array := (1 .. 77 => 16#20#) & 10;
+
+      Buffer_Count : constant Count := File_Size / Buffer'Length;
+      --  Number of same buffers in the packet.
+
+      Density : constant Count := 30; --  from 0 to Buffer'Length - 2;
+
+      procedure Fill_Buffer (J, D : in Count);
+      --  Change the part of the buffer.
+
+      -----------------
+      -- Fill_Buffer --
+      -----------------
+
+      procedure Fill_Buffer (J, D : in Count) is
+      begin
+         for K in 0 .. D loop
+            Buffer
+              (Stream_Element_Offset ((J + K) mod (Buffer'Length - 1) + 1))
+             := Random_Elements.Random (Gen);
+
+         end loop;
+      end Fill_Buffer;
+
+   begin
+      Random_Elements.Reset (Gen, Init_Random);
+
+      Create (File_In, Out_File, In_File_Name);
+
+      Fill_Buffer (1, Buffer'Length - 2);
+
+      for J in 1 .. Buffer_Count loop
+         Write (File_In, Buffer);
+
+         Fill_Buffer (J, Density);
+      end loop;
+
+      --  fill remain size.
+
+      Write
+        (File_In,
+         Buffer
+           (1 .. Stream_Element_Offset
+                   (File_Size - Buffer'Length * Buffer_Count)));
+
+      Flush (File_In);
+      Close (File_In);
+   end Generate_File;
+
+   ---------------------
+   -- Print_Statistic --
+   ---------------------
+
+   procedure Print_Statistic (Msg : String; Data_Size : ZLib.Count) is
+      use Ada.Calendar;
+      use Ada.Text_IO;
+
+      package Count_IO is new Integer_IO (ZLib.Count);
+
+      Curr_Dur : Duration := Clock - Time_Stamp;
+   begin
+      Put (Msg);
+
+      Set_Col (20);
+      Ada.Text_IO.Put ("size =");
+
+      Count_IO.Put
+        (Data_Size,
+         Width => Stream_IO.Count'Image (File_Size)'Length);
+
+      Put_Line (" duration =" & Duration'Image (Curr_Dur));
+   end Print_Statistic;
+
+   -----------
+   -- Stamp --
+   -----------
+
+   procedure Stamp is
+   begin
+      Time_Stamp := Ada.Calendar.Clock;
+   end Stamp;
+
+begin
+   Ada.Text_IO.Put_Line ("ZLib " & ZLib.Version);
+
+   loop
+      Generate_File;
+
+      for Level in ZLib.Compression_Level'Range loop
+
+         Ada.Text_IO.Put_Line ("Level ="
+            & ZLib.Compression_Level'Image (Level));
+
+         --  Test generic interface.
+         Open   (File_In, In_File, In_File_Name);
+         Create (File_Out, Out_File, Z_File_Name);
+
+         Stamp;
+
+         --  Deflate using generic instantiation.
+
+         ZLib.Deflate_Init
+               (Filter   => Filter,
+                Level    => Level,
+                Strategy => Strategy,
+                Header   => Header);
+
+         Translate (Filter);
+         Print_Statistic ("Generic compress", ZLib.Total_Out (Filter));
+         ZLib.Close (Filter);
+
+         Close (File_In);
+         Close (File_Out);
+
+         Open   (File_In, In_File, Z_File_Name);
+         Create (File_Out, Out_File, Out_File_Name);
+
+         Stamp;
+
+         --  Inflate using generic instantiation.
+
+         ZLib.Inflate_Init (Filter, Header => Header);
+
+         Translate (Filter);
+         Print_Statistic ("Generic decompress", ZLib.Total_Out (Filter));
+
+         ZLib.Close (Filter);
+
+         Close (File_In);
+         Close (File_Out);
+
+         Compare_Files (In_File_Name, Out_File_Name);
+
+         --  Test stream interface.
+
+         --  Compress to the back stream.
+
+         Open   (File_In, In_File, In_File_Name);
+         Create (File_Back, Out_File, Z_File_Name);
+
+         Stamp;
+
+         ZLib.Streams.Create
+           (Stream          => File_Z,
+            Mode            => ZLib.Streams.Out_Stream,
+            Back            => ZLib.Streams.Stream_Access
+                                 (Stream (File_Back)),
+            Back_Compressed => True,
+            Level           => Level,
+            Strategy        => Strategy,
+            Header          => Header);
+
+         Copy_Streams
+           (Source => Stream (File_In).all,
+            Target => File_Z);
+
+         --  Flushing internal buffers to the back stream.
+
+         ZLib.Streams.Flush (File_Z, ZLib.Finish);
+
+         Print_Statistic ("Write compress",
+                          ZLib.Streams.Write_Total_Out (File_Z));
+
+         ZLib.Streams.Close (File_Z);
+
+         Close (File_In);
+         Close (File_Back);
+
+         --  Compare reading from original file and from
+         --  decompression stream.
+
+         Open (File_In,   In_File, In_File_Name);
+         Open (File_Back, In_File, Z_File_Name);
+
+         ZLib.Streams.Create
+           (Stream          => File_Z,
+            Mode            => ZLib.Streams.In_Stream,
+            Back            => ZLib.Streams.Stream_Access
+                                 (Stream (File_Back)),
+            Back_Compressed => True,
+            Header          => Header);
+
+         Stamp;
+         Compare_Streams (Stream (File_In).all, File_Z);
+
+         Print_Statistic ("Read decompress",
+                          ZLib.Streams.Read_Total_Out (File_Z));
+
+         ZLib.Streams.Close (File_Z);
+         Close (File_In);
+         Close (File_Back);
+
+         --  Compress by reading from compression stream.
+
+         Open (File_Back, In_File, In_File_Name);
+         Create (File_Out, Out_File, Z_File_Name);
+
+         ZLib.Streams.Create
+           (Stream          => File_Z,
+            Mode            => ZLib.Streams.In_Stream,
+            Back            => ZLib.Streams.Stream_Access
+                                 (Stream (File_Back)),
+            Back_Compressed => False,
+            Level           => Level,
+            Strategy        => Strategy,
+            Header          => Header);
+
+         Stamp;
+         Copy_Streams
+           (Source => File_Z,
+            Target => Stream (File_Out).all);
+
+         Print_Statistic ("Read compress",
+                          ZLib.Streams.Read_Total_Out (File_Z));
+
+         ZLib.Streams.Close (File_Z);
+
+         Close (File_Out);
+         Close (File_Back);
+
+         --  Decompress to decompression stream.
+
+         Open   (File_In,   In_File, Z_File_Name);
+         Create (File_Back, Out_File, Out_File_Name);
+
+         ZLib.Streams.Create
+           (Stream          => File_Z,
+            Mode            => ZLib.Streams.Out_Stream,
+            Back            => ZLib.Streams.Stream_Access
+                                 (Stream (File_Back)),
+            Back_Compressed => False,
+            Header          => Header);
+
+         Stamp;
+
+         Copy_Streams
+           (Source => Stream (File_In).all,
+            Target => File_Z);
+
+         Print_Statistic ("Write decompress",
+                          ZLib.Streams.Write_Total_Out (File_Z));
+
+         ZLib.Streams.Close (File_Z);
+         Close (File_In);
+         Close (File_Back);
+
+         Compare_Files (In_File_Name, Out_File_Name);
+      end loop;
+
+      Ada.Text_IO.Put_Line (Count'Image (File_Size) & " Ok.");
+
+      exit when not Continuous;
+
+      File_Size := File_Size + 1;
+   end loop;
+end Test;
diff --git a/compat/zlib/contrib/ada/zlib-streams.adb b/compat/zlib/contrib/ada/zlib-streams.adb
new file mode 100644
index 0000000..b6497ba
--- /dev/null
+++ b/compat/zlib/contrib/ada/zlib-streams.adb
@@ -0,0 +1,225 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: zlib-streams.adb,v 1.10 2004/05/31 10:53:40 vagul Exp $
+
+with Ada.Unchecked_Deallocation;
+
+package body ZLib.Streams is
+
+   -----------
+   -- Close --
+   -----------
+
+   procedure Close (Stream : in out Stream_Type) is
+      procedure Free is new Ada.Unchecked_Deallocation
+         (Stream_Element_Array, Buffer_Access);
+   begin
+      if Stream.Mode = Out_Stream or Stream.Mode = Duplex then
+         --  We should flush the data written by the writer.
+
+         Flush (Stream, Finish);
+
+         Close (Stream.Writer);
+      end if;
+
+      if Stream.Mode = In_Stream or Stream.Mode = Duplex then
+         Close (Stream.Reader);
+         Free (Stream.Buffer);
+      end if;
+   end Close;
+
+   ------------
+   -- Create --
+   ------------
+
+   procedure Create
+     (Stream            :    out Stream_Type;
+      Mode              : in     Stream_Mode;
+      Back              : in     Stream_Access;
+      Back_Compressed   : in     Boolean;
+      Level             : in     Compression_Level := Default_Compression;
+      Strategy          : in     Strategy_Type     := Default_Strategy;
+      Header            : in     Header_Type       := Default;
+      Read_Buffer_Size  : in     Ada.Streams.Stream_Element_Offset
+                                    := Default_Buffer_Size;
+      Write_Buffer_Size : in     Ada.Streams.Stream_Element_Offset
+                                    := Default_Buffer_Size)
+   is
+
+      subtype Buffer_Subtype is Stream_Element_Array (1 .. Read_Buffer_Size);
+
+      procedure Init_Filter
+         (Filter   : in out Filter_Type;
+          Compress : in     Boolean);
+
+      -----------------
+      -- Init_Filter --
+      -----------------
+
+      procedure Init_Filter
+         (Filter   : in out Filter_Type;
+          Compress : in     Boolean) is
+      begin
+         if Compress then
+            Deflate_Init
+              (Filter, Level, Strategy, Header => Header);
+         else
+            Inflate_Init (Filter, Header => Header);
+         end if;
+      end Init_Filter;
+
+   begin
+      Stream.Back := Back;
+      Stream.Mode := Mode;
+
+      if Mode = Out_Stream or Mode = Duplex then
+         Init_Filter (Stream.Writer, Back_Compressed);
+         Stream.Buffer_Size := Write_Buffer_Size;
+      else
+         Stream.Buffer_Size := 0;
+      end if;
+
+      if Mode = In_Stream or Mode = Duplex then
+         Init_Filter (Stream.Reader, not Back_Compressed);
+
+         Stream.Buffer     := new Buffer_Subtype;
+         Stream.Rest_First := Stream.Buffer'Last + 1;
+         Stream.Rest_Last  := Stream.Buffer'Last;
+      end if;
+   end Create;
+
+   -----------
+   -- Flush --
+   -----------
+
+   procedure Flush
+     (Stream : in out Stream_Type;
+      Mode   : in     Flush_Mode := Sync_Flush)
+   is
+      Buffer : Stream_Element_Array (1 .. Stream.Buffer_Size);
+      Last   : Stream_Element_Offset;
+   begin
+      loop
+         Flush (Stream.Writer, Buffer, Last, Mode);
+
+         Ada.Streams.Write (Stream.Back.all, Buffer (1 .. Last));
+
+         exit when Last < Buffer'Last;
+      end loop;
+   end Flush;
+
+   -------------
+   -- Is_Open --
+   -------------
+
+   function Is_Open (Stream : Stream_Type) return Boolean is
+   begin
+      return Is_Open (Stream.Reader) or else Is_Open (Stream.Writer);
+   end Is_Open;
+
+   ----------
+   -- Read --
+   ----------
+
+   procedure Read
+     (Stream : in out Stream_Type;
+      Item   :    out Stream_Element_Array;
+      Last   :    out Stream_Element_Offset)
+   is
+
+      procedure Read
+        (Item : out Stream_Element_Array;
+         Last : out Stream_Element_Offset);
+
+      ----------
+      -- Read --
+      ----------
+
+      procedure Read
+        (Item : out Stream_Element_Array;
+         Last : out Stream_Element_Offset) is
+      begin
+         Ada.Streams.Read (Stream.Back.all, Item, Last);
+      end Read;
+
+      procedure Read is new ZLib.Read
+         (Read       => Read,
+          Buffer     => Stream.Buffer.all,
+          Rest_First => Stream.Rest_First,
+          Rest_Last  => Stream.Rest_Last);
+
+   begin
+      Read (Stream.Reader, Item, Last);
+   end Read;
+
+   -------------------
+   -- Read_Total_In --
+   -------------------
+
+   function Read_Total_In (Stream : in Stream_Type) return Count is
+   begin
+      return Total_In (Stream.Reader);
+   end Read_Total_In;
+
+   --------------------
+   -- Read_Total_Out --
+   --------------------
+
+   function Read_Total_Out (Stream : in Stream_Type) return Count is
+   begin
+      return Total_Out (Stream.Reader);
+   end Read_Total_Out;
+
+   -----------
+   -- Write --
+   -----------
+
+   procedure Write
+     (Stream : in out Stream_Type;
+      Item   : in     Stream_Element_Array)
+   is
+
+      procedure Write (Item : in Stream_Element_Array);
+
+      -----------
+      -- Write --
+      -----------
+
+      procedure Write (Item : in Stream_Element_Array) is
+      begin
+         Ada.Streams.Write (Stream.Back.all, Item);
+      end Write;
+
+      procedure Write is new ZLib.Write
+         (Write       => Write,
+          Buffer_Size => Stream.Buffer_Size);
+
+   begin
+      Write (Stream.Writer, Item, No_Flush);
+   end Write;
+
+   --------------------
+   -- Write_Total_In --
+   --------------------
+
+   function Write_Total_In (Stream : in Stream_Type) return Count is
+   begin
+      return Total_In (Stream.Writer);
+   end Write_Total_In;
+
+   ---------------------
+   -- Write_Total_Out --
+   ---------------------
+
+   function Write_Total_Out (Stream : in Stream_Type) return Count is
+   begin
+      return Total_Out (Stream.Writer);
+   end Write_Total_Out;
+
+end ZLib.Streams;
diff --git a/compat/zlib/contrib/ada/zlib-streams.ads b/compat/zlib/contrib/ada/zlib-streams.ads
new file mode 100644
index 0000000..af13693
--- /dev/null
+++ b/compat/zlib/contrib/ada/zlib-streams.ads
@@ -0,0 +1,114 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: zlib-streams.ads,v 1.12 2004/05/31 10:53:40 vagul Exp $
+
+package ZLib.Streams is
+
+   type Stream_Mode is (In_Stream, Out_Stream, Duplex);
+
+   type Stream_Access is access all Ada.Streams.Root_Stream_Type'Class;
+
+   type Stream_Type is
+      new Ada.Streams.Root_Stream_Type with private;
+
+   procedure Read
+     (Stream : in out Stream_Type;
+      Item   :    out Ada.Streams.Stream_Element_Array;
+      Last   :    out Ada.Streams.Stream_Element_Offset);
+
+   procedure Write
+     (Stream : in out Stream_Type;
+      Item   : in     Ada.Streams.Stream_Element_Array);
+
+   procedure Flush
+     (Stream : in out Stream_Type;
+      Mode   : in     Flush_Mode := Sync_Flush);
+   --  Flush the written data to the back stream,
+   --  all data placed to the compressor is flushing to the Back stream.
+   --  Should not be used until necessary, because it is decreasing
+   --  compression.
+
+   function Read_Total_In (Stream : in Stream_Type) return Count;
+   pragma Inline (Read_Total_In);
+   --  Return total number of bytes read from back stream so far.
+
+   function Read_Total_Out (Stream : in Stream_Type) return Count;
+   pragma Inline (Read_Total_Out);
+   --  Return total number of bytes read so far.
+
+   function Write_Total_In (Stream : in Stream_Type) return Count;
+   pragma Inline (Write_Total_In);
+   --  Return total number of bytes written so far.
+
+   function Write_Total_Out (Stream : in Stream_Type) return Count;
+   pragma Inline (Write_Total_Out);
+   --  Return total number of bytes written to the back stream.
+
+   procedure Create
+     (Stream            :    out Stream_Type;
+      Mode              : in     Stream_Mode;
+      Back              : in     Stream_Access;
+      Back_Compressed   : in     Boolean;
+      Level             : in     Compression_Level := Default_Compression;
+      Strategy          : in     Strategy_Type     := Default_Strategy;
+      Header            : in     Header_Type       := Default;
+      Read_Buffer_Size  : in     Ada.Streams.Stream_Element_Offset
+                                    := Default_Buffer_Size;
+      Write_Buffer_Size : in     Ada.Streams.Stream_Element_Offset
+                                    := Default_Buffer_Size);
+   --  Create the Compression/Decompression stream.
+   --  If mode is In_Stream then Write operation is disabled.
+   --  If mode is Out_Stream then Read operation is disabled.
+
+   --  If Back_Compressed is true then
+   --  Data written to the Stream is compressing to the Back stream
+   --  and data read from the Stream is decompressed data from the Back stream.
+
+   --  If Back_Compressed is false then
+   --  Data written to the Stream is decompressing to the Back stream
+   --  and data read from the Stream is compressed data from the Back stream.
+
+   --  !!! When the Need_Header is False ZLib-Ada is using undocumented
+   --  ZLib 1.1.4 functionality to do not create/wait for ZLib headers.
+
+   function Is_Open (Stream : Stream_Type) return Boolean;
+
+   procedure Close (Stream : in out Stream_Type);
+
+private
+
+   use Ada.Streams;
+
+   type Buffer_Access is access all Stream_Element_Array;
+
+   type Stream_Type
+     is new Root_Stream_Type with
+   record
+      Mode       : Stream_Mode;
+
+      Buffer     : Buffer_Access;
+      Rest_First : Stream_Element_Offset;
+      Rest_Last  : Stream_Element_Offset;
+      --  Buffer for Read operation.
+      --  We need to have this buffer in the record
+      --  because not all read data from back stream
+      --  could be processed during the read operation.
+
+      Buffer_Size : Stream_Element_Offset;
+      --  Buffer size for write operation.
+      --  We do not need to have this buffer
+      --  in the record because all data could be
+      --  processed in the write operation.
+
+      Back       : Stream_Access;
+      Reader     : Filter_Type;
+      Writer     : Filter_Type;
+   end record;
+
+end ZLib.Streams;
diff --git a/compat/zlib/contrib/ada/zlib-thin.adb b/compat/zlib/contrib/ada/zlib-thin.adb
new file mode 100644
index 0000000..0ca4a71
--- /dev/null
+++ b/compat/zlib/contrib/ada/zlib-thin.adb
@@ -0,0 +1,141 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: zlib-thin.adb,v 1.8 2003/12/14 18:27:31 vagul Exp $
+
+package body ZLib.Thin is
+
+   ZLIB_VERSION  : constant Chars_Ptr := zlibVersion;
+
+   Z_Stream_Size : constant Int := Z_Stream'Size / System.Storage_Unit;
+
+   --------------
+   -- Avail_In --
+   --------------
+
+   function Avail_In (Strm : in Z_Stream) return UInt is
+   begin
+      return Strm.Avail_In;
+   end Avail_In;
+
+   ---------------
+   -- Avail_Out --
+   ---------------
+
+   function Avail_Out (Strm : in Z_Stream) return UInt is
+   begin
+      return Strm.Avail_Out;
+   end Avail_Out;
+
+   ------------------
+   -- Deflate_Init --
+   ------------------
+
+   function Deflate_Init
+     (strm       : Z_Streamp;
+      level      : Int;
+      method     : Int;
+      windowBits : Int;
+      memLevel   : Int;
+      strategy   : Int)
+      return       Int is
+   begin
+      return deflateInit2
+               (strm,
+                level,
+                method,
+                windowBits,
+                memLevel,
+                strategy,
+                ZLIB_VERSION,
+                Z_Stream_Size);
+   end Deflate_Init;
+
+   ------------------
+   -- Inflate_Init --
+   ------------------
+
+   function Inflate_Init (strm : Z_Streamp; windowBits : Int) return Int is
+   begin
+      return inflateInit2 (strm, windowBits, ZLIB_VERSION, Z_Stream_Size);
+   end Inflate_Init;
+
+   ------------------------
+   -- Last_Error_Message --
+   ------------------------
+
+   function Last_Error_Message (Strm : in Z_Stream) return String is
+      use Interfaces.C.Strings;
+   begin
+      if Strm.msg = Null_Ptr then
+         return "";
+      else
+         return Value (Strm.msg);
+      end if;
+   end Last_Error_Message;
+
+   ------------
+   -- Set_In --
+   ------------
+
+   procedure Set_In
+     (Strm   : in out Z_Stream;
+      Buffer : in     Voidp;
+      Size   : in     UInt) is
+   begin
+      Strm.Next_In  := Buffer;
+      Strm.Avail_In := Size;
+   end Set_In;
+
+   ------------------
+   -- Set_Mem_Func --
+   ------------------
+
+   procedure Set_Mem_Func
+     (Strm   : in out Z_Stream;
+      Opaque : in     Voidp;
+      Alloc  : in     alloc_func;
+      Free   : in     free_func) is
+   begin
+      Strm.opaque := Opaque;
+      Strm.zalloc := Alloc;
+      Strm.zfree  := Free;
+   end Set_Mem_Func;
+
+   -------------
+   -- Set_Out --
+   -------------
+
+   procedure Set_Out
+     (Strm   : in out Z_Stream;
+      Buffer : in     Voidp;
+      Size   : in     UInt) is
+   begin
+      Strm.Next_Out  := Buffer;
+      Strm.Avail_Out := Size;
+   end Set_Out;
+
+   --------------
+   -- Total_In --
+   --------------
+
+   function Total_In (Strm : in Z_Stream) return ULong is
+   begin
+      return Strm.Total_In;
+   end Total_In;
+
+   ---------------
+   -- Total_Out --
+   ---------------
+
+   function Total_Out (Strm : in Z_Stream) return ULong is
+   begin
+      return Strm.Total_Out;
+   end Total_Out;
+
+end ZLib.Thin;
diff --git a/compat/zlib/contrib/ada/zlib-thin.ads b/compat/zlib/contrib/ada/zlib-thin.ads
new file mode 100644
index 0000000..810173c
--- /dev/null
+++ b/compat/zlib/contrib/ada/zlib-thin.ads
@@ -0,0 +1,450 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: zlib-thin.ads,v 1.11 2004/07/23 06:33:11 vagul Exp $
+
+with Interfaces.C.Strings;
+
+with System;
+
+private package ZLib.Thin is
+
+   --  From zconf.h
+
+   MAX_MEM_LEVEL : constant := 9;         --  zconf.h:105
+                                          --  zconf.h:105
+   MAX_WBITS : constant := 15;      --  zconf.h:115
+                                    --  32K LZ77 window
+                                    --  zconf.h:115
+   SEEK_SET : constant := 8#0000#;  --  zconf.h:244
+                                    --  Seek from beginning of file.
+                                    --  zconf.h:244
+   SEEK_CUR : constant := 1;        --  zconf.h:245
+                                    --  Seek from current position.
+                                    --  zconf.h:245
+   SEEK_END : constant := 2;        --  zconf.h:246
+                                    --  Set file pointer to EOF plus "offset"
+                                    --  zconf.h:246
+
+   type Byte is new Interfaces.C.unsigned_char; --  8 bits
+                                                --  zconf.h:214
+   type UInt is new Interfaces.C.unsigned;      --  16 bits or more
+                                                --  zconf.h:216
+   type Int is new Interfaces.C.int;
+
+   type ULong is new Interfaces.C.unsigned_long;     --  32 bits or more
+                                                     --  zconf.h:217
+   subtype Chars_Ptr is Interfaces.C.Strings.chars_ptr;
+
+   type ULong_Access is access ULong;
+   type Int_Access is access Int;
+
+   subtype Voidp is System.Address;            --  zconf.h:232
+
+   subtype Byte_Access is Voidp;
+
+   Nul : constant Voidp := System.Null_Address;
+   --  end from zconf
+
+   Z_NO_FLUSH : constant := 8#0000#;   --  zlib.h:125
+                                       --  zlib.h:125
+   Z_PARTIAL_FLUSH : constant := 1;       --  zlib.h:126
+                                          --  will be removed, use
+                                          --  Z_SYNC_FLUSH instead
+                                          --  zlib.h:126
+   Z_SYNC_FLUSH : constant := 2;       --  zlib.h:127
+                                       --  zlib.h:127
+   Z_FULL_FLUSH : constant := 3;       --  zlib.h:128
+                                       --  zlib.h:128
+   Z_FINISH : constant := 4;        --  zlib.h:129
+                                    --  zlib.h:129
+   Z_OK : constant := 8#0000#;   --  zlib.h:132
+                                 --  zlib.h:132
+   Z_STREAM_END : constant := 1;       --  zlib.h:133
+                                       --  zlib.h:133
+   Z_NEED_DICT : constant := 2;        --  zlib.h:134
+                                       --  zlib.h:134
+   Z_ERRNO : constant := -1;        --  zlib.h:135
+                                    --  zlib.h:135
+   Z_STREAM_ERROR : constant := -2;       --  zlib.h:136
+                                          --  zlib.h:136
+   Z_DATA_ERROR : constant := -3;      --  zlib.h:137
+                                       --  zlib.h:137
+   Z_MEM_ERROR : constant := -4;       --  zlib.h:138
+                                       --  zlib.h:138
+   Z_BUF_ERROR : constant := -5;       --  zlib.h:139
+                                       --  zlib.h:139
+   Z_VERSION_ERROR : constant := -6;      --  zlib.h:140
+                                          --  zlib.h:140
+   Z_NO_COMPRESSION : constant := 8#0000#;   --  zlib.h:145
+                                             --  zlib.h:145
+   Z_BEST_SPEED : constant := 1;       --  zlib.h:146
+                                       --  zlib.h:146
+   Z_BEST_COMPRESSION : constant := 9;       --  zlib.h:147
+                                             --  zlib.h:147
+   Z_DEFAULT_COMPRESSION : constant := -1;      --  zlib.h:148
+                                                --  zlib.h:148
+   Z_FILTERED : constant := 1;      --  zlib.h:151
+                                    --  zlib.h:151
+   Z_HUFFMAN_ONLY : constant := 2;        --  zlib.h:152
+                                          --  zlib.h:152
+   Z_DEFAULT_STRATEGY : constant := 8#0000#; --  zlib.h:153
+                                             --  zlib.h:153
+   Z_BINARY : constant := 8#0000#;  --  zlib.h:156
+                                    --  zlib.h:156
+   Z_ASCII : constant := 1;      --  zlib.h:157
+                                 --  zlib.h:157
+   Z_UNKNOWN : constant := 2;       --  zlib.h:158
+                                    --  zlib.h:158
+   Z_DEFLATED : constant := 8;      --  zlib.h:161
+                                    --  zlib.h:161
+   Z_NULL : constant := 8#0000#; --  zlib.h:164
+                                 --  for initializing zalloc, zfree, opaque
+                                 --  zlib.h:164
+   type gzFile is new Voidp;                  --  zlib.h:646
+
+   type Z_Stream is private;
+
+   type Z_Streamp is access all Z_Stream;     --  zlib.h:89
+
+   type alloc_func is access function
+     (Opaque : Voidp;
+      Items  : UInt;
+      Size   : UInt)
+      return Voidp; --  zlib.h:63
+
+   type free_func is access procedure (opaque : Voidp; address : Voidp);
+
+   function zlibVersion return Chars_Ptr;
+
+   function Deflate (strm : Z_Streamp; flush : Int) return Int;
+
+   function DeflateEnd (strm : Z_Streamp) return Int;
+
+   function Inflate (strm : Z_Streamp; flush : Int) return Int;
+
+   function InflateEnd (strm : Z_Streamp) return Int;
+
+   function deflateSetDictionary
+     (strm       : Z_Streamp;
+      dictionary : Byte_Access;
+      dictLength : UInt)
+      return       Int;
+
+   function deflateCopy (dest : Z_Streamp; source : Z_Streamp) return Int;
+   --  zlib.h:478
+
+   function deflateReset (strm : Z_Streamp) return Int; -- zlib.h:495
+
+   function deflateParams
+     (strm     : Z_Streamp;
+      level    : Int;
+      strategy : Int)
+      return     Int;       -- zlib.h:506
+
+   function inflateSetDictionary
+     (strm       : Z_Streamp;
+      dictionary : Byte_Access;
+      dictLength : UInt)
+      return       Int; --  zlib.h:548
+
+   function inflateSync (strm : Z_Streamp) return Int;  --  zlib.h:565
+
+   function inflateReset (strm : Z_Streamp) return Int; --  zlib.h:580
+
+   function compress
+     (dest      : Byte_Access;
+      destLen   : ULong_Access;
+      source    : Byte_Access;
+      sourceLen : ULong)
+      return      Int;           -- zlib.h:601
+
+   function compress2
+     (dest      : Byte_Access;
+      destLen   : ULong_Access;
+      source    : Byte_Access;
+      sourceLen : ULong;
+      level     : Int)
+      return      Int;          -- zlib.h:615
+
+   function uncompress
+     (dest      : Byte_Access;
+      destLen   : ULong_Access;
+      source    : Byte_Access;
+      sourceLen : ULong)
+      return      Int;
+
+   function gzopen (path : Chars_Ptr; mode : Chars_Ptr) return gzFile;
+
+   function gzdopen (fd : Int; mode : Chars_Ptr) return gzFile;
+
+   function gzsetparams
+     (file     : gzFile;
+      level    : Int;
+      strategy : Int)
+      return     Int;
+
+   function gzread
+     (file : gzFile;
+      buf  : Voidp;
+      len  : UInt)
+      return Int;
+
+   function gzwrite
+     (file : in gzFile;
+      buf  : in Voidp;
+      len  : in UInt)
+      return Int;
+
+   function gzprintf (file : in gzFile; format : in Chars_Ptr) return Int;
+
+   function gzputs (file : in gzFile; s : in Chars_Ptr) return Int;
+
+   function gzgets
+     (file : gzFile;
+      buf  : Chars_Ptr;
+      len  : Int)
+      return Chars_Ptr;
+
+   function gzputc (file : gzFile; char : Int) return Int;
+
+   function gzgetc (file : gzFile) return Int;
+
+   function gzflush (file : gzFile; flush : Int) return Int;
+
+   function gzseek
+     (file   : gzFile;
+      offset : Int;
+      whence : Int)
+      return   Int;
+
+   function gzrewind (file : gzFile) return Int;
+
+   function gztell (file : gzFile) return Int;
+
+   function gzeof (file : gzFile) return Int;
+
+   function gzclose (file : gzFile) return Int;
+
+   function gzerror (file : gzFile; errnum : Int_Access) return Chars_Ptr;
+
+   function adler32
+     (adler : ULong;
+      buf   : Byte_Access;
+      len   : UInt)
+      return  ULong;
+
+   function crc32
+     (crc  : ULong;
+      buf  : Byte_Access;
+      len  : UInt)
+      return ULong;
+
+   function deflateInit
+     (strm        : Z_Streamp;
+      level       : Int;
+      version     : Chars_Ptr;
+      stream_size : Int)
+      return        Int;
+
+   function deflateInit2
+     (strm        : Z_Streamp;
+      level       : Int;
+      method      : Int;
+      windowBits  : Int;
+      memLevel    : Int;
+      strategy    : Int;
+      version     : Chars_Ptr;
+      stream_size : Int)
+      return        Int;
+
+   function Deflate_Init
+     (strm       : Z_Streamp;
+      level      : Int;
+      method     : Int;
+      windowBits : Int;
+      memLevel   : Int;
+      strategy   : Int)
+      return       Int;
+   pragma Inline (Deflate_Init);
+
+   function inflateInit
+     (strm        : Z_Streamp;
+      version     : Chars_Ptr;
+      stream_size : Int)
+      return        Int;
+
+   function inflateInit2
+     (strm        : in Z_Streamp;
+      windowBits  : in Int;
+      version     : in Chars_Ptr;
+      stream_size : in Int)
+      return      Int;
+
+   function inflateBackInit
+     (strm        : in Z_Streamp;
+      windowBits  : in Int;
+      window      : in Byte_Access;
+      version     : in Chars_Ptr;
+      stream_size : in Int)
+      return      Int;
+   --  Size of window have to be 2**windowBits.
+
+   function Inflate_Init (strm : Z_Streamp; windowBits : Int) return Int;
+   pragma Inline (Inflate_Init);
+
+   function zError (err : Int) return Chars_Ptr;
+
+   function inflateSyncPoint (z : Z_Streamp) return Int;
+
+   function get_crc_table return ULong_Access;
+
+   --  Interface to the available fields of the z_stream structure.
+   --  The application must update next_in and avail_in when avail_in has
+   --  dropped to zero. It must update next_out and avail_out when avail_out
+   --  has dropped to zero. The application must initialize zalloc, zfree and
+   --  opaque before calling the init function.
+
+   procedure Set_In
+     (Strm   : in out Z_Stream;
+      Buffer : in Voidp;
+      Size   : in UInt);
+   pragma Inline (Set_In);
+
+   procedure Set_Out
+     (Strm   : in out Z_Stream;
+      Buffer : in Voidp;
+      Size   : in UInt);
+   pragma Inline (Set_Out);
+
+   procedure Set_Mem_Func
+     (Strm   : in out Z_Stream;
+      Opaque : in Voidp;
+      Alloc  : in alloc_func;
+      Free   : in free_func);
+   pragma Inline (Set_Mem_Func);
+
+   function Last_Error_Message (Strm : in Z_Stream) return String;
+   pragma Inline (Last_Error_Message);
+
+   function Avail_Out (Strm : in Z_Stream) return UInt;
+   pragma Inline (Avail_Out);
+
+   function Avail_In (Strm : in Z_Stream) return UInt;
+   pragma Inline (Avail_In);
+
+   function Total_In (Strm : in Z_Stream) return ULong;
+   pragma Inline (Total_In);
+
+   function Total_Out (Strm : in Z_Stream) return ULong;
+   pragma Inline (Total_Out);
+
+   function inflateCopy
+     (dest   : in Z_Streamp;
+      Source : in Z_Streamp)
+      return Int;
+
+   function compressBound (Source_Len : in ULong) return ULong;
+
+   function deflateBound
+     (Strm       : in Z_Streamp;
+      Source_Len : in ULong)
+      return     ULong;
+
+   function gzungetc (C : in Int; File : in  gzFile) return Int;
+
+   function zlibCompileFlags return ULong;
+
+private
+
+   type Z_Stream is record            -- zlib.h:68
+      Next_In   : Voidp      := Nul;  -- next input byte
+      Avail_In  : UInt       := 0;    -- number of bytes available at next_in
+      Total_In  : ULong      := 0;    -- total nb of input bytes read so far
+      Next_Out  : Voidp      := Nul;  -- next output byte should be put there
+      Avail_Out : UInt       := 0;    -- remaining free space at next_out
+      Total_Out : ULong      := 0;    -- total nb of bytes output so far
+      msg       : Chars_Ptr;          -- last error message, NULL if no error
+      state     : Voidp;              -- not visible by applications
+      zalloc    : alloc_func := null; -- used to allocate the internal state
+      zfree     : free_func  := null; -- used to free the internal state
+      opaque    : Voidp;              -- private data object passed to
+                                      --  zalloc and zfree
+      data_type : Int;                -- best guess about the data type:
+                                      --  ascii or binary
+      adler     : ULong;              -- adler32 value of the uncompressed
+                                      --  data
+      reserved  : ULong;              -- reserved for future use
+   end record;
+
+   pragma Convention (C, Z_Stream);
+
+   pragma Import (C, zlibVersion, "zlibVersion");
+   pragma Import (C, Deflate, "deflate");
+   pragma Import (C, DeflateEnd, "deflateEnd");
+   pragma Import (C, Inflate, "inflate");
+   pragma Import (C, InflateEnd, "inflateEnd");
+   pragma Import (C, deflateSetDictionary, "deflateSetDictionary");
+   pragma Import (C, deflateCopy, "deflateCopy");
+   pragma Import (C, deflateReset, "deflateReset");
+   pragma Import (C, deflateParams, "deflateParams");
+   pragma Import (C, inflateSetDictionary, "inflateSetDictionary");
+   pragma Import (C, inflateSync, "inflateSync");
+   pragma Import (C, inflateReset, "inflateReset");
+   pragma Import (C, compress, "compress");
+   pragma Import (C, compress2, "compress2");
+   pragma Import (C, uncompress, "uncompress");
+   pragma Import (C, gzopen, "gzopen");
+   pragma Import (C, gzdopen, "gzdopen");
+   pragma Import (C, gzsetparams, "gzsetparams");
+   pragma Import (C, gzread, "gzread");
+   pragma Import (C, gzwrite, "gzwrite");
+   pragma Import (C, gzprintf, "gzprintf");
+   pragma Import (C, gzputs, "gzputs");
+   pragma Import (C, gzgets, "gzgets");
+   pragma Import (C, gzputc, "gzputc");
+   pragma Import (C, gzgetc, "gzgetc");
+   pragma Import (C, gzflush, "gzflush");
+   pragma Import (C, gzseek, "gzseek");
+   pragma Import (C, gzrewind, "gzrewind");
+   pragma Import (C, gztell, "gztell");
+   pragma Import (C, gzeof, "gzeof");
+   pragma Import (C, gzclose, "gzclose");
+   pragma Import (C, gzerror, "gzerror");
+   pragma Import (C, adler32, "adler32");
+   pragma Import (C, crc32, "crc32");
+   pragma Import (C, deflateInit, "deflateInit_");
+   pragma Import (C, inflateInit, "inflateInit_");
+   pragma Import (C, deflateInit2, "deflateInit2_");
+   pragma Import (C, inflateInit2, "inflateInit2_");
+   pragma Import (C, zError, "zError");
+   pragma Import (C, inflateSyncPoint, "inflateSyncPoint");
+   pragma Import (C, get_crc_table, "get_crc_table");
+
+   --  since zlib 1.2.0:
+
+   pragma Import (C, inflateCopy, "inflateCopy");
+   pragma Import (C, compressBound, "compressBound");
+   pragma Import (C, deflateBound, "deflateBound");
+   pragma Import (C, gzungetc, "gzungetc");
+   pragma Import (C, zlibCompileFlags, "zlibCompileFlags");
+
+   pragma Import (C, inflateBackInit, "inflateBackInit_");
+
+   --  I stopped binding the inflateBack routines, because realize that
+   --  it does not support zlib and gzip headers for now, and have no
+   --  symmetric deflateBack routines.
+   --  ZLib-Ada is symmetric regarding deflate/inflate data transformation
+   --  and has a similar generic callback interface for the
+   --  deflate/inflate transformation based on the regular Deflate/Inflate
+   --  routines.
+
+   --  pragma Import (C, inflateBack, "inflateBack");
+   --  pragma Import (C, inflateBackEnd, "inflateBackEnd");
+
+end ZLib.Thin;
diff --git a/compat/zlib/contrib/ada/zlib.adb b/compat/zlib/contrib/ada/zlib.adb
new file mode 100644
index 0000000..c1abe79
--- /dev/null
+++ b/compat/zlib/contrib/ada/zlib.adb
@@ -0,0 +1,701 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2004 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: zlib.adb,v 1.31 2004/09/06 06:53:19 vagul Exp $
+
+with Ada.Exceptions;
+with Ada.Unchecked_Conversion;
+with Ada.Unchecked_Deallocation;
+
+with Interfaces.C.Strings;
+
+with ZLib.Thin;
+
+package body ZLib is
+
+   use type Thin.Int;
+
+   type Z_Stream is new Thin.Z_Stream;
+
+   type Return_Code_Enum is
+      (OK,
+       STREAM_END,
+       NEED_DICT,
+       ERRNO,
+       STREAM_ERROR,
+       DATA_ERROR,
+       MEM_ERROR,
+       BUF_ERROR,
+       VERSION_ERROR);
+
+   type Flate_Step_Function is access
+     function (Strm : in Thin.Z_Streamp; Flush : in Thin.Int) return Thin.Int;
+   pragma Convention (C, Flate_Step_Function);
+
+   type Flate_End_Function is access
+      function (Ctrm : in Thin.Z_Streamp) return Thin.Int;
+   pragma Convention (C, Flate_End_Function);
+
+   type Flate_Type is record
+      Step : Flate_Step_Function;
+      Done : Flate_End_Function;
+   end record;
+
+   subtype Footer_Array is Stream_Element_Array (1 .. 8);
+
+   Simple_GZip_Header : constant Stream_Element_Array (1 .. 10)
+     := (16#1f#, 16#8b#,                 --  Magic header
+         16#08#,                         --  Z_DEFLATED
+         16#00#,                         --  Flags
+         16#00#, 16#00#, 16#00#, 16#00#, --  Time
+         16#00#,                         --  XFlags
+         16#03#                          --  OS code
+        );
+   --  The simplest gzip header is not for informational, but just for
+   --  gzip format compatibility.
+   --  Note that some code below is using assumption
+   --  Simple_GZip_Header'Last > Footer_Array'Last, so do not make
+   --  Simple_GZip_Header'Last <= Footer_Array'Last.
+
+   Return_Code : constant array (Thin.Int range <>) of Return_Code_Enum
+     := (0 => OK,
+         1 => STREAM_END,
+         2 => NEED_DICT,
+        -1 => ERRNO,
+        -2 => STREAM_ERROR,
+        -3 => DATA_ERROR,
+        -4 => MEM_ERROR,
+        -5 => BUF_ERROR,
+        -6 => VERSION_ERROR);
+
+   Flate : constant array (Boolean) of Flate_Type
+     := (True  => (Step => Thin.Deflate'Access,
+                   Done => Thin.DeflateEnd'Access),
+         False => (Step => Thin.Inflate'Access,
+                   Done => Thin.InflateEnd'Access));
+
+   Flush_Finish : constant array (Boolean) of Flush_Mode
+     := (True => Finish, False => No_Flush);
+
+   procedure Raise_Error (Stream : in Z_Stream);
+   pragma Inline (Raise_Error);
+
+   procedure Raise_Error (Message : in String);
+   pragma Inline (Raise_Error);
+
+   procedure Check_Error (Stream : in Z_Stream; Code : in Thin.Int);
+
+   procedure Free is new Ada.Unchecked_Deallocation
+      (Z_Stream, Z_Stream_Access);
+
+   function To_Thin_Access is new Ada.Unchecked_Conversion
+     (Z_Stream_Access, Thin.Z_Streamp);
+
+   procedure Translate_GZip
+     (Filter    : in out Filter_Type;
+      In_Data   : in     Ada.Streams.Stream_Element_Array;
+      In_Last   :    out Ada.Streams.Stream_Element_Offset;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode);
+   --  Separate translate routine for make gzip header.
+
+   procedure Translate_Auto
+     (Filter    : in out Filter_Type;
+      In_Data   : in     Ada.Streams.Stream_Element_Array;
+      In_Last   :    out Ada.Streams.Stream_Element_Offset;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode);
+   --  translate routine without additional headers.
+
+   -----------------
+   -- Check_Error --
+   -----------------
+
+   procedure Check_Error (Stream : in Z_Stream; Code : in Thin.Int) is
+      use type Thin.Int;
+   begin
+      if Code /= Thin.Z_OK then
+         Raise_Error
+            (Return_Code_Enum'Image (Return_Code (Code))
+              & ": " & Last_Error_Message (Stream));
+      end if;
+   end Check_Error;
+
+   -----------
+   -- Close --
+   -----------
+
+   procedure Close
+     (Filter       : in out Filter_Type;
+      Ignore_Error : in     Boolean := False)
+   is
+      Code : Thin.Int;
+   begin
+      if not Ignore_Error and then not Is_Open (Filter) then
+         raise Status_Error;
+      end if;
+
+      Code := Flate (Filter.Compression).Done (To_Thin_Access (Filter.Strm));
+
+      if Ignore_Error or else Code = Thin.Z_OK then
+         Free (Filter.Strm);
+      else
+         declare
+            Error_Message : constant String
+              := Last_Error_Message (Filter.Strm.all);
+         begin
+            Free (Filter.Strm);
+            Ada.Exceptions.Raise_Exception
+               (ZLib_Error'Identity,
+                Return_Code_Enum'Image (Return_Code (Code))
+                  & ": " & Error_Message);
+         end;
+      end if;
+   end Close;
+
+   -----------
+   -- CRC32 --
+   -----------
+
+   function CRC32
+     (CRC  : in Unsigned_32;
+      Data : in Ada.Streams.Stream_Element_Array)
+      return Unsigned_32
+   is
+      use Thin;
+   begin
+      return Unsigned_32 (crc32 (ULong (CRC),
+                                 Data'Address,
+                                 Data'Length));
+   end CRC32;
+
+   procedure CRC32
+     (CRC  : in out Unsigned_32;
+      Data : in     Ada.Streams.Stream_Element_Array) is
+   begin
+      CRC := CRC32 (CRC, Data);
+   end CRC32;
+
+   ------------------
+   -- Deflate_Init --
+   ------------------
+
+   procedure Deflate_Init
+     (Filter       : in out Filter_Type;
+      Level        : in     Compression_Level  := Default_Compression;
+      Strategy     : in     Strategy_Type      := Default_Strategy;
+      Method       : in     Compression_Method := Deflated;
+      Window_Bits  : in     Window_Bits_Type   := Default_Window_Bits;
+      Memory_Level : in     Memory_Level_Type  := Default_Memory_Level;
+      Header       : in     Header_Type        := Default)
+   is
+      use type Thin.Int;
+      Win_Bits : Thin.Int := Thin.Int (Window_Bits);
+   begin
+      if Is_Open (Filter) then
+         raise Status_Error;
+      end if;
+
+      --  We allow ZLib to make header only in case of default header type.
+      --  Otherwise we would either do header by ourselves, or do not do
+      --  header at all.
+
+      if Header = None or else Header = GZip then
+         Win_Bits := -Win_Bits;
+      end if;
+
+      --  For the GZip CRC calculation and make headers.
+
+      if Header = GZip then
+         Filter.CRC    := 0;
+         Filter.Offset := Simple_GZip_Header'First;
+      else
+         Filter.Offset := Simple_GZip_Header'Last + 1;
+      end if;
+
+      Filter.Strm        := new Z_Stream;
+      Filter.Compression := True;
+      Filter.Stream_End  := False;
+      Filter.Header      := Header;
+
+      if Thin.Deflate_Init
+           (To_Thin_Access (Filter.Strm),
+            Level      => Thin.Int (Level),
+            method     => Thin.Int (Method),
+            windowBits => Win_Bits,
+            memLevel   => Thin.Int (Memory_Level),
+            strategy   => Thin.Int (Strategy)) /= Thin.Z_OK
+      then
+         Raise_Error (Filter.Strm.all);
+      end if;
+   end Deflate_Init;
+
+   -----------
+   -- Flush --
+   -----------
+
+   procedure Flush
+     (Filter    : in out Filter_Type;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode)
+   is
+      No_Data : Stream_Element_Array := (1 .. 0 => 0);
+      Last    : Stream_Element_Offset;
+   begin
+      Translate (Filter, No_Data, Last, Out_Data, Out_Last, Flush);
+   end Flush;
+
+   -----------------------
+   -- Generic_Translate --
+   -----------------------
+
+   procedure Generic_Translate
+     (Filter          : in out ZLib.Filter_Type;
+      In_Buffer_Size  : in     Integer := Default_Buffer_Size;
+      Out_Buffer_Size : in     Integer := Default_Buffer_Size)
+   is
+      In_Buffer  : Stream_Element_Array
+                     (1 .. Stream_Element_Offset (In_Buffer_Size));
+      Out_Buffer : Stream_Element_Array
+                     (1 .. Stream_Element_Offset (Out_Buffer_Size));
+      Last       : Stream_Element_Offset;
+      In_Last    : Stream_Element_Offset;
+      In_First   : Stream_Element_Offset;
+      Out_Last   : Stream_Element_Offset;
+   begin
+      Main : loop
+         Data_In (In_Buffer, Last);
+
+         In_First := In_Buffer'First;
+
+         loop
+            Translate
+              (Filter   => Filter,
+               In_Data  => In_Buffer (In_First .. Last),
+               In_Last  => In_Last,
+               Out_Data => Out_Buffer,
+               Out_Last => Out_Last,
+               Flush    => Flush_Finish (Last < In_Buffer'First));
+
+            if Out_Buffer'First <= Out_Last then
+               Data_Out (Out_Buffer (Out_Buffer'First .. Out_Last));
+            end if;
+
+            exit Main when Stream_End (Filter);
+
+            --  The end of in buffer.
+
+            exit when In_Last = Last;
+
+            In_First := In_Last + 1;
+         end loop;
+      end loop Main;
+
+   end Generic_Translate;
+
+   ------------------
+   -- Inflate_Init --
+   ------------------
+
+   procedure Inflate_Init
+     (Filter      : in out Filter_Type;
+      Window_Bits : in     Window_Bits_Type := Default_Window_Bits;
+      Header      : in     Header_Type      := Default)
+   is
+      use type Thin.Int;
+      Win_Bits : Thin.Int := Thin.Int (Window_Bits);
+
+      procedure Check_Version;
+      --  Check the latest header types compatibility.
+
+      procedure Check_Version is
+      begin
+         if Version <= "1.1.4" then
+            Raise_Error
+              ("Inflate header type " & Header_Type'Image (Header)
+               & " incompatible with ZLib version " & Version);
+         end if;
+      end Check_Version;
+
+   begin
+      if Is_Open (Filter) then
+         raise Status_Error;
+      end if;
+
+      case Header is
+         when None =>
+            Check_Version;
+
+            --  Inflate data without headers determined
+            --  by negative Win_Bits.
+
+            Win_Bits := -Win_Bits;
+         when GZip =>
+            Check_Version;
+
+            --  Inflate gzip data defined by flag 16.
+
+            Win_Bits := Win_Bits + 16;
+         when Auto =>
+            Check_Version;
+
+            --  Inflate with automatic detection
+            --  of gzip or native header defined by flag 32.
+
+            Win_Bits := Win_Bits + 32;
+         when Default => null;
+      end case;
+
+      Filter.Strm        := new Z_Stream;
+      Filter.Compression := False;
+      Filter.Stream_End  := False;
+      Filter.Header      := Header;
+
+      if Thin.Inflate_Init
+         (To_Thin_Access (Filter.Strm), Win_Bits) /= Thin.Z_OK
+      then
+         Raise_Error (Filter.Strm.all);
+      end if;
+   end Inflate_Init;
+
+   -------------
+   -- Is_Open --
+   -------------
+
+   function Is_Open (Filter : in Filter_Type) return Boolean is
+   begin
+      return Filter.Strm /= null;
+   end Is_Open;
+
+   -----------------
+   -- Raise_Error --
+   -----------------
+
+   procedure Raise_Error (Message : in String) is
+   begin
+      Ada.Exceptions.Raise_Exception (ZLib_Error'Identity, Message);
+   end Raise_Error;
+
+   procedure Raise_Error (Stream : in Z_Stream) is
+   begin
+      Raise_Error (Last_Error_Message (Stream));
+   end Raise_Error;
+
+   ----------
+   -- Read --
+   ----------
+
+   procedure Read
+     (Filter : in out Filter_Type;
+      Item   :    out Ada.Streams.Stream_Element_Array;
+      Last   :    out Ada.Streams.Stream_Element_Offset;
+      Flush  : in     Flush_Mode := No_Flush)
+   is
+      In_Last    : Stream_Element_Offset;
+      Item_First : Ada.Streams.Stream_Element_Offset := Item'First;
+      V_Flush    : Flush_Mode := Flush;
+
+   begin
+      pragma Assert (Rest_First in Buffer'First .. Buffer'Last + 1);
+      pragma Assert (Rest_Last in Buffer'First - 1 .. Buffer'Last);
+
+      loop
+         if Rest_Last = Buffer'First - 1 then
+            V_Flush := Finish;
+
+         elsif Rest_First > Rest_Last then
+            Read (Buffer, Rest_Last);
+            Rest_First := Buffer'First;
+
+            if Rest_Last < Buffer'First then
+               V_Flush := Finish;
+            end if;
+         end if;
+
+         Translate
+           (Filter   => Filter,
+            In_Data  => Buffer (Rest_First .. Rest_Last),
+            In_Last  => In_Last,
+            Out_Data => Item (Item_First .. Item'Last),
+            Out_Last => Last,
+            Flush    => V_Flush);
+
+         Rest_First := In_Last + 1;
+
+         exit when Stream_End (Filter)
+           or else Last = Item'Last
+           or else (Last >= Item'First and then Allow_Read_Some);
+
+         Item_First := Last + 1;
+      end loop;
+   end Read;
+
+   ----------------
+   -- Stream_End --
+   ----------------
+
+   function Stream_End (Filter : in Filter_Type) return Boolean is
+   begin
+      if Filter.Header = GZip and Filter.Compression then
+         return Filter.Stream_End
+            and then Filter.Offset = Footer_Array'Last + 1;
+      else
+         return Filter.Stream_End;
+      end if;
+   end Stream_End;
+
+   --------------
+   -- Total_In --
+   --------------
+
+   function Total_In (Filter : in Filter_Type) return Count is
+   begin
+      return Count (Thin.Total_In (To_Thin_Access (Filter.Strm).all));
+   end Total_In;
+
+   ---------------
+   -- Total_Out --
+   ---------------
+
+   function Total_Out (Filter : in Filter_Type) return Count is
+   begin
+      return Count (Thin.Total_Out (To_Thin_Access (Filter.Strm).all));
+   end Total_Out;
+
+   ---------------
+   -- Translate --
+   ---------------
+
+   procedure Translate
+     (Filter    : in out Filter_Type;
+      In_Data   : in     Ada.Streams.Stream_Element_Array;
+      In_Last   :    out Ada.Streams.Stream_Element_Offset;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode) is
+   begin
+      if Filter.Header = GZip and then Filter.Compression then
+         Translate_GZip
+           (Filter   => Filter,
+            In_Data  => In_Data,
+            In_Last  => In_Last,
+            Out_Data => Out_Data,
+            Out_Last => Out_Last,
+            Flush    => Flush);
+      else
+         Translate_Auto
+           (Filter   => Filter,
+            In_Data  => In_Data,
+            In_Last  => In_Last,
+            Out_Data => Out_Data,
+            Out_Last => Out_Last,
+            Flush    => Flush);
+      end if;
+   end Translate;
+
+   --------------------
+   -- Translate_Auto --
+   --------------------
+
+   procedure Translate_Auto
+     (Filter    : in out Filter_Type;
+      In_Data   : in     Ada.Streams.Stream_Element_Array;
+      In_Last   :    out Ada.Streams.Stream_Element_Offset;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode)
+   is
+      use type Thin.Int;
+      Code : Thin.Int;
+
+   begin
+      if not Is_Open (Filter) then
+         raise Status_Error;
+      end if;
+
+      if Out_Data'Length = 0 and then In_Data'Length = 0 then
+         raise Constraint_Error;
+      end if;
+
+      Set_Out (Filter.Strm.all, Out_Data'Address, Out_Data'Length);
+      Set_In  (Filter.Strm.all, In_Data'Address, In_Data'Length);
+
+      Code := Flate (Filter.Compression).Step
+        (To_Thin_Access (Filter.Strm),
+         Thin.Int (Flush));
+
+      if Code = Thin.Z_STREAM_END then
+         Filter.Stream_End := True;
+      else
+         Check_Error (Filter.Strm.all, Code);
+      end if;
+
+      In_Last  := In_Data'Last
+         - Stream_Element_Offset (Avail_In (Filter.Strm.all));
+      Out_Last := Out_Data'Last
+         - Stream_Element_Offset (Avail_Out (Filter.Strm.all));
+   end Translate_Auto;
+
+   --------------------
+   -- Translate_GZip --
+   --------------------
+
+   procedure Translate_GZip
+     (Filter    : in out Filter_Type;
+      In_Data   : in     Ada.Streams.Stream_Element_Array;
+      In_Last   :    out Ada.Streams.Stream_Element_Offset;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode)
+   is
+      Out_First : Stream_Element_Offset;
+
+      procedure Add_Data (Data : in Stream_Element_Array);
+      --  Add data to stream from the Filter.Offset till necessary,
+      --  used for add gzip headr/footer.
+
+      procedure Put_32
+        (Item : in out Stream_Element_Array;
+         Data : in     Unsigned_32);
+      pragma Inline (Put_32);
+
+      --------------
+      -- Add_Data --
+      --------------
+
+      procedure Add_Data (Data : in Stream_Element_Array) is
+         Data_First : Stream_Element_Offset renames Filter.Offset;
+         Data_Last  : Stream_Element_Offset;
+         Data_Len   : Stream_Element_Offset; --  -1
+         Out_Len    : Stream_Element_Offset; --  -1
+      begin
+         Out_First := Out_Last + 1;
+
+         if Data_First > Data'Last then
+            return;
+         end if;
+
+         Data_Len  := Data'Last     - Data_First;
+         Out_Len   := Out_Data'Last - Out_First;
+
+         if Data_Len <= Out_Len then
+            Out_Last  := Out_First  + Data_Len;
+            Data_Last := Data'Last;
+         else
+            Out_Last  := Out_Data'Last;
+            Data_Last := Data_First + Out_Len;
+         end if;
+
+         Out_Data (Out_First .. Out_Last) := Data (Data_First .. Data_Last);
+
+         Data_First := Data_Last + 1;
+         Out_First  := Out_Last + 1;
+      end Add_Data;
+
+      ------------
+      -- Put_32 --
+      ------------
+
+      procedure Put_32
+        (Item : in out Stream_Element_Array;
+         Data : in     Unsigned_32)
+      is
+         D : Unsigned_32 := Data;
+      begin
+         for J in Item'First .. Item'First + 3 loop
+            Item (J) := Stream_Element (D and 16#FF#);
+            D := Shift_Right (D, 8);
+         end loop;
+      end Put_32;
+
+   begin
+      Out_Last := Out_Data'First - 1;
+
+      if not Filter.Stream_End then
+         Add_Data (Simple_GZip_Header);
+
+         Translate_Auto
+           (Filter   => Filter,
+            In_Data  => In_Data,
+            In_Last  => In_Last,
+            Out_Data => Out_Data (Out_First .. Out_Data'Last),
+            Out_Last => Out_Last,
+            Flush    => Flush);
+
+         CRC32 (Filter.CRC, In_Data (In_Data'First .. In_Last));
+      end if;
+
+      if Filter.Stream_End and then Out_Last <= Out_Data'Last then
+         --  This detection method would work only when
+         --  Simple_GZip_Header'Last > Footer_Array'Last
+
+         if Filter.Offset = Simple_GZip_Header'Last + 1 then
+            Filter.Offset := Footer_Array'First;
+         end if;
+
+         declare
+            Footer : Footer_Array;
+         begin
+            Put_32 (Footer, Filter.CRC);
+            Put_32 (Footer (Footer'First + 4 .. Footer'Last),
+                    Unsigned_32 (Total_In (Filter)));
+            Add_Data (Footer);
+         end;
+      end if;
+   end Translate_GZip;
+
+   -------------
+   -- Version --
+   -------------
+
+   function Version return String is
+   begin
+      return Interfaces.C.Strings.Value (Thin.zlibVersion);
+   end Version;
+
+   -----------
+   -- Write --
+   -----------
+
+   procedure Write
+     (Filter : in out Filter_Type;
+      Item   : in     Ada.Streams.Stream_Element_Array;
+      Flush  : in     Flush_Mode := No_Flush)
+   is
+      Buffer   : Stream_Element_Array (1 .. Buffer_Size);
+      In_Last  : Stream_Element_Offset;
+      Out_Last : Stream_Element_Offset;
+      In_First : Stream_Element_Offset := Item'First;
+   begin
+      if Item'Length = 0 and Flush = No_Flush then
+         return;
+      end if;
+
+      loop
+         Translate
+           (Filter   => Filter,
+            In_Data  => Item (In_First .. Item'Last),
+            In_Last  => In_Last,
+            Out_Data => Buffer,
+            Out_Last => Out_Last,
+            Flush    => Flush);
+
+         if Out_Last >= Buffer'First then
+            Write (Buffer (1 .. Out_Last));
+         end if;
+
+         exit when In_Last = Item'Last or Stream_End (Filter);
+
+         In_First := In_Last + 1;
+      end loop;
+   end Write;
+
+end ZLib;
diff --git a/compat/zlib/contrib/ada/zlib.ads b/compat/zlib/contrib/ada/zlib.ads
new file mode 100644
index 0000000..81aaf1b
--- /dev/null
+++ b/compat/zlib/contrib/ada/zlib.ads
@@ -0,0 +1,328 @@
+------------------------------------------------------------------------------
+--                      ZLib for Ada thick binding.                         --
+--                                                                          --
+--              Copyright (C) 2002-2004 Dmitriy Anisimkov                   --
+--                                                                          --
+--  This library is free software; you can redistribute it and/or modify    --
+--  it under the terms of the GNU General Public License as published by    --
+--  the Free Software Foundation; either version 2 of the License, or (at   --
+--  your option) any later version.                                         --
+--                                                                          --
+--  This library is distributed in the hope that it will be useful, but     --
+--  WITHOUT ANY WARRANTY; without even the implied warranty of              --
+--  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU       --
+--  General Public License for more details.                                --
+--                                                                          --
+--  You should have received a copy of the GNU General Public License       --
+--  along with this library; if not, write to the Free Software Foundation, --
+--  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.          --
+--                                                                          --
+--  As a special exception, if other files instantiate generics from this   --
+--  unit, or you link this unit with other files to produce an executable,  --
+--  this  unit  does not  by itself cause  the resulting executable to be   --
+--  covered by the GNU General Public License. This exception does not      --
+--  however invalidate any other reasons why the executable file  might be  --
+--  covered by the  GNU Public License.                                     --
+------------------------------------------------------------------------------
+
+--  $Id: zlib.ads,v 1.26 2004/09/06 06:53:19 vagul Exp $
+
+with Ada.Streams;
+
+with Interfaces;
+
+package ZLib is
+
+   ZLib_Error   : exception;
+   Status_Error : exception;
+
+   type Compression_Level is new Integer range -1 .. 9;
+
+   type Flush_Mode is private;
+
+   type Compression_Method is private;
+
+   type Window_Bits_Type is new Integer range 8 .. 15;
+
+   type Memory_Level_Type is new Integer range 1 .. 9;
+
+   type Unsigned_32 is new Interfaces.Unsigned_32;
+
+   type Strategy_Type is private;
+
+   type Header_Type is (None, Auto, Default, GZip);
+   --  Header type usage have a some limitation for inflate.
+   --  See comment for Inflate_Init.
+
+   subtype Count is Ada.Streams.Stream_Element_Count;
+
+   Default_Memory_Level : constant Memory_Level_Type := 8;
+   Default_Window_Bits  : constant Window_Bits_Type  := 15;
+
+   ----------------------------------
+   -- Compression method constants --
+   ----------------------------------
+
+   Deflated : constant Compression_Method;
+   --  Only one method allowed in this ZLib version
+
+   ---------------------------------
+   -- Compression level constants --
+   ---------------------------------
+
+   No_Compression      : constant Compression_Level := 0;
+   Best_Speed          : constant Compression_Level := 1;
+   Best_Compression    : constant Compression_Level := 9;
+   Default_Compression : constant Compression_Level := -1;
+
+   --------------------------
+   -- Flush mode constants --
+   --------------------------
+
+   No_Flush      : constant Flush_Mode;
+   --  Regular way for compression, no flush
+
+   Partial_Flush : constant Flush_Mode;
+   --  Will be removed, use Z_SYNC_FLUSH instead
+
+   Sync_Flush    : constant Flush_Mode;
+   --  All pending output is flushed to the output buffer and the output
+   --  is aligned on a byte boundary, so that the decompressor can get all
+   --  input data available so far. (In particular avail_in is zero after the
+   --  call if enough output space has been provided  before the call.)
+   --  Flushing may degrade compression for some compression algorithms and so
+   --  it should be used only when necessary.
+
+   Block_Flush   : constant Flush_Mode;
+   --  Z_BLOCK requests that inflate() stop
+   --  if and when it get to the next deflate block boundary. When decoding the
+   --  zlib or gzip format, this will cause inflate() to return immediately
+   --  after the header and before the first block. When doing a raw inflate,
+   --  inflate() will go ahead and process the first block, and will return
+   --  when it gets to the end of that block, or when it runs out of data.
+
+   Full_Flush    : constant Flush_Mode;
+   --  All output is flushed as with SYNC_FLUSH, and the compression state
+   --  is reset so that decompression can restart from this point if previous
+   --  compressed data has been damaged or if random access is desired. Using
+   --  Full_Flush too often can seriously degrade the compression.
+
+   Finish        : constant Flush_Mode;
+   --  Just for tell the compressor that input data is complete.
+
+   ------------------------------------
+   -- Compression strategy constants --
+   ------------------------------------
+
+   --  RLE strategy could be used only in version 1.2.0 and later.
+
+   Filtered         : constant Strategy_Type;
+   Huffman_Only     : constant Strategy_Type;
+   RLE              : constant Strategy_Type;
+   Default_Strategy : constant Strategy_Type;
+
+   Default_Buffer_Size : constant := 4096;
+
+   type Filter_Type is tagged limited private;
+   --  The filter is for compression and for decompression.
+   --  The usage of the type is depend of its initialization.
+
+   function Version return String;
+   pragma Inline (Version);
+   --  Return string representation of the ZLib version.
+
+   procedure Deflate_Init
+     (Filter       : in out Filter_Type;
+      Level        : in     Compression_Level  := Default_Compression;
+      Strategy     : in     Strategy_Type      := Default_Strategy;
+      Method       : in     Compression_Method := Deflated;
+      Window_Bits  : in     Window_Bits_Type   := Default_Window_Bits;
+      Memory_Level : in     Memory_Level_Type  := Default_Memory_Level;
+      Header       : in     Header_Type        := Default);
+   --  Compressor initialization.
+   --  When Header parameter is Auto or Default, then default zlib header
+   --  would be provided for compressed data.
+   --  When Header is GZip, then gzip header would be set instead of
+   --  default header.
+   --  When Header is None, no header would be set for compressed data.
+
+   procedure Inflate_Init
+     (Filter      : in out Filter_Type;
+      Window_Bits : in     Window_Bits_Type := Default_Window_Bits;
+      Header      : in     Header_Type      := Default);
+   --  Decompressor initialization.
+   --  Default header type mean that ZLib default header is expecting in the
+   --  input compressed stream.
+   --  Header type None mean that no header is expecting in the input stream.
+   --  GZip header type mean that GZip header is expecting in the
+   --  input compressed stream.
+   --  Auto header type mean that header type (GZip or Native) would be
+   --  detected automatically in the input stream.
+   --  Note that header types parameter values None, GZip and Auto are
+   --  supported for inflate routine only in ZLib versions 1.2.0.2 and later.
+   --  Deflate_Init is supporting all header types.
+
+   function Is_Open (Filter : in Filter_Type) return Boolean;
+   pragma Inline (Is_Open);
+   --  Is the filter opened for compression or decompression.
+
+   procedure Close
+     (Filter       : in out Filter_Type;
+      Ignore_Error : in     Boolean := False);
+   --  Closing the compression or decompressor.
+   --  If stream is closing before the complete and Ignore_Error is False,
+   --  The exception would be raised.
+
+   generic
+      with procedure Data_In
+        (Item : out Ada.Streams.Stream_Element_Array;
+         Last : out Ada.Streams.Stream_Element_Offset);
+      with procedure Data_Out
+        (Item : in Ada.Streams.Stream_Element_Array);
+   procedure Generic_Translate
+     (Filter          : in out Filter_Type;
+      In_Buffer_Size  : in     Integer := Default_Buffer_Size;
+      Out_Buffer_Size : in     Integer := Default_Buffer_Size);
+   --  Compress/decompress data fetch from Data_In routine and pass the result
+   --  to the Data_Out routine. User should provide Data_In and Data_Out
+   --  for compression/decompression data flow.
+   --  Compression or decompression depend on Filter initialization.
+
+   function Total_In (Filter : in Filter_Type) return Count;
+   pragma Inline (Total_In);
+   --  Returns total number of input bytes read so far
+
+   function Total_Out (Filter : in Filter_Type) return Count;
+   pragma Inline (Total_Out);
+   --  Returns total number of bytes output so far
+
+   function CRC32
+     (CRC    : in Unsigned_32;
+      Data   : in Ada.Streams.Stream_Element_Array)
+      return Unsigned_32;
+   pragma Inline (CRC32);
+   --  Compute CRC32, it could be necessary for make gzip format
+
+   procedure CRC32
+     (CRC  : in out Unsigned_32;
+      Data : in     Ada.Streams.Stream_Element_Array);
+   pragma Inline (CRC32);
+   --  Compute CRC32, it could be necessary for make gzip format
+
+   -------------------------------------------------
+   --  Below is more complex low level routines.  --
+   -------------------------------------------------
+
+   procedure Translate
+     (Filter    : in out Filter_Type;
+      In_Data   : in     Ada.Streams.Stream_Element_Array;
+      In_Last   :    out Ada.Streams.Stream_Element_Offset;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode);
+   --  Compress/decompress the In_Data buffer and place the result into
+   --  Out_Data. In_Last is the index of last element from In_Data accepted by
+   --  the Filter. Out_Last is the last element of the received data from
+   --  Filter. To tell the filter that incoming data are complete put the
+   --  Flush parameter to Finish.
+
+   function Stream_End (Filter : in Filter_Type) return Boolean;
+   pragma Inline (Stream_End);
+   --  Return the true when the stream is complete.
+
+   procedure Flush
+     (Filter    : in out Filter_Type;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode);
+   pragma Inline (Flush);
+   --  Flushing the data from the compressor.
+
+   generic
+      with procedure Write
+        (Item : in Ada.Streams.Stream_Element_Array);
+      --  User should provide this routine for accept
+      --  compressed/decompressed data.
+
+      Buffer_Size : in Ada.Streams.Stream_Element_Offset
+         := Default_Buffer_Size;
+      --  Buffer size for Write user routine.
+
+   procedure Write
+     (Filter  : in out Filter_Type;
+      Item    : in     Ada.Streams.Stream_Element_Array;
+      Flush   : in     Flush_Mode := No_Flush);
+   --  Compress/Decompress data from Item to the generic parameter procedure
+   --  Write. Output buffer size could be set in Buffer_Size generic parameter.
+
+   generic
+      with procedure Read
+        (Item : out Ada.Streams.Stream_Element_Array;
+         Last : out Ada.Streams.Stream_Element_Offset);
+      --  User should provide data for compression/decompression
+      --  thru this routine.
+
+      Buffer : in out Ada.Streams.Stream_Element_Array;
+      --  Buffer for keep remaining data from the previous
+      --  back read.
+
+      Rest_First, Rest_Last : in out Ada.Streams.Stream_Element_Offset;
+      --  Rest_First have to be initialized to Buffer'Last + 1
+      --  Rest_Last have to be initialized to Buffer'Last
+      --  before usage.
+
+      Allow_Read_Some : in Boolean := False;
+      --  Is it allowed to return Last < Item'Last before end of data.
+
+   procedure Read
+     (Filter : in out Filter_Type;
+      Item   :    out Ada.Streams.Stream_Element_Array;
+      Last   :    out Ada.Streams.Stream_Element_Offset;
+      Flush  : in     Flush_Mode := No_Flush);
+   --  Compress/Decompress data from generic parameter procedure Read to the
+   --  Item. User should provide Buffer and initialized Rest_First, Rest_Last
+   --  indicators. If Allow_Read_Some is True, Read routines could return
+   --  Last < Item'Last only at end of stream.
+
+private
+
+   use Ada.Streams;
+
+   pragma Assert (Ada.Streams.Stream_Element'Size    =    8);
+   pragma Assert (Ada.Streams.Stream_Element'Modulus = 2**8);
+
+   type Flush_Mode is new Integer range 0 .. 5;
+
+   type Compression_Method is new Integer range 8 .. 8;
+
+   type Strategy_Type is new Integer range 0 .. 3;
+
+   No_Flush      : constant Flush_Mode := 0;
+   Partial_Flush : constant Flush_Mode := 1;
+   Sync_Flush    : constant Flush_Mode := 2;
+   Full_Flush    : constant Flush_Mode := 3;
+   Finish        : constant Flush_Mode := 4;
+   Block_Flush   : constant Flush_Mode := 5;
+
+   Filtered         : constant Strategy_Type := 1;
+   Huffman_Only     : constant Strategy_Type := 2;
+   RLE              : constant Strategy_Type := 3;
+   Default_Strategy : constant Strategy_Type := 0;
+
+   Deflated : constant Compression_Method := 8;
+
+   type Z_Stream;
+
+   type Z_Stream_Access is access all Z_Stream;
+
+   type Filter_Type is tagged limited record
+      Strm        : Z_Stream_Access;
+      Compression : Boolean;
+      Stream_End  : Boolean;
+      Header      : Header_Type;
+      CRC         : Unsigned_32;
+      Offset      : Stream_Element_Offset;
+      --  Offset for gzip header/footer output.
+   end record;
+
+end ZLib;
diff --git a/compat/zlib/contrib/ada/zlib.gpr b/compat/zlib/contrib/ada/zlib.gpr
new file mode 100644
index 0000000..296b22a
--- /dev/null
+++ b/compat/zlib/contrib/ada/zlib.gpr
@@ -0,0 +1,20 @@
+project Zlib is
+
+   for Languages use ("Ada");
+   for Source_Dirs use (".");
+   for Object_Dir use ".";
+   for Main use ("test.adb", "mtest.adb", "read.adb", "buffer_demo");
+
+   package Compiler is
+      for Default_Switches ("ada") use ("-gnatwcfilopru", "-gnatVcdfimorst", "-gnatyabcefhiklmnoprst");
+   end Compiler;
+
+   package Linker is
+      for Default_Switches ("ada") use ("-lz");
+   end Linker;
+
+   package Builder is
+      for Default_Switches ("ada") use ("-s", "-gnatQ");
+   end Builder;
+
+end Zlib;
diff --git a/compat/zlib/contrib/asm686/match.S b/compat/zlib/contrib/asm686/match.S
new file mode 100644
index 0000000..fa42109
--- /dev/null
+++ b/compat/zlib/contrib/asm686/match.S
@@ -0,0 +1,357 @@
+/* match.S -- x86 assembly version of the zlib longest_match() function.
+ * Optimized for the Intel 686 chips (PPro and later).
+ *
+ * Copyright (C) 1998, 2007 Brian Raiter <breadbox@muppetlabs.com>
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the author be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#ifndef NO_UNDERLINE
+#define	match_init	_match_init
+#define	longest_match	_longest_match
+#endif
+
+#define	MAX_MATCH	(258)
+#define	MIN_MATCH	(3)
+#define	MIN_LOOKAHEAD	(MAX_MATCH + MIN_MATCH + 1)
+#define	MAX_MATCH_8	((MAX_MATCH + 7) & ~7)
+
+/* stack frame offsets */
+
+#define	chainlenwmask		0	/* high word: current chain len	*/
+					/* low word: s->wmask		*/
+#define	window			4	/* local copy of s->window	*/
+#define	windowbestlen		8	/* s->window + bestlen		*/
+#define	scanstart		16	/* first two bytes of string	*/
+#define	scanend			12	/* last two bytes of string	*/
+#define	scanalign		20	/* dword-misalignment of string	*/
+#define	nicematch		24	/* a good enough match size	*/
+#define	bestlen			28	/* size of best match so far	*/
+#define	scan			32	/* ptr to string wanting match	*/
+
+#define	LocalVarsSize		(36)
+/*	saved ebx		36 */
+/*	saved edi		40 */
+/*	saved esi		44 */
+/*	saved ebp		48 */
+/*	return address		52 */
+#define	deflatestate		56	/* the function arguments	*/
+#define	curmatch		60
+
+/* All the +zlib1222add offsets are due to the addition of fields
+ *  in zlib in the deflate_state structure since the asm code was first written
+ * (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)").
+ * (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0").
+ * if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8").
+ */
+
+#define zlib1222add		(8)
+
+#define	dsWSize			(36+zlib1222add)
+#define	dsWMask			(44+zlib1222add)
+#define	dsWindow		(48+zlib1222add)
+#define	dsPrev			(56+zlib1222add)
+#define	dsMatchLen		(88+zlib1222add)
+#define	dsPrevMatch		(92+zlib1222add)
+#define	dsStrStart		(100+zlib1222add)
+#define	dsMatchStart		(104+zlib1222add)
+#define	dsLookahead		(108+zlib1222add)
+#define	dsPrevLen		(112+zlib1222add)
+#define	dsMaxChainLen		(116+zlib1222add)
+#define	dsGoodMatch		(132+zlib1222add)
+#define	dsNiceMatch		(136+zlib1222add)
+
+
+.file "match.S"
+
+.globl	match_init, longest_match
+
+.text
+
+/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */
+.cfi_sections	.debug_frame
+
+longest_match:
+
+.cfi_startproc
+/* Save registers that the compiler may be using, and adjust %esp to	*/
+/* make room for our stack frame.					*/
+
+		pushl	%ebp
+		.cfi_def_cfa_offset 8
+		.cfi_offset ebp, -8
+		pushl	%edi
+		.cfi_def_cfa_offset 12
+		pushl	%esi
+		.cfi_def_cfa_offset 16
+		pushl	%ebx
+		.cfi_def_cfa_offset 20
+		subl	$LocalVarsSize, %esp
+		.cfi_def_cfa_offset LocalVarsSize+20
+
+/* Retrieve the function arguments. %ecx will hold cur_match		*/
+/* throughout the entire function. %edx will hold the pointer to the	*/
+/* deflate_state structure during the function's setup (before		*/
+/* entering the main loop).						*/
+
+		movl	deflatestate(%esp), %edx
+		movl	curmatch(%esp), %ecx
+
+/* uInt wmask = s->w_mask;						*/
+/* unsigned chain_length = s->max_chain_length;				*/
+/* if (s->prev_length >= s->good_match) {				*/
+/*     chain_length >>= 2;						*/
+/* }									*/
+ 
+		movl	dsPrevLen(%edx), %eax
+		movl	dsGoodMatch(%edx), %ebx
+		cmpl	%ebx, %eax
+		movl	dsWMask(%edx), %eax
+		movl	dsMaxChainLen(%edx), %ebx
+		jl	LastMatchGood
+		shrl	$2, %ebx
+LastMatchGood:
+
+/* chainlen is decremented once beforehand so that the function can	*/
+/* use the sign flag instead of the zero flag for the exit test.	*/
+/* It is then shifted into the high word, to make room for the wmask	*/
+/* value, which it will always accompany.				*/
+
+		decl	%ebx
+		shll	$16, %ebx
+		orl	%eax, %ebx
+		movl	%ebx, chainlenwmask(%esp)
+
+/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;	*/
+
+		movl	dsNiceMatch(%edx), %eax
+		movl	dsLookahead(%edx), %ebx
+		cmpl	%eax, %ebx
+		jl	LookaheadLess
+		movl	%eax, %ebx
+LookaheadLess:	movl	%ebx, nicematch(%esp)
+
+/* register Bytef *scan = s->window + s->strstart;			*/
+
+		movl	dsWindow(%edx), %esi
+		movl	%esi, window(%esp)
+		movl	dsStrStart(%edx), %ebp
+		lea	(%esi,%ebp), %edi
+		movl	%edi, scan(%esp)
+
+/* Determine how many bytes the scan ptr is off from being		*/
+/* dword-aligned.							*/
+
+		movl	%edi, %eax
+		negl	%eax
+		andl	$3, %eax
+		movl	%eax, scanalign(%esp)
+
+/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ?			*/
+/*     s->strstart - (IPos)MAX_DIST(s) : NIL;				*/
+
+		movl	dsWSize(%edx), %eax
+		subl	$MIN_LOOKAHEAD, %eax
+		subl	%eax, %ebp
+		jg	LimitPositive
+		xorl	%ebp, %ebp
+LimitPositive:
+
+/* int best_len = s->prev_length;					*/
+
+		movl	dsPrevLen(%edx), %eax
+		movl	%eax, bestlen(%esp)
+
+/* Store the sum of s->window + best_len in %esi locally, and in %esi.	*/
+
+		addl	%eax, %esi
+		movl	%esi, windowbestlen(%esp)
+
+/* register ush scan_start = *(ushf*)scan;				*/
+/* register ush scan_end   = *(ushf*)(scan+best_len-1);			*/
+/* Posf *prev = s->prev;						*/
+
+		movzwl	(%edi), %ebx
+		movl	%ebx, scanstart(%esp)
+		movzwl	-1(%edi,%eax), %ebx
+		movl	%ebx, scanend(%esp)
+		movl	dsPrev(%edx), %edi
+
+/* Jump into the main loop.						*/
+
+		movl	chainlenwmask(%esp), %edx
+		jmp	LoopEntry
+
+.balign 16
+
+/* do {
+ *     match = s->window + cur_match;
+ *     if (*(ushf*)(match+best_len-1) != scan_end ||
+ *         *(ushf*)match != scan_start) continue;
+ *     [...]
+ * } while ((cur_match = prev[cur_match & wmask]) > limit
+ *          && --chain_length != 0);
+ *
+ * Here is the inner loop of the function. The function will spend the
+ * majority of its time in this loop, and majority of that time will
+ * be spent in the first ten instructions.
+ *
+ * Within this loop:
+ * %ebx = scanend
+ * %ecx = curmatch
+ * %edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)
+ * %esi = windowbestlen - i.e., (window + bestlen)
+ * %edi = prev
+ * %ebp = limit
+ */
+LookupLoop:
+		andl	%edx, %ecx
+		movzwl	(%edi,%ecx,2), %ecx
+		cmpl	%ebp, %ecx
+		jbe	LeaveNow
+		subl	$0x00010000, %edx
+		js	LeaveNow
+LoopEntry:	movzwl	-1(%esi,%ecx), %eax
+		cmpl	%ebx, %eax
+		jnz	LookupLoop
+		movl	window(%esp), %eax
+		movzwl	(%eax,%ecx), %eax
+		cmpl	scanstart(%esp), %eax
+		jnz	LookupLoop
+
+/* Store the current value of chainlen.					*/
+
+		movl	%edx, chainlenwmask(%esp)
+
+/* Point %edi to the string under scrutiny, and %esi to the string we	*/
+/* are hoping to match it up with. In actuality, %esi and %edi are	*/
+/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is	*/
+/* initialized to -(MAX_MATCH_8 - scanalign).				*/
+
+		movl	window(%esp), %esi
+		movl	scan(%esp), %edi
+		addl	%ecx, %esi
+		movl	scanalign(%esp), %eax
+		movl	$(-MAX_MATCH_8), %edx
+		lea	MAX_MATCH_8(%edi,%eax), %edi
+		lea	MAX_MATCH_8(%esi,%eax), %esi
+
+/* Test the strings for equality, 8 bytes at a time. At the end,
+ * adjust %edx so that it is offset to the exact byte that mismatched.
+ *
+ * We already know at this point that the first three bytes of the
+ * strings match each other, and they can be safely passed over before
+ * starting the compare loop. So what this code does is skip over 0-3
+ * bytes, as much as necessary in order to dword-align the %edi
+ * pointer. (%esi will still be misaligned three times out of four.)
+ *
+ * It should be confessed that this loop usually does not represent
+ * much of the total running time. Replacing it with a more
+ * straightforward "rep cmpsb" would not drastically degrade
+ * performance.
+ */
+LoopCmps:
+		movl	(%esi,%edx), %eax
+		xorl	(%edi,%edx), %eax
+		jnz	LeaveLoopCmps
+		movl	4(%esi,%edx), %eax
+		xorl	4(%edi,%edx), %eax
+		jnz	LeaveLoopCmps4
+		addl	$8, %edx
+		jnz	LoopCmps
+		jmp	LenMaximum
+LeaveLoopCmps4:	addl	$4, %edx
+LeaveLoopCmps:	testl	$0x0000FFFF, %eax
+		jnz	LenLower
+		addl	$2, %edx
+		shrl	$16, %eax
+LenLower:	subb	$1, %al
+		adcl	$0, %edx
+
+/* Calculate the length of the match. If it is longer than MAX_MATCH,	*/
+/* then automatically accept it as the best possible match and leave.	*/
+
+		lea	(%edi,%edx), %eax
+		movl	scan(%esp), %edi
+		subl	%edi, %eax
+		cmpl	$MAX_MATCH, %eax
+		jge	LenMaximum
+
+/* If the length of the match is not longer than the best match we	*/
+/* have so far, then forget it and return to the lookup loop.		*/
+
+		movl	deflatestate(%esp), %edx
+		movl	bestlen(%esp), %ebx
+		cmpl	%ebx, %eax
+		jg	LongerMatch
+		movl	windowbestlen(%esp), %esi
+		movl	dsPrev(%edx), %edi
+		movl	scanend(%esp), %ebx
+		movl	chainlenwmask(%esp), %edx
+		jmp	LookupLoop
+
+/*         s->match_start = cur_match;					*/
+/*         best_len = len;						*/
+/*         if (len >= nice_match) break;				*/
+/*         scan_end = *(ushf*)(scan+best_len-1);			*/
+
+LongerMatch:	movl	nicematch(%esp), %ebx
+		movl	%eax, bestlen(%esp)
+		movl	%ecx, dsMatchStart(%edx)
+		cmpl	%ebx, %eax
+		jge	LeaveNow
+		movl	window(%esp), %esi
+		addl	%eax, %esi
+		movl	%esi, windowbestlen(%esp)
+		movzwl	-1(%edi,%eax), %ebx
+		movl	dsPrev(%edx), %edi
+		movl	%ebx, scanend(%esp)
+		movl	chainlenwmask(%esp), %edx
+		jmp	LookupLoop
+
+/* Accept the current string, with the maximum possible length.		*/
+
+LenMaximum:	movl	deflatestate(%esp), %edx
+		movl	$MAX_MATCH, bestlen(%esp)
+		movl	%ecx, dsMatchStart(%edx)
+
+/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len;		*/
+/* return s->lookahead;							*/
+
+LeaveNow:
+		movl	deflatestate(%esp), %edx
+		movl	bestlen(%esp), %ebx
+		movl	dsLookahead(%edx), %eax
+		cmpl	%eax, %ebx
+		jg	LookaheadRet
+		movl	%ebx, %eax
+LookaheadRet:
+
+/* Restore the stack and return from whence we came.			*/
+
+		addl	$LocalVarsSize, %esp
+		.cfi_def_cfa_offset 20
+		popl	%ebx
+		.cfi_def_cfa_offset 16
+		popl	%esi
+		.cfi_def_cfa_offset 12
+		popl	%edi
+		.cfi_def_cfa_offset 8
+		popl	%ebp
+		.cfi_def_cfa_offset 4
+.cfi_endproc
+match_init:	ret
diff --git a/compat/zlib/contrib/blast/Makefile b/compat/zlib/contrib/blast/Makefile
new file mode 100644
index 0000000..9be80ba
--- /dev/null
+++ b/compat/zlib/contrib/blast/Makefile
@@ -0,0 +1,8 @@
+blast: blast.c blast.h
+	cc -DTEST -o blast blast.c
+
+test: blast
+	blast < test.pk | cmp - test.txt
+
+clean:
+	rm -f blast blast.o
diff --git a/compat/zlib/contrib/blast/README b/compat/zlib/contrib/blast/README
new file mode 100644
index 0000000..e3a60b3
--- /dev/null
+++ b/compat/zlib/contrib/blast/README
@@ -0,0 +1,4 @@
+Read blast.h for purpose and usage.
+
+Mark Adler
+madler@alumni.caltech.edu
diff --git a/compat/zlib/contrib/blast/blast.c b/compat/zlib/contrib/blast/blast.c
new file mode 100644
index 0000000..e6e6590
--- /dev/null
+++ b/compat/zlib/contrib/blast/blast.c
@@ -0,0 +1,466 @@
+/* blast.c
+ * Copyright (C) 2003, 2012, 2013 Mark Adler
+ * For conditions of distribution and use, see copyright notice in blast.h
+ * version 1.3, 24 Aug 2013
+ *
+ * blast.c decompresses data compressed by the PKWare Compression Library.
+ * This function provides functionality similar to the explode() function of
+ * the PKWare library, hence the name "blast".
+ *
+ * This decompressor is based on the excellent format description provided by
+ * Ben Rudiak-Gould in comp.compression on August 13, 2001.  Interestingly, the
+ * example Ben provided in the post is incorrect.  The distance 110001 should
+ * instead be 111000.  When corrected, the example byte stream becomes:
+ *
+ *    00 04 82 24 25 8f 80 7f
+ *
+ * which decompresses to "AIAIAIAIAIAIA" (without the quotes).
+ */
+
+/*
+ * Change history:
+ *
+ * 1.0  12 Feb 2003     - First version
+ * 1.1  16 Feb 2003     - Fixed distance check for > 4 GB uncompressed data
+ * 1.2  24 Oct 2012     - Add note about using binary mode in stdio
+ *                      - Fix comparisons of differently signed integers
+ * 1.3  24 Aug 2013     - Return unused input from blast()
+ *                      - Fix test code to correctly report unused input
+ *                      - Enable the provision of initial input to blast()
+ */
+
+#include <stddef.h>             /* for NULL */
+#include <setjmp.h>             /* for setjmp(), longjmp(), and jmp_buf */
+#include "blast.h"              /* prototype for blast() */
+
+#define local static            /* for local function definitions */
+#define MAXBITS 13              /* maximum code length */
+#define MAXWIN 4096             /* maximum window size */
+
+/* input and output state */
+struct state {
+    /* input state */
+    blast_in infun;             /* input function provided by user */
+    void *inhow;                /* opaque information passed to infun() */
+    unsigned char *in;          /* next input location */
+    unsigned left;              /* available input at in */
+    int bitbuf;                 /* bit buffer */
+    int bitcnt;                 /* number of bits in bit buffer */
+
+    /* input limit error return state for bits() and decode() */
+    jmp_buf env;
+
+    /* output state */
+    blast_out outfun;           /* output function provided by user */
+    void *outhow;               /* opaque information passed to outfun() */
+    unsigned next;              /* index of next write location in out[] */
+    int first;                  /* true to check distances (for first 4K) */
+    unsigned char out[MAXWIN];  /* output buffer and sliding window */
+};
+
+/*
+ * Return need bits from the input stream.  This always leaves less than
+ * eight bits in the buffer.  bits() works properly for need == 0.
+ *
+ * Format notes:
+ *
+ * - Bits are stored in bytes from the least significant bit to the most
+ *   significant bit.  Therefore bits are dropped from the bottom of the bit
+ *   buffer, using shift right, and new bytes are appended to the top of the
+ *   bit buffer, using shift left.
+ */
+local int bits(struct state *s, int need)
+{
+    int val;            /* bit accumulator */
+
+    /* load at least need bits into val */
+    val = s->bitbuf;
+    while (s->bitcnt < need) {
+        if (s->left == 0) {
+            s->left = s->infun(s->inhow, &(s->in));
+            if (s->left == 0) longjmp(s->env, 1);       /* out of input */
+        }
+        val |= (int)(*(s->in)++) << s->bitcnt;          /* load eight bits */
+        s->left--;
+        s->bitcnt += 8;
+    }
+
+    /* drop need bits and update buffer, always zero to seven bits left */
+    s->bitbuf = val >> need;
+    s->bitcnt -= need;
+
+    /* return need bits, zeroing the bits above that */
+    return val & ((1 << need) - 1);
+}
+
+/*
+ * Huffman code decoding tables.  count[1..MAXBITS] is the number of symbols of
+ * each length, which for a canonical code are stepped through in order.
+ * symbol[] are the symbol values in canonical order, where the number of
+ * entries is the sum of the counts in count[].  The decoding process can be
+ * seen in the function decode() below.
+ */
+struct huffman {
+    short *count;       /* number of symbols of each length */
+    short *symbol;      /* canonically ordered symbols */
+};
+
+/*
+ * Decode a code from the stream s using huffman table h.  Return the symbol or
+ * a negative value if there is an error.  If all of the lengths are zero, i.e.
+ * an empty code, or if the code is incomplete and an invalid code is received,
+ * then -9 is returned after reading MAXBITS bits.
+ *
+ * Format notes:
+ *
+ * - The codes as stored in the compressed data are bit-reversed relative to
+ *   a simple integer ordering of codes of the same lengths.  Hence below the
+ *   bits are pulled from the compressed data one at a time and used to
+ *   build the code value reversed from what is in the stream in order to
+ *   permit simple integer comparisons for decoding.
+ *
+ * - The first code for the shortest length is all ones.  Subsequent codes of
+ *   the same length are simply integer decrements of the previous code.  When
+ *   moving up a length, a one bit is appended to the code.  For a complete
+ *   code, the last code of the longest length will be all zeros.  To support
+ *   this ordering, the bits pulled during decoding are inverted to apply the
+ *   more "natural" ordering starting with all zeros and incrementing.
+ */
+local int decode(struct state *s, struct huffman *h)
+{
+    int len;            /* current number of bits in code */
+    int code;           /* len bits being decoded */
+    int first;          /* first code of length len */
+    int count;          /* number of codes of length len */
+    int index;          /* index of first code of length len in symbol table */
+    int bitbuf;         /* bits from stream */
+    int left;           /* bits left in next or left to process */
+    short *next;        /* next number of codes */
+
+    bitbuf = s->bitbuf;
+    left = s->bitcnt;
+    code = first = index = 0;
+    len = 1;
+    next = h->count + 1;
+    while (1) {
+        while (left--) {
+            code |= (bitbuf & 1) ^ 1;   /* invert code */
+            bitbuf >>= 1;
+            count = *next++;
+            if (code < first + count) { /* if length len, return symbol */
+                s->bitbuf = bitbuf;
+                s->bitcnt = (s->bitcnt - len) & 7;
+                return h->symbol[index + (code - first)];
+            }
+            index += count;             /* else update for next length */
+            first += count;
+            first <<= 1;
+            code <<= 1;
+            len++;
+        }
+        left = (MAXBITS+1) - len;
+        if (left == 0) break;
+        if (s->left == 0) {
+            s->left = s->infun(s->inhow, &(s->in));
+            if (s->left == 0) longjmp(s->env, 1);       /* out of input */
+        }
+        bitbuf = *(s->in)++;
+        s->left--;
+        if (left > 8) left = 8;
+    }
+    return -9;                          /* ran out of codes */
+}
+
+/*
+ * Given a list of repeated code lengths rep[0..n-1], where each byte is a
+ * count (high four bits + 1) and a code length (low four bits), generate the
+ * list of code lengths.  This compaction reduces the size of the object code.
+ * Then given the list of code lengths length[0..n-1] representing a canonical
+ * Huffman code for n symbols, construct the tables required to decode those
+ * codes.  Those tables are the number of codes of each length, and the symbols
+ * sorted by length, retaining their original order within each length.  The
+ * return value is zero for a complete code set, negative for an over-
+ * subscribed code set, and positive for an incomplete code set.  The tables
+ * can be used if the return value is zero or positive, but they cannot be used
+ * if the return value is negative.  If the return value is zero, it is not
+ * possible for decode() using that table to return an error--any stream of
+ * enough bits will resolve to a symbol.  If the return value is positive, then
+ * it is possible for decode() using that table to return an error for received
+ * codes past the end of the incomplete lengths.
+ */
+local int construct(struct huffman *h, const unsigned char *rep, int n)
+{
+    int symbol;         /* current symbol when stepping through length[] */
+    int len;            /* current length when stepping through h->count[] */
+    int left;           /* number of possible codes left of current length */
+    short offs[MAXBITS+1];      /* offsets in symbol table for each length */
+    short length[256];  /* code lengths */
+
+    /* convert compact repeat counts into symbol bit length list */
+    symbol = 0;
+    do {
+        len = *rep++;
+        left = (len >> 4) + 1;
+        len &= 15;
+        do {
+            length[symbol++] = len;
+        } while (--left);
+    } while (--n);
+    n = symbol;
+
+    /* count number of codes of each length */
+    for (len = 0; len <= MAXBITS; len++)
+        h->count[len] = 0;
+    for (symbol = 0; symbol < n; symbol++)
+        (h->count[length[symbol]])++;   /* assumes lengths are within bounds */
+    if (h->count[0] == n)               /* no codes! */
+        return 0;                       /* complete, but decode() will fail */
+
+    /* check for an over-subscribed or incomplete set of lengths */
+    left = 1;                           /* one possible code of zero length */
+    for (len = 1; len <= MAXBITS; len++) {
+        left <<= 1;                     /* one more bit, double codes left */
+        left -= h->count[len];          /* deduct count from possible codes */
+        if (left < 0) return left;      /* over-subscribed--return negative */
+    }                                   /* left > 0 means incomplete */
+
+    /* generate offsets into symbol table for each length for sorting */
+    offs[1] = 0;
+    for (len = 1; len < MAXBITS; len++)
+        offs[len + 1] = offs[len] + h->count[len];
+
+    /*
+     * put symbols in table sorted by length, by symbol order within each
+     * length
+     */
+    for (symbol = 0; symbol < n; symbol++)
+        if (length[symbol] != 0)
+            h->symbol[offs[length[symbol]]++] = symbol;
+
+    /* return zero for complete set, positive for incomplete set */
+    return left;
+}
+
+/*
+ * Decode PKWare Compression Library stream.
+ *
+ * Format notes:
+ *
+ * - First byte is 0 if literals are uncoded or 1 if they are coded.  Second
+ *   byte is 4, 5, or 6 for the number of extra bits in the distance code.
+ *   This is the base-2 logarithm of the dictionary size minus six.
+ *
+ * - Compressed data is a combination of literals and length/distance pairs
+ *   terminated by an end code.  Literals are either Huffman coded or
+ *   uncoded bytes.  A length/distance pair is a coded length followed by a
+ *   coded distance to represent a string that occurs earlier in the
+ *   uncompressed data that occurs again at the current location.
+ *
+ * - A bit preceding a literal or length/distance pair indicates which comes
+ *   next, 0 for literals, 1 for length/distance.
+ *
+ * - If literals are uncoded, then the next eight bits are the literal, in the
+ *   normal bit order in the stream, i.e. no bit-reversal is needed. Similarly,
+ *   no bit reversal is needed for either the length extra bits or the distance
+ *   extra bits.
+ *
+ * - Literal bytes are simply written to the output.  A length/distance pair is
+ *   an instruction to copy previously uncompressed bytes to the output.  The
+ *   copy is from distance bytes back in the output stream, copying for length
+ *   bytes.
+ *
+ * - Distances pointing before the beginning of the output data are not
+ *   permitted.
+ *
+ * - Overlapped copies, where the length is greater than the distance, are
+ *   allowed and common.  For example, a distance of one and a length of 518
+ *   simply copies the last byte 518 times.  A distance of four and a length of
+ *   twelve copies the last four bytes three times.  A simple forward copy
+ *   ignoring whether the length is greater than the distance or not implements
+ *   this correctly.
+ */
+local int decomp(struct state *s)
+{
+    int lit;            /* true if literals are coded */
+    int dict;           /* log2(dictionary size) - 6 */
+    int symbol;         /* decoded symbol, extra bits for distance */
+    int len;            /* length for copy */
+    unsigned dist;      /* distance for copy */
+    int copy;           /* copy counter */
+    unsigned char *from, *to;   /* copy pointers */
+    static int virgin = 1;                              /* build tables once */
+    static short litcnt[MAXBITS+1], litsym[256];        /* litcode memory */
+    static short lencnt[MAXBITS+1], lensym[16];         /* lencode memory */
+    static short distcnt[MAXBITS+1], distsym[64];       /* distcode memory */
+    static struct huffman litcode = {litcnt, litsym};   /* length code */
+    static struct huffman lencode = {lencnt, lensym};   /* length code */
+    static struct huffman distcode = {distcnt, distsym};/* distance code */
+        /* bit lengths of literal codes */
+    static const unsigned char litlen[] = {
+        11, 124, 8, 7, 28, 7, 188, 13, 76, 4, 10, 8, 12, 10, 12, 10, 8, 23, 8,
+        9, 7, 6, 7, 8, 7, 6, 55, 8, 23, 24, 12, 11, 7, 9, 11, 12, 6, 7, 22, 5,
+        7, 24, 6, 11, 9, 6, 7, 22, 7, 11, 38, 7, 9, 8, 25, 11, 8, 11, 9, 12,
+        8, 12, 5, 38, 5, 38, 5, 11, 7, 5, 6, 21, 6, 10, 53, 8, 7, 24, 10, 27,
+        44, 253, 253, 253, 252, 252, 252, 13, 12, 45, 12, 45, 12, 61, 12, 45,
+        44, 173};
+        /* bit lengths of length codes 0..15 */
+    static const unsigned char lenlen[] = {2, 35, 36, 53, 38, 23};
+        /* bit lengths of distance codes 0..63 */
+    static const unsigned char distlen[] = {2, 20, 53, 230, 247, 151, 248};
+    static const short base[16] = {     /* base for length codes */
+        3, 2, 4, 5, 6, 7, 8, 9, 10, 12, 16, 24, 40, 72, 136, 264};
+    static const char extra[16] = {     /* extra bits for length codes */
+        0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8};
+
+    /* set up decoding tables (once--might not be thread-safe) */
+    if (virgin) {
+        construct(&litcode, litlen, sizeof(litlen));
+        construct(&lencode, lenlen, sizeof(lenlen));
+        construct(&distcode, distlen, sizeof(distlen));
+        virgin = 0;
+    }
+
+    /* read header */
+    lit = bits(s, 8);
+    if (lit > 1) return -1;
+    dict = bits(s, 8);
+    if (dict < 4 || dict > 6) return -2;
+
+    /* decode literals and length/distance pairs */
+    do {
+        if (bits(s, 1)) {
+            /* get length */
+            symbol = decode(s, &lencode);
+            len = base[symbol] + bits(s, extra[symbol]);
+            if (len == 519) break;              /* end code */
+
+            /* get distance */
+            symbol = len == 2 ? 2 : dict;
+            dist = decode(s, &distcode) << symbol;
+            dist += bits(s, symbol);
+            dist++;
+            if (s->first && dist > s->next)
+                return -3;              /* distance too far back */
+
+            /* copy length bytes from distance bytes back */
+            do {
+                to = s->out + s->next;
+                from = to - dist;
+                copy = MAXWIN;
+                if (s->next < dist) {
+                    from += copy;
+                    copy = dist;
+                }
+                copy -= s->next;
+                if (copy > len) copy = len;
+                len -= copy;
+                s->next += copy;
+                do {
+                    *to++ = *from++;
+                } while (--copy);
+                if (s->next == MAXWIN) {
+                    if (s->outfun(s->outhow, s->out, s->next)) return 1;
+                    s->next = 0;
+                    s->first = 0;
+                }
+            } while (len != 0);
+        }
+        else {
+            /* get literal and write it */
+            symbol = lit ? decode(s, &litcode) : bits(s, 8);
+            s->out[s->next++] = symbol;
+            if (s->next == MAXWIN) {
+                if (s->outfun(s->outhow, s->out, s->next)) return 1;
+                s->next = 0;
+                s->first = 0;
+            }
+        }
+    } while (1);
+    return 0;
+}
+
+/* See comments in blast.h */
+int blast(blast_in infun, void *inhow, blast_out outfun, void *outhow,
+          unsigned *left, unsigned char **in)
+{
+    struct state s;             /* input/output state */
+    int err;                    /* return value */
+
+    /* initialize input state */
+    s.infun = infun;
+    s.inhow = inhow;
+    if (left != NULL && *left) {
+        s.left = *left;
+        s.in = *in;
+    }
+    else
+        s.left = 0;
+    s.bitbuf = 0;
+    s.bitcnt = 0;
+
+    /* initialize output state */
+    s.outfun = outfun;
+    s.outhow = outhow;
+    s.next = 0;
+    s.first = 1;
+
+    /* return if bits() or decode() tries to read past available input */
+    if (setjmp(s.env) != 0)             /* if came back here via longjmp(), */
+        err = 2;                        /*  then skip decomp(), return error */
+    else
+        err = decomp(&s);               /* decompress */
+
+    /* return unused input */
+    if (left != NULL)
+        *left = s.left;
+    if (in != NULL)
+        *in = s.left ? s.in : NULL;
+
+    /* write any leftover output and update the error code if needed */
+    if (err != 1 && s.next && s.outfun(s.outhow, s.out, s.next) && err == 0)
+        err = 1;
+    return err;
+}
+
+#ifdef TEST
+/* Example of how to use blast() */
+#include <stdio.h>
+#include <stdlib.h>
+
+#define CHUNK 16384
+
+local unsigned inf(void *how, unsigned char **buf)
+{
+    static unsigned char hold[CHUNK];
+
+    *buf = hold;
+    return fread(hold, 1, CHUNK, (FILE *)how);
+}
+
+local int outf(void *how, unsigned char *buf, unsigned len)
+{
+    return fwrite(buf, 1, len, (FILE *)how) != len;
+}
+
+/* Decompress a PKWare Compression Library stream from stdin to stdout */
+int main(void)
+{
+    int ret;
+    unsigned left;
+
+    /* decompress to stdout */
+    left = 0;
+    ret = blast(inf, stdin, outf, stdout, &left, NULL);
+    if (ret != 0)
+        fprintf(stderr, "blast error: %d\n", ret);
+
+    /* count any leftover bytes */
+    while (getchar() != EOF)
+        left++;
+    if (left)
+        fprintf(stderr, "blast warning: %u unused bytes of input\n", left);
+
+    /* return blast() error code */
+    return ret;
+}
+#endif
diff --git a/compat/zlib/contrib/blast/blast.h b/compat/zlib/contrib/blast/blast.h
new file mode 100644
index 0000000..ef8544c
--- /dev/null
+++ b/compat/zlib/contrib/blast/blast.h
@@ -0,0 +1,83 @@
+/* blast.h -- interface for blast.c
+  Copyright (C) 2003, 2012, 2013 Mark Adler
+  version 1.3, 24 Aug 2013
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the author be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Mark Adler    madler@alumni.caltech.edu
+ */
+
+
+/*
+ * blast() decompresses the PKWare Data Compression Library (DCL) compressed
+ * format.  It provides the same functionality as the explode() function in
+ * that library.  (Note: PKWare overused the "implode" verb, and the format
+ * used by their library implode() function is completely different and
+ * incompatible with the implode compression method supported by PKZIP.)
+ *
+ * The binary mode for stdio functions should be used to assure that the
+ * compressed data is not corrupted when read or written.  For example:
+ * fopen(..., "rb") and fopen(..., "wb").
+ */
+
+
+typedef unsigned (*blast_in)(void *how, unsigned char **buf);
+typedef int (*blast_out)(void *how, unsigned char *buf, unsigned len);
+/* Definitions for input/output functions passed to blast().  See below for
+ * what the provided functions need to do.
+ */
+
+
+int blast(blast_in infun, void *inhow, blast_out outfun, void *outhow,
+          unsigned *left, unsigned char **in);
+/* Decompress input to output using the provided infun() and outfun() calls.
+ * On success, the return value of blast() is zero.  If there is an error in
+ * the source data, i.e. it is not in the proper format, then a negative value
+ * is returned.  If there is not enough input available or there is not enough
+ * output space, then a positive error is returned.
+ *
+ * The input function is invoked: len = infun(how, &buf), where buf is set by
+ * infun() to point to the input buffer, and infun() returns the number of
+ * available bytes there.  If infun() returns zero, then blast() returns with
+ * an input error.  (blast() only asks for input if it needs it.)  inhow is for
+ * use by the application to pass an input descriptor to infun(), if desired.
+ *
+ * If left and in are not NULL and *left is not zero when blast() is called,
+ * then the *left bytes at *in are consumed for input before infun() is used.
+ *
+ * The output function is invoked: err = outfun(how, buf, len), where the bytes
+ * to be written are buf[0..len-1].  If err is not zero, then blast() returns
+ * with an output error.  outfun() is always called with len <= 4096.  outhow
+ * is for use by the application to pass an output descriptor to outfun(), if
+ * desired.
+ *
+ * If there is any unused input, *left is set to the number of bytes that were
+ * read and *in points to them.  Otherwise *left is set to zero and *in is set
+ * to NULL.  If left or in are NULL, then they are not set.
+ *
+ * The return codes are:
+ *
+ *   2:  ran out of input before completing decompression
+ *   1:  output error before completing decompression
+ *   0:  successful decompression
+ *  -1:  literal flag not zero or one
+ *  -2:  dictionary size not in 4..6
+ *  -3:  distance is too far back
+ *
+ * At the bottom of blast.c is an example program that uses blast() that can be
+ * compiled to produce a command-line decompression filter by defining TEST.
+ */
diff --git a/compat/zlib/contrib/blast/test.pk b/compat/zlib/contrib/blast/test.pk
new file mode 100644
index 0000000..be10b2b
--- /dev/null
+++ b/compat/zlib/contrib/blast/test.pk
diff --git a/compat/zlib/contrib/blast/test.txt b/compat/zlib/contrib/blast/test.txt
new file mode 100644
index 0000000..bfdf1c5
--- /dev/null
+++ b/compat/zlib/contrib/blast/test.txt
@@ -0,0 +1 @@
+AIAIAIAIAIAIA
+\ No newline at end of file
diff --git a/compat/zlib/contrib/delphi/ZLib.pas b/compat/zlib/contrib/delphi/ZLib.pas
new file mode 100644
index 0000000..93fa4c9
--- /dev/null
+++ b/compat/zlib/contrib/delphi/ZLib.pas
@@ -0,0 +1,557 @@
+{*******************************************************}
+{                                                       }
+{       Borland Delphi Supplemental Components          }
+{       ZLIB Data Compression Interface Unit            }
+{                                                       }
+{       Copyright (c) 1997,99 Borland Corporation       }
+{                                                       }
+{*******************************************************}
+
+{ Updated for zlib 1.2.x by Cosmin Truta <cosmint@cs.ubbcluj.ro> }
+
+unit ZLib;
+
+interface
+
+uses SysUtils, Classes;
+
+type
+  TAlloc = function (AppData: Pointer; Items, Size: Integer): Pointer; cdecl;
+  TFree = procedure (AppData, Block: Pointer); cdecl;
+
+  // Internal structure.  Ignore.
+  TZStreamRec = packed record
+    next_in: PChar;       // next input byte
+    avail_in: Integer;    // number of bytes available at next_in
+    total_in: Longint;    // total nb of input bytes read so far
+
+    next_out: PChar;      // next output byte should be put here
+    avail_out: Integer;   // remaining free space at next_out
+    total_out: Longint;   // total nb of bytes output so far
+
+    msg: PChar;           // last error message, NULL if no error
+    internal: Pointer;    // not visible by applications
+
+    zalloc: TAlloc;       // used to allocate the internal state
+    zfree: TFree;         // used to free the internal state
+    AppData: Pointer;     // private data object passed to zalloc and zfree
+
+    data_type: Integer;   // best guess about the data type: ascii or binary
+    adler: Longint;       // adler32 value of the uncompressed data
+    reserved: Longint;    // reserved for future use
+  end;
+
+  // Abstract ancestor class
+  TCustomZlibStream = class(TStream)
+  private
+    FStrm: TStream;
+    FStrmPos: Integer;
+    FOnProgress: TNotifyEvent;
+    FZRec: TZStreamRec;
+    FBuffer: array [Word] of Char;
+  protected
+    procedure Progress(Sender: TObject); dynamic;
+    property OnProgress: TNotifyEvent read FOnProgress write FOnProgress;
+    constructor Create(Strm: TStream);
+  end;
+
+{ TCompressionStream compresses data on the fly as data is written to it, and
+  stores the compressed data to another stream.
+
+  TCompressionStream is write-only and strictly sequential. Reading from the
+  stream will raise an exception. Using Seek to move the stream pointer
+  will raise an exception.
+
+  Output data is cached internally, written to the output stream only when
+  the internal output buffer is full.  All pending output data is flushed
+  when the stream is destroyed.
+
+  The Position property returns the number of uncompressed bytes of
+  data that have been written to the stream so far.
+
+  CompressionRate returns the on-the-fly percentage by which the original
+  data has been compressed:  (1 - (CompressedBytes / UncompressedBytes)) * 100
+  If raw data size = 100 and compressed data size = 25, the CompressionRate
+  is 75%
+
+  The OnProgress event is called each time the output buffer is filled and
+  written to the output stream.  This is useful for updating a progress
+  indicator when you are writing a large chunk of data to the compression
+  stream in a single call.}
+
+
+  TCompressionLevel = (clNone, clFastest, clDefault, clMax);
+
+  TCompressionStream = class(TCustomZlibStream)
+  private
+    function GetCompressionRate: Single;
+  public
+    constructor Create(CompressionLevel: TCompressionLevel; Dest: TStream);
+    destructor Destroy; override;
+    function Read(var Buffer; Count: Longint): Longint; override;
+    function Write(const Buffer; Count: Longint): Longint; override;
+    function Seek(Offset: Longint; Origin: Word): Longint; override;
+    property CompressionRate: Single read GetCompressionRate;
+    property OnProgress;
+  end;
+
+{ TDecompressionStream decompresses data on the fly as data is read from it.
+
+  Compressed data comes from a separate source stream.  TDecompressionStream
+  is read-only and unidirectional; you can seek forward in the stream, but not
+  backwards.  The special case of setting the stream position to zero is
+  allowed.  Seeking forward decompresses data until the requested position in
+  the uncompressed data has been reached.  Seeking backwards, seeking relative
+  to the end of the stream, requesting the size of the stream, and writing to
+  the stream will raise an exception.
+
+  The Position property returns the number of bytes of uncompressed data that
+  have been read from the stream so far.
+
+  The OnProgress event is called each time the internal input buffer of
+  compressed data is exhausted and the next block is read from the input stream.
+  This is useful for updating a progress indicator when you are reading a
+  large chunk of data from the decompression stream in a single call.}
+
+  TDecompressionStream = class(TCustomZlibStream)
+  public
+    constructor Create(Source: TStream);
+    destructor Destroy; override;
+    function Read(var Buffer; Count: Longint): Longint; override;
+    function Write(const Buffer; Count: Longint): Longint; override;
+    function Seek(Offset: Longint; Origin: Word): Longint; override;
+    property OnProgress;
+  end;
+
+
+
+{ CompressBuf compresses data, buffer to buffer, in one call.
+   In: InBuf = ptr to compressed data
+       InBytes = number of bytes in InBuf
+  Out: OutBuf = ptr to newly allocated buffer containing decompressed data
+       OutBytes = number of bytes in OutBuf   }
+procedure CompressBuf(const InBuf: Pointer; InBytes: Integer;
+                      out OutBuf: Pointer; out OutBytes: Integer);
+
+
+{ DecompressBuf decompresses data, buffer to buffer, in one call.
+   In: InBuf = ptr to compressed data
+       InBytes = number of bytes in InBuf
+       OutEstimate = zero, or est. size of the decompressed data
+  Out: OutBuf = ptr to newly allocated buffer containing decompressed data
+       OutBytes = number of bytes in OutBuf   }
+procedure DecompressBuf(const InBuf: Pointer; InBytes: Integer;
+ OutEstimate: Integer; out OutBuf: Pointer; out OutBytes: Integer);
+
+{ DecompressToUserBuf decompresses data, buffer to buffer, in one call.
+   In: InBuf = ptr to compressed data
+       InBytes = number of bytes in InBuf
+  Out: OutBuf = ptr to user-allocated buffer to contain decompressed data
+       BufSize = number of bytes in OutBuf   }
+procedure DecompressToUserBuf(const InBuf: Pointer; InBytes: Integer;
+  const OutBuf: Pointer; BufSize: Integer);
+
+const
+  zlib_version = '1.3.1';
+
+type
+  EZlibError = class(Exception);
+  ECompressionError = class(EZlibError);
+  EDecompressionError = class(EZlibError);
+
+implementation
+
+uses ZLibConst;
+
+const
+  Z_NO_FLUSH      = 0;
+  Z_PARTIAL_FLUSH = 1;
+  Z_SYNC_FLUSH    = 2;
+  Z_FULL_FLUSH    = 3;
+  Z_FINISH        = 4;
+
+  Z_OK            = 0;
+  Z_STREAM_END    = 1;
+  Z_NEED_DICT     = 2;
+  Z_ERRNO         = (-1);
+  Z_STREAM_ERROR  = (-2);
+  Z_DATA_ERROR    = (-3);
+  Z_MEM_ERROR     = (-4);
+  Z_BUF_ERROR     = (-5);
+  Z_VERSION_ERROR = (-6);
+
+  Z_NO_COMPRESSION       =   0;
+  Z_BEST_SPEED           =   1;
+  Z_BEST_COMPRESSION     =   9;
+  Z_DEFAULT_COMPRESSION  = (-1);
+
+  Z_FILTERED            = 1;
+  Z_HUFFMAN_ONLY        = 2;
+  Z_RLE                 = 3;
+  Z_DEFAULT_STRATEGY    = 0;
+
+  Z_BINARY   = 0;
+  Z_ASCII    = 1;
+  Z_UNKNOWN  = 2;
+
+  Z_DEFLATED = 8;
+
+
+{$L adler32.obj}
+{$L compress.obj}
+{$L crc32.obj}
+{$L deflate.obj}
+{$L infback.obj}
+{$L inffast.obj}
+{$L inflate.obj}
+{$L inftrees.obj}
+{$L trees.obj}
+{$L uncompr.obj}
+{$L zutil.obj}
+
+procedure adler32; external;
+procedure compressBound; external;
+procedure crc32; external;
+procedure deflateInit2_; external;
+procedure deflateParams; external;
+
+function _malloc(Size: Integer): Pointer; cdecl;
+begin
+  Result := AllocMem(Size);
+end;
+
+procedure _free(Block: Pointer); cdecl;
+begin
+  FreeMem(Block);
+end;
+
+procedure _memset(P: Pointer; B: Byte; count: Integer); cdecl;
+begin
+  FillChar(P^, count, B);
+end;
+
+procedure _memcpy(dest, source: Pointer; count: Integer); cdecl;
+begin
+  Move(source^, dest^, count);
+end;
+
+
+
+// deflate compresses data
+function deflateInit_(var strm: TZStreamRec; level: Integer; version: PChar;
+  recsize: Integer): Integer; external;
+function deflate(var strm: TZStreamRec; flush: Integer): Integer; external;
+function deflateEnd(var strm: TZStreamRec): Integer; external;
+
+// inflate decompresses data
+function inflateInit_(var strm: TZStreamRec; version: PChar;
+  recsize: Integer): Integer; external;
+function inflate(var strm: TZStreamRec; flush: Integer): Integer; external;
+function inflateEnd(var strm: TZStreamRec): Integer; external;
+function inflateReset(var strm: TZStreamRec): Integer; external;
+
+
+function zlibAllocMem(AppData: Pointer; Items, Size: Integer): Pointer; cdecl;
+begin
+//  GetMem(Result, Items*Size);
+  Result := AllocMem(Items * Size);
+end;
+
+procedure zlibFreeMem(AppData, Block: Pointer); cdecl;
+begin
+  FreeMem(Block);
+end;
+
+{function zlibCheck(code: Integer): Integer;
+begin
+  Result := code;
+  if code < 0 then
+    raise EZlibError.Create('error');    //!!
+end;}
+
+function CCheck(code: Integer): Integer;
+begin
+  Result := code;
+  if code < 0 then
+    raise ECompressionError.Create('error'); //!!
+end;
+
+function DCheck(code: Integer): Integer;
+begin
+  Result := code;
+  if code < 0 then
+    raise EDecompressionError.Create('error');  //!!
+end;
+
+procedure CompressBuf(const InBuf: Pointer; InBytes: Integer;
+                      out OutBuf: Pointer; out OutBytes: Integer);
+var
+  strm: TZStreamRec;
+  P: Pointer;
+begin
+  FillChar(strm, sizeof(strm), 0);
+  strm.zalloc := zlibAllocMem;
+  strm.zfree := zlibFreeMem;
+  OutBytes := ((InBytes + (InBytes div 10) + 12) + 255) and not 255;
+  GetMem(OutBuf, OutBytes);
+  try
+    strm.next_in := InBuf;
+    strm.avail_in := InBytes;
+    strm.next_out := OutBuf;
+    strm.avail_out := OutBytes;
+    CCheck(deflateInit_(strm, Z_BEST_COMPRESSION, zlib_version, sizeof(strm)));
+    try
+      while CCheck(deflate(strm, Z_FINISH)) <> Z_STREAM_END do
+      begin
+        P := OutBuf;
+        Inc(OutBytes, 256);
+        ReallocMem(OutBuf, OutBytes);
+        strm.next_out := PChar(Integer(OutBuf) + (Integer(strm.next_out) - Integer(P)));
+        strm.avail_out := 256;
+      end;
+    finally
+      CCheck(deflateEnd(strm));
+    end;
+    ReallocMem(OutBuf, strm.total_out);
+    OutBytes := strm.total_out;
+  except
+    FreeMem(OutBuf);
+    raise
+  end;
+end;
+
+
+procedure DecompressBuf(const InBuf: Pointer; InBytes: Integer;
+  OutEstimate: Integer; out OutBuf: Pointer; out OutBytes: Integer);
+var
+  strm: TZStreamRec;
+  P: Pointer;
+  BufInc: Integer;
+begin
+  FillChar(strm, sizeof(strm), 0);
+  strm.zalloc := zlibAllocMem;
+  strm.zfree := zlibFreeMem;
+  BufInc := (InBytes + 255) and not 255;
+  if OutEstimate = 0 then
+    OutBytes := BufInc
+  else
+    OutBytes := OutEstimate;
+  GetMem(OutBuf, OutBytes);
+  try
+    strm.next_in := InBuf;
+    strm.avail_in := InBytes;
+    strm.next_out := OutBuf;
+    strm.avail_out := OutBytes;
+    DCheck(inflateInit_(strm, zlib_version, sizeof(strm)));
+    try
+      while DCheck(inflate(strm, Z_NO_FLUSH)) <> Z_STREAM_END do
+      begin
+        P := OutBuf;
+        Inc(OutBytes, BufInc);
+        ReallocMem(OutBuf, OutBytes);
+        strm.next_out := PChar(Integer(OutBuf) + (Integer(strm.next_out) - Integer(P)));
+        strm.avail_out := BufInc;
+      end;
+    finally
+      DCheck(inflateEnd(strm));
+    end;
+    ReallocMem(OutBuf, strm.total_out);
+    OutBytes := strm.total_out;
+  except
+    FreeMem(OutBuf);
+    raise
+  end;
+end;
+
+procedure DecompressToUserBuf(const InBuf: Pointer; InBytes: Integer;
+  const OutBuf: Pointer; BufSize: Integer);
+var
+  strm: TZStreamRec;
+begin
+  FillChar(strm, sizeof(strm), 0);
+  strm.zalloc := zlibAllocMem;
+  strm.zfree := zlibFreeMem;
+  strm.next_in := InBuf;
+  strm.avail_in := InBytes;
+  strm.next_out := OutBuf;
+  strm.avail_out := BufSize;
+  DCheck(inflateInit_(strm, zlib_version, sizeof(strm)));
+  try
+    if DCheck(inflate(strm, Z_FINISH)) <> Z_STREAM_END then
+      raise EZlibError.CreateRes(@sTargetBufferTooSmall);
+  finally
+    DCheck(inflateEnd(strm));
+  end;
+end;
+
+// TCustomZlibStream
+
+constructor TCustomZLibStream.Create(Strm: TStream);
+begin
+  inherited Create;
+  FStrm := Strm;
+  FStrmPos := Strm.Position;
+  FZRec.zalloc := zlibAllocMem;
+  FZRec.zfree := zlibFreeMem;
+end;
+
+procedure TCustomZLibStream.Progress(Sender: TObject);
+begin
+  if Assigned(FOnProgress) then FOnProgress(Sender);
+end;
+
+
+// TCompressionStream
+
+constructor TCompressionStream.Create(CompressionLevel: TCompressionLevel;
+  Dest: TStream);
+const
+  Levels: array [TCompressionLevel] of ShortInt =
+    (Z_NO_COMPRESSION, Z_BEST_SPEED, Z_DEFAULT_COMPRESSION, Z_BEST_COMPRESSION);
+begin
+  inherited Create(Dest);
+  FZRec.next_out := FBuffer;
+  FZRec.avail_out := sizeof(FBuffer);
+  CCheck(deflateInit_(FZRec, Levels[CompressionLevel], zlib_version, sizeof(FZRec)));
+end;
+
+destructor TCompressionStream.Destroy;
+begin
+  FZRec.next_in := nil;
+  FZRec.avail_in := 0;
+  try
+    if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos;
+    while (CCheck(deflate(FZRec, Z_FINISH)) <> Z_STREAM_END)
+      and (FZRec.avail_out = 0) do
+    begin
+      FStrm.WriteBuffer(FBuffer, sizeof(FBuffer));
+      FZRec.next_out := FBuffer;
+      FZRec.avail_out := sizeof(FBuffer);
+    end;
+    if FZRec.avail_out < sizeof(FBuffer) then
+      FStrm.WriteBuffer(FBuffer, sizeof(FBuffer) - FZRec.avail_out);
+  finally
+    deflateEnd(FZRec);
+  end;
+  inherited Destroy;
+end;
+
+function TCompressionStream.Read(var Buffer; Count: Longint): Longint;
+begin
+  raise ECompressionError.CreateRes(@sInvalidStreamOp);
+end;
+
+function TCompressionStream.Write(const Buffer; Count: Longint): Longint;
+begin
+  FZRec.next_in := @Buffer;
+  FZRec.avail_in := Count;
+  if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos;
+  while (FZRec.avail_in > 0) do
+  begin
+    CCheck(deflate(FZRec, 0));
+    if FZRec.avail_out = 0 then
+    begin
+      FStrm.WriteBuffer(FBuffer, sizeof(FBuffer));
+      FZRec.next_out := FBuffer;
+      FZRec.avail_out := sizeof(FBuffer);
+      FStrmPos := FStrm.Position;
+      Progress(Self);
+    end;
+  end;
+  Result := Count;
+end;
+
+function TCompressionStream.Seek(Offset: Longint; Origin: Word): Longint;
+begin
+  if (Offset = 0) and (Origin = soFromCurrent) then
+    Result := FZRec.total_in
+  else
+    raise ECompressionError.CreateRes(@sInvalidStreamOp);
+end;
+
+function TCompressionStream.GetCompressionRate: Single;
+begin
+  if FZRec.total_in = 0 then
+    Result := 0
+  else
+    Result := (1.0 - (FZRec.total_out / FZRec.total_in)) * 100.0;
+end;
+
+
+// TDecompressionStream
+
+constructor TDecompressionStream.Create(Source: TStream);
+begin
+  inherited Create(Source);
+  FZRec.next_in := FBuffer;
+  FZRec.avail_in := 0;
+  DCheck(inflateInit_(FZRec, zlib_version, sizeof(FZRec)));
+end;
+
+destructor TDecompressionStream.Destroy;
+begin
+  FStrm.Seek(-FZRec.avail_in, 1);
+  inflateEnd(FZRec);
+  inherited Destroy;
+end;
+
+function TDecompressionStream.Read(var Buffer; Count: Longint): Longint;
+begin
+  FZRec.next_out := @Buffer;
+  FZRec.avail_out := Count;
+  if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos;
+  while (FZRec.avail_out > 0) do
+  begin
+    if FZRec.avail_in = 0 then
+    begin
+      FZRec.avail_in := FStrm.Read(FBuffer, sizeof(FBuffer));
+      if FZRec.avail_in = 0 then
+      begin
+        Result := Count - FZRec.avail_out;
+        Exit;
+      end;
+      FZRec.next_in := FBuffer;
+      FStrmPos := FStrm.Position;
+      Progress(Self);
+    end;
+    CCheck(inflate(FZRec, 0));
+  end;
+  Result := Count;
+end;
+
+function TDecompressionStream.Write(const Buffer; Count: Longint): Longint;
+begin
+  raise EDecompressionError.CreateRes(@sInvalidStreamOp);
+end;
+
+function TDecompressionStream.Seek(Offset: Longint; Origin: Word): Longint;
+var
+  I: Integer;
+  Buf: array [0..4095] of Char;
+begin
+  if (Offset = 0) and (Origin = soFromBeginning) then
+  begin
+    DCheck(inflateReset(FZRec));
+    FZRec.next_in := FBuffer;
+    FZRec.avail_in := 0;
+    FStrm.Position := 0;
+    FStrmPos := 0;
+  end
+  else if ( (Offset >= 0) and (Origin = soFromCurrent)) or
+          ( ((Offset - FZRec.total_out) > 0) and (Origin = soFromBeginning)) then
+  begin
+    if Origin = soFromBeginning then Dec(Offset, FZRec.total_out);
+    if Offset > 0 then
+    begin
+      for I := 1 to Offset div sizeof(Buf) do
+        ReadBuffer(Buf, sizeof(Buf));
+      ReadBuffer(Buf, Offset mod sizeof(Buf));
+    end;
+  end
+  else
+    raise EDecompressionError.CreateRes(@sInvalidStreamOp);
+  Result := FZRec.total_out;
+end;
+
+
+end.
diff --git a/compat/zlib/contrib/delphi/ZLibConst.pas b/compat/zlib/contrib/delphi/ZLibConst.pas
new file mode 100644
index 0000000..cdfe136
--- /dev/null
+++ b/compat/zlib/contrib/delphi/ZLibConst.pas
@@ -0,0 +1,11 @@
+unit ZLibConst;
+
+interface
+
+resourcestring
+  sTargetBufferTooSmall = 'ZLib error: target buffer may be too small';
+  sInvalidStreamOp = 'Invalid stream operation';
+
+implementation
+
+end.
diff --git a/compat/zlib/contrib/delphi/readme.txt b/compat/zlib/contrib/delphi/readme.txt
new file mode 100644
index 0000000..2dc9a8b
--- /dev/null
+++ b/compat/zlib/contrib/delphi/readme.txt
@@ -0,0 +1,76 @@
+
+Overview
+========
+
+This directory contains an update to the ZLib interface unit,
+distributed by Borland as a Delphi supplemental component.
+
+The original ZLib unit is Copyright (c) 1997,99 Borland Corp.,
+and is based on zlib version 1.0.4.  There are a series of bugs
+and security problems associated with that old zlib version, and
+we recommend the users to update their ZLib unit.
+
+
+Summary of modifications
+========================
+
+- Improved makefile, adapted to zlib version 1.2.1.
+
+- Some field types from TZStreamRec are changed from Integer to
+  Longint, for consistency with the zlib.h header, and for 64-bit
+  readiness.
+
+- The zlib_version constant is updated.
+
+- The new Z_RLE strategy has its corresponding symbolic constant.
+
+- The allocation and deallocation functions and function types
+  (TAlloc, TFree, zlibAllocMem and zlibFreeMem) are now cdecl,
+  and _malloc and _free are added as C RTL stubs.  As a result,
+  the original C sources of zlib can be compiled out of the box,
+  and linked to the ZLib unit.
+
+
+Suggestions for improvements
+============================
+
+Currently, the ZLib unit provides only a limited wrapper around
+the zlib library, and much of the original zlib functionality is
+missing.  Handling compressed file formats like ZIP/GZIP or PNG
+cannot be implemented without having this functionality.
+Applications that handle these formats are either using their own,
+duplicated code, or not using the ZLib unit at all.
+
+Here are a few suggestions:
+
+- Checksum class wrappers around adler32() and crc32(), similar
+  to the Java classes that implement the java.util.zip.Checksum
+  interface.
+
+- The ability to read and write raw deflate streams, without the
+  zlib stream header and trailer.  Raw deflate streams are used
+  in the ZIP file format.
+
+- The ability to read and write gzip streams, used in the GZIP
+  file format, and normally produced by the gzip program.
+
+- The ability to select a different compression strategy, useful
+  to PNG and MNG image compression, and to multimedia compression
+  in general.  Besides the compression level
+
+    TCompressionLevel = (clNone, clFastest, clDefault, clMax);
+
+  which, in fact, could have used the 'z' prefix and avoided
+  TColor-like symbols
+
+    TCompressionLevel = (zcNone, zcFastest, zcDefault, zcMax);
+
+  there could be a compression strategy
+
+    TCompressionStrategy = (zsDefault, zsFiltered, zsHuffmanOnly, zsRle);
+
+- ZIP and GZIP stream handling via TStreams.
+
+
+--
+Cosmin Truta <cosmint@cs.ubbcluj.ro>
diff --git a/compat/zlib/contrib/delphi/zlibd32.mak b/compat/zlib/contrib/delphi/zlibd32.mak
new file mode 100644
index 0000000..9bb00b7
--- /dev/null
+++ b/compat/zlib/contrib/delphi/zlibd32.mak
@@ -0,0 +1,99 @@
+# Makefile for zlib
+# For use with Delphi and C++ Builder under Win32
+# Updated for zlib 1.2.x by Cosmin Truta
+
+# ------------ Borland C++ ------------
+
+# This project uses the Delphi (fastcall/register) calling convention:
+LOC = -DZEXPORT=__fastcall -DZEXPORTVA=__cdecl
+
+CC = bcc32
+LD = bcc32
+AR = tlib
+# do not use "-pr" in CFLAGS
+CFLAGS = -a -d -k- -O2 $(LOC)
+LDFLAGS =
+
+
+# variables
+ZLIB_LIB = zlib.lib
+
+OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj
+OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
+OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzclose.obj+gzlib.obj+gzread.obj
+OBJP2 = +gzwrite.obj+infback.obj+inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj
+
+
+# targets
+all: $(ZLIB_LIB) example.exe minigzip.exe
+
+.c.obj:
+	$(CC) -c $(CFLAGS) $*.c
+
+adler32.obj: adler32.c zlib.h zconf.h
+
+compress.obj: compress.c zlib.h zconf.h
+
+crc32.obj: crc32.c zlib.h zconf.h crc32.h
+
+deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
+
+gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h
+
+gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h
+
+gzread.obj: gzread.c zlib.h zconf.h gzguts.h
+
+gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h
+
+infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h
+
+inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
+
+trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
+
+uncompr.obj: uncompr.c zlib.h zconf.h
+
+zutil.obj: zutil.c zutil.h zlib.h zconf.h
+
+example.obj: test/example.c zlib.h zconf.h
+
+minigzip.obj: test/minigzip.c zlib.h zconf.h
+
+
+# For the sake of the old Borland make,
+# the command line is cut to fit in the MS-DOS 128 byte limit:
+$(ZLIB_LIB): $(OBJ1) $(OBJ2)
+	-del $(ZLIB_LIB)
+	$(AR) $(ZLIB_LIB) $(OBJP1)
+	$(AR) $(ZLIB_LIB) $(OBJP2)
+
+
+# testing
+test: example.exe minigzip.exe
+	example
+	echo hello world | minigzip | minigzip -d
+
+example.exe: example.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) example.obj $(ZLIB_LIB)
+
+minigzip.exe: minigzip.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB)
+
+
+# cleanup
+clean:
+	-del *.obj
+	-del *.exe
+	-del *.lib
+	-del *.tds
+	-del zlib.bak
+	-del foo.gz
+
diff --git a/compat/zlib/contrib/dotzlib/DotZLib.build b/compat/zlib/contrib/dotzlib/DotZLib.build
new file mode 100644
index 0000000..7f90d6b
--- /dev/null
+++ b/compat/zlib/contrib/dotzlib/DotZLib.build
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<project name="DotZLib" default="build" basedir="./DotZLib">
+	<description>A .Net wrapper library around ZLib1.dll</description>
+
+	<property name="nunit.location" value="c:/program files/NUnit V2.1/bin" />
+	<property name="build.root" value="bin" />
+
+	<property name="debug" value="true" />
+	<property name="nunit" value="true" />
+
+	<property name="build.folder" value="${build.root}/debug/" if="${debug}" />
+	<property name="build.folder" value="${build.root}/release/" unless="${debug}" />
+
+	<target name="clean" description="Remove all generated files">
+		<delete dir="${build.root}" failonerror="false" />
+	</target>
+
+	<target name="build" description="compiles the source code">
+
+		<mkdir dir="${build.folder}" />
+		<csc target="library" output="${build.folder}DotZLib.dll" debug="${debug}">
+			<references basedir="${nunit.location}">
+				<includes if="${nunit}" name="nunit.framework.dll" />
+			</references>
+			<sources>
+				<includes name="*.cs" />
+				<excludes name="UnitTests.cs" unless="${nunit}" />
+			</sources>
+			<arg value="/d:nunit" if="${nunit}" />
+		</csc>
+	</target>
+
+</project>
+\ No newline at end of file
diff --git a/compat/zlib/contrib/dotzlib/DotZLib.chm b/compat/zlib/contrib/dotzlib/DotZLib.chm
new file mode 100644
index 0000000..f214a44
--- /dev/null
+++ b/compat/zlib/contrib/dotzlib/DotZLib.chm
diff --git a/compat/zlib/contrib/dotzlib/DotZLib.sln b/compat/zlib/contrib/dotzlib/DotZLib.sln
new file mode 100644
index 0000000..ac45ca0
--- /dev/null
+++ b/compat/zlib/contrib/dotzlib/DotZLib.sln
@@ -0,0 +1,21 @@
+Microsoft Visual Studio Solution File, Format Version 8.00
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DotZLib", "DotZLib\DotZLib.csproj", "{BB1EE0B1-1808-46CB-B786-949D91117FC5}"
+	ProjectSection(ProjectDependencies) = postProject
+	EndProjectSection
+EndProject
+Global
+	GlobalSection(SolutionConfiguration) = preSolution
+		Debug = Debug
+		Release = Release
+	EndGlobalSection
+	GlobalSection(ProjectConfiguration) = postSolution
+		{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Debug.ActiveCfg = Debug|.NET
+		{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Debug.Build.0 = Debug|.NET
+		{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Release.ActiveCfg = Release|.NET
+		{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Release.Build.0 = Release|.NET
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+	EndGlobalSection
+	GlobalSection(ExtensibilityAddIns) = postSolution
+	EndGlobalSection
+EndGlobal
diff --git a/compat/zlib/contrib/dotzlib/DotZLib/AssemblyInfo.cs b/compat/zlib/contrib/dotzlib/DotZLib/AssemblyInfo.cs
new file mode 100644
index 0000000..0491bfc
--- /dev/null
+++ b/compat/zlib/contrib/dotzlib/DotZLib/AssemblyInfo.cs
@@ -0,0 +1,58 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+
+//
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+//
+[assembly: AssemblyTitle("DotZLib")]
+[assembly: AssemblyDescription(".Net bindings for ZLib compression dll 1.2.x")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("Henrik Ravn")]
+[assembly: AssemblyProduct("")]
+[assembly: AssemblyCopyright("(c) 2004 by Henrik Ravn")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+//
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Revision and Build Numbers
+// by using the '*' as shown below:
+
+[assembly: AssemblyVersion("1.0.*")]
+
+//
+// In order to sign your assembly you must specify a key to use. Refer to the
+// Microsoft .NET Framework documentation for more information on assembly signing.
+//
+// Use the attributes below to control which key is used for signing.
+//
+// Notes:
+//   (*) If no key is specified, the assembly is not signed.
+//   (*) KeyName refers to a key that has been installed in the Crypto Service
+//       Provider (CSP) on your machine. KeyFile refers to a file which contains
+//       a key.
+//   (*) If the KeyFile and the KeyName values are both specified, the
+//       following processing occurs:
+//       (1) If the KeyName can be found in the CSP, that key is used.
+//       (2) If the KeyName does not exist and the KeyFile does exist, the key
+//           in the KeyFile is installed into the CSP and used.
+//   (*) In order to create a KeyFile, you can use the sn.exe (Strong Name) utility.
+//       When specifying the KeyFile, the location of the KeyFile should be
+//       relative to the project output directory which is
+//       %Project Directory%\obj\<configuration>. For example, if your KeyFile is
+//       located in the project directory, you would specify the AssemblyKeyFile
+//       attribute as [assembly: AssemblyKeyFile("..\\..\\mykey.snk")]
+//   (*) Delay Signing is an advanced option - see the Microsoft .NET Framework
+//       documentation for more information on this.
+//
+[assembly: AssemblyDelaySign(false)]
+[assembly: AssemblyKeyFile("")]
+[assembly: AssemblyKeyName("")]
diff --git a/compat/zlib/contrib/dotzlib/DotZLib/ChecksumImpl.cs b/compat/zlib/contrib/dotzlib/DotZLib/ChecksumImpl.cs
new file mode 100644
index 0000000..3149653
--- /dev/null
+++ b/compat/zlib/contrib/dotzlib/DotZLib/ChecksumImpl.cs
@@ -0,0 +1,202 @@
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Runtime.InteropServices;
+using System.Text;
+
+
+namespace DotZLib
+{
+    #region ChecksumGeneratorBase
+    /// <summary>
+    /// Implements the common functionality needed for all <see cref="ChecksumGenerator"/>s
+    /// </summary>
+    /// <example></example>
+    public abstract class ChecksumGeneratorBase : ChecksumGenerator
+    {
+        /// <summary>
+        /// The value of the current checksum
+        /// </summary>
+        protected uint _current;
+
+        /// <summary>
+        /// Initializes a new instance of the checksum generator base - the current checksum is
+        /// set to zero
+        /// </summary>
+        public ChecksumGeneratorBase()
+        {
+            _current = 0;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the checksum generator base with a specified value
+        /// </summary>
+        /// <param name="initialValue">The value to set the current checksum to</param>
+        public ChecksumGeneratorBase(uint initialValue)
+        {
+            _current = initialValue;
+        }
+
+        /// <summary>
+        /// Resets the current checksum to zero
+        /// </summary>
+        public void Reset() { _current = 0; }
+
+        /// <summary>
+        /// Gets the current checksum value
+        /// </summary>
+        public uint Value { get { return _current; } }
+
+        /// <summary>
+        /// Updates the current checksum with part of an array of bytes
+        /// </summary>
+        /// <param name="data">The data to update the checksum with</param>
+        /// <param name="offset">Where in <c>data</c> to start updating</param>
+        /// <param name="count">The number of bytes from <c>data</c> to use</param>
+        /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
+        /// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
+        /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
+        /// <remarks>All the other <c>Update</c> methods are implemented in terms of this one.
+        /// This is therefore the only method a derived class has to implement</remarks>
+        public abstract void Update(byte[] data, int offset, int count);
+
+        /// <summary>
+        /// Updates the current checksum with an array of bytes.
+        /// </summary>
+        /// <param name="data">The data to update the checksum with</param>
+        public void Update(byte[] data)
+        {
+            Update(data, 0, data.Length);
+        }
+
+        /// <summary>
+        /// Updates the current checksum with the data from a string
+        /// </summary>
+        /// <param name="data">The string to update the checksum with</param>
+        /// <remarks>The characters in the string are converted by the UTF-8 encoding</remarks>
+        public void Update(string data)
+        {
+			Update(Encoding.UTF8.GetBytes(data));
+        }
+
+        /// <summary>
+        /// Updates the current checksum with the data from a string, using a specific encoding
+        /// </summary>
+        /// <param name="data">The string to update the checksum with</param>
+        /// <param name="encoding">The encoding to use</param>
+        public void Update(string data, Encoding encoding)
+        {
+            Update(encoding.GetBytes(data));
+        }
+
+    }
+    #endregion
+
+    #region CRC32
+    /// <summary>
+    /// Implements a CRC32 checksum generator
+    /// </summary>
+    public sealed class CRC32Checksum : ChecksumGeneratorBase
+    {
+        #region DLL imports
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern uint crc32(uint crc, int data, uint length);
+
+        #endregion
+
+        /// <summary>
+        /// Initializes a new instance of the CRC32 checksum generator
+        /// </summary>
+        public CRC32Checksum() : base() {}
+
+        /// <summary>
+        /// Initializes a new instance of the CRC32 checksum generator with a specified value
+        /// </summary>
+        /// <param name="initialValue">The value to set the current checksum to</param>
+        public CRC32Checksum(uint initialValue) : base(initialValue) {}
+
+        /// <summary>
+        /// Updates the current checksum with part of an array of bytes
+        /// </summary>
+        /// <param name="data">The data to update the checksum with</param>
+        /// <param name="offset">Where in <c>data</c> to start updating</param>
+        /// <param name="count">The number of bytes from <c>data</c> to use</param>
+        /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
+        /// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
+        /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
+        public override void Update(byte[] data, int offset, int count)
+        {
+            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+            if ((offset+count) > data.Length) throw new ArgumentException();
+            GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);
+            try
+            {
+                _current = crc32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);
+            }
+            finally
+            {
+                hData.Free();
+            }
+        }
+
+    }
+    #endregion
+
+    #region Adler
+    /// <summary>
+    /// Implements a checksum generator that computes the Adler checksum on data
+    /// </summary>
+    public sealed class AdlerChecksum : ChecksumGeneratorBase
+    {
+        #region DLL imports
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern uint adler32(uint adler, int data, uint length);
+
+        #endregion
+
+        /// <summary>
+        /// Initializes a new instance of the Adler checksum generator
+        /// </summary>
+        public AdlerChecksum() : base() {}
+
+        /// <summary>
+        /// Initializes a new instance of the Adler checksum generator with a specified value
+        /// </summary>
+        /// <param name="initialValue">The value to set the current checksum to</param>
+        public AdlerChecksum(uint initialValue) : base(initialValue) {}
+
+        /// <summary>
+        /// Updates the current checksum with part of an array of bytes
+        /// </summary>
+        /// <param name="data">The data to update the checksum with</param>
+        /// <param name="offset">Where in <c>data</c> to start updating</param>
+        /// <param name="count">The number of bytes from <c>data</c> to use</param>
+        /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
+        /// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
+        /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
+        public override void Update(byte[] data, int offset, int count)
+        {
+            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+            if ((offset+count) > data.Length) throw new ArgumentException();
+            GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);
+            try
+            {
+                _current = adler32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);
+            }
+            finally
+            {
+                hData.Free();
+            }
+        }
+
+    }
+    #endregion
+
+}
+\ No newline at end of file
diff --git a/compat/zlib/contrib/dotzlib/DotZLib/CircularBuffer.cs b/compat/zlib/contrib/dotzlib/DotZLib/CircularBuffer.cs
new file mode 100644
index 0000000..e7a88b9
--- /dev/null
+++ b/compat/zlib/contrib/dotzlib/DotZLib/CircularBuffer.cs
@@ -0,0 +1,83 @@
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Diagnostics;
+
+namespace DotZLib
+{
+
+	/// <summary>
+	/// This class implements a circular buffer
+	/// </summary>
+	internal class CircularBuffer
+	{
+        #region Private data
+        private int _capacity;
+        private int _head;
+        private int _tail;
+        private int _size;
+        private byte[] _buffer;
+        #endregion
+
+        public CircularBuffer(int capacity)
+        {
+            Debug.Assert( capacity > 0 );
+            _buffer = new byte[capacity];
+            _capacity = capacity;
+            _head = 0;
+            _tail = 0;
+            _size = 0;
+        }
+
+        public int Size { get { return _size; } }
+
+        public int Put(byte[] source, int offset, int count)
+        {
+            Debug.Assert( count > 0 );
+            int trueCount = Math.Min(count, _capacity - Size);
+            for (int i = 0; i < trueCount; ++i)
+                _buffer[(_tail+i) % _capacity] = source[offset+i];
+            _tail += trueCount;
+            _tail %= _capacity;
+            _size += trueCount;
+            return trueCount;
+        }
+
+        public bool Put(byte b)
+        {
+            if (Size == _capacity) // no room
+                return false;
+            _buffer[_tail++] = b;
+            _tail %= _capacity;
+            ++_size;
+            return true;
+        }
+
+        public int Get(byte[] destination, int offset, int count)
+        {
+            int trueCount = Math.Min(count,Size);
+            for (int i = 0; i < trueCount; ++i)
+                destination[offset + i] = _buffer[(_head+i) % _capacity];
+            _head += trueCount;
+            _head %= _capacity;
+            _size -= trueCount;
+            return trueCount;
+        }
+
+        public int Get()
+        {
+            if (Size == 0)
+                return -1;
+
+            int result = (int)_buffer[_head++ % _capacity];
+            --_size;
+            return result;
+        }
+
+    }
+}
diff --git a/compat/zlib/contrib/dotzlib/DotZLib/CodecBase.cs b/compat/zlib/contrib/dotzlib/DotZLib/CodecBase.cs
new file mode 100644
index 0000000..d03e740
--- /dev/null
+++ b/compat/zlib/contrib/dotzlib/DotZLib/CodecBase.cs
@@ -0,0 +1,198 @@
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Runtime.InteropServices;
+
+namespace DotZLib
+{
+	/// <summary>
+	/// Implements the common functionality needed for all <see cref="Codec"/>s
+	/// </summary>
+	public abstract class CodecBase : Codec, IDisposable
+	{
+
+        #region Data members
+
+        /// <summary>
+        /// Instance of the internal zlib buffer structure that is
+        /// passed to all functions in the zlib dll
+        /// </summary>
+        internal ZStream _ztream = new ZStream();
+
+        /// <summary>
+        /// True if the object instance has been disposed, false otherwise
+        /// </summary>
+        protected bool _isDisposed = false;
+
+        /// <summary>
+        /// The size of the internal buffers
+        /// </summary>
+        protected const int kBufferSize = 16384;
+
+        private byte[] _outBuffer = new byte[kBufferSize];
+        private byte[] _inBuffer = new byte[kBufferSize];
+
+        private GCHandle _hInput;
+        private GCHandle _hOutput;
+
+        private uint _checksum = 0;
+
+        #endregion
+
+        /// <summary>
+        /// Initializes a new instance of the <c>CodeBase</c> class.
+        /// </summary>
+		public CodecBase()
+		{
+            try
+            {
+                _hInput = GCHandle.Alloc(_inBuffer, GCHandleType.Pinned);
+                _hOutput = GCHandle.Alloc(_outBuffer, GCHandleType.Pinned);
+            }
+            catch (Exception)
+            {
+                CleanUp(false);
+                throw;
+            }
+        }
+
+
+        #region Codec Members
+
+        /// <summary>
+        /// Occurs when more processed data are available.
+        /// </summary>
+        public event DataAvailableHandler DataAvailable;
+
+        /// <summary>
+        /// Fires the <see cref="DataAvailable"/> event
+        /// </summary>
+        protected void OnDataAvailable()
+        {
+            if (_ztream.total_out > 0)
+            {
+                if (DataAvailable != null)
+                    DataAvailable( _outBuffer, 0, (int)_ztream.total_out);
+                resetOutput();
+            }
+        }
+
+        /// <summary>
+        /// Adds more data to the codec to be processed.
+        /// </summary>
+        /// <param name="data">Byte array containing the data to be added to the codec</param>
+        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+        public void Add(byte[] data)
+        {
+            Add(data,0,data.Length);
+        }
+
+        /// <summary>
+        /// Adds more data to the codec to be processed.
+        /// </summary>
+        /// <param name="data">Byte array containing the data to be added to the codec</param>
+        /// <param name="offset">The index of the first byte to add from <c>data</c></param>
+        /// <param name="count">The number of bytes to add</param>
+        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+        /// <remarks>This must be implemented by a derived class</remarks>
+        public abstract void Add(byte[] data, int offset, int count);
+
+        /// <summary>
+        /// Finishes up any pending data that needs to be processed and handled.
+        /// </summary>
+        /// <remarks>This must be implemented by a derived class</remarks>
+        public abstract void Finish();
+
+        /// <summary>
+        /// Gets the checksum of the data that has been added so far
+        /// </summary>
+        public uint Checksum { get { return _checksum; } }
+
+        #endregion
+
+        #region Destructor & IDisposable stuff
+
+        /// <summary>
+        /// Destroys this instance
+        /// </summary>
+        ~CodecBase()
+        {
+            CleanUp(false);
+        }
+
+        /// <summary>
+        /// Releases any unmanaged resources and calls the <see cref="CleanUp()"/> method of the derived class
+        /// </summary>
+        public void Dispose()
+        {
+            CleanUp(true);
+        }
+
+        /// <summary>
+        /// Performs any codec specific cleanup
+        /// </summary>
+        /// <remarks>This must be implemented by a derived class</remarks>
+        protected abstract void CleanUp();
+
+        // performs the release of the handles and calls the derived CleanUp()
+        private void CleanUp(bool isDisposing)
+        {
+            if (!_isDisposed)
+            {
+                CleanUp();
+                if (_hInput.IsAllocated)
+                    _hInput.Free();
+                if (_hOutput.IsAllocated)
+                    _hOutput.Free();
+
+                _isDisposed = true;
+            }
+        }
+
+
+        #endregion
+
+        #region Helper methods
+
+        /// <summary>
+        /// Copies a number of bytes to the internal codec buffer - ready for processing
+        /// </summary>
+        /// <param name="data">The byte array that contains the data to copy</param>
+        /// <param name="startIndex">The index of the first byte to copy</param>
+        /// <param name="count">The number of bytes to copy from <c>data</c></param>
+        protected void copyInput(byte[] data, int startIndex, int count)
+        {
+            Array.Copy(data, startIndex, _inBuffer,0, count);
+            _ztream.next_in = _hInput.AddrOfPinnedObject();
+            _ztream.total_in = 0;
+            _ztream.avail_in = (uint)count;
+
+        }
+
+        /// <summary>
+        /// Resets the internal output buffers to a known state - ready for processing
+        /// </summary>
+        protected void resetOutput()
+        {
+            _ztream.total_out = 0;
+            _ztream.avail_out = kBufferSize;
+            _ztream.next_out = _hOutput.AddrOfPinnedObject();
+        }
+
+        /// <summary>
+        /// Updates the running checksum property
+        /// </summary>
+        /// <param name="newSum">The new checksum value</param>
+        protected void setChecksum(uint newSum)
+        {
+            _checksum = newSum;
+        }
+        #endregion
+
+    }
+}
diff --git a/compat/zlib/contrib/dotzlib/DotZLib/Deflater.cs b/compat/zlib/contrib/dotzlib/DotZLib/Deflater.cs
new file mode 100644
index 0000000..778a679
--- /dev/null
+++ b/compat/zlib/contrib/dotzlib/DotZLib/Deflater.cs
@@ -0,0 +1,106 @@
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+
+namespace DotZLib
+{
+
+    /// <summary>
+    /// Implements a data compressor, using the deflate algorithm in the ZLib dll
+    /// </summary>
+	public sealed class Deflater : CodecBase
+	{
+        #region Dll imports
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
+        private static extern int deflateInit_(ref ZStream sz, int level, string vs, int size);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int deflate(ref ZStream sz, int flush);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int deflateReset(ref ZStream sz);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int deflateEnd(ref ZStream sz);
+        #endregion
+
+        /// <summary>
+        /// Constructs an new instance of the <c>Deflater</c>
+        /// </summary>
+        /// <param name="level">The compression level to use for this <c>Deflater</c></param>
+		public Deflater(CompressLevel level) : base()
+		{
+            int retval = deflateInit_(ref _ztream, (int)level, Info.Version, Marshal.SizeOf(_ztream));
+            if (retval != 0)
+                throw new ZLibException(retval, "Could not initialize deflater");
+
+            resetOutput();
+		}
+
+        /// <summary>
+        /// Adds more data to the codec to be processed.
+        /// </summary>
+        /// <param name="data">Byte array containing the data to be added to the codec</param>
+        /// <param name="offset">The index of the first byte to add from <c>data</c></param>
+        /// <param name="count">The number of bytes to add</param>
+        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+        public override void Add(byte[] data, int offset, int count)
+        {
+            if (data == null) throw new ArgumentNullException();
+            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+            if ((offset+count) > data.Length) throw new ArgumentException();
+
+            int total = count;
+            int inputIndex = offset;
+            int err = 0;
+
+            while (err >= 0 && inputIndex < total)
+            {
+                copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize));
+                while (err >= 0 && _ztream.avail_in > 0)
+                {
+                    err = deflate(ref _ztream, (int)FlushTypes.None);
+                    if (err == 0)
+                        while (_ztream.avail_out == 0)
+                        {
+                            OnDataAvailable();
+                            err = deflate(ref _ztream, (int)FlushTypes.None);
+                        }
+                    inputIndex += (int)_ztream.total_in;
+                }
+            }
+            setChecksum( _ztream.adler );
+        }
+
+
+        /// <summary>
+        /// Finishes up any pending data that needs to be processed and handled.
+        /// </summary>
+        public override void Finish()
+        {
+            int err;
+            do
+            {
+                err = deflate(ref _ztream, (int)FlushTypes.Finish);
+                OnDataAvailable();
+            }
+            while (err == 0);
+            setChecksum( _ztream.adler );
+            deflateReset(ref _ztream);
+            resetOutput();
+        }
+
+        /// <summary>
+        /// Closes the internal zlib deflate stream
+        /// </summary>
+        protected override void CleanUp() { deflateEnd(ref _ztream); }
+
+    }
+}
diff --git a/compat/zlib/contrib/dotzlib/DotZLib/DotZLib.cs b/compat/zlib/contrib/dotzlib/DotZLib/DotZLib.cs
new file mode 100644
index 0000000..a48ed49
--- /dev/null
+++ b/compat/zlib/contrib/dotzlib/DotZLib/DotZLib.cs
@@ -0,0 +1,288 @@
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+using System.Text;
+
+
+namespace DotZLib
+{
+
+    #region Internal types
+
+    /// <summary>
+    /// Defines constants for the various flush types used with zlib
+    /// </summary>
+    internal enum FlushTypes
+    {
+        None,  Partial,  Sync,  Full,  Finish,  Block
+    }
+
+    #region ZStream structure
+    // internal mapping of the zlib zstream structure for marshalling
+    [StructLayoutAttribute(LayoutKind.Sequential, Pack=4, Size=0, CharSet=CharSet.Ansi)]
+    internal struct ZStream
+    {
+        public IntPtr next_in;
+        public uint avail_in;
+        public uint total_in;
+
+        public IntPtr next_out;
+        public uint avail_out;
+        public uint total_out;
+
+        [MarshalAs(UnmanagedType.LPStr)]
+        string msg;
+        uint state;
+
+        uint zalloc;
+        uint zfree;
+        uint opaque;
+
+        int data_type;
+        public uint adler;
+        uint reserved;
+    }
+
+    #endregion
+
+    #endregion
+
+    #region Public enums
+    /// <summary>
+    /// Defines constants for the available compression levels in zlib
+    /// </summary>
+    public enum CompressLevel : int
+    {
+        /// <summary>
+        /// The default compression level with a reasonable compromise between compression and speed
+        /// </summary>
+        Default = -1,
+        /// <summary>
+        /// No compression at all. The data are passed straight through.
+        /// </summary>
+        None = 0,
+        /// <summary>
+        /// The maximum compression rate available.
+        /// </summary>
+        Best = 9,
+        /// <summary>
+        /// The fastest available compression level.
+        /// </summary>
+        Fastest = 1
+    }
+    #endregion
+
+    #region Exception classes
+    /// <summary>
+    /// The exception that is thrown when an error occurs on the zlib dll
+    /// </summary>
+    public class ZLibException : ApplicationException
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ZLibException"/> class with a specified
+        /// error message and error code
+        /// </summary>
+        /// <param name="errorCode">The zlib error code that caused the exception</param>
+        /// <param name="msg">A message that (hopefully) describes the error</param>
+        public ZLibException(int errorCode, string msg) : base(String.Format("ZLib error {0} {1}", errorCode, msg))
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ZLibException"/> class with a specified
+        /// error code
+        /// </summary>
+        /// <param name="errorCode">The zlib error code that caused the exception</param>
+        public ZLibException(int errorCode) : base(String.Format("ZLib error {0}", errorCode))
+        {
+        }
+    }
+    #endregion
+
+    #region Interfaces
+
+    /// <summary>
+    /// Declares methods and properties that enables a running checksum to be calculated
+    /// </summary>
+    public interface ChecksumGenerator
+    {
+        /// <summary>
+        /// Gets the current value of the checksum
+        /// </summary>
+        uint Value { get; }
+
+        /// <summary>
+        /// Clears the current checksum to 0
+        /// </summary>
+        void Reset();
+
+        /// <summary>
+        /// Updates the current checksum with an array of bytes
+        /// </summary>
+        /// <param name="data">The data to update the checksum with</param>
+        void Update(byte[] data);
+
+        /// <summary>
+        /// Updates the current checksum with part of an array of bytes
+        /// </summary>
+        /// <param name="data">The data to update the checksum with</param>
+        /// <param name="offset">Where in <c>data</c> to start updating</param>
+        /// <param name="count">The number of bytes from <c>data</c> to use</param>
+        /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
+        /// <exception cref="ArgumentNullException"><c>data</c> is a null reference</exception>
+        /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
+        void Update(byte[] data, int offset, int count);
+
+        /// <summary>
+        /// Updates the current checksum with the data from a string
+        /// </summary>
+        /// <param name="data">The string to update the checksum with</param>
+        /// <remarks>The characters in the string are converted by the UTF-8 encoding</remarks>
+        void Update(string data);
+
+        /// <summary>
+        /// Updates the current checksum with the data from a string, using a specific encoding
+        /// </summary>
+        /// <param name="data">The string to update the checksum with</param>
+        /// <param name="encoding">The encoding to use</param>
+        void Update(string data, Encoding encoding);
+    }
+
+
+    /// <summary>
+    /// Represents the method that will be called from a codec when new data
+    /// are available.
+    /// </summary>
+    /// <paramref name="data">The byte array containing the processed data</paramref>
+    /// <paramref name="startIndex">The index of the first processed byte in <c>data</c></paramref>
+    /// <paramref name="count">The number of processed bytes available</paramref>
+    /// <remarks>On return from this method, the data may be overwritten, so grab it while you can.
+    /// You cannot assume that startIndex will be zero.
+    /// </remarks>
+    public delegate void DataAvailableHandler(byte[] data, int startIndex, int count);
+
+    /// <summary>
+    /// Declares methods and events for implementing compressors/decompressors
+    /// </summary>
+    public interface Codec
+    {
+        /// <summary>
+        /// Occurs when more processed data are available.
+        /// </summary>
+        event DataAvailableHandler DataAvailable;
+
+        /// <summary>
+        /// Adds more data to the codec to be processed.
+        /// </summary>
+        /// <param name="data">Byte array containing the data to be added to the codec</param>
+        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+        void Add(byte[] data);
+
+        /// <summary>
+        /// Adds more data to the codec to be processed.
+        /// </summary>
+        /// <param name="data">Byte array containing the data to be added to the codec</param>
+        /// <param name="offset">The index of the first byte to add from <c>data</c></param>
+        /// <param name="count">The number of bytes to add</param>
+        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+        void Add(byte[] data, int offset, int count);
+
+        /// <summary>
+        /// Finishes up any pending data that needs to be processed and handled.
+        /// </summary>
+        void Finish();
+
+        /// <summary>
+        /// Gets the checksum of the data that has been added so far
+        /// </summary>
+        uint Checksum { get; }
+
+
+    }
+
+    #endregion
+
+    #region Classes
+    /// <summary>
+    /// Encapsulates general information about the ZLib library
+    /// </summary>
+    public class Info
+    {
+        #region DLL imports
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern uint zlibCompileFlags();
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern string zlibVersion();
+        #endregion
+
+        #region Private stuff
+        private uint _flags;
+
+        // helper function that unpacks a bitsize mask
+        private static int bitSize(uint bits)
+        {
+            switch (bits)
+            {
+                case 0: return 16;
+                case 1: return 32;
+                case 2: return 64;
+            }
+            return -1;
+        }
+        #endregion
+
+        /// <summary>
+        /// Constructs an instance of the <c>Info</c> class.
+        /// </summary>
+        public Info()
+        {
+            _flags = zlibCompileFlags();
+        }
+
+        /// <summary>
+        /// True if the library is compiled with debug info
+        /// </summary>
+        public bool HasDebugInfo { get { return 0 != (_flags & 0x100); } }
+
+        /// <summary>
+        /// True if the library is compiled with assembly optimizations
+        /// </summary>
+        public bool UsesAssemblyCode { get { return 0 != (_flags & 0x200); } }
+
+        /// <summary>
+        /// Gets the size of the unsigned int that was compiled into Zlib
+        /// </summary>
+        public int SizeOfUInt { get { return bitSize(_flags & 3); } }
+
+        /// <summary>
+        /// Gets the size of the unsigned long that was compiled into Zlib
+        /// </summary>
+        public int SizeOfULong { get { return bitSize((_flags >> 2) & 3); } }
+
+        /// <summary>
+        /// Gets the size of the pointers that were compiled into Zlib
+        /// </summary>
+        public int SizeOfPointer { get { return bitSize((_flags >> 4) & 3); } }
+
+        /// <summary>
+        /// Gets the size of the z_off_t type that was compiled into Zlib
+        /// </summary>
+        public int SizeOfOffset { get { return bitSize((_flags >> 6) & 3); } }
+
+        /// <summary>
+        /// Gets the version of ZLib as a string, e.g. "1.2.1"
+        /// </summary>
+        public static string Version { get { return zlibVersion(); } }
+    }
+
+    #endregion
+
+}
diff --git a/compat/zlib/contrib/dotzlib/DotZLib/DotZLib.csproj b/compat/zlib/contrib/dotzlib/DotZLib/DotZLib.csproj
new file mode 100644
index 0000000..71eeb85
--- /dev/null
+++ b/compat/zlib/contrib/dotzlib/DotZLib/DotZLib.csproj
@@ -0,0 +1,141 @@
+<VisualStudioProject>
+    <CSHARP
+        ProjectType = "Local"
+        ProductVersion = "7.10.3077"
+        SchemaVersion = "2.0"
+        ProjectGuid = "{BB1EE0B1-1808-46CB-B786-949D91117FC5}"
+    >
+        <Build>
+            <Settings
+                ApplicationIcon = ""
+                AssemblyKeyContainerName = ""
+                AssemblyName = "DotZLib"
+                AssemblyOriginatorKeyFile = ""
+                DefaultClientScript = "JScript"
+                DefaultHTMLPageLayout = "Grid"
+                DefaultTargetSchema = "IE50"
+                DelaySign = "false"
+                OutputType = "Library"
+                PreBuildEvent = ""
+                PostBuildEvent = ""
+                RootNamespace = "DotZLib"
+                RunPostBuildEvent = "OnBuildSuccess"
+                StartupObject = ""
+            >
+                <Config
+                    Name = "Debug"
+                    AllowUnsafeBlocks = "false"
+                    BaseAddress = "285212672"
+                    CheckForOverflowUnderflow = "false"
+                    ConfigurationOverrideFile = ""
+                    DefineConstants = "DEBUG;TRACE"
+                    DocumentationFile = "docs\DotZLib.xml"
+                    DebugSymbols = "true"
+                    FileAlignment = "4096"
+                    IncrementalBuild = "false"
+                    NoStdLib = "false"
+                    NoWarn = "1591"
+                    Optimize = "false"
+                    OutputPath = "bin\Debug\"
+                    RegisterForComInterop = "false"
+                    RemoveIntegerChecks = "false"
+                    TreatWarningsAsErrors = "false"
+                    WarningLevel = "4"
+                />
+                <Config
+                    Name = "Release"
+                    AllowUnsafeBlocks = "false"
+                    BaseAddress = "285212672"
+                    CheckForOverflowUnderflow = "false"
+                    ConfigurationOverrideFile = ""
+                    DefineConstants = "TRACE"
+                    DocumentationFile = "docs\DotZLib.xml"
+                    DebugSymbols = "false"
+                    FileAlignment = "4096"
+                    IncrementalBuild = "false"
+                    NoStdLib = "false"
+                    NoWarn = ""
+                    Optimize = "true"
+                    OutputPath = "bin\Release\"
+                    RegisterForComInterop = "false"
+                    RemoveIntegerChecks = "false"
+                    TreatWarningsAsErrors = "false"
+                    WarningLevel = "4"
+                />
+            </Settings>
+            <References>
+                <Reference
+                    Name = "System"
+                    AssemblyName = "System"
+                    HintPath = "C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.dll"
+                />
+                <Reference
+                    Name = "System.Data"
+                    AssemblyName = "System.Data"
+                    HintPath = "C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.Data.dll"
+                />
+                <Reference
+                    Name = "System.XML"
+                    AssemblyName = "System.Xml"
+                    HintPath = "C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.XML.dll"
+                />
+                <Reference
+                    Name = "nunit.framework"
+                    AssemblyName = "nunit.framework"
+                    HintPath = "E:\apps\NUnit V2.1\\bin\nunit.framework.dll"
+                    AssemblyFolderKey = "hklm\dn\nunit.framework"
+                />
+            </References>
+        </Build>
+        <Files>
+            <Include>
+                <File
+                    RelPath = "AssemblyInfo.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "ChecksumImpl.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "CircularBuffer.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "CodecBase.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "Deflater.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "DotZLib.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "GZipStream.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "Inflater.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "UnitTests.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+            </Include>
+        </Files>
+    </CSHARP>
+</VisualStudioProject>
+
diff --git a/compat/zlib/contrib/dotzlib/DotZLib/GZipStream.cs b/compat/zlib/contrib/dotzlib/DotZLib/GZipStream.cs
new file mode 100644
index 0000000..864fa43
--- /dev/null
+++ b/compat/zlib/contrib/dotzlib/DotZLib/GZipStream.cs
@@ -0,0 +1,301 @@
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+
+namespace DotZLib
+{
+	/// <summary>
+	/// Implements a compressed <see cref="Stream"/>, in GZip (.gz) format.
+	/// </summary>
+	public class GZipStream : Stream, IDisposable
+	{
+        #region Dll Imports
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
+        private static extern IntPtr gzopen(string name, string mode);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int gzclose(IntPtr gzFile);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int gzwrite(IntPtr gzFile, int data, int length);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int gzread(IntPtr gzFile, int data, int length);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int gzgetc(IntPtr gzFile);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int gzputc(IntPtr gzFile, int c);
+
+        #endregion
+
+        #region Private data
+        private IntPtr _gzFile;
+        private bool _isDisposed = false;
+        private bool _isWriting;
+        #endregion
+
+        #region Constructors
+        /// <summary>
+        /// Creates a new file as a writeable GZipStream
+        /// </summary>
+        /// <param name="fileName">The name of the compressed file to create</param>
+        /// <param name="level">The compression level to use when adding data</param>
+        /// <exception cref="ZLibException">If an error occurred in the internal zlib function</exception>
+		public GZipStream(string fileName, CompressLevel level)
+		{
+            _isWriting = true;
+            _gzFile = gzopen(fileName, String.Format("wb{0}", (int)level));
+            if (_gzFile == IntPtr.Zero)
+                throw new ZLibException(-1, "Could not open " + fileName);
+		}
+
+        /// <summary>
+        /// Opens an existing file as a readable GZipStream
+        /// </summary>
+        /// <param name="fileName">The name of the file to open</param>
+        /// <exception cref="ZLibException">If an error occurred in the internal zlib function</exception>
+        public GZipStream(string fileName)
+        {
+            _isWriting = false;
+            _gzFile = gzopen(fileName, "rb");
+            if (_gzFile == IntPtr.Zero)
+                throw new ZLibException(-1, "Could not open " + fileName);
+
+        }
+        #endregion
+
+        #region Access properties
+        /// <summary>
+        /// Returns true of this stream can be read from, false otherwise
+        /// </summary>
+        public override bool CanRead
+        {
+            get
+            {
+                return !_isWriting;
+            }
+        }
+
+
+        /// <summary>
+        /// Returns false.
+        /// </summary>
+        public override bool CanSeek
+        {
+            get
+            {
+                return false;
+            }
+        }
+
+        /// <summary>
+        /// Returns true if this tsream is writeable, false otherwise
+        /// </summary>
+        public override bool CanWrite
+        {
+            get
+            {
+                return _isWriting;
+            }
+        }
+        #endregion
+
+        #region Destructor & IDispose stuff
+
+        /// <summary>
+        /// Destroys this instance
+        /// </summary>
+        ~GZipStream()
+        {
+            cleanUp(false);
+        }
+
+        /// <summary>
+        /// Closes the external file handle
+        /// </summary>
+        public void Dispose()
+        {
+            cleanUp(true);
+        }
+
+        // Does the actual closing of the file handle.
+        private void cleanUp(bool isDisposing)
+        {
+            if (!_isDisposed)
+            {
+                gzclose(_gzFile);
+                _isDisposed = true;
+            }
+        }
+        #endregion
+
+        #region Basic reading and writing
+        /// <summary>
+        /// Attempts to read a number of bytes from the stream.
+        /// </summary>
+        /// <param name="buffer">The destination data buffer</param>
+        /// <param name="offset">The index of the first destination byte in <c>buffer</c></param>
+        /// <param name="count">The number of bytes requested</param>
+        /// <returns>The number of bytes read</returns>
+        /// <exception cref="ArgumentNullException">If <c>buffer</c> is null</exception>
+        /// <exception cref="ArgumentOutOfRangeException">If <c>count</c> or <c>offset</c> are negative</exception>
+        /// <exception cref="ArgumentException">If <c>offset</c>  + <c>count</c> is &gt; buffer.Length</exception>
+        /// <exception cref="NotSupportedException">If this stream is not readable.</exception>
+        /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
+        public override int Read(byte[] buffer, int offset, int count)
+        {
+            if (!CanRead) throw new NotSupportedException();
+            if (buffer == null) throw new ArgumentNullException();
+            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+            if ((offset+count) > buffer.Length) throw new ArgumentException();
+            if (_isDisposed) throw new ObjectDisposedException("GZipStream");
+
+            GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);
+            int result;
+            try
+            {
+                result = gzread(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count);
+                if (result < 0)
+                    throw new IOException();
+            }
+            finally
+            {
+                h.Free();
+            }
+            return result;
+        }
+
+        /// <summary>
+        /// Attempts to read a single byte from the stream.
+        /// </summary>
+        /// <returns>The byte that was read, or -1 in case of error or End-Of-File</returns>
+        public override int ReadByte()
+        {
+            if (!CanRead) throw new NotSupportedException();
+            if (_isDisposed) throw new ObjectDisposedException("GZipStream");
+            return gzgetc(_gzFile);
+        }
+
+        /// <summary>
+        /// Writes a number of bytes to the stream
+        /// </summary>
+        /// <param name="buffer"></param>
+        /// <param name="offset"></param>
+        /// <param name="count"></param>
+        /// <exception cref="ArgumentNullException">If <c>buffer</c> is null</exception>
+        /// <exception cref="ArgumentOutOfRangeException">If <c>count</c> or <c>offset</c> are negative</exception>
+        /// <exception cref="ArgumentException">If <c>offset</c>  + <c>count</c> is &gt; buffer.Length</exception>
+        /// <exception cref="NotSupportedException">If this stream is not writeable.</exception>
+        /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
+        public override void Write(byte[] buffer, int offset, int count)
+        {
+            if (!CanWrite) throw new NotSupportedException();
+            if (buffer == null) throw new ArgumentNullException();
+            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+            if ((offset+count) > buffer.Length) throw new ArgumentException();
+            if (_isDisposed) throw new ObjectDisposedException("GZipStream");
+
+            GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);
+            try
+            {
+                int result = gzwrite(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count);
+                if (result < 0)
+                    throw new IOException();
+            }
+            finally
+            {
+                h.Free();
+            }
+        }
+
+        /// <summary>
+        /// Writes a single byte to the stream
+        /// </summary>
+        /// <param name="value">The byte to add to the stream.</param>
+        /// <exception cref="NotSupportedException">If this stream is not writeable.</exception>
+        /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
+        public override void WriteByte(byte value)
+        {
+            if (!CanWrite) throw new NotSupportedException();
+            if (_isDisposed) throw new ObjectDisposedException("GZipStream");
+
+            int result = gzputc(_gzFile, (int)value);
+            if (result < 0)
+                throw new IOException();
+        }
+        #endregion
+
+        #region Position & length stuff
+        /// <summary>
+        /// Not supported.
+        /// </summary>
+        /// <param name="value"></param>
+        /// <exception cref="NotSupportedException">Always thrown</exception>
+        public override void SetLength(long value)
+        {
+            throw new NotSupportedException();
+        }
+
+        /// <summary>
+        ///  Not supported.
+        /// </summary>
+        /// <param name="offset"></param>
+        /// <param name="origin"></param>
+        /// <returns></returns>
+        /// <exception cref="NotSupportedException">Always thrown</exception>
+        public override long Seek(long offset, SeekOrigin origin)
+        {
+            throw new NotSupportedException();
+        }
+
+        /// <summary>
+        /// Flushes the <c>GZipStream</c>.
+        /// </summary>
+        /// <remarks>In this implementation, this method does nothing. This is because excessive
+        /// flushing may degrade the achievable compression rates.</remarks>
+        public override void Flush()
+        {
+            // left empty on purpose
+        }
+
+        /// <summary>
+        /// Gets/sets the current position in the <c>GZipStream</c>. Not supported.
+        /// </summary>
+        /// <remarks>In this implementation this property is not supported</remarks>
+        /// <exception cref="NotSupportedException">Always thrown</exception>
+        public override long Position
+        {
+            get
+            {
+                throw new NotSupportedException();
+            }
+            set
+            {
+                throw new NotSupportedException();
+            }
+        }
+
+        /// <summary>
+        /// Gets the size of the stream. Not supported.
+        /// </summary>
+        /// <remarks>In this implementation this property is not supported</remarks>
+        /// <exception cref="NotSupportedException">Always thrown</exception>
+        public override long Length
+        {
+            get
+            {
+                throw new NotSupportedException();
+            }
+        }
+        #endregion
+    }
+}
diff --git a/compat/zlib/contrib/dotzlib/DotZLib/Inflater.cs b/compat/zlib/contrib/dotzlib/DotZLib/Inflater.cs
new file mode 100644
index 0000000..8e900ae
--- /dev/null
+++ b/compat/zlib/contrib/dotzlib/DotZLib/Inflater.cs
@@ -0,0 +1,105 @@
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+
+namespace DotZLib
+{
+
+    /// <summary>
+    /// Implements a data decompressor, using the inflate algorithm in the ZLib dll
+    /// </summary>
+    public class Inflater : CodecBase
+	{
+        #region Dll imports
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
+        private static extern int inflateInit_(ref ZStream sz, string vs, int size);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int inflate(ref ZStream sz, int flush);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int inflateReset(ref ZStream sz);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int inflateEnd(ref ZStream sz);
+        #endregion
+
+        /// <summary>
+        /// Constructs an new instance of the <c>Inflater</c>
+        /// </summary>
+        public Inflater() : base()
+		{
+            int retval = inflateInit_(ref _ztream, Info.Version, Marshal.SizeOf(_ztream));
+            if (retval != 0)
+                throw new ZLibException(retval, "Could not initialize inflater");
+
+            resetOutput();
+        }
+
+
+        /// <summary>
+        /// Adds more data to the codec to be processed.
+        /// </summary>
+        /// <param name="data">Byte array containing the data to be added to the codec</param>
+        /// <param name="offset">The index of the first byte to add from <c>data</c></param>
+        /// <param name="count">The number of bytes to add</param>
+        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+        public override void Add(byte[] data, int offset, int count)
+        {
+            if (data == null) throw new ArgumentNullException();
+            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+            if ((offset+count) > data.Length) throw new ArgumentException();
+
+            int total = count;
+            int inputIndex = offset;
+            int err = 0;
+
+            while (err >= 0 && inputIndex < total)
+            {
+                copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize));
+                err = inflate(ref _ztream, (int)FlushTypes.None);
+                if (err == 0)
+                    while (_ztream.avail_out == 0)
+                    {
+                        OnDataAvailable();
+                        err = inflate(ref _ztream, (int)FlushTypes.None);
+                    }
+
+                inputIndex += (int)_ztream.total_in;
+            }
+            setChecksum( _ztream.adler );
+        }
+
+
+        /// <summary>
+        /// Finishes up any pending data that needs to be processed and handled.
+        /// </summary>
+        public override void Finish()
+        {
+            int err;
+            do
+            {
+                err = inflate(ref _ztream, (int)FlushTypes.Finish);
+                OnDataAvailable();
+            }
+            while (err == 0);
+            setChecksum( _ztream.adler );
+            inflateReset(ref _ztream);
+            resetOutput();
+        }
+
+        /// <summary>
+        /// Closes the internal zlib inflate stream
+        /// </summary>
+        protected override void CleanUp() { inflateEnd(ref _ztream); }
+
+
+	}
+}
diff --git a/compat/zlib/contrib/dotzlib/DotZLib/UnitTests.cs b/compat/zlib/contrib/dotzlib/DotZLib/UnitTests.cs
new file mode 100644
index 0000000..d4f0980
--- /dev/null
+++ b/compat/zlib/contrib/dotzlib/DotZLib/UnitTests.cs
@@ -0,0 +1,274 @@
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Collections;
+using System.IO;
+
+// uncomment the define below to include unit tests
+//#define nunit
+#if nunit
+using NUnit.Framework;
+
+// Unit tests for the DotZLib class library
+// ----------------------------------------
+//
+// Use this with NUnit 2 from http://www.nunit.org
+//
+
+namespace DotZLibTests
+{
+    using DotZLib;
+
+    // helper methods
+    internal class Utils
+    {
+        public static bool byteArrEqual( byte[] lhs, byte[] rhs )
+        {
+            if (lhs.Length != rhs.Length)
+                return false;
+            for (int i = lhs.Length-1; i >= 0; --i)
+                if (lhs[i] != rhs[i])
+                    return false;
+            return true;
+        }
+
+    }
+
+
+    [TestFixture]
+    public class CircBufferTests
+    {
+        #region Circular buffer tests
+        [Test]
+        public void SinglePutGet()
+        {
+            CircularBuffer buf = new CircularBuffer(10);
+            Assert.AreEqual( 0, buf.Size );
+            Assert.AreEqual( -1, buf.Get() );
+
+            Assert.IsTrue(buf.Put( 1 ));
+            Assert.AreEqual( 1, buf.Size );
+            Assert.AreEqual( 1, buf.Get() );
+            Assert.AreEqual( 0, buf.Size );
+            Assert.AreEqual( -1, buf.Get() );
+        }
+
+        [Test]
+        public void BlockPutGet()
+        {
+            CircularBuffer buf = new CircularBuffer(10);
+            byte[] arr = {1,2,3,4,5,6,7,8,9,10};
+            Assert.AreEqual( 10, buf.Put(arr,0,10) );
+            Assert.AreEqual( 10, buf.Size );
+            Assert.IsFalse( buf.Put(11) );
+            Assert.AreEqual( 1, buf.Get() );
+            Assert.IsTrue( buf.Put(11) );
+
+            byte[] arr2 = (byte[])arr.Clone();
+            Assert.AreEqual( 9, buf.Get(arr2,1,9) );
+            Assert.IsTrue( Utils.byteArrEqual(arr,arr2) );
+        }
+
+        #endregion
+    }
+
+    [TestFixture]
+    public class ChecksumTests
+    {
+        #region CRC32 Tests
+        [Test]
+        public void CRC32_Null()
+        {
+            CRC32Checksum crc32 = new CRC32Checksum();
+            Assert.AreEqual( 0, crc32.Value );
+
+            crc32 = new CRC32Checksum(1);
+            Assert.AreEqual( 1, crc32.Value );
+
+            crc32 = new CRC32Checksum(556);
+            Assert.AreEqual( 556, crc32.Value );
+        }
+
+        [Test]
+        public void CRC32_Data()
+        {
+            CRC32Checksum crc32 = new CRC32Checksum();
+            byte[] data = { 1,2,3,4,5,6,7 };
+            crc32.Update(data);
+            Assert.AreEqual( 0x70e46888, crc32.Value  );
+
+            crc32 = new CRC32Checksum();
+            crc32.Update("penguin");
+            Assert.AreEqual( 0x0e5c1a120, crc32.Value );
+
+            crc32 = new CRC32Checksum(1);
+            crc32.Update("penguin");
+            Assert.AreEqual(0x43b6aa94, crc32.Value);
+
+        }
+        #endregion
+
+        #region Adler tests
+
+        [Test]
+        public void Adler_Null()
+        {
+            AdlerChecksum adler = new AdlerChecksum();
+            Assert.AreEqual(0, adler.Value);
+
+            adler = new AdlerChecksum(1);
+            Assert.AreEqual( 1, adler.Value );
+
+            adler = new AdlerChecksum(556);
+            Assert.AreEqual( 556, adler.Value );
+        }
+
+        [Test]
+        public void Adler_Data()
+        {
+            AdlerChecksum adler = new AdlerChecksum(1);
+            byte[] data = { 1,2,3,4,5,6,7 };
+            adler.Update(data);
+            Assert.AreEqual( 0x5b001d, adler.Value  );
+
+            adler = new AdlerChecksum();
+            adler.Update("penguin");
+            Assert.AreEqual(0x0bcf02f6, adler.Value );
+
+            adler = new AdlerChecksum(1);
+            adler.Update("penguin");
+            Assert.AreEqual(0x0bd602f7, adler.Value);
+
+        }
+        #endregion
+    }
+
+    [TestFixture]
+    public class InfoTests
+    {
+        #region Info tests
+        [Test]
+        public void Info_Version()
+        {
+            Info info = new Info();
+            Assert.AreEqual("1.3.1", Info.Version);
+            Assert.AreEqual(32, info.SizeOfUInt);
+            Assert.AreEqual(32, info.SizeOfULong);
+            Assert.AreEqual(32, info.SizeOfPointer);
+            Assert.AreEqual(32, info.SizeOfOffset);
+        }
+        #endregion
+    }
+
+    [TestFixture]
+    public class DeflateInflateTests
+    {
+        #region Deflate tests
+        [Test]
+        public void Deflate_Init()
+        {
+            using (Deflater def = new Deflater(CompressLevel.Default))
+            {
+            }
+        }
+
+        private ArrayList compressedData = new ArrayList();
+        private uint adler1;
+
+        private ArrayList uncompressedData = new ArrayList();
+        private uint adler2;
+
+        public void CDataAvail(byte[] data, int startIndex, int count)
+        {
+            for (int i = 0; i < count; ++i)
+                compressedData.Add(data[i+startIndex]);
+        }
+
+        [Test]
+        public void Deflate_Compress()
+        {
+            compressedData.Clear();
+
+            byte[] testData = new byte[35000];
+            for (int i = 0; i < testData.Length; ++i)
+                testData[i] = 5;
+
+            using (Deflater def = new Deflater((CompressLevel)5))
+            {
+                def.DataAvailable += new DataAvailableHandler(CDataAvail);
+                def.Add(testData);
+                def.Finish();
+                adler1 = def.Checksum;
+            }
+        }
+        #endregion
+
+        #region Inflate tests
+        [Test]
+        public void Inflate_Init()
+        {
+            using (Inflater inf = new Inflater())
+            {
+            }
+        }
+
+        private void DDataAvail(byte[] data, int startIndex, int count)
+        {
+            for (int i = 0; i < count; ++i)
+                uncompressedData.Add(data[i+startIndex]);
+        }
+
+        [Test]
+        public void Inflate_Expand()
+        {
+            uncompressedData.Clear();
+
+            using (Inflater inf = new Inflater())
+            {
+                inf.DataAvailable += new DataAvailableHandler(DDataAvail);
+                inf.Add((byte[])compressedData.ToArray(typeof(byte)));
+                inf.Finish();
+                adler2 = inf.Checksum;
+            }
+            Assert.AreEqual( adler1, adler2 );
+        }
+        #endregion
+    }
+
+    [TestFixture]
+    public class GZipStreamTests
+    {
+        #region GZipStream test
+        [Test]
+        public void GZipStream_WriteRead()
+        {
+            using (GZipStream gzOut = new GZipStream("gzstream.gz", CompressLevel.Best))
+            {
+                BinaryWriter writer = new BinaryWriter(gzOut);
+                writer.Write("hi there");
+                writer.Write(Math.PI);
+                writer.Write(42);
+            }
+
+            using (GZipStream gzIn = new GZipStream("gzstream.gz"))
+            {
+                BinaryReader reader = new BinaryReader(gzIn);
+                string s = reader.ReadString();
+                Assert.AreEqual("hi there",s);
+                double d = reader.ReadDouble();
+                Assert.AreEqual(Math.PI, d);
+                int i = reader.ReadInt32();
+                Assert.AreEqual(42,i);
+            }
+
+        }
+        #endregion
+	}
+}
+
+#endif
diff --git a/compat/zlib/contrib/dotzlib/LICENSE_1_0.txt b/compat/zlib/contrib/dotzlib/LICENSE_1_0.txt
new file mode 100644
index 0000000..30aac2c
--- /dev/null
+++ b/compat/zlib/contrib/dotzlib/LICENSE_1_0.txt
@@ -0,0 +1,23 @@
+Boost Software License - Version 1.0 - August 17th, 2003
+
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+\ No newline at end of file
diff --git a/compat/zlib/contrib/dotzlib/readme.txt b/compat/zlib/contrib/dotzlib/readme.txt
new file mode 100644
index 0000000..47454fc
--- /dev/null
+++ b/compat/zlib/contrib/dotzlib/readme.txt
@@ -0,0 +1,58 @@
+This directory contains a .Net wrapper class library for the ZLib1.dll
+
+The wrapper includes support for inflating/deflating memory buffers,
+.Net streaming wrappers for the gz streams part of zlib, and wrappers
+for the checksum parts of zlib. See DotZLib/UnitTests.cs for examples.
+
+Directory structure:
+--------------------
+
+LICENSE_1_0.txt       - License file.
+readme.txt            - This file.
+DotZLib.chm           - Class library documentation
+DotZLib.build         - NAnt build file
+DotZLib.sln           - Microsoft Visual Studio 2003 solution file
+
+DotZLib\*.cs          - Source files for the class library
+
+Unit tests:
+-----------
+The file DotZLib/UnitTests.cs contains unit tests for use with NUnit 2.1 or higher.
+To include unit tests in the build, define nunit before building.
+
+
+Build instructions:
+-------------------
+
+1. Using Visual Studio.Net 2003:
+   Open DotZLib.sln in VS.Net and build from there. Output file (DotZLib.dll)
+   will be found ./DotZLib/bin/release or ./DotZLib/bin/debug, depending on
+   you are building the release or debug version of the library. Check
+   DotZLib/UnitTests.cs for instructions on how to include unit tests in the
+   build.
+
+2. Using NAnt:
+   Open a command prompt with access to the build environment and run nant
+   in the same directory as the DotZLib.build file.
+   You can define 2 properties on the nant command-line to control the build:
+   debug={true|false} to toggle between release/debug builds (default=true).
+   nunit={true|false} to include or exclude unit tests (default=true).
+   Also the target clean will remove binaries.
+   Output file (DotZLib.dll) will be found in either ./DotZLib/bin/release
+   or ./DotZLib/bin/debug, depending on whether you are building the release
+   or debug version of the library.
+
+   Examples:
+     nant -D:debug=false -D:nunit=false
+       will build a release mode version of the library without unit tests.
+     nant
+       will build a debug version of the library with unit tests
+     nant clean
+       will remove all previously built files.
+
+
+---------------------------------
+Copyright (c) Henrik Ravn 2004
+
+Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+(See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/compat/zlib/contrib/gcc_gvmat64/gvmat64.S b/compat/zlib/contrib/gcc_gvmat64/gvmat64.S
new file mode 100644
index 0000000..dd858dd
--- /dev/null
+++ b/compat/zlib/contrib/gcc_gvmat64/gvmat64.S
@@ -0,0 +1,574 @@
+/*
+;uInt longest_match_x64(
+;    deflate_state *s,
+;    IPos cur_match);                             // current match 
+
+; gvmat64.S -- Asm portion of the optimized longest_match for 32 bits x86_64
+;  (AMD64 on Athlon 64, Opteron, Phenom
+;     and Intel EM64T on Pentium 4 with EM64T, Pentium D, Core 2 Duo, Core I5/I7)
+; this file is translation from gvmat64.asm to GCC 4.x (for Linux, Mac XCode)
+; Copyright (C) 1995-2010 Jean-loup Gailly, Brian Raiter and Gilles Vollant.
+;
+; File written by Gilles Vollant, by converting to assembly the longest_match
+;  from Jean-loup Gailly in deflate.c of zLib and infoZip zip.
+;  and by taking inspiration on asm686 with masm, optimised assembly code
+;        from Brian Raiter, written 1998
+;
+;  This software is provided 'as-is', without any express or implied
+;  warranty.  In no event will the authors be held liable for any damages
+;  arising from the use of this software.
+;
+;  Permission is granted to anyone to use this software for any purpose,
+;  including commercial applications, and to alter it and redistribute it
+;  freely, subject to the following restrictions:
+;
+;  1. The origin of this software must not be misrepresented; you must not
+;     claim that you wrote the original software. If you use this software
+;     in a product, an acknowledgment in the product documentation would be
+;     appreciated but is not required.
+;  2. Altered source versions must be plainly marked as such, and must not be
+;     misrepresented as being the original software
+;  3. This notice may not be removed or altered from any source distribution.
+;
+;         http://www.zlib.net
+;         http://www.winimage.com/zLibDll
+;         http://www.muppetlabs.com/~breadbox/software/assembly.html
+;
+; to compile this file for zLib, I use option:
+;   gcc -c -arch x86_64 gvmat64.S
+
+
+;uInt longest_match(s, cur_match)
+;    deflate_state *s;
+;    IPos cur_match;                             // current match /
+;
+; with XCode for Mac, I had strange error with some jump on intel syntax
+; this is why BEFORE_JMP and AFTER_JMP are used
+ */
+
+
+#define BEFORE_JMP .att_syntax
+#define AFTER_JMP .intel_syntax noprefix
+
+#ifndef NO_UNDERLINE
+#	define	match_init	_match_init
+#	define	longest_match	_longest_match
+#endif
+
+.intel_syntax noprefix
+
+.globl	match_init, longest_match
+.text
+longest_match:
+
+
+
+#define LocalVarsSize 96
+/*
+; register used : rax,rbx,rcx,rdx,rsi,rdi,r8,r9,r10,r11,r12
+; free register :  r14,r15
+; register can be saved : rsp
+*/
+
+#define chainlenwmask     (rsp + 8 - LocalVarsSize)
+#define nicematch         (rsp + 16 - LocalVarsSize)
+
+#define save_rdi        (rsp + 24 - LocalVarsSize)
+#define save_rsi        (rsp + 32 - LocalVarsSize)
+#define save_rbx        (rsp + 40 - LocalVarsSize)
+#define save_rbp        (rsp + 48 - LocalVarsSize)
+#define save_r12        (rsp + 56 - LocalVarsSize)
+#define save_r13        (rsp + 64 - LocalVarsSize)
+#define save_r14        (rsp + 72 - LocalVarsSize)
+#define save_r15        (rsp + 80 - LocalVarsSize)
+
+
+/*
+;  all the +4 offsets are due to the addition of pending_buf_size (in zlib
+;  in the deflate_state structure since the asm code was first written
+;  (if you compile with zlib 1.0.4 or older, remove the +4).
+;  Note : these value are good with a 8 bytes boundary pack structure
+*/
+
+#define    MAX_MATCH              258
+#define    MIN_MATCH              3
+#define    MIN_LOOKAHEAD          (MAX_MATCH+MIN_MATCH+1)
+
+/*
+;;; Offsets for fields in the deflate_state structure. These numbers
+;;; are calculated from the definition of deflate_state, with the
+;;; assumption that the compiler will dword-align the fields. (Thus,
+;;; changing the definition of deflate_state could easily cause this
+;;; program to crash horribly, without so much as a warning at
+;;; compile time. Sigh.)
+
+;  all the +zlib1222add offsets are due to the addition of fields
+;  in zlib in the deflate_state structure since the asm code was first written
+;  (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)").
+;  (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0").
+;  if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8").
+*/
+
+
+
+/* you can check the structure offset by running
+
+#include <stdlib.h>
+#include <stdio.h>
+#include "deflate.h"
+
+void print_depl()
+{
+deflate_state ds;
+deflate_state *s=&ds;
+printf("size pointer=%u\n",(int)sizeof(void*));
+
+printf("#define dsWSize         %u\n",(int)(((char*)&(s->w_size))-((char*)s)));
+printf("#define dsWMask         %u\n",(int)(((char*)&(s->w_mask))-((char*)s)));
+printf("#define dsWindow        %u\n",(int)(((char*)&(s->window))-((char*)s)));
+printf("#define dsPrev          %u\n",(int)(((char*)&(s->prev))-((char*)s)));
+printf("#define dsMatchLen      %u\n",(int)(((char*)&(s->match_length))-((char*)s)));
+printf("#define dsPrevMatch     %u\n",(int)(((char*)&(s->prev_match))-((char*)s)));
+printf("#define dsStrStart      %u\n",(int)(((char*)&(s->strstart))-((char*)s)));
+printf("#define dsMatchStart    %u\n",(int)(((char*)&(s->match_start))-((char*)s)));
+printf("#define dsLookahead     %u\n",(int)(((char*)&(s->lookahead))-((char*)s)));
+printf("#define dsPrevLen       %u\n",(int)(((char*)&(s->prev_length))-((char*)s)));
+printf("#define dsMaxChainLen   %u\n",(int)(((char*)&(s->max_chain_length))-((char*)s)));
+printf("#define dsGoodMatch     %u\n",(int)(((char*)&(s->good_match))-((char*)s)));
+printf("#define dsNiceMatch     %u\n",(int)(((char*)&(s->nice_match))-((char*)s)));
+}
+*/
+
+#define dsWSize          68
+#define dsWMask          76
+#define dsWindow         80
+#define dsPrev           96
+#define dsMatchLen       144
+#define dsPrevMatch      148
+#define dsStrStart       156
+#define dsMatchStart     160
+#define dsLookahead      164
+#define dsPrevLen        168
+#define dsMaxChainLen    172
+#define dsGoodMatch      188
+#define dsNiceMatch      192
+
+#define window_size      [ rcx + dsWSize]
+#define WMask            [ rcx + dsWMask]
+#define window_ad        [ rcx + dsWindow]
+#define prev_ad          [ rcx + dsPrev]
+#define strstart         [ rcx + dsStrStart]
+#define match_start      [ rcx + dsMatchStart]
+#define Lookahead        [ rcx + dsLookahead] //; 0ffffffffh on infozip
+#define prev_length      [ rcx + dsPrevLen]
+#define max_chain_length [ rcx + dsMaxChainLen]
+#define good_match       [ rcx + dsGoodMatch]
+#define nice_match       [ rcx + dsNiceMatch]
+
+/*
+; windows:
+; parameter 1 in rcx(deflate state s), param 2 in rdx (cur match)
+
+; see http://weblogs.asp.net/oldnewthing/archive/2004/01/14/58579.aspx and
+; http://msdn.microsoft.com/library/en-us/kmarch/hh/kmarch/64bitAMD_8e951dd2-ee77-4728-8702-55ce4b5dd24a.xml.asp
+;
+; All registers must be preserved across the call, except for
+;   rax, rcx, rdx, r8, r9, r10, and r11, which are scratch.
+
+;
+; gcc on macosx-linux:
+; see http://www.x86-64.org/documentation/abi-0.99.pdf
+; param 1 in rdi, param 2 in rsi
+; rbx, rsp, rbp, r12 to r15 must be preserved
+
+;;; Save registers that the compiler may be using, and adjust esp to
+;;; make room for our stack frame.
+
+
+;;; Retrieve the function arguments. r8d will hold cur_match
+;;; throughout the entire function. edx will hold the pointer to the
+;;; deflate_state structure during the function's setup (before
+;;; entering the main loop.
+
+; ms: parameter 1 in rcx (deflate_state* s), param 2 in edx -> r8 (cur match)
+; mac: param 1 in rdi, param 2 rsi
+; this clear high 32 bits of r8, which can be garbage in both r8 and rdx
+*/
+        mov [save_rbx],rbx
+        mov [save_rbp],rbp
+
+
+        mov rcx,rdi
+
+        mov r8d,esi
+
+
+        mov [save_r12],r12
+        mov [save_r13],r13
+        mov [save_r14],r14
+        mov [save_r15],r15
+
+
+//;;; uInt wmask = s->w_mask;
+//;;; unsigned chain_length = s->max_chain_length;
+//;;; if (s->prev_length >= s->good_match) {
+//;;;     chain_length >>= 2;
+//;;; }
+
+
+        mov edi, prev_length
+        mov esi, good_match
+        mov eax, WMask
+        mov ebx, max_chain_length
+        cmp edi, esi
+        jl  LastMatchGood
+        shr ebx, 2
+LastMatchGood:
+
+//;;; chainlen is decremented once beforehand so that the function can
+//;;; use the sign flag instead of the zero flag for the exit test.
+//;;; It is then shifted into the high word, to make room for the wmask
+//;;; value, which it will always accompany.
+
+        dec ebx
+        shl ebx, 16
+        or  ebx, eax
+
+//;;; on zlib only
+//;;; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
+
+
+
+        mov eax, nice_match
+        mov [chainlenwmask], ebx
+        mov r10d, Lookahead
+        cmp r10d, eax
+        cmovnl r10d, eax
+        mov [nicematch],r10d
+
+
+
+//;;; register Bytef *scan = s->window + s->strstart;
+        mov r10, window_ad
+        mov ebp, strstart
+        lea r13, [r10 + rbp]
+
+//;;; Determine how many bytes the scan ptr is off from being
+//;;; dword-aligned.
+
+         mov r9,r13
+         neg r13
+         and r13,3
+
+//;;; IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
+//;;;     s->strstart - (IPos)MAX_DIST(s) : NIL;
+
+
+        mov eax, window_size
+        sub eax, MIN_LOOKAHEAD
+
+
+        xor edi,edi
+        sub ebp, eax
+
+        mov r11d, prev_length
+
+        cmovng ebp,edi
+
+//;;; int best_len = s->prev_length;
+
+
+//;;; Store the sum of s->window + best_len in esi locally, and in esi.
+
+       lea  rsi,[r10+r11]
+
+//;;; register ush scan_start = *(ushf*)scan;
+//;;; register ush scan_end   = *(ushf*)(scan+best_len-1);
+//;;; Posf *prev = s->prev;
+
+        movzx r12d,word ptr [r9]
+        movzx ebx, word ptr [r9 + r11 - 1]
+
+        mov rdi, prev_ad
+
+//;;; Jump into the main loop.
+
+        mov edx, [chainlenwmask]
+
+        cmp bx,word ptr [rsi + r8 - 1]
+        jz  LookupLoopIsZero
+				
+						
+						
+LookupLoop1:
+        and r8d, edx
+
+        movzx   r8d, word ptr [rdi + r8*2]
+        cmp r8d, ebp
+        jbe LeaveNow
+		
+		
+		
+        sub edx, 0x00010000
+		BEFORE_JMP
+        js  LeaveNow
+		AFTER_JMP
+
+LoopEntry1:
+        cmp bx,word ptr [rsi + r8 - 1]
+		BEFORE_JMP
+        jz  LookupLoopIsZero
+		AFTER_JMP
+
+LookupLoop2:
+        and r8d, edx
+
+        movzx   r8d, word ptr [rdi + r8*2]
+        cmp r8d, ebp
+		BEFORE_JMP
+        jbe LeaveNow
+		AFTER_JMP
+        sub edx, 0x00010000
+		BEFORE_JMP
+        js  LeaveNow
+		AFTER_JMP
+
+LoopEntry2:
+        cmp bx,word ptr [rsi + r8 - 1]
+		BEFORE_JMP
+        jz  LookupLoopIsZero
+		AFTER_JMP
+
+LookupLoop4:
+        and r8d, edx
+
+        movzx   r8d, word ptr [rdi + r8*2]
+        cmp r8d, ebp
+		BEFORE_JMP
+        jbe LeaveNow
+		AFTER_JMP
+        sub edx, 0x00010000
+		BEFORE_JMP
+        js  LeaveNow
+		AFTER_JMP
+
+LoopEntry4:
+
+        cmp bx,word ptr [rsi + r8 - 1]
+		BEFORE_JMP
+        jnz LookupLoop1
+        jmp LookupLoopIsZero
+		AFTER_JMP
+/*
+;;; do {
+;;;     match = s->window + cur_match;
+;;;     if (*(ushf*)(match+best_len-1) != scan_end ||
+;;;         *(ushf*)match != scan_start) continue;
+;;;     [...]
+;;; } while ((cur_match = prev[cur_match & wmask]) > limit
+;;;          && --chain_length != 0);
+;;;
+;;; Here is the inner loop of the function. The function will spend the
+;;; majority of its time in this loop, and majority of that time will
+;;; be spent in the first ten instructions.
+;;;
+;;; Within this loop:
+;;; ebx = scanend
+;;; r8d = curmatch
+;;; edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)
+;;; esi = windowbestlen - i.e., (window + bestlen)
+;;; edi = prev
+;;; ebp = limit
+*/
+.balign 16
+LookupLoop:
+        and r8d, edx
+
+        movzx   r8d, word ptr [rdi + r8*2]
+        cmp r8d, ebp
+		BEFORE_JMP
+        jbe LeaveNow
+		AFTER_JMP
+        sub edx, 0x00010000
+		BEFORE_JMP
+        js  LeaveNow
+		AFTER_JMP
+
+LoopEntry:
+
+        cmp bx,word ptr [rsi + r8 - 1]
+		BEFORE_JMP
+        jnz LookupLoop1
+		AFTER_JMP
+LookupLoopIsZero:
+        cmp     r12w, word ptr [r10 + r8]
+		BEFORE_JMP
+        jnz LookupLoop1
+		AFTER_JMP
+
+
+//;;; Store the current value of chainlen.
+        mov [chainlenwmask], edx
+/*
+;;; Point edi to the string under scrutiny, and esi to the string we
+;;; are hoping to match it up with. In actuality, esi and edi are
+;;; both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and edx is
+;;; initialized to -(MAX_MATCH_8 - scanalign).
+*/
+        lea rsi,[r8+r10]
+        mov rdx, 0xfffffffffffffef8 //; -(MAX_MATCH_8)
+        lea rsi, [rsi + r13 + 0x0108] //;MAX_MATCH_8]
+        lea rdi, [r9 + r13 + 0x0108] //;MAX_MATCH_8]
+
+        prefetcht1 [rsi+rdx]
+        prefetcht1 [rdi+rdx]
+
+/*
+;;; Test the strings for equality, 8 bytes at a time. At the end,
+;;; adjust rdx so that it is offset to the exact byte that mismatched.
+;;;
+;;; We already know at this point that the first three bytes of the
+;;; strings match each other, and they can be safely passed over before
+;;; starting the compare loop. So what this code does is skip over 0-3
+;;; bytes, as much as necessary in order to dword-align the edi
+;;; pointer. (rsi will still be misaligned three times out of four.)
+;;;
+;;; It should be confessed that this loop usually does not represent
+;;; much of the total running time. Replacing it with a more
+;;; straightforward "rep cmpsb" would not drastically degrade
+;;; performance.
+*/
+
+LoopCmps:
+        mov rax, [rsi + rdx]
+        xor rax, [rdi + rdx]
+        jnz LeaveLoopCmps
+
+        mov rax, [rsi + rdx + 8]
+        xor rax, [rdi + rdx + 8]
+        jnz LeaveLoopCmps8
+
+
+        mov rax, [rsi + rdx + 8+8]
+        xor rax, [rdi + rdx + 8+8]
+        jnz LeaveLoopCmps16
+
+        add rdx,8+8+8
+
+		BEFORE_JMP
+        jnz  LoopCmps
+        jmp  LenMaximum
+		AFTER_JMP
+		
+LeaveLoopCmps16: add rdx,8
+LeaveLoopCmps8: add rdx,8
+LeaveLoopCmps:
+
+        test    eax, 0x0000FFFF
+        jnz LenLower
+
+        test eax,0xffffffff
+
+        jnz LenLower32
+
+        add rdx,4
+        shr rax,32
+        or ax,ax
+		BEFORE_JMP
+        jnz LenLower
+		AFTER_JMP
+
+LenLower32:
+        shr eax,16
+        add rdx,2
+		
+LenLower:		
+        sub al, 1
+        adc rdx, 0
+//;;; Calculate the length of the match. If it is longer than MAX_MATCH,
+//;;; then automatically accept it as the best possible match and leave.
+
+        lea rax, [rdi + rdx]
+        sub rax, r9
+        cmp eax, MAX_MATCH
+		BEFORE_JMP
+        jge LenMaximum
+		AFTER_JMP
+/*
+;;; If the length of the match is not longer than the best match we
+;;; have so far, then forget it and return to the lookup loop.
+;///////////////////////////////////
+*/
+        cmp eax, r11d
+        jg  LongerMatch
+
+        lea rsi,[r10+r11]
+
+        mov rdi, prev_ad
+        mov edx, [chainlenwmask]
+		BEFORE_JMP
+        jmp LookupLoop
+		AFTER_JMP
+/*
+;;;         s->match_start = cur_match;
+;;;         best_len = len;
+;;;         if (len >= nice_match) break;
+;;;         scan_end = *(ushf*)(scan+best_len-1);
+*/
+LongerMatch:
+        mov r11d, eax
+        mov match_start, r8d
+        cmp eax, [nicematch]
+		BEFORE_JMP
+        jge LeaveNow
+		AFTER_JMP
+
+        lea rsi,[r10+rax]
+
+        movzx   ebx, word ptr [r9 + rax - 1]
+        mov rdi, prev_ad
+        mov edx, [chainlenwmask]
+		BEFORE_JMP
+        jmp LookupLoop
+		AFTER_JMP
+
+//;;; Accept the current string, with the maximum possible length.
+
+LenMaximum:
+        mov r11d,MAX_MATCH
+        mov match_start, r8d
+
+//;;; if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
+//;;; return s->lookahead;
+
+LeaveNow:
+        mov eax, Lookahead
+        cmp r11d, eax
+        cmovng eax, r11d
+
+
+
+//;;; Restore the stack and return from whence we came.
+
+
+//        mov rsi,[save_rsi]
+//        mov rdi,[save_rdi]
+        mov rbx,[save_rbx]
+        mov rbp,[save_rbp]
+        mov r12,[save_r12]
+        mov r13,[save_r13]
+        mov r14,[save_r14]
+        mov r15,[save_r15]
+
+
+        ret 0
+//; please don't remove this string !
+//; Your can freely use gvmat64 in any free or commercial app
+//; but it is far better don't remove the string in the binary!
+ //   db     0dh,0ah,"asm686 with masm, optimised assembly code from Brian Raiter, written 1998, converted to amd 64 by Gilles Vollant 2005",0dh,0ah,0
+
+
+match_init:
+  ret 0
+
+
diff --git a/compat/zlib/contrib/infback9/README b/compat/zlib/contrib/infback9/README
new file mode 100644
index 0000000..e75ed13
--- /dev/null
+++ b/compat/zlib/contrib/infback9/README
@@ -0,0 +1 @@
+See infback9.h for what this is and how to use it.
diff --git a/compat/zlib/contrib/infback9/infback9.c b/compat/zlib/contrib/infback9/infback9.c
new file mode 100644
index 0000000..742a392
--- /dev/null
+++ b/compat/zlib/contrib/infback9/infback9.c
@@ -0,0 +1,603 @@
+/* infback9.c -- inflate deflate64 data using a call-back interface
+ * Copyright (C) 1995-2008 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "zutil.h"
+#include "infback9.h"
+#include "inftree9.h"
+#include "inflate9.h"
+
+#define WSIZE 65536UL
+
+/*
+   strm provides memory allocation functions in zalloc and zfree, or
+   Z_NULL to use the library memory allocation functions.
+
+   window is a user-supplied window and output buffer that is 64K bytes.
+ */
+int ZEXPORT inflateBack9Init_(z_stream FAR *strm, unsigned char FAR *window,
+                              const char *version, int stream_size) {
+    struct inflate_state FAR *state;
+
+    if (version == Z_NULL || version[0] != ZLIB_VERSION[0] ||
+        stream_size != (int)(sizeof(z_stream)))
+        return Z_VERSION_ERROR;
+    if (strm == Z_NULL || window == Z_NULL)
+        return Z_STREAM_ERROR;
+    strm->msg = Z_NULL;                 /* in case we return an error */
+    if (strm->zalloc == (alloc_func)0) {
+        strm->zalloc = zcalloc;
+        strm->opaque = (voidpf)0;
+    }
+    if (strm->zfree == (free_func)0) strm->zfree = zcfree;
+    state = (struct inflate_state FAR *)ZALLOC(strm, 1,
+                                               sizeof(struct inflate_state));
+    if (state == Z_NULL) return Z_MEM_ERROR;
+    Tracev((stderr, "inflate: allocated\n"));
+    strm->state = (voidpf)state;
+    state->window = window;
+    return Z_OK;
+}
+
+/*
+   Build and output length and distance decoding tables for fixed code
+   decoding.
+ */
+#ifdef MAKEFIXED
+#include <stdio.h>
+
+void makefixed9(void) {
+    unsigned sym, bits, low, size;
+    code *next, *lenfix, *distfix;
+    struct inflate_state state;
+    code fixed[544];
+
+    /* literal/length table */
+    sym = 0;
+    while (sym < 144) state.lens[sym++] = 8;
+    while (sym < 256) state.lens[sym++] = 9;
+    while (sym < 280) state.lens[sym++] = 7;
+    while (sym < 288) state.lens[sym++] = 8;
+    next = fixed;
+    lenfix = next;
+    bits = 9;
+    inflate_table9(LENS, state.lens, 288, &(next), &(bits), state.work);
+
+    /* distance table */
+    sym = 0;
+    while (sym < 32) state.lens[sym++] = 5;
+    distfix = next;
+    bits = 5;
+    inflate_table9(DISTS, state.lens, 32, &(next), &(bits), state.work);
+
+    /* write tables */
+    puts("    /* inffix9.h -- table for decoding deflate64 fixed codes");
+    puts("     * Generated automatically by makefixed9().");
+    puts("     */");
+    puts("");
+    puts("    /* WARNING: this file should *not* be used by applications.");
+    puts("       It is part of the implementation of this library and is");
+    puts("       subject to change. Applications should only use zlib.h.");
+    puts("     */");
+    puts("");
+    size = 1U << 9;
+    printf("    static const code lenfix[%u] = {", size);
+    low = 0;
+    for (;;) {
+        if ((low % 6) == 0) printf("\n        ");
+        printf("{%u,%u,%d}", lenfix[low].op, lenfix[low].bits,
+               lenfix[low].val);
+        if (++low == size) break;
+        putchar(',');
+    }
+    puts("\n    };");
+    size = 1U << 5;
+    printf("\n    static const code distfix[%u] = {", size);
+    low = 0;
+    for (;;) {
+        if ((low % 5) == 0) printf("\n        ");
+        printf("{%u,%u,%d}", distfix[low].op, distfix[low].bits,
+               distfix[low].val);
+        if (++low == size) break;
+        putchar(',');
+    }
+    puts("\n    };");
+}
+#endif /* MAKEFIXED */
+
+/* Macros for inflateBack(): */
+
+/* Clear the input bit accumulator */
+#define INITBITS() \
+    do { \
+        hold = 0; \
+        bits = 0; \
+    } while (0)
+
+/* Assure that some input is available.  If input is requested, but denied,
+   then return a Z_BUF_ERROR from inflateBack(). */
+#define PULL() \
+    do { \
+        if (have == 0) { \
+            have = in(in_desc, &next); \
+            if (have == 0) { \
+                next = Z_NULL; \
+                ret = Z_BUF_ERROR; \
+                goto inf_leave; \
+            } \
+        } \
+    } while (0)
+
+/* Get a byte of input into the bit accumulator, or return from inflateBack()
+   with an error if there is no input available. */
+#define PULLBYTE() \
+    do { \
+        PULL(); \
+        have--; \
+        hold += (unsigned long)(*next++) << bits; \
+        bits += 8; \
+    } while (0)
+
+/* Assure that there are at least n bits in the bit accumulator.  If there is
+   not enough available input to do that, then return from inflateBack() with
+   an error. */
+#define NEEDBITS(n) \
+    do { \
+        while (bits < (unsigned)(n)) \
+            PULLBYTE(); \
+    } while (0)
+
+/* Return the low n bits of the bit accumulator (n <= 16) */
+#define BITS(n) \
+    ((unsigned)hold & ((1U << (n)) - 1))
+
+/* Remove n bits from the bit accumulator */
+#define DROPBITS(n) \
+    do { \
+        hold >>= (n); \
+        bits -= (unsigned)(n); \
+    } while (0)
+
+/* Remove zero to seven bits as needed to go to a byte boundary */
+#define BYTEBITS() \
+    do { \
+        hold >>= bits & 7; \
+        bits -= bits & 7; \
+    } while (0)
+
+/* Assure that some output space is available, by writing out the window
+   if it's full.  If the write fails, return from inflateBack() with a
+   Z_BUF_ERROR. */
+#define ROOM() \
+    do { \
+        if (left == 0) { \
+            put = window; \
+            left = WSIZE; \
+            wrap = 1; \
+            if (out(out_desc, put, (unsigned)left)) { \
+                ret = Z_BUF_ERROR; \
+                goto inf_leave; \
+            } \
+        } \
+    } while (0)
+
+/*
+   strm provides the memory allocation functions and window buffer on input,
+   and provides information on the unused input on return.  For Z_DATA_ERROR
+   returns, strm will also provide an error message.
+
+   in() and out() are the call-back input and output functions.  When
+   inflateBack() needs more input, it calls in().  When inflateBack() has
+   filled the window with output, or when it completes with data in the
+   window, it calls out() to write out the data.  The application must not
+   change the provided input until in() is called again or inflateBack()
+   returns.  The application must not change the window/output buffer until
+   inflateBack() returns.
+
+   in() and out() are called with a descriptor parameter provided in the
+   inflateBack() call.  This parameter can be a structure that provides the
+   information required to do the read or write, as well as accumulated
+   information on the input and output such as totals and check values.
+
+   in() should return zero on failure.  out() should return non-zero on
+   failure.  If either in() or out() fails, than inflateBack() returns a
+   Z_BUF_ERROR.  strm->next_in can be checked for Z_NULL to see whether it
+   was in() or out() that caused in the error.  Otherwise,  inflateBack()
+   returns Z_STREAM_END on success, Z_DATA_ERROR for an deflate format
+   error, or Z_MEM_ERROR if it could not allocate memory for the state.
+   inflateBack() can also return Z_STREAM_ERROR if the input parameters
+   are not correct, i.e. strm is Z_NULL or the state was not initialized.
+ */
+int ZEXPORT inflateBack9(z_stream FAR *strm, in_func in, void FAR *in_desc,
+                         out_func out, void FAR *out_desc) {
+    struct inflate_state FAR *state;
+    z_const unsigned char FAR *next;    /* next input */
+    unsigned char FAR *put;     /* next output */
+    unsigned have;              /* available input */
+    unsigned long left;         /* available output */
+    inflate_mode mode;          /* current inflate mode */
+    int lastblock;              /* true if processing last block */
+    int wrap;                   /* true if the window has wrapped */
+    unsigned char FAR *window;  /* allocated sliding window, if needed */
+    unsigned long hold;         /* bit buffer */
+    unsigned bits;              /* bits in bit buffer */
+    unsigned extra;             /* extra bits needed */
+    unsigned long length;       /* literal or length of data to copy */
+    unsigned long offset;       /* distance back to copy string from */
+    unsigned long copy;         /* number of stored or match bytes to copy */
+    unsigned char FAR *from;    /* where to copy match bytes from */
+    code const FAR *lencode;    /* starting table for length/literal codes */
+    code const FAR *distcode;   /* starting table for distance codes */
+    unsigned lenbits;           /* index bits for lencode */
+    unsigned distbits;          /* index bits for distcode */
+    code here;                  /* current decoding table entry */
+    code last;                  /* parent table entry */
+    unsigned len;               /* length to copy for repeats, bits to drop */
+    int ret;                    /* return code */
+    static const unsigned short order[19] = /* permutation of code lengths */
+        {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
+#include "inffix9.h"
+
+    /* Check that the strm exists and that the state was initialized */
+    if (strm == Z_NULL || strm->state == Z_NULL)
+        return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+
+    /* Reset the state */
+    strm->msg = Z_NULL;
+    mode = TYPE;
+    lastblock = 0;
+    wrap = 0;
+    window = state->window;
+    next = strm->next_in;
+    have = next != Z_NULL ? strm->avail_in : 0;
+    hold = 0;
+    bits = 0;
+    put = window;
+    left = WSIZE;
+    lencode = Z_NULL;
+    distcode = Z_NULL;
+
+    /* Inflate until end of block marked as last */
+    for (;;)
+        switch (mode) {
+        case TYPE:
+            /* determine and dispatch block type */
+            if (lastblock) {
+                BYTEBITS();
+                mode = DONE;
+                break;
+            }
+            NEEDBITS(3);
+            lastblock = BITS(1);
+            DROPBITS(1);
+            switch (BITS(2)) {
+            case 0:                             /* stored block */
+                Tracev((stderr, "inflate:     stored block%s\n",
+                        lastblock ? " (last)" : ""));
+                mode = STORED;
+                break;
+            case 1:                             /* fixed block */
+                lencode = lenfix;
+                lenbits = 9;
+                distcode = distfix;
+                distbits = 5;
+                Tracev((stderr, "inflate:     fixed codes block%s\n",
+                        lastblock ? " (last)" : ""));
+                mode = LEN;                     /* decode codes */
+                break;
+            case 2:                             /* dynamic block */
+                Tracev((stderr, "inflate:     dynamic codes block%s\n",
+                        lastblock ? " (last)" : ""));
+                mode = TABLE;
+                break;
+            case 3:
+                strm->msg = (char *)"invalid block type";
+                mode = BAD;
+            }
+            DROPBITS(2);
+            break;
+
+        case STORED:
+            /* get and verify stored block length */
+            BYTEBITS();                         /* go to byte boundary */
+            NEEDBITS(32);
+            if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) {
+                strm->msg = (char *)"invalid stored block lengths";
+                mode = BAD;
+                break;
+            }
+            length = (unsigned)hold & 0xffff;
+            Tracev((stderr, "inflate:       stored length %lu\n",
+                    length));
+            INITBITS();
+
+            /* copy stored block from input to output */
+            while (length != 0) {
+                copy = length;
+                PULL();
+                ROOM();
+                if (copy > have) copy = have;
+                if (copy > left) copy = left;
+                zmemcpy(put, next, copy);
+                have -= copy;
+                next += copy;
+                left -= copy;
+                put += copy;
+                length -= copy;
+            }
+            Tracev((stderr, "inflate:       stored end\n"));
+            mode = TYPE;
+            break;
+
+        case TABLE:
+            /* get dynamic table entries descriptor */
+            NEEDBITS(14);
+            state->nlen = BITS(5) + 257;
+            DROPBITS(5);
+            state->ndist = BITS(5) + 1;
+            DROPBITS(5);
+            state->ncode = BITS(4) + 4;
+            DROPBITS(4);
+            if (state->nlen > 286) {
+                strm->msg = (char *)"too many length symbols";
+                mode = BAD;
+                break;
+            }
+            Tracev((stderr, "inflate:       table sizes ok\n"));
+
+            /* get code length code lengths (not a typo) */
+            state->have = 0;
+            while (state->have < state->ncode) {
+                NEEDBITS(3);
+                state->lens[order[state->have++]] = (unsigned short)BITS(3);
+                DROPBITS(3);
+            }
+            while (state->have < 19)
+                state->lens[order[state->have++]] = 0;
+            state->next = state->codes;
+            lencode = (code const FAR *)(state->next);
+            lenbits = 7;
+            ret = inflate_table9(CODES, state->lens, 19, &(state->next),
+                                &(lenbits), state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid code lengths set";
+                mode = BAD;
+                break;
+            }
+            Tracev((stderr, "inflate:       code lengths ok\n"));
+
+            /* get length and distance code code lengths */
+            state->have = 0;
+            while (state->have < state->nlen + state->ndist) {
+                for (;;) {
+                    here = lencode[BITS(lenbits)];
+                    if ((unsigned)(here.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                if (here.val < 16) {
+                    NEEDBITS(here.bits);
+                    DROPBITS(here.bits);
+                    state->lens[state->have++] = here.val;
+                }
+                else {
+                    if (here.val == 16) {
+                        NEEDBITS(here.bits + 2);
+                        DROPBITS(here.bits);
+                        if (state->have == 0) {
+                            strm->msg = (char *)"invalid bit length repeat";
+                            mode = BAD;
+                            break;
+                        }
+                        len = (unsigned)(state->lens[state->have - 1]);
+                        copy = 3 + BITS(2);
+                        DROPBITS(2);
+                    }
+                    else if (here.val == 17) {
+                        NEEDBITS(here.bits + 3);
+                        DROPBITS(here.bits);
+                        len = 0;
+                        copy = 3 + BITS(3);
+                        DROPBITS(3);
+                    }
+                    else {
+                        NEEDBITS(here.bits + 7);
+                        DROPBITS(here.bits);
+                        len = 0;
+                        copy = 11 + BITS(7);
+                        DROPBITS(7);
+                    }
+                    if (state->have + copy > state->nlen + state->ndist) {
+                        strm->msg = (char *)"invalid bit length repeat";
+                        mode = BAD;
+                        break;
+                    }
+                    while (copy--)
+                        state->lens[state->have++] = (unsigned short)len;
+                }
+            }
+
+            /* handle error breaks in while */
+            if (mode == BAD) break;
+
+            /* check for end-of-block code (better have one) */
+            if (state->lens[256] == 0) {
+                strm->msg = (char *)"invalid code -- missing end-of-block";
+                mode = BAD;
+                break;
+            }
+
+            /* build code tables -- note: do not change the lenbits or distbits
+               values here (9 and 6) without reading the comments in inftree9.h
+               concerning the ENOUGH constants, which depend on those values */
+            state->next = state->codes;
+            lencode = (code const FAR *)(state->next);
+            lenbits = 9;
+            ret = inflate_table9(LENS, state->lens, state->nlen,
+                            &(state->next), &(lenbits), state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid literal/lengths set";
+                mode = BAD;
+                break;
+            }
+            distcode = (code const FAR *)(state->next);
+            distbits = 6;
+            ret = inflate_table9(DISTS, state->lens + state->nlen,
+                            state->ndist, &(state->next), &(distbits),
+                            state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid distances set";
+                mode = BAD;
+                break;
+            }
+            Tracev((stderr, "inflate:       codes ok\n"));
+            mode = LEN;
+
+        case LEN:
+            /* get a literal, length, or end-of-block code */
+            for (;;) {
+                here = lencode[BITS(lenbits)];
+                if ((unsigned)(here.bits) <= bits) break;
+                PULLBYTE();
+            }
+            if (here.op && (here.op & 0xf0) == 0) {
+                last = here;
+                for (;;) {
+                    here = lencode[last.val +
+                            (BITS(last.bits + last.op) >> last.bits)];
+                    if ((unsigned)(last.bits + here.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                DROPBITS(last.bits);
+            }
+            DROPBITS(here.bits);
+            length = (unsigned)here.val;
+
+            /* process literal */
+            if (here.op == 0) {
+                Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
+                        "inflate:         literal '%c'\n" :
+                        "inflate:         literal 0x%02x\n", here.val));
+                ROOM();
+                *put++ = (unsigned char)(length);
+                left--;
+                mode = LEN;
+                break;
+            }
+
+            /* process end of block */
+            if (here.op & 32) {
+                Tracevv((stderr, "inflate:         end of block\n"));
+                mode = TYPE;
+                break;
+            }
+
+            /* invalid code */
+            if (here.op & 64) {
+                strm->msg = (char *)"invalid literal/length code";
+                mode = BAD;
+                break;
+            }
+
+            /* length code -- get extra bits, if any */
+            extra = (unsigned)(here.op) & 31;
+            if (extra != 0) {
+                NEEDBITS(extra);
+                length += BITS(extra);
+                DROPBITS(extra);
+            }
+            Tracevv((stderr, "inflate:         length %lu\n", length));
+
+            /* get distance code */
+            for (;;) {
+                here = distcode[BITS(distbits)];
+                if ((unsigned)(here.bits) <= bits) break;
+                PULLBYTE();
+            }
+            if ((here.op & 0xf0) == 0) {
+                last = here;
+                for (;;) {
+                    here = distcode[last.val +
+                            (BITS(last.bits + last.op) >> last.bits)];
+                    if ((unsigned)(last.bits + here.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                DROPBITS(last.bits);
+            }
+            DROPBITS(here.bits);
+            if (here.op & 64) {
+                strm->msg = (char *)"invalid distance code";
+                mode = BAD;
+                break;
+            }
+            offset = (unsigned)here.val;
+
+            /* get distance extra bits, if any */
+            extra = (unsigned)(here.op) & 15;
+            if (extra != 0) {
+                NEEDBITS(extra);
+                offset += BITS(extra);
+                DROPBITS(extra);
+            }
+            if (offset > WSIZE - (wrap ? 0: left)) {
+                strm->msg = (char *)"invalid distance too far back";
+                mode = BAD;
+                break;
+            }
+            Tracevv((stderr, "inflate:         distance %lu\n", offset));
+
+            /* copy match from window to output */
+            do {
+                ROOM();
+                copy = WSIZE - offset;
+                if (copy < left) {
+                    from = put + copy;
+                    copy = left - copy;
+                }
+                else {
+                    from = put - offset;
+                    copy = left;
+                }
+                if (copy > length) copy = length;
+                length -= copy;
+                left -= copy;
+                do {
+                    *put++ = *from++;
+                } while (--copy);
+            } while (length != 0);
+            break;
+
+        case DONE:
+            /* inflate stream terminated properly -- write leftover output */
+            ret = Z_STREAM_END;
+            if (left < WSIZE) {
+                if (out(out_desc, window, (unsigned)(WSIZE - left)))
+                    ret = Z_BUF_ERROR;
+            }
+            goto inf_leave;
+
+        case BAD:
+            ret = Z_DATA_ERROR;
+            goto inf_leave;
+
+        default:                /* can't happen, but makes compilers happy */
+            ret = Z_STREAM_ERROR;
+            goto inf_leave;
+        }
+
+    /* Return unused input */
+  inf_leave:
+    strm->next_in = next;
+    strm->avail_in = have;
+    return ret;
+}
+
+int ZEXPORT inflateBack9End(z_stream FAR *strm) {
+    if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0)
+        return Z_STREAM_ERROR;
+    ZFREE(strm, strm->state);
+    strm->state = Z_NULL;
+    Tracev((stderr, "inflate: end\n"));
+    return Z_OK;
+}
diff --git a/compat/zlib/contrib/infback9/infback9.h b/compat/zlib/contrib/infback9/infback9.h
new file mode 100644
index 0000000..8371b4e
--- /dev/null
+++ b/compat/zlib/contrib/infback9/infback9.h
@@ -0,0 +1,37 @@
+/* infback9.h -- header for using inflateBack9 functions
+ * Copyright (C) 2003 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/*
+ * This header file and associated patches provide a decoder for PKWare's
+ * undocumented deflate64 compression method (method 9).  Use with infback9.c,
+ * inftree9.h, inftree9.c, and inffix9.h.  These patches are not supported.
+ * This should be compiled with zlib, since it uses zutil.h and zutil.o.
+ * This code has not yet been tested on 16-bit architectures.  See the
+ * comments in zlib.h for inflateBack() usage.  These functions are used
+ * identically, except that there is no windowBits parameter, and a 64K
+ * window must be provided.  Also if int's are 16 bits, then a zero for
+ * the third parameter of the "out" function actually means 65536UL.
+ * zlib.h must be included before this header file.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+ZEXTERN int ZEXPORT inflateBack9(z_stream FAR *strm,
+                                 in_func in, void FAR *in_desc,
+                                 out_func out, void FAR *out_desc);
+ZEXTERN int ZEXPORT inflateBack9End(z_stream FAR *strm);
+ZEXTERN int ZEXPORT inflateBack9Init_(z_stream FAR *strm,
+                                      unsigned char FAR *window,
+                                      const char *version,
+                                      int stream_size);
+#define inflateBack9Init(strm, window) \
+        inflateBack9Init_((strm), (window), \
+        ZLIB_VERSION, sizeof(z_stream))
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/compat/zlib/contrib/infback9/inffix9.h b/compat/zlib/contrib/infback9/inffix9.h
new file mode 100644
index 0000000..ee5671d
--- /dev/null
+++ b/compat/zlib/contrib/infback9/inffix9.h
@@ -0,0 +1,107 @@
+    /* inffix9.h -- table for decoding deflate64 fixed codes
+     * Generated automatically by makefixed9().
+     */
+
+    /* WARNING: this file should *not* be used by applications.
+       It is part of the implementation of this library and is
+       subject to change. Applications should only use zlib.h.
+     */
+
+    static const code lenfix[512] = {
+        {96,7,0},{0,8,80},{0,8,16},{132,8,115},{130,7,31},{0,8,112},
+        {0,8,48},{0,9,192},{128,7,10},{0,8,96},{0,8,32},{0,9,160},
+        {0,8,0},{0,8,128},{0,8,64},{0,9,224},{128,7,6},{0,8,88},
+        {0,8,24},{0,9,144},{131,7,59},{0,8,120},{0,8,56},{0,9,208},
+        {129,7,17},{0,8,104},{0,8,40},{0,9,176},{0,8,8},{0,8,136},
+        {0,8,72},{0,9,240},{128,7,4},{0,8,84},{0,8,20},{133,8,227},
+        {131,7,43},{0,8,116},{0,8,52},{0,9,200},{129,7,13},{0,8,100},
+        {0,8,36},{0,9,168},{0,8,4},{0,8,132},{0,8,68},{0,9,232},
+        {128,7,8},{0,8,92},{0,8,28},{0,9,152},{132,7,83},{0,8,124},
+        {0,8,60},{0,9,216},{130,7,23},{0,8,108},{0,8,44},{0,9,184},
+        {0,8,12},{0,8,140},{0,8,76},{0,9,248},{128,7,3},{0,8,82},
+        {0,8,18},{133,8,163},{131,7,35},{0,8,114},{0,8,50},{0,9,196},
+        {129,7,11},{0,8,98},{0,8,34},{0,9,164},{0,8,2},{0,8,130},
+        {0,8,66},{0,9,228},{128,7,7},{0,8,90},{0,8,26},{0,9,148},
+        {132,7,67},{0,8,122},{0,8,58},{0,9,212},{130,7,19},{0,8,106},
+        {0,8,42},{0,9,180},{0,8,10},{0,8,138},{0,8,74},{0,9,244},
+        {128,7,5},{0,8,86},{0,8,22},{65,8,0},{131,7,51},{0,8,118},
+        {0,8,54},{0,9,204},{129,7,15},{0,8,102},{0,8,38},{0,9,172},
+        {0,8,6},{0,8,134},{0,8,70},{0,9,236},{128,7,9},{0,8,94},
+        {0,8,30},{0,9,156},{132,7,99},{0,8,126},{0,8,62},{0,9,220},
+        {130,7,27},{0,8,110},{0,8,46},{0,9,188},{0,8,14},{0,8,142},
+        {0,8,78},{0,9,252},{96,7,0},{0,8,81},{0,8,17},{133,8,131},
+        {130,7,31},{0,8,113},{0,8,49},{0,9,194},{128,7,10},{0,8,97},
+        {0,8,33},{0,9,162},{0,8,1},{0,8,129},{0,8,65},{0,9,226},
+        {128,7,6},{0,8,89},{0,8,25},{0,9,146},{131,7,59},{0,8,121},
+        {0,8,57},{0,9,210},{129,7,17},{0,8,105},{0,8,41},{0,9,178},
+        {0,8,9},{0,8,137},{0,8,73},{0,9,242},{128,7,4},{0,8,85},
+        {0,8,21},{144,8,3},{131,7,43},{0,8,117},{0,8,53},{0,9,202},
+        {129,7,13},{0,8,101},{0,8,37},{0,9,170},{0,8,5},{0,8,133},
+        {0,8,69},{0,9,234},{128,7,8},{0,8,93},{0,8,29},{0,9,154},
+        {132,7,83},{0,8,125},{0,8,61},{0,9,218},{130,7,23},{0,8,109},
+        {0,8,45},{0,9,186},{0,8,13},{0,8,141},{0,8,77},{0,9,250},
+        {128,7,3},{0,8,83},{0,8,19},{133,8,195},{131,7,35},{0,8,115},
+        {0,8,51},{0,9,198},{129,7,11},{0,8,99},{0,8,35},{0,9,166},
+        {0,8,3},{0,8,131},{0,8,67},{0,9,230},{128,7,7},{0,8,91},
+        {0,8,27},{0,9,150},{132,7,67},{0,8,123},{0,8,59},{0,9,214},
+        {130,7,19},{0,8,107},{0,8,43},{0,9,182},{0,8,11},{0,8,139},
+        {0,8,75},{0,9,246},{128,7,5},{0,8,87},{0,8,23},{77,8,0},
+        {131,7,51},{0,8,119},{0,8,55},{0,9,206},{129,7,15},{0,8,103},
+        {0,8,39},{0,9,174},{0,8,7},{0,8,135},{0,8,71},{0,9,238},
+        {128,7,9},{0,8,95},{0,8,31},{0,9,158},{132,7,99},{0,8,127},
+        {0,8,63},{0,9,222},{130,7,27},{0,8,111},{0,8,47},{0,9,190},
+        {0,8,15},{0,8,143},{0,8,79},{0,9,254},{96,7,0},{0,8,80},
+        {0,8,16},{132,8,115},{130,7,31},{0,8,112},{0,8,48},{0,9,193},
+        {128,7,10},{0,8,96},{0,8,32},{0,9,161},{0,8,0},{0,8,128},
+        {0,8,64},{0,9,225},{128,7,6},{0,8,88},{0,8,24},{0,9,145},
+        {131,7,59},{0,8,120},{0,8,56},{0,9,209},{129,7,17},{0,8,104},
+        {0,8,40},{0,9,177},{0,8,8},{0,8,136},{0,8,72},{0,9,241},
+        {128,7,4},{0,8,84},{0,8,20},{133,8,227},{131,7,43},{0,8,116},
+        {0,8,52},{0,9,201},{129,7,13},{0,8,100},{0,8,36},{0,9,169},
+        {0,8,4},{0,8,132},{0,8,68},{0,9,233},{128,7,8},{0,8,92},
+        {0,8,28},{0,9,153},{132,7,83},{0,8,124},{0,8,60},{0,9,217},
+        {130,7,23},{0,8,108},{0,8,44},{0,9,185},{0,8,12},{0,8,140},
+        {0,8,76},{0,9,249},{128,7,3},{0,8,82},{0,8,18},{133,8,163},
+        {131,7,35},{0,8,114},{0,8,50},{0,9,197},{129,7,11},{0,8,98},
+        {0,8,34},{0,9,165},{0,8,2},{0,8,130},{0,8,66},{0,9,229},
+        {128,7,7},{0,8,90},{0,8,26},{0,9,149},{132,7,67},{0,8,122},
+        {0,8,58},{0,9,213},{130,7,19},{0,8,106},{0,8,42},{0,9,181},
+        {0,8,10},{0,8,138},{0,8,74},{0,9,245},{128,7,5},{0,8,86},
+        {0,8,22},{65,8,0},{131,7,51},{0,8,118},{0,8,54},{0,9,205},
+        {129,7,15},{0,8,102},{0,8,38},{0,9,173},{0,8,6},{0,8,134},
+        {0,8,70},{0,9,237},{128,7,9},{0,8,94},{0,8,30},{0,9,157},
+        {132,7,99},{0,8,126},{0,8,62},{0,9,221},{130,7,27},{0,8,110},
+        {0,8,46},{0,9,189},{0,8,14},{0,8,142},{0,8,78},{0,9,253},
+        {96,7,0},{0,8,81},{0,8,17},{133,8,131},{130,7,31},{0,8,113},
+        {0,8,49},{0,9,195},{128,7,10},{0,8,97},{0,8,33},{0,9,163},
+        {0,8,1},{0,8,129},{0,8,65},{0,9,227},{128,7,6},{0,8,89},
+        {0,8,25},{0,9,147},{131,7,59},{0,8,121},{0,8,57},{0,9,211},
+        {129,7,17},{0,8,105},{0,8,41},{0,9,179},{0,8,9},{0,8,137},
+        {0,8,73},{0,9,243},{128,7,4},{0,8,85},{0,8,21},{144,8,3},
+        {131,7,43},{0,8,117},{0,8,53},{0,9,203},{129,7,13},{0,8,101},
+        {0,8,37},{0,9,171},{0,8,5},{0,8,133},{0,8,69},{0,9,235},
+        {128,7,8},{0,8,93},{0,8,29},{0,9,155},{132,7,83},{0,8,125},
+        {0,8,61},{0,9,219},{130,7,23},{0,8,109},{0,8,45},{0,9,187},
+        {0,8,13},{0,8,141},{0,8,77},{0,9,251},{128,7,3},{0,8,83},
+        {0,8,19},{133,8,195},{131,7,35},{0,8,115},{0,8,51},{0,9,199},
+        {129,7,11},{0,8,99},{0,8,35},{0,9,167},{0,8,3},{0,8,131},
+        {0,8,67},{0,9,231},{128,7,7},{0,8,91},{0,8,27},{0,9,151},
+        {132,7,67},{0,8,123},{0,8,59},{0,9,215},{130,7,19},{0,8,107},
+        {0,8,43},{0,9,183},{0,8,11},{0,8,139},{0,8,75},{0,9,247},
+        {128,7,5},{0,8,87},{0,8,23},{77,8,0},{131,7,51},{0,8,119},
+        {0,8,55},{0,9,207},{129,7,15},{0,8,103},{0,8,39},{0,9,175},
+        {0,8,7},{0,8,135},{0,8,71},{0,9,239},{128,7,9},{0,8,95},
+        {0,8,31},{0,9,159},{132,7,99},{0,8,127},{0,8,63},{0,9,223},
+        {130,7,27},{0,8,111},{0,8,47},{0,9,191},{0,8,15},{0,8,143},
+        {0,8,79},{0,9,255}
+    };
+
+    static const code distfix[32] = {
+        {128,5,1},{135,5,257},{131,5,17},{139,5,4097},{129,5,5},
+        {137,5,1025},{133,5,65},{141,5,16385},{128,5,3},{136,5,513},
+        {132,5,33},{140,5,8193},{130,5,9},{138,5,2049},{134,5,129},
+        {142,5,32769},{128,5,2},{135,5,385},{131,5,25},{139,5,6145},
+        {129,5,7},{137,5,1537},{133,5,97},{141,5,24577},{128,5,4},
+        {136,5,769},{132,5,49},{140,5,12289},{130,5,13},{138,5,3073},
+        {134,5,193},{142,5,49153}
+    };
diff --git a/compat/zlib/contrib/infback9/inflate9.h b/compat/zlib/contrib/infback9/inflate9.h
new file mode 100644
index 0000000..ee9a793
--- /dev/null
+++ b/compat/zlib/contrib/infback9/inflate9.h
@@ -0,0 +1,47 @@
+/* inflate9.h -- internal inflate state definition
+ * Copyright (C) 1995-2003 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+   part of the implementation of the compression library and is
+   subject to change. Applications should only use zlib.h.
+ */
+
+/* Possible inflate modes between inflate() calls */
+typedef enum {
+        TYPE,       /* i: waiting for type bits, including last-flag bit */
+        STORED,     /* i: waiting for stored size (length and complement) */
+        TABLE,      /* i: waiting for dynamic block table lengths */
+            LEN,        /* i: waiting for length/lit code */
+    DONE,       /* finished check, done -- remain here until reset */
+    BAD         /* got a data error -- remain here until reset */
+} inflate_mode;
+
+/*
+    State transitions between above modes -
+
+    (most modes can go to the BAD mode -- not shown for clarity)
+
+    Read deflate blocks:
+            TYPE -> STORED or TABLE or LEN or DONE
+            STORED -> TYPE
+            TABLE -> LENLENS -> CODELENS -> LEN
+    Read deflate codes:
+                LEN -> LEN or TYPE
+ */
+
+/* state maintained between inflate() calls.  Approximately 7K bytes. */
+struct inflate_state {
+        /* sliding window */
+    unsigned char FAR *window;  /* allocated sliding window, if needed */
+        /* dynamic table building */
+    unsigned ncode;             /* number of code length code lengths */
+    unsigned nlen;              /* number of length code lengths */
+    unsigned ndist;             /* number of distance code lengths */
+    unsigned have;              /* number of code lengths in lens[] */
+    code FAR *next;             /* next available space in codes[] */
+    unsigned short lens[320];   /* temporary storage for code lengths */
+    unsigned short work[288];   /* work area for code table building */
+    code codes[ENOUGH];         /* space for code tables */
+};
diff --git a/compat/zlib/contrib/infback9/inftree9.c b/compat/zlib/contrib/infback9/inftree9.c
new file mode 100644
index 0000000..ac707ed
--- /dev/null
+++ b/compat/zlib/contrib/infback9/inftree9.c
@@ -0,0 +1,319 @@
+/* inftree9.c -- generate Huffman trees for efficient decoding
+ * Copyright (C) 1995-2024 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "zutil.h"
+#include "inftree9.h"
+
+#define MAXBITS 15
+
+const char inflate9_copyright[] =
+   " inflate9 1.3.1 Copyright 1995-2024 Mark Adler ";
+/*
+  If you use the zlib library in a product, an acknowledgment is welcome
+  in the documentation of your product. If for some reason you cannot
+  include such an acknowledgment, I would appreciate that you keep this
+  copyright string in the executable of your product.
+ */
+
+/*
+   Build a set of tables to decode the provided canonical Huffman code.
+   The code lengths are lens[0..codes-1].  The result starts at *table,
+   whose indices are 0..2^bits-1.  work is a writable array of at least
+   lens shorts, which is used as a work area.  type is the type of code
+   to be generated, CODES, LENS, or DISTS.  On return, zero is success,
+   -1 is an invalid code, and +1 means that ENOUGH isn't enough.  table
+   on return points to the next available entry's address.  bits is the
+   requested root table index bits, and on return it is the actual root
+   table index bits.  It will differ if the request is greater than the
+   longest code or if it is less than the shortest code.
+ */
+int inflate_table9(codetype type, unsigned short FAR *lens, unsigned codes,
+                   code FAR * FAR *table, unsigned FAR *bits,
+                   unsigned short FAR *work) {
+    unsigned len;               /* a code's length in bits */
+    unsigned sym;               /* index of code symbols */
+    unsigned min, max;          /* minimum and maximum code lengths */
+    unsigned root;              /* number of index bits for root table */
+    unsigned curr;              /* number of index bits for current table */
+    unsigned drop;              /* code bits to drop for sub-table */
+    int left;                   /* number of prefix codes available */
+    unsigned used;              /* code entries in table used */
+    unsigned huff;              /* Huffman code */
+    unsigned incr;              /* for incrementing code, index */
+    unsigned fill;              /* index for replicating entries */
+    unsigned low;               /* low bits for current root entry */
+    unsigned mask;              /* mask for low root bits */
+    code this;                  /* table entry for duplication */
+    code FAR *next;             /* next available space in table */
+    const unsigned short FAR *base;     /* base value table to use */
+    const unsigned short FAR *extra;    /* extra bits table to use */
+    int end;                    /* use base and extra for symbol > end */
+    unsigned short count[MAXBITS+1];    /* number of codes of each length */
+    unsigned short offs[MAXBITS+1];     /* offsets in table for each length */
+    static const unsigned short lbase[31] = { /* Length codes 257..285 base */
+        3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17,
+        19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115,
+        131, 163, 195, 227, 3, 0, 0};
+    static const unsigned short lext[31] = { /* Length codes 257..285 extra */
+        128, 128, 128, 128, 128, 128, 128, 128, 129, 129, 129, 129,
+        130, 130, 130, 130, 131, 131, 131, 131, 132, 132, 132, 132,
+        133, 133, 133, 133, 144, 203, 77};
+    static const unsigned short dbase[32] = { /* Distance codes 0..31 base */
+        1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49,
+        65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073,
+        4097, 6145, 8193, 12289, 16385, 24577, 32769, 49153};
+    static const unsigned short dext[32] = { /* Distance codes 0..31 extra */
+        128, 128, 128, 128, 129, 129, 130, 130, 131, 131, 132, 132,
+        133, 133, 134, 134, 135, 135, 136, 136, 137, 137, 138, 138,
+        139, 139, 140, 140, 141, 141, 142, 142};
+
+    /*
+       Process a set of code lengths to create a canonical Huffman code.  The
+       code lengths are lens[0..codes-1].  Each length corresponds to the
+       symbols 0..codes-1.  The Huffman code is generated by first sorting the
+       symbols by length from short to long, and retaining the symbol order
+       for codes with equal lengths.  Then the code starts with all zero bits
+       for the first code of the shortest length, and the codes are integer
+       increments for the same length, and zeros are appended as the length
+       increases.  For the deflate format, these bits are stored backwards
+       from their more natural integer increment ordering, and so when the
+       decoding tables are built in the large loop below, the integer codes
+       are incremented backwards.
+
+       This routine assumes, but does not check, that all of the entries in
+       lens[] are in the range 0..MAXBITS.  The caller must assure this.
+       1..MAXBITS is interpreted as that code length.  zero means that that
+       symbol does not occur in this code.
+
+       The codes are sorted by computing a count of codes for each length,
+       creating from that a table of starting indices for each length in the
+       sorted table, and then entering the symbols in order in the sorted
+       table.  The sorted table is work[], with that space being provided by
+       the caller.
+
+       The length counts are used for other purposes as well, i.e. finding
+       the minimum and maximum length codes, determining if there are any
+       codes at all, checking for a valid set of lengths, and looking ahead
+       at length counts to determine sub-table sizes when building the
+       decoding tables.
+     */
+
+    /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */
+    for (len = 0; len <= MAXBITS; len++)
+        count[len] = 0;
+    for (sym = 0; sym < codes; sym++)
+        count[lens[sym]]++;
+
+    /* bound code lengths, force root to be within code lengths */
+    root = *bits;
+    for (max = MAXBITS; max >= 1; max--)
+        if (count[max] != 0) break;
+    if (root > max) root = max;
+    if (max == 0) return -1;            /* no codes! */
+    for (min = 1; min <= MAXBITS; min++)
+        if (count[min] != 0) break;
+    if (root < min) root = min;
+
+    /* check for an over-subscribed or incomplete set of lengths */
+    left = 1;
+    for (len = 1; len <= MAXBITS; len++) {
+        left <<= 1;
+        left -= count[len];
+        if (left < 0) return -1;        /* over-subscribed */
+    }
+    if (left > 0 && (type == CODES || max != 1))
+        return -1;                      /* incomplete set */
+
+    /* generate offsets into symbol table for each length for sorting */
+    offs[1] = 0;
+    for (len = 1; len < MAXBITS; len++)
+        offs[len + 1] = offs[len] + count[len];
+
+    /* sort symbols by length, by symbol order within each length */
+    for (sym = 0; sym < codes; sym++)
+        if (lens[sym] != 0) work[offs[lens[sym]]++] = (unsigned short)sym;
+
+    /*
+       Create and fill in decoding tables.  In this loop, the table being
+       filled is at next and has curr index bits.  The code being used is huff
+       with length len.  That code is converted to an index by dropping drop
+       bits off of the bottom.  For codes where len is less than drop + curr,
+       those top drop + curr - len bits are incremented through all values to
+       fill the table with replicated entries.
+
+       root is the number of index bits for the root table.  When len exceeds
+       root, sub-tables are created pointed to by the root entry with an index
+       of the low root bits of huff.  This is saved in low to check for when a
+       new sub-table should be started.  drop is zero when the root table is
+       being filled, and drop is root when sub-tables are being filled.
+
+       When a new sub-table is needed, it is necessary to look ahead in the
+       code lengths to determine what size sub-table is needed.  The length
+       counts are used for this, and so count[] is decremented as codes are
+       entered in the tables.
+
+       used keeps track of how many table entries have been allocated from the
+       provided *table space.  It is checked for LENS and DIST tables against
+       the constants ENOUGH_LENS and ENOUGH_DISTS to guard against changes in
+       the initial root table size constants.  See the comments in inftree9.h
+       for more information.
+
+       sym increments through all symbols, and the loop terminates when
+       all codes of length max, i.e. all codes, have been processed.  This
+       routine permits incomplete codes, so another loop after this one fills
+       in the rest of the decoding tables with invalid code markers.
+     */
+
+    /* set up for code type */
+    switch (type) {
+    case CODES:
+        base = extra = work;    /* dummy value--not used */
+        end = 19;
+        break;
+    case LENS:
+        base = lbase;
+        base -= 257;
+        extra = lext;
+        extra -= 257;
+        end = 256;
+        break;
+    default:            /* DISTS */
+        base = dbase;
+        extra = dext;
+        end = -1;
+    }
+
+    /* initialize state for loop */
+    huff = 0;                   /* starting code */
+    sym = 0;                    /* starting code symbol */
+    len = min;                  /* starting code length */
+    next = *table;              /* current table to fill in */
+    curr = root;                /* current table index bits */
+    drop = 0;                   /* current bits to drop from code for index */
+    low = (unsigned)(-1);       /* trigger new sub-table when len > root */
+    used = 1U << root;          /* use root table entries */
+    mask = used - 1;            /* mask for comparing low */
+
+    /* check available table space */
+    if ((type == LENS && used >= ENOUGH_LENS) ||
+        (type == DISTS && used >= ENOUGH_DISTS))
+        return 1;
+
+    /* process all codes and make table entries */
+    for (;;) {
+        /* create table entry */
+        this.bits = (unsigned char)(len - drop);
+        if ((int)(work[sym]) < end) {
+            this.op = (unsigned char)0;
+            this.val = work[sym];
+        }
+        else if ((int)(work[sym]) > end) {
+            this.op = (unsigned char)(extra[work[sym]]);
+            this.val = base[work[sym]];
+        }
+        else {
+            this.op = (unsigned char)(32 + 64);         /* end of block */
+            this.val = 0;
+        }
+
+        /* replicate for those indices with low len bits equal to huff */
+        incr = 1U << (len - drop);
+        fill = 1U << curr;
+        do {
+            fill -= incr;
+            next[(huff >> drop) + fill] = this;
+        } while (fill != 0);
+
+        /* backwards increment the len-bit code huff */
+        incr = 1U << (len - 1);
+        while (huff & incr)
+            incr >>= 1;
+        if (incr != 0) {
+            huff &= incr - 1;
+            huff += incr;
+        }
+        else
+            huff = 0;
+
+        /* go to next symbol, update count, len */
+        sym++;
+        if (--(count[len]) == 0) {
+            if (len == max) break;
+            len = lens[work[sym]];
+        }
+
+        /* create new sub-table if needed */
+        if (len > root && (huff & mask) != low) {
+            /* if first time, transition to sub-tables */
+            if (drop == 0)
+                drop = root;
+
+            /* increment past last table */
+            next += 1U << curr;
+
+            /* determine length of next table */
+            curr = len - drop;
+            left = (int)(1 << curr);
+            while (curr + drop < max) {
+                left -= count[curr + drop];
+                if (left <= 0) break;
+                curr++;
+                left <<= 1;
+            }
+
+            /* check for enough space */
+            used += 1U << curr;
+            if ((type == LENS && used >= ENOUGH_LENS) ||
+                (type == DISTS && used >= ENOUGH_DISTS))
+                return 1;
+
+            /* point entry in root table to sub-table */
+            low = huff & mask;
+            (*table)[low].op = (unsigned char)curr;
+            (*table)[low].bits = (unsigned char)root;
+            (*table)[low].val = (unsigned short)(next - *table);
+        }
+    }
+
+    /*
+       Fill in rest of table for incomplete codes.  This loop is similar to the
+       loop above in incrementing huff for table indices.  It is assumed that
+       len is equal to curr + drop, so there is no loop needed to increment
+       through high index bits.  When the current sub-table is filled, the loop
+       drops back to the root table to fill in any remaining entries there.
+     */
+    this.op = (unsigned char)64;                /* invalid code marker */
+    this.bits = (unsigned char)(len - drop);
+    this.val = (unsigned short)0;
+    while (huff != 0) {
+        /* when done with sub-table, drop back to root table */
+        if (drop != 0 && (huff & mask) != low) {
+            drop = 0;
+            len = root;
+            next = *table;
+            curr = root;
+            this.bits = (unsigned char)len;
+        }
+
+        /* put invalid code marker in table */
+        next[huff >> drop] = this;
+
+        /* backwards increment the len-bit code huff */
+        incr = 1U << (len - 1);
+        while (huff & incr)
+            incr >>= 1;
+        if (incr != 0) {
+            huff &= incr - 1;
+            huff += incr;
+        }
+        else
+            huff = 0;
+    }
+
+    /* set return parameters */
+    *table += used;
+    *bits = root;
+    return 0;
+}
diff --git a/compat/zlib/contrib/infback9/inftree9.h b/compat/zlib/contrib/infback9/inftree9.h
new file mode 100644
index 0000000..ab2ea28
--- /dev/null
+++ b/compat/zlib/contrib/infback9/inftree9.h
@@ -0,0 +1,61 @@
+/* inftree9.h -- header to use inftree9.c
+ * Copyright (C) 1995-2008 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+   part of the implementation of the compression library and is
+   subject to change. Applications should only use zlib.h.
+ */
+
+/* Structure for decoding tables.  Each entry provides either the
+   information needed to do the operation requested by the code that
+   indexed that table entry, or it provides a pointer to another
+   table that indexes more bits of the code.  op indicates whether
+   the entry is a pointer to another table, a literal, a length or
+   distance, an end-of-block, or an invalid code.  For a table
+   pointer, the low four bits of op is the number of index bits of
+   that table.  For a length or distance, the low four bits of op
+   is the number of extra bits to get after the code.  bits is
+   the number of bits in this code or part of the code to drop off
+   of the bit buffer.  val is the actual byte to output in the case
+   of a literal, the base length or distance, or the offset from
+   the current table to the next table.  Each entry is four bytes. */
+typedef struct {
+    unsigned char op;           /* operation, extra bits, table bits */
+    unsigned char bits;         /* bits in this part of the code */
+    unsigned short val;         /* offset in table or code value */
+} code;
+
+/* op values as set by inflate_table():
+    00000000 - literal
+    0000tttt - table link, tttt != 0 is the number of table index bits
+    100eeeee - length or distance, eeee is the number of extra bits
+    01100000 - end of block
+    01000000 - invalid code
+ */
+
+/* Maximum size of the dynamic table.  The maximum number of code structures is
+   1446, which is the sum of 852 for literal/length codes and 594 for distance
+   codes.  These values were found by exhaustive searches using the program
+   examples/enough.c found in the zlib distribution.  The arguments to that
+   program are the number of symbols, the initial root table size, and the
+   maximum bit length of a code.  "enough 286 9 15" for literal/length codes
+   returns 852, and "enough 32 6 15" for distance codes returns 594. The
+   initial root table size (9 or 6) is found in the fifth argument of the
+   inflate_table() calls in infback9.c.  If the root table size is changed,
+   then these maximum sizes would be need to be recalculated and updated. */
+#define ENOUGH_LENS 852
+#define ENOUGH_DISTS 594
+#define ENOUGH (ENOUGH_LENS+ENOUGH_DISTS)
+
+/* Type of code to build for inflate_table9() */
+typedef enum {
+    CODES,
+    LENS,
+    DISTS
+} codetype;
+
+extern int inflate_table9(codetype type, unsigned short FAR *lens,
+                          unsigned codes, code FAR * FAR *table,
+                          unsigned FAR *bits, unsigned short FAR *work);
diff --git a/compat/zlib/contrib/inflate86/inffas86.c b/compat/zlib/contrib/inflate86/inffas86.c
new file mode 100644
index 0000000..7292f67
--- /dev/null
+++ b/compat/zlib/contrib/inflate86/inffas86.c
@@ -0,0 +1,1157 @@
+/* inffas86.c is a hand tuned assembler version of
+ *
+ * inffast.c -- fast decoding
+ * Copyright (C) 1995-2003 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ *
+ * Copyright (C) 2003 Chris Anderson <christop@charm.net>
+ * Please use the copyright conditions above.
+ *
+ * Dec-29-2003 -- I added AMD64 inflate asm support.  This version is also
+ * slightly quicker on x86 systems because, instead of using rep movsb to copy
+ * data, it uses rep movsw, which moves data in 2-byte chunks instead of single
+ * bytes.  I've tested the AMD64 code on a Fedora Core 1 + the x86_64 updates
+ * from http://fedora.linux.duke.edu/fc1_x86_64
+ * which is running on an Athlon 64 3000+ / Gigabyte GA-K8VT800M system with
+ * 1GB ram.  The 64-bit version is about 4% faster than the 32-bit version,
+ * when decompressing mozilla-source-1.3.tar.gz.
+ *
+ * Mar-13-2003 -- Most of this is derived from inffast.S which is derived from
+ * the gcc -S output of zlib-1.2.0/inffast.c.  Zlib-1.2.0 is in beta release at
+ * the moment.  I have successfully compiled and tested this code with gcc2.96,
+ * gcc3.2, icc5.0, msvc6.0.  It is very close to the speed of inffast.S
+ * compiled with gcc -DNO_MMX, but inffast.S is still faster on the P3 with MMX
+ * enabled.  I will attempt to merge the MMX code into this version.  Newer
+ * versions of this and inffast.S can be found at
+ * http://www.eetbeetee.com/zlib/ and http://www.charm.net/~christop/zlib/
+ */
+
+#include "zutil.h"
+#include "inftrees.h"
+#include "inflate.h"
+#include "inffast.h"
+
+/* Mark Adler's comments from inffast.c: */
+
+/*
+   Decode literal, length, and distance codes and write out the resulting
+   literal and match bytes until either not enough input or output is
+   available, an end-of-block is encountered, or a data error is encountered.
+   When large enough input and output buffers are supplied to inflate(), for
+   example, a 16K input buffer and a 64K output buffer, more than 95% of the
+   inflate execution time is spent in this routine.
+
+   Entry assumptions:
+
+        state->mode == LEN
+        strm->avail_in >= 6
+        strm->avail_out >= 258
+        start >= strm->avail_out
+        state->bits < 8
+
+   On return, state->mode is one of:
+
+        LEN -- ran out of enough output space or enough available input
+        TYPE -- reached end of block code, inflate() to interpret next block
+        BAD -- error in block data
+
+   Notes:
+
+    - The maximum input bits used by a length/distance pair is 15 bits for the
+      length code, 5 bits for the length extra, 15 bits for the distance code,
+      and 13 bits for the distance extra.  This totals 48 bits, or six bytes.
+      Therefore if strm->avail_in >= 6, then there is enough input to avoid
+      checking for available input while decoding.
+
+    - The maximum bytes that a single length/distance pair can output is 258
+      bytes, which is the maximum length that can be coded.  inflate_fast()
+      requires strm->avail_out >= 258 for each loop to avoid checking for
+      output space.
+ */
+void inflate_fast(strm, start)
+z_streamp strm;
+unsigned start;         /* inflate()'s starting value for strm->avail_out */
+{
+    struct inflate_state FAR *state;
+    struct inffast_ar {
+/* 64   32                               x86  x86_64 */
+/* ar offset                              register */
+/*  0    0 */ void *esp;                /* esp save */
+/*  8    4 */ void *ebp;                /* ebp save */
+/* 16    8 */ unsigned char FAR *in;    /* esi rsi  local strm->next_in */
+/* 24   12 */ unsigned char FAR *last;  /*     r9   while in < last */
+/* 32   16 */ unsigned char FAR *out;   /* edi rdi  local strm->next_out */
+/* 40   20 */ unsigned char FAR *beg;   /*          inflate()'s init next_out */
+/* 48   24 */ unsigned char FAR *end;   /*     r10  while out < end */
+/* 56   28 */ unsigned char FAR *window;/*          size of window, wsize!=0 */
+/* 64   32 */ code const FAR *lcode;    /* ebp rbp  local strm->lencode */
+/* 72   36 */ code const FAR *dcode;    /*     r11  local strm->distcode */
+/* 80   40 */ unsigned long hold;       /* edx rdx  local strm->hold */
+/* 88   44 */ unsigned bits;            /* ebx rbx  local strm->bits */
+/* 92   48 */ unsigned wsize;           /*          window size */
+/* 96   52 */ unsigned write;           /*          window write index */
+/*100   56 */ unsigned lmask;           /*     r12  mask for lcode */
+/*104   60 */ unsigned dmask;           /*     r13  mask for dcode */
+/*108   64 */ unsigned len;             /*     r14  match length */
+/*112   68 */ unsigned dist;            /*     r15  match distance */
+/*116   72 */ unsigned status;          /*          set when state chng*/
+    } ar;
+
+#if defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 )
+#define PAD_AVAIL_IN 6
+#define PAD_AVAIL_OUT 258
+#else
+#define PAD_AVAIL_IN 5
+#define PAD_AVAIL_OUT 257
+#endif
+
+    /* copy state to local variables */
+    state = (struct inflate_state FAR *)strm->state;
+    ar.in = strm->next_in;
+    ar.last = ar.in + (strm->avail_in - PAD_AVAIL_IN);
+    ar.out = strm->next_out;
+    ar.beg = ar.out - (start - strm->avail_out);
+    ar.end = ar.out + (strm->avail_out - PAD_AVAIL_OUT);
+    ar.wsize = state->wsize;
+    ar.write = state->wnext;
+    ar.window = state->window;
+    ar.hold = state->hold;
+    ar.bits = state->bits;
+    ar.lcode = state->lencode;
+    ar.dcode = state->distcode;
+    ar.lmask = (1U << state->lenbits) - 1;
+    ar.dmask = (1U << state->distbits) - 1;
+
+    /* decode literals and length/distances until end-of-block or not enough
+       input data or output space */
+
+    /* align in on 1/2 hold size boundary */
+    while (((unsigned long)(void *)ar.in & (sizeof(ar.hold) / 2 - 1)) != 0) {
+        ar.hold += (unsigned long)*ar.in++ << ar.bits;
+        ar.bits += 8;
+    }
+
+#if defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 )
+    __asm__ __volatile__ (
+"        leaq    %0, %%rax\n"
+"        movq    %%rbp, 8(%%rax)\n"       /* save regs rbp and rsp */
+"        movq    %%rsp, (%%rax)\n"
+"        movq    %%rax, %%rsp\n"          /* make rsp point to &ar */
+"        movq    16(%%rsp), %%rsi\n"      /* rsi  = in */
+"        movq    32(%%rsp), %%rdi\n"      /* rdi  = out */
+"        movq    24(%%rsp), %%r9\n"       /* r9   = last */
+"        movq    48(%%rsp), %%r10\n"      /* r10  = end */
+"        movq    64(%%rsp), %%rbp\n"      /* rbp  = lcode */
+"        movq    72(%%rsp), %%r11\n"      /* r11  = dcode */
+"        movq    80(%%rsp), %%rdx\n"      /* rdx  = hold */
+"        movl    88(%%rsp), %%ebx\n"      /* ebx  = bits */
+"        movl    100(%%rsp), %%r12d\n"    /* r12d = lmask */
+"        movl    104(%%rsp), %%r13d\n"    /* r13d = dmask */
+                                          /* r14d = len */
+                                          /* r15d = dist */
+"        cld\n"
+"        cmpq    %%rdi, %%r10\n"
+"        je      .L_one_time\n"           /* if only one decode left */
+"        cmpq    %%rsi, %%r9\n"
+"        je      .L_one_time\n"
+"        jmp     .L_do_loop\n"
+
+".L_one_time:\n"
+"        movq    %%r12, %%r8\n"           /* r8 = lmask */
+"        cmpb    $32, %%bl\n"
+"        ja      .L_get_length_code_one_time\n"
+
+"        lodsl\n"                         /* eax = *(uint *)in++ */
+"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
+"        addb    $32, %%bl\n"             /* bits += 32 */
+"        shlq    %%cl, %%rax\n"
+"        orq     %%rax, %%rdx\n"          /* hold |= *((uint *)in)++ << bits */
+"        jmp     .L_get_length_code_one_time\n"
+
+".align 32,0x90\n"
+".L_while_test:\n"
+"        cmpq    %%rdi, %%r10\n"
+"        jbe     .L_break_loop\n"
+"        cmpq    %%rsi, %%r9\n"
+"        jbe     .L_break_loop\n"
+
+".L_do_loop:\n"
+"        movq    %%r12, %%r8\n"           /* r8 = lmask */
+"        cmpb    $32, %%bl\n"
+"        ja      .L_get_length_code\n"    /* if (32 < bits) */
+
+"        lodsl\n"                         /* eax = *(uint *)in++ */
+"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
+"        addb    $32, %%bl\n"             /* bits += 32 */
+"        shlq    %%cl, %%rax\n"
+"        orq     %%rax, %%rdx\n"          /* hold |= *((uint *)in)++ << bits */
+
+".L_get_length_code:\n"
+"        andq    %%rdx, %%r8\n"            /* r8 &= hold */
+"        movl    (%%rbp,%%r8,4), %%eax\n"  /* eax = lcode[hold & lmask] */
+
+"        movb    %%ah, %%cl\n"            /* cl = this.bits */
+"        subb    %%ah, %%bl\n"            /* bits -= this.bits */
+"        shrq    %%cl, %%rdx\n"           /* hold >>= this.bits */
+
+"        testb   %%al, %%al\n"
+"        jnz     .L_test_for_length_base\n" /* if (op != 0) 45.7% */
+
+"        movq    %%r12, %%r8\n"            /* r8 = lmask */
+"        shrl    $16, %%eax\n"            /* output this.val char */
+"        stosb\n"
+
+".L_get_length_code_one_time:\n"
+"        andq    %%rdx, %%r8\n"            /* r8 &= hold */
+"        movl    (%%rbp,%%r8,4), %%eax\n" /* eax = lcode[hold & lmask] */
+
+".L_dolen:\n"
+"        movb    %%ah, %%cl\n"            /* cl = this.bits */
+"        subb    %%ah, %%bl\n"            /* bits -= this.bits */
+"        shrq    %%cl, %%rdx\n"           /* hold >>= this.bits */
+
+"        testb   %%al, %%al\n"
+"        jnz     .L_test_for_length_base\n" /* if (op != 0) 45.7% */
+
+"        shrl    $16, %%eax\n"            /* output this.val char */
+"        stosb\n"
+"        jmp     .L_while_test\n"
+
+".align 32,0x90\n"
+".L_test_for_length_base:\n"
+"        movl    %%eax, %%r14d\n"         /* len = this */
+"        shrl    $16, %%r14d\n"           /* len = this.val */
+"        movb    %%al, %%cl\n"
+
+"        testb   $16, %%al\n"
+"        jz      .L_test_for_second_level_length\n" /* if ((op & 16) == 0) 8% */
+"        andb    $15, %%cl\n"             /* op &= 15 */
+"        jz      .L_decode_distance\n"    /* if (!op) */
+
+".L_add_bits_to_len:\n"
+"        subb    %%cl, %%bl\n"
+"        xorl    %%eax, %%eax\n"
+"        incl    %%eax\n"
+"        shll    %%cl, %%eax\n"
+"        decl    %%eax\n"
+"        andl    %%edx, %%eax\n"          /* eax &= hold */
+"        shrq    %%cl, %%rdx\n"
+"        addl    %%eax, %%r14d\n"         /* len += hold & mask[op] */
+
+".L_decode_distance:\n"
+"        movq    %%r13, %%r8\n"           /* r8 = dmask */
+"        cmpb    $32, %%bl\n"
+"        ja      .L_get_distance_code\n"  /* if (32 < bits) */
+
+"        lodsl\n"                         /* eax = *(uint *)in++ */
+"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
+"        addb    $32, %%bl\n"             /* bits += 32 */
+"        shlq    %%cl, %%rax\n"
+"        orq     %%rax, %%rdx\n"          /* hold |= *((uint *)in)++ << bits */
+
+".L_get_distance_code:\n"
+"        andq    %%rdx, %%r8\n"           /* r8 &= hold */
+"        movl    (%%r11,%%r8,4), %%eax\n" /* eax = dcode[hold & dmask] */
+
+".L_dodist:\n"
+"        movl    %%eax, %%r15d\n"         /* dist = this */
+"        shrl    $16, %%r15d\n"           /* dist = this.val */
+"        movb    %%ah, %%cl\n"
+"        subb    %%ah, %%bl\n"            /* bits -= this.bits */
+"        shrq    %%cl, %%rdx\n"           /* hold >>= this.bits */
+"        movb    %%al, %%cl\n"            /* cl = this.op */
+
+"        testb   $16, %%al\n"             /* if ((op & 16) == 0) */
+"        jz      .L_test_for_second_level_dist\n"
+"        andb    $15, %%cl\n"             /* op &= 15 */
+"        jz      .L_check_dist_one\n"
+
+".L_add_bits_to_dist:\n"
+"        subb    %%cl, %%bl\n"
+"        xorl    %%eax, %%eax\n"
+"        incl    %%eax\n"
+"        shll    %%cl, %%eax\n"
+"        decl    %%eax\n"                 /* (1 << op) - 1 */
+"        andl    %%edx, %%eax\n"          /* eax &= hold */
+"        shrq    %%cl, %%rdx\n"
+"        addl    %%eax, %%r15d\n"         /* dist += hold & ((1 << op) - 1) */
+
+".L_check_window:\n"
+"        movq    %%rsi, %%r8\n"           /* save in so from can use it's reg */
+"        movq    %%rdi, %%rax\n"
+"        subq    40(%%rsp), %%rax\n"      /* nbytes = out - beg */
+
+"        cmpl    %%r15d, %%eax\n"
+"        jb      .L_clip_window\n"        /* if (dist > nbytes) 4.2% */
+
+"        movl    %%r14d, %%ecx\n"         /* ecx = len */
+"        movq    %%rdi, %%rsi\n"
+"        subq    %%r15, %%rsi\n"          /* from = out - dist */
+
+"        sarl    %%ecx\n"
+"        jnc     .L_copy_two\n"           /* if len % 2 == 0 */
+
+"        rep     movsw\n"
+"        movb    (%%rsi), %%al\n"
+"        movb    %%al, (%%rdi)\n"
+"        incq    %%rdi\n"
+
+"        movq    %%r8, %%rsi\n"           /* move in back to %rsi, toss from */
+"        jmp     .L_while_test\n"
+
+".L_copy_two:\n"
+"        rep     movsw\n"
+"        movq    %%r8, %%rsi\n"           /* move in back to %rsi, toss from */
+"        jmp     .L_while_test\n"
+
+".align 32,0x90\n"
+".L_check_dist_one:\n"
+"        cmpl    $1, %%r15d\n"            /* if dist 1, is a memset */
+"        jne     .L_check_window\n"
+"        cmpq    %%rdi, 40(%%rsp)\n"      /* if out == beg, outside window */
+"        je      .L_check_window\n"
+
+"        movl    %%r14d, %%ecx\n"         /* ecx = len */
+"        movb    -1(%%rdi), %%al\n"
+"        movb    %%al, %%ah\n"
+
+"        sarl    %%ecx\n"
+"        jnc     .L_set_two\n"
+"        movb    %%al, (%%rdi)\n"
+"        incq    %%rdi\n"
+
+".L_set_two:\n"
+"        rep     stosw\n"
+"        jmp     .L_while_test\n"
+
+".align 32,0x90\n"
+".L_test_for_second_level_length:\n"
+"        testb   $64, %%al\n"
+"        jnz     .L_test_for_end_of_block\n" /* if ((op & 64) != 0) */
+
+"        xorl    %%eax, %%eax\n"
+"        incl    %%eax\n"
+"        shll    %%cl, %%eax\n"
+"        decl    %%eax\n"
+"        andl    %%edx, %%eax\n"         /* eax &= hold */
+"        addl    %%r14d, %%eax\n"        /* eax += len */
+"        movl    (%%rbp,%%rax,4), %%eax\n" /* eax = lcode[val+(hold&mask[op])]*/
+"        jmp     .L_dolen\n"
+
+".align 32,0x90\n"
+".L_test_for_second_level_dist:\n"
+"        testb   $64, %%al\n"
+"        jnz     .L_invalid_distance_code\n" /* if ((op & 64) != 0) */
+
+"        xorl    %%eax, %%eax\n"
+"        incl    %%eax\n"
+"        shll    %%cl, %%eax\n"
+"        decl    %%eax\n"
+"        andl    %%edx, %%eax\n"         /* eax &= hold */
+"        addl    %%r15d, %%eax\n"        /* eax += dist */
+"        movl    (%%r11,%%rax,4), %%eax\n" /* eax = dcode[val+(hold&mask[op])]*/
+"        jmp     .L_dodist\n"
+
+".align 32,0x90\n"
+".L_clip_window:\n"
+"        movl    %%eax, %%ecx\n"         /* ecx = nbytes */
+"        movl    92(%%rsp), %%eax\n"     /* eax = wsize, prepare for dist cmp */
+"        negl    %%ecx\n"                /* nbytes = -nbytes */
+
+"        cmpl    %%r15d, %%eax\n"
+"        jb      .L_invalid_distance_too_far\n" /* if (dist > wsize) */
+
+"        addl    %%r15d, %%ecx\n"         /* nbytes = dist - nbytes */
+"        cmpl    $0, 96(%%rsp)\n"
+"        jne     .L_wrap_around_window\n" /* if (write != 0) */
+
+"        movq    56(%%rsp), %%rsi\n"     /* from  = window */
+"        subl    %%ecx, %%eax\n"         /* eax  -= nbytes */
+"        addq    %%rax, %%rsi\n"         /* from += wsize - nbytes */
+
+"        movl    %%r14d, %%eax\n"        /* eax = len */
+"        cmpl    %%ecx, %%r14d\n"
+"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
+
+"        subl    %%ecx, %%eax\n"         /* eax -= nbytes */
+"        rep     movsb\n"
+"        movq    %%rdi, %%rsi\n"
+"        subq    %%r15, %%rsi\n"         /* from = &out[ -dist ] */
+"        jmp     .L_do_copy\n"
+
+".align 32,0x90\n"
+".L_wrap_around_window:\n"
+"        movl    96(%%rsp), %%eax\n"     /* eax = write */
+"        cmpl    %%eax, %%ecx\n"
+"        jbe     .L_contiguous_in_window\n" /* if (write >= nbytes) */
+
+"        movl    92(%%rsp), %%esi\n"     /* from  = wsize */
+"        addq    56(%%rsp), %%rsi\n"     /* from += window */
+"        addq    %%rax, %%rsi\n"         /* from += write */
+"        subq    %%rcx, %%rsi\n"         /* from -= nbytes */
+"        subl    %%eax, %%ecx\n"         /* nbytes -= write */
+
+"        movl    %%r14d, %%eax\n"        /* eax = len */
+"        cmpl    %%ecx, %%eax\n"
+"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
+
+"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
+"        rep     movsb\n"
+"        movq    56(%%rsp), %%rsi\n"     /* from = window */
+"        movl    96(%%rsp), %%ecx\n"     /* nbytes = write */
+"        cmpl    %%ecx, %%eax\n"
+"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
+
+"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
+"        rep     movsb\n"
+"        movq    %%rdi, %%rsi\n"
+"        subq    %%r15, %%rsi\n"         /* from = out - dist */
+"        jmp     .L_do_copy\n"
+
+".align 32,0x90\n"
+".L_contiguous_in_window:\n"
+"        movq    56(%%rsp), %%rsi\n"     /* rsi = window */
+"        addq    %%rax, %%rsi\n"
+"        subq    %%rcx, %%rsi\n"         /* from += write - nbytes */
+
+"        movl    %%r14d, %%eax\n"        /* eax = len */
+"        cmpl    %%ecx, %%eax\n"
+"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
+
+"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
+"        rep     movsb\n"
+"        movq    %%rdi, %%rsi\n"
+"        subq    %%r15, %%rsi\n"         /* from = out - dist */
+"        jmp     .L_do_copy\n"           /* if (nbytes >= len) */
+
+".align 32,0x90\n"
+".L_do_copy:\n"
+"        movl    %%eax, %%ecx\n"         /* ecx = len */
+"        rep     movsb\n"
+
+"        movq    %%r8, %%rsi\n"          /* move in back to %esi, toss from */
+"        jmp     .L_while_test\n"
+
+".L_test_for_end_of_block:\n"
+"        testb   $32, %%al\n"
+"        jz      .L_invalid_literal_length_code\n"
+"        movl    $1, 116(%%rsp)\n"
+"        jmp     .L_break_loop_with_status\n"
+
+".L_invalid_literal_length_code:\n"
+"        movl    $2, 116(%%rsp)\n"
+"        jmp     .L_break_loop_with_status\n"
+
+".L_invalid_distance_code:\n"
+"        movl    $3, 116(%%rsp)\n"
+"        jmp     .L_break_loop_with_status\n"
+
+".L_invalid_distance_too_far:\n"
+"        movl    $4, 116(%%rsp)\n"
+"        jmp     .L_break_loop_with_status\n"
+
+".L_break_loop:\n"
+"        movl    $0, 116(%%rsp)\n"
+
+".L_break_loop_with_status:\n"
+/* put in, out, bits, and hold back into ar and pop esp */
+"        movq    %%rsi, 16(%%rsp)\n"     /* in */
+"        movq    %%rdi, 32(%%rsp)\n"     /* out */
+"        movl    %%ebx, 88(%%rsp)\n"     /* bits */
+"        movq    %%rdx, 80(%%rsp)\n"     /* hold */
+"        movq    (%%rsp), %%rax\n"       /* restore rbp and rsp */
+"        movq    8(%%rsp), %%rbp\n"
+"        movq    %%rax, %%rsp\n"
+          :
+          : "m" (ar)
+          : "memory", "%rax", "%rbx", "%rcx", "%rdx", "%rsi", "%rdi",
+            "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15"
+    );
+#elif ( defined( __GNUC__ ) || defined( __ICC ) ) && defined( __i386 )
+    __asm__ __volatile__ (
+"        leal    %0, %%eax\n"
+"        movl    %%esp, (%%eax)\n"        /* save esp, ebp */
+"        movl    %%ebp, 4(%%eax)\n"
+"        movl    %%eax, %%esp\n"
+"        movl    8(%%esp), %%esi\n"       /* esi = in */
+"        movl    16(%%esp), %%edi\n"      /* edi = out */
+"        movl    40(%%esp), %%edx\n"      /* edx = hold */
+"        movl    44(%%esp), %%ebx\n"      /* ebx = bits */
+"        movl    32(%%esp), %%ebp\n"      /* ebp = lcode */
+
+"        cld\n"
+"        jmp     .L_do_loop\n"
+
+".align 32,0x90\n"
+".L_while_test:\n"
+"        cmpl    %%edi, 24(%%esp)\n"      /* out < end */
+"        jbe     .L_break_loop\n"
+"        cmpl    %%esi, 12(%%esp)\n"      /* in < last */
+"        jbe     .L_break_loop\n"
+
+".L_do_loop:\n"
+"        cmpb    $15, %%bl\n"
+"        ja      .L_get_length_code\n"    /* if (15 < bits) */
+
+"        xorl    %%eax, %%eax\n"
+"        lodsw\n"                         /* al = *(ushort *)in++ */
+"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
+"        addb    $16, %%bl\n"             /* bits += 16 */
+"        shll    %%cl, %%eax\n"
+"        orl     %%eax, %%edx\n"        /* hold |= *((ushort *)in)++ << bits */
+
+".L_get_length_code:\n"
+"        movl    56(%%esp), %%eax\n"      /* eax = lmask */
+"        andl    %%edx, %%eax\n"          /* eax &= hold */
+"        movl    (%%ebp,%%eax,4), %%eax\n" /* eax = lcode[hold & lmask] */
+
+".L_dolen:\n"
+"        movb    %%ah, %%cl\n"            /* cl = this.bits */
+"        subb    %%ah, %%bl\n"            /* bits -= this.bits */
+"        shrl    %%cl, %%edx\n"           /* hold >>= this.bits */
+
+"        testb   %%al, %%al\n"
+"        jnz     .L_test_for_length_base\n" /* if (op != 0) 45.7% */
+
+"        shrl    $16, %%eax\n"            /* output this.val char */
+"        stosb\n"
+"        jmp     .L_while_test\n"
+
+".align 32,0x90\n"
+".L_test_for_length_base:\n"
+"        movl    %%eax, %%ecx\n"          /* len = this */
+"        shrl    $16, %%ecx\n"            /* len = this.val */
+"        movl    %%ecx, 64(%%esp)\n"      /* save len */
+"        movb    %%al, %%cl\n"
+
+"        testb   $16, %%al\n"
+"        jz      .L_test_for_second_level_length\n" /* if ((op & 16) == 0) 8% */
+"        andb    $15, %%cl\n"             /* op &= 15 */
+"        jz      .L_decode_distance\n"    /* if (!op) */
+"        cmpb    %%cl, %%bl\n"
+"        jae     .L_add_bits_to_len\n"    /* if (op <= bits) */
+
+"        movb    %%cl, %%ch\n"            /* stash op in ch, freeing cl */
+"        xorl    %%eax, %%eax\n"
+"        lodsw\n"                         /* al = *(ushort *)in++ */
+"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
+"        addb    $16, %%bl\n"             /* bits += 16 */
+"        shll    %%cl, %%eax\n"
+"        orl     %%eax, %%edx\n"         /* hold |= *((ushort *)in)++ << bits */
+"        movb    %%ch, %%cl\n"            /* move op back to ecx */
+
+".L_add_bits_to_len:\n"
+"        subb    %%cl, %%bl\n"
+"        xorl    %%eax, %%eax\n"
+"        incl    %%eax\n"
+"        shll    %%cl, %%eax\n"
+"        decl    %%eax\n"
+"        andl    %%edx, %%eax\n"          /* eax &= hold */
+"        shrl    %%cl, %%edx\n"
+"        addl    %%eax, 64(%%esp)\n"      /* len += hold & mask[op] */
+
+".L_decode_distance:\n"
+"        cmpb    $15, %%bl\n"
+"        ja      .L_get_distance_code\n"  /* if (15 < bits) */
+
+"        xorl    %%eax, %%eax\n"
+"        lodsw\n"                         /* al = *(ushort *)in++ */
+"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
+"        addb    $16, %%bl\n"             /* bits += 16 */
+"        shll    %%cl, %%eax\n"
+"        orl     %%eax, %%edx\n"         /* hold |= *((ushort *)in)++ << bits */
+
+".L_get_distance_code:\n"
+"        movl    60(%%esp), %%eax\n"      /* eax = dmask */
+"        movl    36(%%esp), %%ecx\n"      /* ecx = dcode */
+"        andl    %%edx, %%eax\n"          /* eax &= hold */
+"        movl    (%%ecx,%%eax,4), %%eax\n"/* eax = dcode[hold & dmask] */
+
+".L_dodist:\n"
+"        movl    %%eax, %%ebp\n"          /* dist = this */
+"        shrl    $16, %%ebp\n"            /* dist = this.val */
+"        movb    %%ah, %%cl\n"
+"        subb    %%ah, %%bl\n"            /* bits -= this.bits */
+"        shrl    %%cl, %%edx\n"           /* hold >>= this.bits */
+"        movb    %%al, %%cl\n"            /* cl = this.op */
+
+"        testb   $16, %%al\n"             /* if ((op & 16) == 0) */
+"        jz      .L_test_for_second_level_dist\n"
+"        andb    $15, %%cl\n"             /* op &= 15 */
+"        jz      .L_check_dist_one\n"
+"        cmpb    %%cl, %%bl\n"
+"        jae     .L_add_bits_to_dist\n"   /* if (op <= bits) 97.6% */
+
+"        movb    %%cl, %%ch\n"            /* stash op in ch, freeing cl */
+"        xorl    %%eax, %%eax\n"
+"        lodsw\n"                         /* al = *(ushort *)in++ */
+"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
+"        addb    $16, %%bl\n"             /* bits += 16 */
+"        shll    %%cl, %%eax\n"
+"        orl     %%eax, %%edx\n"        /* hold |= *((ushort *)in)++ << bits */
+"        movb    %%ch, %%cl\n"            /* move op back to ecx */
+
+".L_add_bits_to_dist:\n"
+"        subb    %%cl, %%bl\n"
+"        xorl    %%eax, %%eax\n"
+"        incl    %%eax\n"
+"        shll    %%cl, %%eax\n"
+"        decl    %%eax\n"                 /* (1 << op) - 1 */
+"        andl    %%edx, %%eax\n"          /* eax &= hold */
+"        shrl    %%cl, %%edx\n"
+"        addl    %%eax, %%ebp\n"          /* dist += hold & ((1 << op) - 1) */
+
+".L_check_window:\n"
+"        movl    %%esi, 8(%%esp)\n"       /* save in so from can use it's reg */
+"        movl    %%edi, %%eax\n"
+"        subl    20(%%esp), %%eax\n"      /* nbytes = out - beg */
+
+"        cmpl    %%ebp, %%eax\n"
+"        jb      .L_clip_window\n"        /* if (dist > nbytes) 4.2% */
+
+"        movl    64(%%esp), %%ecx\n"      /* ecx = len */
+"        movl    %%edi, %%esi\n"
+"        subl    %%ebp, %%esi\n"          /* from = out - dist */
+
+"        sarl    %%ecx\n"
+"        jnc     .L_copy_two\n"           /* if len % 2 == 0 */
+
+"        rep     movsw\n"
+"        movb    (%%esi), %%al\n"
+"        movb    %%al, (%%edi)\n"
+"        incl    %%edi\n"
+
+"        movl    8(%%esp), %%esi\n"       /* move in back to %esi, toss from */
+"        movl    32(%%esp), %%ebp\n"      /* ebp = lcode */
+"        jmp     .L_while_test\n"
+
+".L_copy_two:\n"
+"        rep     movsw\n"
+"        movl    8(%%esp), %%esi\n"       /* move in back to %esi, toss from */
+"        movl    32(%%esp), %%ebp\n"      /* ebp = lcode */
+"        jmp     .L_while_test\n"
+
+".align 32,0x90\n"
+".L_check_dist_one:\n"
+"        cmpl    $1, %%ebp\n"            /* if dist 1, is a memset */
+"        jne     .L_check_window\n"
+"        cmpl    %%edi, 20(%%esp)\n"
+"        je      .L_check_window\n"      /* out == beg, if outside window */
+
+"        movl    64(%%esp), %%ecx\n"      /* ecx = len */
+"        movb    -1(%%edi), %%al\n"
+"        movb    %%al, %%ah\n"
+
+"        sarl    %%ecx\n"
+"        jnc     .L_set_two\n"
+"        movb    %%al, (%%edi)\n"
+"        incl    %%edi\n"
+
+".L_set_two:\n"
+"        rep     stosw\n"
+"        movl    32(%%esp), %%ebp\n"      /* ebp = lcode */
+"        jmp     .L_while_test\n"
+
+".align 32,0x90\n"
+".L_test_for_second_level_length:\n"
+"        testb   $64, %%al\n"
+"        jnz     .L_test_for_end_of_block\n" /* if ((op & 64) != 0) */
+
+"        xorl    %%eax, %%eax\n"
+"        incl    %%eax\n"
+"        shll    %%cl, %%eax\n"
+"        decl    %%eax\n"
+"        andl    %%edx, %%eax\n"         /* eax &= hold */
+"        addl    64(%%esp), %%eax\n"     /* eax += len */
+"        movl    (%%ebp,%%eax,4), %%eax\n" /* eax = lcode[val+(hold&mask[op])]*/
+"        jmp     .L_dolen\n"
+
+".align 32,0x90\n"
+".L_test_for_second_level_dist:\n"
+"        testb   $64, %%al\n"
+"        jnz     .L_invalid_distance_code\n" /* if ((op & 64) != 0) */
+
+"        xorl    %%eax, %%eax\n"
+"        incl    %%eax\n"
+"        shll    %%cl, %%eax\n"
+"        decl    %%eax\n"
+"        andl    %%edx, %%eax\n"         /* eax &= hold */
+"        addl    %%ebp, %%eax\n"         /* eax += dist */
+"        movl    36(%%esp), %%ecx\n"     /* ecx = dcode */
+"        movl    (%%ecx,%%eax,4), %%eax\n" /* eax = dcode[val+(hold&mask[op])]*/
+"        jmp     .L_dodist\n"
+
+".align 32,0x90\n"
+".L_clip_window:\n"
+"        movl    %%eax, %%ecx\n"
+"        movl    48(%%esp), %%eax\n"     /* eax = wsize */
+"        negl    %%ecx\n"                /* nbytes = -nbytes */
+"        movl    28(%%esp), %%esi\n"     /* from = window */
+
+"        cmpl    %%ebp, %%eax\n"
+"        jb      .L_invalid_distance_too_far\n" /* if (dist > wsize) */
+
+"        addl    %%ebp, %%ecx\n"         /* nbytes = dist - nbytes */
+"        cmpl    $0, 52(%%esp)\n"
+"        jne     .L_wrap_around_window\n" /* if (write != 0) */
+
+"        subl    %%ecx, %%eax\n"
+"        addl    %%eax, %%esi\n"         /* from += wsize - nbytes */
+
+"        movl    64(%%esp), %%eax\n"     /* eax = len */
+"        cmpl    %%ecx, %%eax\n"
+"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
+
+"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
+"        rep     movsb\n"
+"        movl    %%edi, %%esi\n"
+"        subl    %%ebp, %%esi\n"         /* from = out - dist */
+"        jmp     .L_do_copy\n"
+
+".align 32,0x90\n"
+".L_wrap_around_window:\n"
+"        movl    52(%%esp), %%eax\n"     /* eax = write */
+"        cmpl    %%eax, %%ecx\n"
+"        jbe     .L_contiguous_in_window\n" /* if (write >= nbytes) */
+
+"        addl    48(%%esp), %%esi\n"     /* from += wsize */
+"        addl    %%eax, %%esi\n"         /* from += write */
+"        subl    %%ecx, %%esi\n"         /* from -= nbytes */
+"        subl    %%eax, %%ecx\n"         /* nbytes -= write */
+
+"        movl    64(%%esp), %%eax\n"     /* eax = len */
+"        cmpl    %%ecx, %%eax\n"
+"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
+
+"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
+"        rep     movsb\n"
+"        movl    28(%%esp), %%esi\n"     /* from = window */
+"        movl    52(%%esp), %%ecx\n"     /* nbytes = write */
+"        cmpl    %%ecx, %%eax\n"
+"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
+
+"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
+"        rep     movsb\n"
+"        movl    %%edi, %%esi\n"
+"        subl    %%ebp, %%esi\n"         /* from = out - dist */
+"        jmp     .L_do_copy\n"
+
+".align 32,0x90\n"
+".L_contiguous_in_window:\n"
+"        addl    %%eax, %%esi\n"
+"        subl    %%ecx, %%esi\n"         /* from += write - nbytes */
+
+"        movl    64(%%esp), %%eax\n"     /* eax = len */
+"        cmpl    %%ecx, %%eax\n"
+"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
+
+"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
+"        rep     movsb\n"
+"        movl    %%edi, %%esi\n"
+"        subl    %%ebp, %%esi\n"         /* from = out - dist */
+"        jmp     .L_do_copy\n"           /* if (nbytes >= len) */
+
+".align 32,0x90\n"
+".L_do_copy:\n"
+"        movl    %%eax, %%ecx\n"
+"        rep     movsb\n"
+
+"        movl    8(%%esp), %%esi\n"      /* move in back to %esi, toss from */
+"        movl    32(%%esp), %%ebp\n"     /* ebp = lcode */
+"        jmp     .L_while_test\n"
+
+".L_test_for_end_of_block:\n"
+"        testb   $32, %%al\n"
+"        jz      .L_invalid_literal_length_code\n"
+"        movl    $1, 72(%%esp)\n"
+"        jmp     .L_break_loop_with_status\n"
+
+".L_invalid_literal_length_code:\n"
+"        movl    $2, 72(%%esp)\n"
+"        jmp     .L_break_loop_with_status\n"
+
+".L_invalid_distance_code:\n"
+"        movl    $3, 72(%%esp)\n"
+"        jmp     .L_break_loop_with_status\n"
+
+".L_invalid_distance_too_far:\n"
+"        movl    8(%%esp), %%esi\n"
+"        movl    $4, 72(%%esp)\n"
+"        jmp     .L_break_loop_with_status\n"
+
+".L_break_loop:\n"
+"        movl    $0, 72(%%esp)\n"
+
+".L_break_loop_with_status:\n"
+/* put in, out, bits, and hold back into ar and pop esp */
+"        movl    %%esi, 8(%%esp)\n"      /* save in */
+"        movl    %%edi, 16(%%esp)\n"     /* save out */
+"        movl    %%ebx, 44(%%esp)\n"     /* save bits */
+"        movl    %%edx, 40(%%esp)\n"     /* save hold */
+"        movl    4(%%esp), %%ebp\n"      /* restore esp, ebp */
+"        movl    (%%esp), %%esp\n"
+          :
+          : "m" (ar)
+          : "memory", "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi"
+    );
+#elif defined( _MSC_VER ) && ! defined( _M_AMD64 )
+    __asm {
+	lea	eax, ar
+	mov	[eax], esp         /* save esp, ebp */
+	mov	[eax+4], ebp
+	mov	esp, eax
+	mov	esi, [esp+8]       /* esi = in */
+	mov	edi, [esp+16]      /* edi = out */
+	mov	edx, [esp+40]      /* edx = hold */
+	mov	ebx, [esp+44]      /* ebx = bits */
+	mov	ebp, [esp+32]      /* ebp = lcode */
+
+	cld
+	jmp	L_do_loop
+
+ALIGN 4
+L_while_test:
+	cmp	[esp+24], edi
+	jbe	L_break_loop
+	cmp	[esp+12], esi
+	jbe	L_break_loop
+
+L_do_loop:
+	cmp	bl, 15
+	ja	L_get_length_code    /* if (15 < bits) */
+
+	xor	eax, eax
+	lodsw                         /* al = *(ushort *)in++ */
+	mov	cl, bl            /* cl = bits, needs it for shifting */
+	add	bl, 16             /* bits += 16 */
+	shl	eax, cl
+	or	edx, eax        /* hold |= *((ushort *)in)++ << bits */
+
+L_get_length_code:
+	mov	eax, [esp+56]      /* eax = lmask */
+	and	eax, edx          /* eax &= hold */
+	mov	eax, [ebp+eax*4] /* eax = lcode[hold & lmask] */
+
+L_dolen:
+	mov	cl, ah            /* cl = this.bits */
+	sub	bl, ah            /* bits -= this.bits */
+	shr	edx, cl           /* hold >>= this.bits */
+
+	test	al, al
+	jnz	L_test_for_length_base /* if (op != 0) 45.7% */
+
+	shr	eax, 16            /* output this.val char */
+	stosb
+	jmp	L_while_test
+
+ALIGN 4
+L_test_for_length_base:
+	mov	ecx, eax          /* len = this */
+	shr	ecx, 16            /* len = this.val */
+	mov	[esp+64], ecx      /* save len */
+	mov	cl, al
+
+	test	al, 16
+	jz	L_test_for_second_level_length /* if ((op & 16) == 0) 8% */
+	and	cl, 15             /* op &= 15 */
+	jz	L_decode_distance    /* if (!op) */
+	cmp	bl, cl
+	jae	L_add_bits_to_len    /* if (op <= bits) */
+
+	mov	ch, cl            /* stash op in ch, freeing cl */
+	xor	eax, eax
+	lodsw                         /* al = *(ushort *)in++ */
+	mov	cl, bl            /* cl = bits, needs it for shifting */
+	add	bl, 16             /* bits += 16 */
+	shl	eax, cl
+	or	edx, eax         /* hold |= *((ushort *)in)++ << bits */
+	mov	cl, ch            /* move op back to ecx */
+
+L_add_bits_to_len:
+	sub	bl, cl
+	xor	eax, eax
+	inc	eax
+	shl	eax, cl
+	dec	eax
+	and	eax, edx          /* eax &= hold */
+	shr	edx, cl
+	add	[esp+64], eax      /* len += hold & mask[op] */
+
+L_decode_distance:
+	cmp	bl, 15
+	ja	L_get_distance_code  /* if (15 < bits) */
+
+	xor	eax, eax
+	lodsw                         /* al = *(ushort *)in++ */
+	mov	cl, bl            /* cl = bits, needs it for shifting */
+	add	bl, 16             /* bits += 16 */
+	shl	eax, cl
+	or	edx, eax         /* hold |= *((ushort *)in)++ << bits */
+
+L_get_distance_code:
+	mov	eax, [esp+60]      /* eax = dmask */
+	mov	ecx, [esp+36]      /* ecx = dcode */
+	and	eax, edx          /* eax &= hold */
+	mov	eax, [ecx+eax*4]/* eax = dcode[hold & dmask] */
+
+L_dodist:
+	mov	ebp, eax          /* dist = this */
+	shr	ebp, 16            /* dist = this.val */
+	mov	cl, ah
+	sub	bl, ah            /* bits -= this.bits */
+	shr	edx, cl           /* hold >>= this.bits */
+	mov	cl, al            /* cl = this.op */
+
+	test	al, 16             /* if ((op & 16) == 0) */
+	jz	L_test_for_second_level_dist
+	and	cl, 15             /* op &= 15 */
+	jz	L_check_dist_one
+	cmp	bl, cl
+	jae	L_add_bits_to_dist   /* if (op <= bits) 97.6% */
+
+	mov	ch, cl            /* stash op in ch, freeing cl */
+	xor	eax, eax
+	lodsw                         /* al = *(ushort *)in++ */
+	mov	cl, bl            /* cl = bits, needs it for shifting */
+	add	bl, 16             /* bits += 16 */
+	shl	eax, cl
+	or	edx, eax        /* hold |= *((ushort *)in)++ << bits */
+	mov	cl, ch            /* move op back to ecx */
+
+L_add_bits_to_dist:
+	sub	bl, cl
+	xor	eax, eax
+	inc	eax
+	shl	eax, cl
+	dec	eax                 /* (1 << op) - 1 */
+	and	eax, edx          /* eax &= hold */
+	shr	edx, cl
+	add	ebp, eax          /* dist += hold & ((1 << op) - 1) */
+
+L_check_window:
+	mov	[esp+8], esi       /* save in so from can use it's reg */
+	mov	eax, edi
+	sub	eax, [esp+20]      /* nbytes = out - beg */
+
+	cmp	eax, ebp
+	jb	L_clip_window        /* if (dist > nbytes) 4.2% */
+
+	mov	ecx, [esp+64]      /* ecx = len */
+	mov	esi, edi
+	sub	esi, ebp          /* from = out - dist */
+
+	sar	ecx, 1
+	jnc	L_copy_two
+
+	rep     movsw
+	mov	al, [esi]
+	mov	[edi], al
+	inc	edi
+
+	mov	esi, [esp+8]      /* move in back to %esi, toss from */
+	mov	ebp, [esp+32]     /* ebp = lcode */
+	jmp	L_while_test
+
+L_copy_two:
+	rep     movsw
+	mov	esi, [esp+8]      /* move in back to %esi, toss from */
+	mov	ebp, [esp+32]     /* ebp = lcode */
+	jmp	L_while_test
+
+ALIGN 4
+L_check_dist_one:
+	cmp	ebp, 1            /* if dist 1, is a memset */
+	jne	L_check_window
+	cmp	[esp+20], edi
+	je	L_check_window    /* out == beg, if outside window */
+
+	mov	ecx, [esp+64]     /* ecx = len */
+	mov	al, [edi-1]
+	mov	ah, al
+
+	sar	ecx, 1
+	jnc	L_set_two
+	mov	[edi], al         /* memset out with from[-1] */
+	inc	edi
+
+L_set_two:
+	rep     stosw
+	mov	ebp, [esp+32]     /* ebp = lcode */
+	jmp	L_while_test
+
+ALIGN 4
+L_test_for_second_level_length:
+	test	al, 64
+	jnz	L_test_for_end_of_block /* if ((op & 64) != 0) */
+
+	xor	eax, eax
+	inc	eax
+	shl	eax, cl
+	dec	eax
+	and	eax, edx         /* eax &= hold */
+	add	eax, [esp+64]     /* eax += len */
+	mov	eax, [ebp+eax*4] /* eax = lcode[val+(hold&mask[op])]*/
+	jmp	L_dolen
+
+ALIGN 4
+L_test_for_second_level_dist:
+	test	al, 64
+	jnz	L_invalid_distance_code /* if ((op & 64) != 0) */
+
+	xor	eax, eax
+	inc	eax
+	shl	eax, cl
+	dec	eax
+	and	eax, edx         /* eax &= hold */
+	add	eax, ebp         /* eax += dist */
+	mov	ecx, [esp+36]     /* ecx = dcode */
+	mov	eax, [ecx+eax*4] /* eax = dcode[val+(hold&mask[op])]*/
+	jmp	L_dodist
+
+ALIGN 4
+L_clip_window:
+	mov	ecx, eax
+	mov	eax, [esp+48]     /* eax = wsize */
+	neg	ecx                /* nbytes = -nbytes */
+	mov	esi, [esp+28]     /* from = window */
+
+	cmp	eax, ebp
+	jb	L_invalid_distance_too_far /* if (dist > wsize) */
+
+	add	ecx, ebp         /* nbytes = dist - nbytes */
+	cmp	dword ptr [esp+52], 0
+	jne	L_wrap_around_window /* if (write != 0) */
+
+	sub	eax, ecx
+	add	esi, eax         /* from += wsize - nbytes */
+
+	mov	eax, [esp+64]    /* eax = len */
+	cmp	eax, ecx
+	jbe	L_do_copy          /* if (nbytes >= len) */
+
+	sub	eax, ecx         /* len -= nbytes */
+	rep     movsb
+	mov	esi, edi
+	sub	esi, ebp         /* from = out - dist */
+	jmp	L_do_copy
+
+ALIGN 4
+L_wrap_around_window:
+	mov	eax, [esp+52]    /* eax = write */
+	cmp	ecx, eax
+	jbe	L_contiguous_in_window /* if (write >= nbytes) */
+
+	add	esi, [esp+48]    /* from += wsize */
+	add	esi, eax         /* from += write */
+	sub	esi, ecx         /* from -= nbytes */
+	sub	ecx, eax         /* nbytes -= write */
+
+	mov	eax, [esp+64]    /* eax = len */
+	cmp	eax, ecx
+	jbe	L_do_copy          /* if (nbytes >= len) */
+
+	sub	eax, ecx         /* len -= nbytes */
+	rep     movsb
+	mov	esi, [esp+28]     /* from = window */
+	mov	ecx, [esp+52]     /* nbytes = write */
+	cmp	eax, ecx
+	jbe	L_do_copy          /* if (nbytes >= len) */
+
+	sub	eax, ecx         /* len -= nbytes */
+	rep     movsb
+	mov	esi, edi
+	sub	esi, ebp         /* from = out - dist */
+	jmp	L_do_copy
+
+ALIGN 4
+L_contiguous_in_window:
+	add	esi, eax
+	sub	esi, ecx         /* from += write - nbytes */
+
+	mov	eax, [esp+64]    /* eax = len */
+	cmp	eax, ecx
+	jbe	L_do_copy          /* if (nbytes >= len) */
+
+	sub	eax, ecx         /* len -= nbytes */
+	rep     movsb
+	mov	esi, edi
+	sub	esi, ebp         /* from = out - dist */
+	jmp	L_do_copy
+
+ALIGN 4
+L_do_copy:
+	mov	ecx, eax
+	rep     movsb
+
+	mov	esi, [esp+8]      /* move in back to %esi, toss from */
+	mov	ebp, [esp+32]     /* ebp = lcode */
+	jmp	L_while_test
+
+L_test_for_end_of_block:
+	test	al, 32
+	jz	L_invalid_literal_length_code
+	mov	dword ptr [esp+72], 1
+	jmp	L_break_loop_with_status
+
+L_invalid_literal_length_code:
+	mov	dword ptr [esp+72], 2
+	jmp	L_break_loop_with_status
+
+L_invalid_distance_code:
+	mov	dword ptr [esp+72], 3
+	jmp	L_break_loop_with_status
+
+L_invalid_distance_too_far:
+	mov	esi, [esp+4]
+	mov	dword ptr [esp+72], 4
+	jmp	L_break_loop_with_status
+
+L_break_loop:
+	mov	dword ptr [esp+72], 0
+
+L_break_loop_with_status:
+/* put in, out, bits, and hold back into ar and pop esp */
+	mov	[esp+8], esi     /* save in */
+	mov	[esp+16], edi    /* save out */
+	mov	[esp+44], ebx    /* save bits */
+	mov	[esp+40], edx    /* save hold */
+	mov	ebp, [esp+4]     /* restore esp, ebp */
+	mov	esp, [esp]
+    }
+#else
+#error "x86 architecture not defined"
+#endif
+
+    if (ar.status > 1) {
+        if (ar.status == 2)
+            strm->msg = "invalid literal/length code";
+        else if (ar.status == 3)
+            strm->msg = "invalid distance code";
+        else
+            strm->msg = "invalid distance too far back";
+        state->mode = BAD;
+    }
+    else if ( ar.status == 1 ) {
+        state->mode = TYPE;
+    }
+
+    /* return unused bytes (on entry, bits < 8, so in won't go too far back) */
+    ar.len = ar.bits >> 3;
+    ar.in -= ar.len;
+    ar.bits -= ar.len << 3;
+    ar.hold &= (1U << ar.bits) - 1;
+
+    /* update state and return */
+    strm->next_in = ar.in;
+    strm->next_out = ar.out;
+    strm->avail_in = (unsigned)(ar.in < ar.last ?
+                                PAD_AVAIL_IN + (ar.last - ar.in) :
+                                PAD_AVAIL_IN - (ar.in - ar.last));
+    strm->avail_out = (unsigned)(ar.out < ar.end ?
+                                 PAD_AVAIL_OUT + (ar.end - ar.out) :
+                                 PAD_AVAIL_OUT - (ar.out - ar.end));
+    state->hold = ar.hold;
+    state->bits = ar.bits;
+    return;
+}
+
diff --git a/compat/zlib/contrib/iostream/test.cpp b/compat/zlib/contrib/iostream/test.cpp
new file mode 100644
index 0000000..7d265b3
--- /dev/null
+++ b/compat/zlib/contrib/iostream/test.cpp
@@ -0,0 +1,24 @@
+
+#include "zfstream.h"
+
+int main() {
+
+  // Construct a stream object with this filebuffer.  Anything sent
+  // to this stream will go to standard out.
+  gzofstream os( 1, ios::out );
+
+  // This text is getting compressed and sent to stdout.
+  // To prove this, run 'test | zcat'.
+  os << "Hello, Mommy" << endl;
+
+  os << setcompressionlevel( Z_NO_COMPRESSION );
+  os << "hello, hello, hi, ho!" << endl;
+
+  setcompressionlevel( os, Z_DEFAULT_COMPRESSION )
+    << "I'm compressing again" << endl;
+
+  os.close();
+
+  return 0;
+
+}
diff --git a/compat/zlib/contrib/iostream/zfstream.cpp b/compat/zlib/contrib/iostream/zfstream.cpp
new file mode 100644
index 0000000..d0cd85f
--- /dev/null
+++ b/compat/zlib/contrib/iostream/zfstream.cpp
@@ -0,0 +1,329 @@
+
+#include "zfstream.h"
+
+gzfilebuf::gzfilebuf() :
+  file(NULL),
+  mode(0),
+  own_file_descriptor(0)
+{ }
+
+gzfilebuf::~gzfilebuf() {
+
+  sync();
+  if ( own_file_descriptor )
+    close();
+
+}
+
+gzfilebuf *gzfilebuf::open( const char *name,
+                            int io_mode ) {
+
+  if ( is_open() )
+    return NULL;
+
+  char char_mode[10];
+  char *p = char_mode;
+
+  if ( io_mode & ios::in ) {
+    mode = ios::in;
+    *p++ = 'r';
+  } else if ( io_mode & ios::app ) {
+    mode = ios::app;
+    *p++ = 'a';
+  } else {
+    mode = ios::out;
+    *p++ = 'w';
+  }
+
+  if ( io_mode & ios::binary ) {
+    mode |= ios::binary;
+    *p++ = 'b';
+  }
+
+  // Hard code the compression level
+  if ( io_mode & (ios::out|ios::app )) {
+    *p++ = '9';
+  }
+
+  // Put the end-of-string indicator
+  *p = '\0';
+
+  if ( (file = gzopen(name, char_mode)) == NULL )
+    return NULL;
+
+  own_file_descriptor = 1;
+
+  return this;
+
+}
+
+gzfilebuf *gzfilebuf::attach( int file_descriptor,
+                              int io_mode ) {
+
+  if ( is_open() )
+    return NULL;
+
+  char char_mode[10];
+  char *p = char_mode;
+
+  if ( io_mode & ios::in ) {
+    mode = ios::in;
+    *p++ = 'r';
+  } else if ( io_mode & ios::app ) {
+    mode = ios::app;
+    *p++ = 'a';
+  } else {
+    mode = ios::out;
+    *p++ = 'w';
+  }
+
+  if ( io_mode & ios::binary ) {
+    mode |= ios::binary;
+    *p++ = 'b';
+  }
+
+  // Hard code the compression level
+  if ( io_mode & (ios::out|ios::app )) {
+    *p++ = '9';
+  }
+
+  // Put the end-of-string indicator
+  *p = '\0';
+
+  if ( (file = gzdopen(file_descriptor, char_mode)) == NULL )
+    return NULL;
+
+  own_file_descriptor = 0;
+
+  return this;
+
+}
+
+gzfilebuf *gzfilebuf::close() {
+
+  if ( is_open() ) {
+
+    sync();
+    gzclose( file );
+    file = NULL;
+
+  }
+
+  return this;
+
+}
+
+int gzfilebuf::setcompressionlevel( int comp_level ) {
+
+  return gzsetparams(file, comp_level, -2);
+
+}
+
+int gzfilebuf::setcompressionstrategy( int comp_strategy ) {
+
+  return gzsetparams(file, -2, comp_strategy);
+
+}
+
+
+streampos gzfilebuf::seekoff( streamoff off, ios::seek_dir dir, int which ) {
+
+  return streampos(EOF);
+
+}
+
+int gzfilebuf::underflow() {
+
+  // If the file hasn't been opened for reading, error.
+  if ( !is_open() || !(mode & ios::in) )
+    return EOF;
+
+  // if a buffer doesn't exists, allocate one.
+  if ( !base() ) {
+
+    if ( (allocate()) == EOF )
+      return EOF;
+    setp(0,0);
+
+  } else {
+
+    if ( in_avail() )
+      return (unsigned char) *gptr();
+
+    if ( out_waiting() ) {
+      if ( flushbuf() == EOF )
+        return EOF;
+    }
+
+  }
+
+  // Attempt to fill the buffer.
+
+  int result = fillbuf();
+  if ( result == EOF ) {
+    // disable get area
+    setg(0,0,0);
+    return EOF;
+  }
+
+  return (unsigned char) *gptr();
+
+}
+
+int gzfilebuf::overflow( int c ) {
+
+  if ( !is_open() || !(mode & ios::out) )
+    return EOF;
+
+  if ( !base() ) {
+    if ( allocate() == EOF )
+      return EOF;
+    setg(0,0,0);
+  } else {
+    if (in_avail()) {
+        return EOF;
+    }
+    if (out_waiting()) {
+      if (flushbuf() == EOF)
+        return EOF;
+    }
+  }
+
+  int bl = blen();
+  setp( base(), base() + bl);
+
+  if ( c != EOF ) {
+
+    *pptr() = c;
+    pbump(1);
+
+  }
+
+  return 0;
+
+}
+
+int gzfilebuf::sync() {
+
+  if ( !is_open() )
+    return EOF;
+
+  if ( out_waiting() )
+    return flushbuf();
+
+  return 0;
+
+}
+
+int gzfilebuf::flushbuf() {
+
+  int n;
+  char *q;
+
+  q = pbase();
+  n = pptr() - q;
+
+  if ( gzwrite( file, q, n) < n )
+    return EOF;
+
+  setp(0,0);
+
+  return 0;
+
+}
+
+int gzfilebuf::fillbuf() {
+
+  int required;
+  char *p;
+
+  p = base();
+
+  required = blen();
+
+  int t = gzread( file, p, required );
+
+  if ( t <= 0) return EOF;
+
+  setg( base(), base(), base()+t);
+
+  return t;
+
+}
+
+gzfilestream_common::gzfilestream_common() :
+  ios( gzfilestream_common::rdbuf() )
+{ }
+
+gzfilestream_common::~gzfilestream_common()
+{ }
+
+void gzfilestream_common::attach( int fd, int io_mode ) {
+
+  if ( !buffer.attach( fd, io_mode) )
+    clear( ios::failbit | ios::badbit );
+  else
+    clear();
+
+}
+
+void gzfilestream_common::open( const char *name, int io_mode ) {
+
+  if ( !buffer.open( name, io_mode ) )
+    clear( ios::failbit | ios::badbit );
+  else
+    clear();
+
+}
+
+void gzfilestream_common::close() {
+
+  if ( !buffer.close() )
+    clear( ios::failbit | ios::badbit );
+
+}
+
+gzfilebuf *gzfilestream_common::rdbuf()
+{
+  return &buffer;
+}
+
+gzifstream::gzifstream() :
+  ios( gzfilestream_common::rdbuf() )
+{
+  clear( ios::badbit );
+}
+
+gzifstream::gzifstream( const char *name, int io_mode ) :
+  ios( gzfilestream_common::rdbuf() )
+{
+  gzfilestream_common::open( name, io_mode );
+}
+
+gzifstream::gzifstream( int fd, int io_mode ) :
+  ios( gzfilestream_common::rdbuf() )
+{
+  gzfilestream_common::attach( fd, io_mode );
+}
+
+gzifstream::~gzifstream() { }
+
+gzofstream::gzofstream() :
+  ios( gzfilestream_common::rdbuf() )
+{
+  clear( ios::badbit );
+}
+
+gzofstream::gzofstream( const char *name, int io_mode ) :
+  ios( gzfilestream_common::rdbuf() )
+{
+  gzfilestream_common::open( name, io_mode );
+}
+
+gzofstream::gzofstream( int fd, int io_mode ) :
+  ios( gzfilestream_common::rdbuf() )
+{
+  gzfilestream_common::attach( fd, io_mode );
+}
+
+gzofstream::~gzofstream() { }
diff --git a/compat/zlib/contrib/iostream/zfstream.h b/compat/zlib/contrib/iostream/zfstream.h
new file mode 100644
index 0000000..ed79098
--- /dev/null
+++ b/compat/zlib/contrib/iostream/zfstream.h
@@ -0,0 +1,128 @@
+
+#ifndef zfstream_h
+#define zfstream_h
+
+#include <fstream.h>
+#include "zlib.h"
+
+class gzfilebuf : public streambuf {
+
+public:
+
+  gzfilebuf( );
+  virtual ~gzfilebuf();
+
+  gzfilebuf *open( const char *name, int io_mode );
+  gzfilebuf *attach( int file_descriptor, int io_mode );
+  gzfilebuf *close();
+
+  int setcompressionlevel( int comp_level );
+  int setcompressionstrategy( int comp_strategy );
+
+  inline int is_open() const { return (file !=NULL); }
+
+  virtual streampos seekoff( streamoff, ios::seek_dir, int );
+
+  virtual int sync();
+
+protected:
+
+  virtual int underflow();
+  virtual int overflow( int = EOF );
+
+private:
+
+  gzFile file;
+  short mode;
+  short own_file_descriptor;
+
+  int flushbuf();
+  int fillbuf();
+
+};
+
+class gzfilestream_common : virtual public ios {
+
+  friend class gzifstream;
+  friend class gzofstream;
+  friend gzofstream &setcompressionlevel( gzofstream &, int );
+  friend gzofstream &setcompressionstrategy( gzofstream &, int );
+
+public:
+  virtual ~gzfilestream_common();
+
+  void attach( int fd, int io_mode );
+  void open( const char *name, int io_mode );
+  void close();
+
+protected:
+  gzfilestream_common();
+
+private:
+  gzfilebuf *rdbuf();
+
+  gzfilebuf buffer;
+
+};
+
+class gzifstream : public gzfilestream_common, public istream {
+
+public:
+
+  gzifstream();
+  gzifstream( const char *name, int io_mode = ios::in );
+  gzifstream( int fd, int io_mode = ios::in );
+
+  virtual ~gzifstream();
+
+};
+
+class gzofstream : public gzfilestream_common, public ostream {
+
+public:
+
+  gzofstream();
+  gzofstream( const char *name, int io_mode = ios::out );
+  gzofstream( int fd, int io_mode = ios::out );
+
+  virtual ~gzofstream();
+
+};
+
+template<class T> class gzomanip {
+  friend gzofstream &operator<<(gzofstream &, const gzomanip<T> &);
+public:
+  gzomanip(gzofstream &(*f)(gzofstream &, T), T v) : func(f), val(v) { }
+private:
+  gzofstream &(*func)(gzofstream &, T);
+  T val;
+};
+
+template<class T> gzofstream &operator<<(gzofstream &s, const gzomanip<T> &m)
+{
+  return (*m.func)(s, m.val);
+}
+
+inline gzofstream &setcompressionlevel( gzofstream &s, int l )
+{
+  (s.rdbuf())->setcompressionlevel(l);
+  return s;
+}
+
+inline gzofstream &setcompressionstrategy( gzofstream &s, int l )
+{
+  (s.rdbuf())->setcompressionstrategy(l);
+  return s;
+}
+
+inline gzomanip<int> setcompressionlevel(int l)
+{
+  return gzomanip<int>(&setcompressionlevel,l);
+}
+
+inline gzomanip<int> setcompressionstrategy(int l)
+{
+  return gzomanip<int>(&setcompressionstrategy,l);
+}
+
+#endif
diff --git a/compat/zlib/contrib/iostream2/zstream.h b/compat/zlib/contrib/iostream2/zstream.h
new file mode 100644
index 0000000..43d2332
--- /dev/null
+++ b/compat/zlib/contrib/iostream2/zstream.h
@@ -0,0 +1,307 @@
+/*
+ *
+ * Copyright (c) 1997
+ * Christian Michelsen Research AS
+ * Advanced Computing
+ * Fantoftvegen 38, 5036 BERGEN, Norway
+ * http://www.cmr.no
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation.  Christian Michelsen Research AS makes no
+ * representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied warranty.
+ *
+ */
+
+#ifndef ZSTREAM__H
+#define ZSTREAM__H
+
+/*
+ * zstream.h - C++ interface to the 'zlib' general purpose compression library
+ * $Id: zstream.h 1.1 1997-06-25 12:00:56+02 tyge Exp tyge $
+ */
+
+#include <strstream.h>
+#include <string.h>
+#include <stdio.h>
+#include "zlib.h"
+
+#if defined(_WIN32)
+#   include <fcntl.h>
+#   include <io.h>
+#   define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
+#else
+#   define SET_BINARY_MODE(file)
+#endif
+
+class zstringlen {
+public:
+    zstringlen(class izstream&);
+    zstringlen(class ozstream&, const char*);
+    size_t value() const { return val.word; }
+private:
+    struct Val { unsigned char byte; size_t word; } val;
+};
+
+//  ----------------------------- izstream -----------------------------
+
+class izstream
+{
+    public:
+        izstream() : m_fp(0) {}
+        izstream(FILE* fp) : m_fp(0) { open(fp); }
+        izstream(const char* name) : m_fp(0) { open(name); }
+        ~izstream() { close(); }
+
+        /* Opens a gzip (.gz) file for reading.
+         * open() can be used to read a file which is not in gzip format;
+         * in this case read() will directly read from the file without
+         * decompression. errno can be checked to distinguish two error
+         * cases (if errno is zero, the zlib error is Z_MEM_ERROR).
+         */
+        void open(const char* name) {
+            if (m_fp) close();
+            m_fp = ::gzopen(name, "rb");
+        }
+
+        void open(FILE* fp) {
+            SET_BINARY_MODE(fp);
+            if (m_fp) close();
+            m_fp = ::gzdopen(fileno(fp), "rb");
+        }
+
+        /* Flushes all pending input if necessary, closes the compressed file
+         * and deallocates all the (de)compression state. The return value is
+         * the zlib error number (see function error() below).
+         */
+        int close() {
+            int r = ::gzclose(m_fp);
+            m_fp = 0; return r;
+        }
+
+        /* Binary read the given number of bytes from the compressed file.
+         */
+        int read(void* buf, size_t len) {
+            return ::gzread(m_fp, buf, len);
+        }
+
+        /* Returns the error message for the last error which occurred on the
+         * given compressed file. errnum is set to zlib error number. If an
+         * error occurred in the file system and not in the compression library,
+         * errnum is set to Z_ERRNO and the application may consult errno
+         * to get the exact error code.
+         */
+        const char* error(int* errnum) {
+            return ::gzerror(m_fp, errnum);
+        }
+
+        gzFile fp() { return m_fp; }
+
+    private:
+        gzFile m_fp;
+};
+
+/*
+ * Binary read the given (array of) object(s) from the compressed file.
+ * If the input file was not in gzip format, read() copies the objects number
+ * of bytes into the buffer.
+ * returns the number of uncompressed bytes actually read
+ * (0 for end of file, -1 for error).
+ */
+template <class T, class Items>
+inline int read(izstream& zs, T* x, Items items) {
+    return ::gzread(zs.fp(), x, items*sizeof(T));
+}
+
+/*
+ * Binary input with the '>' operator.
+ */
+template <class T>
+inline izstream& operator>(izstream& zs, T& x) {
+    ::gzread(zs.fp(), &x, sizeof(T));
+    return zs;
+}
+
+
+inline zstringlen::zstringlen(izstream& zs) {
+    zs > val.byte;
+    if (val.byte == 255) zs > val.word;
+    else val.word = val.byte;
+}
+
+/*
+ * Read length of string + the string with the '>' operator.
+ */
+inline izstream& operator>(izstream& zs, char* x) {
+    zstringlen len(zs);
+    ::gzread(zs.fp(), x, len.value());
+    x[len.value()] = '\0';
+    return zs;
+}
+
+inline char* read_string(izstream& zs) {
+    zstringlen len(zs);
+    char* x = new char[len.value()+1];
+    ::gzread(zs.fp(), x, len.value());
+    x[len.value()] = '\0';
+    return x;
+}
+
+// ----------------------------- ozstream -----------------------------
+
+class ozstream
+{
+    public:
+        ozstream() : m_fp(0), m_os(0) {
+        }
+        ozstream(FILE* fp, int level = Z_DEFAULT_COMPRESSION)
+            : m_fp(0), m_os(0) {
+            open(fp, level);
+        }
+        ozstream(const char* name, int level = Z_DEFAULT_COMPRESSION)
+            : m_fp(0), m_os(0) {
+            open(name, level);
+        }
+        ~ozstream() {
+            close();
+        }
+
+        /* Opens a gzip (.gz) file for writing.
+         * The compression level parameter should be in 0..9
+         * errno can be checked to distinguish two error cases
+         * (if errno is zero, the zlib error is Z_MEM_ERROR).
+         */
+        void open(const char* name, int level = Z_DEFAULT_COMPRESSION) {
+            char mode[4] = "wb\0";
+            if (level != Z_DEFAULT_COMPRESSION) mode[2] = '0'+level;
+            if (m_fp) close();
+            m_fp = ::gzopen(name, mode);
+        }
+
+        /* open from a FILE pointer.
+         */
+        void open(FILE* fp, int level = Z_DEFAULT_COMPRESSION) {
+            SET_BINARY_MODE(fp);
+            char mode[4] = "wb\0";
+            if (level != Z_DEFAULT_COMPRESSION) mode[2] = '0'+level;
+            if (m_fp) close();
+            m_fp = ::gzdopen(fileno(fp), mode);
+        }
+
+        /* Flushes all pending output if necessary, closes the compressed file
+         * and deallocates all the (de)compression state. The return value is
+         * the zlib error number (see function error() below).
+         */
+        int close() {
+            if (m_os) {
+                ::gzwrite(m_fp, m_os->str(), m_os->pcount());
+                delete[] m_os->str(); delete m_os; m_os = 0;
+            }
+            int r = ::gzclose(m_fp); m_fp = 0; return r;
+        }
+
+        /* Binary write the given number of bytes into the compressed file.
+         */
+        int write(const void* buf, size_t len) {
+            return ::gzwrite(m_fp, (voidp) buf, len);
+        }
+
+        /* Flushes all pending output into the compressed file. The parameter
+         * _flush is as in the deflate() function. The return value is the zlib
+         * error number (see function gzerror below). flush() returns Z_OK if
+         * the flush_ parameter is Z_FINISH and all output could be flushed.
+         * flush() should be called only when strictly necessary because it can
+         * degrade compression.
+         */
+        int flush(int _flush) {
+            os_flush();
+            return ::gzflush(m_fp, _flush);
+        }
+
+        /* Returns the error message for the last error which occurred on the
+         * given compressed file. errnum is set to zlib error number. If an
+         * error occurred in the file system and not in the compression library,
+         * errnum is set to Z_ERRNO and the application may consult errno
+         * to get the exact error code.
+         */
+        const char* error(int* errnum) {
+            return ::gzerror(m_fp, errnum);
+        }
+
+        gzFile fp() { return m_fp; }
+
+        ostream& os() {
+            if (m_os == 0) m_os = new ostrstream;
+            return *m_os;
+        }
+
+        void os_flush() {
+            if (m_os && m_os->pcount()>0) {
+                ostrstream* oss = new ostrstream;
+                oss->fill(m_os->fill());
+                oss->flags(m_os->flags());
+                oss->precision(m_os->precision());
+                oss->width(m_os->width());
+                ::gzwrite(m_fp, m_os->str(), m_os->pcount());
+                delete[] m_os->str(); delete m_os; m_os = oss;
+            }
+        }
+
+    private:
+        gzFile m_fp;
+        ostrstream* m_os;
+};
+
+/*
+ * Binary write the given (array of) object(s) into the compressed file.
+ * returns the number of uncompressed bytes actually written
+ * (0 in case of error).
+ */
+template <class T, class Items>
+inline int write(ozstream& zs, const T* x, Items items) {
+    return ::gzwrite(zs.fp(), (voidp) x, items*sizeof(T));
+}
+
+/*
+ * Binary output with the '<' operator.
+ */
+template <class T>
+inline ozstream& operator<(ozstream& zs, const T& x) {
+    ::gzwrite(zs.fp(), (voidp) &x, sizeof(T));
+    return zs;
+}
+
+inline zstringlen::zstringlen(ozstream& zs, const char* x) {
+    val.byte = 255;  val.word = ::strlen(x);
+    if (val.word < 255) zs < (val.byte = val.word);
+    else zs < val;
+}
+
+/*
+ * Write length of string + the string with the '<' operator.
+ */
+inline ozstream& operator<(ozstream& zs, const char* x) {
+    zstringlen len(zs, x);
+    ::gzwrite(zs.fp(), (voidp) x, len.value());
+    return zs;
+}
+
+#ifdef _MSC_VER
+inline ozstream& operator<(ozstream& zs, char* const& x) {
+    return zs < (const char*) x;
+}
+#endif
+
+/*
+ * Ascii write with the << operator;
+ */
+template <class T>
+inline ostream& operator<<(ozstream& zs, const T& x) {
+    zs.os_flush();
+    return zs.os() << x;
+}
+
+#endif
diff --git a/compat/zlib/contrib/iostream2/zstream_test.cpp b/compat/zlib/contrib/iostream2/zstream_test.cpp
new file mode 100644
index 0000000..6273f62
--- /dev/null
+++ b/compat/zlib/contrib/iostream2/zstream_test.cpp
@@ -0,0 +1,25 @@
+#include "zstream.h"
+#include <math.h>
+#include <stdlib.h>
+#include <iomanip.h>
+
+void main() {
+    char h[256] = "Hello";
+    char* g = "Goodbye";
+    ozstream out("temp.gz");
+    out < "This works well" < h < g;
+    out.close();
+
+    izstream in("temp.gz"); // read it back
+    char *x = read_string(in), *y = new char[256], z[256];
+    in > y > z;
+    in.close();
+    cout << x << endl << y << endl << z << endl;
+
+    out.open("temp.gz"); // try ascii output; zcat temp.gz to see the results
+    out << setw(50) << setfill('#') << setprecision(20) << x << endl << y << endl << z << endl;
+    out << z << endl << y << endl << x << endl;
+    out << 1.1234567890123456789 << endl;
+
+    delete[] x; delete[] y;
+}
diff --git a/compat/zlib/contrib/iostream3/README b/compat/zlib/contrib/iostream3/README
new file mode 100644
index 0000000..f7b319a
--- /dev/null
+++ b/compat/zlib/contrib/iostream3/README
@@ -0,0 +1,35 @@
+These classes provide a C++ stream interface to the zlib library. It allows you
+to do things like:
+
+  gzofstream outf("blah.gz");
+  outf << "These go into the gzip file " << 123 << endl;
+
+It does this by deriving a specialized stream buffer for gzipped files, which is
+the way Stroustrup would have done it. :->
+
+The gzifstream and gzofstream classes were originally written by Kevin Ruland
+and made available in the zlib contrib/iostream directory. The older version still
+compiles under gcc 2.xx, but not under gcc 3.xx, which sparked the development of
+this version.
+
+The new classes are as standard-compliant as possible, closely following the
+approach of the standard library's fstream classes. It compiles under gcc versions
+3.2 and 3.3, but not under gcc 2.xx. This is mainly due to changes in the standard
+library naming scheme. The new version of gzifstream/gzofstream/gzfilebuf differs
+from the previous one in the following respects:
+- added showmanyc
+- added setbuf, with support for unbuffered output via setbuf(0,0)
+- a few bug fixes of stream behavior
+- gzipped output file opened with default compression level instead of maximum level
+- setcompressionlevel()/strategy() members replaced by single setcompression()
+
+The code is provided "as is", with the permission to use, copy, modify, distribute
+and sell it for any purpose without fee.
+
+Ludwig Schwardt
+<schwardt@sun.ac.za>
+
+DSP Lab
+Electrical & Electronic Engineering Department
+University of Stellenbosch
+South Africa
diff --git a/compat/zlib/contrib/iostream3/TODO b/compat/zlib/contrib/iostream3/TODO
new file mode 100644
index 0000000..7032f97
--- /dev/null
+++ b/compat/zlib/contrib/iostream3/TODO
@@ -0,0 +1,17 @@
+Possible upgrades to gzfilebuf:
+
+- The ability to do putback (e.g. putbackfail)
+
+- The ability to seek (zlib supports this, but could be slow/tricky)
+
+- Simultaneous read/write access (does it make sense?)
+
+- Support for ios_base::ate open mode
+
+- Locale support?
+
+- Check public interface to see which calls give problems
+  (due to dependence on library internals)
+
+- Override operator<<(ostream&, gzfilebuf*) to allow direct copying
+  of stream buffer to stream ( i.e. os << is.rdbuf(); )
diff --git a/compat/zlib/contrib/iostream3/test.cc b/compat/zlib/contrib/iostream3/test.cc
new file mode 100644
index 0000000..9423533
--- /dev/null
+++ b/compat/zlib/contrib/iostream3/test.cc
@@ -0,0 +1,50 @@
+/*
+ * Test program for gzifstream and gzofstream
+ *
+ * by Ludwig Schwardt <schwardt@sun.ac.za>
+ * original version by Kevin Ruland <kevin@rodin.wustl.edu>
+ */
+
+#include "zfstream.h"
+#include <iostream>      // for cout
+
+int main() {
+
+  gzofstream outf;
+  gzifstream inf;
+  char buf[80];
+
+  outf.open("test1.txt.gz");
+  outf << "The quick brown fox sidestepped the lazy canine\n"
+       << 1.3 << "\nPlan " << 9 << std::endl;
+  outf.close();
+  std::cout << "Wrote the following message to 'test1.txt.gz' (check with zcat or zless):\n"
+            << "The quick brown fox sidestepped the lazy canine\n"
+            << 1.3 << "\nPlan " << 9 << std::endl;
+
+  std::cout << "\nReading 'test1.txt.gz' (buffered) produces:\n";
+  inf.open("test1.txt.gz");
+  while (inf.getline(buf,80,'\n')) {
+    std::cout << buf << "\t(" << inf.rdbuf()->in_avail() << " chars left in buffer)\n";
+  }
+  inf.close();
+
+  outf.rdbuf()->pubsetbuf(0,0);
+  outf.open("test2.txt.gz");
+  outf << setcompression(Z_NO_COMPRESSION)
+       << "The quick brown fox sidestepped the lazy canine\n"
+       << 1.3 << "\nPlan " << 9 << std::endl;
+  outf.close();
+  std::cout << "\nWrote the same message to 'test2.txt.gz' in uncompressed form";
+
+  std::cout << "\nReading 'test2.txt.gz' (unbuffered) produces:\n";
+  inf.rdbuf()->pubsetbuf(0,0);
+  inf.open("test2.txt.gz");
+  while (inf.getline(buf,80,'\n')) {
+    std::cout << buf << "\t(" << inf.rdbuf()->in_avail() << " chars left in buffer)\n";
+  }
+  inf.close();
+
+  return 0;
+
+}
diff --git a/compat/zlib/contrib/iostream3/zfstream.cc b/compat/zlib/contrib/iostream3/zfstream.cc
new file mode 100644
index 0000000..94eb933
--- /dev/null
+++ b/compat/zlib/contrib/iostream3/zfstream.cc
@@ -0,0 +1,479 @@
+/*
+ * A C++ I/O streams interface to the zlib gz* functions
+ *
+ * by Ludwig Schwardt <schwardt@sun.ac.za>
+ * original version by Kevin Ruland <kevin@rodin.wustl.edu>
+ *
+ * This version is standard-compliant and compatible with gcc 3.x.
+ */
+
+#include "zfstream.h"
+#include <cstring>          // for strcpy, strcat, strlen (mode strings)
+#include <cstdio>           // for BUFSIZ
+
+// Internal buffer sizes (default and "unbuffered" versions)
+#define BIGBUFSIZE BUFSIZ
+#define SMALLBUFSIZE 1
+
+/*****************************************************************************/
+
+// Default constructor
+gzfilebuf::gzfilebuf()
+: file(NULL), io_mode(std::ios_base::openmode(0)), own_fd(false),
+  buffer(NULL), buffer_size(BIGBUFSIZE), own_buffer(true)
+{
+  // No buffers to start with
+  this->disable_buffer();
+}
+
+// Destructor
+gzfilebuf::~gzfilebuf()
+{
+  // Sync output buffer and close only if responsible for file
+  // (i.e. attached streams should be left open at this stage)
+  this->sync();
+  if (own_fd)
+    this->close();
+  // Make sure internal buffer is deallocated
+  this->disable_buffer();
+}
+
+// Set compression level and strategy
+int
+gzfilebuf::setcompression(int comp_level,
+                          int comp_strategy)
+{
+  return gzsetparams(file, comp_level, comp_strategy);
+}
+
+// Open gzipped file
+gzfilebuf*
+gzfilebuf::open(const char *name,
+                std::ios_base::openmode mode)
+{
+  // Fail if file already open
+  if (this->is_open())
+    return NULL;
+  // Don't support simultaneous read/write access (yet)
+  if ((mode & std::ios_base::in) && (mode & std::ios_base::out))
+    return NULL;
+
+  // Build mode string for gzopen and check it [27.8.1.3.2]
+  char char_mode[6] = "\0\0\0\0\0";
+  if (!this->open_mode(mode, char_mode))
+    return NULL;
+
+  // Attempt to open file
+  if ((file = gzopen(name, char_mode)) == NULL)
+    return NULL;
+
+  // On success, allocate internal buffer and set flags
+  this->enable_buffer();
+  io_mode = mode;
+  own_fd = true;
+  return this;
+}
+
+// Attach to gzipped file
+gzfilebuf*
+gzfilebuf::attach(int fd,
+                  std::ios_base::openmode mode)
+{
+  // Fail if file already open
+  if (this->is_open())
+    return NULL;
+  // Don't support simultaneous read/write access (yet)
+  if ((mode & std::ios_base::in) && (mode & std::ios_base::out))
+    return NULL;
+
+  // Build mode string for gzdopen and check it [27.8.1.3.2]
+  char char_mode[6] = "\0\0\0\0\0";
+  if (!this->open_mode(mode, char_mode))
+    return NULL;
+
+  // Attempt to attach to file
+  if ((file = gzdopen(fd, char_mode)) == NULL)
+    return NULL;
+
+  // On success, allocate internal buffer and set flags
+  this->enable_buffer();
+  io_mode = mode;
+  own_fd = false;
+  return this;
+}
+
+// Close gzipped file
+gzfilebuf*
+gzfilebuf::close()
+{
+  // Fail immediately if no file is open
+  if (!this->is_open())
+    return NULL;
+  // Assume success
+  gzfilebuf* retval = this;
+  // Attempt to sync and close gzipped file
+  if (this->sync() == -1)
+    retval = NULL;
+  if (gzclose(file) < 0)
+    retval = NULL;
+  // File is now gone anyway (postcondition [27.8.1.3.8])
+  file = NULL;
+  own_fd = false;
+  // Destroy internal buffer if it exists
+  this->disable_buffer();
+  return retval;
+}
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+// Convert int open mode to mode string
+bool
+gzfilebuf::open_mode(std::ios_base::openmode mode,
+                     char* c_mode) const
+{
+  bool testb = mode & std::ios_base::binary;
+  bool testi = mode & std::ios_base::in;
+  bool testo = mode & std::ios_base::out;
+  bool testt = mode & std::ios_base::trunc;
+  bool testa = mode & std::ios_base::app;
+
+  // Check for valid flag combinations - see [27.8.1.3.2] (Table 92)
+  // Original zfstream hardcoded the compression level to maximum here...
+  // Double the time for less than 1% size improvement seems
+  // excessive though - keeping it at the default level
+  // To change back, just append "9" to the next three mode strings
+  if (!testi && testo && !testt && !testa)
+    strcpy(c_mode, "w");
+  if (!testi && testo && !testt && testa)
+    strcpy(c_mode, "a");
+  if (!testi && testo && testt && !testa)
+    strcpy(c_mode, "w");
+  if (testi && !testo && !testt && !testa)
+    strcpy(c_mode, "r");
+  // No read/write mode yet
+//  if (testi && testo && !testt && !testa)
+//    strcpy(c_mode, "r+");
+//  if (testi && testo && testt && !testa)
+//    strcpy(c_mode, "w+");
+
+  // Mode string should be empty for invalid combination of flags
+  if (strlen(c_mode) == 0)
+    return false;
+  if (testb)
+    strcat(c_mode, "b");
+  return true;
+}
+
+// Determine number of characters in internal get buffer
+std::streamsize
+gzfilebuf::showmanyc()
+{
+  // Calls to underflow will fail if file not opened for reading
+  if (!this->is_open() || !(io_mode & std::ios_base::in))
+    return -1;
+  // Make sure get area is in use
+  if (this->gptr() && (this->gptr() < this->egptr()))
+    return std::streamsize(this->egptr() - this->gptr());
+  else
+    return 0;
+}
+
+// Fill get area from gzipped file
+gzfilebuf::int_type
+gzfilebuf::underflow()
+{
+  // If something is left in the get area by chance, return it
+  // (this shouldn't normally happen, as underflow is only supposed
+  // to be called when gptr >= egptr, but it serves as error check)
+  if (this->gptr() && (this->gptr() < this->egptr()))
+    return traits_type::to_int_type(*(this->gptr()));
+
+  // If the file hasn't been opened for reading, produce error
+  if (!this->is_open() || !(io_mode & std::ios_base::in))
+    return traits_type::eof();
+
+  // Attempt to fill internal buffer from gzipped file
+  // (buffer must be guaranteed to exist...)
+  int bytes_read = gzread(file, buffer, buffer_size);
+  // Indicates error or EOF
+  if (bytes_read <= 0)
+  {
+    // Reset get area
+    this->setg(buffer, buffer, buffer);
+    return traits_type::eof();
+  }
+  // Make all bytes read from file available as get area
+  this->setg(buffer, buffer, buffer + bytes_read);
+
+  // Return next character in get area
+  return traits_type::to_int_type(*(this->gptr()));
+}
+
+// Write put area to gzipped file
+gzfilebuf::int_type
+gzfilebuf::overflow(int_type c)
+{
+  // Determine whether put area is in use
+  if (this->pbase())
+  {
+    // Double-check pointer range
+    if (this->pptr() > this->epptr() || this->pptr() < this->pbase())
+      return traits_type::eof();
+    // Add extra character to buffer if not EOF
+    if (!traits_type::eq_int_type(c, traits_type::eof()))
+    {
+      *(this->pptr()) = traits_type::to_char_type(c);
+      this->pbump(1);
+    }
+    // Number of characters to write to file
+    int bytes_to_write = this->pptr() - this->pbase();
+    // Overflow doesn't fail if nothing is to be written
+    if (bytes_to_write > 0)
+    {
+      // If the file hasn't been opened for writing, produce error
+      if (!this->is_open() || !(io_mode & std::ios_base::out))
+        return traits_type::eof();
+      // If gzipped file won't accept all bytes written to it, fail
+      if (gzwrite(file, this->pbase(), bytes_to_write) != bytes_to_write)
+        return traits_type::eof();
+      // Reset next pointer to point to pbase on success
+      this->pbump(-bytes_to_write);
+    }
+  }
+  // Write extra character to file if not EOF
+  else if (!traits_type::eq_int_type(c, traits_type::eof()))
+  {
+    // If the file hasn't been opened for writing, produce error
+    if (!this->is_open() || !(io_mode & std::ios_base::out))
+      return traits_type::eof();
+    // Impromptu char buffer (allows "unbuffered" output)
+    char_type last_char = traits_type::to_char_type(c);
+    // If gzipped file won't accept this character, fail
+    if (gzwrite(file, &last_char, 1) != 1)
+      return traits_type::eof();
+  }
+
+  // If you got here, you have succeeded (even if c was EOF)
+  // The return value should therefore be non-EOF
+  if (traits_type::eq_int_type(c, traits_type::eof()))
+    return traits_type::not_eof(c);
+  else
+    return c;
+}
+
+// Assign new buffer
+std::streambuf*
+gzfilebuf::setbuf(char_type* p,
+                  std::streamsize n)
+{
+  // First make sure stuff is sync'ed, for safety
+  if (this->sync() == -1)
+    return NULL;
+  // If buffering is turned off on purpose via setbuf(0,0), still allocate one...
+  // "Unbuffered" only really refers to put [27.8.1.4.10], while get needs at
+  // least a buffer of size 1 (very inefficient though, therefore make it bigger?)
+  // This follows from [27.5.2.4.3]/12 (gptr needs to point at something, it seems)
+  if (!p || !n)
+  {
+    // Replace existing buffer (if any) with small internal buffer
+    this->disable_buffer();
+    buffer = NULL;
+    buffer_size = 0;
+    own_buffer = true;
+    this->enable_buffer();
+  }
+  else
+  {
+    // Replace existing buffer (if any) with external buffer
+    this->disable_buffer();
+    buffer = p;
+    buffer_size = n;
+    own_buffer = false;
+    this->enable_buffer();
+  }
+  return this;
+}
+
+// Write put area to gzipped file (i.e. ensures that put area is empty)
+int
+gzfilebuf::sync()
+{
+  return traits_type::eq_int_type(this->overflow(), traits_type::eof()) ? -1 : 0;
+}
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+// Allocate internal buffer
+void
+gzfilebuf::enable_buffer()
+{
+  // If internal buffer required, allocate one
+  if (own_buffer && !buffer)
+  {
+    // Check for buffered vs. "unbuffered"
+    if (buffer_size > 0)
+    {
+      // Allocate internal buffer
+      buffer = new char_type[buffer_size];
+      // Get area starts empty and will be expanded by underflow as need arises
+      this->setg(buffer, buffer, buffer);
+      // Setup entire internal buffer as put area.
+      // The one-past-end pointer actually points to the last element of the buffer,
+      // so that overflow(c) can safely add the extra character c to the sequence.
+      // These pointers remain in place for the duration of the buffer
+      this->setp(buffer, buffer + buffer_size - 1);
+    }
+    else
+    {
+      // Even in "unbuffered" case, (small?) get buffer is still required
+      buffer_size = SMALLBUFSIZE;
+      buffer = new char_type[buffer_size];
+      this->setg(buffer, buffer, buffer);
+      // "Unbuffered" means no put buffer
+      this->setp(0, 0);
+    }
+  }
+  else
+  {
+    // If buffer already allocated, reset buffer pointers just to make sure no
+    // stale chars are lying around
+    this->setg(buffer, buffer, buffer);
+    this->setp(buffer, buffer + buffer_size - 1);
+  }
+}
+
+// Destroy internal buffer
+void
+gzfilebuf::disable_buffer()
+{
+  // If internal buffer exists, deallocate it
+  if (own_buffer && buffer)
+  {
+    // Preserve unbuffered status by zeroing size
+    if (!this->pbase())
+      buffer_size = 0;
+    delete[] buffer;
+    buffer = NULL;
+    this->setg(0, 0, 0);
+    this->setp(0, 0);
+  }
+  else
+  {
+    // Reset buffer pointers to initial state if external buffer exists
+    this->setg(buffer, buffer, buffer);
+    if (buffer)
+      this->setp(buffer, buffer + buffer_size - 1);
+    else
+      this->setp(0, 0);
+  }
+}
+
+/*****************************************************************************/
+
+// Default constructor initializes stream buffer
+gzifstream::gzifstream()
+: std::istream(NULL), sb()
+{ this->init(&sb); }
+
+// Initialize stream buffer and open file
+gzifstream::gzifstream(const char* name,
+                       std::ios_base::openmode mode)
+: std::istream(NULL), sb()
+{
+  this->init(&sb);
+  this->open(name, mode);
+}
+
+// Initialize stream buffer and attach to file
+gzifstream::gzifstream(int fd,
+                       std::ios_base::openmode mode)
+: std::istream(NULL), sb()
+{
+  this->init(&sb);
+  this->attach(fd, mode);
+}
+
+// Open file and go into fail() state if unsuccessful
+void
+gzifstream::open(const char* name,
+                 std::ios_base::openmode mode)
+{
+  if (!sb.open(name, mode | std::ios_base::in))
+    this->setstate(std::ios_base::failbit);
+  else
+    this->clear();
+}
+
+// Attach to file and go into fail() state if unsuccessful
+void
+gzifstream::attach(int fd,
+                   std::ios_base::openmode mode)
+{
+  if (!sb.attach(fd, mode | std::ios_base::in))
+    this->setstate(std::ios_base::failbit);
+  else
+    this->clear();
+}
+
+// Close file
+void
+gzifstream::close()
+{
+  if (!sb.close())
+    this->setstate(std::ios_base::failbit);
+}
+
+/*****************************************************************************/
+
+// Default constructor initializes stream buffer
+gzofstream::gzofstream()
+: std::ostream(NULL), sb()
+{ this->init(&sb); }
+
+// Initialize stream buffer and open file
+gzofstream::gzofstream(const char* name,
+                       std::ios_base::openmode mode)
+: std::ostream(NULL), sb()
+{
+  this->init(&sb);
+  this->open(name, mode);
+}
+
+// Initialize stream buffer and attach to file
+gzofstream::gzofstream(int fd,
+                       std::ios_base::openmode mode)
+: std::ostream(NULL), sb()
+{
+  this->init(&sb);
+  this->attach(fd, mode);
+}
+
+// Open file and go into fail() state if unsuccessful
+void
+gzofstream::open(const char* name,
+                 std::ios_base::openmode mode)
+{
+  if (!sb.open(name, mode | std::ios_base::out))
+    this->setstate(std::ios_base::failbit);
+  else
+    this->clear();
+}
+
+// Attach to file and go into fail() state if unsuccessful
+void
+gzofstream::attach(int fd,
+                   std::ios_base::openmode mode)
+{
+  if (!sb.attach(fd, mode | std::ios_base::out))
+    this->setstate(std::ios_base::failbit);
+  else
+    this->clear();
+}
+
+// Close file
+void
+gzofstream::close()
+{
+  if (!sb.close())
+    this->setstate(std::ios_base::failbit);
+}
diff --git a/compat/zlib/contrib/iostream3/zfstream.h b/compat/zlib/contrib/iostream3/zfstream.h
new file mode 100644
index 0000000..3dabc0f
--- /dev/null
+++ b/compat/zlib/contrib/iostream3/zfstream.h
@@ -0,0 +1,466 @@
+/*
+ * A C++ I/O streams interface to the zlib gz* functions
+ *
+ * by Ludwig Schwardt <schwardt@sun.ac.za>
+ * original version by Kevin Ruland <kevin@rodin.wustl.edu>
+ *
+ * This version is standard-compliant and compatible with gcc 3.x.
+ */
+
+#ifndef ZFSTREAM_H
+#define ZFSTREAM_H
+
+#include <istream>  // not iostream, since we don't need cin/cout
+#include <ostream>
+#include "zlib.h"
+
+/*****************************************************************************/
+
+/**
+ *  @brief  Gzipped file stream buffer class.
+ *
+ *  This class implements basic_filebuf for gzipped files. It doesn't yet support
+ *  seeking (allowed by zlib but slow/limited), putback and read/write access
+ *  (tricky). Otherwise, it attempts to be a drop-in replacement for the standard
+ *  file streambuf.
+*/
+class gzfilebuf : public std::streambuf
+{
+public:
+  //  Default constructor.
+  gzfilebuf();
+
+  //  Destructor.
+  virtual
+  ~gzfilebuf();
+
+  /**
+   *  @brief  Set compression level and strategy on the fly.
+   *  @param  comp_level  Compression level (see zlib.h for allowed values)
+   *  @param  comp_strategy  Compression strategy (see zlib.h for allowed values)
+   *  @return  Z_OK on success, Z_STREAM_ERROR otherwise.
+   *
+   *  Unfortunately, these parameters cannot be modified separately, as the
+   *  previous zfstream version assumed. Since the strategy is seldom changed,
+   *  it can default and setcompression(level) then becomes like the old
+   *  setcompressionlevel(level).
+  */
+  int
+  setcompression(int comp_level,
+                 int comp_strategy = Z_DEFAULT_STRATEGY);
+
+  /**
+   *  @brief  Check if file is open.
+   *  @return  True if file is open.
+  */
+  bool
+  is_open() const { return (file != NULL); }
+
+  /**
+   *  @brief  Open gzipped file.
+   *  @param  name  File name.
+   *  @param  mode  Open mode flags.
+   *  @return  @c this on success, NULL on failure.
+  */
+  gzfilebuf*
+  open(const char* name,
+       std::ios_base::openmode mode);
+
+  /**
+   *  @brief  Attach to already open gzipped file.
+   *  @param  fd  File descriptor.
+   *  @param  mode  Open mode flags.
+   *  @return  @c this on success, NULL on failure.
+  */
+  gzfilebuf*
+  attach(int fd,
+         std::ios_base::openmode mode);
+
+  /**
+   *  @brief  Close gzipped file.
+   *  @return  @c this on success, NULL on failure.
+  */
+  gzfilebuf*
+  close();
+
+protected:
+  /**
+   *  @brief  Convert ios open mode int to mode string used by zlib.
+   *  @return  True if valid mode flag combination.
+  */
+  bool
+  open_mode(std::ios_base::openmode mode,
+            char* c_mode) const;
+
+  /**
+   *  @brief  Number of characters available in stream buffer.
+   *  @return  Number of characters.
+   *
+   *  This indicates number of characters in get area of stream buffer.
+   *  These characters can be read without accessing the gzipped file.
+  */
+  virtual std::streamsize
+  showmanyc();
+
+  /**
+   *  @brief  Fill get area from gzipped file.
+   *  @return  First character in get area on success, EOF on error.
+   *
+   *  This actually reads characters from gzipped file to stream
+   *  buffer. Always buffered.
+  */
+  virtual int_type
+  underflow();
+
+  /**
+   *  @brief  Write put area to gzipped file.
+   *  @param  c  Extra character to add to buffer contents.
+   *  @return  Non-EOF on success, EOF on error.
+   *
+   *  This actually writes characters in stream buffer to
+   *  gzipped file. With unbuffered output this is done one
+   *  character at a time.
+  */
+  virtual int_type
+  overflow(int_type c = traits_type::eof());
+
+  /**
+   *  @brief  Installs external stream buffer.
+   *  @param  p  Pointer to char buffer.
+   *  @param  n  Size of external buffer.
+   *  @return  @c this on success, NULL on failure.
+   *
+   *  Call setbuf(0,0) to enable unbuffered output.
+  */
+  virtual std::streambuf*
+  setbuf(char_type* p,
+         std::streamsize n);
+
+  /**
+   *  @brief  Flush stream buffer to file.
+   *  @return  0 on success, -1 on error.
+   *
+   *  This calls underflow(EOF) to do the job.
+  */
+  virtual int
+  sync();
+
+//
+// Some future enhancements
+//
+//  virtual int_type uflow();
+//  virtual int_type pbackfail(int_type c = traits_type::eof());
+//  virtual pos_type
+//  seekoff(off_type off,
+//          std::ios_base::seekdir way,
+//          std::ios_base::openmode mode = std::ios_base::in|std::ios_base::out);
+//  virtual pos_type
+//  seekpos(pos_type sp,
+//          std::ios_base::openmode mode = std::ios_base::in|std::ios_base::out);
+
+private:
+  /**
+   *  @brief  Allocate internal buffer.
+   *
+   *  This function is safe to call multiple times. It will ensure
+   *  that a proper internal buffer exists if it is required. If the
+   *  buffer already exists or is external, the buffer pointers will be
+   *  reset to their original state.
+  */
+  void
+  enable_buffer();
+
+  /**
+   *  @brief  Destroy internal buffer.
+   *
+   *  This function is safe to call multiple times. It will ensure
+   *  that the internal buffer is deallocated if it exists. In any
+   *  case, it will also reset the buffer pointers.
+  */
+  void
+  disable_buffer();
+
+  /**
+   *  Underlying file pointer.
+  */
+  gzFile file;
+
+  /**
+   *  Mode in which file was opened.
+  */
+  std::ios_base::openmode io_mode;
+
+  /**
+   *  @brief  True if this object owns file descriptor.
+   *
+   *  This makes the class responsible for closing the file
+   *  upon destruction.
+  */
+  bool own_fd;
+
+  /**
+   *  @brief  Stream buffer.
+   *
+   *  For simplicity this remains allocated on the free store for the
+   *  entire life span of the gzfilebuf object, unless replaced by setbuf.
+  */
+  char_type* buffer;
+
+  /**
+   *  @brief  Stream buffer size.
+   *
+   *  Defaults to system default buffer size (typically 8192 bytes).
+   *  Modified by setbuf.
+  */
+  std::streamsize buffer_size;
+
+  /**
+   *  @brief  True if this object owns stream buffer.
+   *
+   *  This makes the class responsible for deleting the buffer
+   *  upon destruction.
+  */
+  bool own_buffer;
+};
+
+/*****************************************************************************/
+
+/**
+ *  @brief  Gzipped file input stream class.
+ *
+ *  This class implements ifstream for gzipped files. Seeking and putback
+ *  is not supported yet.
+*/
+class gzifstream : public std::istream
+{
+public:
+  //  Default constructor
+  gzifstream();
+
+  /**
+   *  @brief  Construct stream on gzipped file to be opened.
+   *  @param  name  File name.
+   *  @param  mode  Open mode flags (forced to contain ios::in).
+  */
+  explicit
+  gzifstream(const char* name,
+             std::ios_base::openmode mode = std::ios_base::in);
+
+  /**
+   *  @brief  Construct stream on already open gzipped file.
+   *  @param  fd    File descriptor.
+   *  @param  mode  Open mode flags (forced to contain ios::in).
+  */
+  explicit
+  gzifstream(int fd,
+             std::ios_base::openmode mode = std::ios_base::in);
+
+  /**
+   *  Obtain underlying stream buffer.
+  */
+  gzfilebuf*
+  rdbuf() const
+  { return const_cast<gzfilebuf*>(&sb); }
+
+  /**
+   *  @brief  Check if file is open.
+   *  @return  True if file is open.
+  */
+  bool
+  is_open() { return sb.is_open(); }
+
+  /**
+   *  @brief  Open gzipped file.
+   *  @param  name  File name.
+   *  @param  mode  Open mode flags (forced to contain ios::in).
+   *
+   *  Stream will be in state good() if file opens successfully;
+   *  otherwise in state fail(). This differs from the behavior of
+   *  ifstream, which never sets the state to good() and therefore
+   *  won't allow you to reuse the stream for a second file unless
+   *  you manually clear() the state. The choice is a matter of
+   *  convenience.
+  */
+  void
+  open(const char* name,
+       std::ios_base::openmode mode = std::ios_base::in);
+
+  /**
+   *  @brief  Attach to already open gzipped file.
+   *  @param  fd  File descriptor.
+   *  @param  mode  Open mode flags (forced to contain ios::in).
+   *
+   *  Stream will be in state good() if attach succeeded; otherwise
+   *  in state fail().
+  */
+  void
+  attach(int fd,
+         std::ios_base::openmode mode = std::ios_base::in);
+
+  /**
+   *  @brief  Close gzipped file.
+   *
+   *  Stream will be in state fail() if close failed.
+  */
+  void
+  close();
+
+private:
+  /**
+   *  Underlying stream buffer.
+  */
+  gzfilebuf sb;
+};
+
+/*****************************************************************************/
+
+/**
+ *  @brief  Gzipped file output stream class.
+ *
+ *  This class implements ofstream for gzipped files. Seeking and putback
+ *  is not supported yet.
+*/
+class gzofstream : public std::ostream
+{
+public:
+  //  Default constructor
+  gzofstream();
+
+  /**
+   *  @brief  Construct stream on gzipped file to be opened.
+   *  @param  name  File name.
+   *  @param  mode  Open mode flags (forced to contain ios::out).
+  */
+  explicit
+  gzofstream(const char* name,
+             std::ios_base::openmode mode = std::ios_base::out);
+
+  /**
+   *  @brief  Construct stream on already open gzipped file.
+   *  @param  fd    File descriptor.
+   *  @param  mode  Open mode flags (forced to contain ios::out).
+  */
+  explicit
+  gzofstream(int fd,
+             std::ios_base::openmode mode = std::ios_base::out);
+
+  /**
+   *  Obtain underlying stream buffer.
+  */
+  gzfilebuf*
+  rdbuf() const
+  { return const_cast<gzfilebuf*>(&sb); }
+
+  /**
+   *  @brief  Check if file is open.
+   *  @return  True if file is open.
+  */
+  bool
+  is_open() { return sb.is_open(); }
+
+  /**
+   *  @brief  Open gzipped file.
+   *  @param  name  File name.
+   *  @param  mode  Open mode flags (forced to contain ios::out).
+   *
+   *  Stream will be in state good() if file opens successfully;
+   *  otherwise in state fail(). This differs from the behavior of
+   *  ofstream, which never sets the state to good() and therefore
+   *  won't allow you to reuse the stream for a second file unless
+   *  you manually clear() the state. The choice is a matter of
+   *  convenience.
+  */
+  void
+  open(const char* name,
+       std::ios_base::openmode mode = std::ios_base::out);
+
+  /**
+   *  @brief  Attach to already open gzipped file.
+   *  @param  fd  File descriptor.
+   *  @param  mode  Open mode flags (forced to contain ios::out).
+   *
+   *  Stream will be in state good() if attach succeeded; otherwise
+   *  in state fail().
+  */
+  void
+  attach(int fd,
+         std::ios_base::openmode mode = std::ios_base::out);
+
+  /**
+   *  @brief  Close gzipped file.
+   *
+   *  Stream will be in state fail() if close failed.
+  */
+  void
+  close();
+
+private:
+  /**
+   *  Underlying stream buffer.
+  */
+  gzfilebuf sb;
+};
+
+/*****************************************************************************/
+
+/**
+ *  @brief  Gzipped file output stream manipulator class.
+ *
+ *  This class defines a two-argument manipulator for gzofstream. It is used
+ *  as base for the setcompression(int,int) manipulator.
+*/
+template<typename T1, typename T2>
+  class gzomanip2
+  {
+  public:
+    // Allows inserter to peek at internals
+    template <typename Ta, typename Tb>
+      friend gzofstream&
+      operator<<(gzofstream&,
+                 const gzomanip2<Ta,Tb>&);
+
+    // Constructor
+    gzomanip2(gzofstream& (*f)(gzofstream&, T1, T2),
+              T1 v1,
+              T2 v2);
+  private:
+    // Underlying manipulator function
+    gzofstream&
+    (*func)(gzofstream&, T1, T2);
+
+    // Arguments for manipulator function
+    T1 val1;
+    T2 val2;
+  };
+
+/*****************************************************************************/
+
+// Manipulator function thunks through to stream buffer
+inline gzofstream&
+setcompression(gzofstream &gzs, int l, int s = Z_DEFAULT_STRATEGY)
+{
+  (gzs.rdbuf())->setcompression(l, s);
+  return gzs;
+}
+
+// Manipulator constructor stores arguments
+template<typename T1, typename T2>
+  inline
+  gzomanip2<T1,T2>::gzomanip2(gzofstream &(*f)(gzofstream &, T1, T2),
+                              T1 v1,
+                              T2 v2)
+  : func(f), val1(v1), val2(v2)
+  { }
+
+// Inserter applies underlying manipulator function to stream
+template<typename T1, typename T2>
+  inline gzofstream&
+  operator<<(gzofstream& s, const gzomanip2<T1,T2>& m)
+  { return (*m.func)(s, m.val1, m.val2); }
+
+// Insert this onto stream to simplify setting of compression level
+inline gzomanip2<int,int>
+setcompression(int l, int s = Z_DEFAULT_STRATEGY)
+{ return gzomanip2<int,int>(&setcompression, l, s); }
+
+#endif // ZFSTREAM_H
diff --git a/compat/zlib/contrib/minizip/Makefile b/compat/zlib/contrib/minizip/Makefile
new file mode 100644
index 0000000..3d927ec
--- /dev/null
+++ b/compat/zlib/contrib/minizip/Makefile
@@ -0,0 +1,29 @@
+CC?=cc
+CFLAGS := $(CFLAGS) -O -I../..
+
+UNZ_OBJS = miniunz.o unzip.o ioapi.o ../../libz.a
+ZIP_OBJS = minizip.o zip.o   ioapi.o ../../libz.a
+
+.c.o:
+	$(CC) -c $(CFLAGS) $*.c
+
+all: miniunz minizip
+
+miniunz:  $(UNZ_OBJS)
+	$(CC) $(CFLAGS) -o $@ $(UNZ_OBJS)
+
+minizip:  $(ZIP_OBJS)
+	$(CC) $(CFLAGS) -o $@ $(ZIP_OBJS)
+
+test:	miniunz minizip
+	@rm -f test.*
+	@echo hello hello hello > test.txt
+	./minizip test test.txt
+	./miniunz -l test.zip
+	@mv test.txt test.old
+	./miniunz test.zip
+	@cmp test.txt test.old
+	@rm -f test.*
+
+clean:
+	/bin/rm -f *.o *~ minizip miniunz test.*
diff --git a/compat/zlib/contrib/minizip/Makefile.am b/compat/zlib/contrib/minizip/Makefile.am
new file mode 100644
index 0000000..d343011
--- /dev/null
+++ b/compat/zlib/contrib/minizip/Makefile.am
@@ -0,0 +1,45 @@
+lib_LTLIBRARIES = libminizip.la
+
+if COND_DEMOS
+bin_PROGRAMS = miniunzip minizip
+endif
+
+zlib_top_srcdir = $(top_srcdir)/../..
+zlib_top_builddir = $(top_builddir)/../..
+
+AM_CPPFLAGS = -I$(zlib_top_srcdir)
+AM_LDFLAGS = -L$(zlib_top_builddir)
+
+if WIN32
+iowin32_src = iowin32.c
+iowin32_h = iowin32.h
+endif
+
+libminizip_la_SOURCES = \
+	ioapi.c \
+	mztools.c \
+	unzip.c \
+	zip.c \
+	${iowin32_src}
+
+libminizip_la_LDFLAGS = $(AM_LDFLAGS) -version-info 1:0:0 -lz
+
+minizip_includedir = $(includedir)/minizip
+minizip_include_HEADERS = \
+	crypt.h \
+	ioapi.h \
+	mztools.h \
+	unzip.h \
+	zip.h \
+	${iowin32_h}
+
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = minizip.pc
+
+EXTRA_PROGRAMS = miniunzip minizip
+
+miniunzip_SOURCES = miniunz.c
+miniunzip_LDADD = libminizip.la
+
+minizip_SOURCES = minizip.c
+minizip_LDADD = libminizip.la -lz
diff --git a/compat/zlib/contrib/minizip/MiniZip64_Changes.txt b/compat/zlib/contrib/minizip/MiniZip64_Changes.txt
new file mode 100644
index 0000000..3759468
--- /dev/null
+++ b/compat/zlib/contrib/minizip/MiniZip64_Changes.txt
@@ -0,0 +1,6 @@
+
+MiniZip 1.1 was derived from MiniZip at version 1.01f
+
+Change in 1.0 (Okt 2009)
+ - **TODO - Add history**
+
diff --git a/compat/zlib/contrib/minizip/MiniZip64_info.txt b/compat/zlib/contrib/minizip/MiniZip64_info.txt
new file mode 100644
index 0000000..57d7152
--- /dev/null
+++ b/compat/zlib/contrib/minizip/MiniZip64_info.txt
@@ -0,0 +1,74 @@
+MiniZip - Copyright (c) 1998-2010 - by Gilles Vollant - version 1.1 64 bits from Mathias Svensson
+
+Introduction
+---------------------
+MiniZip 1.1 is built from MiniZip 1.0 by Gilles Vollant ( http://www.winimage.com/zLibDll/minizip.html )
+
+When adding ZIP64 support into minizip it would result into risk of breaking compatibility with minizip 1.0.
+All possible work was done for compatibility.
+
+
+Background
+---------------------
+When adding ZIP64 support Mathias Svensson found that Even Rouault have added ZIP64 
+support for unzip.c into minizip for a open source project called gdal ( http://www.gdal.org/ )
+
+That was used as a starting point. And after that ZIP64 support was added to zip.c
+some refactoring and code cleanup was also done.
+
+
+Changed from MiniZip 1.0 to MiniZip 1.1
+---------------------------------------
+* Added ZIP64 support for unzip ( by Even Rouault )
+* Added ZIP64 support for zip ( by Mathias Svensson )
+* Reverted some changed that Even Rouault did.
+* Bunch of patches received from Gulles Vollant that he received for MiniZip from various users.
+* Added unzip patch for BZIP Compression method (patch create by Daniel Borca)
+* Added BZIP Compress method for zip
+* Did some refactoring and code cleanup
+
+
+Credits
+
+ Gilles Vollant    - Original MiniZip author
+ Even Rouault      - ZIP64 unzip Support
+ Daniel Borca      - BZip Compression method support in unzip
+ Mathias Svensson  - ZIP64 zip support
+ Mathias Svensson  - BZip Compression method support in zip
+
+ Resources
+
+ ZipLayout   http://result42.com/projects/ZipFileLayout
+             Command line tool for Windows that shows the layout and information of the headers in a zip archive.
+             Used when debugging and validating the creation of zip files using MiniZip64
+
+
+ ZIP App Note  http://www.pkware.com/documents/casestudies/APPNOTE.TXT
+               Zip File specification
+
+
+Notes.
+ * To be able to use BZip compression method in zip64.c or unzip64.c the BZIP2 lib is needed and HAVE_BZIP2 need to be defined.
+
+License
+----------------------------------------------------------
+   Condition of use and distribution are the same than zlib :
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+----------------------------------------------------------
+
diff --git a/compat/zlib/contrib/minizip/configure.ac b/compat/zlib/contrib/minizip/configure.ac
new file mode 100644
index 0000000..15ec917
--- /dev/null
+++ b/compat/zlib/contrib/minizip/configure.ac
@@ -0,0 +1,32 @@
+#                                               -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_INIT([minizip], [1.3.1], [bugzilla.redhat.com])
+AC_CONFIG_SRCDIR([minizip.c])
+AM_INIT_AUTOMAKE([foreign])
+LT_INIT
+
+AC_MSG_CHECKING([whether to build example programs])
+AC_ARG_ENABLE([demos], AC_HELP_STRING([--enable-demos], [build example programs]))
+AM_CONDITIONAL([COND_DEMOS], [test "$enable_demos" = yes])
+if test "$enable_demos" = yes
+then
+	AC_MSG_RESULT([yes])
+else
+	AC_MSG_RESULT([no])
+fi
+
+case "${host}" in
+	*-mingw* | mingw*)
+		WIN32="yes"
+		;;
+	*)
+		;;
+esac
+AM_CONDITIONAL([WIN32], [test "${WIN32}" = "yes"])
+
+
+AC_SUBST([HAVE_UNISTD_H], [0])
+AC_CHECK_HEADER([unistd.h], [HAVE_UNISTD_H=1], [])
+AC_CONFIG_FILES([Makefile minizip.pc])
+AC_OUTPUT
diff --git a/compat/zlib/contrib/minizip/crypt.h b/compat/zlib/contrib/minizip/crypt.h
new file mode 100644
index 0000000..8bde464
--- /dev/null
+++ b/compat/zlib/contrib/minizip/crypt.h
@@ -0,0 +1,128 @@
+/* crypt.h -- base code for crypt/uncrypt ZIPfile
+
+
+   Version 1.01e, February 12th, 2005
+
+   Copyright (C) 1998-2005 Gilles Vollant
+
+   This code is a modified version of crypting code in Infozip distribution
+
+   The encryption/decryption parts of this source code (as opposed to the
+   non-echoing password parts) were originally written in Europe.  The
+   whole source package can be freely distributed, including from the USA.
+   (Prior to January 2000, re-export from the US was a violation of US law.)
+
+   This encryption code is a direct transcription of the algorithm from
+   Roger Schlafly, described by Phil Katz in the file appnote.txt.  This
+   file (appnote.txt) is distributed with the PKZIP program (even in the
+   version without encryption capabilities).
+
+   If you don't need crypting in your application, just define symbols
+   NOCRYPT and NOUNCRYPT.
+
+   This code support the "Traditional PKWARE Encryption".
+
+   The new AES encryption added on Zip format by Winzip (see the page
+   http://www.winzip.com/aes_info.htm ) and PKWare PKZip 5.x Strong
+   Encryption is not supported.
+*/
+
+#define CRC32(c, b) ((*(pcrc_32_tab+(((int)(c) ^ (b)) & 0xff))) ^ ((c) >> 8))
+
+/***********************************************************************
+ * Return the next byte in the pseudo-random sequence
+ */
+static int decrypt_byte(unsigned long* pkeys, const z_crc_t* pcrc_32_tab) {
+    unsigned temp;  /* POTENTIAL BUG:  temp*(temp^1) may overflow in an
+                     * unpredictable manner on 16-bit systems; not a problem
+                     * with any known compiler so far, though */
+
+    (void)pcrc_32_tab;
+    temp = ((unsigned)(*(pkeys+2)) & 0xffff) | 2;
+    return (int)(((temp * (temp ^ 1)) >> 8) & 0xff);
+}
+
+/***********************************************************************
+ * Update the encryption keys with the next byte of plain text
+ */
+static int update_keys(unsigned long* pkeys, const z_crc_t* pcrc_32_tab, int c) {
+    (*(pkeys+0)) = CRC32((*(pkeys+0)), c);
+    (*(pkeys+1)) += (*(pkeys+0)) & 0xff;
+    (*(pkeys+1)) = (*(pkeys+1)) * 134775813L + 1;
+    {
+      int keyshift = (int)((*(pkeys+1)) >> 24);
+      (*(pkeys+2)) = CRC32((*(pkeys+2)), keyshift);
+    }
+    return c;
+}
+
+
+/***********************************************************************
+ * Initialize the encryption keys and the random header according to
+ * the given password.
+ */
+static void init_keys(const char* passwd, unsigned long* pkeys, const z_crc_t* pcrc_32_tab) {
+    *(pkeys+0) = 305419896L;
+    *(pkeys+1) = 591751049L;
+    *(pkeys+2) = 878082192L;
+    while (*passwd != '\0') {
+        update_keys(pkeys,pcrc_32_tab,(int)*passwd);
+        passwd++;
+    }
+}
+
+#define zdecode(pkeys,pcrc_32_tab,c) \
+    (update_keys(pkeys,pcrc_32_tab,c ^= decrypt_byte(pkeys,pcrc_32_tab)))
+
+#define zencode(pkeys,pcrc_32_tab,c,t) \
+    (t=decrypt_byte(pkeys,pcrc_32_tab), update_keys(pkeys,pcrc_32_tab,c), (Byte)t^(c))
+
+#ifdef INCLUDECRYPTINGCODE_IFCRYPTALLOWED
+
+#define RAND_HEAD_LEN  12
+   /* "last resort" source for second part of crypt seed pattern */
+#  ifndef ZCR_SEED2
+#    define ZCR_SEED2 3141592654UL      /* use PI as default pattern */
+#  endif
+
+static unsigned crypthead(const char* passwd,       /* password string */
+                          unsigned char* buf,       /* where to write header */
+                          int bufSize,
+                          unsigned long* pkeys,
+                          const z_crc_t* pcrc_32_tab,
+                          unsigned long crcForCrypting) {
+    unsigned n;                  /* index in random header */
+    int t;                       /* temporary */
+    int c;                       /* random byte */
+    unsigned char header[RAND_HEAD_LEN-2]; /* random header */
+    static unsigned calls = 0;   /* ensure different random header each time */
+
+    if (bufSize<RAND_HEAD_LEN)
+      return 0;
+
+    /* First generate RAND_HEAD_LEN-2 random bytes. We encrypt the
+     * output of rand() to get less predictability, since rand() is
+     * often poorly implemented.
+     */
+    if (++calls == 1)
+    {
+        srand((unsigned)(time(NULL) ^ ZCR_SEED2));
+    }
+    init_keys(passwd, pkeys, pcrc_32_tab);
+    for (n = 0; n < RAND_HEAD_LEN-2; n++)
+    {
+        c = (rand() >> 7) & 0xff;
+        header[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, c, t);
+    }
+    /* Encrypt random header (last two bytes is high word of crc) */
+    init_keys(passwd, pkeys, pcrc_32_tab);
+    for (n = 0; n < RAND_HEAD_LEN-2; n++)
+    {
+        buf[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, header[n], t);
+    }
+    buf[n++] = (unsigned char)zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 16) & 0xff, t);
+    buf[n++] = (unsigned char)zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 24) & 0xff, t);
+    return n;
+}
+
+#endif
diff --git a/compat/zlib/contrib/minizip/ioapi.c b/compat/zlib/contrib/minizip/ioapi.c
new file mode 100644
index 0000000..2b899c0
--- /dev/null
+++ b/compat/zlib/contrib/minizip/ioapi.c
@@ -0,0 +1,235 @@
+/* ioapi.h -- IO base function header for compress/uncompress .zip
+   part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications for Zip64 support
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+         For more info read MiniZip_info.txt
+
+*/
+
+#if defined(_WIN32) && (!(defined(_CRT_SECURE_NO_WARNINGS)))
+        #define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#if defined(_WIN32)
+#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
+#define FTELLO_FUNC(stream) _ftelli64(stream)
+#define FSEEKO_FUNC(stream, offset, origin) _fseeki64(stream, offset, origin)
+#elif defined(__APPLE__) || defined(IOAPI_NO_64) || defined(__HAIKU__) || defined(MINIZIP_FOPEN_NO_64)
+// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
+#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
+#define FTELLO_FUNC(stream) ftello(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin)
+#else
+#define FOPEN_FUNC(filename, mode) fopen64(filename, mode)
+#define FTELLO_FUNC(stream) ftello64(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)
+#endif
+
+
+#include "ioapi.h"
+
+voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc, const void*filename, int mode) {
+    if (pfilefunc->zfile_func64.zopen64_file != NULL)
+        return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,filename,mode);
+    else
+    {
+        return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque,(const char*)filename,mode);
+    }
+}
+
+long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin) {
+    if (pfilefunc->zfile_func64.zseek64_file != NULL)
+        return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin);
+    else
+    {
+        uLong offsetTruncated = (uLong)offset;
+        if (offsetTruncated != offset)
+            return -1;
+        else
+            return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream,offsetTruncated,origin);
+    }
+}
+
+ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc, voidpf filestream) {
+    if (pfilefunc->zfile_func64.zseek64_file != NULL)
+        return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream);
+    else
+    {
+        uLong tell_uLong = (uLong)(*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream);
+        if ((tell_uLong) == MAXU32)
+            return (ZPOS64_T)-1;
+        else
+            return tell_uLong;
+    }
+}
+
+void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32, const zlib_filefunc_def* p_filefunc32) {
+    p_filefunc64_32->zfile_func64.zopen64_file = NULL;
+    p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file;
+    p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file;
+    p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file;
+    p_filefunc64_32->zfile_func64.ztell64_file = NULL;
+    p_filefunc64_32->zfile_func64.zseek64_file = NULL;
+    p_filefunc64_32->zfile_func64.zclose_file = p_filefunc32->zclose_file;
+    p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
+    p_filefunc64_32->zfile_func64.opaque = p_filefunc32->opaque;
+    p_filefunc64_32->zseek32_file = p_filefunc32->zseek_file;
+    p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file;
+}
+
+
+
+static voidpf ZCALLBACK fopen_file_func(voidpf opaque, const char* filename, int mode) {
+    FILE* file = NULL;
+    const char* mode_fopen = NULL;
+    (void)opaque;
+    if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
+        mode_fopen = "rb";
+    else
+    if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
+        mode_fopen = "r+b";
+    else
+    if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+        mode_fopen = "wb";
+
+    if ((filename!=NULL) && (mode_fopen != NULL))
+        file = fopen(filename, mode_fopen);
+    return file;
+}
+
+static voidpf ZCALLBACK fopen64_file_func(voidpf opaque, const void* filename, int mode) {
+    FILE* file = NULL;
+    const char* mode_fopen = NULL;
+    (void)opaque;
+    if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
+        mode_fopen = "rb";
+    else
+    if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
+        mode_fopen = "r+b";
+    else
+    if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+        mode_fopen = "wb";
+
+    if ((filename!=NULL) && (mode_fopen != NULL))
+        file = FOPEN_FUNC((const char*)filename, mode_fopen);
+    return file;
+}
+
+
+static uLong ZCALLBACK fread_file_func(voidpf opaque, voidpf stream, void* buf, uLong size) {
+    uLong ret;
+    (void)opaque;
+    ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);
+    return ret;
+}
+
+static uLong ZCALLBACK fwrite_file_func(voidpf opaque, voidpf stream, const void* buf, uLong size) {
+    uLong ret;
+    (void)opaque;
+    ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);
+    return ret;
+}
+
+static long ZCALLBACK ftell_file_func(voidpf opaque, voidpf stream) {
+    long ret;
+    (void)opaque;
+    ret = ftell((FILE *)stream);
+    return ret;
+}
+
+
+static ZPOS64_T ZCALLBACK ftell64_file_func(voidpf opaque, voidpf stream) {
+    ZPOS64_T ret;
+    (void)opaque;
+    ret = (ZPOS64_T)FTELLO_FUNC((FILE *)stream);
+    return ret;
+}
+
+static long ZCALLBACK fseek_file_func(voidpf opaque, voidpf stream, uLong offset, int origin) {
+    int fseek_origin=0;
+    long ret;
+    (void)opaque;
+    switch (origin)
+    {
+    case ZLIB_FILEFUNC_SEEK_CUR :
+        fseek_origin = SEEK_CUR;
+        break;
+    case ZLIB_FILEFUNC_SEEK_END :
+        fseek_origin = SEEK_END;
+        break;
+    case ZLIB_FILEFUNC_SEEK_SET :
+        fseek_origin = SEEK_SET;
+        break;
+    default: return -1;
+    }
+    ret = 0;
+    if (fseek((FILE *)stream, (long)offset, fseek_origin) != 0)
+        ret = -1;
+    return ret;
+}
+
+static long ZCALLBACK fseek64_file_func(voidpf opaque, voidpf stream, ZPOS64_T offset, int origin) {
+    int fseek_origin=0;
+    long ret;
+    (void)opaque;
+    switch (origin)
+    {
+    case ZLIB_FILEFUNC_SEEK_CUR :
+        fseek_origin = SEEK_CUR;
+        break;
+    case ZLIB_FILEFUNC_SEEK_END :
+        fseek_origin = SEEK_END;
+        break;
+    case ZLIB_FILEFUNC_SEEK_SET :
+        fseek_origin = SEEK_SET;
+        break;
+    default: return -1;
+    }
+    ret = 0;
+
+    if(FSEEKO_FUNC((FILE *)stream, (z_off64_t)offset, fseek_origin) != 0)
+                        ret = -1;
+
+    return ret;
+}
+
+
+static int ZCALLBACK fclose_file_func(voidpf opaque, voidpf stream) {
+    int ret;
+    (void)opaque;
+    ret = fclose((FILE *)stream);
+    return ret;
+}
+
+static int ZCALLBACK ferror_file_func(voidpf opaque, voidpf stream) {
+    int ret;
+    (void)opaque;
+    ret = ferror((FILE *)stream);
+    return ret;
+}
+
+void fill_fopen_filefunc(zlib_filefunc_def* pzlib_filefunc_def) {
+    pzlib_filefunc_def->zopen_file = fopen_file_func;
+    pzlib_filefunc_def->zread_file = fread_file_func;
+    pzlib_filefunc_def->zwrite_file = fwrite_file_func;
+    pzlib_filefunc_def->ztell_file = ftell_file_func;
+    pzlib_filefunc_def->zseek_file = fseek_file_func;
+    pzlib_filefunc_def->zclose_file = fclose_file_func;
+    pzlib_filefunc_def->zerror_file = ferror_file_func;
+    pzlib_filefunc_def->opaque = NULL;
+}
+
+void fill_fopen64_filefunc(zlib_filefunc64_def* pzlib_filefunc_def) {
+    pzlib_filefunc_def->zopen64_file = fopen64_file_func;
+    pzlib_filefunc_def->zread_file = fread_file_func;
+    pzlib_filefunc_def->zwrite_file = fwrite_file_func;
+    pzlib_filefunc_def->ztell64_file = ftell64_file_func;
+    pzlib_filefunc_def->zseek64_file = fseek64_file_func;
+    pzlib_filefunc_def->zclose_file = fclose_file_func;
+    pzlib_filefunc_def->zerror_file = ferror_file_func;
+    pzlib_filefunc_def->opaque = NULL;
+}
diff --git a/compat/zlib/contrib/minizip/ioapi.h b/compat/zlib/contrib/minizip/ioapi.h
new file mode 100644
index 0000000..a2d2e6e
--- /dev/null
+++ b/compat/zlib/contrib/minizip/ioapi.h
@@ -0,0 +1,210 @@
+/* ioapi.h -- IO base function header for compress/uncompress .zip
+   part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications for Zip64 support
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+         For more info read MiniZip_info.txt
+
+         Changes
+
+    Oct-2009 - Defined ZPOS64_T to fpos_t on windows and u_int64_t on linux. (might need to find a better why for this)
+    Oct-2009 - Change to fseeko64, ftello64 and fopen64 so large files would work on linux.
+               More if/def section may be needed to support other platforms
+    Oct-2009 - Defined fxxxx64 calls to normal fopen/ftell/fseek so they would compile on windows.
+                          (but you should use iowin32.c for windows instead)
+
+*/
+
+#ifndef _ZLIBIOAPI64_H
+#define _ZLIBIOAPI64_H
+
+#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__))
+
+  // Linux needs this to support file operation on files larger then 4+GB
+  // But might need better if/def to select just the platforms that needs them.
+
+        #ifndef __USE_FILE_OFFSET64
+                #define __USE_FILE_OFFSET64
+        #endif
+        #ifndef __USE_LARGEFILE64
+                #define __USE_LARGEFILE64
+        #endif
+        #ifndef _LARGEFILE64_SOURCE
+                #define _LARGEFILE64_SOURCE
+        #endif
+        #ifndef _FILE_OFFSET_BIT
+                #define _FILE_OFFSET_BIT 64
+        #endif
+
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "zlib.h"
+
+#if defined(USE_FILE32API)
+#define fopen64 fopen
+#define ftello64 ftell
+#define fseeko64 fseek
+#else
+#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__HAIKU__) || defined(MINIZIP_FOPEN_NO_64)
+#define fopen64 fopen
+#define ftello64 ftello
+#define fseeko64 fseeko
+#endif
+#ifdef _MSC_VER
+ #define fopen64 fopen
+ #if (_MSC_VER >= 1400) && (!(defined(NO_MSCVER_FILE64_FUNC)))
+  #define ftello64 _ftelli64
+  #define fseeko64 _fseeki64
+ #else // old MSC
+  #define ftello64 ftell
+  #define fseeko64 fseek
+ #endif
+#endif
+#endif
+
+/*
+#ifndef ZPOS64_T
+  #ifdef _WIN32
+                #define ZPOS64_T fpos_t
+  #else
+    #include <stdint.h>
+    #define ZPOS64_T uint64_t
+  #endif
+#endif
+*/
+
+#ifdef HAVE_MINIZIP64_CONF_H
+#include "mz64conf.h"
+#endif
+
+/* a type chosen by DEFINE */
+#ifdef HAVE_64BIT_INT_CUSTOM
+typedef  64BIT_INT_CUSTOM_TYPE ZPOS64_T;
+#else
+#ifdef HAS_STDINT_H
+#include "stdint.h"
+typedef uint64_t ZPOS64_T;
+#else
+
+
+
+#if defined(_MSC_VER) || defined(__BORLANDC__)
+typedef unsigned __int64 ZPOS64_T;
+#else
+typedef unsigned long long int ZPOS64_T;
+#endif
+#endif
+#endif
+
+/* Maximum unsigned 32-bit value used as placeholder for zip64 */
+#ifndef MAXU32
+#define MAXU32 (0xffffffff)
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#define ZLIB_FILEFUNC_SEEK_CUR (1)
+#define ZLIB_FILEFUNC_SEEK_END (2)
+#define ZLIB_FILEFUNC_SEEK_SET (0)
+
+#define ZLIB_FILEFUNC_MODE_READ      (1)
+#define ZLIB_FILEFUNC_MODE_WRITE     (2)
+#define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3)
+
+#define ZLIB_FILEFUNC_MODE_EXISTING (4)
+#define ZLIB_FILEFUNC_MODE_CREATE   (8)
+
+
+#ifndef ZCALLBACK
+ #if (defined(WIN32) || defined(_WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
+   #define ZCALLBACK CALLBACK
+ #else
+   #define ZCALLBACK
+ #endif
+#endif
+
+
+
+
+typedef voidpf   (ZCALLBACK *open_file_func)      (voidpf opaque, const char* filename, int mode);
+typedef uLong    (ZCALLBACK *read_file_func)      (voidpf opaque, voidpf stream, void* buf, uLong size);
+typedef uLong    (ZCALLBACK *write_file_func)     (voidpf opaque, voidpf stream, const void* buf, uLong size);
+typedef int      (ZCALLBACK *close_file_func)     (voidpf opaque, voidpf stream);
+typedef int      (ZCALLBACK *testerror_file_func) (voidpf opaque, voidpf stream);
+
+typedef long     (ZCALLBACK *tell_file_func)      (voidpf opaque, voidpf stream);
+typedef long     (ZCALLBACK *seek_file_func)      (voidpf opaque, voidpf stream, uLong offset, int origin);
+
+
+/* here is the "old" 32 bits structure */
+typedef struct zlib_filefunc_def_s
+{
+    open_file_func      zopen_file;
+    read_file_func      zread_file;
+    write_file_func     zwrite_file;
+    tell_file_func      ztell_file;
+    seek_file_func      zseek_file;
+    close_file_func     zclose_file;
+    testerror_file_func zerror_file;
+    voidpf              opaque;
+} zlib_filefunc_def;
+
+typedef ZPOS64_T (ZCALLBACK *tell64_file_func)    (voidpf opaque, voidpf stream);
+typedef long     (ZCALLBACK *seek64_file_func)    (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin);
+typedef voidpf   (ZCALLBACK *open64_file_func)    (voidpf opaque, const void* filename, int mode);
+
+typedef struct zlib_filefunc64_def_s
+{
+    open64_file_func    zopen64_file;
+    read_file_func      zread_file;
+    write_file_func     zwrite_file;
+    tell64_file_func    ztell64_file;
+    seek64_file_func    zseek64_file;
+    close_file_func     zclose_file;
+    testerror_file_func zerror_file;
+    voidpf              opaque;
+} zlib_filefunc64_def;
+
+void fill_fopen64_filefunc(zlib_filefunc64_def* pzlib_filefunc_def);
+void fill_fopen_filefunc(zlib_filefunc_def* pzlib_filefunc_def);
+
+/* now internal definition, only for zip.c and unzip.h */
+typedef struct zlib_filefunc64_32_def_s
+{
+    zlib_filefunc64_def zfile_func64;
+    open_file_func      zopen32_file;
+    tell_file_func      ztell32_file;
+    seek_file_func      zseek32_file;
+} zlib_filefunc64_32_def;
+
+
+#define ZREAD64(filefunc,filestream,buf,size)     ((*((filefunc).zfile_func64.zread_file))   ((filefunc).zfile_func64.opaque,filestream,buf,size))
+#define ZWRITE64(filefunc,filestream,buf,size)    ((*((filefunc).zfile_func64.zwrite_file))  ((filefunc).zfile_func64.opaque,filestream,buf,size))
+//#define ZTELL64(filefunc,filestream)            ((*((filefunc).ztell64_file)) ((filefunc).opaque,filestream))
+//#define ZSEEK64(filefunc,filestream,pos,mode)   ((*((filefunc).zseek64_file)) ((filefunc).opaque,filestream,pos,mode))
+#define ZCLOSE64(filefunc,filestream)             ((*((filefunc).zfile_func64.zclose_file))  ((filefunc).zfile_func64.opaque,filestream))
+#define ZERROR64(filefunc,filestream)             ((*((filefunc).zfile_func64.zerror_file))  ((filefunc).zfile_func64.opaque,filestream))
+
+voidpf call_zopen64(const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode);
+long call_zseek64(const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin);
+ZPOS64_T call_ztell64(const zlib_filefunc64_32_def* pfilefunc,voidpf filestream);
+
+void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32);
+
+#define ZOPEN64(filefunc,filename,mode)         (call_zopen64((&(filefunc)),(filename),(mode)))
+#define ZTELL64(filefunc,filestream)            (call_ztell64((&(filefunc)),(filestream)))
+#define ZSEEK64(filefunc,filestream,pos,mode)   (call_zseek64((&(filefunc)),(filestream),(pos),(mode)))
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/compat/zlib/contrib/minizip/iowin32.c b/compat/zlib/contrib/minizip/iowin32.c
new file mode 100644
index 0000000..08536e9
--- /dev/null
+++ b/compat/zlib/contrib/minizip/iowin32.c
@@ -0,0 +1,440 @@
+/* iowin32.c -- IO base function header for compress/uncompress .zip
+     Version 1.1, February 14h, 2010
+     part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications for Zip64 support
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+     For more info read MiniZip_info.txt
+
+*/
+
+#include <stdlib.h>
+
+#include "zlib.h"
+#include "ioapi.h"
+#include "iowin32.h"
+
+#ifndef INVALID_HANDLE_VALUE
+#define INVALID_HANDLE_VALUE (0xFFFFFFFF)
+#endif
+
+#ifndef INVALID_SET_FILE_POINTER
+#define INVALID_SET_FILE_POINTER ((DWORD)-1)
+#endif
+
+
+// see Include/shared/winapifamily.h in the Windows Kit
+#if defined(WINAPI_FAMILY_PARTITION) && (!(defined(IOWIN32_USING_WINRT_API)))
+
+#if !defined(WINAPI_FAMILY_ONE_PARTITION)
+#define WINAPI_FAMILY_ONE_PARTITION(PartitionSet, Partition) ((WINAPI_FAMILY & PartitionSet) == Partition)
+#endif
+
+#if WINAPI_FAMILY_ONE_PARTITION(WINAPI_FAMILY, WINAPI_PARTITION_APP)
+#define IOWIN32_USING_WINRT_API 1
+#endif
+#endif
+
+typedef struct
+{
+    HANDLE hf;
+    int error;
+} WIN32FILE_IOWIN;
+
+
+static void win32_translate_open_mode(int mode,
+                                      DWORD* lpdwDesiredAccess,
+                                      DWORD* lpdwCreationDisposition,
+                                      DWORD* lpdwShareMode,
+                                      DWORD* lpdwFlagsAndAttributes) {
+    *lpdwDesiredAccess = *lpdwShareMode = *lpdwFlagsAndAttributes = *lpdwCreationDisposition = 0;
+
+    if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
+    {
+        *lpdwDesiredAccess = GENERIC_READ;
+        *lpdwCreationDisposition = OPEN_EXISTING;
+        *lpdwShareMode = FILE_SHARE_READ;
+    }
+    else if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
+    {
+        *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
+        *lpdwCreationDisposition = OPEN_EXISTING;
+    }
+    else if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+    {
+        *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
+        *lpdwCreationDisposition = CREATE_ALWAYS;
+    }
+}
+
+static voidpf win32_build_iowin(HANDLE hFile) {
+    voidpf ret=NULL;
+
+    if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE))
+    {
+        WIN32FILE_IOWIN w32fiow;
+        w32fiow.hf = hFile;
+        w32fiow.error = 0;
+        ret = malloc(sizeof(WIN32FILE_IOWIN));
+
+        if (ret==NULL)
+            CloseHandle(hFile);
+        else
+            *((WIN32FILE_IOWIN*)ret) = w32fiow;
+    }
+    return ret;
+}
+
+voidpf ZCALLBACK win32_open64_file_func(voidpf opaque, const void* filename, int mode) {
+    const char* mode_fopen = NULL;
+    DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
+    HANDLE hFile = NULL;
+
+    win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
+
+#ifdef IOWIN32_USING_WINRT_API
+#ifdef UNICODE
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+        hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
+#else
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+    {
+        WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
+        MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
+        hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
+    }
+#endif
+#else
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+        hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
+#endif
+
+    return win32_build_iowin(hFile);
+}
+
+
+voidpf ZCALLBACK win32_open64_file_funcA(voidpf opaque, const void* filename, int mode) {
+    const char* mode_fopen = NULL;
+    DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
+    HANDLE hFile = NULL;
+
+    win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
+
+#ifdef IOWIN32_USING_WINRT_API
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+    {
+        WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
+        MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
+        hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
+    }
+#else
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+        hFile = CreateFileA((LPCSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
+#endif
+
+    return win32_build_iowin(hFile);
+}
+
+
+voidpf ZCALLBACK win32_open64_file_funcW(voidpf opaque, const void* filename, int mode) {
+    const char* mode_fopen = NULL;
+    DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
+    HANDLE hFile = NULL;
+
+    win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
+
+#ifdef IOWIN32_USING_WINRT_API
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+        hFile = CreateFile2((LPCWSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition,NULL);
+#else
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+        hFile = CreateFileW((LPCWSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
+#endif
+
+    return win32_build_iowin(hFile);
+}
+
+
+voidpf ZCALLBACK win32_open_file_func(voidpf opaque, const char* filename, int mode) {
+    const char* mode_fopen = NULL;
+    DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
+    HANDLE hFile = NULL;
+
+    win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
+
+#ifdef IOWIN32_USING_WINRT_API
+#ifdef UNICODE
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+        hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
+#else
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+    {
+        WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
+        MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
+        hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
+    }
+#endif
+#else
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+        hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
+#endif
+
+    return win32_build_iowin(hFile);
+}
+
+
+uLong ZCALLBACK win32_read_file_func(voidpf opaque, voidpf stream, void* buf,uLong size) {
+    uLong ret=0;
+    HANDLE hFile = NULL;
+    if (stream!=NULL)
+        hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
+
+    if (hFile != NULL)
+    {
+        if (!ReadFile(hFile, buf, size, &ret, NULL))
+        {
+            DWORD dwErr = GetLastError();
+            if (dwErr == ERROR_HANDLE_EOF)
+                dwErr = 0;
+            ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
+        }
+    }
+
+    return ret;
+}
+
+
+uLong ZCALLBACK win32_write_file_func(voidpf opaque, voidpf stream, const void* buf, uLong size) {
+    uLong ret=0;
+    HANDLE hFile = NULL;
+    if (stream!=NULL)
+        hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
+
+    if (hFile != NULL)
+    {
+        if (!WriteFile(hFile, buf, size, &ret, NULL))
+        {
+            DWORD dwErr = GetLastError();
+            if (dwErr == ERROR_HANDLE_EOF)
+                dwErr = 0;
+            ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
+        }
+    }
+
+    return ret;
+}
+
+static BOOL MySetFilePointerEx(HANDLE hFile, LARGE_INTEGER pos, LARGE_INTEGER *newPos, DWORD dwMoveMethod) {
+#ifdef IOWIN32_USING_WINRT_API
+    return SetFilePointerEx(hFile, pos, newPos, dwMoveMethod);
+#else
+    LONG lHigh = pos.HighPart;
+    DWORD dwNewPos = SetFilePointer(hFile, pos.LowPart, &lHigh, dwMoveMethod);
+    BOOL fOk = TRUE;
+    if (dwNewPos == 0xFFFFFFFF)
+        if (GetLastError() != NO_ERROR)
+            fOk = FALSE;
+    if ((newPos != NULL) && (fOk))
+    {
+        newPos->LowPart = dwNewPos;
+        newPos->HighPart = lHigh;
+    }
+    return fOk;
+#endif
+}
+
+long ZCALLBACK win32_tell_file_func(voidpf opaque, voidpf stream) {
+    long ret=-1;
+    HANDLE hFile = NULL;
+    if (stream!=NULL)
+        hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
+    if (hFile != NULL)
+    {
+        LARGE_INTEGER pos;
+        pos.QuadPart = 0;
+
+        if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT))
+        {
+            DWORD dwErr = GetLastError();
+            ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
+            ret = -1;
+        }
+        else
+            ret=(long)pos.LowPart;
+    }
+    return ret;
+}
+
+ZPOS64_T ZCALLBACK win32_tell64_file_func(voidpf opaque, voidpf stream) {
+    ZPOS64_T ret= (ZPOS64_T)-1;
+    HANDLE hFile = NULL;
+    if (stream!=NULL)
+        hFile = ((WIN32FILE_IOWIN*)stream)->hf;
+
+    if (hFile)
+    {
+        LARGE_INTEGER pos;
+        pos.QuadPart = 0;
+
+        if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT))
+        {
+            DWORD dwErr = GetLastError();
+            ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
+            ret = (ZPOS64_T)-1;
+        }
+        else
+            ret=pos.QuadPart;
+    }
+    return ret;
+}
+
+
+long ZCALLBACK win32_seek_file_func(voidpf opaque, voidpf stream, uLong offset, int origin) {
+    DWORD dwMoveMethod=0xFFFFFFFF;
+    HANDLE hFile = NULL;
+
+    long ret=-1;
+    if (stream!=NULL)
+        hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
+    switch (origin)
+    {
+    case ZLIB_FILEFUNC_SEEK_CUR :
+        dwMoveMethod = FILE_CURRENT;
+        break;
+    case ZLIB_FILEFUNC_SEEK_END :
+        dwMoveMethod = FILE_END;
+        break;
+    case ZLIB_FILEFUNC_SEEK_SET :
+        dwMoveMethod = FILE_BEGIN;
+        break;
+    default: return -1;
+    }
+
+    if (hFile != NULL)
+    {
+        LARGE_INTEGER pos;
+        pos.QuadPart = offset;
+        if (!MySetFilePointerEx(hFile, pos, NULL, dwMoveMethod))
+        {
+            DWORD dwErr = GetLastError();
+            ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
+            ret = -1;
+        }
+        else
+            ret=0;
+    }
+    return ret;
+}
+
+long ZCALLBACK win32_seek64_file_func(voidpf opaque, voidpf stream, ZPOS64_T offset, int origin) {
+    DWORD dwMoveMethod=0xFFFFFFFF;
+    HANDLE hFile = NULL;
+    long ret=-1;
+
+    if (stream!=NULL)
+        hFile = ((WIN32FILE_IOWIN*)stream)->hf;
+
+    switch (origin)
+    {
+        case ZLIB_FILEFUNC_SEEK_CUR :
+            dwMoveMethod = FILE_CURRENT;
+            break;
+        case ZLIB_FILEFUNC_SEEK_END :
+            dwMoveMethod = FILE_END;
+            break;
+        case ZLIB_FILEFUNC_SEEK_SET :
+            dwMoveMethod = FILE_BEGIN;
+            break;
+        default: return -1;
+    }
+
+    if (hFile)
+    {
+        LARGE_INTEGER pos;
+        pos.QuadPart = offset;
+        if (!MySetFilePointerEx(hFile, pos, NULL, dwMoveMethod))
+        {
+            DWORD dwErr = GetLastError();
+            ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
+            ret = -1;
+        }
+        else
+            ret=0;
+    }
+    return ret;
+}
+
+int ZCALLBACK win32_close_file_func(voidpf opaque, voidpf stream) {
+    int ret=-1;
+
+    if (stream!=NULL)
+    {
+        HANDLE hFile;
+        hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
+        if (hFile != NULL)
+        {
+            CloseHandle(hFile);
+            ret=0;
+        }
+        free(stream);
+    }
+    return ret;
+}
+
+int ZCALLBACK win32_error_file_func(voidpf opaque, voidpf stream) {
+    int ret=-1;
+    if (stream!=NULL)
+    {
+        ret = ((WIN32FILE_IOWIN*)stream) -> error;
+    }
+    return ret;
+}
+
+void fill_win32_filefunc(zlib_filefunc_def* pzlib_filefunc_def) {
+    pzlib_filefunc_def->zopen_file = win32_open_file_func;
+    pzlib_filefunc_def->zread_file = win32_read_file_func;
+    pzlib_filefunc_def->zwrite_file = win32_write_file_func;
+    pzlib_filefunc_def->ztell_file = win32_tell_file_func;
+    pzlib_filefunc_def->zseek_file = win32_seek_file_func;
+    pzlib_filefunc_def->zclose_file = win32_close_file_func;
+    pzlib_filefunc_def->zerror_file = win32_error_file_func;
+    pzlib_filefunc_def->opaque = NULL;
+}
+
+void fill_win32_filefunc64(zlib_filefunc64_def* pzlib_filefunc_def) {
+    pzlib_filefunc_def->zopen64_file = win32_open64_file_func;
+    pzlib_filefunc_def->zread_file = win32_read_file_func;
+    pzlib_filefunc_def->zwrite_file = win32_write_file_func;
+    pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
+    pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
+    pzlib_filefunc_def->zclose_file = win32_close_file_func;
+    pzlib_filefunc_def->zerror_file = win32_error_file_func;
+    pzlib_filefunc_def->opaque = NULL;
+}
+
+
+void fill_win32_filefunc64A(zlib_filefunc64_def* pzlib_filefunc_def) {
+    pzlib_filefunc_def->zopen64_file = win32_open64_file_funcA;
+    pzlib_filefunc_def->zread_file = win32_read_file_func;
+    pzlib_filefunc_def->zwrite_file = win32_write_file_func;
+    pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
+    pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
+    pzlib_filefunc_def->zclose_file = win32_close_file_func;
+    pzlib_filefunc_def->zerror_file = win32_error_file_func;
+    pzlib_filefunc_def->opaque = NULL;
+}
+
+
+void fill_win32_filefunc64W(zlib_filefunc64_def* pzlib_filefunc_def) {
+    pzlib_filefunc_def->zopen64_file = win32_open64_file_funcW;
+    pzlib_filefunc_def->zread_file = win32_read_file_func;
+    pzlib_filefunc_def->zwrite_file = win32_write_file_func;
+    pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
+    pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
+    pzlib_filefunc_def->zclose_file = win32_close_file_func;
+    pzlib_filefunc_def->zerror_file = win32_error_file_func;
+    pzlib_filefunc_def->opaque = NULL;
+}
diff --git a/compat/zlib/contrib/minizip/iowin32.h b/compat/zlib/contrib/minizip/iowin32.h
new file mode 100644
index 0000000..a23a65d
--- /dev/null
+++ b/compat/zlib/contrib/minizip/iowin32.h
@@ -0,0 +1,28 @@
+/* iowin32.h -- IO base function header for compress/uncompress .zip
+     Version 1.1, February 14h, 2010
+     part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications for Zip64 support
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+         For more info read MiniZip_info.txt
+
+*/
+
+#include <windows.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void fill_win32_filefunc(zlib_filefunc_def* pzlib_filefunc_def);
+void fill_win32_filefunc64(zlib_filefunc64_def* pzlib_filefunc_def);
+void fill_win32_filefunc64A(zlib_filefunc64_def* pzlib_filefunc_def);
+void fill_win32_filefunc64W(zlib_filefunc64_def* pzlib_filefunc_def);
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/compat/zlib/contrib/minizip/make_vms.com b/compat/zlib/contrib/minizip/make_vms.com
new file mode 100644
index 0000000..9ac13a9
--- /dev/null
+++ b/compat/zlib/contrib/minizip/make_vms.com
@@ -0,0 +1,25 @@
+$ if f$search("ioapi.h_orig") .eqs. "" then copy ioapi.h ioapi.h_orig
+$ open/write zdef vmsdefs.h
+$ copy sys$input: zdef
+$ deck
+#define unix
+#define fill_zlib_filefunc64_32_def_from_filefunc32 fillzffunc64from
+#define Write_Zip64EndOfCentralDirectoryLocator Write_Zip64EoDLocator
+#define Write_Zip64EndOfCentralDirectoryRecord Write_Zip64EoDRecord
+#define Write_EndOfCentralDirectoryRecord Write_EoDRecord
+$ eod
+$ close zdef
+$ copy vmsdefs.h,ioapi.h_orig ioapi.h
+$ cc/include=[--]/prefix=all ioapi.c
+$ cc/include=[--]/prefix=all miniunz.c
+$ cc/include=[--]/prefix=all unzip.c
+$ cc/include=[--]/prefix=all minizip.c
+$ cc/include=[--]/prefix=all zip.c
+$ link miniunz,unzip,ioapi,[--]libz.olb/lib
+$ link minizip,zip,ioapi,[--]libz.olb/lib
+$ mcr []minizip test minizip_info.txt
+$ mcr []miniunz -l test.zip
+$ rename minizip_info.txt; minizip_info.txt_old
+$ mcr []miniunz test.zip
+$ delete test.zip;*
+$exit
diff --git a/compat/zlib/contrib/minizip/miniunz.c b/compat/zlib/contrib/minizip/miniunz.c
new file mode 100644
index 0000000..d627c42
--- /dev/null
+++ b/compat/zlib/contrib/minizip/miniunz.c
@@ -0,0 +1,647 @@
+/*
+   miniunz.c
+   Version 1.1, February 14h, 2010
+   sample part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications of Unzip for Zip64
+         Copyright (C) 2007-2008 Even Rouault
+
+         Modifications for Zip64 support on both zip and unzip
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+*/
+
+#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__))
+        #ifndef __USE_FILE_OFFSET64
+                #define __USE_FILE_OFFSET64
+        #endif
+        #ifndef __USE_LARGEFILE64
+                #define __USE_LARGEFILE64
+        #endif
+        #ifndef _LARGEFILE64_SOURCE
+                #define _LARGEFILE64_SOURCE
+        #endif
+        #ifndef _FILE_OFFSET_BIT
+                #define _FILE_OFFSET_BIT 64
+        #endif
+#endif
+
+#if defined(__APPLE__) || defined(__HAIKU__) || defined(MINIZIP_FOPEN_NO_64)
+// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
+#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
+#define FTELLO_FUNC(stream) ftello(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin)
+#else
+#define FOPEN_FUNC(filename, mode) fopen64(filename, mode)
+#define FTELLO_FUNC(stream) ftello64(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)
+#endif
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+
+#ifdef _WIN32
+# include <direct.h>
+# include <io.h>
+#else
+# include <unistd.h>
+# include <utime.h>
+#endif
+
+
+#include "unzip.h"
+
+#define CASESENSITIVITY (0)
+#define WRITEBUFFERSIZE (8192)
+#define MAXFILENAME (256)
+
+#ifdef _WIN32
+#define USEWIN32IOAPI
+#include "iowin32.h"
+#endif
+/*
+  mini unzip, demo of unzip package
+
+  usage :
+  Usage : miniunz [-exvlo] file.zip [file_to_extract] [-d extractdir]
+
+  list the file in the zipfile, and print the content of FILE_ID.ZIP or README.TXT
+    if it exists
+*/
+
+
+/* change_file_date : change the date/time of a file
+    filename : the filename of the file where date/time must be modified
+    dosdate : the new date at the MSDOS format (4 bytes)
+    tmu_date : the SAME new date at the tm_unz format */
+static void change_file_date(const char *filename, uLong dosdate, tm_unz tmu_date) {
+#ifdef _WIN32
+  HANDLE hFile;
+  FILETIME ftm,ftLocal,ftCreate,ftLastAcc,ftLastWrite;
+
+  hFile = CreateFileA(filename,GENERIC_READ | GENERIC_WRITE,
+                      0,NULL,OPEN_EXISTING,0,NULL);
+  GetFileTime(hFile,&ftCreate,&ftLastAcc,&ftLastWrite);
+  DosDateTimeToFileTime((WORD)(dosdate>>16),(WORD)dosdate,&ftLocal);
+  LocalFileTimeToFileTime(&ftLocal,&ftm);
+  SetFileTime(hFile,&ftm,&ftLastAcc,&ftm);
+  CloseHandle(hFile);
+#else
+#if defined(unix) || defined(__APPLE__)
+  (void)dosdate;
+  struct utimbuf ut;
+  struct tm newdate;
+  newdate.tm_sec = tmu_date.tm_sec;
+  newdate.tm_min=tmu_date.tm_min;
+  newdate.tm_hour=tmu_date.tm_hour;
+  newdate.tm_mday=tmu_date.tm_mday;
+  newdate.tm_mon=tmu_date.tm_mon;
+  if (tmu_date.tm_year > 1900)
+      newdate.tm_year=tmu_date.tm_year - 1900;
+  else
+      newdate.tm_year=tmu_date.tm_year ;
+  newdate.tm_isdst=-1;
+
+  ut.actime=ut.modtime=mktime(&newdate);
+  utime(filename,&ut);
+#else
+  (void)filename;
+  (void)dosdate;
+  (void)tmu_date;
+#endif
+#endif
+}
+
+
+/* mymkdir and change_file_date are not 100 % portable
+   As I don't know well Unix, I wait feedback for the unix portion */
+
+static int mymkdir(const char* dirname) {
+    int ret=0;
+#ifdef _WIN32
+    ret = _mkdir(dirname);
+#elif unix
+    ret = mkdir (dirname,0775);
+#elif __APPLE__
+    ret = mkdir (dirname,0775);
+#else
+    (void)dirname;
+#endif
+    return ret;
+}
+
+static int makedir(const char *newdir) {
+  char *buffer ;
+  char *p;
+  size_t len = strlen(newdir);
+
+  if (len == 0)
+    return 0;
+
+  buffer = (char*)malloc(len+1);
+        if (buffer==NULL)
+        {
+                printf("Error allocating memory\n");
+                return UNZ_INTERNALERROR;
+        }
+  strcpy(buffer,newdir);
+
+  if (buffer[len-1] == '/') {
+    buffer[len-1] = '\0';
+  }
+  if (mymkdir(buffer) == 0)
+    {
+      free(buffer);
+      return 1;
+    }
+
+  p = buffer+1;
+  while (1)
+    {
+      char hold;
+
+      while(*p && *p != '\\' && *p != '/')
+        p++;
+      hold = *p;
+      *p = 0;
+      if ((mymkdir(buffer) == -1) && (errno == ENOENT))
+        {
+          printf("couldn't create directory %s\n",buffer);
+          free(buffer);
+          return 0;
+        }
+      if (hold == 0)
+        break;
+      *p++ = hold;
+    }
+  free(buffer);
+  return 1;
+}
+
+static void do_banner(void) {
+    printf("MiniUnz 1.1, demo of zLib + Unz package written by Gilles Vollant\n");
+    printf("more info at http://www.winimage.com/zLibDll/unzip.html\n\n");
+}
+
+static void do_help(void) {
+    printf("Usage : miniunz [-e] [-x] [-v] [-l] [-o] [-p password] file.zip [file_to_extr.] [-d extractdir]\n\n" \
+           "  -e  Extract without pathname (junk paths)\n" \
+           "  -x  Extract with pathname\n" \
+           "  -v  list files\n" \
+           "  -l  list files\n" \
+           "  -d  directory to extract into\n" \
+           "  -o  overwrite files without prompting\n" \
+           "  -p  extract encrypted file using password\n\n");
+}
+
+static void Display64BitsSize(ZPOS64_T n, int size_char) {
+  /* to avoid compatibility problem , we do here the conversion */
+  char number[21];
+  int offset=19;
+  int pos_string = 19;
+  number[20]=0;
+  for (;;) {
+      number[offset]=(char)((n%10)+'0');
+      if (number[offset] != '0')
+          pos_string=offset;
+      n/=10;
+      if (offset==0)
+          break;
+      offset--;
+  }
+  {
+      int size_display_string = 19-pos_string;
+      while (size_char > size_display_string)
+      {
+          size_char--;
+          printf(" ");
+      }
+  }
+
+  printf("%s",&number[pos_string]);
+}
+
+static int do_list(unzFile uf) {
+    uLong i;
+    unz_global_info64 gi;
+    int err;
+
+    err = unzGetGlobalInfo64(uf,&gi);
+    if (err!=UNZ_OK)
+        printf("error %d with zipfile in unzGetGlobalInfo \n",err);
+    printf("  Length  Method     Size Ratio   Date    Time   CRC-32     Name\n");
+    printf("  ------  ------     ---- -----   ----    ----   ------     ----\n");
+    for (i=0;i<gi.number_entry;i++)
+    {
+        char filename_inzip[256];
+        unz_file_info64 file_info;
+        uLong ratio=0;
+        const char *string_method = "";
+        char charCrypt=' ';
+        err = unzGetCurrentFileInfo64(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
+        if (err!=UNZ_OK)
+        {
+            printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
+            break;
+        }
+        if (file_info.uncompressed_size>0)
+            ratio = (uLong)((file_info.compressed_size*100)/file_info.uncompressed_size);
+
+        /* display a '*' if the file is encrypted */
+        if ((file_info.flag & 1) != 0)
+            charCrypt='*';
+
+        if (file_info.compression_method==0)
+            string_method="Stored";
+        else
+        if (file_info.compression_method==Z_DEFLATED)
+        {
+            uInt iLevel=(uInt)((file_info.flag & 0x6)/2);
+            if (iLevel==0)
+              string_method="Defl:N";
+            else if (iLevel==1)
+              string_method="Defl:X";
+            else if ((iLevel==2) || (iLevel==3))
+              string_method="Defl:F"; /* 2:fast , 3 : extra fast*/
+        }
+        else
+        if (file_info.compression_method==Z_BZIP2ED)
+        {
+              string_method="BZip2 ";
+        }
+        else
+            string_method="Unkn. ";
+
+        Display64BitsSize(file_info.uncompressed_size,7);
+        printf("  %6s%c",string_method,charCrypt);
+        Display64BitsSize(file_info.compressed_size,7);
+        printf(" %3lu%%  %2.2lu-%2.2lu-%2.2lu  %2.2lu:%2.2lu  %8.8lx   %s\n",
+                ratio,
+                (uLong)file_info.tmu_date.tm_mon + 1,
+                (uLong)file_info.tmu_date.tm_mday,
+                (uLong)file_info.tmu_date.tm_year % 100,
+                (uLong)file_info.tmu_date.tm_hour,(uLong)file_info.tmu_date.tm_min,
+                (uLong)file_info.crc,filename_inzip);
+        if ((i+1)<gi.number_entry)
+        {
+            err = unzGoToNextFile(uf);
+            if (err!=UNZ_OK)
+            {
+                printf("error %d with zipfile in unzGoToNextFile\n",err);
+                break;
+            }
+        }
+    }
+
+    return 0;
+}
+
+
+static int do_extract_currentfile(unzFile uf, const int* popt_extract_without_path, int* popt_overwrite, const char* password) {
+    char filename_inzip[256];
+    char* filename_withoutpath;
+    char* p;
+    int err=UNZ_OK;
+    FILE *fout=NULL;
+    void* buf;
+    uInt size_buf;
+
+    unz_file_info64 file_info;
+    err = unzGetCurrentFileInfo64(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
+
+    if (err!=UNZ_OK)
+    {
+        printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
+        return err;
+    }
+
+    size_buf = WRITEBUFFERSIZE;
+    buf = (void*)malloc(size_buf);
+    if (buf==NULL)
+    {
+        printf("Error allocating memory\n");
+        return UNZ_INTERNALERROR;
+    }
+
+    p = filename_withoutpath = filename_inzip;
+    while ((*p) != '\0')
+    {
+        if (((*p)=='/') || ((*p)=='\\'))
+            filename_withoutpath = p+1;
+        p++;
+    }
+
+    if ((*filename_withoutpath)=='\0')
+    {
+        if ((*popt_extract_without_path)==0)
+        {
+            printf("creating directory: %s\n",filename_inzip);
+            mymkdir(filename_inzip);
+        }
+    }
+    else
+    {
+        const char* write_filename;
+        int skip=0;
+
+        if ((*popt_extract_without_path)==0)
+            write_filename = filename_inzip;
+        else
+            write_filename = filename_withoutpath;
+
+        if (write_filename[0]!='\0')
+        {
+            const char* relative_check = write_filename;
+            while (relative_check[1]!='\0')
+            {
+                if (relative_check[0]=='.' && relative_check[1]=='.')
+                    write_filename = relative_check;
+                relative_check++;
+            }
+        }
+
+        while (write_filename[0]=='/' || write_filename[0]=='.')
+            write_filename++;
+
+        err = unzOpenCurrentFilePassword(uf,password);
+        if (err!=UNZ_OK)
+        {
+            printf("error %d with zipfile in unzOpenCurrentFilePassword\n",err);
+        }
+
+        if (((*popt_overwrite)==0) && (err==UNZ_OK))
+        {
+            char rep=0;
+            FILE* ftestexist;
+            ftestexist = FOPEN_FUNC(write_filename,"rb");
+            if (ftestexist!=NULL)
+            {
+                fclose(ftestexist);
+                do
+                {
+                    char answer[128];
+                    int ret;
+
+                    printf("The file %s exists. Overwrite ? [y]es, [n]o, [A]ll: ",write_filename);
+                    ret = scanf("%1s",answer);
+                    if (ret != 1)
+                    {
+                       exit(EXIT_FAILURE);
+                    }
+                    rep = answer[0] ;
+                    if ((rep>='a') && (rep<='z'))
+                        rep -= 0x20;
+                }
+                while ((rep!='Y') && (rep!='N') && (rep!='A'));
+            }
+
+            if (rep == 'N')
+                skip = 1;
+
+            if (rep == 'A')
+                *popt_overwrite=1;
+        }
+
+        if ((skip==0) && (err==UNZ_OK))
+        {
+            fout=FOPEN_FUNC(write_filename,"wb");
+            /* some zipfile don't contain directory alone before file */
+            if ((fout==NULL) && ((*popt_extract_without_path)==0) &&
+                                (filename_withoutpath!=(char*)filename_inzip))
+            {
+                char c=*(filename_withoutpath-1);
+                *(filename_withoutpath-1)='\0';
+                makedir(write_filename);
+                *(filename_withoutpath-1)=c;
+                fout=FOPEN_FUNC(write_filename,"wb");
+            }
+
+            if (fout==NULL)
+            {
+                printf("error opening %s\n",write_filename);
+            }
+        }
+
+        if (fout!=NULL)
+        {
+            printf(" extracting: %s\n",write_filename);
+
+            do
+            {
+                err = unzReadCurrentFile(uf,buf,size_buf);
+                if (err<0)
+                {
+                    printf("error %d with zipfile in unzReadCurrentFile\n",err);
+                    break;
+                }
+                if (err>0)
+                    if (fwrite(buf,(unsigned)err,1,fout)!=1)
+                    {
+                        printf("error in writing extracted file\n");
+                        err=UNZ_ERRNO;
+                        break;
+                    }
+            }
+            while (err>0);
+            if (fout)
+                    fclose(fout);
+
+            if (err==0)
+                change_file_date(write_filename,file_info.dosDate,
+                                 file_info.tmu_date);
+        }
+
+        if (err==UNZ_OK)
+        {
+            err = unzCloseCurrentFile (uf);
+            if (err!=UNZ_OK)
+            {
+                printf("error %d with zipfile in unzCloseCurrentFile\n",err);
+            }
+        }
+        else
+            unzCloseCurrentFile(uf); /* don't lose the error */
+    }
+
+    free(buf);
+    return err;
+}
+
+
+static int do_extract(unzFile uf, int opt_extract_without_path, int opt_overwrite, const char* password) {
+    uLong i;
+    unz_global_info64 gi;
+    int err;
+
+    err = unzGetGlobalInfo64(uf,&gi);
+    if (err!=UNZ_OK)
+        printf("error %d with zipfile in unzGetGlobalInfo \n",err);
+
+    for (i=0;i<gi.number_entry;i++)
+    {
+        if (do_extract_currentfile(uf,&opt_extract_without_path,
+                                      &opt_overwrite,
+                                      password) != UNZ_OK)
+            break;
+
+        if ((i+1)<gi.number_entry)
+        {
+            err = unzGoToNextFile(uf);
+            if (err!=UNZ_OK)
+            {
+                printf("error %d with zipfile in unzGoToNextFile\n",err);
+                break;
+            }
+        }
+    }
+
+    return 0;
+}
+
+static int do_extract_onefile(unzFile uf, const char* filename, int opt_extract_without_path, int opt_overwrite, const char* password) {
+    if (unzLocateFile(uf,filename,CASESENSITIVITY)!=UNZ_OK)
+    {
+        printf("file %s not found in the zipfile\n",filename);
+        return 2;
+    }
+
+    if (do_extract_currentfile(uf,&opt_extract_without_path,
+                                      &opt_overwrite,
+                                      password) == UNZ_OK)
+        return 0;
+    else
+        return 1;
+}
+
+
+int main(int argc, char *argv[]) {
+    const char *zipfilename=NULL;
+    const char *filename_to_extract=NULL;
+    const char *password=NULL;
+    char filename_try[MAXFILENAME+16] = "";
+    int i;
+    int ret_value=0;
+    int opt_do_list=0;
+    int opt_do_extract=1;
+    int opt_do_extract_withoutpath=0;
+    int opt_overwrite=0;
+    int opt_extractdir=0;
+    const char *dirname=NULL;
+    unzFile uf=NULL;
+
+    do_banner();
+    if (argc==1)
+    {
+        do_help();
+        return 0;
+    }
+    else
+    {
+        for (i=1;i<argc;i++)
+        {
+            if ((*argv[i])=='-')
+            {
+                const char *p=argv[i]+1;
+
+                while ((*p)!='\0')
+                {
+                    char c=*(p++);
+                    if ((c=='l') || (c=='L'))
+                        opt_do_list = 1;
+                    if ((c=='v') || (c=='V'))
+                        opt_do_list = 1;
+                    if ((c=='x') || (c=='X'))
+                        opt_do_extract = 1;
+                    if ((c=='e') || (c=='E'))
+                        opt_do_extract = opt_do_extract_withoutpath = 1;
+                    if ((c=='o') || (c=='O'))
+                        opt_overwrite=1;
+                    if ((c=='d') || (c=='D'))
+                    {
+                        opt_extractdir=1;
+                        dirname=argv[i+1];
+                    }
+
+                    if (((c=='p') || (c=='P')) && (i+1<argc))
+                    {
+                        password=argv[i+1];
+                        i++;
+                    }
+                }
+            }
+            else
+            {
+                if (zipfilename == NULL)
+                    zipfilename = argv[i];
+                else if ((filename_to_extract==NULL) && (!opt_extractdir))
+                        filename_to_extract = argv[i] ;
+            }
+        }
+    }
+
+    if (zipfilename!=NULL)
+    {
+
+#        ifdef USEWIN32IOAPI
+        zlib_filefunc64_def ffunc;
+#        endif
+
+        strncpy(filename_try, zipfilename,MAXFILENAME-1);
+        /* strncpy doesn't append the trailing NULL, of the string is too long. */
+        filename_try[ MAXFILENAME ] = '\0';
+
+#        ifdef USEWIN32IOAPI
+        fill_win32_filefunc64A(&ffunc);
+        uf = unzOpen2_64(zipfilename,&ffunc);
+#        else
+        uf = unzOpen64(zipfilename);
+#        endif
+        if (uf==NULL)
+        {
+            strcat(filename_try,".zip");
+#            ifdef USEWIN32IOAPI
+            uf = unzOpen2_64(filename_try,&ffunc);
+#            else
+            uf = unzOpen64(filename_try);
+#            endif
+        }
+    }
+
+    if (uf==NULL)
+    {
+        printf("Cannot open %s or %s.zip\n",zipfilename,zipfilename);
+        return 1;
+    }
+    printf("%s opened\n",filename_try);
+
+    if (opt_do_list==1)
+        ret_value = do_list(uf);
+    else if (opt_do_extract==1)
+    {
+#ifdef _WIN32
+        if (opt_extractdir && _chdir(dirname))
+#else
+        if (opt_extractdir && chdir(dirname))
+#endif
+        {
+          printf("Error changing into %s, aborting\n", dirname);
+          exit(-1);
+        }
+
+        if (filename_to_extract == NULL)
+            ret_value = do_extract(uf, opt_do_extract_withoutpath, opt_overwrite, password);
+        else
+            ret_value = do_extract_onefile(uf, filename_to_extract, opt_do_extract_withoutpath, opt_overwrite, password);
+    }
+
+    unzClose(uf);
+
+    return ret_value;
+}
diff --git a/compat/zlib/contrib/minizip/miniunzip.1 b/compat/zlib/contrib/minizip/miniunzip.1
new file mode 100644
index 0000000..111ac69
--- /dev/null
+++ b/compat/zlib/contrib/minizip/miniunzip.1
@@ -0,0 +1,63 @@
+.\"                                      Hey, EMACS: -*- nroff -*-
+.TH miniunzip 1 "Nov 7, 2001"
+.\" Please adjust this date whenever revising the manpage.
+.\"
+.\" Some roff macros, for reference:
+.\" .nh        disable hyphenation
+.\" .hy        enable hyphenation
+.\" .ad l      left justify
+.\" .ad b      justify to both left and right margins
+.\" .nf        disable filling
+.\" .fi        enable filling
+.\" .br        insert line break
+.\" .sp <n>    insert n+1 empty lines
+.\" for manpage-specific macros, see man(7)
+.SH NAME
+miniunzip - uncompress and examine ZIP archives
+.SH SYNOPSIS
+.B miniunzip
+.RI [ -exvlo ]
+zipfile [ files_to_extract ] [-d tempdir]
+.SH DESCRIPTION
+.B minizip
+is a simple tool which allows the extraction of compressed file
+archives in the ZIP format used by the MS-DOS utility PKZIP.  It was
+written as a demonstration of the
+.IR zlib (3)
+library and therefore lack many of the features of the
+.IR unzip (1)
+program.
+.SH OPTIONS
+A number of options are supported.  With the exception of
+.BI \-d\  tempdir
+these must be supplied before any
+other arguments and are:
+.TP
+.BI \-l\ ,\ \-\-v
+List the files in the archive without extracting them.
+.TP
+.B \-o
+Overwrite files without prompting for confirmation.
+.TP
+.B \-x
+Extract files (default).
+.PP
+The
+.I zipfile
+argument is the name of the archive to process. The next argument can be used
+to specify a single file to extract from the archive.
+
+Lastly, the following option can be specified at the end of the command-line:
+.TP
+.BI \-d\  tempdir
+Extract the archive in the directory
+.I tempdir
+rather than the current directory.
+.SH SEE ALSO
+.BR minizip (1),
+.BR zlib (3),
+.BR unzip (1).
+.SH AUTHOR
+This program was written by Gilles Vollant.  This manual page was
+written by Mark Brown <broonie@sirena.org.uk>. The -d tempdir option
+was added by Dirk Eddelbuettel <edd@debian.org>.
diff --git a/compat/zlib/contrib/minizip/minizip.1 b/compat/zlib/contrib/minizip/minizip.1
new file mode 100644
index 0000000..1154484
--- /dev/null
+++ b/compat/zlib/contrib/minizip/minizip.1
@@ -0,0 +1,46 @@
+.\"                                      Hey, EMACS: -*- nroff -*-
+.TH minizip 1 "May 2, 2001"
+.\" Please adjust this date whenever revising the manpage.
+.\"
+.\" Some roff macros, for reference:
+.\" .nh        disable hyphenation
+.\" .hy        enable hyphenation
+.\" .ad l      left justify
+.\" .ad b      justify to both left and right margins
+.\" .nf        disable filling
+.\" .fi        enable filling
+.\" .br        insert line break
+.\" .sp <n>    insert n+1 empty lines
+.\" for manpage-specific macros, see man(7)
+.SH NAME
+minizip - create ZIP archives
+.SH SYNOPSIS
+.B minizip
+.RI [ -o ]
+zipfile [ " files" ... ]
+.SH DESCRIPTION
+.B minizip
+is a simple tool which allows the creation of compressed file archives
+in the ZIP format used by the MS-DOS utility PKZIP.  It was written as
+a demonstration of the
+.IR zlib (3)
+library and therefore lack many of the features of the
+.IR zip (1)
+program.
+.SH OPTIONS
+The first argument supplied is the name of the ZIP archive to create or
+.RI -o
+in which case it is ignored and the second argument treated as the
+name of the ZIP file.  If the ZIP file already exists it will be
+overwritten.
+.PP
+Subsequent arguments specify a list of files to place in the ZIP
+archive.  If none are specified then an empty archive will be created.
+.SH SEE ALSO
+.BR miniunzip (1),
+.BR zlib (3),
+.BR zip (1).
+.SH AUTHOR
+This program was written by Gilles Vollant.  This manual page was
+written by Mark Brown <broonie@sirena.org.uk>.
+
diff --git a/compat/zlib/contrib/minizip/minizip.c b/compat/zlib/contrib/minizip/minizip.c
new file mode 100644
index 0000000..33a0137
--- /dev/null
+++ b/compat/zlib/contrib/minizip/minizip.c
@@ -0,0 +1,556 @@
+/*
+   minizip.c
+   Version 1.1, February 14h, 2010
+   sample part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications of Unzip for Zip64
+         Copyright (C) 2007-2008 Even Rouault
+
+         Modifications for Zip64 support on both zip and unzip
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+*/
+
+
+#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__))
+        #ifndef __USE_FILE_OFFSET64
+                #define __USE_FILE_OFFSET64
+        #endif
+        #ifndef __USE_LARGEFILE64
+                #define __USE_LARGEFILE64
+        #endif
+        #ifndef _LARGEFILE64_SOURCE
+                #define _LARGEFILE64_SOURCE
+        #endif
+        #ifndef _FILE_OFFSET_BIT
+                #define _FILE_OFFSET_BIT 64
+        #endif
+#endif
+
+#if defined(_WIN32)
+#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
+#define FTELLO_FUNC(stream) _ftelli64(stream)
+#define FSEEKO_FUNC(stream, offset, origin) _fseeki64(stream, offset, origin)
+#elif defined(__APPLE__) || defined(IOAPI_NO_64)
+// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
+#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
+#define FTELLO_FUNC(stream) ftello(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin)
+#else
+#define FOPEN_FUNC(filename, mode) fopen64(filename, mode)
+#define FTELLO_FUNC(stream) ftello64(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)
+#endif
+
+#include "tinydir.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <errno.h>
+#include <fcntl.h>
+
+#ifdef _WIN32
+# include <direct.h>
+# include <io.h>
+#else
+# include <unistd.h>
+# include <utime.h>
+# include <sys/types.h>
+# include <sys/stat.h>
+#endif
+
+#include "zip.h"
+
+#ifdef _WIN32
+        #define USEWIN32IOAPI
+        #include "iowin32.h"
+#       if defined(_MSC_VER)
+#           define snprintf _snprintf
+#       endif
+#endif
+
+
+
+#define WRITEBUFFERSIZE (16384)
+#define MAXFILENAME (256)
+
+#ifdef _WIN32
+/* f: name of file to get info on, tmzip: return value: access,
+   modification and creation times, dt: dostime */
+static int filetime(const char *f, tm_zip *tmzip, uLong *dt) {
+  int ret = 0;
+  {
+      FILETIME ftLocal;
+      HANDLE hFind;
+      WIN32_FIND_DATAA ff32;
+
+      hFind = FindFirstFileA(f,&ff32);
+      if (hFind != INVALID_HANDLE_VALUE)
+      {
+        FileTimeToLocalFileTime(&(ff32.ftLastWriteTime),&ftLocal);
+        FileTimeToDosDateTime(&ftLocal,((LPWORD)dt)+1,((LPWORD)dt)+0);
+        FindClose(hFind);
+        ret = 1;
+      }
+  }
+  return ret;
+}
+#else
+#if defined(unix) || defined(__APPLE__)
+/* f: name of file to get info on, tmzip: return value: access,
+   modification and creation times, dt: dostime */
+static int filetime(const char *f, tm_zip *tmzip, uLong *dt) {
+  (void)dt;
+  int ret=0;
+  struct stat s;        /* results of stat() */
+  struct tm* filedate;
+  time_t tm_t=0;
+
+  if (strcmp(f,"-")!=0)
+  {
+    char name[MAXFILENAME+1];
+    size_t len = strlen(f);
+    if (len > MAXFILENAME)
+      len = MAXFILENAME;
+
+    strncpy(name, f,MAXFILENAME-1);
+    /* strncpy doesn't append the trailing NULL, of the string is too long. */
+    name[ MAXFILENAME ] = '\0';
+
+    if (name[len - 1] == '/')
+      name[len - 1] = '\0';
+    /* not all systems allow stat'ing a file with / appended */
+    if (stat(name,&s)==0)
+    {
+      tm_t = s.st_mtime;
+      ret = 1;
+    }
+  }
+  filedate = localtime(&tm_t);
+
+  tmzip->tm_sec  = filedate->tm_sec;
+  tmzip->tm_min  = filedate->tm_min;
+  tmzip->tm_hour = filedate->tm_hour;
+  tmzip->tm_mday = filedate->tm_mday;
+  tmzip->tm_mon  = filedate->tm_mon ;
+  tmzip->tm_year = filedate->tm_year;
+
+  return ret;
+}
+#else
+/* f: name of file to get info on, tmzip: return value: access,
+   modification and creation times, dt: dostime */
+static int filetime(const char *f, tm_zip *tmzip, uLong *dt) {
+    (void)f;
+    (void)tmzip;
+    (void)dt;
+    return 0;
+}
+#endif
+#endif
+
+
+
+
+static int check_exist_file(const char* filename) {
+    FILE* ftestexist;
+    int ret = 1;
+    ftestexist = FOPEN_FUNC(filename,"rb");
+    if (ftestexist==NULL)
+        ret = 0;
+    else
+        fclose(ftestexist);
+    return ret;
+}
+
+static void do_banner(void) {
+    printf("MiniZip 1.1, demo of zLib + MiniZip64 package, written by Gilles Vollant\n");
+    printf("more info on MiniZip at http://www.winimage.com/zLibDll/minizip.html\n\n");
+}
+
+static void do_help(void) {
+    printf("Usage : minizip [-o] [-a] [-0 to -9] [-p password] [-j] file.zip [files_to_add]\n\n" \
+           "  -r  Scan directories recursively\n" \
+           "  -o  Overwrite existing file.zip\n" \
+           "  -a  Append to existing file.zip\n" \
+           "  -0  Store only\n" \
+           "  -1  Compress faster\n" \
+           "  -9  Compress better\n\n" \
+           "  -j  exclude path. store only the file name.\n\n");
+}
+
+/* calculate the CRC32 of a file,
+   because to encrypt a file, we need known the CRC32 of the file before */
+static int getFileCrc(const char* filenameinzip, void* buf, unsigned long size_buf, unsigned long* result_crc) {
+   unsigned long calculate_crc=0;
+   int err=ZIP_OK;
+   FILE * fin = FOPEN_FUNC(filenameinzip,"rb");
+
+   unsigned long size_read = 0;
+   /* unsigned long total_read = 0; */
+   if (fin==NULL)
+   {
+       err = ZIP_ERRNO;
+   }
+
+    if (err == ZIP_OK)
+        do
+        {
+            err = ZIP_OK;
+            size_read = fread(buf,1,size_buf,fin);
+            if (size_read < size_buf)
+                if (feof(fin)==0)
+            {
+                printf("error in reading %s\n",filenameinzip);
+                err = ZIP_ERRNO;
+            }
+
+            if (size_read>0)
+                calculate_crc = crc32_z(calculate_crc,buf,size_read);
+            /* total_read += size_read; */
+
+        } while ((err == ZIP_OK) && (size_read>0));
+
+    if (fin)
+        fclose(fin);
+
+    *result_crc=calculate_crc;
+    printf("file %s crc %lx\n", filenameinzip, calculate_crc);
+    return err;
+}
+
+static int isLargeFile(const char* filename) {
+  int largeFile = 0;
+  ZPOS64_T pos = 0;
+  FILE* pFile = FOPEN_FUNC(filename, "rb");
+
+  if(pFile != NULL)
+  {
+    FSEEKO_FUNC(pFile, 0, SEEK_END);
+    pos = (ZPOS64_T)FTELLO_FUNC(pFile);
+
+                printf("File : %s is %llu bytes\n", filename, pos);
+
+    if(pos >= 0xffffffff)
+     largeFile = 1;
+
+                fclose(pFile);
+  }
+
+ return largeFile;
+}
+
+void addFileToZip(zipFile zf, const char *filenameinzip, const char *password, int opt_exclude_path,int opt_compress_level) {
+    FILE * fin;
+    int size_read;
+    const char *savefilenameinzip;
+    zip_fileinfo zi;
+    unsigned long crcFile=0;
+    int zip64 = 0;
+    int err=0;
+    int size_buf=WRITEBUFFERSIZE;
+    unsigned char buf[WRITEBUFFERSIZE];
+    zi.tmz_date.tm_sec = zi.tmz_date.tm_min = zi.tmz_date.tm_hour =
+    zi.tmz_date.tm_mday = zi.tmz_date.tm_mon = zi.tmz_date.tm_year = 0;
+    zi.dosDate = 0;
+    zi.internal_fa = 0;
+    zi.external_fa = 0;
+    filetime(filenameinzip,&zi.tmz_date,&zi.dosDate);
+
+/*
+    err = zipOpenNewFileInZip(zf,filenameinzip,&zi,
+                     NULL,0,NULL,0,NULL / * comment * /,
+                     (opt_compress_level != 0) ? Z_DEFLATED : 0,
+                     opt_compress_level);
+*/
+    if ((password != NULL) && (err==ZIP_OK))
+        err = getFileCrc(filenameinzip,buf,size_buf,&crcFile);
+
+    zip64 = isLargeFile(filenameinzip);
+
+   /* The path name saved, should not include a leading slash. */
+   /*if it did, windows/xp and dynazip couldn't read the zip file. */
+     savefilenameinzip = filenameinzip;
+     while( savefilenameinzip[0] == '\\' || savefilenameinzip[0] == '/' )
+     {
+         savefilenameinzip++;
+     }
+
+     /*should the zip file contain any path at all?*/
+     if( opt_exclude_path )
+     {
+         const char *tmpptr;
+         const char *lastslash = 0;
+         for( tmpptr = savefilenameinzip; *tmpptr; tmpptr++)
+         {
+             if( *tmpptr == '\\' || *tmpptr == '/')
+             {
+                 lastslash = tmpptr;
+             }
+         }
+         if( lastslash != NULL )
+         {
+             savefilenameinzip = lastslash+1; // base filename follows last slash.
+         }
+     }
+
+     /**/
+    err = zipOpenNewFileInZip3_64(zf,savefilenameinzip,&zi,
+                     NULL,0,NULL,0,NULL /* comment*/,
+                     (opt_compress_level != 0) ? Z_DEFLATED : 0,
+                     opt_compress_level,0,
+                     /* -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, */
+                     -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
+                     password,crcFile, zip64);
+
+    if (err != ZIP_OK)
+        printf("error in opening %s in zipfile\n",filenameinzip);
+    else
+    {
+        fin = FOPEN_FUNC(filenameinzip,"rb");
+        if (fin==NULL)
+        {
+            err=ZIP_ERRNO;
+            printf("error in opening %s for reading\n",filenameinzip);
+        }
+    }
+
+    if (err == ZIP_OK)
+        do
+        {
+            err = ZIP_OK;
+            size_read = (int)fread(buf,1,size_buf,fin);
+            if (size_read < size_buf)
+                if (feof(fin)==0)
+            {
+                printf("error in reading %s\n",filenameinzip);
+                err = ZIP_ERRNO;
+            }
+
+            if (size_read>0)
+            {
+                err = zipWriteInFileInZip (zf,buf,size_read);
+                if (err<0)
+                {
+                    printf("error in writing %s in the zipfile\n",
+                                     filenameinzip);
+                }
+
+            }
+        } while ((err == ZIP_OK) && (size_read>0));
+
+    if (fin)
+        fclose(fin);
+
+    if (err<0)
+        err=ZIP_ERRNO;
+    else
+    {
+        err = zipCloseFileInZip(zf);
+        if (err!=ZIP_OK)
+            printf("error in closing %s in the zipfile\n",
+                        filenameinzip);
+    }
+}
+
+
+void addPathToZip(zipFile zf, const char *filenameinzip, const char *password, int opt_exclude_path,int opt_compress_level) {
+    tinydir_dir dir;
+    int i;
+    char newname[MAXFILENAME+1+MAXFILENAME+1];
+
+    tinydir_open_sorted(&dir, filenameinzip);
+
+    for (i = 0; i < dir.n_files; i++)
+    {
+        tinydir_file file;
+        tinydir_readfile_n(&dir, &file, i);
+        if(strcmp(file.name,".")==0) continue;
+        if(strcmp(file.name,"..")==0) continue;
+        snprintf(newname, sizeof(newname), "%.*s/%.*s", MAXFILENAME, dir.path, MAXFILENAME, file.name);
+        if (file.is_dir)
+        {
+            addPathToZip(zf,newname,password,opt_exclude_path,opt_compress_level);
+        } else {
+            addFileToZip(zf,newname,password,opt_exclude_path,opt_compress_level);
+        }
+    }
+
+    tinydir_close(&dir);
+}
+
+
+int main(int argc, char *argv[]) {
+    int i;
+    int opt_recursive=0;
+    int opt_overwrite=0;
+    int opt_compress_level=Z_DEFAULT_COMPRESSION;
+    int opt_exclude_path=0;
+    int zipfilenamearg = 0;
+    char filename_try[MAXFILENAME+16];
+    int zipok;
+    int err=0;
+    size_t size_buf=0;
+    void* buf=NULL;
+    const char* password=NULL;
+
+
+    do_banner();
+    if (argc==1)
+    {
+        do_help();
+        return 0;
+    }
+    else
+    {
+        for (i=1;i<argc;i++)
+        {
+            if ((*argv[i])=='-')
+            {
+                const char *p=argv[i]+1;
+
+                while ((*p)!='\0')
+                {
+                    char c=*(p++);
+                    if ((c=='o') || (c=='O'))
+                        opt_overwrite = 1;
+                    if ((c=='a') || (c=='A'))
+                        opt_overwrite = 2;
+                    if ((c>='0') && (c<='9'))
+                        opt_compress_level = c-'0';
+                    if ((c=='j') || (c=='J'))
+                        opt_exclude_path = 1;
+                    if ((c=='r') || (c=='R'))
+                        opt_recursive = 1;
+
+                    if (((c=='p') || (c=='P')) && (i+1<argc))
+                    {
+                        password=argv[i+1];
+                        i++;
+                    }
+                }
+            }
+            else
+            {
+                if (zipfilenamearg == 0)
+                {
+                    zipfilenamearg = i ;
+                }
+            }
+        }
+    }
+
+    size_buf = WRITEBUFFERSIZE;
+    buf = (void*)malloc(size_buf);
+    if (buf==NULL)
+    {
+        printf("Error allocating memory\n");
+        return ZIP_INTERNALERROR;
+    }
+
+    if (zipfilenamearg==0)
+    {
+        zipok=0;
+    }
+    else
+    {
+        int i,len;
+        int dot_found=0;
+
+        zipok = 1 ;
+        strncpy(filename_try, argv[zipfilenamearg],MAXFILENAME-1);
+        /* strncpy doesn't append the trailing NULL, of the string is too long. */
+        filename_try[ MAXFILENAME ] = '\0';
+
+        len=(int)strlen(filename_try);
+        for (i=0;i<len;i++)
+            if (filename_try[i]=='.')
+                dot_found=1;
+
+        if (dot_found==0)
+            strcat(filename_try,".zip");
+
+        if (opt_overwrite==2)
+        {
+            /* if the file don't exist, we not append file */
+            if (check_exist_file(filename_try)==0)
+                opt_overwrite=1;
+        }
+        else
+        if (opt_overwrite==0)
+            if (check_exist_file(filename_try)!=0)
+            {
+                char rep=0;
+                do
+                {
+                    char answer[128];
+                    int ret;
+                    printf("The file %s exists. Overwrite ? [y]es, [n]o, [a]ppend : ",filename_try);
+                    ret = scanf("%1s",answer);
+                    if (ret != 1)
+                    {
+                       exit(EXIT_FAILURE);
+                    }
+                    rep = answer[0] ;
+                    if ((rep>='a') && (rep<='z'))
+                        rep -= 0x20;
+                }
+                while ((rep!='Y') && (rep!='N') && (rep!='A'));
+                if (rep=='N')
+                    zipok = 0;
+                if (rep=='A')
+                    opt_overwrite = 2;
+            }
+    }
+
+    if (zipok==1)
+    {
+        zipFile zf;
+        int errclose;
+#        ifdef USEWIN32IOAPI
+        zlib_filefunc64_def ffunc;
+        fill_win32_filefunc64A(&ffunc);
+        zf = zipOpen2_64(filename_try,(opt_overwrite==2) ? 2 : 0,NULL,&ffunc);
+#        else
+        zf = zipOpen64(filename_try,(opt_overwrite==2) ? 2 : 0);
+#        endif
+
+        if (zf == NULL)
+        {
+            printf("error opening %s\n",filename_try);
+            err= ZIP_ERRNO;
+        }
+        else
+            printf("creating %s\n",filename_try);
+
+        for (i=zipfilenamearg+1;(i<argc) && (err==ZIP_OK);i++)
+        {
+            if (!((((*(argv[i]))=='-') || ((*(argv[i]))=='/')) &&
+                  ((argv[i][1]=='o') || (argv[i][1]=='O') ||
+                   (argv[i][1]=='a') || (argv[i][1]=='A') ||
+                   (argv[i][1]=='p') || (argv[i][1]=='P') ||
+                   (argv[i][1]=='r') || (argv[i][1]=='R') ||
+                   ((argv[i][1]>='0') || (argv[i][1]<='9'))) &&
+                  (strlen(argv[i]) == 2)))
+            {
+                if(opt_recursive) {
+                    addPathToZip(zf,argv[i],password,opt_exclude_path,opt_compress_level);
+                } else {
+                    addFileToZip(zf,argv[i],password,opt_exclude_path,opt_compress_level);
+                }
+            }
+        }
+        errclose = zipClose(zf,NULL);
+        if (errclose != ZIP_OK)
+            printf("error in closing %s\n",filename_try);
+    }
+    else
+    {
+       do_help();
+    }
+
+    free(buf);
+    return 0;
+}
diff --git a/compat/zlib/contrib/minizip/minizip.pc.in b/compat/zlib/contrib/minizip/minizip.pc.in
new file mode 100644
index 0000000..69b5b7f
--- /dev/null
+++ b/compat/zlib/contrib/minizip/minizip.pc.in
@@ -0,0 +1,12 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@/minizip
+
+Name: minizip
+Description: Minizip zip file manipulation library
+Requires:
+Version: @PACKAGE_VERSION@
+Libs: -L${libdir} -lminizip
+Libs.private: -lz
+Cflags: -I${includedir}
diff --git a/compat/zlib/contrib/minizip/mztools.c b/compat/zlib/contrib/minizip/mztools.c
new file mode 100644
index 0000000..c8d2375
--- /dev/null
+++ b/compat/zlib/contrib/minizip/mztools.c
@@ -0,0 +1,285 @@
+/*
+  Additional tools for Minizip
+  Code: Xavier Roche '2004
+  License: Same as ZLIB (www.gzip.org)
+*/
+
+/* Code */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "zlib.h"
+#include "unzip.h"
+
+#define READ_8(adr)  ((unsigned char)*(adr))
+#define READ_16(adr) ( READ_8(adr) | (READ_8(adr+1) << 8) )
+#define READ_32(adr) ( READ_16(adr) | (READ_16((adr)+2) << 16) )
+
+#define WRITE_8(buff, n) do { \
+  *((unsigned char*)(buff)) = (unsigned char) ((n) & 0xff); \
+} while(0)
+#define WRITE_16(buff, n) do { \
+  WRITE_8((unsigned char*)(buff), n); \
+  WRITE_8(((unsigned char*)(buff)) + 1, (n) >> 8); \
+} while(0)
+#define WRITE_32(buff, n) do { \
+  WRITE_16((unsigned char*)(buff), (n) & 0xffff); \
+  WRITE_16((unsigned char*)(buff) + 2, (n) >> 16); \
+} while(0)
+
+extern int ZEXPORT unzRepair(const char* file, const char* fileOut, const char* fileOutTmp, uLong* nRecovered, uLong* bytesRecovered) {
+  int err = Z_OK;
+  FILE* fpZip = fopen(file, "rb");
+  FILE* fpOut = fopen(fileOut, "wb");
+  FILE* fpOutCD = fopen(fileOutTmp, "wb");
+  if (fpZip != NULL &&  fpOut != NULL) {
+    int entries = 0;
+    uLong totalBytes = 0;
+    char header[30];
+    char filename[1024];
+    char extra[1024];
+    int offset = 0;
+    int offsetCD = 0;
+    while ( fread(header, 1, 30, fpZip) == 30 ) {
+      int currentOffset = offset;
+
+      /* File entry */
+      if (READ_32(header) == 0x04034b50) {
+        unsigned int version = READ_16(header + 4);
+        unsigned int gpflag = READ_16(header + 6);
+        unsigned int method = READ_16(header + 8);
+        unsigned int filetime = READ_16(header + 10);
+        unsigned int filedate = READ_16(header + 12);
+        unsigned int crc = READ_32(header + 14); /* crc */
+        unsigned int cpsize = READ_32(header + 18); /* compressed size */
+        unsigned int uncpsize = READ_32(header + 22); /* uncompressed sz */
+        unsigned int fnsize = READ_16(header + 26); /* file name length */
+        unsigned int extsize = READ_16(header + 28); /* extra field length */
+        filename[0] = extra[0] = '\0';
+
+        /* Header */
+        if (fwrite(header, 1, 30, fpOut) == 30) {
+          offset += 30;
+        } else {
+          err = Z_ERRNO;
+          break;
+        }
+
+        /* Filename */
+        if (fnsize > 0) {
+          if (fnsize < sizeof(filename)) {
+            if (fread(filename, 1, fnsize, fpZip) == fnsize) {
+                if (fwrite(filename, 1, fnsize, fpOut) == fnsize) {
+                offset += fnsize;
+              } else {
+                err = Z_ERRNO;
+                break;
+              }
+            } else {
+              err = Z_ERRNO;
+              break;
+            }
+          } else {
+            err = Z_ERRNO;
+            break;
+          }
+        } else {
+          err = Z_STREAM_ERROR;
+          break;
+        }
+
+        /* Extra field */
+        if (extsize > 0) {
+          if (extsize < sizeof(extra)) {
+            if (fread(extra, 1, extsize, fpZip) == extsize) {
+              if (fwrite(extra, 1, extsize, fpOut) == extsize) {
+                offset += extsize;
+                } else {
+                err = Z_ERRNO;
+                break;
+              }
+            } else {
+              err = Z_ERRNO;
+              break;
+            }
+          } else {
+            err = Z_ERRNO;
+            break;
+          }
+        }
+
+        /* Data */
+        {
+          int dataSize = cpsize;
+          if (dataSize == 0) {
+            dataSize = uncpsize;
+          }
+          if (dataSize > 0) {
+            char* data = malloc(dataSize);
+            if (data != NULL) {
+              if ((int)fread(data, 1, dataSize, fpZip) == dataSize) {
+                if ((int)fwrite(data, 1, dataSize, fpOut) == dataSize) {
+                  offset += dataSize;
+                  totalBytes += dataSize;
+                } else {
+                  err = Z_ERRNO;
+                }
+              } else {
+                err = Z_ERRNO;
+              }
+              free(data);
+              if (err != Z_OK) {
+                break;
+              }
+            } else {
+              err = Z_MEM_ERROR;
+              break;
+            }
+          }
+        }
+
+        /* Central directory entry */
+        {
+          char header[46];
+          char* comment = "";
+          int comsize = (int) strlen(comment);
+          WRITE_32(header, 0x02014b50);
+          WRITE_16(header + 4, version);
+          WRITE_16(header + 6, version);
+          WRITE_16(header + 8, gpflag);
+          WRITE_16(header + 10, method);
+          WRITE_16(header + 12, filetime);
+          WRITE_16(header + 14, filedate);
+          WRITE_32(header + 16, crc);
+          WRITE_32(header + 20, cpsize);
+          WRITE_32(header + 24, uncpsize);
+          WRITE_16(header + 28, fnsize);
+          WRITE_16(header + 30, extsize);
+          WRITE_16(header + 32, comsize);
+          WRITE_16(header + 34, 0);     /* disk # */
+          WRITE_16(header + 36, 0);     /* int attrb */
+          WRITE_32(header + 38, 0);     /* ext attrb */
+          WRITE_32(header + 42, currentOffset);
+          /* Header */
+          if (fwrite(header, 1, 46, fpOutCD) == 46) {
+            offsetCD += 46;
+
+            /* Filename */
+            if (fnsize > 0) {
+              if (fwrite(filename, 1, fnsize, fpOutCD) == fnsize) {
+                offsetCD += fnsize;
+              } else {
+                err = Z_ERRNO;
+                break;
+              }
+            } else {
+              err = Z_STREAM_ERROR;
+              break;
+            }
+
+            /* Extra field */
+            if (extsize > 0) {
+              if (fwrite(extra, 1, extsize, fpOutCD) == extsize) {
+                offsetCD += extsize;
+              } else {
+                err = Z_ERRNO;
+                break;
+              }
+            }
+
+            /* Comment field */
+            if (comsize > 0) {
+              if ((int)fwrite(comment, 1, comsize, fpOutCD) == comsize) {
+                offsetCD += comsize;
+              } else {
+                err = Z_ERRNO;
+                break;
+              }
+            }
+
+
+          } else {
+            err = Z_ERRNO;
+            break;
+          }
+        }
+
+        /* Success */
+        entries++;
+
+      } else {
+        break;
+      }
+    }
+
+    /* Final central directory  */
+    {
+      int entriesZip = entries;
+      char header[22];
+      char* comment = ""; // "ZIP File recovered by zlib/minizip/mztools";
+      int comsize = (int) strlen(comment);
+      if (entriesZip > 0xffff) {
+        entriesZip = 0xffff;
+      }
+      WRITE_32(header, 0x06054b50);
+      WRITE_16(header + 4, 0);    /* disk # */
+      WRITE_16(header + 6, 0);    /* disk # */
+      WRITE_16(header + 8, entriesZip);   /* hack */
+      WRITE_16(header + 10, entriesZip);  /* hack */
+      WRITE_32(header + 12, offsetCD);    /* size of CD */
+      WRITE_32(header + 16, offset);      /* offset to CD */
+      WRITE_16(header + 20, comsize);     /* comment */
+
+      /* Header */
+      if (fwrite(header, 1, 22, fpOutCD) == 22) {
+
+        /* Comment field */
+        if (comsize > 0) {
+          if ((int)fwrite(comment, 1, comsize, fpOutCD) != comsize) {
+            err = Z_ERRNO;
+          }
+        }
+
+      } else {
+        err = Z_ERRNO;
+      }
+    }
+
+    /* Final merge (file + central directory) */
+    fclose(fpOutCD);
+    if (err == Z_OK) {
+      fpOutCD = fopen(fileOutTmp, "rb");
+      if (fpOutCD != NULL) {
+        int nRead;
+        char buffer[8192];
+        while ( (nRead = (int)fread(buffer, 1, sizeof(buffer), fpOutCD)) > 0) {
+          if ((int)fwrite(buffer, 1, nRead, fpOut) != nRead) {
+            err = Z_ERRNO;
+            break;
+          }
+        }
+        fclose(fpOutCD);
+      }
+    }
+
+    /* Close */
+    fclose(fpZip);
+    fclose(fpOut);
+
+    /* Wipe temporary file */
+    (void)remove(fileOutTmp);
+
+    /* Number of recovered entries */
+    if (err == Z_OK) {
+      if (nRecovered != NULL) {
+        *nRecovered = entries;
+      }
+      if (bytesRecovered != NULL) {
+        *bytesRecovered = totalBytes;
+      }
+    }
+  } else {
+    err = Z_STREAM_ERROR;
+  }
+  return err;
+}
diff --git a/compat/zlib/contrib/minizip/mztools.h b/compat/zlib/contrib/minizip/mztools.h
new file mode 100644
index 0000000..a49a426
--- /dev/null
+++ b/compat/zlib/contrib/minizip/mztools.h
@@ -0,0 +1,37 @@
+/*
+  Additional tools for Minizip
+  Code: Xavier Roche '2004
+  License: Same as ZLIB (www.gzip.org)
+*/
+
+#ifndef _zip_tools_H
+#define _zip_tools_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef _ZLIB_H
+#include "zlib.h"
+#endif
+
+#include "unzip.h"
+
+/* Repair a ZIP file (missing central directory)
+   file: file to recover
+   fileOut: output file after recovery
+   fileOutTmp: temporary file name used for recovery
+*/
+extern int ZEXPORT unzRepair(const char* file,
+                             const char* fileOut,
+                             const char* fileOutTmp,
+                             uLong* nRecovered,
+                             uLong* bytesRecovered);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif
diff --git a/compat/zlib/contrib/minizip/tinydir.h b/compat/zlib/contrib/minizip/tinydir.h
new file mode 100644
index 0000000..b8133ac
--- /dev/null
+++ b/compat/zlib/contrib/minizip/tinydir.h
@@ -0,0 +1,832 @@
+/*
+Copyright (c) 2013-2021, tinydir authors:
+- Cong Xu
+- Lautis Sun
+- Baudouin Feildel
+- Andargor <andargor@yahoo.com>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+#ifndef TINYDIR_H
+#define TINYDIR_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if ((defined _UNICODE) && !(defined UNICODE))
+#define UNICODE
+#endif
+
+#if ((defined UNICODE) && !(defined _UNICODE))
+#define _UNICODE
+#endif
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#ifdef _MSC_VER
+# ifndef WIN32_LEAN_AND_MEAN
+#  define WIN32_LEAN_AND_MEAN
+# endif
+# include <windows.h>
+# include <tchar.h>
+# pragma warning(push)
+# pragma warning (disable : 4996)
+#else
+# include <dirent.h>
+# include <libgen.h>
+# include <sys/stat.h>
+# include <stddef.h>
+#endif
+#ifdef __MINGW32__
+# include <tchar.h>
+#endif
+
+
+/* types */
+
+/* Windows UNICODE wide character support */
+#if defined _MSC_VER || defined __MINGW32__
+# define _tinydir_char_t TCHAR
+# define TINYDIR_STRING(s) _TEXT(s)
+# define _tinydir_strlen _tcslen
+# define _tinydir_strcpy _tcscpy
+# define _tinydir_strcat _tcscat
+# define _tinydir_strcmp _tcscmp
+# define _tinydir_strrchr _tcsrchr
+# define _tinydir_strncmp _tcsncmp
+#else
+# define _tinydir_char_t char
+# define TINYDIR_STRING(s) s
+# define _tinydir_strlen strlen
+# define _tinydir_strcpy strcpy
+# define _tinydir_strcat strcat
+# define _tinydir_strcmp strcmp
+# define _tinydir_strrchr strrchr
+# define _tinydir_strncmp strncmp
+#endif
+
+#if (defined _MSC_VER || defined __MINGW32__)
+# include <windows.h>
+# define _TINYDIR_PATH_MAX MAX_PATH
+#elif defined  __linux__
+# include <limits.h>
+# ifdef PATH_MAX
+#  define _TINYDIR_PATH_MAX PATH_MAX
+# endif
+#elif defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
+# include <sys/param.h>
+# if defined(BSD)
+#  include <limits.h>
+#  ifdef PATH_MAX
+#   define _TINYDIR_PATH_MAX PATH_MAX
+#  endif
+# endif
+#endif
+
+#ifndef _TINYDIR_PATH_MAX
+#define _TINYDIR_PATH_MAX 4096
+#endif
+
+#ifdef _MSC_VER
+/* extra chars for the "\\*" mask */
+# define _TINYDIR_PATH_EXTRA 2
+#else
+# define _TINYDIR_PATH_EXTRA 0
+#endif
+
+#define _TINYDIR_FILENAME_MAX 256
+
+#if (defined _MSC_VER || defined __MINGW32__)
+#define _TINYDIR_DRIVE_MAX 3
+#endif
+
+#ifdef _MSC_VER
+# define _TINYDIR_FUNC static __inline
+#elif !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
+# define _TINYDIR_FUNC static __inline__
+#elif defined(__cplusplus)
+# define _TINYDIR_FUNC static inline
+#elif defined(__GNUC__)
+/* Suppress unused function warning */
+# define _TINYDIR_FUNC __attribute__((unused)) static
+#else
+# define _TINYDIR_FUNC static
+#endif
+
+/* readdir_r usage; define TINYDIR_USE_READDIR_R to use it (if supported) */
+#ifdef TINYDIR_USE_READDIR_R
+
+/* readdir_r is a POSIX-only function, and may not be available under various
+ * environments/settings, e.g. MinGW. Use readdir fallback */
+#if _POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _BSD_SOURCE || _SVID_SOURCE ||\
+	_POSIX_SOURCE
+# define _TINYDIR_HAS_READDIR_R
+#endif
+#if _POSIX_C_SOURCE >= 200112L
+# define _TINYDIR_HAS_FPATHCONF
+# include <unistd.h>
+#endif
+#if _BSD_SOURCE || _SVID_SOURCE || \
+	(_POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700)
+# define _TINYDIR_HAS_DIRFD
+# include <sys/types.h>
+#endif
+#if defined _TINYDIR_HAS_FPATHCONF && defined _TINYDIR_HAS_DIRFD &&\
+	defined _PC_NAME_MAX
+# define _TINYDIR_USE_FPATHCONF
+#endif
+#if defined __MINGW32__ || !defined _TINYDIR_HAS_READDIR_R ||\
+	!(defined _TINYDIR_USE_FPATHCONF || defined NAME_MAX)
+# define _TINYDIR_USE_READDIR
+#endif
+
+/* Use readdir by default */
+#else
+# define _TINYDIR_USE_READDIR
+#endif
+
+/* MINGW32 has two versions of dirent, ASCII and UNICODE*/
+#ifndef _MSC_VER
+#if (defined __MINGW32__) && (defined _UNICODE)
+#define _TINYDIR_DIR _WDIR
+#define _tinydir_dirent _wdirent
+#define _tinydir_opendir _wopendir
+#define _tinydir_readdir _wreaddir
+#define _tinydir_closedir _wclosedir
+#else
+#define _TINYDIR_DIR DIR
+#define _tinydir_dirent dirent
+#define _tinydir_opendir opendir
+#define _tinydir_readdir readdir
+#define _tinydir_closedir closedir
+#endif
+#endif
+
+/* Allow user to use a custom allocator by defining _TINYDIR_MALLOC and _TINYDIR_FREE. */
+#if    defined(_TINYDIR_MALLOC) &&  defined(_TINYDIR_FREE)
+#elif !defined(_TINYDIR_MALLOC) && !defined(_TINYDIR_FREE)
+#else
+#error "Either define both alloc and free or none of them!"
+#endif
+
+#if !defined(_TINYDIR_MALLOC)
+	#define _TINYDIR_MALLOC(_size) malloc(_size)
+	#define _TINYDIR_FREE(_ptr)    free(_ptr)
+#endif /* !defined(_TINYDIR_MALLOC) */
+
+typedef struct tinydir_file
+{
+	_tinydir_char_t path[_TINYDIR_PATH_MAX];
+	_tinydir_char_t name[_TINYDIR_FILENAME_MAX];
+	_tinydir_char_t *extension;
+	int is_dir;
+	int is_reg;
+
+#ifndef _MSC_VER
+#ifdef __MINGW32__
+	struct _stat _s;
+#else
+	struct stat _s;
+#endif
+#endif
+} tinydir_file;
+
+typedef struct tinydir_dir
+{
+	_tinydir_char_t path[_TINYDIR_PATH_MAX];
+	int has_next;
+	size_t n_files;
+
+	tinydir_file *_files;
+#ifdef _MSC_VER
+	HANDLE _h;
+	WIN32_FIND_DATA _f;
+#else
+	_TINYDIR_DIR *_d;
+	struct _tinydir_dirent *_e;
+#ifndef _TINYDIR_USE_READDIR
+	struct _tinydir_dirent *_ep;
+#endif
+#endif
+} tinydir_dir;
+
+
+/* declarations */
+
+_TINYDIR_FUNC
+int tinydir_open(tinydir_dir *dir, const _tinydir_char_t *path);
+_TINYDIR_FUNC
+int tinydir_open_sorted(tinydir_dir *dir, const _tinydir_char_t *path);
+_TINYDIR_FUNC
+void tinydir_close(tinydir_dir *dir);
+
+_TINYDIR_FUNC
+int tinydir_next(tinydir_dir *dir);
+_TINYDIR_FUNC
+int tinydir_readfile(const tinydir_dir *dir, tinydir_file *file);
+_TINYDIR_FUNC
+int tinydir_readfile_n(const tinydir_dir *dir, tinydir_file *file, size_t i);
+_TINYDIR_FUNC
+int tinydir_open_subdir_n(tinydir_dir *dir, size_t i);
+
+_TINYDIR_FUNC
+int tinydir_file_open(tinydir_file *file, const _tinydir_char_t *path);
+_TINYDIR_FUNC
+void _tinydir_get_ext(tinydir_file *file);
+_TINYDIR_FUNC
+int _tinydir_file_cmp(const void *a, const void *b);
+#ifndef _MSC_VER
+#ifndef _TINYDIR_USE_READDIR
+_TINYDIR_FUNC
+size_t _tinydir_dirent_buf_size(_TINYDIR_DIR *dirp);
+#endif
+#endif
+
+
+/* definitions*/
+
+_TINYDIR_FUNC
+int tinydir_open(tinydir_dir *dir, const _tinydir_char_t *path)
+{
+#ifndef _MSC_VER
+#ifndef _TINYDIR_USE_READDIR
+	int error;
+	int size;	/* using int size */
+#endif
+#else
+	_tinydir_char_t path_buf[_TINYDIR_PATH_MAX];
+#endif
+	_tinydir_char_t *pathp;
+
+	if (dir == NULL || path == NULL || _tinydir_strlen(path) == 0)
+	{
+		errno = EINVAL;
+		return -1;
+	}
+	if (_tinydir_strlen(path) + _TINYDIR_PATH_EXTRA >= _TINYDIR_PATH_MAX)
+	{
+		errno = ENAMETOOLONG;
+		return -1;
+	}
+
+	/* initialise dir */
+	dir->_files = NULL;
+#ifdef _MSC_VER
+	dir->_h = INVALID_HANDLE_VALUE;
+#else
+	dir->_d = NULL;
+#ifndef _TINYDIR_USE_READDIR
+	dir->_ep = NULL;
+#endif
+#endif
+	tinydir_close(dir);
+
+	_tinydir_strcpy(dir->path, path);
+	/* Remove trailing slashes */
+	pathp = &dir->path[_tinydir_strlen(dir->path) - 1];
+	while (pathp != dir->path && (*pathp == TINYDIR_STRING('\\') || *pathp == TINYDIR_STRING('/')))
+	{
+		*pathp = TINYDIR_STRING('\0');
+		pathp++;
+	}
+#ifdef _MSC_VER
+	_tinydir_strcpy(path_buf, dir->path);
+	_tinydir_strcat(path_buf, TINYDIR_STRING("\\*"));
+#if (defined WINAPI_FAMILY) && (WINAPI_FAMILY != WINAPI_FAMILY_DESKTOP_APP)
+	dir->_h = FindFirstFileEx(path_buf, FindExInfoStandard, &dir->_f, FindExSearchNameMatch, NULL, 0);
+#else
+	dir->_h = FindFirstFile(path_buf, &dir->_f);
+#endif
+	if (dir->_h == INVALID_HANDLE_VALUE)
+	{
+		errno = ENOENT;
+#else
+	dir->_d = _tinydir_opendir(path);
+	if (dir->_d == NULL)
+	{
+#endif
+		goto bail;
+	}
+
+	/* read first file */
+	dir->has_next = 1;
+#ifndef _MSC_VER
+#ifdef _TINYDIR_USE_READDIR
+	dir->_e = _tinydir_readdir(dir->_d);
+#else
+	/* allocate dirent buffer for readdir_r */
+	size = _tinydir_dirent_buf_size(dir->_d); /* conversion to int */
+	if (size == -1) return -1;
+	dir->_ep = (struct _tinydir_dirent*)_TINYDIR_MALLOC(size);
+	if (dir->_ep == NULL) return -1;
+
+	error = readdir_r(dir->_d, dir->_ep, &dir->_e);
+	if (error != 0) return -1;
+#endif
+	if (dir->_e == NULL)
+	{
+		dir->has_next = 0;
+	}
+#endif
+
+	return 0;
+
+bail:
+	tinydir_close(dir);
+	return -1;
+}
+
+_TINYDIR_FUNC
+int tinydir_open_sorted(tinydir_dir *dir, const _tinydir_char_t *path)
+{
+	/* Count the number of files first, to pre-allocate the files array */
+	size_t n_files = 0;
+	if (tinydir_open(dir, path) == -1)
+	{
+		return -1;
+	}
+	while (dir->has_next)
+	{
+		n_files++;
+		if (tinydir_next(dir) == -1)
+		{
+			goto bail;
+		}
+	}
+	tinydir_close(dir);
+
+	if (n_files == 0 || tinydir_open(dir, path) == -1)
+	{
+		return -1;
+	}
+
+	dir->n_files = 0;
+	dir->_files = (tinydir_file *)_TINYDIR_MALLOC(sizeof *dir->_files * n_files);
+	if (dir->_files == NULL)
+	{
+		goto bail;
+	}
+	while (dir->has_next)
+	{
+		tinydir_file *p_file;
+		dir->n_files++;
+
+		p_file = &dir->_files[dir->n_files - 1];
+		if (tinydir_readfile(dir, p_file) == -1)
+		{
+			goto bail;
+		}
+
+		if (tinydir_next(dir) == -1)
+		{
+			goto bail;
+		}
+
+		/* Just in case the number of files has changed between the first and
+		second reads, terminate without writing into unallocated memory */
+		if (dir->n_files == n_files)
+		{
+			break;
+		}
+	}
+
+	qsort(dir->_files, dir->n_files, sizeof(tinydir_file), _tinydir_file_cmp);
+
+	return 0;
+
+bail:
+	tinydir_close(dir);
+	return -1;
+}
+
+_TINYDIR_FUNC
+void tinydir_close(tinydir_dir *dir)
+{
+	if (dir == NULL)
+	{
+		return;
+	}
+
+	memset(dir->path, 0, sizeof(dir->path));
+	dir->has_next = 0;
+	dir->n_files = 0;
+	_TINYDIR_FREE(dir->_files);
+	dir->_files = NULL;
+#ifdef _MSC_VER
+	if (dir->_h != INVALID_HANDLE_VALUE)
+	{
+		FindClose(dir->_h);
+	}
+	dir->_h = INVALID_HANDLE_VALUE;
+#else
+	if (dir->_d)
+	{
+		_tinydir_closedir(dir->_d);
+	}
+	dir->_d = NULL;
+	dir->_e = NULL;
+#ifndef _TINYDIR_USE_READDIR
+	_TINYDIR_FREE(dir->_ep);
+	dir->_ep = NULL;
+#endif
+#endif
+}
+
+_TINYDIR_FUNC
+int tinydir_next(tinydir_dir *dir)
+{
+	if (dir == NULL)
+	{
+		errno = EINVAL;
+		return -1;
+	}
+	if (!dir->has_next)
+	{
+		errno = ENOENT;
+		return -1;
+	}
+
+#ifdef _MSC_VER
+	if (FindNextFile(dir->_h, &dir->_f) == 0)
+#else
+#ifdef _TINYDIR_USE_READDIR
+	dir->_e = _tinydir_readdir(dir->_d);
+#else
+	if (dir->_ep == NULL)
+	{
+		return -1;
+	}
+	if (readdir_r(dir->_d, dir->_ep, &dir->_e) != 0)
+	{
+		return -1;
+	}
+#endif
+	if (dir->_e == NULL)
+#endif
+	{
+		dir->has_next = 0;
+#ifdef _MSC_VER
+		if (GetLastError() != ERROR_SUCCESS &&
+			GetLastError() != ERROR_NO_MORE_FILES)
+		{
+			tinydir_close(dir);
+			errno = EIO;
+			return -1;
+		}
+#endif
+	}
+
+	return 0;
+}
+
+_TINYDIR_FUNC
+int tinydir_readfile(const tinydir_dir *dir, tinydir_file *file)
+{
+	const _tinydir_char_t *filename;
+	if (dir == NULL || file == NULL)
+	{
+		errno = EINVAL;
+		return -1;
+	}
+#ifdef _MSC_VER
+	if (dir->_h == INVALID_HANDLE_VALUE)
+#else
+	if (dir->_e == NULL)
+#endif
+	{
+		errno = ENOENT;
+		return -1;
+	}
+	filename =
+#ifdef _MSC_VER
+		dir->_f.cFileName;
+#else
+		dir->_e->d_name;
+#endif
+	if (_tinydir_strlen(dir->path) +
+		_tinydir_strlen(filename) + 1 + _TINYDIR_PATH_EXTRA >=
+		_TINYDIR_PATH_MAX)
+	{
+		/* the path for the file will be too long */
+		errno = ENAMETOOLONG;
+		return -1;
+	}
+	if (_tinydir_strlen(filename) >= _TINYDIR_FILENAME_MAX)
+	{
+		errno = ENAMETOOLONG;
+		return -1;
+	}
+
+	_tinydir_strcpy(file->path, dir->path);
+	if (_tinydir_strcmp(dir->path, TINYDIR_STRING("/")) != 0)
+		_tinydir_strcat(file->path, TINYDIR_STRING("/"));
+	_tinydir_strcpy(file->name, filename);
+	_tinydir_strcat(file->path, filename);
+#ifndef _MSC_VER
+#ifdef __MINGW32__
+	if (_tstat(
+#else
+	if (stat(
+#endif
+		file->path, &file->_s) == -1)
+	{
+		return -1;
+	}
+#endif
+	_tinydir_get_ext(file);
+
+	file->is_dir =
+#ifdef _MSC_VER
+		!!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
+#else
+		S_ISDIR(file->_s.st_mode);
+#endif
+	file->is_reg =
+#ifdef _MSC_VER
+		!!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_NORMAL) ||
+		(
+			!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_DEVICE) &&
+			!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) &&
+			!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_ENCRYPTED) &&
+#ifdef FILE_ATTRIBUTE_INTEGRITY_STREAM
+			!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_INTEGRITY_STREAM) &&
+#endif
+#ifdef FILE_ATTRIBUTE_NO_SCRUB_DATA
+			!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_NO_SCRUB_DATA) &&
+#endif
+			!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_OFFLINE) &&
+			!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_TEMPORARY));
+#else
+		S_ISREG(file->_s.st_mode);
+#endif
+
+	return 0;
+}
+
+_TINYDIR_FUNC
+int tinydir_readfile_n(const tinydir_dir *dir, tinydir_file *file, size_t i)
+{
+	if (dir == NULL || file == NULL)
+	{
+		errno = EINVAL;
+		return -1;
+	}
+	if (i >= dir->n_files)
+	{
+		errno = ENOENT;
+		return -1;
+	}
+
+	memcpy(file, &dir->_files[i], sizeof(tinydir_file));
+	_tinydir_get_ext(file);
+
+	return 0;
+}
+
+_TINYDIR_FUNC
+int tinydir_open_subdir_n(tinydir_dir *dir, size_t i)
+{
+	_tinydir_char_t path[_TINYDIR_PATH_MAX];
+	if (dir == NULL)
+	{
+		errno = EINVAL;
+		return -1;
+	}
+	if (i >= dir->n_files || !dir->_files[i].is_dir)
+	{
+		errno = ENOENT;
+		return -1;
+	}
+
+	_tinydir_strcpy(path, dir->_files[i].path);
+	tinydir_close(dir);
+	if (tinydir_open_sorted(dir, path) == -1)
+	{
+		return -1;
+	}
+
+	return 0;
+}
+
+/* Open a single file given its path */
+_TINYDIR_FUNC
+int tinydir_file_open(tinydir_file *file, const _tinydir_char_t *path)
+{
+	tinydir_dir dir;
+	int result = 0;
+	int found = 0;
+	_tinydir_char_t dir_name_buf[_TINYDIR_PATH_MAX];
+	_tinydir_char_t file_name_buf[_TINYDIR_FILENAME_MAX];
+	_tinydir_char_t *dir_name;
+	_tinydir_char_t *base_name;
+#if (defined _MSC_VER || defined __MINGW32__)
+	_tinydir_char_t drive_buf[_TINYDIR_PATH_MAX];
+	_tinydir_char_t ext_buf[_TINYDIR_FILENAME_MAX];
+#endif
+
+	if (file == NULL || path == NULL || _tinydir_strlen(path) == 0)
+	{
+		errno = EINVAL;
+		return -1;
+	}
+	if (_tinydir_strlen(path) + _TINYDIR_PATH_EXTRA >= _TINYDIR_PATH_MAX)
+	{
+		errno = ENAMETOOLONG;
+		return -1;
+	}
+
+	/* Get the parent path */
+#if (defined _MSC_VER || defined __MINGW32__)
+#if ((defined _MSC_VER) && (_MSC_VER >= 1400))
+	errno = _tsplitpath_s(
+		path,
+		drive_buf, _TINYDIR_DRIVE_MAX,
+		dir_name_buf, _TINYDIR_FILENAME_MAX,
+		file_name_buf, _TINYDIR_FILENAME_MAX,
+		ext_buf, _TINYDIR_FILENAME_MAX);
+#else
+	_tsplitpath(
+		path,
+		drive_buf,
+		dir_name_buf,
+		file_name_buf,
+		ext_buf);
+#endif
+
+	if (errno)
+	{
+		return -1;
+	}
+
+/* _splitpath_s not work fine with only filename and widechar support */
+#ifdef _UNICODE
+	if (drive_buf[0] == L'\xFEFE')
+		drive_buf[0] = '\0';
+	if (dir_name_buf[0] == L'\xFEFE')
+		dir_name_buf[0] = '\0';
+#endif
+
+	/* Emulate the behavior of dirname by returning "." for dir name if it's
+	empty */
+	if (drive_buf[0] == '\0' && dir_name_buf[0] == '\0')
+	{
+		_tinydir_strcpy(dir_name_buf, TINYDIR_STRING("."));
+	}
+	/* Concatenate the drive letter and dir name to form full dir name */
+	_tinydir_strcat(drive_buf, dir_name_buf);
+	dir_name = drive_buf;
+	/* Concatenate the file name and extension to form base name */
+	_tinydir_strcat(file_name_buf, ext_buf);
+	base_name = file_name_buf;
+#else
+	_tinydir_strcpy(dir_name_buf, path);
+	dir_name = dirname(dir_name_buf);
+	_tinydir_strcpy(file_name_buf, path);
+	base_name = basename(file_name_buf);
+#endif
+
+	/* Special case: if the path is a root dir, open the parent dir as the file */
+#if (defined _MSC_VER || defined __MINGW32__)
+	if (_tinydir_strlen(base_name) == 0)
+#else
+	if ((_tinydir_strcmp(base_name, TINYDIR_STRING("/"))) == 0)
+#endif
+	{
+		memset(file, 0, sizeof * file);
+		file->is_dir = 1;
+		file->is_reg = 0;
+		_tinydir_strcpy(file->path, dir_name);
+		file->extension = file->path + _tinydir_strlen(file->path);
+		return 0;
+	}
+
+	/* Open the parent directory */
+	if (tinydir_open(&dir, dir_name) == -1)
+	{
+		return -1;
+	}
+
+	/* Read through the parent directory and look for the file */
+	while (dir.has_next)
+	{
+		if (tinydir_readfile(&dir, file) == -1)
+		{
+			result = -1;
+			goto bail;
+		}
+		if (_tinydir_strcmp(file->name, base_name) == 0)
+		{
+			/* File found */
+			found = 1;
+			break;
+		}
+		tinydir_next(&dir);
+	}
+	if (!found)
+	{
+		result = -1;
+		errno = ENOENT;
+	}
+
+bail:
+	tinydir_close(&dir);
+	return result;
+}
+
+_TINYDIR_FUNC
+void _tinydir_get_ext(tinydir_file *file)
+{
+	_tinydir_char_t *period = _tinydir_strrchr(file->name, TINYDIR_STRING('.'));
+	if (period == NULL)
+	{
+		file->extension = &(file->name[_tinydir_strlen(file->name)]);
+	}
+	else
+	{
+		file->extension = period + 1;
+	}
+}
+
+_TINYDIR_FUNC
+int _tinydir_file_cmp(const void *a, const void *b)
+{
+	const tinydir_file *fa = (const tinydir_file *)a;
+	const tinydir_file *fb = (const tinydir_file *)b;
+	if (fa->is_dir != fb->is_dir)
+	{
+		return -(fa->is_dir - fb->is_dir);
+	}
+	return _tinydir_strncmp(fa->name, fb->name, _TINYDIR_FILENAME_MAX);
+}
+
+#ifndef _MSC_VER
+#ifndef _TINYDIR_USE_READDIR
+/*
+The following authored by Ben Hutchings <ben@decadent.org.uk>
+from https://womble.decadent.org.uk/readdir_r-advisory.html
+*/
+/* Calculate the required buffer size (in bytes) for directory      *
+* entries read from the given directory handle.  Return -1 if this  *
+* this cannot be done.                                              *
+*                                                                   *
+* This code does not trust values of NAME_MAX that are less than    *
+* 255, since some systems (including at least HP-UX) incorrectly    *
+* define it to be a smaller value.                                  */
+_TINYDIR_FUNC
+size_t _tinydir_dirent_buf_size(_TINYDIR_DIR *dirp)
+{
+	long name_max;
+	size_t name_end;
+	/* parameter may be unused */
+	(void)dirp;
+
+#if defined _TINYDIR_USE_FPATHCONF
+	name_max = fpathconf(dirfd(dirp), _PC_NAME_MAX);
+	if (name_max == -1)
+#if defined(NAME_MAX)
+		name_max = (NAME_MAX > 255) ? NAME_MAX : 255;
+#else
+		return (size_t)(-1);
+#endif
+#elif defined(NAME_MAX)
+ 	name_max = (NAME_MAX > 255) ? NAME_MAX : 255;
+#else
+#error "buffer size for readdir_r cannot be determined"
+#endif
+	name_end = (size_t)offsetof(struct _tinydir_dirent, d_name) + name_max + 1;
+	return (name_end > sizeof(struct _tinydir_dirent) ?
+		name_end : sizeof(struct _tinydir_dirent));
+}
+#endif
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+# if defined (_MSC_VER)
+# pragma warning(pop)
+# endif
+
+#endif
diff --git a/compat/zlib/contrib/minizip/unzip.c b/compat/zlib/contrib/minizip/unzip.c
new file mode 100644
index 0000000..ea05b7d
--- /dev/null
+++ b/compat/zlib/contrib/minizip/unzip.c
@@ -0,0 +1,1985 @@
+/* unzip.c -- IO for uncompress .zip files using zlib
+   Version 1.1, February 14h, 2010
+   part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications of Unzip for Zip64
+         Copyright (C) 2007-2008 Even Rouault
+
+         Modifications for Zip64 support on both zip and unzip
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+         For more info read MiniZip_info.txt
+
+
+  ------------------------------------------------------------------------------------
+  Decryption code comes from crypt.c by Info-ZIP but has been greatly reduced in terms of
+  compatibility with older software. The following is from the original crypt.c.
+  Code woven in by Terry Thorsen 1/2003.
+
+  Copyright (c) 1990-2000 Info-ZIP.  All rights reserved.
+
+  See the accompanying file LICENSE, version 2000-Apr-09 or later
+  (the contents of which are also included in zip.h) for terms of use.
+  If, for some reason, all these files are missing, the Info-ZIP license
+  also may be found at:  ftp://ftp.info-zip.org/pub/infozip/license.html
+
+        crypt.c (full version) by Info-ZIP.      Last revised:  [see crypt.h]
+
+  The encryption/decryption parts of this source code (as opposed to the
+  non-echoing password parts) were originally written in Europe.  The
+  whole source package can be freely distributed, including from the USA.
+  (Prior to January 2000, re-export from the US was a violation of US law.)
+
+        This encryption code is a direct transcription of the algorithm from
+  Roger Schlafly, described by Phil Katz in the file appnote.txt.  This
+  file (appnote.txt) is distributed with the PKZIP program (even in the
+  version without encryption capabilities).
+
+        ------------------------------------------------------------------------------------
+
+        Changes in unzip.c
+
+        2007-2008 - Even Rouault - Addition of cpl_unzGetCurrentFileZStreamPos
+  2007-2008 - Even Rouault - Decoration of symbol names unz* -> cpl_unz*
+  2007-2008 - Even Rouault - Remove old C style function prototypes
+  2007-2008 - Even Rouault - Add unzip support for ZIP64
+
+        Copyright (C) 2007-2008 Even Rouault
+
+
+  Oct-2009 - Mathias Svensson - Removed cpl_* from symbol names (Even Rouault added them but since this is now moved to a new project (minizip64) I renamed them again).
+  Oct-2009 - Mathias Svensson - Fixed problem if uncompressed size was > 4G and compressed size was <4G
+                                should only read the compressed/uncompressed size from the Zip64 format if
+                                the size from normal header was 0xFFFFFFFF
+  Oct-2009 - Mathias Svensson - Applied some bug fixes from patches received from Gilles Vollant
+  Oct-2009 - Mathias Svensson - Applied support to unzip files with compression method BZIP2 (bzip2 lib is required)
+                                Patch created by Daniel Borca
+
+  Jan-2010 - back to unzip and minizip 1.0 name scheme, with compatibility layer
+
+  Copyright (C) 1998 - 2010 Gilles Vollant, Even Rouault, Mathias Svensson
+
+*/
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifndef NOUNCRYPT
+        #define NOUNCRYPT
+#endif
+
+#include "zlib.h"
+#include "unzip.h"
+
+#ifdef STDC
+#  include <stddef.h>
+#endif
+#ifdef NO_ERRNO_H
+    extern int errno;
+#else
+#   include <errno.h>
+#endif
+
+
+#ifndef local
+#  define local static
+#endif
+/* compile with -Dlocal if your debugger can't find static symbols */
+
+
+#ifndef CASESENSITIVITYDEFAULT_NO
+#  if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES)
+#    define CASESENSITIVITYDEFAULT_NO
+#  endif
+#endif
+
+
+#ifndef UNZ_BUFSIZE
+#define UNZ_BUFSIZE (16384)
+#endif
+
+#ifndef UNZ_MAXFILENAMEINZIP
+#define UNZ_MAXFILENAMEINZIP (256)
+#endif
+
+#ifndef ALLOC
+# define ALLOC(size) (malloc(size))
+#endif
+
+#define SIZECENTRALDIRITEM (0x2e)
+#define SIZEZIPLOCALHEADER (0x1e)
+
+
+const char unz_copyright[] =
+   " unzip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll";
+
+/* unz_file_info64_internal contain internal info about a file in zipfile*/
+typedef struct unz_file_info64_internal_s
+{
+    ZPOS64_T offset_curfile;/* relative offset of local header 8 bytes */
+} unz_file_info64_internal;
+
+
+/* file_in_zip_read_info_s contain internal information about a file in zipfile,
+    when reading and decompress it */
+typedef struct
+{
+    char  *read_buffer;         /* internal buffer for compressed data */
+    z_stream stream;            /* zLib stream structure for inflate */
+
+#ifdef HAVE_BZIP2
+    bz_stream bstream;          /* bzLib stream structure for bziped */
+#endif
+
+    ZPOS64_T pos_in_zipfile;       /* position in byte on the zipfile, for fseek*/
+    uLong stream_initialised;   /* flag set if stream structure is initialised*/
+
+    ZPOS64_T offset_local_extrafield;/* offset of the local extra field */
+    uInt  size_local_extrafield;/* size of the local extra field */
+    ZPOS64_T pos_local_extrafield;   /* position in the local extra field in read*/
+    ZPOS64_T total_out_64;
+
+    uLong crc32;                /* crc32 of all data uncompressed */
+    uLong crc32_wait;           /* crc32 we must obtain after decompress all */
+    ZPOS64_T rest_read_compressed; /* number of byte to be decompressed */
+    ZPOS64_T rest_read_uncompressed;/*number of byte to be obtained after decomp*/
+    zlib_filefunc64_32_def z_filefunc;
+    voidpf filestream;        /* io structure of the zipfile */
+    uLong compression_method;   /* compression method (0==store) */
+    ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
+    int   raw;
+} file_in_zip64_read_info_s;
+
+
+/* unz64_s contain internal information about the zipfile
+*/
+typedef struct
+{
+    zlib_filefunc64_32_def z_filefunc;
+    int is64bitOpenFunction;
+    voidpf filestream;        /* io structure of the zipfile */
+    unz_global_info64 gi;       /* public global information */
+    ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
+    ZPOS64_T num_file;             /* number of the current file in the zipfile*/
+    ZPOS64_T pos_in_central_dir;   /* pos of the current file in the central dir*/
+    ZPOS64_T current_file_ok;      /* flag about the usability of the current file*/
+    ZPOS64_T central_pos;          /* position of the beginning of the central dir*/
+
+    ZPOS64_T size_central_dir;     /* size of the central directory  */
+    ZPOS64_T offset_central_dir;   /* offset of start of central directory with
+                                   respect to the starting disk number */
+
+    unz_file_info64 cur_file_info; /* public info about the current file in zip*/
+    unz_file_info64_internal cur_file_info_internal; /* private info about it*/
+    file_in_zip64_read_info_s* pfile_in_zip_read; /* structure about the current
+                                        file if we are decompressing it */
+    int encrypted;
+
+    int isZip64;
+
+#    ifndef NOUNCRYPT
+    unsigned long keys[3];     /* keys defining the pseudo-random sequence */
+    const z_crc_t* pcrc_32_tab;
+#    endif
+} unz64_s;
+
+
+#ifndef NOUNCRYPT
+#include "crypt.h"
+#endif
+
+
+/* ===========================================================================
+   Reads a long in LSB order from the given gz_stream. Sets
+*/
+
+local int unz64local_getShort(const zlib_filefunc64_32_def* pzlib_filefunc_def,
+                              voidpf filestream,
+                              uLong *pX) {
+    unsigned char c[2];
+    int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,c,2);
+    if (err==2)
+    {
+        *pX = c[0] | ((uLong)c[1] << 8);
+        return UNZ_OK;
+    }
+    else
+    {
+        *pX = 0;
+        if (ZERROR64(*pzlib_filefunc_def,filestream))
+            return UNZ_ERRNO;
+        else
+            return UNZ_EOF;
+    }
+}
+
+local int unz64local_getLong(const zlib_filefunc64_32_def* pzlib_filefunc_def,
+                             voidpf filestream,
+                             uLong *pX) {
+    unsigned char c[4];
+    int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,c,4);
+    if (err==4)
+    {
+        *pX = c[0] | ((uLong)c[1] << 8) | ((uLong)c[2] << 16) | ((uLong)c[3] << 24);
+        return UNZ_OK;
+    }
+    else
+    {
+        *pX = 0;
+        if (ZERROR64(*pzlib_filefunc_def,filestream))
+            return UNZ_ERRNO;
+        else
+            return UNZ_EOF;
+    }
+}
+
+
+local int unz64local_getLong64(const zlib_filefunc64_32_def* pzlib_filefunc_def,
+                               voidpf filestream,
+                               ZPOS64_T *pX) {
+    unsigned char c[8];
+    int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,c,8);
+    if (err==8)
+    {
+        *pX = c[0] | ((ZPOS64_T)c[1] << 8) | ((ZPOS64_T)c[2] << 16) | ((ZPOS64_T)c[3] << 24)
+            | ((ZPOS64_T)c[4] << 32) | ((ZPOS64_T)c[5] << 40) | ((ZPOS64_T)c[6] << 48) | ((ZPOS64_T)c[7] << 56);
+        return UNZ_OK;
+    }
+    else
+    {
+        *pX = 0;
+        if (ZERROR64(*pzlib_filefunc_def,filestream))
+            return UNZ_ERRNO;
+        else
+            return UNZ_EOF;
+    }
+}
+
+/* My own strcmpi / strcasecmp */
+local int strcmpcasenosensitive_internal(const char* fileName1, const char* fileName2) {
+    for (;;)
+    {
+        char c1=*(fileName1++);
+        char c2=*(fileName2++);
+        if ((c1>='a') && (c1<='z'))
+            c1 -= 0x20;
+        if ((c2>='a') && (c2<='z'))
+            c2 -= 0x20;
+        if (c1=='\0')
+            return ((c2=='\0') ? 0 : -1);
+        if (c2=='\0')
+            return 1;
+        if (c1<c2)
+            return -1;
+        if (c1>c2)
+            return 1;
+    }
+}
+
+
+#ifdef  CASESENSITIVITYDEFAULT_NO
+#define CASESENSITIVITYDEFAULTVALUE 2
+#else
+#define CASESENSITIVITYDEFAULTVALUE 1
+#endif
+
+#ifndef STRCMPCASENOSENTIVEFUNCTION
+#define STRCMPCASENOSENTIVEFUNCTION strcmpcasenosensitive_internal
+#endif
+
+/*
+   Compare two filenames (fileName1,fileName2).
+   If iCaseSensitivity = 1, comparison is case sensitive (like strcmp)
+   If iCaseSensitivity = 2, comparison is not case sensitive (like strcmpi
+                                                                or strcasecmp)
+   If iCaseSensitivity = 0, case sensitivity is default of your operating system
+        (like 1 on Unix, 2 on Windows)
+
+*/
+extern int ZEXPORT unzStringFileNameCompare (const char*  fileName1,
+                                             const char*  fileName2,
+                                             int iCaseSensitivity) {
+    if (iCaseSensitivity==0)
+        iCaseSensitivity=CASESENSITIVITYDEFAULTVALUE;
+
+    if (iCaseSensitivity==1)
+        return strcmp(fileName1,fileName2);
+
+    return STRCMPCASENOSENTIVEFUNCTION(fileName1,fileName2);
+}
+
+#ifndef BUFREADCOMMENT
+#define BUFREADCOMMENT (0x400)
+#endif
+
+#ifndef CENTRALDIRINVALID
+#define CENTRALDIRINVALID ((ZPOS64_T)(-1))
+#endif
+
+/*
+  Locate the Central directory of a zipfile (at the end, just before
+    the global comment)
+*/
+local ZPOS64_T unz64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream) {
+    unsigned char* buf;
+    ZPOS64_T uSizeFile;
+    ZPOS64_T uBackRead;
+    ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
+    ZPOS64_T uPosFound=CENTRALDIRINVALID;
+
+    if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
+        return CENTRALDIRINVALID;
+
+
+    uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
+
+    if (uMaxBack>uSizeFile)
+        uMaxBack = uSizeFile;
+
+    buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
+    if (buf==NULL)
+        return CENTRALDIRINVALID;
+
+    uBackRead = 4;
+    while (uBackRead<uMaxBack)
+    {
+        uLong uReadSize;
+        ZPOS64_T uReadPos ;
+        int i;
+        if (uBackRead+BUFREADCOMMENT>uMaxBack)
+            uBackRead = uMaxBack;
+        else
+            uBackRead+=BUFREADCOMMENT;
+        uReadPos = uSizeFile-uBackRead ;
+
+        uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
+                     (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
+        if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+            break;
+
+        if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
+            break;
+
+        for (i=(int)uReadSize-3; (i--)>0;)
+            if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
+                ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06))
+            {
+                uPosFound = uReadPos+(unsigned)i;
+                break;
+            }
+
+        if (uPosFound!=CENTRALDIRINVALID)
+            break;
+    }
+    free(buf);
+    return uPosFound;
+}
+
+
+/*
+  Locate the Central directory 64 of a zipfile (at the end, just before
+    the global comment)
+*/
+local ZPOS64_T unz64local_SearchCentralDir64(const zlib_filefunc64_32_def* pzlib_filefunc_def,
+                                             voidpf filestream) {
+    unsigned char* buf;
+    ZPOS64_T uSizeFile;
+    ZPOS64_T uBackRead;
+    ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
+    ZPOS64_T uPosFound=CENTRALDIRINVALID;
+    uLong uL;
+                ZPOS64_T relativeOffset;
+
+    if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
+        return CENTRALDIRINVALID;
+
+
+    uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
+
+    if (uMaxBack>uSizeFile)
+        uMaxBack = uSizeFile;
+
+    buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
+    if (buf==NULL)
+        return CENTRALDIRINVALID;
+
+    uBackRead = 4;
+    while (uBackRead<uMaxBack)
+    {
+        uLong uReadSize;
+        ZPOS64_T uReadPos;
+        int i;
+        if (uBackRead+BUFREADCOMMENT>uMaxBack)
+            uBackRead = uMaxBack;
+        else
+            uBackRead+=BUFREADCOMMENT;
+        uReadPos = uSizeFile-uBackRead ;
+
+        uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
+                     (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
+        if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+            break;
+
+        if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
+            break;
+
+        for (i=(int)uReadSize-3; (i--)>0;)
+            if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
+                ((*(buf+i+2))==0x06) && ((*(buf+i+3))==0x07))
+            {
+                uPosFound = uReadPos+(unsigned)i;
+                break;
+            }
+
+        if (uPosFound!=CENTRALDIRINVALID)
+            break;
+    }
+    free(buf);
+    if (uPosFound == CENTRALDIRINVALID)
+        return CENTRALDIRINVALID;
+
+    /* Zip64 end of central directory locator */
+    if (ZSEEK64(*pzlib_filefunc_def,filestream, uPosFound,ZLIB_FILEFUNC_SEEK_SET)!=0)
+        return CENTRALDIRINVALID;
+
+    /* the signature, already checked */
+    if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
+        return CENTRALDIRINVALID;
+
+    /* number of the disk with the start of the zip64 end of central directory */
+    if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
+        return CENTRALDIRINVALID;
+    if (uL != 0)
+        return CENTRALDIRINVALID;
+
+    /* relative offset of the zip64 end of central directory record */
+    if (unz64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=UNZ_OK)
+        return CENTRALDIRINVALID;
+
+    /* total number of disks */
+    if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
+        return CENTRALDIRINVALID;
+    if (uL != 1)
+        return CENTRALDIRINVALID;
+
+    /* Goto end of central directory record */
+    if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0)
+        return CENTRALDIRINVALID;
+
+     /* the signature */
+    if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
+        return CENTRALDIRINVALID;
+
+    if (uL != 0x06064b50)
+        return CENTRALDIRINVALID;
+
+    return relativeOffset;
+}
+
+/*
+  Open a Zip file. path contain the full pathname (by example,
+     on a Windows NT computer "c:\\test\\zlib114.zip" or on an Unix computer
+     "zlib/zlib114.zip".
+     If the zipfile cannot be opened (file doesn't exist or in not valid), the
+       return value is NULL.
+     Else, the return value is a unzFile Handle, usable with other function
+       of this unzip package.
+*/
+local unzFile unzOpenInternal(const void *path,
+                              zlib_filefunc64_32_def* pzlib_filefunc64_32_def,
+                              int is64bitOpenFunction) {
+    unz64_s us;
+    unz64_s *s;
+    ZPOS64_T central_pos;
+    uLong   uL;
+
+    uLong number_disk;          /* number of the current disk, used for
+                                   spanning ZIP, unsupported, always 0*/
+    uLong number_disk_with_CD;  /* number the disk with central dir, used
+                                   for spanning ZIP, unsupported, always 0*/
+    ZPOS64_T number_entry_CD;      /* total number of entries in
+                                   the central dir
+                                   (same than number_entry on nospan) */
+
+    int err=UNZ_OK;
+
+    if (unz_copyright[0]!=' ')
+        return NULL;
+
+    us.z_filefunc.zseek32_file = NULL;
+    us.z_filefunc.ztell32_file = NULL;
+    if (pzlib_filefunc64_32_def==NULL)
+        fill_fopen64_filefunc(&us.z_filefunc.zfile_func64);
+    else
+        us.z_filefunc = *pzlib_filefunc64_32_def;
+    us.is64bitOpenFunction = is64bitOpenFunction;
+
+
+
+    us.filestream = ZOPEN64(us.z_filefunc,
+                                                 path,
+                                                 ZLIB_FILEFUNC_MODE_READ |
+                                                 ZLIB_FILEFUNC_MODE_EXISTING);
+    if (us.filestream==NULL)
+        return NULL;
+
+    central_pos = unz64local_SearchCentralDir64(&us.z_filefunc,us.filestream);
+    if (central_pos!=CENTRALDIRINVALID)
+    {
+        uLong uS;
+        ZPOS64_T uL64;
+
+        us.isZip64 = 1;
+
+        if (ZSEEK64(us.z_filefunc, us.filestream,
+                                      central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+        err=UNZ_ERRNO;
+
+        /* the signature, already checked */
+        if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* size of zip64 end of central directory record */
+        if (unz64local_getLong64(&us.z_filefunc, us.filestream,&uL64)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* version made by */
+        if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* version needed to extract */
+        if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* number of this disk */
+        if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* number of the disk with the start of the central directory */
+        if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* total number of entries in the central directory on this disk */
+        if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.gi.number_entry)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* total number of entries in the central directory */
+        if (unz64local_getLong64(&us.z_filefunc, us.filestream,&number_entry_CD)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        if ((number_entry_CD!=us.gi.number_entry) ||
+            (number_disk_with_CD!=0) ||
+            (number_disk!=0))
+            err=UNZ_BADZIPFILE;
+
+        /* size of the central directory */
+        if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.size_central_dir)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* offset of start of central directory with respect to the
+          starting disk number */
+        if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.offset_central_dir)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        us.gi.size_comment = 0;
+    }
+    else
+    {
+        central_pos = unz64local_SearchCentralDir(&us.z_filefunc,us.filestream);
+        if (central_pos==CENTRALDIRINVALID)
+            err=UNZ_ERRNO;
+
+        us.isZip64 = 0;
+
+        if (ZSEEK64(us.z_filefunc, us.filestream,
+                                        central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+            err=UNZ_ERRNO;
+
+        /* the signature, already checked */
+        if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* number of this disk */
+        if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* number of the disk with the start of the central directory */
+        if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* total number of entries in the central dir on this disk */
+        if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+            err=UNZ_ERRNO;
+        us.gi.number_entry = uL;
+
+        /* total number of entries in the central dir */
+        if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+            err=UNZ_ERRNO;
+        number_entry_CD = uL;
+
+        if ((number_entry_CD!=us.gi.number_entry) ||
+            (number_disk_with_CD!=0) ||
+            (number_disk!=0))
+            err=UNZ_BADZIPFILE;
+
+        /* size of the central directory */
+        if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+            err=UNZ_ERRNO;
+        us.size_central_dir = uL;
+
+        /* offset of start of central directory with respect to the
+            starting disk number */
+        if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+            err=UNZ_ERRNO;
+        us.offset_central_dir = uL;
+
+        /* zipfile comment length */
+        if (unz64local_getShort(&us.z_filefunc, us.filestream,&us.gi.size_comment)!=UNZ_OK)
+            err=UNZ_ERRNO;
+    }
+
+    if ((central_pos<us.offset_central_dir+us.size_central_dir) &&
+        (err==UNZ_OK))
+        err=UNZ_BADZIPFILE;
+
+    if (err!=UNZ_OK)
+    {
+        ZCLOSE64(us.z_filefunc, us.filestream);
+        return NULL;
+    }
+
+    us.byte_before_the_zipfile = central_pos -
+                            (us.offset_central_dir+us.size_central_dir);
+    us.central_pos = central_pos;
+    us.pfile_in_zip_read = NULL;
+    us.encrypted = 0;
+
+
+    s=(unz64_s*)ALLOC(sizeof(unz64_s));
+    if( s != NULL)
+    {
+        *s=us;
+        unzGoToFirstFile((unzFile)s);
+    }
+    return (unzFile)s;
+}
+
+
+extern unzFile ZEXPORT unzOpen2(const char *path,
+                                zlib_filefunc_def* pzlib_filefunc32_def) {
+    if (pzlib_filefunc32_def != NULL)
+    {
+        zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
+        fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def);
+        return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 0);
+    }
+    else
+        return unzOpenInternal(path, NULL, 0);
+}
+
+extern unzFile ZEXPORT unzOpen2_64(const void *path,
+                                   zlib_filefunc64_def* pzlib_filefunc_def) {
+    if (pzlib_filefunc_def != NULL)
+    {
+        zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
+        zlib_filefunc64_32_def_fill.zfile_func64 = *pzlib_filefunc_def;
+        zlib_filefunc64_32_def_fill.ztell32_file = NULL;
+        zlib_filefunc64_32_def_fill.zseek32_file = NULL;
+        return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 1);
+    }
+    else
+        return unzOpenInternal(path, NULL, 1);
+}
+
+extern unzFile ZEXPORT unzOpen(const char *path) {
+    return unzOpenInternal(path, NULL, 0);
+}
+
+extern unzFile ZEXPORT unzOpen64(const void *path) {
+    return unzOpenInternal(path, NULL, 1);
+}
+
+/*
+  Close a ZipFile opened with unzOpen.
+  If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
+    these files MUST be closed with unzCloseCurrentFile before call unzClose.
+  return UNZ_OK if there is no problem. */
+extern int ZEXPORT unzClose(unzFile file) {
+    unz64_s* s;
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+
+    if (s->pfile_in_zip_read!=NULL)
+        unzCloseCurrentFile(file);
+
+    ZCLOSE64(s->z_filefunc, s->filestream);
+    free(s);
+    return UNZ_OK;
+}
+
+
+/*
+  Write info about the ZipFile in the *pglobal_info structure.
+  No preparation of the structure is needed
+  return UNZ_OK if there is no problem. */
+extern int ZEXPORT unzGetGlobalInfo64(unzFile file, unz_global_info64* pglobal_info) {
+    unz64_s* s;
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    *pglobal_info=s->gi;
+    return UNZ_OK;
+}
+
+extern int ZEXPORT unzGetGlobalInfo(unzFile file, unz_global_info* pglobal_info32) {
+    unz64_s* s;
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    /* to do : check if number_entry is not truncated */
+    pglobal_info32->number_entry = (uLong)s->gi.number_entry;
+    pglobal_info32->size_comment = s->gi.size_comment;
+    return UNZ_OK;
+}
+/*
+   Translate date/time from Dos format to tm_unz (readable more easily)
+*/
+local void unz64local_DosDateToTmuDate(ZPOS64_T ulDosDate, tm_unz* ptm) {
+    ZPOS64_T uDate;
+    uDate = (ZPOS64_T)(ulDosDate>>16);
+    ptm->tm_mday = (int)(uDate&0x1f) ;
+    ptm->tm_mon =  (int)((((uDate)&0x1E0)/0x20)-1) ;
+    ptm->tm_year = (int)(((uDate&0x0FE00)/0x0200)+1980) ;
+
+    ptm->tm_hour = (int) ((ulDosDate &0xF800)/0x800);
+    ptm->tm_min =  (int) ((ulDosDate&0x7E0)/0x20) ;
+    ptm->tm_sec =  (int) (2*(ulDosDate&0x1f)) ;
+}
+
+/*
+  Get Info about the current file in the zipfile, with internal only info
+*/
+local int unz64local_GetCurrentFileInfoInternal(unzFile file,
+                                                unz_file_info64 *pfile_info,
+                                                unz_file_info64_internal
+                                                *pfile_info_internal,
+                                                char *szFileName,
+                                                uLong fileNameBufferSize,
+                                                void *extraField,
+                                                uLong extraFieldBufferSize,
+                                                char *szComment,
+                                                uLong commentBufferSize) {
+    unz64_s* s;
+    unz_file_info64 file_info;
+    unz_file_info64_internal file_info_internal;
+    int err=UNZ_OK;
+    uLong uMagic;
+    long lSeek=0;
+    uLong uL;
+
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    if (ZSEEK64(s->z_filefunc, s->filestream,
+              s->pos_in_central_dir+s->byte_before_the_zipfile,
+              ZLIB_FILEFUNC_SEEK_SET)!=0)
+        err=UNZ_ERRNO;
+
+
+    /* we check the magic */
+    if (err==UNZ_OK)
+    {
+        if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
+            err=UNZ_ERRNO;
+        else if (uMagic!=0x02014b50)
+            err=UNZ_BADZIPFILE;
+    }
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version_needed) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.flag) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.compression_method) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.dosDate) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    unz64local_DosDateToTmuDate(file_info.dosDate,&file_info.tmu_date);
+
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.crc) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
+        err=UNZ_ERRNO;
+    file_info.compressed_size = uL;
+
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
+        err=UNZ_ERRNO;
+    file_info.uncompressed_size = uL;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_filename) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_extra) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_comment) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.disk_num_start) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.internal_fa) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.external_fa) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+                // relative offset of local header
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
+        err=UNZ_ERRNO;
+    file_info_internal.offset_curfile = uL;
+
+    lSeek+=file_info.size_filename;
+    if ((err==UNZ_OK) && (szFileName!=NULL))
+    {
+        uLong uSizeRead ;
+        if (file_info.size_filename<fileNameBufferSize)
+        {
+            *(szFileName+file_info.size_filename)='\0';
+            uSizeRead = file_info.size_filename;
+        }
+        else
+            uSizeRead = fileNameBufferSize;
+
+        if ((file_info.size_filename>0) && (fileNameBufferSize>0))
+            if (ZREAD64(s->z_filefunc, s->filestream,szFileName,uSizeRead)!=uSizeRead)
+                err=UNZ_ERRNO;
+        lSeek -= uSizeRead;
+    }
+
+    // Read extrafield
+    if ((err==UNZ_OK) && (extraField!=NULL))
+    {
+        ZPOS64_T uSizeRead ;
+        if (file_info.size_file_extra<extraFieldBufferSize)
+            uSizeRead = file_info.size_file_extra;
+        else
+            uSizeRead = extraFieldBufferSize;
+
+        if (lSeek!=0)
+        {
+            if (ZSEEK64(s->z_filefunc, s->filestream,(ZPOS64_T)lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
+                lSeek=0;
+            else
+                err=UNZ_ERRNO;
+        }
+
+        if ((file_info.size_file_extra>0) && (extraFieldBufferSize>0))
+            if (ZREAD64(s->z_filefunc, s->filestream,extraField,(uLong)uSizeRead)!=uSizeRead)
+                err=UNZ_ERRNO;
+
+        lSeek += file_info.size_file_extra - (uLong)uSizeRead;
+    }
+    else
+        lSeek += file_info.size_file_extra;
+
+
+    if ((err==UNZ_OK) && (file_info.size_file_extra != 0))
+    {
+                                uLong acc = 0;
+
+        // since lSeek now points to after the extra field we need to move back
+        lSeek -= file_info.size_file_extra;
+
+        if (lSeek!=0)
+        {
+            if (ZSEEK64(s->z_filefunc, s->filestream,(ZPOS64_T)lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
+                lSeek=0;
+            else
+                err=UNZ_ERRNO;
+        }
+
+        while(acc < file_info.size_file_extra)
+        {
+            uLong headerId;
+                                                uLong dataSize;
+
+            if (unz64local_getShort(&s->z_filefunc, s->filestream,&headerId) != UNZ_OK)
+                err=UNZ_ERRNO;
+
+            if (unz64local_getShort(&s->z_filefunc, s->filestream,&dataSize) != UNZ_OK)
+                err=UNZ_ERRNO;
+
+            /* ZIP64 extra fields */
+            if (headerId == 0x0001)
+            {
+                if(file_info.uncompressed_size == MAXU32)
+                {
+                    if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK)
+                        err=UNZ_ERRNO;
+                }
+
+                if(file_info.compressed_size == MAXU32)
+                {
+                    if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.compressed_size) != UNZ_OK)
+                        err=UNZ_ERRNO;
+                }
+
+                if(file_info_internal.offset_curfile == MAXU32)
+                {
+                    /* Relative Header offset */
+                    if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info_internal.offset_curfile) != UNZ_OK)
+                        err=UNZ_ERRNO;
+                }
+
+                if(file_info.disk_num_start == 0xffff)
+                {
+                    /* Disk Start Number */
+                    if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.disk_num_start) != UNZ_OK)
+                        err=UNZ_ERRNO;
+                }
+
+            }
+            else
+            {
+                if (ZSEEK64(s->z_filefunc, s->filestream,dataSize,ZLIB_FILEFUNC_SEEK_CUR)!=0)
+                    err=UNZ_ERRNO;
+            }
+
+            acc += 2 + 2 + dataSize;
+        }
+    }
+
+    if ((err==UNZ_OK) && (szComment!=NULL))
+    {
+        uLong uSizeRead ;
+        if (file_info.size_file_comment<commentBufferSize)
+        {
+            *(szComment+file_info.size_file_comment)='\0';
+            uSizeRead = file_info.size_file_comment;
+        }
+        else
+            uSizeRead = commentBufferSize;
+
+        if (lSeek!=0)
+        {
+            if (ZSEEK64(s->z_filefunc, s->filestream,(ZPOS64_T)lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
+                lSeek=0;
+            else
+                err=UNZ_ERRNO;
+        }
+
+        if ((file_info.size_file_comment>0) && (commentBufferSize>0))
+            if (ZREAD64(s->z_filefunc, s->filestream,szComment,uSizeRead)!=uSizeRead)
+                err=UNZ_ERRNO;
+        lSeek+=file_info.size_file_comment - uSizeRead;
+    }
+    else
+        lSeek+=file_info.size_file_comment;
+
+
+    if ((err==UNZ_OK) && (pfile_info!=NULL))
+        *pfile_info=file_info;
+
+    if ((err==UNZ_OK) && (pfile_info_internal!=NULL))
+        *pfile_info_internal=file_info_internal;
+
+    return err;
+}
+
+
+
+/*
+  Write info about the ZipFile in the *pglobal_info structure.
+  No preparation of the structure is needed
+  return UNZ_OK if there is no problem.
+*/
+extern int ZEXPORT unzGetCurrentFileInfo64(unzFile file,
+                                           unz_file_info64 * pfile_info,
+                                           char * szFileName, uLong fileNameBufferSize,
+                                           void *extraField, uLong extraFieldBufferSize,
+                                           char* szComment,  uLong commentBufferSize) {
+    return unz64local_GetCurrentFileInfoInternal(file,pfile_info,NULL,
+                                                 szFileName,fileNameBufferSize,
+                                                 extraField,extraFieldBufferSize,
+                                                 szComment,commentBufferSize);
+}
+
+extern int ZEXPORT unzGetCurrentFileInfo(unzFile file,
+                                         unz_file_info * pfile_info,
+                                         char * szFileName, uLong fileNameBufferSize,
+                                         void *extraField, uLong extraFieldBufferSize,
+                                         char* szComment,  uLong commentBufferSize) {
+    int err;
+    unz_file_info64 file_info64;
+    err = unz64local_GetCurrentFileInfoInternal(file,&file_info64,NULL,
+                                                szFileName,fileNameBufferSize,
+                                                extraField,extraFieldBufferSize,
+                                                szComment,commentBufferSize);
+    if ((err==UNZ_OK) && (pfile_info != NULL))
+    {
+        pfile_info->version = file_info64.version;
+        pfile_info->version_needed = file_info64.version_needed;
+        pfile_info->flag = file_info64.flag;
+        pfile_info->compression_method = file_info64.compression_method;
+        pfile_info->dosDate = file_info64.dosDate;
+        pfile_info->crc = file_info64.crc;
+
+        pfile_info->size_filename = file_info64.size_filename;
+        pfile_info->size_file_extra = file_info64.size_file_extra;
+        pfile_info->size_file_comment = file_info64.size_file_comment;
+
+        pfile_info->disk_num_start = file_info64.disk_num_start;
+        pfile_info->internal_fa = file_info64.internal_fa;
+        pfile_info->external_fa = file_info64.external_fa;
+
+        pfile_info->tmu_date = file_info64.tmu_date;
+
+
+        pfile_info->compressed_size = (uLong)file_info64.compressed_size;
+        pfile_info->uncompressed_size = (uLong)file_info64.uncompressed_size;
+
+    }
+    return err;
+}
+/*
+  Set the current file of the zipfile to the first file.
+  return UNZ_OK if there is no problem
+*/
+extern int ZEXPORT unzGoToFirstFile(unzFile file) {
+    int err=UNZ_OK;
+    unz64_s* s;
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    s->pos_in_central_dir=s->offset_central_dir;
+    s->num_file=0;
+    err=unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+                                             &s->cur_file_info_internal,
+                                             NULL,0,NULL,0,NULL,0);
+    s->current_file_ok = (err == UNZ_OK);
+    return err;
+}
+
+/*
+  Set the current file of the zipfile to the next file.
+  return UNZ_OK if there is no problem
+  return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
+*/
+extern int ZEXPORT unzGoToNextFile(unzFile file) {
+    unz64_s* s;
+    int err;
+
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    if (!s->current_file_ok)
+        return UNZ_END_OF_LIST_OF_FILE;
+    if (s->gi.number_entry != 0xffff)    /* 2^16 files overflow hack */
+      if (s->num_file+1==s->gi.number_entry)
+        return UNZ_END_OF_LIST_OF_FILE;
+
+    s->pos_in_central_dir += SIZECENTRALDIRITEM + s->cur_file_info.size_filename +
+            s->cur_file_info.size_file_extra + s->cur_file_info.size_file_comment ;
+    s->num_file++;
+    err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+                                               &s->cur_file_info_internal,
+                                               NULL,0,NULL,0,NULL,0);
+    s->current_file_ok = (err == UNZ_OK);
+    return err;
+}
+
+
+/*
+  Try locate the file szFileName in the zipfile.
+  For the iCaseSensitivity signification, see unzStringFileNameCompare
+
+  return value :
+  UNZ_OK if the file is found. It becomes the current file.
+  UNZ_END_OF_LIST_OF_FILE if the file is not found
+*/
+extern int ZEXPORT unzLocateFile(unzFile file, const char *szFileName, int iCaseSensitivity) {
+    unz64_s* s;
+    int err;
+
+    /* We remember the 'current' position in the file so that we can jump
+     * back there if we fail.
+     */
+    unz_file_info64 cur_file_infoSaved;
+    unz_file_info64_internal cur_file_info_internalSaved;
+    ZPOS64_T num_fileSaved;
+    ZPOS64_T pos_in_central_dirSaved;
+
+
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+
+    if (strlen(szFileName)>=UNZ_MAXFILENAMEINZIP)
+        return UNZ_PARAMERROR;
+
+    s=(unz64_s*)file;
+    if (!s->current_file_ok)
+        return UNZ_END_OF_LIST_OF_FILE;
+
+    /* Save the current state */
+    num_fileSaved = s->num_file;
+    pos_in_central_dirSaved = s->pos_in_central_dir;
+    cur_file_infoSaved = s->cur_file_info;
+    cur_file_info_internalSaved = s->cur_file_info_internal;
+
+    err = unzGoToFirstFile(file);
+
+    while (err == UNZ_OK)
+    {
+        char szCurrentFileName[UNZ_MAXFILENAMEINZIP+1];
+        err = unzGetCurrentFileInfo64(file,NULL,
+                                    szCurrentFileName,sizeof(szCurrentFileName)-1,
+                                    NULL,0,NULL,0);
+        if (err == UNZ_OK)
+        {
+            if (unzStringFileNameCompare(szCurrentFileName,
+                                            szFileName,iCaseSensitivity)==0)
+                return UNZ_OK;
+            err = unzGoToNextFile(file);
+        }
+    }
+
+    /* We failed, so restore the state of the 'current file' to where we
+     * were.
+     */
+    s->num_file = num_fileSaved ;
+    s->pos_in_central_dir = pos_in_central_dirSaved ;
+    s->cur_file_info = cur_file_infoSaved;
+    s->cur_file_info_internal = cur_file_info_internalSaved;
+    return err;
+}
+
+
+/*
+///////////////////////////////////////////
+// Contributed by Ryan Haksi (mailto://cryogen@infoserve.net)
+// I need random access
+//
+// Further optimization could be realized by adding an ability
+// to cache the directory in memory. The goal being a single
+// comprehensive file read to put the file I need in a memory.
+*/
+
+/*
+typedef struct unz_file_pos_s
+{
+    ZPOS64_T pos_in_zip_directory;   // offset in file
+    ZPOS64_T num_of_file;            // # of file
+} unz_file_pos;
+*/
+
+extern int ZEXPORT unzGetFilePos64(unzFile file, unz64_file_pos* file_pos) {
+    unz64_s* s;
+
+    if (file==NULL || file_pos==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    if (!s->current_file_ok)
+        return UNZ_END_OF_LIST_OF_FILE;
+
+    file_pos->pos_in_zip_directory  = s->pos_in_central_dir;
+    file_pos->num_of_file           = s->num_file;
+
+    return UNZ_OK;
+}
+
+extern int ZEXPORT unzGetFilePos(unzFile file, unz_file_pos* file_pos) {
+    unz64_file_pos file_pos64;
+    int err = unzGetFilePos64(file,&file_pos64);
+    if (err==UNZ_OK)
+    {
+        file_pos->pos_in_zip_directory = (uLong)file_pos64.pos_in_zip_directory;
+        file_pos->num_of_file = (uLong)file_pos64.num_of_file;
+    }
+    return err;
+}
+
+extern int ZEXPORT unzGoToFilePos64(unzFile file, const unz64_file_pos* file_pos) {
+    unz64_s* s;
+    int err;
+
+    if (file==NULL || file_pos==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+
+    /* jump to the right spot */
+    s->pos_in_central_dir = file_pos->pos_in_zip_directory;
+    s->num_file           = file_pos->num_of_file;
+
+    /* set the current file */
+    err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+                                               &s->cur_file_info_internal,
+                                               NULL,0,NULL,0,NULL,0);
+    /* return results */
+    s->current_file_ok = (err == UNZ_OK);
+    return err;
+}
+
+extern int ZEXPORT unzGoToFilePos(unzFile file, unz_file_pos* file_pos) {
+    unz64_file_pos file_pos64;
+    if (file_pos == NULL)
+        return UNZ_PARAMERROR;
+
+    file_pos64.pos_in_zip_directory = file_pos->pos_in_zip_directory;
+    file_pos64.num_of_file = file_pos->num_of_file;
+    return unzGoToFilePos64(file,&file_pos64);
+}
+
+/*
+// Unzip Helper Functions - should be here?
+///////////////////////////////////////////
+*/
+
+/*
+  Read the local header of the current zipfile
+  Check the coherency of the local header and info in the end of central
+        directory about this file
+  store in *piSizeVar the size of extra info in local header
+        (filename and size of extra field data)
+*/
+local int unz64local_CheckCurrentFileCoherencyHeader(unz64_s* s, uInt* piSizeVar,
+                                                     ZPOS64_T * poffset_local_extrafield,
+                                                     uInt  * psize_local_extrafield) {
+    uLong uMagic,uData,uFlags;
+    uLong size_filename;
+    uLong size_extra_field;
+    int err=UNZ_OK;
+
+    *piSizeVar = 0;
+    *poffset_local_extrafield = 0;
+    *psize_local_extrafield = 0;
+
+    if (ZSEEK64(s->z_filefunc, s->filestream,s->cur_file_info_internal.offset_curfile +
+                                s->byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET)!=0)
+        return UNZ_ERRNO;
+
+
+    if (err==UNZ_OK)
+    {
+        if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
+            err=UNZ_ERRNO;
+        else if (uMagic!=0x04034b50)
+            err=UNZ_BADZIPFILE;
+    }
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
+        err=UNZ_ERRNO;
+/*
+    else if ((err==UNZ_OK) && (uData!=s->cur_file_info.wVersion))
+        err=UNZ_BADZIPFILE;
+*/
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&uFlags) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
+        err=UNZ_ERRNO;
+    else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compression_method))
+        err=UNZ_BADZIPFILE;
+
+    if ((err==UNZ_OK) && (s->cur_file_info.compression_method!=0) &&
+/* #ifdef HAVE_BZIP2 */
+                         (s->cur_file_info.compression_method!=Z_BZIP2ED) &&
+/* #endif */
+                         (s->cur_file_info.compression_method!=Z_DEFLATED))
+        err=UNZ_BADZIPFILE;
+
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* date/time */
+        err=UNZ_ERRNO;
+
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* crc */
+        err=UNZ_ERRNO;
+    else if ((err==UNZ_OK) && (uData!=s->cur_file_info.crc) && ((uFlags & 8)==0))
+        err=UNZ_BADZIPFILE;
+
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size compr */
+        err=UNZ_ERRNO;
+    else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.compressed_size) && ((uFlags & 8)==0))
+        err=UNZ_BADZIPFILE;
+
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size uncompr */
+        err=UNZ_ERRNO;
+    else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.uncompressed_size) && ((uFlags & 8)==0))
+        err=UNZ_BADZIPFILE;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_filename) != UNZ_OK)
+        err=UNZ_ERRNO;
+    else if ((err==UNZ_OK) && (size_filename!=s->cur_file_info.size_filename))
+        err=UNZ_BADZIPFILE;
+
+    *piSizeVar += (uInt)size_filename;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_extra_field) != UNZ_OK)
+        err=UNZ_ERRNO;
+    *poffset_local_extrafield= s->cur_file_info_internal.offset_curfile +
+                                    SIZEZIPLOCALHEADER + size_filename;
+    *psize_local_extrafield = (uInt)size_extra_field;
+
+    *piSizeVar += (uInt)size_extra_field;
+
+    return err;
+}
+
+/*
+  Open for reading data the current file in the zipfile.
+  If there is no error and the file is opened, the return value is UNZ_OK.
+*/
+extern int ZEXPORT unzOpenCurrentFile3(unzFile file, int* method,
+                                       int* level, int raw, const char* password) {
+    int err=UNZ_OK;
+    uInt iSizeVar;
+    unz64_s* s;
+    file_in_zip64_read_info_s* pfile_in_zip_read_info;
+    ZPOS64_T offset_local_extrafield;  /* offset of the local extra field */
+    uInt  size_local_extrafield;    /* size of the local extra field */
+#    ifndef NOUNCRYPT
+    char source[12];
+#    else
+    if (password != NULL)
+        return UNZ_PARAMERROR;
+#    endif
+
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    if (!s->current_file_ok)
+        return UNZ_PARAMERROR;
+
+    if (s->pfile_in_zip_read != NULL)
+        unzCloseCurrentFile(file);
+
+    if (unz64local_CheckCurrentFileCoherencyHeader(s,&iSizeVar, &offset_local_extrafield,&size_local_extrafield)!=UNZ_OK)
+        return UNZ_BADZIPFILE;
+
+    pfile_in_zip_read_info = (file_in_zip64_read_info_s*)ALLOC(sizeof(file_in_zip64_read_info_s));
+    if (pfile_in_zip_read_info==NULL)
+        return UNZ_INTERNALERROR;
+
+    pfile_in_zip_read_info->read_buffer=(char*)ALLOC(UNZ_BUFSIZE);
+    pfile_in_zip_read_info->offset_local_extrafield = offset_local_extrafield;
+    pfile_in_zip_read_info->size_local_extrafield = size_local_extrafield;
+    pfile_in_zip_read_info->pos_local_extrafield=0;
+    pfile_in_zip_read_info->raw=raw;
+
+    if (pfile_in_zip_read_info->read_buffer==NULL)
+    {
+        free(pfile_in_zip_read_info);
+        return UNZ_INTERNALERROR;
+    }
+
+    pfile_in_zip_read_info->stream_initialised=0;
+
+    if (method!=NULL)
+        *method = (int)s->cur_file_info.compression_method;
+
+    if (level!=NULL)
+    {
+        *level = 6;
+        switch (s->cur_file_info.flag & 0x06)
+        {
+          case 6 : *level = 1; break;
+          case 4 : *level = 2; break;
+          case 2 : *level = 9; break;
+        }
+    }
+
+    if ((s->cur_file_info.compression_method!=0) &&
+/* #ifdef HAVE_BZIP2 */
+        (s->cur_file_info.compression_method!=Z_BZIP2ED) &&
+/* #endif */
+        (s->cur_file_info.compression_method!=Z_DEFLATED))
+
+        err=UNZ_BADZIPFILE;
+
+    pfile_in_zip_read_info->crc32_wait=s->cur_file_info.crc;
+    pfile_in_zip_read_info->crc32=0;
+    pfile_in_zip_read_info->total_out_64=0;
+    pfile_in_zip_read_info->compression_method = s->cur_file_info.compression_method;
+    pfile_in_zip_read_info->filestream=s->filestream;
+    pfile_in_zip_read_info->z_filefunc=s->z_filefunc;
+    pfile_in_zip_read_info->byte_before_the_zipfile=s->byte_before_the_zipfile;
+
+    pfile_in_zip_read_info->stream.total_out = 0;
+
+    if ((s->cur_file_info.compression_method==Z_BZIP2ED) && (!raw))
+    {
+#ifdef HAVE_BZIP2
+      pfile_in_zip_read_info->bstream.bzalloc = (void *(*) (void *, int, int))0;
+      pfile_in_zip_read_info->bstream.bzfree = (free_func)0;
+      pfile_in_zip_read_info->bstream.opaque = (voidpf)0;
+      pfile_in_zip_read_info->bstream.state = (voidpf)0;
+
+      pfile_in_zip_read_info->stream.zalloc = (alloc_func)0;
+      pfile_in_zip_read_info->stream.zfree = (free_func)0;
+      pfile_in_zip_read_info->stream.opaque = (voidpf)0;
+      pfile_in_zip_read_info->stream.next_in = (voidpf)0;
+      pfile_in_zip_read_info->stream.avail_in = 0;
+
+      err=BZ2_bzDecompressInit(&pfile_in_zip_read_info->bstream, 0, 0);
+      if (err == Z_OK)
+        pfile_in_zip_read_info->stream_initialised=Z_BZIP2ED;
+      else
+      {
+        free(pfile_in_zip_read_info->read_buffer);
+        free(pfile_in_zip_read_info);
+        return err;
+      }
+#else
+      pfile_in_zip_read_info->raw=1;
+#endif
+    }
+    else if ((s->cur_file_info.compression_method==Z_DEFLATED) && (!raw))
+    {
+      pfile_in_zip_read_info->stream.zalloc = (alloc_func)0;
+      pfile_in_zip_read_info->stream.zfree = (free_func)0;
+      pfile_in_zip_read_info->stream.opaque = (voidpf)0;
+      pfile_in_zip_read_info->stream.next_in = 0;
+      pfile_in_zip_read_info->stream.avail_in = 0;
+
+      err=inflateInit2(&pfile_in_zip_read_info->stream, -MAX_WBITS);
+      if (err == Z_OK)
+        pfile_in_zip_read_info->stream_initialised=Z_DEFLATED;
+      else
+      {
+        free(pfile_in_zip_read_info->read_buffer);
+        free(pfile_in_zip_read_info);
+        return err;
+      }
+        /* windowBits is passed < 0 to tell that there is no zlib header.
+         * Note that in this case inflate *requires* an extra "dummy" byte
+         * after the compressed stream in order to complete decompression and
+         * return Z_STREAM_END.
+         * In unzip, i don't wait absolutely Z_STREAM_END because I known the
+         * size of both compressed and uncompressed data
+         */
+    }
+    pfile_in_zip_read_info->rest_read_compressed =
+            s->cur_file_info.compressed_size ;
+    pfile_in_zip_read_info->rest_read_uncompressed =
+            s->cur_file_info.uncompressed_size ;
+
+
+    pfile_in_zip_read_info->pos_in_zipfile =
+            s->cur_file_info_internal.offset_curfile + SIZEZIPLOCALHEADER +
+              iSizeVar;
+
+    pfile_in_zip_read_info->stream.avail_in = (uInt)0;
+
+    s->pfile_in_zip_read = pfile_in_zip_read_info;
+                s->encrypted = 0;
+
+#    ifndef NOUNCRYPT
+    if (password != NULL)
+    {
+        int i;
+        s->pcrc_32_tab = get_crc_table();
+        init_keys(password,s->keys,s->pcrc_32_tab);
+        if (ZSEEK64(s->z_filefunc, s->filestream,
+                  s->pfile_in_zip_read->pos_in_zipfile +
+                     s->pfile_in_zip_read->byte_before_the_zipfile,
+                  SEEK_SET)!=0)
+            return UNZ_INTERNALERROR;
+        if(ZREAD64(s->z_filefunc, s->filestream,source, 12)<12)
+            return UNZ_INTERNALERROR;
+
+        for (i = 0; i<12; i++)
+            zdecode(s->keys,s->pcrc_32_tab,source[i]);
+
+        s->pfile_in_zip_read->pos_in_zipfile+=12;
+        s->encrypted=1;
+    }
+#    endif
+
+
+    return UNZ_OK;
+}
+
+extern int ZEXPORT unzOpenCurrentFile(unzFile file) {
+    return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL);
+}
+
+extern int ZEXPORT unzOpenCurrentFilePassword(unzFile file, const char* password) {
+    return unzOpenCurrentFile3(file, NULL, NULL, 0, password);
+}
+
+extern int ZEXPORT unzOpenCurrentFile2(unzFile file, int* method, int* level, int raw) {
+    return unzOpenCurrentFile3(file, method, level, raw, NULL);
+}
+
+/** Addition for GDAL : START */
+
+extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64(unzFile file) {
+    unz64_s* s;
+    file_in_zip64_read_info_s* pfile_in_zip_read_info;
+    s=(unz64_s*)file;
+    if (file==NULL)
+        return 0; //UNZ_PARAMERROR;
+    pfile_in_zip_read_info=s->pfile_in_zip_read;
+    if (pfile_in_zip_read_info==NULL)
+        return 0; //UNZ_PARAMERROR;
+    return pfile_in_zip_read_info->pos_in_zipfile +
+                         pfile_in_zip_read_info->byte_before_the_zipfile;
+}
+
+/** Addition for GDAL : END */
+
+/*
+  Read bytes from the current file.
+  buf contain buffer where data must be copied
+  len the size of buf.
+
+  return the number of byte copied if some bytes are copied
+  return 0 if the end of file was reached
+  return <0 with error code if there is an error
+    (UNZ_ERRNO for IO error, or zLib error for uncompress error)
+*/
+extern int ZEXPORT unzReadCurrentFile(unzFile file, voidp buf, unsigned len) {
+    int err=UNZ_OK;
+    uInt iRead = 0;
+    unz64_s* s;
+    file_in_zip64_read_info_s* pfile_in_zip_read_info;
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+    if (pfile_in_zip_read_info==NULL)
+        return UNZ_PARAMERROR;
+
+
+    if (pfile_in_zip_read_info->read_buffer == NULL)
+        return UNZ_END_OF_LIST_OF_FILE;
+    if (len==0)
+        return 0;
+
+    pfile_in_zip_read_info->stream.next_out = (Bytef*)buf;
+
+    pfile_in_zip_read_info->stream.avail_out = (uInt)len;
+
+    if ((len>pfile_in_zip_read_info->rest_read_uncompressed) &&
+        (!(pfile_in_zip_read_info->raw)))
+        pfile_in_zip_read_info->stream.avail_out =
+            (uInt)pfile_in_zip_read_info->rest_read_uncompressed;
+
+    if ((len>pfile_in_zip_read_info->rest_read_compressed+
+           pfile_in_zip_read_info->stream.avail_in) &&
+         (pfile_in_zip_read_info->raw))
+        pfile_in_zip_read_info->stream.avail_out =
+            (uInt)pfile_in_zip_read_info->rest_read_compressed+
+            pfile_in_zip_read_info->stream.avail_in;
+
+    while (pfile_in_zip_read_info->stream.avail_out>0)
+    {
+        if ((pfile_in_zip_read_info->stream.avail_in==0) &&
+            (pfile_in_zip_read_info->rest_read_compressed>0))
+        {
+            uInt uReadThis = UNZ_BUFSIZE;
+            if (pfile_in_zip_read_info->rest_read_compressed<uReadThis)
+                uReadThis = (uInt)pfile_in_zip_read_info->rest_read_compressed;
+            if (uReadThis == 0)
+                return UNZ_EOF;
+            if (ZSEEK64(pfile_in_zip_read_info->z_filefunc,
+                      pfile_in_zip_read_info->filestream,
+                      pfile_in_zip_read_info->pos_in_zipfile +
+                         pfile_in_zip_read_info->byte_before_the_zipfile,
+                         ZLIB_FILEFUNC_SEEK_SET)!=0)
+                return UNZ_ERRNO;
+            if (ZREAD64(pfile_in_zip_read_info->z_filefunc,
+                      pfile_in_zip_read_info->filestream,
+                      pfile_in_zip_read_info->read_buffer,
+                      uReadThis)!=uReadThis)
+                return UNZ_ERRNO;
+
+
+#            ifndef NOUNCRYPT
+            if(s->encrypted)
+            {
+                uInt i;
+                for(i=0;i<uReadThis;i++)
+                  pfile_in_zip_read_info->read_buffer[i] =
+                      zdecode(s->keys,s->pcrc_32_tab,
+                              pfile_in_zip_read_info->read_buffer[i]);
+            }
+#            endif
+
+
+            pfile_in_zip_read_info->pos_in_zipfile += uReadThis;
+
+            pfile_in_zip_read_info->rest_read_compressed-=uReadThis;
+
+            pfile_in_zip_read_info->stream.next_in =
+                (Bytef*)pfile_in_zip_read_info->read_buffer;
+            pfile_in_zip_read_info->stream.avail_in = (uInt)uReadThis;
+        }
+
+        if ((pfile_in_zip_read_info->compression_method==0) || (pfile_in_zip_read_info->raw))
+        {
+            uInt uDoCopy,i ;
+
+            if ((pfile_in_zip_read_info->stream.avail_in == 0) &&
+                (pfile_in_zip_read_info->rest_read_compressed == 0))
+                return (iRead==0) ? UNZ_EOF : (int)iRead;
+
+            if (pfile_in_zip_read_info->stream.avail_out <
+                            pfile_in_zip_read_info->stream.avail_in)
+                uDoCopy = pfile_in_zip_read_info->stream.avail_out ;
+            else
+                uDoCopy = pfile_in_zip_read_info->stream.avail_in ;
+
+            for (i=0;i<uDoCopy;i++)
+                *(pfile_in_zip_read_info->stream.next_out+i) =
+                        *(pfile_in_zip_read_info->stream.next_in+i);
+
+            pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uDoCopy;
+
+            pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,
+                                pfile_in_zip_read_info->stream.next_out,
+                                uDoCopy);
+            pfile_in_zip_read_info->rest_read_uncompressed-=uDoCopy;
+            pfile_in_zip_read_info->stream.avail_in -= uDoCopy;
+            pfile_in_zip_read_info->stream.avail_out -= uDoCopy;
+            pfile_in_zip_read_info->stream.next_out += uDoCopy;
+            pfile_in_zip_read_info->stream.next_in += uDoCopy;
+            pfile_in_zip_read_info->stream.total_out += uDoCopy;
+            iRead += uDoCopy;
+        }
+        else if (pfile_in_zip_read_info->compression_method==Z_BZIP2ED)
+        {
+#ifdef HAVE_BZIP2
+            uLong uTotalOutBefore,uTotalOutAfter;
+            const Bytef *bufBefore;
+            uLong uOutThis;
+
+            pfile_in_zip_read_info->bstream.next_in        = (char*)pfile_in_zip_read_info->stream.next_in;
+            pfile_in_zip_read_info->bstream.avail_in       = pfile_in_zip_read_info->stream.avail_in;
+            pfile_in_zip_read_info->bstream.total_in_lo32  = pfile_in_zip_read_info->stream.total_in;
+            pfile_in_zip_read_info->bstream.total_in_hi32  = 0;
+            pfile_in_zip_read_info->bstream.next_out       = (char*)pfile_in_zip_read_info->stream.next_out;
+            pfile_in_zip_read_info->bstream.avail_out      = pfile_in_zip_read_info->stream.avail_out;
+            pfile_in_zip_read_info->bstream.total_out_lo32 = pfile_in_zip_read_info->stream.total_out;
+            pfile_in_zip_read_info->bstream.total_out_hi32 = 0;
+
+            uTotalOutBefore = pfile_in_zip_read_info->bstream.total_out_lo32;
+            bufBefore = (const Bytef *)pfile_in_zip_read_info->bstream.next_out;
+
+            err=BZ2_bzDecompress(&pfile_in_zip_read_info->bstream);
+
+            uTotalOutAfter = pfile_in_zip_read_info->bstream.total_out_lo32;
+            uOutThis = uTotalOutAfter-uTotalOutBefore;
+
+            pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis;
+
+            pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,bufBefore, (uInt)(uOutThis));
+            pfile_in_zip_read_info->rest_read_uncompressed -= uOutThis;
+            iRead += (uInt)(uTotalOutAfter - uTotalOutBefore);
+
+            pfile_in_zip_read_info->stream.next_in   = (Bytef*)pfile_in_zip_read_info->bstream.next_in;
+            pfile_in_zip_read_info->stream.avail_in  = pfile_in_zip_read_info->bstream.avail_in;
+            pfile_in_zip_read_info->stream.total_in  = pfile_in_zip_read_info->bstream.total_in_lo32;
+            pfile_in_zip_read_info->stream.next_out  = (Bytef*)pfile_in_zip_read_info->bstream.next_out;
+            pfile_in_zip_read_info->stream.avail_out = pfile_in_zip_read_info->bstream.avail_out;
+            pfile_in_zip_read_info->stream.total_out = pfile_in_zip_read_info->bstream.total_out_lo32;
+
+            if (err==BZ_STREAM_END)
+              return (iRead==0) ? UNZ_EOF : iRead;
+            if (err!=BZ_OK)
+              break;
+#endif
+        } // end Z_BZIP2ED
+        else
+        {
+            ZPOS64_T uTotalOutBefore,uTotalOutAfter;
+            const Bytef *bufBefore;
+            ZPOS64_T uOutThis;
+            int flush=Z_SYNC_FLUSH;
+
+            uTotalOutBefore = pfile_in_zip_read_info->stream.total_out;
+            bufBefore = pfile_in_zip_read_info->stream.next_out;
+
+            /*
+            if ((pfile_in_zip_read_info->rest_read_uncompressed ==
+                     pfile_in_zip_read_info->stream.avail_out) &&
+                (pfile_in_zip_read_info->rest_read_compressed == 0))
+                flush = Z_FINISH;
+            */
+            err=inflate(&pfile_in_zip_read_info->stream,flush);
+
+            if ((err>=0) && (pfile_in_zip_read_info->stream.msg!=NULL))
+              err = Z_DATA_ERROR;
+
+            uTotalOutAfter = pfile_in_zip_read_info->stream.total_out;
+            /* Detect overflow, because z_stream.total_out is uLong (32 bits) */
+            if (uTotalOutAfter<uTotalOutBefore)
+                uTotalOutAfter += 1LL << 32; /* Add maximum value of uLong + 1 */
+            uOutThis = uTotalOutAfter-uTotalOutBefore;
+
+            pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis;
+
+            pfile_in_zip_read_info->crc32 =
+                crc32(pfile_in_zip_read_info->crc32,bufBefore,
+                        (uInt)(uOutThis));
+
+            pfile_in_zip_read_info->rest_read_uncompressed -=
+                uOutThis;
+
+            iRead += (uInt)(uTotalOutAfter - uTotalOutBefore);
+
+            if (err==Z_STREAM_END)
+                return (iRead==0) ? UNZ_EOF : (int)iRead;
+            if (err!=Z_OK)
+                break;
+        }
+    }
+
+    if (err==Z_OK)
+        return (int)iRead;
+    return err;
+}
+
+
+/*
+  Give the current position in uncompressed data
+*/
+extern z_off_t ZEXPORT unztell(unzFile file) {
+    unz64_s* s;
+    file_in_zip64_read_info_s* pfile_in_zip_read_info;
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+    if (pfile_in_zip_read_info==NULL)
+        return UNZ_PARAMERROR;
+
+    return (z_off_t)pfile_in_zip_read_info->stream.total_out;
+}
+
+extern ZPOS64_T ZEXPORT unztell64(unzFile file) {
+
+    unz64_s* s;
+    file_in_zip64_read_info_s* pfile_in_zip_read_info;
+    if (file==NULL)
+        return (ZPOS64_T)-1;
+    s=(unz64_s*)file;
+    pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+    if (pfile_in_zip_read_info==NULL)
+        return (ZPOS64_T)-1;
+
+    return pfile_in_zip_read_info->total_out_64;
+}
+
+
+/*
+  return 1 if the end of file was reached, 0 elsewhere
+*/
+extern int ZEXPORT unzeof(unzFile file) {
+    unz64_s* s;
+    file_in_zip64_read_info_s* pfile_in_zip_read_info;
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+    if (pfile_in_zip_read_info==NULL)
+        return UNZ_PARAMERROR;
+
+    if (pfile_in_zip_read_info->rest_read_uncompressed == 0)
+        return 1;
+    else
+        return 0;
+}
+
+
+
+/*
+Read extra field from the current file (opened by unzOpenCurrentFile)
+This is the local-header version of the extra field (sometimes, there is
+more info in the local-header version than in the central-header)
+
+  if buf==NULL, it return the size of the local extra field that can be read
+
+  if buf!=NULL, len is the size of the buffer, the extra header is copied in
+    buf.
+  the return value is the number of bytes copied in buf, or (if <0)
+    the error code
+*/
+extern int ZEXPORT unzGetLocalExtrafield(unzFile file, voidp buf, unsigned len) {
+    unz64_s* s;
+    file_in_zip64_read_info_s* pfile_in_zip_read_info;
+    uInt read_now;
+    ZPOS64_T size_to_read;
+
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+    if (pfile_in_zip_read_info==NULL)
+        return UNZ_PARAMERROR;
+
+    size_to_read = (pfile_in_zip_read_info->size_local_extrafield -
+                pfile_in_zip_read_info->pos_local_extrafield);
+
+    if (buf==NULL)
+        return (int)size_to_read;
+
+    if (len>size_to_read)
+        read_now = (uInt)size_to_read;
+    else
+        read_now = (uInt)len ;
+
+    if (read_now==0)
+        return 0;
+
+    if (ZSEEK64(pfile_in_zip_read_info->z_filefunc,
+              pfile_in_zip_read_info->filestream,
+              pfile_in_zip_read_info->offset_local_extrafield +
+              pfile_in_zip_read_info->pos_local_extrafield,
+              ZLIB_FILEFUNC_SEEK_SET)!=0)
+        return UNZ_ERRNO;
+
+    if (ZREAD64(pfile_in_zip_read_info->z_filefunc,
+              pfile_in_zip_read_info->filestream,
+              buf,read_now)!=read_now)
+        return UNZ_ERRNO;
+
+    return (int)read_now;
+}
+
+/*
+  Close the file in zip opened with unzOpenCurrentFile
+  Return UNZ_CRCERROR if all the file was read but the CRC is not good
+*/
+extern int ZEXPORT unzCloseCurrentFile(unzFile file) {
+    int err=UNZ_OK;
+
+    unz64_s* s;
+    file_in_zip64_read_info_s* pfile_in_zip_read_info;
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+    if (pfile_in_zip_read_info==NULL)
+        return UNZ_PARAMERROR;
+
+
+    if ((pfile_in_zip_read_info->rest_read_uncompressed == 0) &&
+        (!pfile_in_zip_read_info->raw))
+    {
+        if (pfile_in_zip_read_info->crc32 != pfile_in_zip_read_info->crc32_wait)
+            err=UNZ_CRCERROR;
+    }
+
+
+    free(pfile_in_zip_read_info->read_buffer);
+    pfile_in_zip_read_info->read_buffer = NULL;
+    if (pfile_in_zip_read_info->stream_initialised == Z_DEFLATED)
+        inflateEnd(&pfile_in_zip_read_info->stream);
+#ifdef HAVE_BZIP2
+    else if (pfile_in_zip_read_info->stream_initialised == Z_BZIP2ED)
+        BZ2_bzDecompressEnd(&pfile_in_zip_read_info->bstream);
+#endif
+
+
+    pfile_in_zip_read_info->stream_initialised = 0;
+    free(pfile_in_zip_read_info);
+
+    s->pfile_in_zip_read=NULL;
+
+    return err;
+}
+
+
+/*
+  Get the global comment string of the ZipFile, in the szComment buffer.
+  uSizeBuf is the size of the szComment buffer.
+  return the number of byte copied or an error code <0
+*/
+extern int ZEXPORT unzGetGlobalComment(unzFile file, char * szComment, uLong uSizeBuf) {
+    unz64_s* s;
+    uLong uReadThis ;
+    if (file==NULL)
+        return (int)UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+
+    uReadThis = uSizeBuf;
+    if (uReadThis>s->gi.size_comment)
+        uReadThis = s->gi.size_comment;
+
+    if (ZSEEK64(s->z_filefunc,s->filestream,s->central_pos+22,ZLIB_FILEFUNC_SEEK_SET)!=0)
+        return UNZ_ERRNO;
+
+    if (uReadThis>0)
+    {
+      *szComment='\0';
+      if (ZREAD64(s->z_filefunc,s->filestream,szComment,uReadThis)!=uReadThis)
+        return UNZ_ERRNO;
+    }
+
+    if ((szComment != NULL) && (uSizeBuf > s->gi.size_comment))
+        *(szComment+s->gi.size_comment)='\0';
+    return (int)uReadThis;
+}
+
+/* Additions by RX '2004 */
+extern ZPOS64_T ZEXPORT unzGetOffset64(unzFile file) {
+    unz64_s* s;
+
+    if (file==NULL)
+          return 0; //UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    if (!s->current_file_ok)
+      return 0;
+    if (s->gi.number_entry != 0 && s->gi.number_entry != 0xffff)
+      if (s->num_file==s->gi.number_entry)
+         return 0;
+    return s->pos_in_central_dir;
+}
+
+extern uLong ZEXPORT unzGetOffset(unzFile file) {
+    ZPOS64_T offset64;
+
+    if (file==NULL)
+          return 0; //UNZ_PARAMERROR;
+    offset64 = unzGetOffset64(file);
+    return (uLong)offset64;
+}
+
+extern int ZEXPORT unzSetOffset64(unzFile file, ZPOS64_T pos) {
+    unz64_s* s;
+    int err;
+
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+
+    s->pos_in_central_dir = pos;
+    s->num_file = s->gi.number_entry;      /* hack */
+    err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+                                              &s->cur_file_info_internal,
+                                              NULL,0,NULL,0,NULL,0);
+    s->current_file_ok = (err == UNZ_OK);
+    return err;
+}
+
+extern int ZEXPORT unzSetOffset (unzFile file, uLong pos) {
+    return unzSetOffset64(file,pos);
+}
diff --git a/compat/zlib/contrib/minizip/unzip.h b/compat/zlib/contrib/minizip/unzip.h
new file mode 100644
index 0000000..5cfc9c6
--- /dev/null
+++ b/compat/zlib/contrib/minizip/unzip.h
@@ -0,0 +1,437 @@
+/* unzip.h -- IO for uncompress .zip files using zlib
+   Version 1.1, February 14h, 2010
+   part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications of Unzip for Zip64
+         Copyright (C) 2007-2008 Even Rouault
+
+         Modifications for Zip64 support on both zip and unzip
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+         For more info read MiniZip_info.txt
+
+         ---------------------------------------------------------------------------------
+
+        Condition of use and distribution are the same than zlib :
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  ---------------------------------------------------------------------------------
+
+        Changes
+
+        See header of unzip64.c
+
+*/
+
+#ifndef _unz64_H
+#define _unz64_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef _ZLIB_H
+#include "zlib.h"
+#endif
+
+#ifndef  _ZLIBIOAPI_H
+#include "ioapi.h"
+#endif
+
+#ifdef HAVE_BZIP2
+#include "bzlib.h"
+#endif
+
+#define Z_BZIP2ED 12
+
+#if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP)
+/* like the STRICT of WIN32, we define a pointer that cannot be converted
+    from (void*) without cast */
+typedef struct TagunzFile__ { int unused; } unzFile__;
+typedef unzFile__ *unzFile;
+#else
+typedef voidp unzFile;
+#endif
+
+
+#define UNZ_OK                          (0)
+#define UNZ_END_OF_LIST_OF_FILE         (-100)
+#define UNZ_ERRNO                       (Z_ERRNO)
+#define UNZ_EOF                         (0)
+#define UNZ_PARAMERROR                  (-102)
+#define UNZ_BADZIPFILE                  (-103)
+#define UNZ_INTERNALERROR               (-104)
+#define UNZ_CRCERROR                    (-105)
+
+/* tm_unz contain date/time info */
+typedef struct tm_unz_s
+{
+    int tm_sec;             /* seconds after the minute - [0,59] */
+    int tm_min;             /* minutes after the hour - [0,59] */
+    int tm_hour;            /* hours since midnight - [0,23] */
+    int tm_mday;            /* day of the month - [1,31] */
+    int tm_mon;             /* months since January - [0,11] */
+    int tm_year;            /* years - [1980..2044] */
+} tm_unz;
+
+/* unz_global_info structure contain global data about the ZIPfile
+   These data comes from the end of central dir */
+typedef struct unz_global_info64_s
+{
+    ZPOS64_T number_entry;         /* total number of entries in
+                                     the central dir on this disk */
+    uLong size_comment;         /* size of the global comment of the zipfile */
+} unz_global_info64;
+
+typedef struct unz_global_info_s
+{
+    uLong number_entry;         /* total number of entries in
+                                     the central dir on this disk */
+    uLong size_comment;         /* size of the global comment of the zipfile */
+} unz_global_info;
+
+/* unz_file_info contain information about a file in the zipfile */
+typedef struct unz_file_info64_s
+{
+    uLong version;              /* version made by                 2 bytes */
+    uLong version_needed;       /* version needed to extract       2 bytes */
+    uLong flag;                 /* general purpose bit flag        2 bytes */
+    uLong compression_method;   /* compression method              2 bytes */
+    uLong dosDate;              /* last mod file date in Dos fmt   4 bytes */
+    uLong crc;                  /* crc-32                          4 bytes */
+    ZPOS64_T compressed_size;   /* compressed size                 8 bytes */
+    ZPOS64_T uncompressed_size; /* uncompressed size               8 bytes */
+    uLong size_filename;        /* filename length                 2 bytes */
+    uLong size_file_extra;      /* extra field length              2 bytes */
+    uLong size_file_comment;    /* file comment length             2 bytes */
+
+    uLong disk_num_start;       /* disk number start               2 bytes */
+    uLong internal_fa;          /* internal file attributes        2 bytes */
+    uLong external_fa;          /* external file attributes        4 bytes */
+
+    tm_unz tmu_date;
+} unz_file_info64;
+
+typedef struct unz_file_info_s
+{
+    uLong version;              /* version made by                 2 bytes */
+    uLong version_needed;       /* version needed to extract       2 bytes */
+    uLong flag;                 /* general purpose bit flag        2 bytes */
+    uLong compression_method;   /* compression method              2 bytes */
+    uLong dosDate;              /* last mod file date in Dos fmt   4 bytes */
+    uLong crc;                  /* crc-32                          4 bytes */
+    uLong compressed_size;      /* compressed size                 4 bytes */
+    uLong uncompressed_size;    /* uncompressed size               4 bytes */
+    uLong size_filename;        /* filename length                 2 bytes */
+    uLong size_file_extra;      /* extra field length              2 bytes */
+    uLong size_file_comment;    /* file comment length             2 bytes */
+
+    uLong disk_num_start;       /* disk number start               2 bytes */
+    uLong internal_fa;          /* internal file attributes        2 bytes */
+    uLong external_fa;          /* external file attributes        4 bytes */
+
+    tm_unz tmu_date;
+} unz_file_info;
+
+extern int ZEXPORT unzStringFileNameCompare(const char* fileName1,
+                                            const char* fileName2,
+                                            int iCaseSensitivity);
+/*
+   Compare two filenames (fileName1,fileName2).
+   If iCaseSensitivity = 1, comparison is case sensitive (like strcmp)
+   If iCaseSensitivity = 2, comparison is not case sensitive (like strcmpi
+                                or strcasecmp)
+   If iCaseSensitivity = 0, case sensitivity is default of your operating system
+    (like 1 on Unix, 2 on Windows)
+*/
+
+
+extern unzFile ZEXPORT unzOpen(const char *path);
+extern unzFile ZEXPORT unzOpen64(const void *path);
+/*
+  Open a Zip file. path contain the full pathname (by example,
+     on a Windows XP computer "c:\\zlib\\zlib113.zip" or on an Unix computer
+     "zlib/zlib113.zip".
+     If the zipfile cannot be opened (file don't exist or in not valid), the
+       return value is NULL.
+     Else, the return value is a unzFile Handle, usable with other function
+       of this unzip package.
+     the "64" function take a const void* pointer, because the path is just the
+       value passed to the open64_file_func callback.
+     Under Windows, if UNICODE is defined, using fill_fopen64_filefunc, the path
+       is a pointer to a wide unicode string (LPCTSTR is LPCWSTR), so const char*
+       does not describe the reality
+*/
+
+
+extern unzFile ZEXPORT unzOpen2(const char *path,
+                                zlib_filefunc_def* pzlib_filefunc_def);
+/*
+   Open a Zip file, like unzOpen, but provide a set of file low level API
+      for read/write the zip file (see ioapi.h)
+*/
+
+extern unzFile ZEXPORT unzOpen2_64(const void *path,
+                                   zlib_filefunc64_def* pzlib_filefunc_def);
+/*
+   Open a Zip file, like unz64Open, but provide a set of file low level API
+      for read/write the zip file (see ioapi.h)
+*/
+
+extern int ZEXPORT unzClose(unzFile file);
+/*
+  Close a ZipFile opened with unzOpen.
+  If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
+    these files MUST be closed with unzCloseCurrentFile before call unzClose.
+  return UNZ_OK if there is no problem. */
+
+extern int ZEXPORT unzGetGlobalInfo(unzFile file,
+                                    unz_global_info *pglobal_info);
+
+extern int ZEXPORT unzGetGlobalInfo64(unzFile file,
+                                      unz_global_info64 *pglobal_info);
+/*
+  Write info about the ZipFile in the *pglobal_info structure.
+  No preparation of the structure is needed
+  return UNZ_OK if there is no problem. */
+
+
+extern int ZEXPORT unzGetGlobalComment(unzFile file,
+                                       char *szComment,
+                                       uLong uSizeBuf);
+/*
+  Get the global comment string of the ZipFile, in the szComment buffer.
+  uSizeBuf is the size of the szComment buffer.
+  return the number of byte copied or an error code <0
+*/
+
+
+/***************************************************************************/
+/* Unzip package allow you browse the directory of the zipfile */
+
+extern int ZEXPORT unzGoToFirstFile(unzFile file);
+/*
+  Set the current file of the zipfile to the first file.
+  return UNZ_OK if there is no problem
+*/
+
+extern int ZEXPORT unzGoToNextFile(unzFile file);
+/*
+  Set the current file of the zipfile to the next file.
+  return UNZ_OK if there is no problem
+  return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
+*/
+
+extern int ZEXPORT unzLocateFile(unzFile file,
+                                 const char *szFileName,
+                                 int iCaseSensitivity);
+/*
+  Try locate the file szFileName in the zipfile.
+  For the iCaseSensitivity signification, see unzStringFileNameCompare
+
+  return value :
+  UNZ_OK if the file is found. It becomes the current file.
+  UNZ_END_OF_LIST_OF_FILE if the file is not found
+*/
+
+
+/* ****************************************** */
+/* Ryan supplied functions */
+/* unz_file_info contain information about a file in the zipfile */
+typedef struct unz_file_pos_s
+{
+    uLong pos_in_zip_directory;   /* offset in zip file directory */
+    uLong num_of_file;            /* # of file */
+} unz_file_pos;
+
+extern int ZEXPORT unzGetFilePos(
+    unzFile file,
+    unz_file_pos* file_pos);
+
+extern int ZEXPORT unzGoToFilePos(
+    unzFile file,
+    unz_file_pos* file_pos);
+
+typedef struct unz64_file_pos_s
+{
+    ZPOS64_T pos_in_zip_directory;   /* offset in zip file directory */
+    ZPOS64_T num_of_file;            /* # of file */
+} unz64_file_pos;
+
+extern int ZEXPORT unzGetFilePos64(
+    unzFile file,
+    unz64_file_pos* file_pos);
+
+extern int ZEXPORT unzGoToFilePos64(
+    unzFile file,
+    const unz64_file_pos* file_pos);
+
+/* ****************************************** */
+
+extern int ZEXPORT unzGetCurrentFileInfo64(unzFile file,
+                                           unz_file_info64 *pfile_info,
+                                           char *szFileName,
+                                           uLong fileNameBufferSize,
+                                           void *extraField,
+                                           uLong extraFieldBufferSize,
+                                           char *szComment,
+                                           uLong commentBufferSize);
+
+extern int ZEXPORT unzGetCurrentFileInfo(unzFile file,
+                                         unz_file_info *pfile_info,
+                                         char *szFileName,
+                                         uLong fileNameBufferSize,
+                                         void *extraField,
+                                         uLong extraFieldBufferSize,
+                                         char *szComment,
+                                         uLong commentBufferSize);
+/*
+  Get Info about the current file
+  if pfile_info!=NULL, the *pfile_info structure will contain some info about
+        the current file
+  if szFileName!=NULL, the filename string will be copied in szFileName
+            (fileNameBufferSize is the size of the buffer)
+  if extraField!=NULL, the extra field information will be copied in extraField
+            (extraFieldBufferSize is the size of the buffer).
+            This is the Central-header version of the extra field
+  if szComment!=NULL, the comment string of the file will be copied in szComment
+            (commentBufferSize is the size of the buffer)
+*/
+
+
+/** Addition for GDAL : START */
+
+extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64(unzFile file);
+
+/** Addition for GDAL : END */
+
+
+/***************************************************************************/
+/* for reading the content of the current zipfile, you can open it, read data
+   from it, and close it (you can close it before reading all the file)
+   */
+
+extern int ZEXPORT unzOpenCurrentFile(unzFile file);
+/*
+  Open for reading data the current file in the zipfile.
+  If there is no error, the return value is UNZ_OK.
+*/
+
+extern int ZEXPORT unzOpenCurrentFilePassword(unzFile file,
+                                              const char* password);
+/*
+  Open for reading data the current file in the zipfile.
+  password is a crypting password
+  If there is no error, the return value is UNZ_OK.
+*/
+
+extern int ZEXPORT unzOpenCurrentFile2(unzFile file,
+                                       int* method,
+                                       int* level,
+                                       int raw);
+/*
+  Same than unzOpenCurrentFile, but open for read raw the file (not uncompress)
+    if raw==1
+  *method will receive method of compression, *level will receive level of
+     compression
+  note : you can set level parameter as NULL (if you did not want known level,
+         but you CANNOT set method parameter as NULL
+*/
+
+extern int ZEXPORT unzOpenCurrentFile3(unzFile file,
+                                       int* method,
+                                       int* level,
+                                       int raw,
+                                       const char* password);
+/*
+  Same than unzOpenCurrentFile, but open for read raw the file (not uncompress)
+    if raw==1
+  *method will receive method of compression, *level will receive level of
+     compression
+  note : you can set level parameter as NULL (if you did not want known level,
+         but you CANNOT set method parameter as NULL
+*/
+
+
+extern int ZEXPORT unzCloseCurrentFile(unzFile file);
+/*
+  Close the file in zip opened with unzOpenCurrentFile
+  Return UNZ_CRCERROR if all the file was read but the CRC is not good
+*/
+
+extern int ZEXPORT unzReadCurrentFile(unzFile file,
+                                      voidp buf,
+                                      unsigned len);
+/*
+  Read bytes from the current file (opened by unzOpenCurrentFile)
+  buf contain buffer where data must be copied
+  len the size of buf.
+
+  return the number of byte copied if some bytes are copied
+  return 0 if the end of file was reached
+  return <0 with error code if there is an error
+    (UNZ_ERRNO for IO error, or zLib error for uncompress error)
+*/
+
+extern z_off_t ZEXPORT unztell(unzFile file);
+
+extern ZPOS64_T ZEXPORT unztell64(unzFile file);
+/*
+  Give the current position in uncompressed data
+*/
+
+extern int ZEXPORT unzeof(unzFile file);
+/*
+  return 1 if the end of file was reached, 0 elsewhere
+*/
+
+extern int ZEXPORT unzGetLocalExtrafield(unzFile file,
+                                         voidp buf,
+                                         unsigned len);
+/*
+  Read extra field from the current file (opened by unzOpenCurrentFile)
+  This is the local-header version of the extra field (sometimes, there is
+    more info in the local-header version than in the central-header)
+
+  if buf==NULL, it return the size of the local extra field
+
+  if buf!=NULL, len is the size of the buffer, the extra header is copied in
+    buf.
+  the return value is the number of bytes copied in buf, or (if <0)
+    the error code
+*/
+
+/***************************************************************************/
+
+/* Get the current file offset */
+extern ZPOS64_T ZEXPORT unzGetOffset64 (unzFile file);
+extern uLong ZEXPORT unzGetOffset (unzFile file);
+
+/* Set the current file offset */
+extern int ZEXPORT unzSetOffset64 (unzFile file, ZPOS64_T pos);
+extern int ZEXPORT unzSetOffset (unzFile file, uLong pos);
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _unz64_H */
diff --git a/compat/zlib/contrib/minizip/zip.c b/compat/zlib/contrib/minizip/zip.c
new file mode 100644
index 0000000..60bdffa
--- /dev/null
+++ b/compat/zlib/contrib/minizip/zip.c
@@ -0,0 +1,1956 @@
+/* zip.c -- IO on .zip files using zlib
+   Version 1.1, February 14h, 2010
+   part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications for Zip64 support
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+         For more info read MiniZip_info.txt
+
+         Changes
+   Oct-2009 - Mathias Svensson - Remove old C style function prototypes
+   Oct-2009 - Mathias Svensson - Added Zip64 Support when creating new file archives
+   Oct-2009 - Mathias Svensson - Did some code cleanup and refactoring to get better overview of some functions.
+   Oct-2009 - Mathias Svensson - Added zipRemoveExtraInfoBlock to strip extra field data from its ZIP64 data
+                                 It is used when recreating zip archive with RAW when deleting items from a zip.
+                                 ZIP64 data is automatically added to items that needs it, and existing ZIP64 data need to be removed.
+   Oct-2009 - Mathias Svensson - Added support for BZIP2 as compression mode (bzip2 lib is required)
+   Jan-2010 - back to unzip and minizip 1.0 name scheme, with compatibility layer
+
+*/
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <time.h>
+#include "zlib.h"
+#include "zip.h"
+
+#ifdef STDC
+#  include <stddef.h>
+#endif
+#ifdef NO_ERRNO_H
+    extern int errno;
+#else
+#   include <errno.h>
+#endif
+
+
+#ifndef local
+#  define local static
+#endif
+/* compile with -Dlocal if your debugger can't find static symbols */
+
+#ifndef VERSIONMADEBY
+# define VERSIONMADEBY   (0x0) /* platform dependent */
+#endif
+
+#ifndef Z_BUFSIZE
+#define Z_BUFSIZE (64*1024) //(16384)
+#endif
+
+#ifndef Z_MAXFILENAMEINZIP
+#define Z_MAXFILENAMEINZIP (256)
+#endif
+
+#ifndef ALLOC
+# define ALLOC(size) (malloc(size))
+#endif
+
+/*
+#define SIZECENTRALDIRITEM (0x2e)
+#define SIZEZIPLOCALHEADER (0x1e)
+*/
+
+/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */
+
+
+// NOT sure that this work on ALL platform
+#define MAKEULONG64(a, b) ((ZPOS64_T)(((unsigned long)(a)) | ((ZPOS64_T)((unsigned long)(b))) << 32))
+
+#ifndef SEEK_CUR
+#define SEEK_CUR    1
+#endif
+
+#ifndef SEEK_END
+#define SEEK_END    2
+#endif
+
+#ifndef SEEK_SET
+#define SEEK_SET    0
+#endif
+
+#ifndef DEF_MEM_LEVEL
+#if MAX_MEM_LEVEL >= 8
+#  define DEF_MEM_LEVEL 8
+#else
+#  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
+#endif
+#endif
+const char zip_copyright[] =" zip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll";
+
+
+#define SIZEDATA_INDATABLOCK (4096-(4*4))
+
+#define LOCALHEADERMAGIC    (0x04034b50)
+#define CENTRALHEADERMAGIC  (0x02014b50)
+#define ENDHEADERMAGIC      (0x06054b50)
+#define ZIP64ENDHEADERMAGIC      (0x6064b50)
+#define ZIP64ENDLOCHEADERMAGIC   (0x7064b50)
+
+#define FLAG_LOCALHEADER_OFFSET (0x06)
+#define CRC_LOCALHEADER_OFFSET  (0x0e)
+
+#define SIZECENTRALHEADER (0x2e) /* 46 */
+
+typedef struct linkedlist_datablock_internal_s
+{
+  struct linkedlist_datablock_internal_s* next_datablock;
+  uLong  avail_in_this_block;
+  uLong  filled_in_this_block;
+  uLong  unused; /* for future use and alignment */
+  unsigned char data[SIZEDATA_INDATABLOCK];
+} linkedlist_datablock_internal;
+
+typedef struct linkedlist_data_s
+{
+    linkedlist_datablock_internal* first_block;
+    linkedlist_datablock_internal* last_block;
+} linkedlist_data;
+
+
+typedef struct
+{
+    z_stream stream;            /* zLib stream structure for inflate */
+#ifdef HAVE_BZIP2
+    bz_stream bstream;          /* bzLib stream structure for bziped */
+#endif
+
+    int  stream_initialised;    /* 1 is stream is initialised */
+    uInt pos_in_buffered_data;  /* last written byte in buffered_data */
+
+    ZPOS64_T pos_local_header;     /* offset of the local header of the file
+                                     currently writing */
+    char* central_header;       /* central header data for the current file */
+    uLong size_centralExtra;
+    uLong size_centralheader;   /* size of the central header for cur file */
+    uLong size_centralExtraFree; /* Extra bytes allocated to the centralheader but that are not used */
+    uLong flag;                 /* flag of the file currently writing */
+
+    int  method;                /* compression method of file currently wr.*/
+    int  raw;                   /* 1 for directly writing raw data */
+    Byte buffered_data[Z_BUFSIZE];/* buffer contain compressed data to be writ*/
+    uLong dosDate;
+    uLong crc32;
+    int  encrypt;
+    int  zip64;               /* Add ZIP64 extended information in the extra field */
+    ZPOS64_T pos_zip64extrainfo;
+    ZPOS64_T totalCompressedData;
+    ZPOS64_T totalUncompressedData;
+#ifndef NOCRYPT
+    unsigned long keys[3];     /* keys defining the pseudo-random sequence */
+    const z_crc_t* pcrc_32_tab;
+    unsigned crypt_header_size;
+#endif
+} curfile64_info;
+
+typedef struct
+{
+    zlib_filefunc64_32_def z_filefunc;
+    voidpf filestream;        /* io structure of the zipfile */
+    linkedlist_data central_dir;/* datablock with central dir in construction*/
+    int  in_opened_file_inzip;  /* 1 if a file in the zip is currently writ.*/
+    curfile64_info ci;            /* info on the file currently writing */
+
+    ZPOS64_T begin_pos;            /* position of the beginning of the zipfile */
+    ZPOS64_T add_position_when_writing_offset;
+    ZPOS64_T number_entry;
+
+#ifndef NO_ADDFILEINEXISTINGZIP
+    char *globalcomment;
+#endif
+
+} zip64_internal;
+
+
+#ifndef NOCRYPT
+#define INCLUDECRYPTINGCODE_IFCRYPTALLOWED
+#include "crypt.h"
+#endif
+
+local linkedlist_datablock_internal* allocate_new_datablock(void) {
+    linkedlist_datablock_internal* ldi;
+    ldi = (linkedlist_datablock_internal*)
+                 ALLOC(sizeof(linkedlist_datablock_internal));
+    if (ldi!=NULL)
+    {
+        ldi->next_datablock = NULL ;
+        ldi->filled_in_this_block = 0 ;
+        ldi->avail_in_this_block = SIZEDATA_INDATABLOCK ;
+    }
+    return ldi;
+}
+
+local void free_datablock(linkedlist_datablock_internal* ldi) {
+    while (ldi!=NULL)
+    {
+        linkedlist_datablock_internal* ldinext = ldi->next_datablock;
+        free(ldi);
+        ldi = ldinext;
+    }
+}
+
+local void init_linkedlist(linkedlist_data* ll) {
+    ll->first_block = ll->last_block = NULL;
+}
+
+local void free_linkedlist(linkedlist_data* ll) {
+    free_datablock(ll->first_block);
+    ll->first_block = ll->last_block = NULL;
+}
+
+
+local int add_data_in_datablock(linkedlist_data* ll, const void* buf, uLong len) {
+    linkedlist_datablock_internal* ldi;
+    const unsigned char* from_copy;
+
+    if (ll==NULL)
+        return ZIP_INTERNALERROR;
+
+    if (ll->last_block == NULL)
+    {
+        ll->first_block = ll->last_block = allocate_new_datablock();
+        if (ll->first_block == NULL)
+            return ZIP_INTERNALERROR;
+    }
+
+    ldi = ll->last_block;
+    from_copy = (const unsigned char*)buf;
+
+    while (len>0)
+    {
+        uInt copy_this;
+        uInt i;
+        unsigned char* to_copy;
+
+        if (ldi->avail_in_this_block==0)
+        {
+            ldi->next_datablock = allocate_new_datablock();
+            if (ldi->next_datablock == NULL)
+                return ZIP_INTERNALERROR;
+            ldi = ldi->next_datablock ;
+            ll->last_block = ldi;
+        }
+
+        if (ldi->avail_in_this_block < len)
+            copy_this = (uInt)ldi->avail_in_this_block;
+        else
+            copy_this = (uInt)len;
+
+        to_copy = &(ldi->data[ldi->filled_in_this_block]);
+
+        for (i=0;i<copy_this;i++)
+            *(to_copy+i)=*(from_copy+i);
+
+        ldi->filled_in_this_block += copy_this;
+        ldi->avail_in_this_block -= copy_this;
+        from_copy += copy_this ;
+        len -= copy_this;
+    }
+    return ZIP_OK;
+}
+
+
+
+/****************************************************************************/
+
+#ifndef NO_ADDFILEINEXISTINGZIP
+/* ===========================================================================
+   Inputs a long in LSB order to the given file
+   nbByte == 1, 2 ,4 or 8 (byte, short or long, ZPOS64_T)
+*/
+
+local int zip64local_putValue(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T x, int nbByte) {
+    unsigned char buf[8];
+    int n;
+    for (n = 0; n < nbByte; n++)
+    {
+        buf[n] = (unsigned char)(x & 0xff);
+        x >>= 8;
+    }
+    if (x != 0)
+      {     /* data overflow - hack for ZIP64 (X Roche) */
+      for (n = 0; n < nbByte; n++)
+        {
+          buf[n] = 0xff;
+        }
+      }
+
+    if (ZWRITE64(*pzlib_filefunc_def,filestream,buf,(uLong)nbByte)!=(uLong)nbByte)
+        return ZIP_ERRNO;
+    else
+        return ZIP_OK;
+}
+
+local void zip64local_putValue_inmemory (void* dest, ZPOS64_T x, int nbByte) {
+    unsigned char* buf=(unsigned char*)dest;
+    int n;
+    for (n = 0; n < nbByte; n++) {
+        buf[n] = (unsigned char)(x & 0xff);
+        x >>= 8;
+    }
+
+    if (x != 0)
+    {     /* data overflow - hack for ZIP64 */
+       for (n = 0; n < nbByte; n++)
+       {
+          buf[n] = 0xff;
+       }
+    }
+}
+
+/****************************************************************************/
+
+
+local uLong zip64local_TmzDateToDosDate(const tm_zip* ptm) {
+    uLong year = (uLong)ptm->tm_year;
+    if (year>=1980)
+        year-=1980;
+    else if (year>=80)
+        year-=80;
+    return
+      (uLong) (((uLong)(ptm->tm_mday) + (32 * (uLong)(ptm->tm_mon+1)) + (512 * year)) << 16) |
+        (((uLong)ptm->tm_sec/2) + (32 * (uLong)ptm->tm_min) + (2048 * (uLong)ptm->tm_hour));
+}
+
+
+/****************************************************************************/
+
+local int zip64local_getByte(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, int* pi) {
+    unsigned char c;
+    int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,&c,1);
+    if (err==1)
+    {
+        *pi = (int)c;
+        return ZIP_OK;
+    }
+    else
+    {
+        if (ZERROR64(*pzlib_filefunc_def,filestream))
+            return ZIP_ERRNO;
+        else
+            return ZIP_EOF;
+    }
+}
+
+
+/* ===========================================================================
+   Reads a long in LSB order from the given gz_stream. Sets
+*/
+local int zip64local_getShort(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong* pX) {
+    uLong x ;
+    int i = 0;
+    int err;
+
+    err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x = (uLong)i;
+
+    if (err==ZIP_OK)
+        err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x += ((uLong)i)<<8;
+
+    if (err==ZIP_OK)
+        *pX = x;
+    else
+        *pX = 0;
+    return err;
+}
+
+local int zip64local_getLong(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong* pX) {
+    uLong x ;
+    int i = 0;
+    int err;
+
+    err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x = (uLong)i;
+
+    if (err==ZIP_OK)
+        err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x += ((uLong)i)<<8;
+
+    if (err==ZIP_OK)
+        err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x += ((uLong)i)<<16;
+
+    if (err==ZIP_OK)
+        err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x += ((uLong)i)<<24;
+
+    if (err==ZIP_OK)
+        *pX = x;
+    else
+        *pX = 0;
+    return err;
+}
+
+
+local int zip64local_getLong64(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T *pX) {
+  ZPOS64_T x;
+  int i = 0;
+  int err;
+
+  err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+  x = (ZPOS64_T)i;
+
+  if (err==ZIP_OK)
+    err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+  x += ((ZPOS64_T)i)<<8;
+
+  if (err==ZIP_OK)
+    err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+  x += ((ZPOS64_T)i)<<16;
+
+  if (err==ZIP_OK)
+    err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+  x += ((ZPOS64_T)i)<<24;
+
+  if (err==ZIP_OK)
+    err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+  x += ((ZPOS64_T)i)<<32;
+
+  if (err==ZIP_OK)
+    err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+  x += ((ZPOS64_T)i)<<40;
+
+  if (err==ZIP_OK)
+    err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+  x += ((ZPOS64_T)i)<<48;
+
+  if (err==ZIP_OK)
+    err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+  x += ((ZPOS64_T)i)<<56;
+
+  if (err==ZIP_OK)
+    *pX = x;
+  else
+    *pX = 0;
+
+  return err;
+}
+
+#ifndef BUFREADCOMMENT
+#define BUFREADCOMMENT (0x400)
+#endif
+/*
+  Locate the Central directory of a zipfile (at the end, just before
+    the global comment)
+*/
+local ZPOS64_T zip64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream) {
+  unsigned char* buf;
+  ZPOS64_T uSizeFile;
+  ZPOS64_T uBackRead;
+  ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
+  ZPOS64_T uPosFound=0;
+
+  if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
+    return 0;
+
+
+  uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
+
+  if (uMaxBack>uSizeFile)
+    uMaxBack = uSizeFile;
+
+  buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
+  if (buf==NULL)
+    return 0;
+
+  uBackRead = 4;
+  while (uBackRead<uMaxBack)
+  {
+    uLong uReadSize;
+    ZPOS64_T uReadPos ;
+    int i;
+    if (uBackRead+BUFREADCOMMENT>uMaxBack)
+      uBackRead = uMaxBack;
+    else
+      uBackRead+=BUFREADCOMMENT;
+    uReadPos = uSizeFile-uBackRead ;
+
+    uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
+      (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
+    if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+      break;
+
+    if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
+      break;
+
+    for (i=(int)uReadSize-3; (i--)>0;)
+      if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
+        ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06))
+      {
+        uPosFound = uReadPos+(unsigned)i;
+        break;
+      }
+
+    if (uPosFound!=0)
+      break;
+  }
+  free(buf);
+  return uPosFound;
+}
+
+/*
+Locate the End of Zip64 Central directory locator and from there find the CD of a zipfile (at the end, just before
+the global comment)
+*/
+local ZPOS64_T zip64local_SearchCentralDir64(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream) {
+  unsigned char* buf;
+  ZPOS64_T uSizeFile;
+  ZPOS64_T uBackRead;
+  ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
+  ZPOS64_T uPosFound=0;
+  uLong uL;
+  ZPOS64_T relativeOffset;
+
+  if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
+    return 0;
+
+  uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
+
+  if (uMaxBack>uSizeFile)
+    uMaxBack = uSizeFile;
+
+  buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
+  if (buf==NULL)
+    return 0;
+
+  uBackRead = 4;
+  while (uBackRead<uMaxBack)
+  {
+    uLong uReadSize;
+    ZPOS64_T uReadPos;
+    int i;
+    if (uBackRead+BUFREADCOMMENT>uMaxBack)
+      uBackRead = uMaxBack;
+    else
+      uBackRead+=BUFREADCOMMENT;
+    uReadPos = uSizeFile-uBackRead ;
+
+    uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
+      (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
+    if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+      break;
+
+    if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
+      break;
+
+    for (i=(int)uReadSize-3; (i--)>0;)
+    {
+      // Signature "0x07064b50" Zip64 end of central directory locater
+      if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && ((*(buf+i+2))==0x06) && ((*(buf+i+3))==0x07))
+      {
+        uPosFound = uReadPos+(unsigned)i;
+        break;
+      }
+    }
+
+      if (uPosFound!=0)
+        break;
+  }
+
+  free(buf);
+  if (uPosFound == 0)
+    return 0;
+
+  /* Zip64 end of central directory locator */
+  if (ZSEEK64(*pzlib_filefunc_def,filestream, uPosFound,ZLIB_FILEFUNC_SEEK_SET)!=0)
+    return 0;
+
+  /* the signature, already checked */
+  if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK)
+    return 0;
+
+  /* number of the disk with the start of the zip64 end of central directory */
+  if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK)
+    return 0;
+  if (uL != 0)
+    return 0;
+
+  /* relative offset of the zip64 end of central directory record */
+  if (zip64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=ZIP_OK)
+    return 0;
+
+  /* total number of disks */
+  if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK)
+    return 0;
+  if (uL != 1)
+    return 0;
+
+  /* Goto Zip64 end of central directory record */
+  if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0)
+    return 0;
+
+  /* the signature */
+  if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK)
+    return 0;
+
+  if (uL != 0x06064b50) // signature of 'Zip64 end of central directory'
+    return 0;
+
+  return relativeOffset;
+}
+
+local int LoadCentralDirectoryRecord(zip64_internal* pziinit) {
+  int err=ZIP_OK;
+  ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
+
+  ZPOS64_T size_central_dir;     /* size of the central directory  */
+  ZPOS64_T offset_central_dir;   /* offset of start of central directory */
+  ZPOS64_T central_pos;
+  uLong uL;
+
+  uLong number_disk;          /* number of the current disk, used for
+                              spanning ZIP, unsupported, always 0*/
+  uLong number_disk_with_CD;  /* number of the disk with central dir, used
+                              for spanning ZIP, unsupported, always 0*/
+  ZPOS64_T number_entry;
+  ZPOS64_T number_entry_CD;      /* total number of entries in
+                                the central dir
+                                (same than number_entry on nospan) */
+  uLong VersionMadeBy;
+  uLong VersionNeeded;
+  uLong size_comment;
+
+  int hasZIP64Record = 0;
+
+  // check first if we find a ZIP64 record
+  central_pos = zip64local_SearchCentralDir64(&pziinit->z_filefunc,pziinit->filestream);
+  if(central_pos > 0)
+  {
+    hasZIP64Record = 1;
+  }
+  else if(central_pos == 0)
+  {
+    central_pos = zip64local_SearchCentralDir(&pziinit->z_filefunc,pziinit->filestream);
+  }
+
+/* disable to allow appending to empty ZIP archive
+        if (central_pos==0)
+            err=ZIP_ERRNO;
+*/
+
+  if(hasZIP64Record)
+  {
+    ZPOS64_T sizeEndOfCentralDirectory;
+    if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, central_pos, ZLIB_FILEFUNC_SEEK_SET) != 0)
+      err=ZIP_ERRNO;
+
+    /* the signature, already checked */
+    if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&uL)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* size of zip64 end of central directory record */
+    if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream, &sizeEndOfCentralDirectory)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* version made by */
+    if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &VersionMadeBy)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* version needed to extract */
+    if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &VersionNeeded)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* number of this disk */
+    if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&number_disk)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* number of the disk with the start of the central directory */
+    if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&number_disk_with_CD)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* total number of entries in the central directory on this disk */
+    if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream, &number_entry)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* total number of entries in the central directory */
+    if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&number_entry_CD)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    if ((number_entry_CD!=number_entry) || (number_disk_with_CD!=0) || (number_disk!=0))
+      err=ZIP_BADZIPFILE;
+
+    /* size of the central directory */
+    if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&size_central_dir)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* offset of start of central directory with respect to the
+    starting disk number */
+    if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&offset_central_dir)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    // TODO..
+    // read the comment from the standard central header.
+    size_comment = 0;
+  }
+  else
+  {
+    // Read End of central Directory info
+    if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+      err=ZIP_ERRNO;
+
+    /* the signature, already checked */
+    if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&uL)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* number of this disk */
+    if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream,&number_disk)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* number of the disk with the start of the central directory */
+    if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream,&number_disk_with_CD)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* total number of entries in the central dir on this disk */
+    number_entry = 0;
+    if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK)
+      err=ZIP_ERRNO;
+    else
+      number_entry = uL;
+
+    /* total number of entries in the central dir */
+    number_entry_CD = 0;
+    if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK)
+      err=ZIP_ERRNO;
+    else
+      number_entry_CD = uL;
+
+    if ((number_entry_CD!=number_entry) || (number_disk_with_CD!=0) || (number_disk!=0))
+      err=ZIP_BADZIPFILE;
+
+    /* size of the central directory */
+    size_central_dir = 0;
+    if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK)
+      err=ZIP_ERRNO;
+    else
+      size_central_dir = uL;
+
+    /* offset of start of central directory with respect to the starting disk number */
+    offset_central_dir = 0;
+    if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK)
+      err=ZIP_ERRNO;
+    else
+      offset_central_dir = uL;
+
+
+    /* zipfile global comment length */
+    if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &size_comment)!=ZIP_OK)
+      err=ZIP_ERRNO;
+  }
+
+  if ((central_pos<offset_central_dir+size_central_dir) &&
+    (err==ZIP_OK))
+    err=ZIP_BADZIPFILE;
+
+  if (err!=ZIP_OK)
+  {
+    ZCLOSE64(pziinit->z_filefunc, pziinit->filestream);
+    return ZIP_ERRNO;
+  }
+
+  if (size_comment>0)
+  {
+    pziinit->globalcomment = (char*)ALLOC(size_comment+1);
+    if (pziinit->globalcomment)
+    {
+      size_comment = ZREAD64(pziinit->z_filefunc, pziinit->filestream, pziinit->globalcomment,size_comment);
+      pziinit->globalcomment[size_comment]=0;
+    }
+  }
+
+  byte_before_the_zipfile = central_pos - (offset_central_dir+size_central_dir);
+  pziinit->add_position_when_writing_offset = byte_before_the_zipfile;
+
+  {
+    ZPOS64_T size_central_dir_to_read = size_central_dir;
+    size_t buf_size = SIZEDATA_INDATABLOCK;
+    void* buf_read = (void*)ALLOC(buf_size);
+    if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, offset_central_dir + byte_before_the_zipfile, ZLIB_FILEFUNC_SEEK_SET) != 0)
+      err=ZIP_ERRNO;
+
+    while ((size_central_dir_to_read>0) && (err==ZIP_OK))
+    {
+      ZPOS64_T read_this = SIZEDATA_INDATABLOCK;
+      if (read_this > size_central_dir_to_read)
+        read_this = size_central_dir_to_read;
+
+      if (ZREAD64(pziinit->z_filefunc, pziinit->filestream,buf_read,(uLong)read_this) != read_this)
+        err=ZIP_ERRNO;
+
+      if (err==ZIP_OK)
+        err = add_data_in_datablock(&pziinit->central_dir,buf_read, (uLong)read_this);
+
+      size_central_dir_to_read-=read_this;
+    }
+    free(buf_read);
+  }
+  pziinit->begin_pos = byte_before_the_zipfile;
+  pziinit->number_entry = number_entry_CD;
+
+  if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, offset_central_dir+byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET) != 0)
+    err=ZIP_ERRNO;
+
+  return err;
+}
+
+
+#endif /* !NO_ADDFILEINEXISTINGZIP*/
+
+
+/************************************************************/
+extern zipFile ZEXPORT zipOpen3(const void *pathname, int append, zipcharpc* globalcomment, zlib_filefunc64_32_def* pzlib_filefunc64_32_def) {
+    zip64_internal ziinit;
+    zip64_internal* zi;
+    int err=ZIP_OK;
+
+    ziinit.z_filefunc.zseek32_file = NULL;
+    ziinit.z_filefunc.ztell32_file = NULL;
+    if (pzlib_filefunc64_32_def==NULL)
+        fill_fopen64_filefunc(&ziinit.z_filefunc.zfile_func64);
+    else
+        ziinit.z_filefunc = *pzlib_filefunc64_32_def;
+
+    ziinit.filestream = ZOPEN64(ziinit.z_filefunc,
+                  pathname,
+                  (append == APPEND_STATUS_CREATE) ?
+                  (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_CREATE) :
+                    (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_EXISTING));
+
+    if (ziinit.filestream == NULL)
+        return NULL;
+
+    if (append == APPEND_STATUS_CREATEAFTER)
+        ZSEEK64(ziinit.z_filefunc,ziinit.filestream,0,SEEK_END);
+
+    ziinit.begin_pos = ZTELL64(ziinit.z_filefunc,ziinit.filestream);
+    ziinit.in_opened_file_inzip = 0;
+    ziinit.ci.stream_initialised = 0;
+    ziinit.number_entry = 0;
+    ziinit.add_position_when_writing_offset = 0;
+    init_linkedlist(&(ziinit.central_dir));
+
+
+
+    zi = (zip64_internal*)ALLOC(sizeof(zip64_internal));
+    if (zi==NULL)
+    {
+        ZCLOSE64(ziinit.z_filefunc,ziinit.filestream);
+        return NULL;
+    }
+
+    /* now we add file in a zipfile */
+#    ifndef NO_ADDFILEINEXISTINGZIP
+    ziinit.globalcomment = NULL;
+    if (append == APPEND_STATUS_ADDINZIP)
+    {
+      // Read and Cache Central Directory Records
+      err = LoadCentralDirectoryRecord(&ziinit);
+    }
+
+    if (globalcomment)
+    {
+      *globalcomment = ziinit.globalcomment;
+    }
+#    endif /* !NO_ADDFILEINEXISTINGZIP*/
+
+    if (err != ZIP_OK)
+    {
+#    ifndef NO_ADDFILEINEXISTINGZIP
+        free(ziinit.globalcomment);
+#    endif /* !NO_ADDFILEINEXISTINGZIP*/
+        free(zi);
+        return NULL;
+    }
+    else
+    {
+        *zi = ziinit;
+        return (zipFile)zi;
+    }
+}
+
+extern zipFile ZEXPORT zipOpen2(const char *pathname, int append, zipcharpc* globalcomment, zlib_filefunc_def* pzlib_filefunc32_def) {
+    if (pzlib_filefunc32_def != NULL)
+    {
+        zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
+        fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def);
+        return zipOpen3(pathname, append, globalcomment, &zlib_filefunc64_32_def_fill);
+    }
+    else
+        return zipOpen3(pathname, append, globalcomment, NULL);
+}
+
+extern zipFile ZEXPORT zipOpen2_64(const void *pathname, int append, zipcharpc* globalcomment, zlib_filefunc64_def* pzlib_filefunc_def) {
+    if (pzlib_filefunc_def != NULL)
+    {
+        zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
+        zlib_filefunc64_32_def_fill.zfile_func64 = *pzlib_filefunc_def;
+        zlib_filefunc64_32_def_fill.ztell32_file = NULL;
+        zlib_filefunc64_32_def_fill.zseek32_file = NULL;
+        return zipOpen3(pathname, append, globalcomment, &zlib_filefunc64_32_def_fill);
+    }
+    else
+        return zipOpen3(pathname, append, globalcomment, NULL);
+}
+
+
+
+extern zipFile ZEXPORT zipOpen(const char* pathname, int append) {
+    return zipOpen3((const void*)pathname,append,NULL,NULL);
+}
+
+extern zipFile ZEXPORT zipOpen64(const void* pathname, int append) {
+    return zipOpen3(pathname,append,NULL,NULL);
+}
+
+local int Write_LocalFileHeader(zip64_internal* zi, const char* filename, uInt size_extrafield_local, const void* extrafield_local) {
+  /* write the local header */
+  int err;
+  uInt size_filename = (uInt)strlen(filename);
+  uInt size_extrafield = size_extrafield_local;
+
+  err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)LOCALHEADERMAGIC, 4);
+
+  if (err==ZIP_OK)
+  {
+    if(zi->ci.zip64)
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2);/* version needed to extract */
+    else
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)20,2);/* version needed to extract */
+  }
+
+  if (err==ZIP_OK)
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.flag,2);
+
+  if (err==ZIP_OK)
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.method,2);
+
+  if (err==ZIP_OK)
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.dosDate,4);
+
+  // CRC / Compressed size / Uncompressed size will be filled in later and rewritten later
+  if (err==ZIP_OK)
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* crc 32, unknown */
+  if (err==ZIP_OK)
+  {
+    if(zi->ci.zip64)
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xFFFFFFFF,4); /* compressed size, unknown */
+    else
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* compressed size, unknown */
+  }
+  if (err==ZIP_OK)
+  {
+    if(zi->ci.zip64)
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xFFFFFFFF,4); /* uncompressed size, unknown */
+    else
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* uncompressed size, unknown */
+  }
+
+  if (err==ZIP_OK)
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_filename,2);
+
+  if(zi->ci.zip64)
+  {
+    size_extrafield += 20;
+  }
+
+  if (err==ZIP_OK)
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_extrafield,2);
+
+  if ((err==ZIP_OK) && (size_filename > 0))
+  {
+    if (ZWRITE64(zi->z_filefunc,zi->filestream,filename,size_filename)!=size_filename)
+      err = ZIP_ERRNO;
+  }
+
+  if ((err==ZIP_OK) && (size_extrafield_local > 0))
+  {
+    if (ZWRITE64(zi->z_filefunc, zi->filestream, extrafield_local, size_extrafield_local) != size_extrafield_local)
+      err = ZIP_ERRNO;
+  }
+
+
+  if ((err==ZIP_OK) && (zi->ci.zip64))
+  {
+      // write the Zip64 extended info
+      short HeaderID = 1;
+      short DataSize = 16;
+      ZPOS64_T CompressedSize = 0;
+      ZPOS64_T UncompressedSize = 0;
+
+      // Remember position of Zip64 extended info for the local file header. (needed when we update size after done with file)
+      zi->ci.pos_zip64extrainfo = ZTELL64(zi->z_filefunc,zi->filestream);
+
+      err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)HeaderID,2);
+      err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)DataSize,2);
+
+      err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)UncompressedSize,8);
+      err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)CompressedSize,8);
+  }
+
+  return err;
+}
+
+/*
+ NOTE.
+ When writing RAW the ZIP64 extended information in extrafield_local and extrafield_global needs to be stripped
+ before calling this function it can be done with zipRemoveExtraInfoBlock
+
+ It is not done here because then we need to realloc a new buffer since parameters are 'const' and I want to minimize
+ unnecessary allocations.
+ */
+extern int ZEXPORT zipOpenNewFileInZip4_64(zipFile file, const char* filename, const zip_fileinfo* zipfi,
+                                           const void* extrafield_local, uInt size_extrafield_local,
+                                           const void* extrafield_global, uInt size_extrafield_global,
+                                           const char* comment, int method, int level, int raw,
+                                           int windowBits,int memLevel, int strategy,
+                                           const char* password, uLong crcForCrypting,
+                                           uLong versionMadeBy, uLong flagBase, int zip64) {
+    zip64_internal* zi;
+    uInt size_filename;
+    uInt size_comment;
+    uInt i;
+    int err = ZIP_OK;
+
+#    ifdef NOCRYPT
+    (crcForCrypting);
+    if (password != NULL)
+        return ZIP_PARAMERROR;
+#    endif
+
+    if (file == NULL)
+        return ZIP_PARAMERROR;
+
+#ifdef HAVE_BZIP2
+    if ((method!=0) && (method!=Z_DEFLATED) && (method!=Z_BZIP2ED))
+      return ZIP_PARAMERROR;
+#else
+    if ((method!=0) && (method!=Z_DEFLATED))
+      return ZIP_PARAMERROR;
+#endif
+
+    // The filename and comment length must fit in 16 bits.
+    if ((filename!=NULL) && (strlen(filename)>0xffff))
+        return ZIP_PARAMERROR;
+    if ((comment!=NULL) && (strlen(comment)>0xffff))
+        return ZIP_PARAMERROR;
+    // The extra field length must fit in 16 bits. If the member also requires
+    // a Zip64 extra block, that will also need to fit within that 16-bit
+    // length, but that will be checked for later.
+    if ((size_extrafield_local>0xffff) || (size_extrafield_global>0xffff))
+        return ZIP_PARAMERROR;
+
+    zi = (zip64_internal*)file;
+
+    if (zi->in_opened_file_inzip == 1)
+    {
+        err = zipCloseFileInZip (file);
+        if (err != ZIP_OK)
+            return err;
+    }
+
+    if (filename==NULL)
+        filename="-";
+
+    if (comment==NULL)
+        size_comment = 0;
+    else
+        size_comment = (uInt)strlen(comment);
+
+    size_filename = (uInt)strlen(filename);
+
+    if (zipfi == NULL)
+        zi->ci.dosDate = 0;
+    else
+    {
+        if (zipfi->dosDate != 0)
+            zi->ci.dosDate = zipfi->dosDate;
+        else
+          zi->ci.dosDate = zip64local_TmzDateToDosDate(&zipfi->tmz_date);
+    }
+
+    zi->ci.flag = flagBase;
+    if ((level==8) || (level==9))
+      zi->ci.flag |= 2;
+    if (level==2)
+      zi->ci.flag |= 4;
+    if (level==1)
+      zi->ci.flag |= 6;
+    if (password != NULL)
+      zi->ci.flag |= 1;
+
+    zi->ci.crc32 = 0;
+    zi->ci.method = method;
+    zi->ci.encrypt = 0;
+    zi->ci.stream_initialised = 0;
+    zi->ci.pos_in_buffered_data = 0;
+    zi->ci.raw = raw;
+    zi->ci.pos_local_header = ZTELL64(zi->z_filefunc,zi->filestream);
+
+    zi->ci.size_centralheader = SIZECENTRALHEADER + size_filename + size_extrafield_global + size_comment;
+    zi->ci.size_centralExtraFree = 32; // Extra space we have reserved in case we need to add ZIP64 extra info data
+
+    zi->ci.central_header = (char*)ALLOC((uInt)zi->ci.size_centralheader + zi->ci.size_centralExtraFree);
+
+    zi->ci.size_centralExtra = size_extrafield_global;
+    zip64local_putValue_inmemory(zi->ci.central_header,(uLong)CENTRALHEADERMAGIC,4);
+    /* version info */
+    zip64local_putValue_inmemory(zi->ci.central_header+4,(uLong)versionMadeBy,2);
+    zip64local_putValue_inmemory(zi->ci.central_header+6,(uLong)20,2);
+    zip64local_putValue_inmemory(zi->ci.central_header+8,(uLong)zi->ci.flag,2);
+    zip64local_putValue_inmemory(zi->ci.central_header+10,(uLong)zi->ci.method,2);
+    zip64local_putValue_inmemory(zi->ci.central_header+12,(uLong)zi->ci.dosDate,4);
+    zip64local_putValue_inmemory(zi->ci.central_header+16,(uLong)0,4); /*crc*/
+    zip64local_putValue_inmemory(zi->ci.central_header+20,(uLong)0,4); /*compr size*/
+    zip64local_putValue_inmemory(zi->ci.central_header+24,(uLong)0,4); /*uncompr size*/
+    zip64local_putValue_inmemory(zi->ci.central_header+28,(uLong)size_filename,2);
+    zip64local_putValue_inmemory(zi->ci.central_header+30,(uLong)size_extrafield_global,2);
+    zip64local_putValue_inmemory(zi->ci.central_header+32,(uLong)size_comment,2);
+    zip64local_putValue_inmemory(zi->ci.central_header+34,(uLong)0,2); /*disk nm start*/
+
+    if (zipfi==NULL)
+        zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)0,2);
+    else
+        zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)zipfi->internal_fa,2);
+
+    if (zipfi==NULL)
+        zip64local_putValue_inmemory(zi->ci.central_header+38,(uLong)0,4);
+    else
+        zip64local_putValue_inmemory(zi->ci.central_header+38,(uLong)zipfi->external_fa,4);
+
+    if(zi->ci.pos_local_header >= 0xffffffff)
+      zip64local_putValue_inmemory(zi->ci.central_header+42,(uLong)0xffffffff,4);
+    else
+      zip64local_putValue_inmemory(zi->ci.central_header+42,(uLong)zi->ci.pos_local_header - zi->add_position_when_writing_offset,4);
+
+    for (i=0;i<size_filename;i++)
+        *(zi->ci.central_header+SIZECENTRALHEADER+i) = *(filename+i);
+
+    for (i=0;i<size_extrafield_global;i++)
+        *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+i) =
+              *(((const char*)extrafield_global)+i);
+
+    for (i=0;i<size_comment;i++)
+        *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+
+              size_extrafield_global+i) = *(comment+i);
+    if (zi->ci.central_header == NULL)
+        return ZIP_INTERNALERROR;
+
+    zi->ci.zip64 = zip64;
+    zi->ci.totalCompressedData = 0;
+    zi->ci.totalUncompressedData = 0;
+    zi->ci.pos_zip64extrainfo = 0;
+
+    err = Write_LocalFileHeader(zi, filename, size_extrafield_local, extrafield_local);
+
+#ifdef HAVE_BZIP2
+    zi->ci.bstream.avail_in = (uInt)0;
+    zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE;
+    zi->ci.bstream.next_out = (char*)zi->ci.buffered_data;
+    zi->ci.bstream.total_in_hi32 = 0;
+    zi->ci.bstream.total_in_lo32 = 0;
+    zi->ci.bstream.total_out_hi32 = 0;
+    zi->ci.bstream.total_out_lo32 = 0;
+#endif
+
+    zi->ci.stream.avail_in = (uInt)0;
+    zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
+    zi->ci.stream.next_out = zi->ci.buffered_data;
+    zi->ci.stream.total_in = 0;
+    zi->ci.stream.total_out = 0;
+    zi->ci.stream.data_type = Z_BINARY;
+
+#ifdef HAVE_BZIP2
+    if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED || zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw))
+#else
+    if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
+#endif
+    {
+        if(zi->ci.method == Z_DEFLATED)
+        {
+          zi->ci.stream.zalloc = (alloc_func)0;
+          zi->ci.stream.zfree = (free_func)0;
+          zi->ci.stream.opaque = (voidpf)0;
+
+          if (windowBits>0)
+              windowBits = -windowBits;
+
+          err = deflateInit2(&zi->ci.stream, level, Z_DEFLATED, windowBits, memLevel, strategy);
+
+          if (err==Z_OK)
+              zi->ci.stream_initialised = Z_DEFLATED;
+        }
+        else if(zi->ci.method == Z_BZIP2ED)
+        {
+#ifdef HAVE_BZIP2
+            // Init BZip stuff here
+          zi->ci.bstream.bzalloc = 0;
+          zi->ci.bstream.bzfree = 0;
+          zi->ci.bstream.opaque = (voidpf)0;
+
+          err = BZ2_bzCompressInit(&zi->ci.bstream, level, 0,35);
+          if(err == BZ_OK)
+            zi->ci.stream_initialised = Z_BZIP2ED;
+#endif
+        }
+
+    }
+
+#    ifndef NOCRYPT
+    zi->ci.crypt_header_size = 0;
+    if ((err==Z_OK) && (password != NULL))
+    {
+        unsigned char bufHead[RAND_HEAD_LEN];
+        unsigned int sizeHead;
+        zi->ci.encrypt = 1;
+        zi->ci.pcrc_32_tab = get_crc_table();
+        /*init_keys(password,zi->ci.keys,zi->ci.pcrc_32_tab);*/
+
+        sizeHead=crypthead(password,bufHead,RAND_HEAD_LEN,zi->ci.keys,zi->ci.pcrc_32_tab,crcForCrypting);
+        zi->ci.crypt_header_size = sizeHead;
+
+        if (ZWRITE64(zi->z_filefunc,zi->filestream,bufHead,sizeHead) != sizeHead)
+                err = ZIP_ERRNO;
+    }
+#    endif
+
+    if (err==Z_OK)
+        zi->in_opened_file_inzip = 1;
+    return err;
+}
+
+extern int ZEXPORT zipOpenNewFileInZip4(zipFile file, const char* filename, const zip_fileinfo* zipfi,
+                                        const void* extrafield_local, uInt size_extrafield_local,
+                                        const void* extrafield_global, uInt size_extrafield_global,
+                                        const char* comment, int method, int level, int raw,
+                                        int windowBits,int memLevel, int strategy,
+                                        const char* password, uLong crcForCrypting,
+                                        uLong versionMadeBy, uLong flagBase) {
+    return zipOpenNewFileInZip4_64(file, filename, zipfi,
+                                   extrafield_local, size_extrafield_local,
+                                   extrafield_global, size_extrafield_global,
+                                   comment, method, level, raw,
+                                   windowBits, memLevel, strategy,
+                                   password, crcForCrypting, versionMadeBy, flagBase, 0);
+}
+
+extern int ZEXPORT zipOpenNewFileInZip3(zipFile file, const char* filename, const zip_fileinfo* zipfi,
+                                        const void* extrafield_local, uInt size_extrafield_local,
+                                        const void* extrafield_global, uInt size_extrafield_global,
+                                        const char* comment, int method, int level, int raw,
+                                        int windowBits,int memLevel, int strategy,
+                                        const char* password, uLong crcForCrypting) {
+    return zipOpenNewFileInZip4_64(file, filename, zipfi,
+                                   extrafield_local, size_extrafield_local,
+                                   extrafield_global, size_extrafield_global,
+                                   comment, method, level, raw,
+                                   windowBits, memLevel, strategy,
+                                   password, crcForCrypting, VERSIONMADEBY, 0, 0);
+}
+
+extern int ZEXPORT zipOpenNewFileInZip3_64(zipFile file, const char* filename, const zip_fileinfo* zipfi,
+                                         const void* extrafield_local, uInt size_extrafield_local,
+                                         const void* extrafield_global, uInt size_extrafield_global,
+                                         const char* comment, int method, int level, int raw,
+                                         int windowBits,int memLevel, int strategy,
+                                         const char* password, uLong crcForCrypting, int zip64) {
+    return zipOpenNewFileInZip4_64(file, filename, zipfi,
+                                   extrafield_local, size_extrafield_local,
+                                   extrafield_global, size_extrafield_global,
+                                   comment, method, level, raw,
+                                   windowBits, memLevel, strategy,
+                                   password, crcForCrypting, VERSIONMADEBY, 0, zip64);
+}
+
+extern int ZEXPORT zipOpenNewFileInZip2(zipFile file, const char* filename, const zip_fileinfo* zipfi,
+                                        const void* extrafield_local, uInt size_extrafield_local,
+                                        const void* extrafield_global, uInt size_extrafield_global,
+                                        const char* comment, int method, int level, int raw) {
+    return zipOpenNewFileInZip4_64(file, filename, zipfi,
+                                   extrafield_local, size_extrafield_local,
+                                   extrafield_global, size_extrafield_global,
+                                   comment, method, level, raw,
+                                   -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
+                                   NULL, 0, VERSIONMADEBY, 0, 0);
+}
+
+extern int ZEXPORT zipOpenNewFileInZip2_64(zipFile file, const char* filename, const zip_fileinfo* zipfi,
+                                           const void* extrafield_local, uInt size_extrafield_local,
+                                           const void* extrafield_global, uInt size_extrafield_global,
+                                           const char* comment, int method, int level, int raw, int zip64) {
+    return zipOpenNewFileInZip4_64(file, filename, zipfi,
+                                   extrafield_local, size_extrafield_local,
+                                   extrafield_global, size_extrafield_global,
+                                   comment, method, level, raw,
+                                   -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
+                                   NULL, 0, VERSIONMADEBY, 0, zip64);
+}
+
+extern int ZEXPORT zipOpenNewFileInZip64(zipFile file, const char* filename, const zip_fileinfo* zipfi,
+                                         const void* extrafield_local, uInt size_extrafield_local,
+                                         const void*extrafield_global, uInt size_extrafield_global,
+                                         const char* comment, int method, int level, int zip64) {
+    return zipOpenNewFileInZip4_64(file, filename, zipfi,
+                                   extrafield_local, size_extrafield_local,
+                                   extrafield_global, size_extrafield_global,
+                                   comment, method, level, 0,
+                                   -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
+                                   NULL, 0, VERSIONMADEBY, 0, zip64);
+}
+
+extern int ZEXPORT zipOpenNewFileInZip(zipFile file, const char* filename, const zip_fileinfo* zipfi,
+                                       const void* extrafield_local, uInt size_extrafield_local,
+                                       const void*extrafield_global, uInt size_extrafield_global,
+                                       const char* comment, int method, int level) {
+    return zipOpenNewFileInZip4_64(file, filename, zipfi,
+                                   extrafield_local, size_extrafield_local,
+                                   extrafield_global, size_extrafield_global,
+                                   comment, method, level, 0,
+                                   -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
+                                   NULL, 0, VERSIONMADEBY, 0, 0);
+}
+
+local int zip64FlushWriteBuffer(zip64_internal* zi) {
+    int err=ZIP_OK;
+
+    if (zi->ci.encrypt != 0)
+    {
+#ifndef NOCRYPT
+        uInt i;
+        int t;
+        for (i=0;i<zi->ci.pos_in_buffered_data;i++)
+            zi->ci.buffered_data[i] = zencode(zi->ci.keys, zi->ci.pcrc_32_tab, zi->ci.buffered_data[i],t);
+#endif
+    }
+
+    if (ZWRITE64(zi->z_filefunc,zi->filestream,zi->ci.buffered_data,zi->ci.pos_in_buffered_data) != zi->ci.pos_in_buffered_data)
+      err = ZIP_ERRNO;
+
+    zi->ci.totalCompressedData += zi->ci.pos_in_buffered_data;
+
+#ifdef HAVE_BZIP2
+    if(zi->ci.method == Z_BZIP2ED)
+    {
+      zi->ci.totalUncompressedData += zi->ci.bstream.total_in_lo32;
+      zi->ci.bstream.total_in_lo32 = 0;
+      zi->ci.bstream.total_in_hi32 = 0;
+    }
+    else
+#endif
+    {
+      zi->ci.totalUncompressedData += zi->ci.stream.total_in;
+      zi->ci.stream.total_in = 0;
+    }
+
+
+    zi->ci.pos_in_buffered_data = 0;
+
+    return err;
+}
+
+extern int ZEXPORT zipWriteInFileInZip(zipFile file, const void* buf, unsigned int len) {
+    zip64_internal* zi;
+    int err=ZIP_OK;
+
+    if (file == NULL)
+        return ZIP_PARAMERROR;
+    zi = (zip64_internal*)file;
+
+    if (zi->in_opened_file_inzip == 0)
+        return ZIP_PARAMERROR;
+
+    zi->ci.crc32 = crc32(zi->ci.crc32,buf,(uInt)len);
+
+#ifdef HAVE_BZIP2
+    if(zi->ci.method == Z_BZIP2ED && (!zi->ci.raw))
+    {
+      zi->ci.bstream.next_in = (void*)buf;
+      zi->ci.bstream.avail_in = len;
+      err = BZ_RUN_OK;
+
+      while ((err==BZ_RUN_OK) && (zi->ci.bstream.avail_in>0))
+      {
+        if (zi->ci.bstream.avail_out == 0)
+        {
+          if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
+            err = ZIP_ERRNO;
+          zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE;
+          zi->ci.bstream.next_out = (char*)zi->ci.buffered_data;
+        }
+
+
+        if(err != BZ_RUN_OK)
+          break;
+
+        if ((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw))
+        {
+          uLong uTotalOutBefore_lo = zi->ci.bstream.total_out_lo32;
+//          uLong uTotalOutBefore_hi = zi->ci.bstream.total_out_hi32;
+          err=BZ2_bzCompress(&zi->ci.bstream,  BZ_RUN);
+
+          zi->ci.pos_in_buffered_data += (uInt)(zi->ci.bstream.total_out_lo32 - uTotalOutBefore_lo) ;
+        }
+      }
+
+      if(err == BZ_RUN_OK)
+        err = ZIP_OK;
+    }
+    else
+#endif
+    {
+      zi->ci.stream.next_in = (Bytef*)(uintptr_t)buf;
+      zi->ci.stream.avail_in = len;
+
+      while ((err==ZIP_OK) && (zi->ci.stream.avail_in>0))
+      {
+          if (zi->ci.stream.avail_out == 0)
+          {
+              if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
+                  err = ZIP_ERRNO;
+              zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
+              zi->ci.stream.next_out = zi->ci.buffered_data;
+          }
+
+
+          if(err != ZIP_OK)
+              break;
+
+          if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
+          {
+              uLong uTotalOutBefore = zi->ci.stream.total_out;
+              err=deflate(&zi->ci.stream,  Z_NO_FLUSH);
+
+              zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ;
+          }
+          else
+          {
+              uInt copy_this,i;
+              if (zi->ci.stream.avail_in < zi->ci.stream.avail_out)
+                  copy_this = zi->ci.stream.avail_in;
+              else
+                  copy_this = zi->ci.stream.avail_out;
+
+              for (i = 0; i < copy_this; i++)
+                  *(((char*)zi->ci.stream.next_out)+i) =
+                      *(((const char*)zi->ci.stream.next_in)+i);
+              {
+                  zi->ci.stream.avail_in -= copy_this;
+                  zi->ci.stream.avail_out-= copy_this;
+                  zi->ci.stream.next_in+= copy_this;
+                  zi->ci.stream.next_out+= copy_this;
+                  zi->ci.stream.total_in+= copy_this;
+                  zi->ci.stream.total_out+= copy_this;
+                  zi->ci.pos_in_buffered_data += copy_this;
+              }
+          }
+      }// while(...)
+    }
+
+    return err;
+}
+
+extern int ZEXPORT zipCloseFileInZipRaw(zipFile file, uLong uncompressed_size, uLong crc32) {
+    return zipCloseFileInZipRaw64 (file, uncompressed_size, crc32);
+}
+
+extern int ZEXPORT zipCloseFileInZipRaw64(zipFile file, ZPOS64_T uncompressed_size, uLong crc32) {
+    zip64_internal* zi;
+    ZPOS64_T compressed_size;
+    uLong invalidValue = 0xffffffff;
+    unsigned datasize = 0;
+    int err=ZIP_OK;
+
+    if (file == NULL)
+        return ZIP_PARAMERROR;
+    zi = (zip64_internal*)file;
+
+    if (zi->in_opened_file_inzip == 0)
+        return ZIP_PARAMERROR;
+    zi->ci.stream.avail_in = 0;
+
+    if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
+                {
+                        while (err==ZIP_OK)
+                        {
+                                uLong uTotalOutBefore;
+                                if (zi->ci.stream.avail_out == 0)
+                                {
+                                        if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
+                                                err = ZIP_ERRNO;
+                                        zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
+                                        zi->ci.stream.next_out = zi->ci.buffered_data;
+                                }
+                                uTotalOutBefore = zi->ci.stream.total_out;
+                                err=deflate(&zi->ci.stream,  Z_FINISH);
+                                zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ;
+                        }
+                }
+    else if ((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw))
+    {
+#ifdef HAVE_BZIP2
+      err = BZ_FINISH_OK;
+      while (err==BZ_FINISH_OK)
+      {
+        uLong uTotalOutBefore;
+        if (zi->ci.bstream.avail_out == 0)
+        {
+          if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
+            err = ZIP_ERRNO;
+          zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE;
+          zi->ci.bstream.next_out = (char*)zi->ci.buffered_data;
+        }
+        uTotalOutBefore = zi->ci.bstream.total_out_lo32;
+        err=BZ2_bzCompress(&zi->ci.bstream,  BZ_FINISH);
+        if(err == BZ_STREAM_END)
+          err = Z_STREAM_END;
+
+        zi->ci.pos_in_buffered_data += (uInt)(zi->ci.bstream.total_out_lo32 - uTotalOutBefore);
+      }
+
+      if(err == BZ_FINISH_OK)
+        err = ZIP_OK;
+#endif
+    }
+
+    if (err==Z_STREAM_END)
+        err=ZIP_OK; /* this is normal */
+
+    if ((zi->ci.pos_in_buffered_data>0) && (err==ZIP_OK))
+                {
+        if (zip64FlushWriteBuffer(zi)==ZIP_ERRNO)
+            err = ZIP_ERRNO;
+                }
+
+    if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
+    {
+        int tmp_err = deflateEnd(&zi->ci.stream);
+        if (err == ZIP_OK)
+            err = tmp_err;
+        zi->ci.stream_initialised = 0;
+    }
+#ifdef HAVE_BZIP2
+    else if((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw))
+    {
+      int tmperr = BZ2_bzCompressEnd(&zi->ci.bstream);
+                        if (err==ZIP_OK)
+                                err = tmperr;
+                        zi->ci.stream_initialised = 0;
+    }
+#endif
+
+    if (!zi->ci.raw)
+    {
+        crc32 = (uLong)zi->ci.crc32;
+        uncompressed_size = zi->ci.totalUncompressedData;
+    }
+    compressed_size = zi->ci.totalCompressedData;
+
+#    ifndef NOCRYPT
+    compressed_size += zi->ci.crypt_header_size;
+#    endif
+
+    // update Current Item crc and sizes,
+    if(compressed_size >= 0xffffffff || uncompressed_size >= 0xffffffff || zi->ci.pos_local_header >= 0xffffffff)
+    {
+      /*version Made by*/
+      zip64local_putValue_inmemory(zi->ci.central_header+4,(uLong)45,2);
+      /*version needed*/
+      zip64local_putValue_inmemory(zi->ci.central_header+6,(uLong)45,2);
+
+    }
+
+    zip64local_putValue_inmemory(zi->ci.central_header+16,crc32,4); /*crc*/
+
+
+    if(compressed_size >= 0xffffffff)
+      zip64local_putValue_inmemory(zi->ci.central_header+20, invalidValue,4); /*compr size*/
+    else
+      zip64local_putValue_inmemory(zi->ci.central_header+20, compressed_size,4); /*compr size*/
+
+    /// set internal file attributes field
+    if (zi->ci.stream.data_type == Z_ASCII)
+        zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)Z_ASCII,2);
+
+    if(uncompressed_size >= 0xffffffff)
+      zip64local_putValue_inmemory(zi->ci.central_header+24, invalidValue,4); /*uncompr size*/
+    else
+      zip64local_putValue_inmemory(zi->ci.central_header+24, uncompressed_size,4); /*uncompr size*/
+
+    // Add ZIP64 extra info field for uncompressed size
+    if(uncompressed_size >= 0xffffffff)
+      datasize += 8;
+
+    // Add ZIP64 extra info field for compressed size
+    if(compressed_size >= 0xffffffff)
+      datasize += 8;
+
+    // Add ZIP64 extra info field for relative offset to local file header of current file
+    if(zi->ci.pos_local_header >= 0xffffffff)
+      datasize += 8;
+
+    if(datasize > 0)
+    {
+      char* p = NULL;
+
+      if((uLong)(datasize + 4) > zi->ci.size_centralExtraFree)
+      {
+        // we cannot write more data to the buffer that we have room for.
+        return ZIP_BADZIPFILE;
+      }
+
+      p = zi->ci.central_header + zi->ci.size_centralheader;
+
+      // Add Extra Information Header for 'ZIP64 information'
+      zip64local_putValue_inmemory(p, 0x0001, 2); // HeaderID
+      p += 2;
+      zip64local_putValue_inmemory(p, datasize, 2); // DataSize
+      p += 2;
+
+      if(uncompressed_size >= 0xffffffff)
+      {
+        zip64local_putValue_inmemory(p, uncompressed_size, 8);
+        p += 8;
+      }
+
+      if(compressed_size >= 0xffffffff)
+      {
+        zip64local_putValue_inmemory(p, compressed_size, 8);
+        p += 8;
+      }
+
+      if(zi->ci.pos_local_header >= 0xffffffff)
+      {
+        zip64local_putValue_inmemory(p, zi->ci.pos_local_header, 8);
+        p += 8;
+      }
+
+      // Update how much extra free space we got in the memory buffer
+      // and increase the centralheader size so the new ZIP64 fields are included
+      // ( 4 below is the size of HeaderID and DataSize field )
+      zi->ci.size_centralExtraFree -= datasize + 4;
+      zi->ci.size_centralheader += datasize + 4;
+
+      // Update the extra info size field
+      zi->ci.size_centralExtra += datasize + 4;
+      zip64local_putValue_inmemory(zi->ci.central_header+30,(uLong)zi->ci.size_centralExtra,2);
+    }
+
+    if (err==ZIP_OK)
+        err = add_data_in_datablock(&zi->central_dir, zi->ci.central_header, (uLong)zi->ci.size_centralheader);
+
+    free(zi->ci.central_header);
+
+    if (err==ZIP_OK)
+    {
+        // Update the LocalFileHeader with the new values.
+
+        ZPOS64_T cur_pos_inzip = ZTELL64(zi->z_filefunc,zi->filestream);
+
+        if (ZSEEK64(zi->z_filefunc,zi->filestream, zi->ci.pos_local_header + 14,ZLIB_FILEFUNC_SEEK_SET)!=0)
+            err = ZIP_ERRNO;
+
+        if (err==ZIP_OK)
+            err = zip64local_putValue(&zi->z_filefunc,zi->filestream,crc32,4); /* crc 32, unknown */
+
+        if(uncompressed_size >= 0xffffffff || compressed_size >= 0xffffffff )
+        {
+          if(zi->ci.pos_zip64extrainfo > 0)
+          {
+            // Update the size in the ZIP64 extended field.
+            if (ZSEEK64(zi->z_filefunc,zi->filestream, zi->ci.pos_zip64extrainfo + 4,ZLIB_FILEFUNC_SEEK_SET)!=0)
+              err = ZIP_ERRNO;
+
+            if (err==ZIP_OK) /* compressed size, unknown */
+              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, uncompressed_size, 8);
+
+            if (err==ZIP_OK) /* uncompressed size, unknown */
+              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, compressed_size, 8);
+          }
+          else
+              err = ZIP_BADZIPFILE; // Caller passed zip64 = 0, so no room for zip64 info -> fatal
+        }
+        else
+        {
+          if (err==ZIP_OK) /* compressed size, unknown */
+              err = zip64local_putValue(&zi->z_filefunc,zi->filestream,compressed_size,4);
+
+          if (err==ZIP_OK) /* uncompressed size, unknown */
+              err = zip64local_putValue(&zi->z_filefunc,zi->filestream,uncompressed_size,4);
+        }
+
+        if (ZSEEK64(zi->z_filefunc,zi->filestream, cur_pos_inzip,ZLIB_FILEFUNC_SEEK_SET)!=0)
+            err = ZIP_ERRNO;
+    }
+
+    zi->number_entry ++;
+    zi->in_opened_file_inzip = 0;
+
+    return err;
+}
+
+extern int ZEXPORT zipCloseFileInZip(zipFile file) {
+    return zipCloseFileInZipRaw (file,0,0);
+}
+
+local int Write_Zip64EndOfCentralDirectoryLocator(zip64_internal* zi, ZPOS64_T zip64eocd_pos_inzip) {
+  int err = ZIP_OK;
+  ZPOS64_T pos = zip64eocd_pos_inzip - zi->add_position_when_writing_offset;
+
+  err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ZIP64ENDLOCHEADERMAGIC,4);
+
+  /*num disks*/
+    if (err==ZIP_OK) /* number of the disk with the start of the central directory */
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4);
+
+  /*relative offset*/
+    if (err==ZIP_OK) /* Relative offset to the Zip64EndOfCentralDirectory */
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream, pos,8);
+
+  /*total disks*/ /* Do not support spawning of disk so always say 1 here*/
+    if (err==ZIP_OK) /* number of the disk with the start of the central directory */
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)1,4);
+
+    return err;
+}
+
+local int Write_Zip64EndOfCentralDirectoryRecord(zip64_internal* zi, uLong size_centraldir, ZPOS64_T centraldir_pos_inzip) {
+  int err = ZIP_OK;
+
+  uLong Zip64DataSize = 44;
+
+  err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ZIP64ENDHEADERMAGIC,4);
+
+  if (err==ZIP_OK) /* size of this 'zip64 end of central directory' */
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(ZPOS64_T)Zip64DataSize,8); // why ZPOS64_T of this ?
+
+  if (err==ZIP_OK) /* version made by */
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2);
+
+  if (err==ZIP_OK) /* version needed */
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2);
+
+  if (err==ZIP_OK) /* number of this disk */
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4);
+
+  if (err==ZIP_OK) /* number of the disk with the start of the central directory */
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4);
+
+  if (err==ZIP_OK) /* total number of entries in the central dir on this disk */
+    err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8);
+
+  if (err==ZIP_OK) /* total number of entries in the central dir */
+    err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8);
+
+  if (err==ZIP_OK) /* size of the central directory */
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(ZPOS64_T)size_centraldir,8);
+
+  if (err==ZIP_OK) /* offset of start of central directory with respect to the starting disk number */
+  {
+    ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writing_offset;
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (ZPOS64_T)pos,8);
+  }
+  return err;
+}
+
+local int Write_EndOfCentralDirectoryRecord(zip64_internal* zi, uLong size_centraldir, ZPOS64_T centraldir_pos_inzip) {
+  int err = ZIP_OK;
+
+  /*signature*/
+  err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ENDHEADERMAGIC,4);
+
+  if (err==ZIP_OK) /* number of this disk */
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2);
+
+  if (err==ZIP_OK) /* number of the disk with the start of the central directory */
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2);
+
+  if (err==ZIP_OK) /* total number of entries in the central dir on this disk */
+  {
+    {
+      if(zi->number_entry >= 0xFFFF)
+        err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xffff,2); // use value in ZIP64 record
+      else
+        err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2);
+    }
+  }
+
+  if (err==ZIP_OK) /* total number of entries in the central dir */
+  {
+    if(zi->number_entry >= 0xFFFF)
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xffff,2); // use value in ZIP64 record
+    else
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2);
+  }
+
+  if (err==ZIP_OK) /* size of the central directory */
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_centraldir,4);
+
+  if (err==ZIP_OK) /* offset of start of central directory with respect to the starting disk number */
+  {
+    ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writing_offset;
+    if(pos >= 0xffffffff)
+    {
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)0xffffffff,4);
+    }
+    else
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)(centraldir_pos_inzip - zi->add_position_when_writing_offset),4);
+  }
+
+   return err;
+}
+
+local int Write_GlobalComment(zip64_internal* zi, const char* global_comment) {
+  int err = ZIP_OK;
+  uInt size_global_comment = 0;
+
+  if(global_comment != NULL)
+    size_global_comment = (uInt)strlen(global_comment);
+
+  err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_global_comment,2);
+
+  if (err == ZIP_OK && size_global_comment > 0)
+  {
+    if (ZWRITE64(zi->z_filefunc,zi->filestream, global_comment, size_global_comment) != size_global_comment)
+      err = ZIP_ERRNO;
+  }
+  return err;
+}
+
+extern int ZEXPORT zipClose(zipFile file, const char* global_comment) {
+    zip64_internal* zi;
+    int err = 0;
+    uLong size_centraldir = 0;
+    ZPOS64_T centraldir_pos_inzip;
+    ZPOS64_T pos;
+
+    if (file == NULL)
+        return ZIP_PARAMERROR;
+
+    zi = (zip64_internal*)file;
+
+    if (zi->in_opened_file_inzip == 1)
+    {
+        err = zipCloseFileInZip (file);
+    }
+
+#ifndef NO_ADDFILEINEXISTINGZIP
+    if (global_comment==NULL)
+        global_comment = zi->globalcomment;
+#endif
+
+    centraldir_pos_inzip = ZTELL64(zi->z_filefunc,zi->filestream);
+
+    if (err==ZIP_OK)
+    {
+        linkedlist_datablock_internal* ldi = zi->central_dir.first_block;
+        while (ldi!=NULL)
+        {
+            if ((err==ZIP_OK) && (ldi->filled_in_this_block>0))
+            {
+                if (ZWRITE64(zi->z_filefunc,zi->filestream, ldi->data, ldi->filled_in_this_block) != ldi->filled_in_this_block)
+                    err = ZIP_ERRNO;
+            }
+
+            size_centraldir += ldi->filled_in_this_block;
+            ldi = ldi->next_datablock;
+        }
+    }
+    free_linkedlist(&(zi->central_dir));
+
+    pos = centraldir_pos_inzip - zi->add_position_when_writing_offset;
+    if(pos >= 0xffffffff || zi->number_entry >= 0xFFFF)
+    {
+      ZPOS64_T Zip64EOCDpos = ZTELL64(zi->z_filefunc,zi->filestream);
+      Write_Zip64EndOfCentralDirectoryRecord(zi, size_centraldir, centraldir_pos_inzip);
+
+      Write_Zip64EndOfCentralDirectoryLocator(zi, Zip64EOCDpos);
+    }
+
+    if (err==ZIP_OK)
+      err = Write_EndOfCentralDirectoryRecord(zi, size_centraldir, centraldir_pos_inzip);
+
+    if(err == ZIP_OK)
+      err = Write_GlobalComment(zi, global_comment);
+
+    if (ZCLOSE64(zi->z_filefunc,zi->filestream) != 0)
+        if (err == ZIP_OK)
+            err = ZIP_ERRNO;
+
+#ifndef NO_ADDFILEINEXISTINGZIP
+    free(zi->globalcomment);
+#endif
+    free(zi);
+
+    return err;
+}
+
+extern int ZEXPORT zipRemoveExtraInfoBlock(char* pData, int* dataLen, short sHeader) {
+  char* p = pData;
+  int size = 0;
+  char* pNewHeader;
+  char* pTmp;
+  short header;
+  short dataSize;
+
+  int retVal = ZIP_OK;
+
+  if(pData == NULL || dataLen == NULL || *dataLen < 4)
+    return ZIP_PARAMERROR;
+
+  pNewHeader = (char*)ALLOC((unsigned)*dataLen);
+  pTmp = pNewHeader;
+
+  while(p < (pData + *dataLen))
+  {
+    header = *(short*)p;
+    dataSize = *(((short*)p)+1);
+
+    if( header == sHeader ) // Header found.
+    {
+      p += dataSize + 4; // skip it. do not copy to temp buffer
+    }
+    else
+    {
+      // Extra Info block should not be removed, So copy it to the temp buffer.
+      memcpy(pTmp, p, dataSize + 4);
+      p += dataSize + 4;
+      size += dataSize + 4;
+    }
+
+  }
+
+  if(size < *dataLen)
+  {
+    // clean old extra info block.
+    memset(pData,0, *dataLen);
+
+    // copy the new extra info block over the old
+    if(size > 0)
+      memcpy(pData, pNewHeader, size);
+
+    // set the new extra info size
+    *dataLen = size;
+
+    retVal = ZIP_OK;
+  }
+  else
+    retVal = ZIP_ERRNO;
+
+  free(pNewHeader);
+
+  return retVal;
+}
diff --git a/compat/zlib/contrib/minizip/zip.h b/compat/zlib/contrib/minizip/zip.h
new file mode 100644
index 0000000..3e230d3
--- /dev/null
+++ b/compat/zlib/contrib/minizip/zip.h
@@ -0,0 +1,364 @@
+/* zip.h -- IO on .zip files using zlib
+   Version 1.1, February 14h, 2010
+   part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications for Zip64 support
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+         For more info read MiniZip_info.txt
+
+         ---------------------------------------------------------------------------
+
+   Condition of use and distribution are the same than zlib :
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+        ---------------------------------------------------------------------------
+
+        Changes
+
+        See header of zip.h
+
+*/
+
+#ifndef _zip12_H
+#define _zip12_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+//#define HAVE_BZIP2
+
+#ifndef _ZLIB_H
+#include "zlib.h"
+#endif
+
+#ifndef _ZLIBIOAPI_H
+#include "ioapi.h"
+#endif
+
+#ifdef HAVE_BZIP2
+#include "bzlib.h"
+#endif
+
+#define Z_BZIP2ED 12
+
+#if defined(STRICTZIP) || defined(STRICTZIPUNZIP)
+/* like the STRICT of WIN32, we define a pointer that cannot be converted
+    from (void*) without cast */
+typedef struct TagzipFile__ { int unused; } zipFile__;
+typedef zipFile__ *zipFile;
+#else
+typedef voidp zipFile;
+#endif
+
+#define ZIP_OK                          (0)
+#define ZIP_EOF                         (0)
+#define ZIP_ERRNO                       (Z_ERRNO)
+#define ZIP_PARAMERROR                  (-102)
+#define ZIP_BADZIPFILE                  (-103)
+#define ZIP_INTERNALERROR               (-104)
+
+#ifndef DEF_MEM_LEVEL
+#  if MAX_MEM_LEVEL >= 8
+#    define DEF_MEM_LEVEL 8
+#  else
+#    define DEF_MEM_LEVEL  MAX_MEM_LEVEL
+#  endif
+#endif
+/* default memLevel */
+
+/* tm_zip contain date/time info */
+typedef struct tm_zip_s
+{
+    int tm_sec;             /* seconds after the minute - [0,59] */
+    int tm_min;             /* minutes after the hour - [0,59] */
+    int tm_hour;            /* hours since midnight - [0,23] */
+    int tm_mday;            /* day of the month - [1,31] */
+    int tm_mon;             /* months since January - [0,11] */
+    int tm_year;            /* years - [1980..2044] */
+} tm_zip;
+
+typedef struct
+{
+    tm_zip      tmz_date;       /* date in understandable format           */
+    uLong       dosDate;       /* if dos_date == 0, tmu_date is used      */
+/*    uLong       flag;        */   /* general purpose bit flag        2 bytes */
+
+    uLong       internal_fa;    /* internal file attributes        2 bytes */
+    uLong       external_fa;    /* external file attributes        4 bytes */
+} zip_fileinfo;
+
+typedef const char* zipcharpc;
+
+
+#define APPEND_STATUS_CREATE        (0)
+#define APPEND_STATUS_CREATEAFTER   (1)
+#define APPEND_STATUS_ADDINZIP      (2)
+
+extern zipFile ZEXPORT zipOpen(const char *pathname, int append);
+extern zipFile ZEXPORT zipOpen64(const void *pathname, int append);
+/*
+  Create a zipfile.
+     pathname contain on Windows XP a filename like "c:\\zlib\\zlib113.zip" or on
+       an Unix computer "zlib/zlib113.zip".
+     if the file pathname exist and append==APPEND_STATUS_CREATEAFTER, the zip
+       will be created at the end of the file.
+         (useful if the file contain a self extractor code)
+     if the file pathname exist and append==APPEND_STATUS_ADDINZIP, we will
+       add files in existing zip (be sure you don't add file that doesn't exist)
+     If the zipfile cannot be opened, the return value is NULL.
+     Else, the return value is a zipFile Handle, usable with other function
+       of this zip package.
+*/
+
+/* Note : there is no delete function into a zipfile.
+   If you want delete file into a zipfile, you must open a zipfile, and create another
+   Of course, you can use RAW reading and writing to copy the file you did not want delete
+*/
+
+extern zipFile ZEXPORT zipOpen2(const char *pathname,
+                                int append,
+                                zipcharpc* globalcomment,
+                                zlib_filefunc_def* pzlib_filefunc_def);
+
+extern zipFile ZEXPORT zipOpen2_64(const void *pathname,
+                                   int append,
+                                   zipcharpc* globalcomment,
+                                   zlib_filefunc64_def* pzlib_filefunc_def);
+
+extern zipFile ZEXPORT zipOpen3(const void *pathname,
+                                int append,
+                                zipcharpc* globalcomment,
+                                zlib_filefunc64_32_def* pzlib_filefunc64_32_def);
+
+extern int ZEXPORT zipOpenNewFileInZip(zipFile file,
+                                       const char* filename,
+                                       const zip_fileinfo* zipfi,
+                                       const void* extrafield_local,
+                                       uInt size_extrafield_local,
+                                       const void* extrafield_global,
+                                       uInt size_extrafield_global,
+                                       const char* comment,
+                                       int method,
+                                       int level);
+
+extern int ZEXPORT zipOpenNewFileInZip64(zipFile file,
+                                         const char* filename,
+                                         const zip_fileinfo* zipfi,
+                                         const void* extrafield_local,
+                                         uInt size_extrafield_local,
+                                         const void* extrafield_global,
+                                         uInt size_extrafield_global,
+                                         const char* comment,
+                                         int method,
+                                         int level,
+                                         int zip64);
+
+/*
+  Open a file in the ZIP for writing.
+  filename : the filename in zip (if NULL, '-' without quote will be used
+  *zipfi contain supplemental information
+  if extrafield_local!=NULL and size_extrafield_local>0, extrafield_local
+    contains the extrafield data for the local header
+  if extrafield_global!=NULL and size_extrafield_global>0, extrafield_global
+    contains the extrafield data for the global header
+  if comment != NULL, comment contain the comment string
+  method contain the compression method (0 for store, Z_DEFLATED for deflate)
+  level contain the level of compression (can be Z_DEFAULT_COMPRESSION)
+  zip64 is set to 1 if a zip64 extended information block should be added to the local file header.
+                    this MUST be '1' if the uncompressed size is >= 0xffffffff.
+
+*/
+
+
+extern int ZEXPORT zipOpenNewFileInZip2(zipFile file,
+                                        const char* filename,
+                                        const zip_fileinfo* zipfi,
+                                        const void* extrafield_local,
+                                        uInt size_extrafield_local,
+                                        const void* extrafield_global,
+                                        uInt size_extrafield_global,
+                                        const char* comment,
+                                        int method,
+                                        int level,
+                                        int raw);
+
+
+extern int ZEXPORT zipOpenNewFileInZip2_64(zipFile file,
+                                           const char* filename,
+                                           const zip_fileinfo* zipfi,
+                                           const void* extrafield_local,
+                                           uInt size_extrafield_local,
+                                           const void* extrafield_global,
+                                           uInt size_extrafield_global,
+                                           const char* comment,
+                                           int method,
+                                           int level,
+                                           int raw,
+                                           int zip64);
+/*
+  Same than zipOpenNewFileInZip, except if raw=1, we write raw file
+ */
+
+extern int ZEXPORT zipOpenNewFileInZip3(zipFile file,
+                                        const char* filename,
+                                        const zip_fileinfo* zipfi,
+                                        const void* extrafield_local,
+                                        uInt size_extrafield_local,
+                                        const void* extrafield_global,
+                                        uInt size_extrafield_global,
+                                        const char* comment,
+                                        int method,
+                                        int level,
+                                        int raw,
+                                        int windowBits,
+                                        int memLevel,
+                                        int strategy,
+                                        const char* password,
+                                        uLong crcForCrypting);
+
+extern int ZEXPORT zipOpenNewFileInZip3_64(zipFile file,
+                                           const char* filename,
+                                           const zip_fileinfo* zipfi,
+                                           const void* extrafield_local,
+                                           uInt size_extrafield_local,
+                                           const void* extrafield_global,
+                                           uInt size_extrafield_global,
+                                           const char* comment,
+                                           int method,
+                                           int level,
+                                           int raw,
+                                           int windowBits,
+                                           int memLevel,
+                                           int strategy,
+                                           const char* password,
+                                           uLong crcForCrypting,
+                                           int zip64);
+
+/*
+  Same than zipOpenNewFileInZip2, except
+    windowBits,memLevel,,strategy : see parameter strategy in deflateInit2
+    password : crypting password (NULL for no crypting)
+    crcForCrypting : crc of file to compress (needed for crypting)
+ */
+
+extern int ZEXPORT zipOpenNewFileInZip4(zipFile file,
+                                        const char* filename,
+                                        const zip_fileinfo* zipfi,
+                                        const void* extrafield_local,
+                                        uInt size_extrafield_local,
+                                        const void* extrafield_global,
+                                        uInt size_extrafield_global,
+                                        const char* comment,
+                                        int method,
+                                        int level,
+                                        int raw,
+                                        int windowBits,
+                                        int memLevel,
+                                        int strategy,
+                                        const char* password,
+                                        uLong crcForCrypting,
+                                        uLong versionMadeBy,
+                                        uLong flagBase);
+
+
+extern int ZEXPORT zipOpenNewFileInZip4_64(zipFile file,
+                                           const char* filename,
+                                           const zip_fileinfo* zipfi,
+                                           const void* extrafield_local,
+                                           uInt size_extrafield_local,
+                                           const void* extrafield_global,
+                                           uInt size_extrafield_global,
+                                           const char* comment,
+                                           int method,
+                                           int level,
+                                           int raw,
+                                           int windowBits,
+                                           int memLevel,
+                                           int strategy,
+                                           const char* password,
+                                           uLong crcForCrypting,
+                                           uLong versionMadeBy,
+                                           uLong flagBase,
+                                           int zip64);
+/*
+  Same than zipOpenNewFileInZip4, except
+    versionMadeBy : value for Version made by field
+    flag : value for flag field (compression level info will be added)
+ */
+
+
+extern int ZEXPORT zipWriteInFileInZip(zipFile file,
+                                       const void* buf,
+                                       unsigned len);
+/*
+  Write data in the zipfile
+*/
+
+extern int ZEXPORT zipCloseFileInZip(zipFile file);
+/*
+  Close the current file in the zipfile
+*/
+
+extern int ZEXPORT zipCloseFileInZipRaw(zipFile file,
+                                        uLong uncompressed_size,
+                                        uLong crc32);
+
+extern int ZEXPORT zipCloseFileInZipRaw64(zipFile file,
+                                          ZPOS64_T uncompressed_size,
+                                          uLong crc32);
+
+/*
+  Close the current file in the zipfile, for file opened with
+    parameter raw=1 in zipOpenNewFileInZip2
+  uncompressed_size and crc32 are value for the uncompressed size
+*/
+
+extern int ZEXPORT zipClose(zipFile file,
+                            const char* global_comment);
+/*
+  Close the zipfile
+*/
+
+
+extern int ZEXPORT zipRemoveExtraInfoBlock(char* pData, int* dataLen, short sHeader);
+/*
+  zipRemoveExtraInfoBlock -  Added by Mathias Svensson
+
+  Remove extra information block from a extra information data for the local file header or central directory header
+
+  It is needed to remove ZIP64 extra information blocks when before data is written if using RAW mode.
+
+  0x0001 is the signature header for the ZIP64 extra information blocks
+
+  usage.
+                        Remove ZIP64 Extra information from a central director extra field data
+              zipRemoveExtraInfoBlock(pCenDirExtraFieldData, &nCenDirExtraFieldDataLen, 0x0001);
+
+                        Remove ZIP64 Extra information from a Local File Header extra field data
+        zipRemoveExtraInfoBlock(pLocalHeaderExtraFieldData, &nLocalHeaderExtraFieldDataLen, 0x0001);
+*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _zip64_H */
diff --git a/compat/zlib/contrib/nuget/nuget.csproj b/compat/zlib/contrib/nuget/nuget.csproj
new file mode 100644
index 0000000..68627f0
--- /dev/null
+++ b/compat/zlib/contrib/nuget/nuget.csproj
@@ -0,0 +1,43 @@
+<Project Sdk="Microsoft.Build.NoTargets/3.5.6">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <PackageId>madler.zlib.redist</PackageId>
+    <PackageId Condition="$([MSBuild]::IsOSPlatform('Windows'))">$(PackageId).win</PackageId>
+    <PackageId Condition="$([MSBuild]::IsOSPlatform('Linux'))">$(PackageId).linux</PackageId>
+    <PackageId Condition="$([MSBuild]::IsOSPlatform('OSX'))">$(PackageId).osx</PackageId>
+    <Copyright>(C) 1995-2024 Jean-loup Gailly and Mark Adler</Copyright>
+    <version>1.3.1</version>
+    <PackageDescription>NuGet Package for consuming native builds of zlib into .NET without complexity.</PackageDescription>
+    <!--
+        Warns about not having any lib or ref assemblies (.NET Assemblies) in those directories.
+        Native only packages that is to be consumed in .NET should not require these.
+    -->
+    <NoWarn>NU5128</NoWarn>
+    <PackageOutputPath>$(MSBuildProjectDirectory)</PackageOutputPath>
+    <Authors>Jean-loup Gailly and Mark Adler</Authors>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Include="../../LICENSE" Pack="true" PackagePath="" />
+    <!-- Package up Windows builds. -->
+    <None Condition="$([MSBuild]::IsOSPlatform('Windows'))" Include="../vstudio/vc17/x86/ZlibDll$(Configuration)/zlibwapi.dll" Pack="true" PackagePath="runtimes/win-x86/native" />
+    <None Condition="$([MSBuild]::IsOSPlatform('Windows'))" Include="../vstudio/vc17/x64/ZlibDll$(Configuration)/zlibwapi.dll" Pack="true" PackagePath="runtimes/win-x64/native" />
+    <None Condition="$([MSBuild]::IsOSPlatform('Windows'))" Include="../vstudio/vc17/arm/ZlibDll$(Configuration)/zlibwapi.dll" Pack="true" PackagePath="runtimes/win-arm/native" />
+    <None Condition="$([MSBuild]::IsOSPlatform('Windows'))" Include="../vstudio/vc17/arm64/ZlibDll$(Configuration)/zlibwapi.dll" Pack="true" PackagePath="runtimes/win-arm64/native" />
+    <!-- Include debug symbols as well as we never know if they might actually be needed in the future. -->
+    <None Condition="$([MSBuild]::IsOSPlatform('Windows'))" Include="../vstudio/vc17/x86/ZlibDll$(Configuration)/zlibwapi.pdb" Pack="true" PackagePath="runtimes/win-x86/native" />
+    <None Condition="$([MSBuild]::IsOSPlatform('Windows'))" Include="../vstudio/vc17/x64/ZlibDll$(Configuration)/zlibwapi.pdb" Pack="true" PackagePath="runtimes/win-x64/native" />
+    <None Condition="$([MSBuild]::IsOSPlatform('Windows'))" Include="../vstudio/vc17/arm/ZlibDll$(Configuration)/zlibwapi.pdb" Pack="true" PackagePath="runtimes/win-arm/native" />
+    <None Condition="$([MSBuild]::IsOSPlatform('Windows'))" Include="../vstudio/vc17/arm64/ZlibDll$(Configuration)/zlibwapi.pdb" Pack="true" PackagePath="runtimes/win-arm64/native" />
+    <!-- Package up Linux builds. -->
+    <None Condition="$([MSBuild]::IsOSPlatform('Linux'))" Include="./linux-x86/libz.so" Pack="true" PackagePath="runtimes/linux-x86/native" />
+    <None Condition="$([MSBuild]::IsOSPlatform('Linux'))" Include="./linux-x64/libz.so" Pack="true" PackagePath="runtimes/linux-x64/native" />
+    <None Condition="$([MSBuild]::IsOSPlatform('Linux'))" Include="./linux-arm/libz.so" Pack="true" PackagePath="runtimes/linux-arm/native" />
+    <None Condition="$([MSBuild]::IsOSPlatform('Linux'))" Include="./linux-arm64/libz.so" Pack="true" PackagePath="runtimes/linux-arm64/native" />
+    <!-- Package up MacOS builds. -->
+    <None Condition="$([MSBuild]::IsOSPlatform('OSX'))" Include="./osx-x64/libz.dylib" Pack="true" PackagePath="runtimes/osx-x64/native" />
+    <None Condition="$([MSBuild]::IsOSPlatform('OSX'))" Include="./osx-arm64/libz.dylib" Pack="true" PackagePath="runtimes/osx-arm64/native" />
+  </ItemGroup>
+
+</Project>
diff --git a/compat/zlib/contrib/nuget/nuget.sln b/compat/zlib/contrib/nuget/nuget.sln
new file mode 100644
index 0000000..46ee8de
--- /dev/null
+++ b/compat/zlib/contrib/nuget/nuget.sln
@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "nuget", "nuget.csproj", "{B1BD3984-EF8F-4E9D-9A94-EB784E5EB1E8}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{B1BD3984-EF8F-4E9D-9A94-EB784E5EB1E8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B1BD3984-EF8F-4E9D-9A94-EB784E5EB1E8}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B1BD3984-EF8F-4E9D-9A94-EB784E5EB1E8}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B1BD3984-EF8F-4E9D-9A94-EB784E5EB1E8}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal
diff --git a/compat/zlib/contrib/pascal/example.pas b/compat/zlib/contrib/pascal/example.pas
new file mode 100644
index 0000000..5518b36
--- /dev/null
+++ b/compat/zlib/contrib/pascal/example.pas
@@ -0,0 +1,599 @@
+(* example.c -- usage example of the zlib compression library
+ * Copyright (C) 1995-2003 Jean-loup Gailly.
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ *
+ * Pascal translation
+ * Copyright (C) 1998 by Jacques Nomssi Nzali.
+ * For conditions of distribution and use, see copyright notice in readme.txt
+ *
+ * Adaptation to the zlibpas interface
+ * Copyright (C) 2003 by Cosmin Truta.
+ * For conditions of distribution and use, see copyright notice in readme.txt
+ *)
+
+program example;
+
+{$DEFINE TEST_COMPRESS}
+{DO NOT $DEFINE TEST_GZIO}
+{$DEFINE TEST_DEFLATE}
+{$DEFINE TEST_INFLATE}
+{$DEFINE TEST_FLUSH}
+{$DEFINE TEST_SYNC}
+{$DEFINE TEST_DICT}
+
+uses SysUtils, zlibpas;
+
+const TESTFILE = 'foo.gz';
+
+(* "hello world" would be more standard, but the repeated "hello"
+ * stresses the compression code better, sorry...
+ *)
+const hello: PChar = 'hello, hello!';
+
+const dictionary: PChar = 'hello';
+
+var dictId: LongInt; (* Adler32 value of the dictionary *)
+
+procedure CHECK_ERR(err: Integer; msg: String);
+begin
+  if err <> Z_OK then
+  begin
+    WriteLn(msg, ' error: ', err);
+    Halt(1);
+  end;
+end;
+
+procedure EXIT_ERR(const msg: String);
+begin
+  WriteLn('Error: ', msg);
+  Halt(1);
+end;
+
+(* ===========================================================================
+ * Test compress and uncompress
+ *)
+{$IFDEF TEST_COMPRESS}
+procedure test_compress(compr: Pointer; comprLen: LongInt;
+                        uncompr: Pointer; uncomprLen: LongInt);
+var err: Integer;
+    len: LongInt;
+begin
+  len := StrLen(hello)+1;
+
+  err := compress(compr, comprLen, hello, len);
+  CHECK_ERR(err, 'compress');
+
+  StrCopy(PChar(uncompr), 'garbage');
+
+  err := uncompress(uncompr, uncomprLen, compr, comprLen);
+  CHECK_ERR(err, 'uncompress');
+
+  if StrComp(PChar(uncompr), hello) <> 0 then
+    EXIT_ERR('bad uncompress')
+  else
+    WriteLn('uncompress(): ', PChar(uncompr));
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test read/write of .gz files
+ *)
+{$IFDEF TEST_GZIO}
+procedure test_gzio(const fname: PChar; (* compressed file name *)
+                    uncompr: Pointer;
+                    uncomprLen: LongInt);
+var err: Integer;
+    len: Integer;
+    zfile: gzFile;
+    pos: LongInt;
+begin
+  len := StrLen(hello)+1;
+
+  zfile := gzopen(fname, 'wb');
+  if zfile = NIL then
+  begin
+    WriteLn('gzopen error');
+    Halt(1);
+  end;
+  gzputc(zfile, 'h');
+  if gzputs(zfile, 'ello') <> 4 then
+  begin
+    WriteLn('gzputs err: ', gzerror(zfile, err));
+    Halt(1);
+  end;
+  {$IFDEF GZ_FORMAT_STRING}
+  if gzprintf(zfile, ', %s!', 'hello') <> 8 then
+  begin
+    WriteLn('gzprintf err: ', gzerror(zfile, err));
+    Halt(1);
+  end;
+  {$ELSE}
+  if gzputs(zfile, ', hello!') <> 8 then
+  begin
+    WriteLn('gzputs err: ', gzerror(zfile, err));
+    Halt(1);
+  end;
+  {$ENDIF}
+  gzseek(zfile, 1, SEEK_CUR); (* add one zero byte *)
+  gzclose(zfile);
+
+  zfile := gzopen(fname, 'rb');
+  if zfile = NIL then
+  begin
+    WriteLn('gzopen error');
+    Halt(1);
+  end;
+
+  StrCopy(PChar(uncompr), 'garbage');
+
+  if gzread(zfile, uncompr, uncomprLen) <> len then
+  begin
+    WriteLn('gzread err: ', gzerror(zfile, err));
+    Halt(1);
+  end;
+  if StrComp(PChar(uncompr), hello) <> 0 then
+  begin
+    WriteLn('bad gzread: ', PChar(uncompr));
+    Halt(1);
+  end
+  else
+    WriteLn('gzread(): ', PChar(uncompr));
+
+  pos := gzseek(zfile, -8, SEEK_CUR);
+  if (pos <> 6) or (gztell(zfile) <> pos) then
+  begin
+    WriteLn('gzseek error, pos=', pos, ', gztell=', gztell(zfile));
+    Halt(1);
+  end;
+
+  if gzgetc(zfile) <> ' ' then
+  begin
+    WriteLn('gzgetc error');
+    Halt(1);
+  end;
+
+  if gzungetc(' ', zfile) <> ' ' then
+  begin
+    WriteLn('gzungetc error');
+    Halt(1);
+  end;
+
+  gzgets(zfile, PChar(uncompr), uncomprLen);
+  uncomprLen := StrLen(PChar(uncompr));
+  if uncomprLen <> 7 then (* " hello!" *)
+  begin
+    WriteLn('gzgets err after gzseek: ', gzerror(zfile, err));
+    Halt(1);
+  end;
+  if StrComp(PChar(uncompr), hello + 6) <> 0 then
+  begin
+    WriteLn('bad gzgets after gzseek');
+    Halt(1);
+  end
+  else
+    WriteLn('gzgets() after gzseek: ', PChar(uncompr));
+
+  gzclose(zfile);
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test deflate with small buffers
+ *)
+{$IFDEF TEST_DEFLATE}
+procedure test_deflate(compr: Pointer; comprLen: LongInt);
+var c_stream: z_stream; (* compression stream *)
+    err: Integer;
+    len: LongInt;
+begin
+  len := StrLen(hello)+1;
+
+  c_stream.zalloc := NIL;
+  c_stream.zfree := NIL;
+  c_stream.opaque := NIL;
+
+  err := deflateInit(c_stream, Z_DEFAULT_COMPRESSION);
+  CHECK_ERR(err, 'deflateInit');
+
+  c_stream.next_in := hello;
+  c_stream.next_out := compr;
+
+  while (c_stream.total_in <> len) and
+        (c_stream.total_out < comprLen) do
+  begin
+    c_stream.avail_out := 1; { force small buffers }
+    c_stream.avail_in := 1;
+    err := deflate(c_stream, Z_NO_FLUSH);
+    CHECK_ERR(err, 'deflate');
+  end;
+
+  (* Finish the stream, still forcing small buffers: *)
+  while TRUE do
+  begin
+    c_stream.avail_out := 1;
+    err := deflate(c_stream, Z_FINISH);
+    if err = Z_STREAM_END then
+      break;
+    CHECK_ERR(err, 'deflate');
+  end;
+
+  err := deflateEnd(c_stream);
+  CHECK_ERR(err, 'deflateEnd');
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test inflate with small buffers
+ *)
+{$IFDEF TEST_INFLATE}
+procedure test_inflate(compr: Pointer; comprLen : LongInt;
+                       uncompr: Pointer; uncomprLen : LongInt);
+var err: Integer;
+    d_stream: z_stream; (* decompression stream *)
+begin
+  StrCopy(PChar(uncompr), 'garbage');
+
+  d_stream.zalloc := NIL;
+  d_stream.zfree := NIL;
+  d_stream.opaque := NIL;
+
+  d_stream.next_in := compr;
+  d_stream.avail_in := 0;
+  d_stream.next_out := uncompr;
+
+  err := inflateInit(d_stream);
+  CHECK_ERR(err, 'inflateInit');
+
+  while (d_stream.total_out < uncomprLen) and
+        (d_stream.total_in < comprLen) do
+  begin
+    d_stream.avail_out := 1; (* force small buffers *)
+    d_stream.avail_in := 1;
+    err := inflate(d_stream, Z_NO_FLUSH);
+    if err = Z_STREAM_END then
+      break;
+    CHECK_ERR(err, 'inflate');
+  end;
+
+  err := inflateEnd(d_stream);
+  CHECK_ERR(err, 'inflateEnd');
+
+  if StrComp(PChar(uncompr), hello) <> 0 then
+    EXIT_ERR('bad inflate')
+  else
+    WriteLn('inflate(): ', PChar(uncompr));
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test deflate with large buffers and dynamic change of compression level
+ *)
+{$IFDEF TEST_DEFLATE}
+procedure test_large_deflate(compr: Pointer; comprLen: LongInt;
+                             uncompr: Pointer; uncomprLen: LongInt);
+var c_stream: z_stream; (* compression stream *)
+    err: Integer;
+begin
+  c_stream.zalloc := NIL;
+  c_stream.zfree := NIL;
+  c_stream.opaque := NIL;
+
+  err := deflateInit(c_stream, Z_BEST_SPEED);
+  CHECK_ERR(err, 'deflateInit');
+
+  c_stream.next_out := compr;
+  c_stream.avail_out := Integer(comprLen);
+
+  (* At this point, uncompr is still mostly zeroes, so it should compress
+   * very well:
+   *)
+  c_stream.next_in := uncompr;
+  c_stream.avail_in := Integer(uncomprLen);
+  err := deflate(c_stream, Z_NO_FLUSH);
+  CHECK_ERR(err, 'deflate');
+  if c_stream.avail_in <> 0 then
+    EXIT_ERR('deflate not greedy');
+
+  (* Feed in already compressed data and switch to no compression: *)
+  deflateParams(c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY);
+  c_stream.next_in := compr;
+  c_stream.avail_in := Integer(comprLen div 2);
+  err := deflate(c_stream, Z_NO_FLUSH);
+  CHECK_ERR(err, 'deflate');
+
+  (* Switch back to compressing mode: *)
+  deflateParams(c_stream, Z_BEST_COMPRESSION, Z_FILTERED);
+  c_stream.next_in := uncompr;
+  c_stream.avail_in := Integer(uncomprLen);
+  err := deflate(c_stream, Z_NO_FLUSH);
+  CHECK_ERR(err, 'deflate');
+
+  err := deflate(c_stream, Z_FINISH);
+  if err <> Z_STREAM_END then
+    EXIT_ERR('deflate should report Z_STREAM_END');
+
+  err := deflateEnd(c_stream);
+  CHECK_ERR(err, 'deflateEnd');
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test inflate with large buffers
+ *)
+{$IFDEF TEST_INFLATE}
+procedure test_large_inflate(compr: Pointer; comprLen: LongInt;
+                             uncompr: Pointer; uncomprLen: LongInt);
+var err: Integer;
+    d_stream: z_stream; (* decompression stream *)
+begin
+  StrCopy(PChar(uncompr), 'garbage');
+
+  d_stream.zalloc := NIL;
+  d_stream.zfree := NIL;
+  d_stream.opaque := NIL;
+
+  d_stream.next_in := compr;
+  d_stream.avail_in := Integer(comprLen);
+
+  err := inflateInit(d_stream);
+  CHECK_ERR(err, 'inflateInit');
+
+  while TRUE do
+  begin
+    d_stream.next_out := uncompr;            (* discard the output *)
+    d_stream.avail_out := Integer(uncomprLen);
+    err := inflate(d_stream, Z_NO_FLUSH);
+    if err = Z_STREAM_END then
+      break;
+    CHECK_ERR(err, 'large inflate');
+  end;
+
+  err := inflateEnd(d_stream);
+  CHECK_ERR(err, 'inflateEnd');
+
+  if d_stream.total_out <> 2 * uncomprLen + comprLen div 2 then
+  begin
+    WriteLn('bad large inflate: ', d_stream.total_out);
+    Halt(1);
+  end
+  else
+    WriteLn('large_inflate(): OK');
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test deflate with full flush
+ *)
+{$IFDEF TEST_FLUSH}
+procedure test_flush(compr: Pointer; var comprLen : LongInt);
+var c_stream: z_stream; (* compression stream *)
+    err: Integer;
+    len: Integer;
+begin
+  len := StrLen(hello)+1;
+
+  c_stream.zalloc := NIL;
+  c_stream.zfree := NIL;
+  c_stream.opaque := NIL;
+
+  err := deflateInit(c_stream, Z_DEFAULT_COMPRESSION);
+  CHECK_ERR(err, 'deflateInit');
+
+  c_stream.next_in := hello;
+  c_stream.next_out := compr;
+  c_stream.avail_in := 3;
+  c_stream.avail_out := Integer(comprLen);
+  err := deflate(c_stream, Z_FULL_FLUSH);
+  CHECK_ERR(err, 'deflate');
+
+  Inc(PByteArray(compr)^[3]); (* force an error in first compressed block *)
+  c_stream.avail_in := len - 3;
+
+  err := deflate(c_stream, Z_FINISH);
+  if err <> Z_STREAM_END then
+    CHECK_ERR(err, 'deflate');
+
+  err := deflateEnd(c_stream);
+  CHECK_ERR(err, 'deflateEnd');
+
+  comprLen := c_stream.total_out;
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test inflateSync()
+ *)
+{$IFDEF TEST_SYNC}
+procedure test_sync(compr: Pointer; comprLen: LongInt;
+                    uncompr: Pointer; uncomprLen : LongInt);
+var err: Integer;
+    d_stream: z_stream; (* decompression stream *)
+begin
+  StrCopy(PChar(uncompr), 'garbage');
+
+  d_stream.zalloc := NIL;
+  d_stream.zfree := NIL;
+  d_stream.opaque := NIL;
+
+  d_stream.next_in := compr;
+  d_stream.avail_in := 2; (* just read the zlib header *)
+
+  err := inflateInit(d_stream);
+  CHECK_ERR(err, 'inflateInit');
+
+  d_stream.next_out := uncompr;
+  d_stream.avail_out := Integer(uncomprLen);
+
+  inflate(d_stream, Z_NO_FLUSH);
+  CHECK_ERR(err, 'inflate');
+
+  d_stream.avail_in := Integer(comprLen-2);   (* read all compressed data *)
+  err := inflateSync(d_stream);               (* but skip the damaged part *)
+  CHECK_ERR(err, 'inflateSync');
+
+  err := inflate(d_stream, Z_FINISH);
+  if err <> Z_DATA_ERROR then
+    EXIT_ERR('inflate should report DATA_ERROR');
+    (* Because of incorrect adler32 *)
+
+  err := inflateEnd(d_stream);
+  CHECK_ERR(err, 'inflateEnd');
+
+  WriteLn('after inflateSync(): hel', PChar(uncompr));
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test deflate with preset dictionary
+ *)
+{$IFDEF TEST_DICT}
+procedure test_dict_deflate(compr: Pointer; comprLen: LongInt);
+var c_stream: z_stream; (* compression stream *)
+    err: Integer;
+begin
+  c_stream.zalloc := NIL;
+  c_stream.zfree := NIL;
+  c_stream.opaque := NIL;
+
+  err := deflateInit(c_stream, Z_BEST_COMPRESSION);
+  CHECK_ERR(err, 'deflateInit');
+
+  err := deflateSetDictionary(c_stream, dictionary, StrLen(dictionary));
+  CHECK_ERR(err, 'deflateSetDictionary');
+
+  dictId := c_stream.adler;
+  c_stream.next_out := compr;
+  c_stream.avail_out := Integer(comprLen);
+
+  c_stream.next_in := hello;
+  c_stream.avail_in := StrLen(hello)+1;
+
+  err := deflate(c_stream, Z_FINISH);
+  if err <> Z_STREAM_END then
+    EXIT_ERR('deflate should report Z_STREAM_END');
+
+  err := deflateEnd(c_stream);
+  CHECK_ERR(err, 'deflateEnd');
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test inflate with a preset dictionary
+ *)
+{$IFDEF TEST_DICT}
+procedure test_dict_inflate(compr: Pointer; comprLen: LongInt;
+                            uncompr: Pointer; uncomprLen: LongInt);
+var err: Integer;
+    d_stream: z_stream; (* decompression stream *)
+begin
+  StrCopy(PChar(uncompr), 'garbage');
+
+  d_stream.zalloc := NIL;
+  d_stream.zfree := NIL;
+  d_stream.opaque := NIL;
+
+  d_stream.next_in := compr;
+  d_stream.avail_in := Integer(comprLen);
+
+  err := inflateInit(d_stream);
+  CHECK_ERR(err, 'inflateInit');
+
+  d_stream.next_out := uncompr;
+  d_stream.avail_out := Integer(uncomprLen);
+
+  while TRUE do
+  begin
+    err := inflate(d_stream, Z_NO_FLUSH);
+    if err = Z_STREAM_END then
+      break;
+    if err = Z_NEED_DICT then
+    begin
+      if d_stream.adler <> dictId then
+        EXIT_ERR('unexpected dictionary');
+      err := inflateSetDictionary(d_stream, dictionary, StrLen(dictionary));
+    end;
+    CHECK_ERR(err, 'inflate with dict');
+  end;
+
+  err := inflateEnd(d_stream);
+  CHECK_ERR(err, 'inflateEnd');
+
+  if StrComp(PChar(uncompr), hello) <> 0 then
+    EXIT_ERR('bad inflate with dict')
+  else
+    WriteLn('inflate with dictionary: ', PChar(uncompr));
+end;
+{$ENDIF}
+
+var compr, uncompr: Pointer;
+    comprLen, uncomprLen: LongInt;
+
+begin
+  if zlibVersion^ <> ZLIB_VERSION[1] then
+    EXIT_ERR('Incompatible zlib version');
+
+  WriteLn('zlib version: ', zlibVersion);
+  WriteLn('zlib compile flags: ', Format('0x%x', [zlibCompileFlags]));
+
+  comprLen := 10000 * SizeOf(Integer); (* don't overflow on MSDOS *)
+  uncomprLen := comprLen;
+  GetMem(compr, comprLen);
+  GetMem(uncompr, uncomprLen);
+  if (compr = NIL) or (uncompr = NIL) then
+    EXIT_ERR('Out of memory');
+  (* compr and uncompr are cleared to avoid reading uninitialized
+   * data and to ensure that uncompr compresses well.
+   *)
+  FillChar(compr^, comprLen, 0);
+  FillChar(uncompr^, uncomprLen, 0);
+
+  {$IFDEF TEST_COMPRESS}
+  WriteLn('** Testing compress');
+  test_compress(compr, comprLen, uncompr, uncomprLen);
+  {$ENDIF}
+
+  {$IFDEF TEST_GZIO}
+  WriteLn('** Testing gzio');
+  if ParamCount >= 1 then
+    test_gzio(ParamStr(1), uncompr, uncomprLen)
+  else
+    test_gzio(TESTFILE, uncompr, uncomprLen);
+  {$ENDIF}
+
+  {$IFDEF TEST_DEFLATE}
+  WriteLn('** Testing deflate with small buffers');
+  test_deflate(compr, comprLen);
+  {$ENDIF}
+  {$IFDEF TEST_INFLATE}
+  WriteLn('** Testing inflate with small buffers');
+  test_inflate(compr, comprLen, uncompr, uncomprLen);
+  {$ENDIF}
+
+  {$IFDEF TEST_DEFLATE}
+  WriteLn('** Testing deflate with large buffers');
+  test_large_deflate(compr, comprLen, uncompr, uncomprLen);
+  {$ENDIF}
+  {$IFDEF TEST_INFLATE}
+  WriteLn('** Testing inflate with large buffers');
+  test_large_inflate(compr, comprLen, uncompr, uncomprLen);
+  {$ENDIF}
+
+  {$IFDEF TEST_FLUSH}
+  WriteLn('** Testing deflate with full flush');
+  test_flush(compr, comprLen);
+  {$ENDIF}
+  {$IFDEF TEST_SYNC}
+  WriteLn('** Testing inflateSync');
+  test_sync(compr, comprLen, uncompr, uncomprLen);
+  {$ENDIF}
+  comprLen := uncomprLen;
+
+  {$IFDEF TEST_DICT}
+  WriteLn('** Testing deflate and inflate with preset dictionary');
+  test_dict_deflate(compr, comprLen);
+  test_dict_inflate(compr, comprLen, uncompr, uncomprLen);
+  {$ENDIF}
+
+  FreeMem(compr, comprLen);
+  FreeMem(uncompr, uncomprLen);
+end.
diff --git a/compat/zlib/contrib/pascal/readme.txt b/compat/zlib/contrib/pascal/readme.txt
new file mode 100644
index 0000000..60e87c8
--- /dev/null
+++ b/compat/zlib/contrib/pascal/readme.txt
@@ -0,0 +1,76 @@
+
+This directory contains a Pascal (Delphi, Kylix) interface to the
+zlib data compression library.
+
+
+Directory listing
+=================
+
+zlibd32.mak     makefile for Borland C++
+example.pas     usage example of zlib
+zlibpas.pas     the Pascal interface to zlib
+readme.txt      this file
+
+
+Compatibility notes
+===================
+
+- Although the name "zlib" would have been more normal for the
+  zlibpas unit, this name is already taken by Borland's ZLib unit.
+  This is somehow unfortunate, because that unit is not a genuine
+  interface to the full-fledged zlib functionality, but a suite of
+  class wrappers around zlib streams.  Other essential features,
+  such as checksums, are missing.
+  It would have been more appropriate for that unit to have a name
+  like "ZStreams", or something similar.
+
+- The C and zlib-supplied types int, uInt, long, uLong, etc. are
+  translated directly into Pascal types of similar sizes (Integer,
+  LongInt, etc.), to avoid namespace pollution.  In particular,
+  there is no conversion of unsigned int into a Pascal unsigned
+  integer.  The Word type is non-portable and has the same size
+  (16 bits) both in a 16-bit and in a 32-bit environment, unlike
+  Integer.  Even if there is a 32-bit Cardinal type, there is no
+  real need for unsigned int in zlib under a 32-bit environment.
+
+- Except for the callbacks, the zlib function interfaces are
+  assuming the calling convention normally used in Pascal
+  (__pascal for DOS and Windows16, __fastcall for Windows32).
+  Since the cdecl keyword is used, the old Turbo Pascal does
+  not work with this interface.
+
+- The gz* function interfaces are not translated, to avoid
+  interfacing problems with the C runtime library.  Besides,
+    gzprintf(gzFile file, const char *format, ...)
+  cannot be translated into Pascal.
+
+
+Legal issues
+============
+
+The zlibpas interface is:
+  Copyright (C) 1995-2003 Jean-loup Gailly and Mark Adler.
+  Copyright (C) 1998 by Bob Dellaca.
+  Copyright (C) 2003 by Cosmin Truta.
+
+The example program is:
+  Copyright (C) 1995-2003 by Jean-loup Gailly.
+  Copyright (C) 1998,1999,2000 by Jacques Nomssi Nzali.
+  Copyright (C) 2003 by Cosmin Truta.
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the author be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
diff --git a/compat/zlib/contrib/pascal/zlibd32.mak b/compat/zlib/contrib/pascal/zlibd32.mak
new file mode 100644
index 0000000..9bb00b7
--- /dev/null
+++ b/compat/zlib/contrib/pascal/zlibd32.mak
@@ -0,0 +1,99 @@
+# Makefile for zlib
+# For use with Delphi and C++ Builder under Win32
+# Updated for zlib 1.2.x by Cosmin Truta
+
+# ------------ Borland C++ ------------
+
+# This project uses the Delphi (fastcall/register) calling convention:
+LOC = -DZEXPORT=__fastcall -DZEXPORTVA=__cdecl
+
+CC = bcc32
+LD = bcc32
+AR = tlib
+# do not use "-pr" in CFLAGS
+CFLAGS = -a -d -k- -O2 $(LOC)
+LDFLAGS =
+
+
+# variables
+ZLIB_LIB = zlib.lib
+
+OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj
+OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
+OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzclose.obj+gzlib.obj+gzread.obj
+OBJP2 = +gzwrite.obj+infback.obj+inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj
+
+
+# targets
+all: $(ZLIB_LIB) example.exe minigzip.exe
+
+.c.obj:
+	$(CC) -c $(CFLAGS) $*.c
+
+adler32.obj: adler32.c zlib.h zconf.h
+
+compress.obj: compress.c zlib.h zconf.h
+
+crc32.obj: crc32.c zlib.h zconf.h crc32.h
+
+deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
+
+gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h
+
+gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h
+
+gzread.obj: gzread.c zlib.h zconf.h gzguts.h
+
+gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h
+
+infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h
+
+inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
+
+trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
+
+uncompr.obj: uncompr.c zlib.h zconf.h
+
+zutil.obj: zutil.c zutil.h zlib.h zconf.h
+
+example.obj: test/example.c zlib.h zconf.h
+
+minigzip.obj: test/minigzip.c zlib.h zconf.h
+
+
+# For the sake of the old Borland make,
+# the command line is cut to fit in the MS-DOS 128 byte limit:
+$(ZLIB_LIB): $(OBJ1) $(OBJ2)
+	-del $(ZLIB_LIB)
+	$(AR) $(ZLIB_LIB) $(OBJP1)
+	$(AR) $(ZLIB_LIB) $(OBJP2)
+
+
+# testing
+test: example.exe minigzip.exe
+	example
+	echo hello world | minigzip | minigzip -d
+
+example.exe: example.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) example.obj $(ZLIB_LIB)
+
+minigzip.exe: minigzip.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB)
+
+
+# cleanup
+clean:
+	-del *.obj
+	-del *.exe
+	-del *.lib
+	-del *.tds
+	-del zlib.bak
+	-del foo.gz
+
diff --git a/compat/zlib/contrib/pascal/zlibpas.pas b/compat/zlib/contrib/pascal/zlibpas.pas
new file mode 100644
index 0000000..0cf0e7b
--- /dev/null
+++ b/compat/zlib/contrib/pascal/zlibpas.pas
@@ -0,0 +1,276 @@
+(* zlibpas -- Pascal interface to the zlib data compression library
+ *
+ * Copyright (C) 2003 Cosmin Truta.
+ * Derived from original sources by Bob Dellaca.
+ * For conditions of distribution and use, see copyright notice in readme.txt
+ *)
+
+unit zlibpas;
+
+interface
+
+const
+  ZLIB_VERSION = '1.3.1';
+  ZLIB_VERNUM  = $12a0;
+
+type
+  alloc_func = function(opaque: Pointer; items, size: Integer): Pointer;
+                 cdecl;
+  free_func  = procedure(opaque, address: Pointer);
+                 cdecl;
+
+  in_func    = function(opaque: Pointer; var buf: PByte): Integer;
+                 cdecl;
+  out_func   = function(opaque: Pointer; buf: PByte; size: Integer): Integer;
+                 cdecl;
+
+  z_streamp = ^z_stream;
+  z_stream = packed record
+    next_in: PChar;       (* next input byte *)
+    avail_in: Integer;    (* number of bytes available at next_in *)
+    total_in: LongInt;    (* total nb of input bytes read so far *)
+
+    next_out: PChar;      (* next output byte should be put there *)
+    avail_out: Integer;   (* remaining free space at next_out *)
+    total_out: LongInt;   (* total nb of bytes output so far *)
+
+    msg: PChar;           (* last error message, NULL if no error *)
+    state: Pointer;       (* not visible by applications *)
+
+    zalloc: alloc_func;   (* used to allocate the internal state *)
+    zfree: free_func;     (* used to free the internal state *)
+    opaque: Pointer;      (* private data object passed to zalloc and zfree *)
+
+    data_type: Integer;   (* best guess about the data type: ascii or binary *)
+    adler: LongInt;       (* adler32 value of the uncompressed data *)
+    reserved: LongInt;    (* reserved for future use *)
+  end;
+
+  gz_headerp = ^gz_header;
+  gz_header = packed record
+    text: Integer;        (* true if compressed data believed to be text *)
+    time: LongInt;        (* modification time *)
+    xflags: Integer;      (* extra flags (not used when writing a gzip file) *)
+    os: Integer;          (* operating system *)
+    extra: PChar;         (* pointer to extra field or Z_NULL if none *)
+    extra_len: Integer;   (* extra field length (valid if extra != Z_NULL) *)
+    extra_max: Integer;   (* space at extra (only when reading header) *)
+    name: PChar;          (* pointer to zero-terminated file name or Z_NULL *)
+    name_max: Integer;    (* space at name (only when reading header) *)
+    comment: PChar;       (* pointer to zero-terminated comment or Z_NULL *)
+    comm_max: Integer;    (* space at comment (only when reading header) *)
+    hcrc: Integer;        (* true if there was or will be a header crc *)
+    done: Integer;        (* true when done reading gzip header *)
+  end;
+
+(* constants *)
+const
+  Z_NO_FLUSH      = 0;
+  Z_PARTIAL_FLUSH = 1;
+  Z_SYNC_FLUSH    = 2;
+  Z_FULL_FLUSH    = 3;
+  Z_FINISH        = 4;
+  Z_BLOCK         = 5;
+  Z_TREES         = 6;
+
+  Z_OK            =  0;
+  Z_STREAM_END    =  1;
+  Z_NEED_DICT     =  2;
+  Z_ERRNO         = -1;
+  Z_STREAM_ERROR  = -2;
+  Z_DATA_ERROR    = -3;
+  Z_MEM_ERROR     = -4;
+  Z_BUF_ERROR     = -5;
+  Z_VERSION_ERROR = -6;
+
+  Z_NO_COMPRESSION       =  0;
+  Z_BEST_SPEED           =  1;
+  Z_BEST_COMPRESSION     =  9;
+  Z_DEFAULT_COMPRESSION  = -1;
+
+  Z_FILTERED            = 1;
+  Z_HUFFMAN_ONLY        = 2;
+  Z_RLE                 = 3;
+  Z_FIXED               = 4;
+  Z_DEFAULT_STRATEGY    = 0;
+
+  Z_BINARY   = 0;
+  Z_TEXT     = 1;
+  Z_ASCII    = 1;
+  Z_UNKNOWN  = 2;
+
+  Z_DEFLATED = 8;
+
+(* basic functions *)
+function zlibVersion: PChar;
+function deflateInit(var strm: z_stream; level: Integer): Integer;
+function deflate(var strm: z_stream; flush: Integer): Integer;
+function deflateEnd(var strm: z_stream): Integer;
+function inflateInit(var strm: z_stream): Integer;
+function inflate(var strm: z_stream; flush: Integer): Integer;
+function inflateEnd(var strm: z_stream): Integer;
+
+(* advanced functions *)
+function deflateInit2(var strm: z_stream; level, method, windowBits,
+                      memLevel, strategy: Integer): Integer;
+function deflateSetDictionary(var strm: z_stream; const dictionary: PChar;
+                              dictLength: Integer): Integer;
+function deflateCopy(var dest, source: z_stream): Integer;
+function deflateReset(var strm: z_stream): Integer;
+function deflateParams(var strm: z_stream; level, strategy: Integer): Integer;
+function deflateTune(var strm: z_stream; good_length, max_lazy, nice_length, max_chain: Integer): Integer;
+function deflateBound(var strm: z_stream; sourceLen: LongInt): LongInt;
+function deflatePending(var strm: z_stream; var pending: Integer; var bits: Integer): Integer;
+function deflatePrime(var strm: z_stream; bits, value: Integer): Integer;
+function deflateSetHeader(var strm: z_stream; head: gz_header): Integer;
+function inflateInit2(var strm: z_stream; windowBits: Integer): Integer;
+function inflateSetDictionary(var strm: z_stream; const dictionary: PChar;
+                              dictLength: Integer): Integer;
+function inflateSync(var strm: z_stream): Integer;
+function inflateCopy(var dest, source: z_stream): Integer;
+function inflateReset(var strm: z_stream): Integer;
+function inflateReset2(var strm: z_stream; windowBits: Integer): Integer;
+function inflatePrime(var strm: z_stream; bits, value: Integer): Integer;
+function inflateMark(var strm: z_stream): LongInt;
+function inflateGetHeader(var strm: z_stream; var head: gz_header): Integer;
+function inflateBackInit(var strm: z_stream;
+                         windowBits: Integer; window: PChar): Integer;
+function inflateBack(var strm: z_stream; in_fn: in_func; in_desc: Pointer;
+                     out_fn: out_func; out_desc: Pointer): Integer;
+function inflateBackEnd(var strm: z_stream): Integer;
+function zlibCompileFlags: LongInt;
+
+(* utility functions *)
+function compress(dest: PChar; var destLen: LongInt;
+                  const source: PChar; sourceLen: LongInt): Integer;
+function compress2(dest: PChar; var destLen: LongInt;
+                  const source: PChar; sourceLen: LongInt;
+                  level: Integer): Integer;
+function compressBound(sourceLen: LongInt): LongInt;
+function uncompress(dest: PChar; var destLen: LongInt;
+                    const source: PChar; sourceLen: LongInt): Integer;
+
+(* checksum functions *)
+function adler32(adler: LongInt; const buf: PChar; len: Integer): LongInt;
+function adler32_combine(adler1, adler2, len2: LongInt): LongInt;
+function crc32(crc: LongInt; const buf: PChar; len: Integer): LongInt;
+function crc32_combine(crc1, crc2, len2: LongInt): LongInt;
+
+(* various hacks, don't look :) *)
+function deflateInit_(var strm: z_stream; level: Integer;
+                      const version: PChar; stream_size: Integer): Integer;
+function inflateInit_(var strm: z_stream; const version: PChar;
+                      stream_size: Integer): Integer;
+function deflateInit2_(var strm: z_stream;
+                       level, method, windowBits, memLevel, strategy: Integer;
+                       const version: PChar; stream_size: Integer): Integer;
+function inflateInit2_(var strm: z_stream; windowBits: Integer;
+                       const version: PChar; stream_size: Integer): Integer;
+function inflateBackInit_(var strm: z_stream;
+                          windowBits: Integer; window: PChar;
+                          const version: PChar; stream_size: Integer): Integer;
+
+
+implementation
+
+{$L adler32.obj}
+{$L compress.obj}
+{$L crc32.obj}
+{$L deflate.obj}
+{$L infback.obj}
+{$L inffast.obj}
+{$L inflate.obj}
+{$L inftrees.obj}
+{$L trees.obj}
+{$L uncompr.obj}
+{$L zutil.obj}
+
+function adler32; external;
+function adler32_combine; external;
+function compress; external;
+function compress2; external;
+function compressBound; external;
+function crc32; external;
+function crc32_combine; external;
+function deflate; external;
+function deflateBound; external;
+function deflateCopy; external;
+function deflateEnd; external;
+function deflateInit_; external;
+function deflateInit2_; external;
+function deflateParams; external;
+function deflatePending; external;
+function deflatePrime; external;
+function deflateReset; external;
+function deflateSetDictionary; external;
+function deflateSetHeader; external;
+function deflateTune; external;
+function inflate; external;
+function inflateBack; external;
+function inflateBackEnd; external;
+function inflateBackInit_; external;
+function inflateCopy; external;
+function inflateEnd; external;
+function inflateGetHeader; external;
+function inflateInit_; external;
+function inflateInit2_; external;
+function inflateMark; external;
+function inflatePrime; external;
+function inflateReset; external;
+function inflateReset2; external;
+function inflateSetDictionary; external;
+function inflateSync; external;
+function uncompress; external;
+function zlibCompileFlags; external;
+function zlibVersion; external;
+
+function deflateInit(var strm: z_stream; level: Integer): Integer;
+begin
+  Result := deflateInit_(strm, level, ZLIB_VERSION, sizeof(z_stream));
+end;
+
+function deflateInit2(var strm: z_stream; level, method, windowBits, memLevel,
+                      strategy: Integer): Integer;
+begin
+  Result := deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
+                          ZLIB_VERSION, sizeof(z_stream));
+end;
+
+function inflateInit(var strm: z_stream): Integer;
+begin
+  Result := inflateInit_(strm, ZLIB_VERSION, sizeof(z_stream));
+end;
+
+function inflateInit2(var strm: z_stream; windowBits: Integer): Integer;
+begin
+  Result := inflateInit2_(strm, windowBits, ZLIB_VERSION, sizeof(z_stream));
+end;
+
+function inflateBackInit(var strm: z_stream;
+                         windowBits: Integer; window: PChar): Integer;
+begin
+  Result := inflateBackInit_(strm, windowBits, window,
+                             ZLIB_VERSION, sizeof(z_stream));
+end;
+
+function _malloc(Size: Integer): Pointer; cdecl;
+begin
+  GetMem(Result, Size);
+end;
+
+procedure _free(Block: Pointer); cdecl;
+begin
+  FreeMem(Block);
+end;
+
+procedure _memset(P: Pointer; B: Byte; count: Integer); cdecl;
+begin
+  FillChar(P^, count, B);
+end;
+
+procedure _memcpy(dest, source: Pointer; count: Integer); cdecl;
+begin
+  Move(source^, dest^, count);
+end;
+
+end.
diff --git a/compat/zlib/contrib/puff/Makefile b/compat/zlib/contrib/puff/Makefile
new file mode 100644
index 0000000..0e2594c
--- /dev/null
+++ b/compat/zlib/contrib/puff/Makefile
@@ -0,0 +1,42 @@
+CFLAGS=-O
+
+puff: puff.o pufftest.o
+
+puff.o: puff.h
+
+pufftest.o: puff.h
+
+test: puff
+	puff zeros.raw
+
+puft: puff.c puff.h pufftest.o
+	cc -fprofile-arcs -ftest-coverage -o puft puff.c pufftest.o
+
+# puff full coverage test (should say 100%)
+cov: puft
+	@rm -f *.gcov *.gcda
+	@puft -w zeros.raw 2>&1 | cat > /dev/null
+	@echo '04' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
+	@echo '00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
+	@echo '00 00 00 00 00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 254
+	@echo '00 01 00 fe ff' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
+	@echo '01 01 00 fe ff 0a' | xxd -r -p | puft -f 2>&1 | cat > /dev/null
+	@echo '02 7e ff ff' | xxd -r -p | puft 2> /dev/null || test $$? -eq 246
+	@echo '02' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
+	@echo '04 80 49 92 24 49 92 24 0f b4 ff ff c3 04' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
+	@echo '04 80 49 92 24 49 92 24 71 ff ff 93 11 00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 249
+	@echo '04 c0 81 08 00 00 00 00 20 7f eb 0b 00 00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 246
+	@echo '0b 00 00' | xxd -r -p | puft -f 2>&1 | cat > /dev/null
+	@echo '1a 07' | xxd -r -p | puft 2> /dev/null || test $$? -eq 246
+	@echo '0c c0 81 00 00 00 00 00 90 ff 6b 04' | xxd -r -p | puft 2> /dev/null || test $$? -eq 245
+	@puft -f zeros.raw 2>&1 | cat > /dev/null
+	@echo 'fc 00 00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 253
+	@echo '04 00 fe ff' | xxd -r -p | puft 2> /dev/null || test $$? -eq 252
+	@echo '04 00 24 49' | xxd -r -p | puft 2> /dev/null || test $$? -eq 251
+	@echo '04 80 49 92 24 49 92 24 0f b4 ff ff c3 84' | xxd -r -p | puft 2> /dev/null || test $$? -eq 248
+	@echo '04 00 24 e9 ff ff' | xxd -r -p | puft 2> /dev/null || test $$? -eq 250
+	@echo '04 00 24 e9 ff 6d' | xxd -r -p | puft 2> /dev/null || test $$? -eq 247
+	@gcov -n puff.c
+
+clean:
+	rm -f puff puft *.o *.gc*
diff --git a/compat/zlib/contrib/puff/README b/compat/zlib/contrib/puff/README
new file mode 100644
index 0000000..d8192c7
--- /dev/null
+++ b/compat/zlib/contrib/puff/README
@@ -0,0 +1,63 @@
+Puff -- A Simple Inflate
+3 Mar 2003
+Mark Adler
+madler@alumni.caltech.edu
+
+What this is --
+
+puff.c provides the routine puff() to decompress the deflate data format.  It
+does so more slowly than zlib, but the code is about one-fifth the size of the
+inflate code in zlib, and written to be very easy to read.
+
+Why I wrote this --
+
+puff.c was written to document the deflate format unambiguously, by virtue of
+being working C code.  It is meant to supplement RFC 1951, which formally
+describes the deflate format.  I have received many questions on details of the
+deflate format, and I hope that reading this code will answer those questions.
+puff.c is heavily commented with details of the deflate format, especially
+those little nooks and cranies of the format that might not be obvious from a
+specification.
+
+puff.c may also be useful in applications where code size or memory usage is a
+very limited resource, and speed is not as important.
+
+How to use it --
+
+Well, most likely you should just be reading puff.c and using zlib for actual
+applications, but if you must ...
+
+Include puff.h in your code, which provides this prototype:
+
+int puff(unsigned char *dest,           /* pointer to destination pointer */
+         unsigned long *destlen,        /* amount of output space */
+         unsigned char *source,         /* pointer to source data pointer */
+         unsigned long *sourcelen);     /* amount of input available */
+
+Then you can call puff() to decompress a deflate stream that is in memory in
+its entirety at source, to a sufficiently sized block of memory for the
+decompressed data at dest.  puff() is the only external symbol in puff.c  The
+only C library functions that puff.c needs are setjmp() and longjmp(), which
+are used to simplify error checking in the code to improve readability.  puff.c
+does no memory allocation, and uses less than 2K bytes off of the stack.
+
+If destlen is not enough space for the uncompressed data, then inflate will
+return an error without writing more than destlen bytes.  Note that this means
+that in order to decompress the deflate data successfully, you need to know
+the size of the uncompressed data ahead of time.
+
+If needed, puff() can determine the size of the uncompressed data with no
+output space.  This is done by passing dest equal to (unsigned char *)0.  Then
+the initial value of *destlen is ignored and *destlen is set to the length of
+the uncompressed data.  So if the size of the uncompressed data is not known,
+then two passes of puff() can be used--first to determine the size, and second
+to do the actual inflation after allocating the appropriate memory.  Not
+pretty, but it works.  (This is one of the reasons you should be using zlib.)
+
+The deflate format is self-terminating.  If the deflate stream does not end
+in *sourcelen bytes, puff() will return an error without reading at or past
+endsource.
+
+On return, *sourcelen is updated to the amount of input data consumed, and
+*destlen is updated to the size of the uncompressed data.  See the comments
+in puff.c for the possible return codes for puff().
diff --git a/compat/zlib/contrib/puff/puff.c b/compat/zlib/contrib/puff/puff.c
new file mode 100644
index 0000000..d759825
--- /dev/null
+++ b/compat/zlib/contrib/puff/puff.c
@@ -0,0 +1,840 @@
+/*
+ * puff.c
+ * Copyright (C) 2002-2013 Mark Adler
+ * For conditions of distribution and use, see copyright notice in puff.h
+ * version 2.3, 21 Jan 2013
+ *
+ * puff.c is a simple inflate written to be an unambiguous way to specify the
+ * deflate format.  It is not written for speed but rather simplicity.  As a
+ * side benefit, this code might actually be useful when small code is more
+ * important than speed, such as bootstrap applications.  For typical deflate
+ * data, zlib's inflate() is about four times as fast as puff().  zlib's
+ * inflate compiles to around 20K on my machine, whereas puff.c compiles to
+ * around 4K on my machine (a PowerPC using GNU cc).  If the faster decode()
+ * function here is used, then puff() is only twice as slow as zlib's
+ * inflate().
+ *
+ * All dynamically allocated memory comes from the stack.  The stack required
+ * is less than 2K bytes.  This code is compatible with 16-bit int's and
+ * assumes that long's are at least 32 bits.  puff.c uses the short data type,
+ * assumed to be 16 bits, for arrays in order to conserve memory.  The code
+ * works whether integers are stored big endian or little endian.
+ *
+ * In the comments below are "Format notes" that describe the inflate process
+ * and document some of the less obvious aspects of the format.  This source
+ * code is meant to supplement RFC 1951, which formally describes the deflate
+ * format:
+ *
+ *    http://www.zlib.org/rfc-deflate.html
+ */
+
+/*
+ * Change history:
+ *
+ * 1.0  10 Feb 2002     - First version
+ * 1.1  17 Feb 2002     - Clarifications of some comments and notes
+ *                      - Update puff() dest and source pointers on negative
+ *                        errors to facilitate debugging deflators
+ *                      - Remove longest from struct huffman -- not needed
+ *                      - Simplify offs[] index in construct()
+ *                      - Add input size and checking, using longjmp() to
+ *                        maintain easy readability
+ *                      - Use short data type for large arrays
+ *                      - Use pointers instead of long to specify source and
+ *                        destination sizes to avoid arbitrary 4 GB limits
+ * 1.2  17 Mar 2002     - Add faster version of decode(), doubles speed (!),
+ *                        but leave simple version for readability
+ *                      - Make sure invalid distances detected if pointers
+ *                        are 16 bits
+ *                      - Fix fixed codes table error
+ *                      - Provide a scanning mode for determining size of
+ *                        uncompressed data
+ * 1.3  20 Mar 2002     - Go back to lengths for puff() parameters [Gailly]
+ *                      - Add a puff.h file for the interface
+ *                      - Add braces in puff() for else do [Gailly]
+ *                      - Use indexes instead of pointers for readability
+ * 1.4  31 Mar 2002     - Simplify construct() code set check
+ *                      - Fix some comments
+ *                      - Add FIXLCODES #define
+ * 1.5   6 Apr 2002     - Minor comment fixes
+ * 1.6   7 Aug 2002     - Minor format changes
+ * 1.7   3 Mar 2003     - Added test code for distribution
+ *                      - Added zlib-like license
+ * 1.8   9 Jan 2004     - Added some comments on no distance codes case
+ * 1.9  21 Feb 2008     - Fix bug on 16-bit integer architectures [Pohland]
+ *                      - Catch missing end-of-block symbol error
+ * 2.0  25 Jul 2008     - Add #define to permit distance too far back
+ *                      - Add option in TEST code for puff to write the data
+ *                      - Add option in TEST code to skip input bytes
+ *                      - Allow TEST code to read from piped stdin
+ * 2.1   4 Apr 2010     - Avoid variable initialization for happier compilers
+ *                      - Avoid unsigned comparisons for even happier compilers
+ * 2.2  25 Apr 2010     - Fix bug in variable initializations [Oberhumer]
+ *                      - Add const where appropriate [Oberhumer]
+ *                      - Split if's and ?'s for coverage testing
+ *                      - Break out test code to separate file
+ *                      - Move NIL to puff.h
+ *                      - Allow incomplete code only if single code length is 1
+ *                      - Add full code coverage test to Makefile
+ * 2.3  21 Jan 2013     - Check for invalid code length codes in dynamic blocks
+ */
+
+#include <setjmp.h>             /* for setjmp(), longjmp(), and jmp_buf */
+#include "puff.h"               /* prototype for puff() */
+
+#define local static            /* for local function definitions */
+
+/*
+ * Maximums for allocations and loops.  It is not useful to change these --
+ * they are fixed by the deflate format.
+ */
+#define MAXBITS 15              /* maximum bits in a code */
+#define MAXLCODES 286           /* maximum number of literal/length codes */
+#define MAXDCODES 30            /* maximum number of distance codes */
+#define MAXCODES (MAXLCODES+MAXDCODES)  /* maximum codes lengths to read */
+#define FIXLCODES 288           /* number of fixed literal/length codes */
+
+/* input and output state */
+struct state {
+    /* output state */
+    unsigned char *out;         /* output buffer */
+    unsigned long outlen;       /* available space at out */
+    unsigned long outcnt;       /* bytes written to out so far */
+
+    /* input state */
+    const unsigned char *in;    /* input buffer */
+    unsigned long inlen;        /* available input at in */
+    unsigned long incnt;        /* bytes read so far */
+    int bitbuf;                 /* bit buffer */
+    int bitcnt;                 /* number of bits in bit buffer */
+
+    /* input limit error return state for bits() and decode() */
+    jmp_buf env;
+};
+
+/*
+ * Return need bits from the input stream.  This always leaves less than
+ * eight bits in the buffer.  bits() works properly for need == 0.
+ *
+ * Format notes:
+ *
+ * - Bits are stored in bytes from the least significant bit to the most
+ *   significant bit.  Therefore bits are dropped from the bottom of the bit
+ *   buffer, using shift right, and new bytes are appended to the top of the
+ *   bit buffer, using shift left.
+ */
+local int bits(struct state *s, int need)
+{
+    long val;           /* bit accumulator (can use up to 20 bits) */
+
+    /* load at least need bits into val */
+    val = s->bitbuf;
+    while (s->bitcnt < need) {
+        if (s->incnt == s->inlen)
+            longjmp(s->env, 1);         /* out of input */
+        val |= (long)(s->in[s->incnt++]) << s->bitcnt;  /* load eight bits */
+        s->bitcnt += 8;
+    }
+
+    /* drop need bits and update buffer, always zero to seven bits left */
+    s->bitbuf = (int)(val >> need);
+    s->bitcnt -= need;
+
+    /* return need bits, zeroing the bits above that */
+    return (int)(val & ((1L << need) - 1));
+}
+
+/*
+ * Process a stored block.
+ *
+ * Format notes:
+ *
+ * - After the two-bit stored block type (00), the stored block length and
+ *   stored bytes are byte-aligned for fast copying.  Therefore any leftover
+ *   bits in the byte that has the last bit of the type, as many as seven, are
+ *   discarded.  The value of the discarded bits are not defined and should not
+ *   be checked against any expectation.
+ *
+ * - The second inverted copy of the stored block length does not have to be
+ *   checked, but it's probably a good idea to do so anyway.
+ *
+ * - A stored block can have zero length.  This is sometimes used to byte-align
+ *   subsets of the compressed data for random access or partial recovery.
+ */
+local int stored(struct state *s)
+{
+    unsigned len;       /* length of stored block */
+
+    /* discard leftover bits from current byte (assumes s->bitcnt < 8) */
+    s->bitbuf = 0;
+    s->bitcnt = 0;
+
+    /* get length and check against its one's complement */
+    if (s->incnt + 4 > s->inlen)
+        return 2;                               /* not enough input */
+    len = s->in[s->incnt++];
+    len |= s->in[s->incnt++] << 8;
+    if (s->in[s->incnt++] != (~len & 0xff) ||
+        s->in[s->incnt++] != ((~len >> 8) & 0xff))
+        return -2;                              /* didn't match complement! */
+
+    /* copy len bytes from in to out */
+    if (s->incnt + len > s->inlen)
+        return 2;                               /* not enough input */
+    if (s->out != NIL) {
+        if (s->outcnt + len > s->outlen)
+            return 1;                           /* not enough output space */
+        while (len--)
+            s->out[s->outcnt++] = s->in[s->incnt++];
+    }
+    else {                                      /* just scanning */
+        s->outcnt += len;
+        s->incnt += len;
+    }
+
+    /* done with a valid stored block */
+    return 0;
+}
+
+/*
+ * Huffman code decoding tables.  count[1..MAXBITS] is the number of symbols of
+ * each length, which for a canonical code are stepped through in order.
+ * symbol[] are the symbol values in canonical order, where the number of
+ * entries is the sum of the counts in count[].  The decoding process can be
+ * seen in the function decode() below.
+ */
+struct huffman {
+    short *count;       /* number of symbols of each length */
+    short *symbol;      /* canonically ordered symbols */
+};
+
+/*
+ * Decode a code from the stream s using huffman table h.  Return the symbol or
+ * a negative value if there is an error.  If all of the lengths are zero, i.e.
+ * an empty code, or if the code is incomplete and an invalid code is received,
+ * then -10 is returned after reading MAXBITS bits.
+ *
+ * Format notes:
+ *
+ * - The codes as stored in the compressed data are bit-reversed relative to
+ *   a simple integer ordering of codes of the same lengths.  Hence below the
+ *   bits are pulled from the compressed data one at a time and used to
+ *   build the code value reversed from what is in the stream in order to
+ *   permit simple integer comparisons for decoding.  A table-based decoding
+ *   scheme (as used in zlib) does not need to do this reversal.
+ *
+ * - The first code for the shortest length is all zeros.  Subsequent codes of
+ *   the same length are simply integer increments of the previous code.  When
+ *   moving up a length, a zero bit is appended to the code.  For a complete
+ *   code, the last code of the longest length will be all ones.
+ *
+ * - Incomplete codes are handled by this decoder, since they are permitted
+ *   in the deflate format.  See the format notes for fixed() and dynamic().
+ */
+#ifdef SLOW
+local int decode(struct state *s, const struct huffman *h)
+{
+    int len;            /* current number of bits in code */
+    int code;           /* len bits being decoded */
+    int first;          /* first code of length len */
+    int count;          /* number of codes of length len */
+    int index;          /* index of first code of length len in symbol table */
+
+    code = first = index = 0;
+    for (len = 1; len <= MAXBITS; len++) {
+        code |= bits(s, 1);             /* get next bit */
+        count = h->count[len];
+        if (code - count < first)       /* if length len, return symbol */
+            return h->symbol[index + (code - first)];
+        index += count;                 /* else update for next length */
+        first += count;
+        first <<= 1;
+        code <<= 1;
+    }
+    return -10;                         /* ran out of codes */
+}
+
+/*
+ * A faster version of decode() for real applications of this code.   It's not
+ * as readable, but it makes puff() twice as fast.  And it only makes the code
+ * a few percent larger.
+ */
+#else /* !SLOW */
+local int decode(struct state *s, const struct huffman *h)
+{
+    int len;            /* current number of bits in code */
+    int code;           /* len bits being decoded */
+    int first;          /* first code of length len */
+    int count;          /* number of codes of length len */
+    int index;          /* index of first code of length len in symbol table */
+    int bitbuf;         /* bits from stream */
+    int left;           /* bits left in next or left to process */
+    short *next;        /* next number of codes */
+
+    bitbuf = s->bitbuf;
+    left = s->bitcnt;
+    code = first = index = 0;
+    len = 1;
+    next = h->count + 1;
+    while (1) {
+        while (left--) {
+            code |= bitbuf & 1;
+            bitbuf >>= 1;
+            count = *next++;
+            if (code - count < first) { /* if length len, return symbol */
+                s->bitbuf = bitbuf;
+                s->bitcnt = (s->bitcnt - len) & 7;
+                return h->symbol[index + (code - first)];
+            }
+            index += count;             /* else update for next length */
+            first += count;
+            first <<= 1;
+            code <<= 1;
+            len++;
+        }
+        left = (MAXBITS+1) - len;
+        if (left == 0)
+            break;
+        if (s->incnt == s->inlen)
+            longjmp(s->env, 1);         /* out of input */
+        bitbuf = s->in[s->incnt++];
+        if (left > 8)
+            left = 8;
+    }
+    return -10;                         /* ran out of codes */
+}
+#endif /* SLOW */
+
+/*
+ * Given the list of code lengths length[0..n-1] representing a canonical
+ * Huffman code for n symbols, construct the tables required to decode those
+ * codes.  Those tables are the number of codes of each length, and the symbols
+ * sorted by length, retaining their original order within each length.  The
+ * return value is zero for a complete code set, negative for an over-
+ * subscribed code set, and positive for an incomplete code set.  The tables
+ * can be used if the return value is zero or positive, but they cannot be used
+ * if the return value is negative.  If the return value is zero, it is not
+ * possible for decode() using that table to return an error--any stream of
+ * enough bits will resolve to a symbol.  If the return value is positive, then
+ * it is possible for decode() using that table to return an error for received
+ * codes past the end of the incomplete lengths.
+ *
+ * Not used by decode(), but used for error checking, h->count[0] is the number
+ * of the n symbols not in the code.  So n - h->count[0] is the number of
+ * codes.  This is useful for checking for incomplete codes that have more than
+ * one symbol, which is an error in a dynamic block.
+ *
+ * Assumption: for all i in 0..n-1, 0 <= length[i] <= MAXBITS
+ * This is assured by the construction of the length arrays in dynamic() and
+ * fixed() and is not verified by construct().
+ *
+ * Format notes:
+ *
+ * - Permitted and expected examples of incomplete codes are one of the fixed
+ *   codes and any code with a single symbol which in deflate is coded as one
+ *   bit instead of zero bits.  See the format notes for fixed() and dynamic().
+ *
+ * - Within a given code length, the symbols are kept in ascending order for
+ *   the code bits definition.
+ */
+local int construct(struct huffman *h, const short *length, int n)
+{
+    int symbol;         /* current symbol when stepping through length[] */
+    int len;            /* current length when stepping through h->count[] */
+    int left;           /* number of possible codes left of current length */
+    short offs[MAXBITS+1];      /* offsets in symbol table for each length */
+
+    /* count number of codes of each length */
+    for (len = 0; len <= MAXBITS; len++)
+        h->count[len] = 0;
+    for (symbol = 0; symbol < n; symbol++)
+        (h->count[length[symbol]])++;   /* assumes lengths are within bounds */
+    if (h->count[0] == n)               /* no codes! */
+        return 0;                       /* complete, but decode() will fail */
+
+    /* check for an over-subscribed or incomplete set of lengths */
+    left = 1;                           /* one possible code of zero length */
+    for (len = 1; len <= MAXBITS; len++) {
+        left <<= 1;                     /* one more bit, double codes left */
+        left -= h->count[len];          /* deduct count from possible codes */
+        if (left < 0)
+            return left;                /* over-subscribed--return negative */
+    }                                   /* left > 0 means incomplete */
+
+    /* generate offsets into symbol table for each length for sorting */
+    offs[1] = 0;
+    for (len = 1; len < MAXBITS; len++)
+        offs[len + 1] = offs[len] + h->count[len];
+
+    /*
+     * put symbols in table sorted by length, by symbol order within each
+     * length
+     */
+    for (symbol = 0; symbol < n; symbol++)
+        if (length[symbol] != 0)
+            h->symbol[offs[length[symbol]]++] = symbol;
+
+    /* return zero for complete set, positive for incomplete set */
+    return left;
+}
+
+/*
+ * Decode literal/length and distance codes until an end-of-block code.
+ *
+ * Format notes:
+ *
+ * - Compressed data that is after the block type if fixed or after the code
+ *   description if dynamic is a combination of literals and length/distance
+ *   pairs terminated by and end-of-block code.  Literals are simply Huffman
+ *   coded bytes.  A length/distance pair is a coded length followed by a
+ *   coded distance to represent a string that occurs earlier in the
+ *   uncompressed data that occurs again at the current location.
+ *
+ * - Literals, lengths, and the end-of-block code are combined into a single
+ *   code of up to 286 symbols.  They are 256 literals (0..255), 29 length
+ *   symbols (257..285), and the end-of-block symbol (256).
+ *
+ * - There are 256 possible lengths (3..258), and so 29 symbols are not enough
+ *   to represent all of those.  Lengths 3..10 and 258 are in fact represented
+ *   by just a length symbol.  Lengths 11..257 are represented as a symbol and
+ *   some number of extra bits that are added as an integer to the base length
+ *   of the length symbol.  The number of extra bits is determined by the base
+ *   length symbol.  These are in the static arrays below, lens[] for the base
+ *   lengths and lext[] for the corresponding number of extra bits.
+ *
+ * - The reason that 258 gets its own symbol is that the longest length is used
+ *   often in highly redundant files.  Note that 258 can also be coded as the
+ *   base value 227 plus the maximum extra value of 31.  While a good deflate
+ *   should never do this, it is not an error, and should be decoded properly.
+ *
+ * - If a length is decoded, including its extra bits if any, then it is
+ *   followed a distance code.  There are up to 30 distance symbols.  Again
+ *   there are many more possible distances (1..32768), so extra bits are added
+ *   to a base value represented by the symbol.  The distances 1..4 get their
+ *   own symbol, but the rest require extra bits.  The base distances and
+ *   corresponding number of extra bits are below in the static arrays dist[]
+ *   and dext[].
+ *
+ * - Literal bytes are simply written to the output.  A length/distance pair is
+ *   an instruction to copy previously uncompressed bytes to the output.  The
+ *   copy is from distance bytes back in the output stream, copying for length
+ *   bytes.
+ *
+ * - Distances pointing before the beginning of the output data are not
+ *   permitted.
+ *
+ * - Overlapped copies, where the length is greater than the distance, are
+ *   allowed and common.  For example, a distance of one and a length of 258
+ *   simply copies the last byte 258 times.  A distance of four and a length of
+ *   twelve copies the last four bytes three times.  A simple forward copy
+ *   ignoring whether the length is greater than the distance or not implements
+ *   this correctly.  You should not use memcpy() since its behavior is not
+ *   defined for overlapped arrays.  You should not use memmove() or bcopy()
+ *   since though their behavior -is- defined for overlapping arrays, it is
+ *   defined to do the wrong thing in this case.
+ */
+local int codes(struct state *s,
+                const struct huffman *lencode,
+                const struct huffman *distcode)
+{
+    int symbol;         /* decoded symbol */
+    int len;            /* length for copy */
+    unsigned dist;      /* distance for copy */
+    static const short lens[29] = { /* Size base for length codes 257..285 */
+        3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
+        35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258};
+    static const short lext[29] = { /* Extra bits for length codes 257..285 */
+        0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2,
+        3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0};
+    static const short dists[30] = { /* Offset base for distance codes 0..29 */
+        1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
+        257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
+        8193, 12289, 16385, 24577};
+    static const short dext[30] = { /* Extra bits for distance codes 0..29 */
+        0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6,
+        7, 7, 8, 8, 9, 9, 10, 10, 11, 11,
+        12, 12, 13, 13};
+
+    /* decode literals and length/distance pairs */
+    do {
+        symbol = decode(s, lencode);
+        if (symbol < 0)
+            return symbol;              /* invalid symbol */
+        if (symbol < 256) {             /* literal: symbol is the byte */
+            /* write out the literal */
+            if (s->out != NIL) {
+                if (s->outcnt == s->outlen)
+                    return 1;
+                s->out[s->outcnt] = symbol;
+            }
+            s->outcnt++;
+        }
+        else if (symbol > 256) {        /* length */
+            /* get and compute length */
+            symbol -= 257;
+            if (symbol >= 29)
+                return -10;             /* invalid fixed code */
+            len = lens[symbol] + bits(s, lext[symbol]);
+
+            /* get and check distance */
+            symbol = decode(s, distcode);
+            if (symbol < 0)
+                return symbol;          /* invalid symbol */
+            dist = dists[symbol] + bits(s, dext[symbol]);
+#ifndef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
+            if (dist > s->outcnt)
+                return -11;     /* distance too far back */
+#endif
+
+            /* copy length bytes from distance bytes back */
+            if (s->out != NIL) {
+                if (s->outcnt + len > s->outlen)
+                    return 1;
+                while (len--) {
+                    s->out[s->outcnt] =
+#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
+                        dist > s->outcnt ?
+                            0 :
+#endif
+                            s->out[s->outcnt - dist];
+                    s->outcnt++;
+                }
+            }
+            else
+                s->outcnt += len;
+        }
+    } while (symbol != 256);            /* end of block symbol */
+
+    /* done with a valid fixed or dynamic block */
+    return 0;
+}
+
+/*
+ * Process a fixed codes block.
+ *
+ * Format notes:
+ *
+ * - This block type can be useful for compressing small amounts of data for
+ *   which the size of the code descriptions in a dynamic block exceeds the
+ *   benefit of custom codes for that block.  For fixed codes, no bits are
+ *   spent on code descriptions.  Instead the code lengths for literal/length
+ *   codes and distance codes are fixed.  The specific lengths for each symbol
+ *   can be seen in the "for" loops below.
+ *
+ * - The literal/length code is complete, but has two symbols that are invalid
+ *   and should result in an error if received.  This cannot be implemented
+ *   simply as an incomplete code since those two symbols are in the "middle"
+ *   of the code.  They are eight bits long and the longest literal/length\
+ *   code is nine bits.  Therefore the code must be constructed with those
+ *   symbols, and the invalid symbols must be detected after decoding.
+ *
+ * - The fixed distance codes also have two invalid symbols that should result
+ *   in an error if received.  Since all of the distance codes are the same
+ *   length, this can be implemented as an incomplete code.  Then the invalid
+ *   codes are detected while decoding.
+ */
+local int fixed(struct state *s)
+{
+    static int virgin = 1;
+    static short lencnt[MAXBITS+1], lensym[FIXLCODES];
+    static short distcnt[MAXBITS+1], distsym[MAXDCODES];
+    static struct huffman lencode, distcode;
+
+    /* build fixed huffman tables if first call (may not be thread safe) */
+    if (virgin) {
+        int symbol;
+        short lengths[FIXLCODES];
+
+        /* construct lencode and distcode */
+        lencode.count = lencnt;
+        lencode.symbol = lensym;
+        distcode.count = distcnt;
+        distcode.symbol = distsym;
+
+        /* literal/length table */
+        for (symbol = 0; symbol < 144; symbol++)
+            lengths[symbol] = 8;
+        for (; symbol < 256; symbol++)
+            lengths[symbol] = 9;
+        for (; symbol < 280; symbol++)
+            lengths[symbol] = 7;
+        for (; symbol < FIXLCODES; symbol++)
+            lengths[symbol] = 8;
+        construct(&lencode, lengths, FIXLCODES);
+
+        /* distance table */
+        for (symbol = 0; symbol < MAXDCODES; symbol++)
+            lengths[symbol] = 5;
+        construct(&distcode, lengths, MAXDCODES);
+
+        /* do this just once */
+        virgin = 0;
+    }
+
+    /* decode data until end-of-block code */
+    return codes(s, &lencode, &distcode);
+}
+
+/*
+ * Process a dynamic codes block.
+ *
+ * Format notes:
+ *
+ * - A dynamic block starts with a description of the literal/length and
+ *   distance codes for that block.  New dynamic blocks allow the compressor to
+ *   rapidly adapt to changing data with new codes optimized for that data.
+ *
+ * - The codes used by the deflate format are "canonical", which means that
+ *   the actual bits of the codes are generated in an unambiguous way simply
+ *   from the number of bits in each code.  Therefore the code descriptions
+ *   are simply a list of code lengths for each symbol.
+ *
+ * - The code lengths are stored in order for the symbols, so lengths are
+ *   provided for each of the literal/length symbols, and for each of the
+ *   distance symbols.
+ *
+ * - If a symbol is not used in the block, this is represented by a zero as the
+ *   code length.  This does not mean a zero-length code, but rather that no
+ *   code should be created for this symbol.  There is no way in the deflate
+ *   format to represent a zero-length code.
+ *
+ * - The maximum number of bits in a code is 15, so the possible lengths for
+ *   any code are 1..15.
+ *
+ * - The fact that a length of zero is not permitted for a code has an
+ *   interesting consequence.  Normally if only one symbol is used for a given
+ *   code, then in fact that code could be represented with zero bits.  However
+ *   in deflate, that code has to be at least one bit.  So for example, if
+ *   only a single distance base symbol appears in a block, then it will be
+ *   represented by a single code of length one, in particular one 0 bit.  This
+ *   is an incomplete code, since if a 1 bit is received, it has no meaning,
+ *   and should result in an error.  So incomplete distance codes of one symbol
+ *   should be permitted, and the receipt of invalid codes should be handled.
+ *
+ * - It is also possible to have a single literal/length code, but that code
+ *   must be the end-of-block code, since every dynamic block has one.  This
+ *   is not the most efficient way to create an empty block (an empty fixed
+ *   block is fewer bits), but it is allowed by the format.  So incomplete
+ *   literal/length codes of one symbol should also be permitted.
+ *
+ * - If there are only literal codes and no lengths, then there are no distance
+ *   codes.  This is represented by one distance code with zero bits.
+ *
+ * - The list of up to 286 length/literal lengths and up to 30 distance lengths
+ *   are themselves compressed using Huffman codes and run-length encoding.  In
+ *   the list of code lengths, a 0 symbol means no code, a 1..15 symbol means
+ *   that length, and the symbols 16, 17, and 18 are run-length instructions.
+ *   Each of 16, 17, and 18 are followed by extra bits to define the length of
+ *   the run.  16 copies the last length 3 to 6 times.  17 represents 3 to 10
+ *   zero lengths, and 18 represents 11 to 138 zero lengths.  Unused symbols
+ *   are common, hence the special coding for zero lengths.
+ *
+ * - The symbols for 0..18 are Huffman coded, and so that code must be
+ *   described first.  This is simply a sequence of up to 19 three-bit values
+ *   representing no code (0) or the code length for that symbol (1..7).
+ *
+ * - A dynamic block starts with three fixed-size counts from which is computed
+ *   the number of literal/length code lengths, the number of distance code
+ *   lengths, and the number of code length code lengths (ok, you come up with
+ *   a better name!) in the code descriptions.  For the literal/length and
+ *   distance codes, lengths after those provided are considered zero, i.e. no
+ *   code.  The code length code lengths are received in a permuted order (see
+ *   the order[] array below) to make a short code length code length list more
+ *   likely.  As it turns out, very short and very long codes are less likely
+ *   to be seen in a dynamic code description, hence what may appear initially
+ *   to be a peculiar ordering.
+ *
+ * - Given the number of literal/length code lengths (nlen) and distance code
+ *   lengths (ndist), then they are treated as one long list of nlen + ndist
+ *   code lengths.  Therefore run-length coding can and often does cross the
+ *   boundary between the two sets of lengths.
+ *
+ * - So to summarize, the code description at the start of a dynamic block is
+ *   three counts for the number of code lengths for the literal/length codes,
+ *   the distance codes, and the code length codes.  This is followed by the
+ *   code length code lengths, three bits each.  This is used to construct the
+ *   code length code which is used to read the remainder of the lengths.  Then
+ *   the literal/length code lengths and distance lengths are read as a single
+ *   set of lengths using the code length codes.  Codes are constructed from
+ *   the resulting two sets of lengths, and then finally you can start
+ *   decoding actual compressed data in the block.
+ *
+ * - For reference, a "typical" size for the code description in a dynamic
+ *   block is around 80 bytes.
+ */
+local int dynamic(struct state *s)
+{
+    int nlen, ndist, ncode;             /* number of lengths in descriptor */
+    int index;                          /* index of lengths[] */
+    int err;                            /* construct() return value */
+    short lengths[MAXCODES];            /* descriptor code lengths */
+    short lencnt[MAXBITS+1], lensym[MAXLCODES];         /* lencode memory */
+    short distcnt[MAXBITS+1], distsym[MAXDCODES];       /* distcode memory */
+    struct huffman lencode, distcode;   /* length and distance codes */
+    static const short order[19] =      /* permutation of code length codes */
+        {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
+
+    /* construct lencode and distcode */
+    lencode.count = lencnt;
+    lencode.symbol = lensym;
+    distcode.count = distcnt;
+    distcode.symbol = distsym;
+
+    /* get number of lengths in each table, check lengths */
+    nlen = bits(s, 5) + 257;
+    ndist = bits(s, 5) + 1;
+    ncode = bits(s, 4) + 4;
+    if (nlen > MAXLCODES || ndist > MAXDCODES)
+        return -3;                      /* bad counts */
+
+    /* read code length code lengths (really), missing lengths are zero */
+    for (index = 0; index < ncode; index++)
+        lengths[order[index]] = bits(s, 3);
+    for (; index < 19; index++)
+        lengths[order[index]] = 0;
+
+    /* build huffman table for code lengths codes (use lencode temporarily) */
+    err = construct(&lencode, lengths, 19);
+    if (err != 0)               /* require complete code set here */
+        return -4;
+
+    /* read length/literal and distance code length tables */
+    index = 0;
+    while (index < nlen + ndist) {
+        int symbol;             /* decoded value */
+        int len;                /* last length to repeat */
+
+        symbol = decode(s, &lencode);
+        if (symbol < 0)
+            return symbol;          /* invalid symbol */
+        if (symbol < 16)                /* length in 0..15 */
+            lengths[index++] = symbol;
+        else {                          /* repeat instruction */
+            len = 0;                    /* assume repeating zeros */
+            if (symbol == 16) {         /* repeat last length 3..6 times */
+                if (index == 0)
+                    return -5;          /* no last length! */
+                len = lengths[index - 1];       /* last length */
+                symbol = 3 + bits(s, 2);
+            }
+            else if (symbol == 17)      /* repeat zero 3..10 times */
+                symbol = 3 + bits(s, 3);
+            else                        /* == 18, repeat zero 11..138 times */
+                symbol = 11 + bits(s, 7);
+            if (index + symbol > nlen + ndist)
+                return -6;              /* too many lengths! */
+            while (symbol--)            /* repeat last or zero symbol times */
+                lengths[index++] = len;
+        }
+    }
+
+    /* check for end-of-block code -- there better be one! */
+    if (lengths[256] == 0)
+        return -9;
+
+    /* build huffman table for literal/length codes */
+    err = construct(&lencode, lengths, nlen);
+    if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1]))
+        return -7;      /* incomplete code ok only for single length 1 code */
+
+    /* build huffman table for distance codes */
+    err = construct(&distcode, lengths + nlen, ndist);
+    if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1]))
+        return -8;      /* incomplete code ok only for single length 1 code */
+
+    /* decode data until end-of-block code */
+    return codes(s, &lencode, &distcode);
+}
+
+/*
+ * Inflate source to dest.  On return, destlen and sourcelen are updated to the
+ * size of the uncompressed data and the size of the deflate data respectively.
+ * On success, the return value of puff() is zero.  If there is an error in the
+ * source data, i.e. it is not in the deflate format, then a negative value is
+ * returned.  If there is not enough input available or there is not enough
+ * output space, then a positive error is returned.  In that case, destlen and
+ * sourcelen are not updated to facilitate retrying from the beginning with the
+ * provision of more input data or more output space.  In the case of invalid
+ * inflate data (a negative error), the dest and source pointers are updated to
+ * facilitate the debugging of deflators.
+ *
+ * puff() also has a mode to determine the size of the uncompressed output with
+ * no output written.  For this dest must be (unsigned char *)0.  In this case,
+ * the input value of *destlen is ignored, and on return *destlen is set to the
+ * size of the uncompressed output.
+ *
+ * The return codes are:
+ *
+ *   2:  available inflate data did not terminate
+ *   1:  output space exhausted before completing inflate
+ *   0:  successful inflate
+ *  -1:  invalid block type (type == 3)
+ *  -2:  stored block length did not match one's complement
+ *  -3:  dynamic block code description: too many length or distance codes
+ *  -4:  dynamic block code description: code lengths codes incomplete
+ *  -5:  dynamic block code description: repeat lengths with no first length
+ *  -6:  dynamic block code description: repeat more than specified lengths
+ *  -7:  dynamic block code description: invalid literal/length code lengths
+ *  -8:  dynamic block code description: invalid distance code lengths
+ *  -9:  dynamic block code description: missing end-of-block code
+ * -10:  invalid literal/length or distance code in fixed or dynamic block
+ * -11:  distance is too far back in fixed or dynamic block
+ *
+ * Format notes:
+ *
+ * - Three bits are read for each block to determine the kind of block and
+ *   whether or not it is the last block.  Then the block is decoded and the
+ *   process repeated if it was not the last block.
+ *
+ * - The leftover bits in the last byte of the deflate data after the last
+ *   block (if it was a fixed or dynamic block) are undefined and have no
+ *   expected values to check.
+ */
+int puff(unsigned char *dest,           /* pointer to destination pointer */
+         unsigned long *destlen,        /* amount of output space */
+         const unsigned char *source,   /* pointer to source data pointer */
+         unsigned long *sourcelen)      /* amount of input available */
+{
+    struct state s;             /* input/output state */
+    int last, type;             /* block information */
+    int err;                    /* return value */
+
+    /* initialize output state */
+    s.out = dest;
+    s.outlen = *destlen;                /* ignored if dest is NIL */
+    s.outcnt = 0;
+
+    /* initialize input state */
+    s.in = source;
+    s.inlen = *sourcelen;
+    s.incnt = 0;
+    s.bitbuf = 0;
+    s.bitcnt = 0;
+
+    /* return if bits() or decode() tries to read past available input */
+    if (setjmp(s.env) != 0)             /* if came back here via longjmp() */
+        err = 2;                        /* then skip do-loop, return error */
+    else {
+        /* process blocks until last block or error */
+        do {
+            last = bits(&s, 1);         /* one if last block */
+            type = bits(&s, 2);         /* block type 0..3 */
+            err = type == 0 ?
+                    stored(&s) :
+                    (type == 1 ?
+                        fixed(&s) :
+                        (type == 2 ?
+                            dynamic(&s) :
+                            -1));       /* type == 3, invalid */
+            if (err != 0)
+                break;                  /* return with error */
+        } while (!last);
+    }
+
+    /* update the lengths and return */
+    if (err <= 0) {
+        *destlen = s.outcnt;
+        *sourcelen = s.incnt;
+    }
+    return err;
+}
diff --git a/compat/zlib/contrib/puff/puff.h b/compat/zlib/contrib/puff/puff.h
new file mode 100644
index 0000000..e23a245
--- /dev/null
+++ b/compat/zlib/contrib/puff/puff.h
@@ -0,0 +1,35 @@
+/* puff.h
+  Copyright (C) 2002-2013 Mark Adler, all rights reserved
+  version 2.3, 21 Jan 2013
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the author be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Mark Adler    madler@alumni.caltech.edu
+ */
+
+
+/*
+ * See puff.c for purpose and usage.
+ */
+#ifndef NIL
+#  define NIL ((unsigned char *)0)      /* for no output option */
+#endif
+
+int puff(unsigned char *dest,           /* pointer to destination pointer */
+         unsigned long *destlen,        /* amount of output space */
+         const unsigned char *source,   /* pointer to source data pointer */
+         unsigned long *sourcelen);     /* amount of input available */
diff --git a/compat/zlib/contrib/puff/pufftest.c b/compat/zlib/contrib/puff/pufftest.c
new file mode 100644
index 0000000..5f72ecc
--- /dev/null
+++ b/compat/zlib/contrib/puff/pufftest.c
@@ -0,0 +1,165 @@
+/*
+ * pufftest.c
+ * Copyright (C) 2002-2013 Mark Adler
+ * For conditions of distribution and use, see copyright notice in puff.h
+ * version 2.3, 21 Jan 2013
+ */
+
+/* Example of how to use puff().
+
+   Usage: puff [-w] [-f] [-nnn] file
+          ... | puff [-w] [-f] [-nnn]
+
+   where file is the input file with deflate data, nnn is the number of bytes
+   of input to skip before inflating (e.g. to skip a zlib or gzip header), and
+   -w is used to write the decompressed data to stdout.  -f is for coverage
+   testing, and causes pufftest to fail with not enough output space (-f does
+   a write like -w, so -w is not required). */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "puff.h"
+
+#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
+#  include <fcntl.h>
+#  include <io.h>
+#  define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
+#else
+#  define SET_BINARY_MODE(file)
+#endif
+
+#define local static
+
+/* Return size times approximately the cube root of 2, keeping the result as 1,
+   3, or 5 times a power of 2 -- the result is always > size, until the result
+   is the maximum value of an unsigned long, where it remains.  This is useful
+   to keep reallocations less than ~33% over the actual data. */
+local size_t bythirds(size_t size)
+{
+    int n;
+    size_t m;
+
+    m = size;
+    for (n = 0; m; n++)
+        m >>= 1;
+    if (n < 3)
+        return size + 1;
+    n -= 3;
+    m = size >> n;
+    m += m == 6 ? 2 : 1;
+    m <<= n;
+    return m > size ? m : (size_t)(-1);
+}
+
+/* Read the input file *name, or stdin if name is NULL, into allocated memory.
+   Reallocate to larger buffers until the entire file is read in.  Return a
+   pointer to the allocated data, or NULL if there was a memory allocation
+   failure.  *len is the number of bytes of data read from the input file (even
+   if load() returns NULL).  If the input file was empty or could not be opened
+   or read, *len is zero. */
+local void *load(const char *name, size_t *len)
+{
+    size_t size;
+    void *buf, *swap;
+    FILE *in;
+
+    *len = 0;
+    buf = malloc(size = 4096);
+    if (buf == NULL)
+        return NULL;
+    in = name == NULL ? stdin : fopen(name, "rb");
+    if (in != NULL) {
+        for (;;) {
+            *len += fread((char *)buf + *len, 1, size - *len, in);
+            if (*len < size) break;
+            size = bythirds(size);
+            if (size == *len || (swap = realloc(buf, size)) == NULL) {
+                free(buf);
+                buf = NULL;
+                break;
+            }
+            buf = swap;
+        }
+        fclose(in);
+    }
+    return buf;
+}
+
+int main(int argc, char **argv)
+{
+    int ret, put = 0, fail = 0;
+    unsigned skip = 0;
+    char *arg, *name = NULL;
+    unsigned char *source = NULL, *dest;
+    size_t len = 0;
+    unsigned long sourcelen, destlen;
+
+    /* process arguments */
+    while (arg = *++argv, --argc)
+        if (arg[0] == '-') {
+            if (arg[1] == 'w' && arg[2] == 0)
+                put = 1;
+            else if (arg[1] == 'f' && arg[2] == 0)
+                fail = 1, put = 1;
+            else if (arg[1] >= '0' && arg[1] <= '9')
+                skip = (unsigned)atoi(arg + 1);
+            else {
+                fprintf(stderr, "invalid option %s\n", arg);
+                return 3;
+            }
+        }
+        else if (name != NULL) {
+            fprintf(stderr, "only one file name allowed\n");
+            return 3;
+        }
+        else
+            name = arg;
+    source = load(name, &len);
+    if (source == NULL) {
+        fprintf(stderr, "memory allocation failure\n");
+        return 4;
+    }
+    if (len == 0) {
+        fprintf(stderr, "could not read %s, or it was empty\n",
+                name == NULL ? "<stdin>" : name);
+        free(source);
+        return 3;
+    }
+    if (skip >= len) {
+        fprintf(stderr, "skip request of %d leaves no input\n", skip);
+        free(source);
+        return 3;
+    }
+
+    /* test inflate data with offset skip */
+    len -= skip;
+    sourcelen = (unsigned long)len;
+    ret = puff(NIL, &destlen, source + skip, &sourcelen);
+    if (ret)
+        fprintf(stderr, "puff() failed with return code %d\n", ret);
+    else {
+        fprintf(stderr, "puff() succeeded uncompressing %lu bytes\n", destlen);
+        if (sourcelen < len) fprintf(stderr, "%lu compressed bytes unused\n",
+                                     len - sourcelen);
+    }
+
+    /* if requested, inflate again and write decompressed data to stdout */
+    if (put && ret == 0) {
+        if (fail)
+            destlen >>= 1;
+        dest = malloc(destlen);
+        if (dest == NULL) {
+            fprintf(stderr, "memory allocation failure\n");
+            free(source);
+            return 4;
+        }
+        puff(dest, &destlen, source + skip, &sourcelen);
+        SET_BINARY_MODE(stdout);
+        fwrite(dest, 1, destlen, stdout);
+        free(dest);
+    }
+
+    /* clean up */
+    free(source);
+    return ret;
+}
diff --git a/compat/zlib/contrib/puff/zeros.raw b/compat/zlib/contrib/puff/zeros.raw
new file mode 100644
index 0000000..0a90e76
--- /dev/null
+++ b/compat/zlib/contrib/puff/zeros.raw
diff --git a/compat/zlib/contrib/testzlib/testzlib.c b/compat/zlib/contrib/testzlib/testzlib.c
new file mode 100644
index 0000000..c4b0148
--- /dev/null
+++ b/compat/zlib/contrib/testzlib/testzlib.c
@@ -0,0 +1,275 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <windows.h>
+
+#include "zlib.h"
+
+
+void MyDoMinus64(LARGE_INTEGER *R,LARGE_INTEGER A,LARGE_INTEGER B)
+{
+    R->HighPart = A.HighPart - B.HighPart;
+    if (A.LowPart >= B.LowPart)
+        R->LowPart = A.LowPart - B.LowPart;
+    else
+    {
+        R->LowPart = A.LowPart - B.LowPart;
+        R->HighPart --;
+    }
+}
+
+#ifdef _M_X64
+// see http://msdn2.microsoft.com/library/twchhe95(en-us,vs.80).aspx for __rdtsc
+unsigned __int64 __rdtsc(void);
+void BeginCountRdtsc(LARGE_INTEGER * pbeginTime64)
+{
+ //   printf("rdtsc = %I64x\n",__rdtsc());
+   pbeginTime64->QuadPart=__rdtsc();
+}
+
+LARGE_INTEGER GetResRdtsc(LARGE_INTEGER beginTime64,BOOL fComputeTimeQueryPerf)
+{
+    LARGE_INTEGER LIres;
+    unsigned _int64 res=__rdtsc()-((unsigned _int64)(beginTime64.QuadPart));
+    LIres.QuadPart=res;
+   // printf("rdtsc = %I64x\n",__rdtsc());
+    return LIres;
+}
+#else
+#ifdef _M_IX86
+void myGetRDTSC32(LARGE_INTEGER * pbeginTime64)
+{
+    DWORD dwEdx,dwEax;
+    _asm
+    {
+        rdtsc
+        mov dwEax,eax
+        mov dwEdx,edx
+    }
+    pbeginTime64->LowPart=dwEax;
+    pbeginTime64->HighPart=dwEdx;
+}
+
+void BeginCountRdtsc(LARGE_INTEGER * pbeginTime64)
+{
+    myGetRDTSC32(pbeginTime64);
+}
+
+LARGE_INTEGER GetResRdtsc(LARGE_INTEGER beginTime64,BOOL fComputeTimeQueryPerf)
+{
+    LARGE_INTEGER LIres,endTime64;
+    myGetRDTSC32(&endTime64);
+
+    LIres.LowPart=LIres.HighPart=0;
+    MyDoMinus64(&LIres,endTime64,beginTime64);
+    return LIres;
+}
+#else
+void myGetRDTSC32(LARGE_INTEGER * pbeginTime64)
+{
+}
+
+void BeginCountRdtsc(LARGE_INTEGER * pbeginTime64)
+{
+}
+
+LARGE_INTEGER GetResRdtsc(LARGE_INTEGER beginTime64,BOOL fComputeTimeQueryPerf)
+{
+    LARGE_INTEGER lr;
+    lr.QuadPart=0;
+    return lr;
+}
+#endif
+#endif
+
+void BeginCountPerfCounter(LARGE_INTEGER * pbeginTime64,BOOL fComputeTimeQueryPerf)
+{
+    if ((!fComputeTimeQueryPerf) || (!QueryPerformanceCounter(pbeginTime64)))
+    {
+        pbeginTime64->LowPart = GetTickCount();
+        pbeginTime64->HighPart = 0;
+    }
+}
+
+DWORD GetMsecSincePerfCounter(LARGE_INTEGER beginTime64,BOOL fComputeTimeQueryPerf)
+{
+    LARGE_INTEGER endTime64,ticksPerSecond,ticks;
+    DWORDLONG ticksShifted,tickSecShifted;
+    DWORD dwLog=16+0;
+    DWORD dwRet;
+    if ((!fComputeTimeQueryPerf) || (!QueryPerformanceCounter(&endTime64)))
+        dwRet = (GetTickCount() - beginTime64.LowPart)*1;
+    else
+    {
+        MyDoMinus64(&ticks,endTime64,beginTime64);
+        QueryPerformanceFrequency(&ticksPerSecond);
+
+
+        {
+            ticksShifted = Int64ShrlMod32(*(DWORDLONG*)&ticks,dwLog);
+            tickSecShifted = Int64ShrlMod32(*(DWORDLONG*)&ticksPerSecond,dwLog);
+
+        }
+
+        dwRet = (DWORD)((((DWORD)ticksShifted)*1000)/(DWORD)(tickSecShifted));
+        dwRet *=1;
+    }
+    return dwRet;
+}
+
+int ReadFileMemory(const char* filename,long* plFileSize,unsigned char** pFilePtr)
+{
+    FILE* stream;
+    unsigned char* ptr;
+    int retVal=1;
+    stream=fopen(filename, "rb");
+    if (stream==NULL)
+        return 0;
+
+    fseek(stream,0,SEEK_END);
+
+    *plFileSize=ftell(stream);
+    fseek(stream,0,SEEK_SET);
+    ptr=malloc((*plFileSize)+1);
+    if (ptr==NULL)
+        retVal=0;
+    else
+    {
+        if (fread(ptr, 1, *plFileSize,stream) != (*plFileSize))
+            retVal=0;
+    }
+    fclose(stream);
+    *pFilePtr=ptr;
+    return retVal;
+}
+
+int main(int argc, char *argv[])
+{
+    int BlockSizeCompress=0x8000;
+    int BlockSizeUncompress=0x8000;
+    int cprLevel=Z_DEFAULT_COMPRESSION ;
+    long lFileSize;
+    unsigned char* FilePtr;
+    long lBufferSizeCpr;
+    long lBufferSizeUncpr;
+    long lCompressedSize=0;
+    unsigned char* CprPtr;
+    unsigned char* UncprPtr;
+    long lSizeCpr,lSizeUncpr;
+    DWORD dwGetTick,dwMsecQP;
+    LARGE_INTEGER li_qp,li_rdtsc,dwResRdtsc;
+
+    if (argc<=1)
+    {
+        printf("run TestZlib <File> [BlockSizeCompress] [BlockSizeUncompress] [compres. level]\n");
+        return 0;
+    }
+
+    if (ReadFileMemory(argv[1],&lFileSize,&FilePtr)==0)
+    {
+        printf("error reading %s\n",argv[1]);
+        return 1;
+    }
+    else printf("file %s read, %ld bytes\n",argv[1],lFileSize);
+
+    if (argc>=3)
+        BlockSizeCompress=atol(argv[2]);
+
+    if (argc>=4)
+        BlockSizeUncompress=atol(argv[3]);
+
+    if (argc>=5)
+        cprLevel=(int)atol(argv[4]);
+
+    lBufferSizeCpr = lFileSize + (lFileSize/0x10) + 0x200;
+    lBufferSizeUncpr = lBufferSizeCpr;
+
+    CprPtr=(unsigned char*)malloc(lBufferSizeCpr + BlockSizeCompress);
+
+    BeginCountPerfCounter(&li_qp,TRUE);
+    dwGetTick=GetTickCount();
+    BeginCountRdtsc(&li_rdtsc);
+    {
+        z_stream zcpr;
+        int ret=Z_OK;
+        long lOrigToDo = lFileSize;
+        long lOrigDone = 0;
+        int step=0;
+        memset(&zcpr,0,sizeof(z_stream));
+        deflateInit(&zcpr,cprLevel);
+
+        zcpr.next_in = FilePtr;
+        zcpr.next_out = CprPtr;
+
+
+        do
+        {
+            long all_read_before = zcpr.total_in;
+            zcpr.avail_in = min(lOrigToDo,BlockSizeCompress);
+            zcpr.avail_out = BlockSizeCompress;
+            ret=deflate(&zcpr,(zcpr.avail_in==lOrigToDo) ? Z_FINISH : Z_SYNC_FLUSH);
+            lOrigDone += (zcpr.total_in-all_read_before);
+            lOrigToDo -= (zcpr.total_in-all_read_before);
+            step++;
+        } while (ret==Z_OK);
+
+        lSizeCpr=zcpr.total_out;
+        deflateEnd(&zcpr);
+        dwGetTick=GetTickCount()-dwGetTick;
+        dwMsecQP=GetMsecSincePerfCounter(li_qp,TRUE);
+        dwResRdtsc=GetResRdtsc(li_rdtsc,TRUE);
+        printf("total compress size = %u, in %u step\n",lSizeCpr,step);
+        printf("time = %u msec = %f sec\n",dwGetTick,dwGetTick/(double)1000.);
+        printf("defcpr time QP = %u msec = %f sec\n",dwMsecQP,dwMsecQP/(double)1000.);
+        printf("defcpr result rdtsc = %I64x\n\n",dwResRdtsc.QuadPart);
+    }
+
+    CprPtr=(unsigned char*)realloc(CprPtr,lSizeCpr);
+    UncprPtr=(unsigned char*)malloc(lBufferSizeUncpr + BlockSizeUncompress);
+
+    BeginCountPerfCounter(&li_qp,TRUE);
+    dwGetTick=GetTickCount();
+    BeginCountRdtsc(&li_rdtsc);
+    {
+        z_stream zcpr;
+        int ret=Z_OK;
+        long lOrigToDo = lSizeCpr;
+        long lOrigDone = 0;
+        int step=0;
+        memset(&zcpr,0,sizeof(z_stream));
+        inflateInit(&zcpr);
+
+        zcpr.next_in = CprPtr;
+        zcpr.next_out = UncprPtr;
+
+
+        do
+        {
+            long all_read_before = zcpr.total_in;
+            zcpr.avail_in = min(lOrigToDo,BlockSizeUncompress);
+            zcpr.avail_out = BlockSizeUncompress;
+            ret=inflate(&zcpr,Z_SYNC_FLUSH);
+            lOrigDone += (zcpr.total_in-all_read_before);
+            lOrigToDo -= (zcpr.total_in-all_read_before);
+            step++;
+        } while (ret==Z_OK);
+
+        lSizeUncpr=zcpr.total_out;
+        inflateEnd(&zcpr);
+        dwGetTick=GetTickCount()-dwGetTick;
+        dwMsecQP=GetMsecSincePerfCounter(li_qp,TRUE);
+        dwResRdtsc=GetResRdtsc(li_rdtsc,TRUE);
+        printf("total uncompress size = %u, in %u step\n",lSizeUncpr,step);
+        printf("time = %u msec = %f sec\n",dwGetTick,dwGetTick/(double)1000.);
+        printf("uncpr  time QP = %u msec = %f sec\n",dwMsecQP,dwMsecQP/(double)1000.);
+        printf("uncpr  result rdtsc = %I64x\n\n",dwResRdtsc.QuadPart);
+    }
+
+    if (lSizeUncpr==lFileSize)
+    {
+        if (memcmp(FilePtr,UncprPtr,lFileSize)==0)
+            printf("compare ok\n");
+
+    }
+
+    return 0;
+}
diff --git a/compat/zlib/contrib/testzlib/testzlib.txt b/compat/zlib/contrib/testzlib/testzlib.txt
new file mode 100644
index 0000000..62258f1
--- /dev/null
+++ b/compat/zlib/contrib/testzlib/testzlib.txt
@@ -0,0 +1,10 @@
+To build testzLib with Visual Studio 2005:
+
+copy to a directory file from :
+- root of zLib tree
+- contrib/testzlib
+- contrib/masmx86
+- contrib/masmx64
+- contrib/vstudio/vc7
+
+and open testzlib8.sln
+\ No newline at end of file
diff --git a/compat/zlib/contrib/untgz/Makefile b/compat/zlib/contrib/untgz/Makefile
new file mode 100644
index 0000000..b54266f
--- /dev/null
+++ b/compat/zlib/contrib/untgz/Makefile
@@ -0,0 +1,14 @@
+CC=cc
+CFLAGS=-g
+
+untgz: untgz.o ../../libz.a
+	$(CC) $(CFLAGS) -o untgz untgz.o -L../.. -lz
+
+untgz.o: untgz.c ../../zlib.h
+	$(CC) $(CFLAGS) -c -I../.. untgz.c
+
+../../libz.a:
+	cd ../..; ./configure; make
+
+clean:
+	rm -f untgz untgz.o *~
diff --git a/compat/zlib/contrib/untgz/Makefile.msc b/compat/zlib/contrib/untgz/Makefile.msc
new file mode 100644
index 0000000..77b8602
--- /dev/null
+++ b/compat/zlib/contrib/untgz/Makefile.msc
@@ -0,0 +1,17 @@
+CC=cl
+CFLAGS=-MD
+
+untgz.exe: untgz.obj ..\..\zlib.lib
+	$(CC) $(CFLAGS) untgz.obj ..\..\zlib.lib
+
+untgz.obj: untgz.c ..\..\zlib.h
+	$(CC) $(CFLAGS) -c -I..\.. untgz.c
+
+..\..\zlib.lib:
+	cd ..\..
+	$(MAKE) -f win32\makefile.msc
+	cd contrib\untgz
+
+clean:
+	-del untgz.obj
+	-del untgz.exe
diff --git a/compat/zlib/contrib/untgz/untgz.c b/compat/zlib/contrib/untgz/untgz.c
new file mode 100644
index 0000000..7857921
--- /dev/null
+++ b/compat/zlib/contrib/untgz/untgz.c
@@ -0,0 +1,667 @@
+/*
+ * untgz.c -- Display contents and extract files from a gzip'd TAR file
+ *
+ * written by Pedro A. Aranda Gutierrez <paag@tid.es>
+ * adaptation to Unix by Jean-loup Gailly <jloup@gzip.org>
+ * various fixes by Cosmin Truta <cosmint@cs.ubbcluj.ro>
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <errno.h>
+
+#include "zlib.h"
+
+#ifdef _WIN32
+#  include <direct.h>
+#  include <io.h>
+#  include <windows.h>
+#  ifndef F_OK
+#    define F_OK  0
+#  endif
+#  define mkdir(dirname,mode)   _mkdir(dirname)
+#  ifdef _MSC_VER
+#    define access(path,mode)   _access(path,mode)
+#    define chmod(path,mode)    _chmod(path,mode)
+#    define strdup(str)         _strdup(str)
+#  endif
+#else
+#  include <sys/stat.h>
+#  include <unistd.h>
+#  include <utime.h>
+#endif
+
+
+/* values used in typeflag field */
+
+#define REGTYPE  '0'            /* regular file */
+#define AREGTYPE '\0'           /* regular file */
+#define LNKTYPE  '1'            /* link */
+#define SYMTYPE  '2'            /* reserved */
+#define CHRTYPE  '3'            /* character special */
+#define BLKTYPE  '4'            /* block special */
+#define DIRTYPE  '5'            /* directory */
+#define FIFOTYPE '6'            /* FIFO special */
+#define CONTTYPE '7'            /* reserved */
+
+/* GNU tar extensions */
+
+#define GNUTYPE_DUMPDIR  'D'    /* file names from dumped directory */
+#define GNUTYPE_LONGLINK 'K'    /* long link name */
+#define GNUTYPE_LONGNAME 'L'    /* long file name */
+#define GNUTYPE_MULTIVOL 'M'    /* continuation of file from another volume */
+#define GNUTYPE_NAMES    'N'    /* file name that does not fit into main hdr */
+#define GNUTYPE_SPARSE   'S'    /* sparse file */
+#define GNUTYPE_VOLHDR   'V'    /* tape/volume header */
+
+
+/* tar header */
+
+#define BLOCKSIZE     512
+#define SHORTNAMESIZE 100
+
+struct tar_header
+{                               /* byte offset */
+  char name[100];               /*   0 */
+  char mode[8];                 /* 100 */
+  char uid[8];                  /* 108 */
+  char gid[8];                  /* 116 */
+  char size[12];                /* 124 */
+  char mtime[12];               /* 136 */
+  char chksum[8];               /* 148 */
+  char typeflag;                /* 156 */
+  char linkname[100];           /* 157 */
+  char magic[6];                /* 257 */
+  char version[2];              /* 263 */
+  char uname[32];               /* 265 */
+  char gname[32];               /* 297 */
+  char devmajor[8];             /* 329 */
+  char devminor[8];             /* 337 */
+  char prefix[155];             /* 345 */
+                                /* 500 */
+};
+
+union tar_buffer
+{
+  char               buffer[BLOCKSIZE];
+  struct tar_header  header;
+};
+
+struct attr_item
+{
+  struct attr_item  *next;
+  char              *fname;
+  int                mode;
+  time_t             time;
+};
+
+enum { TGZ_EXTRACT, TGZ_LIST, TGZ_INVALID };
+
+char *prog;
+
+void error(const char *msg)
+{
+  fprintf(stderr, "%s: %s\n", prog, msg);
+  exit(1);
+}
+
+const char *TGZsuffix[] = { "\0", ".tar", ".tar.gz", ".taz", ".tgz", NULL };
+
+/* return the file name of the TGZ archive */
+/* or NULL if it does not exist */
+
+char *TGZfname (const char *arcname)
+{
+  static char buffer[1024];
+  int origlen,i;
+
+  strcpy(buffer,arcname);
+  origlen = strlen(buffer);
+
+  for (i=0; TGZsuffix[i]; i++)
+    {
+       strcpy(buffer+origlen,TGZsuffix[i]);
+       if (access(buffer,F_OK) == 0)
+         return buffer;
+    }
+  return NULL;
+}
+
+
+/* error message for the filename */
+
+void TGZnotfound (const char *arcname)
+{
+  int i;
+
+  fprintf(stderr,"%s: Couldn't find ",prog);
+  for (i=0;TGZsuffix[i];i++)
+    fprintf(stderr,(TGZsuffix[i+1]) ? "%s%s, " : "or %s%s\n",
+            arcname,
+            TGZsuffix[i]);
+  exit(1);
+}
+
+
+/* convert octal digits to int */
+/* on error return -1 */
+
+int getoct (char *p,int width)
+{
+  int result = 0;
+  char c;
+
+  while (width--)
+    {
+      c = *p++;
+      if (c == 0)
+        break;
+      if (c == ' ')
+        continue;
+      if (c < '0' || c > '7')
+        return -1;
+      result = result * 8 + (c - '0');
+    }
+  return result;
+}
+
+
+/* convert time_t to string */
+/* use the "YYYY/MM/DD hh:mm:ss" format */
+
+char *strtime (time_t *t)
+{
+  struct tm   *local;
+  static char result[32];
+
+  local = localtime(t);
+  sprintf(result,"%4d/%02d/%02d %02d:%02d:%02d",
+          local->tm_year+1900, local->tm_mon+1, local->tm_mday,
+          local->tm_hour, local->tm_min, local->tm_sec);
+  return result;
+}
+
+
+/* set file time */
+
+int setfiletime (char *fname,time_t ftime)
+{
+#ifdef _WIN32
+  static int isWinNT = -1;
+  SYSTEMTIME st;
+  FILETIME locft, modft;
+  struct tm *loctm;
+  HANDLE hFile;
+  int result;
+
+  loctm = localtime(&ftime);
+  if (loctm == NULL)
+    return -1;
+
+  st.wYear         = (WORD)loctm->tm_year + 1900;
+  st.wMonth        = (WORD)loctm->tm_mon + 1;
+  st.wDayOfWeek    = (WORD)loctm->tm_wday;
+  st.wDay          = (WORD)loctm->tm_mday;
+  st.wHour         = (WORD)loctm->tm_hour;
+  st.wMinute       = (WORD)loctm->tm_min;
+  st.wSecond       = (WORD)loctm->tm_sec;
+  st.wMilliseconds = 0;
+  if (!SystemTimeToFileTime(&st, &locft) ||
+      !LocalFileTimeToFileTime(&locft, &modft))
+    return -1;
+
+  if (isWinNT < 0)
+    isWinNT = (GetVersion() < 0x80000000) ? 1 : 0;
+  hFile = CreateFile(fname, GENERIC_WRITE, 0, NULL, OPEN_EXISTING,
+                     (isWinNT ? FILE_FLAG_BACKUP_SEMANTICS : 0),
+                     NULL);
+  if (hFile == INVALID_HANDLE_VALUE)
+    return -1;
+  result = SetFileTime(hFile, NULL, NULL, &modft) ? 0 : -1;
+  CloseHandle(hFile);
+  return result;
+#else
+  struct utimbuf settime;
+
+  settime.actime = settime.modtime = ftime;
+  return utime(fname,&settime);
+#endif
+}
+
+
+/* push file attributes */
+
+void push_attr(struct attr_item **list,char *fname,int mode,time_t time)
+{
+  struct attr_item *item;
+
+  item = (struct attr_item *)malloc(sizeof(struct attr_item));
+  if (item == NULL)
+    error("Out of memory");
+  item->fname = strdup(fname);
+  item->mode  = mode;
+  item->time  = time;
+  item->next  = *list;
+  *list       = item;
+}
+
+
+/* restore file attributes */
+
+void restore_attr(struct attr_item **list)
+{
+  struct attr_item *item, *prev;
+
+  for (item = *list; item != NULL; )
+    {
+      setfiletime(item->fname,item->time);
+      chmod(item->fname,item->mode);
+      prev = item;
+      item = item->next;
+      free(prev);
+    }
+  *list = NULL;
+}
+
+
+/* match regular expression */
+
+#define ISSPECIAL(c) (((c) == '*') || ((c) == '/'))
+
+int ExprMatch (char *string,char *expr)
+{
+  while (1)
+    {
+      if (ISSPECIAL(*expr))
+        {
+          if (*expr == '/')
+            {
+              if (*string != '\\' && *string != '/')
+                return 0;
+              string ++; expr++;
+            }
+          else if (*expr == '*')
+            {
+              if (*expr ++ == 0)
+                return 1;
+              while (*++string != *expr)
+                if (*string == 0)
+                  return 0;
+            }
+        }
+      else
+        {
+          if (*string != *expr)
+            return 0;
+          if (*expr++ == 0)
+            return 1;
+          string++;
+        }
+    }
+}
+
+
+/* recursive mkdir */
+/* abort on ENOENT; ignore other errors like "directory already exists" */
+/* return 1 if OK */
+/*        0 on error */
+
+int makedir (char *newdir)
+{
+  char *buffer = strdup(newdir);
+  char *p;
+  int  len = strlen(buffer);
+
+  if (len <= 0) {
+    free(buffer);
+    return 0;
+  }
+  if (buffer[len-1] == '/') {
+    buffer[len-1] = '\0';
+  }
+  if (mkdir(buffer, 0755) == 0)
+    {
+      free(buffer);
+      return 1;
+    }
+
+  p = buffer+1;
+  while (1)
+    {
+      char hold;
+
+      while(*p && *p != '\\' && *p != '/')
+        p++;
+      hold = *p;
+      *p = 0;
+      if ((mkdir(buffer, 0755) == -1) && (errno == ENOENT))
+        {
+          fprintf(stderr,"%s: Couldn't create directory %s\n",prog,buffer);
+          free(buffer);
+          return 0;
+        }
+      if (hold == 0)
+        break;
+      *p++ = hold;
+    }
+  free(buffer);
+  return 1;
+}
+
+
+int matchname (int arg,int argc,char **argv,char *fname)
+{
+  if (arg == argc)      /* no arguments given (untgz tgzarchive) */
+    return 1;
+
+  while (arg < argc)
+    if (ExprMatch(fname,argv[arg++]))
+      return 1;
+
+  return 0; /* ignore this for the moment being */
+}
+
+
+/* tar file list or extract */
+
+int tar (gzFile in,int action,int arg,int argc,char **argv)
+{
+  union  tar_buffer buffer;
+  int    len;
+  int    err;
+  int    getheader = 1;
+  int    remaining = 0;
+  FILE   *outfile = NULL;
+  char   fname[BLOCKSIZE];
+  int    tarmode;
+  time_t tartime;
+  struct attr_item *attributes = NULL;
+
+  if (action == TGZ_LIST)
+    printf("    date      time     size                       file\n"
+           " ---------- -------- --------- -------------------------------------\n");
+  while (1)
+    {
+      len = gzread(in, &buffer, BLOCKSIZE);
+      if (len < 0)
+        error(gzerror(in, &err));
+      /*
+       * Always expect complete blocks to process
+       * the tar information.
+       */
+      if (len != BLOCKSIZE)
+        {
+          action = TGZ_INVALID; /* force error exit */
+          remaining = 0;        /* force I/O cleanup */
+        }
+
+      /*
+       * If we have to get a tar header
+       */
+      if (getheader >= 1)
+        {
+          /*
+           * if we met the end of the tar
+           * or the end-of-tar block,
+           * we are done
+           */
+          if (len == 0 || buffer.header.name[0] == 0)
+            break;
+
+          tarmode = getoct(buffer.header.mode,8);
+          tartime = (time_t)getoct(buffer.header.mtime,12);
+          if (tarmode == -1 || tartime == (time_t)-1)
+            {
+              buffer.header.name[0] = 0;
+              action = TGZ_INVALID;
+            }
+
+          if (getheader == 1)
+            {
+              strncpy(fname,buffer.header.name,SHORTNAMESIZE);
+              if (fname[SHORTNAMESIZE-1] != 0)
+                  fname[SHORTNAMESIZE] = 0;
+            }
+          else
+            {
+              /*
+               * The file name is longer than SHORTNAMESIZE
+               */
+              if (strncmp(fname,buffer.header.name,SHORTNAMESIZE-1) != 0)
+                  error("bad long name");
+              getheader = 1;
+            }
+
+          /*
+           * Act according to the type flag
+           */
+          switch (buffer.header.typeflag)
+            {
+            case DIRTYPE:
+              if (action == TGZ_LIST)
+                printf(" %s     <dir> %s\n",strtime(&tartime),fname);
+              if (action == TGZ_EXTRACT)
+                {
+                  makedir(fname);
+                  push_attr(&attributes,fname,tarmode,tartime);
+                }
+              break;
+            case REGTYPE:
+            case AREGTYPE:
+              remaining = getoct(buffer.header.size,12);
+              if (remaining == -1)
+                {
+                  action = TGZ_INVALID;
+                  break;
+                }
+              if (action == TGZ_LIST)
+                printf(" %s %9d %s\n",strtime(&tartime),remaining,fname);
+              else if (action == TGZ_EXTRACT)
+                {
+                  if (matchname(arg,argc,argv,fname))
+                    {
+                      outfile = fopen(fname,"wb");
+                      if (outfile == NULL) {
+                        /* try creating directory */
+                        char *p = strrchr(fname, '/');
+                        if (p != NULL) {
+                          *p = '\0';
+                          makedir(fname);
+                          *p = '/';
+                          outfile = fopen(fname,"wb");
+                        }
+                      }
+                      if (outfile != NULL)
+                        printf("Extracting %s\n",fname);
+                      else
+                        fprintf(stderr, "%s: Couldn't create %s",prog,fname);
+                    }
+                  else
+                    outfile = NULL;
+                }
+              getheader = 0;
+              break;
+            case GNUTYPE_LONGLINK:
+            case GNUTYPE_LONGNAME:
+              remaining = getoct(buffer.header.size,12);
+              if (remaining < 0 || remaining >= BLOCKSIZE)
+                {
+                  action = TGZ_INVALID;
+                  break;
+                }
+              len = gzread(in, fname, BLOCKSIZE);
+              if (len < 0)
+                error(gzerror(in, &err));
+              if (fname[BLOCKSIZE-1] != 0 || (int)strlen(fname) > remaining)
+                {
+                  action = TGZ_INVALID;
+                  break;
+                }
+              getheader = 2;
+              break;
+            default:
+              if (action == TGZ_LIST)
+                printf(" %s     <---> %s\n",strtime(&tartime),fname);
+              break;
+            }
+        }
+      else
+        {
+          unsigned int bytes = (remaining > BLOCKSIZE) ? BLOCKSIZE : remaining;
+
+          if (outfile != NULL)
+            {
+              if (fwrite(&buffer,sizeof(char),bytes,outfile) != bytes)
+                {
+                  fprintf(stderr,
+                    "%s: Error writing %s -- skipping\n",prog,fname);
+                  fclose(outfile);
+                  outfile = NULL;
+                  remove(fname);
+                }
+            }
+          remaining -= bytes;
+        }
+
+      if (remaining == 0)
+        {
+          getheader = 1;
+          if (outfile != NULL)
+            {
+              fclose(outfile);
+              outfile = NULL;
+              if (action != TGZ_INVALID)
+                push_attr(&attributes,fname,tarmode,tartime);
+            }
+        }
+
+      /*
+       * Abandon if errors are found
+       */
+      if (action == TGZ_INVALID)
+        {
+          error("broken archive");
+          break;
+        }
+    }
+
+  /*
+   * Restore file modes and time stamps
+   */
+  restore_attr(&attributes);
+
+  if (gzclose(in) != Z_OK)
+    error("failed gzclose");
+
+  return 0;
+}
+
+
+/* ============================================================ */
+
+void help(int exitval)
+{
+  printf("untgz version 0.2.1\n"
+         "  using zlib version %s\n\n",
+         zlibVersion());
+  printf("Usage: untgz file.tgz            extract all files\n"
+         "       untgz file.tgz fname ...  extract selected files\n"
+         "       untgz -l file.tgz         list archive contents\n"
+         "       untgz -h                  display this help\n");
+  exit(exitval);
+}
+
+
+/* ============================================================ */
+
+#if defined(WIN32) && defined(__GNUC__)
+int _CRT_glob = 0;      /* disable argument globbing in MinGW */
+#endif
+
+int main(int argc,char **argv)
+{
+    int         action = TGZ_EXTRACT;
+    int         arg = 1;
+    char        *TGZfile;
+    gzFile      f;
+
+    prog = strrchr(argv[0],'\\');
+    if (prog == NULL)
+      {
+        prog = strrchr(argv[0],'/');
+        if (prog == NULL)
+          {
+            prog = strrchr(argv[0],':');
+            if (prog == NULL)
+              prog = argv[0];
+            else
+              prog++;
+          }
+        else
+          prog++;
+      }
+    else
+      prog++;
+
+    if (argc == 1)
+      help(0);
+
+    if (strcmp(argv[arg],"-l") == 0)
+      {
+        action = TGZ_LIST;
+        if (argc == ++arg)
+          help(0);
+      }
+    else if (strcmp(argv[arg],"-h") == 0)
+      {
+        help(0);
+      }
+
+    if ((TGZfile = TGZfname(argv[arg])) == NULL)
+      TGZnotfound(argv[arg]);
+
+    ++arg;
+    if ((action == TGZ_LIST) && (arg != argc))
+      help(1);
+
+/*
+ *  Process the TGZ file
+ */
+    switch(action)
+      {
+      case TGZ_LIST:
+      case TGZ_EXTRACT:
+        f = gzopen(TGZfile,"rb");
+        if (f == NULL)
+          {
+            fprintf(stderr,"%s: Couldn't gzopen %s\n",prog,TGZfile);
+            return 1;
+          }
+        exit(tar(f, action, arg, argc, argv));
+      break;
+
+      default:
+        error("Unknown option");
+        exit(1);
+      }
+
+    return 0;
+}
diff --git a/compat/zlib/contrib/vstudio/readme.txt b/compat/zlib/contrib/vstudio/readme.txt
new file mode 100644
index 0000000..061bbc0
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/readme.txt
@@ -0,0 +1,81 @@
+Building instructions for the DLL versions of Zlib 1.3.1
+========================================================
+
+This directory contains projects that build zlib and minizip using
+Microsoft Visual C++ 9.0/10.0.
+
+You don't need to build these projects yourself. You can download the
+binaries from:
+  http://www.winimage.com/zLibDll
+
+More information can be found at this site.
+
+
+
+
+
+Build instructions for Visual Studio 2008 (32 bits or 64 bits)
+--------------------------------------------------------------
+- Decompress current zlib, including all contrib/* files
+- Open contrib\vstudio\vc9\zlibvc.sln with Microsoft Visual C++ 2008
+- Or run: vcbuild /rebuild contrib\vstudio\vc9\zlibvc.sln "Release|Win32"
+
+Build instructions for Visual Studio 2010 (32 bits or 64 bits)
+--------------------------------------------------------------
+- Decompress current zlib, including all contrib/* files
+- Open contrib\vstudio\vc10\zlibvc.sln with Microsoft Visual C++ 2010
+
+Build instructions for Visual Studio 2012 (32 bits or 64 bits)
+--------------------------------------------------------------
+- Decompress current zlib, including all contrib/* files
+- Open contrib\vstudio\vc11\zlibvc.sln with Microsoft Visual C++ 2012
+
+Build instructions for Visual Studio 2013 (32 bits or 64 bits)
+--------------------------------------------------------------
+- Decompress current zlib, including all contrib/* files
+- Open contrib\vstudio\vc12\zlibvc.sln with Microsoft Visual C++ 2013
+
+Build instructions for Visual Studio 2015 (32 bits or 64 bits)
+--------------------------------------------------------------
+- Decompress current zlib, including all contrib/* files
+- Open contrib\vstudio\vc14\zlibvc.sln with Microsoft Visual C++ 2015
+
+Build instructions for Visual Studio 2022 (64 bits)
+--------------------------------------------------------------
+- Decompress current zlib, including all contrib/* files
+- Open contrib\vstudio\vc143\zlibvc.sln with Microsoft Visual C++ 2022
+
+
+
+Important
+---------
+- To use zlibwapi.dll in your application, you must define the
+  macro ZLIB_WINAPI when compiling your application's source files.
+
+
+Additional notes
+----------------
+- This DLL, named zlibwapi.dll, is compatible to the old zlib.dll built
+  by Gilles Vollant from the zlib 1.1.x sources, and distributed at
+    http://www.winimage.com/zLibDll
+  It uses the WINAPI calling convention for the exported functions, and
+  includes the minizip functionality. If your application needs that
+  particular build of zlib.dll, you can rename zlibwapi.dll to zlib.dll.
+
+- The new DLL was renamed because there exist several incompatible
+  versions of zlib.dll on the Internet.
+
+- There is also an official DLL build of zlib, named zlib1.dll. This one
+  is exporting the functions using the CDECL convention. See the file
+  win32\DLL_FAQ.txt found in this zlib distribution.
+
+- There used to be a ZLIB_DLL macro in zlib 1.1.x, but now this symbol
+  has a slightly different effect. To avoid compatibility problems, do
+  not define it here.
+
+
+Gilles Vollant
+info@winimage.com
+
+Visual Studio 2013, 2015, and 2022 Projects from Sean Hunt
+seandhunt_7@yahoo.com
diff --git a/compat/zlib/contrib/vstudio/vc10/miniunz.vcxproj b/compat/zlib/contrib/vstudio/vc10/miniunz.vcxproj
new file mode 100644
index 0000000..74e15c9
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc10/miniunz.vcxproj
@@ -0,0 +1,310 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Itanium">
+      <Configuration>Debug</Configuration>
+      <Platform>Itanium</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Itanium">
+      <Configuration>Release</Configuration>
+      <Platform>Itanium</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{C52F9E7B-498A-42BE-8DB4-85A15694382A}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30128.1</_ProjectFileVersion>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">x86\MiniUnzip$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">x86\MiniUnzip$(Configuration)\Tmp\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</LinkIncremental>
+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">false</GenerateManifest>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">x86\MiniUnzip$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">x86\MiniUnzip$(Configuration)\Tmp\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</LinkIncremental>
+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</GenerateManifest>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">x64\MiniUnzip$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">x64\MiniUnzip$(Configuration)\Tmp\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</LinkIncremental>
+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">false</GenerateManifest>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">ia64\MiniUnzip$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">ia64\MiniUnzip$(Configuration)\Tmp\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</LinkIncremental>
+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">false</GenerateManifest>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|x64'">x64\MiniUnzip$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|x64'">x64\MiniUnzip$(Configuration)\Tmp\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|x64'">false</LinkIncremental>
+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Release|x64'">false</GenerateManifest>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">ia64\MiniUnzip$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">ia64\MiniUnzip$(Configuration)\Tmp\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">false</LinkIncremental>
+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">false</GenerateManifest>
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" />
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" />
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|x64'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <Optimization>Disabled</Optimization>
+      <AdditionalIncludeDirectories>..\..\..;..\..\minizip;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MinimalRebuild>true</MinimalRebuild>
+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>x86\ZlibDllDebug\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)miniunz.exe</OutputFile>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <ProgramDatabaseFile>$(OutDir)miniunz.pdb</ProgramDatabaseFile>
+      <SubSystem>Console</SubSystem>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
+      <DataExecutionPrevention>
+      </DataExecutionPrevention>
+      <TargetMachine>MachineX86</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <Optimization>MaxSpeed</Optimization>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <OmitFramePointers>true</OmitFramePointers>
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new file mode 100644
index 0000000..bd18d71
--- /dev/null
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new file mode 100644
index 0000000..0e668f7
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+      <StringPooling>true</StringPooling>
+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <OutputFile>$(OutDir)testzlib.exe</OutputFile>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <OptimizeReferences>true</OptimizeReferences>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <TargetMachine>MachineIA64</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\..\adler32.c" />
+    <ClCompile Include="..\..\..\compress.c" />
+    <ClCompile Include="..\..\..\crc32.c" />
+    <ClCompile Include="..\..\..\deflate.c" />
+    <ClCompile Include="..\..\..\infback.c" />
+    <ClCompile Include="..\..\..\inffast.c" />
+    <ClCompile Include="..\..\..\inflate.c" />
+    <ClCompile Include="..\..\..\inftrees.c" />
+    <ClCompile Include="..\..\testzlib\testzlib.c" />
+    <ClCompile Include="..\..\..\trees.c" />
+    <ClCompile Include="..\..\..\uncompr.c" />
+    <ClCompile Include="..\..\..\zutil.c" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
+\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc10/testzlib.vcxproj.filters b/compat/zlib/contrib/vstudio/vc10/testzlib.vcxproj.filters
new file mode 100644
index 0000000..3cf52ee
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc10/testzlib.vcxproj.filters
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{c1f6a2e3-5da5-4955-8653-310d3efe05a9}</UniqueIdentifier>
+      <Extensions>cpp;c;cxx;def;odl;idl;hpj;bat</Extensions>
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+    <Filter Include="Header Files">
+      <UniqueIdentifier>{c2aaffdc-2c95-4d6f-8466-4bec5890af2c}</UniqueIdentifier>
+      <Extensions>h;hpp;hxx;hm;inl;inc</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{c274fe07-05f2-461c-964b-f6341e4e7eb5}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\..\adler32.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\compress.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\crc32.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\deflate.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\infback.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\inffast.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\inflate.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\inftrees.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\testzlib\testzlib.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\trees.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\uncompr.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\zutil.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
+\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc10/testzlibdll.vcxproj b/compat/zlib/contrib/vstudio/vc10/testzlibdll.vcxproj
new file mode 100644
index 0000000..bcb08ff
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc10/testzlibdll.vcxproj
@@ -0,0 +1,310 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Itanium">
+      <Configuration>Debug</Configuration>
+      <Platform>Itanium</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Itanium">
+      <Configuration>Release</Configuration>
+      <Platform>Itanium</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{C52F9E7B-498A-42BE-8DB4-85A15694366A}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30128.1</_ProjectFileVersion>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">x86\TestZlibDll$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">x86\TestZlibDll$(Configuration)\Tmp\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</LinkIncremental>
+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">false</GenerateManifest>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">x86\TestZlibDll$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">x86\TestZlibDll$(Configuration)\Tmp\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</LinkIncremental>
+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</GenerateManifest>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">x64\TestZlibDll$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">x64\TestZlibDll$(Configuration)\Tmp\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</LinkIncremental>
+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">false</GenerateManifest>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">ia64\TestZlibDll$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">ia64\TestZlibDll$(Configuration)\Tmp\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</LinkIncremental>
+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">false</GenerateManifest>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|x64'">x64\TestZlibDll$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|x64'">x64\TestZlibDll$(Configuration)\Tmp\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|x64'">false</LinkIncremental>
+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Release|x64'">false</GenerateManifest>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">ia64\TestZlibDll$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">ia64\TestZlibDll$(Configuration)\Tmp\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">false</LinkIncremental>
+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">false</GenerateManifest>
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" />
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" />
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|x64'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <Optimization>Disabled</Optimization>
+      <AdditionalIncludeDirectories>..\..\..;..\..\minizip;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MinimalRebuild>true</MinimalRebuild>
+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>x86\ZlibDllDebug\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <ProgramDatabaseFile>$(OutDir)testzlib.pdb</ProgramDatabaseFile>
+      <SubSystem>Console</SubSystem>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
+      <DataExecutionPrevention>
+      </DataExecutionPrevention>
+      <TargetMachine>MachineX86</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <Optimization>MaxSpeed</Optimization>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <OmitFramePointers>true</OmitFramePointers>
+      <AdditionalIncludeDirectories>..\..\..;..\..\minizip;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>x86\ZlibDllRelease\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <OptimizeReferences>true</OptimizeReferences>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
+      <DataExecutionPrevention>
+      </DataExecutionPrevention>
+      <TargetMachine>MachineX86</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Midl>
+      <TargetEnvironment>X64</TargetEnvironment>
+    </Midl>
+    <ClCompile>
+      <Optimization>Disabled</Optimization>
+      <AdditionalIncludeDirectories>..\..\..;..\..\minizip;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MinimalRebuild>true</MinimalRebuild>
+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>x64\ZlibDllDebug\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <ProgramDatabaseFile>$(OutDir)testzlib.pdb</ProgramDatabaseFile>
+      <SubSystem>Console</SubSystem>
+      <TargetMachine>MachineX64</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">
+    <Midl>
+      <TargetEnvironment>Itanium</TargetEnvironment>
+    </Midl>
+    <ClCompile>
+      <Optimization>Disabled</Optimization>
+      <AdditionalIncludeDirectories>..\..\..;..\..\minizip;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MinimalRebuild>true</MinimalRebuild>
+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>ia64\ZlibDllDebug\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <ProgramDatabaseFile>$(OutDir)testzlib.pdb</ProgramDatabaseFile>
+      <SubSystem>Console</SubSystem>
+      <TargetMachine>MachineIA64</TargetMachine>
+    </Link>
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+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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+      <TargetEnvironment>X64</TargetEnvironment>
+    </Midl>
+    <ClCompile>
+      <Optimization>MaxSpeed</Optimization>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <OmitFramePointers>true</OmitFramePointers>
+      <AdditionalIncludeDirectories>..\..\..;..\..\minizip;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>x64\ZlibDllRelease\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <OptimizeReferences>true</OptimizeReferences>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <TargetMachine>MachineX64</TargetMachine>
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+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">
+    <Midl>
+      <TargetEnvironment>Itanium</TargetEnvironment>
+    </Midl>
+    <ClCompile>
+      <Optimization>MaxSpeed</Optimization>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <OmitFramePointers>true</OmitFramePointers>
+      <AdditionalIncludeDirectories>..\..\..;..\..\minizip;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>ia64\ZlibDllRelease\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <OptimizeReferences>true</OptimizeReferences>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <TargetMachine>MachineIA64</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\testzlib\testzlib.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="zlibvc.vcxproj">
+      <Project>{8fd826f8-3739-44e6-8cc8-997122e53b8d}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
+\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc10/testzlibdll.vcxproj.filters b/compat/zlib/contrib/vstudio/vc10/testzlibdll.vcxproj.filters
new file mode 100644
index 0000000..aeb550e
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc10/testzlibdll.vcxproj.filters
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{fa61a89f-93fc-4c89-b29e-36224b7592f4}</UniqueIdentifier>
+      <Extensions>cpp;c;cxx;def;odl;idl;hpj;bat</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{d4b85da0-2ba2-4934-b57f-e2584e3848ee}</UniqueIdentifier>
+      <Extensions>h;hpp;hxx;hm;inl;inc</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{e573e075-00bd-4a7d-bd67-a8cc9bfc5aca}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\testzlib\testzlib.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
+\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc10/zlib.rc b/compat/zlib/contrib/vstudio/vc10/zlib.rc
new file mode 100644
index 0000000..856bd11
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc10/zlib.rc
@@ -0,0 +1,32 @@
+#include <windows.h>
+
+#define IDR_VERSION1  1
+IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
+  FILEVERSION	 1, 3, 1, 0
+  PRODUCTVERSION 1, 3, 1, 0
+  FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK
+  FILEFLAGS	0
+  FILEOS	VOS_DOS_WINDOWS32
+  FILETYPE	VFT_DLL
+  FILESUBTYPE	0	// not used
+BEGIN
+  BLOCK "StringFileInfo"
+  BEGIN
+    BLOCK "040904E4"
+    //language ID = U.S. English, char set = Windows, Multilingual
+
+    BEGIN
+      VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"
+      VALUE "FileVersion",	"1.3.1\0"
+      VALUE "InternalName",	"zlib\0"
+      VALUE "OriginalFilename",	"zlibwapi.dll\0"
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new file mode 100644
index 0000000..c7ed09e
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc10/zlibstat.vcxproj
@@ -0,0 +1,449 @@
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+    <ClCompile Include="..\..\..\uncompr.c" />
+    <ClCompile Include="..\..\minizip\unzip.c" />
+    <ClCompile Include="..\..\minizip\zip.c" />
+    <ClCompile Include="..\..\..\zutil.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="zlib.rc" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="zlibvc.def" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
+\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc10/zlibstat.vcxproj.filters b/compat/zlib/contrib/vstudio/vc10/zlibstat.vcxproj.filters
new file mode 100644
index 0000000..ba7e23d
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc10/zlibstat.vcxproj.filters
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{174213f6-7f66-4ae8-a3a8-a1e0a1e6ffdd}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\..\adler32.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\compress.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\crc32.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\deflate.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\gzclose.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\gzlib.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\gzread.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\gzwrite.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\infback.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\inffast.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\inflate.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\inftrees.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\minizip\ioapi.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\trees.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\uncompr.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\minizip\unzip.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\minizip\zip.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\zutil.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="zlib.rc">
+      <Filter>Source Files</Filter>
+    </ResourceCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="zlibvc.def">
+      <Filter>Source Files</Filter>
+    </None>
+  </ItemGroup>
+</Project>
+\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc10/zlibvc.def b/compat/zlib/contrib/vstudio/vc10/zlibvc.def
new file mode 100644
index 0000000..3234a02
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc10/zlibvc.def
@@ -0,0 +1,158 @@
+LIBRARY
+; zlib data compression and ZIP file I/O library
+
+VERSION		1.3.1
+
+EXPORTS
+        adler32                                  @1
+        compress                                 @2
+        crc32                                    @3
+        deflate                                  @4
+        deflateCopy                              @5
+        deflateEnd                               @6
+        deflateInit2_                            @7
+        deflateInit_                             @8
+        deflateParams                            @9
+        deflateReset                             @10
+        deflateSetDictionary                     @11
+        gzclose                                  @12
+        gzdopen                                  @13
+        gzerror                                  @14
+        gzflush                                  @15
+        gzopen                                   @16
+        gzread                                   @17
+        gzwrite                                  @18
+        inflate                                  @19
+        inflateEnd                               @20
+        inflateInit2_                            @21
+        inflateInit_                             @22
+        inflateReset                             @23
+        inflateSetDictionary                     @24
+        inflateSync                              @25
+        uncompress                               @26
+        zlibVersion                              @27
+        gzprintf                                 @28
+        gzputc                                   @29
+        gzgetc                                   @30
+        gzseek                                   @31
+        gzrewind                                 @32
+        gztell                                   @33
+        gzeof                                    @34
+        gzsetparams                              @35
+        zError                                   @36
+        inflateSyncPoint                         @37
+        get_crc_table                            @38
+        compress2                                @39
+        gzputs                                   @40
+        gzgets                                   @41
+        inflateCopy                              @42
+        inflateBackInit_                         @43
+        inflateBack                              @44
+        inflateBackEnd                           @45
+        compressBound                            @46
+        deflateBound                             @47
+        gzclearerr                               @48
+        gzungetc                                 @49
+        zlibCompileFlags                         @50
+        deflatePrime                             @51
+        deflatePending                           @52
+
+        unzOpen                                  @61
+        unzClose                                 @62
+        unzGetGlobalInfo                         @63
+        unzGetCurrentFileInfo                    @64
+        unzGoToFirstFile                         @65
+        unzGoToNextFile                          @66
+        unzOpenCurrentFile                       @67
+        unzReadCurrentFile                       @68
+        unzOpenCurrentFile3                      @69
+        unztell                                  @70
+        unzeof                                   @71
+        unzCloseCurrentFile                      @72
+        unzGetGlobalComment                      @73
+        unzStringFileNameCompare                 @74
+        unzLocateFile                            @75
+        unzGetLocalExtrafield                    @76
+        unzOpen2                                 @77
+        unzOpenCurrentFile2                      @78
+        unzOpenCurrentFilePassword               @79
+
+        zipOpen                                  @80
+        zipOpenNewFileInZip                      @81
+        zipWriteInFileInZip                      @82
+        zipCloseFileInZip                        @83
+        zipClose                                 @84
+        zipOpenNewFileInZip2                     @86
+        zipCloseFileInZipRaw                     @87
+        zipOpen2                                 @88
+        zipOpenNewFileInZip3                     @89
+
+        unzGetFilePos                            @100
+        unzGoToFilePos                           @101
+
+        fill_win32_filefunc                      @110
+
+; zlibwapi v1.2.4 added:
+        fill_win32_filefunc64                   @111
+        fill_win32_filefunc64A                  @112
+        fill_win32_filefunc64W                  @113
+
+        unzOpen64                               @120
+        unzOpen2_64                             @121
+        unzGetGlobalInfo64                      @122
+        unzGetCurrentFileInfo64                 @124
+        unzGetCurrentFileZStreamPos64           @125
+        unztell64                               @126
+        unzGetFilePos64                         @127
+        unzGoToFilePos64                        @128
+
+        zipOpen64                               @130
+        zipOpen2_64                             @131
+        zipOpenNewFileInZip64                   @132
+        zipOpenNewFileInZip2_64                 @133
+        zipOpenNewFileInZip3_64                 @134
+        zipOpenNewFileInZip4_64                 @135
+        zipCloseFileInZipRaw64                  @136
+
+; zlib1 v1.2.4 added:
+        adler32_combine                         @140
+        crc32_combine                           @142
+        deflateSetHeader                        @144
+        deflateTune                             @145
+        gzbuffer                                @146
+        gzclose_r                               @147
+        gzclose_w                               @148
+        gzdirect                                @149
+        gzoffset                                @150
+        inflateGetHeader                        @156
+        inflateMark                             @157
+        inflatePrime                            @158
+        inflateReset2                           @159
+        inflateUndermine                        @160
+
+; zlib1 v1.2.6 added:
+        gzgetc_                                 @161
+        inflateResetKeep                        @163
+        deflateResetKeep                        @164
+
+; zlib1 v1.2.7 added:
+        gzopen_w                                @165
+
+; zlib1 v1.2.8 added:
+        inflateGetDictionary                    @166
+        gzvprintf                               @167
+
+; zlib1 v1.2.9 added:
+        inflateCodesUsed                        @168
+        inflateValidate                         @169
+        uncompress2                             @170
+        gzfread                                 @171
+        gzfwrite                                @172
+        deflateGetDictionary                    @173
+        adler32_z                               @174
+        crc32_z                                 @175
+
+; zlib1 v1.2.12 added:
+		crc32_combine_gen						@176
+		crc32_combine_gen64						@177
+		crc32_combine_op						@178
diff --git a/compat/zlib/contrib/vstudio/vc10/zlibvc.sln b/compat/zlib/contrib/vstudio/vc10/zlibvc.sln
new file mode 100644
index 0000000..6f6ffd5
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc10/zlibvc.sln
@@ -0,0 +1,135 @@
+
+Microsoft Visual Studio Solution File, Format Version 11.00
+# Visual Studio 2010
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibvc", "zlibvc.vcxproj", "{8FD826F8-3739-44E6-8CC8-997122E53B8D}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibstat", "zlibstat.vcxproj", "{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlib", "testzlib.vcxproj", "{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlibdll", "testzlibdll.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694366A}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "minizip", "minizip.vcxproj", "{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "miniunz", "miniunz.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694382A}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Itanium = Debug|Itanium
+		Debug|Win32 = Debug|Win32
+		Debug|x64 = Debug|x64
+		Release|Itanium = Release|Itanium
+		Release|Win32 = Release|Win32
+		Release|x64 = Release|x64
+		ReleaseWithoutAsm|Itanium = ReleaseWithoutAsm|Itanium
+		ReleaseWithoutAsm|Win32 = ReleaseWithoutAsm|Win32
+		ReleaseWithoutAsm|x64 = ReleaseWithoutAsm|x64
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Itanium.ActiveCfg = Debug|Itanium
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Itanium.Build.0 = Debug|Itanium
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.ActiveCfg = Debug|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.Build.0 = Debug|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.ActiveCfg = Debug|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.Build.0 = Debug|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Itanium.ActiveCfg = Release|Itanium
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Itanium.Build.0 = Release|Itanium
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.ActiveCfg = Release|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.Build.0 = Release|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.ActiveCfg = Release|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.Build.0 = Release|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Itanium
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Itanium.Build.0 = ReleaseWithoutAsm|Itanium
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Itanium.ActiveCfg = Debug|Itanium
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Itanium.Build.0 = Debug|Itanium
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.ActiveCfg = Debug|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.Build.0 = Debug|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.ActiveCfg = Debug|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.Build.0 = Debug|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Itanium.ActiveCfg = Release|Itanium
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Itanium.Build.0 = Release|Itanium
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.ActiveCfg = Release|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.Build.0 = Release|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.ActiveCfg = Release|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.Build.0 = Release|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Itanium
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Itanium.Build.0 = ReleaseWithoutAsm|Itanium
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.ActiveCfg = Debug|Itanium
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.Build.0 = Debug|Itanium
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.ActiveCfg = Debug|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.Build.0 = Debug|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.ActiveCfg = Debug|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.Build.0 = Debug|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.ActiveCfg = Release|Itanium
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.Build.0 = Release|Itanium
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.ActiveCfg = Release|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.Build.0 = Release|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.ActiveCfg = Release|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.Build.0 = Release|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Itanium
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.Build.0 = ReleaseWithoutAsm|Itanium
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Itanium.ActiveCfg = Debug|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Itanium.Build.0 = Debug|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.ActiveCfg = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.Build.0 = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|x64.ActiveCfg = Debug|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|x64.Build.0 = Debug|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Itanium.ActiveCfg = Release|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Itanium.Build.0 = Release|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Win32.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Win32.Build.0 = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|x64.ActiveCfg = Release|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|x64.Build.0 = Release|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Itanium.Build.0 = Release|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.ActiveCfg = Debug|Itanium
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.Build.0 = Debug|Itanium
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.ActiveCfg = Debug|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.Build.0 = Debug|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.ActiveCfg = Debug|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.Build.0 = Debug|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.ActiveCfg = Release|Itanium
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.Build.0 = Release|Itanium
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.ActiveCfg = Release|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.Build.0 = Release|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.ActiveCfg = Release|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.Build.0 = Release|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Itanium
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.Build.0 = Release|Itanium
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Itanium.ActiveCfg = Debug|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Itanium.Build.0 = Debug|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Win32.ActiveCfg = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Win32.Build.0 = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|x64.ActiveCfg = Debug|x64
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new file mode 100644
index 0000000..19dfc35
--- /dev/null
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new file mode 100644
index 0000000..67c444a
--- /dev/null
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new file mode 100644
index 0000000..8f9f20b
--- /dev/null
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new file mode 100644
index 0000000..c93d9e6
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diff --git a/compat/zlib/contrib/vstudio/vc11/testzlib.vcxproj b/compat/zlib/contrib/vstudio/vc11/testzlib.vcxproj
new file mode 100644
index 0000000..c6198c1
--- /dev/null
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@@ -0,0 +1,418 @@
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+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\..\adler32.c" />
+    <ClCompile Include="..\..\..\compress.c" />
+    <ClCompile Include="..\..\..\crc32.c" />
+    <ClCompile Include="..\..\..\deflate.c" />
+    <ClCompile Include="..\..\..\infback.c" />
+    <ClCompile Include="..\..\..\inffast.c" />
+    <ClCompile Include="..\..\..\inflate.c" />
+    <ClCompile Include="..\..\..\inftrees.c" />
+    <ClCompile Include="..\..\testzlib\testzlib.c" />
+    <ClCompile Include="..\..\..\trees.c" />
+    <ClCompile Include="..\..\..\uncompr.c" />
+    <ClCompile Include="..\..\..\zutil.c" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
+\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc11/testzlibdll.vcxproj b/compat/zlib/contrib/vstudio/vc11/testzlibdll.vcxproj
new file mode 100644
index 0000000..9f20c78
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc11/testzlibdll.vcxproj
@@ -0,0 +1,314 @@
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+    <ProjectConfiguration Include="Release|Itanium">
+      <Configuration>Release</Configuration>
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+      <Platform>Win32</Platform>
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+    <ProjectConfiguration Include="Release|x64">
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+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
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+  </ImportGroup>
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+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Release|x64'">false</GenerateManifest>
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+      <StringPooling>true</StringPooling>
+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
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+      <FunctionLevelLinking>true</FunctionLevelLinking>
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+      </PrecompiledHeader>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
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+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
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+    <Link>
+      <AdditionalDependencies>ia64\ZlibDllRelease\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>
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+      <SubSystem>Console</SubSystem>
+      <OptimizeReferences>true</OptimizeReferences>
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+      <TargetMachine>MachineIA64</TargetMachine>
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+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\testzlib\testzlib.c" />
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+\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc11/zlib.rc b/compat/zlib/contrib/vstudio/vc11/zlib.rc
new file mode 100644
index 0000000..856bd11
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc11/zlib.rc
@@ -0,0 +1,32 @@
+#include <windows.h>
+
+#define IDR_VERSION1  1
+IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
+  FILEVERSION	 1, 3, 1, 0
+  PRODUCTVERSION 1, 3, 1, 0
+  FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK
+  FILEFLAGS	0
+  FILEOS	VOS_DOS_WINDOWS32
+  FILETYPE	VFT_DLL
+  FILESUBTYPE	0	// not used
+BEGIN
+  BLOCK "StringFileInfo"
+  BEGIN
+    BLOCK "040904E4"
+    //language ID = U.S. English, char set = Windows, Multilingual
+
+    BEGIN
+      VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"
+      VALUE "FileVersion",	"1.3.1\0"
+      VALUE "InternalName",	"zlib\0"
+      VALUE "OriginalFilename",	"zlibwapi.dll\0"
+      VALUE "ProductName",	"ZLib.DLL\0"
+      VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"
+      VALUE "LegalCopyright", "(C) 1995-2024 Jean-loup Gailly & Mark Adler\0"
+    END
+  END
+  BLOCK "VarFileInfo"
+  BEGIN
+    VALUE "Translation", 0x0409, 1252
+  END
+END
diff --git a/compat/zlib/contrib/vstudio/vc11/zlibstat.vcxproj b/compat/zlib/contrib/vstudio/vc11/zlibstat.vcxproj
new file mode 100644
index 0000000..86fb1c8
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc11/zlibstat.vcxproj
@@ -0,0 +1,456 @@
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+    <ClCompile Include="..\..\..\gzlib.c" />
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+  <ItemGroup>
+    <ResourceCompile Include="zlib.rc" />
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+</Project>
+\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc11/zlibvc.def b/compat/zlib/contrib/vstudio/vc11/zlibvc.def
new file mode 100644
index 0000000..3234a02
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc11/zlibvc.def
@@ -0,0 +1,158 @@
+LIBRARY
+; zlib data compression and ZIP file I/O library
+
+VERSION		1.3.1
+
+EXPORTS
+        adler32                                  @1
+        compress                                 @2
+        crc32                                    @3
+        deflate                                  @4
+        deflateCopy                              @5
+        deflateEnd                               @6
+        deflateInit2_                            @7
+        deflateInit_                             @8
+        deflateParams                            @9
+        deflateReset                             @10
+        deflateSetDictionary                     @11
+        gzclose                                  @12
+        gzdopen                                  @13
+        gzerror                                  @14
+        gzflush                                  @15
+        gzopen                                   @16
+        gzread                                   @17
+        gzwrite                                  @18
+        inflate                                  @19
+        inflateEnd                               @20
+        inflateInit2_                            @21
+        inflateInit_                             @22
+        inflateReset                             @23
+        inflateSetDictionary                     @24
+        inflateSync                              @25
+        uncompress                               @26
+        zlibVersion                              @27
+        gzprintf                                 @28
+        gzputc                                   @29
+        gzgetc                                   @30
+        gzseek                                   @31
+        gzrewind                                 @32
+        gztell                                   @33
+        gzeof                                    @34
+        gzsetparams                              @35
+        zError                                   @36
+        inflateSyncPoint                         @37
+        get_crc_table                            @38
+        compress2                                @39
+        gzputs                                   @40
+        gzgets                                   @41
+        inflateCopy                              @42
+        inflateBackInit_                         @43
+        inflateBack                              @44
+        inflateBackEnd                           @45
+        compressBound                            @46
+        deflateBound                             @47
+        gzclearerr                               @48
+        gzungetc                                 @49
+        zlibCompileFlags                         @50
+        deflatePrime                             @51
+        deflatePending                           @52
+
+        unzOpen                                  @61
+        unzClose                                 @62
+        unzGetGlobalInfo                         @63
+        unzGetCurrentFileInfo                    @64
+        unzGoToFirstFile                         @65
+        unzGoToNextFile                          @66
+        unzOpenCurrentFile                       @67
+        unzReadCurrentFile                       @68
+        unzOpenCurrentFile3                      @69
+        unztell                                  @70
+        unzeof                                   @71
+        unzCloseCurrentFile                      @72
+        unzGetGlobalComment                      @73
+        unzStringFileNameCompare                 @74
+        unzLocateFile                            @75
+        unzGetLocalExtrafield                    @76
+        unzOpen2                                 @77
+        unzOpenCurrentFile2                      @78
+        unzOpenCurrentFilePassword               @79
+
+        zipOpen                                  @80
+        zipOpenNewFileInZip                      @81
+        zipWriteInFileInZip                      @82
+        zipCloseFileInZip                        @83
+        zipClose                                 @84
+        zipOpenNewFileInZip2                     @86
+        zipCloseFileInZipRaw                     @87
+        zipOpen2                                 @88
+        zipOpenNewFileInZip3                     @89
+
+        unzGetFilePos                            @100
+        unzGoToFilePos                           @101
+
+        fill_win32_filefunc                      @110
+
+; zlibwapi v1.2.4 added:
+        fill_win32_filefunc64                   @111
+        fill_win32_filefunc64A                  @112
+        fill_win32_filefunc64W                  @113
+
+        unzOpen64                               @120
+        unzOpen2_64                             @121
+        unzGetGlobalInfo64                      @122
+        unzGetCurrentFileInfo64                 @124
+        unzGetCurrentFileZStreamPos64           @125
+        unztell64                               @126
+        unzGetFilePos64                         @127
+        unzGoToFilePos64                        @128
+
+        zipOpen64                               @130
+        zipOpen2_64                             @131
+        zipOpenNewFileInZip64                   @132
+        zipOpenNewFileInZip2_64                 @133
+        zipOpenNewFileInZip3_64                 @134
+        zipOpenNewFileInZip4_64                 @135
+        zipCloseFileInZipRaw64                  @136
+
+; zlib1 v1.2.4 added:
+        adler32_combine                         @140
+        crc32_combine                           @142
+        deflateSetHeader                        @144
+        deflateTune                             @145
+        gzbuffer                                @146
+        gzclose_r                               @147
+        gzclose_w                               @148
+        gzdirect                                @149
+        gzoffset                                @150
+        inflateGetHeader                        @156
+        inflateMark                             @157
+        inflatePrime                            @158
+        inflateReset2                           @159
+        inflateUndermine                        @160
+
+; zlib1 v1.2.6 added:
+        gzgetc_                                 @161
+        inflateResetKeep                        @163
+        deflateResetKeep                        @164
+
+; zlib1 v1.2.7 added:
+        gzopen_w                                @165
+
+; zlib1 v1.2.8 added:
+        inflateGetDictionary                    @166
+        gzvprintf                               @167
+
+; zlib1 v1.2.9 added:
+        inflateCodesUsed                        @168
+        inflateValidate                         @169
+        uncompress2                             @170
+        gzfread                                 @171
+        gzfwrite                                @172
+        deflateGetDictionary                    @173
+        adler32_z                               @174
+        crc32_z                                 @175
+
+; zlib1 v1.2.12 added:
+		crc32_combine_gen						@176
+		crc32_combine_gen64						@177
+		crc32_combine_op						@178
diff --git a/compat/zlib/contrib/vstudio/vc11/zlibvc.sln b/compat/zlib/contrib/vstudio/vc11/zlibvc.sln
new file mode 100644
index 0000000..9fcbafd
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc11/zlibvc.sln
@@ -0,0 +1,117 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2012
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibvc", "zlibvc.vcxproj", "{8FD826F8-3739-44E6-8CC8-997122E53B8D}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibstat", "zlibstat.vcxproj", "{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlib", "testzlib.vcxproj", "{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlibdll", "testzlibdll.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694366A}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "minizip", "minizip.vcxproj", "{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "miniunz", "miniunz.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694382A}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Itanium = Debug|Itanium
+		Debug|Win32 = Debug|Win32
+		Debug|x64 = Debug|x64
+		Release|Itanium = Release|Itanium
+		Release|Win32 = Release|Win32
+		Release|x64 = Release|x64
+		ReleaseWithoutAsm|Itanium = ReleaseWithoutAsm|Itanium
+		ReleaseWithoutAsm|Win32 = ReleaseWithoutAsm|Win32
+		ReleaseWithoutAsm|x64 = ReleaseWithoutAsm|x64
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Itanium.ActiveCfg = Debug|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.ActiveCfg = Debug|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.Build.0 = Debug|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.ActiveCfg = Debug|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.Build.0 = Debug|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Itanium.ActiveCfg = Release|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.ActiveCfg = Release|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.Build.0 = Release|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.ActiveCfg = Release|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.Build.0 = Release|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Itanium.ActiveCfg = Debug|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.ActiveCfg = Debug|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.Build.0 = Debug|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.ActiveCfg = Debug|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.Build.0 = Debug|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Itanium.ActiveCfg = Release|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.ActiveCfg = Release|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.Build.0 = Release|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.ActiveCfg = Release|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.Build.0 = Release|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.ActiveCfg = Debug|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.ActiveCfg = Debug|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.Build.0 = Debug|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.ActiveCfg = Debug|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.Build.0 = Debug|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.ActiveCfg = Release|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.ActiveCfg = Release|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.Build.0 = Release|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.ActiveCfg = Release|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.Build.0 = Release|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Itanium.ActiveCfg = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.ActiveCfg = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.Build.0 = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|x64.ActiveCfg = Debug|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|x64.Build.0 = Debug|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Itanium.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Win32.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Win32.Build.0 = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|x64.ActiveCfg = Release|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|x64.Build.0 = Release|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.ActiveCfg = Debug|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.ActiveCfg = Debug|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.Build.0 = Debug|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.ActiveCfg = Debug|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.Build.0 = Debug|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.ActiveCfg = Release|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.ActiveCfg = Release|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.Build.0 = Release|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.ActiveCfg = Release|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.Build.0 = Release|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Itanium.ActiveCfg = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Win32.ActiveCfg = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Win32.Build.0 = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|x64.ActiveCfg = Debug|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|x64.Build.0 = Debug|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Itanium.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Win32.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Win32.Build.0 = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|x64.ActiveCfg = Release|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|x64.Build.0 = Release|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal
diff --git a/compat/zlib/contrib/vstudio/vc11/zlibvc.vcxproj b/compat/zlib/contrib/vstudio/vc11/zlibvc.vcxproj
new file mode 100644
index 0000000..fc8cd9c
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc11/zlibvc.vcxproj
@@ -0,0 +1,664 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Itanium">
+      <Configuration>Debug</Configuration>
+      <Platform>Itanium</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="ReleaseWithoutAsm|Itanium">
+      <Configuration>ReleaseWithoutAsm</Configuration>
+      <Platform>Itanium</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="ReleaseWithoutAsm|Win32">
+      <Configuration>ReleaseWithoutAsm</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="ReleaseWithoutAsm|x64">
+      <Configuration>ReleaseWithoutAsm</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Itanium">
+      <Configuration>Release</Configuration>
+      <Platform>Itanium</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{8FD826F8-3739-44E6-8CC8-997122E53B8D}</ProjectGuid>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <PlatformToolset>v110</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <PlatformToolset>v110</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <PlatformToolset>v110</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <PlatformToolset>v110</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|x64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <PlatformToolset>v110</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <PlatformToolset>v110</PlatformToolset>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30128.1</_ProjectFileVersion>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">x86\ZlibDll$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">x86\ZlibDll$(Configuration)\Tmp\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</LinkIncremental>
+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">false</GenerateManifest>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">x86\ZlibDll$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">x86\ZlibDll$(Configuration)\Tmp\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">false</LinkIncremental>
+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">false</GenerateManifest>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">x86\ZlibDll$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">x86\ZlibDll$(Configuration)\Tmp\</IntDir>
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new file mode 100644
index 0000000..d88ac7f
--- /dev/null
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new file mode 100644
index 0000000..f1f239c
--- /dev/null
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diff --git a/compat/zlib/contrib/vstudio/vc12/testzlib.vcxproj b/compat/zlib/contrib/vstudio/vc12/testzlib.vcxproj
new file mode 100644
index 0000000..41303c0
--- /dev/null
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@@ -0,0 +1,422 @@
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new file mode 100644
index 0000000..c66573a
--- /dev/null
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+      </PrecompiledHeader>
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+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MinimalRebuild>true</MinimalRebuild>
+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
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+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
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+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
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+    <Link>
+      <AdditionalDependencies>ia64\ZlibDllRelease\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>
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+      <SubSystem>Console</SubSystem>
+      <OptimizeReferences>true</OptimizeReferences>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <TargetMachine>MachineIA64</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\testzlib\testzlib.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="zlibvc.vcxproj">
+      <Project>{8fd826f8-3739-44e6-8cc8-997122e53b8d}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
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+</Project>
+\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc12/zlib.rc b/compat/zlib/contrib/vstudio/vc12/zlib.rc
new file mode 100644
index 0000000..a55f341
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc12/zlib.rc
@@ -0,0 +1,32 @@
+#include <windows.h>
+
+#define IDR_VERSION1  1
+IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
+  FILEVERSION	 1, 3, 1, 0
+  PRODUCTVERSION 1, 3, 1, 0
+  FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK
+  FILEFLAGS	0
+  FILEOS	VOS_DOS_WINDOWS32
+  FILETYPE	VFT_DLL
+  FILESUBTYPE	0	// not used
+BEGIN
+  BLOCK "StringFileInfo"
+  BEGIN
+    BLOCK "040904E4"
+    //language ID = U.S. English, char set = Windows, Multilingual
+
+    BEGIN
+      VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"
+      VALUE "FileVersion",	"1.3.1\0"
+      VALUE "InternalName",	"zlib\0"
+      VALUE "OriginalFilename",	"zlibwapi.dll\0"
+      VALUE "ProductName",	"ZLib.DLL\0"
+      VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"
+      VALUE "LegalCopyright", "(C) 1995-2024 Jean-loup Gailly & Mark Adler\0"
+    END
+  END
+  BLOCK "VarFileInfo"
+  BEGIN
+    VALUE "Translation", 0x0409, 1252
+  END
+END
diff --git a/compat/zlib/contrib/vstudio/vc12/zlibstat.vcxproj b/compat/zlib/contrib/vstudio/vc12/zlibstat.vcxproj
new file mode 100644
index 0000000..6629d8e
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc12/zlibstat.vcxproj
@@ -0,0 +1,459 @@
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+      <Configuration>ReleaseWithoutAsm</Configuration>
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+      <Platform>Itanium</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
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+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <ObjectFileName>$(IntDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <DebugInformationFormat>OldStyle</DebugInformationFormat>
+    </ClCompile>
+    <ResourceCompile>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Lib>
+      <AdditionalOptions>/MACHINE:AMD64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </Lib>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">
+    <Midl>
+      <TargetEnvironment>Itanium</TargetEnvironment>
+    </Midl>
+    <ClCompile>
+      <Optimization>Disabled</Optimization>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <ObjectFileName>$(IntDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <DebugInformationFormat>OldStyle</DebugInformationFormat>
+    </ClCompile>
+    <ResourceCompile>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Lib>
+      <AdditionalOptions>/MACHINE:IA64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </Lib>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Midl>
+      <TargetEnvironment>X64</TargetEnvironment>
+    </Midl>
+    <ClCompile>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <ObjectFileName>$(IntDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </ClCompile>
+    <ResourceCompile>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Lib>
+      <AdditionalOptions>/MACHINE:AMD64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </Lib>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">
+    <Midl>
+      <TargetEnvironment>Itanium</TargetEnvironment>
+    </Midl>
+    <ClCompile>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <ObjectFileName>$(IntDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </ClCompile>
+    <ResourceCompile>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Lib>
+      <AdditionalOptions>/MACHINE:IA64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </Lib>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|x64'">
+    <Midl>
+      <TargetEnvironment>X64</TargetEnvironment>
+    </Midl>
+    <ClCompile>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <ObjectFileName>$(IntDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </ClCompile>
+    <ResourceCompile>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Lib>
+      <AdditionalOptions>/MACHINE:AMD64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </Lib>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">
+    <Midl>
+      <TargetEnvironment>Itanium</TargetEnvironment>
+    </Midl>
+    <ClCompile>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <ObjectFileName>$(IntDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </ClCompile>
+    <ResourceCompile>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Lib>
+      <AdditionalOptions>/MACHINE:IA64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </Lib>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\..\adler32.c" />
+    <ClCompile Include="..\..\..\compress.c" />
+    <ClCompile Include="..\..\..\crc32.c" />
+    <ClCompile Include="..\..\..\deflate.c" />
+    <ClCompile Include="..\..\..\gzclose.c" />
+    <ClCompile Include="..\..\..\gzlib.c" />
+    <ClCompile Include="..\..\..\gzread.c" />
+    <ClCompile Include="..\..\..\gzwrite.c" />
+    <ClCompile Include="..\..\..\infback.c" />
+    <ClCompile Include="..\..\..\inffast.c" />
+    <ClCompile Include="..\..\..\inflate.c" />
+    <ClCompile Include="..\..\..\inftrees.c" />
+    <ClCompile Include="..\..\minizip\ioapi.c" />
+    <ClCompile Include="..\..\..\trees.c" />
+    <ClCompile Include="..\..\..\uncompr.c" />
+    <ClCompile Include="..\..\minizip\unzip.c" />
+    <ClCompile Include="..\..\minizip\zip.c" />
+    <ClCompile Include="..\..\..\zutil.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="zlib.rc" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="zlibvc.def" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
+\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc12/zlibvc.def b/compat/zlib/contrib/vstudio/vc12/zlibvc.def
new file mode 100644
index 0000000..3234a02
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc12/zlibvc.def
@@ -0,0 +1,158 @@
+LIBRARY
+; zlib data compression and ZIP file I/O library
+
+VERSION		1.3.1
+
+EXPORTS
+        adler32                                  @1
+        compress                                 @2
+        crc32                                    @3
+        deflate                                  @4
+        deflateCopy                              @5
+        deflateEnd                               @6
+        deflateInit2_                            @7
+        deflateInit_                             @8
+        deflateParams                            @9
+        deflateReset                             @10
+        deflateSetDictionary                     @11
+        gzclose                                  @12
+        gzdopen                                  @13
+        gzerror                                  @14
+        gzflush                                  @15
+        gzopen                                   @16
+        gzread                                   @17
+        gzwrite                                  @18
+        inflate                                  @19
+        inflateEnd                               @20
+        inflateInit2_                            @21
+        inflateInit_                             @22
+        inflateReset                             @23
+        inflateSetDictionary                     @24
+        inflateSync                              @25
+        uncompress                               @26
+        zlibVersion                              @27
+        gzprintf                                 @28
+        gzputc                                   @29
+        gzgetc                                   @30
+        gzseek                                   @31
+        gzrewind                                 @32
+        gztell                                   @33
+        gzeof                                    @34
+        gzsetparams                              @35
+        zError                                   @36
+        inflateSyncPoint                         @37
+        get_crc_table                            @38
+        compress2                                @39
+        gzputs                                   @40
+        gzgets                                   @41
+        inflateCopy                              @42
+        inflateBackInit_                         @43
+        inflateBack                              @44
+        inflateBackEnd                           @45
+        compressBound                            @46
+        deflateBound                             @47
+        gzclearerr                               @48
+        gzungetc                                 @49
+        zlibCompileFlags                         @50
+        deflatePrime                             @51
+        deflatePending                           @52
+
+        unzOpen                                  @61
+        unzClose                                 @62
+        unzGetGlobalInfo                         @63
+        unzGetCurrentFileInfo                    @64
+        unzGoToFirstFile                         @65
+        unzGoToNextFile                          @66
+        unzOpenCurrentFile                       @67
+        unzReadCurrentFile                       @68
+        unzOpenCurrentFile3                      @69
+        unztell                                  @70
+        unzeof                                   @71
+        unzCloseCurrentFile                      @72
+        unzGetGlobalComment                      @73
+        unzStringFileNameCompare                 @74
+        unzLocateFile                            @75
+        unzGetLocalExtrafield                    @76
+        unzOpen2                                 @77
+        unzOpenCurrentFile2                      @78
+        unzOpenCurrentFilePassword               @79
+
+        zipOpen                                  @80
+        zipOpenNewFileInZip                      @81
+        zipWriteInFileInZip                      @82
+        zipCloseFileInZip                        @83
+        zipClose                                 @84
+        zipOpenNewFileInZip2                     @86
+        zipCloseFileInZipRaw                     @87
+        zipOpen2                                 @88
+        zipOpenNewFileInZip3                     @89
+
+        unzGetFilePos                            @100
+        unzGoToFilePos                           @101
+
+        fill_win32_filefunc                      @110
+
+; zlibwapi v1.2.4 added:
+        fill_win32_filefunc64                   @111
+        fill_win32_filefunc64A                  @112
+        fill_win32_filefunc64W                  @113
+
+        unzOpen64                               @120
+        unzOpen2_64                             @121
+        unzGetGlobalInfo64                      @122
+        unzGetCurrentFileInfo64                 @124
+        unzGetCurrentFileZStreamPos64           @125
+        unztell64                               @126
+        unzGetFilePos64                         @127
+        unzGoToFilePos64                        @128
+
+        zipOpen64                               @130
+        zipOpen2_64                             @131
+        zipOpenNewFileInZip64                   @132
+        zipOpenNewFileInZip2_64                 @133
+        zipOpenNewFileInZip3_64                 @134
+        zipOpenNewFileInZip4_64                 @135
+        zipCloseFileInZipRaw64                  @136
+
+; zlib1 v1.2.4 added:
+        adler32_combine                         @140
+        crc32_combine                           @142
+        deflateSetHeader                        @144
+        deflateTune                             @145
+        gzbuffer                                @146
+        gzclose_r                               @147
+        gzclose_w                               @148
+        gzdirect                                @149
+        gzoffset                                @150
+        inflateGetHeader                        @156
+        inflateMark                             @157
+        inflatePrime                            @158
+        inflateReset2                           @159
+        inflateUndermine                        @160
+
+; zlib1 v1.2.6 added:
+        gzgetc_                                 @161
+        inflateResetKeep                        @163
+        deflateResetKeep                        @164
+
+; zlib1 v1.2.7 added:
+        gzopen_w                                @165
+
+; zlib1 v1.2.8 added:
+        inflateGetDictionary                    @166
+        gzvprintf                               @167
+
+; zlib1 v1.2.9 added:
+        inflateCodesUsed                        @168
+        inflateValidate                         @169
+        uncompress2                             @170
+        gzfread                                 @171
+        gzfwrite                                @172
+        deflateGetDictionary                    @173
+        adler32_z                               @174
+        crc32_z                                 @175
+
+; zlib1 v1.2.12 added:
+		crc32_combine_gen						@176
+		crc32_combine_gen64						@177
+		crc32_combine_op						@178
diff --git a/compat/zlib/contrib/vstudio/vc12/zlibvc.sln b/compat/zlib/contrib/vstudio/vc12/zlibvc.sln
new file mode 100644
index 0000000..dcda229
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc12/zlibvc.sln
@@ -0,0 +1,119 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2013
+VisualStudioVersion = 12.0.40629.0
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibvc", "zlibvc.vcxproj", "{8FD826F8-3739-44E6-8CC8-997122E53B8D}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibstat", "zlibstat.vcxproj", "{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlib", "testzlib.vcxproj", "{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlibdll", "testzlibdll.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694366A}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "minizip", "minizip.vcxproj", "{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "miniunz", "miniunz.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694382A}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Itanium = Debug|Itanium
+		Debug|Win32 = Debug|Win32
+		Debug|x64 = Debug|x64
+		Release|Itanium = Release|Itanium
+		Release|Win32 = Release|Win32
+		Release|x64 = Release|x64
+		ReleaseWithoutAsm|Itanium = ReleaseWithoutAsm|Itanium
+		ReleaseWithoutAsm|Win32 = ReleaseWithoutAsm|Win32
+		ReleaseWithoutAsm|x64 = ReleaseWithoutAsm|x64
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Itanium.ActiveCfg = Debug|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.ActiveCfg = Debug|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.Build.0 = Debug|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.ActiveCfg = Debug|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.Build.0 = Debug|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Itanium.ActiveCfg = Release|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.ActiveCfg = Release|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.Build.0 = Release|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.ActiveCfg = Release|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.Build.0 = Release|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Itanium.ActiveCfg = Debug|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.ActiveCfg = Debug|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.Build.0 = Debug|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.ActiveCfg = Debug|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.Build.0 = Debug|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Itanium.ActiveCfg = Release|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.ActiveCfg = Release|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.Build.0 = Release|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.ActiveCfg = Release|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.Build.0 = Release|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.ActiveCfg = Debug|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.ActiveCfg = Debug|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.Build.0 = Debug|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.ActiveCfg = Debug|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.Build.0 = Debug|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.ActiveCfg = Release|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.ActiveCfg = Release|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.Build.0 = Release|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.ActiveCfg = Release|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.Build.0 = Release|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Itanium.ActiveCfg = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.ActiveCfg = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.Build.0 = Debug|Win32
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diff --git a/compat/zlib/contrib/vstudio/vc12/zlibvc.vcxproj b/compat/zlib/contrib/vstudio/vc12/zlibvc.vcxproj
new file mode 100644
index 0000000..4e0de69
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc12/zlibvc.vcxproj
@@ -0,0 +1,668 @@
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diff --git a/compat/zlib/contrib/vstudio/vc14/miniunz.vcxproj b/compat/zlib/contrib/vstudio/vc14/miniunz.vcxproj
new file mode 100644
index 0000000..9b5c075
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc14/miniunz.vcxproj
@@ -0,0 +1,316 @@
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new file mode 100644
index 0000000..968a410
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diff --git a/compat/zlib/contrib/vstudio/vc14/testzlib.vcxproj b/compat/zlib/contrib/vstudio/vc14/testzlib.vcxproj
new file mode 100644
index 0000000..5452049
--- /dev/null
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@@ -0,0 +1,422 @@
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+    <ClCompile Include="..\..\..\compress.c" />
+    <ClCompile Include="..\..\..\crc32.c" />
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+    <ClCompile Include="..\..\..\infback.c" />
+    <ClCompile Include="..\..\..\inffast.c" />
+    <ClCompile Include="..\..\..\inflate.c" />
+    <ClCompile Include="..\..\..\inftrees.c" />
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+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
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+</Project>
+\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc14/testzlibdll.vcxproj b/compat/zlib/contrib/vstudio/vc14/testzlibdll.vcxproj
new file mode 100644
index 0000000..d87474d
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc14/testzlibdll.vcxproj
@@ -0,0 +1,316 @@
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+    <ProjectConfiguration Include="Release|Win32">
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+    <ProjectConfiguration Include="Release|x64">
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+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>
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+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
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+    <Link>
+      <AdditionalDependencies>ia64\ZlibDllRelease\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>
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+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\testzlib\testzlib.c" />
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+\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc14/zlib.rc b/compat/zlib/contrib/vstudio/vc14/zlib.rc
new file mode 100644
index 0000000..a55f341
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc14/zlib.rc
@@ -0,0 +1,32 @@
+#include <windows.h>
+
+#define IDR_VERSION1  1
+IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
+  FILEVERSION	 1, 3, 1, 0
+  PRODUCTVERSION 1, 3, 1, 0
+  FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK
+  FILEFLAGS	0
+  FILEOS	VOS_DOS_WINDOWS32
+  FILETYPE	VFT_DLL
+  FILESUBTYPE	0	// not used
+BEGIN
+  BLOCK "StringFileInfo"
+  BEGIN
+    BLOCK "040904E4"
+    //language ID = U.S. English, char set = Windows, Multilingual
+
+    BEGIN
+      VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"
+      VALUE "FileVersion",	"1.3.1\0"
+      VALUE "InternalName",	"zlib\0"
+      VALUE "OriginalFilename",	"zlibwapi.dll\0"
+      VALUE "ProductName",	"ZLib.DLL\0"
+      VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"
+      VALUE "LegalCopyright", "(C) 1995-2024 Jean-loup Gailly & Mark Adler\0"
+    END
+  END
+  BLOCK "VarFileInfo"
+  BEGIN
+    VALUE "Translation", 0x0409, 1252
+  END
+END
diff --git a/compat/zlib/contrib/vstudio/vc14/zlibstat.vcxproj b/compat/zlib/contrib/vstudio/vc14/zlibstat.vcxproj
new file mode 100644
index 0000000..85c1e89
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc14/zlibstat.vcxproj
@@ -0,0 +1,459 @@
+<?xml version="1.0" encoding="utf-8"?>
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+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Itanium">
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+    <ConfigurationType>StaticLibrary</ConfigurationType>
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+\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc14/zlibvc.def b/compat/zlib/contrib/vstudio/vc14/zlibvc.def
new file mode 100644
index 0000000..3234a02
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc14/zlibvc.def
@@ -0,0 +1,158 @@
+LIBRARY
+; zlib data compression and ZIP file I/O library
+
+VERSION		1.3.1
+
+EXPORTS
+        adler32                                  @1
+        compress                                 @2
+        crc32                                    @3
+        deflate                                  @4
+        deflateCopy                              @5
+        deflateEnd                               @6
+        deflateInit2_                            @7
+        deflateInit_                             @8
+        deflateParams                            @9
+        deflateReset                             @10
+        deflateSetDictionary                     @11
+        gzclose                                  @12
+        gzdopen                                  @13
+        gzerror                                  @14
+        gzflush                                  @15
+        gzopen                                   @16
+        gzread                                   @17
+        gzwrite                                  @18
+        inflate                                  @19
+        inflateEnd                               @20
+        inflateInit2_                            @21
+        inflateInit_                             @22
+        inflateReset                             @23
+        inflateSetDictionary                     @24
+        inflateSync                              @25
+        uncompress                               @26
+        zlibVersion                              @27
+        gzprintf                                 @28
+        gzputc                                   @29
+        gzgetc                                   @30
+        gzseek                                   @31
+        gzrewind                                 @32
+        gztell                                   @33
+        gzeof                                    @34
+        gzsetparams                              @35
+        zError                                   @36
+        inflateSyncPoint                         @37
+        get_crc_table                            @38
+        compress2                                @39
+        gzputs                                   @40
+        gzgets                                   @41
+        inflateCopy                              @42
+        inflateBackInit_                         @43
+        inflateBack                              @44
+        inflateBackEnd                           @45
+        compressBound                            @46
+        deflateBound                             @47
+        gzclearerr                               @48
+        gzungetc                                 @49
+        zlibCompileFlags                         @50
+        deflatePrime                             @51
+        deflatePending                           @52
+
+        unzOpen                                  @61
+        unzClose                                 @62
+        unzGetGlobalInfo                         @63
+        unzGetCurrentFileInfo                    @64
+        unzGoToFirstFile                         @65
+        unzGoToNextFile                          @66
+        unzOpenCurrentFile                       @67
+        unzReadCurrentFile                       @68
+        unzOpenCurrentFile3                      @69
+        unztell                                  @70
+        unzeof                                   @71
+        unzCloseCurrentFile                      @72
+        unzGetGlobalComment                      @73
+        unzStringFileNameCompare                 @74
+        unzLocateFile                            @75
+        unzGetLocalExtrafield                    @76
+        unzOpen2                                 @77
+        unzOpenCurrentFile2                      @78
+        unzOpenCurrentFilePassword               @79
+
+        zipOpen                                  @80
+        zipOpenNewFileInZip                      @81
+        zipWriteInFileInZip                      @82
+        zipCloseFileInZip                        @83
+        zipClose                                 @84
+        zipOpenNewFileInZip2                     @86
+        zipCloseFileInZipRaw                     @87
+        zipOpen2                                 @88
+        zipOpenNewFileInZip3                     @89
+
+        unzGetFilePos                            @100
+        unzGoToFilePos                           @101
+
+        fill_win32_filefunc                      @110
+
+; zlibwapi v1.2.4 added:
+        fill_win32_filefunc64                   @111
+        fill_win32_filefunc64A                  @112
+        fill_win32_filefunc64W                  @113
+
+        unzOpen64                               @120
+        unzOpen2_64                             @121
+        unzGetGlobalInfo64                      @122
+        unzGetCurrentFileInfo64                 @124
+        unzGetCurrentFileZStreamPos64           @125
+        unztell64                               @126
+        unzGetFilePos64                         @127
+        unzGoToFilePos64                        @128
+
+        zipOpen64                               @130
+        zipOpen2_64                             @131
+        zipOpenNewFileInZip64                   @132
+        zipOpenNewFileInZip2_64                 @133
+        zipOpenNewFileInZip3_64                 @134
+        zipOpenNewFileInZip4_64                 @135
+        zipCloseFileInZipRaw64                  @136
+
+; zlib1 v1.2.4 added:
+        adler32_combine                         @140
+        crc32_combine                           @142
+        deflateSetHeader                        @144
+        deflateTune                             @145
+        gzbuffer                                @146
+        gzclose_r                               @147
+        gzclose_w                               @148
+        gzdirect                                @149
+        gzoffset                                @150
+        inflateGetHeader                        @156
+        inflateMark                             @157
+        inflatePrime                            @158
+        inflateReset2                           @159
+        inflateUndermine                        @160
+
+; zlib1 v1.2.6 added:
+        gzgetc_                                 @161
+        inflateResetKeep                        @163
+        deflateResetKeep                        @164
+
+; zlib1 v1.2.7 added:
+        gzopen_w                                @165
+
+; zlib1 v1.2.8 added:
+        inflateGetDictionary                    @166
+        gzvprintf                               @167
+
+; zlib1 v1.2.9 added:
+        inflateCodesUsed                        @168
+        inflateValidate                         @169
+        uncompress2                             @170
+        gzfread                                 @171
+        gzfwrite                                @172
+        deflateGetDictionary                    @173
+        adler32_z                               @174
+        crc32_z                                 @175
+
+; zlib1 v1.2.12 added:
+		crc32_combine_gen						@176
+		crc32_combine_gen64						@177
+		crc32_combine_op						@178
diff --git a/compat/zlib/contrib/vstudio/vc14/zlibvc.sln b/compat/zlib/contrib/vstudio/vc14/zlibvc.sln
new file mode 100644
index 0000000..6f4a107
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc14/zlibvc.sln
@@ -0,0 +1,119 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 14
+VisualStudioVersion = 14.0.25420.1
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibvc", "zlibvc.vcxproj", "{8FD826F8-3739-44E6-8CC8-997122E53B8D}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibstat", "zlibstat.vcxproj", "{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlib", "testzlib.vcxproj", "{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlibdll", "testzlibdll.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694366A}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "minizip", "minizip.vcxproj", "{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "miniunz", "miniunz.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694382A}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Itanium = Debug|Itanium
+		Debug|Win32 = Debug|Win32
+		Debug|x64 = Debug|x64
+		Release|Itanium = Release|Itanium
+		Release|Win32 = Release|Win32
+		Release|x64 = Release|x64
+		ReleaseWithoutAsm|Itanium = ReleaseWithoutAsm|Itanium
+		ReleaseWithoutAsm|Win32 = ReleaseWithoutAsm|Win32
+		ReleaseWithoutAsm|x64 = ReleaseWithoutAsm|x64
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Itanium.ActiveCfg = Debug|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.ActiveCfg = Debug|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.Build.0 = Debug|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.ActiveCfg = Debug|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.Build.0 = Debug|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Itanium.ActiveCfg = Release|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.ActiveCfg = Release|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.Build.0 = Release|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.ActiveCfg = Release|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.Build.0 = Release|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Itanium.ActiveCfg = Debug|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.ActiveCfg = Debug|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.Build.0 = Debug|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.ActiveCfg = Debug|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.Build.0 = Debug|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Itanium.ActiveCfg = Release|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.ActiveCfg = Release|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.Build.0 = Release|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.ActiveCfg = Release|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.Build.0 = Release|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.ActiveCfg = Debug|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.ActiveCfg = Debug|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.Build.0 = Debug|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.ActiveCfg = Debug|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.Build.0 = Debug|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.ActiveCfg = Release|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.ActiveCfg = Release|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.Build.0 = Release|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.ActiveCfg = Release|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.Build.0 = Release|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Itanium.ActiveCfg = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.ActiveCfg = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.Build.0 = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|x64.ActiveCfg = Debug|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|x64.Build.0 = Debug|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Itanium.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Win32.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Win32.Build.0 = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|x64.ActiveCfg = Release|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|x64.Build.0 = Release|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.ActiveCfg = Debug|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.ActiveCfg = Debug|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.Build.0 = Debug|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.ActiveCfg = Debug|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.Build.0 = Debug|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.ActiveCfg = Release|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.ActiveCfg = Release|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.Build.0 = Release|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.ActiveCfg = Release|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.Build.0 = Release|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Itanium.ActiveCfg = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Win32.ActiveCfg = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Win32.Build.0 = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|x64.ActiveCfg = Debug|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|x64.Build.0 = Debug|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Itanium.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Win32.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Win32.Build.0 = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|x64.ActiveCfg = Release|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|x64.Build.0 = Release|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal
diff --git a/compat/zlib/contrib/vstudio/vc14/zlibvc.vcxproj b/compat/zlib/contrib/vstudio/vc14/zlibvc.vcxproj
new file mode 100644
index 0000000..424ff55
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc14/zlibvc.vcxproj
@@ -0,0 +1,668 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Itanium">
+      <Configuration>Debug</Configuration>
+      <Platform>Itanium</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="ReleaseWithoutAsm|Itanium">
+      <Configuration>ReleaseWithoutAsm</Configuration>
+      <Platform>Itanium</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="ReleaseWithoutAsm|Win32">
+      <Configuration>ReleaseWithoutAsm</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="ReleaseWithoutAsm|x64">
+      <Configuration>ReleaseWithoutAsm</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Itanium">
+      <Configuration>Release</Configuration>
+      <Platform>Itanium</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{8FD826F8-3739-44E6-8CC8-997122E53B8D}</ProjectGuid>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <PlatformToolset>v140</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <PlatformToolset>v140</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <PlatformToolset>v140</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <PlatformToolset>v140</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <PlatformToolset>v140</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <PlatformToolset>v140</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <PlatformToolset>v140</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|x64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <PlatformToolset>v140</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <PlatformToolset>v140</PlatformToolset>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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diff --git a/compat/zlib/contrib/vstudio/vc17/miniunz.vcxproj b/compat/zlib/contrib/vstudio/vc17/miniunz.vcxproj
new file mode 100644
index 0000000..68ef165
--- /dev/null
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@@ -0,0 +1,409 @@
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diff --git a/compat/zlib/contrib/vstudio/vc17/minizip.vcxproj b/compat/zlib/contrib/vstudio/vc17/minizip.vcxproj
new file mode 100644
index 0000000..dd3c52e
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diff --git a/compat/zlib/contrib/vstudio/vc17/testzlib.vcxproj b/compat/zlib/contrib/vstudio/vc17/testzlib.vcxproj
new file mode 100644
index 0000000..4cc99b3
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc17/testzlib.vcxproj
@@ -0,0 +1,473 @@
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diff --git a/compat/zlib/contrib/vstudio/vc17/testzlibdll.vcxproj b/compat/zlib/contrib/vstudio/vc17/testzlibdll.vcxproj
new file mode 100644
index 0000000..73bba55
--- /dev/null
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@@ -0,0 +1,409 @@
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+      <AdditionalDependencies>x64\ZlibDllRelease\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <OptimizeReferences>true</OptimizeReferences>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">
+    <Midl />
+    <ClCompile>
+      <Optimization>MaxSpeed</Optimization>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <OmitFramePointers>true</OmitFramePointers>
+      <AdditionalIncludeDirectories>..\..\..;..\..\minizip;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>x64\ZlibDllRelease\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <OptimizeReferences>true</OptimizeReferences>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\testzlib\testzlib.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="zlibvc.vcxproj">
+      <Project>{8fd826f8-3739-44e6-8cc8-997122e53b8d}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
+\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc17/zlib.rc b/compat/zlib/contrib/vstudio/vc17/zlib.rc
new file mode 100644
index 0000000..a55f341
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc17/zlib.rc
@@ -0,0 +1,32 @@
+#include <windows.h>
+
+#define IDR_VERSION1  1
+IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
+  FILEVERSION	 1, 3, 1, 0
+  PRODUCTVERSION 1, 3, 1, 0
+  FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK
+  FILEFLAGS	0
+  FILEOS	VOS_DOS_WINDOWS32
+  FILETYPE	VFT_DLL
+  FILESUBTYPE	0	// not used
+BEGIN
+  BLOCK "StringFileInfo"
+  BEGIN
+    BLOCK "040904E4"
+    //language ID = U.S. English, char set = Windows, Multilingual
+
+    BEGIN
+      VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"
+      VALUE "FileVersion",	"1.3.1\0"
+      VALUE "InternalName",	"zlib\0"
+      VALUE "OriginalFilename",	"zlibwapi.dll\0"
+      VALUE "ProductName",	"ZLib.DLL\0"
+      VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"
+      VALUE "LegalCopyright", "(C) 1995-2024 Jean-loup Gailly & Mark Adler\0"
+    END
+  END
+  BLOCK "VarFileInfo"
+  BEGIN
+    VALUE "Translation", 0x0409, 1252
+  END
+END
diff --git a/compat/zlib/contrib/vstudio/vc17/zlibstat.vcxproj b/compat/zlib/contrib/vstudio/vc17/zlibstat.vcxproj
new file mode 100644
index 0000000..b946ac2
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc17/zlibstat.vcxproj
@@ -0,0 +1,602 @@
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+<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|ARM64">
+      <Configuration>Debug</Configuration>
+      <Platform>ARM64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="ReleaseWithoutAsm|ARM">
+      <Configuration>ReleaseWithoutAsm</Configuration>
+      <Platform>ARM</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="ReleaseWithoutAsm|ARM64">
+      <Configuration>ReleaseWithoutAsm</Configuration>
+      <Platform>ARM64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="ReleaseWithoutAsm|Win32">
+      <Configuration>ReleaseWithoutAsm</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="ReleaseWithoutAsm|x64">
+      <Configuration>ReleaseWithoutAsm</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|ARM">
+      <Configuration>Release</Configuration>
+      <Platform>ARM</Platform>
+    </ProjectConfiguration>
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+      <Platform>ARM64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
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+      <Platform>x64</Platform>
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+  <PropertyGroup Label="Globals">
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+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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+    <UseOfMfc>false</UseOfMfc>
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+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>StaticLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
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+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
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+    <CharacterSet>Unicode</CharacterSet>
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+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>StaticLibrary</ConfigurationType>
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+    <ConfigurationType>StaticLibrary</ConfigurationType>
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+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'" Label="Configuration">
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+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
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+      <DebugInformationFormat>OldStyle</DebugInformationFormat>
+    </ClCompile>
+    <ResourceCompile>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Lib>
+      <AdditionalOptions>/MACHINE:ARM64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </Lib>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'">
+    <Midl />
+    <ClCompile>
+      <Optimization>Disabled</Optimization>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <ObjectFileName>$(IntDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <DebugInformationFormat>OldStyle</DebugInformationFormat>
+    </ClCompile>
+    <ResourceCompile>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Lib>
+      <AdditionalOptions>/MACHINE:ARM /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </Lib>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Midl>
+      <TargetEnvironment>X64</TargetEnvironment>
+    </Midl>
+    <ClCompile>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <ObjectFileName>$(IntDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </ClCompile>
+    <ResourceCompile>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Lib>
+      <AdditionalOptions>/MACHINE:AMD64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </Lib>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">
+    <Midl />
+    <ClCompile>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <ObjectFileName>$(IntDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </ClCompile>
+    <ResourceCompile>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Lib>
+      <AdditionalOptions>/MACHINE:ARM64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </Lib>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">
+    <Midl />
+    <ClCompile>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <ObjectFileName>$(IntDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </ClCompile>
+    <ResourceCompile>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Lib>
+      <AdditionalOptions>/MACHINE:ARM /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </Lib>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|x64'">
+    <Midl>
+      <TargetEnvironment>X64</TargetEnvironment>
+    </Midl>
+    <ClCompile>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <ObjectFileName>$(IntDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </ClCompile>
+    <ResourceCompile>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Lib>
+      <AdditionalOptions>/MACHINE:AMD64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </Lib>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|ARM64'">
+    <Midl />
+    <ClCompile>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <ObjectFileName>$(IntDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </ClCompile>
+    <ResourceCompile>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Lib>
+      <AdditionalOptions>/MACHINE:ARM64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </Lib>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|ARM'">
+    <Midl />
+    <ClCompile>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <ObjectFileName>$(IntDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </ClCompile>
+    <ResourceCompile>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Lib>
+      <AdditionalOptions>/MACHINE:ARM /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </Lib>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\..\adler32.c" />
+    <ClCompile Include="..\..\..\compress.c" />
+    <ClCompile Include="..\..\..\crc32.c" />
+    <ClCompile Include="..\..\..\deflate.c" />
+    <ClCompile Include="..\..\..\gzclose.c" />
+    <ClCompile Include="..\..\..\gzlib.c" />
+    <ClCompile Include="..\..\..\gzread.c" />
+    <ClCompile Include="..\..\..\gzwrite.c" />
+    <ClCompile Include="..\..\..\infback.c" />
+    <ClCompile Include="..\..\..\inffast.c" />
+    <ClCompile Include="..\..\..\inflate.c" />
+    <ClCompile Include="..\..\..\inftrees.c" />
+    <ClCompile Include="..\..\minizip\ioapi.c" />
+    <ClCompile Include="..\..\..\trees.c" />
+    <ClCompile Include="..\..\..\uncompr.c" />
+    <ClCompile Include="..\..\minizip\unzip.c" />
+    <ClCompile Include="..\..\minizip\zip.c" />
+    <ClCompile Include="..\..\..\zutil.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="zlib.rc" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="zlibvc.def" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
+\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc17/zlibvc.def b/compat/zlib/contrib/vstudio/vc17/zlibvc.def
new file mode 100644
index 0000000..53947cc
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc17/zlibvc.def
@@ -0,0 +1,158 @@
+LIBRARY
+; zlib data compression and ZIP file I/O library
+
+VERSION		1.3.1
+
+EXPORTS
+        adler32                                  @1
+        compress                                 @2
+        crc32                                    @3
+        deflate                                  @4
+        deflateCopy                              @5
+        deflateEnd                               @6
+        deflateInit2_                            @7
+        deflateInit_                             @8
+        deflateParams                            @9
+        deflateReset                             @10
+        deflateSetDictionary                     @11
+        gzclose                                  @12
+        gzdopen                                  @13
+        gzerror                                  @14
+        gzflush                                  @15
+        gzopen                                   @16
+        gzread                                   @17
+        gzwrite                                  @18
+        inflate                                  @19
+        inflateEnd                               @20
+        inflateInit2_                            @21
+        inflateInit_                             @22
+        inflateReset                             @23
+        inflateSetDictionary                     @24
+        inflateSync                              @25
+        uncompress                               @26
+        zlibVersion                              @27
+        gzprintf                                 @28
+        gzputc                                   @29
+        gzgetc                                   @30
+        gzseek                                   @31
+        gzrewind                                 @32
+        gztell                                   @33
+        gzeof                                    @34
+        gzsetparams                              @35
+        zError                                   @36
+        inflateSyncPoint                         @37
+        get_crc_table                            @38
+        compress2                                @39
+        gzputs                                   @40
+        gzgets                                   @41
+        inflateCopy                              @42
+        inflateBackInit_                         @43
+        inflateBack                              @44
+        inflateBackEnd                           @45
+        compressBound                            @46
+        deflateBound                             @47
+        gzclearerr                               @48
+        gzungetc                                 @49
+        zlibCompileFlags                         @50
+        deflatePrime                             @51
+        deflatePending                           @52
+
+        unzOpen                                  @61
+        unzClose                                 @62
+        unzGetGlobalInfo                         @63
+        unzGetCurrentFileInfo                    @64
+        unzGoToFirstFile                         @65
+        unzGoToNextFile                          @66
+        unzOpenCurrentFile                       @67
+        unzReadCurrentFile                       @68
+        unzOpenCurrentFile3                      @69
+        unztell                                  @70
+        unzeof                                   @71
+        unzCloseCurrentFile                      @72
+        unzGetGlobalComment                      @73
+        unzStringFileNameCompare                 @74
+        unzLocateFile                            @75
+        unzGetLocalExtrafield                    @76
+        unzOpen2                                 @77
+        unzOpenCurrentFile2                      @78
+        unzOpenCurrentFilePassword               @79
+
+        zipOpen                                  @80
+        zipOpenNewFileInZip                      @81
+        zipWriteInFileInZip                      @82
+        zipCloseFileInZip                        @83
+        zipClose                                 @84
+        zipOpenNewFileInZip2                     @86
+        zipCloseFileInZipRaw                     @87
+        zipOpen2                                 @88
+        zipOpenNewFileInZip3                     @89
+
+        unzGetFilePos                            @100
+        unzGoToFilePos                           @101
+
+        fill_win32_filefunc                      @110
+
+; zlibwapi v1.2.4 added:
+        fill_win32_filefunc64                   @111
+        fill_win32_filefunc64A                  @112
+        fill_win32_filefunc64W                  @113
+
+        unzOpen64                               @120
+        unzOpen2_64                             @121
+        unzGetGlobalInfo64                      @122
+        unzGetCurrentFileInfo64                 @124
+        unzGetCurrentFileZStreamPos64           @125
+        unztell64                               @126
+        unzGetFilePos64                         @127
+        unzGoToFilePos64                        @128
+
+        zipOpen64                               @130
+        zipOpen2_64                             @131
+        zipOpenNewFileInZip64                   @132
+        zipOpenNewFileInZip2_64                 @133
+        zipOpenNewFileInZip3_64                 @134
+        zipOpenNewFileInZip4_64                 @135
+        zipCloseFileInZipRaw64                  @136
+
+; zlib1 v1.2.4 added:
+        adler32_combine                         @140
+        crc32_combine                           @142
+        deflateSetHeader                        @144
+        deflateTune                             @145
+        gzbuffer                                @146
+        gzclose_r                               @147
+        gzclose_w                               @148
+        gzdirect                                @149
+        gzoffset                                @150
+        inflateGetHeader                        @156
+        inflateMark                             @157
+        inflatePrime                            @158
+        inflateReset2                           @159
+        inflateUndermine                        @160
+
+; zlib1 v1.2.6 added:
+        gzgetc_                                 @161
+        inflateResetKeep                        @163
+        deflateResetKeep                        @164
+
+; zlib1 v1.2.7 added:
+        gzopen_w                                @165
+
+; zlib1 v1.2.8 added:
+        inflateGetDictionary                    @166
+        gzvprintf                               @167
+
+; zlib1 v1.2.9 added:
+        inflateCodesUsed                        @168
+        inflateValidate                         @169
+        uncompress2                             @170
+        gzfread                                 @171
+        gzfwrite                                @172
+        deflateGetDictionary                    @173
+        adler32_z                               @174
+        crc32_z                                 @175
+
+; zlib1 v1.2.12 added:
+		crc32_combine_gen						@176
+		crc32_combine_gen64						@177
+		crc32_combine_op						@178
diff --git a/compat/zlib/contrib/vstudio/vc17/zlibvc.sln b/compat/zlib/contrib/vstudio/vc17/zlibvc.sln
new file mode 100644
index 0000000..67896b7
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc17/zlibvc.sln
@@ -0,0 +1,179 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.4.33015.44
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibvc", "zlibvc.vcxproj", "{8FD826F8-3739-44E6-8CC8-997122E53B8D}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibstat", "zlibstat.vcxproj", "{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlib", "testzlib.vcxproj", "{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlibdll", "testzlibdll.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694366A}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "minizip", "minizip.vcxproj", "{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "miniunz", "miniunz.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694382A}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|ARM = Debug|ARM
+		Debug|ARM64 = Debug|ARM64
+		Debug|Win32 = Debug|Win32
+		Debug|x64 = Debug|x64
+		Release|ARM = Release|ARM
+		Release|ARM64 = Release|ARM64
+		Release|Win32 = Release|Win32
+		Release|x64 = Release|x64
+		ReleaseWithoutAsm|ARM = ReleaseWithoutAsm|ARM
+		ReleaseWithoutAsm|ARM64 = ReleaseWithoutAsm|ARM64
+		ReleaseWithoutAsm|Win32 = ReleaseWithoutAsm|Win32
+		ReleaseWithoutAsm|x64 = ReleaseWithoutAsm|x64
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|ARM.ActiveCfg = Debug|ARM
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|ARM.Build.0 = Debug|ARM
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|ARM64.Build.0 = Debug|ARM64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.ActiveCfg = Debug|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.Build.0 = Debug|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.ActiveCfg = Debug|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.Build.0 = Debug|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|ARM.ActiveCfg = Release|ARM
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|ARM.Build.0 = Release|ARM
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|ARM64.ActiveCfg = Release|ARM64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|ARM64.Build.0 = Release|ARM64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.ActiveCfg = Release|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.Build.0 = Release|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.ActiveCfg = Release|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.Build.0 = Release|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|ARM.ActiveCfg = ReleaseWithoutAsm|ARM
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|ARM.Build.0 = ReleaseWithoutAsm|ARM
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|ARM64.ActiveCfg = ReleaseWithoutAsm|ARM64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|ARM64.Build.0 = ReleaseWithoutAsm|ARM64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|ARM.ActiveCfg = Debug|ARM
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|ARM.Build.0 = Debug|ARM
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|ARM64.Build.0 = Debug|ARM64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.ActiveCfg = Debug|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.Build.0 = Debug|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.ActiveCfg = Debug|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.Build.0 = Debug|x64
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diff --git a/compat/zlib/contrib/vstudio/vc17/zlibvc.vcxproj b/compat/zlib/contrib/vstudio/vc17/zlibvc.vcxproj
new file mode 100644
index 0000000..10a7a90
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc17/zlibvc.vcxproj
@@ -0,0 +1,875 @@
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+    <ClCompile>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeaderOutputFile>$(IntDir)zlibvc.pch</PrecompiledHeaderOutputFile>
+      <AssemblerOutput>All</AssemblerOutput>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <ObjectFileName>$(IntDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
+      <BrowseInformation>
+      </BrowseInformation>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </ClCompile>
+    <ResourceCompile>
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Link>
+      <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>
+      <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>
+      <ProgramDatabaseFile>$(OutDir)zlibwapi.pdb</ProgramDatabaseFile>
+      <GenerateMapFile>true</GenerateMapFile>
+      <MapFileName>$(OutDir)zlibwapi.map</MapFileName>
+      <SubSystem>Windows</SubSystem>
+      <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|ARM'">
+    <Midl>
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MkTypLibCompatible>true</MkTypLibCompatible>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <TypeLibraryName>$(OutDir)zlibvc.tlb</TypeLibraryName>
+    </Midl>
+    <ClCompile>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeaderOutputFile>$(IntDir)zlibvc.pch</PrecompiledHeaderOutputFile>
+      <AssemblerOutput>All</AssemblerOutput>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <ObjectFileName>$(IntDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
+      <BrowseInformation>
+      </BrowseInformation>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </ClCompile>
+    <ResourceCompile>
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Link>
+      <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>
+      <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>
+      <ProgramDatabaseFile>$(OutDir)zlibwapi.pdb</ProgramDatabaseFile>
+      <GenerateMapFile>true</GenerateMapFile>
+      <MapFileName>$(OutDir)zlibwapi.map</MapFileName>
+      <SubSystem>Windows</SubSystem>
+      <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Midl>
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MkTypLibCompatible>true</MkTypLibCompatible>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <TargetEnvironment>X64</TargetEnvironment>
+      <TypeLibraryName>$(OutDir)zlibvc.tlb</TypeLibraryName>
+    </Midl>
+    <ClCompile>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeaderOutputFile>$(IntDir)zlibvc.pch</PrecompiledHeaderOutputFile>
+      <AssemblerOutput>All</AssemblerOutput>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <ObjectFileName>$(IntDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
+      <BrowseInformation>
+      </BrowseInformation>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </ClCompile>
+    <ResourceCompile>
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Link>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>
+      <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>
+      <ProgramDatabaseFile>$(OutDir)zlibwapi.pdb</ProgramDatabaseFile>
+      <GenerateMapFile>true</GenerateMapFile>
+      <MapFileName>$(OutDir)zlibwapi.map</MapFileName>
+      <SubSystem>Windows</SubSystem>
+      <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>
+      <TargetMachine>MachineX64</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">
+    <Midl>
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MkTypLibCompatible>true</MkTypLibCompatible>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <TypeLibraryName>$(OutDir)zlibvc.tlb</TypeLibraryName>
+    </Midl>
+    <ClCompile>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeaderOutputFile>$(IntDir)zlibvc.pch</PrecompiledHeaderOutputFile>
+      <AssemblerOutput>All</AssemblerOutput>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <ObjectFileName>$(IntDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
+      <BrowseInformation>
+      </BrowseInformation>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </ClCompile>
+    <ResourceCompile>
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Link>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>
+      <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>
+      <ProgramDatabaseFile>$(OutDir)zlibwapi.pdb</ProgramDatabaseFile>
+      <GenerateMapFile>true</GenerateMapFile>
+      <MapFileName>$(OutDir)zlibwapi.map</MapFileName>
+      <SubSystem>Windows</SubSystem>
+      <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">
+    <Midl>
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MkTypLibCompatible>true</MkTypLibCompatible>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <TypeLibraryName>$(OutDir)zlibvc.tlb</TypeLibraryName>
+    </Midl>
+    <ClCompile>
+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN32;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>true</StringPooling>
+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeaderOutputFile>$(IntDir)zlibvc.pch</PrecompiledHeaderOutputFile>
+      <AssemblerOutput>All</AssemblerOutput>
+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
+      <ObjectFileName>$(IntDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
+      <BrowseInformation>
+      </BrowseInformation>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+    </ClCompile>
+    <ResourceCompile>
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <Culture>0x040c</Culture>
+    </ResourceCompile>
+    <Link>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>
+      <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>
+      <ProgramDatabaseFile>$(OutDir)zlibwapi.pdb</ProgramDatabaseFile>
+      <GenerateMapFile>true</GenerateMapFile>
+      <MapFileName>$(OutDir)zlibwapi.map</MapFileName>
+      <SubSystem>Windows</SubSystem>
+      <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\..\adler32.c" />
+    <ClCompile Include="..\..\..\compress.c" />
+    <ClCompile Include="..\..\..\crc32.c" />
+    <ClCompile Include="..\..\..\deflate.c" />
+    <ClCompile Include="..\..\..\gzclose.c" />
+    <ClCompile Include="..\..\..\gzlib.c" />
+    <ClCompile Include="..\..\..\gzread.c" />
+    <ClCompile Include="..\..\..\gzwrite.c" />
+    <ClCompile Include="..\..\..\infback.c" />
+    <ClCompile Include="..\..\..\inffast.c" />
+    <ClCompile Include="..\..\..\inflate.c" />
+    <ClCompile Include="..\..\..\inftrees.c" />
+    <ClCompile Include="..\..\minizip\ioapi.c" />
+    <ClCompile Include="..\..\minizip\iowin32.c" />
+    <ClCompile Include="..\..\..\trees.c" />
+    <ClCompile Include="..\..\..\uncompr.c" />
+    <ClCompile Include="..\..\minizip\unzip.c">
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">ZLIB_INTERNAL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|x64'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">ZLIB_INTERNAL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">ZLIB_INTERNAL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">ZLIB_INTERNAL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <ClCompile Include="..\..\minizip\zip.c">
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">ZLIB_INTERNAL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|x64'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">ZLIB_INTERNAL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">ZLIB_INTERNAL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">ZLIB_INTERNAL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <ClCompile Include="..\..\..\zutil.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="zlib.rc" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="zlibvc.def" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\..\..\deflate.h" />
+    <ClInclude Include="..\..\..\infblock.h" />
+    <ClInclude Include="..\..\..\infcodes.h" />
+    <ClInclude Include="..\..\..\inffast.h" />
+    <ClInclude Include="..\..\..\inftrees.h" />
+    <ClInclude Include="..\..\..\infutil.h" />
+    <ClInclude Include="..\..\..\zconf.h" />
+    <ClInclude Include="..\..\..\zlib.h" />
+    <ClInclude Include="..\..\..\zutil.h" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
+\ No newline at end of file
diff --git a/compat/zlib/contrib/vstudio/vc9/miniunz.vcproj b/compat/zlib/contrib/vstudio/vc9/miniunz.vcproj
new file mode 100644
index 0000000..cc3d13a
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc9/miniunz.vcproj
@@ -0,0 +1,565 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="9.00"
+	Name="miniunz"
+	ProjectGUID="{C52F9E7B-498A-42BE-8DB4-85A15694382A}"
+	Keyword="Win32Proj"
+	TargetFrameworkVersion="131072"
+	>
+	<Platforms>
+		<Platform
+			Name="Win32"
+		/>
+		<Platform
+			Name="x64"
+		/>
+		<Platform
+			Name="Itanium"
+		/>
+	</Platforms>
+	<ToolFiles>
+	</ToolFiles>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory="x86\MiniUnzip$(ConfigurationName)"
+			IntermediateDirectory="x86\MiniUnzip$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"
+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="1"
+				BufferSecurityCheck="false"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="4"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="x86\ZlibDllDebug\zlibwapi.lib"
+				OutputFile="$(OutDir)/miniunz.exe"
+				LinkIncremental="2"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				ProgramDatabaseFile="$(OutDir)/miniunz.pdb"
+				SubSystem="1"
+				RandomizedBaseAddress="1"
+				DataExecutionPrevention="0"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="x86\MiniUnzip$(ConfigurationName)"
+			IntermediateDirectory="x86\MiniUnzip$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				InlineFunctionExpansion="1"
+				OmitFramePointers="true"
+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"
+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE"
+				StringPooling="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="0"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="x86\ZlibDllRelease\zlibwapi.lib"
+				OutputFile="$(OutDir)/miniunz.exe"
+				LinkIncremental="1"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				OptimizeForWindows98="1"
+				RandomizedBaseAddress="1"
+				DataExecutionPrevention="0"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Debug|x64"
+			OutputDirectory="x64\MiniUnzip$(ConfigurationName)"
+			IntermediateDirectory="x64\MiniUnzip$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"
+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="3"
+				BufferSecurityCheck="false"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="x64\ZlibDllDebug\zlibwapi.lib"
+				OutputFile="$(OutDir)/miniunz.exe"
+				LinkIncremental="2"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				ProgramDatabaseFile="$(OutDir)/miniunz.pdb"
+				SubSystem="1"
+				TargetMachine="17"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCWebDeploymentTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Debug|Itanium"
+			OutputDirectory="ia64\MiniUnzip$(ConfigurationName)"
+			IntermediateDirectory="ia64\MiniUnzip$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="2"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"
+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="3"
+				BufferSecurityCheck="false"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="ia64\ZlibDllDebug\zlibwapi.lib"
+				OutputFile="$(OutDir)/miniunz.exe"
+				LinkIncremental="2"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				ProgramDatabaseFile="$(OutDir)/miniunz.pdb"
+				SubSystem="1"
+				TargetMachine="5"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCWebDeploymentTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|x64"
+			OutputDirectory="x64\MiniUnzip$(ConfigurationName)"
+			IntermediateDirectory="x64\MiniUnzip$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				InlineFunctionExpansion="1"
+				OmitFramePointers="true"
+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"
+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64"
+				StringPooling="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="2"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="x64\ZlibDllRelease\zlibwapi.lib"
+				OutputFile="$(OutDir)/miniunz.exe"
+				LinkIncremental="1"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				OptimizeForWindows98="1"
+				TargetMachine="17"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCWebDeploymentTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Itanium"
+			OutputDirectory="ia64\MiniUnzip$(ConfigurationName)"
+			IntermediateDirectory="ia64\MiniUnzip$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="2"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				InlineFunctionExpansion="1"
+				OmitFramePointers="true"
+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"
+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64"
+				StringPooling="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="2"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="ia64\ZlibDllRelease\zlibwapi.lib"
+				OutputFile="$(OutDir)/miniunz.exe"
+				LinkIncremental="1"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				OptimizeForWindows98="1"
+				TargetMachine="5"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCWebDeploymentTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+	</Configurations>
+	<References>
+	</References>
+	<Files>
+		<Filter
+			Name="Source Files"
+			Filter="cpp;c;cxx;def;odl;idl;hpj;bat"
+			>
+			<File
+				RelativePath="..\..\minizip\miniunz.c"
+				>
+			</File>
+		</Filter>
+		<Filter
+			Name="Header Files"
+			Filter="h;hpp;hxx;hm;inl;inc"
+			>
+		</Filter>
+		<Filter
+			Name="Resource Files"
+			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"
+			>
+		</Filter>
+	</Files>
+	<Globals>
+	</Globals>
+</VisualStudioProject>
diff --git a/compat/zlib/contrib/vstudio/vc9/minizip.vcproj b/compat/zlib/contrib/vstudio/vc9/minizip.vcproj
new file mode 100644
index 0000000..fecd9dd
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc9/minizip.vcproj
@@ -0,0 +1,562 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="9.00"
+	Name="minizip"
+	ProjectGUID="{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}"
+	Keyword="Win32Proj"
+	TargetFrameworkVersion="131072"
+	>
+	<Platforms>
+		<Platform
+			Name="Win32"
+		/>
+		<Platform
+			Name="x64"
+		/>
+		<Platform
+			Name="Itanium"
+		/>
+	</Platforms>
+	<ToolFiles>
+	</ToolFiles>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory="x86\MiniZip$(ConfigurationName)"
+			IntermediateDirectory="x86\MiniZip$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"
+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="1"
+				BufferSecurityCheck="false"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="4"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="x86\ZlibDllDebug\zlibwapi.lib"
+				OutputFile="$(OutDir)/minizip.exe"
+				LinkIncremental="2"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				ProgramDatabaseFile="$(OutDir)/minizip.pdb"
+				SubSystem="1"
+				RandomizedBaseAddress="1"
+				DataExecutionPrevention="0"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="x86\MiniZip$(ConfigurationName)"
+			IntermediateDirectory="x86\MiniZip$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				InlineFunctionExpansion="1"
+				OmitFramePointers="true"
+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"
+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE"
+				StringPooling="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="0"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="x86\ZlibDllRelease\zlibwapi.lib"
+				OutputFile="$(OutDir)/minizip.exe"
+				LinkIncremental="1"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				OptimizeForWindows98="1"
+				RandomizedBaseAddress="1"
+				DataExecutionPrevention="0"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Debug|x64"
+			OutputDirectory="x64\$(ConfigurationName)"
+			IntermediateDirectory="x64\$(ConfigurationName)"
+			ConfigurationType="1"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"
+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="3"
+				BufferSecurityCheck="false"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="x64\ZlibDllDebug\zlibwapi.lib"
+				OutputFile="$(OutDir)/minizip.exe"
+				LinkIncremental="2"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				ProgramDatabaseFile="$(OutDir)/minizip.pdb"
+				SubSystem="1"
+				TargetMachine="17"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCWebDeploymentTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Debug|Itanium"
+			OutputDirectory="ia64\$(ConfigurationName)"
+			IntermediateDirectory="ia64\$(ConfigurationName)"
+			ConfigurationType="1"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="2"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"
+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="3"
+				BufferSecurityCheck="false"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="ia64\ZlibDllDebug\zlibwapi.lib"
+				OutputFile="$(OutDir)/minizip.exe"
+				LinkIncremental="2"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				ProgramDatabaseFile="$(OutDir)/minizip.pdb"
+				SubSystem="1"
+				TargetMachine="5"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCWebDeploymentTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|x64"
+			OutputDirectory="x64\$(ConfigurationName)"
+			IntermediateDirectory="x64\$(ConfigurationName)"
+			ConfigurationType="1"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				InlineFunctionExpansion="1"
+				OmitFramePointers="true"
+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"
+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64"
+				StringPooling="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="2"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="x64\ZlibDllRelease\zlibwapi.lib"
+				OutputFile="$(OutDir)/minizip.exe"
+				LinkIncremental="1"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				OptimizeForWindows98="1"
+				TargetMachine="17"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCWebDeploymentTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Itanium"
+			OutputDirectory="ia64\$(ConfigurationName)"
+			IntermediateDirectory="ia64\$(ConfigurationName)"
+			ConfigurationType="1"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="2"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				InlineFunctionExpansion="1"
+				OmitFramePointers="true"
+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"
+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64"
+				StringPooling="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="2"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="ia64\ZlibDllRelease\zlibwapi.lib"
+				OutputFile="$(OutDir)/minizip.exe"
+				LinkIncremental="1"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				OptimizeForWindows98="1"
+				TargetMachine="5"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCWebDeploymentTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+	</Configurations>
+	<References>
+	</References>
+	<Files>
+		<Filter
+			Name="Source Files"
+			Filter="cpp;c;cxx;def;odl;idl;hpj;bat"
+			>
+			<File
+				RelativePath="..\..\minizip\minizip.c"
+				>
+			</File>
+		</Filter>
+		<Filter
+			Name="Header Files"
+			Filter="h;hpp;hxx;hm;inl;inc"
+			>
+		</Filter>
+		<Filter
+			Name="Resource Files"
+			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"
+			>
+		</Filter>
+	</Files>
+	<Globals>
+	</Globals>
+</VisualStudioProject>
diff --git a/compat/zlib/contrib/vstudio/vc9/testzlib.vcproj b/compat/zlib/contrib/vstudio/vc9/testzlib.vcproj
new file mode 100644
index 0000000..ff69640
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc9/testzlib.vcproj
@@ -0,0 +1,796 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="9,00"
+	Name="testzlib"
+	ProjectGUID="{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}"
+	RootNamespace="testzlib"
+	Keyword="Win32Proj"
+	TargetFrameworkVersion="131072"
+	>
+	<Platforms>
+		<Platform
+			Name="Win32"
+		/>
+		<Platform
+			Name="x64"
+		/>
+		<Platform
+			Name="Itanium"
+		/>
+	</Platforms>
+	<ToolFiles>
+	</ToolFiles>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory="x86\TestZlib$(ConfigurationName)"
+			IntermediateDirectory="x86\TestZlib$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="1"
+				BufferSecurityCheck="false"
+				UsePrecompiledHeader="0"
+				AssemblerOutput="4"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="4"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				OutputFile="$(OutDir)/testzlib.exe"
+				LinkIncremental="2"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				ProgramDatabaseFile="$(OutDir)/testzlib.pdb"
+				SubSystem="1"
+				RandomizedBaseAddress="1"
+				DataExecutionPrevention="0"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Debug|x64"
+			OutputDirectory="x64\TestZlib$(ConfigurationName)"
+			IntermediateDirectory="x64\TestZlib$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="3"
+				BufferSecurityCheck="false"
+				AssemblerListingLocation="$(IntDir)\"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				GenerateManifest="false"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Debug|Itanium"
+			OutputDirectory="ia64\TestZlib$(ConfigurationName)"
+			IntermediateDirectory="ia64\TestZlib$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="2"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="3"
+				BufferSecurityCheck="false"
+				UsePrecompiledHeader="0"
+				AssemblerOutput="4"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				OutputFile="$(OutDir)/testzlib.exe"
+				LinkIncremental="2"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				ProgramDatabaseFile="$(OutDir)/testzlib.pdb"
+				SubSystem="1"
+				TargetMachine="5"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="ReleaseWithoutAsm|Win32"
+			OutputDirectory="x86\TestZlib$(ConfigurationName)"
+			IntermediateDirectory="x86\TestZlib$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			CharacterSet="2"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				InlineFunctionExpansion="1"
+				OmitFramePointers="true"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
+				StringPooling="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="0"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				OutputFile="$(OutDir)/testzlib.exe"
+				LinkIncremental="1"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				OptimizeForWindows98="1"
+				RandomizedBaseAddress="1"
+				DataExecutionPrevention="0"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="ReleaseWithoutAsm|x64"
+			OutputDirectory="x64\TestZlib$(ConfigurationName)"
+			IntermediateDirectory="x64\TestZlib$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="2"
+				BufferSecurityCheck="false"
+				AssemblerListingLocation="$(IntDir)\"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies=""
+				GenerateManifest="false"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="ReleaseWithoutAsm|Itanium"
+			OutputDirectory="ia64\TestZlib$(ConfigurationName)"
+			IntermediateDirectory="ia64\TestZlib$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			CharacterSet="2"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="2"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				InlineFunctionExpansion="1"
+				OmitFramePointers="true"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"
+				StringPooling="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="2"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				OutputFile="$(OutDir)/testzlib.exe"
+				LinkIncremental="1"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				OptimizeForWindows98="1"
+				TargetMachine="5"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="x86\TestZlib$(ConfigurationName)"
+			IntermediateDirectory="x86\TestZlib$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			CharacterSet="2"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				InlineFunctionExpansion="1"
+				OmitFramePointers="true"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
+				StringPooling="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="0"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				OutputFile="$(OutDir)/testzlib.exe"
+				LinkIncremental="1"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				OptimizeForWindows98="1"
+				RandomizedBaseAddress="1"
+				DataExecutionPrevention="0"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|x64"
+			OutputDirectory="x64\TestZlib$(ConfigurationName)"
+			IntermediateDirectory="x64\TestZlib$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="0"
+				BufferSecurityCheck="false"
+				AssemblerListingLocation="$(IntDir)\"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				GenerateManifest="false"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Itanium"
+			OutputDirectory="ia64\TestZlib$(ConfigurationName)"
+			IntermediateDirectory="ia64\TestZlib$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			CharacterSet="2"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="2"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				InlineFunctionExpansion="1"
+				OmitFramePointers="true"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"
+				StringPooling="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="2"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				OutputFile="$(OutDir)/testzlib.exe"
+				LinkIncremental="1"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				OptimizeForWindows98="1"
+				TargetMachine="5"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+	</Configurations>
+	<References>
+	</References>
+	<Files>
+		<Filter
+			Name="Source Files"
+			Filter="cpp;c;cxx;def;odl;idl;hpj;bat"
+			>
+			<File
+				RelativePath="..\..\..\adler32.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\compress.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\crc32.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\deflate.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\infback.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\inffast.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\inflate.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\inftrees.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\testzlib\testzlib.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\trees.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\uncompr.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\zutil.c"
+				>
+			</File>
+		</Filter>
+		<Filter
+			Name="Header Files"
+			Filter="h;hpp;hxx;hm;inl;inc"
+			>
+		</Filter>
+		<Filter
+			Name="Resource Files"
+			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"
+			>
+		</Filter>
+	</Files>
+	<Globals>
+	</Globals>
+</VisualStudioProject>
diff --git a/compat/zlib/contrib/vstudio/vc9/testzlibdll.vcproj b/compat/zlib/contrib/vstudio/vc9/testzlibdll.vcproj
new file mode 100644
index 0000000..6448b49
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc9/testzlibdll.vcproj
@@ -0,0 +1,565 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="9.00"
+	Name="TestZlibDll"
+	ProjectGUID="{C52F9E7B-498A-42BE-8DB4-85A15694366A}"
+	Keyword="Win32Proj"
+	TargetFrameworkVersion="131072"
+	>
+	<Platforms>
+		<Platform
+			Name="Win32"
+		/>
+		<Platform
+			Name="x64"
+		/>
+		<Platform
+			Name="Itanium"
+		/>
+	</Platforms>
+	<ToolFiles>
+	</ToolFiles>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory="x86\TestZlibDll$(ConfigurationName)"
+			IntermediateDirectory="x86\TestZlibDll$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"
+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="1"
+				BufferSecurityCheck="false"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="4"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="x86\ZlibDllDebug\zlibwapi.lib"
+				OutputFile="$(OutDir)/testzlib.exe"
+				LinkIncremental="2"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				ProgramDatabaseFile="$(OutDir)/testzlib.pdb"
+				SubSystem="1"
+				RandomizedBaseAddress="1"
+				DataExecutionPrevention="0"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="x86\TestZlibDll$(ConfigurationName)"
+			IntermediateDirectory="x86\TestZlibDll$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				InlineFunctionExpansion="1"
+				OmitFramePointers="true"
+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"
+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE"
+				StringPooling="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="0"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="x86\ZlibDllRelease\zlibwapi.lib"
+				OutputFile="$(OutDir)/testzlib.exe"
+				LinkIncremental="1"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				OptimizeForWindows98="1"
+				RandomizedBaseAddress="1"
+				DataExecutionPrevention="0"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Debug|x64"
+			OutputDirectory="x64\TestZlibDll$(ConfigurationName)"
+			IntermediateDirectory="x64\TestZlibDll$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"
+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="3"
+				BufferSecurityCheck="false"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="x64\ZlibDllDebug\zlibwapi.lib"
+				OutputFile="$(OutDir)/testzlib.exe"
+				LinkIncremental="2"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				ProgramDatabaseFile="$(OutDir)/testzlib.pdb"
+				SubSystem="1"
+				TargetMachine="17"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCWebDeploymentTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Debug|Itanium"
+			OutputDirectory="ia64\TestZlibDll$(ConfigurationName)"
+			IntermediateDirectory="ia64\TestZlibDll$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="2"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"
+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="3"
+				BufferSecurityCheck="false"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="ia64\ZlibDllDebug\zlibwapi.lib"
+				OutputFile="$(OutDir)/testzlib.exe"
+				LinkIncremental="2"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				ProgramDatabaseFile="$(OutDir)/testzlib.pdb"
+				SubSystem="1"
+				TargetMachine="5"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCWebDeploymentTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|x64"
+			OutputDirectory="x64\TestZlibDll$(ConfigurationName)"
+			IntermediateDirectory="x64\TestZlibDll$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				InlineFunctionExpansion="1"
+				OmitFramePointers="true"
+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"
+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64"
+				StringPooling="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="2"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="x64\ZlibDllRelease\zlibwapi.lib"
+				OutputFile="$(OutDir)/testzlib.exe"
+				LinkIncremental="1"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				OptimizeForWindows98="1"
+				TargetMachine="17"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCWebDeploymentTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Itanium"
+			OutputDirectory="ia64\TestZlibDll$(ConfigurationName)"
+			IntermediateDirectory="ia64\TestZlibDll$(ConfigurationName)\Tmp"
+			ConfigurationType="1"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="2"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				InlineFunctionExpansion="1"
+				OmitFramePointers="true"
+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"
+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64"
+				StringPooling="true"
+				BasicRuntimeChecks="0"
+				RuntimeLibrary="2"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				AssemblerListingLocation="$(IntDir)\"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="ia64\ZlibDllRelease\zlibwapi.lib"
+				OutputFile="$(OutDir)/testzlib.exe"
+				LinkIncremental="1"
+				GenerateManifest="false"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				OptimizeForWindows98="1"
+				TargetMachine="5"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCWebDeploymentTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+	</Configurations>
+	<References>
+	</References>
+	<Files>
+		<Filter
+			Name="Source Files"
+			Filter="cpp;c;cxx;def;odl;idl;hpj;bat"
+			>
+			<File
+				RelativePath="..\..\testzlib\testzlib.c"
+				>
+			</File>
+		</Filter>
+		<Filter
+			Name="Header Files"
+			Filter="h;hpp;hxx;hm;inl;inc"
+			>
+		</Filter>
+		<Filter
+			Name="Resource Files"
+			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"
+			>
+		</Filter>
+	</Files>
+	<Globals>
+	</Globals>
+</VisualStudioProject>
diff --git a/compat/zlib/contrib/vstudio/vc9/zlib.rc b/compat/zlib/contrib/vstudio/vc9/zlib.rc
new file mode 100644
index 0000000..856bd11
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc9/zlib.rc
@@ -0,0 +1,32 @@
+#include <windows.h>
+
+#define IDR_VERSION1  1
+IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
+  FILEVERSION	 1, 3, 1, 0
+  PRODUCTVERSION 1, 3, 1, 0
+  FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK
+  FILEFLAGS	0
+  FILEOS	VOS_DOS_WINDOWS32
+  FILETYPE	VFT_DLL
+  FILESUBTYPE	0	// not used
+BEGIN
+  BLOCK "StringFileInfo"
+  BEGIN
+    BLOCK "040904E4"
+    //language ID = U.S. English, char set = Windows, Multilingual
+
+    BEGIN
+      VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"
+      VALUE "FileVersion",	"1.3.1\0"
+      VALUE "InternalName",	"zlib\0"
+      VALUE "OriginalFilename",	"zlibwapi.dll\0"
+      VALUE "ProductName",	"ZLib.DLL\0"
+      VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"
+      VALUE "LegalCopyright", "(C) 1995-2024 Jean-loup Gailly & Mark Adler\0"
+    END
+  END
+  BLOCK "VarFileInfo"
+  BEGIN
+    VALUE "Translation", 0x0409, 1252
+  END
+END
diff --git a/compat/zlib/contrib/vstudio/vc9/zlibstat.vcproj b/compat/zlib/contrib/vstudio/vc9/zlibstat.vcproj
new file mode 100644
index 0000000..1bf1563
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc9/zlibstat.vcproj
@@ -0,0 +1,781 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="9,00"
+	Name="zlibstat"
+	ProjectGUID="{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}"
+	TargetFrameworkVersion="131072"
+	>
+	<Platforms>
+		<Platform
+			Name="Win32"
+		/>
+		<Platform
+			Name="x64"
+		/>
+		<Platform
+			Name="Itanium"
+		/>
+	</Platforms>
+	<ToolFiles>
+	</ToolFiles>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory="x86\ZlibStat$(ConfigurationName)"
+			IntermediateDirectory="x86\ZlibStat$(ConfigurationName)\Tmp"
+			ConfigurationType="4"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
+				ExceptionHandling="0"
+				RuntimeLibrary="1"
+				BufferSecurityCheck="false"
+				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"
+				AssemblerListingLocation="$(IntDir)\"
+				ObjectFile="$(IntDir)\"
+				ProgramDataBaseFileName="$(OutDir)\"
+				WarningLevel="3"
+				SuppressStartupBanner="true"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="1"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				Culture="1036"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLibrarianTool"
+				AdditionalOptions="/MACHINE:X86 /NODEFAULTLIB"
+				OutputFile="$(OutDir)\zlibstat.lib"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Debug|x64"
+			OutputDirectory="x64\ZlibStat$(ConfigurationName)"
+			IntermediateDirectory="x64\ZlibStat$(ConfigurationName)\Tmp"
+			ConfigurationType="4"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"
+				ExceptionHandling="0"
+				RuntimeLibrary="3"
+				BufferSecurityCheck="false"
+				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"
+				AssemblerListingLocation="$(IntDir)\"
+				ObjectFile="$(IntDir)\"
+				ProgramDataBaseFileName="$(OutDir)\"
+				WarningLevel="3"
+				SuppressStartupBanner="true"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="1"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				Culture="1036"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLibrarianTool"
+				AdditionalOptions="/MACHINE:AMD64 /NODEFAULTLIB"
+				OutputFile="$(OutDir)\zlibstat.lib"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Debug|Itanium"
+			OutputDirectory="ia64\ZlibStat$(ConfigurationName)"
+			IntermediateDirectory="ia64\ZlibStat$(ConfigurationName)\Tmp"
+			ConfigurationType="4"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="2"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"
+				ExceptionHandling="0"
+				RuntimeLibrary="3"
+				BufferSecurityCheck="false"
+				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"
+				AssemblerListingLocation="$(IntDir)\"
+				ObjectFile="$(IntDir)\"
+				ProgramDataBaseFileName="$(OutDir)\"
+				WarningLevel="3"
+				SuppressStartupBanner="true"
+				Detect64BitPortabilityProblems="true"
+				DebugInformationFormat="1"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				Culture="1036"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLibrarianTool"
+				AdditionalOptions="/MACHINE:IA64 /NODEFAULTLIB"
+				OutputFile="$(OutDir)\zlibstat.lib"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="x86\ZlibStat$(ConfigurationName)"
+			IntermediateDirectory="x86\ZlibStat$(ConfigurationName)\Tmp"
+			ConfigurationType="4"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				InlineFunctionExpansion="1"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
+				StringPooling="true"
+				ExceptionHandling="0"
+				RuntimeLibrary="0"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"
+				AssemblerListingLocation="$(IntDir)\"
+				ObjectFile="$(IntDir)\"
+				ProgramDataBaseFileName="$(OutDir)\"
+				WarningLevel="3"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				Culture="1036"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLibrarianTool"
+				AdditionalOptions="/MACHINE:X86 /NODEFAULTLIB"
+				OutputFile="$(OutDir)\zlibstat.lib"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|x64"
+			OutputDirectory="x64\ZlibStat$(ConfigurationName)"
+			IntermediateDirectory="x64\ZlibStat$(ConfigurationName)\Tmp"
+			ConfigurationType="4"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				InlineFunctionExpansion="1"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"
+				StringPooling="true"
+				ExceptionHandling="0"
+				RuntimeLibrary="2"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"
+				AssemblerListingLocation="$(IntDir)\"
+				ObjectFile="$(IntDir)\"
+				ProgramDataBaseFileName="$(OutDir)\"
+				WarningLevel="3"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				Culture="1036"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLibrarianTool"
+				AdditionalOptions="/MACHINE:AMD64 /NODEFAULTLIB"
+				OutputFile="$(OutDir)\zlibstat.lib"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Itanium"
+			OutputDirectory="ia64\ZlibStat$(ConfigurationName)"
+			IntermediateDirectory="ia64\ZlibStat$(ConfigurationName)\Tmp"
+			ConfigurationType="4"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="2"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				InlineFunctionExpansion="1"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"
+				StringPooling="true"
+				ExceptionHandling="0"
+				RuntimeLibrary="2"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"
+				AssemblerListingLocation="$(IntDir)\"
+				ObjectFile="$(IntDir)\"
+				ProgramDataBaseFileName="$(OutDir)\"
+				WarningLevel="3"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				Culture="1036"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLibrarianTool"
+				AdditionalOptions="/MACHINE:IA64 /NODEFAULTLIB"
+				OutputFile="$(OutDir)\zlibstat.lib"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="ReleaseWithoutAsm|Win32"
+			OutputDirectory="x86\ZlibStat$(ConfigurationName)"
+			IntermediateDirectory="x86\ZlibStat$(ConfigurationName)\Tmp"
+			ConfigurationType="4"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				InlineFunctionExpansion="1"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
+				StringPooling="true"
+				ExceptionHandling="0"
+				RuntimeLibrary="0"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"
+				AssemblerListingLocation="$(IntDir)\"
+				ObjectFile="$(IntDir)\"
+				ProgramDataBaseFileName="$(OutDir)\"
+				WarningLevel="3"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				Culture="1036"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLibrarianTool"
+				AdditionalOptions="/MACHINE:X86 /NODEFAULTLIB"
+				OutputFile="$(OutDir)\zlibstat.lib"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="ReleaseWithoutAsm|x64"
+			OutputDirectory="x64\ZlibStat$(ConfigurationName)"
+			IntermediateDirectory="x64\ZlibStat$(ConfigurationName)\Tmp"
+			ConfigurationType="4"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				InlineFunctionExpansion="1"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"
+				StringPooling="true"
+				ExceptionHandling="0"
+				RuntimeLibrary="2"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"
+				AssemblerListingLocation="$(IntDir)\"
+				ObjectFile="$(IntDir)\"
+				ProgramDataBaseFileName="$(OutDir)\"
+				WarningLevel="3"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				Culture="1036"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLibrarianTool"
+				AdditionalOptions="/MACHINE:AMD64 /NODEFAULTLIB"
+				OutputFile="$(OutDir)\zlibstat.lib"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="ReleaseWithoutAsm|Itanium"
+			OutputDirectory="ia64\ZlibStat$(ConfigurationName)"
+			IntermediateDirectory="ia64\ZlibStat$(ConfigurationName)\Tmp"
+			ConfigurationType="4"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="2"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				InlineFunctionExpansion="1"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"
+				StringPooling="true"
+				ExceptionHandling="0"
+				RuntimeLibrary="2"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"
+				AssemblerListingLocation="$(IntDir)\"
+				ObjectFile="$(IntDir)\"
+				ProgramDataBaseFileName="$(OutDir)\"
+				WarningLevel="3"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				Culture="1036"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLibrarianTool"
+				AdditionalOptions="/MACHINE:IA64 /NODEFAULTLIB"
+				OutputFile="$(OutDir)\zlibstat.lib"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+	</Configurations>
+	<References>
+	</References>
+	<Files>
+		<Filter
+			Name="Source Files"
+			>
+			<File
+				RelativePath="..\..\..\adler32.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\compress.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\crc32.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\deflate.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\gzclose.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\gzguts.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\gzlib.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\gzread.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\gzwrite.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\infback.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\inffast.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\inflate.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\inftrees.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\minizip\ioapi.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\trees.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\uncompr.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\minizip\unzip.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\minizip\zip.c"
+				>
+			</File>
+			<File
+				RelativePath=".\zlib.rc"
+				>
+			</File>
+			<File
+				RelativePath=".\zlibvc.def"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\zutil.c"
+				>
+			</File>
+		</Filter>
+	</Files>
+	<Globals>
+	</Globals>
+</VisualStudioProject>
diff --git a/compat/zlib/contrib/vstudio/vc9/zlibvc.def b/compat/zlib/contrib/vstudio/vc9/zlibvc.def
new file mode 100644
index 0000000..3234a02
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc9/zlibvc.def
@@ -0,0 +1,158 @@
+LIBRARY
+; zlib data compression and ZIP file I/O library
+
+VERSION		1.3.1
+
+EXPORTS
+        adler32                                  @1
+        compress                                 @2
+        crc32                                    @3
+        deflate                                  @4
+        deflateCopy                              @5
+        deflateEnd                               @6
+        deflateInit2_                            @7
+        deflateInit_                             @8
+        deflateParams                            @9
+        deflateReset                             @10
+        deflateSetDictionary                     @11
+        gzclose                                  @12
+        gzdopen                                  @13
+        gzerror                                  @14
+        gzflush                                  @15
+        gzopen                                   @16
+        gzread                                   @17
+        gzwrite                                  @18
+        inflate                                  @19
+        inflateEnd                               @20
+        inflateInit2_                            @21
+        inflateInit_                             @22
+        inflateReset                             @23
+        inflateSetDictionary                     @24
+        inflateSync                              @25
+        uncompress                               @26
+        zlibVersion                              @27
+        gzprintf                                 @28
+        gzputc                                   @29
+        gzgetc                                   @30
+        gzseek                                   @31
+        gzrewind                                 @32
+        gztell                                   @33
+        gzeof                                    @34
+        gzsetparams                              @35
+        zError                                   @36
+        inflateSyncPoint                         @37
+        get_crc_table                            @38
+        compress2                                @39
+        gzputs                                   @40
+        gzgets                                   @41
+        inflateCopy                              @42
+        inflateBackInit_                         @43
+        inflateBack                              @44
+        inflateBackEnd                           @45
+        compressBound                            @46
+        deflateBound                             @47
+        gzclearerr                               @48
+        gzungetc                                 @49
+        zlibCompileFlags                         @50
+        deflatePrime                             @51
+        deflatePending                           @52
+
+        unzOpen                                  @61
+        unzClose                                 @62
+        unzGetGlobalInfo                         @63
+        unzGetCurrentFileInfo                    @64
+        unzGoToFirstFile                         @65
+        unzGoToNextFile                          @66
+        unzOpenCurrentFile                       @67
+        unzReadCurrentFile                       @68
+        unzOpenCurrentFile3                      @69
+        unztell                                  @70
+        unzeof                                   @71
+        unzCloseCurrentFile                      @72
+        unzGetGlobalComment                      @73
+        unzStringFileNameCompare                 @74
+        unzLocateFile                            @75
+        unzGetLocalExtrafield                    @76
+        unzOpen2                                 @77
+        unzOpenCurrentFile2                      @78
+        unzOpenCurrentFilePassword               @79
+
+        zipOpen                                  @80
+        zipOpenNewFileInZip                      @81
+        zipWriteInFileInZip                      @82
+        zipCloseFileInZip                        @83
+        zipClose                                 @84
+        zipOpenNewFileInZip2                     @86
+        zipCloseFileInZipRaw                     @87
+        zipOpen2                                 @88
+        zipOpenNewFileInZip3                     @89
+
+        unzGetFilePos                            @100
+        unzGoToFilePos                           @101
+
+        fill_win32_filefunc                      @110
+
+; zlibwapi v1.2.4 added:
+        fill_win32_filefunc64                   @111
+        fill_win32_filefunc64A                  @112
+        fill_win32_filefunc64W                  @113
+
+        unzOpen64                               @120
+        unzOpen2_64                             @121
+        unzGetGlobalInfo64                      @122
+        unzGetCurrentFileInfo64                 @124
+        unzGetCurrentFileZStreamPos64           @125
+        unztell64                               @126
+        unzGetFilePos64                         @127
+        unzGoToFilePos64                        @128
+
+        zipOpen64                               @130
+        zipOpen2_64                             @131
+        zipOpenNewFileInZip64                   @132
+        zipOpenNewFileInZip2_64                 @133
+        zipOpenNewFileInZip3_64                 @134
+        zipOpenNewFileInZip4_64                 @135
+        zipCloseFileInZipRaw64                  @136
+
+; zlib1 v1.2.4 added:
+        adler32_combine                         @140
+        crc32_combine                           @142
+        deflateSetHeader                        @144
+        deflateTune                             @145
+        gzbuffer                                @146
+        gzclose_r                               @147
+        gzclose_w                               @148
+        gzdirect                                @149
+        gzoffset                                @150
+        inflateGetHeader                        @156
+        inflateMark                             @157
+        inflatePrime                            @158
+        inflateReset2                           @159
+        inflateUndermine                        @160
+
+; zlib1 v1.2.6 added:
+        gzgetc_                                 @161
+        inflateResetKeep                        @163
+        deflateResetKeep                        @164
+
+; zlib1 v1.2.7 added:
+        gzopen_w                                @165
+
+; zlib1 v1.2.8 added:
+        inflateGetDictionary                    @166
+        gzvprintf                               @167
+
+; zlib1 v1.2.9 added:
+        inflateCodesUsed                        @168
+        inflateValidate                         @169
+        uncompress2                             @170
+        gzfread                                 @171
+        gzfwrite                                @172
+        deflateGetDictionary                    @173
+        adler32_z                               @174
+        crc32_z                                 @175
+
+; zlib1 v1.2.12 added:
+		crc32_combine_gen						@176
+		crc32_combine_gen64						@177
+		crc32_combine_op						@178
diff --git a/compat/zlib/contrib/vstudio/vc9/zlibvc.sln b/compat/zlib/contrib/vstudio/vc9/zlibvc.sln
new file mode 100644
index 0000000..b482967
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc9/zlibvc.sln
@@ -0,0 +1,144 @@
+
+Microsoft Visual Studio Solution File, Format Version 10.00
+# Visual Studio 2008
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibvc", "zlibvc.vcproj", "{8FD826F8-3739-44E6-8CC8-997122E53B8D}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibstat", "zlibstat.vcproj", "{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlib", "testzlib.vcproj", "{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "TestZlibDll", "testzlibdll.vcproj", "{C52F9E7B-498A-42BE-8DB4-85A15694366A}"
+	ProjectSection(ProjectDependencies) = postProject
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D} = {8FD826F8-3739-44E6-8CC8-997122E53B8D}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "minizip", "minizip.vcproj", "{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}"
+	ProjectSection(ProjectDependencies) = postProject
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D} = {8FD826F8-3739-44E6-8CC8-997122E53B8D}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "miniunz", "miniunz.vcproj", "{C52F9E7B-498A-42BE-8DB4-85A15694382A}"
+	ProjectSection(ProjectDependencies) = postProject
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D} = {8FD826F8-3739-44E6-8CC8-997122E53B8D}
+	EndProjectSection
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Itanium = Debug|Itanium
+		Debug|Win32 = Debug|Win32
+		Debug|x64 = Debug|x64
+		Release|Itanium = Release|Itanium
+		Release|Win32 = Release|Win32
+		Release|x64 = Release|x64
+		ReleaseWithoutAsm|Itanium = ReleaseWithoutAsm|Itanium
+		ReleaseWithoutAsm|Win32 = ReleaseWithoutAsm|Win32
+		ReleaseWithoutAsm|x64 = ReleaseWithoutAsm|x64
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Itanium.ActiveCfg = Debug|Itanium
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Itanium.Build.0 = Debug|Itanium
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.ActiveCfg = Debug|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.Build.0 = Debug|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.ActiveCfg = Debug|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.Build.0 = Debug|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Itanium.ActiveCfg = Release|Itanium
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Itanium.Build.0 = Release|Itanium
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.ActiveCfg = Release|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.Build.0 = Release|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.ActiveCfg = Release|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.Build.0 = Release|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Itanium
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Itanium.Build.0 = ReleaseWithoutAsm|Itanium
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Itanium.ActiveCfg = Debug|Itanium
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Itanium.Build.0 = Debug|Itanium
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.ActiveCfg = Debug|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.Build.0 = Debug|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.ActiveCfg = Debug|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.Build.0 = Debug|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Itanium.ActiveCfg = Release|Itanium
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Itanium.Build.0 = Release|Itanium
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.ActiveCfg = Release|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.Build.0 = Release|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.ActiveCfg = Release|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.Build.0 = Release|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Itanium
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Itanium.Build.0 = ReleaseWithoutAsm|Itanium
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64
+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.ActiveCfg = Debug|Itanium
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.Build.0 = Debug|Itanium
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.ActiveCfg = Debug|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.Build.0 = Debug|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.ActiveCfg = Debug|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.Build.0 = Debug|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.ActiveCfg = Release|Itanium
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.Build.0 = Release|Itanium
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.ActiveCfg = Release|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.Build.0 = Release|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.ActiveCfg = Release|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.Build.0 = Release|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Itanium
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.Build.0 = ReleaseWithoutAsm|Itanium
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64
+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Itanium.ActiveCfg = Debug|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Itanium.Build.0 = Debug|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.ActiveCfg = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.Build.0 = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|x64.ActiveCfg = Debug|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|x64.Build.0 = Debug|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Itanium.ActiveCfg = Release|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Itanium.Build.0 = Release|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Win32.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Win32.Build.0 = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|x64.ActiveCfg = Release|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|x64.Build.0 = Release|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Itanium.Build.0 = Release|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.ActiveCfg = Debug|Itanium
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.Build.0 = Debug|Itanium
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.ActiveCfg = Debug|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.Build.0 = Debug|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.ActiveCfg = Debug|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.Build.0 = Debug|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.ActiveCfg = Release|Itanium
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.Build.0 = Release|Itanium
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.ActiveCfg = Release|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.Build.0 = Release|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.ActiveCfg = Release|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.Build.0 = Release|x64
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Itanium
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.Build.0 = Release|Itanium
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32
+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Itanium.ActiveCfg = Debug|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Itanium.Build.0 = Debug|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Win32.ActiveCfg = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Win32.Build.0 = Debug|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|x64.ActiveCfg = Debug|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|x64.Build.0 = Debug|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Itanium.ActiveCfg = Release|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Itanium.Build.0 = Release|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Win32.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Win32.Build.0 = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|x64.ActiveCfg = Release|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|x64.Build.0 = Release|x64
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|Itanium.Build.0 = Release|Itanium
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32
+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal
diff --git a/compat/zlib/contrib/vstudio/vc9/zlibvc.vcproj b/compat/zlib/contrib/vstudio/vc9/zlibvc.vcproj
new file mode 100644
index 0000000..f11dd1f
--- /dev/null
+++ b/compat/zlib/contrib/vstudio/vc9/zlibvc.vcproj
@@ -0,0 +1,1100 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="9,00"
+	Name="zlibvc"
+	ProjectGUID="{8FD826F8-3739-44E6-8CC8-997122E53B8D}"
+	RootNamespace="zlibvc"
+	TargetFrameworkVersion="131072"
+	>
+	<Platforms>
+		<Platform
+			Name="Win32"
+		/>
+		<Platform
+			Name="x64"
+		/>
+		<Platform
+			Name="Itanium"
+		/>
+	</Platforms>
+	<ToolFiles>
+	</ToolFiles>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory="x86\ZlibDll$(ConfigurationName)"
+			IntermediateDirectory="x86\ZlibDll$(ConfigurationName)\Tmp"
+			ConfigurationType="2"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				PreprocessorDefinitions="_DEBUG"
+				MkTypLibCompatible="true"
+				SuppressStartupBanner="true"
+				TargetEnvironment="1"
+				TypeLibraryName="$(OutDir)/zlibvc.tlb"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI"
+				ExceptionHandling="0"
+				RuntimeLibrary="1"
+				BufferSecurityCheck="false"
+				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"
+				AssemblerListingLocation="$(IntDir)\"
+				ObjectFile="$(IntDir)\"
+				ProgramDataBaseFileName="$(OutDir)\"
+				BrowseInformation="0"
+				WarningLevel="3"
+				SuppressStartupBanner="true"
+				DebugInformationFormat="4"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				PreprocessorDefinitions="_DEBUG"
+				Culture="1036"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalOptions="/MACHINE:I386"
+				OutputFile="$(OutDir)\zlibwapi.dll"
+				LinkIncremental="2"
+				SuppressStartupBanner="true"
+				GenerateManifest="false"
+				ModuleDefinitionFile=".\zlibvc.def"
+				GenerateDebugInformation="true"
+				ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"
+				GenerateMapFile="true"
+				MapFileName="$(OutDir)/zlibwapi.map"
+				SubSystem="2"
+				RandomizedBaseAddress="1"
+				DataExecutionPrevention="0"
+				ImportLibrary="$(OutDir)/zlibwapi.lib"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Debug|x64"
+			OutputDirectory="x64\ZlibDll$(ConfigurationName)"
+			IntermediateDirectory="x64\ZlibDll$(ConfigurationName)\Tmp"
+			ConfigurationType="2"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				PreprocessorDefinitions="_DEBUG"
+				MkTypLibCompatible="true"
+				SuppressStartupBanner="true"
+				TargetEnvironment="3"
+				TypeLibraryName="$(OutDir)/zlibvc.tlb"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64"
+				ExceptionHandling="0"
+				RuntimeLibrary="3"
+				BufferSecurityCheck="false"
+				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"
+				AssemblerListingLocation="$(IntDir)\"
+				ObjectFile="$(IntDir)\"
+				ProgramDataBaseFileName="$(OutDir)\"
+				BrowseInformation="0"
+				WarningLevel="3"
+				SuppressStartupBanner="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				PreprocessorDefinitions="_DEBUG"
+				Culture="1036"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				OutputFile="$(OutDir)\zlibwapi.dll"
+				LinkIncremental="2"
+				SuppressStartupBanner="true"
+				GenerateManifest="false"
+				ModuleDefinitionFile=".\zlibvc.def"
+				GenerateDebugInformation="true"
+				ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"
+				GenerateMapFile="true"
+				MapFileName="$(OutDir)/zlibwapi.map"
+				SubSystem="2"
+				ImportLibrary="$(OutDir)/zlibwapi.lib"
+				TargetMachine="17"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Debug|Itanium"
+			OutputDirectory="ia64\ZlibDll$(ConfigurationName)"
+			IntermediateDirectory="ia64\ZlibDll$(ConfigurationName)\Tmp"
+			ConfigurationType="2"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				PreprocessorDefinitions="_DEBUG"
+				MkTypLibCompatible="true"
+				SuppressStartupBanner="true"
+				TargetEnvironment="2"
+				TypeLibraryName="$(OutDir)/zlibvc.tlb"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64"
+				ExceptionHandling="0"
+				RuntimeLibrary="3"
+				BufferSecurityCheck="false"
+				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"
+				AssemblerListingLocation="$(IntDir)\"
+				ObjectFile="$(IntDir)\"
+				ProgramDataBaseFileName="$(OutDir)\"
+				BrowseInformation="0"
+				WarningLevel="3"
+				SuppressStartupBanner="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				PreprocessorDefinitions="_DEBUG"
+				Culture="1036"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				OutputFile="$(OutDir)\zlibwapi.dll"
+				LinkIncremental="2"
+				SuppressStartupBanner="true"
+				GenerateManifest="false"
+				ModuleDefinitionFile=".\zlibvc.def"
+				GenerateDebugInformation="true"
+				ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"
+				GenerateMapFile="true"
+				MapFileName="$(OutDir)/zlibwapi.map"
+				SubSystem="2"
+				ImportLibrary="$(OutDir)/zlibwapi.lib"
+				TargetMachine="5"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="ReleaseWithoutAsm|Win32"
+			OutputDirectory="x86\ZlibDll$(ConfigurationName)"
+			IntermediateDirectory="x86\ZlibDll$(ConfigurationName)\Tmp"
+			ConfigurationType="2"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				PreprocessorDefinitions="NDEBUG"
+				MkTypLibCompatible="true"
+				SuppressStartupBanner="true"
+				TargetEnvironment="1"
+				TypeLibraryName="$(OutDir)/zlibvc.tlb"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				InlineFunctionExpansion="1"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI"
+				StringPooling="true"
+				ExceptionHandling="0"
+				RuntimeLibrary="2"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"
+				AssemblerOutput="2"
+				AssemblerListingLocation="$(IntDir)\"
+				ObjectFile="$(IntDir)\"
+				ProgramDataBaseFileName="$(OutDir)\"
+				BrowseInformation="0"
+				WarningLevel="3"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				PreprocessorDefinitions="NDEBUG"
+				Culture="1036"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalOptions="/MACHINE:I386"
+				OutputFile="$(OutDir)\zlibwapi.dll"
+				LinkIncremental="1"
+				SuppressStartupBanner="true"
+				GenerateManifest="false"
+				IgnoreAllDefaultLibraries="false"
+				ModuleDefinitionFile=".\zlibvc.def"
+				ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"
+				GenerateMapFile="true"
+				MapFileName="$(OutDir)/zlibwapi.map"
+				SubSystem="2"
+				OptimizeForWindows98="1"
+				RandomizedBaseAddress="1"
+				DataExecutionPrevention="0"
+				ImportLibrary="$(OutDir)/zlibwapi.lib"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="ReleaseWithoutAsm|x64"
+			OutputDirectory="x64\ZlibDll$(ConfigurationName)"
+			IntermediateDirectory="x64\ZlibDll$(ConfigurationName)\Tmp"
+			ConfigurationType="2"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				PreprocessorDefinitions="NDEBUG"
+				MkTypLibCompatible="true"
+				SuppressStartupBanner="true"
+				TargetEnvironment="3"
+				TypeLibraryName="$(OutDir)/zlibvc.tlb"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				InlineFunctionExpansion="1"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64"
+				StringPooling="true"
+				ExceptionHandling="0"
+				RuntimeLibrary="2"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"
+				AssemblerOutput="2"
+				AssemblerListingLocation="$(IntDir)\"
+				ObjectFile="$(IntDir)\"
+				ProgramDataBaseFileName="$(OutDir)\"
+				BrowseInformation="0"
+				WarningLevel="3"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				PreprocessorDefinitions="NDEBUG"
+				Culture="1036"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				OutputFile="$(OutDir)\zlibwapi.dll"
+				LinkIncremental="1"
+				SuppressStartupBanner="true"
+				GenerateManifest="false"
+				IgnoreAllDefaultLibraries="false"
+				ModuleDefinitionFile=".\zlibvc.def"
+				ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"
+				GenerateMapFile="true"
+				MapFileName="$(OutDir)/zlibwapi.map"
+				SubSystem="2"
+				OptimizeForWindows98="1"
+				ImportLibrary="$(OutDir)/zlibwapi.lib"
+				TargetMachine="17"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="ReleaseWithoutAsm|Itanium"
+			OutputDirectory="ia64\ZlibDll$(ConfigurationName)"
+			IntermediateDirectory="ia64\ZlibDll$(ConfigurationName)\Tmp"
+			ConfigurationType="2"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				PreprocessorDefinitions="NDEBUG"
+				MkTypLibCompatible="true"
+				SuppressStartupBanner="true"
+				TargetEnvironment="2"
+				TypeLibraryName="$(OutDir)/zlibvc.tlb"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				InlineFunctionExpansion="1"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64"
+				StringPooling="true"
+				ExceptionHandling="0"
+				RuntimeLibrary="2"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"
+				AssemblerOutput="2"
+				AssemblerListingLocation="$(IntDir)\"
+				ObjectFile="$(IntDir)\"
+				ProgramDataBaseFileName="$(OutDir)\"
+				BrowseInformation="0"
+				WarningLevel="3"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				PreprocessorDefinitions="NDEBUG"
+				Culture="1036"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				OutputFile="$(OutDir)\zlibwapi.dll"
+				LinkIncremental="1"
+				SuppressStartupBanner="true"
+				GenerateManifest="false"
+				IgnoreAllDefaultLibraries="false"
+				ModuleDefinitionFile=".\zlibvc.def"
+				ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"
+				GenerateMapFile="true"
+				MapFileName="$(OutDir)/zlibwapi.map"
+				SubSystem="2"
+				OptimizeForWindows98="1"
+				ImportLibrary="$(OutDir)/zlibwapi.lib"
+				TargetMachine="5"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="x86\ZlibDll$(ConfigurationName)"
+			IntermediateDirectory="x86\ZlibDll$(ConfigurationName)\Tmp"
+			ConfigurationType="2"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				PreprocessorDefinitions="NDEBUG"
+				MkTypLibCompatible="true"
+				SuppressStartupBanner="true"
+				TargetEnvironment="1"
+				TypeLibraryName="$(OutDir)/zlibvc.tlb"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				InlineFunctionExpansion="1"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI"
+				StringPooling="true"
+				ExceptionHandling="0"
+				RuntimeLibrary="0"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"
+				AssemblerOutput="2"
+				AssemblerListingLocation="$(IntDir)\"
+				ObjectFile="$(IntDir)\"
+				ProgramDataBaseFileName="$(OutDir)\"
+				BrowseInformation="0"
+				WarningLevel="3"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				PreprocessorDefinitions="NDEBUG"
+				Culture="1036"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalOptions="/MACHINE:I386"
+				OutputFile="$(OutDir)\zlibwapi.dll"
+				LinkIncremental="1"
+				SuppressStartupBanner="true"
+				GenerateManifest="false"
+				IgnoreAllDefaultLibraries="false"
+				ModuleDefinitionFile=".\zlibvc.def"
+				ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"
+				GenerateMapFile="true"
+				MapFileName="$(OutDir)/zlibwapi.map"
+				SubSystem="2"
+				OptimizeForWindows98="1"
+				RandomizedBaseAddress="1"
+				DataExecutionPrevention="0"
+				ImportLibrary="$(OutDir)/zlibwapi.lib"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|x64"
+			OutputDirectory="x64\ZlibDll$(ConfigurationName)"
+			IntermediateDirectory="x64\ZlibDll$(ConfigurationName)\Tmp"
+			ConfigurationType="2"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				PreprocessorDefinitions="NDEBUG"
+				MkTypLibCompatible="true"
+				SuppressStartupBanner="true"
+				TargetEnvironment="3"
+				TypeLibraryName="$(OutDir)/zlibvc.tlb"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				InlineFunctionExpansion="1"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64"
+				StringPooling="true"
+				ExceptionHandling="0"
+				RuntimeLibrary="2"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"
+				AssemblerOutput="2"
+				AssemblerListingLocation="$(IntDir)\"
+				ObjectFile="$(IntDir)\"
+				ProgramDataBaseFileName="$(OutDir)\"
+				BrowseInformation="0"
+				WarningLevel="3"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				PreprocessorDefinitions="NDEBUG"
+				Culture="1036"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				OutputFile="$(OutDir)\zlibwapi.dll"
+				LinkIncremental="1"
+				SuppressStartupBanner="true"
+				GenerateManifest="false"
+				IgnoreAllDefaultLibraries="false"
+				ModuleDefinitionFile=".\zlibvc.def"
+				ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"
+				GenerateMapFile="true"
+				MapFileName="$(OutDir)/zlibwapi.map"
+				SubSystem="2"
+				OptimizeForWindows98="1"
+				ImportLibrary="$(OutDir)/zlibwapi.lib"
+				TargetMachine="17"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Itanium"
+			OutputDirectory="ia64\ZlibDll$(ConfigurationName)"
+			IntermediateDirectory="ia64\ZlibDll$(ConfigurationName)\Tmp"
+			ConfigurationType="2"
+			InheritedPropertySheets="UpgradeFromVC70.vsprops"
+			UseOfMFC="0"
+			ATLMinimizesCRunTimeLibraryUsage="false"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				PreprocessorDefinitions="NDEBUG"
+				MkTypLibCompatible="true"
+				SuppressStartupBanner="true"
+				TargetEnvironment="2"
+				TypeLibraryName="$(OutDir)/zlibvc.tlb"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				InlineFunctionExpansion="1"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64"
+				StringPooling="true"
+				ExceptionHandling="0"
+				RuntimeLibrary="2"
+				BufferSecurityCheck="false"
+				EnableFunctionLevelLinking="true"
+				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"
+				AssemblerOutput="2"
+				AssemblerListingLocation="$(IntDir)\"
+				ObjectFile="$(IntDir)\"
+				ProgramDataBaseFileName="$(OutDir)\"
+				BrowseInformation="0"
+				WarningLevel="3"
+				SuppressStartupBanner="true"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+				PreprocessorDefinitions="NDEBUG"
+				Culture="1036"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				OutputFile="$(OutDir)\zlibwapi.dll"
+				LinkIncremental="1"
+				SuppressStartupBanner="true"
+				GenerateManifest="false"
+				IgnoreAllDefaultLibraries="false"
+				ModuleDefinitionFile=".\zlibvc.def"
+				ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"
+				GenerateMapFile="true"
+				MapFileName="$(OutDir)/zlibwapi.map"
+				SubSystem="2"
+				OptimizeForWindows98="1"
+				ImportLibrary="$(OutDir)/zlibwapi.lib"
+				TargetMachine="5"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+	</Configurations>
+	<References>
+	</References>
+	<Files>
+		<Filter
+			Name="Source Files"
+			Filter="cpp;c;cxx;rc;def;r;odl;hpj;bat;for;f90"
+			>
+			<File
+				RelativePath="..\..\..\adler32.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\compress.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\crc32.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\deflate.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\gzclose.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\gzguts.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\gzlib.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\gzread.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\gzwrite.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\infback.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\inffast.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\inflate.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\inftrees.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\minizip\ioapi.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\minizip\iowin32.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\trees.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\uncompr.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\minizip\unzip.c"
+				>
+				<FileConfiguration
+					Name="Release|Win32"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AdditionalIncludeDirectories=""
+						PreprocessorDefinitions="ZLIB_INTERNAL"
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AdditionalIncludeDirectories=""
+						PreprocessorDefinitions="ZLIB_INTERNAL"
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|Itanium"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AdditionalIncludeDirectories=""
+						PreprocessorDefinitions="ZLIB_INTERNAL"
+					/>
+				</FileConfiguration>
+			</File>
+			<File
+				RelativePath="..\..\minizip\zip.c"
+				>
+				<FileConfiguration
+					Name="Release|Win32"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AdditionalIncludeDirectories=""
+						PreprocessorDefinitions="ZLIB_INTERNAL"
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AdditionalIncludeDirectories=""
+						PreprocessorDefinitions="ZLIB_INTERNAL"
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|Itanium"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AdditionalIncludeDirectories=""
+						PreprocessorDefinitions="ZLIB_INTERNAL"
+					/>
+				</FileConfiguration>
+			</File>
+			<File
+				RelativePath=".\zlib.rc"
+				>
+			</File>
+			<File
+				RelativePath=".\zlibvc.def"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\zutil.c"
+				>
+			</File>
+		</Filter>
+		<Filter
+			Name="Header Files"
+			Filter="h;hpp;hxx;hm;inl;fi;fd"
+			>
+			<File
+				RelativePath="..\..\..\deflate.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\infblock.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\infcodes.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\inffast.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\inftrees.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\infutil.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\zconf.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\zlib.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\zutil.h"
+				>
+			</File>
+		</Filter>
+		<Filter
+			Name="Resource Files"
+			Filter="ico;cur;bmp;dlg;rc2;rct;bin;cnt;rtf;gif;jpg;jpeg;jpe"
+			>
+		</Filter>
+	</Files>
+	<Globals>
+	</Globals>
+</VisualStudioProject>
diff --git a/compat/zlib/crc32.c b/compat/zlib/crc32.c
new file mode 100644
index 0000000..6c38f5c
--- /dev/null
+++ b/compat/zlib/crc32.c
@@ -0,0 +1,1049 @@
+/* crc32.c -- compute the CRC-32 of a data stream
+ * Copyright (C) 1995-2022 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ *
+ * This interleaved implementation of a CRC makes use of pipelined multiple
+ * arithmetic-logic units, commonly found in modern CPU cores. It is due to
+ * Kadatch and Jenkins (2010). See doc/crc-doc.1.0.pdf in this distribution.
+ */
+
+/* @(#) $Id$ */
+
+/*
+  Note on the use of DYNAMIC_CRC_TABLE: there is no mutex or semaphore
+  protection on the static variables used to control the first-use generation
+  of the crc tables. Therefore, if you #define DYNAMIC_CRC_TABLE, you should
+  first call get_crc_table() to initialize the tables before allowing more than
+  one thread to use crc32().
+
+  MAKECRCH can be #defined to write out crc32.h. A main() routine is also
+  produced, so that this one source file can be compiled to an executable.
+ */
+
+#ifdef MAKECRCH
+#  include <stdio.h>
+#  ifndef DYNAMIC_CRC_TABLE
+#    define DYNAMIC_CRC_TABLE
+#  endif /* !DYNAMIC_CRC_TABLE */
+#endif /* MAKECRCH */
+
+#include "zutil.h"      /* for Z_U4, Z_U8, z_crc_t, and FAR definitions */
+
+ /*
+  A CRC of a message is computed on N braids of words in the message, where
+  each word consists of W bytes (4 or 8). If N is 3, for example, then three
+  running sparse CRCs are calculated respectively on each braid, at these
+  indices in the array of words: 0, 3, 6, ..., 1, 4, 7, ..., and 2, 5, 8, ...
+  This is done starting at a word boundary, and continues until as many blocks
+  of N * W bytes as are available have been processed. The results are combined
+  into a single CRC at the end. For this code, N must be in the range 1..6 and
+  W must be 4 or 8. The upper limit on N can be increased if desired by adding
+  more #if blocks, extending the patterns apparent in the code. In addition,
+  crc32.h would need to be regenerated, if the maximum N value is increased.
+
+  N and W are chosen empirically by benchmarking the execution time on a given
+  processor. The choices for N and W below were based on testing on Intel Kaby
+  Lake i7, AMD Ryzen 7, ARM Cortex-A57, Sparc64-VII, PowerPC POWER9, and MIPS64
+  Octeon II processors. The Intel, AMD, and ARM processors were all fastest
+  with N=5, W=8. The Sparc, PowerPC, and MIPS64 were all fastest at N=5, W=4.
+  They were all tested with either gcc or clang, all using the -O3 optimization
+  level. Your mileage may vary.
+ */
+
+/* Define N */
+#ifdef Z_TESTN
+#  define N Z_TESTN
+#else
+#  define N 5
+#endif
+#if N < 1 || N > 6
+#  error N must be in 1..6
+#endif
+
+/*
+  z_crc_t must be at least 32 bits. z_word_t must be at least as long as
+  z_crc_t. It is assumed here that z_word_t is either 32 bits or 64 bits, and
+  that bytes are eight bits.
+ */
+
+/*
+  Define W and the associated z_word_t type. If W is not defined, then a
+  braided calculation is not used, and the associated tables and code are not
+  compiled.
+ */
+#ifdef Z_TESTW
+#  if Z_TESTW-1 != -1
+#    define W Z_TESTW
+#  endif
+#else
+#  ifdef MAKECRCH
+#    define W 8         /* required for MAKECRCH */
+#  else
+#    if defined(__x86_64__) || defined(__aarch64__)
+#      define W 8
+#    else
+#      define W 4
+#    endif
+#  endif
+#endif
+#ifdef W
+#  if W == 8 && defined(Z_U8)
+     typedef Z_U8 z_word_t;
+#  elif defined(Z_U4)
+#    undef W
+#    define W 4
+     typedef Z_U4 z_word_t;
+#  else
+#    undef W
+#  endif
+#endif
+
+/* If available, use the ARM processor CRC32 instruction. */
+#if defined(__aarch64__) && defined(__ARM_FEATURE_CRC32) && W == 8
+#  define ARMCRC32
+#endif
+
+#if defined(W) && (!defined(ARMCRC32) || defined(DYNAMIC_CRC_TABLE))
+/*
+  Swap the bytes in a z_word_t to convert between little and big endian. Any
+  self-respecting compiler will optimize this to a single machine byte-swap
+  instruction, if one is available. This assumes that word_t is either 32 bits
+  or 64 bits.
+ */
+local z_word_t byte_swap(z_word_t word) {
+#  if W == 8
+    return
+        (word & 0xff00000000000000) >> 56 |
+        (word & 0xff000000000000) >> 40 |
+        (word & 0xff0000000000) >> 24 |
+        (word & 0xff00000000) >> 8 |
+        (word & 0xff000000) << 8 |
+        (word & 0xff0000) << 24 |
+        (word & 0xff00) << 40 |
+        (word & 0xff) << 56;
+#  else   /* W == 4 */
+    return
+        (word & 0xff000000) >> 24 |
+        (word & 0xff0000) >> 8 |
+        (word & 0xff00) << 8 |
+        (word & 0xff) << 24;
+#  endif
+}
+#endif
+
+#ifdef DYNAMIC_CRC_TABLE
+/* =========================================================================
+ * Table of powers of x for combining CRC-32s, filled in by make_crc_table()
+ * below.
+ */
+   local z_crc_t FAR x2n_table[32];
+#else
+/* =========================================================================
+ * Tables for byte-wise and braided CRC-32 calculations, and a table of powers
+ * of x for combining CRC-32s, all made by make_crc_table().
+ */
+#  include "crc32.h"
+#endif
+
+/* CRC polynomial. */
+#define POLY 0xedb88320         /* p(x) reflected, with x^32 implied */
+
+/*
+  Return a(x) multiplied by b(x) modulo p(x), where p(x) is the CRC polynomial,
+  reflected. For speed, this requires that a not be zero.
+ */
+local z_crc_t multmodp(z_crc_t a, z_crc_t b) {
+    z_crc_t m, p;
+
+    m = (z_crc_t)1 << 31;
+    p = 0;
+    for (;;) {
+        if (a & m) {
+            p ^= b;
+            if ((a & (m - 1)) == 0)
+                break;
+        }
+        m >>= 1;
+        b = b & 1 ? (b >> 1) ^ POLY : b >> 1;
+    }
+    return p;
+}
+
+/*
+  Return x^(n * 2^k) modulo p(x). Requires that x2n_table[] has been
+  initialized.
+ */
+local z_crc_t x2nmodp(z_off64_t n, unsigned k) {
+    z_crc_t p;
+
+    p = (z_crc_t)1 << 31;           /* x^0 == 1 */
+    while (n) {
+        if (n & 1)
+            p = multmodp(x2n_table[k & 31], p);
+        n >>= 1;
+        k++;
+    }
+    return p;
+}
+
+#ifdef DYNAMIC_CRC_TABLE
+/* =========================================================================
+ * Build the tables for byte-wise and braided CRC-32 calculations, and a table
+ * of powers of x for combining CRC-32s.
+ */
+local z_crc_t FAR crc_table[256];
+#ifdef W
+   local z_word_t FAR crc_big_table[256];
+   local z_crc_t FAR crc_braid_table[W][256];
+   local z_word_t FAR crc_braid_big_table[W][256];
+   local void braid(z_crc_t [][256], z_word_t [][256], int, int);
+#endif
+#ifdef MAKECRCH
+   local void write_table(FILE *, const z_crc_t FAR *, int);
+   local void write_table32hi(FILE *, const z_word_t FAR *, int);
+   local void write_table64(FILE *, const z_word_t FAR *, int);
+#endif /* MAKECRCH */
+
+/*
+  Define a once() function depending on the availability of atomics. If this is
+  compiled with DYNAMIC_CRC_TABLE defined, and if CRCs will be computed in
+  multiple threads, and if atomics are not available, then get_crc_table() must
+  be called to initialize the tables and must return before any threads are
+  allowed to compute or combine CRCs.
+ */
+
+/* Definition of once functionality. */
+typedef struct once_s once_t;
+
+/* Check for the availability of atomics. */
+#if defined(__STDC__) && __STDC_VERSION__ >= 201112L && \
+    !defined(__STDC_NO_ATOMICS__)
+
+#include <stdatomic.h>
+
+/* Structure for once(), which must be initialized with ONCE_INIT. */
+struct once_s {
+    atomic_flag begun;
+    atomic_int done;
+};
+#define ONCE_INIT {ATOMIC_FLAG_INIT, 0}
+
+/*
+  Run the provided init() function exactly once, even if multiple threads
+  invoke once() at the same time. The state must be a once_t initialized with
+  ONCE_INIT.
+ */
+local void once(once_t *state, void (*init)(void)) {
+    if (!atomic_load(&state->done)) {
+        if (atomic_flag_test_and_set(&state->begun))
+            while (!atomic_load(&state->done))
+                ;
+        else {
+            init();
+            atomic_store(&state->done, 1);
+        }
+    }
+}
+
+#else   /* no atomics */
+
+/* Structure for once(), which must be initialized with ONCE_INIT. */
+struct once_s {
+    volatile int begun;
+    volatile int done;
+};
+#define ONCE_INIT {0, 0}
+
+/* Test and set. Alas, not atomic, but tries to minimize the period of
+   vulnerability. */
+local int test_and_set(int volatile *flag) {
+    int was;
+
+    was = *flag;
+    *flag = 1;
+    return was;
+}
+
+/* Run the provided init() function once. This is not thread-safe. */
+local void once(once_t *state, void (*init)(void)) {
+    if (!state->done) {
+        if (test_and_set(&state->begun))
+            while (!state->done)
+                ;
+        else {
+            init();
+            state->done = 1;
+        }
+    }
+}
+
+#endif
+
+/* State for once(). */
+local once_t made = ONCE_INIT;
+
+/*
+  Generate tables for a byte-wise 32-bit CRC calculation on the polynomial:
+  x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1.
+
+  Polynomials over GF(2) are represented in binary, one bit per coefficient,
+  with the lowest powers in the most significant bit. Then adding polynomials
+  is just exclusive-or, and multiplying a polynomial by x is a right shift by
+  one. If we call the above polynomial p, and represent a byte as the
+  polynomial q, also with the lowest power in the most significant bit (so the
+  byte 0xb1 is the polynomial x^7+x^3+x^2+1), then the CRC is (q*x^32) mod p,
+  where a mod b means the remainder after dividing a by b.
+
+  This calculation is done using the shift-register method of multiplying and
+  taking the remainder. The register is initialized to zero, and for each
+  incoming bit, x^32 is added mod p to the register if the bit is a one (where
+  x^32 mod p is p+x^32 = x^26+...+1), and the register is multiplied mod p by x
+  (which is shifting right by one and adding x^32 mod p if the bit shifted out
+  is a one). We start with the highest power (least significant bit) of q and
+  repeat for all eight bits of q.
+
+  The table is simply the CRC of all possible eight bit values. This is all the
+  information needed to generate CRCs on data a byte at a time for all
+  combinations of CRC register values and incoming bytes.
+ */
+
+local void make_crc_table(void) {
+    unsigned i, j, n;
+    z_crc_t p;
+
+    /* initialize the CRC of bytes tables */
+    for (i = 0; i < 256; i++) {
+        p = i;
+        for (j = 0; j < 8; j++)
+            p = p & 1 ? (p >> 1) ^ POLY : p >> 1;
+        crc_table[i] = p;
+#ifdef W
+        crc_big_table[i] = byte_swap(p);
+#endif
+    }
+
+    /* initialize the x^2^n mod p(x) table */
+    p = (z_crc_t)1 << 30;         /* x^1 */
+    x2n_table[0] = p;
+    for (n = 1; n < 32; n++)
+        x2n_table[n] = p = multmodp(p, p);
+
+#ifdef W
+    /* initialize the braiding tables -- needs x2n_table[] */
+    braid(crc_braid_table, crc_braid_big_table, N, W);
+#endif
+
+#ifdef MAKECRCH
+    {
+        /*
+          The crc32.h header file contains tables for both 32-bit and 64-bit
+          z_word_t's, and so requires a 64-bit type be available. In that case,
+          z_word_t must be defined to be 64-bits. This code then also generates
+          and writes out the tables for the case that z_word_t is 32 bits.
+         */
+#if !defined(W) || W != 8
+#  error Need a 64-bit integer type in order to generate crc32.h.
+#endif
+        FILE *out;
+        int k, n;
+        z_crc_t ltl[8][256];
+        z_word_t big[8][256];
+
+        out = fopen("crc32.h", "w");
+        if (out == NULL) return;
+
+        /* write out little-endian CRC table to crc32.h */
+        fprintf(out,
+            "/* crc32.h -- tables for rapid CRC calculation\n"
+            " * Generated automatically by crc32.c\n */\n"
+            "\n"
+            "local const z_crc_t FAR crc_table[] = {\n"
+            "    ");
+        write_table(out, crc_table, 256);
+        fprintf(out,
+            "};\n");
+
+        /* write out big-endian CRC table for 64-bit z_word_t to crc32.h */
+        fprintf(out,
+            "\n"
+            "#ifdef W\n"
+            "\n"
+            "#if W == 8\n"
+            "\n"
+            "local const z_word_t FAR crc_big_table[] = {\n"
+            "    ");
+        write_table64(out, crc_big_table, 256);
+        fprintf(out,
+            "};\n");
+
+        /* write out big-endian CRC table for 32-bit z_word_t to crc32.h */
+        fprintf(out,
+            "\n"
+            "#else /* W == 4 */\n"
+            "\n"
+            "local const z_word_t FAR crc_big_table[] = {\n"
+            "    ");
+        write_table32hi(out, crc_big_table, 256);
+        fprintf(out,
+            "};\n"
+            "\n"
+            "#endif\n");
+
+        /* write out braid tables for each value of N */
+        for (n = 1; n <= 6; n++) {
+            fprintf(out,
+            "\n"
+            "#if N == %d\n", n);
+
+            /* compute braid tables for this N and 64-bit word_t */
+            braid(ltl, big, n, 8);
+
+            /* write out braid tables for 64-bit z_word_t to crc32.h */
+            fprintf(out,
+            "\n"
+            "#if W == 8\n"
+            "\n"
+            "local const z_crc_t FAR crc_braid_table[][256] = {\n");
+            for (k = 0; k < 8; k++) {
+                fprintf(out, "   {");
+                write_table(out, ltl[k], 256);
+                fprintf(out, "}%s", k < 7 ? ",\n" : "");
+            }
+            fprintf(out,
+            "};\n"
+            "\n"
+            "local const z_word_t FAR crc_braid_big_table[][256] = {\n");
+            for (k = 0; k < 8; k++) {
+                fprintf(out, "   {");
+                write_table64(out, big[k], 256);
+                fprintf(out, "}%s", k < 7 ? ",\n" : "");
+            }
+            fprintf(out,
+            "};\n");
+
+            /* compute braid tables for this N and 32-bit word_t */
+            braid(ltl, big, n, 4);
+
+            /* write out braid tables for 32-bit z_word_t to crc32.h */
+            fprintf(out,
+            "\n"
+            "#else /* W == 4 */\n"
+            "\n"
+            "local const z_crc_t FAR crc_braid_table[][256] = {\n");
+            for (k = 0; k < 4; k++) {
+                fprintf(out, "   {");
+                write_table(out, ltl[k], 256);
+                fprintf(out, "}%s", k < 3 ? ",\n" : "");
+            }
+            fprintf(out,
+            "};\n"
+            "\n"
+            "local const z_word_t FAR crc_braid_big_table[][256] = {\n");
+            for (k = 0; k < 4; k++) {
+                fprintf(out, "   {");
+                write_table32hi(out, big[k], 256);
+                fprintf(out, "}%s", k < 3 ? ",\n" : "");
+            }
+            fprintf(out,
+            "};\n"
+            "\n"
+            "#endif\n"
+            "\n"
+            "#endif\n");
+        }
+        fprintf(out,
+            "\n"
+            "#endif\n");
+
+        /* write out zeros operator table to crc32.h */
+        fprintf(out,
+            "\n"
+            "local const z_crc_t FAR x2n_table[] = {\n"
+            "    ");
+        write_table(out, x2n_table, 32);
+        fprintf(out,
+            "};\n");
+        fclose(out);
+    }
+#endif /* MAKECRCH */
+}
+
+#ifdef MAKECRCH
+
+/*
+   Write the 32-bit values in table[0..k-1] to out, five per line in
+   hexadecimal separated by commas.
+ */
+local void write_table(FILE *out, const z_crc_t FAR *table, int k) {
+    int n;
+
+    for (n = 0; n < k; n++)
+        fprintf(out, "%s0x%08lx%s", n == 0 || n % 5 ? "" : "    ",
+                (unsigned long)(table[n]),
+                n == k - 1 ? "" : (n % 5 == 4 ? ",\n" : ", "));
+}
+
+/*
+   Write the high 32-bits of each value in table[0..k-1] to out, five per line
+   in hexadecimal separated by commas.
+ */
+local void write_table32hi(FILE *out, const z_word_t FAR *table, int k) {
+    int n;
+
+    for (n = 0; n < k; n++)
+        fprintf(out, "%s0x%08lx%s", n == 0 || n % 5 ? "" : "    ",
+                (unsigned long)(table[n] >> 32),
+                n == k - 1 ? "" : (n % 5 == 4 ? ",\n" : ", "));
+}
+
+/*
+  Write the 64-bit values in table[0..k-1] to out, three per line in
+  hexadecimal separated by commas. This assumes that if there is a 64-bit
+  type, then there is also a long long integer type, and it is at least 64
+  bits. If not, then the type cast and format string can be adjusted
+  accordingly.
+ */
+local void write_table64(FILE *out, const z_word_t FAR *table, int k) {
+    int n;
+
+    for (n = 0; n < k; n++)
+        fprintf(out, "%s0x%016llx%s", n == 0 || n % 3 ? "" : "    ",
+                (unsigned long long)(table[n]),
+                n == k - 1 ? "" : (n % 3 == 2 ? ",\n" : ", "));
+}
+
+/* Actually do the deed. */
+int main(void) {
+    make_crc_table();
+    return 0;
+}
+
+#endif /* MAKECRCH */
+
+#ifdef W
+/*
+  Generate the little and big-endian braid tables for the given n and z_word_t
+  size w. Each array must have room for w blocks of 256 elements.
+ */
+local void braid(z_crc_t ltl[][256], z_word_t big[][256], int n, int w) {
+    int k;
+    z_crc_t i, p, q;
+    for (k = 0; k < w; k++) {
+        p = x2nmodp((n * w + 3 - k) << 3, 0);
+        ltl[k][0] = 0;
+        big[w - 1 - k][0] = 0;
+        for (i = 1; i < 256; i++) {
+            ltl[k][i] = q = multmodp(i << 24, p);
+            big[w - 1 - k][i] = byte_swap(q);
+        }
+    }
+}
+#endif
+
+#endif /* DYNAMIC_CRC_TABLE */
+
+/* =========================================================================
+ * This function can be used by asm versions of crc32(), and to force the
+ * generation of the CRC tables in a threaded application.
+ */
+const z_crc_t FAR * ZEXPORT get_crc_table(void) {
+#ifdef DYNAMIC_CRC_TABLE
+    once(&made, make_crc_table);
+#endif /* DYNAMIC_CRC_TABLE */
+    return (const z_crc_t FAR *)crc_table;
+}
+
+/* =========================================================================
+ * Use ARM machine instructions if available. This will compute the CRC about
+ * ten times faster than the braided calculation. This code does not check for
+ * the presence of the CRC instruction at run time. __ARM_FEATURE_CRC32 will
+ * only be defined if the compilation specifies an ARM processor architecture
+ * that has the instructions. For example, compiling with -march=armv8.1-a or
+ * -march=armv8-a+crc, or -march=native if the compile machine has the crc32
+ * instructions.
+ */
+#ifdef ARMCRC32
+
+/*
+   Constants empirically determined to maximize speed. These values are from
+   measurements on a Cortex-A57. Your mileage may vary.
+ */
+#define Z_BATCH 3990                /* number of words in a batch */
+#define Z_BATCH_ZEROS 0xa10d3d0c    /* computed from Z_BATCH = 3990 */
+#define Z_BATCH_MIN 800             /* fewest words in a final batch */
+
+unsigned long ZEXPORT crc32_z(unsigned long crc, const unsigned char FAR *buf,
+                              z_size_t len) {
+    z_crc_t val;
+    z_word_t crc1, crc2;
+    const z_word_t *word;
+    z_word_t val0, val1, val2;
+    z_size_t last, last2, i;
+    z_size_t num;
+
+    /* Return initial CRC, if requested. */
+    if (buf == Z_NULL) return 0;
+
+#ifdef DYNAMIC_CRC_TABLE
+    once(&made, make_crc_table);
+#endif /* DYNAMIC_CRC_TABLE */
+
+    /* Pre-condition the CRC */
+    crc = (~crc) & 0xffffffff;
+
+    /* Compute the CRC up to a word boundary. */
+    while (len && ((z_size_t)buf & 7) != 0) {
+        len--;
+        val = *buf++;
+        __asm__ volatile("crc32b %w0, %w0, %w1" : "+r"(crc) : "r"(val));
+    }
+
+    /* Prepare to compute the CRC on full 64-bit words word[0..num-1]. */
+    word = (z_word_t const *)buf;
+    num = len >> 3;
+    len &= 7;
+
+    /* Do three interleaved CRCs to realize the throughput of one crc32x
+       instruction per cycle. Each CRC is calculated on Z_BATCH words. The
+       three CRCs are combined into a single CRC after each set of batches. */
+    while (num >= 3 * Z_BATCH) {
+        crc1 = 0;
+        crc2 = 0;
+        for (i = 0; i < Z_BATCH; i++) {
+            val0 = word[i];
+            val1 = word[i + Z_BATCH];
+            val2 = word[i + 2 * Z_BATCH];
+            __asm__ volatile("crc32x %w0, %w0, %x1" : "+r"(crc) : "r"(val0));
+            __asm__ volatile("crc32x %w0, %w0, %x1" : "+r"(crc1) : "r"(val1));
+            __asm__ volatile("crc32x %w0, %w0, %x1" : "+r"(crc2) : "r"(val2));
+        }
+        word += 3 * Z_BATCH;
+        num -= 3 * Z_BATCH;
+        crc = multmodp(Z_BATCH_ZEROS, crc) ^ crc1;
+        crc = multmodp(Z_BATCH_ZEROS, crc) ^ crc2;
+    }
+
+    /* Do one last smaller batch with the remaining words, if there are enough
+       to pay for the combination of CRCs. */
+    last = num / 3;
+    if (last >= Z_BATCH_MIN) {
+        last2 = last << 1;
+        crc1 = 0;
+        crc2 = 0;
+        for (i = 0; i < last; i++) {
+            val0 = word[i];
+            val1 = word[i + last];
+            val2 = word[i + last2];
+            __asm__ volatile("crc32x %w0, %w0, %x1" : "+r"(crc) : "r"(val0));
+            __asm__ volatile("crc32x %w0, %w0, %x1" : "+r"(crc1) : "r"(val1));
+            __asm__ volatile("crc32x %w0, %w0, %x1" : "+r"(crc2) : "r"(val2));
+        }
+        word += 3 * last;
+        num -= 3 * last;
+        val = x2nmodp(last, 6);
+        crc = multmodp(val, crc) ^ crc1;
+        crc = multmodp(val, crc) ^ crc2;
+    }
+
+    /* Compute the CRC on any remaining words. */
+    for (i = 0; i < num; i++) {
+        val0 = word[i];
+        __asm__ volatile("crc32x %w0, %w0, %x1" : "+r"(crc) : "r"(val0));
+    }
+    word += num;
+
+    /* Complete the CRC on any remaining bytes. */
+    buf = (const unsigned char FAR *)word;
+    while (len) {
+        len--;
+        val = *buf++;
+        __asm__ volatile("crc32b %w0, %w0, %w1" : "+r"(crc) : "r"(val));
+    }
+
+    /* Return the CRC, post-conditioned. */
+    return crc ^ 0xffffffff;
+}
+
+#else
+
+#ifdef W
+
+/*
+  Return the CRC of the W bytes in the word_t data, taking the
+  least-significant byte of the word as the first byte of data, without any pre
+  or post conditioning. This is used to combine the CRCs of each braid.
+ */
+local z_crc_t crc_word(z_word_t data) {
+    int k;
+    for (k = 0; k < W; k++)
+        data = (data >> 8) ^ crc_table[data & 0xff];
+    return (z_crc_t)data;
+}
+
+local z_word_t crc_word_big(z_word_t data) {
+    int k;
+    for (k = 0; k < W; k++)
+        data = (data << 8) ^
+            crc_big_table[(data >> ((W - 1) << 3)) & 0xff];
+    return data;
+}
+
+#endif
+
+/* ========================================================================= */
+unsigned long ZEXPORT crc32_z(unsigned long crc, const unsigned char FAR *buf,
+                              z_size_t len) {
+    /* Return initial CRC, if requested. */
+    if (buf == Z_NULL) return 0;
+
+#ifdef DYNAMIC_CRC_TABLE
+    once(&made, make_crc_table);
+#endif /* DYNAMIC_CRC_TABLE */
+
+    /* Pre-condition the CRC */
+    crc = (~crc) & 0xffffffff;
+
+#ifdef W
+
+    /* If provided enough bytes, do a braided CRC calculation. */
+    if (len >= N * W + W - 1) {
+        z_size_t blks;
+        z_word_t const *words;
+        unsigned endian;
+        int k;
+
+        /* Compute the CRC up to a z_word_t boundary. */
+        while (len && ((z_size_t)buf & (W - 1)) != 0) {
+            len--;
+            crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff];
+        }
+
+        /* Compute the CRC on as many N z_word_t blocks as are available. */
+        blks = len / (N * W);
+        len -= blks * N * W;
+        words = (z_word_t const *)buf;
+
+        /* Do endian check at execution time instead of compile time, since ARM
+           processors can change the endianness at execution time. If the
+           compiler knows what the endianness will be, it can optimize out the
+           check and the unused branch. */
+        endian = 1;
+        if (*(unsigned char *)&endian) {
+            /* Little endian. */
+
+            z_crc_t crc0;
+            z_word_t word0;
+#if N > 1
+            z_crc_t crc1;
+            z_word_t word1;
+#if N > 2
+            z_crc_t crc2;
+            z_word_t word2;
+#if N > 3
+            z_crc_t crc3;
+            z_word_t word3;
+#if N > 4
+            z_crc_t crc4;
+            z_word_t word4;
+#if N > 5
+            z_crc_t crc5;
+            z_word_t word5;
+#endif
+#endif
+#endif
+#endif
+#endif
+
+            /* Initialize the CRC for each braid. */
+            crc0 = crc;
+#if N > 1
+            crc1 = 0;
+#if N > 2
+            crc2 = 0;
+#if N > 3
+            crc3 = 0;
+#if N > 4
+            crc4 = 0;
+#if N > 5
+            crc5 = 0;
+#endif
+#endif
+#endif
+#endif
+#endif
+
+            /*
+              Process the first blks-1 blocks, computing the CRCs on each braid
+              independently.
+             */
+            while (--blks) {
+                /* Load the word for each braid into registers. */
+                word0 = crc0 ^ words[0];
+#if N > 1
+                word1 = crc1 ^ words[1];
+#if N > 2
+                word2 = crc2 ^ words[2];
+#if N > 3
+                word3 = crc3 ^ words[3];
+#if N > 4
+                word4 = crc4 ^ words[4];
+#if N > 5
+                word5 = crc5 ^ words[5];
+#endif
+#endif
+#endif
+#endif
+#endif
+                words += N;
+
+                /* Compute and update the CRC for each word. The loop should
+                   get unrolled. */
+                crc0 = crc_braid_table[0][word0 & 0xff];
+#if N > 1
+                crc1 = crc_braid_table[0][word1 & 0xff];
+#if N > 2
+                crc2 = crc_braid_table[0][word2 & 0xff];
+#if N > 3
+                crc3 = crc_braid_table[0][word3 & 0xff];
+#if N > 4
+                crc4 = crc_braid_table[0][word4 & 0xff];
+#if N > 5
+                crc5 = crc_braid_table[0][word5 & 0xff];
+#endif
+#endif
+#endif
+#endif
+#endif
+                for (k = 1; k < W; k++) {
+                    crc0 ^= crc_braid_table[k][(word0 >> (k << 3)) & 0xff];
+#if N > 1
+                    crc1 ^= crc_braid_table[k][(word1 >> (k << 3)) & 0xff];
+#if N > 2
+                    crc2 ^= crc_braid_table[k][(word2 >> (k << 3)) & 0xff];
+#if N > 3
+                    crc3 ^= crc_braid_table[k][(word3 >> (k << 3)) & 0xff];
+#if N > 4
+                    crc4 ^= crc_braid_table[k][(word4 >> (k << 3)) & 0xff];
+#if N > 5
+                    crc5 ^= crc_braid_table[k][(word5 >> (k << 3)) & 0xff];
+#endif
+#endif
+#endif
+#endif
+#endif
+                }
+            }
+
+            /*
+              Process the last block, combining the CRCs of the N braids at the
+              same time.
+             */
+            crc = crc_word(crc0 ^ words[0]);
+#if N > 1
+            crc = crc_word(crc1 ^ words[1] ^ crc);
+#if N > 2
+            crc = crc_word(crc2 ^ words[2] ^ crc);
+#if N > 3
+            crc = crc_word(crc3 ^ words[3] ^ crc);
+#if N > 4
+            crc = crc_word(crc4 ^ words[4] ^ crc);
+#if N > 5
+            crc = crc_word(crc5 ^ words[5] ^ crc);
+#endif
+#endif
+#endif
+#endif
+#endif
+            words += N;
+        }
+        else {
+            /* Big endian. */
+
+            z_word_t crc0, word0, comb;
+#if N > 1
+            z_word_t crc1, word1;
+#if N > 2
+            z_word_t crc2, word2;
+#if N > 3
+            z_word_t crc3, word3;
+#if N > 4
+            z_word_t crc4, word4;
+#if N > 5
+            z_word_t crc5, word5;
+#endif
+#endif
+#endif
+#endif
+#endif
+
+            /* Initialize the CRC for each braid. */
+            crc0 = byte_swap(crc);
+#if N > 1
+            crc1 = 0;
+#if N > 2
+            crc2 = 0;
+#if N > 3
+            crc3 = 0;
+#if N > 4
+            crc4 = 0;
+#if N > 5
+            crc5 = 0;
+#endif
+#endif
+#endif
+#endif
+#endif
+
+            /*
+              Process the first blks-1 blocks, computing the CRCs on each braid
+              independently.
+             */
+            while (--blks) {
+                /* Load the word for each braid into registers. */
+                word0 = crc0 ^ words[0];
+#if N > 1
+                word1 = crc1 ^ words[1];
+#if N > 2
+                word2 = crc2 ^ words[2];
+#if N > 3
+                word3 = crc3 ^ words[3];
+#if N > 4
+                word4 = crc4 ^ words[4];
+#if N > 5
+                word5 = crc5 ^ words[5];
+#endif
+#endif
+#endif
+#endif
+#endif
+                words += N;
+
+                /* Compute and update the CRC for each word. The loop should
+                   get unrolled. */
+                crc0 = crc_braid_big_table[0][word0 & 0xff];
+#if N > 1
+                crc1 = crc_braid_big_table[0][word1 & 0xff];
+#if N > 2
+                crc2 = crc_braid_big_table[0][word2 & 0xff];
+#if N > 3
+                crc3 = crc_braid_big_table[0][word3 & 0xff];
+#if N > 4
+                crc4 = crc_braid_big_table[0][word4 & 0xff];
+#if N > 5
+                crc5 = crc_braid_big_table[0][word5 & 0xff];
+#endif
+#endif
+#endif
+#endif
+#endif
+                for (k = 1; k < W; k++) {
+                    crc0 ^= crc_braid_big_table[k][(word0 >> (k << 3)) & 0xff];
+#if N > 1
+                    crc1 ^= crc_braid_big_table[k][(word1 >> (k << 3)) & 0xff];
+#if N > 2
+                    crc2 ^= crc_braid_big_table[k][(word2 >> (k << 3)) & 0xff];
+#if N > 3
+                    crc3 ^= crc_braid_big_table[k][(word3 >> (k << 3)) & 0xff];
+#if N > 4
+                    crc4 ^= crc_braid_big_table[k][(word4 >> (k << 3)) & 0xff];
+#if N > 5
+                    crc5 ^= crc_braid_big_table[k][(word5 >> (k << 3)) & 0xff];
+#endif
+#endif
+#endif
+#endif
+#endif
+                }
+            }
+
+            /*
+              Process the last block, combining the CRCs of the N braids at the
+              same time.
+             */
+            comb = crc_word_big(crc0 ^ words[0]);
+#if N > 1
+            comb = crc_word_big(crc1 ^ words[1] ^ comb);
+#if N > 2
+            comb = crc_word_big(crc2 ^ words[2] ^ comb);
+#if N > 3
+            comb = crc_word_big(crc3 ^ words[3] ^ comb);
+#if N > 4
+            comb = crc_word_big(crc4 ^ words[4] ^ comb);
+#if N > 5
+            comb = crc_word_big(crc5 ^ words[5] ^ comb);
+#endif
+#endif
+#endif
+#endif
+#endif
+            words += N;
+            crc = byte_swap(comb);
+        }
+
+        /*
+          Update the pointer to the remaining bytes to process.
+         */
+        buf = (unsigned char const *)words;
+    }
+
+#endif /* W */
+
+    /* Complete the computation of the CRC on any remaining bytes. */
+    while (len >= 8) {
+        len -= 8;
+        crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff];
+        crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff];
+        crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff];
+        crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff];
+        crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff];
+        crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff];
+        crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff];
+        crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff];
+    }
+    while (len) {
+        len--;
+        crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff];
+    }
+
+    /* Return the CRC, post-conditioned. */
+    return crc ^ 0xffffffff;
+}
+
+#endif
+
+/* ========================================================================= */
+unsigned long ZEXPORT crc32(unsigned long crc, const unsigned char FAR *buf,
+                            uInt len) {
+    return crc32_z(crc, buf, len);
+}
+
+/* ========================================================================= */
+uLong ZEXPORT crc32_combine64(uLong crc1, uLong crc2, z_off64_t len2) {
+#ifdef DYNAMIC_CRC_TABLE
+    once(&made, make_crc_table);
+#endif /* DYNAMIC_CRC_TABLE */
+    return multmodp(x2nmodp(len2, 3), crc1) ^ (crc2 & 0xffffffff);
+}
+
+/* ========================================================================= */
+uLong ZEXPORT crc32_combine(uLong crc1, uLong crc2, z_off_t len2) {
+    return crc32_combine64(crc1, crc2, (z_off64_t)len2);
+}
+
+/* ========================================================================= */
+uLong ZEXPORT crc32_combine_gen64(z_off64_t len2) {
+#ifdef DYNAMIC_CRC_TABLE
+    once(&made, make_crc_table);
+#endif /* DYNAMIC_CRC_TABLE */
+    return x2nmodp(len2, 3);
+}
+
+/* ========================================================================= */
+uLong ZEXPORT crc32_combine_gen(z_off_t len2) {
+    return crc32_combine_gen64((z_off64_t)len2);
+}
+
+/* ========================================================================= */
+uLong ZEXPORT crc32_combine_op(uLong crc1, uLong crc2, uLong op) {
+    return multmodp(op, crc1) ^ (crc2 & 0xffffffff);
+}
diff --git a/compat/zlib/crc32.h b/compat/zlib/crc32.h
new file mode 100644
index 0000000..137df68
--- /dev/null
+++ b/compat/zlib/crc32.h
@@ -0,0 +1,9446 @@
+/* crc32.h -- tables for rapid CRC calculation
+ * Generated automatically by crc32.c
+ */
+
+local const z_crc_t FAR crc_table[] = {
+    0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
+    0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
+    0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
+    0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
+    0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
+    0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
+    0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
+    0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
+    0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
+    0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
+    0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
+    0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
+    0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
+    0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
+    0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
+    0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
+    0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
+    0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
+    0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
+    0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
+    0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
+    0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
+    0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
+    0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+    0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
+    0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
+    0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
+    0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
+    0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
+    0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
+    0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
+    0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
+    0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
+    0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
+    0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
+    0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
+    0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
+    0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
+    0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
+    0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
+    0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
+    0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
+    0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
+    0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
+    0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
+    0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
+    0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
+    0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+    0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
+    0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
+    0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
+    0x2d02ef8d};
+
+#ifdef W
+
+#if W == 8
+
+local const z_word_t FAR crc_big_table[] = {
+    0x0000000000000000, 0x9630077700000000, 0x2c610eee00000000,
+    0xba51099900000000, 0x19c46d0700000000, 0x8ff46a7000000000,
+    0x35a563e900000000, 0xa395649e00000000, 0x3288db0e00000000,
+    0xa4b8dc7900000000, 0x1ee9d5e000000000, 0x88d9d29700000000,
+    0x2b4cb60900000000, 0xbd7cb17e00000000, 0x072db8e700000000,
+    0x911dbf9000000000, 0x6410b71d00000000, 0xf220b06a00000000,
+    0x4871b9f300000000, 0xde41be8400000000, 0x7dd4da1a00000000,
+    0xebe4dd6d00000000, 0x51b5d4f400000000, 0xc785d38300000000,
+    0x56986c1300000000, 0xc0a86b6400000000, 0x7af962fd00000000,
+    0xecc9658a00000000, 0x4f5c011400000000, 0xd96c066300000000,
+    0x633d0ffa00000000, 0xf50d088d00000000, 0xc8206e3b00000000,
+    0x5e10694c00000000, 0xe44160d500000000, 0x727167a200000000,
+    0xd1e4033c00000000, 0x47d4044b00000000, 0xfd850dd200000000,
+    0x6bb50aa500000000, 0xfaa8b53500000000, 0x6c98b24200000000,
+    0xd6c9bbdb00000000, 0x40f9bcac00000000, 0xe36cd83200000000,
+    0x755cdf4500000000, 0xcf0dd6dc00000000, 0x593dd1ab00000000,
+    0xac30d92600000000, 0x3a00de5100000000, 0x8051d7c800000000,
+    0x1661d0bf00000000, 0xb5f4b42100000000, 0x23c4b35600000000,
+    0x9995bacf00000000, 0x0fa5bdb800000000, 0x9eb8022800000000,
+    0x0888055f00000000, 0xb2d90cc600000000, 0x24e90bb100000000,
+    0x877c6f2f00000000, 0x114c685800000000, 0xab1d61c100000000,
+    0x3d2d66b600000000, 0x9041dc7600000000, 0x0671db0100000000,
+    0xbc20d29800000000, 0x2a10d5ef00000000, 0x8985b17100000000,
+    0x1fb5b60600000000, 0xa5e4bf9f00000000, 0x33d4b8e800000000,
+    0xa2c9077800000000, 0x34f9000f00000000, 0x8ea8099600000000,
+    0x18980ee100000000, 0xbb0d6a7f00000000, 0x2d3d6d0800000000,
+    0x976c649100000000, 0x015c63e600000000, 0xf4516b6b00000000,
+    0x62616c1c00000000, 0xd830658500000000, 0x4e0062f200000000,
+    0xed95066c00000000, 0x7ba5011b00000000, 0xc1f4088200000000,
+    0x57c40ff500000000, 0xc6d9b06500000000, 0x50e9b71200000000,
+    0xeab8be8b00000000, 0x7c88b9fc00000000, 0xdf1ddd6200000000,
+    0x492dda1500000000, 0xf37cd38c00000000, 0x654cd4fb00000000,
+    0x5861b24d00000000, 0xce51b53a00000000, 0x7400bca300000000,
+    0xe230bbd400000000, 0x41a5df4a00000000, 0xd795d83d00000000,
+    0x6dc4d1a400000000, 0xfbf4d6d300000000, 0x6ae9694300000000,
+    0xfcd96e3400000000, 0x468867ad00000000, 0xd0b860da00000000,
+    0x732d044400000000, 0xe51d033300000000, 0x5f4c0aaa00000000,
+    0xc97c0ddd00000000, 0x3c71055000000000, 0xaa41022700000000,
+    0x10100bbe00000000, 0x86200cc900000000, 0x25b5685700000000,
+    0xb3856f2000000000, 0x09d466b900000000, 0x9fe461ce00000000,
+    0x0ef9de5e00000000, 0x98c9d92900000000, 0x2298d0b000000000,
+    0xb4a8d7c700000000, 0x173db35900000000, 0x810db42e00000000,
+    0x3b5cbdb700000000, 0xad6cbac000000000, 0x2083b8ed00000000,
+    0xb6b3bf9a00000000, 0x0ce2b60300000000, 0x9ad2b17400000000,
+    0x3947d5ea00000000, 0xaf77d29d00000000, 0x1526db0400000000,
+    0x8316dc7300000000, 0x120b63e300000000, 0x843b649400000000,
+    0x3e6a6d0d00000000, 0xa85a6a7a00000000, 0x0bcf0ee400000000,
+    0x9dff099300000000, 0x27ae000a00000000, 0xb19e077d00000000,
+    0x44930ff000000000, 0xd2a3088700000000, 0x68f2011e00000000,
+    0xfec2066900000000, 0x5d5762f700000000, 0xcb67658000000000,
+    0x71366c1900000000, 0xe7066b6e00000000, 0x761bd4fe00000000,
+    0xe02bd38900000000, 0x5a7ada1000000000, 0xcc4add6700000000,
+    0x6fdfb9f900000000, 0xf9efbe8e00000000, 0x43beb71700000000,
+    0xd58eb06000000000, 0xe8a3d6d600000000, 0x7e93d1a100000000,
+    0xc4c2d83800000000, 0x52f2df4f00000000, 0xf167bbd100000000,
+    0x6757bca600000000, 0xdd06b53f00000000, 0x4b36b24800000000,
+    0xda2b0dd800000000, 0x4c1b0aaf00000000, 0xf64a033600000000,
+    0x607a044100000000, 0xc3ef60df00000000, 0x55df67a800000000,
+    0xef8e6e3100000000, 0x79be694600000000, 0x8cb361cb00000000,
+    0x1a8366bc00000000, 0xa0d26f2500000000, 0x36e2685200000000,
+    0x95770ccc00000000, 0x03470bbb00000000, 0xb916022200000000,
+    0x2f26055500000000, 0xbe3bbac500000000, 0x280bbdb200000000,
+    0x925ab42b00000000, 0x046ab35c00000000, 0xa7ffd7c200000000,
+    0x31cfd0b500000000, 0x8b9ed92c00000000, 0x1daede5b00000000,
+    0xb0c2649b00000000, 0x26f263ec00000000, 0x9ca36a7500000000,
+    0x0a936d0200000000, 0xa906099c00000000, 0x3f360eeb00000000,
+    0x8567077200000000, 0x1357000500000000, 0x824abf9500000000,
+    0x147ab8e200000000, 0xae2bb17b00000000, 0x381bb60c00000000,
+    0x9b8ed29200000000, 0x0dbed5e500000000, 0xb7efdc7c00000000,
+    0x21dfdb0b00000000, 0xd4d2d38600000000, 0x42e2d4f100000000,
+    0xf8b3dd6800000000, 0x6e83da1f00000000, 0xcd16be8100000000,
+    0x5b26b9f600000000, 0xe177b06f00000000, 0x7747b71800000000,
+    0xe65a088800000000, 0x706a0fff00000000, 0xca3b066600000000,
+    0x5c0b011100000000, 0xff9e658f00000000, 0x69ae62f800000000,
+    0xd3ff6b6100000000, 0x45cf6c1600000000, 0x78e20aa000000000,
+    0xeed20dd700000000, 0x5483044e00000000, 0xc2b3033900000000,
+    0x612667a700000000, 0xf71660d000000000, 0x4d47694900000000,
+    0xdb776e3e00000000, 0x4a6ad1ae00000000, 0xdc5ad6d900000000,
+    0x660bdf4000000000, 0xf03bd83700000000, 0x53aebca900000000,
+    0xc59ebbde00000000, 0x7fcfb24700000000, 0xe9ffb53000000000,
+    0x1cf2bdbd00000000, 0x8ac2baca00000000, 0x3093b35300000000,
+    0xa6a3b42400000000, 0x0536d0ba00000000, 0x9306d7cd00000000,
+    0x2957de5400000000, 0xbf67d92300000000, 0x2e7a66b300000000,
+    0xb84a61c400000000, 0x021b685d00000000, 0x942b6f2a00000000,
+    0x37be0bb400000000, 0xa18e0cc300000000, 0x1bdf055a00000000,
+    0x8def022d00000000};
+
+#else /* W == 4 */
+
+local const z_word_t FAR crc_big_table[] = {
+    0x00000000, 0x96300777, 0x2c610eee, 0xba510999, 0x19c46d07,
+    0x8ff46a70, 0x35a563e9, 0xa395649e, 0x3288db0e, 0xa4b8dc79,
+    0x1ee9d5e0, 0x88d9d297, 0x2b4cb609, 0xbd7cb17e, 0x072db8e7,
+    0x911dbf90, 0x6410b71d, 0xf220b06a, 0x4871b9f3, 0xde41be84,
+    0x7dd4da1a, 0xebe4dd6d, 0x51b5d4f4, 0xc785d383, 0x56986c13,
+    0xc0a86b64, 0x7af962fd, 0xecc9658a, 0x4f5c0114, 0xd96c0663,
+    0x633d0ffa, 0xf50d088d, 0xc8206e3b, 0x5e10694c, 0xe44160d5,
+    0x727167a2, 0xd1e4033c, 0x47d4044b, 0xfd850dd2, 0x6bb50aa5,
+    0xfaa8b535, 0x6c98b242, 0xd6c9bbdb, 0x40f9bcac, 0xe36cd832,
+    0x755cdf45, 0xcf0dd6dc, 0x593dd1ab, 0xac30d926, 0x3a00de51,
+    0x8051d7c8, 0x1661d0bf, 0xb5f4b421, 0x23c4b356, 0x9995bacf,
+    0x0fa5bdb8, 0x9eb80228, 0x0888055f, 0xb2d90cc6, 0x24e90bb1,
+    0x877c6f2f, 0x114c6858, 0xab1d61c1, 0x3d2d66b6, 0x9041dc76,
+    0x0671db01, 0xbc20d298, 0x2a10d5ef, 0x8985b171, 0x1fb5b606,
+    0xa5e4bf9f, 0x33d4b8e8, 0xa2c90778, 0x34f9000f, 0x8ea80996,
+    0x18980ee1, 0xbb0d6a7f, 0x2d3d6d08, 0x976c6491, 0x015c63e6,
+    0xf4516b6b, 0x62616c1c, 0xd8306585, 0x4e0062f2, 0xed95066c,
+    0x7ba5011b, 0xc1f40882, 0x57c40ff5, 0xc6d9b065, 0x50e9b712,
+    0xeab8be8b, 0x7c88b9fc, 0xdf1ddd62, 0x492dda15, 0xf37cd38c,
+    0x654cd4fb, 0x5861b24d, 0xce51b53a, 0x7400bca3, 0xe230bbd4,
+    0x41a5df4a, 0xd795d83d, 0x6dc4d1a4, 0xfbf4d6d3, 0x6ae96943,
+    0xfcd96e34, 0x468867ad, 0xd0b860da, 0x732d0444, 0xe51d0333,
+    0x5f4c0aaa, 0xc97c0ddd, 0x3c710550, 0xaa410227, 0x10100bbe,
+    0x86200cc9, 0x25b56857, 0xb3856f20, 0x09d466b9, 0x9fe461ce,
+    0x0ef9de5e, 0x98c9d929, 0x2298d0b0, 0xb4a8d7c7, 0x173db359,
+    0x810db42e, 0x3b5cbdb7, 0xad6cbac0, 0x2083b8ed, 0xb6b3bf9a,
+    0x0ce2b603, 0x9ad2b174, 0x3947d5ea, 0xaf77d29d, 0x1526db04,
+    0x8316dc73, 0x120b63e3, 0x843b6494, 0x3e6a6d0d, 0xa85a6a7a,
+    0x0bcf0ee4, 0x9dff0993, 0x27ae000a, 0xb19e077d, 0x44930ff0,
+    0xd2a30887, 0x68f2011e, 0xfec20669, 0x5d5762f7, 0xcb676580,
+    0x71366c19, 0xe7066b6e, 0x761bd4fe, 0xe02bd389, 0x5a7ada10,
+    0xcc4add67, 0x6fdfb9f9, 0xf9efbe8e, 0x43beb717, 0xd58eb060,
+    0xe8a3d6d6, 0x7e93d1a1, 0xc4c2d838, 0x52f2df4f, 0xf167bbd1,
+    0x6757bca6, 0xdd06b53f, 0x4b36b248, 0xda2b0dd8, 0x4c1b0aaf,
+    0xf64a0336, 0x607a0441, 0xc3ef60df, 0x55df67a8, 0xef8e6e31,
+    0x79be6946, 0x8cb361cb, 0x1a8366bc, 0xa0d26f25, 0x36e26852,
+    0x95770ccc, 0x03470bbb, 0xb9160222, 0x2f260555, 0xbe3bbac5,
+    0x280bbdb2, 0x925ab42b, 0x046ab35c, 0xa7ffd7c2, 0x31cfd0b5,
+    0x8b9ed92c, 0x1daede5b, 0xb0c2649b, 0x26f263ec, 0x9ca36a75,
+    0x0a936d02, 0xa906099c, 0x3f360eeb, 0x85670772, 0x13570005,
+    0x824abf95, 0x147ab8e2, 0xae2bb17b, 0x381bb60c, 0x9b8ed292,
+    0x0dbed5e5, 0xb7efdc7c, 0x21dfdb0b, 0xd4d2d386, 0x42e2d4f1,
+    0xf8b3dd68, 0x6e83da1f, 0xcd16be81, 0x5b26b9f6, 0xe177b06f,
+    0x7747b718, 0xe65a0888, 0x706a0fff, 0xca3b0666, 0x5c0b0111,
+    0xff9e658f, 0x69ae62f8, 0xd3ff6b61, 0x45cf6c16, 0x78e20aa0,
+    0xeed20dd7, 0x5483044e, 0xc2b30339, 0x612667a7, 0xf71660d0,
+    0x4d476949, 0xdb776e3e, 0x4a6ad1ae, 0xdc5ad6d9, 0x660bdf40,
+    0xf03bd837, 0x53aebca9, 0xc59ebbde, 0x7fcfb247, 0xe9ffb530,
+    0x1cf2bdbd, 0x8ac2baca, 0x3093b353, 0xa6a3b424, 0x0536d0ba,
+    0x9306d7cd, 0x2957de54, 0xbf67d923, 0x2e7a66b3, 0xb84a61c4,
+    0x021b685d, 0x942b6f2a, 0x37be0bb4, 0xa18e0cc3, 0x1bdf055a,
+    0x8def022d};
+
+#endif
+
+#if N == 1
+
+#if W == 8
+
+local const z_crc_t FAR crc_braid_table[][256] = {
+   {0x00000000, 0xccaa009e, 0x4225077d, 0x8e8f07e3, 0x844a0efa,
+    0x48e00e64, 0xc66f0987, 0x0ac50919, 0xd3e51bb5, 0x1f4f1b2b,
+    0x91c01cc8, 0x5d6a1c56, 0x57af154f, 0x9b0515d1, 0x158a1232,
+    0xd92012ac, 0x7cbb312b, 0xb01131b5, 0x3e9e3656, 0xf23436c8,
+    0xf8f13fd1, 0x345b3f4f, 0xbad438ac, 0x767e3832, 0xaf5e2a9e,
+    0x63f42a00, 0xed7b2de3, 0x21d12d7d, 0x2b142464, 0xe7be24fa,
+    0x69312319, 0xa59b2387, 0xf9766256, 0x35dc62c8, 0xbb53652b,
+    0x77f965b5, 0x7d3c6cac, 0xb1966c32, 0x3f196bd1, 0xf3b36b4f,
+    0x2a9379e3, 0xe639797d, 0x68b67e9e, 0xa41c7e00, 0xaed97719,
+    0x62737787, 0xecfc7064, 0x205670fa, 0x85cd537d, 0x496753e3,
+    0xc7e85400, 0x0b42549e, 0x01875d87, 0xcd2d5d19, 0x43a25afa,
+    0x8f085a64, 0x562848c8, 0x9a824856, 0x140d4fb5, 0xd8a74f2b,
+    0xd2624632, 0x1ec846ac, 0x9047414f, 0x5ced41d1, 0x299dc2ed,
+    0xe537c273, 0x6bb8c590, 0xa712c50e, 0xadd7cc17, 0x617dcc89,
+    0xeff2cb6a, 0x2358cbf4, 0xfa78d958, 0x36d2d9c6, 0xb85dde25,
+    0x74f7debb, 0x7e32d7a2, 0xb298d73c, 0x3c17d0df, 0xf0bdd041,
+    0x5526f3c6, 0x998cf358, 0x1703f4bb, 0xdba9f425, 0xd16cfd3c,
+    0x1dc6fda2, 0x9349fa41, 0x5fe3fadf, 0x86c3e873, 0x4a69e8ed,
+    0xc4e6ef0e, 0x084cef90, 0x0289e689, 0xce23e617, 0x40ace1f4,
+    0x8c06e16a, 0xd0eba0bb, 0x1c41a025, 0x92cea7c6, 0x5e64a758,
+    0x54a1ae41, 0x980baedf, 0x1684a93c, 0xda2ea9a2, 0x030ebb0e,
+    0xcfa4bb90, 0x412bbc73, 0x8d81bced, 0x8744b5f4, 0x4beeb56a,
+    0xc561b289, 0x09cbb217, 0xac509190, 0x60fa910e, 0xee7596ed,
+    0x22df9673, 0x281a9f6a, 0xe4b09ff4, 0x6a3f9817, 0xa6959889,
+    0x7fb58a25, 0xb31f8abb, 0x3d908d58, 0xf13a8dc6, 0xfbff84df,
+    0x37558441, 0xb9da83a2, 0x7570833c, 0x533b85da, 0x9f918544,
+    0x111e82a7, 0xddb48239, 0xd7718b20, 0x1bdb8bbe, 0x95548c5d,
+    0x59fe8cc3, 0x80de9e6f, 0x4c749ef1, 0xc2fb9912, 0x0e51998c,
+    0x04949095, 0xc83e900b, 0x46b197e8, 0x8a1b9776, 0x2f80b4f1,
+    0xe32ab46f, 0x6da5b38c, 0xa10fb312, 0xabcaba0b, 0x6760ba95,
+    0xe9efbd76, 0x2545bde8, 0xfc65af44, 0x30cfafda, 0xbe40a839,
+    0x72eaa8a7, 0x782fa1be, 0xb485a120, 0x3a0aa6c3, 0xf6a0a65d,
+    0xaa4de78c, 0x66e7e712, 0xe868e0f1, 0x24c2e06f, 0x2e07e976,
+    0xe2ade9e8, 0x6c22ee0b, 0xa088ee95, 0x79a8fc39, 0xb502fca7,
+    0x3b8dfb44, 0xf727fbda, 0xfde2f2c3, 0x3148f25d, 0xbfc7f5be,
+    0x736df520, 0xd6f6d6a7, 0x1a5cd639, 0x94d3d1da, 0x5879d144,
+    0x52bcd85d, 0x9e16d8c3, 0x1099df20, 0xdc33dfbe, 0x0513cd12,
+    0xc9b9cd8c, 0x4736ca6f, 0x8b9ccaf1, 0x8159c3e8, 0x4df3c376,
+    0xc37cc495, 0x0fd6c40b, 0x7aa64737, 0xb60c47a9, 0x3883404a,
+    0xf42940d4, 0xfeec49cd, 0x32464953, 0xbcc94eb0, 0x70634e2e,
+    0xa9435c82, 0x65e95c1c, 0xeb665bff, 0x27cc5b61, 0x2d095278,
+    0xe1a352e6, 0x6f2c5505, 0xa386559b, 0x061d761c, 0xcab77682,
+    0x44387161, 0x889271ff, 0x825778e6, 0x4efd7878, 0xc0727f9b,
+    0x0cd87f05, 0xd5f86da9, 0x19526d37, 0x97dd6ad4, 0x5b776a4a,
+    0x51b26353, 0x9d1863cd, 0x1397642e, 0xdf3d64b0, 0x83d02561,
+    0x4f7a25ff, 0xc1f5221c, 0x0d5f2282, 0x079a2b9b, 0xcb302b05,
+    0x45bf2ce6, 0x89152c78, 0x50353ed4, 0x9c9f3e4a, 0x121039a9,
+    0xdeba3937, 0xd47f302e, 0x18d530b0, 0x965a3753, 0x5af037cd,
+    0xff6b144a, 0x33c114d4, 0xbd4e1337, 0x71e413a9, 0x7b211ab0,
+    0xb78b1a2e, 0x39041dcd, 0xf5ae1d53, 0x2c8e0fff, 0xe0240f61,
+    0x6eab0882, 0xa201081c, 0xa8c40105, 0x646e019b, 0xeae10678,
+    0x264b06e6},
+   {0x00000000, 0xa6770bb4, 0x979f1129, 0x31e81a9d, 0xf44f2413,
+    0x52382fa7, 0x63d0353a, 0xc5a73e8e, 0x33ef4e67, 0x959845d3,
+    0xa4705f4e, 0x020754fa, 0xc7a06a74, 0x61d761c0, 0x503f7b5d,
+    0xf64870e9, 0x67de9cce, 0xc1a9977a, 0xf0418de7, 0x56368653,
+    0x9391b8dd, 0x35e6b369, 0x040ea9f4, 0xa279a240, 0x5431d2a9,
+    0xf246d91d, 0xc3aec380, 0x65d9c834, 0xa07ef6ba, 0x0609fd0e,
+    0x37e1e793, 0x9196ec27, 0xcfbd399c, 0x69ca3228, 0x582228b5,
+    0xfe552301, 0x3bf21d8f, 0x9d85163b, 0xac6d0ca6, 0x0a1a0712,
+    0xfc5277fb, 0x5a257c4f, 0x6bcd66d2, 0xcdba6d66, 0x081d53e8,
+    0xae6a585c, 0x9f8242c1, 0x39f54975, 0xa863a552, 0x0e14aee6,
+    0x3ffcb47b, 0x998bbfcf, 0x5c2c8141, 0xfa5b8af5, 0xcbb39068,
+    0x6dc49bdc, 0x9b8ceb35, 0x3dfbe081, 0x0c13fa1c, 0xaa64f1a8,
+    0x6fc3cf26, 0xc9b4c492, 0xf85cde0f, 0x5e2bd5bb, 0x440b7579,
+    0xe27c7ecd, 0xd3946450, 0x75e36fe4, 0xb044516a, 0x16335ade,
+    0x27db4043, 0x81ac4bf7, 0x77e43b1e, 0xd19330aa, 0xe07b2a37,
+    0x460c2183, 0x83ab1f0d, 0x25dc14b9, 0x14340e24, 0xb2430590,
+    0x23d5e9b7, 0x85a2e203, 0xb44af89e, 0x123df32a, 0xd79acda4,
+    0x71edc610, 0x4005dc8d, 0xe672d739, 0x103aa7d0, 0xb64dac64,
+    0x87a5b6f9, 0x21d2bd4d, 0xe47583c3, 0x42028877, 0x73ea92ea,
+    0xd59d995e, 0x8bb64ce5, 0x2dc14751, 0x1c295dcc, 0xba5e5678,
+    0x7ff968f6, 0xd98e6342, 0xe86679df, 0x4e11726b, 0xb8590282,
+    0x1e2e0936, 0x2fc613ab, 0x89b1181f, 0x4c162691, 0xea612d25,
+    0xdb8937b8, 0x7dfe3c0c, 0xec68d02b, 0x4a1fdb9f, 0x7bf7c102,
+    0xdd80cab6, 0x1827f438, 0xbe50ff8c, 0x8fb8e511, 0x29cfeea5,
+    0xdf879e4c, 0x79f095f8, 0x48188f65, 0xee6f84d1, 0x2bc8ba5f,
+    0x8dbfb1eb, 0xbc57ab76, 0x1a20a0c2, 0x8816eaf2, 0x2e61e146,
+    0x1f89fbdb, 0xb9fef06f, 0x7c59cee1, 0xda2ec555, 0xebc6dfc8,
+    0x4db1d47c, 0xbbf9a495, 0x1d8eaf21, 0x2c66b5bc, 0x8a11be08,
+    0x4fb68086, 0xe9c18b32, 0xd82991af, 0x7e5e9a1b, 0xefc8763c,
+    0x49bf7d88, 0x78576715, 0xde206ca1, 0x1b87522f, 0xbdf0599b,
+    0x8c184306, 0x2a6f48b2, 0xdc27385b, 0x7a5033ef, 0x4bb82972,
+    0xedcf22c6, 0x28681c48, 0x8e1f17fc, 0xbff70d61, 0x198006d5,
+    0x47abd36e, 0xe1dcd8da, 0xd034c247, 0x7643c9f3, 0xb3e4f77d,
+    0x1593fcc9, 0x247be654, 0x820cede0, 0x74449d09, 0xd23396bd,
+    0xe3db8c20, 0x45ac8794, 0x800bb91a, 0x267cb2ae, 0x1794a833,
+    0xb1e3a387, 0x20754fa0, 0x86024414, 0xb7ea5e89, 0x119d553d,
+    0xd43a6bb3, 0x724d6007, 0x43a57a9a, 0xe5d2712e, 0x139a01c7,
+    0xb5ed0a73, 0x840510ee, 0x22721b5a, 0xe7d525d4, 0x41a22e60,
+    0x704a34fd, 0xd63d3f49, 0xcc1d9f8b, 0x6a6a943f, 0x5b828ea2,
+    0xfdf58516, 0x3852bb98, 0x9e25b02c, 0xafcdaab1, 0x09baa105,
+    0xfff2d1ec, 0x5985da58, 0x686dc0c5, 0xce1acb71, 0x0bbdf5ff,
+    0xadcafe4b, 0x9c22e4d6, 0x3a55ef62, 0xabc30345, 0x0db408f1,
+    0x3c5c126c, 0x9a2b19d8, 0x5f8c2756, 0xf9fb2ce2, 0xc813367f,
+    0x6e643dcb, 0x982c4d22, 0x3e5b4696, 0x0fb35c0b, 0xa9c457bf,
+    0x6c636931, 0xca146285, 0xfbfc7818, 0x5d8b73ac, 0x03a0a617,
+    0xa5d7ada3, 0x943fb73e, 0x3248bc8a, 0xf7ef8204, 0x519889b0,
+    0x6070932d, 0xc6079899, 0x304fe870, 0x9638e3c4, 0xa7d0f959,
+    0x01a7f2ed, 0xc400cc63, 0x6277c7d7, 0x539fdd4a, 0xf5e8d6fe,
+    0x647e3ad9, 0xc209316d, 0xf3e12bf0, 0x55962044, 0x90311eca,
+    0x3646157e, 0x07ae0fe3, 0xa1d90457, 0x579174be, 0xf1e67f0a,
+    0xc00e6597, 0x66796e23, 0xa3de50ad, 0x05a95b19, 0x34414184,
+    0x92364a30},
+   {0x00000000, 0xcb5cd3a5, 0x4dc8a10b, 0x869472ae, 0x9b914216,
+    0x50cd91b3, 0xd659e31d, 0x1d0530b8, 0xec53826d, 0x270f51c8,
+    0xa19b2366, 0x6ac7f0c3, 0x77c2c07b, 0xbc9e13de, 0x3a0a6170,
+    0xf156b2d5, 0x03d6029b, 0xc88ad13e, 0x4e1ea390, 0x85427035,
+    0x9847408d, 0x531b9328, 0xd58fe186, 0x1ed33223, 0xef8580f6,
+    0x24d95353, 0xa24d21fd, 0x6911f258, 0x7414c2e0, 0xbf481145,
+    0x39dc63eb, 0xf280b04e, 0x07ac0536, 0xccf0d693, 0x4a64a43d,
+    0x81387798, 0x9c3d4720, 0x57619485, 0xd1f5e62b, 0x1aa9358e,
+    0xebff875b, 0x20a354fe, 0xa6372650, 0x6d6bf5f5, 0x706ec54d,
+    0xbb3216e8, 0x3da66446, 0xf6fab7e3, 0x047a07ad, 0xcf26d408,
+    0x49b2a6a6, 0x82ee7503, 0x9feb45bb, 0x54b7961e, 0xd223e4b0,
+    0x197f3715, 0xe82985c0, 0x23755665, 0xa5e124cb, 0x6ebdf76e,
+    0x73b8c7d6, 0xb8e41473, 0x3e7066dd, 0xf52cb578, 0x0f580a6c,
+    0xc404d9c9, 0x4290ab67, 0x89cc78c2, 0x94c9487a, 0x5f959bdf,
+    0xd901e971, 0x125d3ad4, 0xe30b8801, 0x28575ba4, 0xaec3290a,
+    0x659ffaaf, 0x789aca17, 0xb3c619b2, 0x35526b1c, 0xfe0eb8b9,
+    0x0c8e08f7, 0xc7d2db52, 0x4146a9fc, 0x8a1a7a59, 0x971f4ae1,
+    0x5c439944, 0xdad7ebea, 0x118b384f, 0xe0dd8a9a, 0x2b81593f,
+    0xad152b91, 0x6649f834, 0x7b4cc88c, 0xb0101b29, 0x36846987,
+    0xfdd8ba22, 0x08f40f5a, 0xc3a8dcff, 0x453cae51, 0x8e607df4,
+    0x93654d4c, 0x58399ee9, 0xdeadec47, 0x15f13fe2, 0xe4a78d37,
+    0x2ffb5e92, 0xa96f2c3c, 0x6233ff99, 0x7f36cf21, 0xb46a1c84,
+    0x32fe6e2a, 0xf9a2bd8f, 0x0b220dc1, 0xc07ede64, 0x46eaacca,
+    0x8db67f6f, 0x90b34fd7, 0x5bef9c72, 0xdd7beedc, 0x16273d79,
+    0xe7718fac, 0x2c2d5c09, 0xaab92ea7, 0x61e5fd02, 0x7ce0cdba,
+    0xb7bc1e1f, 0x31286cb1, 0xfa74bf14, 0x1eb014d8, 0xd5ecc77d,
+    0x5378b5d3, 0x98246676, 0x852156ce, 0x4e7d856b, 0xc8e9f7c5,
+    0x03b52460, 0xf2e396b5, 0x39bf4510, 0xbf2b37be, 0x7477e41b,
+    0x6972d4a3, 0xa22e0706, 0x24ba75a8, 0xefe6a60d, 0x1d661643,
+    0xd63ac5e6, 0x50aeb748, 0x9bf264ed, 0x86f75455, 0x4dab87f0,
+    0xcb3ff55e, 0x006326fb, 0xf135942e, 0x3a69478b, 0xbcfd3525,
+    0x77a1e680, 0x6aa4d638, 0xa1f8059d, 0x276c7733, 0xec30a496,
+    0x191c11ee, 0xd240c24b, 0x54d4b0e5, 0x9f886340, 0x828d53f8,
+    0x49d1805d, 0xcf45f2f3, 0x04192156, 0xf54f9383, 0x3e134026,
+    0xb8873288, 0x73dbe12d, 0x6eded195, 0xa5820230, 0x2316709e,
+    0xe84aa33b, 0x1aca1375, 0xd196c0d0, 0x5702b27e, 0x9c5e61db,
+    0x815b5163, 0x4a0782c6, 0xcc93f068, 0x07cf23cd, 0xf6999118,
+    0x3dc542bd, 0xbb513013, 0x700de3b6, 0x6d08d30e, 0xa65400ab,
+    0x20c07205, 0xeb9ca1a0, 0x11e81eb4, 0xdab4cd11, 0x5c20bfbf,
+    0x977c6c1a, 0x8a795ca2, 0x41258f07, 0xc7b1fda9, 0x0ced2e0c,
+    0xfdbb9cd9, 0x36e74f7c, 0xb0733dd2, 0x7b2fee77, 0x662adecf,
+    0xad760d6a, 0x2be27fc4, 0xe0beac61, 0x123e1c2f, 0xd962cf8a,
+    0x5ff6bd24, 0x94aa6e81, 0x89af5e39, 0x42f38d9c, 0xc467ff32,
+    0x0f3b2c97, 0xfe6d9e42, 0x35314de7, 0xb3a53f49, 0x78f9ecec,
+    0x65fcdc54, 0xaea00ff1, 0x28347d5f, 0xe368aefa, 0x16441b82,
+    0xdd18c827, 0x5b8cba89, 0x90d0692c, 0x8dd55994, 0x46898a31,
+    0xc01df89f, 0x0b412b3a, 0xfa1799ef, 0x314b4a4a, 0xb7df38e4,
+    0x7c83eb41, 0x6186dbf9, 0xaada085c, 0x2c4e7af2, 0xe712a957,
+    0x15921919, 0xdececabc, 0x585ab812, 0x93066bb7, 0x8e035b0f,
+    0x455f88aa, 0xc3cbfa04, 0x089729a1, 0xf9c19b74, 0x329d48d1,
+    0xb4093a7f, 0x7f55e9da, 0x6250d962, 0xa90c0ac7, 0x2f987869,
+    0xe4c4abcc},
+   {0x00000000, 0x3d6029b0, 0x7ac05360, 0x47a07ad0, 0xf580a6c0,
+    0xc8e08f70, 0x8f40f5a0, 0xb220dc10, 0x30704bc1, 0x0d106271,
+    0x4ab018a1, 0x77d03111, 0xc5f0ed01, 0xf890c4b1, 0xbf30be61,
+    0x825097d1, 0x60e09782, 0x5d80be32, 0x1a20c4e2, 0x2740ed52,
+    0x95603142, 0xa80018f2, 0xefa06222, 0xd2c04b92, 0x5090dc43,
+    0x6df0f5f3, 0x2a508f23, 0x1730a693, 0xa5107a83, 0x98705333,
+    0xdfd029e3, 0xe2b00053, 0xc1c12f04, 0xfca106b4, 0xbb017c64,
+    0x866155d4, 0x344189c4, 0x0921a074, 0x4e81daa4, 0x73e1f314,
+    0xf1b164c5, 0xccd14d75, 0x8b7137a5, 0xb6111e15, 0x0431c205,
+    0x3951ebb5, 0x7ef19165, 0x4391b8d5, 0xa121b886, 0x9c419136,
+    0xdbe1ebe6, 0xe681c256, 0x54a11e46, 0x69c137f6, 0x2e614d26,
+    0x13016496, 0x9151f347, 0xac31daf7, 0xeb91a027, 0xd6f18997,
+    0x64d15587, 0x59b17c37, 0x1e1106e7, 0x23712f57, 0x58f35849,
+    0x659371f9, 0x22330b29, 0x1f532299, 0xad73fe89, 0x9013d739,
+    0xd7b3ade9, 0xead38459, 0x68831388, 0x55e33a38, 0x124340e8,
+    0x2f236958, 0x9d03b548, 0xa0639cf8, 0xe7c3e628, 0xdaa3cf98,
+    0x3813cfcb, 0x0573e67b, 0x42d39cab, 0x7fb3b51b, 0xcd93690b,
+    0xf0f340bb, 0xb7533a6b, 0x8a3313db, 0x0863840a, 0x3503adba,
+    0x72a3d76a, 0x4fc3feda, 0xfde322ca, 0xc0830b7a, 0x872371aa,
+    0xba43581a, 0x9932774d, 0xa4525efd, 0xe3f2242d, 0xde920d9d,
+    0x6cb2d18d, 0x51d2f83d, 0x167282ed, 0x2b12ab5d, 0xa9423c8c,
+    0x9422153c, 0xd3826fec, 0xeee2465c, 0x5cc29a4c, 0x61a2b3fc,
+    0x2602c92c, 0x1b62e09c, 0xf9d2e0cf, 0xc4b2c97f, 0x8312b3af,
+    0xbe729a1f, 0x0c52460f, 0x31326fbf, 0x7692156f, 0x4bf23cdf,
+    0xc9a2ab0e, 0xf4c282be, 0xb362f86e, 0x8e02d1de, 0x3c220dce,
+    0x0142247e, 0x46e25eae, 0x7b82771e, 0xb1e6b092, 0x8c869922,
+    0xcb26e3f2, 0xf646ca42, 0x44661652, 0x79063fe2, 0x3ea64532,
+    0x03c66c82, 0x8196fb53, 0xbcf6d2e3, 0xfb56a833, 0xc6368183,
+    0x74165d93, 0x49767423, 0x0ed60ef3, 0x33b62743, 0xd1062710,
+    0xec660ea0, 0xabc67470, 0x96a65dc0, 0x248681d0, 0x19e6a860,
+    0x5e46d2b0, 0x6326fb00, 0xe1766cd1, 0xdc164561, 0x9bb63fb1,
+    0xa6d61601, 0x14f6ca11, 0x2996e3a1, 0x6e369971, 0x5356b0c1,
+    0x70279f96, 0x4d47b626, 0x0ae7ccf6, 0x3787e546, 0x85a73956,
+    0xb8c710e6, 0xff676a36, 0xc2074386, 0x4057d457, 0x7d37fde7,
+    0x3a978737, 0x07f7ae87, 0xb5d77297, 0x88b75b27, 0xcf1721f7,
+    0xf2770847, 0x10c70814, 0x2da721a4, 0x6a075b74, 0x576772c4,
+    0xe547aed4, 0xd8278764, 0x9f87fdb4, 0xa2e7d404, 0x20b743d5,
+    0x1dd76a65, 0x5a7710b5, 0x67173905, 0xd537e515, 0xe857cca5,
+    0xaff7b675, 0x92979fc5, 0xe915e8db, 0xd475c16b, 0x93d5bbbb,
+    0xaeb5920b, 0x1c954e1b, 0x21f567ab, 0x66551d7b, 0x5b3534cb,
+    0xd965a31a, 0xe4058aaa, 0xa3a5f07a, 0x9ec5d9ca, 0x2ce505da,
+    0x11852c6a, 0x562556ba, 0x6b457f0a, 0x89f57f59, 0xb49556e9,
+    0xf3352c39, 0xce550589, 0x7c75d999, 0x4115f029, 0x06b58af9,
+    0x3bd5a349, 0xb9853498, 0x84e51d28, 0xc34567f8, 0xfe254e48,
+    0x4c059258, 0x7165bbe8, 0x36c5c138, 0x0ba5e888, 0x28d4c7df,
+    0x15b4ee6f, 0x521494bf, 0x6f74bd0f, 0xdd54611f, 0xe03448af,
+    0xa794327f, 0x9af41bcf, 0x18a48c1e, 0x25c4a5ae, 0x6264df7e,
+    0x5f04f6ce, 0xed242ade, 0xd044036e, 0x97e479be, 0xaa84500e,
+    0x4834505d, 0x755479ed, 0x32f4033d, 0x0f942a8d, 0xbdb4f69d,
+    0x80d4df2d, 0xc774a5fd, 0xfa148c4d, 0x78441b9c, 0x4524322c,
+    0x028448fc, 0x3fe4614c, 0x8dc4bd5c, 0xb0a494ec, 0xf704ee3c,
+    0xca64c78c},
+   {0x00000000, 0xb8bc6765, 0xaa09c88b, 0x12b5afee, 0x8f629757,
+    0x37def032, 0x256b5fdc, 0x9dd738b9, 0xc5b428ef, 0x7d084f8a,
+    0x6fbde064, 0xd7018701, 0x4ad6bfb8, 0xf26ad8dd, 0xe0df7733,
+    0x58631056, 0x5019579f, 0xe8a530fa, 0xfa109f14, 0x42acf871,
+    0xdf7bc0c8, 0x67c7a7ad, 0x75720843, 0xcdce6f26, 0x95ad7f70,
+    0x2d111815, 0x3fa4b7fb, 0x8718d09e, 0x1acfe827, 0xa2738f42,
+    0xb0c620ac, 0x087a47c9, 0xa032af3e, 0x188ec85b, 0x0a3b67b5,
+    0xb28700d0, 0x2f503869, 0x97ec5f0c, 0x8559f0e2, 0x3de59787,
+    0x658687d1, 0xdd3ae0b4, 0xcf8f4f5a, 0x7733283f, 0xeae41086,
+    0x525877e3, 0x40edd80d, 0xf851bf68, 0xf02bf8a1, 0x48979fc4,
+    0x5a22302a, 0xe29e574f, 0x7f496ff6, 0xc7f50893, 0xd540a77d,
+    0x6dfcc018, 0x359fd04e, 0x8d23b72b, 0x9f9618c5, 0x272a7fa0,
+    0xbafd4719, 0x0241207c, 0x10f48f92, 0xa848e8f7, 0x9b14583d,
+    0x23a83f58, 0x311d90b6, 0x89a1f7d3, 0x1476cf6a, 0xaccaa80f,
+    0xbe7f07e1, 0x06c36084, 0x5ea070d2, 0xe61c17b7, 0xf4a9b859,
+    0x4c15df3c, 0xd1c2e785, 0x697e80e0, 0x7bcb2f0e, 0xc377486b,
+    0xcb0d0fa2, 0x73b168c7, 0x6104c729, 0xd9b8a04c, 0x446f98f5,
+    0xfcd3ff90, 0xee66507e, 0x56da371b, 0x0eb9274d, 0xb6054028,
+    0xa4b0efc6, 0x1c0c88a3, 0x81dbb01a, 0x3967d77f, 0x2bd27891,
+    0x936e1ff4, 0x3b26f703, 0x839a9066, 0x912f3f88, 0x299358ed,
+    0xb4446054, 0x0cf80731, 0x1e4da8df, 0xa6f1cfba, 0xfe92dfec,
+    0x462eb889, 0x549b1767, 0xec277002, 0x71f048bb, 0xc94c2fde,
+    0xdbf98030, 0x6345e755, 0x6b3fa09c, 0xd383c7f9, 0xc1366817,
+    0x798a0f72, 0xe45d37cb, 0x5ce150ae, 0x4e54ff40, 0xf6e89825,
+    0xae8b8873, 0x1637ef16, 0x048240f8, 0xbc3e279d, 0x21e91f24,
+    0x99557841, 0x8be0d7af, 0x335cb0ca, 0xed59b63b, 0x55e5d15e,
+    0x47507eb0, 0xffec19d5, 0x623b216c, 0xda874609, 0xc832e9e7,
+    0x708e8e82, 0x28ed9ed4, 0x9051f9b1, 0x82e4565f, 0x3a58313a,
+    0xa78f0983, 0x1f336ee6, 0x0d86c108, 0xb53aa66d, 0xbd40e1a4,
+    0x05fc86c1, 0x1749292f, 0xaff54e4a, 0x322276f3, 0x8a9e1196,
+    0x982bbe78, 0x2097d91d, 0x78f4c94b, 0xc048ae2e, 0xd2fd01c0,
+    0x6a4166a5, 0xf7965e1c, 0x4f2a3979, 0x5d9f9697, 0xe523f1f2,
+    0x4d6b1905, 0xf5d77e60, 0xe762d18e, 0x5fdeb6eb, 0xc2098e52,
+    0x7ab5e937, 0x680046d9, 0xd0bc21bc, 0x88df31ea, 0x3063568f,
+    0x22d6f961, 0x9a6a9e04, 0x07bda6bd, 0xbf01c1d8, 0xadb46e36,
+    0x15080953, 0x1d724e9a, 0xa5ce29ff, 0xb77b8611, 0x0fc7e174,
+    0x9210d9cd, 0x2aacbea8, 0x38191146, 0x80a57623, 0xd8c66675,
+    0x607a0110, 0x72cfaefe, 0xca73c99b, 0x57a4f122, 0xef189647,
+    0xfdad39a9, 0x45115ecc, 0x764dee06, 0xcef18963, 0xdc44268d,
+    0x64f841e8, 0xf92f7951, 0x41931e34, 0x5326b1da, 0xeb9ad6bf,
+    0xb3f9c6e9, 0x0b45a18c, 0x19f00e62, 0xa14c6907, 0x3c9b51be,
+    0x842736db, 0x96929935, 0x2e2efe50, 0x2654b999, 0x9ee8defc,
+    0x8c5d7112, 0x34e11677, 0xa9362ece, 0x118a49ab, 0x033fe645,
+    0xbb838120, 0xe3e09176, 0x5b5cf613, 0x49e959fd, 0xf1553e98,
+    0x6c820621, 0xd43e6144, 0xc68bceaa, 0x7e37a9cf, 0xd67f4138,
+    0x6ec3265d, 0x7c7689b3, 0xc4caeed6, 0x591dd66f, 0xe1a1b10a,
+    0xf3141ee4, 0x4ba87981, 0x13cb69d7, 0xab770eb2, 0xb9c2a15c,
+    0x017ec639, 0x9ca9fe80, 0x241599e5, 0x36a0360b, 0x8e1c516e,
+    0x866616a7, 0x3eda71c2, 0x2c6fde2c, 0x94d3b949, 0x090481f0,
+    0xb1b8e695, 0xa30d497b, 0x1bb12e1e, 0x43d23e48, 0xfb6e592d,
+    0xe9dbf6c3, 0x516791a6, 0xccb0a91f, 0x740cce7a, 0x66b96194,
+    0xde0506f1},
+   {0x00000000, 0x01c26a37, 0x0384d46e, 0x0246be59, 0x0709a8dc,
+    0x06cbc2eb, 0x048d7cb2, 0x054f1685, 0x0e1351b8, 0x0fd13b8f,
+    0x0d9785d6, 0x0c55efe1, 0x091af964, 0x08d89353, 0x0a9e2d0a,
+    0x0b5c473d, 0x1c26a370, 0x1de4c947, 0x1fa2771e, 0x1e601d29,
+    0x1b2f0bac, 0x1aed619b, 0x18abdfc2, 0x1969b5f5, 0x1235f2c8,
+    0x13f798ff, 0x11b126a6, 0x10734c91, 0x153c5a14, 0x14fe3023,
+    0x16b88e7a, 0x177ae44d, 0x384d46e0, 0x398f2cd7, 0x3bc9928e,
+    0x3a0bf8b9, 0x3f44ee3c, 0x3e86840b, 0x3cc03a52, 0x3d025065,
+    0x365e1758, 0x379c7d6f, 0x35dac336, 0x3418a901, 0x3157bf84,
+    0x3095d5b3, 0x32d36bea, 0x331101dd, 0x246be590, 0x25a98fa7,
+    0x27ef31fe, 0x262d5bc9, 0x23624d4c, 0x22a0277b, 0x20e69922,
+    0x2124f315, 0x2a78b428, 0x2bbade1f, 0x29fc6046, 0x283e0a71,
+    0x2d711cf4, 0x2cb376c3, 0x2ef5c89a, 0x2f37a2ad, 0x709a8dc0,
+    0x7158e7f7, 0x731e59ae, 0x72dc3399, 0x7793251c, 0x76514f2b,
+    0x7417f172, 0x75d59b45, 0x7e89dc78, 0x7f4bb64f, 0x7d0d0816,
+    0x7ccf6221, 0x798074a4, 0x78421e93, 0x7a04a0ca, 0x7bc6cafd,
+    0x6cbc2eb0, 0x6d7e4487, 0x6f38fade, 0x6efa90e9, 0x6bb5866c,
+    0x6a77ec5b, 0x68315202, 0x69f33835, 0x62af7f08, 0x636d153f,
+    0x612bab66, 0x60e9c151, 0x65a6d7d4, 0x6464bde3, 0x662203ba,
+    0x67e0698d, 0x48d7cb20, 0x4915a117, 0x4b531f4e, 0x4a917579,
+    0x4fde63fc, 0x4e1c09cb, 0x4c5ab792, 0x4d98dda5, 0x46c49a98,
+    0x4706f0af, 0x45404ef6, 0x448224c1, 0x41cd3244, 0x400f5873,
+    0x4249e62a, 0x438b8c1d, 0x54f16850, 0x55330267, 0x5775bc3e,
+    0x56b7d609, 0x53f8c08c, 0x523aaabb, 0x507c14e2, 0x51be7ed5,
+    0x5ae239e8, 0x5b2053df, 0x5966ed86, 0x58a487b1, 0x5deb9134,
+    0x5c29fb03, 0x5e6f455a, 0x5fad2f6d, 0xe1351b80, 0xe0f771b7,
+    0xe2b1cfee, 0xe373a5d9, 0xe63cb35c, 0xe7fed96b, 0xe5b86732,
+    0xe47a0d05, 0xef264a38, 0xeee4200f, 0xeca29e56, 0xed60f461,
+    0xe82fe2e4, 0xe9ed88d3, 0xebab368a, 0xea695cbd, 0xfd13b8f0,
+    0xfcd1d2c7, 0xfe976c9e, 0xff5506a9, 0xfa1a102c, 0xfbd87a1b,
+    0xf99ec442, 0xf85cae75, 0xf300e948, 0xf2c2837f, 0xf0843d26,
+    0xf1465711, 0xf4094194, 0xf5cb2ba3, 0xf78d95fa, 0xf64fffcd,
+    0xd9785d60, 0xd8ba3757, 0xdafc890e, 0xdb3ee339, 0xde71f5bc,
+    0xdfb39f8b, 0xddf521d2, 0xdc374be5, 0xd76b0cd8, 0xd6a966ef,
+    0xd4efd8b6, 0xd52db281, 0xd062a404, 0xd1a0ce33, 0xd3e6706a,
+    0xd2241a5d, 0xc55efe10, 0xc49c9427, 0xc6da2a7e, 0xc7184049,
+    0xc25756cc, 0xc3953cfb, 0xc1d382a2, 0xc011e895, 0xcb4dafa8,
+    0xca8fc59f, 0xc8c97bc6, 0xc90b11f1, 0xcc440774, 0xcd866d43,
+    0xcfc0d31a, 0xce02b92d, 0x91af9640, 0x906dfc77, 0x922b422e,
+    0x93e92819, 0x96a63e9c, 0x976454ab, 0x9522eaf2, 0x94e080c5,
+    0x9fbcc7f8, 0x9e7eadcf, 0x9c381396, 0x9dfa79a1, 0x98b56f24,
+    0x99770513, 0x9b31bb4a, 0x9af3d17d, 0x8d893530, 0x8c4b5f07,
+    0x8e0de15e, 0x8fcf8b69, 0x8a809dec, 0x8b42f7db, 0x89044982,
+    0x88c623b5, 0x839a6488, 0x82580ebf, 0x801eb0e6, 0x81dcdad1,
+    0x8493cc54, 0x8551a663, 0x8717183a, 0x86d5720d, 0xa9e2d0a0,
+    0xa820ba97, 0xaa6604ce, 0xaba46ef9, 0xaeeb787c, 0xaf29124b,
+    0xad6fac12, 0xacadc625, 0xa7f18118, 0xa633eb2f, 0xa4755576,
+    0xa5b73f41, 0xa0f829c4, 0xa13a43f3, 0xa37cfdaa, 0xa2be979d,
+    0xb5c473d0, 0xb40619e7, 0xb640a7be, 0xb782cd89, 0xb2cddb0c,
+    0xb30fb13b, 0xb1490f62, 0xb08b6555, 0xbbd72268, 0xba15485f,
+    0xb853f606, 0xb9919c31, 0xbcde8ab4, 0xbd1ce083, 0xbf5a5eda,
+    0xbe9834ed},
+   {0x00000000, 0x191b3141, 0x32366282, 0x2b2d53c3, 0x646cc504,
+    0x7d77f445, 0x565aa786, 0x4f4196c7, 0xc8d98a08, 0xd1c2bb49,
+    0xfaefe88a, 0xe3f4d9cb, 0xacb54f0c, 0xb5ae7e4d, 0x9e832d8e,
+    0x87981ccf, 0x4ac21251, 0x53d92310, 0x78f470d3, 0x61ef4192,
+    0x2eaed755, 0x37b5e614, 0x1c98b5d7, 0x05838496, 0x821b9859,
+    0x9b00a918, 0xb02dfadb, 0xa936cb9a, 0xe6775d5d, 0xff6c6c1c,
+    0xd4413fdf, 0xcd5a0e9e, 0x958424a2, 0x8c9f15e3, 0xa7b24620,
+    0xbea97761, 0xf1e8e1a6, 0xe8f3d0e7, 0xc3de8324, 0xdac5b265,
+    0x5d5daeaa, 0x44469feb, 0x6f6bcc28, 0x7670fd69, 0x39316bae,
+    0x202a5aef, 0x0b07092c, 0x121c386d, 0xdf4636f3, 0xc65d07b2,
+    0xed705471, 0xf46b6530, 0xbb2af3f7, 0xa231c2b6, 0x891c9175,
+    0x9007a034, 0x179fbcfb, 0x0e848dba, 0x25a9de79, 0x3cb2ef38,
+    0x73f379ff, 0x6ae848be, 0x41c51b7d, 0x58de2a3c, 0xf0794f05,
+    0xe9627e44, 0xc24f2d87, 0xdb541cc6, 0x94158a01, 0x8d0ebb40,
+    0xa623e883, 0xbf38d9c2, 0x38a0c50d, 0x21bbf44c, 0x0a96a78f,
+    0x138d96ce, 0x5ccc0009, 0x45d73148, 0x6efa628b, 0x77e153ca,
+    0xbabb5d54, 0xa3a06c15, 0x888d3fd6, 0x91960e97, 0xded79850,
+    0xc7cca911, 0xece1fad2, 0xf5facb93, 0x7262d75c, 0x6b79e61d,
+    0x4054b5de, 0x594f849f, 0x160e1258, 0x0f152319, 0x243870da,
+    0x3d23419b, 0x65fd6ba7, 0x7ce65ae6, 0x57cb0925, 0x4ed03864,
+    0x0191aea3, 0x188a9fe2, 0x33a7cc21, 0x2abcfd60, 0xad24e1af,
+    0xb43fd0ee, 0x9f12832d, 0x8609b26c, 0xc94824ab, 0xd05315ea,
+    0xfb7e4629, 0xe2657768, 0x2f3f79f6, 0x362448b7, 0x1d091b74,
+    0x04122a35, 0x4b53bcf2, 0x52488db3, 0x7965de70, 0x607eef31,
+    0xe7e6f3fe, 0xfefdc2bf, 0xd5d0917c, 0xcccba03d, 0x838a36fa,
+    0x9a9107bb, 0xb1bc5478, 0xa8a76539, 0x3b83984b, 0x2298a90a,
+    0x09b5fac9, 0x10aecb88, 0x5fef5d4f, 0x46f46c0e, 0x6dd93fcd,
+    0x74c20e8c, 0xf35a1243, 0xea412302, 0xc16c70c1, 0xd8774180,
+    0x9736d747, 0x8e2de606, 0xa500b5c5, 0xbc1b8484, 0x71418a1a,
+    0x685abb5b, 0x4377e898, 0x5a6cd9d9, 0x152d4f1e, 0x0c367e5f,
+    0x271b2d9c, 0x3e001cdd, 0xb9980012, 0xa0833153, 0x8bae6290,
+    0x92b553d1, 0xddf4c516, 0xc4eff457, 0xefc2a794, 0xf6d996d5,
+    0xae07bce9, 0xb71c8da8, 0x9c31de6b, 0x852aef2a, 0xca6b79ed,
+    0xd37048ac, 0xf85d1b6f, 0xe1462a2e, 0x66de36e1, 0x7fc507a0,
+    0x54e85463, 0x4df36522, 0x02b2f3e5, 0x1ba9c2a4, 0x30849167,
+    0x299fa026, 0xe4c5aeb8, 0xfdde9ff9, 0xd6f3cc3a, 0xcfe8fd7b,
+    0x80a96bbc, 0x99b25afd, 0xb29f093e, 0xab84387f, 0x2c1c24b0,
+    0x350715f1, 0x1e2a4632, 0x07317773, 0x4870e1b4, 0x516bd0f5,
+    0x7a468336, 0x635db277, 0xcbfad74e, 0xd2e1e60f, 0xf9ccb5cc,
+    0xe0d7848d, 0xaf96124a, 0xb68d230b, 0x9da070c8, 0x84bb4189,
+    0x03235d46, 0x1a386c07, 0x31153fc4, 0x280e0e85, 0x674f9842,
+    0x7e54a903, 0x5579fac0, 0x4c62cb81, 0x8138c51f, 0x9823f45e,
+    0xb30ea79d, 0xaa1596dc, 0xe554001b, 0xfc4f315a, 0xd7626299,
+    0xce7953d8, 0x49e14f17, 0x50fa7e56, 0x7bd72d95, 0x62cc1cd4,
+    0x2d8d8a13, 0x3496bb52, 0x1fbbe891, 0x06a0d9d0, 0x5e7ef3ec,
+    0x4765c2ad, 0x6c48916e, 0x7553a02f, 0x3a1236e8, 0x230907a9,
+    0x0824546a, 0x113f652b, 0x96a779e4, 0x8fbc48a5, 0xa4911b66,
+    0xbd8a2a27, 0xf2cbbce0, 0xebd08da1, 0xc0fdde62, 0xd9e6ef23,
+    0x14bce1bd, 0x0da7d0fc, 0x268a833f, 0x3f91b27e, 0x70d024b9,
+    0x69cb15f8, 0x42e6463b, 0x5bfd777a, 0xdc656bb5, 0xc57e5af4,
+    0xee530937, 0xf7483876, 0xb809aeb1, 0xa1129ff0, 0x8a3fcc33,
+    0x9324fd72},
+   {0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
+    0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
+    0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
+    0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
+    0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
+    0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
+    0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
+    0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
+    0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
+    0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
+    0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
+    0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
+    0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
+    0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
+    0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
+    0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
+    0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
+    0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
+    0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
+    0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
+    0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
+    0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
+    0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
+    0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+    0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
+    0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
+    0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
+    0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
+    0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
+    0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
+    0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
+    0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
+    0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
+    0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
+    0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
+    0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
+    0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
+    0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
+    0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
+    0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
+    0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
+    0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
+    0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
+    0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
+    0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
+    0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
+    0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
+    0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+    0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
+    0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
+    0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
+    0x2d02ef8d}};
+
+local const z_word_t FAR crc_braid_big_table[][256] = {
+   {0x0000000000000000, 0x9630077700000000, 0x2c610eee00000000,
+    0xba51099900000000, 0x19c46d0700000000, 0x8ff46a7000000000,
+    0x35a563e900000000, 0xa395649e00000000, 0x3288db0e00000000,
+    0xa4b8dc7900000000, 0x1ee9d5e000000000, 0x88d9d29700000000,
+    0x2b4cb60900000000, 0xbd7cb17e00000000, 0x072db8e700000000,
+    0x911dbf9000000000, 0x6410b71d00000000, 0xf220b06a00000000,
+    0x4871b9f300000000, 0xde41be8400000000, 0x7dd4da1a00000000,
+    0xebe4dd6d00000000, 0x51b5d4f400000000, 0xc785d38300000000,
+    0x56986c1300000000, 0xc0a86b6400000000, 0x7af962fd00000000,
+    0xecc9658a00000000, 0x4f5c011400000000, 0xd96c066300000000,
+    0x633d0ffa00000000, 0xf50d088d00000000, 0xc8206e3b00000000,
+    0x5e10694c00000000, 0xe44160d500000000, 0x727167a200000000,
+    0xd1e4033c00000000, 0x47d4044b00000000, 0xfd850dd200000000,
+    0x6bb50aa500000000, 0xfaa8b53500000000, 0x6c98b24200000000,
+    0xd6c9bbdb00000000, 0x40f9bcac00000000, 0xe36cd83200000000,
+    0x755cdf4500000000, 0xcf0dd6dc00000000, 0x593dd1ab00000000,
+    0xac30d92600000000, 0x3a00de5100000000, 0x8051d7c800000000,
+    0x1661d0bf00000000, 0xb5f4b42100000000, 0x23c4b35600000000,
+    0x9995bacf00000000, 0x0fa5bdb800000000, 0x9eb8022800000000,
+    0x0888055f00000000, 0xb2d90cc600000000, 0x24e90bb100000000,
+    0x877c6f2f00000000, 0x114c685800000000, 0xab1d61c100000000,
+    0x3d2d66b600000000, 0x9041dc7600000000, 0x0671db0100000000,
+    0xbc20d29800000000, 0x2a10d5ef00000000, 0x8985b17100000000,
+    0x1fb5b60600000000, 0xa5e4bf9f00000000, 0x33d4b8e800000000,
+    0xa2c9077800000000, 0x34f9000f00000000, 0x8ea8099600000000,
+    0x18980ee100000000, 0xbb0d6a7f00000000, 0x2d3d6d0800000000,
+    0x976c649100000000, 0x015c63e600000000, 0xf4516b6b00000000,
+    0x62616c1c00000000, 0xd830658500000000, 0x4e0062f200000000,
+    0xed95066c00000000, 0x7ba5011b00000000, 0xc1f4088200000000,
+    0x57c40ff500000000, 0xc6d9b06500000000, 0x50e9b71200000000,
+    0xeab8be8b00000000, 0x7c88b9fc00000000, 0xdf1ddd6200000000,
+    0x492dda1500000000, 0xf37cd38c00000000, 0x654cd4fb00000000,
+    0x5861b24d00000000, 0xce51b53a00000000, 0x7400bca300000000,
+    0xe230bbd400000000, 0x41a5df4a00000000, 0xd795d83d00000000,
+    0x6dc4d1a400000000, 0xfbf4d6d300000000, 0x6ae9694300000000,
+    0xfcd96e3400000000, 0x468867ad00000000, 0xd0b860da00000000,
+    0x732d044400000000, 0xe51d033300000000, 0x5f4c0aaa00000000,
+    0xc97c0ddd00000000, 0x3c71055000000000, 0xaa41022700000000,
+    0x10100bbe00000000, 0x86200cc900000000, 0x25b5685700000000,
+    0xb3856f2000000000, 0x09d466b900000000, 0x9fe461ce00000000,
+    0x0ef9de5e00000000, 0x98c9d92900000000, 0x2298d0b000000000,
+    0xb4a8d7c700000000, 0x173db35900000000, 0x810db42e00000000,
+    0x3b5cbdb700000000, 0xad6cbac000000000, 0x2083b8ed00000000,
+    0xb6b3bf9a00000000, 0x0ce2b60300000000, 0x9ad2b17400000000,
+    0x3947d5ea00000000, 0xaf77d29d00000000, 0x1526db0400000000,
+    0x8316dc7300000000, 0x120b63e300000000, 0x843b649400000000,
+    0x3e6a6d0d00000000, 0xa85a6a7a00000000, 0x0bcf0ee400000000,
+    0x9dff099300000000, 0x27ae000a00000000, 0xb19e077d00000000,
+    0x44930ff000000000, 0xd2a3088700000000, 0x68f2011e00000000,
+    0xfec2066900000000, 0x5d5762f700000000, 0xcb67658000000000,
+    0x71366c1900000000, 0xe7066b6e00000000, 0x761bd4fe00000000,
+    0xe02bd38900000000, 0x5a7ada1000000000, 0xcc4add6700000000,
+    0x6fdfb9f900000000, 0xf9efbe8e00000000, 0x43beb71700000000,
+    0xd58eb06000000000, 0xe8a3d6d600000000, 0x7e93d1a100000000,
+    0xc4c2d83800000000, 0x52f2df4f00000000, 0xf167bbd100000000,
+    0x6757bca600000000, 0xdd06b53f00000000, 0x4b36b24800000000,
+    0xda2b0dd800000000, 0x4c1b0aaf00000000, 0xf64a033600000000,
+    0x607a044100000000, 0xc3ef60df00000000, 0x55df67a800000000,
+    0xef8e6e3100000000, 0x79be694600000000, 0x8cb361cb00000000,
+    0x1a8366bc00000000, 0xa0d26f2500000000, 0x36e2685200000000,
+    0x95770ccc00000000, 0x03470bbb00000000, 0xb916022200000000,
+    0x2f26055500000000, 0xbe3bbac500000000, 0x280bbdb200000000,
+    0x925ab42b00000000, 0x046ab35c00000000, 0xa7ffd7c200000000,
+    0x31cfd0b500000000, 0x8b9ed92c00000000, 0x1daede5b00000000,
+    0xb0c2649b00000000, 0x26f263ec00000000, 0x9ca36a7500000000,
+    0x0a936d0200000000, 0xa906099c00000000, 0x3f360eeb00000000,
+    0x8567077200000000, 0x1357000500000000, 0x824abf9500000000,
+    0x147ab8e200000000, 0xae2bb17b00000000, 0x381bb60c00000000,
+    0x9b8ed29200000000, 0x0dbed5e500000000, 0xb7efdc7c00000000,
+    0x21dfdb0b00000000, 0xd4d2d38600000000, 0x42e2d4f100000000,
+    0xf8b3dd6800000000, 0x6e83da1f00000000, 0xcd16be8100000000,
+    0x5b26b9f600000000, 0xe177b06f00000000, 0x7747b71800000000,
+    0xe65a088800000000, 0x706a0fff00000000, 0xca3b066600000000,
+    0x5c0b011100000000, 0xff9e658f00000000, 0x69ae62f800000000,
+    0xd3ff6b6100000000, 0x45cf6c1600000000, 0x78e20aa000000000,
+    0xeed20dd700000000, 0x5483044e00000000, 0xc2b3033900000000,
+    0x612667a700000000, 0xf71660d000000000, 0x4d47694900000000,
+    0xdb776e3e00000000, 0x4a6ad1ae00000000, 0xdc5ad6d900000000,
+    0x660bdf4000000000, 0xf03bd83700000000, 0x53aebca900000000,
+    0xc59ebbde00000000, 0x7fcfb24700000000, 0xe9ffb53000000000,
+    0x1cf2bdbd00000000, 0x8ac2baca00000000, 0x3093b35300000000,
+    0xa6a3b42400000000, 0x0536d0ba00000000, 0x9306d7cd00000000,
+    0x2957de5400000000, 0xbf67d92300000000, 0x2e7a66b300000000,
+    0xb84a61c400000000, 0x021b685d00000000, 0x942b6f2a00000000,
+    0x37be0bb400000000, 0xa18e0cc300000000, 0x1bdf055a00000000,
+    0x8def022d00000000},
+   {0x0000000000000000, 0x41311b1900000000, 0x8262363200000000,
+    0xc3532d2b00000000, 0x04c56c6400000000, 0x45f4777d00000000,
+    0x86a75a5600000000, 0xc796414f00000000, 0x088ad9c800000000,
+    0x49bbc2d100000000, 0x8ae8effa00000000, 0xcbd9f4e300000000,
+    0x0c4fb5ac00000000, 0x4d7eaeb500000000, 0x8e2d839e00000000,
+    0xcf1c988700000000, 0x5112c24a00000000, 0x1023d95300000000,
+    0xd370f47800000000, 0x9241ef6100000000, 0x55d7ae2e00000000,
+    0x14e6b53700000000, 0xd7b5981c00000000, 0x9684830500000000,
+    0x59981b8200000000, 0x18a9009b00000000, 0xdbfa2db000000000,
+    0x9acb36a900000000, 0x5d5d77e600000000, 0x1c6c6cff00000000,
+    0xdf3f41d400000000, 0x9e0e5acd00000000, 0xa224849500000000,
+    0xe3159f8c00000000, 0x2046b2a700000000, 0x6177a9be00000000,
+    0xa6e1e8f100000000, 0xe7d0f3e800000000, 0x2483dec300000000,
+    0x65b2c5da00000000, 0xaaae5d5d00000000, 0xeb9f464400000000,
+    0x28cc6b6f00000000, 0x69fd707600000000, 0xae6b313900000000,
+    0xef5a2a2000000000, 0x2c09070b00000000, 0x6d381c1200000000,
+    0xf33646df00000000, 0xb2075dc600000000, 0x715470ed00000000,
+    0x30656bf400000000, 0xf7f32abb00000000, 0xb6c231a200000000,
+    0x75911c8900000000, 0x34a0079000000000, 0xfbbc9f1700000000,
+    0xba8d840e00000000, 0x79dea92500000000, 0x38efb23c00000000,
+    0xff79f37300000000, 0xbe48e86a00000000, 0x7d1bc54100000000,
+    0x3c2ade5800000000, 0x054f79f000000000, 0x447e62e900000000,
+    0x872d4fc200000000, 0xc61c54db00000000, 0x018a159400000000,
+    0x40bb0e8d00000000, 0x83e823a600000000, 0xc2d938bf00000000,
+    0x0dc5a03800000000, 0x4cf4bb2100000000, 0x8fa7960a00000000,
+    0xce968d1300000000, 0x0900cc5c00000000, 0x4831d74500000000,
+    0x8b62fa6e00000000, 0xca53e17700000000, 0x545dbbba00000000,
+    0x156ca0a300000000, 0xd63f8d8800000000, 0x970e969100000000,
+    0x5098d7de00000000, 0x11a9ccc700000000, 0xd2fae1ec00000000,
+    0x93cbfaf500000000, 0x5cd7627200000000, 0x1de6796b00000000,
+    0xdeb5544000000000, 0x9f844f5900000000, 0x58120e1600000000,
+    0x1923150f00000000, 0xda70382400000000, 0x9b41233d00000000,
+    0xa76bfd6500000000, 0xe65ae67c00000000, 0x2509cb5700000000,
+    0x6438d04e00000000, 0xa3ae910100000000, 0xe29f8a1800000000,
+    0x21cca73300000000, 0x60fdbc2a00000000, 0xafe124ad00000000,
+    0xeed03fb400000000, 0x2d83129f00000000, 0x6cb2098600000000,
+    0xab2448c900000000, 0xea1553d000000000, 0x29467efb00000000,
+    0x687765e200000000, 0xf6793f2f00000000, 0xb748243600000000,
+    0x741b091d00000000, 0x352a120400000000, 0xf2bc534b00000000,
+    0xb38d485200000000, 0x70de657900000000, 0x31ef7e6000000000,
+    0xfef3e6e700000000, 0xbfc2fdfe00000000, 0x7c91d0d500000000,
+    0x3da0cbcc00000000, 0xfa368a8300000000, 0xbb07919a00000000,
+    0x7854bcb100000000, 0x3965a7a800000000, 0x4b98833b00000000,
+    0x0aa9982200000000, 0xc9fab50900000000, 0x88cbae1000000000,
+    0x4f5def5f00000000, 0x0e6cf44600000000, 0xcd3fd96d00000000,
+    0x8c0ec27400000000, 0x43125af300000000, 0x022341ea00000000,
+    0xc1706cc100000000, 0x804177d800000000, 0x47d7369700000000,
+    0x06e62d8e00000000, 0xc5b500a500000000, 0x84841bbc00000000,
+    0x1a8a417100000000, 0x5bbb5a6800000000, 0x98e8774300000000,
+    0xd9d96c5a00000000, 0x1e4f2d1500000000, 0x5f7e360c00000000,
+    0x9c2d1b2700000000, 0xdd1c003e00000000, 0x120098b900000000,
+    0x533183a000000000, 0x9062ae8b00000000, 0xd153b59200000000,
+    0x16c5f4dd00000000, 0x57f4efc400000000, 0x94a7c2ef00000000,
+    0xd596d9f600000000, 0xe9bc07ae00000000, 0xa88d1cb700000000,
+    0x6bde319c00000000, 0x2aef2a8500000000, 0xed796bca00000000,
+    0xac4870d300000000, 0x6f1b5df800000000, 0x2e2a46e100000000,
+    0xe136de6600000000, 0xa007c57f00000000, 0x6354e85400000000,
+    0x2265f34d00000000, 0xe5f3b20200000000, 0xa4c2a91b00000000,
+    0x6791843000000000, 0x26a09f2900000000, 0xb8aec5e400000000,
+    0xf99fdefd00000000, 0x3accf3d600000000, 0x7bfde8cf00000000,
+    0xbc6ba98000000000, 0xfd5ab29900000000, 0x3e099fb200000000,
+    0x7f3884ab00000000, 0xb0241c2c00000000, 0xf115073500000000,
+    0x32462a1e00000000, 0x7377310700000000, 0xb4e1704800000000,
+    0xf5d06b5100000000, 0x3683467a00000000, 0x77b25d6300000000,
+    0x4ed7facb00000000, 0x0fe6e1d200000000, 0xccb5ccf900000000,
+    0x8d84d7e000000000, 0x4a1296af00000000, 0x0b238db600000000,
+    0xc870a09d00000000, 0x8941bb8400000000, 0x465d230300000000,
+    0x076c381a00000000, 0xc43f153100000000, 0x850e0e2800000000,
+    0x42984f6700000000, 0x03a9547e00000000, 0xc0fa795500000000,
+    0x81cb624c00000000, 0x1fc5388100000000, 0x5ef4239800000000,
+    0x9da70eb300000000, 0xdc9615aa00000000, 0x1b0054e500000000,
+    0x5a314ffc00000000, 0x996262d700000000, 0xd85379ce00000000,
+    0x174fe14900000000, 0x567efa5000000000, 0x952dd77b00000000,
+    0xd41ccc6200000000, 0x138a8d2d00000000, 0x52bb963400000000,
+    0x91e8bb1f00000000, 0xd0d9a00600000000, 0xecf37e5e00000000,
+    0xadc2654700000000, 0x6e91486c00000000, 0x2fa0537500000000,
+    0xe836123a00000000, 0xa907092300000000, 0x6a54240800000000,
+    0x2b653f1100000000, 0xe479a79600000000, 0xa548bc8f00000000,
+    0x661b91a400000000, 0x272a8abd00000000, 0xe0bccbf200000000,
+    0xa18dd0eb00000000, 0x62defdc000000000, 0x23efe6d900000000,
+    0xbde1bc1400000000, 0xfcd0a70d00000000, 0x3f838a2600000000,
+    0x7eb2913f00000000, 0xb924d07000000000, 0xf815cb6900000000,
+    0x3b46e64200000000, 0x7a77fd5b00000000, 0xb56b65dc00000000,
+    0xf45a7ec500000000, 0x370953ee00000000, 0x763848f700000000,
+    0xb1ae09b800000000, 0xf09f12a100000000, 0x33cc3f8a00000000,
+    0x72fd249300000000},
+   {0x0000000000000000, 0x376ac20100000000, 0x6ed4840300000000,
+    0x59be460200000000, 0xdca8090700000000, 0xebc2cb0600000000,
+    0xb27c8d0400000000, 0x85164f0500000000, 0xb851130e00000000,
+    0x8f3bd10f00000000, 0xd685970d00000000, 0xe1ef550c00000000,
+    0x64f91a0900000000, 0x5393d80800000000, 0x0a2d9e0a00000000,
+    0x3d475c0b00000000, 0x70a3261c00000000, 0x47c9e41d00000000,
+    0x1e77a21f00000000, 0x291d601e00000000, 0xac0b2f1b00000000,
+    0x9b61ed1a00000000, 0xc2dfab1800000000, 0xf5b5691900000000,
+    0xc8f2351200000000, 0xff98f71300000000, 0xa626b11100000000,
+    0x914c731000000000, 0x145a3c1500000000, 0x2330fe1400000000,
+    0x7a8eb81600000000, 0x4de47a1700000000, 0xe0464d3800000000,
+    0xd72c8f3900000000, 0x8e92c93b00000000, 0xb9f80b3a00000000,
+    0x3cee443f00000000, 0x0b84863e00000000, 0x523ac03c00000000,
+    0x6550023d00000000, 0x58175e3600000000, 0x6f7d9c3700000000,
+    0x36c3da3500000000, 0x01a9183400000000, 0x84bf573100000000,
+    0xb3d5953000000000, 0xea6bd33200000000, 0xdd01113300000000,
+    0x90e56b2400000000, 0xa78fa92500000000, 0xfe31ef2700000000,
+    0xc95b2d2600000000, 0x4c4d622300000000, 0x7b27a02200000000,
+    0x2299e62000000000, 0x15f3242100000000, 0x28b4782a00000000,
+    0x1fdeba2b00000000, 0x4660fc2900000000, 0x710a3e2800000000,
+    0xf41c712d00000000, 0xc376b32c00000000, 0x9ac8f52e00000000,
+    0xada2372f00000000, 0xc08d9a7000000000, 0xf7e7587100000000,
+    0xae591e7300000000, 0x9933dc7200000000, 0x1c25937700000000,
+    0x2b4f517600000000, 0x72f1177400000000, 0x459bd57500000000,
+    0x78dc897e00000000, 0x4fb64b7f00000000, 0x16080d7d00000000,
+    0x2162cf7c00000000, 0xa474807900000000, 0x931e427800000000,
+    0xcaa0047a00000000, 0xfdcac67b00000000, 0xb02ebc6c00000000,
+    0x87447e6d00000000, 0xdefa386f00000000, 0xe990fa6e00000000,
+    0x6c86b56b00000000, 0x5bec776a00000000, 0x0252316800000000,
+    0x3538f36900000000, 0x087faf6200000000, 0x3f156d6300000000,
+    0x66ab2b6100000000, 0x51c1e96000000000, 0xd4d7a66500000000,
+    0xe3bd646400000000, 0xba03226600000000, 0x8d69e06700000000,
+    0x20cbd74800000000, 0x17a1154900000000, 0x4e1f534b00000000,
+    0x7975914a00000000, 0xfc63de4f00000000, 0xcb091c4e00000000,
+    0x92b75a4c00000000, 0xa5dd984d00000000, 0x989ac44600000000,
+    0xaff0064700000000, 0xf64e404500000000, 0xc124824400000000,
+    0x4432cd4100000000, 0x73580f4000000000, 0x2ae6494200000000,
+    0x1d8c8b4300000000, 0x5068f15400000000, 0x6702335500000000,
+    0x3ebc755700000000, 0x09d6b75600000000, 0x8cc0f85300000000,
+    0xbbaa3a5200000000, 0xe2147c5000000000, 0xd57ebe5100000000,
+    0xe839e25a00000000, 0xdf53205b00000000, 0x86ed665900000000,
+    0xb187a45800000000, 0x3491eb5d00000000, 0x03fb295c00000000,
+    0x5a456f5e00000000, 0x6d2fad5f00000000, 0x801b35e100000000,
+    0xb771f7e000000000, 0xeecfb1e200000000, 0xd9a573e300000000,
+    0x5cb33ce600000000, 0x6bd9fee700000000, 0x3267b8e500000000,
+    0x050d7ae400000000, 0x384a26ef00000000, 0x0f20e4ee00000000,
+    0x569ea2ec00000000, 0x61f460ed00000000, 0xe4e22fe800000000,
+    0xd388ede900000000, 0x8a36abeb00000000, 0xbd5c69ea00000000,
+    0xf0b813fd00000000, 0xc7d2d1fc00000000, 0x9e6c97fe00000000,
+    0xa90655ff00000000, 0x2c101afa00000000, 0x1b7ad8fb00000000,
+    0x42c49ef900000000, 0x75ae5cf800000000, 0x48e900f300000000,
+    0x7f83c2f200000000, 0x263d84f000000000, 0x115746f100000000,
+    0x944109f400000000, 0xa32bcbf500000000, 0xfa958df700000000,
+    0xcdff4ff600000000, 0x605d78d900000000, 0x5737bad800000000,
+    0x0e89fcda00000000, 0x39e33edb00000000, 0xbcf571de00000000,
+    0x8b9fb3df00000000, 0xd221f5dd00000000, 0xe54b37dc00000000,
+    0xd80c6bd700000000, 0xef66a9d600000000, 0xb6d8efd400000000,
+    0x81b22dd500000000, 0x04a462d000000000, 0x33cea0d100000000,
+    0x6a70e6d300000000, 0x5d1a24d200000000, 0x10fe5ec500000000,
+    0x27949cc400000000, 0x7e2adac600000000, 0x494018c700000000,
+    0xcc5657c200000000, 0xfb3c95c300000000, 0xa282d3c100000000,
+    0x95e811c000000000, 0xa8af4dcb00000000, 0x9fc58fca00000000,
+    0xc67bc9c800000000, 0xf1110bc900000000, 0x740744cc00000000,
+    0x436d86cd00000000, 0x1ad3c0cf00000000, 0x2db902ce00000000,
+    0x4096af9100000000, 0x77fc6d9000000000, 0x2e422b9200000000,
+    0x1928e99300000000, 0x9c3ea69600000000, 0xab54649700000000,
+    0xf2ea229500000000, 0xc580e09400000000, 0xf8c7bc9f00000000,
+    0xcfad7e9e00000000, 0x9613389c00000000, 0xa179fa9d00000000,
+    0x246fb59800000000, 0x1305779900000000, 0x4abb319b00000000,
+    0x7dd1f39a00000000, 0x3035898d00000000, 0x075f4b8c00000000,
+    0x5ee10d8e00000000, 0x698bcf8f00000000, 0xec9d808a00000000,
+    0xdbf7428b00000000, 0x8249048900000000, 0xb523c68800000000,
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+    0xb48adebc00000000, 0x83e01cbd00000000, 0xda5e5abf00000000,
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+    0xd1489d3200000000, 0x7f3a09b400000000, 0xdae9557f00000000,
+    0x62d9506200000000, 0xc70a0ca900000000, 0x6978982f00000000,
+    0xccabc4e400000000},
+   {0x0000000000000000, 0xb40b77a600000000, 0x29119f9700000000,
+    0x9d1ae83100000000, 0x13244ff400000000, 0xa72f385200000000,
+    0x3a35d06300000000, 0x8e3ea7c500000000, 0x674eef3300000000,
+    0xd345989500000000, 0x4e5f70a400000000, 0xfa54070200000000,
+    0x746aa0c700000000, 0xc061d76100000000, 0x5d7b3f5000000000,
+    0xe97048f600000000, 0xce9cde6700000000, 0x7a97a9c100000000,
+    0xe78d41f000000000, 0x5386365600000000, 0xddb8919300000000,
+    0x69b3e63500000000, 0xf4a90e0400000000, 0x40a279a200000000,
+    0xa9d2315400000000, 0x1dd946f200000000, 0x80c3aec300000000,
+    0x34c8d96500000000, 0xbaf67ea000000000, 0x0efd090600000000,
+    0x93e7e13700000000, 0x27ec969100000000, 0x9c39bdcf00000000,
+    0x2832ca6900000000, 0xb528225800000000, 0x012355fe00000000,
+    0x8f1df23b00000000, 0x3b16859d00000000, 0xa60c6dac00000000,
+    0x12071a0a00000000, 0xfb7752fc00000000, 0x4f7c255a00000000,
+    0xd266cd6b00000000, 0x666dbacd00000000, 0xe8531d0800000000,
+    0x5c586aae00000000, 0xc142829f00000000, 0x7549f53900000000,
+    0x52a563a800000000, 0xe6ae140e00000000, 0x7bb4fc3f00000000,
+    0xcfbf8b9900000000, 0x41812c5c00000000, 0xf58a5bfa00000000,
+    0x6890b3cb00000000, 0xdc9bc46d00000000, 0x35eb8c9b00000000,
+    0x81e0fb3d00000000, 0x1cfa130c00000000, 0xa8f164aa00000000,
+    0x26cfc36f00000000, 0x92c4b4c900000000, 0x0fde5cf800000000,
+    0xbbd52b5e00000000, 0x79750b4400000000, 0xcd7e7ce200000000,
+    0x506494d300000000, 0xe46fe37500000000, 0x6a5144b000000000,
+    0xde5a331600000000, 0x4340db2700000000, 0xf74bac8100000000,
+    0x1e3be47700000000, 0xaa3093d100000000, 0x372a7be000000000,
+    0x83210c4600000000, 0x0d1fab8300000000, 0xb914dc2500000000,
+    0x240e341400000000, 0x900543b200000000, 0xb7e9d52300000000,
+    0x03e2a28500000000, 0x9ef84ab400000000, 0x2af33d1200000000,
+    0xa4cd9ad700000000, 0x10c6ed7100000000, 0x8ddc054000000000,
+    0x39d772e600000000, 0xd0a73a1000000000, 0x64ac4db600000000,
+    0xf9b6a58700000000, 0x4dbdd22100000000, 0xc38375e400000000,
+    0x7788024200000000, 0xea92ea7300000000, 0x5e999dd500000000,
+    0xe54cb68b00000000, 0x5147c12d00000000, 0xcc5d291c00000000,
+    0x78565eba00000000, 0xf668f97f00000000, 0x42638ed900000000,
+    0xdf7966e800000000, 0x6b72114e00000000, 0x820259b800000000,
+    0x36092e1e00000000, 0xab13c62f00000000, 0x1f18b18900000000,
+    0x9126164c00000000, 0x252d61ea00000000, 0xb83789db00000000,
+    0x0c3cfe7d00000000, 0x2bd068ec00000000, 0x9fdb1f4a00000000,
+    0x02c1f77b00000000, 0xb6ca80dd00000000, 0x38f4271800000000,
+    0x8cff50be00000000, 0x11e5b88f00000000, 0xa5eecf2900000000,
+    0x4c9e87df00000000, 0xf895f07900000000, 0x658f184800000000,
+    0xd1846fee00000000, 0x5fbac82b00000000, 0xebb1bf8d00000000,
+    0x76ab57bc00000000, 0xc2a0201a00000000, 0xf2ea168800000000,
+    0x46e1612e00000000, 0xdbfb891f00000000, 0x6ff0feb900000000,
+    0xe1ce597c00000000, 0x55c52eda00000000, 0xc8dfc6eb00000000,
+    0x7cd4b14d00000000, 0x95a4f9bb00000000, 0x21af8e1d00000000,
+    0xbcb5662c00000000, 0x08be118a00000000, 0x8680b64f00000000,
+    0x328bc1e900000000, 0xaf9129d800000000, 0x1b9a5e7e00000000,
+    0x3c76c8ef00000000, 0x887dbf4900000000, 0x1567577800000000,
+    0xa16c20de00000000, 0x2f52871b00000000, 0x9b59f0bd00000000,
+    0x0643188c00000000, 0xb2486f2a00000000, 0x5b3827dc00000000,
+    0xef33507a00000000, 0x7229b84b00000000, 0xc622cfed00000000,
+    0x481c682800000000, 0xfc171f8e00000000, 0x610df7bf00000000,
+    0xd506801900000000, 0x6ed3ab4700000000, 0xdad8dce100000000,
+    0x47c234d000000000, 0xf3c9437600000000, 0x7df7e4b300000000,
+    0xc9fc931500000000, 0x54e67b2400000000, 0xe0ed0c8200000000,
+    0x099d447400000000, 0xbd9633d200000000, 0x208cdbe300000000,
+    0x9487ac4500000000, 0x1ab90b8000000000, 0xaeb27c2600000000,
+    0x33a8941700000000, 0x87a3e3b100000000, 0xa04f752000000000,
+    0x1444028600000000, 0x895eeab700000000, 0x3d559d1100000000,
+    0xb36b3ad400000000, 0x07604d7200000000, 0x9a7aa54300000000,
+    0x2e71d2e500000000, 0xc7019a1300000000, 0x730aedb500000000,
+    0xee10058400000000, 0x5a1b722200000000, 0xd425d5e700000000,
+    0x602ea24100000000, 0xfd344a7000000000, 0x493f3dd600000000,
+    0x8b9f1dcc00000000, 0x3f946a6a00000000, 0xa28e825b00000000,
+    0x1685f5fd00000000, 0x98bb523800000000, 0x2cb0259e00000000,
+    0xb1aacdaf00000000, 0x05a1ba0900000000, 0xecd1f2ff00000000,
+    0x58da855900000000, 0xc5c06d6800000000, 0x71cb1ace00000000,
+    0xfff5bd0b00000000, 0x4bfecaad00000000, 0xd6e4229c00000000,
+    0x62ef553a00000000, 0x4503c3ab00000000, 0xf108b40d00000000,
+    0x6c125c3c00000000, 0xd8192b9a00000000, 0x56278c5f00000000,
+    0xe22cfbf900000000, 0x7f3613c800000000, 0xcb3d646e00000000,
+    0x224d2c9800000000, 0x96465b3e00000000, 0x0b5cb30f00000000,
+    0xbf57c4a900000000, 0x3169636c00000000, 0x856214ca00000000,
+    0x1878fcfb00000000, 0xac738b5d00000000, 0x17a6a00300000000,
+    0xa3add7a500000000, 0x3eb73f9400000000, 0x8abc483200000000,
+    0x0482eff700000000, 0xb089985100000000, 0x2d93706000000000,
+    0x999807c600000000, 0x70e84f3000000000, 0xc4e3389600000000,
+    0x59f9d0a700000000, 0xedf2a70100000000, 0x63cc00c400000000,
+    0xd7c7776200000000, 0x4add9f5300000000, 0xfed6e8f500000000,
+    0xd93a7e6400000000, 0x6d3109c200000000, 0xf02be1f300000000,
+    0x4420965500000000, 0xca1e319000000000, 0x7e15463600000000,
+    0xe30fae0700000000, 0x5704d9a100000000, 0xbe74915700000000,
+    0x0a7fe6f100000000, 0x97650ec000000000, 0x236e796600000000,
+    0xad50dea300000000, 0x195ba90500000000, 0x8441413400000000,
+    0x304a369200000000},
+   {0x0000000000000000, 0x9e00aacc00000000, 0x7d07254200000000,
+    0xe3078f8e00000000, 0xfa0e4a8400000000, 0x640ee04800000000,
+    0x87096fc600000000, 0x1909c50a00000000, 0xb51be5d300000000,
+    0x2b1b4f1f00000000, 0xc81cc09100000000, 0x561c6a5d00000000,
+    0x4f15af5700000000, 0xd115059b00000000, 0x32128a1500000000,
+    0xac1220d900000000, 0x2b31bb7c00000000, 0xb53111b000000000,
+    0x56369e3e00000000, 0xc83634f200000000, 0xd13ff1f800000000,
+    0x4f3f5b3400000000, 0xac38d4ba00000000, 0x32387e7600000000,
+    0x9e2a5eaf00000000, 0x002af46300000000, 0xe32d7bed00000000,
+    0x7d2dd12100000000, 0x6424142b00000000, 0xfa24bee700000000,
+    0x1923316900000000, 0x87239ba500000000, 0x566276f900000000,
+    0xc862dc3500000000, 0x2b6553bb00000000, 0xb565f97700000000,
+    0xac6c3c7d00000000, 0x326c96b100000000, 0xd16b193f00000000,
+    0x4f6bb3f300000000, 0xe379932a00000000, 0x7d7939e600000000,
+    0x9e7eb66800000000, 0x007e1ca400000000, 0x1977d9ae00000000,
+    0x8777736200000000, 0x6470fcec00000000, 0xfa70562000000000,
+    0x7d53cd8500000000, 0xe353674900000000, 0x0054e8c700000000,
+    0x9e54420b00000000, 0x875d870100000000, 0x195d2dcd00000000,
+    0xfa5aa24300000000, 0x645a088f00000000, 0xc848285600000000,
+    0x5648829a00000000, 0xb54f0d1400000000, 0x2b4fa7d800000000,
+    0x324662d200000000, 0xac46c81e00000000, 0x4f41479000000000,
+    0xd141ed5c00000000, 0xedc29d2900000000, 0x73c237e500000000,
+    0x90c5b86b00000000, 0x0ec512a700000000, 0x17ccd7ad00000000,
+    0x89cc7d6100000000, 0x6acbf2ef00000000, 0xf4cb582300000000,
+    0x58d978fa00000000, 0xc6d9d23600000000, 0x25de5db800000000,
+    0xbbdef77400000000, 0xa2d7327e00000000, 0x3cd798b200000000,
+    0xdfd0173c00000000, 0x41d0bdf000000000, 0xc6f3265500000000,
+    0x58f38c9900000000, 0xbbf4031700000000, 0x25f4a9db00000000,
+    0x3cfd6cd100000000, 0xa2fdc61d00000000, 0x41fa499300000000,
+    0xdffae35f00000000, 0x73e8c38600000000, 0xede8694a00000000,
+    0x0eefe6c400000000, 0x90ef4c0800000000, 0x89e6890200000000,
+    0x17e623ce00000000, 0xf4e1ac4000000000, 0x6ae1068c00000000,
+    0xbba0ebd000000000, 0x25a0411c00000000, 0xc6a7ce9200000000,
+    0x58a7645e00000000, 0x41aea15400000000, 0xdfae0b9800000000,
+    0x3ca9841600000000, 0xa2a92eda00000000, 0x0ebb0e0300000000,
+    0x90bba4cf00000000, 0x73bc2b4100000000, 0xedbc818d00000000,
+    0xf4b5448700000000, 0x6ab5ee4b00000000, 0x89b261c500000000,
+    0x17b2cb0900000000, 0x909150ac00000000, 0x0e91fa6000000000,
+    0xed9675ee00000000, 0x7396df2200000000, 0x6a9f1a2800000000,
+    0xf49fb0e400000000, 0x17983f6a00000000, 0x899895a600000000,
+    0x258ab57f00000000, 0xbb8a1fb300000000, 0x588d903d00000000,
+    0xc68d3af100000000, 0xdf84fffb00000000, 0x4184553700000000,
+    0xa283dab900000000, 0x3c83707500000000, 0xda853b5300000000,
+    0x4485919f00000000, 0xa7821e1100000000, 0x3982b4dd00000000,
+    0x208b71d700000000, 0xbe8bdb1b00000000, 0x5d8c549500000000,
+    0xc38cfe5900000000, 0x6f9ede8000000000, 0xf19e744c00000000,
+    0x1299fbc200000000, 0x8c99510e00000000, 0x9590940400000000,
+    0x0b903ec800000000, 0xe897b14600000000, 0x76971b8a00000000,
+    0xf1b4802f00000000, 0x6fb42ae300000000, 0x8cb3a56d00000000,
+    0x12b30fa100000000, 0x0bbacaab00000000, 0x95ba606700000000,
+    0x76bdefe900000000, 0xe8bd452500000000, 0x44af65fc00000000,
+    0xdaafcf3000000000, 0x39a840be00000000, 0xa7a8ea7200000000,
+    0xbea12f7800000000, 0x20a185b400000000, 0xc3a60a3a00000000,
+    0x5da6a0f600000000, 0x8ce74daa00000000, 0x12e7e76600000000,
+    0xf1e068e800000000, 0x6fe0c22400000000, 0x76e9072e00000000,
+    0xe8e9ade200000000, 0x0bee226c00000000, 0x95ee88a000000000,
+    0x39fca87900000000, 0xa7fc02b500000000, 0x44fb8d3b00000000,
+    0xdafb27f700000000, 0xc3f2e2fd00000000, 0x5df2483100000000,
+    0xbef5c7bf00000000, 0x20f56d7300000000, 0xa7d6f6d600000000,
+    0x39d65c1a00000000, 0xdad1d39400000000, 0x44d1795800000000,
+    0x5dd8bc5200000000, 0xc3d8169e00000000, 0x20df991000000000,
+    0xbedf33dc00000000, 0x12cd130500000000, 0x8ccdb9c900000000,
+    0x6fca364700000000, 0xf1ca9c8b00000000, 0xe8c3598100000000,
+    0x76c3f34d00000000, 0x95c47cc300000000, 0x0bc4d60f00000000,
+    0x3747a67a00000000, 0xa9470cb600000000, 0x4a40833800000000,
+    0xd44029f400000000, 0xcd49ecfe00000000, 0x5349463200000000,
+    0xb04ec9bc00000000, 0x2e4e637000000000, 0x825c43a900000000,
+    0x1c5ce96500000000, 0xff5b66eb00000000, 0x615bcc2700000000,
+    0x7852092d00000000, 0xe652a3e100000000, 0x05552c6f00000000,
+    0x9b5586a300000000, 0x1c761d0600000000, 0x8276b7ca00000000,
+    0x6171384400000000, 0xff71928800000000, 0xe678578200000000,
+    0x7878fd4e00000000, 0x9b7f72c000000000, 0x057fd80c00000000,
+    0xa96df8d500000000, 0x376d521900000000, 0xd46add9700000000,
+    0x4a6a775b00000000, 0x5363b25100000000, 0xcd63189d00000000,
+    0x2e64971300000000, 0xb0643ddf00000000, 0x6125d08300000000,
+    0xff257a4f00000000, 0x1c22f5c100000000, 0x82225f0d00000000,
+    0x9b2b9a0700000000, 0x052b30cb00000000, 0xe62cbf4500000000,
+    0x782c158900000000, 0xd43e355000000000, 0x4a3e9f9c00000000,
+    0xa939101200000000, 0x3739bade00000000, 0x2e307fd400000000,
+    0xb030d51800000000, 0x53375a9600000000, 0xcd37f05a00000000,
+    0x4a146bff00000000, 0xd414c13300000000, 0x37134ebd00000000,
+    0xa913e47100000000, 0xb01a217b00000000, 0x2e1a8bb700000000,
+    0xcd1d043900000000, 0x531daef500000000, 0xff0f8e2c00000000,
+    0x610f24e000000000, 0x8208ab6e00000000, 0x1c0801a200000000,
+    0x0501c4a800000000, 0x9b016e6400000000, 0x7806e1ea00000000,
+    0xe6064b2600000000}};
+
+#else /* W == 4 */
+
+local const z_crc_t FAR crc_braid_table[][256] = {
+   {0x00000000, 0xb8bc6765, 0xaa09c88b, 0x12b5afee, 0x8f629757,
+    0x37def032, 0x256b5fdc, 0x9dd738b9, 0xc5b428ef, 0x7d084f8a,
+    0x6fbde064, 0xd7018701, 0x4ad6bfb8, 0xf26ad8dd, 0xe0df7733,
+    0x58631056, 0x5019579f, 0xe8a530fa, 0xfa109f14, 0x42acf871,
+    0xdf7bc0c8, 0x67c7a7ad, 0x75720843, 0xcdce6f26, 0x95ad7f70,
+    0x2d111815, 0x3fa4b7fb, 0x8718d09e, 0x1acfe827, 0xa2738f42,
+    0xb0c620ac, 0x087a47c9, 0xa032af3e, 0x188ec85b, 0x0a3b67b5,
+    0xb28700d0, 0x2f503869, 0x97ec5f0c, 0x8559f0e2, 0x3de59787,
+    0x658687d1, 0xdd3ae0b4, 0xcf8f4f5a, 0x7733283f, 0xeae41086,
+    0x525877e3, 0x40edd80d, 0xf851bf68, 0xf02bf8a1, 0x48979fc4,
+    0x5a22302a, 0xe29e574f, 0x7f496ff6, 0xc7f50893, 0xd540a77d,
+    0x6dfcc018, 0x359fd04e, 0x8d23b72b, 0x9f9618c5, 0x272a7fa0,
+    0xbafd4719, 0x0241207c, 0x10f48f92, 0xa848e8f7, 0x9b14583d,
+    0x23a83f58, 0x311d90b6, 0x89a1f7d3, 0x1476cf6a, 0xaccaa80f,
+    0xbe7f07e1, 0x06c36084, 0x5ea070d2, 0xe61c17b7, 0xf4a9b859,
+    0x4c15df3c, 0xd1c2e785, 0x697e80e0, 0x7bcb2f0e, 0xc377486b,
+    0xcb0d0fa2, 0x73b168c7, 0x6104c729, 0xd9b8a04c, 0x446f98f5,
+    0xfcd3ff90, 0xee66507e, 0x56da371b, 0x0eb9274d, 0xb6054028,
+    0xa4b0efc6, 0x1c0c88a3, 0x81dbb01a, 0x3967d77f, 0x2bd27891,
+    0x936e1ff4, 0x3b26f703, 0x839a9066, 0x912f3f88, 0x299358ed,
+    0xb4446054, 0x0cf80731, 0x1e4da8df, 0xa6f1cfba, 0xfe92dfec,
+    0x462eb889, 0x549b1767, 0xec277002, 0x71f048bb, 0xc94c2fde,
+    0xdbf98030, 0x6345e755, 0x6b3fa09c, 0xd383c7f9, 0xc1366817,
+    0x798a0f72, 0xe45d37cb, 0x5ce150ae, 0x4e54ff40, 0xf6e89825,
+    0xae8b8873, 0x1637ef16, 0x048240f8, 0xbc3e279d, 0x21e91f24,
+    0x99557841, 0x8be0d7af, 0x335cb0ca, 0xed59b63b, 0x55e5d15e,
+    0x47507eb0, 0xffec19d5, 0x623b216c, 0xda874609, 0xc832e9e7,
+    0x708e8e82, 0x28ed9ed4, 0x9051f9b1, 0x82e4565f, 0x3a58313a,
+    0xa78f0983, 0x1f336ee6, 0x0d86c108, 0xb53aa66d, 0xbd40e1a4,
+    0x05fc86c1, 0x1749292f, 0xaff54e4a, 0x322276f3, 0x8a9e1196,
+    0x982bbe78, 0x2097d91d, 0x78f4c94b, 0xc048ae2e, 0xd2fd01c0,
+    0x6a4166a5, 0xf7965e1c, 0x4f2a3979, 0x5d9f9697, 0xe523f1f2,
+    0x4d6b1905, 0xf5d77e60, 0xe762d18e, 0x5fdeb6eb, 0xc2098e52,
+    0x7ab5e937, 0x680046d9, 0xd0bc21bc, 0x88df31ea, 0x3063568f,
+    0x22d6f961, 0x9a6a9e04, 0x07bda6bd, 0xbf01c1d8, 0xadb46e36,
+    0x15080953, 0x1d724e9a, 0xa5ce29ff, 0xb77b8611, 0x0fc7e174,
+    0x9210d9cd, 0x2aacbea8, 0x38191146, 0x80a57623, 0xd8c66675,
+    0x607a0110, 0x72cfaefe, 0xca73c99b, 0x57a4f122, 0xef189647,
+    0xfdad39a9, 0x45115ecc, 0x764dee06, 0xcef18963, 0xdc44268d,
+    0x64f841e8, 0xf92f7951, 0x41931e34, 0x5326b1da, 0xeb9ad6bf,
+    0xb3f9c6e9, 0x0b45a18c, 0x19f00e62, 0xa14c6907, 0x3c9b51be,
+    0x842736db, 0x96929935, 0x2e2efe50, 0x2654b999, 0x9ee8defc,
+    0x8c5d7112, 0x34e11677, 0xa9362ece, 0x118a49ab, 0x033fe645,
+    0xbb838120, 0xe3e09176, 0x5b5cf613, 0x49e959fd, 0xf1553e98,
+    0x6c820621, 0xd43e6144, 0xc68bceaa, 0x7e37a9cf, 0xd67f4138,
+    0x6ec3265d, 0x7c7689b3, 0xc4caeed6, 0x591dd66f, 0xe1a1b10a,
+    0xf3141ee4, 0x4ba87981, 0x13cb69d7, 0xab770eb2, 0xb9c2a15c,
+    0x017ec639, 0x9ca9fe80, 0x241599e5, 0x36a0360b, 0x8e1c516e,
+    0x866616a7, 0x3eda71c2, 0x2c6fde2c, 0x94d3b949, 0x090481f0,
+    0xb1b8e695, 0xa30d497b, 0x1bb12e1e, 0x43d23e48, 0xfb6e592d,
+    0xe9dbf6c3, 0x516791a6, 0xccb0a91f, 0x740cce7a, 0x66b96194,
+    0xde0506f1},
+   {0x00000000, 0x01c26a37, 0x0384d46e, 0x0246be59, 0x0709a8dc,
+    0x06cbc2eb, 0x048d7cb2, 0x054f1685, 0x0e1351b8, 0x0fd13b8f,
+    0x0d9785d6, 0x0c55efe1, 0x091af964, 0x08d89353, 0x0a9e2d0a,
+    0x0b5c473d, 0x1c26a370, 0x1de4c947, 0x1fa2771e, 0x1e601d29,
+    0x1b2f0bac, 0x1aed619b, 0x18abdfc2, 0x1969b5f5, 0x1235f2c8,
+    0x13f798ff, 0x11b126a6, 0x10734c91, 0x153c5a14, 0x14fe3023,
+    0x16b88e7a, 0x177ae44d, 0x384d46e0, 0x398f2cd7, 0x3bc9928e,
+    0x3a0bf8b9, 0x3f44ee3c, 0x3e86840b, 0x3cc03a52, 0x3d025065,
+    0x365e1758, 0x379c7d6f, 0x35dac336, 0x3418a901, 0x3157bf84,
+    0x3095d5b3, 0x32d36bea, 0x331101dd, 0x246be590, 0x25a98fa7,
+    0x27ef31fe, 0x262d5bc9, 0x23624d4c, 0x22a0277b, 0x20e69922,
+    0x2124f315, 0x2a78b428, 0x2bbade1f, 0x29fc6046, 0x283e0a71,
+    0x2d711cf4, 0x2cb376c3, 0x2ef5c89a, 0x2f37a2ad, 0x709a8dc0,
+    0x7158e7f7, 0x731e59ae, 0x72dc3399, 0x7793251c, 0x76514f2b,
+    0x7417f172, 0x75d59b45, 0x7e89dc78, 0x7f4bb64f, 0x7d0d0816,
+    0x7ccf6221, 0x798074a4, 0x78421e93, 0x7a04a0ca, 0x7bc6cafd,
+    0x6cbc2eb0, 0x6d7e4487, 0x6f38fade, 0x6efa90e9, 0x6bb5866c,
+    0x6a77ec5b, 0x68315202, 0x69f33835, 0x62af7f08, 0x636d153f,
+    0x612bab66, 0x60e9c151, 0x65a6d7d4, 0x6464bde3, 0x662203ba,
+    0x67e0698d, 0x48d7cb20, 0x4915a117, 0x4b531f4e, 0x4a917579,
+    0x4fde63fc, 0x4e1c09cb, 0x4c5ab792, 0x4d98dda5, 0x46c49a98,
+    0x4706f0af, 0x45404ef6, 0x448224c1, 0x41cd3244, 0x400f5873,
+    0x4249e62a, 0x438b8c1d, 0x54f16850, 0x55330267, 0x5775bc3e,
+    0x56b7d609, 0x53f8c08c, 0x523aaabb, 0x507c14e2, 0x51be7ed5,
+    0x5ae239e8, 0x5b2053df, 0x5966ed86, 0x58a487b1, 0x5deb9134,
+    0x5c29fb03, 0x5e6f455a, 0x5fad2f6d, 0xe1351b80, 0xe0f771b7,
+    0xe2b1cfee, 0xe373a5d9, 0xe63cb35c, 0xe7fed96b, 0xe5b86732,
+    0xe47a0d05, 0xef264a38, 0xeee4200f, 0xeca29e56, 0xed60f461,
+    0xe82fe2e4, 0xe9ed88d3, 0xebab368a, 0xea695cbd, 0xfd13b8f0,
+    0xfcd1d2c7, 0xfe976c9e, 0xff5506a9, 0xfa1a102c, 0xfbd87a1b,
+    0xf99ec442, 0xf85cae75, 0xf300e948, 0xf2c2837f, 0xf0843d26,
+    0xf1465711, 0xf4094194, 0xf5cb2ba3, 0xf78d95fa, 0xf64fffcd,
+    0xd9785d60, 0xd8ba3757, 0xdafc890e, 0xdb3ee339, 0xde71f5bc,
+    0xdfb39f8b, 0xddf521d2, 0xdc374be5, 0xd76b0cd8, 0xd6a966ef,
+    0xd4efd8b6, 0xd52db281, 0xd062a404, 0xd1a0ce33, 0xd3e6706a,
+    0xd2241a5d, 0xc55efe10, 0xc49c9427, 0xc6da2a7e, 0xc7184049,
+    0xc25756cc, 0xc3953cfb, 0xc1d382a2, 0xc011e895, 0xcb4dafa8,
+    0xca8fc59f, 0xc8c97bc6, 0xc90b11f1, 0xcc440774, 0xcd866d43,
+    0xcfc0d31a, 0xce02b92d, 0x91af9640, 0x906dfc77, 0x922b422e,
+    0x93e92819, 0x96a63e9c, 0x976454ab, 0x9522eaf2, 0x94e080c5,
+    0x9fbcc7f8, 0x9e7eadcf, 0x9c381396, 0x9dfa79a1, 0x98b56f24,
+    0x99770513, 0x9b31bb4a, 0x9af3d17d, 0x8d893530, 0x8c4b5f07,
+    0x8e0de15e, 0x8fcf8b69, 0x8a809dec, 0x8b42f7db, 0x89044982,
+    0x88c623b5, 0x839a6488, 0x82580ebf, 0x801eb0e6, 0x81dcdad1,
+    0x8493cc54, 0x8551a663, 0x8717183a, 0x86d5720d, 0xa9e2d0a0,
+    0xa820ba97, 0xaa6604ce, 0xaba46ef9, 0xaeeb787c, 0xaf29124b,
+    0xad6fac12, 0xacadc625, 0xa7f18118, 0xa633eb2f, 0xa4755576,
+    0xa5b73f41, 0xa0f829c4, 0xa13a43f3, 0xa37cfdaa, 0xa2be979d,
+    0xb5c473d0, 0xb40619e7, 0xb640a7be, 0xb782cd89, 0xb2cddb0c,
+    0xb30fb13b, 0xb1490f62, 0xb08b6555, 0xbbd72268, 0xba15485f,
+    0xb853f606, 0xb9919c31, 0xbcde8ab4, 0xbd1ce083, 0xbf5a5eda,
+    0xbe9834ed},
+   {0x00000000, 0x191b3141, 0x32366282, 0x2b2d53c3, 0x646cc504,
+    0x7d77f445, 0x565aa786, 0x4f4196c7, 0xc8d98a08, 0xd1c2bb49,
+    0xfaefe88a, 0xe3f4d9cb, 0xacb54f0c, 0xb5ae7e4d, 0x9e832d8e,
+    0x87981ccf, 0x4ac21251, 0x53d92310, 0x78f470d3, 0x61ef4192,
+    0x2eaed755, 0x37b5e614, 0x1c98b5d7, 0x05838496, 0x821b9859,
+    0x9b00a918, 0xb02dfadb, 0xa936cb9a, 0xe6775d5d, 0xff6c6c1c,
+    0xd4413fdf, 0xcd5a0e9e, 0x958424a2, 0x8c9f15e3, 0xa7b24620,
+    0xbea97761, 0xf1e8e1a6, 0xe8f3d0e7, 0xc3de8324, 0xdac5b265,
+    0x5d5daeaa, 0x44469feb, 0x6f6bcc28, 0x7670fd69, 0x39316bae,
+    0x202a5aef, 0x0b07092c, 0x121c386d, 0xdf4636f3, 0xc65d07b2,
+    0xed705471, 0xf46b6530, 0xbb2af3f7, 0xa231c2b6, 0x891c9175,
+    0x9007a034, 0x179fbcfb, 0x0e848dba, 0x25a9de79, 0x3cb2ef38,
+    0x73f379ff, 0x6ae848be, 0x41c51b7d, 0x58de2a3c, 0xf0794f05,
+    0xe9627e44, 0xc24f2d87, 0xdb541cc6, 0x94158a01, 0x8d0ebb40,
+    0xa623e883, 0xbf38d9c2, 0x38a0c50d, 0x21bbf44c, 0x0a96a78f,
+    0x138d96ce, 0x5ccc0009, 0x45d73148, 0x6efa628b, 0x77e153ca,
+    0xbabb5d54, 0xa3a06c15, 0x888d3fd6, 0x91960e97, 0xded79850,
+    0xc7cca911, 0xece1fad2, 0xf5facb93, 0x7262d75c, 0x6b79e61d,
+    0x4054b5de, 0x594f849f, 0x160e1258, 0x0f152319, 0x243870da,
+    0x3d23419b, 0x65fd6ba7, 0x7ce65ae6, 0x57cb0925, 0x4ed03864,
+    0x0191aea3, 0x188a9fe2, 0x33a7cc21, 0x2abcfd60, 0xad24e1af,
+    0xb43fd0ee, 0x9f12832d, 0x8609b26c, 0xc94824ab, 0xd05315ea,
+    0xfb7e4629, 0xe2657768, 0x2f3f79f6, 0x362448b7, 0x1d091b74,
+    0x04122a35, 0x4b53bcf2, 0x52488db3, 0x7965de70, 0x607eef31,
+    0xe7e6f3fe, 0xfefdc2bf, 0xd5d0917c, 0xcccba03d, 0x838a36fa,
+    0x9a9107bb, 0xb1bc5478, 0xa8a76539, 0x3b83984b, 0x2298a90a,
+    0x09b5fac9, 0x10aecb88, 0x5fef5d4f, 0x46f46c0e, 0x6dd93fcd,
+    0x74c20e8c, 0xf35a1243, 0xea412302, 0xc16c70c1, 0xd8774180,
+    0x9736d747, 0x8e2de606, 0xa500b5c5, 0xbc1b8484, 0x71418a1a,
+    0x685abb5b, 0x4377e898, 0x5a6cd9d9, 0x152d4f1e, 0x0c367e5f,
+    0x271b2d9c, 0x3e001cdd, 0xb9980012, 0xa0833153, 0x8bae6290,
+    0x92b553d1, 0xddf4c516, 0xc4eff457, 0xefc2a794, 0xf6d996d5,
+    0xae07bce9, 0xb71c8da8, 0x9c31de6b, 0x852aef2a, 0xca6b79ed,
+    0xd37048ac, 0xf85d1b6f, 0xe1462a2e, 0x66de36e1, 0x7fc507a0,
+    0x54e85463, 0x4df36522, 0x02b2f3e5, 0x1ba9c2a4, 0x30849167,
+    0x299fa026, 0xe4c5aeb8, 0xfdde9ff9, 0xd6f3cc3a, 0xcfe8fd7b,
+    0x80a96bbc, 0x99b25afd, 0xb29f093e, 0xab84387f, 0x2c1c24b0,
+    0x350715f1, 0x1e2a4632, 0x07317773, 0x4870e1b4, 0x516bd0f5,
+    0x7a468336, 0x635db277, 0xcbfad74e, 0xd2e1e60f, 0xf9ccb5cc,
+    0xe0d7848d, 0xaf96124a, 0xb68d230b, 0x9da070c8, 0x84bb4189,
+    0x03235d46, 0x1a386c07, 0x31153fc4, 0x280e0e85, 0x674f9842,
+    0x7e54a903, 0x5579fac0, 0x4c62cb81, 0x8138c51f, 0x9823f45e,
+    0xb30ea79d, 0xaa1596dc, 0xe554001b, 0xfc4f315a, 0xd7626299,
+    0xce7953d8, 0x49e14f17, 0x50fa7e56, 0x7bd72d95, 0x62cc1cd4,
+    0x2d8d8a13, 0x3496bb52, 0x1fbbe891, 0x06a0d9d0, 0x5e7ef3ec,
+    0x4765c2ad, 0x6c48916e, 0x7553a02f, 0x3a1236e8, 0x230907a9,
+    0x0824546a, 0x113f652b, 0x96a779e4, 0x8fbc48a5, 0xa4911b66,
+    0xbd8a2a27, 0xf2cbbce0, 0xebd08da1, 0xc0fdde62, 0xd9e6ef23,
+    0x14bce1bd, 0x0da7d0fc, 0x268a833f, 0x3f91b27e, 0x70d024b9,
+    0x69cb15f8, 0x42e6463b, 0x5bfd777a, 0xdc656bb5, 0xc57e5af4,
+    0xee530937, 0xf7483876, 0xb809aeb1, 0xa1129ff0, 0x8a3fcc33,
+    0x9324fd72},
+   {0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
+    0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
+    0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
+    0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
+    0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
+    0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
+    0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
+    0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
+    0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
+    0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
+    0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
+    0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
+    0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
+    0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
+    0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
+    0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
+    0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
+    0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
+    0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
+    0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
+    0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
+    0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
+    0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
+    0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+    0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
+    0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
+    0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
+    0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
+    0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
+    0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
+    0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
+    0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
+    0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
+    0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
+    0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
+    0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
+    0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
+    0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
+    0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
+    0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
+    0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
+    0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
+    0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
+    0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
+    0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
+    0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
+    0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
+    0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+    0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
+    0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
+    0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
+    0x2d02ef8d}};
+
+local const z_word_t FAR crc_braid_big_table[][256] = {
+   {0x00000000, 0x96300777, 0x2c610eee, 0xba510999, 0x19c46d07,
+    0x8ff46a70, 0x35a563e9, 0xa395649e, 0x3288db0e, 0xa4b8dc79,
+    0x1ee9d5e0, 0x88d9d297, 0x2b4cb609, 0xbd7cb17e, 0x072db8e7,
+    0x911dbf90, 0x6410b71d, 0xf220b06a, 0x4871b9f3, 0xde41be84,
+    0x7dd4da1a, 0xebe4dd6d, 0x51b5d4f4, 0xc785d383, 0x56986c13,
+    0xc0a86b64, 0x7af962fd, 0xecc9658a, 0x4f5c0114, 0xd96c0663,
+    0x633d0ffa, 0xf50d088d, 0xc8206e3b, 0x5e10694c, 0xe44160d5,
+    0x727167a2, 0xd1e4033c, 0x47d4044b, 0xfd850dd2, 0x6bb50aa5,
+    0xfaa8b535, 0x6c98b242, 0xd6c9bbdb, 0x40f9bcac, 0xe36cd832,
+    0x755cdf45, 0xcf0dd6dc, 0x593dd1ab, 0xac30d926, 0x3a00de51,
+    0x8051d7c8, 0x1661d0bf, 0xb5f4b421, 0x23c4b356, 0x9995bacf,
+    0x0fa5bdb8, 0x9eb80228, 0x0888055f, 0xb2d90cc6, 0x24e90bb1,
+    0x877c6f2f, 0x114c6858, 0xab1d61c1, 0x3d2d66b6, 0x9041dc76,
+    0x0671db01, 0xbc20d298, 0x2a10d5ef, 0x8985b171, 0x1fb5b606,
+    0xa5e4bf9f, 0x33d4b8e8, 0xa2c90778, 0x34f9000f, 0x8ea80996,
+    0x18980ee1, 0xbb0d6a7f, 0x2d3d6d08, 0x976c6491, 0x015c63e6,
+    0xf4516b6b, 0x62616c1c, 0xd8306585, 0x4e0062f2, 0xed95066c,
+    0x7ba5011b, 0xc1f40882, 0x57c40ff5, 0xc6d9b065, 0x50e9b712,
+    0xeab8be8b, 0x7c88b9fc, 0xdf1ddd62, 0x492dda15, 0xf37cd38c,
+    0x654cd4fb, 0x5861b24d, 0xce51b53a, 0x7400bca3, 0xe230bbd4,
+    0x41a5df4a, 0xd795d83d, 0x6dc4d1a4, 0xfbf4d6d3, 0x6ae96943,
+    0xfcd96e34, 0x468867ad, 0xd0b860da, 0x732d0444, 0xe51d0333,
+    0x5f4c0aaa, 0xc97c0ddd, 0x3c710550, 0xaa410227, 0x10100bbe,
+    0x86200cc9, 0x25b56857, 0xb3856f20, 0x09d466b9, 0x9fe461ce,
+    0x0ef9de5e, 0x98c9d929, 0x2298d0b0, 0xb4a8d7c7, 0x173db359,
+    0x810db42e, 0x3b5cbdb7, 0xad6cbac0, 0x2083b8ed, 0xb6b3bf9a,
+    0x0ce2b603, 0x9ad2b174, 0x3947d5ea, 0xaf77d29d, 0x1526db04,
+    0x8316dc73, 0x120b63e3, 0x843b6494, 0x3e6a6d0d, 0xa85a6a7a,
+    0x0bcf0ee4, 0x9dff0993, 0x27ae000a, 0xb19e077d, 0x44930ff0,
+    0xd2a30887, 0x68f2011e, 0xfec20669, 0x5d5762f7, 0xcb676580,
+    0x71366c19, 0xe7066b6e, 0x761bd4fe, 0xe02bd389, 0x5a7ada10,
+    0xcc4add67, 0x6fdfb9f9, 0xf9efbe8e, 0x43beb717, 0xd58eb060,
+    0xe8a3d6d6, 0x7e93d1a1, 0xc4c2d838, 0x52f2df4f, 0xf167bbd1,
+    0x6757bca6, 0xdd06b53f, 0x4b36b248, 0xda2b0dd8, 0x4c1b0aaf,
+    0xf64a0336, 0x607a0441, 0xc3ef60df, 0x55df67a8, 0xef8e6e31,
+    0x79be6946, 0x8cb361cb, 0x1a8366bc, 0xa0d26f25, 0x36e26852,
+    0x95770ccc, 0x03470bbb, 0xb9160222, 0x2f260555, 0xbe3bbac5,
+    0x280bbdb2, 0x925ab42b, 0x046ab35c, 0xa7ffd7c2, 0x31cfd0b5,
+    0x8b9ed92c, 0x1daede5b, 0xb0c2649b, 0x26f263ec, 0x9ca36a75,
+    0x0a936d02, 0xa906099c, 0x3f360eeb, 0x85670772, 0x13570005,
+    0x824abf95, 0x147ab8e2, 0xae2bb17b, 0x381bb60c, 0x9b8ed292,
+    0x0dbed5e5, 0xb7efdc7c, 0x21dfdb0b, 0xd4d2d386, 0x42e2d4f1,
+    0xf8b3dd68, 0x6e83da1f, 0xcd16be81, 0x5b26b9f6, 0xe177b06f,
+    0x7747b718, 0xe65a0888, 0x706a0fff, 0xca3b0666, 0x5c0b0111,
+    0xff9e658f, 0x69ae62f8, 0xd3ff6b61, 0x45cf6c16, 0x78e20aa0,
+    0xeed20dd7, 0x5483044e, 0xc2b30339, 0x612667a7, 0xf71660d0,
+    0x4d476949, 0xdb776e3e, 0x4a6ad1ae, 0xdc5ad6d9, 0x660bdf40,
+    0xf03bd837, 0x53aebca9, 0xc59ebbde, 0x7fcfb247, 0xe9ffb530,
+    0x1cf2bdbd, 0x8ac2baca, 0x3093b353, 0xa6a3b424, 0x0536d0ba,
+    0x9306d7cd, 0x2957de54, 0xbf67d923, 0x2e7a66b3, 0xb84a61c4,
+    0x021b685d, 0x942b6f2a, 0x37be0bb4, 0xa18e0cc3, 0x1bdf055a,
+    0x8def022d},
+   {0x00000000, 0x41311b19, 0x82623632, 0xc3532d2b, 0x04c56c64,
+    0x45f4777d, 0x86a75a56, 0xc796414f, 0x088ad9c8, 0x49bbc2d1,
+    0x8ae8effa, 0xcbd9f4e3, 0x0c4fb5ac, 0x4d7eaeb5, 0x8e2d839e,
+    0xcf1c9887, 0x5112c24a, 0x1023d953, 0xd370f478, 0x9241ef61,
+    0x55d7ae2e, 0x14e6b537, 0xd7b5981c, 0x96848305, 0x59981b82,
+    0x18a9009b, 0xdbfa2db0, 0x9acb36a9, 0x5d5d77e6, 0x1c6c6cff,
+    0xdf3f41d4, 0x9e0e5acd, 0xa2248495, 0xe3159f8c, 0x2046b2a7,
+    0x6177a9be, 0xa6e1e8f1, 0xe7d0f3e8, 0x2483dec3, 0x65b2c5da,
+    0xaaae5d5d, 0xeb9f4644, 0x28cc6b6f, 0x69fd7076, 0xae6b3139,
+    0xef5a2a20, 0x2c09070b, 0x6d381c12, 0xf33646df, 0xb2075dc6,
+    0x715470ed, 0x30656bf4, 0xf7f32abb, 0xb6c231a2, 0x75911c89,
+    0x34a00790, 0xfbbc9f17, 0xba8d840e, 0x79dea925, 0x38efb23c,
+    0xff79f373, 0xbe48e86a, 0x7d1bc541, 0x3c2ade58, 0x054f79f0,
+    0x447e62e9, 0x872d4fc2, 0xc61c54db, 0x018a1594, 0x40bb0e8d,
+    0x83e823a6, 0xc2d938bf, 0x0dc5a038, 0x4cf4bb21, 0x8fa7960a,
+    0xce968d13, 0x0900cc5c, 0x4831d745, 0x8b62fa6e, 0xca53e177,
+    0x545dbbba, 0x156ca0a3, 0xd63f8d88, 0x970e9691, 0x5098d7de,
+    0x11a9ccc7, 0xd2fae1ec, 0x93cbfaf5, 0x5cd76272, 0x1de6796b,
+    0xdeb55440, 0x9f844f59, 0x58120e16, 0x1923150f, 0xda703824,
+    0x9b41233d, 0xa76bfd65, 0xe65ae67c, 0x2509cb57, 0x6438d04e,
+    0xa3ae9101, 0xe29f8a18, 0x21cca733, 0x60fdbc2a, 0xafe124ad,
+    0xeed03fb4, 0x2d83129f, 0x6cb20986, 0xab2448c9, 0xea1553d0,
+    0x29467efb, 0x687765e2, 0xf6793f2f, 0xb7482436, 0x741b091d,
+    0x352a1204, 0xf2bc534b, 0xb38d4852, 0x70de6579, 0x31ef7e60,
+    0xfef3e6e7, 0xbfc2fdfe, 0x7c91d0d5, 0x3da0cbcc, 0xfa368a83,
+    0xbb07919a, 0x7854bcb1, 0x3965a7a8, 0x4b98833b, 0x0aa99822,
+    0xc9fab509, 0x88cbae10, 0x4f5def5f, 0x0e6cf446, 0xcd3fd96d,
+    0x8c0ec274, 0x43125af3, 0x022341ea, 0xc1706cc1, 0x804177d8,
+    0x47d73697, 0x06e62d8e, 0xc5b500a5, 0x84841bbc, 0x1a8a4171,
+    0x5bbb5a68, 0x98e87743, 0xd9d96c5a, 0x1e4f2d15, 0x5f7e360c,
+    0x9c2d1b27, 0xdd1c003e, 0x120098b9, 0x533183a0, 0x9062ae8b,
+    0xd153b592, 0x16c5f4dd, 0x57f4efc4, 0x94a7c2ef, 0xd596d9f6,
+    0xe9bc07ae, 0xa88d1cb7, 0x6bde319c, 0x2aef2a85, 0xed796bca,
+    0xac4870d3, 0x6f1b5df8, 0x2e2a46e1, 0xe136de66, 0xa007c57f,
+    0x6354e854, 0x2265f34d, 0xe5f3b202, 0xa4c2a91b, 0x67918430,
+    0x26a09f29, 0xb8aec5e4, 0xf99fdefd, 0x3accf3d6, 0x7bfde8cf,
+    0xbc6ba980, 0xfd5ab299, 0x3e099fb2, 0x7f3884ab, 0xb0241c2c,
+    0xf1150735, 0x32462a1e, 0x73773107, 0xb4e17048, 0xf5d06b51,
+    0x3683467a, 0x77b25d63, 0x4ed7facb, 0x0fe6e1d2, 0xccb5ccf9,
+    0x8d84d7e0, 0x4a1296af, 0x0b238db6, 0xc870a09d, 0x8941bb84,
+    0x465d2303, 0x076c381a, 0xc43f1531, 0x850e0e28, 0x42984f67,
+    0x03a9547e, 0xc0fa7955, 0x81cb624c, 0x1fc53881, 0x5ef42398,
+    0x9da70eb3, 0xdc9615aa, 0x1b0054e5, 0x5a314ffc, 0x996262d7,
+    0xd85379ce, 0x174fe149, 0x567efa50, 0x952dd77b, 0xd41ccc62,
+    0x138a8d2d, 0x52bb9634, 0x91e8bb1f, 0xd0d9a006, 0xecf37e5e,
+    0xadc26547, 0x6e91486c, 0x2fa05375, 0xe836123a, 0xa9070923,
+    0x6a542408, 0x2b653f11, 0xe479a796, 0xa548bc8f, 0x661b91a4,
+    0x272a8abd, 0xe0bccbf2, 0xa18dd0eb, 0x62defdc0, 0x23efe6d9,
+    0xbde1bc14, 0xfcd0a70d, 0x3f838a26, 0x7eb2913f, 0xb924d070,
+    0xf815cb69, 0x3b46e642, 0x7a77fd5b, 0xb56b65dc, 0xf45a7ec5,
+    0x370953ee, 0x763848f7, 0xb1ae09b8, 0xf09f12a1, 0x33cc3f8a,
+    0x72fd2493},
+   {0x00000000, 0x376ac201, 0x6ed48403, 0x59be4602, 0xdca80907,
+    0xebc2cb06, 0xb27c8d04, 0x85164f05, 0xb851130e, 0x8f3bd10f,
+    0xd685970d, 0xe1ef550c, 0x64f91a09, 0x5393d808, 0x0a2d9e0a,
+    0x3d475c0b, 0x70a3261c, 0x47c9e41d, 0x1e77a21f, 0x291d601e,
+    0xac0b2f1b, 0x9b61ed1a, 0xc2dfab18, 0xf5b56919, 0xc8f23512,
+    0xff98f713, 0xa626b111, 0x914c7310, 0x145a3c15, 0x2330fe14,
+    0x7a8eb816, 0x4de47a17, 0xe0464d38, 0xd72c8f39, 0x8e92c93b,
+    0xb9f80b3a, 0x3cee443f, 0x0b84863e, 0x523ac03c, 0x6550023d,
+    0x58175e36, 0x6f7d9c37, 0x36c3da35, 0x01a91834, 0x84bf5731,
+    0xb3d59530, 0xea6bd332, 0xdd011133, 0x90e56b24, 0xa78fa925,
+    0xfe31ef27, 0xc95b2d26, 0x4c4d6223, 0x7b27a022, 0x2299e620,
+    0x15f32421, 0x28b4782a, 0x1fdeba2b, 0x4660fc29, 0x710a3e28,
+    0xf41c712d, 0xc376b32c, 0x9ac8f52e, 0xada2372f, 0xc08d9a70,
+    0xf7e75871, 0xae591e73, 0x9933dc72, 0x1c259377, 0x2b4f5176,
+    0x72f11774, 0x459bd575, 0x78dc897e, 0x4fb64b7f, 0x16080d7d,
+    0x2162cf7c, 0xa4748079, 0x931e4278, 0xcaa0047a, 0xfdcac67b,
+    0xb02ebc6c, 0x87447e6d, 0xdefa386f, 0xe990fa6e, 0x6c86b56b,
+    0x5bec776a, 0x02523168, 0x3538f369, 0x087faf62, 0x3f156d63,
+    0x66ab2b61, 0x51c1e960, 0xd4d7a665, 0xe3bd6464, 0xba032266,
+    0x8d69e067, 0x20cbd748, 0x17a11549, 0x4e1f534b, 0x7975914a,
+    0xfc63de4f, 0xcb091c4e, 0x92b75a4c, 0xa5dd984d, 0x989ac446,
+    0xaff00647, 0xf64e4045, 0xc1248244, 0x4432cd41, 0x73580f40,
+    0x2ae64942, 0x1d8c8b43, 0x5068f154, 0x67023355, 0x3ebc7557,
+    0x09d6b756, 0x8cc0f853, 0xbbaa3a52, 0xe2147c50, 0xd57ebe51,
+    0xe839e25a, 0xdf53205b, 0x86ed6659, 0xb187a458, 0x3491eb5d,
+    0x03fb295c, 0x5a456f5e, 0x6d2fad5f, 0x801b35e1, 0xb771f7e0,
+    0xeecfb1e2, 0xd9a573e3, 0x5cb33ce6, 0x6bd9fee7, 0x3267b8e5,
+    0x050d7ae4, 0x384a26ef, 0x0f20e4ee, 0x569ea2ec, 0x61f460ed,
+    0xe4e22fe8, 0xd388ede9, 0x8a36abeb, 0xbd5c69ea, 0xf0b813fd,
+    0xc7d2d1fc, 0x9e6c97fe, 0xa90655ff, 0x2c101afa, 0x1b7ad8fb,
+    0x42c49ef9, 0x75ae5cf8, 0x48e900f3, 0x7f83c2f2, 0x263d84f0,
+    0x115746f1, 0x944109f4, 0xa32bcbf5, 0xfa958df7, 0xcdff4ff6,
+    0x605d78d9, 0x5737bad8, 0x0e89fcda, 0x39e33edb, 0xbcf571de,
+    0x8b9fb3df, 0xd221f5dd, 0xe54b37dc, 0xd80c6bd7, 0xef66a9d6,
+    0xb6d8efd4, 0x81b22dd5, 0x04a462d0, 0x33cea0d1, 0x6a70e6d3,
+    0x5d1a24d2, 0x10fe5ec5, 0x27949cc4, 0x7e2adac6, 0x494018c7,
+    0xcc5657c2, 0xfb3c95c3, 0xa282d3c1, 0x95e811c0, 0xa8af4dcb,
+    0x9fc58fca, 0xc67bc9c8, 0xf1110bc9, 0x740744cc, 0x436d86cd,
+    0x1ad3c0cf, 0x2db902ce, 0x4096af91, 0x77fc6d90, 0x2e422b92,
+    0x1928e993, 0x9c3ea696, 0xab546497, 0xf2ea2295, 0xc580e094,
+    0xf8c7bc9f, 0xcfad7e9e, 0x9613389c, 0xa179fa9d, 0x246fb598,
+    0x13057799, 0x4abb319b, 0x7dd1f39a, 0x3035898d, 0x075f4b8c,
+    0x5ee10d8e, 0x698bcf8f, 0xec9d808a, 0xdbf7428b, 0x82490489,
+    0xb523c688, 0x88649a83, 0xbf0e5882, 0xe6b01e80, 0xd1dadc81,
+    0x54cc9384, 0x63a65185, 0x3a181787, 0x0d72d586, 0xa0d0e2a9,
+    0x97ba20a8, 0xce0466aa, 0xf96ea4ab, 0x7c78ebae, 0x4b1229af,
+    0x12ac6fad, 0x25c6adac, 0x1881f1a7, 0x2feb33a6, 0x765575a4,
+    0x413fb7a5, 0xc429f8a0, 0xf3433aa1, 0xaafd7ca3, 0x9d97bea2,
+    0xd073c4b5, 0xe71906b4, 0xbea740b6, 0x89cd82b7, 0x0cdbcdb2,
+    0x3bb10fb3, 0x620f49b1, 0x55658bb0, 0x6822d7bb, 0x5f4815ba,
+    0x06f653b8, 0x319c91b9, 0xb48adebc, 0x83e01cbd, 0xda5e5abf,
+    0xed3498be},
+   {0x00000000, 0x6567bcb8, 0x8bc809aa, 0xeeafb512, 0x5797628f,
+    0x32f0de37, 0xdc5f6b25, 0xb938d79d, 0xef28b4c5, 0x8a4f087d,
+    0x64e0bd6f, 0x018701d7, 0xb8bfd64a, 0xddd86af2, 0x3377dfe0,
+    0x56106358, 0x9f571950, 0xfa30a5e8, 0x149f10fa, 0x71f8ac42,
+    0xc8c07bdf, 0xada7c767, 0x43087275, 0x266fcecd, 0x707fad95,
+    0x1518112d, 0xfbb7a43f, 0x9ed01887, 0x27e8cf1a, 0x428f73a2,
+    0xac20c6b0, 0xc9477a08, 0x3eaf32a0, 0x5bc88e18, 0xb5673b0a,
+    0xd00087b2, 0x6938502f, 0x0c5fec97, 0xe2f05985, 0x8797e53d,
+    0xd1878665, 0xb4e03add, 0x5a4f8fcf, 0x3f283377, 0x8610e4ea,
+    0xe3775852, 0x0dd8ed40, 0x68bf51f8, 0xa1f82bf0, 0xc49f9748,
+    0x2a30225a, 0x4f579ee2, 0xf66f497f, 0x9308f5c7, 0x7da740d5,
+    0x18c0fc6d, 0x4ed09f35, 0x2bb7238d, 0xc518969f, 0xa07f2a27,
+    0x1947fdba, 0x7c204102, 0x928ff410, 0xf7e848a8, 0x3d58149b,
+    0x583fa823, 0xb6901d31, 0xd3f7a189, 0x6acf7614, 0x0fa8caac,
+    0xe1077fbe, 0x8460c306, 0xd270a05e, 0xb7171ce6, 0x59b8a9f4,
+    0x3cdf154c, 0x85e7c2d1, 0xe0807e69, 0x0e2fcb7b, 0x6b4877c3,
+    0xa20f0dcb, 0xc768b173, 0x29c70461, 0x4ca0b8d9, 0xf5986f44,
+    0x90ffd3fc, 0x7e5066ee, 0x1b37da56, 0x4d27b90e, 0x284005b6,
+    0xc6efb0a4, 0xa3880c1c, 0x1ab0db81, 0x7fd76739, 0x9178d22b,
+    0xf41f6e93, 0x03f7263b, 0x66909a83, 0x883f2f91, 0xed589329,
+    0x546044b4, 0x3107f80c, 0xdfa84d1e, 0xbacff1a6, 0xecdf92fe,
+    0x89b82e46, 0x67179b54, 0x027027ec, 0xbb48f071, 0xde2f4cc9,
+    0x3080f9db, 0x55e74563, 0x9ca03f6b, 0xf9c783d3, 0x176836c1,
+    0x720f8a79, 0xcb375de4, 0xae50e15c, 0x40ff544e, 0x2598e8f6,
+    0x73888bae, 0x16ef3716, 0xf8408204, 0x9d273ebc, 0x241fe921,
+    0x41785599, 0xafd7e08b, 0xcab05c33, 0x3bb659ed, 0x5ed1e555,
+    0xb07e5047, 0xd519ecff, 0x6c213b62, 0x094687da, 0xe7e932c8,
+    0x828e8e70, 0xd49eed28, 0xb1f95190, 0x5f56e482, 0x3a31583a,
+    0x83098fa7, 0xe66e331f, 0x08c1860d, 0x6da63ab5, 0xa4e140bd,
+    0xc186fc05, 0x2f294917, 0x4a4ef5af, 0xf3762232, 0x96119e8a,
+    0x78be2b98, 0x1dd99720, 0x4bc9f478, 0x2eae48c0, 0xc001fdd2,
+    0xa566416a, 0x1c5e96f7, 0x79392a4f, 0x97969f5d, 0xf2f123e5,
+    0x05196b4d, 0x607ed7f5, 0x8ed162e7, 0xebb6de5f, 0x528e09c2,
+    0x37e9b57a, 0xd9460068, 0xbc21bcd0, 0xea31df88, 0x8f566330,
+    0x61f9d622, 0x049e6a9a, 0xbda6bd07, 0xd8c101bf, 0x366eb4ad,
+    0x53090815, 0x9a4e721d, 0xff29cea5, 0x11867bb7, 0x74e1c70f,
+    0xcdd91092, 0xa8beac2a, 0x46111938, 0x2376a580, 0x7566c6d8,
+    0x10017a60, 0xfeaecf72, 0x9bc973ca, 0x22f1a457, 0x479618ef,
+    0xa939adfd, 0xcc5e1145, 0x06ee4d76, 0x6389f1ce, 0x8d2644dc,
+    0xe841f864, 0x51792ff9, 0x341e9341, 0xdab12653, 0xbfd69aeb,
+    0xe9c6f9b3, 0x8ca1450b, 0x620ef019, 0x07694ca1, 0xbe519b3c,
+    0xdb362784, 0x35999296, 0x50fe2e2e, 0x99b95426, 0xfcdee89e,
+    0x12715d8c, 0x7716e134, 0xce2e36a9, 0xab498a11, 0x45e63f03,
+    0x208183bb, 0x7691e0e3, 0x13f65c5b, 0xfd59e949, 0x983e55f1,
+    0x2106826c, 0x44613ed4, 0xaace8bc6, 0xcfa9377e, 0x38417fd6,
+    0x5d26c36e, 0xb389767c, 0xd6eecac4, 0x6fd61d59, 0x0ab1a1e1,
+    0xe41e14f3, 0x8179a84b, 0xd769cb13, 0xb20e77ab, 0x5ca1c2b9,
+    0x39c67e01, 0x80fea99c, 0xe5991524, 0x0b36a036, 0x6e511c8e,
+    0xa7166686, 0xc271da3e, 0x2cde6f2c, 0x49b9d394, 0xf0810409,
+    0x95e6b8b1, 0x7b490da3, 0x1e2eb11b, 0x483ed243, 0x2d596efb,
+    0xc3f6dbe9, 0xa6916751, 0x1fa9b0cc, 0x7ace0c74, 0x9461b966,
+    0xf10605de}};
+
+#endif
+
+#endif
+
+#if N == 2
+
+#if W == 8
+
+local const z_crc_t FAR crc_braid_table[][256] = {
+   {0x00000000, 0xae689191, 0x87a02563, 0x29c8b4f2, 0xd4314c87,
+    0x7a59dd16, 0x539169e4, 0xfdf9f875, 0x73139f4f, 0xdd7b0ede,
+    0xf4b3ba2c, 0x5adb2bbd, 0xa722d3c8, 0x094a4259, 0x2082f6ab,
+    0x8eea673a, 0xe6273e9e, 0x484faf0f, 0x61871bfd, 0xcfef8a6c,
+    0x32167219, 0x9c7ee388, 0xb5b6577a, 0x1bdec6eb, 0x9534a1d1,
+    0x3b5c3040, 0x129484b2, 0xbcfc1523, 0x4105ed56, 0xef6d7cc7,
+    0xc6a5c835, 0x68cd59a4, 0x173f7b7d, 0xb957eaec, 0x909f5e1e,
+    0x3ef7cf8f, 0xc30e37fa, 0x6d66a66b, 0x44ae1299, 0xeac68308,
+    0x642ce432, 0xca4475a3, 0xe38cc151, 0x4de450c0, 0xb01da8b5,
+    0x1e753924, 0x37bd8dd6, 0x99d51c47, 0xf11845e3, 0x5f70d472,
+    0x76b86080, 0xd8d0f111, 0x25290964, 0x8b4198f5, 0xa2892c07,
+    0x0ce1bd96, 0x820bdaac, 0x2c634b3d, 0x05abffcf, 0xabc36e5e,
+    0x563a962b, 0xf85207ba, 0xd19ab348, 0x7ff222d9, 0x2e7ef6fa,
+    0x8016676b, 0xa9ded399, 0x07b64208, 0xfa4fba7d, 0x54272bec,
+    0x7def9f1e, 0xd3870e8f, 0x5d6d69b5, 0xf305f824, 0xdacd4cd6,
+    0x74a5dd47, 0x895c2532, 0x2734b4a3, 0x0efc0051, 0xa09491c0,
+    0xc859c864, 0x663159f5, 0x4ff9ed07, 0xe1917c96, 0x1c6884e3,
+    0xb2001572, 0x9bc8a180, 0x35a03011, 0xbb4a572b, 0x1522c6ba,
+    0x3cea7248, 0x9282e3d9, 0x6f7b1bac, 0xc1138a3d, 0xe8db3ecf,
+    0x46b3af5e, 0x39418d87, 0x97291c16, 0xbee1a8e4, 0x10893975,
+    0xed70c100, 0x43185091, 0x6ad0e463, 0xc4b875f2, 0x4a5212c8,
+    0xe43a8359, 0xcdf237ab, 0x639aa63a, 0x9e635e4f, 0x300bcfde,
+    0x19c37b2c, 0xb7abeabd, 0xdf66b319, 0x710e2288, 0x58c6967a,
+    0xf6ae07eb, 0x0b57ff9e, 0xa53f6e0f, 0x8cf7dafd, 0x229f4b6c,
+    0xac752c56, 0x021dbdc7, 0x2bd50935, 0x85bd98a4, 0x784460d1,
+    0xd62cf140, 0xffe445b2, 0x518cd423, 0x5cfdedf4, 0xf2957c65,
+    0xdb5dc897, 0x75355906, 0x88cca173, 0x26a430e2, 0x0f6c8410,
+    0xa1041581, 0x2fee72bb, 0x8186e32a, 0xa84e57d8, 0x0626c649,
+    0xfbdf3e3c, 0x55b7afad, 0x7c7f1b5f, 0xd2178ace, 0xbadad36a,
+    0x14b242fb, 0x3d7af609, 0x93126798, 0x6eeb9fed, 0xc0830e7c,
+    0xe94bba8e, 0x47232b1f, 0xc9c94c25, 0x67a1ddb4, 0x4e696946,
+    0xe001f8d7, 0x1df800a2, 0xb3909133, 0x9a5825c1, 0x3430b450,
+    0x4bc29689, 0xe5aa0718, 0xcc62b3ea, 0x620a227b, 0x9ff3da0e,
+    0x319b4b9f, 0x1853ff6d, 0xb63b6efc, 0x38d109c6, 0x96b99857,
+    0xbf712ca5, 0x1119bd34, 0xece04541, 0x4288d4d0, 0x6b406022,
+    0xc528f1b3, 0xade5a817, 0x038d3986, 0x2a458d74, 0x842d1ce5,
+    0x79d4e490, 0xd7bc7501, 0xfe74c1f3, 0x501c5062, 0xdef63758,
+    0x709ea6c9, 0x5956123b, 0xf73e83aa, 0x0ac77bdf, 0xa4afea4e,
+    0x8d675ebc, 0x230fcf2d, 0x72831b0e, 0xdceb8a9f, 0xf5233e6d,
+    0x5b4baffc, 0xa6b25789, 0x08dac618, 0x211272ea, 0x8f7ae37b,
+    0x01908441, 0xaff815d0, 0x8630a122, 0x285830b3, 0xd5a1c8c6,
+    0x7bc95957, 0x5201eda5, 0xfc697c34, 0x94a42590, 0x3accb401,
+    0x130400f3, 0xbd6c9162, 0x40956917, 0xeefdf886, 0xc7354c74,
+    0x695ddde5, 0xe7b7badf, 0x49df2b4e, 0x60179fbc, 0xce7f0e2d,
+    0x3386f658, 0x9dee67c9, 0xb426d33b, 0x1a4e42aa, 0x65bc6073,
+    0xcbd4f1e2, 0xe21c4510, 0x4c74d481, 0xb18d2cf4, 0x1fe5bd65,
+    0x362d0997, 0x98459806, 0x16afff3c, 0xb8c76ead, 0x910fda5f,
+    0x3f674bce, 0xc29eb3bb, 0x6cf6222a, 0x453e96d8, 0xeb560749,
+    0x839b5eed, 0x2df3cf7c, 0x043b7b8e, 0xaa53ea1f, 0x57aa126a,
+    0xf9c283fb, 0xd00a3709, 0x7e62a698, 0xf088c1a2, 0x5ee05033,
+    0x7728e4c1, 0xd9407550, 0x24b98d25, 0x8ad11cb4, 0xa319a846,
+    0x0d7139d7},
+   {0x00000000, 0xb9fbdbe8, 0xa886b191, 0x117d6a79, 0x8a7c6563,
+    0x3387be8b, 0x22fad4f2, 0x9b010f1a, 0xcf89cc87, 0x7672176f,
+    0x670f7d16, 0xdef4a6fe, 0x45f5a9e4, 0xfc0e720c, 0xed731875,
+    0x5488c39d, 0x44629f4f, 0xfd9944a7, 0xece42ede, 0x551ff536,
+    0xce1efa2c, 0x77e521c4, 0x66984bbd, 0xdf639055, 0x8beb53c8,
+    0x32108820, 0x236de259, 0x9a9639b1, 0x019736ab, 0xb86ced43,
+    0xa911873a, 0x10ea5cd2, 0x88c53e9e, 0x313ee576, 0x20438f0f,
+    0x99b854e7, 0x02b95bfd, 0xbb428015, 0xaa3fea6c, 0x13c43184,
+    0x474cf219, 0xfeb729f1, 0xefca4388, 0x56319860, 0xcd30977a,
+    0x74cb4c92, 0x65b626eb, 0xdc4dfd03, 0xcca7a1d1, 0x755c7a39,
+    0x64211040, 0xdddacba8, 0x46dbc4b2, 0xff201f5a, 0xee5d7523,
+    0x57a6aecb, 0x032e6d56, 0xbad5b6be, 0xaba8dcc7, 0x1253072f,
+    0x89520835, 0x30a9d3dd, 0x21d4b9a4, 0x982f624c, 0xcafb7b7d,
+    0x7300a095, 0x627dcaec, 0xdb861104, 0x40871e1e, 0xf97cc5f6,
+    0xe801af8f, 0x51fa7467, 0x0572b7fa, 0xbc896c12, 0xadf4066b,
+    0x140fdd83, 0x8f0ed299, 0x36f50971, 0x27886308, 0x9e73b8e0,
+    0x8e99e432, 0x37623fda, 0x261f55a3, 0x9fe48e4b, 0x04e58151,
+    0xbd1e5ab9, 0xac6330c0, 0x1598eb28, 0x411028b5, 0xf8ebf35d,
+    0xe9969924, 0x506d42cc, 0xcb6c4dd6, 0x7297963e, 0x63eafc47,
+    0xda1127af, 0x423e45e3, 0xfbc59e0b, 0xeab8f472, 0x53432f9a,
+    0xc8422080, 0x71b9fb68, 0x60c49111, 0xd93f4af9, 0x8db78964,
+    0x344c528c, 0x253138f5, 0x9ccae31d, 0x07cbec07, 0xbe3037ef,
+    0xaf4d5d96, 0x16b6867e, 0x065cdaac, 0xbfa70144, 0xaeda6b3d,
+    0x1721b0d5, 0x8c20bfcf, 0x35db6427, 0x24a60e5e, 0x9d5dd5b6,
+    0xc9d5162b, 0x702ecdc3, 0x6153a7ba, 0xd8a87c52, 0x43a97348,
+    0xfa52a8a0, 0xeb2fc2d9, 0x52d41931, 0x4e87f0bb, 0xf77c2b53,
+    0xe601412a, 0x5ffa9ac2, 0xc4fb95d8, 0x7d004e30, 0x6c7d2449,
+    0xd586ffa1, 0x810e3c3c, 0x38f5e7d4, 0x29888dad, 0x90735645,
+    0x0b72595f, 0xb28982b7, 0xa3f4e8ce, 0x1a0f3326, 0x0ae56ff4,
+    0xb31eb41c, 0xa263de65, 0x1b98058d, 0x80990a97, 0x3962d17f,
+    0x281fbb06, 0x91e460ee, 0xc56ca373, 0x7c97789b, 0x6dea12e2,
+    0xd411c90a, 0x4f10c610, 0xf6eb1df8, 0xe7967781, 0x5e6dac69,
+    0xc642ce25, 0x7fb915cd, 0x6ec47fb4, 0xd73fa45c, 0x4c3eab46,
+    0xf5c570ae, 0xe4b81ad7, 0x5d43c13f, 0x09cb02a2, 0xb030d94a,
+    0xa14db333, 0x18b668db, 0x83b767c1, 0x3a4cbc29, 0x2b31d650,
+    0x92ca0db8, 0x8220516a, 0x3bdb8a82, 0x2aa6e0fb, 0x935d3b13,
+    0x085c3409, 0xb1a7efe1, 0xa0da8598, 0x19215e70, 0x4da99ded,
+    0xf4524605, 0xe52f2c7c, 0x5cd4f794, 0xc7d5f88e, 0x7e2e2366,
+    0x6f53491f, 0xd6a892f7, 0x847c8bc6, 0x3d87502e, 0x2cfa3a57,
+    0x9501e1bf, 0x0e00eea5, 0xb7fb354d, 0xa6865f34, 0x1f7d84dc,
+    0x4bf54741, 0xf20e9ca9, 0xe373f6d0, 0x5a882d38, 0xc1892222,
+    0x7872f9ca, 0x690f93b3, 0xd0f4485b, 0xc01e1489, 0x79e5cf61,
+    0x6898a518, 0xd1637ef0, 0x4a6271ea, 0xf399aa02, 0xe2e4c07b,
+    0x5b1f1b93, 0x0f97d80e, 0xb66c03e6, 0xa711699f, 0x1eeab277,
+    0x85ebbd6d, 0x3c106685, 0x2d6d0cfc, 0x9496d714, 0x0cb9b558,
+    0xb5426eb0, 0xa43f04c9, 0x1dc4df21, 0x86c5d03b, 0x3f3e0bd3,
+    0x2e4361aa, 0x97b8ba42, 0xc33079df, 0x7acba237, 0x6bb6c84e,
+    0xd24d13a6, 0x494c1cbc, 0xf0b7c754, 0xe1caad2d, 0x583176c5,
+    0x48db2a17, 0xf120f1ff, 0xe05d9b86, 0x59a6406e, 0xc2a74f74,
+    0x7b5c949c, 0x6a21fee5, 0xd3da250d, 0x8752e690, 0x3ea93d78,
+    0x2fd45701, 0x962f8ce9, 0x0d2e83f3, 0xb4d5581b, 0xa5a83262,
+    0x1c53e98a},
+   {0x00000000, 0x9d0fe176, 0xe16ec4ad, 0x7c6125db, 0x19ac8f1b,
+    0x84a36e6d, 0xf8c24bb6, 0x65cdaac0, 0x33591e36, 0xae56ff40,
+    0xd237da9b, 0x4f383bed, 0x2af5912d, 0xb7fa705b, 0xcb9b5580,
+    0x5694b4f6, 0x66b23c6c, 0xfbbddd1a, 0x87dcf8c1, 0x1ad319b7,
+    0x7f1eb377, 0xe2115201, 0x9e7077da, 0x037f96ac, 0x55eb225a,
+    0xc8e4c32c, 0xb485e6f7, 0x298a0781, 0x4c47ad41, 0xd1484c37,
+    0xad2969ec, 0x3026889a, 0xcd6478d8, 0x506b99ae, 0x2c0abc75,
+    0xb1055d03, 0xd4c8f7c3, 0x49c716b5, 0x35a6336e, 0xa8a9d218,
+    0xfe3d66ee, 0x63328798, 0x1f53a243, 0x825c4335, 0xe791e9f5,
+    0x7a9e0883, 0x06ff2d58, 0x9bf0cc2e, 0xabd644b4, 0x36d9a5c2,
+    0x4ab88019, 0xd7b7616f, 0xb27acbaf, 0x2f752ad9, 0x53140f02,
+    0xce1bee74, 0x988f5a82, 0x0580bbf4, 0x79e19e2f, 0xe4ee7f59,
+    0x8123d599, 0x1c2c34ef, 0x604d1134, 0xfd42f042, 0x41b9f7f1,
+    0xdcb61687, 0xa0d7335c, 0x3dd8d22a, 0x581578ea, 0xc51a999c,
+    0xb97bbc47, 0x24745d31, 0x72e0e9c7, 0xefef08b1, 0x938e2d6a,
+    0x0e81cc1c, 0x6b4c66dc, 0xf64387aa, 0x8a22a271, 0x172d4307,
+    0x270bcb9d, 0xba042aeb, 0xc6650f30, 0x5b6aee46, 0x3ea74486,
+    0xa3a8a5f0, 0xdfc9802b, 0x42c6615d, 0x1452d5ab, 0x895d34dd,
+    0xf53c1106, 0x6833f070, 0x0dfe5ab0, 0x90f1bbc6, 0xec909e1d,
+    0x719f7f6b, 0x8cdd8f29, 0x11d26e5f, 0x6db34b84, 0xf0bcaaf2,
+    0x95710032, 0x087ee144, 0x741fc49f, 0xe91025e9, 0xbf84911f,
+    0x228b7069, 0x5eea55b2, 0xc3e5b4c4, 0xa6281e04, 0x3b27ff72,
+    0x4746daa9, 0xda493bdf, 0xea6fb345, 0x77605233, 0x0b0177e8,
+    0x960e969e, 0xf3c33c5e, 0x6eccdd28, 0x12adf8f3, 0x8fa21985,
+    0xd936ad73, 0x44394c05, 0x385869de, 0xa55788a8, 0xc09a2268,
+    0x5d95c31e, 0x21f4e6c5, 0xbcfb07b3, 0x8373efe2, 0x1e7c0e94,
+    0x621d2b4f, 0xff12ca39, 0x9adf60f9, 0x07d0818f, 0x7bb1a454,
+    0xe6be4522, 0xb02af1d4, 0x2d2510a2, 0x51443579, 0xcc4bd40f,
+    0xa9867ecf, 0x34899fb9, 0x48e8ba62, 0xd5e75b14, 0xe5c1d38e,
+    0x78ce32f8, 0x04af1723, 0x99a0f655, 0xfc6d5c95, 0x6162bde3,
+    0x1d039838, 0x800c794e, 0xd698cdb8, 0x4b972cce, 0x37f60915,
+    0xaaf9e863, 0xcf3442a3, 0x523ba3d5, 0x2e5a860e, 0xb3556778,
+    0x4e17973a, 0xd318764c, 0xaf795397, 0x3276b2e1, 0x57bb1821,
+    0xcab4f957, 0xb6d5dc8c, 0x2bda3dfa, 0x7d4e890c, 0xe041687a,
+    0x9c204da1, 0x012facd7, 0x64e20617, 0xf9ede761, 0x858cc2ba,
+    0x188323cc, 0x28a5ab56, 0xb5aa4a20, 0xc9cb6ffb, 0x54c48e8d,
+    0x3109244d, 0xac06c53b, 0xd067e0e0, 0x4d680196, 0x1bfcb560,
+    0x86f35416, 0xfa9271cd, 0x679d90bb, 0x02503a7b, 0x9f5fdb0d,
+    0xe33efed6, 0x7e311fa0, 0xc2ca1813, 0x5fc5f965, 0x23a4dcbe,
+    0xbeab3dc8, 0xdb669708, 0x4669767e, 0x3a0853a5, 0xa707b2d3,
+    0xf1930625, 0x6c9ce753, 0x10fdc288, 0x8df223fe, 0xe83f893e,
+    0x75306848, 0x09514d93, 0x945eace5, 0xa478247f, 0x3977c509,
+    0x4516e0d2, 0xd81901a4, 0xbdd4ab64, 0x20db4a12, 0x5cba6fc9,
+    0xc1b58ebf, 0x97213a49, 0x0a2edb3f, 0x764ffee4, 0xeb401f92,
+    0x8e8db552, 0x13825424, 0x6fe371ff, 0xf2ec9089, 0x0fae60cb,
+    0x92a181bd, 0xeec0a466, 0x73cf4510, 0x1602efd0, 0x8b0d0ea6,
+    0xf76c2b7d, 0x6a63ca0b, 0x3cf77efd, 0xa1f89f8b, 0xdd99ba50,
+    0x40965b26, 0x255bf1e6, 0xb8541090, 0xc435354b, 0x593ad43d,
+    0x691c5ca7, 0xf413bdd1, 0x8872980a, 0x157d797c, 0x70b0d3bc,
+    0xedbf32ca, 0x91de1711, 0x0cd1f667, 0x5a454291, 0xc74aa3e7,
+    0xbb2b863c, 0x2624674a, 0x43e9cd8a, 0xdee62cfc, 0xa2870927,
+    0x3f88e851},
+   {0x00000000, 0xdd96d985, 0x605cb54b, 0xbdca6cce, 0xc0b96a96,
+    0x1d2fb313, 0xa0e5dfdd, 0x7d730658, 0x5a03d36d, 0x87950ae8,
+    0x3a5f6626, 0xe7c9bfa3, 0x9abab9fb, 0x472c607e, 0xfae60cb0,
+    0x2770d535, 0xb407a6da, 0x69917f5f, 0xd45b1391, 0x09cdca14,
+    0x74becc4c, 0xa92815c9, 0x14e27907, 0xc974a082, 0xee0475b7,
+    0x3392ac32, 0x8e58c0fc, 0x53ce1979, 0x2ebd1f21, 0xf32bc6a4,
+    0x4ee1aa6a, 0x937773ef, 0xb37e4bf5, 0x6ee89270, 0xd322febe,
+    0x0eb4273b, 0x73c72163, 0xae51f8e6, 0x139b9428, 0xce0d4dad,
+    0xe97d9898, 0x34eb411d, 0x89212dd3, 0x54b7f456, 0x29c4f20e,
+    0xf4522b8b, 0x49984745, 0x940e9ec0, 0x0779ed2f, 0xdaef34aa,
+    0x67255864, 0xbab381e1, 0xc7c087b9, 0x1a565e3c, 0xa79c32f2,
+    0x7a0aeb77, 0x5d7a3e42, 0x80ece7c7, 0x3d268b09, 0xe0b0528c,
+    0x9dc354d4, 0x40558d51, 0xfd9fe19f, 0x2009381a, 0xbd8d91ab,
+    0x601b482e, 0xddd124e0, 0x0047fd65, 0x7d34fb3d, 0xa0a222b8,
+    0x1d684e76, 0xc0fe97f3, 0xe78e42c6, 0x3a189b43, 0x87d2f78d,
+    0x5a442e08, 0x27372850, 0xfaa1f1d5, 0x476b9d1b, 0x9afd449e,
+    0x098a3771, 0xd41ceef4, 0x69d6823a, 0xb4405bbf, 0xc9335de7,
+    0x14a58462, 0xa96fe8ac, 0x74f93129, 0x5389e41c, 0x8e1f3d99,
+    0x33d55157, 0xee4388d2, 0x93308e8a, 0x4ea6570f, 0xf36c3bc1,
+    0x2efae244, 0x0ef3da5e, 0xd36503db, 0x6eaf6f15, 0xb339b690,
+    0xce4ab0c8, 0x13dc694d, 0xae160583, 0x7380dc06, 0x54f00933,
+    0x8966d0b6, 0x34acbc78, 0xe93a65fd, 0x944963a5, 0x49dfba20,
+    0xf415d6ee, 0x29830f6b, 0xbaf47c84, 0x6762a501, 0xdaa8c9cf,
+    0x073e104a, 0x7a4d1612, 0xa7dbcf97, 0x1a11a359, 0xc7877adc,
+    0xe0f7afe9, 0x3d61766c, 0x80ab1aa2, 0x5d3dc327, 0x204ec57f,
+    0xfdd81cfa, 0x40127034, 0x9d84a9b1, 0xa06a2517, 0x7dfcfc92,
+    0xc036905c, 0x1da049d9, 0x60d34f81, 0xbd459604, 0x008ffaca,
+    0xdd19234f, 0xfa69f67a, 0x27ff2fff, 0x9a354331, 0x47a39ab4,
+    0x3ad09cec, 0xe7464569, 0x5a8c29a7, 0x871af022, 0x146d83cd,
+    0xc9fb5a48, 0x74313686, 0xa9a7ef03, 0xd4d4e95b, 0x094230de,
+    0xb4885c10, 0x691e8595, 0x4e6e50a0, 0x93f88925, 0x2e32e5eb,
+    0xf3a43c6e, 0x8ed73a36, 0x5341e3b3, 0xee8b8f7d, 0x331d56f8,
+    0x13146ee2, 0xce82b767, 0x7348dba9, 0xaede022c, 0xd3ad0474,
+    0x0e3bddf1, 0xb3f1b13f, 0x6e6768ba, 0x4917bd8f, 0x9481640a,
+    0x294b08c4, 0xf4ddd141, 0x89aed719, 0x54380e9c, 0xe9f26252,
+    0x3464bbd7, 0xa713c838, 0x7a8511bd, 0xc74f7d73, 0x1ad9a4f6,
+    0x67aaa2ae, 0xba3c7b2b, 0x07f617e5, 0xda60ce60, 0xfd101b55,
+    0x2086c2d0, 0x9d4cae1e, 0x40da779b, 0x3da971c3, 0xe03fa846,
+    0x5df5c488, 0x80631d0d, 0x1de7b4bc, 0xc0716d39, 0x7dbb01f7,
+    0xa02dd872, 0xdd5ede2a, 0x00c807af, 0xbd026b61, 0x6094b2e4,
+    0x47e467d1, 0x9a72be54, 0x27b8d29a, 0xfa2e0b1f, 0x875d0d47,
+    0x5acbd4c2, 0xe701b80c, 0x3a976189, 0xa9e01266, 0x7476cbe3,
+    0xc9bca72d, 0x142a7ea8, 0x695978f0, 0xb4cfa175, 0x0905cdbb,
+    0xd493143e, 0xf3e3c10b, 0x2e75188e, 0x93bf7440, 0x4e29adc5,
+    0x335aab9d, 0xeecc7218, 0x53061ed6, 0x8e90c753, 0xae99ff49,
+    0x730f26cc, 0xcec54a02, 0x13539387, 0x6e2095df, 0xb3b64c5a,
+    0x0e7c2094, 0xd3eaf911, 0xf49a2c24, 0x290cf5a1, 0x94c6996f,
+    0x495040ea, 0x342346b2, 0xe9b59f37, 0x547ff3f9, 0x89e92a7c,
+    0x1a9e5993, 0xc7088016, 0x7ac2ecd8, 0xa754355d, 0xda273305,
+    0x07b1ea80, 0xba7b864e, 0x67ed5fcb, 0x409d8afe, 0x9d0b537b,
+    0x20c13fb5, 0xfd57e630, 0x8024e068, 0x5db239ed, 0xe0785523,
+    0x3dee8ca6},
+   {0x00000000, 0x9ba54c6f, 0xec3b9e9f, 0x779ed2f0, 0x03063b7f,
+    0x98a37710, 0xef3da5e0, 0x7498e98f, 0x060c76fe, 0x9da93a91,
+    0xea37e861, 0x7192a40e, 0x050a4d81, 0x9eaf01ee, 0xe931d31e,
+    0x72949f71, 0x0c18edfc, 0x97bda193, 0xe0237363, 0x7b863f0c,
+    0x0f1ed683, 0x94bb9aec, 0xe325481c, 0x78800473, 0x0a149b02,
+    0x91b1d76d, 0xe62f059d, 0x7d8a49f2, 0x0912a07d, 0x92b7ec12,
+    0xe5293ee2, 0x7e8c728d, 0x1831dbf8, 0x83949797, 0xf40a4567,
+    0x6faf0908, 0x1b37e087, 0x8092ace8, 0xf70c7e18, 0x6ca93277,
+    0x1e3dad06, 0x8598e169, 0xf2063399, 0x69a37ff6, 0x1d3b9679,
+    0x869eda16, 0xf10008e6, 0x6aa54489, 0x14293604, 0x8f8c7a6b,
+    0xf812a89b, 0x63b7e4f4, 0x172f0d7b, 0x8c8a4114, 0xfb1493e4,
+    0x60b1df8b, 0x122540fa, 0x89800c95, 0xfe1ede65, 0x65bb920a,
+    0x11237b85, 0x8a8637ea, 0xfd18e51a, 0x66bda975, 0x3063b7f0,
+    0xabc6fb9f, 0xdc58296f, 0x47fd6500, 0x33658c8f, 0xa8c0c0e0,
+    0xdf5e1210, 0x44fb5e7f, 0x366fc10e, 0xadca8d61, 0xda545f91,
+    0x41f113fe, 0x3569fa71, 0xaeccb61e, 0xd95264ee, 0x42f72881,
+    0x3c7b5a0c, 0xa7de1663, 0xd040c493, 0x4be588fc, 0x3f7d6173,
+    0xa4d82d1c, 0xd346ffec, 0x48e3b383, 0x3a772cf2, 0xa1d2609d,
+    0xd64cb26d, 0x4de9fe02, 0x3971178d, 0xa2d45be2, 0xd54a8912,
+    0x4eefc57d, 0x28526c08, 0xb3f72067, 0xc469f297, 0x5fccbef8,
+    0x2b545777, 0xb0f11b18, 0xc76fc9e8, 0x5cca8587, 0x2e5e1af6,
+    0xb5fb5699, 0xc2658469, 0x59c0c806, 0x2d582189, 0xb6fd6de6,
+    0xc163bf16, 0x5ac6f379, 0x244a81f4, 0xbfefcd9b, 0xc8711f6b,
+    0x53d45304, 0x274cba8b, 0xbce9f6e4, 0xcb772414, 0x50d2687b,
+    0x2246f70a, 0xb9e3bb65, 0xce7d6995, 0x55d825fa, 0x2140cc75,
+    0xbae5801a, 0xcd7b52ea, 0x56de1e85, 0x60c76fe0, 0xfb62238f,
+    0x8cfcf17f, 0x1759bd10, 0x63c1549f, 0xf86418f0, 0x8ffaca00,
+    0x145f866f, 0x66cb191e, 0xfd6e5571, 0x8af08781, 0x1155cbee,
+    0x65cd2261, 0xfe686e0e, 0x89f6bcfe, 0x1253f091, 0x6cdf821c,
+    0xf77ace73, 0x80e41c83, 0x1b4150ec, 0x6fd9b963, 0xf47cf50c,
+    0x83e227fc, 0x18476b93, 0x6ad3f4e2, 0xf176b88d, 0x86e86a7d,
+    0x1d4d2612, 0x69d5cf9d, 0xf27083f2, 0x85ee5102, 0x1e4b1d6d,
+    0x78f6b418, 0xe353f877, 0x94cd2a87, 0x0f6866e8, 0x7bf08f67,
+    0xe055c308, 0x97cb11f8, 0x0c6e5d97, 0x7efac2e6, 0xe55f8e89,
+    0x92c15c79, 0x09641016, 0x7dfcf999, 0xe659b5f6, 0x91c76706,
+    0x0a622b69, 0x74ee59e4, 0xef4b158b, 0x98d5c77b, 0x03708b14,
+    0x77e8629b, 0xec4d2ef4, 0x9bd3fc04, 0x0076b06b, 0x72e22f1a,
+    0xe9476375, 0x9ed9b185, 0x057cfdea, 0x71e41465, 0xea41580a,
+    0x9ddf8afa, 0x067ac695, 0x50a4d810, 0xcb01947f, 0xbc9f468f,
+    0x273a0ae0, 0x53a2e36f, 0xc807af00, 0xbf997df0, 0x243c319f,
+    0x56a8aeee, 0xcd0de281, 0xba933071, 0x21367c1e, 0x55ae9591,
+    0xce0bd9fe, 0xb9950b0e, 0x22304761, 0x5cbc35ec, 0xc7197983,
+    0xb087ab73, 0x2b22e71c, 0x5fba0e93, 0xc41f42fc, 0xb381900c,
+    0x2824dc63, 0x5ab04312, 0xc1150f7d, 0xb68bdd8d, 0x2d2e91e2,
+    0x59b6786d, 0xc2133402, 0xb58de6f2, 0x2e28aa9d, 0x489503e8,
+    0xd3304f87, 0xa4ae9d77, 0x3f0bd118, 0x4b933897, 0xd03674f8,
+    0xa7a8a608, 0x3c0dea67, 0x4e997516, 0xd53c3979, 0xa2a2eb89,
+    0x3907a7e6, 0x4d9f4e69, 0xd63a0206, 0xa1a4d0f6, 0x3a019c99,
+    0x448dee14, 0xdf28a27b, 0xa8b6708b, 0x33133ce4, 0x478bd56b,
+    0xdc2e9904, 0xabb04bf4, 0x3015079b, 0x428198ea, 0xd924d485,
+    0xaeba0675, 0x351f4a1a, 0x4187a395, 0xda22effa, 0xadbc3d0a,
+    0x36197165},
+   {0x00000000, 0xc18edfc0, 0x586cb9c1, 0x99e26601, 0xb0d97382,
+    0x7157ac42, 0xe8b5ca43, 0x293b1583, 0xbac3e145, 0x7b4d3e85,
+    0xe2af5884, 0x23218744, 0x0a1a92c7, 0xcb944d07, 0x52762b06,
+    0x93f8f4c6, 0xaef6c4cb, 0x6f781b0b, 0xf69a7d0a, 0x3714a2ca,
+    0x1e2fb749, 0xdfa16889, 0x46430e88, 0x87cdd148, 0x1435258e,
+    0xd5bbfa4e, 0x4c599c4f, 0x8dd7438f, 0xa4ec560c, 0x656289cc,
+    0xfc80efcd, 0x3d0e300d, 0x869c8fd7, 0x47125017, 0xdef03616,
+    0x1f7ee9d6, 0x3645fc55, 0xf7cb2395, 0x6e294594, 0xafa79a54,
+    0x3c5f6e92, 0xfdd1b152, 0x6433d753, 0xa5bd0893, 0x8c861d10,
+    0x4d08c2d0, 0xd4eaa4d1, 0x15647b11, 0x286a4b1c, 0xe9e494dc,
+    0x7006f2dd, 0xb1882d1d, 0x98b3389e, 0x593de75e, 0xc0df815f,
+    0x01515e9f, 0x92a9aa59, 0x53277599, 0xcac51398, 0x0b4bcc58,
+    0x2270d9db, 0xe3fe061b, 0x7a1c601a, 0xbb92bfda, 0xd64819ef,
+    0x17c6c62f, 0x8e24a02e, 0x4faa7fee, 0x66916a6d, 0xa71fb5ad,
+    0x3efdd3ac, 0xff730c6c, 0x6c8bf8aa, 0xad05276a, 0x34e7416b,
+    0xf5699eab, 0xdc528b28, 0x1ddc54e8, 0x843e32e9, 0x45b0ed29,
+    0x78bedd24, 0xb93002e4, 0x20d264e5, 0xe15cbb25, 0xc867aea6,
+    0x09e97166, 0x900b1767, 0x5185c8a7, 0xc27d3c61, 0x03f3e3a1,
+    0x9a1185a0, 0x5b9f5a60, 0x72a44fe3, 0xb32a9023, 0x2ac8f622,
+    0xeb4629e2, 0x50d49638, 0x915a49f8, 0x08b82ff9, 0xc936f039,
+    0xe00de5ba, 0x21833a7a, 0xb8615c7b, 0x79ef83bb, 0xea17777d,
+    0x2b99a8bd, 0xb27bcebc, 0x73f5117c, 0x5ace04ff, 0x9b40db3f,
+    0x02a2bd3e, 0xc32c62fe, 0xfe2252f3, 0x3fac8d33, 0xa64eeb32,
+    0x67c034f2, 0x4efb2171, 0x8f75feb1, 0x169798b0, 0xd7194770,
+    0x44e1b3b6, 0x856f6c76, 0x1c8d0a77, 0xdd03d5b7, 0xf438c034,
+    0x35b61ff4, 0xac5479f5, 0x6ddaa635, 0x77e1359f, 0xb66fea5f,
+    0x2f8d8c5e, 0xee03539e, 0xc738461d, 0x06b699dd, 0x9f54ffdc,
+    0x5eda201c, 0xcd22d4da, 0x0cac0b1a, 0x954e6d1b, 0x54c0b2db,
+    0x7dfba758, 0xbc757898, 0x25971e99, 0xe419c159, 0xd917f154,
+    0x18992e94, 0x817b4895, 0x40f59755, 0x69ce82d6, 0xa8405d16,
+    0x31a23b17, 0xf02ce4d7, 0x63d41011, 0xa25acfd1, 0x3bb8a9d0,
+    0xfa367610, 0xd30d6393, 0x1283bc53, 0x8b61da52, 0x4aef0592,
+    0xf17dba48, 0x30f36588, 0xa9110389, 0x689fdc49, 0x41a4c9ca,
+    0x802a160a, 0x19c8700b, 0xd846afcb, 0x4bbe5b0d, 0x8a3084cd,
+    0x13d2e2cc, 0xd25c3d0c, 0xfb67288f, 0x3ae9f74f, 0xa30b914e,
+    0x62854e8e, 0x5f8b7e83, 0x9e05a143, 0x07e7c742, 0xc6691882,
+    0xef520d01, 0x2edcd2c1, 0xb73eb4c0, 0x76b06b00, 0xe5489fc6,
+    0x24c64006, 0xbd242607, 0x7caaf9c7, 0x5591ec44, 0x941f3384,
+    0x0dfd5585, 0xcc738a45, 0xa1a92c70, 0x6027f3b0, 0xf9c595b1,
+    0x384b4a71, 0x11705ff2, 0xd0fe8032, 0x491ce633, 0x889239f3,
+    0x1b6acd35, 0xdae412f5, 0x430674f4, 0x8288ab34, 0xabb3beb7,
+    0x6a3d6177, 0xf3df0776, 0x3251d8b6, 0x0f5fe8bb, 0xced1377b,
+    0x5733517a, 0x96bd8eba, 0xbf869b39, 0x7e0844f9, 0xe7ea22f8,
+    0x2664fd38, 0xb59c09fe, 0x7412d63e, 0xedf0b03f, 0x2c7e6fff,
+    0x05457a7c, 0xc4cba5bc, 0x5d29c3bd, 0x9ca71c7d, 0x2735a3a7,
+    0xe6bb7c67, 0x7f591a66, 0xbed7c5a6, 0x97ecd025, 0x56620fe5,
+    0xcf8069e4, 0x0e0eb624, 0x9df642e2, 0x5c789d22, 0xc59afb23,
+    0x041424e3, 0x2d2f3160, 0xeca1eea0, 0x754388a1, 0xb4cd5761,
+    0x89c3676c, 0x484db8ac, 0xd1afdead, 0x1021016d, 0x391a14ee,
+    0xf894cb2e, 0x6176ad2f, 0xa0f872ef, 0x33008629, 0xf28e59e9,
+    0x6b6c3fe8, 0xaae2e028, 0x83d9f5ab, 0x42572a6b, 0xdbb54c6a,
+    0x1a3b93aa},
+   {0x00000000, 0xefc26b3e, 0x04f5d03d, 0xeb37bb03, 0x09eba07a,
+    0xe629cb44, 0x0d1e7047, 0xe2dc1b79, 0x13d740f4, 0xfc152bca,
+    0x172290c9, 0xf8e0fbf7, 0x1a3ce08e, 0xf5fe8bb0, 0x1ec930b3,
+    0xf10b5b8d, 0x27ae81e8, 0xc86cead6, 0x235b51d5, 0xcc993aeb,
+    0x2e452192, 0xc1874aac, 0x2ab0f1af, 0xc5729a91, 0x3479c11c,
+    0xdbbbaa22, 0x308c1121, 0xdf4e7a1f, 0x3d926166, 0xd2500a58,
+    0x3967b15b, 0xd6a5da65, 0x4f5d03d0, 0xa09f68ee, 0x4ba8d3ed,
+    0xa46ab8d3, 0x46b6a3aa, 0xa974c894, 0x42437397, 0xad8118a9,
+    0x5c8a4324, 0xb348281a, 0x587f9319, 0xb7bdf827, 0x5561e35e,
+    0xbaa38860, 0x51943363, 0xbe56585d, 0x68f38238, 0x8731e906,
+    0x6c065205, 0x83c4393b, 0x61182242, 0x8eda497c, 0x65edf27f,
+    0x8a2f9941, 0x7b24c2cc, 0x94e6a9f2, 0x7fd112f1, 0x901379cf,
+    0x72cf62b6, 0x9d0d0988, 0x763ab28b, 0x99f8d9b5, 0x9eba07a0,
+    0x71786c9e, 0x9a4fd79d, 0x758dbca3, 0x9751a7da, 0x7893cce4,
+    0x93a477e7, 0x7c661cd9, 0x8d6d4754, 0x62af2c6a, 0x89989769,
+    0x665afc57, 0x8486e72e, 0x6b448c10, 0x80733713, 0x6fb15c2d,
+    0xb9148648, 0x56d6ed76, 0xbde15675, 0x52233d4b, 0xb0ff2632,
+    0x5f3d4d0c, 0xb40af60f, 0x5bc89d31, 0xaac3c6bc, 0x4501ad82,
+    0xae361681, 0x41f47dbf, 0xa32866c6, 0x4cea0df8, 0xa7ddb6fb,
+    0x481fddc5, 0xd1e70470, 0x3e256f4e, 0xd512d44d, 0x3ad0bf73,
+    0xd80ca40a, 0x37cecf34, 0xdcf97437, 0x333b1f09, 0xc2304484,
+    0x2df22fba, 0xc6c594b9, 0x2907ff87, 0xcbdbe4fe, 0x24198fc0,
+    0xcf2e34c3, 0x20ec5ffd, 0xf6498598, 0x198beea6, 0xf2bc55a5,
+    0x1d7e3e9b, 0xffa225e2, 0x10604edc, 0xfb57f5df, 0x14959ee1,
+    0xe59ec56c, 0x0a5cae52, 0xe16b1551, 0x0ea97e6f, 0xec756516,
+    0x03b70e28, 0xe880b52b, 0x0742de15, 0xe6050901, 0x09c7623f,
+    0xe2f0d93c, 0x0d32b202, 0xefeea97b, 0x002cc245, 0xeb1b7946,
+    0x04d91278, 0xf5d249f5, 0x1a1022cb, 0xf12799c8, 0x1ee5f2f6,
+    0xfc39e98f, 0x13fb82b1, 0xf8cc39b2, 0x170e528c, 0xc1ab88e9,
+    0x2e69e3d7, 0xc55e58d4, 0x2a9c33ea, 0xc8402893, 0x278243ad,
+    0xccb5f8ae, 0x23779390, 0xd27cc81d, 0x3dbea323, 0xd6891820,
+    0x394b731e, 0xdb976867, 0x34550359, 0xdf62b85a, 0x30a0d364,
+    0xa9580ad1, 0x469a61ef, 0xadaddaec, 0x426fb1d2, 0xa0b3aaab,
+    0x4f71c195, 0xa4467a96, 0x4b8411a8, 0xba8f4a25, 0x554d211b,
+    0xbe7a9a18, 0x51b8f126, 0xb364ea5f, 0x5ca68161, 0xb7913a62,
+    0x5853515c, 0x8ef68b39, 0x6134e007, 0x8a035b04, 0x65c1303a,
+    0x871d2b43, 0x68df407d, 0x83e8fb7e, 0x6c2a9040, 0x9d21cbcd,
+    0x72e3a0f3, 0x99d41bf0, 0x761670ce, 0x94ca6bb7, 0x7b080089,
+    0x903fbb8a, 0x7ffdd0b4, 0x78bf0ea1, 0x977d659f, 0x7c4ade9c,
+    0x9388b5a2, 0x7154aedb, 0x9e96c5e5, 0x75a17ee6, 0x9a6315d8,
+    0x6b684e55, 0x84aa256b, 0x6f9d9e68, 0x805ff556, 0x6283ee2f,
+    0x8d418511, 0x66763e12, 0x89b4552c, 0x5f118f49, 0xb0d3e477,
+    0x5be45f74, 0xb426344a, 0x56fa2f33, 0xb938440d, 0x520fff0e,
+    0xbdcd9430, 0x4cc6cfbd, 0xa304a483, 0x48331f80, 0xa7f174be,
+    0x452d6fc7, 0xaaef04f9, 0x41d8bffa, 0xae1ad4c4, 0x37e20d71,
+    0xd820664f, 0x3317dd4c, 0xdcd5b672, 0x3e09ad0b, 0xd1cbc635,
+    0x3afc7d36, 0xd53e1608, 0x24354d85, 0xcbf726bb, 0x20c09db8,
+    0xcf02f686, 0x2ddeedff, 0xc21c86c1, 0x292b3dc2, 0xc6e956fc,
+    0x104c8c99, 0xff8ee7a7, 0x14b95ca4, 0xfb7b379a, 0x19a72ce3,
+    0xf66547dd, 0x1d52fcde, 0xf29097e0, 0x039bcc6d, 0xec59a753,
+    0x076e1c50, 0xe8ac776e, 0x0a706c17, 0xe5b20729, 0x0e85bc2a,
+    0xe147d714},
+   {0x00000000, 0x177b1443, 0x2ef62886, 0x398d3cc5, 0x5dec510c,
+    0x4a97454f, 0x731a798a, 0x64616dc9, 0xbbd8a218, 0xaca3b65b,
+    0x952e8a9e, 0x82559edd, 0xe634f314, 0xf14fe757, 0xc8c2db92,
+    0xdfb9cfd1, 0xacc04271, 0xbbbb5632, 0x82366af7, 0x954d7eb4,
+    0xf12c137d, 0xe657073e, 0xdfda3bfb, 0xc8a12fb8, 0x1718e069,
+    0x0063f42a, 0x39eec8ef, 0x2e95dcac, 0x4af4b165, 0x5d8fa526,
+    0x640299e3, 0x73798da0, 0x82f182a3, 0x958a96e0, 0xac07aa25,
+    0xbb7cbe66, 0xdf1dd3af, 0xc866c7ec, 0xf1ebfb29, 0xe690ef6a,
+    0x392920bb, 0x2e5234f8, 0x17df083d, 0x00a41c7e, 0x64c571b7,
+    0x73be65f4, 0x4a335931, 0x5d484d72, 0x2e31c0d2, 0x394ad491,
+    0x00c7e854, 0x17bcfc17, 0x73dd91de, 0x64a6859d, 0x5d2bb958,
+    0x4a50ad1b, 0x95e962ca, 0x82927689, 0xbb1f4a4c, 0xac645e0f,
+    0xc80533c6, 0xdf7e2785, 0xe6f31b40, 0xf1880f03, 0xde920307,
+    0xc9e91744, 0xf0642b81, 0xe71f3fc2, 0x837e520b, 0x94054648,
+    0xad887a8d, 0xbaf36ece, 0x654aa11f, 0x7231b55c, 0x4bbc8999,
+    0x5cc79dda, 0x38a6f013, 0x2fdde450, 0x1650d895, 0x012bccd6,
+    0x72524176, 0x65295535, 0x5ca469f0, 0x4bdf7db3, 0x2fbe107a,
+    0x38c50439, 0x014838fc, 0x16332cbf, 0xc98ae36e, 0xdef1f72d,
+    0xe77ccbe8, 0xf007dfab, 0x9466b262, 0x831da621, 0xba909ae4,
+    0xadeb8ea7, 0x5c6381a4, 0x4b1895e7, 0x7295a922, 0x65eebd61,
+    0x018fd0a8, 0x16f4c4eb, 0x2f79f82e, 0x3802ec6d, 0xe7bb23bc,
+    0xf0c037ff, 0xc94d0b3a, 0xde361f79, 0xba5772b0, 0xad2c66f3,
+    0x94a15a36, 0x83da4e75, 0xf0a3c3d5, 0xe7d8d796, 0xde55eb53,
+    0xc92eff10, 0xad4f92d9, 0xba34869a, 0x83b9ba5f, 0x94c2ae1c,
+    0x4b7b61cd, 0x5c00758e, 0x658d494b, 0x72f65d08, 0x169730c1,
+    0x01ec2482, 0x38611847, 0x2f1a0c04, 0x6655004f, 0x712e140c,
+    0x48a328c9, 0x5fd83c8a, 0x3bb95143, 0x2cc24500, 0x154f79c5,
+    0x02346d86, 0xdd8da257, 0xcaf6b614, 0xf37b8ad1, 0xe4009e92,
+    0x8061f35b, 0x971ae718, 0xae97dbdd, 0xb9eccf9e, 0xca95423e,
+    0xddee567d, 0xe4636ab8, 0xf3187efb, 0x97791332, 0x80020771,
+    0xb98f3bb4, 0xaef42ff7, 0x714de026, 0x6636f465, 0x5fbbc8a0,
+    0x48c0dce3, 0x2ca1b12a, 0x3bdaa569, 0x025799ac, 0x152c8def,
+    0xe4a482ec, 0xf3df96af, 0xca52aa6a, 0xdd29be29, 0xb948d3e0,
+    0xae33c7a3, 0x97befb66, 0x80c5ef25, 0x5f7c20f4, 0x480734b7,
+    0x718a0872, 0x66f11c31, 0x029071f8, 0x15eb65bb, 0x2c66597e,
+    0x3b1d4d3d, 0x4864c09d, 0x5f1fd4de, 0x6692e81b, 0x71e9fc58,
+    0x15889191, 0x02f385d2, 0x3b7eb917, 0x2c05ad54, 0xf3bc6285,
+    0xe4c776c6, 0xdd4a4a03, 0xca315e40, 0xae503389, 0xb92b27ca,
+    0x80a61b0f, 0x97dd0f4c, 0xb8c70348, 0xafbc170b, 0x96312bce,
+    0x814a3f8d, 0xe52b5244, 0xf2504607, 0xcbdd7ac2, 0xdca66e81,
+    0x031fa150, 0x1464b513, 0x2de989d6, 0x3a929d95, 0x5ef3f05c,
+    0x4988e41f, 0x7005d8da, 0x677ecc99, 0x14074139, 0x037c557a,
+    0x3af169bf, 0x2d8a7dfc, 0x49eb1035, 0x5e900476, 0x671d38b3,
+    0x70662cf0, 0xafdfe321, 0xb8a4f762, 0x8129cba7, 0x9652dfe4,
+    0xf233b22d, 0xe548a66e, 0xdcc59aab, 0xcbbe8ee8, 0x3a3681eb,
+    0x2d4d95a8, 0x14c0a96d, 0x03bbbd2e, 0x67dad0e7, 0x70a1c4a4,
+    0x492cf861, 0x5e57ec22, 0x81ee23f3, 0x969537b0, 0xaf180b75,
+    0xb8631f36, 0xdc0272ff, 0xcb7966bc, 0xf2f45a79, 0xe58f4e3a,
+    0x96f6c39a, 0x818dd7d9, 0xb800eb1c, 0xaf7bff5f, 0xcb1a9296,
+    0xdc6186d5, 0xe5ecba10, 0xf297ae53, 0x2d2e6182, 0x3a5575c1,
+    0x03d84904, 0x14a35d47, 0x70c2308e, 0x67b924cd, 0x5e341808,
+    0x494f0c4b}};
+
+local const z_word_t FAR crc_braid_big_table[][256] = {
+   {0x0000000000000000, 0x43147b1700000000, 0x8628f62e00000000,
+    0xc53c8d3900000000, 0x0c51ec5d00000000, 0x4f45974a00000000,
+    0x8a791a7300000000, 0xc96d616400000000, 0x18a2d8bb00000000,
+    0x5bb6a3ac00000000, 0x9e8a2e9500000000, 0xdd9e558200000000,
+    0x14f334e600000000, 0x57e74ff100000000, 0x92dbc2c800000000,
+    0xd1cfb9df00000000, 0x7142c0ac00000000, 0x3256bbbb00000000,
+    0xf76a368200000000, 0xb47e4d9500000000, 0x7d132cf100000000,
+    0x3e0757e600000000, 0xfb3bdadf00000000, 0xb82fa1c800000000,
+    0x69e0181700000000, 0x2af4630000000000, 0xefc8ee3900000000,
+    0xacdc952e00000000, 0x65b1f44a00000000, 0x26a58f5d00000000,
+    0xe399026400000000, 0xa08d797300000000, 0xa382f18200000000,
+    0xe0968a9500000000, 0x25aa07ac00000000, 0x66be7cbb00000000,
+    0xafd31ddf00000000, 0xecc766c800000000, 0x29fbebf100000000,
+    0x6aef90e600000000, 0xbb20293900000000, 0xf834522e00000000,
+    0x3d08df1700000000, 0x7e1ca40000000000, 0xb771c56400000000,
+    0xf465be7300000000, 0x3159334a00000000, 0x724d485d00000000,
+    0xd2c0312e00000000, 0x91d44a3900000000, 0x54e8c70000000000,
+    0x17fcbc1700000000, 0xde91dd7300000000, 0x9d85a66400000000,
+    0x58b92b5d00000000, 0x1bad504a00000000, 0xca62e99500000000,
+    0x8976928200000000, 0x4c4a1fbb00000000, 0x0f5e64ac00000000,
+    0xc63305c800000000, 0x85277edf00000000, 0x401bf3e600000000,
+    0x030f88f100000000, 0x070392de00000000, 0x4417e9c900000000,
+    0x812b64f000000000, 0xc23f1fe700000000, 0x0b527e8300000000,
+    0x4846059400000000, 0x8d7a88ad00000000, 0xce6ef3ba00000000,
+    0x1fa14a6500000000, 0x5cb5317200000000, 0x9989bc4b00000000,
+    0xda9dc75c00000000, 0x13f0a63800000000, 0x50e4dd2f00000000,
+    0x95d8501600000000, 0xd6cc2b0100000000, 0x7641527200000000,
+    0x3555296500000000, 0xf069a45c00000000, 0xb37ddf4b00000000,
+    0x7a10be2f00000000, 0x3904c53800000000, 0xfc38480100000000,
+    0xbf2c331600000000, 0x6ee38ac900000000, 0x2df7f1de00000000,
+    0xe8cb7ce700000000, 0xabdf07f000000000, 0x62b2669400000000,
+    0x21a61d8300000000, 0xe49a90ba00000000, 0xa78eebad00000000,
+    0xa481635c00000000, 0xe795184b00000000, 0x22a9957200000000,
+    0x61bdee6500000000, 0xa8d08f0100000000, 0xebc4f41600000000,
+    0x2ef8792f00000000, 0x6dec023800000000, 0xbc23bbe700000000,
+    0xff37c0f000000000, 0x3a0b4dc900000000, 0x791f36de00000000,
+    0xb07257ba00000000, 0xf3662cad00000000, 0x365aa19400000000,
+    0x754eda8300000000, 0xd5c3a3f000000000, 0x96d7d8e700000000,
+    0x53eb55de00000000, 0x10ff2ec900000000, 0xd9924fad00000000,
+    0x9a8634ba00000000, 0x5fbab98300000000, 0x1caec29400000000,
+    0xcd617b4b00000000, 0x8e75005c00000000, 0x4b498d6500000000,
+    0x085df67200000000, 0xc130971600000000, 0x8224ec0100000000,
+    0x4718613800000000, 0x040c1a2f00000000, 0x4f00556600000000,
+    0x0c142e7100000000, 0xc928a34800000000, 0x8a3cd85f00000000,
+    0x4351b93b00000000, 0x0045c22c00000000, 0xc5794f1500000000,
+    0x866d340200000000, 0x57a28ddd00000000, 0x14b6f6ca00000000,
+    0xd18a7bf300000000, 0x929e00e400000000, 0x5bf3618000000000,
+    0x18e71a9700000000, 0xdddb97ae00000000, 0x9ecfecb900000000,
+    0x3e4295ca00000000, 0x7d56eedd00000000, 0xb86a63e400000000,
+    0xfb7e18f300000000, 0x3213799700000000, 0x7107028000000000,
+    0xb43b8fb900000000, 0xf72ff4ae00000000, 0x26e04d7100000000,
+    0x65f4366600000000, 0xa0c8bb5f00000000, 0xe3dcc04800000000,
+    0x2ab1a12c00000000, 0x69a5da3b00000000, 0xac99570200000000,
+    0xef8d2c1500000000, 0xec82a4e400000000, 0xaf96dff300000000,
+    0x6aaa52ca00000000, 0x29be29dd00000000, 0xe0d348b900000000,
+    0xa3c733ae00000000, 0x66fbbe9700000000, 0x25efc58000000000,
+    0xf4207c5f00000000, 0xb734074800000000, 0x72088a7100000000,
+    0x311cf16600000000, 0xf871900200000000, 0xbb65eb1500000000,
+    0x7e59662c00000000, 0x3d4d1d3b00000000, 0x9dc0644800000000,
+    0xded41f5f00000000, 0x1be8926600000000, 0x58fce97100000000,
+    0x9191881500000000, 0xd285f30200000000, 0x17b97e3b00000000,
+    0x54ad052c00000000, 0x8562bcf300000000, 0xc676c7e400000000,
+    0x034a4add00000000, 0x405e31ca00000000, 0x893350ae00000000,
+    0xca272bb900000000, 0x0f1ba68000000000, 0x4c0fdd9700000000,
+    0x4803c7b800000000, 0x0b17bcaf00000000, 0xce2b319600000000,
+    0x8d3f4a8100000000, 0x44522be500000000, 0x074650f200000000,
+    0xc27addcb00000000, 0x816ea6dc00000000, 0x50a11f0300000000,
+    0x13b5641400000000, 0xd689e92d00000000, 0x959d923a00000000,
+    0x5cf0f35e00000000, 0x1fe4884900000000, 0xdad8057000000000,
+    0x99cc7e6700000000, 0x3941071400000000, 0x7a557c0300000000,
+    0xbf69f13a00000000, 0xfc7d8a2d00000000, 0x3510eb4900000000,
+    0x7604905e00000000, 0xb3381d6700000000, 0xf02c667000000000,
+    0x21e3dfaf00000000, 0x62f7a4b800000000, 0xa7cb298100000000,
+    0xe4df529600000000, 0x2db233f200000000, 0x6ea648e500000000,
+    0xab9ac5dc00000000, 0xe88ebecb00000000, 0xeb81363a00000000,
+    0xa8954d2d00000000, 0x6da9c01400000000, 0x2ebdbb0300000000,
+    0xe7d0da6700000000, 0xa4c4a17000000000, 0x61f82c4900000000,
+    0x22ec575e00000000, 0xf323ee8100000000, 0xb037959600000000,
+    0x750b18af00000000, 0x361f63b800000000, 0xff7202dc00000000,
+    0xbc6679cb00000000, 0x795af4f200000000, 0x3a4e8fe500000000,
+    0x9ac3f69600000000, 0xd9d78d8100000000, 0x1ceb00b800000000,
+    0x5fff7baf00000000, 0x96921acb00000000, 0xd58661dc00000000,
+    0x10baece500000000, 0x53ae97f200000000, 0x82612e2d00000000,
+    0xc175553a00000000, 0x0449d80300000000, 0x475da31400000000,
+    0x8e30c27000000000, 0xcd24b96700000000, 0x0818345e00000000,
+    0x4b0c4f4900000000},
+   {0x0000000000000000, 0x3e6bc2ef00000000, 0x3dd0f50400000000,
+    0x03bb37eb00000000, 0x7aa0eb0900000000, 0x44cb29e600000000,
+    0x47701e0d00000000, 0x791bdce200000000, 0xf440d71300000000,
+    0xca2b15fc00000000, 0xc990221700000000, 0xf7fbe0f800000000,
+    0x8ee03c1a00000000, 0xb08bfef500000000, 0xb330c91e00000000,
+    0x8d5b0bf100000000, 0xe881ae2700000000, 0xd6ea6cc800000000,
+    0xd5515b2300000000, 0xeb3a99cc00000000, 0x9221452e00000000,
+    0xac4a87c100000000, 0xaff1b02a00000000, 0x919a72c500000000,
+    0x1cc1793400000000, 0x22aabbdb00000000, 0x21118c3000000000,
+    0x1f7a4edf00000000, 0x6661923d00000000, 0x580a50d200000000,
+    0x5bb1673900000000, 0x65daa5d600000000, 0xd0035d4f00000000,
+    0xee689fa000000000, 0xedd3a84b00000000, 0xd3b86aa400000000,
+    0xaaa3b64600000000, 0x94c874a900000000, 0x9773434200000000,
+    0xa91881ad00000000, 0x24438a5c00000000, 0x1a2848b300000000,
+    0x19937f5800000000, 0x27f8bdb700000000, 0x5ee3615500000000,
+    0x6088a3ba00000000, 0x6333945100000000, 0x5d5856be00000000,
+    0x3882f36800000000, 0x06e9318700000000, 0x0552066c00000000,
+    0x3b39c48300000000, 0x4222186100000000, 0x7c49da8e00000000,
+    0x7ff2ed6500000000, 0x41992f8a00000000, 0xccc2247b00000000,
+    0xf2a9e69400000000, 0xf112d17f00000000, 0xcf79139000000000,
+    0xb662cf7200000000, 0x88090d9d00000000, 0x8bb23a7600000000,
+    0xb5d9f89900000000, 0xa007ba9e00000000, 0x9e6c787100000000,
+    0x9dd74f9a00000000, 0xa3bc8d7500000000, 0xdaa7519700000000,
+    0xe4cc937800000000, 0xe777a49300000000, 0xd91c667c00000000,
+    0x54476d8d00000000, 0x6a2caf6200000000, 0x6997988900000000,
+    0x57fc5a6600000000, 0x2ee7868400000000, 0x108c446b00000000,
+    0x1337738000000000, 0x2d5cb16f00000000, 0x488614b900000000,
+    0x76edd65600000000, 0x7556e1bd00000000, 0x4b3d235200000000,
+    0x3226ffb000000000, 0x0c4d3d5f00000000, 0x0ff60ab400000000,
+    0x319dc85b00000000, 0xbcc6c3aa00000000, 0x82ad014500000000,
+    0x811636ae00000000, 0xbf7df44100000000, 0xc66628a300000000,
+    0xf80dea4c00000000, 0xfbb6dda700000000, 0xc5dd1f4800000000,
+    0x7004e7d100000000, 0x4e6f253e00000000, 0x4dd412d500000000,
+    0x73bfd03a00000000, 0x0aa40cd800000000, 0x34cfce3700000000,
+    0x3774f9dc00000000, 0x091f3b3300000000, 0x844430c200000000,
+    0xba2ff22d00000000, 0xb994c5c600000000, 0x87ff072900000000,
+    0xfee4dbcb00000000, 0xc08f192400000000, 0xc3342ecf00000000,
+    0xfd5fec2000000000, 0x988549f600000000, 0xa6ee8b1900000000,
+    0xa555bcf200000000, 0x9b3e7e1d00000000, 0xe225a2ff00000000,
+    0xdc4e601000000000, 0xdff557fb00000000, 0xe19e951400000000,
+    0x6cc59ee500000000, 0x52ae5c0a00000000, 0x51156be100000000,
+    0x6f7ea90e00000000, 0x166575ec00000000, 0x280eb70300000000,
+    0x2bb580e800000000, 0x15de420700000000, 0x010905e600000000,
+    0x3f62c70900000000, 0x3cd9f0e200000000, 0x02b2320d00000000,
+    0x7ba9eeef00000000, 0x45c22c0000000000, 0x46791beb00000000,
+    0x7812d90400000000, 0xf549d2f500000000, 0xcb22101a00000000,
+    0xc89927f100000000, 0xf6f2e51e00000000, 0x8fe939fc00000000,
+    0xb182fb1300000000, 0xb239ccf800000000, 0x8c520e1700000000,
+    0xe988abc100000000, 0xd7e3692e00000000, 0xd4585ec500000000,
+    0xea339c2a00000000, 0x932840c800000000, 0xad43822700000000,
+    0xaef8b5cc00000000, 0x9093772300000000, 0x1dc87cd200000000,
+    0x23a3be3d00000000, 0x201889d600000000, 0x1e734b3900000000,
+    0x676897db00000000, 0x5903553400000000, 0x5ab862df00000000,
+    0x64d3a03000000000, 0xd10a58a900000000, 0xef619a4600000000,
+    0xecdaadad00000000, 0xd2b16f4200000000, 0xabaab3a000000000,
+    0x95c1714f00000000, 0x967a46a400000000, 0xa811844b00000000,
+    0x254a8fba00000000, 0x1b214d5500000000, 0x189a7abe00000000,
+    0x26f1b85100000000, 0x5fea64b300000000, 0x6181a65c00000000,
+    0x623a91b700000000, 0x5c51535800000000, 0x398bf68e00000000,
+    0x07e0346100000000, 0x045b038a00000000, 0x3a30c16500000000,
+    0x432b1d8700000000, 0x7d40df6800000000, 0x7efbe88300000000,
+    0x40902a6c00000000, 0xcdcb219d00000000, 0xf3a0e37200000000,
+    0xf01bd49900000000, 0xce70167600000000, 0xb76bca9400000000,
+    0x8900087b00000000, 0x8abb3f9000000000, 0xb4d0fd7f00000000,
+    0xa10ebf7800000000, 0x9f657d9700000000, 0x9cde4a7c00000000,
+    0xa2b5889300000000, 0xdbae547100000000, 0xe5c5969e00000000,
+    0xe67ea17500000000, 0xd815639a00000000, 0x554e686b00000000,
+    0x6b25aa8400000000, 0x689e9d6f00000000, 0x56f55f8000000000,
+    0x2fee836200000000, 0x1185418d00000000, 0x123e766600000000,
+    0x2c55b48900000000, 0x498f115f00000000, 0x77e4d3b000000000,
+    0x745fe45b00000000, 0x4a3426b400000000, 0x332ffa5600000000,
+    0x0d4438b900000000, 0x0eff0f5200000000, 0x3094cdbd00000000,
+    0xbdcfc64c00000000, 0x83a404a300000000, 0x801f334800000000,
+    0xbe74f1a700000000, 0xc76f2d4500000000, 0xf904efaa00000000,
+    0xfabfd84100000000, 0xc4d41aae00000000, 0x710de23700000000,
+    0x4f6620d800000000, 0x4cdd173300000000, 0x72b6d5dc00000000,
+    0x0bad093e00000000, 0x35c6cbd100000000, 0x367dfc3a00000000,
+    0x08163ed500000000, 0x854d352400000000, 0xbb26f7cb00000000,
+    0xb89dc02000000000, 0x86f602cf00000000, 0xffedde2d00000000,
+    0xc1861cc200000000, 0xc23d2b2900000000, 0xfc56e9c600000000,
+    0x998c4c1000000000, 0xa7e78eff00000000, 0xa45cb91400000000,
+    0x9a377bfb00000000, 0xe32ca71900000000, 0xdd4765f600000000,
+    0xdefc521d00000000, 0xe09790f200000000, 0x6dcc9b0300000000,
+    0x53a759ec00000000, 0x501c6e0700000000, 0x6e77ace800000000,
+    0x176c700a00000000, 0x2907b2e500000000, 0x2abc850e00000000,
+    0x14d747e100000000},
+   {0x0000000000000000, 0xc0df8ec100000000, 0xc1b96c5800000000,
+    0x0166e29900000000, 0x8273d9b000000000, 0x42ac577100000000,
+    0x43cab5e800000000, 0x83153b2900000000, 0x45e1c3ba00000000,
+    0x853e4d7b00000000, 0x8458afe200000000, 0x4487212300000000,
+    0xc7921a0a00000000, 0x074d94cb00000000, 0x062b765200000000,
+    0xc6f4f89300000000, 0xcbc4f6ae00000000, 0x0b1b786f00000000,
+    0x0a7d9af600000000, 0xcaa2143700000000, 0x49b72f1e00000000,
+    0x8968a1df00000000, 0x880e434600000000, 0x48d1cd8700000000,
+    0x8e25351400000000, 0x4efabbd500000000, 0x4f9c594c00000000,
+    0x8f43d78d00000000, 0x0c56eca400000000, 0xcc89626500000000,
+    0xcdef80fc00000000, 0x0d300e3d00000000, 0xd78f9c8600000000,
+    0x1750124700000000, 0x1636f0de00000000, 0xd6e97e1f00000000,
+    0x55fc453600000000, 0x9523cbf700000000, 0x9445296e00000000,
+    0x549aa7af00000000, 0x926e5f3c00000000, 0x52b1d1fd00000000,
+    0x53d7336400000000, 0x9308bda500000000, 0x101d868c00000000,
+    0xd0c2084d00000000, 0xd1a4ead400000000, 0x117b641500000000,
+    0x1c4b6a2800000000, 0xdc94e4e900000000, 0xddf2067000000000,
+    0x1d2d88b100000000, 0x9e38b39800000000, 0x5ee73d5900000000,
+    0x5f81dfc000000000, 0x9f5e510100000000, 0x59aaa99200000000,
+    0x9975275300000000, 0x9813c5ca00000000, 0x58cc4b0b00000000,
+    0xdbd9702200000000, 0x1b06fee300000000, 0x1a601c7a00000000,
+    0xdabf92bb00000000, 0xef1948d600000000, 0x2fc6c61700000000,
+    0x2ea0248e00000000, 0xee7faa4f00000000, 0x6d6a916600000000,
+    0xadb51fa700000000, 0xacd3fd3e00000000, 0x6c0c73ff00000000,
+    0xaaf88b6c00000000, 0x6a2705ad00000000, 0x6b41e73400000000,
+    0xab9e69f500000000, 0x288b52dc00000000, 0xe854dc1d00000000,
+    0xe9323e8400000000, 0x29edb04500000000, 0x24ddbe7800000000,
+    0xe40230b900000000, 0xe564d22000000000, 0x25bb5ce100000000,
+    0xa6ae67c800000000, 0x6671e90900000000, 0x67170b9000000000,
+    0xa7c8855100000000, 0x613c7dc200000000, 0xa1e3f30300000000,
+    0xa085119a00000000, 0x605a9f5b00000000, 0xe34fa47200000000,
+    0x23902ab300000000, 0x22f6c82a00000000, 0xe22946eb00000000,
+    0x3896d45000000000, 0xf8495a9100000000, 0xf92fb80800000000,
+    0x39f036c900000000, 0xbae50de000000000, 0x7a3a832100000000,
+    0x7b5c61b800000000, 0xbb83ef7900000000, 0x7d7717ea00000000,
+    0xbda8992b00000000, 0xbcce7bb200000000, 0x7c11f57300000000,
+    0xff04ce5a00000000, 0x3fdb409b00000000, 0x3ebda20200000000,
+    0xfe622cc300000000, 0xf35222fe00000000, 0x338dac3f00000000,
+    0x32eb4ea600000000, 0xf234c06700000000, 0x7121fb4e00000000,
+    0xb1fe758f00000000, 0xb098971600000000, 0x704719d700000000,
+    0xb6b3e14400000000, 0x766c6f8500000000, 0x770a8d1c00000000,
+    0xb7d503dd00000000, 0x34c038f400000000, 0xf41fb63500000000,
+    0xf57954ac00000000, 0x35a6da6d00000000, 0x9f35e17700000000,
+    0x5fea6fb600000000, 0x5e8c8d2f00000000, 0x9e5303ee00000000,
+    0x1d4638c700000000, 0xdd99b60600000000, 0xdcff549f00000000,
+    0x1c20da5e00000000, 0xdad422cd00000000, 0x1a0bac0c00000000,
+    0x1b6d4e9500000000, 0xdbb2c05400000000, 0x58a7fb7d00000000,
+    0x987875bc00000000, 0x991e972500000000, 0x59c119e400000000,
+    0x54f117d900000000, 0x942e991800000000, 0x95487b8100000000,
+    0x5597f54000000000, 0xd682ce6900000000, 0x165d40a800000000,
+    0x173ba23100000000, 0xd7e42cf000000000, 0x1110d46300000000,
+    0xd1cf5aa200000000, 0xd0a9b83b00000000, 0x107636fa00000000,
+    0x93630dd300000000, 0x53bc831200000000, 0x52da618b00000000,
+    0x9205ef4a00000000, 0x48ba7df100000000, 0x8865f33000000000,
+    0x890311a900000000, 0x49dc9f6800000000, 0xcac9a44100000000,
+    0x0a162a8000000000, 0x0b70c81900000000, 0xcbaf46d800000000,
+    0x0d5bbe4b00000000, 0xcd84308a00000000, 0xcce2d21300000000,
+    0x0c3d5cd200000000, 0x8f2867fb00000000, 0x4ff7e93a00000000,
+    0x4e910ba300000000, 0x8e4e856200000000, 0x837e8b5f00000000,
+    0x43a1059e00000000, 0x42c7e70700000000, 0x821869c600000000,
+    0x010d52ef00000000, 0xc1d2dc2e00000000, 0xc0b43eb700000000,
+    0x006bb07600000000, 0xc69f48e500000000, 0x0640c62400000000,
+    0x072624bd00000000, 0xc7f9aa7c00000000, 0x44ec915500000000,
+    0x84331f9400000000, 0x8555fd0d00000000, 0x458a73cc00000000,
+    0x702ca9a100000000, 0xb0f3276000000000, 0xb195c5f900000000,
+    0x714a4b3800000000, 0xf25f701100000000, 0x3280fed000000000,
+    0x33e61c4900000000, 0xf339928800000000, 0x35cd6a1b00000000,
+    0xf512e4da00000000, 0xf474064300000000, 0x34ab888200000000,
+    0xb7beb3ab00000000, 0x77613d6a00000000, 0x7607dff300000000,
+    0xb6d8513200000000, 0xbbe85f0f00000000, 0x7b37d1ce00000000,
+    0x7a51335700000000, 0xba8ebd9600000000, 0x399b86bf00000000,
+    0xf944087e00000000, 0xf822eae700000000, 0x38fd642600000000,
+    0xfe099cb500000000, 0x3ed6127400000000, 0x3fb0f0ed00000000,
+    0xff6f7e2c00000000, 0x7c7a450500000000, 0xbca5cbc400000000,
+    0xbdc3295d00000000, 0x7d1ca79c00000000, 0xa7a3352700000000,
+    0x677cbbe600000000, 0x661a597f00000000, 0xa6c5d7be00000000,
+    0x25d0ec9700000000, 0xe50f625600000000, 0xe46980cf00000000,
+    0x24b60e0e00000000, 0xe242f69d00000000, 0x229d785c00000000,
+    0x23fb9ac500000000, 0xe324140400000000, 0x60312f2d00000000,
+    0xa0eea1ec00000000, 0xa188437500000000, 0x6157cdb400000000,
+    0x6c67c38900000000, 0xacb84d4800000000, 0xaddeafd100000000,
+    0x6d01211000000000, 0xee141a3900000000, 0x2ecb94f800000000,
+    0x2fad766100000000, 0xef72f8a000000000, 0x2986003300000000,
+    0xe9598ef200000000, 0xe83f6c6b00000000, 0x28e0e2aa00000000,
+    0xabf5d98300000000, 0x6b2a574200000000, 0x6a4cb5db00000000,
+    0xaa933b1a00000000},
+   {0x0000000000000000, 0x6f4ca59b00000000, 0x9f9e3bec00000000,
+    0xf0d29e7700000000, 0x7f3b060300000000, 0x1077a39800000000,
+    0xe0a53def00000000, 0x8fe9987400000000, 0xfe760c0600000000,
+    0x913aa99d00000000, 0x61e837ea00000000, 0x0ea4927100000000,
+    0x814d0a0500000000, 0xee01af9e00000000, 0x1ed331e900000000,
+    0x719f947200000000, 0xfced180c00000000, 0x93a1bd9700000000,
+    0x637323e000000000, 0x0c3f867b00000000, 0x83d61e0f00000000,
+    0xec9abb9400000000, 0x1c4825e300000000, 0x7304807800000000,
+    0x029b140a00000000, 0x6dd7b19100000000, 0x9d052fe600000000,
+    0xf2498a7d00000000, 0x7da0120900000000, 0x12ecb79200000000,
+    0xe23e29e500000000, 0x8d728c7e00000000, 0xf8db311800000000,
+    0x9797948300000000, 0x67450af400000000, 0x0809af6f00000000,
+    0x87e0371b00000000, 0xe8ac928000000000, 0x187e0cf700000000,
+    0x7732a96c00000000, 0x06ad3d1e00000000, 0x69e1988500000000,
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+    0xecca7d6200000000, 0x041186db00000000, 0x1e1e874000000000,
+    0xf6c57cf900000000, 0x8faf01e800000000, 0x6774fa5100000000,
+    0xfab7720500000000, 0x126c89bc00000000, 0x6b06f4ad00000000,
+    0x83dd0f1400000000, 0x99d20e8f00000000, 0x7109f53600000000,
+    0x0863882700000000, 0xe0b8739e00000000, 0x32e4998e00000000,
+    0xda3f623700000000, 0xa3551f2600000000, 0x4b8ee49f00000000,
+    0x5181e50400000000, 0xb95a1ebd00000000, 0xc03063ac00000000,
+    0x28eb981500000000, 0xb528104100000000, 0x5df3ebf800000000,
+    0x249996e900000000, 0xcc426d5000000000, 0xd64d6ccb00000000,
+    0x3e96977200000000, 0x47fcea6300000000, 0xaf2711da00000000,
+    0xe3453e4200000000, 0x0b9ec5fb00000000, 0x72f4b8ea00000000,
+    0x9a2f435300000000, 0x802042c800000000, 0x68fbb97100000000,
+    0x1191c46000000000, 0xf94a3fd900000000, 0x6489b78d00000000,
+    0x8c524c3400000000, 0xf538312500000000, 0x1de3ca9c00000000,
+    0x07eccb0700000000, 0xef3730be00000000, 0x965d4daf00000000,
+    0x7e86b61600000000, 0xacda5c0600000000, 0x4401a7bf00000000,
+    0x3d6bdaae00000000, 0xd5b0211700000000, 0xcfbf208c00000000,
+    0x2764db3500000000, 0x5e0ea62400000000, 0xb6d55d9d00000000,
+    0x2b16d5c900000000, 0xc3cd2e7000000000, 0xbaa7536100000000,
+    0x527ca8d800000000, 0x4873a94300000000, 0xa0a852fa00000000,
+    0xd9c22feb00000000, 0x3119d45200000000, 0xbbf0874e00000000,
+    0x532b7cf700000000, 0x2a4101e600000000, 0xc29afa5f00000000,
+    0xd895fbc400000000, 0x304e007d00000000, 0x49247d6c00000000,
+    0xa1ff86d500000000, 0x3c3c0e8100000000, 0xd4e7f53800000000,
+    0xad8d882900000000, 0x4556739000000000, 0x5f59720b00000000,
+    0xb78289b200000000, 0xcee8f4a300000000, 0x26330f1a00000000,
+    0xf46fe50a00000000, 0x1cb41eb300000000, 0x65de63a200000000,
+    0x8d05981b00000000, 0x970a998000000000, 0x7fd1623900000000,
+    0x06bb1f2800000000, 0xee60e49100000000, 0x73a36cc500000000,
+    0x9b78977c00000000, 0xe212ea6d00000000, 0x0ac911d400000000,
+    0x10c6104f00000000, 0xf81debf600000000, 0x817796e700000000,
+    0x69ac6d5e00000000, 0x25ce42c600000000, 0xcd15b97f00000000,
+    0xb47fc46e00000000, 0x5ca43fd700000000, 0x46ab3e4c00000000,
+    0xae70c5f500000000, 0xd71ab8e400000000, 0x3fc1435d00000000,
+    0xa202cb0900000000, 0x4ad930b000000000, 0x33b34da100000000,
+    0xdb68b61800000000, 0xc167b78300000000, 0x29bc4c3a00000000,
+    0x50d6312b00000000, 0xb80dca9200000000, 0x6a51208200000000,
+    0x828adb3b00000000, 0xfbe0a62a00000000, 0x133b5d9300000000,
+    0x09345c0800000000, 0xe1efa7b100000000, 0x9885daa000000000,
+    0x705e211900000000, 0xed9da94d00000000, 0x054652f400000000,
+    0x7c2c2fe500000000, 0x94f7d45c00000000, 0x8ef8d5c700000000,
+    0x66232e7e00000000, 0x1f49536f00000000, 0xf792a8d600000000,
+    0xc68b7c8400000000, 0x2e50873d00000000, 0x573afa2c00000000,
+    0xbfe1019500000000, 0xa5ee000e00000000, 0x4d35fbb700000000,
+    0x345f86a600000000, 0xdc847d1f00000000, 0x4147f54b00000000,
+    0xa99c0ef200000000, 0xd0f673e300000000, 0x382d885a00000000,
+    0x222289c100000000, 0xcaf9727800000000, 0xb3930f6900000000,
+    0x5b48f4d000000000, 0x89141ec000000000, 0x61cfe57900000000,
+    0x18a5986800000000, 0xf07e63d100000000, 0xea71624a00000000,
+    0x02aa99f300000000, 0x7bc0e4e200000000, 0x931b1f5b00000000,
+    0x0ed8970f00000000, 0xe6036cb600000000, 0x9f6911a700000000,
+    0x77b2ea1e00000000, 0x6dbdeb8500000000, 0x8566103c00000000,
+    0xfc0c6d2d00000000, 0x14d7969400000000, 0x58b5b90c00000000,
+    0xb06e42b500000000, 0xc9043fa400000000, 0x21dfc41d00000000,
+    0x3bd0c58600000000, 0xd30b3e3f00000000, 0xaa61432e00000000,
+    0x42bab89700000000, 0xdf7930c300000000, 0x37a2cb7a00000000,
+    0x4ec8b66b00000000, 0xa6134dd200000000, 0xbc1c4c4900000000,
+    0x54c7b7f000000000, 0x2dadcae100000000, 0xc576315800000000,
+    0x172adb4800000000, 0xfff120f100000000, 0x869b5de000000000,
+    0x6e40a65900000000, 0x744fa7c200000000, 0x9c945c7b00000000,
+    0xe5fe216a00000000, 0x0d25dad300000000, 0x90e6528700000000,
+    0x783da93e00000000, 0x0157d42f00000000, 0xe98c2f9600000000,
+    0xf3832e0d00000000, 0x1b58d5b400000000, 0x6232a8a500000000,
+    0x8ae9531c00000000},
+   {0x0000000000000000, 0x919168ae00000000, 0x6325a08700000000,
+    0xf2b4c82900000000, 0x874c31d400000000, 0x16dd597a00000000,
+    0xe469915300000000, 0x75f8f9fd00000000, 0x4f9f137300000000,
+    0xde0e7bdd00000000, 0x2cbab3f400000000, 0xbd2bdb5a00000000,
+    0xc8d322a700000000, 0x59424a0900000000, 0xabf6822000000000,
+    0x3a67ea8e00000000, 0x9e3e27e600000000, 0x0faf4f4800000000,
+    0xfd1b876100000000, 0x6c8aefcf00000000, 0x1972163200000000,
+    0x88e37e9c00000000, 0x7a57b6b500000000, 0xebc6de1b00000000,
+    0xd1a1349500000000, 0x40305c3b00000000, 0xb284941200000000,
+    0x2315fcbc00000000, 0x56ed054100000000, 0xc77c6def00000000,
+    0x35c8a5c600000000, 0xa459cd6800000000, 0x7d7b3f1700000000,
+    0xecea57b900000000, 0x1e5e9f9000000000, 0x8fcff73e00000000,
+    0xfa370ec300000000, 0x6ba6666d00000000, 0x9912ae4400000000,
+    0x0883c6ea00000000, 0x32e42c6400000000, 0xa37544ca00000000,
+    0x51c18ce300000000, 0xc050e44d00000000, 0xb5a81db000000000,
+    0x2439751e00000000, 0xd68dbd3700000000, 0x471cd59900000000,
+    0xe34518f100000000, 0x72d4705f00000000, 0x8060b87600000000,
+    0x11f1d0d800000000, 0x6409292500000000, 0xf598418b00000000,
+    0x072c89a200000000, 0x96bde10c00000000, 0xacda0b8200000000,
+    0x3d4b632c00000000, 0xcfffab0500000000, 0x5e6ec3ab00000000,
+    0x2b963a5600000000, 0xba0752f800000000, 0x48b39ad100000000,
+    0xd922f27f00000000, 0xfaf67e2e00000000, 0x6b67168000000000,
+    0x99d3dea900000000, 0x0842b60700000000, 0x7dba4ffa00000000,
+    0xec2b275400000000, 0x1e9fef7d00000000, 0x8f0e87d300000000,
+    0xb5696d5d00000000, 0x24f805f300000000, 0xd64ccdda00000000,
+    0x47dda57400000000, 0x32255c8900000000, 0xa3b4342700000000,
+    0x5100fc0e00000000, 0xc09194a000000000, 0x64c859c800000000,
+    0xf559316600000000, 0x07edf94f00000000, 0x967c91e100000000,
+    0xe384681c00000000, 0x721500b200000000, 0x80a1c89b00000000,
+    0x1130a03500000000, 0x2b574abb00000000, 0xbac6221500000000,
+    0x4872ea3c00000000, 0xd9e3829200000000, 0xac1b7b6f00000000,
+    0x3d8a13c100000000, 0xcf3edbe800000000, 0x5eafb34600000000,
+    0x878d413900000000, 0x161c299700000000, 0xe4a8e1be00000000,
+    0x7539891000000000, 0x00c170ed00000000, 0x9150184300000000,
+    0x63e4d06a00000000, 0xf275b8c400000000, 0xc812524a00000000,
+    0x59833ae400000000, 0xab37f2cd00000000, 0x3aa69a6300000000,
+    0x4f5e639e00000000, 0xdecf0b3000000000, 0x2c7bc31900000000,
+    0xbdeaabb700000000, 0x19b366df00000000, 0x88220e7100000000,
+    0x7a96c65800000000, 0xeb07aef600000000, 0x9eff570b00000000,
+    0x0f6e3fa500000000, 0xfddaf78c00000000, 0x6c4b9f2200000000,
+    0x562c75ac00000000, 0xc7bd1d0200000000, 0x3509d52b00000000,
+    0xa498bd8500000000, 0xd160447800000000, 0x40f12cd600000000,
+    0xb245e4ff00000000, 0x23d48c5100000000, 0xf4edfd5c00000000,
+    0x657c95f200000000, 0x97c85ddb00000000, 0x0659357500000000,
+    0x73a1cc8800000000, 0xe230a42600000000, 0x10846c0f00000000,
+    0x811504a100000000, 0xbb72ee2f00000000, 0x2ae3868100000000,
+    0xd8574ea800000000, 0x49c6260600000000, 0x3c3edffb00000000,
+    0xadafb75500000000, 0x5f1b7f7c00000000, 0xce8a17d200000000,
+    0x6ad3daba00000000, 0xfb42b21400000000, 0x09f67a3d00000000,
+    0x9867129300000000, 0xed9feb6e00000000, 0x7c0e83c000000000,
+    0x8eba4be900000000, 0x1f2b234700000000, 0x254cc9c900000000,
+    0xb4dda16700000000, 0x4669694e00000000, 0xd7f801e000000000,
+    0xa200f81d00000000, 0x339190b300000000, 0xc125589a00000000,
+    0x50b4303400000000, 0x8996c24b00000000, 0x1807aae500000000,
+    0xeab362cc00000000, 0x7b220a6200000000, 0x0edaf39f00000000,
+    0x9f4b9b3100000000, 0x6dff531800000000, 0xfc6e3bb600000000,
+    0xc609d13800000000, 0x5798b99600000000, 0xa52c71bf00000000,
+    0x34bd191100000000, 0x4145e0ec00000000, 0xd0d4884200000000,
+    0x2260406b00000000, 0xb3f128c500000000, 0x17a8e5ad00000000,
+    0x86398d0300000000, 0x748d452a00000000, 0xe51c2d8400000000,
+    0x90e4d47900000000, 0x0175bcd700000000, 0xf3c174fe00000000,
+    0x62501c5000000000, 0x5837f6de00000000, 0xc9a69e7000000000,
+    0x3b12565900000000, 0xaa833ef700000000, 0xdf7bc70a00000000,
+    0x4eeaafa400000000, 0xbc5e678d00000000, 0x2dcf0f2300000000,
+    0x0e1b837200000000, 0x9f8aebdc00000000, 0x6d3e23f500000000,
+    0xfcaf4b5b00000000, 0x8957b2a600000000, 0x18c6da0800000000,
+    0xea72122100000000, 0x7be37a8f00000000, 0x4184900100000000,
+    0xd015f8af00000000, 0x22a1308600000000, 0xb330582800000000,
+    0xc6c8a1d500000000, 0x5759c97b00000000, 0xa5ed015200000000,
+    0x347c69fc00000000, 0x9025a49400000000, 0x01b4cc3a00000000,
+    0xf300041300000000, 0x62916cbd00000000, 0x1769954000000000,
+    0x86f8fdee00000000, 0x744c35c700000000, 0xe5dd5d6900000000,
+    0xdfbab7e700000000, 0x4e2bdf4900000000, 0xbc9f176000000000,
+    0x2d0e7fce00000000, 0x58f6863300000000, 0xc967ee9d00000000,
+    0x3bd326b400000000, 0xaa424e1a00000000, 0x7360bc6500000000,
+    0xe2f1d4cb00000000, 0x10451ce200000000, 0x81d4744c00000000,
+    0xf42c8db100000000, 0x65bde51f00000000, 0x97092d3600000000,
+    0x0698459800000000, 0x3cffaf1600000000, 0xad6ec7b800000000,
+    0x5fda0f9100000000, 0xce4b673f00000000, 0xbbb39ec200000000,
+    0x2a22f66c00000000, 0xd8963e4500000000, 0x490756eb00000000,
+    0xed5e9b8300000000, 0x7ccff32d00000000, 0x8e7b3b0400000000,
+    0x1fea53aa00000000, 0x6a12aa5700000000, 0xfb83c2f900000000,
+    0x09370ad000000000, 0x98a6627e00000000, 0xa2c188f000000000,
+    0x3350e05e00000000, 0xc1e4287700000000, 0x507540d900000000,
+    0x258db92400000000, 0xb41cd18a00000000, 0x46a819a300000000,
+    0xd739710d00000000}};
+
+#else /* W == 4 */
+
+local const z_crc_t FAR crc_braid_table[][256] = {
+   {0x00000000, 0xccaa009e, 0x4225077d, 0x8e8f07e3, 0x844a0efa,
+    0x48e00e64, 0xc66f0987, 0x0ac50919, 0xd3e51bb5, 0x1f4f1b2b,
+    0x91c01cc8, 0x5d6a1c56, 0x57af154f, 0x9b0515d1, 0x158a1232,
+    0xd92012ac, 0x7cbb312b, 0xb01131b5, 0x3e9e3656, 0xf23436c8,
+    0xf8f13fd1, 0x345b3f4f, 0xbad438ac, 0x767e3832, 0xaf5e2a9e,
+    0x63f42a00, 0xed7b2de3, 0x21d12d7d, 0x2b142464, 0xe7be24fa,
+    0x69312319, 0xa59b2387, 0xf9766256, 0x35dc62c8, 0xbb53652b,
+    0x77f965b5, 0x7d3c6cac, 0xb1966c32, 0x3f196bd1, 0xf3b36b4f,
+    0x2a9379e3, 0xe639797d, 0x68b67e9e, 0xa41c7e00, 0xaed97719,
+    0x62737787, 0xecfc7064, 0x205670fa, 0x85cd537d, 0x496753e3,
+    0xc7e85400, 0x0b42549e, 0x01875d87, 0xcd2d5d19, 0x43a25afa,
+    0x8f085a64, 0x562848c8, 0x9a824856, 0x140d4fb5, 0xd8a74f2b,
+    0xd2624632, 0x1ec846ac, 0x9047414f, 0x5ced41d1, 0x299dc2ed,
+    0xe537c273, 0x6bb8c590, 0xa712c50e, 0xadd7cc17, 0x617dcc89,
+    0xeff2cb6a, 0x2358cbf4, 0xfa78d958, 0x36d2d9c6, 0xb85dde25,
+    0x74f7debb, 0x7e32d7a2, 0xb298d73c, 0x3c17d0df, 0xf0bdd041,
+    0x5526f3c6, 0x998cf358, 0x1703f4bb, 0xdba9f425, 0xd16cfd3c,
+    0x1dc6fda2, 0x9349fa41, 0x5fe3fadf, 0x86c3e873, 0x4a69e8ed,
+    0xc4e6ef0e, 0x084cef90, 0x0289e689, 0xce23e617, 0x40ace1f4,
+    0x8c06e16a, 0xd0eba0bb, 0x1c41a025, 0x92cea7c6, 0x5e64a758,
+    0x54a1ae41, 0x980baedf, 0x1684a93c, 0xda2ea9a2, 0x030ebb0e,
+    0xcfa4bb90, 0x412bbc73, 0x8d81bced, 0x8744b5f4, 0x4beeb56a,
+    0xc561b289, 0x09cbb217, 0xac509190, 0x60fa910e, 0xee7596ed,
+    0x22df9673, 0x281a9f6a, 0xe4b09ff4, 0x6a3f9817, 0xa6959889,
+    0x7fb58a25, 0xb31f8abb, 0x3d908d58, 0xf13a8dc6, 0xfbff84df,
+    0x37558441, 0xb9da83a2, 0x7570833c, 0x533b85da, 0x9f918544,
+    0x111e82a7, 0xddb48239, 0xd7718b20, 0x1bdb8bbe, 0x95548c5d,
+    0x59fe8cc3, 0x80de9e6f, 0x4c749ef1, 0xc2fb9912, 0x0e51998c,
+    0x04949095, 0xc83e900b, 0x46b197e8, 0x8a1b9776, 0x2f80b4f1,
+    0xe32ab46f, 0x6da5b38c, 0xa10fb312, 0xabcaba0b, 0x6760ba95,
+    0xe9efbd76, 0x2545bde8, 0xfc65af44, 0x30cfafda, 0xbe40a839,
+    0x72eaa8a7, 0x782fa1be, 0xb485a120, 0x3a0aa6c3, 0xf6a0a65d,
+    0xaa4de78c, 0x66e7e712, 0xe868e0f1, 0x24c2e06f, 0x2e07e976,
+    0xe2ade9e8, 0x6c22ee0b, 0xa088ee95, 0x79a8fc39, 0xb502fca7,
+    0x3b8dfb44, 0xf727fbda, 0xfde2f2c3, 0x3148f25d, 0xbfc7f5be,
+    0x736df520, 0xd6f6d6a7, 0x1a5cd639, 0x94d3d1da, 0x5879d144,
+    0x52bcd85d, 0x9e16d8c3, 0x1099df20, 0xdc33dfbe, 0x0513cd12,
+    0xc9b9cd8c, 0x4736ca6f, 0x8b9ccaf1, 0x8159c3e8, 0x4df3c376,
+    0xc37cc495, 0x0fd6c40b, 0x7aa64737, 0xb60c47a9, 0x3883404a,
+    0xf42940d4, 0xfeec49cd, 0x32464953, 0xbcc94eb0, 0x70634e2e,
+    0xa9435c82, 0x65e95c1c, 0xeb665bff, 0x27cc5b61, 0x2d095278,
+    0xe1a352e6, 0x6f2c5505, 0xa386559b, 0x061d761c, 0xcab77682,
+    0x44387161, 0x889271ff, 0x825778e6, 0x4efd7878, 0xc0727f9b,
+    0x0cd87f05, 0xd5f86da9, 0x19526d37, 0x97dd6ad4, 0x5b776a4a,
+    0x51b26353, 0x9d1863cd, 0x1397642e, 0xdf3d64b0, 0x83d02561,
+    0x4f7a25ff, 0xc1f5221c, 0x0d5f2282, 0x079a2b9b, 0xcb302b05,
+    0x45bf2ce6, 0x89152c78, 0x50353ed4, 0x9c9f3e4a, 0x121039a9,
+    0xdeba3937, 0xd47f302e, 0x18d530b0, 0x965a3753, 0x5af037cd,
+    0xff6b144a, 0x33c114d4, 0xbd4e1337, 0x71e413a9, 0x7b211ab0,
+    0xb78b1a2e, 0x39041dcd, 0xf5ae1d53, 0x2c8e0fff, 0xe0240f61,
+    0x6eab0882, 0xa201081c, 0xa8c40105, 0x646e019b, 0xeae10678,
+    0x264b06e6},
+   {0x00000000, 0xa6770bb4, 0x979f1129, 0x31e81a9d, 0xf44f2413,
+    0x52382fa7, 0x63d0353a, 0xc5a73e8e, 0x33ef4e67, 0x959845d3,
+    0xa4705f4e, 0x020754fa, 0xc7a06a74, 0x61d761c0, 0x503f7b5d,
+    0xf64870e9, 0x67de9cce, 0xc1a9977a, 0xf0418de7, 0x56368653,
+    0x9391b8dd, 0x35e6b369, 0x040ea9f4, 0xa279a240, 0x5431d2a9,
+    0xf246d91d, 0xc3aec380, 0x65d9c834, 0xa07ef6ba, 0x0609fd0e,
+    0x37e1e793, 0x9196ec27, 0xcfbd399c, 0x69ca3228, 0x582228b5,
+    0xfe552301, 0x3bf21d8f, 0x9d85163b, 0xac6d0ca6, 0x0a1a0712,
+    0xfc5277fb, 0x5a257c4f, 0x6bcd66d2, 0xcdba6d66, 0x081d53e8,
+    0xae6a585c, 0x9f8242c1, 0x39f54975, 0xa863a552, 0x0e14aee6,
+    0x3ffcb47b, 0x998bbfcf, 0x5c2c8141, 0xfa5b8af5, 0xcbb39068,
+    0x6dc49bdc, 0x9b8ceb35, 0x3dfbe081, 0x0c13fa1c, 0xaa64f1a8,
+    0x6fc3cf26, 0xc9b4c492, 0xf85cde0f, 0x5e2bd5bb, 0x440b7579,
+    0xe27c7ecd, 0xd3946450, 0x75e36fe4, 0xb044516a, 0x16335ade,
+    0x27db4043, 0x81ac4bf7, 0x77e43b1e, 0xd19330aa, 0xe07b2a37,
+    0x460c2183, 0x83ab1f0d, 0x25dc14b9, 0x14340e24, 0xb2430590,
+    0x23d5e9b7, 0x85a2e203, 0xb44af89e, 0x123df32a, 0xd79acda4,
+    0x71edc610, 0x4005dc8d, 0xe672d739, 0x103aa7d0, 0xb64dac64,
+    0x87a5b6f9, 0x21d2bd4d, 0xe47583c3, 0x42028877, 0x73ea92ea,
+    0xd59d995e, 0x8bb64ce5, 0x2dc14751, 0x1c295dcc, 0xba5e5678,
+    0x7ff968f6, 0xd98e6342, 0xe86679df, 0x4e11726b, 0xb8590282,
+    0x1e2e0936, 0x2fc613ab, 0x89b1181f, 0x4c162691, 0xea612d25,
+    0xdb8937b8, 0x7dfe3c0c, 0xec68d02b, 0x4a1fdb9f, 0x7bf7c102,
+    0xdd80cab6, 0x1827f438, 0xbe50ff8c, 0x8fb8e511, 0x29cfeea5,
+    0xdf879e4c, 0x79f095f8, 0x48188f65, 0xee6f84d1, 0x2bc8ba5f,
+    0x8dbfb1eb, 0xbc57ab76, 0x1a20a0c2, 0x8816eaf2, 0x2e61e146,
+    0x1f89fbdb, 0xb9fef06f, 0x7c59cee1, 0xda2ec555, 0xebc6dfc8,
+    0x4db1d47c, 0xbbf9a495, 0x1d8eaf21, 0x2c66b5bc, 0x8a11be08,
+    0x4fb68086, 0xe9c18b32, 0xd82991af, 0x7e5e9a1b, 0xefc8763c,
+    0x49bf7d88, 0x78576715, 0xde206ca1, 0x1b87522f, 0xbdf0599b,
+    0x8c184306, 0x2a6f48b2, 0xdc27385b, 0x7a5033ef, 0x4bb82972,
+    0xedcf22c6, 0x28681c48, 0x8e1f17fc, 0xbff70d61, 0x198006d5,
+    0x47abd36e, 0xe1dcd8da, 0xd034c247, 0x7643c9f3, 0xb3e4f77d,
+    0x1593fcc9, 0x247be654, 0x820cede0, 0x74449d09, 0xd23396bd,
+    0xe3db8c20, 0x45ac8794, 0x800bb91a, 0x267cb2ae, 0x1794a833,
+    0xb1e3a387, 0x20754fa0, 0x86024414, 0xb7ea5e89, 0x119d553d,
+    0xd43a6bb3, 0x724d6007, 0x43a57a9a, 0xe5d2712e, 0x139a01c7,
+    0xb5ed0a73, 0x840510ee, 0x22721b5a, 0xe7d525d4, 0x41a22e60,
+    0x704a34fd, 0xd63d3f49, 0xcc1d9f8b, 0x6a6a943f, 0x5b828ea2,
+    0xfdf58516, 0x3852bb98, 0x9e25b02c, 0xafcdaab1, 0x09baa105,
+    0xfff2d1ec, 0x5985da58, 0x686dc0c5, 0xce1acb71, 0x0bbdf5ff,
+    0xadcafe4b, 0x9c22e4d6, 0x3a55ef62, 0xabc30345, 0x0db408f1,
+    0x3c5c126c, 0x9a2b19d8, 0x5f8c2756, 0xf9fb2ce2, 0xc813367f,
+    0x6e643dcb, 0x982c4d22, 0x3e5b4696, 0x0fb35c0b, 0xa9c457bf,
+    0x6c636931, 0xca146285, 0xfbfc7818, 0x5d8b73ac, 0x03a0a617,
+    0xa5d7ada3, 0x943fb73e, 0x3248bc8a, 0xf7ef8204, 0x519889b0,
+    0x6070932d, 0xc6079899, 0x304fe870, 0x9638e3c4, 0xa7d0f959,
+    0x01a7f2ed, 0xc400cc63, 0x6277c7d7, 0x539fdd4a, 0xf5e8d6fe,
+    0x647e3ad9, 0xc209316d, 0xf3e12bf0, 0x55962044, 0x90311eca,
+    0x3646157e, 0x07ae0fe3, 0xa1d90457, 0x579174be, 0xf1e67f0a,
+    0xc00e6597, 0x66796e23, 0xa3de50ad, 0x05a95b19, 0x34414184,
+    0x92364a30},
+   {0x00000000, 0xcb5cd3a5, 0x4dc8a10b, 0x869472ae, 0x9b914216,
+    0x50cd91b3, 0xd659e31d, 0x1d0530b8, 0xec53826d, 0x270f51c8,
+    0xa19b2366, 0x6ac7f0c3, 0x77c2c07b, 0xbc9e13de, 0x3a0a6170,
+    0xf156b2d5, 0x03d6029b, 0xc88ad13e, 0x4e1ea390, 0x85427035,
+    0x9847408d, 0x531b9328, 0xd58fe186, 0x1ed33223, 0xef8580f6,
+    0x24d95353, 0xa24d21fd, 0x6911f258, 0x7414c2e0, 0xbf481145,
+    0x39dc63eb, 0xf280b04e, 0x07ac0536, 0xccf0d693, 0x4a64a43d,
+    0x81387798, 0x9c3d4720, 0x57619485, 0xd1f5e62b, 0x1aa9358e,
+    0xebff875b, 0x20a354fe, 0xa6372650, 0x6d6bf5f5, 0x706ec54d,
+    0xbb3216e8, 0x3da66446, 0xf6fab7e3, 0x047a07ad, 0xcf26d408,
+    0x49b2a6a6, 0x82ee7503, 0x9feb45bb, 0x54b7961e, 0xd223e4b0,
+    0x197f3715, 0xe82985c0, 0x23755665, 0xa5e124cb, 0x6ebdf76e,
+    0x73b8c7d6, 0xb8e41473, 0x3e7066dd, 0xf52cb578, 0x0f580a6c,
+    0xc404d9c9, 0x4290ab67, 0x89cc78c2, 0x94c9487a, 0x5f959bdf,
+    0xd901e971, 0x125d3ad4, 0xe30b8801, 0x28575ba4, 0xaec3290a,
+    0x659ffaaf, 0x789aca17, 0xb3c619b2, 0x35526b1c, 0xfe0eb8b9,
+    0x0c8e08f7, 0xc7d2db52, 0x4146a9fc, 0x8a1a7a59, 0x971f4ae1,
+    0x5c439944, 0xdad7ebea, 0x118b384f, 0xe0dd8a9a, 0x2b81593f,
+    0xad152b91, 0x6649f834, 0x7b4cc88c, 0xb0101b29, 0x36846987,
+    0xfdd8ba22, 0x08f40f5a, 0xc3a8dcff, 0x453cae51, 0x8e607df4,
+    0x93654d4c, 0x58399ee9, 0xdeadec47, 0x15f13fe2, 0xe4a78d37,
+    0x2ffb5e92, 0xa96f2c3c, 0x6233ff99, 0x7f36cf21, 0xb46a1c84,
+    0x32fe6e2a, 0xf9a2bd8f, 0x0b220dc1, 0xc07ede64, 0x46eaacca,
+    0x8db67f6f, 0x90b34fd7, 0x5bef9c72, 0xdd7beedc, 0x16273d79,
+    0xe7718fac, 0x2c2d5c09, 0xaab92ea7, 0x61e5fd02, 0x7ce0cdba,
+    0xb7bc1e1f, 0x31286cb1, 0xfa74bf14, 0x1eb014d8, 0xd5ecc77d,
+    0x5378b5d3, 0x98246676, 0x852156ce, 0x4e7d856b, 0xc8e9f7c5,
+    0x03b52460, 0xf2e396b5, 0x39bf4510, 0xbf2b37be, 0x7477e41b,
+    0x6972d4a3, 0xa22e0706, 0x24ba75a8, 0xefe6a60d, 0x1d661643,
+    0xd63ac5e6, 0x50aeb748, 0x9bf264ed, 0x86f75455, 0x4dab87f0,
+    0xcb3ff55e, 0x006326fb, 0xf135942e, 0x3a69478b, 0xbcfd3525,
+    0x77a1e680, 0x6aa4d638, 0xa1f8059d, 0x276c7733, 0xec30a496,
+    0x191c11ee, 0xd240c24b, 0x54d4b0e5, 0x9f886340, 0x828d53f8,
+    0x49d1805d, 0xcf45f2f3, 0x04192156, 0xf54f9383, 0x3e134026,
+    0xb8873288, 0x73dbe12d, 0x6eded195, 0xa5820230, 0x2316709e,
+    0xe84aa33b, 0x1aca1375, 0xd196c0d0, 0x5702b27e, 0x9c5e61db,
+    0x815b5163, 0x4a0782c6, 0xcc93f068, 0x07cf23cd, 0xf6999118,
+    0x3dc542bd, 0xbb513013, 0x700de3b6, 0x6d08d30e, 0xa65400ab,
+    0x20c07205, 0xeb9ca1a0, 0x11e81eb4, 0xdab4cd11, 0x5c20bfbf,
+    0x977c6c1a, 0x8a795ca2, 0x41258f07, 0xc7b1fda9, 0x0ced2e0c,
+    0xfdbb9cd9, 0x36e74f7c, 0xb0733dd2, 0x7b2fee77, 0x662adecf,
+    0xad760d6a, 0x2be27fc4, 0xe0beac61, 0x123e1c2f, 0xd962cf8a,
+    0x5ff6bd24, 0x94aa6e81, 0x89af5e39, 0x42f38d9c, 0xc467ff32,
+    0x0f3b2c97, 0xfe6d9e42, 0x35314de7, 0xb3a53f49, 0x78f9ecec,
+    0x65fcdc54, 0xaea00ff1, 0x28347d5f, 0xe368aefa, 0x16441b82,
+    0xdd18c827, 0x5b8cba89, 0x90d0692c, 0x8dd55994, 0x46898a31,
+    0xc01df89f, 0x0b412b3a, 0xfa1799ef, 0x314b4a4a, 0xb7df38e4,
+    0x7c83eb41, 0x6186dbf9, 0xaada085c, 0x2c4e7af2, 0xe712a957,
+    0x15921919, 0xdececabc, 0x585ab812, 0x93066bb7, 0x8e035b0f,
+    0x455f88aa, 0xc3cbfa04, 0x089729a1, 0xf9c19b74, 0x329d48d1,
+    0xb4093a7f, 0x7f55e9da, 0x6250d962, 0xa90c0ac7, 0x2f987869,
+    0xe4c4abcc},
+   {0x00000000, 0x3d6029b0, 0x7ac05360, 0x47a07ad0, 0xf580a6c0,
+    0xc8e08f70, 0x8f40f5a0, 0xb220dc10, 0x30704bc1, 0x0d106271,
+    0x4ab018a1, 0x77d03111, 0xc5f0ed01, 0xf890c4b1, 0xbf30be61,
+    0x825097d1, 0x60e09782, 0x5d80be32, 0x1a20c4e2, 0x2740ed52,
+    0x95603142, 0xa80018f2, 0xefa06222, 0xd2c04b92, 0x5090dc43,
+    0x6df0f5f3, 0x2a508f23, 0x1730a693, 0xa5107a83, 0x98705333,
+    0xdfd029e3, 0xe2b00053, 0xc1c12f04, 0xfca106b4, 0xbb017c64,
+    0x866155d4, 0x344189c4, 0x0921a074, 0x4e81daa4, 0x73e1f314,
+    0xf1b164c5, 0xccd14d75, 0x8b7137a5, 0xb6111e15, 0x0431c205,
+    0x3951ebb5, 0x7ef19165, 0x4391b8d5, 0xa121b886, 0x9c419136,
+    0xdbe1ebe6, 0xe681c256, 0x54a11e46, 0x69c137f6, 0x2e614d26,
+    0x13016496, 0x9151f347, 0xac31daf7, 0xeb91a027, 0xd6f18997,
+    0x64d15587, 0x59b17c37, 0x1e1106e7, 0x23712f57, 0x58f35849,
+    0x659371f9, 0x22330b29, 0x1f532299, 0xad73fe89, 0x9013d739,
+    0xd7b3ade9, 0xead38459, 0x68831388, 0x55e33a38, 0x124340e8,
+    0x2f236958, 0x9d03b548, 0xa0639cf8, 0xe7c3e628, 0xdaa3cf98,
+    0x3813cfcb, 0x0573e67b, 0x42d39cab, 0x7fb3b51b, 0xcd93690b,
+    0xf0f340bb, 0xb7533a6b, 0x8a3313db, 0x0863840a, 0x3503adba,
+    0x72a3d76a, 0x4fc3feda, 0xfde322ca, 0xc0830b7a, 0x872371aa,
+    0xba43581a, 0x9932774d, 0xa4525efd, 0xe3f2242d, 0xde920d9d,
+    0x6cb2d18d, 0x51d2f83d, 0x167282ed, 0x2b12ab5d, 0xa9423c8c,
+    0x9422153c, 0xd3826fec, 0xeee2465c, 0x5cc29a4c, 0x61a2b3fc,
+    0x2602c92c, 0x1b62e09c, 0xf9d2e0cf, 0xc4b2c97f, 0x8312b3af,
+    0xbe729a1f, 0x0c52460f, 0x31326fbf, 0x7692156f, 0x4bf23cdf,
+    0xc9a2ab0e, 0xf4c282be, 0xb362f86e, 0x8e02d1de, 0x3c220dce,
+    0x0142247e, 0x46e25eae, 0x7b82771e, 0xb1e6b092, 0x8c869922,
+    0xcb26e3f2, 0xf646ca42, 0x44661652, 0x79063fe2, 0x3ea64532,
+    0x03c66c82, 0x8196fb53, 0xbcf6d2e3, 0xfb56a833, 0xc6368183,
+    0x74165d93, 0x49767423, 0x0ed60ef3, 0x33b62743, 0xd1062710,
+    0xec660ea0, 0xabc67470, 0x96a65dc0, 0x248681d0, 0x19e6a860,
+    0x5e46d2b0, 0x6326fb00, 0xe1766cd1, 0xdc164561, 0x9bb63fb1,
+    0xa6d61601, 0x14f6ca11, 0x2996e3a1, 0x6e369971, 0x5356b0c1,
+    0x70279f96, 0x4d47b626, 0x0ae7ccf6, 0x3787e546, 0x85a73956,
+    0xb8c710e6, 0xff676a36, 0xc2074386, 0x4057d457, 0x7d37fde7,
+    0x3a978737, 0x07f7ae87, 0xb5d77297, 0x88b75b27, 0xcf1721f7,
+    0xf2770847, 0x10c70814, 0x2da721a4, 0x6a075b74, 0x576772c4,
+    0xe547aed4, 0xd8278764, 0x9f87fdb4, 0xa2e7d404, 0x20b743d5,
+    0x1dd76a65, 0x5a7710b5, 0x67173905, 0xd537e515, 0xe857cca5,
+    0xaff7b675, 0x92979fc5, 0xe915e8db, 0xd475c16b, 0x93d5bbbb,
+    0xaeb5920b, 0x1c954e1b, 0x21f567ab, 0x66551d7b, 0x5b3534cb,
+    0xd965a31a, 0xe4058aaa, 0xa3a5f07a, 0x9ec5d9ca, 0x2ce505da,
+    0x11852c6a, 0x562556ba, 0x6b457f0a, 0x89f57f59, 0xb49556e9,
+    0xf3352c39, 0xce550589, 0x7c75d999, 0x4115f029, 0x06b58af9,
+    0x3bd5a349, 0xb9853498, 0x84e51d28, 0xc34567f8, 0xfe254e48,
+    0x4c059258, 0x7165bbe8, 0x36c5c138, 0x0ba5e888, 0x28d4c7df,
+    0x15b4ee6f, 0x521494bf, 0x6f74bd0f, 0xdd54611f, 0xe03448af,
+    0xa794327f, 0x9af41bcf, 0x18a48c1e, 0x25c4a5ae, 0x6264df7e,
+    0x5f04f6ce, 0xed242ade, 0xd044036e, 0x97e479be, 0xaa84500e,
+    0x4834505d, 0x755479ed, 0x32f4033d, 0x0f942a8d, 0xbdb4f69d,
+    0x80d4df2d, 0xc774a5fd, 0xfa148c4d, 0x78441b9c, 0x4524322c,
+    0x028448fc, 0x3fe4614c, 0x8dc4bd5c, 0xb0a494ec, 0xf704ee3c,
+    0xca64c78c}};
+
+local const z_word_t FAR crc_braid_big_table[][256] = {
+   {0x00000000, 0xb029603d, 0x6053c07a, 0xd07aa047, 0xc0a680f5,
+    0x708fe0c8, 0xa0f5408f, 0x10dc20b2, 0xc14b7030, 0x7162100d,
+    0xa118b04a, 0x1131d077, 0x01edf0c5, 0xb1c490f8, 0x61be30bf,
+    0xd1975082, 0x8297e060, 0x32be805d, 0xe2c4201a, 0x52ed4027,
+    0x42316095, 0xf21800a8, 0x2262a0ef, 0x924bc0d2, 0x43dc9050,
+    0xf3f5f06d, 0x238f502a, 0x93a63017, 0x837a10a5, 0x33537098,
+    0xe329d0df, 0x5300b0e2, 0x042fc1c1, 0xb406a1fc, 0x647c01bb,
+    0xd4556186, 0xc4894134, 0x74a02109, 0xa4da814e, 0x14f3e173,
+    0xc564b1f1, 0x754dd1cc, 0xa537718b, 0x151e11b6, 0x05c23104,
+    0xb5eb5139, 0x6591f17e, 0xd5b89143, 0x86b821a1, 0x3691419c,
+    0xe6ebe1db, 0x56c281e6, 0x461ea154, 0xf637c169, 0x264d612e,
+    0x96640113, 0x47f35191, 0xf7da31ac, 0x27a091eb, 0x9789f1d6,
+    0x8755d164, 0x377cb159, 0xe706111e, 0x572f7123, 0x4958f358,
+    0xf9719365, 0x290b3322, 0x9922531f, 0x89fe73ad, 0x39d71390,
+    0xe9adb3d7, 0x5984d3ea, 0x88138368, 0x383ae355, 0xe8404312,
+    0x5869232f, 0x48b5039d, 0xf89c63a0, 0x28e6c3e7, 0x98cfa3da,
+    0xcbcf1338, 0x7be67305, 0xab9cd342, 0x1bb5b37f, 0x0b6993cd,
+    0xbb40f3f0, 0x6b3a53b7, 0xdb13338a, 0x0a846308, 0xbaad0335,
+    0x6ad7a372, 0xdafec34f, 0xca22e3fd, 0x7a0b83c0, 0xaa712387,
+    0x1a5843ba, 0x4d773299, 0xfd5e52a4, 0x2d24f2e3, 0x9d0d92de,
+    0x8dd1b26c, 0x3df8d251, 0xed827216, 0x5dab122b, 0x8c3c42a9,
+    0x3c152294, 0xec6f82d3, 0x5c46e2ee, 0x4c9ac25c, 0xfcb3a261,
+    0x2cc90226, 0x9ce0621b, 0xcfe0d2f9, 0x7fc9b2c4, 0xafb31283,
+    0x1f9a72be, 0x0f46520c, 0xbf6f3231, 0x6f159276, 0xdf3cf24b,
+    0x0eaba2c9, 0xbe82c2f4, 0x6ef862b3, 0xded1028e, 0xce0d223c,
+    0x7e244201, 0xae5ee246, 0x1e77827b, 0x92b0e6b1, 0x2299868c,
+    0xf2e326cb, 0x42ca46f6, 0x52166644, 0xe23f0679, 0x3245a63e,
+    0x826cc603, 0x53fb9681, 0xe3d2f6bc, 0x33a856fb, 0x838136c6,
+    0x935d1674, 0x23747649, 0xf30ed60e, 0x4327b633, 0x102706d1,
+    0xa00e66ec, 0x7074c6ab, 0xc05da696, 0xd0818624, 0x60a8e619,
+    0xb0d2465e, 0x00fb2663, 0xd16c76e1, 0x614516dc, 0xb13fb69b,
+    0x0116d6a6, 0x11caf614, 0xa1e39629, 0x7199366e, 0xc1b05653,
+    0x969f2770, 0x26b6474d, 0xf6cce70a, 0x46e58737, 0x5639a785,
+    0xe610c7b8, 0x366a67ff, 0x864307c2, 0x57d45740, 0xe7fd377d,
+    0x3787973a, 0x87aef707, 0x9772d7b5, 0x275bb788, 0xf72117cf,
+    0x470877f2, 0x1408c710, 0xa421a72d, 0x745b076a, 0xc4726757,
+    0xd4ae47e5, 0x648727d8, 0xb4fd879f, 0x04d4e7a2, 0xd543b720,
+    0x656ad71d, 0xb510775a, 0x05391767, 0x15e537d5, 0xa5cc57e8,
+    0x75b6f7af, 0xc59f9792, 0xdbe815e9, 0x6bc175d4, 0xbbbbd593,
+    0x0b92b5ae, 0x1b4e951c, 0xab67f521, 0x7b1d5566, 0xcb34355b,
+    0x1aa365d9, 0xaa8a05e4, 0x7af0a5a3, 0xcad9c59e, 0xda05e52c,
+    0x6a2c8511, 0xba562556, 0x0a7f456b, 0x597ff589, 0xe95695b4,
+    0x392c35f3, 0x890555ce, 0x99d9757c, 0x29f01541, 0xf98ab506,
+    0x49a3d53b, 0x983485b9, 0x281de584, 0xf86745c3, 0x484e25fe,
+    0x5892054c, 0xe8bb6571, 0x38c1c536, 0x88e8a50b, 0xdfc7d428,
+    0x6feeb415, 0xbf941452, 0x0fbd746f, 0x1f6154dd, 0xaf4834e0,
+    0x7f3294a7, 0xcf1bf49a, 0x1e8ca418, 0xaea5c425, 0x7edf6462,
+    0xcef6045f, 0xde2a24ed, 0x6e0344d0, 0xbe79e497, 0x0e5084aa,
+    0x5d503448, 0xed795475, 0x3d03f432, 0x8d2a940f, 0x9df6b4bd,
+    0x2ddfd480, 0xfda574c7, 0x4d8c14fa, 0x9c1b4478, 0x2c322445,
+    0xfc488402, 0x4c61e43f, 0x5cbdc48d, 0xec94a4b0, 0x3cee04f7,
+    0x8cc764ca},
+   {0x00000000, 0xa5d35ccb, 0x0ba1c84d, 0xae729486, 0x1642919b,
+    0xb391cd50, 0x1de359d6, 0xb830051d, 0x6d8253ec, 0xc8510f27,
+    0x66239ba1, 0xc3f0c76a, 0x7bc0c277, 0xde139ebc, 0x70610a3a,
+    0xd5b256f1, 0x9b02d603, 0x3ed18ac8, 0x90a31e4e, 0x35704285,
+    0x8d404798, 0x28931b53, 0x86e18fd5, 0x2332d31e, 0xf68085ef,
+    0x5353d924, 0xfd214da2, 0x58f21169, 0xe0c21474, 0x451148bf,
+    0xeb63dc39, 0x4eb080f2, 0x3605ac07, 0x93d6f0cc, 0x3da4644a,
+    0x98773881, 0x20473d9c, 0x85946157, 0x2be6f5d1, 0x8e35a91a,
+    0x5b87ffeb, 0xfe54a320, 0x502637a6, 0xf5f56b6d, 0x4dc56e70,
+    0xe81632bb, 0x4664a63d, 0xe3b7faf6, 0xad077a04, 0x08d426cf,
+    0xa6a6b249, 0x0375ee82, 0xbb45eb9f, 0x1e96b754, 0xb0e423d2,
+    0x15377f19, 0xc08529e8, 0x65567523, 0xcb24e1a5, 0x6ef7bd6e,
+    0xd6c7b873, 0x7314e4b8, 0xdd66703e, 0x78b52cf5, 0x6c0a580f,
+    0xc9d904c4, 0x67ab9042, 0xc278cc89, 0x7a48c994, 0xdf9b955f,
+    0x71e901d9, 0xd43a5d12, 0x01880be3, 0xa45b5728, 0x0a29c3ae,
+    0xaffa9f65, 0x17ca9a78, 0xb219c6b3, 0x1c6b5235, 0xb9b80efe,
+    0xf7088e0c, 0x52dbd2c7, 0xfca94641, 0x597a1a8a, 0xe14a1f97,
+    0x4499435c, 0xeaebd7da, 0x4f388b11, 0x9a8adde0, 0x3f59812b,
+    0x912b15ad, 0x34f84966, 0x8cc84c7b, 0x291b10b0, 0x87698436,
+    0x22bad8fd, 0x5a0ff408, 0xffdca8c3, 0x51ae3c45, 0xf47d608e,
+    0x4c4d6593, 0xe99e3958, 0x47ecadde, 0xe23ff115, 0x378da7e4,
+    0x925efb2f, 0x3c2c6fa9, 0x99ff3362, 0x21cf367f, 0x841c6ab4,
+    0x2a6efe32, 0x8fbda2f9, 0xc10d220b, 0x64de7ec0, 0xcaacea46,
+    0x6f7fb68d, 0xd74fb390, 0x729cef5b, 0xdcee7bdd, 0x793d2716,
+    0xac8f71e7, 0x095c2d2c, 0xa72eb9aa, 0x02fde561, 0xbacde07c,
+    0x1f1ebcb7, 0xb16c2831, 0x14bf74fa, 0xd814b01e, 0x7dc7ecd5,
+    0xd3b57853, 0x76662498, 0xce562185, 0x6b857d4e, 0xc5f7e9c8,
+    0x6024b503, 0xb596e3f2, 0x1045bf39, 0xbe372bbf, 0x1be47774,
+    0xa3d47269, 0x06072ea2, 0xa875ba24, 0x0da6e6ef, 0x4316661d,
+    0xe6c53ad6, 0x48b7ae50, 0xed64f29b, 0x5554f786, 0xf087ab4d,
+    0x5ef53fcb, 0xfb266300, 0x2e9435f1, 0x8b47693a, 0x2535fdbc,
+    0x80e6a177, 0x38d6a46a, 0x9d05f8a1, 0x33776c27, 0x96a430ec,
+    0xee111c19, 0x4bc240d2, 0xe5b0d454, 0x4063889f, 0xf8538d82,
+    0x5d80d149, 0xf3f245cf, 0x56211904, 0x83934ff5, 0x2640133e,
+    0x883287b8, 0x2de1db73, 0x95d1de6e, 0x300282a5, 0x9e701623,
+    0x3ba34ae8, 0x7513ca1a, 0xd0c096d1, 0x7eb20257, 0xdb615e9c,
+    0x63515b81, 0xc682074a, 0x68f093cc, 0xcd23cf07, 0x189199f6,
+    0xbd42c53d, 0x133051bb, 0xb6e30d70, 0x0ed3086d, 0xab0054a6,
+    0x0572c020, 0xa0a19ceb, 0xb41ee811, 0x11cdb4da, 0xbfbf205c,
+    0x1a6c7c97, 0xa25c798a, 0x078f2541, 0xa9fdb1c7, 0x0c2eed0c,
+    0xd99cbbfd, 0x7c4fe736, 0xd23d73b0, 0x77ee2f7b, 0xcfde2a66,
+    0x6a0d76ad, 0xc47fe22b, 0x61acbee0, 0x2f1c3e12, 0x8acf62d9,
+    0x24bdf65f, 0x816eaa94, 0x395eaf89, 0x9c8df342, 0x32ff67c4,
+    0x972c3b0f, 0x429e6dfe, 0xe74d3135, 0x493fa5b3, 0xececf978,
+    0x54dcfc65, 0xf10fa0ae, 0x5f7d3428, 0xfaae68e3, 0x821b4416,
+    0x27c818dd, 0x89ba8c5b, 0x2c69d090, 0x9459d58d, 0x318a8946,
+    0x9ff81dc0, 0x3a2b410b, 0xef9917fa, 0x4a4a4b31, 0xe438dfb7,
+    0x41eb837c, 0xf9db8661, 0x5c08daaa, 0xf27a4e2c, 0x57a912e7,
+    0x19199215, 0xbccacede, 0x12b85a58, 0xb76b0693, 0x0f5b038e,
+    0xaa885f45, 0x04facbc3, 0xa1299708, 0x749bc1f9, 0xd1489d32,
+    0x7f3a09b4, 0xdae9557f, 0x62d95062, 0xc70a0ca9, 0x6978982f,
+    0xccabc4e4},
+   {0x00000000, 0xb40b77a6, 0x29119f97, 0x9d1ae831, 0x13244ff4,
+    0xa72f3852, 0x3a35d063, 0x8e3ea7c5, 0x674eef33, 0xd3459895,
+    0x4e5f70a4, 0xfa540702, 0x746aa0c7, 0xc061d761, 0x5d7b3f50,
+    0xe97048f6, 0xce9cde67, 0x7a97a9c1, 0xe78d41f0, 0x53863656,
+    0xddb89193, 0x69b3e635, 0xf4a90e04, 0x40a279a2, 0xa9d23154,
+    0x1dd946f2, 0x80c3aec3, 0x34c8d965, 0xbaf67ea0, 0x0efd0906,
+    0x93e7e137, 0x27ec9691, 0x9c39bdcf, 0x2832ca69, 0xb5282258,
+    0x012355fe, 0x8f1df23b, 0x3b16859d, 0xa60c6dac, 0x12071a0a,
+    0xfb7752fc, 0x4f7c255a, 0xd266cd6b, 0x666dbacd, 0xe8531d08,
+    0x5c586aae, 0xc142829f, 0x7549f539, 0x52a563a8, 0xe6ae140e,
+    0x7bb4fc3f, 0xcfbf8b99, 0x41812c5c, 0xf58a5bfa, 0x6890b3cb,
+    0xdc9bc46d, 0x35eb8c9b, 0x81e0fb3d, 0x1cfa130c, 0xa8f164aa,
+    0x26cfc36f, 0x92c4b4c9, 0x0fde5cf8, 0xbbd52b5e, 0x79750b44,
+    0xcd7e7ce2, 0x506494d3, 0xe46fe375, 0x6a5144b0, 0xde5a3316,
+    0x4340db27, 0xf74bac81, 0x1e3be477, 0xaa3093d1, 0x372a7be0,
+    0x83210c46, 0x0d1fab83, 0xb914dc25, 0x240e3414, 0x900543b2,
+    0xb7e9d523, 0x03e2a285, 0x9ef84ab4, 0x2af33d12, 0xa4cd9ad7,
+    0x10c6ed71, 0x8ddc0540, 0x39d772e6, 0xd0a73a10, 0x64ac4db6,
+    0xf9b6a587, 0x4dbdd221, 0xc38375e4, 0x77880242, 0xea92ea73,
+    0x5e999dd5, 0xe54cb68b, 0x5147c12d, 0xcc5d291c, 0x78565eba,
+    0xf668f97f, 0x42638ed9, 0xdf7966e8, 0x6b72114e, 0x820259b8,
+    0x36092e1e, 0xab13c62f, 0x1f18b189, 0x9126164c, 0x252d61ea,
+    0xb83789db, 0x0c3cfe7d, 0x2bd068ec, 0x9fdb1f4a, 0x02c1f77b,
+    0xb6ca80dd, 0x38f42718, 0x8cff50be, 0x11e5b88f, 0xa5eecf29,
+    0x4c9e87df, 0xf895f079, 0x658f1848, 0xd1846fee, 0x5fbac82b,
+    0xebb1bf8d, 0x76ab57bc, 0xc2a0201a, 0xf2ea1688, 0x46e1612e,
+    0xdbfb891f, 0x6ff0feb9, 0xe1ce597c, 0x55c52eda, 0xc8dfc6eb,
+    0x7cd4b14d, 0x95a4f9bb, 0x21af8e1d, 0xbcb5662c, 0x08be118a,
+    0x8680b64f, 0x328bc1e9, 0xaf9129d8, 0x1b9a5e7e, 0x3c76c8ef,
+    0x887dbf49, 0x15675778, 0xa16c20de, 0x2f52871b, 0x9b59f0bd,
+    0x0643188c, 0xb2486f2a, 0x5b3827dc, 0xef33507a, 0x7229b84b,
+    0xc622cfed, 0x481c6828, 0xfc171f8e, 0x610df7bf, 0xd5068019,
+    0x6ed3ab47, 0xdad8dce1, 0x47c234d0, 0xf3c94376, 0x7df7e4b3,
+    0xc9fc9315, 0x54e67b24, 0xe0ed0c82, 0x099d4474, 0xbd9633d2,
+    0x208cdbe3, 0x9487ac45, 0x1ab90b80, 0xaeb27c26, 0x33a89417,
+    0x87a3e3b1, 0xa04f7520, 0x14440286, 0x895eeab7, 0x3d559d11,
+    0xb36b3ad4, 0x07604d72, 0x9a7aa543, 0x2e71d2e5, 0xc7019a13,
+    0x730aedb5, 0xee100584, 0x5a1b7222, 0xd425d5e7, 0x602ea241,
+    0xfd344a70, 0x493f3dd6, 0x8b9f1dcc, 0x3f946a6a, 0xa28e825b,
+    0x1685f5fd, 0x98bb5238, 0x2cb0259e, 0xb1aacdaf, 0x05a1ba09,
+    0xecd1f2ff, 0x58da8559, 0xc5c06d68, 0x71cb1ace, 0xfff5bd0b,
+    0x4bfecaad, 0xd6e4229c, 0x62ef553a, 0x4503c3ab, 0xf108b40d,
+    0x6c125c3c, 0xd8192b9a, 0x56278c5f, 0xe22cfbf9, 0x7f3613c8,
+    0xcb3d646e, 0x224d2c98, 0x96465b3e, 0x0b5cb30f, 0xbf57c4a9,
+    0x3169636c, 0x856214ca, 0x1878fcfb, 0xac738b5d, 0x17a6a003,
+    0xa3add7a5, 0x3eb73f94, 0x8abc4832, 0x0482eff7, 0xb0899851,
+    0x2d937060, 0x999807c6, 0x70e84f30, 0xc4e33896, 0x59f9d0a7,
+    0xedf2a701, 0x63cc00c4, 0xd7c77762, 0x4add9f53, 0xfed6e8f5,
+    0xd93a7e64, 0x6d3109c2, 0xf02be1f3, 0x44209655, 0xca1e3190,
+    0x7e154636, 0xe30fae07, 0x5704d9a1, 0xbe749157, 0x0a7fe6f1,
+    0x97650ec0, 0x236e7966, 0xad50dea3, 0x195ba905, 0x84414134,
+    0x304a3692},
+   {0x00000000, 0x9e00aacc, 0x7d072542, 0xe3078f8e, 0xfa0e4a84,
+    0x640ee048, 0x87096fc6, 0x1909c50a, 0xb51be5d3, 0x2b1b4f1f,
+    0xc81cc091, 0x561c6a5d, 0x4f15af57, 0xd115059b, 0x32128a15,
+    0xac1220d9, 0x2b31bb7c, 0xb53111b0, 0x56369e3e, 0xc83634f2,
+    0xd13ff1f8, 0x4f3f5b34, 0xac38d4ba, 0x32387e76, 0x9e2a5eaf,
+    0x002af463, 0xe32d7bed, 0x7d2dd121, 0x6424142b, 0xfa24bee7,
+    0x19233169, 0x87239ba5, 0x566276f9, 0xc862dc35, 0x2b6553bb,
+    0xb565f977, 0xac6c3c7d, 0x326c96b1, 0xd16b193f, 0x4f6bb3f3,
+    0xe379932a, 0x7d7939e6, 0x9e7eb668, 0x007e1ca4, 0x1977d9ae,
+    0x87777362, 0x6470fcec, 0xfa705620, 0x7d53cd85, 0xe3536749,
+    0x0054e8c7, 0x9e54420b, 0x875d8701, 0x195d2dcd, 0xfa5aa243,
+    0x645a088f, 0xc8482856, 0x5648829a, 0xb54f0d14, 0x2b4fa7d8,
+    0x324662d2, 0xac46c81e, 0x4f414790, 0xd141ed5c, 0xedc29d29,
+    0x73c237e5, 0x90c5b86b, 0x0ec512a7, 0x17ccd7ad, 0x89cc7d61,
+    0x6acbf2ef, 0xf4cb5823, 0x58d978fa, 0xc6d9d236, 0x25de5db8,
+    0xbbdef774, 0xa2d7327e, 0x3cd798b2, 0xdfd0173c, 0x41d0bdf0,
+    0xc6f32655, 0x58f38c99, 0xbbf40317, 0x25f4a9db, 0x3cfd6cd1,
+    0xa2fdc61d, 0x41fa4993, 0xdffae35f, 0x73e8c386, 0xede8694a,
+    0x0eefe6c4, 0x90ef4c08, 0x89e68902, 0x17e623ce, 0xf4e1ac40,
+    0x6ae1068c, 0xbba0ebd0, 0x25a0411c, 0xc6a7ce92, 0x58a7645e,
+    0x41aea154, 0xdfae0b98, 0x3ca98416, 0xa2a92eda, 0x0ebb0e03,
+    0x90bba4cf, 0x73bc2b41, 0xedbc818d, 0xf4b54487, 0x6ab5ee4b,
+    0x89b261c5, 0x17b2cb09, 0x909150ac, 0x0e91fa60, 0xed9675ee,
+    0x7396df22, 0x6a9f1a28, 0xf49fb0e4, 0x17983f6a, 0x899895a6,
+    0x258ab57f, 0xbb8a1fb3, 0x588d903d, 0xc68d3af1, 0xdf84fffb,
+    0x41845537, 0xa283dab9, 0x3c837075, 0xda853b53, 0x4485919f,
+    0xa7821e11, 0x3982b4dd, 0x208b71d7, 0xbe8bdb1b, 0x5d8c5495,
+    0xc38cfe59, 0x6f9ede80, 0xf19e744c, 0x1299fbc2, 0x8c99510e,
+    0x95909404, 0x0b903ec8, 0xe897b146, 0x76971b8a, 0xf1b4802f,
+    0x6fb42ae3, 0x8cb3a56d, 0x12b30fa1, 0x0bbacaab, 0x95ba6067,
+    0x76bdefe9, 0xe8bd4525, 0x44af65fc, 0xdaafcf30, 0x39a840be,
+    0xa7a8ea72, 0xbea12f78, 0x20a185b4, 0xc3a60a3a, 0x5da6a0f6,
+    0x8ce74daa, 0x12e7e766, 0xf1e068e8, 0x6fe0c224, 0x76e9072e,
+    0xe8e9ade2, 0x0bee226c, 0x95ee88a0, 0x39fca879, 0xa7fc02b5,
+    0x44fb8d3b, 0xdafb27f7, 0xc3f2e2fd, 0x5df24831, 0xbef5c7bf,
+    0x20f56d73, 0xa7d6f6d6, 0x39d65c1a, 0xdad1d394, 0x44d17958,
+    0x5dd8bc52, 0xc3d8169e, 0x20df9910, 0xbedf33dc, 0x12cd1305,
+    0x8ccdb9c9, 0x6fca3647, 0xf1ca9c8b, 0xe8c35981, 0x76c3f34d,
+    0x95c47cc3, 0x0bc4d60f, 0x3747a67a, 0xa9470cb6, 0x4a408338,
+    0xd44029f4, 0xcd49ecfe, 0x53494632, 0xb04ec9bc, 0x2e4e6370,
+    0x825c43a9, 0x1c5ce965, 0xff5b66eb, 0x615bcc27, 0x7852092d,
+    0xe652a3e1, 0x05552c6f, 0x9b5586a3, 0x1c761d06, 0x8276b7ca,
+    0x61713844, 0xff719288, 0xe6785782, 0x7878fd4e, 0x9b7f72c0,
+    0x057fd80c, 0xa96df8d5, 0x376d5219, 0xd46add97, 0x4a6a775b,
+    0x5363b251, 0xcd63189d, 0x2e649713, 0xb0643ddf, 0x6125d083,
+    0xff257a4f, 0x1c22f5c1, 0x82225f0d, 0x9b2b9a07, 0x052b30cb,
+    0xe62cbf45, 0x782c1589, 0xd43e3550, 0x4a3e9f9c, 0xa9391012,
+    0x3739bade, 0x2e307fd4, 0xb030d518, 0x53375a96, 0xcd37f05a,
+    0x4a146bff, 0xd414c133, 0x37134ebd, 0xa913e471, 0xb01a217b,
+    0x2e1a8bb7, 0xcd1d0439, 0x531daef5, 0xff0f8e2c, 0x610f24e0,
+    0x8208ab6e, 0x1c0801a2, 0x0501c4a8, 0x9b016e64, 0x7806e1ea,
+    0xe6064b26}};
+
+#endif
+
+#endif
+
+#if N == 3
+
+#if W == 8
+
+local const z_crc_t FAR crc_braid_table[][256] = {
+   {0x00000000, 0x81256527, 0xd93bcc0f, 0x581ea928, 0x69069e5f,
+    0xe823fb78, 0xb03d5250, 0x31183777, 0xd20d3cbe, 0x53285999,
+    0x0b36f0b1, 0x8a139596, 0xbb0ba2e1, 0x3a2ec7c6, 0x62306eee,
+    0xe3150bc9, 0x7f6b7f3d, 0xfe4e1a1a, 0xa650b332, 0x2775d615,
+    0x166de162, 0x97488445, 0xcf562d6d, 0x4e73484a, 0xad664383,
+    0x2c4326a4, 0x745d8f8c, 0xf578eaab, 0xc460dddc, 0x4545b8fb,
+    0x1d5b11d3, 0x9c7e74f4, 0xfed6fe7a, 0x7ff39b5d, 0x27ed3275,
+    0xa6c85752, 0x97d06025, 0x16f50502, 0x4eebac2a, 0xcfcec90d,
+    0x2cdbc2c4, 0xadfea7e3, 0xf5e00ecb, 0x74c56bec, 0x45dd5c9b,
+    0xc4f839bc, 0x9ce69094, 0x1dc3f5b3, 0x81bd8147, 0x0098e460,
+    0x58864d48, 0xd9a3286f, 0xe8bb1f18, 0x699e7a3f, 0x3180d317,
+    0xb0a5b630, 0x53b0bdf9, 0xd295d8de, 0x8a8b71f6, 0x0bae14d1,
+    0x3ab623a6, 0xbb934681, 0xe38defa9, 0x62a88a8e, 0x26dcfab5,
+    0xa7f99f92, 0xffe736ba, 0x7ec2539d, 0x4fda64ea, 0xceff01cd,
+    0x96e1a8e5, 0x17c4cdc2, 0xf4d1c60b, 0x75f4a32c, 0x2dea0a04,
+    0xaccf6f23, 0x9dd75854, 0x1cf23d73, 0x44ec945b, 0xc5c9f17c,
+    0x59b78588, 0xd892e0af, 0x808c4987, 0x01a92ca0, 0x30b11bd7,
+    0xb1947ef0, 0xe98ad7d8, 0x68afb2ff, 0x8bbab936, 0x0a9fdc11,
+    0x52817539, 0xd3a4101e, 0xe2bc2769, 0x6399424e, 0x3b87eb66,
+    0xbaa28e41, 0xd80a04cf, 0x592f61e8, 0x0131c8c0, 0x8014ade7,
+    0xb10c9a90, 0x3029ffb7, 0x6837569f, 0xe91233b8, 0x0a073871,
+    0x8b225d56, 0xd33cf47e, 0x52199159, 0x6301a62e, 0xe224c309,
+    0xba3a6a21, 0x3b1f0f06, 0xa7617bf2, 0x26441ed5, 0x7e5ab7fd,
+    0xff7fd2da, 0xce67e5ad, 0x4f42808a, 0x175c29a2, 0x96794c85,
+    0x756c474c, 0xf449226b, 0xac578b43, 0x2d72ee64, 0x1c6ad913,
+    0x9d4fbc34, 0xc551151c, 0x4474703b, 0x4db9f56a, 0xcc9c904d,
+    0x94823965, 0x15a75c42, 0x24bf6b35, 0xa59a0e12, 0xfd84a73a,
+    0x7ca1c21d, 0x9fb4c9d4, 0x1e91acf3, 0x468f05db, 0xc7aa60fc,
+    0xf6b2578b, 0x779732ac, 0x2f899b84, 0xaeacfea3, 0x32d28a57,
+    0xb3f7ef70, 0xebe94658, 0x6acc237f, 0x5bd41408, 0xdaf1712f,
+    0x82efd807, 0x03cabd20, 0xe0dfb6e9, 0x61fad3ce, 0x39e47ae6,
+    0xb8c11fc1, 0x89d928b6, 0x08fc4d91, 0x50e2e4b9, 0xd1c7819e,
+    0xb36f0b10, 0x324a6e37, 0x6a54c71f, 0xeb71a238, 0xda69954f,
+    0x5b4cf068, 0x03525940, 0x82773c67, 0x616237ae, 0xe0475289,
+    0xb859fba1, 0x397c9e86, 0x0864a9f1, 0x8941ccd6, 0xd15f65fe,
+    0x507a00d9, 0xcc04742d, 0x4d21110a, 0x153fb822, 0x941add05,
+    0xa502ea72, 0x24278f55, 0x7c39267d, 0xfd1c435a, 0x1e094893,
+    0x9f2c2db4, 0xc732849c, 0x4617e1bb, 0x770fd6cc, 0xf62ab3eb,
+    0xae341ac3, 0x2f117fe4, 0x6b650fdf, 0xea406af8, 0xb25ec3d0,
+    0x337ba6f7, 0x02639180, 0x8346f4a7, 0xdb585d8f, 0x5a7d38a8,
+    0xb9683361, 0x384d5646, 0x6053ff6e, 0xe1769a49, 0xd06ead3e,
+    0x514bc819, 0x09556131, 0x88700416, 0x140e70e2, 0x952b15c5,
+    0xcd35bced, 0x4c10d9ca, 0x7d08eebd, 0xfc2d8b9a, 0xa43322b2,
+    0x25164795, 0xc6034c5c, 0x4726297b, 0x1f388053, 0x9e1de574,
+    0xaf05d203, 0x2e20b724, 0x763e1e0c, 0xf71b7b2b, 0x95b3f1a5,
+    0x14969482, 0x4c883daa, 0xcdad588d, 0xfcb56ffa, 0x7d900add,
+    0x258ea3f5, 0xa4abc6d2, 0x47becd1b, 0xc69ba83c, 0x9e850114,
+    0x1fa06433, 0x2eb85344, 0xaf9d3663, 0xf7839f4b, 0x76a6fa6c,
+    0xead88e98, 0x6bfdebbf, 0x33e34297, 0xb2c627b0, 0x83de10c7,
+    0x02fb75e0, 0x5ae5dcc8, 0xdbc0b9ef, 0x38d5b226, 0xb9f0d701,
+    0xe1ee7e29, 0x60cb1b0e, 0x51d32c79, 0xd0f6495e, 0x88e8e076,
+    0x09cd8551},
+   {0x00000000, 0x9b73ead4, 0xed96d3e9, 0x76e5393d, 0x005ca193,
+    0x9b2f4b47, 0xedca727a, 0x76b998ae, 0x00b94326, 0x9bcaa9f2,
+    0xed2f90cf, 0x765c7a1b, 0x00e5e2b5, 0x9b960861, 0xed73315c,
+    0x7600db88, 0x0172864c, 0x9a016c98, 0xece455a5, 0x7797bf71,
+    0x012e27df, 0x9a5dcd0b, 0xecb8f436, 0x77cb1ee2, 0x01cbc56a,
+    0x9ab82fbe, 0xec5d1683, 0x772efc57, 0x019764f9, 0x9ae48e2d,
+    0xec01b710, 0x77725dc4, 0x02e50c98, 0x9996e64c, 0xef73df71,
+    0x740035a5, 0x02b9ad0b, 0x99ca47df, 0xef2f7ee2, 0x745c9436,
+    0x025c4fbe, 0x992fa56a, 0xefca9c57, 0x74b97683, 0x0200ee2d,
+    0x997304f9, 0xef963dc4, 0x74e5d710, 0x03978ad4, 0x98e46000,
+    0xee01593d, 0x7572b3e9, 0x03cb2b47, 0x98b8c193, 0xee5df8ae,
+    0x752e127a, 0x032ec9f2, 0x985d2326, 0xeeb81a1b, 0x75cbf0cf,
+    0x03726861, 0x980182b5, 0xeee4bb88, 0x7597515c, 0x05ca1930,
+    0x9eb9f3e4, 0xe85ccad9, 0x732f200d, 0x0596b8a3, 0x9ee55277,
+    0xe8006b4a, 0x7373819e, 0x05735a16, 0x9e00b0c2, 0xe8e589ff,
+    0x7396632b, 0x052ffb85, 0x9e5c1151, 0xe8b9286c, 0x73cac2b8,
+    0x04b89f7c, 0x9fcb75a8, 0xe92e4c95, 0x725da641, 0x04e43eef,
+    0x9f97d43b, 0xe972ed06, 0x720107d2, 0x0401dc5a, 0x9f72368e,
+    0xe9970fb3, 0x72e4e567, 0x045d7dc9, 0x9f2e971d, 0xe9cbae20,
+    0x72b844f4, 0x072f15a8, 0x9c5cff7c, 0xeab9c641, 0x71ca2c95,
+    0x0773b43b, 0x9c005eef, 0xeae567d2, 0x71968d06, 0x0796568e,
+    0x9ce5bc5a, 0xea008567, 0x71736fb3, 0x07caf71d, 0x9cb91dc9,
+    0xea5c24f4, 0x712fce20, 0x065d93e4, 0x9d2e7930, 0xebcb400d,
+    0x70b8aad9, 0x06013277, 0x9d72d8a3, 0xeb97e19e, 0x70e40b4a,
+    0x06e4d0c2, 0x9d973a16, 0xeb72032b, 0x7001e9ff, 0x06b87151,
+    0x9dcb9b85, 0xeb2ea2b8, 0x705d486c, 0x0b943260, 0x90e7d8b4,
+    0xe602e189, 0x7d710b5d, 0x0bc893f3, 0x90bb7927, 0xe65e401a,
+    0x7d2daace, 0x0b2d7146, 0x905e9b92, 0xe6bba2af, 0x7dc8487b,
+    0x0b71d0d5, 0x90023a01, 0xe6e7033c, 0x7d94e9e8, 0x0ae6b42c,
+    0x91955ef8, 0xe77067c5, 0x7c038d11, 0x0aba15bf, 0x91c9ff6b,
+    0xe72cc656, 0x7c5f2c82, 0x0a5ff70a, 0x912c1dde, 0xe7c924e3,
+    0x7cbace37, 0x0a035699, 0x9170bc4d, 0xe7958570, 0x7ce66fa4,
+    0x09713ef8, 0x9202d42c, 0xe4e7ed11, 0x7f9407c5, 0x092d9f6b,
+    0x925e75bf, 0xe4bb4c82, 0x7fc8a656, 0x09c87dde, 0x92bb970a,
+    0xe45eae37, 0x7f2d44e3, 0x0994dc4d, 0x92e73699, 0xe4020fa4,
+    0x7f71e570, 0x0803b8b4, 0x93705260, 0xe5956b5d, 0x7ee68189,
+    0x085f1927, 0x932cf3f3, 0xe5c9cace, 0x7eba201a, 0x08bafb92,
+    0x93c91146, 0xe52c287b, 0x7e5fc2af, 0x08e65a01, 0x9395b0d5,
+    0xe57089e8, 0x7e03633c, 0x0e5e2b50, 0x952dc184, 0xe3c8f8b9,
+    0x78bb126d, 0x0e028ac3, 0x95716017, 0xe394592a, 0x78e7b3fe,
+    0x0ee76876, 0x959482a2, 0xe371bb9f, 0x7802514b, 0x0ebbc9e5,
+    0x95c82331, 0xe32d1a0c, 0x785ef0d8, 0x0f2cad1c, 0x945f47c8,
+    0xe2ba7ef5, 0x79c99421, 0x0f700c8f, 0x9403e65b, 0xe2e6df66,
+    0x799535b2, 0x0f95ee3a, 0x94e604ee, 0xe2033dd3, 0x7970d707,
+    0x0fc94fa9, 0x94baa57d, 0xe25f9c40, 0x792c7694, 0x0cbb27c8,
+    0x97c8cd1c, 0xe12df421, 0x7a5e1ef5, 0x0ce7865b, 0x97946c8f,
+    0xe17155b2, 0x7a02bf66, 0x0c0264ee, 0x97718e3a, 0xe194b707,
+    0x7ae75dd3, 0x0c5ec57d, 0x972d2fa9, 0xe1c81694, 0x7abbfc40,
+    0x0dc9a184, 0x96ba4b50, 0xe05f726d, 0x7b2c98b9, 0x0d950017,
+    0x96e6eac3, 0xe003d3fe, 0x7b70392a, 0x0d70e2a2, 0x96030876,
+    0xe0e6314b, 0x7b95db9f, 0x0d2c4331, 0x965fa9e5, 0xe0ba90d8,
+    0x7bc97a0c},
+   {0x00000000, 0x172864c0, 0x2e50c980, 0x3978ad40, 0x5ca19300,
+    0x4b89f7c0, 0x72f15a80, 0x65d93e40, 0xb9432600, 0xae6b42c0,
+    0x9713ef80, 0x803b8b40, 0xe5e2b500, 0xf2cad1c0, 0xcbb27c80,
+    0xdc9a1840, 0xa9f74a41, 0xbedf2e81, 0x87a783c1, 0x908fe701,
+    0xf556d941, 0xe27ebd81, 0xdb0610c1, 0xcc2e7401, 0x10b46c41,
+    0x079c0881, 0x3ee4a5c1, 0x29ccc101, 0x4c15ff41, 0x5b3d9b81,
+    0x624536c1, 0x756d5201, 0x889f92c3, 0x9fb7f603, 0xa6cf5b43,
+    0xb1e73f83, 0xd43e01c3, 0xc3166503, 0xfa6ec843, 0xed46ac83,
+    0x31dcb4c3, 0x26f4d003, 0x1f8c7d43, 0x08a41983, 0x6d7d27c3,
+    0x7a554303, 0x432dee43, 0x54058a83, 0x2168d882, 0x3640bc42,
+    0x0f381102, 0x181075c2, 0x7dc94b82, 0x6ae12f42, 0x53998202,
+    0x44b1e6c2, 0x982bfe82, 0x8f039a42, 0xb67b3702, 0xa15353c2,
+    0xc48a6d82, 0xd3a20942, 0xeadaa402, 0xfdf2c0c2, 0xca4e23c7,
+    0xdd664707, 0xe41eea47, 0xf3368e87, 0x96efb0c7, 0x81c7d407,
+    0xb8bf7947, 0xaf971d87, 0x730d05c7, 0x64256107, 0x5d5dcc47,
+    0x4a75a887, 0x2fac96c7, 0x3884f207, 0x01fc5f47, 0x16d43b87,
+    0x63b96986, 0x74910d46, 0x4de9a006, 0x5ac1c4c6, 0x3f18fa86,
+    0x28309e46, 0x11483306, 0x066057c6, 0xdafa4f86, 0xcdd22b46,
+    0xf4aa8606, 0xe382e2c6, 0x865bdc86, 0x9173b846, 0xa80b1506,
+    0xbf2371c6, 0x42d1b104, 0x55f9d5c4, 0x6c817884, 0x7ba91c44,
+    0x1e702204, 0x095846c4, 0x3020eb84, 0x27088f44, 0xfb929704,
+    0xecbaf3c4, 0xd5c25e84, 0xc2ea3a44, 0xa7330404, 0xb01b60c4,
+    0x8963cd84, 0x9e4ba944, 0xeb26fb45, 0xfc0e9f85, 0xc57632c5,
+    0xd25e5605, 0xb7876845, 0xa0af0c85, 0x99d7a1c5, 0x8effc505,
+    0x5265dd45, 0x454db985, 0x7c3514c5, 0x6b1d7005, 0x0ec44e45,
+    0x19ec2a85, 0x209487c5, 0x37bce305, 0x4fed41cf, 0x58c5250f,
+    0x61bd884f, 0x7695ec8f, 0x134cd2cf, 0x0464b60f, 0x3d1c1b4f,
+    0x2a347f8f, 0xf6ae67cf, 0xe186030f, 0xd8feae4f, 0xcfd6ca8f,
+    0xaa0ff4cf, 0xbd27900f, 0x845f3d4f, 0x9377598f, 0xe61a0b8e,
+    0xf1326f4e, 0xc84ac20e, 0xdf62a6ce, 0xbabb988e, 0xad93fc4e,
+    0x94eb510e, 0x83c335ce, 0x5f592d8e, 0x4871494e, 0x7109e40e,
+    0x662180ce, 0x03f8be8e, 0x14d0da4e, 0x2da8770e, 0x3a8013ce,
+    0xc772d30c, 0xd05ab7cc, 0xe9221a8c, 0xfe0a7e4c, 0x9bd3400c,
+    0x8cfb24cc, 0xb583898c, 0xa2abed4c, 0x7e31f50c, 0x691991cc,
+    0x50613c8c, 0x4749584c, 0x2290660c, 0x35b802cc, 0x0cc0af8c,
+    0x1be8cb4c, 0x6e85994d, 0x79adfd8d, 0x40d550cd, 0x57fd340d,
+    0x32240a4d, 0x250c6e8d, 0x1c74c3cd, 0x0b5ca70d, 0xd7c6bf4d,
+    0xc0eedb8d, 0xf99676cd, 0xeebe120d, 0x8b672c4d, 0x9c4f488d,
+    0xa537e5cd, 0xb21f810d, 0x85a36208, 0x928b06c8, 0xabf3ab88,
+    0xbcdbcf48, 0xd902f108, 0xce2a95c8, 0xf7523888, 0xe07a5c48,
+    0x3ce04408, 0x2bc820c8, 0x12b08d88, 0x0598e948, 0x6041d708,
+    0x7769b3c8, 0x4e111e88, 0x59397a48, 0x2c542849, 0x3b7c4c89,
+    0x0204e1c9, 0x152c8509, 0x70f5bb49, 0x67dddf89, 0x5ea572c9,
+    0x498d1609, 0x95170e49, 0x823f6a89, 0xbb47c7c9, 0xac6fa309,
+    0xc9b69d49, 0xde9ef989, 0xe7e654c9, 0xf0ce3009, 0x0d3cf0cb,
+    0x1a14940b, 0x236c394b, 0x34445d8b, 0x519d63cb, 0x46b5070b,
+    0x7fcdaa4b, 0x68e5ce8b, 0xb47fd6cb, 0xa357b20b, 0x9a2f1f4b,
+    0x8d077b8b, 0xe8de45cb, 0xfff6210b, 0xc68e8c4b, 0xd1a6e88b,
+    0xa4cbba8a, 0xb3e3de4a, 0x8a9b730a, 0x9db317ca, 0xf86a298a,
+    0xef424d4a, 0xd63ae00a, 0xc11284ca, 0x1d889c8a, 0x0aa0f84a,
+    0x33d8550a, 0x24f031ca, 0x41290f8a, 0x56016b4a, 0x6f79c60a,
+    0x7851a2ca},
+   {0x00000000, 0x9fda839e, 0xe4c4017d, 0x7b1e82e3, 0x12f904bb,
+    0x8d238725, 0xf63d05c6, 0x69e78658, 0x25f20976, 0xba288ae8,
+    0xc136080b, 0x5eec8b95, 0x370b0dcd, 0xa8d18e53, 0xd3cf0cb0,
+    0x4c158f2e, 0x4be412ec, 0xd43e9172, 0xaf201391, 0x30fa900f,
+    0x591d1657, 0xc6c795c9, 0xbdd9172a, 0x220394b4, 0x6e161b9a,
+    0xf1cc9804, 0x8ad21ae7, 0x15089979, 0x7cef1f21, 0xe3359cbf,
+    0x982b1e5c, 0x07f19dc2, 0x97c825d8, 0x0812a646, 0x730c24a5,
+    0xecd6a73b, 0x85312163, 0x1aeba2fd, 0x61f5201e, 0xfe2fa380,
+    0xb23a2cae, 0x2de0af30, 0x56fe2dd3, 0xc924ae4d, 0xa0c32815,
+    0x3f19ab8b, 0x44072968, 0xdbddaaf6, 0xdc2c3734, 0x43f6b4aa,
+    0x38e83649, 0xa732b5d7, 0xced5338f, 0x510fb011, 0x2a1132f2,
+    0xb5cbb16c, 0xf9de3e42, 0x6604bddc, 0x1d1a3f3f, 0x82c0bca1,
+    0xeb273af9, 0x74fdb967, 0x0fe33b84, 0x9039b81a, 0xf4e14df1,
+    0x6b3bce6f, 0x10254c8c, 0x8fffcf12, 0xe618494a, 0x79c2cad4,
+    0x02dc4837, 0x9d06cba9, 0xd1134487, 0x4ec9c719, 0x35d745fa,
+    0xaa0dc664, 0xc3ea403c, 0x5c30c3a2, 0x272e4141, 0xb8f4c2df,
+    0xbf055f1d, 0x20dfdc83, 0x5bc15e60, 0xc41bddfe, 0xadfc5ba6,
+    0x3226d838, 0x49385adb, 0xd6e2d945, 0x9af7566b, 0x052dd5f5,
+    0x7e335716, 0xe1e9d488, 0x880e52d0, 0x17d4d14e, 0x6cca53ad,
+    0xf310d033, 0x63296829, 0xfcf3ebb7, 0x87ed6954, 0x1837eaca,
+    0x71d06c92, 0xee0aef0c, 0x95146def, 0x0aceee71, 0x46db615f,
+    0xd901e2c1, 0xa21f6022, 0x3dc5e3bc, 0x542265e4, 0xcbf8e67a,
+    0xb0e66499, 0x2f3ce707, 0x28cd7ac5, 0xb717f95b, 0xcc097bb8,
+    0x53d3f826, 0x3a347e7e, 0xa5eefde0, 0xdef07f03, 0x412afc9d,
+    0x0d3f73b3, 0x92e5f02d, 0xe9fb72ce, 0x7621f150, 0x1fc67708,
+    0x801cf496, 0xfb027675, 0x64d8f5eb, 0x32b39da3, 0xad691e3d,
+    0xd6779cde, 0x49ad1f40, 0x204a9918, 0xbf901a86, 0xc48e9865,
+    0x5b541bfb, 0x174194d5, 0x889b174b, 0xf38595a8, 0x6c5f1636,
+    0x05b8906e, 0x9a6213f0, 0xe17c9113, 0x7ea6128d, 0x79578f4f,
+    0xe68d0cd1, 0x9d938e32, 0x02490dac, 0x6bae8bf4, 0xf474086a,
+    0x8f6a8a89, 0x10b00917, 0x5ca58639, 0xc37f05a7, 0xb8618744,
+    0x27bb04da, 0x4e5c8282, 0xd186011c, 0xaa9883ff, 0x35420061,
+    0xa57bb87b, 0x3aa13be5, 0x41bfb906, 0xde653a98, 0xb782bcc0,
+    0x28583f5e, 0x5346bdbd, 0xcc9c3e23, 0x8089b10d, 0x1f533293,
+    0x644db070, 0xfb9733ee, 0x9270b5b6, 0x0daa3628, 0x76b4b4cb,
+    0xe96e3755, 0xee9faa97, 0x71452909, 0x0a5babea, 0x95812874,
+    0xfc66ae2c, 0x63bc2db2, 0x18a2af51, 0x87782ccf, 0xcb6da3e1,
+    0x54b7207f, 0x2fa9a29c, 0xb0732102, 0xd994a75a, 0x464e24c4,
+    0x3d50a627, 0xa28a25b9, 0xc652d052, 0x598853cc, 0x2296d12f,
+    0xbd4c52b1, 0xd4abd4e9, 0x4b715777, 0x306fd594, 0xafb5560a,
+    0xe3a0d924, 0x7c7a5aba, 0x0764d859, 0x98be5bc7, 0xf159dd9f,
+    0x6e835e01, 0x159ddce2, 0x8a475f7c, 0x8db6c2be, 0x126c4120,
+    0x6972c3c3, 0xf6a8405d, 0x9f4fc605, 0x0095459b, 0x7b8bc778,
+    0xe45144e6, 0xa844cbc8, 0x379e4856, 0x4c80cab5, 0xd35a492b,
+    0xbabdcf73, 0x25674ced, 0x5e79ce0e, 0xc1a34d90, 0x519af58a,
+    0xce407614, 0xb55ef4f7, 0x2a847769, 0x4363f131, 0xdcb972af,
+    0xa7a7f04c, 0x387d73d2, 0x7468fcfc, 0xebb27f62, 0x90acfd81,
+    0x0f767e1f, 0x6691f847, 0xf94b7bd9, 0x8255f93a, 0x1d8f7aa4,
+    0x1a7ee766, 0x85a464f8, 0xfebae61b, 0x61606585, 0x0887e3dd,
+    0x975d6043, 0xec43e2a0, 0x7399613e, 0x3f8cee10, 0xa0566d8e,
+    0xdb48ef6d, 0x44926cf3, 0x2d75eaab, 0xb2af6935, 0xc9b1ebd6,
+    0x566b6848},
+   {0x00000000, 0x65673b46, 0xcace768c, 0xafa94dca, 0x4eedeb59,
+    0x2b8ad01f, 0x84239dd5, 0xe144a693, 0x9ddbd6b2, 0xf8bcedf4,
+    0x5715a03e, 0x32729b78, 0xd3363deb, 0xb65106ad, 0x19f84b67,
+    0x7c9f7021, 0xe0c6ab25, 0x85a19063, 0x2a08dda9, 0x4f6fe6ef,
+    0xae2b407c, 0xcb4c7b3a, 0x64e536f0, 0x01820db6, 0x7d1d7d97,
+    0x187a46d1, 0xb7d30b1b, 0xd2b4305d, 0x33f096ce, 0x5697ad88,
+    0xf93ee042, 0x9c59db04, 0x1afc500b, 0x7f9b6b4d, 0xd0322687,
+    0xb5551dc1, 0x5411bb52, 0x31768014, 0x9edfcdde, 0xfbb8f698,
+    0x872786b9, 0xe240bdff, 0x4de9f035, 0x288ecb73, 0xc9ca6de0,
+    0xacad56a6, 0x03041b6c, 0x6663202a, 0xfa3afb2e, 0x9f5dc068,
+    0x30f48da2, 0x5593b6e4, 0xb4d71077, 0xd1b02b31, 0x7e1966fb,
+    0x1b7e5dbd, 0x67e12d9c, 0x028616da, 0xad2f5b10, 0xc8486056,
+    0x290cc6c5, 0x4c6bfd83, 0xe3c2b049, 0x86a58b0f, 0x35f8a016,
+    0x509f9b50, 0xff36d69a, 0x9a51eddc, 0x7b154b4f, 0x1e727009,
+    0xb1db3dc3, 0xd4bc0685, 0xa82376a4, 0xcd444de2, 0x62ed0028,
+    0x078a3b6e, 0xe6ce9dfd, 0x83a9a6bb, 0x2c00eb71, 0x4967d037,
+    0xd53e0b33, 0xb0593075, 0x1ff07dbf, 0x7a9746f9, 0x9bd3e06a,
+    0xfeb4db2c, 0x511d96e6, 0x347aada0, 0x48e5dd81, 0x2d82e6c7,
+    0x822bab0d, 0xe74c904b, 0x060836d8, 0x636f0d9e, 0xccc64054,
+    0xa9a17b12, 0x2f04f01d, 0x4a63cb5b, 0xe5ca8691, 0x80adbdd7,
+    0x61e91b44, 0x048e2002, 0xab276dc8, 0xce40568e, 0xb2df26af,
+    0xd7b81de9, 0x78115023, 0x1d766b65, 0xfc32cdf6, 0x9955f6b0,
+    0x36fcbb7a, 0x539b803c, 0xcfc25b38, 0xaaa5607e, 0x050c2db4,
+    0x606b16f2, 0x812fb061, 0xe4488b27, 0x4be1c6ed, 0x2e86fdab,
+    0x52198d8a, 0x377eb6cc, 0x98d7fb06, 0xfdb0c040, 0x1cf466d3,
+    0x79935d95, 0xd63a105f, 0xb35d2b19, 0x6bf1402c, 0x0e967b6a,
+    0xa13f36a0, 0xc4580de6, 0x251cab75, 0x407b9033, 0xefd2ddf9,
+    0x8ab5e6bf, 0xf62a969e, 0x934dadd8, 0x3ce4e012, 0x5983db54,
+    0xb8c77dc7, 0xdda04681, 0x72090b4b, 0x176e300d, 0x8b37eb09,
+    0xee50d04f, 0x41f99d85, 0x249ea6c3, 0xc5da0050, 0xa0bd3b16,
+    0x0f1476dc, 0x6a734d9a, 0x16ec3dbb, 0x738b06fd, 0xdc224b37,
+    0xb9457071, 0x5801d6e2, 0x3d66eda4, 0x92cfa06e, 0xf7a89b28,
+    0x710d1027, 0x146a2b61, 0xbbc366ab, 0xdea45ded, 0x3fe0fb7e,
+    0x5a87c038, 0xf52e8df2, 0x9049b6b4, 0xecd6c695, 0x89b1fdd3,
+    0x2618b019, 0x437f8b5f, 0xa23b2dcc, 0xc75c168a, 0x68f55b40,
+    0x0d926006, 0x91cbbb02, 0xf4ac8044, 0x5b05cd8e, 0x3e62f6c8,
+    0xdf26505b, 0xba416b1d, 0x15e826d7, 0x708f1d91, 0x0c106db0,
+    0x697756f6, 0xc6de1b3c, 0xa3b9207a, 0x42fd86e9, 0x279abdaf,
+    0x8833f065, 0xed54cb23, 0x5e09e03a, 0x3b6edb7c, 0x94c796b6,
+    0xf1a0adf0, 0x10e40b63, 0x75833025, 0xda2a7def, 0xbf4d46a9,
+    0xc3d23688, 0xa6b50dce, 0x091c4004, 0x6c7b7b42, 0x8d3fddd1,
+    0xe858e697, 0x47f1ab5d, 0x2296901b, 0xbecf4b1f, 0xdba87059,
+    0x74013d93, 0x116606d5, 0xf022a046, 0x95459b00, 0x3aecd6ca,
+    0x5f8bed8c, 0x23149dad, 0x4673a6eb, 0xe9daeb21, 0x8cbdd067,
+    0x6df976f4, 0x089e4db2, 0xa7370078, 0xc2503b3e, 0x44f5b031,
+    0x21928b77, 0x8e3bc6bd, 0xeb5cfdfb, 0x0a185b68, 0x6f7f602e,
+    0xc0d62de4, 0xa5b116a2, 0xd92e6683, 0xbc495dc5, 0x13e0100f,
+    0x76872b49, 0x97c38dda, 0xf2a4b69c, 0x5d0dfb56, 0x386ac010,
+    0xa4331b14, 0xc1542052, 0x6efd6d98, 0x0b9a56de, 0xeadef04d,
+    0x8fb9cb0b, 0x201086c1, 0x4577bd87, 0x39e8cda6, 0x5c8ff6e0,
+    0xf326bb2a, 0x9641806c, 0x770526ff, 0x12621db9, 0xbdcb5073,
+    0xd8ac6b35},
+   {0x00000000, 0xd7e28058, 0x74b406f1, 0xa35686a9, 0xe9680de2,
+    0x3e8a8dba, 0x9ddc0b13, 0x4a3e8b4b, 0x09a11d85, 0xde439ddd,
+    0x7d151b74, 0xaaf79b2c, 0xe0c91067, 0x372b903f, 0x947d1696,
+    0x439f96ce, 0x13423b0a, 0xc4a0bb52, 0x67f63dfb, 0xb014bda3,
+    0xfa2a36e8, 0x2dc8b6b0, 0x8e9e3019, 0x597cb041, 0x1ae3268f,
+    0xcd01a6d7, 0x6e57207e, 0xb9b5a026, 0xf38b2b6d, 0x2469ab35,
+    0x873f2d9c, 0x50ddadc4, 0x26847614, 0xf166f64c, 0x523070e5,
+    0x85d2f0bd, 0xcfec7bf6, 0x180efbae, 0xbb587d07, 0x6cbafd5f,
+    0x2f256b91, 0xf8c7ebc9, 0x5b916d60, 0x8c73ed38, 0xc64d6673,
+    0x11afe62b, 0xb2f96082, 0x651be0da, 0x35c64d1e, 0xe224cd46,
+    0x41724bef, 0x9690cbb7, 0xdcae40fc, 0x0b4cc0a4, 0xa81a460d,
+    0x7ff8c655, 0x3c67509b, 0xeb85d0c3, 0x48d3566a, 0x9f31d632,
+    0xd50f5d79, 0x02eddd21, 0xa1bb5b88, 0x7659dbd0, 0x4d08ec28,
+    0x9aea6c70, 0x39bcead9, 0xee5e6a81, 0xa460e1ca, 0x73826192,
+    0xd0d4e73b, 0x07366763, 0x44a9f1ad, 0x934b71f5, 0x301df75c,
+    0xe7ff7704, 0xadc1fc4f, 0x7a237c17, 0xd975fabe, 0x0e977ae6,
+    0x5e4ad722, 0x89a8577a, 0x2afed1d3, 0xfd1c518b, 0xb722dac0,
+    0x60c05a98, 0xc396dc31, 0x14745c69, 0x57ebcaa7, 0x80094aff,
+    0x235fcc56, 0xf4bd4c0e, 0xbe83c745, 0x6961471d, 0xca37c1b4,
+    0x1dd541ec, 0x6b8c9a3c, 0xbc6e1a64, 0x1f389ccd, 0xc8da1c95,
+    0x82e497de, 0x55061786, 0xf650912f, 0x21b21177, 0x622d87b9,
+    0xb5cf07e1, 0x16998148, 0xc17b0110, 0x8b458a5b, 0x5ca70a03,
+    0xfff18caa, 0x28130cf2, 0x78cea136, 0xaf2c216e, 0x0c7aa7c7,
+    0xdb98279f, 0x91a6acd4, 0x46442c8c, 0xe512aa25, 0x32f02a7d,
+    0x716fbcb3, 0xa68d3ceb, 0x05dbba42, 0xd2393a1a, 0x9807b151,
+    0x4fe53109, 0xecb3b7a0, 0x3b5137f8, 0x9a11d850, 0x4df35808,
+    0xeea5dea1, 0x39475ef9, 0x7379d5b2, 0xa49b55ea, 0x07cdd343,
+    0xd02f531b, 0x93b0c5d5, 0x4452458d, 0xe704c324, 0x30e6437c,
+    0x7ad8c837, 0xad3a486f, 0x0e6ccec6, 0xd98e4e9e, 0x8953e35a,
+    0x5eb16302, 0xfde7e5ab, 0x2a0565f3, 0x603beeb8, 0xb7d96ee0,
+    0x148fe849, 0xc36d6811, 0x80f2fedf, 0x57107e87, 0xf446f82e,
+    0x23a47876, 0x699af33d, 0xbe787365, 0x1d2ef5cc, 0xcacc7594,
+    0xbc95ae44, 0x6b772e1c, 0xc821a8b5, 0x1fc328ed, 0x55fda3a6,
+    0x821f23fe, 0x2149a557, 0xf6ab250f, 0xb534b3c1, 0x62d63399,
+    0xc180b530, 0x16623568, 0x5c5cbe23, 0x8bbe3e7b, 0x28e8b8d2,
+    0xff0a388a, 0xafd7954e, 0x78351516, 0xdb6393bf, 0x0c8113e7,
+    0x46bf98ac, 0x915d18f4, 0x320b9e5d, 0xe5e91e05, 0xa67688cb,
+    0x71940893, 0xd2c28e3a, 0x05200e62, 0x4f1e8529, 0x98fc0571,
+    0x3baa83d8, 0xec480380, 0xd7193478, 0x00fbb420, 0xa3ad3289,
+    0x744fb2d1, 0x3e71399a, 0xe993b9c2, 0x4ac53f6b, 0x9d27bf33,
+    0xdeb829fd, 0x095aa9a5, 0xaa0c2f0c, 0x7deeaf54, 0x37d0241f,
+    0xe032a447, 0x436422ee, 0x9486a2b6, 0xc45b0f72, 0x13b98f2a,
+    0xb0ef0983, 0x670d89db, 0x2d330290, 0xfad182c8, 0x59870461,
+    0x8e658439, 0xcdfa12f7, 0x1a1892af, 0xb94e1406, 0x6eac945e,
+    0x24921f15, 0xf3709f4d, 0x502619e4, 0x87c499bc, 0xf19d426c,
+    0x267fc234, 0x8529449d, 0x52cbc4c5, 0x18f54f8e, 0xcf17cfd6,
+    0x6c41497f, 0xbba3c927, 0xf83c5fe9, 0x2fdedfb1, 0x8c885918,
+    0x5b6ad940, 0x1154520b, 0xc6b6d253, 0x65e054fa, 0xb202d4a2,
+    0xe2df7966, 0x353df93e, 0x966b7f97, 0x4189ffcf, 0x0bb77484,
+    0xdc55f4dc, 0x7f037275, 0xa8e1f22d, 0xeb7e64e3, 0x3c9ce4bb,
+    0x9fca6212, 0x4828e24a, 0x02166901, 0xd5f4e959, 0x76a26ff0,
+    0xa140efa8},
+   {0x00000000, 0xef52b6e1, 0x05d46b83, 0xea86dd62, 0x0ba8d706,
+    0xe4fa61e7, 0x0e7cbc85, 0xe12e0a64, 0x1751ae0c, 0xf80318ed,
+    0x1285c58f, 0xfdd7736e, 0x1cf9790a, 0xf3abcfeb, 0x192d1289,
+    0xf67fa468, 0x2ea35c18, 0xc1f1eaf9, 0x2b77379b, 0xc425817a,
+    0x250b8b1e, 0xca593dff, 0x20dfe09d, 0xcf8d567c, 0x39f2f214,
+    0xd6a044f5, 0x3c269997, 0xd3742f76, 0x325a2512, 0xdd0893f3,
+    0x378e4e91, 0xd8dcf870, 0x5d46b830, 0xb2140ed1, 0x5892d3b3,
+    0xb7c06552, 0x56ee6f36, 0xb9bcd9d7, 0x533a04b5, 0xbc68b254,
+    0x4a17163c, 0xa545a0dd, 0x4fc37dbf, 0xa091cb5e, 0x41bfc13a,
+    0xaeed77db, 0x446baab9, 0xab391c58, 0x73e5e428, 0x9cb752c9,
+    0x76318fab, 0x9963394a, 0x784d332e, 0x971f85cf, 0x7d9958ad,
+    0x92cbee4c, 0x64b44a24, 0x8be6fcc5, 0x616021a7, 0x8e329746,
+    0x6f1c9d22, 0x804e2bc3, 0x6ac8f6a1, 0x859a4040, 0xba8d7060,
+    0x55dfc681, 0xbf591be3, 0x500bad02, 0xb125a766, 0x5e771187,
+    0xb4f1cce5, 0x5ba37a04, 0xaddcde6c, 0x428e688d, 0xa808b5ef,
+    0x475a030e, 0xa674096a, 0x4926bf8b, 0xa3a062e9, 0x4cf2d408,
+    0x942e2c78, 0x7b7c9a99, 0x91fa47fb, 0x7ea8f11a, 0x9f86fb7e,
+    0x70d44d9f, 0x9a5290fd, 0x7500261c, 0x837f8274, 0x6c2d3495,
+    0x86abe9f7, 0x69f95f16, 0x88d75572, 0x6785e393, 0x8d033ef1,
+    0x62518810, 0xe7cbc850, 0x08997eb1, 0xe21fa3d3, 0x0d4d1532,
+    0xec631f56, 0x0331a9b7, 0xe9b774d5, 0x06e5c234, 0xf09a665c,
+    0x1fc8d0bd, 0xf54e0ddf, 0x1a1cbb3e, 0xfb32b15a, 0x146007bb,
+    0xfee6dad9, 0x11b46c38, 0xc9689448, 0x263a22a9, 0xccbcffcb,
+    0x23ee492a, 0xc2c0434e, 0x2d92f5af, 0xc71428cd, 0x28469e2c,
+    0xde393a44, 0x316b8ca5, 0xdbed51c7, 0x34bfe726, 0xd591ed42,
+    0x3ac35ba3, 0xd04586c1, 0x3f173020, 0xae6be681, 0x41395060,
+    0xabbf8d02, 0x44ed3be3, 0xa5c33187, 0x4a918766, 0xa0175a04,
+    0x4f45ece5, 0xb93a488d, 0x5668fe6c, 0xbcee230e, 0x53bc95ef,
+    0xb2929f8b, 0x5dc0296a, 0xb746f408, 0x581442e9, 0x80c8ba99,
+    0x6f9a0c78, 0x851cd11a, 0x6a4e67fb, 0x8b606d9f, 0x6432db7e,
+    0x8eb4061c, 0x61e6b0fd, 0x97991495, 0x78cba274, 0x924d7f16,
+    0x7d1fc9f7, 0x9c31c393, 0x73637572, 0x99e5a810, 0x76b71ef1,
+    0xf32d5eb1, 0x1c7fe850, 0xf6f93532, 0x19ab83d3, 0xf88589b7,
+    0x17d73f56, 0xfd51e234, 0x120354d5, 0xe47cf0bd, 0x0b2e465c,
+    0xe1a89b3e, 0x0efa2ddf, 0xefd427bb, 0x0086915a, 0xea004c38,
+    0x0552fad9, 0xdd8e02a9, 0x32dcb448, 0xd85a692a, 0x3708dfcb,
+    0xd626d5af, 0x3974634e, 0xd3f2be2c, 0x3ca008cd, 0xcadfaca5,
+    0x258d1a44, 0xcf0bc726, 0x205971c7, 0xc1777ba3, 0x2e25cd42,
+    0xc4a31020, 0x2bf1a6c1, 0x14e696e1, 0xfbb42000, 0x1132fd62,
+    0xfe604b83, 0x1f4e41e7, 0xf01cf706, 0x1a9a2a64, 0xf5c89c85,
+    0x03b738ed, 0xece58e0c, 0x0663536e, 0xe931e58f, 0x081fefeb,
+    0xe74d590a, 0x0dcb8468, 0xe2993289, 0x3a45caf9, 0xd5177c18,
+    0x3f91a17a, 0xd0c3179b, 0x31ed1dff, 0xdebfab1e, 0x3439767c,
+    0xdb6bc09d, 0x2d1464f5, 0xc246d214, 0x28c00f76, 0xc792b997,
+    0x26bcb3f3, 0xc9ee0512, 0x2368d870, 0xcc3a6e91, 0x49a02ed1,
+    0xa6f29830, 0x4c744552, 0xa326f3b3, 0x4208f9d7, 0xad5a4f36,
+    0x47dc9254, 0xa88e24b5, 0x5ef180dd, 0xb1a3363c, 0x5b25eb5e,
+    0xb4775dbf, 0x555957db, 0xba0be13a, 0x508d3c58, 0xbfdf8ab9,
+    0x670372c9, 0x8851c428, 0x62d7194a, 0x8d85afab, 0x6caba5cf,
+    0x83f9132e, 0x697fce4c, 0x862d78ad, 0x7052dcc5, 0x9f006a24,
+    0x7586b746, 0x9ad401a7, 0x7bfa0bc3, 0x94a8bd22, 0x7e2e6040,
+    0x917cd6a1},
+   {0x00000000, 0x87a6cb43, 0xd43c90c7, 0x539a5b84, 0x730827cf,
+    0xf4aeec8c, 0xa734b708, 0x20927c4b, 0xe6104f9e, 0x61b684dd,
+    0x322cdf59, 0xb58a141a, 0x95186851, 0x12bea312, 0x4124f896,
+    0xc68233d5, 0x1751997d, 0x90f7523e, 0xc36d09ba, 0x44cbc2f9,
+    0x6459beb2, 0xe3ff75f1, 0xb0652e75, 0x37c3e536, 0xf141d6e3,
+    0x76e71da0, 0x257d4624, 0xa2db8d67, 0x8249f12c, 0x05ef3a6f,
+    0x567561eb, 0xd1d3aaa8, 0x2ea332fa, 0xa905f9b9, 0xfa9fa23d,
+    0x7d39697e, 0x5dab1535, 0xda0dde76, 0x899785f2, 0x0e314eb1,
+    0xc8b37d64, 0x4f15b627, 0x1c8feda3, 0x9b2926e0, 0xbbbb5aab,
+    0x3c1d91e8, 0x6f87ca6c, 0xe821012f, 0x39f2ab87, 0xbe5460c4,
+    0xedce3b40, 0x6a68f003, 0x4afa8c48, 0xcd5c470b, 0x9ec61c8f,
+    0x1960d7cc, 0xdfe2e419, 0x58442f5a, 0x0bde74de, 0x8c78bf9d,
+    0xaceac3d6, 0x2b4c0895, 0x78d65311, 0xff709852, 0x5d4665f4,
+    0xdae0aeb7, 0x897af533, 0x0edc3e70, 0x2e4e423b, 0xa9e88978,
+    0xfa72d2fc, 0x7dd419bf, 0xbb562a6a, 0x3cf0e129, 0x6f6abaad,
+    0xe8cc71ee, 0xc85e0da5, 0x4ff8c6e6, 0x1c629d62, 0x9bc45621,
+    0x4a17fc89, 0xcdb137ca, 0x9e2b6c4e, 0x198da70d, 0x391fdb46,
+    0xbeb91005, 0xed234b81, 0x6a8580c2, 0xac07b317, 0x2ba17854,
+    0x783b23d0, 0xff9de893, 0xdf0f94d8, 0x58a95f9b, 0x0b33041f,
+    0x8c95cf5c, 0x73e5570e, 0xf4439c4d, 0xa7d9c7c9, 0x207f0c8a,
+    0x00ed70c1, 0x874bbb82, 0xd4d1e006, 0x53772b45, 0x95f51890,
+    0x1253d3d3, 0x41c98857, 0xc66f4314, 0xe6fd3f5f, 0x615bf41c,
+    0x32c1af98, 0xb56764db, 0x64b4ce73, 0xe3120530, 0xb0885eb4,
+    0x372e95f7, 0x17bce9bc, 0x901a22ff, 0xc380797b, 0x4426b238,
+    0x82a481ed, 0x05024aae, 0x5698112a, 0xd13eda69, 0xf1aca622,
+    0x760a6d61, 0x259036e5, 0xa236fda6, 0xba8ccbe8, 0x3d2a00ab,
+    0x6eb05b2f, 0xe916906c, 0xc984ec27, 0x4e222764, 0x1db87ce0,
+    0x9a1eb7a3, 0x5c9c8476, 0xdb3a4f35, 0x88a014b1, 0x0f06dff2,
+    0x2f94a3b9, 0xa83268fa, 0xfba8337e, 0x7c0ef83d, 0xaddd5295,
+    0x2a7b99d6, 0x79e1c252, 0xfe470911, 0xded5755a, 0x5973be19,
+    0x0ae9e59d, 0x8d4f2ede, 0x4bcd1d0b, 0xcc6bd648, 0x9ff18dcc,
+    0x1857468f, 0x38c53ac4, 0xbf63f187, 0xecf9aa03, 0x6b5f6140,
+    0x942ff912, 0x13893251, 0x401369d5, 0xc7b5a296, 0xe727dedd,
+    0x6081159e, 0x331b4e1a, 0xb4bd8559, 0x723fb68c, 0xf5997dcf,
+    0xa603264b, 0x21a5ed08, 0x01379143, 0x86915a00, 0xd50b0184,
+    0x52adcac7, 0x837e606f, 0x04d8ab2c, 0x5742f0a8, 0xd0e43beb,
+    0xf07647a0, 0x77d08ce3, 0x244ad767, 0xa3ec1c24, 0x656e2ff1,
+    0xe2c8e4b2, 0xb152bf36, 0x36f47475, 0x1666083e, 0x91c0c37d,
+    0xc25a98f9, 0x45fc53ba, 0xe7caae1c, 0x606c655f, 0x33f63edb,
+    0xb450f598, 0x94c289d3, 0x13644290, 0x40fe1914, 0xc758d257,
+    0x01dae182, 0x867c2ac1, 0xd5e67145, 0x5240ba06, 0x72d2c64d,
+    0xf5740d0e, 0xa6ee568a, 0x21489dc9, 0xf09b3761, 0x773dfc22,
+    0x24a7a7a6, 0xa3016ce5, 0x839310ae, 0x0435dbed, 0x57af8069,
+    0xd0094b2a, 0x168b78ff, 0x912db3bc, 0xc2b7e838, 0x4511237b,
+    0x65835f30, 0xe2259473, 0xb1bfcff7, 0x361904b4, 0xc9699ce6,
+    0x4ecf57a5, 0x1d550c21, 0x9af3c762, 0xba61bb29, 0x3dc7706a,
+    0x6e5d2bee, 0xe9fbe0ad, 0x2f79d378, 0xa8df183b, 0xfb4543bf,
+    0x7ce388fc, 0x5c71f4b7, 0xdbd73ff4, 0x884d6470, 0x0febaf33,
+    0xde38059b, 0x599eced8, 0x0a04955c, 0x8da25e1f, 0xad302254,
+    0x2a96e917, 0x790cb293, 0xfeaa79d0, 0x38284a05, 0xbf8e8146,
+    0xec14dac2, 0x6bb21181, 0x4b206dca, 0xcc86a689, 0x9f1cfd0d,
+    0x18ba364e}};
+
+local const z_word_t FAR crc_braid_big_table[][256] = {
+   {0x0000000000000000, 0x43cba68700000000, 0xc7903cd400000000,
+    0x845b9a5300000000, 0xcf27087300000000, 0x8cecaef400000000,
+    0x08b734a700000000, 0x4b7c922000000000, 0x9e4f10e600000000,
+    0xdd84b66100000000, 0x59df2c3200000000, 0x1a148ab500000000,
+    0x5168189500000000, 0x12a3be1200000000, 0x96f8244100000000,
+    0xd53382c600000000, 0x7d99511700000000, 0x3e52f79000000000,
+    0xba096dc300000000, 0xf9c2cb4400000000, 0xb2be596400000000,
+    0xf175ffe300000000, 0x752e65b000000000, 0x36e5c33700000000,
+    0xe3d641f100000000, 0xa01de77600000000, 0x24467d2500000000,
+    0x678ddba200000000, 0x2cf1498200000000, 0x6f3aef0500000000,
+    0xeb61755600000000, 0xa8aad3d100000000, 0xfa32a32e00000000,
+    0xb9f905a900000000, 0x3da29ffa00000000, 0x7e69397d00000000,
+    0x3515ab5d00000000, 0x76de0dda00000000, 0xf285978900000000,
+    0xb14e310e00000000, 0x647db3c800000000, 0x27b6154f00000000,
+    0xa3ed8f1c00000000, 0xe026299b00000000, 0xab5abbbb00000000,
+    0xe8911d3c00000000, 0x6cca876f00000000, 0x2f0121e800000000,
+    0x87abf23900000000, 0xc46054be00000000, 0x403bceed00000000,
+    0x03f0686a00000000, 0x488cfa4a00000000, 0x0b475ccd00000000,
+    0x8f1cc69e00000000, 0xccd7601900000000, 0x19e4e2df00000000,
+    0x5a2f445800000000, 0xde74de0b00000000, 0x9dbf788c00000000,
+    0xd6c3eaac00000000, 0x95084c2b00000000, 0x1153d67800000000,
+    0x529870ff00000000, 0xf465465d00000000, 0xb7aee0da00000000,
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+    0xca6d204b00000000, 0x89a686cc00000000, 0x0dfd1c9f00000000,
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+    0xc30bfa7b00000000, 0x22bda89400000000, 0x40602e7e00000000,
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+    0x0169160200000000, 0x59e9f4d500000000, 0xf06fa27600000000,
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+    0xca4da9af00000000, 0x59ebed4e00000000, 0x1fd08a2b00000000,
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+    0xb8a22eeb00000000, 0x6c485d7000000000, 0x6032940b00000000,
+    0xb4d8e79000000000, 0x89e102e600000000, 0x5d0b717d00000000,
+    0xf393c80b00000000, 0x2779bb9000000000, 0x1a405ee600000000,
+    0xceaa2d7d00000000, 0x46712d0b00000000, 0x929b5e9000000000,
+    0xafa2bbe600000000, 0x7b48c87d00000000, 0xd5d0710b00000000,
+    0x013a029000000000, 0x3c03e7e600000000, 0xe8e9947d00000000,
+    0x2cb4e60a00000000, 0xf85e959100000000, 0xc56770e700000000,
+    0x118d037c00000000, 0xbf15ba0a00000000, 0x6bffc99100000000,
+    0x56c62ce700000000, 0x822c5f7c00000000, 0x0af75f0a00000000,
+    0xde1d2c9100000000, 0xe324c9e700000000, 0x37ceba7c00000000,
+    0x9956030a00000000, 0x4dbc709100000000, 0x708595e700000000,
+    0xa46fe67c00000000, 0xf83e710900000000, 0x2cd4029200000000,
+    0x11ede7e400000000, 0xc507947f00000000, 0x6b9f2d0900000000,
+    0xbf755e9200000000, 0x824cbbe400000000, 0x56a6c87f00000000,
+    0xde7dc80900000000, 0x0a97bb9200000000, 0x37ae5ee400000000,
+    0xe3442d7f00000000, 0x4ddc940900000000, 0x9936e79200000000,
+    0xa40f02e400000000, 0x70e5717f00000000, 0xb4b8030800000000,
+    0x6052709300000000, 0x5d6b95e500000000, 0x8981e67e00000000,
+    0x27195f0800000000, 0xf3f32c9300000000, 0xcecac9e500000000,
+    0x1a20ba7e00000000, 0x92fbba0800000000, 0x4611c99300000000,
+    0x7b282ce500000000, 0xafc25f7e00000000, 0x015ae60800000000,
+    0xd5b0959300000000, 0xe88970e500000000, 0x3c63037e00000000,
+    0x502b5e0e00000000, 0x84c12d9500000000, 0xb9f8c8e300000000,
+    0x6d12bb7800000000, 0xc38a020e00000000, 0x1760719500000000,
+    0x2a5994e300000000, 0xfeb3e77800000000, 0x7668e70e00000000,
+    0xa282949500000000, 0x9fbb71e300000000, 0x4b51027800000000,
+    0xe5c9bb0e00000000, 0x3123c89500000000, 0x0c1a2de300000000,
+    0xd8f05e7800000000, 0x1cad2c0f00000000, 0xc8475f9400000000,
+    0xf57ebae200000000, 0x2194c97900000000, 0x8f0c700f00000000,
+    0x5be6039400000000, 0x66dfe6e200000000, 0xb235957900000000,
+    0x3aee950f00000000, 0xee04e69400000000, 0xd33d03e200000000,
+    0x07d7707900000000, 0xa94fc90f00000000, 0x7da5ba9400000000,
+    0x409c5fe200000000, 0x94762c7900000000, 0xc827bb0c00000000,
+    0x1ccdc89700000000, 0x21f42de100000000, 0xf51e5e7a00000000,
+    0x5b86e70c00000000, 0x8f6c949700000000, 0xb25571e100000000,
+    0x66bf027a00000000, 0xee64020c00000000, 0x3a8e719700000000,
+    0x07b794e100000000, 0xd35de77a00000000, 0x7dc55e0c00000000,
+    0xa92f2d9700000000, 0x9416c8e100000000, 0x40fcbb7a00000000,
+    0x84a1c90d00000000, 0x504bba9600000000, 0x6d725fe000000000,
+    0xb9982c7b00000000, 0x1700950d00000000, 0xc3eae69600000000,
+    0xfed303e000000000, 0x2a39707b00000000, 0xa2e2700d00000000,
+    0x7608039600000000, 0x4b31e6e000000000, 0x9fdb957b00000000,
+    0x31432c0d00000000, 0xe5a95f9600000000, 0xd890bae000000000,
+    0x0c7ac97b00000000},
+   {0x0000000000000000, 0x2765258100000000, 0x0fcc3bd900000000,
+    0x28a91e5800000000, 0x5f9e066900000000, 0x78fb23e800000000,
+    0x50523db000000000, 0x7737183100000000, 0xbe3c0dd200000000,
+    0x9959285300000000, 0xb1f0360b00000000, 0x9695138a00000000,
+    0xe1a20bbb00000000, 0xc6c72e3a00000000, 0xee6e306200000000,
+    0xc90b15e300000000, 0x3d7f6b7f00000000, 0x1a1a4efe00000000,
+    0x32b350a600000000, 0x15d6752700000000, 0x62e16d1600000000,
+    0x4584489700000000, 0x6d2d56cf00000000, 0x4a48734e00000000,
+    0x834366ad00000000, 0xa426432c00000000, 0x8c8f5d7400000000,
+    0xabea78f500000000, 0xdcdd60c400000000, 0xfbb8454500000000,
+    0xd3115b1d00000000, 0xf4747e9c00000000, 0x7afed6fe00000000,
+    0x5d9bf37f00000000, 0x7532ed2700000000, 0x5257c8a600000000,
+    0x2560d09700000000, 0x0205f51600000000, 0x2aaceb4e00000000,
+    0x0dc9cecf00000000, 0xc4c2db2c00000000, 0xe3a7fead00000000,
+    0xcb0ee0f500000000, 0xec6bc57400000000, 0x9b5cdd4500000000,
+    0xbc39f8c400000000, 0x9490e69c00000000, 0xb3f5c31d00000000,
+    0x4781bd8100000000, 0x60e4980000000000, 0x484d865800000000,
+    0x6f28a3d900000000, 0x181fbbe800000000, 0x3f7a9e6900000000,
+    0x17d3803100000000, 0x30b6a5b000000000, 0xf9bdb05300000000,
+    0xded895d200000000, 0xf6718b8a00000000, 0xd114ae0b00000000,
+    0xa623b63a00000000, 0x814693bb00000000, 0xa9ef8de300000000,
+    0x8e8aa86200000000, 0xb5fadc2600000000, 0x929ff9a700000000,
+    0xba36e7ff00000000, 0x9d53c27e00000000, 0xea64da4f00000000,
+    0xcd01ffce00000000, 0xe5a8e19600000000, 0xc2cdc41700000000,
+    0x0bc6d1f400000000, 0x2ca3f47500000000, 0x040aea2d00000000,
+    0x236fcfac00000000, 0x5458d79d00000000, 0x733df21c00000000,
+    0x5b94ec4400000000, 0x7cf1c9c500000000, 0x8885b75900000000,
+    0xafe092d800000000, 0x87498c8000000000, 0xa02ca90100000000,
+    0xd71bb13000000000, 0xf07e94b100000000, 0xd8d78ae900000000,
+    0xffb2af6800000000, 0x36b9ba8b00000000, 0x11dc9f0a00000000,
+    0x3975815200000000, 0x1e10a4d300000000, 0x6927bce200000000,
+    0x4e42996300000000, 0x66eb873b00000000, 0x418ea2ba00000000,
+    0xcf040ad800000000, 0xe8612f5900000000, 0xc0c8310100000000,
+    0xe7ad148000000000, 0x909a0cb100000000, 0xb7ff293000000000,
+    0x9f56376800000000, 0xb83312e900000000, 0x7138070a00000000,
+    0x565d228b00000000, 0x7ef43cd300000000, 0x5991195200000000,
+    0x2ea6016300000000, 0x09c324e200000000, 0x216a3aba00000000,
+    0x060f1f3b00000000, 0xf27b61a700000000, 0xd51e442600000000,
+    0xfdb75a7e00000000, 0xdad27fff00000000, 0xade567ce00000000,
+    0x8a80424f00000000, 0xa2295c1700000000, 0x854c799600000000,
+    0x4c476c7500000000, 0x6b2249f400000000, 0x438b57ac00000000,
+    0x64ee722d00000000, 0x13d96a1c00000000, 0x34bc4f9d00000000,
+    0x1c1551c500000000, 0x3b70744400000000, 0x6af5b94d00000000,
+    0x4d909ccc00000000, 0x6539829400000000, 0x425ca71500000000,
+    0x356bbf2400000000, 0x120e9aa500000000, 0x3aa784fd00000000,
+    0x1dc2a17c00000000, 0xd4c9b49f00000000, 0xf3ac911e00000000,
+    0xdb058f4600000000, 0xfc60aac700000000, 0x8b57b2f600000000,
+    0xac32977700000000, 0x849b892f00000000, 0xa3feacae00000000,
+    0x578ad23200000000, 0x70eff7b300000000, 0x5846e9eb00000000,
+    0x7f23cc6a00000000, 0x0814d45b00000000, 0x2f71f1da00000000,
+    0x07d8ef8200000000, 0x20bdca0300000000, 0xe9b6dfe000000000,
+    0xced3fa6100000000, 0xe67ae43900000000, 0xc11fc1b800000000,
+    0xb628d98900000000, 0x914dfc0800000000, 0xb9e4e25000000000,
+    0x9e81c7d100000000, 0x100b6fb300000000, 0x376e4a3200000000,
+    0x1fc7546a00000000, 0x38a271eb00000000, 0x4f9569da00000000,
+    0x68f04c5b00000000, 0x4059520300000000, 0x673c778200000000,
+    0xae37626100000000, 0x895247e000000000, 0xa1fb59b800000000,
+    0x869e7c3900000000, 0xf1a9640800000000, 0xd6cc418900000000,
+    0xfe655fd100000000, 0xd9007a5000000000, 0x2d7404cc00000000,
+    0x0a11214d00000000, 0x22b83f1500000000, 0x05dd1a9400000000,
+    0x72ea02a500000000, 0x558f272400000000, 0x7d26397c00000000,
+    0x5a431cfd00000000, 0x9348091e00000000, 0xb42d2c9f00000000,
+    0x9c8432c700000000, 0xbbe1174600000000, 0xccd60f7700000000,
+    0xebb32af600000000, 0xc31a34ae00000000, 0xe47f112f00000000,
+    0xdf0f656b00000000, 0xf86a40ea00000000, 0xd0c35eb200000000,
+    0xf7a67b3300000000, 0x8091630200000000, 0xa7f4468300000000,
+    0x8f5d58db00000000, 0xa8387d5a00000000, 0x613368b900000000,
+    0x46564d3800000000, 0x6eff536000000000, 0x499a76e100000000,
+    0x3ead6ed000000000, 0x19c84b5100000000, 0x3161550900000000,
+    0x1604708800000000, 0xe2700e1400000000, 0xc5152b9500000000,
+    0xedbc35cd00000000, 0xcad9104c00000000, 0xbdee087d00000000,
+    0x9a8b2dfc00000000, 0xb22233a400000000, 0x9547162500000000,
+    0x5c4c03c600000000, 0x7b29264700000000, 0x5380381f00000000,
+    0x74e51d9e00000000, 0x03d205af00000000, 0x24b7202e00000000,
+    0x0c1e3e7600000000, 0x2b7b1bf700000000, 0xa5f1b39500000000,
+    0x8294961400000000, 0xaa3d884c00000000, 0x8d58adcd00000000,
+    0xfa6fb5fc00000000, 0xdd0a907d00000000, 0xf5a38e2500000000,
+    0xd2c6aba400000000, 0x1bcdbe4700000000, 0x3ca89bc600000000,
+    0x1401859e00000000, 0x3364a01f00000000, 0x4453b82e00000000,
+    0x63369daf00000000, 0x4b9f83f700000000, 0x6cfaa67600000000,
+    0x988ed8ea00000000, 0xbfebfd6b00000000, 0x9742e33300000000,
+    0xb027c6b200000000, 0xc710de8300000000, 0xe075fb0200000000,
+    0xc8dce55a00000000, 0xefb9c0db00000000, 0x26b2d53800000000,
+    0x01d7f0b900000000, 0x297eeee100000000, 0x0e1bcb6000000000,
+    0x792cd35100000000, 0x5e49f6d000000000, 0x76e0e88800000000,
+    0x5185cd0900000000}};
+
+#else /* W == 4 */
+
+local const z_crc_t FAR crc_braid_table[][256] = {
+   {0x00000000, 0x9ba54c6f, 0xec3b9e9f, 0x779ed2f0, 0x03063b7f,
+    0x98a37710, 0xef3da5e0, 0x7498e98f, 0x060c76fe, 0x9da93a91,
+    0xea37e861, 0x7192a40e, 0x050a4d81, 0x9eaf01ee, 0xe931d31e,
+    0x72949f71, 0x0c18edfc, 0x97bda193, 0xe0237363, 0x7b863f0c,
+    0x0f1ed683, 0x94bb9aec, 0xe325481c, 0x78800473, 0x0a149b02,
+    0x91b1d76d, 0xe62f059d, 0x7d8a49f2, 0x0912a07d, 0x92b7ec12,
+    0xe5293ee2, 0x7e8c728d, 0x1831dbf8, 0x83949797, 0xf40a4567,
+    0x6faf0908, 0x1b37e087, 0x8092ace8, 0xf70c7e18, 0x6ca93277,
+    0x1e3dad06, 0x8598e169, 0xf2063399, 0x69a37ff6, 0x1d3b9679,
+    0x869eda16, 0xf10008e6, 0x6aa54489, 0x14293604, 0x8f8c7a6b,
+    0xf812a89b, 0x63b7e4f4, 0x172f0d7b, 0x8c8a4114, 0xfb1493e4,
+    0x60b1df8b, 0x122540fa, 0x89800c95, 0xfe1ede65, 0x65bb920a,
+    0x11237b85, 0x8a8637ea, 0xfd18e51a, 0x66bda975, 0x3063b7f0,
+    0xabc6fb9f, 0xdc58296f, 0x47fd6500, 0x33658c8f, 0xa8c0c0e0,
+    0xdf5e1210, 0x44fb5e7f, 0x366fc10e, 0xadca8d61, 0xda545f91,
+    0x41f113fe, 0x3569fa71, 0xaeccb61e, 0xd95264ee, 0x42f72881,
+    0x3c7b5a0c, 0xa7de1663, 0xd040c493, 0x4be588fc, 0x3f7d6173,
+    0xa4d82d1c, 0xd346ffec, 0x48e3b383, 0x3a772cf2, 0xa1d2609d,
+    0xd64cb26d, 0x4de9fe02, 0x3971178d, 0xa2d45be2, 0xd54a8912,
+    0x4eefc57d, 0x28526c08, 0xb3f72067, 0xc469f297, 0x5fccbef8,
+    0x2b545777, 0xb0f11b18, 0xc76fc9e8, 0x5cca8587, 0x2e5e1af6,
+    0xb5fb5699, 0xc2658469, 0x59c0c806, 0x2d582189, 0xb6fd6de6,
+    0xc163bf16, 0x5ac6f379, 0x244a81f4, 0xbfefcd9b, 0xc8711f6b,
+    0x53d45304, 0x274cba8b, 0xbce9f6e4, 0xcb772414, 0x50d2687b,
+    0x2246f70a, 0xb9e3bb65, 0xce7d6995, 0x55d825fa, 0x2140cc75,
+    0xbae5801a, 0xcd7b52ea, 0x56de1e85, 0x60c76fe0, 0xfb62238f,
+    0x8cfcf17f, 0x1759bd10, 0x63c1549f, 0xf86418f0, 0x8ffaca00,
+    0x145f866f, 0x66cb191e, 0xfd6e5571, 0x8af08781, 0x1155cbee,
+    0x65cd2261, 0xfe686e0e, 0x89f6bcfe, 0x1253f091, 0x6cdf821c,
+    0xf77ace73, 0x80e41c83, 0x1b4150ec, 0x6fd9b963, 0xf47cf50c,
+    0x83e227fc, 0x18476b93, 0x6ad3f4e2, 0xf176b88d, 0x86e86a7d,
+    0x1d4d2612, 0x69d5cf9d, 0xf27083f2, 0x85ee5102, 0x1e4b1d6d,
+    0x78f6b418, 0xe353f877, 0x94cd2a87, 0x0f6866e8, 0x7bf08f67,
+    0xe055c308, 0x97cb11f8, 0x0c6e5d97, 0x7efac2e6, 0xe55f8e89,
+    0x92c15c79, 0x09641016, 0x7dfcf999, 0xe659b5f6, 0x91c76706,
+    0x0a622b69, 0x74ee59e4, 0xef4b158b, 0x98d5c77b, 0x03708b14,
+    0x77e8629b, 0xec4d2ef4, 0x9bd3fc04, 0x0076b06b, 0x72e22f1a,
+    0xe9476375, 0x9ed9b185, 0x057cfdea, 0x71e41465, 0xea41580a,
+    0x9ddf8afa, 0x067ac695, 0x50a4d810, 0xcb01947f, 0xbc9f468f,
+    0x273a0ae0, 0x53a2e36f, 0xc807af00, 0xbf997df0, 0x243c319f,
+    0x56a8aeee, 0xcd0de281, 0xba933071, 0x21367c1e, 0x55ae9591,
+    0xce0bd9fe, 0xb9950b0e, 0x22304761, 0x5cbc35ec, 0xc7197983,
+    0xb087ab73, 0x2b22e71c, 0x5fba0e93, 0xc41f42fc, 0xb381900c,
+    0x2824dc63, 0x5ab04312, 0xc1150f7d, 0xb68bdd8d, 0x2d2e91e2,
+    0x59b6786d, 0xc2133402, 0xb58de6f2, 0x2e28aa9d, 0x489503e8,
+    0xd3304f87, 0xa4ae9d77, 0x3f0bd118, 0x4b933897, 0xd03674f8,
+    0xa7a8a608, 0x3c0dea67, 0x4e997516, 0xd53c3979, 0xa2a2eb89,
+    0x3907a7e6, 0x4d9f4e69, 0xd63a0206, 0xa1a4d0f6, 0x3a019c99,
+    0x448dee14, 0xdf28a27b, 0xa8b6708b, 0x33133ce4, 0x478bd56b,
+    0xdc2e9904, 0xabb04bf4, 0x3015079b, 0x428198ea, 0xd924d485,
+    0xaeba0675, 0x351f4a1a, 0x4187a395, 0xda22effa, 0xadbc3d0a,
+    0x36197165},
+   {0x00000000, 0xc18edfc0, 0x586cb9c1, 0x99e26601, 0xb0d97382,
+    0x7157ac42, 0xe8b5ca43, 0x293b1583, 0xbac3e145, 0x7b4d3e85,
+    0xe2af5884, 0x23218744, 0x0a1a92c7, 0xcb944d07, 0x52762b06,
+    0x93f8f4c6, 0xaef6c4cb, 0x6f781b0b, 0xf69a7d0a, 0x3714a2ca,
+    0x1e2fb749, 0xdfa16889, 0x46430e88, 0x87cdd148, 0x1435258e,
+    0xd5bbfa4e, 0x4c599c4f, 0x8dd7438f, 0xa4ec560c, 0x656289cc,
+    0xfc80efcd, 0x3d0e300d, 0x869c8fd7, 0x47125017, 0xdef03616,
+    0x1f7ee9d6, 0x3645fc55, 0xf7cb2395, 0x6e294594, 0xafa79a54,
+    0x3c5f6e92, 0xfdd1b152, 0x6433d753, 0xa5bd0893, 0x8c861d10,
+    0x4d08c2d0, 0xd4eaa4d1, 0x15647b11, 0x286a4b1c, 0xe9e494dc,
+    0x7006f2dd, 0xb1882d1d, 0x98b3389e, 0x593de75e, 0xc0df815f,
+    0x01515e9f, 0x92a9aa59, 0x53277599, 0xcac51398, 0x0b4bcc58,
+    0x2270d9db, 0xe3fe061b, 0x7a1c601a, 0xbb92bfda, 0xd64819ef,
+    0x17c6c62f, 0x8e24a02e, 0x4faa7fee, 0x66916a6d, 0xa71fb5ad,
+    0x3efdd3ac, 0xff730c6c, 0x6c8bf8aa, 0xad05276a, 0x34e7416b,
+    0xf5699eab, 0xdc528b28, 0x1ddc54e8, 0x843e32e9, 0x45b0ed29,
+    0x78bedd24, 0xb93002e4, 0x20d264e5, 0xe15cbb25, 0xc867aea6,
+    0x09e97166, 0x900b1767, 0x5185c8a7, 0xc27d3c61, 0x03f3e3a1,
+    0x9a1185a0, 0x5b9f5a60, 0x72a44fe3, 0xb32a9023, 0x2ac8f622,
+    0xeb4629e2, 0x50d49638, 0x915a49f8, 0x08b82ff9, 0xc936f039,
+    0xe00de5ba, 0x21833a7a, 0xb8615c7b, 0x79ef83bb, 0xea17777d,
+    0x2b99a8bd, 0xb27bcebc, 0x73f5117c, 0x5ace04ff, 0x9b40db3f,
+    0x02a2bd3e, 0xc32c62fe, 0xfe2252f3, 0x3fac8d33, 0xa64eeb32,
+    0x67c034f2, 0x4efb2171, 0x8f75feb1, 0x169798b0, 0xd7194770,
+    0x44e1b3b6, 0x856f6c76, 0x1c8d0a77, 0xdd03d5b7, 0xf438c034,
+    0x35b61ff4, 0xac5479f5, 0x6ddaa635, 0x77e1359f, 0xb66fea5f,
+    0x2f8d8c5e, 0xee03539e, 0xc738461d, 0x06b699dd, 0x9f54ffdc,
+    0x5eda201c, 0xcd22d4da, 0x0cac0b1a, 0x954e6d1b, 0x54c0b2db,
+    0x7dfba758, 0xbc757898, 0x25971e99, 0xe419c159, 0xd917f154,
+    0x18992e94, 0x817b4895, 0x40f59755, 0x69ce82d6, 0xa8405d16,
+    0x31a23b17, 0xf02ce4d7, 0x63d41011, 0xa25acfd1, 0x3bb8a9d0,
+    0xfa367610, 0xd30d6393, 0x1283bc53, 0x8b61da52, 0x4aef0592,
+    0xf17dba48, 0x30f36588, 0xa9110389, 0x689fdc49, 0x41a4c9ca,
+    0x802a160a, 0x19c8700b, 0xd846afcb, 0x4bbe5b0d, 0x8a3084cd,
+    0x13d2e2cc, 0xd25c3d0c, 0xfb67288f, 0x3ae9f74f, 0xa30b914e,
+    0x62854e8e, 0x5f8b7e83, 0x9e05a143, 0x07e7c742, 0xc6691882,
+    0xef520d01, 0x2edcd2c1, 0xb73eb4c0, 0x76b06b00, 0xe5489fc6,
+    0x24c64006, 0xbd242607, 0x7caaf9c7, 0x5591ec44, 0x941f3384,
+    0x0dfd5585, 0xcc738a45, 0xa1a92c70, 0x6027f3b0, 0xf9c595b1,
+    0x384b4a71, 0x11705ff2, 0xd0fe8032, 0x491ce633, 0x889239f3,
+    0x1b6acd35, 0xdae412f5, 0x430674f4, 0x8288ab34, 0xabb3beb7,
+    0x6a3d6177, 0xf3df0776, 0x3251d8b6, 0x0f5fe8bb, 0xced1377b,
+    0x5733517a, 0x96bd8eba, 0xbf869b39, 0x7e0844f9, 0xe7ea22f8,
+    0x2664fd38, 0xb59c09fe, 0x7412d63e, 0xedf0b03f, 0x2c7e6fff,
+    0x05457a7c, 0xc4cba5bc, 0x5d29c3bd, 0x9ca71c7d, 0x2735a3a7,
+    0xe6bb7c67, 0x7f591a66, 0xbed7c5a6, 0x97ecd025, 0x56620fe5,
+    0xcf8069e4, 0x0e0eb624, 0x9df642e2, 0x5c789d22, 0xc59afb23,
+    0x041424e3, 0x2d2f3160, 0xeca1eea0, 0x754388a1, 0xb4cd5761,
+    0x89c3676c, 0x484db8ac, 0xd1afdead, 0x1021016d, 0x391a14ee,
+    0xf894cb2e, 0x6176ad2f, 0xa0f872ef, 0x33008629, 0xf28e59e9,
+    0x6b6c3fe8, 0xaae2e028, 0x83d9f5ab, 0x42572a6b, 0xdbb54c6a,
+    0x1a3b93aa},
+   {0x00000000, 0xefc26b3e, 0x04f5d03d, 0xeb37bb03, 0x09eba07a,
+    0xe629cb44, 0x0d1e7047, 0xe2dc1b79, 0x13d740f4, 0xfc152bca,
+    0x172290c9, 0xf8e0fbf7, 0x1a3ce08e, 0xf5fe8bb0, 0x1ec930b3,
+    0xf10b5b8d, 0x27ae81e8, 0xc86cead6, 0x235b51d5, 0xcc993aeb,
+    0x2e452192, 0xc1874aac, 0x2ab0f1af, 0xc5729a91, 0x3479c11c,
+    0xdbbbaa22, 0x308c1121, 0xdf4e7a1f, 0x3d926166, 0xd2500a58,
+    0x3967b15b, 0xd6a5da65, 0x4f5d03d0, 0xa09f68ee, 0x4ba8d3ed,
+    0xa46ab8d3, 0x46b6a3aa, 0xa974c894, 0x42437397, 0xad8118a9,
+    0x5c8a4324, 0xb348281a, 0x587f9319, 0xb7bdf827, 0x5561e35e,
+    0xbaa38860, 0x51943363, 0xbe56585d, 0x68f38238, 0x8731e906,
+    0x6c065205, 0x83c4393b, 0x61182242, 0x8eda497c, 0x65edf27f,
+    0x8a2f9941, 0x7b24c2cc, 0x94e6a9f2, 0x7fd112f1, 0x901379cf,
+    0x72cf62b6, 0x9d0d0988, 0x763ab28b, 0x99f8d9b5, 0x9eba07a0,
+    0x71786c9e, 0x9a4fd79d, 0x758dbca3, 0x9751a7da, 0x7893cce4,
+    0x93a477e7, 0x7c661cd9, 0x8d6d4754, 0x62af2c6a, 0x89989769,
+    0x665afc57, 0x8486e72e, 0x6b448c10, 0x80733713, 0x6fb15c2d,
+    0xb9148648, 0x56d6ed76, 0xbde15675, 0x52233d4b, 0xb0ff2632,
+    0x5f3d4d0c, 0xb40af60f, 0x5bc89d31, 0xaac3c6bc, 0x4501ad82,
+    0xae361681, 0x41f47dbf, 0xa32866c6, 0x4cea0df8, 0xa7ddb6fb,
+    0x481fddc5, 0xd1e70470, 0x3e256f4e, 0xd512d44d, 0x3ad0bf73,
+    0xd80ca40a, 0x37cecf34, 0xdcf97437, 0x333b1f09, 0xc2304484,
+    0x2df22fba, 0xc6c594b9, 0x2907ff87, 0xcbdbe4fe, 0x24198fc0,
+    0xcf2e34c3, 0x20ec5ffd, 0xf6498598, 0x198beea6, 0xf2bc55a5,
+    0x1d7e3e9b, 0xffa225e2, 0x10604edc, 0xfb57f5df, 0x14959ee1,
+    0xe59ec56c, 0x0a5cae52, 0xe16b1551, 0x0ea97e6f, 0xec756516,
+    0x03b70e28, 0xe880b52b, 0x0742de15, 0xe6050901, 0x09c7623f,
+    0xe2f0d93c, 0x0d32b202, 0xefeea97b, 0x002cc245, 0xeb1b7946,
+    0x04d91278, 0xf5d249f5, 0x1a1022cb, 0xf12799c8, 0x1ee5f2f6,
+    0xfc39e98f, 0x13fb82b1, 0xf8cc39b2, 0x170e528c, 0xc1ab88e9,
+    0x2e69e3d7, 0xc55e58d4, 0x2a9c33ea, 0xc8402893, 0x278243ad,
+    0xccb5f8ae, 0x23779390, 0xd27cc81d, 0x3dbea323, 0xd6891820,
+    0x394b731e, 0xdb976867, 0x34550359, 0xdf62b85a, 0x30a0d364,
+    0xa9580ad1, 0x469a61ef, 0xadaddaec, 0x426fb1d2, 0xa0b3aaab,
+    0x4f71c195, 0xa4467a96, 0x4b8411a8, 0xba8f4a25, 0x554d211b,
+    0xbe7a9a18, 0x51b8f126, 0xb364ea5f, 0x5ca68161, 0xb7913a62,
+    0x5853515c, 0x8ef68b39, 0x6134e007, 0x8a035b04, 0x65c1303a,
+    0x871d2b43, 0x68df407d, 0x83e8fb7e, 0x6c2a9040, 0x9d21cbcd,
+    0x72e3a0f3, 0x99d41bf0, 0x761670ce, 0x94ca6bb7, 0x7b080089,
+    0x903fbb8a, 0x7ffdd0b4, 0x78bf0ea1, 0x977d659f, 0x7c4ade9c,
+    0x9388b5a2, 0x7154aedb, 0x9e96c5e5, 0x75a17ee6, 0x9a6315d8,
+    0x6b684e55, 0x84aa256b, 0x6f9d9e68, 0x805ff556, 0x6283ee2f,
+    0x8d418511, 0x66763e12, 0x89b4552c, 0x5f118f49, 0xb0d3e477,
+    0x5be45f74, 0xb426344a, 0x56fa2f33, 0xb938440d, 0x520fff0e,
+    0xbdcd9430, 0x4cc6cfbd, 0xa304a483, 0x48331f80, 0xa7f174be,
+    0x452d6fc7, 0xaaef04f9, 0x41d8bffa, 0xae1ad4c4, 0x37e20d71,
+    0xd820664f, 0x3317dd4c, 0xdcd5b672, 0x3e09ad0b, 0xd1cbc635,
+    0x3afc7d36, 0xd53e1608, 0x24354d85, 0xcbf726bb, 0x20c09db8,
+    0xcf02f686, 0x2ddeedff, 0xc21c86c1, 0x292b3dc2, 0xc6e956fc,
+    0x104c8c99, 0xff8ee7a7, 0x14b95ca4, 0xfb7b379a, 0x19a72ce3,
+    0xf66547dd, 0x1d52fcde, 0xf29097e0, 0x039bcc6d, 0xec59a753,
+    0x076e1c50, 0xe8ac776e, 0x0a706c17, 0xe5b20729, 0x0e85bc2a,
+    0xe147d714},
+   {0x00000000, 0x177b1443, 0x2ef62886, 0x398d3cc5, 0x5dec510c,
+    0x4a97454f, 0x731a798a, 0x64616dc9, 0xbbd8a218, 0xaca3b65b,
+    0x952e8a9e, 0x82559edd, 0xe634f314, 0xf14fe757, 0xc8c2db92,
+    0xdfb9cfd1, 0xacc04271, 0xbbbb5632, 0x82366af7, 0x954d7eb4,
+    0xf12c137d, 0xe657073e, 0xdfda3bfb, 0xc8a12fb8, 0x1718e069,
+    0x0063f42a, 0x39eec8ef, 0x2e95dcac, 0x4af4b165, 0x5d8fa526,
+    0x640299e3, 0x73798da0, 0x82f182a3, 0x958a96e0, 0xac07aa25,
+    0xbb7cbe66, 0xdf1dd3af, 0xc866c7ec, 0xf1ebfb29, 0xe690ef6a,
+    0x392920bb, 0x2e5234f8, 0x17df083d, 0x00a41c7e, 0x64c571b7,
+    0x73be65f4, 0x4a335931, 0x5d484d72, 0x2e31c0d2, 0x394ad491,
+    0x00c7e854, 0x17bcfc17, 0x73dd91de, 0x64a6859d, 0x5d2bb958,
+    0x4a50ad1b, 0x95e962ca, 0x82927689, 0xbb1f4a4c, 0xac645e0f,
+    0xc80533c6, 0xdf7e2785, 0xe6f31b40, 0xf1880f03, 0xde920307,
+    0xc9e91744, 0xf0642b81, 0xe71f3fc2, 0x837e520b, 0x94054648,
+    0xad887a8d, 0xbaf36ece, 0x654aa11f, 0x7231b55c, 0x4bbc8999,
+    0x5cc79dda, 0x38a6f013, 0x2fdde450, 0x1650d895, 0x012bccd6,
+    0x72524176, 0x65295535, 0x5ca469f0, 0x4bdf7db3, 0x2fbe107a,
+    0x38c50439, 0x014838fc, 0x16332cbf, 0xc98ae36e, 0xdef1f72d,
+    0xe77ccbe8, 0xf007dfab, 0x9466b262, 0x831da621, 0xba909ae4,
+    0xadeb8ea7, 0x5c6381a4, 0x4b1895e7, 0x7295a922, 0x65eebd61,
+    0x018fd0a8, 0x16f4c4eb, 0x2f79f82e, 0x3802ec6d, 0xe7bb23bc,
+    0xf0c037ff, 0xc94d0b3a, 0xde361f79, 0xba5772b0, 0xad2c66f3,
+    0x94a15a36, 0x83da4e75, 0xf0a3c3d5, 0xe7d8d796, 0xde55eb53,
+    0xc92eff10, 0xad4f92d9, 0xba34869a, 0x83b9ba5f, 0x94c2ae1c,
+    0x4b7b61cd, 0x5c00758e, 0x658d494b, 0x72f65d08, 0x169730c1,
+    0x01ec2482, 0x38611847, 0x2f1a0c04, 0x6655004f, 0x712e140c,
+    0x48a328c9, 0x5fd83c8a, 0x3bb95143, 0x2cc24500, 0x154f79c5,
+    0x02346d86, 0xdd8da257, 0xcaf6b614, 0xf37b8ad1, 0xe4009e92,
+    0x8061f35b, 0x971ae718, 0xae97dbdd, 0xb9eccf9e, 0xca95423e,
+    0xddee567d, 0xe4636ab8, 0xf3187efb, 0x97791332, 0x80020771,
+    0xb98f3bb4, 0xaef42ff7, 0x714de026, 0x6636f465, 0x5fbbc8a0,
+    0x48c0dce3, 0x2ca1b12a, 0x3bdaa569, 0x025799ac, 0x152c8def,
+    0xe4a482ec, 0xf3df96af, 0xca52aa6a, 0xdd29be29, 0xb948d3e0,
+    0xae33c7a3, 0x97befb66, 0x80c5ef25, 0x5f7c20f4, 0x480734b7,
+    0x718a0872, 0x66f11c31, 0x029071f8, 0x15eb65bb, 0x2c66597e,
+    0x3b1d4d3d, 0x4864c09d, 0x5f1fd4de, 0x6692e81b, 0x71e9fc58,
+    0x15889191, 0x02f385d2, 0x3b7eb917, 0x2c05ad54, 0xf3bc6285,
+    0xe4c776c6, 0xdd4a4a03, 0xca315e40, 0xae503389, 0xb92b27ca,
+    0x80a61b0f, 0x97dd0f4c, 0xb8c70348, 0xafbc170b, 0x96312bce,
+    0x814a3f8d, 0xe52b5244, 0xf2504607, 0xcbdd7ac2, 0xdca66e81,
+    0x031fa150, 0x1464b513, 0x2de989d6, 0x3a929d95, 0x5ef3f05c,
+    0x4988e41f, 0x7005d8da, 0x677ecc99, 0x14074139, 0x037c557a,
+    0x3af169bf, 0x2d8a7dfc, 0x49eb1035, 0x5e900476, 0x671d38b3,
+    0x70662cf0, 0xafdfe321, 0xb8a4f762, 0x8129cba7, 0x9652dfe4,
+    0xf233b22d, 0xe548a66e, 0xdcc59aab, 0xcbbe8ee8, 0x3a3681eb,
+    0x2d4d95a8, 0x14c0a96d, 0x03bbbd2e, 0x67dad0e7, 0x70a1c4a4,
+    0x492cf861, 0x5e57ec22, 0x81ee23f3, 0x969537b0, 0xaf180b75,
+    0xb8631f36, 0xdc0272ff, 0xcb7966bc, 0xf2f45a79, 0xe58f4e3a,
+    0x96f6c39a, 0x818dd7d9, 0xb800eb1c, 0xaf7bff5f, 0xcb1a9296,
+    0xdc6186d5, 0xe5ecba10, 0xf297ae53, 0x2d2e6182, 0x3a5575c1,
+    0x03d84904, 0x14a35d47, 0x70c2308e, 0x67b924cd, 0x5e341808,
+    0x494f0c4b}};
+
+local const z_word_t FAR crc_braid_big_table[][256] = {
+   {0x00000000, 0x43147b17, 0x8628f62e, 0xc53c8d39, 0x0c51ec5d,
+    0x4f45974a, 0x8a791a73, 0xc96d6164, 0x18a2d8bb, 0x5bb6a3ac,
+    0x9e8a2e95, 0xdd9e5582, 0x14f334e6, 0x57e74ff1, 0x92dbc2c8,
+    0xd1cfb9df, 0x7142c0ac, 0x3256bbbb, 0xf76a3682, 0xb47e4d95,
+    0x7d132cf1, 0x3e0757e6, 0xfb3bdadf, 0xb82fa1c8, 0x69e01817,
+    0x2af46300, 0xefc8ee39, 0xacdc952e, 0x65b1f44a, 0x26a58f5d,
+    0xe3990264, 0xa08d7973, 0xa382f182, 0xe0968a95, 0x25aa07ac,
+    0x66be7cbb, 0xafd31ddf, 0xecc766c8, 0x29fbebf1, 0x6aef90e6,
+    0xbb202939, 0xf834522e, 0x3d08df17, 0x7e1ca400, 0xb771c564,
+    0xf465be73, 0x3159334a, 0x724d485d, 0xd2c0312e, 0x91d44a39,
+    0x54e8c700, 0x17fcbc17, 0xde91dd73, 0x9d85a664, 0x58b92b5d,
+    0x1bad504a, 0xca62e995, 0x89769282, 0x4c4a1fbb, 0x0f5e64ac,
+    0xc63305c8, 0x85277edf, 0x401bf3e6, 0x030f88f1, 0x070392de,
+    0x4417e9c9, 0x812b64f0, 0xc23f1fe7, 0x0b527e83, 0x48460594,
+    0x8d7a88ad, 0xce6ef3ba, 0x1fa14a65, 0x5cb53172, 0x9989bc4b,
+    0xda9dc75c, 0x13f0a638, 0x50e4dd2f, 0x95d85016, 0xd6cc2b01,
+    0x76415272, 0x35552965, 0xf069a45c, 0xb37ddf4b, 0x7a10be2f,
+    0x3904c538, 0xfc384801, 0xbf2c3316, 0x6ee38ac9, 0x2df7f1de,
+    0xe8cb7ce7, 0xabdf07f0, 0x62b26694, 0x21a61d83, 0xe49a90ba,
+    0xa78eebad, 0xa481635c, 0xe795184b, 0x22a99572, 0x61bdee65,
+    0xa8d08f01, 0xebc4f416, 0x2ef8792f, 0x6dec0238, 0xbc23bbe7,
+    0xff37c0f0, 0x3a0b4dc9, 0x791f36de, 0xb07257ba, 0xf3662cad,
+    0x365aa194, 0x754eda83, 0xd5c3a3f0, 0x96d7d8e7, 0x53eb55de,
+    0x10ff2ec9, 0xd9924fad, 0x9a8634ba, 0x5fbab983, 0x1caec294,
+    0xcd617b4b, 0x8e75005c, 0x4b498d65, 0x085df672, 0xc1309716,
+    0x8224ec01, 0x47186138, 0x040c1a2f, 0x4f005566, 0x0c142e71,
+    0xc928a348, 0x8a3cd85f, 0x4351b93b, 0x0045c22c, 0xc5794f15,
+    0x866d3402, 0x57a28ddd, 0x14b6f6ca, 0xd18a7bf3, 0x929e00e4,
+    0x5bf36180, 0x18e71a97, 0xdddb97ae, 0x9ecfecb9, 0x3e4295ca,
+    0x7d56eedd, 0xb86a63e4, 0xfb7e18f3, 0x32137997, 0x71070280,
+    0xb43b8fb9, 0xf72ff4ae, 0x26e04d71, 0x65f43666, 0xa0c8bb5f,
+    0xe3dcc048, 0x2ab1a12c, 0x69a5da3b, 0xac995702, 0xef8d2c15,
+    0xec82a4e4, 0xaf96dff3, 0x6aaa52ca, 0x29be29dd, 0xe0d348b9,
+    0xa3c733ae, 0x66fbbe97, 0x25efc580, 0xf4207c5f, 0xb7340748,
+    0x72088a71, 0x311cf166, 0xf8719002, 0xbb65eb15, 0x7e59662c,
+    0x3d4d1d3b, 0x9dc06448, 0xded41f5f, 0x1be89266, 0x58fce971,
+    0x91918815, 0xd285f302, 0x17b97e3b, 0x54ad052c, 0x8562bcf3,
+    0xc676c7e4, 0x034a4add, 0x405e31ca, 0x893350ae, 0xca272bb9,
+    0x0f1ba680, 0x4c0fdd97, 0x4803c7b8, 0x0b17bcaf, 0xce2b3196,
+    0x8d3f4a81, 0x44522be5, 0x074650f2, 0xc27addcb, 0x816ea6dc,
+    0x50a11f03, 0x13b56414, 0xd689e92d, 0x959d923a, 0x5cf0f35e,
+    0x1fe48849, 0xdad80570, 0x99cc7e67, 0x39410714, 0x7a557c03,
+    0xbf69f13a, 0xfc7d8a2d, 0x3510eb49, 0x7604905e, 0xb3381d67,
+    0xf02c6670, 0x21e3dfaf, 0x62f7a4b8, 0xa7cb2981, 0xe4df5296,
+    0x2db233f2, 0x6ea648e5, 0xab9ac5dc, 0xe88ebecb, 0xeb81363a,
+    0xa8954d2d, 0x6da9c014, 0x2ebdbb03, 0xe7d0da67, 0xa4c4a170,
+    0x61f82c49, 0x22ec575e, 0xf323ee81, 0xb0379596, 0x750b18af,
+    0x361f63b8, 0xff7202dc, 0xbc6679cb, 0x795af4f2, 0x3a4e8fe5,
+    0x9ac3f696, 0xd9d78d81, 0x1ceb00b8, 0x5fff7baf, 0x96921acb,
+    0xd58661dc, 0x10baece5, 0x53ae97f2, 0x82612e2d, 0xc175553a,
+    0x0449d803, 0x475da314, 0x8e30c270, 0xcd24b967, 0x0818345e,
+    0x4b0c4f49},
+   {0x00000000, 0x3e6bc2ef, 0x3dd0f504, 0x03bb37eb, 0x7aa0eb09,
+    0x44cb29e6, 0x47701e0d, 0x791bdce2, 0xf440d713, 0xca2b15fc,
+    0xc9902217, 0xf7fbe0f8, 0x8ee03c1a, 0xb08bfef5, 0xb330c91e,
+    0x8d5b0bf1, 0xe881ae27, 0xd6ea6cc8, 0xd5515b23, 0xeb3a99cc,
+    0x9221452e, 0xac4a87c1, 0xaff1b02a, 0x919a72c5, 0x1cc17934,
+    0x22aabbdb, 0x21118c30, 0x1f7a4edf, 0x6661923d, 0x580a50d2,
+    0x5bb16739, 0x65daa5d6, 0xd0035d4f, 0xee689fa0, 0xedd3a84b,
+    0xd3b86aa4, 0xaaa3b646, 0x94c874a9, 0x97734342, 0xa91881ad,
+    0x24438a5c, 0x1a2848b3, 0x19937f58, 0x27f8bdb7, 0x5ee36155,
+    0x6088a3ba, 0x63339451, 0x5d5856be, 0x3882f368, 0x06e93187,
+    0x0552066c, 0x3b39c483, 0x42221861, 0x7c49da8e, 0x7ff2ed65,
+    0x41992f8a, 0xccc2247b, 0xf2a9e694, 0xf112d17f, 0xcf791390,
+    0xb662cf72, 0x88090d9d, 0x8bb23a76, 0xb5d9f899, 0xa007ba9e,
+    0x9e6c7871, 0x9dd74f9a, 0xa3bc8d75, 0xdaa75197, 0xe4cc9378,
+    0xe777a493, 0xd91c667c, 0x54476d8d, 0x6a2caf62, 0x69979889,
+    0x57fc5a66, 0x2ee78684, 0x108c446b, 0x13377380, 0x2d5cb16f,
+    0x488614b9, 0x76edd656, 0x7556e1bd, 0x4b3d2352, 0x3226ffb0,
+    0x0c4d3d5f, 0x0ff60ab4, 0x319dc85b, 0xbcc6c3aa, 0x82ad0145,
+    0x811636ae, 0xbf7df441, 0xc66628a3, 0xf80dea4c, 0xfbb6dda7,
+    0xc5dd1f48, 0x7004e7d1, 0x4e6f253e, 0x4dd412d5, 0x73bfd03a,
+    0x0aa40cd8, 0x34cfce37, 0x3774f9dc, 0x091f3b33, 0x844430c2,
+    0xba2ff22d, 0xb994c5c6, 0x87ff0729, 0xfee4dbcb, 0xc08f1924,
+    0xc3342ecf, 0xfd5fec20, 0x988549f6, 0xa6ee8b19, 0xa555bcf2,
+    0x9b3e7e1d, 0xe225a2ff, 0xdc4e6010, 0xdff557fb, 0xe19e9514,
+    0x6cc59ee5, 0x52ae5c0a, 0x51156be1, 0x6f7ea90e, 0x166575ec,
+    0x280eb703, 0x2bb580e8, 0x15de4207, 0x010905e6, 0x3f62c709,
+    0x3cd9f0e2, 0x02b2320d, 0x7ba9eeef, 0x45c22c00, 0x46791beb,
+    0x7812d904, 0xf549d2f5, 0xcb22101a, 0xc89927f1, 0xf6f2e51e,
+    0x8fe939fc, 0xb182fb13, 0xb239ccf8, 0x8c520e17, 0xe988abc1,
+    0xd7e3692e, 0xd4585ec5, 0xea339c2a, 0x932840c8, 0xad438227,
+    0xaef8b5cc, 0x90937723, 0x1dc87cd2, 0x23a3be3d, 0x201889d6,
+    0x1e734b39, 0x676897db, 0x59035534, 0x5ab862df, 0x64d3a030,
+    0xd10a58a9, 0xef619a46, 0xecdaadad, 0xd2b16f42, 0xabaab3a0,
+    0x95c1714f, 0x967a46a4, 0xa811844b, 0x254a8fba, 0x1b214d55,
+    0x189a7abe, 0x26f1b851, 0x5fea64b3, 0x6181a65c, 0x623a91b7,
+    0x5c515358, 0x398bf68e, 0x07e03461, 0x045b038a, 0x3a30c165,
+    0x432b1d87, 0x7d40df68, 0x7efbe883, 0x40902a6c, 0xcdcb219d,
+    0xf3a0e372, 0xf01bd499, 0xce701676, 0xb76bca94, 0x8900087b,
+    0x8abb3f90, 0xb4d0fd7f, 0xa10ebf78, 0x9f657d97, 0x9cde4a7c,
+    0xa2b58893, 0xdbae5471, 0xe5c5969e, 0xe67ea175, 0xd815639a,
+    0x554e686b, 0x6b25aa84, 0x689e9d6f, 0x56f55f80, 0x2fee8362,
+    0x1185418d, 0x123e7666, 0x2c55b489, 0x498f115f, 0x77e4d3b0,
+    0x745fe45b, 0x4a3426b4, 0x332ffa56, 0x0d4438b9, 0x0eff0f52,
+    0x3094cdbd, 0xbdcfc64c, 0x83a404a3, 0x801f3348, 0xbe74f1a7,
+    0xc76f2d45, 0xf904efaa, 0xfabfd841, 0xc4d41aae, 0x710de237,
+    0x4f6620d8, 0x4cdd1733, 0x72b6d5dc, 0x0bad093e, 0x35c6cbd1,
+    0x367dfc3a, 0x08163ed5, 0x854d3524, 0xbb26f7cb, 0xb89dc020,
+    0x86f602cf, 0xffedde2d, 0xc1861cc2, 0xc23d2b29, 0xfc56e9c6,
+    0x998c4c10, 0xa7e78eff, 0xa45cb914, 0x9a377bfb, 0xe32ca719,
+    0xdd4765f6, 0xdefc521d, 0xe09790f2, 0x6dcc9b03, 0x53a759ec,
+    0x501c6e07, 0x6e77ace8, 0x176c700a, 0x2907b2e5, 0x2abc850e,
+    0x14d747e1},
+   {0x00000000, 0xc0df8ec1, 0xc1b96c58, 0x0166e299, 0x8273d9b0,
+    0x42ac5771, 0x43cab5e8, 0x83153b29, 0x45e1c3ba, 0x853e4d7b,
+    0x8458afe2, 0x44872123, 0xc7921a0a, 0x074d94cb, 0x062b7652,
+    0xc6f4f893, 0xcbc4f6ae, 0x0b1b786f, 0x0a7d9af6, 0xcaa21437,
+    0x49b72f1e, 0x8968a1df, 0x880e4346, 0x48d1cd87, 0x8e253514,
+    0x4efabbd5, 0x4f9c594c, 0x8f43d78d, 0x0c56eca4, 0xcc896265,
+    0xcdef80fc, 0x0d300e3d, 0xd78f9c86, 0x17501247, 0x1636f0de,
+    0xd6e97e1f, 0x55fc4536, 0x9523cbf7, 0x9445296e, 0x549aa7af,
+    0x926e5f3c, 0x52b1d1fd, 0x53d73364, 0x9308bda5, 0x101d868c,
+    0xd0c2084d, 0xd1a4ead4, 0x117b6415, 0x1c4b6a28, 0xdc94e4e9,
+    0xddf20670, 0x1d2d88b1, 0x9e38b398, 0x5ee73d59, 0x5f81dfc0,
+    0x9f5e5101, 0x59aaa992, 0x99752753, 0x9813c5ca, 0x58cc4b0b,
+    0xdbd97022, 0x1b06fee3, 0x1a601c7a, 0xdabf92bb, 0xef1948d6,
+    0x2fc6c617, 0x2ea0248e, 0xee7faa4f, 0x6d6a9166, 0xadb51fa7,
+    0xacd3fd3e, 0x6c0c73ff, 0xaaf88b6c, 0x6a2705ad, 0x6b41e734,
+    0xab9e69f5, 0x288b52dc, 0xe854dc1d, 0xe9323e84, 0x29edb045,
+    0x24ddbe78, 0xe40230b9, 0xe564d220, 0x25bb5ce1, 0xa6ae67c8,
+    0x6671e909, 0x67170b90, 0xa7c88551, 0x613c7dc2, 0xa1e3f303,
+    0xa085119a, 0x605a9f5b, 0xe34fa472, 0x23902ab3, 0x22f6c82a,
+    0xe22946eb, 0x3896d450, 0xf8495a91, 0xf92fb808, 0x39f036c9,
+    0xbae50de0, 0x7a3a8321, 0x7b5c61b8, 0xbb83ef79, 0x7d7717ea,
+    0xbda8992b, 0xbcce7bb2, 0x7c11f573, 0xff04ce5a, 0x3fdb409b,
+    0x3ebda202, 0xfe622cc3, 0xf35222fe, 0x338dac3f, 0x32eb4ea6,
+    0xf234c067, 0x7121fb4e, 0xb1fe758f, 0xb0989716, 0x704719d7,
+    0xb6b3e144, 0x766c6f85, 0x770a8d1c, 0xb7d503dd, 0x34c038f4,
+    0xf41fb635, 0xf57954ac, 0x35a6da6d, 0x9f35e177, 0x5fea6fb6,
+    0x5e8c8d2f, 0x9e5303ee, 0x1d4638c7, 0xdd99b606, 0xdcff549f,
+    0x1c20da5e, 0xdad422cd, 0x1a0bac0c, 0x1b6d4e95, 0xdbb2c054,
+    0x58a7fb7d, 0x987875bc, 0x991e9725, 0x59c119e4, 0x54f117d9,
+    0x942e9918, 0x95487b81, 0x5597f540, 0xd682ce69, 0x165d40a8,
+    0x173ba231, 0xd7e42cf0, 0x1110d463, 0xd1cf5aa2, 0xd0a9b83b,
+    0x107636fa, 0x93630dd3, 0x53bc8312, 0x52da618b, 0x9205ef4a,
+    0x48ba7df1, 0x8865f330, 0x890311a9, 0x49dc9f68, 0xcac9a441,
+    0x0a162a80, 0x0b70c819, 0xcbaf46d8, 0x0d5bbe4b, 0xcd84308a,
+    0xcce2d213, 0x0c3d5cd2, 0x8f2867fb, 0x4ff7e93a, 0x4e910ba3,
+    0x8e4e8562, 0x837e8b5f, 0x43a1059e, 0x42c7e707, 0x821869c6,
+    0x010d52ef, 0xc1d2dc2e, 0xc0b43eb7, 0x006bb076, 0xc69f48e5,
+    0x0640c624, 0x072624bd, 0xc7f9aa7c, 0x44ec9155, 0x84331f94,
+    0x8555fd0d, 0x458a73cc, 0x702ca9a1, 0xb0f32760, 0xb195c5f9,
+    0x714a4b38, 0xf25f7011, 0x3280fed0, 0x33e61c49, 0xf3399288,
+    0x35cd6a1b, 0xf512e4da, 0xf4740643, 0x34ab8882, 0xb7beb3ab,
+    0x77613d6a, 0x7607dff3, 0xb6d85132, 0xbbe85f0f, 0x7b37d1ce,
+    0x7a513357, 0xba8ebd96, 0x399b86bf, 0xf944087e, 0xf822eae7,
+    0x38fd6426, 0xfe099cb5, 0x3ed61274, 0x3fb0f0ed, 0xff6f7e2c,
+    0x7c7a4505, 0xbca5cbc4, 0xbdc3295d, 0x7d1ca79c, 0xa7a33527,
+    0x677cbbe6, 0x661a597f, 0xa6c5d7be, 0x25d0ec97, 0xe50f6256,
+    0xe46980cf, 0x24b60e0e, 0xe242f69d, 0x229d785c, 0x23fb9ac5,
+    0xe3241404, 0x60312f2d, 0xa0eea1ec, 0xa1884375, 0x6157cdb4,
+    0x6c67c389, 0xacb84d48, 0xaddeafd1, 0x6d012110, 0xee141a39,
+    0x2ecb94f8, 0x2fad7661, 0xef72f8a0, 0x29860033, 0xe9598ef2,
+    0xe83f6c6b, 0x28e0e2aa, 0xabf5d983, 0x6b2a5742, 0x6a4cb5db,
+    0xaa933b1a},
+   {0x00000000, 0x6f4ca59b, 0x9f9e3bec, 0xf0d29e77, 0x7f3b0603,
+    0x1077a398, 0xe0a53def, 0x8fe99874, 0xfe760c06, 0x913aa99d,
+    0x61e837ea, 0x0ea49271, 0x814d0a05, 0xee01af9e, 0x1ed331e9,
+    0x719f9472, 0xfced180c, 0x93a1bd97, 0x637323e0, 0x0c3f867b,
+    0x83d61e0f, 0xec9abb94, 0x1c4825e3, 0x73048078, 0x029b140a,
+    0x6dd7b191, 0x9d052fe6, 0xf2498a7d, 0x7da01209, 0x12ecb792,
+    0xe23e29e5, 0x8d728c7e, 0xf8db3118, 0x97979483, 0x67450af4,
+    0x0809af6f, 0x87e0371b, 0xe8ac9280, 0x187e0cf7, 0x7732a96c,
+    0x06ad3d1e, 0x69e19885, 0x993306f2, 0xf67fa369, 0x79963b1d,
+    0x16da9e86, 0xe60800f1, 0x8944a56a, 0x04362914, 0x6b7a8c8f,
+    0x9ba812f8, 0xf4e4b763, 0x7b0d2f17, 0x14418a8c, 0xe49314fb,
+    0x8bdfb160, 0xfa402512, 0x950c8089, 0x65de1efe, 0x0a92bb65,
+    0x857b2311, 0xea37868a, 0x1ae518fd, 0x75a9bd66, 0xf0b76330,
+    0x9ffbc6ab, 0x6f2958dc, 0x0065fd47, 0x8f8c6533, 0xe0c0c0a8,
+    0x10125edf, 0x7f5efb44, 0x0ec16f36, 0x618dcaad, 0x915f54da,
+    0xfe13f141, 0x71fa6935, 0x1eb6ccae, 0xee6452d9, 0x8128f742,
+    0x0c5a7b3c, 0x6316dea7, 0x93c440d0, 0xfc88e54b, 0x73617d3f,
+    0x1c2dd8a4, 0xecff46d3, 0x83b3e348, 0xf22c773a, 0x9d60d2a1,
+    0x6db24cd6, 0x02fee94d, 0x8d177139, 0xe25bd4a2, 0x12894ad5,
+    0x7dc5ef4e, 0x086c5228, 0x6720f7b3, 0x97f269c4, 0xf8becc5f,
+    0x7757542b, 0x181bf1b0, 0xe8c96fc7, 0x8785ca5c, 0xf61a5e2e,
+    0x9956fbb5, 0x698465c2, 0x06c8c059, 0x8921582d, 0xe66dfdb6,
+    0x16bf63c1, 0x79f3c65a, 0xf4814a24, 0x9bcdefbf, 0x6b1f71c8,
+    0x0453d453, 0x8bba4c27, 0xe4f6e9bc, 0x142477cb, 0x7b68d250,
+    0x0af74622, 0x65bbe3b9, 0x95697dce, 0xfa25d855, 0x75cc4021,
+    0x1a80e5ba, 0xea527bcd, 0x851ede56, 0xe06fc760, 0x8f2362fb,
+    0x7ff1fc8c, 0x10bd5917, 0x9f54c163, 0xf01864f8, 0x00cafa8f,
+    0x6f865f14, 0x1e19cb66, 0x71556efd, 0x8187f08a, 0xeecb5511,
+    0x6122cd65, 0x0e6e68fe, 0xfebcf689, 0x91f05312, 0x1c82df6c,
+    0x73ce7af7, 0x831ce480, 0xec50411b, 0x63b9d96f, 0x0cf57cf4,
+    0xfc27e283, 0x936b4718, 0xe2f4d36a, 0x8db876f1, 0x7d6ae886,
+    0x12264d1d, 0x9dcfd569, 0xf28370f2, 0x0251ee85, 0x6d1d4b1e,
+    0x18b4f678, 0x77f853e3, 0x872acd94, 0xe866680f, 0x678ff07b,
+    0x08c355e0, 0xf811cb97, 0x975d6e0c, 0xe6c2fa7e, 0x898e5fe5,
+    0x795cc192, 0x16106409, 0x99f9fc7d, 0xf6b559e6, 0x0667c791,
+    0x692b620a, 0xe459ee74, 0x8b154bef, 0x7bc7d598, 0x148b7003,
+    0x9b62e877, 0xf42e4dec, 0x04fcd39b, 0x6bb07600, 0x1a2fe272,
+    0x756347e9, 0x85b1d99e, 0xeafd7c05, 0x6514e471, 0x0a5841ea,
+    0xfa8adf9d, 0x95c67a06, 0x10d8a450, 0x7f9401cb, 0x8f469fbc,
+    0xe00a3a27, 0x6fe3a253, 0x00af07c8, 0xf07d99bf, 0x9f313c24,
+    0xeeaea856, 0x81e20dcd, 0x713093ba, 0x1e7c3621, 0x9195ae55,
+    0xfed90bce, 0x0e0b95b9, 0x61473022, 0xec35bc5c, 0x837919c7,
+    0x73ab87b0, 0x1ce7222b, 0x930eba5f, 0xfc421fc4, 0x0c9081b3,
+    0x63dc2428, 0x1243b05a, 0x7d0f15c1, 0x8ddd8bb6, 0xe2912e2d,
+    0x6d78b659, 0x023413c2, 0xf2e68db5, 0x9daa282e, 0xe8039548,
+    0x874f30d3, 0x779daea4, 0x18d10b3f, 0x9738934b, 0xf87436d0,
+    0x08a6a8a7, 0x67ea0d3c, 0x1675994e, 0x79393cd5, 0x89eba2a2,
+    0xe6a70739, 0x694e9f4d, 0x06023ad6, 0xf6d0a4a1, 0x999c013a,
+    0x14ee8d44, 0x7ba228df, 0x8b70b6a8, 0xe43c1333, 0x6bd58b47,
+    0x04992edc, 0xf44bb0ab, 0x9b071530, 0xea988142, 0x85d424d9,
+    0x7506baae, 0x1a4a1f35, 0x95a38741, 0xfaef22da, 0x0a3dbcad,
+    0x65711936}};
+
+#endif
+
+#endif
+
+#if N == 4
+
+#if W == 8
+
+local const z_crc_t FAR crc_braid_table[][256] = {
+   {0x00000000, 0xf1da05aa, 0x38c50d15, 0xc91f08bf, 0x718a1a2a,
+    0x80501f80, 0x494f173f, 0xb8951295, 0xe3143454, 0x12ce31fe,
+    0xdbd13941, 0x2a0b3ceb, 0x929e2e7e, 0x63442bd4, 0xaa5b236b,
+    0x5b8126c1, 0x1d596ee9, 0xec836b43, 0x259c63fc, 0xd4466656,
+    0x6cd374c3, 0x9d097169, 0x541679d6, 0xa5cc7c7c, 0xfe4d5abd,
+    0x0f975f17, 0xc68857a8, 0x37525202, 0x8fc74097, 0x7e1d453d,
+    0xb7024d82, 0x46d84828, 0x3ab2ddd2, 0xcb68d878, 0x0277d0c7,
+    0xf3add56d, 0x4b38c7f8, 0xbae2c252, 0x73fdcaed, 0x8227cf47,
+    0xd9a6e986, 0x287cec2c, 0xe163e493, 0x10b9e139, 0xa82cf3ac,
+    0x59f6f606, 0x90e9feb9, 0x6133fb13, 0x27ebb33b, 0xd631b691,
+    0x1f2ebe2e, 0xeef4bb84, 0x5661a911, 0xa7bbacbb, 0x6ea4a404,
+    0x9f7ea1ae, 0xc4ff876f, 0x352582c5, 0xfc3a8a7a, 0x0de08fd0,
+    0xb5759d45, 0x44af98ef, 0x8db09050, 0x7c6a95fa, 0x7565bba4,
+    0x84bfbe0e, 0x4da0b6b1, 0xbc7ab31b, 0x04efa18e, 0xf535a424,
+    0x3c2aac9b, 0xcdf0a931, 0x96718ff0, 0x67ab8a5a, 0xaeb482e5,
+    0x5f6e874f, 0xe7fb95da, 0x16219070, 0xdf3e98cf, 0x2ee49d65,
+    0x683cd54d, 0x99e6d0e7, 0x50f9d858, 0xa123ddf2, 0x19b6cf67,
+    0xe86ccacd, 0x2173c272, 0xd0a9c7d8, 0x8b28e119, 0x7af2e4b3,
+    0xb3edec0c, 0x4237e9a6, 0xfaa2fb33, 0x0b78fe99, 0xc267f626,
+    0x33bdf38c, 0x4fd76676, 0xbe0d63dc, 0x77126b63, 0x86c86ec9,
+    0x3e5d7c5c, 0xcf8779f6, 0x06987149, 0xf74274e3, 0xacc35222,
+    0x5d195788, 0x94065f37, 0x65dc5a9d, 0xdd494808, 0x2c934da2,
+    0xe58c451d, 0x145640b7, 0x528e089f, 0xa3540d35, 0x6a4b058a,
+    0x9b910020, 0x230412b5, 0xd2de171f, 0x1bc11fa0, 0xea1b1a0a,
+    0xb19a3ccb, 0x40403961, 0x895f31de, 0x78853474, 0xc01026e1,
+    0x31ca234b, 0xf8d52bf4, 0x090f2e5e, 0xeacb7748, 0x1b1172e2,
+    0xd20e7a5d, 0x23d47ff7, 0x9b416d62, 0x6a9b68c8, 0xa3846077,
+    0x525e65dd, 0x09df431c, 0xf80546b6, 0x311a4e09, 0xc0c04ba3,
+    0x78555936, 0x898f5c9c, 0x40905423, 0xb14a5189, 0xf79219a1,
+    0x06481c0b, 0xcf5714b4, 0x3e8d111e, 0x8618038b, 0x77c20621,
+    0xbedd0e9e, 0x4f070b34, 0x14862df5, 0xe55c285f, 0x2c4320e0,
+    0xdd99254a, 0x650c37df, 0x94d63275, 0x5dc93aca, 0xac133f60,
+    0xd079aa9a, 0x21a3af30, 0xe8bca78f, 0x1966a225, 0xa1f3b0b0,
+    0x5029b51a, 0x9936bda5, 0x68ecb80f, 0x336d9ece, 0xc2b79b64,
+    0x0ba893db, 0xfa729671, 0x42e784e4, 0xb33d814e, 0x7a2289f1,
+    0x8bf88c5b, 0xcd20c473, 0x3cfac1d9, 0xf5e5c966, 0x043fcccc,
+    0xbcaade59, 0x4d70dbf3, 0x846fd34c, 0x75b5d6e6, 0x2e34f027,
+    0xdfeef58d, 0x16f1fd32, 0xe72bf898, 0x5fbeea0d, 0xae64efa7,
+    0x677be718, 0x96a1e2b2, 0x9faeccec, 0x6e74c946, 0xa76bc1f9,
+    0x56b1c453, 0xee24d6c6, 0x1ffed36c, 0xd6e1dbd3, 0x273bde79,
+    0x7cbaf8b8, 0x8d60fd12, 0x447ff5ad, 0xb5a5f007, 0x0d30e292,
+    0xfceae738, 0x35f5ef87, 0xc42fea2d, 0x82f7a205, 0x732da7af,
+    0xba32af10, 0x4be8aaba, 0xf37db82f, 0x02a7bd85, 0xcbb8b53a,
+    0x3a62b090, 0x61e39651, 0x903993fb, 0x59269b44, 0xa8fc9eee,
+    0x10698c7b, 0xe1b389d1, 0x28ac816e, 0xd97684c4, 0xa51c113e,
+    0x54c61494, 0x9dd91c2b, 0x6c031981, 0xd4960b14, 0x254c0ebe,
+    0xec530601, 0x1d8903ab, 0x4608256a, 0xb7d220c0, 0x7ecd287f,
+    0x8f172dd5, 0x37823f40, 0xc6583aea, 0x0f473255, 0xfe9d37ff,
+    0xb8457fd7, 0x499f7a7d, 0x808072c2, 0x715a7768, 0xc9cf65fd,
+    0x38156057, 0xf10a68e8, 0x00d06d42, 0x5b514b83, 0xaa8b4e29,
+    0x63944696, 0x924e433c, 0x2adb51a9, 0xdb015403, 0x121e5cbc,
+    0xe3c45916},
+   {0x00000000, 0x0ee7e8d1, 0x1dcfd1a2, 0x13283973, 0x3b9fa344,
+    0x35784b95, 0x265072e6, 0x28b79a37, 0x773f4688, 0x79d8ae59,
+    0x6af0972a, 0x64177ffb, 0x4ca0e5cc, 0x42470d1d, 0x516f346e,
+    0x5f88dcbf, 0xee7e8d10, 0xe09965c1, 0xf3b15cb2, 0xfd56b463,
+    0xd5e12e54, 0xdb06c685, 0xc82efff6, 0xc6c91727, 0x9941cb98,
+    0x97a62349, 0x848e1a3a, 0x8a69f2eb, 0xa2de68dc, 0xac39800d,
+    0xbf11b97e, 0xb1f651af, 0x078c1c61, 0x096bf4b0, 0x1a43cdc3,
+    0x14a42512, 0x3c13bf25, 0x32f457f4, 0x21dc6e87, 0x2f3b8656,
+    0x70b35ae9, 0x7e54b238, 0x6d7c8b4b, 0x639b639a, 0x4b2cf9ad,
+    0x45cb117c, 0x56e3280f, 0x5804c0de, 0xe9f29171, 0xe71579a0,
+    0xf43d40d3, 0xfadaa802, 0xd26d3235, 0xdc8adae4, 0xcfa2e397,
+    0xc1450b46, 0x9ecdd7f9, 0x902a3f28, 0x8302065b, 0x8de5ee8a,
+    0xa55274bd, 0xabb59c6c, 0xb89da51f, 0xb67a4dce, 0x0f1838c2,
+    0x01ffd013, 0x12d7e960, 0x1c3001b1, 0x34879b86, 0x3a607357,
+    0x29484a24, 0x27afa2f5, 0x78277e4a, 0x76c0969b, 0x65e8afe8,
+    0x6b0f4739, 0x43b8dd0e, 0x4d5f35df, 0x5e770cac, 0x5090e47d,
+    0xe166b5d2, 0xef815d03, 0xfca96470, 0xf24e8ca1, 0xdaf91696,
+    0xd41efe47, 0xc736c734, 0xc9d12fe5, 0x9659f35a, 0x98be1b8b,
+    0x8b9622f8, 0x8571ca29, 0xadc6501e, 0xa321b8cf, 0xb00981bc,
+    0xbeee696d, 0x089424a3, 0x0673cc72, 0x155bf501, 0x1bbc1dd0,
+    0x330b87e7, 0x3dec6f36, 0x2ec45645, 0x2023be94, 0x7fab622b,
+    0x714c8afa, 0x6264b389, 0x6c835b58, 0x4434c16f, 0x4ad329be,
+    0x59fb10cd, 0x571cf81c, 0xe6eaa9b3, 0xe80d4162, 0xfb257811,
+    0xf5c290c0, 0xdd750af7, 0xd392e226, 0xc0badb55, 0xce5d3384,
+    0x91d5ef3b, 0x9f3207ea, 0x8c1a3e99, 0x82fdd648, 0xaa4a4c7f,
+    0xa4ada4ae, 0xb7859ddd, 0xb962750c, 0x1e307184, 0x10d79955,
+    0x03ffa026, 0x0d1848f7, 0x25afd2c0, 0x2b483a11, 0x38600362,
+    0x3687ebb3, 0x690f370c, 0x67e8dfdd, 0x74c0e6ae, 0x7a270e7f,
+    0x52909448, 0x5c777c99, 0x4f5f45ea, 0x41b8ad3b, 0xf04efc94,
+    0xfea91445, 0xed812d36, 0xe366c5e7, 0xcbd15fd0, 0xc536b701,
+    0xd61e8e72, 0xd8f966a3, 0x8771ba1c, 0x899652cd, 0x9abe6bbe,
+    0x9459836f, 0xbcee1958, 0xb209f189, 0xa121c8fa, 0xafc6202b,
+    0x19bc6de5, 0x175b8534, 0x0473bc47, 0x0a945496, 0x2223cea1,
+    0x2cc42670, 0x3fec1f03, 0x310bf7d2, 0x6e832b6d, 0x6064c3bc,
+    0x734cfacf, 0x7dab121e, 0x551c8829, 0x5bfb60f8, 0x48d3598b,
+    0x4634b15a, 0xf7c2e0f5, 0xf9250824, 0xea0d3157, 0xe4ead986,
+    0xcc5d43b1, 0xc2baab60, 0xd1929213, 0xdf757ac2, 0x80fda67d,
+    0x8e1a4eac, 0x9d3277df, 0x93d59f0e, 0xbb620539, 0xb585ede8,
+    0xa6add49b, 0xa84a3c4a, 0x11284946, 0x1fcfa197, 0x0ce798e4,
+    0x02007035, 0x2ab7ea02, 0x245002d3, 0x37783ba0, 0x399fd371,
+    0x66170fce, 0x68f0e71f, 0x7bd8de6c, 0x753f36bd, 0x5d88ac8a,
+    0x536f445b, 0x40477d28, 0x4ea095f9, 0xff56c456, 0xf1b12c87,
+    0xe29915f4, 0xec7efd25, 0xc4c96712, 0xca2e8fc3, 0xd906b6b0,
+    0xd7e15e61, 0x886982de, 0x868e6a0f, 0x95a6537c, 0x9b41bbad,
+    0xb3f6219a, 0xbd11c94b, 0xae39f038, 0xa0de18e9, 0x16a45527,
+    0x1843bdf6, 0x0b6b8485, 0x058c6c54, 0x2d3bf663, 0x23dc1eb2,
+    0x30f427c1, 0x3e13cf10, 0x619b13af, 0x6f7cfb7e, 0x7c54c20d,
+    0x72b32adc, 0x5a04b0eb, 0x54e3583a, 0x47cb6149, 0x492c8998,
+    0xf8dad837, 0xf63d30e6, 0xe5150995, 0xebf2e144, 0xc3457b73,
+    0xcda293a2, 0xde8aaad1, 0xd06d4200, 0x8fe59ebf, 0x8102766e,
+    0x922a4f1d, 0x9ccda7cc, 0xb47a3dfb, 0xba9dd52a, 0xa9b5ec59,
+    0xa7520488},
+   {0x00000000, 0x3c60e308, 0x78c1c610, 0x44a12518, 0xf1838c20,
+    0xcde36f28, 0x89424a30, 0xb522a938, 0x38761e01, 0x0416fd09,
+    0x40b7d811, 0x7cd73b19, 0xc9f59221, 0xf5957129, 0xb1345431,
+    0x8d54b739, 0x70ec3c02, 0x4c8cdf0a, 0x082dfa12, 0x344d191a,
+    0x816fb022, 0xbd0f532a, 0xf9ae7632, 0xc5ce953a, 0x489a2203,
+    0x74fac10b, 0x305be413, 0x0c3b071b, 0xb919ae23, 0x85794d2b,
+    0xc1d86833, 0xfdb88b3b, 0xe1d87804, 0xddb89b0c, 0x9919be14,
+    0xa5795d1c, 0x105bf424, 0x2c3b172c, 0x689a3234, 0x54fad13c,
+    0xd9ae6605, 0xe5ce850d, 0xa16fa015, 0x9d0f431d, 0x282dea25,
+    0x144d092d, 0x50ec2c35, 0x6c8ccf3d, 0x91344406, 0xad54a70e,
+    0xe9f58216, 0xd595611e, 0x60b7c826, 0x5cd72b2e, 0x18760e36,
+    0x2416ed3e, 0xa9425a07, 0x9522b90f, 0xd1839c17, 0xede37f1f,
+    0x58c1d627, 0x64a1352f, 0x20001037, 0x1c60f33f, 0x18c1f649,
+    0x24a11541, 0x60003059, 0x5c60d351, 0xe9427a69, 0xd5229961,
+    0x9183bc79, 0xade35f71, 0x20b7e848, 0x1cd70b40, 0x58762e58,
+    0x6416cd50, 0xd1346468, 0xed548760, 0xa9f5a278, 0x95954170,
+    0x682dca4b, 0x544d2943, 0x10ec0c5b, 0x2c8cef53, 0x99ae466b,
+    0xa5cea563, 0xe16f807b, 0xdd0f6373, 0x505bd44a, 0x6c3b3742,
+    0x289a125a, 0x14faf152, 0xa1d8586a, 0x9db8bb62, 0xd9199e7a,
+    0xe5797d72, 0xf9198e4d, 0xc5796d45, 0x81d8485d, 0xbdb8ab55,
+    0x089a026d, 0x34fae165, 0x705bc47d, 0x4c3b2775, 0xc16f904c,
+    0xfd0f7344, 0xb9ae565c, 0x85ceb554, 0x30ec1c6c, 0x0c8cff64,
+    0x482dda7c, 0x744d3974, 0x89f5b24f, 0xb5955147, 0xf134745f,
+    0xcd549757, 0x78763e6f, 0x4416dd67, 0x00b7f87f, 0x3cd71b77,
+    0xb183ac4e, 0x8de34f46, 0xc9426a5e, 0xf5228956, 0x4000206e,
+    0x7c60c366, 0x38c1e67e, 0x04a10576, 0x3183ec92, 0x0de30f9a,
+    0x49422a82, 0x7522c98a, 0xc00060b2, 0xfc6083ba, 0xb8c1a6a2,
+    0x84a145aa, 0x09f5f293, 0x3595119b, 0x71343483, 0x4d54d78b,
+    0xf8767eb3, 0xc4169dbb, 0x80b7b8a3, 0xbcd75bab, 0x416fd090,
+    0x7d0f3398, 0x39ae1680, 0x05cef588, 0xb0ec5cb0, 0x8c8cbfb8,
+    0xc82d9aa0, 0xf44d79a8, 0x7919ce91, 0x45792d99, 0x01d80881,
+    0x3db8eb89, 0x889a42b1, 0xb4faa1b9, 0xf05b84a1, 0xcc3b67a9,
+    0xd05b9496, 0xec3b779e, 0xa89a5286, 0x94fab18e, 0x21d818b6,
+    0x1db8fbbe, 0x5919dea6, 0x65793dae, 0xe82d8a97, 0xd44d699f,
+    0x90ec4c87, 0xac8caf8f, 0x19ae06b7, 0x25cee5bf, 0x616fc0a7,
+    0x5d0f23af, 0xa0b7a894, 0x9cd74b9c, 0xd8766e84, 0xe4168d8c,
+    0x513424b4, 0x6d54c7bc, 0x29f5e2a4, 0x159501ac, 0x98c1b695,
+    0xa4a1559d, 0xe0007085, 0xdc60938d, 0x69423ab5, 0x5522d9bd,
+    0x1183fca5, 0x2de31fad, 0x29421adb, 0x1522f9d3, 0x5183dccb,
+    0x6de33fc3, 0xd8c196fb, 0xe4a175f3, 0xa00050eb, 0x9c60b3e3,
+    0x113404da, 0x2d54e7d2, 0x69f5c2ca, 0x559521c2, 0xe0b788fa,
+    0xdcd76bf2, 0x98764eea, 0xa416ade2, 0x59ae26d9, 0x65cec5d1,
+    0x216fe0c9, 0x1d0f03c1, 0xa82daaf9, 0x944d49f1, 0xd0ec6ce9,
+    0xec8c8fe1, 0x61d838d8, 0x5db8dbd0, 0x1919fec8, 0x25791dc0,
+    0x905bb4f8, 0xac3b57f0, 0xe89a72e8, 0xd4fa91e0, 0xc89a62df,
+    0xf4fa81d7, 0xb05ba4cf, 0x8c3b47c7, 0x3919eeff, 0x05790df7,
+    0x41d828ef, 0x7db8cbe7, 0xf0ec7cde, 0xcc8c9fd6, 0x882dbace,
+    0xb44d59c6, 0x016ff0fe, 0x3d0f13f6, 0x79ae36ee, 0x45ced5e6,
+    0xb8765edd, 0x8416bdd5, 0xc0b798cd, 0xfcd77bc5, 0x49f5d2fd,
+    0x759531f5, 0x313414ed, 0x0d54f7e5, 0x800040dc, 0xbc60a3d4,
+    0xf8c186cc, 0xc4a165c4, 0x7183ccfc, 0x4de32ff4, 0x09420aec,
+    0x3522e9e4},
+   {0x00000000, 0x6307d924, 0xc60fb248, 0xa5086b6c, 0x576e62d1,
+    0x3469bbf5, 0x9161d099, 0xf26609bd, 0xaedcc5a2, 0xcddb1c86,
+    0x68d377ea, 0x0bd4aece, 0xf9b2a773, 0x9ab57e57, 0x3fbd153b,
+    0x5cbacc1f, 0x86c88d05, 0xe5cf5421, 0x40c73f4d, 0x23c0e669,
+    0xd1a6efd4, 0xb2a136f0, 0x17a95d9c, 0x74ae84b8, 0x281448a7,
+    0x4b139183, 0xee1bfaef, 0x8d1c23cb, 0x7f7a2a76, 0x1c7df352,
+    0xb975983e, 0xda72411a, 0xd6e01c4b, 0xb5e7c56f, 0x10efae03,
+    0x73e87727, 0x818e7e9a, 0xe289a7be, 0x4781ccd2, 0x248615f6,
+    0x783cd9e9, 0x1b3b00cd, 0xbe336ba1, 0xdd34b285, 0x2f52bb38,
+    0x4c55621c, 0xe95d0970, 0x8a5ad054, 0x5028914e, 0x332f486a,
+    0x96272306, 0xf520fa22, 0x0746f39f, 0x64412abb, 0xc14941d7,
+    0xa24e98f3, 0xfef454ec, 0x9df38dc8, 0x38fbe6a4, 0x5bfc3f80,
+    0xa99a363d, 0xca9def19, 0x6f958475, 0x0c925d51, 0x76b13ed7,
+    0x15b6e7f3, 0xb0be8c9f, 0xd3b955bb, 0x21df5c06, 0x42d88522,
+    0xe7d0ee4e, 0x84d7376a, 0xd86dfb75, 0xbb6a2251, 0x1e62493d,
+    0x7d659019, 0x8f0399a4, 0xec044080, 0x490c2bec, 0x2a0bf2c8,
+    0xf079b3d2, 0x937e6af6, 0x3676019a, 0x5571d8be, 0xa717d103,
+    0xc4100827, 0x6118634b, 0x021fba6f, 0x5ea57670, 0x3da2af54,
+    0x98aac438, 0xfbad1d1c, 0x09cb14a1, 0x6acccd85, 0xcfc4a6e9,
+    0xacc37fcd, 0xa051229c, 0xc356fbb8, 0x665e90d4, 0x055949f0,
+    0xf73f404d, 0x94389969, 0x3130f205, 0x52372b21, 0x0e8de73e,
+    0x6d8a3e1a, 0xc8825576, 0xab858c52, 0x59e385ef, 0x3ae45ccb,
+    0x9fec37a7, 0xfcebee83, 0x2699af99, 0x459e76bd, 0xe0961dd1,
+    0x8391c4f5, 0x71f7cd48, 0x12f0146c, 0xb7f87f00, 0xd4ffa624,
+    0x88456a3b, 0xeb42b31f, 0x4e4ad873, 0x2d4d0157, 0xdf2b08ea,
+    0xbc2cd1ce, 0x1924baa2, 0x7a236386, 0xed627dae, 0x8e65a48a,
+    0x2b6dcfe6, 0x486a16c2, 0xba0c1f7f, 0xd90bc65b, 0x7c03ad37,
+    0x1f047413, 0x43beb80c, 0x20b96128, 0x85b10a44, 0xe6b6d360,
+    0x14d0dadd, 0x77d703f9, 0xd2df6895, 0xb1d8b1b1, 0x6baaf0ab,
+    0x08ad298f, 0xada542e3, 0xcea29bc7, 0x3cc4927a, 0x5fc34b5e,
+    0xfacb2032, 0x99ccf916, 0xc5763509, 0xa671ec2d, 0x03798741,
+    0x607e5e65, 0x921857d8, 0xf11f8efc, 0x5417e590, 0x37103cb4,
+    0x3b8261e5, 0x5885b8c1, 0xfd8dd3ad, 0x9e8a0a89, 0x6cec0334,
+    0x0febda10, 0xaae3b17c, 0xc9e46858, 0x955ea447, 0xf6597d63,
+    0x5351160f, 0x3056cf2b, 0xc230c696, 0xa1371fb2, 0x043f74de,
+    0x6738adfa, 0xbd4aece0, 0xde4d35c4, 0x7b455ea8, 0x1842878c,
+    0xea248e31, 0x89235715, 0x2c2b3c79, 0x4f2ce55d, 0x13962942,
+    0x7091f066, 0xd5999b0a, 0xb69e422e, 0x44f84b93, 0x27ff92b7,
+    0x82f7f9db, 0xe1f020ff, 0x9bd34379, 0xf8d49a5d, 0x5ddcf131,
+    0x3edb2815, 0xccbd21a8, 0xafbaf88c, 0x0ab293e0, 0x69b54ac4,
+    0x350f86db, 0x56085fff, 0xf3003493, 0x9007edb7, 0x6261e40a,
+    0x01663d2e, 0xa46e5642, 0xc7698f66, 0x1d1bce7c, 0x7e1c1758,
+    0xdb147c34, 0xb813a510, 0x4a75acad, 0x29727589, 0x8c7a1ee5,
+    0xef7dc7c1, 0xb3c70bde, 0xd0c0d2fa, 0x75c8b996, 0x16cf60b2,
+    0xe4a9690f, 0x87aeb02b, 0x22a6db47, 0x41a10263, 0x4d335f32,
+    0x2e348616, 0x8b3ced7a, 0xe83b345e, 0x1a5d3de3, 0x795ae4c7,
+    0xdc528fab, 0xbf55568f, 0xe3ef9a90, 0x80e843b4, 0x25e028d8,
+    0x46e7f1fc, 0xb481f841, 0xd7862165, 0x728e4a09, 0x1189932d,
+    0xcbfbd237, 0xa8fc0b13, 0x0df4607f, 0x6ef3b95b, 0x9c95b0e6,
+    0xff9269c2, 0x5a9a02ae, 0x399ddb8a, 0x65271795, 0x0620ceb1,
+    0xa328a5dd, 0xc02f7cf9, 0x32497544, 0x514eac60, 0xf446c70c,
+    0x97411e28},
+   {0x00000000, 0x01b5fd1d, 0x036bfa3a, 0x02de0727, 0x06d7f474,
+    0x07620969, 0x05bc0e4e, 0x0409f353, 0x0dafe8e8, 0x0c1a15f5,
+    0x0ec412d2, 0x0f71efcf, 0x0b781c9c, 0x0acde181, 0x0813e6a6,
+    0x09a61bbb, 0x1b5fd1d0, 0x1aea2ccd, 0x18342bea, 0x1981d6f7,
+    0x1d8825a4, 0x1c3dd8b9, 0x1ee3df9e, 0x1f562283, 0x16f03938,
+    0x1745c425, 0x159bc302, 0x142e3e1f, 0x1027cd4c, 0x11923051,
+    0x134c3776, 0x12f9ca6b, 0x36bfa3a0, 0x370a5ebd, 0x35d4599a,
+    0x3461a487, 0x306857d4, 0x31ddaac9, 0x3303adee, 0x32b650f3,
+    0x3b104b48, 0x3aa5b655, 0x387bb172, 0x39ce4c6f, 0x3dc7bf3c,
+    0x3c724221, 0x3eac4506, 0x3f19b81b, 0x2de07270, 0x2c558f6d,
+    0x2e8b884a, 0x2f3e7557, 0x2b378604, 0x2a827b19, 0x285c7c3e,
+    0x29e98123, 0x204f9a98, 0x21fa6785, 0x232460a2, 0x22919dbf,
+    0x26986eec, 0x272d93f1, 0x25f394d6, 0x244669cb, 0x6d7f4740,
+    0x6ccaba5d, 0x6e14bd7a, 0x6fa14067, 0x6ba8b334, 0x6a1d4e29,
+    0x68c3490e, 0x6976b413, 0x60d0afa8, 0x616552b5, 0x63bb5592,
+    0x620ea88f, 0x66075bdc, 0x67b2a6c1, 0x656ca1e6, 0x64d95cfb,
+    0x76209690, 0x77956b8d, 0x754b6caa, 0x74fe91b7, 0x70f762e4,
+    0x71429ff9, 0x739c98de, 0x722965c3, 0x7b8f7e78, 0x7a3a8365,
+    0x78e48442, 0x7951795f, 0x7d588a0c, 0x7ced7711, 0x7e337036,
+    0x7f868d2b, 0x5bc0e4e0, 0x5a7519fd, 0x58ab1eda, 0x591ee3c7,
+    0x5d171094, 0x5ca2ed89, 0x5e7ceaae, 0x5fc917b3, 0x566f0c08,
+    0x57daf115, 0x5504f632, 0x54b10b2f, 0x50b8f87c, 0x510d0561,
+    0x53d30246, 0x5266ff5b, 0x409f3530, 0x412ac82d, 0x43f4cf0a,
+    0x42413217, 0x4648c144, 0x47fd3c59, 0x45233b7e, 0x4496c663,
+    0x4d30ddd8, 0x4c8520c5, 0x4e5b27e2, 0x4feedaff, 0x4be729ac,
+    0x4a52d4b1, 0x488cd396, 0x49392e8b, 0xdafe8e80, 0xdb4b739d,
+    0xd99574ba, 0xd82089a7, 0xdc297af4, 0xdd9c87e9, 0xdf4280ce,
+    0xdef77dd3, 0xd7516668, 0xd6e49b75, 0xd43a9c52, 0xd58f614f,
+    0xd186921c, 0xd0336f01, 0xd2ed6826, 0xd358953b, 0xc1a15f50,
+    0xc014a24d, 0xc2caa56a, 0xc37f5877, 0xc776ab24, 0xc6c35639,
+    0xc41d511e, 0xc5a8ac03, 0xcc0eb7b8, 0xcdbb4aa5, 0xcf654d82,
+    0xced0b09f, 0xcad943cc, 0xcb6cbed1, 0xc9b2b9f6, 0xc80744eb,
+    0xec412d20, 0xedf4d03d, 0xef2ad71a, 0xee9f2a07, 0xea96d954,
+    0xeb232449, 0xe9fd236e, 0xe848de73, 0xe1eec5c8, 0xe05b38d5,
+    0xe2853ff2, 0xe330c2ef, 0xe73931bc, 0xe68ccca1, 0xe452cb86,
+    0xe5e7369b, 0xf71efcf0, 0xf6ab01ed, 0xf47506ca, 0xf5c0fbd7,
+    0xf1c90884, 0xf07cf599, 0xf2a2f2be, 0xf3170fa3, 0xfab11418,
+    0xfb04e905, 0xf9daee22, 0xf86f133f, 0xfc66e06c, 0xfdd31d71,
+    0xff0d1a56, 0xfeb8e74b, 0xb781c9c0, 0xb63434dd, 0xb4ea33fa,
+    0xb55fcee7, 0xb1563db4, 0xb0e3c0a9, 0xb23dc78e, 0xb3883a93,
+    0xba2e2128, 0xbb9bdc35, 0xb945db12, 0xb8f0260f, 0xbcf9d55c,
+    0xbd4c2841, 0xbf922f66, 0xbe27d27b, 0xacde1810, 0xad6be50d,
+    0xafb5e22a, 0xae001f37, 0xaa09ec64, 0xabbc1179, 0xa962165e,
+    0xa8d7eb43, 0xa171f0f8, 0xa0c40de5, 0xa21a0ac2, 0xa3aff7df,
+    0xa7a6048c, 0xa613f991, 0xa4cdfeb6, 0xa57803ab, 0x813e6a60,
+    0x808b977d, 0x8255905a, 0x83e06d47, 0x87e99e14, 0x865c6309,
+    0x8482642e, 0x85379933, 0x8c918288, 0x8d247f95, 0x8ffa78b2,
+    0x8e4f85af, 0x8a4676fc, 0x8bf38be1, 0x892d8cc6, 0x889871db,
+    0x9a61bbb0, 0x9bd446ad, 0x990a418a, 0x98bfbc97, 0x9cb64fc4,
+    0x9d03b2d9, 0x9fddb5fe, 0x9e6848e3, 0x97ce5358, 0x967bae45,
+    0x94a5a962, 0x9510547f, 0x9119a72c, 0x90ac5a31, 0x92725d16,
+    0x93c7a00b},
+   {0x00000000, 0x6e8c1b41, 0xdd183682, 0xb3942dc3, 0x61416b45,
+    0x0fcd7004, 0xbc595dc7, 0xd2d54686, 0xc282d68a, 0xac0ecdcb,
+    0x1f9ae008, 0x7116fb49, 0xa3c3bdcf, 0xcd4fa68e, 0x7edb8b4d,
+    0x1057900c, 0x5e74ab55, 0x30f8b014, 0x836c9dd7, 0xede08696,
+    0x3f35c010, 0x51b9db51, 0xe22df692, 0x8ca1edd3, 0x9cf67ddf,
+    0xf27a669e, 0x41ee4b5d, 0x2f62501c, 0xfdb7169a, 0x933b0ddb,
+    0x20af2018, 0x4e233b59, 0xbce956aa, 0xd2654deb, 0x61f16028,
+    0x0f7d7b69, 0xdda83def, 0xb32426ae, 0x00b00b6d, 0x6e3c102c,
+    0x7e6b8020, 0x10e79b61, 0xa373b6a2, 0xcdffade3, 0x1f2aeb65,
+    0x71a6f024, 0xc232dde7, 0xacbec6a6, 0xe29dfdff, 0x8c11e6be,
+    0x3f85cb7d, 0x5109d03c, 0x83dc96ba, 0xed508dfb, 0x5ec4a038,
+    0x3048bb79, 0x201f2b75, 0x4e933034, 0xfd071df7, 0x938b06b6,
+    0x415e4030, 0x2fd25b71, 0x9c4676b2, 0xf2ca6df3, 0xa2a3ab15,
+    0xcc2fb054, 0x7fbb9d97, 0x113786d6, 0xc3e2c050, 0xad6edb11,
+    0x1efaf6d2, 0x7076ed93, 0x60217d9f, 0x0ead66de, 0xbd394b1d,
+    0xd3b5505c, 0x016016da, 0x6fec0d9b, 0xdc782058, 0xb2f43b19,
+    0xfcd70040, 0x925b1b01, 0x21cf36c2, 0x4f432d83, 0x9d966b05,
+    0xf31a7044, 0x408e5d87, 0x2e0246c6, 0x3e55d6ca, 0x50d9cd8b,
+    0xe34de048, 0x8dc1fb09, 0x5f14bd8f, 0x3198a6ce, 0x820c8b0d,
+    0xec80904c, 0x1e4afdbf, 0x70c6e6fe, 0xc352cb3d, 0xadded07c,
+    0x7f0b96fa, 0x11878dbb, 0xa213a078, 0xcc9fbb39, 0xdcc82b35,
+    0xb2443074, 0x01d01db7, 0x6f5c06f6, 0xbd894070, 0xd3055b31,
+    0x609176f2, 0x0e1d6db3, 0x403e56ea, 0x2eb24dab, 0x9d266068,
+    0xf3aa7b29, 0x217f3daf, 0x4ff326ee, 0xfc670b2d, 0x92eb106c,
+    0x82bc8060, 0xec309b21, 0x5fa4b6e2, 0x3128ada3, 0xe3fdeb25,
+    0x8d71f064, 0x3ee5dda7, 0x5069c6e6, 0x9e36506b, 0xf0ba4b2a,
+    0x432e66e9, 0x2da27da8, 0xff773b2e, 0x91fb206f, 0x226f0dac,
+    0x4ce316ed, 0x5cb486e1, 0x32389da0, 0x81acb063, 0xef20ab22,
+    0x3df5eda4, 0x5379f6e5, 0xe0eddb26, 0x8e61c067, 0xc042fb3e,
+    0xaecee07f, 0x1d5acdbc, 0x73d6d6fd, 0xa103907b, 0xcf8f8b3a,
+    0x7c1ba6f9, 0x1297bdb8, 0x02c02db4, 0x6c4c36f5, 0xdfd81b36,
+    0xb1540077, 0x638146f1, 0x0d0d5db0, 0xbe997073, 0xd0156b32,
+    0x22df06c1, 0x4c531d80, 0xffc73043, 0x914b2b02, 0x439e6d84,
+    0x2d1276c5, 0x9e865b06, 0xf00a4047, 0xe05dd04b, 0x8ed1cb0a,
+    0x3d45e6c9, 0x53c9fd88, 0x811cbb0e, 0xef90a04f, 0x5c048d8c,
+    0x328896cd, 0x7cabad94, 0x1227b6d5, 0xa1b39b16, 0xcf3f8057,
+    0x1deac6d1, 0x7366dd90, 0xc0f2f053, 0xae7eeb12, 0xbe297b1e,
+    0xd0a5605f, 0x63314d9c, 0x0dbd56dd, 0xdf68105b, 0xb1e40b1a,
+    0x027026d9, 0x6cfc3d98, 0x3c95fb7e, 0x5219e03f, 0xe18dcdfc,
+    0x8f01d6bd, 0x5dd4903b, 0x33588b7a, 0x80cca6b9, 0xee40bdf8,
+    0xfe172df4, 0x909b36b5, 0x230f1b76, 0x4d830037, 0x9f5646b1,
+    0xf1da5df0, 0x424e7033, 0x2cc26b72, 0x62e1502b, 0x0c6d4b6a,
+    0xbff966a9, 0xd1757de8, 0x03a03b6e, 0x6d2c202f, 0xdeb80dec,
+    0xb03416ad, 0xa06386a1, 0xceef9de0, 0x7d7bb023, 0x13f7ab62,
+    0xc122ede4, 0xafaef6a5, 0x1c3adb66, 0x72b6c027, 0x807cadd4,
+    0xeef0b695, 0x5d649b56, 0x33e88017, 0xe13dc691, 0x8fb1ddd0,
+    0x3c25f013, 0x52a9eb52, 0x42fe7b5e, 0x2c72601f, 0x9fe64ddc,
+    0xf16a569d, 0x23bf101b, 0x4d330b5a, 0xfea72699, 0x902b3dd8,
+    0xde080681, 0xb0841dc0, 0x03103003, 0x6d9c2b42, 0xbf496dc4,
+    0xd1c57685, 0x62515b46, 0x0cdd4007, 0x1c8ad00b, 0x7206cb4a,
+    0xc192e689, 0xaf1efdc8, 0x7dcbbb4e, 0x1347a00f, 0xa0d38dcc,
+    0xce5f968d},
+   {0x00000000, 0xe71da697, 0x154a4b6f, 0xf257edf8, 0x2a9496de,
+    0xcd893049, 0x3fdeddb1, 0xd8c37b26, 0x55292dbc, 0xb2348b2b,
+    0x406366d3, 0xa77ec044, 0x7fbdbb62, 0x98a01df5, 0x6af7f00d,
+    0x8dea569a, 0xaa525b78, 0x4d4ffdef, 0xbf181017, 0x5805b680,
+    0x80c6cda6, 0x67db6b31, 0x958c86c9, 0x7291205e, 0xff7b76c4,
+    0x1866d053, 0xea313dab, 0x0d2c9b3c, 0xd5efe01a, 0x32f2468d,
+    0xc0a5ab75, 0x27b80de2, 0x8fd5b0b1, 0x68c81626, 0x9a9ffbde,
+    0x7d825d49, 0xa541266f, 0x425c80f8, 0xb00b6d00, 0x5716cb97,
+    0xdafc9d0d, 0x3de13b9a, 0xcfb6d662, 0x28ab70f5, 0xf0680bd3,
+    0x1775ad44, 0xe52240bc, 0x023fe62b, 0x2587ebc9, 0xc29a4d5e,
+    0x30cda0a6, 0xd7d00631, 0x0f137d17, 0xe80edb80, 0x1a593678,
+    0xfd4490ef, 0x70aec675, 0x97b360e2, 0x65e48d1a, 0x82f92b8d,
+    0x5a3a50ab, 0xbd27f63c, 0x4f701bc4, 0xa86dbd53, 0xc4da6723,
+    0x23c7c1b4, 0xd1902c4c, 0x368d8adb, 0xee4ef1fd, 0x0953576a,
+    0xfb04ba92, 0x1c191c05, 0x91f34a9f, 0x76eeec08, 0x84b901f0,
+    0x63a4a767, 0xbb67dc41, 0x5c7a7ad6, 0xae2d972e, 0x493031b9,
+    0x6e883c5b, 0x89959acc, 0x7bc27734, 0x9cdfd1a3, 0x441caa85,
+    0xa3010c12, 0x5156e1ea, 0xb64b477d, 0x3ba111e7, 0xdcbcb770,
+    0x2eeb5a88, 0xc9f6fc1f, 0x11358739, 0xf62821ae, 0x047fcc56,
+    0xe3626ac1, 0x4b0fd792, 0xac127105, 0x5e459cfd, 0xb9583a6a,
+    0x619b414c, 0x8686e7db, 0x74d10a23, 0x93ccacb4, 0x1e26fa2e,
+    0xf93b5cb9, 0x0b6cb141, 0xec7117d6, 0x34b26cf0, 0xd3afca67,
+    0x21f8279f, 0xc6e58108, 0xe15d8cea, 0x06402a7d, 0xf417c785,
+    0x130a6112, 0xcbc91a34, 0x2cd4bca3, 0xde83515b, 0x399ef7cc,
+    0xb474a156, 0x536907c1, 0xa13eea39, 0x46234cae, 0x9ee03788,
+    0x79fd911f, 0x8baa7ce7, 0x6cb7da70, 0x52c5c807, 0xb5d86e90,
+    0x478f8368, 0xa09225ff, 0x78515ed9, 0x9f4cf84e, 0x6d1b15b6,
+    0x8a06b321, 0x07ece5bb, 0xe0f1432c, 0x12a6aed4, 0xf5bb0843,
+    0x2d787365, 0xca65d5f2, 0x3832380a, 0xdf2f9e9d, 0xf897937f,
+    0x1f8a35e8, 0xedddd810, 0x0ac07e87, 0xd20305a1, 0x351ea336,
+    0xc7494ece, 0x2054e859, 0xadbebec3, 0x4aa31854, 0xb8f4f5ac,
+    0x5fe9533b, 0x872a281d, 0x60378e8a, 0x92606372, 0x757dc5e5,
+    0xdd1078b6, 0x3a0dde21, 0xc85a33d9, 0x2f47954e, 0xf784ee68,
+    0x109948ff, 0xe2cea507, 0x05d30390, 0x8839550a, 0x6f24f39d,
+    0x9d731e65, 0x7a6eb8f2, 0xa2adc3d4, 0x45b06543, 0xb7e788bb,
+    0x50fa2e2c, 0x774223ce, 0x905f8559, 0x620868a1, 0x8515ce36,
+    0x5dd6b510, 0xbacb1387, 0x489cfe7f, 0xaf8158e8, 0x226b0e72,
+    0xc576a8e5, 0x3721451d, 0xd03ce38a, 0x08ff98ac, 0xefe23e3b,
+    0x1db5d3c3, 0xfaa87554, 0x961faf24, 0x710209b3, 0x8355e44b,
+    0x644842dc, 0xbc8b39fa, 0x5b969f6d, 0xa9c17295, 0x4edcd402,
+    0xc3368298, 0x242b240f, 0xd67cc9f7, 0x31616f60, 0xe9a21446,
+    0x0ebfb2d1, 0xfce85f29, 0x1bf5f9be, 0x3c4df45c, 0xdb5052cb,
+    0x2907bf33, 0xce1a19a4, 0x16d96282, 0xf1c4c415, 0x039329ed,
+    0xe48e8f7a, 0x6964d9e0, 0x8e797f77, 0x7c2e928f, 0x9b333418,
+    0x43f04f3e, 0xa4ede9a9, 0x56ba0451, 0xb1a7a2c6, 0x19ca1f95,
+    0xfed7b902, 0x0c8054fa, 0xeb9df26d, 0x335e894b, 0xd4432fdc,
+    0x2614c224, 0xc10964b3, 0x4ce33229, 0xabfe94be, 0x59a97946,
+    0xbeb4dfd1, 0x6677a4f7, 0x816a0260, 0x733def98, 0x9420490f,
+    0xb39844ed, 0x5485e27a, 0xa6d20f82, 0x41cfa915, 0x990cd233,
+    0x7e1174a4, 0x8c46995c, 0x6b5b3fcb, 0xe6b16951, 0x01accfc6,
+    0xf3fb223e, 0x14e684a9, 0xcc25ff8f, 0x2b385918, 0xd96fb4e0,
+    0x3e721277},
+   {0x00000000, 0xa58b900e, 0x9066265d, 0x35edb653, 0xfbbd4afb,
+    0x5e36daf5, 0x6bdb6ca6, 0xce50fca8, 0x2c0b93b7, 0x898003b9,
+    0xbc6db5ea, 0x19e625e4, 0xd7b6d94c, 0x723d4942, 0x47d0ff11,
+    0xe25b6f1f, 0x5817276e, 0xfd9cb760, 0xc8710133, 0x6dfa913d,
+    0xa3aa6d95, 0x0621fd9b, 0x33cc4bc8, 0x9647dbc6, 0x741cb4d9,
+    0xd19724d7, 0xe47a9284, 0x41f1028a, 0x8fa1fe22, 0x2a2a6e2c,
+    0x1fc7d87f, 0xba4c4871, 0xb02e4edc, 0x15a5ded2, 0x20486881,
+    0x85c3f88f, 0x4b930427, 0xee189429, 0xdbf5227a, 0x7e7eb274,
+    0x9c25dd6b, 0x39ae4d65, 0x0c43fb36, 0xa9c86b38, 0x67989790,
+    0xc213079e, 0xf7feb1cd, 0x527521c3, 0xe83969b2, 0x4db2f9bc,
+    0x785f4fef, 0xddd4dfe1, 0x13842349, 0xb60fb347, 0x83e20514,
+    0x2669951a, 0xc432fa05, 0x61b96a0b, 0x5454dc58, 0xf1df4c56,
+    0x3f8fb0fe, 0x9a0420f0, 0xafe996a3, 0x0a6206ad, 0xbb2d9bf9,
+    0x1ea60bf7, 0x2b4bbda4, 0x8ec02daa, 0x4090d102, 0xe51b410c,
+    0xd0f6f75f, 0x757d6751, 0x9726084e, 0x32ad9840, 0x07402e13,
+    0xa2cbbe1d, 0x6c9b42b5, 0xc910d2bb, 0xfcfd64e8, 0x5976f4e6,
+    0xe33abc97, 0x46b12c99, 0x735c9aca, 0xd6d70ac4, 0x1887f66c,
+    0xbd0c6662, 0x88e1d031, 0x2d6a403f, 0xcf312f20, 0x6ababf2e,
+    0x5f57097d, 0xfadc9973, 0x348c65db, 0x9107f5d5, 0xa4ea4386,
+    0x0161d388, 0x0b03d525, 0xae88452b, 0x9b65f378, 0x3eee6376,
+    0xf0be9fde, 0x55350fd0, 0x60d8b983, 0xc553298d, 0x27084692,
+    0x8283d69c, 0xb76e60cf, 0x12e5f0c1, 0xdcb50c69, 0x793e9c67,
+    0x4cd32a34, 0xe958ba3a, 0x5314f24b, 0xf69f6245, 0xc372d416,
+    0x66f94418, 0xa8a9b8b0, 0x0d2228be, 0x38cf9eed, 0x9d440ee3,
+    0x7f1f61fc, 0xda94f1f2, 0xef7947a1, 0x4af2d7af, 0x84a22b07,
+    0x2129bb09, 0x14c40d5a, 0xb14f9d54, 0xad2a31b3, 0x08a1a1bd,
+    0x3d4c17ee, 0x98c787e0, 0x56977b48, 0xf31ceb46, 0xc6f15d15,
+    0x637acd1b, 0x8121a204, 0x24aa320a, 0x11478459, 0xb4cc1457,
+    0x7a9ce8ff, 0xdf1778f1, 0xeafacea2, 0x4f715eac, 0xf53d16dd,
+    0x50b686d3, 0x655b3080, 0xc0d0a08e, 0x0e805c26, 0xab0bcc28,
+    0x9ee67a7b, 0x3b6dea75, 0xd936856a, 0x7cbd1564, 0x4950a337,
+    0xecdb3339, 0x228bcf91, 0x87005f9f, 0xb2ede9cc, 0x176679c2,
+    0x1d047f6f, 0xb88fef61, 0x8d625932, 0x28e9c93c, 0xe6b93594,
+    0x4332a59a, 0x76df13c9, 0xd35483c7, 0x310fecd8, 0x94847cd6,
+    0xa169ca85, 0x04e25a8b, 0xcab2a623, 0x6f39362d, 0x5ad4807e,
+    0xff5f1070, 0x45135801, 0xe098c80f, 0xd5757e5c, 0x70feee52,
+    0xbeae12fa, 0x1b2582f4, 0x2ec834a7, 0x8b43a4a9, 0x6918cbb6,
+    0xcc935bb8, 0xf97eedeb, 0x5cf57de5, 0x92a5814d, 0x372e1143,
+    0x02c3a710, 0xa748371e, 0x1607aa4a, 0xb38c3a44, 0x86618c17,
+    0x23ea1c19, 0xedbae0b1, 0x483170bf, 0x7ddcc6ec, 0xd85756e2,
+    0x3a0c39fd, 0x9f87a9f3, 0xaa6a1fa0, 0x0fe18fae, 0xc1b17306,
+    0x643ae308, 0x51d7555b, 0xf45cc555, 0x4e108d24, 0xeb9b1d2a,
+    0xde76ab79, 0x7bfd3b77, 0xb5adc7df, 0x102657d1, 0x25cbe182,
+    0x8040718c, 0x621b1e93, 0xc7908e9d, 0xf27d38ce, 0x57f6a8c0,
+    0x99a65468, 0x3c2dc466, 0x09c07235, 0xac4be23b, 0xa629e496,
+    0x03a27498, 0x364fc2cb, 0x93c452c5, 0x5d94ae6d, 0xf81f3e63,
+    0xcdf28830, 0x6879183e, 0x8a227721, 0x2fa9e72f, 0x1a44517c,
+    0xbfcfc172, 0x719f3dda, 0xd414add4, 0xe1f91b87, 0x44728b89,
+    0xfe3ec3f8, 0x5bb553f6, 0x6e58e5a5, 0xcbd375ab, 0x05838903,
+    0xa008190d, 0x95e5af5e, 0x306e3f50, 0xd235504f, 0x77bec041,
+    0x42537612, 0xe7d8e61c, 0x29881ab4, 0x8c038aba, 0xb9ee3ce9,
+    0x1c65ace7}};
+
+local const z_word_t FAR crc_braid_big_table[][256] = {
+   {0x0000000000000000, 0x0e908ba500000000, 0x5d26669000000000,
+    0x53b6ed3500000000, 0xfb4abdfb00000000, 0xf5da365e00000000,
+    0xa66cdb6b00000000, 0xa8fc50ce00000000, 0xb7930b2c00000000,
+    0xb903808900000000, 0xeab56dbc00000000, 0xe425e61900000000,
+    0x4cd9b6d700000000, 0x42493d7200000000, 0x11ffd04700000000,
+    0x1f6f5be200000000, 0x6e27175800000000, 0x60b79cfd00000000,
+    0x330171c800000000, 0x3d91fa6d00000000, 0x956daaa300000000,
+    0x9bfd210600000000, 0xc84bcc3300000000, 0xc6db479600000000,
+    0xd9b41c7400000000, 0xd72497d100000000, 0x84927ae400000000,
+    0x8a02f14100000000, 0x22fea18f00000000, 0x2c6e2a2a00000000,
+    0x7fd8c71f00000000, 0x71484cba00000000, 0xdc4e2eb000000000,
+    0xd2dea51500000000, 0x8168482000000000, 0x8ff8c38500000000,
+    0x2704934b00000000, 0x299418ee00000000, 0x7a22f5db00000000,
+    0x74b27e7e00000000, 0x6bdd259c00000000, 0x654dae3900000000,
+    0x36fb430c00000000, 0x386bc8a900000000, 0x9097986700000000,
+    0x9e0713c200000000, 0xcdb1fef700000000, 0xc321755200000000,
+    0xb26939e800000000, 0xbcf9b24d00000000, 0xef4f5f7800000000,
+    0xe1dfd4dd00000000, 0x4923841300000000, 0x47b30fb600000000,
+    0x1405e28300000000, 0x1a95692600000000, 0x05fa32c400000000,
+    0x0b6ab96100000000, 0x58dc545400000000, 0x564cdff100000000,
+    0xfeb08f3f00000000, 0xf020049a00000000, 0xa396e9af00000000,
+    0xad06620a00000000, 0xf99b2dbb00000000, 0xf70ba61e00000000,
+    0xa4bd4b2b00000000, 0xaa2dc08e00000000, 0x02d1904000000000,
+    0x0c411be500000000, 0x5ff7f6d000000000, 0x51677d7500000000,
+    0x4e08269700000000, 0x4098ad3200000000, 0x132e400700000000,
+    0x1dbecba200000000, 0xb5429b6c00000000, 0xbbd210c900000000,
+    0xe864fdfc00000000, 0xe6f4765900000000, 0x97bc3ae300000000,
+    0x992cb14600000000, 0xca9a5c7300000000, 0xc40ad7d600000000,
+    0x6cf6871800000000, 0x62660cbd00000000, 0x31d0e18800000000,
+    0x3f406a2d00000000, 0x202f31cf00000000, 0x2ebfba6a00000000,
+    0x7d09575f00000000, 0x7399dcfa00000000, 0xdb658c3400000000,
+    0xd5f5079100000000, 0x8643eaa400000000, 0x88d3610100000000,
+    0x25d5030b00000000, 0x2b4588ae00000000, 0x78f3659b00000000,
+    0x7663ee3e00000000, 0xde9fbef000000000, 0xd00f355500000000,
+    0x83b9d86000000000, 0x8d2953c500000000, 0x9246082700000000,
+    0x9cd6838200000000, 0xcf606eb700000000, 0xc1f0e51200000000,
+    0x690cb5dc00000000, 0x679c3e7900000000, 0x342ad34c00000000,
+    0x3aba58e900000000, 0x4bf2145300000000, 0x45629ff600000000,
+    0x16d472c300000000, 0x1844f96600000000, 0xb0b8a9a800000000,
+    0xbe28220d00000000, 0xed9ecf3800000000, 0xe30e449d00000000,
+    0xfc611f7f00000000, 0xf2f194da00000000, 0xa14779ef00000000,
+    0xafd7f24a00000000, 0x072ba28400000000, 0x09bb292100000000,
+    0x5a0dc41400000000, 0x549d4fb100000000, 0xb3312aad00000000,
+    0xbda1a10800000000, 0xee174c3d00000000, 0xe087c79800000000,
+    0x487b975600000000, 0x46eb1cf300000000, 0x155df1c600000000,
+    0x1bcd7a6300000000, 0x04a2218100000000, 0x0a32aa2400000000,
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+    0xb41a882900000000, 0xba8a038c00000000, 0xe93ceeb900000000,
+    0xe7ac651c00000000},
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+    0x8fff25cc00000000, 0x1859382b00000000, 0xe0b46fd900000000,
+    0x7712723e00000000},
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+   {0x0000000000000000, 0x1dfdb50100000000, 0x3afa6b0300000000,
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+    0x3570000200000000, 0x02eab72a00000000, 0xd302502400000000,
+    0xa03b783700000000, 0x71d39f3900000000, 0xce0f176600000000,
+    0x1fe7f06800000000, 0x6cded87b00000000, 0xbd363f7500000000,
+    0x8aac885d00000000, 0x5b446f5300000000, 0x287d474000000000,
+    0xf995a04e00000000, 0x56c456ff00000000, 0x872cb1f100000000,
+    0xf41599e200000000, 0x25fd7eec00000000, 0x1267c9c400000000,
+    0xc38f2eca00000000, 0xb0b606d900000000, 0x615ee1d700000000,
+    0xde82698800000000, 0x0f6a8e8600000000, 0x7c53a69500000000,
+    0xadbb419b00000000, 0x9a21f6b300000000, 0x4bc911bd00000000,
+    0x38f039ae00000000, 0xe918dea000000000, 0x2755a41600000000,
+    0xf6bd431800000000, 0x85846b0b00000000, 0x546c8c0500000000,
+    0x63f63b2d00000000, 0xb21edc2300000000, 0xc127f43000000000,
+    0x10cf133e00000000, 0xaf139b6100000000, 0x7efb7c6f00000000,
+    0x0dc2547c00000000, 0xdc2ab37200000000, 0xebb0045a00000000,
+    0x3a58e35400000000, 0x4961cb4700000000, 0x98892c4900000000,
+    0x37d8daf800000000, 0xe6303df600000000, 0x950915e500000000,
+    0x44e1f2eb00000000, 0x737b45c300000000, 0xa293a2cd00000000,
+    0xd1aa8ade00000000, 0x00426dd000000000, 0xbf9ee58f00000000,
+    0x6e76028100000000, 0x1d4f2a9200000000, 0xcca7cd9c00000000,
+    0xfb3d7ab400000000, 0x2ad59dba00000000, 0x59ecb5a900000000,
+    0x880452a700000000},
+   {0x0000000000000000, 0xaa05daf100000000, 0x150dc53800000000,
+    0xbf081fc900000000, 0x2a1a8a7100000000, 0x801f508000000000,
+    0x3f174f4900000000, 0x951295b800000000, 0x543414e300000000,
+    0xfe31ce1200000000, 0x4139d1db00000000, 0xeb3c0b2a00000000,
+    0x7e2e9e9200000000, 0xd42b446300000000, 0x6b235baa00000000,
+    0xc126815b00000000, 0xe96e591d00000000, 0x436b83ec00000000,
+    0xfc639c2500000000, 0x566646d400000000, 0xc374d36c00000000,
+    0x6971099d00000000, 0xd679165400000000, 0x7c7ccca500000000,
+    0xbd5a4dfe00000000, 0x175f970f00000000, 0xa85788c600000000,
+    0x0252523700000000, 0x9740c78f00000000, 0x3d451d7e00000000,
+    0x824d02b700000000, 0x2848d84600000000, 0xd2ddb23a00000000,
+    0x78d868cb00000000, 0xc7d0770200000000, 0x6dd5adf300000000,
+    0xf8c7384b00000000, 0x52c2e2ba00000000, 0xedcafd7300000000,
+    0x47cf278200000000, 0x86e9a6d900000000, 0x2cec7c2800000000,
+    0x93e463e100000000, 0x39e1b91000000000, 0xacf32ca800000000,
+    0x06f6f65900000000, 0xb9fee99000000000, 0x13fb336100000000,
+    0x3bb3eb2700000000, 0x91b631d600000000, 0x2ebe2e1f00000000,
+    0x84bbf4ee00000000, 0x11a9615600000000, 0xbbacbba700000000,
+    0x04a4a46e00000000, 0xaea17e9f00000000, 0x6f87ffc400000000,
+    0xc582253500000000, 0x7a8a3afc00000000, 0xd08fe00d00000000,
+    0x459d75b500000000, 0xef98af4400000000, 0x5090b08d00000000,
+    0xfa956a7c00000000, 0xa4bb657500000000, 0x0ebebf8400000000,
+    0xb1b6a04d00000000, 0x1bb37abc00000000, 0x8ea1ef0400000000,
+    0x24a435f500000000, 0x9bac2a3c00000000, 0x31a9f0cd00000000,
+    0xf08f719600000000, 0x5a8aab6700000000, 0xe582b4ae00000000,
+    0x4f876e5f00000000, 0xda95fbe700000000, 0x7090211600000000,
+    0xcf983edf00000000, 0x659de42e00000000, 0x4dd53c6800000000,
+    0xe7d0e69900000000, 0x58d8f95000000000, 0xf2dd23a100000000,
+    0x67cfb61900000000, 0xcdca6ce800000000, 0x72c2732100000000,
+    0xd8c7a9d000000000, 0x19e1288b00000000, 0xb3e4f27a00000000,
+    0x0cecedb300000000, 0xa6e9374200000000, 0x33fba2fa00000000,
+    0x99fe780b00000000, 0x26f667c200000000, 0x8cf3bd3300000000,
+    0x7666d74f00000000, 0xdc630dbe00000000, 0x636b127700000000,
+    0xc96ec88600000000, 0x5c7c5d3e00000000, 0xf67987cf00000000,
+    0x4971980600000000, 0xe37442f700000000, 0x2252c3ac00000000,
+    0x8857195d00000000, 0x375f069400000000, 0x9d5adc6500000000,
+    0x084849dd00000000, 0xa24d932c00000000, 0x1d458ce500000000,
+    0xb740561400000000, 0x9f088e5200000000, 0x350d54a300000000,
+    0x8a054b6a00000000, 0x2000919b00000000, 0xb512042300000000,
+    0x1f17ded200000000, 0xa01fc11b00000000, 0x0a1a1bea00000000,
+    0xcb3c9ab100000000, 0x6139404000000000, 0xde315f8900000000,
+    0x7434857800000000, 0xe12610c000000000, 0x4b23ca3100000000,
+    0xf42bd5f800000000, 0x5e2e0f0900000000, 0x4877cbea00000000,
+    0xe272111b00000000, 0x5d7a0ed200000000, 0xf77fd42300000000,
+    0x626d419b00000000, 0xc8689b6a00000000, 0x776084a300000000,
+    0xdd655e5200000000, 0x1c43df0900000000, 0xb64605f800000000,
+    0x094e1a3100000000, 0xa34bc0c000000000, 0x3659557800000000,
+    0x9c5c8f8900000000, 0x2354904000000000, 0x89514ab100000000,
+    0xa11992f700000000, 0x0b1c480600000000, 0xb41457cf00000000,
+    0x1e118d3e00000000, 0x8b03188600000000, 0x2106c27700000000,
+    0x9e0eddbe00000000, 0x340b074f00000000, 0xf52d861400000000,
+    0x5f285ce500000000, 0xe020432c00000000, 0x4a2599dd00000000,
+    0xdf370c6500000000, 0x7532d69400000000, 0xca3ac95d00000000,
+    0x603f13ac00000000, 0x9aaa79d000000000, 0x30afa32100000000,
+    0x8fa7bce800000000, 0x25a2661900000000, 0xb0b0f3a100000000,
+    0x1ab5295000000000, 0xa5bd369900000000, 0x0fb8ec6800000000,
+    0xce9e6d3300000000, 0x649bb7c200000000, 0xdb93a80b00000000,
+    0x719672fa00000000, 0xe484e74200000000, 0x4e813db300000000,
+    0xf189227a00000000, 0x5b8cf88b00000000, 0x73c420cd00000000,
+    0xd9c1fa3c00000000, 0x66c9e5f500000000, 0xcccc3f0400000000,
+    0x59deaabc00000000, 0xf3db704d00000000, 0x4cd36f8400000000,
+    0xe6d6b57500000000, 0x27f0342e00000000, 0x8df5eedf00000000,
+    0x32fdf11600000000, 0x98f82be700000000, 0x0deabe5f00000000,
+    0xa7ef64ae00000000, 0x18e77b6700000000, 0xb2e2a19600000000,
+    0xecccae9f00000000, 0x46c9746e00000000, 0xf9c16ba700000000,
+    0x53c4b15600000000, 0xc6d624ee00000000, 0x6cd3fe1f00000000,
+    0xd3dbe1d600000000, 0x79de3b2700000000, 0xb8f8ba7c00000000,
+    0x12fd608d00000000, 0xadf57f4400000000, 0x07f0a5b500000000,
+    0x92e2300d00000000, 0x38e7eafc00000000, 0x87eff53500000000,
+    0x2dea2fc400000000, 0x05a2f78200000000, 0xafa72d7300000000,
+    0x10af32ba00000000, 0xbaaae84b00000000, 0x2fb87df300000000,
+    0x85bda70200000000, 0x3ab5b8cb00000000, 0x90b0623a00000000,
+    0x5196e36100000000, 0xfb93399000000000, 0x449b265900000000,
+    0xee9efca800000000, 0x7b8c691000000000, 0xd189b3e100000000,
+    0x6e81ac2800000000, 0xc48476d900000000, 0x3e111ca500000000,
+    0x9414c65400000000, 0x2b1cd99d00000000, 0x8119036c00000000,
+    0x140b96d400000000, 0xbe0e4c2500000000, 0x010653ec00000000,
+    0xab03891d00000000, 0x6a25084600000000, 0xc020d2b700000000,
+    0x7f28cd7e00000000, 0xd52d178f00000000, 0x403f823700000000,
+    0xea3a58c600000000, 0x5532470f00000000, 0xff379dfe00000000,
+    0xd77f45b800000000, 0x7d7a9f4900000000, 0xc272808000000000,
+    0x68775a7100000000, 0xfd65cfc900000000, 0x5760153800000000,
+    0xe8680af100000000, 0x426dd00000000000, 0x834b515b00000000,
+    0x294e8baa00000000, 0x9646946300000000, 0x3c434e9200000000,
+    0xa951db2a00000000, 0x035401db00000000, 0xbc5c1e1200000000,
+    0x1659c4e300000000}};
+
+#else /* W == 4 */
+
+local const z_crc_t FAR crc_braid_table[][256] = {
+   {0x00000000, 0xae689191, 0x87a02563, 0x29c8b4f2, 0xd4314c87,
+    0x7a59dd16, 0x539169e4, 0xfdf9f875, 0x73139f4f, 0xdd7b0ede,
+    0xf4b3ba2c, 0x5adb2bbd, 0xa722d3c8, 0x094a4259, 0x2082f6ab,
+    0x8eea673a, 0xe6273e9e, 0x484faf0f, 0x61871bfd, 0xcfef8a6c,
+    0x32167219, 0x9c7ee388, 0xb5b6577a, 0x1bdec6eb, 0x9534a1d1,
+    0x3b5c3040, 0x129484b2, 0xbcfc1523, 0x4105ed56, 0xef6d7cc7,
+    0xc6a5c835, 0x68cd59a4, 0x173f7b7d, 0xb957eaec, 0x909f5e1e,
+    0x3ef7cf8f, 0xc30e37fa, 0x6d66a66b, 0x44ae1299, 0xeac68308,
+    0x642ce432, 0xca4475a3, 0xe38cc151, 0x4de450c0, 0xb01da8b5,
+    0x1e753924, 0x37bd8dd6, 0x99d51c47, 0xf11845e3, 0x5f70d472,
+    0x76b86080, 0xd8d0f111, 0x25290964, 0x8b4198f5, 0xa2892c07,
+    0x0ce1bd96, 0x820bdaac, 0x2c634b3d, 0x05abffcf, 0xabc36e5e,
+    0x563a962b, 0xf85207ba, 0xd19ab348, 0x7ff222d9, 0x2e7ef6fa,
+    0x8016676b, 0xa9ded399, 0x07b64208, 0xfa4fba7d, 0x54272bec,
+    0x7def9f1e, 0xd3870e8f, 0x5d6d69b5, 0xf305f824, 0xdacd4cd6,
+    0x74a5dd47, 0x895c2532, 0x2734b4a3, 0x0efc0051, 0xa09491c0,
+    0xc859c864, 0x663159f5, 0x4ff9ed07, 0xe1917c96, 0x1c6884e3,
+    0xb2001572, 0x9bc8a180, 0x35a03011, 0xbb4a572b, 0x1522c6ba,
+    0x3cea7248, 0x9282e3d9, 0x6f7b1bac, 0xc1138a3d, 0xe8db3ecf,
+    0x46b3af5e, 0x39418d87, 0x97291c16, 0xbee1a8e4, 0x10893975,
+    0xed70c100, 0x43185091, 0x6ad0e463, 0xc4b875f2, 0x4a5212c8,
+    0xe43a8359, 0xcdf237ab, 0x639aa63a, 0x9e635e4f, 0x300bcfde,
+    0x19c37b2c, 0xb7abeabd, 0xdf66b319, 0x710e2288, 0x58c6967a,
+    0xf6ae07eb, 0x0b57ff9e, 0xa53f6e0f, 0x8cf7dafd, 0x229f4b6c,
+    0xac752c56, 0x021dbdc7, 0x2bd50935, 0x85bd98a4, 0x784460d1,
+    0xd62cf140, 0xffe445b2, 0x518cd423, 0x5cfdedf4, 0xf2957c65,
+    0xdb5dc897, 0x75355906, 0x88cca173, 0x26a430e2, 0x0f6c8410,
+    0xa1041581, 0x2fee72bb, 0x8186e32a, 0xa84e57d8, 0x0626c649,
+    0xfbdf3e3c, 0x55b7afad, 0x7c7f1b5f, 0xd2178ace, 0xbadad36a,
+    0x14b242fb, 0x3d7af609, 0x93126798, 0x6eeb9fed, 0xc0830e7c,
+    0xe94bba8e, 0x47232b1f, 0xc9c94c25, 0x67a1ddb4, 0x4e696946,
+    0xe001f8d7, 0x1df800a2, 0xb3909133, 0x9a5825c1, 0x3430b450,
+    0x4bc29689, 0xe5aa0718, 0xcc62b3ea, 0x620a227b, 0x9ff3da0e,
+    0x319b4b9f, 0x1853ff6d, 0xb63b6efc, 0x38d109c6, 0x96b99857,
+    0xbf712ca5, 0x1119bd34, 0xece04541, 0x4288d4d0, 0x6b406022,
+    0xc528f1b3, 0xade5a817, 0x038d3986, 0x2a458d74, 0x842d1ce5,
+    0x79d4e490, 0xd7bc7501, 0xfe74c1f3, 0x501c5062, 0xdef63758,
+    0x709ea6c9, 0x5956123b, 0xf73e83aa, 0x0ac77bdf, 0xa4afea4e,
+    0x8d675ebc, 0x230fcf2d, 0x72831b0e, 0xdceb8a9f, 0xf5233e6d,
+    0x5b4baffc, 0xa6b25789, 0x08dac618, 0x211272ea, 0x8f7ae37b,
+    0x01908441, 0xaff815d0, 0x8630a122, 0x285830b3, 0xd5a1c8c6,
+    0x7bc95957, 0x5201eda5, 0xfc697c34, 0x94a42590, 0x3accb401,
+    0x130400f3, 0xbd6c9162, 0x40956917, 0xeefdf886, 0xc7354c74,
+    0x695ddde5, 0xe7b7badf, 0x49df2b4e, 0x60179fbc, 0xce7f0e2d,
+    0x3386f658, 0x9dee67c9, 0xb426d33b, 0x1a4e42aa, 0x65bc6073,
+    0xcbd4f1e2, 0xe21c4510, 0x4c74d481, 0xb18d2cf4, 0x1fe5bd65,
+    0x362d0997, 0x98459806, 0x16afff3c, 0xb8c76ead, 0x910fda5f,
+    0x3f674bce, 0xc29eb3bb, 0x6cf6222a, 0x453e96d8, 0xeb560749,
+    0x839b5eed, 0x2df3cf7c, 0x043b7b8e, 0xaa53ea1f, 0x57aa126a,
+    0xf9c283fb, 0xd00a3709, 0x7e62a698, 0xf088c1a2, 0x5ee05033,
+    0x7728e4c1, 0xd9407550, 0x24b98d25, 0x8ad11cb4, 0xa319a846,
+    0x0d7139d7},
+   {0x00000000, 0xb9fbdbe8, 0xa886b191, 0x117d6a79, 0x8a7c6563,
+    0x3387be8b, 0x22fad4f2, 0x9b010f1a, 0xcf89cc87, 0x7672176f,
+    0x670f7d16, 0xdef4a6fe, 0x45f5a9e4, 0xfc0e720c, 0xed731875,
+    0x5488c39d, 0x44629f4f, 0xfd9944a7, 0xece42ede, 0x551ff536,
+    0xce1efa2c, 0x77e521c4, 0x66984bbd, 0xdf639055, 0x8beb53c8,
+    0x32108820, 0x236de259, 0x9a9639b1, 0x019736ab, 0xb86ced43,
+    0xa911873a, 0x10ea5cd2, 0x88c53e9e, 0x313ee576, 0x20438f0f,
+    0x99b854e7, 0x02b95bfd, 0xbb428015, 0xaa3fea6c, 0x13c43184,
+    0x474cf219, 0xfeb729f1, 0xefca4388, 0x56319860, 0xcd30977a,
+    0x74cb4c92, 0x65b626eb, 0xdc4dfd03, 0xcca7a1d1, 0x755c7a39,
+    0x64211040, 0xdddacba8, 0x46dbc4b2, 0xff201f5a, 0xee5d7523,
+    0x57a6aecb, 0x032e6d56, 0xbad5b6be, 0xaba8dcc7, 0x1253072f,
+    0x89520835, 0x30a9d3dd, 0x21d4b9a4, 0x982f624c, 0xcafb7b7d,
+    0x7300a095, 0x627dcaec, 0xdb861104, 0x40871e1e, 0xf97cc5f6,
+    0xe801af8f, 0x51fa7467, 0x0572b7fa, 0xbc896c12, 0xadf4066b,
+    0x140fdd83, 0x8f0ed299, 0x36f50971, 0x27886308, 0x9e73b8e0,
+    0x8e99e432, 0x37623fda, 0x261f55a3, 0x9fe48e4b, 0x04e58151,
+    0xbd1e5ab9, 0xac6330c0, 0x1598eb28, 0x411028b5, 0xf8ebf35d,
+    0xe9969924, 0x506d42cc, 0xcb6c4dd6, 0x7297963e, 0x63eafc47,
+    0xda1127af, 0x423e45e3, 0xfbc59e0b, 0xeab8f472, 0x53432f9a,
+    0xc8422080, 0x71b9fb68, 0x60c49111, 0xd93f4af9, 0x8db78964,
+    0x344c528c, 0x253138f5, 0x9ccae31d, 0x07cbec07, 0xbe3037ef,
+    0xaf4d5d96, 0x16b6867e, 0x065cdaac, 0xbfa70144, 0xaeda6b3d,
+    0x1721b0d5, 0x8c20bfcf, 0x35db6427, 0x24a60e5e, 0x9d5dd5b6,
+    0xc9d5162b, 0x702ecdc3, 0x6153a7ba, 0xd8a87c52, 0x43a97348,
+    0xfa52a8a0, 0xeb2fc2d9, 0x52d41931, 0x4e87f0bb, 0xf77c2b53,
+    0xe601412a, 0x5ffa9ac2, 0xc4fb95d8, 0x7d004e30, 0x6c7d2449,
+    0xd586ffa1, 0x810e3c3c, 0x38f5e7d4, 0x29888dad, 0x90735645,
+    0x0b72595f, 0xb28982b7, 0xa3f4e8ce, 0x1a0f3326, 0x0ae56ff4,
+    0xb31eb41c, 0xa263de65, 0x1b98058d, 0x80990a97, 0x3962d17f,
+    0x281fbb06, 0x91e460ee, 0xc56ca373, 0x7c97789b, 0x6dea12e2,
+    0xd411c90a, 0x4f10c610, 0xf6eb1df8, 0xe7967781, 0x5e6dac69,
+    0xc642ce25, 0x7fb915cd, 0x6ec47fb4, 0xd73fa45c, 0x4c3eab46,
+    0xf5c570ae, 0xe4b81ad7, 0x5d43c13f, 0x09cb02a2, 0xb030d94a,
+    0xa14db333, 0x18b668db, 0x83b767c1, 0x3a4cbc29, 0x2b31d650,
+    0x92ca0db8, 0x8220516a, 0x3bdb8a82, 0x2aa6e0fb, 0x935d3b13,
+    0x085c3409, 0xb1a7efe1, 0xa0da8598, 0x19215e70, 0x4da99ded,
+    0xf4524605, 0xe52f2c7c, 0x5cd4f794, 0xc7d5f88e, 0x7e2e2366,
+    0x6f53491f, 0xd6a892f7, 0x847c8bc6, 0x3d87502e, 0x2cfa3a57,
+    0x9501e1bf, 0x0e00eea5, 0xb7fb354d, 0xa6865f34, 0x1f7d84dc,
+    0x4bf54741, 0xf20e9ca9, 0xe373f6d0, 0x5a882d38, 0xc1892222,
+    0x7872f9ca, 0x690f93b3, 0xd0f4485b, 0xc01e1489, 0x79e5cf61,
+    0x6898a518, 0xd1637ef0, 0x4a6271ea, 0xf399aa02, 0xe2e4c07b,
+    0x5b1f1b93, 0x0f97d80e, 0xb66c03e6, 0xa711699f, 0x1eeab277,
+    0x85ebbd6d, 0x3c106685, 0x2d6d0cfc, 0x9496d714, 0x0cb9b558,
+    0xb5426eb0, 0xa43f04c9, 0x1dc4df21, 0x86c5d03b, 0x3f3e0bd3,
+    0x2e4361aa, 0x97b8ba42, 0xc33079df, 0x7acba237, 0x6bb6c84e,
+    0xd24d13a6, 0x494c1cbc, 0xf0b7c754, 0xe1caad2d, 0x583176c5,
+    0x48db2a17, 0xf120f1ff, 0xe05d9b86, 0x59a6406e, 0xc2a74f74,
+    0x7b5c949c, 0x6a21fee5, 0xd3da250d, 0x8752e690, 0x3ea93d78,
+    0x2fd45701, 0x962f8ce9, 0x0d2e83f3, 0xb4d5581b, 0xa5a83262,
+    0x1c53e98a},
+   {0x00000000, 0x9d0fe176, 0xe16ec4ad, 0x7c6125db, 0x19ac8f1b,
+    0x84a36e6d, 0xf8c24bb6, 0x65cdaac0, 0x33591e36, 0xae56ff40,
+    0xd237da9b, 0x4f383bed, 0x2af5912d, 0xb7fa705b, 0xcb9b5580,
+    0x5694b4f6, 0x66b23c6c, 0xfbbddd1a, 0x87dcf8c1, 0x1ad319b7,
+    0x7f1eb377, 0xe2115201, 0x9e7077da, 0x037f96ac, 0x55eb225a,
+    0xc8e4c32c, 0xb485e6f7, 0x298a0781, 0x4c47ad41, 0xd1484c37,
+    0xad2969ec, 0x3026889a, 0xcd6478d8, 0x506b99ae, 0x2c0abc75,
+    0xb1055d03, 0xd4c8f7c3, 0x49c716b5, 0x35a6336e, 0xa8a9d218,
+    0xfe3d66ee, 0x63328798, 0x1f53a243, 0x825c4335, 0xe791e9f5,
+    0x7a9e0883, 0x06ff2d58, 0x9bf0cc2e, 0xabd644b4, 0x36d9a5c2,
+    0x4ab88019, 0xd7b7616f, 0xb27acbaf, 0x2f752ad9, 0x53140f02,
+    0xce1bee74, 0x988f5a82, 0x0580bbf4, 0x79e19e2f, 0xe4ee7f59,
+    0x8123d599, 0x1c2c34ef, 0x604d1134, 0xfd42f042, 0x41b9f7f1,
+    0xdcb61687, 0xa0d7335c, 0x3dd8d22a, 0x581578ea, 0xc51a999c,
+    0xb97bbc47, 0x24745d31, 0x72e0e9c7, 0xefef08b1, 0x938e2d6a,
+    0x0e81cc1c, 0x6b4c66dc, 0xf64387aa, 0x8a22a271, 0x172d4307,
+    0x270bcb9d, 0xba042aeb, 0xc6650f30, 0x5b6aee46, 0x3ea74486,
+    0xa3a8a5f0, 0xdfc9802b, 0x42c6615d, 0x1452d5ab, 0x895d34dd,
+    0xf53c1106, 0x6833f070, 0x0dfe5ab0, 0x90f1bbc6, 0xec909e1d,
+    0x719f7f6b, 0x8cdd8f29, 0x11d26e5f, 0x6db34b84, 0xf0bcaaf2,
+    0x95710032, 0x087ee144, 0x741fc49f, 0xe91025e9, 0xbf84911f,
+    0x228b7069, 0x5eea55b2, 0xc3e5b4c4, 0xa6281e04, 0x3b27ff72,
+    0x4746daa9, 0xda493bdf, 0xea6fb345, 0x77605233, 0x0b0177e8,
+    0x960e969e, 0xf3c33c5e, 0x6eccdd28, 0x12adf8f3, 0x8fa21985,
+    0xd936ad73, 0x44394c05, 0x385869de, 0xa55788a8, 0xc09a2268,
+    0x5d95c31e, 0x21f4e6c5, 0xbcfb07b3, 0x8373efe2, 0x1e7c0e94,
+    0x621d2b4f, 0xff12ca39, 0x9adf60f9, 0x07d0818f, 0x7bb1a454,
+    0xe6be4522, 0xb02af1d4, 0x2d2510a2, 0x51443579, 0xcc4bd40f,
+    0xa9867ecf, 0x34899fb9, 0x48e8ba62, 0xd5e75b14, 0xe5c1d38e,
+    0x78ce32f8, 0x04af1723, 0x99a0f655, 0xfc6d5c95, 0x6162bde3,
+    0x1d039838, 0x800c794e, 0xd698cdb8, 0x4b972cce, 0x37f60915,
+    0xaaf9e863, 0xcf3442a3, 0x523ba3d5, 0x2e5a860e, 0xb3556778,
+    0x4e17973a, 0xd318764c, 0xaf795397, 0x3276b2e1, 0x57bb1821,
+    0xcab4f957, 0xb6d5dc8c, 0x2bda3dfa, 0x7d4e890c, 0xe041687a,
+    0x9c204da1, 0x012facd7, 0x64e20617, 0xf9ede761, 0x858cc2ba,
+    0x188323cc, 0x28a5ab56, 0xb5aa4a20, 0xc9cb6ffb, 0x54c48e8d,
+    0x3109244d, 0xac06c53b, 0xd067e0e0, 0x4d680196, 0x1bfcb560,
+    0x86f35416, 0xfa9271cd, 0x679d90bb, 0x02503a7b, 0x9f5fdb0d,
+    0xe33efed6, 0x7e311fa0, 0xc2ca1813, 0x5fc5f965, 0x23a4dcbe,
+    0xbeab3dc8, 0xdb669708, 0x4669767e, 0x3a0853a5, 0xa707b2d3,
+    0xf1930625, 0x6c9ce753, 0x10fdc288, 0x8df223fe, 0xe83f893e,
+    0x75306848, 0x09514d93, 0x945eace5, 0xa478247f, 0x3977c509,
+    0x4516e0d2, 0xd81901a4, 0xbdd4ab64, 0x20db4a12, 0x5cba6fc9,
+    0xc1b58ebf, 0x97213a49, 0x0a2edb3f, 0x764ffee4, 0xeb401f92,
+    0x8e8db552, 0x13825424, 0x6fe371ff, 0xf2ec9089, 0x0fae60cb,
+    0x92a181bd, 0xeec0a466, 0x73cf4510, 0x1602efd0, 0x8b0d0ea6,
+    0xf76c2b7d, 0x6a63ca0b, 0x3cf77efd, 0xa1f89f8b, 0xdd99ba50,
+    0x40965b26, 0x255bf1e6, 0xb8541090, 0xc435354b, 0x593ad43d,
+    0x691c5ca7, 0xf413bdd1, 0x8872980a, 0x157d797c, 0x70b0d3bc,
+    0xedbf32ca, 0x91de1711, 0x0cd1f667, 0x5a454291, 0xc74aa3e7,
+    0xbb2b863c, 0x2624674a, 0x43e9cd8a, 0xdee62cfc, 0xa2870927,
+    0x3f88e851},
+   {0x00000000, 0xdd96d985, 0x605cb54b, 0xbdca6cce, 0xc0b96a96,
+    0x1d2fb313, 0xa0e5dfdd, 0x7d730658, 0x5a03d36d, 0x87950ae8,
+    0x3a5f6626, 0xe7c9bfa3, 0x9abab9fb, 0x472c607e, 0xfae60cb0,
+    0x2770d535, 0xb407a6da, 0x69917f5f, 0xd45b1391, 0x09cdca14,
+    0x74becc4c, 0xa92815c9, 0x14e27907, 0xc974a082, 0xee0475b7,
+    0x3392ac32, 0x8e58c0fc, 0x53ce1979, 0x2ebd1f21, 0xf32bc6a4,
+    0x4ee1aa6a, 0x937773ef, 0xb37e4bf5, 0x6ee89270, 0xd322febe,
+    0x0eb4273b, 0x73c72163, 0xae51f8e6, 0x139b9428, 0xce0d4dad,
+    0xe97d9898, 0x34eb411d, 0x89212dd3, 0x54b7f456, 0x29c4f20e,
+    0xf4522b8b, 0x49984745, 0x940e9ec0, 0x0779ed2f, 0xdaef34aa,
+    0x67255864, 0xbab381e1, 0xc7c087b9, 0x1a565e3c, 0xa79c32f2,
+    0x7a0aeb77, 0x5d7a3e42, 0x80ece7c7, 0x3d268b09, 0xe0b0528c,
+    0x9dc354d4, 0x40558d51, 0xfd9fe19f, 0x2009381a, 0xbd8d91ab,
+    0x601b482e, 0xddd124e0, 0x0047fd65, 0x7d34fb3d, 0xa0a222b8,
+    0x1d684e76, 0xc0fe97f3, 0xe78e42c6, 0x3a189b43, 0x87d2f78d,
+    0x5a442e08, 0x27372850, 0xfaa1f1d5, 0x476b9d1b, 0x9afd449e,
+    0x098a3771, 0xd41ceef4, 0x69d6823a, 0xb4405bbf, 0xc9335de7,
+    0x14a58462, 0xa96fe8ac, 0x74f93129, 0x5389e41c, 0x8e1f3d99,
+    0x33d55157, 0xee4388d2, 0x93308e8a, 0x4ea6570f, 0xf36c3bc1,
+    0x2efae244, 0x0ef3da5e, 0xd36503db, 0x6eaf6f15, 0xb339b690,
+    0xce4ab0c8, 0x13dc694d, 0xae160583, 0x7380dc06, 0x54f00933,
+    0x8966d0b6, 0x34acbc78, 0xe93a65fd, 0x944963a5, 0x49dfba20,
+    0xf415d6ee, 0x29830f6b, 0xbaf47c84, 0x6762a501, 0xdaa8c9cf,
+    0x073e104a, 0x7a4d1612, 0xa7dbcf97, 0x1a11a359, 0xc7877adc,
+    0xe0f7afe9, 0x3d61766c, 0x80ab1aa2, 0x5d3dc327, 0x204ec57f,
+    0xfdd81cfa, 0x40127034, 0x9d84a9b1, 0xa06a2517, 0x7dfcfc92,
+    0xc036905c, 0x1da049d9, 0x60d34f81, 0xbd459604, 0x008ffaca,
+    0xdd19234f, 0xfa69f67a, 0x27ff2fff, 0x9a354331, 0x47a39ab4,
+    0x3ad09cec, 0xe7464569, 0x5a8c29a7, 0x871af022, 0x146d83cd,
+    0xc9fb5a48, 0x74313686, 0xa9a7ef03, 0xd4d4e95b, 0x094230de,
+    0xb4885c10, 0x691e8595, 0x4e6e50a0, 0x93f88925, 0x2e32e5eb,
+    0xf3a43c6e, 0x8ed73a36, 0x5341e3b3, 0xee8b8f7d, 0x331d56f8,
+    0x13146ee2, 0xce82b767, 0x7348dba9, 0xaede022c, 0xd3ad0474,
+    0x0e3bddf1, 0xb3f1b13f, 0x6e6768ba, 0x4917bd8f, 0x9481640a,
+    0x294b08c4, 0xf4ddd141, 0x89aed719, 0x54380e9c, 0xe9f26252,
+    0x3464bbd7, 0xa713c838, 0x7a8511bd, 0xc74f7d73, 0x1ad9a4f6,
+    0x67aaa2ae, 0xba3c7b2b, 0x07f617e5, 0xda60ce60, 0xfd101b55,
+    0x2086c2d0, 0x9d4cae1e, 0x40da779b, 0x3da971c3, 0xe03fa846,
+    0x5df5c488, 0x80631d0d, 0x1de7b4bc, 0xc0716d39, 0x7dbb01f7,
+    0xa02dd872, 0xdd5ede2a, 0x00c807af, 0xbd026b61, 0x6094b2e4,
+    0x47e467d1, 0x9a72be54, 0x27b8d29a, 0xfa2e0b1f, 0x875d0d47,
+    0x5acbd4c2, 0xe701b80c, 0x3a976189, 0xa9e01266, 0x7476cbe3,
+    0xc9bca72d, 0x142a7ea8, 0x695978f0, 0xb4cfa175, 0x0905cdbb,
+    0xd493143e, 0xf3e3c10b, 0x2e75188e, 0x93bf7440, 0x4e29adc5,
+    0x335aab9d, 0xeecc7218, 0x53061ed6, 0x8e90c753, 0xae99ff49,
+    0x730f26cc, 0xcec54a02, 0x13539387, 0x6e2095df, 0xb3b64c5a,
+    0x0e7c2094, 0xd3eaf911, 0xf49a2c24, 0x290cf5a1, 0x94c6996f,
+    0x495040ea, 0x342346b2, 0xe9b59f37, 0x547ff3f9, 0x89e92a7c,
+    0x1a9e5993, 0xc7088016, 0x7ac2ecd8, 0xa754355d, 0xda273305,
+    0x07b1ea80, 0xba7b864e, 0x67ed5fcb, 0x409d8afe, 0x9d0b537b,
+    0x20c13fb5, 0xfd57e630, 0x8024e068, 0x5db239ed, 0xe0785523,
+    0x3dee8ca6}};
+
+local const z_word_t FAR crc_braid_big_table[][256] = {
+   {0x00000000, 0x85d996dd, 0x4bb55c60, 0xce6ccabd, 0x966ab9c0,
+    0x13b32f1d, 0xdddfe5a0, 0x5806737d, 0x6dd3035a, 0xe80a9587,
+    0x26665f3a, 0xa3bfc9e7, 0xfbb9ba9a, 0x7e602c47, 0xb00ce6fa,
+    0x35d57027, 0xdaa607b4, 0x5f7f9169, 0x91135bd4, 0x14cacd09,
+    0x4cccbe74, 0xc91528a9, 0x0779e214, 0x82a074c9, 0xb77504ee,
+    0x32ac9233, 0xfcc0588e, 0x7919ce53, 0x211fbd2e, 0xa4c62bf3,
+    0x6aaae14e, 0xef737793, 0xf54b7eb3, 0x7092e86e, 0xbefe22d3,
+    0x3b27b40e, 0x6321c773, 0xe6f851ae, 0x28949b13, 0xad4d0dce,
+    0x98987de9, 0x1d41eb34, 0xd32d2189, 0x56f4b754, 0x0ef2c429,
+    0x8b2b52f4, 0x45479849, 0xc09e0e94, 0x2fed7907, 0xaa34efda,
+    0x64582567, 0xe181b3ba, 0xb987c0c7, 0x3c5e561a, 0xf2329ca7,
+    0x77eb0a7a, 0x423e7a5d, 0xc7e7ec80, 0x098b263d, 0x8c52b0e0,
+    0xd454c39d, 0x518d5540, 0x9fe19ffd, 0x1a380920, 0xab918dbd,
+    0x2e481b60, 0xe024d1dd, 0x65fd4700, 0x3dfb347d, 0xb822a2a0,
+    0x764e681d, 0xf397fec0, 0xc6428ee7, 0x439b183a, 0x8df7d287,
+    0x082e445a, 0x50283727, 0xd5f1a1fa, 0x1b9d6b47, 0x9e44fd9a,
+    0x71378a09, 0xf4ee1cd4, 0x3a82d669, 0xbf5b40b4, 0xe75d33c9,
+    0x6284a514, 0xace86fa9, 0x2931f974, 0x1ce48953, 0x993d1f8e,
+    0x5751d533, 0xd28843ee, 0x8a8e3093, 0x0f57a64e, 0xc13b6cf3,
+    0x44e2fa2e, 0x5edaf30e, 0xdb0365d3, 0x156faf6e, 0x90b639b3,
+    0xc8b04ace, 0x4d69dc13, 0x830516ae, 0x06dc8073, 0x3309f054,
+    0xb6d06689, 0x78bcac34, 0xfd653ae9, 0xa5634994, 0x20badf49,
+    0xeed615f4, 0x6b0f8329, 0x847cf4ba, 0x01a56267, 0xcfc9a8da,
+    0x4a103e07, 0x12164d7a, 0x97cfdba7, 0x59a3111a, 0xdc7a87c7,
+    0xe9aff7e0, 0x6c76613d, 0xa21aab80, 0x27c33d5d, 0x7fc54e20,
+    0xfa1cd8fd, 0x34701240, 0xb1a9849d, 0x17256aa0, 0x92fcfc7d,
+    0x5c9036c0, 0xd949a01d, 0x814fd360, 0x049645bd, 0xcafa8f00,
+    0x4f2319dd, 0x7af669fa, 0xff2fff27, 0x3143359a, 0xb49aa347,
+    0xec9cd03a, 0x694546e7, 0xa7298c5a, 0x22f01a87, 0xcd836d14,
+    0x485afbc9, 0x86363174, 0x03efa7a9, 0x5be9d4d4, 0xde304209,
+    0x105c88b4, 0x95851e69, 0xa0506e4e, 0x2589f893, 0xebe5322e,
+    0x6e3ca4f3, 0x363ad78e, 0xb3e34153, 0x7d8f8bee, 0xf8561d33,
+    0xe26e1413, 0x67b782ce, 0xa9db4873, 0x2c02deae, 0x7404add3,
+    0xf1dd3b0e, 0x3fb1f1b3, 0xba68676e, 0x8fbd1749, 0x0a648194,
+    0xc4084b29, 0x41d1ddf4, 0x19d7ae89, 0x9c0e3854, 0x5262f2e9,
+    0xd7bb6434, 0x38c813a7, 0xbd11857a, 0x737d4fc7, 0xf6a4d91a,
+    0xaea2aa67, 0x2b7b3cba, 0xe517f607, 0x60ce60da, 0x551b10fd,
+    0xd0c28620, 0x1eae4c9d, 0x9b77da40, 0xc371a93d, 0x46a83fe0,
+    0x88c4f55d, 0x0d1d6380, 0xbcb4e71d, 0x396d71c0, 0xf701bb7d,
+    0x72d82da0, 0x2ade5edd, 0xaf07c800, 0x616b02bd, 0xe4b29460,
+    0xd167e447, 0x54be729a, 0x9ad2b827, 0x1f0b2efa, 0x470d5d87,
+    0xc2d4cb5a, 0x0cb801e7, 0x8961973a, 0x6612e0a9, 0xe3cb7674,
+    0x2da7bcc9, 0xa87e2a14, 0xf0785969, 0x75a1cfb4, 0xbbcd0509,
+    0x3e1493d4, 0x0bc1e3f3, 0x8e18752e, 0x4074bf93, 0xc5ad294e,
+    0x9dab5a33, 0x1872ccee, 0xd61e0653, 0x53c7908e, 0x49ff99ae,
+    0xcc260f73, 0x024ac5ce, 0x87935313, 0xdf95206e, 0x5a4cb6b3,
+    0x94207c0e, 0x11f9ead3, 0x242c9af4, 0xa1f50c29, 0x6f99c694,
+    0xea405049, 0xb2462334, 0x379fb5e9, 0xf9f37f54, 0x7c2ae989,
+    0x93599e1a, 0x168008c7, 0xd8ecc27a, 0x5d3554a7, 0x053327da,
+    0x80eab107, 0x4e867bba, 0xcb5fed67, 0xfe8a9d40, 0x7b530b9d,
+    0xb53fc120, 0x30e657fd, 0x68e02480, 0xed39b25d, 0x235578e0,
+    0xa68cee3d},
+   {0x00000000, 0x76e10f9d, 0xadc46ee1, 0xdb25617c, 0x1b8fac19,
+    0x6d6ea384, 0xb64bc2f8, 0xc0aacd65, 0x361e5933, 0x40ff56ae,
+    0x9bda37d2, 0xed3b384f, 0x2d91f52a, 0x5b70fab7, 0x80559bcb,
+    0xf6b49456, 0x6c3cb266, 0x1addbdfb, 0xc1f8dc87, 0xb719d31a,
+    0x77b31e7f, 0x015211e2, 0xda77709e, 0xac967f03, 0x5a22eb55,
+    0x2cc3e4c8, 0xf7e685b4, 0x81078a29, 0x41ad474c, 0x374c48d1,
+    0xec6929ad, 0x9a882630, 0xd87864cd, 0xae996b50, 0x75bc0a2c,
+    0x035d05b1, 0xc3f7c8d4, 0xb516c749, 0x6e33a635, 0x18d2a9a8,
+    0xee663dfe, 0x98873263, 0x43a2531f, 0x35435c82, 0xf5e991e7,
+    0x83089e7a, 0x582dff06, 0x2eccf09b, 0xb444d6ab, 0xc2a5d936,
+    0x1980b84a, 0x6f61b7d7, 0xafcb7ab2, 0xd92a752f, 0x020f1453,
+    0x74ee1bce, 0x825a8f98, 0xf4bb8005, 0x2f9ee179, 0x597feee4,
+    0x99d52381, 0xef342c1c, 0x34114d60, 0x42f042fd, 0xf1f7b941,
+    0x8716b6dc, 0x5c33d7a0, 0x2ad2d83d, 0xea781558, 0x9c991ac5,
+    0x47bc7bb9, 0x315d7424, 0xc7e9e072, 0xb108efef, 0x6a2d8e93,
+    0x1ccc810e, 0xdc664c6b, 0xaa8743f6, 0x71a2228a, 0x07432d17,
+    0x9dcb0b27, 0xeb2a04ba, 0x300f65c6, 0x46ee6a5b, 0x8644a73e,
+    0xf0a5a8a3, 0x2b80c9df, 0x5d61c642, 0xabd55214, 0xdd345d89,
+    0x06113cf5, 0x70f03368, 0xb05afe0d, 0xc6bbf190, 0x1d9e90ec,
+    0x6b7f9f71, 0x298fdd8c, 0x5f6ed211, 0x844bb36d, 0xf2aabcf0,
+    0x32007195, 0x44e17e08, 0x9fc41f74, 0xe92510e9, 0x1f9184bf,
+    0x69708b22, 0xb255ea5e, 0xc4b4e5c3, 0x041e28a6, 0x72ff273b,
+    0xa9da4647, 0xdf3b49da, 0x45b36fea, 0x33526077, 0xe877010b,
+    0x9e960e96, 0x5e3cc3f3, 0x28ddcc6e, 0xf3f8ad12, 0x8519a28f,
+    0x73ad36d9, 0x054c3944, 0xde695838, 0xa88857a5, 0x68229ac0,
+    0x1ec3955d, 0xc5e6f421, 0xb307fbbc, 0xe2ef7383, 0x940e7c1e,
+    0x4f2b1d62, 0x39ca12ff, 0xf960df9a, 0x8f81d007, 0x54a4b17b,
+    0x2245bee6, 0xd4f12ab0, 0xa210252d, 0x79354451, 0x0fd44bcc,
+    0xcf7e86a9, 0xb99f8934, 0x62bae848, 0x145be7d5, 0x8ed3c1e5,
+    0xf832ce78, 0x2317af04, 0x55f6a099, 0x955c6dfc, 0xe3bd6261,
+    0x3898031d, 0x4e790c80, 0xb8cd98d6, 0xce2c974b, 0x1509f637,
+    0x63e8f9aa, 0xa34234cf, 0xd5a33b52, 0x0e865a2e, 0x786755b3,
+    0x3a97174e, 0x4c7618d3, 0x975379af, 0xe1b27632, 0x2118bb57,
+    0x57f9b4ca, 0x8cdcd5b6, 0xfa3dda2b, 0x0c894e7d, 0x7a6841e0,
+    0xa14d209c, 0xd7ac2f01, 0x1706e264, 0x61e7edf9, 0xbac28c85,
+    0xcc238318, 0x56aba528, 0x204aaab5, 0xfb6fcbc9, 0x8d8ec454,
+    0x4d240931, 0x3bc506ac, 0xe0e067d0, 0x9601684d, 0x60b5fc1b,
+    0x1654f386, 0xcd7192fa, 0xbb909d67, 0x7b3a5002, 0x0ddb5f9f,
+    0xd6fe3ee3, 0xa01f317e, 0x1318cac2, 0x65f9c55f, 0xbedca423,
+    0xc83dabbe, 0x089766db, 0x7e766946, 0xa553083a, 0xd3b207a7,
+    0x250693f1, 0x53e79c6c, 0x88c2fd10, 0xfe23f28d, 0x3e893fe8,
+    0x48683075, 0x934d5109, 0xe5ac5e94, 0x7f2478a4, 0x09c57739,
+    0xd2e01645, 0xa40119d8, 0x64abd4bd, 0x124adb20, 0xc96fba5c,
+    0xbf8eb5c1, 0x493a2197, 0x3fdb2e0a, 0xe4fe4f76, 0x921f40eb,
+    0x52b58d8e, 0x24548213, 0xff71e36f, 0x8990ecf2, 0xcb60ae0f,
+    0xbd81a192, 0x66a4c0ee, 0x1045cf73, 0xd0ef0216, 0xa60e0d8b,
+    0x7d2b6cf7, 0x0bca636a, 0xfd7ef73c, 0x8b9ff8a1, 0x50ba99dd,
+    0x265b9640, 0xe6f15b25, 0x901054b8, 0x4b3535c4, 0x3dd43a59,
+    0xa75c1c69, 0xd1bd13f4, 0x0a987288, 0x7c797d15, 0xbcd3b070,
+    0xca32bfed, 0x1117de91, 0x67f6d10c, 0x9142455a, 0xe7a34ac7,
+    0x3c862bbb, 0x4a672426, 0x8acde943, 0xfc2ce6de, 0x270987a2,
+    0x51e8883f},
+   {0x00000000, 0xe8dbfbb9, 0x91b186a8, 0x796a7d11, 0x63657c8a,
+    0x8bbe8733, 0xf2d4fa22, 0x1a0f019b, 0x87cc89cf, 0x6f177276,
+    0x167d0f67, 0xfea6f4de, 0xe4a9f545, 0x0c720efc, 0x751873ed,
+    0x9dc38854, 0x4f9f6244, 0xa74499fd, 0xde2ee4ec, 0x36f51f55,
+    0x2cfa1ece, 0xc421e577, 0xbd4b9866, 0x559063df, 0xc853eb8b,
+    0x20881032, 0x59e26d23, 0xb139969a, 0xab369701, 0x43ed6cb8,
+    0x3a8711a9, 0xd25cea10, 0x9e3ec588, 0x76e53e31, 0x0f8f4320,
+    0xe754b899, 0xfd5bb902, 0x158042bb, 0x6cea3faa, 0x8431c413,
+    0x19f24c47, 0xf129b7fe, 0x8843caef, 0x60983156, 0x7a9730cd,
+    0x924ccb74, 0xeb26b665, 0x03fd4ddc, 0xd1a1a7cc, 0x397a5c75,
+    0x40102164, 0xa8cbdadd, 0xb2c4db46, 0x5a1f20ff, 0x23755dee,
+    0xcbaea657, 0x566d2e03, 0xbeb6d5ba, 0xc7dca8ab, 0x2f075312,
+    0x35085289, 0xddd3a930, 0xa4b9d421, 0x4c622f98, 0x7d7bfbca,
+    0x95a00073, 0xecca7d62, 0x041186db, 0x1e1e8740, 0xf6c57cf9,
+    0x8faf01e8, 0x6774fa51, 0xfab77205, 0x126c89bc, 0x6b06f4ad,
+    0x83dd0f14, 0x99d20e8f, 0x7109f536, 0x08638827, 0xe0b8739e,
+    0x32e4998e, 0xda3f6237, 0xa3551f26, 0x4b8ee49f, 0x5181e504,
+    0xb95a1ebd, 0xc03063ac, 0x28eb9815, 0xb5281041, 0x5df3ebf8,
+    0x249996e9, 0xcc426d50, 0xd64d6ccb, 0x3e969772, 0x47fcea63,
+    0xaf2711da, 0xe3453e42, 0x0b9ec5fb, 0x72f4b8ea, 0x9a2f4353,
+    0x802042c8, 0x68fbb971, 0x1191c460, 0xf94a3fd9, 0x6489b78d,
+    0x8c524c34, 0xf5383125, 0x1de3ca9c, 0x07eccb07, 0xef3730be,
+    0x965d4daf, 0x7e86b616, 0xacda5c06, 0x4401a7bf, 0x3d6bdaae,
+    0xd5b02117, 0xcfbf208c, 0x2764db35, 0x5e0ea624, 0xb6d55d9d,
+    0x2b16d5c9, 0xc3cd2e70, 0xbaa75361, 0x527ca8d8, 0x4873a943,
+    0xa0a852fa, 0xd9c22feb, 0x3119d452, 0xbbf0874e, 0x532b7cf7,
+    0x2a4101e6, 0xc29afa5f, 0xd895fbc4, 0x304e007d, 0x49247d6c,
+    0xa1ff86d5, 0x3c3c0e81, 0xd4e7f538, 0xad8d8829, 0x45567390,
+    0x5f59720b, 0xb78289b2, 0xcee8f4a3, 0x26330f1a, 0xf46fe50a,
+    0x1cb41eb3, 0x65de63a2, 0x8d05981b, 0x970a9980, 0x7fd16239,
+    0x06bb1f28, 0xee60e491, 0x73a36cc5, 0x9b78977c, 0xe212ea6d,
+    0x0ac911d4, 0x10c6104f, 0xf81debf6, 0x817796e7, 0x69ac6d5e,
+    0x25ce42c6, 0xcd15b97f, 0xb47fc46e, 0x5ca43fd7, 0x46ab3e4c,
+    0xae70c5f5, 0xd71ab8e4, 0x3fc1435d, 0xa202cb09, 0x4ad930b0,
+    0x33b34da1, 0xdb68b618, 0xc167b783, 0x29bc4c3a, 0x50d6312b,
+    0xb80dca92, 0x6a512082, 0x828adb3b, 0xfbe0a62a, 0x133b5d93,
+    0x09345c08, 0xe1efa7b1, 0x9885daa0, 0x705e2119, 0xed9da94d,
+    0x054652f4, 0x7c2c2fe5, 0x94f7d45c, 0x8ef8d5c7, 0x66232e7e,
+    0x1f49536f, 0xf792a8d6, 0xc68b7c84, 0x2e50873d, 0x573afa2c,
+    0xbfe10195, 0xa5ee000e, 0x4d35fbb7, 0x345f86a6, 0xdc847d1f,
+    0x4147f54b, 0xa99c0ef2, 0xd0f673e3, 0x382d885a, 0x222289c1,
+    0xcaf97278, 0xb3930f69, 0x5b48f4d0, 0x89141ec0, 0x61cfe579,
+    0x18a59868, 0xf07e63d1, 0xea71624a, 0x02aa99f3, 0x7bc0e4e2,
+    0x931b1f5b, 0x0ed8970f, 0xe6036cb6, 0x9f6911a7, 0x77b2ea1e,
+    0x6dbdeb85, 0x8566103c, 0xfc0c6d2d, 0x14d79694, 0x58b5b90c,
+    0xb06e42b5, 0xc9043fa4, 0x21dfc41d, 0x3bd0c586, 0xd30b3e3f,
+    0xaa61432e, 0x42bab897, 0xdf7930c3, 0x37a2cb7a, 0x4ec8b66b,
+    0xa6134dd2, 0xbc1c4c49, 0x54c7b7f0, 0x2dadcae1, 0xc5763158,
+    0x172adb48, 0xfff120f1, 0x869b5de0, 0x6e40a659, 0x744fa7c2,
+    0x9c945c7b, 0xe5fe216a, 0x0d25dad3, 0x90e65287, 0x783da93e,
+    0x0157d42f, 0xe98c2f96, 0xf3832e0d, 0x1b58d5b4, 0x6232a8a5,
+    0x8ae9531c},
+   {0x00000000, 0x919168ae, 0x6325a087, 0xf2b4c829, 0x874c31d4,
+    0x16dd597a, 0xe4699153, 0x75f8f9fd, 0x4f9f1373, 0xde0e7bdd,
+    0x2cbab3f4, 0xbd2bdb5a, 0xc8d322a7, 0x59424a09, 0xabf68220,
+    0x3a67ea8e, 0x9e3e27e6, 0x0faf4f48, 0xfd1b8761, 0x6c8aefcf,
+    0x19721632, 0x88e37e9c, 0x7a57b6b5, 0xebc6de1b, 0xd1a13495,
+    0x40305c3b, 0xb2849412, 0x2315fcbc, 0x56ed0541, 0xc77c6def,
+    0x35c8a5c6, 0xa459cd68, 0x7d7b3f17, 0xecea57b9, 0x1e5e9f90,
+    0x8fcff73e, 0xfa370ec3, 0x6ba6666d, 0x9912ae44, 0x0883c6ea,
+    0x32e42c64, 0xa37544ca, 0x51c18ce3, 0xc050e44d, 0xb5a81db0,
+    0x2439751e, 0xd68dbd37, 0x471cd599, 0xe34518f1, 0x72d4705f,
+    0x8060b876, 0x11f1d0d8, 0x64092925, 0xf598418b, 0x072c89a2,
+    0x96bde10c, 0xacda0b82, 0x3d4b632c, 0xcfffab05, 0x5e6ec3ab,
+    0x2b963a56, 0xba0752f8, 0x48b39ad1, 0xd922f27f, 0xfaf67e2e,
+    0x6b671680, 0x99d3dea9, 0x0842b607, 0x7dba4ffa, 0xec2b2754,
+    0x1e9fef7d, 0x8f0e87d3, 0xb5696d5d, 0x24f805f3, 0xd64ccdda,
+    0x47dda574, 0x32255c89, 0xa3b43427, 0x5100fc0e, 0xc09194a0,
+    0x64c859c8, 0xf5593166, 0x07edf94f, 0x967c91e1, 0xe384681c,
+    0x721500b2, 0x80a1c89b, 0x1130a035, 0x2b574abb, 0xbac62215,
+    0x4872ea3c, 0xd9e38292, 0xac1b7b6f, 0x3d8a13c1, 0xcf3edbe8,
+    0x5eafb346, 0x878d4139, 0x161c2997, 0xe4a8e1be, 0x75398910,
+    0x00c170ed, 0x91501843, 0x63e4d06a, 0xf275b8c4, 0xc812524a,
+    0x59833ae4, 0xab37f2cd, 0x3aa69a63, 0x4f5e639e, 0xdecf0b30,
+    0x2c7bc319, 0xbdeaabb7, 0x19b366df, 0x88220e71, 0x7a96c658,
+    0xeb07aef6, 0x9eff570b, 0x0f6e3fa5, 0xfddaf78c, 0x6c4b9f22,
+    0x562c75ac, 0xc7bd1d02, 0x3509d52b, 0xa498bd85, 0xd1604478,
+    0x40f12cd6, 0xb245e4ff, 0x23d48c51, 0xf4edfd5c, 0x657c95f2,
+    0x97c85ddb, 0x06593575, 0x73a1cc88, 0xe230a426, 0x10846c0f,
+    0x811504a1, 0xbb72ee2f, 0x2ae38681, 0xd8574ea8, 0x49c62606,
+    0x3c3edffb, 0xadafb755, 0x5f1b7f7c, 0xce8a17d2, 0x6ad3daba,
+    0xfb42b214, 0x09f67a3d, 0x98671293, 0xed9feb6e, 0x7c0e83c0,
+    0x8eba4be9, 0x1f2b2347, 0x254cc9c9, 0xb4dda167, 0x4669694e,
+    0xd7f801e0, 0xa200f81d, 0x339190b3, 0xc125589a, 0x50b43034,
+    0x8996c24b, 0x1807aae5, 0xeab362cc, 0x7b220a62, 0x0edaf39f,
+    0x9f4b9b31, 0x6dff5318, 0xfc6e3bb6, 0xc609d138, 0x5798b996,
+    0xa52c71bf, 0x34bd1911, 0x4145e0ec, 0xd0d48842, 0x2260406b,
+    0xb3f128c5, 0x17a8e5ad, 0x86398d03, 0x748d452a, 0xe51c2d84,
+    0x90e4d479, 0x0175bcd7, 0xf3c174fe, 0x62501c50, 0x5837f6de,
+    0xc9a69e70, 0x3b125659, 0xaa833ef7, 0xdf7bc70a, 0x4eeaafa4,
+    0xbc5e678d, 0x2dcf0f23, 0x0e1b8372, 0x9f8aebdc, 0x6d3e23f5,
+    0xfcaf4b5b, 0x8957b2a6, 0x18c6da08, 0xea721221, 0x7be37a8f,
+    0x41849001, 0xd015f8af, 0x22a13086, 0xb3305828, 0xc6c8a1d5,
+    0x5759c97b, 0xa5ed0152, 0x347c69fc, 0x9025a494, 0x01b4cc3a,
+    0xf3000413, 0x62916cbd, 0x17699540, 0x86f8fdee, 0x744c35c7,
+    0xe5dd5d69, 0xdfbab7e7, 0x4e2bdf49, 0xbc9f1760, 0x2d0e7fce,
+    0x58f68633, 0xc967ee9d, 0x3bd326b4, 0xaa424e1a, 0x7360bc65,
+    0xe2f1d4cb, 0x10451ce2, 0x81d4744c, 0xf42c8db1, 0x65bde51f,
+    0x97092d36, 0x06984598, 0x3cffaf16, 0xad6ec7b8, 0x5fda0f91,
+    0xce4b673f, 0xbbb39ec2, 0x2a22f66c, 0xd8963e45, 0x490756eb,
+    0xed5e9b83, 0x7ccff32d, 0x8e7b3b04, 0x1fea53aa, 0x6a12aa57,
+    0xfb83c2f9, 0x09370ad0, 0x98a6627e, 0xa2c188f0, 0x3350e05e,
+    0xc1e42877, 0x507540d9, 0x258db924, 0xb41cd18a, 0x46a819a3,
+    0xd739710d}};
+
+#endif
+
+#endif
+
+#if N == 5
+
+#if W == 8
+
+local const z_crc_t FAR crc_braid_table[][256] = {
+   {0x00000000, 0xaf449247, 0x85f822cf, 0x2abcb088, 0xd08143df,
+    0x7fc5d198, 0x55796110, 0xfa3df357, 0x7a7381ff, 0xd53713b8,
+    0xff8ba330, 0x50cf3177, 0xaaf2c220, 0x05b65067, 0x2f0ae0ef,
+    0x804e72a8, 0xf4e703fe, 0x5ba391b9, 0x711f2131, 0xde5bb376,
+    0x24664021, 0x8b22d266, 0xa19e62ee, 0x0edaf0a9, 0x8e948201,
+    0x21d01046, 0x0b6ca0ce, 0xa4283289, 0x5e15c1de, 0xf1515399,
+    0xdbede311, 0x74a97156, 0x32bf01bd, 0x9dfb93fa, 0xb7472372,
+    0x1803b135, 0xe23e4262, 0x4d7ad025, 0x67c660ad, 0xc882f2ea,
+    0x48cc8042, 0xe7881205, 0xcd34a28d, 0x627030ca, 0x984dc39d,
+    0x370951da, 0x1db5e152, 0xb2f17315, 0xc6580243, 0x691c9004,
+    0x43a0208c, 0xece4b2cb, 0x16d9419c, 0xb99dd3db, 0x93216353,
+    0x3c65f114, 0xbc2b83bc, 0x136f11fb, 0x39d3a173, 0x96973334,
+    0x6caac063, 0xc3ee5224, 0xe952e2ac, 0x461670eb, 0x657e037a,
+    0xca3a913d, 0xe08621b5, 0x4fc2b3f2, 0xb5ff40a5, 0x1abbd2e2,
+    0x3007626a, 0x9f43f02d, 0x1f0d8285, 0xb04910c2, 0x9af5a04a,
+    0x35b1320d, 0xcf8cc15a, 0x60c8531d, 0x4a74e395, 0xe53071d2,
+    0x91990084, 0x3edd92c3, 0x1461224b, 0xbb25b00c, 0x4118435b,
+    0xee5cd11c, 0xc4e06194, 0x6ba4f3d3, 0xebea817b, 0x44ae133c,
+    0x6e12a3b4, 0xc15631f3, 0x3b6bc2a4, 0x942f50e3, 0xbe93e06b,
+    0x11d7722c, 0x57c102c7, 0xf8859080, 0xd2392008, 0x7d7db24f,
+    0x87404118, 0x2804d35f, 0x02b863d7, 0xadfcf190, 0x2db28338,
+    0x82f6117f, 0xa84aa1f7, 0x070e33b0, 0xfd33c0e7, 0x527752a0,
+    0x78cbe228, 0xd78f706f, 0xa3260139, 0x0c62937e, 0x26de23f6,
+    0x899ab1b1, 0x73a742e6, 0xdce3d0a1, 0xf65f6029, 0x591bf26e,
+    0xd95580c6, 0x76111281, 0x5cada209, 0xf3e9304e, 0x09d4c319,
+    0xa690515e, 0x8c2ce1d6, 0x23687391, 0xcafc06f4, 0x65b894b3,
+    0x4f04243b, 0xe040b67c, 0x1a7d452b, 0xb539d76c, 0x9f8567e4,
+    0x30c1f5a3, 0xb08f870b, 0x1fcb154c, 0x3577a5c4, 0x9a333783,
+    0x600ec4d4, 0xcf4a5693, 0xe5f6e61b, 0x4ab2745c, 0x3e1b050a,
+    0x915f974d, 0xbbe327c5, 0x14a7b582, 0xee9a46d5, 0x41ded492,
+    0x6b62641a, 0xc426f65d, 0x446884f5, 0xeb2c16b2, 0xc190a63a,
+    0x6ed4347d, 0x94e9c72a, 0x3bad556d, 0x1111e5e5, 0xbe5577a2,
+    0xf8430749, 0x5707950e, 0x7dbb2586, 0xd2ffb7c1, 0x28c24496,
+    0x8786d6d1, 0xad3a6659, 0x027ef41e, 0x823086b6, 0x2d7414f1,
+    0x07c8a479, 0xa88c363e, 0x52b1c569, 0xfdf5572e, 0xd749e7a6,
+    0x780d75e1, 0x0ca404b7, 0xa3e096f0, 0x895c2678, 0x2618b43f,
+    0xdc254768, 0x7361d52f, 0x59dd65a7, 0xf699f7e0, 0x76d78548,
+    0xd993170f, 0xf32fa787, 0x5c6b35c0, 0xa656c697, 0x091254d0,
+    0x23aee458, 0x8cea761f, 0xaf82058e, 0x00c697c9, 0x2a7a2741,
+    0x853eb506, 0x7f034651, 0xd047d416, 0xfafb649e, 0x55bff6d9,
+    0xd5f18471, 0x7ab51636, 0x5009a6be, 0xff4d34f9, 0x0570c7ae,
+    0xaa3455e9, 0x8088e561, 0x2fcc7726, 0x5b650670, 0xf4219437,
+    0xde9d24bf, 0x71d9b6f8, 0x8be445af, 0x24a0d7e8, 0x0e1c6760,
+    0xa158f527, 0x2116878f, 0x8e5215c8, 0xa4eea540, 0x0baa3707,
+    0xf197c450, 0x5ed35617, 0x746fe69f, 0xdb2b74d8, 0x9d3d0433,
+    0x32799674, 0x18c526fc, 0xb781b4bb, 0x4dbc47ec, 0xe2f8d5ab,
+    0xc8446523, 0x6700f764, 0xe74e85cc, 0x480a178b, 0x62b6a703,
+    0xcdf23544, 0x37cfc613, 0x988b5454, 0xb237e4dc, 0x1d73769b,
+    0x69da07cd, 0xc69e958a, 0xec222502, 0x4366b745, 0xb95b4412,
+    0x161fd655, 0x3ca366dd, 0x93e7f49a, 0x13a98632, 0xbced1475,
+    0x9651a4fd, 0x391536ba, 0xc328c5ed, 0x6c6c57aa, 0x46d0e722,
+    0xe9947565},
+   {0x00000000, 0x4e890ba9, 0x9d121752, 0xd39b1cfb, 0xe15528e5,
+    0xafdc234c, 0x7c473fb7, 0x32ce341e, 0x19db578b, 0x57525c22,
+    0x84c940d9, 0xca404b70, 0xf88e7f6e, 0xb60774c7, 0x659c683c,
+    0x2b156395, 0x33b6af16, 0x7d3fa4bf, 0xaea4b844, 0xe02db3ed,
+    0xd2e387f3, 0x9c6a8c5a, 0x4ff190a1, 0x01789b08, 0x2a6df89d,
+    0x64e4f334, 0xb77fefcf, 0xf9f6e466, 0xcb38d078, 0x85b1dbd1,
+    0x562ac72a, 0x18a3cc83, 0x676d5e2c, 0x29e45585, 0xfa7f497e,
+    0xb4f642d7, 0x863876c9, 0xc8b17d60, 0x1b2a619b, 0x55a36a32,
+    0x7eb609a7, 0x303f020e, 0xe3a41ef5, 0xad2d155c, 0x9fe32142,
+    0xd16a2aeb, 0x02f13610, 0x4c783db9, 0x54dbf13a, 0x1a52fa93,
+    0xc9c9e668, 0x8740edc1, 0xb58ed9df, 0xfb07d276, 0x289cce8d,
+    0x6615c524, 0x4d00a6b1, 0x0389ad18, 0xd012b1e3, 0x9e9bba4a,
+    0xac558e54, 0xe2dc85fd, 0x31479906, 0x7fce92af, 0xcedabc58,
+    0x8053b7f1, 0x53c8ab0a, 0x1d41a0a3, 0x2f8f94bd, 0x61069f14,
+    0xb29d83ef, 0xfc148846, 0xd701ebd3, 0x9988e07a, 0x4a13fc81,
+    0x049af728, 0x3654c336, 0x78ddc89f, 0xab46d464, 0xe5cfdfcd,
+    0xfd6c134e, 0xb3e518e7, 0x607e041c, 0x2ef70fb5, 0x1c393bab,
+    0x52b03002, 0x812b2cf9, 0xcfa22750, 0xe4b744c5, 0xaa3e4f6c,
+    0x79a55397, 0x372c583e, 0x05e26c20, 0x4b6b6789, 0x98f07b72,
+    0xd67970db, 0xa9b7e274, 0xe73ee9dd, 0x34a5f526, 0x7a2cfe8f,
+    0x48e2ca91, 0x066bc138, 0xd5f0ddc3, 0x9b79d66a, 0xb06cb5ff,
+    0xfee5be56, 0x2d7ea2ad, 0x63f7a904, 0x51399d1a, 0x1fb096b3,
+    0xcc2b8a48, 0x82a281e1, 0x9a014d62, 0xd48846cb, 0x07135a30,
+    0x499a5199, 0x7b546587, 0x35dd6e2e, 0xe64672d5, 0xa8cf797c,
+    0x83da1ae9, 0xcd531140, 0x1ec80dbb, 0x50410612, 0x628f320c,
+    0x2c0639a5, 0xff9d255e, 0xb1142ef7, 0x46c47ef1, 0x084d7558,
+    0xdbd669a3, 0x955f620a, 0xa7915614, 0xe9185dbd, 0x3a834146,
+    0x740a4aef, 0x5f1f297a, 0x119622d3, 0xc20d3e28, 0x8c843581,
+    0xbe4a019f, 0xf0c30a36, 0x235816cd, 0x6dd11d64, 0x7572d1e7,
+    0x3bfbda4e, 0xe860c6b5, 0xa6e9cd1c, 0x9427f902, 0xdaaef2ab,
+    0x0935ee50, 0x47bce5f9, 0x6ca9866c, 0x22208dc5, 0xf1bb913e,
+    0xbf329a97, 0x8dfcae89, 0xc375a520, 0x10eeb9db, 0x5e67b272,
+    0x21a920dd, 0x6f202b74, 0xbcbb378f, 0xf2323c26, 0xc0fc0838,
+    0x8e750391, 0x5dee1f6a, 0x136714c3, 0x38727756, 0x76fb7cff,
+    0xa5606004, 0xebe96bad, 0xd9275fb3, 0x97ae541a, 0x443548e1,
+    0x0abc4348, 0x121f8fcb, 0x5c968462, 0x8f0d9899, 0xc1849330,
+    0xf34aa72e, 0xbdc3ac87, 0x6e58b07c, 0x20d1bbd5, 0x0bc4d840,
+    0x454dd3e9, 0x96d6cf12, 0xd85fc4bb, 0xea91f0a5, 0xa418fb0c,
+    0x7783e7f7, 0x390aec5e, 0x881ec2a9, 0xc697c900, 0x150cd5fb,
+    0x5b85de52, 0x694bea4c, 0x27c2e1e5, 0xf459fd1e, 0xbad0f6b7,
+    0x91c59522, 0xdf4c9e8b, 0x0cd78270, 0x425e89d9, 0x7090bdc7,
+    0x3e19b66e, 0xed82aa95, 0xa30ba13c, 0xbba86dbf, 0xf5216616,
+    0x26ba7aed, 0x68337144, 0x5afd455a, 0x14744ef3, 0xc7ef5208,
+    0x896659a1, 0xa2733a34, 0xecfa319d, 0x3f612d66, 0x71e826cf,
+    0x432612d1, 0x0daf1978, 0xde340583, 0x90bd0e2a, 0xef739c85,
+    0xa1fa972c, 0x72618bd7, 0x3ce8807e, 0x0e26b460, 0x40afbfc9,
+    0x9334a332, 0xddbda89b, 0xf6a8cb0e, 0xb821c0a7, 0x6bbadc5c,
+    0x2533d7f5, 0x17fde3eb, 0x5974e842, 0x8aeff4b9, 0xc466ff10,
+    0xdcc53393, 0x924c383a, 0x41d724c1, 0x0f5e2f68, 0x3d901b76,
+    0x731910df, 0xa0820c24, 0xee0b078d, 0xc51e6418, 0x8b976fb1,
+    0x580c734a, 0x168578e3, 0x244b4cfd, 0x6ac24754, 0xb9595baf,
+    0xf7d05006},
+   {0x00000000, 0x8d88fde2, 0xc060fd85, 0x4de80067, 0x5bb0fd4b,
+    0xd63800a9, 0x9bd000ce, 0x1658fd2c, 0xb761fa96, 0x3ae90774,
+    0x77010713, 0xfa89faf1, 0xecd107dd, 0x6159fa3f, 0x2cb1fa58,
+    0xa13907ba, 0xb5b2f36d, 0x383a0e8f, 0x75d20ee8, 0xf85af30a,
+    0xee020e26, 0x638af3c4, 0x2e62f3a3, 0xa3ea0e41, 0x02d309fb,
+    0x8f5bf419, 0xc2b3f47e, 0x4f3b099c, 0x5963f4b0, 0xd4eb0952,
+    0x99030935, 0x148bf4d7, 0xb014e09b, 0x3d9c1d79, 0x70741d1e,
+    0xfdfce0fc, 0xeba41dd0, 0x662ce032, 0x2bc4e055, 0xa64c1db7,
+    0x07751a0d, 0x8afde7ef, 0xc715e788, 0x4a9d1a6a, 0x5cc5e746,
+    0xd14d1aa4, 0x9ca51ac3, 0x112de721, 0x05a613f6, 0x882eee14,
+    0xc5c6ee73, 0x484e1391, 0x5e16eebd, 0xd39e135f, 0x9e761338,
+    0x13feeeda, 0xb2c7e960, 0x3f4f1482, 0x72a714e5, 0xff2fe907,
+    0xe977142b, 0x64ffe9c9, 0x2917e9ae, 0xa49f144c, 0xbb58c777,
+    0x36d03a95, 0x7b383af2, 0xf6b0c710, 0xe0e83a3c, 0x6d60c7de,
+    0x2088c7b9, 0xad003a5b, 0x0c393de1, 0x81b1c003, 0xcc59c064,
+    0x41d13d86, 0x5789c0aa, 0xda013d48, 0x97e93d2f, 0x1a61c0cd,
+    0x0eea341a, 0x8362c9f8, 0xce8ac99f, 0x4302347d, 0x555ac951,
+    0xd8d234b3, 0x953a34d4, 0x18b2c936, 0xb98bce8c, 0x3403336e,
+    0x79eb3309, 0xf463ceeb, 0xe23b33c7, 0x6fb3ce25, 0x225bce42,
+    0xafd333a0, 0x0b4c27ec, 0x86c4da0e, 0xcb2cda69, 0x46a4278b,
+    0x50fcdaa7, 0xdd742745, 0x909c2722, 0x1d14dac0, 0xbc2ddd7a,
+    0x31a52098, 0x7c4d20ff, 0xf1c5dd1d, 0xe79d2031, 0x6a15ddd3,
+    0x27fdddb4, 0xaa752056, 0xbefed481, 0x33762963, 0x7e9e2904,
+    0xf316d4e6, 0xe54e29ca, 0x68c6d428, 0x252ed44f, 0xa8a629ad,
+    0x099f2e17, 0x8417d3f5, 0xc9ffd392, 0x44772e70, 0x522fd35c,
+    0xdfa72ebe, 0x924f2ed9, 0x1fc7d33b, 0xadc088af, 0x2048754d,
+    0x6da0752a, 0xe02888c8, 0xf67075e4, 0x7bf88806, 0x36108861,
+    0xbb987583, 0x1aa17239, 0x97298fdb, 0xdac18fbc, 0x5749725e,
+    0x41118f72, 0xcc997290, 0x817172f7, 0x0cf98f15, 0x18727bc2,
+    0x95fa8620, 0xd8128647, 0x559a7ba5, 0x43c28689, 0xce4a7b6b,
+    0x83a27b0c, 0x0e2a86ee, 0xaf138154, 0x229b7cb6, 0x6f737cd1,
+    0xe2fb8133, 0xf4a37c1f, 0x792b81fd, 0x34c3819a, 0xb94b7c78,
+    0x1dd46834, 0x905c95d6, 0xddb495b1, 0x503c6853, 0x4664957f,
+    0xcbec689d, 0x860468fa, 0x0b8c9518, 0xaab592a2, 0x273d6f40,
+    0x6ad56f27, 0xe75d92c5, 0xf1056fe9, 0x7c8d920b, 0x3165926c,
+    0xbced6f8e, 0xa8669b59, 0x25ee66bb, 0x680666dc, 0xe58e9b3e,
+    0xf3d66612, 0x7e5e9bf0, 0x33b69b97, 0xbe3e6675, 0x1f0761cf,
+    0x928f9c2d, 0xdf679c4a, 0x52ef61a8, 0x44b79c84, 0xc93f6166,
+    0x84d76101, 0x095f9ce3, 0x16984fd8, 0x9b10b23a, 0xd6f8b25d,
+    0x5b704fbf, 0x4d28b293, 0xc0a04f71, 0x8d484f16, 0x00c0b2f4,
+    0xa1f9b54e, 0x2c7148ac, 0x619948cb, 0xec11b529, 0xfa494805,
+    0x77c1b5e7, 0x3a29b580, 0xb7a14862, 0xa32abcb5, 0x2ea24157,
+    0x634a4130, 0xeec2bcd2, 0xf89a41fe, 0x7512bc1c, 0x38fabc7b,
+    0xb5724199, 0x144b4623, 0x99c3bbc1, 0xd42bbba6, 0x59a34644,
+    0x4ffbbb68, 0xc273468a, 0x8f9b46ed, 0x0213bb0f, 0xa68caf43,
+    0x2b0452a1, 0x66ec52c6, 0xeb64af24, 0xfd3c5208, 0x70b4afea,
+    0x3d5caf8d, 0xb0d4526f, 0x11ed55d5, 0x9c65a837, 0xd18da850,
+    0x5c0555b2, 0x4a5da89e, 0xc7d5557c, 0x8a3d551b, 0x07b5a8f9,
+    0x133e5c2e, 0x9eb6a1cc, 0xd35ea1ab, 0x5ed65c49, 0x488ea165,
+    0xc5065c87, 0x88ee5ce0, 0x0566a102, 0xa45fa6b8, 0x29d75b5a,
+    0x643f5b3d, 0xe9b7a6df, 0xffef5bf3, 0x7267a611, 0x3f8fa676,
+    0xb2075b94},
+   {0x00000000, 0x80f0171f, 0xda91287f, 0x5a613f60, 0x6e5356bf,
+    0xeea341a0, 0xb4c27ec0, 0x343269df, 0xdca6ad7e, 0x5c56ba61,
+    0x06378501, 0x86c7921e, 0xb2f5fbc1, 0x3205ecde, 0x6864d3be,
+    0xe894c4a1, 0x623c5cbd, 0xe2cc4ba2, 0xb8ad74c2, 0x385d63dd,
+    0x0c6f0a02, 0x8c9f1d1d, 0xd6fe227d, 0x560e3562, 0xbe9af1c3,
+    0x3e6ae6dc, 0x640bd9bc, 0xe4fbcea3, 0xd0c9a77c, 0x5039b063,
+    0x0a588f03, 0x8aa8981c, 0xc478b97a, 0x4488ae65, 0x1ee99105,
+    0x9e19861a, 0xaa2befc5, 0x2adbf8da, 0x70bac7ba, 0xf04ad0a5,
+    0x18de1404, 0x982e031b, 0xc24f3c7b, 0x42bf2b64, 0x768d42bb,
+    0xf67d55a4, 0xac1c6ac4, 0x2cec7ddb, 0xa644e5c7, 0x26b4f2d8,
+    0x7cd5cdb8, 0xfc25daa7, 0xc817b378, 0x48e7a467, 0x12869b07,
+    0x92768c18, 0x7ae248b9, 0xfa125fa6, 0xa07360c6, 0x208377d9,
+    0x14b11e06, 0x94410919, 0xce203679, 0x4ed02166, 0x538074b5,
+    0xd37063aa, 0x89115cca, 0x09e14bd5, 0x3dd3220a, 0xbd233515,
+    0xe7420a75, 0x67b21d6a, 0x8f26d9cb, 0x0fd6ced4, 0x55b7f1b4,
+    0xd547e6ab, 0xe1758f74, 0x6185986b, 0x3be4a70b, 0xbb14b014,
+    0x31bc2808, 0xb14c3f17, 0xeb2d0077, 0x6bdd1768, 0x5fef7eb7,
+    0xdf1f69a8, 0x857e56c8, 0x058e41d7, 0xed1a8576, 0x6dea9269,
+    0x378bad09, 0xb77bba16, 0x8349d3c9, 0x03b9c4d6, 0x59d8fbb6,
+    0xd928eca9, 0x97f8cdcf, 0x1708dad0, 0x4d69e5b0, 0xcd99f2af,
+    0xf9ab9b70, 0x795b8c6f, 0x233ab30f, 0xa3caa410, 0x4b5e60b1,
+    0xcbae77ae, 0x91cf48ce, 0x113f5fd1, 0x250d360e, 0xa5fd2111,
+    0xff9c1e71, 0x7f6c096e, 0xf5c49172, 0x7534866d, 0x2f55b90d,
+    0xafa5ae12, 0x9b97c7cd, 0x1b67d0d2, 0x4106efb2, 0xc1f6f8ad,
+    0x29623c0c, 0xa9922b13, 0xf3f31473, 0x7303036c, 0x47316ab3,
+    0xc7c17dac, 0x9da042cc, 0x1d5055d3, 0xa700e96a, 0x27f0fe75,
+    0x7d91c115, 0xfd61d60a, 0xc953bfd5, 0x49a3a8ca, 0x13c297aa,
+    0x933280b5, 0x7ba64414, 0xfb56530b, 0xa1376c6b, 0x21c77b74,
+    0x15f512ab, 0x950505b4, 0xcf643ad4, 0x4f942dcb, 0xc53cb5d7,
+    0x45cca2c8, 0x1fad9da8, 0x9f5d8ab7, 0xab6fe368, 0x2b9ff477,
+    0x71fecb17, 0xf10edc08, 0x199a18a9, 0x996a0fb6, 0xc30b30d6,
+    0x43fb27c9, 0x77c94e16, 0xf7395909, 0xad586669, 0x2da87176,
+    0x63785010, 0xe388470f, 0xb9e9786f, 0x39196f70, 0x0d2b06af,
+    0x8ddb11b0, 0xd7ba2ed0, 0x574a39cf, 0xbfdefd6e, 0x3f2eea71,
+    0x654fd511, 0xe5bfc20e, 0xd18dabd1, 0x517dbcce, 0x0b1c83ae,
+    0x8bec94b1, 0x01440cad, 0x81b41bb2, 0xdbd524d2, 0x5b2533cd,
+    0x6f175a12, 0xefe74d0d, 0xb586726d, 0x35766572, 0xdde2a1d3,
+    0x5d12b6cc, 0x077389ac, 0x87839eb3, 0xb3b1f76c, 0x3341e073,
+    0x6920df13, 0xe9d0c80c, 0xf4809ddf, 0x74708ac0, 0x2e11b5a0,
+    0xaee1a2bf, 0x9ad3cb60, 0x1a23dc7f, 0x4042e31f, 0xc0b2f400,
+    0x282630a1, 0xa8d627be, 0xf2b718de, 0x72470fc1, 0x4675661e,
+    0xc6857101, 0x9ce44e61, 0x1c14597e, 0x96bcc162, 0x164cd67d,
+    0x4c2de91d, 0xccddfe02, 0xf8ef97dd, 0x781f80c2, 0x227ebfa2,
+    0xa28ea8bd, 0x4a1a6c1c, 0xcaea7b03, 0x908b4463, 0x107b537c,
+    0x24493aa3, 0xa4b92dbc, 0xfed812dc, 0x7e2805c3, 0x30f824a5,
+    0xb00833ba, 0xea690cda, 0x6a991bc5, 0x5eab721a, 0xde5b6505,
+    0x843a5a65, 0x04ca4d7a, 0xec5e89db, 0x6cae9ec4, 0x36cfa1a4,
+    0xb63fb6bb, 0x820ddf64, 0x02fdc87b, 0x589cf71b, 0xd86ce004,
+    0x52c47818, 0xd2346f07, 0x88555067, 0x08a54778, 0x3c972ea7,
+    0xbc6739b8, 0xe60606d8, 0x66f611c7, 0x8e62d566, 0x0e92c279,
+    0x54f3fd19, 0xd403ea06, 0xe03183d9, 0x60c194c6, 0x3aa0aba6,
+    0xba50bcb9},
+   {0x00000000, 0x9570d495, 0xf190af6b, 0x64e07bfe, 0x38505897,
+    0xad208c02, 0xc9c0f7fc, 0x5cb02369, 0x70a0b12e, 0xe5d065bb,
+    0x81301e45, 0x1440cad0, 0x48f0e9b9, 0xdd803d2c, 0xb96046d2,
+    0x2c109247, 0xe141625c, 0x7431b6c9, 0x10d1cd37, 0x85a119a2,
+    0xd9113acb, 0x4c61ee5e, 0x288195a0, 0xbdf14135, 0x91e1d372,
+    0x049107e7, 0x60717c19, 0xf501a88c, 0xa9b18be5, 0x3cc15f70,
+    0x5821248e, 0xcd51f01b, 0x19f3c2f9, 0x8c83166c, 0xe8636d92,
+    0x7d13b907, 0x21a39a6e, 0xb4d34efb, 0xd0333505, 0x4543e190,
+    0x695373d7, 0xfc23a742, 0x98c3dcbc, 0x0db30829, 0x51032b40,
+    0xc473ffd5, 0xa093842b, 0x35e350be, 0xf8b2a0a5, 0x6dc27430,
+    0x09220fce, 0x9c52db5b, 0xc0e2f832, 0x55922ca7, 0x31725759,
+    0xa40283cc, 0x8812118b, 0x1d62c51e, 0x7982bee0, 0xecf26a75,
+    0xb042491c, 0x25329d89, 0x41d2e677, 0xd4a232e2, 0x33e785f2,
+    0xa6975167, 0xc2772a99, 0x5707fe0c, 0x0bb7dd65, 0x9ec709f0,
+    0xfa27720e, 0x6f57a69b, 0x434734dc, 0xd637e049, 0xb2d79bb7,
+    0x27a74f22, 0x7b176c4b, 0xee67b8de, 0x8a87c320, 0x1ff717b5,
+    0xd2a6e7ae, 0x47d6333b, 0x233648c5, 0xb6469c50, 0xeaf6bf39,
+    0x7f866bac, 0x1b661052, 0x8e16c4c7, 0xa2065680, 0x37768215,
+    0x5396f9eb, 0xc6e62d7e, 0x9a560e17, 0x0f26da82, 0x6bc6a17c,
+    0xfeb675e9, 0x2a14470b, 0xbf64939e, 0xdb84e860, 0x4ef43cf5,
+    0x12441f9c, 0x8734cb09, 0xe3d4b0f7, 0x76a46462, 0x5ab4f625,
+    0xcfc422b0, 0xab24594e, 0x3e548ddb, 0x62e4aeb2, 0xf7947a27,
+    0x937401d9, 0x0604d54c, 0xcb552557, 0x5e25f1c2, 0x3ac58a3c,
+    0xafb55ea9, 0xf3057dc0, 0x6675a955, 0x0295d2ab, 0x97e5063e,
+    0xbbf59479, 0x2e8540ec, 0x4a653b12, 0xdf15ef87, 0x83a5ccee,
+    0x16d5187b, 0x72356385, 0xe745b710, 0x67cf0be4, 0xf2bfdf71,
+    0x965fa48f, 0x032f701a, 0x5f9f5373, 0xcaef87e6, 0xae0ffc18,
+    0x3b7f288d, 0x176fbaca, 0x821f6e5f, 0xe6ff15a1, 0x738fc134,
+    0x2f3fe25d, 0xba4f36c8, 0xdeaf4d36, 0x4bdf99a3, 0x868e69b8,
+    0x13febd2d, 0x771ec6d3, 0xe26e1246, 0xbede312f, 0x2baee5ba,
+    0x4f4e9e44, 0xda3e4ad1, 0xf62ed896, 0x635e0c03, 0x07be77fd,
+    0x92cea368, 0xce7e8001, 0x5b0e5494, 0x3fee2f6a, 0xaa9efbff,
+    0x7e3cc91d, 0xeb4c1d88, 0x8fac6676, 0x1adcb2e3, 0x466c918a,
+    0xd31c451f, 0xb7fc3ee1, 0x228cea74, 0x0e9c7833, 0x9becaca6,
+    0xff0cd758, 0x6a7c03cd, 0x36cc20a4, 0xa3bcf431, 0xc75c8fcf,
+    0x522c5b5a, 0x9f7dab41, 0x0a0d7fd4, 0x6eed042a, 0xfb9dd0bf,
+    0xa72df3d6, 0x325d2743, 0x56bd5cbd, 0xc3cd8828, 0xefdd1a6f,
+    0x7aadcefa, 0x1e4db504, 0x8b3d6191, 0xd78d42f8, 0x42fd966d,
+    0x261ded93, 0xb36d3906, 0x54288e16, 0xc1585a83, 0xa5b8217d,
+    0x30c8f5e8, 0x6c78d681, 0xf9080214, 0x9de879ea, 0x0898ad7f,
+    0x24883f38, 0xb1f8ebad, 0xd5189053, 0x406844c6, 0x1cd867af,
+    0x89a8b33a, 0xed48c8c4, 0x78381c51, 0xb569ec4a, 0x201938df,
+    0x44f94321, 0xd18997b4, 0x8d39b4dd, 0x18496048, 0x7ca91bb6,
+    0xe9d9cf23, 0xc5c95d64, 0x50b989f1, 0x3459f20f, 0xa129269a,
+    0xfd9905f3, 0x68e9d166, 0x0c09aa98, 0x99797e0d, 0x4ddb4cef,
+    0xd8ab987a, 0xbc4be384, 0x293b3711, 0x758b1478, 0xe0fbc0ed,
+    0x841bbb13, 0x116b6f86, 0x3d7bfdc1, 0xa80b2954, 0xcceb52aa,
+    0x599b863f, 0x052ba556, 0x905b71c3, 0xf4bb0a3d, 0x61cbdea8,
+    0xac9a2eb3, 0x39eafa26, 0x5d0a81d8, 0xc87a554d, 0x94ca7624,
+    0x01baa2b1, 0x655ad94f, 0xf02a0dda, 0xdc3a9f9d, 0x494a4b08,
+    0x2daa30f6, 0xb8dae463, 0xe46ac70a, 0x711a139f, 0x15fa6861,
+    0x808abcf4},
+   {0x00000000, 0xcf9e17c8, 0x444d29d1, 0x8bd33e19, 0x889a53a2,
+    0x4704446a, 0xccd77a73, 0x03496dbb, 0xca45a105, 0x05dbb6cd,
+    0x8e0888d4, 0x41969f1c, 0x42dff2a7, 0x8d41e56f, 0x0692db76,
+    0xc90cccbe, 0x4ffa444b, 0x80645383, 0x0bb76d9a, 0xc4297a52,
+    0xc76017e9, 0x08fe0021, 0x832d3e38, 0x4cb329f0, 0x85bfe54e,
+    0x4a21f286, 0xc1f2cc9f, 0x0e6cdb57, 0x0d25b6ec, 0xc2bba124,
+    0x49689f3d, 0x86f688f5, 0x9ff48896, 0x506a9f5e, 0xdbb9a147,
+    0x1427b68f, 0x176edb34, 0xd8f0ccfc, 0x5323f2e5, 0x9cbde52d,
+    0x55b12993, 0x9a2f3e5b, 0x11fc0042, 0xde62178a, 0xdd2b7a31,
+    0x12b56df9, 0x996653e0, 0x56f84428, 0xd00eccdd, 0x1f90db15,
+    0x9443e50c, 0x5bddf2c4, 0x58949f7f, 0x970a88b7, 0x1cd9b6ae,
+    0xd347a166, 0x1a4b6dd8, 0xd5d57a10, 0x5e064409, 0x919853c1,
+    0x92d13e7a, 0x5d4f29b2, 0xd69c17ab, 0x19020063, 0xe498176d,
+    0x2b0600a5, 0xa0d53ebc, 0x6f4b2974, 0x6c0244cf, 0xa39c5307,
+    0x284f6d1e, 0xe7d17ad6, 0x2eddb668, 0xe143a1a0, 0x6a909fb9,
+    0xa50e8871, 0xa647e5ca, 0x69d9f202, 0xe20acc1b, 0x2d94dbd3,
+    0xab625326, 0x64fc44ee, 0xef2f7af7, 0x20b16d3f, 0x23f80084,
+    0xec66174c, 0x67b52955, 0xa82b3e9d, 0x6127f223, 0xaeb9e5eb,
+    0x256adbf2, 0xeaf4cc3a, 0xe9bda181, 0x2623b649, 0xadf08850,
+    0x626e9f98, 0x7b6c9ffb, 0xb4f28833, 0x3f21b62a, 0xf0bfa1e2,
+    0xf3f6cc59, 0x3c68db91, 0xb7bbe588, 0x7825f240, 0xb1293efe,
+    0x7eb72936, 0xf564172f, 0x3afa00e7, 0x39b36d5c, 0xf62d7a94,
+    0x7dfe448d, 0xb2605345, 0x3496dbb0, 0xfb08cc78, 0x70dbf261,
+    0xbf45e5a9, 0xbc0c8812, 0x73929fda, 0xf841a1c3, 0x37dfb60b,
+    0xfed37ab5, 0x314d6d7d, 0xba9e5364, 0x750044ac, 0x76492917,
+    0xb9d73edf, 0x320400c6, 0xfd9a170e, 0x1241289b, 0xdddf3f53,
+    0x560c014a, 0x99921682, 0x9adb7b39, 0x55456cf1, 0xde9652e8,
+    0x11084520, 0xd804899e, 0x179a9e56, 0x9c49a04f, 0x53d7b787,
+    0x509eda3c, 0x9f00cdf4, 0x14d3f3ed, 0xdb4de425, 0x5dbb6cd0,
+    0x92257b18, 0x19f64501, 0xd66852c9, 0xd5213f72, 0x1abf28ba,
+    0x916c16a3, 0x5ef2016b, 0x97fecdd5, 0x5860da1d, 0xd3b3e404,
+    0x1c2df3cc, 0x1f649e77, 0xd0fa89bf, 0x5b29b7a6, 0x94b7a06e,
+    0x8db5a00d, 0x422bb7c5, 0xc9f889dc, 0x06669e14, 0x052ff3af,
+    0xcab1e467, 0x4162da7e, 0x8efccdb6, 0x47f00108, 0x886e16c0,
+    0x03bd28d9, 0xcc233f11, 0xcf6a52aa, 0x00f44562, 0x8b277b7b,
+    0x44b96cb3, 0xc24fe446, 0x0dd1f38e, 0x8602cd97, 0x499cda5f,
+    0x4ad5b7e4, 0x854ba02c, 0x0e989e35, 0xc10689fd, 0x080a4543,
+    0xc794528b, 0x4c476c92, 0x83d97b5a, 0x809016e1, 0x4f0e0129,
+    0xc4dd3f30, 0x0b4328f8, 0xf6d93ff6, 0x3947283e, 0xb2941627,
+    0x7d0a01ef, 0x7e436c54, 0xb1dd7b9c, 0x3a0e4585, 0xf590524d,
+    0x3c9c9ef3, 0xf302893b, 0x78d1b722, 0xb74fa0ea, 0xb406cd51,
+    0x7b98da99, 0xf04be480, 0x3fd5f348, 0xb9237bbd, 0x76bd6c75,
+    0xfd6e526c, 0x32f045a4, 0x31b9281f, 0xfe273fd7, 0x75f401ce,
+    0xba6a1606, 0x7366dab8, 0xbcf8cd70, 0x372bf369, 0xf8b5e4a1,
+    0xfbfc891a, 0x34629ed2, 0xbfb1a0cb, 0x702fb703, 0x692db760,
+    0xa6b3a0a8, 0x2d609eb1, 0xe2fe8979, 0xe1b7e4c2, 0x2e29f30a,
+    0xa5facd13, 0x6a64dadb, 0xa3681665, 0x6cf601ad, 0xe7253fb4,
+    0x28bb287c, 0x2bf245c7, 0xe46c520f, 0x6fbf6c16, 0xa0217bde,
+    0x26d7f32b, 0xe949e4e3, 0x629adafa, 0xad04cd32, 0xae4da089,
+    0x61d3b741, 0xea008958, 0x259e9e90, 0xec92522e, 0x230c45e6,
+    0xa8df7bff, 0x67416c37, 0x6408018c, 0xab961644, 0x2045285d,
+    0xefdb3f95},
+   {0x00000000, 0x24825136, 0x4904a26c, 0x6d86f35a, 0x920944d8,
+    0xb68b15ee, 0xdb0de6b4, 0xff8fb782, 0xff638ff1, 0xdbe1dec7,
+    0xb6672d9d, 0x92e57cab, 0x6d6acb29, 0x49e89a1f, 0x246e6945,
+    0x00ec3873, 0x25b619a3, 0x01344895, 0x6cb2bbcf, 0x4830eaf9,
+    0xb7bf5d7b, 0x933d0c4d, 0xfebbff17, 0xda39ae21, 0xdad59652,
+    0xfe57c764, 0x93d1343e, 0xb7536508, 0x48dcd28a, 0x6c5e83bc,
+    0x01d870e6, 0x255a21d0, 0x4b6c3346, 0x6fee6270, 0x0268912a,
+    0x26eac01c, 0xd965779e, 0xfde726a8, 0x9061d5f2, 0xb4e384c4,
+    0xb40fbcb7, 0x908ded81, 0xfd0b1edb, 0xd9894fed, 0x2606f86f,
+    0x0284a959, 0x6f025a03, 0x4b800b35, 0x6eda2ae5, 0x4a587bd3,
+    0x27de8889, 0x035cd9bf, 0xfcd36e3d, 0xd8513f0b, 0xb5d7cc51,
+    0x91559d67, 0x91b9a514, 0xb53bf422, 0xd8bd0778, 0xfc3f564e,
+    0x03b0e1cc, 0x2732b0fa, 0x4ab443a0, 0x6e361296, 0x96d8668c,
+    0xb25a37ba, 0xdfdcc4e0, 0xfb5e95d6, 0x04d12254, 0x20537362,
+    0x4dd58038, 0x6957d10e, 0x69bbe97d, 0x4d39b84b, 0x20bf4b11,
+    0x043d1a27, 0xfbb2ada5, 0xdf30fc93, 0xb2b60fc9, 0x96345eff,
+    0xb36e7f2f, 0x97ec2e19, 0xfa6add43, 0xdee88c75, 0x21673bf7,
+    0x05e56ac1, 0x6863999b, 0x4ce1c8ad, 0x4c0df0de, 0x688fa1e8,
+    0x050952b2, 0x218b0384, 0xde04b406, 0xfa86e530, 0x9700166a,
+    0xb382475c, 0xddb455ca, 0xf93604fc, 0x94b0f7a6, 0xb032a690,
+    0x4fbd1112, 0x6b3f4024, 0x06b9b37e, 0x223be248, 0x22d7da3b,
+    0x06558b0d, 0x6bd37857, 0x4f512961, 0xb0de9ee3, 0x945ccfd5,
+    0xf9da3c8f, 0xdd586db9, 0xf8024c69, 0xdc801d5f, 0xb106ee05,
+    0x9584bf33, 0x6a0b08b1, 0x4e895987, 0x230faadd, 0x078dfbeb,
+    0x0761c398, 0x23e392ae, 0x4e6561f4, 0x6ae730c2, 0x95688740,
+    0xb1ead676, 0xdc6c252c, 0xf8ee741a, 0xf6c1cb59, 0xd2439a6f,
+    0xbfc56935, 0x9b473803, 0x64c88f81, 0x404adeb7, 0x2dcc2ded,
+    0x094e7cdb, 0x09a244a8, 0x2d20159e, 0x40a6e6c4, 0x6424b7f2,
+    0x9bab0070, 0xbf295146, 0xd2afa21c, 0xf62df32a, 0xd377d2fa,
+    0xf7f583cc, 0x9a737096, 0xbef121a0, 0x417e9622, 0x65fcc714,
+    0x087a344e, 0x2cf86578, 0x2c145d0b, 0x08960c3d, 0x6510ff67,
+    0x4192ae51, 0xbe1d19d3, 0x9a9f48e5, 0xf719bbbf, 0xd39bea89,
+    0xbdadf81f, 0x992fa929, 0xf4a95a73, 0xd02b0b45, 0x2fa4bcc7,
+    0x0b26edf1, 0x66a01eab, 0x42224f9d, 0x42ce77ee, 0x664c26d8,
+    0x0bcad582, 0x2f4884b4, 0xd0c73336, 0xf4456200, 0x99c3915a,
+    0xbd41c06c, 0x981be1bc, 0xbc99b08a, 0xd11f43d0, 0xf59d12e6,
+    0x0a12a564, 0x2e90f452, 0x43160708, 0x6794563e, 0x67786e4d,
+    0x43fa3f7b, 0x2e7ccc21, 0x0afe9d17, 0xf5712a95, 0xd1f37ba3,
+    0xbc7588f9, 0x98f7d9cf, 0x6019add5, 0x449bfce3, 0x291d0fb9,
+    0x0d9f5e8f, 0xf210e90d, 0xd692b83b, 0xbb144b61, 0x9f961a57,
+    0x9f7a2224, 0xbbf87312, 0xd67e8048, 0xf2fcd17e, 0x0d7366fc,
+    0x29f137ca, 0x4477c490, 0x60f595a6, 0x45afb476, 0x612de540,
+    0x0cab161a, 0x2829472c, 0xd7a6f0ae, 0xf324a198, 0x9ea252c2,
+    0xba2003f4, 0xbacc3b87, 0x9e4e6ab1, 0xf3c899eb, 0xd74ac8dd,
+    0x28c57f5f, 0x0c472e69, 0x61c1dd33, 0x45438c05, 0x2b759e93,
+    0x0ff7cfa5, 0x62713cff, 0x46f36dc9, 0xb97cda4b, 0x9dfe8b7d,
+    0xf0787827, 0xd4fa2911, 0xd4161162, 0xf0944054, 0x9d12b30e,
+    0xb990e238, 0x461f55ba, 0x629d048c, 0x0f1bf7d6, 0x2b99a6e0,
+    0x0ec38730, 0x2a41d606, 0x47c7255c, 0x6345746a, 0x9ccac3e8,
+    0xb84892de, 0xd5ce6184, 0xf14c30b2, 0xf1a008c1, 0xd52259f7,
+    0xb8a4aaad, 0x9c26fb9b, 0x63a94c19, 0x472b1d2f, 0x2aadee75,
+    0x0e2fbf43},
+   {0x00000000, 0x36f290f3, 0x6de521e6, 0x5b17b115, 0xdbca43cc,
+    0xed38d33f, 0xb62f622a, 0x80ddf2d9, 0x6ce581d9, 0x5a17112a,
+    0x0100a03f, 0x37f230cc, 0xb72fc215, 0x81dd52e6, 0xdacae3f3,
+    0xec387300, 0xd9cb03b2, 0xef399341, 0xb42e2254, 0x82dcb2a7,
+    0x0201407e, 0x34f3d08d, 0x6fe46198, 0x5916f16b, 0xb52e826b,
+    0x83dc1298, 0xd8cba38d, 0xee39337e, 0x6ee4c1a7, 0x58165154,
+    0x0301e041, 0x35f370b2, 0x68e70125, 0x5e1591d6, 0x050220c3,
+    0x33f0b030, 0xb32d42e9, 0x85dfd21a, 0xdec8630f, 0xe83af3fc,
+    0x040280fc, 0x32f0100f, 0x69e7a11a, 0x5f1531e9, 0xdfc8c330,
+    0xe93a53c3, 0xb22de2d6, 0x84df7225, 0xb12c0297, 0x87de9264,
+    0xdcc92371, 0xea3bb382, 0x6ae6415b, 0x5c14d1a8, 0x070360bd,
+    0x31f1f04e, 0xddc9834e, 0xeb3b13bd, 0xb02ca2a8, 0x86de325b,
+    0x0603c082, 0x30f15071, 0x6be6e164, 0x5d147197, 0xd1ce024a,
+    0xe73c92b9, 0xbc2b23ac, 0x8ad9b35f, 0x0a044186, 0x3cf6d175,
+    0x67e16060, 0x5113f093, 0xbd2b8393, 0x8bd91360, 0xd0cea275,
+    0xe63c3286, 0x66e1c05f, 0x501350ac, 0x0b04e1b9, 0x3df6714a,
+    0x080501f8, 0x3ef7910b, 0x65e0201e, 0x5312b0ed, 0xd3cf4234,
+    0xe53dd2c7, 0xbe2a63d2, 0x88d8f321, 0x64e08021, 0x521210d2,
+    0x0905a1c7, 0x3ff73134, 0xbf2ac3ed, 0x89d8531e, 0xd2cfe20b,
+    0xe43d72f8, 0xb929036f, 0x8fdb939c, 0xd4cc2289, 0xe23eb27a,
+    0x62e340a3, 0x5411d050, 0x0f066145, 0x39f4f1b6, 0xd5cc82b6,
+    0xe33e1245, 0xb829a350, 0x8edb33a3, 0x0e06c17a, 0x38f45189,
+    0x63e3e09c, 0x5511706f, 0x60e200dd, 0x5610902e, 0x0d07213b,
+    0x3bf5b1c8, 0xbb284311, 0x8ddad3e2, 0xd6cd62f7, 0xe03ff204,
+    0x0c078104, 0x3af511f7, 0x61e2a0e2, 0x57103011, 0xd7cdc2c8,
+    0xe13f523b, 0xba28e32e, 0x8cda73dd, 0x78ed02d5, 0x4e1f9226,
+    0x15082333, 0x23fab3c0, 0xa3274119, 0x95d5d1ea, 0xcec260ff,
+    0xf830f00c, 0x1408830c, 0x22fa13ff, 0x79eda2ea, 0x4f1f3219,
+    0xcfc2c0c0, 0xf9305033, 0xa227e126, 0x94d571d5, 0xa1260167,
+    0x97d49194, 0xccc32081, 0xfa31b072, 0x7aec42ab, 0x4c1ed258,
+    0x1709634d, 0x21fbf3be, 0xcdc380be, 0xfb31104d, 0xa026a158,
+    0x96d431ab, 0x1609c372, 0x20fb5381, 0x7bece294, 0x4d1e7267,
+    0x100a03f0, 0x26f89303, 0x7def2216, 0x4b1db2e5, 0xcbc0403c,
+    0xfd32d0cf, 0xa62561da, 0x90d7f129, 0x7cef8229, 0x4a1d12da,
+    0x110aa3cf, 0x27f8333c, 0xa725c1e5, 0x91d75116, 0xcac0e003,
+    0xfc3270f0, 0xc9c10042, 0xff3390b1, 0xa42421a4, 0x92d6b157,
+    0x120b438e, 0x24f9d37d, 0x7fee6268, 0x491cf29b, 0xa524819b,
+    0x93d61168, 0xc8c1a07d, 0xfe33308e, 0x7eeec257, 0x481c52a4,
+    0x130be3b1, 0x25f97342, 0xa923009f, 0x9fd1906c, 0xc4c62179,
+    0xf234b18a, 0x72e94353, 0x441bd3a0, 0x1f0c62b5, 0x29fef246,
+    0xc5c68146, 0xf33411b5, 0xa823a0a0, 0x9ed13053, 0x1e0cc28a,
+    0x28fe5279, 0x73e9e36c, 0x451b739f, 0x70e8032d, 0x461a93de,
+    0x1d0d22cb, 0x2bffb238, 0xab2240e1, 0x9dd0d012, 0xc6c76107,
+    0xf035f1f4, 0x1c0d82f4, 0x2aff1207, 0x71e8a312, 0x471a33e1,
+    0xc7c7c138, 0xf13551cb, 0xaa22e0de, 0x9cd0702d, 0xc1c401ba,
+    0xf7369149, 0xac21205c, 0x9ad3b0af, 0x1a0e4276, 0x2cfcd285,
+    0x77eb6390, 0x4119f363, 0xad218063, 0x9bd31090, 0xc0c4a185,
+    0xf6363176, 0x76ebc3af, 0x4019535c, 0x1b0ee249, 0x2dfc72ba,
+    0x180f0208, 0x2efd92fb, 0x75ea23ee, 0x4318b31d, 0xc3c541c4,
+    0xf537d137, 0xae206022, 0x98d2f0d1, 0x74ea83d1, 0x42181322,
+    0x190fa237, 0x2ffd32c4, 0xaf20c01d, 0x99d250ee, 0xc2c5e1fb,
+    0xf4377108}};
+
+local const z_word_t FAR crc_braid_big_table[][256] = {
+   {0x0000000000000000, 0xf390f23600000000, 0xe621e56d00000000,
+    0x15b1175b00000000, 0xcc43cadb00000000, 0x3fd338ed00000000,
+    0x2a622fb600000000, 0xd9f2dd8000000000, 0xd981e56c00000000,
+    0x2a11175a00000000, 0x3fa0000100000000, 0xcc30f23700000000,
+    0x15c22fb700000000, 0xe652dd8100000000, 0xf3e3cada00000000,
+    0x007338ec00000000, 0xb203cbd900000000, 0x419339ef00000000,
+    0x54222eb400000000, 0xa7b2dc8200000000, 0x7e40010200000000,
+    0x8dd0f33400000000, 0x9861e46f00000000, 0x6bf1165900000000,
+    0x6b822eb500000000, 0x9812dc8300000000, 0x8da3cbd800000000,
+    0x7e3339ee00000000, 0xa7c1e46e00000000, 0x5451165800000000,
+    0x41e0010300000000, 0xb270f33500000000, 0x2501e76800000000,
+    0xd691155e00000000, 0xc320020500000000, 0x30b0f03300000000,
+    0xe9422db300000000, 0x1ad2df8500000000, 0x0f63c8de00000000,
+    0xfcf33ae800000000, 0xfc80020400000000, 0x0f10f03200000000,
+    0x1aa1e76900000000, 0xe931155f00000000, 0x30c3c8df00000000,
+    0xc3533ae900000000, 0xd6e22db200000000, 0x2572df8400000000,
+    0x97022cb100000000, 0x6492de8700000000, 0x7123c9dc00000000,
+    0x82b33bea00000000, 0x5b41e66a00000000, 0xa8d1145c00000000,
+    0xbd60030700000000, 0x4ef0f13100000000, 0x4e83c9dd00000000,
+    0xbd133beb00000000, 0xa8a22cb000000000, 0x5b32de8600000000,
+    0x82c0030600000000, 0x7150f13000000000, 0x64e1e66b00000000,
+    0x9771145d00000000, 0x4a02ced100000000, 0xb9923ce700000000,
+    0xac232bbc00000000, 0x5fb3d98a00000000, 0x8641040a00000000,
+    0x75d1f63c00000000, 0x6060e16700000000, 0x93f0135100000000,
+    0x93832bbd00000000, 0x6013d98b00000000, 0x75a2ced000000000,
+    0x86323ce600000000, 0x5fc0e16600000000, 0xac50135000000000,
+    0xb9e1040b00000000, 0x4a71f63d00000000, 0xf801050800000000,
+    0x0b91f73e00000000, 0x1e20e06500000000, 0xedb0125300000000,
+    0x3442cfd300000000, 0xc7d23de500000000, 0xd2632abe00000000,
+    0x21f3d88800000000, 0x2180e06400000000, 0xd210125200000000,
+    0xc7a1050900000000, 0x3431f73f00000000, 0xedc32abf00000000,
+    0x1e53d88900000000, 0x0be2cfd200000000, 0xf8723de400000000,
+    0x6f0329b900000000, 0x9c93db8f00000000, 0x8922ccd400000000,
+    0x7ab23ee200000000, 0xa340e36200000000, 0x50d0115400000000,
+    0x4561060f00000000, 0xb6f1f43900000000, 0xb682ccd500000000,
+    0x45123ee300000000, 0x50a329b800000000, 0xa333db8e00000000,
+    0x7ac1060e00000000, 0x8951f43800000000, 0x9ce0e36300000000,
+    0x6f70115500000000, 0xdd00e26000000000, 0x2e90105600000000,
+    0x3b21070d00000000, 0xc8b1f53b00000000, 0x114328bb00000000,
+    0xe2d3da8d00000000, 0xf762cdd600000000, 0x04f23fe000000000,
+    0x0481070c00000000, 0xf711f53a00000000, 0xe2a0e26100000000,
+    0x1130105700000000, 0xc8c2cdd700000000, 0x3b523fe100000000,
+    0x2ee328ba00000000, 0xdd73da8c00000000, 0xd502ed7800000000,
+    0x26921f4e00000000, 0x3323081500000000, 0xc0b3fa2300000000,
+    0x194127a300000000, 0xead1d59500000000, 0xff60c2ce00000000,
+    0x0cf030f800000000, 0x0c83081400000000, 0xff13fa2200000000,
+    0xeaa2ed7900000000, 0x19321f4f00000000, 0xc0c0c2cf00000000,
+    0x335030f900000000, 0x26e127a200000000, 0xd571d59400000000,
+    0x670126a100000000, 0x9491d49700000000, 0x8120c3cc00000000,
+    0x72b031fa00000000, 0xab42ec7a00000000, 0x58d21e4c00000000,
+    0x4d63091700000000, 0xbef3fb2100000000, 0xbe80c3cd00000000,
+    0x4d1031fb00000000, 0x58a126a000000000, 0xab31d49600000000,
+    0x72c3091600000000, 0x8153fb2000000000, 0x94e2ec7b00000000,
+    0x67721e4d00000000, 0xf0030a1000000000, 0x0393f82600000000,
+    0x1622ef7d00000000, 0xe5b21d4b00000000, 0x3c40c0cb00000000,
+    0xcfd032fd00000000, 0xda6125a600000000, 0x29f1d79000000000,
+    0x2982ef7c00000000, 0xda121d4a00000000, 0xcfa30a1100000000,
+    0x3c33f82700000000, 0xe5c125a700000000, 0x1651d79100000000,
+    0x03e0c0ca00000000, 0xf07032fc00000000, 0x4200c1c900000000,
+    0xb19033ff00000000, 0xa42124a400000000, 0x57b1d69200000000,
+    0x8e430b1200000000, 0x7dd3f92400000000, 0x6862ee7f00000000,
+    0x9bf21c4900000000, 0x9b8124a500000000, 0x6811d69300000000,
+    0x7da0c1c800000000, 0x8e3033fe00000000, 0x57c2ee7e00000000,
+    0xa4521c4800000000, 0xb1e30b1300000000, 0x4273f92500000000,
+    0x9f0023a900000000, 0x6c90d19f00000000, 0x7921c6c400000000,
+    0x8ab134f200000000, 0x5343e97200000000, 0xa0d31b4400000000,
+    0xb5620c1f00000000, 0x46f2fe2900000000, 0x4681c6c500000000,
+    0xb51134f300000000, 0xa0a023a800000000, 0x5330d19e00000000,
+    0x8ac20c1e00000000, 0x7952fe2800000000, 0x6ce3e97300000000,
+    0x9f731b4500000000, 0x2d03e87000000000, 0xde931a4600000000,
+    0xcb220d1d00000000, 0x38b2ff2b00000000, 0xe14022ab00000000,
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+    0x2213184200000000, 0x37a20f1900000000, 0xc432fd2f00000000,
+    0x1dc020af00000000, 0xee50d29900000000, 0xfbe1c5c200000000,
+    0x087137f400000000},
+   {0x0000000000000000, 0x3651822400000000, 0x6ca2044900000000,
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+    0x194ca96300000000, 0x2f1d2b4700000000, 0x75eead2a00000000,
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+    0xfd4c4b2400000000, 0x5447c26a00000000, 0xaf5b59b900000000,
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+    0xa8724e8000000000, 0xfe03e7f400000000, 0xb991a35b00000000,
+    0x31211f7100000000, 0x76b35bde00000000, 0x2140662400000000,
+    0x66d2228b00000000, 0xee629ea100000000, 0xa9f0da0e00000000,
+    0x0182948e00000000, 0x4610d02100000000, 0xcea06c0b00000000,
+    0x893228a400000000, 0xdec1155e00000000, 0x995351f100000000,
+    0x11e3eddb00000000, 0x5671a97400000000, 0xbd01bf3200000000,
+    0xfa93fb9d00000000, 0x722347b700000000, 0x35b1031800000000,
+    0x62423ee200000000, 0x25d07a4d00000000, 0xad60c66700000000,
+    0xeaf282c800000000, 0x4280cc4800000000, 0x051288e700000000,
+    0x8da234cd00000000, 0xca30706200000000, 0x9dc34d9800000000,
+    0xda51093700000000, 0x52e1b51d00000000, 0x1573f1b200000000,
+    0x430258c600000000, 0x04901c6900000000, 0x8c20a04300000000,
+    0xcbb2e4ec00000000, 0x9c41d91600000000, 0xdbd39db900000000,
+    0x5363219300000000, 0x14f1653c00000000, 0xbc832bbc00000000,
+    0xfb116f1300000000, 0x73a1d33900000000, 0x3433979600000000,
+    0x63c0aa6c00000000, 0x2452eec300000000, 0xace252e900000000,
+    0xeb70164600000000, 0x7a037e6500000000, 0x3d913aca00000000,
+    0xb52186e000000000, 0xf2b3c24f00000000, 0xa540ffb500000000,
+    0xe2d2bb1a00000000, 0x6a62073000000000, 0x2df0439f00000000,
+    0x85820d1f00000000, 0xc21049b000000000, 0x4aa0f59a00000000,
+    0x0d32b13500000000, 0x5ac18ccf00000000, 0x1d53c86000000000,
+    0x95e3744a00000000, 0xd27130e500000000, 0x8400999100000000,
+    0xc392dd3e00000000, 0x4b22611400000000, 0x0cb025bb00000000,
+    0x5b43184100000000, 0x1cd15cee00000000, 0x9461e0c400000000,
+    0xd3f3a46b00000000, 0x7b81eaeb00000000, 0x3c13ae4400000000,
+    0xb4a3126e00000000, 0xf33156c100000000, 0xa4c26b3b00000000,
+    0xe3502f9400000000, 0x6be093be00000000, 0x2c72d71100000000,
+    0xc702c15700000000, 0x809085f800000000, 0x082039d200000000,
+    0x4fb27d7d00000000, 0x1841408700000000, 0x5fd3042800000000,
+    0xd763b80200000000, 0x90f1fcad00000000, 0x3883b22d00000000,
+    0x7f11f68200000000, 0xf7a14aa800000000, 0xb0330e0700000000,
+    0xe7c033fd00000000, 0xa052775200000000, 0x28e2cb7800000000,
+    0x6f708fd700000000, 0x390126a300000000, 0x7e93620c00000000,
+    0xf623de2600000000, 0xb1b19a8900000000, 0xe642a77300000000,
+    0xa1d0e3dc00000000, 0x29605ff600000000, 0x6ef21b5900000000,
+    0xc68055d900000000, 0x8112117600000000, 0x09a2ad5c00000000,
+    0x4e30e9f300000000, 0x19c3d40900000000, 0x5e5190a600000000,
+    0xd6e12c8c00000000, 0x9173682300000000, 0xf406fcca00000000,
+    0xb394b86500000000, 0x3b24044f00000000, 0x7cb640e000000000,
+    0x2b457d1a00000000, 0x6cd739b500000000, 0xe467859f00000000,
+    0xa3f5c13000000000, 0x0b878fb000000000, 0x4c15cb1f00000000,
+    0xc4a5773500000000, 0x8337339a00000000, 0xd4c40e6000000000,
+    0x93564acf00000000, 0x1be6f6e500000000, 0x5c74b24a00000000,
+    0x0a051b3e00000000, 0x4d975f9100000000, 0xc527e3bb00000000,
+    0x82b5a71400000000, 0xd5469aee00000000, 0x92d4de4100000000,
+    0x1a64626b00000000, 0x5df626c400000000, 0xf584684400000000,
+    0xb2162ceb00000000, 0x3aa690c100000000, 0x7d34d46e00000000,
+    0x2ac7e99400000000, 0x6d55ad3b00000000, 0xe5e5111100000000,
+    0xa27755be00000000, 0x490743f800000000, 0x0e95075700000000,
+    0x8625bb7d00000000, 0xc1b7ffd200000000, 0x9644c22800000000,
+    0xd1d6868700000000, 0x59663aad00000000, 0x1ef47e0200000000,
+    0xb686308200000000, 0xf114742d00000000, 0x79a4c80700000000,
+    0x3e368ca800000000, 0x69c5b15200000000, 0x2e57f5fd00000000,
+    0xa6e749d700000000, 0xe1750d7800000000, 0xb704a40c00000000,
+    0xf096e0a300000000, 0x78265c8900000000, 0x3fb4182600000000,
+    0x684725dc00000000, 0x2fd5617300000000, 0xa765dd5900000000,
+    0xe0f799f600000000, 0x4885d77600000000, 0x0f1793d900000000,
+    0x87a72ff300000000, 0xc0356b5c00000000, 0x97c656a600000000,
+    0xd054120900000000, 0x58e4ae2300000000, 0x1f76ea8c00000000,
+    0x8e0582af00000000, 0xc997c60000000000, 0x41277a2a00000000,
+    0x06b53e8500000000, 0x5146037f00000000, 0x16d447d000000000,
+    0x9e64fbfa00000000, 0xd9f6bf5500000000, 0x7184f1d500000000,
+    0x3616b57a00000000, 0xbea6095000000000, 0xf9344dff00000000,
+    0xaec7700500000000, 0xe95534aa00000000, 0x61e5888000000000,
+    0x2677cc2f00000000, 0x7006655b00000000, 0x379421f400000000,
+    0xbf249dde00000000, 0xf8b6d97100000000, 0xaf45e48b00000000,
+    0xe8d7a02400000000, 0x60671c0e00000000, 0x27f558a100000000,
+    0x8f87162100000000, 0xc815528e00000000, 0x40a5eea400000000,
+    0x0737aa0b00000000, 0x50c497f100000000, 0x1756d35e00000000,
+    0x9fe66f7400000000, 0xd8742bdb00000000, 0x33043d9d00000000,
+    0x7496793200000000, 0xfc26c51800000000, 0xbbb481b700000000,
+    0xec47bc4d00000000, 0xabd5f8e200000000, 0x236544c800000000,
+    0x64f7006700000000, 0xcc854ee700000000, 0x8b170a4800000000,
+    0x03a7b66200000000, 0x4435f2cd00000000, 0x13c6cf3700000000,
+    0x54548b9800000000, 0xdce437b200000000, 0x9b76731d00000000,
+    0xcd07da6900000000, 0x8a959ec600000000, 0x022522ec00000000,
+    0x45b7664300000000, 0x12445bb900000000, 0x55d61f1600000000,
+    0xdd66a33c00000000, 0x9af4e79300000000, 0x3286a91300000000,
+    0x7514edbc00000000, 0xfda4519600000000, 0xba36153900000000,
+    0xedc528c300000000, 0xaa576c6c00000000, 0x22e7d04600000000,
+    0x657594e900000000}};
+
+#else /* W == 4 */
+
+local const z_crc_t FAR crc_braid_table[][256] = {
+   {0x00000000, 0x65673b46, 0xcace768c, 0xafa94dca, 0x4eedeb59,
+    0x2b8ad01f, 0x84239dd5, 0xe144a693, 0x9ddbd6b2, 0xf8bcedf4,
+    0x5715a03e, 0x32729b78, 0xd3363deb, 0xb65106ad, 0x19f84b67,
+    0x7c9f7021, 0xe0c6ab25, 0x85a19063, 0x2a08dda9, 0x4f6fe6ef,
+    0xae2b407c, 0xcb4c7b3a, 0x64e536f0, 0x01820db6, 0x7d1d7d97,
+    0x187a46d1, 0xb7d30b1b, 0xd2b4305d, 0x33f096ce, 0x5697ad88,
+    0xf93ee042, 0x9c59db04, 0x1afc500b, 0x7f9b6b4d, 0xd0322687,
+    0xb5551dc1, 0x5411bb52, 0x31768014, 0x9edfcdde, 0xfbb8f698,
+    0x872786b9, 0xe240bdff, 0x4de9f035, 0x288ecb73, 0xc9ca6de0,
+    0xacad56a6, 0x03041b6c, 0x6663202a, 0xfa3afb2e, 0x9f5dc068,
+    0x30f48da2, 0x5593b6e4, 0xb4d71077, 0xd1b02b31, 0x7e1966fb,
+    0x1b7e5dbd, 0x67e12d9c, 0x028616da, 0xad2f5b10, 0xc8486056,
+    0x290cc6c5, 0x4c6bfd83, 0xe3c2b049, 0x86a58b0f, 0x35f8a016,
+    0x509f9b50, 0xff36d69a, 0x9a51eddc, 0x7b154b4f, 0x1e727009,
+    0xb1db3dc3, 0xd4bc0685, 0xa82376a4, 0xcd444de2, 0x62ed0028,
+    0x078a3b6e, 0xe6ce9dfd, 0x83a9a6bb, 0x2c00eb71, 0x4967d037,
+    0xd53e0b33, 0xb0593075, 0x1ff07dbf, 0x7a9746f9, 0x9bd3e06a,
+    0xfeb4db2c, 0x511d96e6, 0x347aada0, 0x48e5dd81, 0x2d82e6c7,
+    0x822bab0d, 0xe74c904b, 0x060836d8, 0x636f0d9e, 0xccc64054,
+    0xa9a17b12, 0x2f04f01d, 0x4a63cb5b, 0xe5ca8691, 0x80adbdd7,
+    0x61e91b44, 0x048e2002, 0xab276dc8, 0xce40568e, 0xb2df26af,
+    0xd7b81de9, 0x78115023, 0x1d766b65, 0xfc32cdf6, 0x9955f6b0,
+    0x36fcbb7a, 0x539b803c, 0xcfc25b38, 0xaaa5607e, 0x050c2db4,
+    0x606b16f2, 0x812fb061, 0xe4488b27, 0x4be1c6ed, 0x2e86fdab,
+    0x52198d8a, 0x377eb6cc, 0x98d7fb06, 0xfdb0c040, 0x1cf466d3,
+    0x79935d95, 0xd63a105f, 0xb35d2b19, 0x6bf1402c, 0x0e967b6a,
+    0xa13f36a0, 0xc4580de6, 0x251cab75, 0x407b9033, 0xefd2ddf9,
+    0x8ab5e6bf, 0xf62a969e, 0x934dadd8, 0x3ce4e012, 0x5983db54,
+    0xb8c77dc7, 0xdda04681, 0x72090b4b, 0x176e300d, 0x8b37eb09,
+    0xee50d04f, 0x41f99d85, 0x249ea6c3, 0xc5da0050, 0xa0bd3b16,
+    0x0f1476dc, 0x6a734d9a, 0x16ec3dbb, 0x738b06fd, 0xdc224b37,
+    0xb9457071, 0x5801d6e2, 0x3d66eda4, 0x92cfa06e, 0xf7a89b28,
+    0x710d1027, 0x146a2b61, 0xbbc366ab, 0xdea45ded, 0x3fe0fb7e,
+    0x5a87c038, 0xf52e8df2, 0x9049b6b4, 0xecd6c695, 0x89b1fdd3,
+    0x2618b019, 0x437f8b5f, 0xa23b2dcc, 0xc75c168a, 0x68f55b40,
+    0x0d926006, 0x91cbbb02, 0xf4ac8044, 0x5b05cd8e, 0x3e62f6c8,
+    0xdf26505b, 0xba416b1d, 0x15e826d7, 0x708f1d91, 0x0c106db0,
+    0x697756f6, 0xc6de1b3c, 0xa3b9207a, 0x42fd86e9, 0x279abdaf,
+    0x8833f065, 0xed54cb23, 0x5e09e03a, 0x3b6edb7c, 0x94c796b6,
+    0xf1a0adf0, 0x10e40b63, 0x75833025, 0xda2a7def, 0xbf4d46a9,
+    0xc3d23688, 0xa6b50dce, 0x091c4004, 0x6c7b7b42, 0x8d3fddd1,
+    0xe858e697, 0x47f1ab5d, 0x2296901b, 0xbecf4b1f, 0xdba87059,
+    0x74013d93, 0x116606d5, 0xf022a046, 0x95459b00, 0x3aecd6ca,
+    0x5f8bed8c, 0x23149dad, 0x4673a6eb, 0xe9daeb21, 0x8cbdd067,
+    0x6df976f4, 0x089e4db2, 0xa7370078, 0xc2503b3e, 0x44f5b031,
+    0x21928b77, 0x8e3bc6bd, 0xeb5cfdfb, 0x0a185b68, 0x6f7f602e,
+    0xc0d62de4, 0xa5b116a2, 0xd92e6683, 0xbc495dc5, 0x13e0100f,
+    0x76872b49, 0x97c38dda, 0xf2a4b69c, 0x5d0dfb56, 0x386ac010,
+    0xa4331b14, 0xc1542052, 0x6efd6d98, 0x0b9a56de, 0xeadef04d,
+    0x8fb9cb0b, 0x201086c1, 0x4577bd87, 0x39e8cda6, 0x5c8ff6e0,
+    0xf326bb2a, 0x9641806c, 0x770526ff, 0x12621db9, 0xbdcb5073,
+    0xd8ac6b35},
+   {0x00000000, 0xd7e28058, 0x74b406f1, 0xa35686a9, 0xe9680de2,
+    0x3e8a8dba, 0x9ddc0b13, 0x4a3e8b4b, 0x09a11d85, 0xde439ddd,
+    0x7d151b74, 0xaaf79b2c, 0xe0c91067, 0x372b903f, 0x947d1696,
+    0x439f96ce, 0x13423b0a, 0xc4a0bb52, 0x67f63dfb, 0xb014bda3,
+    0xfa2a36e8, 0x2dc8b6b0, 0x8e9e3019, 0x597cb041, 0x1ae3268f,
+    0xcd01a6d7, 0x6e57207e, 0xb9b5a026, 0xf38b2b6d, 0x2469ab35,
+    0x873f2d9c, 0x50ddadc4, 0x26847614, 0xf166f64c, 0x523070e5,
+    0x85d2f0bd, 0xcfec7bf6, 0x180efbae, 0xbb587d07, 0x6cbafd5f,
+    0x2f256b91, 0xf8c7ebc9, 0x5b916d60, 0x8c73ed38, 0xc64d6673,
+    0x11afe62b, 0xb2f96082, 0x651be0da, 0x35c64d1e, 0xe224cd46,
+    0x41724bef, 0x9690cbb7, 0xdcae40fc, 0x0b4cc0a4, 0xa81a460d,
+    0x7ff8c655, 0x3c67509b, 0xeb85d0c3, 0x48d3566a, 0x9f31d632,
+    0xd50f5d79, 0x02eddd21, 0xa1bb5b88, 0x7659dbd0, 0x4d08ec28,
+    0x9aea6c70, 0x39bcead9, 0xee5e6a81, 0xa460e1ca, 0x73826192,
+    0xd0d4e73b, 0x07366763, 0x44a9f1ad, 0x934b71f5, 0x301df75c,
+    0xe7ff7704, 0xadc1fc4f, 0x7a237c17, 0xd975fabe, 0x0e977ae6,
+    0x5e4ad722, 0x89a8577a, 0x2afed1d3, 0xfd1c518b, 0xb722dac0,
+    0x60c05a98, 0xc396dc31, 0x14745c69, 0x57ebcaa7, 0x80094aff,
+    0x235fcc56, 0xf4bd4c0e, 0xbe83c745, 0x6961471d, 0xca37c1b4,
+    0x1dd541ec, 0x6b8c9a3c, 0xbc6e1a64, 0x1f389ccd, 0xc8da1c95,
+    0x82e497de, 0x55061786, 0xf650912f, 0x21b21177, 0x622d87b9,
+    0xb5cf07e1, 0x16998148, 0xc17b0110, 0x8b458a5b, 0x5ca70a03,
+    0xfff18caa, 0x28130cf2, 0x78cea136, 0xaf2c216e, 0x0c7aa7c7,
+    0xdb98279f, 0x91a6acd4, 0x46442c8c, 0xe512aa25, 0x32f02a7d,
+    0x716fbcb3, 0xa68d3ceb, 0x05dbba42, 0xd2393a1a, 0x9807b151,
+    0x4fe53109, 0xecb3b7a0, 0x3b5137f8, 0x9a11d850, 0x4df35808,
+    0xeea5dea1, 0x39475ef9, 0x7379d5b2, 0xa49b55ea, 0x07cdd343,
+    0xd02f531b, 0x93b0c5d5, 0x4452458d, 0xe704c324, 0x30e6437c,
+    0x7ad8c837, 0xad3a486f, 0x0e6ccec6, 0xd98e4e9e, 0x8953e35a,
+    0x5eb16302, 0xfde7e5ab, 0x2a0565f3, 0x603beeb8, 0xb7d96ee0,
+    0x148fe849, 0xc36d6811, 0x80f2fedf, 0x57107e87, 0xf446f82e,
+    0x23a47876, 0x699af33d, 0xbe787365, 0x1d2ef5cc, 0xcacc7594,
+    0xbc95ae44, 0x6b772e1c, 0xc821a8b5, 0x1fc328ed, 0x55fda3a6,
+    0x821f23fe, 0x2149a557, 0xf6ab250f, 0xb534b3c1, 0x62d63399,
+    0xc180b530, 0x16623568, 0x5c5cbe23, 0x8bbe3e7b, 0x28e8b8d2,
+    0xff0a388a, 0xafd7954e, 0x78351516, 0xdb6393bf, 0x0c8113e7,
+    0x46bf98ac, 0x915d18f4, 0x320b9e5d, 0xe5e91e05, 0xa67688cb,
+    0x71940893, 0xd2c28e3a, 0x05200e62, 0x4f1e8529, 0x98fc0571,
+    0x3baa83d8, 0xec480380, 0xd7193478, 0x00fbb420, 0xa3ad3289,
+    0x744fb2d1, 0x3e71399a, 0xe993b9c2, 0x4ac53f6b, 0x9d27bf33,
+    0xdeb829fd, 0x095aa9a5, 0xaa0c2f0c, 0x7deeaf54, 0x37d0241f,
+    0xe032a447, 0x436422ee, 0x9486a2b6, 0xc45b0f72, 0x13b98f2a,
+    0xb0ef0983, 0x670d89db, 0x2d330290, 0xfad182c8, 0x59870461,
+    0x8e658439, 0xcdfa12f7, 0x1a1892af, 0xb94e1406, 0x6eac945e,
+    0x24921f15, 0xf3709f4d, 0x502619e4, 0x87c499bc, 0xf19d426c,
+    0x267fc234, 0x8529449d, 0x52cbc4c5, 0x18f54f8e, 0xcf17cfd6,
+    0x6c41497f, 0xbba3c927, 0xf83c5fe9, 0x2fdedfb1, 0x8c885918,
+    0x5b6ad940, 0x1154520b, 0xc6b6d253, 0x65e054fa, 0xb202d4a2,
+    0xe2df7966, 0x353df93e, 0x966b7f97, 0x4189ffcf, 0x0bb77484,
+    0xdc55f4dc, 0x7f037275, 0xa8e1f22d, 0xeb7e64e3, 0x3c9ce4bb,
+    0x9fca6212, 0x4828e24a, 0x02166901, 0xd5f4e959, 0x76a26ff0,
+    0xa140efa8},
+   {0x00000000, 0xef52b6e1, 0x05d46b83, 0xea86dd62, 0x0ba8d706,
+    0xe4fa61e7, 0x0e7cbc85, 0xe12e0a64, 0x1751ae0c, 0xf80318ed,
+    0x1285c58f, 0xfdd7736e, 0x1cf9790a, 0xf3abcfeb, 0x192d1289,
+    0xf67fa468, 0x2ea35c18, 0xc1f1eaf9, 0x2b77379b, 0xc425817a,
+    0x250b8b1e, 0xca593dff, 0x20dfe09d, 0xcf8d567c, 0x39f2f214,
+    0xd6a044f5, 0x3c269997, 0xd3742f76, 0x325a2512, 0xdd0893f3,
+    0x378e4e91, 0xd8dcf870, 0x5d46b830, 0xb2140ed1, 0x5892d3b3,
+    0xb7c06552, 0x56ee6f36, 0xb9bcd9d7, 0x533a04b5, 0xbc68b254,
+    0x4a17163c, 0xa545a0dd, 0x4fc37dbf, 0xa091cb5e, 0x41bfc13a,
+    0xaeed77db, 0x446baab9, 0xab391c58, 0x73e5e428, 0x9cb752c9,
+    0x76318fab, 0x9963394a, 0x784d332e, 0x971f85cf, 0x7d9958ad,
+    0x92cbee4c, 0x64b44a24, 0x8be6fcc5, 0x616021a7, 0x8e329746,
+    0x6f1c9d22, 0x804e2bc3, 0x6ac8f6a1, 0x859a4040, 0xba8d7060,
+    0x55dfc681, 0xbf591be3, 0x500bad02, 0xb125a766, 0x5e771187,
+    0xb4f1cce5, 0x5ba37a04, 0xaddcde6c, 0x428e688d, 0xa808b5ef,
+    0x475a030e, 0xa674096a, 0x4926bf8b, 0xa3a062e9, 0x4cf2d408,
+    0x942e2c78, 0x7b7c9a99, 0x91fa47fb, 0x7ea8f11a, 0x9f86fb7e,
+    0x70d44d9f, 0x9a5290fd, 0x7500261c, 0x837f8274, 0x6c2d3495,
+    0x86abe9f7, 0x69f95f16, 0x88d75572, 0x6785e393, 0x8d033ef1,
+    0x62518810, 0xe7cbc850, 0x08997eb1, 0xe21fa3d3, 0x0d4d1532,
+    0xec631f56, 0x0331a9b7, 0xe9b774d5, 0x06e5c234, 0xf09a665c,
+    0x1fc8d0bd, 0xf54e0ddf, 0x1a1cbb3e, 0xfb32b15a, 0x146007bb,
+    0xfee6dad9, 0x11b46c38, 0xc9689448, 0x263a22a9, 0xccbcffcb,
+    0x23ee492a, 0xc2c0434e, 0x2d92f5af, 0xc71428cd, 0x28469e2c,
+    0xde393a44, 0x316b8ca5, 0xdbed51c7, 0x34bfe726, 0xd591ed42,
+    0x3ac35ba3, 0xd04586c1, 0x3f173020, 0xae6be681, 0x41395060,
+    0xabbf8d02, 0x44ed3be3, 0xa5c33187, 0x4a918766, 0xa0175a04,
+    0x4f45ece5, 0xb93a488d, 0x5668fe6c, 0xbcee230e, 0x53bc95ef,
+    0xb2929f8b, 0x5dc0296a, 0xb746f408, 0x581442e9, 0x80c8ba99,
+    0x6f9a0c78, 0x851cd11a, 0x6a4e67fb, 0x8b606d9f, 0x6432db7e,
+    0x8eb4061c, 0x61e6b0fd, 0x97991495, 0x78cba274, 0x924d7f16,
+    0x7d1fc9f7, 0x9c31c393, 0x73637572, 0x99e5a810, 0x76b71ef1,
+    0xf32d5eb1, 0x1c7fe850, 0xf6f93532, 0x19ab83d3, 0xf88589b7,
+    0x17d73f56, 0xfd51e234, 0x120354d5, 0xe47cf0bd, 0x0b2e465c,
+    0xe1a89b3e, 0x0efa2ddf, 0xefd427bb, 0x0086915a, 0xea004c38,
+    0x0552fad9, 0xdd8e02a9, 0x32dcb448, 0xd85a692a, 0x3708dfcb,
+    0xd626d5af, 0x3974634e, 0xd3f2be2c, 0x3ca008cd, 0xcadfaca5,
+    0x258d1a44, 0xcf0bc726, 0x205971c7, 0xc1777ba3, 0x2e25cd42,
+    0xc4a31020, 0x2bf1a6c1, 0x14e696e1, 0xfbb42000, 0x1132fd62,
+    0xfe604b83, 0x1f4e41e7, 0xf01cf706, 0x1a9a2a64, 0xf5c89c85,
+    0x03b738ed, 0xece58e0c, 0x0663536e, 0xe931e58f, 0x081fefeb,
+    0xe74d590a, 0x0dcb8468, 0xe2993289, 0x3a45caf9, 0xd5177c18,
+    0x3f91a17a, 0xd0c3179b, 0x31ed1dff, 0xdebfab1e, 0x3439767c,
+    0xdb6bc09d, 0x2d1464f5, 0xc246d214, 0x28c00f76, 0xc792b997,
+    0x26bcb3f3, 0xc9ee0512, 0x2368d870, 0xcc3a6e91, 0x49a02ed1,
+    0xa6f29830, 0x4c744552, 0xa326f3b3, 0x4208f9d7, 0xad5a4f36,
+    0x47dc9254, 0xa88e24b5, 0x5ef180dd, 0xb1a3363c, 0x5b25eb5e,
+    0xb4775dbf, 0x555957db, 0xba0be13a, 0x508d3c58, 0xbfdf8ab9,
+    0x670372c9, 0x8851c428, 0x62d7194a, 0x8d85afab, 0x6caba5cf,
+    0x83f9132e, 0x697fce4c, 0x862d78ad, 0x7052dcc5, 0x9f006a24,
+    0x7586b746, 0x9ad401a7, 0x7bfa0bc3, 0x94a8bd22, 0x7e2e6040,
+    0x917cd6a1},
+   {0x00000000, 0x87a6cb43, 0xd43c90c7, 0x539a5b84, 0x730827cf,
+    0xf4aeec8c, 0xa734b708, 0x20927c4b, 0xe6104f9e, 0x61b684dd,
+    0x322cdf59, 0xb58a141a, 0x95186851, 0x12bea312, 0x4124f896,
+    0xc68233d5, 0x1751997d, 0x90f7523e, 0xc36d09ba, 0x44cbc2f9,
+    0x6459beb2, 0xe3ff75f1, 0xb0652e75, 0x37c3e536, 0xf141d6e3,
+    0x76e71da0, 0x257d4624, 0xa2db8d67, 0x8249f12c, 0x05ef3a6f,
+    0x567561eb, 0xd1d3aaa8, 0x2ea332fa, 0xa905f9b9, 0xfa9fa23d,
+    0x7d39697e, 0x5dab1535, 0xda0dde76, 0x899785f2, 0x0e314eb1,
+    0xc8b37d64, 0x4f15b627, 0x1c8feda3, 0x9b2926e0, 0xbbbb5aab,
+    0x3c1d91e8, 0x6f87ca6c, 0xe821012f, 0x39f2ab87, 0xbe5460c4,
+    0xedce3b40, 0x6a68f003, 0x4afa8c48, 0xcd5c470b, 0x9ec61c8f,
+    0x1960d7cc, 0xdfe2e419, 0x58442f5a, 0x0bde74de, 0x8c78bf9d,
+    0xaceac3d6, 0x2b4c0895, 0x78d65311, 0xff709852, 0x5d4665f4,
+    0xdae0aeb7, 0x897af533, 0x0edc3e70, 0x2e4e423b, 0xa9e88978,
+    0xfa72d2fc, 0x7dd419bf, 0xbb562a6a, 0x3cf0e129, 0x6f6abaad,
+    0xe8cc71ee, 0xc85e0da5, 0x4ff8c6e6, 0x1c629d62, 0x9bc45621,
+    0x4a17fc89, 0xcdb137ca, 0x9e2b6c4e, 0x198da70d, 0x391fdb46,
+    0xbeb91005, 0xed234b81, 0x6a8580c2, 0xac07b317, 0x2ba17854,
+    0x783b23d0, 0xff9de893, 0xdf0f94d8, 0x58a95f9b, 0x0b33041f,
+    0x8c95cf5c, 0x73e5570e, 0xf4439c4d, 0xa7d9c7c9, 0x207f0c8a,
+    0x00ed70c1, 0x874bbb82, 0xd4d1e006, 0x53772b45, 0x95f51890,
+    0x1253d3d3, 0x41c98857, 0xc66f4314, 0xe6fd3f5f, 0x615bf41c,
+    0x32c1af98, 0xb56764db, 0x64b4ce73, 0xe3120530, 0xb0885eb4,
+    0x372e95f7, 0x17bce9bc, 0x901a22ff, 0xc380797b, 0x4426b238,
+    0x82a481ed, 0x05024aae, 0x5698112a, 0xd13eda69, 0xf1aca622,
+    0x760a6d61, 0x259036e5, 0xa236fda6, 0xba8ccbe8, 0x3d2a00ab,
+    0x6eb05b2f, 0xe916906c, 0xc984ec27, 0x4e222764, 0x1db87ce0,
+    0x9a1eb7a3, 0x5c9c8476, 0xdb3a4f35, 0x88a014b1, 0x0f06dff2,
+    0x2f94a3b9, 0xa83268fa, 0xfba8337e, 0x7c0ef83d, 0xaddd5295,
+    0x2a7b99d6, 0x79e1c252, 0xfe470911, 0xded5755a, 0x5973be19,
+    0x0ae9e59d, 0x8d4f2ede, 0x4bcd1d0b, 0xcc6bd648, 0x9ff18dcc,
+    0x1857468f, 0x38c53ac4, 0xbf63f187, 0xecf9aa03, 0x6b5f6140,
+    0x942ff912, 0x13893251, 0x401369d5, 0xc7b5a296, 0xe727dedd,
+    0x6081159e, 0x331b4e1a, 0xb4bd8559, 0x723fb68c, 0xf5997dcf,
+    0xa603264b, 0x21a5ed08, 0x01379143, 0x86915a00, 0xd50b0184,
+    0x52adcac7, 0x837e606f, 0x04d8ab2c, 0x5742f0a8, 0xd0e43beb,
+    0xf07647a0, 0x77d08ce3, 0x244ad767, 0xa3ec1c24, 0x656e2ff1,
+    0xe2c8e4b2, 0xb152bf36, 0x36f47475, 0x1666083e, 0x91c0c37d,
+    0xc25a98f9, 0x45fc53ba, 0xe7caae1c, 0x606c655f, 0x33f63edb,
+    0xb450f598, 0x94c289d3, 0x13644290, 0x40fe1914, 0xc758d257,
+    0x01dae182, 0x867c2ac1, 0xd5e67145, 0x5240ba06, 0x72d2c64d,
+    0xf5740d0e, 0xa6ee568a, 0x21489dc9, 0xf09b3761, 0x773dfc22,
+    0x24a7a7a6, 0xa3016ce5, 0x839310ae, 0x0435dbed, 0x57af8069,
+    0xd0094b2a, 0x168b78ff, 0x912db3bc, 0xc2b7e838, 0x4511237b,
+    0x65835f30, 0xe2259473, 0xb1bfcff7, 0x361904b4, 0xc9699ce6,
+    0x4ecf57a5, 0x1d550c21, 0x9af3c762, 0xba61bb29, 0x3dc7706a,
+    0x6e5d2bee, 0xe9fbe0ad, 0x2f79d378, 0xa8df183b, 0xfb4543bf,
+    0x7ce388fc, 0x5c71f4b7, 0xdbd73ff4, 0x884d6470, 0x0febaf33,
+    0xde38059b, 0x599eced8, 0x0a04955c, 0x8da25e1f, 0xad302254,
+    0x2a96e917, 0x790cb293, 0xfeaa79d0, 0x38284a05, 0xbf8e8146,
+    0xec14dac2, 0x6bb21181, 0x4b206dca, 0xcc86a689, 0x9f1cfd0d,
+    0x18ba364e}};
+
+local const z_word_t FAR crc_braid_big_table[][256] = {
+   {0x00000000, 0x43cba687, 0xc7903cd4, 0x845b9a53, 0xcf270873,
+    0x8cecaef4, 0x08b734a7, 0x4b7c9220, 0x9e4f10e6, 0xdd84b661,
+    0x59df2c32, 0x1a148ab5, 0x51681895, 0x12a3be12, 0x96f82441,
+    0xd53382c6, 0x7d995117, 0x3e52f790, 0xba096dc3, 0xf9c2cb44,
+    0xb2be5964, 0xf175ffe3, 0x752e65b0, 0x36e5c337, 0xe3d641f1,
+    0xa01de776, 0x24467d25, 0x678ddba2, 0x2cf14982, 0x6f3aef05,
+    0xeb617556, 0xa8aad3d1, 0xfa32a32e, 0xb9f905a9, 0x3da29ffa,
+    0x7e69397d, 0x3515ab5d, 0x76de0dda, 0xf2859789, 0xb14e310e,
+    0x647db3c8, 0x27b6154f, 0xa3ed8f1c, 0xe026299b, 0xab5abbbb,
+    0xe8911d3c, 0x6cca876f, 0x2f0121e8, 0x87abf239, 0xc46054be,
+    0x403bceed, 0x03f0686a, 0x488cfa4a, 0x0b475ccd, 0x8f1cc69e,
+    0xccd76019, 0x19e4e2df, 0x5a2f4458, 0xde74de0b, 0x9dbf788c,
+    0xd6c3eaac, 0x95084c2b, 0x1153d678, 0x529870ff, 0xf465465d,
+    0xb7aee0da, 0x33f57a89, 0x703edc0e, 0x3b424e2e, 0x7889e8a9,
+    0xfcd272fa, 0xbf19d47d, 0x6a2a56bb, 0x29e1f03c, 0xadba6a6f,
+    0xee71cce8, 0xa50d5ec8, 0xe6c6f84f, 0x629d621c, 0x2156c49b,
+    0x89fc174a, 0xca37b1cd, 0x4e6c2b9e, 0x0da78d19, 0x46db1f39,
+    0x0510b9be, 0x814b23ed, 0xc280856a, 0x17b307ac, 0x5478a12b,
+    0xd0233b78, 0x93e89dff, 0xd8940fdf, 0x9b5fa958, 0x1f04330b,
+    0x5ccf958c, 0x0e57e573, 0x4d9c43f4, 0xc9c7d9a7, 0x8a0c7f20,
+    0xc170ed00, 0x82bb4b87, 0x06e0d1d4, 0x452b7753, 0x9018f595,
+    0xd3d35312, 0x5788c941, 0x14436fc6, 0x5f3ffde6, 0x1cf45b61,
+    0x98afc132, 0xdb6467b5, 0x73ceb464, 0x300512e3, 0xb45e88b0,
+    0xf7952e37, 0xbce9bc17, 0xff221a90, 0x7b7980c3, 0x38b22644,
+    0xed81a482, 0xae4a0205, 0x2a119856, 0x69da3ed1, 0x22a6acf1,
+    0x616d0a76, 0xe5369025, 0xa6fd36a2, 0xe8cb8cba, 0xab002a3d,
+    0x2f5bb06e, 0x6c9016e9, 0x27ec84c9, 0x6427224e, 0xe07cb81d,
+    0xa3b71e9a, 0x76849c5c, 0x354f3adb, 0xb114a088, 0xf2df060f,
+    0xb9a3942f, 0xfa6832a8, 0x7e33a8fb, 0x3df80e7c, 0x9552ddad,
+    0xd6997b2a, 0x52c2e179, 0x110947fe, 0x5a75d5de, 0x19be7359,
+    0x9de5e90a, 0xde2e4f8d, 0x0b1dcd4b, 0x48d66bcc, 0xcc8df19f,
+    0x8f465718, 0xc43ac538, 0x87f163bf, 0x03aaf9ec, 0x40615f6b,
+    0x12f92f94, 0x51328913, 0xd5691340, 0x96a2b5c7, 0xddde27e7,
+    0x9e158160, 0x1a4e1b33, 0x5985bdb4, 0x8cb63f72, 0xcf7d99f5,
+    0x4b2603a6, 0x08eda521, 0x43913701, 0x005a9186, 0x84010bd5,
+    0xc7caad52, 0x6f607e83, 0x2cabd804, 0xa8f04257, 0xeb3be4d0,
+    0xa04776f0, 0xe38cd077, 0x67d74a24, 0x241ceca3, 0xf12f6e65,
+    0xb2e4c8e2, 0x36bf52b1, 0x7574f436, 0x3e086616, 0x7dc3c091,
+    0xf9985ac2, 0xba53fc45, 0x1caecae7, 0x5f656c60, 0xdb3ef633,
+    0x98f550b4, 0xd389c294, 0x90426413, 0x1419fe40, 0x57d258c7,
+    0x82e1da01, 0xc12a7c86, 0x4571e6d5, 0x06ba4052, 0x4dc6d272,
+    0x0e0d74f5, 0x8a56eea6, 0xc99d4821, 0x61379bf0, 0x22fc3d77,
+    0xa6a7a724, 0xe56c01a3, 0xae109383, 0xeddb3504, 0x6980af57,
+    0x2a4b09d0, 0xff788b16, 0xbcb32d91, 0x38e8b7c2, 0x7b231145,
+    0x305f8365, 0x739425e2, 0xf7cfbfb1, 0xb4041936, 0xe69c69c9,
+    0xa557cf4e, 0x210c551d, 0x62c7f39a, 0x29bb61ba, 0x6a70c73d,
+    0xee2b5d6e, 0xade0fbe9, 0x78d3792f, 0x3b18dfa8, 0xbf4345fb,
+    0xfc88e37c, 0xb7f4715c, 0xf43fd7db, 0x70644d88, 0x33afeb0f,
+    0x9b0538de, 0xd8ce9e59, 0x5c95040a, 0x1f5ea28d, 0x542230ad,
+    0x17e9962a, 0x93b20c79, 0xd079aafe, 0x054a2838, 0x46818ebf,
+    0xc2da14ec, 0x8111b26b, 0xca6d204b, 0x89a686cc, 0x0dfd1c9f,
+    0x4e36ba18},
+   {0x00000000, 0xe1b652ef, 0x836bd405, 0x62dd86ea, 0x06d7a80b,
+    0xe761fae4, 0x85bc7c0e, 0x640a2ee1, 0x0cae5117, 0xed1803f8,
+    0x8fc58512, 0x6e73d7fd, 0x0a79f91c, 0xebcfabf3, 0x89122d19,
+    0x68a47ff6, 0x185ca32e, 0xf9eaf1c1, 0x9b37772b, 0x7a8125c4,
+    0x1e8b0b25, 0xff3d59ca, 0x9de0df20, 0x7c568dcf, 0x14f2f239,
+    0xf544a0d6, 0x9799263c, 0x762f74d3, 0x12255a32, 0xf39308dd,
+    0x914e8e37, 0x70f8dcd8, 0x30b8465d, 0xd10e14b2, 0xb3d39258,
+    0x5265c0b7, 0x366fee56, 0xd7d9bcb9, 0xb5043a53, 0x54b268bc,
+    0x3c16174a, 0xdda045a5, 0xbf7dc34f, 0x5ecb91a0, 0x3ac1bf41,
+    0xdb77edae, 0xb9aa6b44, 0x581c39ab, 0x28e4e573, 0xc952b79c,
+    0xab8f3176, 0x4a396399, 0x2e334d78, 0xcf851f97, 0xad58997d,
+    0x4ceecb92, 0x244ab464, 0xc5fce68b, 0xa7216061, 0x4697328e,
+    0x229d1c6f, 0xc32b4e80, 0xa1f6c86a, 0x40409a85, 0x60708dba,
+    0x81c6df55, 0xe31b59bf, 0x02ad0b50, 0x66a725b1, 0x8711775e,
+    0xe5ccf1b4, 0x047aa35b, 0x6cdedcad, 0x8d688e42, 0xefb508a8,
+    0x0e035a47, 0x6a0974a6, 0x8bbf2649, 0xe962a0a3, 0x08d4f24c,
+    0x782c2e94, 0x999a7c7b, 0xfb47fa91, 0x1af1a87e, 0x7efb869f,
+    0x9f4dd470, 0xfd90529a, 0x1c260075, 0x74827f83, 0x95342d6c,
+    0xf7e9ab86, 0x165ff969, 0x7255d788, 0x93e38567, 0xf13e038d,
+    0x10885162, 0x50c8cbe7, 0xb17e9908, 0xd3a31fe2, 0x32154d0d,
+    0x561f63ec, 0xb7a93103, 0xd574b7e9, 0x34c2e506, 0x5c669af0,
+    0xbdd0c81f, 0xdf0d4ef5, 0x3ebb1c1a, 0x5ab132fb, 0xbb076014,
+    0xd9dae6fe, 0x386cb411, 0x489468c9, 0xa9223a26, 0xcbffbccc,
+    0x2a49ee23, 0x4e43c0c2, 0xaff5922d, 0xcd2814c7, 0x2c9e4628,
+    0x443a39de, 0xa58c6b31, 0xc751eddb, 0x26e7bf34, 0x42ed91d5,
+    0xa35bc33a, 0xc18645d0, 0x2030173f, 0x81e66bae, 0x60503941,
+    0x028dbfab, 0xe33bed44, 0x8731c3a5, 0x6687914a, 0x045a17a0,
+    0xe5ec454f, 0x8d483ab9, 0x6cfe6856, 0x0e23eebc, 0xef95bc53,
+    0x8b9f92b2, 0x6a29c05d, 0x08f446b7, 0xe9421458, 0x99bac880,
+    0x780c9a6f, 0x1ad11c85, 0xfb674e6a, 0x9f6d608b, 0x7edb3264,
+    0x1c06b48e, 0xfdb0e661, 0x95149997, 0x74a2cb78, 0x167f4d92,
+    0xf7c91f7d, 0x93c3319c, 0x72756373, 0x10a8e599, 0xf11eb776,
+    0xb15e2df3, 0x50e87f1c, 0x3235f9f6, 0xd383ab19, 0xb78985f8,
+    0x563fd717, 0x34e251fd, 0xd5540312, 0xbdf07ce4, 0x5c462e0b,
+    0x3e9ba8e1, 0xdf2dfa0e, 0xbb27d4ef, 0x5a918600, 0x384c00ea,
+    0xd9fa5205, 0xa9028edd, 0x48b4dc32, 0x2a695ad8, 0xcbdf0837,
+    0xafd526d6, 0x4e637439, 0x2cbef2d3, 0xcd08a03c, 0xa5acdfca,
+    0x441a8d25, 0x26c70bcf, 0xc7715920, 0xa37b77c1, 0x42cd252e,
+    0x2010a3c4, 0xc1a6f12b, 0xe196e614, 0x0020b4fb, 0x62fd3211,
+    0x834b60fe, 0xe7414e1f, 0x06f71cf0, 0x642a9a1a, 0x859cc8f5,
+    0xed38b703, 0x0c8ee5ec, 0x6e536306, 0x8fe531e9, 0xebef1f08,
+    0x0a594de7, 0x6884cb0d, 0x893299e2, 0xf9ca453a, 0x187c17d5,
+    0x7aa1913f, 0x9b17c3d0, 0xff1ded31, 0x1eabbfde, 0x7c763934,
+    0x9dc06bdb, 0xf564142d, 0x14d246c2, 0x760fc028, 0x97b992c7,
+    0xf3b3bc26, 0x1205eec9, 0x70d86823, 0x916e3acc, 0xd12ea049,
+    0x3098f2a6, 0x5245744c, 0xb3f326a3, 0xd7f90842, 0x364f5aad,
+    0x5492dc47, 0xb5248ea8, 0xdd80f15e, 0x3c36a3b1, 0x5eeb255b,
+    0xbf5d77b4, 0xdb575955, 0x3ae10bba, 0x583c8d50, 0xb98adfbf,
+    0xc9720367, 0x28c45188, 0x4a19d762, 0xabaf858d, 0xcfa5ab6c,
+    0x2e13f983, 0x4cce7f69, 0xad782d86, 0xc5dc5270, 0x246a009f,
+    0x46b78675, 0xa701d49a, 0xc30bfa7b, 0x22bda894, 0x40602e7e,
+    0xa1d67c91},
+   {0x00000000, 0x5880e2d7, 0xf106b474, 0xa98656a3, 0xe20d68e9,
+    0xba8d8a3e, 0x130bdc9d, 0x4b8b3e4a, 0x851da109, 0xdd9d43de,
+    0x741b157d, 0x2c9bf7aa, 0x6710c9e0, 0x3f902b37, 0x96167d94,
+    0xce969f43, 0x0a3b4213, 0x52bba0c4, 0xfb3df667, 0xa3bd14b0,
+    0xe8362afa, 0xb0b6c82d, 0x19309e8e, 0x41b07c59, 0x8f26e31a,
+    0xd7a601cd, 0x7e20576e, 0x26a0b5b9, 0x6d2b8bf3, 0x35ab6924,
+    0x9c2d3f87, 0xc4addd50, 0x14768426, 0x4cf666f1, 0xe5703052,
+    0xbdf0d285, 0xf67beccf, 0xaefb0e18, 0x077d58bb, 0x5ffdba6c,
+    0x916b252f, 0xc9ebc7f8, 0x606d915b, 0x38ed738c, 0x73664dc6,
+    0x2be6af11, 0x8260f9b2, 0xdae01b65, 0x1e4dc635, 0x46cd24e2,
+    0xef4b7241, 0xb7cb9096, 0xfc40aedc, 0xa4c04c0b, 0x0d461aa8,
+    0x55c6f87f, 0x9b50673c, 0xc3d085eb, 0x6a56d348, 0x32d6319f,
+    0x795d0fd5, 0x21dded02, 0x885bbba1, 0xd0db5976, 0x28ec084d,
+    0x706cea9a, 0xd9eabc39, 0x816a5eee, 0xcae160a4, 0x92618273,
+    0x3be7d4d0, 0x63673607, 0xadf1a944, 0xf5714b93, 0x5cf71d30,
+    0x0477ffe7, 0x4ffcc1ad, 0x177c237a, 0xbefa75d9, 0xe67a970e,
+    0x22d74a5e, 0x7a57a889, 0xd3d1fe2a, 0x8b511cfd, 0xc0da22b7,
+    0x985ac060, 0x31dc96c3, 0x695c7414, 0xa7caeb57, 0xff4a0980,
+    0x56cc5f23, 0x0e4cbdf4, 0x45c783be, 0x1d476169, 0xb4c137ca,
+    0xec41d51d, 0x3c9a8c6b, 0x641a6ebc, 0xcd9c381f, 0x951cdac8,
+    0xde97e482, 0x86170655, 0x2f9150f6, 0x7711b221, 0xb9872d62,
+    0xe107cfb5, 0x48819916, 0x10017bc1, 0x5b8a458b, 0x030aa75c,
+    0xaa8cf1ff, 0xf20c1328, 0x36a1ce78, 0x6e212caf, 0xc7a77a0c,
+    0x9f2798db, 0xd4aca691, 0x8c2c4446, 0x25aa12e5, 0x7d2af032,
+    0xb3bc6f71, 0xeb3c8da6, 0x42badb05, 0x1a3a39d2, 0x51b10798,
+    0x0931e54f, 0xa0b7b3ec, 0xf837513b, 0x50d8119a, 0x0858f34d,
+    0xa1dea5ee, 0xf95e4739, 0xb2d57973, 0xea559ba4, 0x43d3cd07,
+    0x1b532fd0, 0xd5c5b093, 0x8d455244, 0x24c304e7, 0x7c43e630,
+    0x37c8d87a, 0x6f483aad, 0xc6ce6c0e, 0x9e4e8ed9, 0x5ae35389,
+    0x0263b15e, 0xabe5e7fd, 0xf365052a, 0xb8ee3b60, 0xe06ed9b7,
+    0x49e88f14, 0x11686dc3, 0xdffef280, 0x877e1057, 0x2ef846f4,
+    0x7678a423, 0x3df39a69, 0x657378be, 0xccf52e1d, 0x9475ccca,
+    0x44ae95bc, 0x1c2e776b, 0xb5a821c8, 0xed28c31f, 0xa6a3fd55,
+    0xfe231f82, 0x57a54921, 0x0f25abf6, 0xc1b334b5, 0x9933d662,
+    0x30b580c1, 0x68356216, 0x23be5c5c, 0x7b3ebe8b, 0xd2b8e828,
+    0x8a380aff, 0x4e95d7af, 0x16153578, 0xbf9363db, 0xe713810c,
+    0xac98bf46, 0xf4185d91, 0x5d9e0b32, 0x051ee9e5, 0xcb8876a6,
+    0x93089471, 0x3a8ec2d2, 0x620e2005, 0x29851e4f, 0x7105fc98,
+    0xd883aa3b, 0x800348ec, 0x783419d7, 0x20b4fb00, 0x8932ada3,
+    0xd1b24f74, 0x9a39713e, 0xc2b993e9, 0x6b3fc54a, 0x33bf279d,
+    0xfd29b8de, 0xa5a95a09, 0x0c2f0caa, 0x54afee7d, 0x1f24d037,
+    0x47a432e0, 0xee226443, 0xb6a28694, 0x720f5bc4, 0x2a8fb913,
+    0x8309efb0, 0xdb890d67, 0x9002332d, 0xc882d1fa, 0x61048759,
+    0x3984658e, 0xf712facd, 0xaf92181a, 0x06144eb9, 0x5e94ac6e,
+    0x151f9224, 0x4d9f70f3, 0xe4192650, 0xbc99c487, 0x6c429df1,
+    0x34c27f26, 0x9d442985, 0xc5c4cb52, 0x8e4ff518, 0xd6cf17cf,
+    0x7f49416c, 0x27c9a3bb, 0xe95f3cf8, 0xb1dfde2f, 0x1859888c,
+    0x40d96a5b, 0x0b525411, 0x53d2b6c6, 0xfa54e065, 0xa2d402b2,
+    0x6679dfe2, 0x3ef93d35, 0x977f6b96, 0xcfff8941, 0x8474b70b,
+    0xdcf455dc, 0x7572037f, 0x2df2e1a8, 0xe3647eeb, 0xbbe49c3c,
+    0x1262ca9f, 0x4ae22848, 0x01691602, 0x59e9f4d5, 0xf06fa276,
+    0xa8ef40a1},
+   {0x00000000, 0x463b6765, 0x8c76ceca, 0xca4da9af, 0x59ebed4e,
+    0x1fd08a2b, 0xd59d2384, 0x93a644e1, 0xb2d6db9d, 0xf4edbcf8,
+    0x3ea01557, 0x789b7232, 0xeb3d36d3, 0xad0651b6, 0x674bf819,
+    0x21709f7c, 0x25abc6e0, 0x6390a185, 0xa9dd082a, 0xefe66f4f,
+    0x7c402bae, 0x3a7b4ccb, 0xf036e564, 0xb60d8201, 0x977d1d7d,
+    0xd1467a18, 0x1b0bd3b7, 0x5d30b4d2, 0xce96f033, 0x88ad9756,
+    0x42e03ef9, 0x04db599c, 0x0b50fc1a, 0x4d6b9b7f, 0x872632d0,
+    0xc11d55b5, 0x52bb1154, 0x14807631, 0xdecddf9e, 0x98f6b8fb,
+    0xb9862787, 0xffbd40e2, 0x35f0e94d, 0x73cb8e28, 0xe06dcac9,
+    0xa656adac, 0x6c1b0403, 0x2a206366, 0x2efb3afa, 0x68c05d9f,
+    0xa28df430, 0xe4b69355, 0x7710d7b4, 0x312bb0d1, 0xfb66197e,
+    0xbd5d7e1b, 0x9c2de167, 0xda168602, 0x105b2fad, 0x566048c8,
+    0xc5c60c29, 0x83fd6b4c, 0x49b0c2e3, 0x0f8ba586, 0x16a0f835,
+    0x509b9f50, 0x9ad636ff, 0xdced519a, 0x4f4b157b, 0x0970721e,
+    0xc33ddbb1, 0x8506bcd4, 0xa47623a8, 0xe24d44cd, 0x2800ed62,
+    0x6e3b8a07, 0xfd9dcee6, 0xbba6a983, 0x71eb002c, 0x37d06749,
+    0x330b3ed5, 0x753059b0, 0xbf7df01f, 0xf946977a, 0x6ae0d39b,
+    0x2cdbb4fe, 0xe6961d51, 0xa0ad7a34, 0x81dde548, 0xc7e6822d,
+    0x0dab2b82, 0x4b904ce7, 0xd8360806, 0x9e0d6f63, 0x5440c6cc,
+    0x127ba1a9, 0x1df0042f, 0x5bcb634a, 0x9186cae5, 0xd7bdad80,
+    0x441be961, 0x02208e04, 0xc86d27ab, 0x8e5640ce, 0xaf26dfb2,
+    0xe91db8d7, 0x23501178, 0x656b761d, 0xf6cd32fc, 0xb0f65599,
+    0x7abbfc36, 0x3c809b53, 0x385bc2cf, 0x7e60a5aa, 0xb42d0c05,
+    0xf2166b60, 0x61b02f81, 0x278b48e4, 0xedc6e14b, 0xabfd862e,
+    0x8a8d1952, 0xccb67e37, 0x06fbd798, 0x40c0b0fd, 0xd366f41c,
+    0x955d9379, 0x5f103ad6, 0x192b5db3, 0x2c40f16b, 0x6a7b960e,
+    0xa0363fa1, 0xe60d58c4, 0x75ab1c25, 0x33907b40, 0xf9ddd2ef,
+    0xbfe6b58a, 0x9e962af6, 0xd8ad4d93, 0x12e0e43c, 0x54db8359,
+    0xc77dc7b8, 0x8146a0dd, 0x4b0b0972, 0x0d306e17, 0x09eb378b,
+    0x4fd050ee, 0x859df941, 0xc3a69e24, 0x5000dac5, 0x163bbda0,
+    0xdc76140f, 0x9a4d736a, 0xbb3dec16, 0xfd068b73, 0x374b22dc,
+    0x717045b9, 0xe2d60158, 0xa4ed663d, 0x6ea0cf92, 0x289ba8f7,
+    0x27100d71, 0x612b6a14, 0xab66c3bb, 0xed5da4de, 0x7efbe03f,
+    0x38c0875a, 0xf28d2ef5, 0xb4b64990, 0x95c6d6ec, 0xd3fdb189,
+    0x19b01826, 0x5f8b7f43, 0xcc2d3ba2, 0x8a165cc7, 0x405bf568,
+    0x0660920d, 0x02bbcb91, 0x4480acf4, 0x8ecd055b, 0xc8f6623e,
+    0x5b5026df, 0x1d6b41ba, 0xd726e815, 0x911d8f70, 0xb06d100c,
+    0xf6567769, 0x3c1bdec6, 0x7a20b9a3, 0xe986fd42, 0xafbd9a27,
+    0x65f03388, 0x23cb54ed, 0x3ae0095e, 0x7cdb6e3b, 0xb696c794,
+    0xf0ada0f1, 0x630be410, 0x25308375, 0xef7d2ada, 0xa9464dbf,
+    0x8836d2c3, 0xce0db5a6, 0x04401c09, 0x427b7b6c, 0xd1dd3f8d,
+    0x97e658e8, 0x5dabf147, 0x1b909622, 0x1f4bcfbe, 0x5970a8db,
+    0x933d0174, 0xd5066611, 0x46a022f0, 0x009b4595, 0xcad6ec3a,
+    0x8ced8b5f, 0xad9d1423, 0xeba67346, 0x21ebdae9, 0x67d0bd8c,
+    0xf476f96d, 0xb24d9e08, 0x780037a7, 0x3e3b50c2, 0x31b0f544,
+    0x778b9221, 0xbdc63b8e, 0xfbfd5ceb, 0x685b180a, 0x2e607f6f,
+    0xe42dd6c0, 0xa216b1a5, 0x83662ed9, 0xc55d49bc, 0x0f10e013,
+    0x492b8776, 0xda8dc397, 0x9cb6a4f2, 0x56fb0d5d, 0x10c06a38,
+    0x141b33a4, 0x522054c1, 0x986dfd6e, 0xde569a0b, 0x4df0deea,
+    0x0bcbb98f, 0xc1861020, 0x87bd7745, 0xa6cde839, 0xe0f68f5c,
+    0x2abb26f3, 0x6c804196, 0xff260577, 0xb91d6212, 0x7350cbbd,
+    0x356bacd8}};
+
+#endif
+
+#endif
+
+#if N == 6
+
+#if W == 8
+
+local const z_crc_t FAR crc_braid_table[][256] = {
+   {0x00000000, 0x3db1ecdc, 0x7b63d9b8, 0x46d23564, 0xf6c7b370,
+    0xcb765fac, 0x8da46ac8, 0xb0158614, 0x36fe60a1, 0x0b4f8c7d,
+    0x4d9db919, 0x702c55c5, 0xc039d3d1, 0xfd883f0d, 0xbb5a0a69,
+    0x86ebe6b5, 0x6dfcc142, 0x504d2d9e, 0x169f18fa, 0x2b2ef426,
+    0x9b3b7232, 0xa68a9eee, 0xe058ab8a, 0xdde94756, 0x5b02a1e3,
+    0x66b34d3f, 0x2061785b, 0x1dd09487, 0xadc51293, 0x9074fe4f,
+    0xd6a6cb2b, 0xeb1727f7, 0xdbf98284, 0xe6486e58, 0xa09a5b3c,
+    0x9d2bb7e0, 0x2d3e31f4, 0x108fdd28, 0x565de84c, 0x6bec0490,
+    0xed07e225, 0xd0b60ef9, 0x96643b9d, 0xabd5d741, 0x1bc05155,
+    0x2671bd89, 0x60a388ed, 0x5d126431, 0xb60543c6, 0x8bb4af1a,
+    0xcd669a7e, 0xf0d776a2, 0x40c2f0b6, 0x7d731c6a, 0x3ba1290e,
+    0x0610c5d2, 0x80fb2367, 0xbd4acfbb, 0xfb98fadf, 0xc6291603,
+    0x763c9017, 0x4b8d7ccb, 0x0d5f49af, 0x30eea573, 0x6c820349,
+    0x5133ef95, 0x17e1daf1, 0x2a50362d, 0x9a45b039, 0xa7f45ce5,
+    0xe1266981, 0xdc97855d, 0x5a7c63e8, 0x67cd8f34, 0x211fba50,
+    0x1cae568c, 0xacbbd098, 0x910a3c44, 0xd7d80920, 0xea69e5fc,
+    0x017ec20b, 0x3ccf2ed7, 0x7a1d1bb3, 0x47acf76f, 0xf7b9717b,
+    0xca089da7, 0x8cdaa8c3, 0xb16b441f, 0x3780a2aa, 0x0a314e76,
+    0x4ce37b12, 0x715297ce, 0xc14711da, 0xfcf6fd06, 0xba24c862,
+    0x879524be, 0xb77b81cd, 0x8aca6d11, 0xcc185875, 0xf1a9b4a9,
+    0x41bc32bd, 0x7c0dde61, 0x3adfeb05, 0x076e07d9, 0x8185e16c,
+    0xbc340db0, 0xfae638d4, 0xc757d408, 0x7742521c, 0x4af3bec0,
+    0x0c218ba4, 0x31906778, 0xda87408f, 0xe736ac53, 0xa1e49937,
+    0x9c5575eb, 0x2c40f3ff, 0x11f11f23, 0x57232a47, 0x6a92c69b,
+    0xec79202e, 0xd1c8ccf2, 0x971af996, 0xaaab154a, 0x1abe935e,
+    0x270f7f82, 0x61dd4ae6, 0x5c6ca63a, 0xd9040692, 0xe4b5ea4e,
+    0xa267df2a, 0x9fd633f6, 0x2fc3b5e2, 0x1272593e, 0x54a06c5a,
+    0x69118086, 0xeffa6633, 0xd24b8aef, 0x9499bf8b, 0xa9285357,
+    0x193dd543, 0x248c399f, 0x625e0cfb, 0x5fefe027, 0xb4f8c7d0,
+    0x89492b0c, 0xcf9b1e68, 0xf22af2b4, 0x423f74a0, 0x7f8e987c,
+    0x395cad18, 0x04ed41c4, 0x8206a771, 0xbfb74bad, 0xf9657ec9,
+    0xc4d49215, 0x74c11401, 0x4970f8dd, 0x0fa2cdb9, 0x32132165,
+    0x02fd8416, 0x3f4c68ca, 0x799e5dae, 0x442fb172, 0xf43a3766,
+    0xc98bdbba, 0x8f59eede, 0xb2e80202, 0x3403e4b7, 0x09b2086b,
+    0x4f603d0f, 0x72d1d1d3, 0xc2c457c7, 0xff75bb1b, 0xb9a78e7f,
+    0x841662a3, 0x6f014554, 0x52b0a988, 0x14629cec, 0x29d37030,
+    0x99c6f624, 0xa4771af8, 0xe2a52f9c, 0xdf14c340, 0x59ff25f5,
+    0x644ec929, 0x229cfc4d, 0x1f2d1091, 0xaf389685, 0x92897a59,
+    0xd45b4f3d, 0xe9eaa3e1, 0xb58605db, 0x8837e907, 0xcee5dc63,
+    0xf35430bf, 0x4341b6ab, 0x7ef05a77, 0x38226f13, 0x059383cf,
+    0x8378657a, 0xbec989a6, 0xf81bbcc2, 0xc5aa501e, 0x75bfd60a,
+    0x480e3ad6, 0x0edc0fb2, 0x336de36e, 0xd87ac499, 0xe5cb2845,
+    0xa3191d21, 0x9ea8f1fd, 0x2ebd77e9, 0x130c9b35, 0x55deae51,
+    0x686f428d, 0xee84a438, 0xd33548e4, 0x95e77d80, 0xa856915c,
+    0x18431748, 0x25f2fb94, 0x6320cef0, 0x5e91222c, 0x6e7f875f,
+    0x53ce6b83, 0x151c5ee7, 0x28adb23b, 0x98b8342f, 0xa509d8f3,
+    0xe3dbed97, 0xde6a014b, 0x5881e7fe, 0x65300b22, 0x23e23e46,
+    0x1e53d29a, 0xae46548e, 0x93f7b852, 0xd5258d36, 0xe89461ea,
+    0x0383461d, 0x3e32aac1, 0x78e09fa5, 0x45517379, 0xf544f56d,
+    0xc8f519b1, 0x8e272cd5, 0xb396c009, 0x357d26bc, 0x08ccca60,
+    0x4e1eff04, 0x73af13d8, 0xc3ba95cc, 0xfe0b7910, 0xb8d94c74,
+    0x8568a0a8},
+   {0x00000000, 0x69790b65, 0xd2f216ca, 0xbb8b1daf, 0x7e952bd5,
+    0x17ec20b0, 0xac673d1f, 0xc51e367a, 0xfd2a57aa, 0x94535ccf,
+    0x2fd84160, 0x46a14a05, 0x83bf7c7f, 0xeac6771a, 0x514d6ab5,
+    0x383461d0, 0x2125a915, 0x485ca270, 0xf3d7bfdf, 0x9aaeb4ba,
+    0x5fb082c0, 0x36c989a5, 0x8d42940a, 0xe43b9f6f, 0xdc0ffebf,
+    0xb576f5da, 0x0efde875, 0x6784e310, 0xa29ad56a, 0xcbe3de0f,
+    0x7068c3a0, 0x1911c8c5, 0x424b522a, 0x2b32594f, 0x90b944e0,
+    0xf9c04f85, 0x3cde79ff, 0x55a7729a, 0xee2c6f35, 0x87556450,
+    0xbf610580, 0xd6180ee5, 0x6d93134a, 0x04ea182f, 0xc1f42e55,
+    0xa88d2530, 0x1306389f, 0x7a7f33fa, 0x636efb3f, 0x0a17f05a,
+    0xb19cedf5, 0xd8e5e690, 0x1dfbd0ea, 0x7482db8f, 0xcf09c620,
+    0xa670cd45, 0x9e44ac95, 0xf73da7f0, 0x4cb6ba5f, 0x25cfb13a,
+    0xe0d18740, 0x89a88c25, 0x3223918a, 0x5b5a9aef, 0x8496a454,
+    0xedefaf31, 0x5664b29e, 0x3f1db9fb, 0xfa038f81, 0x937a84e4,
+    0x28f1994b, 0x4188922e, 0x79bcf3fe, 0x10c5f89b, 0xab4ee534,
+    0xc237ee51, 0x0729d82b, 0x6e50d34e, 0xd5dbcee1, 0xbca2c584,
+    0xa5b30d41, 0xccca0624, 0x77411b8b, 0x1e3810ee, 0xdb262694,
+    0xb25f2df1, 0x09d4305e, 0x60ad3b3b, 0x58995aeb, 0x31e0518e,
+    0x8a6b4c21, 0xe3124744, 0x260c713e, 0x4f757a5b, 0xf4fe67f4,
+    0x9d876c91, 0xc6ddf67e, 0xafa4fd1b, 0x142fe0b4, 0x7d56ebd1,
+    0xb848ddab, 0xd131d6ce, 0x6abacb61, 0x03c3c004, 0x3bf7a1d4,
+    0x528eaab1, 0xe905b71e, 0x807cbc7b, 0x45628a01, 0x2c1b8164,
+    0x97909ccb, 0xfee997ae, 0xe7f85f6b, 0x8e81540e, 0x350a49a1,
+    0x5c7342c4, 0x996d74be, 0xf0147fdb, 0x4b9f6274, 0x22e66911,
+    0x1ad208c1, 0x73ab03a4, 0xc8201e0b, 0xa159156e, 0x64472314,
+    0x0d3e2871, 0xb6b535de, 0xdfcc3ebb, 0xd25c4ee9, 0xbb25458c,
+    0x00ae5823, 0x69d75346, 0xacc9653c, 0xc5b06e59, 0x7e3b73f6,
+    0x17427893, 0x2f761943, 0x460f1226, 0xfd840f89, 0x94fd04ec,
+    0x51e33296, 0x389a39f3, 0x8311245c, 0xea682f39, 0xf379e7fc,
+    0x9a00ec99, 0x218bf136, 0x48f2fa53, 0x8deccc29, 0xe495c74c,
+    0x5f1edae3, 0x3667d186, 0x0e53b056, 0x672abb33, 0xdca1a69c,
+    0xb5d8adf9, 0x70c69b83, 0x19bf90e6, 0xa2348d49, 0xcb4d862c,
+    0x90171cc3, 0xf96e17a6, 0x42e50a09, 0x2b9c016c, 0xee823716,
+    0x87fb3c73, 0x3c7021dc, 0x55092ab9, 0x6d3d4b69, 0x0444400c,
+    0xbfcf5da3, 0xd6b656c6, 0x13a860bc, 0x7ad16bd9, 0xc15a7676,
+    0xa8237d13, 0xb132b5d6, 0xd84bbeb3, 0x63c0a31c, 0x0ab9a879,
+    0xcfa79e03, 0xa6de9566, 0x1d5588c9, 0x742c83ac, 0x4c18e27c,
+    0x2561e919, 0x9eeaf4b6, 0xf793ffd3, 0x328dc9a9, 0x5bf4c2cc,
+    0xe07fdf63, 0x8906d406, 0x56caeabd, 0x3fb3e1d8, 0x8438fc77,
+    0xed41f712, 0x285fc168, 0x4126ca0d, 0xfaadd7a2, 0x93d4dcc7,
+    0xabe0bd17, 0xc299b672, 0x7912abdd, 0x106ba0b8, 0xd57596c2,
+    0xbc0c9da7, 0x07878008, 0x6efe8b6d, 0x77ef43a8, 0x1e9648cd,
+    0xa51d5562, 0xcc645e07, 0x097a687d, 0x60036318, 0xdb887eb7,
+    0xb2f175d2, 0x8ac51402, 0xe3bc1f67, 0x583702c8, 0x314e09ad,
+    0xf4503fd7, 0x9d2934b2, 0x26a2291d, 0x4fdb2278, 0x1481b897,
+    0x7df8b3f2, 0xc673ae5d, 0xaf0aa538, 0x6a149342, 0x036d9827,
+    0xb8e68588, 0xd19f8eed, 0xe9abef3d, 0x80d2e458, 0x3b59f9f7,
+    0x5220f292, 0x973ec4e8, 0xfe47cf8d, 0x45ccd222, 0x2cb5d947,
+    0x35a41182, 0x5cdd1ae7, 0xe7560748, 0x8e2f0c2d, 0x4b313a57,
+    0x22483132, 0x99c32c9d, 0xf0ba27f8, 0xc88e4628, 0xa1f74d4d,
+    0x1a7c50e2, 0x73055b87, 0xb61b6dfd, 0xdf626698, 0x64e97b37,
+    0x0d907052},
+   {0x00000000, 0x7fc99b93, 0xff933726, 0x805aacb5, 0x2457680d,
+    0x5b9ef39e, 0xdbc45f2b, 0xa40dc4b8, 0x48aed01a, 0x37674b89,
+    0xb73de73c, 0xc8f47caf, 0x6cf9b817, 0x13302384, 0x936a8f31,
+    0xeca314a2, 0x915da034, 0xee943ba7, 0x6ece9712, 0x11070c81,
+    0xb50ac839, 0xcac353aa, 0x4a99ff1f, 0x3550648c, 0xd9f3702e,
+    0xa63aebbd, 0x26604708, 0x59a9dc9b, 0xfda41823, 0x826d83b0,
+    0x02372f05, 0x7dfeb496, 0xf9ca4629, 0x8603ddba, 0x0659710f,
+    0x7990ea9c, 0xdd9d2e24, 0xa254b5b7, 0x220e1902, 0x5dc78291,
+    0xb1649633, 0xcead0da0, 0x4ef7a115, 0x313e3a86, 0x9533fe3e,
+    0xeafa65ad, 0x6aa0c918, 0x1569528b, 0x6897e61d, 0x175e7d8e,
+    0x9704d13b, 0xe8cd4aa8, 0x4cc08e10, 0x33091583, 0xb353b936,
+    0xcc9a22a5, 0x20393607, 0x5ff0ad94, 0xdfaa0121, 0xa0639ab2,
+    0x046e5e0a, 0x7ba7c599, 0xfbfd692c, 0x8434f2bf, 0x28e58a13,
+    0x572c1180, 0xd776bd35, 0xa8bf26a6, 0x0cb2e21e, 0x737b798d,
+    0xf321d538, 0x8ce84eab, 0x604b5a09, 0x1f82c19a, 0x9fd86d2f,
+    0xe011f6bc, 0x441c3204, 0x3bd5a997, 0xbb8f0522, 0xc4469eb1,
+    0xb9b82a27, 0xc671b1b4, 0x462b1d01, 0x39e28692, 0x9def422a,
+    0xe226d9b9, 0x627c750c, 0x1db5ee9f, 0xf116fa3d, 0x8edf61ae,
+    0x0e85cd1b, 0x714c5688, 0xd5419230, 0xaa8809a3, 0x2ad2a516,
+    0x551b3e85, 0xd12fcc3a, 0xaee657a9, 0x2ebcfb1c, 0x5175608f,
+    0xf578a437, 0x8ab13fa4, 0x0aeb9311, 0x75220882, 0x99811c20,
+    0xe64887b3, 0x66122b06, 0x19dbb095, 0xbdd6742d, 0xc21fefbe,
+    0x4245430b, 0x3d8cd898, 0x40726c0e, 0x3fbbf79d, 0xbfe15b28,
+    0xc028c0bb, 0x64250403, 0x1bec9f90, 0x9bb63325, 0xe47fa8b6,
+    0x08dcbc14, 0x77152787, 0xf74f8b32, 0x888610a1, 0x2c8bd419,
+    0x53424f8a, 0xd318e33f, 0xacd178ac, 0x51cb1426, 0x2e028fb5,
+    0xae582300, 0xd191b893, 0x759c7c2b, 0x0a55e7b8, 0x8a0f4b0d,
+    0xf5c6d09e, 0x1965c43c, 0x66ac5faf, 0xe6f6f31a, 0x993f6889,
+    0x3d32ac31, 0x42fb37a2, 0xc2a19b17, 0xbd680084, 0xc096b412,
+    0xbf5f2f81, 0x3f058334, 0x40cc18a7, 0xe4c1dc1f, 0x9b08478c,
+    0x1b52eb39, 0x649b70aa, 0x88386408, 0xf7f1ff9b, 0x77ab532e,
+    0x0862c8bd, 0xac6f0c05, 0xd3a69796, 0x53fc3b23, 0x2c35a0b0,
+    0xa801520f, 0xd7c8c99c, 0x57926529, 0x285bfeba, 0x8c563a02,
+    0xf39fa191, 0x73c50d24, 0x0c0c96b7, 0xe0af8215, 0x9f661986,
+    0x1f3cb533, 0x60f52ea0, 0xc4f8ea18, 0xbb31718b, 0x3b6bdd3e,
+    0x44a246ad, 0x395cf23b, 0x469569a8, 0xc6cfc51d, 0xb9065e8e,
+    0x1d0b9a36, 0x62c201a5, 0xe298ad10, 0x9d513683, 0x71f22221,
+    0x0e3bb9b2, 0x8e611507, 0xf1a88e94, 0x55a54a2c, 0x2a6cd1bf,
+    0xaa367d0a, 0xd5ffe699, 0x792e9e35, 0x06e705a6, 0x86bda913,
+    0xf9743280, 0x5d79f638, 0x22b06dab, 0xa2eac11e, 0xdd235a8d,
+    0x31804e2f, 0x4e49d5bc, 0xce137909, 0xb1dae29a, 0x15d72622,
+    0x6a1ebdb1, 0xea441104, 0x958d8a97, 0xe8733e01, 0x97baa592,
+    0x17e00927, 0x682992b4, 0xcc24560c, 0xb3edcd9f, 0x33b7612a,
+    0x4c7efab9, 0xa0ddee1b, 0xdf147588, 0x5f4ed93d, 0x208742ae,
+    0x848a8616, 0xfb431d85, 0x7b19b130, 0x04d02aa3, 0x80e4d81c,
+    0xff2d438f, 0x7f77ef3a, 0x00be74a9, 0xa4b3b011, 0xdb7a2b82,
+    0x5b208737, 0x24e91ca4, 0xc84a0806, 0xb7839395, 0x37d93f20,
+    0x4810a4b3, 0xec1d600b, 0x93d4fb98, 0x138e572d, 0x6c47ccbe,
+    0x11b97828, 0x6e70e3bb, 0xee2a4f0e, 0x91e3d49d, 0x35ee1025,
+    0x4a278bb6, 0xca7d2703, 0xb5b4bc90, 0x5917a832, 0x26de33a1,
+    0xa6849f14, 0xd94d0487, 0x7d40c03f, 0x02895bac, 0x82d3f719,
+    0xfd1a6c8a},
+   {0x00000000, 0xa396284c, 0x9c5d56d9, 0x3fcb7e95, 0xe3cbabf3,
+    0x405d83bf, 0x7f96fd2a, 0xdc00d566, 0x1ce651a7, 0xbf7079eb,
+    0x80bb077e, 0x232d2f32, 0xff2dfa54, 0x5cbbd218, 0x6370ac8d,
+    0xc0e684c1, 0x39cca34e, 0x9a5a8b02, 0xa591f597, 0x0607dddb,
+    0xda0708bd, 0x799120f1, 0x465a5e64, 0xe5cc7628, 0x252af2e9,
+    0x86bcdaa5, 0xb977a430, 0x1ae18c7c, 0xc6e1591a, 0x65777156,
+    0x5abc0fc3, 0xf92a278f, 0x7399469c, 0xd00f6ed0, 0xefc41045,
+    0x4c523809, 0x9052ed6f, 0x33c4c523, 0x0c0fbbb6, 0xaf9993fa,
+    0x6f7f173b, 0xcce93f77, 0xf32241e2, 0x50b469ae, 0x8cb4bcc8,
+    0x2f229484, 0x10e9ea11, 0xb37fc25d, 0x4a55e5d2, 0xe9c3cd9e,
+    0xd608b30b, 0x759e9b47, 0xa99e4e21, 0x0a08666d, 0x35c318f8,
+    0x965530b4, 0x56b3b475, 0xf5259c39, 0xcaeee2ac, 0x6978cae0,
+    0xb5781f86, 0x16ee37ca, 0x2925495f, 0x8ab36113, 0xe7328d38,
+    0x44a4a574, 0x7b6fdbe1, 0xd8f9f3ad, 0x04f926cb, 0xa76f0e87,
+    0x98a47012, 0x3b32585e, 0xfbd4dc9f, 0x5842f4d3, 0x67898a46,
+    0xc41fa20a, 0x181f776c, 0xbb895f20, 0x844221b5, 0x27d409f9,
+    0xdefe2e76, 0x7d68063a, 0x42a378af, 0xe13550e3, 0x3d358585,
+    0x9ea3adc9, 0xa168d35c, 0x02fefb10, 0xc2187fd1, 0x618e579d,
+    0x5e452908, 0xfdd30144, 0x21d3d422, 0x8245fc6e, 0xbd8e82fb,
+    0x1e18aab7, 0x94abcba4, 0x373de3e8, 0x08f69d7d, 0xab60b531,
+    0x77606057, 0xd4f6481b, 0xeb3d368e, 0x48ab1ec2, 0x884d9a03,
+    0x2bdbb24f, 0x1410ccda, 0xb786e496, 0x6b8631f0, 0xc81019bc,
+    0xf7db6729, 0x544d4f65, 0xad6768ea, 0x0ef140a6, 0x313a3e33,
+    0x92ac167f, 0x4eacc319, 0xed3aeb55, 0xd2f195c0, 0x7167bd8c,
+    0xb181394d, 0x12171101, 0x2ddc6f94, 0x8e4a47d8, 0x524a92be,
+    0xf1dcbaf2, 0xce17c467, 0x6d81ec2b, 0x15141c31, 0xb682347d,
+    0x89494ae8, 0x2adf62a4, 0xf6dfb7c2, 0x55499f8e, 0x6a82e11b,
+    0xc914c957, 0x09f24d96, 0xaa6465da, 0x95af1b4f, 0x36393303,
+    0xea39e665, 0x49afce29, 0x7664b0bc, 0xd5f298f0, 0x2cd8bf7f,
+    0x8f4e9733, 0xb085e9a6, 0x1313c1ea, 0xcf13148c, 0x6c853cc0,
+    0x534e4255, 0xf0d86a19, 0x303eeed8, 0x93a8c694, 0xac63b801,
+    0x0ff5904d, 0xd3f5452b, 0x70636d67, 0x4fa813f2, 0xec3e3bbe,
+    0x668d5aad, 0xc51b72e1, 0xfad00c74, 0x59462438, 0x8546f15e,
+    0x26d0d912, 0x191ba787, 0xba8d8fcb, 0x7a6b0b0a, 0xd9fd2346,
+    0xe6365dd3, 0x45a0759f, 0x99a0a0f9, 0x3a3688b5, 0x05fdf620,
+    0xa66bde6c, 0x5f41f9e3, 0xfcd7d1af, 0xc31caf3a, 0x608a8776,
+    0xbc8a5210, 0x1f1c7a5c, 0x20d704c9, 0x83412c85, 0x43a7a844,
+    0xe0318008, 0xdffafe9d, 0x7c6cd6d1, 0xa06c03b7, 0x03fa2bfb,
+    0x3c31556e, 0x9fa77d22, 0xf2269109, 0x51b0b945, 0x6e7bc7d0,
+    0xcdedef9c, 0x11ed3afa, 0xb27b12b6, 0x8db06c23, 0x2e26446f,
+    0xeec0c0ae, 0x4d56e8e2, 0x729d9677, 0xd10bbe3b, 0x0d0b6b5d,
+    0xae9d4311, 0x91563d84, 0x32c015c8, 0xcbea3247, 0x687c1a0b,
+    0x57b7649e, 0xf4214cd2, 0x282199b4, 0x8bb7b1f8, 0xb47ccf6d,
+    0x17eae721, 0xd70c63e0, 0x749a4bac, 0x4b513539, 0xe8c71d75,
+    0x34c7c813, 0x9751e05f, 0xa89a9eca, 0x0b0cb686, 0x81bfd795,
+    0x2229ffd9, 0x1de2814c, 0xbe74a900, 0x62747c66, 0xc1e2542a,
+    0xfe292abf, 0x5dbf02f3, 0x9d598632, 0x3ecfae7e, 0x0104d0eb,
+    0xa292f8a7, 0x7e922dc1, 0xdd04058d, 0xe2cf7b18, 0x41595354,
+    0xb87374db, 0x1be55c97, 0x242e2202, 0x87b80a4e, 0x5bb8df28,
+    0xf82ef764, 0xc7e589f1, 0x6473a1bd, 0xa495257c, 0x07030d30,
+    0x38c873a5, 0x9b5e5be9, 0x475e8e8f, 0xe4c8a6c3, 0xdb03d856,
+    0x7895f01a},
+   {0x00000000, 0x2a283862, 0x545070c4, 0x7e7848a6, 0xa8a0e188,
+    0x8288d9ea, 0xfcf0914c, 0xd6d8a92e, 0x8a30c551, 0xa018fd33,
+    0xde60b595, 0xf4488df7, 0x229024d9, 0x08b81cbb, 0x76c0541d,
+    0x5ce86c7f, 0xcf108ce3, 0xe538b481, 0x9b40fc27, 0xb168c445,
+    0x67b06d6b, 0x4d985509, 0x33e01daf, 0x19c825cd, 0x452049b2,
+    0x6f0871d0, 0x11703976, 0x3b580114, 0xed80a83a, 0xc7a89058,
+    0xb9d0d8fe, 0x93f8e09c, 0x45501f87, 0x6f7827e5, 0x11006f43,
+    0x3b285721, 0xedf0fe0f, 0xc7d8c66d, 0xb9a08ecb, 0x9388b6a9,
+    0xcf60dad6, 0xe548e2b4, 0x9b30aa12, 0xb1189270, 0x67c03b5e,
+    0x4de8033c, 0x33904b9a, 0x19b873f8, 0x8a409364, 0xa068ab06,
+    0xde10e3a0, 0xf438dbc2, 0x22e072ec, 0x08c84a8e, 0x76b00228,
+    0x5c983a4a, 0x00705635, 0x2a586e57, 0x542026f1, 0x7e081e93,
+    0xa8d0b7bd, 0x82f88fdf, 0xfc80c779, 0xd6a8ff1b, 0x8aa03f0e,
+    0xa088076c, 0xdef04fca, 0xf4d877a8, 0x2200de86, 0x0828e6e4,
+    0x7650ae42, 0x5c789620, 0x0090fa5f, 0x2ab8c23d, 0x54c08a9b,
+    0x7ee8b2f9, 0xa8301bd7, 0x821823b5, 0xfc606b13, 0xd6485371,
+    0x45b0b3ed, 0x6f988b8f, 0x11e0c329, 0x3bc8fb4b, 0xed105265,
+    0xc7386a07, 0xb94022a1, 0x93681ac3, 0xcf8076bc, 0xe5a84ede,
+    0x9bd00678, 0xb1f83e1a, 0x67209734, 0x4d08af56, 0x3370e7f0,
+    0x1958df92, 0xcff02089, 0xe5d818eb, 0x9ba0504d, 0xb188682f,
+    0x6750c101, 0x4d78f963, 0x3300b1c5, 0x192889a7, 0x45c0e5d8,
+    0x6fe8ddba, 0x1190951c, 0x3bb8ad7e, 0xed600450, 0xc7483c32,
+    0xb9307494, 0x93184cf6, 0x00e0ac6a, 0x2ac89408, 0x54b0dcae,
+    0x7e98e4cc, 0xa8404de2, 0x82687580, 0xfc103d26, 0xd6380544,
+    0x8ad0693b, 0xa0f85159, 0xde8019ff, 0xf4a8219d, 0x227088b3,
+    0x0858b0d1, 0x7620f877, 0x5c08c015, 0xce31785d, 0xe419403f,
+    0x9a610899, 0xb04930fb, 0x669199d5, 0x4cb9a1b7, 0x32c1e911,
+    0x18e9d173, 0x4401bd0c, 0x6e29856e, 0x1051cdc8, 0x3a79f5aa,
+    0xeca15c84, 0xc68964e6, 0xb8f12c40, 0x92d91422, 0x0121f4be,
+    0x2b09ccdc, 0x5571847a, 0x7f59bc18, 0xa9811536, 0x83a92d54,
+    0xfdd165f2, 0xd7f95d90, 0x8b1131ef, 0xa139098d, 0xdf41412b,
+    0xf5697949, 0x23b1d067, 0x0999e805, 0x77e1a0a3, 0x5dc998c1,
+    0x8b6167da, 0xa1495fb8, 0xdf31171e, 0xf5192f7c, 0x23c18652,
+    0x09e9be30, 0x7791f696, 0x5db9cef4, 0x0151a28b, 0x2b799ae9,
+    0x5501d24f, 0x7f29ea2d, 0xa9f14303, 0x83d97b61, 0xfda133c7,
+    0xd7890ba5, 0x4471eb39, 0x6e59d35b, 0x10219bfd, 0x3a09a39f,
+    0xecd10ab1, 0xc6f932d3, 0xb8817a75, 0x92a94217, 0xce412e68,
+    0xe469160a, 0x9a115eac, 0xb03966ce, 0x66e1cfe0, 0x4cc9f782,
+    0x32b1bf24, 0x18998746, 0x44914753, 0x6eb97f31, 0x10c13797,
+    0x3ae90ff5, 0xec31a6db, 0xc6199eb9, 0xb861d61f, 0x9249ee7d,
+    0xcea18202, 0xe489ba60, 0x9af1f2c6, 0xb0d9caa4, 0x6601638a,
+    0x4c295be8, 0x3251134e, 0x18792b2c, 0x8b81cbb0, 0xa1a9f3d2,
+    0xdfd1bb74, 0xf5f98316, 0x23212a38, 0x0909125a, 0x77715afc,
+    0x5d59629e, 0x01b10ee1, 0x2b993683, 0x55e17e25, 0x7fc94647,
+    0xa911ef69, 0x8339d70b, 0xfd419fad, 0xd769a7cf, 0x01c158d4,
+    0x2be960b6, 0x55912810, 0x7fb91072, 0xa961b95c, 0x8349813e,
+    0xfd31c998, 0xd719f1fa, 0x8bf19d85, 0xa1d9a5e7, 0xdfa1ed41,
+    0xf589d523, 0x23517c0d, 0x0979446f, 0x77010cc9, 0x5d2934ab,
+    0xced1d437, 0xe4f9ec55, 0x9a81a4f3, 0xb0a99c91, 0x667135bf,
+    0x4c590ddd, 0x3221457b, 0x18097d19, 0x44e11166, 0x6ec92904,
+    0x10b161a2, 0x3a9959c0, 0xec41f0ee, 0xc669c88c, 0xb811802a,
+    0x9239b848},
+   {0x00000000, 0x4713f6fb, 0x8e27edf6, 0xc9341b0d, 0xc73eddad,
+    0x802d2b56, 0x4919305b, 0x0e0ac6a0, 0x550cbd1b, 0x121f4be0,
+    0xdb2b50ed, 0x9c38a616, 0x923260b6, 0xd521964d, 0x1c158d40,
+    0x5b067bbb, 0xaa197a36, 0xed0a8ccd, 0x243e97c0, 0x632d613b,
+    0x6d27a79b, 0x2a345160, 0xe3004a6d, 0xa413bc96, 0xff15c72d,
+    0xb80631d6, 0x71322adb, 0x3621dc20, 0x382b1a80, 0x7f38ec7b,
+    0xb60cf776, 0xf11f018d, 0x8f43f22d, 0xc85004d6, 0x01641fdb,
+    0x4677e920, 0x487d2f80, 0x0f6ed97b, 0xc65ac276, 0x8149348d,
+    0xda4f4f36, 0x9d5cb9cd, 0x5468a2c0, 0x137b543b, 0x1d71929b,
+    0x5a626460, 0x93567f6d, 0xd4458996, 0x255a881b, 0x62497ee0,
+    0xab7d65ed, 0xec6e9316, 0xe26455b6, 0xa577a34d, 0x6c43b840,
+    0x2b504ebb, 0x70563500, 0x3745c3fb, 0xfe71d8f6, 0xb9622e0d,
+    0xb768e8ad, 0xf07b1e56, 0x394f055b, 0x7e5cf3a0, 0xc5f6e21b,
+    0x82e514e0, 0x4bd10fed, 0x0cc2f916, 0x02c83fb6, 0x45dbc94d,
+    0x8cefd240, 0xcbfc24bb, 0x90fa5f00, 0xd7e9a9fb, 0x1eddb2f6,
+    0x59ce440d, 0x57c482ad, 0x10d77456, 0xd9e36f5b, 0x9ef099a0,
+    0x6fef982d, 0x28fc6ed6, 0xe1c875db, 0xa6db8320, 0xa8d14580,
+    0xefc2b37b, 0x26f6a876, 0x61e55e8d, 0x3ae32536, 0x7df0d3cd,
+    0xb4c4c8c0, 0xf3d73e3b, 0xfdddf89b, 0xbace0e60, 0x73fa156d,
+    0x34e9e396, 0x4ab51036, 0x0da6e6cd, 0xc492fdc0, 0x83810b3b,
+    0x8d8bcd9b, 0xca983b60, 0x03ac206d, 0x44bfd696, 0x1fb9ad2d,
+    0x58aa5bd6, 0x919e40db, 0xd68db620, 0xd8877080, 0x9f94867b,
+    0x56a09d76, 0x11b36b8d, 0xe0ac6a00, 0xa7bf9cfb, 0x6e8b87f6,
+    0x2998710d, 0x2792b7ad, 0x60814156, 0xa9b55a5b, 0xeea6aca0,
+    0xb5a0d71b, 0xf2b321e0, 0x3b873aed, 0x7c94cc16, 0x729e0ab6,
+    0x358dfc4d, 0xfcb9e740, 0xbbaa11bb, 0x509cc277, 0x178f348c,
+    0xdebb2f81, 0x99a8d97a, 0x97a21fda, 0xd0b1e921, 0x1985f22c,
+    0x5e9604d7, 0x05907f6c, 0x42838997, 0x8bb7929a, 0xcca46461,
+    0xc2aea2c1, 0x85bd543a, 0x4c894f37, 0x0b9ab9cc, 0xfa85b841,
+    0xbd964eba, 0x74a255b7, 0x33b1a34c, 0x3dbb65ec, 0x7aa89317,
+    0xb39c881a, 0xf48f7ee1, 0xaf89055a, 0xe89af3a1, 0x21aee8ac,
+    0x66bd1e57, 0x68b7d8f7, 0x2fa42e0c, 0xe6903501, 0xa183c3fa,
+    0xdfdf305a, 0x98ccc6a1, 0x51f8ddac, 0x16eb2b57, 0x18e1edf7,
+    0x5ff21b0c, 0x96c60001, 0xd1d5f6fa, 0x8ad38d41, 0xcdc07bba,
+    0x04f460b7, 0x43e7964c, 0x4ded50ec, 0x0afea617, 0xc3cabd1a,
+    0x84d94be1, 0x75c64a6c, 0x32d5bc97, 0xfbe1a79a, 0xbcf25161,
+    0xb2f897c1, 0xf5eb613a, 0x3cdf7a37, 0x7bcc8ccc, 0x20caf777,
+    0x67d9018c, 0xaeed1a81, 0xe9feec7a, 0xe7f42ada, 0xa0e7dc21,
+    0x69d3c72c, 0x2ec031d7, 0x956a206c, 0xd279d697, 0x1b4dcd9a,
+    0x5c5e3b61, 0x5254fdc1, 0x15470b3a, 0xdc731037, 0x9b60e6cc,
+    0xc0669d77, 0x87756b8c, 0x4e417081, 0x0952867a, 0x075840da,
+    0x404bb621, 0x897fad2c, 0xce6c5bd7, 0x3f735a5a, 0x7860aca1,
+    0xb154b7ac, 0xf6474157, 0xf84d87f7, 0xbf5e710c, 0x766a6a01,
+    0x31799cfa, 0x6a7fe741, 0x2d6c11ba, 0xe4580ab7, 0xa34bfc4c,
+    0xad413aec, 0xea52cc17, 0x2366d71a, 0x647521e1, 0x1a29d241,
+    0x5d3a24ba, 0x940e3fb7, 0xd31dc94c, 0xdd170fec, 0x9a04f917,
+    0x5330e21a, 0x142314e1, 0x4f256f5a, 0x083699a1, 0xc10282ac,
+    0x86117457, 0x881bb2f7, 0xcf08440c, 0x063c5f01, 0x412fa9fa,
+    0xb030a877, 0xf7235e8c, 0x3e174581, 0x7904b37a, 0x770e75da,
+    0x301d8321, 0xf929982c, 0xbe3a6ed7, 0xe53c156c, 0xa22fe397,
+    0x6b1bf89a, 0x2c080e61, 0x2202c8c1, 0x65113e3a, 0xac252537,
+    0xeb36d3cc},
+   {0x00000000, 0xa13984ee, 0x99020f9d, 0x383b8b73, 0xe975197b,
+    0x484c9d95, 0x707716e6, 0xd14e9208, 0x099b34b7, 0xa8a2b059,
+    0x90993b2a, 0x31a0bfc4, 0xe0ee2dcc, 0x41d7a922, 0x79ec2251,
+    0xd8d5a6bf, 0x1336696e, 0xb20fed80, 0x8a3466f3, 0x2b0de21d,
+    0xfa437015, 0x5b7af4fb, 0x63417f88, 0xc278fb66, 0x1aad5dd9,
+    0xbb94d937, 0x83af5244, 0x2296d6aa, 0xf3d844a2, 0x52e1c04c,
+    0x6ada4b3f, 0xcbe3cfd1, 0x266cd2dc, 0x87555632, 0xbf6edd41,
+    0x1e5759af, 0xcf19cba7, 0x6e204f49, 0x561bc43a, 0xf72240d4,
+    0x2ff7e66b, 0x8ece6285, 0xb6f5e9f6, 0x17cc6d18, 0xc682ff10,
+    0x67bb7bfe, 0x5f80f08d, 0xfeb97463, 0x355abbb2, 0x94633f5c,
+    0xac58b42f, 0x0d6130c1, 0xdc2fa2c9, 0x7d162627, 0x452dad54,
+    0xe41429ba, 0x3cc18f05, 0x9df80beb, 0xa5c38098, 0x04fa0476,
+    0xd5b4967e, 0x748d1290, 0x4cb699e3, 0xed8f1d0d, 0x4cd9a5b8,
+    0xede02156, 0xd5dbaa25, 0x74e22ecb, 0xa5acbcc3, 0x0495382d,
+    0x3caeb35e, 0x9d9737b0, 0x4542910f, 0xe47b15e1, 0xdc409e92,
+    0x7d791a7c, 0xac378874, 0x0d0e0c9a, 0x353587e9, 0x940c0307,
+    0x5fefccd6, 0xfed64838, 0xc6edc34b, 0x67d447a5, 0xb69ad5ad,
+    0x17a35143, 0x2f98da30, 0x8ea15ede, 0x5674f861, 0xf74d7c8f,
+    0xcf76f7fc, 0x6e4f7312, 0xbf01e11a, 0x1e3865f4, 0x2603ee87,
+    0x873a6a69, 0x6ab57764, 0xcb8cf38a, 0xf3b778f9, 0x528efc17,
+    0x83c06e1f, 0x22f9eaf1, 0x1ac26182, 0xbbfbe56c, 0x632e43d3,
+    0xc217c73d, 0xfa2c4c4e, 0x5b15c8a0, 0x8a5b5aa8, 0x2b62de46,
+    0x13595535, 0xb260d1db, 0x79831e0a, 0xd8ba9ae4, 0xe0811197,
+    0x41b89579, 0x90f60771, 0x31cf839f, 0x09f408ec, 0xa8cd8c02,
+    0x70182abd, 0xd121ae53, 0xe91a2520, 0x4823a1ce, 0x996d33c6,
+    0x3854b728, 0x006f3c5b, 0xa156b8b5, 0x99b34b70, 0x388acf9e,
+    0x00b144ed, 0xa188c003, 0x70c6520b, 0xd1ffd6e5, 0xe9c45d96,
+    0x48fdd978, 0x90287fc7, 0x3111fb29, 0x092a705a, 0xa813f4b4,
+    0x795d66bc, 0xd864e252, 0xe05f6921, 0x4166edcf, 0x8a85221e,
+    0x2bbca6f0, 0x13872d83, 0xb2bea96d, 0x63f03b65, 0xc2c9bf8b,
+    0xfaf234f8, 0x5bcbb016, 0x831e16a9, 0x22279247, 0x1a1c1934,
+    0xbb259dda, 0x6a6b0fd2, 0xcb528b3c, 0xf369004f, 0x525084a1,
+    0xbfdf99ac, 0x1ee61d42, 0x26dd9631, 0x87e412df, 0x56aa80d7,
+    0xf7930439, 0xcfa88f4a, 0x6e910ba4, 0xb644ad1b, 0x177d29f5,
+    0x2f46a286, 0x8e7f2668, 0x5f31b460, 0xfe08308e, 0xc633bbfd,
+    0x670a3f13, 0xace9f0c2, 0x0dd0742c, 0x35ebff5f, 0x94d27bb1,
+    0x459ce9b9, 0xe4a56d57, 0xdc9ee624, 0x7da762ca, 0xa572c475,
+    0x044b409b, 0x3c70cbe8, 0x9d494f06, 0x4c07dd0e, 0xed3e59e0,
+    0xd505d293, 0x743c567d, 0xd56aeec8, 0x74536a26, 0x4c68e155,
+    0xed5165bb, 0x3c1ff7b3, 0x9d26735d, 0xa51df82e, 0x04247cc0,
+    0xdcf1da7f, 0x7dc85e91, 0x45f3d5e2, 0xe4ca510c, 0x3584c304,
+    0x94bd47ea, 0xac86cc99, 0x0dbf4877, 0xc65c87a6, 0x67650348,
+    0x5f5e883b, 0xfe670cd5, 0x2f299edd, 0x8e101a33, 0xb62b9140,
+    0x171215ae, 0xcfc7b311, 0x6efe37ff, 0x56c5bc8c, 0xf7fc3862,
+    0x26b2aa6a, 0x878b2e84, 0xbfb0a5f7, 0x1e892119, 0xf3063c14,
+    0x523fb8fa, 0x6a043389, 0xcb3db767, 0x1a73256f, 0xbb4aa181,
+    0x83712af2, 0x2248ae1c, 0xfa9d08a3, 0x5ba48c4d, 0x639f073e,
+    0xc2a683d0, 0x13e811d8, 0xb2d19536, 0x8aea1e45, 0x2bd39aab,
+    0xe030557a, 0x4109d194, 0x79325ae7, 0xd80bde09, 0x09454c01,
+    0xa87cc8ef, 0x9047439c, 0x317ec772, 0xe9ab61cd, 0x4892e523,
+    0x70a96e50, 0xd190eabe, 0x00de78b6, 0xa1e7fc58, 0x99dc772b,
+    0x38e5f3c5},
+   {0x00000000, 0xe81790a1, 0x0b5e2703, 0xe349b7a2, 0x16bc4e06,
+    0xfeabdea7, 0x1de26905, 0xf5f5f9a4, 0x2d789c0c, 0xc56f0cad,
+    0x2626bb0f, 0xce312bae, 0x3bc4d20a, 0xd3d342ab, 0x309af509,
+    0xd88d65a8, 0x5af13818, 0xb2e6a8b9, 0x51af1f1b, 0xb9b88fba,
+    0x4c4d761e, 0xa45ae6bf, 0x4713511d, 0xaf04c1bc, 0x7789a414,
+    0x9f9e34b5, 0x7cd78317, 0x94c013b6, 0x6135ea12, 0x89227ab3,
+    0x6a6bcd11, 0x827c5db0, 0xb5e27030, 0x5df5e091, 0xbebc5733,
+    0x56abc792, 0xa35e3e36, 0x4b49ae97, 0xa8001935, 0x40178994,
+    0x989aec3c, 0x708d7c9d, 0x93c4cb3f, 0x7bd35b9e, 0x8e26a23a,
+    0x6631329b, 0x85788539, 0x6d6f1598, 0xef134828, 0x0704d889,
+    0xe44d6f2b, 0x0c5aff8a, 0xf9af062e, 0x11b8968f, 0xf2f1212d,
+    0x1ae6b18c, 0xc26bd424, 0x2a7c4485, 0xc935f327, 0x21226386,
+    0xd4d79a22, 0x3cc00a83, 0xdf89bd21, 0x379e2d80, 0xb0b5e621,
+    0x58a27680, 0xbbebc122, 0x53fc5183, 0xa609a827, 0x4e1e3886,
+    0xad578f24, 0x45401f85, 0x9dcd7a2d, 0x75daea8c, 0x96935d2e,
+    0x7e84cd8f, 0x8b71342b, 0x6366a48a, 0x802f1328, 0x68388389,
+    0xea44de39, 0x02534e98, 0xe11af93a, 0x090d699b, 0xfcf8903f,
+    0x14ef009e, 0xf7a6b73c, 0x1fb1279d, 0xc73c4235, 0x2f2bd294,
+    0xcc626536, 0x2475f597, 0xd1800c33, 0x39979c92, 0xdade2b30,
+    0x32c9bb91, 0x05579611, 0xed4006b0, 0x0e09b112, 0xe61e21b3,
+    0x13ebd817, 0xfbfc48b6, 0x18b5ff14, 0xf0a26fb5, 0x282f0a1d,
+    0xc0389abc, 0x23712d1e, 0xcb66bdbf, 0x3e93441b, 0xd684d4ba,
+    0x35cd6318, 0xdddaf3b9, 0x5fa6ae09, 0xb7b13ea8, 0x54f8890a,
+    0xbcef19ab, 0x491ae00f, 0xa10d70ae, 0x4244c70c, 0xaa5357ad,
+    0x72de3205, 0x9ac9a2a4, 0x79801506, 0x919785a7, 0x64627c03,
+    0x8c75eca2, 0x6f3c5b00, 0x872bcba1, 0xba1aca03, 0x520d5aa2,
+    0xb144ed00, 0x59537da1, 0xaca68405, 0x44b114a4, 0xa7f8a306,
+    0x4fef33a7, 0x9762560f, 0x7f75c6ae, 0x9c3c710c, 0x742be1ad,
+    0x81de1809, 0x69c988a8, 0x8a803f0a, 0x6297afab, 0xe0ebf21b,
+    0x08fc62ba, 0xebb5d518, 0x03a245b9, 0xf657bc1d, 0x1e402cbc,
+    0xfd099b1e, 0x151e0bbf, 0xcd936e17, 0x2584feb6, 0xc6cd4914,
+    0x2edad9b5, 0xdb2f2011, 0x3338b0b0, 0xd0710712, 0x386697b3,
+    0x0ff8ba33, 0xe7ef2a92, 0x04a69d30, 0xecb10d91, 0x1944f435,
+    0xf1536494, 0x121ad336, 0xfa0d4397, 0x2280263f, 0xca97b69e,
+    0x29de013c, 0xc1c9919d, 0x343c6839, 0xdc2bf898, 0x3f624f3a,
+    0xd775df9b, 0x5509822b, 0xbd1e128a, 0x5e57a528, 0xb6403589,
+    0x43b5cc2d, 0xaba25c8c, 0x48ebeb2e, 0xa0fc7b8f, 0x78711e27,
+    0x90668e86, 0x732f3924, 0x9b38a985, 0x6ecd5021, 0x86dac080,
+    0x65937722, 0x8d84e783, 0x0aaf2c22, 0xe2b8bc83, 0x01f10b21,
+    0xe9e69b80, 0x1c136224, 0xf404f285, 0x174d4527, 0xff5ad586,
+    0x27d7b02e, 0xcfc0208f, 0x2c89972d, 0xc49e078c, 0x316bfe28,
+    0xd97c6e89, 0x3a35d92b, 0xd222498a, 0x505e143a, 0xb849849b,
+    0x5b003339, 0xb317a398, 0x46e25a3c, 0xaef5ca9d, 0x4dbc7d3f,
+    0xa5abed9e, 0x7d268836, 0x95311897, 0x7678af35, 0x9e6f3f94,
+    0x6b9ac630, 0x838d5691, 0x60c4e133, 0x88d37192, 0xbf4d5c12,
+    0x575accb3, 0xb4137b11, 0x5c04ebb0, 0xa9f11214, 0x41e682b5,
+    0xa2af3517, 0x4ab8a5b6, 0x9235c01e, 0x7a2250bf, 0x996be71d,
+    0x717c77bc, 0x84898e18, 0x6c9e1eb9, 0x8fd7a91b, 0x67c039ba,
+    0xe5bc640a, 0x0dabf4ab, 0xeee24309, 0x06f5d3a8, 0xf3002a0c,
+    0x1b17baad, 0xf85e0d0f, 0x10499dae, 0xc8c4f806, 0x20d368a7,
+    0xc39adf05, 0x2b8d4fa4, 0xde78b600, 0x366f26a1, 0xd5269103,
+    0x3d3101a2}};
+
+local const z_word_t FAR crc_braid_big_table[][256] = {
+   {0x0000000000000000, 0xa19017e800000000, 0x03275e0b00000000,
+    0xa2b749e300000000, 0x064ebc1600000000, 0xa7deabfe00000000,
+    0x0569e21d00000000, 0xa4f9f5f500000000, 0x0c9c782d00000000,
+    0xad0c6fc500000000, 0x0fbb262600000000, 0xae2b31ce00000000,
+    0x0ad2c43b00000000, 0xab42d3d300000000, 0x09f59a3000000000,
+    0xa8658dd800000000, 0x1838f15a00000000, 0xb9a8e6b200000000,
+    0x1b1faf5100000000, 0xba8fb8b900000000, 0x1e764d4c00000000,
+    0xbfe65aa400000000, 0x1d51134700000000, 0xbcc104af00000000,
+    0x14a4897700000000, 0xb5349e9f00000000, 0x1783d77c00000000,
+    0xb613c09400000000, 0x12ea356100000000, 0xb37a228900000000,
+    0x11cd6b6a00000000, 0xb05d7c8200000000, 0x3070e2b500000000,
+    0x91e0f55d00000000, 0x3357bcbe00000000, 0x92c7ab5600000000,
+    0x363e5ea300000000, 0x97ae494b00000000, 0x351900a800000000,
+    0x9489174000000000, 0x3cec9a9800000000, 0x9d7c8d7000000000,
+    0x3fcbc49300000000, 0x9e5bd37b00000000, 0x3aa2268e00000000,
+    0x9b32316600000000, 0x3985788500000000, 0x98156f6d00000000,
+    0x284813ef00000000, 0x89d8040700000000, 0x2b6f4de400000000,
+    0x8aff5a0c00000000, 0x2e06aff900000000, 0x8f96b81100000000,
+    0x2d21f1f200000000, 0x8cb1e61a00000000, 0x24d46bc200000000,
+    0x85447c2a00000000, 0x27f335c900000000, 0x8663222100000000,
+    0x229ad7d400000000, 0x830ac03c00000000, 0x21bd89df00000000,
+    0x802d9e3700000000, 0x21e6b5b000000000, 0x8076a25800000000,
+    0x22c1ebbb00000000, 0x8351fc5300000000, 0x27a809a600000000,
+    0x86381e4e00000000, 0x248f57ad00000000, 0x851f404500000000,
+    0x2d7acd9d00000000, 0x8ceada7500000000, 0x2e5d939600000000,
+    0x8fcd847e00000000, 0x2b34718b00000000, 0x8aa4666300000000,
+    0x28132f8000000000, 0x8983386800000000, 0x39de44ea00000000,
+    0x984e530200000000, 0x3af91ae100000000, 0x9b690d0900000000,
+    0x3f90f8fc00000000, 0x9e00ef1400000000, 0x3cb7a6f700000000,
+    0x9d27b11f00000000, 0x35423cc700000000, 0x94d22b2f00000000,
+    0x366562cc00000000, 0x97f5752400000000, 0x330c80d100000000,
+    0x929c973900000000, 0x302bdeda00000000, 0x91bbc93200000000,
+    0x1196570500000000, 0xb00640ed00000000, 0x12b1090e00000000,
+    0xb3211ee600000000, 0x17d8eb1300000000, 0xb648fcfb00000000,
+    0x14ffb51800000000, 0xb56fa2f000000000, 0x1d0a2f2800000000,
+    0xbc9a38c000000000, 0x1e2d712300000000, 0xbfbd66cb00000000,
+    0x1b44933e00000000, 0xbad484d600000000, 0x1863cd3500000000,
+    0xb9f3dadd00000000, 0x09aea65f00000000, 0xa83eb1b700000000,
+    0x0a89f85400000000, 0xab19efbc00000000, 0x0fe01a4900000000,
+    0xae700da100000000, 0x0cc7444200000000, 0xad5753aa00000000,
+    0x0532de7200000000, 0xa4a2c99a00000000, 0x0615807900000000,
+    0xa785979100000000, 0x037c626400000000, 0xa2ec758c00000000,
+    0x005b3c6f00000000, 0xa1cb2b8700000000, 0x03ca1aba00000000,
+    0xa25a0d5200000000, 0x00ed44b100000000, 0xa17d535900000000,
+    0x0584a6ac00000000, 0xa414b14400000000, 0x06a3f8a700000000,
+    0xa733ef4f00000000, 0x0f56629700000000, 0xaec6757f00000000,
+    0x0c713c9c00000000, 0xade12b7400000000, 0x0918de8100000000,
+    0xa888c96900000000, 0x0a3f808a00000000, 0xabaf976200000000,
+    0x1bf2ebe000000000, 0xba62fc0800000000, 0x18d5b5eb00000000,
+    0xb945a20300000000, 0x1dbc57f600000000, 0xbc2c401e00000000,
+    0x1e9b09fd00000000, 0xbf0b1e1500000000, 0x176e93cd00000000,
+    0xb6fe842500000000, 0x1449cdc600000000, 0xb5d9da2e00000000,
+    0x11202fdb00000000, 0xb0b0383300000000, 0x120771d000000000,
+    0xb397663800000000, 0x33baf80f00000000, 0x922aefe700000000,
+    0x309da60400000000, 0x910db1ec00000000, 0x35f4441900000000,
+    0x946453f100000000, 0x36d31a1200000000, 0x97430dfa00000000,
+    0x3f26802200000000, 0x9eb697ca00000000, 0x3c01de2900000000,
+    0x9d91c9c100000000, 0x39683c3400000000, 0x98f82bdc00000000,
+    0x3a4f623f00000000, 0x9bdf75d700000000, 0x2b82095500000000,
+    0x8a121ebd00000000, 0x28a5575e00000000, 0x893540b600000000,
+    0x2dccb54300000000, 0x8c5ca2ab00000000, 0x2eebeb4800000000,
+    0x8f7bfca000000000, 0x271e717800000000, 0x868e669000000000,
+    0x24392f7300000000, 0x85a9389b00000000, 0x2150cd6e00000000,
+    0x80c0da8600000000, 0x2277936500000000, 0x83e7848d00000000,
+    0x222caf0a00000000, 0x83bcb8e200000000, 0x210bf10100000000,
+    0x809be6e900000000, 0x2462131c00000000, 0x85f204f400000000,
+    0x27454d1700000000, 0x86d55aff00000000, 0x2eb0d72700000000,
+    0x8f20c0cf00000000, 0x2d97892c00000000, 0x8c079ec400000000,
+    0x28fe6b3100000000, 0x896e7cd900000000, 0x2bd9353a00000000,
+    0x8a4922d200000000, 0x3a145e5000000000, 0x9b8449b800000000,
+    0x3933005b00000000, 0x98a317b300000000, 0x3c5ae24600000000,
+    0x9dcaf5ae00000000, 0x3f7dbc4d00000000, 0x9eedaba500000000,
+    0x3688267d00000000, 0x9718319500000000, 0x35af787600000000,
+    0x943f6f9e00000000, 0x30c69a6b00000000, 0x91568d8300000000,
+    0x33e1c46000000000, 0x9271d38800000000, 0x125c4dbf00000000,
+    0xb3cc5a5700000000, 0x117b13b400000000, 0xb0eb045c00000000,
+    0x1412f1a900000000, 0xb582e64100000000, 0x1735afa200000000,
+    0xb6a5b84a00000000, 0x1ec0359200000000, 0xbf50227a00000000,
+    0x1de76b9900000000, 0xbc777c7100000000, 0x188e898400000000,
+    0xb91e9e6c00000000, 0x1ba9d78f00000000, 0xba39c06700000000,
+    0x0a64bce500000000, 0xabf4ab0d00000000, 0x0943e2ee00000000,
+    0xa8d3f50600000000, 0x0c2a00f300000000, 0xadba171b00000000,
+    0x0f0d5ef800000000, 0xae9d491000000000, 0x06f8c4c800000000,
+    0xa768d32000000000, 0x05df9ac300000000, 0xa44f8d2b00000000,
+    0x00b678de00000000, 0xa1266f3600000000, 0x039126d500000000,
+    0xa201313d00000000},
+   {0x0000000000000000, 0xee8439a100000000, 0x9d0f029900000000,
+    0x738b3b3800000000, 0x7b1975e900000000, 0x959d4c4800000000,
+    0xe616777000000000, 0x08924ed100000000, 0xb7349b0900000000,
+    0x59b0a2a800000000, 0x2a3b999000000000, 0xc4bfa03100000000,
+    0xcc2deee000000000, 0x22a9d74100000000, 0x5122ec7900000000,
+    0xbfa6d5d800000000, 0x6e69361300000000, 0x80ed0fb200000000,
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+    0x8c56ae1c00000000, 0x98d0bbac00000000, 0x443c0a9100000000,
+    0x2009d8d700000000, 0xfce569ea00000000, 0x0bc27e0100000000,
+    0xd72ecf3c00000000, 0xb31b1d7a00000000, 0x6ff7ac4700000000,
+    0x7b71b9f700000000, 0xa79d08ca00000000, 0xc3a8da8c00000000,
+    0x1f446bb100000000, 0xaaa2803700000000, 0x764e310a00000000,
+    0x127be34c00000000, 0xce97527100000000, 0xda1147c100000000,
+    0x06fdf6fc00000000, 0x62c824ba00000000, 0xbe24958700000000,
+    0xcd817bb700000000, 0x116dca8a00000000, 0x755818cc00000000,
+    0xa9b4a9f100000000, 0xbd32bc4100000000, 0x61de0d7c00000000,
+    0x05ebdf3a00000000, 0xd9076e0700000000, 0x6ce1858100000000,
+    0xb00d34bc00000000, 0xd438e6fa00000000, 0x08d457c700000000,
+    0x1c52427700000000, 0xc0bef34a00000000, 0xa48b210c00000000,
+    0x7867903100000000, 0x8f4087da00000000, 0x53ac36e700000000,
+    0x3799e4a100000000, 0xeb75559c00000000, 0xfff3402c00000000,
+    0x231ff11100000000, 0x472a235700000000, 0x9bc6926a00000000,
+    0x2e2079ec00000000, 0xf2ccc8d100000000, 0x96f91a9700000000,
+    0x4a15abaa00000000, 0x5e93be1a00000000, 0x827f0f2700000000,
+    0xe64add6100000000, 0x3aa66c5c00000000, 0x920604d900000000,
+    0x4eeab5e400000000, 0x2adf67a200000000, 0xf633d69f00000000,
+    0xe2b5c32f00000000, 0x3e59721200000000, 0x5a6ca05400000000,
+    0x8680116900000000, 0x3366faef00000000, 0xef8a4bd200000000,
+    0x8bbf999400000000, 0x575328a900000000, 0x43d53d1900000000,
+    0x9f398c2400000000, 0xfb0c5e6200000000, 0x27e0ef5f00000000,
+    0xd0c7f8b400000000, 0x0c2b498900000000, 0x681e9bcf00000000,
+    0xb4f22af200000000, 0xa0743f4200000000, 0x7c988e7f00000000,
+    0x18ad5c3900000000, 0xc441ed0400000000, 0x71a7068200000000,
+    0xad4bb7bf00000000, 0xc97e65f900000000, 0x1592d4c400000000,
+    0x0114c17400000000, 0xddf8704900000000, 0xb9cda20f00000000,
+    0x6521133200000000, 0x1684fd0200000000, 0xca684c3f00000000,
+    0xae5d9e7900000000, 0x72b12f4400000000, 0x66373af400000000,
+    0xbadb8bc900000000, 0xdeee598f00000000, 0x0202e8b200000000,
+    0xb7e4033400000000, 0x6b08b20900000000, 0x0f3d604f00000000,
+    0xd3d1d17200000000, 0xc757c4c200000000, 0x1bbb75ff00000000,
+    0x7f8ea7b900000000, 0xa362168400000000, 0x5445016f00000000,
+    0x88a9b05200000000, 0xec9c621400000000, 0x3070d32900000000,
+    0x24f6c69900000000, 0xf81a77a400000000, 0x9c2fa5e200000000,
+    0x40c314df00000000, 0xf525ff5900000000, 0x29c94e6400000000,
+    0x4dfc9c2200000000, 0x91102d1f00000000, 0x859638af00000000,
+    0x597a899200000000, 0x3d4f5bd400000000, 0xe1a3eae900000000,
+    0xdb0586b500000000, 0x07e9378800000000, 0x63dce5ce00000000,
+    0xbf3054f300000000, 0xabb6414300000000, 0x775af07e00000000,
+    0x136f223800000000, 0xcf83930500000000, 0x7a65788300000000,
+    0xa689c9be00000000, 0xc2bc1bf800000000, 0x1e50aac500000000,
+    0x0ad6bf7500000000, 0xd63a0e4800000000, 0xb20fdc0e00000000,
+    0x6ee36d3300000000, 0x99c47ad800000000, 0x4528cbe500000000,
+    0x211d19a300000000, 0xfdf1a89e00000000, 0xe977bd2e00000000,
+    0x359b0c1300000000, 0x51aede5500000000, 0x8d426f6800000000,
+    0x38a484ee00000000, 0xe44835d300000000, 0x807de79500000000,
+    0x5c9156a800000000, 0x4817431800000000, 0x94fbf22500000000,
+    0xf0ce206300000000, 0x2c22915e00000000, 0x5f877f6e00000000,
+    0x836bce5300000000, 0xe75e1c1500000000, 0x3bb2ad2800000000,
+    0x2f34b89800000000, 0xf3d809a500000000, 0x97eddbe300000000,
+    0x4b016ade00000000, 0xfee7815800000000, 0x220b306500000000,
+    0x463ee22300000000, 0x9ad2531e00000000, 0x8e5446ae00000000,
+    0x52b8f79300000000, 0x368d25d500000000, 0xea6194e800000000,
+    0x1d46830300000000, 0xc1aa323e00000000, 0xa59fe07800000000,
+    0x7973514500000000, 0x6df544f500000000, 0xb119f5c800000000,
+    0xd52c278e00000000, 0x09c096b300000000, 0xbc267d3500000000,
+    0x60cacc0800000000, 0x04ff1e4e00000000, 0xd813af7300000000,
+    0xcc95bac300000000, 0x10790bfe00000000, 0x744cd9b800000000,
+    0xa8a0688500000000}};
+
+#else /* W == 4 */
+
+local const z_crc_t FAR crc_braid_table[][256] = {
+   {0x00000000, 0x81256527, 0xd93bcc0f, 0x581ea928, 0x69069e5f,
+    0xe823fb78, 0xb03d5250, 0x31183777, 0xd20d3cbe, 0x53285999,
+    0x0b36f0b1, 0x8a139596, 0xbb0ba2e1, 0x3a2ec7c6, 0x62306eee,
+    0xe3150bc9, 0x7f6b7f3d, 0xfe4e1a1a, 0xa650b332, 0x2775d615,
+    0x166de162, 0x97488445, 0xcf562d6d, 0x4e73484a, 0xad664383,
+    0x2c4326a4, 0x745d8f8c, 0xf578eaab, 0xc460dddc, 0x4545b8fb,
+    0x1d5b11d3, 0x9c7e74f4, 0xfed6fe7a, 0x7ff39b5d, 0x27ed3275,
+    0xa6c85752, 0x97d06025, 0x16f50502, 0x4eebac2a, 0xcfcec90d,
+    0x2cdbc2c4, 0xadfea7e3, 0xf5e00ecb, 0x74c56bec, 0x45dd5c9b,
+    0xc4f839bc, 0x9ce69094, 0x1dc3f5b3, 0x81bd8147, 0x0098e460,
+    0x58864d48, 0xd9a3286f, 0xe8bb1f18, 0x699e7a3f, 0x3180d317,
+    0xb0a5b630, 0x53b0bdf9, 0xd295d8de, 0x8a8b71f6, 0x0bae14d1,
+    0x3ab623a6, 0xbb934681, 0xe38defa9, 0x62a88a8e, 0x26dcfab5,
+    0xa7f99f92, 0xffe736ba, 0x7ec2539d, 0x4fda64ea, 0xceff01cd,
+    0x96e1a8e5, 0x17c4cdc2, 0xf4d1c60b, 0x75f4a32c, 0x2dea0a04,
+    0xaccf6f23, 0x9dd75854, 0x1cf23d73, 0x44ec945b, 0xc5c9f17c,
+    0x59b78588, 0xd892e0af, 0x808c4987, 0x01a92ca0, 0x30b11bd7,
+    0xb1947ef0, 0xe98ad7d8, 0x68afb2ff, 0x8bbab936, 0x0a9fdc11,
+    0x52817539, 0xd3a4101e, 0xe2bc2769, 0x6399424e, 0x3b87eb66,
+    0xbaa28e41, 0xd80a04cf, 0x592f61e8, 0x0131c8c0, 0x8014ade7,
+    0xb10c9a90, 0x3029ffb7, 0x6837569f, 0xe91233b8, 0x0a073871,
+    0x8b225d56, 0xd33cf47e, 0x52199159, 0x6301a62e, 0xe224c309,
+    0xba3a6a21, 0x3b1f0f06, 0xa7617bf2, 0x26441ed5, 0x7e5ab7fd,
+    0xff7fd2da, 0xce67e5ad, 0x4f42808a, 0x175c29a2, 0x96794c85,
+    0x756c474c, 0xf449226b, 0xac578b43, 0x2d72ee64, 0x1c6ad913,
+    0x9d4fbc34, 0xc551151c, 0x4474703b, 0x4db9f56a, 0xcc9c904d,
+    0x94823965, 0x15a75c42, 0x24bf6b35, 0xa59a0e12, 0xfd84a73a,
+    0x7ca1c21d, 0x9fb4c9d4, 0x1e91acf3, 0x468f05db, 0xc7aa60fc,
+    0xf6b2578b, 0x779732ac, 0x2f899b84, 0xaeacfea3, 0x32d28a57,
+    0xb3f7ef70, 0xebe94658, 0x6acc237f, 0x5bd41408, 0xdaf1712f,
+    0x82efd807, 0x03cabd20, 0xe0dfb6e9, 0x61fad3ce, 0x39e47ae6,
+    0xb8c11fc1, 0x89d928b6, 0x08fc4d91, 0x50e2e4b9, 0xd1c7819e,
+    0xb36f0b10, 0x324a6e37, 0x6a54c71f, 0xeb71a238, 0xda69954f,
+    0x5b4cf068, 0x03525940, 0x82773c67, 0x616237ae, 0xe0475289,
+    0xb859fba1, 0x397c9e86, 0x0864a9f1, 0x8941ccd6, 0xd15f65fe,
+    0x507a00d9, 0xcc04742d, 0x4d21110a, 0x153fb822, 0x941add05,
+    0xa502ea72, 0x24278f55, 0x7c39267d, 0xfd1c435a, 0x1e094893,
+    0x9f2c2db4, 0xc732849c, 0x4617e1bb, 0x770fd6cc, 0xf62ab3eb,
+    0xae341ac3, 0x2f117fe4, 0x6b650fdf, 0xea406af8, 0xb25ec3d0,
+    0x337ba6f7, 0x02639180, 0x8346f4a7, 0xdb585d8f, 0x5a7d38a8,
+    0xb9683361, 0x384d5646, 0x6053ff6e, 0xe1769a49, 0xd06ead3e,
+    0x514bc819, 0x09556131, 0x88700416, 0x140e70e2, 0x952b15c5,
+    0xcd35bced, 0x4c10d9ca, 0x7d08eebd, 0xfc2d8b9a, 0xa43322b2,
+    0x25164795, 0xc6034c5c, 0x4726297b, 0x1f388053, 0x9e1de574,
+    0xaf05d203, 0x2e20b724, 0x763e1e0c, 0xf71b7b2b, 0x95b3f1a5,
+    0x14969482, 0x4c883daa, 0xcdad588d, 0xfcb56ffa, 0x7d900add,
+    0x258ea3f5, 0xa4abc6d2, 0x47becd1b, 0xc69ba83c, 0x9e850114,
+    0x1fa06433, 0x2eb85344, 0xaf9d3663, 0xf7839f4b, 0x76a6fa6c,
+    0xead88e98, 0x6bfdebbf, 0x33e34297, 0xb2c627b0, 0x83de10c7,
+    0x02fb75e0, 0x5ae5dcc8, 0xdbc0b9ef, 0x38d5b226, 0xb9f0d701,
+    0xe1ee7e29, 0x60cb1b0e, 0x51d32c79, 0xd0f6495e, 0x88e8e076,
+    0x09cd8551},
+   {0x00000000, 0x9b73ead4, 0xed96d3e9, 0x76e5393d, 0x005ca193,
+    0x9b2f4b47, 0xedca727a, 0x76b998ae, 0x00b94326, 0x9bcaa9f2,
+    0xed2f90cf, 0x765c7a1b, 0x00e5e2b5, 0x9b960861, 0xed73315c,
+    0x7600db88, 0x0172864c, 0x9a016c98, 0xece455a5, 0x7797bf71,
+    0x012e27df, 0x9a5dcd0b, 0xecb8f436, 0x77cb1ee2, 0x01cbc56a,
+    0x9ab82fbe, 0xec5d1683, 0x772efc57, 0x019764f9, 0x9ae48e2d,
+    0xec01b710, 0x77725dc4, 0x02e50c98, 0x9996e64c, 0xef73df71,
+    0x740035a5, 0x02b9ad0b, 0x99ca47df, 0xef2f7ee2, 0x745c9436,
+    0x025c4fbe, 0x992fa56a, 0xefca9c57, 0x74b97683, 0x0200ee2d,
+    0x997304f9, 0xef963dc4, 0x74e5d710, 0x03978ad4, 0x98e46000,
+    0xee01593d, 0x7572b3e9, 0x03cb2b47, 0x98b8c193, 0xee5df8ae,
+    0x752e127a, 0x032ec9f2, 0x985d2326, 0xeeb81a1b, 0x75cbf0cf,
+    0x03726861, 0x980182b5, 0xeee4bb88, 0x7597515c, 0x05ca1930,
+    0x9eb9f3e4, 0xe85ccad9, 0x732f200d, 0x0596b8a3, 0x9ee55277,
+    0xe8006b4a, 0x7373819e, 0x05735a16, 0x9e00b0c2, 0xe8e589ff,
+    0x7396632b, 0x052ffb85, 0x9e5c1151, 0xe8b9286c, 0x73cac2b8,
+    0x04b89f7c, 0x9fcb75a8, 0xe92e4c95, 0x725da641, 0x04e43eef,
+    0x9f97d43b, 0xe972ed06, 0x720107d2, 0x0401dc5a, 0x9f72368e,
+    0xe9970fb3, 0x72e4e567, 0x045d7dc9, 0x9f2e971d, 0xe9cbae20,
+    0x72b844f4, 0x072f15a8, 0x9c5cff7c, 0xeab9c641, 0x71ca2c95,
+    0x0773b43b, 0x9c005eef, 0xeae567d2, 0x71968d06, 0x0796568e,
+    0x9ce5bc5a, 0xea008567, 0x71736fb3, 0x07caf71d, 0x9cb91dc9,
+    0xea5c24f4, 0x712fce20, 0x065d93e4, 0x9d2e7930, 0xebcb400d,
+    0x70b8aad9, 0x06013277, 0x9d72d8a3, 0xeb97e19e, 0x70e40b4a,
+    0x06e4d0c2, 0x9d973a16, 0xeb72032b, 0x7001e9ff, 0x06b87151,
+    0x9dcb9b85, 0xeb2ea2b8, 0x705d486c, 0x0b943260, 0x90e7d8b4,
+    0xe602e189, 0x7d710b5d, 0x0bc893f3, 0x90bb7927, 0xe65e401a,
+    0x7d2daace, 0x0b2d7146, 0x905e9b92, 0xe6bba2af, 0x7dc8487b,
+    0x0b71d0d5, 0x90023a01, 0xe6e7033c, 0x7d94e9e8, 0x0ae6b42c,
+    0x91955ef8, 0xe77067c5, 0x7c038d11, 0x0aba15bf, 0x91c9ff6b,
+    0xe72cc656, 0x7c5f2c82, 0x0a5ff70a, 0x912c1dde, 0xe7c924e3,
+    0x7cbace37, 0x0a035699, 0x9170bc4d, 0xe7958570, 0x7ce66fa4,
+    0x09713ef8, 0x9202d42c, 0xe4e7ed11, 0x7f9407c5, 0x092d9f6b,
+    0x925e75bf, 0xe4bb4c82, 0x7fc8a656, 0x09c87dde, 0x92bb970a,
+    0xe45eae37, 0x7f2d44e3, 0x0994dc4d, 0x92e73699, 0xe4020fa4,
+    0x7f71e570, 0x0803b8b4, 0x93705260, 0xe5956b5d, 0x7ee68189,
+    0x085f1927, 0x932cf3f3, 0xe5c9cace, 0x7eba201a, 0x08bafb92,
+    0x93c91146, 0xe52c287b, 0x7e5fc2af, 0x08e65a01, 0x9395b0d5,
+    0xe57089e8, 0x7e03633c, 0x0e5e2b50, 0x952dc184, 0xe3c8f8b9,
+    0x78bb126d, 0x0e028ac3, 0x95716017, 0xe394592a, 0x78e7b3fe,
+    0x0ee76876, 0x959482a2, 0xe371bb9f, 0x7802514b, 0x0ebbc9e5,
+    0x95c82331, 0xe32d1a0c, 0x785ef0d8, 0x0f2cad1c, 0x945f47c8,
+    0xe2ba7ef5, 0x79c99421, 0x0f700c8f, 0x9403e65b, 0xe2e6df66,
+    0x799535b2, 0x0f95ee3a, 0x94e604ee, 0xe2033dd3, 0x7970d707,
+    0x0fc94fa9, 0x94baa57d, 0xe25f9c40, 0x792c7694, 0x0cbb27c8,
+    0x97c8cd1c, 0xe12df421, 0x7a5e1ef5, 0x0ce7865b, 0x97946c8f,
+    0xe17155b2, 0x7a02bf66, 0x0c0264ee, 0x97718e3a, 0xe194b707,
+    0x7ae75dd3, 0x0c5ec57d, 0x972d2fa9, 0xe1c81694, 0x7abbfc40,
+    0x0dc9a184, 0x96ba4b50, 0xe05f726d, 0x7b2c98b9, 0x0d950017,
+    0x96e6eac3, 0xe003d3fe, 0x7b70392a, 0x0d70e2a2, 0x96030876,
+    0xe0e6314b, 0x7b95db9f, 0x0d2c4331, 0x965fa9e5, 0xe0ba90d8,
+    0x7bc97a0c},
+   {0x00000000, 0x172864c0, 0x2e50c980, 0x3978ad40, 0x5ca19300,
+    0x4b89f7c0, 0x72f15a80, 0x65d93e40, 0xb9432600, 0xae6b42c0,
+    0x9713ef80, 0x803b8b40, 0xe5e2b500, 0xf2cad1c0, 0xcbb27c80,
+    0xdc9a1840, 0xa9f74a41, 0xbedf2e81, 0x87a783c1, 0x908fe701,
+    0xf556d941, 0xe27ebd81, 0xdb0610c1, 0xcc2e7401, 0x10b46c41,
+    0x079c0881, 0x3ee4a5c1, 0x29ccc101, 0x4c15ff41, 0x5b3d9b81,
+    0x624536c1, 0x756d5201, 0x889f92c3, 0x9fb7f603, 0xa6cf5b43,
+    0xb1e73f83, 0xd43e01c3, 0xc3166503, 0xfa6ec843, 0xed46ac83,
+    0x31dcb4c3, 0x26f4d003, 0x1f8c7d43, 0x08a41983, 0x6d7d27c3,
+    0x7a554303, 0x432dee43, 0x54058a83, 0x2168d882, 0x3640bc42,
+    0x0f381102, 0x181075c2, 0x7dc94b82, 0x6ae12f42, 0x53998202,
+    0x44b1e6c2, 0x982bfe82, 0x8f039a42, 0xb67b3702, 0xa15353c2,
+    0xc48a6d82, 0xd3a20942, 0xeadaa402, 0xfdf2c0c2, 0xca4e23c7,
+    0xdd664707, 0xe41eea47, 0xf3368e87, 0x96efb0c7, 0x81c7d407,
+    0xb8bf7947, 0xaf971d87, 0x730d05c7, 0x64256107, 0x5d5dcc47,
+    0x4a75a887, 0x2fac96c7, 0x3884f207, 0x01fc5f47, 0x16d43b87,
+    0x63b96986, 0x74910d46, 0x4de9a006, 0x5ac1c4c6, 0x3f18fa86,
+    0x28309e46, 0x11483306, 0x066057c6, 0xdafa4f86, 0xcdd22b46,
+    0xf4aa8606, 0xe382e2c6, 0x865bdc86, 0x9173b846, 0xa80b1506,
+    0xbf2371c6, 0x42d1b104, 0x55f9d5c4, 0x6c817884, 0x7ba91c44,
+    0x1e702204, 0x095846c4, 0x3020eb84, 0x27088f44, 0xfb929704,
+    0xecbaf3c4, 0xd5c25e84, 0xc2ea3a44, 0xa7330404, 0xb01b60c4,
+    0x8963cd84, 0x9e4ba944, 0xeb26fb45, 0xfc0e9f85, 0xc57632c5,
+    0xd25e5605, 0xb7876845, 0xa0af0c85, 0x99d7a1c5, 0x8effc505,
+    0x5265dd45, 0x454db985, 0x7c3514c5, 0x6b1d7005, 0x0ec44e45,
+    0x19ec2a85, 0x209487c5, 0x37bce305, 0x4fed41cf, 0x58c5250f,
+    0x61bd884f, 0x7695ec8f, 0x134cd2cf, 0x0464b60f, 0x3d1c1b4f,
+    0x2a347f8f, 0xf6ae67cf, 0xe186030f, 0xd8feae4f, 0xcfd6ca8f,
+    0xaa0ff4cf, 0xbd27900f, 0x845f3d4f, 0x9377598f, 0xe61a0b8e,
+    0xf1326f4e, 0xc84ac20e, 0xdf62a6ce, 0xbabb988e, 0xad93fc4e,
+    0x94eb510e, 0x83c335ce, 0x5f592d8e, 0x4871494e, 0x7109e40e,
+    0x662180ce, 0x03f8be8e, 0x14d0da4e, 0x2da8770e, 0x3a8013ce,
+    0xc772d30c, 0xd05ab7cc, 0xe9221a8c, 0xfe0a7e4c, 0x9bd3400c,
+    0x8cfb24cc, 0xb583898c, 0xa2abed4c, 0x7e31f50c, 0x691991cc,
+    0x50613c8c, 0x4749584c, 0x2290660c, 0x35b802cc, 0x0cc0af8c,
+    0x1be8cb4c, 0x6e85994d, 0x79adfd8d, 0x40d550cd, 0x57fd340d,
+    0x32240a4d, 0x250c6e8d, 0x1c74c3cd, 0x0b5ca70d, 0xd7c6bf4d,
+    0xc0eedb8d, 0xf99676cd, 0xeebe120d, 0x8b672c4d, 0x9c4f488d,
+    0xa537e5cd, 0xb21f810d, 0x85a36208, 0x928b06c8, 0xabf3ab88,
+    0xbcdbcf48, 0xd902f108, 0xce2a95c8, 0xf7523888, 0xe07a5c48,
+    0x3ce04408, 0x2bc820c8, 0x12b08d88, 0x0598e948, 0x6041d708,
+    0x7769b3c8, 0x4e111e88, 0x59397a48, 0x2c542849, 0x3b7c4c89,
+    0x0204e1c9, 0x152c8509, 0x70f5bb49, 0x67dddf89, 0x5ea572c9,
+    0x498d1609, 0x95170e49, 0x823f6a89, 0xbb47c7c9, 0xac6fa309,
+    0xc9b69d49, 0xde9ef989, 0xe7e654c9, 0xf0ce3009, 0x0d3cf0cb,
+    0x1a14940b, 0x236c394b, 0x34445d8b, 0x519d63cb, 0x46b5070b,
+    0x7fcdaa4b, 0x68e5ce8b, 0xb47fd6cb, 0xa357b20b, 0x9a2f1f4b,
+    0x8d077b8b, 0xe8de45cb, 0xfff6210b, 0xc68e8c4b, 0xd1a6e88b,
+    0xa4cbba8a, 0xb3e3de4a, 0x8a9b730a, 0x9db317ca, 0xf86a298a,
+    0xef424d4a, 0xd63ae00a, 0xc11284ca, 0x1d889c8a, 0x0aa0f84a,
+    0x33d8550a, 0x24f031ca, 0x41290f8a, 0x56016b4a, 0x6f79c60a,
+    0x7851a2ca},
+   {0x00000000, 0x9fda839e, 0xe4c4017d, 0x7b1e82e3, 0x12f904bb,
+    0x8d238725, 0xf63d05c6, 0x69e78658, 0x25f20976, 0xba288ae8,
+    0xc136080b, 0x5eec8b95, 0x370b0dcd, 0xa8d18e53, 0xd3cf0cb0,
+    0x4c158f2e, 0x4be412ec, 0xd43e9172, 0xaf201391, 0x30fa900f,
+    0x591d1657, 0xc6c795c9, 0xbdd9172a, 0x220394b4, 0x6e161b9a,
+    0xf1cc9804, 0x8ad21ae7, 0x15089979, 0x7cef1f21, 0xe3359cbf,
+    0x982b1e5c, 0x07f19dc2, 0x97c825d8, 0x0812a646, 0x730c24a5,
+    0xecd6a73b, 0x85312163, 0x1aeba2fd, 0x61f5201e, 0xfe2fa380,
+    0xb23a2cae, 0x2de0af30, 0x56fe2dd3, 0xc924ae4d, 0xa0c32815,
+    0x3f19ab8b, 0x44072968, 0xdbddaaf6, 0xdc2c3734, 0x43f6b4aa,
+    0x38e83649, 0xa732b5d7, 0xced5338f, 0x510fb011, 0x2a1132f2,
+    0xb5cbb16c, 0xf9de3e42, 0x6604bddc, 0x1d1a3f3f, 0x82c0bca1,
+    0xeb273af9, 0x74fdb967, 0x0fe33b84, 0x9039b81a, 0xf4e14df1,
+    0x6b3bce6f, 0x10254c8c, 0x8fffcf12, 0xe618494a, 0x79c2cad4,
+    0x02dc4837, 0x9d06cba9, 0xd1134487, 0x4ec9c719, 0x35d745fa,
+    0xaa0dc664, 0xc3ea403c, 0x5c30c3a2, 0x272e4141, 0xb8f4c2df,
+    0xbf055f1d, 0x20dfdc83, 0x5bc15e60, 0xc41bddfe, 0xadfc5ba6,
+    0x3226d838, 0x49385adb, 0xd6e2d945, 0x9af7566b, 0x052dd5f5,
+    0x7e335716, 0xe1e9d488, 0x880e52d0, 0x17d4d14e, 0x6cca53ad,
+    0xf310d033, 0x63296829, 0xfcf3ebb7, 0x87ed6954, 0x1837eaca,
+    0x71d06c92, 0xee0aef0c, 0x95146def, 0x0aceee71, 0x46db615f,
+    0xd901e2c1, 0xa21f6022, 0x3dc5e3bc, 0x542265e4, 0xcbf8e67a,
+    0xb0e66499, 0x2f3ce707, 0x28cd7ac5, 0xb717f95b, 0xcc097bb8,
+    0x53d3f826, 0x3a347e7e, 0xa5eefde0, 0xdef07f03, 0x412afc9d,
+    0x0d3f73b3, 0x92e5f02d, 0xe9fb72ce, 0x7621f150, 0x1fc67708,
+    0x801cf496, 0xfb027675, 0x64d8f5eb, 0x32b39da3, 0xad691e3d,
+    0xd6779cde, 0x49ad1f40, 0x204a9918, 0xbf901a86, 0xc48e9865,
+    0x5b541bfb, 0x174194d5, 0x889b174b, 0xf38595a8, 0x6c5f1636,
+    0x05b8906e, 0x9a6213f0, 0xe17c9113, 0x7ea6128d, 0x79578f4f,
+    0xe68d0cd1, 0x9d938e32, 0x02490dac, 0x6bae8bf4, 0xf474086a,
+    0x8f6a8a89, 0x10b00917, 0x5ca58639, 0xc37f05a7, 0xb8618744,
+    0x27bb04da, 0x4e5c8282, 0xd186011c, 0xaa9883ff, 0x35420061,
+    0xa57bb87b, 0x3aa13be5, 0x41bfb906, 0xde653a98, 0xb782bcc0,
+    0x28583f5e, 0x5346bdbd, 0xcc9c3e23, 0x8089b10d, 0x1f533293,
+    0x644db070, 0xfb9733ee, 0x9270b5b6, 0x0daa3628, 0x76b4b4cb,
+    0xe96e3755, 0xee9faa97, 0x71452909, 0x0a5babea, 0x95812874,
+    0xfc66ae2c, 0x63bc2db2, 0x18a2af51, 0x87782ccf, 0xcb6da3e1,
+    0x54b7207f, 0x2fa9a29c, 0xb0732102, 0xd994a75a, 0x464e24c4,
+    0x3d50a627, 0xa28a25b9, 0xc652d052, 0x598853cc, 0x2296d12f,
+    0xbd4c52b1, 0xd4abd4e9, 0x4b715777, 0x306fd594, 0xafb5560a,
+    0xe3a0d924, 0x7c7a5aba, 0x0764d859, 0x98be5bc7, 0xf159dd9f,
+    0x6e835e01, 0x159ddce2, 0x8a475f7c, 0x8db6c2be, 0x126c4120,
+    0x6972c3c3, 0xf6a8405d, 0x9f4fc605, 0x0095459b, 0x7b8bc778,
+    0xe45144e6, 0xa844cbc8, 0x379e4856, 0x4c80cab5, 0xd35a492b,
+    0xbabdcf73, 0x25674ced, 0x5e79ce0e, 0xc1a34d90, 0x519af58a,
+    0xce407614, 0xb55ef4f7, 0x2a847769, 0x4363f131, 0xdcb972af,
+    0xa7a7f04c, 0x387d73d2, 0x7468fcfc, 0xebb27f62, 0x90acfd81,
+    0x0f767e1f, 0x6691f847, 0xf94b7bd9, 0x8255f93a, 0x1d8f7aa4,
+    0x1a7ee766, 0x85a464f8, 0xfebae61b, 0x61606585, 0x0887e3dd,
+    0x975d6043, 0xec43e2a0, 0x7399613e, 0x3f8cee10, 0xa0566d8e,
+    0xdb48ef6d, 0x44926cf3, 0x2d75eaab, 0xb2af6935, 0xc9b1ebd6,
+    0x566b6848}};
+
+local const z_word_t FAR crc_braid_big_table[][256] = {
+   {0x00000000, 0x9e83da9f, 0x7d01c4e4, 0xe3821e7b, 0xbb04f912,
+    0x2587238d, 0xc6053df6, 0x5886e769, 0x7609f225, 0xe88a28ba,
+    0x0b0836c1, 0x958bec5e, 0xcd0d0b37, 0x538ed1a8, 0xb00ccfd3,
+    0x2e8f154c, 0xec12e44b, 0x72913ed4, 0x911320af, 0x0f90fa30,
+    0x57161d59, 0xc995c7c6, 0x2a17d9bd, 0xb4940322, 0x9a1b166e,
+    0x0498ccf1, 0xe71ad28a, 0x79990815, 0x211fef7c, 0xbf9c35e3,
+    0x5c1e2b98, 0xc29df107, 0xd825c897, 0x46a61208, 0xa5240c73,
+    0x3ba7d6ec, 0x63213185, 0xfda2eb1a, 0x1e20f561, 0x80a32ffe,
+    0xae2c3ab2, 0x30afe02d, 0xd32dfe56, 0x4dae24c9, 0x1528c3a0,
+    0x8bab193f, 0x68290744, 0xf6aadddb, 0x34372cdc, 0xaab4f643,
+    0x4936e838, 0xd7b532a7, 0x8f33d5ce, 0x11b00f51, 0xf232112a,
+    0x6cb1cbb5, 0x423edef9, 0xdcbd0466, 0x3f3f1a1d, 0xa1bcc082,
+    0xf93a27eb, 0x67b9fd74, 0x843be30f, 0x1ab83990, 0xf14de1f4,
+    0x6fce3b6b, 0x8c4c2510, 0x12cfff8f, 0x4a4918e6, 0xd4cac279,
+    0x3748dc02, 0xa9cb069d, 0x874413d1, 0x19c7c94e, 0xfa45d735,
+    0x64c60daa, 0x3c40eac3, 0xa2c3305c, 0x41412e27, 0xdfc2f4b8,
+    0x1d5f05bf, 0x83dcdf20, 0x605ec15b, 0xfedd1bc4, 0xa65bfcad,
+    0x38d82632, 0xdb5a3849, 0x45d9e2d6, 0x6b56f79a, 0xf5d52d05,
+    0x1657337e, 0x88d4e9e1, 0xd0520e88, 0x4ed1d417, 0xad53ca6c,
+    0x33d010f3, 0x29682963, 0xb7ebf3fc, 0x5469ed87, 0xcaea3718,
+    0x926cd071, 0x0cef0aee, 0xef6d1495, 0x71eece0a, 0x5f61db46,
+    0xc1e201d9, 0x22601fa2, 0xbce3c53d, 0xe4652254, 0x7ae6f8cb,
+    0x9964e6b0, 0x07e73c2f, 0xc57acd28, 0x5bf917b7, 0xb87b09cc,
+    0x26f8d353, 0x7e7e343a, 0xe0fdeea5, 0x037ff0de, 0x9dfc2a41,
+    0xb3733f0d, 0x2df0e592, 0xce72fbe9, 0x50f12176, 0x0877c61f,
+    0x96f41c80, 0x757602fb, 0xebf5d864, 0xa39db332, 0x3d1e69ad,
+    0xde9c77d6, 0x401fad49, 0x18994a20, 0x861a90bf, 0x65988ec4,
+    0xfb1b545b, 0xd5944117, 0x4b179b88, 0xa89585f3, 0x36165f6c,
+    0x6e90b805, 0xf013629a, 0x13917ce1, 0x8d12a67e, 0x4f8f5779,
+    0xd10c8de6, 0x328e939d, 0xac0d4902, 0xf48bae6b, 0x6a0874f4,
+    0x898a6a8f, 0x1709b010, 0x3986a55c, 0xa7057fc3, 0x448761b8,
+    0xda04bb27, 0x82825c4e, 0x1c0186d1, 0xff8398aa, 0x61004235,
+    0x7bb87ba5, 0xe53ba13a, 0x06b9bf41, 0x983a65de, 0xc0bc82b7,
+    0x5e3f5828, 0xbdbd4653, 0x233e9ccc, 0x0db18980, 0x9332531f,
+    0x70b04d64, 0xee3397fb, 0xb6b57092, 0x2836aa0d, 0xcbb4b476,
+    0x55376ee9, 0x97aa9fee, 0x09294571, 0xeaab5b0a, 0x74288195,
+    0x2cae66fc, 0xb22dbc63, 0x51afa218, 0xcf2c7887, 0xe1a36dcb,
+    0x7f20b754, 0x9ca2a92f, 0x022173b0, 0x5aa794d9, 0xc4244e46,
+    0x27a6503d, 0xb9258aa2, 0x52d052c6, 0xcc538859, 0x2fd19622,
+    0xb1524cbd, 0xe9d4abd4, 0x7757714b, 0x94d56f30, 0x0a56b5af,
+    0x24d9a0e3, 0xba5a7a7c, 0x59d86407, 0xc75bbe98, 0x9fdd59f1,
+    0x015e836e, 0xe2dc9d15, 0x7c5f478a, 0xbec2b68d, 0x20416c12,
+    0xc3c37269, 0x5d40a8f6, 0x05c64f9f, 0x9b459500, 0x78c78b7b,
+    0xe64451e4, 0xc8cb44a8, 0x56489e37, 0xb5ca804c, 0x2b495ad3,
+    0x73cfbdba, 0xed4c6725, 0x0ece795e, 0x904da3c1, 0x8af59a51,
+    0x147640ce, 0xf7f45eb5, 0x6977842a, 0x31f16343, 0xaf72b9dc,
+    0x4cf0a7a7, 0xd2737d38, 0xfcfc6874, 0x627fb2eb, 0x81fdac90,
+    0x1f7e760f, 0x47f89166, 0xd97b4bf9, 0x3af95582, 0xa47a8f1d,
+    0x66e77e1a, 0xf864a485, 0x1be6bafe, 0x85656061, 0xdde38708,
+    0x43605d97, 0xa0e243ec, 0x3e619973, 0x10ee8c3f, 0x8e6d56a0,
+    0x6def48db, 0xf36c9244, 0xabea752d, 0x3569afb2, 0xd6ebb1c9,
+    0x48686b56},
+   {0x00000000, 0xc0642817, 0x80c9502e, 0x40ad7839, 0x0093a15c,
+    0xc0f7894b, 0x805af172, 0x403ed965, 0x002643b9, 0xc0426bae,
+    0x80ef1397, 0x408b3b80, 0x00b5e2e5, 0xc0d1caf2, 0x807cb2cb,
+    0x40189adc, 0x414af7a9, 0x812edfbe, 0xc183a787, 0x01e78f90,
+    0x41d956f5, 0x81bd7ee2, 0xc11006db, 0x01742ecc, 0x416cb410,
+    0x81089c07, 0xc1a5e43e, 0x01c1cc29, 0x41ff154c, 0x819b3d5b,
+    0xc1364562, 0x01526d75, 0xc3929f88, 0x03f6b79f, 0x435bcfa6,
+    0x833fe7b1, 0xc3013ed4, 0x036516c3, 0x43c86efa, 0x83ac46ed,
+    0xc3b4dc31, 0x03d0f426, 0x437d8c1f, 0x8319a408, 0xc3277d6d,
+    0x0343557a, 0x43ee2d43, 0x838a0554, 0x82d86821, 0x42bc4036,
+    0x0211380f, 0xc2751018, 0x824bc97d, 0x422fe16a, 0x02829953,
+    0xc2e6b144, 0x82fe2b98, 0x429a038f, 0x02377bb6, 0xc25353a1,
+    0x826d8ac4, 0x4209a2d3, 0x02a4daea, 0xc2c0f2fd, 0xc7234eca,
+    0x074766dd, 0x47ea1ee4, 0x878e36f3, 0xc7b0ef96, 0x07d4c781,
+    0x4779bfb8, 0x871d97af, 0xc7050d73, 0x07612564, 0x47cc5d5d,
+    0x87a8754a, 0xc796ac2f, 0x07f28438, 0x475ffc01, 0x873bd416,
+    0x8669b963, 0x460d9174, 0x06a0e94d, 0xc6c4c15a, 0x86fa183f,
+    0x469e3028, 0x06334811, 0xc6576006, 0x864ffada, 0x462bd2cd,
+    0x0686aaf4, 0xc6e282e3, 0x86dc5b86, 0x46b87391, 0x06150ba8,
+    0xc67123bf, 0x04b1d142, 0xc4d5f955, 0x8478816c, 0x441ca97b,
+    0x0422701e, 0xc4465809, 0x84eb2030, 0x448f0827, 0x049792fb,
+    0xc4f3baec, 0x845ec2d5, 0x443aeac2, 0x040433a7, 0xc4601bb0,
+    0x84cd6389, 0x44a94b9e, 0x45fb26eb, 0x859f0efc, 0xc53276c5,
+    0x05565ed2, 0x456887b7, 0x850cafa0, 0xc5a1d799, 0x05c5ff8e,
+    0x45dd6552, 0x85b94d45, 0xc514357c, 0x05701d6b, 0x454ec40e,
+    0x852aec19, 0xc5879420, 0x05e3bc37, 0xcf41ed4f, 0x0f25c558,
+    0x4f88bd61, 0x8fec9576, 0xcfd24c13, 0x0fb66404, 0x4f1b1c3d,
+    0x8f7f342a, 0xcf67aef6, 0x0f0386e1, 0x4faefed8, 0x8fcad6cf,
+    0xcff40faa, 0x0f9027bd, 0x4f3d5f84, 0x8f597793, 0x8e0b1ae6,
+    0x4e6f32f1, 0x0ec24ac8, 0xcea662df, 0x8e98bbba, 0x4efc93ad,
+    0x0e51eb94, 0xce35c383, 0x8e2d595f, 0x4e497148, 0x0ee40971,
+    0xce802166, 0x8ebef803, 0x4edad014, 0x0e77a82d, 0xce13803a,
+    0x0cd372c7, 0xccb75ad0, 0x8c1a22e9, 0x4c7e0afe, 0x0c40d39b,
+    0xcc24fb8c, 0x8c8983b5, 0x4cedaba2, 0x0cf5317e, 0xcc911969,
+    0x8c3c6150, 0x4c584947, 0x0c669022, 0xcc02b835, 0x8cafc00c,
+    0x4ccbe81b, 0x4d99856e, 0x8dfdad79, 0xcd50d540, 0x0d34fd57,
+    0x4d0a2432, 0x8d6e0c25, 0xcdc3741c, 0x0da75c0b, 0x4dbfc6d7,
+    0x8ddbeec0, 0xcd7696f9, 0x0d12beee, 0x4d2c678b, 0x8d484f9c,
+    0xcde537a5, 0x0d811fb2, 0x0862a385, 0xc8068b92, 0x88abf3ab,
+    0x48cfdbbc, 0x08f102d9, 0xc8952ace, 0x883852f7, 0x485c7ae0,
+    0x0844e03c, 0xc820c82b, 0x888db012, 0x48e99805, 0x08d74160,
+    0xc8b36977, 0x881e114e, 0x487a3959, 0x4928542c, 0x894c7c3b,
+    0xc9e10402, 0x09852c15, 0x49bbf570, 0x89dfdd67, 0xc972a55e,
+    0x09168d49, 0x490e1795, 0x896a3f82, 0xc9c747bb, 0x09a36fac,
+    0x499db6c9, 0x89f99ede, 0xc954e6e7, 0x0930cef0, 0xcbf03c0d,
+    0x0b94141a, 0x4b396c23, 0x8b5d4434, 0xcb639d51, 0x0b07b546,
+    0x4baacd7f, 0x8bcee568, 0xcbd67fb4, 0x0bb257a3, 0x4b1f2f9a,
+    0x8b7b078d, 0xcb45dee8, 0x0b21f6ff, 0x4b8c8ec6, 0x8be8a6d1,
+    0x8abacba4, 0x4adee3b3, 0x0a739b8a, 0xca17b39d, 0x8a296af8,
+    0x4a4d42ef, 0x0ae03ad6, 0xca8412c1, 0x8a9c881d, 0x4af8a00a,
+    0x0a55d833, 0xca31f024, 0x8a0f2941, 0x4a6b0156, 0x0ac6796f,
+    0xcaa25178},
+   {0x00000000, 0xd4ea739b, 0xe9d396ed, 0x3d39e576, 0x93a15c00,
+    0x474b2f9b, 0x7a72caed, 0xae98b976, 0x2643b900, 0xf2a9ca9b,
+    0xcf902fed, 0x1b7a5c76, 0xb5e2e500, 0x6108969b, 0x5c3173ed,
+    0x88db0076, 0x4c867201, 0x986c019a, 0xa555e4ec, 0x71bf9777,
+    0xdf272e01, 0x0bcd5d9a, 0x36f4b8ec, 0xe21ecb77, 0x6ac5cb01,
+    0xbe2fb89a, 0x83165dec, 0x57fc2e77, 0xf9649701, 0x2d8ee49a,
+    0x10b701ec, 0xc45d7277, 0x980ce502, 0x4ce69699, 0x71df73ef,
+    0xa5350074, 0x0badb902, 0xdf47ca99, 0xe27e2fef, 0x36945c74,
+    0xbe4f5c02, 0x6aa52f99, 0x579ccaef, 0x8376b974, 0x2dee0002,
+    0xf9047399, 0xc43d96ef, 0x10d7e574, 0xd48a9703, 0x0060e498,
+    0x3d5901ee, 0xe9b37275, 0x472bcb03, 0x93c1b898, 0xaef85dee,
+    0x7a122e75, 0xf2c92e03, 0x26235d98, 0x1b1ab8ee, 0xcff0cb75,
+    0x61687203, 0xb5820198, 0x88bbe4ee, 0x5c519775, 0x3019ca05,
+    0xe4f3b99e, 0xd9ca5ce8, 0x0d202f73, 0xa3b89605, 0x7752e59e,
+    0x4a6b00e8, 0x9e817373, 0x165a7305, 0xc2b0009e, 0xff89e5e8,
+    0x2b639673, 0x85fb2f05, 0x51115c9e, 0x6c28b9e8, 0xb8c2ca73,
+    0x7c9fb804, 0xa875cb9f, 0x954c2ee9, 0x41a65d72, 0xef3ee404,
+    0x3bd4979f, 0x06ed72e9, 0xd2070172, 0x5adc0104, 0x8e36729f,
+    0xb30f97e9, 0x67e5e472, 0xc97d5d04, 0x1d972e9f, 0x20aecbe9,
+    0xf444b872, 0xa8152f07, 0x7cff5c9c, 0x41c6b9ea, 0x952cca71,
+    0x3bb47307, 0xef5e009c, 0xd267e5ea, 0x068d9671, 0x8e569607,
+    0x5abce59c, 0x678500ea, 0xb36f7371, 0x1df7ca07, 0xc91db99c,
+    0xf4245cea, 0x20ce2f71, 0xe4935d06, 0x30792e9d, 0x0d40cbeb,
+    0xd9aab870, 0x77320106, 0xa3d8729d, 0x9ee197eb, 0x4a0be470,
+    0xc2d0e406, 0x163a979d, 0x2b0372eb, 0xffe90170, 0x5171b806,
+    0x859bcb9d, 0xb8a22eeb, 0x6c485d70, 0x6032940b, 0xb4d8e790,
+    0x89e102e6, 0x5d0b717d, 0xf393c80b, 0x2779bb90, 0x1a405ee6,
+    0xceaa2d7d, 0x46712d0b, 0x929b5e90, 0xafa2bbe6, 0x7b48c87d,
+    0xd5d0710b, 0x013a0290, 0x3c03e7e6, 0xe8e9947d, 0x2cb4e60a,
+    0xf85e9591, 0xc56770e7, 0x118d037c, 0xbf15ba0a, 0x6bffc991,
+    0x56c62ce7, 0x822c5f7c, 0x0af75f0a, 0xde1d2c91, 0xe324c9e7,
+    0x37ceba7c, 0x9956030a, 0x4dbc7091, 0x708595e7, 0xa46fe67c,
+    0xf83e7109, 0x2cd40292, 0x11ede7e4, 0xc507947f, 0x6b9f2d09,
+    0xbf755e92, 0x824cbbe4, 0x56a6c87f, 0xde7dc809, 0x0a97bb92,
+    0x37ae5ee4, 0xe3442d7f, 0x4ddc9409, 0x9936e792, 0xa40f02e4,
+    0x70e5717f, 0xb4b80308, 0x60527093, 0x5d6b95e5, 0x8981e67e,
+    0x27195f08, 0xf3f32c93, 0xcecac9e5, 0x1a20ba7e, 0x92fbba08,
+    0x4611c993, 0x7b282ce5, 0xafc25f7e, 0x015ae608, 0xd5b09593,
+    0xe88970e5, 0x3c63037e, 0x502b5e0e, 0x84c12d95, 0xb9f8c8e3,
+    0x6d12bb78, 0xc38a020e, 0x17607195, 0x2a5994e3, 0xfeb3e778,
+    0x7668e70e, 0xa2829495, 0x9fbb71e3, 0x4b510278, 0xe5c9bb0e,
+    0x3123c895, 0x0c1a2de3, 0xd8f05e78, 0x1cad2c0f, 0xc8475f94,
+    0xf57ebae2, 0x2194c979, 0x8f0c700f, 0x5be60394, 0x66dfe6e2,
+    0xb2359579, 0x3aee950f, 0xee04e694, 0xd33d03e2, 0x07d77079,
+    0xa94fc90f, 0x7da5ba94, 0x409c5fe2, 0x94762c79, 0xc827bb0c,
+    0x1ccdc897, 0x21f42de1, 0xf51e5e7a, 0x5b86e70c, 0x8f6c9497,
+    0xb25571e1, 0x66bf027a, 0xee64020c, 0x3a8e7197, 0x07b794e1,
+    0xd35de77a, 0x7dc55e0c, 0xa92f2d97, 0x9416c8e1, 0x40fcbb7a,
+    0x84a1c90d, 0x504bba96, 0x6d725fe0, 0xb9982c7b, 0x1700950d,
+    0xc3eae696, 0xfed303e0, 0x2a39707b, 0xa2e2700d, 0x76080396,
+    0x4b31e6e0, 0x9fdb957b, 0x31432c0d, 0xe5a95f96, 0xd890bae0,
+    0x0c7ac97b},
+   {0x00000000, 0x27652581, 0x0fcc3bd9, 0x28a91e58, 0x5f9e0669,
+    0x78fb23e8, 0x50523db0, 0x77371831, 0xbe3c0dd2, 0x99592853,
+    0xb1f0360b, 0x9695138a, 0xe1a20bbb, 0xc6c72e3a, 0xee6e3062,
+    0xc90b15e3, 0x3d7f6b7f, 0x1a1a4efe, 0x32b350a6, 0x15d67527,
+    0x62e16d16, 0x45844897, 0x6d2d56cf, 0x4a48734e, 0x834366ad,
+    0xa426432c, 0x8c8f5d74, 0xabea78f5, 0xdcdd60c4, 0xfbb84545,
+    0xd3115b1d, 0xf4747e9c, 0x7afed6fe, 0x5d9bf37f, 0x7532ed27,
+    0x5257c8a6, 0x2560d097, 0x0205f516, 0x2aaceb4e, 0x0dc9cecf,
+    0xc4c2db2c, 0xe3a7fead, 0xcb0ee0f5, 0xec6bc574, 0x9b5cdd45,
+    0xbc39f8c4, 0x9490e69c, 0xb3f5c31d, 0x4781bd81, 0x60e49800,
+    0x484d8658, 0x6f28a3d9, 0x181fbbe8, 0x3f7a9e69, 0x17d38031,
+    0x30b6a5b0, 0xf9bdb053, 0xded895d2, 0xf6718b8a, 0xd114ae0b,
+    0xa623b63a, 0x814693bb, 0xa9ef8de3, 0x8e8aa862, 0xb5fadc26,
+    0x929ff9a7, 0xba36e7ff, 0x9d53c27e, 0xea64da4f, 0xcd01ffce,
+    0xe5a8e196, 0xc2cdc417, 0x0bc6d1f4, 0x2ca3f475, 0x040aea2d,
+    0x236fcfac, 0x5458d79d, 0x733df21c, 0x5b94ec44, 0x7cf1c9c5,
+    0x8885b759, 0xafe092d8, 0x87498c80, 0xa02ca901, 0xd71bb130,
+    0xf07e94b1, 0xd8d78ae9, 0xffb2af68, 0x36b9ba8b, 0x11dc9f0a,
+    0x39758152, 0x1e10a4d3, 0x6927bce2, 0x4e429963, 0x66eb873b,
+    0x418ea2ba, 0xcf040ad8, 0xe8612f59, 0xc0c83101, 0xe7ad1480,
+    0x909a0cb1, 0xb7ff2930, 0x9f563768, 0xb83312e9, 0x7138070a,
+    0x565d228b, 0x7ef43cd3, 0x59911952, 0x2ea60163, 0x09c324e2,
+    0x216a3aba, 0x060f1f3b, 0xf27b61a7, 0xd51e4426, 0xfdb75a7e,
+    0xdad27fff, 0xade567ce, 0x8a80424f, 0xa2295c17, 0x854c7996,
+    0x4c476c75, 0x6b2249f4, 0x438b57ac, 0x64ee722d, 0x13d96a1c,
+    0x34bc4f9d, 0x1c1551c5, 0x3b707444, 0x6af5b94d, 0x4d909ccc,
+    0x65398294, 0x425ca715, 0x356bbf24, 0x120e9aa5, 0x3aa784fd,
+    0x1dc2a17c, 0xd4c9b49f, 0xf3ac911e, 0xdb058f46, 0xfc60aac7,
+    0x8b57b2f6, 0xac329777, 0x849b892f, 0xa3feacae, 0x578ad232,
+    0x70eff7b3, 0x5846e9eb, 0x7f23cc6a, 0x0814d45b, 0x2f71f1da,
+    0x07d8ef82, 0x20bdca03, 0xe9b6dfe0, 0xced3fa61, 0xe67ae439,
+    0xc11fc1b8, 0xb628d989, 0x914dfc08, 0xb9e4e250, 0x9e81c7d1,
+    0x100b6fb3, 0x376e4a32, 0x1fc7546a, 0x38a271eb, 0x4f9569da,
+    0x68f04c5b, 0x40595203, 0x673c7782, 0xae376261, 0x895247e0,
+    0xa1fb59b8, 0x869e7c39, 0xf1a96408, 0xd6cc4189, 0xfe655fd1,
+    0xd9007a50, 0x2d7404cc, 0x0a11214d, 0x22b83f15, 0x05dd1a94,
+    0x72ea02a5, 0x558f2724, 0x7d26397c, 0x5a431cfd, 0x9348091e,
+    0xb42d2c9f, 0x9c8432c7, 0xbbe11746, 0xccd60f77, 0xebb32af6,
+    0xc31a34ae, 0xe47f112f, 0xdf0f656b, 0xf86a40ea, 0xd0c35eb2,
+    0xf7a67b33, 0x80916302, 0xa7f44683, 0x8f5d58db, 0xa8387d5a,
+    0x613368b9, 0x46564d38, 0x6eff5360, 0x499a76e1, 0x3ead6ed0,
+    0x19c84b51, 0x31615509, 0x16047088, 0xe2700e14, 0xc5152b95,
+    0xedbc35cd, 0xcad9104c, 0xbdee087d, 0x9a8b2dfc, 0xb22233a4,
+    0x95471625, 0x5c4c03c6, 0x7b292647, 0x5380381f, 0x74e51d9e,
+    0x03d205af, 0x24b7202e, 0x0c1e3e76, 0x2b7b1bf7, 0xa5f1b395,
+    0x82949614, 0xaa3d884c, 0x8d58adcd, 0xfa6fb5fc, 0xdd0a907d,
+    0xf5a38e25, 0xd2c6aba4, 0x1bcdbe47, 0x3ca89bc6, 0x1401859e,
+    0x3364a01f, 0x4453b82e, 0x63369daf, 0x4b9f83f7, 0x6cfaa676,
+    0x988ed8ea, 0xbfebfd6b, 0x9742e333, 0xb027c6b2, 0xc710de83,
+    0xe075fb02, 0xc8dce55a, 0xefb9c0db, 0x26b2d538, 0x01d7f0b9,
+    0x297eeee1, 0x0e1bcb60, 0x792cd351, 0x5e49f6d0, 0x76e0e888,
+    0x5185cd09}};
+
+#endif
+
+#endif
+
+#endif
+
+local const z_crc_t FAR x2n_table[] = {
+    0x40000000, 0x20000000, 0x08000000, 0x00800000, 0x00008000,
+    0xedb88320, 0xb1e6b092, 0xa06a2517, 0xed627dae, 0x88d14467,
+    0xd7bbfe6a, 0xec447f11, 0x8e7ea170, 0x6427800e, 0x4d47bae0,
+    0x09fe548f, 0x83852d0f, 0x30362f1a, 0x7b5a9cc3, 0x31fec169,
+    0x9fec022a, 0x6c8dedc4, 0x15d6874d, 0x5fde7a4e, 0xbad90e37,
+    0x2e4e5eef, 0x4eaba214, 0xa8a472c0, 0x429a969e, 0x148d302a,
+    0xc40ba6d0, 0xc4e22c3c};
diff --git a/compat/zlib/deflate.c b/compat/zlib/deflate.c
new file mode 100644
index 0000000..012ea81
--- /dev/null
+++ b/compat/zlib/deflate.c
@@ -0,0 +1,2139 @@
+/* deflate.c -- compress data using the deflation algorithm
+ * Copyright (C) 1995-2024 Jean-loup Gailly and Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/*
+ *  ALGORITHM
+ *
+ *      The "deflation" process depends on being able to identify portions
+ *      of the input text which are identical to earlier input (within a
+ *      sliding window trailing behind the input currently being processed).
+ *
+ *      The most straightforward technique turns out to be the fastest for
+ *      most input files: try all possible matches and select the longest.
+ *      The key feature of this algorithm is that insertions into the string
+ *      dictionary are very simple and thus fast, and deletions are avoided
+ *      completely. Insertions are performed at each input character, whereas
+ *      string matches are performed only when the previous match ends. So it
+ *      is preferable to spend more time in matches to allow very fast string
+ *      insertions and avoid deletions. The matching algorithm for small
+ *      strings is inspired from that of Rabin & Karp. A brute force approach
+ *      is used to find longer strings when a small match has been found.
+ *      A similar algorithm is used in comic (by Jan-Mark Wams) and freeze
+ *      (by Leonid Broukhis).
+ *         A previous version of this file used a more sophisticated algorithm
+ *      (by Fiala and Greene) which is guaranteed to run in linear amortized
+ *      time, but has a larger average cost, uses more memory and is patented.
+ *      However the F&G algorithm may be faster for some highly redundant
+ *      files if the parameter max_chain_length (described below) is too large.
+ *
+ *  ACKNOWLEDGEMENTS
+ *
+ *      The idea of lazy evaluation of matches is due to Jan-Mark Wams, and
+ *      I found it in 'freeze' written by Leonid Broukhis.
+ *      Thanks to many people for bug reports and testing.
+ *
+ *  REFERENCES
+ *
+ *      Deutsch, L.P.,"DEFLATE Compressed Data Format Specification".
+ *      Available in http://tools.ietf.org/html/rfc1951
+ *
+ *      A description of the Rabin and Karp algorithm is given in the book
+ *         "Algorithms" by R. Sedgewick, Addison-Wesley, p252.
+ *
+ *      Fiala,E.R., and Greene,D.H.
+ *         Data Compression with Finite Windows, Comm.ACM, 32,4 (1989) 490-595
+ *
+ */
+
+/* @(#) $Id$ */
+
+#include "deflate.h"
+
+const char deflate_copyright[] =
+   " deflate 1.3.1 Copyright 1995-2024 Jean-loup Gailly and Mark Adler ";
+/*
+  If you use the zlib library in a product, an acknowledgment is welcome
+  in the documentation of your product. If for some reason you cannot
+  include such an acknowledgment, I would appreciate that you keep this
+  copyright string in the executable of your product.
+ */
+
+typedef enum {
+    need_more,      /* block not completed, need more input or more output */
+    block_done,     /* block flush performed */
+    finish_started, /* finish started, need only more output at next deflate */
+    finish_done     /* finish done, accept no more input or output */
+} block_state;
+
+typedef block_state (*compress_func)(deflate_state *s, int flush);
+/* Compression function. Returns the block state after the call. */
+
+local block_state deflate_stored(deflate_state *s, int flush);
+local block_state deflate_fast(deflate_state *s, int flush);
+#ifndef FASTEST
+local block_state deflate_slow(deflate_state *s, int flush);
+#endif
+local block_state deflate_rle(deflate_state *s, int flush);
+local block_state deflate_huff(deflate_state *s, int flush);
+
+/* ===========================================================================
+ * Local data
+ */
+
+#define NIL 0
+/* Tail of hash chains */
+
+#ifndef TOO_FAR
+#  define TOO_FAR 4096
+#endif
+/* Matches of length 3 are discarded if their distance exceeds TOO_FAR */
+
+/* Values for max_lazy_match, good_match and max_chain_length, depending on
+ * the desired pack level (0..9). The values given below have been tuned to
+ * exclude worst case performance for pathological files. Better values may be
+ * found for specific files.
+ */
+typedef struct config_s {
+   ush good_length; /* reduce lazy search above this match length */
+   ush max_lazy;    /* do not perform lazy search above this match length */
+   ush nice_length; /* quit search above this match length */
+   ush max_chain;
+   compress_func func;
+} config;
+
+#ifdef FASTEST
+local const config configuration_table[2] = {
+/*      good lazy nice chain */
+/* 0 */ {0,    0,  0,    0, deflate_stored},  /* store only */
+/* 1 */ {4,    4,  8,    4, deflate_fast}}; /* max speed, no lazy matches */
+#else
+local const config configuration_table[10] = {
+/*      good lazy nice chain */
+/* 0 */ {0,    0,  0,    0, deflate_stored},  /* store only */
+/* 1 */ {4,    4,  8,    4, deflate_fast}, /* max speed, no lazy matches */
+/* 2 */ {4,    5, 16,    8, deflate_fast},
+/* 3 */ {4,    6, 32,   32, deflate_fast},
+
+/* 4 */ {4,    4, 16,   16, deflate_slow},  /* lazy matches */
+/* 5 */ {8,   16, 32,   32, deflate_slow},
+/* 6 */ {8,   16, 128, 128, deflate_slow},
+/* 7 */ {8,   32, 128, 256, deflate_slow},
+/* 8 */ {32, 128, 258, 1024, deflate_slow},
+/* 9 */ {32, 258, 258, 4096, deflate_slow}}; /* max compression */
+#endif
+
+/* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4
+ * For deflate_fast() (levels <= 3) good is ignored and lazy has a different
+ * meaning.
+ */
+
+/* rank Z_BLOCK between Z_NO_FLUSH and Z_PARTIAL_FLUSH */
+#define RANK(f) (((f) * 2) - ((f) > 4 ? 9 : 0))
+
+/* ===========================================================================
+ * Update a hash value with the given input byte
+ * IN  assertion: all calls to UPDATE_HASH are made with consecutive input
+ *    characters, so that a running hash key can be computed from the previous
+ *    key instead of complete recalculation each time.
+ */
+#define UPDATE_HASH(s,h,c) (h = (((h) << s->hash_shift) ^ (c)) & s->hash_mask)
+
+
+/* ===========================================================================
+ * Insert string str in the dictionary and set match_head to the previous head
+ * of the hash chain (the most recent string with same hash key). Return
+ * the previous length of the hash chain.
+ * If this file is compiled with -DFASTEST, the compression level is forced
+ * to 1, and no hash chains are maintained.
+ * IN  assertion: all calls to INSERT_STRING are made with consecutive input
+ *    characters and the first MIN_MATCH bytes of str are valid (except for
+ *    the last MIN_MATCH-1 bytes of the input file).
+ */
+#ifdef FASTEST
+#define INSERT_STRING(s, str, match_head) \
+   (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \
+    match_head = s->head[s->ins_h], \
+    s->head[s->ins_h] = (Pos)(str))
+#else
+#define INSERT_STRING(s, str, match_head) \
+   (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \
+    match_head = s->prev[(str) & s->w_mask] = s->head[s->ins_h], \
+    s->head[s->ins_h] = (Pos)(str))
+#endif
+
+/* ===========================================================================
+ * Initialize the hash table (avoiding 64K overflow for 16 bit systems).
+ * prev[] will be initialized on the fly.
+ */
+#define CLEAR_HASH(s) \
+    do { \
+        s->head[s->hash_size - 1] = NIL; \
+        zmemzero((Bytef *)s->head, \
+                 (unsigned)(s->hash_size - 1)*sizeof(*s->head)); \
+    } while (0)
+
+/* ===========================================================================
+ * Slide the hash table when sliding the window down (could be avoided with 32
+ * bit values at the expense of memory usage). We slide even when level == 0 to
+ * keep the hash table consistent if we switch back to level > 0 later.
+ */
+#if defined(__has_feature)
+#  if __has_feature(memory_sanitizer)
+     __attribute__((no_sanitize("memory")))
+#  endif
+#endif
+local void slide_hash(deflate_state *s) {
+    unsigned n, m;
+    Posf *p;
+    uInt wsize = s->w_size;
+
+    n = s->hash_size;
+    p = &s->head[n];
+    do {
+        m = *--p;
+        *p = (Pos)(m >= wsize ? m - wsize : NIL);
+    } while (--n);
+    n = wsize;
+#ifndef FASTEST
+    p = &s->prev[n];
+    do {
+        m = *--p;
+        *p = (Pos)(m >= wsize ? m - wsize : NIL);
+        /* If n is not on any hash chain, prev[n] is garbage but
+         * its value will never be used.
+         */
+    } while (--n);
+#endif
+}
+
+/* ===========================================================================
+ * Read a new buffer from the current input stream, update the adler32
+ * and total number of bytes read.  All deflate() input goes through
+ * this function so some applications may wish to modify it to avoid
+ * allocating a large strm->next_in buffer and copying from it.
+ * (See also flush_pending()).
+ */
+local unsigned read_buf(z_streamp strm, Bytef *buf, unsigned size) {
+    unsigned len = strm->avail_in;
+
+    if (len > size) len = size;
+    if (len == 0) return 0;
+
+    strm->avail_in  -= len;
+
+    zmemcpy(buf, strm->next_in, len);
+    if (strm->state->wrap == 1) {
+        strm->adler = adler32(strm->adler, buf, len);
+    }
+#ifdef GZIP
+    else if (strm->state->wrap == 2) {
+        strm->adler = crc32(strm->adler, buf, len);
+    }
+#endif
+    strm->next_in  += len;
+    strm->total_in += len;
+
+    return len;
+}
+
+/* ===========================================================================
+ * Fill the window when the lookahead becomes insufficient.
+ * Updates strstart and lookahead.
+ *
+ * IN assertion: lookahead < MIN_LOOKAHEAD
+ * OUT assertions: strstart <= window_size-MIN_LOOKAHEAD
+ *    At least one byte has been read, or avail_in == 0; reads are
+ *    performed for at least two bytes (required for the zip translate_eol
+ *    option -- not supported here).
+ */
+local void fill_window(deflate_state *s) {
+    unsigned n;
+    unsigned more;    /* Amount of free space at the end of the window. */
+    uInt wsize = s->w_size;
+
+    Assert(s->lookahead < MIN_LOOKAHEAD, "already enough lookahead");
+
+    do {
+        more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart);
+
+        /* Deal with !@#$% 64K limit: */
+        if (sizeof(int) <= 2) {
+            if (more == 0 && s->strstart == 0 && s->lookahead == 0) {
+                more = wsize;
+
+            } else if (more == (unsigned)(-1)) {
+                /* Very unlikely, but possible on 16 bit machine if
+                 * strstart == 0 && lookahead == 1 (input done a byte at time)
+                 */
+                more--;
+            }
+        }
+
+        /* If the window is almost full and there is insufficient lookahead,
+         * move the upper half to the lower one to make room in the upper half.
+         */
+        if (s->strstart >= wsize + MAX_DIST(s)) {
+
+            zmemcpy(s->window, s->window + wsize, (unsigned)wsize - more);
+            s->match_start -= wsize;
+            s->strstart    -= wsize; /* we now have strstart >= MAX_DIST */
+            s->block_start -= (long) wsize;
+            if (s->insert > s->strstart)
+                s->insert = s->strstart;
+            slide_hash(s);
+            more += wsize;
+        }
+        if (s->strm->avail_in == 0) break;
+
+        /* If there was no sliding:
+         *    strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 &&
+         *    more == window_size - lookahead - strstart
+         * => more >= window_size - (MIN_LOOKAHEAD-1 + WSIZE + MAX_DIST-1)
+         * => more >= window_size - 2*WSIZE + 2
+         * In the BIG_MEM or MMAP case (not yet supported),
+         *   window_size == input_size + MIN_LOOKAHEAD  &&
+         *   strstart + s->lookahead <= input_size => more >= MIN_LOOKAHEAD.
+         * Otherwise, window_size == 2*WSIZE so more >= 2.
+         * If there was sliding, more >= WSIZE. So in all cases, more >= 2.
+         */
+        Assert(more >= 2, "more < 2");
+
+        n = read_buf(s->strm, s->window + s->strstart + s->lookahead, more);
+        s->lookahead += n;
+
+        /* Initialize the hash value now that we have some input: */
+        if (s->lookahead + s->insert >= MIN_MATCH) {
+            uInt str = s->strstart - s->insert;
+            s->ins_h = s->window[str];
+            UPDATE_HASH(s, s->ins_h, s->window[str + 1]);
+#if MIN_MATCH != 3
+            Call UPDATE_HASH() MIN_MATCH-3 more times
+#endif
+            while (s->insert) {
+                UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]);
+#ifndef FASTEST
+                s->prev[str & s->w_mask] = s->head[s->ins_h];
+#endif
+                s->head[s->ins_h] = (Pos)str;
+                str++;
+                s->insert--;
+                if (s->lookahead + s->insert < MIN_MATCH)
+                    break;
+            }
+        }
+        /* If the whole input has less than MIN_MATCH bytes, ins_h is garbage,
+         * but this is not important since only literal bytes will be emitted.
+         */
+
+    } while (s->lookahead < MIN_LOOKAHEAD && s->strm->avail_in != 0);
+
+    /* If the WIN_INIT bytes after the end of the current data have never been
+     * written, then zero those bytes in order to avoid memory check reports of
+     * the use of uninitialized (or uninitialised as Julian writes) bytes by
+     * the longest match routines.  Update the high water mark for the next
+     * time through here.  WIN_INIT is set to MAX_MATCH since the longest match
+     * routines allow scanning to strstart + MAX_MATCH, ignoring lookahead.
+     */
+    if (s->high_water < s->window_size) {
+        ulg curr = s->strstart + (ulg)(s->lookahead);
+        ulg init;
+
+        if (s->high_water < curr) {
+            /* Previous high water mark below current data -- zero WIN_INIT
+             * bytes or up to end of window, whichever is less.
+             */
+            init = s->window_size - curr;
+            if (init > WIN_INIT)
+                init = WIN_INIT;
+            zmemzero(s->window + curr, (unsigned)init);
+            s->high_water = curr + init;
+        }
+        else if (s->high_water < (ulg)curr + WIN_INIT) {
+            /* High water mark at or above current data, but below current data
+             * plus WIN_INIT -- zero out to current data plus WIN_INIT, or up
+             * to end of window, whichever is less.
+             */
+            init = (ulg)curr + WIN_INIT - s->high_water;
+            if (init > s->window_size - s->high_water)
+                init = s->window_size - s->high_water;
+            zmemzero(s->window + s->high_water, (unsigned)init);
+            s->high_water += init;
+        }
+    }
+
+    Assert((ulg)s->strstart <= s->window_size - MIN_LOOKAHEAD,
+           "not enough room for search");
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateInit_(z_streamp strm, int level, const char *version,
+                         int stream_size) {
+    return deflateInit2_(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL,
+                         Z_DEFAULT_STRATEGY, version, stream_size);
+    /* To do: ignore strm->next_in if we use it as window */
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateInit2_(z_streamp strm, int level, int method,
+                          int windowBits, int memLevel, int strategy,
+                          const char *version, int stream_size) {
+    deflate_state *s;
+    int wrap = 1;
+    static const char my_version[] = ZLIB_VERSION;
+
+    if (version == Z_NULL || version[0] != my_version[0] ||
+        stream_size != sizeof(z_stream)) {
+        return Z_VERSION_ERROR;
+    }
+    if (strm == Z_NULL) return Z_STREAM_ERROR;
+
+    strm->msg = Z_NULL;
+    if (strm->zalloc == (alloc_func)0) {
+#ifdef Z_SOLO
+        return Z_STREAM_ERROR;
+#else
+        strm->zalloc = zcalloc;
+        strm->opaque = (voidpf)0;
+#endif
+    }
+    if (strm->zfree == (free_func)0)
+#ifdef Z_SOLO
+        return Z_STREAM_ERROR;
+#else
+        strm->zfree = zcfree;
+#endif
+
+#ifdef FASTEST
+    if (level != 0) level = 1;
+#else
+    if (level == Z_DEFAULT_COMPRESSION) level = 6;
+#endif
+
+    if (windowBits < 0) { /* suppress zlib wrapper */
+        wrap = 0;
+        if (windowBits < -15)
+            return Z_STREAM_ERROR;
+        windowBits = -windowBits;
+    }
+#ifdef GZIP
+    else if (windowBits > 15) {
+        wrap = 2;       /* write gzip wrapper instead */
+        windowBits -= 16;
+    }
+#endif
+    if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED ||
+        windowBits < 8 || windowBits > 15 || level < 0 || level > 9 ||
+        strategy < 0 || strategy > Z_FIXED || (windowBits == 8 && wrap != 1)) {
+        return Z_STREAM_ERROR;
+    }
+    if (windowBits == 8) windowBits = 9;  /* until 256-byte window bug fixed */
+    s = (deflate_state *) ZALLOC(strm, 1, sizeof(deflate_state));
+    if (s == Z_NULL) return Z_MEM_ERROR;
+    strm->state = (struct internal_state FAR *)s;
+    s->strm = strm;
+    s->status = INIT_STATE;     /* to pass state test in deflateReset() */
+
+    s->wrap = wrap;
+    s->gzhead = Z_NULL;
+    s->w_bits = (uInt)windowBits;
+    s->w_size = 1 << s->w_bits;
+    s->w_mask = s->w_size - 1;
+
+    s->hash_bits = (uInt)memLevel + 7;
+    s->hash_size = 1 << s->hash_bits;
+    s->hash_mask = s->hash_size - 1;
+    s->hash_shift =  ((s->hash_bits + MIN_MATCH-1) / MIN_MATCH);
+
+    s->window = (Bytef *) ZALLOC(strm, s->w_size, 2*sizeof(Byte));
+    s->prev   = (Posf *)  ZALLOC(strm, s->w_size, sizeof(Pos));
+    s->head   = (Posf *)  ZALLOC(strm, s->hash_size, sizeof(Pos));
+
+    s->high_water = 0;      /* nothing written to s->window yet */
+
+    s->lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */
+
+    /* We overlay pending_buf and sym_buf. This works since the average size
+     * for length/distance pairs over any compressed block is assured to be 31
+     * bits or less.
+     *
+     * Analysis: The longest fixed codes are a length code of 8 bits plus 5
+     * extra bits, for lengths 131 to 257. The longest fixed distance codes are
+     * 5 bits plus 13 extra bits, for distances 16385 to 32768. The longest
+     * possible fixed-codes length/distance pair is then 31 bits total.
+     *
+     * sym_buf starts one-fourth of the way into pending_buf. So there are
+     * three bytes in sym_buf for every four bytes in pending_buf. Each symbol
+     * in sym_buf is three bytes -- two for the distance and one for the
+     * literal/length. As each symbol is consumed, the pointer to the next
+     * sym_buf value to read moves forward three bytes. From that symbol, up to
+     * 31 bits are written to pending_buf. The closest the written pending_buf
+     * bits gets to the next sym_buf symbol to read is just before the last
+     * code is written. At that time, 31*(n - 2) bits have been written, just
+     * after 24*(n - 2) bits have been consumed from sym_buf. sym_buf starts at
+     * 8*n bits into pending_buf. (Note that the symbol buffer fills when n - 1
+     * symbols are written.) The closest the writing gets to what is unread is
+     * then n + 14 bits. Here n is lit_bufsize, which is 16384 by default, and
+     * can range from 128 to 32768.
+     *
+     * Therefore, at a minimum, there are 142 bits of space between what is
+     * written and what is read in the overlain buffers, so the symbols cannot
+     * be overwritten by the compressed data. That space is actually 139 bits,
+     * due to the three-bit fixed-code block header.
+     *
+     * That covers the case where either Z_FIXED is specified, forcing fixed
+     * codes, or when the use of fixed codes is chosen, because that choice
+     * results in a smaller compressed block than dynamic codes. That latter
+     * condition then assures that the above analysis also covers all dynamic
+     * blocks. A dynamic-code block will only be chosen to be emitted if it has
+     * fewer bits than a fixed-code block would for the same set of symbols.
+     * Therefore its average symbol length is assured to be less than 31. So
+     * the compressed data for a dynamic block also cannot overwrite the
+     * symbols from which it is being constructed.
+     */
+
+    s->pending_buf = (uchf *) ZALLOC(strm, s->lit_bufsize, LIT_BUFS);
+    s->pending_buf_size = (ulg)s->lit_bufsize * 4;
+
+    if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL ||
+        s->pending_buf == Z_NULL) {
+        s->status = FINISH_STATE;
+        strm->msg = ERR_MSG(Z_MEM_ERROR);
+        deflateEnd (strm);
+        return Z_MEM_ERROR;
+    }
+#ifdef LIT_MEM
+    s->d_buf = (ushf *)(s->pending_buf + (s->lit_bufsize << 1));
+    s->l_buf = s->pending_buf + (s->lit_bufsize << 2);
+    s->sym_end = s->lit_bufsize - 1;
+#else
+    s->sym_buf = s->pending_buf + s->lit_bufsize;
+    s->sym_end = (s->lit_bufsize - 1) * 3;
+#endif
+    /* We avoid equality with lit_bufsize*3 because of wraparound at 64K
+     * on 16 bit machines and because stored blocks are restricted to
+     * 64K-1 bytes.
+     */
+
+    s->level = level;
+    s->strategy = strategy;
+    s->method = (Byte)method;
+
+    return deflateReset(strm);
+}
+
+/* =========================================================================
+ * Check for a valid deflate stream state. Return 0 if ok, 1 if not.
+ */
+local int deflateStateCheck(z_streamp strm) {
+    deflate_state *s;
+    if (strm == Z_NULL ||
+        strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0)
+        return 1;
+    s = strm->state;
+    if (s == Z_NULL || s->strm != strm || (s->status != INIT_STATE &&
+#ifdef GZIP
+                                           s->status != GZIP_STATE &&
+#endif
+                                           s->status != EXTRA_STATE &&
+                                           s->status != NAME_STATE &&
+                                           s->status != COMMENT_STATE &&
+                                           s->status != HCRC_STATE &&
+                                           s->status != BUSY_STATE &&
+                                           s->status != FINISH_STATE))
+        return 1;
+    return 0;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateSetDictionary(z_streamp strm, const Bytef *dictionary,
+                                 uInt  dictLength) {
+    deflate_state *s;
+    uInt str, n;
+    int wrap;
+    unsigned avail;
+    z_const unsigned char *next;
+
+    if (deflateStateCheck(strm) || dictionary == Z_NULL)
+        return Z_STREAM_ERROR;
+    s = strm->state;
+    wrap = s->wrap;
+    if (wrap == 2 || (wrap == 1 && s->status != INIT_STATE) || s->lookahead)
+        return Z_STREAM_ERROR;
+
+    /* when using zlib wrappers, compute Adler-32 for provided dictionary */
+    if (wrap == 1)
+        strm->adler = adler32(strm->adler, dictionary, dictLength);
+    s->wrap = 0;                    /* avoid computing Adler-32 in read_buf */
+
+    /* if dictionary would fill window, just replace the history */
+    if (dictLength >= s->w_size) {
+        if (wrap == 0) {            /* already empty otherwise */
+            CLEAR_HASH(s);
+            s->strstart = 0;
+            s->block_start = 0L;
+            s->insert = 0;
+        }
+        dictionary += dictLength - s->w_size;  /* use the tail */
+        dictLength = s->w_size;
+    }
+
+    /* insert dictionary into window and hash */
+    avail = strm->avail_in;
+    next = strm->next_in;
+    strm->avail_in = dictLength;
+    strm->next_in = (z_const Bytef *)dictionary;
+    fill_window(s);
+    while (s->lookahead >= MIN_MATCH) {
+        str = s->strstart;
+        n = s->lookahead - (MIN_MATCH-1);
+        do {
+            UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]);
+#ifndef FASTEST
+            s->prev[str & s->w_mask] = s->head[s->ins_h];
+#endif
+            s->head[s->ins_h] = (Pos)str;
+            str++;
+        } while (--n);
+        s->strstart = str;
+        s->lookahead = MIN_MATCH-1;
+        fill_window(s);
+    }
+    s->strstart += s->lookahead;
+    s->block_start = (long)s->strstart;
+    s->insert = s->lookahead;
+    s->lookahead = 0;
+    s->match_length = s->prev_length = MIN_MATCH-1;
+    s->match_available = 0;
+    strm->next_in = next;
+    strm->avail_in = avail;
+    s->wrap = wrap;
+    return Z_OK;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateGetDictionary(z_streamp strm, Bytef *dictionary,
+                                 uInt *dictLength) {
+    deflate_state *s;
+    uInt len;
+
+    if (deflateStateCheck(strm))
+        return Z_STREAM_ERROR;
+    s = strm->state;
+    len = s->strstart + s->lookahead;
+    if (len > s->w_size)
+        len = s->w_size;
+    if (dictionary != Z_NULL && len)
+        zmemcpy(dictionary, s->window + s->strstart + s->lookahead - len, len);
+    if (dictLength != Z_NULL)
+        *dictLength = len;
+    return Z_OK;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateResetKeep(z_streamp strm) {
+    deflate_state *s;
+
+    if (deflateStateCheck(strm)) {
+        return Z_STREAM_ERROR;
+    }
+
+    strm->total_in = strm->total_out = 0;
+    strm->msg = Z_NULL; /* use zfree if we ever allocate msg dynamically */
+    strm->data_type = Z_UNKNOWN;
+
+    s = (deflate_state *)strm->state;
+    s->pending = 0;
+    s->pending_out = s->pending_buf;
+
+    if (s->wrap < 0) {
+        s->wrap = -s->wrap; /* was made negative by deflate(..., Z_FINISH); */
+    }
+    s->status =
+#ifdef GZIP
+        s->wrap == 2 ? GZIP_STATE :
+#endif
+        INIT_STATE;
+    strm->adler =
+#ifdef GZIP
+        s->wrap == 2 ? crc32(0L, Z_NULL, 0) :
+#endif
+        adler32(0L, Z_NULL, 0);
+    s->last_flush = -2;
+
+    _tr_init(s);
+
+    return Z_OK;
+}
+
+/* ===========================================================================
+ * Initialize the "longest match" routines for a new zlib stream
+ */
+local void lm_init(deflate_state *s) {
+    s->window_size = (ulg)2L*s->w_size;
+
+    CLEAR_HASH(s);
+
+    /* Set the default configuration parameters:
+     */
+    s->max_lazy_match   = configuration_table[s->level].max_lazy;
+    s->good_match       = configuration_table[s->level].good_length;
+    s->nice_match       = configuration_table[s->level].nice_length;
+    s->max_chain_length = configuration_table[s->level].max_chain;
+
+    s->strstart = 0;
+    s->block_start = 0L;
+    s->lookahead = 0;
+    s->insert = 0;
+    s->match_length = s->prev_length = MIN_MATCH-1;
+    s->match_available = 0;
+    s->ins_h = 0;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateReset(z_streamp strm) {
+    int ret;
+
+    ret = deflateResetKeep(strm);
+    if (ret == Z_OK)
+        lm_init(strm->state);
+    return ret;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateSetHeader(z_streamp strm, gz_headerp head) {
+    if (deflateStateCheck(strm) || strm->state->wrap != 2)
+        return Z_STREAM_ERROR;
+    strm->state->gzhead = head;
+    return Z_OK;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflatePending(z_streamp strm, unsigned *pending, int *bits) {
+    if (deflateStateCheck(strm)) return Z_STREAM_ERROR;
+    if (pending != Z_NULL)
+        *pending = strm->state->pending;
+    if (bits != Z_NULL)
+        *bits = strm->state->bi_valid;
+    return Z_OK;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflatePrime(z_streamp strm, int bits, int value) {
+    deflate_state *s;
+    int put;
+
+    if (deflateStateCheck(strm)) return Z_STREAM_ERROR;
+    s = strm->state;
+#ifdef LIT_MEM
+    if (bits < 0 || bits > 16 ||
+        (uchf *)s->d_buf < s->pending_out + ((Buf_size + 7) >> 3))
+        return Z_BUF_ERROR;
+#else
+    if (bits < 0 || bits > 16 ||
+        s->sym_buf < s->pending_out + ((Buf_size + 7) >> 3))
+        return Z_BUF_ERROR;
+#endif
+    do {
+        put = Buf_size - s->bi_valid;
+        if (put > bits)
+            put = bits;
+        s->bi_buf |= (ush)((value & ((1 << put) - 1)) << s->bi_valid);
+        s->bi_valid += put;
+        _tr_flush_bits(s);
+        value >>= put;
+        bits -= put;
+    } while (bits);
+    return Z_OK;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateParams(z_streamp strm, int level, int strategy) {
+    deflate_state *s;
+    compress_func func;
+
+    if (deflateStateCheck(strm)) return Z_STREAM_ERROR;
+    s = strm->state;
+
+#ifdef FASTEST
+    if (level != 0) level = 1;
+#else
+    if (level == Z_DEFAULT_COMPRESSION) level = 6;
+#endif
+    if (level < 0 || level > 9 || strategy < 0 || strategy > Z_FIXED) {
+        return Z_STREAM_ERROR;
+    }
+    func = configuration_table[s->level].func;
+
+    if ((strategy != s->strategy || func != configuration_table[level].func) &&
+        s->last_flush != -2) {
+        /* Flush the last buffer: */
+        int err = deflate(strm, Z_BLOCK);
+        if (err == Z_STREAM_ERROR)
+            return err;
+        if (strm->avail_in || (s->strstart - s->block_start) + s->lookahead)
+            return Z_BUF_ERROR;
+    }
+    if (s->level != level) {
+        if (s->level == 0 && s->matches != 0) {
+            if (s->matches == 1)
+                slide_hash(s);
+            else
+                CLEAR_HASH(s);
+            s->matches = 0;
+        }
+        s->level = level;
+        s->max_lazy_match   = configuration_table[level].max_lazy;
+        s->good_match       = configuration_table[level].good_length;
+        s->nice_match       = configuration_table[level].nice_length;
+        s->max_chain_length = configuration_table[level].max_chain;
+    }
+    s->strategy = strategy;
+    return Z_OK;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateTune(z_streamp strm, int good_length, int max_lazy,
+                        int nice_length, int max_chain) {
+    deflate_state *s;
+
+    if (deflateStateCheck(strm)) return Z_STREAM_ERROR;
+    s = strm->state;
+    s->good_match = (uInt)good_length;
+    s->max_lazy_match = (uInt)max_lazy;
+    s->nice_match = nice_length;
+    s->max_chain_length = (uInt)max_chain;
+    return Z_OK;
+}
+
+/* =========================================================================
+ * For the default windowBits of 15 and memLevel of 8, this function returns a
+ * close to exact, as well as small, upper bound on the compressed size. This
+ * is an expansion of ~0.03%, plus a small constant.
+ *
+ * For any setting other than those defaults for windowBits and memLevel, one
+ * of two worst case bounds is returned. This is at most an expansion of ~4% or
+ * ~13%, plus a small constant.
+ *
+ * Both the 0.03% and 4% derive from the overhead of stored blocks. The first
+ * one is for stored blocks of 16383 bytes (memLevel == 8), whereas the second
+ * is for stored blocks of 127 bytes (the worst case memLevel == 1). The
+ * expansion results from five bytes of header for each stored block.
+ *
+ * The larger expansion of 13% results from a window size less than or equal to
+ * the symbols buffer size (windowBits <= memLevel + 7). In that case some of
+ * the data being compressed may have slid out of the sliding window, impeding
+ * a stored block from being emitted. Then the only choice is a fixed or
+ * dynamic block, where a fixed block limits the maximum expansion to 9 bits
+ * per 8-bit byte, plus 10 bits for every block. The smallest block size for
+ * which this can occur is 255 (memLevel == 2).
+ *
+ * Shifts are used to approximate divisions, for speed.
+ */
+uLong ZEXPORT deflateBound(z_streamp strm, uLong sourceLen) {
+    deflate_state *s;
+    uLong fixedlen, storelen, wraplen;
+
+    /* upper bound for fixed blocks with 9-bit literals and length 255
+       (memLevel == 2, which is the lowest that may not use stored blocks) --
+       ~13% overhead plus a small constant */
+    fixedlen = sourceLen + (sourceLen >> 3) + (sourceLen >> 8) +
+               (sourceLen >> 9) + 4;
+
+    /* upper bound for stored blocks with length 127 (memLevel == 1) --
+       ~4% overhead plus a small constant */
+    storelen = sourceLen + (sourceLen >> 5) + (sourceLen >> 7) +
+               (sourceLen >> 11) + 7;
+
+    /* if can't get parameters, return larger bound plus a zlib wrapper */
+    if (deflateStateCheck(strm))
+        return (fixedlen > storelen ? fixedlen : storelen) + 6;
+
+    /* compute wrapper length */
+    s = strm->state;
+    switch (s->wrap) {
+    case 0:                                 /* raw deflate */
+        wraplen = 0;
+        break;
+    case 1:                                 /* zlib wrapper */
+        wraplen = 6 + (s->strstart ? 4 : 0);
+        break;
+#ifdef GZIP
+    case 2:                                 /* gzip wrapper */
+        wraplen = 18;
+        if (s->gzhead != Z_NULL) {          /* user-supplied gzip header */
+            Bytef *str;
+            if (s->gzhead->extra != Z_NULL)
+                wraplen += 2 + s->gzhead->extra_len;
+            str = s->gzhead->name;
+            if (str != Z_NULL)
+                do {
+                    wraplen++;
+                } while (*str++);
+            str = s->gzhead->comment;
+            if (str != Z_NULL)
+                do {
+                    wraplen++;
+                } while (*str++);
+            if (s->gzhead->hcrc)
+                wraplen += 2;
+        }
+        break;
+#endif
+    default:                                /* for compiler happiness */
+        wraplen = 6;
+    }
+
+    /* if not default parameters, return one of the conservative bounds */
+    if (s->w_bits != 15 || s->hash_bits != 8 + 7)
+        return (s->w_bits <= s->hash_bits && s->level ? fixedlen : storelen) +
+               wraplen;
+
+    /* default settings: return tight bound for that case -- ~0.03% overhead
+       plus a small constant */
+    return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) +
+           (sourceLen >> 25) + 13 - 6 + wraplen;
+}
+
+/* =========================================================================
+ * Put a short in the pending buffer. The 16-bit value is put in MSB order.
+ * IN assertion: the stream state is correct and there is enough room in
+ * pending_buf.
+ */
+local void putShortMSB(deflate_state *s, uInt b) {
+    put_byte(s, (Byte)(b >> 8));
+    put_byte(s, (Byte)(b & 0xff));
+}
+
+/* =========================================================================
+ * Flush as much pending output as possible. All deflate() output, except for
+ * some deflate_stored() output, goes through this function so some
+ * applications may wish to modify it to avoid allocating a large
+ * strm->next_out buffer and copying into it. (See also read_buf()).
+ */
+local void flush_pending(z_streamp strm) {
+    unsigned len;
+    deflate_state *s = strm->state;
+
+    _tr_flush_bits(s);
+    len = s->pending;
+    if (len > strm->avail_out) len = strm->avail_out;
+    if (len == 0) return;
+
+    zmemcpy(strm->next_out, s->pending_out, len);
+    strm->next_out  += len;
+    s->pending_out  += len;
+    strm->total_out += len;
+    strm->avail_out -= len;
+    s->pending      -= len;
+    if (s->pending == 0) {
+        s->pending_out = s->pending_buf;
+    }
+}
+
+/* ===========================================================================
+ * Update the header CRC with the bytes s->pending_buf[beg..s->pending - 1].
+ */
+#define HCRC_UPDATE(beg) \
+    do { \
+        if (s->gzhead->hcrc && s->pending > (beg)) \
+            strm->adler = crc32(strm->adler, s->pending_buf + (beg), \
+                                s->pending - (beg)); \
+    } while (0)
+
+/* ========================================================================= */
+int ZEXPORT deflate(z_streamp strm, int flush) {
+    int old_flush; /* value of flush param for previous deflate call */
+    deflate_state *s;
+
+    if (deflateStateCheck(strm) || flush > Z_BLOCK || flush < 0) {
+        return Z_STREAM_ERROR;
+    }
+    s = strm->state;
+
+    if (strm->next_out == Z_NULL ||
+        (strm->avail_in != 0 && strm->next_in == Z_NULL) ||
+        (s->status == FINISH_STATE && flush != Z_FINISH)) {
+        ERR_RETURN(strm, Z_STREAM_ERROR);
+    }
+    if (strm->avail_out == 0) ERR_RETURN(strm, Z_BUF_ERROR);
+
+    old_flush = s->last_flush;
+    s->last_flush = flush;
+
+    /* Flush as much pending output as possible */
+    if (s->pending != 0) {
+        flush_pending(strm);
+        if (strm->avail_out == 0) {
+            /* Since avail_out is 0, deflate will be called again with
+             * more output space, but possibly with both pending and
+             * avail_in equal to zero. There won't be anything to do,
+             * but this is not an error situation so make sure we
+             * return OK instead of BUF_ERROR at next call of deflate:
+             */
+            s->last_flush = -1;
+            return Z_OK;
+        }
+
+    /* Make sure there is something to do and avoid duplicate consecutive
+     * flushes. For repeated and useless calls with Z_FINISH, we keep
+     * returning Z_STREAM_END instead of Z_BUF_ERROR.
+     */
+    } else if (strm->avail_in == 0 && RANK(flush) <= RANK(old_flush) &&
+               flush != Z_FINISH) {
+        ERR_RETURN(strm, Z_BUF_ERROR);
+    }
+
+    /* User must not provide more input after the first FINISH: */
+    if (s->status == FINISH_STATE && strm->avail_in != 0) {
+        ERR_RETURN(strm, Z_BUF_ERROR);
+    }
+
+    /* Write the header */
+    if (s->status == INIT_STATE && s->wrap == 0)
+        s->status = BUSY_STATE;
+    if (s->status == INIT_STATE) {
+        /* zlib header */
+        uInt header = (Z_DEFLATED + ((s->w_bits - 8) << 4)) << 8;
+        uInt level_flags;
+
+        if (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2)
+            level_flags = 0;
+        else if (s->level < 6)
+            level_flags = 1;
+        else if (s->level == 6)
+            level_flags = 2;
+        else
+            level_flags = 3;
+        header |= (level_flags << 6);
+        if (s->strstart != 0) header |= PRESET_DICT;
+        header += 31 - (header % 31);
+
+        putShortMSB(s, header);
+
+        /* Save the adler32 of the preset dictionary: */
+        if (s->strstart != 0) {
+            putShortMSB(s, (uInt)(strm->adler >> 16));
+            putShortMSB(s, (uInt)(strm->adler & 0xffff));
+        }
+        strm->adler = adler32(0L, Z_NULL, 0);
+        s->status = BUSY_STATE;
+
+        /* Compression must start with an empty pending buffer */
+        flush_pending(strm);
+        if (s->pending != 0) {
+            s->last_flush = -1;
+            return Z_OK;
+        }
+    }
+#ifdef GZIP
+    if (s->status == GZIP_STATE) {
+        /* gzip header */
+        strm->adler = crc32(0L, Z_NULL, 0);
+        put_byte(s, 31);
+        put_byte(s, 139);
+        put_byte(s, 8);
+        if (s->gzhead == Z_NULL) {
+            put_byte(s, 0);
+            put_byte(s, 0);
+            put_byte(s, 0);
+            put_byte(s, 0);
+            put_byte(s, 0);
+            put_byte(s, s->level == 9 ? 2 :
+                     (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ?
+                      4 : 0));
+            put_byte(s, OS_CODE);
+            s->status = BUSY_STATE;
+
+            /* Compression must start with an empty pending buffer */
+            flush_pending(strm);
+            if (s->pending != 0) {
+                s->last_flush = -1;
+                return Z_OK;
+            }
+        }
+        else {
+            put_byte(s, (s->gzhead->text ? 1 : 0) +
+                     (s->gzhead->hcrc ? 2 : 0) +
+                     (s->gzhead->extra == Z_NULL ? 0 : 4) +
+                     (s->gzhead->name == Z_NULL ? 0 : 8) +
+                     (s->gzhead->comment == Z_NULL ? 0 : 16)
+                     );
+            put_byte(s, (Byte)(s->gzhead->time & 0xff));
+            put_byte(s, (Byte)((s->gzhead->time >> 8) & 0xff));
+            put_byte(s, (Byte)((s->gzhead->time >> 16) & 0xff));
+            put_byte(s, (Byte)((s->gzhead->time >> 24) & 0xff));
+            put_byte(s, s->level == 9 ? 2 :
+                     (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ?
+                      4 : 0));
+            put_byte(s, s->gzhead->os & 0xff);
+            if (s->gzhead->extra != Z_NULL) {
+                put_byte(s, s->gzhead->extra_len & 0xff);
+                put_byte(s, (s->gzhead->extra_len >> 8) & 0xff);
+            }
+            if (s->gzhead->hcrc)
+                strm->adler = crc32(strm->adler, s->pending_buf,
+                                    s->pending);
+            s->gzindex = 0;
+            s->status = EXTRA_STATE;
+        }
+    }
+    if (s->status == EXTRA_STATE) {
+        if (s->gzhead->extra != Z_NULL) {
+            ulg beg = s->pending;   /* start of bytes to update crc */
+            uInt left = (s->gzhead->extra_len & 0xffff) - s->gzindex;
+            while (s->pending + left > s->pending_buf_size) {
+                uInt copy = s->pending_buf_size - s->pending;
+                zmemcpy(s->pending_buf + s->pending,
+                        s->gzhead->extra + s->gzindex, copy);
+                s->pending = s->pending_buf_size;
+                HCRC_UPDATE(beg);
+                s->gzindex += copy;
+                flush_pending(strm);
+                if (s->pending != 0) {
+                    s->last_flush = -1;
+                    return Z_OK;
+                }
+                beg = 0;
+                left -= copy;
+            }
+            zmemcpy(s->pending_buf + s->pending,
+                    s->gzhead->extra + s->gzindex, left);
+            s->pending += left;
+            HCRC_UPDATE(beg);
+            s->gzindex = 0;
+        }
+        s->status = NAME_STATE;
+    }
+    if (s->status == NAME_STATE) {
+        if (s->gzhead->name != Z_NULL) {
+            ulg beg = s->pending;   /* start of bytes to update crc */
+            int val;
+            do {
+                if (s->pending == s->pending_buf_size) {
+                    HCRC_UPDATE(beg);
+                    flush_pending(strm);
+                    if (s->pending != 0) {
+                        s->last_flush = -1;
+                        return Z_OK;
+                    }
+                    beg = 0;
+                }
+                val = s->gzhead->name[s->gzindex++];
+                put_byte(s, val);
+            } while (val != 0);
+            HCRC_UPDATE(beg);
+            s->gzindex = 0;
+        }
+        s->status = COMMENT_STATE;
+    }
+    if (s->status == COMMENT_STATE) {
+        if (s->gzhead->comment != Z_NULL) {
+            ulg beg = s->pending;   /* start of bytes to update crc */
+            int val;
+            do {
+                if (s->pending == s->pending_buf_size) {
+                    HCRC_UPDATE(beg);
+                    flush_pending(strm);
+                    if (s->pending != 0) {
+                        s->last_flush = -1;
+                        return Z_OK;
+                    }
+                    beg = 0;
+                }
+                val = s->gzhead->comment[s->gzindex++];
+                put_byte(s, val);
+            } while (val != 0);
+            HCRC_UPDATE(beg);
+        }
+        s->status = HCRC_STATE;
+    }
+    if (s->status == HCRC_STATE) {
+        if (s->gzhead->hcrc) {
+            if (s->pending + 2 > s->pending_buf_size) {
+                flush_pending(strm);
+                if (s->pending != 0) {
+                    s->last_flush = -1;
+                    return Z_OK;
+                }
+            }
+            put_byte(s, (Byte)(strm->adler & 0xff));
+            put_byte(s, (Byte)((strm->adler >> 8) & 0xff));
+            strm->adler = crc32(0L, Z_NULL, 0);
+        }
+        s->status = BUSY_STATE;
+
+        /* Compression must start with an empty pending buffer */
+        flush_pending(strm);
+        if (s->pending != 0) {
+            s->last_flush = -1;
+            return Z_OK;
+        }
+    }
+#endif
+
+    /* Start a new block or continue the current one.
+     */
+    if (strm->avail_in != 0 || s->lookahead != 0 ||
+        (flush != Z_NO_FLUSH && s->status != FINISH_STATE)) {
+        block_state bstate;
+
+        bstate = s->level == 0 ? deflate_stored(s, flush) :
+                 s->strategy == Z_HUFFMAN_ONLY ? deflate_huff(s, flush) :
+                 s->strategy == Z_RLE ? deflate_rle(s, flush) :
+                 (*(configuration_table[s->level].func))(s, flush);
+
+        if (bstate == finish_started || bstate == finish_done) {
+            s->status = FINISH_STATE;
+        }
+        if (bstate == need_more || bstate == finish_started) {
+            if (strm->avail_out == 0) {
+                s->last_flush = -1; /* avoid BUF_ERROR next call, see above */
+            }
+            return Z_OK;
+            /* If flush != Z_NO_FLUSH && avail_out == 0, the next call
+             * of deflate should use the same flush parameter to make sure
+             * that the flush is complete. So we don't have to output an
+             * empty block here, this will be done at next call. This also
+             * ensures that for a very small output buffer, we emit at most
+             * one empty block.
+             */
+        }
+        if (bstate == block_done) {
+            if (flush == Z_PARTIAL_FLUSH) {
+                _tr_align(s);
+            } else if (flush != Z_BLOCK) { /* FULL_FLUSH or SYNC_FLUSH */
+                _tr_stored_block(s, (char*)0, 0L, 0);
+                /* For a full flush, this empty block will be recognized
+                 * as a special marker by inflate_sync().
+                 */
+                if (flush == Z_FULL_FLUSH) {
+                    CLEAR_HASH(s);             /* forget history */
+                    if (s->lookahead == 0) {
+                        s->strstart = 0;
+                        s->block_start = 0L;
+                        s->insert = 0;
+                    }
+                }
+            }
+            flush_pending(strm);
+            if (strm->avail_out == 0) {
+              s->last_flush = -1; /* avoid BUF_ERROR at next call, see above */
+              return Z_OK;
+            }
+        }
+    }
+
+    if (flush != Z_FINISH) return Z_OK;
+    if (s->wrap <= 0) return Z_STREAM_END;
+
+    /* Write the trailer */
+#ifdef GZIP
+    if (s->wrap == 2) {
+        put_byte(s, (Byte)(strm->adler & 0xff));
+        put_byte(s, (Byte)((strm->adler >> 8) & 0xff));
+        put_byte(s, (Byte)((strm->adler >> 16) & 0xff));
+        put_byte(s, (Byte)((strm->adler >> 24) & 0xff));
+        put_byte(s, (Byte)(strm->total_in & 0xff));
+        put_byte(s, (Byte)((strm->total_in >> 8) & 0xff));
+        put_byte(s, (Byte)((strm->total_in >> 16) & 0xff));
+        put_byte(s, (Byte)((strm->total_in >> 24) & 0xff));
+    }
+    else
+#endif
+    {
+        putShortMSB(s, (uInt)(strm->adler >> 16));
+        putShortMSB(s, (uInt)(strm->adler & 0xffff));
+    }
+    flush_pending(strm);
+    /* If avail_out is zero, the application will call deflate again
+     * to flush the rest.
+     */
+    if (s->wrap > 0) s->wrap = -s->wrap; /* write the trailer only once! */
+    return s->pending != 0 ? Z_OK : Z_STREAM_END;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateEnd(z_streamp strm) {
+    int status;
+
+    if (deflateStateCheck(strm)) return Z_STREAM_ERROR;
+
+    status = strm->state->status;
+
+    /* Deallocate in reverse order of allocations: */
+    TRY_FREE(strm, strm->state->pending_buf);
+    TRY_FREE(strm, strm->state->head);
+    TRY_FREE(strm, strm->state->prev);
+    TRY_FREE(strm, strm->state->window);
+
+    ZFREE(strm, strm->state);
+    strm->state = Z_NULL;
+
+    return status == BUSY_STATE ? Z_DATA_ERROR : Z_OK;
+}
+
+/* =========================================================================
+ * Copy the source state to the destination state.
+ * To simplify the source, this is not supported for 16-bit MSDOS (which
+ * doesn't have enough memory anyway to duplicate compression states).
+ */
+int ZEXPORT deflateCopy(z_streamp dest, z_streamp source) {
+#ifdef MAXSEG_64K
+    (void)dest;
+    (void)source;
+    return Z_STREAM_ERROR;
+#else
+    deflate_state *ds;
+    deflate_state *ss;
+
+
+    if (deflateStateCheck(source) || dest == Z_NULL) {
+        return Z_STREAM_ERROR;
+    }
+
+    ss = source->state;
+
+    zmemcpy((voidpf)dest, (voidpf)source, sizeof(z_stream));
+
+    ds = (deflate_state *) ZALLOC(dest, 1, sizeof(deflate_state));
+    if (ds == Z_NULL) return Z_MEM_ERROR;
+    dest->state = (struct internal_state FAR *) ds;
+    zmemcpy((voidpf)ds, (voidpf)ss, sizeof(deflate_state));
+    ds->strm = dest;
+
+    ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte));
+    ds->prev   = (Posf *)  ZALLOC(dest, ds->w_size, sizeof(Pos));
+    ds->head   = (Posf *)  ZALLOC(dest, ds->hash_size, sizeof(Pos));
+    ds->pending_buf = (uchf *) ZALLOC(dest, ds->lit_bufsize, LIT_BUFS);
+
+    if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL ||
+        ds->pending_buf == Z_NULL) {
+        deflateEnd (dest);
+        return Z_MEM_ERROR;
+    }
+    /* following zmemcpy do not work for 16-bit MSDOS */
+    zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte));
+    zmemcpy((voidpf)ds->prev, (voidpf)ss->prev, ds->w_size * sizeof(Pos));
+    zmemcpy((voidpf)ds->head, (voidpf)ss->head, ds->hash_size * sizeof(Pos));
+    zmemcpy(ds->pending_buf, ss->pending_buf, ds->lit_bufsize * LIT_BUFS);
+
+    ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf);
+#ifdef LIT_MEM
+    ds->d_buf = (ushf *)(ds->pending_buf + (ds->lit_bufsize << 1));
+    ds->l_buf = ds->pending_buf + (ds->lit_bufsize << 2);
+#else
+    ds->sym_buf = ds->pending_buf + ds->lit_bufsize;
+#endif
+
+    ds->l_desc.dyn_tree = ds->dyn_ltree;
+    ds->d_desc.dyn_tree = ds->dyn_dtree;
+    ds->bl_desc.dyn_tree = ds->bl_tree;
+
+    return Z_OK;
+#endif /* MAXSEG_64K */
+}
+
+#ifndef FASTEST
+/* ===========================================================================
+ * Set match_start to the longest match starting at the given string and
+ * return its length. Matches shorter or equal to prev_length are discarded,
+ * in which case the result is equal to prev_length and match_start is
+ * garbage.
+ * IN assertions: cur_match is the head of the hash chain for the current
+ *   string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
+ * OUT assertion: the match length is not greater than s->lookahead.
+ */
+local uInt longest_match(deflate_state *s, IPos cur_match) {
+    unsigned chain_length = s->max_chain_length;/* max hash chain length */
+    register Bytef *scan = s->window + s->strstart; /* current string */
+    register Bytef *match;                      /* matched string */
+    register int len;                           /* length of current match */
+    int best_len = (int)s->prev_length;         /* best match length so far */
+    int nice_match = s->nice_match;             /* stop if match long enough */
+    IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
+        s->strstart - (IPos)MAX_DIST(s) : NIL;
+    /* Stop when cur_match becomes <= limit. To simplify the code,
+     * we prevent matches with the string of window index 0.
+     */
+    Posf *prev = s->prev;
+    uInt wmask = s->w_mask;
+
+#ifdef UNALIGNED_OK
+    /* Compare two bytes at a time. Note: this is not always beneficial.
+     * Try with and without -DUNALIGNED_OK to check.
+     */
+    register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1;
+    register ush scan_start = *(ushf*)scan;
+    register ush scan_end   = *(ushf*)(scan + best_len - 1);
+#else
+    register Bytef *strend = s->window + s->strstart + MAX_MATCH;
+    register Byte scan_end1  = scan[best_len - 1];
+    register Byte scan_end   = scan[best_len];
+#endif
+
+    /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
+     * It is easy to get rid of this optimization if necessary.
+     */
+    Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever");
+
+    /* Do not waste too much time if we already have a good match: */
+    if (s->prev_length >= s->good_match) {
+        chain_length >>= 2;
+    }
+    /* Do not look for matches beyond the end of the input. This is necessary
+     * to make deflate deterministic.
+     */
+    if ((uInt)nice_match > s->lookahead) nice_match = (int)s->lookahead;
+
+    Assert((ulg)s->strstart <= s->window_size - MIN_LOOKAHEAD,
+           "need lookahead");
+
+    do {
+        Assert(cur_match < s->strstart, "no future");
+        match = s->window + cur_match;
+
+        /* Skip to next match if the match length cannot increase
+         * or if the match length is less than 2.  Note that the checks below
+         * for insufficient lookahead only occur occasionally for performance
+         * reasons.  Therefore uninitialized memory will be accessed, and
+         * conditional jumps will be made that depend on those values.
+         * However the length of the match is limited to the lookahead, so
+         * the output of deflate is not affected by the uninitialized values.
+         */
+#if (defined(UNALIGNED_OK) && MAX_MATCH == 258)
+        /* This code assumes sizeof(unsigned short) == 2. Do not use
+         * UNALIGNED_OK if your compiler uses a different size.
+         */
+        if (*(ushf*)(match + best_len - 1) != scan_end ||
+            *(ushf*)match != scan_start) continue;
+
+        /* It is not necessary to compare scan[2] and match[2] since they are
+         * always equal when the other bytes match, given that the hash keys
+         * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at
+         * strstart + 3, + 5, up to strstart + 257. We check for insufficient
+         * lookahead only every 4th comparison; the 128th check will be made
+         * at strstart + 257. If MAX_MATCH-2 is not a multiple of 8, it is
+         * necessary to put more guard bytes at the end of the window, or
+         * to check more often for insufficient lookahead.
+         */
+        Assert(scan[2] == match[2], "scan[2]?");
+        scan++, match++;
+        do {
+        } while (*(ushf*)(scan += 2) == *(ushf*)(match += 2) &&
+                 *(ushf*)(scan += 2) == *(ushf*)(match += 2) &&
+                 *(ushf*)(scan += 2) == *(ushf*)(match += 2) &&
+                 *(ushf*)(scan += 2) == *(ushf*)(match += 2) &&
+                 scan < strend);
+        /* The funny "do {}" generates better code on most compilers */
+
+        /* Here, scan <= window + strstart + 257 */
+        Assert(scan <= s->window + (unsigned)(s->window_size - 1),
+               "wild scan");
+        if (*scan == *match) scan++;
+
+        len = (MAX_MATCH - 1) - (int)(strend - scan);
+        scan = strend - (MAX_MATCH-1);
+
+#else /* UNALIGNED_OK */
+
+        if (match[best_len]     != scan_end  ||
+            match[best_len - 1] != scan_end1 ||
+            *match              != *scan     ||
+            *++match            != scan[1])      continue;
+
+        /* The check at best_len - 1 can be removed because it will be made
+         * again later. (This heuristic is not always a win.)
+         * It is not necessary to compare scan[2] and match[2] since they
+         * are always equal when the other bytes match, given that
+         * the hash keys are equal and that HASH_BITS >= 8.
+         */
+        scan += 2, match++;
+        Assert(*scan == *match, "match[2]?");
+
+        /* We check for insufficient lookahead only every 8th comparison;
+         * the 256th check will be made at strstart + 258.
+         */
+        do {
+        } while (*++scan == *++match && *++scan == *++match &&
+                 *++scan == *++match && *++scan == *++match &&
+                 *++scan == *++match && *++scan == *++match &&
+                 *++scan == *++match && *++scan == *++match &&
+                 scan < strend);
+
+        Assert(scan <= s->window + (unsigned)(s->window_size - 1),
+               "wild scan");
+
+        len = MAX_MATCH - (int)(strend - scan);
+        scan = strend - MAX_MATCH;
+
+#endif /* UNALIGNED_OK */
+
+        if (len > best_len) {
+            s->match_start = cur_match;
+            best_len = len;
+            if (len >= nice_match) break;
+#ifdef UNALIGNED_OK
+            scan_end = *(ushf*)(scan + best_len - 1);
+#else
+            scan_end1  = scan[best_len - 1];
+            scan_end   = scan[best_len];
+#endif
+        }
+    } while ((cur_match = prev[cur_match & wmask]) > limit
+             && --chain_length != 0);
+
+    if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
+    return s->lookahead;
+}
+
+#else /* FASTEST */
+
+/* ---------------------------------------------------------------------------
+ * Optimized version for FASTEST only
+ */
+local uInt longest_match(deflate_state *s, IPos cur_match) {
+    register Bytef *scan = s->window + s->strstart; /* current string */
+    register Bytef *match;                       /* matched string */
+    register int len;                           /* length of current match */
+    register Bytef *strend = s->window + s->strstart + MAX_MATCH;
+
+    /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
+     * It is easy to get rid of this optimization if necessary.
+     */
+    Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever");
+
+    Assert((ulg)s->strstart <= s->window_size - MIN_LOOKAHEAD,
+           "need lookahead");
+
+    Assert(cur_match < s->strstart, "no future");
+
+    match = s->window + cur_match;
+
+    /* Return failure if the match length is less than 2:
+     */
+    if (match[0] != scan[0] || match[1] != scan[1]) return MIN_MATCH-1;
+
+    /* The check at best_len - 1 can be removed because it will be made
+     * again later. (This heuristic is not always a win.)
+     * It is not necessary to compare scan[2] and match[2] since they
+     * are always equal when the other bytes match, given that
+     * the hash keys are equal and that HASH_BITS >= 8.
+     */
+    scan += 2, match += 2;
+    Assert(*scan == *match, "match[2]?");
+
+    /* We check for insufficient lookahead only every 8th comparison;
+     * the 256th check will be made at strstart + 258.
+     */
+    do {
+    } while (*++scan == *++match && *++scan == *++match &&
+             *++scan == *++match && *++scan == *++match &&
+             *++scan == *++match && *++scan == *++match &&
+             *++scan == *++match && *++scan == *++match &&
+             scan < strend);
+
+    Assert(scan <= s->window + (unsigned)(s->window_size - 1), "wild scan");
+
+    len = MAX_MATCH - (int)(strend - scan);
+
+    if (len < MIN_MATCH) return MIN_MATCH - 1;
+
+    s->match_start = cur_match;
+    return (uInt)len <= s->lookahead ? (uInt)len : s->lookahead;
+}
+
+#endif /* FASTEST */
+
+#ifdef ZLIB_DEBUG
+
+#define EQUAL 0
+/* result of memcmp for equal strings */
+
+/* ===========================================================================
+ * Check that the match at match_start is indeed a match.
+ */
+local void check_match(deflate_state *s, IPos start, IPos match, int length) {
+    /* check that the match is indeed a match */
+    Bytef *back = s->window + (int)match, *here = s->window + start;
+    IPos len = length;
+    if (match == (IPos)-1) {
+        /* match starts one byte before the current window -- just compare the
+           subsequent length-1 bytes */
+        back++;
+        here++;
+        len--;
+    }
+    if (zmemcmp(back, here, len) != EQUAL) {
+        fprintf(stderr, " start %u, match %d, length %d\n",
+                start, (int)match, length);
+        do {
+            fprintf(stderr, "(%02x %02x)", *back++, *here++);
+        } while (--len != 0);
+        z_error("invalid match");
+    }
+    if (z_verbose > 1) {
+        fprintf(stderr,"\\[%d,%d]", start - match, length);
+        do { putc(s->window[start++], stderr); } while (--length != 0);
+    }
+}
+#else
+#  define check_match(s, start, match, length)
+#endif /* ZLIB_DEBUG */
+
+/* ===========================================================================
+ * Flush the current block, with given end-of-file flag.
+ * IN assertion: strstart is set to the end of the current match.
+ */
+#define FLUSH_BLOCK_ONLY(s, last) { \
+   _tr_flush_block(s, (s->block_start >= 0L ? \
+                   (charf *)&s->window[(unsigned)s->block_start] : \
+                   (charf *)Z_NULL), \
+                (ulg)((long)s->strstart - s->block_start), \
+                (last)); \
+   s->block_start = s->strstart; \
+   flush_pending(s->strm); \
+   Tracev((stderr,"[FLUSH]")); \
+}
+
+/* Same but force premature exit if necessary. */
+#define FLUSH_BLOCK(s, last) { \
+   FLUSH_BLOCK_ONLY(s, last); \
+   if (s->strm->avail_out == 0) return (last) ? finish_started : need_more; \
+}
+
+/* Maximum stored block length in deflate format (not including header). */
+#define MAX_STORED 65535
+
+/* Minimum of a and b. */
+#define MIN(a, b) ((a) > (b) ? (b) : (a))
+
+/* ===========================================================================
+ * Copy without compression as much as possible from the input stream, return
+ * the current block state.
+ *
+ * In case deflateParams() is used to later switch to a non-zero compression
+ * level, s->matches (otherwise unused when storing) keeps track of the number
+ * of hash table slides to perform. If s->matches is 1, then one hash table
+ * slide will be done when switching. If s->matches is 2, the maximum value
+ * allowed here, then the hash table will be cleared, since two or more slides
+ * is the same as a clear.
+ *
+ * deflate_stored() is written to minimize the number of times an input byte is
+ * copied. It is most efficient with large input and output buffers, which
+ * maximizes the opportunities to have a single copy from next_in to next_out.
+ */
+local block_state deflate_stored(deflate_state *s, int flush) {
+    /* Smallest worthy block size when not flushing or finishing. By default
+     * this is 32K. This can be as small as 507 bytes for memLevel == 1. For
+     * large input and output buffers, the stored block size will be larger.
+     */
+    unsigned min_block = MIN(s->pending_buf_size - 5, s->w_size);
+
+    /* Copy as many min_block or larger stored blocks directly to next_out as
+     * possible. If flushing, copy the remaining available input to next_out as
+     * stored blocks, if there is enough space.
+     */
+    unsigned len, left, have, last = 0;
+    unsigned used = s->strm->avail_in;
+    do {
+        /* Set len to the maximum size block that we can copy directly with the
+         * available input data and output space. Set left to how much of that
+         * would be copied from what's left in the window.
+         */
+        len = MAX_STORED;       /* maximum deflate stored block length */
+        have = (s->bi_valid + 42) >> 3;         /* number of header bytes */
+        if (s->strm->avail_out < have)          /* need room for header */
+            break;
+            /* maximum stored block length that will fit in avail_out: */
+        have = s->strm->avail_out - have;
+        left = s->strstart - s->block_start;    /* bytes left in window */
+        if (len > (ulg)left + s->strm->avail_in)
+            len = left + s->strm->avail_in;     /* limit len to the input */
+        if (len > have)
+            len = have;                         /* limit len to the output */
+
+        /* If the stored block would be less than min_block in length, or if
+         * unable to copy all of the available input when flushing, then try
+         * copying to the window and the pending buffer instead. Also don't
+         * write an empty block when flushing -- deflate() does that.
+         */
+        if (len < min_block && ((len == 0 && flush != Z_FINISH) ||
+                                flush == Z_NO_FLUSH ||
+                                len != left + s->strm->avail_in))
+            break;
+
+        /* Make a dummy stored block in pending to get the header bytes,
+         * including any pending bits. This also updates the debugging counts.
+         */
+        last = flush == Z_FINISH && len == left + s->strm->avail_in ? 1 : 0;
+        _tr_stored_block(s, (char *)0, 0L, last);
+
+        /* Replace the lengths in the dummy stored block with len. */
+        s->pending_buf[s->pending - 4] = len;
+        s->pending_buf[s->pending - 3] = len >> 8;
+        s->pending_buf[s->pending - 2] = ~len;
+        s->pending_buf[s->pending - 1] = ~len >> 8;
+
+        /* Write the stored block header bytes. */
+        flush_pending(s->strm);
+
+#ifdef ZLIB_DEBUG
+        /* Update debugging counts for the data about to be copied. */
+        s->compressed_len += len << 3;
+        s->bits_sent += len << 3;
+#endif
+
+        /* Copy uncompressed bytes from the window to next_out. */
+        if (left) {
+            if (left > len)
+                left = len;
+            zmemcpy(s->strm->next_out, s->window + s->block_start, left);
+            s->strm->next_out += left;
+            s->strm->avail_out -= left;
+            s->strm->total_out += left;
+            s->block_start += left;
+            len -= left;
+        }
+
+        /* Copy uncompressed bytes directly from next_in to next_out, updating
+         * the check value.
+         */
+        if (len) {
+            read_buf(s->strm, s->strm->next_out, len);
+            s->strm->next_out += len;
+            s->strm->avail_out -= len;
+            s->strm->total_out += len;
+        }
+    } while (last == 0);
+
+    /* Update the sliding window with the last s->w_size bytes of the copied
+     * data, or append all of the copied data to the existing window if less
+     * than s->w_size bytes were copied. Also update the number of bytes to
+     * insert in the hash tables, in the event that deflateParams() switches to
+     * a non-zero compression level.
+     */
+    used -= s->strm->avail_in;      /* number of input bytes directly copied */
+    if (used) {
+        /* If any input was used, then no unused input remains in the window,
+         * therefore s->block_start == s->strstart.
+         */
+        if (used >= s->w_size) {    /* supplant the previous history */
+            s->matches = 2;         /* clear hash */
+            zmemcpy(s->window, s->strm->next_in - s->w_size, s->w_size);
+            s->strstart = s->w_size;
+            s->insert = s->strstart;
+        }
+        else {
+            if (s->window_size - s->strstart <= used) {
+                /* Slide the window down. */
+                s->strstart -= s->w_size;
+                zmemcpy(s->window, s->window + s->w_size, s->strstart);
+                if (s->matches < 2)
+                    s->matches++;   /* add a pending slide_hash() */
+                if (s->insert > s->strstart)
+                    s->insert = s->strstart;
+            }
+            zmemcpy(s->window + s->strstart, s->strm->next_in - used, used);
+            s->strstart += used;
+            s->insert += MIN(used, s->w_size - s->insert);
+        }
+        s->block_start = s->strstart;
+    }
+    if (s->high_water < s->strstart)
+        s->high_water = s->strstart;
+
+    /* If the last block was written to next_out, then done. */
+    if (last)
+        return finish_done;
+
+    /* If flushing and all input has been consumed, then done. */
+    if (flush != Z_NO_FLUSH && flush != Z_FINISH &&
+        s->strm->avail_in == 0 && (long)s->strstart == s->block_start)
+        return block_done;
+
+    /* Fill the window with any remaining input. */
+    have = s->window_size - s->strstart;
+    if (s->strm->avail_in > have && s->block_start >= (long)s->w_size) {
+        /* Slide the window down. */
+        s->block_start -= s->w_size;
+        s->strstart -= s->w_size;
+        zmemcpy(s->window, s->window + s->w_size, s->strstart);
+        if (s->matches < 2)
+            s->matches++;           /* add a pending slide_hash() */
+        have += s->w_size;          /* more space now */
+        if (s->insert > s->strstart)
+            s->insert = s->strstart;
+    }
+    if (have > s->strm->avail_in)
+        have = s->strm->avail_in;
+    if (have) {
+        read_buf(s->strm, s->window + s->strstart, have);
+        s->strstart += have;
+        s->insert += MIN(have, s->w_size - s->insert);
+    }
+    if (s->high_water < s->strstart)
+        s->high_water = s->strstart;
+
+    /* There was not enough avail_out to write a complete worthy or flushed
+     * stored block to next_out. Write a stored block to pending instead, if we
+     * have enough input for a worthy block, or if flushing and there is enough
+     * room for the remaining input as a stored block in the pending buffer.
+     */
+    have = (s->bi_valid + 42) >> 3;         /* number of header bytes */
+        /* maximum stored block length that will fit in pending: */
+    have = MIN(s->pending_buf_size - have, MAX_STORED);
+    min_block = MIN(have, s->w_size);
+    left = s->strstart - s->block_start;
+    if (left >= min_block ||
+        ((left || flush == Z_FINISH) && flush != Z_NO_FLUSH &&
+         s->strm->avail_in == 0 && left <= have)) {
+        len = MIN(left, have);
+        last = flush == Z_FINISH && s->strm->avail_in == 0 &&
+               len == left ? 1 : 0;
+        _tr_stored_block(s, (charf *)s->window + s->block_start, len, last);
+        s->block_start += len;
+        flush_pending(s->strm);
+    }
+
+    /* We've done all we can with the available input and output. */
+    return last ? finish_started : need_more;
+}
+
+/* ===========================================================================
+ * Compress as much as possible from the input stream, return the current
+ * block state.
+ * This function does not perform lazy evaluation of matches and inserts
+ * new strings in the dictionary only for unmatched strings or for short
+ * matches. It is used only for the fast compression options.
+ */
+local block_state deflate_fast(deflate_state *s, int flush) {
+    IPos hash_head;       /* head of the hash chain */
+    int bflush;           /* set if current block must be flushed */
+
+    for (;;) {
+        /* Make sure that we always have enough lookahead, except
+         * at the end of the input file. We need MAX_MATCH bytes
+         * for the next match, plus MIN_MATCH bytes to insert the
+         * string following the next match.
+         */
+        if (s->lookahead < MIN_LOOKAHEAD) {
+            fill_window(s);
+            if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) {
+                return need_more;
+            }
+            if (s->lookahead == 0) break; /* flush the current block */
+        }
+
+        /* Insert the string window[strstart .. strstart + 2] in the
+         * dictionary, and set hash_head to the head of the hash chain:
+         */
+        hash_head = NIL;
+        if (s->lookahead >= MIN_MATCH) {
+            INSERT_STRING(s, s->strstart, hash_head);
+        }
+
+        /* Find the longest match, discarding those <= prev_length.
+         * At this point we have always match_length < MIN_MATCH
+         */
+        if (hash_head != NIL && s->strstart - hash_head <= MAX_DIST(s)) {
+            /* To simplify the code, we prevent matches with the string
+             * of window index 0 (in particular we have to avoid a match
+             * of the string with itself at the start of the input file).
+             */
+            s->match_length = longest_match (s, hash_head);
+            /* longest_match() sets match_start */
+        }
+        if (s->match_length >= MIN_MATCH) {
+            check_match(s, s->strstart, s->match_start, s->match_length);
+
+            _tr_tally_dist(s, s->strstart - s->match_start,
+                           s->match_length - MIN_MATCH, bflush);
+
+            s->lookahead -= s->match_length;
+
+            /* Insert new strings in the hash table only if the match length
+             * is not too large. This saves time but degrades compression.
+             */
+#ifndef FASTEST
+            if (s->match_length <= s->max_insert_length &&
+                s->lookahead >= MIN_MATCH) {
+                s->match_length--; /* string at strstart already in table */
+                do {
+                    s->strstart++;
+                    INSERT_STRING(s, s->strstart, hash_head);
+                    /* strstart never exceeds WSIZE-MAX_MATCH, so there are
+                     * always MIN_MATCH bytes ahead.
+                     */
+                } while (--s->match_length != 0);
+                s->strstart++;
+            } else
+#endif
+            {
+                s->strstart += s->match_length;
+                s->match_length = 0;
+                s->ins_h = s->window[s->strstart];
+                UPDATE_HASH(s, s->ins_h, s->window[s->strstart + 1]);
+#if MIN_MATCH != 3
+                Call UPDATE_HASH() MIN_MATCH-3 more times
+#endif
+                /* If lookahead < MIN_MATCH, ins_h is garbage, but it does not
+                 * matter since it will be recomputed at next deflate call.
+                 */
+            }
+        } else {
+            /* No match, output a literal byte */
+            Tracevv((stderr,"%c", s->window[s->strstart]));
+            _tr_tally_lit(s, s->window[s->strstart], bflush);
+            s->lookahead--;
+            s->strstart++;
+        }
+        if (bflush) FLUSH_BLOCK(s, 0);
+    }
+    s->insert = s->strstart < MIN_MATCH-1 ? s->strstart : MIN_MATCH-1;
+    if (flush == Z_FINISH) {
+        FLUSH_BLOCK(s, 1);
+        return finish_done;
+    }
+    if (s->sym_next)
+        FLUSH_BLOCK(s, 0);
+    return block_done;
+}
+
+#ifndef FASTEST
+/* ===========================================================================
+ * Same as above, but achieves better compression. We use a lazy
+ * evaluation for matches: a match is finally adopted only if there is
+ * no better match at the next window position.
+ */
+local block_state deflate_slow(deflate_state *s, int flush) {
+    IPos hash_head;          /* head of hash chain */
+    int bflush;              /* set if current block must be flushed */
+
+    /* Process the input block. */
+    for (;;) {
+        /* Make sure that we always have enough lookahead, except
+         * at the end of the input file. We need MAX_MATCH bytes
+         * for the next match, plus MIN_MATCH bytes to insert the
+         * string following the next match.
+         */
+        if (s->lookahead < MIN_LOOKAHEAD) {
+            fill_window(s);
+            if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) {
+                return need_more;
+            }
+            if (s->lookahead == 0) break; /* flush the current block */
+        }
+
+        /* Insert the string window[strstart .. strstart + 2] in the
+         * dictionary, and set hash_head to the head of the hash chain:
+         */
+        hash_head = NIL;
+        if (s->lookahead >= MIN_MATCH) {
+            INSERT_STRING(s, s->strstart, hash_head);
+        }
+
+        /* Find the longest match, discarding those <= prev_length.
+         */
+        s->prev_length = s->match_length, s->prev_match = s->match_start;
+        s->match_length = MIN_MATCH-1;
+
+        if (hash_head != NIL && s->prev_length < s->max_lazy_match &&
+            s->strstart - hash_head <= MAX_DIST(s)) {
+            /* To simplify the code, we prevent matches with the string
+             * of window index 0 (in particular we have to avoid a match
+             * of the string with itself at the start of the input file).
+             */
+            s->match_length = longest_match (s, hash_head);
+            /* longest_match() sets match_start */
+
+            if (s->match_length <= 5 && (s->strategy == Z_FILTERED
+#if TOO_FAR <= 32767
+                || (s->match_length == MIN_MATCH &&
+                    s->strstart - s->match_start > TOO_FAR)
+#endif
+                )) {
+
+                /* If prev_match is also MIN_MATCH, match_start is garbage
+                 * but we will ignore the current match anyway.
+                 */
+                s->match_length = MIN_MATCH-1;
+            }
+        }
+        /* If there was a match at the previous step and the current
+         * match is not better, output the previous match:
+         */
+        if (s->prev_length >= MIN_MATCH && s->match_length <= s->prev_length) {
+            uInt max_insert = s->strstart + s->lookahead - MIN_MATCH;
+            /* Do not insert strings in hash table beyond this. */
+
+            check_match(s, s->strstart - 1, s->prev_match, s->prev_length);
+
+            _tr_tally_dist(s, s->strstart - 1 - s->prev_match,
+                           s->prev_length - MIN_MATCH, bflush);
+
+            /* Insert in hash table all strings up to the end of the match.
+             * strstart - 1 and strstart are already inserted. If there is not
+             * enough lookahead, the last two strings are not inserted in
+             * the hash table.
+             */
+            s->lookahead -= s->prev_length - 1;
+            s->prev_length -= 2;
+            do {
+                if (++s->strstart <= max_insert) {
+                    INSERT_STRING(s, s->strstart, hash_head);
+                }
+            } while (--s->prev_length != 0);
+            s->match_available = 0;
+            s->match_length = MIN_MATCH-1;
+            s->strstart++;
+
+            if (bflush) FLUSH_BLOCK(s, 0);
+
+        } else if (s->match_available) {
+            /* If there was no match at the previous position, output a
+             * single literal. If there was a match but the current match
+             * is longer, truncate the previous match to a single literal.
+             */
+            Tracevv((stderr,"%c", s->window[s->strstart - 1]));
+            _tr_tally_lit(s, s->window[s->strstart - 1], bflush);
+            if (bflush) {
+                FLUSH_BLOCK_ONLY(s, 0);
+            }
+            s->strstart++;
+            s->lookahead--;
+            if (s->strm->avail_out == 0) return need_more;
+        } else {
+            /* There is no previous match to compare with, wait for
+             * the next step to decide.
+             */
+            s->match_available = 1;
+            s->strstart++;
+            s->lookahead--;
+        }
+    }
+    Assert (flush != Z_NO_FLUSH, "no flush?");
+    if (s->match_available) {
+        Tracevv((stderr,"%c", s->window[s->strstart - 1]));
+        _tr_tally_lit(s, s->window[s->strstart - 1], bflush);
+        s->match_available = 0;
+    }
+    s->insert = s->strstart < MIN_MATCH-1 ? s->strstart : MIN_MATCH-1;
+    if (flush == Z_FINISH) {
+        FLUSH_BLOCK(s, 1);
+        return finish_done;
+    }
+    if (s->sym_next)
+        FLUSH_BLOCK(s, 0);
+    return block_done;
+}
+#endif /* FASTEST */
+
+/* ===========================================================================
+ * For Z_RLE, simply look for runs of bytes, generate matches only of distance
+ * one.  Do not maintain a hash table.  (It will be regenerated if this run of
+ * deflate switches away from Z_RLE.)
+ */
+local block_state deflate_rle(deflate_state *s, int flush) {
+    int bflush;             /* set if current block must be flushed */
+    uInt prev;              /* byte at distance one to match */
+    Bytef *scan, *strend;   /* scan goes up to strend for length of run */
+
+    for (;;) {
+        /* Make sure that we always have enough lookahead, except
+         * at the end of the input file. We need MAX_MATCH bytes
+         * for the longest run, plus one for the unrolled loop.
+         */
+        if (s->lookahead <= MAX_MATCH) {
+            fill_window(s);
+            if (s->lookahead <= MAX_MATCH && flush == Z_NO_FLUSH) {
+                return need_more;
+            }
+            if (s->lookahead == 0) break; /* flush the current block */
+        }
+
+        /* See how many times the previous byte repeats */
+        s->match_length = 0;
+        if (s->lookahead >= MIN_MATCH && s->strstart > 0) {
+            scan = s->window + s->strstart - 1;
+            prev = *scan;
+            if (prev == *++scan && prev == *++scan && prev == *++scan) {
+                strend = s->window + s->strstart + MAX_MATCH;
+                do {
+                } while (prev == *++scan && prev == *++scan &&
+                         prev == *++scan && prev == *++scan &&
+                         prev == *++scan && prev == *++scan &&
+                         prev == *++scan && prev == *++scan &&
+                         scan < strend);
+                s->match_length = MAX_MATCH - (uInt)(strend - scan);
+                if (s->match_length > s->lookahead)
+                    s->match_length = s->lookahead;
+            }
+            Assert(scan <= s->window + (uInt)(s->window_size - 1),
+                   "wild scan");
+        }
+
+        /* Emit match if have run of MIN_MATCH or longer, else emit literal */
+        if (s->match_length >= MIN_MATCH) {
+            check_match(s, s->strstart, s->strstart - 1, s->match_length);
+
+            _tr_tally_dist(s, 1, s->match_length - MIN_MATCH, bflush);
+
+            s->lookahead -= s->match_length;
+            s->strstart += s->match_length;
+            s->match_length = 0;
+        } else {
+            /* No match, output a literal byte */
+            Tracevv((stderr,"%c", s->window[s->strstart]));
+            _tr_tally_lit(s, s->window[s->strstart], bflush);
+            s->lookahead--;
+            s->strstart++;
+        }
+        if (bflush) FLUSH_BLOCK(s, 0);
+    }
+    s->insert = 0;
+    if (flush == Z_FINISH) {
+        FLUSH_BLOCK(s, 1);
+        return finish_done;
+    }
+    if (s->sym_next)
+        FLUSH_BLOCK(s, 0);
+    return block_done;
+}
+
+/* ===========================================================================
+ * For Z_HUFFMAN_ONLY, do not look for matches.  Do not maintain a hash table.
+ * (It will be regenerated if this run of deflate switches away from Huffman.)
+ */
+local block_state deflate_huff(deflate_state *s, int flush) {
+    int bflush;             /* set if current block must be flushed */
+
+    for (;;) {
+        /* Make sure that we have a literal to write. */
+        if (s->lookahead == 0) {
+            fill_window(s);
+            if (s->lookahead == 0) {
+                if (flush == Z_NO_FLUSH)
+                    return need_more;
+                break;      /* flush the current block */
+            }
+        }
+
+        /* Output a literal byte */
+        s->match_length = 0;
+        Tracevv((stderr,"%c", s->window[s->strstart]));
+        _tr_tally_lit(s, s->window[s->strstart], bflush);
+        s->lookahead--;
+        s->strstart++;
+        if (bflush) FLUSH_BLOCK(s, 0);
+    }
+    s->insert = 0;
+    if (flush == Z_FINISH) {
+        FLUSH_BLOCK(s, 1);
+        return finish_done;
+    }
+    if (s->sym_next)
+        FLUSH_BLOCK(s, 0);
+    return block_done;
+}
diff --git a/compat/zlib/deflate.h b/compat/zlib/deflate.h
new file mode 100644
index 0000000..300c6ad
--- /dev/null
+++ b/compat/zlib/deflate.h
@@ -0,0 +1,377 @@
+/* deflate.h -- internal compression state
+ * Copyright (C) 1995-2024 Jean-loup Gailly
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+   part of the implementation of the compression library and is
+   subject to change. Applications should only use zlib.h.
+ */
+
+/* @(#) $Id$ */
+
+#ifndef DEFLATE_H
+#define DEFLATE_H
+
+#include "zutil.h"
+
+/* define NO_GZIP when compiling if you want to disable gzip header and
+   trailer creation by deflate().  NO_GZIP would be used to avoid linking in
+   the crc code when it is not needed.  For shared libraries, gzip encoding
+   should be left enabled. */
+#ifndef NO_GZIP
+#  define GZIP
+#endif
+
+/* define LIT_MEM to slightly increase the speed of deflate (order 1% to 2%) at
+   the cost of a larger memory footprint */
+/* #define LIT_MEM */
+
+/* ===========================================================================
+ * Internal compression state.
+ */
+
+#define LENGTH_CODES 29
+/* number of length codes, not counting the special END_BLOCK code */
+
+#define LITERALS  256
+/* number of literal bytes 0..255 */
+
+#define L_CODES (LITERALS+1+LENGTH_CODES)
+/* number of Literal or Length codes, including the END_BLOCK code */
+
+#define D_CODES   30
+/* number of distance codes */
+
+#define BL_CODES  19
+/* number of codes used to transfer the bit lengths */
+
+#define HEAP_SIZE (2*L_CODES+1)
+/* maximum heap size */
+
+#define MAX_BITS 15
+/* All codes must not exceed MAX_BITS bits */
+
+#define Buf_size 16
+/* size of bit buffer in bi_buf */
+
+#define INIT_STATE    42    /* zlib header -> BUSY_STATE */
+#ifdef GZIP
+#  define GZIP_STATE  57    /* gzip header -> BUSY_STATE | EXTRA_STATE */
+#endif
+#define EXTRA_STATE   69    /* gzip extra block -> NAME_STATE */
+#define NAME_STATE    73    /* gzip file name -> COMMENT_STATE */
+#define COMMENT_STATE 91    /* gzip comment -> HCRC_STATE */
+#define HCRC_STATE   103    /* gzip header CRC -> BUSY_STATE */
+#define BUSY_STATE   113    /* deflate -> FINISH_STATE */
+#define FINISH_STATE 666    /* stream complete */
+/* Stream status */
+
+
+/* Data structure describing a single value and its code string. */
+typedef struct ct_data_s {
+    union {
+        ush  freq;       /* frequency count */
+        ush  code;       /* bit string */
+    } fc;
+    union {
+        ush  dad;        /* father node in Huffman tree */
+        ush  len;        /* length of bit string */
+    } dl;
+} FAR ct_data;
+
+#define Freq fc.freq
+#define Code fc.code
+#define Dad  dl.dad
+#define Len  dl.len
+
+typedef struct static_tree_desc_s  static_tree_desc;
+
+typedef struct tree_desc_s {
+    ct_data *dyn_tree;           /* the dynamic tree */
+    int     max_code;            /* largest code with non zero frequency */
+    const static_tree_desc *stat_desc;  /* the corresponding static tree */
+} FAR tree_desc;
+
+typedef ush Pos;
+typedef Pos FAR Posf;
+typedef unsigned IPos;
+
+/* A Pos is an index in the character window. We use short instead of int to
+ * save space in the various tables. IPos is used only for parameter passing.
+ */
+
+typedef struct internal_state {
+    z_streamp strm;      /* pointer back to this zlib stream */
+    int   status;        /* as the name implies */
+    Bytef *pending_buf;  /* output still pending */
+    ulg   pending_buf_size; /* size of pending_buf */
+    Bytef *pending_out;  /* next pending byte to output to the stream */
+    ulg   pending;       /* nb of bytes in the pending buffer */
+    int   wrap;          /* bit 0 true for zlib, bit 1 true for gzip */
+    gz_headerp  gzhead;  /* gzip header information to write */
+    ulg   gzindex;       /* where in extra, name, or comment */
+    Byte  method;        /* can only be DEFLATED */
+    int   last_flush;    /* value of flush param for previous deflate call */
+
+                /* used by deflate.c: */
+
+    uInt  w_size;        /* LZ77 window size (32K by default) */
+    uInt  w_bits;        /* log2(w_size)  (8..16) */
+    uInt  w_mask;        /* w_size - 1 */
+
+    Bytef *window;
+    /* Sliding window. Input bytes are read into the second half of the window,
+     * and move to the first half later to keep a dictionary of at least wSize
+     * bytes. With this organization, matches are limited to a distance of
+     * wSize-MAX_MATCH bytes, but this ensures that IO is always
+     * performed with a length multiple of the block size. Also, it limits
+     * the window size to 64K, which is quite useful on MSDOS.
+     * To do: use the user input buffer as sliding window.
+     */
+
+    ulg window_size;
+    /* Actual size of window: 2*wSize, except when the user input buffer
+     * is directly used as sliding window.
+     */
+
+    Posf *prev;
+    /* Link to older string with same hash index. To limit the size of this
+     * array to 64K, this link is maintained only for the last 32K strings.
+     * An index in this array is thus a window index modulo 32K.
+     */
+
+    Posf *head; /* Heads of the hash chains or NIL. */
+
+    uInt  ins_h;          /* hash index of string to be inserted */
+    uInt  hash_size;      /* number of elements in hash table */
+    uInt  hash_bits;      /* log2(hash_size) */
+    uInt  hash_mask;      /* hash_size-1 */
+
+    uInt  hash_shift;
+    /* Number of bits by which ins_h must be shifted at each input
+     * step. It must be such that after MIN_MATCH steps, the oldest
+     * byte no longer takes part in the hash key, that is:
+     *   hash_shift * MIN_MATCH >= hash_bits
+     */
+
+    long block_start;
+    /* Window position at the beginning of the current output block. Gets
+     * negative when the window is moved backwards.
+     */
+
+    uInt match_length;           /* length of best match */
+    IPos prev_match;             /* previous match */
+    int match_available;         /* set if previous match exists */
+    uInt strstart;               /* start of string to insert */
+    uInt match_start;            /* start of matching string */
+    uInt lookahead;              /* number of valid bytes ahead in window */
+
+    uInt prev_length;
+    /* Length of the best match at previous step. Matches not greater than this
+     * are discarded. This is used in the lazy match evaluation.
+     */
+
+    uInt max_chain_length;
+    /* To speed up deflation, hash chains are never searched beyond this
+     * length.  A higher limit improves compression ratio but degrades the
+     * speed.
+     */
+
+    uInt max_lazy_match;
+    /* Attempt to find a better match only when the current match is strictly
+     * smaller than this value. This mechanism is used only for compression
+     * levels >= 4.
+     */
+#   define max_insert_length  max_lazy_match
+    /* Insert new strings in the hash table only if the match length is not
+     * greater than this length. This saves time but degrades compression.
+     * max_insert_length is used only for compression levels <= 3.
+     */
+
+    int level;    /* compression level (1..9) */
+    int strategy; /* favor or force Huffman coding*/
+
+    uInt good_match;
+    /* Use a faster search when the previous match is longer than this */
+
+    int nice_match; /* Stop searching when current match exceeds this */
+
+                /* used by trees.c: */
+    /* Didn't use ct_data typedef below to suppress compiler warning */
+    struct ct_data_s dyn_ltree[HEAP_SIZE];   /* literal and length tree */
+    struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */
+    struct ct_data_s bl_tree[2*BL_CODES+1];  /* Huffman tree for bit lengths */
+
+    struct tree_desc_s l_desc;               /* desc. for literal tree */
+    struct tree_desc_s d_desc;               /* desc. for distance tree */
+    struct tree_desc_s bl_desc;              /* desc. for bit length tree */
+
+    ush bl_count[MAX_BITS+1];
+    /* number of codes at each bit length for an optimal tree */
+
+    int heap[2*L_CODES+1];      /* heap used to build the Huffman trees */
+    int heap_len;               /* number of elements in the heap */
+    int heap_max;               /* element of largest frequency */
+    /* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used.
+     * The same heap array is used to build all trees.
+     */
+
+    uch depth[2*L_CODES+1];
+    /* Depth of each subtree used as tie breaker for trees of equal frequency
+     */
+
+#ifdef LIT_MEM
+#   define LIT_BUFS 5
+    ushf *d_buf;          /* buffer for distances */
+    uchf *l_buf;          /* buffer for literals/lengths */
+#else
+#   define LIT_BUFS 4
+    uchf *sym_buf;        /* buffer for distances and literals/lengths */
+#endif
+
+    uInt  lit_bufsize;
+    /* Size of match buffer for literals/lengths.  There are 4 reasons for
+     * limiting lit_bufsize to 64K:
+     *   - frequencies can be kept in 16 bit counters
+     *   - if compression is not successful for the first block, all input
+     *     data is still in the window so we can still emit a stored block even
+     *     when input comes from standard input.  (This can also be done for
+     *     all blocks if lit_bufsize is not greater than 32K.)
+     *   - if compression is not successful for a file smaller than 64K, we can
+     *     even emit a stored file instead of a stored block (saving 5 bytes).
+     *     This is applicable only for zip (not gzip or zlib).
+     *   - creating new Huffman trees less frequently may not provide fast
+     *     adaptation to changes in the input data statistics. (Take for
+     *     example a binary file with poorly compressible code followed by
+     *     a highly compressible string table.) Smaller buffer sizes give
+     *     fast adaptation but have of course the overhead of transmitting
+     *     trees more frequently.
+     *   - I can't count above 4
+     */
+
+    uInt sym_next;      /* running index in symbol buffer */
+    uInt sym_end;       /* symbol table full when sym_next reaches this */
+
+    ulg opt_len;        /* bit length of current block with optimal trees */
+    ulg static_len;     /* bit length of current block with static trees */
+    uInt matches;       /* number of string matches in current block */
+    uInt insert;        /* bytes at end of window left to insert */
+
+#ifdef ZLIB_DEBUG
+    ulg compressed_len; /* total bit length of compressed file mod 2^32 */
+    ulg bits_sent;      /* bit length of compressed data sent mod 2^32 */
+#endif
+
+    ush bi_buf;
+    /* Output buffer. bits are inserted starting at the bottom (least
+     * significant bits).
+     */
+    int bi_valid;
+    /* Number of valid bits in bi_buf.  All bits above the last valid bit
+     * are always zero.
+     */
+
+    ulg high_water;
+    /* High water mark offset in window for initialized bytes -- bytes above
+     * this are set to zero in order to avoid memory check warnings when
+     * longest match routines access bytes past the input.  This is then
+     * updated to the new high water mark.
+     */
+
+} FAR deflate_state;
+
+/* Output a byte on the stream.
+ * IN assertion: there is enough room in pending_buf.
+ */
+#define put_byte(s, c) {s->pending_buf[s->pending++] = (Bytef)(c);}
+
+
+#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
+/* Minimum amount of lookahead, except at the end of the input file.
+ * See deflate.c for comments about the MIN_MATCH+1.
+ */
+
+#define MAX_DIST(s)  ((s)->w_size-MIN_LOOKAHEAD)
+/* In order to simplify the code, particularly on 16 bit machines, match
+ * distances are limited to MAX_DIST instead of WSIZE.
+ */
+
+#define WIN_INIT MAX_MATCH
+/* Number of bytes after end of data in window to initialize in order to avoid
+   memory checker errors from longest match routines */
+
+        /* in trees.c */
+void ZLIB_INTERNAL _tr_init(deflate_state *s);
+int ZLIB_INTERNAL _tr_tally(deflate_state *s, unsigned dist, unsigned lc);
+void ZLIB_INTERNAL _tr_flush_block(deflate_state *s, charf *buf,
+                                   ulg stored_len, int last);
+void ZLIB_INTERNAL _tr_flush_bits(deflate_state *s);
+void ZLIB_INTERNAL _tr_align(deflate_state *s);
+void ZLIB_INTERNAL _tr_stored_block(deflate_state *s, charf *buf,
+                                    ulg stored_len, int last);
+
+#define d_code(dist) \
+   ((dist) < 256 ? _dist_code[dist] : _dist_code[256+((dist)>>7)])
+/* Mapping from a distance to a distance code. dist is the distance - 1 and
+ * must not have side effects. _dist_code[256] and _dist_code[257] are never
+ * used.
+ */
+
+#ifndef ZLIB_DEBUG
+/* Inline versions of _tr_tally for speed: */
+
+#if defined(GEN_TREES_H) || !defined(STDC)
+  extern uch ZLIB_INTERNAL _length_code[];
+  extern uch ZLIB_INTERNAL _dist_code[];
+#else
+  extern const uch ZLIB_INTERNAL _length_code[];
+  extern const uch ZLIB_INTERNAL _dist_code[];
+#endif
+
+#ifdef LIT_MEM
+# define _tr_tally_lit(s, c, flush) \
+  { uch cc = (c); \
+    s->d_buf[s->sym_next] = 0; \
+    s->l_buf[s->sym_next++] = cc; \
+    s->dyn_ltree[cc].Freq++; \
+    flush = (s->sym_next == s->sym_end); \
+   }
+# define _tr_tally_dist(s, distance, length, flush) \
+  { uch len = (uch)(length); \
+    ush dist = (ush)(distance); \
+    s->d_buf[s->sym_next] = dist; \
+    s->l_buf[s->sym_next++] = len; \
+    dist--; \
+    s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \
+    s->dyn_dtree[d_code(dist)].Freq++; \
+    flush = (s->sym_next == s->sym_end); \
+  }
+#else
+# define _tr_tally_lit(s, c, flush) \
+  { uch cc = (c); \
+    s->sym_buf[s->sym_next++] = 0; \
+    s->sym_buf[s->sym_next++] = 0; \
+    s->sym_buf[s->sym_next++] = cc; \
+    s->dyn_ltree[cc].Freq++; \
+    flush = (s->sym_next == s->sym_end); \
+   }
+# define _tr_tally_dist(s, distance, length, flush) \
+  { uch len = (uch)(length); \
+    ush dist = (ush)(distance); \
+    s->sym_buf[s->sym_next++] = (uch)dist; \
+    s->sym_buf[s->sym_next++] = (uch)(dist >> 8); \
+    s->sym_buf[s->sym_next++] = len; \
+    dist--; \
+    s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \
+    s->dyn_dtree[d_code(dist)].Freq++; \
+    flush = (s->sym_next == s->sym_end); \
+  }
+#endif
+#else
+# define _tr_tally_lit(s, c, flush) flush = _tr_tally(s, 0, c)
+# define _tr_tally_dist(s, distance, length, flush) \
+              flush = _tr_tally(s, distance, length)
+#endif
+
+#endif /* DEFLATE_H */
diff --git a/compat/zlib/doc/algorithm.txt b/compat/zlib/doc/algorithm.txt
new file mode 100644
index 0000000..029e5a3
--- /dev/null
+++ b/compat/zlib/doc/algorithm.txt
@@ -0,0 +1,209 @@
+1. Compression algorithm (deflate)
+
+The deflation algorithm used by gzip (also zip and zlib) is a variation of
+LZ77 (Lempel-Ziv 1977, see reference below). It finds duplicated strings in
+the input data.  The second occurrence of a string is replaced by a
+pointer to the previous string, in the form of a pair (distance,
+length).  Distances are limited to 32K bytes, and lengths are limited
+to 258 bytes. When a string does not occur anywhere in the previous
+32K bytes, it is emitted as a sequence of literal bytes.  (In this
+description, `string' must be taken as an arbitrary sequence of bytes,
+and is not restricted to printable characters.)
+
+Literals or match lengths are compressed with one Huffman tree, and
+match distances are compressed with another tree. The trees are stored
+in a compact form at the start of each block. The blocks can have any
+size (except that the compressed data for one block must fit in
+available memory). A block is terminated when deflate() determines that
+it would be useful to start another block with fresh trees. (This is
+somewhat similar to the behavior of LZW-based _compress_.)
+
+Duplicated strings are found using a hash table. All input strings of
+length 3 are inserted in the hash table. A hash index is computed for
+the next 3 bytes. If the hash chain for this index is not empty, all
+strings in the chain are compared with the current input string, and
+the longest match is selected.
+
+The hash chains are searched starting with the most recent strings, to
+favor small distances and thus take advantage of the Huffman encoding.
+The hash chains are singly linked. There are no deletions from the
+hash chains, the algorithm simply discards matches that are too old.
+
+To avoid a worst-case situation, very long hash chains are arbitrarily
+truncated at a certain length, determined by a runtime option (level
+parameter of deflateInit). So deflate() does not always find the longest
+possible match but generally finds a match which is long enough.
+
+deflate() also defers the selection of matches with a lazy evaluation
+mechanism. After a match of length N has been found, deflate() searches for
+a longer match at the next input byte. If a longer match is found, the
+previous match is truncated to a length of one (thus producing a single
+literal byte) and the process of lazy evaluation begins again. Otherwise,
+the original match is kept, and the next match search is attempted only N
+steps later.
+
+The lazy match evaluation is also subject to a runtime parameter. If
+the current match is long enough, deflate() reduces the search for a longer
+match, thus speeding up the whole process. If compression ratio is more
+important than speed, deflate() attempts a complete second search even if
+the first match is already long enough.
+
+The lazy match evaluation is not performed for the fastest compression
+modes (level parameter 1 to 3). For these fast modes, new strings
+are inserted in the hash table only when no match was found, or
+when the match is not too long. This degrades the compression ratio
+but saves time since there are both fewer insertions and fewer searches.
+
+
+2. Decompression algorithm (inflate)
+
+2.1 Introduction
+
+The key question is how to represent a Huffman code (or any prefix code) so
+that you can decode fast.  The most important characteristic is that shorter
+codes are much more common than longer codes, so pay attention to decoding the
+short codes fast, and let the long codes take longer to decode.
+
+inflate() sets up a first level table that covers some number of bits of
+input less than the length of longest code.  It gets that many bits from the
+stream, and looks it up in the table.  The table will tell if the next
+code is that many bits or less and how many, and if it is, it will tell
+the value, else it will point to the next level table for which inflate()
+grabs more bits and tries to decode a longer code.
+
+How many bits to make the first lookup is a tradeoff between the time it
+takes to decode and the time it takes to build the table.  If building the
+table took no time (and if you had infinite memory), then there would only
+be a first level table to cover all the way to the longest code.  However,
+building the table ends up taking a lot longer for more bits since short
+codes are replicated many times in such a table.  What inflate() does is
+simply to make the number of bits in the first table a variable, and then
+to set that variable for the maximum speed.
+
+For inflate, which has 286 possible codes for the literal/length tree, the size
+of the first table is nine bits.  Also the distance trees have 30 possible
+values, and the size of the first table is six bits.  Note that for each of
+those cases, the table ended up one bit longer than the ``average'' code
+length, i.e. the code length of an approximately flat code which would be a
+little more than eight bits for 286 symbols and a little less than five bits
+for 30 symbols.
+
+
+2.2 More details on the inflate table lookup
+
+Ok, you want to know what this cleverly obfuscated inflate tree actually
+looks like.  You are correct that it's not a Huffman tree.  It is simply a
+lookup table for the first, let's say, nine bits of a Huffman symbol.  The
+symbol could be as short as one bit or as long as 15 bits.  If a particular
+symbol is shorter than nine bits, then that symbol's translation is duplicated
+in all those entries that start with that symbol's bits.  For example, if the
+symbol is four bits, then it's duplicated 32 times in a nine-bit table.  If a
+symbol is nine bits long, it appears in the table once.
+
+If the symbol is longer than nine bits, then that entry in the table points
+to another similar table for the remaining bits.  Again, there are duplicated
+entries as needed.  The idea is that most of the time the symbol will be short
+and there will only be one table look up.  (That's whole idea behind data
+compression in the first place.)  For the less frequent long symbols, there
+will be two lookups.  If you had a compression method with really long
+symbols, you could have as many levels of lookups as is efficient.  For
+inflate, two is enough.
+
+So a table entry either points to another table (in which case nine bits in
+the above example are gobbled), or it contains the translation for the symbol
+and the number of bits to gobble.  Then you start again with the next
+ungobbled bit.
+
+You may wonder: why not just have one lookup table for how ever many bits the
+longest symbol is?  The reason is that if you do that, you end up spending
+more time filling in duplicate symbol entries than you do actually decoding.
+At least for deflate's output that generates new trees every several 10's of
+kbytes.  You can imagine that filling in a 2^15 entry table for a 15-bit code
+would take too long if you're only decoding several thousand symbols.  At the
+other extreme, you could make a new table for every bit in the code.  In fact,
+that's essentially a Huffman tree.  But then you spend too much time
+traversing the tree while decoding, even for short symbols.
+
+So the number of bits for the first lookup table is a trade of the time to
+fill out the table vs. the time spent looking at the second level and above of
+the table.
+
+Here is an example, scaled down:
+
+The code being decoded, with 10 symbols, from 1 to 6 bits long:
+
+A: 0
+B: 10
+C: 1100
+D: 11010
+E: 11011
+F: 11100
+G: 11101
+H: 11110
+I: 111110
+J: 111111
+
+Let's make the first table three bits long (eight entries):
+
+000: A,1
+001: A,1
+010: A,1
+011: A,1
+100: B,2
+101: B,2
+110: -> table X (gobble 3 bits)
+111: -> table Y (gobble 3 bits)
+
+Each entry is what the bits decode as and how many bits that is, i.e. how
+many bits to gobble.  Or the entry points to another table, with the number of
+bits to gobble implicit in the size of the table.
+
+Table X is two bits long since the longest code starting with 110 is five bits
+long:
+
+00: C,1
+01: C,1
+10: D,2
+11: E,2
+
+Table Y is three bits long since the longest code starting with 111 is six
+bits long:
+
+000: F,2
+001: F,2
+010: G,2
+011: G,2
+100: H,2
+101: H,2
+110: I,3
+111: J,3
+
+So what we have here are three tables with a total of 20 entries that had to
+be constructed.  That's compared to 64 entries for a single table.  Or
+compared to 16 entries for a Huffman tree (six two entry tables and one four
+entry table).  Assuming that the code ideally represents the probability of
+the symbols, it takes on the average 1.25 lookups per symbol.  That's compared
+to one lookup for the single table, or 1.66 lookups per symbol for the
+Huffman tree.
+
+There, I think that gives you a picture of what's going on.  For inflate, the
+meaning of a particular symbol is often more than just a letter.  It can be a
+byte (a "literal"), or it can be either a length or a distance which
+indicates a base value and a number of bits to fetch after the code that is
+added to the base value.  Or it might be the special end-of-block code.  The
+data structures created in inftrees.c try to encode all that information
+compactly in the tables.
+
+
+Jean-loup Gailly        Mark Adler
+jloup@gzip.org          madler@alumni.caltech.edu
+
+
+References:
+
+[LZ77] Ziv J., Lempel A., ``A Universal Algorithm for Sequential Data
+Compression,'' IEEE Transactions on Information Theory, Vol. 23, No. 3,
+pp. 337-343.
+
+``DEFLATE Compressed Data Format Specification'' available in
+http://tools.ietf.org/html/rfc1951
diff --git a/compat/zlib/doc/crc-doc.1.0.pdf b/compat/zlib/doc/crc-doc.1.0.pdf
new file mode 100644
index 0000000..d6942ec
--- /dev/null
+++ b/compat/zlib/doc/crc-doc.1.0.pdf
diff --git a/compat/zlib/doc/rfc1950.txt b/compat/zlib/doc/rfc1950.txt
new file mode 100644
index 0000000..ce6428a
--- /dev/null
+++ b/compat/zlib/doc/rfc1950.txt
@@ -0,0 +1,619 @@
+
+
+
+
+
+
+Network Working Group                                         P. Deutsch
+Request for Comments: 1950                           Aladdin Enterprises
+Category: Informational                                      J-L. Gailly
+                                                                Info-ZIP
+                                                                May 1996
+
+
+         ZLIB Compressed Data Format Specification version 3.3
+
+Status of This Memo
+
+   This memo provides information for the Internet community.  This memo
+   does not specify an Internet standard of any kind.  Distribution of
+   this memo is unlimited.
+
+IESG Note:
+
+   The IESG takes no position on the validity of any Intellectual
+   Property Rights statements contained in this document.
+
+Notices
+
+   Copyright (c) 1996 L. Peter Deutsch and Jean-Loup Gailly
+
+   Permission is granted to copy and distribute this document for any
+   purpose and without charge, including translations into other
+   languages and incorporation into compilations, provided that the
+   copyright notice and this notice are preserved, and that any
+   substantive changes or deletions from the original are clearly
+   marked.
+
+   A pointer to the latest version of this and related documentation in
+   HTML format can be found at the URL
+   <ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html>.
+
+Abstract
+
+   This specification defines a lossless compressed data format.  The
+   data can be produced or consumed, even for an arbitrarily long
+   sequentially presented input data stream, using only an a priori
+   bounded amount of intermediate storage.  The format presently uses
+   the DEFLATE compression method but can be easily extended to use
+   other compression methods.  It can be implemented readily in a manner
+   not covered by patents.  This specification also defines the ADLER-32
+   checksum (an extension and improvement of the Fletcher checksum),
+   used for detection of data corruption, and provides an algorithm for
+   computing it.
+
+
+
+
+Deutsch & Gailly             Informational                      [Page 1]
+
+RFC 1950       ZLIB Compressed Data Format Specification        May 1996
+
+
+Table of Contents
+
+   1. Introduction ................................................... 2
+      1.1. Purpose ................................................... 2
+      1.2. Intended audience ......................................... 3
+      1.3. Scope ..................................................... 3
+      1.4. Compliance ................................................ 3
+      1.5.  Definitions of terms and conventions used ................ 3
+      1.6. Changes from previous versions ............................ 3
+   2. Detailed specification ......................................... 3
+      2.1. Overall conventions ....................................... 3
+      2.2. Data format ............................................... 4
+      2.3. Compliance ................................................ 7
+   3. References ..................................................... 7
+   4. Source code .................................................... 8
+   5. Security Considerations ........................................ 8
+   6. Acknowledgements ............................................... 8
+   7. Authors' Addresses ............................................. 8
+   8. Appendix: Rationale ............................................ 9
+   9. Appendix: Sample code ..........................................10
+
+1. Introduction
+
+   1.1. Purpose
+
+      The purpose of this specification is to define a lossless
+      compressed data format that:
+
+          * Is independent of CPU type, operating system, file system,
+            and character set, and hence can be used for interchange;
+
+          * Can be produced or consumed, even for an arbitrarily long
+            sequentially presented input data stream, using only an a
+            priori bounded amount of intermediate storage, and hence can
+            be used in data communications or similar structures such as
+            Unix filters;
+
+          * Can use a number of different compression methods;
+
+          * Can be implemented readily in a manner not covered by
+            patents, and hence can be practiced freely.
+
+      The data format defined by this specification does not attempt to
+      allow random access to compressed data.
+
+
+
+
+
+
+
+Deutsch & Gailly             Informational                      [Page 2]
+
+RFC 1950       ZLIB Compressed Data Format Specification        May 1996
+
+
+   1.2. Intended audience
+
+      This specification is intended for use by implementors of software
+      to compress data into zlib format and/or decompress data from zlib
+      format.
+
+      The text of the specification assumes a basic background in
+      programming at the level of bits and other primitive data
+      representations.
+
+   1.3. Scope
+
+      The specification specifies a compressed data format that can be
+      used for in-memory compression of a sequence of arbitrary bytes.
+
+   1.4. Compliance
+
+      Unless otherwise indicated below, a compliant decompressor must be
+      able to accept and decompress any data set that conforms to all
+      the specifications presented here; a compliant compressor must
+      produce data sets that conform to all the specifications presented
+      here.
+
+   1.5.  Definitions of terms and conventions used
+
+      byte: 8 bits stored or transmitted as a unit (same as an octet).
+      (For this specification, a byte is exactly 8 bits, even on
+      machines which store a character on a number of bits different
+      from 8.) See below, for the numbering of bits within a byte.
+
+   1.6. Changes from previous versions
+
+      Version 3.1 was the first public release of this specification.
+      In version 3.2, some terminology was changed and the Adler-32
+      sample code was rewritten for clarity.  In version 3.3, the
+      support for a preset dictionary was introduced, and the
+      specification was converted to RFC style.
+
+2. Detailed specification
+
+   2.1. Overall conventions
+
+      In the diagrams below, a box like this:
+
+         +---+
+         |   | <-- the vertical bars might be missing
+         +---+
+
+
+
+
+Deutsch & Gailly             Informational                      [Page 3]
+
+RFC 1950       ZLIB Compressed Data Format Specification        May 1996
+
+
+      represents one byte; a box like this:
+
+         +==============+
+         |              |
+         +==============+
+
+      represents a variable number of bytes.
+
+      Bytes stored within a computer do not have a "bit order", since
+      they are always treated as a unit.  However, a byte considered as
+      an integer between 0 and 255 does have a most- and least-
+      significant bit, and since we write numbers with the most-
+      significant digit on the left, we also write bytes with the most-
+      significant bit on the left.  In the diagrams below, we number the
+      bits of a byte so that bit 0 is the least-significant bit, i.e.,
+      the bits are numbered:
+
+         +--------+
+         |76543210|
+         +--------+
+
+      Within a computer, a number may occupy multiple bytes.  All
+      multi-byte numbers in the format described here are stored with
+      the MOST-significant byte first (at the lower memory address).
+      For example, the decimal number 520 is stored as:
+
+             0     1
+         +--------+--------+
+         |00000010|00001000|
+         +--------+--------+
+          ^        ^
+          |        |
+          |        + less significant byte = 8
+          + more significant byte = 2 x 256
+
+   2.2. Data format
+
+      A zlib stream has the following structure:
+
+           0   1
+         +---+---+
+         |CMF|FLG|   (more-->)
+         +---+---+
+
+
+
+
+
+
+
+
+Deutsch & Gailly             Informational                      [Page 4]
+
+RFC 1950       ZLIB Compressed Data Format Specification        May 1996
+
+
+      (if FLG.FDICT set)
+
+           0   1   2   3
+         +---+---+---+---+
+         |     DICTID    |   (more-->)
+         +---+---+---+---+
+
+         +=====================+---+---+---+---+
+         |...compressed data...|    ADLER32    |
+         +=====================+---+---+---+---+
+
+      Any data which may appear after ADLER32 are not part of the zlib
+      stream.
+
+      CMF (Compression Method and flags)
+         This byte is divided into a 4-bit compression method and a 4-
+         bit information field depending on the compression method.
+
+            bits 0 to 3  CM     Compression method
+            bits 4 to 7  CINFO  Compression info
+
+      CM (Compression method)
+         This identifies the compression method used in the file. CM = 8
+         denotes the "deflate" compression method with a window size up
+         to 32K.  This is the method used by gzip and PNG (see
+         references [1] and [2] in Chapter 3, below, for the reference
+         documents).  CM = 15 is reserved.  It might be used in a future
+         version of this specification to indicate the presence of an
+         extra field before the compressed data.
+
+      CINFO (Compression info)
+         For CM = 8, CINFO is the base-2 logarithm of the LZ77 window
+         size, minus eight (CINFO=7 indicates a 32K window size). Values
+         of CINFO above 7 are not allowed in this version of the
+         specification.  CINFO is not defined in this specification for
+         CM not equal to 8.
+
+      FLG (FLaGs)
+         This flag byte is divided as follows:
+
+            bits 0 to 4  FCHECK  (check bits for CMF and FLG)
+            bit  5       FDICT   (preset dictionary)
+            bits 6 to 7  FLEVEL  (compression level)
+
+         The FCHECK value must be such that CMF and FLG, when viewed as
+         a 16-bit unsigned integer stored in MSB order (CMF*256 + FLG),
+         is a multiple of 31.
+
+
+
+
+Deutsch & Gailly             Informational                      [Page 5]
+
+RFC 1950       ZLIB Compressed Data Format Specification        May 1996
+
+
+      FDICT (Preset dictionary)
+         If FDICT is set, a DICT dictionary identifier is present
+         immediately after the FLG byte. The dictionary is a sequence of
+         bytes which are initially fed to the compressor without
+         producing any compressed output. DICT is the Adler-32 checksum
+         of this sequence of bytes (see the definition of ADLER32
+         below).  The decompressor can use this identifier to determine
+         which dictionary has been used by the compressor.
+
+      FLEVEL (Compression level)
+         These flags are available for use by specific compression
+         methods.  The "deflate" method (CM = 8) sets these flags as
+         follows:
+
+            0 - compressor used fastest algorithm
+            1 - compressor used fast algorithm
+            2 - compressor used default algorithm
+            3 - compressor used maximum compression, slowest algorithm
+
+         The information in FLEVEL is not needed for decompression; it
+         is there to indicate if recompression might be worthwhile.
+
+      compressed data
+         For compression method 8, the compressed data is stored in the
+         deflate compressed data format as described in the document
+         "DEFLATE Compressed Data Format Specification" by L. Peter
+         Deutsch. (See reference [3] in Chapter 3, below)
+
+         Other compressed data formats are not specified in this version
+         of the zlib specification.
+
+      ADLER32 (Adler-32 checksum)
+         This contains a checksum value of the uncompressed data
+         (excluding any dictionary data) computed according to Adler-32
+         algorithm. This algorithm is a 32-bit extension and improvement
+         of the Fletcher algorithm, used in the ITU-T X.224 / ISO 8073
+         standard. See references [4] and [5] in Chapter 3, below)
+
+         Adler-32 is composed of two sums accumulated per byte: s1 is
+         the sum of all bytes, s2 is the sum of all s1 values. Both sums
+         are done modulo 65521. s1 is initialized to 1, s2 to zero.  The
+         Adler-32 checksum is stored as s2*65536 + s1 in most-
+         significant-byte first (network) order.
+
+
+
+
+
+
+
+
+Deutsch & Gailly             Informational                      [Page 6]
+
+RFC 1950       ZLIB Compressed Data Format Specification        May 1996
+
+
+   2.3. Compliance
+
+      A compliant compressor must produce streams with correct CMF, FLG
+      and ADLER32, but need not support preset dictionaries.  When the
+      zlib data format is used as part of another standard data format,
+      the compressor may use only preset dictionaries that are specified
+      by this other data format.  If this other format does not use the
+      preset dictionary feature, the compressor must not set the FDICT
+      flag.
+
+      A compliant decompressor must check CMF, FLG, and ADLER32, and
+      provide an error indication if any of these have incorrect values.
+      A compliant decompressor must give an error indication if CM is
+      not one of the values defined in this specification (only the
+      value 8 is permitted in this version), since another value could
+      indicate the presence of new features that would cause subsequent
+      data to be interpreted incorrectly.  A compliant decompressor must
+      give an error indication if FDICT is set and DICTID is not the
+      identifier of a known preset dictionary.  A decompressor may
+      ignore FLEVEL and still be compliant.  When the zlib data format
+      is being used as a part of another standard format, a compliant
+      decompressor must support all the preset dictionaries specified by
+      the other format. When the other format does not use the preset
+      dictionary feature, a compliant decompressor must reject any
+      stream in which the FDICT flag is set.
+
+3. References
+
+   [1] Deutsch, L.P.,"GZIP Compressed Data Format Specification",
+       available in ftp://ftp.uu.net/pub/archiving/zip/doc/
+
+   [2] Thomas Boutell, "PNG (Portable Network Graphics) specification",
+       available in ftp://ftp.uu.net/graphics/png/documents/
+
+   [3] Deutsch, L.P.,"DEFLATE Compressed Data Format Specification",
+       available in ftp://ftp.uu.net/pub/archiving/zip/doc/
+
+   [4] Fletcher, J. G., "An Arithmetic Checksum for Serial
+       Transmissions," IEEE Transactions on Communications, Vol. COM-30,
+       No. 1, January 1982, pp. 247-252.
+
+   [5] ITU-T Recommendation X.224, Annex D, "Checksum Algorithms,"
+       November, 1993, pp. 144, 145. (Available from
+       gopher://info.itu.ch). ITU-T X.244 is also the same as ISO 8073.
+
+
+
+
+
+
+
+Deutsch & Gailly             Informational                      [Page 7]
+
+RFC 1950       ZLIB Compressed Data Format Specification        May 1996
+
+
+4. Source code
+
+   Source code for a C language implementation of a "zlib" compliant
+   library is available at ftp://ftp.uu.net/pub/archiving/zip/zlib/.
+
+5. Security Considerations
+
+   A decoder that fails to check the ADLER32 checksum value may be
+   subject to undetected data corruption.
+
+6. Acknowledgements
+
+   Trademarks cited in this document are the property of their
+   respective owners.
+
+   Jean-Loup Gailly and Mark Adler designed the zlib format and wrote
+   the related software described in this specification.  Glenn
+   Randers-Pehrson converted this document to RFC and HTML format.
+
+7. Authors' Addresses
+
+   L. Peter Deutsch
+   Aladdin Enterprises
+   203 Santa Margarita Ave.
+   Menlo Park, CA 94025
+
+   Phone: (415) 322-0103 (AM only)
+   FAX:   (415) 322-1734
+   EMail: <ghost@aladdin.com>
+
+
+   Jean-Loup Gailly
+
+   EMail: <gzip@prep.ai.mit.edu>
+
+   Questions about the technical content of this specification can be
+   sent by email to
+
+   Jean-Loup Gailly <gzip@prep.ai.mit.edu> and
+   Mark Adler <madler@alumni.caltech.edu>
+
+   Editorial comments on this specification can be sent by email to
+
+   L. Peter Deutsch <ghost@aladdin.com> and
+   Glenn Randers-Pehrson <randeg@alumni.rpi.edu>
+
+
+
+
+
+
+Deutsch & Gailly             Informational                      [Page 8]
+
+RFC 1950       ZLIB Compressed Data Format Specification        May 1996
+
+
+8. Appendix: Rationale
+
+   8.1. Preset dictionaries
+
+      A preset dictionary is specially useful to compress short input
+      sequences. The compressor can take advantage of the dictionary
+      context to encode the input in a more compact manner. The
+      decompressor can be initialized with the appropriate context by
+      virtually decompressing a compressed version of the dictionary
+      without producing any output. However for certain compression
+      algorithms such as the deflate algorithm this operation can be
+      achieved without actually performing any decompression.
+
+      The compressor and the decompressor must use exactly the same
+      dictionary. The dictionary may be fixed or may be chosen among a
+      certain number of predefined dictionaries, according to the kind
+      of input data. The decompressor can determine which dictionary has
+      been chosen by the compressor by checking the dictionary
+      identifier. This document does not specify the contents of
+      predefined dictionaries, since the optimal dictionaries are
+      application specific. Standard data formats using this feature of
+      the zlib specification must precisely define the allowed
+      dictionaries.
+
+   8.2. The Adler-32 algorithm
+
+      The Adler-32 algorithm is much faster than the CRC32 algorithm yet
+      still provides an extremely low probability of undetected errors.
+
+      The modulo on unsigned long accumulators can be delayed for 5552
+      bytes, so the modulo operation time is negligible.  If the bytes
+      are a, b, c, the second sum is 3a + 2b + c + 3, and so is position
+      and order sensitive, unlike the first sum, which is just a
+      checksum.  That 65521 is prime is important to avoid a possible
+      large class of two-byte errors that leave the check unchanged.
+      (The Fletcher checksum uses 255, which is not prime and which also
+      makes the Fletcher check insensitive to single byte changes 0 <->
+      255.)
+
+      The sum s1 is initialized to 1 instead of zero to make the length
+      of the sequence part of s2, so that the length does not have to be
+      checked separately. (Any sequence of zeroes has a Fletcher
+      checksum of zero.)
+
+
+
+
+
+
+
+
+Deutsch & Gailly             Informational                      [Page 9]
+
+RFC 1950       ZLIB Compressed Data Format Specification        May 1996
+
+
+9. Appendix: Sample code
+
+   The following C code computes the Adler-32 checksum of a data buffer.
+   It is written for clarity, not for speed.  The sample code is in the
+   ANSI C programming language. Non C users may find it easier to read
+   with these hints:
+
+      &      Bitwise AND operator.
+      >>     Bitwise right shift operator. When applied to an
+             unsigned quantity, as here, right shift inserts zero bit(s)
+             at the left.
+      <<     Bitwise left shift operator. Left shift inserts zero
+             bit(s) at the right.
+      ++     "n++" increments the variable n.
+      %      modulo operator: a % b is the remainder of a divided by b.
+
+      #define BASE 65521 /* largest prime smaller than 65536 */
+
+      /*
+         Update a running Adler-32 checksum with the bytes buf[0..len-1]
+       and return the updated checksum. The Adler-32 checksum should be
+       initialized to 1.
+
+       Usage example:
+
+         unsigned long adler = 1L;
+
+         while (read_buffer(buffer, length) != EOF) {
+           adler = update_adler32(adler, buffer, length);
+         }
+         if (adler != original_adler) error();
+      */
+      unsigned long update_adler32(unsigned long adler,
+         unsigned char *buf, int len)
+      {
+        unsigned long s1 = adler & 0xffff;
+        unsigned long s2 = (adler >> 16) & 0xffff;
+        int n;
+
+        for (n = 0; n < len; n++) {
+          s1 = (s1 + buf[n]) % BASE;
+          s2 = (s2 + s1)     % BASE;
+        }
+        return (s2 << 16) + s1;
+      }
+
+      /* Return the adler32 of the bytes buf[0..len-1] */
+
+
+
+
+Deutsch & Gailly             Informational                     [Page 10]
+
+RFC 1950       ZLIB Compressed Data Format Specification        May 1996
+
+
+      unsigned long adler32(unsigned char *buf, int len)
+      {
+        return update_adler32(1L, buf, len);
+      }
+
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+Deutsch & Gailly             Informational                     [Page 11]
+
diff --git a/compat/zlib/doc/rfc1951.txt b/compat/zlib/doc/rfc1951.txt
new file mode 100644
index 0000000..403c8c7
--- /dev/null
+++ b/compat/zlib/doc/rfc1951.txt
@@ -0,0 +1,955 @@
+
+
+
+
+
+
+Network Working Group                                         P. Deutsch
+Request for Comments: 1951                           Aladdin Enterprises
+Category: Informational                                         May 1996
+
+
+        DEFLATE Compressed Data Format Specification version 1.3
+
+Status of This Memo
+
+   This memo provides information for the Internet community.  This memo
+   does not specify an Internet standard of any kind.  Distribution of
+   this memo is unlimited.
+
+IESG Note:
+
+   The IESG takes no position on the validity of any Intellectual
+   Property Rights statements contained in this document.
+
+Notices
+
+   Copyright (c) 1996 L. Peter Deutsch
+
+   Permission is granted to copy and distribute this document for any
+   purpose and without charge, including translations into other
+   languages and incorporation into compilations, provided that the
+   copyright notice and this notice are preserved, and that any
+   substantive changes or deletions from the original are clearly
+   marked.
+
+   A pointer to the latest version of this and related documentation in
+   HTML format can be found at the URL
+   <ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html>.
+
+Abstract
+
+   This specification defines a lossless compressed data format that
+   compresses data using a combination of the LZ77 algorithm and Huffman
+   coding, with efficiency comparable to the best currently available
+   general-purpose compression methods.  The data can be produced or
+   consumed, even for an arbitrarily long sequentially presented input
+   data stream, using only an a priori bounded amount of intermediate
+   storage.  The format can be implemented readily in a manner not
+   covered by patents.
+
+
+
+
+
+
+
+
+Deutsch                      Informational                      [Page 1]
+
+RFC 1951      DEFLATE Compressed Data Format Specification      May 1996
+
+
+Table of Contents
+
+   1. Introduction ................................................... 2
+      1.1. Purpose ................................................... 2
+      1.2. Intended audience ......................................... 3
+      1.3. Scope ..................................................... 3
+      1.4. Compliance ................................................ 3
+      1.5.  Definitions of terms and conventions used ................ 3
+      1.6. Changes from previous versions ............................ 4
+   2. Compressed representation overview ............................. 4
+   3. Detailed specification ......................................... 5
+      3.1. Overall conventions ....................................... 5
+          3.1.1. Packing into bytes .................................. 5
+      3.2. Compressed block format ................................... 6
+          3.2.1. Synopsis of prefix and Huffman coding ............... 6
+          3.2.2. Use of Huffman coding in the "deflate" format ....... 7
+          3.2.3. Details of block format ............................. 9
+          3.2.4. Non-compressed blocks (BTYPE=00) ................... 11
+          3.2.5. Compressed blocks (length and distance codes) ...... 11
+          3.2.6. Compression with fixed Huffman codes (BTYPE=01) .... 12
+          3.2.7. Compression with dynamic Huffman codes (BTYPE=10) .. 13
+      3.3. Compliance ............................................... 14
+   4. Compression algorithm details ................................. 14
+   5. References .................................................... 16
+   6. Security Considerations ....................................... 16
+   7. Source code ................................................... 16
+   8. Acknowledgements .............................................. 16
+   9. Author's Address .............................................. 17
+
+1. Introduction
+
+   1.1. Purpose
+
+      The purpose of this specification is to define a lossless
+      compressed data format that:
+          * Is independent of CPU type, operating system, file system,
+            and character set, and hence can be used for interchange;
+          * Can be produced or consumed, even for an arbitrarily long
+            sequentially presented input data stream, using only an a
+            priori bounded amount of intermediate storage, and hence
+            can be used in data communications or similar structures
+            such as Unix filters;
+          * Compresses data with efficiency comparable to the best
+            currently available general-purpose compression methods,
+            and in particular considerably better than the "compress"
+            program;
+          * Can be implemented readily in a manner not covered by
+            patents, and hence can be practiced freely;
+
+
+
+Deutsch                      Informational                      [Page 2]
+
+RFC 1951      DEFLATE Compressed Data Format Specification      May 1996
+
+
+          * Is compatible with the file format produced by the current
+            widely used gzip utility, in that conforming decompressors
+            will be able to read data produced by the existing gzip
+            compressor.
+
+      The data format defined by this specification does not attempt to:
+
+          * Allow random access to compressed data;
+          * Compress specialized data (e.g., raster graphics) as well
+            as the best currently available specialized algorithms.
+
+      A simple counting argument shows that no lossless compression
+      algorithm can compress every possible input data set.  For the
+      format defined here, the worst case expansion is 5 bytes per 32K-
+      byte block, i.e., a size increase of 0.015% for large data sets.
+      English text usually compresses by a factor of 2.5 to 3;
+      executable files usually compress somewhat less; graphical data
+      such as raster images may compress much more.
+
+   1.2. Intended audience
+
+      This specification is intended for use by implementors of software
+      to compress data into "deflate" format and/or decompress data from
+      "deflate" format.
+
+      The text of the specification assumes a basic background in
+      programming at the level of bits and other primitive data
+      representations.  Familiarity with the technique of Huffman coding
+      is helpful but not required.
+
+   1.3. Scope
+
+      The specification specifies a method for representing a sequence
+      of bytes as a (usually shorter) sequence of bits, and a method for
+      packing the latter bit sequence into bytes.
+
+   1.4. Compliance
+
+      Unless otherwise indicated below, a compliant decompressor must be
+      able to accept and decompress any data set that conforms to all
+      the specifications presented here; a compliant compressor must
+      produce data sets that conform to all the specifications presented
+      here.
+
+   1.5.  Definitions of terms and conventions used
+
+      Byte: 8 bits stored or transmitted as a unit (same as an octet).
+      For this specification, a byte is exactly 8 bits, even on machines
+
+
+
+Deutsch                      Informational                      [Page 3]
+
+RFC 1951      DEFLATE Compressed Data Format Specification      May 1996
+
+
+      which store a character on a number of bits different from eight.
+      See below, for the numbering of bits within a byte.
+
+      String: a sequence of arbitrary bytes.
+
+   1.6. Changes from previous versions
+
+      There have been no technical changes to the deflate format since
+      version 1.1 of this specification.  In version 1.2, some
+      terminology was changed.  Version 1.3 is a conversion of the
+      specification to RFC style.
+
+2. Compressed representation overview
+
+   A compressed data set consists of a series of blocks, corresponding
+   to successive blocks of input data.  The block sizes are arbitrary,
+   except that non-compressible blocks are limited to 65,535 bytes.
+
+   Each block is compressed using a combination of the LZ77 algorithm
+   and Huffman coding. The Huffman trees for each block are independent
+   of those for previous or subsequent blocks; the LZ77 algorithm may
+   use a reference to a duplicated string occurring in a previous block,
+   up to 32K input bytes before.
+
+   Each block consists of two parts: a pair of Huffman code trees that
+   describe the representation of the compressed data part, and a
+   compressed data part.  (The Huffman trees themselves are compressed
+   using Huffman encoding.)  The compressed data consists of a series of
+   elements of two types: literal bytes (of strings that have not been
+   detected as duplicated within the previous 32K input bytes), and
+   pointers to duplicated strings, where a pointer is represented as a
+   pair <length, backward distance>.  The representation used in the
+   "deflate" format limits distances to 32K bytes and lengths to 258
+   bytes, but does not limit the size of a block, except for
+   uncompressible blocks, which are limited as noted above.
+
+   Each type of value (literals, distances, and lengths) in the
+   compressed data is represented using a Huffman code, using one code
+   tree for literals and lengths and a separate code tree for distances.
+   The code trees for each block appear in a compact form just before
+   the compressed data for that block.
+
+
+
+
+
+
+
+
+
+
+Deutsch                      Informational                      [Page 4]
+
+RFC 1951      DEFLATE Compressed Data Format Specification      May 1996
+
+
+3. Detailed specification
+
+   3.1. Overall conventions In the diagrams below, a box like this:
+
+         +---+
+         |   | <-- the vertical bars might be missing
+         +---+
+
+      represents one byte; a box like this:
+
+         +==============+
+         |              |
+         +==============+
+
+      represents a variable number of bytes.
+
+      Bytes stored within a computer do not have a "bit order", since
+      they are always treated as a unit.  However, a byte considered as
+      an integer between 0 and 255 does have a most- and least-
+      significant bit, and since we write numbers with the most-
+      significant digit on the left, we also write bytes with the most-
+      significant bit on the left.  In the diagrams below, we number the
+      bits of a byte so that bit 0 is the least-significant bit, i.e.,
+      the bits are numbered:
+
+         +--------+
+         |76543210|
+         +--------+
+
+      Within a computer, a number may occupy multiple bytes.  All
+      multi-byte numbers in the format described here are stored with
+      the least-significant byte first (at the lower memory address).
+      For example, the decimal number 520 is stored as:
+
+             0        1
+         +--------+--------+
+         |00001000|00000010|
+         +--------+--------+
+          ^        ^
+          |        |
+          |        + more significant byte = 2 x 256
+          + less significant byte = 8
+
+      3.1.1. Packing into bytes
+
+         This document does not address the issue of the order in which
+         bits of a byte are transmitted on a bit-sequential medium,
+         since the final data format described here is byte- rather than
+
+
+
+Deutsch                      Informational                      [Page 5]
+
+RFC 1951      DEFLATE Compressed Data Format Specification      May 1996
+
+
+         bit-oriented.  However, we describe the compressed block format
+         in below, as a sequence of data elements of various bit
+         lengths, not a sequence of bytes.  We must therefore specify
+         how to pack these data elements into bytes to form the final
+         compressed byte sequence:
+
+             * Data elements are packed into bytes in order of
+               increasing bit number within the byte, i.e., starting
+               with the least-significant bit of the byte.
+             * Data elements other than Huffman codes are packed
+               starting with the least-significant bit of the data
+               element.
+             * Huffman codes are packed starting with the most-
+               significant bit of the code.
+
+         In other words, if one were to print out the compressed data as
+         a sequence of bytes, starting with the first byte at the
+         *right* margin and proceeding to the *left*, with the most-
+         significant bit of each byte on the left as usual, one would be
+         able to parse the result from right to left, with fixed-width
+         elements in the correct MSB-to-LSB order and Huffman codes in
+         bit-reversed order (i.e., with the first bit of the code in the
+         relative LSB position).
+
+   3.2. Compressed block format
+
+      3.2.1. Synopsis of prefix and Huffman coding
+
+         Prefix coding represents symbols from an a priori known
+         alphabet by bit sequences (codes), one code for each symbol, in
+         a manner such that different symbols may be represented by bit
+         sequences of different lengths, but a parser can always parse
+         an encoded string unambiguously symbol-by-symbol.
+
+         We define a prefix code in terms of a binary tree in which the
+         two edges descending from each non-leaf node are labeled 0 and
+         1 and in which the leaf nodes correspond one-for-one with (are
+         labeled with) the symbols of the alphabet; then the code for a
+         symbol is the sequence of 0's and 1's on the edges leading from
+         the root to the leaf labeled with that symbol.  For example:
+
+
+
+
+
+
+
+
+
+
+
+Deutsch                      Informational                      [Page 6]
+
+RFC 1951      DEFLATE Compressed Data Format Specification      May 1996
+
+
+                          /\              Symbol    Code
+                         0  1             ------    ----
+                        /    \                A      00
+                       /\     B               B       1
+                      0  1                    C     011
+                     /    \                   D     010
+                    A     /\
+                         0  1
+                        /    \
+                       D      C
+
+         A parser can decode the next symbol from an encoded input
+         stream by walking down the tree from the root, at each step
+         choosing the edge corresponding to the next input bit.
+
+         Given an alphabet with known symbol frequencies, the Huffman
+         algorithm allows the construction of an optimal prefix code
+         (one which represents strings with those symbol frequencies
+         using the fewest bits of any possible prefix codes for that
+         alphabet).  Such a code is called a Huffman code.  (See
+         reference [1] in Chapter 5, references for additional
+         information on Huffman codes.)
+
+         Note that in the "deflate" format, the Huffman codes for the
+         various alphabets must not exceed certain maximum code lengths.
+         This constraint complicates the algorithm for computing code
+         lengths from symbol frequencies.  Again, see Chapter 5,
+         references for details.
+
+      3.2.2. Use of Huffman coding in the "deflate" format
+
+         The Huffman codes used for each alphabet in the "deflate"
+         format have two additional rules:
+
+             * All codes of a given bit length have lexicographically
+               consecutive values, in the same order as the symbols
+               they represent;
+
+             * Shorter codes lexicographically precede longer codes.
+
+
+
+
+
+
+
+
+
+
+
+
+Deutsch                      Informational                      [Page 7]
+
+RFC 1951      DEFLATE Compressed Data Format Specification      May 1996
+
+
+         We could recode the example above to follow this rule as
+         follows, assuming that the order of the alphabet is ABCD:
+
+            Symbol  Code
+            ------  ----
+            A       10
+            B       0
+            C       110
+            D       111
+
+         I.e., 0 precedes 10 which precedes 11x, and 110 and 111 are
+         lexicographically consecutive.
+
+         Given this rule, we can define the Huffman code for an alphabet
+         just by giving the bit lengths of the codes for each symbol of
+         the alphabet in order; this is sufficient to determine the
+         actual codes.  In our example, the code is completely defined
+         by the sequence of bit lengths (2, 1, 3, 3).  The following
+         algorithm generates the codes as integers, intended to be read
+         from most- to least-significant bit.  The code lengths are
+         initially in tree[I].Len; the codes are produced in
+         tree[I].Code.
+
+         1)  Count the number of codes for each code length.  Let
+             bl_count[N] be the number of codes of length N, N >= 1.
+
+         2)  Find the numerical value of the smallest code for each
+             code length:
+
+                code = 0;
+                bl_count[0] = 0;
+                for (bits = 1; bits <= MAX_BITS; bits++) {
+                    code = (code + bl_count[bits-1]) << 1;
+                    next_code[bits] = code;
+                }
+
+         3)  Assign numerical values to all codes, using consecutive
+             values for all codes of the same length with the base
+             values determined at step 2. Codes that are never used
+             (which have a bit length of zero) must not be assigned a
+             value.
+
+                for (n = 0;  n <= max_code; n++) {
+                    len = tree[n].Len;
+                    if (len != 0) {
+                        tree[n].Code = next_code[len];
+                        next_code[len]++;
+                    }
+
+
+
+Deutsch                      Informational                      [Page 8]
+
+RFC 1951      DEFLATE Compressed Data Format Specification      May 1996
+
+
+                }
+
+         Example:
+
+         Consider the alphabet ABCDEFGH, with bit lengths (3, 3, 3, 3,
+         3, 2, 4, 4).  After step 1, we have:
+
+            N      bl_count[N]
+            -      -----------
+            2      1
+            3      5
+            4      2
+
+         Step 2 computes the following next_code values:
+
+            N      next_code[N]
+            -      ------------
+            1      0
+            2      0
+            3      2
+            4      14
+
+         Step 3 produces the following code values:
+
+            Symbol Length   Code
+            ------ ------   ----
+            A       3        010
+            B       3        011
+            C       3        100
+            D       3        101
+            E       3        110
+            F       2         00
+            G       4       1110
+            H       4       1111
+
+      3.2.3. Details of block format
+
+         Each block of compressed data begins with 3 header bits
+         containing the following data:
+
+            first bit       BFINAL
+            next 2 bits     BTYPE
+
+         Note that the header bits do not necessarily begin on a byte
+         boundary, since a block does not necessarily occupy an integral
+         number of bytes.
+
+
+
+
+
+Deutsch                      Informational                      [Page 9]
+
+RFC 1951      DEFLATE Compressed Data Format Specification      May 1996
+
+
+         BFINAL is set if and only if this is the last block of the data
+         set.
+
+         BTYPE specifies how the data are compressed, as follows:
+
+            00 - no compression
+            01 - compressed with fixed Huffman codes
+            10 - compressed with dynamic Huffman codes
+            11 - reserved (error)
+
+         The only difference between the two compressed cases is how the
+         Huffman codes for the literal/length and distance alphabets are
+         defined.
+
+         In all cases, the decoding algorithm for the actual data is as
+         follows:
+
+            do
+               read block header from input stream.
+               if stored with no compression
+                  skip any remaining bits in current partially
+                     processed byte
+                  read LEN and NLEN (see next section)
+                  copy LEN bytes of data to output
+               otherwise
+                  if compressed with dynamic Huffman codes
+                     read representation of code trees (see
+                        subsection below)
+                  loop (until end of block code recognized)
+                     decode literal/length value from input stream
+                     if value < 256
+                        copy value (literal byte) to output stream
+                     otherwise
+                        if value = end of block (256)
+                           break from loop
+                        otherwise (value = 257..285)
+                           decode distance from input stream
+
+                           move backwards distance bytes in the output
+                           stream, and copy length bytes from this
+                           position to the output stream.
+                  end loop
+            while not last block
+
+         Note that a duplicated string reference may refer to a string
+         in a previous block; i.e., the backward distance may cross one
+         or more block boundaries.  However a distance cannot refer past
+         the beginning of the output stream.  (An application using a
+
+
+
+Deutsch                      Informational                     [Page 10]
+
+RFC 1951      DEFLATE Compressed Data Format Specification      May 1996
+
+
+         preset dictionary might discard part of the output stream; a
+         distance can refer to that part of the output stream anyway)
+         Note also that the referenced string may overlap the current
+         position; for example, if the last 2 bytes decoded have values
+         X and Y, a string reference with <length = 5, distance = 2>
+         adds X,Y,X,Y,X to the output stream.
+
+         We now specify each compression method in turn.
+
+      3.2.4. Non-compressed blocks (BTYPE=00)
+
+         Any bits of input up to the next byte boundary are ignored.
+         The rest of the block consists of the following information:
+
+              0   1   2   3   4...
+            +---+---+---+---+================================+
+            |  LEN  | NLEN  |... LEN bytes of literal data...|
+            +---+---+---+---+================================+
+
+         LEN is the number of data bytes in the block.  NLEN is the
+         one's complement of LEN.
+
+      3.2.5. Compressed blocks (length and distance codes)
+
+         As noted above, encoded data blocks in the "deflate" format
+         consist of sequences of symbols drawn from three conceptually
+         distinct alphabets: either literal bytes, from the alphabet of
+         byte values (0..255), or <length, backward distance> pairs,
+         where the length is drawn from (3..258) and the distance is
+         drawn from (1..32,768).  In fact, the literal and length
+         alphabets are merged into a single alphabet (0..285), where
+         values 0..255 represent literal bytes, the value 256 indicates
+         end-of-block, and values 257..285 represent length codes
+         (possibly in conjunction with extra bits following the symbol
+         code) as follows:
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Deutsch                      Informational                     [Page 11]
+
+RFC 1951      DEFLATE Compressed Data Format Specification      May 1996
+
+
+                 Extra               Extra               Extra
+            Code Bits Length(s) Code Bits Lengths   Code Bits Length(s)
+            ---- ---- ------     ---- ---- -------   ---- ---- -------
+             257   0     3       267   1   15,16     277   4   67-82
+             258   0     4       268   1   17,18     278   4   83-98
+             259   0     5       269   2   19-22     279   4   99-114
+             260   0     6       270   2   23-26     280   4  115-130
+             261   0     7       271   2   27-30     281   5  131-162
+             262   0     8       272   2   31-34     282   5  163-194
+             263   0     9       273   3   35-42     283   5  195-226
+             264   0    10       274   3   43-50     284   5  227-257
+             265   1  11,12      275   3   51-58     285   0    258
+             266   1  13,14      276   3   59-66
+
+         The extra bits should be interpreted as a machine integer
+         stored with the most-significant bit first, e.g., bits 1110
+         represent the value 14.
+
+                  Extra           Extra               Extra
+             Code Bits Dist  Code Bits   Dist     Code Bits Distance
+             ---- ---- ----  ---- ----  ------    ---- ---- --------
+               0   0    1     10   4     33-48    20    9   1025-1536
+               1   0    2     11   4     49-64    21    9   1537-2048
+               2   0    3     12   5     65-96    22   10   2049-3072
+               3   0    4     13   5     97-128   23   10   3073-4096
+               4   1   5,6    14   6    129-192   24   11   4097-6144
+               5   1   7,8    15   6    193-256   25   11   6145-8192
+               6   2   9-12   16   7    257-384   26   12  8193-12288
+               7   2  13-16   17   7    385-512   27   12 12289-16384
+               8   3  17-24   18   8    513-768   28   13 16385-24576
+               9   3  25-32   19   8   769-1024   29   13 24577-32768
+
+      3.2.6. Compression with fixed Huffman codes (BTYPE=01)
+
+         The Huffman codes for the two alphabets are fixed, and are not
+         represented explicitly in the data.  The Huffman code lengths
+         for the literal/length alphabet are:
+
+                   Lit Value    Bits        Codes
+                   ---------    ----        -----
+                     0 - 143     8          00110000 through
+                                            10111111
+                   144 - 255     9          110010000 through
+                                            111111111
+                   256 - 279     7          0000000 through
+                                            0010111
+                   280 - 287     8          11000000 through
+                                            11000111
+
+
+
+Deutsch                      Informational                     [Page 12]
+
+RFC 1951      DEFLATE Compressed Data Format Specification      May 1996
+
+
+         The code lengths are sufficient to generate the actual codes,
+         as described above; we show the codes in the table for added
+         clarity.  Literal/length values 286-287 will never actually
+         occur in the compressed data, but participate in the code
+         construction.
+
+         Distance codes 0-31 are represented by (fixed-length) 5-bit
+         codes, with possible additional bits as shown in the table
+         shown in Paragraph 3.2.5, above.  Note that distance codes 30-
+         31 will never actually occur in the compressed data.
+
+      3.2.7. Compression with dynamic Huffman codes (BTYPE=10)
+
+         The Huffman codes for the two alphabets appear in the block
+         immediately after the header bits and before the actual
+         compressed data, first the literal/length code and then the
+         distance code.  Each code is defined by a sequence of code
+         lengths, as discussed in Paragraph 3.2.2, above.  For even
+         greater compactness, the code length sequences themselves are
+         compressed using a Huffman code.  The alphabet for code lengths
+         is as follows:
+
+               0 - 15: Represent code lengths of 0 - 15
+                   16: Copy the previous code length 3 - 6 times.
+                       The next 2 bits indicate repeat length
+                             (0 = 3, ... , 3 = 6)
+                          Example:  Codes 8, 16 (+2 bits 11),
+                                    16 (+2 bits 10) will expand to
+                                    12 code lengths of 8 (1 + 6 + 5)
+                   17: Repeat a code length of 0 for 3 - 10 times.
+                       (3 bits of length)
+                   18: Repeat a code length of 0 for 11 - 138 times
+                       (7 bits of length)
+
+         A code length of 0 indicates that the corresponding symbol in
+         the literal/length or distance alphabet will not occur in the
+         block, and should not participate in the Huffman code
+         construction algorithm given earlier.  If only one distance
+         code is used, it is encoded using one bit, not zero bits; in
+         this case there is a single code length of one, with one unused
+         code.  One distance code of zero bits means that there are no
+         distance codes used at all (the data is all literals).
+
+         We can now define the format of the block:
+
+               5 Bits: HLIT, # of Literal/Length codes - 257 (257 - 286)
+               5 Bits: HDIST, # of Distance codes - 1        (1 - 32)
+               4 Bits: HCLEN, # of Code Length codes - 4     (4 - 19)
+
+
+
+Deutsch                      Informational                     [Page 13]
+
+RFC 1951      DEFLATE Compressed Data Format Specification      May 1996
+
+
+               (HCLEN + 4) x 3 bits: code lengths for the code length
+                  alphabet given just above, in the order: 16, 17, 18,
+                  0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15
+
+                  These code lengths are interpreted as 3-bit integers
+                  (0-7); as above, a code length of 0 means the
+                  corresponding symbol (literal/length or distance code
+                  length) is not used.
+
+               HLIT + 257 code lengths for the literal/length alphabet,
+                  encoded using the code length Huffman code
+
+               HDIST + 1 code lengths for the distance alphabet,
+                  encoded using the code length Huffman code
+
+               The actual compressed data of the block,
+                  encoded using the literal/length and distance Huffman
+                  codes
+
+               The literal/length symbol 256 (end of data),
+                  encoded using the literal/length Huffman code
+
+         The code length repeat codes can cross from HLIT + 257 to the
+         HDIST + 1 code lengths.  In other words, all code lengths form
+         a single sequence of HLIT + HDIST + 258 values.
+
+   3.3. Compliance
+
+      A compressor may limit further the ranges of values specified in
+      the previous section and still be compliant; for example, it may
+      limit the range of backward pointers to some value smaller than
+      32K.  Similarly, a compressor may limit the size of blocks so that
+      a compressible block fits in memory.
+
+      A compliant decompressor must accept the full range of possible
+      values defined in the previous section, and must accept blocks of
+      arbitrary size.
+
+4. Compression algorithm details
+
+   While it is the intent of this document to define the "deflate"
+   compressed data format without reference to any particular
+   compression algorithm, the format is related to the compressed
+   formats produced by LZ77 (Lempel-Ziv 1977, see reference [2] below);
+   since many variations of LZ77 are patented, it is strongly
+   recommended that the implementor of a compressor follow the general
+   algorithm presented here, which is known not to be patented per se.
+   The material in this section is not part of the definition of the
+
+
+
+Deutsch                      Informational                     [Page 14]
+
+RFC 1951      DEFLATE Compressed Data Format Specification      May 1996
+
+
+   specification per se, and a compressor need not follow it in order to
+   be compliant.
+
+   The compressor terminates a block when it determines that starting a
+   new block with fresh trees would be useful, or when the block size
+   fills up the compressor's block buffer.
+
+   The compressor uses a chained hash table to find duplicated strings,
+   using a hash function that operates on 3-byte sequences.  At any
+   given point during compression, let XYZ be the next 3 input bytes to
+   be examined (not necessarily all different, of course).  First, the
+   compressor examines the hash chain for XYZ.  If the chain is empty,
+   the compressor simply writes out X as a literal byte and advances one
+   byte in the input.  If the hash chain is not empty, indicating that
+   the sequence XYZ (or, if we are unlucky, some other 3 bytes with the
+   same hash function value) has occurred recently, the compressor
+   compares all strings on the XYZ hash chain with the actual input data
+   sequence starting at the current point, and selects the longest
+   match.
+
+   The compressor searches the hash chains starting with the most recent
+   strings, to favor small distances and thus take advantage of the
+   Huffman encoding.  The hash chains are singly linked. There are no
+   deletions from the hash chains; the algorithm simply discards matches
+   that are too old.  To avoid a worst-case situation, very long hash
+   chains are arbitrarily truncated at a certain length, determined by a
+   run-time parameter.
+
+   To improve overall compression, the compressor optionally defers the
+   selection of matches ("lazy matching"): after a match of length N has
+   been found, the compressor searches for a longer match starting at
+   the next input byte.  If it finds a longer match, it truncates the
+   previous match to a length of one (thus producing a single literal
+   byte) and then emits the longer match.  Otherwise, it emits the
+   original match, and, as described above, advances N bytes before
+   continuing.
+
+   Run-time parameters also control this "lazy match" procedure.  If
+   compression ratio is most important, the compressor attempts a
+   complete second search regardless of the length of the first match.
+   In the normal case, if the current match is "long enough", the
+   compressor reduces the search for a longer match, thus speeding up
+   the process.  If speed is most important, the compressor inserts new
+   strings in the hash table only when no match was found, or when the
+   match is not "too long".  This degrades the compression ratio but
+   saves time since there are both fewer insertions and fewer searches.
+
+
+
+
+
+Deutsch                      Informational                     [Page 15]
+
+RFC 1951      DEFLATE Compressed Data Format Specification      May 1996
+
+
+5. References
+
+   [1] Huffman, D. A., "A Method for the Construction of Minimum
+       Redundancy Codes", Proceedings of the Institute of Radio
+       Engineers, September 1952, Volume 40, Number 9, pp. 1098-1101.
+
+   [2] Ziv J., Lempel A., "A Universal Algorithm for Sequential Data
+       Compression", IEEE Transactions on Information Theory, Vol. 23,
+       No. 3, pp. 337-343.
+
+   [3] Gailly, J.-L., and Adler, M., ZLIB documentation and sources,
+       available in ftp://ftp.uu.net/pub/archiving/zip/doc/
+
+   [4] Gailly, J.-L., and Adler, M., GZIP documentation and sources,
+       available as gzip-*.tar in ftp://prep.ai.mit.edu/pub/gnu/
+
+   [5] Schwartz, E. S., and Kallick, B. "Generating a canonical prefix
+       encoding." Comm. ACM, 7,3 (Mar. 1964), pp. 166-169.
+
+   [6] Hirschberg and Lelewer, "Efficient decoding of prefix codes,"
+       Comm. ACM, 33,4, April 1990, pp. 449-459.
+
+6. Security Considerations
+
+   Any data compression method involves the reduction of redundancy in
+   the data.  Consequently, any corruption of the data is likely to have
+   severe effects and be difficult to correct.  Uncompressed text, on
+   the other hand, will probably still be readable despite the presence
+   of some corrupted bytes.
+
+   It is recommended that systems using this data format provide some
+   means of validating the integrity of the compressed data.  See
+   reference [3], for example.
+
+7. Source code
+
+   Source code for a C language implementation of a "deflate" compliant
+   compressor and decompressor is available within the zlib package at
+   ftp://ftp.uu.net/pub/archiving/zip/zlib/.
+
+8. Acknowledgements
+
+   Trademarks cited in this document are the property of their
+   respective owners.
+
+   Phil Katz designed the deflate format.  Jean-Loup Gailly and Mark
+   Adler wrote the related software described in this specification.
+   Glenn Randers-Pehrson converted this document to RFC and HTML format.
+
+
+
+Deutsch                      Informational                     [Page 16]
+
+RFC 1951      DEFLATE Compressed Data Format Specification      May 1996
+
+
+9. Author's Address
+
+   L. Peter Deutsch
+   Aladdin Enterprises
+   203 Santa Margarita Ave.
+   Menlo Park, CA 94025
+
+   Phone: (415) 322-0103 (AM only)
+   FAX:   (415) 322-1734
+   EMail: <ghost@aladdin.com>
+
+   Questions about the technical content of this specification can be
+   sent by email to:
+
+   Jean-Loup Gailly <gzip@prep.ai.mit.edu> and
+   Mark Adler <madler@alumni.caltech.edu>
+
+   Editorial comments on this specification can be sent by email to:
+
+   L. Peter Deutsch <ghost@aladdin.com> and
+   Glenn Randers-Pehrson <randeg@alumni.rpi.edu>
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Deutsch                      Informational                     [Page 17]
+
diff --git a/compat/zlib/doc/rfc1952.txt b/compat/zlib/doc/rfc1952.txt
new file mode 100644
index 0000000..a8e51b4
--- /dev/null
+++ b/compat/zlib/doc/rfc1952.txt
@@ -0,0 +1,675 @@
+
+
+
+
+
+
+Network Working Group                                         P. Deutsch
+Request for Comments: 1952                           Aladdin Enterprises
+Category: Informational                                         May 1996
+
+
+               GZIP file format specification version 4.3
+
+Status of This Memo
+
+   This memo provides information for the Internet community.  This memo
+   does not specify an Internet standard of any kind.  Distribution of
+   this memo is unlimited.
+
+IESG Note:
+
+   The IESG takes no position on the validity of any Intellectual
+   Property Rights statements contained in this document.
+
+Notices
+
+   Copyright (c) 1996 L. Peter Deutsch
+
+   Permission is granted to copy and distribute this document for any
+   purpose and without charge, including translations into other
+   languages and incorporation into compilations, provided that the
+   copyright notice and this notice are preserved, and that any
+   substantive changes or deletions from the original are clearly
+   marked.
+
+   A pointer to the latest version of this and related documentation in
+   HTML format can be found at the URL
+   <ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html>.
+
+Abstract
+
+   This specification defines a lossless compressed data format that is
+   compatible with the widely used GZIP utility.  The format includes a
+   cyclic redundancy check value for detecting data corruption.  The
+   format presently uses the DEFLATE method of compression but can be
+   easily extended to use other compression methods.  The format can be
+   implemented readily in a manner not covered by patents.
+
+
+
+
+
+
+
+
+
+
+Deutsch                      Informational                      [Page 1]
+
+RFC 1952             GZIP File Format Specification             May 1996
+
+
+Table of Contents
+
+   1. Introduction ................................................... 2
+      1.1. Purpose ................................................... 2
+      1.2. Intended audience ......................................... 3
+      1.3. Scope ..................................................... 3
+      1.4. Compliance ................................................ 3
+      1.5. Definitions of terms and conventions used ................. 3
+      1.6. Changes from previous versions ............................ 3
+   2. Detailed specification ......................................... 4
+      2.1. Overall conventions ....................................... 4
+      2.2. File format ............................................... 5
+      2.3. Member format ............................................. 5
+          2.3.1. Member header and trailer ........................... 6
+              2.3.1.1. Extra field ................................... 8
+              2.3.1.2. Compliance .................................... 9
+      3. References .................................................. 9
+      4. Security Considerations .................................... 10
+      5. Acknowledgements ........................................... 10
+      6. Author's Address ........................................... 10
+      7. Appendix: Jean-Loup Gailly's gzip utility .................. 11
+      8. Appendix: Sample CRC Code .................................. 11
+
+1. Introduction
+
+   1.1. Purpose
+
+      The purpose of this specification is to define a lossless
+      compressed data format that:
+
+          * Is independent of CPU type, operating system, file system,
+            and character set, and hence can be used for interchange;
+          * Can compress or decompress a data stream (as opposed to a
+            randomly accessible file) to produce another data stream,
+            using only an a priori bounded amount of intermediate
+            storage, and hence can be used in data communications or
+            similar structures such as Unix filters;
+          * Compresses data with efficiency comparable to the best
+            currently available general-purpose compression methods,
+            and in particular considerably better than the "compress"
+            program;
+          * Can be implemented readily in a manner not covered by
+            patents, and hence can be practiced freely;
+          * Is compatible with the file format produced by the current
+            widely used gzip utility, in that conforming decompressors
+            will be able to read data produced by the existing gzip
+            compressor.
+
+
+
+
+Deutsch                      Informational                      [Page 2]
+
+RFC 1952             GZIP File Format Specification             May 1996
+
+
+      The data format defined by this specification does not attempt to:
+
+          * Provide random access to compressed data;
+          * Compress specialized data (e.g., raster graphics) as well as
+            the best currently available specialized algorithms.
+
+   1.2. Intended audience
+
+      This specification is intended for use by implementors of software
+      to compress data into gzip format and/or decompress data from gzip
+      format.
+
+      The text of the specification assumes a basic background in
+      programming at the level of bits and other primitive data
+      representations.
+
+   1.3. Scope
+
+      The specification specifies a compression method and a file format
+      (the latter assuming only that a file can store a sequence of
+      arbitrary bytes).  It does not specify any particular interface to
+      a file system or anything about character sets or encodings
+      (except for file names and comments, which are optional).
+
+   1.4. Compliance
+
+      Unless otherwise indicated below, a compliant decompressor must be
+      able to accept and decompress any file that conforms to all the
+      specifications presented here; a compliant compressor must produce
+      files that conform to all the specifications presented here.  The
+      material in the appendices is not part of the specification per se
+      and is not relevant to compliance.
+
+   1.5. Definitions of terms and conventions used
+
+      byte: 8 bits stored or transmitted as a unit (same as an octet).
+      (For this specification, a byte is exactly 8 bits, even on
+      machines which store a character on a number of bits different
+      from 8.)  See below for the numbering of bits within a byte.
+
+   1.6. Changes from previous versions
+
+      There have been no technical changes to the gzip format since
+      version 4.1 of this specification.  In version 4.2, some
+      terminology was changed, and the sample CRC code was rewritten for
+      clarity and to eliminate the requirement for the caller to do pre-
+      and post-conditioning.  Version 4.3 is a conversion of the
+      specification to RFC style.
+
+
+
+Deutsch                      Informational                      [Page 3]
+
+RFC 1952             GZIP File Format Specification             May 1996
+
+
+2. Detailed specification
+
+   2.1. Overall conventions
+
+      In the diagrams below, a box like this:
+
+         +---+
+         |   | <-- the vertical bars might be missing
+         +---+
+
+      represents one byte; a box like this:
+
+         +==============+
+         |              |
+         +==============+
+
+      represents a variable number of bytes.
+
+      Bytes stored within a computer do not have a "bit order", since
+      they are always treated as a unit.  However, a byte considered as
+      an integer between 0 and 255 does have a most- and least-
+      significant bit, and since we write numbers with the most-
+      significant digit on the left, we also write bytes with the most-
+      significant bit on the left.  In the diagrams below, we number the
+      bits of a byte so that bit 0 is the least-significant bit, i.e.,
+      the bits are numbered:
+
+         +--------+
+         |76543210|
+         +--------+
+
+      This document does not address the issue of the order in which
+      bits of a byte are transmitted on a bit-sequential medium, since
+      the data format described here is byte- rather than bit-oriented.
+
+      Within a computer, a number may occupy multiple bytes.  All
+      multi-byte numbers in the format described here are stored with
+      the least-significant byte first (at the lower memory address).
+      For example, the decimal number 520 is stored as:
+
+             0        1
+         +--------+--------+
+         |00001000|00000010|
+         +--------+--------+
+          ^        ^
+          |        |
+          |        + more significant byte = 2 x 256
+          + less significant byte = 8
+
+
+
+Deutsch                      Informational                      [Page 4]
+
+RFC 1952             GZIP File Format Specification             May 1996
+
+
+   2.2. File format
+
+      A gzip file consists of a series of "members" (compressed data
+      sets).  The format of each member is specified in the following
+      section.  The members simply appear one after another in the file,
+      with no additional information before, between, or after them.
+
+   2.3. Member format
+
+      Each member has the following structure:
+
+         +---+---+---+---+---+---+---+---+---+---+
+         |ID1|ID2|CM |FLG|     MTIME     |XFL|OS | (more-->)
+         +---+---+---+---+---+---+---+---+---+---+
+
+      (if FLG.FEXTRA set)
+
+         +---+---+=================================+
+         | XLEN  |...XLEN bytes of "extra field"...| (more-->)
+         +---+---+=================================+
+
+      (if FLG.FNAME set)
+
+         +=========================================+
+         |...original file name, zero-terminated...| (more-->)
+         +=========================================+
+
+      (if FLG.FCOMMENT set)
+
+         +===================================+
+         |...file comment, zero-terminated...| (more-->)
+         +===================================+
+
+      (if FLG.FHCRC set)
+
+         +---+---+
+         | CRC16 |
+         +---+---+
+
+         +=======================+
+         |...compressed blocks...| (more-->)
+         +=======================+
+
+           0   1   2   3   4   5   6   7
+         +---+---+---+---+---+---+---+---+
+         |     CRC32     |     ISIZE     |
+         +---+---+---+---+---+---+---+---+
+
+
+
+
+Deutsch                      Informational                      [Page 5]
+
+RFC 1952             GZIP File Format Specification             May 1996
+
+
+      2.3.1. Member header and trailer
+
+         ID1 (IDentification 1)
+         ID2 (IDentification 2)
+            These have the fixed values ID1 = 31 (0x1f, \037), ID2 = 139
+            (0x8b, \213), to identify the file as being in gzip format.
+
+         CM (Compression Method)
+            This identifies the compression method used in the file.  CM
+            = 0-7 are reserved.  CM = 8 denotes the "deflate"
+            compression method, which is the one customarily used by
+            gzip and which is documented elsewhere.
+
+         FLG (FLaGs)
+            This flag byte is divided into individual bits as follows:
+
+               bit 0   FTEXT
+               bit 1   FHCRC
+               bit 2   FEXTRA
+               bit 3   FNAME
+               bit 4   FCOMMENT
+               bit 5   reserved
+               bit 6   reserved
+               bit 7   reserved
+
+            If FTEXT is set, the file is probably ASCII text.  This is
+            an optional indication, which the compressor may set by
+            checking a small amount of the input data to see whether any
+            non-ASCII characters are present.  In case of doubt, FTEXT
+            is cleared, indicating binary data. For systems which have
+            different file formats for ascii text and binary data, the
+            decompressor can use FTEXT to choose the appropriate format.
+            We deliberately do not specify the algorithm used to set
+            this bit, since a compressor always has the option of
+            leaving it cleared and a decompressor always has the option
+            of ignoring it and letting some other program handle issues
+            of data conversion.
+
+            If FHCRC is set, a CRC16 for the gzip header is present,
+            immediately before the compressed data. The CRC16 consists
+            of the two least significant bytes of the CRC32 for all
+            bytes of the gzip header up to and not including the CRC16.
+            [The FHCRC bit was never set by versions of gzip up to
+            1.2.4, even though it was documented with a different
+            meaning in gzip 1.2.4.]
+
+            If FEXTRA is set, optional extra fields are present, as
+            described in a following section.
+
+
+
+Deutsch                      Informational                      [Page 6]
+
+RFC 1952             GZIP File Format Specification             May 1996
+
+
+            If FNAME is set, an original file name is present,
+            terminated by a zero byte.  The name must consist of ISO
+            8859-1 (LATIN-1) characters; on operating systems using
+            EBCDIC or any other character set for file names, the name
+            must be translated to the ISO LATIN-1 character set.  This
+            is the original name of the file being compressed, with any
+            directory components removed, and, if the file being
+            compressed is on a file system with case insensitive names,
+            forced to lower case. There is no original file name if the
+            data was compressed from a source other than a named file;
+            for example, if the source was stdin on a Unix system, there
+            is no file name.
+
+            If FCOMMENT is set, a zero-terminated file comment is
+            present.  This comment is not interpreted; it is only
+            intended for human consumption.  The comment must consist of
+            ISO 8859-1 (LATIN-1) characters.  Line breaks should be
+            denoted by a single line feed character (10 decimal).
+
+            Reserved FLG bits must be zero.
+
+         MTIME (Modification TIME)
+            This gives the most recent modification time of the original
+            file being compressed.  The time is in Unix format, i.e.,
+            seconds since 00:00:00 GMT, Jan.  1, 1970.  (Note that this
+            may cause problems for MS-DOS and other systems that use
+            local rather than Universal time.)  If the compressed data
+            did not come from a file, MTIME is set to the time at which
+            compression started.  MTIME = 0 means no time stamp is
+            available.
+
+         XFL (eXtra FLags)
+            These flags are available for use by specific compression
+            methods.  The "deflate" method (CM = 8) sets these flags as
+            follows:
+
+               XFL = 2 - compressor used maximum compression,
+                         slowest algorithm
+               XFL = 4 - compressor used fastest algorithm
+
+         OS (Operating System)
+            This identifies the type of file system on which compression
+            took place.  This may be useful in determining end-of-line
+            convention for text files.  The currently defined values are
+            as follows:
+
+
+
+
+
+
+Deutsch                      Informational                      [Page 7]
+
+RFC 1952             GZIP File Format Specification             May 1996
+
+
+                 0 - FAT filesystem (MS-DOS, OS/2, NT/Win32)
+                 1 - Amiga
+                 2 - VMS (or OpenVMS)
+                 3 - Unix
+                 4 - VM/CMS
+                 5 - Atari TOS
+                 6 - HPFS filesystem (OS/2, NT)
+                 7 - Macintosh
+                 8 - Z-System
+                 9 - CP/M
+                10 - TOPS-20
+                11 - NTFS filesystem (NT)
+                12 - QDOS
+                13 - Acorn RISCOS
+               255 - unknown
+
+         XLEN (eXtra LENgth)
+            If FLG.FEXTRA is set, this gives the length of the optional
+            extra field.  See below for details.
+
+         CRC32 (CRC-32)
+            This contains a Cyclic Redundancy Check value of the
+            uncompressed data computed according to CRC-32 algorithm
+            used in the ISO 3309 standard and in section 8.1.1.6.2 of
+            ITU-T recommendation V.42.  (See http://www.iso.ch for
+            ordering ISO documents. See gopher://info.itu.ch for an
+            online version of ITU-T V.42.)
+
+         ISIZE (Input SIZE)
+            This contains the size of the original (uncompressed) input
+            data modulo 2^32.
+
+      2.3.1.1. Extra field
+
+         If the FLG.FEXTRA bit is set, an "extra field" is present in
+         the header, with total length XLEN bytes.  It consists of a
+         series of subfields, each of the form:
+
+            +---+---+---+---+==================================+
+            |SI1|SI2|  LEN  |... LEN bytes of subfield data ...|
+            +---+---+---+---+==================================+
+
+         SI1 and SI2 provide a subfield ID, typically two ASCII letters
+         with some mnemonic value.  Jean-Loup Gailly
+         <gzip@prep.ai.mit.edu> is maintaining a registry of subfield
+         IDs; please send him any subfield ID you wish to use.  Subfield
+         IDs with SI2 = 0 are reserved for future use.  The following
+         IDs are currently defined:
+
+
+
+Deutsch                      Informational                      [Page 8]
+
+RFC 1952             GZIP File Format Specification             May 1996
+
+
+            SI1         SI2         Data
+            ----------  ----------  ----
+            0x41 ('A')  0x70 ('P')  Apollo file type information
+
+         LEN gives the length of the subfield data, excluding the 4
+         initial bytes.
+
+      2.3.1.2. Compliance
+
+         A compliant compressor must produce files with correct ID1,
+         ID2, CM, CRC32, and ISIZE, but may set all the other fields in
+         the fixed-length part of the header to default values (255 for
+         OS, 0 for all others).  The compressor must set all reserved
+         bits to zero.
+
+         A compliant decompressor must check ID1, ID2, and CM, and
+         provide an error indication if any of these have incorrect
+         values.  It must examine FEXTRA/XLEN, FNAME, FCOMMENT and FHCRC
+         at least so it can skip over the optional fields if they are
+         present.  It need not examine any other part of the header or
+         trailer; in particular, a decompressor may ignore FTEXT and OS
+         and always produce binary output, and still be compliant.  A
+         compliant decompressor must give an error indication if any
+         reserved bit is non-zero, since such a bit could indicate the
+         presence of a new field that would cause subsequent data to be
+         interpreted incorrectly.
+
+3. References
+
+   [1] "Information Processing - 8-bit single-byte coded graphic
+       character sets - Part 1: Latin alphabet No.1" (ISO 8859-1:1987).
+       The ISO 8859-1 (Latin-1) character set is a superset of 7-bit
+       ASCII. Files defining this character set are available as
+       iso_8859-1.* in ftp://ftp.uu.net/graphics/png/documents/
+
+   [2] ISO 3309
+
+   [3] ITU-T recommendation V.42
+
+   [4] Deutsch, L.P.,"DEFLATE Compressed Data Format Specification",
+       available in ftp://ftp.uu.net/pub/archiving/zip/doc/
+
+   [5] Gailly, J.-L., GZIP documentation, available as gzip-*.tar in
+       ftp://prep.ai.mit.edu/pub/gnu/
+
+   [6] Sarwate, D.V., "Computation of Cyclic Redundancy Checks via Table
+       Look-Up", Communications of the ACM, 31(8), pp.1008-1013.
+
+
+
+
+Deutsch                      Informational                      [Page 9]
+
+RFC 1952             GZIP File Format Specification             May 1996
+
+
+   [7] Schwaderer, W.D., "CRC Calculation", April 85 PC Tech Journal,
+       pp.118-133.
+
+   [8] ftp://ftp.adelaide.edu.au/pub/rocksoft/papers/crc_v3.txt,
+       describing the CRC concept.
+
+4. Security Considerations
+
+   Any data compression method involves the reduction of redundancy in
+   the data.  Consequently, any corruption of the data is likely to have
+   severe effects and be difficult to correct.  Uncompressed text, on
+   the other hand, will probably still be readable despite the presence
+   of some corrupted bytes.
+
+   It is recommended that systems using this data format provide some
+   means of validating the integrity of the compressed data, such as by
+   setting and checking the CRC-32 check value.
+
+5. Acknowledgements
+
+   Trademarks cited in this document are the property of their
+   respective owners.
+
+   Jean-Loup Gailly designed the gzip format and wrote, with Mark Adler,
+   the related software described in this specification.  Glenn
+   Randers-Pehrson converted this document to RFC and HTML format.
+
+6. Author's Address
+
+   L. Peter Deutsch
+   Aladdin Enterprises
+   203 Santa Margarita Ave.
+   Menlo Park, CA 94025
+
+   Phone: (415) 322-0103 (AM only)
+   FAX:   (415) 322-1734
+   EMail: <ghost@aladdin.com>
+
+   Questions about the technical content of this specification can be
+   sent by email to:
+
+   Jean-Loup Gailly <gzip@prep.ai.mit.edu> and
+   Mark Adler <madler@alumni.caltech.edu>
+
+   Editorial comments on this specification can be sent by email to:
+
+   L. Peter Deutsch <ghost@aladdin.com> and
+   Glenn Randers-Pehrson <randeg@alumni.rpi.edu>
+
+
+
+Deutsch                      Informational                     [Page 10]
+
+RFC 1952             GZIP File Format Specification             May 1996
+
+
+7. Appendix: Jean-Loup Gailly's gzip utility
+
+   The most widely used implementation of gzip compression, and the
+   original documentation on which this specification is based, were
+   created by Jean-Loup Gailly <gzip@prep.ai.mit.edu>.  Since this
+   implementation is a de facto standard, we mention some more of its
+   features here.  Again, the material in this section is not part of
+   the specification per se, and implementations need not follow it to
+   be compliant.
+
+   When compressing or decompressing a file, gzip preserves the
+   protection, ownership, and modification time attributes on the local
+   file system, since there is no provision for representing protection
+   attributes in the gzip file format itself.  Since the file format
+   includes a modification time, the gzip decompressor provides a
+   command line switch that assigns the modification time from the file,
+   rather than the local modification time of the compressed input, to
+   the decompressed output.
+
+8. Appendix: Sample CRC Code
+
+   The following sample code represents a practical implementation of
+   the CRC (Cyclic Redundancy Check). (See also ISO 3309 and ITU-T V.42
+   for a formal specification.)
+
+   The sample code is in the ANSI C programming language. Non C users
+   may find it easier to read with these hints:
+
+      &      Bitwise AND operator.
+      ^      Bitwise exclusive-OR operator.
+      >>     Bitwise right shift operator. When applied to an
+             unsigned quantity, as here, right shift inserts zero
+             bit(s) at the left.
+      !      Logical NOT operator.
+      ++     "n++" increments the variable n.
+      0xNNN  0x introduces a hexadecimal (base 16) constant.
+             Suffix L indicates a long value (at least 32 bits).
+
+      /* Table of CRCs of all 8-bit messages. */
+      unsigned long crc_table[256];
+
+      /* Flag: has the table been computed? Initially false. */
+      int crc_table_computed = 0;
+
+      /* Make the table for a fast CRC. */
+      void make_crc_table(void)
+      {
+        unsigned long c;
+
+
+
+Deutsch                      Informational                     [Page 11]
+
+RFC 1952             GZIP File Format Specification             May 1996
+
+
+        int n, k;
+        for (n = 0; n < 256; n++) {
+          c = (unsigned long) n;
+          for (k = 0; k < 8; k++) {
+            if (c & 1) {
+              c = 0xedb88320L ^ (c >> 1);
+            } else {
+              c = c >> 1;
+            }
+          }
+          crc_table[n] = c;
+        }
+        crc_table_computed = 1;
+      }
+
+      /*
+         Update a running crc with the bytes buf[0..len-1] and return
+       the updated crc. The crc should be initialized to zero. Pre- and
+       post-conditioning (one's complement) is performed within this
+       function so it shouldn't be done by the caller. Usage example:
+
+         unsigned long crc = 0L;
+
+         while (read_buffer(buffer, length) != EOF) {
+           crc = update_crc(crc, buffer, length);
+         }
+         if (crc != original_crc) error();
+      */
+      unsigned long update_crc(unsigned long crc,
+                      unsigned char *buf, int len)
+      {
+        unsigned long c = crc ^ 0xffffffffL;
+        int n;
+
+        if (!crc_table_computed)
+          make_crc_table();
+        for (n = 0; n < len; n++) {
+          c = crc_table[(c ^ buf[n]) & 0xff] ^ (c >> 8);
+        }
+        return c ^ 0xffffffffL;
+      }
+
+      /* Return the CRC of the bytes buf[0..len-1]. */
+      unsigned long crc(unsigned char *buf, int len)
+      {
+        return update_crc(0L, buf, len);
+      }
+
+
+
+
+Deutsch                      Informational                     [Page 12]
+
diff --git a/compat/zlib/doc/txtvsbin.txt b/compat/zlib/doc/txtvsbin.txt
new file mode 100644
index 0000000..2a901ea
--- /dev/null
+++ b/compat/zlib/doc/txtvsbin.txt
@@ -0,0 +1,107 @@
+A Fast Method for Identifying Plain Text Files
+==============================================
+
+
+Introduction
+------------
+
+Given a file coming from an unknown source, it is sometimes desirable
+to find out whether the format of that file is plain text.  Although
+this may appear like a simple task, a fully accurate detection of the
+file type requires heavy-duty semantic analysis on the file contents.
+It is, however, possible to obtain satisfactory results by employing
+various heuristics.
+
+Previous versions of PKZip and other zip-compatible compression tools
+were using a crude detection scheme: if more than 80% (4/5) of the bytes
+found in a certain buffer are within the range [7..127], the file is
+labeled as plain text, otherwise it is labeled as binary.  A prominent
+limitation of this scheme is the restriction to Latin-based alphabets.
+Other alphabets, like Greek, Cyrillic or Asian, make extensive use of
+the bytes within the range [128..255], and texts using these alphabets
+are most often misidentified by this scheme; in other words, the rate
+of false negatives is sometimes too high, which means that the recall
+is low.  Another weakness of this scheme is a reduced precision, due to
+the false positives that may occur when binary files containing large
+amounts of textual characters are misidentified as plain text.
+
+In this article we propose a new, simple detection scheme that features
+a much increased precision and a near-100% recall.  This scheme is
+designed to work on ASCII, Unicode and other ASCII-derived alphabets,
+and it handles single-byte encodings (ISO-8859, MacRoman, KOI8, etc.)
+and variable-sized encodings (ISO-2022, UTF-8, etc.).  Wider encodings
+(UCS-2/UTF-16 and UCS-4/UTF-32) are not handled, however.
+
+
+The Algorithm
+-------------
+
+The algorithm works by dividing the set of bytecodes [0..255] into three
+categories:
+- The allow list of textual bytecodes:
+  9 (TAB), 10 (LF), 13 (CR), 32 (SPACE) to 255.
+- The gray list of tolerated bytecodes:
+  7 (BEL), 8 (BS), 11 (VT), 12 (FF), 26 (SUB), 27 (ESC).
+- The block list of undesired, non-textual bytecodes:
+  0 (NUL) to 6, 14 to 31.
+
+If a file contains at least one byte that belongs to the allow list and
+no byte that belongs to the block list, then the file is categorized as
+plain text; otherwise, it is categorized as binary.  (The boundary case,
+when the file is empty, automatically falls into the latter category.)
+
+
+Rationale
+---------
+
+The idea behind this algorithm relies on two observations.
+
+The first observation is that, although the full range of 7-bit codes
+[0..127] is properly specified by the ASCII standard, most control
+characters in the range [0..31] are not used in practice.  The only
+widely-used, almost universally-portable control codes are 9 (TAB),
+10 (LF) and 13 (CR).  There are a few more control codes that are
+recognized on a reduced range of platforms and text viewers/editors:
+7 (BEL), 8 (BS), 11 (VT), 12 (FF), 26 (SUB) and 27 (ESC); but these
+codes are rarely (if ever) used alone, without being accompanied by
+some printable text.  Even the newer, portable text formats such as
+XML avoid using control characters outside the list mentioned here.
+
+The second observation is that most of the binary files tend to contain
+control characters, especially 0 (NUL).  Even though the older text
+detection schemes observe the presence of non-ASCII codes from the range
+[128..255], the precision rarely has to suffer if this upper range is
+labeled as textual, because the files that are genuinely binary tend to
+contain both control characters and codes from the upper range.  On the
+other hand, the upper range needs to be labeled as textual, because it
+is used by virtually all ASCII extensions.  In particular, this range is
+used for encoding non-Latin scripts.
+
+Since there is no counting involved, other than simply observing the
+presence or the absence of some byte values, the algorithm produces
+consistent results, regardless what alphabet encoding is being used.
+(If counting were involved, it could be possible to obtain different
+results on a text encoded, say, using ISO-8859-16 versus UTF-8.)
+
+There is an extra category of plain text files that are "polluted" with
+one or more block-listed codes, either by mistake or by peculiar design
+considerations.  In such cases, a scheme that tolerates a small fraction
+of block-listed codes would provide an increased recall (i.e. more true
+positives).  This, however, incurs a reduced precision overall, since
+false positives are more likely to appear in binary files that contain
+large chunks of textual data.  Furthermore, "polluted" plain text should
+be regarded as binary by general-purpose text detection schemes, because
+general-purpose text processing algorithms might not be applicable.
+Under this premise, it is safe to say that our detection method provides
+a near-100% recall.
+
+Experiments have been run on many files coming from various platforms
+and applications.  We tried plain text files, system logs, source code,
+formatted office documents, compiled object code, etc.  The results
+confirm the optimistic assumptions about the capabilities of this
+algorithm.
+
+
+--
+Cosmin Truta
+Last updated: 2006-May-28
diff --git a/compat/zlib/examples/README.examples b/compat/zlib/examples/README.examples
new file mode 100644
index 0000000..e3a4b88
--- /dev/null
+++ b/compat/zlib/examples/README.examples
@@ -0,0 +1,54 @@
+This directory contains examples of the use of zlib and other relevant
+programs and documentation.
+
+enough.c
+    calculation and justification of ENOUGH parameter in inftrees.h
+    - calculates the maximum table space used in inflate tree
+      construction over all possible Huffman codes
+
+fitblk.c
+    compress just enough input to nearly fill a requested output size
+    - zlib isn't designed to do this, but fitblk does it anyway
+
+gun.c
+    uncompress a gzip file
+    - illustrates the use of inflateBack() for high speed file-to-file
+      decompression using call-back functions
+    - is approximately twice as fast as gzip -d
+    - also provides Unix uncompress functionality, again twice as fast
+
+gzappend.c
+    append to a gzip file
+    - illustrates the use of the Z_BLOCK flush parameter for inflate()
+    - illustrates the use of deflatePrime() to start at any bit
+
+gzjoin.c
+    join gzip files without recalculating the crc or recompressing
+    - illustrates the use of the Z_BLOCK flush parameter for inflate()
+    - illustrates the use of crc32_combine()
+
+gzlog.c
+gzlog.h
+    efficiently and robustly maintain a message log file in gzip format
+    - illustrates use of raw deflate, Z_PARTIAL_FLUSH, deflatePrime(),
+      and deflateSetDictionary()
+    - illustrates use of a gzip header extra field
+
+gznorm.c
+    normalize a gzip file by combining members into a single member
+    - demonstrates how to concatenate deflate streams using Z_BLOCK
+
+zlib_how.html
+    painfully comprehensive description of zpipe.c (see below)
+    - describes in excruciating detail the use of deflate() and inflate()
+
+zpipe.c
+    reads and writes zlib streams from stdin to stdout
+    - illustrates the proper use of deflate() and inflate()
+    - deeply commented in zlib_how.html (see above)
+
+zran.c
+zran.h
+    index a zlib or gzip stream and randomly access it
+    - illustrates the use of Z_BLOCK, inflatePrime(), and
+      inflateSetDictionary() to provide random access
diff --git a/compat/zlib/examples/enough.c b/compat/zlib/examples/enough.c
new file mode 100644
index 0000000..8a3cade
--- /dev/null
+++ b/compat/zlib/examples/enough.c
@@ -0,0 +1,597 @@
+/* enough.c -- determine the maximum size of inflate's Huffman code tables over
+ * all possible valid and complete prefix codes, subject to a length limit.
+ * Copyright (C) 2007, 2008, 2012, 2018 Mark Adler
+ * Version 1.5  5 August 2018  Mark Adler
+ */
+
+/* Version history:
+   1.0   3 Jan 2007  First version (derived from codecount.c version 1.4)
+   1.1   4 Jan 2007  Use faster incremental table usage computation
+                     Prune examine() search on previously visited states
+   1.2   5 Jan 2007  Comments clean up
+                     As inflate does, decrease root for short codes
+                     Refuse cases where inflate would increase root
+   1.3  17 Feb 2008  Add argument for initial root table size
+                     Fix bug for initial root table size == max - 1
+                     Use a macro to compute the history index
+   1.4  18 Aug 2012  Avoid shifts more than bits in type (caused endless loop!)
+                     Clean up comparisons of different types
+                     Clean up code indentation
+   1.5   5 Aug 2018  Clean up code style, formatting, and comments
+                     Show all the codes for the maximum, and only the maximum
+ */
+
+/*
+   Examine all possible prefix codes for a given number of symbols and a
+   maximum code length in bits to determine the maximum table size for zlib's
+   inflate. Only complete prefix codes are counted.
+
+   Two codes are considered distinct if the vectors of the number of codes per
+   length are not identical. So permutations of the symbol assignments result
+   in the same code for the counting, as do permutations of the assignments of
+   the bit values to the codes (i.e. only canonical codes are counted).
+
+   We build a code from shorter to longer lengths, determining how many symbols
+   are coded at each length. At each step, we have how many symbols remain to
+   be coded, what the last code length used was, and how many bit patterns of
+   that length remain unused. Then we add one to the code length and double the
+   number of unused patterns to graduate to the next code length. We then
+   assign all portions of the remaining symbols to that code length that
+   preserve the properties of a correct and eventually complete code. Those
+   properties are: we cannot use more bit patterns than are available; and when
+   all the symbols are used, there are exactly zero possible bit patterns left
+   unused.
+
+   The inflate Huffman decoding algorithm uses two-level lookup tables for
+   speed. There is a single first-level table to decode codes up to root bits
+   in length (root == 9 for literal/length codes and root == 6 for distance
+   codes, in the current inflate implementation). The base table has 1 << root
+   entries and is indexed by the next root bits of input. Codes shorter than
+   root bits have replicated table entries, so that the correct entry is
+   pointed to regardless of the bits that follow the short code. If the code is
+   longer than root bits, then the table entry points to a second-level table.
+   The size of that table is determined by the longest code with that root-bit
+   prefix. If that longest code has length len, then the table has size 1 <<
+   (len - root), to index the remaining bits in that set of codes. Each
+   subsequent root-bit prefix then has its own sub-table. The total number of
+   table entries required by the code is calculated incrementally as the number
+   of codes at each bit length is populated. When all of the codes are shorter
+   than root bits, then root is reduced to the longest code length, resulting
+   in a single, smaller, one-level table.
+
+   The inflate algorithm also provides for small values of root (relative to
+   the log2 of the number of symbols), where the shortest code has more bits
+   than root. In that case, root is increased to the length of the shortest
+   code. This program, by design, does not handle that case, so it is verified
+   that the number of symbols is less than 1 << (root + 1).
+
+   In order to speed up the examination (by about ten orders of magnitude for
+   the default arguments), the intermediate states in the build-up of a code
+   are remembered and previously visited branches are pruned. The memory
+   required for this will increase rapidly with the total number of symbols and
+   the maximum code length in bits. However this is a very small price to pay
+   for the vast speedup.
+
+   First, all of the possible prefix codes are counted, and reachable
+   intermediate states are noted by a non-zero count in a saved-results array.
+   Second, the intermediate states that lead to (root + 1) bit or longer codes
+   are used to look at all sub-codes from those junctures for their inflate
+   memory usage. (The amount of memory used is not affected by the number of
+   codes of root bits or less in length.)  Third, the visited states in the
+   construction of those sub-codes and the associated calculation of the table
+   size is recalled in order to avoid recalculating from the same juncture.
+   Beginning the code examination at (root + 1) bit codes, which is enabled by
+   identifying the reachable nodes, accounts for about six of the orders of
+   magnitude of improvement for the default arguments. About another four
+   orders of magnitude come from not revisiting previous states. Out of
+   approximately 2x10^16 possible prefix codes, only about 2x10^6 sub-codes
+   need to be examined to cover all of the possible table memory usage cases
+   for the default arguments of 286 symbols limited to 15-bit codes.
+
+   Note that the uintmax_t type is used for counting. It is quite easy to
+   exceed the capacity of an eight-byte integer with a large number of symbols
+   and a large maximum code length, so multiple-precision arithmetic would need
+   to replace the integer arithmetic in that case. This program will abort if
+   an overflow occurs. The big_t type identifies where the counting takes
+   place.
+
+   The uintmax_t type is also used for calculating the number of possible codes
+   remaining at the maximum length. This limits the maximum code length to the
+   number of bits in a long long minus the number of bits needed to represent
+   the symbols in a flat code. The code_t type identifies where the bit-pattern
+   counting takes place.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <assert.h>
+
+#define local static
+
+// Special data types.
+typedef uintmax_t big_t;    // type for code counting
+#define PRIbig "ju"         // printf format for big_t
+typedef uintmax_t code_t;   // type for bit pattern counting
+struct tab {                // type for been-here check
+    size_t len;             // allocated length of bit vector in octets
+    char *vec;              // allocated bit vector
+};
+
+/* The array for saving results, num[], is indexed with this triplet:
+
+      syms: number of symbols remaining to code
+      left: number of available bit patterns at length len
+      len: number of bits in the codes currently being assigned
+
+   Those indices are constrained thusly when saving results:
+
+      syms: 3..totsym (totsym == total symbols to code)
+      left: 2..syms - 1, but only the evens (so syms == 8 -> 2, 4, 6)
+      len: 1..max - 1 (max == maximum code length in bits)
+
+   syms == 2 is not saved since that immediately leads to a single code. left
+   must be even, since it represents the number of available bit patterns at
+   the current length, which is double the number at the previous length. left
+   ends at syms-1 since left == syms immediately results in a single code.
+   (left > sym is not allowed since that would result in an incomplete code.)
+   len is less than max, since the code completes immediately when len == max.
+
+   The offset into the array is calculated for the three indices with the first
+   one (syms) being outermost, and the last one (len) being innermost. We build
+   the array with length max-1 lists for the len index, with syms-3 of those
+   for each symbol. There are totsym-2 of those, with each one varying in
+   length as a function of sym. See the calculation of index in map() for the
+   index, and the calculation of size in main() for the size of the array.
+
+   For the deflate example of 286 symbols limited to 15-bit codes, the array
+   has 284,284 entries, taking up 2.17 MB for an 8-byte big_t. More than half
+   of the space allocated for saved results is actually used -- not all
+   possible triplets are reached in the generation of valid prefix codes.
+ */
+
+/* The array for tracking visited states, done[], is itself indexed identically
+   to the num[] array as described above for the (syms, left, len) triplet.
+   Each element in the array is further indexed by the (mem, rem) doublet,
+   where mem is the amount of inflate table space used so far, and rem is the
+   remaining unused entries in the current inflate sub-table. Each indexed
+   element is simply one bit indicating whether the state has been visited or
+   not. Since the ranges for mem and rem are not known a priori, each bit
+   vector is of a variable size, and grows as needed to accommodate the visited
+   states. mem and rem are used to calculate a single index in a triangular
+   array. Since the range of mem is expected in the default case to be about
+   ten times larger than the range of rem, the array is skewed to reduce the
+   memory usage, with eight times the range for mem than for rem. See the
+   calculations for offset and bit in been_here() for the details.
+
+   For the deflate example of 286 symbols limited to 15-bit codes, the bit
+   vectors grow to total 5.5 MB, in addition to the 4.3 MB done array itself.
+ */
+
+// Type for a variable-length, allocated string.
+typedef struct {
+    char *str;          // pointer to allocated string
+    size_t size;        // size of allocation
+    size_t len;         // length of string, not including terminating zero
+} string_t;
+
+// Clear a string_t.
+local void string_clear(string_t *s) {
+    s->str[0] = 0;
+    s->len = 0;
+}
+
+// Initialize a string_t.
+local void string_init(string_t *s) {
+    s->size = 16;
+    s->str = malloc(s->size);
+    assert(s->str != NULL && "out of memory");
+    string_clear(s);
+}
+
+// Release the allocation of a string_t.
+local void string_free(string_t *s) {
+    free(s->str);
+    s->str = NULL;
+    s->size = 0;
+    s->len = 0;
+}
+
+// Save the results of printf with fmt and the subsequent argument list to s.
+// Each call appends to s. The allocated space for s is increased as needed.
+local void string_printf(string_t *s, char *fmt, ...) {
+    va_list ap;
+    va_start(ap, fmt);
+    size_t len = s->len;
+    int ret = vsnprintf(s->str + len, s->size - len, fmt, ap);
+    assert(ret >= 0 && "out of memory");
+    s->len += ret;
+    if (s->size < s->len + 1) {
+        do {
+            s->size <<= 1;
+            assert(s->size != 0 && "overflow");
+        } while (s->size < s->len + 1);
+        s->str = realloc(s->str, s->size);
+        assert(s->str != NULL && "out of memory");
+        vsnprintf(s->str + len, s->size - len, fmt, ap);
+    }
+    va_end(ap);
+}
+
+// Globals to avoid propagating constants or constant pointers recursively.
+struct {
+    int max;            // maximum allowed bit length for the codes
+    int root;           // size of base code table in bits
+    int large;          // largest code table so far
+    size_t size;        // number of elements in num and done
+    big_t tot;          // total number of codes with maximum tables size
+    string_t out;       // display of subcodes for maximum tables size
+    int *code;          // number of symbols assigned to each bit length
+    big_t *num;         // saved results array for code counting
+    struct tab *done;   // states already evaluated array
+} g;
+
+// Index function for num[] and done[].
+local inline size_t map(int syms, int left, int len) {
+    return ((size_t)((syms - 1) >> 1) * ((syms - 2) >> 1) +
+            (left >> 1) - 1) * (g.max - 1) +
+           len - 1;
+}
+
+// Free allocated space in globals.
+local void cleanup(void) {
+    if (g.done != NULL) {
+        for (size_t n = 0; n < g.size; n++)
+            if (g.done[n].len)
+                free(g.done[n].vec);
+        g.size = 0;
+        free(g.done);   g.done = NULL;
+    }
+    free(g.num);    g.num = NULL;
+    free(g.code);   g.code = NULL;
+    string_free(&g.out);
+}
+
+// Return the number of possible prefix codes using bit patterns of lengths len
+// through max inclusive, coding syms symbols, with left bit patterns of length
+// len unused -- return -1 if there is an overflow in the counting. Keep a
+// record of previous results in num to prevent repeating the same calculation.
+local big_t count(int syms, int left, int len) {
+    // see if only one possible code
+    if (syms == left)
+        return 1;
+
+    // note and verify the expected state
+    assert(syms > left && left > 0 && len < g.max);
+
+    // see if we've done this one already
+    size_t index = map(syms, left, len);
+    big_t got = g.num[index];
+    if (got)
+        return got;         // we have -- return the saved result
+
+    // we need to use at least this many bit patterns so that the code won't be
+    // incomplete at the next length (more bit patterns than symbols)
+    int least = (left << 1) - syms;
+    if (least < 0)
+        least = 0;
+
+    // we can use at most this many bit patterns, lest there not be enough
+    // available for the remaining symbols at the maximum length (if there were
+    // no limit to the code length, this would become: most = left - 1)
+    int most = (((code_t)left << (g.max - len)) - syms) /
+               (((code_t)1 << (g.max - len)) - 1);
+
+    // count all possible codes from this juncture and add them up
+    big_t sum = 0;
+    for (int use = least; use <= most; use++) {
+        got = count(syms - use, (left - use) << 1, len + 1);
+        sum += got;
+        if (got == (big_t)-1 || sum < got)      // overflow
+            return (big_t)-1;
+    }
+
+    // verify that all recursive calls are productive
+    assert(sum != 0);
+
+    // save the result and return it
+    g.num[index] = sum;
+    return sum;
+}
+
+// Return true if we've been here before, set to true if not. Set a bit in a
+// bit vector to indicate visiting this state. Each (syms,len,left) state has a
+// variable size bit vector indexed by (mem,rem). The bit vector is lengthened
+// as needed to allow setting the (mem,rem) bit.
+local int been_here(int syms, int left, int len, int mem, int rem) {
+    // point to vector for (syms,left,len), bit in vector for (mem,rem)
+    size_t index = map(syms, left, len);
+    mem -= 1 << g.root;             // mem always includes the root table
+    mem >>= 1;                      // mem and rem are always even
+    rem >>= 1;
+    size_t offset = (mem >> 3) + rem;
+    offset = ((offset * (offset + 1)) >> 1) + rem;
+    int bit = 1 << (mem & 7);
+
+    // see if we've been here
+    size_t length = g.done[index].len;
+    if (offset < length && (g.done[index].vec[offset] & bit) != 0)
+        return 1;       // done this!
+
+    // we haven't been here before -- set the bit to show we have now
+
+    // see if we need to lengthen the vector in order to set the bit
+    if (length <= offset) {
+        // if we have one already, enlarge it, zero out the appended space
+        char *vector;
+        if (length) {
+            do {
+                length <<= 1;
+            } while (length <= offset);
+            vector = realloc(g.done[index].vec, length);
+            assert(vector != NULL && "out of memory");
+            memset(vector + g.done[index].len, 0, length - g.done[index].len);
+        }
+
+        // otherwise we need to make a new vector and zero it out
+        else {
+            length = 16;
+            while (length <= offset)
+                length <<= 1;
+            vector = calloc(length, 1);
+            assert(vector != NULL && "out of memory");
+        }
+
+        // install the new vector
+        g.done[index].len = length;
+        g.done[index].vec = vector;
+    }
+
+    // set the bit
+    g.done[index].vec[offset] |= bit;
+    return 0;
+}
+
+// Examine all possible codes from the given node (syms, len, left). Compute
+// the amount of memory required to build inflate's decoding tables, where the
+// number of code structures used so far is mem, and the number remaining in
+// the current sub-table is rem.
+local void examine(int syms, int left, int len, int mem, int rem) {
+    // see if we have a complete code
+    if (syms == left) {
+        // set the last code entry
+        g.code[len] = left;
+
+        // complete computation of memory used by this code
+        while (rem < left) {
+            left -= rem;
+            rem = 1 << (len - g.root);
+            mem += rem;
+        }
+        assert(rem == left);
+
+        // if this is at the maximum, show the sub-code
+        if (mem >= g.large) {
+            // if this is a new maximum, update the maximum and clear out the
+            // printed sub-codes from the previous maximum
+            if (mem > g.large) {
+                g.large = mem;
+                string_clear(&g.out);
+            }
+
+            // compute the starting state for this sub-code
+            syms = 0;
+            left = 1 << g.max;
+            for (int bits = g.max; bits > g.root; bits--) {
+                syms += g.code[bits];
+                left -= g.code[bits];
+                assert((left & 1) == 0);
+                left >>= 1;
+            }
+
+            // print the starting state and the resulting sub-code to g.out
+            string_printf(&g.out, "<%u, %u, %u>:",
+                          syms, g.root + 1, ((1 << g.root) - left) << 1);
+            for (int bits = g.root + 1; bits <= g.max; bits++)
+                if (g.code[bits])
+                    string_printf(&g.out, " %d[%d]", g.code[bits], bits);
+            string_printf(&g.out, "\n");
+        }
+
+        // remove entries as we drop back down in the recursion
+        g.code[len] = 0;
+        return;
+    }
+
+    // prune the tree if we can
+    if (been_here(syms, left, len, mem, rem))
+        return;
+
+    // we need to use at least this many bit patterns so that the code won't be
+    // incomplete at the next length (more bit patterns than symbols)
+    int least = (left << 1) - syms;
+    if (least < 0)
+        least = 0;
+
+    // we can use at most this many bit patterns, lest there not be enough
+    // available for the remaining symbols at the maximum length (if there were
+    // no limit to the code length, this would become: most = left - 1)
+    int most = (((code_t)left << (g.max - len)) - syms) /
+               (((code_t)1 << (g.max - len)) - 1);
+
+    // occupy least table spaces, creating new sub-tables as needed
+    int use = least;
+    while (rem < use) {
+        use -= rem;
+        rem = 1 << (len - g.root);
+        mem += rem;
+    }
+    rem -= use;
+
+    // examine codes from here, updating table space as we go
+    for (use = least; use <= most; use++) {
+        g.code[len] = use;
+        examine(syms - use, (left - use) << 1, len + 1,
+                mem + (rem ? 1 << (len - g.root) : 0), rem << 1);
+        if (rem == 0) {
+            rem = 1 << (len - g.root);
+            mem += rem;
+        }
+        rem--;
+    }
+
+    // remove entries as we drop back down in the recursion
+    g.code[len] = 0;
+}
+
+// Look at all sub-codes starting with root + 1 bits. Look at only the valid
+// intermediate code states (syms, left, len). For each completed code,
+// calculate the amount of memory required by inflate to build the decoding
+// tables. Find the maximum amount of memory required and show the codes that
+// require that maximum.
+local void enough(int syms) {
+    // clear code
+    for (int n = 0; n <= g.max; n++)
+        g.code[n] = 0;
+
+    // look at all (root + 1) bit and longer codes
+    string_clear(&g.out);           // empty saved results
+    g.large = 1 << g.root;          // base table
+    if (g.root < g.max)             // otherwise, there's only a base table
+        for (int n = 3; n <= syms; n++)
+            for (int left = 2; left < n; left += 2) {
+                // look at all reachable (root + 1) bit nodes, and the
+                // resulting codes (complete at root + 2 or more)
+                size_t index = map(n, left, g.root + 1);
+                if (g.root + 1 < g.max && g.num[index]) // reachable node
+                    examine(n, left, g.root + 1, 1 << g.root, 0);
+
+                // also look at root bit codes with completions at root + 1
+                // bits (not saved in num, since complete), just in case
+                if (g.num[index - 1] && n <= left << 1)
+                    examine((n - left) << 1, (n - left) << 1, g.root + 1,
+                            1 << g.root, 0);
+            }
+
+    // done
+    printf("maximum of %d table entries for root = %d\n", g.large, g.root);
+    fputs(g.out.str, stdout);
+}
+
+// Examine and show the total number of possible prefix codes for a given
+// maximum number of symbols, initial root table size, and maximum code length
+// in bits -- those are the command arguments in that order. The default values
+// are 286, 9, and 15 respectively, for the deflate literal/length code. The
+// possible codes are counted for each number of coded symbols from two to the
+// maximum. The counts for each of those and the total number of codes are
+// shown. The maximum number of inflate table entries is then calculated across
+// all possible codes. Each new maximum number of table entries and the
+// associated sub-code (starting at root + 1 == 10 bits) is shown.
+//
+// To count and examine prefix codes that are not length-limited, provide a
+// maximum length equal to the number of symbols minus one.
+//
+// For the deflate literal/length code, use "enough". For the deflate distance
+// code, use "enough 30 6".
+int main(int argc, char **argv) {
+    // set up globals for cleanup()
+    g.code = NULL;
+    g.num = NULL;
+    g.done = NULL;
+    string_init(&g.out);
+
+    // get arguments -- default to the deflate literal/length code
+    int syms = 286;
+    g.root = 9;
+    g.max = 15;
+    if (argc > 1) {
+        syms = atoi(argv[1]);
+        if (argc > 2) {
+            g.root = atoi(argv[2]);
+            if (argc > 3)
+                g.max = atoi(argv[3]);
+        }
+    }
+    if (argc > 4 || syms < 2 || g.root < 1 || g.max < 1) {
+        fputs("invalid arguments, need: [sym >= 2 [root >= 1 [max >= 1]]]\n",
+              stderr);
+        return 1;
+    }
+
+    // if not restricting the code length, the longest is syms - 1
+    if (g.max > syms - 1)
+        g.max = syms - 1;
+
+    // determine the number of bits in a code_t
+    int bits = 0;
+    for (code_t word = 1; word; word <<= 1)
+        bits++;
+
+    // make sure that the calculation of most will not overflow
+    if (g.max > bits || (code_t)(syms - 2) >= ((code_t)-1 >> (g.max - 1))) {
+        fputs("abort: code length too long for internal types\n", stderr);
+        return 1;
+    }
+
+    // reject impossible code requests
+    if ((code_t)(syms - 1) > ((code_t)1 << g.max) - 1) {
+        fprintf(stderr, "%d symbols cannot be coded in %d bits\n",
+                syms, g.max);
+        return 1;
+    }
+
+    // allocate code vector
+    g.code = calloc(g.max + 1, sizeof(int));
+    assert(g.code != NULL && "out of memory");
+
+    // determine size of saved results array, checking for overflows,
+    // allocate and clear the array (set all to zero with calloc())
+    if (syms == 2)              // iff max == 1
+        g.num = NULL;           // won't be saving any results
+    else {
+        g.size = syms >> 1;
+        int n = (syms - 1) >> 1;
+        assert(g.size <= (size_t)-1 / n && "overflow");
+        g.size *= n;
+        n = g.max - 1;
+        assert(g.size <= (size_t)-1 / n && "overflow");
+        g.size *= n;
+        g.num = calloc(g.size, sizeof(big_t));
+        assert(g.num != NULL && "out of memory");
+    }
+
+    // count possible codes for all numbers of symbols, add up counts
+    big_t sum = 0;
+    for (int n = 2; n <= syms; n++) {
+        big_t got = count(n, 2, 1);
+        sum += got;
+        assert(got != (big_t)-1 && sum >= got && "overflow");
+    }
+    printf("%"PRIbig" total codes for 2 to %d symbols", sum, syms);
+    if (g.max < syms - 1)
+        printf(" (%d-bit length limit)\n", g.max);
+    else
+        puts(" (no length limit)");
+
+    // allocate and clear done array for been_here()
+    if (syms == 2)
+        g.done = NULL;
+    else {
+        g.done = calloc(g.size, sizeof(struct tab));
+        assert(g.done != NULL && "out of memory");
+    }
+
+    // find and show maximum inflate table usage
+    if (g.root > g.max)             // reduce root to max length
+        g.root = g.max;
+    if ((code_t)syms < ((code_t)1 << (g.root + 1)))
+        enough(syms);
+    else
+        fputs("cannot handle minimum code lengths > root", stderr);
+
+    // done
+    cleanup();
+    return 0;
+}
diff --git a/compat/zlib/examples/fitblk.c b/compat/zlib/examples/fitblk.c
new file mode 100644
index 0000000..723dc00
--- /dev/null
+++ b/compat/zlib/examples/fitblk.c
@@ -0,0 +1,233 @@
+/* fitblk.c: example of fitting compressed output to a specified size
+   Not copyrighted -- provided to the public domain
+   Version 1.1  25 November 2004  Mark Adler */
+
+/* Version history:
+   1.0  24 Nov 2004  First version
+   1.1  25 Nov 2004  Change deflateInit2() to deflateInit()
+                     Use fixed-size, stack-allocated raw buffers
+                     Simplify code moving compression to subroutines
+                     Use assert() for internal errors
+                     Add detailed description of approach
+ */
+
+/* Approach to just fitting a requested compressed size:
+
+   fitblk performs three compression passes on a portion of the input
+   data in order to determine how much of that input will compress to
+   nearly the requested output block size.  The first pass generates
+   enough deflate blocks to produce output to fill the requested
+   output size plus a specified excess amount (see the EXCESS define
+   below).  The last deflate block may go quite a bit past that, but
+   is discarded.  The second pass decompresses and recompresses just
+   the compressed data that fit in the requested plus excess sized
+   buffer.  The deflate process is terminated after that amount of
+   input, which is less than the amount consumed on the first pass.
+   The last deflate block of the result will be of a comparable size
+   to the final product, so that the header for that deflate block and
+   the compression ratio for that block will be about the same as in
+   the final product.  The third compression pass decompresses the
+   result of the second step, but only the compressed data up to the
+   requested size minus an amount to allow the compressed stream to
+   complete (see the MARGIN define below).  That will result in a
+   final compressed stream whose length is less than or equal to the
+   requested size.  Assuming sufficient input and a requested size
+   greater than a few hundred bytes, the shortfall will typically be
+   less than ten bytes.
+
+   If the input is short enough that the first compression completes
+   before filling the requested output size, then that compressed
+   stream is return with no recompression.
+
+   EXCESS is chosen to be just greater than the shortfall seen in a
+   two pass approach similar to the above.  That shortfall is due to
+   the last deflate block compressing more efficiently with a smaller
+   header on the second pass.  EXCESS is set to be large enough so
+   that there is enough uncompressed data for the second pass to fill
+   out the requested size, and small enough so that the final deflate
+   block of the second pass will be close in size to the final deflate
+   block of the third and final pass.  MARGIN is chosen to be just
+   large enough to assure that the final compression has enough room
+   to complete in all cases.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include "zlib.h"
+
+#define local static
+
+/* print nastygram and leave */
+local void quit(char *why)
+{
+    fprintf(stderr, "fitblk abort: %s\n", why);
+    exit(1);
+}
+
+#define RAWLEN 4096    /* intermediate uncompressed buffer size */
+
+/* compress from file to def until provided buffer is full or end of
+   input reached; return last deflate() return value, or Z_ERRNO if
+   there was read error on the file */
+local int partcompress(FILE *in, z_streamp def)
+{
+    int ret, flush;
+    unsigned char raw[RAWLEN];
+
+    flush = Z_NO_FLUSH;
+    do {
+        def->avail_in = fread(raw, 1, RAWLEN, in);
+        if (ferror(in))
+            return Z_ERRNO;
+        def->next_in = raw;
+        if (feof(in))
+            flush = Z_FINISH;
+        ret = deflate(def, flush);
+        assert(ret != Z_STREAM_ERROR);
+    } while (def->avail_out != 0 && flush == Z_NO_FLUSH);
+    return ret;
+}
+
+/* recompress from inf's input to def's output; the input for inf and
+   the output for def are set in those structures before calling;
+   return last deflate() return value, or Z_MEM_ERROR if inflate()
+   was not able to allocate enough memory when it needed to */
+local int recompress(z_streamp inf, z_streamp def)
+{
+    int ret, flush;
+    unsigned char raw[RAWLEN];
+
+    flush = Z_NO_FLUSH;
+    do {
+        /* decompress */
+        inf->avail_out = RAWLEN;
+        inf->next_out = raw;
+        ret = inflate(inf, Z_NO_FLUSH);
+        assert(ret != Z_STREAM_ERROR && ret != Z_DATA_ERROR &&
+               ret != Z_NEED_DICT);
+        if (ret == Z_MEM_ERROR)
+            return ret;
+
+        /* compress what was decompressed until done or no room */
+        def->avail_in = RAWLEN - inf->avail_out;
+        def->next_in = raw;
+        if (inf->avail_out != 0)
+            flush = Z_FINISH;
+        ret = deflate(def, flush);
+        assert(ret != Z_STREAM_ERROR);
+    } while (ret != Z_STREAM_END && def->avail_out != 0);
+    return ret;
+}
+
+#define EXCESS 256      /* empirically determined stream overage */
+#define MARGIN 8        /* amount to back off for completion */
+
+/* compress from stdin to fixed-size block on stdout */
+int main(int argc, char **argv)
+{
+    int ret;                /* return code */
+    unsigned size;          /* requested fixed output block size */
+    unsigned have;          /* bytes written by deflate() call */
+    unsigned char *blk;     /* intermediate and final stream */
+    unsigned char *tmp;     /* close to desired size stream */
+    z_stream def, inf;      /* zlib deflate and inflate states */
+
+    /* get requested output size */
+    if (argc != 2)
+        quit("need one argument: size of output block");
+    ret = strtol(argv[1], argv + 1, 10);
+    if (argv[1][0] != 0)
+        quit("argument must be a number");
+    if (ret < 8)            /* 8 is minimum zlib stream size */
+        quit("need positive size of 8 or greater");
+    size = (unsigned)ret;
+
+    /* allocate memory for buffers and compression engine */
+    blk = malloc(size + EXCESS);
+    def.zalloc = Z_NULL;
+    def.zfree = Z_NULL;
+    def.opaque = Z_NULL;
+    ret = deflateInit(&def, Z_DEFAULT_COMPRESSION);
+    if (ret != Z_OK || blk == NULL)
+        quit("out of memory");
+
+    /* compress from stdin until output full, or no more input */
+    def.avail_out = size + EXCESS;
+    def.next_out = blk;
+    ret = partcompress(stdin, &def);
+    if (ret == Z_ERRNO)
+        quit("error reading input");
+
+    /* if it all fit, then size was undersubscribed -- done! */
+    if (ret == Z_STREAM_END && def.avail_out >= EXCESS) {
+        /* write block to stdout */
+        have = size + EXCESS - def.avail_out;
+        if (fwrite(blk, 1, have, stdout) != have || ferror(stdout))
+            quit("error writing output");
+
+        /* clean up and print results to stderr */
+        ret = deflateEnd(&def);
+        assert(ret != Z_STREAM_ERROR);
+        free(blk);
+        fprintf(stderr,
+                "%u bytes unused out of %u requested (all input)\n",
+                size - have, size);
+        return 0;
+    }
+
+    /* it didn't all fit -- set up for recompression */
+    inf.zalloc = Z_NULL;
+    inf.zfree = Z_NULL;
+    inf.opaque = Z_NULL;
+    inf.avail_in = 0;
+    inf.next_in = Z_NULL;
+    ret = inflateInit(&inf);
+    tmp = malloc(size + EXCESS);
+    if (ret != Z_OK || tmp == NULL)
+        quit("out of memory");
+    ret = deflateReset(&def);
+    assert(ret != Z_STREAM_ERROR);
+
+    /* do first recompression close to the right amount */
+    inf.avail_in = size + EXCESS;
+    inf.next_in = blk;
+    def.avail_out = size + EXCESS;
+    def.next_out = tmp;
+    ret = recompress(&inf, &def);
+    if (ret == Z_MEM_ERROR)
+        quit("out of memory");
+
+    /* set up for next recompression */
+    ret = inflateReset(&inf);
+    assert(ret != Z_STREAM_ERROR);
+    ret = deflateReset(&def);
+    assert(ret != Z_STREAM_ERROR);
+
+    /* do second and final recompression (third compression) */
+    inf.avail_in = size - MARGIN;   /* assure stream will complete */
+    inf.next_in = tmp;
+    def.avail_out = size;
+    def.next_out = blk;
+    ret = recompress(&inf, &def);
+    if (ret == Z_MEM_ERROR)
+        quit("out of memory");
+    assert(ret == Z_STREAM_END);    /* otherwise MARGIN too small */
+
+    /* done -- write block to stdout */
+    have = size - def.avail_out;
+    if (fwrite(blk, 1, have, stdout) != have || ferror(stdout))
+        quit("error writing output");
+
+    /* clean up and print results to stderr */
+    free(tmp);
+    ret = inflateEnd(&inf);
+    assert(ret != Z_STREAM_ERROR);
+    ret = deflateEnd(&def);
+    assert(ret != Z_STREAM_ERROR);
+    free(blk);
+    fprintf(stderr,
+            "%u bytes unused out of %u requested (%lu input)\n",
+            size - have, size, def.total_in);
+    return 0;
+}
diff --git a/compat/zlib/examples/gun.c b/compat/zlib/examples/gun.c
new file mode 100644
index 0000000..bea5497
--- /dev/null
+++ b/compat/zlib/examples/gun.c
@@ -0,0 +1,702 @@
+/* gun.c -- simple gunzip to give an example of the use of inflateBack()
+ * Copyright (C) 2003, 2005, 2008, 2010, 2012 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+   Version 1.7  12 August 2012  Mark Adler */
+
+/* Version history:
+   1.0  16 Feb 2003  First version for testing of inflateBack()
+   1.1  21 Feb 2005  Decompress concatenated gzip streams
+                     Remove use of "this" variable (C++ keyword)
+                     Fix return value for in()
+                     Improve allocation failure checking
+                     Add typecasting for void * structures
+                     Add -h option for command version and usage
+                     Add a bunch of comments
+   1.2  20 Mar 2005  Add Unix compress (LZW) decompression
+                     Copy file attributes from input file to output file
+   1.3  12 Jun 2005  Add casts for error messages [Oberhumer]
+   1.4   8 Dec 2006  LZW decompression speed improvements
+   1.5   9 Feb 2008  Avoid warning in latest version of gcc
+   1.6  17 Jan 2010  Avoid signed/unsigned comparison warnings
+   1.7  12 Aug 2012  Update for z_const usage in zlib 1.2.8
+ */
+
+/*
+   gun [ -t ] [ name ... ]
+
+   decompresses the data in the named gzip files.  If no arguments are given,
+   gun will decompress from stdin to stdout.  The names must end in .gz, -gz,
+   .z, -z, _z, or .Z.  The uncompressed data will be written to a file name
+   with the suffix stripped.  On success, the original file is deleted.  On
+   failure, the output file is deleted.  For most failures, the command will
+   continue to process the remaining names on the command line.  A memory
+   allocation failure will abort the command.  If -t is specified, then the
+   listed files or stdin will be tested as gzip files for integrity (without
+   checking for a proper suffix), no output will be written, and no files
+   will be deleted.
+
+   Like gzip, gun allows concatenated gzip streams and will decompress them,
+   writing all of the uncompressed data to the output.  Unlike gzip, gun allows
+   an empty file on input, and will produce no error writing an empty output
+   file.
+
+   gun will also decompress files made by Unix compress, which uses LZW
+   compression.  These files are automatically detected by virtue of their
+   magic header bytes.  Since the end of Unix compress stream is marked by the
+   end-of-file, they cannot be concatenated.  If a Unix compress stream is
+   encountered in an input file, it is the last stream in that file.
+
+   Like gunzip and uncompress, the file attributes of the original compressed
+   file are maintained in the final uncompressed file, to the extent that the
+   user permissions allow it.
+
+   On my Mac OS X PowerPC G4, gun is almost twice as fast as gunzip (version
+   1.2.4) is on the same file, when gun is linked with zlib 1.2.2.  Also the
+   LZW decompression provided by gun is about twice as fast as the standard
+   Unix uncompress command.
+ */
+
+/* external functions and related types and constants */
+#include <stdio.h>          /* fprintf() */
+#include <stdlib.h>         /* malloc(), free() */
+#include <string.h>         /* strerror(), strcmp(), strlen(), memcpy() */
+#include <errno.h>          /* errno */
+#include <fcntl.h>          /* open() */
+#include <unistd.h>         /* read(), write(), close(), chown(), unlink() */
+#include <sys/types.h>
+#include <sys/stat.h>       /* stat(), chmod() */
+#include <utime.h>          /* utime() */
+#include "zlib.h"           /* inflateBackInit(), inflateBack(), */
+                            /* inflateBackEnd(), crc32() */
+
+/* function declaration */
+#define local static
+
+/* buffer constants */
+#define SIZE 32768U         /* input and output buffer sizes */
+#define PIECE 16384         /* limits i/o chunks for 16-bit int case */
+
+/* structure for infback() to pass to input function in() -- it maintains the
+   input file and a buffer of size SIZE */
+struct ind {
+    int infile;
+    unsigned char *inbuf;
+};
+
+/* Load input buffer, assumed to be empty, and return bytes loaded and a
+   pointer to them.  read() is called until the buffer is full, or until it
+   returns end-of-file or error.  Return 0 on error. */
+local unsigned in(void *in_desc, z_const unsigned char **buf)
+{
+    int ret;
+    unsigned len;
+    unsigned char *next;
+    struct ind *me = (struct ind *)in_desc;
+
+    next = me->inbuf;
+    *buf = next;
+    len = 0;
+    do {
+        ret = PIECE;
+        if ((unsigned)ret > SIZE - len)
+            ret = (int)(SIZE - len);
+        ret = (int)read(me->infile, next, ret);
+        if (ret == -1) {
+            len = 0;
+            break;
+        }
+        next += ret;
+        len += ret;
+    } while (ret != 0 && len < SIZE);
+    return len;
+}
+
+/* structure for infback() to pass to output function out() -- it maintains the
+   output file, a running CRC-32 check on the output and the total number of
+   bytes output, both for checking against the gzip trailer.  (The length in
+   the gzip trailer is stored modulo 2^32, so it's ok if a long is 32 bits and
+   the output is greater than 4 GB.) */
+struct outd {
+    int outfile;
+    int check;                  /* true if checking crc and total */
+    unsigned long crc;
+    unsigned long total;
+};
+
+/* Write output buffer and update the CRC-32 and total bytes written.  write()
+   is called until all of the output is written or an error is encountered.
+   On success out() returns 0.  For a write failure, out() returns 1.  If the
+   output file descriptor is -1, then nothing is written.
+ */
+local int out(void *out_desc, unsigned char *buf, unsigned len)
+{
+    int ret;
+    struct outd *me = (struct outd *)out_desc;
+
+    if (me->check) {
+        me->crc = crc32(me->crc, buf, len);
+        me->total += len;
+    }
+    if (me->outfile != -1)
+        do {
+            ret = PIECE;
+            if ((unsigned)ret > len)
+                ret = (int)len;
+            ret = (int)write(me->outfile, buf, ret);
+            if (ret == -1)
+                return 1;
+            buf += ret;
+            len -= ret;
+        } while (len != 0);
+    return 0;
+}
+
+/* next input byte macro for use inside lunpipe() and gunpipe() */
+#define NEXT() (have ? 0 : (have = in(indp, &next)), \
+                last = have ? (have--, (int)(*next++)) : -1)
+
+/* memory for gunpipe() and lunpipe() --
+   the first 256 entries of prefix[] and suffix[] are never used, could
+   have offset the index, but it's faster to waste the memory */
+unsigned char inbuf[SIZE];              /* input buffer */
+unsigned char outbuf[SIZE];             /* output buffer */
+unsigned short prefix[65536];           /* index to LZW prefix string */
+unsigned char suffix[65536];            /* one-character LZW suffix */
+unsigned char match[65280 + 2];         /* buffer for reversed match or gzip
+                                           32K sliding window */
+
+/* throw out what's left in the current bits byte buffer (this is a vestigial
+   aspect of the compressed data format derived from an implementation that
+   made use of a special VAX machine instruction!) */
+#define FLUSHCODE() \
+    do { \
+        left = 0; \
+        rem = 0; \
+        if (chunk > have) { \
+            chunk -= have; \
+            have = 0; \
+            if (NEXT() == -1) \
+                break; \
+            chunk--; \
+            if (chunk > have) { \
+                chunk = have = 0; \
+                break; \
+            } \
+        } \
+        have -= chunk; \
+        next += chunk; \
+        chunk = 0; \
+    } while (0)
+
+/* Decompress a compress (LZW) file from indp to outfile.  The compress magic
+   header (two bytes) has already been read and verified.  There are have bytes
+   of buffered input at next.  strm is used for passing error information back
+   to gunpipe().
+
+   lunpipe() will return Z_OK on success, Z_BUF_ERROR for an unexpected end of
+   file, read error, or write error (a write error indicated by strm->next_in
+   not equal to Z_NULL), or Z_DATA_ERROR for invalid input.
+ */
+local int lunpipe(unsigned have, z_const unsigned char *next, struct ind *indp,
+                  int outfile, z_stream *strm)
+{
+    int last;                   /* last byte read by NEXT(), or -1 if EOF */
+    unsigned chunk;             /* bytes left in current chunk */
+    int left;                   /* bits left in rem */
+    unsigned rem;               /* unused bits from input */
+    int bits;                   /* current bits per code */
+    unsigned code;              /* code, table traversal index */
+    unsigned mask;              /* mask for current bits codes */
+    int max;                    /* maximum bits per code for this stream */
+    unsigned flags;             /* compress flags, then block compress flag */
+    unsigned end;               /* last valid entry in prefix/suffix tables */
+    unsigned temp;              /* current code */
+    unsigned prev;              /* previous code */
+    unsigned final;             /* last character written for previous code */
+    unsigned stack;             /* next position for reversed string */
+    unsigned outcnt;            /* bytes in output buffer */
+    struct outd outd;           /* output structure */
+    unsigned char *p;
+
+    /* set up output */
+    outd.outfile = outfile;
+    outd.check = 0;
+
+    /* process remainder of compress header -- a flags byte */
+    flags = NEXT();
+    if (last == -1)
+        return Z_BUF_ERROR;
+    if (flags & 0x60) {
+        strm->msg = (char *)"unknown lzw flags set";
+        return Z_DATA_ERROR;
+    }
+    max = flags & 0x1f;
+    if (max < 9 || max > 16) {
+        strm->msg = (char *)"lzw bits out of range";
+        return Z_DATA_ERROR;
+    }
+    if (max == 9)                           /* 9 doesn't really mean 9 */
+        max = 10;
+    flags &= 0x80;                          /* true if block compress */
+
+    /* clear table */
+    bits = 9;
+    mask = 0x1ff;
+    end = flags ? 256 : 255;
+
+    /* set up: get first 9-bit code, which is the first decompressed byte, but
+       don't create a table entry until the next code */
+    if (NEXT() == -1)                       /* no compressed data is ok */
+        return Z_OK;
+    final = prev = (unsigned)last;          /* low 8 bits of code */
+    if (NEXT() == -1)                       /* missing a bit */
+        return Z_BUF_ERROR;
+    if (last & 1) {                         /* code must be < 256 */
+        strm->msg = (char *)"invalid lzw code";
+        return Z_DATA_ERROR;
+    }
+    rem = (unsigned)last >> 1;              /* remaining 7 bits */
+    left = 7;
+    chunk = bits - 2;                       /* 7 bytes left in this chunk */
+    outbuf[0] = (unsigned char)final;       /* write first decompressed byte */
+    outcnt = 1;
+
+    /* decode codes */
+    stack = 0;
+    for (;;) {
+        /* if the table will be full after this, increment the code size */
+        if (end >= mask && bits < max) {
+            FLUSHCODE();
+            bits++;
+            mask <<= 1;
+            mask++;
+        }
+
+        /* get a code of length bits */
+        if (chunk == 0)                     /* decrement chunk modulo bits */
+            chunk = bits;
+        code = rem;                         /* low bits of code */
+        if (NEXT() == -1) {                 /* EOF is end of compressed data */
+            /* write remaining buffered output */
+            if (outcnt && out(&outd, outbuf, outcnt)) {
+                strm->next_in = outbuf;     /* signal write error */
+                return Z_BUF_ERROR;
+            }
+            return Z_OK;
+        }
+        code += (unsigned)last << left;     /* middle (or high) bits of code */
+        left += 8;
+        chunk--;
+        if (bits > left) {                  /* need more bits */
+            if (NEXT() == -1)               /* can't end in middle of code */
+                return Z_BUF_ERROR;
+            code += (unsigned)last << left; /* high bits of code */
+            left += 8;
+            chunk--;
+        }
+        code &= mask;                       /* mask to current code length */
+        left -= bits;                       /* number of unused bits */
+        rem = (unsigned)last >> (8 - left); /* unused bits from last byte */
+
+        /* process clear code (256) */
+        if (code == 256 && flags) {
+            FLUSHCODE();
+            bits = 9;                       /* initialize bits and mask */
+            mask = 0x1ff;
+            end = 255;                      /* empty table */
+            continue;                       /* get next code */
+        }
+
+        /* special code to reuse last match */
+        temp = code;                        /* save the current code */
+        if (code > end) {
+            /* Be picky on the allowed code here, and make sure that the code
+               we drop through (prev) will be a valid index so that random
+               input does not cause an exception.  The code != end + 1 check is
+               empirically derived, and not checked in the original uncompress
+               code.  If this ever causes a problem, that check could be safely
+               removed.  Leaving this check in greatly improves gun's ability
+               to detect random or corrupted input after a compress header.
+               In any case, the prev > end check must be retained. */
+            if (code != end + 1 || prev > end) {
+                strm->msg = (char *)"invalid lzw code";
+                return Z_DATA_ERROR;
+            }
+            match[stack++] = (unsigned char)final;
+            code = prev;
+        }
+
+        /* walk through linked list to generate output in reverse order */
+        p = match + stack;
+        while (code >= 256) {
+            *p++ = suffix[code];
+            code = prefix[code];
+        }
+        stack = p - match;
+        match[stack++] = (unsigned char)code;
+        final = code;
+
+        /* link new table entry */
+        if (end < mask) {
+            end++;
+            prefix[end] = (unsigned short)prev;
+            suffix[end] = (unsigned char)final;
+        }
+
+        /* set previous code for next iteration */
+        prev = temp;
+
+        /* write output in forward order */
+        while (stack > SIZE - outcnt) {
+            while (outcnt < SIZE)
+                outbuf[outcnt++] = match[--stack];
+            if (out(&outd, outbuf, outcnt)) {
+                strm->next_in = outbuf; /* signal write error */
+                return Z_BUF_ERROR;
+            }
+            outcnt = 0;
+        }
+        p = match + stack;
+        do {
+            outbuf[outcnt++] = *--p;
+        } while (p > match);
+        stack = 0;
+
+        /* loop for next code with final and prev as the last match, rem and
+           left provide the first 0..7 bits of the next code, end is the last
+           valid table entry */
+    }
+}
+
+/* Decompress a gzip file from infile to outfile.  strm is assumed to have been
+   successfully initialized with inflateBackInit().  The input file may consist
+   of a series of gzip streams, in which case all of them will be decompressed
+   to the output file.  If outfile is -1, then the gzip stream(s) integrity is
+   checked and nothing is written.
+
+   The return value is a zlib error code: Z_MEM_ERROR if out of memory,
+   Z_DATA_ERROR if the header or the compressed data is invalid, or if the
+   trailer CRC-32 check or length doesn't match, Z_BUF_ERROR if the input ends
+   prematurely or a write error occurs, or Z_ERRNO if junk (not a another gzip
+   stream) follows a valid gzip stream.
+ */
+local int gunpipe(z_stream *strm, int infile, int outfile)
+{
+    int ret, first, last;
+    unsigned have, flags, len;
+    z_const unsigned char *next = NULL;
+    struct ind ind, *indp;
+    struct outd outd;
+
+    /* setup input buffer */
+    ind.infile = infile;
+    ind.inbuf = inbuf;
+    indp = &ind;
+
+    /* decompress concatenated gzip streams */
+    have = 0;                               /* no input data read in yet */
+    first = 1;                              /* looking for first gzip header */
+    strm->next_in = Z_NULL;                 /* so Z_BUF_ERROR means EOF */
+    for (;;) {
+        /* look for the two magic header bytes for a gzip stream */
+        if (NEXT() == -1) {
+            ret = Z_OK;
+            break;                          /* empty gzip stream is ok */
+        }
+        if (last != 31 || (NEXT() != 139 && last != 157)) {
+            strm->msg = (char *)"incorrect header check";
+            ret = first ? Z_DATA_ERROR : Z_ERRNO;
+            break;                          /* not a gzip or compress header */
+        }
+        first = 0;                          /* next non-header is junk */
+
+        /* process a compress (LZW) file -- can't be concatenated after this */
+        if (last == 157) {
+            ret = lunpipe(have, next, indp, outfile, strm);
+            break;
+        }
+
+        /* process remainder of gzip header */
+        ret = Z_BUF_ERROR;
+        if (NEXT() != 8) {                  /* only deflate method allowed */
+            if (last == -1) break;
+            strm->msg = (char *)"unknown compression method";
+            ret = Z_DATA_ERROR;
+            break;
+        }
+        flags = NEXT();                     /* header flags */
+        NEXT();                             /* discard mod time, xflgs, os */
+        NEXT();
+        NEXT();
+        NEXT();
+        NEXT();
+        NEXT();
+        if (last == -1) break;
+        if (flags & 0xe0) {
+            strm->msg = (char *)"unknown header flags set";
+            ret = Z_DATA_ERROR;
+            break;
+        }
+        if (flags & 4) {                    /* extra field */
+            len = NEXT();
+            len += (unsigned)(NEXT()) << 8;
+            if (last == -1) break;
+            while (len > have) {
+                len -= have;
+                have = 0;
+                if (NEXT() == -1) break;
+                len--;
+            }
+            if (last == -1) break;
+            have -= len;
+            next += len;
+        }
+        if (flags & 8)                      /* file name */
+            while (NEXT() != 0 && last != -1)
+                ;
+        if (flags & 16)                     /* comment */
+            while (NEXT() != 0 && last != -1)
+                ;
+        if (flags & 2) {                    /* header crc */
+            NEXT();
+            NEXT();
+        }
+        if (last == -1) break;
+
+        /* set up output */
+        outd.outfile = outfile;
+        outd.check = 1;
+        outd.crc = crc32(0L, Z_NULL, 0);
+        outd.total = 0;
+
+        /* decompress data to output */
+        strm->next_in = next;
+        strm->avail_in = have;
+        ret = inflateBack(strm, in, indp, out, &outd);
+        if (ret != Z_STREAM_END) break;
+        next = strm->next_in;
+        have = strm->avail_in;
+        strm->next_in = Z_NULL;             /* so Z_BUF_ERROR means EOF */
+
+        /* check trailer */
+        ret = Z_BUF_ERROR;
+        if (NEXT() != (int)(outd.crc & 0xff) ||
+            NEXT() != (int)((outd.crc >> 8) & 0xff) ||
+            NEXT() != (int)((outd.crc >> 16) & 0xff) ||
+            NEXT() != (int)((outd.crc >> 24) & 0xff)) {
+            /* crc error */
+            if (last != -1) {
+                strm->msg = (char *)"incorrect data check";
+                ret = Z_DATA_ERROR;
+            }
+            break;
+        }
+        if (NEXT() != (int)(outd.total & 0xff) ||
+            NEXT() != (int)((outd.total >> 8) & 0xff) ||
+            NEXT() != (int)((outd.total >> 16) & 0xff) ||
+            NEXT() != (int)((outd.total >> 24) & 0xff)) {
+            /* length error */
+            if (last != -1) {
+                strm->msg = (char *)"incorrect length check";
+                ret = Z_DATA_ERROR;
+            }
+            break;
+        }
+
+        /* go back and look for another gzip stream */
+    }
+
+    /* clean up and return */
+    return ret;
+}
+
+/* Copy file attributes, from -> to, as best we can.  This is best effort, so
+   no errors are reported.  The mode bits, including suid, sgid, and the sticky
+   bit are copied (if allowed), the owner's user id and group id are copied
+   (again if allowed), and the access and modify times are copied. */
+local void copymeta(char *from, char *to)
+{
+    struct stat was;
+    struct utimbuf when;
+
+    /* get all of from's Unix meta data, return if not a regular file */
+    if (stat(from, &was) != 0 || (was.st_mode & S_IFMT) != S_IFREG)
+        return;
+
+    /* set to's mode bits, ignore errors */
+    (void)chmod(to, was.st_mode & 07777);
+
+    /* copy owner's user and group, ignore errors */
+    (void)chown(to, was.st_uid, was.st_gid);
+
+    /* copy access and modify times, ignore errors */
+    when.actime = was.st_atime;
+    when.modtime = was.st_mtime;
+    (void)utime(to, &when);
+}
+
+/* Decompress the file inname to the file outnname, of if test is true, just
+   decompress without writing and check the gzip trailer for integrity.  If
+   inname is NULL or an empty string, read from stdin.  If outname is NULL or
+   an empty string, write to stdout.  strm is a pre-initialized inflateBack
+   structure.  When appropriate, copy the file attributes from inname to
+   outname.
+
+   gunzip() returns 1 if there is an out-of-memory error or an unexpected
+   return code from gunpipe().  Otherwise it returns 0.
+ */
+local int gunzip(z_stream *strm, char *inname, char *outname, int test)
+{
+    int ret;
+    int infile, outfile;
+
+    /* open files */
+    if (inname == NULL || *inname == 0) {
+        inname = "-";
+        infile = 0;     /* stdin */
+    }
+    else {
+        infile = open(inname, O_RDONLY, 0);
+        if (infile == -1) {
+            fprintf(stderr, "gun cannot open %s\n", inname);
+            return 0;
+        }
+    }
+    if (test)
+        outfile = -1;
+    else if (outname == NULL || *outname == 0) {
+        outname = "-";
+        outfile = 1;    /* stdout */
+    }
+    else {
+        outfile = open(outname, O_CREAT | O_TRUNC | O_WRONLY, 0666);
+        if (outfile == -1) {
+            close(infile);
+            fprintf(stderr, "gun cannot create %s\n", outname);
+            return 0;
+        }
+    }
+    errno = 0;
+
+    /* decompress */
+    ret = gunpipe(strm, infile, outfile);
+    if (outfile > 2) close(outfile);
+    if (infile > 2) close(infile);
+
+    /* interpret result */
+    switch (ret) {
+    case Z_OK:
+    case Z_ERRNO:
+        if (infile > 2 && outfile > 2) {
+            copymeta(inname, outname);          /* copy attributes */
+            unlink(inname);
+        }
+        if (ret == Z_ERRNO)
+            fprintf(stderr, "gun warning: trailing garbage ignored in %s\n",
+                    inname);
+        break;
+    case Z_DATA_ERROR:
+        if (outfile > 2) unlink(outname);
+        fprintf(stderr, "gun data error on %s: %s\n", inname, strm->msg);
+        break;
+    case Z_MEM_ERROR:
+        if (outfile > 2) unlink(outname);
+        fprintf(stderr, "gun out of memory error--aborting\n");
+        return 1;
+    case Z_BUF_ERROR:
+        if (outfile > 2) unlink(outname);
+        if (strm->next_in != Z_NULL) {
+            fprintf(stderr, "gun write error on %s: %s\n",
+                    outname, strerror(errno));
+        }
+        else if (errno) {
+            fprintf(stderr, "gun read error on %s: %s\n",
+                    inname, strerror(errno));
+        }
+        else {
+            fprintf(stderr, "gun unexpected end of file on %s\n",
+                    inname);
+        }
+        break;
+    default:
+        if (outfile > 2) unlink(outname);
+        fprintf(stderr, "gun internal error--aborting\n");
+        return 1;
+    }
+    return 0;
+}
+
+/* Process the gun command line arguments.  See the command syntax near the
+   beginning of this source file. */
+int main(int argc, char **argv)
+{
+    int ret, len, test;
+    char *outname;
+    unsigned char *window;
+    z_stream strm;
+
+    /* initialize inflateBack state for repeated use */
+    window = match;                         /* reuse LZW match buffer */
+    strm.zalloc = Z_NULL;
+    strm.zfree = Z_NULL;
+    strm.opaque = Z_NULL;
+    ret = inflateBackInit(&strm, 15, window);
+    if (ret != Z_OK) {
+        fprintf(stderr, "gun out of memory error--aborting\n");
+        return 1;
+    }
+
+    /* decompress each file to the same name with the suffix removed */
+    argc--;
+    argv++;
+    test = 0;
+    if (argc && strcmp(*argv, "-h") == 0) {
+        fprintf(stderr, "gun 1.6 (17 Jan 2010)\n");
+        fprintf(stderr, "Copyright (C) 2003-2010 Mark Adler\n");
+        fprintf(stderr, "usage: gun [-t] [file1.gz [file2.Z ...]]\n");
+        return 0;
+    }
+    if (argc && strcmp(*argv, "-t") == 0) {
+        test = 1;
+        argc--;
+        argv++;
+    }
+    if (argc)
+        do {
+            if (test)
+                outname = NULL;
+            else {
+                len = (int)strlen(*argv);
+                if (strcmp(*argv + len - 3, ".gz") == 0 ||
+                    strcmp(*argv + len - 3, "-gz") == 0)
+                    len -= 3;
+                else if (strcmp(*argv + len - 2, ".z") == 0 ||
+                    strcmp(*argv + len - 2, "-z") == 0 ||
+                    strcmp(*argv + len - 2, "_z") == 0 ||
+                    strcmp(*argv + len - 2, ".Z") == 0)
+                    len -= 2;
+                else {
+                    fprintf(stderr, "gun error: no gz type on %s--skipping\n",
+                            *argv);
+                    continue;
+                }
+                outname = malloc(len + 1);
+                if (outname == NULL) {
+                    fprintf(stderr, "gun out of memory error--aborting\n");
+                    ret = 1;
+                    break;
+                }
+                memcpy(outname, *argv, len);
+                outname[len] = 0;
+            }
+            ret = gunzip(&strm, *argv, outname, test);
+            if (outname != NULL) free(outname);
+            if (ret) break;
+        } while (argv++, --argc);
+    else
+        ret = gunzip(&strm, NULL, NULL, test);
+
+    /* clean up */
+    inflateBackEnd(&strm);
+    return ret;
+}
diff --git a/compat/zlib/examples/gzappend.c b/compat/zlib/examples/gzappend.c
new file mode 100644
index 0000000..23e93cf
--- /dev/null
+++ b/compat/zlib/examples/gzappend.c
@@ -0,0 +1,504 @@
+/* gzappend -- command to append to a gzip file
+
+  Copyright (C) 2003, 2012 Mark Adler, all rights reserved
+  version 1.2, 11 Oct 2012
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the author be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Mark Adler    madler@alumni.caltech.edu
+ */
+
+/*
+ * Change history:
+ *
+ * 1.0  19 Oct 2003     - First version
+ * 1.1   4 Nov 2003     - Expand and clarify some comments and notes
+ *                      - Add version and copyright to help
+ *                      - Send help to stdout instead of stderr
+ *                      - Add some preemptive typecasts
+ *                      - Add L to constants in lseek() calls
+ *                      - Remove some debugging information in error messages
+ *                      - Use new data_type definition for zlib 1.2.1
+ *                      - Simplify and unify file operations
+ *                      - Finish off gzip file in gztack()
+ *                      - Use deflatePrime() instead of adding empty blocks
+ *                      - Keep gzip file clean on appended file read errors
+ *                      - Use in-place rotate instead of auxiliary buffer
+ *                        (Why you ask?  Because it was fun to write!)
+ * 1.2  11 Oct 2012     - Fix for proper z_const usage
+ *                      - Check for input buffer malloc failure
+ */
+
+/*
+   gzappend takes a gzip file and appends to it, compressing files from the
+   command line or data from stdin.  The gzip file is written to directly, to
+   avoid copying that file, in case it's large.  Note that this results in the
+   unfriendly behavior that if gzappend fails, the gzip file is corrupted.
+
+   This program was written to illustrate the use of the new Z_BLOCK option of
+   zlib 1.2.x's inflate() function.  This option returns from inflate() at each
+   block boundary to facilitate locating and modifying the last block bit at
+   the start of the final deflate block.  Also whether using Z_BLOCK or not,
+   another required feature of zlib 1.2.x is that inflate() now provides the
+   number of unused bits in the last input byte used.  gzappend will not work
+   with versions of zlib earlier than 1.2.1.
+
+   gzappend first decompresses the gzip file internally, discarding all but
+   the last 32K of uncompressed data, and noting the location of the last block
+   bit and the number of unused bits in the last byte of the compressed data.
+   The gzip trailer containing the CRC-32 and length of the uncompressed data
+   is verified.  This trailer will be later overwritten.
+
+   Then the last block bit is cleared by seeking back in the file and rewriting
+   the byte that contains it.  Seeking forward, the last byte of the compressed
+   data is saved along with the number of unused bits to initialize deflate.
+
+   A deflate process is initialized, using the last 32K of the uncompressed
+   data from the gzip file to initialize the dictionary.  If the total
+   uncompressed data was less than 32K, then all of it is used to initialize
+   the dictionary.  The deflate output bit buffer is also initialized with the
+   last bits from the original deflate stream.  From here on, the data to
+   append is simply compressed using deflate, and written to the gzip file.
+   When that is complete, the new CRC-32 and uncompressed length are written
+   as the trailer of the gzip file.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include "zlib.h"
+
+#define local static
+#define LGCHUNK 14
+#define CHUNK (1U << LGCHUNK)
+#define DSIZE 32768U
+
+/* print an error message and terminate with extreme prejudice */
+local void bye(char *msg1, char *msg2)
+{
+    fprintf(stderr, "gzappend error: %s%s\n", msg1, msg2);
+    exit(1);
+}
+
+/* return the greatest common divisor of a and b using Euclid's algorithm,
+   modified to be fast when one argument much greater than the other, and
+   coded to avoid unnecessary swapping */
+local unsigned gcd(unsigned a, unsigned b)
+{
+    unsigned c;
+
+    while (a && b)
+        if (a > b) {
+            c = b;
+            while (a - c >= c)
+                c <<= 1;
+            a -= c;
+        }
+        else {
+            c = a;
+            while (b - c >= c)
+                c <<= 1;
+            b -= c;
+        }
+    return a + b;
+}
+
+/* rotate list[0..len-1] left by rot positions, in place */
+local void rotate(unsigned char *list, unsigned len, unsigned rot)
+{
+    unsigned char tmp;
+    unsigned cycles;
+    unsigned char *start, *last, *to, *from;
+
+    /* normalize rot and handle degenerate cases */
+    if (len < 2) return;
+    if (rot >= len) rot %= len;
+    if (rot == 0) return;
+
+    /* pointer to last entry in list */
+    last = list + (len - 1);
+
+    /* do simple left shift by one */
+    if (rot == 1) {
+        tmp = *list;
+        memmove(list, list + 1, len - 1);
+        *last = tmp;
+        return;
+    }
+
+    /* do simple right shift by one */
+    if (rot == len - 1) {
+        tmp = *last;
+        memmove(list + 1, list, len - 1);
+        *list = tmp;
+        return;
+    }
+
+    /* otherwise do rotate as a set of cycles in place */
+    cycles = gcd(len, rot);             /* number of cycles */
+    do {
+        start = from = list + cycles;   /* start index is arbitrary */
+        tmp = *from;                    /* save entry to be overwritten */
+        for (;;) {
+            to = from;                  /* next step in cycle */
+            from += rot;                /* go right rot positions */
+            if (from > last) from -= len;   /* (pointer better not wrap) */
+            if (from == start) break;   /* all but one shifted */
+            *to = *from;                /* shift left */
+        }
+        *to = tmp;                      /* complete the circle */
+    } while (--cycles);
+}
+
+/* structure for gzip file read operations */
+typedef struct {
+    int fd;                     /* file descriptor */
+    int size;                   /* 1 << size is bytes in buf */
+    unsigned left;              /* bytes available at next */
+    unsigned char *buf;         /* buffer */
+    z_const unsigned char *next;    /* next byte in buffer */
+    char *name;                 /* file name for error messages */
+} file;
+
+/* reload buffer */
+local int readin(file *in)
+{
+    int len;
+
+    len = read(in->fd, in->buf, 1 << in->size);
+    if (len == -1) bye("error reading ", in->name);
+    in->left = (unsigned)len;
+    in->next = in->buf;
+    return len;
+}
+
+/* read from file in, exit if end-of-file */
+local int readmore(file *in)
+{
+    if (readin(in) == 0) bye("unexpected end of ", in->name);
+    return 0;
+}
+
+#define read1(in) (in->left == 0 ? readmore(in) : 0, \
+                   in->left--, *(in->next)++)
+
+/* skip over n bytes of in */
+local void skip(file *in, unsigned n)
+{
+    unsigned bypass;
+
+    if (n > in->left) {
+        n -= in->left;
+        bypass = n & ~((1U << in->size) - 1);
+        if (bypass) {
+            if (lseek(in->fd, (off_t)bypass, SEEK_CUR) == -1)
+                bye("seeking ", in->name);
+            n -= bypass;
+        }
+        readmore(in);
+        if (n > in->left)
+            bye("unexpected end of ", in->name);
+    }
+    in->left -= n;
+    in->next += n;
+}
+
+/* read a four-byte unsigned integer, little-endian, from in */
+unsigned long read4(file *in)
+{
+    unsigned long val;
+
+    val = read1(in);
+    val += (unsigned)read1(in) << 8;
+    val += (unsigned long)read1(in) << 16;
+    val += (unsigned long)read1(in) << 24;
+    return val;
+}
+
+/* skip over gzip header */
+local void gzheader(file *in)
+{
+    int flags;
+    unsigned n;
+
+    if (read1(in) != 31 || read1(in) != 139) bye(in->name, " not a gzip file");
+    if (read1(in) != 8) bye("unknown compression method in", in->name);
+    flags = read1(in);
+    if (flags & 0xe0) bye("unknown header flags set in", in->name);
+    skip(in, 6);
+    if (flags & 4) {
+        n = read1(in);
+        n += (unsigned)(read1(in)) << 8;
+        skip(in, n);
+    }
+    if (flags & 8) while (read1(in) != 0) ;
+    if (flags & 16) while (read1(in) != 0) ;
+    if (flags & 2) skip(in, 2);
+}
+
+/* decompress gzip file "name", return strm with a deflate stream ready to
+   continue compression of the data in the gzip file, and return a file
+   descriptor pointing to where to write the compressed data -- the deflate
+   stream is initialized to compress using level "level" */
+local int gzscan(char *name, z_stream *strm, int level)
+{
+    int ret, lastbit, left, full;
+    unsigned have;
+    unsigned long crc, tot;
+    unsigned char *window;
+    off_t lastoff, end;
+    file gz;
+
+    /* open gzip file */
+    gz.name = name;
+    gz.fd = open(name, O_RDWR, 0);
+    if (gz.fd == -1) bye("cannot open ", name);
+    gz.buf = malloc(CHUNK);
+    if (gz.buf == NULL) bye("out of memory", "");
+    gz.size = LGCHUNK;
+    gz.left = 0;
+
+    /* skip gzip header */
+    gzheader(&gz);
+
+    /* prepare to decompress */
+    window = malloc(DSIZE);
+    if (window == NULL) bye("out of memory", "");
+    strm->zalloc = Z_NULL;
+    strm->zfree = Z_NULL;
+    strm->opaque = Z_NULL;
+    ret = inflateInit2(strm, -15);
+    if (ret != Z_OK) bye("out of memory", " or library mismatch");
+
+    /* decompress the deflate stream, saving append information */
+    lastbit = 0;
+    lastoff = lseek(gz.fd, 0L, SEEK_CUR) - gz.left;
+    left = 0;
+    strm->avail_in = gz.left;
+    strm->next_in = gz.next;
+    crc = crc32(0L, Z_NULL, 0);
+    have = full = 0;
+    do {
+        /* if needed, get more input */
+        if (strm->avail_in == 0) {
+            readmore(&gz);
+            strm->avail_in = gz.left;
+            strm->next_in = gz.next;
+        }
+
+        /* set up output to next available section of sliding window */
+        strm->avail_out = DSIZE - have;
+        strm->next_out = window + have;
+
+        /* inflate and check for errors */
+        ret = inflate(strm, Z_BLOCK);
+        if (ret == Z_STREAM_ERROR) bye("internal stream error!", "");
+        if (ret == Z_MEM_ERROR) bye("out of memory", "");
+        if (ret == Z_DATA_ERROR)
+            bye("invalid compressed data--format violated in", name);
+
+        /* update crc and sliding window pointer */
+        crc = crc32(crc, window + have, DSIZE - have - strm->avail_out);
+        if (strm->avail_out)
+            have = DSIZE - strm->avail_out;
+        else {
+            have = 0;
+            full = 1;
+        }
+
+        /* process end of block */
+        if (strm->data_type & 128) {
+            if (strm->data_type & 64)
+                left = strm->data_type & 0x1f;
+            else {
+                lastbit = strm->data_type & 0x1f;
+                lastoff = lseek(gz.fd, 0L, SEEK_CUR) - strm->avail_in;
+            }
+        }
+    } while (ret != Z_STREAM_END);
+    inflateEnd(strm);
+    gz.left = strm->avail_in;
+    gz.next = strm->next_in;
+
+    /* save the location of the end of the compressed data */
+    end = lseek(gz.fd, 0L, SEEK_CUR) - gz.left;
+
+    /* check gzip trailer and save total for deflate */
+    if (crc != read4(&gz))
+        bye("invalid compressed data--crc mismatch in ", name);
+    tot = strm->total_out;
+    if ((tot & 0xffffffffUL) != read4(&gz))
+        bye("invalid compressed data--length mismatch in", name);
+
+    /* if not at end of file, warn */
+    if (gz.left || readin(&gz))
+        fprintf(stderr,
+            "gzappend warning: junk at end of gzip file overwritten\n");
+
+    /* clear last block bit */
+    lseek(gz.fd, lastoff - (lastbit != 0), SEEK_SET);
+    if (read(gz.fd, gz.buf, 1) != 1) bye("reading after seek on ", name);
+    *gz.buf = (unsigned char)(*gz.buf ^ (1 << ((8 - lastbit) & 7)));
+    lseek(gz.fd, -1L, SEEK_CUR);
+    if (write(gz.fd, gz.buf, 1) != 1) bye("writing after seek to ", name);
+
+    /* if window wrapped, build dictionary from window by rotating */
+    if (full) {
+        rotate(window, DSIZE, have);
+        have = DSIZE;
+    }
+
+    /* set up deflate stream with window, crc, total_in, and leftover bits */
+    ret = deflateInit2(strm, level, Z_DEFLATED, -15, 8, Z_DEFAULT_STRATEGY);
+    if (ret != Z_OK) bye("out of memory", "");
+    deflateSetDictionary(strm, window, have);
+    strm->adler = crc;
+    strm->total_in = tot;
+    if (left) {
+        lseek(gz.fd, --end, SEEK_SET);
+        if (read(gz.fd, gz.buf, 1) != 1) bye("reading after seek on ", name);
+        deflatePrime(strm, 8 - left, *gz.buf);
+    }
+    lseek(gz.fd, end, SEEK_SET);
+
+    /* clean up and return */
+    free(window);
+    free(gz.buf);
+    return gz.fd;
+}
+
+/* append file "name" to gzip file gd using deflate stream strm -- if last
+   is true, then finish off the deflate stream at the end */
+local void gztack(char *name, int gd, z_stream *strm, int last)
+{
+    int fd, len, ret;
+    unsigned left;
+    unsigned char *in, *out;
+
+    /* open file to compress and append */
+    fd = 0;
+    if (name != NULL) {
+        fd = open(name, O_RDONLY, 0);
+        if (fd == -1)
+            fprintf(stderr, "gzappend warning: %s not found, skipping ...\n",
+                    name);
+    }
+
+    /* allocate buffers */
+    in = malloc(CHUNK);
+    out = malloc(CHUNK);
+    if (in == NULL || out == NULL) bye("out of memory", "");
+
+    /* compress input file and append to gzip file */
+    do {
+        /* get more input */
+        len = read(fd, in, CHUNK);
+        if (len == -1) {
+            fprintf(stderr,
+                    "gzappend warning: error reading %s, skipping rest ...\n",
+                    name);
+            len = 0;
+        }
+        strm->avail_in = (unsigned)len;
+        strm->next_in = in;
+        if (len) strm->adler = crc32(strm->adler, in, (unsigned)len);
+
+        /* compress and write all available output */
+        do {
+            strm->avail_out = CHUNK;
+            strm->next_out = out;
+            ret = deflate(strm, last && len == 0 ? Z_FINISH : Z_NO_FLUSH);
+            left = CHUNK - strm->avail_out;
+            while (left) {
+                len = write(gd, out + CHUNK - strm->avail_out - left, left);
+                if (len == -1) bye("writing gzip file", "");
+                left -= (unsigned)len;
+            }
+        } while (strm->avail_out == 0 && ret != Z_STREAM_END);
+    } while (len != 0);
+
+    /* write trailer after last entry */
+    if (last) {
+        deflateEnd(strm);
+        out[0] = (unsigned char)(strm->adler);
+        out[1] = (unsigned char)(strm->adler >> 8);
+        out[2] = (unsigned char)(strm->adler >> 16);
+        out[3] = (unsigned char)(strm->adler >> 24);
+        out[4] = (unsigned char)(strm->total_in);
+        out[5] = (unsigned char)(strm->total_in >> 8);
+        out[6] = (unsigned char)(strm->total_in >> 16);
+        out[7] = (unsigned char)(strm->total_in >> 24);
+        len = 8;
+        do {
+            ret = write(gd, out + 8 - len, len);
+            if (ret == -1) bye("writing gzip file", "");
+            len -= ret;
+        } while (len);
+        close(gd);
+    }
+
+    /* clean up and return */
+    free(out);
+    free(in);
+    if (fd > 0) close(fd);
+}
+
+/* process the compression level option if present, scan the gzip file, and
+   append the specified files, or append the data from stdin if no other file
+   names are provided on the command line -- the gzip file must be writable
+   and seekable */
+int main(int argc, char **argv)
+{
+    int gd, level;
+    z_stream strm;
+
+    /* ignore command name */
+    argc--; argv++;
+
+    /* provide usage if no arguments */
+    if (*argv == NULL) {
+        printf(
+            "gzappend 1.2 (11 Oct 2012) Copyright (C) 2003, 2012 Mark Adler\n"
+               );
+        printf(
+            "usage: gzappend [-level] file.gz [ addthis [ andthis ... ]]\n");
+        return 0;
+    }
+
+    /* set compression level */
+    level = Z_DEFAULT_COMPRESSION;
+    if (argv[0][0] == '-') {
+        if (argv[0][1] < '0' || argv[0][1] > '9' || argv[0][2] != 0)
+            bye("invalid compression level", "");
+        level = argv[0][1] - '0';
+        if (*++argv == NULL) bye("no gzip file name after options", "");
+    }
+
+    /* prepare to append to gzip file */
+    gd = gzscan(*argv++, &strm, level);
+
+    /* append files on command line, or from stdin if none */
+    if (*argv == NULL)
+        gztack(NULL, gd, &strm, 1);
+    else
+        do {
+            gztack(*argv, gd, &strm, argv[1] == NULL);
+        } while (*++argv != NULL);
+    return 0;
+}
diff --git a/compat/zlib/examples/gzjoin.c b/compat/zlib/examples/gzjoin.c
new file mode 100644
index 0000000..89e8098
--- /dev/null
+++ b/compat/zlib/examples/gzjoin.c
@@ -0,0 +1,449 @@
+/* gzjoin -- command to join gzip files into one gzip file
+
+  Copyright (C) 2004, 2005, 2012 Mark Adler, all rights reserved
+  version 1.2, 14 Aug 2012
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the author be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Mark Adler    madler@alumni.caltech.edu
+ */
+
+/*
+ * Change history:
+ *
+ * 1.0  11 Dec 2004     - First version
+ * 1.1  12 Jun 2005     - Changed ssize_t to long for portability
+ * 1.2  14 Aug 2012     - Clean up for z_const usage
+ */
+
+/*
+   gzjoin takes one or more gzip files on the command line and writes out a
+   single gzip file that will uncompress to the concatenation of the
+   uncompressed data from the individual gzip files.  gzjoin does this without
+   having to recompress any of the data and without having to calculate a new
+   crc32 for the concatenated uncompressed data.  gzjoin does however have to
+   decompress all of the input data in order to find the bits in the compressed
+   data that need to be modified to concatenate the streams.
+
+   gzjoin does not do an integrity check on the input gzip files other than
+   checking the gzip header and decompressing the compressed data.  They are
+   otherwise assumed to be complete and correct.
+
+   Each joint between gzip files removes at least 18 bytes of previous trailer
+   and subsequent header, and inserts an average of about three bytes to the
+   compressed data in order to connect the streams.  The output gzip file
+   has a minimal ten-byte gzip header with no file name or modification time.
+
+   This program was written to illustrate the use of the Z_BLOCK option of
+   inflate() and the crc32_combine() function.  gzjoin will not compile with
+   versions of zlib earlier than 1.2.3.
+ */
+
+#include <stdio.h>      /* fputs(), fprintf(), fwrite(), putc() */
+#include <stdlib.h>     /* exit(), malloc(), free() */
+#include <fcntl.h>      /* open() */
+#include <unistd.h>     /* close(), read(), lseek() */
+#include "zlib.h"
+    /* crc32(), crc32_combine(), inflateInit2(), inflate(), inflateEnd() */
+
+#define local static
+
+/* exit with an error (return a value to allow use in an expression) */
+local int bail(char *why1, char *why2)
+{
+    fprintf(stderr, "gzjoin error: %s%s, output incomplete\n", why1, why2);
+    exit(1);
+    return 0;
+}
+
+/* -- simple buffered file input with access to the buffer -- */
+
+#define CHUNK 32768         /* must be a power of two and fit in unsigned */
+
+/* bin buffered input file type */
+typedef struct {
+    char *name;             /* name of file for error messages */
+    int fd;                 /* file descriptor */
+    unsigned left;          /* bytes remaining at next */
+    unsigned char *next;    /* next byte to read */
+    unsigned char *buf;     /* allocated buffer of length CHUNK */
+} bin;
+
+/* close a buffered file and free allocated memory */
+local void bclose(bin *in)
+{
+    if (in != NULL) {
+        if (in->fd != -1)
+            close(in->fd);
+        if (in->buf != NULL)
+            free(in->buf);
+        free(in);
+    }
+}
+
+/* open a buffered file for input, return a pointer to type bin, or NULL on
+   failure */
+local bin *bopen(char *name)
+{
+    bin *in;
+
+    in = malloc(sizeof(bin));
+    if (in == NULL)
+        return NULL;
+    in->buf = malloc(CHUNK);
+    in->fd = open(name, O_RDONLY, 0);
+    if (in->buf == NULL || in->fd == -1) {
+        bclose(in);
+        return NULL;
+    }
+    in->left = 0;
+    in->next = in->buf;
+    in->name = name;
+    return in;
+}
+
+/* load buffer from file, return -1 on read error, 0 or 1 on success, with
+   1 indicating that end-of-file was reached */
+local int bload(bin *in)
+{
+    long len;
+
+    if (in == NULL)
+        return -1;
+    if (in->left != 0)
+        return 0;
+    in->next = in->buf;
+    do {
+        len = (long)read(in->fd, in->buf + in->left, CHUNK - in->left);
+        if (len < 0)
+            return -1;
+        in->left += (unsigned)len;
+    } while (len != 0 && in->left < CHUNK);
+    return len == 0 ? 1 : 0;
+}
+
+/* get a byte from the file, bail if end of file */
+#define bget(in) (in->left ? 0 : bload(in), \
+                  in->left ? (in->left--, *(in->next)++) : \
+                    bail("unexpected end of file on ", in->name))
+
+/* get a four-byte little-endian unsigned integer from file */
+local unsigned long bget4(bin *in)
+{
+    unsigned long val;
+
+    val = bget(in);
+    val += (unsigned long)(bget(in)) << 8;
+    val += (unsigned long)(bget(in)) << 16;
+    val += (unsigned long)(bget(in)) << 24;
+    return val;
+}
+
+/* skip bytes in file */
+local void bskip(bin *in, unsigned skip)
+{
+    /* check pointer */
+    if (in == NULL)
+        return;
+
+    /* easy case -- skip bytes in buffer */
+    if (skip <= in->left) {
+        in->left -= skip;
+        in->next += skip;
+        return;
+    }
+
+    /* skip what's in buffer, discard buffer contents */
+    skip -= in->left;
+    in->left = 0;
+
+    /* seek past multiples of CHUNK bytes */
+    if (skip > CHUNK) {
+        unsigned left;
+
+        left = skip & (CHUNK - 1);
+        if (left == 0) {
+            /* exact number of chunks: seek all the way minus one byte to check
+               for end-of-file with a read */
+            lseek(in->fd, skip - 1, SEEK_CUR);
+            if (read(in->fd, in->buf, 1) != 1)
+                bail("unexpected end of file on ", in->name);
+            return;
+        }
+
+        /* skip the integral chunks, update skip with remainder */
+        lseek(in->fd, skip - left, SEEK_CUR);
+        skip = left;
+    }
+
+    /* read more input and skip remainder */
+    bload(in);
+    if (skip > in->left)
+        bail("unexpected end of file on ", in->name);
+    in->left -= skip;
+    in->next += skip;
+}
+
+/* -- end of buffered input functions -- */
+
+/* skip the gzip header from file in */
+local void gzhead(bin *in)
+{
+    int flags;
+
+    /* verify gzip magic header and compression method */
+    if (bget(in) != 0x1f || bget(in) != 0x8b || bget(in) != 8)
+        bail(in->name, " is not a valid gzip file");
+
+    /* get and verify flags */
+    flags = bget(in);
+    if ((flags & 0xe0) != 0)
+        bail("unknown reserved bits set in ", in->name);
+
+    /* skip modification time, extra flags, and os */
+    bskip(in, 6);
+
+    /* skip extra field if present */
+    if (flags & 4) {
+        unsigned len;
+
+        len = bget(in);
+        len += (unsigned)(bget(in)) << 8;
+        bskip(in, len);
+    }
+
+    /* skip file name if present */
+    if (flags & 8)
+        while (bget(in) != 0)
+            ;
+
+    /* skip comment if present */
+    if (flags & 16)
+        while (bget(in) != 0)
+            ;
+
+    /* skip header crc if present */
+    if (flags & 2)
+        bskip(in, 2);
+}
+
+/* write a four-byte little-endian unsigned integer to out */
+local void put4(unsigned long val, FILE *out)
+{
+    putc(val & 0xff, out);
+    putc((val >> 8) & 0xff, out);
+    putc((val >> 16) & 0xff, out);
+    putc((val >> 24) & 0xff, out);
+}
+
+/* Load up zlib stream from buffered input, bail if end of file */
+local void zpull(z_streamp strm, bin *in)
+{
+    if (in->left == 0)
+        bload(in);
+    if (in->left == 0)
+        bail("unexpected end of file on ", in->name);
+    strm->avail_in = in->left;
+    strm->next_in = in->next;
+}
+
+/* Write header for gzip file to out and initialize trailer. */
+local void gzinit(unsigned long *crc, unsigned long *tot, FILE *out)
+{
+    fwrite("\x1f\x8b\x08\0\0\0\0\0\0\xff", 1, 10, out);
+    *crc = crc32(0L, Z_NULL, 0);
+    *tot = 0;
+}
+
+/* Copy the compressed data from name, zeroing the last block bit of the last
+   block if clr is true, and adding empty blocks as needed to get to a byte
+   boundary.  If clr is false, then the last block becomes the last block of
+   the output, and the gzip trailer is written.  crc and tot maintains the
+   crc and length (modulo 2^32) of the output for the trailer.  The resulting
+   gzip file is written to out.  gzinit() must be called before the first call
+   of gzcopy() to write the gzip header and to initialize crc and tot. */
+local void gzcopy(char *name, int clr, unsigned long *crc, unsigned long *tot,
+                  FILE *out)
+{
+    int ret;                /* return value from zlib functions */
+    int pos;                /* where the "last block" bit is in byte */
+    int last;               /* true if processing the last block */
+    bin *in;                /* buffered input file */
+    unsigned char *start;   /* start of compressed data in buffer */
+    unsigned char *junk;    /* buffer for uncompressed data -- discarded */
+    z_off_t len;            /* length of uncompressed data (support > 4 GB) */
+    z_stream strm;          /* zlib inflate stream */
+
+    /* open gzip file and skip header */
+    in = bopen(name);
+    if (in == NULL)
+        bail("could not open ", name);
+    gzhead(in);
+
+    /* allocate buffer for uncompressed data and initialize raw inflate
+       stream */
+    junk = malloc(CHUNK);
+    strm.zalloc = Z_NULL;
+    strm.zfree = Z_NULL;
+    strm.opaque = Z_NULL;
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit2(&strm, -15);
+    if (junk == NULL || ret != Z_OK)
+        bail("out of memory", "");
+
+    /* inflate and copy compressed data, clear last-block bit if requested */
+    len = 0;
+    zpull(&strm, in);
+    start = in->next;
+    last = start[0] & 1;
+    if (last && clr)
+        start[0] &= ~1;
+    strm.avail_out = 0;
+    for (;;) {
+        /* if input used and output done, write used input and get more */
+        if (strm.avail_in == 0 && strm.avail_out != 0) {
+            fwrite(start, 1, strm.next_in - start, out);
+            start = in->buf;
+            in->left = 0;
+            zpull(&strm, in);
+        }
+
+        /* decompress -- return early when end-of-block reached */
+        strm.avail_out = CHUNK;
+        strm.next_out = junk;
+        ret = inflate(&strm, Z_BLOCK);
+        switch (ret) {
+        case Z_MEM_ERROR:
+            bail("out of memory", "");
+        case Z_DATA_ERROR:
+            bail("invalid compressed data in ", in->name);
+        }
+
+        /* update length of uncompressed data */
+        len += CHUNK - strm.avail_out;
+
+        /* check for block boundary (only get this when block copied out) */
+        if (strm.data_type & 128) {
+            /* if that was the last block, then done */
+            if (last)
+                break;
+
+            /* number of unused bits in last byte */
+            pos = strm.data_type & 7;
+
+            /* find the next last-block bit */
+            if (pos != 0) {
+                /* next last-block bit is in last used byte */
+                pos = 0x100 >> pos;
+                last = strm.next_in[-1] & pos;
+                if (last && clr)
+                    in->buf[strm.next_in - in->buf - 1] &= ~pos;
+            }
+            else {
+                /* next last-block bit is in next unused byte */
+                if (strm.avail_in == 0) {
+                    /* don't have that byte yet -- get it */
+                    fwrite(start, 1, strm.next_in - start, out);
+                    start = in->buf;
+                    in->left = 0;
+                    zpull(&strm, in);
+                }
+                last = strm.next_in[0] & 1;
+                if (last && clr)
+                    in->buf[strm.next_in - in->buf] &= ~1;
+            }
+        }
+    }
+
+    /* update buffer with unused input */
+    in->left = strm.avail_in;
+    in->next = in->buf + (strm.next_in - in->buf);
+
+    /* copy used input, write empty blocks to get to byte boundary */
+    pos = strm.data_type & 7;
+    fwrite(start, 1, in->next - start - 1, out);
+    last = in->next[-1];
+    if (pos == 0 || !clr)
+        /* already at byte boundary, or last file: write last byte */
+        putc(last, out);
+    else {
+        /* append empty blocks to last byte */
+        last &= ((0x100 >> pos) - 1);       /* assure unused bits are zero */
+        if (pos & 1) {
+            /* odd -- append an empty stored block */
+            putc(last, out);
+            if (pos == 1)
+                putc(0, out);               /* two more bits in block header */
+            fwrite("\0\0\xff\xff", 1, 4, out);
+        }
+        else {
+            /* even -- append 1, 2, or 3 empty fixed blocks */
+            switch (pos) {
+            case 6:
+                putc(last | 8, out);
+                last = 0;
+            case 4:
+                putc(last | 0x20, out);
+                last = 0;
+            case 2:
+                putc(last | 0x80, out);
+                putc(0, out);
+            }
+        }
+    }
+
+    /* update crc and tot */
+    *crc = crc32_combine(*crc, bget4(in), len);
+    *tot += (unsigned long)len;
+
+    /* clean up */
+    inflateEnd(&strm);
+    free(junk);
+    bclose(in);
+
+    /* write trailer if this is the last gzip file */
+    if (!clr) {
+        put4(*crc, out);
+        put4(*tot, out);
+    }
+}
+
+/* join the gzip files on the command line, write result to stdout */
+int main(int argc, char **argv)
+{
+    unsigned long crc, tot;     /* running crc and total uncompressed length */
+
+    /* skip command name */
+    argc--;
+    argv++;
+
+    /* show usage if no arguments */
+    if (argc == 0) {
+        fputs("gzjoin usage: gzjoin f1.gz [f2.gz [f3.gz ...]] > fjoin.gz\n",
+              stderr);
+        return 0;
+    }
+
+    /* join gzip files on command line and write to stdout */
+    gzinit(&crc, &tot, stdout);
+    while (argc--)
+        gzcopy(*argv++, argc, &crc, &tot, stdout);
+
+    /* done */
+    return 0;
+}
diff --git a/compat/zlib/examples/gzlog.c b/compat/zlib/examples/gzlog.c
new file mode 100644
index 0000000..da1b02e
--- /dev/null
+++ b/compat/zlib/examples/gzlog.c
@@ -0,0 +1,1061 @@
+/*
+ * gzlog.c
+ * Copyright (C) 2004, 2008, 2012, 2016, 2019 Mark Adler, all rights reserved
+ * For conditions of distribution and use, see copyright notice in gzlog.h
+ * version 2.3, 25 May 2019
+ */
+
+/*
+   gzlog provides a mechanism for frequently appending short strings to a gzip
+   file that is efficient both in execution time and compression ratio.  The
+   strategy is to write the short strings in an uncompressed form to the end of
+   the gzip file, only compressing when the amount of uncompressed data has
+   reached a given threshold.
+
+   gzlog also provides protection against interruptions in the process due to
+   system crashes.  The status of the operation is recorded in an extra field
+   in the gzip file, and is only updated once the gzip file is brought to a
+   valid state.  The last data to be appended or compressed is saved in an
+   auxiliary file, so that if the operation is interrupted, it can be completed
+   the next time an append operation is attempted.
+
+   gzlog maintains another auxiliary file with the last 32K of data from the
+   compressed portion, which is preloaded for the compression of the subsequent
+   data.  This minimizes the impact to the compression ratio of appending.
+ */
+
+/*
+   Operations Concept:
+
+   Files (log name "foo"):
+   foo.gz -- gzip file with the complete log
+   foo.add -- last message to append or last data to compress
+   foo.dict -- dictionary of the last 32K of data for next compression
+   foo.temp -- temporary dictionary file for compression after this one
+   foo.lock -- lock file for reading and writing the other files
+   foo.repairs -- log file for log file recovery operations (not compressed)
+
+   gzip file structure:
+   - fixed-length (no file name) header with extra field (see below)
+   - compressed data ending initially with empty stored block
+   - uncompressed data filling out originally empty stored block and
+     subsequent stored blocks as needed (16K max each)
+   - gzip trailer
+   - no junk at end (no other gzip streams)
+
+   When appending data, the information in the first three items above plus the
+   foo.add file are sufficient to recover an interrupted append operation.  The
+   extra field has the necessary information to restore the start of the last
+   stored block and determine where to append the data in the foo.add file, as
+   well as the crc and length of the gzip data before the append operation.
+
+   The foo.add file is created before the gzip file is marked for append, and
+   deleted after the gzip file is marked as complete.  So if the append
+   operation is interrupted, the data to add will still be there.  If due to
+   some external force, the foo.add file gets deleted between when the append
+   operation was interrupted and when recovery is attempted, the gzip file will
+   still be restored, but without the appended data.
+
+   When compressing data, the information in the first two items above plus the
+   foo.add file are sufficient to recover an interrupted compress operation.
+   The extra field has the necessary information to find the end of the
+   compressed data, and contains both the crc and length of just the compressed
+   data and of the complete set of data including the contents of the foo.add
+   file.
+
+   Again, the foo.add file is maintained during the compress operation in case
+   of an interruption.  If in the unlikely event the foo.add file with the data
+   to be compressed is missing due to some external force, a gzip file with
+   just the previous compressed data will be reconstructed.  In this case, all
+   of the data that was to be compressed is lost (approximately one megabyte).
+   This will not occur if all that happened was an interruption of the compress
+   operation.
+
+   The third state that is marked is the replacement of the old dictionary with
+   the new dictionary after a compress operation.  Once compression is
+   complete, the gzip file is marked as being in the replace state.  This
+   completes the gzip file, so an interrupt after being so marked does not
+   result in recompression.  Then the dictionary file is replaced, and the gzip
+   file is marked as completed.  This state prevents the possibility of
+   restarting compression with the wrong dictionary file.
+
+   All three operations are wrapped by a lock/unlock procedure.  In order to
+   gain exclusive access to the log files, first a foo.lock file must be
+   exclusively created.  When all operations are complete, the lock is
+   released by deleting the foo.lock file.  If when attempting to create the
+   lock file, it already exists and the modify time of the lock file is more
+   than five minutes old (set by the PATIENCE define below), then the old
+   lock file is considered stale and deleted, and the exclusive creation of
+   the lock file is retried.  To assure that there are no false assessments
+   of the staleness of the lock file, the operations periodically touch the
+   lock file to update the modified date.
+
+   Following is the definition of the extra field with all of the information
+   required to enable the above append and compress operations and their
+   recovery if interrupted.  Multi-byte values are stored little endian
+   (consistent with the gzip format).  File pointers are eight bytes long.
+   The crc's and lengths for the gzip trailer are four bytes long.  (Note that
+   the length at the end of a gzip file is used for error checking only, and
+   for large files is actually the length modulo 2^32.)  The stored block
+   length is two bytes long.  The gzip extra field two-byte identification is
+   "ap" for append.  It is assumed that writing the extra field to the file is
+   an "atomic" operation.  That is, either all of the extra field is written
+   to the file, or none of it is, if the operation is interrupted right at the
+   point of updating the extra field.  This is a reasonable assumption, since
+   the extra field is within the first 52 bytes of the file, which is smaller
+   than any expected block size for a mass storage device (usually 512 bytes or
+   larger).
+
+   Extra field (35 bytes):
+   - Pointer to first stored block length -- this points to the two-byte length
+     of the first stored block, which is followed by the two-byte, one's
+     complement of that length.  The stored block length is preceded by the
+     three-bit header of the stored block, which is the actual start of the
+     stored block in the deflate format.  See the bit offset field below.
+   - Pointer to the last stored block length.  This is the same as above, but
+     for the last stored block of the uncompressed data in the gzip file.
+     Initially this is the same as the first stored block length pointer.
+     When the stored block gets to 16K (see the MAX_STORE define), then a new
+     stored block as added, at which point the last stored block length pointer
+     is different from the first stored block length pointer.  When they are
+     different, the first bit of the last stored block header is eight bits, or
+     one byte back from the block length.
+   - Compressed data crc and length.  This is the crc and length of the data
+     that is in the compressed portion of the deflate stream.  These are used
+     only in the event that the foo.add file containing the data to compress is
+     lost after a compress operation is interrupted.
+   - Total data crc and length.  This is the crc and length of all of the data
+     stored in the gzip file, compressed and uncompressed.  It is used to
+     reconstruct the gzip trailer when compressing, as well as when recovering
+     interrupted operations.
+   - Final stored block length.  This is used to quickly find where to append,
+     and allows the restoration of the original final stored block state when
+     an append operation is interrupted.
+   - First stored block start as the number of bits back from the final stored
+     block first length byte.  This value is in the range of 3..10, and is
+     stored as the low three bits of the final byte of the extra field after
+     subtracting three (0..7).  This allows the last-block bit of the stored
+     block header to be updated when a new stored block is added, for the case
+     when the first stored block and the last stored block are the same.  (When
+     they are different, the numbers of bits back is known to be eight.)  This
+     also allows for new compressed data to be appended to the old compressed
+     data in the compress operation, overwriting the previous first stored
+     block, or for the compressed data to be terminated and a valid gzip file
+     reconstructed on the off chance that a compression operation was
+     interrupted and the data to compress in the foo.add file was deleted.
+   - The operation in process.  This is the next two bits in the last byte (the
+     bits under the mask 0x18).  The are interpreted as 0: nothing in process,
+     1: append in process, 2: compress in process, 3: replace in process.
+   - The top three bits of the last byte in the extra field are reserved and
+     are currently set to zero.
+
+   Main procedure:
+   - Exclusively create the foo.lock file using the O_CREAT and O_EXCL modes of
+     the system open() call.  If the modify time of an existing lock file is
+     more than PATIENCE seconds old, then the lock file is deleted and the
+     exclusive create is retried.
+   - Load the extra field from the foo.gz file, and see if an operation was in
+     progress but not completed.  If so, apply the recovery procedure below.
+   - Perform the append procedure with the provided data.
+   - If the uncompressed data in the foo.gz file is 1MB or more, apply the
+     compress procedure.
+   - Delete the foo.lock file.
+
+   Append procedure:
+   - Put what to append in the foo.add file so that the operation can be
+     restarted if this procedure is interrupted.
+   - Mark the foo.gz extra field with the append operation in progress.
+   + Restore the original last-block bit and stored block length of the last
+     stored block from the information in the extra field, in case a previous
+     append operation was interrupted.
+   - Append the provided data to the last stored block, creating new stored
+     blocks as needed and updating the stored blocks last-block bits and
+     lengths.
+   - Update the crc and length with the new data, and write the gzip trailer.
+   - Write over the extra field (with a single write operation) with the new
+     pointers, lengths, and crc's, and mark the gzip file as not in process.
+     Though there is still a foo.add file, it will be ignored since nothing
+     is in process.  If a foo.add file is leftover from a previously
+     completed operation, it is truncated when writing new data to it.
+   - Delete the foo.add file.
+
+   Compress and replace procedures:
+   - Read all of the uncompressed data in the stored blocks in foo.gz and write
+     it to foo.add.  Also write foo.temp with the last 32K of that data to
+     provide a dictionary for the next invocation of this procedure.
+   - Rewrite the extra field marking foo.gz with a compression in process.
+   * If there is no data provided to compress (due to a missing foo.add file
+     when recovering), reconstruct and truncate the foo.gz file to contain
+     only the previous compressed data and proceed to the step after the next
+     one.  Otherwise ...
+   - Compress the data with the dictionary in foo.dict, and write to the
+     foo.gz file starting at the bit immediately following the last previously
+     compressed block.  If there is no foo.dict, proceed anyway with the
+     compression at slightly reduced efficiency.  (For the foo.dict file to be
+     missing requires some external failure beyond simply the interruption of
+     a compress operation.)  During this process, the foo.lock file is
+     periodically touched to assure that that file is not considered stale by
+     another process before we're done.  The deflation is terminated with a
+     non-last empty static block (10 bits long), that is then located and
+     written over by a last-bit-set empty stored block.
+   - Append the crc and length of the data in the gzip file (previously
+     calculated during the append operations).
+   - Write over the extra field with the updated stored block offsets, bits
+     back, crc's, and lengths, and mark foo.gz as in process for a replacement
+     of the dictionary.
+   @ Delete the foo.add file.
+   - Replace foo.dict with foo.temp.
+   - Write over the extra field, marking foo.gz as complete.
+
+   Recovery procedure:
+   - If not a replace recovery, read in the foo.add file, and provide that data
+     to the appropriate recovery below.  If there is no foo.add file, provide
+     a zero data length to the recovery.  In that case, the append recovery
+     restores the foo.gz to the previous compressed + uncompressed data state.
+     For the compress recovery, a missing foo.add file results in foo.gz being
+     restored to the previous compressed-only data state.
+   - Append recovery:
+     - Pick up append at + step above
+   - Compress recovery:
+     - Pick up compress at * step above
+   - Replace recovery:
+     - Pick up compress at @ step above
+   - Log the repair with a date stamp in foo.repairs
+ */
+
+#include <sys/types.h>
+#include <stdio.h>      /* rename, fopen, fprintf, fclose */
+#include <stdlib.h>     /* malloc, free */
+#include <string.h>     /* strlen, strrchr, strcpy, strncpy, strcmp */
+#include <fcntl.h>      /* open */
+#include <unistd.h>     /* lseek, read, write, close, unlink, sleep, */
+                        /* ftruncate, fsync */
+#include <errno.h>      /* errno */
+#include <time.h>       /* time, ctime */
+#include <sys/stat.h>   /* stat */
+#include <sys/time.h>   /* utimes */
+#include "zlib.h"       /* crc32 */
+
+#include "gzlog.h"      /* header for external access */
+
+#define local static
+typedef unsigned int uint;
+typedef unsigned long ulong;
+
+/* Macro for debugging to deterministically force recovery operations */
+#ifdef GZLOG_DEBUG
+    #include <setjmp.h>         /* longjmp */
+    jmp_buf gzlog_jump;         /* where to go back to */
+    int gzlog_bail = 0;         /* which point to bail at (1..8) */
+    int gzlog_count = -1;       /* number of times through to wait */
+#   define BAIL(n) do { if (n == gzlog_bail && gzlog_count-- == 0) \
+                            longjmp(gzlog_jump, gzlog_bail); } while (0)
+#else
+#   define BAIL(n)
+#endif
+
+/* how old the lock file can be in seconds before considering it stale */
+#define PATIENCE 300
+
+/* maximum stored block size in Kbytes -- must be in 1..63 */
+#define MAX_STORE 16
+
+/* number of stored Kbytes to trigger compression (must be >= 32 to allow
+   dictionary construction, and <= 204 * MAX_STORE, in order for >> 10 to
+   discard the stored block headers contribution of five bytes each) */
+#define TRIGGER 1024
+
+/* size of a deflate dictionary (this cannot be changed) */
+#define DICT 32768U
+
+/* values for the operation (2 bits) */
+#define NO_OP 0
+#define APPEND_OP 1
+#define COMPRESS_OP 2
+#define REPLACE_OP 3
+
+/* macros to extract little-endian integers from an unsigned byte buffer */
+#define PULL2(p) ((p)[0]+((uint)((p)[1])<<8))
+#define PULL4(p) (PULL2(p)+((ulong)PULL2(p+2)<<16))
+#define PULL8(p) (PULL4(p)+((off_t)PULL4(p+4)<<32))
+
+/* macros to store integers into a byte buffer in little-endian order */
+#define PUT2(p,a) do {(p)[0]=a;(p)[1]=(a)>>8;} while(0)
+#define PUT4(p,a) do {PUT2(p,a);PUT2(p+2,a>>16);} while(0)
+#define PUT8(p,a) do {PUT4(p,a);PUT4(p+4,a>>32);} while(0)
+
+/* internal structure for log information */
+#define LOGID "\106\035\172"    /* should be three non-zero characters */
+struct log {
+    char id[4];     /* contains LOGID to detect inadvertent overwrites */
+    int fd;         /* file descriptor for .gz file, opened read/write */
+    char *path;     /* allocated path, e.g. "/var/log/foo" or "foo" */
+    char *end;      /* end of path, for appending suffices such as ".gz" */
+    off_t first;    /* offset of first stored block first length byte */
+    int back;       /* location of first block id in bits back from first */
+    uint stored;    /* bytes currently in last stored block */
+    off_t last;     /* offset of last stored block first length byte */
+    ulong ccrc;     /* crc of compressed data */
+    ulong clen;     /* length (modulo 2^32) of compressed data */
+    ulong tcrc;     /* crc of total data */
+    ulong tlen;     /* length (modulo 2^32) of total data */
+    time_t lock;    /* last modify time of our lock file */
+};
+
+/* gzip header for gzlog */
+local unsigned char log_gzhead[] = {
+    0x1f, 0x8b,                 /* magic gzip id */
+    8,                          /* compression method is deflate */
+    4,                          /* there is an extra field (no file name) */
+    0, 0, 0, 0,                 /* no modification time provided */
+    0, 0xff,                    /* no extra flags, no OS specified */
+    39, 0, 'a', 'p', 35, 0      /* extra field with "ap" subfield */
+                                /* 35 is EXTRA, 39 is EXTRA + 4 */
+};
+
+#define HEAD sizeof(log_gzhead)     /* should be 16 */
+
+/* initial gzip extra field content (52 == HEAD + EXTRA + 1) */
+local unsigned char log_gzext[] = {
+    52, 0, 0, 0, 0, 0, 0, 0,    /* offset of first stored block length */
+    52, 0, 0, 0, 0, 0, 0, 0,    /* offset of last stored block length */
+    0, 0, 0, 0, 0, 0, 0, 0,     /* compressed data crc and length */
+    0, 0, 0, 0, 0, 0, 0, 0,     /* total data crc and length */
+    0, 0,                       /* final stored block data length */
+    5                           /* op is NO_OP, last bit 8 bits back */
+};
+
+#define EXTRA sizeof(log_gzext)     /* should be 35 */
+
+/* initial gzip data and trailer */
+local unsigned char log_gzbody[] = {
+    1, 0, 0, 0xff, 0xff,        /* empty stored block (last) */
+    0, 0, 0, 0,                 /* crc */
+    0, 0, 0, 0                  /* uncompressed length */
+};
+
+#define BODY sizeof(log_gzbody)
+
+/* Exclusively create foo.lock in order to negotiate exclusive access to the
+   foo.* files.  If the modify time of an existing lock file is greater than
+   PATIENCE seconds in the past, then consider the lock file to have been
+   abandoned, delete it, and try the exclusive create again.  Save the lock
+   file modify time for verification of ownership.  Return 0 on success, or -1
+   on failure, usually due to an access restriction or invalid path.  Note that
+   if stat() or unlink() fails, it may be due to another process noticing the
+   abandoned lock file a smidge sooner and deleting it, so those are not
+   flagged as an error. */
+local int log_lock(struct log *log)
+{
+    int fd;
+    struct stat st;
+
+    strcpy(log->end, ".lock");
+    while ((fd = open(log->path, O_CREAT | O_EXCL, 0644)) < 0) {
+        if (errno != EEXIST)
+            return -1;
+        if (stat(log->path, &st) == 0 && time(NULL) - st.st_mtime > PATIENCE) {
+            unlink(log->path);
+            continue;
+        }
+        sleep(2);       /* relinquish the CPU for two seconds while waiting */
+    }
+    close(fd);
+    if (stat(log->path, &st) == 0)
+        log->lock = st.st_mtime;
+    return 0;
+}
+
+/* Update the modify time of the lock file to now, in order to prevent another
+   task from thinking that the lock is stale.  Save the lock file modify time
+   for verification of ownership. */
+local void log_touch(struct log *log)
+{
+    struct stat st;
+
+    strcpy(log->end, ".lock");
+    utimes(log->path, NULL);
+    if (stat(log->path, &st) == 0)
+        log->lock = st.st_mtime;
+}
+
+/* Check the log file modify time against what is expected.  Return true if
+   this is not our lock.  If it is our lock, touch it to keep it. */
+local int log_check(struct log *log)
+{
+    struct stat st;
+
+    strcpy(log->end, ".lock");
+    if (stat(log->path, &st) || st.st_mtime != log->lock)
+        return 1;
+    log_touch(log);
+    return 0;
+}
+
+/* Unlock a previously acquired lock, but only if it's ours. */
+local void log_unlock(struct log *log)
+{
+    if (log_check(log))
+        return;
+    strcpy(log->end, ".lock");
+    unlink(log->path);
+    log->lock = 0;
+}
+
+/* Check the gzip header and read in the extra field, filling in the values in
+   the log structure.  Return op on success or -1 if the gzip header was not as
+   expected.  op is the current operation in progress last written to the extra
+   field.  This assumes that the gzip file has already been opened, with the
+   file descriptor log->fd. */
+local int log_head(struct log *log)
+{
+    int op;
+    unsigned char buf[HEAD + EXTRA];
+
+    if (lseek(log->fd, 0, SEEK_SET) < 0 ||
+        read(log->fd, buf, HEAD + EXTRA) != HEAD + EXTRA ||
+        memcmp(buf, log_gzhead, HEAD)) {
+        return -1;
+    }
+    log->first = PULL8(buf + HEAD);
+    log->last = PULL8(buf + HEAD + 8);
+    log->ccrc = PULL4(buf + HEAD + 16);
+    log->clen = PULL4(buf + HEAD + 20);
+    log->tcrc = PULL4(buf + HEAD + 24);
+    log->tlen = PULL4(buf + HEAD + 28);
+    log->stored = PULL2(buf + HEAD + 32);
+    log->back = 3 + (buf[HEAD + 34] & 7);
+    op = (buf[HEAD + 34] >> 3) & 3;
+    return op;
+}
+
+/* Write over the extra field contents, marking the operation as op.  Use fsync
+   to assure that the device is written to, and in the requested order.  This
+   operation, and only this operation, is assumed to be atomic in order to
+   assure that the log is recoverable in the event of an interruption at any
+   point in the process.  Return -1 if the write to foo.gz failed. */
+local int log_mark(struct log *log, int op)
+{
+    int ret;
+    unsigned char ext[EXTRA];
+
+    PUT8(ext, log->first);
+    PUT8(ext + 8, log->last);
+    PUT4(ext + 16, log->ccrc);
+    PUT4(ext + 20, log->clen);
+    PUT4(ext + 24, log->tcrc);
+    PUT4(ext + 28, log->tlen);
+    PUT2(ext + 32, log->stored);
+    ext[34] = log->back - 3 + (op << 3);
+    fsync(log->fd);
+    ret = lseek(log->fd, HEAD, SEEK_SET) < 0 ||
+          write(log->fd, ext, EXTRA) != EXTRA ? -1 : 0;
+    fsync(log->fd);
+    return ret;
+}
+
+/* Rewrite the last block header bits and subsequent zero bits to get to a byte
+   boundary, setting the last block bit if last is true, and then write the
+   remainder of the stored block header (length and one's complement).  Leave
+   the file pointer after the end of the last stored block data.  Return -1 if
+   there is a read or write failure on the foo.gz file */
+local int log_last(struct log *log, int last)
+{
+    int back, len, mask;
+    unsigned char buf[6];
+
+    /* determine the locations of the bytes and bits to modify */
+    back = log->last == log->first ? log->back : 8;
+    len = back > 8 ? 2 : 1;                 /* bytes back from log->last */
+    mask = 0x80 >> ((back - 1) & 7);        /* mask for block last-bit */
+
+    /* get the byte to modify (one or two back) into buf[0] -- don't need to
+       read the byte if the last-bit is eight bits back, since in that case
+       the entire byte will be modified */
+    buf[0] = 0;
+    if (back != 8 && (lseek(log->fd, log->last - len, SEEK_SET) < 0 ||
+                      read(log->fd, buf, 1) != 1))
+        return -1;
+
+    /* change the last-bit of the last stored block as requested -- note
+       that all bits above the last-bit are set to zero, per the type bits
+       of a stored block being 00 and per the convention that the bits to
+       bring the stream to a byte boundary are also zeros */
+    buf[1] = 0;
+    buf[2 - len] = (*buf & (mask - 1)) + (last ? mask : 0);
+
+    /* write the modified stored block header and lengths, move the file
+       pointer to after the last stored block data */
+    PUT2(buf + 2, log->stored);
+    PUT2(buf + 4, log->stored ^ 0xffff);
+    return lseek(log->fd, log->last - len, SEEK_SET) < 0 ||
+           write(log->fd, buf + 2 - len, len + 4) != len + 4 ||
+           lseek(log->fd, log->stored, SEEK_CUR) < 0 ? -1 : 0;
+}
+
+/* Append len bytes from data to the locked and open log file.  len may be zero
+   if recovering and no .add file was found.  In that case, the previous state
+   of the foo.gz file is restored.  The data is appended uncompressed in
+   deflate stored blocks.  Return -1 if there was an error reading or writing
+   the foo.gz file. */
+local int log_append(struct log *log, unsigned char *data, size_t len)
+{
+    uint put;
+    off_t end;
+    unsigned char buf[8];
+
+    /* set the last block last-bit and length, in case recovering an
+       interrupted append, then position the file pointer to append to the
+       block */
+    if (log_last(log, 1))
+        return -1;
+
+    /* append, adding stored blocks and updating the offset of the last stored
+       block as needed, and update the total crc and length */
+    while (len) {
+        /* append as much as we can to the last block */
+        put = (MAX_STORE << 10) - log->stored;
+        if (put > len)
+            put = (uint)len;
+        if (put) {
+            if (write(log->fd, data, put) != put)
+                return -1;
+            BAIL(1);
+            log->tcrc = crc32(log->tcrc, data, put);
+            log->tlen += put;
+            log->stored += put;
+            data += put;
+            len -= put;
+        }
+
+        /* if we need to, add a new empty stored block */
+        if (len) {
+            /* mark current block as not last */
+            if (log_last(log, 0))
+                return -1;
+
+            /* point to new, empty stored block */
+            log->last += 4 + log->stored + 1;
+            log->stored = 0;
+        }
+
+        /* mark last block as last, update its length */
+        if (log_last(log, 1))
+            return -1;
+        BAIL(2);
+    }
+
+    /* write the new crc and length trailer, and truncate just in case (could
+       be recovering from partial append with a missing foo.add file) */
+    PUT4(buf, log->tcrc);
+    PUT4(buf + 4, log->tlen);
+    if (write(log->fd, buf, 8) != 8 ||
+        (end = lseek(log->fd, 0, SEEK_CUR)) < 0 || ftruncate(log->fd, end))
+        return -1;
+
+    /* write the extra field, marking the log file as done, delete .add file */
+    if (log_mark(log, NO_OP))
+        return -1;
+    strcpy(log->end, ".add");
+    unlink(log->path);          /* ignore error, since may not exist */
+    return 0;
+}
+
+/* Replace the foo.dict file with the foo.temp file.  Also delete the foo.add
+   file, since the compress operation may have been interrupted before that was
+   done.  Returns 1 if memory could not be allocated, or -1 if reading or
+   writing foo.gz fails, or if the rename fails for some reason other than
+   foo.temp not existing.  foo.temp not existing is a permitted error, since
+   the replace operation may have been interrupted after the rename is done,
+   but before foo.gz is marked as complete. */
+local int log_replace(struct log *log)
+{
+    int ret;
+    char *dest;
+
+    /* delete foo.add file */
+    strcpy(log->end, ".add");
+    unlink(log->path);         /* ignore error, since may not exist */
+    BAIL(3);
+
+    /* rename foo.name to foo.dict, replacing foo.dict if it exists */
+    strcpy(log->end, ".dict");
+    dest = malloc(strlen(log->path) + 1);
+    if (dest == NULL)
+        return -2;
+    strcpy(dest, log->path);
+    strcpy(log->end, ".temp");
+    ret = rename(log->path, dest);
+    free(dest);
+    if (ret && errno != ENOENT)
+        return -1;
+    BAIL(4);
+
+    /* mark the foo.gz file as done */
+    return log_mark(log, NO_OP);
+}
+
+/* Compress the len bytes at data and append the compressed data to the
+   foo.gz deflate data immediately after the previous compressed data.  This
+   overwrites the previous uncompressed data, which was stored in foo.add
+   and is the data provided in data[0..len-1].  If this operation is
+   interrupted, it picks up at the start of this routine, with the foo.add
+   file read in again.  If there is no data to compress (len == 0), then we
+   simply terminate the foo.gz file after the previously compressed data,
+   appending a final empty stored block and the gzip trailer.  Return -1 if
+   reading or writing the log.gz file failed, or -2 if there was a memory
+   allocation failure. */
+local int log_compress(struct log *log, unsigned char *data, size_t len)
+{
+    int fd;
+    uint got, max;
+    ssize_t dict;
+    off_t end;
+    z_stream strm;
+    unsigned char buf[DICT];
+
+    /* compress and append compressed data */
+    if (len) {
+        /* set up for deflate, allocating memory */
+        strm.zalloc = Z_NULL;
+        strm.zfree = Z_NULL;
+        strm.opaque = Z_NULL;
+        if (deflateInit2(&strm, Z_DEFAULT_COMPRESSION, Z_DEFLATED, -15, 8,
+                         Z_DEFAULT_STRATEGY) != Z_OK)
+            return -2;
+
+        /* read in dictionary (last 32K of data that was compressed) */
+        strcpy(log->end, ".dict");
+        fd = open(log->path, O_RDONLY, 0);
+        if (fd >= 0) {
+            dict = read(fd, buf, DICT);
+            close(fd);
+            if (dict < 0) {
+                deflateEnd(&strm);
+                return -1;
+            }
+            if (dict)
+                deflateSetDictionary(&strm, buf, (uint)dict);
+        }
+        log_touch(log);
+
+        /* prime deflate with last bits of previous block, position write
+           pointer to write those bits and overwrite what follows */
+        if (lseek(log->fd, log->first - (log->back > 8 ? 2 : 1),
+                SEEK_SET) < 0 ||
+            read(log->fd, buf, 1) != 1 || lseek(log->fd, -1, SEEK_CUR) < 0) {
+            deflateEnd(&strm);
+            return -1;
+        }
+        deflatePrime(&strm, (8 - log->back) & 7, *buf);
+
+        /* compress, finishing with a partial non-last empty static block */
+        strm.next_in = data;
+        max = (((uint)0 - 1) >> 1) + 1; /* in case int smaller than size_t */
+        do {
+            strm.avail_in = len > max ? max : (uint)len;
+            len -= strm.avail_in;
+            do {
+                strm.avail_out = DICT;
+                strm.next_out = buf;
+                deflate(&strm, len ? Z_NO_FLUSH : Z_PARTIAL_FLUSH);
+                got = DICT - strm.avail_out;
+                if (got && write(log->fd, buf, got) != got) {
+                    deflateEnd(&strm);
+                    return -1;
+                }
+                log_touch(log);
+            } while (strm.avail_out == 0);
+        } while (len);
+        deflateEnd(&strm);
+        BAIL(5);
+
+        /* find start of empty static block -- scanning backwards the first one
+           bit is the second bit of the block, if the last byte is zero, then
+           we know the byte before that has a one in the top bit, since an
+           empty static block is ten bits long */
+        if ((log->first = lseek(log->fd, -1, SEEK_CUR)) < 0 ||
+            read(log->fd, buf, 1) != 1)
+            return -1;
+        log->first++;
+        if (*buf) {
+            log->back = 1;
+            while ((*buf & ((uint)1 << (8 - log->back++))) == 0)
+                ;       /* guaranteed to terminate, since *buf != 0 */
+        }
+        else
+            log->back = 10;
+
+        /* update compressed crc and length */
+        log->ccrc = log->tcrc;
+        log->clen = log->tlen;
+    }
+    else {
+        /* no data to compress -- fix up existing gzip stream */
+        log->tcrc = log->ccrc;
+        log->tlen = log->clen;
+    }
+
+    /* complete and truncate gzip stream */
+    log->last = log->first;
+    log->stored = 0;
+    PUT4(buf, log->tcrc);
+    PUT4(buf + 4, log->tlen);
+    if (log_last(log, 1) || write(log->fd, buf, 8) != 8 ||
+        (end = lseek(log->fd, 0, SEEK_CUR)) < 0 || ftruncate(log->fd, end))
+        return -1;
+    BAIL(6);
+
+    /* mark as being in the replace operation */
+    if (log_mark(log, REPLACE_OP))
+        return -1;
+
+    /* execute the replace operation and mark the file as done */
+    return log_replace(log);
+}
+
+/* log a repair record to the .repairs file */
+local void log_log(struct log *log, int op, char *record)
+{
+    time_t now;
+    FILE *rec;
+
+    now = time(NULL);
+    strcpy(log->end, ".repairs");
+    rec = fopen(log->path, "a");
+    if (rec == NULL)
+        return;
+    fprintf(rec, "%.24s %s recovery: %s\n", ctime(&now), op == APPEND_OP ?
+            "append" : (op == COMPRESS_OP ? "compress" : "replace"), record);
+    fclose(rec);
+    return;
+}
+
+/* Recover the interrupted operation op.  First read foo.add for recovering an
+   append or compress operation.  Return -1 if there was an error reading or
+   writing foo.gz or reading an existing foo.add, or -2 if there was a memory
+   allocation failure. */
+local int log_recover(struct log *log, int op)
+{
+    int fd, ret = 0;
+    unsigned char *data = NULL;
+    size_t len = 0;
+    struct stat st;
+
+    /* log recovery */
+    log_log(log, op, "start");
+
+    /* load foo.add file if expected and present */
+    if (op == APPEND_OP || op == COMPRESS_OP) {
+        strcpy(log->end, ".add");
+        if (stat(log->path, &st) == 0 && st.st_size) {
+            len = (size_t)(st.st_size);
+            if ((off_t)len != st.st_size ||
+                    (data = malloc(st.st_size)) == NULL) {
+                log_log(log, op, "allocation failure");
+                return -2;
+            }
+            if ((fd = open(log->path, O_RDONLY, 0)) < 0) {
+                free(data);
+                log_log(log, op, ".add file read failure");
+                return -1;
+            }
+            ret = (size_t)read(fd, data, len) != len;
+            close(fd);
+            if (ret) {
+                free(data);
+                log_log(log, op, ".add file read failure");
+                return -1;
+            }
+            log_log(log, op, "loaded .add file");
+        }
+        else
+            log_log(log, op, "missing .add file!");
+    }
+
+    /* recover the interrupted operation */
+    switch (op) {
+    case APPEND_OP:
+        ret = log_append(log, data, len);
+        break;
+    case COMPRESS_OP:
+        ret = log_compress(log, data, len);
+        break;
+    case REPLACE_OP:
+        ret = log_replace(log);
+    }
+
+    /* log status */
+    log_log(log, op, ret ? "failure" : "complete");
+
+    /* clean up */
+    if (data != NULL)
+        free(data);
+    return ret;
+}
+
+/* Close the foo.gz file (if open) and release the lock. */
+local void log_close(struct log *log)
+{
+    if (log->fd >= 0)
+        close(log->fd);
+    log->fd = -1;
+    log_unlock(log);
+}
+
+/* Open foo.gz, verify the header, and load the extra field contents, after
+   first creating the foo.lock file to gain exclusive access to the foo.*
+   files.  If foo.gz does not exist or is empty, then write the initial header,
+   extra, and body content of an empty foo.gz log file.  If there is an error
+   creating the lock file due to access restrictions, or an error reading or
+   writing the foo.gz file, or if the foo.gz file is not a proper log file for
+   this object (e.g. not a gzip file or does not contain the expected extra
+   field), then return true.  If there is an error, the lock is released.
+   Otherwise, the lock is left in place. */
+local int log_open(struct log *log)
+{
+    int op;
+
+    /* release open file resource if left over -- can occur if lock lost
+       between gzlog_open() and gzlog_write() */
+    if (log->fd >= 0)
+        close(log->fd);
+    log->fd = -1;
+
+    /* negotiate exclusive access */
+    if (log_lock(log) < 0)
+        return -1;
+
+    /* open the log file, foo.gz */
+    strcpy(log->end, ".gz");
+    log->fd = open(log->path, O_RDWR | O_CREAT, 0644);
+    if (log->fd < 0) {
+        log_close(log);
+        return -1;
+    }
+
+    /* if new, initialize foo.gz with an empty log, delete old dictionary */
+    if (lseek(log->fd, 0, SEEK_END) == 0) {
+        if (write(log->fd, log_gzhead, HEAD) != HEAD ||
+            write(log->fd, log_gzext, EXTRA) != EXTRA ||
+            write(log->fd, log_gzbody, BODY) != BODY) {
+            log_close(log);
+            return -1;
+        }
+        strcpy(log->end, ".dict");
+        unlink(log->path);
+    }
+
+    /* verify log file and load extra field information */
+    if ((op = log_head(log)) < 0) {
+        log_close(log);
+        return -1;
+    }
+
+    /* check for interrupted process and if so, recover */
+    if (op != NO_OP && log_recover(log, op)) {
+        log_close(log);
+        return -1;
+    }
+
+    /* touch the lock file to prevent another process from grabbing it */
+    log_touch(log);
+    return 0;
+}
+
+/* See gzlog.h for the description of the external methods below */
+gzlog *gzlog_open(char *path)
+{
+    size_t n;
+    struct log *log;
+
+    /* check arguments */
+    if (path == NULL || *path == 0)
+        return NULL;
+
+    /* allocate and initialize log structure */
+    log = malloc(sizeof(struct log));
+    if (log == NULL)
+        return NULL;
+    strcpy(log->id, LOGID);
+    log->fd = -1;
+
+    /* save path and end of path for name construction */
+    n = strlen(path);
+    log->path = malloc(n + 9);              /* allow for ".repairs" */
+    if (log->path == NULL) {
+        free(log);
+        return NULL;
+    }
+    strcpy(log->path, path);
+    log->end = log->path + n;
+
+    /* gain exclusive access and verify log file -- may perform a
+       recovery operation if needed */
+    if (log_open(log)) {
+        free(log->path);
+        free(log);
+        return NULL;
+    }
+
+    /* return pointer to log structure */
+    return log;
+}
+
+/* gzlog_compress() return values:
+    0: all good
+   -1: file i/o error (usually access issue)
+   -2: memory allocation failure
+   -3: invalid log pointer argument */
+int gzlog_compress(gzlog *logd)
+{
+    int fd, ret;
+    uint block;
+    size_t len, next;
+    unsigned char *data, buf[5];
+    struct log *log = logd;
+
+    /* check arguments */
+    if (log == NULL || strcmp(log->id, LOGID))
+        return -3;
+
+    /* see if we lost the lock -- if so get it again and reload the extra
+       field information (it probably changed), recover last operation if
+       necessary */
+    if (log_check(log) && log_open(log))
+        return -1;
+
+    /* create space for uncompressed data */
+    len = ((size_t)(log->last - log->first) & ~(((size_t)1 << 10) - 1)) +
+          log->stored;
+    if ((data = malloc(len)) == NULL)
+        return -2;
+
+    /* do statement here is just a cheap trick for error handling */
+    do {
+        /* read in the uncompressed data */
+        if (lseek(log->fd, log->first - 1, SEEK_SET) < 0)
+            break;
+        next = 0;
+        while (next < len) {
+            if (read(log->fd, buf, 5) != 5)
+                break;
+            block = PULL2(buf + 1);
+            if (next + block > len ||
+                read(log->fd, (char *)data + next, block) != block)
+                break;
+            next += block;
+        }
+        if (lseek(log->fd, 0, SEEK_CUR) != log->last + 4 + log->stored)
+            break;
+        log_touch(log);
+
+        /* write the uncompressed data to the .add file */
+        strcpy(log->end, ".add");
+        fd = open(log->path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+        if (fd < 0)
+            break;
+        ret = (size_t)write(fd, data, len) != len;
+        if (ret | close(fd))
+            break;
+        log_touch(log);
+
+        /* write the dictionary for the next compress to the .temp file */
+        strcpy(log->end, ".temp");
+        fd = open(log->path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+        if (fd < 0)
+            break;
+        next = DICT > len ? len : DICT;
+        ret = (size_t)write(fd, (char *)data + len - next, next) != next;
+        if (ret | close(fd))
+            break;
+        log_touch(log);
+
+        /* roll back to compressed data, mark the compress in progress */
+        log->last = log->first;
+        log->stored = 0;
+        if (log_mark(log, COMPRESS_OP))
+            break;
+        BAIL(7);
+
+        /* compress and append the data (clears mark) */
+        ret = log_compress(log, data, len);
+        free(data);
+        return ret;
+    } while (0);
+
+    /* broke out of do above on i/o error */
+    free(data);
+    return -1;
+}
+
+/* gzlog_write() return values:
+    0: all good
+   -1: file i/o error (usually access issue)
+   -2: memory allocation failure
+   -3: invalid log pointer argument */
+int gzlog_write(gzlog *logd, void *data, size_t len)
+{
+    int fd, ret;
+    struct log *log = logd;
+
+    /* check arguments */
+    if (log == NULL || strcmp(log->id, LOGID))
+        return -3;
+    if (data == NULL || len <= 0)
+        return 0;
+
+    /* see if we lost the lock -- if so get it again and reload the extra
+       field information (it probably changed), recover last operation if
+       necessary */
+    if (log_check(log) && log_open(log))
+        return -1;
+
+    /* create and write .add file */
+    strcpy(log->end, ".add");
+    fd = open(log->path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+    if (fd < 0)
+        return -1;
+    ret = (size_t)write(fd, data, len) != len;
+    if (ret | close(fd))
+        return -1;
+    log_touch(log);
+
+    /* mark log file with append in progress */
+    if (log_mark(log, APPEND_OP))
+        return -1;
+    BAIL(8);
+
+    /* append data (clears mark) */
+    if (log_append(log, data, len))
+        return -1;
+
+    /* check to see if it's time to compress -- if not, then done */
+    if (((log->last - log->first) >> 10) + (log->stored >> 10) < TRIGGER)
+        return 0;
+
+    /* time to compress */
+    return gzlog_compress(log);
+}
+
+/* gzlog_close() return values:
+    0: ok
+   -3: invalid log pointer argument */
+int gzlog_close(gzlog *logd)
+{
+    struct log *log = logd;
+
+    /* check arguments */
+    if (log == NULL || strcmp(log->id, LOGID))
+        return -3;
+
+    /* close the log file and release the lock */
+    log_close(log);
+
+    /* free structure and return */
+    if (log->path != NULL)
+        free(log->path);
+    strcpy(log->id, "bad");
+    free(log);
+    return 0;
+}
diff --git a/compat/zlib/examples/gzlog.h b/compat/zlib/examples/gzlog.h
new file mode 100644
index 0000000..4f05109
--- /dev/null
+++ b/compat/zlib/examples/gzlog.h
@@ -0,0 +1,91 @@
+/* gzlog.h
+  Copyright (C) 2004, 2008, 2012 Mark Adler, all rights reserved
+  version 2.2, 14 Aug 2012
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the author be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Mark Adler    madler@alumni.caltech.edu
+ */
+
+/* Version History:
+   1.0  26 Nov 2004  First version
+   2.0  25 Apr 2008  Complete redesign for recovery of interrupted operations
+                     Interface changed slightly in that now path is a prefix
+                     Compression now occurs as needed during gzlog_write()
+                     gzlog_write() now always leaves the log file as valid gzip
+   2.1   8 Jul 2012  Fix argument checks in gzlog_compress() and gzlog_write()
+   2.2  14 Aug 2012  Clean up signed comparisons
+ */
+
+/*
+   The gzlog object allows writing short messages to a gzipped log file,
+   opening the log file locked for small bursts, and then closing it.  The log
+   object works by appending stored (uncompressed) data to the gzip file until
+   1 MB has been accumulated.  At that time, the stored data is compressed, and
+   replaces the uncompressed data in the file.  The log file is truncated to
+   its new size at that time.  After each write operation, the log file is a
+   valid gzip file that can decompressed to recover what was written.
+
+   The gzlog operations can be interrupted at any point due to an application or
+   system crash, and the log file will be recovered the next time the log is
+   opened with gzlog_open().
+ */
+
+#ifndef GZLOG_H
+#define GZLOG_H
+
+/* gzlog object type */
+typedef void gzlog;
+
+/* Open a gzlog object, creating the log file if it does not exist.  Return
+   NULL on error.  Note that gzlog_open() could take a while to complete if it
+   has to wait to verify that a lock is stale (possibly for five minutes), or
+   if there is significant contention with other instantiations of this object
+   when locking the resource.  path is the prefix of the file names created by
+   this object.  If path is "foo", then the log file will be "foo.gz", and
+   other auxiliary files will be created and destroyed during the process:
+   "foo.dict" for a compression dictionary, "foo.temp" for a temporary (next)
+   dictionary, "foo.add" for data being added or compressed, "foo.lock" for the
+   lock file, and "foo.repairs" to log recovery operations performed due to
+   interrupted gzlog operations.  A gzlog_open() followed by a gzlog_close()
+   will recover a previously interrupted operation, if any. */
+gzlog *gzlog_open(char *path);
+
+/* Write to a gzlog object.  Return zero on success, -1 if there is a file i/o
+   error on any of the gzlog files (this should not happen if gzlog_open()
+   succeeded, unless the device has run out of space or leftover auxiliary
+   files have permissions or ownership that prevent their use), -2 if there is
+   a memory allocation failure, or -3 if the log argument is invalid (e.g. if
+   it was not created by gzlog_open()).  This function will write data to the
+   file uncompressed, until 1 MB has been accumulated, at which time that data
+   will be compressed.  The log file will be a valid gzip file upon successful
+   return. */
+int gzlog_write(gzlog *log, void *data, size_t len);
+
+/* Force compression of any uncompressed data in the log.  This should be used
+   sparingly, if at all.  The main application would be when a log file will
+   not be appended to again.  If this is used to compress frequently while
+   appending, it will both significantly increase the execution time and
+   reduce the compression ratio.  The return codes are the same as for
+   gzlog_write(). */
+int gzlog_compress(gzlog *log);
+
+/* Close a gzlog object.  Return zero on success, -3 if the log argument is
+   invalid.  The log object is freed, and so cannot be referenced again. */
+int gzlog_close(gzlog *log);
+
+#endif
diff --git a/compat/zlib/examples/gznorm.c b/compat/zlib/examples/gznorm.c
new file mode 100644
index 0000000..68e0a0f
--- /dev/null
+++ b/compat/zlib/examples/gznorm.c
@@ -0,0 +1,470 @@
+/* gznorm.c -- normalize a gzip stream
+ * Copyright (C) 2018 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ * Version 1.0  7 Oct 2018  Mark Adler */
+
+// gznorm takes a gzip stream, potentially containing multiple members, and
+// converts it to a gzip stream with a single member. In addition the gzip
+// header is normalized, removing the file name and time stamp, and setting the
+// other header contents (XFL, OS) to fixed values. gznorm does not recompress
+// the data, so it is fast, but no advantage is gained from the history that
+// could be available across member boundaries.
+
+#include <stdio.h>      // fread, fwrite, putc, fflush, ferror, fprintf,
+                        // vsnprintf, stdout, stderr, NULL, FILE
+#include <stdlib.h>     // malloc, free
+#include <string.h>     // strerror
+#include <errno.h>      // errno
+#include <stdarg.h>     // va_list, va_start, va_end
+#include "zlib.h"       // inflateInit2, inflate, inflateReset, inflateEnd,
+                        // z_stream, z_off_t, crc32_combine, Z_NULL, Z_BLOCK,
+                        // Z_OK, Z_STREAM_END, Z_BUF_ERROR, Z_DATA_ERROR,
+                        // Z_MEM_ERROR
+
+#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
+#  include <fcntl.h>
+#  include <io.h>
+#  define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
+#else
+#  define SET_BINARY_MODE(file)
+#endif
+
+#define local static
+
+// printf to an allocated string. Return the string, or NULL if the printf or
+// allocation fails.
+local char *aprintf(char *fmt, ...) {
+    // Get the length of the result of the printf.
+    va_list args;
+    va_start(args, fmt);
+    int len = vsnprintf(NULL, 0, fmt, args);
+    va_end(args);
+    if (len < 0)
+        return NULL;
+
+    // Allocate the required space and printf to it.
+    char *str = malloc(len + 1);
+    if (str == NULL)
+        return NULL;
+    va_start(args, fmt);
+    vsnprintf(str, len + 1, fmt, args);
+    va_end(args);
+    return str;
+}
+
+// Return with an error, putting an allocated error message in *err. Doing an
+// inflateEnd() on an already ended state, or one with state set to Z_NULL, is
+// permitted.
+#define BYE(...) \
+    do { \
+        inflateEnd(&strm); \
+        *err = aprintf(__VA_ARGS__); \
+        return 1; \
+    } while (0)
+
+// Chunk size for buffered reads and for decompression. Twice this many bytes
+// will be allocated on the stack by gzip_normalize(). Must fit in an unsigned.
+#define CHUNK 16384
+
+// Read a gzip stream from in and write an equivalent normalized gzip stream to
+// out. If given no input, an empty gzip stream will be written. If successful,
+// 0 is returned, and *err is set to NULL. On error, 1 is returned, where the
+// details of the error are returned in *err, a pointer to an allocated string.
+//
+// The input may be a stream with multiple gzip members, which is converted to
+// a single gzip member on the output. Each gzip member is decompressed at the
+// level of deflate blocks. This enables clearing the last-block bit, shifting
+// the compressed data to concatenate to the previous member's compressed data,
+// which can end at an arbitrary bit boundary, and identifying stored blocks in
+// order to resynchronize those to byte boundaries. The deflate compressed data
+// is terminated with a 10-bit empty fixed block. If any members on the input
+// end with a 10-bit empty fixed block, then that block is excised from the
+// stream. This avoids appending empty fixed blocks for every normalization,
+// and assures that gzip_normalize applied a second time will not change the
+// input. The pad bits after stored block headers and after the final deflate
+// block are all forced to zeros.
+local int gzip_normalize(FILE *in, FILE *out, char **err) {
+    // initialize the inflate engine to process a gzip member
+    z_stream strm;
+    strm.zalloc = Z_NULL;
+    strm.zfree = Z_NULL;
+    strm.opaque = Z_NULL;
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    if (inflateInit2(&strm, 15 + 16) != Z_OK)
+        BYE("out of memory");
+
+    // State while processing the input gzip stream.
+    enum {              // BETWEEN -> HEAD -> BLOCK -> TAIL -> BETWEEN -> ...
+        BETWEEN,        // between gzip members (must end in this state)
+        HEAD,           // reading a gzip header
+        BLOCK,          // reading deflate blocks
+        TAIL            // reading a gzip trailer
+    } state = BETWEEN;              // current component being processed
+    unsigned long crc = 0;          // accumulated CRC of uncompressed data
+    unsigned long len = 0;          // accumulated length of uncompressed data
+    unsigned long buf = 0;          // deflate stream bit buffer of num bits
+    int num = 0;                    // number of bits in buf (at bottom)
+
+    // Write a canonical gzip header (no mod time, file name, comment, extra
+    // block, or extra flags, and OS is marked as unknown).
+    fwrite("\x1f\x8b\x08\0\0\0\0\0\0\xff", 1, 10, out);
+
+    // Process the gzip stream from in until reaching the end of the input,
+    // encountering invalid input, or experiencing an i/o error.
+    int more;                       // true if not at the end of the input
+    do {
+        // State inside this loop.
+        unsigned char *put;         // next input buffer location to process
+        int prev;                   // number of bits from previous block in
+                                    // the bit buffer, or -1 if not at the
+                                    // start of a block
+        unsigned long long memb;    // uncompressed length of member
+        size_t tail;                // number of trailer bytes read (0..8)
+        unsigned long part;         // accumulated trailer component
+
+        // Get the next chunk of input from in.
+        unsigned char dat[CHUNK];
+        strm.avail_in = fread(dat, 1, CHUNK, in);
+        if (strm.avail_in == 0)
+            break;
+        more = strm.avail_in == CHUNK;
+        strm.next_in = put = dat;
+
+        // Run that chunk of input through the inflate engine to exhaustion.
+        do {
+            // At this point it is assured that strm.avail_in > 0.
+
+            // Inflate until the end of a gzip component (header, deflate
+            // block, trailer) is reached, or until all of the chunk is
+            // consumed. The resulting decompressed data is discarded, though
+            // the total size of the decompressed data in each member is
+            // tracked, for the calculation of the total CRC.
+            do {
+                // inflate and handle any errors
+                unsigned char scrap[CHUNK];
+                strm.avail_out = CHUNK;
+                strm.next_out = scrap;
+                int ret = inflate(&strm, Z_BLOCK);
+                if (ret == Z_MEM_ERROR)
+                    BYE("out of memory");
+                if (ret == Z_DATA_ERROR)
+                    BYE("input invalid: %s", strm.msg);
+                if (ret != Z_OK && ret != Z_BUF_ERROR && ret != Z_STREAM_END)
+                    BYE("internal error");
+
+                // Update the number of uncompressed bytes generated in this
+                // member. The actual count (not modulo 2^32) is required to
+                // correctly compute the total CRC.
+                unsigned got = CHUNK - strm.avail_out;
+                memb += got;
+                if (memb < got)
+                    BYE("overflow error");
+
+                // Continue to process this chunk until it is consumed, or
+                // until the end of a component (header, deflate block, or
+                // trailer) is reached.
+            } while (strm.avail_out == 0 && (strm.data_type & 0x80) == 0);
+
+            // Since strm.avail_in was > 0 for the inflate call, some input was
+            // just consumed. It is therefore assured that put < strm.next_in.
+
+            // Disposition the consumed component or part of a component.
+            switch (state) {
+                case BETWEEN:
+                    state = HEAD;
+                    // Fall through to HEAD when some or all of the header is
+                    // processed.
+
+                case HEAD:
+                    // Discard the header.
+                    if (strm.data_type & 0x80) {
+                        // End of header reached -- deflate blocks follow.
+                        put = strm.next_in;
+                        prev = num;
+                        memb = 0;
+                        state = BLOCK;
+                    }
+                    break;
+
+                case BLOCK:
+                    // Copy the deflate stream to the output, but with the
+                    // last-block-bit cleared. Re-synchronize stored block
+                    // headers to the output byte boundaries. The bytes at
+                    // put..strm.next_in-1 is the compressed data that has been
+                    // processed and is ready to be copied to the output.
+
+                    // At this point, it is assured that new compressed data is
+                    // available, i.e., put < strm.next_in. If prev is -1, then
+                    // that compressed data starts in the middle of a deflate
+                    // block. If prev is not -1, then the bits in the bit
+                    // buffer, possibly combined with the bits in *put, contain
+                    // the three-bit header of the new deflate block. In that
+                    // case, prev is the number of bits from the previous block
+                    // that remain in the bit buffer. Since num is the number
+                    // of bits in the bit buffer, we have that num - prev is
+                    // the number of bits from the new block currently in the
+                    // bit buffer.
+
+                    // If strm.data_type & 0xc0 is 0x80, then the last byte of
+                    // the available compressed data includes the last bits of
+                    // the end of a deflate block. In that case, that last byte
+                    // also has strm.data_type & 0x1f bits of the next deflate
+                    // block, in the range 0..7. If strm.data_type & 0xc0 is
+                    // 0xc0, then the last byte of the compressed data is the
+                    // end of the deflate stream, followed by strm.data_type &
+                    // 0x1f pad bits, also in the range 0..7.
+
+                    // Set bits to the number of bits not yet consumed from the
+                    // last byte. If we are at the end of the block, bits is
+                    // either the number of bits in the last byte belonging to
+                    // the next block, or the number of pad bits after the
+                    // final block. In either of those cases, bits is in the
+                    // range 0..7.
+                    ;                   // (required due to C syntax oddity)
+                    int bits = strm.data_type & 0x1f;
+
+                    if (prev != -1) {
+                        // We are at the start of a new block. Clear the last
+                        // block bit, and check for special cases. If it is a
+                        // stored block, then emit the header and pad to the
+                        // next byte boundary. If it is a final, empty fixed
+                        // block, then excise it.
+
+                        // Some or all of the three header bits for this block
+                        // may already be in the bit buffer. Load any remaining
+                        // header bits into the bit buffer.
+                        if (num - prev < 3) {
+                            buf += (unsigned long)*put++ << num;
+                            num += 8;
+                        }
+
+                        // Set last to have a 1 in the position of the last
+                        // block bit in the bit buffer.
+                        unsigned long last = (unsigned long)1 << prev;
+
+                        if (((buf >> prev) & 7) == 3) {
+                            // This is a final fixed block. Load at least ten
+                            // bits from this block, including the header, into
+                            // the bit buffer. We already have at least three,
+                            // so at most one more byte needs to be loaded.
+                            if (num - prev < 10) {
+                                if (put == strm.next_in)
+                                    // Need to go get and process more input.
+                                    // We'll end up back here to finish this.
+                                    break;
+                                buf += (unsigned long)*put++ << num;
+                                num += 8;
+                            }
+                            if (((buf >> prev) & 0x3ff) == 3) {
+                                // That final fixed block is empty. Delete it
+                                // to avoid adding an empty block every time a
+                                // gzip stream is normalized.
+                                num = prev;
+                                buf &= last - 1;    // zero the pad bits
+                            }
+                        }
+                        else if (((buf >> prev) & 6) == 0) {
+                            // This is a stored block. Flush to the next
+                            // byte boundary after the three-bit header.
+                            num = (prev + 10) & ~7;
+                            buf &= last - 1;        // zero the pad bits
+                        }
+
+                        // Clear the last block bit.
+                        buf &= ~last;
+
+                        // Write out complete bytes in the bit buffer.
+                        while (num >= 8) {
+                            putc(buf, out);
+                            buf >>= 8;
+                            num -= 8;
+                        }
+
+                        // If no more bytes left to process, then we have
+                        // consumed the byte that had bits from the next block.
+                        if (put == strm.next_in)
+                            bits = 0;
+                    }
+
+                    // We are done handling the deflate block header. Now copy
+                    // all or almost all of the remaining compressed data that
+                    // has been processed so far. Don't copy one byte at the
+                    // end if it contains bits from the next deflate block or
+                    // pad bits at the end of a deflate block.
+
+                    // mix is 1 if we are at the end of a deflate block, and if
+                    // some of the bits in the last byte follow this block. mix
+                    // is 0 if we are in the middle of a deflate block, if the
+                    // deflate block ended on a byte boundary, or if all of the
+                    // compressed data processed so far has been consumed.
+                    int mix = (strm.data_type & 0x80) && bits;
+
+                    // Copy all of the processed compressed data to the output,
+                    // except for the last byte if it contains bits from the
+                    // next deflate block or pad bits at the end of the deflate
+                    // stream. Copy the data after shifting in num bits from
+                    // buf in front of it, leaving num bits from the end of the
+                    // compressed data in buf when done.
+                    unsigned char *end = strm.next_in - mix;
+                    if (put < end) {
+                        if (num)
+                            // Insert num bits from buf before the data being
+                            // copied.
+                            do {
+                                buf += (unsigned)(*put++) << num;
+                                putc(buf, out);
+                                buf >>= 8;
+                            } while (put < end);
+                        else {
+                            // No shifting needed -- write directly.
+                            fwrite(put, 1, end - put, out);
+                            put = end;
+                        }
+                    }
+
+                    // Process the last processed byte if it wasn't written.
+                    if (mix) {
+                        // Load the last byte into the bit buffer.
+                        buf += (unsigned)(*put++) << num;
+                        num += 8;
+
+                        if (strm.data_type & 0x40) {
+                            // We are at the end of the deflate stream and
+                            // there are bits pad bits. Discard the pad bits
+                            // and write a byte to the output, if available.
+                            // Leave the num bits left over in buf to prepend
+                            // to the next deflate stream.
+                            num -= bits;
+                            if (num >= 8) {
+                                putc(buf, out);
+                                num -= 8;
+                                buf >>= 8;
+                            }
+
+                            // Force the pad bits in the bit buffer to zeros.
+                            buf &= ((unsigned long)1 << num) - 1;
+
+                            // Don't need to set prev here since going to TAIL.
+                        }
+                        else
+                            // At the end of an internal deflate block. Leave
+                            // the last byte in the bit buffer to examine on
+                            // the next entry to BLOCK, when more bits from the
+                            // next block will be available.
+                            prev = num - bits;      // number of bits in buffer
+                                                    // from current block
+                    }
+
+                    // Don't have a byte left over, so we are in the middle of
+                    // a deflate block, or the deflate block ended on a byte
+                    // boundary. Set prev appropriately for the next entry into
+                    // BLOCK.
+                    else if (strm.data_type & 0x80)
+                        // The block ended on a byte boundary, so no header
+                        // bits are in the bit buffer.
+                        prev = num;
+                    else
+                        // In the middle of a deflate block, so no header here.
+                        prev = -1;
+
+                    // Check for the end of the deflate stream.
+                    if ((strm.data_type & 0xc0) == 0xc0) {
+                        // That ends the deflate stream on the input side, the
+                        // pad bits were discarded, and any remaining bits from
+                        // the last block in the stream are saved in the bit
+                        // buffer to prepend to the next stream. Process the
+                        // gzip trailer next.
+                        tail = 0;
+                        part = 0;
+                        state = TAIL;
+                    }
+                    break;
+
+                case TAIL:
+                    // Accumulate available trailer bytes to update the total
+                    // CRC and the total uncompressed length.
+                    do {
+                        part = (part >> 8) + ((unsigned long)(*put++) << 24);
+                        tail++;
+                        if (tail == 4) {
+                            // Update the total CRC.
+                            z_off_t len2 = memb;
+                            if (len2 < 0 || (unsigned long long)len2 != memb)
+                                BYE("overflow error");
+                            crc = crc ? crc32_combine(crc, part, len2) : part;
+                            part = 0;
+                        }
+                        else if (tail == 8) {
+                            // Update the total uncompressed length. (It's ok
+                            // if this sum is done modulo 2^32.)
+                            len += part;
+
+                            // At the end of a member. Set up to inflate an
+                            // immediately following gzip member. (If we made
+                            // it this far, then the trailer was valid.)
+                            if (inflateReset(&strm) != Z_OK)
+                                BYE("internal error");
+                            state = BETWEEN;
+                            break;
+                        }
+                    } while (put < strm.next_in);
+                    break;
+            }
+
+            // Process the input buffer until completely consumed.
+        } while (strm.avail_in > 0);
+
+        // Process input until end of file, invalid input, or i/o error.
+    } while (more);
+
+    // Done with the inflate engine.
+    inflateEnd(&strm);
+
+    // Verify the validity of the input.
+    if (state != BETWEEN)
+        BYE("input invalid: incomplete gzip stream");
+
+    // Write the remaining deflate stream bits, followed by a terminating
+    // deflate fixed block.
+    buf += (unsigned long)3 << num;
+    putc(buf, out);
+    putc(buf >> 8, out);
+    if (num > 6)
+        putc(0, out);
+
+    // Write the gzip trailer, which is the CRC and the uncompressed length
+    // modulo 2^32, both in little-endian order.
+    putc(crc, out);
+    putc(crc >> 8, out);
+    putc(crc >> 16, out);
+    putc(crc >> 24, out);
+    putc(len, out);
+    putc(len >> 8, out);
+    putc(len >> 16, out);
+    putc(len >> 24, out);
+    fflush(out);
+
+    // Check for any i/o errors.
+    if (ferror(in) || ferror(out))
+        BYE("i/o error: %s", strerror(errno));
+
+    // All good!
+    *err = NULL;
+    return 0;
+}
+
+// Normalize the gzip stream on stdin, writing the result to stdout.
+int main(void) {
+    // Avoid end-of-line conversions on evil operating systems.
+    SET_BINARY_MODE(stdin);
+    SET_BINARY_MODE(stdout);
+
+    // Normalize from stdin to stdout, returning 1 on error, 0 if ok.
+    char *err;
+    int ret = gzip_normalize(stdin, stdout, &err);
+    if (ret)
+        fprintf(stderr, "gznorm error: %s\n", err);
+    free(err);
+    return ret;
+}
diff --git a/compat/zlib/examples/zlib_how.html b/compat/zlib/examples/zlib_how.html
new file mode 100644
index 0000000..43271b9
--- /dev/null
+++ b/compat/zlib/examples/zlib_how.html
@@ -0,0 +1,549 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
+  "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
+<title>zlib Usage Example</title>
+<!--  Copyright (c) 2004-2023 Mark Adler.  -->
+</head>
+<body bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#00A000">
+<h2 align="center"> zlib Usage Example </h2>
+We often get questions about how the <tt>deflate()</tt> and <tt>inflate()</tt> functions should be used.
+Users wonder when they should provide more input, when they should use more output,
+what to do with a <tt>Z_BUF_ERROR</tt>, how to make sure the process terminates properly, and
+so on.  So for those who have read <tt>zlib.h</tt> (a few times), and
+would like further edification, below is an annotated example in C of simple routines to compress and decompress
+from an input file to an output file using <tt>deflate()</tt> and <tt>inflate()</tt> respectively.  The
+annotations are interspersed between lines of the code.  So please read between the lines.
+We hope this helps explain some of the intricacies of <em>zlib</em>.
+<p>
+Without further ado, here is the program <a href="zpipe.c"><tt>zpipe.c</tt></a>:
+<pre><b>
+/* zpipe.c: example of proper use of zlib's inflate() and deflate()
+   Not copyrighted -- provided to the public domain
+   Version 1.4  11 December 2005  Mark Adler */
+
+/* Version history:
+   1.0  30 Oct 2004  First version
+   1.1   8 Nov 2004  Add void casting for unused return values
+                     Use switch statement for inflate() return values
+   1.2   9 Nov 2004  Add assertions to document zlib guarantees
+   1.3   6 Apr 2005  Remove incorrect assertion in inf()
+   1.4  11 Dec 2005  Add hack to avoid MSDOS end-of-line conversions
+                     Avoid some compiler warnings for input and output buffers
+ */
+</b></pre><!-- -->
+We now include the header files for the required definitions.  From
+<tt>stdio.h</tt> we use <tt>fopen()</tt>, <tt>fread()</tt>, <tt>fwrite()</tt>,
+<tt>feof()</tt>, <tt>ferror()</tt>, and <tt>fclose()</tt> for file i/o, and
+<tt>fputs()</tt> for error messages.  From <tt>string.h</tt> we use
+<tt>strcmp()</tt> for command line argument processing.
+From <tt>assert.h</tt> we use the <tt>assert()</tt> macro.
+From <tt>zlib.h</tt>
+we use the basic compression functions <tt>deflateInit()</tt>,
+<tt>deflate()</tt>, and <tt>deflateEnd()</tt>, and the basic decompression
+functions <tt>inflateInit()</tt>, <tt>inflate()</tt>, and
+<tt>inflateEnd()</tt>.
+<pre><b>
+#include &lt;stdio.h&gt;
+#include &lt;string.h&gt;
+#include &lt;assert.h&gt;
+#include "zlib.h"
+</b></pre><!-- -->
+This is an ugly hack required to avoid corruption of the input and output data on
+Windows/MS-DOS systems.  Without this, those systems would assume that the input and output
+files are text, and try to convert the end-of-line characters from one standard to
+another.  That would corrupt binary data, and in particular would render the compressed data unusable.
+This sets the input and output to binary which suppresses the end-of-line conversions.
+<tt>SET_BINARY_MODE()</tt> will be used later on <tt>stdin</tt> and <tt>stdout</tt>, at the beginning of <tt>main()</tt>.
+<pre><b>
+#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
+#  include &lt;fcntl.h&gt;
+#  include &lt;io.h&gt;
+#  define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
+#else
+#  define SET_BINARY_MODE(file)
+#endif
+</b></pre><!-- -->
+<tt>CHUNK</tt> is simply the buffer size for feeding data to and pulling data
+from the <em>zlib</em> routines.  Larger buffer sizes would be more efficient,
+especially for <tt>inflate()</tt>.  If the memory is available, buffers sizes
+on the order of 128K or 256K bytes should be used.
+<pre><b>
+#define CHUNK 16384
+</b></pre><!-- -->
+The <tt>def()</tt> routine compresses data from an input file to an output file.  The output data
+will be in the <em>zlib</em> format, which is different from the <em>gzip</em> or <em>zip</em>
+formats.  The <em>zlib</em> format has a very small header of only two bytes to identify it as
+a <em>zlib</em> stream and to provide decoding information, and a four-byte trailer with a fast
+check value to verify the integrity of the uncompressed data after decoding.
+<pre><b>
+/* Compress from file source to file dest until EOF on source.
+   def() returns Z_OK on success, Z_MEM_ERROR if memory could not be
+   allocated for processing, Z_STREAM_ERROR if an invalid compression
+   level is supplied, Z_VERSION_ERROR if the version of zlib.h and the
+   version of the library linked do not match, or Z_ERRNO if there is
+   an error reading or writing the files. */
+int def(FILE *source, FILE *dest, int level)
+{
+</b></pre>
+Here are the local variables for <tt>def()</tt>.  <tt>ret</tt> will be used for <em>zlib</em>
+return codes.  <tt>flush</tt> will keep track of the current flushing state for <tt>deflate()</tt>,
+which is either no flushing, or flush to completion after the end of the input file is reached.
+<tt>have</tt> is the amount of data returned from <tt>deflate()</tt>.  The <tt>strm</tt> structure
+is used to pass information to and from the <em>zlib</em> routines, and to maintain the
+<tt>deflate()</tt> state.  <tt>in</tt> and <tt>out</tt> are the input and output buffers for
+<tt>deflate()</tt>.
+<pre><b>
+    int ret, flush;
+    unsigned have;
+    z_stream strm;
+    unsigned char in[CHUNK];
+    unsigned char out[CHUNK];
+</b></pre><!-- -->
+The first thing we do is to initialize the <em>zlib</em> state for compression using
+<tt>deflateInit()</tt>.  This must be done before the first use of <tt>deflate()</tt>.
+The <tt>zalloc</tt>, <tt>zfree</tt>, and <tt>opaque</tt> fields in the <tt>strm</tt>
+structure must be initialized before calling <tt>deflateInit()</tt>.  Here they are
+set to the <em>zlib</em> constant <tt>Z_NULL</tt> to request that <em>zlib</em> use
+the default memory allocation routines.  An application may also choose to provide
+custom memory allocation routines here.  <tt>deflateInit()</tt> will allocate on the
+order of 256K bytes for the internal state.
+(See <a href="zlib_tech.html"><em>zlib Technical Details</em></a>.)
+<p>
+<tt>deflateInit()</tt> is called with a pointer to the structure to be initialized and
+the compression level, which is an integer in the range of -1 to 9.  Lower compression
+levels result in faster execution, but less compression.  Higher levels result in
+greater compression, but slower execution.  The <em>zlib</em> constant Z_DEFAULT_COMPRESSION,
+equal to -1,
+provides a good compromise between compression and speed and is equivalent to level 6.
+Level 0 actually does no compression at all, and in fact expands the data slightly to produce
+the <em>zlib</em> format (it is not a byte-for-byte copy of the input).
+More advanced applications of <em>zlib</em>
+may use <tt>deflateInit2()</tt> here instead.  Such an application may want to reduce how
+much memory will be used, at some price in compression.  Or it may need to request a
+<em>gzip</em> header and trailer instead of a <em>zlib</em> header and trailer, or raw
+encoding with no header or trailer at all.
+<p>
+We must check the return value of <tt>deflateInit()</tt> against the <em>zlib</em> constant
+<tt>Z_OK</tt> to make sure that it was able to
+allocate memory for the internal state, and that the provided arguments were valid.
+<tt>deflateInit()</tt> will also check that the version of <em>zlib</em> that the <tt>zlib.h</tt>
+file came from matches the version of <em>zlib</em> actually linked with the program.  This
+is especially important for environments in which <em>zlib</em> is a shared library.
+<p>
+Note that an application can initialize multiple, independent <em>zlib</em> streams, which can
+operate in parallel.  The state information maintained in the structure allows the <em>zlib</em>
+routines to be reentrant.
+<pre><b>
+    /* allocate deflate state */
+    strm.zalloc = Z_NULL;
+    strm.zfree = Z_NULL;
+    strm.opaque = Z_NULL;
+    ret = deflateInit(&amp;strm, level);
+    if (ret != Z_OK)
+        return ret;
+</b></pre><!-- -->
+With the pleasantries out of the way, now we can get down to business.  The outer <tt>do</tt>-loop
+reads all of the input file and exits at the bottom of the loop once end-of-file is reached.
+This loop contains the only call of <tt>deflate()</tt>.  So we must make sure that all of the
+input data has been processed and that all of the output data has been generated and consumed
+before we fall out of the loop at the bottom.
+<pre><b>
+    /* compress until end of file */
+    do {
+</b></pre>
+We start off by reading data from the input file.  The number of bytes read is put directly
+into <tt>avail_in</tt>, and a pointer to those bytes is put into <tt>next_in</tt>.  We also
+check to see if end-of-file on the input has been reached using feof().
+If we are at the end of file, then <tt>flush</tt> is set to the
+<em>zlib</em> constant <tt>Z_FINISH</tt>, which is later passed to <tt>deflate()</tt> to
+indicate that this is the last chunk of input data to compress.
+If we are not yet at the end of the input, then the <em>zlib</em>
+constant <tt>Z_NO_FLUSH</tt> will be passed to <tt>deflate</tt> to indicate that we are still
+in the middle of the uncompressed data.
+<p>
+If there is an error in reading from the input file, the process is aborted with
+<tt>deflateEnd()</tt> being called to free the allocated <em>zlib</em> state before returning
+the error.  We wouldn't want a memory leak, now would we?  <tt>deflateEnd()</tt> can be called
+at any time after the state has been initialized.  Once that's done, <tt>deflateInit()</tt> (or
+<tt>deflateInit2()</tt>) would have to be called to start a new compression process.  There is
+no point here in checking the <tt>deflateEnd()</tt> return code.  The deallocation can't fail.
+<pre><b>
+        strm.avail_in = fread(in, 1, CHUNK, source);
+        if (ferror(source)) {
+            (void)deflateEnd(&amp;strm);
+            return Z_ERRNO;
+        }
+        flush = feof(source) ? Z_FINISH : Z_NO_FLUSH;
+        strm.next_in = in;
+</b></pre><!-- -->
+The inner <tt>do</tt>-loop passes our chunk of input data to <tt>deflate()</tt>, and then
+keeps calling <tt>deflate()</tt> until it is done producing output.  Once there is no more
+new output, <tt>deflate()</tt> is guaranteed to have consumed all of the input, i.e.,
+<tt>avail_in</tt> will be zero.
+<pre><b>
+        /* run deflate() on input until output buffer not full, finish
+           compression if all of source has been read in */
+        do {
+</b></pre>
+Output space is provided to <tt>deflate()</tt> by setting <tt>avail_out</tt> to the number
+of available output bytes and <tt>next_out</tt> to a pointer to that space.
+<pre><b>
+            strm.avail_out = CHUNK;
+            strm.next_out = out;
+</b></pre>
+Now we call the compression engine itself, <tt>deflate()</tt>.  It takes as many of the
+<tt>avail_in</tt> bytes at <tt>next_in</tt> as it can process, and writes as many as
+<tt>avail_out</tt> bytes to <tt>next_out</tt>.  Those counters and pointers are then
+updated past the input data consumed and the output data written.  It is the amount of
+output space available that may limit how much input is consumed.
+Hence the inner loop to make sure that
+all of the input is consumed by providing more output space each time.  Since <tt>avail_in</tt>
+and <tt>next_in</tt> are updated by <tt>deflate()</tt>, we don't have to mess with those
+between <tt>deflate()</tt> calls until it's all used up.
+<p>
+The parameters to <tt>deflate()</tt> are a pointer to the <tt>strm</tt> structure containing
+the input and output information and the internal compression engine state, and a parameter
+indicating whether and how to flush data to the output.  Normally <tt>deflate</tt> will consume
+several K bytes of input data before producing any output (except for the header), in order
+to accumulate statistics on the data for optimum compression.  It will then put out a burst of
+compressed data, and proceed to consume more input before the next burst.  Eventually,
+<tt>deflate()</tt>
+must be told to terminate the stream, complete the compression with provided input data, and
+write out the trailer check value.  <tt>deflate()</tt> will continue to compress normally as long
+as the flush parameter is <tt>Z_NO_FLUSH</tt>.  Once the <tt>Z_FINISH</tt> parameter is provided,
+<tt>deflate()</tt> will begin to complete the compressed output stream.  However depending on how
+much output space is provided, <tt>deflate()</tt> may have to be called several times until it
+has provided the complete compressed stream, even after it has consumed all of the input.  The flush
+parameter must continue to be <tt>Z_FINISH</tt> for those subsequent calls.
+<p>
+There are other values of the flush parameter that are used in more advanced applications.  You can
+force <tt>deflate()</tt> to produce a burst of output that encodes all of the input data provided
+so far, even if it wouldn't have otherwise, for example to control data latency on a link with
+compressed data.  You can also ask that <tt>deflate()</tt> do that as well as erase any history up to
+that point so that what follows can be decompressed independently, for example for random access
+applications.  Both requests will degrade compression by an amount depending on how often such
+requests are made.
+<p>
+<tt>deflate()</tt> has a return value that can indicate errors, yet we do not check it here.  Why
+not?  Well, it turns out that <tt>deflate()</tt> can do no wrong here.  Let's go through
+<tt>deflate()</tt>'s return values and dispense with them one by one.  The possible values are
+<tt>Z_OK</tt>, <tt>Z_STREAM_END</tt>, <tt>Z_STREAM_ERROR</tt>, or <tt>Z_BUF_ERROR</tt>.  <tt>Z_OK</tt>
+is, well, ok.  <tt>Z_STREAM_END</tt> is also ok and will be returned for the last call of
+<tt>deflate()</tt>.  This is already guaranteed by calling <tt>deflate()</tt> with <tt>Z_FINISH</tt>
+until it has no more output.  <tt>Z_STREAM_ERROR</tt> is only possible if the stream is not
+initialized properly, but we did initialize it properly.  There is no harm in checking for
+<tt>Z_STREAM_ERROR</tt> here, for example to check for the possibility that some
+other part of the application inadvertently clobbered the memory containing the <em>zlib</em> state.
+<tt>Z_BUF_ERROR</tt> will be explained further below, but
+suffice it to say that this is simply an indication that <tt>deflate()</tt> could not consume
+more input or produce more output.  <tt>deflate()</tt> can be called again with more output space
+or more available input, which it will be in this code.
+<pre><b>
+            ret = deflate(&amp;strm, flush);    /* no bad return value */
+            assert(ret != Z_STREAM_ERROR);  /* state not clobbered */
+</b></pre>
+Now we compute how much output <tt>deflate()</tt> provided on the last call, which is the
+difference between how much space was provided before the call, and how much output space
+is still available after the call.  Then that data, if any, is written to the output file.
+We can then reuse the output buffer for the next call of <tt>deflate()</tt>.  Again if there
+is a file i/o error, we call <tt>deflateEnd()</tt> before returning to avoid a memory leak.
+<pre><b>
+            have = CHUNK - strm.avail_out;
+            if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
+                (void)deflateEnd(&amp;strm);
+                return Z_ERRNO;
+            }
+</b></pre>
+The inner <tt>do</tt>-loop is repeated until the last <tt>deflate()</tt> call fails to fill the
+provided output buffer.  Then we know that <tt>deflate()</tt> has done as much as it can with
+the provided input, and that all of that input has been consumed.  We can then fall out of this
+loop and reuse the input buffer.
+<p>
+The way we tell that <tt>deflate()</tt> has no more output is by seeing that it did not fill
+the output buffer, leaving <tt>avail_out</tt> greater than zero.  However suppose that
+<tt>deflate()</tt> has no more output, but just so happened to exactly fill the output buffer!
+<tt>avail_out</tt> is zero, and we can't tell that <tt>deflate()</tt> has done all it can.
+As far as we know, <tt>deflate()</tt>
+has more output for us.  So we call it again.  But now <tt>deflate()</tt> produces no output
+at all, and <tt>avail_out</tt> remains unchanged as <tt>CHUNK</tt>.  That <tt>deflate()</tt> call
+wasn't able to do anything, either consume input or produce output, and so it returns
+<tt>Z_BUF_ERROR</tt>.  (See, I told you I'd cover this later.)  However this is not a problem at
+all.  Now we finally have the desired indication that <tt>deflate()</tt> is really done,
+and so we drop out of the inner loop to provide more input to <tt>deflate()</tt>.
+<p>
+With <tt>flush</tt> set to <tt>Z_FINISH</tt>, this final set of <tt>deflate()</tt> calls will
+complete the output stream.  Once that is done, subsequent calls of <tt>deflate()</tt> would return
+<tt>Z_STREAM_ERROR</tt> if the flush parameter is not <tt>Z_FINISH</tt>, and do no more processing
+until the state is reinitialized.
+<p>
+Some applications of <em>zlib</em> have two loops that call <tt>deflate()</tt>
+instead of the single inner loop we have here.  The first loop would call
+without flushing and feed all of the data to <tt>deflate()</tt>.  The second loop would call
+<tt>deflate()</tt> with no more
+data and the <tt>Z_FINISH</tt> parameter to complete the process.  As you can see from this
+example, that can be avoided by simply keeping track of the current flush state.
+<pre><b>
+        } while (strm.avail_out == 0);
+        assert(strm.avail_in == 0);     /* all input will be used */
+</b></pre><!-- -->
+Now we check to see if we have already processed all of the input file.  That information was
+saved in the <tt>flush</tt> variable, so we see if that was set to <tt>Z_FINISH</tt>.  If so,
+then we're done and we fall out of the outer loop.  We're guaranteed to get <tt>Z_STREAM_END</tt>
+from the last <tt>deflate()</tt> call, since we ran it until the last chunk of input was
+consumed and all of the output was generated.
+<pre><b>
+        /* done when last data in file processed */
+    } while (flush != Z_FINISH);
+    assert(ret == Z_STREAM_END);        /* stream will be complete */
+</b></pre><!-- -->
+The process is complete, but we still need to deallocate the state to avoid a memory leak
+(or rather more like a memory hemorrhage if you didn't do this).  Then
+finally we can return with a happy return value.
+<pre><b>
+    /* clean up and return */
+    (void)deflateEnd(&amp;strm);
+    return Z_OK;
+}
+</b></pre><!-- -->
+Now we do the same thing for decompression in the <tt>inf()</tt> routine. <tt>inf()</tt>
+decompresses what is hopefully a valid <em>zlib</em> stream from the input file and writes the
+uncompressed data to the output file.  Much of the discussion above for <tt>def()</tt>
+applies to <tt>inf()</tt> as well, so the discussion here will focus on the differences between
+the two.
+<pre><b>
+/* Decompress from file source to file dest until stream ends or EOF.
+   inf() returns Z_OK on success, Z_MEM_ERROR if memory could not be
+   allocated for processing, Z_DATA_ERROR if the deflate data is
+   invalid or incomplete, Z_VERSION_ERROR if the version of zlib.h and
+   the version of the library linked do not match, or Z_ERRNO if there
+   is an error reading or writing the files. */
+int inf(FILE *source, FILE *dest)
+{
+</b></pre>
+The local variables have the same functionality as they do for <tt>def()</tt>.  The
+only difference is that there is no <tt>flush</tt> variable, since <tt>inflate()</tt>
+can tell from the <em>zlib</em> stream itself when the stream is complete.
+<pre><b>
+    int ret;
+    unsigned have;
+    z_stream strm;
+    unsigned char in[CHUNK];
+    unsigned char out[CHUNK];
+</b></pre><!-- -->
+The initialization of the state is the same, except that there is no compression level,
+of course, and two more elements of the structure are initialized.  <tt>avail_in</tt>
+and <tt>next_in</tt> must be initialized before calling <tt>inflateInit()</tt>.  This
+is because the application has the option to provide the start of the zlib stream in
+order for <tt>inflateInit()</tt> to have access to information about the compression
+method to aid in memory allocation.  In the current implementation of <em>zlib</em>
+(up through versions 1.2.x), the method-dependent memory allocations are deferred to the first call of
+<tt>inflate()</tt> anyway.  However those fields must be initialized since later versions
+of <em>zlib</em> that provide more compression methods may take advantage of this interface.
+In any case, no decompression is performed by <tt>inflateInit()</tt>, so the
+<tt>avail_out</tt> and <tt>next_out</tt> fields do not need to be initialized before calling.
+<p>
+Here <tt>avail_in</tt> is set to zero and <tt>next_in</tt> is set to <tt>Z_NULL</tt> to
+indicate that no input data is being provided.
+<pre><b>
+    /* allocate inflate state */
+    strm.zalloc = Z_NULL;
+    strm.zfree = Z_NULL;
+    strm.opaque = Z_NULL;
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit(&amp;strm);
+    if (ret != Z_OK)
+        return ret;
+</b></pre><!-- -->
+The outer <tt>do</tt>-loop decompresses input until <tt>inflate()</tt> indicates
+that it has reached the end of the compressed data and has produced all of the uncompressed
+output.  This is in contrast to <tt>def()</tt> which processes all of the input file.
+If end-of-file is reached before the compressed data self-terminates, then the compressed
+data is incomplete and an error is returned.
+<pre><b>
+    /* decompress until deflate stream ends or end of file */
+    do {
+</b></pre>
+We read input data and set the <tt>strm</tt> structure accordingly.  If we've reached the
+end of the input file, then we leave the outer loop and report an error, since the
+compressed data is incomplete.  Note that we may read more data than is eventually consumed
+by <tt>inflate()</tt>, if the input file continues past the <em>zlib</em> stream.
+For applications where <em>zlib</em> streams are embedded in other data, this routine would
+need to be modified to return the unused data, or at least indicate how much of the input
+data was not used, so the application would know where to pick up after the <em>zlib</em> stream.
+<pre><b>
+        strm.avail_in = fread(in, 1, CHUNK, source);
+        if (ferror(source)) {
+            (void)inflateEnd(&amp;strm);
+            return Z_ERRNO;
+        }
+        if (strm.avail_in == 0)
+            break;
+        strm.next_in = in;
+</b></pre><!-- -->
+The inner <tt>do</tt>-loop has the same function it did in <tt>def()</tt>, which is to
+keep calling <tt>inflate()</tt> until has generated all of the output it can with the
+provided input.
+<pre><b>
+        /* run inflate() on input until output buffer not full */
+        do {
+</b></pre>
+Just like in <tt>def()</tt>, the same output space is provided for each call of <tt>inflate()</tt>.
+<pre><b>
+            strm.avail_out = CHUNK;
+            strm.next_out = out;
+</b></pre>
+Now we run the decompression engine itself.  There is no need to adjust the flush parameter, since
+the <em>zlib</em> format is self-terminating. The main difference here is that there are
+return values that we need to pay attention to.  <tt>Z_DATA_ERROR</tt>
+indicates that <tt>inflate()</tt> detected an error in the <em>zlib</em> compressed data format,
+which means that either the data is not a <em>zlib</em> stream to begin with, or that the data was
+corrupted somewhere along the way since it was compressed.  The other error to be processed is
+<tt>Z_MEM_ERROR</tt>, which can occur since memory allocation is deferred until <tt>inflate()</tt>
+needs it, unlike <tt>deflate()</tt>, whose memory is allocated at the start by <tt>deflateInit()</tt>.
+<p>
+Advanced applications may use
+<tt>deflateSetDictionary()</tt> to prime <tt>deflate()</tt> with a set of likely data to improve the
+first 32K or so of compression.  This is noted in the <em>zlib</em> header, so <tt>inflate()</tt>
+requests that that dictionary be provided before it can start to decompress.  Without the dictionary,
+correct decompression is not possible.  For this routine, we have no idea what the dictionary is,
+so the <tt>Z_NEED_DICT</tt> indication is converted to a <tt>Z_DATA_ERROR</tt>.
+<p>
+<tt>inflate()</tt> can also return <tt>Z_STREAM_ERROR</tt>, which should not be possible here,
+but could be checked for as noted above for <tt>def()</tt>.  <tt>Z_BUF_ERROR</tt> does not need to be
+checked for here, for the same reasons noted for <tt>def()</tt>.  <tt>Z_STREAM_END</tt> will be
+checked for later.
+<pre><b>
+            ret = inflate(&amp;strm, Z_NO_FLUSH);
+            assert(ret != Z_STREAM_ERROR);  /* state not clobbered */
+            switch (ret) {
+            case Z_NEED_DICT:
+                ret = Z_DATA_ERROR;     /* and fall through */
+            case Z_DATA_ERROR:
+            case Z_MEM_ERROR:
+                (void)inflateEnd(&amp;strm);
+                return ret;
+            }
+</b></pre>
+The output of <tt>inflate()</tt> is handled identically to that of <tt>deflate()</tt>.
+<pre><b>
+            have = CHUNK - strm.avail_out;
+            if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
+                (void)inflateEnd(&amp;strm);
+                return Z_ERRNO;
+            }
+</b></pre>
+The inner <tt>do</tt>-loop ends when <tt>inflate()</tt> has no more output as indicated
+by not filling the output buffer, just as for <tt>deflate()</tt>.  In this case, we cannot
+assert that <tt>strm.avail_in</tt> will be zero, since the deflate stream may end before the file
+does.
+<pre><b>
+        } while (strm.avail_out == 0);
+</b></pre><!-- -->
+The outer <tt>do</tt>-loop ends when <tt>inflate()</tt> reports that it has reached the
+end of the input <em>zlib</em> stream, has completed the decompression and integrity
+check, and has provided all of the output.  This is indicated by the <tt>inflate()</tt>
+return value <tt>Z_STREAM_END</tt>.  The inner loop is guaranteed to leave <tt>ret</tt>
+equal to <tt>Z_STREAM_END</tt> if the last chunk of the input file read contained the end
+of the <em>zlib</em> stream.  So if the return value is not <tt>Z_STREAM_END</tt>, the
+loop continues to read more input.
+<pre><b>
+        /* done when inflate() says it's done */
+    } while (ret != Z_STREAM_END);
+</b></pre><!-- -->
+At this point, decompression successfully completed, or we broke out of the loop due to no
+more data being available from the input file.  If the last <tt>inflate()</tt> return value
+is not <tt>Z_STREAM_END</tt>, then the <em>zlib</em> stream was incomplete and a data error
+is returned.  Otherwise, we return with a happy return value.  Of course, <tt>inflateEnd()</tt>
+is called first to avoid a memory leak.
+<pre><b>
+    /* clean up and return */
+    (void)inflateEnd(&amp;strm);
+    return ret == Z_STREAM_END ? Z_OK : Z_DATA_ERROR;
+}
+</b></pre><!-- -->
+That ends the routines that directly use <em>zlib</em>.  The following routines make this
+a command-line program by running data through the above routines from <tt>stdin</tt> to
+<tt>stdout</tt>, and handling any errors reported by <tt>def()</tt> or <tt>inf()</tt>.
+<p>
+<tt>zerr()</tt> is used to interpret the possible error codes from <tt>def()</tt>
+and <tt>inf()</tt>, as detailed in their comments above, and print out an error message.
+Note that these are only a subset of the possible return values from <tt>deflate()</tt>
+and <tt>inflate()</tt>.
+<pre><b>
+/* report a zlib or i/o error */
+void zerr(int ret)
+{
+    fputs("zpipe: ", stderr);
+    switch (ret) {
+    case Z_ERRNO:
+        if (ferror(stdin))
+            fputs("error reading stdin\n", stderr);
+        if (ferror(stdout))
+            fputs("error writing stdout\n", stderr);
+        break;
+    case Z_STREAM_ERROR:
+        fputs("invalid compression level\n", stderr);
+        break;
+    case Z_DATA_ERROR:
+        fputs("invalid or incomplete deflate data\n", stderr);
+        break;
+    case Z_MEM_ERROR:
+        fputs("out of memory\n", stderr);
+        break;
+    case Z_VERSION_ERROR:
+        fputs("zlib version mismatch!\n", stderr);
+    }
+}
+</b></pre><!-- -->
+Here is the <tt>main()</tt> routine used to test <tt>def()</tt> and <tt>inf()</tt>.  The
+<tt>zpipe</tt> command is simply a compression pipe from <tt>stdin</tt> to <tt>stdout</tt>, if
+no arguments are given, or it is a decompression pipe if <tt>zpipe -d</tt> is used.  If any other
+arguments are provided, no compression or decompression is performed.  Instead a usage
+message is displayed.  Examples are <tt>zpipe < foo.txt > foo.txt.z</tt> to compress, and
+<tt>zpipe -d < foo.txt.z > foo.txt</tt> to decompress.
+<pre><b>
+/* compress or decompress from stdin to stdout */
+int main(int argc, char **argv)
+{
+    int ret;
+
+    /* avoid end-of-line conversions */
+    SET_BINARY_MODE(stdin);
+    SET_BINARY_MODE(stdout);
+
+    /* do compression if no arguments */
+    if (argc == 1) {
+        ret = def(stdin, stdout, Z_DEFAULT_COMPRESSION);
+        if (ret != Z_OK)
+            zerr(ret);
+        return ret;
+    }
+
+    /* do decompression if -d specified */
+    else if (argc == 2 &amp;&amp; strcmp(argv[1], "-d") == 0) {
+        ret = inf(stdin, stdout);
+        if (ret != Z_OK)
+            zerr(ret);
+        return ret;
+    }
+
+    /* otherwise, report usage */
+    else {
+        fputs("zpipe usage: zpipe [-d] &lt; source &gt; dest\n", stderr);
+        return 1;
+    }
+}
+</b></pre>
+<hr>
+<i>Last modified 24 January 2023<br>
+Copyright &#169; 2004-2023 Mark Adler</i><br>
+<a rel="license" href="http://creativecommons.org/licenses/by-nd/4.0/">
+<img alt="Creative Commons License" style="border-width:0"
+src="https://i.creativecommons.org/l/by-nd/4.0/88x31.png"></a>
+<a rel="license" href="http://creativecommons.org/licenses/by-nd/4.0/">
+Creative Commons Attribution-NoDerivatives 4.0 International License</a>.
+</body>
+</html>
diff --git a/compat/zlib/examples/zpipe.c b/compat/zlib/examples/zpipe.c
new file mode 100644
index 0000000..83535d1
--- /dev/null
+++ b/compat/zlib/examples/zpipe.c
@@ -0,0 +1,205 @@
+/* zpipe.c: example of proper use of zlib's inflate() and deflate()
+   Not copyrighted -- provided to the public domain
+   Version 1.4  11 December 2005  Mark Adler */
+
+/* Version history:
+   1.0  30 Oct 2004  First version
+   1.1   8 Nov 2004  Add void casting for unused return values
+                     Use switch statement for inflate() return values
+   1.2   9 Nov 2004  Add assertions to document zlib guarantees
+   1.3   6 Apr 2005  Remove incorrect assertion in inf()
+   1.4  11 Dec 2005  Add hack to avoid MSDOS end-of-line conversions
+                     Avoid some compiler warnings for input and output buffers
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include "zlib.h"
+
+#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
+#  include <fcntl.h>
+#  include <io.h>
+#  define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
+#else
+#  define SET_BINARY_MODE(file)
+#endif
+
+#define CHUNK 16384
+
+/* Compress from file source to file dest until EOF on source.
+   def() returns Z_OK on success, Z_MEM_ERROR if memory could not be
+   allocated for processing, Z_STREAM_ERROR if an invalid compression
+   level is supplied, Z_VERSION_ERROR if the version of zlib.h and the
+   version of the library linked do not match, or Z_ERRNO if there is
+   an error reading or writing the files. */
+int def(FILE *source, FILE *dest, int level)
+{
+    int ret, flush;
+    unsigned have;
+    z_stream strm;
+    unsigned char in[CHUNK];
+    unsigned char out[CHUNK];
+
+    /* allocate deflate state */
+    strm.zalloc = Z_NULL;
+    strm.zfree = Z_NULL;
+    strm.opaque = Z_NULL;
+    ret = deflateInit(&strm, level);
+    if (ret != Z_OK)
+        return ret;
+
+    /* compress until end of file */
+    do {
+        strm.avail_in = fread(in, 1, CHUNK, source);
+        if (ferror(source)) {
+            (void)deflateEnd(&strm);
+            return Z_ERRNO;
+        }
+        flush = feof(source) ? Z_FINISH : Z_NO_FLUSH;
+        strm.next_in = in;
+
+        /* run deflate() on input until output buffer not full, finish
+           compression if all of source has been read in */
+        do {
+            strm.avail_out = CHUNK;
+            strm.next_out = out;
+            ret = deflate(&strm, flush);    /* no bad return value */
+            assert(ret != Z_STREAM_ERROR);  /* state not clobbered */
+            have = CHUNK - strm.avail_out;
+            if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
+                (void)deflateEnd(&strm);
+                return Z_ERRNO;
+            }
+        } while (strm.avail_out == 0);
+        assert(strm.avail_in == 0);     /* all input will be used */
+
+        /* done when last data in file processed */
+    } while (flush != Z_FINISH);
+    assert(ret == Z_STREAM_END);        /* stream will be complete */
+
+    /* clean up and return */
+    (void)deflateEnd(&strm);
+    return Z_OK;
+}
+
+/* Decompress from file source to file dest until stream ends or EOF.
+   inf() returns Z_OK on success, Z_MEM_ERROR if memory could not be
+   allocated for processing, Z_DATA_ERROR if the deflate data is
+   invalid or incomplete, Z_VERSION_ERROR if the version of zlib.h and
+   the version of the library linked do not match, or Z_ERRNO if there
+   is an error reading or writing the files. */
+int inf(FILE *source, FILE *dest)
+{
+    int ret;
+    unsigned have;
+    z_stream strm;
+    unsigned char in[CHUNK];
+    unsigned char out[CHUNK];
+
+    /* allocate inflate state */
+    strm.zalloc = Z_NULL;
+    strm.zfree = Z_NULL;
+    strm.opaque = Z_NULL;
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit(&strm);
+    if (ret != Z_OK)
+        return ret;
+
+    /* decompress until deflate stream ends or end of file */
+    do {
+        strm.avail_in = fread(in, 1, CHUNK, source);
+        if (ferror(source)) {
+            (void)inflateEnd(&strm);
+            return Z_ERRNO;
+        }
+        if (strm.avail_in == 0)
+            break;
+        strm.next_in = in;
+
+        /* run inflate() on input until output buffer not full */
+        do {
+            strm.avail_out = CHUNK;
+            strm.next_out = out;
+            ret = inflate(&strm, Z_NO_FLUSH);
+            assert(ret != Z_STREAM_ERROR);  /* state not clobbered */
+            switch (ret) {
+            case Z_NEED_DICT:
+                ret = Z_DATA_ERROR;     /* and fall through */
+            case Z_DATA_ERROR:
+            case Z_MEM_ERROR:
+                (void)inflateEnd(&strm);
+                return ret;
+            }
+            have = CHUNK - strm.avail_out;
+            if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
+                (void)inflateEnd(&strm);
+                return Z_ERRNO;
+            }
+        } while (strm.avail_out == 0);
+
+        /* done when inflate() says it's done */
+    } while (ret != Z_STREAM_END);
+
+    /* clean up and return */
+    (void)inflateEnd(&strm);
+    return ret == Z_STREAM_END ? Z_OK : Z_DATA_ERROR;
+}
+
+/* report a zlib or i/o error */
+void zerr(int ret)
+{
+    fputs("zpipe: ", stderr);
+    switch (ret) {
+    case Z_ERRNO:
+        if (ferror(stdin))
+            fputs("error reading stdin\n", stderr);
+        if (ferror(stdout))
+            fputs("error writing stdout\n", stderr);
+        break;
+    case Z_STREAM_ERROR:
+        fputs("invalid compression level\n", stderr);
+        break;
+    case Z_DATA_ERROR:
+        fputs("invalid or incomplete deflate data\n", stderr);
+        break;
+    case Z_MEM_ERROR:
+        fputs("out of memory\n", stderr);
+        break;
+    case Z_VERSION_ERROR:
+        fputs("zlib version mismatch!\n", stderr);
+    }
+}
+
+/* compress or decompress from stdin to stdout */
+int main(int argc, char **argv)
+{
+    int ret;
+
+    /* avoid end-of-line conversions */
+    SET_BINARY_MODE(stdin);
+    SET_BINARY_MODE(stdout);
+
+    /* do compression if no arguments */
+    if (argc == 1) {
+        ret = def(stdin, stdout, Z_DEFAULT_COMPRESSION);
+        if (ret != Z_OK)
+            zerr(ret);
+        return ret;
+    }
+
+    /* do decompression if -d specified */
+    else if (argc == 2 && strcmp(argv[1], "-d") == 0) {
+        ret = inf(stdin, stdout);
+        if (ret != Z_OK)
+            zerr(ret);
+        return ret;
+    }
+
+    /* otherwise, report usage */
+    else {
+        fputs("zpipe usage: zpipe [-d] < source > dest\n", stderr);
+        return 1;
+    }
+}
diff --git a/compat/zlib/examples/zran.c b/compat/zlib/examples/zran.c
new file mode 100644
index 0000000..d313595
--- /dev/null
+++ b/compat/zlib/examples/zran.c
@@ -0,0 +1,533 @@
+/* zran.c -- example of deflate stream indexing and random access
+ * Copyright (C) 2005, 2012, 2018, 2023 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ * Version 1.4  13 Apr 2023  Mark Adler */
+
+/* Version History:
+ 1.0  29 May 2005  First version
+ 1.1  29 Sep 2012  Fix memory reallocation error
+ 1.2  14 Oct 2018  Handle gzip streams with multiple members
+                   Add a header file to facilitate usage in applications
+ 1.3  18 Feb 2023  Permit raw deflate streams as well as zlib and gzip
+                   Permit crossing gzip member boundaries when extracting
+                   Support a size_t size when extracting (was an int)
+                   Do a binary search over the index for an access point
+                   Expose the access point type to enable save and load
+ 1.4  13 Apr 2023  Add a NOPRIME define to not use inflatePrime()
+ */
+
+// Illustrate the use of Z_BLOCK, inflatePrime(), and inflateSetDictionary()
+// for random access of a compressed file. A file containing a raw deflate
+// stream is provided on the command line. The compressed stream is decoded in
+// its entirety, and an index built with access points about every SPAN bytes
+// in the uncompressed output. The compressed file is left open, and can then
+// be read randomly, having to decompress on the average SPAN/2 uncompressed
+// bytes before getting to the desired block of data.
+//
+// An access point can be created at the start of any deflate block, by saving
+// the starting file offset and bit of that block, and the 32K bytes of
+// uncompressed data that precede that block. Also the uncompressed offset of
+// that block is saved to provide a reference for locating a desired starting
+// point in the uncompressed stream. deflate_index_build() decompresses the
+// input raw deflate stream a block at a time, and at the end of each block
+// decides if enough uncompressed data has gone by to justify the creation of a
+// new access point. If so, that point is saved in a data structure that grows
+// as needed to accommodate the points.
+//
+// To use the index, an offset in the uncompressed data is provided, for which
+// the latest access point at or preceding that offset is located in the index.
+// The input file is positioned to the specified location in the index, and if
+// necessary the first few bits of the compressed data is read from the file.
+// inflate is initialized with those bits and the 32K of uncompressed data, and
+// decompression then proceeds until the desired offset in the file is reached.
+// Then decompression continues to read the requested uncompressed data from
+// the file.
+//
+// There is some fair bit of overhead to starting inflation for the random
+// access, mainly copying the 32K byte dictionary. If small pieces of the file
+// are being accessed, it would make sense to implement a cache to hold some
+// lookahead to avoid many calls to deflate_index_extract() for small lengths.
+//
+// Another way to build an index would be to use inflateCopy(). That would not
+// be constrained to have access points at block boundaries, but would require
+// more memory per access point, and could not be saved to a file due to the
+// use of pointers in the state. The approach here allows for storage of the
+// index in a file.
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include "zlib.h"
+#include "zran.h"
+
+#define WINSIZE 32768U      // sliding window size
+#define CHUNK 16384         // file input buffer size
+
+// See comments in zran.h.
+void deflate_index_free(struct deflate_index *index) {
+    if (index != NULL) {
+        free(index->list);
+        free(index);
+    }
+}
+
+// Add an access point to the list. If out of memory, deallocate the existing
+// list and return NULL. index->mode is temporarily the allocated number of
+// access points, until it is time for deflate_index_build() to return. Then
+// index->mode is set to the mode of inflation.
+static struct deflate_index *add_point(struct deflate_index *index, int bits,
+                                       off_t in, off_t out, unsigned left,
+                                       unsigned char *window) {
+    if (index == NULL) {
+        // The list is empty. Create it, starting with eight access points.
+        index = malloc(sizeof(struct deflate_index));
+        if (index == NULL)
+            return NULL;
+        index->have = 0;
+        index->mode = 8;
+        index->list = malloc(sizeof(point_t) * index->mode);
+        if (index->list == NULL) {
+            free(index);
+            return NULL;
+        }
+    }
+
+    else if (index->have == index->mode) {
+        // The list is full. Make it bigger.
+        index->mode <<= 1;
+        point_t *next = realloc(index->list, sizeof(point_t) * index->mode);
+        if (next == NULL) {
+            deflate_index_free(index);
+            return NULL;
+        }
+        index->list = next;
+    }
+
+    // Fill in the access point and increment how many we have.
+    point_t *next = (point_t *)(index->list) + index->have++;
+    if (index->have < 0) {
+        // Overflowed the int!
+        deflate_index_free(index);
+        return NULL;
+    }
+    next->out = out;
+    next->in = in;
+    next->bits = bits;
+    if (left)
+        memcpy(next->window, window + WINSIZE - left, left);
+    if (left < WINSIZE)
+        memcpy(next->window + left, window, WINSIZE - left);
+
+    // Return the index, which may have been newly allocated or destroyed.
+    return index;
+}
+
+// Decompression modes. These are the inflateInit2() windowBits parameter.
+#define RAW -15
+#define ZLIB 15
+#define GZIP 31
+
+// See comments in zran.h.
+int deflate_index_build(FILE *in, off_t span, struct deflate_index **built) {
+    // Set up inflation state.
+    z_stream strm = {0};        // inflate engine (gets fired up later)
+    unsigned char buf[CHUNK];   // input buffer
+    unsigned char win[WINSIZE] = {0};   // output sliding window
+    off_t totin = 0;            // total bytes read from input
+    off_t totout = 0;           // total bytes uncompressed
+    int mode = 0;               // mode: RAW, ZLIB, or GZIP (0 => not set yet)
+
+    // Decompress from in, generating access points along the way.
+    int ret;                    // the return value from zlib, or Z_ERRNO
+    off_t last;                 // last access point uncompressed offset
+    struct deflate_index *index = NULL;     // list of access points
+    do {
+        // Assure available input, at least until reaching EOF.
+        if (strm.avail_in == 0) {
+            strm.avail_in = fread(buf, 1, sizeof(buf), in);
+            totin += strm.avail_in;
+            strm.next_in = buf;
+            if (strm.avail_in < sizeof(buf) && ferror(in)) {
+                ret = Z_ERRNO;
+                break;
+            }
+
+            if (mode == 0) {
+                // At the start of the input -- determine the type. Assume raw
+                // if it is neither zlib nor gzip. This could in theory result
+                // in a false positive for zlib, but in practice the fill bits
+                // after a stored block are always zeros, so a raw stream won't
+                // start with an 8 in the low nybble.
+                mode = strm.avail_in == 0 ? RAW :       // empty -- will fail
+                       (strm.next_in[0] & 0xf) == 8 ? ZLIB :
+                       strm.next_in[0] == 0x1f ? GZIP :
+                       /* else */ RAW;
+                ret = inflateInit2(&strm, mode);
+                if (ret != Z_OK)
+                    break;
+            }
+        }
+
+        // Assure available output. This rotates the output through, for use as
+        // a sliding window on the uncompressed data.
+        if (strm.avail_out == 0) {
+            strm.avail_out = sizeof(win);
+            strm.next_out = win;
+        }
+
+        if (mode == RAW && index == NULL)
+            // We skip the inflate() call at the start of raw deflate data in
+            // order generate an access point there. Set data_type to imitate
+            // the end of a header.
+            strm.data_type = 0x80;
+        else {
+            // Inflate and update the number of uncompressed bytes.
+            unsigned before = strm.avail_out;
+            ret = inflate(&strm, Z_BLOCK);
+            totout += before - strm.avail_out;
+        }
+
+        if ((strm.data_type & 0xc0) == 0x80 &&
+            (index == NULL || totout - last >= span)) {
+            // We are at the end of a header or a non-last deflate block, so we
+            // can add an access point here. Furthermore, we are either at the
+            // very start for the first access point, or there has been span or
+            // more uncompressed bytes since the last access point, so we want
+            // to add an access point here.
+            index = add_point(index, strm.data_type & 7, totin - strm.avail_in,
+                              totout, strm.avail_out, win);
+            if (index == NULL) {
+                ret = Z_MEM_ERROR;
+                break;
+            }
+            last = totout;
+        }
+
+        if (ret == Z_STREAM_END && mode == GZIP &&
+            (strm.avail_in || ungetc(getc(in), in) != EOF))
+            // There is more input after the end of a gzip member. Reset the
+            // inflate state to read another gzip member. On success, this will
+            // set ret to Z_OK to continue decompressing.
+            ret = inflateReset2(&strm, GZIP);
+
+        // Keep going until Z_STREAM_END or error. If the compressed data ends
+        // prematurely without a file read error, Z_BUF_ERROR is returned.
+    } while (ret == Z_OK);
+    inflateEnd(&strm);
+
+    if (ret != Z_STREAM_END) {
+        // An error was encountered. Discard the index and return a negative
+        // error code.
+        deflate_index_free(index);
+        return ret == Z_NEED_DICT ? Z_DATA_ERROR : ret;
+    }
+
+    // Shrink the index to only the occupied access points and return it.
+    index->mode = mode;
+    index->length = totout;
+    point_t *list = realloc(index->list, sizeof(point_t) * index->have);
+    if (list == NULL) {
+        // Seems like a realloc() to make something smaller should always work,
+        // but just in case.
+        deflate_index_free(index);
+        return Z_MEM_ERROR;
+    }
+    index->list = list;
+    *built = index;
+    return index->have;
+}
+
+#ifdef NOPRIME
+// Support zlib versions before 1.2.3 (July 2005), or incomplete zlib clones
+// that do not have inflatePrime().
+
+#  define INFLATEPRIME inflatePreface
+
+// Append the low bits bits of value to in[] at bit position *have, updating
+// *have. value must be zero above its low bits bits. bits must be positive.
+// This assumes that any bits above the *have bits in the last byte are zeros.
+// That assumption is preserved on return, as any bits above *have + bits in
+// the last byte written will be set to zeros.
+static inline void append_bits(unsigned value, int bits,
+                               unsigned char *in, int *have) {
+    in += *have >> 3;           // where the first bits from value will go
+    int k = *have & 7;          // the number of bits already there
+    *have += bits;
+    if (k)
+        *in |= value << k;      // write value above the low k bits
+    else
+        *in = value;
+    k = 8 - k;                  // the number of bits just appended
+    while (bits > k) {
+        value >>= k;            // drop the bits appended
+        bits -= k;
+        k = 8;                  // now at a byte boundary
+        *++in = value;
+    }
+}
+
+// Insert enough bits in the form of empty deflate blocks in front of the
+// low bits bits of value, in order to bring the sequence to a byte boundary.
+// Then feed that to inflate(). This does what inflatePrime() does, except that
+// a negative value of bits is not supported. bits must be in 0..16. If the
+// arguments are invalid, Z_STREAM_ERROR is returned. Otherwise the return
+// value from inflate() is returned.
+static int inflatePreface(z_stream *strm, int bits, int value) {
+    // Check input.
+    if (strm == Z_NULL || bits < 0 || bits > 16)
+        return Z_STREAM_ERROR;
+    if (bits == 0)
+        return Z_OK;
+    value &= (2 << (bits - 1)) - 1;
+
+    // An empty dynamic block with an odd number of bits (95). The high bit of
+    // the last byte is unused.
+    static const unsigned char dyn[] = {
+        4, 0xe0, 0x81, 8, 0, 0, 0, 0, 0x20, 0xa8, 0xab, 0x1f
+    };
+    const int dynlen = 95;          // number of bits in the block
+
+    // Build an input buffer for inflate that is a multiple of eight bits in
+    // length, and that ends with the low bits bits of value.
+    unsigned char in[(dynlen + 3 * 10 + 16 + 7) / 8];
+    int have = 0;
+    if (bits & 1) {
+        // Insert an empty dynamic block to get to an odd number of bits, so
+        // when bits bits from value are appended, we are at an even number of
+        // bits.
+        memcpy(in, dyn, sizeof(dyn));
+        have = dynlen;
+    }
+    while ((have + bits) & 7)
+        // Insert empty fixed blocks until appending bits bits would put us on
+        // a byte boundary. This will insert at most three fixed blocks.
+        append_bits(2, 10, in, &have);
+
+    // Append the bits bits from value, which takes us to a byte boundary.
+    append_bits(value, bits, in, &have);
+
+    // Deliver the input to inflate(). There is no output space provided, but
+    // inflate() can't get stuck waiting on output not ingesting all of the
+    // provided input. The reason is that there will be at most 16 bits of
+    // input from value after the empty deflate blocks (which themselves
+    // generate no output). At least ten bits are needed to generate the first
+    // output byte from a fixed block. The last two bytes of the buffer have to
+    // be ingested in order to get ten bits, which is the most that value can
+    // occupy.
+    strm->avail_in = have >> 3;
+    strm->next_in = in;
+    strm->avail_out = 0;
+    strm->next_out = in;                // not used, but can't be NULL
+    return inflate(strm, Z_NO_FLUSH);
+}
+
+#else
+#  define INFLATEPRIME inflatePrime
+#endif
+
+// See comments in zran.h.
+ptrdiff_t deflate_index_extract(FILE *in, struct deflate_index *index,
+                                off_t offset, unsigned char *buf, size_t len) {
+    // Do a quick sanity check on the index.
+    if (index == NULL || index->have < 1 || index->list[0].out != 0)
+        return Z_STREAM_ERROR;
+
+    // If nothing to extract, return zero bytes extracted.
+    if (len == 0 || offset < 0 || offset >= index->length)
+        return 0;
+
+    // Find the access point closest to but not after offset.
+    int lo = -1, hi = index->have;
+    point_t *point = index->list;
+    while (hi - lo > 1) {
+        int mid = (lo + hi) >> 1;
+        if (offset < point[mid].out)
+            hi = mid;
+        else
+            lo = mid;
+    }
+    point += lo;
+
+    // Initialize the input file and prime the inflate engine to start there.
+    int ret = fseeko(in, point->in - (point->bits ? 1 : 0), SEEK_SET);
+    if (ret == -1)
+        return Z_ERRNO;
+    int ch = 0;
+    if (point->bits && (ch = getc(in)) == EOF)
+        return ferror(in) ? Z_ERRNO : Z_BUF_ERROR;
+    z_stream strm = {0};
+    ret = inflateInit2(&strm, RAW);
+    if (ret != Z_OK)
+        return ret;
+    if (point->bits)
+        INFLATEPRIME(&strm, point->bits, ch >> (8 - point->bits));
+    inflateSetDictionary(&strm, point->window, WINSIZE);
+
+    // Skip uncompressed bytes until offset reached, then satisfy request.
+    unsigned char input[CHUNK];
+    unsigned char discard[WINSIZE];
+    offset -= point->out;       // number of bytes to skip to get to offset
+    size_t left = len;          // number of bytes left to read after offset
+    do {
+        if (offset) {
+            // Discard up to offset uncompressed bytes.
+            strm.avail_out = offset < WINSIZE ? (unsigned)offset : WINSIZE;
+            strm.next_out = discard;
+        }
+        else {
+            // Uncompress up to left bytes into buf.
+            strm.avail_out = left < UINT_MAX ? (unsigned)left : UINT_MAX;
+            strm.next_out = buf + len - left;
+        }
+
+        // Uncompress, setting got to the number of bytes uncompressed.
+        if (strm.avail_in == 0) {
+            // Assure available input.
+            strm.avail_in = fread(input, 1, CHUNK, in);
+            if (strm.avail_in < CHUNK && ferror(in)) {
+                ret = Z_ERRNO;
+                break;
+            }
+            strm.next_in = input;
+        }
+        unsigned got = strm.avail_out;
+        ret = inflate(&strm, Z_NO_FLUSH);
+        got -= strm.avail_out;
+
+        // Update the appropriate count.
+        if (offset)
+            offset -= got;
+        else
+            left -= got;
+
+        // If we're at the end of a gzip member and there's more to read,
+        // continue to the next gzip member.
+        if (ret == Z_STREAM_END && index->mode == GZIP) {
+            // Discard the gzip trailer.
+            unsigned drop = 8;              // length of gzip trailer
+            if (strm.avail_in >= drop) {
+                strm.avail_in -= drop;
+                strm.next_in += drop;
+            }
+            else {
+                // Read and discard the remainder of the gzip trailer.
+                drop -= strm.avail_in;
+                strm.avail_in = 0;
+                do {
+                    if (getc(in) == EOF)
+                        // The input does not have a complete trailer.
+                        return ferror(in) ? Z_ERRNO : Z_BUF_ERROR;
+                } while (--drop);
+            }
+
+            if (strm.avail_in || ungetc(getc(in), in) != EOF) {
+                // There's more after the gzip trailer. Use inflate to skip the
+                // gzip header and resume the raw inflate there.
+                inflateReset2(&strm, GZIP);
+                do {
+                    if (strm.avail_in == 0) {
+                        strm.avail_in = fread(input, 1, CHUNK, in);
+                        if (strm.avail_in < CHUNK && ferror(in)) {
+                            ret = Z_ERRNO;
+                            break;
+                        }
+                        strm.next_in = input;
+                    }
+                    strm.avail_out = WINSIZE;
+                    strm.next_out = discard;
+                    ret = inflate(&strm, Z_BLOCK);  // stop at end of header
+                } while (ret == Z_OK && (strm.data_type & 0x80) == 0);
+                if (ret != Z_OK)
+                    break;
+                inflateReset2(&strm, RAW);
+            }
+        }
+
+        // Continue until we have the requested data, the deflate data has
+        // ended, or an error is encountered.
+    } while (ret == Z_OK && left);
+    inflateEnd(&strm);
+
+    // Return the number of uncompressed bytes read into buf, or the error.
+    return ret == Z_OK || ret == Z_STREAM_END ? len - left : ret;
+}
+
+#ifdef TEST
+
+#define SPAN 1048576L       // desired distance between access points
+#define LEN 16384           // number of bytes to extract
+
+// Demonstrate the use of deflate_index_build() and deflate_index_extract() by
+// processing the file provided on the command line, and extracting LEN bytes
+// from 2/3rds of the way through the uncompressed output, writing that to
+// stdout. An offset can be provided as the second argument, in which case the
+// data is extracted from there instead.
+int main(int argc, char **argv) {
+    // Open the input file.
+    if (argc < 2 || argc > 3) {
+        fprintf(stderr, "usage: zran file.raw [offset]\n");
+        return 1;
+    }
+    FILE *in = fopen(argv[1], "rb");
+    if (in == NULL) {
+        fprintf(stderr, "zran: could not open %s for reading\n", argv[1]);
+        return 1;
+    }
+
+    // Get optional offset.
+    off_t offset = -1;
+    if (argc == 3) {
+        char *end;
+        offset = strtoll(argv[2], &end, 10);
+        if (*end || offset < 0) {
+            fprintf(stderr, "zran: %s is not a valid offset\n", argv[2]);
+            return 1;
+        }
+    }
+
+    // Build index.
+    struct deflate_index *index = NULL;
+    int len = deflate_index_build(in, SPAN, &index);
+    if (len < 0) {
+        fclose(in);
+        switch (len) {
+        case Z_MEM_ERROR:
+            fprintf(stderr, "zran: out of memory\n");
+            break;
+        case Z_BUF_ERROR:
+            fprintf(stderr, "zran: %s ended prematurely\n", argv[1]);
+            break;
+        case Z_DATA_ERROR:
+            fprintf(stderr, "zran: compressed data error in %s\n", argv[1]);
+            break;
+        case Z_ERRNO:
+            fprintf(stderr, "zran: read error on %s\n", argv[1]);
+            break;
+        default:
+            fprintf(stderr, "zran: error %d while building index\n", len);
+        }
+        return 1;
+    }
+    fprintf(stderr, "zran: built index with %d access points\n", len);
+
+    // Use index by reading some bytes from an arbitrary offset.
+    unsigned char buf[LEN];
+    if (offset == -1)
+        offset = ((index->length + 1) << 1) / 3;
+    ptrdiff_t got = deflate_index_extract(in, index, offset, buf, LEN);
+    if (got < 0)
+        fprintf(stderr, "zran: extraction failed: %s error\n",
+                got == Z_MEM_ERROR ? "out of memory" : "input corrupted");
+    else {
+        fwrite(buf, 1, got, stdout);
+        fprintf(stderr, "zran: extracted %ld bytes at %lld\n", got, offset);
+    }
+
+    // Clean up and exit.
+    deflate_index_free(index);
+    fclose(in);
+    return 0;
+}
+
+#endif
diff --git a/compat/zlib/examples/zran.h b/compat/zlib/examples/zran.h
new file mode 100644
index 0000000..ebf780d
--- /dev/null
+++ b/compat/zlib/examples/zran.h
@@ -0,0 +1,51 @@
+/* zran.h -- example of deflated stream indexing and random access
+ * Copyright (C) 2005, 2012, 2018, 2023 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ * Version 1.3  18 Feb 2023  Mark Adler */
+
+#include <stdio.h>
+#include "zlib.h"
+
+// Access point.
+typedef struct point {
+    off_t out;          // offset in uncompressed data
+    off_t in;           // offset in compressed file of first full byte
+    int bits;           // 0, or number of bits (1-7) from byte at in-1
+    unsigned char window[32768];    // preceding 32K of uncompressed data
+} point_t;
+
+// Access point list.
+struct deflate_index {
+    int have;           // number of access points in list
+    int mode;           // -15 for raw, 15 for zlib, or 31 for gzip
+    off_t length;       // total length of uncompressed data
+    point_t *list;      // allocated list of access points
+};
+
+// Make one pass through a zlib, gzip, or raw deflate compressed stream and
+// build an index, with access points about every span bytes of uncompressed
+// output. gzip files with multiple members are fully indexed. span should be
+// chosen to balance the speed of random access against the memory requirements
+// of the list, which is about 32K bytes per access point. The return value is
+// the number of access points on success (>= 1), Z_MEM_ERROR for out of
+// memory, Z_BUF_ERROR for a premature end of input, Z_DATA_ERROR for a format
+// or verification error in the input file, or Z_ERRNO for a file read error.
+// On success, *built points to the resulting index.
+int deflate_index_build(FILE *in, off_t span, struct deflate_index **built);
+
+// Use the index to read len bytes from offset into buf. Return the number of
+// bytes read or a negative error code. If data is requested past the end of
+// the uncompressed data, then deflate_index_extract() will return a value less
+// than len, indicating how much was actually read into buf. If given a valid
+// index, this function should not return an error unless the file was modified
+// somehow since the index was generated, given that deflate_index_build() had
+// validated all of the input. If nevertheless there is a failure, Z_BUF_ERROR
+// is returned if the compressed data ends prematurely, Z_DATA_ERROR if the
+// deflate compressed data is not valid, Z_MEM_ERROR if out of memory,
+// Z_STREAM_ERROR if the index is not valid, or Z_ERRNO if there is an error
+// reading or seeking on the input file.
+ptrdiff_t deflate_index_extract(FILE *in, struct deflate_index *index,
+                                off_t offset, unsigned char *buf, size_t len);
+
+// Deallocate an index built by deflate_index_build().
+void deflate_index_free(struct deflate_index *index);
diff --git a/compat/zlib/gzclose.c b/compat/zlib/gzclose.c
new file mode 100644
index 0000000..48d6a86
--- /dev/null
+++ b/compat/zlib/gzclose.c
@@ -0,0 +1,23 @@
+/* gzclose.c -- zlib gzclose() function
+ * Copyright (C) 2004, 2010 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "gzguts.h"
+
+/* gzclose() is in a separate file so that it is linked in only if it is used.
+   That way the other gzclose functions can be used instead to avoid linking in
+   unneeded compression or decompression routines. */
+int ZEXPORT gzclose(gzFile file) {
+#ifndef NO_GZCOMPRESS
+    gz_statep state;
+
+    if (file == NULL)
+        return Z_STREAM_ERROR;
+    state = (gz_statep)file;
+
+    return state->mode == GZ_READ ? gzclose_r(file) : gzclose_w(file);
+#else
+    return gzclose_r(file);
+#endif
+}
diff --git a/compat/zlib/gzguts.h b/compat/zlib/gzguts.h
new file mode 100644
index 0000000..eba7208
--- /dev/null
+++ b/compat/zlib/gzguts.h
@@ -0,0 +1,214 @@
+/* gzguts.h -- zlib internal header definitions for gz* operations
+ * Copyright (C) 2004-2024 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#ifdef _LARGEFILE64_SOURCE
+#  ifndef _LARGEFILE_SOURCE
+#    define _LARGEFILE_SOURCE 1
+#  endif
+#  undef _FILE_OFFSET_BITS
+#  undef _TIME_BITS
+#endif
+
+#ifdef HAVE_HIDDEN
+#  define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
+#else
+#  define ZLIB_INTERNAL
+#endif
+
+#include <stdio.h>
+#include "zlib.h"
+#ifdef STDC
+#  include <string.h>
+#  include <stdlib.h>
+#  include <limits.h>
+#endif
+
+#ifndef _POSIX_SOURCE
+#  define _POSIX_SOURCE
+#endif
+#include <fcntl.h>
+
+#ifdef _WIN32
+#  include <stddef.h>
+#endif
+
+#if defined(__TURBOC__) || defined(_MSC_VER) || defined(_WIN32)
+#  include <io.h>
+#endif
+
+#if defined(_WIN32)
+#  define WIDECHAR
+#endif
+
+#ifdef WINAPI_FAMILY
+#  define open _open
+#  define read _read
+#  define write _write
+#  define close _close
+#endif
+
+#ifdef NO_DEFLATE       /* for compatibility with old definition */
+#  define NO_GZCOMPRESS
+#endif
+
+#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
+#  ifndef HAVE_VSNPRINTF
+#    define HAVE_VSNPRINTF
+#  endif
+#endif
+
+#if defined(__CYGWIN__)
+#  ifndef HAVE_VSNPRINTF
+#    define HAVE_VSNPRINTF
+#  endif
+#endif
+
+#if defined(MSDOS) && defined(__BORLANDC__) && (BORLANDC > 0x410)
+#  ifndef HAVE_VSNPRINTF
+#    define HAVE_VSNPRINTF
+#  endif
+#endif
+
+#ifndef HAVE_VSNPRINTF
+#  ifdef MSDOS
+/* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
+   but for now we just assume it doesn't. */
+#    define NO_vsnprintf
+#  endif
+#  ifdef __TURBOC__
+#    define NO_vsnprintf
+#  endif
+#  ifdef WIN32
+/* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
+#    if !defined(vsnprintf) && !defined(NO_vsnprintf)
+#      if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 )
+#         define vsnprintf _vsnprintf
+#      endif
+#    endif
+#  endif
+#  ifdef __SASC
+#    define NO_vsnprintf
+#  endif
+#  ifdef VMS
+#    define NO_vsnprintf
+#  endif
+#  ifdef __OS400__
+#    define NO_vsnprintf
+#  endif
+#  ifdef __MVS__
+#    define NO_vsnprintf
+#  endif
+#endif
+
+/* unlike snprintf (which is required in C99), _snprintf does not guarantee
+   null termination of the result -- however this is only used in gzlib.c where
+   the result is assured to fit in the space provided */
+#if defined(_MSC_VER) && _MSC_VER < 1900
+#  define snprintf _snprintf
+#endif
+
+#ifndef local
+#  define local static
+#endif
+/* since "static" is used to mean two completely different things in C, we
+   define "local" for the non-static meaning of "static", for readability
+   (compile with -Dlocal if your debugger can't find static symbols) */
+
+/* gz* functions always use library allocation functions */
+#ifndef STDC
+  extern voidp  malloc(uInt size);
+  extern void   free(voidpf ptr);
+#endif
+
+/* get errno and strerror definition */
+#if defined UNDER_CE
+#  include <windows.h>
+#  define zstrerror() gz_strwinerror((DWORD)GetLastError())
+#else
+#  ifndef NO_STRERROR
+#    include <errno.h>
+#    define zstrerror() strerror(errno)
+#  else
+#    define zstrerror() "stdio error (consult errno)"
+#  endif
+#endif
+
+/* provide prototypes for these when building zlib without LFS */
+#if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0
+    ZEXTERN gzFile ZEXPORT gzopen64(const char *, const char *);
+    ZEXTERN z_off64_t ZEXPORT gzseek64(gzFile, z_off64_t, int);
+    ZEXTERN z_off64_t ZEXPORT gztell64(gzFile);
+    ZEXTERN z_off64_t ZEXPORT gzoffset64(gzFile);
+#endif
+
+/* default memLevel */
+#if MAX_MEM_LEVEL >= 8
+#  define DEF_MEM_LEVEL 8
+#else
+#  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
+#endif
+
+/* default i/o buffer size -- double this for output when reading (this and
+   twice this must be able to fit in an unsigned type) */
+#define GZBUFSIZE 8192
+
+/* gzip modes, also provide a little integrity check on the passed structure */
+#define GZ_NONE 0
+#define GZ_READ 7247
+#define GZ_WRITE 31153
+#define GZ_APPEND 1     /* mode set to GZ_WRITE after the file is opened */
+
+/* values for gz_state how */
+#define LOOK 0      /* look for a gzip header */
+#define COPY 1      /* copy input directly */
+#define GZIP 2      /* decompress a gzip stream */
+
+/* internal gzip file state data structure */
+typedef struct {
+        /* exposed contents for gzgetc() macro */
+    struct gzFile_s x;      /* "x" for exposed */
+                            /* x.have: number of bytes available at x.next */
+                            /* x.next: next output data to deliver or write */
+                            /* x.pos: current position in uncompressed data */
+        /* used for both reading and writing */
+    int mode;               /* see gzip modes above */
+    int fd;                 /* file descriptor */
+    char *path;             /* path or fd for error messages */
+    unsigned size;          /* buffer size, zero if not allocated yet */
+    unsigned want;          /* requested buffer size, default is GZBUFSIZE */
+    unsigned char *in;      /* input buffer (double-sized when writing) */
+    unsigned char *out;     /* output buffer (double-sized when reading) */
+    int direct;             /* 0 if processing gzip, 1 if transparent */
+        /* just for reading */
+    int how;                /* 0: get header, 1: copy, 2: decompress */
+    z_off64_t start;        /* where the gzip data started, for rewinding */
+    int eof;                /* true if end of input file reached */
+    int past;               /* true if read requested past end */
+        /* just for writing */
+    int level;              /* compression level */
+    int strategy;           /* compression strategy */
+    int reset;              /* true if a reset is pending after a Z_FINISH */
+        /* seek request */
+    z_off64_t skip;         /* amount to skip (already rewound if backwards) */
+    int seek;               /* true if seek request pending */
+        /* error information */
+    int err;                /* error code */
+    char *msg;              /* error message */
+        /* zlib inflate or deflate stream */
+    z_stream strm;          /* stream structure in-place (not a pointer) */
+} gz_state;
+typedef gz_state FAR *gz_statep;
+
+/* shared functions */
+void ZLIB_INTERNAL gz_error(gz_statep, int, const char *);
+#if defined UNDER_CE
+char ZLIB_INTERNAL *gz_strwinerror(DWORD error);
+#endif
+
+/* GT_OFF(x), where x is an unsigned value, is true if x > maximum z_off64_t
+   value -- needed when comparing unsigned to z_off64_t, which is signed
+   (possible z_off64_t types off_t, off64_t, and long are all signed) */
+unsigned ZLIB_INTERNAL gz_intmax(void);
+#define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > gz_intmax())
diff --git a/compat/zlib/gzlib.c b/compat/zlib/gzlib.c
new file mode 100644
index 0000000..983153c
--- /dev/null
+++ b/compat/zlib/gzlib.c
@@ -0,0 +1,582 @@
+/* gzlib.c -- zlib functions common to reading and writing gzip files
+ * Copyright (C) 2004-2024 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "gzguts.h"
+
+#if defined(_WIN32) && !defined(__BORLANDC__)
+#  define LSEEK _lseeki64
+#else
+#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
+#  define LSEEK lseek64
+#else
+#  define LSEEK lseek
+#endif
+#endif
+
+#if defined UNDER_CE
+
+/* Map the Windows error number in ERROR to a locale-dependent error message
+   string and return a pointer to it.  Typically, the values for ERROR come
+   from GetLastError.
+
+   The string pointed to shall not be modified by the application, but may be
+   overwritten by a subsequent call to gz_strwinerror
+
+   The gz_strwinerror function does not change the current setting of
+   GetLastError. */
+char ZLIB_INTERNAL *gz_strwinerror(DWORD error) {
+    static char buf[1024];
+
+    wchar_t *msgbuf;
+    DWORD lasterr = GetLastError();
+    DWORD chars = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM
+        | FORMAT_MESSAGE_ALLOCATE_BUFFER,
+        NULL,
+        error,
+        0, /* Default language */
+        (LPVOID)&msgbuf,
+        0,
+        NULL);
+    if (chars != 0) {
+        /* If there is an \r\n appended, zap it.  */
+        if (chars >= 2
+            && msgbuf[chars - 2] == '\r' && msgbuf[chars - 1] == '\n') {
+            chars -= 2;
+            msgbuf[chars] = 0;
+        }
+
+        if (chars > sizeof (buf) - 1) {
+            chars = sizeof (buf) - 1;
+            msgbuf[chars] = 0;
+        }
+
+        wcstombs(buf, msgbuf, chars + 1);
+        LocalFree(msgbuf);
+    }
+    else {
+        sprintf(buf, "unknown win32 error (%ld)", error);
+    }
+
+    SetLastError(lasterr);
+    return buf;
+}
+
+#endif /* UNDER_CE */
+
+/* Reset gzip file state */
+local void gz_reset(gz_statep state) {
+    state->x.have = 0;              /* no output data available */
+    if (state->mode == GZ_READ) {   /* for reading ... */
+        state->eof = 0;             /* not at end of file */
+        state->past = 0;            /* have not read past end yet */
+        state->how = LOOK;          /* look for gzip header */
+    }
+    else                            /* for writing ... */
+        state->reset = 0;           /* no deflateReset pending */
+    state->seek = 0;                /* no seek request pending */
+    gz_error(state, Z_OK, NULL);    /* clear error */
+    state->x.pos = 0;               /* no uncompressed data yet */
+    state->strm.avail_in = 0;       /* no input data yet */
+}
+
+/* Open a gzip file either by name or file descriptor. */
+local gzFile gz_open(const void *path, int fd, const char *mode) {
+    gz_statep state;
+    z_size_t len;
+    int oflag;
+#ifdef O_CLOEXEC
+    int cloexec = 0;
+#endif
+#ifdef O_EXCL
+    int exclusive = 0;
+#endif
+
+    /* check input */
+    if (path == NULL)
+        return NULL;
+
+    /* allocate gzFile structure to return */
+    state = (gz_statep)malloc(sizeof(gz_state));
+    if (state == NULL)
+        return NULL;
+    state->size = 0;            /* no buffers allocated yet */
+    state->want = GZBUFSIZE;    /* requested buffer size */
+    state->msg = NULL;          /* no error message yet */
+
+    /* interpret mode */
+    state->mode = GZ_NONE;
+    state->level = Z_DEFAULT_COMPRESSION;
+    state->strategy = Z_DEFAULT_STRATEGY;
+    state->direct = 0;
+    while (*mode) {
+        if (*mode >= '0' && *mode <= '9')
+            state->level = *mode - '0';
+        else
+            switch (*mode) {
+            case 'r':
+                state->mode = GZ_READ;
+                break;
+#ifndef NO_GZCOMPRESS
+            case 'w':
+                state->mode = GZ_WRITE;
+                break;
+            case 'a':
+                state->mode = GZ_APPEND;
+                break;
+#endif
+            case '+':       /* can't read and write at the same time */
+                free(state);
+                return NULL;
+            case 'b':       /* ignore -- will request binary anyway */
+                break;
+#ifdef O_CLOEXEC
+            case 'e':
+                cloexec = 1;
+                break;
+#endif
+#ifdef O_EXCL
+            case 'x':
+                exclusive = 1;
+                break;
+#endif
+            case 'f':
+                state->strategy = Z_FILTERED;
+                break;
+            case 'h':
+                state->strategy = Z_HUFFMAN_ONLY;
+                break;
+            case 'R':
+                state->strategy = Z_RLE;
+                break;
+            case 'F':
+                state->strategy = Z_FIXED;
+                break;
+            case 'T':
+                state->direct = 1;
+                break;
+            default:        /* could consider as an error, but just ignore */
+                ;
+            }
+        mode++;
+    }
+
+    /* must provide an "r", "w", or "a" */
+    if (state->mode == GZ_NONE) {
+        free(state);
+        return NULL;
+    }
+
+    /* can't force transparent read */
+    if (state->mode == GZ_READ) {
+        if (state->direct) {
+            free(state);
+            return NULL;
+        }
+        state->direct = 1;      /* for empty file */
+    }
+
+    /* save the path name for error messages */
+#ifdef WIDECHAR
+    if (fd == -2) {
+        len = wcstombs(NULL, path, 0);
+        if (len == (z_size_t)-1)
+            len = 0;
+    }
+    else
+#endif
+        len = strlen((const char *)path);
+    state->path = (char *)malloc(len + 1);
+    if (state->path == NULL) {
+        free(state);
+        return NULL;
+    }
+#ifdef WIDECHAR
+    if (fd == -2)
+        if (len)
+            wcstombs(state->path, path, len + 1);
+        else
+            *(state->path) = 0;
+    else
+#endif
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+        (void)snprintf(state->path, len + 1, "%s", (const char *)path);
+#else
+        strcpy(state->path, path);
+#endif
+
+    /* compute the flags for open() */
+    oflag =
+#ifdef O_LARGEFILE
+        O_LARGEFILE |
+#endif
+#ifdef O_BINARY
+        O_BINARY |
+#endif
+#ifdef O_CLOEXEC
+        (cloexec ? O_CLOEXEC : 0) |
+#endif
+        (state->mode == GZ_READ ?
+         O_RDONLY :
+         (O_WRONLY | O_CREAT |
+#ifdef O_EXCL
+          (exclusive ? O_EXCL : 0) |
+#endif
+          (state->mode == GZ_WRITE ?
+           O_TRUNC :
+           O_APPEND)));
+
+    /* open the file with the appropriate flags (or just use fd) */
+    state->fd = fd > -1 ? fd : (
+#ifdef WIDECHAR
+        fd == -2 ? _wopen(path, oflag, 0666) :
+#endif
+        open((const char *)path, oflag, 0666));
+    if (state->fd == -1) {
+        free(state->path);
+        free(state);
+        return NULL;
+    }
+    if (state->mode == GZ_APPEND) {
+        LSEEK(state->fd, 0, SEEK_END);  /* so gzoffset() is correct */
+        state->mode = GZ_WRITE;         /* simplify later checks */
+    }
+
+    /* save the current position for rewinding (only if reading) */
+    if (state->mode == GZ_READ) {
+        state->start = LSEEK(state->fd, 0, SEEK_CUR);
+        if (state->start == -1) state->start = 0;
+    }
+
+    /* initialize stream */
+    gz_reset(state);
+
+    /* return stream */
+    return (gzFile)state;
+}
+
+/* -- see zlib.h -- */
+gzFile ZEXPORT gzopen(const char *path, const char *mode) {
+    return gz_open(path, -1, mode);
+}
+
+/* -- see zlib.h -- */
+gzFile ZEXPORT gzopen64(const char *path, const char *mode) {
+    return gz_open(path, -1, mode);
+}
+
+/* -- see zlib.h -- */
+gzFile ZEXPORT gzdopen(int fd, const char *mode) {
+    char *path;         /* identifier for error messages */
+    gzFile gz;
+
+    if (fd == -1 || (path = (char *)malloc(7 + 3 * sizeof(int))) == NULL)
+        return NULL;
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+    (void)snprintf(path, 7 + 3 * sizeof(int), "<fd:%d>", fd);
+#else
+    sprintf(path, "<fd:%d>", fd);   /* for debugging */
+#endif
+    gz = gz_open(path, fd, mode);
+    free(path);
+    return gz;
+}
+
+/* -- see zlib.h -- */
+#ifdef WIDECHAR
+gzFile ZEXPORT gzopen_w(const wchar_t *path, const char *mode) {
+    return gz_open(path, -2, mode);
+}
+#endif
+
+/* -- see zlib.h -- */
+int ZEXPORT gzbuffer(gzFile file, unsigned size) {
+    gz_statep state;
+
+    /* get internal structure and check integrity */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+        return -1;
+
+    /* make sure we haven't already allocated memory */
+    if (state->size != 0)
+        return -1;
+
+    /* check and set requested size */
+    if ((size << 1) < size)
+        return -1;              /* need to be able to double it */
+    if (size < 8)
+        size = 8;               /* needed to behave well with flushing */
+    state->want = size;
+    return 0;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzrewind(gzFile file) {
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+
+    /* check that we're reading and that there's no error */
+    if (state->mode != GZ_READ ||
+            (state->err != Z_OK && state->err != Z_BUF_ERROR))
+        return -1;
+
+    /* back up and start over */
+    if (LSEEK(state->fd, state->start, SEEK_SET) == -1)
+        return -1;
+    gz_reset(state);
+    return 0;
+}
+
+/* -- see zlib.h -- */
+z_off64_t ZEXPORT gzseek64(gzFile file, z_off64_t offset, int whence) {
+    unsigned n;
+    z_off64_t ret;
+    gz_statep state;
+
+    /* get internal structure and check integrity */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+        return -1;
+
+    /* check that there's no error */
+    if (state->err != Z_OK && state->err != Z_BUF_ERROR)
+        return -1;
+
+    /* can only seek from start or relative to current position */
+    if (whence != SEEK_SET && whence != SEEK_CUR)
+        return -1;
+
+    /* normalize offset to a SEEK_CUR specification */
+    if (whence == SEEK_SET)
+        offset -= state->x.pos;
+    else if (state->seek)
+        offset += state->skip;
+    state->seek = 0;
+
+    /* if within raw area while reading, just go there */
+    if (state->mode == GZ_READ && state->how == COPY &&
+            state->x.pos + offset >= 0) {
+        ret = LSEEK(state->fd, offset - (z_off64_t)state->x.have, SEEK_CUR);
+        if (ret == -1)
+            return -1;
+        state->x.have = 0;
+        state->eof = 0;
+        state->past = 0;
+        state->seek = 0;
+        gz_error(state, Z_OK, NULL);
+        state->strm.avail_in = 0;
+        state->x.pos += offset;
+        return state->x.pos;
+    }
+
+    /* calculate skip amount, rewinding if needed for back seek when reading */
+    if (offset < 0) {
+        if (state->mode != GZ_READ)         /* writing -- can't go backwards */
+            return -1;
+        offset += state->x.pos;
+        if (offset < 0)                     /* before start of file! */
+            return -1;
+        if (gzrewind(file) == -1)           /* rewind, then skip to offset */
+            return -1;
+    }
+
+    /* if reading, skip what's in output buffer (one less gzgetc() check) */
+    if (state->mode == GZ_READ) {
+        n = GT_OFF(state->x.have) || (z_off64_t)state->x.have > offset ?
+            (unsigned)offset : state->x.have;
+        state->x.have -= n;
+        state->x.next += n;
+        state->x.pos += n;
+        offset -= n;
+    }
+
+    /* request skip (if not zero) */
+    if (offset) {
+        state->seek = 1;
+        state->skip = offset;
+    }
+    return state->x.pos + offset;
+}
+
+/* -- see zlib.h -- */
+z_off_t ZEXPORT gzseek(gzFile file, z_off_t offset, int whence) {
+    z_off64_t ret;
+
+    ret = gzseek64(file, (z_off64_t)offset, whence);
+    return ret == (z_off_t)ret ? (z_off_t)ret : -1;
+}
+
+/* -- see zlib.h -- */
+z_off64_t ZEXPORT gztell64(gzFile file) {
+    gz_statep state;
+
+    /* get internal structure and check integrity */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+        return -1;
+
+    /* return position */
+    return state->x.pos + (state->seek ? state->skip : 0);
+}
+
+/* -- see zlib.h -- */
+z_off_t ZEXPORT gztell(gzFile file) {
+    z_off64_t ret;
+
+    ret = gztell64(file);
+    return ret == (z_off_t)ret ? (z_off_t)ret : -1;
+}
+
+/* -- see zlib.h -- */
+z_off64_t ZEXPORT gzoffset64(gzFile file) {
+    z_off64_t offset;
+    gz_statep state;
+
+    /* get internal structure and check integrity */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+        return -1;
+
+    /* compute and return effective offset in file */
+    offset = LSEEK(state->fd, 0, SEEK_CUR);
+    if (offset == -1)
+        return -1;
+    if (state->mode == GZ_READ)             /* reading */
+        offset -= state->strm.avail_in;     /* don't count buffered input */
+    return offset;
+}
+
+/* -- see zlib.h -- */
+z_off_t ZEXPORT gzoffset(gzFile file) {
+    z_off64_t ret;
+
+    ret = gzoffset64(file);
+    return ret == (z_off_t)ret ? (z_off_t)ret : -1;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzeof(gzFile file) {
+    gz_statep state;
+
+    /* get internal structure and check integrity */
+    if (file == NULL)
+        return 0;
+    state = (gz_statep)file;
+    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+        return 0;
+
+    /* return end-of-file state */
+    return state->mode == GZ_READ ? state->past : 0;
+}
+
+/* -- see zlib.h -- */
+const char * ZEXPORT gzerror(gzFile file, int *errnum) {
+    gz_statep state;
+
+    /* get internal structure and check integrity */
+    if (file == NULL)
+        return NULL;
+    state = (gz_statep)file;
+    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+        return NULL;
+
+    /* return error information */
+    if (errnum != NULL)
+        *errnum = state->err;
+    return state->err == Z_MEM_ERROR ? "out of memory" :
+                                       (state->msg == NULL ? "" : state->msg);
+}
+
+/* -- see zlib.h -- */
+void ZEXPORT gzclearerr(gzFile file) {
+    gz_statep state;
+
+    /* get internal structure and check integrity */
+    if (file == NULL)
+        return;
+    state = (gz_statep)file;
+    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+        return;
+
+    /* clear error and end-of-file */
+    if (state->mode == GZ_READ) {
+        state->eof = 0;
+        state->past = 0;
+    }
+    gz_error(state, Z_OK, NULL);
+}
+
+/* Create an error message in allocated memory and set state->err and
+   state->msg accordingly.  Free any previous error message already there.  Do
+   not try to free or allocate space if the error is Z_MEM_ERROR (out of
+   memory).  Simply save the error message as a static string.  If there is an
+   allocation failure constructing the error message, then convert the error to
+   out of memory. */
+void ZLIB_INTERNAL gz_error(gz_statep state, int err, const char *msg) {
+    /* free previously allocated message and clear */
+    if (state->msg != NULL) {
+        if (state->err != Z_MEM_ERROR)
+            free(state->msg);
+        state->msg = NULL;
+    }
+
+    /* if fatal, set state->x.have to 0 so that the gzgetc() macro fails */
+    if (err != Z_OK && err != Z_BUF_ERROR)
+        state->x.have = 0;
+
+    /* set error code, and if no message, then done */
+    state->err = err;
+    if (msg == NULL)
+        return;
+
+    /* for an out of memory error, return literal string when requested */
+    if (err == Z_MEM_ERROR)
+        return;
+
+    /* construct error message with path */
+    if ((state->msg = (char *)malloc(strlen(state->path) + strlen(msg) + 3)) ==
+            NULL) {
+        state->err = Z_MEM_ERROR;
+        return;
+    }
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+    (void)snprintf(state->msg, strlen(state->path) + strlen(msg) + 3,
+                   "%s%s%s", state->path, ": ", msg);
+#else
+    strcpy(state->msg, state->path);
+    strcat(state->msg, ": ");
+    strcat(state->msg, msg);
+#endif
+}
+
+/* portably return maximum value for an int (when limits.h presumed not
+   available) -- we need to do this to cover cases where 2's complement not
+   used, since C standard permits 1's complement and sign-bit representations,
+   otherwise we could just use ((unsigned)-1) >> 1 */
+unsigned ZLIB_INTERNAL gz_intmax(void) {
+#ifdef INT_MAX
+    return INT_MAX;
+#else
+    unsigned p = 1, q;
+    do {
+        q = p;
+        p <<= 1;
+        p++;
+    } while (p > q);
+    return q >> 1;
+#endif
+}
diff --git a/compat/zlib/gzread.c b/compat/zlib/gzread.c
new file mode 100644
index 0000000..4168cbc
--- /dev/null
+++ b/compat/zlib/gzread.c
@@ -0,0 +1,602 @@
+/* gzread.c -- zlib functions for reading gzip files
+ * Copyright (C) 2004-2017 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "gzguts.h"
+
+/* Use read() to load a buffer -- return -1 on error, otherwise 0.  Read from
+   state->fd, and update state->eof, state->err, and state->msg as appropriate.
+   This function needs to loop on read(), since read() is not guaranteed to
+   read the number of bytes requested, depending on the type of descriptor. */
+local int gz_load(gz_statep state, unsigned char *buf, unsigned len,
+                  unsigned *have) {
+    int ret;
+    unsigned get, max = ((unsigned)-1 >> 2) + 1;
+
+    *have = 0;
+    do {
+        get = len - *have;
+        if (get > max)
+            get = max;
+        ret = read(state->fd, buf + *have, get);
+        if (ret <= 0)
+            break;
+        *have += (unsigned)ret;
+    } while (*have < len);
+    if (ret < 0) {
+        gz_error(state, Z_ERRNO, zstrerror());
+        return -1;
+    }
+    if (ret == 0)
+        state->eof = 1;
+    return 0;
+}
+
+/* Load up input buffer and set eof flag if last data loaded -- return -1 on
+   error, 0 otherwise.  Note that the eof flag is set when the end of the input
+   file is reached, even though there may be unused data in the buffer.  Once
+   that data has been used, no more attempts will be made to read the file.
+   If strm->avail_in != 0, then the current data is moved to the beginning of
+   the input buffer, and then the remainder of the buffer is loaded with the
+   available data from the input file. */
+local int gz_avail(gz_statep state) {
+    unsigned got;
+    z_streamp strm = &(state->strm);
+
+    if (state->err != Z_OK && state->err != Z_BUF_ERROR)
+        return -1;
+    if (state->eof == 0) {
+        if (strm->avail_in) {       /* copy what's there to the start */
+            unsigned char *p = state->in;
+            unsigned const char *q = strm->next_in;
+            unsigned n = strm->avail_in;
+            do {
+                *p++ = *q++;
+            } while (--n);
+        }
+        if (gz_load(state, state->in + strm->avail_in,
+                    state->size - strm->avail_in, &got) == -1)
+            return -1;
+        strm->avail_in += got;
+        strm->next_in = state->in;
+    }
+    return 0;
+}
+
+/* Look for gzip header, set up for inflate or copy.  state->x.have must be 0.
+   If this is the first time in, allocate required memory.  state->how will be
+   left unchanged if there is no more input data available, will be set to COPY
+   if there is no gzip header and direct copying will be performed, or it will
+   be set to GZIP for decompression.  If direct copying, then leftover input
+   data from the input buffer will be copied to the output buffer.  In that
+   case, all further file reads will be directly to either the output buffer or
+   a user buffer.  If decompressing, the inflate state will be initialized.
+   gz_look() will return 0 on success or -1 on failure. */
+local int gz_look(gz_statep state) {
+    z_streamp strm = &(state->strm);
+
+    /* allocate read buffers and inflate memory */
+    if (state->size == 0) {
+        /* allocate buffers */
+        state->in = (unsigned char *)malloc(state->want);
+        state->out = (unsigned char *)malloc(state->want << 1);
+        if (state->in == NULL || state->out == NULL) {
+            free(state->out);
+            free(state->in);
+            gz_error(state, Z_MEM_ERROR, "out of memory");
+            return -1;
+        }
+        state->size = state->want;
+
+        /* allocate inflate memory */
+        state->strm.zalloc = Z_NULL;
+        state->strm.zfree = Z_NULL;
+        state->strm.opaque = Z_NULL;
+        state->strm.avail_in = 0;
+        state->strm.next_in = Z_NULL;
+        if (inflateInit2(&(state->strm), 15 + 16) != Z_OK) {    /* gunzip */
+            free(state->out);
+            free(state->in);
+            state->size = 0;
+            gz_error(state, Z_MEM_ERROR, "out of memory");
+            return -1;
+        }
+    }
+
+    /* get at least the magic bytes in the input buffer */
+    if (strm->avail_in < 2) {
+        if (gz_avail(state) == -1)
+            return -1;
+        if (strm->avail_in == 0)
+            return 0;
+    }
+
+    /* look for gzip magic bytes -- if there, do gzip decoding (note: there is
+       a logical dilemma here when considering the case of a partially written
+       gzip file, to wit, if a single 31 byte is written, then we cannot tell
+       whether this is a single-byte file, or just a partially written gzip
+       file -- for here we assume that if a gzip file is being written, then
+       the header will be written in a single operation, so that reading a
+       single byte is sufficient indication that it is not a gzip file) */
+    if (strm->avail_in > 1 &&
+            strm->next_in[0] == 31 && strm->next_in[1] == 139) {
+        inflateReset(strm);
+        state->how = GZIP;
+        state->direct = 0;
+        return 0;
+    }
+
+    /* no gzip header -- if we were decoding gzip before, then this is trailing
+       garbage.  Ignore the trailing garbage and finish. */
+    if (state->direct == 0) {
+        strm->avail_in = 0;
+        state->eof = 1;
+        state->x.have = 0;
+        return 0;
+    }
+
+    /* doing raw i/o, copy any leftover input to output -- this assumes that
+       the output buffer is larger than the input buffer, which also assures
+       space for gzungetc() */
+    state->x.next = state->out;
+    memcpy(state->x.next, strm->next_in, strm->avail_in);
+    state->x.have = strm->avail_in;
+    strm->avail_in = 0;
+    state->how = COPY;
+    state->direct = 1;
+    return 0;
+}
+
+/* Decompress from input to the provided next_out and avail_out in the state.
+   On return, state->x.have and state->x.next point to the just decompressed
+   data.  If the gzip stream completes, state->how is reset to LOOK to look for
+   the next gzip stream or raw data, once state->x.have is depleted.  Returns 0
+   on success, -1 on failure. */
+local int gz_decomp(gz_statep state) {
+    int ret = Z_OK;
+    unsigned had;
+    z_streamp strm = &(state->strm);
+
+    /* fill output buffer up to end of deflate stream */
+    had = strm->avail_out;
+    do {
+        /* get more input for inflate() */
+        if (strm->avail_in == 0 && gz_avail(state) == -1)
+            return -1;
+        if (strm->avail_in == 0) {
+            gz_error(state, Z_BUF_ERROR, "unexpected end of file");
+            break;
+        }
+
+        /* decompress and handle errors */
+        ret = inflate(strm, Z_NO_FLUSH);
+        if (ret == Z_STREAM_ERROR || ret == Z_NEED_DICT) {
+            gz_error(state, Z_STREAM_ERROR,
+                     "internal error: inflate stream corrupt");
+            return -1;
+        }
+        if (ret == Z_MEM_ERROR) {
+            gz_error(state, Z_MEM_ERROR, "out of memory");
+            return -1;
+        }
+        if (ret == Z_DATA_ERROR) {              /* deflate stream invalid */
+            gz_error(state, Z_DATA_ERROR,
+                     strm->msg == NULL ? "compressed data error" : strm->msg);
+            return -1;
+        }
+    } while (strm->avail_out && ret != Z_STREAM_END);
+
+    /* update available output */
+    state->x.have = had - strm->avail_out;
+    state->x.next = strm->next_out - state->x.have;
+
+    /* if the gzip stream completed successfully, look for another */
+    if (ret == Z_STREAM_END)
+        state->how = LOOK;
+
+    /* good decompression */
+    return 0;
+}
+
+/* Fetch data and put it in the output buffer.  Assumes state->x.have is 0.
+   Data is either copied from the input file or decompressed from the input
+   file depending on state->how.  If state->how is LOOK, then a gzip header is
+   looked for to determine whether to copy or decompress.  Returns -1 on error,
+   otherwise 0.  gz_fetch() will leave state->how as COPY or GZIP unless the
+   end of the input file has been reached and all data has been processed.  */
+local int gz_fetch(gz_statep state) {
+    z_streamp strm = &(state->strm);
+
+    do {
+        switch(state->how) {
+        case LOOK:      /* -> LOOK, COPY (only if never GZIP), or GZIP */
+            if (gz_look(state) == -1)
+                return -1;
+            if (state->how == LOOK)
+                return 0;
+            break;
+        case COPY:      /* -> COPY */
+            if (gz_load(state, state->out, state->size << 1, &(state->x.have))
+                    == -1)
+                return -1;
+            state->x.next = state->out;
+            return 0;
+        case GZIP:      /* -> GZIP or LOOK (if end of gzip stream) */
+            strm->avail_out = state->size << 1;
+            strm->next_out = state->out;
+            if (gz_decomp(state) == -1)
+                return -1;
+        }
+    } while (state->x.have == 0 && (!state->eof || strm->avail_in));
+    return 0;
+}
+
+/* Skip len uncompressed bytes of output.  Return -1 on error, 0 on success. */
+local int gz_skip(gz_statep state, z_off64_t len) {
+    unsigned n;
+
+    /* skip over len bytes or reach end-of-file, whichever comes first */
+    while (len)
+        /* skip over whatever is in output buffer */
+        if (state->x.have) {
+            n = GT_OFF(state->x.have) || (z_off64_t)state->x.have > len ?
+                (unsigned)len : state->x.have;
+            state->x.have -= n;
+            state->x.next += n;
+            state->x.pos += n;
+            len -= n;
+        }
+
+        /* output buffer empty -- return if we're at the end of the input */
+        else if (state->eof && state->strm.avail_in == 0)
+            break;
+
+        /* need more data to skip -- load up output buffer */
+        else {
+            /* get more output, looking for header if required */
+            if (gz_fetch(state) == -1)
+                return -1;
+        }
+    return 0;
+}
+
+/* Read len bytes into buf from file, or less than len up to the end of the
+   input.  Return the number of bytes read.  If zero is returned, either the
+   end of file was reached, or there was an error.  state->err must be
+   consulted in that case to determine which. */
+local z_size_t gz_read(gz_statep state, voidp buf, z_size_t len) {
+    z_size_t got;
+    unsigned n;
+
+    /* if len is zero, avoid unnecessary operations */
+    if (len == 0)
+        return 0;
+
+    /* process a skip request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_skip(state, state->skip) == -1)
+            return 0;
+    }
+
+    /* get len bytes to buf, or less than len if at the end */
+    got = 0;
+    do {
+        /* set n to the maximum amount of len that fits in an unsigned int */
+        n = (unsigned)-1;
+        if (n > len)
+            n = (unsigned)len;
+
+        /* first just try copying data from the output buffer */
+        if (state->x.have) {
+            if (state->x.have < n)
+                n = state->x.have;
+            memcpy(buf, state->x.next, n);
+            state->x.next += n;
+            state->x.have -= n;
+        }
+
+        /* output buffer empty -- return if we're at the end of the input */
+        else if (state->eof && state->strm.avail_in == 0) {
+            state->past = 1;        /* tried to read past end */
+            break;
+        }
+
+        /* need output data -- for small len or new stream load up our output
+           buffer */
+        else if (state->how == LOOK || n < (state->size << 1)) {
+            /* get more output, looking for header if required */
+            if (gz_fetch(state) == -1)
+                return 0;
+            continue;       /* no progress yet -- go back to copy above */
+            /* the copy above assures that we will leave with space in the
+               output buffer, allowing at least one gzungetc() to succeed */
+        }
+
+        /* large len -- read directly into user buffer */
+        else if (state->how == COPY) {      /* read directly */
+            if (gz_load(state, (unsigned char *)buf, n, &n) == -1)
+                return 0;
+        }
+
+        /* large len -- decompress directly into user buffer */
+        else {  /* state->how == GZIP */
+            state->strm.avail_out = n;
+            state->strm.next_out = (unsigned char *)buf;
+            if (gz_decomp(state) == -1)
+                return 0;
+            n = state->x.have;
+            state->x.have = 0;
+        }
+
+        /* update progress */
+        len -= n;
+        buf = (char *)buf + n;
+        got += n;
+        state->x.pos += n;
+    } while (len);
+
+    /* return number of bytes read into user buffer */
+    return got;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzread(gzFile file, voidp buf, unsigned len) {
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+
+    /* check that we're reading and that there's no (serious) error */
+    if (state->mode != GZ_READ ||
+            (state->err != Z_OK && state->err != Z_BUF_ERROR))
+        return -1;
+
+    /* since an int is returned, make sure len fits in one, otherwise return
+       with an error (this avoids a flaw in the interface) */
+    if ((int)len < 0) {
+        gz_error(state, Z_STREAM_ERROR, "request does not fit in an int");
+        return -1;
+    }
+
+    /* read len or fewer bytes to buf */
+    len = (unsigned)gz_read(state, buf, len);
+
+    /* check for an error */
+    if (len == 0 && state->err != Z_OK && state->err != Z_BUF_ERROR)
+        return -1;
+
+    /* return the number of bytes read (this is assured to fit in an int) */
+    return (int)len;
+}
+
+/* -- see zlib.h -- */
+z_size_t ZEXPORT gzfread(voidp buf, z_size_t size, z_size_t nitems, gzFile file) {
+    z_size_t len;
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return 0;
+    state = (gz_statep)file;
+
+    /* check that we're reading and that there's no (serious) error */
+    if (state->mode != GZ_READ ||
+            (state->err != Z_OK && state->err != Z_BUF_ERROR))
+        return 0;
+
+    /* compute bytes to read -- error on overflow */
+    len = nitems * size;
+    if (size && len / size != nitems) {
+        gz_error(state, Z_STREAM_ERROR, "request does not fit in a size_t");
+        return 0;
+    }
+
+    /* read len or fewer bytes to buf, return the number of full items read */
+    return len ? gz_read(state, buf, len) / size : 0;
+}
+
+/* -- see zlib.h -- */
+#ifdef Z_PREFIX_SET
+#  undef z_gzgetc
+#else
+#  undef gzgetc
+#endif
+int ZEXPORT gzgetc(gzFile file) {
+    unsigned char buf[1];
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+
+    /* check that we're reading and that there's no (serious) error */
+    if (state->mode != GZ_READ ||
+        (state->err != Z_OK && state->err != Z_BUF_ERROR))
+        return -1;
+
+    /* try output buffer (no need to check for skip request) */
+    if (state->x.have) {
+        state->x.have--;
+        state->x.pos++;
+        return *(state->x.next)++;
+    }
+
+    /* nothing there -- try gz_read() */
+    return gz_read(state, buf, 1) < 1 ? -1 : buf[0];
+}
+
+int ZEXPORT gzgetc_(gzFile file) {
+    return gzgetc(file);
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzungetc(int c, gzFile file) {
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+
+    /* in case this was just opened, set up the input buffer */
+    if (state->mode == GZ_READ && state->how == LOOK && state->x.have == 0)
+        (void)gz_look(state);
+
+    /* check that we're reading and that there's no (serious) error */
+    if (state->mode != GZ_READ ||
+        (state->err != Z_OK && state->err != Z_BUF_ERROR))
+        return -1;
+
+    /* process a skip request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_skip(state, state->skip) == -1)
+            return -1;
+    }
+
+    /* can't push EOF */
+    if (c < 0)
+        return -1;
+
+    /* if output buffer empty, put byte at end (allows more pushing) */
+    if (state->x.have == 0) {
+        state->x.have = 1;
+        state->x.next = state->out + (state->size << 1) - 1;
+        state->x.next[0] = (unsigned char)c;
+        state->x.pos--;
+        state->past = 0;
+        return c;
+    }
+
+    /* if no room, give up (must have already done a gzungetc()) */
+    if (state->x.have == (state->size << 1)) {
+        gz_error(state, Z_DATA_ERROR, "out of room to push characters");
+        return -1;
+    }
+
+    /* slide output data if needed and insert byte before existing data */
+    if (state->x.next == state->out) {
+        unsigned char *src = state->out + state->x.have;
+        unsigned char *dest = state->out + (state->size << 1);
+        while (src > state->out)
+            *--dest = *--src;
+        state->x.next = dest;
+    }
+    state->x.have++;
+    state->x.next--;
+    state->x.next[0] = (unsigned char)c;
+    state->x.pos--;
+    state->past = 0;
+    return c;
+}
+
+/* -- see zlib.h -- */
+char * ZEXPORT gzgets(gzFile file, char *buf, int len) {
+    unsigned left, n;
+    char *str;
+    unsigned char *eol;
+    gz_statep state;
+
+    /* check parameters and get internal structure */
+    if (file == NULL || buf == NULL || len < 1)
+        return NULL;
+    state = (gz_statep)file;
+
+    /* check that we're reading and that there's no (serious) error */
+    if (state->mode != GZ_READ ||
+        (state->err != Z_OK && state->err != Z_BUF_ERROR))
+        return NULL;
+
+    /* process a skip request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_skip(state, state->skip) == -1)
+            return NULL;
+    }
+
+    /* copy output bytes up to new line or len - 1, whichever comes first --
+       append a terminating zero to the string (we don't check for a zero in
+       the contents, let the user worry about that) */
+    str = buf;
+    left = (unsigned)len - 1;
+    if (left) do {
+        /* assure that something is in the output buffer */
+        if (state->x.have == 0 && gz_fetch(state) == -1)
+            return NULL;                /* error */
+        if (state->x.have == 0) {       /* end of file */
+            state->past = 1;            /* read past end */
+            break;                      /* return what we have */
+        }
+
+        /* look for end-of-line in current output buffer */
+        n = state->x.have > left ? left : state->x.have;
+        eol = (unsigned char *)memchr(state->x.next, '\n', n);
+        if (eol != NULL)
+            n = (unsigned)(eol - state->x.next) + 1;
+
+        /* copy through end-of-line, or remainder if not found */
+        memcpy(buf, state->x.next, n);
+        state->x.have -= n;
+        state->x.next += n;
+        state->x.pos += n;
+        left -= n;
+        buf += n;
+    } while (left && eol == NULL);
+
+    /* return terminated string, or if nothing, end of file */
+    if (buf == str)
+        return NULL;
+    buf[0] = 0;
+    return str;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzdirect(gzFile file) {
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return 0;
+    state = (gz_statep)file;
+
+    /* if the state is not known, but we can find out, then do so (this is
+       mainly for right after a gzopen() or gzdopen()) */
+    if (state->mode == GZ_READ && state->how == LOOK && state->x.have == 0)
+        (void)gz_look(state);
+
+    /* return 1 if transparent, 0 if processing a gzip stream */
+    return state->direct;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzclose_r(gzFile file) {
+    int ret, err;
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return Z_STREAM_ERROR;
+    state = (gz_statep)file;
+
+    /* check that we're reading */
+    if (state->mode != GZ_READ)
+        return Z_STREAM_ERROR;
+
+    /* free memory and close file */
+    if (state->size) {
+        inflateEnd(&(state->strm));
+        free(state->out);
+        free(state->in);
+    }
+    err = state->err == Z_BUF_ERROR ? Z_BUF_ERROR : Z_OK;
+    gz_error(state, Z_OK, NULL);
+    free(state->path);
+    ret = close(state->fd);
+    free(state);
+    return ret ? Z_ERRNO : err;
+}
diff --git a/compat/zlib/gzwrite.c b/compat/zlib/gzwrite.c
new file mode 100644
index 0000000..435b462
--- /dev/null
+++ b/compat/zlib/gzwrite.c
@@ -0,0 +1,631 @@
+/* gzwrite.c -- zlib functions for writing gzip files
+ * Copyright (C) 2004-2019 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "gzguts.h"
+
+/* Initialize state for writing a gzip file.  Mark initialization by setting
+   state->size to non-zero.  Return -1 on a memory allocation failure, or 0 on
+   success. */
+local int gz_init(gz_statep state) {
+    int ret;
+    z_streamp strm = &(state->strm);
+
+    /* allocate input buffer (double size for gzprintf) */
+    state->in = (unsigned char *)malloc(state->want << 1);
+    if (state->in == NULL) {
+        gz_error(state, Z_MEM_ERROR, "out of memory");
+        return -1;
+    }
+
+    /* only need output buffer and deflate state if compressing */
+    if (!state->direct) {
+        /* allocate output buffer */
+        state->out = (unsigned char *)malloc(state->want);
+        if (state->out == NULL) {
+            free(state->in);
+            gz_error(state, Z_MEM_ERROR, "out of memory");
+            return -1;
+        }
+
+        /* allocate deflate memory, set up for gzip compression */
+        strm->zalloc = Z_NULL;
+        strm->zfree = Z_NULL;
+        strm->opaque = Z_NULL;
+        ret = deflateInit2(strm, state->level, Z_DEFLATED,
+                           MAX_WBITS + 16, DEF_MEM_LEVEL, state->strategy);
+        if (ret != Z_OK) {
+            free(state->out);
+            free(state->in);
+            gz_error(state, Z_MEM_ERROR, "out of memory");
+            return -1;
+        }
+        strm->next_in = NULL;
+    }
+
+    /* mark state as initialized */
+    state->size = state->want;
+
+    /* initialize write buffer if compressing */
+    if (!state->direct) {
+        strm->avail_out = state->size;
+        strm->next_out = state->out;
+        state->x.next = strm->next_out;
+    }
+    return 0;
+}
+
+/* Compress whatever is at avail_in and next_in and write to the output file.
+   Return -1 if there is an error writing to the output file or if gz_init()
+   fails to allocate memory, otherwise 0.  flush is assumed to be a valid
+   deflate() flush value.  If flush is Z_FINISH, then the deflate() state is
+   reset to start a new gzip stream.  If gz->direct is true, then simply write
+   to the output file without compressing, and ignore flush. */
+local int gz_comp(gz_statep state, int flush) {
+    int ret, writ;
+    unsigned have, put, max = ((unsigned)-1 >> 2) + 1;
+    z_streamp strm = &(state->strm);
+
+    /* allocate memory if this is the first time through */
+    if (state->size == 0 && gz_init(state) == -1)
+        return -1;
+
+    /* write directly if requested */
+    if (state->direct) {
+        while (strm->avail_in) {
+            put = strm->avail_in > max ? max : strm->avail_in;
+            writ = write(state->fd, strm->next_in, put);
+            if (writ < 0) {
+                gz_error(state, Z_ERRNO, zstrerror());
+                return -1;
+            }
+            strm->avail_in -= (unsigned)writ;
+            strm->next_in += writ;
+        }
+        return 0;
+    }
+
+    /* check for a pending reset */
+    if (state->reset) {
+        /* don't start a new gzip member unless there is data to write */
+        if (strm->avail_in == 0)
+            return 0;
+        deflateReset(strm);
+        state->reset = 0;
+    }
+
+    /* run deflate() on provided input until it produces no more output */
+    ret = Z_OK;
+    do {
+        /* write out current buffer contents if full, or if flushing, but if
+           doing Z_FINISH then don't write until we get to Z_STREAM_END */
+        if (strm->avail_out == 0 || (flush != Z_NO_FLUSH &&
+            (flush != Z_FINISH || ret == Z_STREAM_END))) {
+            while (strm->next_out > state->x.next) {
+                put = strm->next_out - state->x.next > (int)max ? max :
+                      (unsigned)(strm->next_out - state->x.next);
+                writ = write(state->fd, state->x.next, put);
+                if (writ < 0) {
+                    gz_error(state, Z_ERRNO, zstrerror());
+                    return -1;
+                }
+                state->x.next += writ;
+            }
+            if (strm->avail_out == 0) {
+                strm->avail_out = state->size;
+                strm->next_out = state->out;
+                state->x.next = state->out;
+            }
+        }
+
+        /* compress */
+        have = strm->avail_out;
+        ret = deflate(strm, flush);
+        if (ret == Z_STREAM_ERROR) {
+            gz_error(state, Z_STREAM_ERROR,
+                      "internal error: deflate stream corrupt");
+            return -1;
+        }
+        have -= strm->avail_out;
+    } while (have);
+
+    /* if that completed a deflate stream, allow another to start */
+    if (flush == Z_FINISH)
+        state->reset = 1;
+
+    /* all done, no errors */
+    return 0;
+}
+
+/* Compress len zeros to output.  Return -1 on a write error or memory
+   allocation failure by gz_comp(), or 0 on success. */
+local int gz_zero(gz_statep state, z_off64_t len) {
+    int first;
+    unsigned n;
+    z_streamp strm = &(state->strm);
+
+    /* consume whatever's left in the input buffer */
+    if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1)
+        return -1;
+
+    /* compress len zeros (len guaranteed > 0) */
+    first = 1;
+    while (len) {
+        n = GT_OFF(state->size) || (z_off64_t)state->size > len ?
+            (unsigned)len : state->size;
+        if (first) {
+            memset(state->in, 0, n);
+            first = 0;
+        }
+        strm->avail_in = n;
+        strm->next_in = state->in;
+        state->x.pos += n;
+        if (gz_comp(state, Z_NO_FLUSH) == -1)
+            return -1;
+        len -= n;
+    }
+    return 0;
+}
+
+/* Write len bytes from buf to file.  Return the number of bytes written.  If
+   the returned value is less than len, then there was an error. */
+local z_size_t gz_write(gz_statep state, voidpc buf, z_size_t len) {
+    z_size_t put = len;
+
+    /* if len is zero, avoid unnecessary operations */
+    if (len == 0)
+        return 0;
+
+    /* allocate memory if this is the first time through */
+    if (state->size == 0 && gz_init(state) == -1)
+        return 0;
+
+    /* check for seek request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_zero(state, state->skip) == -1)
+            return 0;
+    }
+
+    /* for small len, copy to input buffer, otherwise compress directly */
+    if (len < state->size) {
+        /* copy to input buffer, compress when full */
+        do {
+            unsigned have, copy;
+
+            if (state->strm.avail_in == 0)
+                state->strm.next_in = state->in;
+            have = (unsigned)((state->strm.next_in + state->strm.avail_in) -
+                              state->in);
+            copy = state->size - have;
+            if (copy > len)
+                copy = (unsigned)len;
+            memcpy(state->in + have, buf, copy);
+            state->strm.avail_in += copy;
+            state->x.pos += copy;
+            buf = (const char *)buf + copy;
+            len -= copy;
+            if (len && gz_comp(state, Z_NO_FLUSH) == -1)
+                return 0;
+        } while (len);
+    }
+    else {
+        /* consume whatever's left in the input buffer */
+        if (state->strm.avail_in && gz_comp(state, Z_NO_FLUSH) == -1)
+            return 0;
+
+        /* directly compress user buffer to file */
+        state->strm.next_in = (z_const Bytef *)buf;
+        do {
+            unsigned n = (unsigned)-1;
+            if (n > len)
+                n = (unsigned)len;
+            state->strm.avail_in = n;
+            state->x.pos += n;
+            if (gz_comp(state, Z_NO_FLUSH) == -1)
+                return 0;
+            len -= n;
+        } while (len);
+    }
+
+    /* input was all buffered or compressed */
+    return put;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzwrite(gzFile file, voidpc buf, unsigned len) {
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return 0;
+    state = (gz_statep)file;
+
+    /* check that we're writing and that there's no error */
+    if (state->mode != GZ_WRITE || state->err != Z_OK)
+        return 0;
+
+    /* since an int is returned, make sure len fits in one, otherwise return
+       with an error (this avoids a flaw in the interface) */
+    if ((int)len < 0) {
+        gz_error(state, Z_DATA_ERROR, "requested length does not fit in int");
+        return 0;
+    }
+
+    /* write len bytes from buf (the return value will fit in an int) */
+    return (int)gz_write(state, buf, len);
+}
+
+/* -- see zlib.h -- */
+z_size_t ZEXPORT gzfwrite(voidpc buf, z_size_t size, z_size_t nitems,
+                          gzFile file) {
+    z_size_t len;
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return 0;
+    state = (gz_statep)file;
+
+    /* check that we're writing and that there's no error */
+    if (state->mode != GZ_WRITE || state->err != Z_OK)
+        return 0;
+
+    /* compute bytes to read -- error on overflow */
+    len = nitems * size;
+    if (size && len / size != nitems) {
+        gz_error(state, Z_STREAM_ERROR, "request does not fit in a size_t");
+        return 0;
+    }
+
+    /* write len bytes to buf, return the number of full items written */
+    return len ? gz_write(state, buf, len) / size : 0;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzputc(gzFile file, int c) {
+    unsigned have;
+    unsigned char buf[1];
+    gz_statep state;
+    z_streamp strm;
+
+    /* get internal structure */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+    strm = &(state->strm);
+
+    /* check that we're writing and that there's no error */
+    if (state->mode != GZ_WRITE || state->err != Z_OK)
+        return -1;
+
+    /* check for seek request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_zero(state, state->skip) == -1)
+            return -1;
+    }
+
+    /* try writing to input buffer for speed (state->size == 0 if buffer not
+       initialized) */
+    if (state->size) {
+        if (strm->avail_in == 0)
+            strm->next_in = state->in;
+        have = (unsigned)((strm->next_in + strm->avail_in) - state->in);
+        if (have < state->size) {
+            state->in[have] = (unsigned char)c;
+            strm->avail_in++;
+            state->x.pos++;
+            return c & 0xff;
+        }
+    }
+
+    /* no room in buffer or not initialized, use gz_write() */
+    buf[0] = (unsigned char)c;
+    if (gz_write(state, buf, 1) != 1)
+        return -1;
+    return c & 0xff;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzputs(gzFile file, const char *s) {
+    z_size_t len, put;
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+
+    /* check that we're writing and that there's no error */
+    if (state->mode != GZ_WRITE || state->err != Z_OK)
+        return -1;
+
+    /* write string */
+    len = strlen(s);
+    if ((int)len < 0 || (unsigned)len != len) {
+        gz_error(state, Z_STREAM_ERROR, "string length does not fit in int");
+        return -1;
+    }
+    put = gz_write(state, s, len);
+    return put < len ? -1 : (int)len;
+}
+
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#include <stdarg.h>
+
+/* -- see zlib.h -- */
+int ZEXPORTVA gzvprintf(gzFile file, const char *format, va_list va) {
+    int len;
+    unsigned left;
+    char *next;
+    gz_statep state;
+    z_streamp strm;
+
+    /* get internal structure */
+    if (file == NULL)
+        return Z_STREAM_ERROR;
+    state = (gz_statep)file;
+    strm = &(state->strm);
+
+    /* check that we're writing and that there's no error */
+    if (state->mode != GZ_WRITE || state->err != Z_OK)
+        return Z_STREAM_ERROR;
+
+    /* make sure we have some buffer space */
+    if (state->size == 0 && gz_init(state) == -1)
+        return state->err;
+
+    /* check for seek request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_zero(state, state->skip) == -1)
+            return state->err;
+    }
+
+    /* do the printf() into the input buffer, put length in len -- the input
+       buffer is double-sized just for this function, so there is guaranteed to
+       be state->size bytes available after the current contents */
+    if (strm->avail_in == 0)
+        strm->next_in = state->in;
+    next = (char *)(state->in + (strm->next_in - state->in) + strm->avail_in);
+    next[state->size - 1] = 0;
+#ifdef NO_vsnprintf
+#  ifdef HAS_vsprintf_void
+    (void)vsprintf(next, format, va);
+    for (len = 0; len < state->size; len++)
+        if (next[len] == 0) break;
+#  else
+    len = vsprintf(next, format, va);
+#  endif
+#else
+#  ifdef HAS_vsnprintf_void
+    (void)vsnprintf(next, state->size, format, va);
+    len = strlen(next);
+#  else
+    len = vsnprintf(next, state->size, format, va);
+#  endif
+#endif
+
+    /* check that printf() results fit in buffer */
+    if (len == 0 || (unsigned)len >= state->size || next[state->size - 1] != 0)
+        return 0;
+
+    /* update buffer and position, compress first half if past that */
+    strm->avail_in += (unsigned)len;
+    state->x.pos += len;
+    if (strm->avail_in >= state->size) {
+        left = strm->avail_in - state->size;
+        strm->avail_in = state->size;
+        if (gz_comp(state, Z_NO_FLUSH) == -1)
+            return state->err;
+        memmove(state->in, state->in + state->size, left);
+        strm->next_in = state->in;
+        strm->avail_in = left;
+    }
+    return len;
+}
+
+int ZEXPORTVA gzprintf(gzFile file, const char *format, ...) {
+    va_list va;
+    int ret;
+
+    va_start(va, format);
+    ret = gzvprintf(file, format, va);
+    va_end(va);
+    return ret;
+}
+
+#else /* !STDC && !Z_HAVE_STDARG_H */
+
+/* -- see zlib.h -- */
+int ZEXPORTVA gzprintf(gzFile file, const char *format, int a1, int a2, int a3,
+                       int a4, int a5, int a6, int a7, int a8, int a9, int a10,
+                       int a11, int a12, int a13, int a14, int a15, int a16,
+                       int a17, int a18, int a19, int a20) {
+    unsigned len, left;
+    char *next;
+    gz_statep state;
+    z_streamp strm;
+
+    /* get internal structure */
+    if (file == NULL)
+        return Z_STREAM_ERROR;
+    state = (gz_statep)file;
+    strm = &(state->strm);
+
+    /* check that can really pass pointer in ints */
+    if (sizeof(int) != sizeof(void *))
+        return Z_STREAM_ERROR;
+
+    /* check that we're writing and that there's no error */
+    if (state->mode != GZ_WRITE || state->err != Z_OK)
+        return Z_STREAM_ERROR;
+
+    /* make sure we have some buffer space */
+    if (state->size == 0 && gz_init(state) == -1)
+        return state->error;
+
+    /* check for seek request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_zero(state, state->skip) == -1)
+            return state->error;
+    }
+
+    /* do the printf() into the input buffer, put length in len -- the input
+       buffer is double-sized just for this function, so there is guaranteed to
+       be state->size bytes available after the current contents */
+    if (strm->avail_in == 0)
+        strm->next_in = state->in;
+    next = (char *)(strm->next_in + strm->avail_in);
+    next[state->size - 1] = 0;
+#ifdef NO_snprintf
+#  ifdef HAS_sprintf_void
+    sprintf(next, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12,
+            a13, a14, a15, a16, a17, a18, a19, a20);
+    for (len = 0; len < size; len++)
+        if (next[len] == 0)
+            break;
+#  else
+    len = sprintf(next, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11,
+                  a12, a13, a14, a15, a16, a17, a18, a19, a20);
+#  endif
+#else
+#  ifdef HAS_snprintf_void
+    snprintf(next, state->size, format, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+             a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
+    len = strlen(next);
+#  else
+    len = snprintf(next, state->size, format, a1, a2, a3, a4, a5, a6, a7, a8,
+                   a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
+#  endif
+#endif
+
+    /* check that printf() results fit in buffer */
+    if (len == 0 || len >= state->size || next[state->size - 1] != 0)
+        return 0;
+
+    /* update buffer and position, compress first half if past that */
+    strm->avail_in += len;
+    state->x.pos += len;
+    if (strm->avail_in >= state->size) {
+        left = strm->avail_in - state->size;
+        strm->avail_in = state->size;
+        if (gz_comp(state, Z_NO_FLUSH) == -1)
+            return state->err;
+        memmove(state->in, state->in + state->size, left);
+        strm->next_in = state->in;
+        strm->avail_in = left;
+    }
+    return (int)len;
+}
+
+#endif
+
+/* -- see zlib.h -- */
+int ZEXPORT gzflush(gzFile file, int flush) {
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return Z_STREAM_ERROR;
+    state = (gz_statep)file;
+
+    /* check that we're writing and that there's no error */
+    if (state->mode != GZ_WRITE || state->err != Z_OK)
+        return Z_STREAM_ERROR;
+
+    /* check flush parameter */
+    if (flush < 0 || flush > Z_FINISH)
+        return Z_STREAM_ERROR;
+
+    /* check for seek request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_zero(state, state->skip) == -1)
+            return state->err;
+    }
+
+    /* compress remaining data with requested flush */
+    (void)gz_comp(state, flush);
+    return state->err;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzsetparams(gzFile file, int level, int strategy) {
+    gz_statep state;
+    z_streamp strm;
+
+    /* get internal structure */
+    if (file == NULL)
+        return Z_STREAM_ERROR;
+    state = (gz_statep)file;
+    strm = &(state->strm);
+
+    /* check that we're writing and that there's no error */
+    if (state->mode != GZ_WRITE || state->err != Z_OK || state->direct)
+        return Z_STREAM_ERROR;
+
+    /* if no change is requested, then do nothing */
+    if (level == state->level && strategy == state->strategy)
+        return Z_OK;
+
+    /* check for seek request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_zero(state, state->skip) == -1)
+            return state->err;
+    }
+
+    /* change compression parameters for subsequent input */
+    if (state->size) {
+        /* flush previous input with previous parameters before changing */
+        if (strm->avail_in && gz_comp(state, Z_BLOCK) == -1)
+            return state->err;
+        deflateParams(strm, level, strategy);
+    }
+    state->level = level;
+    state->strategy = strategy;
+    return Z_OK;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzclose_w(gzFile file) {
+    int ret = Z_OK;
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return Z_STREAM_ERROR;
+    state = (gz_statep)file;
+
+    /* check that we're writing */
+    if (state->mode != GZ_WRITE)
+        return Z_STREAM_ERROR;
+
+    /* check for seek request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_zero(state, state->skip) == -1)
+            ret = state->err;
+    }
+
+    /* flush, free memory, and close file */
+    if (gz_comp(state, Z_FINISH) == -1)
+        ret = state->err;
+    if (state->size) {
+        if (!state->direct) {
+            (void)deflateEnd(&(state->strm));
+            free(state->out);
+        }
+        free(state->in);
+    }
+    gz_error(state, Z_OK, NULL);
+    free(state->path);
+    if (close(state->fd) == -1)
+        ret = Z_ERRNO;
+    free(state);
+    return ret;
+}
diff --git a/compat/zlib/infback.c b/compat/zlib/infback.c
new file mode 100644
index 0000000..e7b25b3
--- /dev/null
+++ b/compat/zlib/infback.c
@@ -0,0 +1,628 @@
+/* infback.c -- inflate using a call-back interface
+ * Copyright (C) 1995-2022 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/*
+   This code is largely copied from inflate.c.  Normally either infback.o or
+   inflate.o would be linked into an application--not both.  The interface
+   with inffast.c is retained so that optimized assembler-coded versions of
+   inflate_fast() can be used with either inflate.c or infback.c.
+ */
+
+#include "zutil.h"
+#include "inftrees.h"
+#include "inflate.h"
+#include "inffast.h"
+
+/*
+   strm provides memory allocation functions in zalloc and zfree, or
+   Z_NULL to use the library memory allocation functions.
+
+   windowBits is in the range 8..15, and window is a user-supplied
+   window and output buffer that is 2**windowBits bytes.
+ */
+int ZEXPORT inflateBackInit_(z_streamp strm, int windowBits,
+                             unsigned char FAR *window, const char *version,
+                             int stream_size) {
+    struct inflate_state FAR *state;
+
+    if (version == Z_NULL || version[0] != ZLIB_VERSION[0] ||
+        stream_size != (int)(sizeof(z_stream)))
+        return Z_VERSION_ERROR;
+    if (strm == Z_NULL || window == Z_NULL ||
+        windowBits < 8 || windowBits > 15)
+        return Z_STREAM_ERROR;
+    strm->msg = Z_NULL;                 /* in case we return an error */
+    if (strm->zalloc == (alloc_func)0) {
+#ifdef Z_SOLO
+        return Z_STREAM_ERROR;
+#else
+        strm->zalloc = zcalloc;
+        strm->opaque = (voidpf)0;
+#endif
+    }
+    if (strm->zfree == (free_func)0)
+#ifdef Z_SOLO
+        return Z_STREAM_ERROR;
+#else
+    strm->zfree = zcfree;
+#endif
+    state = (struct inflate_state FAR *)ZALLOC(strm, 1,
+                                               sizeof(struct inflate_state));
+    if (state == Z_NULL) return Z_MEM_ERROR;
+    Tracev((stderr, "inflate: allocated\n"));
+    strm->state = (struct internal_state FAR *)state;
+    state->dmax = 32768U;
+    state->wbits = (uInt)windowBits;
+    state->wsize = 1U << windowBits;
+    state->window = window;
+    state->wnext = 0;
+    state->whave = 0;
+    state->sane = 1;
+    return Z_OK;
+}
+
+/*
+   Return state with length and distance decoding tables and index sizes set to
+   fixed code decoding.  Normally this returns fixed tables from inffixed.h.
+   If BUILDFIXED is defined, then instead this routine builds the tables the
+   first time it's called, and returns those tables the first time and
+   thereafter.  This reduces the size of the code by about 2K bytes, in
+   exchange for a little execution time.  However, BUILDFIXED should not be
+   used for threaded applications, since the rewriting of the tables and virgin
+   may not be thread-safe.
+ */
+local void fixedtables(struct inflate_state FAR *state) {
+#ifdef BUILDFIXED
+    static int virgin = 1;
+    static code *lenfix, *distfix;
+    static code fixed[544];
+
+    /* build fixed huffman tables if first call (may not be thread safe) */
+    if (virgin) {
+        unsigned sym, bits;
+        static code *next;
+
+        /* literal/length table */
+        sym = 0;
+        while (sym < 144) state->lens[sym++] = 8;
+        while (sym < 256) state->lens[sym++] = 9;
+        while (sym < 280) state->lens[sym++] = 7;
+        while (sym < 288) state->lens[sym++] = 8;
+        next = fixed;
+        lenfix = next;
+        bits = 9;
+        inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work);
+
+        /* distance table */
+        sym = 0;
+        while (sym < 32) state->lens[sym++] = 5;
+        distfix = next;
+        bits = 5;
+        inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work);
+
+        /* do this just once */
+        virgin = 0;
+    }
+#else /* !BUILDFIXED */
+#   include "inffixed.h"
+#endif /* BUILDFIXED */
+    state->lencode = lenfix;
+    state->lenbits = 9;
+    state->distcode = distfix;
+    state->distbits = 5;
+}
+
+/* Macros for inflateBack(): */
+
+/* Load returned state from inflate_fast() */
+#define LOAD() \
+    do { \
+        put = strm->next_out; \
+        left = strm->avail_out; \
+        next = strm->next_in; \
+        have = strm->avail_in; \
+        hold = state->hold; \
+        bits = state->bits; \
+    } while (0)
+
+/* Set state from registers for inflate_fast() */
+#define RESTORE() \
+    do { \
+        strm->next_out = put; \
+        strm->avail_out = left; \
+        strm->next_in = next; \
+        strm->avail_in = have; \
+        state->hold = hold; \
+        state->bits = bits; \
+    } while (0)
+
+/* Clear the input bit accumulator */
+#define INITBITS() \
+    do { \
+        hold = 0; \
+        bits = 0; \
+    } while (0)
+
+/* Assure that some input is available.  If input is requested, but denied,
+   then return a Z_BUF_ERROR from inflateBack(). */
+#define PULL() \
+    do { \
+        if (have == 0) { \
+            have = in(in_desc, &next); \
+            if (have == 0) { \
+                next = Z_NULL; \
+                ret = Z_BUF_ERROR; \
+                goto inf_leave; \
+            } \
+        } \
+    } while (0)
+
+/* Get a byte of input into the bit accumulator, or return from inflateBack()
+   with an error if there is no input available. */
+#define PULLBYTE() \
+    do { \
+        PULL(); \
+        have--; \
+        hold += (unsigned long)(*next++) << bits; \
+        bits += 8; \
+    } while (0)
+
+/* Assure that there are at least n bits in the bit accumulator.  If there is
+   not enough available input to do that, then return from inflateBack() with
+   an error. */
+#define NEEDBITS(n) \
+    do { \
+        while (bits < (unsigned)(n)) \
+            PULLBYTE(); \
+    } while (0)
+
+/* Return the low n bits of the bit accumulator (n < 16) */
+#define BITS(n) \
+    ((unsigned)hold & ((1U << (n)) - 1))
+
+/* Remove n bits from the bit accumulator */
+#define DROPBITS(n) \
+    do { \
+        hold >>= (n); \
+        bits -= (unsigned)(n); \
+    } while (0)
+
+/* Remove zero to seven bits as needed to go to a byte boundary */
+#define BYTEBITS() \
+    do { \
+        hold >>= bits & 7; \
+        bits -= bits & 7; \
+    } while (0)
+
+/* Assure that some output space is available, by writing out the window
+   if it's full.  If the write fails, return from inflateBack() with a
+   Z_BUF_ERROR. */
+#define ROOM() \
+    do { \
+        if (left == 0) { \
+            put = state->window; \
+            left = state->wsize; \
+            state->whave = left; \
+            if (out(out_desc, put, left)) { \
+                ret = Z_BUF_ERROR; \
+                goto inf_leave; \
+            } \
+        } \
+    } while (0)
+
+/*
+   strm provides the memory allocation functions and window buffer on input,
+   and provides information on the unused input on return.  For Z_DATA_ERROR
+   returns, strm will also provide an error message.
+
+   in() and out() are the call-back input and output functions.  When
+   inflateBack() needs more input, it calls in().  When inflateBack() has
+   filled the window with output, or when it completes with data in the
+   window, it calls out() to write out the data.  The application must not
+   change the provided input until in() is called again or inflateBack()
+   returns.  The application must not change the window/output buffer until
+   inflateBack() returns.
+
+   in() and out() are called with a descriptor parameter provided in the
+   inflateBack() call.  This parameter can be a structure that provides the
+   information required to do the read or write, as well as accumulated
+   information on the input and output such as totals and check values.
+
+   in() should return zero on failure.  out() should return non-zero on
+   failure.  If either in() or out() fails, than inflateBack() returns a
+   Z_BUF_ERROR.  strm->next_in can be checked for Z_NULL to see whether it
+   was in() or out() that caused in the error.  Otherwise,  inflateBack()
+   returns Z_STREAM_END on success, Z_DATA_ERROR for an deflate format
+   error, or Z_MEM_ERROR if it could not allocate memory for the state.
+   inflateBack() can also return Z_STREAM_ERROR if the input parameters
+   are not correct, i.e. strm is Z_NULL or the state was not initialized.
+ */
+int ZEXPORT inflateBack(z_streamp strm, in_func in, void FAR *in_desc,
+                        out_func out, void FAR *out_desc) {
+    struct inflate_state FAR *state;
+    z_const unsigned char FAR *next;    /* next input */
+    unsigned char FAR *put;     /* next output */
+    unsigned have, left;        /* available input and output */
+    unsigned long hold;         /* bit buffer */
+    unsigned bits;              /* bits in bit buffer */
+    unsigned copy;              /* number of stored or match bytes to copy */
+    unsigned char FAR *from;    /* where to copy match bytes from */
+    code here;                  /* current decoding table entry */
+    code last;                  /* parent table entry */
+    unsigned len;               /* length to copy for repeats, bits to drop */
+    int ret;                    /* return code */
+    static const unsigned short order[19] = /* permutation of code lengths */
+        {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
+
+    /* Check that the strm exists and that the state was initialized */
+    if (strm == Z_NULL || strm->state == Z_NULL)
+        return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+
+    /* Reset the state */
+    strm->msg = Z_NULL;
+    state->mode = TYPE;
+    state->last = 0;
+    state->whave = 0;
+    next = strm->next_in;
+    have = next != Z_NULL ? strm->avail_in : 0;
+    hold = 0;
+    bits = 0;
+    put = state->window;
+    left = state->wsize;
+
+    /* Inflate until end of block marked as last */
+    for (;;)
+        switch (state->mode) {
+        case TYPE:
+            /* determine and dispatch block type */
+            if (state->last) {
+                BYTEBITS();
+                state->mode = DONE;
+                break;
+            }
+            NEEDBITS(3);
+            state->last = BITS(1);
+            DROPBITS(1);
+            switch (BITS(2)) {
+            case 0:                             /* stored block */
+                Tracev((stderr, "inflate:     stored block%s\n",
+                        state->last ? " (last)" : ""));
+                state->mode = STORED;
+                break;
+            case 1:                             /* fixed block */
+                fixedtables(state);
+                Tracev((stderr, "inflate:     fixed codes block%s\n",
+                        state->last ? " (last)" : ""));
+                state->mode = LEN;              /* decode codes */
+                break;
+            case 2:                             /* dynamic block */
+                Tracev((stderr, "inflate:     dynamic codes block%s\n",
+                        state->last ? " (last)" : ""));
+                state->mode = TABLE;
+                break;
+            case 3:
+                strm->msg = (char *)"invalid block type";
+                state->mode = BAD;
+            }
+            DROPBITS(2);
+            break;
+
+        case STORED:
+            /* get and verify stored block length */
+            BYTEBITS();                         /* go to byte boundary */
+            NEEDBITS(32);
+            if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) {
+                strm->msg = (char *)"invalid stored block lengths";
+                state->mode = BAD;
+                break;
+            }
+            state->length = (unsigned)hold & 0xffff;
+            Tracev((stderr, "inflate:       stored length %u\n",
+                    state->length));
+            INITBITS();
+
+            /* copy stored block from input to output */
+            while (state->length != 0) {
+                copy = state->length;
+                PULL();
+                ROOM();
+                if (copy > have) copy = have;
+                if (copy > left) copy = left;
+                zmemcpy(put, next, copy);
+                have -= copy;
+                next += copy;
+                left -= copy;
+                put += copy;
+                state->length -= copy;
+            }
+            Tracev((stderr, "inflate:       stored end\n"));
+            state->mode = TYPE;
+            break;
+
+        case TABLE:
+            /* get dynamic table entries descriptor */
+            NEEDBITS(14);
+            state->nlen = BITS(5) + 257;
+            DROPBITS(5);
+            state->ndist = BITS(5) + 1;
+            DROPBITS(5);
+            state->ncode = BITS(4) + 4;
+            DROPBITS(4);
+#ifndef PKZIP_BUG_WORKAROUND
+            if (state->nlen > 286 || state->ndist > 30) {
+                strm->msg = (char *)"too many length or distance symbols";
+                state->mode = BAD;
+                break;
+            }
+#endif
+            Tracev((stderr, "inflate:       table sizes ok\n"));
+
+            /* get code length code lengths (not a typo) */
+            state->have = 0;
+            while (state->have < state->ncode) {
+                NEEDBITS(3);
+                state->lens[order[state->have++]] = (unsigned short)BITS(3);
+                DROPBITS(3);
+            }
+            while (state->have < 19)
+                state->lens[order[state->have++]] = 0;
+            state->next = state->codes;
+            state->lencode = (code const FAR *)(state->next);
+            state->lenbits = 7;
+            ret = inflate_table(CODES, state->lens, 19, &(state->next),
+                                &(state->lenbits), state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid code lengths set";
+                state->mode = BAD;
+                break;
+            }
+            Tracev((stderr, "inflate:       code lengths ok\n"));
+
+            /* get length and distance code code lengths */
+            state->have = 0;
+            while (state->have < state->nlen + state->ndist) {
+                for (;;) {
+                    here = state->lencode[BITS(state->lenbits)];
+                    if ((unsigned)(here.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                if (here.val < 16) {
+                    DROPBITS(here.bits);
+                    state->lens[state->have++] = here.val;
+                }
+                else {
+                    if (here.val == 16) {
+                        NEEDBITS(here.bits + 2);
+                        DROPBITS(here.bits);
+                        if (state->have == 0) {
+                            strm->msg = (char *)"invalid bit length repeat";
+                            state->mode = BAD;
+                            break;
+                        }
+                        len = (unsigned)(state->lens[state->have - 1]);
+                        copy = 3 + BITS(2);
+                        DROPBITS(2);
+                    }
+                    else if (here.val == 17) {
+                        NEEDBITS(here.bits + 3);
+                        DROPBITS(here.bits);
+                        len = 0;
+                        copy = 3 + BITS(3);
+                        DROPBITS(3);
+                    }
+                    else {
+                        NEEDBITS(here.bits + 7);
+                        DROPBITS(here.bits);
+                        len = 0;
+                        copy = 11 + BITS(7);
+                        DROPBITS(7);
+                    }
+                    if (state->have + copy > state->nlen + state->ndist) {
+                        strm->msg = (char *)"invalid bit length repeat";
+                        state->mode = BAD;
+                        break;
+                    }
+                    while (copy--)
+                        state->lens[state->have++] = (unsigned short)len;
+                }
+            }
+
+            /* handle error breaks in while */
+            if (state->mode == BAD) break;
+
+            /* check for end-of-block code (better have one) */
+            if (state->lens[256] == 0) {
+                strm->msg = (char *)"invalid code -- missing end-of-block";
+                state->mode = BAD;
+                break;
+            }
+
+            /* build code tables -- note: do not change the lenbits or distbits
+               values here (9 and 6) without reading the comments in inftrees.h
+               concerning the ENOUGH constants, which depend on those values */
+            state->next = state->codes;
+            state->lencode = (code const FAR *)(state->next);
+            state->lenbits = 9;
+            ret = inflate_table(LENS, state->lens, state->nlen, &(state->next),
+                                &(state->lenbits), state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid literal/lengths set";
+                state->mode = BAD;
+                break;
+            }
+            state->distcode = (code const FAR *)(state->next);
+            state->distbits = 6;
+            ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist,
+                            &(state->next), &(state->distbits), state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid distances set";
+                state->mode = BAD;
+                break;
+            }
+            Tracev((stderr, "inflate:       codes ok\n"));
+            state->mode = LEN;
+                /* fallthrough */
+
+        case LEN:
+            /* use inflate_fast() if we have enough input and output */
+            if (have >= 6 && left >= 258) {
+                RESTORE();
+                if (state->whave < state->wsize)
+                    state->whave = state->wsize - left;
+                inflate_fast(strm, state->wsize);
+                LOAD();
+                break;
+            }
+
+            /* get a literal, length, or end-of-block code */
+            for (;;) {
+                here = state->lencode[BITS(state->lenbits)];
+                if ((unsigned)(here.bits) <= bits) break;
+                PULLBYTE();
+            }
+            if (here.op && (here.op & 0xf0) == 0) {
+                last = here;
+                for (;;) {
+                    here = state->lencode[last.val +
+                            (BITS(last.bits + last.op) >> last.bits)];
+                    if ((unsigned)(last.bits + here.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                DROPBITS(last.bits);
+            }
+            DROPBITS(here.bits);
+            state->length = (unsigned)here.val;
+
+            /* process literal */
+            if (here.op == 0) {
+                Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
+                        "inflate:         literal '%c'\n" :
+                        "inflate:         literal 0x%02x\n", here.val));
+                ROOM();
+                *put++ = (unsigned char)(state->length);
+                left--;
+                state->mode = LEN;
+                break;
+            }
+
+            /* process end of block */
+            if (here.op & 32) {
+                Tracevv((stderr, "inflate:         end of block\n"));
+                state->mode = TYPE;
+                break;
+            }
+
+            /* invalid code */
+            if (here.op & 64) {
+                strm->msg = (char *)"invalid literal/length code";
+                state->mode = BAD;
+                break;
+            }
+
+            /* length code -- get extra bits, if any */
+            state->extra = (unsigned)(here.op) & 15;
+            if (state->extra != 0) {
+                NEEDBITS(state->extra);
+                state->length += BITS(state->extra);
+                DROPBITS(state->extra);
+            }
+            Tracevv((stderr, "inflate:         length %u\n", state->length));
+
+            /* get distance code */
+            for (;;) {
+                here = state->distcode[BITS(state->distbits)];
+                if ((unsigned)(here.bits) <= bits) break;
+                PULLBYTE();
+            }
+            if ((here.op & 0xf0) == 0) {
+                last = here;
+                for (;;) {
+                    here = state->distcode[last.val +
+                            (BITS(last.bits + last.op) >> last.bits)];
+                    if ((unsigned)(last.bits + here.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                DROPBITS(last.bits);
+            }
+            DROPBITS(here.bits);
+            if (here.op & 64) {
+                strm->msg = (char *)"invalid distance code";
+                state->mode = BAD;
+                break;
+            }
+            state->offset = (unsigned)here.val;
+
+            /* get distance extra bits, if any */
+            state->extra = (unsigned)(here.op) & 15;
+            if (state->extra != 0) {
+                NEEDBITS(state->extra);
+                state->offset += BITS(state->extra);
+                DROPBITS(state->extra);
+            }
+            if (state->offset > state->wsize - (state->whave < state->wsize ?
+                                                left : 0)) {
+                strm->msg = (char *)"invalid distance too far back";
+                state->mode = BAD;
+                break;
+            }
+            Tracevv((stderr, "inflate:         distance %u\n", state->offset));
+
+            /* copy match from window to output */
+            do {
+                ROOM();
+                copy = state->wsize - state->offset;
+                if (copy < left) {
+                    from = put + copy;
+                    copy = left - copy;
+                }
+                else {
+                    from = put - state->offset;
+                    copy = left;
+                }
+                if (copy > state->length) copy = state->length;
+                state->length -= copy;
+                left -= copy;
+                do {
+                    *put++ = *from++;
+                } while (--copy);
+            } while (state->length != 0);
+            break;
+
+        case DONE:
+            /* inflate stream terminated properly */
+            ret = Z_STREAM_END;
+            goto inf_leave;
+
+        case BAD:
+            ret = Z_DATA_ERROR;
+            goto inf_leave;
+
+        default:
+            /* can't happen, but makes compilers happy */
+            ret = Z_STREAM_ERROR;
+            goto inf_leave;
+        }
+
+    /* Write leftover output and return unused input */
+  inf_leave:
+    if (left < state->wsize) {
+        if (out(out_desc, state->window, state->wsize - left) &&
+            ret == Z_STREAM_END)
+            ret = Z_BUF_ERROR;
+    }
+    strm->next_in = next;
+    strm->avail_in = have;
+    return ret;
+}
+
+int ZEXPORT inflateBackEnd(z_streamp strm) {
+    if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0)
+        return Z_STREAM_ERROR;
+    ZFREE(strm, strm->state);
+    strm->state = Z_NULL;
+    Tracev((stderr, "inflate: end\n"));
+    return Z_OK;
+}
diff --git a/compat/zlib/inffast.c b/compat/zlib/inffast.c
new file mode 100644
index 0000000..9354676
--- /dev/null
+++ b/compat/zlib/inffast.c
@@ -0,0 +1,320 @@
+/* inffast.c -- fast decoding
+ * Copyright (C) 1995-2017 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "zutil.h"
+#include "inftrees.h"
+#include "inflate.h"
+#include "inffast.h"
+
+#ifdef ASMINF
+#  pragma message("Assembler code may have bugs -- use at your own risk")
+#else
+
+/*
+   Decode literal, length, and distance codes and write out the resulting
+   literal and match bytes until either not enough input or output is
+   available, an end-of-block is encountered, or a data error is encountered.
+   When large enough input and output buffers are supplied to inflate(), for
+   example, a 16K input buffer and a 64K output buffer, more than 95% of the
+   inflate execution time is spent in this routine.
+
+   Entry assumptions:
+
+        state->mode == LEN
+        strm->avail_in >= 6
+        strm->avail_out >= 258
+        start >= strm->avail_out
+        state->bits < 8
+
+   On return, state->mode is one of:
+
+        LEN -- ran out of enough output space or enough available input
+        TYPE -- reached end of block code, inflate() to interpret next block
+        BAD -- error in block data
+
+   Notes:
+
+    - The maximum input bits used by a length/distance pair is 15 bits for the
+      length code, 5 bits for the length extra, 15 bits for the distance code,
+      and 13 bits for the distance extra.  This totals 48 bits, or six bytes.
+      Therefore if strm->avail_in >= 6, then there is enough input to avoid
+      checking for available input while decoding.
+
+    - The maximum bytes that a single length/distance pair can output is 258
+      bytes, which is the maximum length that can be coded.  inflate_fast()
+      requires strm->avail_out >= 258 for each loop to avoid checking for
+      output space.
+ */
+void ZLIB_INTERNAL inflate_fast(z_streamp strm, unsigned start) {
+    struct inflate_state FAR *state;
+    z_const unsigned char FAR *in;      /* local strm->next_in */
+    z_const unsigned char FAR *last;    /* have enough input while in < last */
+    unsigned char FAR *out;     /* local strm->next_out */
+    unsigned char FAR *beg;     /* inflate()'s initial strm->next_out */
+    unsigned char FAR *end;     /* while out < end, enough space available */
+#ifdef INFLATE_STRICT
+    unsigned dmax;              /* maximum distance from zlib header */
+#endif
+    unsigned wsize;             /* window size or zero if not using window */
+    unsigned whave;             /* valid bytes in the window */
+    unsigned wnext;             /* window write index */
+    unsigned char FAR *window;  /* allocated sliding window, if wsize != 0 */
+    unsigned long hold;         /* local strm->hold */
+    unsigned bits;              /* local strm->bits */
+    code const FAR *lcode;      /* local strm->lencode */
+    code const FAR *dcode;      /* local strm->distcode */
+    unsigned lmask;             /* mask for first level of length codes */
+    unsigned dmask;             /* mask for first level of distance codes */
+    code const *here;           /* retrieved table entry */
+    unsigned op;                /* code bits, operation, extra bits, or */
+                                /*  window position, window bytes to copy */
+    unsigned len;               /* match length, unused bytes */
+    unsigned dist;              /* match distance */
+    unsigned char FAR *from;    /* where to copy match from */
+
+    /* copy state to local variables */
+    state = (struct inflate_state FAR *)strm->state;
+    in = strm->next_in;
+    last = in + (strm->avail_in - 5);
+    out = strm->next_out;
+    beg = out - (start - strm->avail_out);
+    end = out + (strm->avail_out - 257);
+#ifdef INFLATE_STRICT
+    dmax = state->dmax;
+#endif
+    wsize = state->wsize;
+    whave = state->whave;
+    wnext = state->wnext;
+    window = state->window;
+    hold = state->hold;
+    bits = state->bits;
+    lcode = state->lencode;
+    dcode = state->distcode;
+    lmask = (1U << state->lenbits) - 1;
+    dmask = (1U << state->distbits) - 1;
+
+    /* decode literals and length/distances until end-of-block or not enough
+       input data or output space */
+    do {
+        if (bits < 15) {
+            hold += (unsigned long)(*in++) << bits;
+            bits += 8;
+            hold += (unsigned long)(*in++) << bits;
+            bits += 8;
+        }
+        here = lcode + (hold & lmask);
+      dolen:
+        op = (unsigned)(here->bits);
+        hold >>= op;
+        bits -= op;
+        op = (unsigned)(here->op);
+        if (op == 0) {                          /* literal */
+            Tracevv((stderr, here->val >= 0x20 && here->val < 0x7f ?
+                    "inflate:         literal '%c'\n" :
+                    "inflate:         literal 0x%02x\n", here->val));
+            *out++ = (unsigned char)(here->val);
+        }
+        else if (op & 16) {                     /* length base */
+            len = (unsigned)(here->val);
+            op &= 15;                           /* number of extra bits */
+            if (op) {
+                if (bits < op) {
+                    hold += (unsigned long)(*in++) << bits;
+                    bits += 8;
+                }
+                len += (unsigned)hold & ((1U << op) - 1);
+                hold >>= op;
+                bits -= op;
+            }
+            Tracevv((stderr, "inflate:         length %u\n", len));
+            if (bits < 15) {
+                hold += (unsigned long)(*in++) << bits;
+                bits += 8;
+                hold += (unsigned long)(*in++) << bits;
+                bits += 8;
+            }
+            here = dcode + (hold & dmask);
+          dodist:
+            op = (unsigned)(here->bits);
+            hold >>= op;
+            bits -= op;
+            op = (unsigned)(here->op);
+            if (op & 16) {                      /* distance base */
+                dist = (unsigned)(here->val);
+                op &= 15;                       /* number of extra bits */
+                if (bits < op) {
+                    hold += (unsigned long)(*in++) << bits;
+                    bits += 8;
+                    if (bits < op) {
+                        hold += (unsigned long)(*in++) << bits;
+                        bits += 8;
+                    }
+                }
+                dist += (unsigned)hold & ((1U << op) - 1);
+#ifdef INFLATE_STRICT
+                if (dist > dmax) {
+                    strm->msg = (char *)"invalid distance too far back";
+                    state->mode = BAD;
+                    break;
+                }
+#endif
+                hold >>= op;
+                bits -= op;
+                Tracevv((stderr, "inflate:         distance %u\n", dist));
+                op = (unsigned)(out - beg);     /* max distance in output */
+                if (dist > op) {                /* see if copy from window */
+                    op = dist - op;             /* distance back in window */
+                    if (op > whave) {
+                        if (state->sane) {
+                            strm->msg =
+                                (char *)"invalid distance too far back";
+                            state->mode = BAD;
+                            break;
+                        }
+#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
+                        if (len <= op - whave) {
+                            do {
+                                *out++ = 0;
+                            } while (--len);
+                            continue;
+                        }
+                        len -= op - whave;
+                        do {
+                            *out++ = 0;
+                        } while (--op > whave);
+                        if (op == 0) {
+                            from = out - dist;
+                            do {
+                                *out++ = *from++;
+                            } while (--len);
+                            continue;
+                        }
+#endif
+                    }
+                    from = window;
+                    if (wnext == 0) {           /* very common case */
+                        from += wsize - op;
+                        if (op < len) {         /* some from window */
+                            len -= op;
+                            do {
+                                *out++ = *from++;
+                            } while (--op);
+                            from = out - dist;  /* rest from output */
+                        }
+                    }
+                    else if (wnext < op) {      /* wrap around window */
+                        from += wsize + wnext - op;
+                        op -= wnext;
+                        if (op < len) {         /* some from end of window */
+                            len -= op;
+                            do {
+                                *out++ = *from++;
+                            } while (--op);
+                            from = window;
+                            if (wnext < len) {  /* some from start of window */
+                                op = wnext;
+                                len -= op;
+                                do {
+                                    *out++ = *from++;
+                                } while (--op);
+                                from = out - dist;      /* rest from output */
+                            }
+                        }
+                    }
+                    else {                      /* contiguous in window */
+                        from += wnext - op;
+                        if (op < len) {         /* some from window */
+                            len -= op;
+                            do {
+                                *out++ = *from++;
+                            } while (--op);
+                            from = out - dist;  /* rest from output */
+                        }
+                    }
+                    while (len > 2) {
+                        *out++ = *from++;
+                        *out++ = *from++;
+                        *out++ = *from++;
+                        len -= 3;
+                    }
+                    if (len) {
+                        *out++ = *from++;
+                        if (len > 1)
+                            *out++ = *from++;
+                    }
+                }
+                else {
+                    from = out - dist;          /* copy direct from output */
+                    do {                        /* minimum length is three */
+                        *out++ = *from++;
+                        *out++ = *from++;
+                        *out++ = *from++;
+                        len -= 3;
+                    } while (len > 2);
+                    if (len) {
+                        *out++ = *from++;
+                        if (len > 1)
+                            *out++ = *from++;
+                    }
+                }
+            }
+            else if ((op & 64) == 0) {          /* 2nd level distance code */
+                here = dcode + here->val + (hold & ((1U << op) - 1));
+                goto dodist;
+            }
+            else {
+                strm->msg = (char *)"invalid distance code";
+                state->mode = BAD;
+                break;
+            }
+        }
+        else if ((op & 64) == 0) {              /* 2nd level length code */
+            here = lcode + here->val + (hold & ((1U << op) - 1));
+            goto dolen;
+        }
+        else if (op & 32) {                     /* end-of-block */
+            Tracevv((stderr, "inflate:         end of block\n"));
+            state->mode = TYPE;
+            break;
+        }
+        else {
+            strm->msg = (char *)"invalid literal/length code";
+            state->mode = BAD;
+            break;
+        }
+    } while (in < last && out < end);
+
+    /* return unused bytes (on entry, bits < 8, so in won't go too far back) */
+    len = bits >> 3;
+    in -= len;
+    bits -= len << 3;
+    hold &= (1U << bits) - 1;
+
+    /* update state and return */
+    strm->next_in = in;
+    strm->next_out = out;
+    strm->avail_in = (unsigned)(in < last ? 5 + (last - in) : 5 - (in - last));
+    strm->avail_out = (unsigned)(out < end ?
+                                 257 + (end - out) : 257 - (out - end));
+    state->hold = hold;
+    state->bits = bits;
+    return;
+}
+
+/*
+   inflate_fast() speedups that turned out slower (on a PowerPC G3 750CXe):
+   - Using bit fields for code structure
+   - Different op definition to avoid & for extra bits (do & for table bits)
+   - Three separate decoding do-loops for direct, window, and wnext == 0
+   - Special case for distance > 1 copies to do overlapped load and store copy
+   - Explicit branch predictions (based on measured branch probabilities)
+   - Deferring match copy and interspersed it with decoding subsequent codes
+   - Swapping literal/length else
+   - Swapping window/direct else
+   - Larger unrolled copy loops (three is about right)
+   - Moving len -= 3 statement into middle of loop
+ */
+
+#endif /* !ASMINF */
diff --git a/compat/zlib/inffast.h b/compat/zlib/inffast.h
new file mode 100644
index 0000000..49c6d15
--- /dev/null
+++ b/compat/zlib/inffast.h
@@ -0,0 +1,11 @@
+/* inffast.h -- header to use inffast.c
+ * Copyright (C) 1995-2003, 2010 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+   part of the implementation of the compression library and is
+   subject to change. Applications should only use zlib.h.
+ */
+
+void ZLIB_INTERNAL inflate_fast(z_streamp strm, unsigned start);
diff --git a/compat/zlib/inffixed.h b/compat/zlib/inffixed.h
new file mode 100644
index 0000000..d628327
--- /dev/null
+++ b/compat/zlib/inffixed.h
@@ -0,0 +1,94 @@
+    /* inffixed.h -- table for decoding fixed codes
+     * Generated automatically by makefixed().
+     */
+
+    /* WARNING: this file should *not* be used by applications.
+       It is part of the implementation of this library and is
+       subject to change. Applications should only use zlib.h.
+     */
+
+    static const code lenfix[512] = {
+        {96,7,0},{0,8,80},{0,8,16},{20,8,115},{18,7,31},{0,8,112},{0,8,48},
+        {0,9,192},{16,7,10},{0,8,96},{0,8,32},{0,9,160},{0,8,0},{0,8,128},
+        {0,8,64},{0,9,224},{16,7,6},{0,8,88},{0,8,24},{0,9,144},{19,7,59},
+        {0,8,120},{0,8,56},{0,9,208},{17,7,17},{0,8,104},{0,8,40},{0,9,176},
+        {0,8,8},{0,8,136},{0,8,72},{0,9,240},{16,7,4},{0,8,84},{0,8,20},
+        {21,8,227},{19,7,43},{0,8,116},{0,8,52},{0,9,200},{17,7,13},{0,8,100},
+        {0,8,36},{0,9,168},{0,8,4},{0,8,132},{0,8,68},{0,9,232},{16,7,8},
+        {0,8,92},{0,8,28},{0,9,152},{20,7,83},{0,8,124},{0,8,60},{0,9,216},
+        {18,7,23},{0,8,108},{0,8,44},{0,9,184},{0,8,12},{0,8,140},{0,8,76},
+        {0,9,248},{16,7,3},{0,8,82},{0,8,18},{21,8,163},{19,7,35},{0,8,114},
+        {0,8,50},{0,9,196},{17,7,11},{0,8,98},{0,8,34},{0,9,164},{0,8,2},
+        {0,8,130},{0,8,66},{0,9,228},{16,7,7},{0,8,90},{0,8,26},{0,9,148},
+        {20,7,67},{0,8,122},{0,8,58},{0,9,212},{18,7,19},{0,8,106},{0,8,42},
+        {0,9,180},{0,8,10},{0,8,138},{0,8,74},{0,9,244},{16,7,5},{0,8,86},
+        {0,8,22},{64,8,0},{19,7,51},{0,8,118},{0,8,54},{0,9,204},{17,7,15},
+        {0,8,102},{0,8,38},{0,9,172},{0,8,6},{0,8,134},{0,8,70},{0,9,236},
+        {16,7,9},{0,8,94},{0,8,30},{0,9,156},{20,7,99},{0,8,126},{0,8,62},
+        {0,9,220},{18,7,27},{0,8,110},{0,8,46},{0,9,188},{0,8,14},{0,8,142},
+        {0,8,78},{0,9,252},{96,7,0},{0,8,81},{0,8,17},{21,8,131},{18,7,31},
+        {0,8,113},{0,8,49},{0,9,194},{16,7,10},{0,8,97},{0,8,33},{0,9,162},
+        {0,8,1},{0,8,129},{0,8,65},{0,9,226},{16,7,6},{0,8,89},{0,8,25},
+        {0,9,146},{19,7,59},{0,8,121},{0,8,57},{0,9,210},{17,7,17},{0,8,105},
+        {0,8,41},{0,9,178},{0,8,9},{0,8,137},{0,8,73},{0,9,242},{16,7,4},
+        {0,8,85},{0,8,21},{16,8,258},{19,7,43},{0,8,117},{0,8,53},{0,9,202},
+        {17,7,13},{0,8,101},{0,8,37},{0,9,170},{0,8,5},{0,8,133},{0,8,69},
+        {0,9,234},{16,7,8},{0,8,93},{0,8,29},{0,9,154},{20,7,83},{0,8,125},
+        {0,8,61},{0,9,218},{18,7,23},{0,8,109},{0,8,45},{0,9,186},{0,8,13},
+        {0,8,141},{0,8,77},{0,9,250},{16,7,3},{0,8,83},{0,8,19},{21,8,195},
+        {19,7,35},{0,8,115},{0,8,51},{0,9,198},{17,7,11},{0,8,99},{0,8,35},
+        {0,9,166},{0,8,3},{0,8,131},{0,8,67},{0,9,230},{16,7,7},{0,8,91},
+        {0,8,27},{0,9,150},{20,7,67},{0,8,123},{0,8,59},{0,9,214},{18,7,19},
+        {0,8,107},{0,8,43},{0,9,182},{0,8,11},{0,8,139},{0,8,75},{0,9,246},
+        {16,7,5},{0,8,87},{0,8,23},{64,8,0},{19,7,51},{0,8,119},{0,8,55},
+        {0,9,206},{17,7,15},{0,8,103},{0,8,39},{0,9,174},{0,8,7},{0,8,135},
+        {0,8,71},{0,9,238},{16,7,9},{0,8,95},{0,8,31},{0,9,158},{20,7,99},
+        {0,8,127},{0,8,63},{0,9,222},{18,7,27},{0,8,111},{0,8,47},{0,9,190},
+        {0,8,15},{0,8,143},{0,8,79},{0,9,254},{96,7,0},{0,8,80},{0,8,16},
+        {20,8,115},{18,7,31},{0,8,112},{0,8,48},{0,9,193},{16,7,10},{0,8,96},
+        {0,8,32},{0,9,161},{0,8,0},{0,8,128},{0,8,64},{0,9,225},{16,7,6},
+        {0,8,88},{0,8,24},{0,9,145},{19,7,59},{0,8,120},{0,8,56},{0,9,209},
+        {17,7,17},{0,8,104},{0,8,40},{0,9,177},{0,8,8},{0,8,136},{0,8,72},
+        {0,9,241},{16,7,4},{0,8,84},{0,8,20},{21,8,227},{19,7,43},{0,8,116},
+        {0,8,52},{0,9,201},{17,7,13},{0,8,100},{0,8,36},{0,9,169},{0,8,4},
+        {0,8,132},{0,8,68},{0,9,233},{16,7,8},{0,8,92},{0,8,28},{0,9,153},
+        {20,7,83},{0,8,124},{0,8,60},{0,9,217},{18,7,23},{0,8,108},{0,8,44},
+        {0,9,185},{0,8,12},{0,8,140},{0,8,76},{0,9,249},{16,7,3},{0,8,82},
+        {0,8,18},{21,8,163},{19,7,35},{0,8,114},{0,8,50},{0,9,197},{17,7,11},
+        {0,8,98},{0,8,34},{0,9,165},{0,8,2},{0,8,130},{0,8,66},{0,9,229},
+        {16,7,7},{0,8,90},{0,8,26},{0,9,149},{20,7,67},{0,8,122},{0,8,58},
+        {0,9,213},{18,7,19},{0,8,106},{0,8,42},{0,9,181},{0,8,10},{0,8,138},
+        {0,8,74},{0,9,245},{16,7,5},{0,8,86},{0,8,22},{64,8,0},{19,7,51},
+        {0,8,118},{0,8,54},{0,9,205},{17,7,15},{0,8,102},{0,8,38},{0,9,173},
+        {0,8,6},{0,8,134},{0,8,70},{0,9,237},{16,7,9},{0,8,94},{0,8,30},
+        {0,9,157},{20,7,99},{0,8,126},{0,8,62},{0,9,221},{18,7,27},{0,8,110},
+        {0,8,46},{0,9,189},{0,8,14},{0,8,142},{0,8,78},{0,9,253},{96,7,0},
+        {0,8,81},{0,8,17},{21,8,131},{18,7,31},{0,8,113},{0,8,49},{0,9,195},
+        {16,7,10},{0,8,97},{0,8,33},{0,9,163},{0,8,1},{0,8,129},{0,8,65},
+        {0,9,227},{16,7,6},{0,8,89},{0,8,25},{0,9,147},{19,7,59},{0,8,121},
+        {0,8,57},{0,9,211},{17,7,17},{0,8,105},{0,8,41},{0,9,179},{0,8,9},
+        {0,8,137},{0,8,73},{0,9,243},{16,7,4},{0,8,85},{0,8,21},{16,8,258},
+        {19,7,43},{0,8,117},{0,8,53},{0,9,203},{17,7,13},{0,8,101},{0,8,37},
+        {0,9,171},{0,8,5},{0,8,133},{0,8,69},{0,9,235},{16,7,8},{0,8,93},
+        {0,8,29},{0,9,155},{20,7,83},{0,8,125},{0,8,61},{0,9,219},{18,7,23},
+        {0,8,109},{0,8,45},{0,9,187},{0,8,13},{0,8,141},{0,8,77},{0,9,251},
+        {16,7,3},{0,8,83},{0,8,19},{21,8,195},{19,7,35},{0,8,115},{0,8,51},
+        {0,9,199},{17,7,11},{0,8,99},{0,8,35},{0,9,167},{0,8,3},{0,8,131},
+        {0,8,67},{0,9,231},{16,7,7},{0,8,91},{0,8,27},{0,9,151},{20,7,67},
+        {0,8,123},{0,8,59},{0,9,215},{18,7,19},{0,8,107},{0,8,43},{0,9,183},
+        {0,8,11},{0,8,139},{0,8,75},{0,9,247},{16,7,5},{0,8,87},{0,8,23},
+        {64,8,0},{19,7,51},{0,8,119},{0,8,55},{0,9,207},{17,7,15},{0,8,103},
+        {0,8,39},{0,9,175},{0,8,7},{0,8,135},{0,8,71},{0,9,239},{16,7,9},
+        {0,8,95},{0,8,31},{0,9,159},{20,7,99},{0,8,127},{0,8,63},{0,9,223},
+        {18,7,27},{0,8,111},{0,8,47},{0,9,191},{0,8,15},{0,8,143},{0,8,79},
+        {0,9,255}
+    };
+
+    static const code distfix[32] = {
+        {16,5,1},{23,5,257},{19,5,17},{27,5,4097},{17,5,5},{25,5,1025},
+        {21,5,65},{29,5,16385},{16,5,3},{24,5,513},{20,5,33},{28,5,8193},
+        {18,5,9},{26,5,2049},{22,5,129},{64,5,0},{16,5,2},{23,5,385},
+        {19,5,25},{27,5,6145},{17,5,7},{25,5,1537},{21,5,97},{29,5,24577},
+        {16,5,4},{24,5,769},{20,5,49},{28,5,12289},{18,5,13},{26,5,3073},
+        {22,5,193},{64,5,0}
+    };
diff --git a/compat/zlib/inflate.c b/compat/zlib/inflate.c
new file mode 100644
index 0000000..94ecff0
--- /dev/null
+++ b/compat/zlib/inflate.c
@@ -0,0 +1,1526 @@
+/* inflate.c -- zlib decompression
+ * Copyright (C) 1995-2022 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/*
+ * Change history:
+ *
+ * 1.2.beta0    24 Nov 2002
+ * - First version -- complete rewrite of inflate to simplify code, avoid
+ *   creation of window when not needed, minimize use of window when it is
+ *   needed, make inffast.c even faster, implement gzip decoding, and to
+ *   improve code readability and style over the previous zlib inflate code
+ *
+ * 1.2.beta1    25 Nov 2002
+ * - Use pointers for available input and output checking in inffast.c
+ * - Remove input and output counters in inffast.c
+ * - Change inffast.c entry and loop from avail_in >= 7 to >= 6
+ * - Remove unnecessary second byte pull from length extra in inffast.c
+ * - Unroll direct copy to three copies per loop in inffast.c
+ *
+ * 1.2.beta2    4 Dec 2002
+ * - Change external routine names to reduce potential conflicts
+ * - Correct filename to inffixed.h for fixed tables in inflate.c
+ * - Make hbuf[] unsigned char to match parameter type in inflate.c
+ * - Change strm->next_out[-state->offset] to *(strm->next_out - state->offset)
+ *   to avoid negation problem on Alphas (64 bit) in inflate.c
+ *
+ * 1.2.beta3    22 Dec 2002
+ * - Add comments on state->bits assertion in inffast.c
+ * - Add comments on op field in inftrees.h
+ * - Fix bug in reuse of allocated window after inflateReset()
+ * - Remove bit fields--back to byte structure for speed
+ * - Remove distance extra == 0 check in inflate_fast()--only helps for lengths
+ * - Change post-increments to pre-increments in inflate_fast(), PPC biased?
+ * - Add compile time option, POSTINC, to use post-increments instead (Intel?)
+ * - Make MATCH copy in inflate() much faster for when inflate_fast() not used
+ * - Use local copies of stream next and avail values, as well as local bit
+ *   buffer and bit count in inflate()--for speed when inflate_fast() not used
+ *
+ * 1.2.beta4    1 Jan 2003
+ * - Split ptr - 257 statements in inflate_table() to avoid compiler warnings
+ * - Move a comment on output buffer sizes from inffast.c to inflate.c
+ * - Add comments in inffast.c to introduce the inflate_fast() routine
+ * - Rearrange window copies in inflate_fast() for speed and simplification
+ * - Unroll last copy for window match in inflate_fast()
+ * - Use local copies of window variables in inflate_fast() for speed
+ * - Pull out common wnext == 0 case for speed in inflate_fast()
+ * - Make op and len in inflate_fast() unsigned for consistency
+ * - Add FAR to lcode and dcode declarations in inflate_fast()
+ * - Simplified bad distance check in inflate_fast()
+ * - Added inflateBackInit(), inflateBack(), and inflateBackEnd() in new
+ *   source file infback.c to provide a call-back interface to inflate for
+ *   programs like gzip and unzip -- uses window as output buffer to avoid
+ *   window copying
+ *
+ * 1.2.beta5    1 Jan 2003
+ * - Improved inflateBack() interface to allow the caller to provide initial
+ *   input in strm.
+ * - Fixed stored blocks bug in inflateBack()
+ *
+ * 1.2.beta6    4 Jan 2003
+ * - Added comments in inffast.c on effectiveness of POSTINC
+ * - Typecasting all around to reduce compiler warnings
+ * - Changed loops from while (1) or do {} while (1) to for (;;), again to
+ *   make compilers happy
+ * - Changed type of window in inflateBackInit() to unsigned char *
+ *
+ * 1.2.beta7    27 Jan 2003
+ * - Changed many types to unsigned or unsigned short to avoid warnings
+ * - Added inflateCopy() function
+ *
+ * 1.2.0        9 Mar 2003
+ * - Changed inflateBack() interface to provide separate opaque descriptors
+ *   for the in() and out() functions
+ * - Changed inflateBack() argument and in_func typedef to swap the length
+ *   and buffer address return values for the input function
+ * - Check next_in and next_out for Z_NULL on entry to inflate()
+ *
+ * The history for versions after 1.2.0 are in ChangeLog in zlib distribution.
+ */
+
+#include "zutil.h"
+#include "inftrees.h"
+#include "inflate.h"
+#include "inffast.h"
+
+#ifdef MAKEFIXED
+#  ifndef BUILDFIXED
+#    define BUILDFIXED
+#  endif
+#endif
+
+local int inflateStateCheck(z_streamp strm) {
+    struct inflate_state FAR *state;
+    if (strm == Z_NULL ||
+        strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0)
+        return 1;
+    state = (struct inflate_state FAR *)strm->state;
+    if (state == Z_NULL || state->strm != strm ||
+        state->mode < HEAD || state->mode > SYNC)
+        return 1;
+    return 0;
+}
+
+int ZEXPORT inflateResetKeep(z_streamp strm) {
+    struct inflate_state FAR *state;
+
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+    strm->total_in = strm->total_out = state->total = 0;
+    strm->msg = Z_NULL;
+    if (state->wrap)        /* to support ill-conceived Java test suite */
+        strm->adler = state->wrap & 1;
+    state->mode = HEAD;
+    state->last = 0;
+    state->havedict = 0;
+    state->flags = -1;
+    state->dmax = 32768U;
+    state->head = Z_NULL;
+    state->hold = 0;
+    state->bits = 0;
+    state->lencode = state->distcode = state->next = state->codes;
+    state->sane = 1;
+    state->back = -1;
+    Tracev((stderr, "inflate: reset\n"));
+    return Z_OK;
+}
+
+int ZEXPORT inflateReset(z_streamp strm) {
+    struct inflate_state FAR *state;
+
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+    state->wsize = 0;
+    state->whave = 0;
+    state->wnext = 0;
+    return inflateResetKeep(strm);
+}
+
+int ZEXPORT inflateReset2(z_streamp strm, int windowBits) {
+    int wrap;
+    struct inflate_state FAR *state;
+
+    /* get the state */
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+
+    /* extract wrap request from windowBits parameter */
+    if (windowBits < 0) {
+        if (windowBits < -15)
+            return Z_STREAM_ERROR;
+        wrap = 0;
+        windowBits = -windowBits;
+    }
+    else {
+        wrap = (windowBits >> 4) + 5;
+#ifdef GUNZIP
+        if (windowBits < 48)
+            windowBits &= 15;
+#endif
+    }
+
+    /* set number of window bits, free window if different */
+    if (windowBits && (windowBits < 8 || windowBits > 15))
+        return Z_STREAM_ERROR;
+    if (state->window != Z_NULL && state->wbits != (unsigned)windowBits) {
+        ZFREE(strm, state->window);
+        state->window = Z_NULL;
+    }
+
+    /* update state and reset the rest of it */
+    state->wrap = wrap;
+    state->wbits = (unsigned)windowBits;
+    return inflateReset(strm);
+}
+
+int ZEXPORT inflateInit2_(z_streamp strm, int windowBits,
+                          const char *version, int stream_size) {
+    int ret;
+    struct inflate_state FAR *state;
+
+    if (version == Z_NULL || version[0] != ZLIB_VERSION[0] ||
+        stream_size != (int)(sizeof(z_stream)))
+        return Z_VERSION_ERROR;
+    if (strm == Z_NULL) return Z_STREAM_ERROR;
+    strm->msg = Z_NULL;                 /* in case we return an error */
+    if (strm->zalloc == (alloc_func)0) {
+#ifdef Z_SOLO
+        return Z_STREAM_ERROR;
+#else
+        strm->zalloc = zcalloc;
+        strm->opaque = (voidpf)0;
+#endif
+    }
+    if (strm->zfree == (free_func)0)
+#ifdef Z_SOLO
+        return Z_STREAM_ERROR;
+#else
+        strm->zfree = zcfree;
+#endif
+    state = (struct inflate_state FAR *)
+            ZALLOC(strm, 1, sizeof(struct inflate_state));
+    if (state == Z_NULL) return Z_MEM_ERROR;
+    Tracev((stderr, "inflate: allocated\n"));
+    strm->state = (struct internal_state FAR *)state;
+    state->strm = strm;
+    state->window = Z_NULL;
+    state->mode = HEAD;     /* to pass state test in inflateReset2() */
+    ret = inflateReset2(strm, windowBits);
+    if (ret != Z_OK) {
+        ZFREE(strm, state);
+        strm->state = Z_NULL;
+    }
+    return ret;
+}
+
+int ZEXPORT inflateInit_(z_streamp strm, const char *version,
+                         int stream_size) {
+    return inflateInit2_(strm, DEF_WBITS, version, stream_size);
+}
+
+int ZEXPORT inflatePrime(z_streamp strm, int bits, int value) {
+    struct inflate_state FAR *state;
+
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    if (bits == 0)
+        return Z_OK;
+    state = (struct inflate_state FAR *)strm->state;
+    if (bits < 0) {
+        state->hold = 0;
+        state->bits = 0;
+        return Z_OK;
+    }
+    if (bits > 16 || state->bits + (uInt)bits > 32) return Z_STREAM_ERROR;
+    value &= (1L << bits) - 1;
+    state->hold += (unsigned)value << state->bits;
+    state->bits += (uInt)bits;
+    return Z_OK;
+}
+
+/*
+   Return state with length and distance decoding tables and index sizes set to
+   fixed code decoding.  Normally this returns fixed tables from inffixed.h.
+   If BUILDFIXED is defined, then instead this routine builds the tables the
+   first time it's called, and returns those tables the first time and
+   thereafter.  This reduces the size of the code by about 2K bytes, in
+   exchange for a little execution time.  However, BUILDFIXED should not be
+   used for threaded applications, since the rewriting of the tables and virgin
+   may not be thread-safe.
+ */
+local void fixedtables(struct inflate_state FAR *state) {
+#ifdef BUILDFIXED
+    static int virgin = 1;
+    static code *lenfix, *distfix;
+    static code fixed[544];
+
+    /* build fixed huffman tables if first call (may not be thread safe) */
+    if (virgin) {
+        unsigned sym, bits;
+        static code *next;
+
+        /* literal/length table */
+        sym = 0;
+        while (sym < 144) state->lens[sym++] = 8;
+        while (sym < 256) state->lens[sym++] = 9;
+        while (sym < 280) state->lens[sym++] = 7;
+        while (sym < 288) state->lens[sym++] = 8;
+        next = fixed;
+        lenfix = next;
+        bits = 9;
+        inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work);
+
+        /* distance table */
+        sym = 0;
+        while (sym < 32) state->lens[sym++] = 5;
+        distfix = next;
+        bits = 5;
+        inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work);
+
+        /* do this just once */
+        virgin = 0;
+    }
+#else /* !BUILDFIXED */
+#   include "inffixed.h"
+#endif /* BUILDFIXED */
+    state->lencode = lenfix;
+    state->lenbits = 9;
+    state->distcode = distfix;
+    state->distbits = 5;
+}
+
+#ifdef MAKEFIXED
+#include <stdio.h>
+
+/*
+   Write out the inffixed.h that is #include'd above.  Defining MAKEFIXED also
+   defines BUILDFIXED, so the tables are built on the fly.  makefixed() writes
+   those tables to stdout, which would be piped to inffixed.h.  A small program
+   can simply call makefixed to do this:
+
+    void makefixed(void);
+
+    int main(void)
+    {
+        makefixed();
+        return 0;
+    }
+
+   Then that can be linked with zlib built with MAKEFIXED defined and run:
+
+    a.out > inffixed.h
+ */
+void makefixed(void)
+{
+    unsigned low, size;
+    struct inflate_state state;
+
+    fixedtables(&state);
+    puts("    /* inffixed.h -- table for decoding fixed codes");
+    puts("     * Generated automatically by makefixed().");
+    puts("     */");
+    puts("");
+    puts("    /* WARNING: this file should *not* be used by applications.");
+    puts("       It is part of the implementation of this library and is");
+    puts("       subject to change. Applications should only use zlib.h.");
+    puts("     */");
+    puts("");
+    size = 1U << 9;
+    printf("    static const code lenfix[%u] = {", size);
+    low = 0;
+    for (;;) {
+        if ((low % 7) == 0) printf("\n        ");
+        printf("{%u,%u,%d}", (low & 127) == 99 ? 64 : state.lencode[low].op,
+               state.lencode[low].bits, state.lencode[low].val);
+        if (++low == size) break;
+        putchar(',');
+    }
+    puts("\n    };");
+    size = 1U << 5;
+    printf("\n    static const code distfix[%u] = {", size);
+    low = 0;
+    for (;;) {
+        if ((low % 6) == 0) printf("\n        ");
+        printf("{%u,%u,%d}", state.distcode[low].op, state.distcode[low].bits,
+               state.distcode[low].val);
+        if (++low == size) break;
+        putchar(',');
+    }
+    puts("\n    };");
+}
+#endif /* MAKEFIXED */
+
+/*
+   Update the window with the last wsize (normally 32K) bytes written before
+   returning.  If window does not exist yet, create it.  This is only called
+   when a window is already in use, or when output has been written during this
+   inflate call, but the end of the deflate stream has not been reached yet.
+   It is also called to create a window for dictionary data when a dictionary
+   is loaded.
+
+   Providing output buffers larger than 32K to inflate() should provide a speed
+   advantage, since only the last 32K of output is copied to the sliding window
+   upon return from inflate(), and since all distances after the first 32K of
+   output will fall in the output data, making match copies simpler and faster.
+   The advantage may be dependent on the size of the processor's data caches.
+ */
+local int updatewindow(z_streamp strm, const Bytef *end, unsigned copy) {
+    struct inflate_state FAR *state;
+    unsigned dist;
+
+    state = (struct inflate_state FAR *)strm->state;
+
+    /* if it hasn't been done already, allocate space for the window */
+    if (state->window == Z_NULL) {
+        state->window = (unsigned char FAR *)
+                        ZALLOC(strm, 1U << state->wbits,
+                               sizeof(unsigned char));
+        if (state->window == Z_NULL) return 1;
+    }
+
+    /* if window not in use yet, initialize */
+    if (state->wsize == 0) {
+        state->wsize = 1U << state->wbits;
+        state->wnext = 0;
+        state->whave = 0;
+    }
+
+    /* copy state->wsize or less output bytes into the circular window */
+    if (copy >= state->wsize) {
+        zmemcpy(state->window, end - state->wsize, state->wsize);
+        state->wnext = 0;
+        state->whave = state->wsize;
+    }
+    else {
+        dist = state->wsize - state->wnext;
+        if (dist > copy) dist = copy;
+        zmemcpy(state->window + state->wnext, end - copy, dist);
+        copy -= dist;
+        if (copy) {
+            zmemcpy(state->window, end - copy, copy);
+            state->wnext = copy;
+            state->whave = state->wsize;
+        }
+        else {
+            state->wnext += dist;
+            if (state->wnext == state->wsize) state->wnext = 0;
+            if (state->whave < state->wsize) state->whave += dist;
+        }
+    }
+    return 0;
+}
+
+/* Macros for inflate(): */
+
+/* check function to use adler32() for zlib or crc32() for gzip */
+#ifdef GUNZIP
+#  define UPDATE_CHECK(check, buf, len) \
+    (state->flags ? crc32(check, buf, len) : adler32(check, buf, len))
+#else
+#  define UPDATE_CHECK(check, buf, len) adler32(check, buf, len)
+#endif
+
+/* check macros for header crc */
+#ifdef GUNZIP
+#  define CRC2(check, word) \
+    do { \
+        hbuf[0] = (unsigned char)(word); \
+        hbuf[1] = (unsigned char)((word) >> 8); \
+        check = crc32(check, hbuf, 2); \
+    } while (0)
+
+#  define CRC4(check, word) \
+    do { \
+        hbuf[0] = (unsigned char)(word); \
+        hbuf[1] = (unsigned char)((word) >> 8); \
+        hbuf[2] = (unsigned char)((word) >> 16); \
+        hbuf[3] = (unsigned char)((word) >> 24); \
+        check = crc32(check, hbuf, 4); \
+    } while (0)
+#endif
+
+/* Load registers with state in inflate() for speed */
+#define LOAD() \
+    do { \
+        put = strm->next_out; \
+        left = strm->avail_out; \
+        next = strm->next_in; \
+        have = strm->avail_in; \
+        hold = state->hold; \
+        bits = state->bits; \
+    } while (0)
+
+/* Restore state from registers in inflate() */
+#define RESTORE() \
+    do { \
+        strm->next_out = put; \
+        strm->avail_out = left; \
+        strm->next_in = next; \
+        strm->avail_in = have; \
+        state->hold = hold; \
+        state->bits = bits; \
+    } while (0)
+
+/* Clear the input bit accumulator */
+#define INITBITS() \
+    do { \
+        hold = 0; \
+        bits = 0; \
+    } while (0)
+
+/* Get a byte of input into the bit accumulator, or return from inflate()
+   if there is no input available. */
+#define PULLBYTE() \
+    do { \
+        if (have == 0) goto inf_leave; \
+        have--; \
+        hold += (unsigned long)(*next++) << bits; \
+        bits += 8; \
+    } while (0)
+
+/* Assure that there are at least n bits in the bit accumulator.  If there is
+   not enough available input to do that, then return from inflate(). */
+#define NEEDBITS(n) \
+    do { \
+        while (bits < (unsigned)(n)) \
+            PULLBYTE(); \
+    } while (0)
+
+/* Return the low n bits of the bit accumulator (n < 16) */
+#define BITS(n) \
+    ((unsigned)hold & ((1U << (n)) - 1))
+
+/* Remove n bits from the bit accumulator */
+#define DROPBITS(n) \
+    do { \
+        hold >>= (n); \
+        bits -= (unsigned)(n); \
+    } while (0)
+
+/* Remove zero to seven bits as needed to go to a byte boundary */
+#define BYTEBITS() \
+    do { \
+        hold >>= bits & 7; \
+        bits -= bits & 7; \
+    } while (0)
+
+/*
+   inflate() uses a state machine to process as much input data and generate as
+   much output data as possible before returning.  The state machine is
+   structured roughly as follows:
+
+    for (;;) switch (state) {
+    ...
+    case STATEn:
+        if (not enough input data or output space to make progress)
+            return;
+        ... make progress ...
+        state = STATEm;
+        break;
+    ...
+    }
+
+   so when inflate() is called again, the same case is attempted again, and
+   if the appropriate resources are provided, the machine proceeds to the
+   next state.  The NEEDBITS() macro is usually the way the state evaluates
+   whether it can proceed or should return.  NEEDBITS() does the return if
+   the requested bits are not available.  The typical use of the BITS macros
+   is:
+
+        NEEDBITS(n);
+        ... do something with BITS(n) ...
+        DROPBITS(n);
+
+   where NEEDBITS(n) either returns from inflate() if there isn't enough
+   input left to load n bits into the accumulator, or it continues.  BITS(n)
+   gives the low n bits in the accumulator.  When done, DROPBITS(n) drops
+   the low n bits off the accumulator.  INITBITS() clears the accumulator
+   and sets the number of available bits to zero.  BYTEBITS() discards just
+   enough bits to put the accumulator on a byte boundary.  After BYTEBITS()
+   and a NEEDBITS(8), then BITS(8) would return the next byte in the stream.
+
+   NEEDBITS(n) uses PULLBYTE() to get an available byte of input, or to return
+   if there is no input available.  The decoding of variable length codes uses
+   PULLBYTE() directly in order to pull just enough bytes to decode the next
+   code, and no more.
+
+   Some states loop until they get enough input, making sure that enough
+   state information is maintained to continue the loop where it left off
+   if NEEDBITS() returns in the loop.  For example, want, need, and keep
+   would all have to actually be part of the saved state in case NEEDBITS()
+   returns:
+
+    case STATEw:
+        while (want < need) {
+            NEEDBITS(n);
+            keep[want++] = BITS(n);
+            DROPBITS(n);
+        }
+        state = STATEx;
+    case STATEx:
+
+   As shown above, if the next state is also the next case, then the break
+   is omitted.
+
+   A state may also return if there is not enough output space available to
+   complete that state.  Those states are copying stored data, writing a
+   literal byte, and copying a matching string.
+
+   When returning, a "goto inf_leave" is used to update the total counters,
+   update the check value, and determine whether any progress has been made
+   during that inflate() call in order to return the proper return code.
+   Progress is defined as a change in either strm->avail_in or strm->avail_out.
+   When there is a window, goto inf_leave will update the window with the last
+   output written.  If a goto inf_leave occurs in the middle of decompression
+   and there is no window currently, goto inf_leave will create one and copy
+   output to the window for the next call of inflate().
+
+   In this implementation, the flush parameter of inflate() only affects the
+   return code (per zlib.h).  inflate() always writes as much as possible to
+   strm->next_out, given the space available and the provided input--the effect
+   documented in zlib.h of Z_SYNC_FLUSH.  Furthermore, inflate() always defers
+   the allocation of and copying into a sliding window until necessary, which
+   provides the effect documented in zlib.h for Z_FINISH when the entire input
+   stream available.  So the only thing the flush parameter actually does is:
+   when flush is set to Z_FINISH, inflate() cannot return Z_OK.  Instead it
+   will return Z_BUF_ERROR if it has not reached the end of the stream.
+ */
+
+int ZEXPORT inflate(z_streamp strm, int flush) {
+    struct inflate_state FAR *state;
+    z_const unsigned char FAR *next;    /* next input */
+    unsigned char FAR *put;     /* next output */
+    unsigned have, left;        /* available input and output */
+    unsigned long hold;         /* bit buffer */
+    unsigned bits;              /* bits in bit buffer */
+    unsigned in, out;           /* save starting available input and output */
+    unsigned copy;              /* number of stored or match bytes to copy */
+    unsigned char FAR *from;    /* where to copy match bytes from */
+    code here;                  /* current decoding table entry */
+    code last;                  /* parent table entry */
+    unsigned len;               /* length to copy for repeats, bits to drop */
+    int ret;                    /* return code */
+#ifdef GUNZIP
+    unsigned char hbuf[4];      /* buffer for gzip header crc calculation */
+#endif
+    static const unsigned short order[19] = /* permutation of code lengths */
+        {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
+
+    if (inflateStateCheck(strm) || strm->next_out == Z_NULL ||
+        (strm->next_in == Z_NULL && strm->avail_in != 0))
+        return Z_STREAM_ERROR;
+
+    state = (struct inflate_state FAR *)strm->state;
+    if (state->mode == TYPE) state->mode = TYPEDO;      /* skip check */
+    LOAD();
+    in = have;
+    out = left;
+    ret = Z_OK;
+    for (;;)
+        switch (state->mode) {
+        case HEAD:
+            if (state->wrap == 0) {
+                state->mode = TYPEDO;
+                break;
+            }
+            NEEDBITS(16);
+#ifdef GUNZIP
+            if ((state->wrap & 2) && hold == 0x8b1f) {  /* gzip header */
+                if (state->wbits == 0)
+                    state->wbits = 15;
+                state->check = crc32(0L, Z_NULL, 0);
+                CRC2(state->check, hold);
+                INITBITS();
+                state->mode = FLAGS;
+                break;
+            }
+            if (state->head != Z_NULL)
+                state->head->done = -1;
+            if (!(state->wrap & 1) ||   /* check if zlib header allowed */
+#else
+            if (
+#endif
+                ((BITS(8) << 8) + (hold >> 8)) % 31) {
+                strm->msg = (char *)"incorrect header check";
+                state->mode = BAD;
+                break;
+            }
+            if (BITS(4) != Z_DEFLATED) {
+                strm->msg = (char *)"unknown compression method";
+                state->mode = BAD;
+                break;
+            }
+            DROPBITS(4);
+            len = BITS(4) + 8;
+            if (state->wbits == 0)
+                state->wbits = len;
+            if (len > 15 || len > state->wbits) {
+                strm->msg = (char *)"invalid window size";
+                state->mode = BAD;
+                break;
+            }
+            state->dmax = 1U << len;
+            state->flags = 0;               /* indicate zlib header */
+            Tracev((stderr, "inflate:   zlib header ok\n"));
+            strm->adler = state->check = adler32(0L, Z_NULL, 0);
+            state->mode = hold & 0x200 ? DICTID : TYPE;
+            INITBITS();
+            break;
+#ifdef GUNZIP
+        case FLAGS:
+            NEEDBITS(16);
+            state->flags = (int)(hold);
+            if ((state->flags & 0xff) != Z_DEFLATED) {
+                strm->msg = (char *)"unknown compression method";
+                state->mode = BAD;
+                break;
+            }
+            if (state->flags & 0xe000) {
+                strm->msg = (char *)"unknown header flags set";
+                state->mode = BAD;
+                break;
+            }
+            if (state->head != Z_NULL)
+                state->head->text = (int)((hold >> 8) & 1);
+            if ((state->flags & 0x0200) && (state->wrap & 4))
+                CRC2(state->check, hold);
+            INITBITS();
+            state->mode = TIME;
+                /* fallthrough */
+        case TIME:
+            NEEDBITS(32);
+            if (state->head != Z_NULL)
+                state->head->time = hold;
+            if ((state->flags & 0x0200) && (state->wrap & 4))
+                CRC4(state->check, hold);
+            INITBITS();
+            state->mode = OS;
+                /* fallthrough */
+        case OS:
+            NEEDBITS(16);
+            if (state->head != Z_NULL) {
+                state->head->xflags = (int)(hold & 0xff);
+                state->head->os = (int)(hold >> 8);
+            }
+            if ((state->flags & 0x0200) && (state->wrap & 4))
+                CRC2(state->check, hold);
+            INITBITS();
+            state->mode = EXLEN;
+                /* fallthrough */
+        case EXLEN:
+            if (state->flags & 0x0400) {
+                NEEDBITS(16);
+                state->length = (unsigned)(hold);
+                if (state->head != Z_NULL)
+                    state->head->extra_len = (unsigned)hold;
+                if ((state->flags & 0x0200) && (state->wrap & 4))
+                    CRC2(state->check, hold);
+                INITBITS();
+            }
+            else if (state->head != Z_NULL)
+                state->head->extra = Z_NULL;
+            state->mode = EXTRA;
+                /* fallthrough */
+        case EXTRA:
+            if (state->flags & 0x0400) {
+                copy = state->length;
+                if (copy > have) copy = have;
+                if (copy) {
+                    if (state->head != Z_NULL &&
+                        state->head->extra != Z_NULL &&
+                        (len = state->head->extra_len - state->length) <
+                            state->head->extra_max) {
+                        zmemcpy(state->head->extra + len, next,
+                                len + copy > state->head->extra_max ?
+                                state->head->extra_max - len : copy);
+                    }
+                    if ((state->flags & 0x0200) && (state->wrap & 4))
+                        state->check = crc32(state->check, next, copy);
+                    have -= copy;
+                    next += copy;
+                    state->length -= copy;
+                }
+                if (state->length) goto inf_leave;
+            }
+            state->length = 0;
+            state->mode = NAME;
+                /* fallthrough */
+        case NAME:
+            if (state->flags & 0x0800) {
+                if (have == 0) goto inf_leave;
+                copy = 0;
+                do {
+                    len = (unsigned)(next[copy++]);
+                    if (state->head != Z_NULL &&
+                            state->head->name != Z_NULL &&
+                            state->length < state->head->name_max)
+                        state->head->name[state->length++] = (Bytef)len;
+                } while (len && copy < have);
+                if ((state->flags & 0x0200) && (state->wrap & 4))
+                    state->check = crc32(state->check, next, copy);
+                have -= copy;
+                next += copy;
+                if (len) goto inf_leave;
+            }
+            else if (state->head != Z_NULL)
+                state->head->name = Z_NULL;
+            state->length = 0;
+            state->mode = COMMENT;
+                /* fallthrough */
+        case COMMENT:
+            if (state->flags & 0x1000) {
+                if (have == 0) goto inf_leave;
+                copy = 0;
+                do {
+                    len = (unsigned)(next[copy++]);
+                    if (state->head != Z_NULL &&
+                            state->head->comment != Z_NULL &&
+                            state->length < state->head->comm_max)
+                        state->head->comment[state->length++] = (Bytef)len;
+                } while (len && copy < have);
+                if ((state->flags & 0x0200) && (state->wrap & 4))
+                    state->check = crc32(state->check, next, copy);
+                have -= copy;
+                next += copy;
+                if (len) goto inf_leave;
+            }
+            else if (state->head != Z_NULL)
+                state->head->comment = Z_NULL;
+            state->mode = HCRC;
+                /* fallthrough */
+        case HCRC:
+            if (state->flags & 0x0200) {
+                NEEDBITS(16);
+                if ((state->wrap & 4) && hold != (state->check & 0xffff)) {
+                    strm->msg = (char *)"header crc mismatch";
+                    state->mode = BAD;
+                    break;
+                }
+                INITBITS();
+            }
+            if (state->head != Z_NULL) {
+                state->head->hcrc = (int)((state->flags >> 9) & 1);
+                state->head->done = 1;
+            }
+            strm->adler = state->check = crc32(0L, Z_NULL, 0);
+            state->mode = TYPE;
+            break;
+#endif
+        case DICTID:
+            NEEDBITS(32);
+            strm->adler = state->check = ZSWAP32(hold);
+            INITBITS();
+            state->mode = DICT;
+                /* fallthrough */
+        case DICT:
+            if (state->havedict == 0) {
+                RESTORE();
+                return Z_NEED_DICT;
+            }
+            strm->adler = state->check = adler32(0L, Z_NULL, 0);
+            state->mode = TYPE;
+                /* fallthrough */
+        case TYPE:
+            if (flush == Z_BLOCK || flush == Z_TREES) goto inf_leave;
+                /* fallthrough */
+        case TYPEDO:
+            if (state->last) {
+                BYTEBITS();
+                state->mode = CHECK;
+                break;
+            }
+            NEEDBITS(3);
+            state->last = BITS(1);
+            DROPBITS(1);
+            switch (BITS(2)) {
+            case 0:                             /* stored block */
+                Tracev((stderr, "inflate:     stored block%s\n",
+                        state->last ? " (last)" : ""));
+                state->mode = STORED;
+                break;
+            case 1:                             /* fixed block */
+                fixedtables(state);
+                Tracev((stderr, "inflate:     fixed codes block%s\n",
+                        state->last ? " (last)" : ""));
+                state->mode = LEN_;             /* decode codes */
+                if (flush == Z_TREES) {
+                    DROPBITS(2);
+                    goto inf_leave;
+                }
+                break;
+            case 2:                             /* dynamic block */
+                Tracev((stderr, "inflate:     dynamic codes block%s\n",
+                        state->last ? " (last)" : ""));
+                state->mode = TABLE;
+                break;
+            case 3:
+                strm->msg = (char *)"invalid block type";
+                state->mode = BAD;
+            }
+            DROPBITS(2);
+            break;
+        case STORED:
+            BYTEBITS();                         /* go to byte boundary */
+            NEEDBITS(32);
+            if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) {
+                strm->msg = (char *)"invalid stored block lengths";
+                state->mode = BAD;
+                break;
+            }
+            state->length = (unsigned)hold & 0xffff;
+            Tracev((stderr, "inflate:       stored length %u\n",
+                    state->length));
+            INITBITS();
+            state->mode = COPY_;
+            if (flush == Z_TREES) goto inf_leave;
+                /* fallthrough */
+        case COPY_:
+            state->mode = COPY;
+                /* fallthrough */
+        case COPY:
+            copy = state->length;
+            if (copy) {
+                if (copy > have) copy = have;
+                if (copy > left) copy = left;
+                if (copy == 0) goto inf_leave;
+                zmemcpy(put, next, copy);
+                have -= copy;
+                next += copy;
+                left -= copy;
+                put += copy;
+                state->length -= copy;
+                break;
+            }
+            Tracev((stderr, "inflate:       stored end\n"));
+            state->mode = TYPE;
+            break;
+        case TABLE:
+            NEEDBITS(14);
+            state->nlen = BITS(5) + 257;
+            DROPBITS(5);
+            state->ndist = BITS(5) + 1;
+            DROPBITS(5);
+            state->ncode = BITS(4) + 4;
+            DROPBITS(4);
+#ifndef PKZIP_BUG_WORKAROUND
+            if (state->nlen > 286 || state->ndist > 30) {
+                strm->msg = (char *)"too many length or distance symbols";
+                state->mode = BAD;
+                break;
+            }
+#endif
+            Tracev((stderr, "inflate:       table sizes ok\n"));
+            state->have = 0;
+            state->mode = LENLENS;
+                /* fallthrough */
+        case LENLENS:
+            while (state->have < state->ncode) {
+                NEEDBITS(3);
+                state->lens[order[state->have++]] = (unsigned short)BITS(3);
+                DROPBITS(3);
+            }
+            while (state->have < 19)
+                state->lens[order[state->have++]] = 0;
+            state->next = state->codes;
+            state->lencode = (const code FAR *)(state->next);
+            state->lenbits = 7;
+            ret = inflate_table(CODES, state->lens, 19, &(state->next),
+                                &(state->lenbits), state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid code lengths set";
+                state->mode = BAD;
+                break;
+            }
+            Tracev((stderr, "inflate:       code lengths ok\n"));
+            state->have = 0;
+            state->mode = CODELENS;
+                /* fallthrough */
+        case CODELENS:
+            while (state->have < state->nlen + state->ndist) {
+                for (;;) {
+                    here = state->lencode[BITS(state->lenbits)];
+                    if ((unsigned)(here.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                if (here.val < 16) {
+                    DROPBITS(here.bits);
+                    state->lens[state->have++] = here.val;
+                }
+                else {
+                    if (here.val == 16) {
+                        NEEDBITS(here.bits + 2);
+                        DROPBITS(here.bits);
+                        if (state->have == 0) {
+                            strm->msg = (char *)"invalid bit length repeat";
+                            state->mode = BAD;
+                            break;
+                        }
+                        len = state->lens[state->have - 1];
+                        copy = 3 + BITS(2);
+                        DROPBITS(2);
+                    }
+                    else if (here.val == 17) {
+                        NEEDBITS(here.bits + 3);
+                        DROPBITS(here.bits);
+                        len = 0;
+                        copy = 3 + BITS(3);
+                        DROPBITS(3);
+                    }
+                    else {
+                        NEEDBITS(here.bits + 7);
+                        DROPBITS(here.bits);
+                        len = 0;
+                        copy = 11 + BITS(7);
+                        DROPBITS(7);
+                    }
+                    if (state->have + copy > state->nlen + state->ndist) {
+                        strm->msg = (char *)"invalid bit length repeat";
+                        state->mode = BAD;
+                        break;
+                    }
+                    while (copy--)
+                        state->lens[state->have++] = (unsigned short)len;
+                }
+            }
+
+            /* handle error breaks in while */
+            if (state->mode == BAD) break;
+
+            /* check for end-of-block code (better have one) */
+            if (state->lens[256] == 0) {
+                strm->msg = (char *)"invalid code -- missing end-of-block";
+                state->mode = BAD;
+                break;
+            }
+
+            /* build code tables -- note: do not change the lenbits or distbits
+               values here (9 and 6) without reading the comments in inftrees.h
+               concerning the ENOUGH constants, which depend on those values */
+            state->next = state->codes;
+            state->lencode = (const code FAR *)(state->next);
+            state->lenbits = 9;
+            ret = inflate_table(LENS, state->lens, state->nlen, &(state->next),
+                                &(state->lenbits), state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid literal/lengths set";
+                state->mode = BAD;
+                break;
+            }
+            state->distcode = (const code FAR *)(state->next);
+            state->distbits = 6;
+            ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist,
+                            &(state->next), &(state->distbits), state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid distances set";
+                state->mode = BAD;
+                break;
+            }
+            Tracev((stderr, "inflate:       codes ok\n"));
+            state->mode = LEN_;
+            if (flush == Z_TREES) goto inf_leave;
+                /* fallthrough */
+        case LEN_:
+            state->mode = LEN;
+                /* fallthrough */
+        case LEN:
+            if (have >= 6 && left >= 258) {
+                RESTORE();
+                inflate_fast(strm, out);
+                LOAD();
+                if (state->mode == TYPE)
+                    state->back = -1;
+                break;
+            }
+            state->back = 0;
+            for (;;) {
+                here = state->lencode[BITS(state->lenbits)];
+                if ((unsigned)(here.bits) <= bits) break;
+                PULLBYTE();
+            }
+            if (here.op && (here.op & 0xf0) == 0) {
+                last = here;
+                for (;;) {
+                    here = state->lencode[last.val +
+                            (BITS(last.bits + last.op) >> last.bits)];
+                    if ((unsigned)(last.bits + here.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                DROPBITS(last.bits);
+                state->back += last.bits;
+            }
+            DROPBITS(here.bits);
+            state->back += here.bits;
+            state->length = (unsigned)here.val;
+            if ((int)(here.op) == 0) {
+                Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
+                        "inflate:         literal '%c'\n" :
+                        "inflate:         literal 0x%02x\n", here.val));
+                state->mode = LIT;
+                break;
+            }
+            if (here.op & 32) {
+                Tracevv((stderr, "inflate:         end of block\n"));
+                state->back = -1;
+                state->mode = TYPE;
+                break;
+            }
+            if (here.op & 64) {
+                strm->msg = (char *)"invalid literal/length code";
+                state->mode = BAD;
+                break;
+            }
+            state->extra = (unsigned)(here.op) & 15;
+            state->mode = LENEXT;
+                /* fallthrough */
+        case LENEXT:
+            if (state->extra) {
+                NEEDBITS(state->extra);
+                state->length += BITS(state->extra);
+                DROPBITS(state->extra);
+                state->back += state->extra;
+            }
+            Tracevv((stderr, "inflate:         length %u\n", state->length));
+            state->was = state->length;
+            state->mode = DIST;
+                /* fallthrough */
+        case DIST:
+            for (;;) {
+                here = state->distcode[BITS(state->distbits)];
+                if ((unsigned)(here.bits) <= bits) break;
+                PULLBYTE();
+            }
+            if ((here.op & 0xf0) == 0) {
+                last = here;
+                for (;;) {
+                    here = state->distcode[last.val +
+                            (BITS(last.bits + last.op) >> last.bits)];
+                    if ((unsigned)(last.bits + here.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                DROPBITS(last.bits);
+                state->back += last.bits;
+            }
+            DROPBITS(here.bits);
+            state->back += here.bits;
+            if (here.op & 64) {
+                strm->msg = (char *)"invalid distance code";
+                state->mode = BAD;
+                break;
+            }
+            state->offset = (unsigned)here.val;
+            state->extra = (unsigned)(here.op) & 15;
+            state->mode = DISTEXT;
+                /* fallthrough */
+        case DISTEXT:
+            if (state->extra) {
+                NEEDBITS(state->extra);
+                state->offset += BITS(state->extra);
+                DROPBITS(state->extra);
+                state->back += state->extra;
+            }
+#ifdef INFLATE_STRICT
+            if (state->offset > state->dmax) {
+                strm->msg = (char *)"invalid distance too far back";
+                state->mode = BAD;
+                break;
+            }
+#endif
+            Tracevv((stderr, "inflate:         distance %u\n", state->offset));
+            state->mode = MATCH;
+                /* fallthrough */
+        case MATCH:
+            if (left == 0) goto inf_leave;
+            copy = out - left;
+            if (state->offset > copy) {         /* copy from window */
+                copy = state->offset - copy;
+                if (copy > state->whave) {
+                    if (state->sane) {
+                        strm->msg = (char *)"invalid distance too far back";
+                        state->mode = BAD;
+                        break;
+                    }
+#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
+                    Trace((stderr, "inflate.c too far\n"));
+                    copy -= state->whave;
+                    if (copy > state->length) copy = state->length;
+                    if (copy > left) copy = left;
+                    left -= copy;
+                    state->length -= copy;
+                    do {
+                        *put++ = 0;
+                    } while (--copy);
+                    if (state->length == 0) state->mode = LEN;
+                    break;
+#endif
+                }
+                if (copy > state->wnext) {
+                    copy -= state->wnext;
+                    from = state->window + (state->wsize - copy);
+                }
+                else
+                    from = state->window + (state->wnext - copy);
+                if (copy > state->length) copy = state->length;
+            }
+            else {                              /* copy from output */
+                from = put - state->offset;
+                copy = state->length;
+            }
+            if (copy > left) copy = left;
+            left -= copy;
+            state->length -= copy;
+            do {
+                *put++ = *from++;
+            } while (--copy);
+            if (state->length == 0) state->mode = LEN;
+            break;
+        case LIT:
+            if (left == 0) goto inf_leave;
+            *put++ = (unsigned char)(state->length);
+            left--;
+            state->mode = LEN;
+            break;
+        case CHECK:
+            if (state->wrap) {
+                NEEDBITS(32);
+                out -= left;
+                strm->total_out += out;
+                state->total += out;
+                if ((state->wrap & 4) && out)
+                    strm->adler = state->check =
+                        UPDATE_CHECK(state->check, put - out, out);
+                out = left;
+                if ((state->wrap & 4) && (
+#ifdef GUNZIP
+                     state->flags ? hold :
+#endif
+                     ZSWAP32(hold)) != state->check) {
+                    strm->msg = (char *)"incorrect data check";
+                    state->mode = BAD;
+                    break;
+                }
+                INITBITS();
+                Tracev((stderr, "inflate:   check matches trailer\n"));
+            }
+#ifdef GUNZIP
+            state->mode = LENGTH;
+                /* fallthrough */
+        case LENGTH:
+            if (state->wrap && state->flags) {
+                NEEDBITS(32);
+                if ((state->wrap & 4) && hold != (state->total & 0xffffffff)) {
+                    strm->msg = (char *)"incorrect length check";
+                    state->mode = BAD;
+                    break;
+                }
+                INITBITS();
+                Tracev((stderr, "inflate:   length matches trailer\n"));
+            }
+#endif
+            state->mode = DONE;
+                /* fallthrough */
+        case DONE:
+            ret = Z_STREAM_END;
+            goto inf_leave;
+        case BAD:
+            ret = Z_DATA_ERROR;
+            goto inf_leave;
+        case MEM:
+            return Z_MEM_ERROR;
+        case SYNC:
+                /* fallthrough */
+        default:
+            return Z_STREAM_ERROR;
+        }
+
+    /*
+       Return from inflate(), updating the total counts and the check value.
+       If there was no progress during the inflate() call, return a buffer
+       error.  Call updatewindow() to create and/or update the window state.
+       Note: a memory error from inflate() is non-recoverable.
+     */
+  inf_leave:
+    RESTORE();
+    if (state->wsize || (out != strm->avail_out && state->mode < BAD &&
+            (state->mode < CHECK || flush != Z_FINISH)))
+        if (updatewindow(strm, strm->next_out, out - strm->avail_out)) {
+            state->mode = MEM;
+            return Z_MEM_ERROR;
+        }
+    in -= strm->avail_in;
+    out -= strm->avail_out;
+    strm->total_in += in;
+    strm->total_out += out;
+    state->total += out;
+    if ((state->wrap & 4) && out)
+        strm->adler = state->check =
+            UPDATE_CHECK(state->check, strm->next_out - out, out);
+    strm->data_type = (int)state->bits + (state->last ? 64 : 0) +
+                      (state->mode == TYPE ? 128 : 0) +
+                      (state->mode == LEN_ || state->mode == COPY_ ? 256 : 0);
+    if (((in == 0 && out == 0) || flush == Z_FINISH) && ret == Z_OK)
+        ret = Z_BUF_ERROR;
+    return ret;
+}
+
+int ZEXPORT inflateEnd(z_streamp strm) {
+    struct inflate_state FAR *state;
+    if (inflateStateCheck(strm))
+        return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+    if (state->window != Z_NULL) ZFREE(strm, state->window);
+    ZFREE(strm, strm->state);
+    strm->state = Z_NULL;
+    Tracev((stderr, "inflate: end\n"));
+    return Z_OK;
+}
+
+int ZEXPORT inflateGetDictionary(z_streamp strm, Bytef *dictionary,
+                                 uInt *dictLength) {
+    struct inflate_state FAR *state;
+
+    /* check state */
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+
+    /* copy dictionary */
+    if (state->whave && dictionary != Z_NULL) {
+        zmemcpy(dictionary, state->window + state->wnext,
+                state->whave - state->wnext);
+        zmemcpy(dictionary + state->whave - state->wnext,
+                state->window, state->wnext);
+    }
+    if (dictLength != Z_NULL)
+        *dictLength = state->whave;
+    return Z_OK;
+}
+
+int ZEXPORT inflateSetDictionary(z_streamp strm, const Bytef *dictionary,
+                                 uInt dictLength) {
+    struct inflate_state FAR *state;
+    unsigned long dictid;
+    int ret;
+
+    /* check state */
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+    if (state->wrap != 0 && state->mode != DICT)
+        return Z_STREAM_ERROR;
+
+    /* check for correct dictionary identifier */
+    if (state->mode == DICT) {
+        dictid = adler32(0L, Z_NULL, 0);
+        dictid = adler32(dictid, dictionary, dictLength);
+        if (dictid != state->check)
+            return Z_DATA_ERROR;
+    }
+
+    /* copy dictionary to window using updatewindow(), which will amend the
+       existing dictionary if appropriate */
+    ret = updatewindow(strm, dictionary + dictLength, dictLength);
+    if (ret) {
+        state->mode = MEM;
+        return Z_MEM_ERROR;
+    }
+    state->havedict = 1;
+    Tracev((stderr, "inflate:   dictionary set\n"));
+    return Z_OK;
+}
+
+int ZEXPORT inflateGetHeader(z_streamp strm, gz_headerp head) {
+    struct inflate_state FAR *state;
+
+    /* check state */
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+    if ((state->wrap & 2) == 0) return Z_STREAM_ERROR;
+
+    /* save header structure */
+    state->head = head;
+    head->done = 0;
+    return Z_OK;
+}
+
+/*
+   Search buf[0..len-1] for the pattern: 0, 0, 0xff, 0xff.  Return when found
+   or when out of input.  When called, *have is the number of pattern bytes
+   found in order so far, in 0..3.  On return *have is updated to the new
+   state.  If on return *have equals four, then the pattern was found and the
+   return value is how many bytes were read including the last byte of the
+   pattern.  If *have is less than four, then the pattern has not been found
+   yet and the return value is len.  In the latter case, syncsearch() can be
+   called again with more data and the *have state.  *have is initialized to
+   zero for the first call.
+ */
+local unsigned syncsearch(unsigned FAR *have, const unsigned char FAR *buf,
+                          unsigned len) {
+    unsigned got;
+    unsigned next;
+
+    got = *have;
+    next = 0;
+    while (next < len && got < 4) {
+        if ((int)(buf[next]) == (got < 2 ? 0 : 0xff))
+            got++;
+        else if (buf[next])
+            got = 0;
+        else
+            got = 4 - got;
+        next++;
+    }
+    *have = got;
+    return next;
+}
+
+int ZEXPORT inflateSync(z_streamp strm) {
+    unsigned len;               /* number of bytes to look at or looked at */
+    int flags;                  /* temporary to save header status */
+    unsigned long in, out;      /* temporary to save total_in and total_out */
+    unsigned char buf[4];       /* to restore bit buffer to byte string */
+    struct inflate_state FAR *state;
+
+    /* check parameters */
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+    if (strm->avail_in == 0 && state->bits < 8) return Z_BUF_ERROR;
+
+    /* if first time, start search in bit buffer */
+    if (state->mode != SYNC) {
+        state->mode = SYNC;
+        state->hold >>= state->bits & 7;
+        state->bits -= state->bits & 7;
+        len = 0;
+        while (state->bits >= 8) {
+            buf[len++] = (unsigned char)(state->hold);
+            state->hold >>= 8;
+            state->bits -= 8;
+        }
+        state->have = 0;
+        syncsearch(&(state->have), buf, len);
+    }
+
+    /* search available input */
+    len = syncsearch(&(state->have), strm->next_in, strm->avail_in);
+    strm->avail_in -= len;
+    strm->next_in += len;
+    strm->total_in += len;
+
+    /* return no joy or set up to restart inflate() on a new block */
+    if (state->have != 4) return Z_DATA_ERROR;
+    if (state->flags == -1)
+        state->wrap = 0;    /* if no header yet, treat as raw */
+    else
+        state->wrap &= ~4;  /* no point in computing a check value now */
+    flags = state->flags;
+    in = strm->total_in;  out = strm->total_out;
+    inflateReset(strm);
+    strm->total_in = in;  strm->total_out = out;
+    state->flags = flags;
+    state->mode = TYPE;
+    return Z_OK;
+}
+
+/*
+   Returns true if inflate is currently at the end of a block generated by
+   Z_SYNC_FLUSH or Z_FULL_FLUSH. This function is used by one PPP
+   implementation to provide an additional safety check. PPP uses
+   Z_SYNC_FLUSH but removes the length bytes of the resulting empty stored
+   block. When decompressing, PPP checks that at the end of input packet,
+   inflate is waiting for these length bytes.
+ */
+int ZEXPORT inflateSyncPoint(z_streamp strm) {
+    struct inflate_state FAR *state;
+
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+    return state->mode == STORED && state->bits == 0;
+}
+
+int ZEXPORT inflateCopy(z_streamp dest, z_streamp source) {
+    struct inflate_state FAR *state;
+    struct inflate_state FAR *copy;
+    unsigned char FAR *window;
+    unsigned wsize;
+
+    /* check input */
+    if (inflateStateCheck(source) || dest == Z_NULL)
+        return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)source->state;
+
+    /* allocate space */
+    copy = (struct inflate_state FAR *)
+           ZALLOC(source, 1, sizeof(struct inflate_state));
+    if (copy == Z_NULL) return Z_MEM_ERROR;
+    window = Z_NULL;
+    if (state->window != Z_NULL) {
+        window = (unsigned char FAR *)
+                 ZALLOC(source, 1U << state->wbits, sizeof(unsigned char));
+        if (window == Z_NULL) {
+            ZFREE(source, copy);
+            return Z_MEM_ERROR;
+        }
+    }
+
+    /* copy state */
+    zmemcpy((voidpf)dest, (voidpf)source, sizeof(z_stream));
+    zmemcpy((voidpf)copy, (voidpf)state, sizeof(struct inflate_state));
+    copy->strm = dest;
+    if (state->lencode >= state->codes &&
+        state->lencode <= state->codes + ENOUGH - 1) {
+        copy->lencode = copy->codes + (state->lencode - state->codes);
+        copy->distcode = copy->codes + (state->distcode - state->codes);
+    }
+    copy->next = copy->codes + (state->next - state->codes);
+    if (window != Z_NULL) {
+        wsize = 1U << state->wbits;
+        zmemcpy(window, state->window, wsize);
+    }
+    copy->window = window;
+    dest->state = (struct internal_state FAR *)copy;
+    return Z_OK;
+}
+
+int ZEXPORT inflateUndermine(z_streamp strm, int subvert) {
+    struct inflate_state FAR *state;
+
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
+    state->sane = !subvert;
+    return Z_OK;
+#else
+    (void)subvert;
+    state->sane = 1;
+    return Z_DATA_ERROR;
+#endif
+}
+
+int ZEXPORT inflateValidate(z_streamp strm, int check) {
+    struct inflate_state FAR *state;
+
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+    if (check && state->wrap)
+        state->wrap |= 4;
+    else
+        state->wrap &= ~4;
+    return Z_OK;
+}
+
+long ZEXPORT inflateMark(z_streamp strm) {
+    struct inflate_state FAR *state;
+
+    if (inflateStateCheck(strm))
+        return -(1L << 16);
+    state = (struct inflate_state FAR *)strm->state;
+    return (long)(((unsigned long)((long)state->back)) << 16) +
+        (state->mode == COPY ? state->length :
+            (state->mode == MATCH ? state->was - state->length : 0));
+}
+
+unsigned long ZEXPORT inflateCodesUsed(z_streamp strm) {
+    struct inflate_state FAR *state;
+    if (inflateStateCheck(strm)) return (unsigned long)-1;
+    state = (struct inflate_state FAR *)strm->state;
+    return (unsigned long)(state->next - state->codes);
+}
diff --git a/compat/zlib/inflate.h b/compat/zlib/inflate.h
new file mode 100644
index 0000000..f127b6b
--- /dev/null
+++ b/compat/zlib/inflate.h
@@ -0,0 +1,126 @@
+/* inflate.h -- internal inflate state definition
+ * Copyright (C) 1995-2019 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+   part of the implementation of the compression library and is
+   subject to change. Applications should only use zlib.h.
+ */
+
+/* define NO_GZIP when compiling if you want to disable gzip header and
+   trailer decoding by inflate().  NO_GZIP would be used to avoid linking in
+   the crc code when it is not needed.  For shared libraries, gzip decoding
+   should be left enabled. */
+#ifndef NO_GZIP
+#  define GUNZIP
+#endif
+
+/* Possible inflate modes between inflate() calls */
+typedef enum {
+    HEAD = 16180,   /* i: waiting for magic header */
+    FLAGS,      /* i: waiting for method and flags (gzip) */
+    TIME,       /* i: waiting for modification time (gzip) */
+    OS,         /* i: waiting for extra flags and operating system (gzip) */
+    EXLEN,      /* i: waiting for extra length (gzip) */
+    EXTRA,      /* i: waiting for extra bytes (gzip) */
+    NAME,       /* i: waiting for end of file name (gzip) */
+    COMMENT,    /* i: waiting for end of comment (gzip) */
+    HCRC,       /* i: waiting for header crc (gzip) */
+    DICTID,     /* i: waiting for dictionary check value */
+    DICT,       /* waiting for inflateSetDictionary() call */
+        TYPE,       /* i: waiting for type bits, including last-flag bit */
+        TYPEDO,     /* i: same, but skip check to exit inflate on new block */
+        STORED,     /* i: waiting for stored size (length and complement) */
+        COPY_,      /* i/o: same as COPY below, but only first time in */
+        COPY,       /* i/o: waiting for input or output to copy stored block */
+        TABLE,      /* i: waiting for dynamic block table lengths */
+        LENLENS,    /* i: waiting for code length code lengths */
+        CODELENS,   /* i: waiting for length/lit and distance code lengths */
+            LEN_,       /* i: same as LEN below, but only first time in */
+            LEN,        /* i: waiting for length/lit/eob code */
+            LENEXT,     /* i: waiting for length extra bits */
+            DIST,       /* i: waiting for distance code */
+            DISTEXT,    /* i: waiting for distance extra bits */
+            MATCH,      /* o: waiting for output space to copy string */
+            LIT,        /* o: waiting for output space to write literal */
+    CHECK,      /* i: waiting for 32-bit check value */
+    LENGTH,     /* i: waiting for 32-bit length (gzip) */
+    DONE,       /* finished check, done -- remain here until reset */
+    BAD,        /* got a data error -- remain here until reset */
+    MEM,        /* got an inflate() memory error -- remain here until reset */
+    SYNC        /* looking for synchronization bytes to restart inflate() */
+} inflate_mode;
+
+/*
+    State transitions between above modes -
+
+    (most modes can go to BAD or MEM on error -- not shown for clarity)
+
+    Process header:
+        HEAD -> (gzip) or (zlib) or (raw)
+        (gzip) -> FLAGS -> TIME -> OS -> EXLEN -> EXTRA -> NAME -> COMMENT ->
+                  HCRC -> TYPE
+        (zlib) -> DICTID or TYPE
+        DICTID -> DICT -> TYPE
+        (raw) -> TYPEDO
+    Read deflate blocks:
+            TYPE -> TYPEDO -> STORED or TABLE or LEN_ or CHECK
+            STORED -> COPY_ -> COPY -> TYPE
+            TABLE -> LENLENS -> CODELENS -> LEN_
+            LEN_ -> LEN
+    Read deflate codes in fixed or dynamic block:
+                LEN -> LENEXT or LIT or TYPE
+                LENEXT -> DIST -> DISTEXT -> MATCH -> LEN
+                LIT -> LEN
+    Process trailer:
+        CHECK -> LENGTH -> DONE
+ */
+
+/* State maintained between inflate() calls -- approximately 7K bytes, not
+   including the allocated sliding window, which is up to 32K bytes. */
+struct inflate_state {
+    z_streamp strm;             /* pointer back to this zlib stream */
+    inflate_mode mode;          /* current inflate mode */
+    int last;                   /* true if processing last block */
+    int wrap;                   /* bit 0 true for zlib, bit 1 true for gzip,
+                                   bit 2 true to validate check value */
+    int havedict;               /* true if dictionary provided */
+    int flags;                  /* gzip header method and flags, 0 if zlib, or
+                                   -1 if raw or no header yet */
+    unsigned dmax;              /* zlib header max distance (INFLATE_STRICT) */
+    unsigned long check;        /* protected copy of check value */
+    unsigned long total;        /* protected copy of output count */
+    gz_headerp head;            /* where to save gzip header information */
+        /* sliding window */
+    unsigned wbits;             /* log base 2 of requested window size */
+    unsigned wsize;             /* window size or zero if not using window */
+    unsigned whave;             /* valid bytes in the window */
+    unsigned wnext;             /* window write index */
+    unsigned char FAR *window;  /* allocated sliding window, if needed */
+        /* bit accumulator */
+    unsigned long hold;         /* input bit accumulator */
+    unsigned bits;              /* number of bits in "in" */
+        /* for string and stored block copying */
+    unsigned length;            /* literal or length of data to copy */
+    unsigned offset;            /* distance back to copy string from */
+        /* for table and code decoding */
+    unsigned extra;             /* extra bits needed */
+        /* fixed and dynamic code tables */
+    code const FAR *lencode;    /* starting table for length/literal codes */
+    code const FAR *distcode;   /* starting table for distance codes */
+    unsigned lenbits;           /* index bits for lencode */
+    unsigned distbits;          /* index bits for distcode */
+        /* dynamic table building */
+    unsigned ncode;             /* number of code length code lengths */
+    unsigned nlen;              /* number of length code lengths */
+    unsigned ndist;             /* number of distance code lengths */
+    unsigned have;              /* number of code lengths in lens[] */
+    code FAR *next;             /* next available space in codes[] */
+    unsigned short lens[320];   /* temporary storage for code lengths */
+    unsigned short work[288];   /* work area for code table building */
+    code codes[ENOUGH];         /* space for code tables */
+    int sane;                   /* if false, allow invalid distance too far */
+    int back;                   /* bits back of last unprocessed length/lit */
+    unsigned was;               /* initial length of match */
+};
diff --git a/compat/zlib/inftrees.c b/compat/zlib/inftrees.c
new file mode 100644
index 0000000..98cfe16
--- /dev/null
+++ b/compat/zlib/inftrees.c
@@ -0,0 +1,299 @@
+/* inftrees.c -- generate Huffman trees for efficient decoding
+ * Copyright (C) 1995-2024 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "zutil.h"
+#include "inftrees.h"
+
+#define MAXBITS 15
+
+const char inflate_copyright[] =
+   " inflate 1.3.1 Copyright 1995-2024 Mark Adler ";
+/*
+  If you use the zlib library in a product, an acknowledgment is welcome
+  in the documentation of your product. If for some reason you cannot
+  include such an acknowledgment, I would appreciate that you keep this
+  copyright string in the executable of your product.
+ */
+
+/*
+   Build a set of tables to decode the provided canonical Huffman code.
+   The code lengths are lens[0..codes-1].  The result starts at *table,
+   whose indices are 0..2^bits-1.  work is a writable array of at least
+   lens shorts, which is used as a work area.  type is the type of code
+   to be generated, CODES, LENS, or DISTS.  On return, zero is success,
+   -1 is an invalid code, and +1 means that ENOUGH isn't enough.  table
+   on return points to the next available entry's address.  bits is the
+   requested root table index bits, and on return it is the actual root
+   table index bits.  It will differ if the request is greater than the
+   longest code or if it is less than the shortest code.
+ */
+int ZLIB_INTERNAL inflate_table(codetype type, unsigned short FAR *lens,
+                                unsigned codes, code FAR * FAR *table,
+                                unsigned FAR *bits, unsigned short FAR *work) {
+    unsigned len;               /* a code's length in bits */
+    unsigned sym;               /* index of code symbols */
+    unsigned min, max;          /* minimum and maximum code lengths */
+    unsigned root;              /* number of index bits for root table */
+    unsigned curr;              /* number of index bits for current table */
+    unsigned drop;              /* code bits to drop for sub-table */
+    int left;                   /* number of prefix codes available */
+    unsigned used;              /* code entries in table used */
+    unsigned huff;              /* Huffman code */
+    unsigned incr;              /* for incrementing code, index */
+    unsigned fill;              /* index for replicating entries */
+    unsigned low;               /* low bits for current root entry */
+    unsigned mask;              /* mask for low root bits */
+    code here;                  /* table entry for duplication */
+    code FAR *next;             /* next available space in table */
+    const unsigned short FAR *base;     /* base value table to use */
+    const unsigned short FAR *extra;    /* extra bits table to use */
+    unsigned match;             /* use base and extra for symbol >= match */
+    unsigned short count[MAXBITS+1];    /* number of codes of each length */
+    unsigned short offs[MAXBITS+1];     /* offsets in table for each length */
+    static const unsigned short lbase[31] = { /* Length codes 257..285 base */
+        3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
+        35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
+    static const unsigned short lext[31] = { /* Length codes 257..285 extra */
+        16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18,
+        19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 203, 77};
+    static const unsigned short dbase[32] = { /* Distance codes 0..29 base */
+        1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
+        257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
+        8193, 12289, 16385, 24577, 0, 0};
+    static const unsigned short dext[32] = { /* Distance codes 0..29 extra */
+        16, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22,
+        23, 23, 24, 24, 25, 25, 26, 26, 27, 27,
+        28, 28, 29, 29, 64, 64};
+
+    /*
+       Process a set of code lengths to create a canonical Huffman code.  The
+       code lengths are lens[0..codes-1].  Each length corresponds to the
+       symbols 0..codes-1.  The Huffman code is generated by first sorting the
+       symbols by length from short to long, and retaining the symbol order
+       for codes with equal lengths.  Then the code starts with all zero bits
+       for the first code of the shortest length, and the codes are integer
+       increments for the same length, and zeros are appended as the length
+       increases.  For the deflate format, these bits are stored backwards
+       from their more natural integer increment ordering, and so when the
+       decoding tables are built in the large loop below, the integer codes
+       are incremented backwards.
+
+       This routine assumes, but does not check, that all of the entries in
+       lens[] are in the range 0..MAXBITS.  The caller must assure this.
+       1..MAXBITS is interpreted as that code length.  zero means that that
+       symbol does not occur in this code.
+
+       The codes are sorted by computing a count of codes for each length,
+       creating from that a table of starting indices for each length in the
+       sorted table, and then entering the symbols in order in the sorted
+       table.  The sorted table is work[], with that space being provided by
+       the caller.
+
+       The length counts are used for other purposes as well, i.e. finding
+       the minimum and maximum length codes, determining if there are any
+       codes at all, checking for a valid set of lengths, and looking ahead
+       at length counts to determine sub-table sizes when building the
+       decoding tables.
+     */
+
+    /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */
+    for (len = 0; len <= MAXBITS; len++)
+        count[len] = 0;
+    for (sym = 0; sym < codes; sym++)
+        count[lens[sym]]++;
+
+    /* bound code lengths, force root to be within code lengths */
+    root = *bits;
+    for (max = MAXBITS; max >= 1; max--)
+        if (count[max] != 0) break;
+    if (root > max) root = max;
+    if (max == 0) {                     /* no symbols to code at all */
+        here.op = (unsigned char)64;    /* invalid code marker */
+        here.bits = (unsigned char)1;
+        here.val = (unsigned short)0;
+        *(*table)++ = here;             /* make a table to force an error */
+        *(*table)++ = here;
+        *bits = 1;
+        return 0;     /* no symbols, but wait for decoding to report error */
+    }
+    for (min = 1; min < max; min++)
+        if (count[min] != 0) break;
+    if (root < min) root = min;
+
+    /* check for an over-subscribed or incomplete set of lengths */
+    left = 1;
+    for (len = 1; len <= MAXBITS; len++) {
+        left <<= 1;
+        left -= count[len];
+        if (left < 0) return -1;        /* over-subscribed */
+    }
+    if (left > 0 && (type == CODES || max != 1))
+        return -1;                      /* incomplete set */
+
+    /* generate offsets into symbol table for each length for sorting */
+    offs[1] = 0;
+    for (len = 1; len < MAXBITS; len++)
+        offs[len + 1] = offs[len] + count[len];
+
+    /* sort symbols by length, by symbol order within each length */
+    for (sym = 0; sym < codes; sym++)
+        if (lens[sym] != 0) work[offs[lens[sym]]++] = (unsigned short)sym;
+
+    /*
+       Create and fill in decoding tables.  In this loop, the table being
+       filled is at next and has curr index bits.  The code being used is huff
+       with length len.  That code is converted to an index by dropping drop
+       bits off of the bottom.  For codes where len is less than drop + curr,
+       those top drop + curr - len bits are incremented through all values to
+       fill the table with replicated entries.
+
+       root is the number of index bits for the root table.  When len exceeds
+       root, sub-tables are created pointed to by the root entry with an index
+       of the low root bits of huff.  This is saved in low to check for when a
+       new sub-table should be started.  drop is zero when the root table is
+       being filled, and drop is root when sub-tables are being filled.
+
+       When a new sub-table is needed, it is necessary to look ahead in the
+       code lengths to determine what size sub-table is needed.  The length
+       counts are used for this, and so count[] is decremented as codes are
+       entered in the tables.
+
+       used keeps track of how many table entries have been allocated from the
+       provided *table space.  It is checked for LENS and DIST tables against
+       the constants ENOUGH_LENS and ENOUGH_DISTS to guard against changes in
+       the initial root table size constants.  See the comments in inftrees.h
+       for more information.
+
+       sym increments through all symbols, and the loop terminates when
+       all codes of length max, i.e. all codes, have been processed.  This
+       routine permits incomplete codes, so another loop after this one fills
+       in the rest of the decoding tables with invalid code markers.
+     */
+
+    /* set up for code type */
+    switch (type) {
+    case CODES:
+        base = extra = work;    /* dummy value--not used */
+        match = 20;
+        break;
+    case LENS:
+        base = lbase;
+        extra = lext;
+        match = 257;
+        break;
+    default:    /* DISTS */
+        base = dbase;
+        extra = dext;
+        match = 0;
+    }
+
+    /* initialize state for loop */
+    huff = 0;                   /* starting code */
+    sym = 0;                    /* starting code symbol */
+    len = min;                  /* starting code length */
+    next = *table;              /* current table to fill in */
+    curr = root;                /* current table index bits */
+    drop = 0;                   /* current bits to drop from code for index */
+    low = (unsigned)(-1);       /* trigger new sub-table when len > root */
+    used = 1U << root;          /* use root table entries */
+    mask = used - 1;            /* mask for comparing low */
+
+    /* check available table space */
+    if ((type == LENS && used > ENOUGH_LENS) ||
+        (type == DISTS && used > ENOUGH_DISTS))
+        return 1;
+
+    /* process all codes and make table entries */
+    for (;;) {
+        /* create table entry */
+        here.bits = (unsigned char)(len - drop);
+        if (work[sym] + 1U < match) {
+            here.op = (unsigned char)0;
+            here.val = work[sym];
+        }
+        else if (work[sym] >= match) {
+            here.op = (unsigned char)(extra[work[sym] - match]);
+            here.val = base[work[sym] - match];
+        }
+        else {
+            here.op = (unsigned char)(32 + 64);         /* end of block */
+            here.val = 0;
+        }
+
+        /* replicate for those indices with low len bits equal to huff */
+        incr = 1U << (len - drop);
+        fill = 1U << curr;
+        min = fill;                 /* save offset to next table */
+        do {
+            fill -= incr;
+            next[(huff >> drop) + fill] = here;
+        } while (fill != 0);
+
+        /* backwards increment the len-bit code huff */
+        incr = 1U << (len - 1);
+        while (huff & incr)
+            incr >>= 1;
+        if (incr != 0) {
+            huff &= incr - 1;
+            huff += incr;
+        }
+        else
+            huff = 0;
+
+        /* go to next symbol, update count, len */
+        sym++;
+        if (--(count[len]) == 0) {
+            if (len == max) break;
+            len = lens[work[sym]];
+        }
+
+        /* create new sub-table if needed */
+        if (len > root && (huff & mask) != low) {
+            /* if first time, transition to sub-tables */
+            if (drop == 0)
+                drop = root;
+
+            /* increment past last table */
+            next += min;            /* here min is 1 << curr */
+
+            /* determine length of next table */
+            curr = len - drop;
+            left = (int)(1 << curr);
+            while (curr + drop < max) {
+                left -= count[curr + drop];
+                if (left <= 0) break;
+                curr++;
+                left <<= 1;
+            }
+
+            /* check for enough space */
+            used += 1U << curr;
+            if ((type == LENS && used > ENOUGH_LENS) ||
+                (type == DISTS && used > ENOUGH_DISTS))
+                return 1;
+
+            /* point entry in root table to sub-table */
+            low = huff & mask;
+            (*table)[low].op = (unsigned char)curr;
+            (*table)[low].bits = (unsigned char)root;
+            (*table)[low].val = (unsigned short)(next - *table);
+        }
+    }
+
+    /* fill in remaining table entry if code is incomplete (guaranteed to have
+       at most one remaining entry, since if the code is incomplete, the
+       maximum code length that was allowed to get this far is one bit) */
+    if (huff != 0) {
+        here.op = (unsigned char)64;            /* invalid code marker */
+        here.bits = (unsigned char)(len - drop);
+        here.val = (unsigned short)0;
+        next[huff] = here;
+    }
+
+    /* set return parameters */
+    *table += used;
+    *bits = root;
+    return 0;
+}
diff --git a/compat/zlib/inftrees.h b/compat/zlib/inftrees.h
new file mode 100644
index 0000000..396f74b
--- /dev/null
+++ b/compat/zlib/inftrees.h
@@ -0,0 +1,62 @@
+/* inftrees.h -- header to use inftrees.c
+ * Copyright (C) 1995-2005, 2010 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+   part of the implementation of the compression library and is
+   subject to change. Applications should only use zlib.h.
+ */
+
+/* Structure for decoding tables.  Each entry provides either the
+   information needed to do the operation requested by the code that
+   indexed that table entry, or it provides a pointer to another
+   table that indexes more bits of the code.  op indicates whether
+   the entry is a pointer to another table, a literal, a length or
+   distance, an end-of-block, or an invalid code.  For a table
+   pointer, the low four bits of op is the number of index bits of
+   that table.  For a length or distance, the low four bits of op
+   is the number of extra bits to get after the code.  bits is
+   the number of bits in this code or part of the code to drop off
+   of the bit buffer.  val is the actual byte to output in the case
+   of a literal, the base length or distance, or the offset from
+   the current table to the next table.  Each entry is four bytes. */
+typedef struct {
+    unsigned char op;           /* operation, extra bits, table bits */
+    unsigned char bits;         /* bits in this part of the code */
+    unsigned short val;         /* offset in table or code value */
+} code;
+
+/* op values as set by inflate_table():
+    00000000 - literal
+    0000tttt - table link, tttt != 0 is the number of table index bits
+    0001eeee - length or distance, eeee is the number of extra bits
+    01100000 - end of block
+    01000000 - invalid code
+ */
+
+/* Maximum size of the dynamic table.  The maximum number of code structures is
+   1444, which is the sum of 852 for literal/length codes and 592 for distance
+   codes.  These values were found by exhaustive searches using the program
+   examples/enough.c found in the zlib distribution.  The arguments to that
+   program are the number of symbols, the initial root table size, and the
+   maximum bit length of a code.  "enough 286 9 15" for literal/length codes
+   returns 852, and "enough 30 6 15" for distance codes returns 592. The
+   initial root table size (9 or 6) is found in the fifth argument of the
+   inflate_table() calls in inflate.c and infback.c.  If the root table size is
+   changed, then these maximum sizes would be need to be recalculated and
+   updated. */
+#define ENOUGH_LENS 852
+#define ENOUGH_DISTS 592
+#define ENOUGH (ENOUGH_LENS+ENOUGH_DISTS)
+
+/* Type of code to build for inflate_table() */
+typedef enum {
+    CODES,
+    LENS,
+    DISTS
+} codetype;
+
+int ZLIB_INTERNAL inflate_table(codetype type, unsigned short FAR *lens,
+                                unsigned codes, code FAR * FAR *table,
+                                unsigned FAR *bits, unsigned short FAR *work);
diff --git a/compat/zlib/make_vms.com b/compat/zlib/make_vms.com
new file mode 100644
index 0000000..4dc8a89
--- /dev/null
+++ b/compat/zlib/make_vms.com
@@ -0,0 +1,867 @@
+$! make libz under VMS written by
+$! Martin P.J. Zinser
+$!
+$! In case of problems with the install you might contact me at
+$! zinser@zinser.no-ip.info(preferred) or
+$! martin.zinser@eurexchange.com (work)
+$!
+$! Make procedure history for Zlib
+$!
+$!------------------------------------------------------------------------------
+$! Version history
+$! 0.01 20060120 First version to receive a number
+$! 0.02 20061008 Adapt to new Makefile.in
+$! 0.03 20091224 Add support for large file check
+$! 0.04 20100110 Add new gzclose, gzlib, gzread, gzwrite
+$! 0.05 20100221 Exchange zlibdefs.h by zconf.h.in
+$! 0.06 20120111 Fix missing amiss_err, update zconf_h.in, fix new examples
+$!               subdir path, update module search in makefile.in
+$! 0.07 20120115 Triggered by work done by Alexey Chupahin completely redesigned
+$!               shared image creation
+$! 0.08 20120219 Make it work on VAX again, pre-load missing symbols to shared
+$!               image
+$! 0.09 20120305 SMS.  P1 sets builder ("MMK", "MMS", " " (built-in)).
+$!               "" -> automatic, preference: MMK, MMS, built-in.
+$!
+$ on error then goto err_exit
+$!
+$ true  = 1
+$ false = 0
+$ tmpnam = "temp_" + f$getjpi("","pid")
+$ tt = tmpnam + ".txt"
+$ tc = tmpnam + ".c"
+$ th = tmpnam + ".h"
+$ define/nolog tconfig 'th'
+$ its_decc = false
+$ its_vaxc = false
+$ its_gnuc = false
+$ s_case   = False
+$!
+$! Setup variables holding "config" information
+$!
+$ Make    = "''p1'"
+$ name     = "Zlib"
+$ version  = "?.?.?"
+$ v_string = "ZLIB_VERSION"
+$ v_file   = "zlib.h"
+$ ccopt   = "/include = []"
+$ lopts   = ""
+$ dnsrl   = ""
+$ aconf_in_file = "zconf.h.in#zconf.h_in#zconf_h.in"
+$ conf_check_string = ""
+$ linkonly = false
+$ optfile  = name + ".opt"
+$ mapfile  = name + ".map"
+$ libdefs  = ""
+$ vax      = f$getsyi("HW_MODEL").lt.1024
+$ axp      = f$getsyi("HW_MODEL").ge.1024 .and. f$getsyi("HW_MODEL").lt.4096
+$ ia64     = f$getsyi("HW_MODEL").ge.4096
+$!
+$! 2012-03-05 SMS.
+$! Why is this needed?  And if it is needed, why not simply ".not. vax"?
+$!
+$!!! if axp .or. ia64 then  set proc/parse=extended
+$!
+$ whoami = f$parse(f$environment("Procedure"),,,,"NO_CONCEAL")
+$ mydef  = F$parse(whoami,,,"DEVICE")
+$ mydir  = f$parse(whoami,,,"DIRECTORY") - "]["
+$ myproc = f$parse(whoami,,,"Name") + f$parse(whoami,,,"type")
+$!
+$! Check for MMK/MMS
+$!
+$ if (Make .eqs. "")
+$ then
+$   If F$Search ("Sys$System:MMS.EXE") .nes. "" Then Make = "MMS"
+$   If F$Type (MMK) .eqs. "STRING" Then Make = "MMK"
+$ else
+$   Make = f$edit( Make, "trim")
+$ endif
+$!
+$ gosub find_version
+$!
+$  open/write topt tmp.opt
+$  open/write optf 'optfile'
+$!
+$ gosub check_opts
+$!
+$! Look for the compiler used
+$!
+$ gosub check_compiler
+$ close topt
+$ close optf
+$!
+$ if its_decc
+$ then
+$   ccopt = "/prefix=all" + ccopt
+$   if f$trnlnm("SYS") .eqs. ""
+$   then
+$     if axp
+$     then
+$       define sys sys$library:
+$     else
+$       ccopt = "/decc" + ccopt
+$       define sys decc$library_include:
+$     endif
+$   endif
+$!
+$! 2012-03-05 SMS.
+$! Why /NAMES = AS_IS?  Why not simply ".not. vax"?  And why not on VAX?
+$!
+$   if axp .or. ia64
+$   then
+$       ccopt = ccopt + "/name=as_is/opt=(inline=speed)"
+$       s_case = true
+$   endif
+$ endif
+$ if its_vaxc .or. its_gnuc
+$ then
+$    if f$trnlnm("SYS").eqs."" then define sys sys$library:
+$ endif
+$!
+$! Build a fake configure input header
+$!
+$ open/write conf_hin config.hin
+$ write conf_hin "#undef _LARGEFILE64_SOURCE"
+$ close conf_hin
+$!
+$!
+$ i = 0
+$FIND_ACONF:
+$ fname = f$element(i,"#",aconf_in_file)
+$ if fname .eqs. "#" then goto AMISS_ERR
+$ if f$search(fname) .eqs. ""
+$ then
+$   i = i + 1
+$   goto find_aconf
+$ endif
+$ open/read/err=aconf_err aconf_in 'fname'
+$ open/write aconf zconf.h
+$ACONF_LOOP:
+$ read/end_of_file=aconf_exit aconf_in line
+$ work = f$edit(line, "compress,trim")
+$ if f$extract(0,6,work) .nes. "#undef"
+$ then
+$   if f$extract(0,12,work) .nes. "#cmakedefine"
+$   then
+$       write aconf line
+$   endif
+$ else
+$   cdef = f$element(1," ",work)
+$   gosub check_config
+$ endif
+$ goto aconf_loop
+$ACONF_EXIT:
+$ write aconf ""
+$ write aconf "/* VMS specifics added by make_vms.com: */"
+$ write aconf "#define VMS 1"
+$ write aconf "#include <unistd.h>"
+$ write aconf "#include <unixio.h>"
+$ write aconf "#ifdef _LARGEFILE"
+$ write aconf "# define off64_t __off64_t"
+$ write aconf "# define fopen64 fopen"
+$ write aconf "# define fseeko64 fseeko"
+$ write aconf "# define lseek64 lseek"
+$ write aconf "# define ftello64 ftell"
+$ write aconf "#endif"
+$ write aconf "#if !defined( __VAX) && (__CRTL_VER >= 70312000)"
+$ write aconf "# define HAVE_VSNPRINTF"
+$ write aconf "#endif"
+$ close aconf_in
+$ close aconf
+$ if f$search("''th'") .nes. "" then delete 'th';*
+$! Build the thing plain or with mms
+$!
+$ write sys$output "Compiling Zlib sources ..."
+$ if make.eqs.""
+$ then
+$   if (f$search( "example.obj;*") .nes. "") then delete example.obj;*
+$   if (f$search( "minigzip.obj;*") .nes. "") then delete minigzip.obj;*
+$   CALL MAKE adler32.OBJ "CC ''CCOPT' adler32" -
+                adler32.c zlib.h zconf.h
+$   CALL MAKE compress.OBJ "CC ''CCOPT' compress" -
+                compress.c zlib.h zconf.h
+$   CALL MAKE crc32.OBJ "CC ''CCOPT' crc32" -
+                crc32.c zlib.h zconf.h
+$   CALL MAKE deflate.OBJ "CC ''CCOPT' deflate" -
+                deflate.c deflate.h zutil.h zlib.h zconf.h
+$   CALL MAKE gzclose.OBJ "CC ''CCOPT' gzclose" -
+                gzclose.c zutil.h zlib.h zconf.h
+$   CALL MAKE gzlib.OBJ "CC ''CCOPT' gzlib" -
+                gzlib.c zutil.h zlib.h zconf.h
+$   CALL MAKE gzread.OBJ "CC ''CCOPT' gzread" -
+                gzread.c zutil.h zlib.h zconf.h
+$   CALL MAKE gzwrite.OBJ "CC ''CCOPT' gzwrite" -
+                gzwrite.c zutil.h zlib.h zconf.h
+$   CALL MAKE infback.OBJ "CC ''CCOPT' infback" -
+                infback.c zutil.h inftrees.h inflate.h inffast.h inffixed.h
+$   CALL MAKE inffast.OBJ "CC ''CCOPT' inffast" -
+                inffast.c zutil.h zlib.h zconf.h inffast.h
+$   CALL MAKE inflate.OBJ "CC ''CCOPT' inflate" -
+                inflate.c zutil.h zlib.h zconf.h infblock.h
+$   CALL MAKE inftrees.OBJ "CC ''CCOPT' inftrees" -
+                inftrees.c zutil.h zlib.h zconf.h inftrees.h
+$   CALL MAKE trees.OBJ "CC ''CCOPT' trees" -
+                trees.c deflate.h zutil.h zlib.h zconf.h
+$   CALL MAKE uncompr.OBJ "CC ''CCOPT' uncompr" -
+                uncompr.c zlib.h zconf.h
+$   CALL MAKE zutil.OBJ "CC ''CCOPT' zutil" -
+                zutil.c zutil.h zlib.h zconf.h
+$   write sys$output "Building Zlib ..."
+$   CALL MAKE libz.OLB "lib/crea libz.olb *.obj" *.OBJ
+$   write sys$output "Building example..."
+$   CALL MAKE example.OBJ "CC ''CCOPT' [.test]example" -
+                [.test]example.c zlib.h zconf.h
+$   call make example.exe "LINK example,libz.olb/lib" example.obj libz.olb
+$   write sys$output "Building minigzip..."
+$   CALL MAKE minigzip.OBJ "CC ''CCOPT' [.test]minigzip" -
+              [.test]minigzip.c zlib.h zconf.h
+$   call make minigzip.exe -
+              "LINK minigzip,libz.olb/lib" -
+              minigzip.obj libz.olb
+$ else
+$   gosub crea_mms
+$   write sys$output "Make ''name' ''version' with ''Make' "
+$   'make'
+$ endif
+$!
+$! Create shareable image
+$!
+$ gosub crea_olist
+$ write sys$output "Creating libzshr.exe"
+$ call map_2_shopt 'mapfile' 'optfile'
+$ LINK_'lopts'/SHARE=libzshr.exe modules.opt/opt,'optfile'/opt
+$ write sys$output "Zlib build completed"
+$ delete/nolog tmp.opt;*
+$ exit
+$AMISS_ERR:
+$ write sys$output "No source for config.hin found."
+$ write sys$output "Tried any of ''aconf_in_file'"
+$ goto err_exit
+$CC_ERR:
+$ write sys$output "C compiler required to build ''name'"
+$ goto err_exit
+$ERR_EXIT:
+$ set message/facil/ident/sever/text
+$ close/nolog optf
+$ close/nolog topt
+$ close/nolog aconf_in
+$ close/nolog aconf
+$ close/nolog out
+$ close/nolog min
+$ close/nolog mod
+$ close/nolog h_in
+$ write sys$output "Exiting..."
+$ exit 2
+$!
+$!
+$MAKE: SUBROUTINE   !SUBROUTINE TO CHECK DEPENDENCIES
+$ V = 'F$Verify(0)
+$! P1 = What we are trying to make
+$! P2 = Command to make it
+$! P3 - P8  What it depends on
+$
+$ If F$Search(P1) .Eqs. "" Then Goto Makeit
+$ Time = F$CvTime(F$File(P1,"RDT"))
+$arg=3
+$Loop:
+$       Argument = P'arg
+$       If Argument .Eqs. "" Then Goto Exit
+$       El=0
+$Loop2:
+$       File = F$Element(El," ",Argument)
+$       If File .Eqs. " " Then Goto Endl
+$       AFile = ""
+$Loop3:
+$       OFile = AFile
+$       AFile = F$Search(File)
+$       If AFile .Eqs. "" .Or. AFile .Eqs. OFile Then Goto NextEl
+$       If F$CvTime(F$File(AFile,"RDT")) .Ges. Time Then Goto Makeit
+$       Goto Loop3
+$NextEL:
+$       El = El + 1
+$       Goto Loop2
+$EndL:
+$ arg=arg+1
+$ If arg .Le. 8 Then Goto Loop
+$ Goto Exit
+$
+$Makeit:
+$ VV=F$VERIFY(0)
+$ write sys$output P2
+$ 'P2
+$ VV='F$Verify(VV)
+$Exit:
+$ If V Then Set Verify
+$ENDSUBROUTINE
+$!------------------------------------------------------------------------------
+$!
+$! Check command line options and set symbols accordingly
+$!
+$!------------------------------------------------------------------------------
+$! Version history
+$! 0.01 20041206 First version to receive a number
+$! 0.02 20060126 Add new "HELP" target
+$ CHECK_OPTS:
+$ i = 1
+$ OPT_LOOP:
+$ if i .lt. 9
+$ then
+$   cparm = f$edit(p'i',"upcase")
+$!
+$! Check if parameter actually contains something
+$!
+$   if f$edit(cparm,"trim") .nes. ""
+$   then
+$     if cparm .eqs. "DEBUG"
+$     then
+$       ccopt = ccopt + "/noopt/deb"
+$       lopts = lopts + "/deb"
+$     endif
+$     if f$locate("CCOPT=",cparm) .lt. f$length(cparm)
+$     then
+$       start = f$locate("=",cparm) + 1
+$       len   = f$length(cparm) - start
+$       ccopt = ccopt + f$extract(start,len,cparm)
+$       if f$locate("AS_IS",f$edit(ccopt,"UPCASE")) .lt. f$length(ccopt) -
+          then s_case = true
+$     endif
+$     if cparm .eqs. "LINK" then linkonly = true
+$     if f$locate("LOPTS=",cparm) .lt. f$length(cparm)
+$     then
+$       start = f$locate("=",cparm) + 1
+$       len   = f$length(cparm) - start
+$       lopts = lopts + f$extract(start,len,cparm)
+$     endif
+$     if f$locate("CC=",cparm) .lt. f$length(cparm)
+$     then
+$       start  = f$locate("=",cparm) + 1
+$       len    = f$length(cparm) - start
+$       cc_com = f$extract(start,len,cparm)
+        if (cc_com .nes. "DECC") .and. -
+           (cc_com .nes. "VAXC") .and. -
+           (cc_com .nes. "GNUC")
+$       then
+$         write sys$output "Unsupported compiler choice ''cc_com' ignored"
+$         write sys$output "Use DECC, VAXC, or GNUC instead"
+$       else
+$         if cc_com .eqs. "DECC" then its_decc = true
+$         if cc_com .eqs. "VAXC" then its_vaxc = true
+$         if cc_com .eqs. "GNUC" then its_gnuc = true
+$       endif
+$     endif
+$     if f$locate("MAKE=",cparm) .lt. f$length(cparm)
+$     then
+$       start  = f$locate("=",cparm) + 1
+$       len    = f$length(cparm) - start
+$       mmks = f$extract(start,len,cparm)
+$       if (mmks .eqs. "MMK") .or. (mmks .eqs. "MMS")
+$       then
+$         make = mmks
+$       else
+$         write sys$output "Unsupported make choice ''mmks' ignored"
+$         write sys$output "Use MMK or MMS instead"
+$       endif
+$     endif
+$     if cparm .eqs. "HELP" then gosub bhelp
+$   endif
+$   i = i + 1
+$   goto opt_loop
+$ endif
+$ return
+$!------------------------------------------------------------------------------
+$!
+$! Look for the compiler used
+$!
+$! Version history
+$! 0.01 20040223 First version to receive a number
+$! 0.02 20040229 Save/set value of decc$no_rooted_search_lists
+$! 0.03 20060202 Extend handling of GNU C
+$! 0.04 20090402 Compaq -> hp
+$CHECK_COMPILER:
+$ if (.not. (its_decc .or. its_vaxc .or. its_gnuc))
+$ then
+$   its_decc = (f$search("SYS$SYSTEM:DECC$COMPILER.EXE") .nes. "")
+$   its_vaxc = .not. its_decc .and. (F$Search("SYS$System:VAXC.Exe") .nes. "")
+$   its_gnuc = .not. (its_decc .or. its_vaxc) .and. (f$trnlnm("gnu_cc") .nes. "")
+$ endif
+$!
+$! Exit if no compiler available
+$!
+$ if (.not. (its_decc .or. its_vaxc .or. its_gnuc))
+$ then goto CC_ERR
+$ else
+$   if its_decc
+$   then
+$     write sys$output "CC compiler check ... hp C"
+$     if f$trnlnm("decc$no_rooted_search_lists") .nes. ""
+$     then
+$       dnrsl = f$trnlnm("decc$no_rooted_search_lists")
+$     endif
+$     define/nolog decc$no_rooted_search_lists 1
+$   else
+$     if its_vaxc then write sys$output "CC compiler check ... VAX C"
+$     if its_gnuc
+$     then
+$         write sys$output "CC compiler check ... GNU C"
+$         if f$trnlnm(topt) then write topt "gnu_cc:[000000]gcclib.olb/lib"
+$         if f$trnlnm(optf) then write optf "gnu_cc:[000000]gcclib.olb/lib"
+$         cc = "gcc"
+$     endif
+$     if f$trnlnm(topt) then write topt "sys$share:vaxcrtl.exe/share"
+$     if f$trnlnm(optf) then write optf "sys$share:vaxcrtl.exe/share"
+$   endif
+$ endif
+$ return
+$!------------------------------------------------------------------------------
+$!
+$! If MMS/MMK are available dump out the descrip.mms if required
+$!
+$CREA_MMS:
+$ write sys$output "Creating descrip.mms..."
+$ create descrip.mms
+$ open/append out descrip.mms
+$ copy sys$input: out
+$ deck
+# descrip.mms: MMS description file for building zlib on VMS
+# written by Martin P.J. Zinser
+# <zinser@zinser.no-ip.info or martin.zinser@eurexchange.com>
+
+OBJS = adler32.obj, compress.obj, crc32.obj, gzclose.obj, gzlib.obj\
+       gzread.obj, gzwrite.obj, uncompr.obj, infback.obj\
+       deflate.obj, trees.obj, zutil.obj, inflate.obj, \
+       inftrees.obj, inffast.obj
+
+$ eod
+$ write out "CFLAGS=", ccopt
+$ write out "LOPTS=", lopts
+$ write out "all : example.exe minigzip.exe libz.olb"
+$ copy sys$input: out
+$ deck
+        @ write sys$output " Example applications available"
+
+libz.olb : libz.olb($(OBJS))
+	@ write sys$output " libz available"
+
+example.exe : example.obj libz.olb
+              link $(LOPTS) example,libz.olb/lib
+
+minigzip.exe : minigzip.obj libz.olb
+              link $(LOPTS) minigzip,libz.olb/lib
+
+clean :
+	delete *.obj;*,libz.olb;*,*.opt;*,*.exe;*
+
+
+# Other dependencies.
+adler32.obj  : adler32.c zutil.h zlib.h zconf.h
+compress.obj : compress.c zlib.h zconf.h
+crc32.obj    : crc32.c zutil.h zlib.h zconf.h
+deflate.obj  : deflate.c deflate.h zutil.h zlib.h zconf.h
+example.obj  : [.test]example.c zlib.h zconf.h
+gzclose.obj  : gzclose.c zutil.h zlib.h zconf.h
+gzlib.obj    : gzlib.c zutil.h zlib.h zconf.h
+gzread.obj   : gzread.c zutil.h zlib.h zconf.h
+gzwrite.obj  : gzwrite.c zutil.h zlib.h zconf.h
+inffast.obj  : inffast.c zutil.h zlib.h zconf.h inftrees.h inffast.h
+inflate.obj  : inflate.c zutil.h zlib.h zconf.h
+inftrees.obj : inftrees.c zutil.h zlib.h zconf.h inftrees.h
+minigzip.obj : [.test]minigzip.c zlib.h zconf.h
+trees.obj    : trees.c deflate.h zutil.h zlib.h zconf.h
+uncompr.obj  : uncompr.c zlib.h zconf.h
+zutil.obj    : zutil.c zutil.h zlib.h zconf.h
+infback.obj  : infback.c zutil.h inftrees.h inflate.h inffast.h inffixed.h
+$ eod
+$ close out
+$ return
+$!------------------------------------------------------------------------------
+$!
+$! Read list of core library sources from makefile.in and create options
+$! needed to build shareable image
+$!
+$CREA_OLIST:
+$ open/read min makefile.in
+$ open/write mod modules.opt
+$ src_check_list = "OBJZ =#OBJG ="
+$MRLOOP:
+$ read/end=mrdone min rec
+$ i = 0
+$SRC_CHECK_LOOP:
+$ src_check = f$element(i, "#", src_check_list)
+$ i = i+1
+$ if src_check .eqs. "#" then goto mrloop
+$ if (f$extract(0,6,rec) .nes. src_check) then goto src_check_loop
+$ rec = rec - src_check
+$ gosub extra_filnam
+$ if (f$element(1,"\",rec) .eqs. "\") then goto mrloop
+$MRSLOOP:
+$ read/end=mrdone min rec
+$ gosub extra_filnam
+$ if (f$element(1,"\",rec) .nes. "\") then goto mrsloop
+$MRDONE:
+$ close min
+$ close mod
+$ return
+$!------------------------------------------------------------------------------
+$!
+$! Take record extracted in crea_olist and split it into single filenames
+$!
+$EXTRA_FILNAM:
+$ myrec = f$edit(rec - "\", "trim,compress")
+$ i = 0
+$FELOOP:
+$ srcfil = f$element(i," ", myrec)
+$ if (srcfil .nes. " ")
+$ then
+$   write mod f$parse(srcfil,,,"NAME"), ".obj"
+$   i = i + 1
+$   goto feloop
+$ endif
+$ return
+$!------------------------------------------------------------------------------
+$!
+$! Find current Zlib version number
+$!
+$FIND_VERSION:
+$ open/read h_in 'v_file'
+$hloop:
+$ read/end=hdone h_in rec
+$ rec = f$edit(rec,"TRIM")
+$ if (f$extract(0,1,rec) .nes. "#") then goto hloop
+$ rec = f$edit(rec - "#", "TRIM")
+$ if f$element(0," ",rec) .nes. "define" then goto hloop
+$ if f$element(1," ",rec) .eqs. v_string
+$ then
+$   version = 'f$element(2," ",rec)'
+$   goto hdone
+$ endif
+$ goto hloop
+$hdone:
+$ close h_in
+$ return
+$!------------------------------------------------------------------------------
+$!
+$CHECK_CONFIG:
+$!
+$ in_ldef = f$locate(cdef,libdefs)
+$ if (in_ldef .lt. f$length(libdefs))
+$ then
+$   write aconf "#define ''cdef' 1"
+$   libdefs = f$extract(0,in_ldef,libdefs) + -
+              f$extract(in_ldef + f$length(cdef) + 1, -
+                        f$length(libdefs) - in_ldef - f$length(cdef) - 1, -
+                        libdefs)
+$ else
+$   if (f$type('cdef') .eqs. "INTEGER")
+$   then
+$     write aconf "#define ''cdef' ", 'cdef'
+$   else
+$     if (f$type('cdef') .eqs. "STRING")
+$     then
+$       write aconf "#define ''cdef' ", """", '''cdef'', """"
+$     else
+$       gosub check_cc_def
+$     endif
+$   endif
+$ endif
+$ return
+$!------------------------------------------------------------------------------
+$!
+$! Check if this is a define relating to the properties of the C/C++
+$! compiler
+$!
+$ CHECK_CC_DEF:
+$ if (cdef .eqs. "_LARGEFILE64_SOURCE")
+$ then
+$   copy sys$input: 'tc'
+$   deck
+#include "tconfig"
+#define _LARGEFILE
+#include <stdio.h>
+
+int main(){
+FILE *fp;
+  fp = fopen("temp.txt","r");
+  fseeko(fp,1,SEEK_SET);
+  fclose(fp);
+}
+
+$   eod
+$   test_inv = false
+$   comm_h = false
+$   gosub cc_prop_check
+$   return
+$ endif
+$ write aconf "/* ", line, " */"
+$ return
+$!------------------------------------------------------------------------------
+$!
+$! Check for properties of C/C++ compiler
+$!
+$! Version history
+$! 0.01 20031020 First version to receive a number
+$! 0.02 20031022 Added logic for defines with value
+$! 0.03 20040309 Make sure local config file gets not deleted
+$! 0.04 20041230 Also write include for configure run
+$! 0.05 20050103 Add processing of "comment defines"
+$CC_PROP_CHECK:
+$ cc_prop = true
+$ is_need = false
+$ is_need = (f$extract(0,4,cdef) .eqs. "NEED") .or. (test_inv .eq. true)
+$ if f$search(th) .eqs. "" then create 'th'
+$ set message/nofac/noident/nosever/notext
+$ on error then continue
+$ cc 'tmpnam'
+$ if .not. ($status)  then cc_prop = false
+$ on error then continue
+$! The headers might lie about the capabilities of the RTL
+$ link 'tmpnam',tmp.opt/opt
+$ if .not. ($status)  then cc_prop = false
+$ set message/fac/ident/sever/text
+$ on error then goto err_exit
+$ delete/nolog 'tmpnam'.*;*/exclude='th'
+$ if (cc_prop .and. .not. is_need) .or. -
+     (.not. cc_prop .and. is_need)
+$ then
+$   write sys$output "Checking for ''cdef'... yes"
+$   if f$type('cdef_val'_yes) .nes. ""
+$   then
+$     if f$type('cdef_val'_yes) .eqs. "INTEGER" -
+         then call write_config f$fao("#define !AS !UL",cdef,'cdef_val'_yes)
+$     if f$type('cdef_val'_yes) .eqs. "STRING" -
+         then call write_config f$fao("#define !AS !AS",cdef,'cdef_val'_yes)
+$   else
+$     call write_config f$fao("#define !AS 1",cdef)
+$   endif
+$   if (cdef .eqs. "HAVE_FSEEKO") .or. (cdef .eqs. "_LARGE_FILES") .or. -
+       (cdef .eqs. "_LARGEFILE64_SOURCE") then -
+      call write_config f$string("#define _LARGEFILE 1")
+$ else
+$   write sys$output "Checking for ''cdef'... no"
+$   if (comm_h)
+$   then
+      call write_config f$fao("/* !AS */",line)
+$   else
+$     if f$type('cdef_val'_no) .nes. ""
+$     then
+$       if f$type('cdef_val'_no) .eqs. "INTEGER" -
+           then call write_config f$fao("#define !AS !UL",cdef,'cdef_val'_no)
+$       if f$type('cdef_val'_no) .eqs. "STRING" -
+           then call write_config f$fao("#define !AS !AS",cdef,'cdef_val'_no)
+$     else
+$       call write_config f$fao("#undef !AS",cdef)
+$     endif
+$   endif
+$ endif
+$ return
+$!------------------------------------------------------------------------------
+$!
+$! Check for properties of C/C++ compiler with multiple result values
+$!
+$! Version history
+$! 0.01 20040127 First version
+$! 0.02 20050103 Reconcile changes from cc_prop up to version 0.05
+$CC_MPROP_CHECK:
+$ cc_prop = true
+$ i    = 1
+$ idel = 1
+$ MT_LOOP:
+$ if f$type(result_'i') .eqs. "STRING"
+$ then
+$   set message/nofac/noident/nosever/notext
+$   on error then continue
+$   cc 'tmpnam'_'i'
+$   if .not. ($status)  then cc_prop = false
+$   on error then continue
+$! The headers might lie about the capabilities of the RTL
+$   link 'tmpnam'_'i',tmp.opt/opt
+$   if .not. ($status)  then cc_prop = false
+$   set message/fac/ident/sever/text
+$   on error then goto err_exit
+$   delete/nolog 'tmpnam'_'i'.*;*
+$   if (cc_prop)
+$   then
+$     write sys$output "Checking for ''cdef'... ", mdef_'i'
+$     if f$type(mdef_'i') .eqs. "INTEGER" -
+         then call write_config f$fao("#define !AS !UL",cdef,mdef_'i')
+$     if f$type('cdef_val'_yes) .eqs. "STRING" -
+         then call write_config f$fao("#define !AS !AS",cdef,mdef_'i')
+$     goto msym_clean
+$   else
+$     i = i + 1
+$     goto mt_loop
+$   endif
+$ endif
+$ write sys$output "Checking for ''cdef'... no"
+$ call write_config f$fao("#undef !AS",cdef)
+$ MSYM_CLEAN:
+$ if (idel .le. msym_max)
+$ then
+$   delete/sym mdef_'idel'
+$   idel = idel + 1
+$   goto msym_clean
+$ endif
+$ return
+$!------------------------------------------------------------------------------
+$!
+$! Write configuration to both permanent and temporary config file
+$!
+$! Version history
+$! 0.01 20031029 First version to receive a number
+$!
+$WRITE_CONFIG: SUBROUTINE
+$  write aconf 'p1'
+$  open/append confh 'th'
+$  write confh 'p1'
+$  close confh
+$ENDSUBROUTINE
+$!------------------------------------------------------------------------------
+$!
+$! Analyze the project map file and create the symbol vector for a shareable
+$! image from it
+$!
+$! Version history
+$! 0.01 20120128 First version
+$! 0.02 20120226 Add pre-load logic
+$!
+$ MAP_2_SHOPT: Subroutine
+$!
+$ SAY := "WRITE_ SYS$OUTPUT"
+$!
+$ IF F$SEARCH("''P1'") .EQS. ""
+$ THEN
+$    SAY "MAP_2_SHOPT-E-NOSUCHFILE:  Error, inputfile ''p1' not available"
+$    goto exit_m2s
+$ ENDIF
+$ IF "''P2'" .EQS. ""
+$ THEN
+$    SAY "MAP_2_SHOPT:  Error, no output file provided"
+$    goto exit_m2s
+$ ENDIF
+$!
+$ module1 = "deflate#deflateEnd#deflateInit_#deflateParams#deflateSetDictionary"
+$ module2 = "gzclose#gzerror#gzgetc#gzgets#gzopen#gzprintf#gzputc#gzputs#gzread"
+$ module3 = "gzseek#gztell#inflate#inflateEnd#inflateInit_#inflateSetDictionary"
+$ module4 = "inflateSync#uncompress#zlibVersion#compress"
+$ open/read map 'p1
+$ if axp .or. ia64
+$ then
+$     open/write aopt a.opt
+$     open/write bopt b.opt
+$     write aopt " CASE_SENSITIVE=YES"
+$     write bopt "SYMBOL_VECTOR= (-"
+$     mod_sym_num = 1
+$ MOD_SYM_LOOP:
+$     if f$type(module'mod_sym_num') .nes. ""
+$     then
+$         mod_in = 0
+$ MOD_SYM_IN:
+$         shared_proc = f$element(mod_in, "#", module'mod_sym_num')
+$         if shared_proc .nes. "#"
+$         then
+$             write aopt f$fao(" symbol_vector=(!AS/!AS=PROCEDURE)",-
+        		       f$edit(shared_proc,"upcase"),shared_proc)
+$             write bopt f$fao("!AS=PROCEDURE,-",shared_proc)
+$             mod_in = mod_in + 1
+$             goto mod_sym_in
+$         endif
+$         mod_sym_num = mod_sym_num + 1
+$         goto mod_sym_loop
+$     endif
+$MAP_LOOP:
+$     read/end=map_end map line
+$     if (f$locate("{",line).lt. f$length(line)) .or. -
+         (f$locate("global:", line) .lt. f$length(line))
+$     then
+$         proc = true
+$         goto map_loop
+$     endif
+$     if f$locate("}",line).lt. f$length(line) then proc = false
+$     if f$locate("local:", line) .lt. f$length(line) then proc = false
+$     if proc
+$     then
+$         shared_proc = f$edit(line,"collapse")
+$         chop_semi = f$locate(";", shared_proc)
+$         if chop_semi .lt. f$length(shared_proc) then -
+              shared_proc = f$extract(0, chop_semi, shared_proc)
+$         write aopt f$fao(" symbol_vector=(!AS/!AS=PROCEDURE)",-
+        			 f$edit(shared_proc,"upcase"),shared_proc)
+$         write bopt f$fao("!AS=PROCEDURE,-",shared_proc)
+$     endif
+$     goto map_loop
+$MAP_END:
+$     close/nolog aopt
+$     close/nolog bopt
+$     open/append libopt 'p2'
+$     open/read aopt a.opt
+$     open/read bopt b.opt
+$ALOOP:
+$     read/end=aloop_end aopt line
+$     write libopt line
+$     goto aloop
+$ALOOP_END:
+$     close/nolog aopt
+$     sv = ""
+$BLOOP:
+$     read/end=bloop_end bopt svn
+$     if (svn.nes."")
+$     then
+$        if (sv.nes."") then write libopt sv
+$        sv = svn
+$     endif
+$     goto bloop
+$BLOOP_END:
+$     write libopt f$extract(0,f$length(sv)-2,sv), "-"
+$     write libopt ")"
+$     close/nolog bopt
+$     delete/nolog/noconf a.opt;*,b.opt;*
+$ else
+$     if vax
+$     then
+$     open/append libopt 'p2'
+$     mod_sym_num = 1
+$ VMOD_SYM_LOOP:
+$     if f$type(module'mod_sym_num') .nes. ""
+$     then
+$         mod_in = 0
+$ VMOD_SYM_IN:
+$         shared_proc = f$element(mod_in, "#", module'mod_sym_num')
+$         if shared_proc .nes. "#"
+$         then
+$     	      write libopt f$fao("UNIVERSAL=!AS",-
+      	  			     f$edit(shared_proc,"upcase"))
+$             mod_in = mod_in + 1
+$             goto vmod_sym_in
+$         endif
+$         mod_sym_num = mod_sym_num + 1
+$         goto vmod_sym_loop
+$     endif
+$VMAP_LOOP:
+$     	  read/end=vmap_end map line
+$     	  if (f$locate("{",line).lt. f$length(line)) .or. -
+   	      (f$locate("global:", line) .lt. f$length(line))
+$     	  then
+$     	      proc = true
+$     	      goto vmap_loop
+$     	  endif
+$     	  if f$locate("}",line).lt. f$length(line) then proc = false
+$     	  if f$locate("local:", line) .lt. f$length(line) then proc = false
+$     	  if proc
+$     	  then
+$     	      shared_proc = f$edit(line,"collapse")
+$     	      chop_semi = f$locate(";", shared_proc)
+$     	      if chop_semi .lt. f$length(shared_proc) then -
+      	  	  shared_proc = f$extract(0, chop_semi, shared_proc)
+$     	      write libopt f$fao("UNIVERSAL=!AS",-
+      	  			     f$edit(shared_proc,"upcase"))
+$     	  endif
+$     	  goto vmap_loop
+$VMAP_END:
+$     else
+$         write sys$output "Unknown Architecture (Not VAX, AXP, or IA64)"
+$         write sys$output "No options file created"
+$     endif
+$ endif
+$ EXIT_M2S:
+$ close/nolog map
+$ close/nolog libopt
+$ endsubroutine
diff --git a/compat/zlib/msdos/Makefile.bor b/compat/zlib/msdos/Makefile.bor
new file mode 100644
index 0000000..3d12a2c
--- /dev/null
+++ b/compat/zlib/msdos/Makefile.bor
@@ -0,0 +1,115 @@
+# Makefile for zlib
+# Borland C++
+# Last updated: 15-Mar-2003
+
+# To use, do "make -fmakefile.bor"
+# To compile in small model, set below: MODEL=s
+
+# WARNING: the small model is supported but only for small values of
+# MAX_WBITS and MAX_MEM_LEVEL. For example:
+#    -DMAX_WBITS=11 -DDEF_WBITS=11 -DMAX_MEM_LEVEL=3
+# If you wish to reduce the memory requirements (default 256K for big
+# objects plus a few K), you can add to the LOC macro below:
+#   -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14
+# See zconf.h for details about the memory requirements.
+
+# ------------ Turbo C++, Borland C++ ------------
+
+#    Optional nonstandard preprocessor flags (e.g. -DMAX_MEM_LEVEL=7)
+#    should be added to the environment via "set LOCAL_ZLIB=-DFOO" or added
+#    to the declaration of LOC here:
+LOC = $(LOCAL_ZLIB)
+
+# type for CPU required: 0: 8086, 1: 80186, 2: 80286, 3: 80386, etc.
+CPU_TYP = 0
+
+# memory model: one of s, m, c, l (small, medium, compact, large)
+MODEL=l
+
+# replace bcc with tcc for Turbo C++ 1.0, with bcc32 for the 32 bit version
+CC=bcc
+LD=bcc
+AR=tlib
+
+# compiler flags
+# replace "-O2" by "-O -G -a -d" for Turbo C++ 1.0
+CFLAGS=-O2 -Z -m$(MODEL) $(LOC)
+
+LDFLAGS=-m$(MODEL) -f-
+
+
+# variables
+ZLIB_LIB = zlib_$(MODEL).lib
+
+OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj
+OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
+OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzclose.obj+gzlib.obj+gzread.obj
+OBJP2 = +gzwrite.obj+infback.obj+inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj
+
+
+# targets
+all: $(ZLIB_LIB) example.exe minigzip.exe
+
+.c.obj:
+	$(CC) -c $(CFLAGS) $*.c
+
+adler32.obj: adler32.c zlib.h zconf.h
+
+compress.obj: compress.c zlib.h zconf.h
+
+crc32.obj: crc32.c zlib.h zconf.h crc32.h
+
+deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
+
+gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h
+
+gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h
+
+gzread.obj: gzread.c zlib.h zconf.h gzguts.h
+
+gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h
+
+infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h
+
+inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
+
+trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
+
+uncompr.obj: uncompr.c zlib.h zconf.h
+
+zutil.obj: zutil.c zutil.h zlib.h zconf.h
+
+example.obj: test/example.c zlib.h zconf.h
+
+minigzip.obj: test/minigzip.c zlib.h zconf.h
+
+
+# the command line is cut to fit in the MS-DOS 128 byte limit:
+$(ZLIB_LIB): $(OBJ1) $(OBJ2)
+	-del $(ZLIB_LIB)
+	$(AR) $(ZLIB_LIB) $(OBJP1)
+	$(AR) $(ZLIB_LIB) $(OBJP2)
+
+example.exe: example.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) example.obj $(ZLIB_LIB)
+
+minigzip.exe: minigzip.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB)
+
+test: example.exe minigzip.exe
+	example
+	echo hello world | minigzip | minigzip -d
+
+clean:
+	-del *.obj
+	-del *.lib
+	-del *.exe
+	-del zlib_*.bak
+	-del foo.gz
diff --git a/compat/zlib/msdos/Makefile.dj2 b/compat/zlib/msdos/Makefile.dj2
new file mode 100644
index 0000000..59d2037
--- /dev/null
+++ b/compat/zlib/msdos/Makefile.dj2
@@ -0,0 +1,104 @@
+# Makefile for zlib.  Modified for djgpp v2.0 by F. J. Donahoe, 3/15/96.
+# Copyright (C) 1995-1998 Jean-loup Gailly.
+# For conditions of distribution and use, see copyright notice in zlib.h
+
+# To compile, or to compile and test, type:
+#
+#   make -fmakefile.dj2;  make test -fmakefile.dj2
+#
+# To install libz.a, zconf.h and zlib.h in the djgpp directories, type:
+#
+#    make install -fmakefile.dj2
+#
+# after first defining LIBRARY_PATH and INCLUDE_PATH in djgpp.env as
+# in the sample below if the pattern of the DJGPP distribution is to
+# be followed.  Remember that, while <sp>'es around <=> are ignored in
+# makefiles, they are *not* in batch files or in djgpp.env.
+# - - - - -
+# [make]
+# INCLUDE_PATH=%\>;INCLUDE_PATH%%\DJDIR%\include
+# LIBRARY_PATH=%\>;LIBRARY_PATH%%\DJDIR%\lib
+# BUTT=-m486
+# - - - - -
+# Alternately, these variables may be defined below, overriding the values
+# in djgpp.env, as
+# INCLUDE_PATH=c:\usr\include
+# LIBRARY_PATH=c:\usr\lib
+
+CC=gcc
+
+#CFLAGS=-MMD -O
+#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
+#CFLAGS=-MMD -g -DZLIB_DEBUG
+CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
+             -Wstrict-prototypes -Wmissing-prototypes
+
+# If cp.exe is available, replace "copy /Y" with "cp -fp" .
+CP=copy /Y
+# If gnu install.exe is available, replace $(CP) with ginstall.
+INSTALL=$(CP)
+# The default value of RM is "rm -f."  If "rm.exe" is found, comment out:
+RM=del
+LDLIBS=-L. -lz
+LD=$(CC) -s -o
+LDSHARED=$(CC)
+
+INCL=zlib.h zconf.h
+LIBS=libz.a
+
+AR=ar rcs
+
+prefix=/usr/local
+exec_prefix = $(prefix)
+
+OBJS = adler32.o compress.o crc32.o gzclose.o gzlib.o gzread.o gzwrite.o \
+       uncompr.o deflate.o trees.o zutil.o inflate.o infback.o inftrees.o inffast.o
+
+OBJA =
+# to use the asm code: make OBJA=match.o
+
+TEST_OBJS = example.o minigzip.o
+
+all: example.exe minigzip.exe
+
+check: test
+test: all
+	./example
+	echo hello world | .\minigzip | .\minigzip -d
+
+%.o : %.c
+	$(CC) $(CFLAGS) -c $< -o $@
+
+libz.a: $(OBJS) $(OBJA)
+	$(AR) $@ $(OBJS) $(OBJA)
+
+%.exe : %.o $(LIBS)
+	$(LD) $@ $< $(LDLIBS)
+
+# INCLUDE_PATH and LIBRARY_PATH were set for [make] in djgpp.env .
+
+.PHONY : uninstall clean
+
+install: $(INCL) $(LIBS)
+	-@if not exist $(INCLUDE_PATH)\nul mkdir $(INCLUDE_PATH)
+	-@if not exist $(LIBRARY_PATH)\nul mkdir $(LIBRARY_PATH)
+	$(INSTALL) zlib.h $(INCLUDE_PATH)
+	$(INSTALL) zconf.h $(INCLUDE_PATH)
+	$(INSTALL) libz.a $(LIBRARY_PATH)
+
+uninstall:
+	$(RM) $(INCLUDE_PATH)\zlib.h
+	$(RM) $(INCLUDE_PATH)\zconf.h
+	$(RM) $(LIBRARY_PATH)\libz.a
+
+clean:
+	$(RM) *.d
+	$(RM) *.o
+	$(RM) *.exe
+	$(RM) libz.a
+	$(RM) foo.gz
+
+DEPS := $(wildcard *.d)
+ifneq ($(DEPS),)
+include $(DEPS)
+endif
diff --git a/compat/zlib/msdos/Makefile.emx b/compat/zlib/msdos/Makefile.emx
new file mode 100644
index 0000000..e30f67b
--- /dev/null
+++ b/compat/zlib/msdos/Makefile.emx
@@ -0,0 +1,69 @@
+# Makefile for zlib.  Modified for emx 0.9c by Chr. Spieler, 6/17/98.
+# Copyright (C) 1995-1998 Jean-loup Gailly.
+# For conditions of distribution and use, see copyright notice in zlib.h
+
+# To compile, or to compile and test, type:
+#
+#   make -fmakefile.emx;  make test -fmakefile.emx
+#
+
+CC=gcc
+
+#CFLAGS=-MMD -O
+#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
+#CFLAGS=-MMD -g -DZLIB_DEBUG
+CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
+             -Wstrict-prototypes -Wmissing-prototypes
+
+# If cp.exe is available, replace "copy /Y" with "cp -fp" .
+CP=copy /Y
+# If gnu install.exe is available, replace $(CP) with ginstall.
+INSTALL=$(CP)
+# The default value of RM is "rm -f."  If "rm.exe" is found, comment out:
+RM=del
+LDLIBS=-L. -lzlib
+LD=$(CC) -s -o
+LDSHARED=$(CC)
+
+INCL=zlib.h zconf.h
+LIBS=zlib.a
+
+AR=ar rcs
+
+prefix=/usr/local
+exec_prefix = $(prefix)
+
+OBJS = adler32.o compress.o crc32.o gzclose.o gzlib.o gzread.o gzwrite.o \
+       uncompr.o deflate.o trees.o zutil.o inflate.o infback.o inftrees.o inffast.o
+
+TEST_OBJS = example.o minigzip.o
+
+all: example.exe minigzip.exe
+
+test: all
+	./example
+	echo hello world | .\minigzip | .\minigzip -d
+
+%.o : %.c
+	$(CC) $(CFLAGS) -c $< -o $@
+
+zlib.a: $(OBJS)
+	$(AR) $@ $(OBJS)
+
+%.exe : %.o $(LIBS)
+	$(LD) $@ $< $(LDLIBS)
+
+
+.PHONY : clean
+
+clean:
+	$(RM) *.d
+	$(RM) *.o
+	$(RM) *.exe
+	$(RM) zlib.a
+	$(RM) foo.gz
+
+DEPS := $(wildcard *.d)
+ifneq ($(DEPS),)
+include $(DEPS)
+endif
diff --git a/compat/zlib/msdos/Makefile.msc b/compat/zlib/msdos/Makefile.msc
new file mode 100644
index 0000000..ae83786
--- /dev/null
+++ b/compat/zlib/msdos/Makefile.msc
@@ -0,0 +1,112 @@
+# Makefile for zlib
+# Microsoft C 5.1 or later
+# Last updated: 19-Mar-2003
+
+# To use, do "make makefile.msc"
+# To compile in small model, set below: MODEL=S
+
+# If you wish to reduce the memory requirements (default 256K for big
+# objects plus a few K), you can add to the LOC macro below:
+#   -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14
+# See zconf.h for details about the memory requirements.
+
+# ------------- Microsoft C 5.1 and later -------------
+
+#    Optional nonstandard preprocessor flags (e.g. -DMAX_MEM_LEVEL=7)
+#    should be added to the environment via "set LOCAL_ZLIB=-DFOO" or added
+#    to the declaration of LOC here:
+LOC = $(LOCAL_ZLIB)
+
+# Type for CPU required: 0: 8086, 1: 80186, 2: 80286, 3: 80386, etc.
+CPU_TYP = 0
+
+# Memory model: one of S, M, C, L (small, medium, compact, large)
+MODEL=L
+
+CC=cl
+CFLAGS=-nologo -A$(MODEL) -G$(CPU_TYP) -W3 -Oait -Gs $(LOC)
+#-Ox generates bad code with MSC 5.1
+LIB_CFLAGS=-Zl $(CFLAGS)
+
+LD=link
+LDFLAGS=/noi/e/st:0x1500/noe/farcall/packcode
+# "/farcall/packcode" are only useful for `large code' memory models
+# but should be a "no-op" for small code models.
+
+
+# variables
+ZLIB_LIB = zlib_$(MODEL).lib
+
+OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj
+OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
+
+
+# targets
+all:  $(ZLIB_LIB) example.exe minigzip.exe
+
+.c.obj:
+	$(CC) -c $(LIB_CFLAGS) $*.c
+
+adler32.obj: adler32.c zlib.h zconf.h
+
+compress.obj: compress.c zlib.h zconf.h
+
+crc32.obj: crc32.c zlib.h zconf.h crc32.h
+
+deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
+
+gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h
+
+gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h
+
+gzread.obj: gzread.c zlib.h zconf.h gzguts.h
+
+gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h
+
+infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h
+
+inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
+
+trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
+
+uncompr.obj: uncompr.c zlib.h zconf.h
+
+zutil.obj: zutil.c zutil.h zlib.h zconf.h
+
+example.obj: test/example.c zlib.h zconf.h
+	$(CC) -c $(CFLAGS) $*.c
+
+minigzip.obj: test/minigzip.c zlib.h zconf.h
+	$(CC) -c $(CFLAGS) $*.c
+
+
+# the command line is cut to fit in the MS-DOS 128 byte limit:
+$(ZLIB_LIB): $(OBJ1) $(OBJ2)
+	if exist $(ZLIB_LIB) del $(ZLIB_LIB)
+	lib $(ZLIB_LIB) $(OBJ1);
+	lib $(ZLIB_LIB) $(OBJ2);
+
+example.exe: example.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) example.obj,,,$(ZLIB_LIB);
+
+minigzip.exe: minigzip.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) minigzip.obj,,,$(ZLIB_LIB);
+
+test: example.exe minigzip.exe
+	example
+	echo hello world | minigzip | minigzip -d
+
+clean:
+	-del *.obj
+	-del *.lib
+	-del *.exe
+	-del *.map
+	-del zlib_*.bak
+	-del foo.gz
diff --git a/compat/zlib/msdos/Makefile.tc b/compat/zlib/msdos/Makefile.tc
new file mode 100644
index 0000000..5aec82a
--- /dev/null
+++ b/compat/zlib/msdos/Makefile.tc
@@ -0,0 +1,100 @@
+# Makefile for zlib
+# Turbo C 2.01, Turbo C++ 1.01
+# Last updated: 15-Mar-2003
+
+# To use, do "make -fmakefile.tc"
+# To compile in small model, set below: MODEL=s
+
+# WARNING: the small model is supported but only for small values of
+# MAX_WBITS and MAX_MEM_LEVEL. For example:
+#    -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
+# If you wish to reduce the memory requirements (default 256K for big
+# objects plus a few K), you can add to CFLAGS below:
+#   -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14
+# See zconf.h for details about the memory requirements.
+
+# ------------ Turbo C 2.01, Turbo C++ 1.01 ------------
+MODEL=l
+CC=tcc
+LD=tcc
+AR=tlib
+# CFLAGS=-O2 -G -Z -m$(MODEL) -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
+CFLAGS=-O2 -G -Z -m$(MODEL)
+LDFLAGS=-m$(MODEL) -f-
+
+
+# variables
+ZLIB_LIB = zlib_$(MODEL).lib
+
+OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj
+OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
+OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzclose.obj+gzlib.obj+gzread.obj
+OBJP2 = +gzwrite.obj+infback.obj+inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj
+
+
+# targets
+all: $(ZLIB_LIB) example.exe minigzip.exe
+
+.c.obj:
+	$(CC) -c $(CFLAGS) $*.c
+
+adler32.obj: adler32.c zlib.h zconf.h
+
+compress.obj: compress.c zlib.h zconf.h
+
+crc32.obj: crc32.c zlib.h zconf.h crc32.h
+
+deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
+
+gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h
+
+gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h
+
+gzread.obj: gzread.c zlib.h zconf.h gzguts.h
+
+gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h
+
+infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h
+
+inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
+
+trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
+
+uncompr.obj: uncompr.c zlib.h zconf.h
+
+zutil.obj: zutil.c zutil.h zlib.h zconf.h
+
+example.obj: test/example.c zlib.h zconf.h
+
+minigzip.obj: test/minigzip.c zlib.h zconf.h
+
+
+# the command line is cut to fit in the MS-DOS 128 byte limit:
+$(ZLIB_LIB): $(OBJ1) $(OBJ2)
+	-del $(ZLIB_LIB)
+	$(AR) $(ZLIB_LIB) $(OBJP1)
+	$(AR) $(ZLIB_LIB) $(OBJP2)
+
+example.exe: example.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) example.obj $(ZLIB_LIB)
+
+minigzip.exe: minigzip.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB)
+
+test: example.exe minigzip.exe
+	example
+	echo hello world | minigzip | minigzip -d
+
+clean:
+	-del *.obj
+	-del *.lib
+	-del *.exe
+	-del zlib_*.bak
+	-del foo.gz
diff --git a/compat/zlib/nintendods/Makefile b/compat/zlib/nintendods/Makefile
new file mode 100644
index 0000000..21337d0
--- /dev/null
+++ b/compat/zlib/nintendods/Makefile
@@ -0,0 +1,126 @@
+#---------------------------------------------------------------------------------
+.SUFFIXES:
+#---------------------------------------------------------------------------------
+
+ifeq ($(strip $(DEVKITARM)),)
+$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
+endif
+
+include $(DEVKITARM)/ds_rules
+
+#---------------------------------------------------------------------------------
+# TARGET is the name of the output
+# BUILD is the directory where object files & intermediate files will be placed
+# SOURCES is a list of directories containing source code
+# DATA is a list of directories containing data files
+# INCLUDES is a list of directories containing header files
+#---------------------------------------------------------------------------------
+TARGET		:=	$(shell basename $(CURDIR))
+BUILD		:=	build
+SOURCES		:=	../../
+DATA		:=	data
+INCLUDES	:=	include
+
+#---------------------------------------------------------------------------------
+# options for code generation
+#---------------------------------------------------------------------------------
+ARCH	:=	-mthumb -mthumb-interwork
+
+CFLAGS	:=	-Wall -O2\
+		-march=armv5te -mtune=arm946e-s \
+		-fomit-frame-pointer -ffast-math \
+		$(ARCH)
+
+CFLAGS	+=	$(INCLUDE) -DARM9
+CXXFLAGS	:= $(CFLAGS) -fno-rtti -fno-exceptions
+
+ASFLAGS	:=	$(ARCH) -march=armv5te -mtune=arm946e-s
+LDFLAGS	=	-specs=ds_arm9.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)
+
+#---------------------------------------------------------------------------------
+# list of directories containing libraries, this must be the top level containing
+# include and lib
+#---------------------------------------------------------------------------------
+LIBDIRS	:=	$(LIBNDS)
+
+#---------------------------------------------------------------------------------
+# no real need to edit anything past this point unless you need to add additional
+# rules for different file extensions
+#---------------------------------------------------------------------------------
+ifneq ($(BUILD),$(notdir $(CURDIR)))
+#---------------------------------------------------------------------------------
+
+export OUTPUT	:=	$(CURDIR)/lib/libz.a
+
+export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
+			$(foreach dir,$(DATA),$(CURDIR)/$(dir))
+
+export DEPSDIR	:=	$(CURDIR)/$(BUILD)
+
+CFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
+CPPFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
+SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
+BINFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
+
+#---------------------------------------------------------------------------------
+# use CXX for linking C++ projects, CC for standard C
+#---------------------------------------------------------------------------------
+ifeq ($(strip $(CPPFILES)),)
+#---------------------------------------------------------------------------------
+	export LD	:=	$(CC)
+#---------------------------------------------------------------------------------
+else
+#---------------------------------------------------------------------------------
+	export LD	:=	$(CXX)
+#---------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------
+
+export OFILES	:=	$(addsuffix .o,$(BINFILES)) \
+			$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
+
+export INCLUDE	:=	$(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
+			$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
+			-I$(CURDIR)/$(BUILD)
+
+.PHONY: $(BUILD) clean all
+
+#---------------------------------------------------------------------------------
+all: $(BUILD)
+	@[ -d $@ ] || mkdir -p include
+	@cp ../../*.h include
+
+lib:
+	@[ -d $@ ] || mkdir -p $@
+	
+$(BUILD): lib
+	@[ -d $@ ] || mkdir -p $@
+	@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
+
+#---------------------------------------------------------------------------------
+clean:
+	@echo clean ...
+	@rm -fr $(BUILD) lib
+
+#---------------------------------------------------------------------------------
+else
+
+DEPENDS	:=	$(OFILES:.o=.d)
+
+#---------------------------------------------------------------------------------
+# main targets
+#---------------------------------------------------------------------------------
+$(OUTPUT)	:	$(OFILES)
+
+#---------------------------------------------------------------------------------
+%.bin.o	:	%.bin
+#---------------------------------------------------------------------------------
+	@echo $(notdir $<)
+	@$(bin2o)
+
+
+-include $(DEPENDS)
+
+#---------------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------------
diff --git a/compat/zlib/nintendods/README b/compat/zlib/nintendods/README
new file mode 100644
index 0000000..ba7a37d
--- /dev/null
+++ b/compat/zlib/nintendods/README
@@ -0,0 +1,5 @@
+This Makefile requires devkitARM (http://www.devkitpro.org/category/devkitarm/) and works inside "contrib/nds". It is based on a devkitARM template.
+
+Eduardo Costa <eduardo.m.costa@gmail.com>
+January 3, 2009
+
diff --git a/compat/zlib/old/Makefile.emx b/compat/zlib/old/Makefile.emx
new file mode 100644
index 0000000..612b037
--- /dev/null
+++ b/compat/zlib/old/Makefile.emx
@@ -0,0 +1,69 @@
+# Makefile for zlib.  Modified for emx/rsxnt by Chr. Spieler, 6/16/98.
+# Copyright (C) 1995-1998 Jean-loup Gailly.
+# For conditions of distribution and use, see copyright notice in zlib.h
+
+# To compile, or to compile and test, type:
+#
+#   make -fmakefile.emx;  make test -fmakefile.emx
+#
+
+CC=gcc -Zwin32
+
+#CFLAGS=-MMD -O
+#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
+#CFLAGS=-MMD -g -DZLIB_DEBUG
+CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
+             -Wstrict-prototypes -Wmissing-prototypes
+
+# If cp.exe is available, replace "copy /Y" with "cp -fp" .
+CP=copy /Y
+# If gnu install.exe is available, replace $(CP) with ginstall.
+INSTALL=$(CP)
+# The default value of RM is "rm -f."  If "rm.exe" is found, comment out:
+RM=del
+LDLIBS=-L. -lzlib
+LD=$(CC) -s -o
+LDSHARED=$(CC)
+
+INCL=zlib.h zconf.h
+LIBS=zlib.a
+
+AR=ar rcs
+
+prefix=/usr/local
+exec_prefix = $(prefix)
+
+OBJS = adler32.o compress.o crc32.o deflate.o gzclose.o gzlib.o gzread.o \
+       gzwrite.o infback.o inffast.o inflate.o inftrees.o trees.o uncompr.o zutil.o
+
+TEST_OBJS = example.o minigzip.o
+
+all: example.exe minigzip.exe
+
+test: all
+	./example
+	echo hello world | .\minigzip | .\minigzip -d
+
+%.o : %.c
+	$(CC) $(CFLAGS) -c $< -o $@
+
+zlib.a: $(OBJS)
+	$(AR) $@ $(OBJS)
+
+%.exe : %.o $(LIBS)
+	$(LD) $@ $< $(LDLIBS)
+
+
+.PHONY : clean
+
+clean:
+	$(RM) *.d
+	$(RM) *.o
+	$(RM) *.exe
+	$(RM) zlib.a
+	$(RM) foo.gz
+
+DEPS := $(wildcard *.d)
+ifneq ($(DEPS),)
+include $(DEPS)
+endif
diff --git a/compat/zlib/old/Makefile.riscos b/compat/zlib/old/Makefile.riscos
new file mode 100644
index 0000000..57e29d3
--- /dev/null
+++ b/compat/zlib/old/Makefile.riscos
@@ -0,0 +1,151 @@
+# Project:   zlib_1_03
+# Patched for zlib 1.1.2 rw@shadow.org.uk 19980430
+# test works out-of-the-box, installs `somewhere' on demand
+
+# Toolflags:
+CCflags = -c -depend !Depend -IC: -g -throwback  -DRISCOS  -fah
+C++flags = -c -depend !Depend -IC: -throwback
+Linkflags = -aif -c++ -o $@
+ObjAsmflags = -throwback -NoCache -depend !Depend
+CMHGflags =
+LibFileflags = -c -l -o $@
+Squeezeflags = -o $@
+
+# change the line below to where _you_ want the library installed.
+libdest = lib:zlib
+
+# Final targets:
+@.lib:   @.o.adler32 @.o.compress @.o.crc32 @.o.deflate @.o.gzio \
+        @.o.infblock @.o.infcodes @.o.inffast @.o.inflate @.o.inftrees @.o.infutil @.o.trees \
+        @.o.uncompr @.o.zutil
+        LibFile $(LibFileflags) @.o.adler32 @.o.compress @.o.crc32 @.o.deflate \
+        @.o.gzio @.o.infblock @.o.infcodes @.o.inffast @.o.inflate @.o.inftrees @.o.infutil \
+        @.o.trees @.o.uncompr @.o.zutil
+test:   @.minigzip @.example @.lib
+	@copy @.lib @.libc  A~C~DF~L~N~P~Q~RS~TV
+	@echo running tests: hang on.
+	@/@.minigzip -f -9 libc
+	@/@.minigzip -d libc-gz
+	@/@.minigzip -f -1 libc
+	@/@.minigzip -d libc-gz
+	@/@.minigzip -h -9 libc
+	@/@.minigzip -d libc-gz
+	@/@.minigzip -h -1 libc
+	@/@.minigzip -d libc-gz
+	@/@.minigzip -9 libc
+	@/@.minigzip -d libc-gz
+	@/@.minigzip -1 libc
+	@/@.minigzip -d libc-gz
+	@diff @.lib @.libc
+	@echo that should have reported '@.lib and @.libc identical' if you have diff.
+	@/@.example @.fred @.fred
+	@echo that will have given lots of hello!'s.
+
+@.minigzip:   @.o.minigzip @.lib C:o.Stubs
+        Link $(Linkflags) @.o.minigzip @.lib C:o.Stubs
+@.example:   @.o.example @.lib C:o.Stubs
+        Link $(Linkflags) @.o.example @.lib C:o.Stubs
+
+install: @.lib
+	cdir $(libdest)
+	cdir $(libdest).h
+	@copy @.h.zlib $(libdest).h.zlib A~C~DF~L~N~P~Q~RS~TV
+	@copy @.h.zconf $(libdest).h.zconf A~C~DF~L~N~P~Q~RS~TV
+	@copy @.lib $(libdest).lib  A~C~DF~L~N~P~Q~RS~TV
+	@echo okay, installed zlib in $(libdest)
+
+clean:; remove @.minigzip
+	remove @.example
+	remove @.libc
+	-wipe @.o.* F~r~cV
+	remove @.fred
+
+# User-editable dependencies:
+.c.o:
+        cc $(ccflags) -o $@ $<
+
+# Static dependencies:
+
+# Dynamic dependencies:
+o.example:	c.example
+o.example:	h.zlib
+o.example:	h.zconf
+o.minigzip:	c.minigzip
+o.minigzip:	h.zlib
+o.minigzip:	h.zconf
+o.adler32:	c.adler32
+o.adler32:	h.zlib
+o.adler32:	h.zconf
+o.compress:	c.compress
+o.compress:	h.zlib
+o.compress:	h.zconf
+o.crc32:	c.crc32
+o.crc32:	h.zlib
+o.crc32:	h.zconf
+o.deflate:	c.deflate
+o.deflate:	h.deflate
+o.deflate:	h.zutil
+o.deflate:	h.zlib
+o.deflate:	h.zconf
+o.gzio:	c.gzio
+o.gzio:	h.zutil
+o.gzio:	h.zlib
+o.gzio:	h.zconf
+o.infblock:	c.infblock
+o.infblock:	h.zutil
+o.infblock:	h.zlib
+o.infblock:	h.zconf
+o.infblock:	h.infblock
+o.infblock:	h.inftrees
+o.infblock:	h.infcodes
+o.infblock:	h.infutil
+o.infcodes:	c.infcodes
+o.infcodes:	h.zutil
+o.infcodes:	h.zlib
+o.infcodes:	h.zconf
+o.infcodes:	h.inftrees
+o.infcodes:	h.infblock
+o.infcodes:	h.infcodes
+o.infcodes:	h.infutil
+o.infcodes:	h.inffast
+o.inffast:	c.inffast
+o.inffast:	h.zutil
+o.inffast:	h.zlib
+o.inffast:	h.zconf
+o.inffast:	h.inftrees
+o.inffast:	h.infblock
+o.inffast:	h.infcodes
+o.inffast:	h.infutil
+o.inffast:	h.inffast
+o.inflate:	c.inflate
+o.inflate:	h.zutil
+o.inflate:	h.zlib
+o.inflate:	h.zconf
+o.inflate:	h.infblock
+o.inftrees:	c.inftrees
+o.inftrees:	h.zutil
+o.inftrees:	h.zlib
+o.inftrees:	h.zconf
+o.inftrees:	h.inftrees
+o.inftrees:	h.inffixed
+o.infutil:	c.infutil
+o.infutil:	h.zutil
+o.infutil:	h.zlib
+o.infutil:	h.zconf
+o.infutil:	h.infblock
+o.infutil:	h.inftrees
+o.infutil:	h.infcodes
+o.infutil:	h.infutil
+o.trees:	c.trees
+o.trees:	h.deflate
+o.trees:	h.zutil
+o.trees:	h.zlib
+o.trees:	h.zconf
+o.trees:	h.trees
+o.uncompr:	c.uncompr
+o.uncompr:	h.zlib
+o.uncompr:	h.zconf
+o.zutil:	c.zutil
+o.zutil:	h.zutil
+o.zutil:	h.zlib
+o.zutil:	h.zconf
diff --git a/compat/zlib/old/README b/compat/zlib/old/README
new file mode 100644
index 0000000..800bf07
--- /dev/null
+++ b/compat/zlib/old/README
@@ -0,0 +1,3 @@
+This directory contains files that have not been updated for zlib 1.2.x
+
+(Volunteers are encouraged to help clean this up.  Thanks.)
diff --git a/compat/zlib/old/descrip.mms b/compat/zlib/old/descrip.mms
new file mode 100644
index 0000000..7066da5
--- /dev/null
+++ b/compat/zlib/old/descrip.mms
@@ -0,0 +1,48 @@
+# descrip.mms: MMS description file for building zlib on VMS
+# written by Martin P.J. Zinser <m.zinser@gsi.de>
+
+cc_defs =
+c_deb =
+
+.ifdef __DECC__
+pref = /prefix=all
+.endif
+
+OBJS = adler32.obj, compress.obj, crc32.obj, gzio.obj, uncompr.obj,\
+       deflate.obj, trees.obj, zutil.obj, inflate.obj, infblock.obj,\
+       inftrees.obj, infcodes.obj, infutil.obj, inffast.obj
+
+CFLAGS= $(C_DEB) $(CC_DEFS) $(PREF)
+
+all : example.exe minigzip.exe
+        @ write sys$output " Example applications available"
+libz.olb : libz.olb($(OBJS))
+	@ write sys$output " libz available"
+
+example.exe : example.obj libz.olb
+              link example,libz.olb/lib
+
+minigzip.exe : minigzip.obj libz.olb
+              link minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib
+
+clean :
+	delete *.obj;*,libz.olb;*
+
+
+# Other dependencies.
+adler32.obj : zutil.h zlib.h zconf.h
+compress.obj : zlib.h zconf.h
+crc32.obj : zutil.h zlib.h zconf.h
+deflate.obj : deflate.h zutil.h zlib.h zconf.h
+example.obj : zlib.h zconf.h
+gzio.obj : zutil.h zlib.h zconf.h
+infblock.obj : zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h
+infcodes.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h infcodes.h inffast.h
+inffast.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h
+inflate.obj : zutil.h zlib.h zconf.h infblock.h
+inftrees.obj : zutil.h zlib.h zconf.h inftrees.h
+infutil.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h
+minigzip.obj : zlib.h zconf.h
+trees.obj : deflate.h zutil.h zlib.h zconf.h
+uncompr.obj : zlib.h zconf.h
+zutil.obj : zutil.h zlib.h zconf.h
diff --git a/compat/zlib/old/os2/Makefile.os2 b/compat/zlib/old/os2/Makefile.os2
new file mode 100644
index 0000000..bb426c0
--- /dev/null
+++ b/compat/zlib/old/os2/Makefile.os2
@@ -0,0 +1,136 @@
+# Makefile for zlib under OS/2 using GCC (PGCC)
+# For conditions of distribution and use, see copyright notice in zlib.h
+
+# To compile and test, type:
+#   cp Makefile.os2 ..
+#   cd ..
+#   make -f Makefile.os2 test
+
+# This makefile will build a static library z.lib, a shared library
+# z.dll and a import library zdll.lib. You can use either z.lib or
+# zdll.lib by specifying either -lz or -lzdll on gcc's command line
+
+CC=gcc -Zomf -s
+
+CFLAGS=-O6 -Wall
+#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
+#CFLAGS=-g -DZLIB_DEBUG
+#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
+#           -Wstrict-prototypes -Wmissing-prototypes
+
+#################### BUG WARNING: #####################
+## infcodes.c hits a bug in pgcc-1.0, so you have to use either
+## -O# where # <= 4 or one of (-fno-ommit-frame-pointer or -fno-force-mem)
+## This bug is reportedly fixed in pgcc >1.0, but this was not tested
+CFLAGS+=-fno-force-mem
+
+LDFLAGS=-s -L. -lzdll -Zcrtdll
+LDSHARED=$(CC) -s -Zomf -Zdll -Zcrtdll
+
+VER=1.1.0
+ZLIB=z.lib
+SHAREDLIB=z.dll
+SHAREDLIBIMP=zdll.lib
+LIBS=$(ZLIB) $(SHAREDLIB) $(SHAREDLIBIMP)
+
+AR=emxomfar cr
+IMPLIB=emximp
+RANLIB=echo
+TAR=tar
+SHELL=bash
+
+prefix=/usr/local
+exec_prefix = $(prefix)
+
+OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
+       zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o
+
+TEST_OBJS = example.o minigzip.o
+
+DISTFILES = README INDEX ChangeLog configure Make*[a-z0-9] *.[ch] descrip.mms \
+  algorithm.txt zlib.3 msdos/Make*[a-z0-9] msdos/zlib.def msdos/zlib.rc \
+  nt/Makefile.nt nt/zlib.dnt  contrib/README.contrib contrib/*.txt \
+  contrib/asm386/*.asm contrib/asm386/*.c \
+  contrib/asm386/*.bat contrib/asm386/zlibvc.d?? contrib/iostream/*.cpp \
+  contrib/iostream/*.h  contrib/iostream2/*.h contrib/iostream2/*.cpp \
+  contrib/untgz/Makefile contrib/untgz/*.c contrib/untgz/*.w32
+
+all: example.exe minigzip.exe
+
+test: all
+	@LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \
+	echo hello world | ./minigzip | ./minigzip -d || \
+	  echo '		*** minigzip test FAILED ***' ; \
+	if ./example; then \
+	  echo '		*** zlib test OK ***'; \
+	else \
+	  echo '		*** zlib test FAILED ***'; \
+	fi
+
+$(ZLIB): $(OBJS)
+	$(AR) $@ $(OBJS)
+	-@ ($(RANLIB) $@ || true) >/dev/null 2>&1
+
+$(SHAREDLIB): $(OBJS) os2/z.def
+	$(LDSHARED) -o $@ $^
+
+$(SHAREDLIBIMP): os2/z.def
+	$(IMPLIB) -o $@ $^
+
+example.exe: example.o $(LIBS)
+	$(CC) $(CFLAGS) -o $@ example.o $(LDFLAGS)
+
+minigzip.exe: minigzip.o $(LIBS)
+	$(CC) $(CFLAGS) -o $@ minigzip.o $(LDFLAGS)
+
+clean:
+	rm -f *.o *~ example minigzip libz.a libz.so* foo.gz
+
+distclean:	clean
+
+zip:
+	mv Makefile Makefile~; cp -p Makefile.in Makefile
+	rm -f test.c ztest*.c
+	v=`sed -n -e 's/\.//g' -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`;\
+	zip -ul9 zlib$$v $(DISTFILES)
+	mv Makefile~ Makefile
+
+dist:
+	mv Makefile Makefile~; cp -p Makefile.in Makefile
+	rm -f test.c ztest*.c
+	d=zlib-`sed -n '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`;\
+	rm -f $$d.tar.gz; \
+	if test ! -d ../$$d; then rm -f ../$$d; ln -s `pwd` ../$$d; fi; \
+	files=""; \
+	for f in $(DISTFILES); do files="$$files $$d/$$f"; done; \
+	cd ..; \
+	GZIP=-9 $(TAR) chofz $$d/$$d.tar.gz $$files; \
+	if test ! -d $$d; then rm -f $$d; fi
+	mv Makefile~ Makefile
+
+tags:
+	etags *.[ch]
+
+depend:
+	makedepend -- $(CFLAGS) -- *.[ch]
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+adler32.o: zlib.h zconf.h
+compress.o: zlib.h zconf.h
+crc32.o: zlib.h zconf.h
+deflate.o: deflate.h zutil.h zlib.h zconf.h
+example.o: zlib.h zconf.h
+gzio.o: zutil.h zlib.h zconf.h
+infblock.o: infblock.h inftrees.h infcodes.h infutil.h zutil.h zlib.h zconf.h
+infcodes.o: zutil.h zlib.h zconf.h
+infcodes.o: inftrees.h infblock.h infcodes.h infutil.h inffast.h
+inffast.o: zutil.h zlib.h zconf.h inftrees.h
+inffast.o: infblock.h infcodes.h infutil.h inffast.h
+inflate.o: zutil.h zlib.h zconf.h infblock.h
+inftrees.o: zutil.h zlib.h zconf.h inftrees.h
+infutil.o: zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h
+minigzip.o: zlib.h zconf.h
+trees.o: deflate.h zutil.h zlib.h zconf.h trees.h
+uncompr.o: zlib.h zconf.h
+zutil.o: zutil.h zlib.h zconf.h
diff --git a/compat/zlib/old/os2/zlib.def b/compat/zlib/old/os2/zlib.def
new file mode 100644
index 0000000..4c753f1
--- /dev/null
+++ b/compat/zlib/old/os2/zlib.def
@@ -0,0 +1,51 @@
+;
+; Slightly modified version of ../nt/zlib.dnt :-)
+;
+
+LIBRARY		Z
+DESCRIPTION	"Zlib compression library for OS/2"
+CODE		PRELOAD MOVEABLE DISCARDABLE
+DATA		PRELOAD MOVEABLE MULTIPLE
+
+EXPORTS
+    adler32
+    compress
+    crc32
+    deflate
+    deflateCopy
+    deflateEnd
+    deflateInit2_
+    deflateInit_
+    deflateParams
+    deflateReset
+    deflateSetDictionary
+    gzclose
+    gzdopen
+    gzerror
+    gzflush
+    gzopen
+    gzread
+    gzwrite
+    inflate
+    inflateEnd
+    inflateInit2_
+    inflateInit_
+    inflateReset
+    inflateSetDictionary
+    inflateSync
+    uncompress
+    zlibVersion
+    gzprintf
+    gzputc
+    gzgetc
+    gzseek
+    gzrewind
+    gztell
+    gzeof
+    gzsetparams
+    zError
+    inflateSyncPoint
+    get_crc_table
+    compress2
+    gzputs
+    gzgets
diff --git a/compat/zlib/old/visual-basic.txt b/compat/zlib/old/visual-basic.txt
new file mode 100644
index 0000000..3c8d2a4
--- /dev/null
+++ b/compat/zlib/old/visual-basic.txt
@@ -0,0 +1,160 @@
+See below some functions declarations for Visual Basic.
+
+Frequently Asked Question:
+
+Q: Each time I use the compress function I get the -5 error (not enough
+   room in the output buffer).
+
+A: Make sure that the length of the compressed buffer is passed by
+   reference ("as any"), not by value ("as long"). Also check that
+   before the call of compress this length is equal to the total size of
+   the compressed buffer and not zero.
+
+
+From: "Jon Caruana" <jon-net@usa.net>
+Subject: Re: How to port zlib declares to vb?
+Date: Mon, 28 Oct 1996 18:33:03 -0600
+
+Got the answer! (I haven't had time to check this but it's what I got, and
+looks correct):
+
+He has the following routines working:
+        compress
+        uncompress
+        gzopen
+        gzwrite
+        gzread
+        gzclose
+
+Declares follow: (Quoted from Carlos Rios <c_rios@sonda.cl>, in Vb4 form)
+
+#If Win16 Then   'Use Win16 calls.
+Declare Function compress Lib "ZLIB.DLL" (ByVal compr As
+        String, comprLen As Any, ByVal buf As String, ByVal buflen
+        As Long) As Integer
+Declare Function uncompress Lib "ZLIB.DLL" (ByVal uncompr
+        As String, uncomprLen As Any, ByVal compr As String, ByVal
+        lcompr As Long) As Integer
+Declare Function gzopen Lib "ZLIB.DLL" (ByVal filePath As
+        String, ByVal mode As String) As Long
+Declare Function gzread Lib "ZLIB.DLL" (ByVal file As
+        Long, ByVal uncompr As String, ByVal uncomprLen As Integer)
+        As Integer
+Declare Function gzwrite Lib "ZLIB.DLL" (ByVal file As
+        Long, ByVal uncompr As String, ByVal uncomprLen As Integer)
+        As Integer
+Declare Function gzclose Lib "ZLIB.DLL" (ByVal file As
+        Long) As Integer
+#Else
+Declare Function compress Lib "ZLIB32.DLL"
+        (ByVal compr As String, comprLen As Any, ByVal buf As
+        String, ByVal buflen As Long) As Integer
+Declare Function uncompress Lib "ZLIB32.DLL"
+        (ByVal uncompr As String, uncomprLen As Any, ByVal compr As
+        String, ByVal lcompr As Long) As Long
+Declare Function gzopen Lib "ZLIB32.DLL"
+        (ByVal file As String, ByVal mode As String) As Long
+Declare Function gzread Lib "ZLIB32.DLL"
+        (ByVal file As Long, ByVal uncompr As String, ByVal
+        uncomprLen As Long) As Long
+Declare Function gzwrite Lib "ZLIB32.DLL"
+        (ByVal file As Long, ByVal uncompr As String, ByVal
+        uncomprLen As Long) As Long
+Declare Function gzclose Lib "ZLIB32.DLL"
+        (ByVal file As Long) As Long
+#End If
+
+-Jon Caruana
+jon-net@usa.net
+Microsoft Sitebuilder Network Level 1 Member - HTML Writer's Guild Member
+
+
+Here is another example from Michael <michael_borgsys@hotmail.com> that he
+says conforms to the VB guidelines, and that solves the problem of not
+knowing the uncompressed size by storing it at the end of the file:
+
+'Calling the functions:
+'bracket meaning: <parameter> [optional] {Range of possible values}
+'Call subCompressFile(<path with filename to compress> [, <path with
+filename to write to>, [level of compression {1..9}]])
+'Call subUncompressFile(<path with filename to compress>)
+
+Option Explicit
+Private lngpvtPcnSml As Long 'Stores value for 'lngPercentSmaller'
+Private Const SUCCESS As Long = 0
+Private Const strFilExt As String = ".cpr"
+Private Declare Function lngfncCpr Lib "zlib.dll" Alias "compress2" (ByRef
+dest As Any, ByRef destLen As Any, ByRef src As Any, ByVal srcLen As Long,
+ByVal level As Integer) As Long
+Private Declare Function lngfncUcp Lib "zlib.dll" Alias "uncompress" (ByRef
+dest As Any, ByRef destLen As Any, ByRef src As Any, ByVal srcLen As Long)
+As Long
+
+Public Sub subCompressFile(ByVal strargOriFilPth As String, Optional ByVal
+strargCprFilPth As String, Optional ByVal intLvl As Integer = 9)
+    Dim strCprPth As String
+    Dim lngOriSiz As Long
+    Dim lngCprSiz As Long
+    Dim bytaryOri() As Byte
+    Dim bytaryCpr() As Byte
+    lngOriSiz = FileLen(strargOriFilPth)
+    ReDim bytaryOri(lngOriSiz - 1)
+    Open strargOriFilPth For Binary Access Read As #1
+        Get #1, , bytaryOri()
+    Close #1
+    strCprPth = IIf(strargCprFilPth = "", strargOriFilPth, strargCprFilPth)
+'Select file path and name
+    strCprPth = strCprPth & IIf(Right(strCprPth, Len(strFilExt)) =
+strFilExt, "", strFilExt) 'Add file extension if not exists
+    lngCprSiz = (lngOriSiz * 1.01) + 12 'Compression needs temporary a bit
+more space then original file size
+    ReDim bytaryCpr(lngCprSiz - 1)
+    If lngfncCpr(bytaryCpr(0), lngCprSiz, bytaryOri(0), lngOriSiz, intLvl) =
+SUCCESS Then
+        lngpvtPcnSml = (1# - (lngCprSiz / lngOriSiz)) * 100
+        ReDim Preserve bytaryCpr(lngCprSiz - 1)
+        Open strCprPth For Binary Access Write As #1
+            Put #1, , bytaryCpr()
+            Put #1, , lngOriSiz 'Add the original size value to the end
+(last 4 bytes)
+        Close #1
+    Else
+        MsgBox "Compression error"
+    End If
+    Erase bytaryCpr
+    Erase bytaryOri
+End Sub
+
+Public Sub subUncompressFile(ByVal strargFilPth As String)
+    Dim bytaryCpr() As Byte
+    Dim bytaryOri() As Byte
+    Dim lngOriSiz As Long
+    Dim lngCprSiz As Long
+    Dim strOriPth As String
+    lngCprSiz = FileLen(strargFilPth)
+    ReDim bytaryCpr(lngCprSiz - 1)
+    Open strargFilPth For Binary Access Read As #1
+        Get #1, , bytaryCpr()
+    Close #1
+    'Read the original file size value:
+    lngOriSiz = bytaryCpr(lngCprSiz - 1) * (2 ^ 24) _
+              + bytaryCpr(lngCprSiz - 2) * (2 ^ 16) _
+              + bytaryCpr(lngCprSiz - 3) * (2 ^ 8) _
+              + bytaryCpr(lngCprSiz - 4)
+    ReDim Preserve bytaryCpr(lngCprSiz - 5) 'Cut of the original size value
+    ReDim bytaryOri(lngOriSiz - 1)
+    If lngfncUcp(bytaryOri(0), lngOriSiz, bytaryCpr(0), lngCprSiz) = SUCCESS
+Then
+        strOriPth = Left(strargFilPth, Len(strargFilPth) - Len(strFilExt))
+        Open strOriPth For Binary Access Write As #1
+            Put #1, , bytaryOri()
+        Close #1
+    Else
+        MsgBox "Uncompression error"
+    End If
+    Erase bytaryCpr
+    Erase bytaryOri
+End Sub
+Public Property Get lngPercentSmaller() As Long
+    lngPercentSmaller = lngpvtPcnSml
+End Property
diff --git a/compat/zlib/os400/README400 b/compat/zlib/os400/README400
new file mode 100644
index 0000000..30ed5a1
--- /dev/null
+++ b/compat/zlib/os400/README400
@@ -0,0 +1,48 @@
+        ZLIB version 1.3.1 for OS/400 installation instructions
+
+1) Download and unpack the zlib tarball to some IFS directory.
+   (i.e.: /path/to/the/zlib/ifs/source/directory)
+
+   If the installed IFS command supports gzip format, this is straightforward,
+else you have to unpack first to some directory on a system supporting it,
+then move the whole directory to the IFS via the network (via SMB or FTP).
+
+2) Edit the configuration parameters in the compilation script.
+
+        EDTF STMF('/path/to/the/zlib/ifs/source/directory/os400/make.sh')
+
+Tune the parameters according to your needs if not matching the defaults.
+Save the file and exit after edition.
+
+3) Enter qshell, then work in the zlib OS/400 specific directory.
+
+        QSH
+        cd /path/to/the/zlib/ifs/source/directory/os400
+
+4) Compile and install
+
+        sh make.sh
+
+The script will:
+- create the libraries, objects and IFS directories for the zlib environment,
+- compile all modules,
+- create a service program,
+- create a static and a dynamic binding directory,
+- install header files for C/C++ and for ILE/RPG, both for compilation in
+  DB2 and IFS environments.
+
+That's all. 
+
+
+Notes:  For OS/400 ILE RPG programmers, a /copy member defining the ZLIB
+                API prototypes for ILE RPG can be found in ZLIB/H(ZLIB.INC).
+                In the ILE environment, the same definitions are available from
+                file zlib.inc located in the same IFS include directory as the
+                C/C++ header files.
+                Please read comments in this member for more information.
+
+        Remember that most foreign textual data are ASCII coded: this
+                implementation does not handle conversion from/to ASCII, so
+                text data code conversions must be done explicitly.
+
+        Mainly for the reason above, always open zipped files in binary mode.
diff --git a/compat/zlib/os400/bndsrc b/compat/zlib/os400/bndsrc
new file mode 100644
index 0000000..9f92bb1
--- /dev/null
+++ b/compat/zlib/os400/bndsrc
@@ -0,0 +1,127 @@
+STRPGMEXP PGMLVL(*CURRENT) SIGNATURE('ZLIB')
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.1.3 entry points.                                    */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+  EXPORT SYMBOL("adler32")
+  EXPORT SYMBOL("compress")
+  EXPORT SYMBOL("compress2")
+  EXPORT SYMBOL("crc32")
+  EXPORT SYMBOL("get_crc_table")
+  EXPORT SYMBOL("deflate")
+  EXPORT SYMBOL("deflateEnd")
+  EXPORT SYMBOL("deflateSetDictionary")
+  EXPORT SYMBOL("deflateCopy")
+  EXPORT SYMBOL("deflateReset")
+  EXPORT SYMBOL("deflateParams")
+  EXPORT SYMBOL("deflatePrime")
+  EXPORT SYMBOL("deflateInit_")
+  EXPORT SYMBOL("deflateInit2_")
+  EXPORT SYMBOL("gzopen")
+  EXPORT SYMBOL("gzdopen")
+  EXPORT SYMBOL("gzsetparams")
+  EXPORT SYMBOL("gzread")
+  EXPORT SYMBOL("gzwrite")
+  EXPORT SYMBOL("gzprintf")
+  EXPORT SYMBOL("gzputs")
+  EXPORT SYMBOL("gzgets")
+  EXPORT SYMBOL("gzputc")
+  EXPORT SYMBOL("gzgetc")
+  EXPORT SYMBOL("gzflush")
+  EXPORT SYMBOL("gzseek")
+  EXPORT SYMBOL("gzrewind")
+  EXPORT SYMBOL("gztell")
+  EXPORT SYMBOL("gzeof")
+  EXPORT SYMBOL("gzclose")
+  EXPORT SYMBOL("gzerror")
+  EXPORT SYMBOL("inflate")
+  EXPORT SYMBOL("inflateEnd")
+  EXPORT SYMBOL("inflateSetDictionary")
+  EXPORT SYMBOL("inflateSync")
+  EXPORT SYMBOL("inflateReset")
+  EXPORT SYMBOL("inflateInit_")
+  EXPORT SYMBOL("inflateInit2_")
+  EXPORT SYMBOL("inflateSyncPoint")
+  EXPORT SYMBOL("uncompress")
+  EXPORT SYMBOL("zlibVersion")
+  EXPORT SYMBOL("zError")
+  EXPORT SYMBOL("z_errmsg")
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.2.1 additional entry points.                         */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+  EXPORT SYMBOL("compressBound")
+  EXPORT SYMBOL("deflateBound")
+  EXPORT SYMBOL("deflatePending")
+  EXPORT SYMBOL("gzungetc")
+  EXPORT SYMBOL("gzclearerr")
+  EXPORT SYMBOL("inflateBack")
+  EXPORT SYMBOL("inflateBackEnd")
+  EXPORT SYMBOL("inflateBackInit_")
+  EXPORT SYMBOL("inflateCopy")
+  EXPORT SYMBOL("zlibCompileFlags")
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.2.4 additional entry points.                         */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+  EXPORT SYMBOL("adler32_combine")
+  EXPORT SYMBOL("adler32_combine64")
+  EXPORT SYMBOL("crc32_combine")
+  EXPORT SYMBOL("crc32_combine64")
+  EXPORT SYMBOL("deflateSetHeader")
+  EXPORT SYMBOL("deflateTune")
+  EXPORT SYMBOL("gzbuffer")
+  EXPORT SYMBOL("gzclose_r")
+  EXPORT SYMBOL("gzclose_w")
+  EXPORT SYMBOL("gzdirect")
+  EXPORT SYMBOL("gzoffset")
+  EXPORT SYMBOL("gzoffset64")
+  EXPORT SYMBOL("gzopen64")
+  EXPORT SYMBOL("gzseek64")
+  EXPORT SYMBOL("gztell64")
+  EXPORT SYMBOL("inflateGetHeader")
+  EXPORT SYMBOL("inflateMark")
+  EXPORT SYMBOL("inflatePrime")
+  EXPORT SYMBOL("inflateReset2")
+  EXPORT SYMBOL("inflateUndermine")
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.2.6 additional entry points.                         */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+  EXPORT SYMBOL("deflateResetKeep")
+  EXPORT SYMBOL("gzgetc_")
+  EXPORT SYMBOL("inflateResetKeep")
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.2.8 additional entry points.                         */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+  EXPORT SYMBOL("gzvprintf")
+  EXPORT SYMBOL("inflateGetDictionary")
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.2.9 additional entry points.                         */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+  EXPORT SYMBOL("adler32_z")
+  EXPORT SYMBOL("crc32_z")
+  EXPORT SYMBOL("deflateGetDictionary")
+  EXPORT SYMBOL("gzfread")
+  EXPORT SYMBOL("gzfwrite")
+  EXPORT SYMBOL("inflateCodesUsed")
+  EXPORT SYMBOL("inflateValidate")
+  EXPORT SYMBOL("uncompress2")
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.2.12 additional entry points.                        */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+  EXPORT SYMBOL("crc32_combine_gen64")
+  EXPORT SYMBOL("crc32_combine_gen")
+  EXPORT SYMBOL("crc32_combine_op")
+
+ENDPGMEXP
diff --git a/compat/zlib/os400/make.sh b/compat/zlib/os400/make.sh
new file mode 100644
index 0000000..19eec11
--- /dev/null
+++ b/compat/zlib/os400/make.sh
@@ -0,0 +1,366 @@
+#!/bin/sh
+#
+#       ZLIB compilation script for the OS/400.
+#
+#
+#       This is a shell script since make is not a standard component of OS/400.
+
+
+################################################################################
+#
+#                       Tunable configuration parameters.
+#
+################################################################################
+
+TARGETLIB='ZLIB'                # Target OS/400 program library
+STATBNDDIR='ZLIB_A'             # Static binding directory.
+DYNBNDDIR='ZLIB'                # Dynamic binding directory.
+SRVPGM="ZLIB"                   # Service program.
+IFSDIR='/zlib'                  # IFS support base directory.
+TGTCCSID='500'                  # Target CCSID of objects
+DEBUG='*NONE'                   # Debug level
+OPTIMIZE='40'                   # Optimisation level
+OUTPUT='*NONE'                  # Compilation output option.
+TGTRLS='V6R1M0'                 # Target OS release
+
+export TARGETLIB STATBNDDIR DYNBNDDIR SRVPGM IFSDIR
+export TGTCCSID DEBUG OPTIMIZE OUTPUT TGTRLS
+
+
+################################################################################
+#
+#                       OS/400 specific definitions.
+#
+################################################################################
+
+LIBIFSNAME="/QSYS.LIB/${TARGETLIB}.LIB"
+
+
+################################################################################
+#
+#                               Procedures.
+#
+################################################################################
+
+#       action_needed dest [src]
+#
+#       dest is an object to build
+#       if specified, src is an object on which dest depends.
+#
+#       exit 0 (succeeds) if some action has to be taken, else 1.
+
+action_needed()
+
+{
+        [ ! -e "${1}" ] && return 0
+        [ "${2}" ] || return 1
+        [ "${1}" -ot "${2}" ] && return 0
+        return 1
+}
+
+
+#       make_module module_name source_name [additional_definitions]
+#
+#       Compile source name into module if needed.
+#       As side effect, append the module name to variable MODULES.
+#       Set LINK to "YES" if the module has been compiled.
+
+make_module()
+
+{
+    MODULES="${MODULES} ${1}"
+    MODIFSNAME="${LIBIFSNAME}/${1}.MODULE"
+    CSRC="`basename \"${2}\"`"
+
+    if action_needed "${MODIFSNAME}" "${2}"
+    then    :
+    elif [ ! "`sed -e \"/<source name=\\\"${CSRC}\\\">/,/<\\\\/source>/!d\" \
+      -e '/<depend /!d'                                                 \
+      -e 's/.* name=\"\\([^\"]*\\)\".*/\\1/' < \"${TOPDIR}/treebuild.xml\" |
+        while read HDR
+        do      if action_needed \"${MODIFSNAME}\" \"${IFSDIR}/include/${HDR}\"
+                then    echo recompile
+                        break
+                fi
+        done`" ]
+    then    return 0
+    fi
+
+    CMD="CRTCMOD MODULE(${TARGETLIB}/${1}) SRCSTMF('${2}')"
+    CMD="${CMD} SYSIFCOPT(*IFS64IO) OPTION(*INCDIRFIRST)"
+    CMD="${CMD} LOCALETYPE(*LOCALE) FLAG(10)"
+    CMD="${CMD} INCDIR('${IFSDIR}/include' ${INCLUDES})"
+    CMD="${CMD} TGTCCSID(${TGTCCSID}) TGTRLS(${TGTRLS})"
+    CMD="${CMD} OUTPUT(${OUTPUT})"
+    CMD="${CMD} OPTIMIZE(${OPTIMIZE})"
+    CMD="${CMD} DBGVIEW(${DEBUG})"
+    system "${CMD}"
+    LINK=YES
+}
+
+
+#       Determine DB2 object name from IFS name.
+
+db2_name()
+
+{
+        basename "${1}"                                                 |
+        tr 'a-z-' 'A-Z_'                                                |
+        sed -e 's/\..*//'                                               \
+            -e 's/^\(.\).*\(.........\)$/\1\2/'
+}
+
+
+#       Force enumeration types to be the same size as integers.
+
+copy_hfile()
+
+{
+        sed -e '1i\
+#pragma enum(int)\
+' "${@}" -e '$a\
+#pragma enum(pop)\
+'
+}
+
+
+################################################################################
+#
+#                             Script initialization.
+#
+################################################################################
+
+SCRIPTDIR=`dirname "${0}"`
+
+case "${SCRIPTDIR}" in
+/*)     ;;
+*)      SCRIPTDIR="`pwd`/${SCRIPTDIR}"
+esac
+
+while true
+do      case "${SCRIPTDIR}" in
+        */.)    SCRIPTDIR="${SCRIPTDIR%/.}";;
+        *)      break;;
+        esac
+done
+
+#  The script directory is supposed to be in ${TOPDIR}/os400.
+
+TOPDIR=`dirname "${SCRIPTDIR}"`
+export SCRIPTDIR TOPDIR
+cd "${TOPDIR}"
+
+
+#  Extract the version from the master compilation XML file.
+
+VERSION=`sed -e '/^<package /!d'                                        \
+            -e 's/^.* version="\([0-9.]*\)".*$/\1/' -e 'q'              \
+            < treebuild.xml`
+export VERSION
+
+################################################################################
+
+
+#       Create the OS/400 library if it does not exist.
+
+if action_needed "${LIBIFSNAME}"
+then    CMD="CRTLIB LIB(${TARGETLIB}) TEXT('ZLIB: Data compression API')"
+        system "${CMD}"
+fi
+
+
+#       Create the DOCS source file if it does not exist.
+
+if action_needed "${LIBIFSNAME}/DOCS.FILE"
+then    CMD="CRTSRCPF FILE(${TARGETLIB}/DOCS) RCDLEN(112)"
+        CMD="${CMD} CCSID(${TGTCCSID}) TEXT('Documentation texts')"
+        system "${CMD}"
+fi
+
+#       Copy some documentation files if needed.
+
+for TEXT in "${TOPDIR}/ChangeLog" "${TOPDIR}/FAQ"                       \
+    "${TOPDIR}/README" "${SCRIPTDIR}/README400"
+do      MEMBER="${LIBIFSNAME}/DOCS.FILE/`db2_name \"${TEXT}\"`.MBR"
+
+        if action_needed "${MEMBER}" "${TEXT}"
+        then    CMD="CPY OBJ('${TEXT}') TOOBJ('${MEMBER}') TOCCSID(${TGTCCSID})"
+                CMD="${CMD} DTAFMT(*TEXT) REPLACE(*YES)"
+                system "${CMD}"
+        fi
+done
+
+
+#       Create the OS/400 source program file for the C header files.
+
+SRCPF="${LIBIFSNAME}/H.FILE"
+
+if action_needed "${SRCPF}"
+then    CMD="CRTSRCPF FILE(${TARGETLIB}/H) RCDLEN(112)"
+        CMD="${CMD} CCSID(${TGTCCSID}) TEXT('ZLIB: C/C++ header files')"
+        system "${CMD}"
+fi
+
+
+#       Create the IFS directory for the C header files.
+
+if action_needed "${IFSDIR}/include"
+then    mkdir -p "${IFSDIR}/include"
+fi
+
+#       Copy the header files to DB2 library. Link from IFS include directory.
+
+for HFILE in "${TOPDIR}/"*.h
+do      DEST="${SRCPF}/`db2_name \"${HFILE}\"`.MBR"
+
+        if action_needed "${DEST}" "${HFILE}"
+        then    copy_hfile < "${HFILE}" > tmphdrfile
+
+                #       Need to translate to target CCSID.
+
+                CMD="CPY OBJ('`pwd`/tmphdrfile') TOOBJ('${DEST}')"
+                CMD="${CMD} TOCCSID(${TGTCCSID}) DTAFMT(*TEXT) REPLACE(*YES)"
+                system "${CMD}"
+                # touch -r "${HFILE}" "${DEST}"
+                rm -f tmphdrfile
+        fi
+
+        IFSFILE="${IFSDIR}/include/`basename \"${HFILE}\"`"
+
+        if action_needed "${IFSFILE}" "${DEST}"
+        then    rm -f "${IFSFILE}"
+                ln -s "${DEST}" "${IFSFILE}"
+        fi
+done
+
+
+#       Install the ILE/RPG header file.
+
+
+HFILE="${SCRIPTDIR}/zlib.inc"
+DEST="${SRCPF}/ZLIB.INC.MBR"
+
+if action_needed "${DEST}" "${HFILE}"
+then    CMD="CPY OBJ('${HFILE}') TOOBJ('${DEST}')"
+        CMD="${CMD} TOCCSID(${TGTCCSID}) DTAFMT(*TEXT) REPLACE(*YES)"
+        system "${CMD}"
+        # touch -r "${HFILE}" "${DEST}"
+fi
+
+IFSFILE="${IFSDIR}/include/`basename \"${HFILE}\"`"
+
+if action_needed "${IFSFILE}" "${DEST}"
+then    rm -f "${IFSFILE}"
+        ln -s "${DEST}" "${IFSFILE}"
+fi
+
+
+#      Create and compile the identification source file.
+
+echo '#pragma comment(user, "ZLIB version '"${VERSION}"'")' > os400.c
+echo '#pragma comment(user, __DATE__)' >> os400.c
+echo '#pragma comment(user, __TIME__)' >> os400.c
+echo '#pragma comment(copyright, "Copyright (C) 1995-2017 Jean-Loup Gailly, Mark Adler. OS/400 version by P. Monnerat.")' >> os400.c
+make_module     OS400           os400.c
+LINK=                           # No need to rebuild service program yet.
+MODULES=
+
+
+#       Get source list.
+
+CSOURCES=`sed -e '/<source name="/!d'                                   \
+    -e 's/.* name="\([^"]*\)".*/\1/' < treebuild.xml`
+
+#       Compile the sources into modules.
+
+for SRC in ${CSOURCES}
+do      MODULE=`db2_name "${SRC}"`
+        make_module "${MODULE}" "${SRC}"
+done
+
+
+#       If needed, (re)create the static binding directory.
+
+if action_needed "${LIBIFSNAME}/${STATBNDDIR}.BNDDIR"
+then    LINK=YES
+fi
+
+if [ "${LINK}" ]
+then    rm -rf "${LIBIFSNAME}/${STATBNDDIR}.BNDDIR"
+        CMD="CRTBNDDIR BNDDIR(${TARGETLIB}/${STATBNDDIR})"
+        CMD="${CMD} TEXT('ZLIB static binding directory')"
+        system "${CMD}"
+
+        for MODULE in ${MODULES}
+        do      CMD="ADDBNDDIRE BNDDIR(${TARGETLIB}/${STATBNDDIR})"
+                CMD="${CMD} OBJ((${TARGETLIB}/${MODULE} *MODULE))"
+                system "${CMD}"
+        done
+fi
+
+
+#       The exportation file for service program creation must be in a DB2
+#               source file, so make sure it exists.
+
+if action_needed "${LIBIFSNAME}/TOOLS.FILE"
+then    CMD="CRTSRCPF FILE(${TARGETLIB}/TOOLS) RCDLEN(112)"
+        CMD="${CMD} CCSID(${TGTCCSID}) TEXT('ZLIB: build tools')"
+        system "${CMD}"
+fi
+
+
+DEST="${LIBIFSNAME}/TOOLS.FILE/BNDSRC.MBR"
+
+if action_needed "${SCRIPTDIR}/bndsrc" "${DEST}"
+then    CMD="CPY OBJ('${SCRIPTDIR}/bndsrc') TOOBJ('${DEST}')"
+        CMD="${CMD} TOCCSID(${TGTCCSID}) DTAFMT(*TEXT) REPLACE(*YES)"
+        system "${CMD}"
+        # touch -r "${SCRIPTDIR}/bndsrc" "${DEST}"
+        LINK=YES
+fi
+
+
+#       Build the service program if needed.
+
+if action_needed "${LIBIFSNAME}/${SRVPGM}.SRVPGM"
+then    LINK=YES
+fi
+
+if [ "${LINK}" ]
+then    CMD="CRTSRVPGM SRVPGM(${TARGETLIB}/${SRVPGM})"
+        CMD="${CMD} SRCFILE(${TARGETLIB}/TOOLS) SRCMBR(BNDSRC)"
+        CMD="${CMD} MODULE(${TARGETLIB}/OS400)"
+        CMD="${CMD} BNDDIR(${TARGETLIB}/${STATBNDDIR})"
+        CMD="${CMD} TEXT('ZLIB ${VERSION} dynamic library')"
+        CMD="${CMD} TGTRLS(${TGTRLS})"
+        system "${CMD}"
+        LINK=YES
+
+        #       Duplicate the service program for a versioned backup.
+
+        BACKUP=`echo "${SRVPGM}${VERSION}"                              |
+                sed -e 's/.*\(..........\)$/\1/' -e 's/\./_/g'`
+        BACKUP="`db2_name \"${BACKUP}\"`"
+        BKUPIFSNAME="${LIBIFSNAME}/${BACKUP}.SRVPGM"
+        rm -f "${BKUPIFSNAME}"
+        CMD="CRTDUPOBJ OBJ(${SRVPGM}) FROMLIB(${TARGETLIB})"
+        CMD="${CMD} OBJTYPE(*SRVPGM) NEWOBJ(${BACKUP})"
+        system "${CMD}"
+fi
+
+
+#       If needed, (re)create the dynamic binding directory.
+
+if action_needed "${LIBIFSNAME}/${DYNBNDDIR}.BNDDIR"
+then    LINK=YES
+fi
+
+if [ "${LINK}" ]
+then    rm -rf "${LIBIFSNAME}/${DYNBNDDIR}.BNDDIR"
+        CMD="CRTBNDDIR BNDDIR(${TARGETLIB}/${DYNBNDDIR})"
+        CMD="${CMD} TEXT('ZLIB dynamic binding directory')"
+        system "${CMD}"
+        CMD="ADDBNDDIRE BNDDIR(${TARGETLIB}/${DYNBNDDIR})"
+        CMD="${CMD} OBJ((*LIBL/${SRVPGM} *SRVPGM))"
+        system "${CMD}"
+fi
diff --git a/compat/zlib/os400/zlib.inc b/compat/zlib/os400/zlib.inc
new file mode 100644
index 0000000..744729a
--- /dev/null
+++ b/compat/zlib/os400/zlib.inc
@@ -0,0 +1,527 @@
+      *  ZLIB.INC - Interface to the general purpose compression library
+      *
+      *  ILE RPG400 version by Patrick Monnerat, DATASPHERE.
+      *  Version 1.3.1
+      *
+      *
+      *  WARNING:
+      *     Procedures inflateInit(), inflateInit2(), deflateInit(),
+      *         deflateInit2() and inflateBackInit() need to be called with
+      *         two additional arguments:
+      *         the package version string and the stream control structure.
+      *         size. This is needed because RPG lacks some macro feature.
+      *         Call these procedures as:
+      *             inflateInit(...: ZLIB_VERSION: %size(z_stream))
+      *
+      /if not defined(ZLIB_H_)
+      /define ZLIB_H_
+      *
+      **************************************************************************
+      *                               Constants
+      **************************************************************************
+      *
+      *  Versioning information.
+      *
+     D ZLIB_VERSION    C                   '1.3.1'
+     D ZLIB_VERNUM     C                   X'12a0'
+     D ZLIB_VER_MAJOR  C                   1
+     D ZLIB_VER_MINOR  C                   3
+     D ZLIB_VER_REVISION...
+     D                 C                   1
+     D ZLIB_VER_SUBREVISION...
+     D                 C                   0
+      *
+      *  Other equates.
+      *
+     D Z_NO_FLUSH      C                   0
+     D Z_PARTIAL_FLUSH...
+     D                 C                   1
+     D Z_SYNC_FLUSH    C                   2
+     D Z_FULL_FLUSH    C                   3
+     D Z_FINISH        C                   4
+     D Z_BLOCK         C                   5
+     D Z_TREES         C                   6
+      *
+     D Z_OK            C                   0
+     D Z_STREAM_END    C                   1
+     D Z_NEED_DICT     C                   2
+     D Z_ERRNO         C                   -1
+     D Z_STREAM_ERROR  C                   -2
+     D Z_DATA_ERROR    C                   -3
+     D Z_MEM_ERROR     C                   -4
+     D Z_BUF_ERROR     C                   -5
+     D Z_VERSION_ERROR C                   -6
+      *
+     D Z_NO_COMPRESSION...
+     D                 C                   0
+     D Z_BEST_SPEED    C                   1
+     D Z_BEST_COMPRESSION...
+     D                 C                   9
+     D Z_DEFAULT_COMPRESSION...
+     D                 C                   -1
+      *
+     D Z_FILTERED      C                   1
+     D Z_HUFFMAN_ONLY  C                   2
+     D Z_RLE           C                   3
+     D Z_DEFAULT_STRATEGY...
+     D                 C                   0
+      *
+     D Z_BINARY        C                   0
+     D Z_ASCII         C                   1
+     D Z_UNKNOWN       C                   2
+      *
+     D Z_DEFLATED      C                   8
+      *
+     D Z_NULL          C                   0
+      *
+      **************************************************************************
+      *                                 Types
+      **************************************************************************
+      *
+     D z_streamp       S               *                                        Stream struct ptr
+     D gzFile          S               *                                        File pointer
+     D gz_headerp      S               *
+     D z_off_t         S             10i 0                                      Stream offsets
+     D z_off64_t       S             20i 0                                      Stream offsets
+      *
+      **************************************************************************
+      *                               Structures
+      **************************************************************************
+      *
+      *  The GZIP encode/decode stream support structure.
+      *
+     D z_stream        DS                  align based(z_streamp)
+     D  zs_next_in                     *                                        Next input byte
+     D  zs_avail_in                  10U 0                                      Byte cnt at next_in
+     D  zs_total_in                  10U 0                                      Total bytes read
+     D  zs_next_out                    *                                        Output buffer ptr
+     D  zs_avail_out                 10U 0                                      Room left @ next_out
+     D  zs_total_out                 10U 0                                      Total bytes written
+     D  zs_msg                         *                                        Last errmsg or null
+     D  zs_state                       *                                        Internal state
+     D  zs_zalloc                      *   procptr                              Int. state allocator
+     D  zs_free                        *   procptr                              Int. state dealloc.
+     D  zs_opaque                      *                                        Private alloc. data
+     D  zs_data_type                 10i 0                                      ASC/BIN best guess
+     D  zs_adler                     10u 0                                      Uncompr. adler32 val
+     D                               10U 0                                      Reserved
+     D                               10U 0                                      Ptr. alignment
+      *
+      **************************************************************************
+      *                     Utility function prototypes
+      **************************************************************************
+      *
+     D compress        PR            10I 0 extproc('compress')
+     D  dest                      65535    options(*varsize)                    Destination buffer
+     D  destLen                      10U 0                                      Destination length
+     D  source                    65535    const options(*varsize)              Source buffer
+     D  sourceLen                    10u 0 value                                Source length
+      *
+     D compress2       PR            10I 0 extproc('compress2')
+     D  dest                      65535    options(*varsize)                    Destination buffer
+     D  destLen                      10U 0                                      Destination length
+     D  source                    65535    const options(*varsize)              Source buffer
+     D  sourceLen                    10U 0 value                                Source length
+     D  level                        10I 0 value                                Compression level
+      *
+     D compressBound   PR            10U 0 extproc('compressBound')
+     D  sourceLen                    10U 0 value
+      *
+     D uncompress      PR            10I 0 extproc('uncompress')
+     D  dest                      65535    options(*varsize)                    Destination buffer
+     D  destLen                      10U 0                                      Destination length
+     D  source                    65535    const options(*varsize)              Source buffer
+     D  sourceLen                    10U 0 value                                Source length
+      *
+     D uncompress2     PR            10I 0 extproc('uncompress2')
+     D  dest                      65535    options(*varsize)                    Destination buffer
+     D  destLen                      10U 0                                      Destination length
+     D  source                    65535    const options(*varsize)              Source buffer
+     D  sourceLen                    10U 0                                      Source length
+      *
+      /if not defined(LARGE_FILES)
+     D gzopen          PR                  extproc('gzopen')
+     D                                     like(gzFile)
+     D  path                           *   value options(*string)               File pathname
+     D  mode                           *   value options(*string)               Open mode
+      /else
+     D gzopen          PR                  extproc('gzopen64')
+     D                                     like(gzFile)
+     D  path                           *   value options(*string)               File pathname
+     D  mode                           *   value options(*string)               Open mode
+      *
+     D gzopen64        PR                  extproc('gzopen64')
+     D                                     like(gzFile)
+     D  path                           *   value options(*string)               File pathname
+     D  mode                           *   value options(*string)               Open mode
+      /endif
+      *
+     D gzdopen         PR                  extproc('gzdopen')
+     D                                     like(gzFile)
+     D  fd                           10I 0 value                                File descriptor
+     D  mode                           *   value options(*string)               Open mode
+      *
+     D gzbuffer        PR            10I 0 extproc('gzbuffer')
+     D  file                               value like(gzFile)                   File pointer
+     D  size                         10U 0 value
+      *
+     D gzsetparams     PR            10I 0 extproc('gzsetparams')
+     D  file                               value like(gzFile)                   File pointer
+     D  level                        10I 0 value
+     D  strategy                     10I 0 value
+      *
+     D gzread          PR            10I 0 extproc('gzread')
+     D  file                               value like(gzFile)                   File pointer
+     D  buf                       65535    options(*varsize)                    Buffer
+     D  len                          10u 0 value                                Buffer length
+      *
+     D gzfread          PR           20I 0 extproc('gzfread')
+     D  buf                       65535    options(*varsize)                    Buffer
+     D  size                         20u 0 value                                Buffer length
+     D  nitems                       20u 0 value                                Buffer length
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzwrite         PR            10I 0 extproc('gzwrite')
+     D  file                               value like(gzFile)                   File pointer
+     D  buf                       65535    const options(*varsize)              Buffer
+     D  len                          10u 0 value                                Buffer length
+      *
+     D gzfwrite         PR           20I 0 extproc('gzfwrite')
+     D  buf                       65535    options(*varsize)                    Buffer
+     D  size                         20u 0 value                                Buffer length
+     D  nitems                       20u 0 value                                Buffer length
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzputs          PR            10I 0 extproc('gzputs')
+     D  file                               value like(gzFile)                   File pointer
+     D  s                              *   value options(*string)               String to output
+      *
+     D gzgets          PR              *   extproc('gzgets')
+     D  file                               value like(gzFile)                   File pointer
+     D  buf                       65535    options(*varsize)                    Read buffer
+     D  len                          10i 0 value                                Buffer length
+      *
+     D gzputc          PR            10i 0 extproc('gzputc')
+     D  file                               value like(gzFile)                   File pointer
+     D  c                            10I 0 value                                Character to write
+      *
+     D gzgetc          PR            10i 0 extproc('gzgetc')
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzgetc_         PR            10i 0 extproc('gzgetc_')
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzungetc        PR            10i 0 extproc('gzungetc')
+     D  c                            10I 0 value                                Character to push
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzflush         PR            10i 0 extproc('gzflush')
+     D  file                               value like(gzFile)                   File pointer
+     D  flush                        10I 0 value                                Type of flush
+      *
+      /if not defined(LARGE_FILES)
+     D gzseek          PR                  extproc('gzseek')
+     D                                     like(z_off_t)
+     D  file                               value like(gzFile)                   File pointer
+     D  offset                             value like(z_off_t)                  Offset
+     D  whence                       10i 0 value                                Origin
+      /else
+     D gzseek          PR                  extproc('gzseek64')
+     D                                     like(z_off_t)
+     D  file                               value like(gzFile)                   File pointer
+     D  offset                             value like(z_off_t)                  Offset
+     D  whence                       10i 0 value                                Origin
+      *
+     D gzseek64        PR                  extproc('gzseek64')
+     D                                     like(z_off64_t)
+     D  file                               value like(gzFile)                   File pointer
+     D  offset                             value like(z_off64_t)                Offset
+     D  whence                       10i 0 value                                Origin
+      /endif
+      *
+     D gzrewind        PR            10i 0 extproc('gzrewind')
+     D  file                               value like(gzFile)                   File pointer
+      *
+      /if not defined(LARGE_FILES)
+     D gztell          PR                  extproc('gztell')
+     D                                     like(z_off_t)
+     D  file                               value like(gzFile)                   File pointer
+      /else
+     D gztell          PR                  extproc('gztell64')
+     D                                     like(z_off_t)
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gztell64        PR                  extproc('gztell64')
+     D                                     like(z_off64_t)
+     D  file                               value like(gzFile)                   File pointer
+      /endif
+      *
+      /if not defined(LARGE_FILES)
+     D gzoffset        PR                  extproc('gzoffset')
+     D                                     like(z_off_t)
+     D  file                               value like(gzFile)                   File pointer
+      /else
+     D gzoffset        PR                  extproc('gzoffset64')
+     D                                     like(z_off_t)
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzoffset64      PR                  extproc('gzoffset64')
+     D                                     like(z_off64_t)
+     D  file                               value like(gzFile)                   File pointer
+      /endif
+      *
+     D gzeof           PR            10i 0 extproc('gzeof')
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzdirect        PR            10i 0 extproc('gzdirect')
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzclose_r       PR            10i 0 extproc('gzclose_r')
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzclose_w       PR            10i 0 extproc('gzclose_w')
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzclose         PR            10i 0 extproc('gzclose')
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzerror         PR              *   extproc('gzerror')                   Error string
+     D  file                               value like(gzFile)                   File pointer
+     D  errnum                       10I 0                                      Error code
+      *
+     D gzclearerr      PR                  extproc('gzclearerr')
+     D  file                               value like(gzFile)                   File pointer
+      *
+      **************************************************************************
+      *                        Basic function prototypes
+      **************************************************************************
+      *
+     D zlibVersion     PR              *   extproc('zlibVersion')               Version string
+      *
+     D deflateInit     PR            10I 0 extproc('deflateInit_')              Init. compression
+     D  strm                               like(z_stream)                       Compression stream
+     D  level                        10I 0 value                                Compression level
+     D  version                        *   value options(*string)               Version string
+     D  stream_size                  10i 0 value                                Stream struct. size
+      *
+     D deflate         PR            10I 0 extproc('deflate')                   Compress data
+     D  strm                               like(z_stream)                       Compression stream
+     D  flush                        10I 0 value                                Flush type required
+      *
+     D deflateEnd      PR            10I 0 extproc('deflateEnd')                Termin. compression
+     D  strm                               like(z_stream)                       Compression stream
+      *
+     D inflateInit     PR            10I 0 extproc('inflateInit_')              Init. expansion
+     D  strm                               like(z_stream)                       Expansion stream
+     D  version                        *   value options(*string)               Version string
+     D  stream_size                  10i 0 value                                Stream struct. size
+      *
+     D inflate         PR            10I 0 extproc('inflate')                   Expand data
+     D  strm                               like(z_stream)                       Expansion stream
+     D  flush                        10I 0 value                                Flush type required
+      *
+     D inflateEnd      PR            10I 0 extproc('inflateEnd')                Termin. expansion
+     D  strm                               like(z_stream)                       Expansion stream
+      *
+      **************************************************************************
+      *                        Advanced function prototypes
+      **************************************************************************
+      *
+     D deflateInit2    PR            10I 0 extproc('deflateInit2_')             Init. compression
+     D  strm                               like(z_stream)                       Compression stream
+     D  level                        10I 0 value                                Compression level
+     D  method                       10I 0 value                                Compression method
+     D  windowBits                   10I 0 value                                log2(window size)
+     D  memLevel                     10I 0 value                                Mem/cmpress tradeoff
+     D  strategy                     10I 0 value                                Compression strategy
+     D  version                        *   value options(*string)               Version string
+     D  stream_size                  10i 0 value                                Stream struct. size
+      *
+     D deflateSetDictionary...
+     D                 PR            10I 0 extproc('deflateSetDictionary')      Init. dictionary
+     D  strm                               like(z_stream)                       Compression stream
+     D  dictionary                65535    const options(*varsize)              Dictionary bytes
+     D  dictLength                   10U 0 value                                Dictionary length
+      *
+     D deflateCopy     PR            10I 0 extproc('deflateCopy')               Compress strm 2 strm
+     D  dest                               like(z_stream)                       Destination stream
+     D  source                             like(z_stream)                       Source stream
+      *
+     D deflateReset    PR            10I 0 extproc('deflateReset')              End and init. stream
+     D  strm                               like(z_stream)                       Compression stream
+      *
+     D deflateParams   PR            10I 0 extproc('deflateParams')             Change level & strat
+     D  strm                               like(z_stream)                       Compression stream
+     D  level                        10I 0 value                                Compression level
+     D  strategy                     10I 0 value                                Compression strategy
+      *
+     D deflateTune     PR            10I 0 extproc('deflateTune')
+     D  strm                               like(z_stream)                       Compression stream
+     D  good                         10I 0 value
+     D  lazy                         10I 0 value
+     D  nice                         10I 0 value
+     D  chain                        10I 0 value
+      *
+     D deflateBound    PR            10U 0 extproc('deflateBound')              Change level & strat
+     D  strm                               like(z_stream)                       Compression stream
+     D  sourcelen                    10U 0 value                                Compression level
+      *
+     D deflatePending  PR            10I 0 extproc('deflatePending')            Change level & strat
+     D  strm                               like(z_stream)                       Compression stream
+     D  pending                      10U 0                                      Pending bytes
+     D  bits                         10I 0                                      Pending bits
+      *
+     D deflatePrime    PR            10I 0 extproc('deflatePrime')              Change level & strat
+     D  strm                               like(z_stream)                       Compression stream
+     D  bits                         10I 0 value                                # of bits to insert
+     D  value                        10I 0 value                                Bits to insert
+      *
+     D inflateInit2    PR            10I 0 extproc('inflateInit2_')             Init. expansion
+     D  strm                               like(z_stream)                       Expansion stream
+     D  windowBits                   10I 0 value                                log2(window size)
+     D  version                        *   value options(*string)               Version string
+     D  stream_size                  10i 0 value                                Stream struct. size
+      *
+     D inflateSetDictionary...
+     D                 PR            10I 0 extproc('inflateSetDictionary')      Init. dictionary
+     D  strm                               like(z_stream)                       Expansion stream
+     D  dictionary                65535    const options(*varsize)              Dictionary bytes
+     D  dictLength                   10U 0 value                                Dictionary length
+      *
+     D inflateGetDictionary...
+     D                 PR            10I 0 extproc('inflateGetDictionary')      Get dictionary
+     D  strm                               like(z_stream)                       Expansion stream
+     D  dictionary                65535    options(*varsize)                    Dictionary bytes
+     D  dictLength                   10U 0                                      Dictionary length
+      *
+     D deflateGetDictionary...
+     D                 PR            10I 0 extproc('deflateGetDictionary')      Get dictionary
+     D  strm                               like(z_stream)                       Expansion stream
+     D  dictionary                65535    options(*varsize)                    Dictionary bytes
+     D  dictLength                   10U 0                                      Dictionary length
+      *
+     D inflateSync     PR            10I 0 extproc('inflateSync')               Sync. expansion
+     D  strm                               like(z_stream)                       Expansion stream
+      *
+     D inflateCopy     PR            10I 0 extproc('inflateCopy')
+     D  dest                               like(z_stream)                       Destination stream
+     D  source                             like(z_stream)                       Source stream
+      *
+     D inflateReset    PR            10I 0 extproc('inflateReset')              End and init. stream
+     D  strm                               like(z_stream)                       Expansion stream
+      *
+     D inflateReset2   PR            10I 0 extproc('inflateReset2')             End and init. stream
+     D  strm                               like(z_stream)                       Expansion stream
+     D  windowBits                   10I 0 value                                Log2(buffer size)
+      *
+     D inflatePrime    PR            10I 0 extproc('inflatePrime')              Insert bits
+     D  strm                               like(z_stream)                       Expansion stream
+     D  bits                         10I 0 value                                Bit count
+     D  value                        10I 0 value                                Bits to insert
+      *
+     D inflateMark     PR            10I 0 extproc('inflateMark')               Get inflate info
+     D  strm                               like(z_stream)                       Expansion stream
+      *
+     D inflateCodesUsed...
+                       PR            20U 0 extproc('inflateCodesUsed')
+     D  strm                               like(z_stream)                       Expansion stream
+      *
+     D inflateValidate...
+                       PR            20U 0 extproc('inflateValidate')
+     D  strm                               like(z_stream)                       Expansion stream
+     D  check                        10I 0 value
+      *
+     D inflateGetHeader...
+                       PR            10U 0 extproc('inflateGetHeader')
+     D  strm                               like(z_stream)                       Expansion stream
+     D  head                               like(gz_headerp)
+      *
+     D deflateSetHeader...
+                       PR            10U 0 extproc('deflateSetHeader')
+     D  strm                               like(z_stream)                       Expansion stream
+     D  head                               like(gz_headerp)
+      *
+     D inflateBackInit...
+     D                 PR            10I 0 extproc('inflateBackInit_')
+     D  strm                               like(z_stream)                       Expansion stream
+     D  windowBits                   10I 0 value                                Log2(buffer size)
+     D  window                    65535    options(*varsize)                    Buffer
+     D  version                        *   value options(*string)               Version string
+     D  stream_size                  10i 0 value                                Stream struct. size
+      *
+     D inflateBack     PR            10I 0 extproc('inflateBack')
+     D  strm                               like(z_stream)                       Expansion stream
+     D  in                             *   value procptr                        Input function
+     D  in_desc                        *   value                                Input descriptor
+     D  out                            *   value procptr                        Output function
+     D  out_desc                       *   value                                Output descriptor
+      *
+     D inflateBackEnd  PR            10I 0 extproc('inflateBackEnd')
+     D  strm                               like(z_stream)                       Expansion stream
+      *
+     D zlibCompileFlags...
+     D                 PR            10U 0 extproc('zlibCompileFlags')
+      *
+      **************************************************************************
+      *                        Checksum function prototypes
+      **************************************************************************
+      *
+     D adler32         PR            10U 0 extproc('adler32')                   New checksum
+     D  adler                        10U 0 value                                Old checksum
+     D  buf                       65535    const options(*varsize)              Bytes to accumulate
+     D  len                          10U 0 value                                Buffer length
+      *
+     D adler32_combine...
+                       PR            10U 0 extproc('adler32_combine')           New checksum
+     D  adler1                       10U 0 value                                Old checksum
+     D  adler2                       10U 0 value                                Old checksum
+     D  len2                         20U 0 value                                Buffer length
+      *
+     D adler32_z       PR            10U 0 extproc('adler32_z')                 New checksum
+     D  adler                        10U 0 value                                Old checksum
+     D  buf                       65535    const options(*varsize)              Bytes to accumulate
+     D  len                          20U 0 value                                Buffer length
+      *
+     D crc32           PR            10U 0 extproc('crc32')                     New checksum
+     D  crc                          10U 0 value                                Old checksum
+     D  buf                       65535    const options(*varsize)              Bytes to accumulate
+     D  len                          10U 0 value                                Buffer length
+      *
+     D crc32_combine...
+                       PR            10U 0 extproc('crc32_combine')             New checksum
+     D  crc1                         10U 0 value                                Old checksum
+     D  crc2                         10U 0 value                                Old checksum
+     D  len2                         20U 0 value                                Buffer length
+      *
+     D crc32_z         PR            10U 0 extproc('crc32_z')                   New checksum
+     D  crc                          10U 0 value                                Old checksum
+     D  buf                       65535    const options(*varsize)              Bytes to accumulate
+     D  len                          20U 0 value                                Buffer length
+      *
+      **************************************************************************
+      *                     Miscellaneous function prototypes
+      **************************************************************************
+      *
+     D zError          PR              *   extproc('zError')                    Error string
+     D  err                          10I 0 value                                Error code
+      *
+     D inflateSyncPoint...
+     D                 PR            10I 0 extproc('inflateSyncPoint')
+     D  strm                               like(z_stream)                       Expansion stream
+      *
+     D get_crc_table   PR              *   extproc('get_crc_table')             Ptr to ulongs
+      *
+     D inflateUndermine...
+     D                 PR            10I 0 extproc('inflateUndermine')
+     D  strm                               like(z_stream)                       Expansion stream
+     D  arg                          10I 0 value                                Error code
+      *
+     D inflateResetKeep...
+     D                 PR            10I 0 extproc('inflateResetKeep')          End and init. stream
+     D  strm                               like(z_stream)                       Expansion stream
+      *
+     D deflateResetKeep...
+     D                 PR            10I 0 extproc('deflateResetKeep')          End and init. stream
+     D  strm                               like(z_stream)                       Expansion stream
+      *
+      /endif
diff --git a/compat/zlib/qnx/package.qpg b/compat/zlib/qnx/package.qpg
new file mode 100644
index 0000000..4877e0e
--- /dev/null
+++ b/compat/zlib/qnx/package.qpg
@@ -0,0 +1,141 @@
+<QPG:Generation>
+   <QPG:Options>
+      <QPG:User unattended="no" verbosity="2" listfiles="yes"/>
+      <QPG:Defaults type="qnx_package"/>
+      <QPG:Source></QPG:Source>
+      <QPG:Release number="+"/>
+      <QPG:Build></QPG:Build>
+      <QPG:FileSorting strip="yes"/>
+      <QPG:Package targets="combine"/>
+      <QPG:Repository generate="yes"/>
+      <QPG:FinalDir></QPG:FinalDir>
+      <QPG:Cleanup></QPG:Cleanup>
+   </QPG:Options>
+
+   <QPG:Responsible>
+      <QPG:Company></QPG:Company>
+      <QPG:Department></QPG:Department>
+      <QPG:Group></QPG:Group>
+      <QPG:Team></QPG:Team>
+      <QPG:Employee></QPG:Employee>
+      <QPG:EmailAddress></QPG:EmailAddress>
+   </QPG:Responsible>
+
+   <QPG:Values>
+      <QPG:Files>
+         <QPG:Add file="../zconf.h" install="/opt/include/" user="root:sys" permission="644"/>
+         <QPG:Add file="../zlib.h" install="/opt/include/" user="root:sys" permission="644"/>
+         <QPG:Add file="../libz.so.1.3.1" install="/opt/lib/" user="root:bin" permission="644"/>
+         <QPG:Add file="libz.so" install="/opt/lib/" component="dev" filetype="symlink" linkto="libz.so.1.3.1"/>
+         <QPG:Add file="libz.so.1" install="/opt/lib/" filetype="symlink" linkto="libz.so.1.3.1"/>
+         <QPG:Add file="../libz.so.1.3.1" install="/opt/lib/" component="slib"/>
+      </QPG:Files>
+
+      <QPG:PackageFilter>
+         <QPM:PackageManifest>
+            <QPM:PackageDescription>
+               <QPM:PackageType>Library</QPM:PackageType>
+               <QPM:PackageReleaseNotes></QPM:PackageReleaseNotes>
+               <QPM:PackageReleaseUrgency>Medium</QPM:PackageReleaseUrgency>
+               <QPM:PackageRepository></QPM:PackageRepository>
+               <QPM:FileVersion>2.0</QPM:FileVersion>
+            </QPM:PackageDescription>
+
+            <QPM:ProductDescription>
+               <QPM:ProductName>zlib</QPM:ProductName>
+               <QPM:ProductIdentifier>zlib</QPM:ProductIdentifier>
+               <QPM:ProductEmail>alain.bonnefoy@icbt.com</QPM:ProductEmail>
+               <QPM:VendorName>Public</QPM:VendorName>
+               <QPM:VendorInstallName>public</QPM:VendorInstallName>
+               <QPM:VendorURL>www.gzip.org/zlib</QPM:VendorURL>
+               <QPM:VendorEmbedURL></QPM:VendorEmbedURL>
+               <QPM:VendorEmail></QPM:VendorEmail>
+               <QPM:AuthorName>Jean-Loup Gailly,Mark Adler</QPM:AuthorName>
+               <QPM:AuthorURL>www.gzip.org/zlib</QPM:AuthorURL>
+               <QPM:AuthorEmbedURL></QPM:AuthorEmbedURL>
+               <QPM:AuthorEmail>zlib@gzip.org</QPM:AuthorEmail>
+               <QPM:ProductIconSmall></QPM:ProductIconSmall>
+               <QPM:ProductIconLarge></QPM:ProductIconLarge>
+               <QPM:ProductDescriptionShort>A massively spiffy yet delicately unobtrusive compression library.</QPM:ProductDescriptionShort>
+               <QPM:ProductDescriptionLong>zlib is designed to be a free, general-purpose, legally unencumbered, lossless data compression library for use on virtually any computer hardware and operating system.</QPM:ProductDescriptionLong>
+               <QPM:ProductDescriptionURL>http://www.gzip.org/zlib</QPM:ProductDescriptionURL>
+               <QPM:ProductDescriptionEmbedURL></QPM:ProductDescriptionEmbedURL>
+            </QPM:ProductDescription>
+
+            <QPM:ReleaseDescription>
+               <QPM:ReleaseVersion>1.3.1</QPM:ReleaseVersion>
+               <QPM:ReleaseUrgency>Medium</QPM:ReleaseUrgency>
+               <QPM:ReleaseStability>Stable</QPM:ReleaseStability>
+               <QPM:ReleaseNoteMinor></QPM:ReleaseNoteMinor>
+               <QPM:ReleaseNoteMajor></QPM:ReleaseNoteMajor>
+               <QPM:ExcludeCountries>
+                  <QPM:Country></QPM:Country>
+               </QPM:ExcludeCountries>
+
+               <QPM:ReleaseCopyright>No License</QPM:ReleaseCopyright>
+            </QPM:ReleaseDescription>
+
+            <QPM:ContentDescription>
+               <QPM:ContentTopic xmlmultiple="true">Software Development/Libraries and Extensions/C Libraries</QPM:ContentTopic>
+               <QPM:ContentKeyword>zlib,compression</QPM:ContentKeyword>
+               <QPM:TargetOS>qnx6</QPM:TargetOS>
+               <QPM:HostOS>qnx6</QPM:HostOS>
+               <QPM:DisplayEnvironment xmlmultiple="true">None</QPM:DisplayEnvironment>
+               <QPM:TargetAudience xmlmultiple="true">Developer</QPM:TargetAudience>
+            </QPM:ContentDescription>
+         </QPM:PackageManifest>
+      </QPG:PackageFilter>
+
+      <QPG:PackageFilter proc="none" target="none">
+         <QPM:PackageManifest>
+            <QPM:ProductInstallationDependencies>
+               <QPM:ProductRequirements></QPM:ProductRequirements>
+            </QPM:ProductInstallationDependencies>
+
+            <QPM:ProductInstallationProcedure>
+               <QPM:Script xmlmultiple="true">
+                  <QPM:ScriptName></QPM:ScriptName>
+                  <QPM:ScriptType>Install</QPM:ScriptType>
+                  <QPM:ScriptTiming>Post</QPM:ScriptTiming>
+                  <QPM:ScriptBlocking>No</QPM:ScriptBlocking>
+                  <QPM:ScriptResult>Ignore</QPM:ScriptResult>
+                  <QPM:ShortDescription></QPM:ShortDescription>
+                  <QPM:UseBinaries>No</QPM:UseBinaries>
+                  <QPM:Priority>Optional</QPM:Priority>
+               </QPM:Script>
+            </QPM:ProductInstallationProcedure>
+         </QPM:PackageManifest>
+
+         <QPM:Launch>
+         </QPM:Launch>
+      </QPG:PackageFilter>
+
+      <QPG:PackageFilter type="core" component="none">
+         <QPM:PackageManifest>
+            <QPM:ProductInstallationProcedure>
+	       <QPM:OrderDependency xmlmultiple="true">
+	          <QPM:Order>InstallOver</QPM:Order>
+	          <QPM:Product>zlib</QPM:Product>
+	       </QPM:OrderDependency>
+            </QPM:ProductInstallationProcedure>
+         </QPM:PackageManifest>
+
+         <QPM:Launch>
+         </QPM:Launch>
+      </QPG:PackageFilter>
+
+      <QPG:PackageFilter type="core" component="dev">
+         <QPM:PackageManifest>
+            <QPM:ProductInstallationProcedure>
+	       <QPM:OrderDependency xmlmultiple="true">
+	          <QPM:Order>InstallOver</QPM:Order>
+	          <QPM:Product>zlib-dev</QPM:Product>
+	       </QPM:OrderDependency>
+            </QPM:ProductInstallationProcedure>
+         </QPM:PackageManifest>
+
+         <QPM:Launch>
+         </QPM:Launch>
+      </QPG:PackageFilter>
+   </QPG:Values>
+</QPG:Generation>
diff --git a/compat/zlib/test/example.c b/compat/zlib/test/example.c
new file mode 100644
index 0000000..c3521dd
--- /dev/null
+++ b/compat/zlib/test/example.c
@@ -0,0 +1,546 @@
+/* example.c -- usage example of the zlib compression library
+ * Copyright (C) 1995-2006, 2011, 2016 Jean-loup Gailly
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#include "zlib.h"
+#include <stdio.h>
+
+#ifdef STDC
+#  include <string.h>
+#  include <stdlib.h>
+#endif
+
+#if defined(VMS) || defined(RISCOS)
+#  define TESTFILE "foo-gz"
+#else
+#  define TESTFILE "foo.gz"
+#endif
+
+#define CHECK_ERR(err, msg) { \
+    if (err != Z_OK) { \
+        fprintf(stderr, "%s error: %d\n", msg, err); \
+        exit(1); \
+    } \
+}
+
+static z_const char hello[] = "hello, hello!";
+/* "hello world" would be more standard, but the repeated "hello"
+ * stresses the compression code better, sorry...
+ */
+
+static const char dictionary[] = "hello";
+static uLong dictId;    /* Adler32 value of the dictionary */
+
+#ifdef Z_SOLO
+
+static void *myalloc(void *q, unsigned n, unsigned m) {
+    (void)q;
+    return calloc(n, m);
+}
+
+static void myfree(void *q, void *p) {
+    (void)q;
+    free(p);
+}
+
+static alloc_func zalloc = myalloc;
+static free_func zfree = myfree;
+
+#else /* !Z_SOLO */
+
+static alloc_func zalloc = (alloc_func)0;
+static free_func zfree = (free_func)0;
+
+/* ===========================================================================
+ * Test compress() and uncompress()
+ */
+static void test_compress(Byte *compr, uLong comprLen, Byte *uncompr,
+                   uLong uncomprLen) {
+    int err;
+    uLong len = (uLong)strlen(hello)+1;
+
+    err = compress(compr, &comprLen, (const Bytef*)hello, len);
+    CHECK_ERR(err, "compress");
+
+    strcpy((char*)uncompr, "garbage");
+
+    err = uncompress(uncompr, &uncomprLen, compr, comprLen);
+    CHECK_ERR(err, "uncompress");
+
+    if (strcmp((char*)uncompr, hello)) {
+        fprintf(stderr, "bad uncompress\n");
+        exit(1);
+    } else {
+        printf("uncompress(): %s\n", (char *)uncompr);
+    }
+}
+
+/* ===========================================================================
+ * Test read/write of .gz files
+ */
+static void test_gzio(const char *fname, Byte *uncompr, uLong uncomprLen) {
+#ifdef NO_GZCOMPRESS
+    fprintf(stderr, "NO_GZCOMPRESS -- gz* functions cannot compress\n");
+#else
+    int err;
+    int len = (int)strlen(hello)+1;
+    gzFile file;
+    z_off_t pos;
+
+    file = gzopen(fname, "wb");
+    if (file == NULL) {
+        fprintf(stderr, "gzopen error\n");
+        exit(1);
+    }
+    gzputc(file, 'h');
+    if (gzputs(file, "ello") != 4) {
+        fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err));
+        exit(1);
+    }
+    if (gzprintf(file, ", %s!", "hello") != 8) {
+        fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err));
+        exit(1);
+    }
+    gzseek(file, 1L, SEEK_CUR); /* add one zero byte */
+    gzclose(file);
+
+    file = gzopen(fname, "rb");
+    if (file == NULL) {
+        fprintf(stderr, "gzopen error\n");
+        exit(1);
+    }
+    strcpy((char*)uncompr, "garbage");
+
+    if (gzread(file, uncompr, (unsigned)uncomprLen) != len) {
+        fprintf(stderr, "gzread err: %s\n", gzerror(file, &err));
+        exit(1);
+    }
+    if (strcmp((char*)uncompr, hello)) {
+        fprintf(stderr, "bad gzread: %s\n", (char*)uncompr);
+        exit(1);
+    } else {
+        printf("gzread(): %s\n", (char*)uncompr);
+    }
+
+    pos = gzseek(file, -8L, SEEK_CUR);
+    if (pos != 6 || gztell(file) != pos) {
+        fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n",
+                (long)pos, (long)gztell(file));
+        exit(1);
+    }
+
+    if (gzgetc(file) != ' ') {
+        fprintf(stderr, "gzgetc error\n");
+        exit(1);
+    }
+
+    if (gzungetc(' ', file) != ' ') {
+        fprintf(stderr, "gzungetc error\n");
+        exit(1);
+    }
+
+    gzgets(file, (char*)uncompr, (int)uncomprLen);
+    if (strlen((char*)uncompr) != 7) { /* " hello!" */
+        fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err));
+        exit(1);
+    }
+    if (strcmp((char*)uncompr, hello + 6)) {
+        fprintf(stderr, "bad gzgets after gzseek\n");
+        exit(1);
+    } else {
+        printf("gzgets() after gzseek: %s\n", (char*)uncompr);
+    }
+
+    gzclose(file);
+#endif
+}
+
+#endif /* Z_SOLO */
+
+/* ===========================================================================
+ * Test deflate() with small buffers
+ */
+static void test_deflate(Byte *compr, uLong comprLen) {
+    z_stream c_stream; /* compression stream */
+    int err;
+    uLong len = (uLong)strlen(hello)+1;
+
+    c_stream.zalloc = zalloc;
+    c_stream.zfree = zfree;
+    c_stream.opaque = (voidpf)0;
+
+    err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
+    CHECK_ERR(err, "deflateInit");
+
+    c_stream.next_in  = (z_const unsigned char *)hello;
+    c_stream.next_out = compr;
+
+    while (c_stream.total_in != len && c_stream.total_out < comprLen) {
+        c_stream.avail_in = c_stream.avail_out = 1; /* force small buffers */
+        err = deflate(&c_stream, Z_NO_FLUSH);
+        CHECK_ERR(err, "deflate");
+    }
+    /* Finish the stream, still forcing small buffers: */
+    for (;;) {
+        c_stream.avail_out = 1;
+        err = deflate(&c_stream, Z_FINISH);
+        if (err == Z_STREAM_END) break;
+        CHECK_ERR(err, "deflate");
+    }
+
+    err = deflateEnd(&c_stream);
+    CHECK_ERR(err, "deflateEnd");
+}
+
+/* ===========================================================================
+ * Test inflate() with small buffers
+ */
+static void test_inflate(Byte *compr, uLong comprLen, Byte *uncompr,
+                  uLong uncomprLen) {
+    int err;
+    z_stream d_stream; /* decompression stream */
+
+    strcpy((char*)uncompr, "garbage");
+
+    d_stream.zalloc = zalloc;
+    d_stream.zfree = zfree;
+    d_stream.opaque = (voidpf)0;
+
+    d_stream.next_in  = compr;
+    d_stream.avail_in = 0;
+    d_stream.next_out = uncompr;
+
+    err = inflateInit(&d_stream);
+    CHECK_ERR(err, "inflateInit");
+
+    while (d_stream.total_out < uncomprLen && d_stream.total_in < comprLen) {
+        d_stream.avail_in = d_stream.avail_out = 1; /* force small buffers */
+        err = inflate(&d_stream, Z_NO_FLUSH);
+        if (err == Z_STREAM_END) break;
+        CHECK_ERR(err, "inflate");
+    }
+
+    err = inflateEnd(&d_stream);
+    CHECK_ERR(err, "inflateEnd");
+
+    if (strcmp((char*)uncompr, hello)) {
+        fprintf(stderr, "bad inflate\n");
+        exit(1);
+    } else {
+        printf("inflate(): %s\n", (char *)uncompr);
+    }
+}
+
+/* ===========================================================================
+ * Test deflate() with large buffers and dynamic change of compression level
+ */
+static void test_large_deflate(Byte *compr, uLong comprLen, Byte *uncompr,
+                        uLong uncomprLen) {
+    z_stream c_stream; /* compression stream */
+    int err;
+
+    c_stream.zalloc = zalloc;
+    c_stream.zfree = zfree;
+    c_stream.opaque = (voidpf)0;
+
+    err = deflateInit(&c_stream, Z_BEST_SPEED);
+    CHECK_ERR(err, "deflateInit");
+
+    c_stream.next_out = compr;
+    c_stream.avail_out = (uInt)comprLen;
+
+    /* At this point, uncompr is still mostly zeroes, so it should compress
+     * very well:
+     */
+    c_stream.next_in = uncompr;
+    c_stream.avail_in = (uInt)uncomprLen;
+    err = deflate(&c_stream, Z_NO_FLUSH);
+    CHECK_ERR(err, "deflate");
+    if (c_stream.avail_in != 0) {
+        fprintf(stderr, "deflate not greedy\n");
+        exit(1);
+    }
+
+    /* Feed in already compressed data and switch to no compression: */
+    deflateParams(&c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY);
+    c_stream.next_in = compr;
+    c_stream.avail_in = (uInt)uncomprLen/2;
+    err = deflate(&c_stream, Z_NO_FLUSH);
+    CHECK_ERR(err, "deflate");
+
+    /* Switch back to compressing mode: */
+    deflateParams(&c_stream, Z_BEST_COMPRESSION, Z_FILTERED);
+    c_stream.next_in = uncompr;
+    c_stream.avail_in = (uInt)uncomprLen;
+    err = deflate(&c_stream, Z_NO_FLUSH);
+    CHECK_ERR(err, "deflate");
+
+    err = deflate(&c_stream, Z_FINISH);
+    if (err != Z_STREAM_END) {
+        fprintf(stderr, "deflate should report Z_STREAM_END\n");
+        exit(1);
+    }
+    err = deflateEnd(&c_stream);
+    CHECK_ERR(err, "deflateEnd");
+}
+
+/* ===========================================================================
+ * Test inflate() with large buffers
+ */
+static void test_large_inflate(Byte *compr, uLong comprLen, Byte *uncompr,
+                        uLong uncomprLen) {
+    int err;
+    z_stream d_stream; /* decompression stream */
+
+    strcpy((char*)uncompr, "garbage");
+
+    d_stream.zalloc = zalloc;
+    d_stream.zfree = zfree;
+    d_stream.opaque = (voidpf)0;
+
+    d_stream.next_in  = compr;
+    d_stream.avail_in = (uInt)comprLen;
+
+    err = inflateInit(&d_stream);
+    CHECK_ERR(err, "inflateInit");
+
+    for (;;) {
+        d_stream.next_out = uncompr;            /* discard the output */
+        d_stream.avail_out = (uInt)uncomprLen;
+        err = inflate(&d_stream, Z_NO_FLUSH);
+        if (err == Z_STREAM_END) break;
+        CHECK_ERR(err, "large inflate");
+    }
+
+    err = inflateEnd(&d_stream);
+    CHECK_ERR(err, "inflateEnd");
+
+    if (d_stream.total_out != 2*uncomprLen + uncomprLen/2) {
+        fprintf(stderr, "bad large inflate: %ld\n", d_stream.total_out);
+        exit(1);
+    } else {
+        printf("large_inflate(): OK\n");
+    }
+}
+
+/* ===========================================================================
+ * Test deflate() with full flush
+ */
+static void test_flush(Byte *compr, uLong *comprLen) {
+    z_stream c_stream; /* compression stream */
+    int err;
+    uInt len = (uInt)strlen(hello)+1;
+
+    c_stream.zalloc = zalloc;
+    c_stream.zfree = zfree;
+    c_stream.opaque = (voidpf)0;
+
+    err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
+    CHECK_ERR(err, "deflateInit");
+
+    c_stream.next_in  = (z_const unsigned char *)hello;
+    c_stream.next_out = compr;
+    c_stream.avail_in = 3;
+    c_stream.avail_out = (uInt)*comprLen;
+    err = deflate(&c_stream, Z_FULL_FLUSH);
+    CHECK_ERR(err, "deflate");
+
+    compr[3]++; /* force an error in first compressed block */
+    c_stream.avail_in = len - 3;
+
+    err = deflate(&c_stream, Z_FINISH);
+    if (err != Z_STREAM_END) {
+        CHECK_ERR(err, "deflate");
+    }
+    err = deflateEnd(&c_stream);
+    CHECK_ERR(err, "deflateEnd");
+
+    *comprLen = c_stream.total_out;
+}
+
+/* ===========================================================================
+ * Test inflateSync()
+ */
+static void test_sync(Byte *compr, uLong comprLen, Byte *uncompr,
+                      uLong uncomprLen) {
+    int err;
+    z_stream d_stream; /* decompression stream */
+
+    strcpy((char*)uncompr, "garbage");
+
+    d_stream.zalloc = zalloc;
+    d_stream.zfree = zfree;
+    d_stream.opaque = (voidpf)0;
+
+    d_stream.next_in  = compr;
+    d_stream.avail_in = 2; /* just read the zlib header */
+
+    err = inflateInit(&d_stream);
+    CHECK_ERR(err, "inflateInit");
+
+    d_stream.next_out = uncompr;
+    d_stream.avail_out = (uInt)uncomprLen;
+
+    err = inflate(&d_stream, Z_NO_FLUSH);
+    CHECK_ERR(err, "inflate");
+
+    d_stream.avail_in = (uInt)comprLen-2;   /* read all compressed data */
+    err = inflateSync(&d_stream);           /* but skip the damaged part */
+    CHECK_ERR(err, "inflateSync");
+
+    err = inflate(&d_stream, Z_FINISH);
+    if (err != Z_STREAM_END) {
+        fprintf(stderr, "inflate should report Z_STREAM_END\n");
+        exit(1);
+    }
+    err = inflateEnd(&d_stream);
+    CHECK_ERR(err, "inflateEnd");
+
+    printf("after inflateSync(): hel%s\n", (char *)uncompr);
+}
+
+/* ===========================================================================
+ * Test deflate() with preset dictionary
+ */
+static void test_dict_deflate(Byte *compr, uLong comprLen) {
+    z_stream c_stream; /* compression stream */
+    int err;
+
+    c_stream.zalloc = zalloc;
+    c_stream.zfree = zfree;
+    c_stream.opaque = (voidpf)0;
+
+    err = deflateInit(&c_stream, Z_BEST_COMPRESSION);
+    CHECK_ERR(err, "deflateInit");
+
+    err = deflateSetDictionary(&c_stream,
+                (const Bytef*)dictionary, (int)sizeof(dictionary));
+    CHECK_ERR(err, "deflateSetDictionary");
+
+    dictId = c_stream.adler;
+    c_stream.next_out = compr;
+    c_stream.avail_out = (uInt)comprLen;
+
+    c_stream.next_in = (z_const unsigned char *)hello;
+    c_stream.avail_in = (uInt)strlen(hello)+1;
+
+    err = deflate(&c_stream, Z_FINISH);
+    if (err != Z_STREAM_END) {
+        fprintf(stderr, "deflate should report Z_STREAM_END\n");
+        exit(1);
+    }
+    err = deflateEnd(&c_stream);
+    CHECK_ERR(err, "deflateEnd");
+}
+
+/* ===========================================================================
+ * Test inflate() with a preset dictionary
+ */
+static void test_dict_inflate(Byte *compr, uLong comprLen, Byte *uncompr,
+                       uLong uncomprLen) {
+    int err;
+    z_stream d_stream; /* decompression stream */
+
+    strcpy((char*)uncompr, "garbage");
+
+    d_stream.zalloc = zalloc;
+    d_stream.zfree = zfree;
+    d_stream.opaque = (voidpf)0;
+
+    d_stream.next_in  = compr;
+    d_stream.avail_in = (uInt)comprLen;
+
+    err = inflateInit(&d_stream);
+    CHECK_ERR(err, "inflateInit");
+
+    d_stream.next_out = uncompr;
+    d_stream.avail_out = (uInt)uncomprLen;
+
+    for (;;) {
+        err = inflate(&d_stream, Z_NO_FLUSH);
+        if (err == Z_STREAM_END) break;
+        if (err == Z_NEED_DICT) {
+            if (d_stream.adler != dictId) {
+                fprintf(stderr, "unexpected dictionary");
+                exit(1);
+            }
+            err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary,
+                                       (int)sizeof(dictionary));
+        }
+        CHECK_ERR(err, "inflate with dict");
+    }
+
+    err = inflateEnd(&d_stream);
+    CHECK_ERR(err, "inflateEnd");
+
+    if (strcmp((char*)uncompr, hello)) {
+        fprintf(stderr, "bad inflate with dict\n");
+        exit(1);
+    } else {
+        printf("inflate with dictionary: %s\n", (char *)uncompr);
+    }
+}
+
+/* ===========================================================================
+ * Usage:  example [output.gz  [input.gz]]
+ */
+
+int main(int argc, char *argv[]) {
+    Byte *compr, *uncompr;
+    uLong uncomprLen = 20000;
+    uLong comprLen = 3 * uncomprLen;
+    static const char* myVersion = ZLIB_VERSION;
+
+    if (zlibVersion()[0] != myVersion[0]) {
+        fprintf(stderr, "incompatible zlib version\n");
+        exit(1);
+
+    } else if (strcmp(zlibVersion(), ZLIB_VERSION) != 0) {
+        fprintf(stderr, "warning: different zlib version linked: %s\n",
+                zlibVersion());
+    }
+
+    printf("zlib version %s = 0x%04x, compile flags = 0x%lx\n",
+            ZLIB_VERSION, ZLIB_VERNUM, zlibCompileFlags());
+
+    compr    = (Byte*)calloc((uInt)comprLen, 1);
+    uncompr  = (Byte*)calloc((uInt)uncomprLen, 1);
+    /* compr and uncompr are cleared to avoid reading uninitialized
+     * data and to ensure that uncompr compresses well.
+     */
+    if (compr == Z_NULL || uncompr == Z_NULL) {
+        printf("out of memory\n");
+        exit(1);
+    }
+
+#ifdef Z_SOLO
+    (void)argc;
+    (void)argv;
+#else
+    test_compress(compr, comprLen, uncompr, uncomprLen);
+
+    test_gzio((argc > 1 ? argv[1] : TESTFILE),
+              uncompr, uncomprLen);
+#endif
+
+    test_deflate(compr, comprLen);
+    test_inflate(compr, comprLen, uncompr, uncomprLen);
+
+    test_large_deflate(compr, comprLen, uncompr, uncomprLen);
+    test_large_inflate(compr, comprLen, uncompr, uncomprLen);
+
+    test_flush(compr, &comprLen);
+    test_sync(compr, comprLen, uncompr, uncomprLen);
+    comprLen = 3 * uncomprLen;
+
+    test_dict_deflate(compr, comprLen);
+    test_dict_inflate(compr, comprLen, uncompr, uncomprLen);
+
+    free(compr);
+    free(uncompr);
+
+    return 0;
+}
diff --git a/compat/zlib/test/infcover.c b/compat/zlib/test/infcover.c
new file mode 100644
index 0000000..8912c40
--- /dev/null
+++ b/compat/zlib/test/infcover.c
@@ -0,0 +1,672 @@
+/* infcover.c -- test zlib's inflate routines with full code coverage
+ * Copyright (C) 2011, 2016 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* to use, do: ./configure --cover && make cover */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include "zlib.h"
+
+/* get definition of internal structure so we can mess with it (see pull()),
+   and so we can call inflate_trees() (see cover5()) */
+#define ZLIB_INTERNAL
+#include "inftrees.h"
+#include "inflate.h"
+
+#define local static
+
+/* -- memory tracking routines -- */
+
+/*
+   These memory tracking routines are provided to zlib and track all of zlib's
+   allocations and deallocations, check for LIFO operations, keep a current
+   and high water mark of total bytes requested, optionally set a limit on the
+   total memory that can be allocated, and when done check for memory leaks.
+
+   They are used as follows:
+
+   z_stream strm;
+   mem_setup(&strm)         initializes the memory tracking and sets the
+                            zalloc, zfree, and opaque members of strm to use
+                            memory tracking for all zlib operations on strm
+   mem_limit(&strm, limit)  sets a limit on the total bytes requested -- a
+                            request that exceeds this limit will result in an
+                            allocation failure (returns NULL) -- setting the
+                            limit to zero means no limit, which is the default
+                            after mem_setup()
+   mem_used(&strm, "msg")   prints to stderr "msg" and the total bytes used
+   mem_high(&strm, "msg")   prints to stderr "msg" and the high water mark
+   mem_done(&strm, "msg")   ends memory tracking, releases all allocations
+                            for the tracking as well as leaked zlib blocks, if
+                            any.  If there was anything unusual, such as leaked
+                            blocks, non-FIFO frees, or frees of addresses not
+                            allocated, then "msg" and information about the
+                            problem is printed to stderr.  If everything is
+                            normal, nothing is printed. mem_done resets the
+                            strm members to Z_NULL to use the default memory
+                            allocation routines on the next zlib initialization
+                            using strm.
+ */
+
+/* these items are strung together in a linked list, one for each allocation */
+struct mem_item {
+    void *ptr;                  /* pointer to allocated memory */
+    size_t size;                /* requested size of allocation */
+    struct mem_item *next;      /* pointer to next item in list, or NULL */
+};
+
+/* this structure is at the root of the linked list, and tracks statistics */
+struct mem_zone {
+    struct mem_item *first;     /* pointer to first item in list, or NULL */
+    size_t total, highwater;    /* total allocations, and largest total */
+    size_t limit;               /* memory allocation limit, or 0 if no limit */
+    int notlifo, rogue;         /* counts of non-LIFO frees and rogue frees */
+};
+
+/* memory allocation routine to pass to zlib */
+local void *mem_alloc(void *mem, unsigned count, unsigned size)
+{
+    void *ptr;
+    struct mem_item *item;
+    struct mem_zone *zone = mem;
+    size_t len = count * (size_t)size;
+
+    /* induced allocation failure */
+    if (zone == NULL || (zone->limit && zone->total + len > zone->limit))
+        return NULL;
+
+    /* perform allocation using the standard library, fill memory with a
+       non-zero value to make sure that the code isn't depending on zeros */
+    ptr = malloc(len);
+    if (ptr == NULL)
+        return NULL;
+    memset(ptr, 0xa5, len);
+
+    /* create a new item for the list */
+    item = malloc(sizeof(struct mem_item));
+    if (item == NULL) {
+        free(ptr);
+        return NULL;
+    }
+    item->ptr = ptr;
+    item->size = len;
+
+    /* insert item at the beginning of the list */
+    item->next = zone->first;
+    zone->first = item;
+
+    /* update the statistics */
+    zone->total += item->size;
+    if (zone->total > zone->highwater)
+        zone->highwater = zone->total;
+
+    /* return the allocated memory */
+    return ptr;
+}
+
+/* memory free routine to pass to zlib */
+local void mem_free(void *mem, void *ptr)
+{
+    struct mem_item *item, *next;
+    struct mem_zone *zone = mem;
+
+    /* if no zone, just do a free */
+    if (zone == NULL) {
+        free(ptr);
+        return;
+    }
+
+    /* point next to the item that matches ptr, or NULL if not found -- remove
+       the item from the linked list if found */
+    next = zone->first;
+    if (next) {
+        if (next->ptr == ptr)
+            zone->first = next->next;   /* first one is it, remove from list */
+        else {
+            do {                        /* search the linked list */
+                item = next;
+                next = item->next;
+            } while (next != NULL && next->ptr != ptr);
+            if (next) {                 /* if found, remove from linked list */
+                item->next = next->next;
+                zone->notlifo++;        /* not a LIFO free */
+            }
+
+        }
+    }
+
+    /* if found, update the statistics and free the item */
+    if (next) {
+        zone->total -= next->size;
+        free(next);
+    }
+
+    /* if not found, update the rogue count */
+    else
+        zone->rogue++;
+
+    /* in any case, do the requested free with the standard library function */
+    free(ptr);
+}
+
+/* set up a controlled memory allocation space for monitoring, set the stream
+   parameters to the controlled routines, with opaque pointing to the space */
+local void mem_setup(z_stream *strm)
+{
+    struct mem_zone *zone;
+
+    zone = malloc(sizeof(struct mem_zone));
+    assert(zone != NULL);
+    zone->first = NULL;
+    zone->total = 0;
+    zone->highwater = 0;
+    zone->limit = 0;
+    zone->notlifo = 0;
+    zone->rogue = 0;
+    strm->opaque = zone;
+    strm->zalloc = mem_alloc;
+    strm->zfree = mem_free;
+}
+
+/* set a limit on the total memory allocation, or 0 to remove the limit */
+local void mem_limit(z_stream *strm, size_t limit)
+{
+    struct mem_zone *zone = strm->opaque;
+
+    zone->limit = limit;
+}
+
+/* show the current total requested allocations in bytes */
+local void mem_used(z_stream *strm, char *prefix)
+{
+    struct mem_zone *zone = strm->opaque;
+
+    fprintf(stderr, "%s: %lu allocated\n", prefix, zone->total);
+}
+
+/* show the high water allocation in bytes */
+local void mem_high(z_stream *strm, char *prefix)
+{
+    struct mem_zone *zone = strm->opaque;
+
+    fprintf(stderr, "%s: %lu high water mark\n", prefix, zone->highwater);
+}
+
+/* release the memory allocation zone -- if there are any surprises, notify */
+local void mem_done(z_stream *strm, char *prefix)
+{
+    int count = 0;
+    struct mem_item *item, *next;
+    struct mem_zone *zone = strm->opaque;
+
+    /* show high water mark */
+    mem_high(strm, prefix);
+
+    /* free leftover allocations and item structures, if any */
+    item = zone->first;
+    while (item != NULL) {
+        free(item->ptr);
+        next = item->next;
+        free(item);
+        item = next;
+        count++;
+    }
+
+    /* issue alerts about anything unexpected */
+    if (count || zone->total)
+        fprintf(stderr, "** %s: %lu bytes in %d blocks not freed\n",
+                prefix, zone->total, count);
+    if (zone->notlifo)
+        fprintf(stderr, "** %s: %d frees not LIFO\n", prefix, zone->notlifo);
+    if (zone->rogue)
+        fprintf(stderr, "** %s: %d frees not recognized\n",
+                prefix, zone->rogue);
+
+    /* free the zone and delete from the stream */
+    free(zone);
+    strm->opaque = Z_NULL;
+    strm->zalloc = Z_NULL;
+    strm->zfree = Z_NULL;
+}
+
+/* -- inflate test routines -- */
+
+/* Decode a hexadecimal string, set *len to length, in[] to the bytes.  This
+   decodes liberally, in that hex digits can be adjacent, in which case two in
+   a row writes a byte.  Or they can be delimited by any non-hex character,
+   where the delimiters are ignored except when a single hex digit is followed
+   by a delimiter, where that single digit writes a byte.  The returned data is
+   allocated and must eventually be freed.  NULL is returned if out of memory.
+   If the length is not needed, then len can be NULL. */
+local unsigned char *h2b(const char *hex, unsigned *len)
+{
+    unsigned char *in, *re;
+    unsigned next, val;
+
+    in = malloc((strlen(hex) + 1) >> 1);
+    if (in == NULL)
+        return NULL;
+    next = 0;
+    val = 1;
+    do {
+        if (*hex >= '0' && *hex <= '9')
+            val = (val << 4) + *hex - '0';
+        else if (*hex >= 'A' && *hex <= 'F')
+            val = (val << 4) + *hex - 'A' + 10;
+        else if (*hex >= 'a' && *hex <= 'f')
+            val = (val << 4) + *hex - 'a' + 10;
+        else if (val != 1 && val < 32)  /* one digit followed by delimiter */
+            val += 240;                 /* make it look like two digits */
+        if (val > 255) {                /* have two digits */
+            in[next++] = val & 0xff;    /* save the decoded byte */
+            val = 1;                    /* start over */
+        }
+    } while (*hex++);       /* go through the loop with the terminating null */
+    if (len != NULL)
+        *len = next;
+    re = realloc(in, next);
+    return re == NULL ? in : re;
+}
+
+/* generic inflate() run, where hex is the hexadecimal input data, what is the
+   text to include in an error message, step is how much input data to feed
+   inflate() on each call, or zero to feed it all, win is the window bits
+   parameter to inflateInit2(), len is the size of the output buffer, and err
+   is the error code expected from the first inflate() call (the second
+   inflate() call is expected to return Z_STREAM_END).  If win is 47, then
+   header information is collected with inflateGetHeader().  If a zlib stream
+   is looking for a dictionary, then an empty dictionary is provided.
+   inflate() is run until all of the input data is consumed. */
+local void inf(char *hex, char *what, unsigned step, int win, unsigned len,
+               int err)
+{
+    int ret;
+    unsigned have;
+    unsigned char *in, *out;
+    z_stream strm, copy;
+    gz_header head;
+
+    mem_setup(&strm);
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit2(&strm, win);
+    if (ret != Z_OK) {
+        mem_done(&strm, what);
+        return;
+    }
+    out = malloc(len);                          assert(out != NULL);
+    if (win == 47) {
+        head.extra = out;
+        head.extra_max = len;
+        head.name = out;
+        head.name_max = len;
+        head.comment = out;
+        head.comm_max = len;
+        ret = inflateGetHeader(&strm, &head);   assert(ret == Z_OK);
+    }
+    in = h2b(hex, &have);                       assert(in != NULL);
+    if (step == 0 || step > have)
+        step = have;
+    strm.avail_in = step;
+    have -= step;
+    strm.next_in = in;
+    do {
+        strm.avail_out = len;
+        strm.next_out = out;
+        ret = inflate(&strm, Z_NO_FLUSH);       assert(err == 9 || ret == err);
+        if (ret != Z_OK && ret != Z_BUF_ERROR && ret != Z_NEED_DICT)
+            break;
+        if (ret == Z_NEED_DICT) {
+            ret = inflateSetDictionary(&strm, in, 1);
+                                                assert(ret == Z_DATA_ERROR);
+            mem_limit(&strm, 1);
+            ret = inflateSetDictionary(&strm, out, 0);
+                                                assert(ret == Z_MEM_ERROR);
+            mem_limit(&strm, 0);
+            ((struct inflate_state *)strm.state)->mode = DICT;
+            ret = inflateSetDictionary(&strm, out, 0);
+                                                assert(ret == Z_OK);
+            ret = inflate(&strm, Z_NO_FLUSH);   assert(ret == Z_BUF_ERROR);
+        }
+        ret = inflateCopy(&copy, &strm);        assert(ret == Z_OK);
+        ret = inflateEnd(&copy);                assert(ret == Z_OK);
+        err = 9;                        /* don't care next time around */
+        have += strm.avail_in;
+        strm.avail_in = step > have ? have : step;
+        have -= strm.avail_in;
+    } while (strm.avail_in);
+    free(in);
+    free(out);
+    ret = inflateReset2(&strm, -8);             assert(ret == Z_OK);
+    ret = inflateEnd(&strm);                    assert(ret == Z_OK);
+    mem_done(&strm, what);
+}
+
+/* cover all of the lines in inflate.c up to inflate() */
+local void cover_support(void)
+{
+    int ret;
+    z_stream strm;
+
+    mem_setup(&strm);
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit(&strm);                   assert(ret == Z_OK);
+    mem_used(&strm, "inflate init");
+    ret = inflatePrime(&strm, 5, 31);           assert(ret == Z_OK);
+    ret = inflatePrime(&strm, -1, 0);           assert(ret == Z_OK);
+    ret = inflateSetDictionary(&strm, Z_NULL, 0);
+                                                assert(ret == Z_STREAM_ERROR);
+    ret = inflateEnd(&strm);                    assert(ret == Z_OK);
+    mem_done(&strm, "prime");
+
+    inf("63 0", "force window allocation", 0, -15, 1, Z_OK);
+    inf("63 18 5", "force window replacement", 0, -8, 259, Z_OK);
+    inf("63 18 68 30 d0 0 0", "force split window update", 4, -8, 259, Z_OK);
+    inf("3 0", "use fixed blocks", 0, -15, 1, Z_STREAM_END);
+    inf("", "bad window size", 0, 1, 0, Z_STREAM_ERROR);
+
+    mem_setup(&strm);
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit_(&strm, "!", (int)sizeof(z_stream));
+                                                assert(ret == Z_VERSION_ERROR);
+    mem_done(&strm, "wrong version");
+
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit(&strm);                   assert(ret == Z_OK);
+    ret = inflateEnd(&strm);                    assert(ret == Z_OK);
+    fputs("inflate built-in memory routines\n", stderr);
+}
+
+/* cover all inflate() header and trailer cases and code after inflate() */
+local void cover_wrap(void)
+{
+    int ret;
+    z_stream strm, copy;
+    unsigned char dict[257];
+
+    ret = inflate(Z_NULL, 0);                   assert(ret == Z_STREAM_ERROR);
+    ret = inflateEnd(Z_NULL);                   assert(ret == Z_STREAM_ERROR);
+    ret = inflateCopy(Z_NULL, Z_NULL);          assert(ret == Z_STREAM_ERROR);
+    fputs("inflate bad parameters\n", stderr);
+
+    inf("1f 8b 0 0", "bad gzip method", 0, 31, 0, Z_DATA_ERROR);
+    inf("1f 8b 8 80", "bad gzip flags", 0, 31, 0, Z_DATA_ERROR);
+    inf("77 85", "bad zlib method", 0, 15, 0, Z_DATA_ERROR);
+    inf("8 99", "set window size from header", 0, 0, 0, Z_OK);
+    inf("78 9c", "bad zlib window size", 0, 8, 0, Z_DATA_ERROR);
+    inf("78 9c 63 0 0 0 1 0 1", "check adler32", 0, 15, 1, Z_STREAM_END);
+    inf("1f 8b 8 1e 0 0 0 0 0 0 1 0 0 0 0 0 0", "bad header crc", 0, 47, 1,
+        Z_DATA_ERROR);
+    inf("1f 8b 8 2 0 0 0 0 0 0 1d 26 3 0 0 0 0 0 0 0 0 0", "check gzip length",
+        0, 47, 0, Z_STREAM_END);
+    inf("78 90", "bad zlib header check", 0, 47, 0, Z_DATA_ERROR);
+    inf("8 b8 0 0 0 1", "need dictionary", 0, 8, 0, Z_NEED_DICT);
+    inf("78 9c 63 0", "compute adler32", 0, 15, 1, Z_OK);
+
+    mem_setup(&strm);
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit2(&strm, -8);
+    strm.avail_in = 2;
+    strm.next_in = (void *)"\x63";
+    strm.avail_out = 1;
+    strm.next_out = (void *)&ret;
+    mem_limit(&strm, 1);
+    ret = inflate(&strm, Z_NO_FLUSH);           assert(ret == Z_MEM_ERROR);
+    ret = inflate(&strm, Z_NO_FLUSH);           assert(ret == Z_MEM_ERROR);
+    mem_limit(&strm, 0);
+    memset(dict, 0, 257);
+    ret = inflateSetDictionary(&strm, dict, 257);
+                                                assert(ret == Z_OK);
+    mem_limit(&strm, (sizeof(struct inflate_state) << 1) + 256);
+    ret = inflatePrime(&strm, 16, 0);           assert(ret == Z_OK);
+    strm.avail_in = 2;
+    strm.next_in = (void *)"\x80";
+    ret = inflateSync(&strm);                   assert(ret == Z_DATA_ERROR);
+    ret = inflate(&strm, Z_NO_FLUSH);           assert(ret == Z_STREAM_ERROR);
+    strm.avail_in = 4;
+    strm.next_in = (void *)"\0\0\xff\xff";
+    ret = inflateSync(&strm);                   assert(ret == Z_OK);
+    (void)inflateSyncPoint(&strm);
+    ret = inflateCopy(&copy, &strm);            assert(ret == Z_MEM_ERROR);
+    mem_limit(&strm, 0);
+    ret = inflateUndermine(&strm, 1);           assert(ret == Z_DATA_ERROR);
+    (void)inflateMark(&strm);
+    ret = inflateEnd(&strm);                    assert(ret == Z_OK);
+    mem_done(&strm, "miscellaneous, force memory errors");
+}
+
+/* input and output functions for inflateBack() */
+local unsigned pull(void *desc, unsigned char **buf)
+{
+    static unsigned int next = 0;
+    static unsigned char dat[] = {0x63, 0, 2, 0};
+    struct inflate_state *state;
+
+    if (desc == Z_NULL) {
+        next = 0;
+        return 0;   /* no input (already provided at next_in) */
+    }
+    state = (void *)((z_stream *)desc)->state;
+    if (state != Z_NULL)
+        state->mode = SYNC;     /* force an otherwise impossible situation */
+    return next < sizeof(dat) ? (*buf = dat + next++, 1) : 0;
+}
+
+local int push(void *desc, unsigned char *buf, unsigned len)
+{
+    (void)buf;
+    (void)len;
+    return desc != Z_NULL;      /* force error if desc not null */
+}
+
+/* cover inflateBack() up to common deflate data cases and after those */
+local void cover_back(void)
+{
+    int ret;
+    z_stream strm;
+    unsigned char win[32768];
+
+    ret = inflateBackInit_(Z_NULL, 0, win, 0, 0);
+                                                assert(ret == Z_VERSION_ERROR);
+    ret = inflateBackInit(Z_NULL, 0, win);      assert(ret == Z_STREAM_ERROR);
+    ret = inflateBack(Z_NULL, Z_NULL, Z_NULL, Z_NULL, Z_NULL);
+                                                assert(ret == Z_STREAM_ERROR);
+    ret = inflateBackEnd(Z_NULL);               assert(ret == Z_STREAM_ERROR);
+    fputs("inflateBack bad parameters\n", stderr);
+
+    mem_setup(&strm);
+    ret = inflateBackInit(&strm, 15, win);      assert(ret == Z_OK);
+    strm.avail_in = 2;
+    strm.next_in = (void *)"\x03";
+    ret = inflateBack(&strm, pull, Z_NULL, push, Z_NULL);
+                                                assert(ret == Z_STREAM_END);
+        /* force output error */
+    strm.avail_in = 3;
+    strm.next_in = (void *)"\x63\x00";
+    ret = inflateBack(&strm, pull, Z_NULL, push, &strm);
+                                                assert(ret == Z_BUF_ERROR);
+        /* force mode error by mucking with state */
+    ret = inflateBack(&strm, pull, &strm, push, Z_NULL);
+                                                assert(ret == Z_STREAM_ERROR);
+    ret = inflateBackEnd(&strm);                assert(ret == Z_OK);
+    mem_done(&strm, "inflateBack bad state");
+
+    ret = inflateBackInit(&strm, 15, win);      assert(ret == Z_OK);
+    ret = inflateBackEnd(&strm);                assert(ret == Z_OK);
+    fputs("inflateBack built-in memory routines\n", stderr);
+}
+
+/* do a raw inflate of data in hexadecimal with both inflate and inflateBack */
+local int try(char *hex, char *id, int err)
+{
+    int ret;
+    unsigned len, size;
+    unsigned char *in, *out, *win;
+    char *prefix;
+    z_stream strm;
+
+    /* convert to hex */
+    in = h2b(hex, &len);
+    assert(in != NULL);
+
+    /* allocate work areas */
+    size = len << 3;
+    out = malloc(size);
+    assert(out != NULL);
+    win = malloc(32768);
+    assert(win != NULL);
+    prefix = malloc(strlen(id) + 6);
+    assert(prefix != NULL);
+
+    /* first with inflate */
+    strcpy(prefix, id);
+    strcat(prefix, "-late");
+    mem_setup(&strm);
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit2(&strm, err < 0 ? 47 : -15);
+    assert(ret == Z_OK);
+    strm.avail_in = len;
+    strm.next_in = in;
+    do {
+        strm.avail_out = size;
+        strm.next_out = out;
+        ret = inflate(&strm, Z_TREES);
+        assert(ret != Z_STREAM_ERROR && ret != Z_MEM_ERROR);
+        if (ret == Z_DATA_ERROR || ret == Z_NEED_DICT)
+            break;
+    } while (strm.avail_in || strm.avail_out == 0);
+    if (err) {
+        assert(ret == Z_DATA_ERROR);
+        assert(strcmp(id, strm.msg) == 0);
+    }
+    inflateEnd(&strm);
+    mem_done(&strm, prefix);
+
+    /* then with inflateBack */
+    if (err >= 0) {
+        strcpy(prefix, id);
+        strcat(prefix, "-back");
+        mem_setup(&strm);
+        ret = inflateBackInit(&strm, 15, win);
+        assert(ret == Z_OK);
+        strm.avail_in = len;
+        strm.next_in = in;
+        ret = inflateBack(&strm, pull, Z_NULL, push, Z_NULL);
+        assert(ret != Z_STREAM_ERROR);
+        if (err) {
+            assert(ret == Z_DATA_ERROR);
+            assert(strcmp(id, strm.msg) == 0);
+        }
+        inflateBackEnd(&strm);
+        mem_done(&strm, prefix);
+    }
+
+    /* clean up */
+    free(prefix);
+    free(win);
+    free(out);
+    free(in);
+    return ret;
+}
+
+/* cover deflate data cases in both inflate() and inflateBack() */
+local void cover_inflate(void)
+{
+    try("0 0 0 0 0", "invalid stored block lengths", 1);
+    try("3 0", "fixed", 0);
+    try("6", "invalid block type", 1);
+    try("1 1 0 fe ff 0", "stored", 0);
+    try("fc 0 0", "too many length or distance symbols", 1);
+    try("4 0 fe ff", "invalid code lengths set", 1);
+    try("4 0 24 49 0", "invalid bit length repeat", 1);
+    try("4 0 24 e9 ff ff", "invalid bit length repeat", 1);
+    try("4 0 24 e9 ff 6d", "invalid code -- missing end-of-block", 1);
+    try("4 80 49 92 24 49 92 24 71 ff ff 93 11 0",
+        "invalid literal/lengths set", 1);
+    try("4 80 49 92 24 49 92 24 f b4 ff ff c3 84", "invalid distances set", 1);
+    try("4 c0 81 8 0 0 0 0 20 7f eb b 0 0", "invalid literal/length code", 1);
+    try("2 7e ff ff", "invalid distance code", 1);
+    try("c c0 81 0 0 0 0 0 90 ff 6b 4 0", "invalid distance too far back", 1);
+
+    /* also trailer mismatch just in inflate() */
+    try("1f 8b 8 0 0 0 0 0 0 0 3 0 0 0 0 1", "incorrect data check", -1);
+    try("1f 8b 8 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 1",
+        "incorrect length check", -1);
+    try("5 c0 21 d 0 0 0 80 b0 fe 6d 2f 91 6c", "pull 17", 0);
+    try("5 e0 81 91 24 cb b2 2c 49 e2 f 2e 8b 9a 47 56 9f fb fe ec d2 ff 1f",
+        "long code", 0);
+    try("ed c0 1 1 0 0 0 40 20 ff 57 1b 42 2c 4f", "length extra", 0);
+    try("ed cf c1 b1 2c 47 10 c4 30 fa 6f 35 1d 1 82 59 3d fb be 2e 2a fc f c",
+        "long distance and extra", 0);
+    try("ed c0 81 0 0 0 0 80 a0 fd a9 17 a9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 "
+        "0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6", "window end", 0);
+    inf("2 8 20 80 0 3 0", "inflate_fast TYPE return", 0, -15, 258,
+        Z_STREAM_END);
+    inf("63 18 5 40 c 0", "window wrap", 3, -8, 300, Z_OK);
+}
+
+/* cover remaining lines in inftrees.c */
+local void cover_trees(void)
+{
+    int ret;
+    unsigned bits;
+    unsigned short lens[16], work[16];
+    code *next, table[ENOUGH_DISTS];
+
+    /* we need to call inflate_table() directly in order to manifest not-
+       enough errors, since zlib insures that enough is always enough */
+    for (bits = 0; bits < 15; bits++)
+        lens[bits] = (unsigned short)(bits + 1);
+    lens[15] = 15;
+    next = table;
+    bits = 15;
+    ret = inflate_table(DISTS, lens, 16, &next, &bits, work);
+                                                assert(ret == 1);
+    next = table;
+    bits = 1;
+    ret = inflate_table(DISTS, lens, 16, &next, &bits, work);
+                                                assert(ret == 1);
+    fputs("inflate_table not enough errors\n", stderr);
+}
+
+/* cover remaining inffast.c decoding and window copying */
+local void cover_fast(void)
+{
+    inf("e5 e0 81 ad 6d cb b2 2c c9 01 1e 59 63 ae 7d ee fb 4d fd b5 35 41 68"
+        " ff 7f 0f 0 0 0", "fast length extra bits", 0, -8, 258, Z_DATA_ERROR);
+    inf("25 fd 81 b5 6d 59 b6 6a 49 ea af 35 6 34 eb 8c b9 f6 b9 1e ef 67 49"
+        " 50 fe ff ff 3f 0 0", "fast distance extra bits", 0, -8, 258,
+        Z_DATA_ERROR);
+    inf("3 7e 0 0 0 0 0", "fast invalid distance code", 0, -8, 258,
+        Z_DATA_ERROR);
+    inf("1b 7 0 0 0 0 0", "fast invalid literal/length code", 0, -8, 258,
+        Z_DATA_ERROR);
+    inf("d c7 1 ae eb 38 c 4 41 a0 87 72 de df fb 1f b8 36 b1 38 5d ff ff 0",
+        "fast 2nd level codes and too far back", 0, -8, 258, Z_DATA_ERROR);
+    inf("63 18 5 8c 10 8 0 0 0 0", "very common case", 0, -8, 259, Z_OK);
+    inf("63 60 60 18 c9 0 8 18 18 18 26 c0 28 0 29 0 0 0",
+        "contiguous and wrap around window", 6, -8, 259, Z_OK);
+    inf("63 0 3 0 0 0 0 0", "copy direct from output", 0, -8, 259,
+        Z_STREAM_END);
+}
+
+int main(void)
+{
+    fprintf(stderr, "%s\n", zlibVersion());
+    cover_support();
+    cover_wrap();
+    cover_back();
+    cover_inflate();
+    cover_trees();
+    cover_fast();
+    return 0;
+}
diff --git a/compat/zlib/test/minigzip.c b/compat/zlib/test/minigzip.c
new file mode 100644
index 0000000..134e10e
--- /dev/null
+++ b/compat/zlib/test/minigzip.c
@@ -0,0 +1,579 @@
+/* minigzip.c -- simulate gzip using the zlib compression library
+ * Copyright (C) 1995-2006, 2010, 2011, 2016 Jean-loup Gailly
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/*
+ * minigzip is a minimal implementation of the gzip utility. This is
+ * only an example of using zlib and isn't meant to replace the
+ * full-featured gzip. No attempt is made to deal with file systems
+ * limiting names to 14 or 8+3 characters, etc... Error checking is
+ * very limited. So use minigzip only for testing; use gzip for the
+ * real thing. On MSDOS, use only on file names without extension
+ * or in pipe mode.
+ */
+
+/* @(#) $Id$ */
+
+#include "zlib.h"
+#include <stdio.h>
+
+#ifdef STDC
+#  include <string.h>
+#  include <stdlib.h>
+#endif
+
+#ifdef USE_MMAP
+#  include <sys/types.h>
+#  include <sys/mman.h>
+#  include <sys/stat.h>
+#endif
+
+#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
+#  include <fcntl.h>
+#  include <io.h>
+#  ifdef UNDER_CE
+#    include <stdlib.h>
+#  endif
+#  define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
+#else
+#  define SET_BINARY_MODE(file)
+#endif
+
+#if defined(_MSC_VER) && _MSC_VER < 1900
+#  define snprintf _snprintf
+#endif
+
+#ifdef VMS
+#  define unlink delete
+#  define GZ_SUFFIX "-gz"
+#endif
+#ifdef RISCOS
+#  define unlink remove
+#  define GZ_SUFFIX "-gz"
+#  define fileno(file) file->__file
+#endif
+#if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
+#  include <unix.h> /* for fileno */
+#endif
+
+#if !defined(Z_HAVE_UNISTD_H) && !defined(_LARGEFILE64_SOURCE)
+#ifndef WIN32 /* unlink already in stdio.h for WIN32 */
+  extern int unlink(const char *);
+#endif
+#endif
+
+#if defined(UNDER_CE)
+#  include <windows.h>
+#  define perror(s) pwinerror(s)
+
+/* Map the Windows error number in ERROR to a locale-dependent error
+   message string and return a pointer to it.  Typically, the values
+   for ERROR come from GetLastError.
+
+   The string pointed to shall not be modified by the application,
+   but may be overwritten by a subsequent call to strwinerror
+
+   The strwinerror function does not change the current setting
+   of GetLastError.  */
+
+static char *strwinerror (error)
+     DWORD error;
+{
+    static char buf[1024];
+
+    wchar_t *msgbuf;
+    DWORD lasterr = GetLastError();
+    DWORD chars = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM
+        | FORMAT_MESSAGE_ALLOCATE_BUFFER,
+        NULL,
+        error,
+        0, /* Default language */
+        (LPVOID)&msgbuf,
+        0,
+        NULL);
+    if (chars != 0) {
+        /* If there is an \r\n appended, zap it.  */
+        if (chars >= 2
+            && msgbuf[chars - 2] == '\r' && msgbuf[chars - 1] == '\n') {
+            chars -= 2;
+            msgbuf[chars] = 0;
+        }
+
+        if (chars > sizeof (buf) - 1) {
+            chars = sizeof (buf) - 1;
+            msgbuf[chars] = 0;
+        }
+
+        wcstombs(buf, msgbuf, chars + 1);
+        LocalFree(msgbuf);
+    }
+    else {
+        sprintf(buf, "unknown win32 error (%ld)", error);
+    }
+
+    SetLastError(lasterr);
+    return buf;
+}
+
+static void pwinerror (s)
+    const char *s;
+{
+    if (s && *s)
+        fprintf(stderr, "%s: %s\n", s, strwinerror(GetLastError ()));
+    else
+        fprintf(stderr, "%s\n", strwinerror(GetLastError ()));
+}
+
+#endif /* UNDER_CE */
+
+#ifndef GZ_SUFFIX
+#  define GZ_SUFFIX ".gz"
+#endif
+#define SUFFIX_LEN (sizeof(GZ_SUFFIX)-1)
+
+#define BUFLEN      16384
+#define MAX_NAME_LEN 1024
+
+#ifdef MAXSEG_64K
+#  define local static
+   /* Needed for systems with limitation on stack size. */
+#else
+#  define local
+#endif
+
+#ifdef Z_SOLO
+/* for Z_SOLO, create simplified gz* functions using deflate and inflate */
+
+#if defined(Z_HAVE_UNISTD_H) || defined(Z_LARGE)
+#  include <unistd.h>       /* for unlink() */
+#endif
+
+static void *myalloc(void *q, unsigned n, unsigned m) {
+    (void)q;
+    return calloc(n, m);
+}
+
+static void myfree(void *q, void *p) {
+    (void)q;
+    free(p);
+}
+
+typedef struct gzFile_s {
+    FILE *file;
+    int write;
+    int err;
+    char *msg;
+    z_stream strm;
+} *gzFile;
+
+static gzFile gz_open(const char *path, int fd, const char *mode) {
+    gzFile gz;
+    int ret;
+
+    gz = malloc(sizeof(struct gzFile_s));
+    if (gz == NULL)
+        return NULL;
+    gz->write = strchr(mode, 'w') != NULL;
+    gz->strm.zalloc = myalloc;
+    gz->strm.zfree = myfree;
+    gz->strm.opaque = Z_NULL;
+    if (gz->write)
+        ret = deflateInit2(&(gz->strm), -1, 8, 15 + 16, 8, 0);
+    else {
+        gz->strm.next_in = 0;
+        gz->strm.avail_in = Z_NULL;
+        ret = inflateInit2(&(gz->strm), 15 + 16);
+    }
+    if (ret != Z_OK) {
+        free(gz);
+        return NULL;
+    }
+    gz->file = path == NULL ? fdopen(fd, gz->write ? "wb" : "rb") :
+                              fopen(path, gz->write ? "wb" : "rb");
+    if (gz->file == NULL) {
+        gz->write ? deflateEnd(&(gz->strm)) : inflateEnd(&(gz->strm));
+        free(gz);
+        return NULL;
+    }
+    gz->err = 0;
+    gz->msg = "";
+    return gz;
+}
+
+static gzFile gzopen(const char *path, const char *mode) {
+    return gz_open(path, -1, mode);
+}
+
+static gzFile gzdopen(int fd, const char *mode) {
+    return gz_open(NULL, fd, mode);
+}
+
+static int gzwrite(gzFile gz, const void *buf, unsigned len) {
+    z_stream *strm;
+    unsigned char out[BUFLEN];
+
+    if (gz == NULL || !gz->write)
+        return 0;
+    strm = &(gz->strm);
+    strm->next_in = (void *)buf;
+    strm->avail_in = len;
+    do {
+        strm->next_out = out;
+        strm->avail_out = BUFLEN;
+        (void)deflate(strm, Z_NO_FLUSH);
+        fwrite(out, 1, BUFLEN - strm->avail_out, gz->file);
+    } while (strm->avail_out == 0);
+    return len;
+}
+
+static int gzread(gzFile gz, void *buf, unsigned len) {
+    int ret;
+    unsigned got;
+    unsigned char in[1];
+    z_stream *strm;
+
+    if (gz == NULL || gz->write)
+        return 0;
+    if (gz->err)
+        return 0;
+    strm = &(gz->strm);
+    strm->next_out = (void *)buf;
+    strm->avail_out = len;
+    do {
+        got = fread(in, 1, 1, gz->file);
+        if (got == 0)
+            break;
+        strm->next_in = in;
+        strm->avail_in = 1;
+        ret = inflate(strm, Z_NO_FLUSH);
+        if (ret == Z_DATA_ERROR) {
+            gz->err = Z_DATA_ERROR;
+            gz->msg = strm->msg;
+            return 0;
+        }
+        if (ret == Z_STREAM_END)
+            inflateReset(strm);
+    } while (strm->avail_out);
+    return len - strm->avail_out;
+}
+
+static int gzclose(gzFile gz) {
+    z_stream *strm;
+    unsigned char out[BUFLEN];
+
+    if (gz == NULL)
+        return Z_STREAM_ERROR;
+    strm = &(gz->strm);
+    if (gz->write) {
+        strm->next_in = Z_NULL;
+        strm->avail_in = 0;
+        do {
+            strm->next_out = out;
+            strm->avail_out = BUFLEN;
+            (void)deflate(strm, Z_FINISH);
+            fwrite(out, 1, BUFLEN - strm->avail_out, gz->file);
+        } while (strm->avail_out == 0);
+        deflateEnd(strm);
+    }
+    else
+        inflateEnd(strm);
+    fclose(gz->file);
+    free(gz);
+    return Z_OK;
+}
+
+static const char *gzerror(gzFile gz, int *err) {
+    *err = gz->err;
+    return gz->msg;
+}
+
+#endif
+
+static char *prog;
+
+/* ===========================================================================
+ * Display error message and exit
+ */
+static void error(const char *msg) {
+    fprintf(stderr, "%s: %s\n", prog, msg);
+    exit(1);
+}
+
+#ifdef USE_MMAP /* MMAP version, Miguel Albrecht <malbrech@eso.org> */
+
+/* Try compressing the input file at once using mmap. Return Z_OK if
+ * success, Z_ERRNO otherwise.
+ */
+static int gz_compress_mmap(FILE *in, gzFile out) {
+    int len;
+    int err;
+    int ifd = fileno(in);
+    caddr_t buf;    /* mmap'ed buffer for the entire input file */
+    off_t buf_len;  /* length of the input file */
+    struct stat sb;
+
+    /* Determine the size of the file, needed for mmap: */
+    if (fstat(ifd, &sb) < 0) return Z_ERRNO;
+    buf_len = sb.st_size;
+    if (buf_len <= 0) return Z_ERRNO;
+
+    /* Now do the actual mmap: */
+    buf = mmap((caddr_t) 0, buf_len, PROT_READ, MAP_SHARED, ifd, (off_t)0);
+    if (buf == (caddr_t)(-1)) return Z_ERRNO;
+
+    /* Compress the whole file at once: */
+    len = gzwrite(out, (char *)buf, (unsigned)buf_len);
+
+    if (len != (int)buf_len) error(gzerror(out, &err));
+
+    munmap(buf, buf_len);
+    fclose(in);
+    if (gzclose(out) != Z_OK) error("failed gzclose");
+    return Z_OK;
+}
+#endif /* USE_MMAP */
+
+/* ===========================================================================
+ * Compress input to output then close both files.
+ */
+
+static void gz_compress(FILE *in, gzFile out) {
+    local char buf[BUFLEN];
+    int len;
+    int err;
+
+#ifdef USE_MMAP
+    /* Try first compressing with mmap. If mmap fails (minigzip used in a
+     * pipe), use the normal fread loop.
+     */
+    if (gz_compress_mmap(in, out) == Z_OK) return;
+#endif
+    for (;;) {
+        len = (int)fread(buf, 1, sizeof(buf), in);
+        if (ferror(in)) {
+            perror("fread");
+            exit(1);
+        }
+        if (len == 0) break;
+
+        if (gzwrite(out, buf, (unsigned)len) != len) error(gzerror(out, &err));
+    }
+    fclose(in);
+    if (gzclose(out) != Z_OK) error("failed gzclose");
+}
+
+/* ===========================================================================
+ * Uncompress input to output then close both files.
+ */
+static void gz_uncompress(gzFile in, FILE *out) {
+    local char buf[BUFLEN];
+    int len;
+    int err;
+
+    for (;;) {
+        len = gzread(in, buf, sizeof(buf));
+        if (len < 0) error (gzerror(in, &err));
+        if (len == 0) break;
+
+        if ((int)fwrite(buf, 1, (unsigned)len, out) != len) {
+            error("failed fwrite");
+        }
+    }
+    if (fclose(out)) error("failed fclose");
+
+    if (gzclose(in) != Z_OK) error("failed gzclose");
+}
+
+
+/* ===========================================================================
+ * Compress the given file: create a corresponding .gz file and remove the
+ * original.
+ */
+static void file_compress(char *file, char *mode) {
+    local char outfile[MAX_NAME_LEN];
+    FILE  *in;
+    gzFile out;
+
+    if (strlen(file) + strlen(GZ_SUFFIX) >= sizeof(outfile)) {
+        fprintf(stderr, "%s: filename too long\n", prog);
+        exit(1);
+    }
+
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+    snprintf(outfile, sizeof(outfile), "%s%s", file, GZ_SUFFIX);
+#else
+    strcpy(outfile, file);
+    strcat(outfile, GZ_SUFFIX);
+#endif
+
+    in = fopen(file, "rb");
+    if (in == NULL) {
+        perror(file);
+        exit(1);
+    }
+    out = gzopen(outfile, mode);
+    if (out == NULL) {
+        fprintf(stderr, "%s: can't gzopen %s\n", prog, outfile);
+        exit(1);
+    }
+    gz_compress(in, out);
+
+    unlink(file);
+}
+
+
+/* ===========================================================================
+ * Uncompress the given file and remove the original.
+ */
+static void file_uncompress(char *file) {
+    local char buf[MAX_NAME_LEN];
+    char *infile, *outfile;
+    FILE  *out;
+    gzFile in;
+    z_size_t len = strlen(file);
+
+    if (len + strlen(GZ_SUFFIX) >= sizeof(buf)) {
+        fprintf(stderr, "%s: filename too long\n", prog);
+        exit(1);
+    }
+
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+    snprintf(buf, sizeof(buf), "%s", file);
+#else
+    strcpy(buf, file);
+#endif
+
+    if (len > SUFFIX_LEN && strcmp(file+len-SUFFIX_LEN, GZ_SUFFIX) == 0) {
+        infile = file;
+        outfile = buf;
+        outfile[len-3] = '\0';
+    } else {
+        outfile = file;
+        infile = buf;
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+        snprintf(buf + len, sizeof(buf) - len, "%s", GZ_SUFFIX);
+#else
+        strcat(infile, GZ_SUFFIX);
+#endif
+    }
+    in = gzopen(infile, "rb");
+    if (in == NULL) {
+        fprintf(stderr, "%s: can't gzopen %s\n", prog, infile);
+        exit(1);
+    }
+    out = fopen(outfile, "wb");
+    if (out == NULL) {
+        perror(file);
+        exit(1);
+    }
+
+    gz_uncompress(in, out);
+
+    unlink(infile);
+}
+
+
+/* ===========================================================================
+ * Usage:  minigzip [-c] [-d] [-f] [-h] [-r] [-1 to -9] [files...]
+ *   -c : write to standard output
+ *   -d : decompress
+ *   -f : compress with Z_FILTERED
+ *   -h : compress with Z_HUFFMAN_ONLY
+ *   -r : compress with Z_RLE
+ *   -1 to -9 : compression level
+ */
+
+int main(int argc, char *argv[]) {
+    int copyout = 0;
+    int uncompr = 0;
+    gzFile file;
+    char *bname, outmode[20];
+
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+    snprintf(outmode, sizeof(outmode), "%s", "wb6 ");
+#else
+    strcpy(outmode, "wb6 ");
+#endif
+
+    prog = argv[0];
+    bname = strrchr(argv[0], '/');
+    if (bname)
+      bname++;
+    else
+      bname = argv[0];
+    argc--, argv++;
+
+    if (!strcmp(bname, "gunzip"))
+      uncompr = 1;
+    else if (!strcmp(bname, "zcat"))
+      copyout = uncompr = 1;
+
+    while (argc > 0) {
+      if (strcmp(*argv, "-c") == 0)
+        copyout = 1;
+      else if (strcmp(*argv, "-d") == 0)
+        uncompr = 1;
+      else if (strcmp(*argv, "-f") == 0)
+        outmode[3] = 'f';
+      else if (strcmp(*argv, "-h") == 0)
+        outmode[3] = 'h';
+      else if (strcmp(*argv, "-r") == 0)
+        outmode[3] = 'R';
+      else if ((*argv)[0] == '-' && (*argv)[1] >= '1' && (*argv)[1] <= '9' &&
+               (*argv)[2] == 0)
+        outmode[2] = (*argv)[1];
+      else
+        break;
+      argc--, argv++;
+    }
+    if (outmode[3] == ' ')
+        outmode[3] = 0;
+    if (argc == 0) {
+        SET_BINARY_MODE(stdin);
+        SET_BINARY_MODE(stdout);
+        if (uncompr) {
+            file = gzdopen(fileno(stdin), "rb");
+            if (file == NULL) error("can't gzdopen stdin");
+            gz_uncompress(file, stdout);
+        } else {
+            file = gzdopen(fileno(stdout), outmode);
+            if (file == NULL) error("can't gzdopen stdout");
+            gz_compress(stdin, file);
+        }
+    } else {
+        if (copyout) {
+            SET_BINARY_MODE(stdout);
+        }
+        do {
+            if (uncompr) {
+                if (copyout) {
+                    file = gzopen(*argv, "rb");
+                    if (file == NULL)
+                        fprintf(stderr, "%s: can't gzopen %s\n", prog, *argv);
+                    else
+                        gz_uncompress(file, stdout);
+                } else {
+                    file_uncompress(*argv);
+                }
+            } else {
+                if (copyout) {
+                    FILE * in = fopen(*argv, "rb");
+
+                    if (in == NULL) {
+                        perror(*argv);
+                    } else {
+                        file = gzdopen(fileno(stdout), outmode);
+                        if (file == NULL) error("can't gzdopen stdout");
+
+                        gz_compress(in, file);
+                    }
+
+                } else {
+                    file_compress(*argv, outmode);
+                }
+            }
+        } while (argv++, --argc);
+    }
+    return 0;
+}
diff --git a/compat/zlib/treebuild.xml b/compat/zlib/treebuild.xml
new file mode 100644
index 0000000..930b00b
--- /dev/null
+++ b/compat/zlib/treebuild.xml
@@ -0,0 +1,116 @@
+<?xml version="1.0" ?>
+<package name="zlib" version="1.3.1">
+    <library name="zlib" dlversion="1.3.1" dlname="z">
+	<property name="description"> zip compression library </property>
+	<property name="include-target-dir" value="$(@PACKAGE/install-includedir)" />
+
+	<!-- fixme: not implemented yet -->
+	<property name="compiler/c/inline" value="yes" />
+
+	<include-file name="zlib.h" scope="public" mode="644" />
+	<include-file name="zconf.h" scope="public" mode="644" />
+
+	<source name="adler32.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	</source>
+	<source name="compress.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	</source>
+	<source name="crc32.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="crc32.h" />
+	</source>
+	<source name="gzclose.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="gzguts.h" />
+	</source>
+	<source name="gzlib.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="gzguts.h" />
+	</source>
+	<source name="gzread.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="gzguts.h" />
+	</source>
+	<source name="gzwrite.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="gzguts.h" />
+	</source>
+	<source name="uncompr.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	</source>
+	<source name="deflate.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="zutil.h" />
+	    <depend name="deflate.h" />
+	</source>
+	<source name="trees.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="zutil.h" />
+	    <depend name="deflate.h" />
+	    <depend name="trees.h" />
+	</source>
+	<source name="zutil.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="zutil.h" />
+	</source>
+	<source name="inflate.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="zutil.h" />
+	    <depend name="inftrees.h" />
+	    <depend name="inflate.h" />
+	    <depend name="inffast.h" />
+	</source>
+	<source name="infback.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="zutil.h" />
+	    <depend name="inftrees.h" />
+	    <depend name="inflate.h" />
+	    <depend name="inffast.h" />
+	</source>
+	<source name="inftrees.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="zutil.h" />
+	    <depend name="inftrees.h" />
+	</source>
+	<source name="inffast.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="zutil.h" />
+	    <depend name="inftrees.h" />
+	    <depend name="inflate.h" />
+	    <depend name="inffast.h" />
+	</source>
+    </library>
+</package>
+
+<!--
+CFLAGS=-O
+#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
+#CFLAGS=-g -DZLIB_DEBUG
+#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
+#           -Wstrict-prototypes -Wmissing-prototypes
+
+# OBJA =
+# to use the asm code: make OBJA=match.o
+#
+match.o: match.S
+	$(CPP) match.S > _match.s
+	$(CC) -c _match.s
+	mv _match.o match.o
+	rm -f _match.s
+-->
diff --git a/compat/zlib/trees.c b/compat/zlib/trees.c
new file mode 100644
index 0000000..6a523ef
--- /dev/null
+++ b/compat/zlib/trees.c
@@ -0,0 +1,1117 @@
+/* trees.c -- output deflated data using Huffman coding
+ * Copyright (C) 1995-2024 Jean-loup Gailly
+ * detect_data_type() function provided freely by Cosmin Truta, 2006
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/*
+ *  ALGORITHM
+ *
+ *      The "deflation" process uses several Huffman trees. The more
+ *      common source values are represented by shorter bit sequences.
+ *
+ *      Each code tree is stored in a compressed form which is itself
+ * a Huffman encoding of the lengths of all the code strings (in
+ * ascending order by source values).  The actual code strings are
+ * reconstructed from the lengths in the inflate process, as described
+ * in the deflate specification.
+ *
+ *  REFERENCES
+ *
+ *      Deutsch, L.P.,"'Deflate' Compressed Data Format Specification".
+ *      Available in ftp.uu.net:/pub/archiving/zip/doc/deflate-1.1.doc
+ *
+ *      Storer, James A.
+ *          Data Compression:  Methods and Theory, pp. 49-50.
+ *          Computer Science Press, 1988.  ISBN 0-7167-8156-5.
+ *
+ *      Sedgewick, R.
+ *          Algorithms, p290.
+ *          Addison-Wesley, 1983. ISBN 0-201-06672-6.
+ */
+
+/* @(#) $Id$ */
+
+/* #define GEN_TREES_H */
+
+#include "deflate.h"
+
+#ifdef ZLIB_DEBUG
+#  include <ctype.h>
+#endif
+
+/* ===========================================================================
+ * Constants
+ */
+
+#define MAX_BL_BITS 7
+/* Bit length codes must not exceed MAX_BL_BITS bits */
+
+#define END_BLOCK 256
+/* end of block literal code */
+
+#define REP_3_6      16
+/* repeat previous bit length 3-6 times (2 bits of repeat count) */
+
+#define REPZ_3_10    17
+/* repeat a zero length 3-10 times  (3 bits of repeat count) */
+
+#define REPZ_11_138  18
+/* repeat a zero length 11-138 times  (7 bits of repeat count) */
+
+local const int extra_lbits[LENGTH_CODES] /* extra bits for each length code */
+   = {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0};
+
+local const int extra_dbits[D_CODES] /* extra bits for each distance code */
+   = {0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13};
+
+local const int extra_blbits[BL_CODES]/* extra bits for each bit length code */
+   = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7};
+
+local const uch bl_order[BL_CODES]
+   = {16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15};
+/* The lengths of the bit length codes are sent in order of decreasing
+ * probability, to avoid transmitting the lengths for unused bit length codes.
+ */
+
+/* ===========================================================================
+ * Local data. These are initialized only once.
+ */
+
+#define DIST_CODE_LEN  512 /* see definition of array dist_code below */
+
+#if defined(GEN_TREES_H) || !defined(STDC)
+/* non ANSI compilers may not accept trees.h */
+
+local ct_data static_ltree[L_CODES+2];
+/* The static literal tree. Since the bit lengths are imposed, there is no
+ * need for the L_CODES extra codes used during heap construction. However
+ * The codes 286 and 287 are needed to build a canonical tree (see _tr_init
+ * below).
+ */
+
+local ct_data static_dtree[D_CODES];
+/* The static distance tree. (Actually a trivial tree since all codes use
+ * 5 bits.)
+ */
+
+uch _dist_code[DIST_CODE_LEN];
+/* Distance codes. The first 256 values correspond to the distances
+ * 3 .. 258, the last 256 values correspond to the top 8 bits of
+ * the 15 bit distances.
+ */
+
+uch _length_code[MAX_MATCH-MIN_MATCH+1];
+/* length code for each normalized match length (0 == MIN_MATCH) */
+
+local int base_length[LENGTH_CODES];
+/* First normalized length for each code (0 = MIN_MATCH) */
+
+local int base_dist[D_CODES];
+/* First normalized distance for each code (0 = distance of 1) */
+
+#else
+#  include "trees.h"
+#endif /* GEN_TREES_H */
+
+struct static_tree_desc_s {
+    const ct_data *static_tree;  /* static tree or NULL */
+    const intf *extra_bits;      /* extra bits for each code or NULL */
+    int     extra_base;          /* base index for extra_bits */
+    int     elems;               /* max number of elements in the tree */
+    int     max_length;          /* max bit length for the codes */
+};
+
+#ifdef NO_INIT_GLOBAL_POINTERS
+#  define TCONST
+#else
+#  define TCONST const
+#endif
+
+local TCONST static_tree_desc static_l_desc =
+{static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS};
+
+local TCONST static_tree_desc static_d_desc =
+{static_dtree, extra_dbits, 0,          D_CODES, MAX_BITS};
+
+local TCONST static_tree_desc static_bl_desc =
+{(const ct_data *)0, extra_blbits, 0,   BL_CODES, MAX_BL_BITS};
+
+/* ===========================================================================
+ * Output a short LSB first on the stream.
+ * IN assertion: there is enough room in pendingBuf.
+ */
+#define put_short(s, w) { \
+    put_byte(s, (uch)((w) & 0xff)); \
+    put_byte(s, (uch)((ush)(w) >> 8)); \
+}
+
+/* ===========================================================================
+ * Reverse the first len bits of a code, using straightforward code (a faster
+ * method would use a table)
+ * IN assertion: 1 <= len <= 15
+ */
+local unsigned bi_reverse(unsigned code, int len) {
+    register unsigned res = 0;
+    do {
+        res |= code & 1;
+        code >>= 1, res <<= 1;
+    } while (--len > 0);
+    return res >> 1;
+}
+
+/* ===========================================================================
+ * Flush the bit buffer, keeping at most 7 bits in it.
+ */
+local void bi_flush(deflate_state *s) {
+    if (s->bi_valid == 16) {
+        put_short(s, s->bi_buf);
+        s->bi_buf = 0;
+        s->bi_valid = 0;
+    } else if (s->bi_valid >= 8) {
+        put_byte(s, (Byte)s->bi_buf);
+        s->bi_buf >>= 8;
+        s->bi_valid -= 8;
+    }
+}
+
+/* ===========================================================================
+ * Flush the bit buffer and align the output on a byte boundary
+ */
+local void bi_windup(deflate_state *s) {
+    if (s->bi_valid > 8) {
+        put_short(s, s->bi_buf);
+    } else if (s->bi_valid > 0) {
+        put_byte(s, (Byte)s->bi_buf);
+    }
+    s->bi_buf = 0;
+    s->bi_valid = 0;
+#ifdef ZLIB_DEBUG
+    s->bits_sent = (s->bits_sent + 7) & ~7;
+#endif
+}
+
+/* ===========================================================================
+ * Generate the codes for a given tree and bit counts (which need not be
+ * optimal).
+ * IN assertion: the array bl_count contains the bit length statistics for
+ * the given tree and the field len is set for all tree elements.
+ * OUT assertion: the field code is set for all tree elements of non
+ *     zero code length.
+ */
+local void gen_codes(ct_data *tree, int max_code, ushf *bl_count) {
+    ush next_code[MAX_BITS+1]; /* next code value for each bit length */
+    unsigned code = 0;         /* running code value */
+    int bits;                  /* bit index */
+    int n;                     /* code index */
+
+    /* The distribution counts are first used to generate the code values
+     * without bit reversal.
+     */
+    for (bits = 1; bits <= MAX_BITS; bits++) {
+        code = (code + bl_count[bits - 1]) << 1;
+        next_code[bits] = (ush)code;
+    }
+    /* Check that the bit counts in bl_count are consistent. The last code
+     * must be all ones.
+     */
+    Assert (code + bl_count[MAX_BITS] - 1 == (1 << MAX_BITS) - 1,
+            "inconsistent bit counts");
+    Tracev((stderr,"\ngen_codes: max_code %d ", max_code));
+
+    for (n = 0;  n <= max_code; n++) {
+        int len = tree[n].Len;
+        if (len == 0) continue;
+        /* Now reverse the bits */
+        tree[n].Code = (ush)bi_reverse(next_code[len]++, len);
+
+        Tracecv(tree != static_ltree, (stderr,"\nn %3d %c l %2d c %4x (%x) ",
+            n, (isgraph(n) ? n : ' '), len, tree[n].Code, next_code[len] - 1));
+    }
+}
+
+#ifdef GEN_TREES_H
+local void gen_trees_header(void);
+#endif
+
+#ifndef ZLIB_DEBUG
+#  define send_code(s, c, tree) send_bits(s, tree[c].Code, tree[c].Len)
+   /* Send a code of the given tree. c and tree must not have side effects */
+
+#else /* !ZLIB_DEBUG */
+#  define send_code(s, c, tree) \
+     { if (z_verbose>2) fprintf(stderr,"\ncd %3d ",(c)); \
+       send_bits(s, tree[c].Code, tree[c].Len); }
+#endif
+
+/* ===========================================================================
+ * Send a value on a given number of bits.
+ * IN assertion: length <= 16 and value fits in length bits.
+ */
+#ifdef ZLIB_DEBUG
+local void send_bits(deflate_state *s, int value, int length) {
+    Tracevv((stderr," l %2d v %4x ", length, value));
+    Assert(length > 0 && length <= 15, "invalid length");
+    s->bits_sent += (ulg)length;
+
+    /* If not enough room in bi_buf, use (valid) bits from bi_buf and
+     * (16 - bi_valid) bits from value, leaving (width - (16 - bi_valid))
+     * unused bits in value.
+     */
+    if (s->bi_valid > (int)Buf_size - length) {
+        s->bi_buf |= (ush)value << s->bi_valid;
+        put_short(s, s->bi_buf);
+        s->bi_buf = (ush)value >> (Buf_size - s->bi_valid);
+        s->bi_valid += length - Buf_size;
+    } else {
+        s->bi_buf |= (ush)value << s->bi_valid;
+        s->bi_valid += length;
+    }
+}
+#else /* !ZLIB_DEBUG */
+
+#define send_bits(s, value, length) \
+{ int len = length;\
+  if (s->bi_valid > (int)Buf_size - len) {\
+    int val = (int)value;\
+    s->bi_buf |= (ush)val << s->bi_valid;\
+    put_short(s, s->bi_buf);\
+    s->bi_buf = (ush)val >> (Buf_size - s->bi_valid);\
+    s->bi_valid += len - Buf_size;\
+  } else {\
+    s->bi_buf |= (ush)(value) << s->bi_valid;\
+    s->bi_valid += len;\
+  }\
+}
+#endif /* ZLIB_DEBUG */
+
+
+/* the arguments must not have side effects */
+
+/* ===========================================================================
+ * Initialize the various 'constant' tables.
+ */
+local void tr_static_init(void) {
+#if defined(GEN_TREES_H) || !defined(STDC)
+    static int static_init_done = 0;
+    int n;        /* iterates over tree elements */
+    int bits;     /* bit counter */
+    int length;   /* length value */
+    int code;     /* code value */
+    int dist;     /* distance index */
+    ush bl_count[MAX_BITS+1];
+    /* number of codes at each bit length for an optimal tree */
+
+    if (static_init_done) return;
+
+    /* For some embedded targets, global variables are not initialized: */
+#ifdef NO_INIT_GLOBAL_POINTERS
+    static_l_desc.static_tree = static_ltree;
+    static_l_desc.extra_bits = extra_lbits;
+    static_d_desc.static_tree = static_dtree;
+    static_d_desc.extra_bits = extra_dbits;
+    static_bl_desc.extra_bits = extra_blbits;
+#endif
+
+    /* Initialize the mapping length (0..255) -> length code (0..28) */
+    length = 0;
+    for (code = 0; code < LENGTH_CODES-1; code++) {
+        base_length[code] = length;
+        for (n = 0; n < (1 << extra_lbits[code]); n++) {
+            _length_code[length++] = (uch)code;
+        }
+    }
+    Assert (length == 256, "tr_static_init: length != 256");
+    /* Note that the length 255 (match length 258) can be represented
+     * in two different ways: code 284 + 5 bits or code 285, so we
+     * overwrite length_code[255] to use the best encoding:
+     */
+    _length_code[length - 1] = (uch)code;
+
+    /* Initialize the mapping dist (0..32K) -> dist code (0..29) */
+    dist = 0;
+    for (code = 0 ; code < 16; code++) {
+        base_dist[code] = dist;
+        for (n = 0; n < (1 << extra_dbits[code]); n++) {
+            _dist_code[dist++] = (uch)code;
+        }
+    }
+    Assert (dist == 256, "tr_static_init: dist != 256");
+    dist >>= 7; /* from now on, all distances are divided by 128 */
+    for ( ; code < D_CODES; code++) {
+        base_dist[code] = dist << 7;
+        for (n = 0; n < (1 << (extra_dbits[code] - 7)); n++) {
+            _dist_code[256 + dist++] = (uch)code;
+        }
+    }
+    Assert (dist == 256, "tr_static_init: 256 + dist != 512");
+
+    /* Construct the codes of the static literal tree */
+    for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0;
+    n = 0;
+    while (n <= 143) static_ltree[n++].Len = 8, bl_count[8]++;
+    while (n <= 255) static_ltree[n++].Len = 9, bl_count[9]++;
+    while (n <= 279) static_ltree[n++].Len = 7, bl_count[7]++;
+    while (n <= 287) static_ltree[n++].Len = 8, bl_count[8]++;
+    /* Codes 286 and 287 do not exist, but we must include them in the
+     * tree construction to get a canonical Huffman tree (longest code
+     * all ones)
+     */
+    gen_codes((ct_data *)static_ltree, L_CODES+1, bl_count);
+
+    /* The static distance tree is trivial: */
+    for (n = 0; n < D_CODES; n++) {
+        static_dtree[n].Len = 5;
+        static_dtree[n].Code = bi_reverse((unsigned)n, 5);
+    }
+    static_init_done = 1;
+
+#  ifdef GEN_TREES_H
+    gen_trees_header();
+#  endif
+#endif /* defined(GEN_TREES_H) || !defined(STDC) */
+}
+
+/* ===========================================================================
+ * Generate the file trees.h describing the static trees.
+ */
+#ifdef GEN_TREES_H
+#  ifndef ZLIB_DEBUG
+#    include <stdio.h>
+#  endif
+
+#  define SEPARATOR(i, last, width) \
+      ((i) == (last)? "\n};\n\n" :    \
+       ((i) % (width) == (width) - 1 ? ",\n" : ", "))
+
+void gen_trees_header(void) {
+    FILE *header = fopen("trees.h", "w");
+    int i;
+
+    Assert (header != NULL, "Can't open trees.h");
+    fprintf(header,
+            "/* header created automatically with -DGEN_TREES_H */\n\n");
+
+    fprintf(header, "local const ct_data static_ltree[L_CODES+2] = {\n");
+    for (i = 0; i < L_CODES+2; i++) {
+        fprintf(header, "{{%3u},{%3u}}%s", static_ltree[i].Code,
+                static_ltree[i].Len, SEPARATOR(i, L_CODES+1, 5));
+    }
+
+    fprintf(header, "local const ct_data static_dtree[D_CODES] = {\n");
+    for (i = 0; i < D_CODES; i++) {
+        fprintf(header, "{{%2u},{%2u}}%s", static_dtree[i].Code,
+                static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5));
+    }
+
+    fprintf(header, "const uch ZLIB_INTERNAL _dist_code[DIST_CODE_LEN] = {\n");
+    for (i = 0; i < DIST_CODE_LEN; i++) {
+        fprintf(header, "%2u%s", _dist_code[i],
+                SEPARATOR(i, DIST_CODE_LEN-1, 20));
+    }
+
+    fprintf(header,
+        "const uch ZLIB_INTERNAL _length_code[MAX_MATCH-MIN_MATCH+1]= {\n");
+    for (i = 0; i < MAX_MATCH-MIN_MATCH+1; i++) {
+        fprintf(header, "%2u%s", _length_code[i],
+                SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20));
+    }
+
+    fprintf(header, "local const int base_length[LENGTH_CODES] = {\n");
+    for (i = 0; i < LENGTH_CODES; i++) {
+        fprintf(header, "%1u%s", base_length[i],
+                SEPARATOR(i, LENGTH_CODES-1, 20));
+    }
+
+    fprintf(header, "local const int base_dist[D_CODES] = {\n");
+    for (i = 0; i < D_CODES; i++) {
+        fprintf(header, "%5u%s", base_dist[i],
+                SEPARATOR(i, D_CODES-1, 10));
+    }
+
+    fclose(header);
+}
+#endif /* GEN_TREES_H */
+
+/* ===========================================================================
+ * Initialize a new block.
+ */
+local void init_block(deflate_state *s) {
+    int n; /* iterates over tree elements */
+
+    /* Initialize the trees. */
+    for (n = 0; n < L_CODES;  n++) s->dyn_ltree[n].Freq = 0;
+    for (n = 0; n < D_CODES;  n++) s->dyn_dtree[n].Freq = 0;
+    for (n = 0; n < BL_CODES; n++) s->bl_tree[n].Freq = 0;
+
+    s->dyn_ltree[END_BLOCK].Freq = 1;
+    s->opt_len = s->static_len = 0L;
+    s->sym_next = s->matches = 0;
+}
+
+/* ===========================================================================
+ * Initialize the tree data structures for a new zlib stream.
+ */
+void ZLIB_INTERNAL _tr_init(deflate_state *s) {
+    tr_static_init();
+
+    s->l_desc.dyn_tree = s->dyn_ltree;
+    s->l_desc.stat_desc = &static_l_desc;
+
+    s->d_desc.dyn_tree = s->dyn_dtree;
+    s->d_desc.stat_desc = &static_d_desc;
+
+    s->bl_desc.dyn_tree = s->bl_tree;
+    s->bl_desc.stat_desc = &static_bl_desc;
+
+    s->bi_buf = 0;
+    s->bi_valid = 0;
+#ifdef ZLIB_DEBUG
+    s->compressed_len = 0L;
+    s->bits_sent = 0L;
+#endif
+
+    /* Initialize the first block of the first file: */
+    init_block(s);
+}
+
+#define SMALLEST 1
+/* Index within the heap array of least frequent node in the Huffman tree */
+
+
+/* ===========================================================================
+ * Remove the smallest element from the heap and recreate the heap with
+ * one less element. Updates heap and heap_len.
+ */
+#define pqremove(s, tree, top) \
+{\
+    top = s->heap[SMALLEST]; \
+    s->heap[SMALLEST] = s->heap[s->heap_len--]; \
+    pqdownheap(s, tree, SMALLEST); \
+}
+
+/* ===========================================================================
+ * Compares to subtrees, using the tree depth as tie breaker when
+ * the subtrees have equal frequency. This minimizes the worst case length.
+ */
+#define smaller(tree, n, m, depth) \
+   (tree[n].Freq < tree[m].Freq || \
+   (tree[n].Freq == tree[m].Freq && depth[n] <= depth[m]))
+
+/* ===========================================================================
+ * Restore the heap property by moving down the tree starting at node k,
+ * exchanging a node with the smallest of its two sons if necessary, stopping
+ * when the heap property is re-established (each father smaller than its
+ * two sons).
+ */
+local void pqdownheap(deflate_state *s, ct_data *tree, int k) {
+    int v = s->heap[k];
+    int j = k << 1;  /* left son of k */
+    while (j <= s->heap_len) {
+        /* Set j to the smallest of the two sons: */
+        if (j < s->heap_len &&
+            smaller(tree, s->heap[j + 1], s->heap[j], s->depth)) {
+            j++;
+        }
+        /* Exit if v is smaller than both sons */
+        if (smaller(tree, v, s->heap[j], s->depth)) break;
+
+        /* Exchange v with the smallest son */
+        s->heap[k] = s->heap[j];  k = j;
+
+        /* And continue down the tree, setting j to the left son of k */
+        j <<= 1;
+    }
+    s->heap[k] = v;
+}
+
+/* ===========================================================================
+ * Compute the optimal bit lengths for a tree and update the total bit length
+ * for the current block.
+ * IN assertion: the fields freq and dad are set, heap[heap_max] and
+ *    above are the tree nodes sorted by increasing frequency.
+ * OUT assertions: the field len is set to the optimal bit length, the
+ *     array bl_count contains the frequencies for each bit length.
+ *     The length opt_len is updated; static_len is also updated if stree is
+ *     not null.
+ */
+local void gen_bitlen(deflate_state *s, tree_desc *desc) {
+    ct_data *tree        = desc->dyn_tree;
+    int max_code         = desc->max_code;
+    const ct_data *stree = desc->stat_desc->static_tree;
+    const intf *extra    = desc->stat_desc->extra_bits;
+    int base             = desc->stat_desc->extra_base;
+    int max_length       = desc->stat_desc->max_length;
+    int h;              /* heap index */
+    int n, m;           /* iterate over the tree elements */
+    int bits;           /* bit length */
+    int xbits;          /* extra bits */
+    ush f;              /* frequency */
+    int overflow = 0;   /* number of elements with bit length too large */
+
+    for (bits = 0; bits <= MAX_BITS; bits++) s->bl_count[bits] = 0;
+
+    /* In a first pass, compute the optimal bit lengths (which may
+     * overflow in the case of the bit length tree).
+     */
+    tree[s->heap[s->heap_max]].Len = 0; /* root of the heap */
+
+    for (h = s->heap_max + 1; h < HEAP_SIZE; h++) {
+        n = s->heap[h];
+        bits = tree[tree[n].Dad].Len + 1;
+        if (bits > max_length) bits = max_length, overflow++;
+        tree[n].Len = (ush)bits;
+        /* We overwrite tree[n].Dad which is no longer needed */
+
+        if (n > max_code) continue; /* not a leaf node */
+
+        s->bl_count[bits]++;
+        xbits = 0;
+        if (n >= base) xbits = extra[n - base];
+        f = tree[n].Freq;
+        s->opt_len += (ulg)f * (unsigned)(bits + xbits);
+        if (stree) s->static_len += (ulg)f * (unsigned)(stree[n].Len + xbits);
+    }
+    if (overflow == 0) return;
+
+    Tracev((stderr,"\nbit length overflow\n"));
+    /* This happens for example on obj2 and pic of the Calgary corpus */
+
+    /* Find the first bit length which could increase: */
+    do {
+        bits = max_length - 1;
+        while (s->bl_count[bits] == 0) bits--;
+        s->bl_count[bits]--;        /* move one leaf down the tree */
+        s->bl_count[bits + 1] += 2; /* move one overflow item as its brother */
+        s->bl_count[max_length]--;
+        /* The brother of the overflow item also moves one step up,
+         * but this does not affect bl_count[max_length]
+         */
+        overflow -= 2;
+    } while (overflow > 0);
+
+    /* Now recompute all bit lengths, scanning in increasing frequency.
+     * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all
+     * lengths instead of fixing only the wrong ones. This idea is taken
+     * from 'ar' written by Haruhiko Okumura.)
+     */
+    for (bits = max_length; bits != 0; bits--) {
+        n = s->bl_count[bits];
+        while (n != 0) {
+            m = s->heap[--h];
+            if (m > max_code) continue;
+            if ((unsigned) tree[m].Len != (unsigned) bits) {
+                Tracev((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits));
+                s->opt_len += ((ulg)bits - tree[m].Len) * tree[m].Freq;
+                tree[m].Len = (ush)bits;
+            }
+            n--;
+        }
+    }
+}
+
+#ifdef DUMP_BL_TREE
+#  include <stdio.h>
+#endif
+
+/* ===========================================================================
+ * Construct one Huffman tree and assigns the code bit strings and lengths.
+ * Update the total bit length for the current block.
+ * IN assertion: the field freq is set for all tree elements.
+ * OUT assertions: the fields len and code are set to the optimal bit length
+ *     and corresponding code. The length opt_len is updated; static_len is
+ *     also updated if stree is not null. The field max_code is set.
+ */
+local void build_tree(deflate_state *s, tree_desc *desc) {
+    ct_data *tree         = desc->dyn_tree;
+    const ct_data *stree  = desc->stat_desc->static_tree;
+    int elems             = desc->stat_desc->elems;
+    int n, m;          /* iterate over heap elements */
+    int max_code = -1; /* largest code with non zero frequency */
+    int node;          /* new node being created */
+
+    /* Construct the initial heap, with least frequent element in
+     * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n + 1].
+     * heap[0] is not used.
+     */
+    s->heap_len = 0, s->heap_max = HEAP_SIZE;
+
+    for (n = 0; n < elems; n++) {
+        if (tree[n].Freq != 0) {
+            s->heap[++(s->heap_len)] = max_code = n;
+            s->depth[n] = 0;
+        } else {
+            tree[n].Len = 0;
+        }
+    }
+
+    /* The pkzip format requires that at least one distance code exists,
+     * and that at least one bit should be sent even if there is only one
+     * possible code. So to avoid special checks later on we force at least
+     * two codes of non zero frequency.
+     */
+    while (s->heap_len < 2) {
+        node = s->heap[++(s->heap_len)] = (max_code < 2 ? ++max_code : 0);
+        tree[node].Freq = 1;
+        s->depth[node] = 0;
+        s->opt_len--; if (stree) s->static_len -= stree[node].Len;
+        /* node is 0 or 1 so it does not have extra bits */
+    }
+    desc->max_code = max_code;
+
+    /* The elements heap[heap_len/2 + 1 .. heap_len] are leaves of the tree,
+     * establish sub-heaps of increasing lengths:
+     */
+    for (n = s->heap_len/2; n >= 1; n--) pqdownheap(s, tree, n);
+
+    /* Construct the Huffman tree by repeatedly combining the least two
+     * frequent nodes.
+     */
+    node = elems;              /* next internal node of the tree */
+    do {
+        pqremove(s, tree, n);  /* n = node of least frequency */
+        m = s->heap[SMALLEST]; /* m = node of next least frequency */
+
+        s->heap[--(s->heap_max)] = n; /* keep the nodes sorted by frequency */
+        s->heap[--(s->heap_max)] = m;
+
+        /* Create a new node father of n and m */
+        tree[node].Freq = tree[n].Freq + tree[m].Freq;
+        s->depth[node] = (uch)((s->depth[n] >= s->depth[m] ?
+                                s->depth[n] : s->depth[m]) + 1);
+        tree[n].Dad = tree[m].Dad = (ush)node;
+#ifdef DUMP_BL_TREE
+        if (tree == s->bl_tree) {
+            fprintf(stderr,"\nnode %d(%d), sons %d(%d) %d(%d)",
+                    node, tree[node].Freq, n, tree[n].Freq, m, tree[m].Freq);
+        }
+#endif
+        /* and insert the new node in the heap */
+        s->heap[SMALLEST] = node++;
+        pqdownheap(s, tree, SMALLEST);
+
+    } while (s->heap_len >= 2);
+
+    s->heap[--(s->heap_max)] = s->heap[SMALLEST];
+
+    /* At this point, the fields freq and dad are set. We can now
+     * generate the bit lengths.
+     */
+    gen_bitlen(s, (tree_desc *)desc);
+
+    /* The field len is now set, we can generate the bit codes */
+    gen_codes ((ct_data *)tree, max_code, s->bl_count);
+}
+
+/* ===========================================================================
+ * Scan a literal or distance tree to determine the frequencies of the codes
+ * in the bit length tree.
+ */
+local void scan_tree(deflate_state *s, ct_data *tree, int max_code) {
+    int n;                     /* iterates over all tree elements */
+    int prevlen = -1;          /* last emitted length */
+    int curlen;                /* length of current code */
+    int nextlen = tree[0].Len; /* length of next code */
+    int count = 0;             /* repeat count of the current code */
+    int max_count = 7;         /* max repeat count */
+    int min_count = 4;         /* min repeat count */
+
+    if (nextlen == 0) max_count = 138, min_count = 3;
+    tree[max_code + 1].Len = (ush)0xffff; /* guard */
+
+    for (n = 0; n <= max_code; n++) {
+        curlen = nextlen; nextlen = tree[n + 1].Len;
+        if (++count < max_count && curlen == nextlen) {
+            continue;
+        } else if (count < min_count) {
+            s->bl_tree[curlen].Freq += count;
+        } else if (curlen != 0) {
+            if (curlen != prevlen) s->bl_tree[curlen].Freq++;
+            s->bl_tree[REP_3_6].Freq++;
+        } else if (count <= 10) {
+            s->bl_tree[REPZ_3_10].Freq++;
+        } else {
+            s->bl_tree[REPZ_11_138].Freq++;
+        }
+        count = 0; prevlen = curlen;
+        if (nextlen == 0) {
+            max_count = 138, min_count = 3;
+        } else if (curlen == nextlen) {
+            max_count = 6, min_count = 3;
+        } else {
+            max_count = 7, min_count = 4;
+        }
+    }
+}
+
+/* ===========================================================================
+ * Send a literal or distance tree in compressed form, using the codes in
+ * bl_tree.
+ */
+local void send_tree(deflate_state *s, ct_data *tree, int max_code) {
+    int n;                     /* iterates over all tree elements */
+    int prevlen = -1;          /* last emitted length */
+    int curlen;                /* length of current code */
+    int nextlen = tree[0].Len; /* length of next code */
+    int count = 0;             /* repeat count of the current code */
+    int max_count = 7;         /* max repeat count */
+    int min_count = 4;         /* min repeat count */
+
+    /* tree[max_code + 1].Len = -1; */  /* guard already set */
+    if (nextlen == 0) max_count = 138, min_count = 3;
+
+    for (n = 0; n <= max_code; n++) {
+        curlen = nextlen; nextlen = tree[n + 1].Len;
+        if (++count < max_count && curlen == nextlen) {
+            continue;
+        } else if (count < min_count) {
+            do { send_code(s, curlen, s->bl_tree); } while (--count != 0);
+
+        } else if (curlen != 0) {
+            if (curlen != prevlen) {
+                send_code(s, curlen, s->bl_tree); count--;
+            }
+            Assert(count >= 3 && count <= 6, " 3_6?");
+            send_code(s, REP_3_6, s->bl_tree); send_bits(s, count - 3, 2);
+
+        } else if (count <= 10) {
+            send_code(s, REPZ_3_10, s->bl_tree); send_bits(s, count - 3, 3);
+
+        } else {
+            send_code(s, REPZ_11_138, s->bl_tree); send_bits(s, count - 11, 7);
+        }
+        count = 0; prevlen = curlen;
+        if (nextlen == 0) {
+            max_count = 138, min_count = 3;
+        } else if (curlen == nextlen) {
+            max_count = 6, min_count = 3;
+        } else {
+            max_count = 7, min_count = 4;
+        }
+    }
+}
+
+/* ===========================================================================
+ * Construct the Huffman tree for the bit lengths and return the index in
+ * bl_order of the last bit length code to send.
+ */
+local int build_bl_tree(deflate_state *s) {
+    int max_blindex;  /* index of last bit length code of non zero freq */
+
+    /* Determine the bit length frequencies for literal and distance trees */
+    scan_tree(s, (ct_data *)s->dyn_ltree, s->l_desc.max_code);
+    scan_tree(s, (ct_data *)s->dyn_dtree, s->d_desc.max_code);
+
+    /* Build the bit length tree: */
+    build_tree(s, (tree_desc *)(&(s->bl_desc)));
+    /* opt_len now includes the length of the tree representations, except the
+     * lengths of the bit lengths codes and the 5 + 5 + 4 bits for the counts.
+     */
+
+    /* Determine the number of bit length codes to send. The pkzip format
+     * requires that at least 4 bit length codes be sent. (appnote.txt says
+     * 3 but the actual value used is 4.)
+     */
+    for (max_blindex = BL_CODES-1; max_blindex >= 3; max_blindex--) {
+        if (s->bl_tree[bl_order[max_blindex]].Len != 0) break;
+    }
+    /* Update opt_len to include the bit length tree and counts */
+    s->opt_len += 3*((ulg)max_blindex + 1) + 5 + 5 + 4;
+    Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld",
+            s->opt_len, s->static_len));
+
+    return max_blindex;
+}
+
+/* ===========================================================================
+ * Send the header for a block using dynamic Huffman trees: the counts, the
+ * lengths of the bit length codes, the literal tree and the distance tree.
+ * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4.
+ */
+local void send_all_trees(deflate_state *s, int lcodes, int dcodes,
+                          int blcodes) {
+    int rank;                    /* index in bl_order */
+
+    Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes");
+    Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES,
+            "too many codes");
+    Tracev((stderr, "\nbl counts: "));
+    send_bits(s, lcodes - 257, 5);  /* not +255 as stated in appnote.txt */
+    send_bits(s, dcodes - 1,   5);
+    send_bits(s, blcodes - 4,  4);  /* not -3 as stated in appnote.txt */
+    for (rank = 0; rank < blcodes; rank++) {
+        Tracev((stderr, "\nbl code %2d ", bl_order[rank]));
+        send_bits(s, s->bl_tree[bl_order[rank]].Len, 3);
+    }
+    Tracev((stderr, "\nbl tree: sent %ld", s->bits_sent));
+
+    send_tree(s, (ct_data *)s->dyn_ltree, lcodes - 1);  /* literal tree */
+    Tracev((stderr, "\nlit tree: sent %ld", s->bits_sent));
+
+    send_tree(s, (ct_data *)s->dyn_dtree, dcodes - 1);  /* distance tree */
+    Tracev((stderr, "\ndist tree: sent %ld", s->bits_sent));
+}
+
+/* ===========================================================================
+ * Send a stored block
+ */
+void ZLIB_INTERNAL _tr_stored_block(deflate_state *s, charf *buf,
+                                    ulg stored_len, int last) {
+    send_bits(s, (STORED_BLOCK<<1) + last, 3);  /* send block type */
+    bi_windup(s);        /* align on byte boundary */
+    put_short(s, (ush)stored_len);
+    put_short(s, (ush)~stored_len);
+    if (stored_len)
+        zmemcpy(s->pending_buf + s->pending, (Bytef *)buf, stored_len);
+    s->pending += stored_len;
+#ifdef ZLIB_DEBUG
+    s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L;
+    s->compressed_len += (stored_len + 4) << 3;
+    s->bits_sent += 2*16;
+    s->bits_sent += stored_len << 3;
+#endif
+}
+
+/* ===========================================================================
+ * Flush the bits in the bit buffer to pending output (leaves at most 7 bits)
+ */
+void ZLIB_INTERNAL _tr_flush_bits(deflate_state *s) {
+    bi_flush(s);
+}
+
+/* ===========================================================================
+ * Send one empty static block to give enough lookahead for inflate.
+ * This takes 10 bits, of which 7 may remain in the bit buffer.
+ */
+void ZLIB_INTERNAL _tr_align(deflate_state *s) {
+    send_bits(s, STATIC_TREES<<1, 3);
+    send_code(s, END_BLOCK, static_ltree);
+#ifdef ZLIB_DEBUG
+    s->compressed_len += 10L; /* 3 for block type, 7 for EOB */
+#endif
+    bi_flush(s);
+}
+
+/* ===========================================================================
+ * Send the block data compressed using the given Huffman trees
+ */
+local void compress_block(deflate_state *s, const ct_data *ltree,
+                          const ct_data *dtree) {
+    unsigned dist;      /* distance of matched string */
+    int lc;             /* match length or unmatched char (if dist == 0) */
+    unsigned sx = 0;    /* running index in symbol buffers */
+    unsigned code;      /* the code to send */
+    int extra;          /* number of extra bits to send */
+
+    if (s->sym_next != 0) do {
+#ifdef LIT_MEM
+        dist = s->d_buf[sx];
+        lc = s->l_buf[sx++];
+#else
+        dist = s->sym_buf[sx++] & 0xff;
+        dist += (unsigned)(s->sym_buf[sx++] & 0xff) << 8;
+        lc = s->sym_buf[sx++];
+#endif
+        if (dist == 0) {
+            send_code(s, lc, ltree); /* send a literal byte */
+            Tracecv(isgraph(lc), (stderr," '%c' ", lc));
+        } else {
+            /* Here, lc is the match length - MIN_MATCH */
+            code = _length_code[lc];
+            send_code(s, code + LITERALS + 1, ltree);   /* send length code */
+            extra = extra_lbits[code];
+            if (extra != 0) {
+                lc -= base_length[code];
+                send_bits(s, lc, extra);       /* send the extra length bits */
+            }
+            dist--; /* dist is now the match distance - 1 */
+            code = d_code(dist);
+            Assert (code < D_CODES, "bad d_code");
+
+            send_code(s, code, dtree);       /* send the distance code */
+            extra = extra_dbits[code];
+            if (extra != 0) {
+                dist -= (unsigned)base_dist[code];
+                send_bits(s, dist, extra);   /* send the extra distance bits */
+            }
+        } /* literal or match pair ? */
+
+        /* Check for no overlay of pending_buf on needed symbols */
+#ifdef LIT_MEM
+        Assert(s->pending < 2 * (s->lit_bufsize + sx), "pendingBuf overflow");
+#else
+        Assert(s->pending < s->lit_bufsize + sx, "pendingBuf overflow");
+#endif
+
+    } while (sx < s->sym_next);
+
+    send_code(s, END_BLOCK, ltree);
+}
+
+/* ===========================================================================
+ * Check if the data type is TEXT or BINARY, using the following algorithm:
+ * - TEXT if the two conditions below are satisfied:
+ *    a) There are no non-portable control characters belonging to the
+ *       "block list" (0..6, 14..25, 28..31).
+ *    b) There is at least one printable character belonging to the
+ *       "allow list" (9 {TAB}, 10 {LF}, 13 {CR}, 32..255).
+ * - BINARY otherwise.
+ * - The following partially-portable control characters form a
+ *   "gray list" that is ignored in this detection algorithm:
+ *   (7 {BEL}, 8 {BS}, 11 {VT}, 12 {FF}, 26 {SUB}, 27 {ESC}).
+ * IN assertion: the fields Freq of dyn_ltree are set.
+ */
+local int detect_data_type(deflate_state *s) {
+    /* block_mask is the bit mask of block-listed bytes
+     * set bits 0..6, 14..25, and 28..31
+     * 0xf3ffc07f = binary 11110011111111111100000001111111
+     */
+    unsigned long block_mask = 0xf3ffc07fUL;
+    int n;
+
+    /* Check for non-textual ("block-listed") bytes. */
+    for (n = 0; n <= 31; n++, block_mask >>= 1)
+        if ((block_mask & 1) && (s->dyn_ltree[n].Freq != 0))
+            return Z_BINARY;
+
+    /* Check for textual ("allow-listed") bytes. */
+    if (s->dyn_ltree[9].Freq != 0 || s->dyn_ltree[10].Freq != 0
+            || s->dyn_ltree[13].Freq != 0)
+        return Z_TEXT;
+    for (n = 32; n < LITERALS; n++)
+        if (s->dyn_ltree[n].Freq != 0)
+            return Z_TEXT;
+
+    /* There are no "block-listed" or "allow-listed" bytes:
+     * this stream either is empty or has tolerated ("gray-listed") bytes only.
+     */
+    return Z_BINARY;
+}
+
+/* ===========================================================================
+ * Determine the best encoding for the current block: dynamic trees, static
+ * trees or store, and write out the encoded block.
+ */
+void ZLIB_INTERNAL _tr_flush_block(deflate_state *s, charf *buf,
+                                   ulg stored_len, int last) {
+    ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */
+    int max_blindex = 0;  /* index of last bit length code of non zero freq */
+
+    /* Build the Huffman trees unless a stored block is forced */
+    if (s->level > 0) {
+
+        /* Check if the file is binary or text */
+        if (s->strm->data_type == Z_UNKNOWN)
+            s->strm->data_type = detect_data_type(s);
+
+        /* Construct the literal and distance trees */
+        build_tree(s, (tree_desc *)(&(s->l_desc)));
+        Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len,
+                s->static_len));
+
+        build_tree(s, (tree_desc *)(&(s->d_desc)));
+        Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len,
+                s->static_len));
+        /* At this point, opt_len and static_len are the total bit lengths of
+         * the compressed block data, excluding the tree representations.
+         */
+
+        /* Build the bit length tree for the above two trees, and get the index
+         * in bl_order of the last bit length code to send.
+         */
+        max_blindex = build_bl_tree(s);
+
+        /* Determine the best encoding. Compute the block lengths in bytes. */
+        opt_lenb = (s->opt_len + 3 + 7) >> 3;
+        static_lenb = (s->static_len + 3 + 7) >> 3;
+
+        Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ",
+                opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len,
+                s->sym_next / 3));
+
+#ifndef FORCE_STATIC
+        if (static_lenb <= opt_lenb || s->strategy == Z_FIXED)
+#endif
+            opt_lenb = static_lenb;
+
+    } else {
+        Assert(buf != (char*)0, "lost buf");
+        opt_lenb = static_lenb = stored_len + 5; /* force a stored block */
+    }
+
+#ifdef FORCE_STORED
+    if (buf != (char*)0) { /* force stored block */
+#else
+    if (stored_len + 4 <= opt_lenb && buf != (char*)0) {
+                       /* 4: two words for the lengths */
+#endif
+        /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE.
+         * Otherwise we can't have processed more than WSIZE input bytes since
+         * the last block flush, because compression would have been
+         * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to
+         * transform a block into a stored block.
+         */
+        _tr_stored_block(s, buf, stored_len, last);
+
+    } else if (static_lenb == opt_lenb) {
+        send_bits(s, (STATIC_TREES<<1) + last, 3);
+        compress_block(s, (const ct_data *)static_ltree,
+                       (const ct_data *)static_dtree);
+#ifdef ZLIB_DEBUG
+        s->compressed_len += 3 + s->static_len;
+#endif
+    } else {
+        send_bits(s, (DYN_TREES<<1) + last, 3);
+        send_all_trees(s, s->l_desc.max_code + 1, s->d_desc.max_code + 1,
+                       max_blindex + 1);
+        compress_block(s, (const ct_data *)s->dyn_ltree,
+                       (const ct_data *)s->dyn_dtree);
+#ifdef ZLIB_DEBUG
+        s->compressed_len += 3 + s->opt_len;
+#endif
+    }
+    Assert (s->compressed_len == s->bits_sent, "bad compressed size");
+    /* The above check is made mod 2^32, for files larger than 512 MB
+     * and uLong implemented on 32 bits.
+     */
+    init_block(s);
+
+    if (last) {
+        bi_windup(s);
+#ifdef ZLIB_DEBUG
+        s->compressed_len += 7;  /* align on byte boundary */
+#endif
+    }
+    Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len >> 3,
+           s->compressed_len - 7*last));
+}
+
+/* ===========================================================================
+ * Save the match info and tally the frequency counts. Return true if
+ * the current block must be flushed.
+ */
+int ZLIB_INTERNAL _tr_tally(deflate_state *s, unsigned dist, unsigned lc) {
+#ifdef LIT_MEM
+    s->d_buf[s->sym_next] = (ush)dist;
+    s->l_buf[s->sym_next++] = (uch)lc;
+#else
+    s->sym_buf[s->sym_next++] = (uch)dist;
+    s->sym_buf[s->sym_next++] = (uch)(dist >> 8);
+    s->sym_buf[s->sym_next++] = (uch)lc;
+#endif
+    if (dist == 0) {
+        /* lc is the unmatched char */
+        s->dyn_ltree[lc].Freq++;
+    } else {
+        s->matches++;
+        /* Here, lc is the match length - MIN_MATCH */
+        dist--;             /* dist = match distance - 1 */
+        Assert((ush)dist < (ush)MAX_DIST(s) &&
+               (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) &&
+               (ush)d_code(dist) < (ush)D_CODES,  "_tr_tally: bad match");
+
+        s->dyn_ltree[_length_code[lc] + LITERALS + 1].Freq++;
+        s->dyn_dtree[d_code(dist)].Freq++;
+    }
+    return (s->sym_next == s->sym_end);
+}
diff --git a/compat/zlib/trees.h b/compat/zlib/trees.h
new file mode 100644
index 0000000..d35639d
--- /dev/null
+++ b/compat/zlib/trees.h
@@ -0,0 +1,128 @@
+/* header created automatically with -DGEN_TREES_H */
+
+local const ct_data static_ltree[L_CODES+2] = {
+{{ 12},{  8}}, {{140},{  8}}, {{ 76},{  8}}, {{204},{  8}}, {{ 44},{  8}},
+{{172},{  8}}, {{108},{  8}}, {{236},{  8}}, {{ 28},{  8}}, {{156},{  8}},
+{{ 92},{  8}}, {{220},{  8}}, {{ 60},{  8}}, {{188},{  8}}, {{124},{  8}},
+{{252},{  8}}, {{  2},{  8}}, {{130},{  8}}, {{ 66},{  8}}, {{194},{  8}},
+{{ 34},{  8}}, {{162},{  8}}, {{ 98},{  8}}, {{226},{  8}}, {{ 18},{  8}},
+{{146},{  8}}, {{ 82},{  8}}, {{210},{  8}}, {{ 50},{  8}}, {{178},{  8}},
+{{114},{  8}}, {{242},{  8}}, {{ 10},{  8}}, {{138},{  8}}, {{ 74},{  8}},
+{{202},{  8}}, {{ 42},{  8}}, {{170},{  8}}, {{106},{  8}}, {{234},{  8}},
+{{ 26},{  8}}, {{154},{  8}}, {{ 90},{  8}}, {{218},{  8}}, {{ 58},{  8}},
+{{186},{  8}}, {{122},{  8}}, {{250},{  8}}, {{  6},{  8}}, {{134},{  8}},
+{{ 70},{  8}}, {{198},{  8}}, {{ 38},{  8}}, {{166},{  8}}, {{102},{  8}},
+{{230},{  8}}, {{ 22},{  8}}, {{150},{  8}}, {{ 86},{  8}}, {{214},{  8}},
+{{ 54},{  8}}, {{182},{  8}}, {{118},{  8}}, {{246},{  8}}, {{ 14},{  8}},
+{{142},{  8}}, {{ 78},{  8}}, {{206},{  8}}, {{ 46},{  8}}, {{174},{  8}},
+{{110},{  8}}, {{238},{  8}}, {{ 30},{  8}}, {{158},{  8}}, {{ 94},{  8}},
+{{222},{  8}}, {{ 62},{  8}}, {{190},{  8}}, {{126},{  8}}, {{254},{  8}},
+{{  1},{  8}}, {{129},{  8}}, {{ 65},{  8}}, {{193},{  8}}, {{ 33},{  8}},
+{{161},{  8}}, {{ 97},{  8}}, {{225},{  8}}, {{ 17},{  8}}, {{145},{  8}},
+{{ 81},{  8}}, {{209},{  8}}, {{ 49},{  8}}, {{177},{  8}}, {{113},{  8}},
+{{241},{  8}}, {{  9},{  8}}, {{137},{  8}}, {{ 73},{  8}}, {{201},{  8}},
+{{ 41},{  8}}, {{169},{  8}}, {{105},{  8}}, {{233},{  8}}, {{ 25},{  8}},
+{{153},{  8}}, {{ 89},{  8}}, {{217},{  8}}, {{ 57},{  8}}, {{185},{  8}},
+{{121},{  8}}, {{249},{  8}}, {{  5},{  8}}, {{133},{  8}}, {{ 69},{  8}},
+{{197},{  8}}, {{ 37},{  8}}, {{165},{  8}}, {{101},{  8}}, {{229},{  8}},
+{{ 21},{  8}}, {{149},{  8}}, {{ 85},{  8}}, {{213},{  8}}, {{ 53},{  8}},
+{{181},{  8}}, {{117},{  8}}, {{245},{  8}}, {{ 13},{  8}}, {{141},{  8}},
+{{ 77},{  8}}, {{205},{  8}}, {{ 45},{  8}}, {{173},{  8}}, {{109},{  8}},
+{{237},{  8}}, {{ 29},{  8}}, {{157},{  8}}, {{ 93},{  8}}, {{221},{  8}},
+{{ 61},{  8}}, {{189},{  8}}, {{125},{  8}}, {{253},{  8}}, {{ 19},{  9}},
+{{275},{  9}}, {{147},{  9}}, {{403},{  9}}, {{ 83},{  9}}, {{339},{  9}},
+{{211},{  9}}, {{467},{  9}}, {{ 51},{  9}}, {{307},{  9}}, {{179},{  9}},
+{{435},{  9}}, {{115},{  9}}, {{371},{  9}}, {{243},{  9}}, {{499},{  9}},
+{{ 11},{  9}}, {{267},{  9}}, {{139},{  9}}, {{395},{  9}}, {{ 75},{  9}},
+{{331},{  9}}, {{203},{  9}}, {{459},{  9}}, {{ 43},{  9}}, {{299},{  9}},
+{{171},{  9}}, {{427},{  9}}, {{107},{  9}}, {{363},{  9}}, {{235},{  9}},
+{{491},{  9}}, {{ 27},{  9}}, {{283},{  9}}, {{155},{  9}}, {{411},{  9}},
+{{ 91},{  9}}, {{347},{  9}}, {{219},{  9}}, {{475},{  9}}, {{ 59},{  9}},
+{{315},{  9}}, {{187},{  9}}, {{443},{  9}}, {{123},{  9}}, {{379},{  9}},
+{{251},{  9}}, {{507},{  9}}, {{  7},{  9}}, {{263},{  9}}, {{135},{  9}},
+{{391},{  9}}, {{ 71},{  9}}, {{327},{  9}}, {{199},{  9}}, {{455},{  9}},
+{{ 39},{  9}}, {{295},{  9}}, {{167},{  9}}, {{423},{  9}}, {{103},{  9}},
+{{359},{  9}}, {{231},{  9}}, {{487},{  9}}, {{ 23},{  9}}, {{279},{  9}},
+{{151},{  9}}, {{407},{  9}}, {{ 87},{  9}}, {{343},{  9}}, {{215},{  9}},
+{{471},{  9}}, {{ 55},{  9}}, {{311},{  9}}, {{183},{  9}}, {{439},{  9}},
+{{119},{  9}}, {{375},{  9}}, {{247},{  9}}, {{503},{  9}}, {{ 15},{  9}},
+{{271},{  9}}, {{143},{  9}}, {{399},{  9}}, {{ 79},{  9}}, {{335},{  9}},
+{{207},{  9}}, {{463},{  9}}, {{ 47},{  9}}, {{303},{  9}}, {{175},{  9}},
+{{431},{  9}}, {{111},{  9}}, {{367},{  9}}, {{239},{  9}}, {{495},{  9}},
+{{ 31},{  9}}, {{287},{  9}}, {{159},{  9}}, {{415},{  9}}, {{ 95},{  9}},
+{{351},{  9}}, {{223},{  9}}, {{479},{  9}}, {{ 63},{  9}}, {{319},{  9}},
+{{191},{  9}}, {{447},{  9}}, {{127},{  9}}, {{383},{  9}}, {{255},{  9}},
+{{511},{  9}}, {{  0},{  7}}, {{ 64},{  7}}, {{ 32},{  7}}, {{ 96},{  7}},
+{{ 16},{  7}}, {{ 80},{  7}}, {{ 48},{  7}}, {{112},{  7}}, {{  8},{  7}},
+{{ 72},{  7}}, {{ 40},{  7}}, {{104},{  7}}, {{ 24},{  7}}, {{ 88},{  7}},
+{{ 56},{  7}}, {{120},{  7}}, {{  4},{  7}}, {{ 68},{  7}}, {{ 36},{  7}},
+{{100},{  7}}, {{ 20},{  7}}, {{ 84},{  7}}, {{ 52},{  7}}, {{116},{  7}},
+{{  3},{  8}}, {{131},{  8}}, {{ 67},{  8}}, {{195},{  8}}, {{ 35},{  8}},
+{{163},{  8}}, {{ 99},{  8}}, {{227},{  8}}
+};
+
+local const ct_data static_dtree[D_CODES] = {
+{{ 0},{ 5}}, {{16},{ 5}}, {{ 8},{ 5}}, {{24},{ 5}}, {{ 4},{ 5}},
+{{20},{ 5}}, {{12},{ 5}}, {{28},{ 5}}, {{ 2},{ 5}}, {{18},{ 5}},
+{{10},{ 5}}, {{26},{ 5}}, {{ 6},{ 5}}, {{22},{ 5}}, {{14},{ 5}},
+{{30},{ 5}}, {{ 1},{ 5}}, {{17},{ 5}}, {{ 9},{ 5}}, {{25},{ 5}},
+{{ 5},{ 5}}, {{21},{ 5}}, {{13},{ 5}}, {{29},{ 5}}, {{ 3},{ 5}},
+{{19},{ 5}}, {{11},{ 5}}, {{27},{ 5}}, {{ 7},{ 5}}, {{23},{ 5}}
+};
+
+const uch ZLIB_INTERNAL _dist_code[DIST_CODE_LEN] = {
+ 0,  1,  2,  3,  4,  4,  5,  5,  6,  6,  6,  6,  7,  7,  7,  7,  8,  8,  8,  8,
+ 8,  8,  8,  8,  9,  9,  9,  9,  9,  9,  9,  9, 10, 10, 10, 10, 10, 10, 10, 10,
+10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
+11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13,
+13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15,
+15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,  0,  0, 16, 17,
+18, 18, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22,
+23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
+24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
+26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27,
+27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
+27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
+28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
+28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
+28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
+29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
+29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
+29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29
+};
+
+const uch ZLIB_INTERNAL _length_code[MAX_MATCH-MIN_MATCH+1]= {
+ 0,  1,  2,  3,  4,  5,  6,  7,  8,  8,  9,  9, 10, 10, 11, 11, 12, 12, 12, 12,
+13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16,
+17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19,
+19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22,
+22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23,
+23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
+24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
+25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26,
+26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
+26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
+27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28
+};
+
+local const int base_length[LENGTH_CODES] = {
+0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 20, 24, 28, 32, 40, 48, 56,
+64, 80, 96, 112, 128, 160, 192, 224, 0
+};
+
+local const int base_dist[D_CODES] = {
+    0,     1,     2,     3,     4,     6,     8,    12,    16,    24,
+   32,    48,    64,    96,   128,   192,   256,   384,   512,   768,
+ 1024,  1536,  2048,  3072,  4096,  6144,  8192, 12288, 16384, 24576
+};
+
diff --git a/compat/zlib/uncompr.c b/compat/zlib/uncompr.c
new file mode 100644
index 0000000..5e25666
--- /dev/null
+++ b/compat/zlib/uncompr.c
@@ -0,0 +1,85 @@
+/* uncompr.c -- decompress a memory buffer
+ * Copyright (C) 1995-2003, 2010, 2014, 2016 Jean-loup Gailly, Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#define ZLIB_INTERNAL
+#include "zlib.h"
+
+/* ===========================================================================
+     Decompresses the source buffer into the destination buffer.  *sourceLen is
+   the byte length of the source buffer. Upon entry, *destLen is the total size
+   of the destination buffer, which must be large enough to hold the entire
+   uncompressed data. (The size of the uncompressed data must have been saved
+   previously by the compressor and transmitted to the decompressor by some
+   mechanism outside the scope of this compression library.) Upon exit,
+   *destLen is the size of the decompressed data and *sourceLen is the number
+   of source bytes consumed. Upon return, source + *sourceLen points to the
+   first unused input byte.
+
+     uncompress returns Z_OK if success, Z_MEM_ERROR if there was not enough
+   memory, Z_BUF_ERROR if there was not enough room in the output buffer, or
+   Z_DATA_ERROR if the input data was corrupted, including if the input data is
+   an incomplete zlib stream.
+*/
+int ZEXPORT uncompress2(Bytef *dest, uLongf *destLen, const Bytef *source,
+                        uLong *sourceLen) {
+    z_stream stream;
+    int err;
+    const uInt max = (uInt)-1;
+    uLong len, left;
+    Byte buf[1];    /* for detection of incomplete stream when *destLen == 0 */
+
+    len = *sourceLen;
+    if (*destLen) {
+        left = *destLen;
+        *destLen = 0;
+    }
+    else {
+        left = 1;
+        dest = buf;
+    }
+
+    stream.next_in = (z_const Bytef *)source;
+    stream.avail_in = 0;
+    stream.zalloc = (alloc_func)0;
+    stream.zfree = (free_func)0;
+    stream.opaque = (voidpf)0;
+
+    err = inflateInit(&stream);
+    if (err != Z_OK) return err;
+
+    stream.next_out = dest;
+    stream.avail_out = 0;
+
+    do {
+        if (stream.avail_out == 0) {
+            stream.avail_out = left > (uLong)max ? max : (uInt)left;
+            left -= stream.avail_out;
+        }
+        if (stream.avail_in == 0) {
+            stream.avail_in = len > (uLong)max ? max : (uInt)len;
+            len -= stream.avail_in;
+        }
+        err = inflate(&stream, Z_NO_FLUSH);
+    } while (err == Z_OK);
+
+    *sourceLen -= len + stream.avail_in;
+    if (dest != buf)
+        *destLen = stream.total_out;
+    else if (stream.total_out && err == Z_BUF_ERROR)
+        left = 1;
+
+    inflateEnd(&stream);
+    return err == Z_STREAM_END ? Z_OK :
+           err == Z_NEED_DICT ? Z_DATA_ERROR  :
+           err == Z_BUF_ERROR && left + stream.avail_out ? Z_DATA_ERROR :
+           err;
+}
+
+int ZEXPORT uncompress(Bytef *dest, uLongf *destLen, const Bytef *source,
+                       uLong sourceLen) {
+    return uncompress2(dest, destLen, source, &sourceLen);
+}
diff --git a/compat/zlib/watcom/watcom_f.mak b/compat/zlib/watcom/watcom_f.mak
new file mode 100644
index 0000000..37f4d74
--- /dev/null
+++ b/compat/zlib/watcom/watcom_f.mak
@@ -0,0 +1,43 @@
+# Makefile for zlib
+# OpenWatcom flat model
+# Last updated: 28-Dec-2005
+
+# To use, do "wmake -f watcom_f.mak"
+
+C_SOURCE =  adler32.c  compress.c crc32.c   deflate.c    &
+	    gzclose.c  gzlib.c    gzread.c  gzwrite.c    &
+            infback.c  inffast.c  inflate.c inftrees.c   &
+            trees.c    uncompr.c  zutil.c
+
+OBJS =      adler32.obj  compress.obj crc32.obj   deflate.obj    &
+	    gzclose.obj  gzlib.obj    gzread.obj  gzwrite.obj    &
+            infback.obj  inffast.obj  inflate.obj inftrees.obj   &
+            trees.obj    uncompr.obj  zutil.obj
+
+CC       = wcc386
+LINKER   = wcl386
+CFLAGS   = -zq -mf -3r -fp3 -s -bt=dos -oilrtfm -fr=nul -wx
+ZLIB_LIB = zlib_f.lib
+
+.C.OBJ:
+        $(CC) $(CFLAGS) $[@
+
+all: $(ZLIB_LIB) example.exe minigzip.exe
+
+$(ZLIB_LIB): $(OBJS)
+	wlib -b -c $(ZLIB_LIB) -+adler32.obj  -+compress.obj -+crc32.obj
+	wlib -b -c $(ZLIB_LIB) -+gzclose.obj  -+gzlib.obj    -+gzread.obj   -+gzwrite.obj
+        wlib -b -c $(ZLIB_LIB) -+deflate.obj  -+infback.obj
+        wlib -b -c $(ZLIB_LIB) -+inffast.obj  -+inflate.obj  -+inftrees.obj
+        wlib -b -c $(ZLIB_LIB) -+trees.obj    -+uncompr.obj  -+zutil.obj
+
+example.exe: $(ZLIB_LIB) example.obj
+	$(LINKER) -ldos32a -fe=example.exe example.obj $(ZLIB_LIB)
+
+minigzip.exe: $(ZLIB_LIB) minigzip.obj
+	$(LINKER) -ldos32a -fe=minigzip.exe minigzip.obj $(ZLIB_LIB)
+
+clean: .SYMBOLIC
+          del *.obj
+          del $(ZLIB_LIB)
+          @echo Cleaning done
diff --git a/compat/zlib/watcom/watcom_l.mak b/compat/zlib/watcom/watcom_l.mak
new file mode 100644
index 0000000..193eed7
--- /dev/null
+++ b/compat/zlib/watcom/watcom_l.mak
@@ -0,0 +1,43 @@
+# Makefile for zlib
+# OpenWatcom large model
+# Last updated: 28-Dec-2005
+
+# To use, do "wmake -f watcom_l.mak"
+
+C_SOURCE =  adler32.c  compress.c crc32.c   deflate.c    &
+	    gzclose.c  gzlib.c    gzread.c  gzwrite.c    &
+            infback.c  inffast.c  inflate.c inftrees.c   &
+            trees.c    uncompr.c  zutil.c
+
+OBJS =      adler32.obj  compress.obj crc32.obj   deflate.obj    &
+	    gzclose.obj  gzlib.obj    gzread.obj  gzwrite.obj    &
+            infback.obj  inffast.obj  inflate.obj inftrees.obj   &
+            trees.obj    uncompr.obj  zutil.obj
+
+CC       = wcc
+LINKER   = wcl
+CFLAGS   = -zq -ml -s -bt=dos -oilrtfm -fr=nul -wx
+ZLIB_LIB = zlib_l.lib
+
+.C.OBJ:
+        $(CC) $(CFLAGS) $[@
+
+all: $(ZLIB_LIB) example.exe minigzip.exe
+
+$(ZLIB_LIB): $(OBJS)
+	wlib -b -c $(ZLIB_LIB) -+adler32.obj  -+compress.obj -+crc32.obj
+	wlib -b -c $(ZLIB_LIB) -+gzclose.obj  -+gzlib.obj    -+gzread.obj   -+gzwrite.obj
+        wlib -b -c $(ZLIB_LIB) -+deflate.obj  -+infback.obj
+        wlib -b -c $(ZLIB_LIB) -+inffast.obj  -+inflate.obj  -+inftrees.obj
+        wlib -b -c $(ZLIB_LIB) -+trees.obj    -+uncompr.obj  -+zutil.obj
+
+example.exe: $(ZLIB_LIB) example.obj
+	$(LINKER) -fe=example.exe example.obj $(ZLIB_LIB)
+
+minigzip.exe: $(ZLIB_LIB) minigzip.obj
+	$(LINKER) -fe=minigzip.exe minigzip.obj $(ZLIB_LIB)
+
+clean: .SYMBOLIC
+          del *.obj
+          del $(ZLIB_LIB)
+          @echo Cleaning done
diff --git a/compat/zlib/win32/DLL_FAQ.txt b/compat/zlib/win32/DLL_FAQ.txt
new file mode 100644
index 0000000..d8cf5f3
--- /dev/null
+++ b/compat/zlib/win32/DLL_FAQ.txt
@@ -0,0 +1,381 @@
+
+            Frequently Asked Questions about ZLIB1.DLL
+
+
+This document describes the design, the rationale, and the usage
+of the common DLL build of zlib, named ZLIB1.DLL.  If you have
+general questions about zlib, you should see the file "FAQ" found
+in the zlib distribution, or at the following location:
+  http://www.gzip.org/zlib/zlib_faq.html
+
+
+ 1. What is ZLIB1.DLL, and how can I get it?
+
+  - ZLIB1.DLL is the common build of zlib as a DLL.
+    (Please remark the character '1' in the name.)
+
+    Applications that link to ZLIB1.DLL can rely on the following
+    specification:
+
+    * The exported symbols are exclusively defined in the source
+      files "zlib.h" and "zlib.def", found in an official zlib
+      source distribution.
+    * The symbols are exported by name, not by ordinal.
+    * The exported names are undecorated.
+    * The calling convention of functions is "C" (CDECL).
+    * The ZLIB1.DLL binary is linked to MSVCRT.DLL.
+
+    The archive in which ZLIB1.DLL is bundled contains compiled
+    test programs that must run with a valid build of ZLIB1.DLL.
+    It is recommended to download the prebuilt DLL from the zlib
+    web site, instead of building it yourself, to avoid potential
+    incompatibilities that could be introduced by your compiler
+    and build settings.  If you do build the DLL yourself, please
+    make sure that it complies with all the above requirements,
+    and it runs with the precompiled test programs, bundled with
+    the original ZLIB1.DLL distribution.
+
+    If, for any reason, you need to build an incompatible DLL,
+    please use a different file name.
+
+
+ 2. Why did you change the name of the DLL to ZLIB1.DLL?
+    What happened to the old ZLIB.DLL?
+
+  - The old ZLIB.DLL, built from zlib-1.1.4 or earlier, required
+    compilation settings that were incompatible to those used by
+    a static build.  The DLL settings were supposed to be enabled
+    by defining the macro ZLIB_DLL, before including "zlib.h".
+    Incorrect handling of this macro was silently accepted at
+    build time, resulting in two major problems:
+
+    * ZLIB_DLL was missing from the old makefile.  When building
+      the DLL, not all people added it to the build options.  In
+      consequence, incompatible incarnations of ZLIB.DLL started
+      to circulate around the net.
+
+    * When switching from using the static library to using the
+      DLL, applications had to define the ZLIB_DLL macro and
+      to recompile all the sources that contained calls to zlib
+      functions.  Failure to do so resulted in creating binaries
+      that were unable to run with the official ZLIB.DLL build.
+
+    The only possible solution that we could foresee was to make
+    a binary-incompatible change in the DLL interface, in order to
+    remove the dependency on the ZLIB_DLL macro, and to release
+    the new DLL under a different name.
+
+    We chose the name ZLIB1.DLL, where '1' indicates the major
+    zlib version number.  We hope that we will not have to break
+    the binary compatibility again, at least not as long as the
+    zlib-1.x series will last.
+
+    There is still a ZLIB_DLL macro, that can trigger a more
+    efficient build and use of the DLL, but compatibility no
+    longer dependents on it.
+
+
+ 3. Can I build ZLIB.DLL from the new zlib sources, and replace
+    an old ZLIB.DLL, that was built from zlib-1.1.4 or earlier?
+
+  - In principle, you can do it by assigning calling convention
+    keywords to the macros ZEXPORT and ZEXPORTVA.  In practice,
+    it depends on what you mean by "an old ZLIB.DLL", because the
+    old DLL exists in several mutually-incompatible versions.
+    You have to find out first what kind of calling convention is
+    being used in your particular ZLIB.DLL build, and to use the
+    same one in the new build.  If you don't know what this is all
+    about, you might be better off if you would just leave the old
+    DLL intact.
+
+
+ 4. Can I compile my application using the new zlib interface, and
+    link it to an old ZLIB.DLL, that was built from zlib-1.1.4 or
+    earlier?
+
+  - The official answer is "no"; the real answer depends again on
+    what kind of ZLIB.DLL you have.  Even if you are lucky, this
+    course of action is unreliable.
+
+    If you rebuild your application and you intend to use a newer
+    version of zlib (post- 1.1.4), it is strongly recommended to
+    link it to the new ZLIB1.DLL.
+
+
+ 5. Why are the zlib symbols exported by name, and not by ordinal?
+
+  - Although exporting symbols by ordinal is a little faster, it
+    is risky.  Any single glitch in the maintenance or use of the
+    DEF file that contains the ordinals can result in incompatible
+    builds and frustrating crashes.  Simply put, the benefits of
+    exporting symbols by ordinal do not justify the risks.
+
+    Technically, it should be possible to maintain ordinals in
+    the DEF file, and still export the symbols by name.  Ordinals
+    exist in every DLL, and even if the dynamic linking performed
+    at the DLL startup is searching for names, ordinals serve as
+    hints, for a faster name lookup.  However, if the DEF file
+    contains ordinals, the Microsoft linker automatically builds
+    an implib that will cause the executables linked to it to use
+    those ordinals, and not the names.  It is interesting to
+    notice that the GNU linker for Win32 does not suffer from this
+    problem.
+
+    It is possible to avoid the DEF file if the exported symbols
+    are accompanied by a "__declspec(dllexport)" attribute in the
+    source files.  You can do this in zlib by predefining the
+    ZLIB_DLL macro.
+
+
+ 6. I see that the ZLIB1.DLL functions use the "C" (CDECL) calling
+    convention.  Why not use the STDCALL convention?
+    STDCALL is the standard convention in Win32, and I need it in
+    my Visual Basic project!
+
+    (For readability, we use CDECL to refer to the convention
+     triggered by the "__cdecl" keyword, STDCALL to refer to
+     the convention triggered by "__stdcall", and FASTCALL to
+     refer to the convention triggered by "__fastcall".)
+
+  - Most of the native Windows API functions (without varargs) use
+    indeed the WINAPI convention (which translates to STDCALL in
+    Win32), but the standard C functions use CDECL.  If a user
+    application is intrinsically tied to the Windows API (e.g.
+    it calls native Windows API functions such as CreateFile()),
+    sometimes it makes sense to decorate its own functions with
+    WINAPI.  But if ANSI C or POSIX portability is a goal (e.g.
+    it calls standard C functions such as fopen()), it is not a
+    sound decision to request the inclusion of <windows.h>, or to
+    use non-ANSI constructs, for the sole purpose to make the user
+    functions STDCALL-able.
+
+    The functionality offered by zlib is not in the category of
+    "Windows functionality", but is more like "C functionality".
+
+    Technically, STDCALL is not bad; in fact, it is slightly
+    faster than CDECL, and it works with variable-argument
+    functions, just like CDECL.  It is unfortunate that, in spite
+    of using STDCALL in the Windows API, it is not the default
+    convention used by the C compilers that run under Windows.
+    The roots of the problem reside deep inside the unsafety of
+    the K&R-style function prototypes, where the argument types
+    are not specified; but that is another story for another day.
+
+    The remaining fact is that CDECL is the default convention.
+    Even if an explicit convention is hard-coded into the function
+    prototypes inside C headers, problems may appear.  The
+    necessity to expose the convention in users' callbacks is one
+    of these problems.
+
+    The calling convention issues are also important when using
+    zlib in other programming languages.  Some of them, like Ada
+    (GNAT) and Fortran (GNU G77), have C bindings implemented
+    initially on Unix, and relying on the C calling convention.
+    On the other hand, the pre- .NET versions of Microsoft Visual
+    Basic require STDCALL, while Borland Delphi prefers, although
+    it does not require, FASTCALL.
+
+    In fairness to all possible uses of zlib outside the C
+    programming language, we choose the default "C" convention.
+    Anyone interested in different bindings or conventions is
+    encouraged to maintain specialized projects.  The "contrib/"
+    directory from the zlib distribution already holds a couple
+    of foreign bindings, such as Ada, C++, and Delphi.
+
+
+ 7. I need a DLL for my Visual Basic project.  What can I do?
+
+  - Define the ZLIB_WINAPI macro before including "zlib.h", when
+    building both the DLL and the user application (except that
+    you don't need to define anything when using the DLL in Visual
+    Basic).  The ZLIB_WINAPI macro will switch on the WINAPI
+    (STDCALL) convention.  The name of this DLL must be different
+    than the official ZLIB1.DLL.
+
+    Gilles Vollant has contributed a build named ZLIBWAPI.DLL,
+    with the ZLIB_WINAPI macro turned on, and with the minizip
+    functionality built in.  For more information, please read
+    the notes inside "contrib/vstudio/readme.txt", found in the
+    zlib distribution.
+
+
+ 8. I need to use zlib in my Microsoft .NET project.  What can I
+    do?
+
+  - Henrik Ravn has contributed a .NET wrapper around zlib.  Look
+    into contrib/dotzlib/, inside the zlib distribution.
+
+
+ 9. If my application uses ZLIB1.DLL, should I link it to
+    MSVCRT.DLL?  Why?
+
+  - It is not required, but it is recommended to link your
+    application to MSVCRT.DLL, if it uses ZLIB1.DLL.
+
+    The executables (.EXE, .DLL, etc.) that are involved in the
+    same process and are using the C run-time library (i.e. they
+    are calling standard C functions), must link to the same
+    library.  There are several libraries in the Win32 system:
+    CRTDLL.DLL, MSVCRT.DLL, the static C libraries, etc.
+    Since ZLIB1.DLL is linked to MSVCRT.DLL, the executables that
+    depend on it should also be linked to MSVCRT.DLL.
+
+
+10. Why are you saying that ZLIB1.DLL and my application should
+    be linked to the same C run-time (CRT) library?  I linked my
+    application and my DLLs to different C libraries (e.g. my
+    application to a static library, and my DLLs to MSVCRT.DLL),
+    and everything works fine.
+
+  - If a user library invokes only pure Win32 API (accessible via
+    <windows.h> and the related headers), its DLL build will work
+    in any context.  But if this library invokes standard C API,
+    things get more complicated.
+
+    There is a single Win32 library in a Win32 system.  Every
+    function in this library resides in a single DLL module, that
+    is safe to call from anywhere.  On the other hand, there are
+    multiple versions of the C library, and each of them has its
+    own separate internal state.  Standalone executables and user
+    DLLs that call standard C functions must link to a C run-time
+    (CRT) library, be it static or shared (DLL).  Intermixing
+    occurs when an executable (not necessarily standalone) and a
+    DLL are linked to different CRTs, and both are running in the
+    same process.
+
+    Intermixing multiple CRTs is possible, as long as their
+    internal states are kept intact.  The Microsoft Knowledge Base
+    articles KB94248 "HOWTO: Use the C Run-Time" and KB140584
+    "HOWTO: Link with the Correct C Run-Time (CRT) Library"
+    mention the potential problems raised by intermixing.
+
+    If intermixing works for you, it's because your application
+    and DLLs are avoiding the corruption of each of the CRTs'
+    internal states, maybe by careful design, or maybe by fortune.
+
+    Also note that linking ZLIB1.DLL to non-Microsoft CRTs, such
+    as those provided by Borland, raises similar problems.
+
+
+11. Why are you linking ZLIB1.DLL to MSVCRT.DLL?
+
+  - MSVCRT.DLL exists on every Windows 95 with a new service pack
+    installed, or with Microsoft Internet Explorer 4 or later, and
+    on all other Windows 4.x or later (Windows 98, Windows NT 4,
+    or later).  It is freely distributable; if not present in the
+    system, it can be downloaded from Microsoft or from other
+    software provider for free.
+
+    The fact that MSVCRT.DLL does not exist on a virgin Windows 95
+    is not so problematic.  Windows 95 is scarcely found nowadays,
+    Microsoft ended its support a long time ago, and many recent
+    applications from various vendors, including Microsoft, do not
+    even run on it.  Furthermore, no serious user should run
+    Windows 95 without a proper update installed.
+
+
+12. Why are you not linking ZLIB1.DLL to
+    <<my favorite C run-time library>> ?
+
+  - We considered and abandoned the following alternatives:
+
+    * Linking ZLIB1.DLL to a static C library (LIBC.LIB, or
+      LIBCMT.LIB) is not a good option.  People are using the DLL
+      mainly to save disk space.  If you are linking your program
+      to a static C library, you may as well consider linking zlib
+      in statically, too.
+
+    * Linking ZLIB1.DLL to CRTDLL.DLL looks appealing, because
+      CRTDLL.DLL is present on every Win32 installation.
+      Unfortunately, it has a series of problems: it does not
+      work properly with Microsoft's C++ libraries, it does not
+      provide support for 64-bit file offsets, (and so on...),
+      and Microsoft discontinued its support a long time ago.
+
+    * Linking ZLIB1.DLL to MSVCR70.DLL or MSVCR71.DLL, supplied
+      with the Microsoft .NET platform, and Visual C++ 7.0/7.1,
+      raises problems related to the status of ZLIB1.DLL as a
+      system component.  According to the Microsoft Knowledge Base
+      article KB326922 "INFO: Redistribution of the Shared C
+      Runtime Component in Visual C++ .NET", MSVCR70.DLL and
+      MSVCR71.DLL are not supposed to function as system DLLs,
+      because they may clash with MSVCRT.DLL.  Instead, the
+      application's installer is supposed to put these DLLs
+      (if needed) in the application's private directory.
+      If ZLIB1.DLL depends on a non-system runtime, it cannot
+      function as a redistributable system component.
+
+    * Linking ZLIB1.DLL to non-Microsoft runtimes, such as
+      Borland's, or Cygwin's, raises problems related to the
+      reliable presence of these runtimes on Win32 systems.
+      It's easier to let the DLL build of zlib up to the people
+      who distribute these runtimes, and who may proceed as
+      explained in the answer to Question 14.
+
+
+13. If ZLIB1.DLL cannot be linked to MSVCR70.DLL or MSVCR71.DLL,
+    how can I build/use ZLIB1.DLL in Microsoft Visual C++ 7.0
+    (Visual Studio .NET) or newer?
+
+  - Due to the problems explained in the Microsoft Knowledge Base
+    article KB326922 (see the previous answer), the C runtime that
+    comes with the VC7 environment is no longer considered a
+    system component.  That is, it should not be assumed that this
+    runtime exists, or may be installed in a system directory.
+    Since ZLIB1.DLL is supposed to be a system component, it may
+    not depend on a non-system component.
+
+    In order to link ZLIB1.DLL and your application to MSVCRT.DLL
+    in VC7, you need the library of Visual C++ 6.0 or older.  If
+    you don't have this library at hand, it's probably best not to
+    use ZLIB1.DLL.
+
+    We are hoping that, in the future, Microsoft will provide a
+    way to build applications linked to a proper system runtime,
+    from the Visual C++ environment.  Until then, you have a
+    couple of alternatives, such as linking zlib in statically.
+    If your application requires dynamic linking, you may proceed
+    as explained in the answer to Question 14.
+
+
+14. I need to link my own DLL build to a CRT different than
+    MSVCRT.DLL.  What can I do?
+
+  - Feel free to rebuild the DLL from the zlib sources, and link
+    it the way you want.  You should, however, clearly state that
+    your build is unofficial.  You should give it a different file
+    name, and/or install it in a private directory that can be
+    accessed by your application only, and is not visible to the
+    others (i.e. it's neither in the PATH, nor in the SYSTEM or
+    SYSTEM32 directories).  Otherwise, your build may clash with
+    applications that link to the official build.
+
+    For example, in Cygwin, zlib is linked to the Cygwin runtime
+    CYGWIN1.DLL, and it is distributed under the name CYGZ.DLL.
+
+
+15. May I include additional pieces of code that I find useful,
+    link them in ZLIB1.DLL, and export them?
+
+  - No.  A legitimate build of ZLIB1.DLL must not include code
+    that does not originate from the official zlib source code.
+    But you can make your own private DLL build, under a different
+    file name, as suggested in the previous answer.
+
+    For example, zlib is a part of the VCL library, distributed
+    with Borland Delphi and C++ Builder.  The DLL build of VCL
+    is a redistributable file, named VCLxx.DLL.
+
+
+16. May I remove some functionality out of ZLIB1.DLL, by enabling
+    macros like NO_GZCOMPRESS or NO_GZIP at compile time?
+
+  - No.  A legitimate build of ZLIB1.DLL must provide the complete
+    zlib functionality, as implemented in the official zlib source
+    code.  But you can make your own private DLL build, under a
+    different file name, as suggested in the previous answer.
+
+**
+
+This document is written and maintained by
+Cosmin Truta <cosmint@cs.ubbcluj.ro>
diff --git a/compat/zlib/win32/Makefile.bor b/compat/zlib/win32/Makefile.bor
new file mode 100644
index 0000000..4495353
--- /dev/null
+++ b/compat/zlib/win32/Makefile.bor
@@ -0,0 +1,109 @@
+# Makefile for zlib
+# Borland C++ for Win32
+#
+# Usage:
+#  make -f win32/Makefile.bor
+
+# ------------ Borland C++ ------------
+
+# Optional nonstandard preprocessor flags (e.g. -DMAX_MEM_LEVEL=7)
+# should be added to the environment via "set LOCAL_ZLIB=-DFOO" or
+# added to the declaration of LOC here:
+LOC = $(LOCAL_ZLIB)
+
+CC = bcc32
+AS = bcc32
+LD = bcc32
+AR = tlib
+CFLAGS  = -a -d -k- -O2 $(LOC)
+ASFLAGS = $(LOC)
+LDFLAGS = $(LOC)
+
+
+# variables
+ZLIB_LIB = zlib.lib
+
+OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj
+OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
+#OBJA =
+OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzclose.obj+gzlib.obj+gzread.obj
+OBJP2 = +gzwrite.obj+infback.obj+inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj
+#OBJPA=
+
+
+# targets
+all: $(ZLIB_LIB) example.exe minigzip.exe
+
+.c.obj:
+	$(CC) -c $(CFLAGS) $<
+
+.asm.obj:
+	$(AS) -c $(ASFLAGS) $<
+
+adler32.obj: adler32.c zlib.h zconf.h
+
+compress.obj: compress.c zlib.h zconf.h
+
+crc32.obj: crc32.c zlib.h zconf.h crc32.h
+
+deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
+
+gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h
+
+gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h
+
+gzread.obj: gzread.c zlib.h zconf.h gzguts.h
+
+gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h
+
+infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h
+
+inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
+
+trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
+
+uncompr.obj: uncompr.c zlib.h zconf.h
+
+zutil.obj: zutil.c zutil.h zlib.h zconf.h
+
+example.obj: test/example.c zlib.h zconf.h
+
+minigzip.obj: test/minigzip.c zlib.h zconf.h
+
+
+# For the sake of the old Borland make,
+# the command line is cut to fit in the MS-DOS 128 byte limit:
+$(ZLIB_LIB): $(OBJ1) $(OBJ2) $(OBJA)
+	-del $(ZLIB_LIB)
+	$(AR) $(ZLIB_LIB) $(OBJP1)
+	$(AR) $(ZLIB_LIB) $(OBJP2)
+	$(AR) $(ZLIB_LIB) $(OBJPA)
+
+
+# testing
+test: example.exe minigzip.exe
+	example
+	echo hello world | minigzip | minigzip -d
+
+example.exe: example.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) example.obj $(ZLIB_LIB)
+
+minigzip.exe: minigzip.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB)
+
+
+# cleanup
+clean:
+	-del $(ZLIB_LIB)
+	-del *.obj
+	-del *.exe
+	-del *.tds
+	-del zlib.bak
+	-del foo.gz
diff --git a/compat/zlib/win32/Makefile.gcc b/compat/zlib/win32/Makefile.gcc
new file mode 100644
index 0000000..081e391
--- /dev/null
+++ b/compat/zlib/win32/Makefile.gcc
@@ -0,0 +1,177 @@
+# Makefile for zlib, derived from Makefile.dj2.
+# Modified for mingw32 by C. Spieler, 6/16/98.
+# Updated for zlib 1.2.x by Christian Spieler and Cosmin Truta, Mar-2003.
+# Last updated: Mar 2012.
+# Tested under Cygwin and MinGW.
+
+# Copyright (C) 1995-2003 Jean-loup Gailly.
+# For conditions of distribution and use, see copyright notice in zlib.h
+
+# To compile, or to compile and test, type from the top level zlib directory:
+#
+#   make -fwin32/Makefile.gcc;  make test testdll -fwin32/Makefile.gcc
+#
+# To install libz.a, zconf.h and zlib.h in the system directories, type:
+#
+#   make install -fwin32/Makefile.gcc
+#
+# BINARY_PATH, INCLUDE_PATH and LIBRARY_PATH must be set.
+#
+# To install the shared lib, append SHARED_MODE=1 to the make command :
+#
+#   make install -fwin32/Makefile.gcc SHARED_MODE=1
+
+# Note:
+# If the platform is *not* MinGW (e.g. it is Cygwin or UWIN),
+# the DLL name should be changed from "zlib1.dll".
+
+STATICLIB = libz.a
+SHAREDLIB = zlib1.dll
+IMPLIB    = libz.dll.a
+
+#
+# Set to 1 if shared object needs to be installed
+#
+SHARED_MODE=0
+
+#LOC = -DZLIB_DEBUG -g
+
+PREFIX =
+CC = $(PREFIX)gcc
+CFLAGS = $(LOC) -O3 -Wall
+
+AS = $(CC)
+ASFLAGS = $(LOC) -Wall
+
+LD = $(CC)
+LDFLAGS = $(LOC)
+
+AR = $(PREFIX)ar
+ARFLAGS = rcs
+
+RC = $(PREFIX)windres
+RCFLAGS = --define GCC_WINDRES
+
+STRIP = $(PREFIX)strip
+
+CP = cp -fp
+# If GNU install is available, replace $(CP) with install.
+INSTALL = $(CP)
+RM = rm -f
+
+prefix ?= /usr/local
+exec_prefix = $(prefix)
+
+OBJS = adler32.o compress.o crc32.o deflate.o gzclose.o gzlib.o gzread.o \
+       gzwrite.o infback.o inffast.o inflate.o inftrees.o trees.o uncompr.o zutil.o
+OBJA =
+
+all: $(STATICLIB) $(SHAREDLIB) $(IMPLIB) example.exe minigzip.exe example_d.exe minigzip_d.exe
+
+test: example.exe minigzip.exe
+	./example
+	echo hello world | ./minigzip | ./minigzip -d
+
+testdll: example_d.exe minigzip_d.exe
+	./example_d
+	echo hello world | ./minigzip_d | ./minigzip_d -d
+
+.c.o:
+	$(CC) $(CFLAGS) -c -o $@ $<
+
+.S.o:
+	$(AS) $(ASFLAGS) -c -o $@ $<
+
+$(STATICLIB): $(OBJS) $(OBJA)
+	$(AR) $(ARFLAGS) $@ $(OBJS) $(OBJA)
+
+$(IMPLIB): $(SHAREDLIB)
+
+$(SHAREDLIB): win32/zlib.def $(OBJS) $(OBJA) zlibrc.o
+	$(CC) -shared -Wl,--out-implib,$(IMPLIB) $(LDFLAGS) \
+	-o $@ win32/zlib.def $(OBJS) $(OBJA) zlibrc.o
+	$(STRIP) $@
+
+example.exe: example.o $(STATICLIB)
+	$(LD) $(LDFLAGS) -o $@ example.o $(STATICLIB)
+	$(STRIP) $@
+
+minigzip.exe: minigzip.o $(STATICLIB)
+	$(LD) $(LDFLAGS) -o $@ minigzip.o $(STATICLIB)
+	$(STRIP) $@
+
+example_d.exe: example.o $(IMPLIB)
+	$(LD) $(LDFLAGS) -o $@ example.o $(IMPLIB)
+	$(STRIP) $@
+
+minigzip_d.exe: minigzip.o $(IMPLIB)
+	$(LD) $(LDFLAGS) -o $@ minigzip.o $(IMPLIB)
+	$(STRIP) $@
+
+example.o: test/example.c zlib.h zconf.h
+	$(CC) $(CFLAGS) -I. -c -o $@ test/example.c
+
+minigzip.o: test/minigzip.c zlib.h zconf.h
+	$(CC) $(CFLAGS) -I. -c -o $@ test/minigzip.c
+
+zlibrc.o: win32/zlib1.rc
+	$(RC) $(RCFLAGS) -o $@ win32/zlib1.rc
+
+.PHONY: install uninstall clean
+
+install: zlib.h zconf.h $(STATICLIB) $(IMPLIB)
+	@if test -z "$(DESTDIR)$(INCLUDE_PATH)" -o -z "$(DESTDIR)$(LIBRARY_PATH)" -o -z "$(DESTDIR)$(BINARY_PATH)"; then \
+		echo INCLUDE_PATH, LIBRARY_PATH, and BINARY_PATH must be specified; \
+		exit 1; \
+	fi
+	-@mkdir -p '$(DESTDIR)$(INCLUDE_PATH)'
+	-@mkdir -p '$(DESTDIR)$(LIBRARY_PATH)' '$(DESTDIR)$(LIBRARY_PATH)'/pkgconfig
+	-if [ "$(SHARED_MODE)" = "1" ]; then \
+		mkdir -p '$(DESTDIR)$(BINARY_PATH)'; \
+		$(INSTALL) $(SHAREDLIB) '$(DESTDIR)$(BINARY_PATH)'; \
+		$(INSTALL) $(IMPLIB) '$(DESTDIR)$(LIBRARY_PATH)'; \
+	fi
+	-$(INSTALL) zlib.h '$(DESTDIR)$(INCLUDE_PATH)'
+	-$(INSTALL) zconf.h '$(DESTDIR)$(INCLUDE_PATH)'
+	-$(INSTALL) $(STATICLIB) '$(DESTDIR)$(LIBRARY_PATH)'
+	sed \
+		-e 's|@prefix@|${prefix}|g' \
+		-e 's|@exec_prefix@|${exec_prefix}|g' \
+		-e 's|@libdir@|$(LIBRARY_PATH)|g' \
+		-e 's|@sharedlibdir@|$(LIBRARY_PATH)|g' \
+		-e 's|@includedir@|$(INCLUDE_PATH)|g' \
+		-e 's|@VERSION@|'`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' zlib.h`'|g' \
+		zlib.pc.in > '$(DESTDIR)$(LIBRARY_PATH)'/pkgconfig/zlib.pc
+
+uninstall:
+	-if [ "$(SHARED_MODE)" = "1" ]; then \
+		$(RM) '$(DESTDIR)$(BINARY_PATH)'/$(SHAREDLIB); \
+		$(RM) '$(DESTDIR)$(LIBRARY_PATH)'/$(IMPLIB); \
+	fi
+	-$(RM) '$(DESTDIR)$(INCLUDE_PATH)'/zlib.h
+	-$(RM) '$(DESTDIR)$(INCLUDE_PATH)'/zconf.h
+	-$(RM) '$(DESTDIR)$(LIBRARY_PATH)'/$(STATICLIB)
+
+clean:
+	-$(RM) $(STATICLIB)
+	-$(RM) $(SHAREDLIB)
+	-$(RM) $(IMPLIB)
+	-$(RM) *.o
+	-$(RM) *.exe
+	-$(RM) foo.gz
+
+adler32.o: zlib.h zconf.h
+compress.o: zlib.h zconf.h
+crc32.o: crc32.h zlib.h zconf.h
+deflate.o: deflate.h zutil.h zlib.h zconf.h
+gzclose.o: zlib.h zconf.h gzguts.h
+gzlib.o: zlib.h zconf.h gzguts.h
+gzread.o: zlib.h zconf.h gzguts.h
+gzwrite.o: zlib.h zconf.h gzguts.h
+inffast.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+inflate.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+infback.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+inftrees.o: zutil.h zlib.h zconf.h inftrees.h
+trees.o: deflate.h zutil.h zlib.h zconf.h trees.h
+uncompr.o: zlib.h zconf.h
+zutil.o: zutil.h zlib.h zconf.h
diff --git a/compat/zlib/win32/Makefile.msc b/compat/zlib/win32/Makefile.msc
new file mode 100644
index 0000000..9c65153
--- /dev/null
+++ b/compat/zlib/win32/Makefile.msc
@@ -0,0 +1,159 @@
+# Makefile for zlib using Microsoft (Visual) C
+# zlib is copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler
+#
+# Usage:
+#   nmake -f win32/Makefile.msc                          (standard build)
+#   nmake -f win32/Makefile.msc LOC=-DFOO                (nonstandard build)
+
+# The toplevel directory of the source tree.
+#
+TOP = .
+
+# optional build flags
+LOC =
+
+# variables
+STATICLIB = zlib.lib
+SHAREDLIB = zlib1.dll
+IMPLIB    = zdll.lib
+
+CC = cl
+AS = ml
+LD = link
+AR = lib
+RC = rc
+CFLAGS  = -nologo -MD -W3 -O2 -Oy- -Zi -Fd"zlib" $(LOC)
+WFLAGS  = -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE
+ASFLAGS = -coff -Zi $(LOC)
+LDFLAGS = -nologo -debug -incremental:no -opt:ref
+ARFLAGS = -nologo
+RCFLAGS = /dWIN32 /r
+
+OBJS = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj \
+       gzwrite.obj infback.obj inflate.obj inftrees.obj inffast.obj trees.obj uncompr.obj zutil.obj
+OBJA =
+
+
+# targets
+all: $(STATICLIB) $(SHAREDLIB) $(IMPLIB) \
+     example.exe minigzip.exe example_d.exe minigzip_d.exe
+
+$(STATICLIB): $(OBJS) $(OBJA)
+	$(AR) $(ARFLAGS) -out:$@ $(OBJS) $(OBJA)
+
+$(IMPLIB): $(SHAREDLIB)
+
+$(SHAREDLIB): $(TOP)/win32/zlib.def $(OBJS) $(OBJA) zlib1.res
+	$(LD) $(LDFLAGS) -def:$(TOP)/win32/zlib.def -dll -implib:$(IMPLIB) \
+	  -out:$@ -base:0x5A4C0000 $(OBJS) $(OBJA) zlib1.res
+	if exist $@.manifest \
+	  mt -nologo -manifest $@.manifest -outputresource:$@;2
+
+example.exe: example.obj $(STATICLIB)
+	$(LD) $(LDFLAGS) example.obj $(STATICLIB)
+	if exist $@.manifest \
+	  mt -nologo -manifest $@.manifest -outputresource:$@;1
+
+minigzip.exe: minigzip.obj $(STATICLIB)
+	$(LD) $(LDFLAGS) minigzip.obj $(STATICLIB)
+	if exist $@.manifest \
+	  mt -nologo -manifest $@.manifest -outputresource:$@;1
+
+example_d.exe: example.obj $(IMPLIB)
+	$(LD) $(LDFLAGS) -out:$@ example.obj $(IMPLIB)
+	if exist $@.manifest \
+	  mt -nologo -manifest $@.manifest -outputresource:$@;1
+
+minigzip_d.exe: minigzip.obj $(IMPLIB)
+	$(LD) $(LDFLAGS) -out:$@ minigzip.obj $(IMPLIB)
+	if exist $@.manifest \
+	  mt -nologo -manifest $@.manifest -outputresource:$@;1
+
+{$(TOP)}.c.obj:
+	$(CC) -c $(WFLAGS) $(CFLAGS) $<
+
+{$(TOP)/test}.c.obj:
+	$(CC) -c -I$(TOP) $(WFLAGS) $(CFLAGS) $<
+
+{$(TOP)/contrib/masmx64}.c.obj:
+	$(CC) -c $(WFLAGS) $(CFLAGS) $<
+
+{$(TOP)/contrib/masmx64}.asm.obj:
+	$(AS) -c $(ASFLAGS) $<
+
+{$(TOP)/contrib/masmx86}.asm.obj:
+	$(AS) -c $(ASFLAGS) $<
+
+adler32.obj: $(TOP)/adler32.c $(TOP)/zlib.h $(TOP)/zconf.h
+
+compress.obj: $(TOP)/compress.c $(TOP)/zlib.h $(TOP)/zconf.h
+
+crc32.obj: $(TOP)/crc32.c $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/crc32.h
+
+deflate.obj: $(TOP)/deflate.c $(TOP)/deflate.h $(TOP)/zutil.h $(TOP)/zlib.h $(TOP)/zconf.h
+
+gzclose.obj: $(TOP)/gzclose.c $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/gzguts.h
+
+gzlib.obj: $(TOP)/gzlib.c $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/gzguts.h
+
+gzread.obj: $(TOP)/gzread.c $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/gzguts.h
+
+gzwrite.obj: $(TOP)/gzwrite.c $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/gzguts.h
+
+infback.obj: $(TOP)/infback.c $(TOP)/zutil.h $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/inftrees.h $(TOP)/inflate.h \
+             $(TOP)/inffast.h $(TOP)/inffixed.h
+
+inffast.obj: $(TOP)/inffast.c $(TOP)/zutil.h $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/inftrees.h $(TOP)/inflate.h \
+             $(TOP)/inffast.h
+
+inflate.obj: $(TOP)/inflate.c $(TOP)/zutil.h $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/inftrees.h $(TOP)/inflate.h \
+             $(TOP)/inffast.h $(TOP)/inffixed.h
+
+inftrees.obj: $(TOP)/inftrees.c $(TOP)/zutil.h $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/inftrees.h
+
+trees.obj: $(TOP)/trees.c $(TOP)/zutil.h $(TOP)/zlib.h $(TOP)/zconf.h $(TOP)/deflate.h $(TOP)/trees.h
+
+uncompr.obj: $(TOP)/uncompr.c $(TOP)/zlib.h $(TOP)/zconf.h
+
+zutil.obj: $(TOP)/zutil.c $(TOP)/zutil.h $(TOP)/zlib.h $(TOP)/zconf.h
+
+gvmat64.obj: $(TOP)/contrib\masmx64\gvmat64.asm
+
+inffasx64.obj: $(TOP)/contrib\masmx64\inffasx64.asm
+
+inffas8664.obj: $(TOP)/contrib\masmx64\inffas8664.c $(TOP)/zutil.h $(TOP)/zlib.h $(TOP)/zconf.h \
+		$(TOP)/inftrees.h $(TOP)/inflate.h $(TOP)/inffast.h
+
+inffas32.obj: $(TOP)/contrib\masmx86\inffas32.asm
+
+match686.obj: $(TOP)/contrib\masmx86\match686.asm
+
+example.obj: $(TOP)/test/example.c $(TOP)/zlib.h $(TOP)/zconf.h
+
+minigzip.obj: $(TOP)/test/minigzip.c $(TOP)/zlib.h $(TOP)/zconf.h
+
+zlib1.res: $(TOP)/win32/zlib1.rc
+	$(RC) $(RCFLAGS) /fo$@ $(TOP)/win32/zlib1.rc
+
+# testing
+test: example.exe minigzip.exe
+	example
+	echo hello world | minigzip | minigzip -d
+
+testdll: example_d.exe minigzip_d.exe
+	example_d
+	echo hello world | minigzip_d | minigzip_d -d
+
+
+# cleanup
+clean:
+	-del $(STATICLIB)
+	-del $(SHAREDLIB)
+	-del $(IMPLIB)
+	-del *.obj
+	-del *.res
+	-del *.exp
+	-del *.exe
+	-del *.pdb
+	-del *.manifest
+	-del foo.gz
diff --git a/compat/zlib/win32/README-WIN32.txt b/compat/zlib/win32/README-WIN32.txt
new file mode 100644
index 0000000..14e6398
--- /dev/null
+++ b/compat/zlib/win32/README-WIN32.txt
@@ -0,0 +1,103 @@
+ZLIB DATA COMPRESSION LIBRARY
+
+zlib 1.3.1 is a general purpose data compression library.  All the code is
+thread safe.  The data format used by the zlib library is described by RFCs
+(Request for Comments) 1950 to 1952 in the files
+http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate format)
+and rfc1952.txt (gzip format).
+
+All functions of the compression library are documented in the file zlib.h
+(volunteer to write man pages welcome, contact zlib@gzip.org).  Two compiled
+examples are distributed in this package, example and minigzip.  The example_d
+and minigzip_d flavors validate that the zlib1.dll file is working correctly.
+
+Questions about zlib should be sent to <zlib@gzip.org>.  The zlib home page
+is http://zlib.net/ .  Before reporting a problem, please check this site to
+verify that you have the latest version of zlib; otherwise get the latest
+version and check whether the problem still exists or not.
+
+PLEASE read DLL_FAQ.txt, and the zlib FAQ http://zlib.net/zlib_faq.html before
+asking for help.
+
+
+Manifest:
+
+The package zlib-1.3.1-win32-x86.zip will contain the following files:
+
+  README-WIN32.txt This document
+  ChangeLog        Changes since previous zlib packages
+  DLL_FAQ.txt      Frequently asked questions about zlib1.dll
+  zlib.3.pdf       Documentation of this library in Adobe Acrobat format
+
+  example.exe      A statically-bound example (using zlib.lib, not the dll)
+  example.pdb      Symbolic information for debugging example.exe
+
+  example_d.exe    A zlib1.dll bound example (using zdll.lib)
+  example_d.pdb    Symbolic information for debugging example_d.exe
+
+  minigzip.exe     A statically-bound test program (using zlib.lib, not the dll)
+  minigzip.pdb     Symbolic information for debugging minigzip.exe
+
+  minigzip_d.exe   A zlib1.dll bound test program (using zdll.lib)
+  minigzip_d.pdb   Symbolic information for debugging minigzip_d.exe
+
+  zlib.h           Install these files into the compilers' INCLUDE path to
+  zconf.h          compile programs which use zlib.lib or zdll.lib
+
+  zdll.lib         Install these files into the compilers' LIB path if linking
+  zdll.exp         a compiled program to the zlib1.dll binary
+
+  zlib.lib         Install these files into the compilers' LIB path to link zlib
+  zlib.pdb         into compiled programs, without zlib1.dll runtime dependency
+                   (zlib.pdb provides debugging info to the compile time linker)
+
+  zlib1.dll        Install this binary shared library into the system PATH, or
+                   the program's runtime directory (where the .exe resides)
+  zlib1.pdb        Install in the same directory as zlib1.dll, in order to debug
+                   an application crash using WinDbg or similar tools.
+
+All .pdb files above are entirely optional, but are very useful to a developer
+attempting to diagnose program misbehavior or a crash.  Many additional
+important files for developers can be found in the zlib127.zip source package
+available from http://zlib.net/ - review that package's README file for details.
+
+
+Acknowledgments:
+
+The deflate format used by zlib was defined by Phil Katz.  The deflate and
+zlib specifications were written by L.  Peter Deutsch.  Thanks to all the
+people who reported problems and suggested various improvements in zlib; they
+are too numerous to cite here.
+
+
+Copyright notice:
+
+  (C) 1995-2017 Jean-loup Gailly and Mark Adler
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Jean-loup Gailly        Mark Adler
+  jloup@gzip.org          madler@alumni.caltech.edu
+
+If you use the zlib library in a product, we would appreciate *not* receiving
+lengthy legal documents to sign.  The sources are provided for free but without
+warranty of any kind.  The library has been entirely written by Jean-loup
+Gailly and Mark Adler; it does not include third-party code.
+
+If you redistribute modified sources, we would appreciate that you include in
+the file ChangeLog history information documenting your changes.  Please read
+the FAQ for more information on the distribution of modified source versions.
diff --git a/compat/zlib/win32/README.txt b/compat/zlib/win32/README.txt
new file mode 100644
index 0000000..2f0f74b
--- /dev/null
+++ b/compat/zlib/win32/README.txt
@@ -0,0 +1,60 @@
+
+What's here
+===========
+  The official ZLIB1.DLL
+
+
+Source
+======
+  zlib version 1.3.1
+  available at http://www.gzip.org/zlib/
+
+
+Specification and rationale
+===========================
+  See the accompanying DLL_FAQ.txt
+
+
+Usage
+=====
+  See the accompanying USAGE.txt
+
+
+Build info
+==========
+  Contributed by Jan Nijtmans.
+
+  Compiler:
+    i686-w64-mingw32-gcc (GCC) 5.4.0
+  Library:
+    mingw64-i686-runtime/headers: 5.0.0
+  Build commands:
+    i686-w64-mingw32-gcc -c -DASMV contrib/asm686/match.S
+    i686-w64-mingw32-gcc -c -DASMINF -I. -O3 contrib/inflate86/inffas86.c
+    make -f win32/Makefile.gcc PREFIX=i686-w64-mingw32- LOC="-mms-bitfields -DASMV -DASMINF" OBJA="inffas86.o match.o"
+   Finally, from VS commandline (VS2005 or higher):
+    lib -machine:X86 -name:zlib1.dll -def:zlib.def -out:zdll.lib
+
+Copyright notice
+================
+  Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Jean-loup Gailly        Mark Adler
+  jloup@gzip.org          madler@alumni.caltech.edu
+
diff --git a/compat/zlib/win32/USAGE.txt b/compat/zlib/win32/USAGE.txt
new file mode 100644
index 0000000..22829eb
--- /dev/null
+++ b/compat/zlib/win32/USAGE.txt
@@ -0,0 +1,97 @@
+
+Installing ZLIB1.DLL
+====================
+  Copy ZLIB1.DLL to the SYSTEM or the SYSTEM32 directory.
+  
+  If you want to install the 32-bit dll on a 64-bit
+  machine, use the SysWOW64 directory instead.
+
+
+Using ZLIB1.DLL with Microsoft Visual C++
+=========================================
+   1. Install the supplied header files "zlib.h" and "zconf.h"
+      into a directory found in the INCLUDE path list.
+
+   2. Install the supplied library file "zdll.lib" into a
+      directory found in the LIB path list.
+
+   3. Add "zdll.lib" to your project.
+
+
+Using ZLIB1.DLL with gcc/MinGW
+==============================
+   1. Install the supplied header files "zlib.h" and "zconf.h"
+      into the INCLUDE directory.
+
+   2. (32-bit): Copy the supplied library file "zdll.lib" to "libzdll.a":
+        cp lib/zdll.lib lib/libzdll.a
+
+      OR
+
+   2'. (64-bit): Copy the supplied library file "libz.dll.a" to "libzdll.a":
+        cp lib/libz.dll.a lib/libzdll.a
+
+      OR
+
+   2'' Build the import library from the supplied "zlib.def":
+        dlltool -D zlib1.dll -d lib/zlib.def -l lib/libzdll.a
+
+   3. Install "libzdll.a" into the LIB directory.
+
+   4. Add "libzdll.a" to your project, or use the -lzdll option.
+
+
+Using ZLIB1.DLL with gcc/Cygwin
+===============================
+  ZLIB1.DLL is not designed to work with Cygwin.  The Cygwin
+  system has its own DLL build of zlib, named CYGZ.DLL.
+
+
+Using ZLIB1.DLL with Borland C++
+================================
+   1. Install the supplied header files "zlib.h" and "zconf.h"
+      into a directory found in the INCLUDE path list.
+
+   2. Build the import library using the IMPLIB tool:
+        implib -a -c -f lib\zdllbor.lib zlib1.dll
+
+      OR
+
+   2' Convert the supplied library file "zdll.lib" to OMF format,
+      using the COFF2OMF tool:
+        coff2omf lib\zdll.lib lib\zdllbor.lib
+
+   3. Install "zdllbor.lib" into a directory found in the LIB path
+      list.
+
+   4. Add "zdllbor.lib" to your project.
+
+  Notes:
+  - The modules that are linked with "zdllbor.lib" must be compiled
+    using a 4-byte alignment (option -a):
+        bcc32 -a -c myprog.c
+        bcc32 myprog.obj zdllbor.lib
+  - If you wish, you may use "zlib1.lib" instead of "zdllbor.lib".
+
+
+Rebuilding ZLIB1.DLL
+====================
+  Depending on your build environment, use the appropriate
+  makefile from the win32/ directory, found in the zlib source
+  distribution.
+
+  Your custom build has to comply with the requirements stated
+  in DLL_FAQ.txt, including (but not limited to) the following:
+    - It must be built from an unaltered zlib source distribution.
+    - It must be linked to MSVCRT.DLL.
+    - The macros that compile out certain portions of the zlib
+      code (such as NO_GZCOMPRESS, NO_GZIP) must not be enabled.
+    - The ZLIB_WINAPI macro must not be enabled.
+
+  Furthermore, it has to run successfully with the test suite
+  found in this package.
+
+  It is recommended, however, to use the supplied ZLIB1.DLL,
+  instead of rebuilding it yourself.  You should rebuild it
+  only if you have a special reason.
+
diff --git a/compat/zlib/win32/VisualC.txt b/compat/zlib/win32/VisualC.txt
new file mode 100644
index 0000000..1005b21
--- /dev/null
+++ b/compat/zlib/win32/VisualC.txt
@@ -0,0 +1,3 @@
+
+To build zlib using the Microsoft Visual C++ environment,
+use the appropriate project from the contrib/vstudio/ directory.
diff --git a/compat/zlib/win32/zdll.lib b/compat/zlib/win32/zdll.lib
new file mode 100644
index 0000000..d7966ab
--- /dev/null
+++ b/compat/zlib/win32/zdll.lib
diff --git a/compat/zlib/win32/zlib.def b/compat/zlib/win32/zlib.def
new file mode 100644
index 0000000..53c8011
--- /dev/null
+++ b/compat/zlib/win32/zlib.def
@@ -0,0 +1,97 @@
+; zlib data compression library
+EXPORTS
+; basic functions
+    zlibVersion
+    deflate
+    deflateEnd
+    inflate
+    inflateEnd
+; advanced functions
+    deflateSetDictionary
+    deflateGetDictionary
+    deflateCopy
+    deflateReset
+    deflateParams
+    deflateTune
+    deflateBound
+    deflatePending
+    deflatePrime
+    deflateSetHeader
+    inflateSetDictionary
+    inflateGetDictionary
+    inflateSync
+    inflateCopy
+    inflateReset
+    inflateReset2
+    inflatePrime
+    inflateMark
+    inflateGetHeader
+    inflateBack
+    inflateBackEnd
+    zlibCompileFlags
+; utility functions
+    compress
+    compress2
+    compressBound
+    uncompress
+    uncompress2
+    gzopen
+    gzdopen
+    gzbuffer
+    gzsetparams
+    gzread
+    gzfread
+    gzwrite
+    gzfwrite
+    gzprintf
+    gzvprintf
+    gzputs
+    gzgets
+    gzputc
+    gzgetc
+    gzungetc
+    gzflush
+    gzseek
+    gzrewind
+    gztell
+    gzoffset
+    gzeof
+    gzdirect
+    gzclose
+    gzclose_r
+    gzclose_w
+    gzerror
+    gzclearerr
+; large file functions
+    gzopen64
+    gzseek64
+    gztell64
+    gzoffset64
+    adler32_combine64
+    crc32_combine64
+    crc32_combine_gen64
+; checksum functions
+    adler32
+    adler32_z
+    crc32
+    crc32_z
+    adler32_combine
+    crc32_combine
+    crc32_combine_gen
+    crc32_combine_op
+; various hacks, don't look :)
+    deflateInit_
+    deflateInit2_
+    inflateInit_
+    inflateInit2_
+    inflateBackInit_
+    gzgetc_
+    zError
+    inflateSyncPoint
+    get_crc_table
+    inflateUndermine
+    inflateValidate
+    inflateCodesUsed
+    inflateResetKeep
+    deflateResetKeep
+    gzopen_w
diff --git a/compat/zlib/win32/zlib1.dll b/compat/zlib/win32/zlib1.dll
new file mode 100755
index 0000000..818ea24
--- /dev/null
+++ b/compat/zlib/win32/zlib1.dll
diff --git a/compat/zlib/win32/zlib1.rc b/compat/zlib/win32/zlib1.rc
new file mode 100644
index 0000000..ceb4ee5
--- /dev/null
+++ b/compat/zlib/win32/zlib1.rc
@@ -0,0 +1,40 @@
+#include <winver.h>
+#include "../zlib.h"
+
+#ifdef GCC_WINDRES
+VS_VERSION_INFO		VERSIONINFO
+#else
+VS_VERSION_INFO		VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
+#endif
+  FILEVERSION		ZLIB_VER_MAJOR,ZLIB_VER_MINOR,ZLIB_VER_REVISION,0
+  PRODUCTVERSION	ZLIB_VER_MAJOR,ZLIB_VER_MINOR,ZLIB_VER_REVISION,0
+  FILEFLAGSMASK		VS_FFI_FILEFLAGSMASK
+#ifdef _DEBUG
+  FILEFLAGS		1
+#else
+  FILEFLAGS		0
+#endif
+  FILEOS		VOS__WINDOWS32
+  FILETYPE		VFT_DLL
+  FILESUBTYPE		0	// not used
+BEGIN
+  BLOCK "StringFileInfo"
+  BEGIN
+    BLOCK "040904E4"
+    //language ID = U.S. English, char set = Windows, Multilingual
+    BEGIN
+      VALUE "FileDescription",	"zlib data compression library\0"
+      VALUE "FileVersion",	ZLIB_VERSION "\0"
+      VALUE "InternalName",	"zlib1.dll\0"
+      VALUE "LegalCopyright",	"(C) 1995-2022 Jean-loup Gailly & Mark Adler\0"
+      VALUE "OriginalFilename",	"zlib1.dll\0"
+      VALUE "ProductName",	"zlib\0"
+      VALUE "ProductVersion",	ZLIB_VERSION "\0"
+      VALUE "Comments",		"For more information visit http://www.zlib.net/\0"
+    END
+  END
+  BLOCK "VarFileInfo"
+  BEGIN
+    VALUE "Translation", 0x0409, 1252
+  END
+END
diff --git a/compat/zlib/win64-arm/libz.dll.a b/compat/zlib/win64-arm/libz.dll.a
new file mode 100644
index 0000000..476c00f
--- /dev/null
+++ b/compat/zlib/win64-arm/libz.dll.a
diff --git a/compat/zlib/win64-arm/zdll.lib b/compat/zlib/win64-arm/zdll.lib
new file mode 100644
index 0000000..f0fc668
--- /dev/null
+++ b/compat/zlib/win64-arm/zdll.lib
diff --git a/compat/zlib/win64-arm/zlib1.dll b/compat/zlib/win64-arm/zlib1.dll
new file mode 100755
index 0000000..416ca3c
--- /dev/null
+++ b/compat/zlib/win64-arm/zlib1.dll
diff --git a/compat/zlib/win64/libz.dll.a b/compat/zlib/win64/libz.dll.a
new file mode 100644
index 0000000..6357809
--- /dev/null
+++ b/compat/zlib/win64/libz.dll.a
diff --git a/compat/zlib/win64/zdll.lib b/compat/zlib/win64/zdll.lib
new file mode 100644
index 0000000..1ac4ba9
--- /dev/null
+++ b/compat/zlib/win64/zdll.lib
diff --git a/compat/zlib/win64/zlib1.dll b/compat/zlib/win64/zlib1.dll
new file mode 100755
index 0000000..66289fb
--- /dev/null
+++ b/compat/zlib/win64/zlib1.dll
diff --git a/compat/zlib/zconf.h b/compat/zlib/zconf.h
new file mode 100644
index 0000000..62adc8d
--- /dev/null
+++ b/compat/zlib/zconf.h
@@ -0,0 +1,543 @@
+/* zconf.h -- configuration of the zlib compression library
+ * Copyright (C) 1995-2024 Jean-loup Gailly, Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#ifndef ZCONF_H
+#define ZCONF_H
+
+/*
+ * If you *really* need a unique prefix for all types and library functions,
+ * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
+ * Even better than compiling with -DZ_PREFIX would be to use configure to set
+ * this permanently in zconf.h using "./configure --zprefix".
+ */
+#ifdef Z_PREFIX     /* may be set to #if 1 by ./configure */
+#  define Z_PREFIX_SET
+
+/* all linked symbols and init macros */
+#  define _dist_code            z__dist_code
+#  define _length_code          z__length_code
+#  define _tr_align             z__tr_align
+#  define _tr_flush_bits        z__tr_flush_bits
+#  define _tr_flush_block       z__tr_flush_block
+#  define _tr_init              z__tr_init
+#  define _tr_stored_block      z__tr_stored_block
+#  define _tr_tally             z__tr_tally
+#  define adler32               z_adler32
+#  define adler32_combine       z_adler32_combine
+#  define adler32_combine64     z_adler32_combine64
+#  define adler32_z             z_adler32_z
+#  ifndef Z_SOLO
+#    define compress              z_compress
+#    define compress2             z_compress2
+#    define compressBound         z_compressBound
+#  endif
+#  define crc32                 z_crc32
+#  define crc32_combine         z_crc32_combine
+#  define crc32_combine64       z_crc32_combine64
+#  define crc32_combine_gen     z_crc32_combine_gen
+#  define crc32_combine_gen64   z_crc32_combine_gen64
+#  define crc32_combine_op      z_crc32_combine_op
+#  define crc32_z               z_crc32_z
+#  define deflate               z_deflate
+#  define deflateBound          z_deflateBound
+#  define deflateCopy           z_deflateCopy
+#  define deflateEnd            z_deflateEnd
+#  define deflateGetDictionary  z_deflateGetDictionary
+#  define deflateInit           z_deflateInit
+#  define deflateInit2          z_deflateInit2
+#  define deflateInit2_         z_deflateInit2_
+#  define deflateInit_          z_deflateInit_
+#  define deflateParams         z_deflateParams
+#  define deflatePending        z_deflatePending
+#  define deflatePrime          z_deflatePrime
+#  define deflateReset          z_deflateReset
+#  define deflateResetKeep      z_deflateResetKeep
+#  define deflateSetDictionary  z_deflateSetDictionary
+#  define deflateSetHeader      z_deflateSetHeader
+#  define deflateTune           z_deflateTune
+#  define deflate_copyright     z_deflate_copyright
+#  define get_crc_table         z_get_crc_table
+#  ifndef Z_SOLO
+#    define gz_error              z_gz_error
+#    define gz_intmax             z_gz_intmax
+#    define gz_strwinerror        z_gz_strwinerror
+#    define gzbuffer              z_gzbuffer
+#    define gzclearerr            z_gzclearerr
+#    define gzclose               z_gzclose
+#    define gzclose_r             z_gzclose_r
+#    define gzclose_w             z_gzclose_w
+#    define gzdirect              z_gzdirect
+#    define gzdopen               z_gzdopen
+#    define gzeof                 z_gzeof
+#    define gzerror               z_gzerror
+#    define gzflush               z_gzflush
+#    define gzfread               z_gzfread
+#    define gzfwrite              z_gzfwrite
+#    define gzgetc                z_gzgetc
+#    define gzgetc_               z_gzgetc_
+#    define gzgets                z_gzgets
+#    define gzoffset              z_gzoffset
+#    define gzoffset64            z_gzoffset64
+#    define gzopen                z_gzopen
+#    define gzopen64              z_gzopen64
+#    ifdef _WIN32
+#      define gzopen_w              z_gzopen_w
+#    endif
+#    define gzprintf              z_gzprintf
+#    define gzputc                z_gzputc
+#    define gzputs                z_gzputs
+#    define gzread                z_gzread
+#    define gzrewind              z_gzrewind
+#    define gzseek                z_gzseek
+#    define gzseek64              z_gzseek64
+#    define gzsetparams           z_gzsetparams
+#    define gztell                z_gztell
+#    define gztell64              z_gztell64
+#    define gzungetc              z_gzungetc
+#    define gzvprintf             z_gzvprintf
+#    define gzwrite               z_gzwrite
+#  endif
+#  define inflate               z_inflate
+#  define inflateBack           z_inflateBack
+#  define inflateBackEnd        z_inflateBackEnd
+#  define inflateBackInit       z_inflateBackInit
+#  define inflateBackInit_      z_inflateBackInit_
+#  define inflateCodesUsed      z_inflateCodesUsed
+#  define inflateCopy           z_inflateCopy
+#  define inflateEnd            z_inflateEnd
+#  define inflateGetDictionary  z_inflateGetDictionary
+#  define inflateGetHeader      z_inflateGetHeader
+#  define inflateInit           z_inflateInit
+#  define inflateInit2          z_inflateInit2
+#  define inflateInit2_         z_inflateInit2_
+#  define inflateInit_          z_inflateInit_
+#  define inflateMark           z_inflateMark
+#  define inflatePrime          z_inflatePrime
+#  define inflateReset          z_inflateReset
+#  define inflateReset2         z_inflateReset2
+#  define inflateResetKeep      z_inflateResetKeep
+#  define inflateSetDictionary  z_inflateSetDictionary
+#  define inflateSync           z_inflateSync
+#  define inflateSyncPoint      z_inflateSyncPoint
+#  define inflateUndermine      z_inflateUndermine
+#  define inflateValidate       z_inflateValidate
+#  define inflate_copyright     z_inflate_copyright
+#  define inflate_fast          z_inflate_fast
+#  define inflate_table         z_inflate_table
+#  ifndef Z_SOLO
+#    define uncompress            z_uncompress
+#    define uncompress2           z_uncompress2
+#  endif
+#  define zError                z_zError
+#  ifndef Z_SOLO
+#    define zcalloc               z_zcalloc
+#    define zcfree                z_zcfree
+#  endif
+#  define zlibCompileFlags      z_zlibCompileFlags
+#  define zlibVersion           z_zlibVersion
+
+/* all zlib typedefs in zlib.h and zconf.h */
+#  define Byte                  z_Byte
+#  define Bytef                 z_Bytef
+#  define alloc_func            z_alloc_func
+#  define charf                 z_charf
+#  define free_func             z_free_func
+#  ifndef Z_SOLO
+#    define gzFile                z_gzFile
+#  endif
+#  define gz_header             z_gz_header
+#  define gz_headerp            z_gz_headerp
+#  define in_func               z_in_func
+#  define intf                  z_intf
+#  define out_func              z_out_func
+#  define uInt                  z_uInt
+#  define uIntf                 z_uIntf
+#  define uLong                 z_uLong
+#  define uLongf                z_uLongf
+#  define voidp                 z_voidp
+#  define voidpc                z_voidpc
+#  define voidpf                z_voidpf
+
+/* all zlib structs in zlib.h and zconf.h */
+#  define gz_header_s           z_gz_header_s
+#  define internal_state        z_internal_state
+
+#endif
+
+#if defined(__MSDOS__) && !defined(MSDOS)
+#  define MSDOS
+#endif
+#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2)
+#  define OS2
+#endif
+#if defined(_WINDOWS) && !defined(WINDOWS)
+#  define WINDOWS
+#endif
+#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__)
+#  ifndef WIN32
+#    define WIN32
+#  endif
+#endif
+#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32)
+#  if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__)
+#    ifndef SYS16BIT
+#      define SYS16BIT
+#    endif
+#  endif
+#endif
+
+/*
+ * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
+ * than 64k bytes at a time (needed on systems with 16-bit int).
+ */
+#ifdef SYS16BIT
+#  define MAXSEG_64K
+#endif
+#ifdef MSDOS
+#  define UNALIGNED_OK
+#endif
+
+#ifdef __STDC_VERSION__
+#  ifndef STDC
+#    define STDC
+#  endif
+#  if __STDC_VERSION__ >= 199901L
+#    ifndef STDC99
+#      define STDC99
+#    endif
+#  endif
+#endif
+#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__))
+#  define STDC
+#endif
+
+#if defined(__OS400__) && !defined(STDC)    /* iSeries (formerly AS/400). */
+#  define STDC
+#endif
+
+#ifndef STDC
+#  ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
+#    define const       /* note: need a more gentle solution here */
+#  endif
+#endif
+
+#if defined(ZLIB_CONST) && !defined(z_const)
+#  define z_const const
+#else
+#  define z_const
+#endif
+
+#ifdef Z_SOLO
+#  ifdef _WIN64
+     typedef unsigned long long z_size_t;
+#  else
+     typedef unsigned long z_size_t;
+#  endif
+#else
+#  define z_longlong long long
+#  if defined(NO_SIZE_T)
+     typedef unsigned NO_SIZE_T z_size_t;
+#  elif defined(STDC)
+#    include <stddef.h>
+     typedef size_t z_size_t;
+#  else
+     typedef unsigned long z_size_t;
+#  endif
+#  undef z_longlong
+#endif
+
+/* Maximum value for memLevel in deflateInit2 */
+#ifndef MAX_MEM_LEVEL
+#  ifdef MAXSEG_64K
+#    define MAX_MEM_LEVEL 8
+#  else
+#    define MAX_MEM_LEVEL 9
+#  endif
+#endif
+
+/* Maximum value for windowBits in deflateInit2 and inflateInit2.
+ * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
+ * created by gzip. (Files created by minigzip can still be extracted by
+ * gzip.)
+ */
+#ifndef MAX_WBITS
+#  define MAX_WBITS   15 /* 32K LZ77 window */
+#endif
+
+/* The memory requirements for deflate are (in bytes):
+            (1 << (windowBits+2)) +  (1 << (memLevel+9))
+ that is: 128K for windowBits=15  +  128K for memLevel = 8  (default values)
+ plus a few kilobytes for small objects. For example, if you want to reduce
+ the default memory requirements from 256K to 128K, compile with
+     make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
+ Of course this will generally degrade compression (there's no free lunch).
+
+   The memory requirements for inflate are (in bytes) 1 << windowBits
+ that is, 32K for windowBits=15 (default value) plus about 7 kilobytes
+ for small objects.
+*/
+
+                        /* Type declarations */
+
+#ifndef OF /* function prototypes */
+#  ifdef STDC
+#    define OF(args)  args
+#  else
+#    define OF(args)  ()
+#  endif
+#endif
+
+/* The following definitions for FAR are needed only for MSDOS mixed
+ * model programming (small or medium model with some far allocations).
+ * This was tested only with MSC; for other MSDOS compilers you may have
+ * to define NO_MEMCPY in zutil.h.  If you don't need the mixed model,
+ * just define FAR to be empty.
+ */
+#ifdef SYS16BIT
+#  if defined(M_I86SM) || defined(M_I86MM)
+     /* MSC small or medium model */
+#    define SMALL_MEDIUM
+#    ifdef _MSC_VER
+#      define FAR _far
+#    else
+#      define FAR far
+#    endif
+#  endif
+#  if (defined(__SMALL__) || defined(__MEDIUM__))
+     /* Turbo C small or medium model */
+#    define SMALL_MEDIUM
+#    ifdef __BORLANDC__
+#      define FAR _far
+#    else
+#      define FAR far
+#    endif
+#  endif
+#endif
+
+#if defined(WINDOWS) || defined(WIN32)
+   /* If building or using zlib as a DLL, define ZLIB_DLL.
+    * This is not mandatory, but it offers a little performance increase.
+    */
+#  ifdef ZLIB_DLL
+#    if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))
+#      ifdef ZLIB_INTERNAL
+#        define ZEXTERN extern __declspec(dllexport)
+#      else
+#        define ZEXTERN extern __declspec(dllimport)
+#      endif
+#    endif
+#  endif  /* ZLIB_DLL */
+   /* If building or using zlib with the WINAPI/WINAPIV calling convention,
+    * define ZLIB_WINAPI.
+    * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.
+    */
+#  ifdef ZLIB_WINAPI
+#    ifdef FAR
+#      undef FAR
+#    endif
+#    ifndef WIN32_LEAN_AND_MEAN
+#      define WIN32_LEAN_AND_MEAN
+#    endif
+#    include <windows.h>
+     /* No need for _export, use ZLIB.DEF instead. */
+     /* For complete Windows compatibility, use WINAPI, not __stdcall. */
+#    define ZEXPORT WINAPI
+#    ifdef WIN32
+#      define ZEXPORTVA WINAPIV
+#    else
+#      define ZEXPORTVA FAR CDECL
+#    endif
+#  endif
+#endif
+
+#if defined (__BEOS__)
+#  ifdef ZLIB_DLL
+#    ifdef ZLIB_INTERNAL
+#      define ZEXPORT   __declspec(dllexport)
+#      define ZEXPORTVA __declspec(dllexport)
+#    else
+#      define ZEXPORT   __declspec(dllimport)
+#      define ZEXPORTVA __declspec(dllimport)
+#    endif
+#  endif
+#endif
+
+#ifndef ZEXTERN
+#  define ZEXTERN extern
+#endif
+#ifndef ZEXPORT
+#  define ZEXPORT
+#endif
+#ifndef ZEXPORTVA
+#  define ZEXPORTVA
+#endif
+
+#ifndef FAR
+#  define FAR
+#endif
+
+#if !defined(__MACTYPES__)
+typedef unsigned char  Byte;  /* 8 bits */
+#endif
+typedef unsigned int   uInt;  /* 16 bits or more */
+typedef unsigned long  uLong; /* 32 bits or more */
+
+#ifdef SMALL_MEDIUM
+   /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
+#  define Bytef Byte FAR
+#else
+   typedef Byte  FAR Bytef;
+#endif
+typedef char  FAR charf;
+typedef int   FAR intf;
+typedef uInt  FAR uIntf;
+typedef uLong FAR uLongf;
+
+#ifdef STDC
+   typedef void const *voidpc;
+   typedef void FAR   *voidpf;
+   typedef void       *voidp;
+#else
+   typedef Byte const *voidpc;
+   typedef Byte FAR   *voidpf;
+   typedef Byte       *voidp;
+#endif
+
+#if !defined(Z_U4) && !defined(Z_SOLO) && defined(STDC)
+#  include <limits.h>
+#  if (UINT_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned
+#  elif (ULONG_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned long
+#  elif (USHRT_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned short
+#  endif
+#endif
+
+#ifdef Z_U4
+   typedef Z_U4 z_crc_t;
+#else
+   typedef unsigned long z_crc_t;
+#endif
+
+#ifdef HAVE_UNISTD_H    /* may be set to #if 1 by ./configure */
+#  define Z_HAVE_UNISTD_H
+#endif
+
+#ifdef HAVE_STDARG_H    /* may be set to #if 1 by ./configure */
+#  define Z_HAVE_STDARG_H
+#endif
+
+#ifdef STDC
+#  ifndef Z_SOLO
+#    include <sys/types.h>      /* for off_t */
+#  endif
+#endif
+
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#  ifndef Z_SOLO
+#    include <stdarg.h>         /* for va_list */
+#  endif
+#endif
+
+#ifdef _WIN32
+#  ifndef Z_SOLO
+#    include <stddef.h>         /* for wchar_t */
+#  endif
+#endif
+
+/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
+ * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even
+ * though the former does not conform to the LFS document), but considering
+ * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
+ * equivalently requesting no 64-bit operations
+ */
+#if defined(_LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1
+#  undef _LARGEFILE64_SOURCE
+#endif
+
+#ifndef Z_HAVE_UNISTD_H
+#  ifdef __WATCOMC__
+#    define Z_HAVE_UNISTD_H
+#  endif
+#endif
+#ifndef Z_HAVE_UNISTD_H
+#  if defined(_LARGEFILE64_SOURCE) && !defined(_WIN32)
+#    define Z_HAVE_UNISTD_H
+#  endif
+#endif
+#ifndef Z_SOLO
+#  if defined(Z_HAVE_UNISTD_H)
+#    include <unistd.h>         /* for SEEK_*, off_t, and _LFS64_LARGEFILE */
+#    ifdef VMS
+#      include <unixio.h>       /* for off_t */
+#    endif
+#    ifndef z_off_t
+#      define z_off_t off_t
+#    endif
+#  endif
+#endif
+
+#if defined(_LFS64_LARGEFILE) && _LFS64_LARGEFILE-0
+#  define Z_LFS64
+#endif
+
+#if defined(_LARGEFILE64_SOURCE) && defined(Z_LFS64)
+#  define Z_LARGE64
+#endif
+
+#if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS-0 == 64 && defined(Z_LFS64)
+#  define Z_WANT64
+#endif
+
+#if !defined(SEEK_SET) && !defined(Z_SOLO)
+#  define SEEK_SET        0       /* Seek from beginning of file.  */
+#  define SEEK_CUR        1       /* Seek from current position.  */
+#  define SEEK_END        2       /* Set file pointer to EOF plus "offset" */
+#endif
+
+#ifndef z_off_t
+#  define z_off_t long
+#endif
+
+#if !defined(_WIN32) && defined(Z_LARGE64)
+#  define z_off64_t off64_t
+#else
+#  if defined(_WIN32) && !defined(__GNUC__)
+#    define z_off64_t __int64
+#  else
+#    define z_off64_t z_off_t
+#  endif
+#endif
+
+/* MVS linker does not support external names larger than 8 bytes */
+#if defined(__MVS__)
+  #pragma map(deflateInit_,"DEIN")
+  #pragma map(deflateInit2_,"DEIN2")
+  #pragma map(deflateEnd,"DEEND")
+  #pragma map(deflateBound,"DEBND")
+  #pragma map(inflateInit_,"ININ")
+  #pragma map(inflateInit2_,"ININ2")
+  #pragma map(inflateEnd,"INEND")
+  #pragma map(inflateSync,"INSY")
+  #pragma map(inflateSetDictionary,"INSEDI")
+  #pragma map(compressBound,"CMBND")
+  #pragma map(inflate_table,"INTABL")
+  #pragma map(inflate_fast,"INFA")
+  #pragma map(inflate_copyright,"INCOPY")
+#endif
+
+#endif /* ZCONF_H */
diff --git a/compat/zlib/zconf.h.cmakein b/compat/zlib/zconf.h.cmakein
new file mode 100644
index 0000000..0abe3bc
--- /dev/null
+++ b/compat/zlib/zconf.h.cmakein
@@ -0,0 +1,545 @@
+/* zconf.h -- configuration of the zlib compression library
+ * Copyright (C) 1995-2024 Jean-loup Gailly, Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#ifndef ZCONF_H
+#define ZCONF_H
+#cmakedefine Z_PREFIX
+#cmakedefine Z_HAVE_UNISTD_H
+
+/*
+ * If you *really* need a unique prefix for all types and library functions,
+ * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
+ * Even better than compiling with -DZ_PREFIX would be to use configure to set
+ * this permanently in zconf.h using "./configure --zprefix".
+ */
+#ifdef Z_PREFIX     /* may be set to #if 1 by ./configure */
+#  define Z_PREFIX_SET
+
+/* all linked symbols and init macros */
+#  define _dist_code            z__dist_code
+#  define _length_code          z__length_code
+#  define _tr_align             z__tr_align
+#  define _tr_flush_bits        z__tr_flush_bits
+#  define _tr_flush_block       z__tr_flush_block
+#  define _tr_init              z__tr_init
+#  define _tr_stored_block      z__tr_stored_block
+#  define _tr_tally             z__tr_tally
+#  define adler32               z_adler32
+#  define adler32_combine       z_adler32_combine
+#  define adler32_combine64     z_adler32_combine64
+#  define adler32_z             z_adler32_z
+#  ifndef Z_SOLO
+#    define compress              z_compress
+#    define compress2             z_compress2
+#    define compressBound         z_compressBound
+#  endif
+#  define crc32                 z_crc32
+#  define crc32_combine         z_crc32_combine
+#  define crc32_combine64       z_crc32_combine64
+#  define crc32_combine_gen     z_crc32_combine_gen
+#  define crc32_combine_gen64   z_crc32_combine_gen64
+#  define crc32_combine_op      z_crc32_combine_op
+#  define crc32_z               z_crc32_z
+#  define deflate               z_deflate
+#  define deflateBound          z_deflateBound
+#  define deflateCopy           z_deflateCopy
+#  define deflateEnd            z_deflateEnd
+#  define deflateGetDictionary  z_deflateGetDictionary
+#  define deflateInit           z_deflateInit
+#  define deflateInit2          z_deflateInit2
+#  define deflateInit2_         z_deflateInit2_
+#  define deflateInit_          z_deflateInit_
+#  define deflateParams         z_deflateParams
+#  define deflatePending        z_deflatePending
+#  define deflatePrime          z_deflatePrime
+#  define deflateReset          z_deflateReset
+#  define deflateResetKeep      z_deflateResetKeep
+#  define deflateSetDictionary  z_deflateSetDictionary
+#  define deflateSetHeader      z_deflateSetHeader
+#  define deflateTune           z_deflateTune
+#  define deflate_copyright     z_deflate_copyright
+#  define get_crc_table         z_get_crc_table
+#  ifndef Z_SOLO
+#    define gz_error              z_gz_error
+#    define gz_intmax             z_gz_intmax
+#    define gz_strwinerror        z_gz_strwinerror
+#    define gzbuffer              z_gzbuffer
+#    define gzclearerr            z_gzclearerr
+#    define gzclose               z_gzclose
+#    define gzclose_r             z_gzclose_r
+#    define gzclose_w             z_gzclose_w
+#    define gzdirect              z_gzdirect
+#    define gzdopen               z_gzdopen
+#    define gzeof                 z_gzeof
+#    define gzerror               z_gzerror
+#    define gzflush               z_gzflush
+#    define gzfread               z_gzfread
+#    define gzfwrite              z_gzfwrite
+#    define gzgetc                z_gzgetc
+#    define gzgetc_               z_gzgetc_
+#    define gzgets                z_gzgets
+#    define gzoffset              z_gzoffset
+#    define gzoffset64            z_gzoffset64
+#    define gzopen                z_gzopen
+#    define gzopen64              z_gzopen64
+#    ifdef _WIN32
+#      define gzopen_w              z_gzopen_w
+#    endif
+#    define gzprintf              z_gzprintf
+#    define gzputc                z_gzputc
+#    define gzputs                z_gzputs
+#    define gzread                z_gzread
+#    define gzrewind              z_gzrewind
+#    define gzseek                z_gzseek
+#    define gzseek64              z_gzseek64
+#    define gzsetparams           z_gzsetparams
+#    define gztell                z_gztell
+#    define gztell64              z_gztell64
+#    define gzungetc              z_gzungetc
+#    define gzvprintf             z_gzvprintf
+#    define gzwrite               z_gzwrite
+#  endif
+#  define inflate               z_inflate
+#  define inflateBack           z_inflateBack
+#  define inflateBackEnd        z_inflateBackEnd
+#  define inflateBackInit       z_inflateBackInit
+#  define inflateBackInit_      z_inflateBackInit_
+#  define inflateCodesUsed      z_inflateCodesUsed
+#  define inflateCopy           z_inflateCopy
+#  define inflateEnd            z_inflateEnd
+#  define inflateGetDictionary  z_inflateGetDictionary
+#  define inflateGetHeader      z_inflateGetHeader
+#  define inflateInit           z_inflateInit
+#  define inflateInit2          z_inflateInit2
+#  define inflateInit2_         z_inflateInit2_
+#  define inflateInit_          z_inflateInit_
+#  define inflateMark           z_inflateMark
+#  define inflatePrime          z_inflatePrime
+#  define inflateReset          z_inflateReset
+#  define inflateReset2         z_inflateReset2
+#  define inflateResetKeep      z_inflateResetKeep
+#  define inflateSetDictionary  z_inflateSetDictionary
+#  define inflateSync           z_inflateSync
+#  define inflateSyncPoint      z_inflateSyncPoint
+#  define inflateUndermine      z_inflateUndermine
+#  define inflateValidate       z_inflateValidate
+#  define inflate_copyright     z_inflate_copyright
+#  define inflate_fast          z_inflate_fast
+#  define inflate_table         z_inflate_table
+#  ifndef Z_SOLO
+#    define uncompress            z_uncompress
+#    define uncompress2           z_uncompress2
+#  endif
+#  define zError                z_zError
+#  ifndef Z_SOLO
+#    define zcalloc               z_zcalloc
+#    define zcfree                z_zcfree
+#  endif
+#  define zlibCompileFlags      z_zlibCompileFlags
+#  define zlibVersion           z_zlibVersion
+
+/* all zlib typedefs in zlib.h and zconf.h */
+#  define Byte                  z_Byte
+#  define Bytef                 z_Bytef
+#  define alloc_func            z_alloc_func
+#  define charf                 z_charf
+#  define free_func             z_free_func
+#  ifndef Z_SOLO
+#    define gzFile                z_gzFile
+#  endif
+#  define gz_header             z_gz_header
+#  define gz_headerp            z_gz_headerp
+#  define in_func               z_in_func
+#  define intf                  z_intf
+#  define out_func              z_out_func
+#  define uInt                  z_uInt
+#  define uIntf                 z_uIntf
+#  define uLong                 z_uLong
+#  define uLongf                z_uLongf
+#  define voidp                 z_voidp
+#  define voidpc                z_voidpc
+#  define voidpf                z_voidpf
+
+/* all zlib structs in zlib.h and zconf.h */
+#  define gz_header_s           z_gz_header_s
+#  define internal_state        z_internal_state
+
+#endif
+
+#if defined(__MSDOS__) && !defined(MSDOS)
+#  define MSDOS
+#endif
+#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2)
+#  define OS2
+#endif
+#if defined(_WINDOWS) && !defined(WINDOWS)
+#  define WINDOWS
+#endif
+#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__)
+#  ifndef WIN32
+#    define WIN32
+#  endif
+#endif
+#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32)
+#  if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__)
+#    ifndef SYS16BIT
+#      define SYS16BIT
+#    endif
+#  endif
+#endif
+
+/*
+ * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
+ * than 64k bytes at a time (needed on systems with 16-bit int).
+ */
+#ifdef SYS16BIT
+#  define MAXSEG_64K
+#endif
+#ifdef MSDOS
+#  define UNALIGNED_OK
+#endif
+
+#ifdef __STDC_VERSION__
+#  ifndef STDC
+#    define STDC
+#  endif
+#  if __STDC_VERSION__ >= 199901L
+#    ifndef STDC99
+#      define STDC99
+#    endif
+#  endif
+#endif
+#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__))
+#  define STDC
+#endif
+
+#if defined(__OS400__) && !defined(STDC)    /* iSeries (formerly AS/400). */
+#  define STDC
+#endif
+
+#ifndef STDC
+#  ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
+#    define const       /* note: need a more gentle solution here */
+#  endif
+#endif
+
+#if defined(ZLIB_CONST) && !defined(z_const)
+#  define z_const const
+#else
+#  define z_const
+#endif
+
+#ifdef Z_SOLO
+#  ifdef _WIN64
+     typedef unsigned long long z_size_t;
+#  else
+     typedef unsigned long z_size_t;
+#  endif
+#else
+#  define z_longlong long long
+#  if defined(NO_SIZE_T)
+     typedef unsigned NO_SIZE_T z_size_t;
+#  elif defined(STDC)
+#    include <stddef.h>
+     typedef size_t z_size_t;
+#  else
+     typedef unsigned long z_size_t;
+#  endif
+#  undef z_longlong
+#endif
+
+/* Maximum value for memLevel in deflateInit2 */
+#ifndef MAX_MEM_LEVEL
+#  ifdef MAXSEG_64K
+#    define MAX_MEM_LEVEL 8
+#  else
+#    define MAX_MEM_LEVEL 9
+#  endif
+#endif
+
+/* Maximum value for windowBits in deflateInit2 and inflateInit2.
+ * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
+ * created by gzip. (Files created by minigzip can still be extracted by
+ * gzip.)
+ */
+#ifndef MAX_WBITS
+#  define MAX_WBITS   15 /* 32K LZ77 window */
+#endif
+
+/* The memory requirements for deflate are (in bytes):
+            (1 << (windowBits+2)) +  (1 << (memLevel+9))
+ that is: 128K for windowBits=15  +  128K for memLevel = 8  (default values)
+ plus a few kilobytes for small objects. For example, if you want to reduce
+ the default memory requirements from 256K to 128K, compile with
+     make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
+ Of course this will generally degrade compression (there's no free lunch).
+
+   The memory requirements for inflate are (in bytes) 1 << windowBits
+ that is, 32K for windowBits=15 (default value) plus about 7 kilobytes
+ for small objects.
+*/
+
+                        /* Type declarations */
+
+#ifndef OF /* function prototypes */
+#  ifdef STDC
+#    define OF(args)  args
+#  else
+#    define OF(args)  ()
+#  endif
+#endif
+
+/* The following definitions for FAR are needed only for MSDOS mixed
+ * model programming (small or medium model with some far allocations).
+ * This was tested only with MSC; for other MSDOS compilers you may have
+ * to define NO_MEMCPY in zutil.h.  If you don't need the mixed model,
+ * just define FAR to be empty.
+ */
+#ifdef SYS16BIT
+#  if defined(M_I86SM) || defined(M_I86MM)
+     /* MSC small or medium model */
+#    define SMALL_MEDIUM
+#    ifdef _MSC_VER
+#      define FAR _far
+#    else
+#      define FAR far
+#    endif
+#  endif
+#  if (defined(__SMALL__) || defined(__MEDIUM__))
+     /* Turbo C small or medium model */
+#    define SMALL_MEDIUM
+#    ifdef __BORLANDC__
+#      define FAR _far
+#    else
+#      define FAR far
+#    endif
+#  endif
+#endif
+
+#if defined(WINDOWS) || defined(WIN32)
+   /* If building or using zlib as a DLL, define ZLIB_DLL.
+    * This is not mandatory, but it offers a little performance increase.
+    */
+#  ifdef ZLIB_DLL
+#    if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))
+#      ifdef ZLIB_INTERNAL
+#        define ZEXTERN extern __declspec(dllexport)
+#      else
+#        define ZEXTERN extern __declspec(dllimport)
+#      endif
+#    endif
+#  endif  /* ZLIB_DLL */
+   /* If building or using zlib with the WINAPI/WINAPIV calling convention,
+    * define ZLIB_WINAPI.
+    * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.
+    */
+#  ifdef ZLIB_WINAPI
+#    ifdef FAR
+#      undef FAR
+#    endif
+#    ifndef WIN32_LEAN_AND_MEAN
+#      define WIN32_LEAN_AND_MEAN
+#    endif
+#    include <windows.h>
+     /* No need for _export, use ZLIB.DEF instead. */
+     /* For complete Windows compatibility, use WINAPI, not __stdcall. */
+#    define ZEXPORT WINAPI
+#    ifdef WIN32
+#      define ZEXPORTVA WINAPIV
+#    else
+#      define ZEXPORTVA FAR CDECL
+#    endif
+#  endif
+#endif
+
+#if defined (__BEOS__)
+#  ifdef ZLIB_DLL
+#    ifdef ZLIB_INTERNAL
+#      define ZEXPORT   __declspec(dllexport)
+#      define ZEXPORTVA __declspec(dllexport)
+#    else
+#      define ZEXPORT   __declspec(dllimport)
+#      define ZEXPORTVA __declspec(dllimport)
+#    endif
+#  endif
+#endif
+
+#ifndef ZEXTERN
+#  define ZEXTERN extern
+#endif
+#ifndef ZEXPORT
+#  define ZEXPORT
+#endif
+#ifndef ZEXPORTVA
+#  define ZEXPORTVA
+#endif
+
+#ifndef FAR
+#  define FAR
+#endif
+
+#if !defined(__MACTYPES__)
+typedef unsigned char  Byte;  /* 8 bits */
+#endif
+typedef unsigned int   uInt;  /* 16 bits or more */
+typedef unsigned long  uLong; /* 32 bits or more */
+
+#ifdef SMALL_MEDIUM
+   /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
+#  define Bytef Byte FAR
+#else
+   typedef Byte  FAR Bytef;
+#endif
+typedef char  FAR charf;
+typedef int   FAR intf;
+typedef uInt  FAR uIntf;
+typedef uLong FAR uLongf;
+
+#ifdef STDC
+   typedef void const *voidpc;
+   typedef void FAR   *voidpf;
+   typedef void       *voidp;
+#else
+   typedef Byte const *voidpc;
+   typedef Byte FAR   *voidpf;
+   typedef Byte       *voidp;
+#endif
+
+#if !defined(Z_U4) && !defined(Z_SOLO) && defined(STDC)
+#  include <limits.h>
+#  if (UINT_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned
+#  elif (ULONG_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned long
+#  elif (USHRT_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned short
+#  endif
+#endif
+
+#ifdef Z_U4
+   typedef Z_U4 z_crc_t;
+#else
+   typedef unsigned long z_crc_t;
+#endif
+
+#ifdef HAVE_UNISTD_H    /* may be set to #if 1 by ./configure */
+#  define Z_HAVE_UNISTD_H
+#endif
+
+#ifdef HAVE_STDARG_H    /* may be set to #if 1 by ./configure */
+#  define Z_HAVE_STDARG_H
+#endif
+
+#ifdef STDC
+#  ifndef Z_SOLO
+#    include <sys/types.h>      /* for off_t */
+#  endif
+#endif
+
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#  ifndef Z_SOLO
+#    include <stdarg.h>         /* for va_list */
+#  endif
+#endif
+
+#ifdef _WIN32
+#  ifndef Z_SOLO
+#    include <stddef.h>         /* for wchar_t */
+#  endif
+#endif
+
+/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
+ * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even
+ * though the former does not conform to the LFS document), but considering
+ * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
+ * equivalently requesting no 64-bit operations
+ */
+#if defined(_LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1
+#  undef _LARGEFILE64_SOURCE
+#endif
+
+#ifndef Z_HAVE_UNISTD_H
+#  ifdef __WATCOMC__
+#    define Z_HAVE_UNISTD_H
+#  endif
+#endif
+#ifndef Z_HAVE_UNISTD_H
+#  if defined(_LARGEFILE64_SOURCE) && !defined(_WIN32)
+#    define Z_HAVE_UNISTD_H
+#  endif
+#endif
+#ifndef Z_SOLO
+#  if defined(Z_HAVE_UNISTD_H)
+#    include <unistd.h>         /* for SEEK_*, off_t, and _LFS64_LARGEFILE */
+#    ifdef VMS
+#      include <unixio.h>       /* for off_t */
+#    endif
+#    ifndef z_off_t
+#      define z_off_t off_t
+#    endif
+#  endif
+#endif
+
+#if defined(_LFS64_LARGEFILE) && _LFS64_LARGEFILE-0
+#  define Z_LFS64
+#endif
+
+#if defined(_LARGEFILE64_SOURCE) && defined(Z_LFS64)
+#  define Z_LARGE64
+#endif
+
+#if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS-0 == 64 && defined(Z_LFS64)
+#  define Z_WANT64
+#endif
+
+#if !defined(SEEK_SET) && !defined(Z_SOLO)
+#  define SEEK_SET        0       /* Seek from beginning of file.  */
+#  define SEEK_CUR        1       /* Seek from current position.  */
+#  define SEEK_END        2       /* Set file pointer to EOF plus "offset" */
+#endif
+
+#ifndef z_off_t
+#  define z_off_t long
+#endif
+
+#if !defined(_WIN32) && defined(Z_LARGE64)
+#  define z_off64_t off64_t
+#else
+#  if defined(_WIN32) && !defined(__GNUC__)
+#    define z_off64_t __int64
+#  else
+#    define z_off64_t z_off_t
+#  endif
+#endif
+
+/* MVS linker does not support external names larger than 8 bytes */
+#if defined(__MVS__)
+  #pragma map(deflateInit_,"DEIN")
+  #pragma map(deflateInit2_,"DEIN2")
+  #pragma map(deflateEnd,"DEEND")
+  #pragma map(deflateBound,"DEBND")
+  #pragma map(inflateInit_,"ININ")
+  #pragma map(inflateInit2_,"ININ2")
+  #pragma map(inflateEnd,"INEND")
+  #pragma map(inflateSync,"INSY")
+  #pragma map(inflateSetDictionary,"INSEDI")
+  #pragma map(compressBound,"CMBND")
+  #pragma map(inflate_table,"INTABL")
+  #pragma map(inflate_fast,"INFA")
+  #pragma map(inflate_copyright,"INCOPY")
+#endif
+
+#endif /* ZCONF_H */
diff --git a/compat/zlib/zconf.h.in b/compat/zlib/zconf.h.in
new file mode 100644
index 0000000..62adc8d
--- /dev/null
+++ b/compat/zlib/zconf.h.in
@@ -0,0 +1,543 @@
+/* zconf.h -- configuration of the zlib compression library
+ * Copyright (C) 1995-2024 Jean-loup Gailly, Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#ifndef ZCONF_H
+#define ZCONF_H
+
+/*
+ * If you *really* need a unique prefix for all types and library functions,
+ * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
+ * Even better than compiling with -DZ_PREFIX would be to use configure to set
+ * this permanently in zconf.h using "./configure --zprefix".
+ */
+#ifdef Z_PREFIX     /* may be set to #if 1 by ./configure */
+#  define Z_PREFIX_SET
+
+/* all linked symbols and init macros */
+#  define _dist_code            z__dist_code
+#  define _length_code          z__length_code
+#  define _tr_align             z__tr_align
+#  define _tr_flush_bits        z__tr_flush_bits
+#  define _tr_flush_block       z__tr_flush_block
+#  define _tr_init              z__tr_init
+#  define _tr_stored_block      z__tr_stored_block
+#  define _tr_tally             z__tr_tally
+#  define adler32               z_adler32
+#  define adler32_combine       z_adler32_combine
+#  define adler32_combine64     z_adler32_combine64
+#  define adler32_z             z_adler32_z
+#  ifndef Z_SOLO
+#    define compress              z_compress
+#    define compress2             z_compress2
+#    define compressBound         z_compressBound
+#  endif
+#  define crc32                 z_crc32
+#  define crc32_combine         z_crc32_combine
+#  define crc32_combine64       z_crc32_combine64
+#  define crc32_combine_gen     z_crc32_combine_gen
+#  define crc32_combine_gen64   z_crc32_combine_gen64
+#  define crc32_combine_op      z_crc32_combine_op
+#  define crc32_z               z_crc32_z
+#  define deflate               z_deflate
+#  define deflateBound          z_deflateBound
+#  define deflateCopy           z_deflateCopy
+#  define deflateEnd            z_deflateEnd
+#  define deflateGetDictionary  z_deflateGetDictionary
+#  define deflateInit           z_deflateInit
+#  define deflateInit2          z_deflateInit2
+#  define deflateInit2_         z_deflateInit2_
+#  define deflateInit_          z_deflateInit_
+#  define deflateParams         z_deflateParams
+#  define deflatePending        z_deflatePending
+#  define deflatePrime          z_deflatePrime
+#  define deflateReset          z_deflateReset
+#  define deflateResetKeep      z_deflateResetKeep
+#  define deflateSetDictionary  z_deflateSetDictionary
+#  define deflateSetHeader      z_deflateSetHeader
+#  define deflateTune           z_deflateTune
+#  define deflate_copyright     z_deflate_copyright
+#  define get_crc_table         z_get_crc_table
+#  ifndef Z_SOLO
+#    define gz_error              z_gz_error
+#    define gz_intmax             z_gz_intmax
+#    define gz_strwinerror        z_gz_strwinerror
+#    define gzbuffer              z_gzbuffer
+#    define gzclearerr            z_gzclearerr
+#    define gzclose               z_gzclose
+#    define gzclose_r             z_gzclose_r
+#    define gzclose_w             z_gzclose_w
+#    define gzdirect              z_gzdirect
+#    define gzdopen               z_gzdopen
+#    define gzeof                 z_gzeof
+#    define gzerror               z_gzerror
+#    define gzflush               z_gzflush
+#    define gzfread               z_gzfread
+#    define gzfwrite              z_gzfwrite
+#    define gzgetc                z_gzgetc
+#    define gzgetc_               z_gzgetc_
+#    define gzgets                z_gzgets
+#    define gzoffset              z_gzoffset
+#    define gzoffset64            z_gzoffset64
+#    define gzopen                z_gzopen
+#    define gzopen64              z_gzopen64
+#    ifdef _WIN32
+#      define gzopen_w              z_gzopen_w
+#    endif
+#    define gzprintf              z_gzprintf
+#    define gzputc                z_gzputc
+#    define gzputs                z_gzputs
+#    define gzread                z_gzread
+#    define gzrewind              z_gzrewind
+#    define gzseek                z_gzseek
+#    define gzseek64              z_gzseek64
+#    define gzsetparams           z_gzsetparams
+#    define gztell                z_gztell
+#    define gztell64              z_gztell64
+#    define gzungetc              z_gzungetc
+#    define gzvprintf             z_gzvprintf
+#    define gzwrite               z_gzwrite
+#  endif
+#  define inflate               z_inflate
+#  define inflateBack           z_inflateBack
+#  define inflateBackEnd        z_inflateBackEnd
+#  define inflateBackInit       z_inflateBackInit
+#  define inflateBackInit_      z_inflateBackInit_
+#  define inflateCodesUsed      z_inflateCodesUsed
+#  define inflateCopy           z_inflateCopy
+#  define inflateEnd            z_inflateEnd
+#  define inflateGetDictionary  z_inflateGetDictionary
+#  define inflateGetHeader      z_inflateGetHeader
+#  define inflateInit           z_inflateInit
+#  define inflateInit2          z_inflateInit2
+#  define inflateInit2_         z_inflateInit2_
+#  define inflateInit_          z_inflateInit_
+#  define inflateMark           z_inflateMark
+#  define inflatePrime          z_inflatePrime
+#  define inflateReset          z_inflateReset
+#  define inflateReset2         z_inflateReset2
+#  define inflateResetKeep      z_inflateResetKeep
+#  define inflateSetDictionary  z_inflateSetDictionary
+#  define inflateSync           z_inflateSync
+#  define inflateSyncPoint      z_inflateSyncPoint
+#  define inflateUndermine      z_inflateUndermine
+#  define inflateValidate       z_inflateValidate
+#  define inflate_copyright     z_inflate_copyright
+#  define inflate_fast          z_inflate_fast
+#  define inflate_table         z_inflate_table
+#  ifndef Z_SOLO
+#    define uncompress            z_uncompress
+#    define uncompress2           z_uncompress2
+#  endif
+#  define zError                z_zError
+#  ifndef Z_SOLO
+#    define zcalloc               z_zcalloc
+#    define zcfree                z_zcfree
+#  endif
+#  define zlibCompileFlags      z_zlibCompileFlags
+#  define zlibVersion           z_zlibVersion
+
+/* all zlib typedefs in zlib.h and zconf.h */
+#  define Byte                  z_Byte
+#  define Bytef                 z_Bytef
+#  define alloc_func            z_alloc_func
+#  define charf                 z_charf
+#  define free_func             z_free_func
+#  ifndef Z_SOLO
+#    define gzFile                z_gzFile
+#  endif
+#  define gz_header             z_gz_header
+#  define gz_headerp            z_gz_headerp
+#  define in_func               z_in_func
+#  define intf                  z_intf
+#  define out_func              z_out_func
+#  define uInt                  z_uInt
+#  define uIntf                 z_uIntf
+#  define uLong                 z_uLong
+#  define uLongf                z_uLongf
+#  define voidp                 z_voidp
+#  define voidpc                z_voidpc
+#  define voidpf                z_voidpf
+
+/* all zlib structs in zlib.h and zconf.h */
+#  define gz_header_s           z_gz_header_s
+#  define internal_state        z_internal_state
+
+#endif
+
+#if defined(__MSDOS__) && !defined(MSDOS)
+#  define MSDOS
+#endif
+#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2)
+#  define OS2
+#endif
+#if defined(_WINDOWS) && !defined(WINDOWS)
+#  define WINDOWS
+#endif
+#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__)
+#  ifndef WIN32
+#    define WIN32
+#  endif
+#endif
+#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32)
+#  if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__)
+#    ifndef SYS16BIT
+#      define SYS16BIT
+#    endif
+#  endif
+#endif
+
+/*
+ * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
+ * than 64k bytes at a time (needed on systems with 16-bit int).
+ */
+#ifdef SYS16BIT
+#  define MAXSEG_64K
+#endif
+#ifdef MSDOS
+#  define UNALIGNED_OK
+#endif
+
+#ifdef __STDC_VERSION__
+#  ifndef STDC
+#    define STDC
+#  endif
+#  if __STDC_VERSION__ >= 199901L
+#    ifndef STDC99
+#      define STDC99
+#    endif
+#  endif
+#endif
+#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__))
+#  define STDC
+#endif
+
+#if defined(__OS400__) && !defined(STDC)    /* iSeries (formerly AS/400). */
+#  define STDC
+#endif
+
+#ifndef STDC
+#  ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
+#    define const       /* note: need a more gentle solution here */
+#  endif
+#endif
+
+#if defined(ZLIB_CONST) && !defined(z_const)
+#  define z_const const
+#else
+#  define z_const
+#endif
+
+#ifdef Z_SOLO
+#  ifdef _WIN64
+     typedef unsigned long long z_size_t;
+#  else
+     typedef unsigned long z_size_t;
+#  endif
+#else
+#  define z_longlong long long
+#  if defined(NO_SIZE_T)
+     typedef unsigned NO_SIZE_T z_size_t;
+#  elif defined(STDC)
+#    include <stddef.h>
+     typedef size_t z_size_t;
+#  else
+     typedef unsigned long z_size_t;
+#  endif
+#  undef z_longlong
+#endif
+
+/* Maximum value for memLevel in deflateInit2 */
+#ifndef MAX_MEM_LEVEL
+#  ifdef MAXSEG_64K
+#    define MAX_MEM_LEVEL 8
+#  else
+#    define MAX_MEM_LEVEL 9
+#  endif
+#endif
+
+/* Maximum value for windowBits in deflateInit2 and inflateInit2.
+ * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
+ * created by gzip. (Files created by minigzip can still be extracted by
+ * gzip.)
+ */
+#ifndef MAX_WBITS
+#  define MAX_WBITS   15 /* 32K LZ77 window */
+#endif
+
+/* The memory requirements for deflate are (in bytes):
+            (1 << (windowBits+2)) +  (1 << (memLevel+9))
+ that is: 128K for windowBits=15  +  128K for memLevel = 8  (default values)
+ plus a few kilobytes for small objects. For example, if you want to reduce
+ the default memory requirements from 256K to 128K, compile with
+     make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
+ Of course this will generally degrade compression (there's no free lunch).
+
+   The memory requirements for inflate are (in bytes) 1 << windowBits
+ that is, 32K for windowBits=15 (default value) plus about 7 kilobytes
+ for small objects.
+*/
+
+                        /* Type declarations */
+
+#ifndef OF /* function prototypes */
+#  ifdef STDC
+#    define OF(args)  args
+#  else
+#    define OF(args)  ()
+#  endif
+#endif
+
+/* The following definitions for FAR are needed only for MSDOS mixed
+ * model programming (small or medium model with some far allocations).
+ * This was tested only with MSC; for other MSDOS compilers you may have
+ * to define NO_MEMCPY in zutil.h.  If you don't need the mixed model,
+ * just define FAR to be empty.
+ */
+#ifdef SYS16BIT
+#  if defined(M_I86SM) || defined(M_I86MM)
+     /* MSC small or medium model */
+#    define SMALL_MEDIUM
+#    ifdef _MSC_VER
+#      define FAR _far
+#    else
+#      define FAR far
+#    endif
+#  endif
+#  if (defined(__SMALL__) || defined(__MEDIUM__))
+     /* Turbo C small or medium model */
+#    define SMALL_MEDIUM
+#    ifdef __BORLANDC__
+#      define FAR _far
+#    else
+#      define FAR far
+#    endif
+#  endif
+#endif
+
+#if defined(WINDOWS) || defined(WIN32)
+   /* If building or using zlib as a DLL, define ZLIB_DLL.
+    * This is not mandatory, but it offers a little performance increase.
+    */
+#  ifdef ZLIB_DLL
+#    if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))
+#      ifdef ZLIB_INTERNAL
+#        define ZEXTERN extern __declspec(dllexport)
+#      else
+#        define ZEXTERN extern __declspec(dllimport)
+#      endif
+#    endif
+#  endif  /* ZLIB_DLL */
+   /* If building or using zlib with the WINAPI/WINAPIV calling convention,
+    * define ZLIB_WINAPI.
+    * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.
+    */
+#  ifdef ZLIB_WINAPI
+#    ifdef FAR
+#      undef FAR
+#    endif
+#    ifndef WIN32_LEAN_AND_MEAN
+#      define WIN32_LEAN_AND_MEAN
+#    endif
+#    include <windows.h>
+     /* No need for _export, use ZLIB.DEF instead. */
+     /* For complete Windows compatibility, use WINAPI, not __stdcall. */
+#    define ZEXPORT WINAPI
+#    ifdef WIN32
+#      define ZEXPORTVA WINAPIV
+#    else
+#      define ZEXPORTVA FAR CDECL
+#    endif
+#  endif
+#endif
+
+#if defined (__BEOS__)
+#  ifdef ZLIB_DLL
+#    ifdef ZLIB_INTERNAL
+#      define ZEXPORT   __declspec(dllexport)
+#      define ZEXPORTVA __declspec(dllexport)
+#    else
+#      define ZEXPORT   __declspec(dllimport)
+#      define ZEXPORTVA __declspec(dllimport)
+#    endif
+#  endif
+#endif
+
+#ifndef ZEXTERN
+#  define ZEXTERN extern
+#endif
+#ifndef ZEXPORT
+#  define ZEXPORT
+#endif
+#ifndef ZEXPORTVA
+#  define ZEXPORTVA
+#endif
+
+#ifndef FAR
+#  define FAR
+#endif
+
+#if !defined(__MACTYPES__)
+typedef unsigned char  Byte;  /* 8 bits */
+#endif
+typedef unsigned int   uInt;  /* 16 bits or more */
+typedef unsigned long  uLong; /* 32 bits or more */
+
+#ifdef SMALL_MEDIUM
+   /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
+#  define Bytef Byte FAR
+#else
+   typedef Byte  FAR Bytef;
+#endif
+typedef char  FAR charf;
+typedef int   FAR intf;
+typedef uInt  FAR uIntf;
+typedef uLong FAR uLongf;
+
+#ifdef STDC
+   typedef void const *voidpc;
+   typedef void FAR   *voidpf;
+   typedef void       *voidp;
+#else
+   typedef Byte const *voidpc;
+   typedef Byte FAR   *voidpf;
+   typedef Byte       *voidp;
+#endif
+
+#if !defined(Z_U4) && !defined(Z_SOLO) && defined(STDC)
+#  include <limits.h>
+#  if (UINT_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned
+#  elif (ULONG_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned long
+#  elif (USHRT_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned short
+#  endif
+#endif
+
+#ifdef Z_U4
+   typedef Z_U4 z_crc_t;
+#else
+   typedef unsigned long z_crc_t;
+#endif
+
+#ifdef HAVE_UNISTD_H    /* may be set to #if 1 by ./configure */
+#  define Z_HAVE_UNISTD_H
+#endif
+
+#ifdef HAVE_STDARG_H    /* may be set to #if 1 by ./configure */
+#  define Z_HAVE_STDARG_H
+#endif
+
+#ifdef STDC
+#  ifndef Z_SOLO
+#    include <sys/types.h>      /* for off_t */
+#  endif
+#endif
+
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#  ifndef Z_SOLO
+#    include <stdarg.h>         /* for va_list */
+#  endif
+#endif
+
+#ifdef _WIN32
+#  ifndef Z_SOLO
+#    include <stddef.h>         /* for wchar_t */
+#  endif
+#endif
+
+/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
+ * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even
+ * though the former does not conform to the LFS document), but considering
+ * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
+ * equivalently requesting no 64-bit operations
+ */
+#if defined(_LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1
+#  undef _LARGEFILE64_SOURCE
+#endif
+
+#ifndef Z_HAVE_UNISTD_H
+#  ifdef __WATCOMC__
+#    define Z_HAVE_UNISTD_H
+#  endif
+#endif
+#ifndef Z_HAVE_UNISTD_H
+#  if defined(_LARGEFILE64_SOURCE) && !defined(_WIN32)
+#    define Z_HAVE_UNISTD_H
+#  endif
+#endif
+#ifndef Z_SOLO
+#  if defined(Z_HAVE_UNISTD_H)
+#    include <unistd.h>         /* for SEEK_*, off_t, and _LFS64_LARGEFILE */
+#    ifdef VMS
+#      include <unixio.h>       /* for off_t */
+#    endif
+#    ifndef z_off_t
+#      define z_off_t off_t
+#    endif
+#  endif
+#endif
+
+#if defined(_LFS64_LARGEFILE) && _LFS64_LARGEFILE-0
+#  define Z_LFS64
+#endif
+
+#if defined(_LARGEFILE64_SOURCE) && defined(Z_LFS64)
+#  define Z_LARGE64
+#endif
+
+#if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS-0 == 64 && defined(Z_LFS64)
+#  define Z_WANT64
+#endif
+
+#if !defined(SEEK_SET) && !defined(Z_SOLO)
+#  define SEEK_SET        0       /* Seek from beginning of file.  */
+#  define SEEK_CUR        1       /* Seek from current position.  */
+#  define SEEK_END        2       /* Set file pointer to EOF plus "offset" */
+#endif
+
+#ifndef z_off_t
+#  define z_off_t long
+#endif
+
+#if !defined(_WIN32) && defined(Z_LARGE64)
+#  define z_off64_t off64_t
+#else
+#  if defined(_WIN32) && !defined(__GNUC__)
+#    define z_off64_t __int64
+#  else
+#    define z_off64_t z_off_t
+#  endif
+#endif
+
+/* MVS linker does not support external names larger than 8 bytes */
+#if defined(__MVS__)
+  #pragma map(deflateInit_,"DEIN")
+  #pragma map(deflateInit2_,"DEIN2")
+  #pragma map(deflateEnd,"DEEND")
+  #pragma map(deflateBound,"DEBND")
+  #pragma map(inflateInit_,"ININ")
+  #pragma map(inflateInit2_,"ININ2")
+  #pragma map(inflateEnd,"INEND")
+  #pragma map(inflateSync,"INSY")
+  #pragma map(inflateSetDictionary,"INSEDI")
+  #pragma map(compressBound,"CMBND")
+  #pragma map(inflate_table,"INTABL")
+  #pragma map(inflate_fast,"INFA")
+  #pragma map(inflate_copyright,"INCOPY")
+#endif
+
+#endif /* ZCONF_H */
diff --git a/compat/zlib/zlib.3 b/compat/zlib/zlib.3
new file mode 100644
index 0000000..c716020
--- /dev/null
+++ b/compat/zlib/zlib.3
@@ -0,0 +1,149 @@
+.TH ZLIB 3 "22 Jan 2024"
+.SH NAME
+zlib \- compression/decompression library
+.SH SYNOPSIS
+[see
+.I zlib.h
+for full description]
+.SH DESCRIPTION
+The
+.I zlib
+library is a general purpose data compression library.
+The code is thread safe, assuming that the standard library functions
+used are thread safe, such as memory allocation routines.
+It provides in-memory compression and decompression functions,
+including integrity checks of the uncompressed data.
+This version of the library supports only one compression method (deflation)
+but other algorithms may be added later
+with the same stream interface.
+.LP
+Compression can be done in a single step if the buffers are large enough
+or can be done by repeated calls of the compression function.
+In the latter case,
+the application must provide more input and/or consume the output
+(providing more output space) before each call.
+.LP
+The library also supports reading and writing files in
+.IR gzip (1)
+(.gz) format
+with an interface similar to that of stdio.
+.LP
+The library does not install any signal handler.
+The decoder checks the consistency of the compressed data,
+so the library should never crash even in the case of corrupted input.
+.LP
+All functions of the compression library are documented in the file
+.IR zlib.h .
+The distribution source includes examples of use of the library
+in the files
+.I test/example.c
+and
+.IR test/minigzip.c,
+as well as other examples in the
+.IR examples/
+directory.
+.LP
+Changes to this version are documented in the file
+.I ChangeLog
+that accompanies the source.
+.LP
+.I zlib
+is built in to many languages and operating systems, including but not limited to
+Java, Python, .NET, PHP, Perl, Ruby, Swift, and Go.
+.LP
+An experimental package to read and write files in the .zip format,
+written on top of
+.I zlib
+by Gilles Vollant (info@winimage.com),
+is available at:
+.IP
+http://www.winimage.com/zLibDll/minizip.html
+and also in the
+.I contrib/minizip
+directory of the main
+.I zlib
+source distribution.
+.SH "SEE ALSO"
+The
+.I zlib
+web site can be found at:
+.IP
+http://zlib.net/
+.LP
+The data format used by the
+.I zlib
+library is described by RFC
+(Request for Comments) 1950 to 1952 in the files:
+.IP
+http://tools.ietf.org/html/rfc1950 (for the zlib header and trailer format)
+.br
+http://tools.ietf.org/html/rfc1951 (for the deflate compressed data format)
+.br
+http://tools.ietf.org/html/rfc1952 (for the gzip header and trailer format)
+.LP
+Mark Nelson wrote an article about
+.I zlib
+for the Jan. 1997 issue of  Dr. Dobb's Journal;
+a copy of the article is available at:
+.IP
+http://marknelson.us/1997/01/01/zlib-engine/
+.SH "REPORTING PROBLEMS"
+Before reporting a problem,
+please check the
+.I zlib
+web site to verify that you have the latest version of
+.IR zlib ;
+otherwise,
+obtain the latest version and see if the problem still exists.
+Please read the
+.I zlib
+FAQ at:
+.IP
+http://zlib.net/zlib_faq.html
+.LP
+before asking for help.
+Send questions and/or comments to zlib@gzip.org,
+or (for the Windows DLL version) to Gilles Vollant (info@winimage.com).
+.SH AUTHORS AND LICENSE
+Version 1.3.1
+.LP
+Copyright (C) 1995-2024 Jean-loup Gailly and Mark Adler
+.LP
+This software is provided 'as-is', without any express or implied
+warranty.  In no event will the authors be held liable for any damages
+arising from the use of this software.
+.LP
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+.LP
+.nr step 1 1
+.IP \n[step]. 3
+The origin of this software must not be misrepresented; you must not
+claim that you wrote the original software. If you use this software
+in a product, an acknowledgment in the product documentation would be
+appreciated but is not required.
+.IP \n+[step].
+Altered source versions must be plainly marked as such, and must not be
+misrepresented as being the original software.
+.IP \n+[step].
+This notice may not be removed or altered from any source distribution.
+.LP
+Jean-loup Gailly        Mark Adler
+.br
+jloup@gzip.org          madler@alumni.caltech.edu
+.LP
+The deflate format used by
+.I zlib
+was defined by Phil Katz.
+The deflate and
+.I zlib
+specifications were written by L. Peter Deutsch.
+Thanks to all the people who reported problems and suggested various
+improvements in
+.IR zlib ;
+who are too numerous to cite here.
+.LP
+UNIX manual page by R. P. C. Rodgers,
+U.S. National Library of Medicine (rodgers@nlm.nih.gov).
+.\" end of man page
diff --git a/compat/zlib/zlib.3.pdf b/compat/zlib/zlib.3.pdf
new file mode 100644
index 0000000..b224532
--- /dev/null
+++ b/compat/zlib/zlib.3.pdf
diff --git a/compat/zlib/zlib.h b/compat/zlib/zlib.h
new file mode 100644
index 0000000..8d4b932
--- /dev/null
+++ b/compat/zlib/zlib.h
@@ -0,0 +1,1938 @@
+/* zlib.h -- interface of the 'zlib' general purpose compression library
+  version 1.3.1, January 22nd, 2024
+
+  Copyright (C) 1995-2024 Jean-loup Gailly and Mark Adler
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Jean-loup Gailly        Mark Adler
+  jloup@gzip.org          madler@alumni.caltech.edu
+
+
+  The data format used by the zlib library is described by RFCs (Request for
+  Comments) 1950 to 1952 in the files http://tools.ietf.org/html/rfc1950
+  (zlib format), rfc1951 (deflate format) and rfc1952 (gzip format).
+*/
+
+#ifndef ZLIB_H
+#define ZLIB_H
+
+#include "zconf.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define ZLIB_VERSION "1.3.1"
+#define ZLIB_VERNUM 0x1310
+#define ZLIB_VER_MAJOR 1
+#define ZLIB_VER_MINOR 3
+#define ZLIB_VER_REVISION 1
+#define ZLIB_VER_SUBREVISION 0
+
+/*
+    The 'zlib' compression library provides in-memory compression and
+  decompression functions, including integrity checks of the uncompressed data.
+  This version of the library supports only one compression method (deflation)
+  but other algorithms will be added later and will have the same stream
+  interface.
+
+    Compression can be done in a single step if the buffers are large enough,
+  or can be done by repeated calls of the compression function.  In the latter
+  case, the application must provide more input and/or consume the output
+  (providing more output space) before each call.
+
+    The compressed data format used by default by the in-memory functions is
+  the zlib format, which is a zlib wrapper documented in RFC 1950, wrapped
+  around a deflate stream, which is itself documented in RFC 1951.
+
+    The library also supports reading and writing files in gzip (.gz) format
+  with an interface similar to that of stdio using the functions that start
+  with "gz".  The gzip format is different from the zlib format.  gzip is a
+  gzip wrapper, documented in RFC 1952, wrapped around a deflate stream.
+
+    This library can optionally read and write gzip and raw deflate streams in
+  memory as well.
+
+    The zlib format was designed to be compact and fast for use in memory
+  and on communications channels.  The gzip format was designed for single-
+  file compression on file systems, has a larger header than zlib to maintain
+  directory information, and uses a different, slower check method than zlib.
+
+    The library does not install any signal handler.  The decoder checks
+  the consistency of the compressed data, so the library should never crash
+  even in the case of corrupted input.
+*/
+
+typedef voidpf (*alloc_func)(voidpf opaque, uInt items, uInt size);
+typedef void   (*free_func)(voidpf opaque, voidpf address);
+
+struct internal_state;
+
+typedef struct z_stream_s {
+    z_const Bytef *next_in;     /* next input byte */
+    uInt     avail_in;  /* number of bytes available at next_in */
+    uLong    total_in;  /* total number of input bytes read so far */
+
+    Bytef    *next_out; /* next output byte will go here */
+    uInt     avail_out; /* remaining free space at next_out */
+    uLong    total_out; /* total number of bytes output so far */
+
+    z_const char *msg;  /* last error message, NULL if no error */
+    struct internal_state FAR *state; /* not visible by applications */
+
+    alloc_func zalloc;  /* used to allocate the internal state */
+    free_func  zfree;   /* used to free the internal state */
+    voidpf     opaque;  /* private data object passed to zalloc and zfree */
+
+    int     data_type;  /* best guess about the data type: binary or text
+                           for deflate, or the decoding state for inflate */
+    uLong   adler;      /* Adler-32 or CRC-32 value of the uncompressed data */
+    uLong   reserved;   /* reserved for future use */
+} z_stream;
+
+typedef z_stream FAR *z_streamp;
+
+/*
+     gzip header information passed to and from zlib routines.  See RFC 1952
+  for more details on the meanings of these fields.
+*/
+typedef struct gz_header_s {
+    int     text;       /* true if compressed data believed to be text */
+    uLong   time;       /* modification time */
+    int     xflags;     /* extra flags (not used when writing a gzip file) */
+    int     os;         /* operating system */
+    Bytef   *extra;     /* pointer to extra field or Z_NULL if none */
+    uInt    extra_len;  /* extra field length (valid if extra != Z_NULL) */
+    uInt    extra_max;  /* space at extra (only when reading header) */
+    Bytef   *name;      /* pointer to zero-terminated file name or Z_NULL */
+    uInt    name_max;   /* space at name (only when reading header) */
+    Bytef   *comment;   /* pointer to zero-terminated comment or Z_NULL */
+    uInt    comm_max;   /* space at comment (only when reading header) */
+    int     hcrc;       /* true if there was or will be a header crc */
+    int     done;       /* true when done reading gzip header (not used
+                           when writing a gzip file) */
+} gz_header;
+
+typedef gz_header FAR *gz_headerp;
+
+/*
+     The application must update next_in and avail_in when avail_in has dropped
+   to zero.  It must update next_out and avail_out when avail_out has dropped
+   to zero.  The application must initialize zalloc, zfree and opaque before
+   calling the init function.  All other fields are set by the compression
+   library and must not be updated by the application.
+
+     The opaque value provided by the application will be passed as the first
+   parameter for calls of zalloc and zfree.  This can be useful for custom
+   memory management.  The compression library attaches no meaning to the
+   opaque value.
+
+     zalloc must return Z_NULL if there is not enough memory for the object.
+   If zlib is used in a multi-threaded application, zalloc and zfree must be
+   thread safe.  In that case, zlib is thread-safe.  When zalloc and zfree are
+   Z_NULL on entry to the initialization function, they are set to internal
+   routines that use the standard library functions malloc() and free().
+
+     On 16-bit systems, the functions zalloc and zfree must be able to allocate
+   exactly 65536 bytes, but will not be required to allocate more than this if
+   the symbol MAXSEG_64K is defined (see zconf.h).  WARNING: On MSDOS, pointers
+   returned by zalloc for objects of exactly 65536 bytes *must* have their
+   offset normalized to zero.  The default allocation function provided by this
+   library ensures this (see zutil.c).  To reduce memory requirements and avoid
+   any allocation of 64K objects, at the expense of compression ratio, compile
+   the library with -DMAX_WBITS=14 (see zconf.h).
+
+     The fields total_in and total_out can be used for statistics or progress
+   reports.  After compression, total_in holds the total size of the
+   uncompressed data and may be saved for use by the decompressor (particularly
+   if the decompressor wants to decompress everything in a single step).
+*/
+
+                        /* constants */
+
+#define Z_NO_FLUSH      0
+#define Z_PARTIAL_FLUSH 1
+#define Z_SYNC_FLUSH    2
+#define Z_FULL_FLUSH    3
+#define Z_FINISH        4
+#define Z_BLOCK         5
+#define Z_TREES         6
+/* Allowed flush values; see deflate() and inflate() below for details */
+
+#define Z_OK            0
+#define Z_STREAM_END    1
+#define Z_NEED_DICT     2
+#define Z_ERRNO        (-1)
+#define Z_STREAM_ERROR (-2)
+#define Z_DATA_ERROR   (-3)
+#define Z_MEM_ERROR    (-4)
+#define Z_BUF_ERROR    (-5)
+#define Z_VERSION_ERROR (-6)
+/* Return codes for the compression/decompression functions. Negative values
+ * are errors, positive values are used for special but normal events.
+ */
+
+#define Z_NO_COMPRESSION         0
+#define Z_BEST_SPEED             1
+#define Z_BEST_COMPRESSION       9
+#define Z_DEFAULT_COMPRESSION  (-1)
+/* compression levels */
+
+#define Z_FILTERED            1
+#define Z_HUFFMAN_ONLY        2
+#define Z_RLE                 3
+#define Z_FIXED               4
+#define Z_DEFAULT_STRATEGY    0
+/* compression strategy; see deflateInit2() below for details */
+
+#define Z_BINARY   0
+#define Z_TEXT     1
+#define Z_ASCII    Z_TEXT   /* for compatibility with 1.2.2 and earlier */
+#define Z_UNKNOWN  2
+/* Possible values of the data_type field for deflate() */
+
+#define Z_DEFLATED   8
+/* The deflate compression method (the only one supported in this version) */
+
+#define Z_NULL  0  /* for initializing zalloc, zfree, opaque */
+
+#define zlib_version zlibVersion()
+/* for compatibility with versions < 1.0.2 */
+
+
+                        /* basic functions */
+
+ZEXTERN const char * ZEXPORT zlibVersion(void);
+/* The application can compare zlibVersion and ZLIB_VERSION for consistency.
+   If the first character differs, the library code actually used is not
+   compatible with the zlib.h header file used by the application.  This check
+   is automatically made by deflateInit and inflateInit.
+ */
+
+/*
+ZEXTERN int ZEXPORT deflateInit(z_streamp strm, int level);
+
+     Initializes the internal stream state for compression.  The fields
+   zalloc, zfree and opaque must be initialized before by the caller.  If
+   zalloc and zfree are set to Z_NULL, deflateInit updates them to use default
+   allocation functions.  total_in, total_out, adler, and msg are initialized.
+
+     The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9:
+   1 gives best speed, 9 gives best compression, 0 gives no compression at all
+   (the input data is simply copied a block at a time).  Z_DEFAULT_COMPRESSION
+   requests a default compromise between speed and compression (currently
+   equivalent to level 6).
+
+     deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough
+   memory, Z_STREAM_ERROR if level is not a valid compression level, or
+   Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible
+   with the version assumed by the caller (ZLIB_VERSION).  msg is set to null
+   if there is no error message.  deflateInit does not perform any compression:
+   this will be done by deflate().
+*/
+
+
+ZEXTERN int ZEXPORT deflate(z_streamp strm, int flush);
+/*
+    deflate compresses as much data as possible, and stops when the input
+  buffer becomes empty or the output buffer becomes full.  It may introduce
+  some output latency (reading input without producing any output) except when
+  forced to flush.
+
+    The detailed semantics are as follows.  deflate performs one or both of the
+  following actions:
+
+  - Compress more input starting at next_in and update next_in and avail_in
+    accordingly.  If not all input can be processed (because there is not
+    enough room in the output buffer), next_in and avail_in are updated and
+    processing will resume at this point for the next call of deflate().
+
+  - Generate more output starting at next_out and update next_out and avail_out
+    accordingly.  This action is forced if the parameter flush is non zero.
+    Forcing flush frequently degrades the compression ratio, so this parameter
+    should be set only when necessary.  Some output may be provided even if
+    flush is zero.
+
+    Before the call of deflate(), the application should ensure that at least
+  one of the actions is possible, by providing more input and/or consuming more
+  output, and updating avail_in or avail_out accordingly; avail_out should
+  never be zero before the call.  The application can consume the compressed
+  output when it wants, for example when the output buffer is full (avail_out
+  == 0), or after each call of deflate().  If deflate returns Z_OK and with
+  zero avail_out, it must be called again after making room in the output
+  buffer because there might be more output pending. See deflatePending(),
+  which can be used if desired to determine whether or not there is more output
+  in that case.
+
+    Normally the parameter flush is set to Z_NO_FLUSH, which allows deflate to
+  decide how much data to accumulate before producing output, in order to
+  maximize compression.
+
+    If the parameter flush is set to Z_SYNC_FLUSH, all pending output is
+  flushed to the output buffer and the output is aligned on a byte boundary, so
+  that the decompressor can get all input data available so far.  (In
+  particular avail_in is zero after the call if enough output space has been
+  provided before the call.) Flushing may degrade compression for some
+  compression algorithms and so it should be used only when necessary.  This
+  completes the current deflate block and follows it with an empty stored block
+  that is three bits plus filler bits to the next byte, followed by four bytes
+  (00 00 ff ff).
+
+    If flush is set to Z_PARTIAL_FLUSH, all pending output is flushed to the
+  output buffer, but the output is not aligned to a byte boundary.  All of the
+  input data so far will be available to the decompressor, as for Z_SYNC_FLUSH.
+  This completes the current deflate block and follows it with an empty fixed
+  codes block that is 10 bits long.  This assures that enough bytes are output
+  in order for the decompressor to finish the block before the empty fixed
+  codes block.
+
+    If flush is set to Z_BLOCK, a deflate block is completed and emitted, as
+  for Z_SYNC_FLUSH, but the output is not aligned on a byte boundary, and up to
+  seven bits of the current block are held to be written as the next byte after
+  the next deflate block is completed.  In this case, the decompressor may not
+  be provided enough bits at this point in order to complete decompression of
+  the data provided so far to the compressor.  It may need to wait for the next
+  block to be emitted.  This is for advanced applications that need to control
+  the emission of deflate blocks.
+
+    If flush is set to Z_FULL_FLUSH, all output is flushed as with
+  Z_SYNC_FLUSH, and the compression state is reset so that decompression can
+  restart from this point if previous compressed data has been damaged or if
+  random access is desired.  Using Z_FULL_FLUSH too often can seriously degrade
+  compression.
+
+    If deflate returns with avail_out == 0, this function must be called again
+  with the same value of the flush parameter and more output space (updated
+  avail_out), until the flush is complete (deflate returns with non-zero
+  avail_out).  In the case of a Z_FULL_FLUSH or Z_SYNC_FLUSH, make sure that
+  avail_out is greater than six when the flush marker begins, in order to avoid
+  repeated flush markers upon calling deflate() again when avail_out == 0.
+
+    If the parameter flush is set to Z_FINISH, pending input is processed,
+  pending output is flushed and deflate returns with Z_STREAM_END if there was
+  enough output space.  If deflate returns with Z_OK or Z_BUF_ERROR, this
+  function must be called again with Z_FINISH and more output space (updated
+  avail_out) but no more input data, until it returns with Z_STREAM_END or an
+  error.  After deflate has returned Z_STREAM_END, the only possible operations
+  on the stream are deflateReset or deflateEnd.
+
+    Z_FINISH can be used in the first deflate call after deflateInit if all the
+  compression is to be done in a single step.  In order to complete in one
+  call, avail_out must be at least the value returned by deflateBound (see
+  below).  Then deflate is guaranteed to return Z_STREAM_END.  If not enough
+  output space is provided, deflate will not return Z_STREAM_END, and it must
+  be called again as described above.
+
+    deflate() sets strm->adler to the Adler-32 checksum of all input read
+  so far (that is, total_in bytes).  If a gzip stream is being generated, then
+  strm->adler will be the CRC-32 checksum of the input read so far.  (See
+  deflateInit2 below.)
+
+    deflate() may update strm->data_type if it can make a good guess about
+  the input data type (Z_BINARY or Z_TEXT).  If in doubt, the data is
+  considered binary.  This field is only for information purposes and does not
+  affect the compression algorithm in any manner.
+
+    deflate() returns Z_OK if some progress has been made (more input
+  processed or more output produced), Z_STREAM_END if all input has been
+  consumed and all output has been produced (only when flush is set to
+  Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example
+  if next_in or next_out was Z_NULL or the state was inadvertently written over
+  by the application), or Z_BUF_ERROR if no progress is possible (for example
+  avail_in or avail_out was zero).  Note that Z_BUF_ERROR is not fatal, and
+  deflate() can be called again with more input and more output space to
+  continue compressing.
+*/
+
+
+ZEXTERN int ZEXPORT deflateEnd(z_streamp strm);
+/*
+     All dynamically allocated data structures for this stream are freed.
+   This function discards any unprocessed input and does not flush any pending
+   output.
+
+     deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the
+   stream state was inconsistent, Z_DATA_ERROR if the stream was freed
+   prematurely (some input or output was discarded).  In the error case, msg
+   may be set but then points to a static string (which must not be
+   deallocated).
+*/
+
+
+/*
+ZEXTERN int ZEXPORT inflateInit(z_streamp strm);
+
+     Initializes the internal stream state for decompression.  The fields
+   next_in, avail_in, zalloc, zfree and opaque must be initialized before by
+   the caller.  In the current version of inflate, the provided input is not
+   read or consumed.  The allocation of a sliding window will be deferred to
+   the first call of inflate (if the decompression does not complete on the
+   first call).  If zalloc and zfree are set to Z_NULL, inflateInit updates
+   them to use default allocation functions.  total_in, total_out, adler, and
+   msg are initialized.
+
+     inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough
+   memory, Z_VERSION_ERROR if the zlib library version is incompatible with the
+   version assumed by the caller, or Z_STREAM_ERROR if the parameters are
+   invalid, such as a null pointer to the structure.  msg is set to null if
+   there is no error message.  inflateInit does not perform any decompression.
+   Actual decompression will be done by inflate().  So next_in, and avail_in,
+   next_out, and avail_out are unused and unchanged.  The current
+   implementation of inflateInit() does not process any header information --
+   that is deferred until inflate() is called.
+*/
+
+
+ZEXTERN int ZEXPORT inflate(z_streamp strm, int flush);
+/*
+    inflate decompresses as much data as possible, and stops when the input
+  buffer becomes empty or the output buffer becomes full.  It may introduce
+  some output latency (reading input without producing any output) except when
+  forced to flush.
+
+  The detailed semantics are as follows.  inflate performs one or both of the
+  following actions:
+
+  - Decompress more input starting at next_in and update next_in and avail_in
+    accordingly.  If not all input can be processed (because there is not
+    enough room in the output buffer), then next_in and avail_in are updated
+    accordingly, and processing will resume at this point for the next call of
+    inflate().
+
+  - Generate more output starting at next_out and update next_out and avail_out
+    accordingly.  inflate() provides as much output as possible, until there is
+    no more input data or no more space in the output buffer (see below about
+    the flush parameter).
+
+    Before the call of inflate(), the application should ensure that at least
+  one of the actions is possible, by providing more input and/or consuming more
+  output, and updating the next_* and avail_* values accordingly.  If the
+  caller of inflate() does not provide both available input and available
+  output space, it is possible that there will be no progress made.  The
+  application can consume the uncompressed output when it wants, for example
+  when the output buffer is full (avail_out == 0), or after each call of
+  inflate().  If inflate returns Z_OK and with zero avail_out, it must be
+  called again after making room in the output buffer because there might be
+  more output pending.
+
+    The flush parameter of inflate() can be Z_NO_FLUSH, Z_SYNC_FLUSH, Z_FINISH,
+  Z_BLOCK, or Z_TREES.  Z_SYNC_FLUSH requests that inflate() flush as much
+  output as possible to the output buffer.  Z_BLOCK requests that inflate()
+  stop if and when it gets to the next deflate block boundary.  When decoding
+  the zlib or gzip format, this will cause inflate() to return immediately
+  after the header and before the first block.  When doing a raw inflate,
+  inflate() will go ahead and process the first block, and will return when it
+  gets to the end of that block, or when it runs out of data.
+
+    The Z_BLOCK option assists in appending to or combining deflate streams.
+  To assist in this, on return inflate() always sets strm->data_type to the
+  number of unused bits in the last byte taken from strm->next_in, plus 64 if
+  inflate() is currently decoding the last block in the deflate stream, plus
+  128 if inflate() returned immediately after decoding an end-of-block code or
+  decoding the complete header up to just before the first byte of the deflate
+  stream.  The end-of-block will not be indicated until all of the uncompressed
+  data from that block has been written to strm->next_out.  The number of
+  unused bits may in general be greater than seven, except when bit 7 of
+  data_type is set, in which case the number of unused bits will be less than
+  eight.  data_type is set as noted here every time inflate() returns for all
+  flush options, and so can be used to determine the amount of currently
+  consumed input in bits.
+
+    The Z_TREES option behaves as Z_BLOCK does, but it also returns when the
+  end of each deflate block header is reached, before any actual data in that
+  block is decoded.  This allows the caller to determine the length of the
+  deflate block header for later use in random access within a deflate block.
+  256 is added to the value of strm->data_type when inflate() returns
+  immediately after reaching the end of the deflate block header.
+
+    inflate() should normally be called until it returns Z_STREAM_END or an
+  error.  However if all decompression is to be performed in a single step (a
+  single call of inflate), the parameter flush should be set to Z_FINISH.  In
+  this case all pending input is processed and all pending output is flushed;
+  avail_out must be large enough to hold all of the uncompressed data for the
+  operation to complete.  (The size of the uncompressed data may have been
+  saved by the compressor for this purpose.)  The use of Z_FINISH is not
+  required to perform an inflation in one step.  However it may be used to
+  inform inflate that a faster approach can be used for the single inflate()
+  call.  Z_FINISH also informs inflate to not maintain a sliding window if the
+  stream completes, which reduces inflate's memory footprint.  If the stream
+  does not complete, either because not all of the stream is provided or not
+  enough output space is provided, then a sliding window will be allocated and
+  inflate() can be called again to continue the operation as if Z_NO_FLUSH had
+  been used.
+
+     In this implementation, inflate() always flushes as much output as
+  possible to the output buffer, and always uses the faster approach on the
+  first call.  So the effects of the flush parameter in this implementation are
+  on the return value of inflate() as noted below, when inflate() returns early
+  when Z_BLOCK or Z_TREES is used, and when inflate() avoids the allocation of
+  memory for a sliding window when Z_FINISH is used.
+
+     If a preset dictionary is needed after this call (see inflateSetDictionary
+  below), inflate sets strm->adler to the Adler-32 checksum of the dictionary
+  chosen by the compressor and returns Z_NEED_DICT; otherwise it sets
+  strm->adler to the Adler-32 checksum of all output produced so far (that is,
+  total_out bytes) and returns Z_OK, Z_STREAM_END or an error code as described
+  below.  At the end of the stream, inflate() checks that its computed Adler-32
+  checksum is equal to that saved by the compressor and returns Z_STREAM_END
+  only if the checksum is correct.
+
+    inflate() can decompress and check either zlib-wrapped or gzip-wrapped
+  deflate data.  The header type is detected automatically, if requested when
+  initializing with inflateInit2().  Any information contained in the gzip
+  header is not retained unless inflateGetHeader() is used.  When processing
+  gzip-wrapped deflate data, strm->adler32 is set to the CRC-32 of the output
+  produced so far.  The CRC-32 is checked against the gzip trailer, as is the
+  uncompressed length, modulo 2^32.
+
+    inflate() returns Z_OK if some progress has been made (more input processed
+  or more output produced), Z_STREAM_END if the end of the compressed data has
+  been reached and all uncompressed output has been produced, Z_NEED_DICT if a
+  preset dictionary is needed at this point, Z_DATA_ERROR if the input data was
+  corrupted (input stream not conforming to the zlib format or incorrect check
+  value, in which case strm->msg points to a string with a more specific
+  error), Z_STREAM_ERROR if the stream structure was inconsistent (for example
+  next_in or next_out was Z_NULL, or the state was inadvertently written over
+  by the application), Z_MEM_ERROR if there was not enough memory, Z_BUF_ERROR
+  if no progress was possible or if there was not enough room in the output
+  buffer when Z_FINISH is used.  Note that Z_BUF_ERROR is not fatal, and
+  inflate() can be called again with more input and more output space to
+  continue decompressing.  If Z_DATA_ERROR is returned, the application may
+  then call inflateSync() to look for a good compression block if a partial
+  recovery of the data is to be attempted.
+*/
+
+
+ZEXTERN int ZEXPORT inflateEnd(z_streamp strm);
+/*
+     All dynamically allocated data structures for this stream are freed.
+   This function discards any unprocessed input and does not flush any pending
+   output.
+
+     inflateEnd returns Z_OK if success, or Z_STREAM_ERROR if the stream state
+   was inconsistent.
+*/
+
+
+                        /* Advanced functions */
+
+/*
+    The following functions are needed only in some special applications.
+*/
+
+/*
+ZEXTERN int ZEXPORT deflateInit2(z_streamp strm,
+                                 int level,
+                                 int method,
+                                 int windowBits,
+                                 int memLevel,
+                                 int strategy);
+
+     This is another version of deflateInit with more compression options.  The
+   fields zalloc, zfree and opaque must be initialized before by the caller.
+
+     The method parameter is the compression method.  It must be Z_DEFLATED in
+   this version of the library.
+
+     The windowBits parameter is the base two logarithm of the window size
+   (the size of the history buffer).  It should be in the range 8..15 for this
+   version of the library.  Larger values of this parameter result in better
+   compression at the expense of memory usage.  The default value is 15 if
+   deflateInit is used instead.
+
+     For the current implementation of deflate(), a windowBits value of 8 (a
+   window size of 256 bytes) is not supported.  As a result, a request for 8
+   will result in 9 (a 512-byte window).  In that case, providing 8 to
+   inflateInit2() will result in an error when the zlib header with 9 is
+   checked against the initialization of inflate().  The remedy is to not use 8
+   with deflateInit2() with this initialization, or at least in that case use 9
+   with inflateInit2().
+
+     windowBits can also be -8..-15 for raw deflate.  In this case, -windowBits
+   determines the window size.  deflate() will then generate raw deflate data
+   with no zlib header or trailer, and will not compute a check value.
+
+     windowBits can also be greater than 15 for optional gzip encoding.  Add
+   16 to windowBits to write a simple gzip header and trailer around the
+   compressed data instead of a zlib wrapper.  The gzip header will have no
+   file name, no extra data, no comment, no modification time (set to zero), no
+   header crc, and the operating system will be set to the appropriate value,
+   if the operating system was determined at compile time.  If a gzip stream is
+   being written, strm->adler is a CRC-32 instead of an Adler-32.
+
+     For raw deflate or gzip encoding, a request for a 256-byte window is
+   rejected as invalid, since only the zlib header provides a means of
+   transmitting the window size to the decompressor.
+
+     The memLevel parameter specifies how much memory should be allocated
+   for the internal compression state.  memLevel=1 uses minimum memory but is
+   slow and reduces compression ratio; memLevel=9 uses maximum memory for
+   optimal speed.  The default value is 8.  See zconf.h for total memory usage
+   as a function of windowBits and memLevel.
+
+     The strategy parameter is used to tune the compression algorithm.  Use the
+   value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a
+   filter (or predictor), Z_HUFFMAN_ONLY to force Huffman encoding only (no
+   string match), or Z_RLE to limit match distances to one (run-length
+   encoding).  Filtered data consists mostly of small values with a somewhat
+   random distribution.  In this case, the compression algorithm is tuned to
+   compress them better.  The effect of Z_FILTERED is to force more Huffman
+   coding and less string matching; it is somewhat intermediate between
+   Z_DEFAULT_STRATEGY and Z_HUFFMAN_ONLY.  Z_RLE is designed to be almost as
+   fast as Z_HUFFMAN_ONLY, but give better compression for PNG image data.  The
+   strategy parameter only affects the compression ratio but not the
+   correctness of the compressed output even if it is not set appropriately.
+   Z_FIXED prevents the use of dynamic Huffman codes, allowing for a simpler
+   decoder for special applications.
+
+     deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
+   memory, Z_STREAM_ERROR if any parameter is invalid (such as an invalid
+   method), or Z_VERSION_ERROR if the zlib library version (zlib_version) is
+   incompatible with the version assumed by the caller (ZLIB_VERSION).  msg is
+   set to null if there is no error message.  deflateInit2 does not perform any
+   compression: this will be done by deflate().
+*/
+
+ZEXTERN int ZEXPORT deflateSetDictionary(z_streamp strm,
+                                         const Bytef *dictionary,
+                                         uInt  dictLength);
+/*
+     Initializes the compression dictionary from the given byte sequence
+   without producing any compressed output.  When using the zlib format, this
+   function must be called immediately after deflateInit, deflateInit2 or
+   deflateReset, and before any call of deflate.  When doing raw deflate, this
+   function must be called either before any call of deflate, or immediately
+   after the completion of a deflate block, i.e. after all input has been
+   consumed and all output has been delivered when using any of the flush
+   options Z_BLOCK, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, or Z_FULL_FLUSH.  The
+   compressor and decompressor must use exactly the same dictionary (see
+   inflateSetDictionary).
+
+     The dictionary should consist of strings (byte sequences) that are likely
+   to be encountered later in the data to be compressed, with the most commonly
+   used strings preferably put towards the end of the dictionary.  Using a
+   dictionary is most useful when the data to be compressed is short and can be
+   predicted with good accuracy; the data can then be compressed better than
+   with the default empty dictionary.
+
+     Depending on the size of the compression data structures selected by
+   deflateInit or deflateInit2, a part of the dictionary may in effect be
+   discarded, for example if the dictionary is larger than the window size
+   provided in deflateInit or deflateInit2.  Thus the strings most likely to be
+   useful should be put at the end of the dictionary, not at the front.  In
+   addition, the current implementation of deflate will use at most the window
+   size minus 262 bytes of the provided dictionary.
+
+     Upon return of this function, strm->adler is set to the Adler-32 value
+   of the dictionary; the decompressor may later use this value to determine
+   which dictionary has been used by the compressor.  (The Adler-32 value
+   applies to the whole dictionary even if only a subset of the dictionary is
+   actually used by the compressor.) If a raw deflate was requested, then the
+   Adler-32 value is not computed and strm->adler is not set.
+
+     deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a
+   parameter is invalid (e.g.  dictionary being Z_NULL) or the stream state is
+   inconsistent (for example if deflate has already been called for this stream
+   or if not at a block boundary for raw deflate).  deflateSetDictionary does
+   not perform any compression: this will be done by deflate().
+*/
+
+ZEXTERN int ZEXPORT deflateGetDictionary(z_streamp strm,
+                                         Bytef *dictionary,
+                                         uInt  *dictLength);
+/*
+     Returns the sliding dictionary being maintained by deflate.  dictLength is
+   set to the number of bytes in the dictionary, and that many bytes are copied
+   to dictionary.  dictionary must have enough space, where 32768 bytes is
+   always enough.  If deflateGetDictionary() is called with dictionary equal to
+   Z_NULL, then only the dictionary length is returned, and nothing is copied.
+   Similarly, if dictLength is Z_NULL, then it is not set.
+
+     deflateGetDictionary() may return a length less than the window size, even
+   when more than the window size in input has been provided. It may return up
+   to 258 bytes less in that case, due to how zlib's implementation of deflate
+   manages the sliding window and lookahead for matches, where matches can be
+   up to 258 bytes long. If the application needs the last window-size bytes of
+   input, then that would need to be saved by the application outside of zlib.
+
+     deflateGetDictionary returns Z_OK on success, or Z_STREAM_ERROR if the
+   stream state is inconsistent.
+*/
+
+ZEXTERN int ZEXPORT deflateCopy(z_streamp dest,
+                                z_streamp source);
+/*
+     Sets the destination stream as a complete copy of the source stream.
+
+     This function can be useful when several compression strategies will be
+   tried, for example when there are several ways of pre-processing the input
+   data with a filter.  The streams that will be discarded should then be freed
+   by calling deflateEnd.  Note that deflateCopy duplicates the internal
+   compression state which can be quite large, so this strategy is slow and can
+   consume lots of memory.
+
+     deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not
+   enough memory, Z_STREAM_ERROR if the source stream state was inconsistent
+   (such as zalloc being Z_NULL).  msg is left unchanged in both source and
+   destination.
+*/
+
+ZEXTERN int ZEXPORT deflateReset(z_streamp strm);
+/*
+     This function is equivalent to deflateEnd followed by deflateInit, but
+   does not free and reallocate the internal compression state.  The stream
+   will leave the compression level and any other attributes that may have been
+   set unchanged.  total_in, total_out, adler, and msg are initialized.
+
+     deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
+   stream state was inconsistent (such as zalloc or state being Z_NULL).
+*/
+
+ZEXTERN int ZEXPORT deflateParams(z_streamp strm,
+                                  int level,
+                                  int strategy);
+/*
+     Dynamically update the compression level and compression strategy.  The
+   interpretation of level and strategy is as in deflateInit2().  This can be
+   used to switch between compression and straight copy of the input data, or
+   to switch to a different kind of input data requiring a different strategy.
+   If the compression approach (which is a function of the level) or the
+   strategy is changed, and if there have been any deflate() calls since the
+   state was initialized or reset, then the input available so far is
+   compressed with the old level and strategy using deflate(strm, Z_BLOCK).
+   There are three approaches for the compression levels 0, 1..3, and 4..9
+   respectively.  The new level and strategy will take effect at the next call
+   of deflate().
+
+     If a deflate(strm, Z_BLOCK) is performed by deflateParams(), and it does
+   not have enough output space to complete, then the parameter change will not
+   take effect.  In this case, deflateParams() can be called again with the
+   same parameters and more output space to try again.
+
+     In order to assure a change in the parameters on the first try, the
+   deflate stream should be flushed using deflate() with Z_BLOCK or other flush
+   request until strm.avail_out is not zero, before calling deflateParams().
+   Then no more input data should be provided before the deflateParams() call.
+   If this is done, the old level and strategy will be applied to the data
+   compressed before deflateParams(), and the new level and strategy will be
+   applied to the data compressed after deflateParams().
+
+     deflateParams returns Z_OK on success, Z_STREAM_ERROR if the source stream
+   state was inconsistent or if a parameter was invalid, or Z_BUF_ERROR if
+   there was not enough output space to complete the compression of the
+   available input data before a change in the strategy or approach.  Note that
+   in the case of a Z_BUF_ERROR, the parameters are not changed.  A return
+   value of Z_BUF_ERROR is not fatal, in which case deflateParams() can be
+   retried with more output space.
+*/
+
+ZEXTERN int ZEXPORT deflateTune(z_streamp strm,
+                                int good_length,
+                                int max_lazy,
+                                int nice_length,
+                                int max_chain);
+/*
+     Fine tune deflate's internal compression parameters.  This should only be
+   used by someone who understands the algorithm used by zlib's deflate for
+   searching for the best matching string, and even then only by the most
+   fanatic optimizer trying to squeeze out the last compressed bit for their
+   specific input data.  Read the deflate.c source code for the meaning of the
+   max_lazy, good_length, nice_length, and max_chain parameters.
+
+     deflateTune() can be called after deflateInit() or deflateInit2(), and
+   returns Z_OK on success, or Z_STREAM_ERROR for an invalid deflate stream.
+ */
+
+ZEXTERN uLong ZEXPORT deflateBound(z_streamp strm,
+                                   uLong sourceLen);
+/*
+     deflateBound() returns an upper bound on the compressed size after
+   deflation of sourceLen bytes.  It must be called after deflateInit() or
+   deflateInit2(), and after deflateSetHeader(), if used.  This would be used
+   to allocate an output buffer for deflation in a single pass, and so would be
+   called before deflate().  If that first deflate() call is provided the
+   sourceLen input bytes, an output buffer allocated to the size returned by
+   deflateBound(), and the flush value Z_FINISH, then deflate() is guaranteed
+   to return Z_STREAM_END.  Note that it is possible for the compressed size to
+   be larger than the value returned by deflateBound() if flush options other
+   than Z_FINISH or Z_NO_FLUSH are used.
+*/
+
+ZEXTERN int ZEXPORT deflatePending(z_streamp strm,
+                                   unsigned *pending,
+                                   int *bits);
+/*
+     deflatePending() returns the number of bytes and bits of output that have
+   been generated, but not yet provided in the available output.  The bytes not
+   provided would be due to the available output space having being consumed.
+   The number of bits of output not provided are between 0 and 7, where they
+   await more bits to join them in order to fill out a full byte.  If pending
+   or bits are Z_NULL, then those values are not set.
+
+     deflatePending returns Z_OK if success, or Z_STREAM_ERROR if the source
+   stream state was inconsistent.
+ */
+
+ZEXTERN int ZEXPORT deflatePrime(z_streamp strm,
+                                 int bits,
+                                 int value);
+/*
+     deflatePrime() inserts bits in the deflate output stream.  The intent
+   is that this function is used to start off the deflate output with the bits
+   leftover from a previous deflate stream when appending to it.  As such, this
+   function can only be used for raw deflate, and must be used before the first
+   deflate() call after a deflateInit2() or deflateReset().  bits must be less
+   than or equal to 16, and that many of the least significant bits of value
+   will be inserted in the output.
+
+     deflatePrime returns Z_OK if success, Z_BUF_ERROR if there was not enough
+   room in the internal buffer to insert the bits, or Z_STREAM_ERROR if the
+   source stream state was inconsistent.
+*/
+
+ZEXTERN int ZEXPORT deflateSetHeader(z_streamp strm,
+                                     gz_headerp head);
+/*
+     deflateSetHeader() provides gzip header information for when a gzip
+   stream is requested by deflateInit2().  deflateSetHeader() may be called
+   after deflateInit2() or deflateReset() and before the first call of
+   deflate().  The text, time, os, extra field, name, and comment information
+   in the provided gz_header structure are written to the gzip header (xflag is
+   ignored -- the extra flags are set according to the compression level).  The
+   caller must assure that, if not Z_NULL, name and comment are terminated with
+   a zero byte, and that if extra is not Z_NULL, that extra_len bytes are
+   available there.  If hcrc is true, a gzip header crc is included.  Note that
+   the current versions of the command-line version of gzip (up through version
+   1.3.x) do not support header crc's, and will report that it is a "multi-part
+   gzip file" and give up.
+
+     If deflateSetHeader is not used, the default gzip header has text false,
+   the time set to zero, and os set to the current operating system, with no
+   extra, name, or comment fields.  The gzip header is returned to the default
+   state by deflateReset().
+
+     deflateSetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source
+   stream state was inconsistent.
+*/
+
+/*
+ZEXTERN int ZEXPORT inflateInit2(z_streamp strm,
+                                 int windowBits);
+
+     This is another version of inflateInit with an extra parameter.  The
+   fields next_in, avail_in, zalloc, zfree and opaque must be initialized
+   before by the caller.
+
+     The windowBits parameter is the base two logarithm of the maximum window
+   size (the size of the history buffer).  It should be in the range 8..15 for
+   this version of the library.  The default value is 15 if inflateInit is used
+   instead.  windowBits must be greater than or equal to the windowBits value
+   provided to deflateInit2() while compressing, or it must be equal to 15 if
+   deflateInit2() was not used.  If a compressed stream with a larger window
+   size is given as input, inflate() will return with the error code
+   Z_DATA_ERROR instead of trying to allocate a larger window.
+
+     windowBits can also be zero to request that inflate use the window size in
+   the zlib header of the compressed stream.
+
+     windowBits can also be -8..-15 for raw inflate.  In this case, -windowBits
+   determines the window size.  inflate() will then process raw deflate data,
+   not looking for a zlib or gzip header, not generating a check value, and not
+   looking for any check values for comparison at the end of the stream.  This
+   is for use with other formats that use the deflate compressed data format
+   such as zip.  Those formats provide their own check values.  If a custom
+   format is developed using the raw deflate format for compressed data, it is
+   recommended that a check value such as an Adler-32 or a CRC-32 be applied to
+   the uncompressed data as is done in the zlib, gzip, and zip formats.  For
+   most applications, the zlib format should be used as is.  Note that comments
+   above on the use in deflateInit2() applies to the magnitude of windowBits.
+
+     windowBits can also be greater than 15 for optional gzip decoding.  Add
+   32 to windowBits to enable zlib and gzip decoding with automatic header
+   detection, or add 16 to decode only the gzip format (the zlib format will
+   return a Z_DATA_ERROR).  If a gzip stream is being decoded, strm->adler is a
+   CRC-32 instead of an Adler-32.  Unlike the gunzip utility and gzread() (see
+   below), inflate() will *not* automatically decode concatenated gzip members.
+   inflate() will return Z_STREAM_END at the end of the gzip member.  The state
+   would need to be reset to continue decoding a subsequent gzip member.  This
+   *must* be done if there is more data after a gzip member, in order for the
+   decompression to be compliant with the gzip standard (RFC 1952).
+
+     inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
+   memory, Z_VERSION_ERROR if the zlib library version is incompatible with the
+   version assumed by the caller, or Z_STREAM_ERROR if the parameters are
+   invalid, such as a null pointer to the structure.  msg is set to null if
+   there is no error message.  inflateInit2 does not perform any decompression
+   apart from possibly reading the zlib header if present: actual decompression
+   will be done by inflate().  (So next_in and avail_in may be modified, but
+   next_out and avail_out are unused and unchanged.) The current implementation
+   of inflateInit2() does not process any header information -- that is
+   deferred until inflate() is called.
+*/
+
+ZEXTERN int ZEXPORT inflateSetDictionary(z_streamp strm,
+                                         const Bytef *dictionary,
+                                         uInt  dictLength);
+/*
+     Initializes the decompression dictionary from the given uncompressed byte
+   sequence.  This function must be called immediately after a call of inflate,
+   if that call returned Z_NEED_DICT.  The dictionary chosen by the compressor
+   can be determined from the Adler-32 value returned by that call of inflate.
+   The compressor and decompressor must use exactly the same dictionary (see
+   deflateSetDictionary).  For raw inflate, this function can be called at any
+   time to set the dictionary.  If the provided dictionary is smaller than the
+   window and there is already data in the window, then the provided dictionary
+   will amend what's there.  The application must insure that the dictionary
+   that was used for compression is provided.
+
+     inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a
+   parameter is invalid (e.g.  dictionary being Z_NULL) or the stream state is
+   inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the
+   expected one (incorrect Adler-32 value).  inflateSetDictionary does not
+   perform any decompression: this will be done by subsequent calls of
+   inflate().
+*/
+
+ZEXTERN int ZEXPORT inflateGetDictionary(z_streamp strm,
+                                         Bytef *dictionary,
+                                         uInt  *dictLength);
+/*
+     Returns the sliding dictionary being maintained by inflate.  dictLength is
+   set to the number of bytes in the dictionary, and that many bytes are copied
+   to dictionary.  dictionary must have enough space, where 32768 bytes is
+   always enough.  If inflateGetDictionary() is called with dictionary equal to
+   Z_NULL, then only the dictionary length is returned, and nothing is copied.
+   Similarly, if dictLength is Z_NULL, then it is not set.
+
+     inflateGetDictionary returns Z_OK on success, or Z_STREAM_ERROR if the
+   stream state is inconsistent.
+*/
+
+ZEXTERN int ZEXPORT inflateSync(z_streamp strm);
+/*
+     Skips invalid compressed data until a possible full flush point (see above
+   for the description of deflate with Z_FULL_FLUSH) can be found, or until all
+   available input is skipped.  No output is provided.
+
+     inflateSync searches for a 00 00 FF FF pattern in the compressed data.
+   All full flush points have this pattern, but not all occurrences of this
+   pattern are full flush points.
+
+     inflateSync returns Z_OK if a possible full flush point has been found,
+   Z_BUF_ERROR if no more input was provided, Z_DATA_ERROR if no flush point
+   has been found, or Z_STREAM_ERROR if the stream structure was inconsistent.
+   In the success case, the application may save the current value of total_in
+   which indicates where valid compressed data was found.  In the error case,
+   the application may repeatedly call inflateSync, providing more input each
+   time, until success or end of the input data.
+*/
+
+ZEXTERN int ZEXPORT inflateCopy(z_streamp dest,
+                                z_streamp source);
+/*
+     Sets the destination stream as a complete copy of the source stream.
+
+     This function can be useful when randomly accessing a large stream.  The
+   first pass through the stream can periodically record the inflate state,
+   allowing restarting inflate at those points when randomly accessing the
+   stream.
+
+     inflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not
+   enough memory, Z_STREAM_ERROR if the source stream state was inconsistent
+   (such as zalloc being Z_NULL).  msg is left unchanged in both source and
+   destination.
+*/
+
+ZEXTERN int ZEXPORT inflateReset(z_streamp strm);
+/*
+     This function is equivalent to inflateEnd followed by inflateInit,
+   but does not free and reallocate the internal decompression state.  The
+   stream will keep attributes that may have been set by inflateInit2.
+   total_in, total_out, adler, and msg are initialized.
+
+     inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
+   stream state was inconsistent (such as zalloc or state being Z_NULL).
+*/
+
+ZEXTERN int ZEXPORT inflateReset2(z_streamp strm,
+                                  int windowBits);
+/*
+     This function is the same as inflateReset, but it also permits changing
+   the wrap and window size requests.  The windowBits parameter is interpreted
+   the same as it is for inflateInit2.  If the window size is changed, then the
+   memory allocated for the window is freed, and the window will be reallocated
+   by inflate() if needed.
+
+     inflateReset2 returns Z_OK if success, or Z_STREAM_ERROR if the source
+   stream state was inconsistent (such as zalloc or state being Z_NULL), or if
+   the windowBits parameter is invalid.
+*/
+
+ZEXTERN int ZEXPORT inflatePrime(z_streamp strm,
+                                 int bits,
+                                 int value);
+/*
+     This function inserts bits in the inflate input stream.  The intent is
+   that this function is used to start inflating at a bit position in the
+   middle of a byte.  The provided bits will be used before any bytes are used
+   from next_in.  This function should only be used with raw inflate, and
+   should be used before the first inflate() call after inflateInit2() or
+   inflateReset().  bits must be less than or equal to 16, and that many of the
+   least significant bits of value will be inserted in the input.
+
+     If bits is negative, then the input stream bit buffer is emptied.  Then
+   inflatePrime() can be called again to put bits in the buffer.  This is used
+   to clear out bits leftover after feeding inflate a block description prior
+   to feeding inflate codes.
+
+     inflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source
+   stream state was inconsistent.
+*/
+
+ZEXTERN long ZEXPORT inflateMark(z_streamp strm);
+/*
+     This function returns two values, one in the lower 16 bits of the return
+   value, and the other in the remaining upper bits, obtained by shifting the
+   return value down 16 bits.  If the upper value is -1 and the lower value is
+   zero, then inflate() is currently decoding information outside of a block.
+   If the upper value is -1 and the lower value is non-zero, then inflate is in
+   the middle of a stored block, with the lower value equaling the number of
+   bytes from the input remaining to copy.  If the upper value is not -1, then
+   it is the number of bits back from the current bit position in the input of
+   the code (literal or length/distance pair) currently being processed.  In
+   that case the lower value is the number of bytes already emitted for that
+   code.
+
+     A code is being processed if inflate is waiting for more input to complete
+   decoding of the code, or if it has completed decoding but is waiting for
+   more output space to write the literal or match data.
+
+     inflateMark() is used to mark locations in the input data for random
+   access, which may be at bit positions, and to note those cases where the
+   output of a code may span boundaries of random access blocks.  The current
+   location in the input stream can be determined from avail_in and data_type
+   as noted in the description for the Z_BLOCK flush parameter for inflate.
+
+     inflateMark returns the value noted above, or -65536 if the provided
+   source stream state was inconsistent.
+*/
+
+ZEXTERN int ZEXPORT inflateGetHeader(z_streamp strm,
+                                     gz_headerp head);
+/*
+     inflateGetHeader() requests that gzip header information be stored in the
+   provided gz_header structure.  inflateGetHeader() may be called after
+   inflateInit2() or inflateReset(), and before the first call of inflate().
+   As inflate() processes the gzip stream, head->done is zero until the header
+   is completed, at which time head->done is set to one.  If a zlib stream is
+   being decoded, then head->done is set to -1 to indicate that there will be
+   no gzip header information forthcoming.  Note that Z_BLOCK or Z_TREES can be
+   used to force inflate() to return immediately after header processing is
+   complete and before any actual data is decompressed.
+
+     The text, time, xflags, and os fields are filled in with the gzip header
+   contents.  hcrc is set to true if there is a header CRC.  (The header CRC
+   was valid if done is set to one.) If extra is not Z_NULL, then extra_max
+   contains the maximum number of bytes to write to extra.  Once done is true,
+   extra_len contains the actual extra field length, and extra contains the
+   extra field, or that field truncated if extra_max is less than extra_len.
+   If name is not Z_NULL, then up to name_max characters are written there,
+   terminated with a zero unless the length is greater than name_max.  If
+   comment is not Z_NULL, then up to comm_max characters are written there,
+   terminated with a zero unless the length is greater than comm_max.  When any
+   of extra, name, or comment are not Z_NULL and the respective field is not
+   present in the header, then that field is set to Z_NULL to signal its
+   absence.  This allows the use of deflateSetHeader() with the returned
+   structure to duplicate the header.  However if those fields are set to
+   allocated memory, then the application will need to save those pointers
+   elsewhere so that they can be eventually freed.
+
+     If inflateGetHeader is not used, then the header information is simply
+   discarded.  The header is always checked for validity, including the header
+   CRC if present.  inflateReset() will reset the process to discard the header
+   information.  The application would need to call inflateGetHeader() again to
+   retrieve the header from the next gzip stream.
+
+     inflateGetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source
+   stream state was inconsistent.
+*/
+
+/*
+ZEXTERN int ZEXPORT inflateBackInit(z_streamp strm, int windowBits,
+                                    unsigned char FAR *window);
+
+     Initialize the internal stream state for decompression using inflateBack()
+   calls.  The fields zalloc, zfree and opaque in strm must be initialized
+   before the call.  If zalloc and zfree are Z_NULL, then the default library-
+   derived memory allocation routines are used.  windowBits is the base two
+   logarithm of the window size, in the range 8..15.  window is a caller
+   supplied buffer of that size.  Except for special applications where it is
+   assured that deflate was used with small window sizes, windowBits must be 15
+   and a 32K byte window must be supplied to be able to decompress general
+   deflate streams.
+
+     See inflateBack() for the usage of these routines.
+
+     inflateBackInit will return Z_OK on success, Z_STREAM_ERROR if any of
+   the parameters are invalid, Z_MEM_ERROR if the internal state could not be
+   allocated, or Z_VERSION_ERROR if the version of the library does not match
+   the version of the header file.
+*/
+
+typedef unsigned (*in_func)(void FAR *,
+                            z_const unsigned char FAR * FAR *);
+typedef int (*out_func)(void FAR *, unsigned char FAR *, unsigned);
+
+ZEXTERN int ZEXPORT inflateBack(z_streamp strm,
+                                in_func in, void FAR *in_desc,
+                                out_func out, void FAR *out_desc);
+/*
+     inflateBack() does a raw inflate with a single call using a call-back
+   interface for input and output.  This is potentially more efficient than
+   inflate() for file i/o applications, in that it avoids copying between the
+   output and the sliding window by simply making the window itself the output
+   buffer.  inflate() can be faster on modern CPUs when used with large
+   buffers.  inflateBack() trusts the application to not change the output
+   buffer passed by the output function, at least until inflateBack() returns.
+
+     inflateBackInit() must be called first to allocate the internal state
+   and to initialize the state with the user-provided window buffer.
+   inflateBack() may then be used multiple times to inflate a complete, raw
+   deflate stream with each call.  inflateBackEnd() is then called to free the
+   allocated state.
+
+     A raw deflate stream is one with no zlib or gzip header or trailer.
+   This routine would normally be used in a utility that reads zip or gzip
+   files and writes out uncompressed files.  The utility would decode the
+   header and process the trailer on its own, hence this routine expects only
+   the raw deflate stream to decompress.  This is different from the default
+   behavior of inflate(), which expects a zlib header and trailer around the
+   deflate stream.
+
+     inflateBack() uses two subroutines supplied by the caller that are then
+   called by inflateBack() for input and output.  inflateBack() calls those
+   routines until it reads a complete deflate stream and writes out all of the
+   uncompressed data, or until it encounters an error.  The function's
+   parameters and return types are defined above in the in_func and out_func
+   typedefs.  inflateBack() will call in(in_desc, &buf) which should return the
+   number of bytes of provided input, and a pointer to that input in buf.  If
+   there is no input available, in() must return zero -- buf is ignored in that
+   case -- and inflateBack() will return a buffer error.  inflateBack() will
+   call out(out_desc, buf, len) to write the uncompressed data buf[0..len-1].
+   out() should return zero on success, or non-zero on failure.  If out()
+   returns non-zero, inflateBack() will return with an error.  Neither in() nor
+   out() are permitted to change the contents of the window provided to
+   inflateBackInit(), which is also the buffer that out() uses to write from.
+   The length written by out() will be at most the window size.  Any non-zero
+   amount of input may be provided by in().
+
+     For convenience, inflateBack() can be provided input on the first call by
+   setting strm->next_in and strm->avail_in.  If that input is exhausted, then
+   in() will be called.  Therefore strm->next_in must be initialized before
+   calling inflateBack().  If strm->next_in is Z_NULL, then in() will be called
+   immediately for input.  If strm->next_in is not Z_NULL, then strm->avail_in
+   must also be initialized, and then if strm->avail_in is not zero, input will
+   initially be taken from strm->next_in[0 ..  strm->avail_in - 1].
+
+     The in_desc and out_desc parameters of inflateBack() is passed as the
+   first parameter of in() and out() respectively when they are called.  These
+   descriptors can be optionally used to pass any information that the caller-
+   supplied in() and out() functions need to do their job.
+
+     On return, inflateBack() will set strm->next_in and strm->avail_in to
+   pass back any unused input that was provided by the last in() call.  The
+   return values of inflateBack() can be Z_STREAM_END on success, Z_BUF_ERROR
+   if in() or out() returned an error, Z_DATA_ERROR if there was a format error
+   in the deflate stream (in which case strm->msg is set to indicate the nature
+   of the error), or Z_STREAM_ERROR if the stream was not properly initialized.
+   In the case of Z_BUF_ERROR, an input or output error can be distinguished
+   using strm->next_in which will be Z_NULL only if in() returned an error.  If
+   strm->next_in is not Z_NULL, then the Z_BUF_ERROR was due to out() returning
+   non-zero.  (in() will always be called before out(), so strm->next_in is
+   assured to be defined if out() returns non-zero.)  Note that inflateBack()
+   cannot return Z_OK.
+*/
+
+ZEXTERN int ZEXPORT inflateBackEnd(z_streamp strm);
+/*
+     All memory allocated by inflateBackInit() is freed.
+
+     inflateBackEnd() returns Z_OK on success, or Z_STREAM_ERROR if the stream
+   state was inconsistent.
+*/
+
+ZEXTERN uLong ZEXPORT zlibCompileFlags(void);
+/* Return flags indicating compile-time options.
+
+    Type sizes, two bits each, 00 = 16 bits, 01 = 32, 10 = 64, 11 = other:
+     1.0: size of uInt
+     3.2: size of uLong
+     5.4: size of voidpf (pointer)
+     7.6: size of z_off_t
+
+    Compiler, assembler, and debug options:
+     8: ZLIB_DEBUG
+     9: ASMV or ASMINF -- use ASM code
+     10: ZLIB_WINAPI -- exported functions use the WINAPI calling convention
+     11: 0 (reserved)
+
+    One-time table building (smaller code, but not thread-safe if true):
+     12: BUILDFIXED -- build static block decoding tables when needed
+     13: DYNAMIC_CRC_TABLE -- build CRC calculation tables when needed
+     14,15: 0 (reserved)
+
+    Library content (indicates missing functionality):
+     16: NO_GZCOMPRESS -- gz* functions cannot compress (to avoid linking
+                          deflate code when not needed)
+     17: NO_GZIP -- deflate can't write gzip streams, and inflate can't detect
+                    and decode gzip streams (to avoid linking crc code)
+     18-19: 0 (reserved)
+
+    Operation variations (changes in library functionality):
+     20: PKZIP_BUG_WORKAROUND -- slightly more permissive inflate
+     21: FASTEST -- deflate algorithm with only one, lowest compression level
+     22,23: 0 (reserved)
+
+    The sprintf variant used by gzprintf (zero is best):
+     24: 0 = vs*, 1 = s* -- 1 means limited to 20 arguments after the format
+     25: 0 = *nprintf, 1 = *printf -- 1 means gzprintf() not secure!
+     26: 0 = returns value, 1 = void -- 1 means inferred string length returned
+
+    Remainder:
+     27-31: 0 (reserved)
+ */
+
+#ifndef Z_SOLO
+
+                        /* utility functions */
+
+/*
+     The following utility functions are implemented on top of the basic
+   stream-oriented functions.  To simplify the interface, some default options
+   are assumed (compression level and memory usage, standard memory allocation
+   functions).  The source code of these utility functions can be modified if
+   you need special options.
+*/
+
+ZEXTERN int ZEXPORT compress(Bytef *dest,   uLongf *destLen,
+                             const Bytef *source, uLong sourceLen);
+/*
+     Compresses the source buffer into the destination buffer.  sourceLen is
+   the byte length of the source buffer.  Upon entry, destLen is the total size
+   of the destination buffer, which must be at least the value returned by
+   compressBound(sourceLen).  Upon exit, destLen is the actual size of the
+   compressed data.  compress() is equivalent to compress2() with a level
+   parameter of Z_DEFAULT_COMPRESSION.
+
+     compress returns Z_OK if success, Z_MEM_ERROR if there was not
+   enough memory, Z_BUF_ERROR if there was not enough room in the output
+   buffer.
+*/
+
+ZEXTERN int ZEXPORT compress2(Bytef *dest,   uLongf *destLen,
+                              const Bytef *source, uLong sourceLen,
+                              int level);
+/*
+     Compresses the source buffer into the destination buffer.  The level
+   parameter has the same meaning as in deflateInit.  sourceLen is the byte
+   length of the source buffer.  Upon entry, destLen is the total size of the
+   destination buffer, which must be at least the value returned by
+   compressBound(sourceLen).  Upon exit, destLen is the actual size of the
+   compressed data.
+
+     compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
+   memory, Z_BUF_ERROR if there was not enough room in the output buffer,
+   Z_STREAM_ERROR if the level parameter is invalid.
+*/
+
+ZEXTERN uLong ZEXPORT compressBound(uLong sourceLen);
+/*
+     compressBound() returns an upper bound on the compressed size after
+   compress() or compress2() on sourceLen bytes.  It would be used before a
+   compress() or compress2() call to allocate the destination buffer.
+*/
+
+ZEXTERN int ZEXPORT uncompress(Bytef *dest,   uLongf *destLen,
+                               const Bytef *source, uLong sourceLen);
+/*
+     Decompresses the source buffer into the destination buffer.  sourceLen is
+   the byte length of the source buffer.  Upon entry, destLen is the total size
+   of the destination buffer, which must be large enough to hold the entire
+   uncompressed data.  (The size of the uncompressed data must have been saved
+   previously by the compressor and transmitted to the decompressor by some
+   mechanism outside the scope of this compression library.) Upon exit, destLen
+   is the actual size of the uncompressed data.
+
+     uncompress returns Z_OK if success, Z_MEM_ERROR if there was not
+   enough memory, Z_BUF_ERROR if there was not enough room in the output
+   buffer, or Z_DATA_ERROR if the input data was corrupted or incomplete.  In
+   the case where there is not enough room, uncompress() will fill the output
+   buffer with the uncompressed data up to that point.
+*/
+
+ZEXTERN int ZEXPORT uncompress2(Bytef *dest,   uLongf *destLen,
+                                const Bytef *source, uLong *sourceLen);
+/*
+     Same as uncompress, except that sourceLen is a pointer, where the
+   length of the source is *sourceLen.  On return, *sourceLen is the number of
+   source bytes consumed.
+*/
+
+                        /* gzip file access functions */
+
+/*
+     This library supports reading and writing files in gzip (.gz) format with
+   an interface similar to that of stdio, using the functions that start with
+   "gz".  The gzip format is different from the zlib format.  gzip is a gzip
+   wrapper, documented in RFC 1952, wrapped around a deflate stream.
+*/
+
+typedef struct gzFile_s *gzFile;    /* semi-opaque gzip file descriptor */
+
+/*
+ZEXTERN gzFile ZEXPORT gzopen(const char *path, const char *mode);
+
+     Open the gzip (.gz) file at path for reading and decompressing, or
+   compressing and writing.  The mode parameter is as in fopen ("rb" or "wb")
+   but can also include a compression level ("wb9") or a strategy: 'f' for
+   filtered data as in "wb6f", 'h' for Huffman-only compression as in "wb1h",
+   'R' for run-length encoding as in "wb1R", or 'F' for fixed code compression
+   as in "wb9F".  (See the description of deflateInit2 for more information
+   about the strategy parameter.)  'T' will request transparent writing or
+   appending with no compression and not using the gzip format.
+
+     "a" can be used instead of "w" to request that the gzip stream that will
+   be written be appended to the file.  "+" will result in an error, since
+   reading and writing to the same gzip file is not supported.  The addition of
+   "x" when writing will create the file exclusively, which fails if the file
+   already exists.  On systems that support it, the addition of "e" when
+   reading or writing will set the flag to close the file on an execve() call.
+
+     These functions, as well as gzip, will read and decode a sequence of gzip
+   streams in a file.  The append function of gzopen() can be used to create
+   such a file.  (Also see gzflush() for another way to do this.)  When
+   appending, gzopen does not test whether the file begins with a gzip stream,
+   nor does it look for the end of the gzip streams to begin appending.  gzopen
+   will simply append a gzip stream to the existing file.
+
+     gzopen can be used to read a file which is not in gzip format; in this
+   case gzread will directly read from the file without decompression.  When
+   reading, this will be detected automatically by looking for the magic two-
+   byte gzip header.
+
+     gzopen returns NULL if the file could not be opened, if there was
+   insufficient memory to allocate the gzFile state, or if an invalid mode was
+   specified (an 'r', 'w', or 'a' was not provided, or '+' was provided).
+   errno can be checked to determine if the reason gzopen failed was that the
+   file could not be opened.
+*/
+
+ZEXTERN gzFile ZEXPORT gzdopen(int fd, const char *mode);
+/*
+     Associate a gzFile with the file descriptor fd.  File descriptors are
+   obtained from calls like open, dup, creat, pipe or fileno (if the file has
+   been previously opened with fopen).  The mode parameter is as in gzopen.
+
+     The next call of gzclose on the returned gzFile will also close the file
+   descriptor fd, just like fclose(fdopen(fd, mode)) closes the file descriptor
+   fd.  If you want to keep fd open, use fd = dup(fd_keep); gz = gzdopen(fd,
+   mode);.  The duplicated descriptor should be saved to avoid a leak, since
+   gzdopen does not close fd if it fails.  If you are using fileno() to get the
+   file descriptor from a FILE *, then you will have to use dup() to avoid
+   double-close()ing the file descriptor.  Both gzclose() and fclose() will
+   close the associated file descriptor, so they need to have different file
+   descriptors.
+
+     gzdopen returns NULL if there was insufficient memory to allocate the
+   gzFile state, if an invalid mode was specified (an 'r', 'w', or 'a' was not
+   provided, or '+' was provided), or if fd is -1.  The file descriptor is not
+   used until the next gz* read, write, seek, or close operation, so gzdopen
+   will not detect if fd is invalid (unless fd is -1).
+*/
+
+ZEXTERN int ZEXPORT gzbuffer(gzFile file, unsigned size);
+/*
+     Set the internal buffer size used by this library's functions for file to
+   size.  The default buffer size is 8192 bytes.  This function must be called
+   after gzopen() or gzdopen(), and before any other calls that read or write
+   the file.  The buffer memory allocation is always deferred to the first read
+   or write.  Three times that size in buffer space is allocated.  A larger
+   buffer size of, for example, 64K or 128K bytes will noticeably increase the
+   speed of decompression (reading).
+
+     The new buffer size also affects the maximum length for gzprintf().
+
+     gzbuffer() returns 0 on success, or -1 on failure, such as being called
+   too late.
+*/
+
+ZEXTERN int ZEXPORT gzsetparams(gzFile file, int level, int strategy);
+/*
+     Dynamically update the compression level and strategy for file.  See the
+   description of deflateInit2 for the meaning of these parameters. Previously
+   provided data is flushed before applying the parameter changes.
+
+     gzsetparams returns Z_OK if success, Z_STREAM_ERROR if the file was not
+   opened for writing, Z_ERRNO if there is an error writing the flushed data,
+   or Z_MEM_ERROR if there is a memory allocation error.
+*/
+
+ZEXTERN int ZEXPORT gzread(gzFile file, voidp buf, unsigned len);
+/*
+     Read and decompress up to len uncompressed bytes from file into buf.  If
+   the input file is not in gzip format, gzread copies the given number of
+   bytes into the buffer directly from the file.
+
+     After reaching the end of a gzip stream in the input, gzread will continue
+   to read, looking for another gzip stream.  Any number of gzip streams may be
+   concatenated in the input file, and will all be decompressed by gzread().
+   If something other than a gzip stream is encountered after a gzip stream,
+   that remaining trailing garbage is ignored (and no error is returned).
+
+     gzread can be used to read a gzip file that is being concurrently written.
+   Upon reaching the end of the input, gzread will return with the available
+   data.  If the error code returned by gzerror is Z_OK or Z_BUF_ERROR, then
+   gzclearerr can be used to clear the end of file indicator in order to permit
+   gzread to be tried again.  Z_OK indicates that a gzip stream was completed
+   on the last gzread.  Z_BUF_ERROR indicates that the input file ended in the
+   middle of a gzip stream.  Note that gzread does not return -1 in the event
+   of an incomplete gzip stream.  This error is deferred until gzclose(), which
+   will return Z_BUF_ERROR if the last gzread ended in the middle of a gzip
+   stream.  Alternatively, gzerror can be used before gzclose to detect this
+   case.
+
+     gzread returns the number of uncompressed bytes actually read, less than
+   len for end of file, or -1 for error.  If len is too large to fit in an int,
+   then nothing is read, -1 is returned, and the error state is set to
+   Z_STREAM_ERROR.
+*/
+
+ZEXTERN z_size_t ZEXPORT gzfread(voidp buf, z_size_t size, z_size_t nitems,
+                                 gzFile file);
+/*
+     Read and decompress up to nitems items of size size from file into buf,
+   otherwise operating as gzread() does.  This duplicates the interface of
+   stdio's fread(), with size_t request and return types.  If the library
+   defines size_t, then z_size_t is identical to size_t.  If not, then z_size_t
+   is an unsigned integer type that can contain a pointer.
+
+     gzfread() returns the number of full items read of size size, or zero if
+   the end of the file was reached and a full item could not be read, or if
+   there was an error.  gzerror() must be consulted if zero is returned in
+   order to determine if there was an error.  If the multiplication of size and
+   nitems overflows, i.e. the product does not fit in a z_size_t, then nothing
+   is read, zero is returned, and the error state is set to Z_STREAM_ERROR.
+
+     In the event that the end of file is reached and only a partial item is
+   available at the end, i.e. the remaining uncompressed data length is not a
+   multiple of size, then the final partial item is nevertheless read into buf
+   and the end-of-file flag is set.  The length of the partial item read is not
+   provided, but could be inferred from the result of gztell().  This behavior
+   is the same as the behavior of fread() implementations in common libraries,
+   but it prevents the direct use of gzfread() to read a concurrently written
+   file, resetting and retrying on end-of-file, when size is not 1.
+*/
+
+ZEXTERN int ZEXPORT gzwrite(gzFile file, voidpc buf, unsigned len);
+/*
+     Compress and write the len uncompressed bytes at buf to file. gzwrite
+   returns the number of uncompressed bytes written or 0 in case of error.
+*/
+
+ZEXTERN z_size_t ZEXPORT gzfwrite(voidpc buf, z_size_t size,
+                                  z_size_t nitems, gzFile file);
+/*
+     Compress and write nitems items of size size from buf to file, duplicating
+   the interface of stdio's fwrite(), with size_t request and return types.  If
+   the library defines size_t, then z_size_t is identical to size_t.  If not,
+   then z_size_t is an unsigned integer type that can contain a pointer.
+
+     gzfwrite() returns the number of full items written of size size, or zero
+   if there was an error.  If the multiplication of size and nitems overflows,
+   i.e. the product does not fit in a z_size_t, then nothing is written, zero
+   is returned, and the error state is set to Z_STREAM_ERROR.
+*/
+
+ZEXTERN int ZEXPORTVA gzprintf(gzFile file, const char *format, ...);
+/*
+     Convert, format, compress, and write the arguments (...) to file under
+   control of the string format, as in fprintf.  gzprintf returns the number of
+   uncompressed bytes actually written, or a negative zlib error code in case
+   of error.  The number of uncompressed bytes written is limited to 8191, or
+   one less than the buffer size given to gzbuffer().  The caller should assure
+   that this limit is not exceeded.  If it is exceeded, then gzprintf() will
+   return an error (0) with nothing written.  In this case, there may also be a
+   buffer overflow with unpredictable consequences, which is possible only if
+   zlib was compiled with the insecure functions sprintf() or vsprintf(),
+   because the secure snprintf() or vsnprintf() functions were not available.
+   This can be determined using zlibCompileFlags().
+*/
+
+ZEXTERN int ZEXPORT gzputs(gzFile file, const char *s);
+/*
+     Compress and write the given null-terminated string s to file, excluding
+   the terminating null character.
+
+     gzputs returns the number of characters written, or -1 in case of error.
+*/
+
+ZEXTERN char * ZEXPORT gzgets(gzFile file, char *buf, int len);
+/*
+     Read and decompress bytes from file into buf, until len-1 characters are
+   read, or until a newline character is read and transferred to buf, or an
+   end-of-file condition is encountered.  If any characters are read or if len
+   is one, the string is terminated with a null character.  If no characters
+   are read due to an end-of-file or len is less than one, then the buffer is
+   left untouched.
+
+     gzgets returns buf which is a null-terminated string, or it returns NULL
+   for end-of-file or in case of error.  If there was an error, the contents at
+   buf are indeterminate.
+*/
+
+ZEXTERN int ZEXPORT gzputc(gzFile file, int c);
+/*
+     Compress and write c, converted to an unsigned char, into file.  gzputc
+   returns the value that was written, or -1 in case of error.
+*/
+
+ZEXTERN int ZEXPORT gzgetc(gzFile file);
+/*
+     Read and decompress one byte from file.  gzgetc returns this byte or -1
+   in case of end of file or error.  This is implemented as a macro for speed.
+   As such, it does not do all of the checking the other functions do.  I.e.
+   it does not check to see if file is NULL, nor whether the structure file
+   points to has been clobbered or not.
+*/
+
+ZEXTERN int ZEXPORT gzungetc(int c, gzFile file);
+/*
+     Push c back onto the stream for file to be read as the first character on
+   the next read.  At least one character of push-back is always allowed.
+   gzungetc() returns the character pushed, or -1 on failure.  gzungetc() will
+   fail if c is -1, and may fail if a character has been pushed but not read
+   yet.  If gzungetc is used immediately after gzopen or gzdopen, at least the
+   output buffer size of pushed characters is allowed.  (See gzbuffer above.)
+   The pushed character will be discarded if the stream is repositioned with
+   gzseek() or gzrewind().
+*/
+
+ZEXTERN int ZEXPORT gzflush(gzFile file, int flush);
+/*
+     Flush all pending output to file.  The parameter flush is as in the
+   deflate() function.  The return value is the zlib error number (see function
+   gzerror below).  gzflush is only permitted when writing.
+
+     If the flush parameter is Z_FINISH, the remaining data is written and the
+   gzip stream is completed in the output.  If gzwrite() is called again, a new
+   gzip stream will be started in the output.  gzread() is able to read such
+   concatenated gzip streams.
+
+     gzflush should be called only when strictly necessary because it will
+   degrade compression if called too often.
+*/
+
+/*
+ZEXTERN z_off_t ZEXPORT gzseek(gzFile file,
+                               z_off_t offset, int whence);
+
+     Set the starting position to offset relative to whence for the next gzread
+   or gzwrite on file.  The offset represents a number of bytes in the
+   uncompressed data stream.  The whence parameter is defined as in lseek(2);
+   the value SEEK_END is not supported.
+
+     If the file is opened for reading, this function is emulated but can be
+   extremely slow.  If the file is opened for writing, only forward seeks are
+   supported; gzseek then compresses a sequence of zeroes up to the new
+   starting position.
+
+     gzseek returns the resulting offset location as measured in bytes from
+   the beginning of the uncompressed stream, or -1 in case of error, in
+   particular if the file is opened for writing and the new starting position
+   would be before the current position.
+*/
+
+ZEXTERN int ZEXPORT    gzrewind(gzFile file);
+/*
+     Rewind file. This function is supported only for reading.
+
+     gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET).
+*/
+
+/*
+ZEXTERN z_off_t ZEXPORT    gztell(gzFile file);
+
+     Return the starting position for the next gzread or gzwrite on file.
+   This position represents a number of bytes in the uncompressed data stream,
+   and is zero when starting, even if appending or reading a gzip stream from
+   the middle of a file using gzdopen().
+
+     gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR)
+*/
+
+/*
+ZEXTERN z_off_t ZEXPORT gzoffset(gzFile file);
+
+     Return the current compressed (actual) read or write offset of file.  This
+   offset includes the count of bytes that precede the gzip stream, for example
+   when appending or when using gzdopen() for reading.  When reading, the
+   offset does not include as yet unused buffered input.  This information can
+   be used for a progress indicator.  On error, gzoffset() returns -1.
+*/
+
+ZEXTERN int ZEXPORT gzeof(gzFile file);
+/*
+     Return true (1) if the end-of-file indicator for file has been set while
+   reading, false (0) otherwise.  Note that the end-of-file indicator is set
+   only if the read tried to go past the end of the input, but came up short.
+   Therefore, just like feof(), gzeof() may return false even if there is no
+   more data to read, in the event that the last read request was for the exact
+   number of bytes remaining in the input file.  This will happen if the input
+   file size is an exact multiple of the buffer size.
+
+     If gzeof() returns true, then the read functions will return no more data,
+   unless the end-of-file indicator is reset by gzclearerr() and the input file
+   has grown since the previous end of file was detected.
+*/
+
+ZEXTERN int ZEXPORT gzdirect(gzFile file);
+/*
+     Return true (1) if file is being copied directly while reading, or false
+   (0) if file is a gzip stream being decompressed.
+
+     If the input file is empty, gzdirect() will return true, since the input
+   does not contain a gzip stream.
+
+     If gzdirect() is used immediately after gzopen() or gzdopen() it will
+   cause buffers to be allocated to allow reading the file to determine if it
+   is a gzip file.  Therefore if gzbuffer() is used, it should be called before
+   gzdirect().
+
+     When writing, gzdirect() returns true (1) if transparent writing was
+   requested ("wT" for the gzopen() mode), or false (0) otherwise.  (Note:
+   gzdirect() is not needed when writing.  Transparent writing must be
+   explicitly requested, so the application already knows the answer.  When
+   linking statically, using gzdirect() will include all of the zlib code for
+   gzip file reading and decompression, which may not be desired.)
+*/
+
+ZEXTERN int ZEXPORT    gzclose(gzFile file);
+/*
+     Flush all pending output for file, if necessary, close file and
+   deallocate the (de)compression state.  Note that once file is closed, you
+   cannot call gzerror with file, since its structures have been deallocated.
+   gzclose must not be called more than once on the same file, just as free
+   must not be called more than once on the same allocation.
+
+     gzclose will return Z_STREAM_ERROR if file is not valid, Z_ERRNO on a
+   file operation error, Z_MEM_ERROR if out of memory, Z_BUF_ERROR if the
+   last read ended in the middle of a gzip stream, or Z_OK on success.
+*/
+
+ZEXTERN int ZEXPORT gzclose_r(gzFile file);
+ZEXTERN int ZEXPORT gzclose_w(gzFile file);
+/*
+     Same as gzclose(), but gzclose_r() is only for use when reading, and
+   gzclose_w() is only for use when writing or appending.  The advantage to
+   using these instead of gzclose() is that they avoid linking in zlib
+   compression or decompression code that is not used when only reading or only
+   writing respectively.  If gzclose() is used, then both compression and
+   decompression code will be included the application when linking to a static
+   zlib library.
+*/
+
+ZEXTERN const char * ZEXPORT gzerror(gzFile file, int *errnum);
+/*
+     Return the error message for the last error which occurred on file.
+   errnum is set to zlib error number.  If an error occurred in the file system
+   and not in the compression library, errnum is set to Z_ERRNO and the
+   application may consult errno to get the exact error code.
+
+     The application must not modify the returned string.  Future calls to
+   this function may invalidate the previously returned string.  If file is
+   closed, then the string previously returned by gzerror will no longer be
+   available.
+
+     gzerror() should be used to distinguish errors from end-of-file for those
+   functions above that do not distinguish those cases in their return values.
+*/
+
+ZEXTERN void ZEXPORT gzclearerr(gzFile file);
+/*
+     Clear the error and end-of-file flags for file.  This is analogous to the
+   clearerr() function in stdio.  This is useful for continuing to read a gzip
+   file that is being written concurrently.
+*/
+
+#endif /* !Z_SOLO */
+
+                        /* checksum functions */
+
+/*
+     These functions are not related to compression but are exported
+   anyway because they might be useful in applications using the compression
+   library.
+*/
+
+ZEXTERN uLong ZEXPORT adler32(uLong adler, const Bytef *buf, uInt len);
+/*
+     Update a running Adler-32 checksum with the bytes buf[0..len-1] and
+   return the updated checksum. An Adler-32 value is in the range of a 32-bit
+   unsigned integer. If buf is Z_NULL, this function returns the required
+   initial value for the checksum.
+
+     An Adler-32 checksum is almost as reliable as a CRC-32 but can be computed
+   much faster.
+
+   Usage example:
+
+     uLong adler = adler32(0L, Z_NULL, 0);
+
+     while (read_buffer(buffer, length) != EOF) {
+       adler = adler32(adler, buffer, length);
+     }
+     if (adler != original_adler) error();
+*/
+
+ZEXTERN uLong ZEXPORT adler32_z(uLong adler, const Bytef *buf,
+                                z_size_t len);
+/*
+     Same as adler32(), but with a size_t length.
+*/
+
+/*
+ZEXTERN uLong ZEXPORT adler32_combine(uLong adler1, uLong adler2,
+                                      z_off_t len2);
+
+     Combine two Adler-32 checksums into one.  For two sequences of bytes, seq1
+   and seq2 with lengths len1 and len2, Adler-32 checksums were calculated for
+   each, adler1 and adler2.  adler32_combine() returns the Adler-32 checksum of
+   seq1 and seq2 concatenated, requiring only adler1, adler2, and len2.  Note
+   that the z_off_t type (like off_t) is a signed integer.  If len2 is
+   negative, the result has no meaning or utility.
+*/
+
+ZEXTERN uLong ZEXPORT crc32(uLong crc, const Bytef *buf, uInt len);
+/*
+     Update a running CRC-32 with the bytes buf[0..len-1] and return the
+   updated CRC-32. A CRC-32 value is in the range of a 32-bit unsigned integer.
+   If buf is Z_NULL, this function returns the required initial value for the
+   crc. Pre- and post-conditioning (one's complement) is performed within this
+   function so it shouldn't be done by the application.
+
+   Usage example:
+
+     uLong crc = crc32(0L, Z_NULL, 0);
+
+     while (read_buffer(buffer, length) != EOF) {
+       crc = crc32(crc, buffer, length);
+     }
+     if (crc != original_crc) error();
+*/
+
+ZEXTERN uLong ZEXPORT crc32_z(uLong crc, const Bytef *buf,
+                              z_size_t len);
+/*
+     Same as crc32(), but with a size_t length.
+*/
+
+/*
+ZEXTERN uLong ZEXPORT crc32_combine(uLong crc1, uLong crc2, z_off_t len2);
+
+     Combine two CRC-32 check values into one.  For two sequences of bytes,
+   seq1 and seq2 with lengths len1 and len2, CRC-32 check values were
+   calculated for each, crc1 and crc2.  crc32_combine() returns the CRC-32
+   check value of seq1 and seq2 concatenated, requiring only crc1, crc2, and
+   len2. len2 must be non-negative.
+*/
+
+/*
+ZEXTERN uLong ZEXPORT crc32_combine_gen(z_off_t len2);
+
+     Return the operator corresponding to length len2, to be used with
+   crc32_combine_op(). len2 must be non-negative.
+*/
+
+ZEXTERN uLong ZEXPORT crc32_combine_op(uLong crc1, uLong crc2, uLong op);
+/*
+     Give the same result as crc32_combine(), using op in place of len2. op is
+   is generated from len2 by crc32_combine_gen(). This will be faster than
+   crc32_combine() if the generated op is used more than once.
+*/
+
+
+                        /* various hacks, don't look :) */
+
+/* deflateInit and inflateInit are macros to allow checking the zlib version
+ * and the compiler's view of z_stream:
+ */
+ZEXTERN int ZEXPORT deflateInit_(z_streamp strm, int level,
+                                 const char *version, int stream_size);
+ZEXTERN int ZEXPORT inflateInit_(z_streamp strm,
+                                 const char *version, int stream_size);
+ZEXTERN int ZEXPORT deflateInit2_(z_streamp strm, int  level, int  method,
+                                  int windowBits, int memLevel,
+                                  int strategy, const char *version,
+                                  int stream_size);
+ZEXTERN int ZEXPORT inflateInit2_(z_streamp strm, int  windowBits,
+                                  const char *version, int stream_size);
+ZEXTERN int ZEXPORT inflateBackInit_(z_streamp strm, int windowBits,
+                                     unsigned char FAR *window,
+                                     const char *version,
+                                     int stream_size);
+#ifdef Z_PREFIX_SET
+#  define z_deflateInit(strm, level) \
+          deflateInit_((strm), (level), ZLIB_VERSION, (int)sizeof(z_stream))
+#  define z_inflateInit(strm) \
+          inflateInit_((strm), ZLIB_VERSION, (int)sizeof(z_stream))
+#  define z_deflateInit2(strm, level, method, windowBits, memLevel, strategy) \
+          deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\
+                        (strategy), ZLIB_VERSION, (int)sizeof(z_stream))
+#  define z_inflateInit2(strm, windowBits) \
+          inflateInit2_((strm), (windowBits), ZLIB_VERSION, \
+                        (int)sizeof(z_stream))
+#  define z_inflateBackInit(strm, windowBits, window) \
+          inflateBackInit_((strm), (windowBits), (window), \
+                           ZLIB_VERSION, (int)sizeof(z_stream))
+#else
+#  define deflateInit(strm, level) \
+          deflateInit_((strm), (level), ZLIB_VERSION, (int)sizeof(z_stream))
+#  define inflateInit(strm) \
+          inflateInit_((strm), ZLIB_VERSION, (int)sizeof(z_stream))
+#  define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \
+          deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\
+                        (strategy), ZLIB_VERSION, (int)sizeof(z_stream))
+#  define inflateInit2(strm, windowBits) \
+          inflateInit2_((strm), (windowBits), ZLIB_VERSION, \
+                        (int)sizeof(z_stream))
+#  define inflateBackInit(strm, windowBits, window) \
+          inflateBackInit_((strm), (windowBits), (window), \
+                           ZLIB_VERSION, (int)sizeof(z_stream))
+#endif
+
+#ifndef Z_SOLO
+
+/* gzgetc() macro and its supporting function and exposed data structure.  Note
+ * that the real internal state is much larger than the exposed structure.
+ * This abbreviated structure exposes just enough for the gzgetc() macro.  The
+ * user should not mess with these exposed elements, since their names or
+ * behavior could change in the future, perhaps even capriciously.  They can
+ * only be used by the gzgetc() macro.  You have been warned.
+ */
+struct gzFile_s {
+    unsigned have;
+    unsigned char *next;
+    z_off64_t pos;
+};
+ZEXTERN int ZEXPORT gzgetc_(gzFile file);       /* backward compatibility */
+#ifdef Z_PREFIX_SET
+#  undef z_gzgetc
+#  define z_gzgetc(g) \
+          ((g)->have ? ((g)->have--, (g)->pos++, *((g)->next)++) : (gzgetc)(g))
+#else
+#  define gzgetc(g) \
+          ((g)->have ? ((g)->have--, (g)->pos++, *((g)->next)++) : (gzgetc)(g))
+#endif
+
+/* provide 64-bit offset functions if _LARGEFILE64_SOURCE defined, and/or
+ * change the regular functions to 64 bits if _FILE_OFFSET_BITS is 64 (if
+ * both are true, the application gets the *64 functions, and the regular
+ * functions are changed to 64 bits) -- in case these are set on systems
+ * without large file support, _LFS64_LARGEFILE must also be true
+ */
+#ifdef Z_LARGE64
+   ZEXTERN gzFile ZEXPORT gzopen64(const char *, const char *);
+   ZEXTERN z_off64_t ZEXPORT gzseek64(gzFile, z_off64_t, int);
+   ZEXTERN z_off64_t ZEXPORT gztell64(gzFile);
+   ZEXTERN z_off64_t ZEXPORT gzoffset64(gzFile);
+   ZEXTERN uLong ZEXPORT adler32_combine64(uLong, uLong, z_off64_t);
+   ZEXTERN uLong ZEXPORT crc32_combine64(uLong, uLong, z_off64_t);
+   ZEXTERN uLong ZEXPORT crc32_combine_gen64(z_off64_t);
+#endif
+
+#if !defined(ZLIB_INTERNAL) && defined(Z_WANT64)
+#  ifdef Z_PREFIX_SET
+#    define z_gzopen z_gzopen64
+#    define z_gzseek z_gzseek64
+#    define z_gztell z_gztell64
+#    define z_gzoffset z_gzoffset64
+#    define z_adler32_combine z_adler32_combine64
+#    define z_crc32_combine z_crc32_combine64
+#    define z_crc32_combine_gen z_crc32_combine_gen64
+#  else
+#    define gzopen gzopen64
+#    define gzseek gzseek64
+#    define gztell gztell64
+#    define gzoffset gzoffset64
+#    define adler32_combine adler32_combine64
+#    define crc32_combine crc32_combine64
+#    define crc32_combine_gen crc32_combine_gen64
+#  endif
+#  ifndef Z_LARGE64
+     ZEXTERN gzFile ZEXPORT gzopen64(const char *, const char *);
+     ZEXTERN z_off_t ZEXPORT gzseek64(gzFile, z_off_t, int);
+     ZEXTERN z_off_t ZEXPORT gztell64(gzFile);
+     ZEXTERN z_off_t ZEXPORT gzoffset64(gzFile);
+     ZEXTERN uLong ZEXPORT adler32_combine64(uLong, uLong, z_off_t);
+     ZEXTERN uLong ZEXPORT crc32_combine64(uLong, uLong, z_off_t);
+     ZEXTERN uLong ZEXPORT crc32_combine_gen64(z_off_t);
+#  endif
+#else
+   ZEXTERN gzFile ZEXPORT gzopen(const char *, const char *);
+   ZEXTERN z_off_t ZEXPORT gzseek(gzFile, z_off_t, int);
+   ZEXTERN z_off_t ZEXPORT gztell(gzFile);
+   ZEXTERN z_off_t ZEXPORT gzoffset(gzFile);
+   ZEXTERN uLong ZEXPORT adler32_combine(uLong, uLong, z_off_t);
+   ZEXTERN uLong ZEXPORT crc32_combine(uLong, uLong, z_off_t);
+   ZEXTERN uLong ZEXPORT crc32_combine_gen(z_off_t);
+#endif
+
+#else /* Z_SOLO */
+
+   ZEXTERN uLong ZEXPORT adler32_combine(uLong, uLong, z_off_t);
+   ZEXTERN uLong ZEXPORT crc32_combine(uLong, uLong, z_off_t);
+   ZEXTERN uLong ZEXPORT crc32_combine_gen(z_off_t);
+
+#endif /* !Z_SOLO */
+
+/* undocumented functions */
+ZEXTERN const char   * ZEXPORT zError(int);
+ZEXTERN int            ZEXPORT inflateSyncPoint(z_streamp);
+ZEXTERN const z_crc_t FAR * ZEXPORT get_crc_table(void);
+ZEXTERN int            ZEXPORT inflateUndermine(z_streamp, int);
+ZEXTERN int            ZEXPORT inflateValidate(z_streamp, int);
+ZEXTERN unsigned long  ZEXPORT inflateCodesUsed(z_streamp);
+ZEXTERN int            ZEXPORT inflateResetKeep(z_streamp);
+ZEXTERN int            ZEXPORT deflateResetKeep(z_streamp);
+#if defined(_WIN32) && !defined(Z_SOLO)
+ZEXTERN gzFile         ZEXPORT gzopen_w(const wchar_t *path,
+                                        const char *mode);
+#endif
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#  ifndef Z_SOLO
+ZEXTERN int            ZEXPORTVA gzvprintf(gzFile file,
+                                           const char *format,
+                                           va_list va);
+#  endif
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ZLIB_H */
diff --git a/compat/zlib/zlib.map b/compat/zlib/zlib.map
new file mode 100644
index 0000000..31544f2
--- /dev/null
+++ b/compat/zlib/zlib.map
@@ -0,0 +1,100 @@
+ZLIB_1.2.0 {
+  global:
+    compressBound;
+    deflateBound;
+    inflateBack;
+    inflateBackEnd;
+    inflateBackInit_;
+    inflateCopy;
+  local:
+    deflate_copyright;
+    inflate_copyright;
+    inflate_fast;
+    inflate_table;
+    zcalloc;
+    zcfree;
+    z_errmsg;
+    gz_error;
+    gz_intmax;
+    _*;
+};
+
+ZLIB_1.2.0.2 {
+    gzclearerr;
+    gzungetc;
+    zlibCompileFlags;
+} ZLIB_1.2.0;
+
+ZLIB_1.2.0.8 {
+    deflatePrime;
+} ZLIB_1.2.0.2;
+
+ZLIB_1.2.2 {
+    adler32_combine;
+    crc32_combine;
+    deflateSetHeader;
+    inflateGetHeader;
+} ZLIB_1.2.0.8;
+
+ZLIB_1.2.2.3 {
+    deflateTune;
+    gzdirect;
+} ZLIB_1.2.2;
+
+ZLIB_1.2.2.4 {
+    inflatePrime;
+} ZLIB_1.2.2.3;
+
+ZLIB_1.2.3.3 {
+    adler32_combine64;
+    crc32_combine64;
+    gzopen64;
+    gzseek64;
+    gztell64;
+    inflateUndermine;
+} ZLIB_1.2.2.4;
+
+ZLIB_1.2.3.4 {
+    inflateReset2;
+    inflateMark;
+} ZLIB_1.2.3.3;
+
+ZLIB_1.2.3.5 {
+    gzbuffer;
+    gzoffset;
+    gzoffset64;
+    gzclose_r;
+    gzclose_w;
+} ZLIB_1.2.3.4;
+
+ZLIB_1.2.5.1 {
+    deflatePending;
+} ZLIB_1.2.3.5;
+
+ZLIB_1.2.5.2 {
+    deflateResetKeep;
+    gzgetc_;
+    inflateResetKeep;
+} ZLIB_1.2.5.1;
+
+ZLIB_1.2.7.1 {
+    inflateGetDictionary;
+    gzvprintf;
+} ZLIB_1.2.5.2;
+
+ZLIB_1.2.9 {
+    inflateCodesUsed;
+    inflateValidate;
+    uncompress2;
+    gzfread;
+    gzfwrite;
+    deflateGetDictionary;
+    adler32_z;
+    crc32_z;
+} ZLIB_1.2.7.1;
+
+ZLIB_1.2.12 {
+	crc32_combine_gen;
+	crc32_combine_gen64;
+	crc32_combine_op;
+} ZLIB_1.2.9;
diff --git a/compat/zlib/zlib.pc.cmakein b/compat/zlib/zlib.pc.cmakein
new file mode 100644
index 0000000..a5e6429
--- /dev/null
+++ b/compat/zlib/zlib.pc.cmakein
@@ -0,0 +1,13 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+exec_prefix=@CMAKE_INSTALL_PREFIX@
+libdir=@INSTALL_LIB_DIR@
+sharedlibdir=@INSTALL_LIB_DIR@
+includedir=@INSTALL_INC_DIR@
+
+Name: zlib
+Description: zlib compression library
+Version: @VERSION@
+
+Requires:
+Libs: -L${libdir} -L${sharedlibdir} -lz
+Cflags: -I${includedir}
diff --git a/compat/zlib/zlib.pc.in b/compat/zlib/zlib.pc.in
new file mode 100644
index 0000000..7e5acf9
--- /dev/null
+++ b/compat/zlib/zlib.pc.in
@@ -0,0 +1,13 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+sharedlibdir=@sharedlibdir@
+includedir=@includedir@
+
+Name: zlib
+Description: zlib compression library
+Version: @VERSION@
+
+Requires:
+Libs: -L${libdir} -L${sharedlibdir} -lz
+Cflags: -I${includedir}
diff --git a/compat/zlib/zutil.c b/compat/zlib/zutil.c
new file mode 100644
index 0000000..b1c5d2d
--- /dev/null
+++ b/compat/zlib/zutil.c
@@ -0,0 +1,299 @@
+/* zutil.c -- target dependent utility functions for the compression library
+ * Copyright (C) 1995-2017 Jean-loup Gailly
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#include "zutil.h"
+#ifndef Z_SOLO
+#  include "gzguts.h"
+#endif
+
+z_const char * const z_errmsg[10] = {
+    (z_const char *)"need dictionary",     /* Z_NEED_DICT       2  */
+    (z_const char *)"stream end",          /* Z_STREAM_END      1  */
+    (z_const char *)"",                    /* Z_OK              0  */
+    (z_const char *)"file error",          /* Z_ERRNO         (-1) */
+    (z_const char *)"stream error",        /* Z_STREAM_ERROR  (-2) */
+    (z_const char *)"data error",          /* Z_DATA_ERROR    (-3) */
+    (z_const char *)"insufficient memory", /* Z_MEM_ERROR     (-4) */
+    (z_const char *)"buffer error",        /* Z_BUF_ERROR     (-5) */
+    (z_const char *)"incompatible version",/* Z_VERSION_ERROR (-6) */
+    (z_const char *)""
+};
+
+
+const char * ZEXPORT zlibVersion(void) {
+    return ZLIB_VERSION;
+}
+
+uLong ZEXPORT zlibCompileFlags(void) {
+    uLong flags;
+
+    flags = 0;
+    switch ((int)(sizeof(uInt))) {
+    case 2:     break;
+    case 4:     flags += 1;     break;
+    case 8:     flags += 2;     break;
+    default:    flags += 3;
+    }
+    switch ((int)(sizeof(uLong))) {
+    case 2:     break;
+    case 4:     flags += 1 << 2;        break;
+    case 8:     flags += 2 << 2;        break;
+    default:    flags += 3 << 2;
+    }
+    switch ((int)(sizeof(voidpf))) {
+    case 2:     break;
+    case 4:     flags += 1 << 4;        break;
+    case 8:     flags += 2 << 4;        break;
+    default:    flags += 3 << 4;
+    }
+    switch ((int)(sizeof(z_off_t))) {
+    case 2:     break;
+    case 4:     flags += 1 << 6;        break;
+    case 8:     flags += 2 << 6;        break;
+    default:    flags += 3 << 6;
+    }
+#ifdef ZLIB_DEBUG
+    flags += 1 << 8;
+#endif
+    /*
+#if defined(ASMV) || defined(ASMINF)
+    flags += 1 << 9;
+#endif
+     */
+#ifdef ZLIB_WINAPI
+    flags += 1 << 10;
+#endif
+#ifdef BUILDFIXED
+    flags += 1 << 12;
+#endif
+#ifdef DYNAMIC_CRC_TABLE
+    flags += 1 << 13;
+#endif
+#ifdef NO_GZCOMPRESS
+    flags += 1L << 16;
+#endif
+#ifdef NO_GZIP
+    flags += 1L << 17;
+#endif
+#ifdef PKZIP_BUG_WORKAROUND
+    flags += 1L << 20;
+#endif
+#ifdef FASTEST
+    flags += 1L << 21;
+#endif
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#  ifdef NO_vsnprintf
+    flags += 1L << 25;
+#    ifdef HAS_vsprintf_void
+    flags += 1L << 26;
+#    endif
+#  else
+#    ifdef HAS_vsnprintf_void
+    flags += 1L << 26;
+#    endif
+#  endif
+#else
+    flags += 1L << 24;
+#  ifdef NO_snprintf
+    flags += 1L << 25;
+#    ifdef HAS_sprintf_void
+    flags += 1L << 26;
+#    endif
+#  else
+#    ifdef HAS_snprintf_void
+    flags += 1L << 26;
+#    endif
+#  endif
+#endif
+    return flags;
+}
+
+#ifdef ZLIB_DEBUG
+#include <stdlib.h>
+#  ifndef verbose
+#    define verbose 0
+#  endif
+int ZLIB_INTERNAL z_verbose = verbose;
+
+void ZLIB_INTERNAL z_error(char *m) {
+    fprintf(stderr, "%s\n", m);
+    exit(1);
+}
+#endif
+
+/* exported to allow conversion of error code to string for compress() and
+ * uncompress()
+ */
+const char * ZEXPORT zError(int err) {
+    return ERR_MSG(err);
+}
+
+#if defined(_WIN32_WCE) && _WIN32_WCE < 0x800
+    /* The older Microsoft C Run-Time Library for Windows CE doesn't have
+     * errno.  We define it as a global variable to simplify porting.
+     * Its value is always 0 and should not be used.
+     */
+    int errno = 0;
+#endif
+
+#ifndef HAVE_MEMCPY
+
+void ZLIB_INTERNAL zmemcpy(Bytef* dest, const Bytef* source, uInt len) {
+    if (len == 0) return;
+    do {
+        *dest++ = *source++; /* ??? to be unrolled */
+    } while (--len != 0);
+}
+
+int ZLIB_INTERNAL zmemcmp(const Bytef* s1, const Bytef* s2, uInt len) {
+    uInt j;
+
+    for (j = 0; j < len; j++) {
+        if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1;
+    }
+    return 0;
+}
+
+void ZLIB_INTERNAL zmemzero(Bytef* dest, uInt len) {
+    if (len == 0) return;
+    do {
+        *dest++ = 0;  /* ??? to be unrolled */
+    } while (--len != 0);
+}
+#endif
+
+#ifndef Z_SOLO
+
+#ifdef SYS16BIT
+
+#ifdef __TURBOC__
+/* Turbo C in 16-bit mode */
+
+#  define MY_ZCALLOC
+
+/* Turbo C malloc() does not allow dynamic allocation of 64K bytes
+ * and farmalloc(64K) returns a pointer with an offset of 8, so we
+ * must fix the pointer. Warning: the pointer must be put back to its
+ * original form in order to free it, use zcfree().
+ */
+
+#define MAX_PTR 10
+/* 10*64K = 640K */
+
+local int next_ptr = 0;
+
+typedef struct ptr_table_s {
+    voidpf org_ptr;
+    voidpf new_ptr;
+} ptr_table;
+
+local ptr_table table[MAX_PTR];
+/* This table is used to remember the original form of pointers
+ * to large buffers (64K). Such pointers are normalized with a zero offset.
+ * Since MSDOS is not a preemptive multitasking OS, this table is not
+ * protected from concurrent access. This hack doesn't work anyway on
+ * a protected system like OS/2. Use Microsoft C instead.
+ */
+
+voidpf ZLIB_INTERNAL zcalloc(voidpf opaque, unsigned items, unsigned size) {
+    voidpf buf;
+    ulg bsize = (ulg)items*size;
+
+    (void)opaque;
+
+    /* If we allocate less than 65520 bytes, we assume that farmalloc
+     * will return a usable pointer which doesn't have to be normalized.
+     */
+    if (bsize < 65520L) {
+        buf = farmalloc(bsize);
+        if (*(ush*)&buf != 0) return buf;
+    } else {
+        buf = farmalloc(bsize + 16L);
+    }
+    if (buf == NULL || next_ptr >= MAX_PTR) return NULL;
+    table[next_ptr].org_ptr = buf;
+
+    /* Normalize the pointer to seg:0 */
+    *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4;
+    *(ush*)&buf = 0;
+    table[next_ptr++].new_ptr = buf;
+    return buf;
+}
+
+void ZLIB_INTERNAL zcfree(voidpf opaque, voidpf ptr) {
+    int n;
+
+    (void)opaque;
+
+    if (*(ush*)&ptr != 0) { /* object < 64K */
+        farfree(ptr);
+        return;
+    }
+    /* Find the original pointer */
+    for (n = 0; n < next_ptr; n++) {
+        if (ptr != table[n].new_ptr) continue;
+
+        farfree(table[n].org_ptr);
+        while (++n < next_ptr) {
+            table[n-1] = table[n];
+        }
+        next_ptr--;
+        return;
+    }
+    Assert(0, "zcfree: ptr not found");
+}
+
+#endif /* __TURBOC__ */
+
+
+#ifdef M_I86
+/* Microsoft C in 16-bit mode */
+
+#  define MY_ZCALLOC
+
+#if (!defined(_MSC_VER) || (_MSC_VER <= 600))
+#  define _halloc  halloc
+#  define _hfree   hfree
+#endif
+
+voidpf ZLIB_INTERNAL zcalloc(voidpf opaque, uInt items, uInt size) {
+    (void)opaque;
+    return _halloc((long)items, size);
+}
+
+void ZLIB_INTERNAL zcfree(voidpf opaque, voidpf ptr) {
+    (void)opaque;
+    _hfree(ptr);
+}
+
+#endif /* M_I86 */
+
+#endif /* SYS16BIT */
+
+
+#ifndef MY_ZCALLOC /* Any system without a special alloc function */
+
+#ifndef STDC
+extern voidp malloc(uInt size);
+extern voidp calloc(uInt items, uInt size);
+extern void free(voidpf ptr);
+#endif
+
+voidpf ZLIB_INTERNAL zcalloc(voidpf opaque, unsigned items, unsigned size) {
+    (void)opaque;
+    return sizeof(uInt) > 2 ? (voidpf)malloc(items * size) :
+                              (voidpf)calloc(items, size);
+}
+
+void ZLIB_INTERNAL zcfree(voidpf opaque, voidpf ptr) {
+    (void)opaque;
+    free(ptr);
+}
+
+#endif /* MY_ZCALLOC */
+
+#endif /* !Z_SOLO */
diff --git a/compat/zlib/zutil.h b/compat/zlib/zutil.h
new file mode 100644
index 0000000..48dd7fe
--- /dev/null
+++ b/compat/zlib/zutil.h
@@ -0,0 +1,254 @@
+/* zutil.h -- internal interface and configuration of the compression library
+ * Copyright (C) 1995-2024 Jean-loup Gailly, Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+   part of the implementation of the compression library and is
+   subject to change. Applications should only use zlib.h.
+ */
+
+/* @(#) $Id$ */
+
+#ifndef ZUTIL_H
+#define ZUTIL_H
+
+#ifdef HAVE_HIDDEN
+#  define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
+#else
+#  define ZLIB_INTERNAL
+#endif
+
+#include "zlib.h"
+
+#if defined(STDC) && !defined(Z_SOLO)
+#  if !(defined(_WIN32_WCE) && defined(_MSC_VER))
+#    include <stddef.h>
+#  endif
+#  include <string.h>
+#  include <stdlib.h>
+#endif
+
+#ifndef local
+#  define local static
+#endif
+/* since "static" is used to mean two completely different things in C, we
+   define "local" for the non-static meaning of "static", for readability
+   (compile with -Dlocal if your debugger can't find static symbols) */
+
+typedef unsigned char  uch;
+typedef uch FAR uchf;
+typedef unsigned short ush;
+typedef ush FAR ushf;
+typedef unsigned long  ulg;
+
+#if !defined(Z_U8) && !defined(Z_SOLO) && defined(STDC)
+#  include <limits.h>
+#  if (ULONG_MAX == 0xffffffffffffffff)
+#    define Z_U8 unsigned long
+#  elif (ULLONG_MAX == 0xffffffffffffffff)
+#    define Z_U8 unsigned long long
+#  elif (UINT_MAX == 0xffffffffffffffff)
+#    define Z_U8 unsigned
+#  endif
+#endif
+
+extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
+/* (size given to avoid silly warnings with Visual C++) */
+
+#define ERR_MSG(err) z_errmsg[(err) < -6 || (err) > 2 ? 9 : 2 - (err)]
+
+#define ERR_RETURN(strm,err) \
+  return (strm->msg = ERR_MSG(err), (err))
+/* To be used only when the state is known to be valid */
+
+        /* common constants */
+
+#ifndef DEF_WBITS
+#  define DEF_WBITS MAX_WBITS
+#endif
+/* default windowBits for decompression. MAX_WBITS is for compression only */
+
+#if MAX_MEM_LEVEL >= 8
+#  define DEF_MEM_LEVEL 8
+#else
+#  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
+#endif
+/* default memLevel */
+
+#define STORED_BLOCK 0
+#define STATIC_TREES 1
+#define DYN_TREES    2
+/* The three kinds of block type */
+
+#define MIN_MATCH  3
+#define MAX_MATCH  258
+/* The minimum and maximum match lengths */
+
+#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
+
+        /* target dependencies */
+
+#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
+#  define OS_CODE  0x00
+#  ifndef Z_SOLO
+#    if defined(__TURBOC__) || defined(__BORLANDC__)
+#      if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
+         /* Allow compilation with ANSI keywords only enabled */
+         void _Cdecl farfree( void *block );
+         void *_Cdecl farmalloc( unsigned long nbytes );
+#      else
+#        include <alloc.h>
+#      endif
+#    else /* MSC or DJGPP */
+#      include <malloc.h>
+#    endif
+#  endif
+#endif
+
+#ifdef AMIGA
+#  define OS_CODE  1
+#endif
+
+#if defined(VAXC) || defined(VMS)
+#  define OS_CODE  2
+#  define F_OPEN(name, mode) \
+     fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
+#endif
+
+#ifdef __370__
+#  if __TARGET_LIB__ < 0x20000000
+#    define OS_CODE 4
+#  elif __TARGET_LIB__ < 0x40000000
+#    define OS_CODE 11
+#  else
+#    define OS_CODE 8
+#  endif
+#endif
+
+#if defined(ATARI) || defined(atarist)
+#  define OS_CODE  5
+#endif
+
+#ifdef OS2
+#  define OS_CODE  6
+#  if defined(M_I86) && !defined(Z_SOLO)
+#    include <malloc.h>
+#  endif
+#endif
+
+#if defined(MACOS)
+#  define OS_CODE  7
+#endif
+
+#ifdef __acorn
+#  define OS_CODE 13
+#endif
+
+#if defined(WIN32) && !defined(__CYGWIN__)
+#  define OS_CODE  10
+#endif
+
+#ifdef _BEOS_
+#  define OS_CODE  16
+#endif
+
+#ifdef __TOS_OS400__
+#  define OS_CODE 18
+#endif
+
+#ifdef __APPLE__
+#  define OS_CODE 19
+#endif
+
+#if defined(__BORLANDC__) && !defined(MSDOS)
+  #pragma warn -8004
+  #pragma warn -8008
+  #pragma warn -8066
+#endif
+
+/* provide prototypes for these when building zlib without LFS */
+#if !defined(_WIN32) && \
+    (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0)
+    ZEXTERN uLong ZEXPORT adler32_combine64(uLong, uLong, z_off_t);
+    ZEXTERN uLong ZEXPORT crc32_combine64(uLong, uLong, z_off_t);
+    ZEXTERN uLong ZEXPORT crc32_combine_gen64(z_off_t);
+#endif
+
+        /* common defaults */
+
+#ifndef OS_CODE
+#  define OS_CODE  3     /* assume Unix */
+#endif
+
+#ifndef F_OPEN
+#  define F_OPEN(name, mode) fopen((name), (mode))
+#endif
+
+         /* functions */
+
+#if defined(pyr) || defined(Z_SOLO)
+#  define NO_MEMCPY
+#endif
+#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
+ /* Use our own functions for small and medium model with MSC <= 5.0.
+  * You may have to use the same strategy for Borland C (untested).
+  * The __SC__ check is for Symantec.
+  */
+#  define NO_MEMCPY
+#endif
+#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
+#  define HAVE_MEMCPY
+#endif
+#ifdef HAVE_MEMCPY
+#  ifdef SMALL_MEDIUM /* MSDOS small or medium model */
+#    define zmemcpy _fmemcpy
+#    define zmemcmp _fmemcmp
+#    define zmemzero(dest, len) _fmemset(dest, 0, len)
+#  else
+#    define zmemcpy memcpy
+#    define zmemcmp memcmp
+#    define zmemzero(dest, len) memset(dest, 0, len)
+#  endif
+#else
+   void ZLIB_INTERNAL zmemcpy(Bytef* dest, const Bytef* source, uInt len);
+   int ZLIB_INTERNAL zmemcmp(const Bytef* s1, const Bytef* s2, uInt len);
+   void ZLIB_INTERNAL zmemzero(Bytef* dest, uInt len);
+#endif
+
+/* Diagnostic functions */
+#ifdef ZLIB_DEBUG
+#  include <stdio.h>
+   extern int ZLIB_INTERNAL z_verbose;
+   extern void ZLIB_INTERNAL z_error(char *m);
+#  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
+#  define Trace(x) {if (z_verbose>=0) fprintf x ;}
+#  define Tracev(x) {if (z_verbose>0) fprintf x ;}
+#  define Tracevv(x) {if (z_verbose>1) fprintf x ;}
+#  define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
+#  define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
+#else
+#  define Assert(cond,msg)
+#  define Trace(x)
+#  define Tracev(x)
+#  define Tracevv(x)
+#  define Tracec(c,x)
+#  define Tracecv(c,x)
+#endif
+
+#ifndef Z_SOLO
+   voidpf ZLIB_INTERNAL zcalloc(voidpf opaque, unsigned items,
+                                unsigned size);
+   void ZLIB_INTERNAL zcfree(voidpf opaque, voidpf ptr);
+#endif
+
+#define ZALLOC(strm, items, size) \
+           (*((strm)->zalloc))((strm)->opaque, (items), (size))
+#define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
+#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
+
+/* Reverse the bytes in a 32-bit value */
+#define ZSWAP32(q) ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \
+                    (((q) & 0xff00) << 8) + (((q) & 0xff) << 24))
+
+#endif /* ZUTIL_H */
diff --git a/doc/Access.3 b/doc/Access.3
index b77e5fa..aaca223 100644
--- a/doc/Access.3
+++ b/doc/Access.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_Access 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -18,57 +18,55 @@ int
 .sp
 int
 \fBTcl_Stat\fR(\fIpath\fR, \fIstatPtr\fR)
+.fi
 .SH ARGUMENTS
 .AS "struct stat" *statPtr out
-.AP char *path in
+.AP "const char" *path in
 Native name of the file to check the attributes of.
 .AP int mode in
-Mask consisting of one or more of R_OK, W_OK, X_OK and F_OK.  R_OK,
-W_OK and X_OK request checking whether the file exists and  has  read,
-write and  execute  permissions, respectively.  F_OK just requests
-checking for the existence of the file.
+Mask consisting of one or more of \fBR_OK\fR, \fBW_OK\fR, \fBX_OK\fR and
+\fBF_OK\fR. \fBR_OK\fR, \fBW_OK\fR and \fBX_OK\fR request checking whether the
+file exists and has read, write and execute permissions, respectively.
+\fBF_OK\fR just requests a check for the existence of the file.
 .AP "struct stat" *statPtr out
 The structure that contains the result.
 .BE
-
 .SH DESCRIPTION
 .PP
-As of Tcl 8.4, the object-based APIs \fBTcl_FSAccess\fR and
-\fBTcl_FSStat\fR should be used in preference to \fBTcl_Access\fR and
-\fBTcl_Stat\fR, wherever possible.
+The object-based APIs \fBTcl_FSAccess\fR and \fBTcl_FSStat\fR
+should be used in preference to \fBTcl_Access\fR and \fBTcl_Stat\fR, wherever
+possible. Those functions also support Tcl's virtual filesystem layer, which
+these do not.
+.SS "OBSOLETE FUNCTIONS"
 .PP
-There are two reasons for calling \fBTcl_Access\fR and \fBTcl_Stat\fR
-rather than calling system level functions \fBaccess\fR and \fBstat\fR
-directly.  First, the Windows implementation of both functions fixes
-some bugs in the system level calls.  Second, both \fBTcl_Access\fR
-and \fBTcl_Stat\fR (as well as \fBTcl_OpenFileChannelProc\fR) hook
-into a linked list of functions.  This allows the possibility to reroute
-file access to alternative media or access methods.
+There are two reasons for calling \fBTcl_Access\fR and \fBTcl_Stat\fR rather
+than calling system level functions \fBaccess\fR and \fBstat\fR directly.
+First, the Windows implementation of both functions fixes some bugs in the
+system level calls. Second, both \fBTcl_Access\fR and \fBTcl_Stat\fR (as well
+as \fBTcl_OpenFileChannelProc\fR) hook into a linked list of functions. This
+allows the possibility to reroute file access to alternative media or access
+methods.
 .PP
-\fBTcl_Access\fR checks whether the process would be allowed to read,
-write or test for existence of the file (or other file system object)
-whose name is pathname.   If pathname is a symbolic link on Unix,
-then permissions of the file referred by this symbolic link are
-tested.
+\fBTcl_Access\fR checks whether the process would be allowed to read, write or
+test for existence of the file (or other file system object) whose name is
+\fIpath\fR. If \fIpath\fR is a symbolic link on Unix, then permissions of the
+file referred by this symbolic link are tested.
 .PP
-On success (all requested permissions granted), zero is returned.  On
-error (at least one bit in mode asked for a permission that is denied,
-or some other  error occurred), -1 is returned.
+On success (all requested permissions granted), zero is returned. On error (at
+least one bit in mode asked for a permission that is denied, or some other
+error occurred), -1 is returned.
 .PP
-\fBTcl_Stat\fR fills the stat structure \fIstatPtr\fR with information
-about the specified file.  You do not need any access rights to the
-file to get this information but you need search rights to all
-directories named in the path leading to the file.  The stat structure
-includes info regarding device, inode (always 0 on Windows),
-privilege mode, nlink (always 1 on Windows), user id (always 0 on
-Windows), group id (always 0 on Windows), rdev (same as device on
-Windows), size, last access time, last modification time, and creation
-time.
+\fBTcl_Stat\fR fills the stat structure \fIstatPtr\fR with information about
+the specified file. You do not need any access rights to the file to get this
+information but you need search rights to all directories named in the path
+leading to the file. The stat structure includes info regarding device, inode
+(always 0 on Windows), privilege mode, nlink (always 1 on Windows), user id
+(always 0 on Windows), group id (always 0 on Windows), rdev (same as device on
+Windows), size, last access time, last modification time, and creation time.
 .PP
-If \fIpath\fR exists, \fBTcl_Stat\fR returns 0 and the stat structure
-is filled with data.  Otherwise, -1 is returned, and no stat info is
-given.
-
+If \fIpath\fR exists, \fBTcl_Stat\fR returns 0 and the stat structure is
+filled with data. Otherwise, -1 is returned, and no stat info is given.
 .SH KEYWORDS
 stat, access
-
+.SH "SEE ALSO"
+Tcl_FSAccess(3), Tcl_FSStat(3)
diff --git a/doc/AddErrInfo.3 b/doc/AddErrInfo.3
index 577b6c7..2ed5eee 100644
--- a/doc/AddErrInfo.3
+++ b/doc/AddErrInfo.3
@@ -4,52 +4,51 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_AddErrorInfo 3 8.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_GetReturnOptions, Tcl_SetReturnOptions, Tcl_AddErrorInfo, Tcl_AppendObjToErrorInfo, Tcl_AddObjErrorInfo, Tcl_SetObjErrorCode, Tcl_SetErrorCode, Tcl_SetErrorCodeVA, Tcl_PosixError, Tcl_LogCommandInfo \- retrieve or record information about errors and other return options
+Tcl_GetReturnOptions, Tcl_SetReturnOptions, Tcl_AddErrorInfo, Tcl_AppendObjToErrorInfo, Tcl_AddObjErrorInfo, Tcl_SetObjErrorCode, Tcl_SetErrorCode, Tcl_SetErrorLine, Tcl_GetErrorLine, Tcl_PosixError, Tcl_LogCommandInfo \- retrieve or record information about errors and other return options
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
-.VS 8.5
-.sp
+
 Tcl_Obj *
 \fBTcl_GetReturnOptions\fR(\fIinterp, code\fR)
 .sp
-int 
+int
 \fBTcl_SetReturnOptions\fR(\fIinterp, options\fR)
-.VE 8.5
 .sp
 \fBTcl_AddErrorInfo\fR(\fIinterp, message\fR)
-.VS 8.5
 .sp
 \fBTcl_AppendObjToErrorInfo\fR(\fIinterp, objPtr\fR)
-.VE 8.5
 .sp
 \fBTcl_AddObjErrorInfo\fR(\fIinterp, message, length\fR)
 .sp
 \fBTcl_SetObjErrorCode\fR(\fIinterp, errorObjPtr\fR)
 .sp
-\fBTcl_SetErrorCode\fR(\fIinterp, element, element, ... \fB(char *) NULL\fR)
+\fBTcl_SetErrorCode\fR(\fIinterp, element, element, ... \fB(char *)NULL\fR)
+.sp
+int
+\fBTcl_GetErrorLine\fR(\fIinterp\fR)
 .sp
-\fBTcl_SetErrorCodeVA\fR(\fIinterp, argList\fR)
+\fBTcl_SetErrorLine\fR(\fIinterp, lineNum\fR)
 .sp
 const char *
 \fBTcl_PosixError\fR(\fIinterp\fR)
 .sp
-void
 \fBTcl_LogCommandInfo\fR(\fIinterp, script, command, commandLength\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp commandLength
 .AP Tcl_Interp *interp in
 Interpreter in which to record information.
-.AP int code 
+.AP int code
 The code returned from script evaluation.
 .AP Tcl_Obj *options
 A dictionary of return options.
-.AP char *message in
+.AP "const char" *message in
 For \fBTcl_AddErrorInfo\fR,
 this is a conventional C string to append to the \fB\-errorinfo\fR return option.
 For \fBTcl_AddObjErrorInfo\fR,
@@ -57,34 +56,32 @@ this points to the first byte of an array of \fIlength\fR bytes
 containing a string to append to the \fB\-errorinfo\fR return option.
 This byte array may contain embedded null bytes
 unless \fIlength\fR is negative.
-.VS 8.5
 .AP Tcl_Obj *objPtr in
 A message to be appended to the \fB\-errorinfo\fR return option
 in the form of a Tcl_Obj value.
-.VE 8.5
-.AP int length in
+.AP Tcl_Size length in
 The number of bytes to copy from \fImessage\fR when
 appending to the \fB\-errorinfo\fR return option.
 If negative, all bytes up to the first null byte are used.
 .AP Tcl_Obj *errorObjPtr in
 The \fB\-errorcode\fR return option will be set to this value.
-.AP char *element in
+.AP "const char" *element in
 String to record as one element of the \fB\-errorcode\fR return option.
-Last \fIelement\fR argument must be NULL.
-.AP va_list argList in
-An argument list which must have been initialized using
-\fBva_start\fR, and cleared using \fBva_end\fR.
+Last \fIelement\fR argument must be (char *)NULL.
+.AP int lineNum
+The line number of a script where an error occurred.
 .AP "const char" *script in
-Pointer to first character in script containing command (must be <= command)
+Pointer to first character in script containing command
+(must be <= \fIcommand\fR).
 .AP "const char" *command in
-Pointer to first character in command that generated the error
-.AP int commandLength in
-Number of bytes in command; -1 means use all bytes up to first null byte
+Pointer to first character in the command that generated the error; must
+point within the string given by \fIscript\fR.
+.AP Tcl_Size commandLength in
+Number of bytes in command; a negative value means use all bytes up to the
+first null byte.
 .BE
-
 .SH DESCRIPTION
 .PP
-.VS 8.5
 The \fBTcl_SetReturnOptions\fR and \fBTcl_GetReturnOptions\fR
 routines expose the same capabilities as the \fBreturn\fR and
 \fBcatch\fR commands, respectively, in the form of a C interface.
@@ -109,21 +106,28 @@ with the value of \fIcode\fR.  The \fB(Tcl_Obj *)\fR returned
 by \fBTcl_GetReturnOptions\fR points to an unshared
 \fBTcl_Obj\fR with reference count of zero.  The dictionary
 may be written to, either adding, removing, or overwriting
-any entries in it, without the need to check for a shared object.
+any entries in it, without the need to check for a shared value.
+As with any \fBTcl_Obj\fR with reference count of zero, it is up to
+the caller to arrange for its disposal with \fBTcl_DecrRefCount\fR or
+to a reference to it via \fBTcl_IncrRefCount\fR (or one of the many
+functions that call that, notably including \fBTcl_SetObjResult\fR and
+\fBTcl_SetVar2Ex\fR).
 .PP
 A typical usage for \fBTcl_GetReturnOptions\fR is to
 retrieve the stack trace when script evaluation returns
 \fBTCL_ERROR\fR, like so:
+.PP
 .CS
-int code = Tcl_Eval(interp, script);
+int code = Tcl_EvalEx(interp, script, -1, 0);
 if (code == TCL_ERROR) {
-    Tcl_Obj *options = Tcl_GetReturnOptions(interp, code);  
+    Tcl_Obj *options = \fBTcl_GetReturnOptions\fR(interp, code);
     Tcl_Obj *key = Tcl_NewStringObj("-errorinfo", -1);
     Tcl_Obj *stackTrace;
     Tcl_IncrRefCount(key);
     Tcl_DictObjGet(NULL, options, key, &stackTrace);
     Tcl_DecrRefCount(key);
     /* Do something with stackTrace */
+    Tcl_DecrRefCount(options);
 }
 .CE
 .PP
@@ -138,13 +142,15 @@ keys in \fIoptions\fR will be returned.
 As an example, Tcl's \fBreturn\fR command itself could
 be implemented in terms of \fBTcl_SetReturnOptions\fR
 like so:
+.PP
 .CS
 if ((objc % 2) == 0) { /* explicit result argument */
     objc--;
     Tcl_SetObjResult(interp, objv[objc]);
 }
-return Tcl_SetReturnOptions(interp, Tcl_NewListObj(objc-1, objv+1));
+return \fBTcl_SetReturnOptions\fR(interp, Tcl_NewListObj(objc-1, objv+1));
 .CE
+.PP
 (It is not really implemented that way.  Internal access
 privileges allow for a more efficient alternative that meshes
 better with the bytecode compiler.)
@@ -156,26 +162,29 @@ to any reference counting.  This is analogous to
 .PP
 While \fBTcl_SetReturnOptions\fR provides a general interface
 to set any collection of return options, there are a handful
-of return options that are very frequently used.  Most 
+of return options that are very frequently used.  Most
 notably the \fB\-errorinfo\fR and \fB\-errorcode\fR return
 options should be set properly when the command procedure
-of a command returns \fBTCL_ERROR\fR.  Tcl provides several
-simpler interfaces to more directly set these return options.
-.VE 8.5
+of a command returns \fBTCL_ERROR\fR.  The \fB\-errorline\fR
+return option is also read by commands that evaluate scripts
+and wish to supply detailed error location information in
+the stack trace text they append to the \fB\-errorinfo\fR option.
+Tcl provides several simpler interfaces to more directly set
+these return options.
 .PP
 The \fB\-errorinfo\fR option holds a stack trace of the
 operations that were in progress when an error occurred,
 and is intended to be human-readable.
-The \fB\-errorcode\fR option holds a list of items that
+The \fB\-errorcode\fR option holds a Tcl list of items that
 are intended to be machine-readable.
 The first item in the \fB\-errorcode\fR value identifies the class of
 error that occurred
-(e.g. POSIX means an error occurred in a POSIX system call)
+(e.g., POSIX means an error occurred in a POSIX system call)
 and additional elements hold additional pieces
 of information that depend on the class.
-See the tclvars manual entry for details on the various
-formats for the \fB\-errorcode\fR option used by
-Tcl's built-in commands.
+See the manual entry on the \fBerrorCode\fR variable for details on the
+various formats for the \fB\-errorcode\fR option used by Tcl's built-in
+commands.
 .PP
 The \fB\-errorinfo\fR option value is gradually built up as an
 error unwinds through the nested operations.
@@ -207,16 +216,14 @@ The value of the \fB\-errorline\fR return option (retrieved
 via a call to \fBTcl_GetReturnOptions\fR) often makes up
 a useful part of the \fImessage\fR passed to \fBTcl_AddErrorInfo\fR.
 .PP
-.VS 8.5
 \fBTcl_AppendObjToErrorInfo\fR is an alternative interface to the
 same functionality as \fBTcl_AddErrorInfo\fR.  \fBTcl_AppendObjToErrorInfo\fR
 is called when the string value to be appended to the \fB\-errorinfo\fR option
 is available as a \fBTcl_Obj\fR instead of as a \fBchar\fR array.
-.VE 8.5
 .PP
 \fBTcl_AddObjErrorInfo\fR is nearly identical
 to \fBTcl_AddErrorInfo\fR, except that it has an additional \fIlength\fR
-argument.  This allows the \fImessage\fR string to contain 
+argument.  This allows the \fImessage\fR string to contain
 embedded null bytes.  This is essentially never a good idea.
 If the \fImessage\fR needs to contain the null character \fBU+0000\fR,
 Tcl's usual internal encoding rules should be used to avoid
@@ -224,9 +231,9 @@ the need for a null byte.  If the \fBTcl_AddObjErrorInfo\fR
 interface is used at all, it should be with a negative \fIlength\fR value.
 .PP
 The procedure \fBTcl_SetObjErrorCode\fR is used to set the
-\fB\-errorcode\fR return option to the list object \fIerrorObjPtr\fR 
-built up by the caller. 
-\fBTcl_SetObjErrorCode\fR is typically invoked just 
+\fB\-errorcode\fR return option to the list value \fIerrorObjPtr\fR
+built up by the caller.
+\fBTcl_SetObjErrorCode\fR is typically invoked just
 before returning an error. If an error is
 returned without calling \fBTcl_SetObjErrorCode\fR or
 \fBTcl_SetErrorCode\fR the Tcl interpreter automatically sets
@@ -234,11 +241,13 @@ the \fB\-errorcode\fR return option to \fBNONE\fR.
 .PP
 The procedure \fBTcl_SetErrorCode\fR is also used to set the
 \fB\-errorcode\fR return option. However, it takes one or more strings to
-record instead of an object. Otherwise, it is similar to
+record instead of a value. Otherwise, it is similar to
 \fBTcl_SetObjErrorCode\fR in behavior.
 .PP
-\fBTcl_SetErrorCodeVA\fR is the same as \fBTcl_SetErrorCode\fR except that
-instead of taking a variable number of arguments it takes an argument list.
+The procedure \fBTcl_GetErrorLine\fR is used to read the integer value
+of the \fB\-errorline\fR return option without the overhead of a full
+call to \fBTcl_GetReturnOptions\fR.  Likewise, \fBTcl_SetErrorLine\fR
+sets the \fB\-errorline\fR return option value.
 .PP
 \fBTcl_PosixError\fR
 sets the \fB\-errorcode\fR variable after an error in a POSIX kernel call.
@@ -262,7 +271,7 @@ the interpreter's result.
 \fBTcl_LogCommandInfo\fR is invoked after an error occurs in an
 interpreter.  It adds information about the command that was being
 executed when the error occurred to the \fB\-errorinfo\fR value, and
-the line number stored internally in the interpreter is set.  
+the line number stored internally in the interpreter is set.
 .PP
 In older releases of Tcl, there was no \fBTcl_GetReturnOptions\fR
 routine.  In its place, the global Tcl variables \fBerrorInfo\fR
@@ -275,7 +284,7 @@ global variables remains a supported way to access these
 return option values, it is important not to assume that
 writing to those global variables will properly set the
 corresponding return options.  It has long been emphasized
-in this manual page that it is important to 
+in this manual page that it is important to
 call the procedures described here rather than
 setting \fBerrorInfo\fR or \fBerrorCode\fR directly with
 \fBTcl_ObjSetVar2\fR.
@@ -284,7 +293,7 @@ If the procedure \fBTcl_ResetResult\fR is called,
 it clears all of the state of the interpreter associated with
 script evaluation, including the entire return options dictionary.
 In particular, the \fB\-errorinfo\fR and \fB\-errorcode\fR options
-are reset.  
+are reset.
 If an error had occurred, the \fBTcl_ResetResult\fR call will
 clear the error state to make it appear as if no error had
 occurred after all.
@@ -292,9 +301,24 @@ The global variables \fBerrorInfo\fR and
 \fBerrorCode\fR are not modified by \fBTcl_ResetResult\fR
 so they continue to hold a record of information about the
 most recent error seen in an interpreter.
-
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+The result of \fBTcl_GetReturnOptions\fR will have at least one
+reference to it from the Tcl interpreter. If not using it immediately,
+you should use \fBTcl_IncrRefCount\fR to add your own reference.
+.PP
+The \fIoptions\fR argument to \fBTcl_SetReturnOptions\fR will have a
+reference added by the Tcl interpreter; it may safely be called with a
+zero-reference value.
+.PP
+\fBTcl_AppendObjToErrorInfo\fR only reads its \fIobjPtr\fR argument;
+it does not modify its reference count at all.
+.PP
+The \fIerrorObjPtr\fR argument to \fBTcl_SetObjErrorCode\fR will have a
+reference added by the Tcl interpreter; it may safely be called with a
+zero-reference value.
 .SH "SEE ALSO"
-Tcl_DecrRefCount, Tcl_IncrRefCount, Tcl_Interp, Tcl_ResetResult, Tcl_SetErrno
-
+Tcl_DecrRefCount(3), Tcl_IncrRefCount(3), Tcl_Interp(3), Tcl_ResetResult(3),
+Tcl_SetErrno(3), errorCode(n), errorInfo(n)
 .SH KEYWORDS
-error, object, object result, stack, trace, variable
+error, value, value result, stack, trace, variable
diff --git a/doc/Alloc.3 b/doc/Alloc.3
index 70b0f7d..999c1e8 100644
--- a/doc/Alloc.3
+++ b/doc/Alloc.3
@@ -4,52 +4,36 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.TH Tcl_Alloc 3 7.5 Tcl "Tcl Library Procedures"
+.TH Tcl_Alloc 3 9.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_Alloc, Tcl_Free, Tcl_Realloc, Tcl_AttemptAlloc, Tcl_AttemptRealloc, Tcl_GetMemoryInfo, ckalloc, ckfree, ckrealloc, attemptckalloc, attemptckrealloc \- allocate or free heap memory
+Tcl_Alloc, Tcl_Free, Tcl_Realloc, Tcl_AttemptAlloc, Tcl_AttemptRealloc, Tcl_GetMemoryInfo \- allocate or free heap memory
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
 .sp
-char *
+void *
 \fBTcl_Alloc\fR(\fIsize\fR)
 .sp
-void
 \fBTcl_Free\fR(\fIptr\fR)
 .sp
-char *
+void *
 \fBTcl_Realloc\fR(\fIptr, size\fR)
 .sp
-char *
+void *
 \fBTcl_AttemptAlloc\fR(\fIsize\fR)
 .sp
-char *
+void *
 \fBTcl_AttemptRealloc\fR(\fIptr, size\fR)
 .sp
-void
 \fBTcl_GetMemoryInfo\fR(\fIdsPtr\fR)
-.sp
-char *
-\fBckalloc\fR(\fIsize\fR)
-.sp
-void
-\fBckfree\fR(\fIptr\fR)
-.sp
-char *
-\fBckrealloc\fR(\fIptr, size\fR)
-.sp
-char *
-\fBattemptckalloc\fR(\fIsize\fR)
-.sp
-char *
-\fBattemptckrealloc\fR(\fIptr, size\fR)
+.fi
 .SH ARGUMENTS
 .AS char *size
-.AP "unsigned int" size in
+.AP "size_t" size in
 Size in bytes of the memory block to allocate.
-.AP char *ptr in
+.AP void *ptr in
 Pointer to memory block to free or realloc.
 .AP Tcl_DString *dsPtr in
 Initialized DString pointer.
@@ -84,18 +68,17 @@ allocation fails, these functions will return NULL.  Note that on some
 platforms, but not all, attempting to allocate a zero-sized block of
 memory will also cause these functions to return NULL.
 .PP
-The procedures \fBckalloc\fR, \fBckfree\fR, \fBckrealloc\fR,
-\fBattemptckalloc\fR, and \fBattemptckrealloc\fR are implemented
-as macros.  Normally, they are synonyms for the corresponding
-procedures documented on this page.  When Tcl and all modules
-calling Tcl are compiled with \fBTCL_MEM_DEBUG\fR defined, however,
-these macros are redefined to be special debugging versions
-of these procedures.  To support Tcl's memory debugging within a
-module, use the macros rather than direct calls to \fBTcl_Alloc\fR, etc.
-
+When a module or Tcl itself is compiled with \fBTCL_MEM_DEBUG\fR defined,
+the procedures \fBTcl_Alloc\fR, \fBTcl_Free\fR, \fBTcl_Realloc\fR,
+\fBTcl_AttemptAlloc\fR, and \fBTcl_AttempRealloc\fR are implemented
+as macros, redefined to be special debugging versions of these procedures.
+.PP
 \fBTcl_GetMemoryInfo\fR appends a list-of-lists of memory stats to the
 provided DString. This function cannot be used in stub-enabled extensions,
-and it is only available if Tcl is compiled with the threaded memory allocator.
+and it is only available if Tcl is compiled with the threaded memory allocator
+When used in stub-enabled embedders, the stubs table must be first initialized
+using one of \fBTcl_InitSubsystems\fR, \fBTcl_SetPanicProc\fR,
+\fBTcl_FindExecutable\fR or \fBTclZipfs_AppHook\fR.
 
 .SH KEYWORDS
 alloc, allocation, free, malloc, memory, realloc, TCL_MEM_DEBUG
diff --git a/doc/AllowExc.3 b/doc/AllowExc.3
index 2343e66..a5e9aa2 100644
--- a/doc/AllowExc.3
+++ b/doc/AllowExc.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_AllowExceptions 3 7.4 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -15,6 +15,7 @@ Tcl_AllowExceptions \- allow all exceptions in next script evaluation
 \fB#include <tcl.h>\fR
 .sp
 \fBTcl_AllowExceptions\fR(\fIinterp\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp *interp
 .AP Tcl_Interp *interp in
@@ -30,8 +31,7 @@ or \fBTCL_RETURN\fR, then Tcl normally converts this into a \fBTCL_ERROR\fR
 return with an appropriate message.  The particular script
 evaluation procedures of Tcl that act in the manner are
 \fBTcl_EvalObjEx\fR, \fBTcl_EvalObjv\fR, \fBTcl_Eval\fR, \fBTcl_EvalEx\fR,
-\fBTcl_GlobalEval\fR, \fBTcl_GlobalEvalObj\fR, \fBTcl_VarEval\fR and
-\fBTcl_VarEvalVA\fR. 
+\fBTcl_GlobalEval\fR, \fBTcl_GlobalEvalObj\fR and \fBTcl_VarEval\fR.
 .PP
 However, if \fBTcl_AllowExceptions\fR is invoked immediately before
 calling one of those a procedures, then arbitrary completion
diff --git a/doc/AppInit.3 b/doc/AppInit.3
index 6a329e2..e61d188 100644
--- a/doc/AppInit.3
+++ b/doc/AppInit.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_AppInit 3 7.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -16,6 +16,7 @@ Tcl_AppInit \- perform application-specific initialization
 .sp
 int
 \fBTcl_AppInit\fR(\fIinterp\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp *interp
 .AP Tcl_Interp *interp in
@@ -48,6 +49,11 @@ Process command-line arguments, which can be accessed from the
 Tcl variables \fBargv\fR and \fBargv0\fR in \fIinterp\fR.
 .IP [3]
 Invoke a startup script to initialize the application.
+.IP [4]
+Use the routines \fBTcl_SetStartupScript\fR and
+\fBTcl_GetStartupScript\fR to set or query the file and encoding
+that the active \fBTcl_Main\fR or \fBTk_Main\fR routine will
+use as a startup script.
 .LP
 \fBTcl_AppInit\fR returns \fBTCL_OK\fR or \fBTCL_ERROR\fR.
 If it returns \fBTCL_ERROR\fR then it must leave an error message in
@@ -55,9 +61,11 @@ for the interpreter's result;  otherwise the result is ignored.
 .PP
 In addition to \fBTcl_AppInit\fR, your application should also contain
 a procedure \fBmain\fR that calls \fBTcl_Main\fR as follows:
+.PP
 .CS
 Tcl_Main(argc, argv, Tcl_AppInit);
 .CE
+.PP
 The third argument to \fBTcl_Main\fR gives the address of the
 application-specific initialization procedure to invoke.
 This means that you do not have to use the name \fBTcl_AppInit\fR
@@ -69,5 +77,8 @@ The best way to get started is to make a copy of the file
 It already contains a \fBmain\fR procedure and a template for
 \fBTcl_AppInit\fR that you can modify for your application.
 
+.SH "SEE ALSO"
+Tcl_Main(3)
+
 .SH KEYWORDS
 application, argument, command, initialization, interpreter
diff --git a/doc/AssocData.3 b/doc/AssocData.3
index c402057..c1ca24c 100644
--- a/doc/AssocData.3
+++ b/doc/AssocData.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_SetAssocData 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -13,12 +13,13 @@ Tcl_GetAssocData, Tcl_SetAssocData, Tcl_DeleteAssocData \- manage associations o
 .nf
 \fB#include <tcl.h>\fR
 .sp
-ClientData
+void *
 \fBTcl_GetAssocData\fR(\fIinterp, key, delProcPtr\fR)
 .sp
 \fBTcl_SetAssocData\fR(\fIinterp, key, delProc, clientData\fR)
 .sp
 \fBTcl_DeleteAssocData\fR(\fIinterp, key\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_InterpDeleteProc **delProcPtr
 .AP Tcl_Interp *interp in
@@ -31,7 +32,7 @@ Procedure to call when \fIinterp\fR is deleted.
 .AP Tcl_InterpDeleteProc **delProcPtr in
 Pointer to location in which to store address of current deletion procedure
 for association.  Ignored if NULL.
-.AP ClientData clientData in
+.AP void *clientData in
 Arbitrary one-word value associated with the given key in this
 interpreter.  This data is owned by the caller.
 .BE
@@ -61,11 +62,13 @@ If the \fIdeleteProc\fR argument is non-NULL it specifies the address of a
 procedure to invoke if the interpreter is deleted before the association
 is deleted.  \fIDeleteProc\fR should have arguments and result that match
 the type \fBTcl_InterpDeleteProc\fR:
+.PP
 .CS
-typedef void Tcl_InterpDeleteProc(
-        ClientData \fIclientData\fR,
+typedef void \fBTcl_InterpDeleteProc\fR(
+        void *\fIclientData\fR,
         Tcl_Interp *\fIinterp\fR);
 .CE
+.PP
 When \fIdeleteProc\fR is invoked the \fIclientData\fR and \fIinterp\fR
 arguments will be the same as the corresponding arguments passed to
 \fBTcl_SetAssocData\fR.
diff --git a/doc/Async.3 b/doc/Async.3
index d7a5147..493c000 100644
--- a/doc/Async.3
+++ b/doc/Async.3
@@ -4,12 +4,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_AsyncCreate 3 7.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_AsyncCreate, Tcl_AsyncMark, Tcl_AsyncInvoke, Tcl_AsyncDelete, Tcl_AsyncReady \- handle asynchronous events
+Tcl_AsyncCreate, Tcl_AsyncMark, Tcl_AsyncMarkFromSignal, Tcl_AsyncInvoke, Tcl_AsyncDelete, Tcl_AsyncReady \- handle asynchronous events
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -17,23 +17,31 @@ Tcl_AsyncCreate, Tcl_AsyncMark, Tcl_AsyncInvoke, Tcl_AsyncDelete, Tcl_AsyncReady
 Tcl_AsyncHandler
 \fBTcl_AsyncCreate\fR(\fIproc, clientData\fR)
 .sp
+void
 \fBTcl_AsyncMark\fR(\fIasync\fR)
 .sp
 int
+\fBTcl_AsyncMarkFromSignal\fR(\fIasync\fR, \fIsigNumber\fR)
+.sp
+int
 \fBTcl_AsyncInvoke\fR(\fIinterp, code\fR)
 .sp
+void
 \fBTcl_AsyncDelete\fR(\fIasync\fR)
 .sp
 int
 \fBTcl_AsyncReady\fR()
+.fi
 .SH ARGUMENTS
 .AS Tcl_AsyncHandler clientData
 .AP Tcl_AsyncProc *proc in
 Procedure to invoke to handle an asynchronous event.
-.AP ClientData clientData in
+.AP void *clientData in
 One-word value to pass to \fIproc\fR.
 .AP Tcl_AsyncHandler async in
 Token for asynchronous event handler.
+.AP int sigNumber in
+POSIX signal number, when used in a signal context.
 .AP Tcl_Interp *interp in
 Tcl interpreter in which command was being evaluated when handler was
 invoked, or NULL if handler was invoked when there was no interpreter
@@ -60,10 +68,11 @@ to a clean state, such as after the current Tcl command completes.
 .PP
 \fBTcl_AsyncCreate\fR, \fBTcl_AsyncDelete\fR, and \fBTcl_AsyncReady\fR
 are thread sensitive.  They access and/or set a thread-specific data
-structure in the event of a core built with \fI\-\-enable\-threads\fR.  The token
-created by \fBTcl_AsyncCreate\fR contains the needed thread information it
-was called from so that calling \fBTcl_AsyncMark\fR(\fItoken\fR) will only yield
-the origin thread into the asynchronous handler.
+structure in the event of a core built with \fI\-\-enable\-threads\fR.
+The token created by \fBTcl_AsyncCreate\fR contains the needed thread
+information it was called from so that calling \fBTcl_AsyncMarkFromSignal\fR
+or \fBTcl_AsyncMark\fR with this token will only yield the origin
+thread into the asynchronous handler.
 .PP
 \fBTcl_AsyncCreate\fR creates an asynchronous handler and returns
 a token for it.
@@ -72,21 +81,26 @@ any occurrences of the asynchronous event that it is intended
 to handle (it is not safe to create a handler at the time of
 an event).
 When an asynchronous event occurs the code that detects the event
-(such as a signal handler) should call \fBTcl_AsyncMark\fR with the
-token for the handler.
-\fBTcl_AsyncMark\fR will mark the handler as ready to execute, but it
-will not invoke the handler immediately.
-Tcl will call the \fIproc\fR associated with the handler later, when
-the world is in a safe state, and \fIproc\fR can then carry out
-the actions associated with the asynchronous event.
+(such as a POSIX signal handler) should call \fBTcl_AsyncMarkFromSignal\fR
+with the token for the handler and the POSIX signal number. The
+return value of this function is true, when the handler will be
+marked, false otherwise.
+For non-signal contexts, \fBTcl_AsyncMark\fR serves the same purpose.
+\fBTcl_AsyncMarkFromSignal\fR and \fBTcl_AsyncMark\fR will mark
+the handler as ready to execute, but will not invoke the handler
+immediately. Tcl will call the \fIproc\fR associated with the
+handler later, when the world is in a safe state, and \fIproc\fR
+can then carry out the actions associated with the asynchronous event.
 \fIProc\fR should have arguments and result that match the
 type \fBTcl_AsyncProc\fR:
+.PP
 .CS
-typedef int Tcl_AsyncProc(
-        ClientData \fIclientData\fR,
+typedef int \fBTcl_AsyncProc\fR(
+        void *\fIclientData\fR,
         Tcl_Interp *\fIinterp\fR,
         int \fIcode\fR);
 .CE
+.PP
 The \fIclientData\fR will be the same as the \fIclientData\fR
 argument passed to \fBTcl_AsyncCreate\fR when the handler was
 created.
diff --git a/doc/BackgdErr.3 b/doc/BackgdErr.3
index 4291167..4340e4d 100644
--- a/doc/BackgdErr.3
+++ b/doc/BackgdErr.3
@@ -4,58 +4,76 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_BackgroundError 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_BackgroundError \- report Tcl error that occurred in background processing
+Tcl_BackgroundException, Tcl_BackgroundError \- report Tcl exception that occurred in background processing
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
 .sp
+\fBTcl_BackgroundException\fR(\fIinterp, code\fR)
+.sp
 \fBTcl_BackgroundError\fR(\fIinterp\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp *interp
 .AP Tcl_Interp *interp in
-Interpreter in which the error occurred.
+Interpreter in which the exception occurred.
+.AP int code in
+The exceptional return code to be reported.
 .BE
 
 .SH DESCRIPTION
 .PP
-This procedure is typically invoked when a Tcl error occurs during
+This procedure is typically invoked when a Tcl exception (any
+return code other than TCL_OK) occurs during
 .QW "background processing"
 such as executing an event handler.
-When such an error occurs, the error condition is reported to Tcl
+When such an exception occurs, the condition is reported to Tcl
 or to a widget or some other C code, and there is not usually any
-obvious way for that code to report the error to the user.
-In these cases the code calls \fBTcl_BackgroundError\fR with an
+obvious way for that code to report the exception to the user.
+In these cases the code calls \fBTcl_BackgroundException\fR with an
 \fIinterp\fR argument identifying the interpreter in which the
-error occurred.  At the time \fBTcl_BackgroundError\fR is invoked,
-the interpreter's result is expected to contain an error message.
-\fBTcl_BackgroundError\fR will invoke the command registered
+exception occurred, and a \fIcode\fR argument holding the return
+code value of the exception.  The state of the interpreter, including
+any error message in the interpreter result, and the values of
+any entries in the return options dictionary, is captured and
+saved.  \fBTcl_BackgroundException\fR then arranges for the event
+loop to invoke at some later time the command registered
 in that interpreter to handle background errors by the
-\fBinterp bgerror\fR command.
-The registered handler command is meant to report the error
+\fBinterp bgerror\fR command, passing the captured values as
+arguments.
+The registered handler command is meant to report the exception
 in an application-specific fashion.  The handler command
 receives two arguments, the result of the interp, and the
 return options of the interp at the time the error occurred.
 If the application registers no handler command, the default
 handler command will attempt to call \fBbgerror\fR to report
 the error.  If an error condition arises while invoking the
-handler command, then \fBTcl_BackgroundError\fR reports the
+handler command, then \fBTcl_BackgroundException\fR reports the
 error itself by printing a message on the standard error file.
 .PP
-\fBTcl_BackgroundError\fR does not invoke the handler command immediately
+\fBTcl_BackgroundException\fR does not invoke the handler command immediately
 because this could potentially interfere with scripts that are in process
 at the time the error occurred.
 Instead, it invokes the handler command later as an idle callback.
 .PP
-It is possible for many background errors to accumulate before
-the handler command is invoked.  When this happens, each of the errors
-is processed in order.  However, if the handle command returns a
+It is possible for many background exceptions to accumulate before
+the handler command is invoked.  When this happens, each of the exceptions
+is processed in order.  However, if the handler command returns a
 break exception, then all remaining error reports for the
 interpreter are skipped.
+.PP
+The \fBTcl_BackgroundError\fR routine is an older and simpler interface
+useful when the exception code reported is \fBTCL_ERROR\fR.  It is
+equivalent to:
+.PP
+.CS
+Tcl_BackgroundException(interp, TCL_ERROR);
+.CE
 
 .SH KEYWORDS
 background, bgerror, error, interp
diff --git a/doc/Backslash.3 b/doc/Backslash.3
deleted file mode 100644
index f121c7c..0000000
--- a/doc/Backslash.3
+++ /dev/null
@@ -1,47 +0,0 @@
-'\"
-'\" Copyright (c) 1989-1993 The Regents of the University of California.
-'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
-'\"
-'\" See the file "license.terms" for information on usage and redistribution
-'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-.TH Tcl_Backslash 3 "8.1" Tcl "Tcl Library Procedures"
-.so man.macros
-.BS
-.SH NAME
-Tcl_Backslash \- parse a backslash sequence
-.SH SYNOPSIS
-.nf
-\fB#include <tcl.h>\fR
-.sp
-char
-\fBTcl_Backslash\fR(\fIsrc, countPtr\fR)
-.SH ARGUMENTS
-.AS char *countPtr out
-.AP char *src in
-Pointer to a string starting with a backslash.
-.AP int *countPtr out
-If \fIcountPtr\fR is not NULL, \fI*countPtr\fR gets filled
-in with number of characters in the backslash sequence, including
-the backslash character.
-.BE
-
-.SH DESCRIPTION
-.PP
-The use of \fBTcl_Backslash\fR is deprecated in favor of
-\fBTcl_UtfBackslash\fR.
-.PP
-This is a utility procedure provided for backwards compatibility with
-non-internationalized Tcl extensions.  It parses a backslash sequence and
-returns the low byte of the Unicode character corresponding to the sequence. 
-\fBTcl_Backslash\fR modifies \fI*countPtr\fR to contain the number of
-characters in the backslash sequence.
-.PP
-See the Tcl manual entry for information on the valid backslash sequences.
-All of the sequences described in the Tcl manual entry are supported by
-\fBTcl_Backslash\fR.
-.SH "SEE ALSO"
-Tcl(n), Tcl_UtfBackslash(3)
-
-.SH KEYWORDS
-backslash, parse
diff --git a/doc/BoolObj.3 b/doc/BoolObj.3
index f10ae88..de2a66b 100644
--- a/doc/BoolObj.3
+++ b/doc/BoolObj.3
@@ -4,64 +4,75 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_BooleanObj 3 8.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_NewBooleanObj, Tcl_SetBooleanObj, Tcl_GetBooleanFromObj \- store/retrieve boolean value in a Tcl_Obj
+Tcl_NewBooleanObj, Tcl_SetBooleanObj, Tcl_GetBooleanFromObj, Tcl_GetBoolFromObj \- store/retrieve boolean value in a Tcl_Obj
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
 .sp
 Tcl_Obj *
-\fBTcl_NewBooleanObj\fR(\fIboolValue\fR)
+\fBTcl_NewBooleanObj\fR(\fIintValue\fR)
 .sp
-\fBTcl_SetBooleanObj\fR(\fIobjPtr, boolValue\fR)
+\fBTcl_SetBooleanObj\fR(\fIobjPtr, intValue\fR)
 .sp
 int
 \fBTcl_GetBooleanFromObj\fR(\fIinterp, objPtr, boolPtr\fR)
+.sp
+int
+\fBTcl_GetBoolFromObj\fR(\fIinterp, objPtr, flags. charPtr\fR)
+.fi
 .SH ARGUMENTS
-.AS Tcl_Interp boolValue in/out
-.AP int boolValue in
+.AS Tcl_Interp intValue in/out
+.AP int intValue in
 Integer value to be stored as a boolean value in a Tcl_Obj.
 .AP Tcl_Obj *objPtr in/out
 Points to the Tcl_Obj in which to store, or from which to
 retrieve a boolean value.
 .AP Tcl_Interp *interp in/out
 If a boolean value cannot be retrieved,
-an error message is left in the interpreter's result object
+an error message is left in the interpreter's result value
 unless \fIinterp\fR is NULL.
-.AP int *boolPtr out
+.AP "bool \&| int" *boolPtr out
 Points to place where \fBTcl_GetBooleanFromObj\fR
 stores the boolean value (0 or 1) obtained from \fIobjPtr\fR.
+.AP char *charPtr out
+Points to place where \fBTcl_GetBoolFromObj\fR
+stores the boolean value (0 or 1) obtained from \fIobjPtr\fR.
+.AP int flags in
+0 or TCL_NULL_OK. If TCL_NULL_OK
+is used, then the empty string or NULL will result in \fBTcl_GetBoolFromObj\fR
+return TCL_OK, the *charPtr filled with the value \fB'\exFF'\fR;
 .BE
 
 .SH DESCRIPTION
 .PP
 These procedures are used to pass boolean values to and from
 Tcl as Tcl_Obj's.  When storing a boolean value into a Tcl_Obj,
-any non-zero integer value in \fIboolValue\fR is taken to be
+any non-zero integer value in \fIintValue\fR is taken to be
 the boolean value \fB1\fR, and the integer value \fB0\fR is
 taken to be the boolean value \fB0\fR.
 .PP
 \fBTcl_NewBooleanObj\fR creates a new Tcl_Obj, stores the boolean
-value \fIboolValue\fR in it, and returns a pointer to the new Tcl_Obj.
+value \fIintValue\fR in it, and returns a pointer to the new Tcl_Obj.
 The new Tcl_Obj has reference count of zero.
 .PP
 \fBTcl_SetBooleanObj\fR accepts \fIobjPtr\fR, a pointer to
-an existing Tcl_Obj, and stores in the Tcl_Obj \fI*objPtr\fR 
-the boolean value \fIboolValue\fR.  This is a write operation
+an existing Tcl_Obj, and stores in the Tcl_Obj \fI*objPtr\fR
+the boolean value \fIintValue\fR.  This is a write operation
 on \fI*objPtr\fR, so \fIobjPtr\fR must be unshared.  Attempts to
 write to a shared Tcl_Obj will panic.  A successful write
-of \fIboolValue\fR into \fI*objPtr\fR implies the freeing of
+of \fIintValue\fR into \fI*objPtr\fR implies the freeing of
 any former value stored in \fI*objPtr\fR.
 .PP
 \fBTcl_GetBooleanFromObj\fR attempts to retrieve a boolean value
 from the value stored in \fI*objPtr\fR.
 If \fIobjPtr\fR holds a string value recognized by \fBTcl_GetBoolean\fR,
 then the recognized boolean value is written at the address given
-by \fIboolPtr\fR.  
+by \fIboolPtr\fR.
 If \fIobjPtr\fR holds any value recognized as
 a number by Tcl, then if that value is zero a 0 is written at
 the address given by \fIboolPtr\fR and if that
@@ -69,13 +80,18 @@ value is non-zero a 1 is written at the address given by \fIboolPtr\fR.
 In all cases where a value is written at the address given
 by \fIboolPtr\fR, \fBTcl_GetBooleanFromObj\fR returns \fBTCL_OK\fR.
 If the value of \fIobjPtr\fR does not meet any of the conditions
-above, then \fBTCL_ERROR\fR is returned and an error message is 
+above, then \fBTCL_ERROR\fR is returned and an error message is
 left in the interpreter's result unless \fIinterp\fR is NULL.
 \fBTcl_GetBooleanFromObj\fR may also make changes to the internal
-fields of \fI*objPtr\fR so that future calls to 
+fields of \fI*objPtr\fR so that future calls to
 \fBTcl_GetBooleanFromObj\fR on the same \fIobjPtr\fR can be
 performed more efficiently.
 .PP
+\fBTcl_GetBoolFromObj\fR functions almost the same as
+\fBTcl_GetBooleanFromObj\fR, but it has an additional parameter
+\fBflags\fR, which can be used to specify whether the empty
+string or NULL is accepted as valid.
+.PP
 Note that the routines \fBTcl_GetBooleanFromObj\fR and
 \fBTcl_GetBoolean\fR are not functional equivalents.
 The set of values for which \fBTcl_GetBooleanFromObj\fR
@@ -88,8 +104,20 @@ will lead to a \fBTCL_OK\fR return (and the boolean value 1),
 while the same value passed to \fBTcl_GetBoolean\fR will lead to
 a \fBTCL_ERROR\fR return.
 
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+\fBTcl_NewBooleanObj\fR always returns a zero-reference object, much
+like \fBTcl_NewObj\fR.
+.PP
+\fBTcl_SetBooleanObj\fR does not modify the reference count of its
+\fIobjPtr\fR argument, but does require that the object be unshared.
+.PP
+\fBTcl_GetBooleanFromObj\fR does not modify the reference count of its
+\fIobjPtr\fR argument; it only reads. Note however that this function
+may set the interpreter result; if that is the only place that
+is holding a reference to the object, it will be deleted.
 .SH "SEE ALSO"
 Tcl_NewObj, Tcl_IsShared, Tcl_GetBoolean
 
 .SH KEYWORDS
-boolean, object
+boolean, value
diff --git a/doc/ByteArrObj.3 b/doc/ByteArrObj.3
index c031d53..6306591 100644
--- a/doc/ByteArrObj.3
+++ b/doc/ByteArrObj.3
@@ -3,87 +3,177 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-.TH Tcl_ByteArrayObj 3 8.1 Tcl "Tcl Library Procedures"
+'\"
+.TH Tcl_ByteArrayObj 3 9.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_NewByteArrayObj, Tcl_SetByteArrayObj, Tcl_GetByteArrayFromObj, Tcl_SetByteArrayLength \- manipulate Tcl objects as a arrays of bytes 
+Tcl_NewByteArrayObj, Tcl_SetByteArrayObj, Tcl_GetBytesFromObj, Tcl_GetByteArrayFromObj, Tcl_SetByteArrayLength \- manipulate a Tcl value as an array of bytes
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
 .sp
 Tcl_Obj *
-\fBTcl_NewByteArrayObj\fR(\fIbytes, length\fR)
+\fBTcl_NewByteArrayObj\fR(\fIbytes, numBytes\fR)
+.sp
+\fBTcl_SetByteArrayObj\fR(\fIobjPtr, bytes, numBytes\fR)
 .sp
-void 
-\fBTcl_SetByteArrayObj\fR(\fIobjPtr, bytes, length\fR)
+.VS TIP568
+unsigned char *
+\fBTcl_GetBytesFromObj\fR(\fIinterp, objPtr, numBytesPtr\fR)
+.VE TIP568
 .sp
 unsigned char *
-\fBTcl_GetByteArrayFromObj\fR(\fIobjPtr, lengthPtr\fR)
+\fBTcl_GetByteArrayFromObj\fR(\fIobjPtr, numBytesPtr\fR)
 .sp
 unsigned char *
-\fBTcl_SetByteArrayLength\fR(\fIobjPtr, length\fR)
+\fBTcl_SetByteArrayLength\fR(\fIobjPtr, numBytes\fR)
+.fi
 .SH ARGUMENTS
-.AS "const unsigned char" *lengthPtr in/out
+.AS "const unsigned char" *numBytesPtr in/out
 .AP "const unsigned char" *bytes in
-The array of bytes used to initialize or set a byte-array object.
-.AP int length in
-The length of the array of bytes.  It must be >= 0.
+The array of bytes used to initialize or set a byte-array value. May be NULL
+even if \fInumBytes\fR is non-zero.
+.AP Tcl_Size numBytes in
+The number of bytes in the array.
 .AP Tcl_Obj *objPtr in/out
-For \fBTcl_SetByteArrayObj\fR, this points to the object to be converted to
-byte-array type.  For \fBTcl_GetByteArrayFromObj\fR and
-\fBTcl_SetByteArrayLength\fR, this points to the object from which to get
-the byte-array value; if \fIobjPtr\fR does not already point to a byte-array
-object, it will be converted to one.
-.AP int *lengthPtr out
-If non-NULL, filled with the length of the array of bytes in the object.
+For \fBTcl_SetByteArrayObj\fR, this points to an unshared value to be
+overwritten by a byte-array value.  For \fBTcl_GetBytesFromObj\fR,
+\fBTcl_GetByteArrayFromObj\fR and \fBTcl_SetByteArrayLength\fR, this points
+to the value from which to extract an array of bytes.
+.AP Tcl_Interp *interp in
+Interpreter to use for error reporting.
+.AP "Tcl_Size \&| int" *numBytesPtr out
+Points to space where the number of bytes in the array may be written.
+May be (Tcl_Size *)NULL when not used. If it points to a variable which
+type is not \fBTcl_Size\fR, a compiler warning will be generated.
+If your extensions is compiled with -DTCL_8_API, this function will return
+NULL for byte arrays larger than INT_MAX (which should
+trigger proper error-handling), otherwise expect it to crash.
 .BE
-
 .SH DESCRIPTION
 .PP
-These procedures are used to create, modify, and read Tcl byte-array objects
-from C code.  Byte-array objects are typically used to hold the
-results of binary IO operations or data structures created with the
-\fBbinary\fR command.  In Tcl, an array of bytes is not equivalent to a
-string.  Conceptually, a string is an array of Unicode characters, while a
-byte-array is an array of 8-bit quantities with no implicit meaning.
-Accessor functions are provided to get the string representation of a
-byte-array or to convert an arbitrary object to a byte-array.  Obtaining the
-string representation of a byte-array object (by calling
-\fBTcl_GetStringFromObj\fR) produces a properly formed UTF-8 sequence with a
-one-to-one mapping between the bytes in the internal representation and the
-UTF-8 characters in the string representation.  
+These routines are used to create, modify, store, transfer, and retrieve
+arbitrary binary data in Tcl values.  Specifically, data that can be
+represented as a sequence of arbitrary byte values is supported.
+This includes data read from binary channels, values created by the
+\fBbinary\fR command, encrypted data, or other information representable as
+a finite byte sequence.
+.PP
+A byte is an 8-bit quantity with no inherent meaning.  When the 8 bits are
+interpreted as an integer value, the range of possible values is (0-255).
+The C type best suited to store a byte is the \fBunsigned char\fR.
+An \fBunsigned char\fR array of size \fIN\fR stores an arbitrary binary
+value of size \fIN\fR bytes.  We call this representation a byte-array.
+Here we document the routines that allow us to operate on Tcl values as
+byte-arrays.
+.PP
+All Tcl values must correspond to a string representation.
+When a byte-array value must be processed as a string, the sequence
+of \fIN\fR bytes is transformed into the corresponding sequence
+of \fIN\fR characters, where each byte value transforms to the same
+character codepoint value in the range (U+0000 - U+00FF).  Obtaining the
+string representation of a byte-array value (by calling
+\fBTcl_GetStringFromObj\fR) produces this string in Tcl's usual
+Modified UTF-8 encoding.
+.PP
+\fBTcl_NewByteArrayObj\fR and \fBTcl_SetByteArrayObj\fR
+create a new value or overwrite an existing unshared value, respectively,
+to hold a byte-array value of \fInumBytes\fR bytes.  When a caller
+passes a non-NULL value of \fIbytes\fR, it must point to memory from
+which \fInumBytes\fR bytes can be read.  These routines
+allocate \fInumBytes\fR bytes of memory, copy \fInumBytes\fR
+bytes from \fIbytes\fR into it, and keep the result in the internal
+representation of the new or overwritten value.
+When the caller passes a NULL value of \fIbytes\fR, the data copying
+step is skipped, and the bytes stored in the value are undefined.
+A \fIbytes\fR value of NULL is useful only when the caller will arrange
+to write known contents into the byte-array through a pointer retrieved
+by a call to one of the routines explained below.  \fBTcl_NewByteArrayObj\fR
+returns a pointer to the created value with a reference count of zero.
+\fBTcl_SetByteArrayObj\fR overwrites and invalidates any old contents
+of the unshared \fIobjPtr\fR as appropriate, and keeps its reference
+count (0 or 1) unchanged.  The value produced by these routines has no
+string representation.  Any memory allocation failure may cause a panic.
+.PP
+\fBTcl_GetBytesFromObj\fR performs the opposite function of
+\fBTcl_SetByteArrayObj\fR, providing access to read a byte-array from
+a Tcl value that was previously written into it.  When \fIobjPtr\fR
+is a value previously produced by \fBTcl_NewByteArrayObj\fR or
+\fBTcl_SetByteArrayObj\fR, then \fBTcl_GetBytesFromObj\fR returns
+a pointer to the byte-array kept in the value's internal representation.
+If the caller provides a non-NULL value for \fInumBytesPtr\fR, it must
+point to memory where \fBTcl_GetBytesFromObj\fR can write the number
+of bytes in the value's internal byte-array.  With both pieces of
+information, the caller is able to retrieve any information about the
+contents of that byte-array that it seeks.  When \fIobjPtr\fR does
+not already contain an internal byte-array, \fBTcl_GetBytesFromObj\fR
+will try to create one from the value's string representation.  Any
+string value that does not include any character codepoints outside
+the range (U+0000 - U+00FF) will successfully translate to a unique
+byte-array value.  With the created byte-array, the routine returns
+as before.  For any string representation which does contain
+a forbidden character codepoint, the conversion fails, and
+\fBTcl_GetBytesFromObj\fR returns NULL to signal that failure.  On
+failure, nothing will be written to \fInumBytesPtr\fR, and if
+the \fIinterp\fR argument is non-NULL, then error messages and
+codes are left in it recording the error.
+.PP
+\fBTcl_GetByteArrayFromObj\fR performs exactly the same function as
+\fBTcl_GetBytesFromObj\fR does when called with the \fIinterp\fR
+argument passed the value NULL.  This is incompatible with the
+way \fBTcl_GetByteArrayFromObj\fR functioned in Tcl 8.
+\fBTcl_GetBytesFromObj\fR is the more capable interface and should
+usually be favored for use over \fBTcl_GetByteArrayFromObj\fR.
+.PP
+On success, both \fBTcl_GetBytesFromObj\fR and \fBTcl_GetByteArrayFromObj\fR
+return a pointer into the internal representation of a \fBTcl_Obj\fR.
+That pointer must not be freed by the caller, and should not be retained
+for use beyond the known time the internal representation of the value
+has not been disturbed.  The pointer may be used to overwrite the byte
+contents of the internal representation, so long as the value is unshared
+and any string representation is invalidated.
+.PP
+On success, both \fBTcl_GetBytesFromObj\fR and \fBTcl_GetByteArrayFromObj\fR
+write the number of bytes in the byte-array value of \fIobjPtr\fR
+to the space pointed to by \fInumBytesPtr\fR.  This space may be of type
+\fBTcl_Size\fR or of type \fBint\fR.  It is recommended that callers provide
+a \fBTcl_Size\fR space for this purpose.  If the caller provides only
+an \fBint\fR space and the number of bytes in the byte-array value of
+\fIobjPtr\fR is greater than \fBINT_MAX\fR, the routine will fail due
+to being unable to correctly report the byte-array size to the caller.
+The ability to provide an \fBint\fR space is best considered a migration
+aid for codebases constrained to continue operating with Tcl releases
+older than 9.0.
+.PP
+\fBTcl_SetByteArrayLength\fR enables a caller to change the size of a
+byte-array in the internal representation of an unshared \fIobjPtr\fR to
+become \fInumBytes\fR bytes.  This is most often useful after the
+bytes of the internal byte-array have been directly overwritten and it
+has been discovered that the required size differs from the first
+estimate used in the allocation. \fBTcl_SetByteArrayLength\fR returns
+a pointer to the resized byte-array.  Because resizing the byte-array
+changes the internal representation, \fBTcl_SetByteArrayLength\fR
+also invalidates any string representation in \fIobjPtr\fR.  If resizing
+grows the byte-array, the new byte values are undefined.  If \fIobjPtr\fR
+does not already possess an internal byte-array, one is produced in the
+same way that \fBTcl_GetBytesFromObj\fR does, also returning NULL
+when any characters of the value in \fIobjPtr\fR (up to
+\fInumBytes\fR of them) are not valid bytes.
+.SH "REFERENCE COUNT MANAGEMENT"
 .PP
-\fBTcl_NewByteArrayObj\fR and \fBTcl_SetByteArrayObj\fR will
-create a new object of byte-array type or modify an existing object to have a
-byte-array type.  Both of these procedures set the object's type to be
-byte-array and set the object's internal representation to a copy of the
-array of bytes given by \fIbytes\fR. \fBTcl_NewByteArrayObj\fR returns a
-pointer to a newly allocated object with a reference count of zero.
-\fBTcl_SetByteArrayObj\fR invalidates any old string representation and, if
-the object is not already a byte-array object, frees any old internal
-representation.
+\fBTcl_NewByteArrayObj\fR always returns a zero-reference object, much
+like \fBTcl_NewObj\fR.
 .PP
-\fBTcl_GetByteArrayFromObj\fR converts a Tcl object to byte-array type and
-returns a pointer to the object's new internal representation as an array of
-bytes.  The length of this array is stored in \fIlengthPtr\fR if
-\fIlengthPtr\fR is non-NULL.  The storage for the array of bytes is owned by
-the object and should not be freed.  The contents of the array may be
-modified by the caller only if the object is not shared and the caller
-invalidates the string representation.  
+\fBTcl_SetByteArrayObj\fR and \fBTcl_SetByteArrayLength\fR do not modify the
+reference count of their \fIobjPtr\fR arguments, but do require that the
+object be unshared.
 .PP
-\fBTcl_SetByteArrayLength\fR converts the Tcl object to byte-array type
-and changes the length of the object's internal representation as an
-array of bytes.  If \fIlength\fR is greater than the space currently
-allocated for the array, the array is reallocated to the new length; the
-newly allocated bytes at the end of the array have arbitrary values.  If
-\fIlength\fR is less than the space currently allocated for the array,
-the length of array is reduced to the new length.  The return value is a
-pointer to the object's new array of bytes.  
+\fBTcl_GetBytesFromObj\fR and \fBTcl_GetByteArrayFromObj\fR do not modify
+the reference count of \fIobjPtr\fR; they only read.
 
 .SH "SEE ALSO"
 Tcl_GetStringFromObj, Tcl_NewObj, Tcl_IncrRefCount, Tcl_DecrRefCount
 
 .SH KEYWORDS
-object, byte array, utf, unicode, internationalization
+value, binary data, byte array, utf, unicode
diff --git a/doc/CallDel.3 b/doc/CallDel.3
index 0f53b2e..418998e 100644
--- a/doc/CallDel.3
+++ b/doc/CallDel.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_CallWhenDeleted 3 7.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -17,16 +17,16 @@ Tcl_CallWhenDeleted, Tcl_DontCallWhenDeleted \- Arrange for callback when interp
 \fBTcl_CallWhenDeleted\fR(\fIinterp\fR, \fIproc\fR, \fIclientData\fR)
 .sp
 \fBTcl_DontCallWhenDeleted\fR(\fIinterp\fR, \fIproc\fR, \fIclientData\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_InterpDeleteProc clientData
 .AP Tcl_Interp *interp in
 Interpreter with which to associated callback.
 .AP Tcl_InterpDeleteProc *proc in
 Procedure to call when \fIinterp\fR is deleted.
-.AP ClientData clientData in
+.AP void *clientData in
 Arbitrary one-word value to pass to \fIproc\fR.
 .BE
-
 .SH DESCRIPTION
 .PP
 \fBTcl_CallWhenDeleted\fR arranges for \fIproc\fR to be called by
@@ -36,11 +36,13 @@ is deleted, but the interpreter will still be valid at the
 time of the call.
 \fIProc\fR should have arguments and result that match the
 type \fBTcl_InterpDeleteProc\fR:
+.PP
 .CS
-typedef void Tcl_InterpDeleteProc(
-        ClientData \fIclientData\fR,
+typedef void \fBTcl_InterpDeleteProc\fR(
+        void *\fIclientData\fR,
         Tcl_Interp *\fIinterp\fR);
 .CE
+.PP
 The \fIclientData\fR and \fIinterp\fR parameters are
 copies of the \fIclientData\fR and \fIinterp\fR arguments given
 to \fBTcl_CallWhenDeleted\fR.
@@ -56,6 +58,12 @@ deleted.
 If there is no deletion callback that matches \fIinterp\fR,
 \fIproc\fR, and \fIclientData\fR then the call to
 \fBTcl_DontCallWhenDeleted\fR has no effect.
-
+.PP
+Note that if the callback is being used to delete a resource that \fImust\fR
+be released on exit, \fBTcl_CreateExitHandler\fR should be used to ensure that
+a callback is received even if the application terminates without deleting the
+interpreter.
+.SH "SEE ALSO"
+Tcl_CreateExitHandler(3), Tcl_CreateThreadExitHandler(3)
 .SH KEYWORDS
-callback, delete, interpreter
+callback, cleanup, delete, interpreter
diff --git a/doc/Cancel.3 b/doc/Cancel.3
new file mode 100644
index 0000000..e9b497a
--- /dev/null
+++ b/doc/Cancel.3
@@ -0,0 +1,82 @@
+'\"
+'\" Copyright (c) 2006-2008 Joe Mistachkin.
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH Tcl_Cancel 3 8.6 Tcl "Tcl Library Procedures"
+.so man.macros
+.BS
+.SH NAME
+Tcl_CancelEval, Tcl_Canceled \- cancel Tcl scripts
+.SH SYNOPSIS
+.nf
+\fB#include <tcl.h>\fR
+int
+\fBTcl_CancelEval\fR(\fIinterp, resultObjPtr, clientData, flags\fR)
+.sp
+int
+\fBTcl_Canceled\fR(\fIinterp, flags\fR)
+.fi
+.SH ARGUMENTS
+.AS Tcl_Interp *interp
+.AP Tcl_Interp *interp in
+Interpreter in which to cancel the script.
+.AP Tcl_Obj *resultObjPtr in
+Error message to use in the cancellation, or NULL to use a default message. If
+not NULL, this object will have its reference count decremented before
+\fBTcl_CancelEval\fR returns.
+.AP int flags in
+OR'ed combination of flag bits that specify additional options.
+For \fBTcl_CancelEval\fR, only \fBTCL_CANCEL_UNWIND\fR is currently
+supported.  For \fBTcl_Canceled\fR, only \fBTCL_LEAVE_ERR_MSG\fR and
+\fBTCL_CANCEL_UNWIND\fR are currently supported.
+.AP void *clientData in
+Currently reserved for future use.
+It should be set to NULL.
+.BE
+.SH DESCRIPTION
+.PP
+\fBTcl_CancelEval\fR cancels or unwinds the script in progress soon after
+the next invocation of asynchronous handlers, causing \fBTCL_ERROR\fR to be
+the return code for that script.  This function is thread-safe and may be
+called from any thread in the process.
+.PP
+\fBTcl_Canceled\fR checks if the script in progress has been canceled and
+returns \fBTCL_ERROR\fR if it has.  Otherwise, \fBTCL_OK\fR is returned.
+Extensions can use this function to check to see if they should abort a long
+running command.  This function is thread sensitive and may only be called
+from the thread the interpreter was created in.
+.SS "FLAG BITS"
+Any OR'ed combination of the following values may be used for the
+\fIflags\fR argument to procedures such as \fBTcl_CancelEval\fR:
+.TP 20
+\fBTCL_CANCEL_UNWIND\fR
+.
+This flag is used by \fBTcl_CancelEval\fR and \fBTcl_Canceled\fR.
+For \fBTcl_CancelEval\fR, if this flag is set, the script in progress
+is canceled and the evaluation stack for the interpreter is unwound.
+For \fBTcl_Canceled\fR, if this flag is set, the script in progress
+is considered to be canceled only if the evaluation stack for the
+interpreter is being unwound.
+.TP 20
+\fBTCL_LEAVE_ERR_MSG\fR
+.
+This flag is only used by \fBTcl_Canceled\fR; it is ignored by
+other procedures.  If an error is returned and this bit is set in
+\fIflags\fR, then an error message will be left in the interpreter's
+result, where it can be retrieved with \fBTcl_GetObjResult\fR or
+\fBTcl_GetStringResult\fR.  If this flag bit is not set then no error
+message is left and the interpreter's result will not be modified.
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+\fBTcl_CancelEval\fR always decrements the reference count of its
+\fIresultObjPtr\fR argument (if that is non-NULL). It is expected to
+be usually called with an object with zero reference count. If the
+object is shared with some other location (including the Tcl
+evaluation stack) it should have its reference count incremented
+before calling this function.
+.SH "SEE ALSO"
+interp(n), Tcl_Eval(3)
+.SH KEYWORDS
+cancel, unwind
diff --git a/doc/ChnlStack.3 b/doc/ChnlStack.3
index 16dc745..3a16c9d 100644
--- a/doc/ChnlStack.3
+++ b/doc/ChnlStack.3
@@ -11,7 +11,6 @@
 Tcl_StackChannel, Tcl_UnstackChannel, Tcl_GetStackedChannel, Tcl_GetTopChannel \- manipulate stacked I/O channels
 .SH SYNOPSIS
 .nf
-.nf
 \fB#include <tcl.h>\fR
 .sp
 Tcl_Channel
@@ -25,14 +24,14 @@ Tcl_Channel
 .sp
 Tcl_Channel
 \fBTcl_GetTopChannel\fR(\fIchannel\fR)
-.sp
+.fi
 .SH ARGUMENTS
 .AS Tcl_ChannelType clientData
 .AP Tcl_Interp *interp in
 Interpreter for error reporting.
-.AP Tcl_ChannelType *typePtr in
+.AP "const Tcl_ChannelType" *typePtr in
 The new channel I/O procedures to use for \fIchannel\fR.
-.AP ClientData clientData in
+.AP void *clientData in
 Arbitrary one-word value to pass to channel I/O procedures.
 .AP int mask in
 Conditions under which \fIchannel\fR will be used: OR-ed combination of
@@ -49,11 +48,8 @@ I/O channels.  Examples include compression and encryption modules.  These
 functions transparently stack and unstack a new channel on top of an
 existing one.  Any number of channels can be stacked together.
 .PP
-The implementation of the Tcl channel code was rewritten in 8.3.2 to
-correct some problems with the previous implementation with regard to
-stacked channels.  Anyone using stacked channels or creating stacked
-channel drivers should update to the new \fBTCL_CHANNEL_VERSION_2\fR
-\fBTcl_ChannelType\fR structure.  See \fBTcl_CreateChannel\fR for details.
+The \fBTcl_ChannelType\fR version currently supported is
+\fBTCL_CHANNEL_VERSION_5\fR.  See \fBTcl_CreateChannel\fR for details.
 .PP
 \fBTcl_StackChannel\fR stacks a new \fIchannel\fR on an existing channel
 with the same name that was registered for \fIchannel\fR by
@@ -91,7 +87,7 @@ channels the supplied channel is part of.
 channels which is just below the supplied channel.
 
 .SH "SEE ALSO"
-Notifier(3), Tcl_CreateChannel(3), Tcl_OpenFileChannel(3), vwait(n).
+Notifier(3), Tcl_CreateChannel(3), Tcl_OpenFileChannel(3), vwait(n)
 
 .SH KEYWORDS
 channel, compression
diff --git a/doc/Class.3 b/doc/Class.3
new file mode 100644
index 0000000..4a659c1
--- /dev/null
+++ b/doc/Class.3
@@ -0,0 +1,290 @@
+'\"
+'\" Copyright (c) 2007 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH Tcl_Class 3 0.1 TclOO "TclOO Library Functions"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+Tcl_ClassGetMetadata, Tcl_ClassSetMetadata, Tcl_CopyObjectInstance, Tcl_GetClassAsObject, Tcl_GetObjectAsClass, Tcl_GetObjectCommand, Tcl_GetObjectFromObj, Tcl_GetObjectName, Tcl_GetObjectNamespace, Tcl_NewObjectInstance, Tcl_ObjectDeleted, Tcl_ObjectGetMetadata, Tcl_ObjectGetMethodNameMapper, Tcl_ObjectSetMetadata, Tcl_ObjectSetMethodNameMapper \- manipulate objects and classes
+.SH SYNOPSIS
+.nf
+\fB#include <tclOO.h>\fR
+.sp
+Tcl_Object
+\fBTcl_GetObjectFromObj\fR(\fIinterp, objPtr\fR)
+.sp
+Tcl_Object
+\fBTcl_GetClassAsObject\fR(\fIclass\fR)
+.sp
+Tcl_Class
+\fBTcl_GetObjectAsClass\fR(\fIobject\fR)
+.sp
+Tcl_Obj *
+\fBTcl_GetObjectName\fR(\fIinterp, object\fR)
+.sp
+Tcl_Command
+\fBTcl_GetObjectCommand\fR(\fIobject\fR)
+.sp
+Tcl_Namespace *
+\fBTcl_GetObjectNamespace\fR(\fIobject\fR)
+.sp
+Tcl_Object
+\fBTcl_NewObjectInstance\fR(\fIinterp, class, name, nsName, objc, objv, skip\fR)
+.sp
+Tcl_Object
+\fBTcl_CopyObjectInstance\fR(\fIinterp, object, name, nsName\fR)
+.sp
+int
+\fBTcl_ObjectDeleted\fR(\fIobject\fR)
+.sp
+void *
+\fBTcl_ObjectGetMetadata\fR(\fIobject, metaTypePtr\fR)
+.sp
+\fBTcl_ObjectSetMetadata\fR(\fIobject, metaTypePtr, metadata\fR)
+.sp
+void *
+\fBTcl_ClassGetMetadata\fR(\fIclass, metaTypePtr\fR)
+.sp
+\fBTcl_ClassSetMetadata\fR(\fIclass, metaTypePtr, metadata\fR)
+.sp
+Tcl_ObjectMapMethodNameProc
+\fBTcl_ObjectGetMethodNameMapper\fR(\fIobject\fR)
+.sp
+\fBTcl_ObjectSetMethodNameMapper\fR(\fIobject\fR, \fImethodNameMapper\fR)
+.sp
+.VS TIP605
+Tcl_Class
+\fBTcl_GetClassOfObject\fR(\fIobject\fR)
+.sp
+Tcl_Obj *
+\fBTcl_GetObjectClassName\fR(\fIinterp\fR, \fIobject\fR)
+.VE TIP605
+.fi
+.SH ARGUMENTS
+.AS void *metadata in/out
+.AP Tcl_Interp *interp in/out
+Interpreter providing the context for looking up or creating an object, and
+into whose result error messages will be written on failure.
+.AP Tcl_Obj *objPtr in
+The name of the object to look up.
+.AP Tcl_Object object in
+Reference to the object to operate upon.
+.AP Tcl_Class class in
+Reference to the class to operate upon.
+.AP "const char" *name in
+The name of the object to create, or NULL if a new unused name is to be
+automatically selected.
+.AP "const char" *nsName in
+The name of the namespace to create for the object's private use, or NULL if a
+new unused name is to be automatically selected. The namespace must not
+already exist.
+.AP Tcl_Size objc in
+The number of elements in the \fIobjv\fR array.
+.AP "Tcl_Obj *const" *objv in
+The arguments to the command to create the instance of the class.
+.AP Tcl_Size skip in
+The number of arguments at the start of the argument array, \fIobjv\fR, that
+are not arguments to any constructors. This allows the generation of correct
+error messages even when complicated calling patterns are used (e.g., via the
+\fBnext\fR command).
+.AP Tcl_ObjectMetadataType *metaTypePtr in
+The type of \fImetadata\fR being set with \fBTcl_ClassSetMetadata\fR or
+retrieved with \fBTcl_ClassGetMetadata\fR.
+.AP void *metadata in
+An item of metadata to attach to the class, or NULL to remove the metadata
+associated with a particular \fImetaTypePtr\fR.
+.AP "Tcl_ObjectMapMethodNameProc" "methodNameMapper" in
+A pointer to a function to call to adjust the mapping of objects and method
+names to implementations, or NULL when no such mapping is required.
+.BE
+.SH DESCRIPTION
+.PP
+Objects are typed entities that have a set of operations ("methods")
+associated with them. Classes are objects that can manufacture objects. Each
+class can be viewed as an object itself; the object view can be retrieved
+using \fBTcl_GetClassAsObject\fR which always returns the object when applied
+to a non-destroyed class, and an object can be viewed as a class with the aid
+of the \fBTcl_GetObjectAsClass\fR (which either returns the class, or NULL if
+the object is not a class). An object may be looked up using the
+\fBTcl_GetObjectFromObj\fR function, which either returns an object or NULL
+(with an error message in the interpreter result) if the object cannot be
+found. The correct way to look up a class by name is to look up the object
+with that name, and then to use \fBTcl_GetObjectAsClass\fR.
+.PP
+Every object has its own command and namespace associated with it. The command
+may be retrieved using the \fBTcl_GetObjectCommand\fR function, the name of
+the object (and hence the name of the command) with \fBTcl_GetObjectName\fR,
+and the namespace may be retrieved using the \fBTcl_GetObjectNamespace\fR
+function. Note that the Tcl_Obj reference returned by \fBTcl_GetObjectName\fR
+is a shared reference. You can also get whether the object has been marked for
+deletion with \fBTcl_ObjectDeleted\fR (it returns true if deletion of the
+object has begun); this can be useful during the processing of methods.
+.VS TIP605
+The class of an object can be retrieved with \fBTcl_GetClassOfObject\fR, and
+the name of the class of an object with \fBTcl_GetObjectClassName\fR; note
+that these two \fImay\fR return NULL during deletion of an object (this is
+transient, and only occurs when the object is a long way through being
+deleted).
+.VE TIP605
+.PP
+Instances of classes are created using \fBTcl_NewObjectInstance\fR, which
+creates an object from any class (and which is internally called by both
+the \fBcreate\fR and \fBnew\fR methods of the \fBoo::class\fR class). It takes
+parameters that optionally give the name of the object and namespace to
+create, and which describe the arguments to pass to the class's constructor
+(if any). The result of the function will be either a reference to the newly
+created object, or NULL if the creation failed (when an error message will be
+left in the interpreter result). In addition, objects may be copied by using
+\fBTcl_CopyObjectInstance\fR which creates a copy of an object without running
+any constructors.
+.PP
+Note that the lifetime management of objects is handled internally within
+TclOO, and does not use \fBTcl_Preserve\fR. \fIIt is not safe to put a
+Tcl_Object handle in a C structure with a lifespan different to the object;\fR
+you should use the object's command name (as retrieved with
+\fBTcl_GetObjectName\fR) instead. It is safe to use a Tcl_Object handle for
+the lifespan of a call of a method on that object; handles do not become
+invalid while there is an outstanding call on their object (even if the only
+operation guaranteed to be safe on them is \fBTcl_ObjectDeleted\fR; the other
+operations are only guaranteed to work on non-deleted objects).
+.SH "OBJECT AND CLASS METADATA"
+.PP
+Every object and every class may have arbitrary amounts of metadata attached
+to it, which the object or class attaches no meaning to beyond what is
+described in a Tcl_ObjectMetadataType structure instance. Metadata to be
+attached is described by the type of the metadata (given in the
+\fImetaTypePtr\fR argument) and an arbitrary pointer (the \fImetadata\fR
+argument) that are given to \fBTcl_ObjectSetMetadata\fR and
+\fBTcl_ClassSetMetadata\fR, and a particular piece of metadata can be
+retrieved given its type using \fBTcl_ObjectGetMetadata\fR and
+\fBTcl_ClassGetMetadata\fR. If the \fImetadata\fR parameter to either
+\fBTcl_ObjectSetMetadata\fR or \fBTcl_ClassSetMetadata\fR is NULL, the
+metadata is removed if it was attached, and the results of
+\fBTcl_ObjectGetMetadata\fR and \fBTcl_ClassGetMetadata\fR are NULL if the
+given type of metadata was not attached. It is not an error to request or
+remove a piece of metadata that was not attached.
+.SS "TCL_OBJECTMETADATATYPE STRUCTURE"
+.PP
+The contents of the Tcl_ObjectMetadataType structure are as follows:
+.PP
+.CS
+typedef const struct {
+    int \fIversion\fR;
+    const char *\fIname\fR;
+    Tcl_ObjectMetadataDeleteProc *\fIdeleteProc\fR;
+    Tcl_CloneProc *\fIcloneProc\fR;
+} \fBTcl_ObjectMetadataType\fR;
+.CE
+.PP
+The \fIversion\fR field allows for future expansion of the structure, and
+should always be declared equal to TCL_OO_METADATA_VERSION_CURRENT. The
+\fIname\fR field provides a human-readable name for the type, and is reserved
+for debugging.
+.PP
+The \fIdeleteProc\fR field gives a function of type
+Tcl_ObjectMetadataDeleteProc that is used to delete a particular piece of
+metadata, and is called when the attached metadata is replaced or removed; the
+field must not be NULL.
+.PP
+The \fIcloneProc\fR field gives a function that is used to copy a piece of
+metadata (used when a copy of an object is created using
+\fBTcl_CopyObjectInstance\fR); if NULL, the metadata will be just directly
+copied.
+.SS "TCL_OBJECTMETADATADELETEPROC FUNCTION SIGNATURE"
+.PP
+Functions matching this signature are used to delete metadata associated with
+a class or object.
+.PP
+.CS
+typedef void \fBTcl_ObjectMetadataDeleteProc\fR(
+        void *\fImetadata\fR);
+.CE
+.PP
+The \fImetadata\fR argument gives the address of the metadata to be
+deleted.
+.SS "TCL_CLONEPROC FUNCTION SIGNATURE"
+.PP
+Functions matching this signature are used to create copies of metadata
+associated with a class or object.
+.PP
+.CS
+typedef int \fBTcl_CloneProc\fR(
+        Tcl_Interp *\fIinterp\fR,
+        void *\fIsrcMetadata\fR,
+        void **\fIdstMetadataPtr\fR);
+.CE
+.PP
+The \fIinterp\fR argument gives a place to write an error message when the
+attempt to clone the object is to fail, in which case the clone procedure must
+also return TCL_ERROR; it should return TCL_OK otherwise.
+The \fIsrcMetadata\fR argument gives the address of the metadata to be cloned,
+and the cloned metadata should be written into the variable pointed to by
+\fIdstMetadataPtr\fR; a NULL should be written if the metadata is to not be
+cloned but the overall object copy operation is still to succeed.
+.SH "OBJECT METHOD NAME MAPPING"
+It is possible to control, on a per-object basis, what methods are invoked
+when a particular method is invoked. Normally this is done by looking up the
+method name in the object and then in the class hierarchy, but fine control of
+exactly what the value used to perform the look up is afforded through the
+ability to set a method name mapper callback via
+\fBTcl_ObjectSetMethodNameMapper\fR (and its introspection counterpart,
+\fBTcl_ObjectGetMethodNameMapper\fR, which returns the current mapper). The
+current mapper (if any) is invoked immediately before looking up what chain of
+method implementations is to be used.
+.SS "TCL_OBJECTMAPMETHODNAMEPROC FUNCTION SIGNATURE"
+The \fITcl_ObjectMapMethodNameProc\fR callback is defined as follows:
+.PP
+.CS
+typedef int \fBTcl_ObjectMapMethodNameProc\fR(
+        Tcl_Interp *\fIinterp\fR,
+        Tcl_Object \fIobject\fR,
+        Tcl_Class *\fIstartClsPtr\fR,
+        Tcl_Obj *\fImethodNameObj\fR);
+.CE
+.PP
+If the result is TCL_OK, the remapping is assumed to have been done. If the
+result is TCL_ERROR, an error message will have been left in \fIinterp\fR and
+the method call will fail. If the result is TCL_BREAK, the standard method
+name lookup rules will be used; the behavior of other result codes is
+currently undefined. The \fIobject\fR parameter says which object is being
+processed. The \fIstartClsPtr\fR parameter points to a variable that contains
+the first class to provide a definition in the method chain to process, or
+NULL if the whole chain is to be processed (the argument itself is never
+NULL); this variable may be updated by the callback. The \fImethodNameObj\fR
+parameter gives an unshared object containing the name of the method being
+invoked, as provided by the user; this object may be updated by the callback.
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+The \fIobjPtr\fR argument to \fBTcl_GetObjectFromObj\fR will not have its
+reference count manipulated, but this function may modify the interpreter
+result (to report any error) so interpreter results should not be fed into
+this without an additional reference being used.
+.PP
+The result of \fBTcl_GetObjectName\fR is a value that is owned by the object
+that is regenerated when this function is first called after the object is
+renamed.  If the value is to be retained at all, the caller should increment
+the reference count.
+.PP
+The first \fIobjc\fR values in the \fIobjv\fR argument to
+\fBTcl_NewObjectInstance\fR are the arguments to pass to the constructor. They
+must have a reference count of at least 1, and may have their reference counts
+changed during the running of the constructor. Constructors may modify the
+interpreter result, which consequently means that interpreter results should
+not be used as arguments without an additional reference being taken.
+.PP
+The \fImethodNameObj\fR argument to a Tcl_ObjectMapMethodNameProc
+implementation will be a value with a reference count of at least 1 where at
+least one reference is not held by the interpreter result. It is expected that
+method name mappers will only read their \fImethodNameObj\fR arguments.
+.SH "SEE ALSO"
+Method(3), oo::class(n), oo::copy(n), oo::define(n), oo::object(n)
+.SH KEYWORDS
+class, constructor, object
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/CmdCmplt.3 b/doc/CmdCmplt.3
index 25b372e..2c18efe 100644
--- a/doc/CmdCmplt.3
+++ b/doc/CmdCmplt.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_CommandComplete 3 "" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -16,6 +16,7 @@ Tcl_CommandComplete \- Check for unmatched braces in a Tcl command
 .sp
 int
 \fBTcl_CommandComplete\fR(\fIcmd\fR)
+.fi
 .SH ARGUMENTS
 .AS "const char" *cmd
 .AP "const char" *cmd in
diff --git a/doc/Concat.3 b/doc/Concat.3
index 58a0fb6..5357dae 100644
--- a/doc/Concat.3
+++ b/doc/Concat.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_Concat 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -16,9 +16,10 @@ Tcl_Concat \- concatenate a collection of strings
 .sp
 const char *
 \fBTcl_Concat\fR(\fIargc, argv\fR)
+.fi
 .SH ARGUMENTS
 .AS "const char *const" argv[]
-.AP int argc in
+.AP Tcl_Size argc in
 Number of strings.
 .AP "const char *const" argv[] in
 Array of strings to concatenate.  Must have \fIargc\fR entries.
diff --git a/doc/CrtSlave.3 b/doc/CrtAlias.3
index 8457d21..ba2e415 100644
--- a/doc/CrtSlave.3
+++ b/doc/CrtAlias.3
@@ -3,12 +3,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-.TH Tcl_CreateSlave 3 7.6 Tcl "Tcl Library Procedures"
+'\"
+.TH Tcl_CreateAlias 3 7.6 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_IsSafe, Tcl_MakeSafe, Tcl_CreateSlave, Tcl_GetSlave, Tcl_GetMaster, Tcl_GetInterpPath, Tcl_CreateAlias, Tcl_CreateAliasObj, Tcl_GetAlias, Tcl_GetAliasObj, Tcl_ExposeCommand, Tcl_HideCommand \- manage multiple Tcl interpreters, aliases and hidden commands
+Tcl_IsSafe, Tcl_CreateChild, Tcl_GetChild, Tcl_GetParent, Tcl_GetInterpPath, Tcl_CreateAlias, Tcl_CreateAliasObj, Tcl_GetAliasObj, Tcl_ExposeCommand, Tcl_HideCommand \- manage multiple Tcl interpreters, aliases and hidden commands
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -16,35 +16,28 @@ Tcl_IsSafe, Tcl_MakeSafe, Tcl_CreateSlave, Tcl_GetSlave, Tcl_GetMaster, Tcl_GetI
 int
 \fBTcl_IsSafe\fR(\fIinterp\fR)
 .sp
-int
-\fBTcl_MakeSafe\fR(\fIinterp\fR)
-.sp
 Tcl_Interp *
-\fBTcl_CreateSlave\fR(\fIinterp, slaveName, isSafe\fR)
+\fBTcl_CreateChild\fR(\fIinterp, name, isSafe\fR)
 .sp
 Tcl_Interp *
-\fBTcl_GetSlave\fR(\fIinterp, slaveName\fR)
+\fBTcl_GetChild\fR(\fIinterp, name\fR)
 .sp
 Tcl_Interp *
-\fBTcl_GetMaster\fR(\fIinterp\fR)
+\fBTcl_GetParent\fR(\fIinterp\fR)
 .sp
 int
-\fBTcl_GetInterpPath\fR(\fIaskingInterp, slaveInterp\fR)
+\fBTcl_GetInterpPath\fR(\fIinterp, childInterp\fR)
 .sp
 int
-\fBTcl_CreateAlias\fR(\fIslaveInterp, slaveCmd, targetInterp, targetCmd,
+\fBTcl_CreateAlias\fR(\fIchildInterp, childCmd, targetInterp, targetCmd,
                 argc, argv\fR)
 .sp
 int
-\fBTcl_CreateAliasObj\fR(\fIslaveInterp, slaveCmd, targetInterp, targetCmd,
+\fBTcl_CreateAliasObj\fR(\fIchildInterp, childCmd, targetInterp, targetCmd,
                    objc, objv\fR)
 .sp
 int
-\fBTcl_GetAlias\fR(\fIinterp, slaveCmd, targetInterpPtr, targetCmdPtr,
-             argcPtr, argvPtr\fR)
-.sp
-int
-\fBTcl_GetAliasObj\fR(\fIinterp, slaveCmd, targetInterpPtr, targetCmdPtr,
+\fBTcl_GetAliasObj\fR(\fIinterp, childCmd, targetInterpPtr, targetCmdPtr,
                 objcPtr, objvPtr\fR)
 .sp
 int
@@ -52,36 +45,37 @@ int
 .sp
 int
 \fBTcl_HideCommand\fR(\fIinterp, cmdName, hiddenCmdName\fR)
+.fi
 .SH ARGUMENTS
 .AS "const char *const" **targetInterpPtr out
 .AP Tcl_Interp *interp in
 Interpreter in which to execute the specified command.
-.AP "const char" *slaveName in
-Name of slave interpreter to create or manipulate.
+.AP "const char" *name in
+Name of child interpreter to create or manipulate.
 .AP int isSafe in
 If non-zero, a
 .QW safe
-slave that is suitable for running untrusted code
-is created, otherwise a trusted slave is created.
-.AP Tcl_Interp *slaveInterp in
+child that is suitable for running untrusted code
+is created, otherwise a trusted child is created.
+.AP Tcl_Interp *childInterp in
 Interpreter to use for creating the source command for an alias (see
 below).
-.AP "const char" *slaveCmd in
+.AP "const char" *childCmd in
 Name of source command for alias.
 .AP Tcl_Interp *targetInterp in
 Interpreter that contains the target command for an alias.
 .AP "const char" *targetCmd in
 Name of target command for alias in \fItargetInterp\fR.
-.AP int argc in
+.AP Tcl_Size argc in
 Count of additional arguments to pass to the alias command.
 .AP "const char *const" *argv in
 Vector of strings, the additional arguments to pass to the alias command.
 This storage is owned by the caller.
-.AP int objc in
-Count of additional object arguments to pass to the alias object command.
+.AP Tcl_Size objc in
+Count of additional value arguments to pass to the aliased command.
 .AP Tcl_Obj **objv in
-Vector of Tcl_Obj structures, the additional object arguments to pass to
-the alias object command.
+Vector of Tcl_Obj structures, the additional value arguments to pass to
+the aliased command.
 This storage is owned by the caller.
 .AP Tcl_Interp **targetInterpPtr in
 Pointer to location to store the address of the interpreter where a target
@@ -89,19 +83,16 @@ command is defined for an alias.
 .AP "const char" **targetCmdPtr out
 Pointer to location to store the address of the name of the target command
 for an alias.
-.AP int *argcPtr out
-Pointer to location to store count of additional arguments to be passed to
-the alias. The location is in storage owned by the caller.
-.AP "const char" ***argvPtr out
-Pointer to location to store a vector of strings, the additional arguments
-to pass to an alias. The location is in storage owned by the caller, the
-vector of strings is owned by the called function.
-.AP int *objcPtr out
-Pointer to location to store count of additional object arguments to be
+.AP "Tcl_Size \&| int" *objcPtr out
+Pointer to location to store count of additional value arguments to be
 passed to the alias. The location is in storage owned by the caller.
+If it points to a variable which type is not \fBTcl_Size\fR, a compiler
+warning will be generated. If your extensions is compiled with -DTCL_8_API,
+this function will return TCL_ERROR for aliases with more than INT_MAX
+value arguments, otherwise expect it to crash
 .AP Tcl_Obj ***objvPtr out
 Pointer to location to store a vector of Tcl_Obj structures, the additional
-arguments to pass to an object alias command. The location is in storage
+arguments to pass to an alias command. The location is in storage
 owned by the caller, the vector of Tcl_Obj structures is owned by the
 called function.
 .AP "const char" *cmdName in
@@ -119,118 +110,111 @@ in a hierarchical relationship, and the management of aliases, commands
 that when invoked in one interpreter execute a command in another
 interpreter. The return value for those procedures that return an \fBint\fR
 is either \fBTCL_OK\fR or \fBTCL_ERROR\fR. If \fBTCL_ERROR\fR is returned
-then the \fBresult\fR field of the interpreter contains an error message.
+then the interpreter's result contains an error message.
 .PP
-\fBTcl_CreateSlave\fR creates a new interpreter as a slave of \fIinterp\fR.
-It also creates a slave command named \fIslaveName\fR in \fIinterp\fR which 
-allows \fIinterp\fR to manipulate the new slave. 
-If \fIisSafe\fR is zero, the command creates a trusted slave in which Tcl
+\fBTcl_CreateChild\fR creates a new interpreter as a child of \fIinterp\fR.
+It also creates a child command named \fIname\fR in \fIinterp\fR which
+allows \fIinterp\fR to manipulate the new child.
+If \fIisSafe\fR is zero, the command creates a trusted child in which Tcl
 code has access to all the Tcl commands.
 If it is \fB1\fR, the command creates a
 .QW safe
-slave in which Tcl code has access only to set of Tcl commands defined as
+child in which Tcl code has access only to set of Tcl commands defined as
 .QW "Safe Tcl" ;
 see the manual entry for the Tcl \fBinterp\fR command for details.
-If the creation of the new slave interpreter failed, \fBNULL\fR is returned.
+If the creation of the new child interpreter failed, \fBNULL\fR is returned.
 .PP
 \fBTcl_IsSafe\fR returns \fB1\fR if \fIinterp\fR is
 .QW safe
 (was created with the \fBTCL_SAFE_INTERPRETER\fR flag specified),
 \fB0\fR otherwise.
 .PP
-\fBTcl_MakeSafe\fR marks \fIinterp\fR as
-.QW safe ,
-so that future
-calls to \fBTcl_IsSafe\fR will return 1.  It also removes all known
-potentially-unsafe core functionality (both commands and variables)
-from \fIinterp\fR.  However, it cannot know what parts of an extension
-or application are safe and does not make any attempt to remove those
-parts, so safety is not guaranteed after calling \fBTcl_MakeSafe\fR.
-Callers will want to take care with their use of \fBTcl_MakeSafe\fR
-to avoid false claims of safety.  For many situations, \fBTcl_CreateSlave\fR
-may be a better choice, since it creates interpreters in a known-safe state.
+\fBTcl_GetChild\fR returns a pointer to a child interpreter of
+\fIinterp\fR. The child interpreter is identified by \fIname\fR.
+If no such child interpreter exists, \fBNULL\fR is returned.
 .PP
-\fBTcl_GetSlave\fR returns a pointer to a slave interpreter of
-\fIinterp\fR. The slave interpreter is identified by \fIslaveName\fR.
-If no such slave interpreter exists, \fBNULL\fR is returned.
-.PP
-\fBTcl_GetMaster\fR returns a pointer to the master interpreter of
-\fIinterp\fR. If \fIinterp\fR has no master (it is a
+\fBTcl_GetParent\fR returns a pointer to the parent interpreter of
+\fIinterp\fR. If \fIinterp\fR has no parent (it is a
 top-level interpreter) then \fBNULL\fR is returned.
 .PP
-\fBTcl_GetInterpPath\fR sets the \fIresult\fR field in \fIaskingInterp\fR
-to the relative path between \fIaskingInterp\fR and \fIslaveInterp\fR;
-\fIslaveInterp\fR must be a slave of \fIaskingInterp\fR. If the computation
+\fBTcl_GetInterpPath\fR stores in the result of \fIinterp\fR
+the relative path between \fIinterp\fR and \fIchildInterp\fR;
+\fIchildInterp\fR must be a child of \fIinterp\fR. If the computation
 of the relative path succeeds, \fBTCL_OK\fR is returned, else
-\fBTCL_ERROR\fR is returned and the \fIresult\fR field in
-\fIaskingInterp\fR contains the error message.
+\fBTCL_ERROR\fR is returned and an error message is stored as the
+result of \fIinterp\fR.
 .PP
-\fBTcl_CreateAlias\fR creates an object command named \fIslaveCmd\fR in
-\fIslaveInterp\fR that when invoked, will cause the command \fItargetCmd\fR
+\fBTcl_CreateAlias\fR creates a command named \fIchildCmd\fR in
+\fIchildInterp\fR that when invoked, will cause the command \fItargetCmd\fR
 to be invoked in \fItargetInterp\fR. The arguments specified by the strings
 contained in \fIargv\fR are always prepended to any arguments supplied in the
-invocation of \fIslaveCmd\fR and passed to \fItargetCmd\fR.
+invocation of \fIchildCmd\fR and passed to \fItargetCmd\fR.
 This operation returns \fBTCL_OK\fR if it succeeds, or \fBTCL_ERROR\fR if
-it fails; in that case, an error message is left in the object result
-of \fIslaveInterp\fR.
+it fails; in that case, an error message is left in the value result
+of \fIchildInterp\fR.
 Note that there are no restrictions on the ancestry relationship (as
-created by \fBTcl_CreateSlave\fR) between \fIslaveInterp\fR and
+created by \fBTcl_CreateChild\fR) between \fIchildInterp\fR and
 \fItargetInterp\fR. Any two interpreters can be used, without any
 restrictions on how they are related.
 .PP
-\fBTcl_CreateAliasObj\fR is similar to \fBTcl_CreateAlias\fR except 
-that it takes a vector of objects to pass as additional arguments instead
+\fBTcl_CreateAliasObj\fR is similar to \fBTcl_CreateAlias\fR except
+that it takes a vector of values to pass as additional arguments instead
 of a vector of strings.
 .PP
-\fBTcl_GetAlias\fR returns information about an alias \fIaliasName\fR
+\fBTcl_GetAliasObj\fR returns information in the form of a pointer to
+a vector of Tcl_Obj structures about an alias \fIaliasName\fR
 in \fIinterp\fR. Any of the result fields can be \fBNULL\fR, in
 which case the corresponding datum is not returned. If a result field is
 non\-\fBNULL\fR, the address indicated is set to the corresponding datum.
-For example, if \fItargetNamePtr\fR is non\-\fBNULL\fR it is set to a
+For example, if \fItargetCmdPtr\fR is non\-\fBNULL\fR it is set to a
 pointer to the string containing the name of the target command.
 .PP
-\fBTcl_GetAliasObj\fR is similar to \fBTcl_GetAlias\fR except that it
-returns a pointer to a vector of Tcl_Obj structures instead of a vector of
-strings.
-.PP
 \fBTcl_ExposeCommand\fR moves the command named \fIhiddenCmdName\fR from
 the set of hidden commands to the set of exposed commands, putting
 it under the name
-\fIcmdName\fR. 
+\fIcmdName\fR.
 \fIHiddenCmdName\fR must be the name of an existing hidden
-command, or the operation will return \fBTCL_ERROR\fR and leave an error
-message in the \fIresult\fR field in \fIinterp\fR.
+command, or the operation will return \fBTCL_ERROR\fR and
+leave an error message as the result of \fIinterp\fR.
 If an exposed command named \fIcmdName\fR already exists,
-the operation returns \fBTCL_ERROR\fR and leaves an error message in the
-object result of \fIinterp\fR.
+the operation returns \fBTCL_ERROR\fR and leaves an error message as
+the result of \fIinterp\fR.
 If the operation succeeds, it returns \fBTCL_OK\fR.
-After executing this command, attempts to use \fIcmdName\fR in a call to
-\fBTcl_Eval\fR or with the Tcl \fBeval\fR command will again succeed.
+After executing this command, attempts to use \fIcmdName\fR in any
+script evaluation mechanism will again succeed.
 .PP
 \fBTcl_HideCommand\fR moves the command named \fIcmdName\fR from the set of
 exposed commands to the set of hidden commands, under the name
 \fIhiddenCmdName\fR.
 \fICmdName\fR must be the name of an existing exposed
 command, or the operation will return \fBTCL_ERROR\fR and leave an error
-message in the object result of \fIinterp\fR.
+message as the result of \fIinterp\fR.
 Currently both \fIcmdName\fR and \fIhiddenCmdName\fR must not contain
 namespace qualifiers, or the operation will return \fBTCL_ERROR\fR and
-leave an error message in the object result of \fIinterp\fR.
+leave an error message as the result of \fIinterp\fR.
 The \fICmdName\fR will be looked up in the global namespace, and not
 relative to the current namespace, even if the current namespace is not the
 global one.
 If a hidden command whose name is \fIhiddenCmdName\fR already
-exists, the operation also returns \fBTCL_ERROR\fR and the \fIresult\fR
-field in \fIinterp\fR contains an error message.
+exists, the operation also returns \fBTCL_ERROR\fR and an error
+message is left as the result of \fIinterp\fR.
 If the operation succeeds, it returns \fBTCL_OK\fR.
-After executing this command, attempts to use \fIcmdName\fR in a call to
-\fBTcl_Eval\fR or with the Tcl \fBeval\fR command will fail.
+After executing this command, attempts to use \fIcmdName\fR in
+any script evaluation mechanism will fail.
 .PP
 For a description of the Tcl interface to multiple interpreters, see
 \fIinterp(n)\fR.
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+\fBTcl_CreateAliasObj\fR increments the reference counts of the values
+in its \fIobjv\fR argument. (That reference lasts the same length of
+time as the owning alias.)
+.PP
+\fBTcl_GetAliasObj\fR returns (via its \fIobjvPtr\fR argument) a
+pointer to values that it holds a reference to.
 .SH "SEE ALSO"
-interp
+interp(n)
 
 .SH KEYWORDS
 alias, command, exposed commands, hidden commands, interpreter, invoke,
-master, slave
+parent, child
diff --git a/doc/CrtChannel.3 b/doc/CrtChannel.3
index 969267d..10a227f 100644
--- a/doc/CrtChannel.3
+++ b/doc/CrtChannel.3
@@ -9,7 +9,7 @@
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
-Tcl_CreateChannel, Tcl_GetChannelInstanceData, Tcl_GetChannelType, Tcl_GetChannelName, Tcl_GetChannelHandle, Tcl_GetChannelMode, Tcl_GetChannelBufferSize, Tcl_SetChannelBufferSize, Tcl_NotifyChannel, Tcl_BadChannelOption, Tcl_ChannelName, Tcl_ChannelVersion, Tcl_ChannelBlockModeProc, Tcl_ChannelCloseProc, Tcl_ChannelClose2Proc, Tcl_ChannelInputProc, Tcl_ChannelOutputProc, Tcl_ChannelSeekProc, Tcl_ChannelWideSeekProc, Tcl_ChannelTruncateProc, Tcl_ChannelSetOptionProc, Tcl_ChannelGetOptionProc, Tcl_ChannelWatchProc, Tcl_ChannelGetHandleProc, Tcl_ChannelFlushProc, Tcl_ChannelHandlerProc, Tcl_ChannelThreadActionProc, Tcl_IsChannelShared, Tcl_IsChannelRegistered, Tcl_CutChannel, Tcl_SpliceChannel, Tcl_IsChannelExisting, Tcl_ClearChannelHandlers, Tcl_GetChannelThread, Tcl_ChannelBuffered \- procedures for creating and manipulating channels
+Tcl_CreateChannel, Tcl_GetChannelInstanceData, Tcl_GetChannelType, Tcl_GetChannelName, Tcl_GetChannelHandle, Tcl_GetChannelMode, Tcl_GetChannelBufferSize, Tcl_SetChannelBufferSize, Tcl_NotifyChannel, Tcl_BadChannelOption, Tcl_ChannelName, Tcl_ChannelVersion, Tcl_ChannelBlockModeProc, Tcl_ChannelClose2Proc, Tcl_ChannelInputProc, Tcl_ChannelOutputProc, Tcl_ChannelWideSeekProc, Tcl_ChannelTruncateProc, Tcl_ChannelSetOptionProc, Tcl_ChannelGetOptionProc, Tcl_ChannelWatchProc, Tcl_ChannelGetHandleProc, Tcl_ChannelFlushProc, Tcl_ChannelHandlerProc, Tcl_ChannelThreadActionProc, Tcl_IsChannelShared, Tcl_IsChannelRegistered, Tcl_CutChannel, Tcl_SpliceChannel, Tcl_IsChannelExisting, Tcl_ClearChannelHandlers, Tcl_GetChannelThread, Tcl_ChannelBuffered \- procedures for creating and manipulating channels
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -17,10 +17,10 @@ Tcl_CreateChannel, Tcl_GetChannelInstanceData, Tcl_GetChannelType, Tcl_GetChanne
 Tcl_Channel
 \fBTcl_CreateChannel\fR(\fItypePtr, channelName, instanceData, mask\fR)
 .sp
-ClientData
+void *
 \fBTcl_GetChannelInstanceData\fR(\fIchannel\fR)
 .sp
-Tcl_ChannelType *
+const Tcl_ChannelType *
 \fBTcl_GetChannelType\fR(\fIchannel\fR)
 .sp
 const char *
@@ -35,6 +35,11 @@ Tcl_ThreadId
 int
 \fBTcl_GetChannelMode\fR(\fIchannel\fR)
 .sp
+.VS TIP220
+int
+\fBTcl_RemoveChannelMode\fR(\fIinterp, channel, mode\fR)
+.VE TIP220
+.sp
 int
 \fBTcl_GetChannelBufferSize\fR(\fIchannel\fR)
 .sp
@@ -54,13 +59,10 @@ int
 int
 \fBTcl_IsChannelExisting\fR(\fIchannelName\fR)
 .sp
-void
 \fBTcl_CutChannel\fR(\fIchannel\fR)
 .sp
-void
 \fBTcl_SpliceChannel\fR(\fIchannel\fR)
 .sp
-void
 \fBTcl_ClearChannelHandlers\fR(\fIchannel\fR)
 .sp
 int
@@ -75,9 +77,6 @@ Tcl_ChannelTypeVersion
 Tcl_DriverBlockModeProc *
 \fBTcl_ChannelBlockModeProc\fR(\fItypePtr\fR)
 .sp
-Tcl_DriverCloseProc *
-\fBTcl_ChannelCloseProc\fR(\fItypePtr\fR)
-.sp
 Tcl_DriverClose2Proc *
 \fBTcl_ChannelClose2Proc\fR(\fItypePtr\fR)
 .sp
@@ -87,19 +86,14 @@ Tcl_DriverInputProc *
 Tcl_DriverOutputProc *
 \fBTcl_ChannelOutputProc\fR(\fItypePtr\fR)
 .sp
-Tcl_DriverSeekProc *
-\fBTcl_ChannelSeekProc\fR(\fItypePtr\fR)
-.sp
 Tcl_DriverWideSeekProc *
 \fBTcl_ChannelWideSeekProc\fR(\fItypePtr\fR)
 .sp
 Tcl_DriverThreadActionProc *
 \fBTcl_ChannelThreadActionProc\fR(\fItypePtr\fR)
 .sp
-.VS 8.5
 Tcl_DriverTruncateProc *
 \fBTcl_ChannelTruncateProc\fR(\fItypePtr\fR)
-.VE 8.5
 .sp
 Tcl_DriverSetOptionProc *
 \fBTcl_ChannelSetOptionProc\fR(\fItypePtr\fR)
@@ -118,7 +112,7 @@ Tcl_DriverFlushProc *
 .sp
 Tcl_DriverHandlerProc *
 \fBTcl_ChannelHandlerProc\fR(\fItypePtr\fR)
-.sp
+.fi
 .SH ARGUMENTS
 .AS "const Tcl_ChannelType" *channelName
 .AP "const Tcl_ChannelType" *typePtr in
@@ -127,8 +121,10 @@ can be called to perform I/O and other functions on the channel.
 .AP "const char" *channelName in
 The name of this channel, such as \fBfile3\fR; must not be in use
 by any other channel. Can be NULL, in which case the channel is
-created without a name.
-.AP ClientData instanceData in
+created without a name. If the created channel is assigned to one
+of the standard channels (\fBstdin\fR, \fBstdout\fR or \fBstderr\fR),
+the assigned channel name will be the name of the standard channel.
+.AP void *instanceData in
 Arbitrary one-word value to be associated with this channel.  This
 value is passed to procedures in \fItypePtr\fR when they are invoked.
 .AP int mask in
@@ -139,10 +135,10 @@ The channel to operate on.
 .AP int direction in
 \fBTCL_READABLE\fR means the input handle is wanted; \fBTCL_WRITABLE\fR
 means the output handle is wanted.
-.AP ClientData *handlePtr out
+.AP void **handlePtr out
 Points to the location where the desired OS-specific handle should be
 stored.
-.AP int size in
+.AP Tcl_Size size in
 The size, in bytes, of buffers to allocate in this channel.
 .AP int mask in
 An OR-ed combination of \fBTCL_READABLE\fR, \fBTCL_WRITABLE\fR
@@ -157,9 +153,7 @@ Specific options list (space separated words, without
 .QW \- )
 to append to the standard generic options list.
 Can be NULL for generic options error message only.
-
 .BE
-
 .SH DESCRIPTION
 .PP
 Tcl uses a two-layered channel architecture. It provides a generic upper
@@ -213,7 +207,7 @@ call to \fBTcl_GetStdChannel\fR or a call to \fBTcl_SetStdChannel\fR
 closing this standard channel will cause the next call to
 \fBTcl_CreateChannel\fR to make the new channel the new standard
 channel too. See \fBTcl_StandardChannels\fR for a general treatise
-about standard channels and the behaviour of the Tcl library with
+about standard channels and the behavior of the Tcl library with
 regard to them.
 .PP
 \fBTcl_GetChannelInstanceData\fR returns the instance data associated with
@@ -245,6 +239,16 @@ events to the correct event queue even for a multi-threaded core.
 and \fBTCL_WRITABLE\fR, indicating whether the channel is open for input
 and output.
 .PP
+.VS TIP220
+.PP
+\fBTcl_RemoveChannelMode\fR removes an access privilege from the
+channel, either \fBTCL_READABLE\fR or \fBTCL_WRITABLE\fR, and returns
+a regular Tcl result code, \fBTCL_OK\fR, or \fBTCL_ERROR\fR. The
+function throws an error if either an invalid mode is specified or the
+result of the removal would be an inaccessible channel. In that case
+an error message is left in the interp argument, if not NULL.
+.VE TIP220
+.PP
 \fBTcl_GetChannelBufferSize\fR returns the size, in bytes, of buffers
 allocated to store input or output in \fIchannel\fR. If the value was not set
 by a previous call to \fBTcl_SetChannelBufferSize\fR, described below, then
@@ -252,8 +256,8 @@ the default value of 4096 is returned.
 .PP
 \fBTcl_SetChannelBufferSize\fR sets the size, in bytes, of buffers that
 will be allocated in subsequent operations on the channel to store input or
-output. The \fIsize\fR argument should be between ten and one million,
-allowing buffers of ten bytes to one million bytes. If \fIsize\fR is
+output. The \fIsize\fR argument should be between one and one million,
+allowing buffers of one byte to one million bytes. If \fIsize\fR is
 outside this range, \fBTcl_SetChannelBufferSize\fR sets the buffer size to
 4096.
 .PP
@@ -261,7 +265,8 @@ outside this range, \fBTcl_SetChannelBufferSize\fR sets the buffer size to
 the generic layer that the events specified by \fImask\fR have
 occurred on the channel.  Channel drivers are responsible for invoking
 this function whenever the channel handlers need to be called for the
-channel.  See \fBWATCHPROC\fR below for more details.
+channel (or other pending tasks like a write flush should be performed).
+See \fBWATCHPROC\fR below for more details.
 .PP
 \fBTcl_BadChannelOption\fR is called from driver specific
 \fIsetOptionProc\fR or \fIgetOptionProc\fR to generate a complete
@@ -288,20 +293,13 @@ name is registered in the (thread)-global list of all channels (result
 (thread)global list of all channels (of the current thread).
 Application to a channel still registered in some interpreter
 is not allowed.
-.VS 8.5
-Also notifies the driver if the \fBTcl_ChannelType\fR version is
-\fBTCL_CHANNEL_VERSION_4\fR (or higher), and
+Also notifies the driver if
 \fBTcl_DriverThreadActionProc\fR is defined for it.
-.VE 8.5
 .PP
 \fBTcl_SpliceChannel\fR adds the specified \fIchannel\fR to the
 (thread)global list of all channels (of the current thread).
 Application to a channel registered in some interpreter is not allowed.
-.VS 8.5
-Also notifies the driver if the \fBTcl_ChannelType\fR version is
-\fBTCL_CHANNEL_VERSION_4\fR (or higher), and
-\fBTcl_DriverThreadActionProc\fR is defined for it.
-.VE 8.5
+Also notifies the driver if \fBTcl_DriverThreadActionProc\fR is defined for it.
 .PP
 \fBTcl_ClearChannelHandlers\fR removes all channel handlers and event
 scripts associated with the specified \fIchannel\fR, thus shutting
@@ -316,14 +314,15 @@ channel drivers.  See the \fBOLD CHANNEL TYPES\fR section below for
 details about the old structure.
 .PP
 The \fBTcl_ChannelType\fR structure contains the following fields:
+.PP
 .CS
-typedef struct Tcl_ChannelType {
-        char *\fItypeName\fR;
+typedef struct {
+        const char *\fItypeName\fR;
         Tcl_ChannelTypeVersion \fIversion\fR;
-        Tcl_DriverCloseProc *\fIcloseProc\fR;
+        void *\fIcloseProc\fR; /* Not used any more*/
         Tcl_DriverInputProc *\fIinputProc\fR;
         Tcl_DriverOutputProc *\fIoutputProc\fR;
-        Tcl_DriverSeekProc *\fIseekProc\fR;
+        void *\fIseekProc\fR; /* Not used any more */
         Tcl_DriverSetOptionProc *\fIsetOptionProc\fR;
         Tcl_DriverGetOptionProc *\fIgetOptionProc\fR;
         Tcl_DriverWatchProc *\fIwatchProc\fR;
@@ -334,10 +333,8 @@ typedef struct Tcl_ChannelType {
         Tcl_DriverHandlerProc *\fIhandlerProc\fR;
         Tcl_DriverWideSeekProc *\fIwideSeekProc\fR;
         Tcl_DriverThreadActionProc *\fIthreadActionProc\fR;
-.VS 8.5
         Tcl_DriverTruncateProc *\fItruncateProc\fR;
-.VE 8.5
-} Tcl_ChannelType;
+} \fBTcl_ChannelType\fR;
 .CE
 .PP
 It is not necessary to provide implementations for all channel
@@ -354,13 +351,10 @@ The user should only use the above structure for \fBTcl_ChannelType\fR
 instantiation.  When referencing fields in a \fBTcl_ChannelType\fR
 structure, the following functions should be used to obtain the values:
 \fBTcl_ChannelName\fR, \fBTcl_ChannelVersion\fR,
-\fBTcl_ChannelBlockModeProc\fR, \fBTcl_ChannelCloseProc\fR,
-\fBTcl_ChannelClose2Proc\fR, \fBTcl_ChannelInputProc\fR,
-\fBTcl_ChannelOutputProc\fR, \fBTcl_ChannelSeekProc\fR,
+\fBTcl_ChannelBlockModeProc\fR, \fBTcl_ChannelClose2Proc\fR,
+\fBTcl_ChannelInputProc\fR, \fBTcl_ChannelOutputProc\fR,
 \fBTcl_ChannelWideSeekProc\fR, \fBTcl_ChannelThreadActionProc\fR,
-.VS 8.5
 \fBTcl_ChannelTruncateProc\fR,
-.VE 8.5
 \fBTcl_ChannelSetOptionProc\fR, \fBTcl_ChannelGetOptionProc\fR,
 \fBTcl_ChannelWatchProc\fR, \fBTcl_ChannelGetHandleProc\fR,
 \fBTcl_ChannelFlushProc\fR, or \fBTcl_ChannelHandlerProc\fR.
@@ -379,31 +373,10 @@ This value can be retrieved with \fBTcl_ChannelName\fR, which returns
 a pointer to the string.
 .SS VERSION
 .PP
-
 The \fIversion\fR field should be set to the version of the structure
-that you require. \fBTCL_CHANNEL_VERSION_2\fR is the minimum recommended.
-\fBTCL_CHANNEL_VERSION_3\fR must be set to specify the \fIwideSeekProc\fR member.
-\fBTCL_CHANNEL_VERSION_4\fR must be set to specify the \fIthreadActionProc\fR member
-(includes \fIwideSeekProc\fR).
-.VS 8.5
-\fBTCL_CHANNEL_VERSION_5\fR must be set to specify the
-\fItruncateProc\fR members (includes
-\fIwideSeekProc\fR and \fIthreadActionProc\fR).
-.VE 8.5
-If it is not set to any of these, then this
-\fBTcl_ChannelType\fR is assumed to have the original structure.  See
-\fBOLD CHANNEL TYPES\fR for more details.  While Tcl will recognize
-and function with either structures, stacked channels must be of at
-least \fBTCL_CHANNEL_VERSION_2\fR to function correctly.
-.PP
-This value can be retrieved with \fBTcl_ChannelVersion\fR, which returns
-one of
-.VS 8.5
-\fBTCL_CHANNEL_VERSION_5\fR,
-.VE 8.5
-\fBTCL_CHANNEL_VERSION_4\fR,
-\fBTCL_CHANNEL_VERSION_3\fR,
-\fBTCL_CHANNEL_VERSION_2\fR or \fBTCL_CHANNEL_VERSION_1\fR.
+that you require. \fBTCL_CHANNEL_VERSION_5\fR is the minimum supported.
+.PP
+This value can be retrieved with \fBTcl_ChannelVersion\fR.
 .SS BLOCKMODEPROC
 .PP
 The \fIblockModeProc\fR field contains the address of a function called by
@@ -411,8 +384,8 @@ the generic layer to set blocking and nonblocking mode on the device.
 \fIBlockModeProc\fR should match the following prototype:
 .PP
 .CS
-typedef int Tcl_DriverBlockModeProc(
-        ClientData \fIinstanceData\fR,
+typedef int \fBTcl_DriverBlockModeProc\fR(
+        void *\fIinstanceData\fR,
         int \fImode\fR);
 .CE
 .PP
@@ -439,22 +412,23 @@ blocking mode is acceptable to it, and should this also document for
 the user so that the blocking mode of the channel is not changed to an
 unacceptable value. Any confusion here may lead the interpreter into a
 (spurious and difficult to find) deadlock.
-.SS "CLOSEPROC AND CLOSE2PROC"
+.SS "CLOSE2PROC"
 .PP
-The \fIcloseProc\fR field contains the address of a function called by the
+The \fIclose2Proc\fR field contains the address of a function called by the
 generic layer to clean up driver-related information when the channel is
-closed. \fICloseProc\fR must match the following prototype:
+closed. \fIClose2Proc\fR must match the following prototype:
 .PP
 .CS
-typedef int Tcl_DriverCloseProc(
-        ClientData \fIinstanceData\fR,
-        Tcl_Interp *\fIinterp\fR);
+typedef int \fBTcl_DriverClose2Proc\fR(
+        void *\fIinstanceData\fR,
+        Tcl_Interp *\fIinterp\fR,
+        int \fIflags\fR);
 .CE
 .PP
-The \fIinstanceData\fR argument is the same as the value provided to
-\fBTcl_CreateChannel\fR when the channel was created. The function should
-release any storage maintained by the channel driver for this channel, and
-close the input and output devices encapsulated by this channel. All queued
+If \fIflags\fR is 0, the \fIinstanceData\fR argument is the same as the value
+provided to \fBTcl_CreateChannel\fR when the channel was created. The function
+should release any storage maintained by the channel driver for this channel,
+and close the input and output devices encapsulated by this channel. All queued
 output will have been flushed to the device before this function is called,
 and no further driver operations will be invoked on this instance after
 calling the \fIcloseProc\fR. If the close operation is successful, the
@@ -463,35 +437,20 @@ error code. In addition, if an error occurs and \fIinterp\fR is not NULL,
 the procedure should store an error message in the interpreter's result.
 .PP
 Alternatively, channels that support closing the read and write sides
-independently may set \fIcloseProc\fR to \fBTCL_CLOSE2PROC\fR and set
-\fIclose2Proc\fR to the address of a function that matches the
-following prototype:
-.PP
-.CS
-typedef int Tcl_DriverClose2Proc(
-        ClientData \fIinstanceData\fR,
-        Tcl_Interp *\fIinterp\fR,
-        int \fIflags\fR);
-.CE
-.PP
-The \fIclose2Proc\fR will be called with \fIflags\fR set to an OR'ed
+independently may accept other flag values than 0.
+Then \fIclose2Proc\fR will be called with \fIflags\fR set to an OR'ed
 combination of \fBTCL_CLOSE_READ\fR or \fBTCL_CLOSE_WRITE\fR to
 indicate that the driver should close the read and/or write side of
 the channel.  The channel driver may be invoked to perform
 additional operations on the channel after \fIclose2Proc\fR is
-called to close one or both sides of the channel.  If \fIflags\fR is
-\fB0\fR (zero), the driver should close the channel in the manner
-described above for \fIcloseProc\fR.  No further operations will be
-invoked on this instance after \fIclose2Proc\fR is called with all
-flags cleared.  In all cases, the \fIclose2Proc\fR function should
-return zero if the close operation was successful; otherwise it should
-return a nonzero POSIX error code. In addition, if an error occurs and
-\fIinterp\fR is not NULL, the procedure should store an error message
-in the interpreter's result.
-.PP
-The \fIcloseProc\fR and \fIclose2Proc\fR values can be retrieved with
-\fBTcl_ChannelCloseProc\fR or \fBTcl_ChannelClose2Proc\fR, which
-return a pointer to the respective function.
+called to close one or both sides of the channel.  In all cases, the
+\fIclose2Proc\fR function should return zero if the close operation was
+successful; otherwise it should return a nonzero POSIX error code.
+In addition, if an error occurs and \fIinterp\fR is not NULL, the procedure
+should store an error message in the interpreter's result.
+.PP
+The \fIclose2Proc\fR value can be retrieved with \fBTcl_ChannelClose2Proc\fR,
+which returns a pointer to the function.
 .SS INPUTPROC
 .PP
 The \fIinputProc\fR field contains the address of a function called by the
@@ -499,8 +458,8 @@ generic layer to read data from the file or device and store it in an
 internal buffer. \fIInputProc\fR must match the following prototype:
 .PP
 .CS
-typedef int Tcl_DriverInputProc(
-        ClientData \fIinstanceData\fR,
+typedef int \fBTcl_DriverInputProc\fR(
+        void *\fIinstanceData\fR,
         char *\fIbuf\fR,
         int \fIbufSize\fR,
         int *\fIerrorCodePtr\fR);
@@ -543,8 +502,8 @@ generic layer to transfer data from an internal buffer to the output device.
 \fIOutputProc\fR must match the following prototype:
 .PP
 .CS
-typedef int Tcl_DriverOutputProc(
-        ClientData \fIinstanceData\fR,
+typedef int \fBTcl_DriverOutputProc\fR(
+        void *\fIinstanceData\fR,
         const char *\fIbuf\fR,
         int \fItoWrite\fR,
         int *\fIerrorCodePtr\fR);
@@ -574,17 +533,17 @@ without writing any data.
 .PP
 This value can be retrieved with \fBTcl_ChannelOutputProc\fR, which returns
 a pointer to the function.
-.SS "SEEKPROC AND WIDESEEKPROC"
+.SS "WIDESEEKPROC"
 .PP
-The \fIseekProc\fR field contains the address of a function called by the
+The \fIwideSeekProc\fR field contains the address of a function called by the
 generic layer to move the access point at which subsequent input or output
-operations will be applied. \fISeekProc\fR must match the following
+operations will be applied. \fIWideSeekProc\fR must match the following
 prototype:
 .PP
 .CS
-typedef int Tcl_DriverSeekProc(
-        ClientData \fIinstanceData\fR,
-        long \fIoffset\fR,
+typedef long long \fBTcl_DriverWideSeekProc\fR(
+        void *\fIinstanceData\fR,
+        long long \fIoffset\fR,
         int \fIseekMode\fR,
         int *\fIerrorCodePtr\fR);
 .CE
@@ -603,30 +562,8 @@ does not implement seeking.
 The return value is the new access point or -1 in case of error. If an
 error occurred, the function should not move the access point.
 .PP
-If there is a non-NULL \fIseekProc\fR field, the \fIwideSeekProc\fR
-field may contain the address of an alternative function to use which
-handles wide (i.e. larger than 32-bit) offsets, so allowing seeks
-within files larger than 2GB.  The \fIwideSeekProc\fR will be called
-in preference to the \fIseekProc\fR, but both must be defined if the
-\fIwideSeekProc\fR is defined.  \fIWideSeekProc\fR must match the
-following prototype:
-.PP
-.CS
-typedef Tcl_WideInt Tcl_DriverWideSeekProc(
-        ClientData \fIinstanceData\fR,
-        Tcl_WideInt \fIoffset\fR,
-        int \fIseekMode\fR,
-        int *\fIerrorCodePtr\fR);
-.CE
-.PP
-The arguments and return values mean the same thing as with
-\fIseekProc\fR above, except that the type of offsets and the return
-type are different.
-.PP
-The \fIseekProc\fR value can be retrieved with
-\fBTcl_ChannelSeekProc\fR, which returns a pointer to the function,
-and similarly the \fIwideSeekProc\fR can be retrieved with
-\fBTcl_ChannelWideSeekProc\fR.
+The \fIwideSseekProc\fR value can be retrieved with
+\fBTcl_ChannelWideSeekProc\fR, which returns a pointer to the function.
 .SS SETOPTIONPROC
 .PP
 The \fIsetOptionProc\fR field contains the address of a function called by
@@ -634,8 +571,8 @@ the generic layer to set a channel type specific option on a channel.
 \fIsetOptionProc\fR must match the following prototype:
 .PP
 .CS
-typedef int Tcl_DriverSetOptionProc(
-        ClientData \fIinstanceData\fR,
+typedef int \fBTcl_DriverSetOptionProc\fR(
+        void *\fIinstanceData\fR,
         Tcl_Interp *\fIinterp\fR,
         const char *\fIoptionName\fR,
         const char *\fInewValue\fR);
@@ -652,17 +589,17 @@ called to set them, e.g. \fB\-blockmode\fR. Other options are specific to
 each channel type and the \fIsetOptionProc\fR procedure of the channel
 driver will get called to implement them. The \fIsetOptionProc\fR field can
 be NULL, which indicates that this channel type supports no type specific
-options. 
+options.
 .PP
 If the option value is successfully modified to the new value, the function
 returns \fBTCL_OK\fR.
 It should call \fBTcl_BadChannelOption\fR which itself returns
 \fBTCL_ERROR\fR if the \fIoptionName\fR is
-unrecognized. 
+unrecognized.
 If \fInewValue\fR specifies a value for the option that
 is not supported or if a system call error occurs,
-the function should leave an error message in the
-\fIresult\fR field of \fIinterp\fR if \fIinterp\fR is not NULL. The
+the function should leave an error message in the result
+of \fIinterp\fR if \fIinterp\fR is not NULL. The
 function should also call \fBTcl_SetErrno\fR to store an appropriate POSIX
 error code.
 .PP
@@ -675,8 +612,8 @@ the generic layer to get the value of a channel type specific option on a
 channel. \fIgetOptionProc\fR must match the following prototype:
 .PP
 .CS
-typedef int Tcl_DriverGetOptionProc(
-        ClientData \fIinstanceData\fR,
+typedef int \fBTcl_DriverGetOptionProc\fR(
+        void *\fIinstanceData\fR,
         Tcl_Interp *\fIinterp\fR,
         const char *\fIoptionName\fR,
         Tcl_DString *\fIoptionValue\fR);
@@ -687,7 +624,7 @@ channel. If the option name is not NULL, the function stores its current
 value, as a string, in the Tcl dynamic string \fIoptionValue\fR.
 If \fIoptionName\fR is NULL, the function stores in \fIoptionValue\fR an
 alternating list of all supported options and their current values.
-On success, the function returns \fBTCL_OK\fR. 
+On success, the function returns \fBTCL_OK\fR.
 It should call \fBTcl_BadChannelOption\fR which itself returns
 \fBTCL_ERROR\fR if the \fIoptionName\fR is
 unrecognized. If a system call error occurs,
@@ -713,8 +650,8 @@ notice events of interest on this channel.
 \fIWatchProc\fR should match the following prototype:
 .PP
 .CS
-typedef void Tcl_DriverWatchProc(
-        ClientData \fIinstanceData\fR,
+typedef void \fBTcl_DriverWatchProc\fR(
+        void *\fIinstanceData\fR,
         int \fImask\fR);
 .CE
 .PP
@@ -744,10 +681,10 @@ the generic layer to retrieve a device-specific handle from the channel.
 \fIGetHandleProc\fR should match the following prototype:
 .PP
 .CS
-typedef int Tcl_DriverGetHandleProc(
-        ClientData \fIinstanceData\fR,
+typedef int \fBTcl_DriverGetHandleProc\fR(
+        void *\fIinstanceData\fR,
         int \fIdirection\fR,
-        ClientData *\fIhandlePtr\fR);
+        void **\fIhandlePtr\fR);
 .CE
 .PP
 \fIInstanceData\fR is the same as the value passed to
@@ -773,8 +710,8 @@ It should be set to NULL.
 \fIFlushProc\fR should match the following prototype:
 .PP
 .CS
-typedef int Tcl_DriverFlushProc(
-        ClientData \fIinstanceData\fR);
+typedef int \fBTcl_DriverFlushProc\fR(
+        void *\fIinstanceData\fR);
 .CE
 .PP
 This value can be retrieved with \fBTcl_ChannelFlushProc\fR, which returns
@@ -788,8 +725,8 @@ that occur on the underlying (stacked) channel.
 \fIHandlerProc\fR should match the following prototype:
 .PP
 .CS
-typedef int Tcl_DriverHandlerProc(
-        ClientData \fIinstanceData\fR,
+typedef int \fBTcl_DriverHandlerProc\fR(
+        void *\fIinstanceData\fR,
         int \fIinterestMask\fR);
 .CE
 .PP
@@ -817,9 +754,9 @@ might be maintaining using the calling thread as the associate. See
 \fBTcl_CutChannel\fR and \fBTcl_SpliceChannel\fR for more detail.
 .PP
 .CS
-typedef void Tcl_DriverThreadActionProc(
-        ClientData \fIinstanceData\fR,
-        int        \fIaction\fR);
+typedef void \fBTcl_DriverThreadActionProc\fR(
+        void *\fIinstanceData\fR,
+        int \fIaction\fR);
 .CE
 .PP
 \fIInstanceData\fR is the same as the value passed to
@@ -834,9 +771,9 @@ called by the generic layer when a channel is truncated to some
 length. It can be NULL.
 .PP
 .CS
-typedef int Tcl_DriverTruncateProc(
-        ClientData \fIinstanceData\fR,
-        Tcl_WideInt \fIlength\fR);
+typedef int \fBTcl_DriverTruncateProc\fR(
+        void *\fIinstanceData\fR,
+        long long \fIlength\fR);
 .CE
 .PP
 \fIInstanceData\fR is the same as the value passed to
@@ -852,18 +789,18 @@ which returns a pointer to the function.
 This procedure generates a
 .QW "bad option"
 error message in an
-(optional) interpreter.  It is used by channel drivers when 
+(optional) interpreter.  It is used by channel drivers when
 an invalid Set/Get option is requested. Its purpose is to concatenate
 the generic options list to the specific ones and factorize
 the generic options error message string.
 .PP
 It always returns \fBTCL_ERROR\fR
 .PP
-An error message is generated in \fIinterp\fR's result object to
+An error message is generated in \fIinterp\fR's result value to
 indicate that a command was invoked with a bad option.
 The message has the form
 .CS
-    bad option "blah": should be one of 
+    bad option "blah": should be one of
     <...generic options...>+<...specific options...>
 .CE
 so you get for instance:
@@ -883,61 +820,7 @@ The function takes good care of inserting minus signs before
 each option, commas after, and an
 .QW or
 before the last option.
-.SH "OLD CHANNEL TYPES"
-The original (8.3.1 and below) \fBTcl_ChannelType\fR structure contains
-the following fields:
-.PP
-.CS
-typedef struct Tcl_ChannelType {
-        char *\fItypeName\fR;
-        Tcl_DriverBlockModeProc *\fIblockModeProc\fR;
-        Tcl_DriverCloseProc *\fIcloseProc\fR;
-        Tcl_DriverInputProc *\fIinputProc\fR;
-        Tcl_DriverOutputProc *\fIoutputProc\fR;
-        Tcl_DriverSeekProc *\fIseekProc\fR;
-        Tcl_DriverSetOptionProc *\fIsetOptionProc\fR;
-        Tcl_DriverGetOptionProc *\fIgetOptionProc\fR;
-        Tcl_DriverWatchProc *\fIwatchProc\fR;
-        Tcl_DriverGetHandleProc *\fIgetHandleProc\fR;
-        Tcl_DriverClose2Proc *\fIclose2Proc\fR;
-} Tcl_ChannelType;
-.CE
-.PP
-It is still possible to create channel with the above structure.  The
-internal channel code will determine the version.  It is imperative to use
-the new \fBTcl_ChannelType\fR structure if you are creating a stacked
-channel driver, due to problems with the earlier stacked channel
-implementation (in 8.2.0 to 8.3.1).
-.PP
-Prior to 8.4.0 (i.e. during the later releases of 8.3 and early part
-of the 8.4 development cycle) the \fBTcl_ChannelType\fR structure
-contained the following fields:
-.PP
-.CS
-typedef struct Tcl_ChannelType {
-        char *\fItypeName\fR;
-        Tcl_ChannelTypeVersion \fIversion\fR;
-        Tcl_DriverCloseProc *\fIcloseProc\fR;
-        Tcl_DriverInputProc *\fIinputProc\fR;
-        Tcl_DriverOutputProc *\fIoutputProc\fR;
-        Tcl_DriverSeekProc *\fIseekProc\fR;
-        Tcl_DriverSetOptionProc *\fIsetOptionProc\fR;
-        Tcl_DriverGetOptionProc *\fIgetOptionProc\fR;
-        Tcl_DriverWatchProc *\fIwatchProc\fR;
-        Tcl_DriverGetHandleProc *\fIgetHandleProc\fR;
-        Tcl_DriverClose2Proc *\fIclose2Proc\fR;
-        Tcl_DriverBlockModeProc *\fIblockModeProc\fR;
-        Tcl_DriverFlushProc *\fIflushProc\fR;
-        Tcl_DriverHandlerProc *\fIhandlerProc\fR;
-        Tcl_DriverTruncateProc *\fItruncateProc\fR;
-} Tcl_ChannelType;
-.CE
-.PP
-When the above structure is registered as a channel type, the
-\fIversion\fR field should always be \fBTCL_CHANNEL_VERSION_2\fR.
-
 .SH "SEE ALSO"
 Tcl_Close(3), Tcl_OpenFileChannel(3), Tcl_SetErrno(3), Tcl_QueueEvent(3), Tcl_StackChannel(3), Tcl_GetStdChannel(3)
-
 .SH KEYWORDS
 blocking, channel driver, channel registration, channel type, nonblocking
diff --git a/doc/CrtChnlHdlr.3 b/doc/CrtChnlHdlr.3
index affd7e2..cd817d1 100644
--- a/doc/CrtChnlHdlr.3
+++ b/doc/CrtChnlHdlr.3
@@ -12,15 +12,12 @@
 Tcl_CreateChannelHandler, Tcl_DeleteChannelHandler \- call a procedure when a channel becomes readable or writable
 .SH SYNOPSIS
 .nf
-.nf
 \fB#include <tcl.h>\fR
 .sp
-void
 \fBTcl_CreateChannelHandler\fR(\fIchannel, mask, proc, clientData\fR)
 .sp
-void
 \fBTcl_DeleteChannelHandler\fR(\fIchannel, proc, clientData\fR)
-.sp
+.fi
 .SH ARGUMENTS
 .AS Tcl_ChannelProc clientData
 .AP Tcl_Channel channel in
@@ -29,13 +26,12 @@ Tcl channel such as returned by \fBTcl_CreateChannel\fR.
 Conditions under which \fIproc\fR should be called: OR-ed combination of
 \fBTCL_READABLE\fR, \fBTCL_WRITABLE\fR and \fBTCL_EXCEPTION\fR. Specify
 a zero value to temporarily disable an existing handler.
-.AP Tcl_FileProc *proc in
+.AP Tcl_ChannelProc *proc in
 Procedure to invoke whenever the channel indicated by \fIchannel\fR meets
 the conditions specified by \fImask\fR.
-.AP ClientData clientData in
+.AP void *clientData in
 Arbitrary one-word value to pass to \fIproc\fR.
 .BE
-
 .SH DESCRIPTION
 .PP
 \fBTcl_CreateChannelHandler\fR arranges for \fIproc\fR to be called in the
@@ -46,9 +42,10 @@ invoked are specified by the \fImask\fR argument.
 See the manual entry for \fBfileevent\fR for a precise description of
 what it means for a channel to be readable or writable.
 \fIProc\fR must conform to the following prototype:
+.PP
 .CS
-typedef void Tcl_ChannelProc(
-        ClientData \fIclientData\fR,
+typedef void \fBTcl_ChannelProc\fR(
+        void *\fIclientData\fR,
         int \fImask\fR);
 .CE
 .PP
@@ -83,9 +80,7 @@ so that the channel is no longer readable when the second handler
 is invoked.
 For this reason it may be useful to use nonblocking I/O on channels
 for which there are event handlers.
-
 .SH "SEE ALSO"
-Notifier(3), Tcl_CreateChannel(3), Tcl_OpenFileChannel(3), vwait(n).
-
+Notifier(3), Tcl_CreateChannel(3), Tcl_OpenFileChannel(3), vwait(n)
 .SH KEYWORDS
-blocking, callback, channel, events, handler, nonblocking.
+blocking, callback, channel, events, handler, nonblocking
diff --git a/doc/CrtCloseHdlr.3 b/doc/CrtCloseHdlr.3
index 9406ece..cd59e8a 100644
--- a/doc/CrtCloseHdlr.3
+++ b/doc/CrtCloseHdlr.3
@@ -14,22 +14,19 @@ Tcl_CreateCloseHandler, Tcl_DeleteCloseHandler \- arrange for callbacks when cha
 .nf
 \fB#include <tcl.h>\fR
 .sp
-void
 \fBTcl_CreateCloseHandler\fR(\fIchannel, proc, clientData\fR)
 .sp
-void
 \fBTcl_DeleteCloseHandler\fR(\fIchannel, proc, clientData\fR)
-.sp
+.fi
 .SH ARGUMENTS
 .AS Tcl_CloseProc clientData
 .AP Tcl_Channel channel in
 The channel for which to create or delete a close callback.
 .AP Tcl_CloseProc *proc in
 The procedure to call as the callback.
-.AP ClientData clientData in
+.AP void *clientData in
 Arbitrary one-word value to pass to \fIproc\fR.
 .BE
-
 .SH DESCRIPTION
 .PP
 \fBTcl_CreateCloseHandler\fR arranges for \fIproc\fR to be called when
@@ -38,8 +35,8 @@ Arbitrary one-word value to pass to \fIproc\fR.
 \fIProc\fR should match the following prototype:
 .PP
 .CS
-typedef void Tcl_CloseProc(
-        ClientData \fIclientData\fR);
+typedef void \fBTcl_CloseProc\fR(
+        void *\fIclientData\fR);
 .CE
 .PP
 The \fIclientData\fR is the same as the value provided in the call to
@@ -50,9 +47,7 @@ The \fIproc\fR and \fIclientData\fR identify which close callback to
 remove; \fBTcl_DeleteCloseHandler\fR does nothing if its \fIproc\fR and
 \fIclientData\fR arguments do not match the \fIproc\fR and \fIclientData\fR
 for a  close handler for \fIchannel\fR.
-
 .SH "SEE ALSO"
 close(n), Tcl_Close(3), Tcl_UnregisterChannel(3)
-
 .SH KEYWORDS
 callback, channel closing
diff --git a/doc/CrtCommand.3 b/doc/CrtCommand.3
index 748ff2d..5d25667 100644
--- a/doc/CrtCommand.3
+++ b/doc/CrtCommand.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_CreateCommand 3 "" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -16,6 +16,7 @@ Tcl_CreateCommand \- implement new commands in C
 .sp
 Tcl_Command
 \fBTcl_CreateCommand\fR(\fIinterp, cmdName, proc, clientData, deleteProc\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_CmdDeleteProc *deleteProc
 .AP Tcl_Interp *interp in
@@ -25,14 +26,13 @@ Name of command.
 .AP Tcl_CmdProc *proc in
 Implementation of new command:  \fIproc\fR will be called whenever
 \fIcmdName\fR is invoked as a command.
-.AP ClientData clientData in
+.AP void *clientData in
 Arbitrary one-word value to pass to \fIproc\fR and \fIdeleteProc\fR.
 .AP Tcl_CmdDeleteProc *deleteProc in
 Procedure to call before \fIcmdName\fR is deleted from the interpreter;
 allows for command-specific cleanup.  If NULL, then no procedure is
 called before the command is deleted.
 .BE
-
 .SH DESCRIPTION
 .PP
 \fBTcl_CreateCommand\fR defines a new command in \fIinterp\fR and associates
@@ -42,20 +42,18 @@ will call \fIproc\fR to process the command.
 It differs from \fBTcl_CreateObjCommand\fR in that a new string-based
 command is defined;
 that is, a command procedure is defined that takes an array of
-argument strings instead of objects.
-The object-based command procedures registered by \fBTcl_CreateObjCommand\fR
+argument strings instead of values.
+The value-based command procedures registered by \fBTcl_CreateObjCommand\fR
 can execute significantly faster than the string-based command procedures
 defined by \fBTcl_CreateCommand\fR.
-This is because they take Tcl objects as arguments
-and those objects can retain an internal representation that
+This is because they take Tcl values as arguments
+and those values can retain an internal representation that
 can be manipulated more efficiently.
-Also, Tcl's interpreter now uses objects internally.
+Also, Tcl's interpreter now uses values internally.
 In order to invoke a string-based command procedure
 registered by \fBTcl_CreateCommand\fR,
 it must generate and fetch a string representation
-from each argument object before the call
-and create a new Tcl object to hold the string result returned by the
-string-based command procedure.
+from each argument value before the call.
 New commands should be defined using \fBTcl_CreateObjCommand\fR.
 We support \fBTcl_CreateCommand\fR for backwards compatibility.
 .PP
@@ -75,13 +73,15 @@ the process of being deleted, then it does not create a new command
 and it returns NULL.
 \fIProc\fR should have arguments and result that match the type
 \fBTcl_CmdProc\fR:
+.PP
 .CS
-typedef int Tcl_CmdProc(
-        ClientData \fIclientData\fR,
+typedef int \fBTcl_CmdProc\fR(
+        void *\fIclientData\fR,
         Tcl_Interp *\fIinterp\fR,
         int \fIargc\fR,
         const char *\fIargv\fR[]);
 .CE
+.PP
 When \fIproc\fR is invoked the \fIclientData\fR and \fIinterp\fR
 parameters will be copies of the \fIclientData\fR and \fIinterp\fR
 arguments given to \fBTcl_CreateCommand\fR.
@@ -92,20 +92,23 @@ the command, \fIargc\fR giving the number of arguments (including
 the command name) and \fIargv\fR giving the values of the arguments
 as strings.  The \fIargv\fR array will contain \fIargc\fR+1 values;
 the first \fIargc\fR values point to the argument strings, and the
-last value is NULL.  
+last value is NULL.
+.PP
 Note that the argument strings should not be modified as they may
 point to constant strings or may be shared with other parts of the
 interpreter.
-.PP
-Note that the argument strings are encoded in normalized UTF-8 since
+Note also that the argument strings are encoded in normalized UTF-8 since
 version 8.1 of Tcl.
 .PP
 \fIProc\fR must return an integer code that is expected to be one of
 \fBTCL_OK\fR, \fBTCL_ERROR\fR, \fBTCL_RETURN\fR, \fBTCL_BREAK\fR, or
-\fBTCL_CONTINUE\fR.  See the Tcl overview man page
-for details on what these codes mean.  Most normal commands will only
-return \fBTCL_OK\fR or \fBTCL_ERROR\fR.  In addition, \fIproc\fR must set
-the interpreter result to point to a string value;
+\fBTCL_CONTINUE\fR. See the \fBreturn\fR man page for details on
+what these codes mean and the use of extended values for an extension's
+private use. Most normal commands will only return \fBTCL_OK\fR
+or \fBTCL_ERROR\fR.
+.PP
+In addition, \fIproc\fR must set
+the interpreter result;
 in the case of a \fBTCL_OK\fR return code this gives the result
 of the command, and in the case of \fBTCL_ERROR\fR it gives an error message.
 The \fBTcl_SetResult\fR procedure provides an easy interface for setting
@@ -122,22 +125,23 @@ anywhere within the \fIargv\fR values.
 Call \fBTcl_SetResult\fR with status \fBTCL_VOLATILE\fR if you want
 to return something from the \fIargv\fR array.
 .PP
-\fIDeleteProc\fR will be invoked when (if) \fIcmdName\fR is deleted.
-This can occur through a call to \fBTcl_DeleteCommand\fR or \fBTcl_DeleteInterp\fR,
+\fIDeleteProc\fR will be invoked when (if) \fIcmdName\fR is deleted. This can
+occur through a call to \fBTcl_DeleteCommand\fR or \fBTcl_DeleteInterp\fR,
 or by replacing \fIcmdName\fR in another call to \fBTcl_CreateCommand\fR.
 \fIDeleteProc\fR is invoked before the command is deleted, and gives the
 application an opportunity to release any structures associated
 with the command.  \fIDeleteProc\fR should have arguments and
 result that match the type \fBTcl_CmdDeleteProc\fR:
+.PP
 .CS
-typedef void Tcl_CmdDeleteProc(
-        ClientData \fIclientData\fR);
+typedef void \fBTcl_CmdDeleteProc\fR(
+        void *\fIclientData\fR);
 .CE
+.PP
 The \fIclientData\fR argument will be the same as the \fIclientData\fR
 argument passed to \fBTcl_CreateCommand\fR.
-
 .SH "SEE ALSO"
-Tcl_CreateObjCommand, Tcl_DeleteCommand, Tcl_GetCommandInfo, Tcl_SetCommandInfo, Tcl_GetCommandName, Tcl_SetObjResult
-
+Tcl_CreateObjCommand, Tcl_DeleteCommand, Tcl_GetCommandInfo,
+Tcl_SetCommandInfo, Tcl_GetCommandName, Tcl_SetObjResult
 .SH KEYWORDS
 bind, command, create, delete, interpreter, namespace
diff --git a/doc/CrtFileHdlr.3 b/doc/CrtFileHdlr.3
index e35020c..65a6794 100644
--- a/doc/CrtFileHdlr.3
+++ b/doc/CrtFileHdlr.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_CreateFileHandler 3 8.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -17,6 +17,7 @@ Tcl_CreateFileHandler, Tcl_DeleteFileHandler \- associate procedure callbacks wi
 \fBTcl_CreateFileHandler\fR(\fIfd, mask, proc, clientData\fR)
 .sp
 \fBTcl_DeleteFileHandler\fR(\fIfd\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_FileProc clientData
 .AP int fd in
@@ -29,10 +30,9 @@ a handler.
 .AP Tcl_FileProc *proc in
 Procedure to invoke whenever the file or device indicated
 by \fIfile\fR meets the conditions specified by \fImask\fR.
-.AP ClientData clientData in
+.AP void *clientData in
 Arbitrary one-word value to pass to \fIproc\fR.
 .BE
-
 .SH DESCRIPTION
 .PP
 \fBTcl_CreateFileHandler\fR arranges for \fIproc\fR to be
@@ -49,11 +49,13 @@ as \fBvwait\fR.
 .PP
 \fIProc\fR should have arguments and result that match the
 type \fBTcl_FileProc\fR:
+.PP
 .CS
-typedef void Tcl_FileProc(
-        ClientData \fIclientData\fR,
+typedef void \fBTcl_FileProc\fR(
+        void *\fIclientData\fR,
         int \fImask\fR);
 .CE
+.PP
 The \fIclientData\fR parameter to \fIproc\fR is a copy
 of the \fIclientData\fR
 argument given to \fBTcl_CreateFileHandler\fR when the callback
@@ -64,7 +66,6 @@ of the requested conditions actually exists for the file;  it
 will contain a subset of the bits in the \fImask\fR argument
 to \fBTcl_CreateFileHandler\fR.
 .PP
-.PP
 There may exist only one handler for a given file at a given time.
 If \fBTcl_CreateFileHandler\fR is called when a handler already
 exists for \fIfd\fR, then the new callback replaces the information
@@ -84,7 +85,8 @@ complete the application will not be able to service other events. Use
 blocking or nonblocking mode as required.
 .PP
 Note that these interfaces are only supported by the Unix
-implementation of the Tcl notifier.   
-
+implementation of the Tcl notifier.
+.SH "SEE ALSO"
+fileevent(n), Tcl_CreateTimerHandler(3), Tcl_DoWhenIdle(3)
 .SH KEYWORDS
 callback, file, handler
diff --git a/doc/CrtInterp.3 b/doc/CrtInterp.3
index ab44fc6..159fb12 100644
--- a/doc/CrtInterp.3
+++ b/doc/CrtInterp.3
@@ -4,12 +4,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_CreateInterp 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_CreateInterp, Tcl_DeleteInterp, Tcl_InterpDeleted \- create and delete Tcl command interpreters
+Tcl_CreateInterp, Tcl_DeleteInterp, Tcl_InterpActive, Tcl_InterpDeleted \- create and delete Tcl command interpreters
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -21,30 +21,34 @@ Tcl_Interp *
 .sp
 int
 \fBTcl_InterpDeleted\fR(\fIinterp\fR)
+.sp
+int
+\fBTcl_InterpActive\fR(\fIinterp\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp *interp
 .AP Tcl_Interp *interp in
-Token for interpreter to be destroyed.
+Token for interpreter to be destroyed or queried.
 .BE
-
 .SH DESCRIPTION
 .PP
 \fBTcl_CreateInterp\fR creates a new interpreter structure and returns
-a token for it.  The token is required in calls to most other Tcl
+a token for it. The token is required in calls to most other Tcl
 procedures, such as \fBTcl_CreateCommand\fR, \fBTcl_Eval\fR, and
-\fBTcl_DeleteInterp\fR.
-Clients are only allowed to access a few of the fields of
-Tcl_Interp structures;  see the \fBTcl_Interp\fR
-and \fBTcl_CreateCommand\fR man pages for details.
+\fBTcl_DeleteInterp\fR.  The token returned by \fBTcl_CreateInterp\fR
+may only be passed to Tcl routines called from the same thread as
+the original \fBTcl_CreateInterp\fR call.  It is not safe for multiple
+threads to pass the same token to Tcl's routines.
 The new interpreter is initialized with the built-in Tcl commands
-and with the variables documented in tclvars(n).  To bind in
-additional commands, call \fBTcl_CreateCommand\fR.
+and with standard variables like \fBtcl_platform\fR and \fBenv\fR. To
+bind in additional commands, call \fBTcl_CreateCommand\fR, and to
+create additional variables, call \fBTcl_SetVar\fR.
 .PP
 \fBTcl_DeleteInterp\fR marks an interpreter as deleted; the interpreter
 will eventually be deleted when all calls to \fBTcl_Preserve\fR for it have
 been matched by calls to \fBTcl_Release\fR. At that time, all of the
 resources associated with it, including variables, procedures, and
-application-specific command bindings, will be deleted.  After
+application-specific command bindings, will be deleted. After
 \fBTcl_DeleteInterp\fR returns any attempt to use \fBTcl_Eval\fR on the
 interpreter will fail and return \fBTCL_ERROR\fR. After the call to
 \fBTcl_DeleteInterp\fR it is safe to examine the interpreter's result,
@@ -64,7 +68,13 @@ between when only the memory the callback is responsible for is being
 deleted and when the whole interpreter is being deleted. In the former case
 the callback may recreate the data being deleted, but this would lead to an
 infinite loop if the interpreter were being deleted.
-
+.PP
+\fBTcl_InterpActive\fR is useful for determining whether there is any
+execution of scripts ongoing in an interpreter, which is a useful piece of
+information when Tcl is embedded in a garbage-collected environment and it
+becomes necessary to determine whether the interpreter is a candidate for
+deletion. The function returns a true value if the interpreter has at least
+one active execution running inside it, and a false value otherwise.
 .SH "INTERPRETERS AND MEMORY MANAGEMENT"
 .PP
 \fBTcl_DeleteInterp\fR can be called at any time on an interpreter that may
@@ -84,14 +94,16 @@ the last call to \fBTcl_Preserve\fR is matched by a call to
 The rules for when the user of an interpreter must call \fBTcl_Preserve\fR
 and \fBTcl_Release\fR are simple:
 .TP
-Interpreters Passed As Arguments
+\fBInterpreters Passed As Arguments\fR
+.
 Functions that are passed an interpreter as an argument can safely use the
 interpreter without any special protection. Thus, when you write an
 extension consisting of new Tcl commands, no special code is needed to
 protect interpreters received as arguments. This covers the majority of all
 uses.
 .TP
-Interpreter Creation And Deletion
+\fBInterpreter Creation And Deletion\fR
+.
 When a new interpreter is created and used in a call to \fBTcl_Eval\fR,
 \fBTcl_VarEval\fR, \fBTcl_GlobalEval\fR, \fBTcl_SetVar\fR, or
 \fBTcl_GetVar\fR, a pair of calls to \fBTcl_Preserve\fR and
@@ -102,13 +114,16 @@ it is no longer needed, call \fBTcl_InterpDeleted\fR to test if some other
 code already called \fBTcl_DeleteInterp\fR; if not, call
 \fBTcl_DeleteInterp\fR before calling \fBTcl_Release\fR in your own code.
 .TP
-Retrieving An Interpreter From A Data Structure
+\fBRetrieving An Interpreter From A Data Structure\fR
+.
 When an interpreter is retrieved from a data structure (e.g. the client
-data of a callback) for use in \fBTcl_Eval\fR, \fBTcl_VarEval\fR,
-\fBTcl_GlobalEval\fR, \fBTcl_SetVar\fR, or \fBTcl_GetVar\fR, a pair of
+data of a callback) for use in one of the evaluation functions
+(\fBTcl_Eval\fR, \fBTcl_VarEval\fR, \fBTcl_GlobalEval\fR, \fBTcl_EvalObjv\fR,
+etc.) or variable access functions (\fBTcl_SetVar\fR, \fBTcl_GetVar\fR,
+\fBTcl_SetVar2Ex\fR, etc.), a pair of
 calls to \fBTcl_Preserve\fR and \fBTcl_Release\fR should be wrapped around
 all uses of the interpreter; it is unsafe to reuse the interpreter once
-\fBTcl_Release\fR has been called.  If an interpreter is stored inside a
+\fBTcl_Release\fR has been called. If an interpreter is stored inside a
 callback data structure, an appropriate deletion cleanup mechanism should
 be set up by the code that creates the data structure so that the
 interpreter is removed from the data structure (e.g. by setting the field
@@ -119,9 +134,12 @@ reused.
 All uses of interpreters in Tcl and Tk have already been protected.
 Extension writers should ensure that their code also properly protects any
 additional interpreters used, as described above.
-
+.PP
+Note that the protection mechanisms do not work well with conventional garbage
+collection systems. When in such a managed environment, \fBTcl_InterpActive\fR
+should be used to determine when an interpreter is a candidate for deletion
+due to inactivity.
 .SH "SEE ALSO"
 Tcl_Preserve(3), Tcl_Release(3)
-
 .SH KEYWORDS
 command, create, delete, interpreter
diff --git a/doc/CrtMathFnc.3 b/doc/CrtMathFnc.3
deleted file mode 100644
index 0f101d7..0000000
--- a/doc/CrtMathFnc.3
+++ /dev/null
@@ -1,156 +0,0 @@
-'\"
-'\" Copyright (c) 1989-1993 The Regents of the University of California.
-'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
-'\"
-'\" See the file "license.terms" for information on usage and redistribution
-'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-.TH Tcl_CreateMathFunc 3 8.4 Tcl "Tcl Library Procedures"
-.so man.macros
-.BS
-.SH NAME
-Tcl_CreateMathFunc, Tcl_GetMathFuncInfo, Tcl_ListMathFuncs \- Define, query and enumerate math functions for expressions
-.SH SYNOPSIS
-.nf
-\fB#include <tcl.h>\fR
-.sp
-void
-\fBTcl_CreateMathFunc\fR(\fIinterp, name, numArgs, argTypes, proc, clientData\fR)
-.sp
-int
-\fBTcl_GetMathFuncInfo\fR(\fIinterp, name, numArgsPtr, argTypesPtr, procPtr,
-                    clientDataPtr\fR)
-.sp
-Tcl_Obj *
-\fBTcl_ListMathFuncs\fR(\fIinterp, pattern\fR)
-.SH ARGUMENTS
-.AS Tcl_ValueType *clientDataPtr out
-.AP Tcl_Interp *interp in
-Interpreter in which new function will be defined.
-.AP "const char" *name in
-Name for new function.
-.AP int numArgs in
-Number of arguments to new function;  also gives size of \fIargTypes\fR array.
-.AP Tcl_ValueType *argTypes in
-Points to an array giving the permissible types for each argument to
-function.
-.AP Tcl_MathProc *proc in
-Procedure that implements the function.
-.AP ClientData clientData in
-Arbitrary one-word value to pass to \fIproc\fR when it is invoked.
-.AP int *numArgsPtr out
-Points to a variable that will be set to contain the number of
-arguments to the function.
-.AP Tcl_ValueType **argTypesPtr out
-Points to a variable that will be set to contain a pointer to an array
-giving the permissible types for each argument to the function which
-will need to be freed up using \fITcl_Free\fR.
-.AP Tcl_MathProc **procPtr out
-Points to a variable that will be set to contain a pointer to the
-implementation code for the function (or NULL if the function is
-implemented directly in bytecode).
-.AP ClientData *clientDataPtr out
-Points to a variable that will be set to contain the clientData
-argument passed to \fITcl_CreateMathFunc\fR when the function was
-created if the function is not implemented directly in bytecode.
-.AP "const char" *pattern in
-Pattern to match against function names so as to filter them (by
-passing to \fITcl_StringMatch\fR), or NULL to not apply any filter.
-.BE
-
-.SH DESCRIPTION
-.PP
-Tcl allows a number of mathematical functions to be used in
-expressions, such as \fBsin\fR, \fBcos\fR, and \fBhypot\fR.
-These functions are represented by commands in the namespace,
-\fBtcl::mathfunc\fR.  The \fBTcl_CreateMathFunc\fR function is
-an obsolete way for applications to add additional functions
-to those already provided by Tcl or to replace existing functions.
-It should not be used by new applications, which should create
-math functions using \fBTcl_CreateObjCommand\fR to create a command
-in the \fBtcl::mathfunc\fR namespace.
-.PP
-In the \fBTcl_CreateMathFunc\fR interface,
-\fIName\fR is the name of the function as it will appear in expressions.
-If \fIname\fR does not already exist in the \fB::tcl::mathfunc\fR
-namespace, then a new command is created in that namespace.
-If \fIname\fR does exist, then the existing function is replaced.
-\fINumArgs\fR and \fIargTypes\fR describe the arguments to the function.
-Each entry in the \fIargTypes\fR array must be
-one of \fBTCL_INT\fR, \fBTCL_DOUBLE\fR, \fBTCL_WIDE_INT\fR,
-or \fBTCL_EITHER\fR to indicate whether the corresponding argument must be an
-integer, a double-precision floating value, a wide (64-bit) integer,
-or any, respectively.
-.PP
-Whenever the function is invoked in an expression Tcl will invoke
-\fIproc\fR.  \fIProc\fR should have arguments and result that match
-the type \fBTcl_MathProc\fR:
-.CS
-typedef int Tcl_MathProc(
-        ClientData \fIclientData\fR,
-        Tcl_Interp *\fIinterp\fR,
-        Tcl_Value *\fIargs\fR,
-        Tcl_Value *\fIresultPtr\fR);
-.CE
-.PP
-When \fIproc\fR is invoked the \fIclientData\fR and \fIinterp\fR
-arguments will be the same as those passed to \fBTcl_CreateMathFunc\fR.
-\fIArgs\fR will point to an array of \fInumArgs\fR Tcl_Value structures,
-which describe the actual arguments to the function:
-.CS
-typedef struct Tcl_Value {
-        Tcl_ValueType \fItype\fR;
-        long \fIintValue\fR;
-        double \fIdoubleValue\fR;
-        Tcl_WideInt \fIwideValue\fR;
-} Tcl_Value;
-.CE
-.PP
-The \fItype\fR field indicates the type of the argument and is
-one of \fBTCL_INT\fR, \fBTCL_DOUBLE\fR or \fBTCL_WIDE_INT\fR.
-It will match the \fIargTypes\fR value specified for the function unless
-the \fIargTypes\fR value was \fBTCL_EITHER\fR. Tcl converts
-the argument supplied in the expression to the type requested in
-\fIargTypes\fR, if that is necessary.
-Depending on the value of the \fItype\fR field, the \fIintValue\fR,
-\fIdoubleValue\fR or \fIwideValue\fR
-field will contain the actual value of the argument.
-.PP
-\fIProc\fR should compute its result and store it either as an integer
-in \fIresultPtr->intValue\fR or as a floating value in
-\fIresultPtr->doubleValue\fR.
-It should set also \fIresultPtr->type\fR to one of
-\fBTCL_INT\fR, \fBTCL_DOUBLE\fR or \fBTCL_WIDE_INT\fR
-to indicate which value was set.
-Under normal circumstances \fIproc\fR should return \fBTCL_OK\fR.
-If an error occurs while executing the function, \fIproc\fR should
-return \fBTCL_ERROR\fR and leave an error message in the interpreter's result.
-.PP
-\fBTcl_GetMathFuncInfo\fR retrieves the values associated with
-function \fIname\fR that were passed to a preceding
-\fBTcl_CreateMathFunc\fR call.  Normally, the return code is
-\fBTCL_OK\fR but if the named function does not exist, \fBTCL_ERROR\fR
-is returned and an error message is placed in the interpreter's
-result.
-.PP
-If an error did not occur, the array reference placed in the variable
-pointed to by \fIargTypesPtr\fR is newly allocated, and should be
-released by passing it to \fBTcl_Free\fR.  Some functions (the
-standard set implemented in the core, and those defined by placing
-commands in the \fBtcl::mathfunc\fR namespace) do not have
-argument type information; attempting to retrieve values for
-them causes a NULL to be stored in the variable pointed to by 
-\fIprocPtr\fR and the variable pointed to by \fIclientDataPtr\fR
-will not be modified.  The variable pointed to by \fInumArgsPointer\fR
-will contain -1, and no argument types will be stored in the variable
-pointed to by \fIargTypesPointer\fR.
-.PP
-\fBTcl_ListMathFuncs\fR returns a Tcl object containing a list of all
-the math functions defined in the interpreter whose name matches
-\fIpattern\fR.  The returned object has a reference count of zero.
-
-.SH "SEE ALSO"
-expr(n), info(n), Tcl_CreateObjCommand(3), Tcl_Free(3), Tcl_NewListObj(3)
-
-.SH KEYWORDS
-expression, mathematical function
diff --git a/doc/CrtObjCmd.3 b/doc/CrtObjCmd.3
index 005bf97..b28d901 100644
--- a/doc/CrtObjCmd.3
+++ b/doc/CrtObjCmd.3
@@ -3,12 +3,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_CreateObjCommand 3 8.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_CreateObjCommand, Tcl_DeleteCommand, Tcl_DeleteCommandFromToken, Tcl_GetCommandInfo, Tcl_GetCommandInfoFromToken, Tcl_SetCommandInfo, Tcl_SetCommandInfoFromToken, Tcl_GetCommandName, Tcl_GetCommandFullName, Tcl_GetCommandFromObj \- implement new commands in C
+Tcl_CreateObjCommand, Tcl_CreateObjCommand2, Tcl_DeleteCommand, Tcl_DeleteCommandFromToken, Tcl_GetCommandInfo, Tcl_GetCommandInfoFromToken, Tcl_SetCommandInfo, Tcl_SetCommandInfoFromToken, Tcl_GetCommandName, Tcl_GetCommandFullName, Tcl_GetCommandFromObj \- implement new commands in C
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -16,6 +16,9 @@ Tcl_CreateObjCommand, Tcl_DeleteCommand, Tcl_DeleteCommandFromToken, Tcl_GetComm
 Tcl_Command
 \fBTcl_CreateObjCommand\fR(\fIinterp, cmdName, proc, clientData, deleteProc\fR)
 .sp
+Tcl_Command
+\fBTcl_CreateObjCommand2\fR(\fIinterp, cmdName, proc2, clientData, deleteProc\fR)
+.sp
 int
 \fBTcl_DeleteCommand\fR(\fIinterp, cmdName\fR)
 .sp
@@ -37,21 +40,24 @@ int
 const char *
 \fBTcl_GetCommandName\fR(\fIinterp, token\fR)
 .sp
-void
 \fBTcl_GetCommandFullName\fR(\fIinterp, token, objPtr\fR)
 .sp
 Tcl_Command
 \fBTcl_GetCommandFromObj\fR(\fIinterp, objPtr\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_CmdDeleteProc *deleteProc in/out
 .AP Tcl_Interp *interp in
 Interpreter in which to create a new command or that contains a command.
-.AP char *cmdName in
+.AP "const char" *cmdName in
 Name of command.
 .AP Tcl_ObjCmdProc *proc in
 Implementation of the new command: \fIproc\fR will be called whenever
 \fIcmdName\fR is invoked as a command.
-.AP ClientData clientData in
+.AP Tcl_ObjCmdProc2 *proc2 in
+Implementation of the new command: \fIproc2\fR will be called whenever
+\fIcmdName\fR is invoked as a command.
+.AP void *clientData in
 Arbitrary one-word value to pass to \fIproc\fR and \fIdeleteProc\fR.
 .AP Tcl_CmdDeleteProc *deleteProc in
 Procedure to call before \fIcmdName\fR is deleted from the interpreter;
@@ -64,7 +70,10 @@ The command must not have been deleted.
 Pointer to structure containing various information about a
 Tcl command.
 .AP Tcl_Obj *objPtr in
-Object containing the name of a Tcl command.
+Value containing the name of a Tcl command.
+.AP "const char" *typeName in
+Indicates the name of the type of command implementation associated
+with a particular \fIproc\fR, or NULL to break the association.
 .BE
 .SH DESCRIPTION
 .PP
@@ -88,22 +97,24 @@ the process of being deleted, then it does not create a new command
 and it returns NULL.
 \fIproc\fR should have arguments and result that match the type
 \fBTcl_ObjCmdProc\fR:
+.PP
 .CS
-typedef int Tcl_ObjCmdProc(
-        ClientData \fIclientData\fR,
+typedef int \fBTcl_ObjCmdProc\fR(
+        void *\fIclientData\fR,
         Tcl_Interp *\fIinterp\fR,
         int \fIobjc\fR,
         Tcl_Obj *const \fIobjv\fR[]);
 .CE
+.PP
 When \fIproc\fR is invoked, the \fIclientData\fR and \fIinterp\fR parameters
 will be copies of the \fIclientData\fR and \fIinterp\fR arguments given to
 \fBTcl_CreateObjCommand\fR.  Typically, \fIclientData\fR points to an
 application-specific data structure that describes what to do when the
 command procedure is invoked. \fIObjc\fR and \fIobjv\fR describe the
-arguments to the command, \fIobjc\fR giving the number of argument objects
+arguments to the command, \fIobjc\fR giving the number of argument values
 (including the command name) and \fIobjv\fR giving the values of the
 arguments.  The \fIobjv\fR array will contain \fIobjc\fR values, pointing to
-the argument objects.  Unlike \fIargv\fR[\fIargv\fR] used in a
+the argument values.  Unlike \fIargv\fR[\fIargv\fR] used in a
 string-based command procedure, \fIobjv\fR[\fIobjc\fR] will not contain NULL.
 .PP
 Additionally, when \fIproc\fR is invoked, it must not modify the contents
@@ -113,17 +124,18 @@ cause memory to be lost and the runtime stack to be corrupted.  The
 \fBconst\fR in the declaration of \fIobjv\fR will cause ANSI-compliant
 compilers to report any such attempted assignment as an error.  However,
 it is acceptable to modify the internal representation of any individual
-object argument.  For instance, the user may call
+value argument.  For instance, the user may call
 \fBTcl_GetIntFromObj\fR on \fIobjv\fR[\fB2\fR] to obtain the integer
-representation of that object; that call may change the type of the object
+representation of that value; that call may change the type of the value
 that \fIobjv\fR[\fB2\fR] points at, but will not change where
 \fIobjv\fR[\fB2\fR] points.
 .PP
 \fIproc\fR must return an integer code that is either \fBTCL_OK\fR,
 \fBTCL_ERROR\fR, \fBTCL_RETURN\fR, \fBTCL_BREAK\fR, or \fBTCL_CONTINUE\fR.
-See the Tcl overview man page
-for details on what these codes mean.  Most normal commands will only
-return \fBTCL_OK\fR or \fBTCL_ERROR\fR.
+See the \fBreturn\fR man page for details on what these codes mean and the
+use of extended values for an extension's private use. Most normal commands
+will only return \fBTCL_OK\fR or \fBTCL_ERROR\fR.
+.PP
 In addition, if \fIproc\fR needs to return a non-empty result,
 it can call \fBTcl_SetObjResult\fR to set the interpreter's result.
 In the case of a \fBTCL_OK\fR return code this gives the result
@@ -131,7 +143,7 @@ of the command,
 and in the case of \fBTCL_ERROR\fR this gives an error message.
 Before invoking a command procedure,
 \fBTcl_EvalObjEx\fR sets interpreter's result to
-point to an object representing an empty string, so simple
+point to a value representing an empty string, so simple
 commands can return an empty result by doing nothing at all.
 .PP
 The contents of the \fIobjv\fR array belong to Tcl and are not
@@ -148,7 +160,7 @@ However, if the existing command was created by a previous call to
 but instead arranges for the Tcl interpreter to call the
 \fBTcl_ObjCmdProc\fR \fIproc\fR in the future.
 The old string-based \fBTcl_CmdProc\fR associated with the command
-is retained and its address can be obtained by subsequent 
+is retained and its address can be obtained by subsequent
 \fBTcl_GetCommandInfo\fR calls. This is done for backwards compatibility.
 .PP
 \fIDeleteProc\fR will be invoked when (if) \fIname\fR is deleted.
@@ -159,13 +171,26 @@ or by replacing \fIname\fR in another call to \fBTcl_CreateObjCommand\fR.
 application an opportunity to release any structures associated
 with the command.  \fIDeleteProc\fR should have arguments and
 result that match the type \fBTcl_CmdDeleteProc\fR:
+.PP
 .CS
-typedef void Tcl_CmdDeleteProc(
-        ClientData \fIclientData\fR);
+typedef void \fBTcl_CmdDeleteProc\fR(
+        void *\fIclientData\fR);
 .CE
+.PP
 The \fIclientData\fR argument will be the same as the \fIclientData\fR
 argument passed to \fBTcl_CreateObjCommand\fR.
 .PP
+\fBTcl_CreateObjCommand2\fR does the same as \fBTcl_CreateObjCommand\fR,
+except its \fIproc2\fR argument is of type \fBTcl_ObjCmdProc2\fR.
+.PP
+.CS
+typedef int \fBTcl_ObjCmdProc2\fR(
+        void *\fIclientData\fR,
+        Tcl_Interp *\fIinterp\fR,
+        Tcl_Size \fIobjc\fR,
+        Tcl_Obj *const \fIobjv\fR[]);
+.CE
+.PP
 \fBTcl_DeleteCommand\fR deletes a command from a command interpreter.
 Once the call completes, attempts to invoke \fIcmdName\fR in
 \fIinterp\fR will result in errors.
@@ -197,29 +222,36 @@ Otherwise it places information about the command
 in the \fBTcl_CmdInfo\fR structure
 pointed to by \fIinfoPtr\fR and returns 1.
 A \fBTcl_CmdInfo\fR structure has the following fields:
+.PP
 .CS
-typedef struct Tcl_CmdInfo {
+typedef struct {
     int \fIisNativeObjectProc\fR;
     Tcl_ObjCmdProc *\fIobjProc\fR;
-    ClientData \fIobjClientData\fR;
+    void *\fIobjClientData\fR;
     Tcl_CmdProc *\fIproc\fR;
-    ClientData \fIclientData\fR;
+    void *\fIclientData\fR;
     Tcl_CmdDeleteProc *\fIdeleteProc\fR;
-    ClientData \fIdeleteData\fR;
+    void *\fIdeleteData\fR;
     Tcl_Namespace *\fInamespacePtr\fR;
-} Tcl_CmdInfo;
+    Tcl_ObjCmdProc2 *\fIobjProc2\fR;
+    void *\fIobjClientData2\fR;
+} \fBTcl_CmdInfo\fR;
 .CE
-The \fIisNativeObjectProc\fR field has the value 1
-if \fBTcl_CreateObjCommand\fR was called to register the command;
-it is 0 if only \fBTcl_CreateCommand\fR was called.
+.PP
+The \fIisNativeObjectProc\fR field has the value 2 if
+\fBTcl_CreateObjCommand2\fR was called to register the command;
+it has the value 1 if \fBTcl_CreateObjCommand\fR was called to
+register the command; it is 0 if only \fBTcl_CreateCommand\fR was called.
 It allows a program to determine whether it is faster to
-call \fIobjProc\fR or \fIproc\fR:
-\fIobjProc\fR is normally faster
+call \fIobjProc2\fR, \fIobjProc\fR or \fIproc\fR:
+\fIobjProc2\fR/\fIobjProc\fR is normally faster
+if \fIisNativeObjectProc\fR has the value 2;
+\fIobjProc\fR/\fIobjProc\fR is normally faster
 if \fIisNativeObjectProc\fR has the value 1.
 The fields \fIobjProc\fR and \fIobjClientData\fR
 have the same meaning as the \fIproc\fR and \fIclientData\fR
 arguments to \fBTcl_CreateObjCommand\fR;
-they hold information about the object-based command procedure
+they hold information about the value-based command procedure
 that the Tcl interpreter calls to implement the command.
 The fields \fIproc\fR and \fIclientData\fR
 hold information about the string-based command procedure
@@ -229,8 +261,8 @@ this is the procedure passed to it;
 otherwise, this is a compatibility procedure
 registered by \fBTcl_CreateObjCommand\fR
 that simply calls the command's
-object-based procedure after converting its string arguments to Tcl objects.
-The field \fIdeleteData\fR is the ClientData value
+value-based procedure after converting its string arguments to Tcl values.
+The field \fIdeleteData\fR is the clientData value
 to pass to \fIdeleteProc\fR;  it is normally the same as
 \fIclientData\fR but may be set independently using the
 \fBTcl_SetCommandInfo\fR procedure.
@@ -244,7 +276,7 @@ from \fBTcl_CreateObjCommand\fR in place of the command name.  If the
 and fills in the structure designated by \fIinfoPtr\fR.
 .PP
 \fBTcl_SetCommandInfo\fR is used to modify the procedures and
-ClientData values associated with a command.
+clientData values associated with a command.
 Its \fIcmdName\fR argument is the name of a command in \fIinterp\fR.
 \fIcmdName\fR may include \fB::\fR namespace qualifiers
 to identify a command in a particular namespace.
@@ -260,11 +292,10 @@ copies the information from \fI*infoPtr\fR to Tcl's internal structure
 for the command and returns 1.
 .PP
 Note that \fBTcl_SetCommandInfo\fR and
-\fBTcl_SetCommandInfoFromToken\fR both allow the ClientData for a
+\fBTcl_SetCommandInfoFromToken\fR both allow the clientData for a
 command's deletion procedure to be given a different value than the
-ClientData for its command procedure.
-.PP
-Note that neither \fBTcl_SetCommandInfo\fR nor
+clientData for its command procedure.
+Note also that neither \fBTcl_SetCommandInfo\fR nor
 \fBTcl_SetCommandInfoFromToken\fR will change a command's namespace.
 Use \fBTcl_Eval\fR to call the \fBrename\fR command to do that.
 .PP
@@ -282,16 +313,31 @@ command is not deleted or renamed;  callers should copy the string if
 they need to keep it for a long time.
 .PP
 \fBTcl_GetCommandFullName\fR produces the fully qualified name
-of a command from a command token.  
+of a command from a command token.
 The name, including all namespace prefixes,
-is appended to the object specified by \fIobjPtr\fR.
+is appended to the value specified by \fIobjPtr\fR.
 .PP
 \fBTcl_GetCommandFromObj\fR returns a token for the command
 specified by the name in a \fBTcl_Obj\fR.
 The command name is resolved relative to the current namespace.
 Returns NULL if the command is not found.
+.PP
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+When the \fIproc\fR passed to \fBTcl_CreateObjCommand\fR is called,
+the values in its \fIobjv\fR argument will have a reference count of
+at least 1, with that guaranteed reference being from the Tcl
+evaluation stack. You should not call \fBTcl_DecrRefCount\fR on any of
+those values unless you call \fBTcl_IncrRefCount\fR on them first.
+Also, when the \fIproc\fR is called, the interpreter result is
+guaranteed to be an empty string value with a reference count of 1.
+.PP
+\fBTcl_GetCommandFullName\fR does not modify the reference count of its
+\fIobjPtr\fR argument, but does require that the object be unshared.
+.PP
+\fBTcl_GetCommandFromObj\fR does not modify the reference count of its
+\fIobjPtr\fR argument; it only reads.
 .SH "SEE ALSO"
-Tcl_CreateCommand, Tcl_ResetResult, Tcl_SetObjResult
-
+Tcl_CreateCommand(3), Tcl_ResetResult(3), Tcl_SetObjResult(3)
 .SH KEYWORDS
-bind, command, create, delete, namespace, object
+bind, command, create, delete, namespace, value
diff --git a/doc/CrtTimerHdlr.3 b/doc/CrtTimerHdlr.3
index 39702b1..eeeea77 100644
--- a/doc/CrtTimerHdlr.3
+++ b/doc/CrtTimerHdlr.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_CreateTimerHandler 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -18,19 +18,19 @@ Tcl_TimerToken
 \fBTcl_CreateTimerHandler\fR(\fImilliseconds, proc, clientData\fR)
 .sp
 \fBTcl_DeleteTimerHandler\fR(\fItoken\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_TimerToken milliseconds
 .AP int milliseconds  in
 How many milliseconds to wait before invoking \fIproc\fR.
 .AP Tcl_TimerProc *proc in
 Procedure to invoke after \fImilliseconds\fR have elapsed.
-.AP ClientData clientData in
+.AP void *clientData in
 Arbitrary one-word value to pass to \fIproc\fR.
 .AP Tcl_TimerToken token in
 Token for previously created timer handler (the return value
 from some previous call to \fBTcl_CreateTimerHandler\fR).
 .BE
-
 .SH DESCRIPTION
 .PP
 \fBTcl_CreateTimerHandler\fR arranges for \fIproc\fR to be
@@ -49,9 +49,12 @@ are other pending events to process before the call to
 .PP
 \fIProc\fR should have arguments and return value that match
 the type \fBTcl_TimerProc\fR:
+.PP
 .CS
-typedef void Tcl_TimerProc(ClientData \fIclientData\fR);
+typedef void \fBTcl_TimerProc\fR(
+        void *\fIclientData\fR);
 .CE
+.PP
 The \fIclientData\fR parameter to \fIproc\fR is a
 copy of the \fIclientData\fR argument given to
 \fBTcl_CreateTimerHandler\fR when the callback
@@ -68,6 +71,7 @@ has been invoked then \fBTcl_DeleteTimerHandler\fR does nothing.
 The tokens returned by \fBTcl_CreateTimerHandler\fR never have
 a value of NULL, so if NULL is passed to \fBTcl_DeleteTimerHandler\fR
 then the procedure does nothing.
-
+.SH "SEE ALSO"
+after(n), Tcl_CreateFileHandler(3), Tcl_DoWhenIdle(3)
 .SH KEYWORDS
 callback, clock, handler, timer
diff --git a/doc/CrtTrace.3 b/doc/CrtTrace.3
index ec83c91..8e4b92f 100644
--- a/doc/CrtTrace.3
+++ b/doc/CrtTrace.3
@@ -1,16 +1,16 @@
 '\"
 '\" Copyright (c) 1989-1993 The Regents of the University of California.
 '\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
-'\" Copyright (c) 2002 by Kevin B. Kenny <kennykb@acm.org>.  All rights reserved.
+'\" Copyright (c) 2002 Kevin B. Kenny <kennykb@acm.org>.  All rights reserved.
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_CreateTrace 3 "" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_CreateTrace, Tcl_CreateObjTrace, Tcl_DeleteTrace \- arrange for command execution to be traced
+Tcl_CreateTrace, Tcl_CreateObjTrace, Tcl_CreateObjTrace2, Tcl_DeleteTrace \- arrange for command execution to be traced
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -21,12 +21,16 @@ Tcl_Trace
 Tcl_Trace
 \fBTcl_CreateObjTrace\fR(\fIinterp, level, flags, objProc, clientData, deleteProc\fR)
 .sp
+Tcl_Trace
+\fBTcl_CreateObjTrace2\fR(\fIinterp, level, flags, objProc2, clientData, deleteProc\fR)
+.sp
 \fBTcl_DeleteTrace\fR(\fIinterp, trace\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_CmdObjTraceDeleteProc *deleteProc
 .AP Tcl_Interp *interp in
 Interpreter containing command to be traced or untraced.
-.AP int level in
+.AP Tcl_Size level in
 Only commands at or below this nesting level will be traced unless
 0 is specified.  1 means
 top-level commands only, 2 means top-level commands or those that are
@@ -38,11 +42,14 @@ Flags governing the trace execution.  See below for details.
 .AP Tcl_CmdObjTraceProc *objProc in
 Procedure to call for each command that is executed.  See below for
 details of the calling sequence.
+.AP Tcl_CmdObjTraceProc2 *objProc2 in
+Procedure to call for each command that is executed.  See below for
+details of the calling sequence.
 .AP Tcl_CmdTraceProc *proc in
 Procedure to call for each command that is executed.  See below for
 details on the calling sequence.
-.AP ClientData clientData in
-Arbitrary one-word value to pass to \fIobjProc\fR or \fIproc\fR.
+.AP void *clientData in
+Arbitrary one-word value to pass to \fIobjProc\fR, \fIobjProc2\fR or \fIproc\fR.
 .AP Tcl_CmdObjTraceDeleteProc *deleteProc in
 Procedure to call when the trace is deleted.  See below for details of
 the calling sequence.  A NULL pointer is permissible and results in no
@@ -63,19 +70,35 @@ interpreter.
 .PP
 \fIobjProc\fR should have arguments and result that match the type,
 \fBTcl_CmdObjTraceProc\fR:
+.PP
 .CS
-typedef int \fBTcl_CmdObjTraceProc\fR( 
-        \fBClientData\fR \fIclientData\fR,
+typedef int \fBTcl_CmdObjTraceProc\fR(
+        \fBvoid *\fR \fIclientData\fR,
         \fBTcl_Interp\fR* \fIinterp\fR,
         int \fIlevel\fR,
         const char *\fIcommand\fR,
         \fBTcl_Command\fR \fIcommandToken\fR,
         int \fIobjc\fR,
-        \fBTcl_Obj\fR *const \fIobjv\fR[] );
+        \fBTcl_Obj\fR *const \fIobjv\fR[]);
 .CE
+.PP
+\fIobjProc2\fR should have arguments and result that match the type,
+\fBTcl_CmdObjTraceProc2\fR:
+.PP
+.CS
+typedef int \fBTcl_CmdObjTraceProc2\fR(
+        \fBvoid *\fR \fIclientData\fR,
+        \fBTcl_Interp\fR* \fIinterp\fR,
+        Tcl_Size \fIlevel\fR,
+        const char *\fIcommand\fR,
+        \fBTcl_Command\fR \fIcommandToken\fR,
+        Tcl_Size \fIobjc\fR,
+        \fBTcl_Obj\fR *const \fIobjv\fR[]);
+.CE
+.PP
 The \fIclientData\fR and \fIinterp\fR parameters are copies of the
 corresponding arguments given to \fBTcl_CreateTrace\fR.
-\fIClientData\fR typically points to an application-specific data
+\fIclientData\fR typically points to an application-specific data
 structure that describes what to do when \fIobjProc\fR is invoked.  The
 \fIlevel\fR parameter gives the nesting level of the command (1 for
 top-level commands passed to \fBTcl_Eval\fR by the application, 2 for
@@ -97,11 +120,7 @@ the Tcl interpreter will invoke the command.  Any other return code
 is treated as if the command returned that status, and the command is
 \fInot\fR invoked.
 .PP
-The \fIobjProc\fR callback must not modify \fIobjv\fR in any way.  It
-is, however, permissible to change the command by calling
-\fBTcl_SetCommandTokenInfo\fR prior to returning.  Any such change
-takes effect immediately, and the command is invoked with the new
-information.
+The \fIobjProc\fR callback must not modify \fIobjv\fR in any way.
 .PP
 Tracing will only occur for commands at nesting level less than
 or equal to the \fIlevel\fR parameter (i.e. the \fIlevel\fR
@@ -139,10 +158,12 @@ When \fBTcl_DeleteTrace\fR is called, the interpreter invokes the
 \fIdeleteProc\fR that was passed as a parameter to
 \fBTcl_CreateObjTrace\fR.  The \fIdeleteProc\fR must match the type,
 \fBTcl_CmdObjTraceDeleteProc\fR:
+.PP
 .CS
-typedef void \fBTcl_CmdObjTraceDeleteProc\fR( 
-        \fBClientData\fR \fIclientData\fR);
+typedef void \fBTcl_CmdObjTraceDeleteProc\fR(
+        \fBvoid *\fR \fIclientData\fR);
 .CE
+.PP
 The \fIclientData\fR parameter will be the same as the
 \fIclientData\fR parameter that was originally passed to
 \fBTcl_CreateObjTrace\fR.
@@ -153,17 +174,19 @@ compatibility with code that was developed for older versions of the
 Tcl interpreter.  It is similar to \fBTcl_CreateObjTrace\fR, except
 that its \fIproc\fR parameter should have arguments and result that
 match the type \fBTcl_CmdTraceProc\fR:
+.PP
 .CS
-typedef void Tcl_CmdTraceProc(
-        ClientData \fIclientData\fR,
+typedef void \fBTcl_CmdTraceProc\fR(
+        void *\fIclientData\fR,
         Tcl_Interp *\fIinterp\fR,
         int \fIlevel\fR,
         char *\fIcommand\fR,
         Tcl_CmdProc *\fIcmdProc\fR,
-        ClientData \fIcmdClientData\fR,
+        void *\fIcmdClientData\fR,
         int \fIargc\fR,
         const char *\fIargv\fR[]);
 .CE
+.PP
 The parameters to the \fIproc\fR callback are similar to those of the
 \fIobjProc\fR callback above. The \fIcommandToken\fR is
 replaced with \fIcmdProc\fR, a pointer to the (string-based) command
@@ -181,5 +204,14 @@ There is no way to be notified when the trace created by
 \fBTcl_CreateTrace\fR is deleted.  There is no way for the \fIproc\fR
 associated with a call to \fBTcl_CreateTrace\fR to abort execution of
 \fIcommand\fR.
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+When the \fIproc\fR passed to \fBTcl_CreateObjTrace\fR is called,
+the values in its \fIobjv\fR argument will have a reference count of
+at least 1, with that guaranteed reference being from the Tcl
+evaluation stack. You should not call \fBTcl_DecrRefCount\fR on any of
+those values unless you call \fBTcl_IncrRefCount\fR on them first.
+.SH "SEE ALSO"
+trace(n)
 .SH KEYWORDS
 command, create, delete, interpreter, trace
diff --git a/doc/DString.3 b/doc/DString.3
index 0e571d2..7265898 100644
--- a/doc/DString.3
+++ b/doc/DString.3
@@ -4,12 +4,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_DString 3 7.4 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_DStringInit, Tcl_DStringAppend, Tcl_DStringAppendElement, Tcl_DStringStartSublist, Tcl_DStringEndSublist, Tcl_DStringLength, Tcl_DStringValue, Tcl_DStringSetLength, Tcl_DStringTrunc, Tcl_DStringFree, Tcl_DStringResult, Tcl_DStringGetResult \- manipulate dynamic strings
+Tcl_DStringInit, Tcl_DStringAppend, Tcl_DStringAppendElement, Tcl_DStringStartSublist, Tcl_DStringEndSublist, Tcl_DStringLength, Tcl_DStringValue, Tcl_DStringSetLength, Tcl_DStringFree, Tcl_DStringResult, Tcl_DStringGetResult, Tcl_DStringToObj \- manipulate dynamic strings
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -26,7 +26,7 @@ char *
 .sp
 \fBTcl_DStringEndSublist\fR(\fIdsPtr\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_DStringLength\fR(\fIdsPtr\fR)
 .sp
 char *
@@ -34,13 +34,16 @@ char *
 .sp
 \fBTcl_DStringSetLength\fR(\fIdsPtr, newLength\fR)
 .sp
-\fBTcl_DStringTrunc\fR(\fIdsPtr, newLength\fR)
-.sp
 \fBTcl_DStringFree\fR(\fIdsPtr\fR)
 .sp
 \fBTcl_DStringResult\fR(\fIinterp, dsPtr\fR)
 .sp
 \fBTcl_DStringGetResult\fR(\fIinterp, dsPtr\fR)
+.sp
+Tcl_Obj *
+\fBTcl_DStringToObj\fR(\fIdsPtr\fR)
+.fi
+.sp
 .SH ARGUMENTS
 .AS Tcl_DString newLength in/out
 .AP Tcl_DString *dsPtr in/out
@@ -49,10 +52,10 @@ Pointer to structure that is used to manage a dynamic string.
 Pointer to characters to append to dynamic string.
 .AP "const char" *element in
 Pointer to characters to append as list element to dynamic string.
-.AP int length in
-Number of bytes from \fIbytes\fR to add to dynamic string.  If -1,
+.AP Tcl_Size length in
+Number of bytes from \fIbytes\fR to add to dynamic string.  If negative,
 add all characters up to null terminating character.
-.AP int newLength in
+.AP Tcl_Size newLength in
 New length for dynamic string, not including null terminating
 character.
 .AP Tcl_Interp *interp in/out
@@ -128,10 +131,6 @@ caller to fill in the new space.
 even if the string is truncated to zero length, so \fBTcl_DStringFree\fR
 will still need to be called.
 .PP
-\fBTcl_DStringTrunc\fR changes the length of a dynamic string.
-This procedure is now deprecated.  \fBTcl_DStringSetLength\fR  should
-be used instead.
-.PP
 \fBTcl_DStringFree\fR should be called when you are finished using
 the string.  It frees up any memory that was allocated for the string
 and reinitializes the string's value to an empty string.
@@ -142,12 +141,26 @@ a pointer from \fIdsPtr\fR to the interpreter's result.
 This saves the cost of allocating new memory and copying the string.
 \fBTcl_DStringResult\fR also reinitializes the dynamic string to
 an empty string.
+Since the dynamic string is reinitialized, there is no need to
+further call \fBTcl_DStringFree\fR on it and it can be reused without
+calling \fBTcl_DStringInit\fR. The caller must ensure that the dynamic
+string stored in \fIdsPtr\fR is encoded in Tcl's internal UTF-8 format.
 .PP
 \fBTcl_DStringGetResult\fR does the opposite of \fBTcl_DStringResult\fR.
 It sets the value of \fIdsPtr\fR to the result of \fIinterp\fR and
 it clears \fIinterp\fR's result.
 If possible it does this by moving a pointer rather than by copying
 the string.
+.PP
+\fBTcl_DStringToObj\fR returns a \fBTcl_Obj\fR containing the value of the
+dynamic string given by \fIdsPtr\fR. It does this by moving a pointer from
+\fIdsPtr\fR to a newly allocated \fBTcl_Obj\fR and reinitializing to dynamic
+string to an empty string. This saves the cost of allocating new memory and
+copying the string. Since the dynamic string is reinitialized, there is no need
+to further call \fBTcl_DStringFree\fR on it and it can be reused without calling
+\fBTcl_DStringInit\fR. The returned \fBTcl_Obj\fR has a reference count of 0.
+The caller must ensure that the dynamic string stored in \fIdsPtr\fR is encoded
+in Tcl's internal UTF-8 format.
 
 .SH KEYWORDS
 append, dynamic string, free, result
diff --git a/doc/DetachPids.3 b/doc/DetachPids.3
index 39a51d3..4d87529 100644
--- a/doc/DetachPids.3
+++ b/doc/DetachPids.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_DetachPids 3 "" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -20,9 +20,10 @@ Tcl_DetachPids, Tcl_ReapDetachedProcs, Tcl_WaitPid \- manage child processes in
 .sp
 Tcl_Pid
 \fBTcl_WaitPid\fR(\fIpid, statusPtr, options\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Pid *statusPtr out
-.AP int numPids in
+.AP Tcl_Size numPids in
 Number of process ids contained in the array pointed to by \fIpidPtr\fR.
 .AP int *pidPtr in
 Address of array containing \fInumPids\fR process ids.
diff --git a/doc/DictObj.3 b/doc/DictObj.3
index badba69..ec36d6a 100644
--- a/doc/DictObj.3
+++ b/doc/DictObj.3
@@ -3,13 +3,13 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_DictObj 3 8.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
-Tcl_NewDictObj, Tcl_DictObjPut, Tcl_DictObjGet, Tcl_DictObjRemove, Tcl_DictObjSize, Tcl_DictObjFirst, Tcl_DictObjNext, Tcl_DictObjDone, Tcl_DictObjPutKeyList, Tcl_DictObjRemoveKeyList \- manipulate Tcl objects as dictionaries
+Tcl_NewDictObj, Tcl_DictObjPut, Tcl_DictObjGet, Tcl_DictObjRemove, Tcl_DictObjSize, Tcl_DictObjFirst, Tcl_DictObjNext, Tcl_DictObjDone, Tcl_DictObjPutKeyList, Tcl_DictObjRemoveKeyList \- manipulate Tcl values as dictionaries
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -33,10 +33,8 @@ int
 \fBTcl_DictObjFirst\fR(\fIinterp, dictPtr, searchPtr,
                  keyPtrPtr, valuePtrPtr, donePtr\fR)
 .sp
-void
 \fBTcl_DictObjNext\fR(\fIsearchPtr, keyPtrPtr, valuePtrPtr, donePtr\fR)
 .sp
-void
 \fBTcl_DictObjDone\fR(\fIsearchPtr\fR)
 .sp
 int
@@ -44,35 +42,41 @@ int
 .sp
 int
 \fBTcl_DictObjRemoveKeyList\fR(\fIinterp, dictPtr, keyc, keyv\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_DictSearch "**valuePtrPtr" in/out
 .AP Tcl_Interp *interp in
-If an error occurs while converting an object to be a dictionary object,
-an error message is left in the interpreter's result object
+If an error occurs while converting a value to be a dictionary value,
+an error message is left in the interpreter's result value
 unless \fIinterp\fR is NULL.
 .AP Tcl_Obj *dictPtr in/out
-Points to the dictionary object to be manipulated.
-If \fIdictPtr\fR does not already point to a dictionary object,
+Points to the dictionary value to be manipulated.
+If \fIdictPtr\fR does not already point to a dictionary value,
 an attempt will be made to convert it to one.
 .AP Tcl_Obj *keyPtr in
 Points to the key for the key/value pair being manipulated within the
-dictionary object.
+dictionary value.
 .AP Tcl_Obj **keyPtrPtr out
 Points to a variable that will have the key from a key/value pair
 placed within it.  May be NULL to indicate that the caller is not
 interested in the key.
 .AP Tcl_Obj *valuePtr in
-Points to the value for the key/value pair being manipulate within the
-dictionary object (or sub-object, in the case of
+Points to the value for the key/value pair being manipulated within the
+dictionary value (or sub-value, in the case of
 \fBTcl_DictObjPutKeyList\fR.)
 .AP Tcl_Obj **valuePtrPtr out
 Points to a variable that will have the value from a key/value pair
 placed within it.  For \fBTcl_DictObjFirst\fR and
 \fBTcl_DictObjNext\fR, this may be NULL to indicate that the caller is
 not interested in the value.
-.AP int *sizePtr out
+.AP "Tcl_Size \&| int" *sizePtr out
 Points to a variable that will have the number of key/value pairs
 contained within the dictionary placed within it.
+May be (Tcl_Size *)NULL when not used. If it points to a variable which
+type is not \fBTcl_Size\fR, a compiler warning will be generated.
+If your extensions is compiled with -DTCL_8_API, this function will return
+NULL for dictionaries larger than INT_MAX (which should
+trigger proper error-handling), otherwise expect it to crash.
 .AP Tcl_DictSearch *searchPtr in/out
 Pointer to record to use to keep track of progress in enumerating all
 key/value pairs in a dictionary.  The contents of the record will be
@@ -84,19 +88,19 @@ returned, the search record \fImust\fR be passed to
 Points to a variable that will have a non-zero value written into it
 when the enumeration of the key/value pairs in a dictionary has
 completed, and a zero otherwise.
-.AP int keyc in
+.AP Tcl_Size keyc in
 Indicates the number of keys that will be supplied in the \fIkeyv\fR
 array.
 .AP "Tcl_Obj *const" *keyv in
-Array of \fIkeyc\fR pointers to objects that
+Array of \fIkeyc\fR pointers to values that
 \fBTcl_DictObjPutKeyList\fR and \fBTcl_DictObjRemoveKeyList\fR will
 use to locate the key/value pair to manipulate within the
-sub-dictionaries of the main dictionary object passed to them.
+sub-dictionaries of the main dictionary value passed to them.
 .BE
 
 .SH DESCRIPTION
 .PP
-Tcl dictionary objects have an internal representation that supports
+Tcl dictionary values have an internal representation that supports
 efficient mapping from keys to values and which guarantees that the
 particular ordering of keys within the dictionary remains the same
 modulo any keys being deleted (which removes them from the order) or
@@ -106,11 +110,11 @@ keys of the dictionary, and each will be followed (in the odd-valued
 index) by the value associated with that key.
 .PP
 The procedures described in this man page are used to
-create, modify, index, and iterate over dictionary objects from C code.
+create, modify, index, and iterate over dictionary values from C code.
 .PP
-\fBTcl_NewDictObj\fR creates a new, empty dictionary object.  The
-string representation of the object will be invalid, and the reference
-count of the object will be zero.
+\fBTcl_NewDictObj\fR creates a new, empty dictionary value.  The
+string representation of the value will be invalid, and the reference
+count of the value will be zero.
 .PP
 \fBTcl_DictObjGet\fR looks up the given key within the given
 dictionary and writes a pointer to the value associated with that key
@@ -138,7 +142,8 @@ converted to a dictionary.
 \fBTcl_DictObjSize\fR updates the given variable with the number of
 key/value pairs currently in the given dictionary. The result of this
 procedure is \fBTCL_OK\fR, or \fBTCL_ERROR\fR if the \fIdictPtr\fR cannot be
-converted to a dictionary.
+converted to a dictionary or if \fIsizePtr\fR points to a variable of type
+\fBint\fR and the dict contains more than 2**31 key/value pairs.
 .PP
 \fBTcl_DictObjFirst\fR commences an iteration across all the key/value
 pairs in the given dictionary, placing the key and value in the
@@ -190,6 +195,73 @@ path as this is easy to construct from repeated use of
 dictionaries are created for non-terminal keys where they do not
 already exist. With \fBTcl_DictObjRemoveKeyList\fR, all non-terminal
 keys must exist and have dictionaries as their values.
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+\fBTcl_NewDictObj\fR always returns a zero-reference object, much like
+\fBTcl_NewObj\fR.
+.PP
+\fBTcl_DictObjPut\fR does not modify the reference count of its \fIdictPtr\fR
+argument, but does require that the object be unshared.  If
+\fBTcl_DictObjPut\fR returns \fBTCL_ERROR\fR it does not manipulate any
+reference counts; but if it returns \fBTCL_OK\fR then it definitely increments
+the reference count of \fIvaluePtr\fR and may increment the reference count of
+\fIkeyPtr\fR; the latter case happens exactly when the key did not previously
+exist in the dictionary.  Note however that this function may set the
+interpreter result; if that is the only place that is holding a reference to
+an object, it will be deleted.
+.PP
+\fBTcl_DictObjGet\fR only reads from its \fIdictPtr\fR and \fIkeyPtr\fR
+arguments, and does not manipulate their reference counts at all.  If the
+\fIvaluePtrPtr\fR argument is not set to NULL (and the function doesn't return
+\fBTCL_ERROR\fR), it will be set to a value with a reference count of at least
+1, with a reference owned by the dictionary.  Note however that this function
+may set the interpreter result; if that is the only place that is holding a
+reference to an object, it will be deleted.
+.PP
+\fBTcl_DictObjRemove\fR does not modify the reference count of its
+\fIdictPtr\fR argument, but does require that the object be unshared. It does
+not manipulate the reference count of its \fIkeyPtr\fR argument at all.  Note
+however that this function may set the interpreter result; if that is the only
+place that is holding a reference to an object, it will be deleted.
+.PP
+\fBTcl_DictObjSize\fR does not modify the reference count of its \fIdictPtr\fR
+argument; it only reads.  Note however that this function may set the
+interpreter result; if that is the only place that is holding a reference to
+the dictionary object, it will be deleted.
+.PP
+\fBTcl_DictObjFirst\fR does not modify the reference count of its
+\fIdictPtr\fR argument; it only reads. The variables given by the
+\fIkeyPtrPtr\fR and \fIvaluePtrPtr\fR arguments (if not NULL) will be updated
+to contain references to the relevant values in the dictionary; their
+reference counts will be at least 1 (due to the dictionary holding a reference
+to them). It may also manipulate internal references; these are not exposed to
+user code, but require a matching \fBTcl_DictObjDone\fR call.  Note however
+that this function may set the interpreter result; if that is the only place
+that is holding a reference to the dictionary object, it will be deleted.
+.PP
+Similarly for \fBTcl_DictObjNext\fR; the variables given by the
+\fIkeyPtrPtr\fR and \fIvaluePtrPtr\fR arguments (if not NULL) will be updated
+to contain references to the relevant values in the dictionary; their
+reference counts will be at least 1 (due to the dictionary holding a reference
+to them).
+.PP
+\fBTcl_DictObjDone\fR does not manipulate (user-visible) reference counts.
+.PP
+\fBTcl_DictObjPutKeyList\fR is similar to \fBTcl_DictObjPut\fR; it does not
+modify the reference count of its \fIdictPtr\fR argument, but does require
+that the object be unshared. It may increment the reference count of any value
+passed in the \fIkeyv\fR argument, and will increment the reference count of
+the \fIvaluePtr\fR argument on success. It is recommended that values passed
+via \fIkeyv\fR and \fIvaluePtr\fR do not have zero reference counts.  Note
+however that this function may set the interpreter result; if that is the only
+place that is holding a reference to an object, it will be deleted.
+.PP
+\fBTcl_DictObjRemoveKeyList\fR is similar to \fBTcl_DictObjRemove\fR; it does
+not modify the reference count of its \fIdictPtr\fR argument, but does require
+that the object be unshared, and does not modify the reference counts of any
+of the values passed in the \fIkeyv\fR argument.  Note however that this
+function may set the interpreter result; if that is the only place that is
+holding a reference to an object, it will be deleted.
 .SH EXAMPLE
 Using the dictionary iteration interface to search determine if there
 is a key that maps to itself:
@@ -217,7 +289,7 @@ if (\fBTcl_DictObjFirst\fR(interp, objPtr, &search,
 for (; !done ; \fBTcl_DictObjNext\fR(&search, &key, &value, &done)) {
     /*
      * Note that strcmp() is not a good way of comparing
-     * objects and is just used here for demonstration
+     * values and is just used here for demonstration
      * purposes.
      */
     if (!strcmp(Tcl_GetString(key), Tcl_GetString(value))) {
@@ -231,4 +303,4 @@ return TCL_OK;
 .SH "SEE ALSO"
 Tcl_NewObj, Tcl_DecrRefCount, Tcl_IncrRefCount, Tcl_InitObjHashTable
 .SH KEYWORDS
-dict, dict object, dictionary, dictionary object, hash table, iteration, object
+dict, dict value, dictionary, dictionary value, hash table, iteration, value
diff --git a/doc/DoOneEvent.3 b/doc/DoOneEvent.3
index 6f08b34..b14f2e1 100644
--- a/doc/DoOneEvent.3
+++ b/doc/DoOneEvent.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_DoOneEvent 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -16,11 +16,12 @@ Tcl_DoOneEvent \- wait for events and invoke event handlers
 .sp
 int
 \fBTcl_DoOneEvent\fR(\fIflags\fR)
+.fi
 .SH ARGUMENTS
 .AS int flags
 .AP int flags in
 This parameter is normally zero.  It may be an OR-ed combination
-of any of the following flag bits:  
+of any of the following flag bits:
 \fBTCL_WINDOW_EVENTS\fR, \fBTCL_FILE_EVENTS\fR,
 \fBTCL_TIMER_EVENTS\fR, \fBTCL_IDLE_EVENTS\fR, \fBTCL_ALL_EVENTS\fR,
 or \fBTCL_DONT_WAIT\fR.
@@ -43,7 +44,7 @@ handlers for the first event on the queue, and returns.
 If no events are found, \fBTcl_DoOneEvent\fR checks for \fBTcl_DoWhenIdle\fR
 callbacks; if any are found, it invokes all of them and returns.
 Finally, if no events or idle callbacks have been found, then
-\fBTcl_DoOneEvent\fR sleeps until an event occurs; then it adds any 
+\fBTcl_DoOneEvent\fR sleeps until an event occurs; then it adds any
 new events to the Tcl event queue, calls handlers for the first event,
 and returns.
 The normal return value is 1 to signify that some event
@@ -53,24 +54,18 @@ If the \fIflags\fR argument to \fBTcl_DoOneEvent\fR is non-zero,
 it restricts the kinds of events that will be processed by
 \fBTcl_DoOneEvent\fR.
 \fIFlags\fR may be an OR-ed combination of any of the following bits:
-.TP 27
-\fBTCL_WINDOW_EVENTS\fR \-
+.IP \fBTCL_WINDOW_EVENTS\fR
 Process window system events.
-.TP 27
-\fBTCL_FILE_EVENTS\fR \-
+.IP \fBTCL_FILE_EVENTS\fR
 Process file events.
-.TP 27
-\fBTCL_TIMER_EVENTS\fR \-
+.IP \fBTCL_TIMER_EVENTS\fR
 Process timer events.
-.TP 27
-\fBTCL_IDLE_EVENTS\fR \-
+.IP \fBTCL_IDLE_EVENTS\fR
 Process idle callbacks.
-.TP 27
-\fBTCL_ALL_EVENTS\fR \-
+.IP \fBTCL_ALL_EVENTS\fR
 Process all kinds of events:  equivalent to OR-ing together all of the
 above flags or specifying none of them.
-.TP 27
-\fBTCL_DONT_WAIT\fR \-
+.IP \fBTCL_DONT_WAIT\fR
 Do not sleep:  process only events that are ready at the time of the
 call.
 .LP
diff --git a/doc/DoWhenIdle.3 b/doc/DoWhenIdle.3
index 501378e..f342820 100644
--- a/doc/DoWhenIdle.3
+++ b/doc/DoWhenIdle.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_DoWhenIdle 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -17,14 +17,14 @@ Tcl_DoWhenIdle, Tcl_CancelIdleCall \- invoke a procedure when there are no pendi
 \fBTcl_DoWhenIdle\fR(\fIproc, clientData\fR)
 .sp
 \fBTcl_CancelIdleCall\fR(\fIproc, clientData\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_IdleProc clientData
 .AP Tcl_IdleProc *proc in
 Procedure to invoke.
-.AP ClientData clientData in
+.AP void *clientData in
 Arbitrary one-word value to pass to \fIproc\fR.
 .BE
-
 .SH DESCRIPTION
 .PP
 \fBTcl_DoWhenIdle\fR arranges for \fIproc\fR to be invoked
@@ -41,9 +41,12 @@ use \fBTcl_DoOneEvent\fR to dispatch events.
 .PP
 \fIProc\fR should have arguments and result that match the
 type \fBTcl_IdleProc\fR:
+.PP
 .CS
-typedef void Tcl_IdleProc(ClientData \fIclientData\fR);
+typedef void \fBTcl_IdleProc\fR(
+        void *\fIclientData\fR);
 .CE
+.PP
 The \fIclientData\fR parameter to \fIproc\fR is a copy of the \fIclientData\fR
 argument given to \fBTcl_DoWhenIdle\fR.  Typically, \fIclientData\fR
 points to a data structure containing application-specific information about
@@ -79,6 +82,7 @@ continuously.  This will interact badly with certain features of Tk
 that attempt to wait for all idle callbacks to complete.  If you would
 like for an idle callback to reschedule itself continuously, it is
 better to use a timer handler with a zero timeout period.
-
+.SH "SEE ALSO"
+after(n), Tcl_CreateFileHandler(3), Tcl_CreateTimerHandler(3)
 .SH KEYWORDS
 callback, defer, idle callback
diff --git a/doc/DoubleObj.3 b/doc/DoubleObj.3
index a2496d9..4696cc3 100644
--- a/doc/DoubleObj.3
+++ b/doc/DoubleObj.3
@@ -3,12 +3,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_DoubleObj 3 8.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_NewDoubleObj, Tcl_SetDoubleObj, Tcl_GetDoubleFromObj \- manipulate Tcl objects as floating-point values
+Tcl_NewDoubleObj, Tcl_SetDoubleObj, Tcl_GetDoubleFromObj \- manipulate Tcl values as floating-point values
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -20,15 +20,16 @@ Tcl_Obj *
 .sp
 int
 \fBTcl_GetDoubleFromObj\fR(\fIinterp, objPtr, doublePtr\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp doubleValue in/out
 .AP double doubleValue in
-A double-precision floating-point value used to initialize or set a Tcl object.
+A double-precision floating-point value used to initialize or set a Tcl value.
 .AP Tcl_Obj *objPtr in/out
-For \fBTcl_SetDoubleObj\fR, this points to the object in which to store a
+For \fBTcl_SetDoubleObj\fR, this points to the value in which to store a
 double value.
-For \fBTcl_GetDoubleFromObj\fR, this refers to the object
-from which to retrieve a double value. 
+For \fBTcl_GetDoubleFromObj\fR, this refers to the value
+from which to retrieve a double value.
 .AP Tcl_Interp *interp in/out
 When non-NULL, an error message is left here when double value retrieval fails.
 .AP double *doublePtr out
@@ -37,28 +38,41 @@ Points to place to store the double value obtained from \fIobjPtr\fR.
 
 .SH DESCRIPTION
 .PP
-These procedures are used to create, modify, and read Tcl objects that
+These procedures are used to create, modify, and read Tcl values that
 hold double-precision floating-point values.
 .PP
-\fBTcl_NewDoubleObj\fR creates and returns a new Tcl object initialized to
-the double value \fIdoubleValue\fR.  The returned Tcl object is unshared.
+\fBTcl_NewDoubleObj\fR creates and returns a new Tcl value initialized to
+the double value \fIdoubleValue\fR.  The returned Tcl value is unshared.
 .PP
-\fBTcl_SetDoubleObj\fR sets the value of an existing Tcl object pointed to
+\fBTcl_SetDoubleObj\fR sets the value of an existing Tcl value pointed to
 by \fIobjPtr\fR to the double value \fIdoubleValue\fR.  The \fIobjPtr\fR
-argument must point to an unshared Tcl object.  Any attempt to set the value
-of a shared Tcl object violates Tcl's copy-on-write policy.  Any existing
-string representation or internal representation in the unshared Tcl object
+argument must point to an unshared Tcl value.  Any attempt to set the value
+of a shared Tcl value violates Tcl's copy-on-write policy.  Any existing
+string representation or internal representation in the unshared Tcl value
 will be freed as a consequence of setting the new value.
 .PP
 \fBTcl_GetDoubleFromObj\fR attempts to retrieve a double value from the
-Tcl object \fIobjPtr\fR.  If the attempt succeeds, then \fBTCL_OK\fR is
+Tcl value \fIobjPtr\fR.  If the attempt succeeds, then \fBTCL_OK\fR is
 returned, and the double value is written to the storage pointed to by
 \fIdoublePtr\fR.  If the attempt fails, then \fBTCL_ERROR\fR is returned,
 and if \fIinterp\fR is non-NULL, an error message is left in \fIinterp\fR.
 The \fBTcl_ObjType\fR of \fIobjPtr\fR may be changed to make subsequent
-calls to \fBTcl_GetDoubleFromObj\fR more efficient. 
+calls to \fBTcl_GetDoubleFromObj\fR more efficient.
 '\" TODO: add discussion of treatment of NaN value
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+\fBTcl_NewDoubleObj\fR always returns a zero-reference object, much
+like \fBTcl_NewObj\fR.
+.PP
+\fBTcl_SetDoubleObj\fR does not modify the reference count of its
+\fIobjPtr\fR argument, but does require that the object be unshared.
+.PP
+\fBTcl_GetDoubleFromObj\fR does not modify the reference count of its
+\fIobjPtr\fR argument; it only reads. Note however that this function
+may set the interpreter result; if that is the only place that
+is holding a reference to the object, it will be deleted.
 .SH "SEE ALSO"
 Tcl_NewObj, Tcl_DecrRefCount, Tcl_IncrRefCount, Tcl_GetObjResult
 .SH KEYWORDS
-double, double object, double type, internal representation, object, object type, string representation
+double, double value, double type, internal representation, value, value type,
+string representation
diff --git a/doc/DumpActiveMemory.3 b/doc/DumpActiveMemory.3
index f4d78d1..7c8dd7e 100644
--- a/doc/DumpActiveMemory.3
+++ b/doc/DumpActiveMemory.3
@@ -1,8 +1,8 @@
 '\"
-'\" Copyright (c) 1992-1999 Karl Lehenbauer and Mark Diekhans.
-'\" Copyright (c) 2000 by Scriptics Corporation.
+'\" Copyright (c) 1992-1999 Karl Lehenbauer & Mark Diekhans.
+'\" Copyright (c) 2000 Scriptics Corporation.
 '\" All rights reserved.
-'\" 
+'\"
 .TH "Tcl_DumpActiveMemory" 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -15,12 +15,10 @@ Tcl_DumpActiveMemory, Tcl_InitMemory, Tcl_ValidateAllMemory \- Validated memory
 int
 \fBTcl_DumpActiveMemory\fR(\fIfileName\fR)
 .sp
-void
 \fBTcl_InitMemory\fR(\fIinterp\fR)
 .sp
-void
 \fBTcl_ValidateAllMemory\fR(\fIfileName, line\fR)
-
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp *fileName
 .AP Tcl_Interp *interp in
@@ -39,11 +37,11 @@ These functions provide access to Tcl memory debugging information.
 They are only functional when Tcl has been compiled with
 \fBTCL_MEM_DEBUG\fR defined at compile-time.  When \fBTCL_MEM_DEBUG\fR
 is not defined, these functions are all no-ops.
-.PP 
+.PP
 \fBTcl_DumpActiveMemory\fR will output a list of all currently
 allocated memory to the specified file.  The information output for
 each allocated block of memory is:  starting and ending addresses
-(excluding guard zone), size, source file where \fBckalloc\fR was
+(excluding guard zone), size, source file where \fBTcl_Alloc\fR was
 called to allocate the block and line number in that file.  It is
 especially useful to call \fBTcl_DumpActiveMemory\fR after the Tcl
 interpreter has been deleted.
@@ -55,8 +53,8 @@ by \fBTcl_Main\fR.
 \fBTcl_ValidateAllMemory\fR forces a validation of the guard zones of
 all currently allocated blocks of memory.  Normally validation of a
 block occurs when its freed, unless full validation is enabled, in
-which case validation of all blocks occurs when \fBckalloc\fR and
-\fBckfree\fR are called.  This function forces the validation to occur
+which case validation of all blocks occurs when \fBTcl_Alloc\fR and
+\fBTcl_Free\fR are called.  This function forces the validation to occur
 at any point.
 
 .SH "SEE ALSO"
diff --git a/doc/Encoding.3 b/doc/Encoding.3
index c14338d..45398f3 100644
--- a/doc/Encoding.3
+++ b/doc/Encoding.3
@@ -3,12 +3,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_GetEncoding 3 "8.1" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_GetEncoding, Tcl_FreeEncoding, Tcl_GetEncodingFromObj, Tcl_ExternalToUtfDString, Tcl_ExternalToUtf, Tcl_UtfToExternalDString, Tcl_UtfToExternal, Tcl_WinTCharToUtf, Tcl_WinUtfToTChar, Tcl_GetEncodingName, Tcl_SetSystemEncoding, Tcl_GetEncodingNameFromEnvironment, Tcl_GetEncodingNames, Tcl_CreateEncoding, Tcl_GetEncodingSearchPath, Tcl_SetEncodingSearchPath, Tcl_GetDefaultEncodingDir, Tcl_SetDefaultEncodingDir \- procedures for creating and using encodings
+Tcl_GetEncoding, Tcl_FreeEncoding, Tcl_GetEncodingFromObj, Tcl_ExternalToUtfDString, Tcl_ExternalToUtfDStringEx, Tcl_ExternalToUtf, Tcl_UtfToExternalDString, Tcl_UtfToExternalDStringEx, Tcl_UtfToExternal, Tcl_GetEncodingName, Tcl_SetSystemEncoding, Tcl_GetEncodingNameFromEnvironment, Tcl_GetEncodingNames, Tcl_CreateEncoding, Tcl_GetEncodingSearchPath, Tcl_SetEncodingSearchPath \- procedures for creating and using encodings
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -16,21 +16,24 @@ Tcl_GetEncoding, Tcl_FreeEncoding, Tcl_GetEncodingFromObj, Tcl_ExternalToUtfDStr
 Tcl_Encoding
 \fBTcl_GetEncoding\fR(\fIinterp, name\fR)
 .sp
-void
 \fBTcl_FreeEncoding\fR(\fIencoding\fR)
 .sp
-.VS 8.5
 int
 \fBTcl_GetEncodingFromObj\fR(\fIinterp, objPtr, encodingPtr\fR)
-.VE 8.5
 .sp
 char *
 \fBTcl_ExternalToUtfDString\fR(\fIencoding, src, srcLen, dstPtr\fR)
 .sp
+int
+\fBTcl_ExternalToUtfDStringEx\fR(\fIinterp, encoding, src, srcLen, flags, dstPtr, errorIdxPtr\fR)
+.sp
 char *
 \fBTcl_UtfToExternalDString\fR(\fIencoding, src, srcLen, dstPtr\fR)
 .sp
 int
+\fBTcl_UtfToExternalDStringEx\fR(\fIinterp, encoding, src, srcLen, flags, dstPtr, errorIdxPtr\fR)
+.sp
+int
 \fBTcl_ExternalToUtf\fR(\fIinterp, encoding, src, srcLen, flags, statePtr,
                   dst, dstLen, srcReadPtr, dstWrotePtr, dstCharsPtr\fR)
 .sp
@@ -38,42 +41,29 @@ int
 \fBTcl_UtfToExternal\fR(\fIinterp, encoding, src, srcLen, flags, statePtr,
                   dst, dstLen, srcReadPtr, dstWrotePtr, dstCharsPtr\fR)
 .sp
-char *
-\fBTcl_WinTCharToUtf\fR(\fItsrc, srcLen, dstPtr\fR)
-.sp
-TCHAR *
-\fBTcl_WinUtfToTChar\fR(\fIsrc, srcLen, dstPtr\fR)
-.sp
 const char *
 \fBTcl_GetEncodingName\fR(\fIencoding\fR)
 .sp
+Tcl_Size
+\fBTcl_GetEncodingNulLength\fR(\fIencoding\fR)
+.sp
 int
 \fBTcl_SetSystemEncoding\fR(\fIinterp, name\fR)
 .sp
-.VS 8.5
 const char *
 \fBTcl_GetEncodingNameFromEnvironment\fR(\fIbufPtr\fR)
-.VE 8.5
 .sp
-void
 \fBTcl_GetEncodingNames\fR(\fIinterp\fR)
 .sp
 Tcl_Encoding
 \fBTcl_CreateEncoding\fR(\fItypePtr\fR)
 .sp
-.VS 8.5
 Tcl_Obj *
 \fBTcl_GetEncodingSearchPath\fR()
 .sp
 int
 \fBTcl_SetEncodingSearchPath\fR(\fIsearchPath\fR)
-.VE 8.5
-.sp
-const char *
-\fBTcl_GetDefaultEncodingDir\fR(\fIvoid\fR)
-.sp
-void
-\fBTcl_SetDefaultEncodingDir\fR(\fIpath\fR)
+.fi
 .SH ARGUMENTS
 .AS "const Tcl_EncodingType" *dstWrotePtr in/out
 .AP Tcl_Interp *interp in
@@ -82,31 +72,27 @@ desired.
 .AP "const char" *name in
 Name of encoding to load.
 .AP Tcl_Encoding encoding in
-The encoding to query, free, or use for converting text.  If \fIencoding\fR is 
+The encoding to query, free, or use for converting text.  If \fIencoding\fR is
 NULL, the current system encoding is used.
 .AP Tcl_Obj *objPtr in
-.VS 8.5
 Name of encoding to get token for.
-.VE 8.5
 .AP Tcl_Encoding *encodingPtr out
-.VS 8.5
 Points to storage where encoding token is to be written.
-.VE 8.5
 .AP "const char" *src in
 For the \fBTcl_ExternalToUtf\fR functions, an array of bytes in the
 specified encoding that are to be converted to UTF-8.  For the
-\fBTcl_UtfToExternal\fR and \fBTcl_WinUtfToTChar\fR functions, an array of
-UTF-8 characters to be converted to the specified encoding.  
+\fBTcl_UtfToExternal\fR function, an array of
+UTF-8 characters to be converted to the specified encoding.
 .AP "const TCHAR" *tsrc in
 An array of Windows TCHAR characters to convert to UTF-8.
-.AP int srcLen in 
-Length of \fIsrc\fR or \fItsrc\fR in bytes.  If the length is negative, the 
+.AP Tcl_Size srcLen in
+Length of \fIsrc\fR or \fItsrc\fR in bytes.  If the length is negative, the
 encoding-specific length of the string is used.
 .AP Tcl_DString *dstPtr out
 Pointer to an uninitialized or free \fBTcl_DString\fR in which the converted
 result will be stored.
 .AP int flags in
-Various flag bits OR-ed together.  
+This is a bit mask passed in to control the operation of the encoding functions.
 \fBTCL_ENCODING_START\fR signifies that the
 source buffer is the first block in a (potentially multi-block) input
 stream, telling the conversion routine to reset to an initial state and
@@ -114,11 +100,15 @@ perform any initialization that needs to occur before the first byte is
 converted. \fBTCL_ENCODING_END\fR signifies that the source buffer is the last
 block in a (potentially multi-block) input stream, telling the conversion
 routine to perform any finalization that needs to occur after the last
-byte is converted and then to reset to an initial state.
-\fBTCL_ENCODING_STOPONERROR\fR signifies that the conversion routine should
-return immediately upon reading a source character that does not exist in
-the target encoding; otherwise a default fallback character will
-automatically be substituted.  
+byte is converted and then to reset to an initial state. The
+\fBTCL_PROFILE_*\fR bits defined in the \fBPROFILES\fR section below
+control the encoding profile to be used for dealing with invalid data or
+other errors in the encoding transform.
+The flag \fBTCL_ENCODING_STOPONERROR\fR has no effect,
+it only has meaning in Tcl 8.x.
+.PP
+Some flags bits may not be usable with some functions as noted in the
+function descriptions below.
 .AP Tcl_EncodingState *statePtr in/out
 Used when converting a (generally long or indefinite length) byte stream
 in a piece-by-piece fashion.  The conversion routine stores its current
@@ -126,7 +116,7 @@ state in \fI*statePtr\fR after \fIsrc\fR (the buffer containing the
 current piece) has been converted; that state information must be passed
 back when converting the next piece of the stream so the conversion
 routine knows what state it was in when it left off at the end of the
-last piece.  May be NULL, in which case the value specified for \fIflags\fR 
+last piece.  May be NULL, in which case the value specified for \fIflags\fR
 is ignored and the source buffer is assumed to contain the complete string to
 convert.
 .AP char *dst out
@@ -144,18 +134,17 @@ buffer as a result of the conversion.  May be NULL.
 .AP int *dstCharsPtr out
 Filled with the number of characters that correspond to the number of bytes
 stored in the output buffer.  May be NULL.
+.AP Tcl_Size *errorIdxPtr out
+Filled with the index of the byte or character that caused the encoding transform
+to fail. May be NULL.
 .AP Tcl_DString *bufPtr out
-.VS 8.5
 Storage for the prescribed system encoding name.
-.VE 8.5
 .AP "const Tcl_EncodingType" *typePtr in
-Structure that defines a new type of encoding.  
+Structure that defines a new type of encoding.
 .AP Tcl_Obj *searchPath in
-.VS 8.5
 List of filesystem directories in which to search for encoding data files.
-.VE 8.5
 .AP "const char" *path in
-A path to the location of the encoding file.  
+A path to the location of the encoding file.
 .BE
 .SH INTRODUCTION
 .PP
@@ -194,15 +183,14 @@ The first time \fIname\fR is seen, \fBTcl_GetEncoding\fR returns an
 encoding with a reference count of 1.  If the same \fIname\fR is requested
 further times, then the reference count for that encoding is incremented
 without the overhead of allocating a new encoding and all its associated
-data structures.  
+data structures.
 .PP
 When an \fIencoding\fR is no longer needed, \fBTcl_FreeEncoding\fR
 should be called to release it.  When an \fIencoding\fR is no longer in use
 anywhere (i.e., it has been freed as many times as it has been gotten)
 \fBTcl_FreeEncoding\fR will release all storage the encoding was using
-and delete it from the database. 
+and delete it from the database.
 .PP
-.VS 8.5
 \fBTcl_GetEncodingFromObj\fR treats the string representation of
 \fIobjPtr\fR as an encoding name, and finds an encoding with that
 name, just as \fBTcl_GetEncoding\fR does. When an encoding is found,
@@ -214,16 +202,36 @@ writing to \fB*\fR\fIencodingPtr\fR takes place. Just as with
 \fBTcl_GetEncoding\fR, the caller should call \fBTcl_FreeEncoding\fR
 on the resulting encoding token when that token will no longer be
 used.
-.VE 8.5
 .PP
 \fBTcl_ExternalToUtfDString\fR converts a source buffer \fIsrc\fR from the
-specified \fIencoding\fR into UTF-8.  The converted bytes are stored in 
+specified \fIencoding\fR into UTF-8.  The converted bytes are stored in
 \fIdstPtr\fR, which is then null-terminated.  The caller should eventually
 call \fBTcl_DStringFree\fR to free any information stored in \fIdstPtr\fR.
 When converting, if any of the characters in the source buffer cannot be
 represented in the target encoding, a default fallback character will be
 used.  The return value is a pointer to the value stored in the DString.
 .PP
+\fBTcl_ExternalToUtfDStringEx\fR is a more flexible version of older
+\fBTcl_ExternalToUtfDString\fR function. It takes three additional parameters,
+\fBinterp\fR, \fBflags\fR and \fBerrorIdxPtr\fR. The \fBflags\fR parameter may
+be used to specify the profile to be used for the transform. The
+\fBTCL_ENCODING_START\fR and \fBTCL_ENCODING_END\fR bits in \fBflags\fR are
+ignored as the function assumes the entire source string to be decoded is passed
+into the function. On success, the function returns \fBTCL_OK\fR with the
+converted string stored in \fB*dstPtr\fR. For errors \fIother than conversion
+errors\fR, such as invalid flags, the function returns \fBTCL_ERROR\fR with an
+error message in \fBinterp\fR if it is not NULL.
+For conversion errors, \fBTcl_ExternalToUtfDStringEx\fR returns one
+of the \fBTCL_CONVERT_*\fR errors listed below for \fBTcl_ExternalToUtf\fR.
+When one of these conversion errors is returned, an error message is stored
+in \fBinterp\fR only if \fBerrorIdxPtr\fR is NULL. Otherwise, no error message
+is stored as the function expects the caller is interested the decoded data
+up to that point and not treating this as an immediate error condition.
+The index of the error location is stored in \fB*errorIdxPtr\fR.
+.PP
+The caller must call \fBTcl_DStringFree\fR to free up the \fB*dstPtr\fR resources
+irrespective of the return value from the function.
+.PP
 \fBTcl_ExternalToUtf\fR converts a source buffer \fIsrc\fR from the specified
 \fIencoding\fR into UTF-8.  Up to \fIsrcLen\fR bytes are converted from the
 source buffer and up to \fIdstLen\fR converted bytes are stored in \fIdst\fR.
@@ -243,17 +251,17 @@ sequence, but more bytes were needed to complete this sequence.  A
 subsequent call to the conversion routine should pass a buffer containing
 the unconverted bytes that remained in \fIsrc\fR plus some further bytes
 from the source stream to properly convert the formerly split-up multibyte
-sequence.  
+sequence.
 .IP \fBTCL_CONVERT_SYNTAX\fR 29
-The source buffer contained an invalid character sequence.  This may occur
-if the input stream has been damaged or if the input encoding method was
+The source buffer contained an invalid byte or character sequence.  This may
+occur if the input stream has been damaged or if the input encoding method was
 misidentified.
 .IP \fBTCL_CONVERT_UNKNOWN\fR 29
 The source buffer contained a character that could not be represented in
-the target encoding and \fBTCL_ENCODING_STOPONERROR\fR was specified.  
+the target encoding.
 .RE
 .LP
-\fBTcl_UtfToExternalDString\fR converts a source buffer \fIsrc\fR from UTF-8 
+\fBTcl_UtfToExternalDString\fR converts a source buffer \fIsrc\fR from UTF-8
 into the specified \fIencoding\fR.  The converted bytes are stored in
 \fIdstPtr\fR, which is then terminated with the appropriate encoding-specific
 null.  The caller should eventually call \fBTcl_DStringFree\fR to free any
@@ -262,6 +270,16 @@ characters in the source buffer cannot be represented in the target
 encoding, a default fallback character will be used.  The return value is
 a pointer to the value stored in the DString.
 .PP
+\fBTcl_UtfToExternalDStringEx\fR is an enhanced version of
+\fBTcl_UtfToExternalDString\fR that transforms UTF-8 encoded source data to a
+specified \fIencoding\fR. Except for the direction of the transform, the
+parameters and return values are identical to those of
+\fBTcl_ExternalToUtfDStringEx\fR. See
+that function above for details about the same.
+.PP
+Irrespective of the return code from the function, the caller must free
+resources associated with \fB*dstPtr\fR when the function returns.
+.PP
 \fBTcl_UtfToExternal\fR converts a source buffer \fIsrc\fR from UTF-8 into
 the specified \fIencoding\fR.  Up to \fIsrcLen\fR bytes are converted from
 the source buffer and up to \fIdstLen\fR converted bytes are stored in
@@ -271,54 +289,15 @@ is filled with the corresponding number of bytes that were stored in
 \fIdst\fR.  The return values are the same as the return values for
 \fBTcl_ExternalToUtf\fR.
 .PP
-\fBTcl_WinUtfToTChar\fR and \fBTcl_WinTCharToUtf\fR are
-Windows-only convenience
-functions for converting between UTF-8 and Windows strings.  On Windows 95
-(as with the Unix operating system),
-all strings exchanged between Tcl and the operating system are
-.QW "char"
-based.  On Windows NT, some strings exchanged between Tcl and the
-operating system are
-.QW "char"
-oriented while others are in Unicode.  By
-convention, in Windows a TCHAR is a character in the ANSI code page
-on Windows 95 and a Unicode character on Windows NT.
-.PP
-If you planned to use the same
-.QW "char"
-based interfaces on both Windows
-95 and Windows NT, you could use \fBTcl_UtfToExternal\fR and
-\fBTcl_ExternalToUtf\fR (or their \fBTcl_DString\fR equivalents) with an
-encoding of NULL (the current system encoding).  On the other hand,
-if you planned to use the Unicode interface when running on Windows NT
-and the
-.QW "char"
-interfaces when running on Windows 95, you would have
-to perform the following type of test over and over in your program
-(as represented in pseudo-code):
-.CS
-if (running NT) {
-    encoding <- Tcl_GetEncoding("unicode");
-    nativeBuffer <- Tcl_UtfToExternal(encoding, utfBuffer);
-    Tcl_FreeEncoding(encoding);
-} else {
-    nativeBuffer <- Tcl_UtfToExternal(NULL, utfBuffer);
-}
-.CE
-\fBTcl_WinUtfToTChar\fR and \fBTcl_WinTCharToUtf\fR automatically
-handle this test and use the proper encoding based on the current
-operating system.  \fBTcl_WinUtfToTChar\fR returns a pointer to
-a TCHAR string, and \fBTcl_WinTCharToUtf\fR expects a TCHAR string
-pointer as the \fIsrc\fR string.  Otherwise, these functions
-behave identically to \fBTcl_UtfToExternalDString\fR and
-\fBTcl_ExternalToUtfDString\fR.
-.PP
 \fBTcl_GetEncodingName\fR is roughly the inverse of \fBTcl_GetEncoding\fR.
 Given an \fIencoding\fR, the return value is the \fIname\fR argument that
-was used to create the encoding.  The string returned by 
+was used to create the encoding.  The string returned by
 \fBTcl_GetEncodingName\fR is only guaranteed to persist until the
 \fIencoding\fR is deleted.  The caller must not modify this string.
 .PP
+\fBTcl_GetEncodingNulLength\fR returns the length of the terminating
+nul byte sequence for strings in the specified encoding.
+.PP
 \fBTcl_SetSystemEncoding\fR sets the default encoding that should be used
 whenever the user passes a NULL value for the \fIencoding\fR argument to
 any of the other encoding functions.  If \fIname\fR is NULL, the system
@@ -329,19 +308,17 @@ procedure increments the reference count of the new system encoding,
 decrements the reference count of the old system encoding, and returns
 \fBTCL_OK\fR.
 .PP
-.VS 8.5
 \fBTcl_GetEncodingNameFromEnvironment\fR provides a means for the Tcl
 library to report the encoding name it believes to be the correct one
 to use as the system encoding, based on system calls and examination of
 the environment suitable for the platform.  It accepts \fIbufPtr\fR,
 a pointer to an uninitialized or freed \fBTcl_DString\fR and writes
 the encoding name to it.  The \fBTcl_DStringValue\fR is returned.
-.VE 8.5
 .PP
 \fBTcl_GetEncodingNames\fR sets the \fIinterp\fR result to a list
 consisting of the names of all the encodings that are currently defined
 or can be dynamically loaded, searching the encoding path specified by
-\fBTcl_SetDefaultEncodingDir\fR.  This procedure does not ensure that the
+\fBTcl_SetEncodingSearchPath\fR.  This procedure does not ensure that the
 dynamically-loadable encoding files contain valid data, but merely that they
 exist.
 .PP
@@ -356,21 +333,21 @@ reference count of 1. If an encoding with the specified \fIname\fR
 already exists, then its entry in the database is replaced with the new
 encoding; the token for the old encoding will remain valid and continue
 to behave as before, but users of the new token will now call the new
-encoding procedures.  
+encoding procedures.
 .PP
-The \fItypePtr\fR argument to \fBTcl_CreateEncoding\fR contains information 
+The \fItypePtr\fR argument to \fBTcl_CreateEncoding\fR contains information
 about the name of the encoding and the procedures that will be called to
 convert between this encoding and UTF-8.  It is defined as follows:
 .PP
 .CS
-typedef struct Tcl_EncodingType {
-        const char *\fIencodingName\fR;
-        Tcl_EncodingConvertProc *\fItoUtfProc\fR;
-        Tcl_EncodingConvertProc *\fIfromUtfProc\fR;
-        Tcl_EncodingFreeProc *\fIfreeProc\fR;
-        ClientData \fIclientData\fR;
-        int \fInullSize\fR;
-} Tcl_EncodingType;  
+typedef struct {
+    const char *\fIencodingName\fR;
+    Tcl_EncodingConvertProc *\fItoUtfProc\fR;
+    Tcl_EncodingConvertProc *\fIfromUtfProc\fR;
+    Tcl_EncodingFreeProc *\fIfreeProc\fR;
+    void *\fIclientData\fR;
+    Tcl_Size \fInullSize\fR;
+} \fBTcl_EncodingType\fR;
 .CE
 .PP
 The \fIencodingName\fR provides a string name for the encoding, by
@@ -398,14 +375,14 @@ The callback procedures \fItoUtfProc\fR and \fIfromUtfProc\fR should match the
 type \fBTcl_EncodingConvertProc\fR:
 .PP
 .CS
-typedef int Tcl_EncodingConvertProc(
-        ClientData \fIclientData\fR,
-        const char *\fIsrc\fR, 
-        int \fIsrcLen\fR, 
-        int \fIflags\fR, 
+typedef int \fBTcl_EncodingConvertProc\fR(
+        void *\fIclientData\fR,
+        const char *\fIsrc\fR,
+        int \fIsrcLen\fR,
+        int \fIflags\fR,
         Tcl_EncodingState *\fIstatePtr\fR,
-        char *\fIdst\fR, 
-        int \fIdstLen\fR, 
+        char *\fIdst\fR,
+        int \fIdstLen\fR,
         int *\fIsrcReadPtr\fR,
         int *\fIdstWrotePtr\fR,
         int *\fIdstCharsPtr\fR);
@@ -421,26 +398,26 @@ documented at the top, to \fBTcl_ExternalToUtf\fR or
 \fBTcl_UtfToExternal\fR, with the following exceptions.  If the
 \fIsrcLen\fR argument to one of those high-level functions is negative,
 the value passed to the callback procedure will be the appropriate
-encoding-specific string length of \fIsrc\fR.  If any of the \fIsrcReadPtr\fR, 
+encoding-specific string length of \fIsrc\fR.  If any of the \fIsrcReadPtr\fR,
 \fIdstWrotePtr\fR, or \fIdstCharsPtr\fR arguments to one of the high-level
 functions is NULL, the corresponding value passed to the callback
 procedure will be a non-NULL location.
 .PP
-The callback procedure \fIfreeProc\fR, if non-NULL, should match the type 
+The callback procedure \fIfreeProc\fR, if non-NULL, should match the type
 \fBTcl_EncodingFreeProc\fR:
+.PP
 .CS
-typedef void Tcl_EncodingFreeProc(
-        ClientData \fIclientData\fR);
+typedef void \fBTcl_EncodingFreeProc\fR(
+        void *\fIclientData\fR);
 .CE
 .PP
 This \fIfreeProc\fR function is called when the encoding is deleted.  The
 \fIclientData\fR parameter is the same as the \fIclientData\fR field
-specified to \fBTcl_CreateEncoding\fR when the encoding was created.  
+specified to \fBTcl_CreateEncoding\fR when the encoding was created.
 .PP
-.VS 8.5
 \fBTcl_GetEncodingSearchPath\fR and \fBTcl_SetEncodingSearchPath\fR
 are called to access and set the list of filesystem directories searched
-for encoding data files.  
+for encoding data files.
 .PP
 The value returned by \fBTcl_GetEncodingSearchPath\fR
 is the value stored by the last successful call to
@@ -456,16 +433,6 @@ are not verified as existing readable filesystem directories.  When
 searching for encoding data files takes place, and non-existent or
 non-readable filesystem directories on the \fIsearchPath\fR are silently
 ignored.
-.PP
-\fBTcl_GetDefaultEncodingDir\fR and \fBTcl_SetDefaultEncodingDir\fR
-are obsolete interfaces best replaced with calls to
-\fBTcl_GetEncodingSearchPath\fR and \fBTcl_SetEncodingSearchPath\fR.
-They are called to access and set the first element of the \fIsearchPath\fR
-list.  Since Tcl searches \fIsearchPath\fR for encoding data files in
-list order, these routines establish the
-.QW default
-directory in which to find encoding data files.
-.VE 8.5
 .SH "ENCODING FILES"
 Space would prohibit precompiling into Tcl every possible encoding
 algorithm, so many encodings are stored on disk as dynamically-loadable
@@ -474,7 +441,7 @@ encoding files that can be loaded using the same mechanism.  These
 encoding files contain information about the tables and/or escape
 sequences used to map between an external encoding and Unicode.  The
 external encoding may consist of single-byte, multi-byte, or double-byte
-characters.  
+characters.
 .PP
 Each dynamically-loadable encoding is represented as a text file.  The
 initial line of the file, beginning with a
@@ -498,14 +465,15 @@ many Japanese computers.
 .IP "[4] \fBE\fR"
 An escape-sequence encoding, specifying that certain sequences of bytes
 do not represent characters, but commands that describe how following bytes
-should be interpreted.  
+should be interpreted.
 .PP
-The rest of the lines in the file depend on the type.  
+The rest of the lines in the file depend on the type.
 .PP
 Cases [1], [2], and [3] are collectively referred to as table-based encoding
 files.  The lines in a table-based encoding file are in the same
 format as this example taken from the \fBshiftjis\fR encoding (this is not
 the complete file):
+.PP
 .CS
 # Encoding file: shiftjis, multi-byte
 M
@@ -550,7 +518,7 @@ The third line of the file is three numbers.  The first number is the
 fallback character (in base 16) to use when converting from UTF-8 to this
 encoding.  The second number is a \fB1\fR if this file represents the
 encoding for a symbol font, or \fB0\fR otherwise.  The last number (in base
-10) is how many pages of data follow.  
+10) is how many pages of data follow.
 .PP
 Subsequent lines in the example above are pages that describe how to map
 from the encoding into 2-byte Unicode.  The first line in a page identifies
@@ -571,19 +539,20 @@ If all characters on a page would map to 0000, that page can be omitted.
 Case [4] is the escape-sequence encoding file.  The lines in an this type of
 file are in the same format as this example taken from the \fBiso2022-jp\fR
 encoding:
+.PP
 .CS
 .ta 1.5i
 # Encoding file: iso2022-jp, escape-driven
 E
 init		{}
 final		{}
-iso8859-1	\ex1b(B
-jis0201		\ex1b(J
-jis0208		\ex1b$@
-jis0208		\ex1b$B
-jis0212		\ex1b$(D
-gb2312		\ex1b$A
-ksc5601		\ex1b$(C
+iso8859-1	\ex1B(B
+jis0201		\ex1B(J
+jis0208		\ex1B$@
+jis0208		\ex1B$B
+jis0212		\ex1B$(D
+gb2312		\ex1B$A
+ksc5601		\ex1B$(C
 .CE
 .PP
 In the file, the first column represents an option and the second column
@@ -595,7 +564,7 @@ marks that encoding.  Tcl syntax is used for the values; in the above
 example, for instance,
 .QW \fB{}\fR
 represents the empty string and
-.QW \fB\ex1b\fR
+.QW \fB\ex1B\fR
 represents character 27.
 .PP
 When \fBTcl_GetEncoding\fR encounters an encoding \fIname\fR that has not
@@ -603,5 +572,28 @@ been loaded, it attempts to load an encoding file called \fIname\fB.enc\fR
 from the \fBencoding\fR subdirectory of each directory that Tcl searches
 for its script library.  If the encoding file exists, but is
 malformed, an error message will be left in \fIinterp\fR.
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+\fBTcl_GetEncodingFromObj\fR does not modify the reference count of its
+\fIobjPtr\fR argument; it only reads. Note however that this function may set
+the interpreter result; if that is the only place that is holding a reference
+to the object, it will be deleted.
+.PP
+\fBTcl_GetEncodingSearchPath\fR returns an object with a reference count of at
+least 1.
+.SH "PROFILES"
+Encoding profiles define the manner in which errors in the encoding transforms
+are handled by the encoding functions. An application can specify the profile
+to be used by OR-ing the \fBflags\fR parameter passed to the function
+with at most one of \fBTCL_ENCODING_PROFILE_TCL8\fR,
+\fBTCL_ENCODING_PROFILE_STRICT\fR or \fBTCL_ENCODING_PROFILE_REPLACE\fR.
+These correspond to the \fBtcl8\fR, \fBstrict\fR and \fBreplace\fR profiles
+respectively. If none are specified, a version-dependent default profile is used.
+For Tcl 9.0, the default profile is \fBstrict\fR.
+.PP
+For details about profiles, see the \fBPROFILES\fR section in
+the documentation of the \fBencoding\fR command.
+.SH "SEE ALSO"
+encoding(n)
 .SH KEYWORDS
 utf, encoding, convert
diff --git a/doc/Ensemble.3 b/doc/Ensemble.3
index 3cf3143..f31049f 100644
--- a/doc/Ensemble.3
+++ b/doc/Ensemble.3
@@ -3,14 +3,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-'\" This documents the C API introduced in TIP#235
-'\" 
+'\"
 .TH Tcl_Ensemble 3 8.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_CreateEnsemble, Tcl_FindEnsemble, Tcl_GetEnsembleFlags, Tcl_GetEnsembleMappingDict, Tcl_GetEnsembleNamespace, Tcl_GetEnsembleUnknownHandler, Tcl_GetEnsembleSubcommandList, Tcl_IsEnsemble, Tcl_SetEnsembleFlags, Tcl_SetEnsembleMappingDict, Tcl_SetEnsembleSubcommandList, Tcl_SetEnsembleUnknownHandler \- manipulate ensemble commands
+Tcl_CreateEnsemble, Tcl_FindEnsemble, Tcl_GetEnsembleFlags, Tcl_GetEnsembleMappingDict, Tcl_GetEnsembleNamespace, Tcl_GetEnsembleParameterList, Tcl_GetEnsembleUnknownHandler, Tcl_GetEnsembleSubcommandList, Tcl_IsEnsemble, Tcl_SetEnsembleFlags, Tcl_SetEnsembleMappingDict, Tcl_SetEnsembleParameterList, Tcl_SetEnsembleSubcommandList, Tcl_SetEnsembleUnknownHandler \- manipulate ensemble commands
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -37,6 +35,12 @@ int
 \fBTcl_SetEnsembleMappingDict\fR(\fIinterp, token, dictObj\fR)
 .sp
 int
+\fBTcl_GetEnsembleParameterList\fR(\fIinterp, token, listObjPtr\fR)
+.sp
+int
+\fBTcl_SetEnsembleParameterList\fR(\fIinterp, token, listObj\fR)
+.sp
+int
 \fBTcl_GetEnsembleSubcommandList\fR(\fIinterp, token, listObjPtr\fR)
 .sp
 int
@@ -50,6 +54,7 @@ int
 .sp
 int
 \fBTcl_GetEnsembleNamespace\fR(\fIinterp, token, namespacePtrPtr\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Namespace **namespacePtrPtr in/out
 .AP Tcl_Interp *interp in/out
@@ -63,21 +68,21 @@ The name of the ensemble command to be created.
 The namespace to which the ensemble command is to be bound, or NULL
 for the current namespace.
 .AP int ensFlags in
-An ORed set of flag bits describing the basic configuration of the
-ensemble. Currently only one bit has meaning, TCL_ENSEMBLE_PREFIX,
+An OR'ed set of flag bits describing the basic configuration of the
+ensemble. Currently only one bit has meaning, \fBTCL_ENSEMBLE_PREFIX\fR,
 which is present when the ensemble command should also match
 unambiguous prefixes of subcommands.
 .AP Tcl_Obj *cmdNameObj in
 A value holding the name of the ensemble command to look up.
 .AP int flags in
-An ORed set of flag bits controlling the behavior of
-\fBTcl_FindEnsemble\fR. Currently only TCL_LEAVE_ERR_MSG is supported.
+An OR'ed set of flag bits controlling the behavior of
+\fBTcl_FindEnsemble\fR. Currently only \fBTCL_LEAVE_ERR_MSG\fR is supported.
 .AP Tcl_Command token in
 A normal command token that refers to an ensemble command, or which
 you wish to use for testing as an ensemble command in \fBTcl_IsEnsemble\fR.
 .AP int *ensFlagsPtr out
 Pointer to a variable into which to write the current ensemble flag
-bits; currently only the bit TCL_ENSEMBLE_PREFIX is defined.
+bits; currently only the bit \fBTCL_ENSEMBLE_PREFIX\fR is defined.
 .AP Tcl_Obj *dictObj in
 A dictionary value to use for the subcommand to implementation command
 prefix mapping dictionary in the ensemble. May be NULL if the mapping
@@ -86,17 +91,18 @@ dictionary is to be removed.
 Pointer to a variable into which to write the current ensemble mapping
 dictionary.
 .AP Tcl_Obj *listObj in
-A list value to use for the defined list of subcommands in the
-dictionary or the unknown subcommmand handler command prefix. May be
-NULL if the subcommand list or unknown handler are to be removed.
+A list value to use for the list of formal pre-subcommand parameters, the
+defined list of subcommands in the dictionary or the unknown subcommand
+handler command prefix. May be NULL if the subcommand list or unknown handler
+are to be removed.
 .AP Tcl_Obj **listObjPtr out
-Pointer to a variable into which to write the current defiend list of
-subcommands or the current unknown handler prefix.
+Pointer to a variable into which to write the current list of formal
+pre-subcommand parameters, the defined list of subcommands or the current
+unknown handler prefix.
 .AP Tcl_Namespace **namespacePtrPtr out
 Pointer to a variable into which to write the handle of the namespace
 to which the ensemble is bound.
 .BE
-
 .SH DESCRIPTION
 An ensemble is a command, bound to some namespace, which consists of a
 collection of subcommands implemented by other Tcl commands. The first
@@ -108,13 +114,13 @@ arguments: the interpreter to work within, the name of the ensemble to
 create, the namespace within the interpreter to bind the ensemble to,
 and the default set of ensemble flags. The result of the function is
 the command token for the ensemble, which may be used to further
-configure the ensemble using the API described below in \fBENSEMBLE
-PROPERTIES\fR.
+configure the ensemble using the API described below in
+\fBENSEMBLE PROPERTIES\fR.
 .PP
 Given the name of an ensemble command, the token for that command may
 be retrieved using \fBTcl_FindEnsemble\fR. If the given command name
 (in \fIcmdNameObj\fR) does not refer to an ensemble command, the
-result of the function is NULL and (if the TCL_LEAVE_ERR_MSG bit is
+result of the function is NULL and (if the \fBTCL_LEAVE_ERR_MSG\fR bit is
 set in \fIflags\fR) an error message is left in the interpreter
 result.
 .PP
@@ -126,16 +132,18 @@ Every ensemble has four read-write properties and a read-only
 property. The properties are:
 .TP
 \fBflags\fR (read-write)
+.
 The set of flags for the ensemble, expressed as a
-bit-field. Currently, the only public flag is TCL_ENSEMBLE_PREFIX
+bit-field. Currently, the only public flag is \fBTCL_ENSEMBLE_PREFIX\fR
 which is set when unambiguous prefixes of subcommands are permitted to
 be resolved to implementations as well as exact matches. The flags may
 be read and written using \fBTcl_GetEnsembleFlags\fR and
 \fBTcl_SetEnsembleFlags\fR respectively. The result of both of those
-functions is a Tcl result code (TCL_OK, or TCL_ERROR if the token does
-not refer to an ensemble).
+functions is a Tcl result code (\fBTCL_OK\fR, or \fBTCL_ERROR\fR if
+the token does not refer to an ensemble).
 .TP
 \fBmapping dictionary\fR (read-write)
+.
 A dictionary containing a mapping from subcommand names to lists of
 words to use as a command prefix (replacing the first two words of the
 command which are the ensemble command itself and the subcommand
@@ -144,26 +152,42 @@ the same unqualified name in the ensemble's bound namespace. Defaults
 to NULL. May be read and written using
 \fBTcl_GetEnsembleMappingDict\fR and \fBTcl_SetEnsembleMappingDict\fR
 respectively. The result of both of those functions is a Tcl result
-code (TCL_OK, or TCL_ERROR if the token does not refer to an
+code (\fBTCL_OK\fR, or \fBTCL_ERROR\fR if the token does not refer to an
 ensemble) and the dictionary obtained from
 \fBTcl_GetEnsembleMappingDict\fR should always be treated as immutable
 even if it is unshared.
 All command names in prefixes set via \fBTcl_SetEnsembleMappingDict\fR
 must be fully qualified.
 .TP
+\fBformal pre-subcommand parameter list\fR (read-write)
+.
+A list of formal parameter names (the names only being used when generating
+error messages) that come at invocation of the ensemble between the name of
+the ensemble and the subcommand argument. NULL (the default) is equivalent to
+the empty list. May be read and written using
+\fBTcl_GetEnsembleParameterList\fR and \fBTcl_SetEnsembleParameterList\fR
+respectively. The result of both of those functions is a Tcl result code
+(\fBTCL_OK\fR, or \fBTCL_ERROR\fR if the token does not refer to an
+ensemble) and the
+dictionary obtained from \fBTcl_GetEnsembleParameterList\fR should always be
+treated as immutable even if it is unshared.
+.TP
 \fBsubcommand list\fR (read-write)
+.
 A list of all the subcommand names for the ensemble, or NULL if this
 is to be derived from either the keys of the mapping dictionary (see
 above) or (if that is also NULL) from the set of commands exported by
 the bound namespace. May be read and written using
 \fBTcl_GetEnsembleSubcommandList\fR and
 \fBTcl_SetEnsembleSubcommandList\fR respectively. The result of both
-of those functions is a Tcl result code (TCL_OK, or TCL_ERROR if the
+of those functions is a Tcl result code (\fBTCL_OK\fR, or
+\fBTCL_ERROR\fR if the
 token does not refer to an ensemble) and the list obtained from
 \fBTcl_GetEnsembleSubcommandList\fR should always be treated as
 immutable even if it is unshared.
 .TP
 \fBunknown subcommand handler command prefix\fR (read-write)
+.
 A list of words to prepend on the front of any subcommand when the
 subcommand is unknown to the ensemble (according to the current prefix
 handling rule); see the \fBnamespace ensemble\fR command for more
@@ -171,18 +195,42 @@ details. If NULL, the default behavior \- generate a suitable error
 message \- will be used when an unknown subcommand is encountered. May
 be read and written using \fBTcl_GetEnsembleUnknownHandler\fR and
 \fBTcl_SetEnsembleUnknownHandler\fR respectively. The result of both
-functions is a Tcl result code (TCL_OK, or TCL_ERROR if the token does
+functions is a Tcl result code (\fBTCL_OK\fR, or \fBTCL_ERROR\fR if
+the token does
 not refer to an ensemble) and the list obtained from
 \fBTcl_GetEnsembleUnknownHandler\fR should always be treated as
 immutable even if it is unshared.
 .TP
 \fBbound namespace\fR (read-only)
+.
 The namespace to which the ensemble is bound; when the namespace is
 deleted, so too will the ensemble, and this namespace is also the
 namespace whose list of exported commands is used if both the mapping
 dictionary and the subcommand list properties are NULL. May be read
 using \fBTcl_GetEnsembleNamespace\fR which returns a Tcl result code
-(TCL_OK, or TCL_ERROR if the token does not refer to an ensemble).
-
+(\fBTCL_OK\fR, or \fBTCL_ERROR\fR if the token does not refer to an ensemble).
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+\fBTcl_FindEnsemble\fR does not modify the reference count of its
+\fIcmdNameObj\fR argument; it only reads. Note however that this function may
+set the interpreter result; if that is the only place that is holding a
+reference to the object, it will be deleted.
+.PP
+The ensemble property getters (\fBTcl_GetEnsembleMappingDict\fR,
+\fBTcl_GetEnsembleParameterList\fR, \fBTcl_GetEnsembleSubcommandList\fR, and
+\fBTcl_GetEnsembleUnknownHandler\fR) do not manipulate the reference count of
+the values they provide out; if those are non-NULL, they will have a reference
+count of at least 1.  Note that these functions may set the interpreter
+result.
+.PP
+The ensemble property setters (\fBTcl_SetEnsembleMappingDict\fR,
+\fBTcl_SetEnsembleParameterList\fR, \fBTcl_SetEnsembleSubcommandList\fR, and
+\fBTcl_SetEnsembleUnknownHandler\fR) will increment the reference count of the
+new value of the property they are given if they succeed (and decrement the
+reference count of the old value of the property, if relevant). If the
+property setters return \fBTCL_ERROR\fR, the reference count of the Tcl_Obj
+argument is left unchanged.
 .SH "SEE ALSO"
 namespace(n), Tcl_DeleteCommandFromToken(3)
+.SH KEYWORDS
+command, ensemble
diff --git a/doc/Environment.3 b/doc/Environment.3
index dee693b..da1d4f4 100644
--- a/doc/Environment.3
+++ b/doc/Environment.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_PutEnv 3 "7.5" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -15,6 +15,7 @@ Tcl_PutEnv \- procedures to manipulate the environment
 .sp
 int
 \fBTcl_PutEnv\fR(\fIassignment\fR)
+.fi
 .SH ARGUMENTS
 .AS "const char" *assignment
 .AP "const char" *assignment in
@@ -33,6 +34,6 @@ Tcl-based applications using \fBputenv\fR should redefine it to
 \fBTcl_PutEnv\fR so that they will interface properly to the Tcl
 runtime.
 .SH "SEE ALSO"
-tclvars(n)
+env(n)
 .SH KEYWORDS
 environment, variable
diff --git a/doc/Eval.3 b/doc/Eval.3
index 92dce7c..bfef423 100644
--- a/doc/Eval.3
+++ b/doc/Eval.3
@@ -5,12 +5,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_Eval 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_EvalObjEx, Tcl_EvalFile, Tcl_EvalObjv, Tcl_Eval, Tcl_EvalEx, Tcl_GlobalEval, Tcl_GlobalEvalObj, Tcl_VarEval, Tcl_VarEvalVA \- execute Tcl scripts
+Tcl_EvalObjEx, Tcl_EvalFile, Tcl_EvalObjv, Tcl_Eval, Tcl_EvalEx, Tcl_GlobalEval, Tcl_GlobalEvalObj, Tcl_VarEval \- execute Tcl scripts
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -37,27 +37,25 @@ int
 \fBTcl_GlobalEvalObj\fR(\fIinterp, objPtr\fR)
 .sp
 int
-\fBTcl_VarEval\fR(\fIinterp, part, part, ... \fB(char *) NULL\fR)
-.sp
-int
-\fBTcl_VarEvalVA\fR(\fIinterp, argList\fR)
+\fBTcl_VarEval\fR(\fIinterp, part, part, ... \fB(char *)NULL\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp **termPtr
 .AP Tcl_Interp *interp in
 Interpreter in which to execute the script.  The interpreter's result is
 modified to hold the result or error message from the script.
 .AP Tcl_Obj *objPtr in
-A Tcl object containing the script to execute.
+A Tcl value containing the script to execute.
 .AP int flags in
-ORed combination of flag bits that specify additional options.
+OR'ed combination of flag bits that specify additional options.
 \fBTCL_EVAL_GLOBAL\fR and \fBTCL_EVAL_DIRECT\fR are currently supported.
 .AP "const char" *fileName in
 Name of a file containing a Tcl script.
-.AP int objc in
-The number of objects in the array pointed to by \fIobjPtr\fR;
+.AP Tcl_Size objc in
+The number of values in the array pointed to by \fIobjv\fR;
 this is also the number of words in the command.
 .AP Tcl_Obj **objv in
-Points to an array of pointers to objects; each object holds the
+Points to an array of pointers to values; each value holds the
 value of a single word in the command to execute.
 .AP int numBytes in
 The number of bytes in \fIscript\fR, not including any
@@ -65,11 +63,8 @@ null terminating character.  If \-1, then all characters up to the
 first null byte are used.
 .AP "const char" *script in
 Points to first byte of script to execute (null-terminated and UTF-8).
-.AP char *part in
+.AP "const char" *part in
 String forming part of a Tcl script.
-.AP va_list argList in
-An argument list which must have been initialized using
-\fBva_start\fR, and cleared using \fBva_end\fR.
 .BE
 
 .SH DESCRIPTION
@@ -83,7 +78,7 @@ If this is the first time \fIobjPtr\fR has been executed,
 its commands are compiled into bytecode instructions
 which are then executed.  The
 bytecodes are saved in \fIobjPtr\fR so that the compilation step
-can be skipped if the object is evaluated again in the future.
+can be skipped if the value is evaluated again in the future.
 .PP
 The return value from \fBTcl_EvalObjEx\fR (and all the other procedures
 described here) is a Tcl completion code with
@@ -99,27 +94,25 @@ its contents as a Tcl script.  It returns the same information as
 If the file could not be read then a Tcl error is returned to describe
 why the file could not be read.
 The eofchar for files is
-.QW \e32
+.QW \ex1A
 (^Z) for all platforms. If you require a
 .QW ^Z
 in code for string comparison, you can use
-.QW \e032
-or
-.QW \eu001a ,
+.QW \ex1A ,
 which will be safely substituted by the Tcl interpreter into
 .QW ^Z .
 .PP
-\fBTcl_EvalObjv\fR executes a single pre-parsed command instead of a
+\fBTcl_EvalObjv\fR executes a single preparsed command instead of a
 script.  The \fIobjc\fR and \fIobjv\fR arguments contain the values
-of the words for the Tcl command, one word in each object in
+of the words for the Tcl command, one word in each value in
 \fIobjv\fR.  \fBTcl_EvalObjv\fR evaluates the command and returns
 a completion code and result just like \fBTcl_EvalObjEx\fR.
 The caller of \fBTcl_EvalObjv\fR has to manage the reference count of the
-elements of \fIobjv\fR, insuring that the objects are valid until
-\fBTcl_EvalObjv\fR returns.  
+elements of \fIobjv\fR, insuring that the values are valid until
+\fBTcl_EvalObjv\fR returns.
 .PP
 \fBTcl_Eval\fR is similar to \fBTcl_EvalObjEx\fR except that the script to
-be executed is supplied as a string instead of an object and no compilation
+be executed is supplied as a string instead of a value and no compilation
 occurs.  The string should be a proper UTF-8 string as converted by
 \fBTcl_ExternalToUtfDString\fR or \fBTcl_ExternalToUtf\fR when it is known
 to possibly contain upper ASCII characters whose possible combinations
@@ -127,17 +120,11 @@ might be a UTF-8 special code.  The string is parsed and executed directly
 (using \fBTcl_EvalObjv\fR) instead of compiling it and executing the
 bytecodes.  In situations where it is known that the script will never be
 executed again, \fBTcl_Eval\fR may be faster than \fBTcl_EvalObjEx\fR.
- \fBTcl_Eval\fR returns a completion code and result just like 
-\fBTcl_EvalObjEx\fR.  Note: for backward compatibility with versions before
-Tcl 8.0, \fBTcl_Eval\fR copies the object result in \fIinterp\fR to
-\fIinterp->result\fR (use is deprecated) where it can be accessed directly.
- This makes \fBTcl_Eval\fR somewhat slower than \fBTcl_EvalEx\fR, which
-does not do the copy.
+ \fBTcl_Eval\fR returns a completion code and result just like
+\fBTcl_EvalObjEx\fR.
 .PP
 \fBTcl_EvalEx\fR is an extended version of \fBTcl_Eval\fR that takes
-additional arguments \fInumBytes\fR and \fIflags\fR.  For the
-efficiency reason given above, \fBTcl_EvalEx\fR is generally preferred
-over \fBTcl_Eval\fR.
+additional arguments \fInumBytes\fR and \fIflags\fR.
 .PP
 \fBTcl_GlobalEval\fR and \fBTcl_GlobalEvalObj\fR are older procedures
 that are now deprecated.  They are similar to \fBTcl_EvalEx\fR and
@@ -150,33 +137,32 @@ equivalent to using the \fBTCL_EVAL_GLOBAL\fR flag (see below).
 of any length, concatenates them into a single string,
 then calls \fBTcl_Eval\fR to execute that string as a Tcl command.
 It returns the result of the command and also modifies
-\fIinterp->result\fR in the same way as \fBTcl_Eval\fR.
-The last argument to \fBTcl_VarEval\fR must be NULL to indicate the end
-of arguments.  \fBTcl_VarEval\fR is now deprecated.
-.PP
-\fBTcl_VarEvalVA\fR is the same as \fBTcl_VarEval\fR except that
-instead of taking a variable number of arguments it takes an argument
-list. Like \fBTcl_VarEval\fR, \fBTcl_VarEvalVA\fR is deprecated.
+the interpreter result in the same way as \fBTcl_Eval\fR.
+The last argument to \fBTcl_VarEval\fR must be (char *)NULL to indicate the end
+of arguments.
 
 .SH "FLAG BITS"
-Any ORed combination of the following values may be used for the
+.PP
+Any OR'ed combination of the following values may be used for the
 \fIflags\fR argument to procedures such as \fBTcl_EvalObjEx\fR:
 .TP 23
 \fBTCL_EVAL_DIRECT\fR
+.
 This flag is only used by \fBTcl_EvalObjEx\fR; it is ignored by
 other procedures.  If this flag bit is set, the script is not
 compiled to bytecodes; instead it is executed directly
 as is done by \fBTcl_EvalEx\fR.  The
 \fBTCL_EVAL_DIRECT\fR flag is useful in situations where the
-contents of an object are going to change immediately, so the
+contents of a value are going to change immediately, so the
 bytecodes will not be reused in a future execution.  In this case,
 it is faster to execute the script directly.
 .TP 23
 \fBTCL_EVAL_GLOBAL\fR
-If this flag is set, the script is processed at global level.  This
-means that it is evaluated in the global namespace and its variable
-context consists of global variables only (it ignores any Tcl
-procedures at are active).
+.
+If this flag is set, the script is evaluated in the global namespace instead of
+the current namespace and its variable context consists of global variables
+only (it ignores any Tcl procedures that are active).
+.\" TODO: document TCL_EVAL_INVOKE and TCL_EVAL_NOERR.
 
 .SH "MISCELLANEOUS DETAILS"
 .PP
@@ -202,7 +188,21 @@ and sets \fIinterp\fR's result to an error message indicating that
 the \fBreturn\fR, \fBbreak\fR, or \fBcontinue\fR command was
 invoked in an inappropriate place.
 This means that top-level applications should never see a return code
-from \fBTcl_EvalObjEx\fR other then \fBTCL_OK\fR or \fBTCL_ERROR\fR.
+from \fBTcl_EvalObjEx\fR other than \fBTCL_OK\fR or \fBTCL_ERROR\fR.
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+\fBTcl_EvalObjEx\fR and \fBTcl_GlobalEvalObj\fR both increment and
+decrement the reference count of their \fIobjPtr\fR argument; you must
+not pass them any value with a reference count of zero. They also
+manipulate the interpreter result; you must not count on the
+interpreter result to hold the reference count of any value over
+these calls.
+.PP
+\fBTcl_EvalObjv\fR may increment and decrement the reference count of
+any value passed via its \fIobjv\fR argument; you must not pass any
+value with a reference count of zero. This function also manipulates
+the interpreter result; you must not count on the interpreter result
+to hold the reference count of any value over this call.
 
 .SH KEYWORDS
-execute, file, global, object, result, script
+execute, file, global, result, script, value
diff --git a/doc/Exit.3 b/doc/Exit.3
index 1738dbe..d791f60 100644
--- a/doc/Exit.3
+++ b/doc/Exit.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_Exit 3 8.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -29,22 +29,21 @@ Tcl_Exit, Tcl_Finalize, Tcl_CreateExitHandler, Tcl_DeleteExitHandler, Tcl_ExitTh
 .sp
 \fBTcl_DeleteThreadExitHandler\fR(\fIproc, clientData\fR)
 .sp
-.VS 8.5
 Tcl_ExitProc *
 \fBTcl_SetExitProc\fR(\fIproc\fR)
-.VE 8.5
+.fi
 .SH ARGUMENTS
 .AS Tcl_ExitProc clientData
 .AP int status  in
 Provides information about why the application or thread exited.
-Exact meaning may
-be platform-specific.  0 usually means a normal exit, any nonzero value
+Exact meaning may be platform-specific.
+0 usually means a normal exit, any nonzero value
 usually means that an error occurred.
 .AP Tcl_ExitProc *proc in
 Procedure to invoke before exiting application, or (for
 \fBTcl_SetExitProc\fR) NULL to uninstall the current application exit
 procedure.
-.AP ClientData clientData in
+.AP void *clientData in
 Arbitrary one-word value to pass to \fIproc\fR.
 .BE
 
@@ -55,33 +54,27 @@ execution of a \fBTcl\fR application. Exit handlers are invoked to cleanup the
 application's state before ending the execution of \fBTcl\fR code.
 .PP
 Invoke \fBTcl_Exit\fR to end a \fBTcl\fR application and to exit from this
-process. This procedure is invoked by the \fBexit\fR command, and can be
+process. This procedure is invoked by the \fBexit\fR Tcl command, and can be
 invoked anyplace else to terminate the application.
-No-one should ever invoke the \fBexit\fR system procedure directly;  always
+No-one should ever invoke the \fBexit()\fR system call directly;  always
 invoke \fBTcl_Exit\fR instead, so that it can invoke exit handlers.
-Note that if other code invokes \fBexit\fR system procedure directly, or
+Note that if other code invokes \fBexit()\fR system call directly, or
 otherwise causes the application to terminate without calling
 \fBTcl_Exit\fR, the exit handlers will not be run.
-\fBTcl_Exit\fR internally invokes the \fBexit\fR system call, thus it never
+\fBTcl_Exit\fR internally invokes the \fBexit()\fR system call, thus it never
 returns control to its caller.
-.VS 8.5
 If an application exit handler has been installed (see
 \fBTcl_SetExitProc\fR), that handler is invoked with an argument
-consisting of the exit status (cast to ClientData); the application
+consisting of the exit status (cast to void *); the application
 exit handler should not return control to Tcl.
-.VE 8.5
 .PP
 \fBTcl_Finalize\fR is similar to \fBTcl_Exit\fR except that it does not
 exit from the current process.
 It is useful for cleaning up when a process is finished using \fBTcl\fR but
 wishes to continue executing, and when \fBTcl\fR is used in a dynamically
 loaded extension that is about to be unloaded.
-On some systems \fBTcl\fR is automatically notified when it is being
-unloaded, and it calls \fBTcl_Finalize\fR internally; on these systems it
-not necessary for the caller to explicitly call \fBTcl_Finalize\fR.
-However, to ensure portability, your code should always invoke
-\fBTcl_Finalize\fR when \fBTcl\fR is being unloaded, to ensure that the
-code will work on all platforms. \fBTcl_Finalize\fR can be safely called
+Your code should always invoke \fBTcl_Finalize\fR when \fBTcl\fR is being
+unloaded, to ensure proper cleanup. \fBTcl_Finalize\fR can be safely called
 more than once.
 .PP
 \fBTcl_ExitThread\fR is used to terminate the current thread and invoke
@@ -98,9 +91,12 @@ by \fBTcl_FinalizeThread\fR and \fBTcl_ExitThread\fR.
 This provides a hook for cleanup operations such as flushing buffers
 and freeing global memory.
 \fIProc\fR should match the type \fBTcl_ExitProc\fR:
+.PP
 .CS
-typedef void Tcl_ExitProc(ClientData \fIclientData\fR);
+typedef void \fBTcl_ExitProc\fR(
+        void *\fIclientData\fR);
 .CE
+.PP
 The \fIclientData\fR parameter to \fIproc\fR is a
 copy of the \fIclientData\fR argument given to
 \fBTcl_CreateExitHandler\fR or \fBTcl_CreateThreadExitHandler\fR when
@@ -116,7 +112,6 @@ indicated by \fIproc\fR and \fIclientData\fR so that no call
 to \fIproc\fR will be made.  If no such handler exists then
 \fBTcl_DeleteExitHandler\fR or \fBTcl_DeleteThreadExitHandler\fR does nothing.
 .PP
-.PP
 \fBTcl_Finalize\fR and \fBTcl_Exit\fR execute all registered exit handlers,
 in reverse order from the order in which they were registered.
 This matches the natural order in which extensions are loaded and unloaded;
@@ -126,13 +121,12 @@ If extension \fBA\fR registers its exit handlers before loading extension
 \fBB\fR, this ensures that any exit handlers for \fBB\fR will be executed
 before the exit handlers for \fBA\fR.
 .PP
-\fBTcl_Finalize\fR and \fBTcl_Exit\fR call \fBTcl_FinalizeThread\fR 
+\fBTcl_Finalize\fR and \fBTcl_Exit\fR call \fBTcl_FinalizeThread\fR
 and the thread exit handlers \fIafter\fR
 the process-wide exit handlers.  This is because thread finalization shuts
 down the I/O channel system, so any attempt at I/O by the global exit
 handlers will vanish into the bitbucket.
 .PP
-.VS 8.5
 \fBTcl_SetExitProc\fR installs an application exit handler, returning
 the previously-installed application exit handler or NULL if no
 application handler was installed.  If an application exit handler is
@@ -140,8 +134,11 @@ installed, that exit handler takes over complete responsibility for
 finalization of Tcl's subsystems via \fBTcl_Finalize\fR at an
 appropriate time.  The argument passed to \fIproc\fR when it is
 invoked will be the exit status code (as passed to \fBTcl_Exit\fR)
-cast to a ClientData value.
-.VE 8.5
-
+cast to a void *value.
+.PP
+\fBTcl_SetExitProc\fR can not be used in stub-enabled extensions.
+.SH "SEE ALSO"
+exit(n)
 .SH KEYWORDS
-callback, cleanup, dynamic loading, end application, exit, unloading, thread
+abort, callback, cleanup, dynamic loading, end application, exit, unloading,
+thread
diff --git a/doc/ExprLong.3 b/doc/ExprLong.3
index 33d68ba..8d5e06d 100644
--- a/doc/ExprLong.3
+++ b/doc/ExprLong.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_ExprLong 3 7.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -25,12 +25,13 @@ int
 .sp
 int
 \fBTcl_ExprString\fR(\fIinterp, expr\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp *booleanPtr out
 .AP Tcl_Interp *interp in
 Interpreter in whose context to evaluate \fIexpr\fR.
 .AP "const char" *expr in
-Expression to be evaluated.  
+Expression to be evaluated.
 .AP long *longPtr out
 Pointer to location in which to store the integer value of the
 expression.
@@ -49,11 +50,11 @@ given by the \fIexpr\fR argument
 and return the result in one of four different forms.
 The expression can have any of the forms accepted by the \fBexpr\fR command.
 Note that these procedures have been largely replaced by the
-object-based procedures \fBTcl_ExprLongObj\fR, \fBTcl_ExprDoubleObj\fR,
+value-based procedures \fBTcl_ExprLongObj\fR, \fBTcl_ExprDoubleObj\fR,
 \fBTcl_ExprBooleanObj\fR, and \fBTcl_ExprObj\fR.
-Those object-based procedures evaluate an expression held in a Tcl object
+Those value-based procedures evaluate an expression held in a Tcl value
 instead of a string.
-The object argument can retain an internal representation
+The value argument can retain an internal representation
 that is more efficient to execute.
 .PP
 The \fIinterp\fR argument refers to an interpreter used to
@@ -103,4 +104,4 @@ string stored in the interpreter's result.
 Tcl_ExprLongObj, Tcl_ExprDoubleObj, Tcl_ExprBooleanObj, Tcl_ExprObj
 
 .SH KEYWORDS
-boolean, double, evaluate, expression, integer, object, string
+boolean, double, evaluate, expression, integer, value, string
diff --git a/doc/ExprLongObj.3 b/doc/ExprLongObj.3
index 9dd7f0b..09f83dd 100644
--- a/doc/ExprLongObj.3
+++ b/doc/ExprLongObj.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_ExprLongObj 3 8.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -24,12 +24,13 @@ int
 .sp
 int
 \fBTcl_ExprObj\fR(\fIinterp, objPtr, resultPtrPtr\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp **resultPtrPtr out
 .AP Tcl_Interp *interp in
 Interpreter in whose context to evaluate \fIobjPtr\fR.
 .AP Tcl_Obj *objPtr in
-Pointer to an object containing the expression to evaluate.
+Pointer to a value containing the expression to evaluate.
 .AP long *longPtr out
 Pointer to location in which to store the integer value of the
 expression.
@@ -40,7 +41,7 @@ expression.
 Pointer to location in which to store the 0/1 boolean value of the
 expression.
 .AP Tcl_Obj **resultPtrPtr out
-Pointer to location in which to store a pointer to the object
+Pointer to location in which to store a pointer to the value
 that is the result of the expression.
 .BE
 
@@ -93,14 +94,23 @@ or
 or else an error occurs.
 .PP
 If \fBTcl_ExprObj\fR successfully evaluates the expression,
-it stores a pointer to the Tcl object
+it stores a pointer to the Tcl value
 containing the expression's value at \fI*resultPtrPtr\fR.
 In this case, the caller is responsible for calling
-\fBTcl_DecrRefCount\fR to decrement the object's reference count
-when it is finished with the object.
+\fBTcl_DecrRefCount\fR to decrement the value's reference count
+when it is finished with the value.
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+\fBTcl_ExprLongObj\fR, \fBTcl_ExprDoubleObj\fR,
+\fBTcl_ExprBooleanObj\fR, and \fBTcl_ExprObj\fR all increment and
+decrement the reference count of their \fIobjPtr\fR arguments; you
+must not pass them any value with a reference count of zero. They also
+manipulate the interpreter result; you must not count on the
+interpreter result to hold the reference count of any value over these
+calls.
 
 .SH "SEE ALSO"
 Tcl_ExprLong, Tcl_ExprDouble, Tcl_ExprBoolean, Tcl_ExprString, Tcl_GetObjResult
 
 .SH KEYWORDS
-boolean, double, evaluate, expression, integer, object, string
+boolean, double, evaluate, expression, integer, value, string
diff --git a/doc/FileSystem.3 b/doc/FileSystem.3
index 7954ac8..86f96e6 100644
--- a/doc/FileSystem.3
+++ b/doc/FileSystem.3
@@ -1,14 +1,15 @@
 '\"
 '\" Copyright (c) 2001 Vincent Darley
+'\" Copyright (c) 2008-2010 Donal K. Fellows
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Filesystem 3 8.4 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_FSRegister, Tcl_FSUnregister, Tcl_FSData, Tcl_FSMountsChanged, Tcl_FSGetFileSystemForPath, Tcl_FSGetPathType, Tcl_FSCopyFile, Tcl_FSCopyDirectory, Tcl_FSCreateDirectory, Tcl_FSDeleteFile, Tcl_FSRemoveDirectory, Tcl_FSRenameFile, Tcl_FSListVolumes, Tcl_FSEvalFile, Tcl_FSEvalFileEx, Tcl_FSLoadFile, Tcl_FSMatchInDirectory, Tcl_FSLink, Tcl_FSLstat, Tcl_FSUtime, Tcl_FSFileAttrsGet, Tcl_FSFileAttrsSet, Tcl_FSFileAttrStrings, Tcl_FSStat, Tcl_FSAccess, Tcl_FSOpenFileChannel, Tcl_FSGetCwd, Tcl_FSChdir, Tcl_FSPathSeparator, Tcl_FSJoinPath, Tcl_FSSplitPath, Tcl_FSEqualPaths, Tcl_FSGetNormalizedPath, Tcl_FSJoinToPath, Tcl_FSConvertToPathType, Tcl_FSGetInternalRep, Tcl_FSGetTranslatedPath, Tcl_FSGetTranslatedStringPath, Tcl_FSNewNativePath, Tcl_FSGetNativePath, Tcl_FSFileSystemInfo, Tcl_AllocStatBuf \- procedures to interact with any filesystem
+Tcl_FSRegister, Tcl_FSUnregister, Tcl_FSData, Tcl_FSMountsChanged, Tcl_FSGetFileSystemForPath, Tcl_FSGetPathType, Tcl_FSCopyFile, Tcl_FSCopyDirectory, Tcl_FSCreateDirectory, Tcl_FSDeleteFile, Tcl_FSRemoveDirectory, Tcl_FSRenameFile, Tcl_FSListVolumes, Tcl_FSEvalFile, Tcl_FSEvalFileEx, Tcl_FSLoadFile, Tcl_FSUnloadFile, Tcl_FSMatchInDirectory, Tcl_FSLink, Tcl_FSLstat, Tcl_FSUtime, Tcl_FSFileAttrsGet, Tcl_FSFileAttrsSet, Tcl_FSFileAttrStrings, Tcl_FSStat, Tcl_FSAccess, Tcl_FSOpenFileChannel, Tcl_FSGetCwd, Tcl_FSChdir, Tcl_FSPathSeparator, Tcl_FSJoinPath, Tcl_FSSplitPath, Tcl_FSEqualPaths, Tcl_FSGetNormalizedPath, Tcl_FSJoinToPath, Tcl_FSConvertToPathType, Tcl_FSGetInternalRep, Tcl_FSGetTranslatedPath, Tcl_FSGetTranslatedStringPath, Tcl_FSNewNativePath, Tcl_FSGetNativePath, Tcl_FSFileSystemInfo, Tcl_GetAccessTimeFromStat, Tcl_GetBlockSizeFromStat, Tcl_GetBlocksFromStat, Tcl_GetChangeTimeFromStat, Tcl_GetDeviceTypeFromStat, Tcl_GetFSDeviceFromStat, Tcl_GetFSInodeFromStat, Tcl_GetGroupIdFromStat, Tcl_GetLinkCountFromStat, Tcl_GetModeFromStat, Tcl_GetModificationTimeFromStat, Tcl_GetSizeFromStat, Tcl_GetUserIdFromStat, Tcl_AllocStatBuf, Tcl_FSTildeExpand \- procedures to interact with any filesystem
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -19,13 +20,12 @@ int
 int
 \fBTcl_FSUnregister\fR(\fIfsPtr\fR)
 .sp
-ClientData
+void *
 \fBTcl_FSData\fR(\fIfsPtr\fR)
 .sp
-void
 \fBTcl_FSMountsChanged\fR(\fIfsPtr\fR)
 .sp
-Tcl_Filesystem*
+const Tcl_Filesystem *
 \fBTcl_FSGetFileSystemForPath\fR(\fIpathPtr\fR)
 .sp
 Tcl_PathType
@@ -44,30 +44,31 @@ int
 \fBTcl_FSDeleteFile\fR(\fIpathPtr\fR)
 .sp
 int
-\fBTcl_FSRemoveDirectory\fR(\fIpathPtr, int recursive, errorPtr\fR)
+\fBTcl_FSRemoveDirectory\fR(\fIpathPtr, recursive, errorPtr\fR)
 .sp
 int
 \fBTcl_FSRenameFile\fR(\fIsrcPathPtr, destPathPtr\fR)
 .sp
-Tcl_Obj*
+Tcl_Obj *
 \fBTcl_FSListVolumes\fR(\fIvoid\fR)
 .sp
-.VS 8.5
 int
 \fBTcl_FSEvalFileEx\fR(\fIinterp, pathPtr, encodingName\fR)
-.VE 8.5
 .sp
 int
 \fBTcl_FSEvalFile\fR(\fIinterp, pathPtr\fR)
 .sp
 int
 \fBTcl_FSLoadFile\fR(\fIinterp, pathPtr, sym1, sym2, proc1Ptr, proc2Ptr,
-               handlePtr, unloadProcPtr\fR)
+               loadHandlePtr, unloadProcPtr\fR)
+.sp
+int
+\fBTcl_FSUnloadFile\fR(\fIinterp, loadHandle\fR)
 .sp
 int
 \fBTcl_FSMatchInDirectory\fR(\fIinterp, resultPtr, pathPtr, pattern, types\fR)
 .sp
-Tcl_Obj*
+Tcl_Obj *
 \fBTcl_FSLink\fR(\fIlinkNamePtr, toPtr, linkAction\fR)
 .sp
 int
@@ -77,12 +78,12 @@ int
 \fBTcl_FSUtime\fR(\fIpathPtr, tval\fR)
 .sp
 int
-\fBTcl_FSFileAttrsGet\fR(\fIinterp, int index, pathPtr, objPtrRef\fR)
+\fBTcl_FSFileAttrsGet\fR(\fIinterp, index, pathPtr, objPtrRef\fR)
 .sp
 int
-\fBTcl_FSFileAttrsSet\fR(\fIinterp, int index, pathPtr, Tcl_Obj *objPtr\fR)
+\fBTcl_FSFileAttrsSet\fR(\fIinterp, index, pathPtr, objPtr\fR)
 .sp
-const char**
+const char *const *
 \fBTcl_FSFileAttrStrings\fR(\fIpathPtr, objPtrRef\fR)
 .sp
 int
@@ -94,34 +95,34 @@ int
 Tcl_Channel
 \fBTcl_FSOpenFileChannel\fR(\fIinterp, pathPtr, modeString, permissions\fR)
 .sp
-Tcl_Obj*
+Tcl_Obj *
 \fBTcl_FSGetCwd\fR(\fIinterp\fR)
 .sp
 int
 \fBTcl_FSChdir\fR(\fIpathPtr\fR)
 .sp
-Tcl_Obj*
+Tcl_Obj *
 \fBTcl_FSPathSeparator\fR(\fIpathPtr\fR)
 .sp
-Tcl_Obj*
+Tcl_Obj *
 \fBTcl_FSJoinPath\fR(\fIlistObj, elements\fR)
 .sp
-Tcl_Obj*
+Tcl_Obj *
 \fBTcl_FSSplitPath\fR(\fIpathPtr, lenPtr\fR)
 .sp
 int
 \fBTcl_FSEqualPaths\fR(\fIfirstPtr, secondPtr\fR)
 .sp
-Tcl_Obj*
+Tcl_Obj *
 \fBTcl_FSGetNormalizedPath\fR(\fIinterp, pathPtr\fR)
 .sp
-Tcl_Obj*
+Tcl_Obj *
 \fBTcl_FSJoinToPath\fR(\fIbasePtr, objc, objv\fR)
 .sp
 int
 \fBTcl_FSConvertToPathType\fR(\fIinterp, pathPtr\fR)
 .sp
-ClientData
+void *
 \fBTcl_FSGetInternalRep\fR(\fIpathPtr, fsPtr\fR)
 .sp
 Tcl_Obj *
@@ -130,25 +131,70 @@ Tcl_Obj *
 const char *
 \fBTcl_FSGetTranslatedStringPath\fR(\fIinterp, pathPtr\fR)
 .sp
-Tcl_Obj*
+Tcl_Obj *
 \fBTcl_FSNewNativePath\fR(\fIfsPtr, clientData\fR)
 .sp
-const char *
+const void *
 \fBTcl_FSGetNativePath\fR(\fIpathPtr\fR)
 .sp
-Tcl_Obj*
+Tcl_Obj *
 \fBTcl_FSFileSystemInfo\fR(\fIpathPtr\fR)
 .sp
-Tcl_StatBuf*
+int
+\fBTcl_FSTildeExpand\fR(\fIinterp, pathStr, dsPtr\fR)
+.sp
+Tcl_StatBuf *
 \fBTcl_AllocStatBuf\fR()
+.sp
+long long
+\fBTcl_GetAccessTimeFromStat\fR(\fIstatPtr\fR)
+.sp
+unsigned
+\fBTcl_GetBlockSizeFromStat\fR(\fIstatPtr\fR)
+.sp
+unsigned long long
+\fBTcl_GetBlocksFromStat\fR(\fIstatPtr\fR)
+.sp
+long long
+\fBTcl_GetChangeTimeFromStat\fR(\fIstatPtr\fR)
+.sp
+int
+\fBTcl_GetDeviceTypeFromStat\fR(\fIstatPtr\fR)
+.sp
+unsigned
+\fBTcl_GetFSDeviceFromStat\fR(\fIstatPtr\fR)
+.sp
+unsigned
+\fBTcl_GetFSInodeFromStat\fR(\fIstatPtr\fR)
+.sp
+int
+\fBTcl_GetGroupIdFromStat\fR(\fIstatPtr\fR)
+.sp
+int
+\fBTcl_GetLinkCountFromStat\fR(\fIstatPtr\fR)
+.sp
+unsigned
+\fBTcl_GetModeFromStat\fR(\fIstatPtr\fR)
+.sp
+long long
+\fBTcl_GetModificationTimeFromStat\fR(\fIstatPtr\fR)
+.sp
+unsigned long long
+\fBTcl_GetSizeFromStat\fR(\fIstatPtr\fR)
+.sp
+int
+\fBTcl_GetUserIdFromStat\fR(\fIstatPtr\fR)
+.fi
 .SH ARGUMENTS
-.AS Tcl_FSUnloadFileProc **unloadProcPtr out
-.AP Tcl_Filesystem *fsPtr in
+.AS Tcl_GlobTypeData **srcPathPtr out
+.AP "const Tcl_Filesystem" *fsPtr in
 Points to a structure containing the addresses of procedures that
 can be called to perform the various filesystem operations.
+.AP "const char" *pathStr in
+Pointer to a NUL terminated string representing a file system path.
 .AP Tcl_Obj *pathPtr in
-The path represented by this object is used for the operation in
-question.  If the object does not already have an internal \fBpath\fR
+The path represented by this value is used for the operation in
+question. If the value does not already have an internal \fBpath\fR
 representation, it will be converted to have one.
 .AP Tcl_Obj *srcPathPtr in
 As for \fIpathPtr\fR, but used for the source file for a copy or
@@ -156,6 +202,8 @@ rename operation.
 .AP Tcl_Obj *destPathPtr in
 As for \fIpathPtr\fR, but used for the destination filename for a copy or
 rename operation.
+.AP int recursive in
+Whether to remove subdirectories and their contents as well.
 .AP "const char" *encodingName in
 The encoding of the data stored in the
 file identified by \fIpathPtr\fR and to be evaluated.
@@ -163,36 +211,40 @@ file identified by \fIpathPtr\fR and to be evaluated.
 Only files or directories matching this pattern will be returned.
 .AP Tcl_GlobTypeData *types in
 Only files or directories matching the type descriptions contained in
-this structure will be returned.  This parameter may be NULL.
+this structure will be returned. This parameter may be NULL.
 .AP Tcl_Interp *interp in
 Interpreter to use either for results, evaluation, or reporting error
 messages.
-.AP ClientData clientData in
-The native description of the path object to create.
+.AP void *clientData in
+The native description of the path value to create.
 .AP Tcl_Obj *firstPtr in
-The first of two path objects to compare.  The object may be converted
+The first of two path values to compare. The value may be converted
 to \fBpath\fR type.
 .AP Tcl_Obj *secondPtr in
-The second of two path objects to compare.  The object may be converted
+The second of two path values to compare. The value may be converted
 to \fBpath\fR type.
 .AP Tcl_Obj *listObj in
 The list of path elements to operate on with a \fBjoin\fR operation.
-.AP int elements in
-If non-negative, the number of elements in the \fIlistObj\fR which should
-be joined together.  If negative, then all elements are joined.
+.AP Tcl_Size elements in
+The number of elements in the \fIlistObj\fR which should
+be joined together. If negative, then all elements are joined.
 .AP Tcl_Obj **errorPtr out
-In the case of an error, filled with an object containing the name of
+In the case of an error, filled with a value containing the name of
 the file which caused an error in the various copy/rename operations.
+.AP int index in
+The index of the attribute in question.
+.AP Tcl_Obj *objPtr in
+The value to set in the operation.
 .AP Tcl_Obj **objPtrRef out
-Filled with an object containing the result of the operation.
+Filled with a value containing the result of the operation.
 .AP Tcl_Obj *resultPtr out
-Pre-allocated object in which to store (using
+Preallocated value in which to store (using
 \fBTcl_ListObjAppendElement\fR) the list of
 files or directories which are successfully matched.
 .AP int mode in
-Mask consisting of one or more of R_OK, W_OK, X_OK and F_OK.  R_OK,
+Mask consisting of one or more of R_OK, W_OK, X_OK and F_OK. R_OK,
 W_OK and X_OK request checking whether the file exists and  has  read,
-write and  execute  permissions, respectively.  F_OK just requests
+write and  execute  permissions, respectively. F_OK just requests
 checking for the existence of the file.
 .AP Tcl_StatBuf *statPtr out
 The structure that contains the result of a stat or lstat operation.
@@ -200,31 +252,38 @@ The structure that contains the result of a stat or lstat operation.
 Name of a procedure to look up in the file's symbol table
 .AP "const char" *sym2 in
 Name of a procedure to look up in the file's symbol table
-.AP Tcl_PackageInitProc **proc1Ptr out
+.AP Tcl_LibraryInitProc **proc1Ptr out
 Filled with the init function for this code.
-.AP Tcl_PackageInitProc **proc2Ptr out
+.AP Tcl_LibraryInitProc **proc2Ptr out
 Filled with the safe-init function for this code.
-.AP ClientData *clientDataPtr out
+.AP void **clientDataPtr out
 Filled with the clientData value to pass to this code's unload
 function when it is called.
-.AP Tcl_LoadHandle *handlePtr out
+.AP Tcl_LoadHandle *loadHandlePtr out
 Filled with an abstract token representing the loaded file.
 .AP Tcl_FSUnloadFileProc **unloadProcPtr out
 Filled with the function to use to unload this piece of code.
+.AP Tcl_LoadHandle loadHandle in
+Handle to the loaded library to be unloaded.
 .AP utimbuf *tval in
 The access and modification times in this structure are read and
 used to set those values for a given file.
 .AP "const char" *modeString in
-Specifies how the file is to be accessed.  May have any of the values
+Specifies how the file is to be accessed. May have any of the values
 allowed for the \fImode\fR argument to the Tcl \fBopen\fR command.
 .AP int permissions in
-POSIX-style permission flags such as 0644.  If a new file is created, these
+POSIX-style permission flags such as 0644. If a new file is created, these
 permissions will be set on the created file.
-.AP int *lenPtr out
-If non-NULL, filled with the number of elements in the split path.
+.AP "Tcl_Size \&| int" *lenPtr out
+Filled with the number of elements in the split path.
+May be (Tcl_Size *)NULL when not used. If it points to a variable which
+type is not \fBTcl_Size\fR, a compiler warning will be generated.
+If your extensions is compiled with -DTCL_8_API, this function will return
+NULL for paths having more than INT_MAX elements (which should
+trigger proper error-handling), otherwise expect it to crash.
 .AP Tcl_Obj *basePtr in
-The base path on to which to join the given elements.  May be NULL.
-.AP int objc in
+The base path on to which to join the given elements. May be NULL.
+.AP Tcl_Size objc in
 The number of elements in \fIobjv\fR.
 .AP "Tcl_Obj *const" objv[] in
 The elements to join to the given base path.
@@ -239,32 +298,33 @@ created (will be ignored if \fItoPtr\fR is NULL). Valid bits to set
 are \fBTCL_CREATE_SYMBOLIC_LINK\fR and \fBTCL_CREATE_HARD_LINK\fR.
 When both flags are set and the underlying filesystem can do either,
 symbolic links are preferred.
+.AP Tcl_DString *dsPtr out
+Pointer to a \fBTcl_DString\fR to hold an output string result.
 .BE
-
 .SH DESCRIPTION
 .PP
 There are several reasons for calling the \fBTcl_FS\fR API functions
-(e.g. \fBTcl_FSAccess\fR and \fBTcl_FSStat\fR)
+(e.g.\ \fBTcl_FSAccess\fR and \fBTcl_FSStat\fR)
 rather than calling system level functions like \fBaccess\fR and
-\fBstat\fR directly.  First, they will work cross-platform, so an
+\fBstat\fR directly. First, they will work cross-platform, so an
 extension which calls them should work unmodified on Unix and
-Windows.  Second, the Windows implementation of some of these functions
-fixes some bugs in the system level calls.  Third, these function calls
+Windows. Second, the Windows implementation of some of these functions
+fixes some bugs in the system level calls. Third, these function calls
 deal with any
 .QW "Utf to platform-native"
 path conversions which may be
 required (and may cache the results of such conversions for greater
-efficiency on subsequent calls).  Fourth, and perhaps most importantly,
+efficiency on subsequent calls). Fourth, and perhaps most importantly,
 all of these functions are
 .QW "virtual filesystem aware" .
 Any virtual filesystem (VFS for short) which has been registered (through
 \fBTcl_FSRegister\fR) may reroute file access to alternative
-media or access methods.  This means that all of these functions (and
+media or access methods. This means that all of these functions (and
 therefore the corresponding \fBfile\fR, \fBglob\fR, \fBpwd\fR, \fBcd\fR,
-\fBopen\fR, etc.  Tcl commands) may be operate on
+\fBopen\fR, etc.\ Tcl commands) may be operate on
 .QW files
 which are not
-native files in the native filesystem.  This also means that any Tcl
+native files in the native filesystem. This also means that any Tcl
 extension which accesses the filesystem (FS for short) through this API is
 automatically
 .QW "virtual filesystem aware" .
@@ -275,43 +335,45 @@ APIs, for example), then Tcl cannot intercept such calls.
 If appropriate VFSes have been registered, the
 .QW files
 may, to give two
-examples, be remote (e.g. situated on a remote ftp server) or archived
-(e.g. lying inside a .zip archive).  Such registered filesystems provide
+examples, be remote (e.g.\ situated on a remote ftp server) or archived
+(e.g.\ lying inside a .zip archive). Such registered filesystems provide
 a lookup table of functions to implement all or some of the functionality
-listed here.  Finally, the \fBTcl_FSStat\fR and \fBTcl_FSLstat\fR calls
+listed here. Finally, the \fBTcl_FSStat\fR and \fBTcl_FSLstat\fR calls
 abstract away from what the
 .QW "struct stat"
 buffer is actually
 declared to be, allowing the same code to be used both on systems with
 and systems without support for files larger than 2GB in size.
 .PP
-The \fBTcl_FS\fR API is objectified and may cache internal
-representations and other path-related strings (e.g. the current working
-directory).  One side-effect of this is that one must not pass in objects
-with a reference count of zero to any of these functions.  If such calls were
+The \fBTcl_FS\fR API is \fBTcl_Obj\fR-ified and may cache internal
+representations and other path-related strings (e.g.\ the current working
+directory). One side-effect of this is that one must not pass in values
+with a reference count of zero to any of these functions. If such calls were
 handled, they might result
 in memory leaks (under some circumstances, the filesystem code may wish
-to retain a reference to the passed in object, and so one must not assume
-that after any of these calls return, the object still has a reference count of
+to retain a reference to the passed in value, and so one must not assume
+that after any of these calls return, the value still has a reference count of
 zero - it may have been incremented) or in a direct segmentation fault
 (or other memory access error)
-due to the object being freed part way through the complex object
+due to the value being freed part way through the complex value
 manipulation required to ensure that the path is fully normalized and
-absolute for filesystem determination.  The practical lesson to learn
+absolute for filesystem determination. The practical lesson to learn
 from this is that
+.PP
 .CS
 Tcl_Obj *path = Tcl_NewStringObj(...);
 Tcl_FS\fIWhatever\fR(path);
 Tcl_DecrRefCount(path);
 .CE
+.PP
 is wrong, and may cause memory errors. The \fIpath\fR must have its
 reference count incremented before passing it in, or
-decrementing it.  For this reason, objects with a reference count of zero are
+decrementing it. For this reason, values with a reference count of zero are
 considered not to be valid filesystem paths and calling any Tcl_FS API
-function with such an object will result in no action being taken.
+function with such a value will result in no action being taken.
 .SS "FS API FUNCTIONS"
 \fBTcl_FSCopyFile\fR attempts to copy the file given by \fIsrcPathPtr\fR to the
-path name given by \fIdestPathPtr\fR.  If the two paths given lie in the same
+path name given by \fIdestPathPtr\fR. If the two paths given lie in the same
 filesystem (according to \fBTcl_FSGetFileSystemForPath\fR) then that
 filesystem's
 .QW "copy file"
@@ -322,8 +384,9 @@ variable to the
 POSIX error code (which signifies a
 .QW "cross-domain link" ).
 .PP
-\fBTcl_FSCopyDirectory\fR attempts to copy the directory given by \fIsrcPathPtr\fR to the
-path name given by \fIdestPathPtr\fR.  If the two paths given lie in the same
+\fBTcl_FSCopyDirectory\fR attempts to copy the directory given by
+\fIsrcPathPtr\fR to the
+path name given by \fIdestPathPtr\fR. If the two paths given lie in the same
 filesystem (according to \fBTcl_FSGetFileSystemForPath\fR) then that
 filesystem's
 .QW "copy file"
@@ -350,11 +413,11 @@ function.
 function.
 .PP
 \fBTcl_FSRenameFile\fR attempts to rename the file or directory given by
-\fIsrcPathPtr\fR to the path name given by \fIdestPathPtr\fR.  If the two paths
+\fIsrcPathPtr\fR to the path name given by \fIdestPathPtr\fR. If the two paths
 given lie in the same filesystem (according to
 \fBTcl_FSGetFileSystemForPath\fR) then that filesystem's
 .QW "rename file"
-function is called (if it is non-NULL).  Otherwise the function returns -1
+function is called (if it is non-NULL). Otherwise the function returns -1
 and sets the \fBerrno\fR global C variable to the
 .QW EXDEV
 POSIX error code (which signifies a
@@ -362,98 +425,104 @@ POSIX error code (which signifies a
 .PP
 \fBTcl_FSListVolumes\fR calls each filesystem which has a non-NULL
 .QW "list volumes"
-function and asks them to return their list of root volumes.  It
+function and asks them to return their list of root volumes. It
 accumulates the return values in a list which is returned to the
 caller (with a reference count of 0).
 .PP
-.VS 8.5
 \fBTcl_FSEvalFileEx\fR reads the file given by \fIpathPtr\fR using
 the encoding identified by \fIencodingName\fR and evaluates
-its contents as a Tcl script.  It returns the same information as
+its contents as a Tcl script. It returns the same information as
 \fBTcl_EvalObjEx\fR.
-If \fIencodingName\fR is NULL, the system encoding is used for
+If \fIencodingName\fR is NULL, the utf-8 encoding is used for
 reading the file contents.
 If the file could not be read then a Tcl error is returned to describe
 why the file could not be read.
 The eofchar for files is
-.QW \e32
+.QW \ex1A
 (^Z) for all platforms.
 If you require a
 .QW ^Z
 in code for string comparison, you can use
-.QW \e032
-or
-.QW \eu001a ,
+.QW \ex1A ,
 which will be safely substituted by the Tcl interpreter into
 .QW ^Z .
 \fBTcl_FSEvalFile\fR is a simpler version of
-\fBTcl_FSEvalFileEx\fR that always uses the system encoding
+\fBTcl_FSEvalFileEx\fR that always uses the utf-8 encoding
 when reading the file.
-.VE 8.5
 .PP
 \fBTcl_FSLoadFile\fR dynamically loads a binary code file into memory and
 returns the addresses of two procedures within that file, if they are
-defined.  The appropriate function for the filesystem to which \fIpathPtr\fR
-belongs will be called.  If that filesystem does not implement this
+defined. The appropriate function for the filesystem to which \fIpathPtr\fR
+belongs will be called. If that filesystem does not implement this
 function (most virtual filesystems will not, because of OS limitations
 in dynamically loading binary code), Tcl will attempt to copy the file
 to a temporary directory and load that temporary file.
+\fBTcl_FSUnloadFile\fR reverses the operation, asking for the library
+indicated by the \fIloadHandle\fR to be removed from the process. Note that,
+unlike with the \fBunload\fR command, this does not give the library any
+opportunity to clean up.
 .PP
-Returns a standard Tcl completion code.  If an error occurs, an error
-message is left in the \fIinterp\fR's result.
+Both the above functions return a standard Tcl completion code. If an error
+occurs, an error message is left in the \fIinterp\fR's result.
+.PP
+The token provided via the variable indicated by \fIloadHandlePtr\fR may be
+used with \fBTcl_FindSymbol\fR.
 .PP
 \fBTcl_FSMatchInDirectory\fR is used by the globbing code to search a
-directory for all files which match a given pattern.  The appropriate
+directory for all files which match a given pattern. The appropriate
 function for the filesystem to which \fIpathPtr\fR belongs will be called.
 .PP
 The return value is a standard Tcl result indicating whether an error
-occurred in globbing.  Error messages are placed in interp (unless 
-interp is NULL, which is allowed), but good results are placed in the 
+occurred in globbing. Error messages are placed in interp (unless
+interp is NULL, which is allowed), but good results are placed in the
 resultPtr given.
 .PP
 Note that the \fBglob\fR code implements recursive patterns internally, so
 this function will only ever be passed simple patterns, which can be
-matched using the logic of \fBstring match\fR.  To handle recursion, Tcl
+matched using the logic of \fBstring match\fR. To handle recursion, Tcl
 will call this function frequently asking only for directories to be
-returned.  A special case of being called with a NULL pattern indicates
+returned. A special case of being called with a NULL pattern indicates
 that the path needs to be checked only for the correct type.
 .PP
 \fBTcl_FSLink\fR replaces the library version of \fBreadlink\fR, and
-extends it to support the creation of links.  The appropriate function
+extends it to support the creation of links. The appropriate function
 for the filesystem to which \fIlinkNamePtr\fR belongs will be called.
 .PP
 If the \fItoPtr\fR is NULL, a
 .QW "read link"
-action is performed.  The result
+action is performed. The result
 is a Tcl_Obj specifying the contents of the symbolic link given by
-\fIlinkNamePtr\fR, or NULL if the link could not be read.  The result is owned
-by the caller, which should call Tcl_DecrRefCount when the result is no
-longer needed.  If the \fItoPtr\fR is not NULL, Tcl should create a link
-of one of the types passed in in the \fIlinkAction\fR flag.  This flag is
-an ORed combination of \fBTCL_CREATE_SYMBOLIC_LINK\fR and \fBTCL_CREATE_HARD_LINK\fR.
-Where a choice exists (i.e. more than one flag is passed in), the Tcl
-convention is to prefer symbolic links.  When a link is successfully
+\fIlinkNamePtr\fR, or NULL if the link could not be read. The result is owned
+by the caller, which should call \fBTcl_DecrRefCount\fR when the result is no
+longer needed. If the \fItoPtr\fR is not NULL, Tcl should create a link
+of one of the types passed in in the \fIlinkAction\fR flag.
+This flag is an OR'ed combination of \fBTCL_CREATE_SYMBOLIC_LINK\fR
+and \fBTCL_CREATE_HARD_LINK\fR.
+Where a choice exists (i.e.\ more than one flag is passed in), the Tcl
+convention is to prefer symbolic links. When a link is successfully
 created, the return value should be \fItoPtr\fR (which is therefore
-already owned by the caller).  If unsuccessful, NULL is returned.
+already owned by the caller). If unsuccessful, NULL is returned.
 .PP
-\fBTcl_FSLstat\fR fills the stat structure \fIstatPtr\fR with information
-about the specified file.  You do not need any access rights to the
+\fBTcl_FSLstat\fR fills the \fITcl_StatBuf\fR structure \fIstatPtr\fR with
+information about the specified file. You do not need any access rights to the
 file to get this information but you need search rights to all
-directories named in the path leading to the file.  The stat structure
-includes info regarding device, inode (always 0 on Windows),
+directories named in the path leading to the file. The \fITcl_StatBuf\fR
+structure includes info regarding device, inode (always 0 on Windows),
 privilege mode, nlink (always 1 on Windows), user id (always 0 on
 Windows), group id (always 0 on Windows), rdev (same as device on
 Windows), size, last access time, last modification time, and
 last metadata change time.
+See \fBPORTABLE STAT RESULT API\fR for a description of how to write
+portable code to allocate and access the \fITcl_StatBuf\fR structure.
 .PP
 If \fIpath\fR exists, \fBTcl_FSLstat\fR returns 0 and the stat structure
-is filled with data.  Otherwise, -1 is returned, and no stat info is
+is filled with data. Otherwise, -1 is returned, and no stat info is
 given.
 .PP
 \fBTcl_FSUtime\fR replaces the library version of utime.
 .PP
 This returns 0 on success and -1 on error (as per the \fButime\fR
-documentation).  If successful, the function
+documentation). If successful, the function
 will update the
 .QW atime
 and
@@ -461,51 +530,53 @@ and
 values of the file given.
 .PP
 \fBTcl_FSFileAttrsGet\fR implements read access for the hookable \fBfile
-attributes\fR subcommand.  The appropriate function for the filesystem to
+attributes\fR subcommand. The appropriate function for the filesystem to
 which \fIpathPtr\fR belongs will be called.
 .PP
-If the result is \fBTCL_OK\fR, then an object was placed in
+If the result is \fBTCL_OK\fR, then a value was placed in
 \fIobjPtrRef\fR, which
 will only be temporarily valid (unless \fBTcl_IncrRefCount\fR is called).
 .PP
 \fBTcl_FSFileAttrsSet\fR implements write access for the hookable \fBfile
-attributes\fR subcommand.  The appropriate function for the filesystem to
+attributes\fR subcommand. The appropriate function for the filesystem to
 which \fIpathPtr\fR belongs will be called.
 .PP
 \fBTcl_FSFileAttrStrings\fR implements part of the hookable \fBfile
-attributes\fR subcommand.  The appropriate function for the filesystem
+attributes\fR subcommand. The appropriate function for the filesystem
 to which \fIpathPtr\fR belongs will be called.
 .PP
 The called procedure may either return an array of strings, or may
-instead return NULL and place a Tcl list into the given \fIobjPtrRef\fR.  Tcl
+instead return NULL and place a Tcl list into the given \fIobjPtrRef\fR. Tcl
 will take that list and first increment its reference count before using it.
-On completion of that use, Tcl will decrement its reference count.  Hence if
+On completion of that use, Tcl will decrement its reference count. Hence if
 the list should be disposed of by Tcl when done, it should have a
 reference count of zero, and if the list should not be disposed of, the
-filesystem should ensure it retains a reference count to the object.
+filesystem should ensure it retains a reference count to the value.
 .PP
 \fBTcl_FSAccess\fR checks whether the process would be allowed to read,
 write or test for existence of the file (or other filesystem object)
-whose name is \fIpathname\fR.   If \fIpathname\fR is a symbolic link on Unix,
+whose name is \fIpathname\fR. If \fIpathname\fR is a symbolic link on Unix,
 then permissions of the file referred by this symbolic link are
 tested.
 .PP
-On success (all requested permissions granted), zero is returned.  On
+On success (all requested permissions granted), zero is returned. On
 error (at least one bit in mode asked for a permission that is denied,
 or some other error occurred), -1 is returned.
 .PP
-\fBTcl_FSStat\fR fills the stat structure \fIstatPtr\fR with information
-about the specified file.  You do not need any access rights to the
+\fBTcl_FSStat\fR fills the \fITcl_StatBuf\fR structure \fIstatPtr\fR with
+information about the specified file. You do not need any access rights to the
 file to get this information but you need search rights to all
-directories named in the path leading to the file.  The stat structure
-includes info regarding device, inode (always 0 on Windows),
+directories named in the path leading to the file. The \fITcl_StatBuf\fR
+structure includes info regarding device, inode (always 0 on Windows),
 privilege mode, nlink (always 1 on Windows), user id (always 0 on
 Windows), group id (always 0 on Windows), rdev (same as device on
 Windows), size, last access time, last modification time, and
 last metadata change time.
+See \fBPORTABLE STAT RESULT API\fR for a description of how to write
+portable code to allocate and access the \fITcl_StatBuf\fR structure.
 .PP
 If \fIpath\fR exists, \fBTcl_FSStat\fR returns 0 and the stat structure
-is filled with data.  Otherwise, -1 is returned, and no stat info is
+is filled with data. Otherwise, -1 is returned, and no stat info is
 given.
 .PP
 \fBTcl_FSOpenFileChannel\fR opens a file specified by \fIpathPtr\fR and
@@ -522,187 +593,174 @@ leaves an error message in \fIinterp\fR's result after any error.
 .PP
 The newly created channel is not registered in the supplied interpreter; to
 register it, use \fBTcl_RegisterChannel\fR.
-If one of the standard channels, \fBstdin, stdout\fR or \fBstderr\fR was
+If one of the standard channels, \fBstdin\fR, \fBstdout\fR or \fBstderr\fR was
 previously closed, the act of creating the new channel also assigns it as a
 replacement for the standard channel.
 .PP
 \fBTcl_FSGetCwd\fR replaces the library version of \fBgetcwd\fR.
 .PP
-It returns the Tcl library's current working directory.  This may be
+It returns the Tcl library's current working directory. This may be
 different to the native platform's working directory, which happens when
 the current working directory is not in the native filesystem.
 .PP
 The result is a pointer to a Tcl_Obj specifying the current directory,
-or NULL if the current directory could not be determined.  If NULL is
+or NULL if the current directory could not be determined. If NULL is
 returned, an error message is left in the \fIinterp\fR's result.
 .PP
-The result already has its reference count incremented for the caller.  When
-it is no longer needed, that reference count should be decremented.  This is
+The result already has its reference count incremented for the caller. When
+it is no longer needed, that reference count should be decremented. This is
 needed for thread-safety purposes, to allow multiple threads to access
 this and related functions, while ensuring the results are always
 valid.
 .PP
-\fBTcl_FSChdir\fR replaces the library version of \fBchdir\fR.  The path is
-normalized and then passed to the filesystem which claims it.  If that
+\fBTcl_FSChdir\fR replaces the library version of \fBchdir\fR. The path is
+normalized and then passed to the filesystem which claims it. If that
 filesystem does not implement this function, Tcl will fallback to a
 combination of \fBstat\fR and \fBaccess\fR to check whether the directory
 exists and has appropriate permissions.
 .PP
-For results, see \fBchdir\fR documentation.  If successful, we keep a
+For results, see \fBchdir\fR documentation. If successful, we keep a
 record of the successful path in \fIcwdPathPtr\fR for subsequent calls to
 \fBTcl_FSGetCwd\fR.
 .PP
 \fBTcl_FSPathSeparator\fR returns the separator character to be used for
-most specific element of the path specified by \fIpathPtr\fR (i.e. the last
+most specific element of the path specified by \fIpathPtr\fR (i.e.\ the last
 part of the path).
 .PP
 The separator is returned as a Tcl_Obj containing a string of length
-1.  If the path is invalid, NULL is returned.
+1. If the path is invalid, NULL is returned.
 .PP
 \fBTcl_FSJoinPath\fR takes the given Tcl_Obj, which must be a valid
 list (which is allowed to have a reference count of zero), and returns the path
-object given by considering the first \fIelements\fR elements as valid path
+value given by considering the first \fIelements\fR elements as valid path
 segments (each path segment may be a complete path, a partial path or
-just a single possible directory or file name).  If any path segment is
+just a single possible directory or file name). If any path segment is
 actually an absolute path, then all prior path segments are discarded.
 If \fIelements\fR is less than 0, we use the entire list.
 .PP
-It is possible that the returned object is actually an element
+It is possible that the returned value is actually an element
 of the given list, so the caller should be careful to increment the
 reference count of the result before freeing the list.
 .PP
-The returned object, typically with a reference count of zero (but it
+The returned value, typically with a reference count of zero (but it
 could be shared
-under some conditions), contains the joined path.  The caller must
-add a reference count to the object before using it.  In particular, the
-returned object could be an element of the given list, so freeing the
-list might free the object prematurely if no reference count has been taken.
-If the number of elements is zero, then the returned object will be
+under some conditions), contains the joined path. The caller must
+add a reference count to the value before using it. In particular, the
+returned value could be an element of the given list, so freeing the
+list might free the value prematurely if no reference count has been taken.
+If the number of elements is zero, then the returned value will be
 an empty-string Tcl_Obj.
 .PP
 \fBTcl_FSSplitPath\fR takes the given Tcl_Obj, which should be a valid path,
-and returns a Tcl list object containing each segment of that path as
+and returns a Tcl list value containing each segment of that path as
 an element.
-It returns a list object with a reference count of zero.  If the
+It returns a list value with a reference count of zero. If the
 passed in \fIlenPtr\fR is non-NULL, the variable it points to will be
 updated to contain the number of elements in the returned list.
 .PP
 \fBTcl_FSEqualPaths\fR tests whether the two paths given represent the same
-filesystem object
-.PP
-It returns 1 if the paths are equal, and 0 if they are different.  If
+filesystem object.
+It returns 1 if the paths are equal, and 0 if they are different. If
 either path is NULL, 0 is always returned.
 .PP
-\fBTcl_FSGetNormalizedPath\fR this important function attempts to extract
+\fBTcl_FSGetNormalizedPath\fR attempts to extract
 from the given Tcl_Obj a unique normalized path representation, whose
 string value can be used as a unique identifier for the file.
 .PP
-It returns the normalized path object, owned by Tcl, or NULL if the path
+It returns the normalized path value, owned by Tcl, or NULL if the path
 was invalid or could otherwise not be successfully converted.
 Extraction of absolute, normalized paths is very efficient (because the
 filesystem operates on these representations internally), although the
 result when the filesystem contains numerous symbolic links may not be
-the most user-friendly version of a path.  The return value is owned by
+the most user-friendly version of a path. The return value is owned by
 Tcl and has a lifetime equivalent to that of the \fIpathPtr\fR passed in
 (unless that is a relative path, in which case the normalized path
-object may be freed any time the cwd changes) - the caller can of
-course increment the refCount if it wishes to maintain a copy for longer.
+value may be freed any time the cwd changes) - the caller can of
+course increment the reference count if it wishes to maintain a copy for longer.
 .PP
-\fBTcl_FSJoinToPath\fR takes the given object, which should usually be a
+\fBTcl_FSJoinToPath\fR takes the given value, which should usually be a
 valid path or NULL, and joins onto it the array of paths segments
 given.
 .PP
-Returns object, typically with refCount of zero (but it could be shared
-under some conditions), containing the joined path.  The caller must
-add a refCount to the object before using it.  If any of the objects
-passed into this function (pathPtr or path elements) have a refCount
+Returns a value, typically with reference count of zero (but it could be shared
+under some conditions), containing the joined path. The caller must
+add a reference count to the value before using it. If any of the values
+passed into this function (\fIpathPtr\fR or \fIpath\fR elements) have
+a reference count
 of zero, they will be freed when this function returns.
 .PP
 \fBTcl_FSConvertToPathType\fR tries to convert the given Tcl_Obj to a valid
 Tcl path type, taking account of the fact that the cwd may have changed
-even if this object is already supposedly of the correct type.
-The filename may begin with
-.QW ~
-(to indicate current user's home directory) or
-.QW ~<user>
-(to indicate any user's home directory).
-.PP
-If the conversion succeeds (i.e. the object is a valid path in one of
-the current filesystems), then \fBTCL_OK\fR is returned.  Otherwise
+even if this value is already supposedly of the correct type.
+.PP
+If the conversion succeeds (i.e.\ the value is a valid path in one of
+the current filesystems), then \fBTCL_OK\fR is returned. Otherwise
 \fBTCL_ERROR\fR is returned, and an error message may
 be left in the interpreter.
 .PP
 \fBTcl_FSGetInternalRep\fR extracts the internal representation of a given
-path object, in the given filesystem.  If the path object belongs to a
+path value, in the given filesystem. If the path value belongs to a
 different filesystem, we return NULL. If the internal representation is
 currently NULL, we attempt to generate it, by calling the filesystem's
 \fBTcl_FSCreateInternalRepProc\fR.
 .PP
-Returns NULL or a valid internal path representation.  This internal
+Returns NULL or a valid internal path representation. This internal
 representation is cached, so that repeated calls to this function will
 not require additional conversions.
 .PP
 \fBTcl_FSGetTranslatedPath\fR attempts to extract the translated path
 from the given Tcl_Obj.
 .PP
-If the translation succeeds (i.e. the object is a valid path), then it is
-returned.  Otherwise NULL will be returned, and an error message may be
-left in the interpreter.  A
-.QW translated
-path is one which contains no
-.QW ~
-or
-.QW ~user
-sequences (these have been expanded to their current
-representation in the filesystem).  The object returned is owned by the
-caller, which must store it or call Tcl_DecrRefCount to ensure memory is
-freed.  This function is of little practical use, and
-\fBTcl_FSGetNormalizedPath\fR or \fBTcl_GetNativePath\fR are usually
+If the translation succeeds (i.e.\ the value is a valid path), then it is
+returned. Otherwise NULL will be returned, and an error message may be
+left in the interpreter. The value returned is owned by the
+caller, which must store it or call \fBTcl_DecrRefCount\fR to ensure memory is
+freed. This function is of little practical use, and
+\fBTcl_FSGetNormalizedPath\fR or \fBTcl_FSGetNativePath\fR are usually
 better functions to use for most purposes.
 .PP
 \fBTcl_FSGetTranslatedStringPath\fR does the same as
 \fBTcl_FSGetTranslatedPath\fR, but returns a character string or NULL.
 The string returned is dynamically allocated and owned by the caller,
-which must store it or call \fBckfree\fR to ensure it is freed.  Again,
-\fBTcl_FSGetNormalizedPath\fR or \fBTcl_GetNativePath\fR are usually
+which must store it or call \fBTcl_Free\fR to ensure it is freed. Again,
+\fBTcl_FSGetNormalizedPath\fR or \fBTcl_FSGetNativePath\fR are usually
 better functions to use for most purposes.
 .PP
 \fBTcl_FSNewNativePath\fR performs something like the reverse of the
-usual obj->path->nativerep conversions.  If some code retrieves a path
-in native form (from, e.g. \fBreadlink\fR or a native dialog), and that path
+usual obj->path->nativerep conversions. If some code retrieves a path
+in native form (from, e.g.\ \fBreadlink\fR or a native dialog), and that path
 is to be used at the Tcl level, then calling this function is an
-efficient way of creating the appropriate path object type.
+efficient way of creating the appropriate path value type.
 .PP
-The resulting object is a pure
+The resulting value is a pure
 .QW path
-object, which will only receive
+value, which will only receive
 a UTF-8 string representation if that is required by some Tcl code.
 .PP
 \fBTcl_FSGetNativePath\fR is for use by the Win/Unix native
 filesystems, so that they can easily retrieve the native (char* or
-TCHAR*) representation of a path.  This function is a convenience
-wrapper around \fBTcl_FSGetInternalRep\fR, and assumes the native
-representation is string-based.  It may be desirable in the future to
-have non-string-based native representations (for example, on MacOSX, a
-representation using a fileSpec of FSRef structure would probably be
-more efficient).  On Windows a full Unicode representation would allow
-for paths of unlimited length.  Currently the representation is simply a
-character string which may contain either the relative path or a
-complete, absolute normalized path in the native encoding (complex
+TCHAR*) representation of a path. This function is a convenience
+wrapper around \fBTcl_FSGetInternalRep\fR. It may be desirable in the
+future to have non-string-based native representations (for example,
+on macOS, a representation using a fileSpec of FSRef structure would
+probably be more efficient). On Windows a full Unicode representation
+would allow for paths of unlimited length. Currently the representation
+is simply a character string which may contain either the relative path
+or a complete, absolute normalized path in the native encoding (complex
 conditions dictate which of these will be provided, so neither can be
-relied upon, unless the path is known to be absolute).  If you need a
+relied upon, unless the path is known to be absolute). If you need a
 native path which must be absolute, then you should ask for the native
-version of a normalized path.  If for some reason a non-absolute,
+version of a normalized path. If for some reason a non-absolute,
 non-normalized version of the path is needed, that must be constructed
-separately (e.g. using \fBTcl_FSGetTranslatedPath\fR).
+separately (e.g.\ using \fBTcl_FSGetTranslatedPath\fR).
 .PP
 The native representation is cached so that repeated calls to this
-function will not require additional conversions.  The return value is
+function will not require additional conversions. The return value is
 owned by Tcl and has a lifetime equivalent to that of the \fIpathPtr\fR
 passed in (unless that is a relative path, in which case the native
 representation may be freed any time the cwd changes).
 .PP
-\fBTcl_FSFileSystemInfo\fR returns a list of two elements.  The first
+\fBTcl_FSFileSystemInfo\fR returns a list of two elements. The first
 element is the name of the filesystem (e.g.
 .QW native ,
 .QW vfs ,
@@ -710,14 +768,14 @@ element is the name of the filesystem (e.g.
 or
 .QW prowrap ,
 perhaps), and the second is the particular type of the
-given path within that filesystem (which is filesystem dependent).  The
+given path within that filesystem (which is filesystem dependent). The
 second element may be empty if the filesystem does not provide a
 further categorization of files.
 .PP
-A valid list object is returned, unless the path object is not
+A valid list value is returned, unless the path value is not
 recognized, when NULL will be returned.
 .PP
-\fBTcl_FSGetFileSystemForPath\fR returns the a pointer to the
+\fBTcl_FSGetFileSystemForPath\fR returns a pointer to the
 \fBTcl_Filesystem\fR which accepts this path as valid.
 .PP
 If no filesystem will accept the path, NULL is returned.
@@ -729,11 +787,46 @@ absolute.
 It returns one of \fBTCL_PATH_ABSOLUTE\fR, \fBTCL_PATH_RELATIVE\fR, or
 \fBTCL_PATH_VOLUME_RELATIVE\fR
 .PP
-\fBTcl_AllocStatBuf\fR allocates a \fITcl_StatBuf\fR on the system
-heap (which may be deallocated by being passed to \fBckfree\fR.)  This
-allows extensions to invoke \fBTcl_FSStat\fR and \fBTcl_FSLStat\fR
-without being dependent on the size of the buffer.  That in turn
-depends on the flags used to build Tcl.
+\fBTcl_FSTildeExpand\fR performs tilde substitution on the input path passed via
+\fBpathStr\fR as described in the documentation for the \fBfile tildeexpand\fR
+Tcl command. On success, the function returns \fBTCL_OK\fR with the result of
+the substitution in \fBdsPtr\fR which must be subsequently freed by the caller.
+The \fBdsPtr\fR structure is initialized by the function. No guarantees are made
+about the form of the returned path such as the path separators used. The
+returned result should be passed to other Tcl C API functions such as
+\fBTcl_FSGetNormalizedPath\fR or \fBTcl_FSGetNativePath\fR if necessary. On
+error, the function returns \fBTCL_ERROR\fR with an error message in
+\fBinterp\fR which may be passed as NULL if error messages are not of interest.
+.SS "PORTABLE STAT RESULT API"
+.PP
+\fBTcl_AllocStatBuf\fR allocates a \fITcl_StatBuf\fR on the system heap (which
+may be deallocated by being passed to \fBTcl_Free\fR). This allows extensions to
+invoke \fBTcl_FSStat\fR and \fBTcl_FSLstat\fR without being dependent on the
+size of the buffer. That in turn depends on the flags used to build Tcl.
+.PP
+The portable fields of a \fITcl_StatBuf\fR may be read using the following
+functions, each of which returns the value of the corresponding field listed
+in the table below. Note that on some platforms there may be other fields in
+the \fITcl_StatBuf\fR as it is an alias for a suitable system structure, but
+only the portable ones are made available here. See your system documentation
+for a full description of these fields.
+.DS
+.ta \w'\fBTcl_GetModificationTimeFromStat\fR\0\0\0\0'u
+\fIAccess Function\fR	\fIField\fR
+ \fBTcl_GetFSDeviceFromStat\fR	 st_dev
+ \fBTcl_GetFSInodeFromStat\fR	 st_ino
+ \fBTcl_GetModeFromStat\fR	 st_mode
+ \fBTcl_GetLinkCountFromStat\fR	 st_nlink
+ \fBTcl_GetUserIdFromStat\fR	 st_uid
+ \fBTcl_GetGroupIdFromStat\fR	 st_gid
+ \fBTcl_GetDeviceTypeFromStat\fR	 st_rdev
+ \fBTcl_GetAccessTimeFromStat\fR	 st_atime
+ \fBTcl_GetModificationTimeFromStat\fR	 st_mtime
+ \fBTcl_GetChangeTimeFromStat\fR	 st_ctime
+ \fBTcl_GetSizeFromStat\fR	 st_size
+ \fBTcl_GetBlocksFromStat\fR	 st_blocks
+ \fBTcl_GetBlockSizeFromStat\fR	 st_blksize
+.DE
 .SH "THE VIRTUAL FILESYSTEM API"
 .PP
 A filesystem provides a \fBTcl_Filesystem\fR structure that contains
@@ -745,18 +838,18 @@ The \fBTcl_Filesystem\fR structures are manipulated using the following
 methods.
 .PP
 \fBTcl_FSRegister\fR takes a pointer to a filesystem structure and an
-optional piece of data to associated with that filesystem.  On calling
+optional piece of data to associated with that filesystem. On calling
 this function, Tcl will attach the filesystem to the list of known
-filesystems, and it will become fully functional immediately.  Tcl does
+filesystems, and it will become fully functional immediately. Tcl does
 not check if the same filesystem is registered multiple times (and in
-general that is not a good thing to do).  \fBTCL_OK\fR will be returned.
+general that is not a good thing to do). \fBTCL_OK\fR will be returned.
 .PP
 \fBTcl_FSUnregister\fR removes the given filesystem structure from
-the list of known filesystems, if it is known, and returns \fBTCL_OK\fR.  If
+the list of known filesystems, if it is known, and returns \fBTCL_OK\fR. If
 the filesystem is not currently registered, \fBTCL_ERROR\fR is returned.
 .PP
-\fBTcl_FSData\fR will return the ClientData associated with the given
-filesystem, if that filesystem is registered.  Otherwise it will
+\fBTcl_FSData\fR will return the clientData associated with the given
+filesystem, if that filesystem is registered. Otherwise it will
 return NULL.
 .PP
 \fBTcl_FSMountsChanged\fR is used to inform the Tcl's core that
@@ -766,10 +859,11 @@ longer be correct.
 .SS "THE TCL_FILESYSTEM STRUCTURE"
 .PP
 The \fBTcl_Filesystem\fR structure contains the following fields:
+.PP
 .CS
-typedef struct Tcl_Filesystem {
+typedef struct {
     const char *\fItypeName\fR;
-    int \fIstructureLength\fR;
+    Tcl_Size \fIstructureLength\fR;
     Tcl_FSVersion \fIversion\fR;
     Tcl_FSPathInFilesystemProc *\fIpathInFilesystemProc\fR;
     Tcl_FSDupInternalRepProc *\fIdupInternalRepProc\fR;
@@ -799,7 +893,7 @@ typedef struct Tcl_Filesystem {
     Tcl_FSLoadFileProc *\fIloadFileProc\fR;
     Tcl_FSGetCwdProc *\fIgetCwdProc\fR;
     Tcl_FSChdirProc *\fIchdirProc\fR;
-} Tcl_Filesystem;
+} \fBTcl_Filesystem\fR;
 .CE
 .PP
 Except for the first three fields in this structure which contain
@@ -813,7 +907,7 @@ implemented), operational functions (which must be implemented if a
 complete filesystem is provided), and efficiency functions (which need
 only be implemented if they can be done so efficiently, or if they have
 side-effects which are required by the filesystem; Tcl has less
-efficient emulations it can fall back on).  It is important to note
+efficient emulations it can fall back on). It is important to note
 that, in the current version of Tcl, most of these fallbacks are only
 used to handle commands initiated in Tcl, not in C. What this means is,
 that if a \fBfile rename\fR command is issued in Tcl, and the relevant
@@ -821,14 +915,14 @@ filesystem(s) do not implement their \fITcl_FSRenameFileProc\fR, Tcl's
 core will instead fallback on a combination of other filesystem
 functions (it will use \fITcl_FSCopyFileProc\fR followed by
 \fITcl_FSDeleteFileProc\fR, and if \fITcl_FSCopyFileProc\fR is not
-implemented there is a further fallback).  However, if a
+implemented there is a further fallback). However, if a
 \fITcl_FSRenameFileProc\fR command is issued at the C level, no such
-fallbacks occur.  This is true except for the last four entries in the
+fallbacks occur. This is true except for the last four entries in the
 filesystem table (\fBlstat\fR, \fBload\fR, \fBgetcwd\fR and \fBchdir\fR)
 for which fallbacks do in fact occur at the C level.
 .PP
 Any functions which take path names in Tcl_Obj form take
-those names in UTF\-8 form.  The filesystem infrastructure API is
+those names in UTF\-8 form. The filesystem infrastructure API is
 designed to support efficient, cached conversion of these UTF\-8 paths
 to other native representations.
 .SS "EXAMPLE FILESYSTEM DEFINITION"
@@ -836,6 +930,7 @@ to other native representations.
 Here is the filesystem lookup table used by the
 .QW vfs
 extension which allows filesystem actions to be implemented in Tcl.
+.PP
 .CS
 static Tcl_Filesystem vfsFilesystem = {
     "tclvfs",
@@ -914,97 +1009,95 @@ The \fIversion\fR field should be set to \fBTCL_FILESYSTEM_VERSION_1\fR.
 .SS PATHINFILESYSTEMPROC
 .PP
 The \fIpathInFilesystemProc\fR field contains the address of a function
-which is called to determine whether a given path object belongs to this
-filesystem or not.  Tcl will only call the rest of the filesystem
+which is called to determine whether a given path value belongs to this
+filesystem or not. Tcl will only call the rest of the filesystem
 functions with a path for which this function has returned \fBTCL_OK\fR.
-If the path does not belong, -1 should be returned (the behaviour of Tcl
-for any other return value is not defined).  If \fBTCL_OK\fR is returned,
+If the path does not belong, -1 should be returned (the behavior of Tcl
+for any other return value is not defined). If \fBTCL_OK\fR is returned,
 then the optional \fIclientDataPtr\fR output parameter can be used to
 return an internal (filesystem specific) representation of the path,
-which will be cached inside the path object, and may be retrieved
-efficiently by the other filesystem functions.  Tcl will simultaneously
-cache the fact that this path belongs to this filesystem.  Such caches
+which will be cached inside the path value, and may be retrieved
+efficiently by the other filesystem functions. Tcl will simultaneously
+cache the fact that this path belongs to this filesystem. Such caches
 are invalidated when filesystem structures are added or removed from
 Tcl's internal list of known filesystems.
 .PP
 .CS
-typedef int Tcl_FSPathInFilesystemProc(
+typedef int \fBTcl_FSPathInFilesystemProc\fR(
         Tcl_Obj *\fIpathPtr\fR,
-        ClientData *\fIclientDataPtr\fR);
+        void **\fIclientDataPtr\fR);
 .CE
 .SS DUPINTERNALREPPROC
 .PP
 This function makes a copy of a path's internal representation, and is
-called when Tcl needs to duplicate a path object.  If NULL, Tcl will
+called when Tcl needs to duplicate a path value. If NULL, Tcl will
 simply not copy the internal representation, which may then need to be
 regenerated later.
 .PP
 .CS
-typedef ClientData Tcl_FSDupInternalRepProc(
-        ClientData \fIclientData\fR);
+typedef void *\fBTcl_FSDupInternalRepProc\fR(
+        void *\fIclientData\fR);
 .CE
 .SS FREEINTERNALREPPROC
-Free the internal representation.  This must be implemented if internal
-representations need freeing (i.e. if some memory is allocated when an
+Free the internal representation. This must be implemented if internal
+representations need freeing (i.e.\ if some memory is allocated when an
 internal representation is generated), but may otherwise be NULL.
 .PP
 .CS
-typedef void Tcl_FSFreeInternalRepProc(
-        ClientData \fIclientData\fR);
+typedef void \fBTcl_FSFreeInternalRepProc\fR(
+        void *\fIclientData\fR);
 .CE
 .SS INTERNALTONORMALIZEDPROC
 .PP
-Function to convert internal representation to a normalized path.  Only
-required if the filesystem creates pure path objects with no string/path
-representation.  The return value is a Tcl object whose string
+Function to convert internal representation to a normalized path. Only
+required if the filesystem creates pure path values with no string/path
+representation. The return value is a Tcl value whose string
 representation is the normalized path.
 .PP
 .CS
-typedef Tcl_Obj* Tcl_FSInternalToNormalizedProc(
-        ClientData \fIclientData\fR);
+typedef Tcl_Obj *\fBTcl_FSInternalToNormalizedProc\fR(
+        void *\fIclientData\fR);
 .CE
 .SS CREATEINTERNALREPPROC
 .PP
-Function to take a path object, and calculate an internal
+Function to take a path value, and calculate an internal
 representation for it, and store that native representation in the
-object.  May be NULL if paths have no internal representation, or if
+value. May be NULL if paths have no internal representation, or if
 the \fITcl_FSPathInFilesystemProc\fR for this filesystem always
 immediately creates an internal representation for paths it accepts.
 .PP
 .CS
-typedef ClientData Tcl_FSCreateInternalRepProc(
+typedef void *\fBTcl_FSCreateInternalRepProc\fR(
         Tcl_Obj *\fIpathPtr\fR);
 .CE
 .SS NORMALIZEPATHPROC
 .PP
-Function to normalize a path.  Should be implemented for all
+Function to normalize a path. Should be implemented for all
 filesystems which can have multiple string representations for the same
-path object.  In Tcl, every
+path value. In Tcl, every
 .QW path
 must have a single unique
 .QW normalized
-string representation.  Depending on the filesystem,
+string representation. Depending on the filesystem,
 there may be more than one unnormalized string representation which
-refers to that path (e.g. a relative path, a path with different
-character case if the filesystem is case insensitive, a path contain a
-reference to a home directory such as
-.QW ~ ,
+refers to that path (e.g.\ a relative path, a path with different
+character case if the filesystem is case insensitive,
 a path containing symbolic
-links, etc).  If the very last component in the path is a symbolic
-link, it should not be converted into the object it points to (but
-its case or other aspects should be made unique).  All other path
-components should be converted from symbolic links.  This one
+links, etc). If the very last component in the path is a symbolic
+link, it should not be converted into the value it points to (but
+its case or other aspects should be made unique). All other path
+components should be converted from symbolic links. This one
 exception is required to agree with Tcl's semantics with \fBfile
 delete\fR, \fBfile rename\fR, \fBfile copy\fR operating on symbolic links.
 This function may be called with \fInextCheckpoint\fR either
-at the beginning of the path (i.e. zero), at the end of the path, or
-at any intermediate file separator in the path.  It will never
+at the beginning of the path (i.e.\ zero), at the end of the path, or
+at any intermediate file separator in the path. It will never
 point to any other arbitrary position in the path. In the last of
 the three valid cases, the implementation can assume that the path
 up to and including the file separator is known and normalized.
 .PP
 .CS
-typedef int Tcl_FSNormalizePathProc(
+typedef int \fBTcl_FSNormalizePathProc\fR(
         Tcl_Interp *\fIinterp\fR,
         Tcl_Obj *\fIpathPtr\fR,
         int \fInextCheckpoint\fR);
@@ -1013,33 +1106,33 @@ typedef int Tcl_FSNormalizePathProc(
 .PP
 The fields in this section of the structure contain addresses of
 functions which are called to carry out the basic filesystem
-operations.  A filesystem which expects to be used with the complete
-standard Tcl command set must implement all of these.  If some of
+operations. A filesystem which expects to be used with the complete
+standard Tcl command set must implement all of these. If some of
 them are not implemented, then certain Tcl commands may fail when
-operating on paths within that filesystem.  However, in some instances
+operating on paths within that filesystem. However, in some instances
 this may be desirable (for example, a read-only filesystem should not
 implement the last four functions, and a filesystem which does not
 support symbolic links need not implement the \fBreadlink\fR function,
-etc.  The Tcl core expects filesystems to behave in this way).
+etc. The Tcl core expects filesystems to behave in this way).
 .SS FILESYSTEMPATHTYPEPROC
 .PP
-Function to determine the type of a path in this filesystem.  May be
+Function to determine the type of a path in this filesystem. May be
 NULL, in which case no type information will be available to users of
-the filesystem.  The
+the filesystem. The
 .QW type
 is used only for informational purposes,
 and should be returned as the string representation of the Tcl_Obj
-which is returned.  A typical return value might be
+which is returned. A typical return value might be
 .QW networked ,
 .QW zip
 or
 .QW ftp .
 The Tcl_Obj result is owned by the filesystem and so Tcl will
-increment the refCount of that object if it wishes to retain a reference
+increment the reference count of that value if it wishes to retain a reference
 to it.
 .PP
 .CS
-typedef Tcl_Obj* Tcl_FSFilesystemPathTypeProc(
+typedef Tcl_Obj *\fBTcl_FSFilesystemPathTypeProc\fR(
         Tcl_Obj *\fIpathPtr\fR);
 .CE
 .SS FILESYSTEMSEPARATORPROC
@@ -1049,30 +1142,30 @@ This need only be implemented if the filesystem wishes to use a
 different separator than the standard string
 .QW / .
 Amongst other
-uses, it is returned by the \fBfile separator\fR command.  The
-return value should be an object with refCount of zero.
+uses, it is returned by the \fBfile separator\fR command. The
+return value should be a value with reference count of zero.
 .PP
 .CS
-typedef Tcl_Obj* Tcl_FSFilesystemSeparatorProc(
+typedef Tcl_Obj *\fBTcl_FSFilesystemSeparatorProc\fR(
         Tcl_Obj *\fIpathPtr\fR);
 .CE
 .SS STATPROC
 .PP
-Function to process a \fBTcl_FSStat\fR call.  Must be implemented for any
+Function to process a \fBTcl_FSStat\fR call. Must be implemented for any
 reasonable filesystem, since many Tcl level commands depend crucially
-upon it (e.g. \fBfile atime\fR, \fBfile isdirectory\fR, \fBfile size\fR,
+upon it (e.g.\ \fBfile atime\fR, \fBfile isdirectory\fR, \fBfile size\fR,
 \fBglob\fR).
 .PP
 .CS
-typedef int Tcl_FSStatProc(
+typedef int \fBTcl_FSStatProc\fR(
         Tcl_Obj *\fIpathPtr\fR,
         Tcl_StatBuf *\fIstatPtr\fR);
 .CE
 .PP
 The \fBTcl_FSStatProc\fR fills the stat structure \fIstatPtr\fR with
-information about the specified file.  You do not need any access
+information about the specified file. You do not need any access
 rights to the file to get this information but you need search rights
-to all directories named in the path leading to the file.  The stat
+to all directories named in the path leading to the file. The stat
 structure includes info regarding device, inode (always 0 on Windows),
 privilege mode, nlink (always 1 on Windows), user id (always 0 on
 Windows), group id (always 0 on Windows), rdev (same as device on
@@ -1081,37 +1174,37 @@ last metadata change time.
 .PP
 If the file represented by \fIpathPtr\fR exists, the
 \fBTcl_FSStatProc\fR returns 0 and the stat structure is filled with
-data.  Otherwise, -1 is returned, and no stat info is given.
+data. Otherwise, -1 is returned, and no stat info is given.
 .SS ACCESSPROC
 .PP
-Function to process a \fBTcl_FSAccess\fR call.  Must be implemented for
+Function to process a \fBTcl_FSAccess\fR call. Must be implemented for
 any reasonable filesystem, since many Tcl level commands depend crucially
-upon it (e.g. \fBfile exists\fR, \fBfile readable\fR).
+upon it (e.g.\ \fBfile exists\fR, \fBfile readable\fR).
 .PP
 .CS
-typedef int Tcl_FSAccessProc(
+typedef int \fBTcl_FSAccessProc\fR(
         Tcl_Obj *\fIpathPtr\fR,
         int \fImode\fR);
 .CE
 .PP
 The \fBTcl_FSAccessProc\fR checks whether the process would be allowed
 to read, write or test for existence of the file (or other filesystem
-object) whose name is in \fIpathPtr\fR.  If the pathname refers to a
+object) whose name is in \fIpathPtr\fR. If the pathname refers to a
 symbolic link, then the
 permissions of the file referred by this symbolic link should be tested.
 .PP
-On success (all requested permissions granted), zero is returned.  On
+On success (all requested permissions granted), zero is returned. On
 error (at least one bit in mode asked for a permission that is denied,
 or some other  error occurred), -1 is returned.
 .SS OPENFILECHANNELPROC
 .PP
-Function to process a \fBTcl_FSOpenFileChannel\fR call.  Must be
+Function to process a \fBTcl_FSOpenFileChannel\fR call. Must be
 implemented for any reasonable filesystem, since any operations
 which require open or accessing a file's contents will use it
-(e.g. \fBopen\fR, \fBencoding\fR, and many Tk commands).
+(e.g.\ \fBopen\fR, \fBencoding\fR, and many Tk commands).
 .PP
 .CS
-typedef Tcl_Channel Tcl_FSOpenFileChannelProc(
+typedef Tcl_Channel \fBTcl_FSOpenFileChannelProc\fR(
         Tcl_Interp *\fIinterp\fR,
         Tcl_Obj *\fIpathPtr\fR,
         int \fImode\fR,
@@ -1120,33 +1213,33 @@ typedef Tcl_Channel Tcl_FSOpenFileChannelProc(
 .PP
 The \fBTcl_FSOpenFileChannelProc\fR opens a file specified by
 \fIpathPtr\fR and returns a channel handle that can be used to perform
-input and output on the file.  This API is modeled after the \fBfopen\fR
-procedure of the Unix standard I/O library.  The syntax and meaning of
+input and output on the file. This API is modeled after the \fBfopen\fR
+procedure of the Unix standard I/O library. The syntax and meaning of
 all arguments is similar to those given in the Tcl \fBopen\fR command
 when opening a file, where the \fImode\fR argument is a combination of
-the POSIX flags O_RDONLY, O_WRONLY, etc.  If an error occurs while
+the POSIX flags O_RDONLY, O_WRONLY, etc. If an error occurs while
 opening the channel, the \fBTcl_FSOpenFileChannelProc\fR returns NULL and
 records a POSIX error code that can be retrieved with \fBTcl_GetErrno\fR.
 In addition, if \fIinterp\fR is non-NULL, the
 \fBTcl_FSOpenFileChannelProc\fR leaves an error message in \fIinterp\fR's
 result after any error.
 .PP
-The newly created channel must not registered in the supplied
-interpreter; that task is up to the caller of
+The newly created channel must not be registered in the supplied interpreter
+by a \fBTcl_FSOpenFileChannelProc\fR; that task is up to the caller of
 \fBTcl_FSOpenFileChannel\fR (if necessary). If one of
-the standard channels, \fBstdin, stdout\fR or \fBstderr\fR was
+the standard channels, \fBstdin\fR, \fBstdout\fR or \fBstderr\fR was
 previously closed, the act of creating the new channel also assigns it
 as a replacement for the standard channel.
 .SS MATCHINDIRECTORYPROC
 .PP
-Function to process a \fBTcl_FSMatchInDirectory\fR call.  If not
+Function to process a \fBTcl_FSMatchInDirectory\fR call. If not
 implemented, then glob and recursive copy functionality will be lacking
 in the filesystem (and this may impact commands like \fBencoding names\fR
 which use glob functionality internally).
 .PP
 .CS
-typedef int Tcl_FSMatchInDirectoryProc(
-        Tcl_Interp* \fIinterp\fR,
+typedef int \fBTcl_FSMatchInDirectoryProc\fR(
+        Tcl_Interp *\fIinterp\fR,
         Tcl_Obj *\fIresultPtr\fR,
         Tcl_Obj *\fIpathPtr\fR,
         const char *\fIpattern\fR,
@@ -1155,63 +1248,64 @@ typedef int Tcl_FSMatchInDirectoryProc(
 .PP
 The function should return all files or directories (or other filesystem
 objects) which match the given pattern and accord with the \fItypes\fR
-specification given.  There are two ways in which this function may be
-called.  If \fIpattern\fR is NULL, then \fIpathPtr\fR is a full path
+specification given. There are two ways in which this function may be
+called. If \fIpattern\fR is NULL, then \fIpathPtr\fR is a full path
 specification of a single file or directory which should be checked for
-existence and correct type.  Otherwise, \fIpathPtr\fR is a directory, the
+existence and correct type. Otherwise, \fIpathPtr\fR is a directory, the
 contents of which the function should search for files or directories
-which have the correct type.  In either case, \fIpathPtr\fR can be
-assumed to be both non-NULL and non-empty.  It is not currently
+which have the correct type. In either case, \fIpathPtr\fR can be
+assumed to be both non-NULL and non-empty. It is not currently
 documented whether \fIpathPtr\fR will have a file separator at its end of
 not, so code should be flexible to both possibilities.
 .PP
 The return value is a standard Tcl result indicating whether an error
-occurred in the matching process.  Error messages are placed in
+occurred in the matching process. Error messages are placed in
 \fIinterp\fR, unless \fIinterp\fR in NULL in which case no error
-message need be generated; on a \fBTCL_OK\fR result, results should be 
-added to the \fIresultPtr\fR object given (which can be assumed to be a 
-valid unshared Tcl list).  The matches added
+message need be generated; on a \fBTCL_OK\fR result, results should be
+added to the \fIresultPtr\fR value given (which can be assumed to be a
+valid unshared Tcl list). The matches added
 to \fIresultPtr\fR should include any path prefix given in \fIpathPtr\fR
 (this usually means they will be absolute path specifications).
 Note that if no matches are found, that simply leads to an empty
 result; errors are only signaled for actual file or filesystem
 problems which may occur during the matching process.
 .PP
-The \fBTcl_GlobTypeData\fR structure passed in the \fItypes\fR 
+The \fBTcl_GlobTypeData\fR structure passed in the \fItypes\fR
 parameter contains the following fields:
+.PP
 .CS
-typedef struct Tcl_GlobTypeData {
-        /* Corresponds to bcdpfls as in 'find -t' */
-        int \fItype\fR;
-        /* Corresponds to file permissions */
-        int \fIperm\fR;
-        /* Acceptable mac type */
-        Tcl_Obj *\fImacType\fR;
-        /* Acceptable mac creator */
-        Tcl_Obj *\fImacCreator\fR;
-} Tcl_GlobTypeData;
+typedef struct {
+    /* Corresponds to bcdpfls as in 'find -t' */
+    int \fItype\fR;
+    /* Corresponds to file permissions */
+    int \fIperm\fR;
+    /* Acceptable mac type */
+    Tcl_Obj *\fImacType\fR;
+    /* Acceptable mac creator */
+    Tcl_Obj *\fImacCreator\fR;
+} \fBTcl_GlobTypeData\fR;
 .CE
 .PP
 There are two specific cases which it is important to handle correctly,
 both when \fItypes\fR is non-NULL. The two cases are when \fItypes->types
 & TCL_GLOB_TYPE_DIR\fR or \fItypes->types & TCL_GLOB_TYPE_MOUNT\fR are
-true (and in particular when the other flags are false).  In the first of
-these cases, the function must list the contained directories.  Tcl uses
+true (and in particular when the other flags are false). In the first of
+these cases, the function must list the contained directories. Tcl uses
 this to implement recursive globbing, so it is critical that filesystems
-implement directory matching correctly.  In the second of these cases,
+implement directory matching correctly. In the second of these cases,
 with \fBTCL_GLOB_TYPE_MOUNT\fR, the filesystem must list the mount points
 which lie within the given \fIpathPtr\fR (and in this case, \fIpathPtr\fR
 need not lie within the same filesystem - different to all other cases in
-which this function is called).  Support for this is critical if Tcl is
+which this function is called). Support for this is critical if Tcl is
 to have seamless transitions between from one filesystem to another.
 .SS UTIMEPROC
 .PP
-Function to process a \fBTcl_FSUtime\fR call.  Required to allow setting
+Function to process a \fBTcl_FSUtime\fR call. Required to allow setting
 (not reading) of times with \fBfile mtime\fR, \fBfile atime\fR and the
 open-r/open-w/fcopy implementation of \fBfile copy\fR.
 .PP
 .CS
-typedef int Tcl_FSUtimeProc(
+typedef int \fBTcl_FSUtimeProc\fR(
         Tcl_Obj *\fIpathPtr\fR,
         struct utimbuf *\fItval\fR);
 .CE
@@ -1223,26 +1317,26 @@ The return value should be 0 on success and -1 on an error, as
 with the system \fButime\fR.
 .SS LINKPROC
 .PP
-Function to process a \fBTcl_FSLink\fR call.  Should be implemented
+Function to process a \fBTcl_FSLink\fR call. Should be implemented
 only if the filesystem supports links, and may otherwise be NULL.
 .PP
 .CS
-typedef Tcl_Obj* Tcl_FSLinkProc(
+typedef Tcl_Obj *\fBTcl_FSLinkProc\fR(
         Tcl_Obj *\fIlinkNamePtr\fR,
         Tcl_Obj *\fItoPtr\fR,
         int \fIlinkAction\fR);
 .CE
 .PP
 If \fItoPtr\fR is NULL, the function is being asked to read the
-contents of a link.  The result is a Tcl_Obj specifying the contents of
+contents of a link. The result is a Tcl_Obj specifying the contents of
 the link given by \fIlinkNamePtr\fR, or NULL if the link could
-not be read.  The result is owned by the caller (and should therefore
-have its ref count incremented before being returned).  Any callers
-should call Tcl_DecrRefCount on this result when it is no longer needed.
+not be read. The result is owned by the caller (and should therefore
+have its ref count incremented before being returned). Any callers
+should call \fBTcl_DecrRefCount\fR on this result when it is no longer needed.
 If \fItoPtr\fR is not NULL, the function should attempt to create a link.
 The result in this case should be \fItoPtr\fR if the link was successful
-and NULL otherwise.  In this case the result is not owned by the caller
-(i.e. no ref count manipulation on either end is needed). See
+and NULL otherwise. In this case the result is not owned by the caller
+(i.e.\ no reference count manipulations on either end are needed). See
 the documentation for \fBTcl_FSLink\fR for the correct interpretation
 of the \fIlinkAction\fR flags.
 .SS LISTVOLUMESPROC
@@ -1252,20 +1346,20 @@ Should be implemented only if the filesystem adds volumes at the head
 of the filesystem, so that they can be returned by \fBfile volumes\fR.
 .PP
 .CS
-typedef Tcl_Obj* Tcl_FSListVolumesProc(void);
+typedef Tcl_Obj *\fBTcl_FSListVolumesProc\fR(void);
 .CE
 .PP
 The result should be a list of volumes added by this filesystem, or
-NULL (or an empty list) if no volumes are provided.  The result object
+NULL (or an empty list) if no volumes are provided. The result value
 is considered to be owned by the filesystem (not by Tcl's core), but
-should be given a refCount for Tcl.  Tcl will use the contents of the
-list and then decrement that refCount.  This allows filesystems to
+should be given a reference count for Tcl. Tcl will use the contents of the
+list and then decrement that reference count. This allows filesystems to
 choose whether they actually want to retain a
-.QW "master list"
+.QW "global list"
 of volumes
 or not (if not, they generate the list on the fly and pass it to Tcl
-with a refCount of 1 and then forget about the list, if yes, then
-they simply increment the refCount of their master list and pass it
+with a reference count of 1 and then forget about the list, if yes, then
+they simply increment the reference count of their global list and pass it
 to Tcl which will copy the contents and then decrement the count back
 to where it was).
 .PP
@@ -1273,25 +1367,25 @@ Therefore, Tcl considers return values from this proc to be read-only.
 .SS FILEATTRSTRINGSPROC
 .PP
 Function to list all attribute strings which are valid for this
-filesystem.  If not implemented the filesystem will not support
-the \fBfile attributes\fR command.  This allows arbitrary additional
-information to be attached to files in the filesystem.  If it is
+filesystem. If not implemented the filesystem will not support
+the \fBfile attributes\fR command. This allows arbitrary additional
+information to be attached to files in the filesystem. If it is
 not implemented, there is no need to implement the \fBget\fR and \fBset\fR
 methods.
 .PP
 .CS
-typedef const char** Tcl_FSFileAttrStringsProc(
+typedef const char *const *\fBTcl_FSFileAttrStringsProc\fR(
         Tcl_Obj *\fIpathPtr\fR,
-        Tcl_Obj** \fIobjPtrRef\fR);
+        Tcl_Obj **\fIobjPtrRef\fR);
 .CE
 .PP
 The called function may either return an array of strings, or may
-instead return NULL and place a Tcl list into the given \fIobjPtrRef\fR.  Tcl
+instead return NULL and place a Tcl list into the given \fIobjPtrRef\fR. Tcl
 will take that list and first increment its reference count before using it.
-On completion of that use, Tcl will decrement its reference count.  Hence if
+On completion of that use, Tcl will decrement its reference count. Hence if
 the list should be disposed of by Tcl when done, it should have a
 reference count of zero, and if the list should not be disposed of, the
-filesystem should ensure it returns an object with a reference count
+filesystem should ensure it returns a value with a reference count
 of at least one.
 .SS FILEATTRSGETPROC
 .PP
@@ -1299,27 +1393,27 @@ Function to process a \fBTcl_FSFileAttrsGet\fR call, used by \fBfile
 attributes\fR.
 .PP
 .CS
-typedef int Tcl_FSFileAttrsGetProc(
+typedef int \fBTcl_FSFileAttrsGetProc\fR(
         Tcl_Interp *\fIinterp\fR,
         int \fIindex\fR,
         Tcl_Obj *\fIpathPtr\fR,
         Tcl_Obj **\fIobjPtrRef\fR);
 .CE
 .PP
-Returns a standard Tcl return code.  The attribute value retrieved,
+Returns a standard Tcl return code. The attribute value retrieved,
 which corresponds to the \fIindex\fR'th element in the list returned by
-the \fBTcl_FSFileAttrStringsProc\fR, is a Tcl_Obj placed in \fIobjPtrRef\fR (if
-\fBTCL_OK\fR was returned) and is likely to have a reference count of zero.  Either
-way we must either store it somewhere (e.g. the Tcl result), or
-Incr/Decr its reference count to ensure it is properly freed.
+the \fBTcl_FSFileAttrStringsProc\fR, is a Tcl_Obj placed in \fIobjPtrRef\fR
+(if \fBTCL_OK\fR was returned) and is likely to have a reference count of
+zero. Either way we must either store it somewhere (e.g.\ the Tcl result),
+or Incr/Decr its reference count to ensure it is properly freed.
 .SS FILEATTRSSETPROC
 .PP
 Function to process a \fBTcl_FSFileAttrsSet\fR call, used by \fBfile
-attributes\fR.  If the filesystem is read-only, there is no need
+attributes\fR. If the filesystem is read-only, there is no need
 to implement this.
 .PP
 .CS
-typedef int Tcl_FSFileAttrsSetProc(
+typedef int \fBTcl_FSFileAttrsSetProc\fR(
         Tcl_Interp *\fIinterp\fR,
         int \fIindex\fR,
         Tcl_Obj *\fIpathPtr\fR,
@@ -1330,53 +1424,53 @@ The attribute value of the \fIindex\fR'th element in the list returned by
 the Tcl_FSFileAttrStringsProc should be set to the \fIobjPtr\fR given.
 .SS CREATEDIRECTORYPROC
 .PP
-Function to process a \fBTcl_FSCreateDirectory\fR call.  Should be
+Function to process a \fBTcl_FSCreateDirectory\fR call. Should be
 implemented unless the FS is read-only.
 .PP
 .CS
-typedef int Tcl_FSCreateDirectoryProc(
+typedef int \fBTcl_FSCreateDirectoryProc\fR(
         Tcl_Obj *\fIpathPtr\fR);
 .CE
 .PP
 The return value is a standard Tcl result indicating whether an error
-occurred in the process.  If successful, a new directory should have
+occurred in the process. If successful, a new directory should have
 been added to the filesystem in the location specified by
 \fIpathPtr\fR.
 .SS REMOVEDIRECTORYPROC
 .PP
-Function to process a \fBTcl_FSRemoveDirectory\fR call.  Should be
+Function to process a \fBTcl_FSRemoveDirectory\fR call. Should be
 implemented unless the FS is read-only.
 .PP
 .CS
-typedef int Tcl_FSRemoveDirectoryProc(
+typedef int \fBTcl_FSRemoveDirectoryProc\fR(
         Tcl_Obj *\fIpathPtr\fR,
         int \fIrecursive\fR,
         Tcl_Obj **\fIerrorPtr\fR);
 .CE
 .PP
 The return value is a standard Tcl result indicating whether an error
-occurred in the process.  If successful, the directory specified by
-\fIpathPtr\fR should have been removed from the filesystem.  If the
+occurred in the process. If successful, the directory specified by
+\fIpathPtr\fR should have been removed from the filesystem. If the
 \fIrecursive\fR flag is given, then a non-empty directory should be
-deleted without error.  If this flag is not given, then and the
+deleted without error. If this flag is not given, then and the
 directory is non-empty a POSIX
 .QW EEXIST
-error should be signaled.  If an
+error should be signaled. If an
 error does occur, the name of the file or directory which caused the
 error should be placed in \fIerrorPtr\fR.
 .SS DELETEFILEPROC
 .PP
-Function to process a \fBTcl_FSDeleteFile\fR call.  Should be implemented
+Function to process a \fBTcl_FSDeleteFile\fR call. Should be implemented
 unless the FS is read-only.
 .PP
 .CS
-typedef int Tcl_FSDeleteFileProc(
+typedef int \fBTcl_FSDeleteFileProc\fR(
         Tcl_Obj *\fIpathPtr\fR);
 .CE
 .PP
 The return value is a standard Tcl result indicating whether an error
-occurred in the process.  If successful, the file specified by
-\fIpathPtr\fR should have been removed from the filesystem.  Note that,
+occurred in the process. If successful, the file specified by
+\fIpathPtr\fR should have been removed from the filesystem. Note that,
 if the filesystem supports symbolic links, Tcl will always call this
 function and not Tcl_FSRemoveDirectoryProc when needed to delete them
 (even if they are symbolic links to directories).
@@ -1387,13 +1481,13 @@ because the core has a fallback implementation available. See each
 individual description for the consequences of leaving the field NULL.
 .SS LSTATPROC
 .PP
-Function to process a \fBTcl_FSLstat\fR call.  If not implemented, Tcl
-will attempt to use the \fIstatProc\fR defined above instead.  Therefore
+Function to process a \fBTcl_FSLstat\fR call. If not implemented, Tcl
+will attempt to use the \fIstatProc\fR defined above instead. Therefore
 it need only be implemented if a filesystem can differentiate between
 \fBstat\fR and \fBlstat\fR calls.
 .PP
 .CS
-typedef int Tcl_FSLstatProc(
+typedef int \fBTcl_FSLstatProc\fR(
         Tcl_Obj *\fIpathPtr\fR,
         Tcl_StatBuf *\fIstatPtr\fR);
 .CE
@@ -1404,152 +1498,304 @@ to a symbolic link, it returns information about the link, not
 about the target file.
 .SS COPYFILEPROC
 .PP
-Function to process a \fBTcl_FSCopyFile\fR call.  If not implemented Tcl
+Function to process a \fBTcl_FSCopyFile\fR call. If not implemented Tcl
 will fall back on \fBopen\fR-r, \fBopen\fR-w and \fBfcopy\fR as a
 copying mechanism.
 Therefore it need only be implemented if the filesystem can perform
 that action more efficiently.
 .PP
 .CS
-typedef int Tcl_FSCopyFileProc(
+typedef int \fBTcl_FSCopyFileProc\fR(
         Tcl_Obj *\fIsrcPathPtr\fR,
         Tcl_Obj *\fIdestPathPtr\fR);
 .CE
 .PP
 The return value is a standard Tcl result indicating whether an error
-occurred in the copying process.  Note that, \fIdestPathPtr\fR is the
+occurred in the copying process. Note that, \fIdestPathPtr\fR is the
 name of the file which should become the copy of \fIsrcPathPtr\fR. It
 is never the name of a directory into which \fIsrcPathPtr\fR could be
-copied (i.e. the function is much simpler than the Tcl level \fBfile
-copy\fR subcommand).  Note that,
+copied (i.e.\ the function is much simpler than the Tcl level \fBfile
+copy\fR subcommand). Note that,
 if the filesystem supports symbolic links, Tcl will always call this
 function and not \fIcopyDirectoryProc\fR when needed to copy them
-(even if they are symbolic links to directories).  Finally, if the
+(even if they are symbolic links to directories). Finally, if the
 filesystem determines it cannot support the \fBfile copy\fR action,
 calling \fBTcl_SetErrno(EXDEV)\fR and returning a non-\fBTCL_OK\fR
 result will tell Tcl to use its standard fallback mechanisms.
 .SS RENAMEFILEPROC
 .PP
-Function to process a \fBTcl_FSRenameFile\fR call.  If not implemented,
-Tcl will fall back on a copy and delete mechanism.  Therefore it need
+Function to process a \fBTcl_FSRenameFile\fR call. If not implemented,
+Tcl will fall back on a copy and delete mechanism. Therefore it need
 only be implemented if the filesystem can perform that action more
 efficiently.
 .PP
 .CS
-typedef int Tcl_FSRenameFileProc(
+typedef int \fBTcl_FSRenameFileProc\fR(
         Tcl_Obj *\fIsrcPathPtr\fR,
         Tcl_Obj *\fIdestPathPtr\fR);
 .CE
 .PP
 The return value is a standard Tcl result indicating whether an error
-occurred in the renaming process.  If the
+occurred in the renaming process. If the
 filesystem determines it cannot support the \fBfile rename\fR action,
 calling \fBTcl_SetErrno(EXDEV)\fR and returning a non-\fBTCL_OK\fR
 result will tell Tcl to use its standard fallback mechanisms.
 .SS COPYDIRECTORYPROC
 .PP
-Function to process a \fBTcl_FSCopyDirectory\fR call.  If not
+Function to process a \fBTcl_FSCopyDirectory\fR call. If not
 implemented, Tcl will fall back on a recursive \fBfile mkdir\fR, \fBfile copy\fR
-mechanism.  Therefore it need only be implemented if the filesystem can
+mechanism. Therefore it need only be implemented if the filesystem can
 perform that action more efficiently.
 .PP
 .CS
-typedef int Tcl_FSCopyDirectoryProc(
+typedef int \fBTcl_FSCopyDirectoryProc\fR(
         Tcl_Obj *\fIsrcPathPtr\fR,
         Tcl_Obj *\fIdestPathPtr\fR,
         Tcl_Obj **\fIerrorPtr\fR);
 .CE
 .PP
 The return value is a standard Tcl result indicating whether an error
-occurred in the copying process.  If an error does occur, the name of
+occurred in the copying process. If an error does occur, the name of
 the file or directory which caused the error should be placed in
 \fIerrorPtr\fR. Note that, \fIdestPathPtr\fR is the name of the
 directory-name which should become the mirror-image of
 \fIsrcPathPtr\fR. It is not the name of a directory into which
-\fIsrcPathPtr\fR should be copied (i.e. the function is much simpler
-than the Tcl level \fBfile copy\fR subcommand).  Finally, if the
+\fIsrcPathPtr\fR should be copied (i.e.\ the function is much simpler
+than the Tcl level \fBfile copy\fR subcommand). Finally, if the
 filesystem determines it cannot support the directory copy action,
 calling \fBTcl_SetErrno(EXDEV)\fR and returning a non-\fBTCL_OK\fR
 result will tell Tcl to use its standard fallback mechanisms.
 .SS LOADFILEPROC
 .PP
-Function to process a \fBTcl_FSLoadFile\fR call.  If not implemented, Tcl
+Function to process a \fBTcl_FSLoadFile\fR call. If not implemented, Tcl
 will fall back on a copy to native-temp followed by a \fBTcl_FSLoadFile\fR on
-that temporary copy.  Therefore it need only be implemented if the
+that temporary copy. Therefore it need only be implemented if the
 filesystem can load code directly, or it can be implemented simply to
 return \fBTCL_ERROR\fR to disable load functionality in this filesystem
 entirely.
 .PP
 .CS
-typedef int Tcl_FSLoadFileProc(
+typedef int \fBTcl_FSLoadFileProc\fR(
         Tcl_Interp *\fIinterp\fR,
         Tcl_Obj *\fIpathPtr\fR,
         Tcl_LoadHandle *\fIhandlePtr\fR,
         Tcl_FSUnloadFileProc *\fIunloadProcPtr\fR);
 .CE
 .PP
-Returns a standard Tcl completion code.  If an error occurs, an error
-message is left in the \fIinterp\fR's result.  The function dynamically loads a
-binary code file into memory.  On a successful load, the \fIhandlePtr\fR
+Returns a standard Tcl completion code. If an error occurs, an error
+message is left in the \fIinterp\fR's result. The function dynamically loads a
+binary code file into memory. On a successful load, the \fIhandlePtr\fR
 should be filled with a token for the dynamically loaded file, and the
 \fIunloadProcPtr\fR should be filled in with the address of a procedure.
 The unload procedure will be called with the given \fBTcl_LoadHandle\fR as its
-only parameter when Tcl needs to unload the file.  For example, for the
+only parameter when Tcl needs to unload the file. For example, for the
 native filesystem, the \fBTcl_LoadHandle\fR returned is currently a token
 which can be used in the private \fBTclpFindSymbol\fR to access functions
-in the new code.  Each filesystem is free to define the
-\fBTcl_LoadHandle\fR as it requires.  Finally, if the
+in the new code. Each filesystem is free to define the
+\fBTcl_LoadHandle\fR as it requires. Finally, if the
 filesystem determines it cannot support the file load action,
 calling \fBTcl_SetErrno(EXDEV)\fR and returning a non-\fBTCL_OK\fR
 result will tell Tcl to use its standard fallback mechanisms.
 .SS UNLOADFILEPROC
 .PP
-Function to unload a previously successfully loaded file.  If load was
+Function to unload a previously successfully loaded file. If load was
 implemented, then this should also be implemented, if there is any
 cleanup action required.
 .PP
 .CS
-typedef void Tcl_FSUnloadFileProc(
+typedef void \fBTcl_FSUnloadFileProc\fR(
         Tcl_LoadHandle \fIloadHandle\fR);
 .CE
-.SS GETCWDPROC     
+.SS GETCWDPROC
 .PP
-Function to process a \fBTcl_FSGetCwd\fR call.  Most filesystems need not
-implement this.  It will usually only be called once, if \fBgetcwd\fR is
-called before \fBchdir\fR.  May be NULL.
+Function to process a \fBTcl_FSGetCwd\fR call. Most filesystems need not
+implement this. It will usually only be called once, if \fBgetcwd\fR is
+called before \fBchdir\fR. May be NULL.
 .PP
 .CS
-typedef Tcl_Obj* Tcl_FSGetCwdProc(
+typedef Tcl_Obj *\fBTcl_FSGetCwdProc\fR(
         Tcl_Interp *\fIinterp\fR);
 .CE
 .PP
 If the filesystem supports a native notion of a current working
 directory (which might perhaps change independent of Tcl), this
 function should return that cwd as the result, or NULL if the current
-directory could not be determined (e.g. the user does not have
-appropriate permissions on the cwd directory).  If NULL is returned, an
+directory could not be determined (e.g.\ the user does not have
+appropriate permissions on the cwd directory). If NULL is returned, an
 error message is left in the \fIinterp\fR's result.
 .SS CHDIRPROC
 .PP
-Function to process a \fBTcl_FSChdir\fR call.  If filesystems do not
+Function to process a \fBTcl_FSChdir\fR call. If filesystems do not
 implement this, it will be emulated by a series of directory access
-checks.  Otherwise, virtual filesystems which do implement it need only
+checks. Otherwise, virtual filesystems which do implement it need only
 respond with a positive return result if the \fIpathPtr\fR is a valid,
-accessible directory in their filesystem.  They need not remember the
+accessible directory in their filesystem. They need not remember the
 result, since that will be automatically remembered for use by
 \fBTcl_FSGetCwd\fR.
-Real filesystems should carry out the correct action (i.e. call the
+Real filesystems should carry out the correct action (i.e.\ call the
 correct system \fBchdir\fR API).
 .PP
 .CS
-typedef int Tcl_FSChdirProc(
+typedef int \fBTcl_FSChdirProc\fR(
         Tcl_Obj *\fIpathPtr\fR);
 .CE
 .PP
 The \fBTcl_FSChdirProc\fR changes the applications current working
 directory to the value specified in \fIpathPtr\fR. The function returns
 -1 on error or 0 on success.
+.SH "REFERENCE COUNT MANAGEMENT"
+.SS "PUBLIC API CALLS"
+.PP
+For all of these functions, \fIpathPtr\fR (including the \fIsrcPathPtr\fR and
+\fIdestPathPtr\fR arguments to \fBTcl_FSCopyFile\fR,
+\fBTcl_FSCopyDirectory\fR, and \fBTcl_FSRenameFile\fR, the \fIfirstPtr\fR and
+\fIsecondPtr\fR arguments to \fBTcl_FSEqualPaths\fR, and the \fIlinkNamePtr\fR
+and \fItoPtr\fR arguments to \fBTcl_FSLink\fR) must not be a zero reference
+count value; references may be retained in internal caches even for
+theoretically read-only operations.  These functions may also manipulate the
+interpreter result (if they take and are given a non-NULL \fIinterp\fR
+argument); you must not count on the interpreter result to hold the reference
+count of any argument value over these calls and should manage your own
+references there. However, references held by the arguments to a Tcl command
+\fIare\fR suitable for reference count management purposes for the duration of
+the implementation of that command.
+.PP
+The \fIerrorPtr\fR argument to \fBTcl_FSCopyDirectory\fR and
+\fBTcl_FSRemoveDirectory\fR is, when an object is set into it at all, set to
+an object with a non-zero reference count that should be passed to
+\fBTcl_DecrRefCount\fR when no longer needed.
+.PP
+\fBTcl_FSListVolumes\fR always returns a zero-reference object, much
+like \fBTcl_NewObj\fR.
+.PP
+\fBTcl_FSLink\fR always returns a non-zero-reference object when it is
+asked to read; you must call \fBTcl_DecrRefCount\fR on the object
+once you no longer need it.
+.PP
+\fBTcl_FSGetCwd\fR always returns a non-zero-reference object; you
+must call \fBTcl_DecrRefCount\fR on the object once you no longer need
+it.
+.PP
+\fBTcl_FSPathSeparator\fR always returns a zero-reference object, much
+like \fBTcl_NewObj\fR.
+.PP
+\fBTcl_FSJoinPath\fR always returns a zero-reference object, much
+like \fBTcl_NewObj\fR. Its \fIlistObj\fR argument can have any reference
+count; it is only read by this function.
+.PP
+\fBTcl_FSSplitPath\fR always returns a zero-reference object, much
+like \fBTcl_NewObj\fR.
+.PP
+\fBTcl_FSGetNormalizedPath\fR returns an object with a non-zero
+reference count where Tcl is the owner. You should increment its
+reference count if you want to retain it, but do not need to if you
+are just using the value immediately.
+.PP
+\fBTcl_FSJoinToPath\fR always returns a zero-reference object, much like
+\fBTcl_NewObj\fR. Its \fIbasePtr\fR argument follows the rules above for
+\fIpathPtr\fR, as do the values in the \fIobjv\fR argument.
+.PP
+\fBTcl_FSGetTranslatedPath\fR returns a non-zero-reference object (or
+NULL in the error case); you must call \fBTcl_DecrRefCount\fR on the
+object once you no longer need it.
+.PP
+\fBTcl_FSNewNativePath\fR always returns a zero-reference object (or
+NULL), much like \fBTcl_NewObj\fR.
+.PP
+\fBTcl_FSFileSystemInfo\fR always returns a zero-reference object (or
+NULL), much like \fBTcl_NewObj\fR.
+.PP
+The \fIobjPtr\fR and \fIobjPtrRef\fR arguments to \fBTcl_FSFileAttrsGet\fR,
+\fBTcl_FSFileAttrsSet\fR and \fBTcl_FSFileAttrStrings\fR are conventional Tcl
+values; the \fIobjPtr\fR argument will be read but not retained, and the
+\fIobjPtrRef\fR argument will have (on success) a zero-reference value written
+into it (as with \fBTcl_NewObj\fR). \fBTcl_FSFileAttrsGet\fR and
+\fBTcl_FSFileAttrsSet\fR may also manipulate the interpreter result.
+.PP
+The \fIresultPtr\fR argument to \fBTcl_FSMatchInDirectory\fR will not have its
+reference count manipulated, but it should have a reference count of no more
+than 1, and should not be the current interpreter result (as the function may
+overwrite that on error).
+.SS "VIRTUAL FILESYSTEM INTERFACE"
+.PP
+For all virtual filesystem implementation functions, any \fIpathPtr\fR
+arguments should not have their reference counts manipulated. If they take an
+\fIinterp\fR argument, they may set an error message in that, but must not
+manipulate the \fIpathPtr\fR afterwards. Aside from that:
+.TP
+\fIinternalToNormalizedProc\fR
+.
+This should return a zero-reference count value, as if allocated with
+\fBTcl_NewObj\fR.
+.TP
+\fInormalizePathProc\fR
+.
+Unlike with other API implementation functions, the \fIpathPtr\fR argument
+here is guaranteed to be an unshared object that should be updated. Its
+reference count should not be modified.
+.TP
+\fIfilesystemPathTypeProc\fR
+.
+The return value (if non-NULL) either has a reference count of zero or needs
+to be maintained (on a per-thread basis) by the filesystem. Tcl will increment
+the reference count of the value if it wishes to retain it.
+.TP
+\fIfilesystemSeparatorProc\fR
+.
+The return value should be a value with reference count of zero.
+.TP
+\fImatchInDirectoryProc\fR
+.
+The \fIresultPtr\fR argument should be assumed to hold a list that can be
+appended to (i.e., that has a reference count no greater than 1). No reference
+to it should be retained.
+.TP
+\fIlinkProc\fR
+.
+If \fItoPtr\fR is NULL, this should return a value with reference count 1 that
+has just been allocated and passed to \fBTcl_IncrRefCount\fR. If \fItoPtr\fR
+is not NULL, it should be returned on success.
+.TP
+\fIlistVolumesProc\fR
+.
+The result value should be a list (if non-NULL); it will have its reference
+count decremented once (with \fBTcl_DecrRefCount\fR) by Tcl once done.
+.TP
+\fIfileAttrStringsProc\fR
+.
+If the result is NULL, the \fIobjPtrRef\fR should have a list value written to
+it; that list will have its reference count both incremented (with
+\fBTcl_IncrRefCount\fR) and decremented (with \fBTcl_DecrRefCount\fR).
+.TP
+\fIfileAttrsGetProc\fR
+.
+The \fIobjPtrRef\fR argument should have (on non-error return) a zero
+reference count value written to it (allocated as if with \fBTcl_NewObj\fR).
+.TP
+\fIfileAttrsSetProc\fR
+.
+The \fIobjPtr\fR argument should either just be read or its reference count
+incremented to retain it.
+.TP
+\fIremoveDirectoryProc\fR
+.
+If an error is being reported, the problem filename reported via
+\fIerrorPtr\fR should be newly allocated (as if with \fBTcl_NewObj\fR) and
+have a reference count of 1 (i.e., have been passed to
+\fBTcl_IncrRefCount\fR).
+.TP
+\fIcopyDirectoryProc\fR
+.
+If an error is being reported, the problem filename reported via
+\fIerrorPtr\fR should be newly allocated (as if with \fBTcl_NewObj\fR) and
+have a reference count of 1 (i.e., have been passed to
+\fBTcl_IncrRefCount\fR).
+.TP
+\fIgetCwdProc\fR
+.
+The result will be passed to \fBTcl_DecrRefCount\fR by the implementation of
+\fBTcl_FSGetCwd\fR after it has been normalized.
 .SH "SEE ALSO"
-cd(n), file(n), load(n), open(n), pwd(n), unload(n)
+cd(n), file(n), filename(n), load(n), open(n), pwd(n), source(n), unload(n)
 .SH KEYWORDS
-stat, access, filesystem, vfs, virtual
+stat, access, filesystem, vfs, virtual filesystem
diff --git a/doc/FindExec.3 b/doc/FindExec.3
index af9d9ad..756d8cb 100644
--- a/doc/FindExec.3
+++ b/doc/FindExec.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_FindExecutable 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -13,11 +13,12 @@ Tcl_FindExecutable, Tcl_GetNameOfExecutable \- identify or return the name of th
 .nf
 \fB#include <tcl.h>\fR
 .sp
-void
+const char *
 \fBTcl_FindExecutable\fR(\fIargv0\fR)
 .sp
 const char *
 \fBTcl_GetNameOfExecutable\fR()
+.fi
 .SH ARGUMENTS
 .AS char *argv0
 .AP char *argv0 in
@@ -35,6 +36,9 @@ Tcl.  For example, it is needed on some platforms in the
 implementation of the \fBload\fR command.
 It is also returned by the \fBinfo nameofexecutable\fR command.
 .PP
+The result of \fBTcl_FindExecutable\fR is the full Tcl version with
+build information (e.g., \fB9.0.0+abcdef...abcdef.gcc-1002\fR).
+.PP
 On UNIX platforms this procedure is typically invoked as the very
 first thing in the application's main program;  it must be passed
 \fIargv[0]\fR as its argument.  It is important not to change the
@@ -45,12 +49,20 @@ application's executable, if possible.  If it fails to find
 the binary, then future calls to \fBinfo nameofexecutable\fR
 will return an empty string.
 .PP
+On Windows platforms this procedure is typically invoked as the very
+first thing in the application's main program as well; Its \fIargv[0]\fR
+argument is only used to indicate whether the executable has a stderr
+channel (any non-null value) or not (the value null). If \fBTcl_SetPanicProc\fR
+is never called and no debugger is running, this determines whether
+the panic message is sent to stderr or to a standard system dialog.
+.PP
 \fBTcl_GetNameOfExecutable\fR simply returns a pointer to the
 internal full path name of the executable file as computed by
 \fBTcl_FindExecutable\fR.  This procedure call is the C API
 equivalent to the \fBinfo nameofexecutable\fR command.  NULL
 is returned if the internal full path name has not been
 computed or unknown.
-
+.PP
+\fBTcl_FindExecutable\fR can not be used in stub-enabled extensions.
 .SH KEYWORDS
 binary, executable file
diff --git a/doc/GetCwd.3 b/doc/GetCwd.3
index 58abcde..b901098 100644
--- a/doc/GetCwd.3
+++ b/doc/GetCwd.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_GetCwd 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -17,7 +17,8 @@ char *
 \fBTcl_GetCwd\fR(\fIinterp\fR, \fIbufferPtr\fR)
 .sp
 int
-\fBTcl_Chdir\fR(\fIpath\fR)
+\fBTcl_Chdir\fR(\fIdirName\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_DString *bufferPtr in/out
 .AP Tcl_Interp *interp in
@@ -27,7 +28,7 @@ This dynamic string is used to store the current working directory.
 At the time of the call it should be uninitialized or free.  The
 caller must eventually call \fBTcl_DStringFree\fR to free up
 anything stored here.
-.AP char *path in
+.AP "const char" *dirName in
 File path in UTF\-8 format.
 .BE
 
@@ -45,8 +46,8 @@ must call \fBTcl_DStringFree()\fR when the result is no longer needed.
 The format of the path is UTF\-8.
 .PP
 \fBTcl_Chdir\fR changes the applications current working directory to
-the value specified in \fIpath\fR.  The format of the passed in string
-must be UTF\-8.  The function returns -1 on error or 0 on success.
+the value specified in \fIdirName\fR.  The format of the passed in string
+must be UTF\-8.  The function returns \-1 on error or 0 on success.
 
 .SH KEYWORDS
 pwd
diff --git a/doc/GetHostName.3 b/doc/GetHostName.3
index 8aed0dc..cdef270 100644
--- a/doc/GetHostName.3
+++ b/doc/GetHostName.3
@@ -1,7 +1,7 @@
 '\"
-'\" Copyright (c) 1998-2000 by Scriptics Corporation.
+'\" Copyright (c) 1998-2000 Scriptics Corporation.
 '\" All rights reserved.
-'\" 
+'\"
 .TH Tcl_GetHostName 3 8.3 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -13,12 +13,13 @@ Tcl_GetHostName \- get the name of the local host
 .sp
 const char *
 \fBTcl_GetHostName\fR()
+.fi
 .BE
 
 .SH DESCRIPTION
 .PP
 \fBTcl_GetHostName\fR is a utility procedure used by some of the
-Tcl commands.  It returns a pointer to a string containing the name 
+Tcl commands.  It returns a pointer to a string containing the name
 for the current machine, or an empty string if the name cannot be
 determined.  The string is statically allocated, and the caller must
 not modify of free it.
diff --git a/doc/GetIndex.3 b/doc/GetIndex.3
index 88cd98b..deb77fe 100644
--- a/doc/GetIndex.3
+++ b/doc/GetIndex.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_GetIndexFromObj 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -20,26 +20,30 @@ indexPtr\fR)
 int
 \fBTcl_GetIndexFromObjStruct\fR(\fIinterp, objPtr, structTablePtr, offset,
                           msg, flags, indexPtr\fR)
+.fi
 .SH ARGUMENTS
 .AS "const char" *structTablePtr in/out
 .AP Tcl_Interp *interp in
 Interpreter to use for error reporting; if NULL, then no message is
 provided on errors.
 .AP Tcl_Obj *objPtr in/out
-The string value of this object is used to search through \fItablePtr\fR.
-The internal representation is modified to hold the index of the matching
+The string value of this value is used to search through \fItablePtr\fR.
+If the \fBTCL_INDEX_TEMP_TABLE\fR flag is not specified,
+the internal representation is modified to hold the index of the matching
 table entry.
-.AP "const char" **tablePtr in
+.AP "const char *const" *tablePtr in
 An array of null-terminated strings.  The end of the array is marked
 by a NULL string pointer.
-Note that references to the \fItablePtr\fR may be retained in the
+Note that, unless the \fBTCL_INDEX_TEMP_TABLE\fR flag is specified,
+references to the \fItablePtr\fR may be retained in the
 internal representation of \fIobjPtr\fR, so this should represent the
 address of a statically-allocated array.
 .AP "const void" *structTablePtr in
 An array of arbitrary type, typically some \fBstruct\fR type.
 The first member of the structure must be a null-terminated string.
 The size of the structure is given by \fIoffset\fR.
-Note that references to the \fIstructTablePtr\fR may be retained in the
+Note that, unless the \fBTCL_INDEX_TEMP_TABLE\fR flag is specified,
+references to the \fIstructTablePtr\fR may be retained in the
 internal representation of \fIobjPtr\fR, so this should represent the
 address of a statically-allocated array of structures.
 .AP int offset in
@@ -50,25 +54,27 @@ Null-terminated string describing what is being looked up, such as
 \fBoption\fR.  This string is included in error messages.
 .AP int flags in
 OR-ed combination of bits providing additional information for
-operation.  The only bit that is currently defined is \fBTCL_EXACT\fR.
-.AP int *indexPtr out
-The index of the string in \fItablePtr\fR that matches the value of
-\fIobjPtr\fR is returned here.
+operation.  The only bits that are currently defined are \fBTCL_EXACT\fR
+, \fBTCL_INDEX_TEMP_TABLE\fR, and \fBTCL_NULL_OK\fR.
+.AP enum|char|short|int|long *indexPtr out
+If not (int *)NULL, the index of the string in \fItablePtr\fR that
+matches the value of \fIobjPtr\fR is returned here. The variable can
+be any integer type, signed or unsigned, char, short, long or
+long long. It can also be an enum.
 .BE
-
 .SH DESCRIPTION
 .PP
 These procedures provide an efficient way for looking up keywords,
-switch names, option names, and similar things where the value of
-an object must be one of a predefined set of values.
+switch names, option names, and similar things where the literal value of
+a Tcl value must be chosen from a predefined set.
 \fBTcl_GetIndexFromObj\fR compares \fIobjPtr\fR against each of
 the strings in \fItablePtr\fR to find a match.  A match occurs if
 \fIobjPtr\fR's string value is identical to one of the strings in
 \fItablePtr\fR, or if it is a non-empty unique abbreviation
 for exactly one of the strings in \fItablePtr\fR and the
 \fBTCL_EXACT\fR flag was not specified; in either case
-the index of the matching entry is stored at \fI*indexPtr\fR
-and \fBTCL_OK\fR is returned.
+\fBTCL_OK\fR is returned. If \fIindexPtr\fR is not NULL the index
+of the matching entry is stored at \fI*indexPtr\fR.
 .PP
 If there is no matching entry,
 \fBTCL_ERROR\fR is returned and an error message is left in \fIinterp\fR's
@@ -77,15 +83,20 @@ error message to indicate what was being looked up.  For example,
 if \fImsg\fR is \fBoption\fR the error message will have a form like
 .QW "\fBbad option \N'34'firt\N'34': must be first, second, or third\fR" .
 .PP
-If \fBTcl_GetIndexFromObj\fR completes successfully it modifies the
+If the \fBTCL_INDEX_TEMP_TABLE\fR was not specified, when
+\fBTcl_GetIndexFromObj\fR completes successfully it modifies the
 internal representation of \fIobjPtr\fR to hold the address of
 the table and the index of the matching entry.  If \fBTcl_GetIndexFromObj\fR
 is invoked again with the same \fIobjPtr\fR and \fItablePtr\fR
 arguments (e.g. during a reinvocation of a Tcl command), it returns
 the matching index immediately without having to redo the lookup
-operation.  Note: \fBTcl_GetIndexFromObj\fR assumes that the entries
+operation.  Note that \fBTcl_GetIndexFromObj\fR assumes that the entries
 in \fItablePtr\fR are static: they must not change between
-invocations.  If the value of \fIobjPtr\fR is the empty string,
+invocations.  This caching mechanism can be disallowed by specifying
+the \fBTCL_INDEX_TEMP_TABLE\fR flag.
+If the \fBTCL_NULL_OK\fR flag was specified, objPtr is allowed
+to be NULL or the empty string. The resulting index is -1.
+Otherwise, if the value of \fIobjPtr\fR is the empty string,
 \fBTcl_GetIndexFromObj\fR will treat it as a non-matching value
 and return \fBTCL_ERROR\fR.
 .PP
@@ -99,9 +110,13 @@ array of characters at \fItablePtr\fR+\fIoffset\fR bytes, etc.)
 This is particularly useful when processing things like
 \fBTk_ConfigurationSpec\fR, whose string keys are in the same place in
 each of several array elements.
-
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+\fBTcl_GetIndexFromObj\fR and \fBTcl_GetIndexFromObjStruct\fR do not modify
+the reference count of their \fIobjPtr\fR arguments; they only read. Note
+however that these functions may set the interpreter result; if that is the
+only place that is holding a reference to the object, it will be deleted.
 .SH "SEE ALSO"
-Tcl_WrongNumArgs
-
+prefix(n), Tcl_WrongNumArgs(3)
 .SH KEYWORDS
-index, object, table lookup
+index, option, value, table lookup
diff --git a/doc/GetInt.3 b/doc/GetInt.3
index 4e9d636..a0c1d1b 100644
--- a/doc/GetInt.3
+++ b/doc/GetInt.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_GetInt 3 "" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -21,7 +21,11 @@ int
 \fBTcl_GetDouble\fR(\fIinterp, src, doublePtr\fR)
 .sp
 int
-\fBTcl_GetBoolean\fR(\fIinterp, src, boolPtr\fR)
+\fBTcl_GetBoolean\fR(\fIinterp, src, intPtr\fR)
+.sp
+int
+\fBTcl_GetBool\fR(\fIinterp, src, flags, charPtr\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp *doublePtr out
 .AP Tcl_Interp *interp in
@@ -33,8 +37,12 @@ Points to place to store integer value converted from \fIsrc\fR.
 .AP double *doublePtr out
 Points to place to store double-precision floating-point
 value converted from \fIsrc\fR.
-.AP int *boolPtr out
-Points to place to store boolean value (0 or 1) converted from \fIsrc\fR.
+.AP char *charPtr out
+Points to place to store boolean value (0 or 1) value converted from \fIsrc\fR.
+.AP int flags in
+0 or TCL_NULL_OK. If TCL_NULL_OK
+is used, then the empty string or NULL will result in \fBTcl_GetBool\fR
+return TCL_OK, the *charPtr filled with the value \fB'\exFF'\fR;
 .BE
 
 .SH DESCRIPTION
@@ -48,39 +56,58 @@ third argument.  If all goes well, each of the procedures returns
 \fBTCL_OK\fR.  If \fIsrc\fR does not have the proper syntax for the
 desired type then \fBTCL_ERROR\fR is returned, an error message is left
 in the interpreter's result, and nothing is stored at *\fIintPtr\fR
-or *\fIdoublePtr\fR or *\fIboolPtr\fR.
+or *\fIdoublePtr\fR.
 .PP
 \fBTcl_GetInt\fR expects \fIsrc\fR to consist of a collection
-of integer digits, optionally signed and optionally preceded by
-white space.  If the first two characters of \fIsrc\fR
+of integer digits, optionally signed and optionally preceded and
+followed by white space.  If the first two characters of \fIsrc\fR
 after the optional white space and sign are
-.QW 0x
+.QW \fB0x\fR
 then \fIsrc\fR is expected to be in hexadecimal form;  otherwise,
-if the first such character is
-.QW 0
+if the first such characters are
+.QW \fB0d\fR
+then \fIsrc\fR is expected to be in decimal form; otherwise,
+if the first such characters are
+.QW \fB0o\fR
+then \fIsrc\fR is expected to be in octal form;  otherwise,
+if the first such characters are
+.QW \fB0b\fR
 then \fIsrc\fR
-is expected to be in octal form;  otherwise, \fIsrc\fR is
+is expected to be in binary form;  otherwise, \fIsrc\fR is
 expected to be in decimal form.
 .PP
 \fBTcl_GetDouble\fR expects \fIsrc\fR to consist of a floating-point
 number, which is:  white space;  a sign; a sequence of digits;  a
-decimal point;  a sequence of digits;  the letter
-.QW e ;
+decimal point
+.QW \fB.\fR ;
+a sequence of digits;  the letter
+.QW \fBe\fR ;
 a signed decimal exponent;  and more white space.
 Any of the fields may be omitted, except that
 the digits either before or after the decimal point must be present
 and if the
-.QW e
-is present then it must be followed by the exponent number.
+.QW \fBe\fR
+is present then it must be followed by the exponent number. If there
+are no fields apart from the sign and initial sequence of digits
+(i.e., no decimal point or exponent indicator), that
+initial sequence of digits should take one of the forms that
+\fBTcl_GetInt\fR supports, described above. The use of
+.QW \fB,\fR
+as a decimal point is not supported nor should any other sort of
+inter-digit separator be present.
 .PP
 \fBTcl_GetBoolean\fR expects \fIsrc\fR to specify a boolean
 value.  If \fIsrc\fR is any of \fB0\fR, \fBfalse\fR,
 \fBno\fR, or \fBoff\fR, then \fBTcl_GetBoolean\fR stores a zero
-value at \fI*boolPtr\fR.
+value at \fI*intPtr\fR.
 If \fIsrc\fR is any of \fB1\fR, \fBtrue\fR, \fByes\fR, or \fBon\fR,
-then 1 is stored at \fI*boolPtr\fR.
+then 1 is stored at \fI*intPtr\fR.
 Any of these values may be abbreviated, and upper-case spellings
 are also acceptable.
+.PP
+\fBTcl_GetBool\fR functions almost the same as \fBTcl_GetBoolean\fR,
+but it has an additional parameter \fBflags\fR, which can be used
+to specify whether the empty string or NULL is accepted as valid.
 
 .SH KEYWORDS
 boolean, conversion, double, floating-point, integer
diff --git a/doc/GetOpnFl.3 b/doc/GetOpnFl.3
index 86d1b94..f3a3143 100644
--- a/doc/GetOpnFl.3
+++ b/doc/GetOpnFl.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_GetOpenFile 3 8.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -15,7 +15,7 @@ Tcl_GetOpenFile \- Return a FILE* for a channel registered in the given interpre
 .sp
 int
 \fBTcl_GetOpenFile\fR(\fIinterp, chanID, write, checkUsage, filePtr\fR)
-.sp
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp checkUsage out
 .AP Tcl_Interp *interp in
@@ -28,7 +28,7 @@ be used for reading.
 .AP int checkUsage in
 If non-zero, then an error will be generated if the file was not opened
 for the access indicated by \fIwrite\fR.
-.AP ClientData *filePtr out
+.AP void **filePtr out
 Points to word in which to store pointer to FILE structure for
 the file given by \fIchanID\fR.
 .BE
diff --git a/doc/GetStdChan.3 b/doc/GetStdChan.3
index a7d9501..91217e4 100644
--- a/doc/GetStdChan.3
+++ b/doc/GetStdChan.3
@@ -1,9 +1,9 @@
 '\"
-'\" Copyright (c) 1996 by Sun Microsystems, Inc.
+'\" Copyright (c) 1996 Sun Microsystems, Inc.
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_GetStdChannel 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -18,7 +18,7 @@ Tcl_Channel
 \fBTcl_GetStdChannel\fR(\fItype\fR)
 .sp
 \fBTcl_SetStdChannel\fR(\fIchannel, type\fR)
-.sp
+.fi
 .SH ARGUMENTS
 .AS Tcl_Channel channel
 .AP int type in
@@ -34,18 +34,18 @@ Tcl defines three special channels that are used by various I/O related
 commands if no other channels are specified.  The standard input channel
 has a channel name of \fBstdin\fR and is used by \fBread\fR and \fBgets\fR.
 The standard output channel is named \fBstdout\fR and is used by
-\fBputs\fR.  The standard error channel is named \fBstderr\fR and is used for 
+\fBputs\fR.  The standard error channel is named \fBstderr\fR and is used for
 reporting errors.  In addition, the standard channels are inherited by any
 child processes created using \fBexec\fR or \fBopen\fR in the absence of any
 other redirections.
 .PP
 The standard channels are actually aliases for other normal channels.  The
 current channel associated with a standard channel can be retrieved by calling
-\fBTcl_GetStdChannel\fR with one of 
+\fBTcl_GetStdChannel\fR with one of
 \fBTCL_STDIN\fR, \fBTCL_STDOUT\fR, or \fBTCL_STDERR\fR as the \fItype\fR.  The
 return value will be a valid channel, or NULL.
 .PP
-A new channel can be set for the standard channel specified by \fItype\fR 
+A new channel can be set for the standard channel specified by \fItype\fR
 by calling \fBTcl_SetStdChannel\fR with a new channel or NULL in the
 \fIchannel\fR argument.  If the specified channel is closed by a later call to
 \fBTcl_Close\fR, then the corresponding standard channel will automatically be
@@ -53,16 +53,18 @@ set to NULL.
 .PP
 If a non-NULL value for \fIchannel\fR is passed to \fBTcl_SetStdChannel\fR,
 then that same value should be passed to \fBTcl_RegisterChannel\fR, like so:
+.PP
 .CS
 Tcl_RegisterChannel(NULL, channel);
 .CE
+.PP
 This is a workaround for a misfeature in \fBTcl_SetStdChannel\fR that it
 fails to do some reference counting housekeeping.  This misfeature cannot
 be corrected without contradicting the assumptions of some existing
 code that calls \fBTcl_SetStdChannel\fR.
 .PP
 If \fBTcl_GetStdChannel\fR is called before \fBTcl_SetStdChannel\fR, Tcl will
-construct a new channel to wrap the appropriate platform-specific standard 
+construct a new channel to wrap the appropriate platform-specific standard
 file handle.  If \fBTcl_SetStdChannel\fR is called before
 \fBTcl_GetStdChannel\fR, then the default channel will not be created.
 .PP
@@ -75,7 +77,7 @@ assigned starting with standard input, followed by standard output, with
 standard error being last.
 .PP
 See \fBTcl_StandardChannels\fR for a general treatise about standard
-channels and the behaviour of the Tcl library with regard to them.
+channels and the behavior of the Tcl library with regard to them.
 
 .SH "SEE ALSO"
 Tcl_Close(3), Tcl_CreateChannel(3), Tcl_Main(3), tclsh(1)
diff --git a/doc/GetTime.3 b/doc/GetTime.3
index a617451..ff302e5 100644
--- a/doc/GetTime.3
+++ b/doc/GetTime.3
@@ -1,9 +1,9 @@
 '\"
-'\" Copyright (c) 2001 by Kevin B. Kenny <kennykb@acm.org>.
+'\" Copyright (c) 2001 Kevin B. Kenny <kennykb@acm.org>.
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_GetTime 3 8.4 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -18,28 +18,23 @@ Tcl_GetTime, Tcl_SetTimeProc, Tcl_QueryTimeProc \- get date and time
 \fBTcl_SetTimeProc\fR(\fIgetProc, scaleProc, clientData\fR)
 .sp
 \fBTcl_QueryTimeProc\fR(\fIgetProcPtr, scaleProcPtr, clientDataPtr\fR)
+.fi
 .SH ARGUMENTS
-.AS "Tcl_Time *" timePtr out
-.AP "Tcl_Time *" timePtr out
+.AS Tcl_GetTimeProc *getProc in
+.AP Tcl_Time *timePtr out
 Points to memory in which to store the date and time information.
-.AS "Tcl_GetTimeProc *" getProc in
-.AP "Tcl_GetTimeProc *" getProc in
+.AP Tcl_GetTimeProc getProc in
 Pointer to handler function replacing \fBTcl_GetTime\fR's access to the OS.
-.AS "Tcl_ScaleTimeProc *" scaleProc in
-.AP "Tcl_ScaleTimeProc *" scaleProc in
+.AP Tcl_ScaleTimeProc scaleProc in
 Pointer to handler function for the conversion of time delays in the
 virtual domain to real-time.
-.AS "ClientData *" clientData in
-.AP "ClientData *" clientData in
+.AP void *clientData in
 Value passed through to the two handler functions.
-.AS "Tcl_GetTimeProc **" getProcPtr inout
-.AP "Tcl_GetTimeProc **" getProcPtr inout
+.AP Tcl_GetTimeProc *getProcPtr out
 Pointer to place the currently registered get handler function into.
-.AS "Tcl_ScaleTimeProc **" scaleProcPtr inout
-.AP "Tcl_ScaleTimeProc **" scaleProcPtr inout
+.AP Tcl_ScaleTimeProc *scaleProcPtr out
 Pointer to place the currently registered scale handler function into.
-.AS "ClientData **" clientDataPtr inout
-.AP "ClientData **" clientDataPtr inout
+.AP void **clientDataPtr out
 Pointer to place the currently registered pass-through value into.
 .BE
 .SH DESCRIPTION
@@ -47,17 +42,18 @@ Pointer to place the currently registered pass-through value into.
 The \fBTcl_GetTime\fR function retrieves the current time as a
 \fITcl_Time\fR structure in memory the caller provides.  This
 structure has the following definition:
+.PP
 .CS
-typedef struct Tcl_Time {
-    long sec;
-    long usec;
-} Tcl_Time;
+typedef struct {
+    long long \fIsec\fR;
+    long \fIusec\fR;
+} \fBTcl_Time\fR;
 .CE
 .PP
 On return, the \fIsec\fR member of the structure is filled in with the
 number of seconds that have elapsed since the \fIepoch:\fR the epoch
 is the point in time of 00:00 UTC, 1 January 1970.  This number does
-\fInot\fR count leap seconds \- an interval of one day advances it by
+\fInot\fR count leap seconds; an interval of one day advances it by
 86400 seconds regardless of whether a leap second has been inserted.
 .PP
 The \fIusec\fR member of the structure is filled in with the number of
@@ -68,33 +64,47 @@ computer system.  On multiprocessor variants of Windows, this number
 may be limited to the 10- or 20-ms granularity of the system clock.
 (On single-processor Windows systems, the \fIusec\fR field is derived
 from a performance counter and is highly precise.)
+.SS "VIRTUALIZED TIME"
 .PP
-The \fBTcl_SetTime\fR function registers two related handler functions
+The \fBTcl_SetTimeProc\fR function registers two related handler functions
 with the core. The first handler function is a replacement for
 \fBTcl_GetTime\fR, or rather the OS access made by
 \fBTcl_GetTime\fR. The other handler function is used by the Tcl
 notifier to convert wait/block times from the virtual domain into real
 time.
 .PP
-The \fBTcl_QueryTime\fR function returns the currently registered
+The \fBTcl_QueryTimeProc\fR function returns the currently registered
 handler functions. If no external handlers were set then this will
 return the standard handlers accessing and processing the native time
 of the OS. The arguments to the function are allowed to be NULL; and
 any argument which is NULL is ignored and not set.
 .PP
-Any handler pair specified has to return data which is consistent
-between them. In other words, setting one handler of the pair to
-something assuming a 10-times slowdown, and the other handler of the
-pair to something assuming a two-times slowdown is wrong and not
-allowed.
+The signatures of the handler functions are as follows:
+.PP
+.CS
+typedef void \fBTcl_GetTimeProc\fR(
+        Tcl_Time *\fItimebuf\fR,
+        void *\fIclientData\fR);
+typedef void \fBTcl_ScaleTimeProc\fR(
+        Tcl_Time *\fItimebuf\fR,
+        void *\fIclientData\fR);
+.CE
+.PP
+The \fItimebuf\fR fields contain the time to manipulate, and the
+\fIclientData\fR fields contain a pointer supplied at the time the handler
+functions were registered.
+.PP
+Any handler pair specified has to return data which is consistent between
+them. In other words, setting one handler of the pair to something assuming a
+10-times slowdown, and the other handler of the pair to something assuming a
+two-times slowdown is wrong and not allowed.
 .PP
-The set handler functions are allowed to run the delivered time
-backwards, however this should be avoided. We have to allow it as the
-native time can run backwards as the user can fiddle with the system
-time one way or other. Note that the insertion of the hooks will not
-change the behaviour of the Tcl core with regard to this situation,
-i.e. the existing behaviour is retained.
+The set handler functions are allowed to run the delivered time backwards,
+however this should be avoided. We have to allow it as the native time can run
+backwards as the user can fiddle with the system time one way or other. Note
+that the insertion of the hooks will not change the behavior of the Tcl core
+with regard to this situation, i.e. the existing behavior is retained.
 .SH "SEE ALSO"
-clock
+clock(n)
 .SH KEYWORDS
 date, time
diff --git a/doc/GetVersion.3 b/doc/GetVersion.3
index 89f63d5..5a85a2a 100644
--- a/doc/GetVersion.3
+++ b/doc/GetVersion.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_GetVersion 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -14,24 +14,24 @@ Tcl_GetVersion \- get the version of the library at runtime
 \fB#include <tcl.h>\fR
 .sp
 \fBTcl_GetVersion\fR(\fImajor, minor, patchLevel, type\fR)
+.fi
 .SH ARGUMENTS
-.AS Tcl_ReleaseType *patchLevel out
 .AP int *major out
 Major version number of the Tcl library.
 .AP int *minor out
 Minor version number of the Tcl library.
 .AP int *patchLevel out
 The patch level of the Tcl library (or alpha or beta number).
-.AP Tcl_ReleaseType *type out
+.AP int *type out
 The type of release, also indicates the type of patch level. Can be
-one of \fBTCL_ALPHA_RELEASE\fR, \fBTCL_BETA_RELEASE\fR, or 
+one of \fBTCL_ALPHA_RELEASE\fR, \fBTCL_BETA_RELEASE\fR, or
 \fBTCL_FINAL_RELEASE\fR.
 .BE
 
 .SH DESCRIPTION
 .PP
 \fBTcl_GetVersion\fR should be used to query the version number
-of the Tcl library at runtime.  This is useful when using a 
+of the Tcl library at runtime.  This is useful when using a
 dynamically loaded Tcl library or when writing a stubs-aware
 extension.  For instance, if you write an extension that is
 linked against the Tcl stubs library, it could be loaded into
@@ -39,7 +39,7 @@ a program linked to an older version of Tcl than you expected.
 Use \fBTcl_GetVersion\fR to verify that fact, and possibly to
 change the behavior of your extension.
 .PP
-\fBTcl_GetVersion\fR accepts NULL for any of the arguments. For instance if 
+\fBTcl_GetVersion\fR accepts NULL for any of the arguments. For instance if
 you do not care about the \fIpatchLevel\fR of the library, pass
 a NULL for the \fIpatchLevel\fR argument.
 
diff --git a/doc/Hash.3 b/doc/Hash.3
index 6babe0d..2a5ca47 100644
--- a/doc/Hash.3
+++ b/doc/Hash.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_Hash 3 "" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -30,12 +30,12 @@ Tcl_HashEntry *
 Tcl_HashEntry *
 \fBTcl_FindHashEntry\fR(\fItablePtr, key\fR)
 .sp
-ClientData
+void *
 \fBTcl_GetHashValue\fR(\fIentryPtr\fR)
 .sp
 \fBTcl_SetHashValue\fR(\fIentryPtr, value\fR)
 .sp
-char *
+void *
 \fBTcl_GetHashKey\fR(\fItablePtr, entryPtr\fR)
 .sp
 Tcl_HashEntry *
@@ -46,8 +46,9 @@ Tcl_HashEntry *
 .sp
 char *
 \fBTcl_HashStats\fR(\fItablePtr\fR)
+.fi
 .SH ARGUMENTS
-.AS Tcl_HashKeyType *searchPtr out
+.AS "const Tcl_HashKeyType" *searchPtr out
 .AP Tcl_HashTable *tablePtr in
 Address of hash table structure (for all procedures but
 \fBTcl_InitHashTable\fR, this must have been initialized by
@@ -57,8 +58,8 @@ Kind of keys to use for new hash table.  Must be either
 \fBTCL_STRING_KEYS\fR, \fBTCL_ONE_WORD_KEYS\fR, \fBTCL_CUSTOM_TYPE_KEYS\fR,
 \fBTCL_CUSTOM_PTR_KEYS\fR, or an integer value greater than 1.
 .AP Tcl_HashKeyType *typePtr in
-Address of structure which defines the behaviour of the hash table.
-.AP "const char" *key in
+Address of structure which defines the behavior of the hash table.
+.AP "const void" *key in
 Key to use for probe into table.  Exact form depends on
 \fIkeyType\fR used to create table.
 .AP int *newPtr out
@@ -66,9 +67,8 @@ The word at \fI*newPtr\fR is set to 1 if a new entry was created
 and 0 if there was already an entry for \fIkey\fR.
 .AP Tcl_HashEntry *entryPtr in
 Pointer to hash table entry.
-.AP ClientData value in
-New value to assign to hash table entry.  Need not have type
-ClientData, but must fit in same space as ClientData.
+.AP void *value in
+New value to assign to hash table entry.
 .AP Tcl_HashSearch *searchPtr in
 Pointer to record to use to keep track of progress in enumerating
 all the entries in a hash table.
@@ -81,8 +81,8 @@ very quickly locate the entry, and hence its value. There may be at
 most one entry in a hash table with a particular key, but many entries
 may have the same value.  Keys can take one of four forms: strings,
 one-word values, integer arrays, or custom keys defined by a
-Tcl_HashKeyType structure (See section \fBTHE TCL_HASHKEYTYPE
-STRUCTURE\fR below). All of the keys in a given table have the same
+Tcl_HashKeyType structure (See section \fBTHE TCL_HASHKEYTYPE STRUCTURE\fR
+below). All of the keys in a given table have the same
 form, which is specified when the table is initialized.
 .PP
 The value of a hash table entry can be anything that fits in the same
@@ -131,13 +131,13 @@ The pointer value is the key;  it need not (and usually does not)
 actually point to a string.
 .IP \fBTCL_CUSTOM_TYPE_KEYS\fR 25
 Keys are of arbitrary type, and are stored in the entry. Hashing
-and comparison is determined by \fItypePtr\fR. The Tcl_HashKeyType 
-structure is described in the section 
+and comparison is determined by \fItypePtr\fR. The Tcl_HashKeyType
+structure is described in the section
 \fBTHE TCL_HASHKEYTYPE STRUCTURE\fR below.
 .IP \fBTCL_CUSTOM_PTR_KEYS\fR 25
 Keys are pointers to an arbitrary type, and are stored in the entry. Hashing
-and comparison is determined by \fItypePtr\fR. The Tcl_HashKeyType 
-structure is described in the section 
+and comparison is determined by \fItypePtr\fR. The Tcl_HashKeyType
+structure is described in the section
 \fBTHE TCL_HASHKEYTYPE STRUCTURE\fR below.
 .IP \fIother\fR 25
 If \fIkeyType\fR is not one of the above,
@@ -170,6 +170,7 @@ If an entry already existed with the given key then \fI*newPtr\fR
 is set to zero.
 If a new entry was created, then \fI*newPtr\fR is set to a non-zero
 value and the value of the new entry will be set to zero.
+\fI*newPtr\fR is allowed to be NULL.
 The return value from \fBTcl_CreateHashEntry\fR is a pointer to
 the entry, which may be used to retrieve and modify the entry's
 value or to delete the entry from the table.
@@ -186,11 +187,6 @@ instead, it returns NULL as result.
 .PP
 \fBTcl_GetHashValue\fR and \fBTcl_SetHashValue\fR are used to
 read and write an entry's value, respectively.
-Values are stored and retrieved as type
-.QW ClientData ,
-which is
-large enough to hold a pointer value.  On almost all machines this is
-large enough to hold an integer value too.
 .PP
 \fBTcl_GetHashKey\fR returns the key for a given hash table entry,
 either as a pointer to a string, a one-word
@@ -229,7 +225,7 @@ overall information about a hash table, such as the number of
 entries it contains, the number of buckets in its hash array,
 and the utilization of the buckets.
 It is the caller's responsibility to free the result string
-by passing it to \fBckfree\fR.
+by passing it to \fBTcl_Free\fR.
 .PP
 The header file \fBtcl.h\fR defines the actual data structures
 used to implement hash tables.
@@ -245,15 +241,16 @@ Extension writers can define new hash key types by defining four procedures,
 initializing a \fBTcl_HashKeyType\fR structure to describe the type, and
 calling \fBTcl_InitCustomHashTable\fR. The \fBTcl_HashKeyType\fR structure is
 defined as follows:
+.PP
 .CS
-typedef struct Tcl_HashKeyType {
+typedef struct {
     int \fIversion\fR;
     int \fIflags\fR;
     Tcl_HashKeyProc *\fIhashKeyProc\fR;
     Tcl_CompareHashKeysProc *\fIcompareKeysProc\fR;
     Tcl_AllocHashEntryProc *\fIallocEntryProc\fR;
     Tcl_FreeHashEntryProc *\fIfreeEntryProc\fR;
-} Tcl_HashKeyType;
+} \fBTcl_HashKeyType\fR;
 .CE
 .PP
 The \fIversion\fR member is the version of the table. If this structure is
@@ -268,7 +265,6 @@ they do not use the lower bits. If this flag is set then the hash table will
 attempt to rectify this by randomizing the bits and then using the upper N
 bits as the index into the table.
 .IP \fBTCL_HASH_KEY_SYSTEM_HASH\fR 25
-.VS 8.5
 This flag forces Tcl to use the memory allocation procedures provided by the
 operating system when allocating and freeing memory used to store the hash
 table data structures, and not any of Tcl's own customized memory allocation
@@ -276,51 +272,73 @@ routines. This is important if the hash table is to be used in the
 implementation of a custom set of allocation routines, or something that a
 custom set of allocation routines might depend on, in order to avoid any
 circular dependency.
-.VE 8.5
 .PP
 The \fIhashKeyProc\fR member contains the address of a function called to
 calculate a hash value for the key.
+.PP
 .CS
-typedef unsigned int (Tcl_HashKeyProc) (
+typedef size_t \fBTcl_HashKeyProc\fR(
         Tcl_HashTable *\fItablePtr\fR,
         void *\fIkeyPtr\fR);
 .CE
+.PP
 If this is NULL then \fIkeyPtr\fR is used and
 \fBTCL_HASH_KEY_RANDOMIZE_HASH\fR is assumed.
 .PP
 The \fIcompareKeysProc\fR member contains the address of a function called to
 compare two keys.
+.PP
 .CS
-typedef int (Tcl_CompareHashKeysProc) (
+typedef int \fBTcl_CompareHashKeysProc\fR(
         void *\fIkeyPtr\fR,
         Tcl_HashEntry *\fIhPtr\fR);
 .CE
+.PP
 If this is NULL then the \fIkeyPtr\fR pointers are compared. If the keys do
 not match then the function returns 0, otherwise it returns 1.
 .PP
 The \fIallocEntryProc\fR member contains the address of a function called to
 allocate space for an entry and initialize the key and clientData.
+.PP
 .CS
-typedef Tcl_HashEntry *(Tcl_AllocHashEntryProc) (
+typedef Tcl_HashEntry *\fBTcl_AllocHashEntryProc\fR(
         Tcl_HashTable *\fItablePtr\fR,
         void *\fIkeyPtr\fR);
 .CE
-If this is NULL then Tcl_Alloc is used to allocate enough space for a
+.PP
+If this is NULL then \fBTcl_Alloc\fR is used to allocate enough space for a
 Tcl_HashEntry, the key pointer is assigned to key.oneWordValue and the
 clientData is set to NULL. String keys and array keys use this function to
 allocate enough space for the entry and the key in one block, rather than
 doing it in two blocks. This saves space for a pointer to the key from the
 entry and another memory allocation. Tcl_Obj* keys use this function to
 allocate enough space for an entry and increment the reference count on the
-object.
+value.
 .PP
 The \fIfreeEntryProc\fR member contains the address of a function called to
 free space for an entry.
+.PP
 .CS
-typedef void (Tcl_FreeHashEntryProc) (Tcl_HashEntry *\fIhPtr\fR);
+typedef void \fBTcl_FreeHashEntryProc\fR(
+        Tcl_HashEntry *\fIhPtr\fR);
 .CE
-If this is NULL then Tcl_Free is used to free the space for the entry.
+.PP
+If this is NULL then \fBTcl_Free\fR is used to free the space for the entry.
 Tcl_Obj* keys use this function to decrement the reference count on the
-object.
+value.
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+When a hash table is created with \fBTcl_InitCustomHashTable\fR, the
+\fBTcl_CreateHashEntry\fR function will increment the reference count of its
+\fIkey\fR argument when it creates a key (but not if there is an existing
+matching key). The reference count of the key will be decremented when the
+corresponding hash entry is deleted, whether with \fBTcl_DeleteHashEntry\fR or
+with \fBTcl_DeleteHashTable\fR. The \fBTcl_GetHashKey\fR function will return
+the key without further modifying its reference count.
+.PP
+Custom hash tables that use a Tcl_Obj* as key will generally need to do
+something similar in their \fIallocEntryProc\fR.
+.SH "SEE ALSO"
+Dict(3)
 .SH KEYWORDS
 hash table, key, lookup, search, value
diff --git a/doc/Init.3 b/doc/Init.3
index 33c27a3..03e0c97 100644
--- a/doc/Init.3
+++ b/doc/Init.3
@@ -1,8 +1,8 @@
 '\"
-'\" Copyright (c) 1998-2000 by Scriptics Corporation.
+'\" Copyright (c) 1998-2000 Scriptics Corporation.
 '\" All rights reserved.
-'\" 
-.TH Tcl_Init 3 8.0 Tcl "Tcl Library Procedures"
+'\"
+.TH Tcl_Init 3 9.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
@@ -13,10 +13,16 @@ Tcl_Init \- find and source initialization script
 .sp
 int
 \fBTcl_Init\fR(\fIinterp\fR)
+.sp
+const char *
+\fBTcl_SetPreInitScript\fR(\fIscriptPtr\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp *interp
 .AP Tcl_Interp *interp in
 Interpreter to initialize.
+.AP "const char" *scriptPtr in
+Address of the initialization script.
 .BE
 
 .SH DESCRIPTION
@@ -26,9 +32,19 @@ Interpreter to initialize.
 path.
 .PP
 \fBTcl_Init\fR is typically called from \fBTcl_AppInit\fR procedures.
-
+.PP
+\fBTcl_SetPreInitScript\fR registers the pre-initialization script and
+returns the former (now replaced) script pointer.
+A value of \fINULL\fR may be passed to not register any script.
+The pre-initialization script is executed by \fBTcl_Init\fR before accessing
+the file system. The purpose is to typically prepare a custom file system
+(like an embedded zip-file) to be activated before the search.
+.PP
+When used in stub-enabled embedders, the stubs table must be first initialized
+using one of \fBTcl_InitSubsystems\fR, \fBTcl_SetPanicProc\fR,
+\fBTcl_FindExecutable\fR
+or \fBTclZipfs_AppHook\fR before \fBTcl_SetPreInitScript\fR may be called.
 .SH "SEE ALSO"
 Tcl_AppInit, Tcl_Main
-
 .SH KEYWORDS
 application, initialization, interpreter
diff --git a/doc/InitStubs.3 b/doc/InitStubs.3
index f4be477..decea87 100644
--- a/doc/InitStubs.3
+++ b/doc/InitStubs.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_InitStubs 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -15,19 +15,22 @@ Tcl_InitStubs \- initialize the Tcl stubs mechanism
 .sp
 const char *
 \fBTcl_InitStubs\fR(\fIinterp, version, exact\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp *interp
 .AP Tcl_Interp *interp in
 Tcl interpreter handle.
 .AP "const char" *version in
-A version string consisting of one or more decimal numbers
-separated by dots.
+A version string, indicating which minimal version of Tcl is accepted.
+Normally just \fB"9.0"\fR. Or \fB"8.6-"\fR if both 8.6 and 9.0 are accepted.
 .AP int exact in
-Non-zero means that only the particular version specified by
-\fIversion\fR is acceptable.
-Zero means that versions newer than \fIversion\fR are also
-acceptable as long as they have the same major version number
-as \fIversion\fR.
+1 means that only the particular version specified by
+\fIversion\fR is accepted.
+0 means that versions newer than \fIversion\fR are also
+accepted. If the\fIversion\fR ends with \fB-\fR,
+higher major versions are accepted as well, otherwise
+the major version must be the same as in \fIversion\fR.
+Other bits have no effect.
 .BE
 .SH INTRODUCTION
 .PP
@@ -37,7 +40,7 @@ This provides two significant benefits to Tcl users:
 .IP 1) 5
 Extensions that use the stubs mechanism can be loaded into
 multiple versions of Tcl without being recompiled or
-relinked.
+relinked, as long as the major Tcl version is the same.
 .IP 2) 5
 Extensions that use the stubs mechanism can be dynamically
 loaded into statically-linked Tcl applications.
@@ -63,9 +66,9 @@ Define the \fBUSE_TCL_STUBS\fR symbol.  Typically, you would include the
 \fB\-DUSE_TCL_STUBS\fR flag when compiling the extension.
 .IP 3) 5
 Link the extension with the Tcl stubs library instead of the standard
-Tcl library.  On Unix platforms, the library name is
-\fIlibtclstub8.5.a\fR; on Windows platforms, the library name is
-\fItclstub85.lib\fR.
+Tcl library.  For example, to use the Tcl 9.0 ABI on Unix platforms,
+the library name is \fIlibtclstub.a\fR; on Windows platforms, the
+library name is \fItclstub.lib\fR.
 .PP
 If the extension also requires the Tk API, it must also call
 \fBTk_InitStubs\fR to initialize the Tk stubs interface and link
@@ -76,14 +79,20 @@ more information.
 and ensure that the correct version of Tcl is loaded.  In addition
 to an interpreter handle, it accepts as arguments a version number
 and a Boolean flag indicating whether the extension requires
-an exact version match or not.  If \fIexact\fR is 0, then the
-extension is indicating that newer versions of Tcl are acceptable
-as long as they have the same major version number as \fIversion\fR;
-non-zero means that only the specified \fIversion\fR is acceptable.
+an exact version match or not.  If \fIexact\fR is 0, then versions
+newer than \fIversion\fR are also accepted. If the\fIversion\fR
+ends with \fB-\fR, higher major versions are accepted as well,
+otherwise the major version must be the same as in \fIversion\fR.
+1 means that only the specified \fIversion\fR is accepted.
+\fIversion\fR can be any construct as described for \fBpackage require\fR
+(\fBPACKAGE\fR manual page in the section \fBREQUIREMENT\fR).
+Multiple requirement strings like with \fBpackage require\fR are not supported.
+
 \fBTcl_InitStubs\fR returns a string containing the actual version
 of Tcl satisfying the request, or NULL if the Tcl version is not
-acceptable, does not support stubs, or any other error condition occurred.
+accepted, does not support stubs, or any other error condition occurred.
 .SH "SEE ALSO"
 Tk_InitStubs
+package
 .SH KEYWORDS
 stubs
diff --git a/doc/InitSubSyst.3 b/doc/InitSubSyst.3
new file mode 100644
index 0000000..4680633
--- /dev/null
+++ b/doc/InitSubSyst.3
@@ -0,0 +1,36 @@
+'\"
+'\" Copyright (c) 2018 Tcl Core Team
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.so man.macros
+.TH Tcl_InitSubsystems 3 9.0 Tcl "Tcl Library Procedures"
+.BS
+.SH NAME
+Tcl_InitSubsystems \- initialize the Tcl library.
+.SH SYNOPSIS
+.nf
+\fB#include <tcl.h>\fR
+.sp
+const char *
+\fBTcl_InitSubsystems\fR()
+.fi
+.BE
+.SH DESCRIPTION
+.PP
+The \fBTcl_InitSubsystems\fR procedure initializes the Tcl
+library. This procedure is typically invoked as the very
+first thing in the application's main program.
+.PP
+The result of \fBTcl_InitSubsystems\fR is the full Tcl version with
+build information (e.g., \fB9.0.0+abcdef...abcdef.gcc-1002\fR).
+.PP
+\fBTcl_InitSubsystems\fR is very similar in use to
+\fBTcl_FindExecutable\fR. It can be used when Tcl is
+used as utility library, no other encodings than utf-8,
+iso8859-1 or utf-16 are used, and no interest exists in the
+value of \fBinfo nameofexecutable\fR. The system encoding will not
+be extracted from the environment, but falls back to utf-8.
+.SH KEYWORDS
+binary, executable file
diff --git a/doc/IntObj.3 b/doc/IntObj.3
index e228bdb..7bf100d 100644
--- a/doc/IntObj.3
+++ b/doc/IntObj.3
@@ -3,12 +3,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_IntObj 3 8.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_NewIntObj, Tcl_NewLongObj, Tcl_NewWideIntObj, Tcl_SetIntObj, Tcl_SetLongObj, Tcl_SetWideIntObj, Tcl_GetIntFromObj, Tcl_GetLongFromObj, Tcl_GetWideIntFromObj, Tcl_NewBignumObj, Tcl_SetBignumObj, Tcl_GetBignumFromObj, Tcl_TakeBignumFromObj \- manipulate Tcl objects as integer values
+Tcl_NewIntObj, Tcl_NewLongObj, Tcl_NewWideIntObj, Tcl_NewWideUIntObj, Tcl_SetIntObj, Tcl_SetLongObj, Tcl_SetWideIntObj, Tcl_SetWideUIntObj, Tcl_GetIntFromObj, Tcl_GetIntForIndex, Tcl_GetLongFromObj, Tcl_GetSizeIntFromObj, Tcl_GetWideIntFromObj, Tcl_GetWideUIntFromObj, Tcl_NewBignumObj, Tcl_SetBignumObj, Tcl_GetBignumFromObj, Tcl_TakeBignumFromObj \- manipulate Tcl values as integers
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -22,23 +22,36 @@ Tcl_Obj *
 Tcl_Obj *
 \fBTcl_NewWideIntObj\fR(\fIwideValue\fR)
 .sp
+Tcl_Obj *
+\fBTcl_NewWideUIntObj\fR(\fIuwideValue\fR)
+.sp
 \fBTcl_SetIntObj\fR(\fIobjPtr, intValue\fR)
 .sp
 \fBTcl_SetLongObj\fR(\fIobjPtr, longValue\fR)
 .sp
 \fBTcl_SetWideIntObj\fR(\fIobjPtr, wideValue\fR)
 .sp
+\fBTcl_SetWideUIntObj\fR(\fIobjPtr, uwideValue\fR)
+.sp
 int
 \fBTcl_GetIntFromObj\fR(\fIinterp, objPtr, intPtr\fR)
 .sp
 int
+\fBTcl_GetIntForIndex\fR(\fIinterp, objPtr, endValue, indexPtr\fR)
+.sp
+int
 \fBTcl_GetLongFromObj\fR(\fIinterp, objPtr, longPtr\fR)
 .sp
 int
 \fBTcl_GetWideIntFromObj\fR(\fIinterp, objPtr, widePtr\fR)
 .sp
+int
+\fBTcl_GetWideUIntFromObj\fR(\fIinterp, objPtr, uwidePtr\fR)
+.sp
+int
+\fBTcl_GetSizeIntFromObj\fR(\fIinterp, objPtr, sizePtr\fR)
+.sp
 .sp
-.VS 8.5
 \fB#include <tclTomMath.h>\fR
 .sp
 Tcl_Obj *
@@ -54,21 +67,26 @@ int
 .sp
 int
 \fBTcl_InitBignumFromDouble\fR(\fIinterp, doubleValue, bigValue\fR)
-.VE 8.5
+.fi
 .SH ARGUMENTS
 .AS Tcl_WideInt doubleValue in/out
+.AP Tcl_Size endValue in
+\fBTcl_GetIntForIndex\fR will return this when the input value is "end".
 .AP int intValue in
-Integer value used to initialize or set a Tcl object.
+Integer value used to initialize or set a Tcl value.
 .AP long longValue in
-Long integer value used to initialize or set a Tcl object.
+Long integer value used to initialize or set a Tcl value.
 .AP Tcl_WideInt wideValue in
-Wide integer value used to initialize or set a Tcl object.
+Wide integer value used to initialize or set a Tcl value.
+.AP Tcl_WideUInt uwideValue in
+Unsigned wide integer value used to initialize or set a Tcl value.
 .AP Tcl_Obj *objPtr in/out
 For \fBTcl_SetIntObj\fR, \fBTcl_SetLongObj\fR, \fBTcl_SetWideIntObj\fR,
-and \fBTcl_SetBignumObj\fR, this points to the object in which to store an
+\fBTcl_SetWideUIntObj\fR,
+and \fBTcl_SetBignumObj\fR, this points to the value in which to store an
 integral value.  For \fBTcl_GetIntFromObj\fR, \fBTcl_GetLongFromObj\fR,
 \fBTcl_GetWideIntFromObj\fR, \fBTcl_GetBignumFromObj\fR, and
-\fBTcl_TakeBignumFromObj\fR, this refers to the object from which
+\fBTcl_TakeBignumFromObj\fR, this refers to the value from which
 to retrieve an integral value.
 .AP Tcl_Interp *interp in/out
 When non-NULL, an error message is left here when integral value
@@ -77,25 +95,25 @@ retrieval fails.
 Points to place to store the integer value retrieved from \fIobjPtr\fR.
 .AP long *longPtr out
 Points to place to store the long integer value retrieved from \fIobjPtr\fR.
+.AP Tcl_Size *indexPtr out
+Points to place to store the Tcl_Size value retrieved from \fIobjPtr\fR.
 .AP Tcl_WideInt *widePtr out
 Points to place to store the wide integer value retrieved from \fIobjPtr\fR.
+.AP Tcl_WideUInt *uwidePtr out
+Points to place to store the unsigned wide integer value retrieved from \fIobjPtr\fR.
+.AP Tcl_Size *sizePtr out
+Points to place to store the \fBTcl_Size\fR integer value retrieved from \fIobjPtr\fR.
 .AP mp_int *bigValue in/out
-.VS 8.5
 Points to a multi-precision integer structure declared by the LibTomMath
 library.
-.VE 8.5
 .AP double doubleValue in
-.VS 8.5
 Double value from which the integer part is determined and
 used to initialize a multi-precision integer value.
-.VE 8.5
 .BE
-
 .SH DESCRIPTION
 .PP
-.VS 8.5
-These procedures are used to create, modify, and read Tcl objects
-that hold integral values.  
+These procedures are used to create, modify, and read Tcl values
+that hold integral values.
 .PP
 The different routines exist to accommodate different integral types in C
 with which values might be exchanged.  The C integral types for which Tcl
@@ -105,28 +123,44 @@ are provided by the C language standard.  The \fBTcl_WideInt\fR type is a
 typedef defined to be whatever signed integral type covers at least the
 64-bit integer range (-9223372036854775808 to 9223372036854775807).  Depending
 on the platform and the C compiler, the actual type might be
-\fBlong int\fR, \fBlong long int\fR, \fBint64\fR, or something else.
+\fBlong long int\fR, or something else.
+The \fBTcl_Size\fR typedef is a signed integer type
+capable of holding the maximum permitted lengths of Tcl values like
+strings and lists. Correspondingly, the preprocessor constant
+\fBTCL_SIZE_MAX\fR defines the maximum value that can be stored
+in a variable of this type.
 The \fBmp_int\fR type is a multiple-precision integer type defined
-by the LibTomMath multiple-precision integer library.  
+by the LibTomMath multiple-precision integer library.
 .PP
 The \fBTcl_NewIntObj\fR, \fBTcl_NewLongObj\fR, \fBTcl_NewWideIntObj\fR,
-and \fBTcl_NewBignumObj\fR routines each create and return a new
-Tcl object initialized to the integral value of the argument.  The
-returned Tcl object is unshared.
+\fBTcl_NewWideUIntObj\fR, and \fBTcl_NewBignumObj\fR
+routines each create and return a new Tcl value initialized to the
+integral value of the argument.  The returned Tcl value is unshared.
 .PP
 The \fBTcl_SetIntObj\fR, \fBTcl_SetLongObj\fR, \fBTcl_SetWideIntObj\fR,
-and \fBTcl_SetBignumObj\fR routines each set the value of an existing
-Tcl object pointed to by \fIobjPtr\fR to the integral value provided
-by the other argument.  The \fIobjPtr\fR argument must point to an
-unshared Tcl object.  Any attempt to set the value of a shared Tcl object
-violates Tcl's copy-on-write policy.  Any existing string representation
-or internal representation in the unshared Tcl object will be freed
-as a consequence of setting the new value.
+\fBTcl_SetWideUIntObj\fR, and \fBTcl_SetBignumObj\fR
+routines each set the value of an existing Tcl value pointed to by \fIobjPtr\fR
+to the integral value provided by the other argument.  The \fIobjPtr\fR
+argument must point to an unshared Tcl value.  Any attempt to set the
+value of a shared Tcl value violates Tcl's copy-on-write policy.  Any
+existing string representation or internal representation in the unshared
+Tcl value will be freed as a consequence of setting the new value.
+.PP
+The \fBTcl_GetIntForIndex\fR routine attempts to retrieve an index
+value from the Tcl value \fIobjPtr\fR.  If the attempt succeeds,
+then \fBTCL_OK\fR is returned, and the value is written to the
+storage provided by the caller.  The attempt might fail if
+\fIobjPtr\fR does not hold an index value.  If the attempt fails,
+then \fBTCL_ERROR\fR is returned, and if \fIinterp\fR is non-NULL,
+an error message is left in \fIinterp\fR.  The \fBTcl_ObjType\fR
+of \fIobjPtr\fR may be changed to make subsequent calls to the
+same routine more efficient.
 .PP
 The \fBTcl_GetIntFromObj\fR, \fBTcl_GetLongFromObj\fR,
-\fBTcl_GetWideIntFromObj\fR, \fBTcl_GetBignumFromObj\fR, and
+\fBTcl_GetWideIntFromObj\fR, \fBTcl_GetSizeIntFromObj\fR,
+\fBTcl_GetBignumFromObj\fR, and
 \fBTcl_TakeBignumFromObj\fR routines attempt to retrieve an integral
-value of the appropriate type from the Tcl object \fIobjPtr\fR.  If the
+value of the appropriate type from the Tcl value \fIobjPtr\fR.  If the
 attempt succeeds, then \fBTCL_OK\fR is returned, and the value is
 written to the storage provided by the caller.  The attempt might
 fail if \fIobjPtr\fR does not hold an integral value, or if the
@@ -135,7 +169,7 @@ then \fBTCL_ERROR\fR is returned, and if \fIinterp\fR is non-NULL,
 an error message is left in \fIinterp\fR.  The \fBTcl_ObjType\fR
 of \fIobjPtr\fR may be changed to make subsequent calls to the
 same routine more efficient. Unlike the other functions,
-\fBTcl_TakeBignumFromObj\fR may set the content of the Tcl object
+\fBTcl_TakeBignumFromObj\fR may set the content of the Tcl value
 \fIobjPtr\fR to an empty string in the process of retrieving the
 multiple-precision integer value.
 .PP
@@ -153,8 +187,30 @@ If anything later in the caller requires
 The \fBTcl_InitBignumFromDouble\fR routine is a utility procedure
 that extracts the integer part of \fIdoubleValue\fR and stores that
 integer value in the \fBmp_int\fR value \fIbigValue\fR.
-.VE 8.5
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+\fBTcl_NewIntObj\fR, \fBTcl_NewLongObj\fR, \fBTcl_NewWideIntObj\fR, and
+\fBTcl_NewBignumObj\fR always return a zero-reference object, much like
+\fBTcl_NewObj\fR.
+.PP
+\fBTcl_SetIntObj\fR, \fBTcl_SetLongObj\fR, \fBTcl_SetWideIntObj\fR, and
+\fBTcl_SetBignumObj\fR do not modify the reference count of their \fIobjPtr\fR
+arguments, but do require that the object be unshared.
+.PP
+\fBTcl_GetIntFromObj\fR, \fBTcl_GetIntForIndex\fR, \fBTcl_GetLongFromObj\fR,
+\fBTcl_GetWideIntFromObj\fR, \fBTcl_GetSizeIntFromObj\fR,
+\fBTcl_GetBignumFromObj\fR, and
+\fBTcl_TakeBignumFromObj\fR do not modify the reference count of their
+\fIobjPtr\fR arguments; they only read. Note however that this function may
+set the interpreter result; if that is the only place that is holding a
+reference to the object, it will be deleted. Also note that if
+\fBTcl_TakeBignumFromObj\fR is given an unshared value, the value of that
+object may be modified; it is intended to be used when the value is
+.QW consumed
+by the operation at this point.
+
 .SH "SEE ALSO"
 Tcl_NewObj, Tcl_DecrRefCount, Tcl_IncrRefCount, Tcl_GetObjResult
 .SH KEYWORDS
-integer, integer object, integer type, internal representation, object, object type, string representation
+integer, integer value, integer type, internal representation, value,
+value type, string representation
diff --git a/doc/Interp.3 b/doc/Interp.3
deleted file mode 100644
index 10aadb7..0000000
--- a/doc/Interp.3
+++ /dev/null
@@ -1,126 +0,0 @@
-'\"
-'\" Copyright (c) 1989-1993 The Regents of the University of California.
-'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
-'\"
-'\" See the file "license.terms" for information on usage and redistribution
-'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-.TH Tcl_Interp 3 7.5 Tcl "Tcl Library Procedures"
-.so man.macros
-.BS
-.SH NAME
-Tcl_Interp \- client-visible fields of interpreter structures
-.SH SYNOPSIS
-.nf
-\fB#include <tcl.h>\fR
-.sp
-typedef struct {
-        char *\fIresult\fR;
-        Tcl_FreeProc *\fIfreeProc\fR;
-        int \fIerrorLine\fR;
-} Tcl_Interp;
-
-typedef void Tcl_FreeProc(char *\fIblockPtr\fR);
-.BE
-
-.SH DESCRIPTION
-.PP
-The \fBTcl_CreateInterp\fR procedure returns a pointer to a Tcl_Interp
-structure.  This pointer is then passed into other Tcl procedures
-to process commands in the interpreter and perform other operations
-on the interpreter.  Interpreter structures contain many fields
-that are used by Tcl, but only three that may be accessed by
-clients:  \fIresult\fR, \fIfreeProc\fR, and \fIerrorLine\fR.
-.PP
-.VS 8.5
-\fBNote that access to all three fields, \fIresult\fB, \fIfreeProc\fB and
-\fIerrorLine\fB is deprecated.\fR  Use \fBTcl_SetResult\fR,
-\fBTcl_GetResult\fR, and \fBTcl_GetReturnOptions\fR instead.
-.VE 8.5
-.PP
-The \fIresult\fR and \fIfreeProc\fR fields are used to return
-results or error messages from commands.
-This information is returned by command procedures back to \fBTcl_Eval\fR,
-and by \fBTcl_Eval\fR back to its callers.
-The \fIresult\fR field points to the string that represents the
-result or error message, and the \fIfreeProc\fR field tells how
-to dispose of the storage for the string when it is not needed anymore.
-The easiest way for command procedures to manipulate these
-fields is to call procedures like \fBTcl_SetResult\fR
-or \fBTcl_AppendResult\fR;  they
-will hide all the details of managing the fields.
-The description below is for those procedures that manipulate the
-fields directly.
-.PP
-Whenever a command procedure returns, it must ensure
-that the \fIresult\fR field of its interpreter points to the string
-being returned by the command.
-The \fIresult\fR field must always point to a valid string.
-If a command wishes to return no result then \fIinterp->result\fR
-should point to an empty string.
-Normally, results are assumed to be statically allocated,
-which means that the contents will not change before the next time
-\fBTcl_Eval\fR is called or some other command procedure is invoked.
-In this case, the \fIfreeProc\fR field must be zero.
-Alternatively, a command procedure may dynamically
-allocate its return value (e.g. using \fBTcl_Alloc\fR)
-and store a pointer to it in \fIinterp->result\fR.
-In this case, the command procedure must also set \fIinterp->freeProc\fR
-to the address of a procedure that can free the value, or \fBTCL_DYNAMIC\fR
-if the storage was allocated directly by Tcl or by a call to
-\fBTcl_Alloc\fR. 
-If \fIinterp->freeProc\fR is non-zero, then Tcl will call \fIfreeProc\fR
-to free the space pointed to by \fIinterp->result\fR before it
-invokes the next command.
-If a client procedure overwrites \fIinterp->result\fR when
-\fIinterp->freeProc\fR is non-zero, then it is responsible for calling
-\fIfreeProc\fR to free the old \fIinterp->result\fR (the \fBTcl_FreeResult\fR
-macro should be used for this purpose).
-.PP
-\fIFreeProc\fR should have arguments and result that match the
-\fBTcl_FreeProc\fR declaration above:  it receives a single
-argument which is a pointer to the result value to free.
-In most applications \fBTCL_DYNAMIC\fR is the only non-zero value ever
-used for \fIfreeProc\fR.
-However, an application may store a different procedure address
-in \fIfreeProc\fR in order to use an alternate memory allocator
-or in order to do other cleanup when the result memory is freed.
-.PP
-As part of processing each command, \fBTcl_Eval\fR initializes
-\fIinterp->result\fR
-and \fIinterp->freeProc\fR just before calling the command procedure for
-the command.  The \fIfreeProc\fR field will be initialized to zero,
-and \fIinterp->result\fR will point to an empty string.  Commands that
-do not return any value can simply leave the fields alone.
-Furthermore, the empty string pointed to by \fIresult\fR is actually
-part of an array of \fBTCL_RESULT_SIZE\fR characters (approximately 200).
-If a command wishes to return a short string, it can simply copy
-it to the area pointed to by \fIinterp->result\fR.  Or, it can use
-the sprintf procedure to generate a short result string at the location
-pointed to by \fIinterp->result\fR.
-.PP
-It is a general convention in Tcl-based applications that the result
-of an interpreter is normally in the initialized state described
-in the previous paragraph.
-Procedures that manipulate an interpreter's result (e.g. by
-returning an error) will generally assume that the result
-has been initialized when the procedure is called.
-If such a procedure is to be called after the result has been
-changed, then \fBTcl_ResetResult\fR should be called first to
-reset the result to its initialized state.  The direct use of
-\fIinterp->result\fR is strongly deprecated (see \fBTcl_SetResult\fR).
-.PP
-The \fIerrorLine\fR
-field is valid only after \fBTcl_Eval\fR returns
-a \fBTCL_ERROR\fR return code.  In this situation the \fIerrorLine\fR
-field identifies the line number of the command being executed when
-the error occurred.  The line numbers are relative to the command
-being executed:  1 means the first line of the command passed to
-\fBTcl_Eval\fR, 2 means the second line, and so on.
-The \fIerrorLine\fR field is typically used in conjunction with
-\fBTcl_AddErrorInfo\fR to report information about where an error
-occurred.
-\fIErrorLine\fR should not normally be modified except by \fBTcl_Eval\fR.
-
-.SH KEYWORDS
-free, initialized, interpreter, malloc, result
diff --git a/doc/Limit.3 b/doc/Limit.3
index a113b74..a4005f3 100644
--- a/doc/Limit.3
+++ b/doc/Limit.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_LimitCheck 3 8.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -28,35 +28,28 @@ int
 int
 \fBTcl_LimitTypeEnabled\fR(\fIinterp, type\fR)
 .sp
-void
 \fBTcl_LimitTypeSet\fR(\fIinterp, type\fR)
 .sp
-void
 \fBTcl_LimitTypeReset\fR(\fIinterp, type\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_LimitGetCommands\fR(\fIinterp\fR)
 .sp
-void
 \fBTcl_LimitSetCommands\fR(\fIinterp, commandLimit\fR)
 .sp
-void
 \fBTcl_LimitGetTime\fR(\fIinterp, timeLimitPtr\fR)
 .sp
-void
 \fBTcl_LimitSetTime\fR(\fIinterp, timeLimitPtr\fR)
 .sp
 int
 \fBTcl_LimitGetGranularity\fR(\fIinterp, type\fR)
 .sp
-void
 \fBTcl_LimitSetGranularity\fR(\fIinterp, type, granularity\fR)
 .sp
-void
 \fBTcl_LimitAddHandler\fR(\fIinterp, type, handlerProc, clientData, deleteProc\fR)
 .sp
-void
 \fBTcl_LimitRemoveHandler\fR(\fIinterp, type, handlerProc, clientData\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_LimitHandlerDeleteProc commandLimit in/out
 .AP Tcl_Interp *interp in
@@ -65,7 +58,7 @@ its limits checked.
 .AP int type in
 The type of limit that the operation refers to.  This must be either
 \fBTCL_LIMIT_COMMANDS\fR or \fBTCL_LIMIT_TIME\fR.
-.AP int commandLimit in
+.AP Tcl_Size commandLimit in
 The maximum number of commands (as reported by \fBinfo cmdcount\fR)
 that may be executed in the interpreter.
 .AP Tcl_Time *timeLimitPtr in/out
@@ -83,14 +76,13 @@ the handler returns.  Many handlers may be attached to the same
 interpreter limit; their order of execution is not defined, and they
 must be identified by \fIhandlerProc\fR and \fIclientData\fR when they
 are deleted.
-.AP ClientData clientData in
+.AP void *clientData in
 Arbitrary pointer-sized word used to pass some context to the
 \fIhandlerProc\fR function.
 .AP Tcl_LimitHandlerDeleteProc *deleteProc in
 Function to call whenever a handler is deleted.  May be NULL if the
 \fIclientData\fR requires no deletion.
 .BE
-
 .SH DESCRIPTION
 .PP
 Tcl's interpreter resource limit subsystem allows for close control
@@ -117,7 +109,7 @@ execution of the callbacks is unspecified) execution in the limited
 interpreter is stopped by raising an error and setting a flag that
 prevents the \fBcatch\fR command in that interpreter from trapping
 that error.  It is up to the context that started execution in that
-interpreter (typically a master interpreter) to handle the error.
+interpreter (typically the main interpreter) to handle the error.
 .SH "LIMIT CHECKING API"
 .PP
 To check the resource limits for an interpreter, call
@@ -162,8 +154,8 @@ the function that will actually be called; it should have the
 following prototype:
 .PP
 .CS
-typedef void Tcl_LimitHandlerProc(
-        ClientData \fIclientData\fR,
+typedef void \fBTcl_LimitHandlerProc\fR(
+        void *\fIclientData\fR,
         Tcl_Interp *\fIinterp\fR);
 .CE
 .PP
@@ -179,8 +171,8 @@ function to call to delete the \fIclientData\fR value.  It may be
 following prototype:
 .PP
 .CS
-typedef void Tcl_LimitHandlerDeleteProc(
-        ClientData \fIclientData\fR);
+typedef void \fBTcl_LimitHandlerDeleteProc\fR(
+        void *\fIclientData\fR);
 .CE
 .PP
 A limit handler may be deleted using \fBTcl_LimitRemoveHandler\fR; the
@@ -189,6 +181,5 @@ with \fBTcl_LimitAddHandler\fR) with exactly matching \fItype\fR,
 \fIhandlerProc\fR and \fIclientData\fR arguments.  This function
 always invokes the \fIdeleteProc\fR on the \fIclientData\fR (unless
 the \fIdeleteProc\fR was NULL or \fBTCL_STATIC\fR).
-
 .SH KEYWORDS
 interpreter, resource, limit, commands, time, callback
diff --git a/doc/LinkVar.3 b/doc/LinkVar.3
index 9c13008..0fe4122 100644
--- a/doc/LinkVar.3
+++ b/doc/LinkVar.3
@@ -4,12 +4,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_LinkVar 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_LinkVar, Tcl_UnlinkVar, Tcl_UpdateLinkedVar \- link Tcl variable to C variable
+Tcl_LinkArray, Tcl_LinkVar, Tcl_UnlinkVar, Tcl_UpdateLinkedVar \- link Tcl variable to C variable
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -17,34 +17,54 @@ Tcl_LinkVar, Tcl_UnlinkVar, Tcl_UpdateLinkedVar \- link Tcl variable to C variab
 int
 \fBTcl_LinkVar\fR(\fIinterp, varName, addr, type\fR)
 .sp
+.VS TIP312
+int
+\fBTcl_LinkArray\fR(\fIinterp, varName, addr, type, size\fR)
+.VE TIP312
+.sp
 \fBTcl_UnlinkVar\fR(\fIinterp, varName\fR)
 .sp
 \fBTcl_UpdateLinkedVar\fR(\fIinterp, varName\fR)
+.fi
 .SH ARGUMENTS
-.AS Tcl_Interp writable
+.AS Tcl_Interp varName in
 .AP Tcl_Interp *interp in
 Interpreter that contains \fIvarName\fR.
 Also used by \fBTcl_LinkVar\fR to return error messages.
 .AP "const char" *varName in
 Name of global variable.
-.AP char *addr in
+.AP void *addr in
 Address of C variable that is to be linked to \fIvarName\fR.
+.sp
+.VS TIP312
+In \fBTcl_LinkArray\fR, may be NULL to tell Tcl to create the storage
+for the array in the variable.
+.VE TIP312
 .AP int type in
-Type of C variable.  Must be one of \fBTCL_LINK_INT\fR,
-.VS 8.5
+Type of C variable for \fBTcl_LinkVar\fR or type of array element for
+\fBTcl_LinkArray\fR.  Must be one of \fBTCL_LINK_INT\fR,
 \fBTCL_LINK_UINT\fR, \fBTCL_LINK_CHAR\fR, \fBTCL_LINK_UCHAR\fR,
 \fBTCL_LINK_SHORT\fR, \fBTCL_LINK_USHORT\fR, \fBTCL_LINK_LONG\fR,
-\fBTCL_LINK_ULONG\fR,
-.VE 8.5
-\fBTCL_LINK_WIDE_INT\fR,
-.VS 8.5
-\fBTCL_LINK_WIDE_UINT\fR, \fBTCL_LINK_FLOAT\fR,
-.VE 8.5
-\fBTCL_LINK_DOUBLE\fR, \fBTCL_LINK_BOOLEAN\fR, or
-\fBTCL_LINK_STRING\fR, optionally OR'ed with \fBTCL_LINK_READ_ONLY\fR
-to make Tcl variable read-only.
+\fBTCL_LINK_ULONG\fR, \fBTCL_LINK_WIDE_INT\fR,
+\fBTCL_LINK_WIDE_UINT\fR, \fBTCL_LINK_FLOAT\fR, \fBTCL_LINK_DOUBLE\fR,
+\fBTCL_LINK_BOOLEAN\fR, or one of the extra ones listed below.
+.sp
+In \fBTcl_LinkVar\fR, the additional linked type \fBTCL_LINK_STRING\fR may be
+used.
+.sp
+.VS TIP312
+In \fBTcl_LinkArray\fR, the additional linked types \fBTCL_LINK_CHARS\fR and
+\fBTCL_LINK_BINARY\fR may be used.
+.VE TIP312
+.sp
+All the above for both functions may be
+optionally OR'ed with \fBTCL_LINK_READ_ONLY\fR to make the Tcl
+variable read-only.
+.AP Tcl_Size size in
+.VS TIP312
+The number of elements in the C array. Must be greater than zero.
+.VE TIP312
 .BE
-
 .SH DESCRIPTION
 .PP
 \fBTcl_LinkVar\fR uses variable traces to keep the Tcl variable
@@ -58,112 +78,177 @@ while setting up the link (e.g. because \fIvarName\fR is the
 name of array) then \fBTCL_ERROR\fR is returned and the interpreter's result
 contains an error message.
 .PP
+.VS TIP312
+\fBTcl_LinkArray\fR is similar, but for arrays of fixed size (given by
+the \fIsize\fR argument). When asked to allocate the backing C array
+storage (via the \fIaddr\fR argument being NULL), it writes the
+address that it allocated to the Tcl interpreter result.
+.VE TIP312
+.PP
 The \fItype\fR argument specifies the type of the C variable,
+or the type of the elements of the C array,
 and must have one of the following values, optionally OR'ed with
 \fBTCL_LINK_READ_ONLY\fR:
 .TP
 \fBTCL_LINK_INT\fR
-The C variable is of type \fBint\fR.
+.
+The C variable, or each element of the C array, is of type \fBint\fR.
 Any value written into the Tcl variable must have a proper integer
 form acceptable to \fBTcl_GetIntFromObj\fR;  attempts to write
 non-integer values into \fIvarName\fR will be rejected with
-Tcl errors.
-.VS 8.5
+Tcl errors. Incomplete integer representations (like the empty
+string, '+', '-' or the hex/octal/decimal/binary prefix) are accepted
+as if they are valid too.
 .TP
 \fBTCL_LINK_UINT\fR
-The C variable is of type \fBunsigned int\fR.
+.
+The C variable, or each element of the C array, is of type \fBunsigned int\fR.
 Any value written into the Tcl variable must have a proper unsigned
 integer form acceptable to \fBTcl_GetWideIntFromObj\fR and in the
 platform's defined range for the \fBunsigned int\fR type; attempts to
 write non-integer values (or values outside the range) into
-\fIvarName\fR will be rejected with Tcl errors.
+\fIvarName\fR will be rejected with Tcl errors. Incomplete integer
+representations (like the empty string, '+', '-' or the hex/octal/decimal/binary
+prefix) are accepted as if they are valid too.
 .TP
 \fBTCL_LINK_CHAR\fR
-The C variable is of type \fBchar\fR.
+.
+The C variable, or each element of the C array, is of type \fBchar\fR.
 Any value written into the Tcl variable must have a proper integer
 form acceptable to \fBTcl_GetIntFromObj\fR and be in the range of the
 \fBchar\fR datatype; attempts to write non-integer or out-of-range
-values into \fIvarName\fR will be rejected with Tcl errors.
+values into \fIvarName\fR will be rejected with Tcl errors. Incomplete
+integer representations (like the empty string, '+', '-' or the
+hex/octal/decimal/binary prefix) are accepted as if they are valid too.
+.RS
+.PP
+.VS TIP312
+If using an array of these, consider using \fBTCL_LINK_CHARS\fR instead.
+.VE TIP312
+.RE
+.TP
+\fBTCL_LINK_CHARS\fR
+.VS TIP312
+The C array is of type \fBchar *\fR and is mapped into Tcl as a string.
+Any value written into the Tcl variable must have the same length as
+the underlying storage. Only supported with \fBTcl_LinkArray\fR.
+.VE TIP312
 .TP
 \fBTCL_LINK_UCHAR\fR
-The C variable is of type \fBunsigned char\fR.
+.
+The C variable, or each element of the C array, is of type \fBunsigned char\fR.
 Any value written into the Tcl variable must have a proper unsigned
 integer form acceptable to \fBTcl_GetIntFromObj\fR and in the
 platform's defined range for the \fBunsigned char\fR type; attempts to
 write non-integer values (or values outside the range) into
-\fIvarName\fR will be rejected with Tcl errors.
+\fIvarName\fR will be rejected with Tcl errors. Incomplete integer
+representations (like the empty string, '+', '-' or the hex/octal/decimal/binary
+prefix) are accepted as if they are valid too.
+.RS
+.PP
+.VS TIP312
+If using an array of these, consider using \fBTCL_LINK_BINARY\fR instead.
+.VE TIP312
+.RE
+.TP
+\fBTCL_LINK_BINARY\fR
+.VS TIP312
+The C array is of type \fBunsigned char *\fR and is mapped into Tcl
+as a bytearray.
+Any value written into the Tcl variable must have the same length as
+the underlying storage. Only supported with \fBTcl_LinkArray\fR.
+.VE TIP312
 .TP
 \fBTCL_LINK_SHORT\fR
-The C variable is of type \fBshort\fR.
+.
+The C variable, or each element of the C array, is of type \fBshort\fR.
 Any value written into the Tcl variable must have a proper integer
 form acceptable to \fBTcl_GetIntFromObj\fR and be in the range of the
 \fBshort\fR datatype; attempts to write non-integer or out-of-range
-values into \fIvarName\fR will be rejected with Tcl errors.
+values into \fIvarName\fR will be rejected with Tcl errors. Incomplete
+integer representations (like the empty string, '+', '-' or the
+hex/octal/decimal/binary prefix) are accepted as if they are valid too.
 .TP
 \fBTCL_LINK_USHORT\fR
-The C variable is of type \fBunsigned short\fR.
+.
+The C variable, or each element of the C array, is of type \fBunsigned short\fR.
 Any value written into the Tcl variable must have a proper unsigned
 integer form acceptable to \fBTcl_GetIntFromObj\fR and in the
 platform's defined range for the \fBunsigned short\fR type; attempts to
 write non-integer values (or values outside the range) into
-\fIvarName\fR will be rejected with Tcl errors.
+\fIvarName\fR will be rejected with Tcl errors. Incomplete integer
+representations (like the empty string, '+', '-' or the hex/octal/decimal/binary
+prefix) are accepted as if they are valid too.
 .TP
 \fBTCL_LINK_LONG\fR
-The C variable is of type \fBlong\fR.
+.
+The C variable, or each element of the C array, is of type \fBlong\fR.
 Any value written into the Tcl variable must have a proper integer
 form acceptable to \fBTcl_GetLongFromObj\fR; attempts to write
 non-integer or out-of-range
-values into \fIvarName\fR will be rejected with Tcl errors.
+values into \fIvarName\fR will be rejected with Tcl errors. Incomplete
+integer representations (like the empty string, '+', '-' or the
+hex/octal/decimal/binary prefix) are accepted as if they are valid too.
 .TP
 \fBTCL_LINK_ULONG\fR
-The C variable is of type \fBunsigned long\fR.
+.
+The C variable, or each element of the C array, is of type \fBunsigned long\fR.
 Any value written into the Tcl variable must have a proper unsigned
 integer form acceptable to \fBTcl_GetWideIntFromObj\fR and in the
 platform's defined range for the \fBunsigned long\fR type; attempts to
 write non-integer values (or values outside the range) into
-\fIvarName\fR will be rejected with Tcl errors.
-.VE 8.5
+\fIvarName\fR will be rejected with Tcl errors. Incomplete integer
+representations (like the empty string, '+', '-' or the hex/octal/decimal/binary
+prefix) are accepted as if they are valid too.
 .TP
 \fBTCL_LINK_DOUBLE\fR
-The C variable is of type \fBdouble\fR.
+.
+The C variable, or each element of the C array, is of type \fBdouble\fR.
 Any value written into the Tcl variable must have a proper real
 form acceptable to \fBTcl_GetDoubleFromObj\fR;  attempts to write
 non-real values into \fIvarName\fR will be rejected with
-Tcl errors.
-.VS 8.5
+Tcl errors. Incomplete integer or real representations (like the
+empty string, '.', '+', '-' or the hex/octal/decimal/binary prefix) are
+accepted as if they are valid too.
 .TP
 \fBTCL_LINK_FLOAT\fR
-The C variable is of type \fBfloat\fR.
+.
+The C variable, or each element of the C array, is of type \fBfloat\fR.
 Any value written into the Tcl variable must have a proper real
 form acceptable to \fBTcl_GetDoubleFromObj\fR and must be within the
 range acceptable for a \fBfloat\fR; attempts to
 write non-real values (or values outside the range) into
-\fIvarName\fR will be rejected with Tcl errors.
-.VE 8.5
+\fIvarName\fR will be rejected with Tcl errors. Incomplete integer
+or real representations (like the empty string, '.', '+', '-' or
+the hex/octal/decimal/binary prefix) are accepted as if they are valid too.
 .TP
 \fBTCL_LINK_WIDE_INT\fR
-The C variable is of type \fBTcl_WideInt\fR (which is an integer type
+.
+The C variable, or each element of the C array, is of type \fBTcl_WideInt\fR
+(which is an integer type
 at least 64-bits wide on all platforms that can support it.)
 Any value written into the Tcl variable must have a proper integer
 form acceptable to \fBTcl_GetWideIntFromObj\fR;  attempts to write
 non-integer values into \fIvarName\fR will be rejected with
-Tcl errors.
-.VS 8.5
+Tcl errors. Incomplete integer representations (like the empty
+string, '+', '-' or the hex/octal/decimal/binary prefix) are accepted
+as if they are valid too.
 .TP
 \fBTCL_LINK_WIDE_UINT\fR
-The C variable is of type \fBTcl_WideUInt\fR (which is an unsigned
-integer type at least 64-bits wide on all platforms that can support
-it.)
+.
+The C variable, or each element of the C array, is of type \fBTcl_WideUInt\fR
+(which is an unsigned integer type at least 64-bits wide on all platforms that
+can support it.)
 Any value written into the Tcl variable must have a proper unsigned
-integer form acceptable to \fBTcl_GetWideIntFromObj\fR (it will be
-cast to unsigned);
-.\" FIXME! Use bignums instead.
+wideinteger form acceptable to \fBTcl_GetWideUIntFromObj\fR;
 attempts to write non-integer values into \fIvarName\fR will be
-rejected with Tcl errors.
-.VE 8.5
+rejected with Tcl errors. Incomplete integer representations (like
+the empty string, '+', '-' or the hex/octal/decimal/binary prefix) are accepted
+as if they are valid too.
 .TP
 \fBTCL_LINK_BOOLEAN\fR
-The C variable is of type \fBint\fR.
+.
+The C variable, or each element of the C array, is of type \fBint\fR.
 If its value is zero then it will read from Tcl as
 .QW 0 ;
 otherwise it will read from Tcl as
@@ -176,15 +261,17 @@ non-boolean values into \fIvarName\fR will be rejected with
 Tcl errors.
 .TP
 \fBTCL_LINK_STRING\fR
+.
 The C variable is of type \fBchar *\fR.
 If its value is not NULL then it must be a pointer to a string
-allocated with \fBTcl_Alloc\fR or \fBckalloc\fR.
+allocated with \fBTcl_Alloc\fR.
 Whenever the Tcl variable is modified the current C string will be
 freed and new memory will be allocated to hold a copy of the variable's
 new value.
 If the C variable contains a NULL pointer then the Tcl variable
 will read as
 .QW NULL .
+This is only supported by \fBTcl_LinkVar\fR.
 .PP
 If the \fBTCL_LINK_READ_ONLY\fR flag is present in \fItype\fR then the
 variable will be read-only from Tcl, so that its value can only be
@@ -204,6 +291,16 @@ Tk widget that wishes to display the value of the variable), the
 trace will not trigger when the C variable has changed.
 \fBTcl_UpdateLinkedVar\fR ensures that any traces on the Tcl
 variable are invoked.
-
+.PP
+Note that, as with any call to a Tcl interpreter, \fBTcl_UpdateLinkedVar\fR
+must be called from the same thread that created the interpreter. The safest
+mechanism is to ensure that the C variable is only ever updated from the same
+thread that created the interpreter (possibly in response to an event posted
+with \fBTcl_ThreadQueueEvent\fR), but when it is necessary to update the
+variable in a separate thread, it is advised that \fBTcl_AsyncMark\fR be used
+to indicate to the thread hosting the interpreter that it is ready to run
+\fBTcl_UpdateLinkedVar\fR.
+.SH "SEE ALSO"
+Tcl_TraceVar(3)
 .SH KEYWORDS
-boolean, integer, link, read-only, real, string, traces, variable
+boolean, integer, link, read-only, real, string, trace, variable
diff --git a/doc/ListObj.3 b/doc/ListObj.3
index a4f2a09..6e4d0d5 100644
--- a/doc/ListObj.3
+++ b/doc/ListObj.3
@@ -3,12 +3,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_ListObj 3 8.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_ListObjAppendList, Tcl_ListObjAppendElement, Tcl_NewListObj, Tcl_SetListObj, Tcl_ListObjGetElements, Tcl_ListObjLength, Tcl_ListObjIndex, Tcl_ListObjReplace \- manipulate Tcl objects as lists
+Tcl_ListObjAppendList, Tcl_ListObjAppendElement, Tcl_NewListObj, Tcl_SetListObj, Tcl_ListObjGetElements, Tcl_ListObjLength, Tcl_ListObjIndex, Tcl_ListObjReplace \- manipulate Tcl values as lists
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -28,156 +28,168 @@ int
 \fBTcl_ListObjGetElements\fR(\fIinterp, listPtr, objcPtr, objvPtr\fR)
 .sp
 int
-\fBTcl_ListObjLength\fR(\fIinterp, listPtr, intPtr\fR)
+\fBTcl_ListObjLength\fR(\fIinterp, listPtr, lengthPtr\fR)
 .sp
 int
 \fBTcl_ListObjIndex\fR(\fIinterp, listPtr, index, objPtrPtr\fR)
 .sp
 int
 \fBTcl_ListObjReplace\fR(\fIinterp, listPtr, first, count, objc, objv\fR)
+.fi
 .SH ARGUMENTS
 .AS "Tcl_Obj *const" *elemListPtr in/out
 .AP Tcl_Interp *interp in
-If an error occurs while converting an object to be a list object,
-an error message is left in the interpreter's result object
+If an error occurs while converting a value to be a list value,
+an error message is left in the interpreter's result value
 unless \fIinterp\fR is NULL.
 .AP Tcl_Obj *listPtr in/out
-Points to the list object to be manipulated.
-If \fIlistPtr\fR does not already point to a list object,
+Points to the list value to be manipulated.
+If \fIlistPtr\fR does not already point to a list value,
 an attempt will be made to convert it to one.
 .AP Tcl_Obj *elemListPtr in/out
-For \fBTcl_ListObjAppendList\fR, this points to a list object
+For \fBTcl_ListObjAppendList\fR, this points to a list value
 containing elements to be appended onto \fIlistPtr\fR.
 Each element of *\fIelemListPtr\fR will
 become a new element of \fIlistPtr\fR.
 If *\fIelemListPtr\fR is not NULL and
-does not already point to a list object,
+does not already point to a list value,
 an attempt will be made to convert it to one.
 .AP Tcl_Obj *objPtr in
 For \fBTcl_ListObjAppendElement\fR,
-points to the Tcl object that will be appended to \fIlistPtr\fR.
+points to the Tcl value that will be appended to \fIlistPtr\fR.
 For \fBTcl_SetListObj\fR,
-this points to the Tcl object that will be converted to a list object
+this points to the Tcl value that will be converted to a list value
 containing the \fIobjc\fR elements of the array referenced by \fIobjv\fR.
-.AP int *objcPtr in
+.AP "Tcl_Size \&| int" *objcPtr in
 Points to location where \fBTcl_ListObjGetElements\fR
-stores the number of element objects in \fIlistPtr\fR.
+stores the number of element values in \fIlistPtr\fR.
+May be (Tcl_Size *)NULL when not used. If it points to a variable which
+type is not \fBTcl_Size\fR, a compiler warning will be generated.
+If your extensions is compiled with -DTCL_8_API, this function will return
+NULL for lists with more than INT_MAX elements (which should
+trigger proper error-handling), otherwise expect it to crash.
 .AP Tcl_Obj ***objvPtr out
 A location where \fBTcl_ListObjGetElements\fR stores a pointer to an array
-of pointers to the element objects of \fIlistPtr\fR.  
-.AP int objc in
-The number of Tcl objects that \fBTcl_NewListObj\fR
-will insert into a new list object,
+of pointers to the element values of \fIlistPtr\fR.
+.AP Tcl_Size objc in
+The number of Tcl values that \fBTcl_NewListObj\fR
+will insert into a new list value,
 and \fBTcl_ListObjReplace\fR will insert into \fIlistPtr\fR.
 For \fBTcl_SetListObj\fR,
-the number of Tcl objects to insert into \fIobjPtr\fR.
+the number of Tcl values to insert into \fIobjPtr\fR.
 .AP "Tcl_Obj *const" objv[] in
-An array of pointers to objects.
-\fBTcl_NewListObj\fR will insert these objects into a new list object
+An array of pointers to values.
+\fBTcl_NewListObj\fR will insert these values into a new list value
 and \fBTcl_ListObjReplace\fR will insert them into an existing \fIlistPtr\fR.
-Each object will become a separate list element.  
-.AP int *intPtr out
+Each value will become a separate list element.
+.AP "Tcl_Size \&| int" *lengthPtr out
 Points to location where \fBTcl_ListObjLength\fR
 stores the length of the list.
-.AP int index in
+May be (Tcl_Size *)NULL when not used. If it points to a variable which
+type is not \fBTcl_Size\fR, a compiler warning will be generated.
+If your extensions is compiled with -DTCL_8_API, this function will return
+TCL_ERROR for lists with more than INT_MAX elements (which should
+trigger proper error-handling), otherwise expect it to crash.
+.AP Tcl_Size index in
 Index of the list element that \fBTcl_ListObjIndex\fR
 is to return.
 The first element has index 0.
 .AP Tcl_Obj **objPtrPtr out
 Points to place where \fBTcl_ListObjIndex\fR is to store
-a pointer to the resulting list element object.
-.AP int first in
+a pointer to the resulting list element value.
+.AP Tcl_Size first in
 Index of the starting list element that \fBTcl_ListObjReplace\fR
 is to replace.
 The list's first element has index 0.
-.AP int count in
+.AP Tcl_Size count in
 The number of elements that \fBTcl_ListObjReplace\fR
 is to replace.
 .BE
 
 .SH DESCRIPTION
 .PP
-Tcl list objects have an internal representation that supports
+Tcl list values have an internal representation that supports
 the efficient indexing and appending.
 The procedures described in this man page are used to
-create, modify, index, and append to Tcl list objects from C code.
+create, modify, index, and append to Tcl list values from C code.
 .PP
 \fBTcl_ListObjAppendList\fR and \fBTcl_ListObjAppendElement\fR
-both add one or more objects
-to the end of the list object referenced by \fIlistPtr\fR.
-\fBTcl_ListObjAppendList\fR appends each element of the list object
+both add one or more values
+to the end of the list value referenced by \fIlistPtr\fR.
+\fBTcl_ListObjAppendList\fR appends each element of the list value
 referenced by \fIelemListPtr\fR while
-\fBTcl_ListObjAppendElement\fR appends the single object
+\fBTcl_ListObjAppendElement\fR appends the single value
 referenced by \fIobjPtr\fR.
-Both procedures will convert the object referenced by \fIlistPtr\fR
-to a list object if necessary.
+Both procedures will convert the value referenced by \fIlistPtr\fR
+to a list value if necessary.
 If an error occurs during conversion,
 both procedures return \fBTCL_ERROR\fR and leave an error message
-in the interpreter's result object if \fIinterp\fR is not NULL.
-Similarly, if \fIelemListPtr\fR does not already refer to a list object,
+in the interpreter's result value if \fIinterp\fR is not NULL.
+Similarly, if \fIelemListPtr\fR does not already refer to a list value,
 \fBTcl_ListObjAppendList\fR will attempt to convert it to one
 and if an error occurs during conversion,
 will return \fBTCL_ERROR\fR
-and leave an error message in the interpreter's result object
+and leave an error message in the interpreter's result value
 if interp is not NULL.
 Both procedures invalidate any old string representation of \fIlistPtr\fR
-and, if it was converted to a list object,
+and, if it was converted to a list value,
 free any old internal representation.
 Similarly, \fBTcl_ListObjAppendList\fR frees any old internal representation
-of \fIelemListPtr\fR if it converts it to a list object.
+of \fIelemListPtr\fR if it converts it to a list value.
 After appending each element in \fIelemListPtr\fR,
 \fBTcl_ListObjAppendList\fR increments the element's reference count
 since \fIlistPtr\fR now also refers to it.
 For the same reason, \fBTcl_ListObjAppendElement\fR
 increments \fIobjPtr\fR's reference count.
 If no error occurs,
-the two procedures return \fBTCL_OK\fR after appending the objects.
+the two procedures return \fBTCL_OK\fR after appending the values.
 .PP
 \fBTcl_NewListObj\fR and \fBTcl_SetListObj\fR
-create a new object or modify an existing object to hold 
+create a new value or modify an existing value to hold
 the \fIobjc\fR elements of the array referenced by \fIobjv\fR
-where each element is a pointer to a Tcl object.
+where each element is a pointer to a Tcl value.
 If \fIobjc\fR is less than or equal to zero,
-they return an empty object. If \fIobjv\fR is NULL, the resulting list
+they return an empty value. If \fIobjv\fR is NULL, the resulting list
 contains 0 elements, with reserved space in an internal representation
 for \fIobjc\fR more elements (to avoid its reallocation later).
-The new object's string representation is left invalid.
+The new value's string representation is left invalid.
 The two procedures increment the reference counts
-of the elements in \fIobjc\fR since the list object now refers to them.
-The new list object returned by \fBTcl_NewListObj\fR
+of the elements in \fIobjc\fR since the list value now refers to them.
+The new list value returned by \fBTcl_NewListObj\fR
 has reference count zero.
 .PP
 \fBTcl_ListObjGetElements\fR returns a count and a pointer to an array of
-the elements in a list object.  It returns the count by storing it in the
+the elements in a list value.  It returns the count by storing it in the
 address \fIobjcPtr\fR.  Similarly, it returns the array pointer by storing
 it in the address \fIobjvPtr\fR.
 The memory pointed to is managed by Tcl and should not be freed or written
 to by the caller. If the list is empty, 0 is stored at \fIobjcPtr\fR
-and NULL at \fIobjvPtr\fR.
-If \fIlistPtr\fR is not already a list object, \fBTcl_ListObjGetElements\fR
+and NULL at \fIobjvPtr\fR. If \fIobjcPtr\fR points to a variable
+of type \fBint\fR and the list contains more than 2**31 elements, the
+function returns \fBTCL_ERROR\fR.
+If \fIlistPtr\fR is not already a list value, \fBTcl_ListObjGetElements\fR
 will attempt to convert it to one; if the conversion fails, it returns
 \fBTCL_ERROR\fR and leaves an error message in the interpreter's result
-object if \fIinterp\fR is not NULL.
+value if \fIinterp\fR is not NULL.
 Otherwise it returns \fBTCL_OK\fR after storing the count and array pointer.
 .PP
-\fBTcl_ListObjLength\fR returns the number of elements in the list object
+\fBTcl_ListObjLength\fR returns the number of elements in the list value
 referenced by \fIlistPtr\fR.
-It returns this count by storing an integer in the address \fIintPtr\fR.
-If the object is not already a list object,
+If the value is not already a list value,
 \fBTcl_ListObjLength\fR will attempt to convert it to one;
 if the conversion fails, it returns \fBTCL_ERROR\fR
-and leaves an error message in the interpreter's result object
+and leaves an error message in the interpreter's result value
 if \fIinterp\fR is not NULL.
 Otherwise it returns \fBTCL_OK\fR after storing the list's length.
 .PP
-The procedure \fBTcl_ListObjIndex\fR returns a pointer to the object
+The procedure \fBTcl_ListObjIndex\fR returns a pointer to the value
 at element \fIindex\fR in the list referenced by \fIlistPtr\fR.
-It returns this object by storing a pointer to it
+It returns this value by storing a pointer to it
 in the address \fIobjPtrPtr\fR.
-If \fIlistPtr\fR does not already refer to a list object,
+If \fIlistPtr\fR does not already refer to a list value,
 \fBTcl_ListObjIndex\fR will attempt to convert it to one;
 if the conversion fails, it returns \fBTCL_ERROR\fR
-and leaves an error message in the interpreter's result object
+and leaves an error message in the interpreter's result value
 if \fIinterp\fR is not NULL.
 If the index is out of range,
 that is, \fIindex\fR is negative or
@@ -185,19 +197,29 @@ greater than or equal to the number of elements in the list,
 \fBTcl_ListObjIndex\fR stores a NULL in \fIobjPtrPtr\fR
 and returns \fBTCL_OK\fR.
 Otherwise it returns \fBTCL_OK\fR after storing the element's
-object pointer.
+value pointer.
 The reference count for the list element is not incremented;
-the caller must do that if it needs to retain a pointer to the element.
+the caller must do that if it needs to retain a pointer to the
+element, or "bounce" the reference count when the element is no longer
+needed. This is because a returned element may have a reference count
+of 0. Abstract Lists create a new element Obj on demand, and do not
+retain any element Obj values. Therefore, the caller is responsible for
+freeing the element when it is no longer needed. Note that this is a
+change from Tcl 8 where all list elements always have a reference
+count of at least 1. (See \fBABSTRACT LIST TYPES\fR, \fBSTORAGE
+MANAGEMENT OF VALUES\fR, Tcl_BounceRefCount(3), and lseq(n) for more
+information.)
+
 .PP
 \fBTcl_ListObjReplace\fR replaces zero or more elements
 of the list referenced by \fIlistPtr\fR
-with the \fIobjc\fR objects in the array referenced by \fIobjv\fR.
-If \fIlistPtr\fR does not point to a list object,
+with the \fIobjc\fR values in the array referenced by \fIobjv\fR.
+If \fIlistPtr\fR does not point to a list value,
 \fBTcl_ListObjReplace\fR will attempt to convert it to one;
 if the conversion fails, it returns \fBTCL_ERROR\fR
-and leaves an error message in the interpreter's result object
+and leaves an error message in the interpreter's result value
 if \fIinterp\fR is not NULL.
-Otherwise, it returns \fBTCL_OK\fR after replacing the objects.
+Otherwise, it returns \fBTCL_OK\fR after replacing the values.
 If \fIobjv\fR is NULL, no new elements are added.
 If the argument \fIfirst\fR is zero or negative,
 it refers to the first element.
@@ -212,28 +234,28 @@ designated by \fIfirst\fR.
 old string representation.
 The reference counts of any elements inserted from \fIobjv\fR
 are incremented since the resulting list now refers to them.
-Similarly, the reference counts for any replaced objects are decremented.
+Similarly, the reference counts for any replaced values are decremented.
 .PP
 Because \fBTcl_ListObjReplace\fR combines
 both element insertion and deletion,
 it can be used to implement a number of list operations.
-For example, the following code inserts the \fIobjc\fR objects
-referenced by the array of object pointers \fIobjv\fR
+For example, the following code inserts the \fIobjc\fR values
+referenced by the array of value pointers \fIobjv\fR
 just before the element \fIindex\fR of the list referenced by \fIlistPtr\fR:
 .PP
 .CS
-result = Tcl_ListObjReplace(interp, listPtr, index, 0,
+result = \fBTcl_ListObjReplace\fR(interp, listPtr, index, 0,
         objc, objv);
 .CE
 .PP
-Similarly, the following code appends the \fIobjc\fR objects
+Similarly, the following code appends the \fIobjc\fR values
 referenced by the array \fIobjv\fR
 to the end of the list \fIlistPtr\fR:
 .PP
 .CS
-result = Tcl_ListObjLength(interp, listPtr, &length);
+result = \fBTcl_ListObjLength\fR(interp, listPtr, &length);
 if (result == TCL_OK) {
-    result = Tcl_ListObjReplace(interp, listPtr, length, 0,
+    result = \fBTcl_ListObjReplace\fR(interp, listPtr, length, 0,
             objc, objv);
 }
 .CE
@@ -243,10 +265,36 @@ by simply calling \fBTcl_ListObjReplace\fR
 with a NULL \fIobjvPtr\fR:
 .PP
 .CS
-result = Tcl_ListObjReplace(interp, listPtr, first, count,
+result = \fBTcl_ListObjReplace\fR(interp, listPtr, first, count,
         0, NULL);
 .CE
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+\fBTcl_NewListObj\fR always returns a zero-reference object, much like
+\fBTcl_NewObj\fR. If a non-NULL \fIobjv\fR argument is given, the reference
+counts of the first \fIobjc\fR values in that array are incremented.
+.PP
+\fBTcl_SetListObj\fR does not modify the reference count of its \fIobjPtr\fR
+argument, but does require that the object be unshared. The reference counts
+of the first \fIobjc\fR values in the \fIobjv\fR array are incremented.
+.PP
+\fBTcl_ListObjGetElements\fR, \fBTcl_ListObjIndex\fR, and
+\fBTcl_ListObjLength\fR do not modify the reference count of their
+\fIlistPtr\fR arguments; they only read. Note however that these three
+functions may set the interpreter result; if that is the only place that is
+holding a reference to the object, it will be deleted.
+.PP
+\fBTcl_ListObjAppendList\fR, \fBTcl_ListObjAppendElement\fR, and
+\fBTcl_ListObjReplace\fR require an unshared \fIlistPtr\fR argument.
+\fBTcl_ListObjAppendList\fR only reads its \fIelemListPtr\fR argument.
+\fBTcl_ListObjAppendElement\fR increments the reference count of its
+\fIobjPtr\fR on success. \fBTcl_ListObjReplace\fR increments the reference
+count of the first \fIobjc\fR values in the \fIobjv\fR array on success.  Note
+however that all these three functions may set the interpreter result on
+failure; if that is the only place that is holding a reference to the object,
+it will be deleted.
 .SH "SEE ALSO"
-Tcl_NewObj, Tcl_DecrRefCount, Tcl_IncrRefCount, Tcl_GetObjResult
+Tcl_NewObj(3), Tcl_DecrRefCount(3), Tcl_IncrRefCount(3), Tcl_GetObjResult(3)
 .SH KEYWORDS
-append, index, insert, internal representation, length, list, list object, list type, object, object type, replace, string representation
+append, index, insert, internal representation, length, list, list value,
+list type, value, value type, replace, string representation
diff --git a/doc/Load.3 b/doc/Load.3
new file mode 100644
index 0000000..01af42b
--- /dev/null
+++ b/doc/Load.3
@@ -0,0 +1,75 @@
+'\"
+'\" Copyright (c) 2009-2010 Kevin B. Kenny
+'\" Copyright (c) 2010 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH Load 3 8.6 Tcl "Tcl Library Procedures"
+.so man.macros
+.BS
+.SH NAME
+Tcl_LoadFile, Tcl_FindSymbol \- platform-independent dynamic library loading
+.SH SYNOPSIS
+.nf
+\fB#include <tcl.h>\fR
+.sp
+int
+\fBTcl_LoadFile\fR(\fIinterp, pathPtr, symbols, flags, procPtrs, loadHandlePtr\fR)
+.sp
+void *
+\fBTcl_FindSymbol\fR(\fIinterp, loadHandle, symbol\fR)
+.fi
+.SH ARGUMENTS
+.AS Tcl_LoadHandle loadHandle in
+.AP Tcl_Interp *interp in
+Interpreter to use for reporting error messages.
+.AP Tcl_Obj *pathPtr in
+The name of the file to load. If it is a single name, the library search path
+of the current environment will be used to resolve it.
+.AP "const char *const" symbols[] in
+Array of names of symbols to be resolved during the load of the library, or
+NULL if no symbols are to be resolved. If an array is given, the last entry in
+the array must be NULL.
+.AP int flags in
+The value should normally be 0, but \fITCL_LOAD_GLOBAL\fR or \fITCL_LOAD_LAZY\fR
+or a combination of those two is allowed as well.
+.AP void *procPtrs out
+Points to an array that will hold the addresses of the functions described in
+the \fIsymbols\fR argument. Should be NULL if no symbols are to be resolved.
+.AP Tcl_LoadHandle *loadHandlePtr out
+Points to a variable that will hold the handle to the abstract token
+describing the library that has been loaded.
+.AP Tcl_LoadHandle loadHandle in
+Abstract token describing the library to look up a symbol in.
+.AP "const char" *symbol in
+The name of the symbol to look up.
+.BE
+.SH DESCRIPTION
+.PP
+\fBTcl_LoadFile\fR loads a file from the filesystem (including potentially any
+virtual filesystem that has been installed) and provides a handle to it that
+may be used in further operations. The \fIsymbols\fR array, if non-NULL,
+supplies a set of names of symbols (typically functions) that must be resolved
+from the library and which will be stored in the array indicated by
+\fIprocPtrs\fR. If any of the symbols is not resolved, the loading of the file
+will fail with an error message left in the interpreter (if that is non-NULL).
+The result of \fBTcl_LoadFile\fR is a standard Tcl error code. The library may
+be unloaded with \fBTcl_FSUnloadFile\fR.
+.PP
+\fBTcl_FindSymbol\fR locates a symbol in a loaded library and returns it. If
+the symbol cannot be found, it returns NULL and sets an error message in the
+given \fIinterp\fR (if that is non-NULL). Note that it is unsafe to use this
+operation on a handle that has been passed to \fBTcl_FSUnloadFile\fR.
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+The reference count of the \fIpathPtr\fR argument to \fBTcl_LoadFile\fR may be
+incremented. As such, it should not be given a zero reference count value.
+.SH "SEE ALSO"
+Tcl_FSLoadFile(3), Tcl_FSUnloadFile(3), load(n), unload(n)
+.SH KEYWORDS
+binary code, loading, shared library
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/Method.3 b/doc/Method.3
new file mode 100644
index 0000000..c7e9cdd
--- /dev/null
+++ b/doc/Method.3
@@ -0,0 +1,325 @@
+'\"
+'\" Copyright (c) 2007 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH Tcl_Method 3 0.1 TclOO "TclOO Library Functions"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+Tcl_ClassSetConstructor, Tcl_ClassSetDestructor, Tcl_MethodDeclarerClass, Tcl_MethodDeclarerObject, Tcl_MethodIsPublic, Tcl_MethodIsPrivate, Tcl_MethodIsType, Tcl_MethodIsType2, Tcl_MethodName, Tcl_NewInstanceMethod, Tcl_NewInstanceMethod2, Tcl_NewMethod, Tcl_NewMethod2, Tcl_ObjectContextInvokeNext, Tcl_ObjectContextIsFiltering, Tcl_ObjectContextMethod, Tcl_ObjectContextObject, Tcl_ObjectContextSkippedArgs \- manipulate methods and method-call contexts
+.SH SYNOPSIS
+.nf
+\fB#include <tclOO.h>\fR
+.sp
+Tcl_Method
+\fBTcl_NewMethod\fR(\fIinterp, class, nameObj, flags, methodTypePtr,
+              clientData\fR)
+.sp
+Tcl_Method
+\fBTcl_NewMethod2\fR(\fIinterp, class, nameObj, flags, methodType2Ptr,
+              clientData\fR)
+.sp
+Tcl_Method
+\fBTcl_NewInstanceMethod\fR(\fIinterp, object, nameObj, flags, methodTypePtr,
+                      clientData\fR)
+.sp
+Tcl_Method
+\fBTcl_NewInstanceMethod2\fR(\fIinterp, object, nameObj, flags, methodType2Ptr,
+                      clientData\fR)
+.sp
+\fBTcl_ClassSetConstructor\fR(\fIinterp, class, method\fR)
+.sp
+\fBTcl_ClassSetDestructor\fR(\fIinterp, class, method\fR)
+.sp
+Tcl_Class
+\fBTcl_MethodDeclarerClass\fR(\fImethod\fR)
+.sp
+Tcl_Object
+\fBTcl_MethodDeclarerObject\fR(\fImethod\fR)
+.sp
+Tcl_Obj *
+\fBTcl_MethodName\fR(\fImethod\fR)
+.sp
+.VS TIP500
+int
+\fBTcl_MethodIsPublic\fR(\fImethod\fR)
+.VE TIP500
+.sp
+int
+\fBTcl_MethodIsPrivate\fR(\fImethod\fR)
+.sp
+int
+\fBTcl_MethodIsType\fR(\fImethod, methodTypePtr, clientDataPtr\fR)
+.sp
+int
+\fBTcl_MethodIsType2\fR(\fImethod, methodType2Ptr, clientDataPtr\fR)
+.sp
+int
+\fBTcl_ObjectContextInvokeNext\fR(\fIinterp, context, objc, objv, skip\fR)
+.sp
+int
+\fBTcl_ObjectContextIsFiltering\fR(\fIcontext\fR)
+.sp
+Tcl_Method
+\fBTcl_ObjectContextMethod\fR(\fIcontext\fR)
+.sp
+Tcl_Object
+\fBTcl_ObjectContextObject\fR(\fIcontext\fR)
+.sp
+Tcl_Size
+\fBTcl_ObjectContextSkippedArgs\fR(\fIcontext\fR)
+.fi
+.SH ARGUMENTS
+.AS void *clientData in
+.AP Tcl_Interp *interp in/out
+The interpreter holding the object or class to create or update a method in.
+.AP Tcl_Object object in
+The object to create the method in.
+.AP Tcl_Class class in
+The class to create the method in.
+.AP Tcl_Obj *nameObj in
+The name of the method to create. Should not be NULL unless creating
+constructors or destructors.
+.AP int flags in
+A flag saying (currently) what the visibility of the method is. The supported
+public values of this flag are \fBTCL_OO_METHOD_PUBLIC\fR (which is fixed at 1
+for backward compatibility) for an exported method,
+\fBTCL_OO_METHOD_UNEXPORTED\fR (which is fixed at 0 for backward
+compatibility) for a non-exported method,
+.VS TIP500
+and \fBTCL_OO_METHOD_PRIVATE\fR for a private method.
+.VE TIP500
+.AP Tcl_MethodType *methodTypePtr in
+A description of the type of the method to create, or the type of method to
+compare against.
+.AP Tcl_MethodType2 *methodType2Ptr in
+A description of the type of the method to create, or the type of method to
+compare against.
+.AP void *clientData in
+A piece of data that is passed to the implementation of the method without
+interpretation.
+.AP void **clientDataPtr out
+A pointer to a variable in which to write the \fIclientData\fR value supplied
+when the method was created. If NULL, the \fIclientData\fR value will not be
+retrieved.
+.AP Tcl_Method method in
+A reference to a method to query.
+.AP Tcl_ObjectContext context in
+A reference to a method-call context. Note that client code \fImust not\fR
+retain a reference to a context.
+.AP Tcl_Size objc in
+The number of arguments to pass to the method implementation.
+.AP "Tcl_Obj *const" *objv in
+An array of arguments to pass to the method implementation.
+.AP Tcl_Size skip in
+The number of arguments passed to the method implementation that do not
+represent "real" arguments.
+.BE
+.SH DESCRIPTION
+.PP
+A method is an operation carried out on an object that is associated with the
+object. Every method must be attached to either an object or a class; methods
+attached to a class are associated with all instances (direct and indirect) of
+that class.
+.PP
+Given a method, the entity that declared it can be found using
+\fBTcl_MethodDeclarerClass\fR which returns the class that the method is
+attached to (or NULL if the method is not attached to any class) and
+\fBTcl_MethodDeclarerObject\fR which returns the object that the method is
+attached to (or NULL if the method is not attached to an object). The name of
+the method can be retrieved with \fBTcl_MethodName\fR, whether the method
+is exported is retrieved with \fBTcl_MethodIsPublic\fR,
+.VS TIP500
+and whether the method is private is retrieved with \fBTcl_MethodIsPrivate\fR.
+.VE TIP500
+The type of the method
+can also be introspected upon to a limited degree; the function
+\fBTcl_MethodIsType\fR returns whether a method is of a particular type,
+assigning the per-method \fIclientData\fR to the variable pointed to by
+\fIclientDataPtr\fR if (that is non-NULL) if the type is matched.
+\fBTcl_MethodIsType2\fR does the same for TCL_OO_METHOD_VERSION_2.
+.SS "METHOD CREATION"
+.PP
+Methods are created by \fBTcl_NewMethod\fR and \fBTcl_NewInstanceMethod\fR,
+or by \fBTcl_NewMethod2\fR and \fBTcl_NewInstanceMethod2\fR which
+create a method attached to a class or an object respectively. In both cases,
+the \fInameObj\fR argument gives the name of the method to create, the
+\fIflags\fR argument states whether the method should be exported
+initially
+.VS TIP500
+or be marked as a private method,
+.VE TIP500
+the \fImethodTypePtr\fR or \fImethodType2Ptr\fR (for TCL_OO_METHOD_VERSION_2)
+argument describes the implementation of
+the method (see the \fBMETHOD TYPES\fR section below) and the \fIclientData\fR
+argument gives some implementation-specific data that is passed on to the
+implementation of the method when it is called.
+.PP
+When the \fInameObj\fR argument to \fBTcl_NewMethod\fR or \fBTcl_NewMethod2\fR is NULL, an
+unnamed method is created, which is used for constructors and destructors.
+Constructors should be installed into their class using the
+\fBTcl_ClassSetConstructor\fR function, and destructors (which must not
+require any arguments) should be installed into their class using the
+\fBTcl_ClassSetDestructor\fR function. Unnamed methods should not be used for
+any other purpose, and named methods should not be used as either constructors
+or destructors. Also note that a NULL \fImethodTypePtr\fR or \fImethodType2Ptr\fR is used to provide
+internal signaling, and should not be used in client code.
+.SS "METHOD CALL CONTEXTS"
+.PP
+When a method is called, a method-call context reference is passed in as one
+of the arguments to the implementation function. This context can be inspected
+to provide information about the caller, but should not be retained beyond the
+moment when the method call terminates.
+.PP
+The method that is being called can be retrieved from the context by using
+\fBTcl_ObjectContextMethod\fR, and the object that caused the method to be
+invoked can be retrieved with \fBTcl_ObjectContextObject\fR. The number of
+arguments that are to be skipped (e.g. the object name and method name in a
+normal method call) is read with \fBTcl_ObjectContextSkippedArgs\fR, and the
+context can also report whether it is working as a filter for another method
+through \fBTcl_ObjectContextIsFiltering\fR.
+.PP
+During the execution of a method, the method implementation may choose to
+invoke the stages of the method call chain that come after the current method
+implementation. This (the core of the \fBnext\fR command) is done using
+\fBTcl_ObjectContextInvokeNext\fR. Note that this function does not manipulate
+the call-frame stack, unlike the \fBnext\fR command; if the method
+implementation has pushed one or more extra frames on the stack as part of its
+implementation, it is also responsible for temporarily popping those frames
+from the stack while the \fBTcl_ObjectContextInvokeNext\fR function is
+executing. Note also that the method-call context is \fInever\fR deleted
+during the execution of this function.
+.SH "METHOD TYPES"
+.PP
+The types of methods are described by a pointer to a Tcl_MethodType or
+Tcl_MethodType2 (for TCL_OO_METHOD_VERSION_2) structure, which are defined as:
+.PP
+.CS
+typedef struct {
+    int \fIversion\fR;
+    const char *\fIname\fR;
+    Tcl_MethodCallProc *\fIcallProc\fR;
+    Tcl_MethodDeleteProc *\fIdeleteProc\fR;
+    Tcl_CloneProc *\fIcloneProc\fR;
+} \fBTcl_MethodType\fR;
+
+typedef struct {
+    int \fIversion\fR;
+    const char *\fIname\fR;
+    Tcl_MethodCallProc2 *\fIcallProc\fR;
+    Tcl_MethodDeleteProc *\fIdeleteProc\fR;
+    Tcl_CloneProc *\fIcloneProc\fR;
+} \fBTcl_MethodType2\fR;
+.CE
+.PP
+The \fIversion\fR field should always be declared equal to TCL_OO_METHOD_VERSION_CURRENT,
+TCL_OO_METHOD_VERSION_1 or TCL_OO_METHOD_VERSION_2. The
+\fIname\fR field provides a human-readable name for the type, and is the value
+that is exposed via the \fBinfo class methodtype\fR and
+\fBinfo object methodtype\fR Tcl commands.
+.PP
+The \fIcallProc\fR field gives a function that is called when the method is
+invoked; it must never be NULL.
+.PP
+The \fIdeleteProc\fR field gives a function that is used to delete a
+particular method, and is called when the method is replaced or removed; if
+the field is NULL, it is assumed that the method's \fIclientData\fR needs no
+special action to delete.
+.PP
+The \fIcloneProc\fR field is either a function that is used to copy a method's
+\fIclientData\fR (as part of \fBTcl_CopyObjectInstance\fR) or NULL to indicate
+that the \fIclientData\fR can just be copied directly.
+.SS "TCL_METHODCALLPROC FUNCTION SIGNATURE"
+.PP
+Functions matching this signature are called when the method is invoked.
+.PP
+.CS
+typedef int \fBTcl_MethodCallProc\fR(
+        void *\fIclientData\fR,
+        Tcl_Interp *\fIinterp\fR,
+        Tcl_ObjectContext \fIobjectContext\fR,
+        int \fIobjc\fR,
+        Tcl_Obj *const *\fIobjv\fR);
+
+typedef int \fBTcl_MethodCallProc2\fR(
+        void *\fIclientData\fR,
+        Tcl_Interp *\fIinterp\fR,
+        Tcl_ObjectContext \fIobjectContext\fR,
+        Tcl_Size \fIobjc\fR,
+        Tcl_Obj *const *\fIobjv\fR);
+.CE
+.PP
+The \fIclientData\fR argument to a Tcl_MethodCallProc is the value that was
+given when the method was created, the \fIinterp\fR is a place in which to
+execute scripts and access variables as well as being where to put the result
+of the method, and the \fIobjc\fR and \fIobjv\fR fields give the parameter
+objects to the method. The calling context of the method can be discovered
+through the \fIobjectContext\fR argument, and the return value from a
+Tcl_MethodCallProc is any Tcl return code (e.g. TCL_OK, TCL_ERROR).
+.SS "TCL_METHODDELETEPROC FUNCTION SIGNATURE"
+.PP
+Functions matching this signature are used when a method is deleted, whether
+through a new method being created or because the object or class is deleted.
+.PP
+.CS
+typedef void \fBTcl_MethodDeleteProc\fR(
+        void *\fIclientData\fR);
+.CE
+.PP
+The \fIclientData\fR argument to a Tcl_MethodDeleteProc will be the same as
+the value passed to the \fIclientData\fR argument to \fBTcl_NewMethod\fR or
+\fBTcl_NewInstanceMethod\fR when the method was created.
+.SS "TCL_CLONEPROC FUNCTION SIGNATURE"
+.PP
+Functions matching this signature are used to copy a method when the object or
+class is copied using \fBTcl_CopyObjectInstance\fR (or \fBoo::copy\fR).
+.PP
+.CS
+typedef int \fBTcl_CloneProc\fR(
+        Tcl_Interp *\fIinterp\fR,
+        void *\fIoldClientData\fR,
+        void **\fInewClientDataPtr\fR);
+.CE
+.PP
+The \fIinterp\fR argument gives a place to write an error message when the
+attempt to clone the object is to fail, in which case the clone procedure must
+also return TCL_ERROR; it should return TCL_OK otherwise.
+The \fIoldClientData\fR field to a Tcl_CloneProc gives the value from the
+method being copied from, and the \fInewClientDataPtr\fR field will point to
+a variable in which to write the value for the method being copied to.
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+The \fInameObj\fR argument to \fBTcl_NewMethod\fR and
+\fBTcl_NewInstanceMethod\fR (when non-NULL) will have its reference count
+incremented if there is no existing method with that name in that
+class/object.
+.PP
+The result of \fBTcl_MethodName\fR is a value with a reference count of at
+least one. It should not be modified without first duplicating it (with
+\fBTcl_DuplicateObj\fR).
+.PP
+The values in the first \fIobjc\fR values of the \fIobjv\fR argument to
+\fBTcl_ObjectContextInvokeNext\fR are assumed to have a reference count of at
+least 1; the containing array is assumed to endure until the next method
+implementation (see \fBnext\fR) returns. Be aware that methods may
+\fByield\fR; if any post-call actions are desired (e.g., decrementing the
+reference count of values passed in here), they must be scheduled with
+\fBTcl_NRAddCallback\fR.
+.PP
+The \fIcallProc\fR of the \fBTcl_MethodType\fR structure takes values of at
+least reference count 1 in its \fIobjv\fR argument. It may add its own
+references, but must not decrement the reference count below that level; the
+caller of the method will decrement the reference count once the method
+returns properly (and the reference will be held if the method \fByield\fRs).
+.SH "SEE ALSO"
+Class(3), NRE(3), oo::class(n), oo::define(n), oo::object(n)
+.SH KEYWORDS
+constructor, method, object
+
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/NRE.3 b/doc/NRE.3
new file mode 100644
index 0000000..2bf2698
--- /dev/null
+++ b/doc/NRE.3
@@ -0,0 +1,271 @@
+.\"
+.\" Copyright (c) 2008 Kevin B. Kenny.
+.\" Copyright (c) 2018 Nathan Coulter.
+.\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH NRE 3 8.6 Tcl "Tcl Library Procedures"
+.so man.macros
+.BS
+.SH NAME
+Tcl_NRCreateCommand, Tcl_NRCreateCommand2, Tcl_NRCallObjProc, Tcl_NRCallObjProc2, Tcl_NREvalObj, Tcl_NREvalObjv, Tcl_NRCmdSwap, Tcl_NRExprObj, Tcl_NRAddCallback \- Non-Recursive (stackless) evaluation of Tcl scripts.
+.SH SYNOPSIS
+.nf
+\fB#include <tcl.h>\fR
+.sp
+Tcl_Command
+\fBTcl_NRCreateCommand\fR(\fIinterp, cmdName, proc, nreProc, clientData,
+                    deleteProc\fR)
+.sp
+Tcl_Command
+\fBTcl_NRCreateCommand2\fR(\fIinterp, cmdName, proc2, nreProc2, clientData,
+                    deleteProc\fR)
+.sp
+int
+\fBTcl_NRCallObjProc\fR(\fIinterp, nreProc, clientData, objc, objv\fR)
+.sp
+int
+\fBTcl_NRCallObjProc2\fR(\fIinterp, nreProc2, clientData, objc, objv\fR)
+.sp
+int
+\fBTcl_NREvalObj\fR(\fIinterp, objPtr, flags\fR)
+.sp
+int
+\fBTcl_NREvalObjv\fR(\fIinterp, objc, objv, flags\fR)
+.sp
+int
+\fBTcl_NRCmdSwap\fR(\fIinterp, cmd, objc, objv, flags\fR)
+.sp
+int
+\fBTcl_NRExprObj\fR(\fIinterp, objPtr, resultPtr\fR)
+.sp
+\fBTcl_NRAddCallback\fR(\fIinterp, postProcPtr, data0, data1, data2, data3\fR)
+.fi
+.SH ARGUMENTS
+.AS Tcl_CmdDeleteProc *interp in
+.AP Tcl_Interp *interp in
+The relevant Interpreter.
+.AP "const char" *cmdName in
+Name of the command to create.
+.AP Tcl_ObjCmdProc *proc in
+Called in order to evaluate a command.  Is often just a small wrapper that uses
+\fBTcl_NRCallObjProc\fR to call \fInreProc\fR using a new trampoline.  Behaves
+in the same way as the \fIproc\fR argument to \fBTcl_CreateObjCommand\fR(3)
+(\fIq.v.\fR).
+.AP Tcl_ObjCmdProc2 *proc2 in
+Called in order to evaluate a command.  Is often just a small wrapper that uses
+\fBTcl_NRCallObjProc2\fR to call \fInreProc2\fR using a new trampoline.  Behaves
+in the same way as the \fIproc2\fR argument to \fBTcl_CreateObjCommand2\fR(3)
+(\fIq.v.\fR).
+.AP Tcl_ObjCmdProc *nreProc in
+Called instead of \fIproc\fR when a trampoline is already in use.
+.AP Tcl_ObjCmdProc2 *nreProc2 in
+Called instead of \fIproc2\fR when a trampoline is already in use.
+.AP void *clientData in
+Arbitrary one-word value passed to \fIproc\fR, \fInreProc\fR, \fIdeleteProc\fR
+and \fIobjProc\fR.
+.AP Tcl_CmdDeleteProc *deleteProc in/out
+Called before \fIcmdName\fR is deleted from the interpreter, allowing for
+command-specific cleanup. May be NULL.
+.AP Tcl_Size objc in
+Number of items in \fIobjv\fR.
+.AP Tcl_Obj **objv in
+Words in the command.
+.AP Tcl_Obj *objPtr in
+A script or expression to evaluate.
+.AP int flags in
+As described for \fITcl_EvalObjv\fR.
+.PP
+.AP Tcl_Command cmd in
+Token to use instead of one derived from the first word of \fIobjv\fR in order
+to evaluate a command.
+.AP Tcl_Obj *resultPtr out
+Pointer to an unshared Tcl_Obj where the result of the evaluation is stored if
+the return code is TCL_OK.
+.AP Tcl_NRPostProc *postProcPtr in
+A function to push.
+.AP void *data0 in
+.AP void *data1 in
+.AP void *data2 in
+.AP void *data3 in
+\fIdata0\fR through \fIdata3\fR are four one-word values that will be passed
+to the function designated by \fIpostProcPtr\fR when it is invoked.
+.BE
+.SH DESCRIPTION
+.PP
+These functions provide an interface to the function stack that an interpreter
+iterates through to evaluate commands.  The routine behind a command is
+implemented by an initial function and any additional functions that the
+routine pushes onto the stack as it progresses.  The interpreter itself pushes
+functions onto the stack to react to the end of a routine and to exercise other
+forms of control such as switching between in-progress stacks and the
+evaluation of other scripts at additional levels without adding frames to the C
+stack.  To execute a routine, the initial function for the routine is called
+and then a small bit of code called a \fItrampoline\fR iteratively takes
+functions off the stack and calls them, using the value of the last call as the
+value of the routine.
+.PP
+\fBTcl_NRCallObjProc\fR calls \fInreProc\fR using a new trampoline.
+.PP
+\fBTcl_NRCreateCommand\fR, an alternative to \fBTcl_CreateObjCommand\fR,
+resolves \fIcmdName\fR, which may contain namespace qualifiers, relative to the
+current namespace, creates a command by that name, and returns a token for the
+command which may be used in subsequent calls to \fBTcl_GetCommandName\fR.
+Except for a few cases noted below any existing command by the same name is
+first deleted.  If \fIinterp\fR is in the process of being deleted
+\fBTcl_NRCreateCommand\fR does not create any command, does not delete any
+command, and returns NULL.
+.PP
+\fBTcl_NRCreateCommand2\fR, is an alternative to \fBTcl_NRCreateCommand\fR
+in the same way as \fBTcl_CreateObjCommand2\fR.
+.PP
+\fBTcl_NREvalObj\fR pushes a function that is like \fBTcl_EvalObjEx\fR but
+consumes no space on the C stack.
+.PP
+\fBTcl_NREvalObjv\fR pushes a function that is like \fBTcl_EvalObjv\fR but
+consumes no space on the C stack.
+.PP
+\fBTcl_NRCmdSwap\fR is like \fBTcl_NREvalObjv\fR, but uses \fIcmd\fR, a token
+previously returned by \fBTcl_CreateObjCommand\fR or
+\fBTcl_GetCommandFromObj\fR, instead of resolving the first word of \fIobjv\fR.
+.  The name of this command must be the same as \fIobjv[0]\fR.
+.PP
+\fBTcl_NRExprObj\fR pushes a function that evaluates \fIobjPtr\fR as an
+expression in the same manner as \fBTcl_ExprObj\fR but without consuming space
+on the C stack.
+.PP
+All of the functions return \fBTCL_OK\fR if the evaluation of the script,
+command, or expression has been scheduled successfully.  Otherwise (for example
+if the command name cannot be resolved), they return \fBTCL_ERROR\fR and store
+a message as the interpreter's result.
+.PP
+\fBTcl_NRAddCallback\fR pushes \fIpostProcPtr\fR.  The signature for
+\fBTcl_NRPostProc\fR is:
+.PP
+.CS
+typedef int
+\fBTcl_NRPostProc\fR(
+        \fBvoid *\fR \fIdata\fR[],
+        \fBTcl_Interp\fR *\fIinterp\fR,
+        int \fIresult\fR);
+.CE
+.PP
+\fIdata\fR is a pointer to an array containing \fIdata0\fR through \fIdata3\fR.
+\fIresult\fR is the value returned by the previous function implementing part
+the routine.
+.SH EXAMPLE
+.PP
+The following command uses \fBTcl_EvalObjEx\fR, which consumes space on the C
+stack, to evaluate a script:
+.PP
+.CS
+int
+\fITheCmdOldObjProc\fR(
+    void *clientData,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    int result;
+    Tcl_Obj *objPtr;
+
+    \fI... preparation ...\fR
+
+    result = \fBTcl_EvalObjEx\fR(interp, objPtr, 0);
+
+    \fI... postprocessing ...\fR
+
+    return result;
+}
+\fBTcl_CreateObjCommand\fR(interp, "theCommand",
+        \fITheCmdOldObjProc\fR, clientData, TheCmdDeleteProc);
+.CE
+.PP
+To avoid consuming space on the C stack, \fITheCmdOldObjProc\fR is renamed to
+\fITheCmdNRObjProc\fR and the postprocessing step is split into a separate
+function, \fITheCmdPostProc\fR, which is pushed onto the function stack.
+\fITcl_EvalObjEx\fR is replaced with \fITcl_NREvalObj\fR, which uses a
+trampoline instead of consuming space on the C stack.  A new version of
+\fITheCmdOldObjProc\fR is just a a wrapper that uses \fBTcl_NRCallObjProc\fR to
+call \fITheCmdNRObjProc\fR:
+.PP
+.CS
+int
+\fITheCmdOldObjProc\fR(
+    void *clientData,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    return \fBTcl_NRCallObjProc\fR(interp, \fITheCmdNRObjProc\fR,
+            clientData, objc, objv);
+}
+.CE
+.PP
+.CS
+int
+\fITheCmdNRObjProc\fR
+    void *clientData,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    Tcl_Obj *objPtr;
+
+    \fI... preparation ...\fR
+
+    \fBTcl_NRAddCallback\fR(interp, \fITheCmdPostProc\fR,
+            data0, data1, data2, data3);
+    /* \fIdata0 .. data3\fR are up to four one-word items to
+     * pass to the postprocessing procedure */
+
+    return \fBTcl_NREvalObj\fR(interp, objPtr, 0);
+}
+.CE
+.PP
+.CS
+int
+\fITheCmdNRPostProc\fR(
+    void *data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    /* \fIdata[0] .. data[3]\fR are the four words of data
+     * passed to \fBTcl_NRAddCallback\fR */
+
+    \fI... postprocessing ...\fR
+
+    return result;
+}
+.CE
+.PP
+Any function comprising a routine can push other functions, making it possible
+implement looping and sequencing constructs using the function stack.
+.PP
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+The first \fIobjc\fR values in the \fIobjv\fR array passed to the functions
+\fBTcl_NRCallObjProc\fR, \fBTcl_NREvalObjv\fR, and \fBTcl_NRCmdSwap\fR should
+have a reference count of at least 1; they may have additional references
+taken during the execution.
+.PP
+The \fIobjPtr\fR argument to \fBTcl_NREvalObj\fR and \fBTcl_NRExprObj\fR
+should have a reference count of at least 1, and may have additional
+references taken to it during execution.
+.PP
+The \fIresultObj\fR argument to \fBTcl_NRExprObj\fR should be an unshared
+object.
+.PP
+Use \fBTcl_NRAddCallback\fR to schedule any required final decrementing of the
+reference counts of arguments to any of the other functions on this page, as
+with any other post-processing step in the non-recursive execution engine.
+.PP
+The
+.SH "SEE ALSO"
+Tcl_CreateCommand(3), Tcl_CreateObjCommand(3), Tcl_EvalObjEx(3), Tcl_GetCommandFromObj(3), Tcl_ExprObj(3)
+.SH KEYWORDS
+stackless, nonrecursive, execute, command, global, value, result, script
+.SH COPYRIGHT
+Copyright \(co 2008 Kevin B. Kenny.
+Copyright \(co 2018 Nathan Coulter.
diff --git a/doc/Namespace.3 b/doc/Namespace.3
index 4b37c2b..4b74d47 100644
--- a/doc/Namespace.3
+++ b/doc/Namespace.3
@@ -3,10 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-'\" Note that some of these functions do not seem to belong, but they
-'\" were all introduced with the same TIP (#139)
-'\" 
+'\"
 .TH Tcl_Namespace 3 8.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -46,10 +43,11 @@ Tcl_Command
 \fBTcl_FindCommand\fR(\fIinterp, name, contextNsPtr, flags\fR)
 .sp
 Tcl_Obj *
-\fBTcl_GetNamespaceUnknownHandler(\fIinterp, nsPtr\fR)
+\fBTcl_GetNamespaceUnknownHandler\fR(\fIinterp, nsPtr\fR)
 .sp
 int
-\fBTcl_SetNamespaceUnknownHandler(\fIinterp, nsPtr, handlerPtr\fR)
+\fBTcl_SetNamespaceUnknownHandler\fR(\fIinterp, nsPtr, handlerPtr\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_NamespaceDeleteProc allowOverwrite in/out
 .AP Tcl_Interp *interp in/out
@@ -57,7 +55,7 @@ The interpreter in which the namespace exists and where name lookups
 are performed. Also where error result messages are written.
 .AP "const char" *name in
 The name of the namespace or command to be created or accessed.
-.AP ClientData clientData in
+.AP void *clientData in
 A context pointer by the creator of the namespace.  Not interpreted by
 Tcl at all.
 .AP Tcl_NamespaceDeleteProc *deleteProc in
@@ -67,7 +65,7 @@ if no such callback is to be performed.
 The namespace to be manipulated, or NULL (for other than
 \fBTcl_DeleteNamespace\fR) to manipulate the current namespace.
 .AP Tcl_Obj *objPtr out
-A reference to an unshared object to which the function output will be
+A reference to an unshared value to which the function output will be
 written.
 .AP "const char" *pattern in
 The glob-style pattern (see \fBTcl_StringMatch\fR) that describes the
@@ -95,7 +93,6 @@ message should be left in the interpreter if the search fails.)
 A script fragment to be installed as the unknown command handler for the
 namespace, or NULL to reset the handler to its default.
 .BE
-
 .SH DESCRIPTION
 .PP
 Namespaces are hierarchic naming contexts that can contain commands
@@ -115,11 +112,14 @@ the global namespace.)
 .PP
 \fBTcl_CreateNamespace\fR creates a new namespace.  The
 \fIdeleteProc\fR will have the following type signature:
+.PP
 .CS
-typedef void (Tcl_NamespaceDeleteProc) (ClientData clientData);
+typedef void \fBTcl_NamespaceDeleteProc\fR(
+        void *\fIclientData\fR);
 .CE
 .PP
-\fBTcl_DeleteNamespace\fR deletes a namespace.
+\fBTcl_DeleteNamespace\fR deletes a namespace, calling the
+\fIdeleteProc\fR defined for the namespace (if any).
 .PP
 \fBTcl_AppendExportList\fR retrieves the export patterns for a
 namespace given namespace and appends them (as list items) to
@@ -131,7 +131,7 @@ is true.
 .PP
 \fBTcl_Import\fR imports commands matching a pattern into a
 namespace.  Note that the pattern must include the name of the
-namespace to import from.  This function returns an error if
+namespace to import from.  This function returns TCL_ERROR if
 an attempt to import a command over an existing command is made,
 unless the \fIallowOverwrite\fR flag has been set.
 .PP
@@ -157,9 +157,19 @@ for the namespace, or NULL if none is set.
 \fBTcl_SetNamespaceUnknownHandler\fR sets the unknown command handler for
 the namespace. If \fIhandlerPtr\fR is NULL, then the handler is reset to
 its default.
-
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+The \fIobjPtr\fR argument to \fBTcl_AppendExportList\fR should be an
+unshared object, as it will be modified by this function. The
+reference count of \fIobjPtr\fR will not be altered.
+.PP
+\fBTcl_GetNamespaceUnknownHandler\fR returns a possibly shared value.
+Its reference count should be incremented if the value is to be
+retained.
+.PP
+The \fIhandlerPtr\fR argument to \fBTcl_SetNamespaceUnknownHandler\fR
+will have its reference count incremented if it is a non-empty list.
 .SH "SEE ALSO"
-Tcl_CreateCommand, Tcl_ListObjAppendElements, Tcl_SetVar
-
+Tcl_CreateCommand(3), Tcl_ListObjAppendList(3), Tcl_SetVar(3)
 .SH KEYWORDS
 namespace, command
diff --git a/doc/Notifier.3 b/doc/Notifier.3
index 9edf069..6aab2e2 100644
--- a/doc/Notifier.3
+++ b/doc/Notifier.3
@@ -4,53 +4,43 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Notifier 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_CreateEventSource, Tcl_DeleteEventSource, Tcl_SetMaxBlockTime, Tcl_QueueEvent, Tcl_ThreadQueueEvent, Tcl_ThreadAlert, Tcl_GetCurrentThread, Tcl_DeleteEvents, Tcl_InitNotifier, Tcl_FinalizeNotifier, Tcl_WaitForEvent, Tcl_AlertNotifier, Tcl_SetTimer, Tcl_ServiceAll, Tcl_ServiceEvent, Tcl_GetServiceMode, Tcl_SetServiceMode \- the event queue and notifier interfaces
+Tcl_CreateEventSource, Tcl_DeleteEventSource, Tcl_SetMaxBlockTime, Tcl_QueueEvent, Tcl_ThreadQueueEvent, Tcl_ThreadAlert, Tcl_GetCurrentThread, Tcl_DeleteEvents, Tcl_InitNotifier, Tcl_FinalizeNotifier, Tcl_WaitForEvent, Tcl_AlertNotifier, Tcl_SetTimer, Tcl_ServiceAll, Tcl_ServiceEvent, Tcl_GetServiceMode, Tcl_SetServiceMode, Tcl_ServiceModeHook, Tcl_SetNotifier \- the event queue and notifier interfaces
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
 .sp
-void
 \fBTcl_CreateEventSource\fR(\fIsetupProc, checkProc, clientData\fR)
 .sp
-void
 \fBTcl_DeleteEventSource\fR(\fIsetupProc, checkProc, clientData\fR)
 .sp
-void
 \fBTcl_SetMaxBlockTime\fR(\fItimePtr\fR)
 .sp
-void
 \fBTcl_QueueEvent\fR(\fIevPtr, position\fR)
 .sp
-void
 \fBTcl_ThreadQueueEvent\fR(\fIthreadId, evPtr, position\fR)
 .sp
-void
 \fBTcl_ThreadAlert\fR(\fIthreadId\fR)
 .sp
 Tcl_ThreadId
 \fBTcl_GetCurrentThread\fR()
 .sp
-void
 \fBTcl_DeleteEvents\fR(\fIdeleteProc, clientData\fR)
 .sp
-ClientData
+void *
 \fBTcl_InitNotifier\fR()
 .sp
-void
 \fBTcl_FinalizeNotifier\fR(\fIclientData\fR)
 .sp
 int
 \fBTcl_WaitForEvent\fR(\fItimePtr\fR)
 .sp
-void
 \fBTcl_AlertNotifier\fR(\fIclientData\fR)
 .sp
-void
 \fBTcl_SetTimer\fR(\fItimePtr\fR)
 .sp
 int
@@ -65,11 +55,10 @@ int
 int
 \fBTcl_SetServiceMode\fR(\fImode\fR)
 .sp
-void
 \fBTcl_ServiceModeHook\fR(\fImode\fR)
 .sp
-void
 \fBTcl_SetNotifier\fR(\fInotifierProcPtr\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_EventDeleteProc *notifierProcPtr
 .AP Tcl_EventSetupProc *setupProc in
@@ -78,10 +67,10 @@ Procedure to invoke to prepare for event wait in \fBTcl_DoOneEvent\fR.
 Procedure for \fBTcl_DoOneEvent\fR to invoke after waiting for
 events.  Checks to see if any events have occurred and, if so,
 queues them.
-.AP ClientData clientData in
+.AP void *clientData in
 Arbitrary one-word value to pass to \fIsetupProc\fR, \fIcheckProc\fR, or
 \fIdeleteProc\fR.
-.AP Tcl_Time *timePtr in
+.AP "const Tcl_Time" *timePtr in
 Indicates the maximum amount of time to wait for an event.  This
 is specified as an interval (how long to wait), not an absolute
 time (when to wakeup).  If the pointer passed to \fBTcl_WaitForEvent\fR
@@ -89,10 +78,11 @@ is NULL, it means there is no maximum wait time:  wait forever if
 necessary.
 .AP Tcl_Event *evPtr in
 An event to add to the event queue.  The storage for the event must
-have been allocated by the caller using \fBTcl_Alloc\fR or \fBckalloc\fR.
-.AP Tcl_QueuePosition position in
+have been allocated by the caller using \fBTcl_Alloc\fR.
+.AP int position in
 Where to add the new event in the queue:  \fBTCL_QUEUE_TAIL\fR,
-\fBTCL_QUEUE_HEAD\fR, or \fBTCL_QUEUE_MARK\fR.
+\fBTCL_QUEUE_HEAD\fR, \fBTCL_QUEUE_MARK\fR, and whether to do
+an alert if the queue is empty: \fBTCL_QUEUE_ALERT_IF_EMPTY\fR.
 .AP Tcl_ThreadId threadId in
 A unique identifier for a thread.
 .AP Tcl_EventDeleteProc *deleteProc in
@@ -103,12 +93,11 @@ passed to \fBTcl_DoOneEvent\fR.
 .AP int mode in
 Indicates whether events should be serviced by \fBTcl_ServiceAll\fR.
 Must be one of \fBTCL_SERVICE_NONE\fR or \fBTCL_SERVICE_ALL\fR.
-.AP Tcl_NotifierProcs* notifierProcPtr in
+.AP const Tcl_NotifierProcs* notifierProcPtr in
 Structure of function pointers describing notifier procedures that are
 to replace the ones installed in the executable.  See
 \fBREPLACING THE NOTIFIER\fR for details.
 .BE
-
 .SH INTRODUCTION
 .PP
 The interfaces described here are used to customize the Tcl event
@@ -133,22 +122,17 @@ higher-level software that they have occurred.  The procedures
 and \fBTcl_SetMaxBlockTime\fR, \fBTcl_QueueEvent\fR, and
 \fBTcl_DeleteEvents\fR are used primarily by event sources.
 .IP [2]
-The event queue: for non-threaded applications,
-there is a single queue for the whole application,
-containing events that have been detected but not yet serviced.  Event
-sources place events onto the queue so that they may be processed in
-order at appropriate times during the event loop. The event queue
-guarantees a fair discipline of event handling, so that no event
-source can starve the others.  It also allows events to be saved for
-servicing at a future time.  Threaded applications work in a
-similar manner, except that there is a separate event queue for
-each thread containing a Tcl interpreter.
+The event queue: there is a single queue for each thread containing
+a Tcl interpreter, containing events that have been detected but not
+yet serviced.  Event sources place events onto the queue so that they
+may be processed in order at appropriate times during the event loop.
+The event queue guarantees a fair discipline of event handling, so that
+no event source can starve the others.  It also allows events to be
+saved for servicing at a future time.
 \fBTcl_QueueEvent\fR is used (primarily
-by event sources) to add events to the event queue and 
+by event sources) to add events to the current thread's event queue and
 \fBTcl_DeleteEvents\fR is used to remove events from the queue without
-processing them.  In a threaded application, \fBTcl_QueueEvent\fR adds
-an event to the current thread's queue, and \fBTcl_ThreadQueueEvent\fR
-adds an event to a queue in a specific thread.
+processing them.
 .IP [3]
 The event loop: in order to detect and process events, the application
 enters a loop that waits for events to occur, places them on the event
@@ -215,7 +199,6 @@ return.
 .IP [7]
 Either return 0 to indicate that no events were ready, or go back to
 step [2] if blocking was requested by the caller.
-
 .SH "CREATING A NEW EVENT SOURCE"
 .PP
 An event source consists of three procedures invoked by the notifier,
@@ -229,11 +212,13 @@ The procedure \fBTcl_CreateEventSource\fR creates a new event source.
 Its arguments specify the setup procedure and check procedure for
 the event source.
 \fISetupProc\fR should match the following prototype:
+.PP
 .CS
-typedef void Tcl_EventSetupProc(
-        ClientData \fIclientData\fR,
+typedef void \fBTcl_EventSetupProc\fR(
+        void *\fIclientData\fR,
         int \fIflags\fR);
 .CE
+.PP
 The \fIclientData\fR argument will be the same as the \fIclientData\fR
 argument to \fBTcl_CreateEventSource\fR;  it is typically used to
 point to private information managed by the event source.
@@ -268,12 +253,14 @@ connection.
 The \fItimePtr\fR argument to \fBTcl_WaitForEvent\fR points to
 a structure that describes a time interval in seconds and
 microseconds:
+.PP
 .CS
-typedef struct Tcl_Time {
-        long \fIsec\fR;
-        long \fIusec\fR;
-} Tcl_Time;
+typedef struct {
+    long long \fIsec\fR;
+    long \fIusec\fR;
+} \fBTcl_Time\fR;
 .CE
+.PP
 The \fIusec\fR field should be less than 1000000.
 .PP
 Information provided to \fBTcl_SetMaxBlockTime\fR
@@ -303,11 +290,13 @@ The second procedure provided by each event source is its check
 procedure, indicated by the \fIcheckProc\fR argument to
 \fBTcl_CreateEventSource\fR.  \fICheckProc\fR must match the
 following prototype:
+.PP
 .CS
-typedef void Tcl_EventCheckProc(
-        ClientData \fIclientData\fR,
+typedef void \fBTcl_EventCheckProc\fR(
+        void *\fIclientData\fR,
         int \fIflags\fR);
 .CE
+.PP
 The arguments to this procedure are the same as those for \fIsetupProc\fR.
 \fBCheckProc\fR is invoked by \fBTcl_DoOneEvent\fR after it has waited
 for events.  Presumably at least one event source is now prepared to
@@ -326,12 +315,14 @@ to that event source.  However, the first element of the structure
 must be a structure of type \fBTcl_Event\fR, and the address of this
 structure is used when communicating between the event source and the
 rest of the notifier.  A \fBTcl_Event\fR has the following definition:
+.PP
 .CS
-typedef struct {
+typedef struct Tcl_Event {
     Tcl_EventProc *\fIproc\fR;
     struct Tcl_Event *\fInextPtr\fR;
-} Tcl_Event;
+} \fBTcl_Event\fR;
 .CE
+.PP
 The event source must fill in the \fIproc\fR field of
 the event before calling \fBTcl_QueueEvent\fR.
 The \fInextPtr\fR is used to link together the events in the queue
@@ -339,14 +330,14 @@ and should not be modified by the event source.
 .PP
 An event may be added to the queue at any of three positions, depending
 on the \fIposition\fR argument to \fBTcl_QueueEvent\fR:
-.IP \fBTCL_QUEUE_TAIL\fR 24
+.IP \fBTCL_QUEUE_TAIL\fR 32
 Add the event at the back of the queue, so that all other pending
 events will be serviced first.  This is almost always the right
 place for new events.
-.IP \fBTCL_QUEUE_HEAD\fR 24
+.IP \fBTCL_QUEUE_HEAD\fR 32
 Add the event at the front of the queue, so that it will be serviced
 before all other queued events.
-.IP \fBTCL_QUEUE_MARK\fR 24
+.IP \fBTCL_QUEUE_MARK\fR 32
 Add the event at the front of the queue, unless there are other
 events at the front whose position is \fBTCL_QUEUE_MARK\fR;  if so,
 add the new event just after all other \fBTCL_QUEUE_MARK\fR events.
@@ -354,16 +345,22 @@ This value of \fIposition\fR is used to insert an ordered sequence of
 events at the front of the queue, such as a series of
 Enter and Leave events synthesized during a grab or ungrab operation
 in Tk.
+.IP \fBTCL_QUEUE_ALERT_IF_EMPTY\fR 32
+When used in \fBTcl_ThreadQueueEvent\fR
+arranges for an automatic call of \fBTcl_ThreadAlert\fR when the queue was
+empty.
 .PP
 When it is time to handle an event from the queue (steps 1 and 4
 above) \fBTcl_ServiceEvent\fR will invoke the \fIproc\fR specified
 in the first queued \fBTcl_Event\fR structure.
 \fIProc\fR must match the following prototype:
+.PP
 .CS
-typedef int Tcl_EventProc(
+typedef int \fBTcl_EventProc\fR(
         Tcl_Event *\fIevPtr\fR,
         int \fIflags\fR);
 .CE
+.PP
 The first argument to \fIproc\fR is a pointer to the event, which will
 be the same as the first argument to the \fBTcl_QueueEvent\fR call that
 added the event to the queue.
@@ -391,19 +388,15 @@ of window events.
 When \fIproc\fR returns 1, \fBTcl_ServiceEvent\fR will remove the
 event from the event queue and free its storage.
 Note that the storage for an event must be allocated by
-the event source (using \fBTcl_Alloc\fR or the Tcl macro \fBckalloc\fR)
+the event source (using \fBTcl_Alloc\fR)
 before calling \fBTcl_QueueEvent\fR, but it
 will be freed by \fBTcl_ServiceEvent\fR, not by the event source.
 .PP
-Threaded applications work in a
-similar manner, except that there is a separate event queue for
-each thread containing a Tcl interpreter.
-Calling \fBTcl_QueueEvent\fR in a multithreaded application adds
-an event to the current thread's queue.
+Calling \fBTcl_QueueEvent\fR adds an event to the current thread's queue.
 To add an event to another thread's queue, use \fBTcl_ThreadQueueEvent\fR.
 \fBTcl_ThreadQueueEvent\fR accepts as an argument a Tcl_ThreadId argument,
 which uniquely identifies a thread in a Tcl application.  To obtain the
-Tcl_ThreadID for the current thread, use the \fBTcl_GetCurrentThread\fR
+Tcl_ThreadId for the current thread, use the \fBTcl_GetCurrentThread\fR
 procedure.  (A thread would then need to pass this identifier to other
 threads for those threads to be able to add events to its queue.)
 After adding an event to another thread's queue, you then typically
@@ -416,11 +409,13 @@ events from the event queue.  \fBTcl_DeleteEvents\fR calls \fIproc\fR
 for each event in the queue, deleting those for with the procedure
 returns 1.  Events for which the procedure returns 0 are left in the
 queue.  \fIProc\fR should match the following prototype:
+.PP
 .CS
-typedef int Tcl_EventDeleteProc(
+typedef int \fBTcl_EventDeleteProc\fR(
         Tcl_Event *\fIevPtr\fR,
-        ClientData \fIclientData\fR);
+        void *\fIclientData\fR);
 .CE
+.PP
 The \fIclientData\fR argument will be the same as the \fIclientData\fR
 argument to \fBTcl_DeleteEvents\fR; it is typically used to point to
 private information managed by the event source.  The \fIevPtr\fR will
@@ -430,7 +425,6 @@ point to the next event in the queue.
 \fIcheckProc\fR, and \fIclientData\fR arguments must exactly match those
 provided to the \fBTcl_CreateEventSource\fR for the event source to be deleted.
 If no such source exists, \fBTcl_DeleteEventSource\fR has no effect.
-
 .SH "CREATING A NEW NOTIFIER"
 .PP
 The notifier consists of all the procedures described in this manual
@@ -489,8 +483,7 @@ under Unix it happens when \fBTcl_WaitForEvent\fR would have waited
 forever because there were no active event sources and the timeout was
 infinite.
 .PP
-\fBTcl_AlertNotifier\fR is used in multithreaded applications to allow
-any thread to
+\fBTcl_AlertNotifier\fR is used to allow any thread to
 .QW "wake up"
 the notifier to alert it to new events on its
 queue.  \fBTcl_AlertNotifier\fR requires as an argument the notifier
@@ -526,7 +519,6 @@ in their respective manual pages.
 The easiest way to create a new notifier is to look at the code
 for an existing notifier, such as the files \fBunix/tclUnixNotfy.c\fR
 or \fBwin/tclWinNotify.c\fR in the Tcl source distribution.
-
 .SH "REPLACING THE NOTIFIER"
 .PP
 A notifier that has been written according to the conventions above
@@ -539,18 +531,20 @@ to another program, such as a Web browser plugin.
 To do this, the extension makes a call to \fBTcl_SetNotifier\fR
 passing a pointer to a \fBTcl_NotifierProcs\fR data structure.  The
 structure has the following layout:
+.PP
 .CS
-typedef struct Tcl_NotifierProcs {
-    Tcl_SetTimerProc *setTimerProc;
-    Tcl_WaitForEventProc *waitForEventProc;
-    Tcl_CreateFileHandlerProc *createFileHandlerProc;
-    Tcl_DeleteFileHandlerProc *deleteFileHandlerProc;
-    Tcl_InitNotifierProc *initNotifierProc;
-    Tcl_FinalizeNotifierProc *finalizeNotifierProc;
-    Tcl_AlertNotifierProc *alertNotifierProc;
-    Tcl_ServiceModeHookProc *serviceModeHookProc;
-} Tcl_NotifierProcs;
+typedef struct {
+    Tcl_SetTimerProc *\fIsetTimerProc\fR;
+    Tcl_WaitForEventProc *\fIwaitForEventProc\fR;
+    Tcl_CreateFileHandlerProc *\fIcreateFileHandlerProc\fR;
+    Tcl_DeleteFileHandlerProc *\fIdeleteFileHandlerProc\fR;
+    Tcl_InitNotifierProc *\fIinitNotifierProc\fR;
+    Tcl_FinalizeNotifierProc *\fIfinalizeNotifierProc\fR;
+    Tcl_AlertNotifierProc *\fIalertNotifierProc\fR;
+    Tcl_ServiceModeHookProc *\fIserviceModeHookProc\fR;
+} \fBTcl_NotifierProcs\fR;
 .CE
+.PP
 Following the call to \fBTcl_SetNotifier\fR, the pointers given in
 the \fBTcl_NotifierProcs\fR structure replace whatever notifier had
 been installed in the process.
@@ -558,7 +552,6 @@ been installed in the process.
 It is extraordinarily unwise to replace a running notifier. Normally,
 \fBTcl_SetNotifier\fR should be called at process initialization time
 before the first call to \fBTcl_InitNotifier\fR.
-
 .SH "EXTERNAL EVENT LOOPS"
 .PP
 The notifier interfaces are designed so that Tcl can be embedded into
@@ -619,9 +612,9 @@ then calls to \fBTcl_ServiceAll\fR will behave normally.
 mode, which should be restored when the recursive loop exits.
 \fBTcl_GetServiceMode\fR returns the current value of the service
 mode.
-
 .SH "SEE ALSO"
-\fBTcl_CreateFileHandler\fR, \fBTcl_DeleteFileHandler\fR, \fBTcl_Sleep\fR,
-\fBTcl_DoOneEvent\fR, \fBThread(3)\fR
+Tcl_CreateFileHandler(3), Tcl_DeleteFileHandler(3), Tcl_Sleep(3),
+Tcl_DoOneEvent(3), Thread(3)
 .SH KEYWORDS
-event, notifier, event queue, event sources, file events, timer, idle, service mode, threads
+event, notifier, event queue, event sources, file events, timer, idle,
+service mode, threads
diff --git a/doc/Number.3 b/doc/Number.3
new file mode 100644
index 0000000..e44cbea
--- /dev/null
+++ b/doc/Number.3
@@ -0,0 +1,124 @@
+'\"
+'\" Contribution from Don Porter, NIST, 2022. (not subject to US copyright)
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH Tcl_GetNumber 3 9.0 Tcl "Tcl Library Procedures"
+.so man.macros
+.BS
+.SH NAME
+Tcl_GetNumber, Tcl_GetNumberFromObj \- get numeric value from Tcl value
+.SH SYNOPSIS
+.nf
+\fB#include <tcl.h>\fR
+.sp
+\fB#include <tclTomMath.h>\fR
+.sp
+int
+\fBTcl_GetNumber\fR(\fIinterp, bytes, numBytes, clientDataPtr, typePtr\fR)
+.sp
+int
+\fBTcl_GetNumberFromObj\fR(\fIinterp, objPtr, clientDataPtr, typePtr\fR)
+.fi
+.SH ARGUMENTS
+.AS Tcl_Interp clientDataPtr out
+.AP Tcl_Interp *interp out
+When non-NULL, error information is recorded here when the value is not
+in any of the numeric formats recognized by Tcl.
+.AP "const char" *bytes in
+Points to first byte of the string value to be examined.
+.AP Tcl_Size numBytes in
+The number of bytes, starting at \fIbytes\fR, that should be examined.
+If \fBnumBytes\fR is negative, then all bytes should
+be examined until the first \fBNUL\fR byte terminates examination.
+.AP "void *" *clientDataPtr out
+Points to space where a pointer value may be written through which a numeric
+value is available to read.
+.AP int *typePtr out
+Points to space where a value may be written reporting what type of
+numeric storage is available to read.
+.AP Tcl_Obj *objPtr in
+A Tcl value to be examined.
+.BE
+.SH DESCRIPTION
+.PP
+These procedures enable callers to retrieve a numeric value from a
+Tcl value in a numeric format recognized by Tcl.
+.PP
+Tcl recognizes many values as numbers.  Several examples include:
+\fB"0"\fR, \fB" +1"\fR, \fB"-2 "\fR, \fB" 3 "\fR, \fB"0xdad1"\fR, \fB"0d09"\fR,
+\fB"1_000_000"\fR, \fB"4.0"\fR, \fB"1e-7"\fR, \fB"NaN"\fR, or \fB"Inf"\fR.
+When built-in Tcl commands act on these values as numbers, they are converted
+to a numeric representation for efficient handling in C code.  Tcl makes
+use of three C types to store these representations: \fBdouble\fR,
+\fBTcl_WideInt\fR, and \fBmp_int\fR.  The \fBdouble\fR type is provided by the
+C language standard.  The \fBTcl_WideInt\fR type is declared in the Tcl
+header file, \fBtcl.h\fR, and is equivalent to the C standard type
+\fBlong long\fR on most platforms. The \fBmp_int\fR type is declared in the
+header file \fBtclTomMath.h\fR, and implemented by the LibTomMath
+multiple-precision integer library, included with Tcl.
+.PP
+The routines \fBTcl_GetNumber\fR and \fBTcl_GetNumberFromObj\fR perform
+the same function.  They differ only in how the arguments present the Tcl
+value to be examined.  \fBTcl_GetNumber\fR accepts a counted string
+value in the arguments \fIbytes\fR and \fInumBytes\fR (or a
+\fBNUL\fR-terminated string value when \fInumBytes\fR is
+negative).  \fBTcl_GetNumberFromObj\fR accepts the Tcl value
+in \fIobjPtr\fR.
+.PP
+Both routines examine the Tcl value and determine whether Tcl recognizes
+it as a number.  If not, both routines return \fBTCL_ERROR\fR and (when
+\fIinterp\fR is not NULL) record an error message and error code
+in \fIinterp\fR.
+.PP
+If Tcl does recognize the examined value as a number, both routines return
+\fBTCL_OK\fR, and use the pointer arguments \fIclientDataPtr\fR
+and \fItypePtr\fR (which may not be NULL) to report information the
+caller can use to retrieve the numeric representation.  Both routines
+write to *\fIclientDataPtr\fR a pointer to the internal storage location
+where Tcl holds the converted numeric value.
+.PP
+When the converted numeric value is stored as a \fBdouble\fR,
+a call to math library routine \fBisnan\fR determines whether that
+value is not a number (NaN).  If so, both \fBTcl_GetNumber\fR and
+\fBTcl_GetNumberFromObj\fR write the value \fBTCL_NUMBER_NAN\fR
+to *\fItypePtr\fR. If not, both routines write the value
+\fBTCL_NUMBER_DOUBLE\fR to *\fItypePtr\fR.  These routines report
+different type values in these cases because \fBTcl_GetDoubleFromObj\fR
+raises an error on NaN values.  For both reported type values,
+the storage pointer may be cast to type \fBconst double *\fR and
+the \fBdouble\fR numeric value may be read through it.
+.PP
+When the converted numeric value is stored as a \fBTcl_WideInt\fR,
+both \fBTcl_GetNumber\fR and \fBTcl_GetNumberFromObj\fR write the
+value \fBTCL_NUMBER_INT\fR to *\fItypePtr\fR.
+The storage pointer may be cast to type \fBconst Tcl_WideInt *\fR and
+the \fBTcl_WideInt\fR numeric value may be read through it.
+.PP
+When the converted numeric value is stored as an \fBmp_int\fR,
+both \fBTcl_GetNumber\fR and \fBTcl_GetNumberFromObj\fR write the
+value \fBTCL_NUMBER_BIG\fR to *\fItypePtr\fR.
+The storage pointer may be cast to type \fBconst mp_int *\fR and
+the \fBmp_int\fR numeric value may be read through it.
+.PP
+Future releases of Tcl might expand or revise the recognition of
+values as numbers.  If additional storage representations are
+adopted, these routines will add new values to be written to
+*\fItypePtr\fR to identify them.  Callers should consider how
+they should react to unknown values written to *\fItypePtr\fR.
+.PP
+When callers of these routines read numeric values through the
+reported storage pointer, they are accessing memory that belongs
+to the Tcl library.  The Tcl library has the power to overwrite
+or free this memory.  The storage pointer reported by a call to
+\fBTcl_GetNumber\fR or \fBTcl_GetNumberFromObj\fR should not be
+used after the same thread has possibly returned control to the
+Tcl library.  If longer term access to the numeric value is needed,
+it should be copied into memory controlled by the caller.  Callers
+must not attempt to write through or free the storage pointer.
+.SH "SEE ALSO"
+Tcl_GetDouble, Tcl_GetDoubleFromObj, Tcl_GetWideIntFromObj
+.SH KEYWORDS
+double, double value, double type, integer, integer value, integer type,
+internal representation, value, value type, string representation
diff --git a/doc/OOInitStubs.3 b/doc/OOInitStubs.3
new file mode 100644
index 0000000..bc42453
--- /dev/null
+++ b/doc/OOInitStubs.3
@@ -0,0 +1,54 @@
+'\"
+'\" Copyright (c) 2012 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH Tcl_OOInitStubs 3 1.0 TclOO "TclOO Library Functions"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+Tcl_OOInitStubs \- initialize library access to TclOO functionality
+.SH SYNOPSIS
+.nf
+\fB#include <tclOO.h>\fR
+.sp
+const char *
+\fBTcl_OOInitStubs\fR(\fIinterp\fR)
+.fi
+.SH ARGUMENTS
+.AS Tcl_Interp *interp in
+.AP Tcl_Interp *interp in
+The Tcl interpreter that the TclOO API is integrated with and whose C
+interface is going to be used.
+.BE
+.SH DESCRIPTION
+.PP
+When an extension library is going to use the C interface exposed by TclOO, it
+should use \fBTcl_OOInitStubs\fR to initialize its access to that interface
+from within its \fI*\fB_Init\fR (or \fI*\fB_SafeInit\fR) function, passing in
+the \fIinterp\fR that was passed into that routine as context. If the result
+of calling \fBTcl_OOInitStubs\fR is NULL, the initialization failed and an
+error message will have been left in the interpreter's result. Otherwise, the
+initialization succeeded and the TclOO API may thereafter be used; the
+version of the TclOO API is returned.
+.PP
+When using this function, either the C #define symbol \fBUSE_TCLOO_STUBS\fR
+should be defined and your library code linked against the Tcl stub library,
+or that #define symbol should \fInot\fR be defined and your library code
+linked against the Tcl main library directly.
+.SH "BACKWARD COMPATIBILITY NOTE"
+.PP
+If you are linking against the Tcl 8.5 forward compatibility package for
+TclOO, \fIonly\fR the stub-enabled configuration is supported and you should
+also link against the TclOO independent stub library; that library is an
+integrated part of the main Tcl stub library in Tcl 8.6.
+.SH KEYWORDS
+stubs
+.SH "SEE ALSO"
+Tcl_InitStubs(3)
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/Object.3 b/doc/Object.3
index a7e06c8..0dedbf9 100644
--- a/doc/Object.3
+++ b/doc/Object.3
@@ -8,7 +8,7 @@
 .so man.macros
 .BS
 .SH NAME
-Tcl_NewObj, Tcl_DuplicateObj, Tcl_IncrRefCount, Tcl_DecrRefCount, Tcl_IsShared, Tcl_InvalidateStringRep \- manipulate Tcl objects
+Tcl_NewObj, Tcl_DuplicateObj, Tcl_IncrRefCount, Tcl_DecrRefCount, Tcl_BounceRefCount, Tcl_IsShared, Tcl_InvalidateStringRep \- manipulate Tcl values
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -23,43 +23,46 @@ Tcl_Obj *
 .sp
 \fBTcl_DecrRefCount\fR(\fIobjPtr\fR)
 .sp
+\fBTcl_BounceRefCount\fR(\fIobjPtr\fR)
+.sp
 int
 \fBTcl_IsShared\fR(\fIobjPtr\fR)
 .sp
-\fBTcl_InvalidateStringRep\fR(\fIobjPtr\fR)
+\fBTcl_InvalidateStringRep\fR(\fIobjPtr\fR)3
+.fi
 .SH ARGUMENTS
 .AS Tcl_Obj *objPtr
 .AP Tcl_Obj *objPtr in
-Points to an object;
+Points to a value;
 must have been the result of a previous call to \fBTcl_NewObj\fR.
 .BE
-
 .SH INTRODUCTION
 .PP
-This man page presents an overview of Tcl objects and how they are used.
-It also describes generic procedures for managing Tcl objects.
-These procedures are used to create and copy objects,
-and increment and decrement the count of references (pointers) to objects.
+This man page presents an overview of Tcl values (called \fBTcl_Obj\fRs for
+historical reasons) and how they are used.
+It also describes generic procedures for managing Tcl values.
+These procedures are used to create and copy values,
+and increment and decrement the count of references (pointers) to values.
 The procedures are used in conjunction with ones
-that operate on specific types of objects such as
+that operate on specific types of values such as
 \fBTcl_GetIntFromObj\fR and \fBTcl_ListObjAppendElement\fR.
 The individual procedures are described along with the data structures
 they manipulate.
 .PP
-Tcl's \fIdual-ported\fR objects provide a general-purpose mechanism
+Tcl's \fIdual-ported\fR values provide a general-purpose mechanism
 for storing and exchanging Tcl values.
 They largely replace the use of strings in Tcl.
 For example, they are used to store variable values,
 command arguments, command results, and scripts.
-Tcl objects behave like strings but also hold an internal representation
+Tcl values behave like strings but also hold an internal representation
 that can be manipulated more efficiently.
-For example, a Tcl list is now represented as an object
+For example, a Tcl list is now represented as a value
 that holds the list's string representation
-as well as an array of pointers to the objects for each list element.
-Dual-ported objects avoid most runtime type conversions.
+as well as an array of pointers to the values for each list element.
+Dual-ported values avoid most runtime type conversions.
 They also improve the speed of many operations
 since an appropriate representation is immediately available.
-The compiler itself uses Tcl objects to
+The compiler itself uses Tcl values to
 cache the instruction bytecodes resulting from compiling scripts.
 .PP
 The two representations are a cache of each other and are computed lazily.
@@ -74,64 +77,70 @@ between integers and strings.
 Only when it needs a string representing the variable's value,
 say to print it,
 will the program regenerate the string representation from the integer.
-Although objects contain an internal representation,
+Although values contain an internal representation,
 their semantics are defined in terms of strings:
 an up-to-date string can always be obtained,
-and any change to the object will be reflected in that string
-when the object's string representation is fetched.
+and any change to the value will be reflected in that string
+when the value's string representation is fetched.
 Because of this representation invalidation and regeneration,
 it is dangerous for extension writers to access
 \fBTcl_Obj\fR fields directly.
 It is better to access Tcl_Obj information using
 procedures like \fBTcl_GetStringFromObj\fR and \fBTcl_GetString\fR.
 .PP
-Objects are allocated on the heap
+Values are allocated on the heap
 and are referenced using a pointer to their \fBTcl_Obj\fR structure.
-Objects are shared as much as possible.
+Values are shared as much as possible.
 This significantly reduces storage requirements
-because some objects such as long lists are very large.
+because some values such as long lists are very large.
 Also, most Tcl values are only read and never modified.
 This is especially true for procedure arguments,
 which can be shared between the caller and the called procedure.
 Assignment and argument binding is done by
 simply assigning a pointer to the value.
 Reference counting is used to determine when it is safe to
-reclaim an object's storage.
+reclaim a value's storage.
 .PP
-Tcl objects are typed.
-An object's internal representation is controlled by its type.
+Tcl values are typed.
+A value's internal representation is controlled by its type.
 Several types are predefined in the Tcl core
 including integer, double, list, and bytecode.
 Extension writers can extend the set of types
 by defining their own \fBTcl_ObjType\fR structs.
 .SH "THE TCL_OBJ STRUCTURE"
 .PP
-Each Tcl object is represented by a \fBTcl_Obj\fR structure
+Each Tcl value is represented by a \fBTcl_Obj\fR structure
 which is defined as follows.
+.PP
 .CS
-typedef struct Tcl_Obj {
-        int \fIrefCount\fR;
-        char *\fIbytes\fR;
-        int \fIlength\fR;
-        Tcl_ObjType *\fItypePtr\fR;
-        union {
-                long \fIlongValue\fR;
-                double \fIdoubleValue\fR;
-                void *\fIotherValuePtr\fR;
-                Tcl_WideInt \fIwideValue\fR;
-                struct {
-                        void *\fIptr1\fR;
-                        void *\fIptr2\fR;
-                } \fItwoPtrValue\fR;
-                struct {
-                        void *\fIptr\fR;
-                        unsigned long \fIvalue\fR;
-                } \fIptrAndLongRep\fR;
-        } \fIinternalRep\fR;
-} Tcl_Obj;
+typedef struct {
+    Tcl_Size \fIrefCount\fR;
+    char *\fIbytes\fR;
+    Tcl_Size \fIlength\fR;
+    const Tcl_ObjType *\fItypePtr\fR;
+    union {
+        long \fIlongValue\fR;
+        double \fIdoubleValue\fR;
+        void *\fIotherValuePtr\fR;
+        Tcl_WideInt \fIwideValue\fR;
+        struct {
+            void *\fIptr1\fR;
+            void *\fIptr2\fR;
+        } \fItwoPtrValue\fR;
+        struct {
+            void *\fIptr\fR;
+            unsigned long \fIvalue\fR;
+        } \fIptrAndLongRep\fR;
+        struct {
+            void *\fIptr\fR;
+            Tcl_Size \fIsize\fR;
+        } \fIptrAndSize\fR;
+    } \fIinternalRep\fR;
+} \fBTcl_Obj\fR;
 .CE
+.PP
 The \fIbytes\fR and the \fIlength\fR members together hold
-an object's UTF-8 string representation,
+a value's UTF-8 string representation,
 which is a \fIcounted string\fR not containing null bytes (UTF-8 null
 characters should be encoded as a two byte sequence: 192, 128.)
 \fIbytes\fR points to the first byte of the string representation.
@@ -141,31 +150,32 @@ at offset \fIlength\fR;
 this allows string representations
 to be treated as conventional null-terminated C strings.
 C programs use \fBTcl_GetStringFromObj\fR and \fBTcl_GetString\fR to get
-an object's string representation.
+a value's string representation.
 If \fIbytes\fR is NULL,
 the string representation is invalid.
 .PP
-An object's type manages its internal representation.
+A value's type manages its internal representation.
 The member \fItypePtr\fR points to the Tcl_ObjType structure
 that describes the type.
 If \fItypePtr\fR is NULL,
 the internal representation is invalid.
 .PP
 The \fIinternalRep\fR union member holds
-an object's internal representation.
+a value's internal representation.
 This is either a (long) integer, a double-precision floating-point number,
 a pointer to a value containing additional information
-needed by the object's type to represent the object, a Tcl_WideInt
-integer, two arbitrary pointers, or a pair made up of an unsigned long
-integer and a pointer.
+needed by the value's type to represent the value, a \fBTcl_WideInt\fR
+integer, two arbitrary pointers, a pair made up of a pointer and an unsigned long
+integer, or a pair made up of a pointer and \fBTcl_Size\fR which is a signed integer
+type capable of holding the maximum lengths permitted in Tcl.
 .PP
 The \fIrefCount\fR member is used to tell when it is safe to free
-an object's storage.
-It holds the count of active references to the object.
+a value's storage.
+It holds the count of active references to the value.
 Maintaining the correct reference count is a key responsibility
 of extension writers.
 Reference counting is discussed below
-in the section \fBSTORAGE MANAGEMENT OF OBJECTS\fR.
+in the section \fBSTORAGE MANAGEMENT OF VALUES\fR.
 .PP
 Although extension writers can directly access
 the members of a Tcl_Obj structure,
@@ -175,21 +185,21 @@ read or update \fIrefCount\fR directly;
 they should use macros such as
 \fBTcl_IncrRefCount\fR and \fBTcl_IsShared\fR instead.
 .PP
-A key property of Tcl objects is that they hold two representations.
-An object typically starts out containing only a string representation:
+A key property of Tcl values is that they hold two representations.
+A value typically starts out containing only a string representation:
 it is untyped and has a NULL \fItypePtr\fR.
-An object containing an empty string or a copy of a specified string
+A value containing an empty string or a copy of a specified string
 is created using \fBTcl_NewObj\fR or \fBTcl_NewStringObj\fR respectively.
-An object's string value is gotten with
+A value's string value is gotten with
 \fBTcl_GetStringFromObj\fR or \fBTcl_GetString\fR
 and changed with \fBTcl_SetStringObj\fR.
-If the object is later passed to a procedure like \fBTcl_GetIntFromObj\fR
+If the value is later passed to a procedure like \fBTcl_GetIntFromObj\fR
 that requires a specific internal representation,
-the procedure will create one and set the object's \fItypePtr\fR.
+the procedure will create one and set the value's \fItypePtr\fR.
 The internal representation is computed from the string representation.
-An object's two representations are duals of each other:
+A value's two representations are duals of each other:
 changes made to one are reflected in the other.
-For example, \fBTcl_ListObjReplace\fR will modify an object's
+For example, \fBTcl_ListObjReplace\fR will modify a value's
 internal representation and the next call to \fBTcl_GetStringFromObj\fR
 or \fBTcl_GetString\fR will reflect that change.
 .PP
@@ -202,91 +212,106 @@ so that it is only regenerated if it is needed later.
 Most C programmers never have to be concerned with how this is done
 and simply use procedures such as \fBTcl_GetBooleanFromObj\fR or
 \fBTcl_ListObjIndex\fR.
-Programmers that implement their own object types
+Programmers that implement their own value types
 must check for invalid representations
 and mark representations invalid when necessary.
 The procedure \fBTcl_InvalidateStringRep\fR is used
-to mark an object's string representation invalid and to
+to mark a value's string representation invalid and to
 free any storage associated with the old string representation.
 .PP
-Objects usually remain one type over their life,
-but occasionally an object must be converted from one type to another.
-For example, a C program might build up a string in an object
+Values usually remain one type over their life,
+but occasionally a value must be converted from one type to another.
+For example, a C program might build up a string in a value
 with repeated calls to \fBTcl_AppendToObj\fR,
 and then call \fBTcl_ListObjIndex\fR to extract a list element from
-the object.
-The same object holding the same string value
+the value.
+The same value holding the same string value
 can have several different internal representations
 at different times.
-Extension writers can also force an object to be converted from one type
+Extension writers can also force a value to be converted from one type
 to another using the \fBTcl_ConvertToType\fR procedure.
-Only programmers that create new object types need to be concerned
+Only programmers that create new value types need to be concerned
 about how this is done.
-A procedure defined as part of the object type's implementation
-creates a new internal representation for an object
+A procedure defined as part of the value type's implementation
+creates a new internal representation for a value
 and changes its \fItypePtr\fR.
 See the man page for \fBTcl_RegisterObjType\fR
-to see how to create a new object type.
-.SH "EXAMPLE OF THE LIFETIME OF AN OBJECT"
+to see how to create a new value type.
+.SH "EXAMPLE OF THE LIFETIME OF A VALUE"
 .PP
-As an example of the lifetime of an object,
+As an example of the lifetime of a value,
 consider the following sequence of commands:
+.PP
 .CS
 \fBset x 123\fR
 .CE
-This assigns to \fIx\fR an untyped object whose
+.PP
+This assigns to \fIx\fR an untyped value whose
 \fIbytes\fR member points to \fB123\fR and \fIlength\fR member contains 3.
-The object's \fItypePtr\fR member is NULL.
+The value's \fItypePtr\fR member is NULL.
+.PP
 .CS
 \fBputs "x is $x"\fR
 .CE
+.PP
 \fIx\fR's string representation is valid (since \fIbytes\fR is non-NULL)
 and is fetched for the command.
+.PP
 .CS
 \fBincr x\fR
 .CE
-The \fBincr\fR command first gets an integer from \fIx\fR's object
+.PP
+The \fBincr\fR command first gets an integer from \fIx\fR's value
 by calling \fBTcl_GetIntFromObj\fR.
-This procedure checks whether the object is already an integer object.
-Since it is not, it converts the object
-by setting the object's internal representation
+This procedure checks whether the value is already an integer value.
+Since it is not, it converts the value
+by setting the value's internal representation
 to the integer \fB123\fR
-and setting the object's \fItypePtr\fR
+and setting the value's \fItypePtr\fR
 to point to the integer Tcl_ObjType structure.
 Both representations are now valid.
-\fBincr\fR increments the object's integer internal representation
+\fBincr\fR increments the value's integer internal representation
 then invalidates its string representation
 (by calling \fBTcl_InvalidateStringRep\fR)
 since the string representation
 no longer corresponds to the internal representation.
+.PP
 .CS
 \fBputs "x is now $x"\fR
 .CE
-The string representation of \fIx\fR's object is needed
+.PP
+The string representation of \fIx\fR's value is needed
 and is recomputed.
 The string representation is now \fB124\fR
 and both representations are again valid.
-.SH "STORAGE MANAGEMENT OF OBJECTS"
+.SH "STORAGE MANAGEMENT OF VALUES"
 .PP
-Tcl objects are allocated on the heap and are shared as much as possible
-to reduce storage requirements.
-Reference counting is used to determine when an object is
-no longer needed and can safely be freed.
-An object just created by \fBTcl_NewObj\fR or \fBTcl_NewStringObj\fR
-has \fIrefCount\fR 0.
-The macro \fBTcl_IncrRefCount\fR increments the reference count
-when a new reference to the object is created.
-The macro \fBTcl_DecrRefCount\fR decrements the count
-when a reference is no longer needed and,
-if the object's reference count drops to zero, frees its storage.
-An object shared by different code or data structures has
-\fIrefCount\fR greater than 1.
-Incrementing an object's reference count ensures that
-it will not be freed too early or have its value change accidentally.
+Tcl values are allocated on the heap and are shared as much as
+possible to reduce storage requirements.  Reference counting is used
+to determine when a value is no longer needed and can safely be freed.
+A value just created by \fBTcl_NewObj\fR, \fBTcl_NewStringObj\fR, or
+any Abstract List command or function, has \fIrefCount\fR 0, meaning
+that the object can often be given to a function like
+\fBTcl_SetObjResult\fR, \fBTcl_ListObjAppendElement\fR, or
+\fBTcl_DictObjPut\fR (as a value) without explicit reference
+management, all of which are common use cases. (The latter two require
+that the target list or dictionary be well-formed, but that is
+often easy to arrange when the value is being initially constructed.)
+The macro \fBTcl_IncrRefCount\fR increments the reference count when a
+new reference to the value is created.
+The macro \fBTcl_DecrRefCount\fR decrements the count when a reference
+is no longer needed. If the value's reference count drops to zero, frees
+its storage.
+The macro \fBTcl_BounceRefCount\fR will check if the value has no
+references (i.e. in a "new" state) and free the value.
+A value shared by different code or data structures has
+\fIrefCount\fR greater than 1.  Incrementing a value's reference count
+ensures that it will not be freed too early or have its value change
+accidentally.
 .PP
-As an example, the bytecode interpreter shares argument objects
-between calling and called Tcl procedures to avoid having to copy objects.
-It assigns the call's argument objects to the procedure's
+As an example, the bytecode interpreter shares argument values
+between calling and called Tcl procedures to avoid having to copy values.
+It assigns the call's argument values to the procedure's
 formal parameter variables.
 In doing so, it calls \fBTcl_IncrRefCount\fR to increment
 the reference count of each argument since there is now a new
@@ -294,48 +319,67 @@ reference to it from the formal parameter.
 When the called procedure returns,
 the interpreter calls \fBTcl_DecrRefCount\fR to decrement
 each argument's reference count.
-When an object's reference count drops less than or equal to zero,
+When a value's reference count drops less than or equal to zero,
 \fBTcl_DecrRefCount\fR reclaims its storage.
-Most command procedures do not have to be concerned about
-reference counting since they use an object's value immediately
-and do not retain a pointer to the object after they return.
-However, if they do retain a pointer to an object in a data structure,
-they must be careful to increment its reference count
-since the retained pointer is a new reference.
+
+.PP
+Most command procedures have not been concerned about reference
+counting since they use a value immediately and do not retain
+a pointer to the value after they return.  However, there are some
+procedures that may return a new value, with a refCount of 0. In this
+situation, it is the caller's responsibility to free the value before
+the procedure returns.  One way to cover this is to always call
+\fBTcl_IncrRefCount\fR before using the value, then call
+\fBTcl_DecrRefCount\fR before returning. The other way is to use
+\fBTcl_BounceRefCount\fR after the value is no longer needed or
+referenced. This macro will free the value if there are no other
+references to the value. When retaining a pointer to a value in a data
+structure the procedure must be careful to increment its reference
+count since the retained pointer is a new reference. Examples of
+procedures that return new values are \fBTcl_NewIntObj\fR, and
+commands like \fBlseq\fR, which creates an Abstract List, and an
+lindex on this list may return a new Obj with a refCount of 0.
+
 .PP
-Command procedures that directly modify objects
+Command procedures that directly modify values
 such as those for \fBlappend\fR and \fBlinsert\fR must be careful to
-copy a shared object before changing it.
-They must first check whether the object is shared
+copy a shared value before changing it.
+They must first check whether the value is shared
 by calling \fBTcl_IsShared\fR.
-If the object is shared they must copy the object
+If the value is shared they must copy the value
 by using \fBTcl_DuplicateObj\fR;
-this returns a new duplicate of the original object
+this returns a new duplicate of the original value
 that has \fIrefCount\fR 0.
-If the object is not shared,
+If the value is not shared,
 the command procedure
 .QW "owns"
-the object and can safely modify it directly.
+the value and can safely modify it directly.
 For example, the following code appears in the command procedure
 that implements \fBlinsert\fR.
-This procedure modifies the list object passed to it in \fIobjv[1]\fR
+This procedure modifies the list value passed to it in \fIobjv[1]\fR
 by inserting \fIobjc-3\fR new elements before \fIindex\fR.
 .PP
 .CS
 listPtr = objv[1];
-if (Tcl_IsShared(listPtr)) {
-    listPtr = Tcl_DuplicateObj(listPtr);
+if (\fBTcl_IsShared\fR(listPtr)) {
+    listPtr = \fBTcl_DuplicateObj\fR(listPtr);
 }
 result = Tcl_ListObjReplace(interp, listPtr, index, 0,
         (objc-3), &(objv[3]));
 .CE
 .PP
 As another example, \fBincr\fR's command procedure
-must check whether the variable's object is shared before
+must check whether the variable's value is shared before
 incrementing the integer in its internal representation.
-If it is shared, it needs to duplicate the object
+If it is shared, it needs to duplicate the value
 in order to avoid accidentally changing values in other data structures.
+.PP
+In cases where a value is obtained, used, and not retained, the value
+can be freed using \fBTcl_BounceRefCount\fR. This
+is functionally equivalent to calling \fBTcl_IncrRefCount\fR followed
+\fBTcl_DecrRefCount\fR.
 .SH "SEE ALSO"
 Tcl_ConvertToType(3), Tcl_GetIntFromObj(3), Tcl_ListObjAppendElement(3), Tcl_ListObjIndex(3), Tcl_ListObjReplace(3), Tcl_RegisterObjType(3)
 .SH KEYWORDS
-internal representation, object, object creation, object type, reference counting, string representation, type conversion
+internal representation, value, value creation, value type,
+reference counting, string representation, type conversion
diff --git a/doc/ObjectType.3 b/doc/ObjectType.3
index 0a5de3d..ca9e0ce 100644
--- a/doc/ObjectType.3
+++ b/doc/ObjectType.3
@@ -3,19 +3,19 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-.TH Tcl_ObjType 3 8.0 Tcl "Tcl Library Procedures"
+'\"
+.TH Tcl_ObjType 3 9.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_RegisterObjType, Tcl_GetObjType, Tcl_AppendAllObjTypes, Tcl_ConvertToType  \- manipulate Tcl object types
+Tcl_RegisterObjType, Tcl_GetObjType, Tcl_AppendAllObjTypes, Tcl_ConvertToType, Tcl_FreeInternalRep, Tcl_InitStringRep, Tcl_HasStringRep, Tcl_StoreInternalRep, Tcl_FetchInternalRep  \- manipulate Tcl value types
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
 .sp
 \fBTcl_RegisterObjType\fR(\fItypePtr\fR)
 .sp
-Tcl_ObjType *
+const Tcl_ObjType *
 \fBTcl_GetObjType\fR(\fItypeName\fR)
 .sp
 int
@@ -23,34 +23,59 @@ int
 .sp
 int
 \fBTcl_ConvertToType\fR(\fIinterp, objPtr, typePtr\fR)
+.sp
+void
+\fBTcl_FreeInternalRep\fR(\fIobjPtr\fR)
+.sp
+char *
+\fBTcl_InitStringRep\fR(\fIobjPtr, bytes, numBytes\fR)
+.sp
+int
+\fBTcl_HasStringRep\fR(\fIobjPtr\fR)
+.sp
+void
+\fBTcl_StoreInternalRep\fR(\fIobjPtr, typePtr, irPtr\fR)
+.sp
+Tcl_ObjInternalRep *
+\fBTcl_FetchInternalRep\fR(\fIobjPtr, typePtr\fR)
+.fi
 .SH ARGUMENTS
 .AS "const char" *typeName
-.AP Tcl_ObjType *typePtr in
-Points to the structure containing information about the Tcl object type.
+.AP "const Tcl_ObjType" *typePtr in
+Points to the structure containing information about the Tcl value type.
 This storage must live forever,
 typically by being statically allocated.
 .AP "const char" *typeName in
-The name of a Tcl object type that \fBTcl_GetObjType\fR should look up.
+The name of a Tcl value type that \fBTcl_GetObjType\fR should look up.
 .AP Tcl_Interp *interp in
 Interpreter to use for error reporting.
 .AP Tcl_Obj *objPtr in
-For \fBTcl_AppendAllObjTypes\fR, this points to the object onto which
-it appends the name of each object type as a list element.
-For \fBTcl_ConvertToType\fR, this points to an object that
+For \fBTcl_AppendAllObjTypes\fR, this points to the value onto which
+it appends the name of each value type as a list element.
+For \fBTcl_ConvertToType\fR, this points to a value that
 must have been the result of a previous call to \fBTcl_NewObj\fR.
+.AP "const char*" bytes in
+String representation.
+.AP "unsigned int" numBytes in
+Length of the string representation in bytes.
+.AP "const Tcl_ObjInternalRep*" irPtr in
+Internal object representation.
+.AP "const Tcl_ObjType*" typePtr in
+Requested internal representation type.
 .BE
 
 .SH DESCRIPTION
 .PP
-The procedures in this man page manage Tcl object types.
-They are used to register new object types, look up types,
+The procedures in this man page manage Tcl value types (sometimes
+referred to as object types or \fBTcl_ObjType\fRs for historical reasons).
+They are used to register new value types, look up types,
 and force conversions from one type to another.
 .PP
-\fBTcl_RegisterObjType\fR registers a new Tcl object type
-in the table of all object types that \fBTcl_GetObjType\fR
-can look up by name.  There are other object types supported by Tcl
+\fBTcl_RegisterObjType\fR registers a new Tcl value type
+in the table of all value types that \fBTcl_GetObjType\fR
+can look up by name.  There are other value types supported by Tcl
 as well, which Tcl chooses not to register.  Extensions can likewise
-choose to register the object types they create or not.
+choose to register the value types they create or not.
 The argument \fItypePtr\fR points to a Tcl_ObjType structure that
 describes the new type by giving its name
 and by supplying pointers to four procedures
@@ -65,52 +90,97 @@ in the section \fBTHE TCL_OBJTYPE STRUCTURE\fR below.
 with name \fItypeName\fR.
 It returns NULL if no type with that name is registered.
 .PP
-\fBTcl_AppendAllObjTypes\fR appends the name of each registered object type
-as a list element onto the Tcl object referenced by \fIobjPtr\fR.
+\fBTcl_AppendAllObjTypes\fR appends the name of each registered value type
+as a list element onto the Tcl value referenced by \fIobjPtr\fR.
 The return value is \fBTCL_OK\fR unless there was an error
-converting \fIobjPtr\fR to a list object;
+converting \fIobjPtr\fR to a list value;
 in that case \fBTCL_ERROR\fR is returned.
 .PP
-\fBTcl_ConvertToType\fR converts an object from one type to another
+\fBTcl_ConvertToType\fR converts a value from one type to another
 if possible.
 It creates a new internal representation for \fIobjPtr\fR
 appropriate for the target type \fItypePtr\fR
-and sets its \fItypePtr\fR member as determined by calling the 
-\fItypePtr->setFromAnyProc\fR routine.  
+and sets its \fItypePtr\fR member as determined by calling the
+\fItypePtr->setFromAnyProc\fR routine.
 Any internal representation for \fIobjPtr\fR's old type is freed.
 If an error occurs during conversion, it returns \fBTCL_ERROR\fR
-and leaves an error message in the result object for \fIinterp\fR
+and leaves an error message in the result value for \fIinterp\fR
 unless \fIinterp\fR is NULL.
 Otherwise, it returns \fBTCL_OK\fR.
 Passing a NULL \fIinterp\fR allows this procedure to be used
 as a test whether the conversion can be done (and in fact was done).
-.VS 8.5
 .PP
 In many cases, the \fItypePtr->setFromAnyProc\fR routine will
 set \fIobjPtr->typePtr\fR to the argument value \fItypePtr\fR,
 but that is no longer guaranteed.  The \fIsetFromAnyProc\fR is
 free to set the internal representation for \fIobjPtr\fR to make
 use of another related Tcl_ObjType, if it sees fit.
-.VE 8.5
+.PP
+\fBTcl_FreeInternalRep\fR performs the function of the existing internal
+macro \fBTclInitStringRep\fR, but is extended to return a pointer to the
+string rep, and to accept \fINULL\fR as a value for bytes.
+When bytes is \fINULL\fR and \fIobjPtr\fR has no string rep, an uninitialzed
+buffer of \fInumBytes\fR bytes is created for filling by the caller.
+When \fIbytes\fR is \fINULL\fR and \fIobjPtr\fR has a string rep,
+the string rep will be truncated to a length of \fInumBytes\fR bytes.
+When \fInumBytes\fR is greater than zero, and the returned pointer is
+\fINULL\fR, that indicates a failure to allocate memory for the string
+representation.
+The caller may then choose whether to raise an error or panic.
+.PP
+\fBTcl_HasStringRep\fR returns a boolean indicating whether or not a string
+rep is currently stored in \fIobjPtr\fR.
+This is used when the caller wants to act on \fIobjPtr\fR differently
+depending on whether or not it is a pure value.
+Typically this only makes sense in an extension if it is already known that
+\fIobjPtr\fR possesses an internal type that is managed by the extension.
+.PP
+\fBTcl_StoreInternalRep\fR stores in \fIobjPtr\fR a copy of the internal
+representation pointed to by \fIirPtr\fR and sets its type to \fItypePtr\fR.
+When \fIirPtr\fR is \fINULL\fR, this leaves \fIobjPtr\fR without a
+representation for type \fItypePtr\fR.
+.PP
+\fBTcl_FetchInternalRep\fR returns a pointer to the internal representation
+stored in \fIobjPtr\fR that matches the requested type \fItypePtr\fR.
+If no such internal representation is in \fIobjPtr\fR, return \fINULL\fR.
+.PP
+This returns a public type
+.CS
+typedef union Tcl_ObjInternalRep {...} Tcl_ObjInternalRep
+.CE
+where the contents are exactly the existing contents of the union in the
+\fIinternalRep\fR field of the \fITcl_Obj\fR struct.
+This definition permits us to pass internal representations and pointers to
+them as arguments and results in public routines.
 .SH "THE TCL_OBJTYPE STRUCTURE"
 .PP
-Extension writers can define new object types by defining four
-procedures and
-initializing a Tcl_ObjType structure to describe the type.
-Extension writers may also pass a pointer to their Tcl_ObjType
-structure to \fBTcl_RegisterObjType\fR if they wish to permit
-other extensions to look up their Tcl_ObjType by name with
-the \fBTcl_GetObjType\fR routine.
-The \fBTcl_ObjType\fR structure is defined as follows:
+Extension writers can define new value types by defining four to twelve
+procedures and initializing a Tcl_ObjType structure to describe the
+type.  Extension writers may also pass a pointer to their Tcl_ObjType
+structure to \fBTcl_RegisterObjType\fR if they wish to permit other
+extensions to look up their Tcl_ObjType by name with the
+\fBTcl_GetObjType\fR routine.  The \fBTcl_ObjType\fR structure is
+defined as follows:
 .PP
 .CS
-typedef struct Tcl_ObjType {
-    char *\fIname\fR;
+typedef struct {
+    const char *\fIname\fR;
     Tcl_FreeInternalRepProc *\fIfreeIntRepProc\fR;
     Tcl_DupInternalRepProc *\fIdupIntRepProc\fR;
     Tcl_UpdateStringProc *\fIupdateStringProc\fR;
     Tcl_SetFromAnyProc *\fIsetFromAnyProc\fR;
-} Tcl_ObjType;
+    size_t \fIversion\fR;
+    /* List emulation functions - ObjType Version 1 & 2 */
+    Tcl_ObjTypeLengthProc *lengthProc;
+    /* List emulation functions - ObjType Version 2 */
+    Tcl_ObjTypeIndexProc *\fIindexProc\fR;
+    Tcl_ObjTypeSliceProc *\fIsliceProc\fR;
+    Tcl_ObjTypeReverseProc *\fIreverseProc\fR;
+    Tcl_ObjTypeGetElements *\fIgetElementsProc\fR;
+    Tcl_ObjTypeSetElement *\fIsetElementProc\fR;
+    Tcl_ObjTypeReplaceProc *\fIreplaceProc\fR;
+    Tcl_ObjTypeInOperatorProc *\fIinOperProc\fR;
+} \fBTcl_ObjType\fR;
 .CE
 .SS "THE NAME FIELD"
 .PP
@@ -119,21 +189,22 @@ When a type is registered, this is the name used by callers
 of \fBTcl_GetObjType\fR to lookup the type.  For unregistered
 types, the \fIname\fR field is primarily of value for debugging.
 The remaining four members are pointers to procedures
-called by the generic Tcl object code:
+called by the generic Tcl value code:
 .SS "THE SETFROMANYPROC FIELD"
 .PP
 The \fIsetFromAnyProc\fR member contains the address of a function
 called to create a valid internal representation
-from an object's string representation.
+from a value's string representation.
 .PP
 .CS
-typedef int (Tcl_SetFromAnyProc) (Tcl_Interp *\fIinterp\fR,
+typedef int \fBTcl_SetFromAnyProc\fR(
+        Tcl_Interp *\fIinterp\fR,
         Tcl_Obj *\fIobjPtr\fR);
 .CE
 .PP
 If an internal representation cannot be created from the string,
 it returns \fBTCL_ERROR\fR and puts a message
-describing the error in the result object for \fIinterp\fR
+describing the error in the result value for \fIinterp\fR
 unless \fIinterp\fR is NULL.
 If \fIsetFromAnyProc\fR is successful,
 it stores the new internal representation,
@@ -161,30 +232,31 @@ replace it with a new one or reset the \fItypePtr\fR member to NULL.
 The \fIsetFromAnyProc\fR member may be set to NULL, if the routines
 making use of the internal representation have no need to derive that
 internal representation from an arbitrary string value.  However, in
-this case, passing a pointer to the type to Tcl_ConvertToType() will
+this case, passing a pointer to the type to \fBTcl_ConvertToType\fR will
 lead to a panic, so to avoid this possibility, the type
 should \fInot\fR be registered.
 .SS "THE UPDATESTRINGPROC FIELD"
 .PP
 The \fIupdateStringProc\fR member contains the address of a function
 called to create a valid string representation
-from an object's internal representation.
+from a value's internal representation.
 .PP
 .CS
-typedef void (Tcl_UpdateStringProc) (Tcl_Obj *\fIobjPtr\fR);
+typedef void \fBTcl_UpdateStringProc\fR(
+        Tcl_Obj *\fIobjPtr\fR);
 .CE
 .PP
 \fIobjPtr\fR's \fIbytes\fR member is always NULL when it is called.
 It must always set \fIbytes\fR non-NULL before returning.
 We require the string representation's byte array
 to have a null after the last byte, at offset \fIlength\fR,
-and to have no null bytes before that; this allows string representations 
+and to have no null bytes before that; this allows string representations
 to be treated as conventional null character-terminated C strings.
 These restrictions are easily met by using Tcl's internal UTF encoding
 for the string representation, same as one would do for other
 Tcl routines accepting string values as arguments.
-Storage for the byte array must be allocated in the heap by \fBTcl_Alloc\fR
-or \fBckalloc\fR.  Note that \fIupdateStringProc\fRs must allocate
+Storage for the byte array must be allocated in the heap by \fBTcl_Alloc\fR.
+Note that \fIupdateStringProc\fRs must allocate
 enough storage for the string's bytes and the terminating null byte.
 .PP
 The \fIupdateStringProc\fR for Tcl's built-in double type, for example,
@@ -201,10 +273,11 @@ or other similar routines ask for the string representation.
 .SS "THE DUPINTREPPROC FIELD"
 .PP
 The \fIdupIntRepProc\fR member contains the address of a function
-called to copy an internal representation from one object to another.
+called to copy an internal representation from one value to another.
 .PP
 .CS
-typedef void (Tcl_DupInternalRepProc) (Tcl_Obj *\fIsrcPtr\fR,
+typedef void \fBTcl_DupInternalRepProc\fR(
+        Tcl_Obj *\fIsrcPtr\fR,
         Tcl_Obj *\fIdupPtr\fR);
 .CE
 .PP
@@ -212,7 +285,7 @@ typedef void (Tcl_DupInternalRepProc) (Tcl_Obj *\fIsrcPtr\fR,
 internal representation.
 Before the call,
 \fIsrcPtr\fR's internal representation is valid and \fIdupPtr\fR's is not.
-\fIsrcPtr\fR's object type determines what
+\fIsrcPtr\fR's value type determines what
 copying its internal representation means.
 .PP
 For example, the \fIdupIntRepProc\fR for the Tcl integer type
@@ -223,29 +296,182 @@ reasonably can.
 .SS "THE FREEINTREPPROC FIELD"
 .PP
 The \fIfreeIntRepProc\fR member contains the address of a function
-that is called when an object is freed.
+that is called when a value is freed.
 .PP
 .CS
-typedef void (Tcl_FreeInternalRepProc) (Tcl_Obj *\fIobjPtr\fR);
+typedef void \fBTcl_FreeInternalRepProc\fR(
+        Tcl_Obj *\fIobjPtr\fR);
 .CE
 .PP
 The \fIfreeIntRepProc\fR function can deallocate the storage
-for the object's internal representation
-and do other type-specific processing necessary when an object is freed.
+for the value's internal representation
+and do other type-specific processing necessary when a value is freed.
 .PP
 For example, the list type's \fIfreeIntRepProc\fR respects
 the storage sharing scheme established by the \fIdupIntRepProc\fR
-so that it only frees storage when the last object sharing it
+so that it only frees storage when the last value sharing it
 is being freed.
 .PP
 The \fIfreeIntRepProc\fR member can be set to NULL
 to indicate that the internal representation does not require freeing.
 The \fIfreeIntRepProc\fR implementation must not access the
-\fIbytes\fR member of the object, since Tcl makes its own internal
-uses of that field during object deletion.  The defined tasks for
+\fIbytes\fR member of the value, since Tcl makes its own internal
+uses of that field during value deletion.  The defined tasks for
 the \fIfreeIntRepProc\fR have no need to consult the \fIbytes\fR
 member.
+.PP
+Note that if a subsidiary value has its reference count reduced to zero
+during the running of a \fIfreeIntRepProc\fR, that value may be not freed
+immediately, in order to limit stack usage. However, the value will be freed
+before the outermost current \fBTcl_DecrRefCount\fR returns.
+.SS "THE VERSION FIELD"
+.PP
+The \fIversion\fR member provides for future extensibility of the
+structure and should be set to \fBTCL_OBJTYPE_V0\fR for compatibility
+of ObjType definitions prior to version 9.0. Specifics about versions
+will be described further in the sections below.
+.SH "ABSTRACT LIST TYPES"
+.PP
+Additional fields in the Tcl_ObjType descriptor allow for control over
+how custom data values can be manipulated using Tcl's List commands
+without converting the value to a List type. This requires the custom
+type to provide functions that will perform the given operation on the
+custom data representation.  Not all functions are required. In the
+absence of a particular function (set to NULL), the fallback is to
+allow the internal List operation to perform the operation, most
+likely causing the value type to be converted to a traditional list.
+.SS "SCALAR VALUE TYPES"
+.PP
+For a custom value type that is scalar or atomic in nature, i.e., not
+a divisible collection, version \fBTCL_OBJTYPE_V1\fR is
+recommended. In this case, List commands will treat the scalar value
+as if it where a list of length 1, and not convert the value to a List
+type.
+.SS "VERSION 2: ABSTRACT LISTS"
+.PP
+Version 2, \fBTCL_OBJTYPE_V2\fR, allows full List support when the
+functions described below are provided.  This allows for script level
+use of the List commands without causing the type of the Tcl_Obj value
+to be converted to a list.
+.SS "THE LENGTHPROC FIELD"
+.PP
+The \fBLengthProc\fR function correlates with the \fBTcl_ListObjLength\fR
+C API. The function returns the number of elements in the list. It
+is used in every List operation and is required for all Abstract List
+implementations.
+.CS
+typedef Tcl_Size
+(Tcl_ObjTypeLengthProc) (Tcl_Obj *listPtr);
+.CE
+.PP
+.SS "THE INDEXPROC FIELD"
+.PP
+The \fBIndexProc\fR function correlates with with the
+\fBTcl_ListObjIndex\fR C API. The function returns a Tcl_Obj value for
+the element at the specified index.
+.CS
+typedef int (\fBTcl_ObjTypeIndexProc\fR) (
+    Tcl_Interp *interp,
+    Tcl_Obj *listPtr,
+    Tcl_Size index,
+    Tcl_Obj** elemObj);
+.CE
+.SS "THE SLICEPROC FIELD"
+.PP
+The \fBSliceProc\fR correlates with the \fBlrange\fR command,
+returning a new List or Abstract List for the portion of the original
+list specified.
+.CS
+typedef int (\fBTcl_ObjTypeSliceProc\fR) (
+    Tcl_Interp *interp,
+    Tcl_Obj *listPtr,
+    Tcl_Size fromIdx,
+    Tcl_Size toIdx,
+    Tcl_Obj **newObjPtr);
+.CE
+.SS "THE REVERSEPROC FIELD"
+.PP
+The \fBReverseProc\fR correlates with the \fBlreverse\fR command,
+returning a List or Abstract List that has the same elements as the
+input Abstract List, with the elements in the reverse order.
+.CS
+typedef int (\fBTcl_ObjTypeReverseProc\fR) (
+    Tcl_Interp *interp,
+    Tcl_Obj *listPtr,
+    Tcl_Obj **newObjPtr);
+.CE
+.SS "THE GETELEMENTS FIELD"
+.PP
+The \fBGetElements\fR function returns a count and a pointer to an
+array of Tcl_Obj values for the entire Abstract List. This
+correlates to the \fBTcl_ListObjGetElements\fR C API call.
+.CS
+typedef int (\fBTcl_ObjTypeGetElements\fR) (
+    Tcl_Interp *interp,
+    Tcl_Obj *listPtr,
+    Tcl_Size *objcptr,
+    Tcl_Obj ***objvptr);
+.CE
+.SS "THE SETELEMENT FIELD"
+.PP
+The \fBSetElement\fR function replaces the element within the
+specified list at the give index. This function correlates to the
+\fBlset\fR command.
+.CS
+typedef Tcl_Obj *(\fBTcl_ObjTypeSetElement\fR) (
+    Tcl_Interp *interp,
+    Tcl_Obj *listPtr,
+    Tcl_Size indexCount,
+    Tcl_Obj *const indexArray[],
+    Tcl_Obj *valueObj);
+.CE
+.SS "REPLACEPROC FIELD"
+.PP
+The \fBReplaceProc\fR returns a new list after modifying the list
+replacing the elements to be deleted, and adding the elements to be
+inserted. This function correlates to the \fBTcl_ListObjReplace\fR C API.
+.CS
+typedef int (\fBTcl_ObjTypeReplaceProc\fR) (
+    Tcl_Interp *interp,
+    Tcl_Obj *listObj,
+    Tcl_Size first,
+    Tcl_Size numToDelete,
+    Tcl_Size numToInsert,
+    Tcl_Obj *const insertObjs[]);
+.CE
+.SS "THE INOPERPROC FIELD"
+.PP
+The \fBInOperProc\fR function determines whether the value is present in the
+given list, according to equivalent string comparison of elements. The
+\fBboolResult\fR is set to 1 (true) if the value is present, and 0
+(false) if it is not present. This function implements the "in" and
+"ni" math operators for an abstract list.
+.CS
+typedef int (\fBTcl_ObjTypeInOperatorProc\fR) (
+    Tcl_Interp *interp,
+    Tcl_Obj *valueObj,
+    Tcl_Obj *listObj,
+    int *boolResult);
+.CE
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+The \fIobjPtr\fR argument to \fBTcl_AppendAllObjTypes\fR should be an unshared
+value; this function will not modify the reference count of that value, but
+will modify its contents. If \fIobjPtr\fR is not (interpretable as) a list,
+this function will set the interpreter result and produce an error; using an
+unshared empty value is strongly recommended.
+.PP
+The \fIobjPtr\fR argument to \fBTcl_ConvertToType\fR can have any non-zero
+reference count; this function will not modify the reference count, but may
+write to the interpreter result on error so values that originate from there
+should have an additional reference made before calling this.
+.PP
+None of the callback functions in the \fBTcl_ObjType\fR structure should
+modify the reference count of their arguments, but if the values contain
+subsidiary values (e.g., the elements of a list or the keys of a dictionary)
+then those subsidiary values may have their reference counts modified.
 .SH "SEE ALSO"
-Tcl_NewObj, Tcl_DecrRefCount, Tcl_IncrRefCount
+Tcl_NewObj(3), Tcl_DecrRefCount(3), Tcl_IncrRefCount(3), Tcl_BounceRefCount(3)
 .SH KEYWORDS
-internal representation, object, object type, string representation, type conversion
+internal representation, value, value type, string representation,
+type conversion
diff --git a/doc/OpenFileChnl.3 b/doc/OpenFileChnl.3
index 10c92f6..59364e0 100644
--- a/doc/OpenFileChnl.3
+++ b/doc/OpenFileChnl.3
@@ -32,7 +32,6 @@ int
 int
 \fBTcl_GetChannelNamesEx\fR(\fIinterp, pattern\fR)
 .sp
-void
 \fBTcl_RegisterChannel\fR(\fIinterp, channel\fR)
 .sp
 int
@@ -47,34 +46,34 @@ int
 int
 \fBTcl_Close\fR(\fIinterp, channel\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_ReadChars\fR(\fIchannel, readObjPtr, charsToRead, appendFlag\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_Read\fR(\fIchannel, readBuf, bytesToRead\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_GetsObj\fR(\fIchannel, lineObjPtr\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_Gets\fR(\fIchannel, lineRead\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_Ungets\fR(\fIchannel, input, inputLen, addAtEnd\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_WriteObj\fR(\fIchannel, writeObjPtr\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_WriteChars\fR(\fIchannel, charBuf, bytesToWrite\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_Write\fR(\fIchannel, byteBuf, bytesToWrite\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_ReadRaw\fR(\fIchannel, readBuf, bytesToRead\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_WriteRaw\fR(\fIchannel, byteBuf, bytesToWrite\fR)
 .sp
 int
@@ -92,23 +91,21 @@ int
 int
 \fBTcl_OutputBuffered\fR(\fIchannel\fR)
 .sp
-Tcl_WideInt
+long long
 \fBTcl_Seek\fR(\fIchannel, offset, seekMode\fR)
 .sp
-Tcl_WideInt
+long long
 \fBTcl_Tell\fR(\fIchannel\fR)
 .sp
-.VS 8.5
 int
 \fBTcl_TruncateChannel\fR(\fIchannel, length\fR)
-.VE 8.5
 .sp
 int
 \fBTcl_GetChannelOption\fR(\fIinterp, channel, optionName, optionValue\fR)
 .sp
 int
 \fBTcl_SetChannelOption\fR(\fIinterp, channel, optionName, newValue\fR)
-.sp
+.fi
 .SH ARGUMENTS
 .AS Tcl_DString *channelName in/out
 .AP Tcl_Interp *interp in
@@ -117,11 +114,11 @@ Used for error reporting and to look up a channel registered in it.
 The name of a local or network file.
 .AP "const char" *mode in
 Specifies how the file is to be accessed.  May have any of the values
-allowed for the \fImode\fR argument to the Tcl \fBopen\fR command.  
+allowed for the \fImode\fR argument to the Tcl \fBopen\fR command.
 .AP int permissions in
 POSIX-style permission flags such as 0644.  If a new file is created, these
 permissions will be set on the created file.
-.AP int argc in
+.AP Tcl_Size argc in
 The number of elements in \fIargv\fR.
 .AP "const char" **argv in
 Arguments for constructing a command pipeline.  These values have the same
@@ -136,14 +133,14 @@ input of the invoking process; likewise for \fBTCL_STDOUT\fR and
 redirect stdio handles to override the stdio handles for which
 \fBTCL_STDIN\fR, \fBTCL_STDOUT\fR and \fBTCL_STDERR\fR have been set.  If it
 is set, then such redirections cause an error.
-.AP ClientData handle in
+.AP void *handle in
 Operating system specific handle for I/O to a file. For Unix this is a
 file descriptor, for Windows it is a HANDLE.
 .AP int readOrWrite in
 OR-ed combination of \fBTCL_READABLE\fR and \fBTCL_WRITABLE\fR to indicate
 what operations are valid on \fIhandle\fR.
 .AP "const char" *channelName in
-The name of the channel. 
+The name of the channel.
 .AP int *modePtr out
 Points at an integer variable that will receive an OR-ed combination of
 \fBTCL_READABLE\fR and \fBTCL_WRITABLE\fR denoting whether the channel is
@@ -154,45 +151,45 @@ The pattern to match on, passed to Tcl_StringMatch, or NULL.
 A Tcl channel for input or output.  Must have been the return value
 from a procedure such as \fBTcl_OpenFileChannel\fR.
 .AP Tcl_Obj *readObjPtr in/out
-A pointer to a Tcl Object in which to store the characters read from the
+A pointer to a Tcl value in which to store the characters read from the
 channel.
-.AP int charsToRead in
-The number of characters to read from the channel.  If the channel's encoding 
-is \fBbinary\fR, this is equivalent to the number of bytes to read from the 
+.AP Tcl_Size charsToRead in
+The number of characters to read from the channel.  If the channel's encoding
+is \fBbinary\fR, this is equivalent to the number of bytes to read from the
 channel.
 .AP int appendFlag in
-If non-zero, data read from the channel will be appended to the object.
-Otherwise, the data will replace the existing contents of the object.
+If non-zero, data read from the channel will be appended to the value.
+Otherwise, the data will replace the existing contents of the value.
 .AP char *readBuf out
 A buffer in which to store the bytes read from the channel.
-.AP int bytesToRead in
+.AP Tcl_Size bytesToRead in
 The number of bytes to read from the channel.  The buffer \fIreadBuf\fR must
 be large enough to hold this many bytes.
 .AP Tcl_Obj *lineObjPtr in/out
-A pointer to a Tcl object in which to store the line read from the
+A pointer to a Tcl value in which to store the line read from the
 channel.  The line read will be appended to the current value of the
-object. 
+value.
 .AP Tcl_DString *lineRead in/out
 A pointer to a Tcl dynamic string in which to store the line read from the
 channel.  Must have been initialized by the caller.  The line read will be
 appended to any data already in the dynamic string.
 .AP "const char" *input in
 The input to add to a channel buffer.
-.AP int inputLen in
+.AP Tcl_Size inputLen in
 Length of the input
 .AP int addAtEnd in
 Flag indicating whether the input should be added to the end or
 beginning of the channel buffer.
 .AP Tcl_Obj *writeObjPtr in
-A pointer to a Tcl Object whose contents will be output to the channel.
+A pointer to a Tcl value whose contents will be output to the channel.
 .AP "const char" *charBuf in
 A buffer containing the characters to output to the channel.
 .AP "const char" *byteBuf in
 A buffer containing the bytes to output to the channel.
-.AP int bytesToWrite in
+.AP Tcl_Size bytesToWrite in
 The number of bytes to consume from \fIcharBuf\fR or \fIbyteBuf\fR and
 output to the channel.
-.AP Tcl_WideInt offset in
+.AP "long long" offset in
 How far to move the access point in the channel at which the next input or
 output operation will be applied, measured in bytes from the position
 given by \fIseekMode\fR.  May be either positive or negative.
@@ -200,7 +197,7 @@ given by \fIseekMode\fR.  May be either positive or negative.
 Relative to which point to seek; used with \fIoffset\fR to calculate the new
 access point for the channel. Legal values are \fBSEEK_SET\fR,
 \fBSEEK_CUR\fR, and \fBSEEK_END\fR.
-.AP Tcl_WideInt length in
+.AP "long long" length in
 The (non-negative) length to truncate the channel the channel to.
 .AP "const char" *optionName in
 The name of an option applicable to this channel, such as \fB\-blocking\fR.
@@ -211,7 +208,6 @@ values. Must have been initialized by the caller.
 .AP "const char" *newValue in
 New value for the option given by \fIoptionName\fR.
 .BE
-
 .SH DESCRIPTION
 .PP
 The Tcl channel mechanism provides a device-independent and
@@ -229,7 +225,6 @@ The procedures described in this manual entry comprise the C APIs of the
 generic layer of the channel architecture. For a description of the channel
 driver architecture and how to implement channel drivers for new types of
 channels, see the manual entry for \fBTcl_CreateChannel\fR.
-
 .SH TCL_OPENFILECHANNEL
 .PP
 \fBTcl_OpenFileChannel\fR opens a file specified by \fIfileName\fR and
@@ -242,16 +237,15 @@ If an error occurs while opening the channel, \fBTcl_OpenFileChannel\fR
 returns NULL and records a POSIX error code that can be
 retrieved with \fBTcl_GetErrno\fR.
 In addition, if \fIinterp\fR is non-NULL, \fBTcl_OpenFileChannel\fR
-leaves an error message in \fIinterp\fR's result after any error.  
-As of Tcl 8.4, the object-based API \fBTcl_FSOpenFileChannel\fR should 
+leaves an error message in \fIinterp\fR's result after any error.
+As of Tcl 8.4, the value-based API \fBTcl_FSOpenFileChannel\fR should
 be used in preference to \fBTcl_OpenFileChannel\fR wherever possible.
 .PP
 The newly created channel is not registered in the supplied interpreter; to
 register it, use \fBTcl_RegisterChannel\fR, described below.
-If one of the standard channels, \fBstdin, stdout\fR or \fBstderr\fR was
+If one of the standard channels, \fBstdin\fR, \fBstdout\fR or \fBstderr\fR was
 previously closed, the act of creating the new channel also assigns it as a
 replacement for the standard channel.
-
 .SH TCL_OPENCOMMANDCHANNEL
 .PP
 \fBTcl_OpenCommandChannel\fR provides a C-level interface to the
@@ -282,24 +276,22 @@ If an error occurs while opening the channel, \fBTcl_OpenCommandChannel\fR
 returns NULL and records a POSIX error code that can be retrieved with
 \fBTcl_GetErrno\fR.
 In addition, \fBTcl_OpenCommandChannel\fR leaves an error message in
-the interpreter's result if \fIinterp\fR is not NULL.
+the interpreter's result. \fIinterp\fR cannot be NULL.
 .PP
 The newly created channel is not registered in the supplied interpreter; to
 register it, use \fBTcl_RegisterChannel\fR, described below.
-If one of the standard channels, \fBstdin, stdout\fR or \fBstderr\fR was
+If one of the standard channels, \fBstdin\fR, \fBstdout\fR or \fBstderr\fR was
 previously closed, the act of creating the new channel also assigns it as a
 replacement for the standard channel.
-
 .SH TCL_MAKEFILECHANNEL
 .PP
 \fBTcl_MakeFileChannel\fR makes a \fBTcl_Channel\fR from an existing,
 platform-specific, file handle.
 The newly created channel is not registered in the supplied interpreter; to
 register it, use \fBTcl_RegisterChannel\fR, described below.
-If one of the standard channels, \fBstdin, stdout\fR or \fBstderr\fR was
+If one of the standard channels, \fBstdin\fR, \fBstdout\fR or \fBstderr\fR was
 previously closed, the act of creating the new channel also assigns it as a
 replacement for the standard channel.
-
 .SH TCL_GETCHANNEL
 .PP
 \fBTcl_GetChannel\fR returns a channel given the \fIchannelName\fR used to
@@ -312,12 +304,11 @@ open for reading and writing.
 .PP
 \fBTcl_GetChannelNames\fR and \fBTcl_GetChannelNamesEx\fR write the
 names of the registered channels to the interpreter's result as a
-list object.  \fBTcl_GetChannelNamesEx\fR will filter these names
+list value.  \fBTcl_GetChannelNamesEx\fR will filter these names
 according to the \fIpattern\fR.  If \fIpattern\fR is NULL, then it
 will not do any filtering.  The return value is \fBTCL_OK\fR if no
 errors occurred writing to the result, otherwise it is \fBTCL_ERROR\fR,
 and the error message is left in the interpreter's result.
-
 .SH TCL_REGISTERCHANNEL
 .PP
 \fBTcl_RegisterChannel\fR adds a channel to the set of channels accessible
@@ -340,9 +331,8 @@ This procedure interacts with the code managing the standard
 channels. If no standard channels were initialized before the first
 call to \fBTcl_RegisterChannel\fR, they will get initialized by that
 call. See \fBTcl_StandardChannels\fR for a general treatise about
-standard channels and the behaviour of the Tcl library with regard to
+standard channels and the behavior of the Tcl library with regard to
 them.
-
 .SH TCL_UNREGISTERCHANNEL
 .PP
 \fBTcl_UnregisterChannel\fR removes a channel from the set of channels
@@ -357,31 +347,28 @@ that it no longer holds a reference to that channel. If this is the last
 reference to the channel, it will now be closed.  \fBTcl_UnregisterChannel\fR
 is very similar to \fBTcl_DetachChannel\fR except that it will also
 close the channel if no further references to it exist.
-
 .SH TCL_DETACHCHANNEL
 .PP
 \fBTcl_DetachChannel\fR removes a channel from the set of channels
 accessible in \fIinterp\fR. After this call, Tcl programs will no longer be
 able to use the channel's name to refer to the channel in that interpreter.
 Beyond that, this command has no further effect.  It cannot be used on
-the standard channels (stdout, stderr, stdin), and will return
+the standard channels (\fBstdout\fR, \fBstderr\fR, \fBstdin\fR), and will return
 \fBTCL_ERROR\fR if passed one of those channels.
 .PP
 Code not associated with a Tcl interpreter can call
 \fBTcl_DetachChannel\fR with \fIinterp\fR as NULL, to indicate to Tcl
 that it no longer holds a reference to that channel. If this is the last
-reference to the channel, unlike \fBTcl_UnregisterChannel\fR, 
+reference to the channel, unlike \fBTcl_UnregisterChannel\fR,
 it will not be closed.
-
 .SH TCL_ISSTANDARDCHANNEL
 .PP
 \fBTcl_IsStandardChannel\fR tests whether a channel is one of the
-three standard channels, stdin, stdout or stderr.  If so, it returns
-1, otherwise 0.
+three standard channels, \fBstdin\fR, \fBstdout\fR or \fBstderr\fR.
+If so, it returns 1, otherwise 0.
 .PP
-No attempt is made to check whether the given channel or the standard 
+No attempt is made to check whether the given channel or the standard
 channels are initialized or otherwise valid.
-
 .SH TCL_CLOSE
 .PP
 \fBTcl_Close\fR destroys the channel \fIchannel\fR, which must denote a
@@ -403,7 +390,7 @@ If the channel is being closed synchronously and an error occurs during
 closing of the channel and \fIinterp\fR is not NULL, an error message is
 left in the interpreter's result.
 .PP
-Note: it is not safe to call \fBTcl_Close\fR on a channel that has been
+Note that it is not safe to call \fBTcl_Close\fR on a channel that has been
 registered using \fBTcl_RegisterChannel\fR; see the documentation for
 \fBTcl_RegisterChannel\fR, above, for details. If the channel has ever
 been given as the \fBchan\fR argument in a call to
@@ -411,27 +398,28 @@ been given as the \fBchan\fR argument in a call to
 \fBTcl_UnregisterChannel\fR, which will internally call \fBTcl_Close\fR
 when all calls to \fBTcl_RegisterChannel\fR have been matched by
 corresponding calls to \fBTcl_UnregisterChannel\fR.
-
 .SH "TCL_READCHARS AND TCL_READ"
 .PP
 \fBTcl_ReadChars\fR consumes bytes from \fIchannel\fR, converting the bytes
-to UTF-8 based on the channel's encoding and storing the produced data in 
+to UTF-8 based on the channel's encoding and storing the produced data in
 \fIreadObjPtr\fR's string representation.  The return value of
 \fBTcl_ReadChars\fR is the number of characters, up to \fIcharsToRead\fR,
 that were stored in \fIreadObjPtr\fR.  If an error occurs while reading, the
-return value is \-1 and \fBTcl_ReadChars\fR records a POSIX error code that
-can be retrieved with \fBTcl_GetErrno\fR.
+return value is -1 and \fBTcl_ReadChars\fR records a POSIX error
+code that can be retrieved with \fBTcl_GetErrno\fR. If an encoding error happens
+while the channel is in blocking mode with -profile strict, the characters
+retrieved until the encoding error happened will be stored in \fIreadObjPtr\fR.
 .PP
-Setting \fIcharsToRead\fR to \fB\-1\fR will cause the command to read
+Setting \fIcharsToRead\fR to -1 will cause the command to read
 all characters currently available (non-blocking) or everything until
 eof (blocking mode).
 .PP
 The return value may be smaller than the value to read, indicating that less
 data than requested was available.  This is called a \fIshort read\fR.  In
 blocking mode, this can only happen on an end-of-file.  In nonblocking mode,
-a short read can also occur if there is not enough input currently
-available:  \fBTcl_ReadChars\fR returns a short count rather than waiting
-for more data.
+a short read can also occur if an encoding error is encountered (with -profile
+strict) or if there is not enough input currently available:
+\fBTcl_ReadChars\fR returns a short count rather than waiting for more data.
 .PP
 If the channel is in blocking mode, a return value of zero indicates an
 end-of-file condition.  If the channel is in nonblocking mode, a return
@@ -448,7 +436,7 @@ platform-specific modes are described in the manual entry for the Tcl
 As a performance optimization, when reading from a channel with the encoding
 \fBbinary\fR, the bytes are not converted to UTF-8 as they are read.
 Instead, they are stored in \fIreadObjPtr\fR's internal representation as a
-byte-array object.  The string representation of this object will only be
+byte-array value.  The string representation of this value will only be
 constructed if it is needed (e.g., because of a call to
 \fBTcl_GetStringFromObj\fR).  In this way, byte-oriented data can be read
 from a channel, manipulated by calling \fBTcl_GetByteArrayFromObj\fR and
@@ -463,7 +451,7 @@ extensions.  It consumes bytes from \fIchannel\fR and stores them in
 of \fBTcl_Read\fR is the number of bytes, up to \fIbytesToRead\fR, written in
 \fIreadBuf\fR.  The buffer produced by \fBTcl_Read\fR is not null-terminated.
 Its contents are valid from the zeroth position up to and excluding the
-position indicated by the return value.  
+position indicated by the return value.
 .PP
 \fBTcl_ReadRaw\fR is the same as \fBTcl_Read\fR but does not
 compensate for stacking. While \fBTcl_Read\fR (and the other functions
@@ -472,7 +460,6 @@ stack the supplied channel is part of, \fBTcl_ReadRaw\fR does
 not. Thus this function is \fBonly\fR usable for transformational
 channel drivers, i.e. drivers used in the middle of a stack of
 channels, to move data from the channel below into the transformation.
-
 .SH "TCL_GETSOBJ AND TCL_GETS"
 .PP
 \fBTcl_GetsObj\fR consumes bytes from \fIchannel\fR, converting the bytes to
@@ -485,21 +472,20 @@ character(s) are read and discarded.
 .PP
 If a line was successfully read, the return value is greater than or equal
 to zero and indicates the number of bytes stored in \fIlineObjPtr\fR.  If an
-error occurs, \fBTcl_GetsObj\fR returns \-1 and records a POSIX error code
+error occurs, \fBTcl_GetsObj\fR returns -1 and records a POSIX error code
 that can be retrieved with \fBTcl_GetErrno\fR.  \fBTcl_GetsObj\fR also
-returns \-1 if the end of the file is reached; the \fBTcl_Eof\fR procedure
+returns -1 if the end of the file is reached; the \fBTcl_Eof\fR procedure
 can be used to distinguish an error from an end-of-file condition.
 .PP
-If the channel is in nonblocking mode, the return value can also be \-1 if
-no data was available or the data that was available did not contain an
-end-of-line character.  When \-1 is returned, the \fBTcl_InputBlocked\fR
+If the channel is in nonblocking mode, the return value can also be -1
+if no data was available or the data that was available did not contain an
+end-of-line character.  When -1 is returned, the \fBTcl_InputBlocked\fR
 procedure may be invoked to determine if the channel is blocked because
 of input unavailability.
 .PP
 \fBTcl_Gets\fR is the same as \fBTcl_GetsObj\fR except the resulting
 characters are appended to the dynamic string given by
-\fIlineRead\fR rather than a Tcl object.
-
+\fIlineRead\fR rather than a Tcl value.
 .SH "TCL_UNGETS"
 .PP
 \fBTcl_Ungets\fR is used to add data to the input queue of a channel,
@@ -511,8 +497,7 @@ head of the queue.  If \fIchannel\fR has a
 .QW sticky
 EOF set, no data will be
 added to the input queue.  \fBTcl_Ungets\fR returns \fIinputLen\fR or
-\-1 if an error occurs.
-
+-1 if an error occurs.
 .SH "TCL_WRITECHARS, TCL_WRITEOBJ, AND TCL_WRITE"
 .PP
 \fBTcl_WriteChars\fR accepts \fIbytesToWrite\fR bytes of character data at
@@ -523,30 +508,30 @@ to be null-terminated and it outputs everything up to the null.
 .PP
 Data queued for output may not appear on the output device immediately, due
 to internal buffering.  If the data should appear immediately, call
-\fBTcl_Flush\fR after the call to \fBTcl_WriteChars\fR, or set the 
+\fBTcl_Flush\fR after the call to \fBTcl_WriteChars\fR, or set the
 \fB\-buffering\fR option on the channel to \fBnone\fR.  If you wish the data
 to appear as soon as a complete line is accepted for output, set the
 \fB\-buffering\fR option on the channel to \fBline\fR mode.
 .PP
 The return value of \fBTcl_WriteChars\fR is a count of how many bytes were
-accepted for output to the channel.  This is either greater than zero to
-indicate success or \-1 to indicate that an error occurred.  If an error
-occurs, \fBTcl_WriteChars\fR records a POSIX error code that may be
-retrieved with \fBTcl_GetErrno\fR.
+accepted for output to the channel.  This is either -1 to
+indicate that an error occurred or another number greater than
+zero to indicate success.  If an error occurs, \fBTcl_WriteChars\fR records
+a POSIX error code that may be retrieved with \fBTcl_GetErrno\fR.
 .PP
 Newline characters in the output data are translated to platform-specific
 end-of-line sequences according to the \fB\-translation\fR option for the
 channel.  This is done even if the channel has no encoding.
 .PP
 \fBTcl_WriteObj\fR is similar to \fBTcl_WriteChars\fR except it
-accepts a Tcl object whose contents will be output to the channel.  The
+accepts a Tcl value whose contents will be output to the channel.  The
 UTF-8 characters in \fIwriteObjPtr\fR's string representation are converted
-to the channel's encoding and queued for output to \fIchannel\fR.  
+to the channel's encoding and queued for output to \fIchannel\fR.
 As a performance optimization, when writing to a channel with the encoding
 \fBbinary\fR, UTF-8 characters are not converted as they are written.
 Instead, the bytes in \fIwriteObjPtr\fR's internal representation as a
-byte-array object are written to the channel.  The byte-array representation
-of the object will be constructed if it is needed.  In this way,
+byte-array value are written to the channel.  The byte-array representation
+of the value will be constructed if it is needed.  In this way,
 byte-oriented data can be read from a channel, manipulated by calling
 \fBTcl_GetByteArrayFromObj\fR and related functions, and then written to a
 channel without the expense of ever converting to or from UTF-8.
@@ -567,7 +552,6 @@ not. Thus this function is \fBonly\fR usable for transformational
 channel drivers, i.e. drivers used in the middle of a stack of
 channels, to move data from the transformation into the channel below
 it.
-
 .SH TCL_FLUSH
 .PP
 \fBTcl_Flush\fR causes all of the buffered output data for \fIchannel\fR
@@ -581,7 +565,6 @@ eventually, as fast as the channel is able to absorb it.
 The return value is normally \fBTCL_OK\fR.
 If an error occurs, \fBTcl_Flush\fR returns \fBTCL_ERROR\fR and
 records a POSIX error code that can be retrieved with \fBTcl_GetErrno\fR.
-
 .SH TCL_SEEK
 .PP
 \fBTcl_Seek\fR moves the access point in \fIchannel\fR where subsequent
@@ -592,20 +575,15 @@ buffered input is discarded, prior to the seek operation.
 If an error occurs, \fBTcl_Seek\fR returns \-1 and records a POSIX error
 code that can be retrieved with \fBTcl_GetErrno\fR.
 After an error, the access point may or may not have been moved.
-
 .SH TCL_TELL
 .PP
 \fBTcl_Tell\fR returns the current access point for a channel. The returned
 value is \-1 if the channel does not support seeking.
-
 .SH TCL_TRUNCATECHANNEL
 .PP
-.VS 8.5
 \fBTcl_TruncateChannel\fR truncates the file underlying \fIchannel\fR
 to a given \fIlength\fR of bytes. It returns \fBTCL_OK\fR if the
 operation succeeded, and \fBTCL_ERROR\fR otherwise.
-.VE 8.5
-
 .SH TCL_GETCHANNELOPTION
 .PP
 \fBTcl_GetChannelOption\fR retrieves, in \fIoptionValue\fR, the value of one of
@@ -622,12 +600,11 @@ their possible values are described in the manual entry for the Tcl
 \fBfconfigure\fR command. Other options can be added by each channel type.
 These channel type specific options are described in the manual entry for
 the Tcl command that creates a channel of that type; for example, the
-additional options for TCP based channels are described in the manual entry
+additional options for TCP-based channels are described in the manual entry
 for the Tcl \fBsocket\fR command.
 The procedure normally returns \fBTCL_OK\fR. If an error occurs, it returns
 \fBTCL_ERROR\fR and calls \fBTcl_SetErrno\fR to store an appropriate POSIX
 error code.
-
 .SH TCL_SETCHANNELOPTION
 .PP
 \fBTcl_SetChannelOption\fR sets a new value \fInewValue\fR
@@ -635,30 +612,26 @@ for an option \fIoptionName\fR on \fIchannel\fR.
 The procedure normally returns \fBTCL_OK\fR.  If an error occurs,
 it returns \fBTCL_ERROR\fR;  in addition, if \fIinterp\fR is non-NULL,
 \fBTcl_SetChannelOption\fR leaves an error message in the interpreter's result.
-
 .SH TCL_EOF
 .PP
 \fBTcl_Eof\fR returns a nonzero value if \fIchannel\fR encountered
 an end of file during the last input operation.
-
 .SH TCL_INPUTBLOCKED
 .PP
 \fBTcl_InputBlocked\fR returns a nonzero value if \fIchannel\fR is in
 nonblocking mode and the last input operation returned less data than
 requested because there was insufficient data available.
 The call always returns zero if the channel is in blocking mode.
-
 .SH TCL_INPUTBUFFERED
 .PP
 \fBTcl_InputBuffered\fR returns the number of bytes of input currently
 buffered in the internal buffers for a channel. If the channel is not open
 for reading, this function always returns zero.
-
 .SH TCL_OUTPUTBUFFERED
+.PP
 \fBTcl_OutputBuffered\fR returns the number of bytes of output
 currently buffered in the internal buffers for a channel. If the
 channel is not open for writing, this function always returns zero.
-
 .SH "PLATFORM ISSUES"
 .PP
 The handles returned from \fBTcl_GetChannelHandle\fR depend on the
@@ -669,10 +642,26 @@ the channel was created with \fBTcl_OpenFileChannel\fR,
 \fBTcl_OpenCommandChannel\fR, or \fBTcl_MakeFileChannel\fR.  Other
 channel types may return a different type of handle on Windows
 platforms.
-
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+The \fIreadObjPtr\fR argument to \fBTcl_ReadChars\fR must be an unshared
+value; it will be modified by this function.  Using the interpreter result for
+this purpose is \fIstrongly\fR not recommended; the preferred pattern is to
+use a new value from \fBTcl_NewObj\fR to receive the data and only to pass it
+to \fBTcl_SetObjResult\fR if this function succeeds.
+.PP
+The \fIlineObjPtr\fR argument to \fBTcl_GetsObj\fR must be an unshared value;
+it will be modified by this function.  Using the interpreter result for this
+purpose is \fIstrongly\fR not recommended; the preferred pattern is to use a
+new value from \fBTcl_NewObj\fR to receive the data and only to pass it to
+\fBTcl_SetObjResult\fR if this function succeeds.
+.PP
+The \fIwriteObjPtr\fR argument to \fBTcl_WriteObj\fR should be a value with
+any reference count. This function will not modify the reference count. Using
+the interpreter result without adding an additional reference to it is not
+recommended.
 .SH "SEE ALSO"
 DString(3), fconfigure(n), filename(n), fopen(3), Tcl_CreateChannel(3)
-
 .SH KEYWORDS
 access point, blocking, buffered I/O, channel, channel driver, end of file,
 flush, input, nonblocking, output, read, seek, write
diff --git a/doc/OpenTcp.3 b/doc/OpenTcp.3
index ec7edcd..01ed802 100644
--- a/doc/OpenTcp.3
+++ b/doc/OpenTcp.3
@@ -4,12 +4,12 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.TH Tcl_OpenTcpClient 3 8.0 Tcl "Tcl Library Procedures"
+.TH Tcl_OpenTcpClient 3 9.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
-Tcl_OpenTcpClient, Tcl_MakeTcpClientChannel, Tcl_OpenTcpServer \- procedures to open channels using TCP sockets
+Tcl_OpenTcpClient, Tcl_MakeTcpClientChannel, Tcl_OpenTcpServer, Tcl_OpenTcpServerEx \- procedures to open channels using TCP sockets
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h> \fR
@@ -23,6 +23,9 @@ Tcl_Channel
 Tcl_Channel
 \fBTcl_OpenTcpServer\fR(\fIinterp, port, myaddr, proc, clientData\fR)
 .sp
+Tcl_Channel
+\fBTcl_OpenTcpServerEx\fR(\fIinterp, service, myaddr, flags, backlog, proc, clientData\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_TcpAcceptProc clientData
 .AP Tcl_Interp *interp in
@@ -30,6 +33,9 @@ Tcl interpreter to use for error reporting.  If non-NULL and an
 error occurs, an error message is left in the interpreter's result.
 .AP int port in
 A port number to connect to as a client or to listen on as a server.
+.AP "const char" *service in
+A string specifying the port number to connect to as a client or to listen on as
+ a server.
 .AP "const char" *host in
 A string specifying a host name or address for the remote end of the connection.
 .AP int myport in
@@ -41,23 +47,26 @@ for the local end of the connection.  If NULL, a default interface is
 chosen.
 .AP int async in
 If nonzero, the client socket is connected asynchronously to the server.
-.AP ClientData sock in
+.AP int backlog in
+Length of OS listen backlog queue. Use -1 for default value.
+.AP "unsigned int" flags in
+ORed combination of \fBTCL_TCPSERVER_*\fR flags that specify additional
+information about the socket being created.
+.AP void *sock in
 Platform-specific handle for client TCP socket.
 .AP Tcl_TcpAcceptProc *proc in
 Pointer to a procedure to invoke each time a new connection is
 accepted via the socket.
-.AP ClientData clientData in
+.AP void *clientData in
 Arbitrary one-word value to pass to \fIproc\fR.
 .BE
-
 .SH DESCRIPTION
 .PP
 These functions are convenience procedures for creating
 channels that communicate over TCP sockets.
 The operations on a channel
 are described in the manual entry for \fBTcl_OpenFileChannel\fR.
-
-.SH TCL_OPENTCPCLIENT
+.SS TCL_OPENTCPCLIENT
 .PP
 \fBTcl_OpenTcpClient\fR opens a client TCP socket connected to a \fIport\fR
 on a specific \fIhost\fR, and returns a channel that can be used to
@@ -94,22 +103,20 @@ is left in the interpreter's result.
 .PP
 The newly created channel is not registered in the supplied interpreter; to
 register it, use \fBTcl_RegisterChannel\fR.
-If one of the standard channels, \fBstdin, stdout\fR or \fBstderr\fR was
+If one of the standard channels, \fBstdin\fR, \fBstdout\fR or \fBstderr\fR was
 previously closed, the act of creating the new channel also assigns it as a
 replacement for the standard channel.
-
-.SH TCL_MAKETCPCLIENTCHANNEL
+.SS TCL_MAKETCPCLIENTCHANNEL
 .PP
 \fBTcl_MakeTcpClientChannel\fR creates a \fBTcl_Channel\fR around an
 existing, platform specific, handle for a client TCP socket.
 .PP
 The newly created channel is not registered in the supplied interpreter; to
 register it, use \fBTcl_RegisterChannel\fR.
-If one of the standard channels, \fBstdin, stdout\fR or \fBstderr\fR was
+If one of the standard channels, \fBstdin\fR, \fBstdout\fR or \fBstderr\fR was
 previously closed, the act of creating the new channel also assigns it as a
 replacement for the standard channel.
-
-.SH TCL_OPENTCPSERVER
+.SS TCL_OPENTCPSERVER
 .PP
 \fBTcl_OpenTcpServer\fR opens a TCP socket on the local host on a specified
 \fIport\fR and uses the Tcl event mechanism to accept requests from clients
@@ -119,9 +126,10 @@ allow connections from any network interface.
 Each time a client connects to this socket, Tcl creates a channel
 for the new connection and invokes \fIproc\fR with information about
 the channel. \fIProc\fR must match the following prototype:
+.PP
 .CS
-typedef void Tcl_TcpAcceptProc(
-        ClientData \fIclientData\fR,
+typedef void \fBTcl_TcpAcceptProc\fR(
+        void *\fIclientData\fR,
         Tcl_Channel \fIchannel\fR,
         char *\fIhostName\fR,
         int \fIport\fR);
@@ -133,7 +141,7 @@ for the new channel, \fIhostName\fR points to a string containing
 the name of the client host making the connection, and \fIport\fR
 will contain the client's port number.
 The new channel
-is opened for both input and output. 
+is opened for both input and output.
 If \fIproc\fR raises an error, the connection is closed automatically.
 \fIProc\fR has no return value, but if it wishes to reject the
 connection it can close \fIchannel\fR.
@@ -158,18 +166,23 @@ a remote client is pending.
 .PP
 The newly created channel is not registered in the supplied interpreter; to
 register it, use \fBTcl_RegisterChannel\fR.
-If one of the standard channels, \fBstdin, stdout\fR or \fBstderr\fR was
+If one of the standard channels, \fBstdin\fR, \fBstdout\fR or \fBstderr\fR was
 previously closed, the act of creating the new channel also assigns it as a
 replacement for the standard channel.
-
+.SS TCL_OPENTCPSERVEREX
+.PP
+\fBTcl_OpenTcpServerEx\fR behaviour is identical to \fBTcl_OpenTcpServer\fR but
+gives more flexibility to the user by providing a mean to further customize some
+aspects of the socket via the \fIflags\fR parameter. Available
+flags (dependent on platform) are
+\fITCL_TCPSERVER_REUSEADDR\fR
+\fITCL_TCPSERVER_REUSEPORT\fR
 .SH "PLATFORM ISSUES"
 .PP
 On Unix platforms, the socket handle is a Unix file descriptor as
 returned by the \fBsocket\fR system call.  On the Windows platform, the
 socket handle is a \fBSOCKET\fR as defined in the WinSock API.
-
 .SH "SEE ALSO"
 Tcl_OpenFileChannel(3), Tcl_RegisterChannel(3), vwait(n)
-
 .SH KEYWORDS
-client, server, TCP
+channel, client, server, socket, TCP
diff --git a/doc/Panic.3 b/doc/Panic.3
index 454d313..25e38c2 100644
--- a/doc/Panic.3
+++ b/doc/Panic.3
@@ -1,41 +1,33 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_Panic 3 8.4 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 '\"  Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
-Tcl_Panic, Tcl_PanicVA, Tcl_SetPanicProc \- report fatal error and abort
+Tcl_Panic, Tcl_SetPanicProc, Tcl_ConsolePanic \- report fatal error and abort
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
 .sp
-void
 \fBTcl_Panic\fR(\fIformat\fR, \fIarg\fR, \fIarg\fR, \fI...\fR)
 .sp
-void
-\fBTcl_PanicVA\fR(\fIformat\fR, \fIargList\fR)
-.sp
-void
+const char *
 \fBTcl_SetPanicProc\fR(\fIpanicProc\fR)
 .sp
+\fBTcl_ConsolePanic\fR(\fIformat\fR, \fIarg\fR, \fIarg\fR, \fI...\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_PanicProc *panicProc
 .AP "const char*" format in
 A printf-style format string.
 .AP "" arg in
 Arguments matching the format string.
-.AP va_list argList in
-An argument list of arguments matching the format string.
-Must have been initialized using \fBva_start\fR,
-and cleared using \fBva_end\fR.
 .AP Tcl_PanicProc *panicProc in
 Procedure to report fatal error message and abort.
-
 .BE
-
 .SH DESCRIPTION
 .PP
 When the Tcl library detects that its internal data structures are in an
@@ -51,33 +43,44 @@ same formatting rules are also used by the built-in Tcl command
 In a freshly loaded Tcl library, \fBTcl_Panic\fR prints the formatted
 error message to the standard error file of the process, and then
 calls \fBabort\fR to terminate the process.  \fBTcl_Panic\fR does not
-return.
+return. On Windows, when a debugger is running, the formatted error
+message is sent to the debugger instead. If the windows executable
+does not have a stderr channel (e.g. \fBwish.exe\fR), then a
+system dialog box is used to display the panic message.
+.PP
+If your application doesn't use \fBTcl_Main\fR or \fBTk_Main\fR
+and you want to implicitly use the stderr channel of your
+application's C runtime (instead of the stderr channel of the
+C runtime used by Tcl), you can call \fBTcl_SetPanicProc\fR
+with \fBTcl_ConsolePanic\fR as its argument. On platforms which
+only have one C runtime (almost all platforms except Windows)
+\fBTcl_ConsolePanic\fR is equivalent to NULL.
 .PP
 \fBTcl_SetPanicProc\fR may be used to modify the behavior of
 \fBTcl_Panic\fR.  The \fIpanicProc\fR argument should match the
 type \fBTcl_PanicProc\fR:
 .PP
 .CS
-typedef void Tcl_PanicProc(
+typedef void \fBTcl_PanicProc\fR(
         const char *\fBformat\fR,
         \fBarg\fR, \fBarg\fR,...);
 .CE
 .PP
 After \fBTcl_SetPanicProc\fR returns, any future calls to
 \fBTcl_Panic\fR will call \fIpanicProc\fR, passing along the
-\fIformat\fR and \fIarg\fR arguments.  To maintain consistency with the
-callers of \fBTcl_Panic\fR, \fIpanicProc\fR must not return; it must
-call \fBabort\fR.  \fIpanicProc\fR should avoid making calls into the
-Tcl library, or into other libraries that may call the Tcl library,
-since the original call to \fBTcl_Panic\fR indicates the Tcl library is
-not in a state of reliable operation.  
+\fIformat\fR and \fIarg\fR arguments. \fIpanicProc\fR should avoid
+making calls into the Tcl library, or into other libraries that may
+call the Tcl library, since the original call to \fBTcl_Panic\fR
+indicates the Tcl library is not in a state of reliable operation.
+.PP
+The result of \fBTcl_SetPanicProc\fR is the full Tcl version with build
+information (e.g., \fB9.0.0+abcdef...abcdef.gcc-1002\fR).
 .PP
 The typical use of \fBTcl_SetPanicProc\fR arranges for the error message
 to be displayed or reported in a manner more suitable for the
-application or the platform.  As an example, the Windows implementation
-of \fBwish\fR calls \fBTcl_SetPanicProc\fR to force all panic messages
-to be displayed in a system dialog box, rather than to be printed to the
-standard error file (usually not visible under Windows).
+application or the platform.
+.PP
+\fBTcl_SetPanicProc\fR can not be used in stub-enabled extensions.
 .PP
 Although the primary callers of \fBTcl_Panic\fR are the procedures of
 the Tcl library, \fBTcl_Panic\fR is a public function and may be called
@@ -85,12 +88,7 @@ by any extension or application that wishes to abort the process and
 have a panic message displayed the same way that panic messages from Tcl
 will be displayed.
 .PP
-\fBTcl_PanicVA\fR is the same as \fBTcl_Panic\fR except that instead of
-taking a variable number of arguments it takes an argument list.
-
 .SH "SEE ALSO"
 abort(3), printf(3), exec(n), format(n)
-
 .SH KEYWORDS
 abort, fatal, error
-
diff --git a/doc/ParseArgs.3 b/doc/ParseArgs.3
new file mode 100644
index 0000000..594f4f1
--- /dev/null
+++ b/doc/ParseArgs.3
@@ -0,0 +1,186 @@
+'\"
+'\" Copyright (c) 2008 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH Tcl_ParseArgsObjv 3 8.6 Tcl "Tcl Library Procedures"
+.so man.macros
+.BS
+.SH NAME
+Tcl_ParseArgsObjv \- parse arguments according to a tabular description
+.SH SYNOPSIS
+.nf
+\fB#include <tcl.h>\fR
+.sp
+int
+\fBTcl_ParseArgsObjv\fR(\fIinterp, argTable, objcPtr, objv, remObjv\fR)
+.fi
+.SH ARGUMENTS
+.AS "const Tcl_ArgvInfo" ***remObjv in/out
+.AP Tcl_Interp *interp out
+Where to store error messages.
+.AP "const Tcl_ArgvInfo" *argTable in
+Pointer to array of option descriptors.
+.AP "Tcl_Size \&| int" *objcPtr in/out
+A pointer to variable holding number of arguments in \fIobjv\fR. Will be
+modified to hold number of arguments left in the unprocessed argument list
+stored in \fIremObjv\fR.
+May be (Tcl_Size *)NULL when not used. If it points to a variable which
+type is not \fBTcl_Size\fR, a compiler warning will be generated.
+If your extensions is compiled with -DTCL_8_API, this function will return
+NULL for argument lists with more than INT_MAX elements (which should
+trigger proper error-handling), otherwise expect it to crash.
+.AP "Tcl_Obj *const" *objv in
+The array of arguments to be parsed.
+.AP Tcl_Obj ***remObjv out
+Pointer to a variable that will hold the array of unprocessed arguments.
+Should be NULL if no return of unprocessed arguments is required. If
+\fIobjcPtr\fR is updated to a non-zero value, the array returned through this
+must be deallocated using \fBTcl_Free\fR.
+.BE
+.SH DESCRIPTION
+.PP
+The \fBTcl_ParseArgsObjv\fR function provides a system for parsing argument
+lists of the form
+.QW "\fB\-someName \fIsomeValue\fR ..." .
+Such argument lists are commonly found both in the arguments to a program and
+in the arguments to an individual Tcl command. This parser assumes that the
+order of the arguments does not matter, other than in so far as later copies
+of a duplicated option overriding earlier ones.
+.PP
+The argument array is described by the \fIobjcPtr\fR and \fIobjv\fR
+parameters, and an array of unprocessed arguments is returned through the
+\fIobjcPtr\fR and \fIremObjv\fR parameters; if no return of unprocessed
+arguments is desired, the \fIremObjv\fR parameter should be NULL. If any
+problems happen, including if the
+.QW "generate help"
+option is selected, an error message is left in the interpreter result and
+TCL_ERROR is returned. Otherwise, the interpreter result is left unchanged and
+TCL_OK is returned.
+.PP
+The collection of arguments to be parsed is described by the \fIargTable\fR
+parameter. This points to a table of descriptor structures that is terminated
+by an entry with the \fItype\fR field set to TCL_ARGV_END. As convenience, the
+following prototypical entries are provided:
+.IP \fBTCL_ARGV_AUTO_HELP\fR
+Enables the argument processor to provide help when passed the argument
+.QW \fB\-help\fR .
+.IP \fBTCL_ARGV_AUTO_REST\fR
+Instructs the argument processor that arguments after
+.QW \fB\-\-\fR
+are to be unprocessed.
+.IP \fBTCL_ARGV_TABLE_END\fR
+Marks the end of the table of argument descriptors.
+.SS "ARGUMENT DESCRIPTOR ENTRIES"
+.PP
+Each entry of the argument descriptor table must be a structure of type
+\fBTcl_ArgvInfo\fR. The structure is defined as this:
+.PP
+.CS
+typedef struct {
+    int \fItype\fR;
+    const char *\fIkeyStr\fR;
+    void *\fIsrcPtr\fR;
+    void *\fIdstPtr\fR;
+    const char *\fIhelpStr\fR;
+    void *\fIclientData\fR;
+} \fBTcl_ArgvInfo\fR;
+.CE
+.PP
+The \fIkeyStr\fR field contains the name of the option; by convention, this
+will normally begin with a
+.QW \fB\-\fR
+character. The \fItype\fR, \fIsrcPtr\fR, \fIdstPtr\fR and \fIclientData\fR
+fields describe the interpretation of the value of the argument, as described
+below. The \fIhelpStr\fR field gives some text that is used to provide help to
+users when they request it.
+.PP
+As noted above, the \fItype\fR field is used to describe the interpretation of
+the argument's value. The following values are acceptable values for
+\fItype\fR:
+.IP \fBTCL_ARGV_CONSTANT\fR
+The argument does not take any following value argument. If this argument is
+present, the (integer) value of the \fIsrcPtr\fR field is copied to the variable
+pointed to by the \fIdstPtr\fR field. The \fIclientData\fR field is ignored.
+.IP \fBTCL_ARGV_END\fR
+This value marks the end of all option descriptors in the table. All other
+fields are ignored.
+.IP \fBTCL_ARGV_FLOAT\fR
+This argument takes a following floating point value argument. The value (once
+parsed by \fBTcl_GetDoubleFromObj\fR) will be stored as a double-precision
+value in the variable pointed to by the \fIdstPtr\fR field. The \fIsrcPtr\fR
+and \fIclientData\fR fields are ignored.
+.IP \fBTCL_ARGV_FUNC\fR
+This argument optionally takes a following value argument; it is up to the
+handler callback function passed in \fIsrcPtr\fR to decide. That function will
+have the following signature:
+.RS
+.PP
+.CS
+typedef int (\fBTcl_ArgvFuncProc\fR)(
+        void *\fIclientData\fR,
+        Tcl_Obj *\fIobjPtr\fR,
+        void *\fIdstPtr\fR);
+.CE
+.PP
+The result is a boolean value indicating whether to consume the following
+argument. The \fIclientData\fR is the value from the table entry, the
+\fIobjPtr\fR is the value that represents the following argument or NULL if
+there are no following arguments at all, and the \fIdstPtr\fR argument to the
+\fBTcl_ArgvFuncProc\fR is the location to write the parsed value to.
+.RE
+.IP \fBTCL_ARGV_GENFUNC\fR
+This argument takes zero or more following arguments; the handler callback
+function passed in \fIsrcPtr\fR returns how many (or a negative number to
+signal an error, in which case it should also set the interpreter result). The
+function will have the following signature:
+.RS
+.PP
+.CS
+typedef Tcl_Size (\fBTcl_ArgvGenFuncProc\fR)(
+        void *\fIclientData\fR,
+        Tcl_Interp *\fIinterp\fR,
+        Tcl_Size \fIobjc\fR,
+        Tcl_Obj *const *\fIobjv\fR,
+        void *\fIdstPtr\fR);
+.CE
+.PP
+The \fIclientData\fR is the value from the table entry, the \fIinterp\fR
+is where to store any error messages, \fIobjc\fR and \fIobjv\fR describe
+an array of all the remaining arguments, and \fIdstPtr\fR argument to the
+\fBTcl_ArgvGenFuncProc\fR is the location to write the parsed value
+(or values) to.
+.RE
+.IP \fBTCL_ARGV_HELP\fR
+This special argument does not take any following value argument, but instead
+causes \fBTcl_ParseArgsObjv\fR to generate an error message describing the
+arguments supported. All other fields except the \fIhelpStr\fR field are
+ignored.
+.IP \fBTCL_ARGV_INT\fR
+This argument takes a following integer value argument. The value (once parsed
+by \fBTcl_GetIntFromObj\fR) will be stored as an int in the variable pointed
+to by the \fIdstPtr\fR field. The \fIsrcPtr\fR field is ignored.
+.IP \fBTCL_ARGV_REST\fR
+This special argument does not take any following value argument, but instead
+marks all following arguments to be left unprocessed. The \fIsrcPtr\fR,
+\fIdstPtr\fR and \fIclientData\fR fields are ignored.
+.IP \fBTCL_ARGV_STRING\fR
+This argument takes a following string value argument. A pointer to the string
+will be stored at \fIdstPtr\fR; the string inside will have a lifetime linked
+to the lifetime of the string representation of the argument value that it
+came from, and so should be copied if it needs to be retained. The
+\fIsrcPtr\fR and \fIclientData\fR fields are ignored.
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+The values in the \fIobjv\fR argument to \fBTcl_ParseArgsObjv\fR will not have
+their reference counts modified by this function. The interpreter result may
+be modified on error; the values passed should not be the interpreter result
+with no further reference added.
+.SH "SEE ALSO"
+Tcl_GetIndexFromObj(3), Tcl_Main(3), Tcl_CreateObjCommand(3)
+.SH KEYWORDS
+argument, parse
+'\" Local Variables:
+'\" fill-column: 78
+'\" End:
diff --git a/doc/ParseCmd.3 b/doc/ParseCmd.3
index e1a8790..68b2b52 100644
--- a/doc/ParseCmd.3
+++ b/doc/ParseCmd.3
@@ -3,12 +3,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_ParseCommand 3 8.3 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_ParseCommand, Tcl_ParseExpr, Tcl_ParseBraces, Tcl_ParseQuotedString, Tcl_ParseVarName, Tcl_ParseVar, Tcl_FreeParse, Tcl_EvalTokens, Tcl_EvalTokensStandard \- parse Tcl scripts and expressions
+Tcl_ParseCommand, Tcl_ParseExpr, Tcl_ParseBraces, Tcl_ParseQuotedString, Tcl_ParseVarName, Tcl_ParseVar, Tcl_FreeParse, Tcl_EvalTokensStandard \- parse Tcl scripts and expressions
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -33,30 +33,27 @@ const char *
 .sp
 \fBTcl_FreeParse\fR(\fIusedParsePtr\fR)
 .sp
-Tcl_Obj *
-\fBTcl_EvalTokens\fR(\fIinterp, tokenPtr, numTokens\fR)
-.sp
 int
 \fBTcl_EvalTokensStandard\fR(\fIinterp, tokenPtr, numTokens\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp *usedParsePtr out
 .AP Tcl_Interp *interp out
-For procedures other than \fBTcl_FreeParse\fR, \fBTcl_EvalTokens\fR
-and \fBTcl_EvalTokensStandard\fR, used only for error reporting;
+For procedures other than \fBTcl_FreeParse\fR and
+\fBTcl_EvalTokensStandard\fR, used only for error reporting;
 if NULL, then no error messages are left after errors.
-For \fBTcl_EvalTokens\fR and \fBTcl_EvalTokensStandard\fR,
-determines the context for evaluating the
-script and also is used for error reporting; must not be NULL.
+For \fBTcl_EvalTokensStandard\fR, determines the context for evaluating
+the script and also is used for error reporting; must not be NULL.
 .AP "const char" *start in
 Pointer to first character in string to parse.
-.AP int numBytes in
+.AP Tcl_Size numBytes in
 Number of bytes in string to parse, not including any terminating null
 character.  If less than 0 then the script consists of all characters
 following \fIstart\fR up to the first null character.
 .AP int nested in
 Non-zero means that the script is part of a command substitution so an
 unquoted close bracket should be treated as a command terminator.  If zero,
-close brackets have no special meaning. 
+close brackets have no special meaning.
 .AP int append in
 Non-zero means that \fI*parsePtr\fR already contains valid tokens; the new
 tokens should be appended to those already present.  Zero means that
@@ -80,7 +77,6 @@ if the parse was successful.
 Points to structure that was filled in by a previous call to
 \fBTcl_ParseCommand\fR, \fBTcl_ParseExpr\fR, \fBTcl_ParseVarName\fR, etc.
 .BE
-
 .SH DESCRIPTION
 .PP
 These procedures parse Tcl commands or portions of Tcl commands such as
@@ -119,7 +115,7 @@ result, and no information is left at \fI*parsePtr\fR.
 enclosed in braces such as
 \fB{hello}\fR or \fB{string \et with \et tabs}\fR
 from the beginning of its argument \fIstart\fR.
-The first character of \fIstart\fR must be \fB{\fR. 
+The first character of \fIstart\fR must be \fB{\fR.
 If the braced string was parsed successfully,
 \fBTcl_ParseBraces\fR returns \fBTCL_OK\fR,
 fills in the structure pointed to by \fIparsePtr\fR
@@ -135,7 +131,7 @@ and no information is left at \fI*parsePtr\fR or \fI*termPtr\fR.
 \fBTcl_ParseQuotedString\fR parses a double-quoted string such as
 \fB"sum is [expr {$a+$b}]"\fR
 from the beginning of the argument \fIstart\fR.
-The first character of \fIstart\fR must be \fB\N'34'\fR. 
+The first character of \fIstart\fR must be \fB\N'34'\fR.
 If the double-quoted string was parsed successfully,
 \fBTcl_ParseQuotedString\fR returns \fBTCL_OK\fR,
 fills in the structure pointed to by \fIparsePtr\fR
@@ -151,7 +147,7 @@ and no information is left at \fI*parsePtr\fR or \fI*termPtr\fR.
 \fBTcl_ParseVarName\fR parses a Tcl variable reference such as
 \fB$abc\fR or \fB$x([expr {$index + 1}])\fR from the beginning of its
 \fIstart\fR argument.
-The first character of \fIstart\fR must be \fB$\fR. 
+The first character of \fIstart\fR must be \fB$\fR.
 If a variable name was parsed successfully, \fBTcl_ParseVarName\fR
 returns \fBTCL_OK\fR and fills in the structure pointed to by
 \fIparsePtr\fR with information about the structure of the variable name
@@ -160,7 +156,7 @@ occurs while parsing the command then \fBTCL_ERROR\fR is returned, an
 error message is left in \fIinterp\fR's result (if \fIinterp\fR is not
 NULL), and no information is left at \fI*parsePtr\fR.
 .PP
-\fBTcl_ParseVar\fR parse a Tcl variable reference such as \fB$abc\fR
+\fBTcl_ParseVar\fR parses a Tcl variable reference such as \fB$abc\fR
 or \fB$x([expr {$index + 1}])\fR from the beginning of its \fIstart\fR
 argument.  The first character of \fIstart\fR must be \fB$\fR.  If
 the variable name is parsed successfully, \fBTcl_ParseVar\fR returns a
@@ -185,47 +181,37 @@ a Tcl_Parse structure.  The tokens typically consist
 of all the tokens in a word or all the tokens that make up the index for
 a reference to an array variable.  \fBTcl_EvalTokensStandard\fR performs the
 substitutions requested by the tokens and concatenates the
-resulting values. 
+resulting values.
 The return value from \fBTcl_EvalTokensStandard\fR is a Tcl completion
 code with one of the values \fBTCL_OK\fR, \fBTCL_ERROR\fR,
 \fBTCL_RETURN\fR, \fBTCL_BREAK\fR, or \fBTCL_CONTINUE\fR, or possibly
 some other integer value originating in an extension.
 In addition, a result value or error message is left in \fIinterp\fR's
 result; it can be retrieved using \fBTcl_GetObjResult\fR.
-.PP
-\fBTcl_EvalTokens\fR differs from \fBTcl_EvalTokensStandard\fR only in
-the return convention used: it returns the result in a new Tcl_Obj.
-The reference count of the object returned as result has been
-incremented, so the caller must
-invoke \fBTcl_DecrRefCount\fR when it is finished with the object.
-If an error or other exception occurs while evaluating the tokens
-(such as a reference to a non-existent variable) then the return value
-is NULL and an error message is left in \fIinterp\fR's result. The use
-of \fBTcl_EvalTokens\fR is deprecated.
-
 .SH "TCL_PARSE STRUCTURE"
 .PP
 \fBTcl_ParseCommand\fR, \fBTcl_ParseExpr\fR, \fBTcl_ParseBraces\fR,
 \fBTcl_ParseQuotedString\fR, and \fBTcl_ParseVarName\fR
 return parse information in two data structures, Tcl_Parse and Tcl_Token:
+.PP
 .CS
-typedef struct Tcl_Parse {
-        const char *\fIcommentStart\fR;
-        int \fIcommentSize\fR;
-        const char *\fIcommandStart\fR;
-        int \fIcommandSize\fR;
-        int \fInumWords\fR;
-        Tcl_Token *\fItokenPtr\fR;
-        int \fInumTokens\fR;
-        ...
-} Tcl_Parse;
+typedef struct {
+    const char *\fIcommentStart\fR;
+    Tcl_Size \fIcommentSize\fR;
+    const char *\fIcommandStart\fR;
+    Tcl_Size \fIcommandSize\fR;
+    Tcl_Size \fInumWords\fR;
+    Tcl_Token *\fItokenPtr\fR;
+    Tcl_Size \fInumTokens\fR;
+    ...
+} \fBTcl_Parse\fR;
 
-typedef struct Tcl_Token {
-        int \fItype\fR;
-        const char *\fIstart\fR;
-        int \fIsize\fR;
-        int \fInumComponents\fR;
-} Tcl_Token;
+typedef struct {
+    int \fItype\fR;
+    const char *\fIstart\fR;
+    Tcl_Size \fIsize\fR;
+    Tcl_Size \fInumComponents\fR;
+} \fBTcl_Token\fR;
 .CE
 .PP
 The first five fields of a Tcl_Parse structure
@@ -234,8 +220,7 @@ These fields are not used by the other parsing procedures.
 .PP
 \fBTcl_ParseCommand\fR fills in a Tcl_Parse structure
 with information that describes one Tcl command and any comments that
-precede the command.
-If there are comments,
+precede the command. If there are comments,
 the \fIcommentStart\fR field points to the \fB#\fR character that begins
 the first comment and \fIcommentSize\fR indicates the number of bytes
 in all of the comments preceding the command, including the newline
@@ -243,7 +228,7 @@ character that terminates the last comment.
 If the command is not preceded by any comments, \fIcommentSize\fR is 0.
 \fBTcl_ParseCommand\fR also sets the \fIcommandStart\fR field
 to point to the first character of the first
-word in the command (skipping any comments and leading space) and 
+word in the command (skipping any comments and leading space) and
 \fIcommandSize\fR gives the total number of bytes in the command,
 including the character pointed to by \fIcommandStart\fR up to and
 including the newline, close bracket, or semicolon character that
@@ -265,8 +250,7 @@ such as \fBTCL_TOKEN_WORD\fR and \fBTCL_TOKEN_VARIABLE\fR, consist of
 several component tokens, which immediately follow the parent token;
 the \fInumComponents\fR field describes how many of these there are.
 The \fItype\fR field has one of the following values:
-.TP 20
-\fBTCL_TOKEN_WORD\fR
+.IP \fBTCL_TOKEN_WORD\fR
 This token ordinarily describes one word of a command
 but it may also describe a quoted or braced string in an expression.
 The token describes a component of the script that is
@@ -279,38 +263,30 @@ space, semicolon, close bracket, close quote, or close brace that
 terminates the component.  The \fInumComponents\fR field counts the total
 number of sub-tokens that make up the word, including sub-tokens
 of \fBTCL_TOKEN_VARIABLE\fR and \fBTCL_TOKEN_BS\fR tokens.
-.TP
-\fBTCL_TOKEN_SIMPLE_WORD\fR
+.IP \fBTCL_TOKEN_SIMPLE_WORD\fR
 This token has the same meaning as \fBTCL_TOKEN_WORD\fR, except that
 the word is guaranteed to consist of a single \fBTCL_TOKEN_TEXT\fR
 sub-token.  The \fInumComponents\fR field is always 1.
-.TP
-\fBTCL_TOKEN_EXPAND_WORD\fR
-.VS 8.5
+.IP \fBTCL_TOKEN_EXPAND_WORD\fR
 This token has the same meaning as \fBTCL_TOKEN_WORD\fR, except that
 the command parser notes this word began with the expansion
 prefix \fB{*}\fR, indicating that after substitution,
 the list value of this word should be expanded to form multiple
 arguments in command evaluation.  This
 token type can only be created by Tcl_ParseCommand.
-.VE 8.5
-.TP
-\fBTCL_TOKEN_TEXT\fR
+.IP \fBTCL_TOKEN_TEXT\fR
 The token describes a range of literal text that is part of a word.
 The \fInumComponents\fR field is always 0.
-.TP
-\fBTCL_TOKEN_BS\fR
+.IP \fBTCL_TOKEN_BS\fR
 The token describes a backslash sequence such as \fB\en\fR or \fB\e0xA3\fR.
 The \fInumComponents\fR field is always 0.
-.TP
-\fBTCL_TOKEN_COMMAND\fR
+.IP \fBTCL_TOKEN_COMMAND\fR
 The token describes a command whose result must be substituted into
 the word.  The token includes the square brackets that surround the
 command.  The \fInumComponents\fR field is always 0 (the nested command
 is not parsed; call \fBTcl_ParseCommand\fR recursively if you want to
 see its tokens).
-.TP
-\fBTCL_TOKEN_VARIABLE\fR
+.IP \fBTCL_TOKEN_VARIABLE\fR
 The token describes a variable substitution, including the
 \fB$\fR, variable name, and array index (if there is one) up through the
 close parenthesis that terminates the index.  This token is followed
@@ -324,8 +300,7 @@ token giving the array name and the remaining sub-tokens are
 \fBTCL_TOKEN_VARIABLE\fR tokens that must be concatenated to produce the
 array index. The \fInumComponents\fR field includes nested sub-tokens
 that are part of \fBTCL_TOKEN_VARIABLE\fR tokens in the array index.
-.TP
-\fBTCL_TOKEN_SUB_EXPR\fR
+.IP \fBTCL_TOKEN_SUB_EXPR\fR
 The token describes one subexpression of an expression
 (or an entire expression).
 A subexpression may consist of a value
@@ -345,13 +320,12 @@ just the \fBTCL_TOKEN_OPERATOR\fR token.
 Each operand is described by a \fBTCL_TOKEN_SUB_EXPR\fR token.
 Otherwise, the subexpression is a value described by
 one of the token types \fBTCL_TOKEN_WORD\fR, \fBTCL_TOKEN_TEXT\fR,
-\fBTCL_TOKEN_BS\fR, \fBTCL_TOKEN_COMMAND\fR, 
+\fBTCL_TOKEN_BS\fR, \fBTCL_TOKEN_COMMAND\fR,
 \fBTCL_TOKEN_VARIABLE\fR, and \fBTCL_TOKEN_SUB_EXPR\fR.
 The \fInumComponents\fR field
 counts the total number of sub-tokens that make up the subexpression;
 this includes the sub-tokens for any nested \fBTCL_TOKEN_SUB_EXPR\fR tokens.
-.TP
-\fBTCL_TOKEN_OPERATOR\fR
+.IP \fBTCL_TOKEN_OPERATOR\fR
 The token describes one operator of an expression
 such as \fB&&\fR or \fBhypot\fR.
 A \fBTCL_TOKEN_OPERATOR\fR token is always preceded by a
@@ -383,8 +357,7 @@ is always 0.
 After \fBTcl_ParseCommand\fR returns, the first token pointed to by
 the \fItokenPtr\fR field of the
 Tcl_Parse structure always has type \fBTCL_TOKEN_WORD\fR or
-.VS 8.5
-\fBTCL_TOKEN_SIMPLE_WORD\fR or \fBTCL_TOKEN_EXPAND_WORD\fR.  
+\fBTCL_TOKEN_SIMPLE_WORD\fR or \fBTCL_TOKEN_EXPAND_WORD\fR.
 It is followed by the sub-tokens
 that must be concatenated to produce the value of that word.
 The next token is the \fBTCL_TOKEN_WORD\fR or \fBTCL_TOKEN_SIMPLE_WORD\fR
@@ -392,7 +365,6 @@ of \fBTCL_TOKEN_EXPAND_WORD\fR token for the second word,
 followed by sub-tokens for that
 word, and so on until all \fInumWords\fR have been accounted
 for.
-.VE 8.5
 .PP
 After \fBTcl_ParseExpr\fR returns, the first token pointed to by
 the \fItokenPtr\fR field of the
@@ -459,6 +431,6 @@ There are additional fields in the Tcl_Parse structure after the
 \fBTcl_ParseCommand\fR, \fBTcl_ParseExpr\fR, \fBTcl_ParseBraces\fR,
 \fBTcl_ParseQuotedString\fR, and \fBTcl_ParseVarName\fR; they should not be
 referenced by code outside of these procedures.
-
 .SH KEYWORDS
-backslash substitution, braces, command, expression, parse, token, variable substitution
+backslash substitution, braces, command, expression, parse, token,
+variable substitution
diff --git a/doc/PkgRequire.3 b/doc/PkgRequire.3
index b7d0e6e..c19065b 100644
--- a/doc/PkgRequire.3
+++ b/doc/PkgRequire.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_PkgRequire 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -33,33 +33,33 @@ int
 .sp
 int
 \fBTcl_PkgProvideEx\fR(\fIinterp, name, version, clientData\fR)
+.fi
 .SH ARGUMENTS
-.AS ClientData clientDataPtr out
+.AS void *clientDataPtr out
 .AP Tcl_Interp *interp in
 Interpreter where package is needed or available.
 .AP "const char" *name in
 Name of package.
 .AP "const char" *version in
-A version string consisting of one or more decimal numbers
-separated by dots.
+A version specification string as described for \fBpackage require\fR.
 .AP int exact in
 Non-zero means that only the particular version specified by
 \fIversion\fR is acceptable.
 Zero means that newer versions than \fIversion\fR are also
 acceptable as long as they have the same major version number
 as \fIversion\fR.
-.AP ClientData clientData in
+.AP "const void" *clientData in
 Arbitrary value to be associated with the package.
-.AP ClientData *clientDataPtr out
+.AP void *clientDataPtr out
 Pointer to place to store the value associated with the matching
 package. It is only changed if the pointer is not NULL and the
-function completed successfully.
-.AP int objc in
+function completed successfully. The storage can be any pointer
+type with the same size as a void pointer.
+.AP Tcl_Size objc in
 Number of requirements.
 .AP Tcl_Obj* objv[] in
 Array of requirements.
 .BE
-
 .SH DESCRIPTION
 .PP
 These procedures provide C-level interfaces to Tcl's package and
@@ -75,8 +75,8 @@ procedures do.
 .PP
 If \fBTcl_PkgPresent\fR or \fBTcl_PkgRequire\fR complete successfully
 they return a pointer to the version string for the version of the package
-that is provided in the interpreter (which may be different than 
-\fIversion\fR); if an error occurs they return NULL and leave an error 
+that is provided in the interpreter (which may be different than
+\fIversion\fR); if an error occurs they return NULL and leave an error
 message in the interpreter's result.
 .PP
 \fBTcl_PkgProvide\fR returns \fBTCL_OK\fR if it completes successfully;
@@ -91,6 +91,11 @@ functions.
 \fBTcl_PkgRequireProc\fR is the form of \fBpackage require\fR handling
 multiple requirements. The other forms are present for backward
 compatibility and translate their invocations to this form.
-
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+The requirements values given (in the \fIobjv\fR argument) to
+\fBTcl_PkgRequireProc\fR must have non-zero reference counts.
 .SH KEYWORDS
 package, present, provide, require, version
+.SH "SEE ALSO"
+package(n), Tcl_StaticLibrary(3)
diff --git a/doc/Preserve.3 b/doc/Preserve.3
index 5b808cd..d676b9a 100644
--- a/doc/Preserve.3
+++ b/doc/Preserve.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_Preserve 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -19,15 +19,15 @@ Tcl_Preserve, Tcl_Release, Tcl_EventuallyFree \- avoid freeing storage while it
 \fBTcl_Release\fR(\fIclientData\fR)
 .sp
 \fBTcl_EventuallyFree\fR(\fIclientData, freeProc\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_FreeProc clientData
-.AP ClientData clientData in
+.AP void *clientData in
 Token describing structure to be freed or reallocated.  Usually a pointer
 to memory for structure.
 .AP Tcl_FreeProc *freeProc in
 Procedure to invoke to free \fIclientData\fR.
 .BE
-
 .SH DESCRIPTION
 .PP
 These three procedures help implement a simple reference count mechanism
@@ -78,18 +78,18 @@ calls to \fBTcl_Release\fR then \fIfreeProc\fR will be called by
 All the work of freeing the object is carried out by \fIfreeProc\fR.
 \fIFreeProc\fR must have arguments and result that match the
 type \fBTcl_FreeProc\fR:
+.PP
 .CS
-typedef void Tcl_FreeProc(char *\fIblockPtr\fR);
+typedef void \fBTcl_FreeProc\fR(
+        void *\fIblockPtr\fR);
 .CE
+.PP
 The \fIblockPtr\fR argument to \fIfreeProc\fR will be the
 same as the \fIclientData\fR argument to \fBTcl_EventuallyFree\fR.
-The type of \fIblockPtr\fR (\fBchar *\fR) is different than the type of the
-\fIclientData\fR argument to \fBTcl_EventuallyFree\fR for historical
-reasons, but the value is the same.
 .PP
 When the \fIclientData\fR argument to \fBTcl_EventuallyFree\fR
 refers to storage allocated and returned by a prior call to
-\fBTcl_Alloc\fR, \fBckalloc\fR, or another function of the Tcl library,
+\fBTcl_Alloc\fR or another function of the Tcl library,
 then the \fIfreeProc\fR argument should be given the special value of
 \fBTCL_DYNAMIC\fR.
 .PP
@@ -102,9 +102,7 @@ mechanism for long-term reference counts.
 The implementation does not depend in any way on the internal
 structure of the objects being freed;  it keeps the reference
 counts in a separate structure.
-
 .SH "SEE ALSO"
 Tcl_Interp, Tcl_Alloc
-
 .SH KEYWORDS
 free, reference count, storage
diff --git a/doc/PrintDbl.3 b/doc/PrintDbl.3
index 508b230..79398ab 100644
--- a/doc/PrintDbl.3
+++ b/doc/PrintDbl.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_PrintDouble 3 8.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -15,20 +15,17 @@ Tcl_PrintDouble \- Convert floating value to string
 \fB#include <tcl.h>\fR
 .sp
 \fBTcl_PrintDouble\fR(\fIinterp, value, dst\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp *interp out
 .AP Tcl_Interp *interp in
-Before Tcl 8.0, the \fBtcl_precision\fR variable in this interpreter
-controlled the conversion.  As of Tcl 8.0, this argument is ignored and
-the conversion is controlled by the \fBtcl_precision\fR variable
-that is now shared by all interpreters.
+This argument is ignored.
 .AP double value in
 Floating-point value to be converted.
 .AP char *dst out
 Where to store the string representing \fIvalue\fR.  Must have at
 least \fBTCL_DOUBLE_SPACE\fR characters of storage.
 .BE
-
 .SH DESCRIPTION
 .PP
 \fBTcl_PrintDouble\fR generates a string that represents the value
@@ -41,15 +38,10 @@ or an
 so that it does not look like an integer.  Where \fB%g\fR would
 generate an integer with no decimal point, \fBTcl_PrintDouble\fR adds
 .QW .0 .
-.VS 8.5
 .PP
-If the \fBtcl_precision\fR value is non-zero, the result will have
-precisely that many digits of significance.  If the value is zero
-(the default), the result will have the fewest digits needed to
+The result will have the fewest digits needed to
 represent the number in such a way that \fBTcl_NewDoubleObj\fR
 will generate the same number when presented with the given string.
 IEEE semantics of rounding to even apply to the conversion.
-.VE
-
 .SH KEYWORDS
 conversion, double-precision, floating-point, string
diff --git a/doc/RecEvalObj.3 b/doc/RecEvalObj.3
index f0bb183..7bfee95 100644
--- a/doc/RecEvalObj.3
+++ b/doc/RecEvalObj.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_RecordAndEvalObj 3 8.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -15,12 +15,13 @@ Tcl_RecordAndEvalObj \- save command on history list before evaluating
 .sp
 int
 \fBTcl_RecordAndEvalObj\fR(\fIinterp, cmdPtr, flags\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp *interp
 .AP Tcl_Interp *interp in
 Tcl interpreter in which to evaluate command.
 .AP Tcl_Obj *cmdPtr in
-Points to a Tcl object containing a command (or sequence of commands)
+Points to a Tcl value containing a command (or sequence of commands)
 to execute.
 .AP int flags in
 An OR'ed combination of flag bits.  \fBTCL_NO_EVAL\fR means record the
@@ -31,11 +32,9 @@ the command at global level instead of the current stack level.
 .SH DESCRIPTION
 .PP
 \fBTcl_RecordAndEvalObj\fR is invoked to record a command as an event
-on the history list and then execute it using \fBTcl_EvalObjEx\fR
-(or \fBTcl_GlobalEvalObj\fR if the \fBTCL_EVAL_GLOBAL\fR bit is set
-in \fIflags\fR).
+on the history list and then execute it using \fBTcl_EvalObjEx\fR.
 It returns a completion code such as \fBTCL_OK\fR just like \fBTcl_EvalObjEx\fR,
-as well as a result object containing additional information
+as well as a result value containing additional information
 (a result value or error message)
 that can be retrieved using \fBTcl_GetObjResult\fR.
 If you do not want the command recorded on the history list then
@@ -46,8 +45,14 @@ allow the user to re-issue recently invoked commands.
 If the \fIflags\fR argument contains the \fBTCL_NO_EVAL\fR bit then
 the command is recorded without being evaluated.
 
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+The reference count of the \fIcmdPtr\fR argument to \fBTcl_RecordAndEvalObj\fR
+must be at least 1. This function will modify the interpreter result; do not
+use an existing result as \fIcmdPtr\fR directly without incrementing its
+reference count.
 .SH "SEE ALSO"
 Tcl_EvalObjEx, Tcl_GetObjResult
 
 .SH KEYWORDS
-command, event, execute, history, interpreter, object, record
+command, event, execute, history, interpreter, value, record
diff --git a/doc/RecordEval.3 b/doc/RecordEval.3
index f4a403e..a5887f0 100644
--- a/doc/RecordEval.3
+++ b/doc/RecordEval.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_RecordAndEval 3 7.4 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -16,6 +16,7 @@ Tcl_RecordAndEval \- save command on history list before evaluating
 .sp
 int
 \fBTcl_RecordAndEval\fR(\fIinterp, cmd, flags\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp *interp
 .AP Tcl_Interp *interp in
@@ -44,9 +45,9 @@ If the \fIflags\fR argument contains the \fBTCL_NO_EVAL\fR bit then
 the command is recorded without being evaluated.
 .PP
 Note that \fBTcl_RecordAndEval\fR has been largely replaced by the
-object-based procedure \fBTcl_RecordAndEvalObj\fR.
-That object-based procedure records and optionally executes
-a command held in a Tcl object instead of a string.
+value-based procedure \fBTcl_RecordAndEvalObj\fR.
+That value-based procedure records and optionally executes
+a command held in a Tcl value instead of a string.
 
 .SH "SEE ALSO"
 Tcl_RecordAndEvalObj
diff --git a/doc/RegConfig.3 b/doc/RegConfig.3
index 7f99b8f..f2bd2e3 100644
--- a/doc/RegConfig.3
+++ b/doc/RegConfig.3
@@ -14,9 +14,8 @@ Tcl_RegisterConfig \- procedures to register embedded configuration information
 .nf
 \fB#include <tcl.h>\fR
 .sp
-void
 \fBTcl_RegisterConfig\fR(\fIinterp, pkgName, configuration, valEncoding\fR)
-.sp
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp *configuration
 .AP Tcl_Interp *interp in
@@ -26,9 +25,9 @@ registered for. Must not be NULL.
 Contains the name of the package registering the embedded
 configuration as ASCII string. This means that this information is in
 UTF-8 too. Must not be NULL.
-.AP Tcl_Config *configuration in
+.AP "const Tcl_Config" *configuration in
 Refers to an array of Tcl_Config entries containing the information
-embedded in the binary library. Must not be NULL. The end of the array
+embedded in the library. Must not be NULL. The end of the array
 is signaled by either a key identical to NULL, or a key referring to
 the empty string.
 .AP "const char" *valEncoding in
@@ -36,15 +35,14 @@ Contains the name of the encoding used to store the configuration
 values as ASCII string. This means that this information is in UTF-8
 too. Must not be NULL.
 .BE
-
 .SH DESCRIPTION
 .PP
 The function described here has its base in TIP 59 and provides
 extensions with support for the embedding of configuration
-information into their binary library and the generation of a
+information into their library and the generation of a
 Tcl-level interface for querying this information.
 .PP
-To embed configuration information into their binary library an
+To embed configuration information into their library an
 extension has to define a non-volatile array of Tcl_Config entries in
 one if its source files and then call \fBTcl_RegisterConfig\fR to
 register that information.
@@ -81,32 +79,35 @@ create a namespace having the provided \fIpkgName\fR, if not yet
 existing.
 .IP (2)
 create the command \fBpkgconfig\fR in that namespace and link it to
-the provided information so that the keys from _configuration_ and
+the provided information so that the keys from \fIconfiguration\fR and
 their associated values can be retrieved through calls to
 \fBpkgconfig\fR.
 .PP
 The command \fBpkgconfig\fR will provide two subcommands, \fBlist\fR
 and \fBget\fR:
 .RS
+.\" METHOD: list
 .TP
 ::\fIpkgName\fR::\fBpkgconfig\fR list
+.
 Returns a list containing the names of all defined keys.
+.\" METHOD: get
 .TP
 ::\fIpkgName\fR::\fBpkgconfig\fR get \fIkey\fR
-Returns the configuration value associated with the specified
-\fIkey\fR.
+.
+Returns the configuration value associated with the specified \fIkey\fR.
 .RE
 .SH TCL_CONFIG
 .PP
 The \fBTcl_Config\fR structure contains the following fields:
 .PP
 .CS
-typedef struct Tcl_Config {
-    const char* key;
-    const char* value;
-} Tcl_Config;
+typedef struct {
+    const char *\fIkey\fR;
+    const char *\fIvalue\fR;
+} \fBTcl_Config\fR;
 .CE
 .\" No cross references yet.
 .\" .SH "SEE ALSO"
 .SH KEYWORDS
-embedding, configuration, binary library
+embedding, configuration, library
diff --git a/doc/RegExp.3 b/doc/RegExp.3
index c337cf8..114bbbb 100644
--- a/doc/RegExp.3
+++ b/doc/RegExp.3
@@ -5,7 +5,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_RegExpMatch 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -27,7 +27,6 @@ Tcl_RegExp
 int
 \fBTcl_RegExpExec\fR(\fIinterp\fR, \fIregexp\fR, \fItext\fR, \fIstart\fR)
 .sp
-void
 \fBTcl_RegExpRange\fR(\fIregexp\fR, \fIindex\fR, \fIstartPtr\fR, \fIendPtr\fR)
 .sp
 Tcl_RegExp
@@ -36,7 +35,6 @@ Tcl_RegExp
 int
 \fBTcl_RegExpExecObj\fR(\fIinterp\fR, \fIregexp\fR, \fItextObj\fR, \fIoffset\fR, \fInmatches\fR, \fIeflags\fR)
 .sp
-void
 \fBTcl_RegExpGetInfo\fR(\fIregexp\fR, \fIinfoPtr\fR)
 .fi
 .SH ARGUMENTS
@@ -45,26 +43,26 @@ void
 Tcl interpreter to use for error reporting.  The interpreter may be
 NULL if no error reporting is desired.
 .AP Tcl_Obj *textObj in/out
-Refers to the object from which to get the text to search.  The
-internal representation of the object may be converted to a form that
+Refers to the value from which to get the text to search.  The
+internal representation of the value may be converted to a form that
 can be efficiently searched.
 .AP Tcl_Obj *patObj in/out
-Refers to the object from which to get a regular expression. The
-compiled regular expression is cached in the object.
-.AP char *text in
+Refers to the value from which to get a regular expression. The
+compiled regular expression is cached in the value.
+.AP "const char" *text in
 Text to search for a match with a regular expression.
 .AP "const char" *pattern in
 String in the form of a regular expression pattern.
 .AP Tcl_RegExp regexp in
 Compiled regular expression.  Must have been returned previously
 by \fBTcl_GetRegExpFromObj\fR or \fBTcl_RegExpCompile\fR.
-.AP char *start in
+.AP "const char" *start in
 If \fItext\fR is just a portion of some other string, this argument
 identifies the beginning of the larger string.
 If it is not the same as \fItext\fR, then no
 .QW \fB^\fR
 matches will be allowed.
-.AP int index in
+.AP Tcl_Size index in
 Specifies which range is desired:  0 means the range of the entire
 match, 1 or greater means the range that matched a parenthesized
 sub-expression.
@@ -80,14 +78,14 @@ OR-ed combination of the compilation flags \fBTCL_REG_ADVANCED\fR,
 \fBTCL_REG_QUOTE\fR, \fBTCL_REG_NOCASE\fR, \fBTCL_REG_NEWLINE\fR,
 \fBTCL_REG_NLSTOP\fR, \fBTCL_REG_NLANCH\fR, \fBTCL_REG_NOSUB\fR, and
 \fBTCL_REG_CANMATCH\fR. See below for more information.
-.AP int offset in
+.AP Tcl_Size offset in
 The character offset into the text where matching should begin.
 The value of the offset has no impact on \fB^\fR matches.  This
 behavior is controlled by \fIeflags\fR.
-.AP int nmatches in
+.AP Tcl_Size nmatches in
 The number of matching subexpressions that should be remembered for
 later use.  If this value is 0, then no subexpression match
-information will be computed.  If the value is \-1, then
+information will be computed.  If the value is negative, then
 all of the matching subexpressions will be remembered.  Any other
 value will be taken as the maximum number of subexpressions to
 remember.
@@ -103,15 +101,15 @@ should be stored by \fBTcl_RegExpGetInfo\fR.
 \fBTcl_RegExpMatch\fR determines whether its \fIpattern\fR argument
 matches \fIregexp\fR, where \fIregexp\fR is interpreted
 as a regular expression using the rules in the \fBre_syntax\fR
-reference page. 
+reference page.
 If there is a match then \fBTcl_RegExpMatch\fR returns 1.
 If there is no match then \fBTcl_RegExpMatch\fR returns 0.
 If an error occurs in the matching process (e.g. \fIpattern\fR
 is not a valid regular expression) then \fBTcl_RegExpMatch\fR
 returns \-1 and leaves an error message in the interpreter result.
 \fBTcl_RegExpMatchObj\fR is similar to \fBTcl_RegExpMatch\fR except it
-operates on the Tcl objects \fItextObj\fR and \fIpatObj\fR instead of
-UTF strings. 
+operates on the Tcl values \fItextObj\fR and \fIpatObj\fR instead of
+UTF strings.
 \fBTcl_RegExpMatchObj\fR is generally more efficient than
 \fBTcl_RegExpMatch\fR, so it is the preferred interface.
 .PP
@@ -124,7 +122,7 @@ used in subsequent calls to \fBTcl_RegExpExec\fR or \fBTcl_RegExpRange\fR.
 If an error occurs while compiling the regular expression then
 \fBTcl_RegExpCompile\fR returns NULL and leaves an error message
 in the interpreter result.
-Note:  the return value from \fBTcl_RegExpCompile\fR is only valid
+Note that the return value from \fBTcl_RegExpCompile\fR is only valid
 up to the next call to \fBTcl_RegExpCompile\fR;  it is not safe to
 retain these values for long periods of time.
 .PP
@@ -164,18 +162,18 @@ If there is no range corresponding to \fIindex\fR then NULL
 is stored in \fI*startPtr\fR and \fI*endPtr\fR.
 .PP
 \fBTcl_GetRegExpFromObj\fR, \fBTcl_RegExpExecObj\fR, and
-\fBTcl_RegExpGetInfo\fR are object interfaces that provide the most
+\fBTcl_RegExpGetInfo\fR are value interfaces that provide the most
 direct control of Henry Spencer's regular expression library.  For
 users that need to modify compilation and execution options directly,
 it is recommended that you use these interfaces instead of calling the
 internal regexp functions.  These interfaces handle the details of UTF
 to Unicode translations as well as providing improved performance
-through caching in the pattern and string objects.
+through caching in the pattern and string values.
 .PP
 \fBTcl_GetRegExpFromObj\fR attempts to return a compiled regular
-expression from the \fIpatObj\fR.  If the object does not already
+expression from the \fIpatObj\fR.  If the value does not already
 contain a compiled regular expression it will attempt to create one
-from the string in the object and assign it to the internal
+from the string in the value and assign it to the internal
 representation of the \fIpatObj\fR.  The return value of this function
 is of type \fBTcl_RegExp\fR.  The return value is a token for this
 compiled form, which can be used in subsequent calls to
@@ -190,6 +188,7 @@ zero or more of the following flags that control the compilation of
 .RS 2
 .TP
 \fBTCL_REG_ADVANCED\fR
+.
 Compile advanced regular expressions
 .PQ ARE s .
 This mode corresponds to
@@ -197,13 +196,15 @@ the normal regular expression syntax accepted by the Tcl \fBregexp\fR and
 \fBregsub\fR commands.
 .TP
 \fBTCL_REG_EXTENDED\fR
+.
 Compile extended regular expressions
 .PQ ERE s .
 This mode corresponds
 to the regular expression syntax recognized by Tcl 8.0 and earlier
-versions. 
+versions.
 .TP
 \fBTCL_REG_BASIC\fR
+.
 Compile basic regular expressions
 .PQ BRE s .
 This mode corresponds
@@ -212,18 +213,22 @@ like \fBsed\fR and \fBgrep\fR.  This is the default if no flags are
 specified.
 .TP
 \fBTCL_REG_EXPANDED\fR
+.
 Compile the regular expression (basic, extended, or advanced) using an
 expanded syntax that allows comments and whitespace.  This mode causes
 non-backslashed non-bracket-expression white
 space and #-to-end-of-line comments to be ignored.
 .TP
 \fBTCL_REG_QUOTE\fR
+.
 Compile a literal string, with all characters treated as ordinary characters.
 .TP
 \fBTCL_REG_NOCASE\fR
+.
 Compile for matching that ignores upper/lower case distinctions.
 .TP
 \fBTCL_REG_NEWLINE\fR
+.
 Compile for newline-sensitive matching.  By default, newline is a
 completely ordinary character with no special meaning in either
 regular expressions or strings.  With this flag,
@@ -241,6 +246,7 @@ an empty string before any newline in addition to its normal function.
 \fBREG_NLANCH\fR.
 .TP
 \fBTCL_REG_NLSTOP\fR
+.
 Compile for partial newline-sensitive matching,
 with the behavior of
 .QW [^
@@ -257,6 +263,7 @@ bracket expressions and
 never match newline.
 .TP
 \fBTCL_REG_NLANCH\fR
+.
 Compile for inverse partial newline-sensitive matching,
 with the behavior of
 .QW ^
@@ -277,12 +284,14 @@ matches
 an empty string before any newline in addition to its normal function.
 .TP
 \fBTCL_REG_NOSUB\fR
+.
 Compile for matching that reports only success or failure,
 not what was matched.  This reduces compile overhead and may improve
 performance.  Subsequent calls to \fBTcl_RegExpGetInfo\fR or
 \fBTcl_RegExpRange\fR will not report any match information.
 .TP
 \fBTCL_REG_CANMATCH\fR
+.
 Compile for matching that reports the potential to complete a partial
 match given more text (see below).
 .RE
@@ -312,6 +321,7 @@ zero or more of the following flags:
 .RS 2
 .TP
 \fBTCL_REG_NOTBOL\fR
+.
 The starting character will not be treated as the beginning of a
 line or the beginning of the string, so
 .QW ^
@@ -321,6 +331,7 @@ Note that this flag has no effect on how
 matches.
 .TP
 \fBTCL_REG_NOTEOL\fR
+.
 The last character in the string will not be treated as the end of a
 line or the end of the string, so
 .QW $
@@ -336,11 +347,11 @@ performed with a given regular expression \fIregexp\fR.  The
 defined as follows:
 .PP
 .CS
-typedef struct Tcl_RegExpInfo {
-        int \fInsubs\fR;
-        Tcl_RegExpIndices *\fImatches\fR;
-        long \fIextendStart\fR;
-} Tcl_RegExpInfo;
+typedef struct {
+    Tcl_Size \fInsubs\fR;
+    Tcl_RegExpIndices *\fImatches\fR;
+    Tcl_Size \fIextendStart\fR;
+} \fBTcl_RegExpInfo\fR;
 .CE
 .PP
 The \fInsubs\fR field contains a count of the number of parenthesized
@@ -354,10 +365,10 @@ appear in the pattern.  Each element is a structure that is defined as
 follows:
 .PP
 .CS
-typedef struct Tcl_RegExpIndices {
-        long \fIstart\fR;
-        long \fIend\fR;
-} Tcl_RegExpIndices;
+typedef struct {
+    Tcl_Size \fIstart\fR;
+    Tcl_Size \fIend\fR;
+} \fBTcl_RegExpIndices\fR;
 .CE
 .PP
 The \fIstart\fR and \fIend\fR values are Unicode character indices
@@ -375,9 +386,26 @@ character in the string where a match could occur.  If a match was
 found, this will be the same as the beginning of the current match.
 If no match was found, then it indicates the earliest point at which a
 match might occur if additional text is appended to the string.  If it
-is no match is possible even with further text, this field will be set 
+is no match is possible even with further text, this field will be set
 to \-1.
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+The \fItextObj\fR and \fIpatObj\fR arguments to \fBTcl_RegExpMatchObj\fR must
+have reference counts of at least 1.  Note however that this function may set
+the interpreter result; neither argument should be the direct interpreter
+result without an additional reference being taken.
+.PP
+The \fIpatObj\fR argument to \fBTcl_GetRegExpFromObj\fR must have a reference
+count of at least 1.  Note however that this function may set the interpreter
+result; the argument should not be the direct interpreter result without an
+additional reference being taken.
+.PP
+The \fItextObj\fR argument to \fBTcl_RegExpExecObj\fR must have a reference
+count of at least 1.  Note however that this function may set the interpreter
+result; the argument should not be the direct interpreter result without an
+additional reference being taken.
 .SH "SEE ALSO"
 re_syntax(n)
 .SH KEYWORDS
-match, pattern, regular expression, string, subexpression, Tcl_RegExpIndices, Tcl_RegExpInfo
+match, pattern, regular expression, string, subexpression,
+Tcl_RegExpIndices, Tcl_RegExpInfo
diff --git a/doc/SaveResult.3 b/doc/SaveInterpState.3
index 0a2ee51..619ff0b 100644
--- a/doc/SaveResult.3
+++ b/doc/SaveInterpState.3
@@ -1,15 +1,15 @@
 '\"
-'\" Copyright (c) 1997 by Sun Microsystems, Inc.
+'\" Copyright (c) 1997 Sun Microsystems, Inc.
 '\" Contributions from Don Porter, NIST, 2004. (not subject to US copyright)
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.TH Tcl_SaveResult 3 8.1 Tcl "Tcl Library Procedures"
+.TH Tcl_SaveInterpState 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_SaveInterpState, Tcl_RestoreInterpState, Tcl_DiscardInterpState, Tcl_SaveResult, Tcl_RestoreResult, Tcl_DiscardResult \- save and restore an interpreter's state
+Tcl_SaveInterpState, Tcl_RestoreInterpState, Tcl_DiscardInterpState \- save and restore an interpreter's state
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -21,12 +21,7 @@ int
 \fBTcl_RestoreInterpState\fR(\fIinterp, state\fR)
 .sp
 \fBTcl_DiscardInterpState\fR(\fIstate\fR)
-.sp
-\fBTcl_SaveResult\fR(\fIinterp, savedPtr\fR)
-.sp
-\fBTcl_RestoreResult\fR(\fIinterp, savedPtr\fR)
-.sp
-\fBTcl_DiscardResult\fR(\fIsavedPtr\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_InterpState savedPtr
 .AP Tcl_Interp *interp in
@@ -35,42 +30,21 @@ Interpreter for which state should be saved.
 Return code value to save as part of interpreter state.
 .AP Tcl_InterpState state in
 Saved state token to be restored or discarded.
-.AP Tcl_SavedResult *savedPtr in
-Pointer to location where interpreter result should be saved or restored.
 .BE
-
 .SH DESCRIPTION
 .PP
-.VS 8.5
 These routines allows a C procedure to take a snapshot of the current
 state of an interpreter so that it can be restored after a call
 to \fBTcl_Eval\fR or some other routine that modifies the interpreter
-state.  There are two triplets of routines meant to work together.
+state.
 .PP
-The first triplet stores the snapshot of interpreter state in
+\fBTcl_SaveInterpState\fR stores a snapshot of the interpreter state in
 an opaque token returned by \fBTcl_SaveInterpState\fR.  That token
 value may then be passed back to one of \fBTcl_RestoreInterpState\fR
 or \fBTcl_DiscardInterpState\fR, depending on whether the interp
 state is to be restored.  So long as one of the latter two routines
 is called, Tcl will take care of memory management.
 .PP
-The second triplet stores the snapshot of only the interpreter
-result (not its complete state) in memory allocated by the caller.
-These routines are passed a pointer to \fBTcl_SavedResult\fR
-that is used to store enough information to restore the interpreter result.
-\fBTcl_SavedResult\fR can be allocated on the stack of the calling
-procedure.  These routines do not save the state of any error
-information in the interpreter (e.g. the \fB\-errorcode\fR or
-\fB\-errorinfo\fR return options, when an error is in progress).
-.PP
-Because the routines \fBTcl_SaveInterpState\fR,
-\fBTcl_RestoreInterpState\fR, and \fBTcl_DiscardInterpState\fR perform
-a superset of the functions provided by the other routines,
-any new code should only make use of the more powerful routines.
-The older, weaker routines \fBTcl_SaveResult\fR, \fBTcl_RestoreResult\fR,
-and \fBTcl_DiscardResult\fR continue to exist only for the sake
-of existing programs that may already be using them.
-.PP
 \fBTcl_SaveInterpState\fR takes a snapshot of those portions of
 interpreter state that make up the full result of script evaluation.
 This include the interpreter result, the return code (passed in
@@ -78,8 +52,7 @@ as the \fIstatus\fR argument, and any return options, including
 \fB\-errorinfo\fR and \fB\-errorcode\fR when an error is in progress.
 This snapshot is returned as an opaque token of type \fBTcl_InterpState\fR.
 The call to \fBTcl_SaveInterpState\fR does not itself change the
-state of the interpreter.  Unlike \fBTcl_SaveResult\fR, it does
-not reset the interpreter.
+state of the interpreter.
 .PP
 \fBTcl_RestoreInterpState\fR accepts a \fBTcl_InterpState\fR token
 previously returned by \fBTcl_SaveInterpState\fR and restores the
@@ -97,27 +70,5 @@ must eventually be passed to either \fBTcl_RestoreInterpState\fR
 or \fBTcl_DiscardInterpState\fR to avoid a memory leak.  Once
 the \fBTcl_InterpState\fR token is passed to one of them, the
 token is no longer valid and should not be used anymore.
-.VE 8.5
-.PP
-\fBTcl_SaveResult\fR moves the string and object results
-of \fIinterp\fR into the location specified by \fIstatePtr\fR.
-\fBTcl_SaveResult\fR clears the result for \fIinterp\fR and
-leaves the result in its normal empty initialized state.
-.PP
-\fBTcl_RestoreResult\fR moves the string and object results from
-\fIstatePtr\fR back into \fIinterp\fR.  Any result or error that was
-already in the interpreter will be cleared.  The \fIstatePtr\fR is left
-in an uninitialized state and cannot be used until another call to
-\fBTcl_SaveResult\fR.
-.PP
-\fBTcl_DiscardResult\fR releases the saved interpreter state
-stored at \fBstatePtr\fR.  The state structure is left in an
-uninitialized state and cannot be used until another call to
-\fBTcl_SaveResult\fR.
-.PP
-Once \fBTcl_SaveResult\fR is called to save the interpreter
-result, either \fBTcl_RestoreResult\fR or
-\fBTcl_DiscardResult\fR must be called to properly clean up the
-memory associated with the saved state.
 .SH KEYWORDS
 result, state, interp
diff --git a/doc/SetChanErr.3 b/doc/SetChanErr.3
index aded11e..e7593b7 100644
--- a/doc/SetChanErr.3
+++ b/doc/SetChanErr.3
@@ -14,18 +14,14 @@ Tcl_SetChannelError, Tcl_SetChannelErrorInterp, Tcl_GetChannelError, Tcl_GetChan
 .nf
 \fB#include <tcl.h>\fR
 .sp
-void
 \fBTcl_SetChannelError\fR(\fIchan, msg\fR)
 .sp
-void
 \fBTcl_SetChannelErrorInterp\fR(\fIinterp, msg\fR)
 .sp
-void
 \fBTcl_GetChannelError\fR(\fIchan, msgPtr\fR)
 .sp
-void
 \fBTcl_GetChannelErrorInterp\fR(\fIinterp, msgPtr\fR)
-.sp
+.fi
 .SH ARGUMENTS
 .AS Tcl_Channel chan
 .AP Tcl_Channel chan in
@@ -33,121 +29,113 @@ Refers to the Tcl channel whose bypass area is accessed.
 .AP Tcl_Interp* interp in
 Refers to the Tcl interpreter whose bypass area is accessed.
 .AP Tcl_Obj* msg in
-Error message put into a bypass area.  A list of return options and
-values, followed by a string message.  Both message and the
-option/value information are optional.
+Error message put into a bypass area. A list of return options and values,
+followed by a string message. Both message and the option/value information
+are optional. This \fImust\fR be a well-formed list.
 .AP Tcl_Obj** msgPtr out
-Reference to a place where the message stored in the accessed bypass
-area can be stored in.
+Reference to a place where the message stored in the accessed bypass area can
+be stored in.
 .BE
 .SH DESCRIPTION
 .PP
-The current definition of a Tcl channel driver does not permit the
-direct return of arbitrary error messages, except for the setting and
-retrieval of channel options. All other functions are restricted to
-POSIX error codes.
-.PP
-The functions described here overcome this limitation. Channel drivers
-are allowed to use \fBTcl_SetChannelError\fR and
-\fBTcl_SetChannelErrorInterp\fR to place arbitrary error messages in
-\fBbypass areas\fI defined for channels and interpreters. And the
-generic I/O layer uses \fBTcl_GetChannelError\fR and
-\fBTcl_GetChannelErrorInterp\fR to look for messages in the bypass
-areas and arrange for their return as errors. The posix error codes
-set by a driver are used now if and only if no messages are present.
+The standard definition of a Tcl channel driver does not permit the direct
+return of arbitrary error messages, except for the setting and retrieval of
+channel options. All other functions are restricted to POSIX error codes.
 .PP
-\fBTcl_SetChannelError\fR stores error information in the bypass area
-of the specified channel. The number of references to the \fBmsg\fR
-object goes up by one. Previously stored information will be
-discarded, by releasing the reference held by the channel. The channel
-reference must not be NULL.
+The functions described here overcome this limitation. Channel drivers are
+allowed to use \fBTcl_SetChannelError\fR and \fBTcl_SetChannelErrorInterp\fR
+to place arbitrary error messages in \fIbypass areas\fR defined for channels
+and interpreters. And the generic I/O layer uses \fBTcl_GetChannelError\fR and
+\fBTcl_GetChannelErrorInterp\fR to look for messages in the bypass areas and
+arrange for their return as errors. The POSIX error codes set by a driver are
+used now if and only if no messages are present.
 .PP
-\fBTcl_SetChannelErrorInterp\fR stores error information in the bypass
-area of the specified interpreter. The number of references to the
-\fBmsg\fR object goes up by one. Previously stored information will be
-discarded, by releasing the reference held by the interpreter. The
-interpreter reference must not be NULL.
+\fBTcl_SetChannelError\fR stores error information in the bypass area of the
+specified channel. The number of references to the \fBmsg\fR value goes up by
+one. Previously stored information will be discarded, by releasing the
+reference held by the channel. The channel reference must not be NULL.
 .PP
-\fBTcl_GetChannelError\fR places either the error message held in the
-bypass area of the specified channel into \fImsgPtr\fR, or NULL; and
-resets the bypass. I.e. after an invocation all following invocations
-will return NULL, until an intervening invocation of
-\fBTcl_SetChannelError\fR with a non-NULL message. The \fImsgPtr\fR
-must not be NULL. The reference count of the message is not touched.
-The reference previously held by the channel is now held by the caller
-of the function and it is its responsibility to release that reference
-when it is done with the object.
+\fBTcl_SetChannelErrorInterp\fR stores error information in the bypass area of
+the specified interpreter. The number of references to the \fBmsg\fR value
+goes up by one. Previously stored information will be discarded, by releasing
+the reference held by the interpreter. The interpreter reference must not be
+NULL.
 .PP
-\fBTcl_GetChannelErrorInterp\fR places either the error message held
-in the bypass area of the specified interpreter into \fImsgPtr\fR, or
-NULL; and resets the bypass. I.e. after an invocation all following
-invocations will return NULL, until an intervening invocation of
-\fBTcl_SetChannelErrorInterp\fR with a non-NULL message. The
-\fImsgPtr\fR must not be NULL. The reference count of the message is
-not touched.  The reference previously held by the interpreter is now
-held by the caller of the function and it is its responsibility to
-release that reference when it is done with the object.
+\fBTcl_GetChannelError\fR places either the error message held in the bypass
+area of the specified channel into \fImsgPtr\fR, or NULL; and resets the
+bypass, that is, after an invocation all following invocations will return
+NULL, until an intervening invocation of \fBTcl_SetChannelError\fR with a
+non-NULL message. The \fImsgPtr\fR must not be NULL. The reference count of
+the message is not touched.  The reference previously held by the channel is
+now held by the caller of the function and it is its responsibility to release
+that reference when it is done with the value.
 .PP
-Which functions of a channel driver are allowed to use which bypass
-function is listed below, as is which functions of the public channel
-API may leave a messages in the bypass areas.
+\fBTcl_GetChannelErrorInterp\fR places either the error message held in the
+bypass area of the specified interpreter into \fImsgPtr\fR, or NULL; and
+resets the bypass, that is, after an invocation all following invocations will
+return NULL, until an intervening invocation of
+\fBTcl_SetChannelErrorInterp\fR with a non-NULL message. The \fImsgPtr\fR must
+not be NULL. The reference count of the message is not touched.  The reference
+previously held by the interpreter is now held by the caller of the function
+and it is its responsibility to release that reference when it is done with
+the value.
 .PP
-.IP \fBTcl_DriverCloseProc\fR
-May use \fBTcl_SetChannelErrorInterp\fR, and only this function.
+Which functions of a channel driver are allowed to use which bypass function
+is listed below, as is which functions of the public channel API may leave a
+messages in the bypass areas.
 .IP \fBTcl_DriverInputProc\fR
 May use \fBTcl_SetChannelError\fR, and only this function.
 .IP \fBTcl_DriverOutputProc\fR
 May use \fBTcl_SetChannelError\fR, and only this function.
-.IP \fBTcl_DriverSeekProc\fR
-May use \fBTcl_SetChannelError\fR, and only this function.
 .IP \fBTcl_DriverWideSeekProc\fR
 May use \fBTcl_SetChannelError\fR, and only this function.
 .IP \fBTcl_DriverSetOptionProc\fR
-Has already the ability to pass arbitrary error messages. Must
-\fBnot\fR use any of the new functions.
+Has already the ability to pass arbitrary error messages. Must \fInot\fR use
+any of the new functions.
 .IP \fBTcl_DriverGetOptionProc\fR
 Has already the ability to pass arbitrary error messages. Must
-\fBnot\fR use any of the new functions.
+\fInot\fR use any of the new functions.
 .IP \fBTcl_DriverWatchProc\fR
-Must \fBnot\fR use any of the new functions. Is internally called and
-has no ability to return any type of error whatsoever.
+Must \fInot\fR use any of the new functions. Is internally called and has no
+ability to return any type of error whatsoever.
 .IP \fBTcl_DriverBlockModeProc\fR
 May use \fBTcl_SetChannelError\fR, and only this function.
 .IP \fBTcl_DriverGetHandleProc\fR
-Must \fBnot\fR use any of the new functions. It is only a low-level
-function, and not used by Tcl commands.
+Must \fInot\fR use any of the new functions. It is only a low-level function,
+and not used by Tcl commands.
 .IP \fBTcl_DriverHandlerProc\fR
-Must \fBnot\fR use any of the new functions. Is internally called and
-has no ability to return any type of error whatsoever.
-.PP
-Given the information above the following public functions of the Tcl
-C API are affected by these changes. I.e. when these functions are
-called the channel may now contain a stored arbitrary error message
-requiring processing by the caller.
+Must \fInot\fR use any of the new functions. Is internally called and has no
+ability to return any type of error whatsoever.
 .PP
-.IP \fBTcl_StackChannel\fR
-.IP \fBTcl_Seek\fR
-.IP \fBTcl_Tell\fR
-.IP \fBTcl_ReadRaw\fR
-.IP \fBTcl_Read\fR
-.IP \fBTcl_ReadChars\fR
-.IP \fBTcl_Gets\fR
-.IP \fBTcl_GetsObj\fR
-.IP \fBTcl_Flush\fR
-.IP \fBTcl_WriteRaw\fR
-.IP \fBTcl_WriteObj\fR
-.IP \fBTcl_Write\fR
-.IP \fBTcl_WriteChars\fR
+Given the information above the following public functions of the Tcl C API
+are affected by these changes; when these functions are called, the channel
+may now contain a stored arbitrary error message requiring processing by the
+caller.
+.DS
+.ta 1.9i 4i
+\fBTcl_Flush\fR	\fBTcl_GetsObj\fR	\fBTcl_Gets\fR
+\fBTcl_ReadChars\fR	\fBTcl_ReadRaw\fR	\fBTcl_Read\fR
+\fBTcl_Seek\fR	\fBTcl_StackChannel\fR	\fBTcl_Tell\fR
+\fBTcl_WriteChars\fR	\fBTcl_WriteObj\fR	\fBTcl_WriteRaw\fR
+\fBTcl_Write\fR
+.DE
 .PP
-All other API functions are unchanged. Especially the functions below
+All other API functions are unchanged. In particular, the functions below
 leave all their error information in the interpreter result.
+.DS
+.ta 1.9i 4i
+\fBTcl_Close\fR	\fBTcl_UnstackChannel\fR	\fBTcl_UnregisterChannel\fR
+.DE
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+The \fImsg\fR argument to \fBTcl_SetChannelError\fR and
+\fBTcl_SetChannelErrorInterp\fR, if not NULL, may have any reference count;
+these functions will copy.
 .PP
-.IP \fBTcl_Close\fR
-.IP \fBTcl_UnregisterChannel\fR
-.IP \fBTcl_UnstackChannel\fR
-
+\fBTcl_GetChannelError\fR and \fBTcl_GetChannelErrorInterp\fR write a value
+reference into their \fImsgPtr\fR, but do not manipulate its reference count.
+The reference count will be at least 1 (unless the reference is NULL).
 .SH "SEE ALSO"
 Tcl_Close(3), Tcl_OpenFileChannel(3), Tcl_SetErrno(3)
-
 .SH KEYWORDS
 channel driver, error messages, channel type
diff --git a/doc/SetErrno.3 b/doc/SetErrno.3
index 21648b1..84d7553 100644
--- a/doc/SetErrno.3
+++ b/doc/SetErrno.3
@@ -3,12 +3,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_SetErrno 3 8.3 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_SetErrno, Tcl_GetErrno, Tcl_ErrnoId, Tcl_ErrnoMsg \- manipulate errno to store and retrieve error codes
+Tcl_SetErrno, Tcl_GetErrno, Tcl_ErrnoId, Tcl_ErrnoMsg, Tcl_WinConvertError \- manipulate errno to store and retrieve error codes
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -25,10 +25,16 @@ const char *
 const char *
 \fBTcl_ErrnoMsg\fR(\fIerrorCode\fR)
 .sp
+void
+\fBTcl_WinConvertError\fR(\fIwinErrorCode\fR)
+.fi
 .SH ARGUMENTS
 .AS int errorCode
 .AP int errorCode in
 A POSIX error code such as \fBENOENT\fR.
+.AS unsigned int winErrorCode in
+.AP DWORD winErrorCode in
+A Windows or Winsock error code such as \fBERROR_FILE_NOT_FOUND\fR.
 .BE
 
 .SH DESCRIPTION
@@ -61,6 +67,9 @@ that corresponds to the value of its
 typically the value returned by \fBTcl_GetErrno\fR.
 The strings returned by these functions are
 statically allocated and the caller must not free or modify them.
+.PP
+\fBTcl_WinConvertError\fR (Windows only) maps the passed Windows or Winsock
+error code to a POSIX error and stores it in \fBerrno\fR.
 
 .SH KEYWORDS
 errno, error code, global variables
diff --git a/doc/SetRecLmt.3 b/doc/SetRecLmt.3
index 904d4ab..b2d1705 100644
--- a/doc/SetRecLmt.3
+++ b/doc/SetRecLmt.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_SetRecursionLimit 3 7.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -14,14 +14,15 @@ Tcl_SetRecursionLimit \- set maximum allowable nesting depth in interpreter
 .nf
 \fB#include <tcl.h>\fR
 .sp
-int
+Tcl_Size
 \fBTcl_SetRecursionLimit\fR(\fIinterp, depth\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp *interp
 .AP Tcl_Interp *interp in
 Interpreter whose recursion limit is to be set.
 Must be greater than zero.
-.AP int depth in
+.AP Tcl_Size depth in
 New limit for nested calls to \fBTcl_Eval\fR for \fIinterp\fR.
 .BE
 
@@ -29,7 +30,7 @@ New limit for nested calls to \fBTcl_Eval\fR for \fIinterp\fR.
 .PP
 At any given time Tcl enforces a limit on the number of recursive
 calls that may be active for \fBTcl_Eval\fR and related procedures
-such as \fBTcl_GlobalEval\fR.
+such as \fBTcl_EvalEx\fR.
 Any call to \fBTcl_Eval\fR that exceeds this depth is aborted with
 an error.
 By default the recursion limit is 1000.
diff --git a/doc/SetResult.3 b/doc/SetResult.3
index 4bb9101..eb2a783 100644
--- a/doc/SetResult.3
+++ b/doc/SetResult.3
@@ -4,12 +4,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-.TH Tcl_SetResult 3 8.0 Tcl "Tcl Library Procedures"
+'\"
+.TH Tcl_SetResult 3 9.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_SetObjResult, Tcl_GetObjResult, Tcl_SetResult, Tcl_GetStringResult, Tcl_AppendResult, Tcl_AppendResultVA, Tcl_AppendElement, Tcl_ResetResult, Tcl_FreeResult \- manipulate Tcl result
+Tcl_SetObjResult, Tcl_GetObjResult, Tcl_SetResult, Tcl_GetStringResult, Tcl_AppendResult, Tcl_AppendElement, Tcl_ResetResult, Tcl_TransferResult \- manipulate Tcl result
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -24,65 +24,67 @@ Tcl_Obj *
 const char *
 \fBTcl_GetStringResult\fR(\fIinterp\fR)
 .sp
-\fBTcl_AppendResult\fR(\fIinterp, result, result, ... , \fB(char *) NULL\fR)
-.sp
-\fBTcl_AppendResultVA\fR(\fIinterp, argList\fR)
-.sp
-\fBTcl_AppendElement\fR(\fIinterp, element\fR)
+\fBTcl_AppendResult\fR(\fIinterp, result, result, ... , \fB(char *)NULL\fR)
 .sp
 \fBTcl_ResetResult\fR(\fIinterp\fR)
 .sp
-\fBTcl_FreeResult\fR(\fIinterp\fR)
+\fBTcl_TransferResult\fR(\fIsourceInterp, code, targetInterp\fR)
+.sp
+\fBTcl_AppendElement\fR(\fIinterp, element\fR)
+.fi
 .SH ARGUMENTS
-.AS Tcl_FreeProc freeProc out
+.AS Tcl_FreeProc sourceInterp out
 .AP Tcl_Interp *interp out
 Interpreter whose result is to be modified or read.
 .AP Tcl_Obj *objPtr in
-Object value to become result for \fIinterp\fR.
+Tcl value to become result for \fIinterp\fR.
 .AP char *result in
 String value to become result for \fIinterp\fR or to be
 appended to the existing result.
-.AP char *element in
+.AP "const char" *element in
 String value to append as a list element
 to the existing result of \fIinterp\fR.
 .AP Tcl_FreeProc *freeProc in
 Address of procedure to call to release storage at
 \fIresult\fR, or \fBTCL_STATIC\fR, \fBTCL_DYNAMIC\fR, or
 \fBTCL_VOLATILE\fR.
-.AP va_list argList in
-An argument list which must have been initialized using
-\fBva_start\fR, and cleared using \fBva_end\fR.
+.AP Tcl_Interp *sourceInterp in
+Interpreter that the result and return options should be transferred from.
+.AP Tcl_Interp *targetInterp in
+Interpreter that the result and return options should be transferred to.
+.AP int code in
+Return code value that controls transfer of return options.
 .BE
 .SH DESCRIPTION
 .PP
 The procedures described here are utilities for manipulating the
 result value in a Tcl interpreter.
-The interpreter result may be either a Tcl object or a string.
+The interpreter result may be either a Tcl value or a string.
 For example, \fBTcl_SetObjResult\fR and \fBTcl_SetResult\fR
-set the interpreter result to, respectively, an object and a string.
+set the interpreter result to, respectively, a value and a string.
 Similarly, \fBTcl_GetObjResult\fR and \fBTcl_GetStringResult\fR
-return the interpreter result as an object and as a string.
-The procedures always keep the string and object forms
+return the interpreter result as a value and as a string.
+The procedures always keep the string and value forms
 of the interpreter result consistent.
 For example, if \fBTcl_SetObjResult\fR is called to set
-the result to an object,
+the result to a value,
 then \fBTcl_GetStringResult\fR is called,
-it will return the object's string value.
+it will return the value's string representation.
 .PP
 \fBTcl_SetObjResult\fR
 arranges for \fIobjPtr\fR to be the result for \fIinterp\fR,
 replacing any existing result.
-The result is left pointing to the object
+The result is left pointing to the value
 referenced by \fIobjPtr\fR.
 \fIobjPtr\fR's reference count is incremented
 since there is now a new reference to it from \fIinterp\fR.
-The reference count for any old result object
-is decremented and the old result object is freed if no
+The reference count for any old result value
+is decremented and the old result value is freed if no
 references to it remain.
 .PP
-\fBTcl_GetObjResult\fR returns the result for \fIinterp\fR as an object.
-The object's reference count is not incremented;
-if the caller needs to retain a long-term pointer to the object
+\fBTcl_GetObjResult\fR returns the result for \fIinterp\fR as a value.
+The value's reference count is not incremented;
+if the caller needs to retain a long-term pointer to the value
 they should use \fBTcl_IncrRefCount\fR to increment its reference count
 in order to keep it from being freed too early or accidentally changed.
 .PP
@@ -98,19 +100,19 @@ and \fBTcl_SetResult\fR
 re-initializes \fIinterp\fR's result to point to an empty string.
 .PP
 \fBTcl_GetStringResult\fR returns the result for \fIinterp\fR as a string.
-If the result was set to an object by a \fBTcl_SetObjResult\fR call,
-the object form will be converted to a string and returned.
-If the object's string representation contains null bytes,
+If the result was set to a value by a \fBTcl_SetObjResult\fR call,
+the value form will be converted to a string and returned.
+If the value's string representation contains null bytes,
 this conversion will lose information.
 For this reason, programmers are encouraged to
-write their code to use the new object API procedures
+write their code to use the new value API procedures
 and to call \fBTcl_GetObjResult\fR instead.
 .PP
 \fBTcl_ResetResult\fR clears the result for \fIinterp\fR
 and leaves the result in its normal empty initialized state.
-If the result is an object,
+If the result is a value,
 its reference count is decremented and the result is left
-pointing to an unshared object representing an empty string.
+pointing to an unshared value representing an empty string.
 If the result is a dynamically allocated string, its memory is free*d
 and the result is left as a empty string.
 \fBTcl_ResetResult\fR also clears the error state managed by
@@ -133,16 +135,23 @@ It also manages conversion to and from the \fIresult\fR field of the
 \fIinterp\fR so as to handle backward-compatibility with old-style
 extensions.
 Any number of \fIresult\fR arguments may be passed in a single
-call; the last argument in the list must be a NULL pointer.
+call; the last argument in the list must be (char *)NULL.
 .PP
-\fBTcl_AppendResultVA\fR is the same as \fBTcl_AppendResult\fR except that
-instead of taking a variable number of arguments it takes an argument list.
-.SH "OLD STRING PROCEDURES"
+\fBTcl_TransferResult\fR transfers interpreter state from \fIsourceInterp\fR
+to \fItargetInterp\fR. The two interpreters must have been created in the
+same thread.  If \fIsourceInterp\fR and \fItargetInterp\fR are the same,
+nothing is done. Otherwise, \fBTcl_TransferResult\fR moves the result
+from \fIsourceInterp\fR to \fItargetInterp\fR, and resets the result
+in \fIsourceInterp\fR. It also moves the return options dictionary as
+controlled by the return code value \fIcode\fR in the same manner
+as \fBTcl_GetReturnOptions\fR.
+.SH "DEPRECATED INTERFACES"
+.SS "OLD STRING PROCEDURES"
 .PP
-Use of the following procedures (is deprecated
+Use of the following procedures is deprecated
 since they manipulate the Tcl result as a string.
 Procedures such as \fBTcl_SetObjResult\fR
-that manipulate the result as an object
+that manipulate the result as a value
 can be significantly more efficient.
 .PP
 \fBTcl_AppendElement\fR is similar to \fBTcl_AppendResult\fR in
@@ -164,27 +173,9 @@ single character
 or ends in the characters
 .QW " {" )
 then no space is added.
-.PP
-\fBTcl_FreeResult\fR performs part of the work
-of \fBTcl_ResetResult\fR.
-It frees up the memory associated with \fIinterp\fR's result.
-It also sets \fIinterp->freeProc\fR to zero, but does not
-change \fIinterp->result\fR or clear error state.
-\fBTcl_FreeResult\fR is most commonly used when a procedure
-is about to replace one result value with another.
-.SH "DIRECT ACCESS TO INTERP->RESULT IS DEPRECATED"
-.PP
-It used to be legal for programs to
-directly read and write \fIinterp->result\fR
-to manipulate the interpreter result.
-Direct access to \fIinterp->result\fR is now strongly deprecated
-because it can make the result's string and object forms inconsistent.
-Programs should always read the result
-using the procedures \fBTcl_GetObjResult\fR or \fBTcl_GetStringResult\fR,
-and write the result using \fBTcl_SetObjResult\fR or \fBTcl_SetResult\fR.
 .SH "THE TCL_FREEPROC ARGUMENT TO TCL_SETRESULT"
 .PP
-\fBTcl_SetResult\fR's \fIfreeProc\fR argument specifies how 
+\fBTcl_SetResult\fR's \fIfreeProc\fR argument specifies how
 the Tcl system is to manage the storage for the \fIresult\fR argument.
 If \fBTcl_SetResult\fR or \fBTcl_SetObjResult\fR are called
 at a time when \fIinterp\fR holds a string result,
@@ -213,12 +204,43 @@ This allows applications to use non-standard storage allocators.
 When Tcl no longer needs the storage for the string, it will
 call \fIfreeProc\fR. \fIFreeProc\fR should have arguments and
 result that match the type \fBTcl_FreeProc\fR:
+.PP
 .CS
-typedef void Tcl_FreeProc(char *\fIblockPtr\fR);
+typedef void \fBTcl_FreeProc\fR(
+        void *\fIblockPtr\fR);
 .CE
+.PP
 When \fIfreeProc\fR is called, its \fIblockPtr\fR will be set to
 the value of \fIresult\fR passed to \fBTcl_SetResult\fR.
+
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+The interpreter result is one of the main places that owns references to
+values, along with the bytecode execution stack, argument lists, variables,
+and the list and dictionary collection values.
+.PP
+\fBTcl_SetObjResult\fR takes a value with an arbitrary reference count
+\fI(specifically including zero)\fR and guarantees to increment the reference
+count. If code wishes to continue using the value after setting it as the
+result, it should add its own reference to it with \fBTcl_IncrRefCount\fR.
+.PP
+\fBTcl_GetObjResult\fR returns the current interpreter result value. This will
+have a reference count of at least 1. If the caller wishes to keep the
+interpreter result value, it should increment its reference count.
+.PP
+\fBTcl_GetStringResult\fR does not manipulate reference counts, but the string
+it returns is owned by (and has a lifetime controlled by) the current
+interpreter result value; it should be copied instead of being relied upon to
+persist after the next Tcl API call, as most Tcl operations can modify the
+interpreter result.
+.PP
+\fBTcl_SetResult\fR, \fBTcl_AppendResult\fR,
+\fBTcl_AppendElement\fR, and \fBTcl_ResetResult\fR all modify the interpreter
+result. They may cause the old interpreter result to have its reference count
+decremented and a new interpreter result to be allocated. After they have been
+called, the reference count of the interpreter result is guaranteed to be 1.
 .SH "SEE ALSO"
-Tcl_AddErrorInfo, Tcl_CreateObjCommand, Tcl_SetErrorCode, Tcl_Interp
+Tcl_AddErrorInfo, Tcl_CreateObjCommand, Tcl_SetErrorCode, Tcl_Interp,
+Tcl_GetReturnOptions
 .SH KEYWORDS
-append, command, element, list, object, result, return value, interpreter
+append, command, element, list, value, result, return value, interpreter
diff --git a/doc/SetVar.3 b/doc/SetVar.3
index e0eb51e..c34e55f 100644
--- a/doc/SetVar.3
+++ b/doc/SetVar.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_SetVar 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -43,6 +43,7 @@ int
 .sp
 int
 \fBTcl_UnsetVar2\fR(\fIinterp, name1, name2, flags\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp *newValuePtr
 .AP Tcl_Interp *interp in
@@ -57,7 +58,7 @@ to specify a variable in a particular namespace.
 If non-NULL, gives name of element within array; in this
 case \fIname1\fR must refer to an array variable.
 .AP Tcl_Obj *newValuePtr in
-Points to a Tcl object containing the new value for the variable.
+Points to a Tcl value containing the new value for the variable.
 .AP int flags in
 OR-ed combination of bits providing additional information. See below
 for valid values.
@@ -71,12 +72,12 @@ an array.
 New value for variable, specified as a null-terminated string.
 A copy of this value is stored in the variable.
 .AP Tcl_Obj *part1Ptr in
-Points to a Tcl object containing the variable's name.
+Points to a Tcl value containing the variable's name.
 The name may include a series of \fB::\fR namespace qualifiers
 to specify a variable in a particular namespace.
 May refer to a scalar variable or an element of an array variable.
 .AP Tcl_Obj *part2Ptr in
-If non-NULL, points to an object containing the name of an element
+If non-NULL, points to a value containing the name of an element
 within an array and \fIpart1Ptr\fR must refer to an array variable.
 .BE
 
@@ -86,7 +87,7 @@ These procedures are used to create, modify, read, and delete
 Tcl variables from C code.
 .PP
 \fBTcl_SetVar2Ex\fR, \fBTcl_SetVar\fR, \fBTcl_SetVar2\fR, and
-\fBTcl_ObjSetVar2\fR 
+\fBTcl_ObjSetVar2\fR
 will create a new variable or modify an existing one.
 These procedures set the given variable to the value
 given by \fInewValuePtr\fR or \fInewValue\fR and return a
@@ -168,6 +169,7 @@ options to the procedures.
 It consists of an OR-ed combination of the following bits.
 .TP
 \fBTCL_GLOBAL_ONLY\fR
+.
 Under normal circumstances the procedures look up variables as follows.
 If a procedure call is active in \fIinterp\fR,
 the variable is looked up at the current level of procedure call.
@@ -180,12 +182,14 @@ If both \fBTCL_GLOBAL_ONLY\fR and \fBTCL_NAMESPACE_ONLY\fR are given,
 \fBTCL_GLOBAL_ONLY\fR is ignored.
 .TP
 \fBTCL_NAMESPACE_ONLY\fR
+.
 If this bit is set in \fIflags\fR then the variable
 is looked up only in the current namespace; if a procedure is active
 its variables are ignored, and the global namespace is also ignored unless
 it is the current namespace.
 .TP
 \fBTCL_LEAVE_ERR_MSG\fR
+.
 If an error is returned and this bit is set in \fIflags\fR, then
 an error message will be left in the interpreter's result,
 where it can be retrieved with \fBTcl_GetObjResult\fR
@@ -194,12 +198,14 @@ If this flag bit is not set then no error message is left
 and the interpreter's result will not be modified.
 .TP
 \fBTCL_APPEND_VALUE\fR
+.
 If this bit is set then \fInewValuePtr\fR or \fInewValue\fR is
 appended to the current value instead of replacing it.
 If the variable is currently undefined, then the bit is ignored.
 This bit is only used by the \fBTcl_Set*\fR procedures.
 .TP
 \fBTCL_LIST_ELEMENT\fR
+.
 If this bit is set, then \fInewValue\fR is converted to a valid
 Tcl list element before setting (or appending to) the variable.
 A separator space is appended before the new list element unless
@@ -242,8 +248,29 @@ but the array remains.
 If an array name is specified without an index, then the entire
 array is removed.
 
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+The result of \fBTcl_SetVar2Ex\fR, \fBTcl_ObjSetVar2\fR, \fBTcl_GetVar2Ex\fR,
+and \fBTcl_ObjGetVar2\fR is (if non-NULL) a value with a reference of at least
+1, where that reference is held by the variable that the function has just
+operated upon.
+.PP
+The \fInewValuePtr\fR argument to \fBTcl_SetVar2Ex\fR and \fBTcl_ObjSetVar2\fR
+may be an arbitrary reference count value.  Its reference count is
+incremented on success.  On failure, if its reference count is zero, it is
+decremented and freed so the caller need do nothing with it.
+.PP
+The \fIpart1Ptr\fR argument to \fBTcl_ObjSetVar2\fR and \fBTcl_ObjGetVar2\fR can
+have any reference count.  These functions never modify it.
+.PP
+The \fIpart2Ptr\fR argument to \fBTcl_ObjSetVar2\fR and \fBTcl_ObjGetVar2\fR, if
+non-NULL, should not have a zero reference count as these functions may
+retain a reference to it, particularly when it is used to create an array
+element that did not previously exist, and decrementing the reference count
+later would leave them pointing to a freed Tcl_Obj.
+
 .SH "SEE ALSO"
 Tcl_GetObjResult, Tcl_GetStringResult, Tcl_TraceVar
 
 .SH KEYWORDS
-array, get variable, interpreter, object, scalar, set, unset, variable
+array, get variable, interpreter, scalar, set, unset, value, variable
diff --git a/doc/Signal.3 b/doc/Signal.3
index 70b9d91..a0d7417 100644
--- a/doc/Signal.3
+++ b/doc/Signal.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_SignalId 3 8.3 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -18,7 +18,7 @@ const char *
 .sp
 const char *
 \fBTcl_SignalMsg\fR(\fIsig\fR)
-.sp
+.fi
 .SH ARGUMENTS
 .AS int sig
 .AP int sig in
diff --git a/doc/Sleep.3 b/doc/Sleep.3
index 2d36697..082adb2 100644
--- a/doc/Sleep.3
+++ b/doc/Sleep.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_Sleep 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -15,6 +15,7 @@ Tcl_Sleep \- delay execution for a given number of milliseconds
 \fB#include <tcl.h>\fR
 .sp
 \fBTcl_Sleep\fR(\fIms\fR)
+.fi
 .SH ARGUMENTS
 .AS int ms
 .AP int ms in
diff --git a/doc/SourceRCFile.3 b/doc/SourceRCFile.3
index 0afb66b..3175cd1 100644
--- a/doc/SourceRCFile.3
+++ b/doc/SourceRCFile.3
@@ -1,5 +1,5 @@
 '\"
-'\" Copyright (c) 1998-2000 by Scriptics Corporation.
+'\" Copyright (c) 1998-2000 Scriptics Corporation.
 '\" All rights reserved.
 '\"
 .TH Tcl_SourceRCFile 3 8.3 Tcl "Tcl Library Procedures"
@@ -11,8 +11,8 @@ Tcl_SourceRCFile \- source the Tcl rc file
 .nf
 \fB#include <tcl.h>\fR
 .sp
-void
 \fBTcl_SourceRCFile\fR(\fIinterp\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp *interp
 .AP Tcl_Interp *interp in
diff --git a/doc/SplitList.3 b/doc/SplitList.3
index 0fefc8b..d036ace 100644
--- a/doc/SplitList.3
+++ b/doc/SplitList.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_SplitList 3 8.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -20,32 +20,38 @@ int
 char *
 \fBTcl_Merge\fR(\fIargc, argv\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_ScanElement\fR(\fIsrc, flagsPtr\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_ScanCountedElement\fR(\fIsrc, length, flagsPtr\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_ConvertElement\fR(\fIsrc, dst, flags\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_ConvertCountedElement\fR(\fIsrc, length, dst, flags\fR)
+.fi
 .SH ARGUMENTS
 .AS "const char *const" ***argvPtr out
 .AP Tcl_Interp *interp out
 Interpreter to use for error reporting.  If NULL, then no error message
 is left.
-.AP char *list in
+.AP "const char" *list in
 Pointer to a string with proper list structure.
-.AP int *argcPtr out
+.AP "Tcl_Size \&| int" *argcPtr out
 Filled in with number of elements in \fIlist\fR.
+May be (Tcl_Size *)NULL when not used. If it points to a variable which
+type is not \fBTcl_Size\fR, a compiler warning will be generated.
+If your extensions is compiled with -DTCL_8_API, this function will return
+TCL_ERROR for lists with more than INT_MAX elements (which should
+trigger proper error-handling), otherwise expect it to crash.
 .AP "const char" ***argvPtr out
 \fI*argvPtr\fR will be filled in with the address of an array of
 pointers to the strings that are the extracted elements of \fIlist\fR.
 There will be \fI*argcPtr\fR valid entries in the array, followed by
 a NULL entry.
-.AP int argc in
+.AP Tcl_Size argc in
 Number of elements in \fIargv\fR.
 .AP "const char *const" *argv in
 Array of strings to merge together into a single list.
@@ -55,7 +61,7 @@ String that is to become an element of a list.
 .AP int *flagsPtr in
 Pointer to word to fill in with information about \fIsrc\fR.
 The value of *\fIflagsPtr\fR must be passed to \fBTcl_ConvertElement\fR.
-.AP int length in
+.AP Tcl_Size length in
 Number of bytes in string \fIsrc\fR.
 .AP char *dst in
 Place to copy converted list element.  Must contain enough characters
@@ -65,7 +71,6 @@ Information about \fIsrc\fR. Must be value returned by previous
 call to \fBTcl_ScanElement\fR, possibly OR-ed
 with \fBTCL_DONT_USE_BRACES\fR.
 .BE
-
 .SH DESCRIPTION
 .PP
 These procedures may be used to disassemble and reassemble Tcl lists.
@@ -80,22 +85,27 @@ also holds copies of all the list elements.  It is the caller's
 responsibility to free up all of this storage.
 For example, suppose that you have called \fBTcl_SplitList\fR with
 the following code:
+.PP
 .CS
-int argc, code;
+Tcl_Size argc;
+int code;
 char *string;
 char **argv;
 \&...
-code = Tcl_SplitList(interp, string, &argc, &argv);
+code = \fBTcl_SplitList\fR(interp, string, &argc, &argv);
 .CE
+.PP
 Then you should eventually free the storage with a call like the
 following:
+.PP
 .CS
-Tcl_Free((char *) argv);
+Tcl_Free(argv);
 .CE
 .PP
 \fBTcl_SplitList\fR normally returns \fBTCL_OK\fR, which means the list was
-successfully parsed.
-If there was a syntax error in \fIlist\fR, then \fBTCL_ERROR\fR is returned
+successfully parsed. If \fIsizePtr\fR points to a variable of type
+\fBint\fR and the list contains more than 2**31 key/value pairs, or there was
+a syntax error in \fIlist\fR, then \fBTCL_ERROR\fR is returned
 and the interpreter's result will point to an error message describing the
 problem (if \fIinterp\fR was not NULL).
 If \fBTCL_ERROR\fR is returned then no memory is allocated and \fI*argvPtr\fR
@@ -164,7 +174,6 @@ used to generate a portion of an argument for a Tcl command.
 In this case, surrounding \fIsrc\fR with curly braces would cause
 the command not to be parsed correctly.
 .PP
-.VS 8.5
 By default, \fBTcl_ConvertElement\fR will use quoting in its output
 to be sure the first character of an element is not the hash
 character
@@ -176,12 +185,12 @@ is not necessary.  When the caller can be sure that the element is
 not the first element of a list, it can disable quoting of the leading
 hash character by OR-ing the flag value returned by \fBTcl_ScanElement\fR
 with \fBTCL_DONT_QUOTE_HASH\fR.
-.VE 8.5
 .PP
 \fBTcl_ScanCountedElement\fR and \fBTcl_ConvertCountedElement\fR are
 the same as \fBTcl_ScanElement\fR and \fBTcl_ConvertElement\fR, except
 the length of string \fIsrc\fR is specified by the \fIlength\fR
 argument, and the string may contain embedded nulls.
-
+.SH "SEE ALSO"
+Tcl_ListObjGetElements(3)
 .SH KEYWORDS
 backslash, convert, element, list, merge, split, strings
diff --git a/doc/SplitPath.3 b/doc/SplitPath.3
index 6863b6f..452baff 100644
--- a/doc/SplitPath.3
+++ b/doc/SplitPath.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_SplitPath 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -20,19 +20,25 @@ char *
 .sp
 Tcl_PathType
 \fBTcl_GetPathType\fR(\fIpath\fR)
+.fi
 .SH ARGUMENTS
 .AS "const char *const" ***argvPtr in/out
 .AP "const char" *path in
 File path in a form appropriate for the current platform (see the
 \fBfilename\fR manual entry for acceptable forms for path names).
-.AP int *argcPtr out
+.AP "Tcl_Size \&| int" *argcPtr out
 Filled in with number of path elements in \fIpath\fR.
+May be (Tcl_Size *)NULL when not used. If it points to a variable which
+type is not \fBTcl_Size\fR, a compiler warning will be generated.
+If your extensions is compiled with -DTCL_8_API, argcPtr will be filled
+with -1 for paths with more than INT_MAX elements (which should
+trigger proper error-handling), otherwise expect it to crash.
 .AP "const char" ***argvPtr out
 \fI*argvPtr\fR will be filled in with the address of an array of
 pointers to the strings that are the extracted elements of \fIpath\fR.
 There will be \fI*argcPtr\fR valid entries in the array, followed by
 a NULL entry.
-.AP int argc in
+.AP Tcl_Size argc in
 Number of elements in \fIargv\fR.
 .AP "const char *const" *argv in
 Array of path elements to merge together into a single path.
@@ -43,7 +49,7 @@ A pointer to an initialized \fBTcl_DString\fR to which the result of
 
 .SH DESCRIPTION
 .PP
-These procedures have been superceded by the objectified procedures in
+These procedures have been superseded by the Tcl-value-aware procedures in
 the \fBFileSystem\fR man page, which are more efficient.
 .PP
 These procedures may be used to disassemble and reassemble file
@@ -59,17 +65,20 @@ holds copies of all the path elements.  It is the caller's
 responsibility to free all of this storage.
 For example, suppose that you have called \fBTcl_SplitPath\fR with the
 following code:
+.PP
 .CS
-int argc;
+Tcl_Size argc;
 char *path;
 char **argv;
 \&...
 Tcl_SplitPath(string, &argc, &argv);
 .CE
+.PP
 Then you should eventually free the storage with a call like the
 following:
+.PP
 .CS
-Tcl_Free((char *) argv);
+Tcl_Free(argv);
 .CE
 .PP
 \fBTcl_JoinPath\fR is the inverse of \fBTcl_SplitPath\fR: it takes a
diff --git a/doc/StaticLibrary.3 b/doc/StaticLibrary.3
new file mode 100644
index 0000000..9cad43d
--- /dev/null
+++ b/doc/StaticLibrary.3
@@ -0,0 +1,78 @@
+'\"
+'\" Copyright (c) 1995-1996 Sun Microsystems, Inc.
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH Tcl_StaticLibrary 3 7.5 Tcl "Tcl Library Procedures"
+.so man.macros
+.BS
+.SH NAME
+Tcl_StaticLibrary, Tcl_StaticPackage \- make a statically linked library available via the 'load' command
+.SH SYNOPSIS
+.nf
+\fB#include <tcl.h>\fR
+.sp
+\fBTcl_StaticLibrary\fR(\fIinterp, prefix, initProc, safeInitProc\fR)
+.sp
+\fBTcl_StaticPackage\fR(\fIinterp, prefix, initProc, safeInitProc\fR)
+.fi
+.SH ARGUMENTS
+.AS Tcl_LibraryInitProc *safeInitProc
+.AP Tcl_Interp *interp in
+If not NULL, points to an interpreter into which the library has
+already been incorporated (i.e., the caller has already invoked the
+appropriate initialization procedure).  NULL means the library
+has not yet been incorporated into any interpreter.
+.AP "const char" *prefix in
+Prefix for library initialization function. Normally in titlecase (first
+letter upper-case, all others lower-case), but this is no longer required.
+.AP Tcl_LibraryInitProc *initProc in
+Procedure to invoke to incorporate this library into a trusted
+interpreter.
+.AP Tcl_LibraryInitProc *safeInitProc in
+Procedure to call to incorporate this library into a safe interpreter
+(one that will execute untrusted scripts).  NULL means the library
+cannot be used in safe interpreters.
+.BE
+.SH DESCRIPTION
+.PP
+This procedure may be invoked to announce that a library has been
+linked statically with a Tcl application and, optionally, that it
+has already been incorporated into an interpreter.
+Once \fBTcl_StaticLibrary\fR has been invoked for a library, it
+may be incorporated into interpreters using the \fBload\fR command.
+\fBTcl_StaticLibrary\fR is normally invoked only by the \fBTcl_AppInit\fR
+procedure for the application, not by libraries for themselves
+(\fBTcl_StaticLibrary\fR should only be invoked for statically
+linked libraries, and code in the library itself should not need
+to know whether the library is dynamically loaded or statically linked).
+.PP
+When the \fBload\fR command is used later to incorporate the library into
+an interpreter, one of \fIinitProc\fR and \fIsafeInitProc\fR will
+be invoked, depending on whether the target interpreter is safe
+or not.
+\fIinitProc\fR and \fIsafeInitProc\fR must both match the
+following prototype:
+.PP
+.CS
+typedef int \fBTcl_LibraryInitProc\fR(
+        Tcl_Interp *\fIinterp\fR);
+.CE
+.PP
+The \fIinterp\fR argument identifies the interpreter in which the library
+is to be incorporated.  The initialization procedure must return \fBTCL_OK\fR or
+\fBTCL_ERROR\fR to indicate whether or not it completed successfully; in
+the event of an error it should set the interpreter's result to point to an
+error message.  The result or error from the initialization procedure will
+be returned as the result of the \fBload\fR command that caused the
+initialization procedure to be invoked.
+.PP
+\fBTcl_StaticLibrary\fR was named \fBTcl_StaticPackage\fR in Tcl 8.6 and
+earlier, but the old name is deprecated now.
+.PP
+\fBTcl_StaticLibrary\fR can not be used in stub-enabled extensions.
+.SH KEYWORDS
+initialization procedure, package, static linking
+.SH "SEE ALSO"
+load(n), package(n), Tcl_PkgRequire(3)
diff --git a/doc/StaticPkg.3 b/doc/StaticPkg.3
deleted file mode 100644
index 0b2ad57..0000000
--- a/doc/StaticPkg.3
+++ /dev/null
@@ -1,67 +0,0 @@
-'\"
-'\" Copyright (c) 1995-1996 Sun Microsystems, Inc.
-'\"
-'\" See the file "license.terms" for information on usage and redistribution
-'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-.TH Tcl_StaticPackage 3 7.5 Tcl "Tcl Library Procedures"
-.so man.macros
-.BS
-.SH NAME
-Tcl_StaticPackage \- make a statically linked package available via the 'load' command
-.SH SYNOPSIS
-.nf
-\fB#include <tcl.h>\fR
-.sp
-\fBTcl_StaticPackage\fR(\fIinterp, pkgName, initProc, safeInitProc\fR)
-.SH ARGUMENTS
-.AS Tcl_PackageInitProc *safeInitProc
-.AP Tcl_Interp *interp in
-If not NULL, points to an interpreter into which the package has
-already been loaded (i.e., the caller has already invoked the
-appropriate initialization procedure).  NULL means the package
-has not yet been incorporated into any interpreter.
-.AP "const char" *pkgName in
-Name of the package;  should be properly capitalized (first letter
-upper-case, all others lower-case).
-.AP Tcl_PackageInitProc *initProc in
-Procedure to invoke to incorporate this package into a trusted
-interpreter.
-.AP Tcl_PackageInitProc *safeInitProc in
-Procedure to call to incorporate this package into a safe interpreter
-(one that will execute untrusted scripts).   NULL means the package
-cannot be used in safe interpreters.
-.BE
-
-.SH DESCRIPTION
-.PP
-This procedure may be invoked to announce that a package has been
-linked statically with a Tcl application and, optionally, that it
-has already been loaded into an interpreter.
-Once \fBTcl_StaticPackage\fR has been invoked for a package, it
-may be loaded into interpreters using the \fBload\fR command.
-\fBTcl_StaticPackage\fR is normally invoked only by the \fBTcl_AppInit\fR
-procedure for the application, not by packages for themselves
-(\fBTcl_StaticPackage\fR should only be invoked for statically
-loaded packages, and code in the package itself should not need
-to know whether the package is dynamically or statically loaded).
-.PP
-When the \fBload\fR command is used later to load the package into
-an interpreter, one of \fIinitProc\fR and \fIsafeInitProc\fR will
-be invoked, depending on whether the target interpreter is safe
-or not.
-\fIinitProc\fR and \fIsafeInitProc\fR must both match the
-following prototype:
-.CS
-typedef int Tcl_PackageInitProc(Tcl_Interp *\fIinterp\fR);
-.CE
-The \fIinterp\fR argument identifies the interpreter in which the package
-is to be loaded.  The initialization procedure must return \fBTCL_OK\fR or
-\fBTCL_ERROR\fR to indicate whether or not it completed successfully; in
-the event of an error it should set the interpreter's result to point to an
-error message.  The result or error from the initialization procedure will
-be returned as the result of the \fBload\fR command that caused the
-initialization procedure to be invoked.
-
-.SH KEYWORDS
-initialization procedure, package, static linking
diff --git a/doc/StdChannels.3 b/doc/StdChannels.3
index 651ad7d..e22e326 100644
--- a/doc/StdChannels.3
+++ b/doc/StdChannels.3
@@ -1,9 +1,9 @@
 '\"
-'\" Copyright (c) 2001 by ActiveState Corporation
+'\" Copyright (c) 2001 ActiveState Corporation
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH "Standard Channels" 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -45,8 +45,7 @@ standard channels.  (A channel is not
 if it could not be
 successfully opened; for example, in a Tcl application run as a
 Windows NT service.)
-.TP
-1)
+.IP 1)
 A single standard channel is initialized when it is explicitly
 specified in a call to \fBTcl_SetStdChannel\fR.  The states of the
 other standard channels are unaffected.
@@ -55,17 +54,14 @@ other standard channels are unaffected.
 Missing platform-specific standard channels do not matter here. This
 approach is not available at the script level.
 .RE
-.TP
-2)
+.IP 2)
 All uninitialized standard channels are initialized to
 platform-specific default values:
 .RS
-.TP
-(a)
+.IP (a)
 when open channels are listed with \fBTcl_GetChannelNames\fR (or the
 \fBfile channels\fR script command), or
-.TP
-(b)
+.IP (b)
 when information about any standard channel is requested with a call
 to \fBTcl_GetStdChannel\fR, or with a call to \fBTcl_GetChannel\fR
 which specifies one of the standard names (\fBstdin\fR, \fBstdout\fR
@@ -76,8 +72,7 @@ standard channels are considered as initialized and then immediately
 closed. This means that the first three Tcl channels then opened by
 the application are designated as the Tcl standard channels.
 .RE
-.TP
-3)
+.IP 3)
 All uninitialized standard channels are initialized to
 platform-specific default values when a user-requested channel is
 registered with \fBTcl_RegisterChannel\fR.
diff --git a/doc/StrMatch.3 b/doc/StrMatch.3
index f9c2be3..89b4ae0 100644
--- a/doc/StrMatch.3
+++ b/doc/StrMatch.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_StringMatch 3 8.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -19,6 +19,7 @@ int
 .sp
 int
 \fBTcl_StringCaseMatch\fR(\fIstr\fR, \fIpattern\fR, \fIflags\fR)
+.fi
 .SH ARGUMENTS
 .AS "const char" *pattern
 .AP "const char" *str in
diff --git a/doc/StringObj.3 b/doc/StringObj.3
index 47f597c..df2bcf5 100644
--- a/doc/StringObj.3
+++ b/doc/StringObj.3
@@ -3,12 +3,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_StringObj 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_NewStringObj, Tcl_NewUnicodeObj, Tcl_SetStringObj, Tcl_SetUnicodeObj, Tcl_GetStringFromObj, Tcl_GetString, Tcl_GetUnicodeFromObj, Tcl_GetUnicode, Tcl_GetUniChar, Tcl_GetCharLength, Tcl_GetRange, Tcl_AppendToObj, Tcl_AppendUnicodeToObj, Tcl_AppendObjToObj, Tcl_AppendStringsToObj, Tcl_AppendStringsToObjVA, Tcl_AppendLimitedToObj, Tcl_Format, Tcl_AppendFormatToObj, Tcl_ObjPrintf, Tcl_AppendPrintfToObj, Tcl_SetObjLength, Tcl_AttemptSetObjLength, Tcl_ConcatObj \- manipulate Tcl objects as strings
+Tcl_NewStringObj, Tcl_NewUnicodeObj, Tcl_SetStringObj, Tcl_SetUnicodeObj, Tcl_GetStringFromObj, Tcl_GetString, Tcl_GetUnicodeFromObj, Tcl_GetUnicode, Tcl_GetUniChar, Tcl_GetCharLength, Tcl_GetRange, Tcl_AppendToObj, Tcl_AppendUnicodeToObj, Tcl_AppendObjToObj, Tcl_AppendStringsToObj, Tcl_AppendLimitedToObj, Tcl_Format, Tcl_AppendFormatToObj, Tcl_ObjPrintf, Tcl_AppendPrintfToObj, Tcl_SetObjLength, Tcl_AttemptSetObjLength, Tcl_ConcatObj, Tcl_IsEmpty \- manipulate Tcl values as strings
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -37,10 +37,10 @@ Tcl_UniChar *
 Tcl_UniChar *
 \fBTcl_GetUnicode\fR(\fIobjPtr\fR)
 .sp
-Tcl_UniChar
+int
 \fBTcl_GetUniChar\fR(\fIobjPtr, index\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_GetCharLength\fR(\fIobjPtr\fR)
 .sp
 Tcl_Obj *
@@ -56,11 +56,7 @@ void
 \fBTcl_AppendObjToObj\fR(\fIobjPtr, appendObjPtr\fR)
 .sp
 void
-\fBTcl_AppendStringsToObj\fR(\fIobjPtr, string, string, ... \fB(char *) NULL\fR)
-.sp
-void
-\fBTcl_AppendStringsToObjVA\fR(\fIobjPtr, argList\fR)
-.VS 8.5
+\fBTcl_AppendStringsToObj\fR(\fIobjPtr, string, string, ... \fB(char *)NULL\fR)
 .sp
 void
 \fBTcl_AppendLimitedToObj\fR(\fIobjPtr, bytes, length, limit, ellipsis\fR)
@@ -74,9 +70,8 @@ int
 Tcl_Obj *
 \fBTcl_ObjPrintf\fR(\fIformat, ...\fR)
 .sp
-int
+void
 \fBTcl_AppendPrintfToObj\fR(\fIobjPtr, format, ...\fR)
-.VE 8.5
 .sp
 void
 \fBTcl_SetObjLength\fR(\fIobjPtr, newLength\fR)
@@ -86,100 +81,109 @@ int
 .sp
 Tcl_Obj *
 \fBTcl_ConcatObj\fR(\fIobjc, objv\fR)
+.sp
+int
+\fBTcl_IsEmpty\fR(\fIfIobjPtr\fR)
+.fi
 .SH ARGUMENTS
 .AS "const Tcl_UniChar" *appendObjPtr in/out
 .AP "const char" *bytes in
 Points to the first byte of an array of UTF-8-encoded bytes
-used to set or append to a string object.
+used to set or append to a string value.
 This byte array may contain embedded null characters
 unless \fInumChars\fR is negative.  (Applications needing null bytes
-should represent them as the two-byte sequence \fI\e700\e600\fR, use
+should represent them as the two-byte sequence \fI\e300\e200\fR, use
 \fBTcl_ExternalToUtf\fR to convert, or \fBTcl_NewByteArrayObj\fR if
 the string is a collection of uninterpreted bytes.)
-.AP int length in
+.AP Tcl_Size length in
 The number of bytes to copy from \fIbytes\fR when
-initializing, setting, or appending to a string object.
+initializing, setting, or appending to a string value.
 If negative, all bytes up to the first null are used.
 .AP "const Tcl_UniChar" *unicode in
 Points to the first byte of an array of Unicode characters
-used to set or append to a string object.
+used to set or append to a string value.
 This byte array may contain embedded null characters
 unless \fInumChars\fR is negative.
-.AP int numChars in
+.AP Tcl_Size numChars in
 The number of Unicode characters to copy from \fIunicode\fR when
-initializing, setting, or appending to a string object.
+initializing, setting, or appending to a string value.
 If negative, all characters up to the first null character are used.
-.AP int index in
+.AP Tcl_Size index in
 The index of the Unicode character to return.
-.AP int first in
+.AP Tcl_Size first in
 The index of the first Unicode character in the Unicode range to be
-returned as a new object.
-.AP int last in
+returned as a new value. If negative, behave the same as if the
+value was 0.
+.AP Tcl_Size last in
 The index of the last Unicode character in the Unicode range to be
-returned as a new object.
+returned as a new value. If negative, take all characters up to
+the last one available.
 .AP Tcl_Obj *objPtr in/out
-Points to an object to manipulate.
+A pointer to a value to read, or to an unshared value to modify.
 .AP Tcl_Obj *appendObjPtr in
-The object to append to \fIobjPtr\fR in \fBTcl_AppendObjToObj\fR.
-.AP int *lengthPtr out
-If non-NULL, the location where \fBTcl_GetStringFromObj\fR will store
-the length of an object's string representation.
+The value to append to \fIobjPtr\fR in \fBTcl_AppendObjToObj\fR.
+.AP "Tcl_Size \&| int" *lengthPtr out
+The location where \fBTcl_GetStringFromObj\fR will store the length
+of a value's string representation.
+May be (Tcl_Size *)NULL when not used. If it points to a variable which
+type is not \fBTcl_Size\fR, a compiler warning will be generated.
+If your extensions is compiled with -DTCL_8_API, this function will
+panic for strings with more than INT_MAX bytes/characters, otherwise
+expect it to crash.
 .AP "const char" *string in
 Null-terminated string value to append to \fIobjPtr\fR.
-.AP va_list argList in
-An argument list which must have been initialised using
-\fBva_start\fR, and cleared using \fBva_end\fR.
-.AP int limit in
+.AP Tcl_Size limit in
 Maximum number of bytes to be appended.
 .AP "const char" *ellipsis in
 Suffix to append when the limit leads to string truncation.
-If NULL is passed then the suffix "..." is used.
+If NULL is passed then the suffix
+.QW "..."
+is used.
 .AP "const char" *format in
 Format control string including % conversion specifiers.
-.AP int objc in
+.AP Tcl_Size objc in
 The number of elements to format or concatenate.
 .AP Tcl_Obj *objv[] in
-The array of objects to format or concatenate.
-.AP int newLength in
+The array of values to format or concatenate.
+.AP Tcl_Size newLength in
 New length for the string value of \fIobjPtr\fR, not including the
 final null character.
 .BE
-
 .SH DESCRIPTION
 .PP
-The procedures described in this manual entry allow Tcl objects to
+The procedures described in this manual entry allow Tcl values to
 be manipulated as string values.  They use the internal representation
-of the object to store additional information to make the string
+of the value to store additional information to make the string
 manipulations more efficient.  In particular, they make a series of
 append operations efficient by allocating extra storage space for the
 string so that it does not have to be copied for each append.
 Also, indexing and length computations are optimized because the
 Unicode string representation is calculated and cached as needed.
 When using the \fBTcl_Append*\fR family of functions where the
-interpreter's result is the object being appended to, it is important
+interpreter's result is the value being appended to, it is important
 to call Tcl_ResetResult first to ensure you are not unintentionally
-appending to existing data in the result object.
+appending to existing data in the result value.
 .PP
-\fBTcl_NewStringObj\fR and \fBTcl_SetStringObj\fR create a new object
-or modify an existing object to hold a copy of the string given by
+\fBTcl_NewStringObj\fR and \fBTcl_SetStringObj\fR create a new value
+or modify an existing value to hold a copy of the string given by
 \fIbytes\fR and \fIlength\fR.  \fBTcl_NewUnicodeObj\fR and
-\fBTcl_SetUnicodeObj\fR create a new object or modify an existing
-object to hold a copy of the Unicode string given by \fIunicode\fR and
+\fBTcl_SetUnicodeObj\fR create a new value or modify an existing
+value to hold a copy of the Unicode string given by \fIunicode\fR and
 \fInumChars\fR.  \fBTcl_NewStringObj\fR and \fBTcl_NewUnicodeObj\fR
-return a pointer to a newly created object with reference count zero.
-All four procedures set the object to hold a copy of the specified
+return a pointer to a newly created value with reference count zero.
+All four procedures set the value to hold a copy of the specified
 string.  \fBTcl_SetStringObj\fR and \fBTcl_SetUnicodeObj\fR free any
 old string representation as well as any old internal representation
-of the object.
+of the value.
 .PP
-\fBTcl_GetStringFromObj\fR and \fBTcl_GetString\fR return an object's
+\fBTcl_GetStringFromObj\fR and \fBTcl_GetString\fR return a value's
 string representation.  This is given by the returned byte pointer and
 (for \fBTcl_GetStringFromObj\fR) length, which is stored in
-\fIlengthPtr\fR if it is non-NULL.  If the object's UTF string
+\fIlengthPtr\fR if it is non-NULL.  If the value's UTF string
 representation is invalid (its byte pointer is NULL), the string
-representation is regenerated from the object's internal
+representation is regenerated from the value's internal
 representation.  The storage referenced by the returned byte pointer
-is owned by the object manager.  It is passed back as a writable
+is owned by the value manager.  It is passed back as a writable
 pointer so that extension author creating their own \fBTcl_ObjType\fR
 will be able to modify the string representation within the
 \fBTcl_UpdateStringProc\fR of their \fBTcl_ObjType\fR.  Except for that
@@ -195,45 +199,51 @@ The procedure \fBTcl_GetString\fR is used in the common case
 where the caller does not need the length of the string
 representation.
 .PP
-\fBTcl_GetUnicodeFromObj\fR and \fBTcl_GetUnicode\fR return an object's
+\fBTcl_GetUnicodeFromObj\fR and \fBTcl_GetUnicode\fR return a value's
 value as a Unicode string.  This is given by the returned pointer and
 (for \fBTcl_GetUnicodeFromObj\fR) length, which is stored in
 \fIlengthPtr\fR if it is non-NULL.  The storage referenced by the returned
-byte pointer is owned by the object manager and should not be modified by
+byte pointer is owned by the value manager and should not be modified by
 the caller.  The procedure \fBTcl_GetUnicode\fR is used in the common case
 where the caller does not need the length of the unicode string
 representation.
 .PP
 \fBTcl_GetUniChar\fR returns the \fIindex\fR'th character in the
-object's Unicode representation.
+value's Unicode representation. If the index is out of range
+it returns -1;
 .PP
-\fBTcl_GetRange\fR returns a newly created object comprised of the
+\fBTcl_GetRange\fR returns a newly created value comprised of the
 characters between \fIfirst\fR and \fIlast\fR (inclusive) in the
-object's Unicode representation.  If the object's Unicode
-representation is invalid, the Unicode representation is regenerated
-from the object's string representation.
+value's Unicode or byte-array representation.  If the value is not
+a byte-array and the values Unicode representation is invalid, the
+Unicode representation is regenerated from the value's string
+representation.  If \fIfirst\fR is negative, then the returned
+string starts at the beginning of the value. If \fIlast\fR is
+negative, then the returned string ends at the end of the value.
 .PP
 \fBTcl_GetCharLength\fR returns the number of characters (as opposed
-to bytes) in the string object.
+to bytes) in the string value.
 .PP
 \fBTcl_AppendToObj\fR appends the data given by \fIbytes\fR and
-\fIlength\fR to the string representation of the object specified by
-\fIobjPtr\fR.  If the object has an invalid string representation,
-then an attempt is made to convert \fIbytes\fR is to the Unicode
+\fIlength\fR to the string representation of the value specified by
+\fIobjPtr\fR.  If the value has an invalid string representation,
+then an attempt is made to convert \fIbytes\fR to the Unicode
 format.  If the conversion is successful, then the converted form of
-\fIbytes\fR is appended to the object's Unicode representation.
-Otherwise, the object's Unicode representation is invalidated and
+\fIbytes\fR is appended to the value's Unicode representation.
+Otherwise, the value's Unicode representation is invalidated and
 converted to the UTF format, and \fIbytes\fR is appended to the
-object's new string representation.
+value's new string representation.
+Eventually buffer growth is done by large allocations to optimize
+multiple calls.
 .PP
 \fBTcl_AppendUnicodeToObj\fR appends the Unicode string given by
-\fIunicode\fR and \fInumChars\fR to the object specified by
-\fIobjPtr\fR.  If the object has an invalid Unicode representation,
+\fIunicode\fR and \fInumChars\fR to the value specified by
+\fIobjPtr\fR.  If the value has an invalid Unicode representation,
 then \fIunicode\fR is converted to the UTF format and appended to the
-object's string representation.  Appends are optimized to handle
-repeated appends relatively efficiently (it overallocates the string
+value's string representation.  Appends are optimized to handle
+repeated appends relatively efficiently (it over-allocates the string
 or Unicode space to avoid repeated reallocations and copies of
-object's string value).
+value's string value).
 .PP
 \fBTcl_AppendObjToObj\fR is similar to \fBTcl_AppendToObj\fR, but it
 appends the string or Unicode value (whichever exists and is best
@@ -245,13 +255,8 @@ except that it can be passed more than one value to append and
 each value must be a null-terminated string (i.e. none of the
 values may contain internal null characters).  Any number of
 \fIstring\fR arguments may be provided, but the last argument
-must be a NULL pointer to indicate the end of the list.
+must be (char *)NULL to indicate the end of the list.
 .PP
-\fBTcl_AppendStringsToObjVA\fR is the same as \fBTcl_AppendStringsToObj\fR
-except that instead of taking a variable number of arguments it takes an
-argument list.
-.PP
-.VS 8.5
 \fBTcl_AppendLimitedToObj\fR is similar to \fBTcl_AppendToObj\fR
 except that it imposes a limit on how many bytes are appended.
 This can be handy when the string to be appended might be
@@ -264,7 +269,7 @@ all \fIlength\fR bytes that are available from being appended, then the
 appending is done so that the last bytes appended are from the
 string \fIellipsis\fR. This allows for an indication of the truncation
 to be left in the string.
-When \fIlength\fR is \fB-1\fR, all bytes up to the first zero byte are appended,
+When \fIlength\fR is negative, all bytes up to the first zero byte are appended,
 subject to the limit. When \fIellipsis\fR is NULL, the default
 string \fB...\fR is used. When \fIellipsis\fR is non-NULL, it must point
 to a zero-byte-terminated string in Tcl's internal UTF encoding.
@@ -275,9 +280,11 @@ bytes is necessary to append only whole multi-byte characters.
 \fBTcl_Format\fR is the C-level interface to the engine of the \fBformat\fR
 command.  The actual command procedure for \fBformat\fR is little more
 than
+.PP
 .CS
-Tcl_Format(interp, Tcl_GetString(objv[1]), objc-2, objv+2);
+\fBTcl_Format\fR(interp, \fBTcl_GetString\fR(objv[1]), objc-2, objv+2);
 .CE
+.PP
 The \fIobjc\fR Tcl_Obj values in \fIobjv\fR are formatted into a string
 according to the conversion specification in \fIformat\fR argument, following
 the documentation for the \fBformat\fR command.  The resulting formatted
@@ -287,27 +294,35 @@ returned, and an error message is recorded in \fIinterp\fR, if \fIinterp\fR
 is non-NULL.
 .PP
 \fBTcl_AppendFormatToObj\fR is an appending alternative form
-of \fBTcl_Format\fR with functionality equivalent to
+of \fBTcl_Format\fR with functionality equivalent to:
+.PP
 .CS
-Tcl_Obj *newPtr = Tcl_Format(interp, format, objc, objv);
+Tcl_Obj *newPtr = \fBTcl_Format\fR(interp, format, objc, objv);
 if (newPtr == NULL) return TCL_ERROR;
-Tcl_AppendObjToObj(objPtr, newPtr);
+\fBTcl_AppendObjToObj\fR(objPtr, newPtr);
+\fBTcl_DecrRefCount\fR(newPtr);
 return TCL_OK;
 .CE
+.PP
 but with greater convenience and efficiency when the appending
 functionality is needed.
 .PP
 \fBTcl_ObjPrintf\fR serves as a replacement for the common sequence
+.PP
 .CS
 char buf[SOME_SUITABLE_LENGTH];
 sprintf(buf, format, ...);
-Tcl_NewStringObj(buf, -1);
+\fBTcl_NewStringObj\fR(buf, -1);
 .CE
-but with greater convenience and no need to 
+.PP
+but with greater convenience and no need to
 determine \fBSOME_SUITABLE_LENGTH\fR. The formatting is done with the same
 core formatting engine used by \fBTcl_Format\fR.  This means the set of
-supported conversion specifiers is that of the \fBformat\fR command and
-not that of the \fBsprintf\fR routine where the two sets differ. When a
+supported conversion specifiers is that of the \fBformat\fR command but
+the behavior is as similar as possible to \fBsprintf\fR. The "hh" and
+(Microsoft-specific) "w" format specifiers are not supported. The "L"
+format specifier means that an "mp_int *" argument is expected (or a
+"long double" in combination with \fB[aAeEgGaA]\fR). When a
 conversion specifier passed to \fBTcl_ObjPrintf\fR includes a precision,
 the value is taken as a number of bytes, as \fBsprintf\fR does, and not
 as a number of characters, as \fBformat\fR does.  This is done on the
@@ -315,34 +330,58 @@ assumption that C code is more likely to know how many bytes it is
 passing around than the number of encoded characters those bytes happen
 to represent.  The variable number of arguments passed in should be of
 the types that would be suitable for passing to \fBsprintf\fR.  Note in
-this example usage, \fIx\fR is of type \fBlong\fR.
+this example usage, \fIx\fR is of type \fBint\fR.
+.PP
 .CS
-long x = 5;
-Tcl_Obj *objPtr = Tcl_ObjPrintf("Value is %d", x);
+int x = 5;
+Tcl_Obj *objPtr = \fBTcl_ObjPrintf\fR("Value is %d", x);
 .CE
+.PP
 If the value of \fIformat\fR contains internal inconsistencies or invalid
 specifier formats, the formatted string result produced by
 \fBTcl_ObjPrintf\fR will be an error message describing the error.
+It is impossible however to provide runtime protection against
+mismatches between the format and any subsequent arguments.
+Compile-time protection may be provided by some compilers.
 .PP
 \fBTcl_AppendPrintfToObj\fR is an appending alternative form
 of \fBTcl_ObjPrintf\fR with functionality equivalent to
+.PP
 .CS
-Tcl_AppendObjToObj(objPtr, Tcl_ObjPrintf(format, ...));
+Tcl_Obj *newPtr = \fBTcl_ObjPrintf\fR(format, ...);
+\fBTcl_AppendObjToObj\fR(objPtr, newPtr);
+\fBTcl_DecrRefCount\fR(newPtr);
 .CE
+.PP
 but with greater convenience and efficiency when the appending
 functionality is needed.
-.VE 8.5
+.PP
+When printing integer types defined by Tcl, such as \fBTcl_Size\fR
+or \fBTcl_WideInt\fR, a format size specifier is needed as the
+integer width of those types is dependent on the Tcl version,
+platform and compiler. To accomodate these differences, Tcl defines
+C preprocessor symbols \fBTCL_LL_MODIFER\fR and
+\fBTCL_SIZE_MODIFER\fR for use when formatting values of type
+\fBTcl_WideInt\fR and \fBTcl_Size\fR respectively. Their usage
+is illustrated by
+.PP
+.CS
+Tcl_WideInt wide;
+Tcl_Size len;
+Tcl_Obj *wideObj = Tcl_ObjPrintf("wide = %" \fBTCL_LL_MODIFIER\fR "d", wide);
+Tcl_Obj *lenObj = Tcl_ObjPrintf("len = %" \fBTCL_SIZE_MODIFIER\fR "d", len);
+.CE
 .PP
 The \fBTcl_SetObjLength\fR procedure changes the length of the
 string value of its \fIobjPtr\fR argument.  If the \fInewLength\fR
-argument is greater than the space allocated for the object's
+argument is greater than the space allocated for the value's
 string, then the string space is reallocated and the old value
 is copied to the new space; the bytes between the old length of
 the string and the new length may have arbitrary values.
 If the \fInewLength\fR argument is less than the current length
-of the object's string, with \fIobjPtr->length\fR is reduced without
+of the value's string, with \fIobjPtr->length\fR is reduced without
 reallocating the string space; the original allocated size for the
-string is recorded in the object, so that the string length can be
+string is recorded in the value, so that the string length can be
 enlarged in a subsequent call to \fBTcl_SetObjLength\fR without
 reallocating storage.  In all cases \fBTcl_SetObjLength\fR leaves
 a null character at \fIobjPtr->bytes[newLength]\fR.
@@ -351,26 +390,58 @@ a null character at \fIobjPtr->bytes[newLength]\fR.
 \fBTcl_SetObjLength\fR except that if sufficient memory to satisfy the
 request cannot be allocated, it does not cause the Tcl interpreter to
 \fBpanic\fR.  Thus, if \fInewLength\fR is greater than the space
-allocated for the object's string, and there is not enough memory
+allocated for the value's string, and there is not enough memory
 available to satisfy the request, \fBTcl_AttemptSetObjLength\fR will take
 no action and return 0 to indicate failure.  If there is enough memory
 to satisfy the request, \fBTcl_AttemptSetObjLength\fR behaves just like
 \fBTcl_SetObjLength\fR and returns 1 to indicate success.
 .PP
-The \fBTcl_ConcatObj\fR function returns a new string object whose
+The \fBTcl_ConcatObj\fR function returns a new string value whose
 value is the space-separated concatenation of the string
-representations of all of the objects in the \fIobjv\fR
+representations of all of the values in the \fIobjv\fR
 array. \fBTcl_ConcatObj\fR eliminates leading and trailing white space
 as it copies the string representations of the \fIobjv\fR array to the
 result. If an element of the \fIobjv\fR array consists of nothing but
-white space, then that object is ignored entirely. This white-space
+white space, then that value is ignored entirely. This white-space
 removal was added to make the output of the \fBconcat\fR command
 cleaner-looking. \fBTcl_ConcatObj\fR returns a pointer to a
-newly-created object whose ref count is zero.
+newly-created value whose ref count is zero.
+.PP
+The \fBTcl_IsEmpty\fR function returns 1 if \fIobjPtr\fR is the empty
+string, 0 otherwise.
+It doesn't generate the string representation (unless there
+is no other way to do it), so it can safely be called on lists with
+billions of elements, or any other data structure for which
+it is impossible or expensive to construct the string representation.
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+\fBTcl_NewStringObj\fR, \fBTcl_NewUnicodeObj\fR, \fBTcl_Format\fR,
+\fBTcl_ObjPrintf\fR, and \fBTcl_ConcatObj\fR always return a zero-reference
+object, much like \fBTcl_NewObj\fR.
+.PP
+\fBTcl_GetStringFromObj\fR, \fBTcl_GetString\fR, \fBTcl_GetUnicodeFromObj\fR,
+\fBTcl_GetUnicode\fR, \fBTcl_GetUniChar\fR, \fBTcl_GetCharLength\fR, and
+\fBTcl_GetRange\fR all only work with an existing value; they do not
+manipulate its reference count in any way.
+.PP
+\fBTcl_SetStringObj\fR, \fBTcl_SetUnicodeObj\fR, \fBTcl_AppendToObj\fR,
+\fBTcl_AppendUnicodeToObj\fR, \fBTcl_AppendObjToObj\fR,
+\fBTcl_AppendStringsToObj\fR, \fBTcl_AppendStringsToObjVA\fR,
+\fBTcl_AppendLimitedToObj\fR, \fBTcl_AppendFormatToObj\fR,
+\fBTcl_AppendPrintfToObj\fR, \fBTcl_SetObjLength\fR, and
+\fBTcl_AttemptSetObjLength\fR and require their \fIobjPtr\fR to be an unshared
+value (i.e, a reference count no more than 1) as they will modify it.
+.PP
+Additional arguments to the above functions (the \fIappendObjPtr\fR argument
+to \fBTcl_AppendObjToObj\fR, values in the \fIobjv\fR argument to
+\fBTcl_Format\fR, \fBTcl_AppendFormatToObj\fR, and \fBTcl_ConcatObj\fR) can
+have any reference count, but reference counts of zero are not recommended.
+.PP
+\fBTcl_Format\fR and \fBTcl_AppendFormatToObj\fR may modify the interpreter
+result, which involves changing the reference count of a value.
 
 .SH "SEE ALSO"
-Tcl_NewObj, Tcl_IncrRefCount, Tcl_DecrRefCount, format, sprintf
-
+Tcl_NewObj(3), Tcl_IncrRefCount(3), Tcl_DecrRefCount(3), format(n), sprintf(3)
 .SH KEYWORDS
-append, internal representation, object, object type, string object,
+append, internal representation, value, value type, string value,
 string type, string representation, concat, concatenate, unicode
diff --git a/doc/SubstObj.3 b/doc/SubstObj.3
index ba0ee7c..2867df8 100644
--- a/doc/SubstObj.3
+++ b/doc/SubstObj.3
@@ -3,18 +3,19 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_SubstObj 3 8.4 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_SubstObj \- perform substitutions on Tcl objects
+Tcl_SubstObj \- perform substitutions on Tcl values
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
 .sp
 Tcl_Obj *
 \fBTcl_SubstObj\fR(\fIinterp, objPtr, flags\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_Interp **termPtr
 .AP Tcl_Interp *interp in
@@ -22,9 +23,9 @@ Interpreter in which to execute Tcl scripts and lookup variables.  If
 an error occurs, the interpreter's result is modified to hold an error
 message.
 .AP Tcl_Obj *objPtr in
-A Tcl object containing the string to perform substitutions on.
+A Tcl value containing the string to perform substitutions on.
 .AP int flags in
-ORed combination of flag bits that specify which substitutions to
+OR'ed combination of flag bits that specify which substitutions to
 perform.  The flags \fBTCL_SUBST_COMMANDS\fR,
 \fBTCL_SUBST_VARIABLES\fR and \fBTCL_SUBST_BACKSLASHES\fR are
 currently supported, and \fBTCL_SUBST_ALL\fR is provided as a
@@ -36,7 +37,7 @@ The \fBTcl_SubstObj\fR function is used to perform substitutions on
 strings in the fashion of the \fBsubst\fR command.  It gets the value
 of the string contained in \fIobjPtr\fR and scans it, copying
 characters and performing the chosen substitutions as it goes to an
-output object which is returned as the result of the function.  In the
+output value which is returned as the result of the function.  In the
 event of an error occurring during the execution of a command or
 variable substitution, the function returns NULL and an error message
 is left in \fIinterp\fR's result.
@@ -62,6 +63,13 @@ result of the whole substitution on \fIobjPtr\fR will be truncated at
 the point immediately before the start of the command substitution,
 and no characters will be added to the result or substitutions
 performed after that point.
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+The \fIobjPtr\fR argument to \fBTcl_SubstObj\fR must not have a reference
+count of zero. This function modifies the interpreter result, both on success
+and on failure; the result of this function on success is exactly the current
+interpreter result. Successful results should have their reference count
+incremented if they are to be retained.
 .SH "SEE ALSO"
 subst(n)
 .SH KEYWORDS
diff --git a/doc/TCL_MEM_DEBUG.3 b/doc/TCL_MEM_DEBUG.3
index e3a6809..6bd03c9 100644
--- a/doc/TCL_MEM_DEBUG.3
+++ b/doc/TCL_MEM_DEBUG.3
@@ -1,8 +1,8 @@
-'\" 
-'\" Copyright (c) 1992-1999 Karl Lehenbauer and Mark Diekhans.
-'\" Copyright (c) 2000 by Scriptics Corporation.
+'\"
+'\" Copyright (c) 1992-1999 Karl Lehenbauer & Mark Diekhans.
+'\" Copyright (c) 2000 Scriptics Corporation.
 '\" All rights reserved.
-'\" 
+'\"
 .TH TCL_MEM_DEBUG 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -34,7 +34,7 @@ and the Tcl \fBmemory\fR command can be used to validate and examine
 memory usage.
 .SH "GUARD ZONES"
 .PP
-When memory debugging is enabled, whenever a call to \fBckalloc\fR is
+When memory debugging is enabled, whenever a call to \fBTcl_Alloc\fR is
 made, slightly more memory than requested is allocated so the memory
 debugging code can keep track of the allocated memory, and eight-byte
 .QW "guard zones"
@@ -44,7 +44,7 @@ C #define \fBLOW_GUARD_SIZE\fR and #define \fBHIGH_GUARD_SIZE\fR
 in the file \fIgeneric/tclCkalloc.c\fR \(em it can
 be extended if you suspect large overwrite problems, at some cost in
 performance.)  A known pattern is written into the guard zones and, on
-a call to \fBckfree\fR, the guard zones of the space being freed are
+a call to \fBTcl_Free\fR, the guard zones of the space being freed are
 checked to see if either zone has been modified in any way.  If one
 has been, the guard bytes and their new contents are identified, and a
 .QW "low guard failed"
@@ -53,7 +53,7 @@ or
 message is issued.  The
 .QW "guard failed"
 message includes the address of the memory packet and
-the file name and line number of the code that called \fBckfree\fR.
+the file name and line number of the code that called \fBTcl_Free\fR.
 This allows you to detect the common sorts of one-off problems, where
 not enough space was allocated to contain the data written, for
 example.
@@ -66,15 +66,15 @@ suspect (or know) that corruption is occurring before the Tcl
 interpreter comes up far enough for you to issue commands, you can set
 \fBMEM_VALIDATE\fR define, recompile tclCkalloc.c and rebuild Tcl.
 This will enable memory validation from the first call to
-\fBckalloc\fR, again, at a large performance impact.
+\fBTcl_Alloc\fR, again, at a large performance impact.
 .PP
 If you are desperate and validating memory on every call to
-\fBckalloc\fR and \fBckfree\fR is not enough, you can explicitly call
+\fBTcl_Alloc\fR and \fBTcl_Free\fR is not enough, you can explicitly call
 \fBTcl_ValidateAllMemory\fR directly at any point.  It takes a \fIchar
 *\fR and an \fIint\fR which are normally the filename and line number
 of the caller, but they can actually be anything you want.  Remember
 to remove the calls after you find the problem.
 .SH "SEE ALSO"
-ckalloc, memory, Tcl_ValidateAllMemory, Tcl_DumpActiveMemory
+Tcl_Alloc, memory, Tcl_ValidateAllMemory, Tcl_DumpActiveMemory
 .SH KEYWORDS
 memory, debug
diff --git a/doc/Tcl.n b/doc/Tcl.n
index 5c09cb8..0f784af 100644
--- a/doc/Tcl.n
+++ b/doc/Tcl.n
@@ -5,7 +5,7 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.TH Tcl n "8.5" Tcl "Tcl Built-In Commands"
+.TH Tcl n "8.6" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
 .SH NAME
@@ -28,10 +28,10 @@ First, the Tcl interpreter breaks the command into \fIwords\fR
 and performs substitutions as described below.
 These substitutions are performed in the same way for all
 commands.
-The first word is used to locate a command procedure to
-carry out the command, then all of the words of the command are
-passed to the command procedure.
-The command procedure is free to interpret each of its words
+Secondly, the first word is used to locate a routine to
+carry out the command, and the remaining words of the command are
+passed to that routine.
+The routine is free to interpret each of its words
 in any way it likes, such as an integer, variable name, list,
 or Tcl script.
 Different commands interpret their words differently.
@@ -48,7 +48,6 @@ as ordinary characters and included in the word.
 Command substitution, variable substitution, and backslash substitution
 are performed on the characters between the quotes as described below.
 The double-quotes are not retained as part of the word.
-.VS 8.5 br
 .IP "[5] \fBArgument expansion.\fR"
 If a word starts with the string
 .QW {*}
@@ -60,10 +59,9 @@ variable substitutions; backslash substitutions are performed as is normal for
 a list and individual internal words may be surrounded by either braces or
 double-quote characters), and its words are added to the command being
 substituted. For instance,
-.QW "cmd a {*}{b [c]} d {*}{$e f \N'34'g h\N'34'}"
+.QW "cmd a {*}{b [c]} d {*}{$e f {g h}}"
 is equivalent to
-.QW "cmd a b {[c]} d {$e} f \N'34'g h\N'34'" .
-.VE 8.5
+.QW "cmd a b {[c]} d {$e} f {g h}" .
 .IP "[6] \fBBraces.\fR"
 If the first character of a word is an open brace
 .PQ {
@@ -106,24 +104,44 @@ Variable substitution may take any of the following forms:
 .RS
 .TP 15
 \fB$\fIname\fR
+.
 \fIName\fR is the name of a scalar variable;  the name is a sequence
 of one or more characters that are a letter, digit, underscore,
 or namespace separators (two or more colons).
+Letters and digits are \fIonly\fR the standard ASCII ones (\fB0\fR\(en\fB9\fR,
+\fBA\fR\(en\fBZ\fR and \fBa\fR\(en\fBz\fR).
 .TP 15
 \fB$\fIname\fB(\fIindex\fB)\fR
+.
 \fIName\fR gives the name of an array variable and \fIindex\fR gives
 the name of an element within that array.
 \fIName\fR must contain only letters, digits, underscores, and
 namespace separators, and may be an empty string.
+Letters and digits are \fIonly\fR the standard ASCII ones (\fB0\fR\(en\fB9\fR,
+\fBA\fR\(en\fBZ\fR and \fBa\fR\(en\fBz\fR).
 Command substitutions, variable substitutions, and backslash
 substitutions are performed on the characters of \fIindex\fR.
 .TP 15
 \fB${\fIname\fB}\fR
-\fIName\fR is the name of a scalar variable.  It may contain any
-characters whatsoever except for close braces.
-.LP
+.
+\fIName\fR is the name of a scalar variable or array element.  It may contain
+any characters whatsoever except for close braces.  It indicates an array
+element if \fIname\fR is in the form
+.QW \fIarrayName\fB(\fIindex\fB)\fR
+where \fIarrayName\fR does not contain any open parenthesis characters,
+.QW \fB(\fR ,
+or close brace characters,
+.QW \fB}\fR ,
+and \fIindex\fR can be any sequence of characters except for close brace
+characters.  No further
+substitutions are performed during the parsing of \fIname\fR.
+.PP
 There may be any number of variable substitutions in a single word.
 Variable substitution is not performed on words enclosed in braces.
+.PP
+Note that variables may contain character sequences other than those listed
+above, but in that case other mechanisms must be used to access them (e.g.,
+via the \fBset\fR command's single-argument form).
 .RE
 .IP "[9] \fBBackslash substitution.\fR"
 If a backslash
@@ -138,27 +156,29 @@ special processing.
 The following table lists the backslash sequences that are
 handled specially, along with the value that replaces each sequence.
 .RS
+.RS
+.RS
 .TP 7
 \e\fBa\fR
-Audible alert (bell) (0x7).
+Audible alert (bell) (Unicode U+000007).
 .TP 7
 \e\fBb\fR
-Backspace (0x8).
+Backspace (Unicode U+000008).
 .TP 7
 \e\fBf\fR
-Form feed (0xC).
+Form feed (Unicode U+00000C).
 .TP 7
 \e\fBn\fR
-Newline (0xA).
+Newline (Unicode U+00000A).
 .TP 7
 \e\fBr\fR
-Carriage-return (0xD).
+Carriage-return (Unicode U+00000D).
 .TP 7
 \e\fBt\fR
-Tab (0x9).
+Tab (Unicode U+000009).
 .TP 7
 \e\fBv\fR
-Vertical tab (0xB).
+Vertical tab (Unicode U+00000B).
 .TP 7
 \e\fB<newline>\fIwhiteSpace\fR
 .
@@ -173,26 +193,39 @@ in braces or quotes.
 Backslash
 .PQ \e "" .
 .TP 7
-\e\fIooo\fR 
+\e\fIooo\fR
 .
-The digits \fIooo\fR (one, two, or three of them) give an eight-bit octal 
-value for the Unicode character that will be inserted.  The upper bits of the
-Unicode character will be 0.
+The digits \fIooo\fR (one, two, or three of them) give a eight-bit octal
+value for the Unicode character that will be inserted, in the range
+\fI000\fR\(en\fI377\fR (i.e., the range U+000000\(enU+0000FF).
+The parser will stop just before this range overflows, or when
+the maximum of three digits is reached.  The upper bits of the Unicode
+character will be 0.
 .TP 7
-\e\fBx\fIhh\fR 
+\e\fBx\fIhh\fR
 .
-The hexadecimal digits \fIhh\fR give an eight-bit hexadecimal value for the
-Unicode character that will be inserted.  Any number of hexadecimal digits
-may be present; however, all but the last two are ignored (the result is
-always a one-byte quantity).  The upper bits of the Unicode character will
-be 0.
+The hexadecimal digits \fIhh\fR (one or two of them) give an eight-bit
+hexadecimal value for the Unicode character that will be inserted.  The upper
+bits of the Unicode character will be 0 (i.e., the character will be in the
+range U+000000\(enU+0000FF).
 .TP 7
-\e\fBu\fIhhhh\fR 
+\e\fBu\fIhhhh\fR
 .
 The hexadecimal digits \fIhhhh\fR (one, two, three, or four of them) give a
 sixteen-bit hexadecimal value for the Unicode character that will be
-inserted.
-.LP
+inserted.  The upper bits of the Unicode character will be 0 (i.e., the
+character will be in the range U+000000\(enU+00FFFF).
+.TP 7
+\e\fBU\fIhhhhhhhh\fR
+.
+The hexadecimal digits \fIhhhhhhhh\fR (one up to eight of them) give a
+twenty-one-bit hexadecimal value for the Unicode character that will be
+inserted, in the range U+000000\(enU+10FFFF.  The parser will stop just
+before this range overflows, or when the maximum of eight digits
+is reached.  The upper bits of the Unicode character will be 0.
+.RE
+.RE
+.PP
 Backslash substitution is not performed on words enclosed in braces,
 except for backslash-newline as described above.
 .RE
@@ -217,13 +250,15 @@ no substitutions are performed before making the recursive
 call and no additional substitutions are performed on the result
 of the nested script.
 .RS
-.LP
+.PP
 Substitutions take place from left to right, and each substitution is
 evaluated completely before attempting to evaluate the next.  Thus, a
 sequence like
+.PP
 .CS
 set y [set x 0][incr x][incr x]
 .CE
+.PP
 will always set the variable \fIy\fR to the value, \fI012\fR.
 .RE
 .IP "[12] \fBSubstitution and word boundaries.\fR"
@@ -232,3 +267,9 @@ except for argument expansion as specified in rule [5].
 For example, during variable substitution the entire value of
 the variable becomes part of a single word, even if the variable's
 value contains spaces.
+.SH KEYWORDS
+backslash, command, comment, script, substitution, variable
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/TclZlib.3 b/doc/TclZlib.3
new file mode 100644
index 0000000..4d6735b
--- /dev/null
+++ b/doc/TclZlib.3
@@ -0,0 +1,290 @@
+'\"
+'\" Copyright (c) 2008 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH TclZlib 3 8.6 Tcl "Tcl Library Procedures"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+Tcl_ZlibAdler32, Tcl_ZlibCRC32, Tcl_ZlibDeflate, Tcl_ZlibInflate, Tcl_ZlibStreamChecksum, Tcl_ZlibStreamClose, Tcl_ZlibStreamEof, Tcl_ZlibStreamGet, Tcl_ZlibStreamGetCommandName, Tcl_ZlibStreamInit, Tcl_ZlibStreamPut \- compression and decompression functions
+.SH SYNOPSIS
+.nf
+#include <tcl.h>
+.sp
+int
+\fBTcl_ZlibDeflate\fR(\fIinterp, format, dataObj, level, dictObj\fR)
+.sp
+int
+\fBTcl_ZlibInflate\fR(\fIinterp, format, dataObj, bufferSize, dictObj\fR)
+.sp
+unsigned int
+\fBTcl_ZlibCRC32\fR(\fIinitValue, bytes, length\fR)
+.sp
+unsigned int
+\fBTcl_ZlibAdler32\fR(\fIinitValue, bytes, length\fR)
+.sp
+int
+\fBTcl_ZlibStreamInit\fR(\fIinterp, mode, format, level, dictObj, zshandlePtr\fR)
+.sp
+Tcl_Obj *
+\fBTcl_ZlibStreamGetCommandName\fR(\fIzshandle\fR)
+.sp
+int
+\fBTcl_ZlibStreamEof\fR(\fIzshandle\fR)
+.sp
+int
+\fBTcl_ZlibStreamClose\fR(\fIzshandle\fR)
+.sp
+int
+\fBTcl_ZlibStreamReset\fR(\fIzshandle\fR)
+.sp
+int
+\fBTcl_ZlibStreamChecksum\fR(\fIzshandle\fR)
+.sp
+int
+\fBTcl_ZlibStreamPut\fR(\fIzshandle, dataObj, flush\fR)
+.sp
+int
+\fBTcl_ZlibStreamGet\fR(\fIzshandle, dataObj, count\fR)
+.sp
+\fBTcl_ZlibStreamSetCompressionDictionary\fR(\fIzshandle, compDict\fR)
+.fi
+.SH ARGUMENTS
+.AS Tcl_ZlibStream zshandle in
+.AP Tcl_Interp *interp in
+The interpreter to store resulting compressed or uncompressed data in. Also
+where any error messages are written. For \fBTcl_ZlibStreamInit\fR, this can
+be NULL to create a stream that is not bound to a command.
+.AP int format in
+What format of compressed data to work with. Must be one of
+\fBTCL_ZLIB_FORMAT_ZLIB\fR for zlib-format data, \fBTCL_ZLIB_FORMAT_GZIP\fR
+for gzip-format data, or \fBTCL_ZLIB_FORMAT_RAW\fR for raw compressed data. In
+addition, for decompression only, \fBTCL_ZLIB_FORMAT_AUTO\fR may also be
+chosen which can automatically detect whether the compressed data was in zlib
+or gzip format.
+.AP Tcl_Obj *dataObj in/out
+A byte-array value containing the data to be compressed or decompressed, or
+to which the data extracted from the stream is appended when passed to
+\fBTcl_ZlibStreamGet\fR.
+.AP int level in
+What level of compression to use. Should be a number from 0 to 9 or one of the
+following: \fBTCL_ZLIB_COMPRESS_NONE\fR for no compression,
+\fBTCL_ZLIB_COMPRESS_FAST\fR for fast but inefficient compression,
+\fBTCL_ZLIB_COMPRESS_BEST\fR for slow but maximal compression, or
+\fBTCL_ZLIB_COMPRESS_DEFAULT\fR for the level recommended by the zlib library.
+.AP Tcl_Obj *dictObj in/out
+A dictionary that contains, or which will be updated to contain, a description
+of the gzip header associated with the compressed data. Only useful when the
+\fIformat\fR is \fBTCL_ZLIB_FORMAT_GZIP\fR or \fBTCL_ZLIB_FORMAT_AUTO\fR. If
+a NULL is passed, a default header will be used on compression and the header
+will be ignored (apart from integrity checks) on decompression. See the
+section \fBGZIP OPTIONS DICTIONARY\fR for details about the contents of this
+dictionary.
+.AP "unsigned int" initValue in
+The initial value for the checksum algorithm.
+.AP "Tcl_Size" bufferSize in
+A hint as to what size of buffer is to be used to receive the data.
+Use 0 to use a geric guess based on the input data.
+.AP "unsigned char" *bytes in
+An array of bytes to run the checksum algorithm over, or NULL to get the
+recommended initial value for the checksum algorithm.
+.AP Tcl_Size length in
+The number of bytes in the array.
+.AP int mode in
+What mode to operate the stream in. Should be either
+\fBTCL_ZLIB_STREAM_DEFLATE\fR for a compressing stream or
+\fBTCL_ZLIB_STREAM_INFLATE\fR for a decompressing stream.
+.AP Tcl_ZlibStream *zshandlePtr out
+A pointer to a variable in which to write the abstract token for the stream
+upon successful creation.
+.AP Tcl_ZlibStream zshandle in
+The abstract token for the stream to operate on.
+.AP int flush in
+Whether and how to flush the stream after writing the data to it. Must be one
+of: \fBTCL_ZLIB_NO_FLUSH\fR if no flushing is to be done, \fBTCL_ZLIB_FLUSH\fR
+if the currently compressed data must be made available for access using
+\fBTcl_ZlibStreamGet\fR, \fBTCL_ZLIB_FULLFLUSH\fR if the stream must be put
+into a state where the decompressor can recover from on corruption, or
+\fBTCL_ZLIB_FINALIZE\fR to ensure that the stream is finished and that any
+trailer demanded by the format is written.
+.AP Tcl_Size count in
+The maximum number of bytes to get from the stream, or -1 to get
+all remaining bytes from the stream's buffers.
+.AP Tcl_Obj *compDict in
+A byte array value that is the compression dictionary to use with the stream.
+Note that this is \fInot a Tcl dictionary\fR, and it is recommended that this
+only ever be used with streams that were created with their \fIformat\fR set
+to \fBTCL_ZLIB_FORMAT_ZLIB\fR because the other formats have no mechanism to
+indicate whether a compression dictionary was present other than to fail on
+decompression.
+.BE
+.SH DESCRIPTION
+These functions form the interface from the Tcl library to the Zlib
+library by Jean-loup Gailly and Mark Adler.
+.PP
+\fBTcl_ZlibDeflate\fR and \fBTcl_ZlibInflate\fR respectively compress and
+decompress the data contained in the \fIdataObj\fR argument, according to the
+\fIformat\fR and, for compression, \fIlevel\fR arguments. The dictionary in
+the \fIdictObj\fR parameter is used to convey additional header information
+about the compressed data when the compression format supports it; currently,
+the dictionary is only used when the \fIformat\fR parameter is
+\fBTCL_ZLIB_FORMAT_GZIP\fR or \fBTCL_ZLIB_FORMAT_AUTO\fR. For details of the
+contents of the dictionary, see the \fBGZIP OPTIONS DICTIONARY\fR section
+below. Upon success, both functions leave the resulting compressed or
+decompressed data in a byte-array value that is the Tcl interpreter's result;
+the returned value is a standard Tcl result code.
+.PP
+\fBTcl_ZlibAdler32\fR and \fBTcl_ZlibCRC32\fR compute checksums on arrays of
+bytes, returning the computed checksum. Checksums are computed incrementally,
+allowing data to be processed one block at a time, but this requires the
+caller to maintain the current checksum and pass it in as the \fIinitValue\fR
+parameter; the initial value to use for this can be obtained by using NULL for
+the \fIbytes\fR parameter instead of a pointer to the array of bytes to
+compute the checksum over. Thus, typical usage in the single data block case
+is like this:
+.PP
+.CS
+checksum = \fBTcl_ZlibCRC32\fR(\fBTcl_ZlibCRC32\fR(0,NULL,0), data, length);
+.CE
+.PP
+Note that the Adler-32 algorithm is not a real checksum, but instead is a
+related type of hash that works best on longer data.
+.SS "ZLIB STREAMS"
+.PP
+\fBTcl_ZlibStreamInit\fR creates a compressing or decompressing stream that is
+linked to a Tcl command, according to its arguments, and provides an abstract
+token for the stream and returns a normal Tcl result code;
+\fBTcl_ZlibStreamGetCommandName\fR returns the name of that command given the
+stream token, or NULL if the stream has no command. Streams are not designed
+to be thread-safe; each stream should only ever be used from the thread that
+created it. When working with gzip streams, a dictionary (fields as given in
+the \fBGZIP OPTIONS DICTIONARY\fR section below) can be given via the
+\fIdictObj\fR parameter that on compression allows control over the generated
+headers, and on decompression allows discovery of the existing headers. Note
+that the dictionary will be written to on decompression once sufficient data
+has been read to have a complete header. This means that the dictionary must
+be an unshared value in that case; a blank value created with
+\fBTcl_NewObj\fR is suggested.
+.PP
+Once a stream has been constructed, \fBTcl_ZlibStreamPut\fR is used to add
+data to the stream and \fBTcl_ZlibStreamGet\fR is used to retrieve data from
+the stream after processing. Both return normal Tcl result codes and leave an
+error message in the result of the interpreter that the stream is registered
+with in the error case (if such a registration has been performed). With
+\fBTcl_ZlibStreamPut\fR, the data buffer value passed to it should not be
+modified afterwards. With \fBTcl_ZlibStreamGet\fR, the data buffer value
+passed to it will have the data bytes appended to it. Internally to the
+stream, data is kept compressed so as to minimize the cost of buffer space.
+.PP
+\fBTcl_ZlibStreamChecksum\fR returns the checksum computed over the
+uncompressed data according to the format, and \fBTcl_ZlibStreamEof\fR returns
+a boolean value indicating whether the end of the uncompressed data has been
+reached.
+.PP
+\fBTcl_ZlibStreamSetCompressionDictionary\fR is used to control the
+compression dictionary used with the stream, a compression dictionary being an
+array of bytes (such as might be created with \fBTcl_NewByteArrayObj\fR) that
+is used to initialize the compression engine rather than leaving it to create
+it on the fly from the data being compressed. Setting a compression dictionary
+allows for more efficient compression in the case where the start of the data
+is highly regular, but it does require both the compressor and the
+decompressor to agree on the value to use. Compression dictionaries are only
+fully supported for zlib-format data; on compression, they must be set before
+any data is sent in with \fBTcl_ZlibStreamPut\fR, and on decompression they
+should be set when \fBTcl_ZlibStreamGet\fR produces an \fBerror\fR with its
+\fB\-errorcode\fR set to
+.QW "\fBZLIB NEED_DICT\fI code\fR" ;
+the \fIcode\fR will be the Adler-32 checksum (see \fBTcl_ZlibAdler32\fR) of
+the compression dictionary sought. (Note that this is only true for
+zlib-format streams; gzip streams ignore compression dictionaries as the
+format specification doesn't permit them, and raw streams just produce a data
+error if the compression dictionary is missing or incorrect.)
+.PP
+If you wish to clear a stream and reuse it for a new compression or
+decompression action, \fBTcl_ZlibStreamReset\fR will do this and return a
+normal Tcl result code to indicate whether it was successful; if the stream is
+registered with an interpreter, an error message will be left in the
+interpreter result when this function returns TCL_ERROR.
+Finally, \fBTcl_ZlibStreamClose\fR will clean up the stream and delete the
+associated command: using \fBTcl_DeleteCommand\fR on the stream's command is
+equivalent (when such a command exists).
+.SH "GZIP OPTIONS DICTIONARY"
+.PP
+The \fIdictObj\fR parameter to \fBTcl_ZlibDeflate\fR, \fBTcl_ZlibInflate\fR
+and \fBTcl_ZlibStreamInit\fR is used to pass a dictionary of options about
+that is used to describe the gzip header in the compressed data. When creating
+compressed data, the dictionary is read and when unpacking compressed data the
+dictionary is written (in which case the \fIdictObj\fR parameter must refer to
+an unshared dictionary value).
+.PP
+The following fields in the dictionary value are understood. All other fields
+are ignored. No field is required when creating a gzip-format stream.
+.IP \fBcomment\fR
+This holds the comment field of the header, if present. If absent, no comment
+was supplied (on decompression) or will be created (on compression).
+.IP \fBcrc\fR
+A boolean value describing whether a CRC of the header is computed. Note that
+the \fBgzip\fR program does \fInot\fR use or allow a CRC on the header.
+.IP \fBfilename\fR
+The name of the file that held the uncompressed data. This should not contain
+any directory separators, and should be sanitized before use on decompression
+with \fBfile tail\fR.
+.IP \fBos\fR
+The operating system type code field from the header (if not the
+.QW unknown
+value). See RFC 1952 for the meaning of these codes. On compression, if this
+is absent then the field will be set to the
+.QW unknown
+value.
+.IP \fBsize\fR
+The size of the uncompressed data. This is ignored on compression; the size
+of the data compressed depends on how much data is supplied to the
+compression engine.
+.IP \fBtime\fR
+The time field from the header if non-zero, expected to be the time that the
+file named by the \fBfilename\fR field was modified. Suitable for use with
+\fBclock format\fR. On creation, the right value to use is that from
+\fBclock seconds\fR or \fBfile mtime\fR.
+.IP \fBtype\fR
+The type of the uncompressed data (either \fBbinary\fR or \fBtext\fR) if
+known.
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+\fBTcl_ZlibDeflate\fR and \fBTcl_ZlibInflate\fR take a value with arbitrary
+reference count for their \fIdataObj\fR and \fIdictObj\fR arguments (the
+latter often being NULL instead), and set the interpreter result with their
+output value (or an error).  The existing interpreter result should not be
+passed as any argument value unless an additional reference is held.
+.PP
+\fBTcl_ZlibStreamInit\fR takes a value with arbitrary reference count for its
+\fIdictObj\fR argument; it only reads from it. The existing interpreter result
+should not be passed unless an additional reference is held.
+.PP
+\fBTcl_ZlibStreamGetCommandName\fR returns a zero reference count value, much
+like \fBTcl_NewObj\fR.
+.PP
+The \fIdataObj\fR argument to \fBTcl_ZlibStreamPut\fR is a value with
+arbitrary reference count; it is only ever read from.
+.PP
+The \fIdataObj\fR argument to \fBTcl_ZlibStreamGet\fR is an unshared value
+(see \fBTcl_IsShared\fR) that will be updated by the function.
+.PP
+The \fIcompDict\fR argument to \fBTcl_ZlibStreamSetCompressionDictionary\fR,
+if non-NULL, may be duplicated or may have its reference count incremented.
+Using a zero reference count value is not recommended.
+
+.SH "PORTABILITY NOTES"
+These functions will fail gracefully if Tcl is not linked with the zlib
+library.
+.SH "SEE ALSO"
+Tcl_NewByteArrayObj(3), zlib(n)
+'\"Tcl_StackChannel(3)
+.SH "KEYWORDS"
+compress, decompress, deflate, gzip, inflate
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/Tcl_Main.3 b/doc/Tcl_Main.3
index 4b4ceb7..6410450 100644
--- a/doc/Tcl_Main.3
+++ b/doc/Tcl_Main.3
@@ -5,32 +5,55 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-.TH Tcl_Main 3 8.4 Tcl "Tcl Library Procedures"
+'\"
+.TH Tcl_Main 3 9.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_Main, Tcl_SetMainLoop \- main program and event loop definition for Tcl-based applications
+Tcl_Main, Tcl_MainEx, Tcl_MainExW, Tcl_SetStartupScript, Tcl_GetStartupScript, Tcl_SetMainLoop \- main program, startup script, and event loop definition for Tcl-based applications
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
 .sp
 \fBTcl_Main\fR(\fIargc, argv, appInitProc\fR)
 .sp
+\fBTcl_MainEx\fR(\fIargc, charargv, appInitProc, interp\fR)
+.sp
+\fBTcl_MainExW\fR(\fIargc, wideargv, appInitProc, interp\fR)
+.sp
+\fBTcl_SetStartupScript\fR(\fIpath, encoding\fR)
+.sp
+Tcl_Obj *
+\fBTcl_GetStartupScript\fR(\fIencodingPtr\fR)
+.sp
 \fBTcl_SetMainLoop\fR(\fImainLoopProc\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_MainLoopProc *mainLoopProc
-.AP int argc in
+.AP Tcl_Size argc in
 Number of elements in \fIargv\fR.
 .AP char *argv[] in
-Array of strings containing command-line arguments.
+Array of strings containing command-line arguments. On Windows, when
+using -DUNICODE, the parameter type changes to wchar_t *.
+.AP char *charargv[] in
+As argv, but does not change type to wchar_t.
+.AP char *wideargv[] in
+As argv, but type is always wchar_t.
 .AP Tcl_AppInitProc *appInitProc in
 Address of an application-specific initialization procedure.
 The value for this argument is usually \fBTcl_AppInit\fR.
+.AP Tcl_Obj *path in
+Name of file to use as startup script, or NULL.
+.AP "const char" *encoding in
+Encoding of file to use as startup script, or NULL.
+.AP "const char" **encodingPtr out
+If non-NULL, location to write a copy of the (const char *)
+pointing to the encoding name.
 .AP Tcl_MainLoopProc *mainLoopProc in
 Address of an application-specific event loop procedure.
+.AP Tcl_Interp *interp in
+Already created Tcl Interpreter.
 .BE
-
 .SH DESCRIPTION
 .PP
 \fBTcl_Main\fR can serve as the main program for Tcl-based shell
@@ -40,13 +63,13 @@ is a program
 like tclsh or wish that supports both interactive interpretation
 of Tcl and evaluation of a script contained in a file given as
 a command line argument.  \fBTcl_Main\fR is offered as a convenience
-to developers of shell applications, so they do not have to 
+to developers of shell applications, so they do not have to
 reproduce all of the code for proper initialization of the Tcl
 library and interactive shell operation.  Other styles of embedding
 Tcl in an application are not supported by \fBTcl_Main\fR.  Those
 must be achieved by calling lower level functions in the Tcl library
 directly.
-
+.PP
 The \fBTcl_Main\fR function has been offered by the Tcl library
 since release Tcl 7.4.  In older releases of Tcl, the Tcl library
 itself defined a function \fBmain\fR, but that lacks flexibility
@@ -63,11 +86,13 @@ that does nothing but invoke \fBTcl_Main\fR.
 .PP
 \fBTcl_Main\fR is not provided by the public interface of Tcl's
 stub library.  Programs that call \fBTcl_Main\fR must be linked
-against the standard Tcl library.  Extensions (stub-enabled or
-not) are not intended to call \fBTcl_Main\fR.
+against the standard Tcl library.  If the standard Tcl library is
+a dll (so, not a static .lib/.a) , then the program must be linked
+against the stub library as well. Extensions
+(stub-enabled or not) are not intended to call \fBTcl_Main\fR.
 .PP
 \fBTcl_Main\fR is not thread-safe.  It should only be called by
-a single master thread of a multi-threaded application.  This
+a single main thread of a multi-threaded application.  This
 restriction is not a problem with normal use described above.
 .PP
 \fBTcl_Main\fR and therefore all applications based upon it, like
@@ -75,17 +100,46 @@ restriction is not a problem with normal use described above.
 channels to their default values. See \fBTcl_StandardChannels\fR for
 more information.
 .PP
-\fBTcl_Main\fR supports two modes of operation, depending on the
-values of \fIargc\fR and \fIargv\fR.  If the first few arguments
-in \fIargv\fR match ?\fB\-encoding \fIname\fR? \fIfileName\fR,
+\fBTcl_Main\fR supports two modes of operation, depending on
+whether the filename and encoding of a startup script has been
+established.  The routines \fBTcl_SetStartupScript\fR and
+\fBTcl_GetStartupScript\fR are the tools for controlling this
+configuration of \fBTcl_Main\fR.
+.PP
+\fBTcl_SetStartupScript\fR registers the value \fIpath\fR
+as the name of the file for \fBTcl_Main\fR to evaluate as
+its startup script.  The value \fIencoding\fR is Tcl's name
+for the encoding used to store the text in that file.  A
+value of \fBNULL\fR for \fIencoding\fR is a signal to use
+the system encoding.  A value of \fBNULL\fR for \fIpath\fR
+erases any existing registration so that \fBTcl_Main\fR
+will not evaluate any startup script.
+.PP
+\fBTcl_GetStartupScript\fR queries the registered file name
+and encoding set by the most recent \fBTcl_SetStartupScript\fR
+call in the same thread.  The stored file name is returned,
+and the stored encoding name is written to space pointed to
+by \fIencodingPtr\fR, when that is not NULL.
+.PP
+The file name and encoding values managed by the routines
+\fBTcl_SetStartupScript\fR and \fBTcl_GetStartupScript\fR
+are stored per-thread.  Although the storage and retrieval
+functions of these routines work in any thread, only those
+calls in the same main thread as \fBTcl_Main\fR can have
+any influence on it.
+.PP
+The caller of \fBTcl_Main\fR may call \fBTcl_SetStartupScript\fR
+first to establish its desired startup script.  If \fBTcl_Main\fR
+finds that no such startup script has been established, it consults
+the first few arguments in \fIargv\fR.  If they match
+?\fB\-encoding \fIname\fR? \fIfileName\fR,
 where \fIfileName\fR does not begin with the character \fI\-\fR,
 then \fIfileName\fR is taken to be the name of a file containing
 a \fIstartup script\fR, and \fIname\fR is taken to be the name
-of the encoding of the contents of that file, which \fBTcl_Main\fR
-will attempt to evaluate.  Otherwise, \fBTcl_Main\fR will enter an
-interactive mode.
+of the encoding of the contents of that file.  \fBTcl_Main\fR
+then calls \fBTcl_SetStartupScript\fR with these values.
 .PP
-In either mode, \fBTcl_Main\fR will define in its master interpreter
+\fBTcl_Main\fR then defines in its main interpreter
 the Tcl variables \fIargc\fR, \fIargv\fR, \fIargv0\fR, and
 \fItcl_interactive\fR, as described in the documentation for \fBtclsh\fR.
 .PP
@@ -95,22 +149,27 @@ commands, \fBTcl_Main\fR calls the procedure given by the
 .QW hook
 for the application to perform its own initialization of the interpreter
 created by \fBTcl_Main\fR, such as defining application-specific
-commands.  The procedure must have an interface that matches the
-type \fBTcl_AppInitProc\fR:
+commands.  The application initialization routine might also
+call \fBTcl_SetStartupScript\fR to (re-)set the file and encoding
+to be used as a startup script.  The procedure must have an interface
+that matches the type \fBTcl_AppInitProc\fR:
+.PP
 .CS
-typedef int Tcl_AppInitProc(Tcl_Interp *\fIinterp\fR);
+typedef int \fBTcl_AppInitProc\fR(
+        Tcl_Interp *\fIinterp\fR);
 .CE
-
+.PP
 \fIAppInitProc\fR is almost always a pointer to \fBTcl_AppInit\fR; for more
 details on this procedure, see the documentation for \fBTcl_AppInit\fR.
 .PP
-When the \fIappInitProc\fR is finished, \fBTcl_Main\fR enters one
-of its two modes.  If a startup script has been provided, \fBTcl_Main\fR
-attempts to evaluate it.  Otherwise, interactive mode begins with
-examination of the variable \fItcl_rcFileName\fR in the master
-interpreter.  If that variable exists and holds the name of a readable
-file, the contents of that file are evaluated in the master interpreter.
-Then interactive operations begin,
+When the \fIappInitProc\fR is finished, \fBTcl_Main\fR calls
+\fBTcl_GetStartupScript\fR to determine what startup script has
+been requested, if any.  If a startup script has been provided,
+\fBTcl_Main\fR attempts to evaluate it.  Otherwise, interactive
+mode begins with examination of the variable \fItcl_rcFileName\fR
+in the main interpreter.  If that variable exists and holds the
+name of a readable file, the contents of that file are evaluated
+in the main interpreter.  Then interactive operations begin,
 with prompts and command evaluation results written to the standard
 output channel, and commands read from the standard input channel
 and then evaluated.  The prompts written to the standard output
@@ -118,7 +177,7 @@ channel may be customized by defining the Tcl variables \fItcl_prompt1\fR
 and \fItcl_prompt2\fR as described in the documentation for \fBtclsh\fR.
 The prompts and command evaluation results are written to the standard
 output channel only if the Tcl variable \fItcl_interactive\fR in the
-master interpreter holds a non-zero integer value.
+main interpreter holds a non-zero integer value.
 .PP
 \fBTcl_SetMainLoop\fR allows setting an event loop procedure to be run.
 This allows, for example, Tk to be dynamically loaded and set its event
@@ -129,8 +188,9 @@ When the loop procedure returns in interactive mode, interactive operation
 will continue.
 The main loop procedure must have an interface that matches the type
 \fBTcl_MainLoopProc\fR:
+.PP
 .CS
-typedef void Tcl_MainLoopProc(void);
+typedef void \fBTcl_MainLoopProc\fR(void);
 .CE
 .PP
 \fBTcl_Main\fR does not return.  Normally a program based on
@@ -142,10 +202,24 @@ procedure (if any) returns.  In non-interactive mode, after
 \fBTcl_Main\fR evaluates the startup script, and the main loop
 procedure (if any) returns, \fBTcl_Main\fR will also evaluate
 the \fBexit\fR command.
-
+.PP
+\fBTcl_Main\fR can not be used in stub-enabled extensions.
+.PP
+The difference between Tcl_MainEx and Tcl_MainExW is that the arguments
+are passed as characters or wide characters. When used in stub-enabled
+embedders, the stubs table must be first initialized using one of
+\fBTcl_InitSubsystems\fR, \fBTcl_SetPanicProc\fR, \fBTcl_FindExecutable\fR or \fBTclZipfs_AppHook\fR.
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+\fBTcl_SetStartupScript\fR takes a value (or NULL) for its \fIpath\fR
+argument, and will increment the reference count of it.
+.PP
+\fBTcl_GetStartupScript\fR returns a value with reference count at least 1, or
+NULL. It's \fIencodingPtr\fR is also used (if non-NULL) to return a value with
+a reference count at least 1, or NULL. In both cases, the owner of the values
+is the current thread.
 .SH "SEE ALSO"
 tclsh(1), Tcl_GetStdChannel(3), Tcl_StandardChannels(3), Tcl_AppInit(3),
-exit(n)
-
+exit(n), encoding(n)
 .SH KEYWORDS
 application-specific initialization, command-line arguments, main program
diff --git a/doc/Thread.3 b/doc/Thread.3
index 5517a41..2e5cd0a 100644
--- a/doc/Thread.3
+++ b/doc/Thread.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Threads 3 "8.1" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -14,39 +14,36 @@ Tcl_ConditionNotify, Tcl_ConditionWait, Tcl_ConditionFinalize, Tcl_GetThreadData
 .nf
 \fB#include <tcl.h>\fR
 .sp
-void
 \fBTcl_ConditionNotify\fR(\fIcondPtr\fR)
 .sp
-void
 \fBTcl_ConditionWait\fR(\fIcondPtr, mutexPtr, timePtr\fR)
 .sp
-void
 \fBTcl_ConditionFinalize\fR(\fIcondPtr\fR)
 .sp
-Void *
+void *
 \fBTcl_GetThreadData\fR(\fIkeyPtr, size\fR)
 .sp
-void
 \fBTcl_MutexLock\fR(\fImutexPtr\fR)
 .sp
-void
 \fBTcl_MutexUnlock\fR(\fImutexPtr\fR)
 .sp
-void
 \fBTcl_MutexFinalize\fR(\fImutexPtr\fR)
 .sp
 int
-\fBTcl_CreateThread\fR(\fIidPtr, threadProc, clientData, stackSize, flags\fR)
+\fBTcl_CreateThread\fR(\fIidPtr, proc, clientData, stackSize, flags\fR)
 .sp
 int
 \fBTcl_JoinThread\fR(\fIid, result\fR)
+.fi
 .SH ARGUMENTS
-.AS Tcl_CreateThreadProc threadProc out
+.AS Tcl_CreateThreadProc proc out
 .AP Tcl_Condition *condPtr in
 A condition variable, which must be associated with a mutex lock.
 .AP Tcl_Mutex *mutexPtr in
-A mutex lock.
-.AP Tcl_Time *timePtr in
+.VS TIP509
+A recursive mutex lock.
+.VE TIP509
+.AP "const Tcl_Time" *timePtr in
 A time limit on the condition wait.  NULL to wait forever.
 Note that a polling value of 0 seconds does not make much sense.
 .AP Tcl_ThreadDataKey *keyPtr in
@@ -62,15 +59,15 @@ The referred storage will contain the id of the newly created thread as
 returned by the operating system.
 .AP Tcl_ThreadId id in
 Id of the thread waited upon.
-.AP Tcl_ThreadCreateProc threadProc in
+.AP Tcl_ThreadCreateProc *proc in
 This procedure will act as the \fBmain()\fR of the newly created
 thread. The specified \fIclientData\fR will be its sole argument.
-.AP ClientData clientData in
-Arbitrary information. Passed as sole argument to the \fIthreadProc\fR.
-.AP int stackSize in
+.AP void *clientData in
+Arbitrary information. Passed as sole argument to the \fIproc\fR.
+.AP size_t stackSize in
 The size of the stack given to the new thread.
 .AP int flags in
-Bitmask containing flags allowing the caller to modify behaviour of
+Bitmask containing flags allowing the caller to modify behavior of
 the new thread.
 .AP int *result out
 The referred storage is used to place the exit code of the thread
@@ -79,9 +76,7 @@ waited upon into it.
 .SH INTRODUCTION
 Beginning with the 8.1 release, the Tcl core is thread safe, which
 allows you to incorporate Tcl into multithreaded applications without
-customizing the Tcl core.  To enable Tcl multithreading support,
-you must include the \fB\-\|\-enable-threads\fR option to \fBconfigure\fR
-when you configure and compile your Tcl core.
+customizing the Tcl core.
 .PP
 An important constraint of the Tcl threads implementation is that
 \fIonly the thread that created a Tcl interpreter can use that
@@ -91,15 +86,15 @@ and use multiple interpreters.)
 .SH DESCRIPTION
 Tcl provides \fBTcl_CreateThread\fR for creating threads. The
 caller can determine the size of the stack given to the new thread and
-modify the behaviour through the supplied \fIflags\fR. The value
+modify the behavior through the supplied \fIflags\fR. The value
 \fBTCL_THREAD_STACK_DEFAULT\fR for the \fIstackSize\fR indicates that
 the default size as specified by the operating system is to be used
 for the new thread. As for the flags, currently only the values
 \fBTCL_THREAD_NOFLAGS\fR and \fBTCL_THREAD_JOINABLE\fR are defined. The
-first of them invokes the default behaviour with no
-specialties. Using the second value marks the new thread as
-\fIjoinable\fR. This means that another thread can wait for the such
-marked thread to exit and join it.
+first of them invokes the default behavior with no special settings.
+Using the second value marks the new thread as \fIjoinable\fR. This
+means that another thread can wait for the such marked thread to exit
+and join it.
 .PP
 Restrictions: On some UNIX systems the pthread-library does not
 contain the functionality to specify the stack size of a thread. The
@@ -126,7 +121,7 @@ will cause a memory leak.
 .PP
 The \fBTcl_GetThreadData\fR call returns a pointer to a block of
 thread-private data.  Its argument is a key that is shared by all threads
-and a size for the block of storage.  The storage is automatically 
+and a size for the block of storage.  The storage is automatically
 allocated and initialized to all zeros the first time each thread asks for it.
 The storage is automatically deallocated by \fBTcl_FinalizeThread\fR.
 .SS "SYNCHRONIZATION AND COMMUNICATION"
@@ -139,8 +134,12 @@ of code by calling \fBTcl_MutexLock\fR and \fBTcl_MutexUnlock\fR.
 If one thread holds a mutex, any other thread calling \fBTcl_MutexLock\fR will
 block until \fBTcl_MutexUnlock\fR is called.
 A mutex can be destroyed after its use by calling \fBTcl_MutexFinalize\fR.
-The result of locking a mutex twice from the same thread is undefined.
-On some platforms it will result in a deadlock.
+.VS TIP509
+Mutexes are reentrant: they can be locked several times from the same
+thread. However there must be exactly one call to
+\fBTcl_MutexUnlock\fR for each call to \fBTcl_MutexLock\fR in order
+for a thread to release a mutex completely.
+.VE TIP509
 The \fBTcl_MutexLock\fR, \fBTcl_MutexUnlock\fR and \fBTcl_MutexFinalize\fR
 procedures are defined as empty macros if not compiling with threads enabled.
 For declaration of mutexes the \fBTCL_DECLARE_MUTEX\fR macro should be used.
@@ -180,13 +179,59 @@ explicitly by calls to \fBTcl_MutexFinalize\fR or
 \fBTcl_ConditionFinalize\fR.
 Thread local storage is reclaimed during \fBTcl_FinalizeThread\fR.
 .SH "SCRIPT-LEVEL ACCESS TO THREADS"
-.VS 8.5
+.PP
 Tcl provides no built-in commands for scripts to use to create,
 manage, or join threads, nor any script-level access to mutex or
 condition variables.  It provides such facilities only via C
 interfaces, and leaves it up to packages to expose these matters to
 the script level.  One such package is the \fBThread\fR package.
-.VE 8.5
+.SH EXAMPLE
+.PP
+To create a thread with portable code, its implementation function should be
+declared as follows:
+.PP
+.CS
+static \fBTcl_ThreadCreateProc\fR MyThreadImplFunc;
+.CE
+.PP
+It should then be defined like this example, which just counts up to a given
+value and then finishes.
+.PP
+.CS
+static \fBTcl_ThreadCreateType\fR
+MyThreadImplFunc(
+    void *clientData)
+{
+    int i, limit = (int) clientData;
+    for (i=0 ; i<limit ; i++) {
+        /* doing nothing at all here */
+    }
+    \fBTCL_THREAD_CREATE_RETURN\fR;
+}
+.CE
+.PP
+To create the above thread, make it execute, and wait for it to finish, we
+would do this:
+.PP
+.CS
+int limit = 1000000000;
+void *limitData = (void*)((intptr_t) limit);
+Tcl_ThreadId id;    \fI/* holds identity of thread created */\fR
+int result;
+
+if (\fBTcl_CreateThread\fR(&id, MyThreadImplFunc, limitData,
+        \fBTCL_THREAD_STACK_DEFAULT\fR,
+        \fBTCL_THREAD_JOINABLE\fR) != TCL_OK) {
+    \fI/* Thread did not create correctly */\fR
+    return;
+}
+\fI/* Do something else for a while here */\fR
+if (\fBTcl_JoinThread\fR(id, &result) != TCL_OK) {
+    \fI/* Thread did not finish properly */\fR
+    return;
+}
+\fI/* All cleaned up nicely */\fR
+.CE
 .SH "SEE ALSO"
 Tcl_GetCurrentThread(3), Tcl_ThreadQueueEvent(3), Tcl_ThreadAlert(3),
 Tcl_ExitThread(3), Tcl_FinalizeThread(3), Tcl_CreateThreadExitHandler(3),
diff --git a/doc/ToUpper.3 b/doc/ToUpper.3
index ef3e491..580a5b3 100644
--- a/doc/ToUpper.3
+++ b/doc/ToUpper.3
@@ -1,9 +1,9 @@
 '\"
-'\" Copyright (c) 1997 by Sun Microsystems, Inc.
+'\" Copyright (c) 1997 Sun Microsystems, Inc.
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_UtfToUpper 3 "8.1" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -13,27 +13,28 @@ Tcl_UniCharToUpper, Tcl_UniCharToLower, Tcl_UniCharToTitle, Tcl_UtfToUpper, Tcl_
 .nf
 \fB#include <tcl.h>\fR
 .sp
-Tcl_UniChar
+int
 \fBTcl_UniCharToUpper\fR(\fIch\fR)
 .sp
-Tcl_UniChar
+int
 \fBTcl_UniCharToLower\fR(\fIch\fR)
 .sp
-Tcl_UniChar
+int
 \fBTcl_UniCharToTitle\fR(\fIch\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_UtfToUpper\fR(\fIstr\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_UtfToLower\fR(\fIstr\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_UtfToTitle\fR(\fIstr\fR)
+.fi
 .SH ARGUMENTS
 .AS char *str in/out
 .AP int ch in
-The Tcl_UniChar to be converted.
+The Unicode character to be converted.
 .AP char *str in/out
 Pointer to UTF-8 string to be converted in place.
 .BE
@@ -78,11 +79,5 @@ turns each character in the string into its lower-case equivalent.
 turns the first character in the string into its title-case equivalent
 and all following characters into their lower-case equivalents.
 
-.SH BUGS
-.PP
-At this time, the case conversions are only defined for the ISO8859-1
-characters.  Unicode characters above 0x00FF are not modified by these
-routines.
-
 .SH KEYWORDS
 utf, unicode, toupper, tolower, totitle, case
diff --git a/doc/TraceCmd.3 b/doc/TraceCmd.3
index ed7f365..c1f2cbb 100644
--- a/doc/TraceCmd.3
+++ b/doc/TraceCmd.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_TraceCommand 3 7.4 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -13,14 +13,14 @@ Tcl_CommandTraceInfo, Tcl_TraceCommand, Tcl_UntraceCommand \- monitor renames an
 .nf
 \fB#include <tcl.h>\fR
 .sp
-ClientData
-\fBTcl_CommandTraceInfo(\fIinterp, cmdName, flags, proc, prevClientData\fB)\fR
+void *
+\fBTcl_CommandTraceInfo\fR(\fIinterp, cmdName, flags, proc, prevClientData\fR)
 .sp
 int
-\fBTcl_TraceCommand(\fIinterp, cmdName, flags, proc, clientData\fB)\fR
+\fBTcl_TraceCommand\fR(\fIinterp, cmdName, flags, proc, clientData\fR)
 .sp
-void
-\fBTcl_UntraceCommand(\fIinterp, cmdName, flags, proc, clientData\fB)\fR
+\fBTcl_UntraceCommand\fR(\fIinterp, cmdName, flags, proc, clientData\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_CommandTraceProc prevClientData
 .AP Tcl_Interp *interp in
@@ -32,9 +32,9 @@ OR'ed collection of the values \fBTCL_TRACE_RENAME\fR and
 \fBTCL_TRACE_DELETE\fR.
 .AP Tcl_CommandTraceProc *proc in
 Procedure to call when specified operations occur to \fIcmdName\fR.
-.AP ClientData clientData in
+.AP void *clientData in
 Arbitrary argument to pass to \fIproc\fR.
-.AP ClientData prevClientData in
+.AP void *prevClientData in
 If non-NULL, gives last value returned by \fBTcl_CommandTraceInfo\fR,
 so this call will return information about next trace.  If NULL, this
 call will return information about first trace.
@@ -54,25 +54,29 @@ trace procedure is to be invoked.  It consists of an OR'ed combination
 of any of the following values:
 .TP
 \fBTCL_TRACE_RENAME\fR
+.
 Invoke \fIproc\fR whenever the command is renamed.
 .TP
 \fBTCL_TRACE_DELETE\fR
+.
 Invoke \fIproc\fR when the command is deleted.
 .PP
 Whenever one of the specified operations occurs to the command,
 \fIproc\fR will be invoked.  It should have arguments and result that
 match the type \fBTcl_CommandTraceProc\fR:
+.PP
 .CS
-typedef void Tcl_CommandTraceProc(
-        ClientData \fIclientData\fR,
+typedef void \fBTcl_CommandTraceProc\fR(
+        void *\fIclientData\fR,
         Tcl_Interp *\fIinterp\fR,
         const char *\fIoldName\fR,
         const char *\fInewName\fR,
         int \fIflags\fR);
 .CE
+.PP
 The \fIclientData\fR and \fIinterp\fR parameters will have the same
 values as those passed to \fBTcl_TraceCommand\fR when the trace was
-created.  \fIClientData\fR typically points to an application-specific
+created.  \fIclientData\fR typically points to an application-specific
 data structure that describes what to do when \fIproc\fR is invoked.
 \fIOldName\fR gives the name of the command being renamed, and
 \fInewName\fR gives the name that the command is being renamed to (or
diff --git a/doc/TraceVar.3 b/doc/TraceVar.3
index caafcf1..3fb3ab6 100644
--- a/doc/TraceVar.3
+++ b/doc/TraceVar.3
@@ -4,8 +4,8 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-.TH Tcl_TraceVar 3 7.4 Tcl "Tcl Library Procedures"
+'\"
+.TH Tcl_TraceVar 3 9.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
@@ -15,22 +15,23 @@ Tcl_TraceVar, Tcl_TraceVar2, Tcl_UntraceVar, Tcl_UntraceVar2, Tcl_VarTraceInfo,
 \fB#include <tcl.h>\fR
 .sp
 int
-\fBTcl_TraceVar(\fIinterp, varName, flags, proc, clientData\fB)\fR
+\fBTcl_TraceVar\fR(\fIinterp, varName, flags, proc, clientData\fR)
 .sp
 int
-\fBTcl_TraceVar2(\fIinterp, name1, name2, flags, proc, clientData\fB)\fR
+\fBTcl_TraceVar2\fR(\fIinterp, name1, name2, flags, proc, clientData\fR)
 .sp
-\fBTcl_UntraceVar(\fIinterp, varName, flags, proc, clientData\fB)\fR
+\fBTcl_UntraceVar\fR(\fIinterp, varName, flags, proc, clientData\fR)
 .sp
-\fBTcl_UntraceVar2(\fIinterp, name1, name2, flags, proc, clientData\fB)\fR
+\fBTcl_UntraceVar2\fR(\fIinterp, name1, name2, flags, proc, clientData\fR)
 .sp
-ClientData
-\fBTcl_VarTraceInfo(\fIinterp, varName, flags, proc, prevClientData\fB)\fR
+void *
+\fBTcl_VarTraceInfo\fR(\fIinterp, varName, flags, proc, prevClientData\fR)
 .sp
-ClientData
-\fBTcl_VarTraceInfo2(\fIinterp, name1, name2, flags, proc, prevClientData\fB)\fR
+void *
+\fBTcl_VarTraceInfo2\fR(\fIinterp, name1, name2, flags, proc, prevClientData\fR)
+.fi
 .SH ARGUMENTS
-.AS Tcl_VarTraceProc prevClientData
+.AS void *prevClientData
 .AP Tcl_Interp *interp in
 Interpreter containing variable.
 .AP "const char" *varName in
@@ -46,7 +47,7 @@ Not all flags are used by all
 procedures.  See below for more information.
 .AP Tcl_VarTraceProc *proc in
 Procedure to invoke whenever one of the traced operations occurs.
-.AP ClientData clientData in
+.AP void *clientData in
 Arbitrary one-word value to pass to \fIproc\fR.
 .AP "const char" *name1 in
 Name of scalar or array variable (without array index).
@@ -54,7 +55,7 @@ Name of scalar or array variable (without array index).
 For a trace on an element of an array, gives the index of the
 element.  For traces on scalar variables or on whole arrays,
 is NULL.
-.AP ClientData prevClientData in
+.AP void *prevClientData in
 If non-NULL, gives last value returned by \fBTcl_VarTraceInfo\fR or
 \fBTcl_VarTraceInfo2\fR, so this call will return information about
 next trace.  If NULL, this call will return information about first
@@ -76,41 +77,49 @@ for setting up the trace.  It consists of an OR-ed combination
 of any of the following values:
 .TP
 \fBTCL_GLOBAL_ONLY\fR
+.
 Normally, the variable will be looked up at the current level of
 procedure call;  if this bit is set then the variable will be looked
 up at global level, ignoring any active procedures.
 .TP
 \fBTCL_NAMESPACE_ONLY\fR
+.
 Normally, the variable will be looked up at the current level of
 procedure call;  if this bit is set then the variable will be looked
 up in the current namespace, ignoring any active procedures.
 .TP
 \fBTCL_TRACE_READS\fR
+.
 Invoke \fIproc\fR whenever an attempt is made to read the variable.
 .TP
 \fBTCL_TRACE_WRITES\fR
+.
 Invoke \fIproc\fR whenever an attempt is made to modify the variable.
 .TP
 \fBTCL_TRACE_UNSETS\fR
+.
 Invoke \fIproc\fR whenever the variable is unset.
 A variable may be unset either explicitly by an \fBunset\fR command,
 or implicitly when a procedure returns (its local variables are
-automatically unset) or when the interpreter is deleted (all
+automatically unset) or when the interpreter or namespace is deleted (all
 variables are automatically unset).
 .TP
 \fBTCL_TRACE_ARRAY\fR
+.
 Invoke \fIproc\fR whenever the array command is invoked.
 This gives the trace procedure a chance to update the array before
 array names or array get is called.  Note that this is called
 before an array set, but that will trigger write traces.
 .TP
 \fBTCL_TRACE_RESULT_DYNAMIC\fR
+.
 The result of invoking the \fIproc\fR is a dynamically allocated
 string that will be released by the Tcl library via a call to
-\fBckfree\fR.  Must not be specified at the same time as
+\fBTcl_Free\fR.  Must not be specified at the same time as
 \fBTCL_TRACE_RESULT_OBJECT\fR.
 .TP
 \fBTCL_TRACE_RESULT_OBJECT\fR
+.
 The result of invoking the \fIproc\fR is a Tcl_Obj* (cast to a char*)
 with a reference count of at least one.  The ownership of that
 reference will be transferred to the Tcl core for release (when the
@@ -121,23 +130,27 @@ Whenever one of the specified operations occurs on the variable,
 \fIproc\fR will be invoked.
 It should have arguments and result that match the type
 \fBTcl_VarTraceProc\fR:
+.PP
 .CS
-typedef char *Tcl_VarTraceProc(
-        ClientData \fIclientData\fR,
+typedef char *\fBTcl_VarTraceProc\fR(
+        void *\fIclientData\fR,
         Tcl_Interp *\fIinterp\fR,
-        char *\fIname1\fR,
-        char *\fIname2\fR,
+        const char *\fIname1\fR,
+        const char *\fIname2\fR,
         int \fIflags\fR);
 .CE
+.PP
 The \fIclientData\fR and \fIinterp\fR parameters will
 have the same values as those passed to \fBTcl_TraceVar\fR when the
 trace was created.
-\fIClientData\fR typically points to an application-specific
+\fIclientData\fR typically points to an application-specific
 data structure that describes what to do when \fIproc\fR
 is invoked.
-\fIName1\fR and \fIname2\fR give the name of the traced variable
-in the normal two-part form (see the description of \fBTcl_TraceVar2\fR
-below for details).
+\fIName1\fR and \fIname2\fR give the name of the variable that
+triggered the callback in the normal two-part form (see the description
+of \fBTcl_TraceVar2\fR below for details).  In case \fIname1\fR is an
+alias to an array element (created through facilities such as \fBupvar\fR),
+\fIname2\fR holds the index of the array element, rather than NULL.
 \fIFlags\fR is an OR-ed combination of bits providing several
 pieces of information.
 One of the bits \fBTCL_TRACE_READS\fR, \fBTCL_TRACE_WRITES\fR,
@@ -158,10 +171,6 @@ The bit \fBTCL_TRACE_DESTROYED\fR will be set in \fIflags\fR if the trace is
 about to be destroyed;  this information may be useful to \fIproc\fR
 so that it can clean up its own internal data structures (see
 the section \fBTCL_TRACE_DESTROYED\fR below for more details).
-Lastly, the bit \fBTCL_INTERP_DESTROYED\fR will be set if the entire
-interpreter is being destroyed.
-When this bit is set, \fIproc\fR must be especially careful in
-the things it does (see the section \fBTCL_INTERP_DESTROYED\fR below).
 The trace procedure's return value should normally be NULL;  see
 \fBERROR RETURNS\fR below for information on other possibilities.
 .PP
@@ -201,7 +210,7 @@ The procedures \fBTcl_TraceVar2\fR, \fBTcl_UntraceVar2\fR, and
 except that the name of the variable consists of two parts.
 \fIName1\fR gives the name of a scalar variable or array,
 and \fIname2\fR gives the name of an element within an array.
-When \fIname2\fR is NULL, 
+When \fIname2\fR is NULL,
 \fIname1\fR may contain both an array and an element name:
 if the name contains an open parenthesis and ends with a
 close parenthesis, then the value between the parentheses is
@@ -212,7 +221,7 @@ If \fIname2\fR is NULL and \fIname1\fR does not refer
 to an array element it means that either the variable is
 a scalar or the trace is to be set on the entire array rather
 than an individual element (see WHOLE-ARRAY TRACES below for
-more information). 
+more information).
 .SH "ACCESSING VARIABLES DURING TRACES"
 .PP
 During read, write, and array traces, the
@@ -310,7 +319,7 @@ The return value must be a pointer to a static character string
 containing an error message,
 unless (\fIexactly\fR one of) the \fBTCL_TRACE_RESULT_DYNAMIC\fR and
 \fBTCL_TRACE_RESULT_OBJECT\fR flags is set, which specify that the result is
-either a dynamic string (to be released with \fBckfree\fR) or a
+either a dynamic string (to be released with \fBTcl_Free\fR) or a
 Tcl_Obj* (cast to char* and to be released with
 \fBTcl_DecrRefCount\fR) containing the error message.
 If a trace procedure returns an error, no further traces are
@@ -328,6 +337,16 @@ During unset traces, the return value is ignored and all relevant
 trace procedures will always be invoked.
 .SH "RESTRICTIONS"
 .PP
+Because operations on variables may take place as part of the deletion
+of the interp that contains them, \fIproc\fR must be careful about checking
+what the \fIinterp\fR parameter can be used to do.
+The routine \fBTcl_InterpDeleted\fR is an important tool for this.
+When \fBTcl_InterpDeleted\fR returns 1, \fIproc\fR will not be able
+to invoke any scripts in \fIinterp\fR. You may encounter old code using
+a deprecated flag value \fBTCL_INTERP_DESTROYED\fR to signal this
+condition, but Tcl 9 no longer supports this. Any supported code
+must be converted to stop using it.
+.PP
 A trace procedure can be called at any time, even when there
 are partially formed results stored in the interpreter.  If
 the trace procedure does anything that could damage this result (such
@@ -352,25 +371,19 @@ Traces on a variable are always removed whenever the variable
 is deleted;  the only time \fBTCL_TRACE_DESTROYED\fR is not set is for
 a whole-array trace invoked when only a single element of an
 array is unset.
-.SH "TCL_INTERP_DESTROYED"
+.SH "REFERENCE COUNT MANAGEMENT"
 .PP
-When an interpreter is destroyed, unset traces are called for
-all of its variables.
-The \fBTCL_INTERP_DESTROYED\fR bit will be set in the \fIflags\fR
-argument passed to the trace procedures.
-Trace procedures must be extremely careful in what they do if
-the \fBTCL_INTERP_DESTROYED\fR bit is set.
-It is not safe for the procedures to invoke any Tcl procedures
-on the interpreter, since its state is partially deleted.
-All that trace procedures should do under these circumstances is
-to clean up and free their own internal data structures.
+When a \fIproc\fR callback is invoked, and that callback was installed with
+the \fBTCL_TRACE_RESULT_OBJECT\fR flag, the result of the callback is a
+Tcl_Obj reference when there is an error. The result will have its reference
+count decremented once when no longer needed, or may have additional
+references made to it (e.g., by setting it as the interpreter result with
+\fBTcl_SetObjResult\fR).
 .SH BUGS
 .PP
-Tcl does not do any error checking to prevent trace procedures
-from misusing the interpreter during traces with \fBTCL_INTERP_DESTROYED\fR
-set.
-.PP
 Array traces are not yet integrated with the Tcl \fBinfo exists\fR command,
 nor is there Tcl-level access to array traces.
+.SH "SEE ALSO"
+trace(n)
 .SH KEYWORDS
 clientData, trace, variable
diff --git a/doc/Translate.3 b/doc/Translate.3
index 7b8acc9..0b6db29 100644
--- a/doc/Translate.3
+++ b/doc/Translate.3
@@ -4,49 +4,48 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_TranslateFileName 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_TranslateFileName \- convert file name to native form and replace tilde with home directory
+Tcl_TranslateFileName \- convert file name to native form
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
 .sp
 char *
 \fBTcl_TranslateFileName\fR(\fIinterp\fR, \fIname\fR, \fIbufferPtr\fR)
+.fi
 .SH ARGUMENTS
 .AS Tcl_DString *bufferPtr in/out
 .AP Tcl_Interp *interp in
 Interpreter in which to report an error, if any.
 .AP "const char" *name in
-File name, which may start with a
-.QW ~ .
+File name
 .AP Tcl_DString *bufferPtr in/out
 If needed, this dynamic string is used to store the new file name.
 At the time of the call it should be uninitialized or free.  The
 caller must eventually call \fBTcl_DStringFree\fR to free up
 anything stored here.
 .BE
-
 .SH DESCRIPTION
 .PP
 This utility procedure translates a file name to a platform-specific form
 which, after being converted to the appropriate encoding, is suitable for
 passing to the local operating system.  In particular, it converts
-network names into native form and does tilde substitution.  
+network names into native form.
 .PP
 However, with the advent of the newer \fBTcl_FSGetNormalizedPath\fR and
-\fBTcl_GetNativePath\fR, there is no longer any need to use this
-procedure.  In particular, \fBTcl_GetNativePath\fR performs all the
+\fBTcl_FSGetNativePath\fR, there is no longer any need to use this
+procedure.  In particular, \fBTcl_FSGetNativePath\fR performs all the
 necessary translation and encoding conversion, is virtual-filesystem
 aware, and caches the native result for faster repeated calls.
-Finally \fBTcl_GetNativePath\fR does not require you to free anything
+Finally \fBTcl_FSGetNativePath\fR does not require you to free anything
 afterwards.
 .PP
 If
-\fBTcl_TranslateFileName\fR has to do tilde substitution or translate
+\fBTcl_TranslateFileName\fR has to translate
 the name then it uses
 the dynamic string at \fI*bufferPtr\fR to hold the new string it
 generates.
@@ -66,9 +65,7 @@ frees the dynamic string itself so that the caller need not call
 .PP
 The caller is responsible for making sure that the interpreter's result
 has its default empty value when \fBTcl_TranslateFileName\fR is invoked.
-
 .SH "SEE ALSO"
-filename
-
+filename(n)
 .SH KEYWORDS
-file name, home directory, tilde, translate, user
+file name, home directory, translate, user
diff --git a/doc/UniCharIsAlpha.3 b/doc/UniCharIsAlpha.3
index ea6fc5b..3ce402a 100644
--- a/doc/UniCharIsAlpha.3
+++ b/doc/UniCharIsAlpha.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_UniCharIsAlpha 3 "8.1" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -45,34 +45,35 @@ int
 .sp
 int
 \fBTcl_UniCharIsWordChar\fR(\fIch\fR)
+.fi
 .SH ARGUMENTS
 .AS int ch
 .AP int ch in
-The Tcl_UniChar to be examined.
+The Unicode character to be examined.
 .BE
 
 .SH DESCRIPTION
 .PP
-All of the routines described examine Tcl_UniChars and return a
+All of the routines described examine Unicode characters and return a
 boolean value. A non-zero return value means that the character does
 belong to the character class associated with the called routine. The
 rest of this document just describes the character classes associated
 with the various routines.
-.PP
-Note: A Tcl_UniChar is a Unicode character represented as an unsigned,
-fixed-size quantity.
 
 .SH "CHARACTER CLASSES"
 .PP
-\fBTcl_UniCharIsAlnum\fR tests if the character is an alphanumeric Unicode character.
+\fBTcl_UniCharIsAlnum\fR tests if the character is an alphanumeric Unicode
+character.
 .PP
-\fBTcl_UniCharIsAlpha\fR tests if the character is an alphabetic Unicode character.
+\fBTcl_UniCharIsAlpha\fR tests if the character is an alphabetic Unicode
+character.
 .PP
 \fBTcl_UniCharIsControl\fR tests if the character is a Unicode control character.
 .PP
 \fBTcl_UniCharIsDigit\fR tests if the character is a numeric Unicode character.
 .PP
-\fBTcl_UniCharIsGraph\fR tests if the character is any Unicode print character except space.
+\fBTcl_UniCharIsGraph\fR tests if the character is any Unicode print character
+except space.
 .PP
 \fBTcl_UniCharIsLower\fR tests if the character is a lowercase Unicode character.
 .PP
diff --git a/doc/UpVar.3 b/doc/UpVar.3
index 8e7ba08..d755b34 100644
--- a/doc/UpVar.3
+++ b/doc/UpVar.3
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_UpVar 3 7.4 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -15,10 +15,11 @@ Tcl_UpVar, Tcl_UpVar2 \- link one variable to another
 \fB#include <tcl.h>\fR
 .sp
 int
-\fBTcl_UpVar(\fIinterp, frameName, sourceName, destName, flags\fB)\fR
+\fBTcl_UpVar\fR(\fIinterp, frameName, sourceName, destName, flags\fR)
 .sp
 int
-\fBTcl_UpVar2(\fIinterp, frameName, name1, name2, destName, flags\fB)\fR
+\fBTcl_UpVar2\fR(\fIinterp, frameName, name1, name2, destName, flags\fR)
+.fi
 .SH ARGUMENTS
 .AS "const char" *sourceName
 .AP Tcl_Interp *interp in
@@ -40,7 +41,7 @@ an upvar-ed variable.
 One of \fBTCL_GLOBAL_ONLY\fR, \fBTCL_NAMESPACE_ONLY\fR or 0;  if non-zero,
 then \fIdestName\fR is a global or namespace variable;  otherwise it is
 local to the current procedure (or current namespace if no procedure is
-active). 
+active).
 .AP "const char" *name1 in
 First part of source variable's name (scalar name, or name of array
 without array index).
diff --git a/doc/Utf.3 b/doc/Utf.3
index 9687eb6..14516e9 100644
--- a/doc/Utf.3
+++ b/doc/Utf.3
@@ -8,48 +8,72 @@
 .so man.macros
 .BS
 .SH NAME
-Tcl_UniChar, Tcl_UniCharToUtf, Tcl_UtfToUniChar, Tcl_UniCharToUtfDString, Tcl_UtfToUniCharDString, Tcl_UniCharLen, Tcl_UniCharNcmp, Tcl_UniCharNcasecmp, Tcl_UniCharCaseMatch, Tcl_UtfNcmp, Tcl_UtfNcasecmp, Tcl_UtfCharComplete, Tcl_NumUtfChars, Tcl_UtfFindFirst, Tcl_UtfFindLast, Tcl_UtfNext, Tcl_UtfPrev, Tcl_UniCharAtIndex, Tcl_UtfAtIndex, Tcl_UtfBackslash \- routines for manipulating UTF-8 strings
+Tcl_UniChar, Tcl_UniCharToUtf, Tcl_UtfToUniChar, Tcl_UtfToChar16, Tcl_UtfToWChar, Tcl_UniCharToUtfDString, Tcl_UtfToUniCharDString, Tcl_Char16ToUtfDString, Tcl_UtfToWCharDString, Tcl_UtfToChar16DString, Tcl_WCharToUtfDString, Tcl_WCharLen, Tcl_Char16Len, Tcl_UniCharLen, Tcl_UniCharNcmp, Tcl_UniCharNcasecmp, Tcl_UniCharCaseMatch, Tcl_UtfNcmp, Tcl_UtfNcasecmp, Tcl_UtfCharComplete, Tcl_NumUtfChars, Tcl_UtfFindFirst, Tcl_UtfFindLast, Tcl_UtfNext, Tcl_UtfPrev, Tcl_UniCharAtIndex, Tcl_UtfAtIndex, Tcl_UtfBackslash \- routines for manipulating UTF-8 strings
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
 .sp
 typedef ... \fBTcl_UniChar\fR;
 .sp
-int
+Tcl_Size
 \fBTcl_UniCharToUtf\fR(\fIch, buf\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_UtfToUniChar\fR(\fIsrc, chPtr\fR)
 .sp
+Tcl_Size
+\fBTcl_UtfToChar16\fR(\fIsrc, uPtr\fR)
+.sp
+Tcl_Size
+\fBTcl_UtfToWChar\fR(\fIsrc, wPtr\fR)
+.sp
+char *
+\fBTcl_UniCharToUtfDString\fR(\fIuniStr, numUniChars, dsPtr\fR)
+.sp
+char *
+\fBTcl_Char16ToUtfDString\fR(\fIutf16, numUtf16, dsPtr\fR)
+.sp
 char *
-\fBTcl_UniCharToUtfDString\fR(\fIuniStr, uniLength, dsPtr\fR)
+\fBTcl_WCharToUtfDString\fR(\fIwcharStr, numWChars, dsPtr\fR)
 .sp
 Tcl_UniChar *
-\fBTcl_UtfToUniCharDString\fR(\fIsrc, length, dsPtr\fR)
+\fBTcl_UtfToUniCharDString\fR(\fIsrc, numBytes, dsPtr\fR)
 .sp
-int
+unsigned short *
+\fBTcl_UtfToChar16DString\fR(\fIsrc, numBytes, dsPtr\fR)
+.sp
+wchar_t *
+\fBTcl_UtfToWCharDString\fR(\fIsrc, numBytes, dsPtr\fR)
+.sp
+Tcl_Size
+\fBTcl_Char16Len\fR(\fIutf16\fR)
+.sp
+Tcl_Size
+\fBTcl_WCharLen\fR(\fIwcharStr\fR)
+.sp
+Tcl_Size
 \fBTcl_UniCharLen\fR(\fIuniStr\fR)
 .sp
 int
-\fBTcl_UniCharNcmp\fR(\fIucs, uct, numChars\fR)
+\fBTcl_UniCharNcmp\fR(\fIucs, uct, uniLength\fR)
 .sp
 int
-\fBTcl_UniCharNcasecmp\fR(\fIucs, uct, numChars\fR)
+\fBTcl_UniCharNcasecmp\fR(\fIucs, uct, uniLength\fR)
 .sp
 int
 \fBTcl_UniCharCaseMatch\fR(\fIuniStr, uniPattern, nocase\fR)
 .sp
 int
-\fBTcl_UtfNcmp\fR(\fIcs, ct, numChars\fR)
+\fBTcl_UtfNcmp\fR(\fIcs, ct, length\fR)
 .sp
 int
-\fBTcl_UtfNcasecmp\fR(\fIcs, ct, numChars\fR)
+\fBTcl_UtfNcasecmp\fR(\fIcs, ct, length\fR)
 .sp
 int
-\fBTcl_UtfCharComplete\fR(\fIsrc, length\fR)
+\fBTcl_UtfCharComplete\fR(\fIsrc, numBytes\fR)
 .sp
-int
-\fBTcl_NumUtfChars\fR(\fIsrc, length\fR)
+Tcl_Size
+\fBTcl_NumUtfChars\fR(\fIsrc, numBytes\fR)
 .sp
 const char *
 \fBTcl_UtfFindFirst\fR(\fIsrc, ch\fR)
@@ -63,23 +87,28 @@ const char *
 const char *
 \fBTcl_UtfPrev\fR(\fIsrc, start\fR)
 .sp
-Tcl_UniChar
+int
 \fBTcl_UniCharAtIndex\fR(\fIsrc, index\fR)
 .sp
 const char *
 \fBTcl_UtfAtIndex\fR(\fIsrc, index\fR)
 .sp
-int
+Tcl_Size
 \fBTcl_UtfBackslash\fR(\fIsrc, readPtr, dst\fR)
+.fi
 .SH ARGUMENTS
 .AS "const Tcl_UniChar" *uniPattern in/out
 .AP char *buf out
 Buffer in which the UTF-8 representation of the Tcl_UniChar is stored.  At most
-\fBTCL_UTF_MAX\fR bytes are stored in the buffer.
+4 bytes are stored in the buffer.
 .AP int ch in
-The Tcl_UniChar to be converted or examined.
+The Unicode character to be converted or examined.
 .AP Tcl_UniChar *chPtr out
 Filled with the Tcl_UniChar represented by the head of the UTF-8 string.
+.AP unsigned short *uPtr out
+Filled with the utf-16 represented by the head of the UTF-8 string.
+.AP wchar_t *wPtr out
+Filled with the wchar_t represented by the head of the UTF-8 string.
 .AP "const char" *src in
 Pointer to a UTF-8 string.
 .AP "const char" *cs in
@@ -87,33 +116,44 @@ Pointer to a UTF-8 string.
 .AP "const char" *ct in
 Pointer to a UTF-8 string.
 .AP "const Tcl_UniChar" *uniStr in
-A null-terminated Unicode string.
+A sequence of \fBTcl_UniChar\fR units with null-termination optional
+depending on function.
 .AP "const Tcl_UniChar" *ucs in
-A null-terminated Unicode string.
+A null-terminated sequence of \fBTcl_UniChar\fR.
 .AP "const Tcl_UniChar" *uct in
-A null-terminated Unicode string.
+A null-terminated sequence of \fBTcl_UniChar\fR.
 .AP "const Tcl_UniChar" *uniPattern in
-A null-terminated Unicode string.
-.AP int length in
-The length of the UTF-8 string in bytes (not UTF-8 characters).  If
-negative, all bytes up to the first null byte are used.
-.AP int uniLength in
-The length of the Unicode string in characters.  Must be greater than or
-equal to 0.
+A null-terminated sequence of \fBTcl_UniChar\fR.
+.AP "const unsigned short" *utf16 in
+A sequence of UTF-16 units with null-termination optional
+depending on function.
+.AP "const wchar_t" *wcharStr in
+A sequence of \fBwchar_t\fR units with null-termination optional
+depending on function.
+.AP int numBytes in
+The length of the UTF-8 input in bytes.  If
+negative, the length includes all bytes until the first null byte.
+.AP int numUtf16 in
+The length of the input in UTF-16 units.
+If negative, the length includes all bytes until the first null.
+.AP int numUniChars in
+The length of the input in Tcl_UniChar units.
+If negative, the length includes all bytes until the first null.
+.AP int numWChars in
+The length of the input in wchar_t units.
+If negative, the length includes all bytes until the first null.
 .AP "Tcl_DString" *dsPtr in/out
 A pointer to a previously initialized \fBTcl_DString\fR.
-.AP "unsigned long" numChars in
-The number of characters to compare.
 .AP "const char" *start in
 Pointer to the beginning of a UTF-8 string.
-.AP int index in
+.AP Tcl_Size index in
 The index of a character (not byte) in the UTF-8 string.
 .AP int *readPtr out
 If non-NULL, filled with the number of bytes in the backslash sequence,
 including the backslash character.
 .AP char *dst out
 Buffer in which the bytes represented by the backslash sequence are stored.
-At most \fBTCL_UTF_MAX\fR bytes are stored in the buffer.
+At most 4 bytes are stored in the buffer.
 .AP int nocase in
 Specifies whether the match should be done case-sensitive (0) or
 case-insensitive (1).
@@ -121,18 +161,22 @@ case-insensitive (1).
 
 .SH DESCRIPTION
 .PP
-These routines convert between UTF-8 strings and Tcl_UniChars.  A
-Tcl_UniChar is a Unicode character represented as an unsigned, fixed-size
-quantity.  A UTF-8 character is a Unicode character represented as
-a varying-length sequence of up to \fBTCL_UTF_MAX\fR bytes.  A multibyte UTF-8
-sequence consists of a lead byte followed by some number of trail bytes.
+These routines convert between UTF-8 strings and Unicode/Utf-16 characters.
+A UTF-8 character is a Unicode character represented as a varying-length
+sequence of up to \fB4\fR bytes.  A multibyte UTF-8 sequence
+consists of a lead byte followed by some number of trail bytes.
 .PP
-\fBTCL_UTF_MAX\fR is the maximum number of bytes that it takes to
-represent one Unicode character in the UTF-8 representation.
+\fBTCL_UTF_MAX\fR is the maximum number of bytes that \fBTcl_UtfToUniChar\fR
+can consume in a single call.
 .PP
-\fBTcl_UniCharToUtf\fR stores the Tcl_UniChar \fIch\fR as a UTF-8 string
+\fBTcl_UniCharToUtf\fR stores the character \fIch\fR as a UTF-8 string
 in starting at \fIbuf\fR.  The return value is the number of bytes stored
-in \fIbuf\fR.
+in \fIbuf\fR. The character \fIch\fR can be or'ed with the value TCL_COMBINE
+to enable special behavior, compatible with Tcl 8.x. Then, if ch is a high
+surrogate (range U+D800 - U+DBFF), the return value will be 1 and a single
+byte in the range 0xF0 - 0xF4 will be stored. If \fIch\fR is a low surrogate
+(range U+DC00 - U+DFFF), an attempt is made to combine the result with
+the earlier produced bytes, resulting in a 4-byte UTF-8 byte sequence.
 .PP
 \fBTcl_UtfToUniChar\fR reads one UTF-8 character starting at \fIsrc\fR
 and stores it as a Tcl_UniChar in \fI*chPtr\fR.  The return value is the
@@ -140,27 +184,39 @@ number of bytes read from \fIsrc\fR.  The caller must ensure that the
 source buffer is long enough such that this routine does not run off the
 end and dereference non-existent or random memory; if the source buffer
 is known to be null-terminated, this will not happen.  If the input is
+a byte in the range 0x80 - 0x9F, \fBTcl_UtfToUniChar\fR assumes the
+cp1252 encoding, stores the corresponding Tcl_UniChar in \fI*chPtr\fR
+and returns 1. If the input is otherwise
 not in proper UTF-8 format, \fBTcl_UtfToUniChar\fR will store the first
-byte of \fIsrc\fR in \fI*chPtr\fR as a Tcl_UniChar between 0x80 and
-0xFF and return 1.
+byte of \fIsrc\fR in \fI*chPtr\fR as a Tcl_UniChar between 0x00A0 and
+0x00FF and return 1.
+.PP
+\fBTcl_UniCharToUtfDString\fR converts the input in the form of a
+sequence of \fBTcl_UniChar\fR code points to UTF-8, appending the result to the
+previously initialized output \fBTcl_DString\fR. The return value is a pointer
+to the UTF-8 representation of the \fBappended\fR string.
+.PP
+\fBTcl_UtfToUniCharDString\fR converts the input in the form of
+a UTF-8 encoded string to a \fBTcl_UniChar\fR sequence
+appending the result in the previously initialized \fBTcl_DString\fR.
+The return value is a pointer to the appended result which is also
+terminated with a \fBTcl_UniChar\fR null character.
+.PP
+\fBTcl_WCharToUtfDString\fR and \fBTcl_UtfToWCharDString\fR are similar to
+\fBTcl_UniCharToUtfDString\fR and \fBTcl_UtfToUniCharDString\fR except they
+operate on sequences of \fBwchar_t\fR instead of \fBTcl_UniChar\fR.
+.PP
+\fBTcl_Char16ToUtfDString\fR and \fBTcl_UtfToChar16DString\fR are similar to
+\fBTcl_UniCharToUtfDString\fR and \fBTcl_UtfToUniCharDString\fR except they
+operate on sequences of \fBUTF-16\fR units instead of \fBTcl_UniChar\fR.
 .PP
-\fBTcl_UniCharToUtfDString\fR converts the given Unicode string
-to UTF-8, storing the result in a previously initialized \fBTcl_DString\fR.
-You must specify \fIuniLength\fR, the length of the given Unicode string.
-The return value is a pointer to the UTF-8 representation of the
-Unicode string.  Storage for the return value is appended to the
-end of the \fBTcl_DString\fR.
+\fBTcl_Char16Len\fR corresponds to \fBstrlen\fR for UTF-16
+characters.  It accepts a null-terminated UTF-16 sequence and returns
+the number of UTF-16 units until the null.
 .PP
-\fBTcl_UtfToUniCharDString\fR converts the given UTF-8 string to Unicode,
-storing the result in the previously initialized \fBTcl_DString\fR.
-In the argument \fIlength\fR, you may either specify the length of
-the given UTF-8 string in bytes or
-.QW \-1 ,
-in which case \fBTcl_UtfToUniCharDString\fR uses \fBstrlen\fR to
-calculate the length.  The return value is a pointer to the Unicode
-representation of the UTF-8 string.  Storage for the return value
-is appended to the end of the \fBTcl_DString\fR.  The Unicode string
-is terminated with a Unicode null character.
+\fBTcl_WCharLen\fR corresponds to \fBstrlen\fR for \fBwchar_t\fR
+characters.  It accepts a null-terminated \fBwchar_t\fR sequence and returns
+the number of \fBwchar_t\fR units until the null.
 .PP
 \fBTcl_UniCharLen\fR corresponds to \fBstrlen\fR for Unicode
 characters.  It accepts a null-terminated Unicode string and returns
@@ -169,7 +225,7 @@ the number of Unicode characters (not bytes) in that string.
 \fBTcl_UniCharNcmp\fR and \fBTcl_UniCharNcasecmp\fR correspond to
 \fBstrncmp\fR and \fBstrncasecmp\fR, respectively, for Unicode characters.
 They accept two null-terminated Unicode strings and the number of characters
-to compare.  Both strings are assumed to be at least \fInumChars\fR characters
+to compare.  Both strings are assumed to be at least \fIuniLength\fR characters
 long. \fBTcl_UniCharNcmp\fR  compares the two strings character-by-character
 according to the Unicode character ordering.  It returns an integer greater
 than, equal to, or less than 0 if the first string is greater than, equal
@@ -183,7 +239,7 @@ be case sensitive and returns whether the string matches the pattern.
 .PP
 \fBTcl_UtfNcmp\fR corresponds to \fBstrncmp\fR for UTF-8 strings. It
 accepts two null-terminated UTF-8 strings and the number of characters
-to compare.  (Both strings are assumed to be at least \fInumChars\fR
+to compare.  (Both strings are assumed to be at least \fIlength\fR
 characters long.)  \fBTcl_UtfNcmp\fR compares the two strings
 character-by-character according to the Unicode character ordering.
 It returns an integer greater than, equal to, or less than 0 if the
@@ -196,11 +252,11 @@ differences in case when comparing upper, lower or title case
 characters.
 .PP
 \fBTcl_UtfCharComplete\fR returns 1 if the source UTF-8 string \fIsrc\fR
-of \fIlength\fR bytes is long enough to be decoded by
+of \fInumBytes\fR bytes is long enough to be decoded by
 \fBTcl_UtfToUniChar\fR/\fBTcl_UtfNext\fR, or 0 otherwise.  This function
 does not guarantee that the UTF-8 string is properly formed.  This routine
 is used by procedures that are operating on a byte at a time and need to
-know if a full Tcl_UniChar has been seen.
+know if a full Unicode character has been seen.
 .PP
 \fBTcl_NumUtfChars\fR corresponds to \fBstrlen\fR for UTF-8 strings.  It
 returns the number of Tcl_UniChars that are represented by the UTF-8 string
@@ -208,12 +264,12 @@ returns the number of Tcl_UniChars that are represented by the UTF-8 string
 length is negative, all bytes up to the first null byte are used.
 .PP
 \fBTcl_UtfFindFirst\fR corresponds to \fBstrchr\fR for UTF-8 strings.  It
-returns a pointer to the first occurrence of the Tcl_UniChar \fIch\fR
+returns a pointer to the first occurrence of the Unicode character \fIch\fR
 in the null-terminated UTF-8 string \fIsrc\fR.  The null terminator is
 considered part of the UTF-8 string.
 .PP
 \fBTcl_UtfFindLast\fR corresponds to \fBstrrchr\fR for UTF-8 strings.  It
-returns a pointer to the last occurrence of the Tcl_UniChar \fIch\fR
+returns a pointer to the last occurrence of the Unicode character \fIch\fR
 in the null-terminated UTF-8 string \fIsrc\fR.  The null terminator is
 considered part of the UTF-8 string.
 .PP
@@ -239,29 +295,29 @@ always a pointer to a location in the string. It always returns a pointer to
 a byte that begins a character when scanning for characters beginning
 from \fIstart\fR. When \fIsrc\fR is greater than \fIstart\fR, it
 always returns a pointer less than \fIsrc\fR and greater than or
-equal to (\fIsrc\fR - \fBTCL_UTF_MAX\fR).  The character that begins
+equal to (\fIsrc\fR - 4).  The character that begins
 at the returned pointer is the first one that either includes the
 byte \fIsrc[-1]\fR, or might include it if the right trail bytes are
 present at \fIsrc\fR and greater. \fBTcl_UtfPrev\fR never reads the
 byte \fIsrc[0]\fR nor the byte \fIstart[-1]\fR nor the byte
-\fIsrc[-\fBTCL_UTF_MAX\fI-1]\fR.
+\fIsrc[-5]\fR.
 .PP
 \fBTcl_UniCharAtIndex\fR corresponds to a C string array dereference or the
-Pascal Ord() function.  It returns the Tcl_UniChar represented at the
+Pascal Ord() function.  It returns the Unicode character represented at the
 specified character (not byte) \fIindex\fR in the UTF-8 string
 \fIsrc\fR.  The source string must contain at least \fIindex\fR
-characters.  Behavior is undefined if a negative \fIindex\fR is given.
+characters.  If \fIindex\fR is negative it returns -1.
 .PP
 \fBTcl_UtfAtIndex\fR returns a pointer to the specified character (not
 byte) \fIindex\fR in the UTF-8 string \fIsrc\fR.  The source string must
 contain at least \fIindex\fR characters.  This is equivalent to calling
-\fBTcl_UtfToUniChar\fR \fIindex\fR times.  If a negative \fIindex\fR is given,
+\fBTcl_UtfToUniChar\fR \fIindex\fR times.  If \fIindex\fR is negative,
 the return pointer points to the first character in the source string.
 .PP
 \fBTcl_UtfBackslash\fR is a utility procedure used by several of the Tcl
 commands.  It parses a backslash sequence and stores the properly formed
 UTF-8 character represented by the backslash sequence in the output
-buffer \fIdst\fR.  At most \fBTCL_UTF_MAX\fR bytes are stored in the buffer.
+buffer \fIdst\fR.  At most 4 bytes are stored in the buffer.
 \fBTcl_UtfBackslash\fR modifies \fI*readPtr\fR to contain the number
 of bytes in the backslash sequence, including the backslash character.
 The return value is the number of bytes stored in the output buffer.
diff --git a/doc/WrongNumArgs.3 b/doc/WrongNumArgs.3
index f24cba5..864d315 100644
--- a/doc/WrongNumArgs.3
+++ b/doc/WrongNumArgs.3
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_WrongNumArgs 3 8.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -14,12 +14,13 @@ Tcl_WrongNumArgs \- generate standard error message for wrong number of argument
 \fB#include <tcl.h>\fR
 .sp
 \fBTcl_WrongNumArgs\fR(\fIinterp, objc, objv, message\fR)
+.fi
 .SH ARGUMENTS
 .AS "Tcl_Obj *const" *message
 .AP Tcl_Interp interp in
 Interpreter in which error will be reported: error message gets stored
-in its result object.
-.AP int objc in
+in its result value.
+.AP Tcl_Size objc in
 Number of leading arguments from \fIobjv\fR to include in error
 message.
 .AP "Tcl_Obj *const" objv[] in
@@ -29,49 +30,57 @@ Additional error information to print after leading arguments
 from \fIobjv\fR.  This typically gives the acceptable syntax
 of the command.  This argument may be NULL.
 .BE
-
 .SH DESCRIPTION
 .PP
 \fBTcl_WrongNumArgs\fR is a utility procedure that is invoked by
 command procedures when they discover that they have received the
 wrong number of arguments.  \fBTcl_WrongNumArgs\fR generates a
-standard error message and stores it in the result object of
+standard error message and stores it in the result value of
 \fIinterp\fR.  The message includes the \fIobjc\fR initial
 elements of \fIobjv\fR plus \fImessage\fR.  For example, if
 \fIobjv\fR consists of the values \fBfoo\fR and \fBbar\fR,
 \fIobjc\fR is 1, and \fImessage\fR is
 .QW "\fBfileName count\fR"
-then \fIinterp\fR's result object will be set to the following
+then \fIinterp\fR's result value will be set to the following
 string:
+.PP
 .CS
 wrong # args: should be "foo fileName count"
 .CE
+.PP
 If \fIobjc\fR is 2, the result will be set to the following string:
+.PP
 .CS
 wrong # args: should be "foo bar fileName count"
 .CE
+.PP
 \fIObjc\fR is usually 1, but may be 2 or more for commands like
 \fBstring\fR and the Tk widget commands, which use the first argument
-as a subcommand.  
+as a subcommand.
 .PP
-Some of the objects in the \fIobjv\fR array may be abbreviations for
+Some of the values in the \fIobjv\fR array may be abbreviations for
 a subcommand.  The command
-\fBTcl_GetIndexFromObj\fR will convert the abbreviated string object
+\fBTcl_GetIndexFromObj\fR will convert the abbreviated string value
 into an \fIindexObject\fR.  If an error occurs in the parsing of the
 subcommand we would like to use the full subcommand name rather than
 the abbreviation.  If the \fBTcl_WrongNumArgs\fR command finds any
-\fIindexObjects\fR in the \fIobjv\fR array it will use the full subcommand
+\fIindexObject\fRs in the \fIobjv\fR array, it will use the full subcommand
 name in the error message instead of the abbreviated name that was
 originally passed in.  Using the above example, let us assume that
-\fIbar\fR is actually an abbreviation for \fIbarfly\fR and the object
-is now an indexObject because it was passed to
+\fIbar\fR is actually an abbreviation for \fIbarfly\fR and the value
+is now an \fIindexObject\fR because it was passed to
 \fBTcl_GetIndexFromObj\fR.  In this case the error message would be:
+.PP
 .CS
 wrong # args: should be "foo barfly fileName count"
 .CE
-
+.SH "REFERENCE COUNT MANAGEMENT"
+.PP
+The \fIobjv\fR argument to \fBTcl_WrongNumArgs\fR should be the exact
+arguments passed to the command or method implementation function that is
+calling \fBTcl_WrongNumArgs\fR. As such, all values referenced in it should
+have reference counts greater than zero; this is usually a non-issue.
 .SH "SEE ALSO"
-Tcl_GetIndexFromObj
-
+Tcl_GetIndexFromObj(3)
 .SH KEYWORDS
 command, error message, wrong number of arguments
diff --git a/doc/abstract.n b/doc/abstract.n
new file mode 100644
index 0000000..c58abd8
--- /dev/null
+++ b/doc/abstract.n
@@ -0,0 +1,77 @@
+'\"
+'\" Copyright (c) 2018 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH abstract n 0.3 TclOO "TclOO Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+oo::abstract \- a class that does not allow direct instances of itself
+.SH SYNOPSIS
+.nf
+package require tcl::oo
+
+\fBoo::abstract\fI method \fR?\fIarg ...\fR?
+.fi
+.SH "CLASS HIERARCHY"
+.nf
+\fBoo::object\fR
+   \(-> \fBoo::class\fR
+       \(-> \fBoo::abstract\fR
+.fi
+.BE
+.SH DESCRIPTION
+Abstract classes are classes that can contain definitions, but which cannot be
+directly manufactured; they are intended to only ever be inherited from and
+instantiated indirectly. The characteristic methods of \fBoo::class\fR
+(\fBcreate\fR and \fBnew\fR) are not exported by an instance of
+\fBoo::abstract\fR.
+.PP
+Note that \fBoo::abstract\fR is not itself an instance of \fBoo::abstract\fR.
+.SS CONSTRUCTOR
+The \fBoo::abstract\fR class does not define an explicit constructor; this
+means that it is effectively the same as the constructor of the
+\fBoo::class\fR class.
+.SS DESTRUCTOR
+The \fBoo::abstract\fR class does not define an explicit destructor;
+destroying an instance of it is just like destroying an ordinary class (and
+will destroy all its subclasses).
+.SS "EXPORTED METHODS"
+The \fBoo::abstract\fR class defines no new exported methods.
+.SS "NON-EXPORTED METHODS"
+The \fBoo::abstract\fR class explicitly states that \fBcreate\fR,
+\fBcreateWithNamespace\fR, and \fBnew\fR are unexported.
+.SH EXAMPLES
+.PP
+This example defines a simple class hierarchy and creates a new instance of
+it. It then invokes a method of the object before destroying the hierarchy and
+showing that the destruction is transitive.
+.PP
+.CS
+\fBoo::abstract\fR create fruit {
+    method eat {} {
+        puts "yummy!"
+    }
+}
+oo::class create banana {
+    superclass fruit
+    method peel {} {
+        puts "skin now off"
+    }
+}
+set b [banana \fBnew\fR]
+$b peel              \fI\(-> prints 'skin now off'\fR
+$b eat               \fI\(-> prints 'yummy!'\fR
+set f [fruit new]    \fI\(-> error 'unknown method "new"...'\fR
+.CE
+.SH "SEE ALSO"
+oo::define(n), oo::object(n)
+.SH KEYWORDS
+abstract class, class, metaclass, object
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/after.n b/doc/after.n
index 2a5d005..a619935 100644
--- a/doc/after.n
+++ b/doc/after.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH after n 7.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,32 +12,33 @@
 .SH NAME
 after \- Execute a command after a time delay
 .SH SYNOPSIS
+.nf
 \fBafter \fIms\fR
-.sp
 \fBafter \fIms \fR?\fIscript script script ...\fR?
-.sp
 \fBafter cancel \fIid\fR
-.sp
 \fBafter cancel \fIscript script script ...\fR
-.sp
 \fBafter idle \fR?\fIscript script script ...\fR?
-.sp
 \fBafter info \fR?\fIid\fR?
+.fi
 .BE
-
 .SH DESCRIPTION
 .PP
 This command is used to delay execution of the program or to execute
 a command in background sometime in the future.  It has several forms,
 depending on the first argument to the command:
+.\" METHOD: <none>
 .TP
 \fBafter \fIms\fR
+.
 \fIMs\fR must be an integer giving a time in milliseconds.
+A negative number is treated as 0.
 The command sleeps for \fIms\fR milliseconds and then returns.
 While the command is sleeping the application does not respond to
 events.
+.\" METHOD: <timedelay>
 .TP
 \fBafter \fIms \fR?\fIscript script script ...\fR?
+.
 In this form the command returns immediately, but it arranges
 for a Tcl command to be executed \fIms\fR milliseconds later as an
 event handler.
@@ -46,13 +47,18 @@ The delayed command is formed by concatenating all the \fIscript\fR
 arguments in the same fashion as the \fBconcat\fR command.
 The command will be executed at global level (outside the context
 of any Tcl procedure).
-If an error occurs while executing the delayed command then 
+If an error occurs while executing the delayed command then
 the background error will be reported by the command
-registered with \fB interp bgerror\fR.
+registered with \fBinterp bgerror\fR.
 The \fBafter\fR command returns an identifier that can be used
 to cancel the delayed command using \fBafter cancel\fR.
+A \fIms\fR value of 0 (or negative) queues the event immediately with
+priority over other event types (if not installed with an event proc,
+which will wait for next round of events).
+.\" METHOD: cancel
 .TP
 \fBafter cancel \fIid\fR
+.
 Cancels the execution of a delayed command that
 was previously scheduled.
 \fIId\fR indicates which command should be canceled;  it must have
@@ -61,14 +67,17 @@ If the command given by \fIid\fR has already been executed then
 the \fBafter cancel\fR command has no effect.
 .TP
 \fBafter cancel \fIscript script ...\fR
+.
 This command also cancels the execution of a delayed command.
 The \fIscript\fR arguments are concatenated together with space
 separators (just as in the \fBconcat\fR command).
 If there is a pending command that matches the string, it is
-cancelled and will never be executed;  if no such command is
+canceled and will never be executed;  if no such command is
 currently pending then the \fBafter cancel\fR command has no effect.
+.\" METHOD: idle
 .TP
 \fBafter idle \fIscript \fR?\fIscript script ...\fR?
+.
 Concatenates the \fIscript\fR arguments together with space
 separators (just as in the \fBconcat\fR command), and arranges
 for the resulting script to be evaluated later as an idle callback.
@@ -78,9 +87,11 @@ The command returns an identifier that can be used
 to cancel the delayed command using \fBafter cancel\fR.
 If an error occurs while executing the script then the
 background error will be reported by the command
-registered with \fB interp bgerror\fR.
+registered with \fBinterp bgerror\fR.
+.\" METHOD: info
 .TP
 \fBafter info \fR?\fIid\fR?
+.
 This command returns information about existing event handlers.
 If no \fIid\fR argument is supplied, the command returns
 a list of the identifiers for all existing
@@ -88,7 +99,7 @@ event handlers created by the \fBafter\fR command for this
 interpreter.
 If \fIid\fR is supplied, it specifies an existing handler;
 \fIid\fR must have been the return value from some previous call
-to \fBafter\fR and it must not have triggered yet or been cancelled.
+to \fBafter\fR and it must not have triggered yet or been canceled.
 In this case the command returns a list with two elements.
 The first element of the list is the script associated
 with \fIid\fR, and the second element is either
@@ -104,14 +115,16 @@ and \fBupdate\fR commands.
 .SH "EXAMPLES"
 This defines a command to make Tcl do nothing at all for \fIN\fR
 seconds:
+.PP
 .CS
 proc sleep {N} {
-   \fBafter\fR [expr {int($N * 1000)}]
+    \fBafter\fR [expr {int($N * 1000)}]
 }
 .CE
 .PP
 This arranges for the command \fIwake_up\fR to be run in eight hours
 (providing the event loop is active at that time):
+.PP
 .CS
 \fBafter\fR [expr {1000 * 60 * 60 * 8}] wake_up
 .CE
@@ -126,17 +139,19 @@ processing steps (arranging for the next step to be done using an
 already-triggered timer event only when the event queue has been
 drained) and is useful when you want to ensure that a Tk GUI remains
 responsive during a slow task.
+.PP
 .CS
 proc doOneStep {} {
-   if {[::my_calc::one_step]} {
-      \fBafter idle\fR [list \fBafter\fR 0 doOneStep]
-   }
+    if {[::my_calc::one_step]} {
+        \fBafter idle\fR [list \fBafter\fR 0 doOneStep]
+    }
 }
 doOneStep
 .CE
-
 .SH "SEE ALSO"
 concat(n), interp(n), update(n), vwait(n)
-
 .SH KEYWORDS
 cancel, delay, idle callback, sleep, time
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/append.n b/doc/append.n
index b0b8216..99b4ece 100644
--- a/doc/append.n
+++ b/doc/append.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH append n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,13 +14,17 @@ append \- Append to variable
 .SH SYNOPSIS
 \fBappend \fIvarName \fR?\fIvalue value value ...\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 Append all of the \fIvalue\fR arguments to the current value
 of variable \fIvarName\fR.  If \fIvarName\fR does not exist,
 it is given a value equal to the concatenation of all the
 \fIvalue\fR arguments.
+.VS TIP508
+If \fIvarName\fR indicate an element that does not exist of an array that has
+a default value set, the concatenation of the default value and all the
+\fIvalue\fR arguments will be stored in the array element.
+.VE TIP508
 The result of this command is the new value stored in variable
 \fIvarName\fR.
 This command provides an efficient way to build up long
@@ -32,17 +36,20 @@ is much more efficient than
 if \fB$a\fR is long.
 .SH EXAMPLE
 Building a string of comma-separated numbers piecemeal using a loop.
+.PP
 .CS
 set var 0
 for {set i 1} {$i<=10} {incr i} {
-   \fBappend\fR var "," $i
+    \fBappend\fR var "," $i
 }
 puts $var
 # Prints 0,1,2,3,4,5,6,7,8,9,10
 .CE
-
 .SH "SEE ALSO"
 concat(n), lappend(n)
-
 .SH KEYWORDS
 append, variable
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/apply.n b/doc/apply.n
index 003621e..be22361 100644
--- a/doc/apply.n
+++ b/doc/apply.n
@@ -14,11 +14,11 @@ apply \- Apply an anonymous function
 .SH DESCRIPTION
 .PP
 The command \fBapply\fR applies the function \fIfunc\fR to the arguments
-\fIarg1 arg2 ...\fR and returns the result. 
+\fIarg1 arg2 ...\fR and returns the result.
 .PP
 The function \fIfunc\fR is a two element list \fI{args body}\fR or a three
 element list \fI{args body namespace}\fR (as if the
-\fBlist\fR command had been used). 
+\fBlist\fR command had been used).
 The first element \fIargs\fR specifies the formal arguments to
 \fIfunc\fR. The specification of the formal arguments \fIargs\fR
 is shared with the \fBproc\fR command, and is described in detail in the
@@ -44,34 +44,36 @@ interpreted relative to the global namespace even if its name does not start
 with
 .QW :: .
 .PP
-The semantics of \fBapply\fR can also be described by:
+The semantics of \fBapply\fR can also be described by approximately this:
 .PP
 .CS
 proc apply {fun args} {
-   set len [llength $fun]
-   if {($len < 2) || ($len > 3)} {
-      error "can't interpret \e"$fun\e" as anonymous function"
-   }
-   lassign $fun argList body ns
-   set name ::$ns::[getGloballyUniqueName]
-   set body0 {
-      rename [lindex [info level 0] 0] {}
-   }
-   proc $name $argList ${body0}$body
-   set code [catch {uplevel 1 $name $args} res opt]
-   return -options $opt $res
+    set len [llength $fun]
+    if {($len < 2) || ($len > 3)} {
+        error "can't interpret \e"$fun\e" as anonymous function"
+    }
+    lassign $fun argList body ns
+    set name ::$ns::[getGloballyUniqueName]
+    set body0 {
+        rename [lindex [info level 0] 0] {}
+    }
+    proc $name $argList ${body0}$body
+    set code [catch {uplevel 1 $name $args} res opt]
+    return -options $opt $res
 }
 .CE
 .SH EXAMPLES
+.PP
 This shows how to make a simple general command that applies a transformation
 to each element of a list.
+.PP
 .CS
 proc map {lambda list} {
-   set result {}
-   foreach item $list {
-      lappend result [\fBapply\fR $lambda $item]
-   }
-   return $result
+    set result {}
+    foreach item $list {
+        lappend result [\fBapply\fR $lambda $item]
+    }
+    return $result
 }
 map {x {return [string length $x]:$x}} {a bb ccc dddd}
       \fI\(-> 1:a 2:bb 3:ccc 4:dddd\fR
@@ -81,11 +83,12 @@ map {x {expr {$x**2 + 3*$x - 2}}} {-4 -3 -2 -1 0 1 2 3 4}
 .PP
 The \fBapply\fR command is also useful for defining callbacks for use in the
 \fBtrace\fR command:
+.PP
 .CS
 set vbl "123abc"
 trace add variable vbl write {\fBapply\fR {{v1 v2 op} {
-   upvar 1 $v1 v
-   puts "updated variable to \e"$v\e""
+    upvar 1 $v1 v
+    puts "updated variable to \e"$v\e""
 }}}
 set vbl 123
 set vbl abc
@@ -93,4 +96,7 @@ set vbl abc
 .SH "SEE ALSO"
 proc(n), uplevel(n)
 .SH KEYWORDS
-argument, procedure, anonymous function
+anonymous function, argument, lambda, procedure
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/array.n b/doc/array.n
index 056992c..ae470d5 100644
--- a/doc/array.n
+++ b/doc/array.n
@@ -4,8 +4,8 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-.TH array n 8.3 Tcl "Tcl Built-In Commands"
+'\"
+.TH array n 9.0 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
@@ -23,8 +23,10 @@ Unless otherwise specified for individual commands below,
 The \fIoption\fR argument determines what action is carried
 out by the command.
 The legal \fIoptions\fR (which may be abbreviated) are:
+.\" METHOD: anymore
 .TP
 \fBarray anymore \fIarrayName searchId\fR
+.
 Returns 1 if there are any more elements left to be processed
 in an array search, 0 if all elements have already been
 returned.
@@ -35,19 +37,84 @@ This option is particularly useful if an array has an element
 with an empty name, since the return value from
 \fBarray nextelement\fR will not indicate whether the search
 has been completed.
+.\" METHOD: default
+.TP
+\fBarray default \fIsubcommand arrayName args...\fR
+.VS TIP508
+Manages the default value of the array. Arrays initially have no default
+value, but this command allows you to set one; the default value will be
+returned when reading from an element of the array \fIarrayName\fR if the read
+would otherwise result in an error. Note that this may cause the \fBappend\fR,
+\fBdict\fR, \fBincr\fR and \fBlappend\fR commands to change their behavior in
+relation to non-existing array elements.
+.RS
+.PP
+The \fIsubcommand\fR argument controls what exact operation will be performed
+on the default value of \fIarrayName\fR. Supported \fIsubcommand\fRs are:
+.VE TIP508
+.TP
+\fBarray default exists \fIarrayName\fR
+.VS TIP508
+This returns a boolean value indicating whether a default value has been set
+for the array \fIarrayName\fR. Returns a false value if \fIarrayName\fR does
+not exist. Raises an error if \fIarrayName\fR is an existing variable that is
+not an array.
+.VE TIP508
+.TP
+\fBarray default get \fIarrayName\fR
+.VS TIP508
+This returns the current default value for the array \fIarrayName\fR.  Raises
+an error if \fIarrayName\fR is an existing variable that is not an array, or
+if \fIarrayName\fR is an array without a default value.
+.VE TIP508
+.TP
+\fBarray default set \fIarrayName value\fR
+.VS TIP508
+This sets the default value for the array \fIarrayName\fR to \fIvalue\fR.
+Returns the empty string. Raises an error if \fIarrayName\fR is an existing
+variable that is not an array, or if \fIarrayName\fR is an illegal name for an
+array. If \fIarrayName\fR does not currently exist, it is created as an empty
+array as well as having its default value set.
+.VE TIP508
+.TP
+\fBarray default unset \fIarrayName\fR
+.VS TIP508
+This removes the default value for the array \fIarrayName\fR and returns the
+empty string. Does nothing if \fIarrayName\fR does not have a default
+value. Raises an error if \fIarrayName\fR is an existing variable that is not
+an array.
+.VE TIP508
+.RE
+.\" METHOD: donesearch
 .TP
 \fBarray donesearch \fIarrayName searchId\fR
+.
 This command terminates an array search and destroys all the
 state associated with that search.  \fISearchId\fR indicates
 which search on \fIarrayName\fR to destroy, and must have
 been the return value from a previous invocation of
 \fBarray startsearch\fR.  Returns an empty string.
+.\" METHOD: exists
 .TP
 \fBarray exists \fIarrayName\fR
+.
 Returns 1 if \fIarrayName\fR is an array variable, 0 if there
 is no variable by that name or if it is a scalar variable.
+.\" METHOD: for
+.TP
+\fBarray for {\fIkeyVariable valueVariable\fB} \fIarrayName body\fR
+.
+The first argument is a two element list of variable names for the
+key and value of each entry in the array.  The second argument is the
+array name to iterate over.  The third argument is the body to execute
+for each key and value returned.
+The ordering of the returned keys is undefined.
+If an array element is deleted or a new array element is inserted during
+the \fIarray for\fR process, the command will terminate with an error.
+.\" METHOD: get
 .TP
 \fBarray get \fIarrayName\fR ?\fIpattern\fR?
+.
 Returns a list containing pairs of elements.  The first
 element in each pair is the name of an element in \fIarrayName\fR
 and the second element of each pair is the value of the
@@ -62,8 +129,10 @@ the array contains no elements, then an empty list is returned.
 If traces on the array modify the list of elements, the elements
 returned are those that exist both before and after the call to
 \fBarray get\fR.
+.\" METHOD: names
 .TP
 \fBarray names \fIarrayName\fR ?\fImode\fR? ?\fIpattern\fR?
+.
 Returns a list containing the names of all of the elements in
 the array that match \fIpattern\fR.  \fIMode\fR may be one of
 \fB\-exact\fR, \fB\-glob\fR, or \fB\-regexp\fR.  If specified, \fImode\fR
@@ -76,8 +145,10 @@ If \fIpattern\fR is omitted then the command returns all of
 the element names in the array.  If there are no (matching) elements
 in the array, or if \fIarrayName\fR is not the name of an array
 variable, then an empty string is returned.
+.\" METHOD: nextelement
 .TP
 \fBarray nextelement \fIarrayName searchId\fR
+.
 Returns the name of the next element in \fIarrayName\fR, or
 an empty string if all elements of \fIarrayName\fR have
 already been returned in this search.  The \fIsearchId\fR
@@ -87,8 +158,10 @@ Warning:  if elements are added to or deleted from the array,
 then all searches are automatically terminated just as if
 \fBarray donesearch\fR had been invoked; this will cause
 \fBarray nextelement\fR operations to fail for those searches.
+.\" METHOD: set
 .TP
 \fBarray set \fIarrayName list\fR
+.
 Sets the values of one or more elements in \fIarrayName\fR.
 \fIlist\fR must have a form like that returned by \fBarray get\fR,
 consisting of an even number of elements.
@@ -98,13 +171,17 @@ is used as a new value for that array element.
 If the variable \fIarrayName\fR does not already exist
 and \fIlist\fR is empty,
 \fIarrayName\fR is created with an empty array value.
+.\" METHOD: size
 .TP
 \fBarray size \fIarrayName\fR
+.
 Returns a decimal string giving the number of elements in the
 array.
 If \fIarrayName\fR is not the name of an array then 0 is returned.
+.\" METHOD: startsearch
 .TP
 \fBarray startsearch \fIarrayName\fR
+.
 This command initializes an element-by-element search through the
 array given by \fIarrayName\fR, such that invocations of the
 \fBarray nextelement\fR command will return the names of the
@@ -119,14 +196,18 @@ It is currently more efficient and easier to use either the \fBarray
 get\fR or \fBarray names\fR, together with \fBforeach\fR, to iterate
 over all but very large arrays.  See the examples below for how to do
 this.
+.\" METHOD: statistics
 .TP
 \fBarray statistics \fIarrayName\fR
+.
 Returns statistics about the distribution of data within the hashtable
 that represents the array.  This information includes the number of
 entries in the table, the number of buckets, and the utilization of
 the buckets.
+.\" METHOD: unset
 .TP
 \fBarray unset \fIarrayName\fR ?\fIpattern\fR?
+.
 Unsets all of the elements in the array that match \fIpattern\fR (using the
 matching rules of \fBstring match\fR).  If \fIarrayName\fR is not the name
 of an array variable or there are no matching elements in the array, no
@@ -136,14 +217,14 @@ The command always returns an empty string.
 .SH EXAMPLES
 .CS
 \fBarray set\fR colorcount {
-   red   1
-   green 5
-   blue  4
-   white 9
+    red   1
+    green 5
+    blue  4
+    white 9
 }
 
 foreach {color count} [\fBarray get\fR colorcount] {
-   puts "Color: $color Count: $count"
+    puts "Color: $color Count: $count"
 }
   \fB\(->\fR Color: blue Count: 4
     Color: white Count: 9
@@ -151,7 +232,7 @@ foreach {color count} [\fBarray get\fR colorcount] {
     Color: red Count: 1
 
 foreach color [\fBarray names\fR colorcount] {
-   puts "Color: $color Count: $colorcount($color)"
+    puts "Color: $color Count: $colorcount($color)"
 }
   \fB\(->\fR Color: blue Count: 4
     Color: white Count: 9
@@ -159,7 +240,7 @@ foreach color [\fBarray names\fR colorcount] {
     Color: red Count: 1
 
 foreach color [lsort [\fBarray names\fR colorcount]] {
-   puts "Color: $color Count: $colorcount($color)"
+    puts "Color: $color Count: $colorcount($color)"
 }
   \fB\(->\fR Color: blue Count: 4
     Color: green Count: 5
@@ -185,3 +266,7 @@ foreach color [lsort [\fBarray names\fR colorcount]] {
 list(n), string(n), variable(n), trace(n), foreach(n)
 .SH KEYWORDS
 array, element names, search
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/bgerror.n b/doc/bgerror.n
index da854f2..3644b3d 100644
--- a/doc/bgerror.n
+++ b/doc/bgerror.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH bgerror n 7.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,9 +14,8 @@ bgerror \- Command invoked to process background errors
 .SH SYNOPSIS
 \fBbgerror \fImessage\fR
 .BE
-
 .SH DESCRIPTION
-.VS 8.5
+.PP
 Release 8.5 of Tcl supports the \fBinterp bgerror\fR command,
 which allows applications to register in an interpreter the command
 that will handle background errors in that interpreter.  In older
@@ -28,7 +27,6 @@ describes the interface requirements of the \fBbgerror\fR command
 an application might define to retain compatibility with pre-8.5
 releases of Tcl.  Applications intending to support only
 Tcl releases 8.5 and later should simply make use of \fBinterp bgerror\fR.
-.VE 8.5
 .PP
 The \fBbgerror\fR command does not exist as built-in part of Tcl.  Instead,
 individual applications or users can define a \fBbgerror\fR
@@ -75,7 +73,9 @@ The reason for this is that the application programmer may also want
 to define a \fBbgerror\fR, or use other code that does and thus will
 have trouble integrating your code.
 .SH "EXAMPLE"
+.PP
 This \fBbgerror\fR procedure appends errors to a file, with a timestamp.
+.PP
 .CS
 proc bgerror {message} {
     set timestamp [clock format [clock seconds]]
@@ -84,9 +84,10 @@ proc bgerror {message} {
     close $fl
 }
 .CE
-
 .SH "SEE ALSO"
-after(n), interp(n), tclvars(n)
-
+after(n), errorCode(n), errorInfo(n), interp(n)
 .SH KEYWORDS
 background error, reporting
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/binary.n b/doc/binary.n
index 5f1efaf..911e170 100644
--- a/doc/binary.n
+++ b/doc/binary.n
@@ -1,9 +1,10 @@
 '\"
-'\" Copyright (c) 1997 by Sun Microsystems, Inc.
+'\" Copyright (c) 1997 Sun Microsystems, Inc.
+'\" Copyright (c) 2008 Donal K. Fellows
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH binary n 8.0 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -11,6 +12,10 @@
 .SH NAME
 binary \- Insert and extract fields from binary strings
 .SH SYNOPSIS
+\fBbinary decode \fIformat\fR ?\fI\-option value ...\fR? \fIdata\fR
+.br
+\fBbinary encode \fIformat\fR ?\fI\-option value ...\fR? \fIdata\fR
+.br
 \fBbinary format \fIformatString \fR?\fIarg arg ...\fR?
 .br
 \fBbinary scan \fIstring formatString \fR?\fIvarName varName ...\fR?
@@ -18,13 +23,127 @@ binary \- Insert and extract fields from binary strings
 .SH DESCRIPTION
 .PP
 This command provides facilities for manipulating binary data.  The
-first form, \fBbinary format\fR, creates a binary string from normal
+subcommand \fBbinary format\fR creates a binary string from normal
 Tcl values.  For example, given the values 16 and 22, on a 32-bit
 architecture, it might produce an 8-byte binary string consisting of
-two 4-byte integers, one for each of the numbers.  The second form of
-the command, \fBbinary scan\fR, does the opposite: it extracts data
+two 4-byte integers, one for each of the numbers.  The subcommand
+\fBbinary scan\fR, does the opposite: it extracts data
 from a binary string and returns it as ordinary Tcl string values.
+The \fBbinary encode\fR and \fBbinary decode\fR subcommands convert
+binary data to or from string encodings such as base64 (used in MIME
+messages for example).
+.PP
+Note that other operations on binary data, such as taking a subsequence of it,
+getting its length, or reinterpreting it as a string in some encoding, are
+done by other Tcl commands (respectively \fBstring range\fR,
+\fBstring length\fR and \fBencoding convertfrom\fR in the example cases).  A
+binary string in Tcl is merely one where all the characters it contains are in
+the range \eu0000\-\eu00FF.
+.SH "BINARY ENCODE AND DECODE"
+.\" METHOD: decode
+.\" METHOD: encode
+.PP
+When encoding binary data as a readable string, the starting binary data is
+passed to the \fBbinary encode\fR command, together with the name of the
+encoding to use and any encoding-specific options desired. Data which has been
+encoded can be converted back to binary form using \fBbinary decode\fR.
+The \fBbinary encode\fR command raises an error if the \fIdata\fR argument
+is not binary data. The following formats and options are supported.
+.TP
+\fBbase64\fR
+.
+The \fBbase64\fR binary encoding is commonly used in mail messages and XML
+documents, and uses mostly upper and lower case letters and digits. It has the
+distinction of being able to be rewrapped arbitrarily without losing
+information.
+.RS
+.PP
+During encoding, the following options are supported:
+.\" OPTION: -maxlen
+.TP
+\fB\-maxlen \fIlength\fR
+.
+Indicates that the output should be split into lines of no more than
+\fIlength\fR characters. By default, lines are not split.
+.\" OPTION: -wrapchar
+.TP
+\fB\-wrapchar \fIcharacter\fR
+.
+Indicates that, when lines are split because of the \fB\-maxlen\fR option,
+\fIcharacter\fR should be used to separate lines. By default, this is a
+newline character,
+.QW \en .
+.PP
+During decoding, the following options are supported:
+.\" OPTION: -strict
+.TP
+\fB\-strict\fR
+.
+Instructs the decoder to throw an error if it encounters any characters
+that are not strictly part of the encoding itself. Otherwise it ignores them.
+RFC 2045 calls for base64 decoders to be non-strict.
+.RE
+.TP
+\fBhex\fR
+.
+The \fBhex\fR binary encoding converts each byte to a pair of hexadecimal
+digits that represent the byte value as a hexadecimal integer.
+When encoding, lower characters are used.
+When decoding, upper and lower characters are accepted.
+.RS
+.PP
+No options are supported during encoding. During decoding, the following
+options are supported:
+.\" OPTION: -strict
+.TP
+\fB\-strict\fR
+.
+Instructs the decoder to throw an error if it encounters whitespace characters.
+Otherwise it ignores them.
+.RE
+.TP
+\fBuuencode\fR
+.
+The \fBuuencode\fR binary encoding used to be common for transfer of data
+between Unix systems and on USENET, but is less common these days, having been
+largely superseded by the \fBbase64\fR binary encoding.
+.RS
+.PP
+During encoding, the following options are supported (though changing them may
+produce files that other implementations of decoders cannot process):
+.\" OPTION: -maxlen
+.TP
+\fB\-maxlen \fIlength\fR
+.
+Indicates the maximum number of characters to produce for each encoded line.
+The valid range is 5 to 85. Line lengths outside that range cannot be
+accommodated by the encoding format. The default value is 61.
+.\" OPTION: -wrapchar
+.TP
+\fB\-wrapchar \fIcharacter\fR
+.
+Indicates the character(s) to use to mark the end of each encoded line.
+Acceptable values are a sequence of zero or more characters from the
+set { \\x09 (TAB), \\x0B (VT), \\x0C (FF), \\x0D (CR) } followed
+by zero or one newline \\x0A (LF).  Any other values are rejected because
+they would generate encoded text that could not be decoded. The default value
+is a single newline.
+.PP
+During decoding, the following options are supported:
+.\" OPTION: -strict
+.TP
+\fB\-strict\fR
+.
+Instructs the decoder to throw an error if it encounters anything
+outside of the standard encoding format. Without this option, the
+decoder tolerates some deviations, mostly to forgive reflows of lines
+between the encoder and decoder.
+.PP
+Note that neither the encoder nor the decoder handle the header and footer of
+the uuencode format.
+.RE
 .SH "BINARY FORMAT"
+.\" METHOD: format
 .PP
 The \fBbinary format\fR command generates a binary string whose layout
 is specified by the \fIformatString\fR and whose contents come from
@@ -38,14 +157,17 @@ Most field specifiers consume one argument to obtain the value to be
 formatted.  The type character specifies how the value is to be
 formatted.  The \fIcount\fR typically indicates how many items of the
 specified type are taken from the value.  If present, the \fIcount\fR
-is a non-negative decimal integer or \fB*\fR, which normally indicates
+is a non-negative decimal integer or
+.QW \fB*\fR ,
+which normally indicates
 that all of the items in the value are to be used.  If the number of
 arguments does not match the number of fields in the format string
 that consume arguments, then an error is generated. The flag character
-is ignored for for \fBbinary format\fR.
+is ignored for \fBbinary format\fR.
 .PP
 Here is a small example to clarify the relation between the field
 specifiers and the arguments:
+.PP
 .CS
 \fBbinary format\fR d3d {1.0 2.0 3.0 4.0} 0.1
 .CE
@@ -73,29 +195,63 @@ not part of the ISO 8859\-1 character set.)
 If \fIarg\fR has fewer than \fIcount\fR bytes, then additional zero
 bytes are used to pad out the field.  If \fIarg\fR is longer than the
 specified length, the extra characters will be ignored.  If
-\fIcount\fR is \fB*\fR, then all of the bytes in \fIarg\fR will be
+\fIcount\fR is
+.QW \fB*\fR ,
+then all of the bytes in \fIarg\fR will be
 formatted.  If \fIcount\fR is omitted, then one character will be
-formatted.  For example,
+formatted.  For example, the command:
 .RS
+.PP
 .CS
 \fBbinary format\fR a7a*a alpha bravo charlie
 .CE
-will return a string equivalent to \fBalpha\e000\e000bravoc\fR,
+.PP
+will return a binary string equivalent to:
+.PP
+.CS
+\fBalpha\e000\e000bravoc\fR
+.CE
+.PP
+the command:
+.PP
 .CS
 \fBbinary format\fR a* [encoding convertto utf-8 \eu20ac]
 .CE
-will return a string equivalent to \fB\e342\e202\e254\fR (which is the
-UTF-8 byte sequence for a Euro-currency character) and
+.PP
+will return a binary string equivalent to:
+.PP
+.CS
+\fB\e342\e202\e254\fR
+.CE
+.PP
+(which is the
+UTF-8 byte sequence for a Euro-currency character), and the command:
+.PP
 .CS
 \fBbinary format\fR a* [encoding convertto iso8859-15 \eu20ac]
 .CE
-will return a string equivalent to \fB\e244\fR (which is the ISO
+.PP
+will return a binary string equivalent to:
+.PP
+.CS
+\fB\e244\fR
+.CE
+.PP
+(which is the ISO
 8859\-15 byte sequence for a Euro-currency character). Contrast these
 last two with:
+.PP
 .CS
 \fBbinary format\fR a* \eu20ac
 .CE
-which returns a string equivalent to \fB\e254\fR (i.e. \fB\exac\fR) by
+.PP
+which returns a binary string equivalent to:
+.PP
+.CS
+\fB\e254\fR
+.CE
+.PP
+(i.e. \fB\exAC\fR) by
 truncating the high-bits of the character, and which is probably not
 what is desired.
 .RE
@@ -103,42 +259,62 @@ what is desired.
 This form is the same as \fBa\fR except that spaces are used for
 padding instead of nulls.  For example,
 .RS
+.PP
 .CS
 \fBbinary format\fR A6A*A alpha bravo charlie
 .CE
-will return \fBalpha bravoc\fR.
+.PP
+will return
+.PP
+.CS
+\fBalpha bravoc\fR
+.CE
 .RE
 .IP \fBb\fR 5
 Stores a string of \fIcount\fR binary digits in low-to-high order
-within each byte in the output string.  \fIArg\fR must contain a
+within each byte in the output binary string.  \fIArg\fR must contain a
 sequence of \fB1\fR and \fB0\fR characters.  The resulting bytes are
 emitted in first to last order with the bits being formatted in
 low-to-high order within each byte.  If \fIarg\fR has fewer than
 \fIcount\fR digits, then zeros will be used for the remaining bits.
 If \fIarg\fR has more than the specified number of digits, the extra
-digits will be ignored.  If \fIcount\fR is \fB*\fR, then all of the
+digits will be ignored.  If \fIcount\fR is
+.QW \fB*\fR ,
+then all of the
 digits in \fIarg\fR will be formatted.  If \fIcount\fR is omitted,
 then one digit will be formatted.  If the number of bits formatted
 does not end at a byte boundary, the remaining bits of the last byte
 will be zeros.  For example,
 .RS
+.PP
 .CS
 \fBbinary format\fR b5b* 11100 111000011010
 .CE
-will return a string equivalent to \fB\ex07\ex87\ex05\fR.
+.PP
+will return a binary string equivalent to:
+.PP
+.CS
+\fB\ex07\ex87\ex05\fR
+.CE
 .RE
 .IP \fBB\fR 5
 This form is the same as \fBb\fR except that the bits are stored in
 high-to-low order within each byte.  For example,
 .RS
+.PP
 .CS
 \fBbinary format\fR B5B* 11100 111000011010
 .CE
-will return a string equivalent to \fB\exe0\exe1\exa0\fR.
+.PP
+will return a binary string equivalent to:
+.PP
+.CS
+\fB\exE0\exE1\exA0\fR
+.CE
 .RE
 .IP \fBH\fR 5
 Stores a string of \fIcount\fR hexadecimal digits in high-to-low
-within each byte in the output string.  \fIArg\fR must contain a
+within each byte in the output binary string.  \fIArg\fR must contain a
 sequence of characters in the set
 .QW 0123456789abcdefABCDEF .
 The resulting bytes are emitted in first to last order with the hex digits
@@ -146,43 +322,66 @@ being formatted in high-to-low order within each byte.  If \fIarg\fR
 has fewer than \fIcount\fR digits, then zeros will be used for the
 remaining digits.  If \fIarg\fR has more than the specified number of
 digits, the extra digits will be ignored.  If \fIcount\fR is
-\fB*\fR, then all of the digits in \fIarg\fR will be formatted.  If
+.QW \fB*\fR ,
+then all of the digits in \fIarg\fR will be formatted.  If
 \fIcount\fR is omitted, then one digit will be formatted.  If the
 number of digits formatted does not end at a byte boundary, the
 remaining bits of the last byte will be zeros.  For example,
 .RS
+.PP
 .CS
 \fBbinary format\fR H3H*H2 ab DEF 987
 .CE
-will return a string equivalent to \fB\exab\ex00\exde\exf0\ex98\fR.
+.PP
+will return a binary string equivalent to:
+.PP
+.CS
+\fB\exAB\ex00\exDE\exF0\ex98\fR
+.CE
 .RE
 .IP \fBh\fR 5
 This form is the same as \fBH\fR except that the digits are stored in
 low-to-high order within each byte. This is seldom required. For example,
 .RS
+.PP
 .CS
 \fBbinary format\fR h3h*h2 AB def 987
 .CE
-will return a string equivalent to \fB\exba\ex00\exed\ex0f\ex89\fR.
+.PP
+will return a binary string equivalent to:
+.PP
+.CS
+\fB\exBA\ex00\exED\ex0F\ex89\fR
+.CE
 .RE
 .IP \fBc\fR 5
 Stores one or more 8-bit integer values in the output string.  If no
 \fIcount\fR is specified, then \fIarg\fR must consist of an integer
 value. If \fIcount\fR is specified, \fIarg\fR must consist of a list
 containing at least that many integers. The low-order 8 bits of each integer
-are stored as a one-byte value at the cursor position.  If \fIcount\fR
-is \fB*\fR, then all of the integers in the list are formatted. If the
+are stored as a one-byte value at the cursor position.  If \fIcount\fR is
+.QW \fB*\fR ,
+then all of the integers in the list are formatted. If the
 number of elements in the list is greater
 than \fIcount\fR, then the extra elements are ignored.  For example,
 .RS
+.PP
 .CS
 \fBbinary format\fR c3cc* {3 -3 128 1} 260 {2 5}
 .CE
-will return a string equivalent to
-\fB\ex03\exfd\ex80\ex04\ex02\ex05\fR, whereas
+.PP
+will return a binary string equivalent to:
+.PP
+.CS
+\fB\ex03\exFD\ex80\ex04\ex02\ex05\fR
+.CE
+.PP
+whereas:
+.PP
 .CS
 \fBbinary format\fR c {2 5}
 .CE
+.PP
 will generate an error.
 .RE
 .IP \fBs\fR 5
@@ -192,31 +391,39 @@ low-order 16-bits of each integer are stored as a two-byte value at
 the cursor position with the least significant byte stored first.  For
 example,
 .RS
+.PP
 .CS
 \fBbinary format\fR s3 {3 -3 258 1}
 .CE
-will return a string equivalent to 
-\fB\ex03\ex00\exfd\exff\ex02\ex01\fR.
+.PP
+will return a binary string equivalent to:
+.PP
+.CS
+\fB\ex03\ex00\exFD\exFF\ex02\ex01\fR
+.CE
 .RE
 .IP \fBS\fR 5
 This form is the same as \fBs\fR except that it stores one or more
 16-bit integers in big-endian byte order in the output string.  For
 example,
 .RS
+.PP
 .CS
 \fBbinary format\fR S3 {3 -3 258 1}
 .CE
-will return a string equivalent to 
-\fB\ex00\ex03\exff\exfd\ex01\ex02\fR.
+.PP
+will return a binary string equivalent to:
+.PP
+.CS
+\fB\ex00\ex03\exFF\exFD\ex01\ex02\fR
+.CE
 .RE
 .IP \fBt\fR 5
-.VS 8.5
 This form (mnemonically \fItiny\fR) is the same as \fBs\fR and \fBS\fR
 except that it stores the 16-bit integers in the output string in the
 native byte order of the machine where the Tcl script is running.
 To determine what the native byte order of the machine is, refer to
 the \fBbyteOrder\fR element of the \fBtcl_platform\fR array.
-.VE 8.5
 .IP \fBi\fR 5
 This form is the same as \fBc\fR except that it stores one or more
 32-bit integers in little-endian byte order in the output string.  The
@@ -224,32 +431,40 @@ low-order 32-bits of each integer are stored as a four-byte value at
 the cursor position with the least significant byte stored first.  For
 example,
 .RS
+.PP
 .CS
 \fBbinary format\fR i3 {3 -3 65536 1}
 .CE
-will return a string equivalent to 
-\fB\ex03\ex00\ex00\ex00\exfd\exff\exff\exff\ex00\ex00\ex01\ex00\fR
+.PP
+will return a binary string equivalent to:
+.PP
+.CS
+\fB\ex03\ex00\ex00\ex00\exFD\exFF\exFF\exFF\ex00\ex00\ex01\ex00\fR
+.CE
 .RE
 .IP \fBI\fR 5
 This form is the same as \fBi\fR except that it stores one or more one
 or more 32-bit integers in big-endian byte order in the output string.
 For example,
 .RS
+.PP
 .CS
 \fBbinary format\fR I3 {3 -3 65536 1}
 .CE
-will return a string equivalent to 
-\fB\ex00\ex00\ex00\ex03\exff\exff\exff\exfd\ex00\ex01\ex00\ex00\fR
+.PP
+will return a binary string equivalent to:
+.PP
+.CS
+\fB\ex00\ex00\ex00\ex03\exFF\exFF\exFF\exFD\ex00\ex01\ex00\ex00\fR
+.CE
 .RE
 .IP \fBn\fR 5
-.VS 8.5
 This form (mnemonically \fInumber\fR or \fInormal\fR) is the same as
 \fBi\fR and \fBI\fR except that it stores the 32-bit integers in the
 output string in the native byte order of the machine where the Tcl
 script is running.
 To determine what the native byte order of the machine is, refer to
 the \fBbyteOrder\fR element of the \fBtcl_platform\fR array.
-.VE 8.5
 .IP \fBw\fR 5
 This form is the same as \fBc\fR except that it stores one or more
 64-bit integers in little-endian byte order in the output string.  The
@@ -257,30 +472,32 @@ low-order 64-bits of each integer are stored as an eight-byte value at
 the cursor position with the least significant byte stored first.  For
 example,
 .RS
+.PP
 .CS
 \fBbinary format\fR w 7810179016327718216
 .CE
-will return the string \fBHelloTcl\fR
+.PP
+will return the binary string \fBHelloTcl\fR.
 .RE
 .IP \fBW\fR 5
 This form is the same as \fBw\fR except that it stores one or more one
 or more 64-bit integers in big-endian byte order in the output string.
 For example,
 .RS
+.PP
 .CS
 \fBbinary format\fR Wc 4785469626960341345 110
 .CE
-will return the string \fBBigEndian\fR
+.PP
+will return the binary string \fBBigEndian\fR
 .RE
 .IP \fBm\fR 5
-.VS 8.5
 This form (mnemonically the mirror of \fBw\fR) is the same as \fBw\fR
 and \fBW\fR except that it stores the 64-bit integers in the output
 string in the native byte order of the machine where the Tcl script is
 running.
 To determine what the native byte order of the machine is, refer to
 the \fBbyteOrder\fR element of the \fBtcl_platform\fR array.
-.VE 8.5
 .IP \fBf\fR 5
 This form is the same as \fBc\fR except that it stores one or more one
 or more single-precision floating point numbers in the machine's native
@@ -295,72 +512,85 @@ double-precision floating point numbers internally, there may be some
 loss of precision in the conversion to single-precision.  For example,
 on a Windows system running on an Intel Pentium processor,
 .RS
+.PP
 .CS
 \fBbinary format\fR f2 {1.6 3.4}
 .CE
-will return a string equivalent to 
-\fB\excd\excc\excc\ex3f\ex9a\ex99\ex59\ex40\fR.
+.PP
+will return a binary string equivalent to:
+.PP
+.CS
+\fB\exCD\exCC\exCC\ex3F\ex9A\ex99\ex59\ex40\fR
+.CE
 .RE
 .IP \fBr\fR 5
-.VS 8.5
 This form (mnemonically \fIreal\fR) is the same as \fBf\fR except that
 it stores the single-precision floating point numbers in little-endian
 order.  This conversion only produces meaningful output when used on
 machines which use the IEEE floating point representation (very
 common, but not universal.)
-.VE 8.5
 .IP \fBR\fR 5
-.VS 8.5
 This form is the same as \fBr\fR except that it stores the
 single-precision floating point numbers in big-endian order.
-.VE 8.5
 .IP \fBd\fR 5
 This form is the same as \fBf\fR except that it stores one or more one
 or more double-precision floating point numbers in the machine's native
 representation in the output string.  For example, on a
 Windows system running on an Intel Pentium processor,
 .RS
+.PP
 .CS
 \fBbinary format\fR d1 {1.6}
 .CE
-will return a string equivalent to 
-\fB\ex9a\ex99\ex99\ex99\ex99\ex99\exf9\ex3f\fR.
+.PP
+will return a binary string equivalent to:
+.PP
+.CS
+\fB\ex9A\ex99\ex99\ex99\ex99\ex99\exF9\ex3F\fR
+.CE
 .RE
 .IP \fBq\fR 5
-.VS 8.5
 This form (mnemonically the mirror of \fBd\fR) is the same as \fBd\fR
 except that it stores the double-precision floating point numbers in
 little-endian order.  This conversion only produces meaningful output
 when used on machines which use the IEEE floating point representation
 (very common, but not universal.)
-.VE 8.5
 .IP \fBQ\fR 5
-.VS 8.5
 This form is the same as \fBq\fR except that it stores the
 double-precision floating point numbers in big-endian order.
-.VE 8.5
 .IP \fBx\fR 5
 Stores \fIcount\fR null bytes in the output string.  If \fIcount\fR is
-not specified, stores one null byte.  If \fIcount\fR is \fB*\fR,
+not specified, stores one null byte.  If \fIcount\fR is
+.QW \fB*\fR ,
 generates an error.  This type does not consume an argument.  For
 example,
 .RS
+.PP
 .CS
 \fBbinary format\fR a3xa3x2a3 abc def ghi
 .CE
-will return a string equivalent to \fBabc\e000def\e000\e000ghi\fR.
+.PP
+will return a binary string equivalent to:
+.PP
+.CS
+\fBabc\e000def\e000\e000ghi\fR
+.CE
 .RE
 .IP \fBX\fR 5
 Moves the cursor back \fIcount\fR bytes in the output string.  If
-\fIcount\fR is \fB*\fR or is larger than the current cursor position,
+\fIcount\fR is
+.QW \fB*\fR
+or is larger than the current cursor position,
 then the cursor is positioned at location 0 so that the next byte
 stored will be the first byte in the result string.  If \fIcount\fR is
 omitted then the cursor is moved back one byte.  This type does not
 consume an argument.  For example,
 .RS
+.PP
 .CS
 \fBbinary format\fR a3X*a3X2a3 abc def ghi
 .CE
+.PP
 will return \fBdghi\fR.
 .RE
 .IP \fB@\fR 5
@@ -369,22 +599,31 @@ specified by \fIcount\fR.  Position 0 refers to the first byte in the
 output string.  If \fIcount\fR refers to a position beyond the last
 byte stored so far, then null bytes will be placed in the uninitialized
 locations and the cursor will be placed at the specified location.  If
-\fIcount\fR is \fB*\fR, then the cursor is moved to the current end of
+\fIcount\fR is
+.QW \fB*\fR ,
+then the cursor is moved to the current end of
 the output string.  If \fIcount\fR is omitted, then an error will be
 generated.  This type does not consume an argument. For example,
 .RS
+.PP
 .CS
 \fBbinary format\fR a5@2a1@*a3@10a1 abcde f ghi j
 .CE
-will return \fBabfdeghi\e000\e000j\fR.
+.PP
+will return
+.PP
+.CS
+\fBabfdeghi\e000\e000j\fR
+.CE
 .RE
 .SH "BINARY SCAN"
+.\" METHOD: scan
 .PP
 The \fBbinary scan\fR command parses fields from a binary string,
 returning the number of conversions performed.  \fIString\fR gives the
-input bytes to be parsed (one byte per character, and characters not
-representable as a byte have their high bits chopped)
-and \fIformatString\fR indicates how to parse it.
+input bytes to be parsed and \fIformatString\fR indicates how to parse it.
+An error is raised if \fIstring\fR is anything other than a valid binary
+data value.
 Each \fIvarName\fR gives the name of a variable; when a field is
 scanned from \fIstring\fR the result is assigned to the corresponding
 variable.
@@ -398,8 +637,9 @@ argument to obtain the variable into which the scanned values should
 be placed.  The type character specifies how the binary data is to be
 interpreted.  The \fIcount\fR typically indicates how many items of
 the specified type are taken from the data.  If present, the
-\fIcount\fR is a non-negative decimal integer or \fB*\fR, which
-normally indicates that all of the remaining items in the data are to
+\fIcount\fR is a non-negative decimal integer or
+.QW \fB*\fR ,
+which normally indicates that all of the remaining items in the data are to
 be used.  If there are not enough bytes left after the current cursor
 position to satisfy the current field specifier, then the
 corresponding variable is left untouched and \fBbinary scan\fR returns
@@ -413,6 +653,7 @@ is accepted for all field types but is ignored for non-integer fields.
 A similar example as with \fBbinary format\fR should explain the
 relation between field specifiers and arguments in case of the binary
 scan subcommand:
+.PP
 .CS
 \fBbinary scan\fR $bytes s3s first second
 .CE
@@ -424,12 +665,15 @@ If \fIbytes\fR contains fewer than 8 bytes (i.e. four 2-byte
 integers), no assignment to \fIsecond\fR will be made, and if
 \fIbytes\fR contains fewer than 6 bytes (i.e. three 2-byte integers),
 no assignment to \fIfirst\fR will be made.  Hence:
+.PP
 .CS
 puts [\fBbinary scan\fR abcdefg s3s first second]
 puts $first
 puts $second
 .CE
+.PP
 will print (assuming neither variable is set previously):
+.PP
 .CS
 1
 25185 25699 26213
@@ -441,14 +685,17 @@ It is \fIimportant\fR to note that the \fBc\fR, \fBs\fR, and \fBS\fR
 long data size values.  In doing this, values that have their high
 bit set (0x80 for chars, 0x8000 for shorts, 0x80000000 for ints),
 will be sign extended.  Thus the following will occur:
+.PP
 .CS
 set signShort [\fBbinary format\fR s1 0x8000]
 \fBbinary scan\fR $signShort s1 val; \fI# val == 0xFFFF8000\fR
 .CE
+.PP
 If you require unsigned values you can include the
 .QW u
 flag character following
 the field type. For example, to read an unsigned short value:
+.PP
 .CS
 set signShort [\fBbinary format\fR s1 0x8000]
 \fBbinary scan\fR $signShort su1 val; \fI# val == 0x00008000\fR
@@ -459,8 +706,9 @@ reading bytes from the current position.  The cursor is initially
 at position 0 at the beginning of the data.  The type may be any one of
 the following characters:
 .IP \fBa\fR 5
-The data is a byte string of length \fIcount\fR.  If \fIcount\fR
-is \fB*\fR, then all of the remaining bytes in \fIstring\fR will be
+The data is a byte string of length \fIcount\fR.  If \fIcount\fR is
+.QW \fB*\fR ,
+then all of the remaining bytes in \fIstring\fR will be
 scanned into the variable.  If \fIcount\fR is omitted, then one
 byte will be scanned.
 All bytes scanned will be interpreted as being characters in the
@@ -469,24 +717,30 @@ needed if the string is not a binary string or a string encoded in ISO
 8859\-1.
 For example,
 .RS
+.PP
 .CS
 \fBbinary scan\fR abcde\e000fghi a6a10 var1 var2
 .CE
+.PP
 will return \fB1\fR with the string equivalent to \fBabcde\e000\fR
 stored in \fIvar1\fR and \fIvar2\fR left unmodified, and
+.PP
 .CS
 \fBbinary scan\fR \e342\e202\e254 a* var1
 set var2 [encoding convertfrom utf-8 $var1]
 .CE
+.PP
 will store a Euro-currency character in \fIvar2\fR.
 .RE
 .IP \fBA\fR 5
 This form is the same as \fBa\fR, except trailing blanks and nulls are stripped from
 the scanned value before it is stored in the variable.  For example,
 .RS
+.PP
 .CS
 \fBbinary scan\fR "abc efghi  \e000" A* var1
 .CE
+.PP
 will return \fB1\fR with \fBabc efghi\fR stored in \fIvar1\fR.
 .RE
 .IP \fBb\fR 5
@@ -497,13 +751,16 @@ and
 .QW 0
 characters.  The data bytes are scanned in first to last order with
 the bits being taken in low-to-high order within each byte.  Any extra
-bits in the last byte are ignored.  If \fIcount\fR is \fB*\fR, then
-all of the remaining bits in \fIstring\fR will be scanned.  If
+bits in the last byte are ignored.  If \fIcount\fR is
+.QW \fB*\fR ,
+then all of the remaining bits in \fIstring\fR will be scanned.  If
 \fIcount\fR is omitted, then one bit will be scanned.  For example,
 .RS
+.PP
 .CS
 \fBbinary scan\fR \ex07\ex87\ex05 b5b* var1 var2
 .CE
+.PP
 will return \fB2\fR with \fB11100\fR stored in \fIvar1\fR and
 \fB1110000110100000\fR stored in \fIvar2\fR.
 .RE
@@ -511,12 +768,23 @@ will return \fB2\fR with \fB11100\fR stored in \fIvar1\fR and
 This form is the same as \fBb\fR, except the bits are taken in
 high-to-low order within each byte.  For example,
 .RS
+.PP
 .CS
 \fBbinary scan\fR \ex70\ex87\ex05 B5B* var1 var2
 .CE
+.PP
 will return \fB2\fR with \fB01110\fR stored in \fIvar1\fR and
 \fB1000011100000101\fR stored in \fIvar2\fR.
 .RE
+.IP \fBC\fR 5
+This form is similar to \fBA\fR, except that it scans the data from start
+and terminates at the first null (C string semantics). For example,
+.RS
+.CS
+\fBbinary scan\fR "abc\e000efghi" C* var1
+.CE
+will return \fB1\fR with \fBabc\fR stored in \fIvar1\fR.
+.RE
 .IP \fBH\fR 5
 The data is turned into a string of \fIcount\fR hexadecimal digits in
 high-to-low order represented as a sequence of characters in the set
@@ -524,13 +792,16 @@ high-to-low order represented as a sequence of characters in the set
 The data bytes are scanned in first to last
 order with the hex digits being taken in high-to-low order within each
 byte. Any extra bits in the last byte are ignored. If \fIcount\fR is
-\fB*\fR, then all of the remaining hex digits in \fIstring\fR will be
+.QW \fB*\fR ,
+then all of the remaining hex digits in \fIstring\fR will be
 scanned. If \fIcount\fR is omitted, then one hex digit will be
 scanned. For example,
 .RS
+.PP
 .CS
-\fBbinary scan\fR \ex07\exC6\ex05\ex1f\ex34 H3H* var1 var2
+\fBbinary scan\fR \ex07\exC6\ex05\ex1F\ex34 H3H* var1 var2
 .CE
+.PP
 will return \fB2\fR with \fB07c\fR stored in \fIvar1\fR and
 \fB051f34\fR stored in \fIvar2\fR.
 .RE
@@ -538,151 +809,164 @@ will return \fB2\fR with \fB07c\fR stored in \fIvar1\fR and
 This form is the same as \fBH\fR, except the digits are taken in
 reverse (low-to-high) order within each byte. For example,
 .RS
+.PP
 .CS
 \fBbinary scan\fR \ex07\ex86\ex05\ex12\ex34 h3h* var1 var2
 .CE
+.PP
 will return \fB2\fR with \fB706\fR stored in \fIvar1\fR and
 \fB502143\fR stored in \fIvar2\fR.
-.RE
+.PP
 Note that most code that wishes to parse the hexadecimal digits from
 multiple bytes in order should use the \fBH\fR format.
+.RE
 .IP \fBc\fR 5
 The data is turned into \fIcount\fR 8-bit signed integers and stored
-in the corresponding variable as a list. If \fIcount\fR is \fB*\fR,
+in the corresponding variable as a list, or as unsigned if \fBu\fR is placed
+immediately after the \fBc\fR. If \fIcount\fR is
+.QW \fB*\fR ,
 then all of the remaining bytes in \fIstring\fR will be scanned.  If
 \fIcount\fR is omitted, then one 8-bit integer will be scanned.  For
 example,
 .RS
+.PP
 .CS
 \fBbinary scan\fR \ex07\ex86\ex05 c2c* var1 var2
 .CE
+.PP
 will return \fB2\fR with \fB7 -122\fR stored in \fIvar1\fR and \fB5\fR
-stored in \fIvar2\fR.  Note that the integers returned are signed, but
-they can be converted to unsigned 8-bit quantities using an expression
-like:
-.CS
-set num [expr { $num & 0xFF }]
-.CE
+stored in \fIvar2\fR.  Note that the integers returned are signed unless
+\fBcu\fR in place of \fBc\fR.
 .RE
 .IP \fBs\fR 5
 The data is interpreted as \fIcount\fR 16-bit signed integers
-represented in little-endian byte order.  The integers are stored in
-the corresponding variable as a list.  If \fIcount\fR is \fB*\fR, then
-all of the remaining bytes in \fIstring\fR will be scanned.  If
+represented in little-endian byte order, or as unsigned if \fBu\fR is placed
+immediately after the \fBs\fR.  The integers are stored in
+the corresponding variable as a list.  If \fIcount\fR is
+.QW \fB*\fR ,
+then all of the remaining bytes in \fIstring\fR will be scanned.  If
 \fIcount\fR is omitted, then one 16-bit integer will be scanned.  For
 example,
 .RS
+.PP
 .CS
-\fBbinary scan\fR \ex05\ex00\ex07\ex00\exf0\exff s2s* var1 var2
+\fBbinary scan\fR \ex05\ex00\ex07\ex00\exF0\exFF s2s* var1 var2
 .CE
+.PP
 will return \fB2\fR with \fB5 7\fR stored in \fIvar1\fR and \fB\-16\fR
-stored in \fIvar2\fR.  Note that the integers returned are signed, but
-they can be converted to unsigned 16-bit quantities using an expression
-like:
-.CS
-set num [expr { $num & 0xFFFF }]
-.CE
+stored in \fIvar2\fR.  Note that the integers returned are signed unless
+\fBsu\fR is used in place of \fBs\fR.
 .RE
 .IP \fBS\fR 5
 This form is the same as \fBs\fR except that the data is interpreted
-as \fIcount\fR 16-bit signed integers represented in big-endian byte
+as \fIcount\fR 16-bit integers represented in big-endian byte
 order.  For example,
 .RS
+.PP
 .CS
-\fBbinary scan\fR \ex00\ex05\ex00\ex07\exff\exf0 S2S* var1 var2
+\fBbinary scan\fR \ex00\ex05\ex00\ex07\exFF\exF0 S2S* var1 var2
 .CE
+.PP
 will return \fB2\fR with \fB5 7\fR stored in \fIvar1\fR and \fB\-16\fR
-stored in \fIvar2\fR. 
+stored in \fIvar2\fR.
 .RE
 .IP \fBt\fR 5
-.VS 8.5
 The data is interpreted as \fIcount\fR 16-bit signed integers
 represented in the native byte order of the machine running the Tcl
-script.  It is otherwise identical to \fBs\fR and \fBS\fR.
+script, or as unsigned if \fBu\fR is placed
+immediately after the \fBt\fR.  It is otherwise identical to \fBs\fR and \fBS\fR.
 To determine what the native byte order of the machine is, refer to
 the \fBbyteOrder\fR element of the \fBtcl_platform\fR array.
-.VE 8.5
 .IP \fBi\fR 5
 The data is interpreted as \fIcount\fR 32-bit signed integers
-represented in little-endian byte order.  The integers are stored in
-the corresponding variable as a list.  If \fIcount\fR is \fB*\fR, then
-all of the remaining bytes in \fIstring\fR will be scanned.  If
+represented in little-endian byte order, or as unsigned if \fBu\fR is placed
+immediately after the \fBi\fR.  The integers are stored in
+the corresponding variable as a list.  If \fIcount\fR is
+.QW \fB*\fR ,
+then all of the remaining bytes in \fIstring\fR will be scanned.  If
 \fIcount\fR is omitted, then one 32-bit integer will be scanned.  For
 example,
 .RS
+.PP
 .CS
-set str \ex05\ex00\ex00\ex00\ex07\ex00\ex00\ex00\exf0\exff\exff\exff
+set str \ex05\ex00\ex00\ex00\ex07\ex00\ex00\ex00\exF0\exFF\exFF\exFF
 \fBbinary scan\fR $str i2i* var1 var2
 .CE
+.PP
 will return \fB2\fR with \fB5 7\fR stored in \fIvar1\fR and \fB\-16\fR
-stored in \fIvar2\fR.  Note that the integers returned are signed, but
-they can be converted to unsigned 32-bit quantities using an expression
-like:
-.CS
-set num [expr { $num & 0xFFFFFFFF }]
-.CE
+stored in \fIvar2\fR.  Note that the integers returned are signed unless
+\fBiu\fR is used in place of \fBi\fR.
 .RE
 .IP \fBI\fR 5
 This form is the same as \fBI\fR except that the data is interpreted
 as \fIcount\fR 32-bit signed integers represented in big-endian byte
-order.  For example,
+order, or as unsigned if \fBu\fR is placed
+immediately after the \fBI\fR.  For example,
 .RS
+.PP
 .CS
-set str \ex00\ex00\ex00\ex05\ex00\ex00\ex00\ex07\exff\exff\exff\exf0
+set str \ex00\ex00\ex00\ex05\ex00\ex00\ex00\ex07\exFF\exFF\exFF\exF0
 \fBbinary scan\fR $str I2I* var1 var2
 .CE
+.PP
 will return \fB2\fR with \fB5 7\fR stored in \fIvar1\fR and \fB\-16\fR
 stored in \fIvar2\fR.
 .RE
 .IP \fBn\fR 5
-.VS 8.5
 The data is interpreted as \fIcount\fR 32-bit signed integers
 represented in the native byte order of the machine running the Tcl
-script.  It is otherwise identical to \fBi\fR and \fBI\fR.
+script, or as unsigned if \fBu\fR is placed
+immediately after the \fBn\fR.  It is otherwise identical to \fBi\fR and \fBI\fR.
 To determine what the native byte order of the machine is, refer to
 the \fBbyteOrder\fR element of the \fBtcl_platform\fR array.
-.VE 8.5
 .IP \fBw\fR 5
 The data is interpreted as \fIcount\fR 64-bit signed integers
-represented in little-endian byte order.  The integers are stored in
-the corresponding variable as a list.  If \fIcount\fR is \fB*\fR, then
-all of the remaining bytes in \fIstring\fR will be scanned.  If
+represented in little-endian byte order, or as unsigned if \fBu\fR is placed
+immediately after the \fBw\fR.  The integers are stored in
+the corresponding variable as a list.  If \fIcount\fR is
+.QW \fB*\fR ,
+then all of the remaining bytes in \fIstring\fR will be scanned.  If
 \fIcount\fR is omitted, then one 64-bit integer will be scanned.  For
 example,
 .RS
+.PP
 .CS
-set str \ex05\ex00\ex00\ex00\ex07\ex00\ex00\ex00\exf0\exff\exff\exff
+set str \ex05\ex00\ex00\ex00\ex07\ex00\ex00\ex00\exF0\exFF\exFF\exFF
 \fBbinary scan\fR $str wi* var1 var2
 .CE
+.PP
 will return \fB2\fR with \fB30064771077\fR stored in \fIvar1\fR and
-\fB\-16\fR stored in \fIvar2\fR.  Note that the integers returned are
-signed and cannot be represented by Tcl as unsigned values.
+\fB\-16\fR stored in \fIvar2\fR.
 .RE
 .IP \fBW\fR 5
 This form is the same as \fBw\fR except that the data is interpreted
 as \fIcount\fR 64-bit signed integers represented in big-endian byte
-order.  For example,
+order, or as unsigned if \fBu\fR is placed
+immediately after the \fBW\fR.  For example,
 .RS
+.PP
 .CS
-set str \ex00\ex00\ex00\ex05\ex00\ex00\ex00\ex07\exff\exff\exff\exf0
+set str \ex00\ex00\ex00\ex05\ex00\ex00\ex00\ex07\exFF\exFF\exFF\exF0
 \fBbinary scan\fR $str WI* var1 var2
 .CE
+.PP
 will return \fB2\fR with \fB21474836487\fR stored in \fIvar1\fR and \fB\-16\fR
 stored in \fIvar2\fR.
 .RE
 .IP \fBm\fR 5
-.VS 8.5
 The data is interpreted as \fIcount\fR 64-bit signed integers
 represented in the native byte order of the machine running the Tcl
-script.  It is otherwise identical to \fBw\fR and \fBW\fR.
+script, or as unsigned if \fBu\fR is placed
+immediately after the \fBm\fR.  It is otherwise identical to \fBw\fR and \fBW\fR.
 To determine what the native byte order of the machine is, refer to
 the \fBbyteOrder\fR element of the \fBtcl_platform\fR array.
-.VE 8.5
 .IP \fBf\fR 5
 The data is interpreted as \fIcount\fR single-precision floating point
 numbers in the machine's native representation.  The floating point
 numbers are stored in the corresponding variable as a list.  If
-\fIcount\fR is \fB*\fR, then all of the remaining bytes in
+\fIcount\fR is
+.QW \fB*\fR ,
+then all of the remaining bytes in
 \fIstring\fR will be scanned.  If \fIcount\fR is omitted, then one
 single-precision floating point number will be scanned.  The size of a
 floating point number may vary across architectures, so the number of
@@ -691,76 +975,80 @@ valid floating point number, the resulting value is undefined and
 compiler dependent.  For example, on a Windows system running on an
 Intel Pentium processor,
 .RS
+.PP
 .CS
-\fBbinary scan\fR \ex3f\excc\excc\excd f var1
+\fBbinary scan\fR \ex3F\exCC\exCC\exCD f var1
 .CE
+.PP
 will return \fB1\fR with \fB1.6000000238418579\fR stored in
 \fIvar1\fR.
 .RE
 .IP \fBr\fR 5
-.VS 8.5
 This form is the same as \fBf\fR except that the data is interpreted
 as \fIcount\fR single-precision floating point number in little-endian
 order.  This conversion is not portable to the minority of systems not
 using IEEE floating point representations.
-.VE 8.5
 .IP \fBR\fR 5
-.VS 8.5
 This form is the same as \fBf\fR except that the data is interpreted
 as \fIcount\fR single-precision floating point number in big-endian
 order.  This conversion is not portable to the minority of systems not
 using IEEE floating point representations.
-.VE 8.5
 .IP \fBd\fR 5
 This form is the same as \fBf\fR except that the data is interpreted
 as \fIcount\fR double-precision floating point numbers in the
 machine's native representation. For example, on a Windows system
 running on an Intel Pentium processor,
 .RS
+.PP
 .CS
-\fBbinary scan\fR \ex9a\ex99\ex99\ex99\ex99\ex99\exf9\ex3f d var1
+\fBbinary scan\fR \ex9A\ex99\ex99\ex99\ex99\ex99\exF9\ex3F d var1
 .CE
+.PP
 will return \fB1\fR with \fB1.6000000000000001\fR
 stored in \fIvar1\fR.
 .RE
 .IP \fBq\fR 5
-.VS 8.5
 This form is the same as \fBd\fR except that the data is interpreted
 as \fIcount\fR double-precision floating point number in little-endian
 order.  This conversion is not portable to the minority of systems not
 using IEEE floating point representations.
-.VE 8.5
 .IP \fBQ\fR 5
-.VS 8.5
 This form is the same as \fBd\fR except that the data is interpreted
 as \fIcount\fR double-precision floating point number in big-endian
 order.  This conversion is not portable to the minority of systems not
 using IEEE floating point representations.
-.VE 8.5
 .IP \fBx\fR 5
 Moves the cursor forward \fIcount\fR bytes in \fIstring\fR.  If
-\fIcount\fR is \fB*\fR or is larger than the number of bytes after the
+\fIcount\fR is
+.QW \fB*\fR
+or is larger than the number of bytes after the
 current cursor position, then the cursor is positioned after
 the last byte in \fIstring\fR.  If \fIcount\fR is omitted, then the
 cursor is moved forward one byte.  Note that this type does not
 consume an argument.  For example,
 .RS
+.PP
 .CS
 \fBbinary scan\fR \ex01\ex02\ex03\ex04 x2H* var1
 .CE
+.PP
 will return \fB1\fR with \fB0304\fR stored in \fIvar1\fR.
 .RE
 .IP \fBX\fR 5
 Moves the cursor back \fIcount\fR bytes in \fIstring\fR.  If
-\fIcount\fR is \fB*\fR or is larger than the current cursor position,
+\fIcount\fR is
+.QW \fB*\fR
+or is larger than the current cursor position,
 then the cursor is positioned at location 0 so that the next byte
 scanned will be the first byte in \fIstring\fR.  If \fIcount\fR
 is omitted then the cursor is moved back one byte.  Note that this
 type does not consume an argument.  For example,
 .RS
+.PP
 .CS
 \fBbinary scan\fR \ex01\ex02\ex03\ex04 c2XH* var1 var2
 .CE
+.PP
 will return \fB2\fR with \fB1 2\fR stored in \fIvar1\fR and \fB020304\fR
 stored in \fIvar2\fR.
 .RE
@@ -771,13 +1059,16 @@ by \fIcount\fR.  Note that position 0 refers to the first byte in
 \fIstring\fR, then the cursor is positioned after the last byte.  If
 \fIcount\fR is omitted, then an error will be generated.  For example,
 .RS
+.PP
 .CS
 \fBbinary scan\fR \ex01\ex02\ex03\ex04 c2@1H* var1 var2
 .CE
+.PP
 will return \fB2\fR with \fB1 2\fR stored in \fIvar1\fR and \fB020304\fR
 stored in \fIvar2\fR.
 .RE
 .SH "PORTABILITY ISSUES"
+.PP
 The \fBr\fR, \fBR\fR, \fBq\fR and \fBQ\fR conversions will only work
 reliably for transferring data between computers which are all using
 IEEE floating point representations.  This is very common, but not
@@ -785,8 +1076,10 @@ universal.  To transfer floating-point numbers portably between all
 architectures, use their textual representation (as produced by
 \fBformat\fR) instead.
 .SH EXAMPLES
+.PP
 This is a procedure to write a Tcl string to a binary-encoded channel as
 UTF-8 data preceded by a length word:
+.PP
 .CS
 proc \fIwriteString\fR {channel string} {
     set data [encoding convertto utf-8 $string]
@@ -797,6 +1090,7 @@ proc \fIwriteString\fR {channel string} {
 .PP
 This procedure reads a string from a channel that was written by the
 previously presented \fIwriteString\fR procedure:
+.PP
 .CS
 proc \fIreadString\fR {channel} {
     if {![\fBbinary scan\fR [read $channel 4] I length]} {
@@ -806,7 +1100,21 @@ proc \fIreadString\fR {channel} {
     return [encoding convertfrom utf-8 $data]
 }
 .CE
+.PP
+This converts the contents of a file (named in the variable \fIfilename\fR) to
+base64 and prints them:
+.PP
+.CS
+set f [open $filename rb]
+set data [read $f]
+close $f
+puts [\fBbinary encode\fR base64 -maxlen 64 $data]
+.CE
 .SH "SEE ALSO"
-format(n), scan(n), tclvars(n)
+encoding(n), format(n), scan(n), string(n), tcl_platform(n)
 .SH KEYWORDS
 binary, format, scan
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/break.n b/doc/break.n
index e364204..78fd005 100644
--- a/doc/break.n
+++ b/doc/break.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH break n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,12 +14,11 @@ break \- Abort looping command
 .SH SYNOPSIS
 \fBbreak\fR
 .BE
-
 .SH DESCRIPTION
 .PP
 This command is typically invoked inside the body of a looping command
 such as \fBfor\fR or \fBforeach\fR or \fBwhile\fR.
-It returns a \fBTCL_BREAK\fR code, which causes a break exception
+It returns a 3 (\fBTCL_BREAK\fR) result code, which causes a break exception
 to occur.
 The exception causes the current script to be aborted
 out to the innermost containing loop command, which then
@@ -28,18 +27,21 @@ Break exceptions are also handled in a few other situations, such
 as the \fBcatch\fR command, Tk event bindings, and the outermost
 scripts of procedure bodies.
 .SH EXAMPLE
+.PP
 Print a line for each of the integers from 0 to 5:
+.PP
 .CS
 for {set x 0} {$x<10} {incr x} {
-   if {$x > 5} {
-      \fBbreak\fR
-   }
-   puts "x is $x"
+    if {$x > 5} {
+        \fBbreak\fR
+    }
+    puts "x is $x"
 }
 .CE
-
 .SH "SEE ALSO"
 catch(n), continue(n), for(n), foreach(n), return(n), while(n)
-
 .SH KEYWORDS
 abort, break, loop
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/callback.n b/doc/callback.n
new file mode 100644
index 0000000..c96b23b
--- /dev/null
+++ b/doc/callback.n
@@ -0,0 +1,88 @@
+'\"
+'\" Copyright (c) 2018 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH callback n 0.3 TclOO "TclOO Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+callback, mymethod \- generate callbacks to methods
+.SH SYNOPSIS
+.nf
+package require tcl::oo
+
+\fBcallback\fI methodName\fR ?\fIarg ...\fR?
+\fBmymethod\fI methodName\fR ?\fIarg ...\fR?
+.fi
+.BE
+.SH DESCRIPTION
+The \fBcallback\fR command,
+'\" Based on notes in the tcllib docs, we know the provenance of mymethod
+also called \fBmymethod\fR for compatibility with the ooutil and snit packages
+of Tcllib,
+and which should only be used from within the context of a call to a method
+(i.e. inside a method, constructor or destructor body) is used to generate a
+script fragment that will invoke the method, \fImethodName\fR, on the current
+object (as reported by \fBself\fR) when executed. Any additional arguments
+provided will be provided as leading arguments to the callback. The resulting
+script fragment shall be a proper list.
+.PP
+Note that it is up to the caller to ensure that the current object is able to
+handle the call of \fImethodName\fR; this command does not check that.
+\fImethodName\fR may refer to any exported or unexported method, but may not
+refer to a private method as those can only be invoked directly from within
+methods. If there is no such method present at the point when the callback is
+invoked, the standard \fBunknown\fR method handler will be called.
+.SH EXAMPLE
+This is a simple echo server class. The \fBcallback\fR command is used in two
+places, to arrange for the incoming socket connections to be handled by the
+\fIAccept\fR method, and to arrange for the incoming bytes on those
+connections to be handled by the \fIReceive\fR method.
+.PP
+.CS
+oo::class create EchoServer {
+    variable server clients
+    constructor {port} {
+        set server [socket -server [\fBcallback\fR Accept] $port]
+        set clients {}
+    }
+    destructor {
+        chan close $server
+        foreach client [dict keys $clients] {
+            chan close $client
+        }
+    }
+
+    method Accept {channel clientAddress clientPort} {
+        dict set clients $channel [dict create \e
+                address $clientAddress port $clientPort]
+        chan event $channel readable [\fBcallback\fR Receive $channel]
+    }
+    method Receive {channel} {
+        if {[chan gets $channel line] >= 0} {
+            my echo $channel $line
+        } else {
+            chan close $channel
+            dict unset clients $channel
+        }
+    }
+
+    method echo {channel line} {
+        dict with clients $channel {
+            chan puts $channel \e
+                    [format {[%s:%d] %s} $address $port $line]
+        }
+    }
+}
+.CE
+.SH "SEE ALSO"
+chan(n), fileevent(n), my(n), self(n), socket(n), trace(n)
+.SH KEYWORDS
+callback, object
+.\" Local Variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/case.n b/doc/case.n
deleted file mode 100644
index 54d5bf4..0000000
--- a/doc/case.n
+++ /dev/null
@@ -1,60 +0,0 @@
-'\"
-'\" Copyright (c) 1993 The Regents of the University of California.
-'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
-'\"
-'\" See the file "license.terms" for information on usage and redistribution
-'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-.TH case n 7.0 Tcl "Tcl Built-In Commands"
-.so man.macros
-.BS
-'\" Note:  do not modify the .SH NAME line immediately below!
-.SH NAME
-case \- Evaluate one of several scripts, depending on a given value
-.SH SYNOPSIS
-\fBcase\fI string \fR?\fBin\fR? \fIpatList body \fR?\fIpatList body \fR...?
-.sp
-\fBcase\fI string \fR?\fBin\fR? {\fIpatList body \fR?\fIpatList body \fR...?}
-.BE
-
-.SH DESCRIPTION
-.PP
-\fINote: the \fBcase\fI command is obsolete and is supported only
-for backward compatibility.  At some point in the future it may be
-removed entirely.  You should use the \fBswitch\fI command instead.\fR
-.PP
-The \fBcase\fR command matches \fIstring\fR against each of
-the \fIpatList\fR arguments in order.
-Each \fIpatList\fR argument is a list of one or
-more patterns.  If any of these patterns matches \fIstring\fR then
-\fBcase\fR evaluates the following \fIbody\fR argument
-by passing it recursively to the Tcl interpreter and returns the result
-of that evaluation.
-Each \fIpatList\fR argument consists of a single
-pattern or list of patterns.  Each pattern may contain any of the wild-cards
-described under \fBstring match\fR.  If a \fIpatList\fR
-argument is \fBdefault\fR, the corresponding body will be evaluated
-if no \fIpatList\fR matches \fIstring\fR.  If no \fIpatList\fR argument
-matches \fIstring\fR and no default is given, then the \fBcase\fR
-command returns an empty string.
-.PP
-Two syntaxes are provided for the \fIpatList\fR and \fIbody\fR arguments.
-The first uses a separate argument for each of the patterns and commands;
-this form is convenient if substitutions are desired on some of the
-patterns or commands.
-The second form places all of the patterns and commands together into
-a single argument; the argument must have proper list structure, with
-the elements of the list being the patterns and commands.
-The second form makes it easy to construct multi-line case commands,
-since the braces around the whole list make it unnecessary to include a
-backslash at the end of each line.
-Since the \fIpatList\fR arguments are in braces in the second form,
-no command or variable substitutions are performed on them;  this makes
-the behavior of the second form different than the first form in some
-cases.
-
-.SH "SEE ALSO"
-switch(n)
-
-.SH KEYWORDS
-case, match, regular expression
diff --git a/doc/catch.n b/doc/catch.n
index ada0fe7..0a2c513 100644
--- a/doc/catch.n
+++ b/doc/catch.n
@@ -5,7 +5,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH catch n "8.5" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -15,12 +15,11 @@ catch \- Evaluate script and trap exceptional returns
 .SH SYNOPSIS
 \fBcatch\fI script \fR?\fIresultVarName\fR? ?\fIoptionsVarName\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 The \fBcatch\fR command may be used to prevent errors from aborting command
-interpretation.  The \fBcatch\fR command calls the Tcl interpreter recursively to
-execute \fIscript\fR, and always returns without raising an error,
+interpretation.  The \fBcatch\fR command calls the Tcl interpreter recursively
+to execute \fIscript\fR, and always returns without raising an error,
 regardless of any errors that might occur while executing \fIscript\fR.
 .PP
 If \fIscript\fR raises an error, \fBcatch\fR will return a non-zero integer
@@ -31,21 +30,22 @@ return codes: 1 (\fBTCL_ERROR\fR), 2 (\fBTCL_RETURN\fR), 3 (\fBTCL_BREAK\fR),
 and 4 (\fBTCL_CONTINUE\fR).  Errors during evaluation of a script are indicated
 by a return code of \fBTCL_ERROR\fR.  The other exceptional return codes are
 returned by the \fBreturn\fR, \fBbreak\fR, and \fBcontinue\fR commands
-and in other special situations as documented.  Tcl packages can define
-new commands that return other integer values as return codes as well,
-and scripts that make use of the \fBreturn -code\fR command can also
-have return codes other than the five defined by Tcl.
+and in other special situations as documented.
+New commands defined by Tcl packages as well as scripts that make
+use of the \fBreturn \-code\fR  command can return other integer
+values as the return code. These must however lie outside the range
+reserved for Tcl as documented for the \fBreturn\fR command.
+
 .PP
 If the \fIresultVarName\fR argument is given, then the variable it names is
-set to the result of the script evaluation.  When the return code from
-the script is 1 (\fBTCL_ERROR\fR), the value stored in \fIresultVarName\fR is an error
-message.  When the return code from the script is 0 (\fBTCL_OK\fR), the value
-stored in \fIresultVarName\fR is the value returned from \fIscript\fR.
+set to the result of the script evaluation.  When the return code from the
+script is 1 (\fBTCL_ERROR\fR), the value stored in \fIresultVarName\fR is an
+error message.  When the return code from the script is 0 (\fBTCL_OK\fR), the
+value stored in \fIresultVarName\fR is the value returned from \fIscript\fR.
 .PP
-.VS 8.5
 If the \fIoptionsVarName\fR argument is given, then the variable it
 names is set to a dictionary of return options returned by evaluation
-of \fIscript\fR.  Tcl specifies two entries that are always 
+of \fIscript\fR.  Tcl specifies two entries that are always
 defined in the dictionary: \fB\-code\fR and \fB\-level\fR.  When
 the return code from evaluation of \fIscript\fR is not \fBTCL_RETURN\fR,
 the value of the \fB\-level\fR entry will be 0, and the value
@@ -54,31 +54,53 @@ Only when the return code is \fBTCL_RETURN\fR will the values of
 the \fB\-level\fR and \fB\-code\fR entries be something else, as
 further described in the documentation for the \fBreturn\fR command.
 .PP
-When the return code from evaluation of \fIscript\fR is \fBTCL_ERROR\fR,
-three additional entries are defined in the dictionary of return options
-stored in \fIoptionsVarName\fR: \fB\-errorinfo\fR, \fB\-errorcode\fR, 
-and \fB\-errorline\fR.  The value of the \fB\-errorinfo\fR entry
-is a formatted stack trace containing more information about
-the context in which the error happened.  The formatted stack
-trace is meant to be read by a person.  The value of
-the \fB\-errorcode\fR entry is additional information about the
-error stored as a list.  The \fB\-errorcode\fR value is meant to
-be further processed by programs, and may not be particularly
-readable by people.  The value of the \fB\-errorline\fR entry
-is an integer indicating which line of \fIscript\fR was being
-evaluated when the error occurred.  The values of the \fB\-errorinfo\fR
-and \fB\-errorcode\fR entries of the most recent error are also
-available as values of the global variables \fB::errorInfo\fR
-and \fB::errorCode\fR respectively.
+When the return code from evaluation of \fIscript\fR is
+\fBTCL_ERROR\fR, four additional entries are defined in the dictionary
+of return options stored in \fIoptionsVarName\fR: \fB\-errorinfo\fR,
+\fB\-errorcode\fR, \fB\-errorline\fR, and
+\fB\-errorstack\fR.
+The value of the \fB\-errorinfo\fR entry is a formatted stack trace containing
+more information about the context in which the error happened.  The formatted
+stack trace is meant to be read by a person.  The value of the
+\fB\-errorcode\fR entry is additional information about the error stored as a
+list.  The \fB\-errorcode\fR value is meant to be further processed by
+programs, and may not be particularly readable by people.  The value of the
+\fB\-errorline\fR entry is an integer indicating which line of \fIscript\fR
+was being evaluated when the error occurred.
+The value of the \fB\-errorstack\fR entry is an
+even-sized list made of token-parameter pairs accumulated while
+unwinding the stack. The token may be
+.QW \fBCALL\fR ,
+in which case the parameter is a list made of the proc name and arguments at
+the corresponding level; or it may be
+.QW \fBUP\fR ,
+in which case the parameter is
+the relative level (as in \fBuplevel\fR) of the previous \fBCALL\fR. The
+salient differences with respect to \fB\-errorinfo\fR are that:
+.IP [1]
+it is a machine-readable form that is amenable to processing with
+[\fBforeach\fR {tok prm} ...],
+.IP [2]
+it contains the true (substituted) values passed to the functions, instead of
+the static text of the calling sites, and
+.IP [3]
+it is coarser-grained, with only one element per stack frame (like procs; no
+separate elements for \fBforeach\fR constructs for example).
+.PP
+The values of the \fB\-errorinfo\fR and \fB\-errorcode\fR entries of
+the most recent error are also available as values of the global
+variables \fB::errorInfo\fR and \fB::errorCode\fR respectively.
+The value of the \fB\-errorstack\fR entry surfaces as \fBinfo errorstack\fR.
 .PP
 Tcl packages may provide commands that set other entries in the
 dictionary of return options, and the \fBreturn\fR command may be
 used by scripts to set return options in addition to those defined
 above.
-.VE 8.5
 .SH EXAMPLES
+.PP
 The \fBcatch\fR command may be used in an \fBif\fR to branch based on
 the success of a script.
+.PP
 .CS
 if { [\fBcatch\fR {open $someFile w} fid] } {
     puts stderr "Could not open $someFile for writing\en$fid"
@@ -88,9 +110,12 @@ if { [\fBcatch\fR {open $someFile w} fid] } {
 .PP
 There are more complex examples of \fBcatch\fR usage in the
 documentation for the \fBreturn\fR command.
-
-.SH "SEE ALSO" 
-break(n), continue(n), dict(n), error(n), return(n), tclvars(n)
-
+.SH "SEE ALSO"
+break(n), continue(n), dict(n), error(n), errorCode(n), errorInfo(n), info(n),
+return(n)
 .SH KEYWORDS
-catch, error
+catch, error, exception
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/cd.n b/doc/cd.n
index d6b0aa0..b750807 100644
--- a/doc/cd.n
+++ b/doc/cd.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH cd n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,30 +14,35 @@ cd \- Change working directory
 .SH SYNOPSIS
 \fBcd \fR?\fIdirName\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 Change the current working directory to \fIdirName\fR, or to the
 home directory (as specified in the HOME environment variable) if
 \fIdirName\fR is not given.
 Returns an empty string.
+.PP
 Note that the current working directory is a per-process resource; the
 \fBcd\fR command changes the working directory for all interpreters
-and (in a threaded environment) all threads.
+and all threads.
 .SH EXAMPLES
+.PP
 Change to the home directory of the user \fBfred\fR:
+.PP
 .CS
-\fBcd\fR ~fred
+\fBcd\fR [file home fred]
 .CE
 .PP
 Change to the directory \fBlib\fR that is a sibling directory of the
 current one:
+.PP
 .CS
 \fBcd\fR ../lib
 .CE
-
 .SH "SEE ALSO"
 filename(n), glob(n), pwd(n)
-
 .SH KEYWORDS
 working directory
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/chan.n b/doc/chan.n
index e8356e2..730c80a 100644
--- a/doc/chan.n
+++ b/doc/chan.n
@@ -1,4 +1,4 @@
-'\" 
+'\"
 '\" Copyright (c) 2005-2006 Donal K. Fellows
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
@@ -21,45 +21,60 @@ channels \fBstdin\fR, \fBstdout\fR or \fBstderr\fR which correspond to
 the process's standard input, output and error streams respectively).
 \fIOption\fR indicates what to do with the channel; any unique
 abbreviation for \fIoption\fR is acceptable. Valid options are:
+.\" METHOD: blocked
 .TP
-\fBchan blocked \fIchannelId\fR
+\fBchan blocked \fIchannel\fR
 .
 This tests whether the last input operation on the channel called
-\fIchannelId\fR failed because it would have otherwise caused the
+\fIchannel\fR failed because it would have otherwise caused the
 process to block, and returns 1 if that was the case. It returns 0
 otherwise. Note that this only ever returns 1 when the channel has
 been configured to be non-blocking; all Tcl channels have blocking
 turned on by default.
+.\" METHOD: close
 .TP
-\fBchan close \fIchannelId\fR
+\fBchan close \fIchannel\fR ?\fIdirection\fR?
 .
-Close and destroy the channel called \fIchannelId\fR. Note that this
+Close and destroy the channel called \fIchannel\fR. Note that this
 deletes all existing file-events registered on the channel.
+If the \fIdirection\fR argument (which must be \fBread\fR or \fBwrite\fR or
+any unique abbreviation of them) is present, the channel will only be
+half-closed, so that it can go from being read-write to write-only or
+read-only respectively. If a read-only channel is closed for reading, it is
+the same as if the channel is fully closed, and respectively similar for
+write-only channels. Without the \fIdirection\fR argument, the channel is
+closed for both reading and writing (but only if those directions are
+currently open). It is an error to close a read-only channel for writing, or a
+write-only channel for reading.
 .RS
 .PP
 As part of closing the channel, all buffered output is flushed to the
-channel's output device, any buffered input is discarded, the
-underlying operating system resource is closed and \fIchannelId\fR
-becomes unavailable for future use.
+channel's output device (only if the channel is ceasing to be writable), any
+buffered input is discarded (only if the channel is ceasing to be readable),
+the underlying operating system resource is closed and \fIchannel\fR becomes
+unavailable for future use (both only if the channel is being completely
+closed).
 .PP
-If the channel is blocking, the command does not return until all
-output is flushed.  If the channel is nonblocking and there is
-unflushed output, the channel remains open and the command returns
-immediately; output will be flushed in the background and the channel
-will be closed when all the flushing is complete.
+If the channel is blocking and the channel is ceasing to be writable, the
+command does not return until all output is flushed.  If the channel is
+non-blocking and there is unflushed output, the channel remains open and the
+command returns immediately; output will be flushed in the background and the
+channel will be closed when all the flushing is complete.
 .PP
-If \fIchannelId\fR is a blocking channel for a command pipeline then
+If \fIchannel\fR is a blocking channel for a command pipeline then
 \fBchan close\fR waits for the child processes to complete.
 .PP
 If the channel is shared between interpreters, then \fBchan close\fR
-makes \fIchannelId\fR unavailable in the invoking interpreter but has
+makes \fIchannel\fR unavailable in the invoking interpreter but has
 no other effect until all of the sharing interpreters have closed the
 channel. When the last interpreter in which the channel is registered
 invokes \fBchan close\fR (or \fBclose\fR), the cleanup actions
-described above occur. See the \fBinterp\fR command for a description
-of channel sharing.
+described above occur. With half-closing, the half-close of the channel only
+applies to the current interpreter's view of the channel until all channels
+have closed it in that direction (or completely).
+See the \fBinterp\fR command for a description of channel sharing.
 .PP
-Channels are automatically closed when an interpreter is destroyed and
+Channels are automatically fully closed when an interpreter is destroyed and
 when the process exits.  Channels are switched to blocking mode, to
 ensure that all output is correctly flushed before the process exits.
 .PP
@@ -67,12 +82,27 @@ The command returns an empty string, and may generate an error if
 an error occurs while flushing output.  If a command in a command
 pipeline created with \fBopen\fR returns an error, \fBchan close\fR
 generates an error (similar to the \fBexec\fR command.)
+.PP
+Note that half-closes of sockets and command pipelines can have important side
+effects because they result in a shutdown() or close() of the underlying
+system resource, which can change how other processes or systems respond to
+the Tcl program.
+.PP
+Channels are automatically closed when an interpreter is destroyed and
+when the process exits.
+Nonblocking channels are not switched to
+blocking mode when exiting; this guarantees a timely exit even when the
+peer or a communication channel is stalled. To ensure proper flushing of
+stalled nonblocking channels on exit, one must either (a) actively
+switch them back to blocking or (b) use the environment variable
+\fBTCL_FLUSH_NONBLOCKING_ON_EXIT\fR.
 .RE
+.\" METHOD: configure
 .TP
-\fBchan configure \fIchannelId\fR ?\fIoptionName\fR? ?\fIvalue\fR? ?\fIoptionName value\fR?...
+\fBchan configure \fIchannel\fR ?\fIoptionName\fR? ?\fIvalue\fR? ?\fIoptionName value\fR?...
 .
 Query or set the configuration options of the channel named
-\fIchannelId\fR.
+\fIchannel\fR.
 .RS
 .PP
 If no \fIoptionName\fR or \fIvalue\fR arguments are supplied, the
@@ -85,25 +115,29 @@ the command sets each of the named options to the corresponding
 .PP
 The options described below are supported for all channels. In
 addition, each channel type may add options that only it supports. See
-the manual entry for the command that creates each type of channels
-for the options that that specific type of channel supports. For
-example, see the manual entry for the \fBsocket\fR command for its
-additional options.
+the manual entry for the command that creates each type of channel
+for the options supported by that specific type of channel. For
+example, see the manual entry for the \fBsocket\fR command for additional
+options for sockets, and the \fBopen\fR command for additional options for
+serial devices.
+.RE
+.\" OPTION: -blocking
 .TP
-\fB\-blocking\fR \fIboolean\fR
+\fB\-blocking\fI boolean\fR
 .
 The \fB\-blocking\fR option determines whether I/O operations on the
 channel can cause the process to block indefinitely.  The value of the
 option must be a proper boolean value.  Channels are normally in
-blocking mode; if a channel is placed into nonblocking mode it will
+blocking mode; if a channel is placed into non-blocking mode it will
 affect the operation of the \fBchan gets\fR, \fBchan read\fR, \fBchan
 puts\fR, \fBchan flush\fR, and \fBchan close\fR commands; see the
-documentation for those commands for details.  For nonblocking mode to
+documentation for those commands for details.  For non-blocking mode to
 work correctly, the application must be using the Tcl event loop
 (e.g. by calling \fBTcl_DoOneEvent\fR or invoking the \fBvwait\fR
 command).
+.\" OPTION: -buffering
 .TP
-\fB\-buffering\fR \fInewValue\fR
+\fB\-buffering\fI newValue\fR
 .
 If \fInewValue\fR is \fBfull\fR then the I/O system will buffer output
 until its internal buffer is full or until the \fBchan flush\fR
@@ -116,19 +150,21 @@ channels that connect to terminal-like devices; for these channels the
 initial setting is \fBline\fR.  Additionally, \fBstdin\fR and
 \fBstdout\fR are initially set to \fBline\fR, and \fBstderr\fR is set
 to \fBnone\fR.
+.\" OPTION: -buffersize
 .TP
-\fB\-buffersize\fR \fInewSize\fR
+\fB\-buffersize\fI newSize\fR
 .
-\fINewvalue\fR must be an integer; its value is used to set the size
+\fInewSize\fR must be an integer; its value is used to set the size
 of buffers, in bytes, subsequently allocated for this channel to store
-input or output. \fINewvalue\fR must be a number of no more than one
+input or output. \fInewSize\fR must be a number of no more than one
 million, allowing buffers of up to one million bytes in size.
+.\" OPTION: -encoding
 .TP
 \fB\-encoding\fR \fIname\fR
 .
 This option is used to specify the encoding of the channel as one of
-the named encodings returned by \fBencoding names\fR or the special
-value \fBbinary\fR, so that the data can be converted to and from
+the named encodings returned by \fBencoding names\fR, so that the
+data can be converted to and from
 Unicode for use in Tcl.  For instance, in order for Tcl to read
 characters from a Japanese file in \fBshiftjis\fR and properly process
 and display the contents, the encoding would be set to \fBshiftjis\fR.
@@ -139,7 +175,7 @@ automatically be converted to the specified encoding on output.
 .RS
 .PP
 If a file contains pure binary data (for instance, a JPEG image), the
-encoding for the channel should be configured to be \fBbinary\fR.  Tcl
+encoding for the channel should be configured to be \fBiso8859-1\fR.  Tcl
 will then assign no interpretation to the data in the file and simply
 read or write raw bytes.  The Tcl \fBbinary\fR command can be used to
 manipulate this byte-oriented data.  It is usually better to set the
@@ -151,33 +187,33 @@ The default encoding for newly opened channels is the same platform-
 and locale-dependent system encoding used for interfacing with the
 operating system, as returned by \fBencoding system\fR.
 .RE
+.\" OPTION: -eofchar
 .TP
-\fB\-eofchar\fR \fIchar\fR
-.TP
-\fB\-eofchar\fR \fB{\fIinChar outChar\fB}\fR
+\fB\-eofchar\fI char\fR
 .
-This option supports DOS file systems that use Control-z (\ex1a) as an
+This option supports DOS file systems that use Control-z (\ex1A) as an
 end of file marker.  If \fIchar\fR is not an empty string, then this
 character signals end-of-file when it is encountered during input.
-For output, the end-of-file character is output when the channel is
-closed.  If \fIchar\fR is the empty string, then there is no special
-end of file character marker.  For read-write channels, a two-element
-list specifies the end of file marker for input and output,
-respectively.  As a convenience, when setting the end-of-file
-character for a read-write channel you can specify a single value that
-will apply to both reading and writing.  When querying the end-of-file
-character of a read-write channel, a two-element list will always be
-returned.  The default value for \fB\-eofchar\fR is the empty string
-in all cases except for files under Windows.  In that case the
-\fB\-eofchar\fR is Control-z (\ex1a) for reading and the empty string
-for writing.
+Otherwise (the default) there is no special end of file character marker.
 The acceptable range for \fB\-eofchar\fR values is \ex01 - \ex7f;
 attempting to set \fB\-eofchar\fR to a value outside of this range will
 generate an error.
+.VS TIP656
+.\" OPTION: -profile
 .TP
-\fB\-translation\fR \fImode\fR
+\fB\-profile\fI profile\fR
+.
+Specifies the encoding profile to be used on the channel. The encoding
+transforms in use for the channel's input and output will then be subject to the
+rules of that profile. Any failures will result in a channel error. See
+\fBPROFILES\fR in the \fBencoding(n)\fR documentation for details about encoding
+profiles.
+.VE TIP656
+.\" OPTION: -translation
 .TP
-\fB\-translation\fR \fB{\fIinMode outMode\fB}\fR 
+\fB\-translation\fI translation\fR
+.TP
+\fB\-translation\fR \fB{\fIinTranslation outTranslation\fB}\fR
 .
 In Tcl scripts the end of a line is always represented using a single
 newline character (\en).  However, in actual files and devices the end
@@ -203,9 +239,7 @@ you can specify a single value that will apply to both reading and
 writing.  When querying the translation mode of a read-write channel, a
 two-element list will always be returned.  The following values are
 currently supported:
-.TP
-\fBauto\fR
-.
+.IP \fBauto\fR
 As the input translation mode, \fBauto\fR treats any of newline
 (\fBlf\fR), carriage return (\fBcr\fR), or carriage return followed by
 a newline (\fBcrlf\fR) as the end of line representation.  The end of
@@ -216,26 +250,24 @@ all platforms Tcl chooses \fBcrlf\fR, for all Unix flavors, it chooses
 \fBlf\fR, and for the various flavors of Windows it chooses
 \fBcrlf\fR.  The default setting for \fB\-translation\fR is \fBauto\fR
 for both input and output.
-.TP
-\fBbinary\fR 
-.
-No end-of-line translations are performed.  This is nearly identical
-to \fBlf\fR mode, except that in addition \fBbinary\fR mode also sets
-the end-of-file character to the empty string (which disables it) and
-sets the encoding to \fBbinary\fR (which disables encoding filtering).
-See the description of \fB\-eofchar\fR and \fB\-encoding\fR for more
-information.
-.TP
-\fBcr\fR
-.
+.IP \fBbinary\fR
+Like \fBlf\fR, no end-of-line translation is performed, but in addition, sets
+\fB\-eofchar\fR to the empty string to disable it, and sets \fB\-encoding\fR
+to \fBiso8859-1\fR.  With this one setting, a channel is fully configured
+for binary input and output:  Each byte read from the channel
+becomes the Unicode character having the same value as that byte, and each
+character written to the channel becomes a single byte in the output.  This
+makes it possible to work seamlessly with binary data as long as each character
+in the data remains in the range of 0 to 255 so that there is no distinction
+between binary data and text.  For example, A JPEG image can be read from a
+such a channel, manipulated, and then written back to such a channel.
+.IP \fBcr\fR
 The end of a line in the underlying file or device is represented by a
 single carriage return character.  As the input translation mode,
 \fBcr\fR mode converts carriage returns to newline characters.  As the
 output translation mode, \fBcr\fR mode translates newline characters
 to carriage returns.
-.TP
-\fBcrlf\fR
-.
+.IP \fBcrlf\fR
 The end of a line in the underlying file or device is represented by a
 carriage return character followed by a linefeed character.  As the
 input translation mode, \fBcrlf\fR mode converts
@@ -243,84 +275,52 @@ carriage-return-linefeed sequences to newline characters.  As the
 output translation mode, \fBcrlf\fR mode translates newline characters
 to carriage-return-linefeed sequences.  This mode is typically used on
 Windows platforms and for network connections.
-.TP
-\fBlf\fR
-.
+.IP \fBlf\fR
 The end of a line in the underlying file or device is represented by a
 single newline (linefeed) character.  In this mode no translations
 occur during either input or output.  This mode is typically used on
 UNIX platforms.
 .RE
-.RE
+.\" METHOD: copy
 .TP
 \fBchan copy \fIinputChan outputChan\fR ?\fB\-size \fIsize\fR? ?\fB\-command \fIcallback\fR?
 .
-Copy data from the channel \fIinputChan\fR, which must have been
-opened for reading, to the channel \fIoutputChan\fR, which must have
-been opened for writing. The \fBchan copy\fR command leverages the
-buffering in the Tcl I/O system to avoid extra copies and to avoid
-buffering too much data in main memory when copying large files to
-slow destinations like network sockets.
+Reads characters from \fIinputChan\fR and writes them to \fIoutputChan\fR until
+all characters are copied, blocking until the copy is complete and returning
+the number of characters copied.  Leverages internal buffers to avoid extra
+copies and to avoid buffering too much data in main memory when copying large
+files to slow destinations like network sockets.
 .RS
 .PP
-The \fBchan copy\fR command transfers data from \fIinputChan\fR until
-end of file or \fIsize\fR bytes have been transferred. If no
-\fB\-size\fR argument is given, then the copy goes until end of file.
-All the data read from \fIinputChan\fR is copied to \fIoutputChan\fR.
-Without the \fB\-command\fR option, \fBchan copy\fR blocks until the
-copy is complete and returns the number of bytes written to
-\fIoutputChan\fR.
-.PP
-The \fB\-command\fR argument makes \fBchan copy\fR work in the
-background.  In this case it returns immediately and the
-\fIcallback\fR is invoked later when the copy completes.  The
-\fIcallback\fR is called with one or two additional arguments that
-indicates how many bytes were written to \fIoutputChan\fR.  If an
-error occurred during the background copy, the second argument is the
-error string associated with the error.  With a background copy, it is
-not necessary to put \fIinputChan\fR or \fIoutputChan\fR into
-non-blocking mode; the \fBchan copy\fR command takes care of that
-automatically.  However, it is necessary to enter the event loop by
-using the \fBvwait\fR command or by using Tk.
-.PP
-You are not allowed to do other I/O operations with \fIinputChan\fR or
-\fIoutputChan\fR during a background \fBchan copy\fR.  If either
-\fIinputChan\fR or \fIoutputChan\fR get closed while the copy is in
-progress, the current copy is stopped and the command callback is
-\fInot\fR made.  If \fIinputChan\fR is closed, then all data already
-queued for \fIoutputChan\fR is written out.
-.PP
-Note that \fIinputChan\fR can become readable during a background
-copy.  You should turn off any \fBchan event\fR or \fBfileevent\fR
-handlers during a background copy so those handlers do not interfere
-with the copy.  Any I/O attempted by a \fBchan event\fR or
-\fBfileevent\fR handler will get a
+\fB\-size\fR limits the number of characters copied.
+.PP
+If \fB\-command\fR is given, \fBchan copy\fR returns immediately, works in the
+background, and calls \fIcallback\fR when the copy completes, providing as an
+additional argument the number of characters written to \fIoutputChan\fR.  If
+an error occurs during the background copy, another argument provides message
+for the error.  \fIinputChan\fR and \fIoutputChan\fR are automatically
+configured for non-blocking mode if needed.  Background copying only works
+correctly if events are being processed, e.g. via \fBvwait\fR or Tk.
+.PP
+During a background copy no other read operation may be performed on
+\fIinputChan\fR, and no write operation may be performed on
+\fIoutputChan\fR.  However, write operations may by performed on
+\fIinputChan\fR and read operations may be performed on \fIoutputChan\fR, as
+exhibited by the bidirectional copy example below.
+.PP
+If either \fIinputChan\fR or \fIoutputChan\fR is closed while the copy is in
+progress, copying ceases and \fBno\fR callback is made.  If \fIinputChan\fR is
+closed all data already queued is written to \fIoutputChan\fR.
+.PP
+There should be no event handler established for \fIinputChan\fR  because it
+may become readable during a background copy.  An attempt to read or write from
+within an event handler results result in the error,  "channel busy".  Any
+wrong-sided I/O attempted (by a \fBchan event\fR handler or otherwise) results
+in a
 .QW "channel busy"
 error.
-.PP
-\fBChan copy\fR translates end-of-line sequences in \fIinputChan\fR
-and \fIoutputChan\fR according to the \fB\-translation\fR option for
-these channels (see \fBchan configure\fR above).  The translations
-mean that the number of bytes read from \fIinputChan\fR can be
-different than the number of bytes written to \fIoutputChan\fR.  Only
-the number of bytes written to \fIoutputChan\fR is reported, either as
-the return value of a synchronous \fBchan copy\fR or as the argument
-to the callback for an asynchronous \fBchan copy\fR.
-.PP
-\fBChan copy\fR obeys the encodings and character translations
-configured for the channels. This means that the incoming characters
-are converted internally first UTF-8 and then into the encoding of the
-channel \fBchan copy\fR writes to (see \fBchan configure\fR above for
-details on the \fB\-encoding\fR and \fB\-translation\fR options). No
-conversion is done if both channels are set to encoding \fBbinary\fR
-and have matching translations. If only the output channel is set to
-encoding \fBbinary\fR the system will write the internal UTF-8
-representation of the incoming characters. If only the input channel
-is set to encoding \fBbinary\fR the system will assume that the
-incoming bytes are valid UTF-8 characters and convert them according
-to the output encoding. The behaviour of the system for bytes which
-are not valid UTF-8 characters is undefined in this case.
 .RE
+.\" METHOD: create
 .TP
 \fBchan create \fImode cmdPrefix\fR
 .
@@ -328,7 +328,7 @@ This subcommand creates a new script level channel using the command
 prefix \fIcmdPrefix\fR as its handler. Any such channel is called a
 \fBreflected\fR channel. The specified command prefix, \fBcmdPrefix\fR,
 must be a non-empty list, and should provide the API described in the
-\fBreflectedchan\fR manual page. The handle of the new channel is
+\fBrefchan\fR manual page. The handle of the new channel is
 returned as the result of the \fBchan create\fR command, and the
 channel is open. Use either \fBclose\fR or \fBchan close\fR to remove
 the channel.
@@ -339,7 +339,7 @@ reading, writing, or both. It has to be a list containing any of the
 strings
 .QW \fBread\fR
 or
-.QW \fBwrite\fR .
+.QW \fBwrite\fR ,
 The list must have at least one
 element, as a channel you can neither write to nor read from makes no
 sense. The handler command for the new channel must support the chosen
@@ -347,7 +347,7 @@ mode, or an error is thrown.
 .PP
 The command prefix is executed in the global namespace, at the top of
 call stack, following the appending of arguments as described in the
-\fBreflectedchan\fR manual page. Command resolution happens at the
+\fBrefchan\fR manual page. Command resolution happens at the
 time of the call. Renaming the command, or destroying it means that
 the next call of a handler method may fail, causing the channel
 command invoking the handler to fail as well. Depending on the
@@ -376,7 +376,7 @@ commands.
 When a thread or interpreter is deleted, all channels created with
 this subcommand and using this thread/interpreter as their computing
 base are deleted as well, in all interpreters they have been shared
-with or moved into, and in whatever thread they have been transfered
+with or moved into, and in whatever thread they have been transferred
 to. While this pulls the rug out under the other thread(s) and/or
 interpreter(s), this cannot be avoided. Trying to use such a channel
 will cause the generation of a regular error about unknown channel
@@ -387,18 +387,20 @@ interpreters.  While it arranges for the execution of arbitrary Tcl
 code the system also makes sure that the code is always executed
 within the safe interpreter.
 .RE
+.\" METHOD: eof
 .TP
-\fBchan eof \fIchannelId\fR
+\fBchan eof \fIchannel\fR
 .
 Test whether the last input operation on the channel called
-\fIchannelId\fR failed because the end of the data stream was reached,
+\fIchannel\fR failed because the end of the data stream was reached,
 returning 1 if end-of-file was reached, and 0 otherwise.
+.\" METHOD: event
 .TP
-\fBchan event \fIchannelId event\fR ?\fIscript\fR?
+\fBchan event \fIchannel event\fR ?\fIscript\fR?
 .
 Arrange for the Tcl script \fIscript\fR to be installed as a \fIfile
 event handler\fR to be called whenever the channel called
-\fIchannelId\fR enters the state described by \fIevent\fR (which must
+\fIchannel\fR enters the state described by \fIevent\fR (which must
 be either \fBreadable\fR or \fBwritable\fR); only one such handler may
 be installed per event per channel at a time.  If \fIscript\fR is the
 empty string, the current handler is deleted (this also happens if the
@@ -419,7 +421,8 @@ while waiting for the data to arrive.  If an application invokes
 no input data available, the process will block; until the input data
 arrives, it will not be able to service other events, so it will
 appear to the user to
-.QW "freeze up" .
+.QW "freeze up"
+\&.
 With \fBchan event\fR, the
 process can tell when data is present and only invoke \fBchan gets\fR
 or \fBchan read\fR when they will not block.
@@ -430,7 +433,7 @@ be readable if there is unread data in an input buffer, except in the
 special case where the most recent attempt to read from the channel
 was a \fBchan gets\fR call that could not find a complete line in the
 input buffer.  This feature allows a file to be read a line at a time
-in nonblocking mode using events.  A channel is also considered to be
+in non-blocking mode using events.  A channel is also considered to be
 readable if an end of file or error condition is present on the
 underlying file or device.  It is important for \fIscript\fR to check
 for these conditions and handle them appropriately; for example, if
@@ -445,12 +448,12 @@ Note that client sockets opened in asynchronous mode become writable
 when they become connected or if the connection fails.
 .PP
 Event-driven I/O works best for channels that have been placed into
-nonblocking mode with the \fBchan configure\fR command.  In blocking
+non-blocking mode with the \fBchan configure\fR command.  In blocking
 mode, a \fBchan puts\fR command may block if you give it more data
 than the underlying file or device can accept, and a \fBchan gets\fR
 or \fBchan read\fR command will block if you attempt to read more data
 than is ready; no events will be processed while the commands block.
-In nonblocking mode \fBchan puts\fR, \fBchan read\fR, and \fBchan
+In non-blocking mode \fBchan puts\fR, \fBchan read\fR, and \fBchan
 gets\fR never block.
 .PP
 The script for a file event is executed at global level (outside the
@@ -461,64 +464,134 @@ to report the error.  In addition, the file event handler is deleted
 if it ever returns an error; this is done in order to prevent infinite
 loops due to buggy handlers.
 .RE
+.\" METHOD: flush
 .TP
-\fBchan flush \fIchannelId\fR
+\fBchan flush \fIchannel\fR
 .
-Ensures that all pending output for the channel called \fIchannelId\fR
+Ensures that all pending output for the channel called \fIchannel\fR
 is written.
 .RS
 .PP
 If the channel is in blocking mode the command does not return until
 all the buffered output has been flushed to the channel. If the
-channel is in nonblocking mode, the command may return before all
+channel is in non-blocking mode, the command may return before all
 buffered output has been flushed; the remainder will be flushed in the
 background as fast as the underlying file or device is able to absorb
 it.
 .RE
+.\" METHOD: gets
 .TP
-\fBchan gets \fIchannelId\fR ?\fIvarName\fR?
+\fBchan gets \fIchannel\fR ?\fIvarName\fR?
 .
-Reads the next line from the channel called \fIchannelId\fR. If
-\fIvarName\fR is not specified, the result of the command will be the
-line that has been read (without a trailing newline character) or an
-empty string upon end-of-file or, in non-blocking mode, if the data
-available is exhausted. If \fIvarName\fR is specified, the line that
-has been read will be written to the variable called \fIvarName\fR and
-result will be the number of characters that have been read or -1 if
-end-of-file was reached or, in non-blocking mode, if the data
-available is exhausted.
+Reads a line from the channel consisting of all characters up to the next
+end-of-line sequence or until end of file is seen. The line feed character
+corresponding to end-of-line sequence is not included as part of the line.
+If the \fIvarName\fR argument is specified, the line is stored in the variable
+of that name and the command returns the length of the line. If \fIvarName\fR
+is not specified, the command returns the line itself as the result of the command.
 .RS
 .PP
-If an end-of-file occurs while part way through reading a line, the
-partial line will be returned (or written into \fIvarName\fR). When
-\fIvarName\fR is not specified, the end-of-file case can be
-distinguished from an empty line using the \fBchan eof\fR command, and
-the partial-line-but-nonblocking case can be distinguished with the
-\fBchan blocked\fR command.
+If a complete line is not available and the channel is not at EOF, the command
+will block in the case of a blocking channel. For non-blocking channels, the
+command will return the empty string as the result in the case of \fIvarName\fR
+not specified and -1 if it is.
 .RE
+.RS
+.PP
+If a blocking channel is already at EOF, the command returns an empty string if
+\fIvarName\fR is not specified. Note an empty string result can also be returned
+when a blank line (no characters before the next end of line sequence). The two
+cases can be distinguished by calling the \fBchan eof\fR command to check for
+end of file. If \fIvarName\fR is specified, the command returns -1 on end of file.
+There is no ambiguity in this case because blank lines result in 0 being returned.
+.RE
+.RS
+.PP
+If a non-blocking channel is already at EOF, the command returns an empty line
+if \fIvarName\fR is not specified. This can be distinguished from an empty line
+being returned by either a blank line being read or a full line not being available
+through the use of the \fBchan eof\fR and \fBchan blocked\fR commands. If
+\fBchan eof\fR returns true, the channel is at EOF. If \fBchan blocked\fR returns
+true, a full line was not available. If both commands return false, an empty
+line was read. If \fIvarName\fR was specified for a non-bocking channel at EOF,
+the command returns -1. This can be distinguished from full line not being
+available either by \fBchan eof\fR or \fBchan blocked\fR as above. Note that
+when \fIvarName\fR is specified, there is no need to distinguish between eof
+and blank lines as the latter will result in the command returning 0.
+.PP
+If the encoding profile \fBstrict\fR is in effect for the channel, the command
+will raise an exception with the POSIX error code \fBEILSEQ\fR if any encoding
+errors are encountered in the channel input data. The file pointer remains
+unchanged and it is possible to introspect, and in some cases recover, by
+changing the encoding in use. See \fBENCODING ERROR EXAMPLES\fR later.
+.RE
+.\" METHOD: isbinary
+.TP
+\fBchan isbinary \fIchannel\fR
+.
+Test whether the channel called \fIchannel\fR is a binary channel,
+returning 1 if it is and, and 0 otherwise. A binary channel is
+a channel with iso8859-1 encoding, -eofchar set to {} and
+-translation set to lf.
+.\" METHOD: names
 .TP
 \fBchan names\fR ?\fIpattern\fR?
 .
 Produces a list of all channel names. If \fIpattern\fR is specified,
 only those channel names that match it (according to the rules of
 \fBstring match\fR) will be returned.
+.\" METHOD: pending
 .TP
-\fBchan pending \fImode channelId\fR
+\fBchan pending \fImode channel\fR
 .
 Depending on whether \fImode\fR is \fBinput\fR or \fBoutput\fR,
 returns the number of
-bytes of input or output (respectively) currently buffered 
-internally for \fIchannelId\fR (especially useful in a readable event 
+bytes of input or output (respectively) currently buffered
+internally for \fIchannel\fR (especially useful in a readable event
 callback to impose application-specific limits on input line lengths to avoid
 a potential denial-of-service attack where a hostile user crafts
 an extremely long line that exceeds the available memory to buffer it).
 Returns -1 if the channel was not opened for the mode in question.
+.\" METHOD: pipe
+.TP
+\fBchan pipe\fR
+.
+Creates a standalone pipe whose read- and write-side channels are
+returned as a 2-element list, the first element being the read side and
+the second the write side. Can be useful e.g. to redirect
+separately \fBstderr\fR and \fBstdout\fR from a subprocess. To do
+this, spawn with "2>@" or
+">@" redirection operators onto the write side of a pipe, and then
+immediately close it in the parent. This is necessary to get an EOF on
+the read side once the child has exited or otherwise closed its output.
+.RS
+.PP
+Note that the pipe buffering semantics can vary at the operating system level
+substantially; it is not safe to assume that a write performed on the output
+side of the pipe will appear instantly to the input side. This is a
+fundamental difference and Tcl cannot conceal it. The overall stream semantics
+\fIare\fR compatible, so blocking reads and writes will not see most of the
+differences, but the details of what exactly gets written when are not. This
+is most likely to show up when using pipelines for testing; care should be
+taken to ensure that deadlocks do not occur and that potential short reads are
+allowed for.
+.RE
+.\" METHOD: pop
 .TP
-\fBchan postevent \fIchannelId eventSpec\fR
+\fBchan pop \fIchannel\fR
+.
+Removes the topmost transformation from the channel \fIchannel\fR, if there
+is any. If there are no transformations added to \fIchannel\fR, this is
+equivalent to \fBchan close\fR of that channel. The result is normally the
+empty string, but can be an error in some situations (i.e. where the
+underlying system stream is closed and that results in an error).
+.\" METHOD: postevent
+.TP
+\fBchan postevent \fIchannel eventSpec\fR
 .
 This subcommand is used by command handlers specified with \fBchan
 create\fR. It notifies the channel represented by the handle
-\fIchannelId\fR that the event(s) listed in the \fIeventSpec\fR have
+\fIchannel\fR that the event(s) listed in the \fIeventSpec\fR have
 occurred. The argument has to be a list containing any of the strings
 \fBread\fR and \fBwrite\fR. The list must contain at least one
 element as it does not make sense to invoke the command if there are
@@ -539,7 +612,7 @@ other interpreter will cause this subcommand to report an error.
 Another restriction is that it is not possible to post events that the
 I/O core has not registered an interest in. Trying to do so will cause
 the method to throw an error. See the command handler method
-\fBwatch\fR described in \fBreflectedchan\fR, the document specifying
+\fBwatch\fR described in \fBrefchan\fR, the document specifying
 the API of command handlers for reflected channels.
 .PP
 This command is \fBsafe\fR and made accessible to safe interpreters.
@@ -549,12 +622,25 @@ where the event is posted from a safe interpreter and listened for by
 a trusted interpreter. \fBChan event\fR handlers are \fIalways\fR
 executed in the interpreter that set them up.
 .RE
+.\" METHOD: push
 .TP
-\fBchan puts\fR ?\fB\-nonewline\fR? ?\fIchannelId\fR? \fIstring\fR
+\fBchan push \fIchannel cmdPrefix\fR
 .
-Writes \fIstring\fR to the channel named \fIchannelId\fR followed by a
+Adds a new transformation on top of the channel \fIchannel\fR. The
+\fIcmdPrefix\fR argument describes a list of one or more words which represent
+a handler that will be used to implement the transformation. The command
+prefix must provide the API described in the \fBtranschan\fR manual page.
+The result of this subcommand is a handle to the transformation. Note that it
+is important to make sure that the transformation is capable of supporting the
+channel mode that it is used with or this can make the channel neither
+readable nor writable.
+.\" METHOD: puts
+.TP
+\fBchan puts\fR ?\fB\-nonewline\fR? ?\fIchannel\fR? \fIstring\fR
+.
+Writes \fIstring\fR to the channel named \fIchannel\fR followed by a
 newline character. A trailing newline character is written unless the
-optional flag \fB\-nonewline\fR is given. If \fIchannelId\fR is
+optional flag \fB\-nonewline\fR is given. If \fIchannel\fR is
 omitted, the string is written to the standard output channel,
 \fBstdout\fR.
 .RS
@@ -574,27 +660,33 @@ flush\fR command.
 .PP
 When the output buffer fills up, the \fBchan puts\fR command will
 normally block until all the buffered data has been accepted for
-output by the operating system.  If \fIchannelId\fR is in nonblocking
+output by the operating system.  If \fIchannel\fR is in non-blocking
 mode then the \fBchan puts\fR command will not block even if the
 operating system cannot accept the data.  Instead, Tcl continues to
 buffer the data and writes it in the background as fast as the
 underlying file or device can accept it.  The application must use the
-Tcl event loop for nonblocking output to work; otherwise Tcl never
+Tcl event loop for non-blocking output to work; otherwise Tcl never
 finds out that the file or device is ready for more output data.  It
 is possible for an arbitrarily large amount of data to be buffered for
-a channel in nonblocking mode, which could consume a large amount of
-memory.  To avoid wasting memory, nonblocking I/O should normally be
+a channel in non-blocking mode, which could consume a large amount of
+memory.  To avoid wasting memory, non-blocking I/O should normally be
 used in an event-driven fashion with the \fBchan event\fR command
 (do not invoke \fBchan puts\fR unless you have recently been notified
 via a file event that the channel is ready for more output data).
+.PP
+The command will raise an error exception with POSIX error code \fBEILSEQ\fR if
+the encoding profile \fBstrict\fR is in effect for the channel and the output
+data cannot be encoded in the encoding configured for the channel. Data
+may be partially written to the channel in this case.
 .RE
+.\" METHOD: read
 .TP
-\fBchan read \fIchannelId\fR ?\fInumChars\fR?
+\fBchan read \fIchannel\fR ?\fInumChars\fR?
 .TP
-\fBchan read \fR?\fB\-nonewline\fR? \fIchannelId\fR
+\fBchan read \fR?\fB\-nonewline\fR? \fIchannel\fR
 .
 In the first form, the result will be the next \fInumChars\fR
-characters read from the channel named \fIchannelId\fR; if
+characters read from the channel named \fIchannel\fR; if
 \fInumChars\fR is omitted, all characters up to the point when the
 channel would signal a failure (whether an end-of-file, blocked or
 other error condition) are read. In the second form (i.e. when
@@ -603,7 +695,7 @@ given to indicate that any trailing newline in the string that has
 been read should be trimmed.
 .RS
 .PP
-If \fIchannelId\fR is in nonblocking mode, \fBchan read\fR may not
+If \fIchannel\fR is in non-blocking mode, \fBchan read\fR may not
 read as many characters as requested: once all available input has
 been read, the command will return the data that is available rather
 than blocking for more input.  If the channel is configured to use a
@@ -619,49 +711,61 @@ channel (see \fBchan configure\fR above for a discussion on the ways
 in which \fBchan configure\fR will alter input).
 .PP
 When reading from a serial port, most applications should configure
-the serial port channel to be nonblocking, like this:
+the serial port channel to be non-blocking, like this:
+.PP
 .CS
-\fBchan configure \fIchannelId \fB\-blocking \fI0\fR.
+\fBchan configure \fIchannel \fB\-blocking \fI0\fR.
 .CE
+.PP
 Then \fBchan read\fR behaves much like described above.  Note that
 most serial ports are comparatively slow; it is entirely possible to
 get a \fBreadable\fR event for each character read from them. Care
 must be taken when using \fBchan read\fR on blocking serial ports:
 .TP
-\fBchan read \fIchannelId numChars\fR
+\fBchan read \fIchannel numChars\fR
 .
 In this form \fBchan read\fR blocks until \fInumChars\fR have been
 received from the serial port.
 .TP
-\fBchan read \fIchannelId\fR
+\fBchan read \fIchannel\fR
 .
 In this form \fBchan read\fR blocks until the reception of the
 end-of-file character, see \fBchan configure -eofchar\fR. If there no
 end-of-file character has been configured for the channel, then
 \fBchan read\fR will block forever.
+.PP
+If the encoding profile \fBstrict\fR is in effect for the channel, the command
+will raise an exception with the POSIX error code \fBEILSEQ\fR if any encoding
+errors are encountered in the channel input data. If the channel is in blocking
+mode, the error is thrown after advancing the file pointer to the beginning of
+the invalid data. The successfully decoded leading portion of the data prior to
+the error location is returned as the value of the \fB\-data\fR key of the error
+option dictionary. If the channel is in non-blocking mode, the successfully
+decoded portion of data is returned by the command without an error
+exception being raised. A subsequent read will start at the invalid data
+and immediately raise a \fBEILSEQ\fR POSIX error exception. Unlike the
+blocking channel case, the \fB\-data\fR key is not present in the
+error option dictionary. In the case of exception thrown due to encoding
+errors, it is possible to introspect, and in some cases recover, by
+changing the encoding in use. See \fBENCODING ERROR EXAMPLES\fR later.
 .RE
+.\" METHOD: seek
 .TP
-\fBchan seek \fIchannelId offset\fR ?\fIorigin\fR?
+\fBchan seek \fIchannel offset\fR ?\fIorigin\fR?
 .
 Sets the current access position within the underlying data stream for
-the channel named \fIchannelId\fR to be \fIoffset\fR bytes relative to
+the channel named \fIchannel\fR to be \fIoffset\fR bytes relative to
 \fIorigin\fR. \fIOffset\fR must be an integer (which may be negative)
 and \fIorigin\fR must be one of the following:
 .RS
-.TP 10
-\fBstart\fR
-.
+.IP \fBstart\fR
 The new access position will be \fIoffset\fR bytes from the start
 of the underlying file or device.
-.TP 10
-\fBcurrent\fR
-.
+.IP \fBcurrent\fR
 The new access position will be \fIoffset\fR bytes from the current
 access position; a negative \fIoffset\fR moves the access position
 backwards in the underlying file or device.
-.TP 10
-\fBend\fR
-.
+.IP \fBend\fR
 The new access position will be \fIoffset\fR bytes from the end of the
 file or device.  A negative \fIoffset\fR places the access position
 before the end of file, and a positive \fIoffset\fR places the access
@@ -670,7 +774,7 @@ position after the end of file.
 The \fIorigin\fR argument defaults to \fBstart\fR.
 .PP
 \fBChan seek\fR flushes all buffered output for the channel before the
-command returns, even if the channel is in nonblocking mode.  It also
+command returns, even if the channel is in non-blocking mode.  It also
 discards any buffered and unread input.  This command returns an empty
 string.  An error occurs if this command is applied to channels whose
 underlying file or device does not support seeking.
@@ -679,26 +783,38 @@ Note that \fIoffset\fR values are byte offsets, not character offsets.
 Both \fBchan seek\fR and \fBchan tell\fR operate in terms of bytes,
 not characters, unlike \fBchan read\fR.
 .RE
+.\" METHOD: tell
 .TP
-\fBchan tell \fIchannelId\fR
+\fBchan tell \fIchannel\fR
 .
 Returns a number giving the current access position within the
-underlying data stream for the channel named \fIchannelId\fR. This
+underlying data stream for the channel named \fIchannel\fR. This
 value returned is a byte offset that can be passed to \fBchan seek\fR
 in order to set the channel to a particular position.  Note that this
 value is in terms of bytes, not characters like \fBchan read\fR.  The
 value returned is -1 for channels that do not support seeking.
+.\" METHOD: truncate
 .TP
-\fBchan truncate \fIchannelId\fR ?\fIlength\fR?
+\fBchan truncate \fIchannel\fR ?\fIlength\fR?
 .
 Sets the byte length of the underlying data stream for the channel
-named \fIchannelId\fR to be \fIlength\fR (or to the current byte
+named \fIchannel\fR to be \fIlength\fR (or to the current byte
 offset within the underlying data stream if \fIlength\fR is
 omitted). The channel is flushed before truncation.
-.SH EXAMPLE
-This opens a file using a known encoding (CP1252, a very common encoding
-on Windows), searches for a string, rewrites that part, and truncates the
-file after a further two lines.
+.
+.SH EXAMPLES
+.SS "SIMPLE CHANNEL OPERATION EXAMPLES"
+.PP
+Instruct Tcl to always send output to \fBstdout\fR immediately,
+whether or not it is to a terminal:
+.PP
+.CS
+\fBfconfigure\fR stdout -buffering none
+.CE
+.PP
+In the following example a file is opened using the encoding CP1252, which is
+common on Windows, searches for a string, rewrites that part, and truncates the
+file two lines later.
 .PP
 .CS
 set f [open somefile.txt r+]
@@ -707,30 +823,368 @@ set offset 0
 
 \fI# Search for string "FOOBAR" in the file\fR
 while {[\fBchan gets\fR $f line] >= 0} {
-   set idx [string first FOOBAR $line]
-   if {$idx > -1} {
-      \fI# Found it; rewrite line\fR
+    set idx [string first FOOBAR $line]
+    if {$idx >= 0} {
+        \fI# Found it; rewrite line\fR
 
-      \fBchan seek\fR $f [expr {$offset + $idx}]
-      \fBchan puts\fR -nonewline $f BARFOO
+        \fBchan seek\fR $f [expr {$offset + $idx}]
+        \fBchan puts\fR -nonewline $f BARFOO
 
-      \fI# Skip to end of following line, and truncate\fR
-      \fBchan gets\fR $f
-      \fBchan gets\fR $f
-      \fBchan truncate\fR $f
+        \fI# Skip to end of following line, and truncate\fR
+        \fBchan gets\fR $f
+        \fBchan gets\fR $f
+        \fBchan truncate\fR $f
 
-      \fI# Stop searching the file now\fR
-      break
-   }
+        \fI# Stop searching the file now\fR
+        break
+    }
 
-   \fI# Save offset of start of next line for later\fR
-   set offset [\fBchan tell\fR $f]
+    \fI# Save offset of start of next line for later\fR
+    set offset [\fBchan tell\fR $f]
 }
 \fBchan close\fR $f
 .CE
+.PP
+This example illustrates flushing of a channel. The user is
+prompted for some information. Because the standard input channel
+is line buffered, it must be flushed for the user to see the prompt.
+.PP
+.CS
+chan puts -nonewline "Please type your name: "
+\fBchan flush\fR stdout
+chan gets stdin name
+chan puts "Hello there, $name!"
+.CE
+.PP
+This example reads a file one line at a time and prints it out with
+the current line number attached to the start of each line.
+.PP
+.CS
+set chan [open "some.file.txt"]
+set lineNumber 0
+while {[\fBchan gets\fR $chan line] >= 0} {
+    chan puts "[incr lineNumber]: $line"
+}
+chan close $chan
+.CE
+.PP
+In this example illustrating event driven reads,
+\fBGetData\fR will be called with the channel as an
+argument whenever $chan becomes readable. The \fBread\fR call will
+read whatever binary data is currently available without blocking.
+Here the channel has the fileevent removed when an end of file
+occurs to avoid being continually called (see above). Alternatively
+the channel may be closed on this condition.
+.PP
+.CS
+proc GetData {chan} {
+    set data [chan read $chan]
+    chan puts "[string length $data] $data"
+    if {[chan eof $chan]} {
+        chan event $chan readable {}
+    }
+}
+
+chan configure $chan -blocking 0 -translation binary
+\fBchan event\fR $chan readable [list GetData $chan]
+.CE
+.PP
+The next example is similar but uses \fBchan gets\fR to read
+line-oriented data.
+.PP
+.CS
+proc GetData {chan} {
+    if {[chan gets $chan line] >= 0} {
+        chan puts $line
+    }
+    if {[chan eof $chan]} {
+        chan close $chan
+    }
+}
+
+chan configure $chan -blocking 0 -buffering line -translation crlf
+\fBchan event\fR $chan readable [list GetData $chan]
+.CE
+.PP
+A network server that echoes its input line-by-line without
+preventing servicing of other connections at the same time:
+.PP
+.CS
+# This is a very simple logger...
+proc log {message} {
+    \fBchan puts\fR stdout $message
+}
+
+# This is called whenever a new client connects to the server
+proc connect {chan host port} {
+    set clientName [format <%s:%d> $host $port]
+    log "connection from $clientName"
+    \fBchan configure\fR $chan -blocking 0 -buffering line
+    \fBchan event\fR $chan readable [list echoLine $chan $clientName]
+}
+
+# This is called whenever either at least one byte of input
+# data is available, or the channel was closed by the client.
+proc echoLine {chan clientName} {
+    \fBchan gets\fR $chan line
+    if {[\fBchan eof\fR $chan]} {
+        log "finishing connection from $clientName"
+        \fBchan close\fR $chan
+    } elseif {![\fBchan blocked\fR $chan]} {
+        # Didn't block waiting for end-of-line
+        log "$clientName - $line"
+        \fBchan puts\fR $chan $line
+    }
+}
+
+# Create the server socket and enter the event-loop to wait
+# for incoming connections...
+socket -server connect 12345
+vwait forever
+.CE
+.PP
+The following example reads a PPM-format image from a file
+combining ASCII and binary content.
+.PP
+.CS
+# Open the file and put it into Unix ASCII mode
+set f [open teapot.ppm]
+\fBchan configure\fR $f -encoding ascii -translation lf
+
+# Get the header
+if {[chan gets $f] ne "P6"} {
+    error "not a raw\-bits PPM"
+}
+
+# Read lines until we have got non-comment lines
+# that supply us with three decimal values.
+set words {}
+while {[llength $words] < 3} {
+    chan gets $f line
+    if {[string match "#*" $line]} continue
+    lappend words {*}[join [scan $line %d%d%d]]
+}
+
+# Those words supply the size of the image and its
+# overall depth per channel. Assign to variables.
+lassign $words xSize ySize depth
+
+# Now switch to binary mode to pull in the data,
+# one byte per channel (red,green,blue) per pixel.
+\fBchan configure\fR $f -translation binary
+set numDataBytes [expr {3 * $xSize * $ySize}]
+set data [chan read $f $numDataBytes]
+
+close $f
+.CE
+.SS "FILE SEEK EXAMPLES"
+.PP
+Read a file twice:
+.PP
+.CS
+set f [open file.txt]
+set data1 [chan read $f]
+\fBchan seek\fR $f 0
+set data2 [chan read $f]
+chan close $f
+# $data1 eq $data2 if the file wasn't updated
+.CE
+.PP
+Read the last 10 bytes from a file:
+.PP
+.CS
+set f [open file.data]
+# This is guaranteed to work with binary data but
+# may fail with other encodings...
+chan configure $f -translation binary
+\fBchan seek\fR $f -10 end
+set data [chan read $f 10]
+chan close $f
+.CE
+.PP
+Read a line from a file channel only if it starts with \fBfoobar\fR:
+.PP
+.CS
+# Save the offset in case we need to undo the read...
+set offset [\fBtell\fR $chan]
+if {[read $chan 6] eq "foobar"} {
+    gets $chan line
+} else {
+    set line {}
+    # Undo the read...
+    seek $chan $offset
+}
+.CE
+.SS "ENCODING ERROR EXAMPLES"
+.PP
+The example below illustrates handling of an encoding error encountered
+during channel input. First, creation of a test file containing
+the invalid UTF-8 sequence (\fBA \\xC3 B\fR):
+.PP
+.CS
+% set f [open test_A_195_B.txt wb]; chan puts -nonewline $f A\\xC3B; chan close $f
+.CE
+.PP
+An attempt to read the file will result in an encoding error which is
+then introspected by switching the channel to binary mode. Note in the
+example that when the error is reported the file position remains
+unchanged so that the \fBchan gets\fR during recovery returns the
+full line.
+.PP
+.CS
+% set f [open test_A_195_B.txt r]
+file384b6a8
+% chan configure $f -encoding utf-8
+% catch {chan gets $f} e d
+1
+% set d
+-code 1 -level 0
+-errorstack {INNER {invokeStk1 gets file384b6a8}}
+-errorcode {POSIX EILSEQ {invalid or incomplete multibyte or wide character}}
+-errorinfo {...} -errorline 1
+% chan tell $f
+0
+% chan configure $f -translation binary
+% chan gets $f
+AÃB
+.CE
+.PP
+The following example is similar to the above but demonstrates recovery after a
+blocking read. The successfully decoded data "A" is returned in the error options
+dictionary key \fB\-data\fR. The file position is advanced on the encoding error
+position 1. The data at the error position is thus recovered by the next
+\fBchan read\fR command.
+.PP
+.CS
+% set f [open test_A_195_B.txt r]
+file35a65a0
+% chan configure $f -encoding utf-8 -blocking 1
+% catch {chan read $f} e d
+1
+% set d
+-data A -code 1 -level 0
+-errorstack {INNER {invokeStk1 read file35a65a0}}
+-errorcode {POSIX EILSEQ {invalid or incomplete multibyte or wide character}}
+-errorinfo {...} -errorline 1
+% chan tell $f
+1
+% chan configure $f -translation binary
+% chan read $f
+ÃB
+% chan close $f
+.CE
+.PP
+Finally the same example, but this time with a non-blocking channel.
+.PP
+.CS
+% set f [open test_A_195_B.txt r]
+file35a65a0
+% chan configure $f -encoding utf-8 -blocking 0
+% chan read $f
+A
+% chan tell $f
+1
+% catch {chan read $f} e d
+1
+% set d
+-code 1 -level 0
+-errorstack {INNER {invokeStk1 read file384b228}}
+-errorcode {POSIX EILSEQ {invalid or incomplete multibyte or wide character}}
+-errorinfo {...} -errorline 1
+.CE
+
+.SS "CHANNEL COPY EXAMPLES"
+.PP
+The first example transfers the contents of one channel exactly to
+another. Note that when copying one file to another, it is better to
+use \fBfile copy\fR which also copies file metadata (e.g. the file
+access permissions) where possible.
+.PP
+.CS
+\fBchan configure\fR $in -translation binary
+\fBchan configure\fR $out -translation binary
+\fBchan copy\fR $in $out
+.CE
+.PP
+This second example shows how the callback gets
+passed the number of bytes transferred.
+It also uses vwait to put the application into the event loop.
+Of course, this simplified example could be done without the command
+callback.
+.PP
+.CS
+proc Cleanup {in out bytes {error {}}} {
+    global total
+    set total $bytes
+    \fBchan close\fR $in
+    \fBchan close\fR $out
+    if {$error ne ""} {
+        # error occurred during the copy
+    }
+}
+
+set in [open $file1]
+set out [socket $server $port]
+\fBchan copy\fR $in $out -command [list Cleanup $in $out]
+vwait total
+.CE
+.PP
+The third example copies in chunks and tests for end of file
+in the command callback.
+.PP
+.CS
+proc CopyMore {in out chunk bytes {error {}}} {
+    global total done
+    incr total $bytes
+    if {($error ne "") || [\fBchan eof\fR $in]} {
+        set done $total
+        \fBchan close\fR $in
+        \fBchan close\fR $out
+    } else {
+        \fBchan copy\fR $in $out -size $chunk \e
+            -command [list CopyMore $in $out $chunk]
+    }
+}
+
+set in [open $file1]
+set out [socket $server $port]
+set chunk 1024
+set total 0
+\fBchan copy\fR $in $out -size $chunk \e
+    -command [list CopyMore $in $out $chunk]
+vwait done
+.CE
+.PP
+The fourth example starts an asynchronous, bidirectional copy between
+two sockets. Those could also be pipes from two bidirectional pipelines
+(e.g., \fI[open "|hal 9000" r+]\fR); the conversation will remain
+essentially secret to the script, since all four \fBchan event\fR slots
+are busy, though any transforms that are \fBchan push\fRed on the
+channels will be able to observe the passing traffic.
+.PP
+.CS
+proc Done {dir args} {
+    global flows done
+    \fBchan puts\fR "$dir is over."
+    incr flows -1
+    if {$flows <= 0} {
+        set done 1
+    }
+}
+
+set flows 2
+\fBchan copy\fR $sok1 $sok2 -command [list Done UP]
+\fBchan copy\fR $sok2 $sok1 -command [list Done DOWN]
+vwait done
+.CE
 .SH "SEE ALSO"
 close(n), eof(n), fblocked(n), fconfigure(n), fcopy(n), file(n),
 fileevent(n), flush(n), gets(n), open(n), puts(n), read(n), seek(n),
-socket(n), tell(n), refchan(n)
+socket(n), tell(n), refchan(n), transchan(n),
+Tcl_StandardChannels(3)
 .SH KEYWORDS
-channel, input, output, events, offset
+blocking, channel, end of file, events, input, non-blocking,
+offset, output, readable, seek, stdio, tell, writable
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/class.n b/doc/class.n
new file mode 100644
index 0000000..22aad24
--- /dev/null
+++ b/doc/class.n
@@ -0,0 +1,142 @@
+'\"
+'\" Copyright (c) 2007 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH class n 0.1 TclOO "TclOO Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+oo::class \- class of all classes
+.SH SYNOPSIS
+.nf
+package require tcl::oo
+
+\fBoo::class\fI method \fR?\fIarg ...\fR?
+.fi
+.SH "CLASS HIERARCHY"
+.nf
+\fBoo::object\fR
+   \(-> \fBoo::class\fR
+.fi
+.BE
+.SH DESCRIPTION
+.PP
+Classes are objects that can manufacture other objects according to a pattern
+stored in the factory object (the class). An instance of the class is created
+by calling one of the class's factory methods, typically either \fBcreate\fR
+if an explicit name is being given, or \fBnew\fR if an arbitrary unique name
+is to be automatically selected.
+.PP
+The \fBoo::class\fR class is the class of all classes; every class is an
+instance of this class, which is consequently an instance of itself. This
+class is a subclass of \fBoo::object\fR, so every class is also an object.
+Additional metaclasses (i.e., classes of classes) can be defined if necessary
+by subclassing \fBoo::class\fR. Note that the \fBoo::class\fR object hides the
+\fBnew\fR method on itself, so new classes should always be made using the
+\fBcreate\fR method.
+.SS CONSTRUCTOR
+.PP
+The constructor of the \fBoo::class\fR class takes an optional argument which,
+if present, is sent to the \fBoo::define\fR command (along with the name of
+the newly-created class) to allow the class to be conveniently configured at
+creation time.
+.SS DESTRUCTOR
+The \fBoo::class\fR class does not define an explicit destructor. However,
+when a class is destroyed, all its subclasses and instances are also
+destroyed, along with all objects that it has been mixed into.
+.SS "EXPORTED METHODS"
+.\" METHOD: create
+.TP
+\fIcls \fBcreate \fIname \fR?\fIarg ...\fR?
+.
+This creates a new instance of the class \fIcls\fR called \fIname\fR (which is
+resolved within the calling context's namespace if not fully qualified),
+passing the arguments, \fIarg ...\fR, to the constructor, and (if that returns
+a successful result) returning the fully qualified name of the created object
+(the result of the constructor is ignored). If the constructor fails (i.e.
+returns a non-OK result) then the object is destroyed and the error message is
+the result of this method call.
+.\" METHOD: new
+.TP
+\fIcls \fBnew \fR?\fIarg ...\fR?
+.
+This creates a new instance of the class \fIcls\fR with a new unique name,
+passing the arguments, \fIarg ...\fR, to the constructor, and (if that returns
+a successful result) returning the fully qualified name of the created object
+(the result of the constructor is ignored). If the constructor fails (i.e.,
+returns a non-OK result) then the object is destroyed and the error message is
+the result of this method call.
+.RS
+.PP
+Note that this method is not exported by the \fBoo::class\fR object itself, so
+classes should not be created using this method.
+.RE
+.SS "NON-EXPORTED METHODS"
+.PP
+The \fBoo::class\fR class supports the following non-exported methods:
+.\" METHOD: createWithNamespace
+.TP
+\fIcls \fBcreateWithNamespace\fI name nsName\fR ?\fIarg ...\fR?
+.
+This creates a new instance of the class \fIcls\fR called \fIname\fR (which is
+resolved within the calling context's namespace if not fully qualified),
+passing the arguments, \fIarg ...\fR, to the constructor, and (if that returns
+a successful result) returning the fully qualified name of the created object
+(the result of the constructor is ignored). The name of the instance's
+internal namespace will be \fInsName\fR;
+.VS
+it is an error if that namespace cannot be created.
+.VE
+If the constructor fails
+(i.e., returns a non-OK result) then the object is destroyed and the error
+message is the result of this method call.
+.SH EXAMPLES
+.PP
+This example defines a simple class hierarchy and creates a new instance of
+it. It then invokes a method of the object before destroying the hierarchy and
+showing that the destruction is transitive.
+.PP
+.CS
+\fBoo::class create\fR fruit {
+    method eat {} {
+        puts "yummy!"
+    }
+}
+\fBoo::class create\fR banana {
+    superclass fruit
+    constructor {} {
+        my variable peeled
+        set peeled 0
+    }
+    method peel {} {
+        my variable peeled
+        set peeled 1
+        puts "skin now off"
+    }
+    method edible? {} {
+        my variable peeled
+        return $peeled
+    }
+    method eat {} {
+        if {![my edible?]} {
+            my peel
+        }
+        next
+    }
+}
+set b [banana \fBnew\fR]
+$b eat               \fI\(-> prints "skin now off" and "yummy!"\fR
+fruit destroy
+$b eat               \fI\(-> error "unknown command"\fR
+.CE
+.SH "SEE ALSO"
+oo::define(n), oo::object(n)
+.SH KEYWORDS
+class, metaclass, object
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/classvariable.n b/doc/classvariable.n
new file mode 100644
index 0000000..198f09e
--- /dev/null
+++ b/doc/classvariable.n
@@ -0,0 +1,78 @@
+'\"
+'\" Copyright (c) 2011-2015 Andreas Kupries
+'\" Copyright (c) 2018 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH classvariable n 0.3 TclOO "TclOO Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+classvariable \- create link from local variable to variable in class
+.SH SYNOPSIS
+.nf
+package require tcl::oo
+
+\fBclassvariable\fI variableName\fR ?\fI...\fR?
+.fi
+.BE
+.SH DESCRIPTION
+The \fBclassvariable\fR command is available within methods. It takes a series
+of one or more variable names and makes them available in the method's scope;
+those variable names must not be qualified and must not refer to array
+elements. The originating scope for the variables is the namespace of the
+class that the method was defined by. In other words, the referenced variables
+are shared between all instances of that class.
+.PP
+Note that this command is equivalent to the command \fBtypevariable\fR provided
+by the snit package in tcllib for approximately the same purpose. If used in a
+method defined directly on a class instance (e.g., through the
+\fBoo::objdefine\fR \fBmethod\fR definition) this is very much like just
+using:
+.PP
+.CS
+namespace upvar [namespace current] $var $var
+.CE
+.PP
+for each variable listed to \fBclassvariable\fR.
+.SH EXAMPLE
+This class counts how many instances of it have been made.
+.PP
+.CS
+oo::class create Counted {
+    initialise {
+        variable count 0
+    }
+
+    variable number
+    constructor {} {
+        \fBclassvariable\fR count
+        set number [incr count]
+    }
+
+    method report {} {
+        \fBclassvariable\fR count
+        puts "This is instance $number of $count"
+    }
+}
+
+set a [Counted new]
+set b [Counted new]
+$a report
+        \fI\(-> This is instance 1 of 2\fR
+set c [Counted new]
+$b report
+        \fI\(-> This is instance 2 of 3\fR
+$c report
+        \fI\(-> This is instance 3 of 3\fR
+.CE
+.SH "SEE ALSO"
+global(n), namespace(n), oo::class(n), oo::define(n), upvar(n), variable(n)
+.SH KEYWORDS
+class, class variable, variable
+.\" Local Variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/clock.n b/doc/clock.n
index b2d53ed..f20fd88 100644
--- a/doc/clock.n
+++ b/doc/clock.n
@@ -8,76 +8,90 @@
 .SH NAME
 clock \- Obtain and manipulate dates and times
 .SH "SYNOPSIS"
-package require \fBTcl 8.5\fR
-.sp
-\fBclock add\fR \fItimeVal\fR ?\fIcount unit...\fR? ?\fI\-option value\fR?
-.sp
+.nf
+package require \fBTcl 8.5-\fR
+
+\fBclock add\fI timeVal\fR ?\fIcount unit...\fR? ?\fI\-option value\fR?
 \fBclock clicks\fR ?\fI\-option\fR?
-.sp
-\fBclock format\fR \fItimeVal\fR ?\fI\-option value\fR...?
-.sp
+\fBclock format\fI timeVal\fR ?\fI\-option value\fR...?
 \fBclock microseconds\fR
-.sp
 \fBclock milliseconds\fR
-.sp
-\fBclock scan\fR \fIinputString\fR ?\fI\-option value\fR...?
-.sp
+\fBclock scan\fI inputString\fR ?\fI\-option value\fR...?
 \fBclock seconds\fR
-.sp
+.fi
 .BE
 .SH "DESCRIPTION"
 .PP
 The \fBclock\fR command performs several operations that obtain and
 manipulate values that represent times.  The command supports several
 subcommands that determine what action is carried out by the command.
+.\" METHOD: add
 .TP
-\fBclock add\fR \fItimeVal\fR ?\fIcount unit...\fR? ?\fI\-option value\fR?
+\fBclock add\fI timeVal\fR ?\fIcount unit...\fR? ?\fI\-option value\fR?
+.
 Adds a (possibly negative) offset to a time that is expressed as an
 integer number of seconds.  See \fBCLOCK ARITHMETIC\fR for a full description.
+.\" METHOD: clicks
 .TP
 \fBclock clicks\fR ?\fI\-option\fR?
+.
 If no \fI\-option\fR argument is supplied, returns a high-resolution
 time value as a system-dependent integer value.  The unit of the value
 is system-dependent but should be the highest resolution clock available
-on the system such as a CPU cycle counter.  See \fBHIGH RESOLUTION TIMERS\fR for a full description.
+on the system such as a CPU cycle counter.
+See \fBHIGH RESOLUTION TIMERS\fR for a full description.
 .RS
 .PP
-If the \fI\-option\fR argument is \fI\-milliseconds\fR, then the command
+If the \fI\-option\fR argument is \fB\-milliseconds\fR, then the command
 is synonymous with \fBclock milliseconds\fR (see below).  This
 usage is obsolete, and \fBclock milliseconds\fR is to be
 considered the preferred way of obtaining a count of milliseconds.
 .PP
-If the \fI\-option\fR argument is \fI\-microseconds\fR, then the command
+If the \fI\-option\fR argument is \fB\-microseconds\fR, then the command
 is synonymous with \fBclock microseconds\fR (see below).  This
 usage is obsolete, and \fBclock microseconds\fR is to be
 considered the preferred way of obtaining a count of microseconds.
 .RE
+.\" METHOD: format
 .TP
-\fBclock format\fR \fItimeVal\fR ?\fI\-option value\fR...?
+\fBclock format\fI timeVal\fR ?\fI\-option value\fR...?
+.
 Formats a time that is expressed as an integer number of seconds into a format
 intended for consumption by users or external programs.
 See \fBFORMATTING TIMES\fR for a full description.
+.\" METHOD: microseconds
 .TP
 \fBclock microseconds\fR
-Returns the current time as an integer number of microseconds.  See \fBHIGH RESOLUTION TIMERS\fR for a full description.
+.
+Returns the current time as an integer number of microseconds.
+See \fBHIGH RESOLUTION TIMERS\fR for a full description.
+.\" METHOD: milliseconds
 .TP
 \fBclock milliseconds\fR
-Returns the current time as an integer number of milliseconds.  See \fBHIGH RESOLUTION TIMERS\fR for a full description.
+.
+Returns the current time as an integer number of milliseconds.
+See \fBHIGH RESOLUTION TIMERS\fR for a full description.
+.\" METHOD: scan
 .TP
-\fBclock scan\fR \fIinputString\fR ?\fI\-option value\fR...?
+\fBclock scan\fI inputString\fR ?\fI\-option value\fR...?
+.
 Scans a time that is expressed as a character string and produces an
 integer number of seconds.
 See \fBSCANNING TIMES\fR for a full description.
+.\" METHOD: seconds
 .TP
 \fBclock seconds\fR
+.
 Returns the current time as an integer number of seconds.
 .SS "PARAMETERS"
 .TP
 \fIcount\fR
+.
 An integer representing a count of some unit of time.  See
 \fBCLOCK ARITHMETIC\fR for the details.
 .TP
 \fItimeVal\fR
+.
 An integer value passed to the \fBclock\fR command that represents an
 absolute time as a number of seconds from the \fIepoch time\fR of
 1 January 1970, 00:00 UTC.  Note that the count of seconds does not
@@ -87,49 +101,67 @@ slowing its clock by a tiny fraction for some minutes until it is
 back in sync with UTC; its data model does not represent minutes that
 have 59 or 61 seconds.
 .TP
+\fInow\fR
+Instead of \fItimeVal\fR a non-integer value \fBnow\fR can be used as
+replacement for today, which is simply interpolated to the run-time as value
+of \fBclock seconds\fR. For example:
+.sp
+\fBclock format now -f %a; # current day of the week\fR
+.sp
+\fBclock add now 1 month; # next month\fR
+.TP
 \fIunit\fR
+.
 One of the words, \fBseconds\fR, \fBminutes\fR, \fBhours\fR,
-\fBdays\fR, \fBweeks\fR, \fBmonths\fR, or \fByears\fR, or
-any unique prefix of such a word. Used in conjunction with \fIcount\fR
-to identify an interval of time, for example, \fI3 seconds\fR or
-\fI1 year\fR.
+\fBdays\fR, \fBweekdays\fR, \fBweeks\fR, \fBmonths\fR, or \fByears\fR.
+Used in conjunction with \fIcount\fR to identify an interval of time,
+for example, \fI3 seconds\fR or \fI1 year\fR.
 .SS "OPTIONS"
+.\" OPTION: -base
 .TP
 \fB\-base\fR time
+.
 Specifies that any relative times present in a \fBclock scan\fR command
 are to be given relative to \fItime\fR.  \fItime\fR must be expressed as
 a count of nominal seconds from the epoch time of 1 January 1970, 00:00 UTC.
+.\" OPTION: -format
 .TP
 \fB\-format\fR format
+.
 Specifies the desired output format for \fBclock format\fR or the
 expected input format for \fBclock scan\fR.  The \fIformat\fR string consists
 of any number of characters other than the per-cent sign
 .PQ \fB%\fR
-interspersed with any number of \fIformat groups\fR, which are two-character
+interspersed with any number of \fIformat groups\fR, which are two- or three-character
 sequences beginning with the per-cent sign.  The permissible format groups,
 and their interpretation, are described under \fBFORMAT GROUPS\fR.
 .RS
 .PP
 On \fBclock format\fR, the default format is
+.PP
 .CS
 %a %b %d %H:%M:%S %Z %Y
 .CE
 .PP
-On \fBclock scan\fR, the lack of a \fI\-format\fR option indicates that a
+On \fBclock scan\fR, the lack of a \fB\-format\fR option indicates that a
 .QW "free format scan"
 is requested; see \fBFREE FORM SCAN\fR for a description of what happens.
 .RE
+.\" OPTION: -gmt
 .TP
 \fB\-gmt\fR boolean
+.
 If \fIboolean\fR is true, specifies that a time specified to \fBclock add\fR,
 \fBclock format\fR or \fBclock scan\fR should be processed in
 UTC.  If \fIboolean\fR is false, the processing defaults to the local time
 zone.  This usage is obsolete; the correct current usage is to
 specify the UTC time zone with
-.QW "\fB\-timezone\fR \fI:UTC\fR"
+.QW "\fB\-timezone\fI :UTC\fR"
 or any of the equivalent ways to specify it.
+.\" OPTION: -locale
 .TP
 \fB\-locale\fR localeName
+.
 Specifies that locale-dependent scanning and formatting (and date arithmetic
 for dates preceding the adoption of the Gregorian calendar) is to be done in
 the locale identified by \fIlocaleName\fR.  The locale name may be any of
@@ -143,8 +175,10 @@ descriptions of the individual format groups under \fBFORMAT GROUPS\fR.
 The effect of locale on clock arithmetic is discussed under
 \fBCLOCK ARITHMETIC\fR.
 .RE
+.\" OPTION: -timezone
 .TP
 \fB\-timezone\fR zoneName
+.
 Specifies that clock arithmetic, formatting, and scanning are to be done
 according to the rules for the time zone specified by \fIzoneName\fR.
 The permissible values, and their interpretation, are discussed under
@@ -160,20 +194,30 @@ the environment variable \fBTZ\fR.
 .IP [3]
 on Windows systems, the time zone settings from the Control Panel.
 .RE
+.\" OPTION: -validate
+.TP
+\fB\-validate\fR boolean
+.
+If \fIboolean\fR is true (default), \fBclock scan\fR will raise an error
+if the input contains invalid values, e.g. day of month greater than
+number of days in the month. If specified as false, the command makes
+an adjustment to bring values within acceptable range. See
+\fBSCANNING TIMES\fR for details.
+.PP
 If none of these is present, the C \fBlocaltime\fR and \fBmktime\fR
 functions are used to attempt to convert times between local and
 Greenwich.  On 32-bit systems, this approach is likely to have bugs,
 particularly for times that lie outside the window (approximately the
 years 1902 to 2037) that can be represented in a 32-bit integer.
 .SH "CLOCK ARITHMETIC"
+.PP
 The \fBclock add\fR command performs clock arithmetic on a value
 (expressed as nominal seconds from the epoch time of 1 January 1970, 00:00 UTC)
 given as its first argument.  The remaining arguments (other than the
 possible \fB\-timezone\fR, \fB\-locale\fR and \fB\-gmt\fR options)
 are integers and keywords in alternation, where the keywords are chosen
 from \fBseconds\fR, \fBminutes\fR, \fBhours\fR,
-\fBdays\fR, \fBweeks\fR, \fBmonths\fR, or \fByears\fR, or
-any unique prefix of such a word.
+\fBdays\fR, \fBweekdays\fR, \fBweeks\fR, \fBmonths\fR, or \fByears\fR.
 .PP
 Addition of seconds, minutes and hours is fairly straightforward;
 the given time increment (times sixty for minutes, or 3600 for hours)
@@ -185,9 +229,9 @@ Surprising results
 may be obtained when crossing a point at which a leap second is
 inserted or removed; the \fBclock add\fR command simply ignores
 leap seconds and therefore assumes that times come in sequence,
-23:59:58, 23:59:59, 00:00:00.  (This assumption is handled by
+23:59:58, 23:59:59, 00:00:00.  This assumption is handled by
 the fact that Tcl's model of time reacts to leap seconds by speeding
-or slowing the clock by a minuscule amount until Tcl's time
+or slowing the clock by a miniscule amount until Tcl's time
 is back in step with the world.
 .PP
 The fact that adding and subtracting hours is defined in terms of
@@ -195,6 +239,7 @@ absolute time means that it will add fixed amounts of time in time zones
 that observe summer time (Daylight Saving Time).  For example,
 the following code sets the value of \fBx\fR to \fB04:00:00\fR because
 the clock has changed in the interval in question.
+.PP
 .CS
 set s [\fBclock scan\fR {2004-10-30 05:00:00} \e
            -format {%Y-%m-%d %H:%M:%S} \e
@@ -209,12 +254,14 @@ the given time to a calendar day and time of day in the appropriate
 time zone and locale.  The requisite number of days (weeks are converted
 to days by multiplying by seven) is added to the calendar day, and
 the date and time are then converted back to a count of seconds from
-the epoch time.
+the epoch time.  The \fBweekdays\fR keyword is similar to \fBdays\fR,
+with the only difference that weekends - Saturdays and Sundays - are skipped.
 .PP
 Adding and subtracting a given number of days across the point that
 the time changes at the start or end of summer time (Daylight Saving Time)
 results in the \fIsame local time\fR on the day in question.  For
 instance, the following code sets the value of \fBx\fR to \fB05:00:00\fR.
+.PP
 .CS
 set s [\fBclock scan\fR {2004-10-30 05:00:00} \e
            -format {%Y-%m-%d %H:%M:%S} \e
@@ -230,6 +277,7 @@ yields an impossible time (for instance, 02:30 during the Spring
 Daylight Saving Time change using US rules), the time is converted
 as if the clock had not changed.  Thus, the following code
 will set the value of \fBx\fR to \fB03:30:00\fR.
+.PP
 .CS
 set s [\fBclock scan\fR {2004-04-03 02:30:00} \e
            -format {%Y-%m-%d %H:%M:%S} \e
@@ -242,6 +290,7 @@ set x [\fBclock format\fR $a \e
 Adding a given number of days or weeks works correctly across the conversion
 between the Julian and Gregorian calendars; the omitted days are skipped.
 The following code sets \fBz\fR to \fB1752-09-14\fR.
+.PP
 .CS
 set x [\fBclock scan\fR 1752-09-02 -format %Y-%m-%d -locale en_US]
 set y [\fBclock add\fR $x 1 day -locale en_US]
@@ -270,6 +319,7 @@ years as they are when adding/subtracting days and weeks.
 If multiple \fIcount unit\fR pairs are present on the command, they
 are evaluated consecutively, from left to right.
 .SH "HIGH RESOLUTION TIMERS"
+.PP
 Most of the subcommands supported by the \fBclock\fR command deal with
 times represented as a count of seconds from the epoch time, and this is the
 representation that \fBclock seconds\fR returns.  There are three exceptions,
@@ -284,6 +334,7 @@ epoch; it is simply intended to be the most precise interval timer
 available, and is intended only for relative timing studies such as
 benchmarks.
 .SH "FORMATTING TIMES"
+.PP
 The \fBclock format\fR command produces times for display to a user
 or writing to an external medium.  The command accepts times that are
 expressed in seconds from the epoch time of 1 January 1970, 00:00 UTC,
@@ -302,9 +353,9 @@ and their interpretation, are described under \fBFORMAT GROUPS\fR.
 If a \fB\-timezone\fR option is present, the following
 argument is a string that specifies the time zone in which the date and time
 are to be formatted.  As an alternative to
-.QW "\fB\-timezone\fR \fI:UTC\fR" ,
+.QW "\fB\-timezone\fI :UTC\fR" ,
 the obsolete usage
-.QW "\fB\-gmt\fR \fItrue\fR"
+.QW "\fB\-gmt\fI true\fR"
 may be used.  See
 \fBTIME ZONES\fR for the permissible variants for the time zone.
 .PP
@@ -313,15 +364,16 @@ a string that specifies the locale in which the time is to be formatted,
 in the same format that is used for the \fBmsgcat\fR package.  Note
 that the default, if \fB\-locale\fR is not specified, is the root locale
 \fB{}\fR rather than the current locale.  The current locale may
-be obtained by using \fB\-locale\fR \fBcurrent\fR.
+be obtained by using \fB\-locale current\fR.
 In addition, some platforms support a \fBsystem\fR locale that
 reflects the user's current choices.  For instance, on Windows, the
 format that the user has selected from dates and times in the Control
 Panel can be obtained by using the \fBsystem\fR locale.  On
 platforms that do not define a user selection of date and time formats
-separate from \fBLC_TIME\fR, \fB\-locale\fR \fBsystem\fR is
-synonymous with \fB\-locale\fR \fBcurrent\fR.
+separate from \fBLC_TIME\fR, \fB\-locale system\fR is
+synonymous with \fB\-locale current\fR.
 .SH "SCANNING TIMES"
+.PP
 The \fBclock scan\fR command accepts times that are formatted as
 strings and converts them to counts of seconds from the epoch time
 of 1 January 1970, 00:00 UTC.  It normally takes a \fB\-format\fR
@@ -337,8 +389,8 @@ and their interpretation, are described under \fBFORMAT GROUPS\fR.
 .PP
 If a \fB\-timezone\fR option is present, the following
 argument is a string that specifies the time zone in which the date and time
-are to be interpreted.  As an alternative to \fB\-timezone\fR \fI:UTC\fR,
-the obsolete usage \fB\-gmt\fR \fItrue\fR may be used.  See
+are to be interpreted.  As an alternative to \fB\-timezone\fI :UTC\fR,
+the obsolete usage \fB\-gmt\fI true\fR may be used.  See
 \fBTIME ZONES\fR for the permissible variants for the time zone.
 .PP
 If a \fB\-locale\fR option is present, the following argument is
@@ -346,14 +398,14 @@ a string that specifies the locale in which the time is to be interpreted,
 in the same format that is used for the \fBmsgcat\fR package.  Note
 that the default, if \fB\-locale\fR is not specified, is the root locale
 \fB{}\fR rather than the current locale.  The current locale may
-be obtained by using \fB\-locale\fR \fBcurrent\fR.
+be obtained by using \fB\-locale current\fR.
 In addition, some platforms support a \fBsystem\fR locale that
 reflects the user's current choices.  For instance, on Windows, the
 format that the user has selected from dates and times in the Control
 Panel can be obtained by using the \fBsystem\fR locale.  On
 platforms that do not define a user selection of date and time formats
-separate from \fBLC_TIME\fR, \fB\-locale\fR \fBsystem\fR is
-synonymous with \fB\-locale\fR \fBcurrent\fR.
+separate from \fBLC_TIME\fR, \fB\-locale system\fR is
+synonymous with \fB\-locale current\fR.
 .PP
 If a \fB\-base\fR option is present, the following argument is
 a time (expressed in seconds from the epoch time) that is used as
@@ -379,8 +431,12 @@ preprocessed format string.  In order of preference:
 If the string contains a \fB%s\fR format group, representing
 seconds from the epoch, that group is used to determine the date.
 .IP [2]
-If the string contains a \fB%J\fR format group, representing
-the Julian Day Number, that group is used to determine the date.
+If the string contains a \fB%J\fR, \fB%EJ\fR or \fB%Ej\fR format groups,
+representing the Calendar or Astronomical Julian Day Number, that groups
+are used to determine the date.
+Note, that in case of \fB%EJ\fR or \fB%Ej\fR format groups, representing
+the Julian Date with time fraction, this groups may be used to determine
+the date and time.
 .IP [3]
 If the string contains a complete set of format groups specifying
 century, year, month, and day of month; century, year, and day of year;
@@ -443,72 +499,76 @@ If this situation occurs, the first occurrence of the time is chosen.
 (For this reason, it is wise to have the input string contain the
 time zone when converting local times.  This caveat does not apply to
 UTC times.)
+.PP
+If the interpretation of the groups yields an impossible time because
+a field is out of range, an exception is raised if the \fB-validate\fR
+option is not present or passed as true. If passed as false,
+enough of that field's unit will be added to
+or subtracted from the time to bring it in range. Thus, if attempting to
+scan or format day 0 of the month, one day will be subtracted from day
+1 of the month, yielding the last day of the previous month.
+.PP
+If the interpretation of the groups yields an impossible time because
+a Daylight Saving Time change skips over that time, or an ambiguous
+time because a Daylight Saving Time change skips back so that the clock
+observes the given time twice, and no time zone specifier (\fB%z\fR
+or \fB%Z\fR) is present in the format, the time is interpreted as
+if the clock had not changed.
 .SH "FORMAT GROUPS"
+.PP
 The following format groups are recognized by the \fBclock scan\fR and
 \fBclock format\fR commands.
-.TP
-\fB%a\fR
-On output, produces an abbreviation (\fIe.g.,\fR \fBMon\fR) for the day
+.IP \fB%a\fR
+On output, produces an abbreviation (\fIe.g., \fBMon\fR) for the day
 of the week in the given locale.  On input, matches the name of the day
 of the week in the given locale (in either abbreviated or full form, or
 any unique prefix of either form).
-.TP
-\fB%A\fR
-On output, produces the full name (\fIe.g.,\fR \fBMonday\fR) of the day
+.IP \fB%A\fR
+On output, produces the full name (\fIe.g., \fBMonday\fR) of the day
 of the week in the given locale.  On input, matches the name of the day
 of the week in the given locale (in either abbreviated or full form, or
 any unique prefix of either form).
-.TP
-\fB%b\fR
-On output, produces an abbreviation (\fIe.g.,\fR \fBJan\fR) for the name
+.IP \fB%b\fR
+On output, produces an abbreviation (\fIe.g., \fBJan\fR) for the name
 of the month in the given locale.  On input, matches the name of the month
 in the given locale (in either abbreviated or full form, or
 any unique prefix of either form).
-.TP
-\fB%B\fR
-On output, produces the full name (\fIe.g.,\fR \fBJanuary\fR)
+.IP \fB%B\fR
+On output, produces the full name (\fIe.g., \fBJanuary\fR)
 of the month in the given locale.  On input, matches the name of the month
 in the given locale (in either abbreviated or full form, or
 any unique prefix of either form).
-.TP
-\fB%c\fR
+.IP \fB%c\fR
 On output, produces a localized representation of date and time of day;
 the localized representation is expected to use the Gregorian calendar.
 On input, matches whatever \fB%c\fR produces.
-.TP
-\fB%C\fR
+.IP \fB%C\fR
 On output, produces the number of the century in Indo-Arabic numerals.
 On input, matches one or two digits, possibly with leading whitespace,
 that are expected to be the number of the century.
-.TP
-\fB%d\fR
+.IP \fB%d\fR
 On output, produces the number of the day of the month, as two decimal
 digits.  On input, matches one or two digits, possibly with leading
 whitespace, that are expected to be the number of the day of the month.
-.TP
-\fB%D\fR
+.IP \fB%D\fR
 This format group is synonymous with \fB%m/%d/%Y\fR.  It should be
 used only in exchanging data within the \fBen_US\fR locale, since
 other locales typically do not use this order for the fields of the date.
-.TP
-\fB%e\fR
+.IP \fB%e\fR
 On output, produces the number of the day of the month, as one or
 two decimal digits (with a leading blank for one-digit dates).
 On input, matches one or two digits, possibly with leading
 whitespace, that are expected to be the number of the day of the month.
-.TP
-\fB%Ec\fR
+.IP \fB%Ec\fR
 On output, produces a locale-dependent representation of the date and
 time of day in the locale's alternative calendar.  On input, matches
 whatever \fB%Ec\fR produces.  The locale's alternative calendar need not
 be the Gregorian calendar.
-.TP
-\fB%EC\fR
+.IP \fB%EC\fR
 On output, produces a locale-dependent name of an era in the locale's
 alternative calendar.  On input, matches the name of the era or any
 unique prefix.
-.TP
-\fB%EE\fR
+.IP \fB%EE\fR
 On output, produces the string \fBB.C.E.\fR or \fBC.E.\fR, or a
 string of the same meaning in the locale, to indicate whether \fB%Y\fR refers
 to years before or after Year 1 of the Common Era.  On input, accepts
@@ -516,224 +576,216 @@ the string \fBB.C.E.\fR, \fBB.C.\fR, \fBC.E.\fR, \fBA.D.\fR, or the
 abbreviation appropriate to the current locale, and uses it to fix
 whether \fB%Y\fR refers to years before or after Year 1 of the
 Common Era.
-.TP
-\fB%Ex\fR
+.IP \fB%Ej\fR
+On output, produces a string of digits giving the Astronomical Julian Date or
+Astronomical Julian Day Number (JDN/JD). In opposite to calendar julian day
+\fB%J\fR, it starts the day at noon.
+On input, accepts a string of digits (or floating point with the time fraction)
+and interprets it as an Astronomical Julian Day Number (JDN/JD).
+The Astronomical Julian Date is a count of the number of calendar days
+that have elapsed since 1 January, 4713 BCE of the proleptic
+Julian calendar, which contains also the time fraction (after floating point).
+The epoch time of 1 January 1970 corresponds to Astronomical JDN 2440587.5.
+This value corresponds the julian day used in sqlite-database, and is the same
+as result of \fBselect julianday(:seconds, 'unixepoch')\fR.
+.IP \fB%EJ\fR
+On output, produces a string of digits giving the Calendar Julian Date.
+In opposite to julian day \fB%J\fR format group, it produces float number.
+In opposite to astronomical julian day \fB%Ej\fR group, it starts at midnight.
+On input, accepts a string of digits (or floating point with the time fraction)
+and interprets it as a Calendar Julian Day Number.
+The Calendar Julian Date is a count of the number of calendar days
+that have elapsed since 1 January, 4713 BCE of the proleptic
+Julian calendar, which contains also the time fraction (after floating point).
+The epoch time of 1 January 1970 corresponds to Astronomical JDN 2440588.
+.IP \fB%Es\fR
+This affects similar to \fB%s\fR, but in opposition to \fB%s\fR it parses
+or formats local seconds (not the posix seconds).
+Because \fB%s\fR has the same precedence as \fB%s\fR (uniquely determines
+a point in time), it overrides all other input formats.
+.IP \fB%Ex\fR
 On output, produces a locale-dependent representation of the date
 in the locale's alternative calendar.  On input, matches
 whatever \fB%Ex\fR produces.  The locale's alternative calendar need not
 be the Gregorian calendar.
-.TP
-\fB%EX\fR
+.IP \fB%EX\fR
 On output, produces a locale-dependent representation of the
 time of day in the locale's alternative numerals.  On input, matches
 whatever \fB%EX\fR produces.
-.TP
-\fB%Ey\fR
+.IP \fB%Ey\fR
 On output, produces a locale-dependent number of the year of the era
 in the locale's alternative calendar and numerals.  On input, matches
 such a number.
-.TP
-\fB%EY\fR
+.IP \fB%EY\fR
 On output, produces a representation of the year in the locale's
 alternative calendar and numerals.  On input, matches what \fB%EY\fR
 produces.  Often synonymous with \fB%EC%Ey\fR.
-.TP
-\fB%g\fR
+.IP \fB%g\fR
 On output, produces a two-digit year number suitable for use with
 the week-based ISO8601 calendar; that is, the year number corresponds
 to the week number produced by \fB%V\fR.  On input, accepts such
 a two-digit year number, possibly with leading whitespace.
-.TP
-\fB%G\fR
+.IP \fB%G\fR
 On output, produces a four-digit year number suitable for use with
 the week-based ISO8601 calendar; that is, the year number corresponds
 to the week number produced by \fB%V\fR.  On input, accepts such
 a four-digit year number, possibly with leading whitespace.
-.TP
-\fB%h\fR
+.IP \fB%h\fR
 This format group is synonymous with \fB%b\fR.
-.TP
-\fB%H\fR
+.IP \fB%H\fR
 On output, produces a two-digit number giving the hour of the day
 (00-23) on a 24-hour clock.  On input, accepts such a number.
-.TP
-\fB%I\fR
+.IP \fB%I\fR
 On output, produces a two-digit number giving the hour of the day
 (12-11) on a 12-hour clock.  On input, accepts such a number.
-.TP
-\fB%j\fR
+.IP \fB%j\fR
 On output, produces a three-digit number giving the day of the year
 (001-366).  On input, accepts such a number.
-.TP
-\fB%J\fR
+.IP \fB%J\fR
 On output, produces a string of digits giving the Julian Day Number.
 On input, accepts a string of digits and interprets it as a Julian Day Number.
 The Julian Day Number is a count of the number of calendar days
 that have elapsed since 1 January, 4713 BCE of the proleptic
 Julian calendar.  The epoch time of 1 January 1970 corresponds
 to Julian Day Number 2440588.
-.TP
-\fB%k\fR
+.IP \fB%k\fR
 On output, produces a one- or two-digit number giving the hour of the day
 (0-23) on a 24-hour clock.  On input, accepts such a number.
-.TP
-\fB%l\fR
+.IP \fB%l\fR
 On output, produces a one- or two-digit number giving the hour of the day
 (12-11) on a 12-hour clock.  On input, accepts such a number.
-.TP
-\fB%m\fR
+.IP \fB%m\fR
 On output, produces the number of the month (01-12) with exactly two
 digits.  On input, accepts two digits and interprets them as the number
 of the month.
-.TP
-\fB%M\fR
+.IP \fB%M\fR
 On output, produces the number of the minute of the hour (00-59)
 with exactly two digits.  On input, accepts two digits and interprets them
 as the number of the minute of the hour.
-.TP
-\fB%N\fR
+.IP \fB%N\fR
 On output, produces the number of the month (1-12) with one or two digits,
 and a leading blank for one-digit dates.
 On input, accepts one or two digits, possibly with leading whitespace,
 and interprets them as the number of the month.
-.TP
-\fB%Od\fR, \fB%Oe\fR, \fB%OH\fR, \fB%OI\fR, \fB%Ok\fR, \fB%Ol\fR, \fB%Om\fR, \fB%OM\fR, \fB%OS\fR, \fB%Ou\fR, \fB%Ow\fR, \fB%Oy\fR
+.IP "\fB%Od\fR, \fB%Oe\fR, \fB%OH\fR, \fB%OI\fR, \fB%Ok\fR, \fB%Ol\fR, \fB%Om\fR, \fB%OM\fR, \fB%OS\fR, \fB%Ou\fR, \fB%Ow\fR, \fB%Oy\fR"
 All of these format groups are synonymous with their counterparts
 without the
 .QW \fBO\fR ,
 except that the string is produced and parsed in the
 locale-dependent alternative numerals.
-.TP
-\fB%p\fR
+.IP \fB%p\fR
 On output, produces an indicator for the part of the day, \fBAM\fR
 or \fBPM\fR, appropriate to the given locale.  If the script of the
 given locale supports multiple letterforms, lowercase is preferred.
 On input, matches the representation \fBAM\fR or \fBPM\fR in
 the given locale, in either case.
-.TP
-\fB%P\fR
+.IP \fB%P\fR
 On output, produces an indicator for the part of the day, \fBam\fR
 or \fBpm\fR, appropriate to the given locale.  If the script of the
 given locale supports multiple letterforms, uppercase is preferred.
 On input, matches the representation \fBAM\fR or \fBPM\fR in
 the given locale, in either case.
-.TP
-\fB%Q\fR
+.IP \fB%Q\fR
 This format group is reserved for internal use within the Tcl library.
-.TP
-\fB%r\fR
+.\" It's the STARDATE! We're so Enterprise-ready...
+.IP \fB%r\fR
 On output, produces a locale-dependent time of day representation on a
 12-hour clock. On input, accepts whatever \fB%r\fR produces.
-.TP
-\fB%R\fR
+.IP \fB%R\fR
 On output, the time in 24-hour notation (%H:%M). For a version
 including the seconds, see \fB%T\fR below. On input, accepts whatever
 \fB%R\fR produces.
-.TP
-\fB%s\fR
+.IP \fB%s\fR
 On output, simply formats the \fItimeVal\fR argument as a decimal
 integer and inserts it into the output string.  On input, accepts
 a decimal integer and uses is as the time value without any further
 processing. Since \fB%s\fR uniquely determines a point in time, it
 overrides all other input formats.
-.TP
-\fB%S\fR
+.IP \fB%S\fR
 On output, produces a two-digit number of the second of the minute
 (00-59). On input, accepts two digits and uses them as the second of the
 minute.
-.TP
-\fB%t\fR
+.IP \fB%t\fR
 On output, produces a TAB character. On input, matches a TAB character.
-.TP
-\fB%T\fR
+.IP \fB%T\fR
 Synonymous with \fB%H:%M:%S\fR.
-.TP
-\fB%u\fR
+.IP \fB%u\fR
 On output, produces the number of the day of the week
 (\fB1\fR\(->Monday, \fB7\fR\(->Sunday). On input, accepts a single digit and
 interprets it as the day of the week. Sunday may be either \fB0\fR or
 \fB7\fR.
-.TP
-\fB%U\fR
+.IP \fB%U\fR
 On output, produces the ordinal number of the week of the year
 (00-53). The first Sunday of the year is the first day of week 01. On
 input accepts two digits which are otherwise ignored. This format
 group is never used in determining an input date.  This interpretation
 of the week of the year was once common in US banking but is now
 largely obsolete.  See \fB%V\fR for the ISO8601 week number.
-.TP
-\fB%V\fR
+.IP \fB%V\fR
 On output, produces the number of the ISO8601 week as a two digit
 number (01-53). Week 01 is the week containing January 4; or the first
 week of the year containing at least 4 days; or the week containing
 the first Thursday of the year (the three statements are
 equivalent). Each week begins on a Monday. On input, accepts the
 ISO8601 week number.
-.TP
-\fB%w\fR
+.IP \fB%w\fR
 On output, produces the ordinal number of the day of the week
 (Sunday==0; Saturday==6).  On input, accepts a single digit and
 interprets it as the day of the week; Sunday may be represented as
 either 0 or 7.  Note that \fB%w\fR is not the ISO8601 weekday number,
 which is produced and accepted by \fB%u\fR.
-.TP
-\fB%W\fR
+.IP \fB%W\fR
 On output, produces a week number (00-53) within the year; week 01
 begins on the first Monday of the year. On input, accepts two digits,
 which are otherwise ignored. This format group is never used in
 determining an input date.  It is not the ISO8601 week number; that
 week is produced and accepted by \fB%V\fR.
-.TP
-\fB%x\fR
+.IP \fB%x\fR
 On output, produces the date in a locale-dependent representation. On
 input, accepts whatever \fB%x\fR produces and is used to determine
 calendar date.
-.TP
-\fB%X\fR
+.IP \fB%X\fR
 On output, produces the time of day in a locale-dependent
 representation. On input, accepts whatever \fB%X\fR produces and is used
 to determine time of day.
-.TP
-\fB%y\fR
+.IP \fB%y\fR
 On output, produces the two-digit year of the century. On input,
 accepts two digits, and is used to determine calendar date. The
 date is presumed to lie between 1938 and 2037 inclusive. Note
 that \fB%y\fR does not yield a year appropriate for use with the ISO8601
 week number \fB%V\fR; programs should use \fB%g\fR for that purpose.
-.TP
-\fB%Y\fR
+.IP \fB%Y\fR
 On output, produces the four-digit calendar year. On input,
 accepts four digits and may be used to determine calendar date. Note
 that \fB%Y\fR does not yield a year appropriate for use with the ISO8601
 week number \fB%V\fR; programs should use \fB%G\fR for that purpose.
-.TP
-\fB%z\fR
+.IP \fB%z\fR
 On output, produces the current time zone, expressed in hours and
 minutes east (+hhmm) or west (\-hhmm) of Greenwich. On input, accepts a
 time zone specifier (see \fBTIME ZONES\fR below) that will be used to
-determine the time zone.
-.TP
-\fB%Z\fR
+determine the time zone (this token is optionally applicable on input,
+so the value is not mandatory and can be missing in input).
+.IP \fB%Z\fR
 On output, produces the current time zone's name, possibly
 translated to the given locale. On input, accepts a time zone
 specifier (see \fBTIME ZONES\fR below) that will be used to determine the
-time zone. This option should, in general, be used on input only when
+time zone (token is also like \fB%z\fR optionally applicable on input).
+This option should, in general, be used on input only when
 parsing RFC822 dates. Other uses are fraught with ambiguity; for
 instance, the string \fBBST\fR may represent British Summer Time or
 Brazilian Standard Time. It is recommended that date/time strings for
 use by computers use numeric time zones instead.
-.TP
-\fB%%\fR
+.IP \fB%%\fR
 On output, produces a literal
 .QW \fB%\fR
 character. On input, matches a literal
 .QW \fB%\fR
 character.
-.TP
-\fB%+\fR
+.IP \fB%+\fR
 Synonymous with
 .QW "\fB%a %b %e %H:%M:%S %Z %Y\fR" .
 .SH "TIME ZONES"
+.PP
 When the \fBclock\fR command is processing a local time, it has several
 possible sources for the time zone to use.  In order of preference, they
 are:
@@ -742,7 +794,7 @@ A time zone specified inside a string being parsed and matched by a \fB%z\fR
 or \fB%Z\fR format group.
 .IP [2]
 A time zone specified with the \fB\-timezone\fR option to the \fBclock\fR
-command (or, equivalently, by \fB\-gmt\fR \fB1\fR).
+command (or, equivalently, by \fB\-gmt 1\fR).
 .IP [3]
 A time zone specified in an environment variable \fBTCL_TZ\fR.
 .IP [4]
@@ -755,6 +807,7 @@ The C library's idea of the local time zone, as defined by the
 .PP
 In case [1] \fIonly,\fR the string is tested to see if it is one
 of the strings:
+.PP
 .CS
  gmt     ut      utc     bst     wet     wat     at
  nft     nst     ndt     ast     adt     est     edt
@@ -766,6 +819,7 @@ of the strings:
  cadt    east    eadt    gst     nzt     nzst    nzdt
  idle
 .CE
+.PP
 If it is a string in the above list, it designates a known
 time zone, and is interpreted as such.
 .PP
@@ -778,7 +832,7 @@ that give the rules for various locales.  A complete list
 of the location names is too lengthy to be listed here.
 On most Tcl installations, the definitions of the locations
 are to be found in named files in the directory
-.QW "\fI/no_backup/tools/lib/tcl8.5/clock/tzdata\fR" .
+.QW "\fI/no_backup/tools/lib/tcl9.0/clock/tzdata\fR" .
 On some Unix systems, these files are omitted, and the definitions are
 instead obtained from system files in
 .QW "\fI/usr/share/zoneinfo\fR" ,
@@ -797,18 +851,38 @@ the minus sign one west of Greenwich.
 A time zone string conforming to the Posix specification of the \fBTZ\fR
 environment variable will be recognized.  The specification
 may be found at
-\fIhttp://www.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap08.html\fR.
+\fIhttps://pubs.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap08.html\fR.
+.PP
+If the Posix time zone string contains a DST (Daylight Savings Time)
+part, but doesn't contain a rule stating when DST starts or ends,
+then default rules are used. For Timezones with an offset between 0
+and +12, the current European/Russian rules are used, otherwise the
+current US rules are used. In Europe (offset +0 to +2) the switch
+to summertime is done each last Sunday in March at 1:00 GMT, and
+the switch back is each last Sunday in October at 2:00 GMT. In
+Russia (offset +3 to +12), the switch dates are the same, only
+the switch to summertime is at 2:00 local time, and the switch
+back is at 3:00 local time in all time zones. The US switch to
+summertime takes place each second Sunday in March at 2:00 local
+time, and the switch back is each first Sunday in November at
+3:00 local time. These default rules mean that in all European,
+Russian and US (or compatible) time zones, DST calculations will
+be correct for dates in 2007 and later, unless in the future the
+rules change again.
 .PP
 Any other time zone string is processed by prefixing a colon and attempting
 to use it as a location name, as above.
 .SH "LOCALIZATION"
+.PP
 Developers wishing to localize the date and time formatting and parsing
-are referred to \fIhttp://tip.tcl.tk/173\fR for a
+are referred to \fIhttps://tip.tcl-lang.org/173\fR for a
 specification.
 .SH "FREE FORM SCAN"
+.PP
 If the \fBclock scan\fR command is invoked without a \fB\-format\fR
-option, then it requests a \fIfree-form scan.\fR  \fI
-This form of scan is deprecated.\fR  The reason for the deprecation
+option, then it requests a \fIfree-form scan\fR.
+\fIThis form of scan is deprecated.\fR
+The reason for the deprecation
 is that there are too many ambiguities. (Does the string
 .QW 2000
 represent a year, a time of day, or a quantity?)  No set of rules
@@ -841,40 +915,50 @@ The \fIinputString\fR argument consists of zero or more specifications of the
 following form:
 .TP
 \fItime\fR
-A time of day, which is of the form: \fBhh?:mm?:ss?? ?meridian? ?zone?\fR
-or \fBhhmm ?meridian? ?zone?\fR
-If no meridian is specified, \fBhh\fR is interpreted on
-a 24-hour clock.
+.
+A time of day, which is of the form:
+.QW "\fIhh\fR?\fB:\fImm\fR?\fB:\fIss\fR?? ?\fImeridian\fR? ?\fIzone\fR?"
+or
+.QW "\fBhhmm \fR?\fBmeridian\fR? ?\fBzone\fR?" .
+If no \fImeridian\fR is specified, \fIhh\fR is interpreted on
+a 24-hour clock. The "24:00" and "24:00:00" formats (with or without
+colon) are supported only if no \fImeridian\fR is specified.
 .TP
 \fIdate\fR
+.
 A specific month and day with optional year.  The
 acceptable formats are
-.QW "\fBmm/dd\fR?\fB/yy\fR?" ,
-.QW "\fBmonthname dd\fR?\fB, yy\fR?" ,
-.QW "\fBday, dd monthname \fR?\fByy\fR?" ,
-.QW "\fBdd monthname yy\fR" ,
-.QW "?\fBCC\fR?\fByymmdd\fR" ,
+.QW "\fImm\fB/\fIdd\fR?\fB/\fIyy\fR?" ,
+.QW "\fImonthname dd\fR?\fB, \fIyy\fR?" ,
+.QW "\fIday\fB, \fIdd monthname \fR?\fIyy\fR?" ,
+.QW "\fIdd monthname yy\fR" ,
+.QW "?\fICC\fR?\fIyymmdd\fR" ,
 and
-.QW "\fBdd-monthname-\fR?\fBCC\fR?\fByy\fR" .
+.QW "\fIdd\fB-\fImonthname\fB-\fR?\fICC\fR?\fIyy\fR" .
 The default year is the current year.  If the year is less
 than 100, we treat the years 00-68 as 2000-2068 and the years 69-99
 as 1969-1999.  Not all platforms can represent the years 38-70, so
 an error may result if these years are used.
 .TP
 \fIISO 8601 point-in-time\fR
+.
 An ISO 8601 point-in-time specification, such as
-.QW \fICCyymmdd\fBT\fIhhmmss\fR,
+.QW "\fICCyymmdd\fBT\fIhhmmss\fR" ,
 where \fBT\fR is the literal
 .QW T ,
 .QW "\fICCyymmdd hhmmss\fR" ,
+.QW "\fICCyymmdd\fBT\fIhh:mm:ss\fR" ,
 or
-.QW \fICCyymmdd\fBT\fIhh:mm:ss\fR .
-Note that only these three formats are accepted.
+.QW "\fICCyy-mm-dd\fBT\fIhh:mm:ss\fR" .
+Note that only these four formats are accepted.
 The command does \fInot\fR accept the full range of point-in-time
-specifications specified in ISO8601.  Other formats can be recognized by
-giving an explicit \fI\-format\fR option to the \fBclock scan\fR command.
+specifications specified in ISO8601.  For example, leap seconds are
+not supported. The "24:00" and "24:00:00" formats (with or without
+colon) are supported.  Other formats can be recognized by
+giving an explicit \fB\-format\fR option to the \fBclock scan\fR command.
 .TP
 \fIrelative time\fR
+.
 A specification relative to the current time.  The format is \fBnumber
 unit\fR. Acceptable units are \fByear\fR, \fBfortnight\fR,
 \fBmonth\fR, \fBweek\fR, \fBday\fR,
@@ -894,9 +978,30 @@ used.  Finally, a correction is applied so that the correct hour of
 the day is produced after allowing for daylight savings time
 differences and the correct date is given when going from the end
 of a long month to a short month.
+.PP
+The precedence of the applying of single tokens resp. which sequence will be
+used by calculating of the time is complex, e. g. heavily dependent on the
+precision of type of the token.
+.sp
+In example below the second date-string contains "next January", therefore
+it results in next year but in January. And third date-string besides "January"
+contains also additionally "Fri", so it results in the nearest Friday.
+Thus both win before "385 days" resp. make it more precise, because of higher
+precision of this token types.
+.CS
+% clock format [clock scan "5 years 18 months 385 days" -base 0 -gmt 1] -gmt 1
+Thu Jul 21 00:00:00 GMT 1977
+% clock format [clock scan "5 years 18 months 385 days next January" -base 0 -gmt 1] -gmt 1
+Sat Jan 21 00:00:00 GMT 1978
+% clock format [clock scan "5 years 18 months 385 days next January Fri" -base 0 -gmt 1] -gmt 1
+Fri Jan 27 00:00:00 GMT 1978
+.CE
 .SH "SEE ALSO"
 msgcat(n)
 .SH KEYWORDS
 clock, date, time
 .SH "COPYRIGHT"
-Copyright (c) 2004 Kevin B. Kenny <kennykb@acm.org>. All rights reserved.
+Copyright \(co 2004 Kevin B. Kenny <kennykb@acm.org>. All rights reserved.
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/close.n b/doc/close.n
index 639fddb..eecc48f 100644
--- a/doc/close.n
+++ b/doc/close.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH close n 7.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,66 +12,15 @@
 .SH NAME
 close \- Close an open channel
 .SH SYNOPSIS
-\fBclose \fIchannelId\fR
+\fBclose \fIchannel\fR ?\fBr\fR(\fBead\fR)|\fBw\fR(\fBrite\fR)?
 .BE
-
 .SH DESCRIPTION
 .PP
-Closes the channel given by \fIchannelId\fR.
-.PP
-\fIChannelId\fR must be an identifier for an open channel such as a
-Tcl standard channel (\fBstdin\fR, \fBstdout\fR, or \fBstderr\fR),
-the return value from an invocation of \fBopen\fR or \fBsocket\fR, or
-the result of a channel creation command provided by a Tcl extension.
-.PP
-All buffered output is flushed to the channel's output device,
-any buffered input is discarded, the underlying file or device is closed,
-and \fIchannelId\fR becomes unavailable for use.
-.PP
-If the channel is blocking, the command does not return until all output
-is flushed.
-If the channel is nonblocking and there is unflushed output, the
-channel remains open and the command
-returns immediately; output will be flushed in the background and the
-channel will be closed when all the flushing is complete.
-.PP
-If \fIchannelId\fR is a blocking channel for a command pipeline then
-\fBclose\fR waits for the child processes to complete.
-.PP
-If the channel is shared between interpreters, then \fBclose\fR
-makes \fIchannelId\fR unavailable in the invoking interpreter but has no
-other effect until all of the sharing interpreters have closed the
-channel.
-When the last interpreter in which the channel is registered invokes
-\fBclose\fR, the cleanup actions described above occur. See the
-\fBinterp\fR command for a description of channel sharing.
-.PP
-Channels are automatically closed when an interpreter is destroyed and
-when the process exits.  Channels are switched to blocking mode, to ensure
-that all output is correctly flushed before the process exits.
-.PP
-The command returns an empty string, and may generate an error if
-an error occurs while flushing output.  If a command in a command
-pipeline created with \fBopen\fR returns an error, \fBclose\fR
-generates an error (similar to the \fBexec\fR command.)
-.SH EXAMPLE
-This illustrates how you can use Tcl to ensure that files get closed
-even when errors happen by combining \fBcatch\fR, \fBclose\fR and
-\fBreturn\fR:
-.CS
-proc withOpenFile {filename channelVar script} {
-    upvar 1 $channelVar chan
-    set chan [open $filename]
-    catch {
-        uplevel 1 $script
-    } result options
-    \fBclose\fR $chan
-    return -options $options $result
-}
-.CE
-
+The \fBclose\fR command has been superceded by the \fBchan close\fR
+command which supports the same syntax and options.
 .SH "SEE ALSO"
-file(n), open(n), socket(n), eof(n), Tcl_StandardChannels(3)
-
-.SH KEYWORDS
-blocking, channel, close, nonblocking
+chan(n)
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/concat.n b/doc/concat.n
index f68a06e..6fb16df 100644
--- a/doc/concat.n
+++ b/doc/concat.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH concat n 8.3 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,13 +12,12 @@
 .SH NAME
 concat \- Join lists together
 .SH SYNOPSIS
-\fBconcat\fI \fR?\fIarg arg ...\fR?
+\fBconcat\fR ?\fIarg arg ...\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 This command joins each of its arguments together with spaces after
-trimming leading and trailing white-space from each of them.  If all the
+trimming leading and trailing white-space from each of them.  If all of the
 arguments are lists, this has the same effect as concatenating them
 into a single list.
 Arguments that are empty (after trimming) are ignored entirely.
@@ -29,7 +28,7 @@ Although \fBconcat\fR will concatenate lists, flattening them in the process
 (so giving the following interactive session):
 .PP
 .CS
-\fI%\fR \fBconcat\fR a b {c d e} {f {g h}}
+\fI% \fBconcat\fR a b {c d e} {f {g h}}
 \fIa b c d e f {g h}\fR
 .CE
 .PP
@@ -37,7 +36,7 @@ it will also concatenate things that are not lists, as can be seen from this
 session:
 .PP
 .CS
-\fI%\fR \fBconcat\fR " a b {c   " d "  e} f"
+\fI% \fBconcat\fR " a b {c   " d "  e} f"
 \fIa b {c d e} f\fR
 .CE
 .PP
@@ -45,13 +44,24 @@ Note also that the concatenation does not remove spaces from the middle of
 values, as can be seen here:
 .PP
 .CS
-\fI%\fR \fBconcat\fR "a   b   c" { d e f }
+\fI% \fBconcat\fR "a   b   c" { d e f }
 \fIa   b   c d e f\fR
 .CE
 .PP
 (i.e., there are three spaces between each of the \fBa\fR, the \fBb\fR and the
 \fBc\fR).
+.PP
+For \fItrue\fR list concatenation, the \fBlist\fR command should be used with
+expansion of each input list:
+.PP
+.CS
+\fI% \fRlist {*}"a   b   c" {*}{ d e f }
+\fIa b c d e f\fR
+.CE
 .SH "SEE ALSO"
-append(n), eval(n), join(n)
+append(n), eval(n), join(n), list(n)
 .SH KEYWORDS
-concatenate, join, lists
+concatenate, join, list
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/configurable.n b/doc/configurable.n
new file mode 100644
index 0000000..d2e6b18
--- /dev/null
+++ b/doc/configurable.n
@@ -0,0 +1,345 @@
+'\"
+'\" Copyright (c) 2019 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH configurable n 0.4 TclOO "TclOO Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+oo::configurable, configure, property \- class that makes configurable classes and objects, and supports making configurable properties
+.SH SYNOPSIS
+.nf
+package require TclOO
+
+\fBoo::configurable create \fIclass\fR ?\fIdefinitionScript\fR?
+
+\fBoo::define \fIclass\fB {\fR
+    \fBproperty \fIpropName\fR ?\fIoptions...\fR? ?\fIpropName\fR ?\fIoptions...\fR?...?
+\fB}\fR
+
+\fBoo::objdefine \fIobject\fB {\fR
+    \fBproperty \fIpropName\fR ?\fIoptions...\fR? ?\fIpropName\fR ?\fIoptions...\fR?...?
+\fB}\fR
+
+\fIobjectName \fBconfigure\fR
+\fIobjectName \fBconfigure\fI \-prop\fR
+\fIobjectName \fBconfigure\fI \-prop value\fR ?\fI\-prop value\fR...
+.fi
+.SH "CLASS HIERARCHY"
+.nf
+\fBoo::object\fR
+   \(-> \fBoo::class\fR
+       \(-> \fBoo::configurable\fR
+
+\fBoo::object\fR
+   \(-> \fBoo::class\fR
+       \(-> \fBoo::configurablesupport::configurable\fR
+.fi
+.BE
+.SH DESCRIPTION
+.PP
+Configurable objects are objects that support being configured with a
+\fBconfigure\fR method. Each of the configurable entities of the object is
+known as a property of the object. Properties may be defined on classes or
+instances; when configuring an object, any of the properties defined by its
+classes (direct or indirect) or by the instance itself may be configured.
+.PP
+The \fBoo::configurable\fR metaclass installs basic support for making
+configurable objects into a class. This consists of making a \fBproperty\fR
+definition command available in definition scripts for the class and instances
+(e.g., from the class's constructor, within \fBoo::define\fR and within
+\fBoo::objdefine\fR) and making a \fBconfigure\fR method available within the
+instances.
+.SS "CONFIGURE METHOD"
+.\" METHOD: configure
+.PP
+The behavior of the \fBconfigure\fR method is modelled after the
+\fBfconfigure\fR/\fBchan configure\fR command.
+.PP
+If passed no additional arguments, the \fBconfigure\fR method returns an
+alphabetically sorted dictionary of all \fIreadable\fR and \fIread-write\fR
+properties and their current values.
+.PP
+If passed a single additional argument, that argument to the \fBconfigure\fR
+method must be the name of a property to read (or an unambiguous prefix
+thereof); its value is returned.
+.PP
+Otherwise, if passed an even number of arguments then each pair of arguments
+specifies a property name (or an unambiguous prefix thereof) and the value to
+set it to. The properties will be set in the order specified, including
+duplicates. If the setting of any property fails, the overall \fBconfigure\fR
+method fails, the preceding pairs (if any) will continue to have been applied,
+and the succeeding pairs (if any) will be not applied. On success, the result
+of the \fBconfigure\fR method in this mode operation will be an empty string.
+.SS "PROPERTY DEFINITIONS"
+.\" COMMAND: property
+.PP
+When a class has been manufactured by the \fBoo::configurable\fR metaclass (or
+one of its subclasses), it gains an extra definition, \fBproperty\fR. The
+\fBproperty\fR definition defines one or more properties that will be exposed
+by the class's instances.
+.PP
+The \fBproperty\fR command takes the name of a property to define first,
+\fIwithout a leading hyphen\fR, followed by a number of option-value pairs
+that modify the basic behavior of the property. This can then be followed by
+an arbitrary number of other property definitions. The supported options are:
+.\" OPTION: -get
+.TP
+\fB\-get \fIgetterScript\fR
+.
+This defines the implementation of how to read from the property; the
+\fIgetterScript\fR will become the body of a method (taking no arguments)
+defined on the class, if the kind of the property is such that the property
+can be read from. The method will be named
+\fB<ReadProp-\fIpropertyName\fB>\fR, and will default to being a simple read
+of the instance variable with the same name as the property (e.g.,
+.QW "\fBproperty\fR xyz"
+will result in a method
+.QW <ReadProp-xyz>
+being created).
+.\" OPTION: -kind
+.TP
+\fB\-kind \fIpropertyKind\fR
+.
+This defines what sort of property is being created. The \fIpropertyKind\fR
+must be exactly one of \fBreadable\fR, \fBwritable\fR, or \fBreadwrite\fR
+(which is the default) which will make the property read-only, write-only or
+read-write, respectively.  Read-only properties can only ever be read from,
+write-only properties can only ever be written to, and read-write properties
+can be both read and written.
+.RS
+.PP
+Note that write-only properties are not particularly discoverable as they are
+never reported by the \fBconfigure\fR method other than by error messages when
+attempting to write to a property that does not exist.
+.RE
+.\" OPTION: -set
+.TP
+\fB\-set \fIsetterScript\fR
+.
+This defines the implementation of how to write to the property; the
+\fIsetterScript\fR will become the body of a method taking a single argument,
+\fIvalue\fR, defined on the class, if the kind of the property is such that
+the property can be written to. The method will be named
+\fB<WriteProp-\fIpropertyName\fB>\fR, and will default to being a simple write
+of the instance variable with the same name as the property (e.g.,
+.QW "\fBproperty\fR xyz"
+will result in a method
+.QW <WriteProp-xyz>
+being created).
+.PP
+Instances of the class that was created by \fBoo::configurable\fR will also
+support \fBproperty\fR definitions; the semantics will be exactly as above
+except that the properties will be defined on the instance alone.
+.PP
+Note that the property implementation methods that \fBproperty\fR defines
+should not be private, as this makes them inaccessible from the implementation
+of \fBconfigure\fR (by design; the property configuration mechanism is
+intended for use mainly from outside a class, whereas a class may access
+variables directly). The variables accessed by the default implementations of
+the properties \fImay\fR be private, if so declared.
+.SH "ADVANCED USAGE"
+.PP
+The configurable class system is comprised of several pieces. The
+\fBoo::configurable\fR metaclass works by mixing in a class and setting
+definition namespaces during object creation that provide the other bits and
+pieces of machinery. The key pieces of the implementation are enumerated here
+so that they can be used by other code:
+.\" COMMAND: configurable
+.TP
+\fBoo::configuresupport::configurable\fR
+.
+This is a class that provides the implementation of the \fBconfigure\fR method
+(described above in \fBCONFIGURE METHOD\fR).
+.\" NAMESPACE: configurableclass
+.TP
+\fBoo::configuresupport::configurableclass\fR
+.
+This is a namespace that contains the definition dialect that provides the
+\fBproperty\fR declaration for use in classes (i.e., via \fBoo::define\fR, and
+class constructors under normal circumstances), as described above in
+\fBPROPERTY DEFINITIONS\fR. It \fBnamespace export\fRs its \fBproperty\fR
+command so that it may be used easily in user definition dialects.
+.\" NAMESPACE: configurableobject
+.TP
+\fBoo::configuresupport::configurableobject\fR
+.
+This is a namespace that contains the definition dialect that provides the
+\fBproperty\fR declaration for use in instance objects (i.e., via
+\fBoo::objdefine\fR, and the \fBself\fR declaration in \fBoo::define\fR), as
+described above in \fBPROPERTY DEFINITIONS\fR. It \fBnamespace export\fRs its
+\fBproperty\fR command so that it may be used easily in user definition
+dialects.
+.PP
+The underlying property discovery mechanism relies on four slots (see
+\fBoo::define\fR for what that implies) that list the properties that can be
+configured. These slots do not themselves impose any semantics on what the
+slots mean other than that they have unique names, no important order, can be
+inherited and discovered on classes and instances.
+.PP
+These slots, and their intended semantics, are:
+.\" METHOD: readableproperties
+.TP
+\fBoo::configuresupport::readableproperties\fR
+.
+The set of properties of a class (not including those from its superclasses)
+that may be read from when configuring an instance of the class. This slot can
+also be read with the \fBinfo class properties\fR command.
+.\" METHOD: writableproperties
+.TP
+\fBoo::configuresupport::writableproperties\fR
+.
+The set of properties of a class (not including those from its superclasses)
+that may be written to when configuring an instance of the class. This slot
+can also be read with the \fBinfo class properties\fR command.
+.\" METHOD: objreadableproperties
+.TP
+\fBoo::configuresupport::objreadableproperties\fR
+.
+The set of properties of an object instance (not including those from its
+classes) that may be read from when configuring the object. This slot can
+also be read with the \fBinfo object properties\fR command.
+.\" METHOD: objwritableproperties
+.TP
+\fBoo::configuresupport::objwritableproperties\fR
+.
+The set of properties of an object instance (not including those from its
+classes) that may be written to when configuring the object. This slot can
+also be read with the \fBinfo object properties\fR command.
+.PP
+Note that though these are slots, they are \fInot\fR in the standard
+\fBoo::define\fR or \fBoo::objdefine\fR namespaces; in order to use them
+inside a definition script, they need to be referred to by full name. This is
+because they are intended to be building bricks of configurable property
+system, and not directly used by normal user code.
+.SS "IMPLEMENTATION NOTE"
+.PP
+The implementation of the \fBconfigure\fR method uses
+\fBinfo object properties\fR with the \fB\-all\fR option to discover what
+properties it may manipulate.
+.SH EXAMPLES
+.PP
+Here we create a simple configurable class and demonstrate how it can be
+configured:
+.PP
+.CS
+\fBoo::configurable\fR create Point {
+    \fBproperty\fR x y
+    constructor args {
+        my \fBconfigure\fR -x 0 -y 0 {*}$args
+    }
+    variable x y
+    method print {} {
+        puts "x=$x, y=$y"
+    }
+}
+
+set pt [Point new -x 27]
+$pt print;   \fI# x=27, y=0\fR
+$pt \fBconfigure\fR -y 42
+$pt print;   \fI# x=27, y=42\fR
+puts "distance from origin: [expr {
+    hypot([$pt \fBconfigure\fR -x], [$pt \fBconfigure\fR -y])
+}]";         \fI# distance from origin: 49.92995093127971\fR
+puts [$pt \fBconfigure\fR]
+             \fI# -x 27 -y 42\fR
+.CE
+.PP
+Such a configurable class can be extended by subclassing, though the subclass
+needs to also be created by \fBoo::configurable\fR if it will use the
+\fBproperty\fR definition:
+.PP
+.CS
+\fBoo::configurable\fR create Point3D {
+    superclass Point
+    \fBproperty\fR z
+    constructor args {
+        next -z 0 {*}$args
+    }
+}
+
+set pt2 [Point3D new -x 2 -y 3 -z 4]
+puts [$pt2 \fBconfigure\fR]
+             \fI# -x 2 -y 3 -z 4\fR
+.CE
+.PP
+Once you have a configurable class, you can also add instance properties to
+it. (The backing variables for all properties start unset.) Note below that we
+are using an unambiguous prefix of a property name when setting it; this is
+supported for all properties though full names are normally recommended
+because subclasses will not make an unambiguous prefix become ambiguous in
+that case.
+.PP
+.CS
+oo::objdefine $pt {
+    \fBproperty\fR color
+}
+$pt \fBconfigure\fR -c bisque
+puts [$pt \fBconfigure\fR]
+             \fI# -color bisque -x 27 -y 42\fR
+.CE
+.PP
+You can also do derived properties by making them read-only and supplying a
+script that computes them.
+.PP
+.CS
+\fBoo::configurable\fR create PointMk2 {
+    \fBproperty\fR x y
+    \fBproperty\fR distance -kind readable -get {
+        return [expr {hypot($x, $y)}]
+    }
+    variable x y
+    constructor args {
+        my \fBconfigure\fR -x 0 -y 0 {*}$args
+    }
+}
+
+set pt3 [PointMk2 new -x 3 -y 4]
+puts [$pt3 \fBconfigure\fR -distance]
+             \fI# 5.0\fR
+$pt3 \fBconfigure\fR -distance 10
+             \fI# ERROR: bad property "-distance": must be -x or -y\fR
+.CE
+.PP
+Setters are used to validate the type of a property:
+.PP
+.CS
+\fBoo::configurable\fR create PointMk3 {
+    \fBproperty\fR x -set {
+        if {![string is double -strict $value]} {
+            error "-x property must be a number"
+        }
+        set x $value
+    }
+    \fBproperty\fR y -set {
+        if {![string is double -strict $value]} {
+            error "-y property must be a number"
+        }
+        set y $value
+    }
+    variable x y
+    constructor args {
+        my \fBconfigure\fR -x 0 -y 0 {*}$args
+    }
+}
+
+set pt4 [PointMk3 new]
+puts [$pt4 \fBconfigure\fR]
+             \fI# -x 0 -y 0\fR
+$pt4 \fBconfigure\fR -x 3 -y 4
+puts [$pt4 \fBconfigure\fR]
+             \fI# -x 3 -y 4\fR
+$pt4 \fBconfigure\fR -x "obviously not a number"
+             \fI# ERROR: -x property must be a number\fR
+.CE
+.SH "SEE ALSO"
+info(n), oo::class(n), oo::define(n)
+.SH KEYWORDS
+class, object, properties, configuration
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/const.n b/doc/const.n
new file mode 100644
index 0000000..9bc77ba
--- /dev/null
+++ b/doc/const.n
@@ -0,0 +1,85 @@
+'\"
+'\" Copyright (c) 2023 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH const n 9.0 Tcl "Tcl Built-In Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+const \- create and initialize a constant
+.SH SYNOPSIS
+\fBconst \fIvarName value\fR
+.BE
+.SH DESCRIPTION
+.PP
+This command is normally used within a procedure body (or method body,
+or lambda term) to create a constant within that procedure, or within a
+\fBnamespace eval\fR body to create a constant within that namespace.
+The constant is an unmodifiable variable, called \fIvarName\fR, that is
+initialized with \fIvalue\fR.
+The result of \fBconst\fR is always the empty string on success.
+.PP
+If a variable \fIvarName\fR does not exist, it is created with its value set
+to \fIvalue\fR and marked as a constant; this means that no other command
+(e.g., \fBset\fR, \fBappend\fR, \fBincr\fR, \fBunset\fR)
+may modify or remove the variable; variables are checked for whether they
+are constants before any traces are called.
+If a variable \fIvarName\fR already exists, it is an error unless that
+variable is marked as a constant (in which case \fBconst\fR is a no-op).
+.PP
+The \fIvarName\fR may not be a qualified name or reference an element of an
+array by any means. If the variable exists and is an array, that is an error.
+.PP
+Constants are normally only removed by their containing procedure exiting or
+their namespace being deleted.
+.SH EXAMPLES
+.PP
+Create a constant in a procedure:
+.PP
+.CS
+proc foo {a b} {
+    \fBconst\fR BAR 12345
+    return [expr {$a + $b + $BAR}]
+}
+.CE
+.PP
+Create a constant in a namespace to factor out a regular expression:
+.PP
+.CS
+namespace eval someNS {
+    \fBconst\fR FOO_MATCHER {(?i)}\emfoo\eM}
+
+    proc findFoos str {
+        variable FOO_MATCHER
+        regexp -all $FOO_MATCHER $str
+    }
+
+    proc findFooIndices str {
+        variable FOO_MATCHER
+        regexp -all -indices $FOO_MATCHER $str
+    }
+}
+.CE
+.PP
+Making a constant in a loop doesn't error:
+.PP
+.CS
+proc foo {n} {
+    set result {}
+    for {set i 0} {$i < $n} {incr i} {
+        \fBconst\fR X 123
+	lappend result [expr {$X + $i**2}]
+    }
+}
+.CE
+.SH "SEE ALSO"
+proc(n), namespace(n), set(n), unset(n)
+.SH KEYWORDS
+namespace, procedure, variable, constant
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/continue.n b/doc/continue.n
index 728b9dc..5eca861 100644
--- a/doc/continue.n
+++ b/doc/continue.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH continue n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,32 +14,34 @@ continue \- Skip to the next iteration of a loop
 .SH SYNOPSIS
 \fBcontinue\fR
 .BE
-
 .SH DESCRIPTION
 .PP
 This command is typically invoked inside the body of a looping command
 such as \fBfor\fR or \fBforeach\fR or \fBwhile\fR.
-It returns a \fBTCL_CONTINUE\fR code, which causes a continue exception
-to occur.
+It returns a 4 (\fBTCL_CONTINUE\fR) result code, which causes a continue
+exception to occur.
 The exception causes the current script to be aborted
 out to the innermost containing loop command, which then
 continues with the next iteration of the loop.
-Catch exceptions are also handled in a few other situations, such
+Continue exceptions are also handled in a few other situations, such
 as the \fBcatch\fR command and the outermost scripts of procedure
 bodies.
 .SH EXAMPLE
+.PP
 Print a line for each of the integers from 0 to 10 \fIexcept\fR 5:
+.PP
 .CS
 for {set x 0} {$x<10} {incr x} {
-   if {$x == 5} {
-      \fBcontinue\fR
-   }
-   puts "x is $x"
+    if {$x == 5} {
+        \fBcontinue\fR
+    }
+    puts "x is $x"
 }
 .CE
-
 .SH "SEE ALSO"
 break(n), for(n), foreach(n), return(n), while(n)
-
 .SH KEYWORDS
 continue, iteration, loop
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/cookiejar.n b/doc/cookiejar.n
new file mode 100644
index 0000000..fca15cb
--- /dev/null
+++ b/doc/cookiejar.n
@@ -0,0 +1,227 @@
+'\"
+'\" Copyright (c) 2014-2018 Donal K. Fellows.
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH "cookiejar" n 0.1 http "Tcl Bundled Packages"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+cookiejar \- Implementation of the Tcl http package cookie jar protocol
+.SH SYNOPSIS
+.nf
+\fBpackage require\fR \fBcookiejar\fR ?\fB0.1\fR?
+
+\fB::http::cookiejar configure\fR ?\fIoptionName\fR? ?\fIoptionValue\fR?
+\fB::http::cookiejar create\fI name\fR ?\fIfilename\fR?
+\fB::http::cookiejar new\fR ?\fIfilename\fR?
+
+\fIcookiejar\fR \fBdestroy\fR
+\fIcookiejar\fR \fBforceLoadDomainData\fR
+\fIcookiejar\fR \fBgetCookies\fI protocol host path\fR
+\fIcookiejar\fR \fBstoreCookie\fI options\fR
+\fIcookiejar\fR \fBlookup\fR ?\fIhost\fR? ?\fIkey\fR?
+.fi
+.SH DESCRIPTION
+.PP
+The cookiejar package provides an implementation of the http package's cookie
+jar protocol using an SQLite database. It provides one main command,
+\fB::http::cookiejar\fR, which is a TclOO class that should be instantiated to
+create a cookie jar that manages a particular HTTP session.
+.PP
+The database management policy can be controlled at the package level by the
+\fBconfigure\fR method on the \fB::http::cookiejar\fR class object:
+.\" METHOD: configure
+.TP
+\fB::http::cookiejar configure\fR ?\fIoptionName\fR? ?\fIoptionValue\fR?
+.
+If neither \fIoptionName\fR nor \fIoptionValue\fR are supplied, this returns a
+copy of the configuration as a Tcl dictionary. If just \fIoptionName\fR is
+supplied, just the value of the named option is returned. If both
+\fIoptionName\fR and \fIoptionValue\fR are given, the named option is changed
+to be the given value.
+.RS
+.PP
+Supported options are:
+.\" OPTION: -domainfile
+.TP
+\fB\-domainfile \fIfilename\fR
+.
+A file (defaulting to within the cookiejar package) with a description of the
+list of top-level domains (e.g., \fB.com\fR or \fB.co.jp\fR). Such domains
+\fImust not\fR accept cookies set upon them. Note that the list of such
+domains is both security-sensitive and \fInot\fR constant and should be
+periodically refetched. Cookie jars maintain their own cache of the domain
+list.
+.\" OPTION: -domainlist
+.TP
+\fB\-domainlist \fIurl\fR
+.
+A URL to fetch the list of top-level domains (e.g., \fB.com\fR or
+\fB.co.jp\fR) from.  Such domains \fImust not\fR accept cookies set upon
+them. Note that the list of such domains is both security-sensitive and
+\fInot\fR constant and should be periodically refetched. Cookie jars maintain
+their own cache of the domain list.
+.\" OPTION: -domainrefresh
+.TP
+\fB\-domainrefresh \fIintervalMilliseconds\fR
+.
+The number of milliseconds between checks of the \fB\-domainlist\fR for new
+domains.
+.\" OPTION: -loglevel
+.TP
+\fB\-loglevel \fIlevel\fR
+.
+The logging level of this package. The logging level must be (in order of
+decreasing verbosity) one of \fBdebug\fR, \fBinfo\fR, \fBwarn\fR, or
+\fBerror\fR.
+.\" OPTION: -offline
+.TP
+\fB\-offline \fIflag\fR
+.
+Allows the cookie management engine to be placed into offline mode. In offline
+mode, the list of domains is read immediately from the file configured in the
+\fB\-domainfile\fR option, and the \fB\-domainlist\fR option is not used; it
+also makes the \fB\-domainrefresh\fR option be effectively ignored.
+.\" OPTION: -purgeold
+.TP
+\fB\-purgeold \fIintervalMilliseconds\fR
+.
+The number of milliseconds between checks of the database for expired
+cookies; expired cookies are deleted.
+.\" OPTION: -retain
+.TP
+\fB\-retain \fIcookieCount\fR
+.
+The maximum number of cookies to retain in the database.
+.\" OPTION: -vacuumtrigger
+.TP
+\fB\-vacuumtrigger \fIdeletionCount\fR
+.
+A count of the number of persistent cookie deletions to go between vacuuming
+the database.
+.RE
+.PP
+Cookie jar instances may be made with any of the standard TclOO instance
+creation methods (\fBcreate\fR or \fBnew\fR).
+.\" METHOD: new
+.TP
+\fB::http::cookiejar new\fR ?\fIfilename\fR?
+.
+If a \fIfilename\fR argument is provided, it is the name of a file containing
+an SQLite database that will contain the persistent cookies maintained by the
+cookie jar; the database will be created if the file does not already exist.
+If \fIfilename\fR is not supplied, the database will be held entirely within
+memory, which effectively forces all cookies within it to be session cookies.
+.SS "INSTANCE METHODS"
+.PP
+The following methods are supported on the instances:
+.\" METHOD: destroy
+.TP
+\fIcookiejar \fBdestroy\fR
+.
+This is the standard TclOO destruction method. It does \fInot\fR delete the
+SQLite database if it is written to disk. Callers are responsible for ensuring
+that the cookie jar is not in use by the http package at the time of
+destruction.
+.\" METHOD: forceLoadDomainData
+.TP
+\fIcookiejar \fBforceLoadDomainData\fR
+.
+This method causes the cookie jar to immediately load (and cache) the domain
+list data. The domain list will be loaded from the \fB\-domainlist\fR
+configured a the package level if that is enabled, and otherwise will be
+obtained from the \fB\-domainfile\fR configured at the package level.
+.\" METHOD: getCookies
+.TP
+\fIcookiejar \fBgetCookies\fI protocol host path\fR
+.
+This method obtains the cookies for a particular HTTP request. \fIThis
+implements the http cookie jar protocol.\fR
+.\" METHOD: policyAllow
+.TP
+\fIcookiejar \fBpolicyAllow\fI operation domain path\fR
+.
+This method is called by the \fBstoreCookie\fR method to get a decision on
+whether to allow \fIoperation\fR to be performed for the \fIdomain\fR and
+\fIpath\fR. This is checked immediately before the database is updated but
+after the built-in security checks are done, and should return a boolean
+value; if the value is false, the operation is rejected and the database is
+not modified. The supported \fIoperation\fRs are:
+.RS
+.IP \fBdelete\fR
+The \fIdomain\fR is seeking to delete a cookie.
+.IP \fBsession\fR
+The \fIdomain\fR is seeking to create or update a session cookie.
+.IP \fBset\fR
+The \fIdomain\fR is seeking to create or update a persistent cookie (with a
+defined lifetime).
+.PP
+The default implementation of this method just returns true, but subclasses of
+this class may impose their own rules.
+.RE
+.\" METHOD: storeCookie
+.TP
+\fIcookiejar \fBstoreCookie\fI options\fR
+.
+This method stores a single cookie from a particular HTTP response. Cookies
+that fail security checks are ignored. \fIThis implements the http cookie jar
+protocol.\fR
+.\" METHOD: lookup
+.TP
+\fIcookiejar \fBlookup\fR ?\fIhost\fR? ?\fIkey\fR?
+.
+This method looks a cookie by exact host (or domain) matching. If neither
+\fIhost\fR nor \fIkey\fR are supplied, the list of hosts for which a cookie is
+stored is returned. If just \fIhost\fR (which may be a hostname or a domain
+name) is supplied, the list of cookie keys stored for that host is returned.
+If both \fIhost\fR and \fIkey\fR are supplied, the value for that key is
+returned; it is an error if no such host or key match exactly.
+.SH "EXAMPLES"
+.PP
+The simplest way of using a cookie jar is to just permanently configure it at
+the start of the application.
+.PP
+.CS
+package require http
+\fBpackage require cookiejar\fR
+
+set cookiedb [file join [file home] cookiejar]
+http::config -cookiejar [\fBhttp::cookiejar new\fR $cookiedb]
+
+# No further explicit steps are required to use cookies
+set tok [http::geturl http://core.tcl-lang.org/]
+.CE
+.PP
+To only allow a particular domain to use cookies, perhaps because you only
+want to enable a particular host to create and manipulate sessions, create a
+subclass that imposes that policy.
+.PP
+.CS
+package require http
+\fBpackage require cookiejar\fR
+
+oo::class create MyCookieJar {
+    superclass \fBhttp::cookiejar\fR
+
+    method \fBpolicyAllow\fR {operation domain path} {
+        return [expr {$domain eq "my.example.com"}]
+    }
+}
+
+set cookiedb [file join [file home] cookiejar]
+http::configure -cookiejar [MyCookieJar new $cookiedb]
+
+# No further explicit steps are required to use cookies
+set tok [http::geturl http://core.tcl-lang.org/]
+.CE
+.SH "SEE ALSO"
+http(n), oo::class(n), sqlite3(n)
+.SH KEYWORDS
+cookie, internet, security policy, www
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/copy.n b/doc/copy.n
new file mode 100644
index 0000000..46b3c78
--- /dev/null
+++ b/doc/copy.n
@@ -0,0 +1,74 @@
+'\"
+'\" Copyright (c) 2007 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH copy n 0.1 TclOO "TclOO Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+oo::copy \- create copies of objects and classes
+.SH SYNOPSIS
+.nf
+package require tcl::oo
+
+\fBoo::copy\fI sourceObject \fR?\fItargetObject\fR? ?\fItargetNamespace\fR?
+.fi
+.BE
+.SH DESCRIPTION
+.PP
+The \fBoo::copy\fR command creates a copy of an object or class. It takes the
+name of the object or class to be copied, \fIsourceObject\fR, and optionally
+the name of the object or class to create, \fItargetObject\fR, which will be
+resolved relative to the current namespace if not an absolute qualified name
+and
+\fItargetNamespace\fR which is the name of the namespace that will hold the
+internal state of the object (\fBmy\fR command, etc.); it \fImust not\fR
+refer to an existing namespace.
+If either \fItargetObject\fR or \fItargetNamespace\fR is omitted or is given
+as the empty string, a new name is chosen. Names, unless specified, are
+chosen with the same algorithm used by the \fBnew\fR method of
+\fBoo::class\fR.
+The copied object will be of the same class as the source object, and will have
+all its per-object methods copied. If it is a class, it will also have all the
+class methods in the class copied, but it will not have any of its instances
+copied.
+.PP
+.VS
+After the \fItargetObject\fR has been created and all definitions of its
+configuration (e.g., methods, filters, mixins) copied, the \fB<cloned>\fR
+method of \fItargetObject\fR will be invoked, to allow for customization of
+the created object such as installing related variable traces. The only
+argument given will be \fIsourceObject\fR. The default implementation of this
+method (in \fBoo::object\fR) just copies the procedures and variables in the
+namespace of \fIsourceObject\fR to the namespace of \fItargetObject\fR. If
+this method call does not return a result that is successful (i.e., an error
+or other kind of exception) then the \fItargetObject\fR will be deleted and an
+error returned.
+.VE
+.PP
+The result of the \fBoo::copy\fR command will be the fully-qualified name of
+the new object or class.
+.SH EXAMPLES
+.PP
+This example creates an object, copies it, modifies the source object, and
+then demonstrates that the copied object is indeed a copy.
+.PP
+.CS
+oo::object create src
+oo::objdefine src method msg {} {puts foo}
+\fBoo::copy\fR src dst
+oo::objdefine src method msg {} {puts bar}
+src msg              \fI\(-> prints "bar"\fR
+dst msg              \fI\(-> prints "foo"\fR
+.CE
+.SH "SEE ALSO"
+oo::class(n), oo::define(n), oo::object(n)
+.SH KEYWORDS
+clone, copy, duplication, object
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/coroutine.n b/doc/coroutine.n
new file mode 100644
index 0000000..3a029d4
--- /dev/null
+++ b/doc/coroutine.n
@@ -0,0 +1,293 @@
+'\"
+'\" Copyright (c) 2009 Donal K. Fellows.
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH coroutine n 8.6 Tcl "Tcl Built-In Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+coroutine, yield, yieldto, coroinject, coroprobe \- Create and produce values from coroutines
+.SH SYNOPSIS
+.nf
+\fBcoroutine \fIname command\fR ?\fIarg...\fR?
+
+\fByield\fR ?\fIvalue\fR?
+\fByieldto\fI command\fR ?\fIarg...\fR?
+\fIname\fR ?\fIvalue...\fR?
+
+.VS TIP383
+\fBcoroinject \fIcoroName command\fR ?\fIarg...\fR?
+\fBcoroprobe \fIcoroName command\fR ?\fIarg...\fR?
+.VE TIP383
+.fi
+.BE
+.SH DESCRIPTION
+.PP
+The \fBcoroutine\fR command creates a new coroutine context (with associated
+command) named \fIname\fR and executes that context by calling \fIcommand\fR,
+passing in the other remaining arguments without further interpretation. Once
+\fIcommand\fR returns normally or with an exception (e.g., an error) the
+coroutine context \fIname\fR is deleted.
+.PP
+Within the context, values may be generated as results by using the
+\fByield\fR command; if no \fIvalue\fR is supplied, the empty string is used.
+When that is called, the context will suspend execution and the
+\fBcoroutine\fR command will return the argument to \fByield\fR. The execution
+of the context can then be resumed by calling the context command, optionally
+passing in the \fIsingle\fR value to use as the result of the \fByield\fR call
+that caused
+the context to be suspended. If the coroutine context never yields and instead
+returns conventionally, the result of the \fBcoroutine\fR command will be the
+result of the evaluation of the context.
+.PP
+The coroutine may also suspend its execution by use of the \fByieldto\fR
+command, which instead of returning, cedes execution to some command called
+\fIcommand\fR (resolved in the context of the coroutine) and to which \fIany
+number\fR of arguments may be passed. Since every coroutine has a context
+command, \fByieldto\fR can be used to transfer control directly from one
+coroutine to another (this is only advisable if the two coroutines are
+expecting this to happen) but \fIany\fR command may be the target. If a
+coroutine is suspended by this mechanism, the coroutine processing can be
+resumed by calling the context command optionally passing in an arbitrary
+number of arguments. The return value of the \fByieldto\fR call will be the
+list of arguments passed to the context command; it is up to the caller to
+decide what to do with those values.
+.PP
+The recommended way of writing a version of \fByield\fR that allows resumption
+with multiple arguments is by using \fByieldto\fR and the \fBreturn\fR
+command, like this:
+.PP
+.CS
+proc yieldMultiple {value} {
+    tailcall \fByieldto\fR string cat $value
+}
+.CE
+.PP
+The coroutine can also be deleted by destroying the command \fIname\fR, and
+the name of the current coroutine can be retrieved by using
+\fBinfo coroutine\fR.
+If there are deletion traces on variables in the coroutine's
+implementation, they will fire at the point when the coroutine is explicitly
+deleted (or, naturally, if the command returns conventionally).
+.PP
+At the point when \fIcommand\fR is called, the current namespace will be the
+global namespace and there will be no stack frames above it (in the sense of
+\fBupvar\fR and \fBuplevel\fR). However, which command to call will be
+determined in the namespace that the \fBcoroutine\fR command was called from.
+.PP
+.VS TIP383
+A suspended coroutine (i.e., one that has \fByield\fRed or \fByieldto\fR-d)
+may have its state inspected (or modified) at that point by using
+\fBcoroprobe\fR to run a command at the point where the coroutine is at. The
+command takes the name of the coroutine to run the command in, \fIcoroName\fR,
+and the name of a command (any any arguments it requires) to immediately run
+at that point. The result of that command is the result of the \fBcoroprobe\fR
+command, and the gross state of the coroutine remains the same afterwards
+(i.e., the coroutine is still expecting the results of a \fByield\fR or
+\fByieldto\fR as before) though variables may have been changed.
+.PP
+Similarly, the \fBcoroinject\fR command may be used to place a command to be
+run inside a suspended coroutine (when it is resumed) to process arguments,
+with quite a bit of similarity to \fBcoroprobe\fR. However, with
+\fBcoroinject\fR there are several key differences:
+.VE TIP383
+.IP \(bu
+.VS TIP383
+The coroutine is not immediately resumed after the injection has been done.  A
+consequence of this is that multiple injections may be done before the
+coroutine is resumed. The injected commands are performed in \fIreverse
+order of definition\fR (that is, they are internally stored on a stack).
+.VE TIP383
+.IP \(bu
+.VS TIP383
+An additional two arguments are appended to the list of arguments to be run
+(that is, the \fIcommand\fR and its \fIargs\fR are extended by two elements).
+The first is the name of the command that suspended the coroutine (\fByield\fR
+or \fByieldto\fR), and the second is the argument (or list of arguments, in
+the case of \fByieldto\fR) that is the current resumption value.
+.VE TIP383
+.IP \(bu
+.VS TIP383
+The result of the injected command is used as the result of the \fByield\fR or
+\fByieldto\fR that caused the coroutine to become suspended. Where there are
+multiple injected commands, the result of one becomes the resumption value
+processed by the next.
+.PP
+The injection is a one-off. It is not retained once it has been executed. It
+may \fByield\fR or \fByieldto\fR as part of its execution.
+.PP
+Note that running coroutines may be neither probed nor injected; the
+operations may only be applied to coroutines that are suspended. (If a
+coroutine is running then any introspection code would be merely inspecting
+the state of where it is currently running; \fBcoroinject\fR/\fBcoroprobe\fR
+are unnecessary in that case.)
+.VE TIP383
+.SH EXAMPLES
+.PP
+This example shows a coroutine that will produce an infinite sequence of
+even values, and a loop that consumes the first ten of them.
+.PP
+.CS
+proc allNumbers {} {
+    \fByield\fR
+    set i 0
+    while 1 {
+        \fByield\fR $i
+        incr i 2
+    }
+}
+\fBcoroutine\fR nextNumber allNumbers
+for {set i 0} {$i < 10} {incr i} {
+    puts "received [\fInextNumber\fR]"
+}
+rename nextNumber {}
+.CE
+.PP
+In this example, the coroutine acts to add up the arguments passed to it.
+.PP
+.CS
+\fBcoroutine\fR accumulator apply {{} {
+    set x 0
+    while 1 {
+        incr x [\fByield\fR $x]
+    }
+}}
+for {set i 0} {$i < 10} {incr i} {
+    puts "$i -> [\fIaccumulator\fR $i]"
+}
+.CE
+.PP
+This example demonstrates the use of coroutines to implement the classic Sieve
+of Eratosthenes algorithm for finding prime numbers. Note the creation of
+coroutines inside a coroutine.
+.PP
+.CS
+proc filterByFactor {source n} {
+    \fByield\fR [info coroutine]
+    while 1 {
+        set x [\fI$source\fR]
+        if {$x % $n} {
+            \fByield\fR $x
+        }
+    }
+}
+\fBcoroutine\fR allNumbers apply {{} {while 1 {\fByield\fR [incr x]}}}
+\fBcoroutine\fR eratosthenes apply {c {
+    \fByield\fR
+    while 1 {
+        set n [\fI$c\fR]
+        \fByield\fR $n
+        set c [\fBcoroutine\fR prime$n filterByFactor $c $n]
+    }
+}} allNumbers
+for {set i 1} {$i <= 20} {incr i} {
+    puts "prime#$i = [\fIeratosthenes\fR]"
+}
+.CE
+.PP
+This example shows how a value can be passed around a group of three
+coroutines that yield to each other:
+.PP
+.CS
+proc juggler {name target {value ""}} {
+    if {$value eq ""} {
+        set value [\fByield\fR [info coroutine]]
+    }
+    while {$value ne ""} {
+        puts "$name : $value"
+        set value [string range $value 0 end-1]
+        lassign [\fByieldto\fI $target\fR $value] value
+    }
+}
+\fBcoroutine\fR j1 juggler Larry [
+    \fBcoroutine\fR j2 juggler Curly [
+        \fBcoroutine\fR j3 juggler Moe j1]] "Nyuck!Nyuck!Nyuck!"
+.CE
+.PP
+.VS TIP383
+This example shows a simple coroutine that collects non-empty values and
+returns a list of them when not given an argument. It also shows how we can
+look inside the coroutine to find out what it is doing, and how we can modify
+the input on a one-off basis.
+.PP
+.CS
+proc collectorImpl {} {
+    set me [info coroutine]
+    set accumulator {}
+    for {set val [\fByield\fR $me]} {$val ne ""} {set val [\fByield\fR]} {
+        lappend accumulator $val
+    }
+    return $accumulator
+}
+
+\fBcoroutine\fR collect collectorImpl
+\fIcollect\fR 123
+\fIcollect\fR "abc def"
+\fIcollect\fR 456
+
+puts [\fBcoroprobe \fIcollect\fR set accumulator]
+# ==> 123 {abc def} 456
+
+\fIcollect\fR "pqr"
+
+\fBcoroinject \fIcollect\fR apply {{type value} {
+    puts "Received '$value' at a $type in [info coroutine]"
+    return [string toupper $value]
+}}
+
+\fIcollect\fR rst
+# ==> Received 'rst' at a yield in ::collect
+\fIcollect\fR xyz
+
+puts [\fIcollect\fR]
+# ==> 123 {abc def} 456 pqr RST xyz
+.CE
+.VE TIP383
+.SS "DETAILED SEMANTICS"
+.PP
+This example demonstrates that coroutines start from the global namespace, and
+that \fIcommand\fR resolution happens before the coroutine stack is created.
+.PP
+.CS
+proc report {where level} {
+    # Where was the caller called from?
+    set ns [uplevel 2 {namespace current}]
+    \fByield\fR "made $where $level context=$ns name=[info coroutine]"
+}
+proc example {} {
+    report outer [info level]
+}
+namespace eval demo {
+    proc example {} {
+        report inner [info level]
+    }
+    proc makeExample {} {
+        puts "making from [info level]"
+        puts [\fBcoroutine\fR coroEg example]
+    }
+    makeExample
+}
+.CE
+.PP
+Which produces the output below. In particular, we can see that stack
+manipulation has occurred (comparing the levels from the first and second
+line) and that the parent level in the coroutine is the global namespace. We
+can also see that coroutine names are local to the current namespace if not
+qualified, and that coroutines may yield at depth (e.g., in called
+procedures).
+.PP
+.CS
+making from 2
+made inner 1 context=:: name=::demo::coroEg
+.CE
+.SH "SEE ALSO"
+apply(n), info(n), proc(n), return(n)
+.SH KEYWORDS
+coroutine, generator
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/dde.n b/doc/dde.n
index 06de949..86bf92c 100644
--- a/doc/dde.n
+++ b/doc/dde.n
@@ -4,30 +4,25 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-.TH dde n 1.3 dde "Tcl Bundled Packages"
+'\"
+.TH dde n 1.4 dde "Tcl Bundled Packages"
 .so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
 dde \- Execute a Dynamic Data Exchange command
 .SH SYNOPSIS
-.sp
-\fBpackage require dde 1.3\fR
-.sp
+.nf
+\fBpackage require dde 1.4\fR
+
 \fBdde servername\fR ?\fB\-force\fR? ?\fB\-handler \fIproc\fR? ?\fB\-\|\-\fR? ?\fItopic\fR?
-.sp
-\fBdde execute\fR ?\fB\-async\fR? \fIservice topic data\fR
-.sp
-\fBdde poke\fR \fIservice topic item data\fR
-.sp
+\fBdde execute\fR ?\fB\-async\fR? ?\fB\-binary\fR? \fIservice topic data\fR
+\fBdde poke\fR ?\fB\-binary\fR? \fIservice topic item data\fR
 \fBdde request\fR ?\fB\-binary\fR? \fIservice topic item\fR
-.sp
 \fBdde services \fIservice topic\fR
-.sp
 \fBdde eval\fR ?\fB\-async\fR? \fItopic cmd \fR?\fIarg arg ...\fR?
+.fi
 .BE
-
 .SH DESCRIPTION
 .PP
 This command allows an application to send Dynamic Data Exchange (DDE)
@@ -44,6 +39,7 @@ has the service name \fBExcel\fR.
 .PP
 The following commands are a subset of the full Dynamic Data Exchange
 set of commands.
+.\" METHOD: servername
 .TP
 \fBdde servername \fR?\fB\-force\fR? ?\fB\-handler \fIproc\fR? ?\fB\-\|\-\fR? ?\fItopic\fR?
 .
@@ -68,8 +64,9 @@ safe interpreter then a \fB\-handler\fR procedure must be defined. The
 procedure is called with all the arguments provided by the remote
 call.
 .RE
+.\" METHOD: execute
 .TP
-\fBdde execute\fR ?\fB\-async\fR? \fIservice topic data\fR
+\fBdde execute\fR ?\fB\-async\fR? ?\fB\-binary\fR? \fIservice topic data\fR
 .
 \fBdde execute\fR takes the \fIdata\fR and sends it to the server indicated
 by \fIservice\fR with the topic indicated by \fItopic\fR. Typically,
@@ -80,8 +77,17 @@ script is run in the application.  The \fB\-async\fR option requests
 asynchronous invocation.  The command returns an error message if the
 script did not run, unless the \fB\-async\fR flag was used, in which case
 the command returns immediately with no error.
+.RS
+.PP
+Without the \fB\-binary\fR option all data will be sent in unicode. For
+dde clients which don't implement the CF_UNICODE clipboard format, this
+will automatically be translated to the system encoding. You can use
+the \fB\-binary\fR option in combination with the result of
+\fBencoding convertto\fR to send data in any other encoding.
+.RE
+.\" METHOD: poke
 .TP
-\fBdde poke \fIservice topic item data\fR
+\fBdde poke\fR ?\fB\-binary\fR? \fIservice topic item data\fR
 .
 \fBdde poke\fR passes the \fIdata\fR to the server indicated by
 \fIservice\fR using the \fItopic\fR and \fIitem\fR specified.  Typically,
@@ -90,6 +96,15 @@ specific but can be a command to the server or the name of a file to work
 on.  The \fIitem\fR is also application specific and is often not used, but
 it must always be non-null.  The \fIdata\fR field is given to the remote
 application.
+.RS
+.PP
+Without the \fB\-binary\fR option all data will be sent in unicode. For
+dde clients which don't implement the CF_UNICODE clipboard format, this
+will automatically be translated to the system encoding. You can use
+the \fB\-binary\fR option in combination with the result of
+\fBencoding convertto\fR to send data in any other encoding.
+.RE
+.\" METHOD: request
 .TP
 \fBdde request\fR ?\fB\-binary\fR? \fIservice topic item\fR
 .
@@ -101,6 +116,7 @@ application-specific. The command returns the value of \fIitem\fR as
 defined in the application.  Normally this is interpreted to be a
 string with terminating null.  If \fB\-binary\fR is specified, the
 result is returned as a byte array.
+.\" METHOD: services
 .TP
 \fBdde services \fIservice topic\fR
 .
@@ -113,6 +129,7 @@ returned. If \fIservice\fR is non-empty and \fItopic\fR is, all topics
 for a given service are returned. If both are non-empty, if that
 service-topic pair currently exists, it is returned; otherwise, an
 empty string is returned.
+.\" METHOD: eval
 .TP
 \fBdde eval\fR ?\fB\-async\fR? \fItopic cmd \fR?\fIarg arg ...\fR?
 .
@@ -123,6 +140,7 @@ command returns an error message if the script did not run, unless the
 \fB\-async\fR flag was used, in which case the command returns immediately
 with no error.  This command can be used to replace send on Windows.
 .SH "DDE AND TCL"
+.PP
 A Tcl interpreter always has a service name of \fBTclEval\fR.  Each
 different interpreter of all running Tcl applications must be
 given a unique
@@ -155,13 +173,18 @@ If for any reason the event queue is not flushed, DDE commands may
 hang until the event queue is flushed.  This can create a deadlock
 situation.
 .SH EXAMPLE
+.PP
 This asks Internet Explorer (which must already be running) to go to a
 particularly important website:
+.PP
 .CS
 package require dde
-\fBdde execute\fR -async iexplore WWW_OpenURL http://www.tcl.tk/
+\fBdde execute\fR -async iexplore WWW_OpenURL http://www.tcl-lang.org/
 .CE
 .SH "SEE ALSO"
 tk(n), winfo(n), send(n)
 .SH KEYWORDS
 application, dde, name, remote execution
+'\"Local Variables:
+'\"mode: nroff
+'\"End:
diff --git a/doc/define.n b/doc/define.n
new file mode 100644
index 0000000..8146d59
--- /dev/null
+++ b/doc/define.n
@@ -0,0 +1,856 @@
+'\"
+'\" Copyright (c) 2007-2018 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH define n 0.3 TclOO "TclOO Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+oo::define, oo::objdefine, oo::Slot \- define and configure classes and objects
+.SH SYNOPSIS
+.nf
+package require tcl::oo
+
+\fBoo::define\fI class defScript\fR
+\fBoo::define\fI class subcommand arg\fR ?\fIarg ...\fR?
+\fBoo::objdefine\fI object defScript\fR
+\fBoo::objdefine\fI object subcommand arg\fR ?\fIarg ...\fR?
+
+\fBoo::Slot\fR \fIarg...\fR
+.fi
+.SH "CLASS HIERARCHY"
+.nf
+\fBoo::object\fR
+   \(-> \fBoo::Slot\fR
+.fi
+.BE
+.SH DESCRIPTION
+The \fBoo::define\fR command is used to control the configuration of classes,
+and the \fBoo::objdefine\fR command is used to control the configuration of
+objects (including classes as instance objects), with the configuration being
+applied to the entity named in the \fIclass\fR or the \fIobject\fR argument.
+Configuring a class also updates the
+configuration of all subclasses of the class and all objects that are
+instances of that class or which mix it in (as modified by any per-instance
+configuration). The way in which the configuration is done is controlled by
+either the \fIdefScript\fR argument or by the \fIsubcommand\fR and following
+\fIarg\fR arguments; when the second is present, it is exactly as if all the
+arguments from \fIsubcommand\fR onwards are made into a list and that list is
+used as the \fIdefScript\fR argument.
+.PP
+Note that the constructor for \fBoo::class\fR will call \fBoo::define\fR on
+the script argument that it is provided. This is a convenient way to create
+and define a class in one step.
+.SH "CONFIGURING CLASSES"
+.PP
+The following commands are supported in the \fIdefScript\fR for
+\fBoo::define\fR, each of which may also be used in the \fIsubcommand\fR form:
+.\" METHOD: classmethod
+.TP
+\fBclassmethod\fI name\fR ?\fIargList bodyScrip\fR?
+.VS TIP478
+This creates a class method, or (if \fIargList\fR and \fIbodyScript\fR are
+omitted) promotes an existing method on the class object to be a class
+method. The \fIname\fR, \fIargList\fR and \fIbodyScript\fR arguments are as in
+the \fBmethod\fR definition, below.
+.RS
+.PP
+Class methods can be called on either the class itself or on the instances of
+that class. When they are called, the current object (see the \fBsel\fR and
+\fBmy\fR commands) is the class on which they are called or the class of the
+instance on which they are called, depending on whether they are called on the
+class or an instance of the class, respectively. If called on a subclass or
+instance of the subclass, the current object is the subclass.
+.PP
+In a private definition context, the methods as invoked on classes are
+\fInot\fR private, but the methods as invoked on instances of classes are
+private.
+.RE
+.VE TIP478
+.\" METHOD: constructor
+.TP
+\fBconstructor\fI argList bodyScript\fR
+.
+This creates or updates the constructor for a class. The formal arguments to
+the constructor (defined using the same format as for the Tcl \fBproc\fR
+command) will be \fIargList\fR, and the body of the constructor will be
+\fIbodyScript\fR. When the body of the constructor is evaluated, the current
+namespace of the constructor will be a namespace that is unique to the object
+being constructed. Within the constructor, the \fBnext\fR command should be
+used to call the superclasses' constructors. If \fIbodyScript\fR is the empty
+string, the constructor will be deleted.
+.RS
+.PP
+Classes do not need to have a constructor defined. If none is specified, the
+superclass's constructor will be used instead.
+.RE
+.\" METHOD: destructor
+.TP
+\fBdestructor\fI bodyScript\fR
+.
+This creates or updates the destructor for a class. Destructors take no
+arguments, and the body of the destructor will be \fIbodyScript\fR. The
+destructor is called when objects of the class are deleted, and when called
+will have the object's unique namespace as the current namespace. Destructors
+should use the \fBnext\fR command to call the superclasses' destructors. Note
+that destructors are not called in all situations (e.g. if the interpreter is
+destroyed). If \fIbodyScript\fR is the empty string, the destructor will be
+deleted.
+.RS
+Note that errors during the evaluation of a destructor \fIare not returned\fR
+to the code that causes the destruction of an object. Instead, they are passed
+to the currently-defined \fBbgerror\fR handler.
+.RE
+.\" METHOD: export
+.TP
+\fBexport\fI name \fR?\fIname ...\fR?
+.
+This arranges for each of the named methods, \fIname\fR, to be exported
+(i.e. usable outside an instance through the instance object's command) by the
+class being defined. Note that the methods themselves may be actually defined
+by a superclass; subclass exports override superclass visibility, and may in
+turn be overridden by instances.
+.\" METHOD: forward
+.TP
+\fBforward\fI name cmdName \fR?\fIarg ...\fR?
+.
+This creates or updates a forwarded method called \fIname\fR. The method is
+defined be forwarded to the command called \fIcmdName\fR, with additional
+arguments, \fIarg\fR etc., added before those arguments specified by the
+caller of the method. The \fIcmdName\fR will always be resolved using the
+rules of the invoking objects' namespaces, i.e., when \fIcmdName\fR is not
+fully-qualified, the command will be searched for in each object's namespace,
+using the instances' namespace's path, or by looking in the global namespace.
+The method will be exported if \fIname\fR starts with a lower-case letter, and
+non-exported otherwise.
+.RS
+.PP
+.VS TIP500
+If in a private definition context (see the \fBprivate\fR definition command,
+below), this command creates private forwarded methods.
+.VE TIP500
+.RE
+.\" METHOD: initialise
+.TP
+\fBinitialise\fI script\fR
+.TP
+\fBinitialize\fI script\fR
+.VS TIP478
+This evaluates \fIscript\fR in a context which supports local variables and
+where the current namespace is the instance namespace of the class object
+itself. This is useful for setting up, e.g., class-scoped variables.
+.VE TIP478
+.\" METHOD: method
+.TP
+\fBmethod\fI name \fR?\fIoption\fR? \fIargList bodyScript\fR
+.
+This creates or updates a method that is implemented as a procedure-like
+script. The name of the method is \fIname\fR, the formal arguments to the
+method (defined using the same format as for the Tcl \fBproc\fR command) will
+be \fIargList\fR, and the body of the method will be \fIbodyScript\fR. When
+the body of the method is evaluated, the current namespace of the method will
+be a namespace that is unique to the current object. The method will be
+exported if \fIname\fR starts with a lower-case letter, and non-exported
+otherwise; this behavior can be overridden via \fBexport\fR and
+\fBunexport\fR
+.VS TIP519
+or by specifying \fB\-export\fR, \fB\-private\fR or \fB\-unexport\fR in the
+optional parameter \fIoption\fR.
+.VE TIP519
+.RS
+.PP
+.VS TIP500
+If in a private definition context (see the \fBprivate\fR definition command,
+below) or if the \fB\-private\fR flag is given for \fIoption\fR, this command
+creates private procedure-like methods.
+.VE TIP500
+.RE
+.\" METHOD: private
+.TP
+\fBprivate \fIcmd arg...\fR
+.TP
+\fBprivate \fIscript\fR
+.
+.VS TIP500
+This evaluates the \fIscript\fR (or the list of command and arguments given by
+\fIcmd\fR and \fIarg\fRs) in a context where the definitions made on the
+current class will be private definitions.
+.RS
+.PP
+The following class definition commands are affected by \fBprivate\fR:
+\fBforward\fR, \fBmethod\fR, \fBself\fR, and \fBvariable\fR. Nesting
+\fBprivate\fR inside \fBprivate\fR has no cumulative effect; the innermost
+definition context is just a private definition context. All other definition
+commands have no difference in behavior when used in a private definition
+context.
+.RE
+.VE TIP500
+.\" METHOD: self
+.TP
+\fBself\fI subcommand arg ...\fR
+.TP
+\fBself\fI script\fR
+.TP
+\fBself\fR
+.
+This command is equivalent to calling \fBoo::objdefine\fR on the class being
+defined (see \fBCONFIGURING OBJECTS\fR below for a description of the
+supported values of \fIsubcommand\fR). It follows the same general pattern of
+argument handling as the \fBoo::define\fR and \fBoo::objdefine\fR commands,
+and
+.QW "\fBoo::define \fIcls \fBself \fIsubcommand ...\fR"
+operates identically to
+.QW "\fBoo::objdefine \fIcls subcommand ...\fR" .
+.RS
+.PP
+.VS TIP470
+If no arguments at all are used, this gives the name of the class currently
+being configured.
+.VE TIP470
+.VS TIP500
+If in a private definition context (see the \fBprivate\fR definition command,
+below), the definitions on the class object will also be made in a private
+definition context.
+.VE TIP500
+.RE
+.\" METHOD: superclass
+.TP
+\fBsuperclass\fR ?\fI\-slotOperation\fR? ?\fIclassName ...\fR?
+.
+This slot (see \fBSLOTTED DEFINITIONS\fR below)
+allows the alteration of the superclasses of the class being defined.
+Each \fIclassName\fR argument names one class that is to be a superclass of
+the defined class. Note that objects must not be changed from being classes to
+being non-classes or vice-versa, that an empty parent class is equivalent to
+\fBoo::object\fR, and that the parent classes of \fBoo::object\fR and
+\fBoo::class\fR may not be modified.
+By default, this slot works by replacement.
+.\" METHOD: unexport
+.TP
+\fBunexport\fI name \fR?\fIname ...\fR?
+.
+This arranges for each of the named methods, \fIname\fR, to be not exported
+(i.e. not usable outside the instance through the instance object's command,
+but instead just through the \fBmy\fR command visible in each object's
+context) by the class being defined. Note that the methods themselves may be
+actually defined by a superclass; subclass unexports override superclass
+visibility, and may be overridden by instance unexports.
+.\" METHOD: variable
+.TP
+\fBvariable\fR ?\fI\-slotOperation\fR? ?\fIname ...\fR?
+.
+This slot (see \fBSLOTTED DEFINITIONS\fR below) arranges for each of the named
+variables to be automatically made
+available in the methods, constructor and destructor declared by the class
+being defined. Each variable name must not have any namespace
+separators and must not look like an array access. All variables will be
+actually present in the namespace of the instance object on which the method
+is executed. Note
+that the variable lists declared by a superclass or subclass are completely
+disjoint, as are variable lists declared by instances; the list of variable
+names is just for methods (and constructors and destructors) declared by this
+class. By default, this slot works by appending.
+.RS
+.PP
+.VS TIP500
+If in a private definition context (see the \fBprivate\fR definition command,
+below), this slot manipulates the list of private variable bindings for this
+class. In a private variable binding, the name of the variable within the
+instance object is different to the name given in the definition; the name
+used in the definition is the name that you use to access the variable within
+the methods of this class, and the name of the variable in the instance
+namespace has a unique prefix that makes accidental use from other classes
+extremely unlikely.
+.VE TIP500
+.RE
+.SS "ADVANCED CLASS CONFIGURATION OPTIONS"
+.PP
+The following definitions are also supported, but are not required in simple
+programs:
+.\" METHOD: definitionnamespace
+.TP
+\fBdefinitionnamespace\fR ?\fIkind\fR? \fInamespaceName\fR
+.VS TIP524
+This allows control over what namespace will be used by the \fBoo::define\fR
+and \fBoo::objdefine\fR commands to look up the definition commands they
+use. When any object has a definition operation applied to it, \fIthe class that
+it is an instance of\fR (and its superclasses and mixins) is consulted for
+what definition namespace to use. \fBoo::define\fR gets the class definition
+namespace, and \fB::oo::objdefine\fR gets the instance definition namespace,
+but both otherwise use the identical lookup operation.
+.RS
+.PP
+This sets the definition namespace of kind \fIkind\fR provided by the current
+class to \fInamespaceName\fR. The \fInamespaceName\fR must refer to a
+currently existing namespace, or must be the empty string (to stop the current
+class from having such a namespace connected). The \fIkind\fR, if supplied,
+must be either \fB\-class\fR (the default) or \fB\-instance\fR to specify the
+whether the namespace for use with \fBoo::define\fR or \fBoo::objdefine\fR
+respectively is being set.
+.PP
+The class \fBoo::object\fR has its instance namespace locked to
+\fB::oo::objdefine\fR, and the class \fBoo::class\fR has its class namespace
+locked to \fB::oo::define\fR. A consequence of this is that effective use of
+this feature for classes requires the definition of a metaclass.
+.RE
+.VE TIP524
+.\" METHOD: deletemethod
+.TP
+\fBdeletemethod\fI name\fR ?\fIname ...\fR?
+.
+This deletes each of the methods called \fIname\fR from a class. The methods
+must have previously existed in that class. Does not affect the superclasses
+of the class, nor does it affect the subclasses or instances of the class
+(except when they have a call chain through the class being modified) or the
+class object itself.
+.\" METHOD: filter
+.TP
+\fBfilter\fR ?\fI\-slotOperation\fR? ?\fImethodName ...\fR?
+.
+This slot (see \fBSLOTTED DEFINITIONS\fR below)
+sets or updates the list of method names that are used to guard whether
+method call to instances of the class may be called and what the method's
+results are. Each \fImethodName\fR names a single filtering method (which may
+be exposed or not exposed); it is not an error for a non-existent method to be
+named since they may be defined by subclasses.
+By default, this slot works by appending.
+.\" METHOD: mixin
+.TP
+\fBmixin\fR ?\fI\-slotOperation\fR? ?\fIclassName ...\fR?
+.
+This slot (see \fBSLOTTED DEFINITIONS\fR below)
+sets or updates the list of additional classes that are to be mixed into
+all the instances of the class being defined. Each \fIclassName\fR argument
+names a single class that is to be mixed in.
+By default, this slot works by replacement.
+.\" METHOD: renamemethod
+.TP
+\fBrenamemethod\fI fromName toName\fR
+.
+This renames the method called \fIfromName\fR in a class to \fItoName\fR. The
+method must have previously existed in the class, and \fItoName\fR must not
+previously refer to a method in that class. Does not affect the superclasses
+of the class, nor does it affect the subclasses or instances of the class
+(except when they have a call chain through the class being modified), or the
+class object itself. Does
+not change the export status of the method; if it was exported before, it will
+be afterwards.
+.SH "CONFIGURING OBJECTS"
+.PP
+The following commands are supported in the \fIdefScript\fR for
+\fBoo::objdefine\fR, each of which may also be used in the \fIsubcommand\fR
+form:
+.\" METHOD: export
+.TP
+\fBexport\fI name \fR?\fIname ...\fR?
+.
+This arranges for each of the named methods, \fIname\fR, to be exported
+(i.e. usable outside the object through the object's command) by the object
+being defined. Note that the methods themselves may be actually defined by a
+class or superclass; object exports override class visibility.
+.\" METHOD: forward
+.TP
+\fBforward\fI name cmdName \fR?\fIarg ...\fR?
+.
+This creates or updates a forwarded object method called \fIname\fR. The
+method is defined be forwarded to the command called \fIcmdName\fR, with
+additional arguments, \fIarg\fR etc., added before those arguments specified
+by the caller of the method. Forwarded methods should be deleted using the
+\fBmethod\fR subcommand. The method will be exported if \fIname\fR starts with
+a lower-case letter, and non-exported otherwise.
+.RS
+.PP
+.VS TIP500
+If in a private definition context (see the \fBprivate\fR definition command,
+below), this command creates private forwarded methods.
+.VE TIP500
+.RE
+.\" METHOD: method
+.TP
+\fBmethod\fI name \fR?\fIoption\fR? \fIargList bodyScript\fR
+.
+This creates, updates or deletes an object method. The name of the method is
+\fIname\fR, the formal arguments to the method (defined using the same format
+as for the Tcl \fBproc\fR command) will be \fIargList\fR, and the body of the
+method will be \fIbodyScript\fR. When the body of the method is evaluated, the
+current namespace of the method will be a namespace that is unique to the
+object. The method will be exported if \fIname\fR starts with a lower-case
+letter, and non-exported otherwise;
+.VS TIP519
+this can be overridden by specifying \fB\-export\fR, \fB\-private\fR or
+\fB\-unexport\fR in the optional parameter \fIoption\fR, or via the
+\fBexport\fR and \fBunexport\fR definitions.
+.VE TIP519
+.RS
+.PP
+.VS TIP500
+If in a private definition context (see the \fBprivate\fR definition command,
+below) or if the \fB\-private\fR flag is given for \fIoption\fR, this command
+creates private procedure-like methods.
+.VE TIP500
+.RE
+.\" METHOD: mixin
+.TP
+\fBmixin\fR ?\fI\-slotOperation\fR? ?\fIclassName ...\fR?
+.
+This slot (see \fBSLOTTED DEFINITIONS\fR below)
+sets or updates a per-object list of additional classes that are to be
+mixed into the object. Each argument, \fIclassName\fR, names a single class
+that is to be mixed in.
+By default, this slot works by replacement.
+.\" METHOD: private
+.TP
+\fBprivate \fIcmd arg...\fR
+.TP
+\fBprivate \fIscript\fR
+.VS TIP500
+This evaluates the \fIscript\fR (or the list of command and arguments given by
+\fIcmd\fR and \fIarg\fRs) in a context where the definitions made on the
+current object will be private definitions.
+.RS
+.PP
+The following class definition commands are affected by \fBprivate\fR:
+\fBforward\fR, \fBmethod\fR, and \fBvariable\fR. Nesting \fBprivate\fR inside
+\fBprivate\fR has no cumulative effect; the innermost definition context is
+just a private definition context. All other definition commands have no
+difference in behavior when used in a private definition context.
+.RE
+.VE TIP500
+.\" METHOD: unexport
+.TP
+\fBunexport\fI name \fR?\fIname ...\fR?
+.
+This arranges for each of the named methods, \fIname\fR, to be not exported
+(i.e. not usable outside the object through the object's command, but instead
+just through the \fBmy\fR command visible in the object's context) by the
+object being defined. Note that the methods themselves may be actually defined
+by a class; instance unexports override class visibility.
+.\" METHOD: variable
+.TP
+\fBvariable\fR ?\fI\-slotOperation\fR? ?\fIname ...\fR?
+.
+This slot (see \fBSLOTTED DEFINITIONS\fR below) arranges for each of the named
+variables to be automatically made available in the methods declared by the
+object being defined.  Each variable name must not have any namespace
+separators and must not look like an array access. All variables will be
+actually present in the namespace of the object on which the method is
+executed. Note that the
+variable lists declared by the classes and mixins of which the object is an
+instance are completely disjoint; the list of variable names is just for
+methods declared by this object. By default, this slot works by appending.
+.RS
+.PP
+.VS TIP500
+If in a private definition context (see the \fBprivate\fR definition command,
+below), this slot manipulates the list of private variable bindings for this
+object.  In a private variable binding, the name of the variable within the
+instance object is different to the name given in the definition; the name
+used in the definition is the name that you use to access the variable within
+the methods of this instance object, and the name of the variable in the
+instance namespace has a unique prefix that makes accidental use from
+superclass methods extremely unlikely.
+.VE TIP500
+.RE
+.SS "ADVANCED OBJECT CONFIGURATION OPTIONS"
+.PP
+The following definitions are also supported, but are not required in simple
+programs:
+.\" METHOD: class
+.TP
+\fBclass\fI className\fR
+.
+This allows the class of an object to be changed after creation. Note that the
+class's constructors are not called when this is done, and so the object may
+well be in an inconsistent state unless additional configuration work is done.
+.\" METHOD: deletemethod
+.TP
+\fBdeletemethod\fI name\fR ?\fIname ...\fR
+.
+This deletes each of the methods called \fIname\fR from an object. The methods
+must have previously existed in that object (e.g., because it was created
+through \fBoo::objdefine method\fR). Does not affect the classes that the
+object is an instance of, or remove the exposure of those class-provided
+methods in the instance of that class.
+.\" METHOD: filter
+.TP
+\fBfilter\fR ?\fI\-slotOperation\fR? ?\fImethodName ...\fR?
+.
+This slot (see \fBSLOTTED DEFINITIONS\fR below)
+sets or updates the list of method names that are used to guard whether a
+method call to the object may be called and what the method's results are.
+Each \fImethodName\fR names a single filtering method (which may be exposed or
+not exposed); it is not an error for a non-existent method to be named. Note
+that the actual list of filters also depends on the filters set upon any
+classes that the object is an instance of.
+By default, this slot works by appending.
+.\" METHOD: renamemethod
+.TP
+\fBrenamemethod\fI fromName toName\fR
+.
+This renames the method called \fIfromName\fR in an object to \fItoName\fR.
+The method must have previously existed in the object, and \fItoName\fR must
+not previously refer to a method in that object. Does not affect the classes
+that the object is an instance of and cannot rename in an instance object the
+methods provided by those classes (though a \fBoo::objdefine forward\fRed
+method may provide an equivalent capability). Does not change the export
+status of the method; if it was exported before, it will be afterwards.
+.\" METHOD: self
+.TP
+\fBself \fR
+.VS TIP470
+This gives the name of the object currently being configured.
+.VE TIP470
+.SH "PRIVATE METHODS"
+.VS TIP500
+When a class or instance has a private method, that private method can only be
+invoked from within methods of that class or instance. Other callers of the
+object's methods \fIcannot\fR invoke private methods, it is as if the private
+methods do not exist. However, a private method of a class \fIcan\fR be
+invoked from the class's methods when those methods are being used on another
+instance object; this means that a class can use them to coordinate behaviour
+between several instances of itself without interfering with how other
+classes (especially either subclasses or superclasses) interact. Private
+methods precede all mixed in classes in the method call order (as reported by
+\fBself call\fR).
+.VE TIP500
+.SH "SLOTTED DEFINITIONS"
+Some of the configurable definitions of a class or object are \fIslotted
+definitions\fR. This means that the configuration is implemented by a slot
+object, that is an instance of the class \fBoo::Slot\fR, which manages a list
+of values (class names, variable names, etc.) that comprises the contents of
+the slot.
+.PP
+The \fBoo::Slot\fR class defines six operations (as methods) that may be done
+on the slot:
+.\" METHOD: -append
+.TP
+\fIslot\fR \fB\-append\fR ?\fImember ...\fR?
+.
+This appends the given \fImember\fR elements to the slot definition.
+.\" METHOD: -appendifnew
+.TP
+\fIslot\fR \fB\-appendifnew\fR ?\fImember ...\fR?
+.VS TIP558
+This appends the given \fImember\fR elements to the slot definition if they
+do not already exist.
+.VE TIP558
+.\" METHOD: -clear
+.TP
+\fIslot\fR \fB\-clear\fR
+.
+This sets the slot definition to the empty list.
+.\" METHOD: -prepend
+.TP
+\fIslot\fR \fB\-prepend\fR ?\fImember ...\fR?
+.VS TIP516
+This prepends the given \fImember\fR elements to the slot definition.
+.VE TIP516
+.\" METHOD: -remove
+.TP
+\fIslot\fR \fB\-remove\fR ?\fImember ...\fR?
+.VS TIP516
+This removes the given \fImember\fR elements from the slot definition.
+.VE TIP516
+.\" METHOD: -set
+.TP
+\fIslot\fR \fB\-set\fR ?\fImember ...\fR?
+.
+This replaces the slot definition with the given \fImember\fR elements.
+.PP
+A consequence of this is that any use of a slot's default operation where the
+first member argument begins with a hyphen will be an error. One of the above
+operations should be used explicitly in those circumstances.
+.PP
+You only need to make an instance of \fBoo::Slot\fR if you are definining your
+own slot that behaves like a standard slot.
+.PP
+.SS "SLOT IMPLEMENTATION"
+.\" METHOD: --default-operation
+Internally, slot objects also define a method \fB\-\-default\-operation\fR
+which is forwarded to the default operation of the slot (thus, for the class
+.QW \fBvariable\fR
+slot, this is forwarded to
+.QW "\fBmy \-append\fR" ),
+and these methods which provide the implementation interface:
+.\" METHOD: Get
+.TP
+\fIslot\fR \fBGet\fR
+.
+Returns a list that is the current contents of the slot, but does not modify
+the slot. This method must always be called from a stack frame created by a
+call to \fBoo::define\fR or \fBoo::objdefine\fR. This method \fIshould not\fR
+return an error unless it is called from outside a definition context or with
+the wrong number of arguments.
+.RS
+.PP
+.VS TIP516
+The elements of the list should be fully resolved, if that is a meaningful
+concept to the slot.
+.VE TIP516
+.RE
+.\" METHOD: Resolve
+.TP
+\fIslot\fR \fBResolve\fI slotElement\fR
+.VS TIP516
+Returns \fIslotElement\fR with a resolution operation applied to it, but does
+not modify the slot. For slots of simple strings, this is an operation that
+does nothing, whereas for slots of classes, this maps a class name to its
+fully-qualified class name.  This method must always be called from a stack
+frame created by a call to \fBoo::define\fR or \fBoo::objdefine\fR.  This
+method \fIshould not\fR return an error unless it is called from outside a
+definition context or with the wrong number of arguments; unresolvable
+arguments should be returned as is (as not all slot operations strictly
+require that values are resolvable to work).
+.RS
+.PP
+Implementations \fIshould not\fR enforce uniqueness and ordering constraints
+in this method; that is the responsibility of the \fBSet\fR method.
+.RE
+.VE TIP516
+.\" METHOD: Resolve
+.TP
+\fIslot\fR \fBResolve \fIelement\fR
+.VS
+This converts an element of the slotted collection into its resolved form; for
+a simple value, it could just return the value, but for a slot that contains
+references to commands or classes it should convert those into their
+fully-qualified forms (so they can be compared with \fBstring equals\fR): that
+could be done by forwarding to \fBnamespace which\fR or similar.
+.VE
+.\" METHOD: Set
+.TP
+\fIslot\fR \fBSet \fIelementList\fR
+.
+Sets the contents of the slot to the list \fIelementList\fR and returns the
+empty string. This method must always be called from a stack frame created by
+a call to \fBoo::define\fR or \fBoo::objdefine\fR. This method may return an
+error if it rejects the change to the slot contents (e.g., because of invalid
+values) as well as if it is called from outside a definition context or with
+the wrong number of arguments.
+.RS
+.PP
+This method \fImay\fR reorder and filter the elements if this is necessary in
+order to satisfy the underlying constraints of the slot. (For example, slots
+of classes enforce a uniqueness constraint that places each element in the
+earliest location in the slot that it can.)
+.RE
+.PP
+The implementation of these methods is slot-dependent (and responsible for
+accessing the correct part of the class or object definition). Slots also have
+an unknown method handler to tie all these pieces together, and they hide
+their \fBdestroy\fR method so that it is not invoked inadvertently. It is
+\fIrecommended\fR that any user changes to the slot mechanism itself be
+restricted to defining new operations whose names start with a hyphen.
+.PP
+Note that slot instances are not expected to contain the storage for the slot
+they manage; that will be in or attached to the class or object that they
+manage. Those instances should provide their own implementations of the
+\fBGet\fR and \fBSet\fR methods (and optionally \fBResolve\fR; that defaults
+to a do-nothing pass-through).
+.PP
+.VS TIP516
+Most slot operations will initially \fBResolve\fR their argument list, combine
+it with the results of the \fBGet\fR method, and then \fBSet\fR the result.
+Some operations omit one or both of the first two steps; omitting the third
+would result in an idempotent read-only operation (but the standard mechanism
+for reading from slots is via \fBinfo class\fR and \fBinfo object\fR).
+.VE TIP516
+.SH EXAMPLES
+This example demonstrates how to use both forms of the \fBoo::define\fR and
+\fBoo::objdefine\fR commands (they work in the same way), as well as
+illustrating four of their subcommands.
+.PP
+.CS
+oo::class create c
+c create o
+\fBoo::define\fR c \fBmethod\fR foo {} {
+    puts "world"
+}
+\fBoo::objdefine\fR o {
+    \fBmethod\fR bar {} {
+        my Foo "hello "
+        my foo
+    }
+    \fBforward\fR Foo ::puts -nonewline
+    \fBunexport\fR foo
+}
+o bar                \fI\(-> prints "hello world"\fR
+o foo                \fI\(-> error "unknown method foo"\fR
+o Foo Bar            \fI\(-> error "unknown method Foo"\fR
+\fBoo::objdefine\fR o \fBrenamemethod\fR bar lollipop
+o lollipop           \fI\(-> prints "hello world"\fR
+.CE
+.PP
+This example shows how additional classes can be mixed into an object. It also
+shows how \fBmixin\fR is a slot that supports appending:
+.PP
+.CS
+oo::object create inst
+inst m1              \fI\(-> error "unknown method m1"\fR
+inst m2              \fI\(-> error "unknown method m2"\fR
+
+oo::class create A {
+    \fBmethod\fR m1 {} {
+        puts "red brick"
+    }
+}
+\fBoo::objdefine\fR inst {
+    \fBmixin\fR A
+}
+inst m1              \fI\(-> prints "red brick"\fR
+inst m2              \fI\(-> error "unknown method m2"\fR
+
+oo::class create B {
+    \fBmethod\fR m2 {} {
+        puts "blue brick"
+    }
+}
+\fBoo::objdefine\fR inst {
+    \fBmixin -append\fR B
+}
+inst m1              \fI\(-> prints "red brick"\fR
+inst m2              \fI\(-> prints "blue brick"\fR
+.CE
+.PP
+.VS TIP478
+This example shows how to create and use class variables. It is a class that
+counts how many instances of itself have been made.
+.PP
+.CS
+oo::class create Counted
+\fBoo::define\fR Counted {
+    \fBinitialise\fR {
+        variable count 0
+    }
+
+    \fBvariable\fR number
+    \fBconstructor\fR {} {
+        classvariable count
+        set number [incr count]
+    }
+
+    \fBmethod\fR report {} {
+        classvariable count
+        puts "This is instance $number of $count"
+    }
+}
+
+set a [Counted new]
+set b [Counted new]
+$a report
+        \fI\(-> This is instance 1 of 2\fR
+set c [Counted new]
+$b report
+        \fI\(-> This is instance 2 of 3\fR
+$c report
+        \fI\(-> This is instance 3 of 3\fR
+.CE
+.PP
+This example demonstrates how to use class methods. (Note that the constructor
+for \fBoo::class\fR calls \fBoo::define\fR on the class.)
+.PP
+.CS
+oo::class create DBTable {
+    \fBclassmethod\fR find {description} {
+        puts "DB: locate row from [self] matching $description"
+        return [my new]
+    }
+    \fBclassmethod\fR insert {description} {
+        puts "DB: create row in [self] matching $description"
+        return [my new]
+    }
+    \fBmethod\fR update {description} {
+        puts "DB: update row [self] with $description"
+    }
+    \fBmethod\fR delete {} {
+        puts "DB: delete row [self]"
+        my destroy; # Just delete the object, not the DB row
+    }
+}
+
+oo::class create Users {
+    \fBsuperclass\fR DBTable
+}
+oo::class create Groups {
+    \fBsuperclass\fR DBTable
+}
+
+set u1 [Users insert "username=abc"]
+        \fI\(-> DB: create row from ::Users matching username=abc\fR
+set u2 [Users insert "username=def"]
+        \fI\(-> DB: create row from ::Users matching username=def\fR
+$u2 update "group=NULL"
+        \fI\(-> DB: update row ::oo::Obj124 with group=NULL\fR
+$u1 delete
+        \fI\(-> DB: delete row ::oo::Obj123\fR
+set g [Group find "groupname=webadmins"]
+        \fI\(-> DB: locate row ::Group with groupname=webadmins\fR
+$g update "emailaddress=admins"
+        \fI\(-> DB: update row ::oo::Obj125 with emailaddress=admins\fR
+.CE
+.VE TIP478
+.PP
+.VS TIP524
+This example shows how to make a custom definition for a class. Note that it
+explicitly includes delegation to the existing definition commands via
+\fBnamespace path\fR.
+.PP
+.CS
+namespace eval myDefinitions {
+    # Delegate to existing definitions where not overridden
+    namespace path \fB::oo::define\fR
+
+    # A custom type of method
+    proc exprmethod {name arguments body} {
+        tailcall \fBmethod\fR $name $arguments [list expr $body]
+    }
+
+    # A custom way of building a constructor
+    proc parameters args {
+        uplevel 1 [list \fBvariable\fR {*}$args]
+        set body [join [lmap a $args {
+            string map [list VAR $a] {
+                set [my varname VAR] [expr {double($VAR)}]
+            }
+        }] ";"]
+        tailcall \fBconstructor\fR $args $body
+    }
+}
+
+# Bind the namespace into a (very simple) metaclass for use
+oo::class create exprclass {
+    \fBsuperclass\fR oo::class
+    \fBdefinitionnamespace\fR myDefinitions
+}
+
+# Use the custom definitions
+exprclass create quadratic {
+    parameters a b c
+    exprmethod evaluate {x} {
+        ($a * $x**2) + ($b * $x) + $c
+    }
+}
+
+# Showing the resulting class and object in action
+quadratic create quad 1 2 3
+for {set x 0} {$x <= 4} {incr x} {
+    puts [format "quad(%d) = %.2f" $x [quad evaluate $x]]
+}
+        \fI\(-> quad(0) = 3.00\fR
+        \fI\(-> quad(1) = 6.00\fR
+        \fI\(-> quad(2) = 11.00\fR
+        \fI\(-> quad(3) = 18.00\fR
+        \fI\(-> quad(4) = 27.00\fR
+.CE
+.VE TIP524
+.SH "SEE ALSO"
+next(n), oo::class(n), oo::object(n)
+.SH KEYWORDS
+class, definition, method, object, slot
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/dict.n b/doc/dict.n
index 4a107d3..fdd020a 100644
--- a/doc/dict.n
+++ b/doc/dict.n
@@ -19,38 +19,54 @@ Performs one of several operations on dictionary values or variables
 containing dictionary values (see the \fBDICTIONARY VALUES\fR section
 below for a description), depending on \fIoption\fR.  The legal
 \fIoption\fRs (which may be abbreviated) are:
+.\" METHOD: append
 .TP
 \fBdict append \fIdictionaryVariable key \fR?\fIstring ...\fR?
+.
 This appends the given string (or strings) to the value that the given
 key maps to in the dictionary value contained in the given variable,
 writing the resulting dictionary value back to that variable.
-Non-existent keys are treated as if they map to an empty string.
+Non-existent keys are treated as if they map to an empty string. The
+updated dictionary value is returned.
+.VS TIP508
+If \fIdictionaryVariable\fR indicates an element that does not exist of an
+array that has a default value set, the default value and will be used as the
+value of the dictionary prior to the appending operation.
+.VE TIP508
+.\" METHOD: create
 .TP
 \fBdict create \fR?\fIkey value ...\fR?
-Create a new dictionary that contains each of the key/value mappings
+.
+Return a new dictionary that contains each of the key/value mappings
 listed as arguments (keys and values alternating, with each key being
 followed by its associated value.)
+.\" METHOD: exists
 .TP
 \fBdict exists \fIdictionaryValue key \fR?\fIkey ...\fR?
+.
 This returns a boolean value indicating whether the given key (or path
 of keys through a set of nested dictionaries) exists in the given
 dictionary value. This returns a true value exactly when \fBdict
 get\fR on that path will succeed.
+.\" METHOD: filter
 .TP
 \fBdict filter \fIdictionaryValue filterType arg \fR?\fIarg ...\fR?
+.
 This takes a dictionary value and returns a new dictionary that
 contains just those key/value pairs that match the specified filter
 type (which may be abbreviated.)  Supported filter types are:
 .RS
 .TP
-\fBdict filter \fIdictionaryValue \fBkey \fIglobPattern\fR
-The key rule only matches those key/value pairs whose keys match the
-given pattern (in the style of \fBstring match\fR.)
+\fBdict filter \fIdictionaryValue \fBkey\fR ?\fIglobPattern ...\fR?
+.
+The key rule only matches those key/value pairs whose keys match any
+of the given patterns (in the style of \fBstring match\fR.)
 .TP
-\fBdict filter \fIdictionaryValue \fBscript {\fIkeyVar valueVar\fB} \fIscript\fR
+\fBdict filter \fIdictionaryValue \fBscript {\fIkeyVariable valueVariable\fB} \fIscript\fR
+.
 The script rule tests for matching by assigning the key to the
-\fIkeyVar\fR and the value to the \fIvalueVar\fR, and then evaluating
-the given script which should return a boolean value (with the
+\fIkeyVariable\fR and the value to the \fIvalueVariable\fR, and then evaluating
+the given script which should result in a boolean value (with the
 key/value pair only being included in the result of the \fBdict
 filter\fR when a true value is returned.)  Note that the first
 argument after the rule selection word is a two-element list.  If the
@@ -60,12 +76,15 @@ dictionary, and a condition of \fBTCL_CONTINUE\fR is equivalent to a false
 result. The key/value pairs are tested in the order in which the keys
 were inserted into the dictionary.
 .TP
-\fBdict filter \fIdictionaryValue \fBvalue \fIglobPattern\fR
-The value rule only matches those key/value pairs whose values match
-the given pattern (in the style of \fBstring match\fR.)
+\fBdict filter \fIdictionaryValue \fBvalue \fR?\fIglobPattern ...\fR?
+.
+The value rule only matches those key/value pairs whose values match any
+of the given patterns (in the style of \fBstring match\fR.)
 .RE
+.\" METHOD: for
 .TP
-\fBdict for {\fIkeyVar valueVar\fB} \fIdictionaryValue body\fR
+\fBdict for {\fIkeyVariable valueVariable\fB} \fIdictionaryValue body\fR
+.
 This command takes three arguments, the first a two-element list of
 variable names (for the key and value respectively of each mapping in
 the dictionary), the second the dictionary value to iterate across,
@@ -78,8 +97,10 @@ terminate successfully immediately. If any evaluation of the body
 generates a \fBTCL_CONTINUE\fR result, this shall be treated exactly like a
 normal \fBTCL_OK\fR result. The order of iteration is the order in
 which the keys were inserted into the dictionary.
+.\" METHOD: get
 .TP
 \fBdict get \fIdictionaryValue \fR?\fIkey ...\fR?
+.
 Given a dictionary value (first argument) and a key (second argument),
 this will retrieve the value for that key. Where several keys are
 supplied, the behaviour of the command shall be as if the result of
@@ -102,77 +123,166 @@ the value for that key.
 It is an error to attempt to retrieve a value for a key that is not
 present in the dictionary.
 .RE
+.\" METHOD: getdef
+.\" METHOD: getwithdefault
+.TP
+\fBdict getdef \fIdictionaryValue \fR?\fIkey ...\fR? \fIkey default\fR
+.TP
+\fBdict getwithdefault \fIdictionaryValue \fR?\fIkey ...\fR? \fIkey default\fR
+.VS TIP342
+This behaves the same as \fBdict get\fR (with at least one \fIkey\fR
+argument), returning the value that the key path maps to in the
+dictionary \fIdictionaryValue\fR, except that instead of producing an
+error because the \fIkey\fR (or one of the \fIkey\fRs on the key path)
+is absent, it returns the \fIdefault\fR argument instead.
+.RS
+.PP
+Note that there must always be at least one \fIkey\fR provided, and that
+\fBdict getdef\fR and \fBdict getwithdefault\fR are aliases for each other.
+.RE
+.VE TIP342
+.\" METHOD: incr
 .TP
 \fBdict incr \fIdictionaryVariable key \fR?\fIincrement\fR?
+.
 This adds the given increment value (an integer that defaults to 1 if
 not specified) to the value that the given key maps to in the
 dictionary value contained in the given variable, writing the
 resulting dictionary value back to that variable. Non-existent keys
 are treated as if they map to 0. It is an error to increment a value
-for an existing key if that value is not an integer.
+for an existing key if that value is not an integer. The updated
+dictionary value is returned.
+.VS TIP508
+If \fIdictionaryVariable\fR indicates an element that does not exist of an
+array that has a default value set, the default value and will be used as the
+value of the dictionary prior to the incrementing operation.
+.VE TIP508
+.\" METHOD: info
 .TP
 \fBdict info \fIdictionaryValue\fR
+.
 This returns information (intended for display to people) about the
 given dictionary though the format of this data is dependent on the
 implementation of the dictionary. For dictionaries that are
 implemented by hash tables, it is expected that this will return the
 string produced by \fBTcl_HashStats\fR, similar to \fBarray statistics\fR.
+.\" METHOD: keys
 .TP
 \fBdict keys \fIdictionaryValue \fR?\fIglobPattern\fR?
+.
 Return a list of all keys in the given dictionary value. If a pattern
 is supplied, only those keys that match it (according to the rules of
 \fBstring match\fR) will be returned. The returned keys will be in the
 order that they were inserted into the dictionary.
+.\" METHOD: lappend
 .TP
 \fBdict lappend \fIdictionaryVariable key \fR?\fIvalue ...\fR?
+.
 This appends the given items to the list value that the given key maps
 to in the dictionary value contained in the given variable, writing
 the resulting dictionary value back to that variable. Non-existent
 keys are treated as if they map to an empty list, and it is legal for
 there to be no items to append to the list. It is an error for the
-value that the key maps to to not be representable as a list.
+value that the key maps to to not be representable as a list. The
+updated dictionary value is returned.
+.VS TIP508
+If \fIdictionaryVariable\fR indicates an element that does not exist of an
+array that has a default value set, the default value and will be used as the
+value of the dictionary prior to the list-appending operation.
+.VE TIP508
+.\" METHOD: map
+.TP
+\fBdict map \fR{\fIkeyVariable valueVariable\fR} \fIdictionaryValue body\fR
+.
+This command applies a transformation to each element of a dictionary,
+returning a new dictionary. It takes three arguments: the first is a
+two-element list of variable names (for the key and value respectively of each
+mapping in the dictionary), the second the dictionary value to iterate across,
+and the third a script to be evaluated for each mapping with the key and value
+variables set appropriately (in the manner of \fBlmap\fR). In an iteration
+where the evaluated script completes normally (\fBTCL_OK\fR, as opposed to an
+\fBerror\fR, etc.) the result of the script is put into an accumulator
+dictionary using the key that is the current contents of the \fIkeyVariable\fR
+variable at that point. The result of the \fBdict map\fR command is the
+accumulator dictionary after all keys have been iterated over.
+.RS
+.PP
+If the evaluation of the body for any particular step generates a \fBbreak\fR,
+no further pairs from the dictionary will be iterated over and the \fBdict
+map\fR command will terminate successfully immediately. If the evaluation of
+the body for a particular step generates a \fBcontinue\fR result, the current
+iteration is aborted and the accumulator dictionary is not modified. The order
+of iteration is the natural order of the dictionary (typically the order in
+which the keys were added to the dictionary; the order is the same as that
+used in \fBdict for\fR).
+.RE
+.\" METHOD: merge
 .TP
 \fBdict merge \fR?\fIdictionaryValue ...\fR?
+.
 Return a dictionary that contains the contents of each of the
 \fIdictionaryValue\fR arguments.  Where two (or more) dictionaries
 contain a mapping for the same key, the resulting dictionary maps that
 key to the value according to the last dictionary on the command line
 containing a mapping for that key.
+.\" METHOD: remove
 .TP
 \fBdict remove \fIdictionaryValue \fR?\fIkey ...\fR?
+.
 Return a new dictionary that is a copy of an old one passed in as
 first argument except without mappings for each of the keys listed.
 It is legal for there to be no keys to remove, and it also legal for
 any of the keys to be removed to not be present in the input
 dictionary in the first place.
+.\" METHOD: replace
 .TP
 \fBdict replace \fIdictionaryValue \fR?\fIkey value ...\fR?
+.
 Return a new dictionary that is a copy of an old one passed in as
 first argument except with some values different or some extra
 key/value pairs added. It is legal for this command to be called with
 no key/value pairs, but illegal for this command to be called with a
 key but no value.
+.\" METHOD: set
 .TP
 \fBdict set \fIdictionaryVariable key \fR?\fIkey ...\fR? \fIvalue\fR
+.
 This operation takes the name of a variable containing a dictionary
 value and places an updated dictionary value in that variable
 containing a mapping from the given key to the given value. When
 multiple keys are present, this operation creates or updates a chain
-of nested dictionaries.
+of nested dictionaries. The updated dictionary value is returned.
+.VS TIP508
+If \fIdictionaryVariable\fR indicates an element that does not exist of an
+array that has a default value set, the default value and will be used as the
+value of the dictionary prior to the value insert/update operation.
+.VE TIP508
+.\" METHOD: size
 .TP
 \fBdict size \fIdictionaryValue\fR
+.
 Return the number of key/value mappings in the given dictionary value.
+.\" METHOD: unset
 .TP
 \fBdict unset \fIdictionaryVariable key \fR?\fIkey ...\fR?
+.
 This operation (the companion to \fBdict set\fR) takes the name of a
 variable containing a dictionary value and places an updated
 dictionary value in that variable that does not contain a mapping for
 the given key. Where multiple keys are present, this describes a path
 through nested dictionaries to the mapping to remove. At least one key
 must be specified, but the last key on the key-path need not exist.
-All other components on the path must exist.
+All other components on the path must exist. The updated dictionary
+value is returned.
+.VS TIP508
+If \fIdictionaryVariable\fR indicates an element that does not exist of an
+array that has a default value set, the default value and will be used as the
+value of the dictionary prior to the value remove operation.
+.VE TIP508
+.\" METHOD: update
 .TP
 \fBdict update \fIdictionaryVariable key varName \fR?\fIkey varName ...\fR? \fIbody\fR
+.
 Execute the Tcl script in \fIbody\fR with the value for each \fIkey\fR
 (as found by reading the dictionary value in \fIdictionaryVariable\fR)
 mapped to the variable \fIvarName\fR. There may be multiple
@@ -185,26 +295,36 @@ are silently discarded), even if the result of \fIbody\fR is an error
 or some other kind of exceptional exit. The result of \fBdict
 update\fR is (unless some kind of error occurs) the result of the
 evaluation of \fIbody\fR.
+.VS TIP508
+If \fIdictionaryVariable\fR indicates an element that does not exist of an
+array that has a default value set, the default value and will be used as the
+value of the dictionary prior to the update operation.
+.VE TIP508
 .RS
 .PP
 Each \fIvarName\fR is mapped in the scope enclosing the \fBdict update\fR;
 it is recommended that this command only be used in a local scope
-(\fBproc\fRedure or lambda term for \fBapply\fR). Because of
+(\fBproc\fRedure, lambda term for \fBapply\fR, or method). Because of
 this, the variables set by \fBdict update\fR will continue to
 exist after the command finishes (unless explicitly \fBunset\fR).
+.PP
 Note that the mapping of values to variables
 does not use traces; changes to the \fIdictionaryVariable\fR's
 contents only happen when \fIbody\fR terminates.
 .RE
+.\" METHOD: values
 .TP
 \fBdict values \fIdictionaryValue \fR?\fIglobPattern\fR?
+.
 Return a list of all values in the given dictionary value. If a
 pattern is supplied, only those values that match it (according to the
 rules of \fBstring match\fR) will be returned. The returned values
 will be in the order of that the keys associated with those values
 were inserted into the dictionary.
+.\" METHOD: with
 .TP
 \fBdict with \fIdictionaryVariable \fR?\fIkey ...\fR? \fIbody\fR
+.
 Execute the Tcl script in \fIbody\fR with the value for each key in
 \fIdictionaryVariable\fR mapped (in a manner similarly to \fBdict
 update\fR) to a variable with the same name. Where one or more
@@ -217,13 +337,19 @@ dictionary be discarded, and this also happens if the contents of
 dictionaries no longer exists. The result of \fBdict with\fR is
 (unless some kind of error occurs) the result of the evaluation of
 \fIbody\fR.
+.VS TIP508
+If \fIdictionaryVariable\fR indicates an element that does not exist of an
+array that has a default value set, the default value and will be used as the
+value of the dictionary prior to the updating operation.
+.VE TIP508
 .RS
 .PP
 The variables are mapped in the scope enclosing the \fBdict with\fR;
 it is recommended that this command only be used in a local scope
-(\fBproc\fRedure or lambda term for \fBapply\fR). Because of
+(\fBproc\fRedure, lambda term for \fBapply\fR, or method). Because of
 this, the variables set by \fBdict with\fR will continue to
 exist after the command finishes (unless explicitly \fBunset\fR).
+.PP
 Note that the mapping of values to variables does not use
 traces; changes to the \fIdictionaryVariable\fR's contents only happen
 when \fIbody\fR terminates.
@@ -311,16 +437,16 @@ Constructing and using nested dictionaries:
 set i 0
 puts "There are [\fBdict size\fR $employeeInfo] employees"
 \fBdict for\fR {id info} $employeeInfo {
-   puts "Employee #[incr i]: $id"
-   \fBdict with\fR info {
-      puts "   Name: $forenames $surname"
-      puts "   Address: $street, $city"
-      puts "   Telephone: $phone"
-   }
+    puts "Employee #[incr i]: $id"
+    \fBdict with\fR info {
+        puts "   Name: $forenames $surname"
+        puts "   Address: $street, $city"
+        puts "   Telephone: $phone"
+    }
 }
 # Another way to iterate and pick out names...
 foreach id [\fBdict keys\fR $employeeInfo] {
-   puts "Hello, [\fBdict get\fR $employeeInfo $id forenames]!"
+    puts "Hello, [\fBdict get\fR $employeeInfo $id forenames]!"
 }
 .CE
 .PP
@@ -330,7 +456,7 @@ A localizable version of \fBstring toupper\fR:
 # Set up the basic C locale
 set capital [\fBdict create\fR C [\fBdict create\fR]]
 foreach c [split {abcdefghijklmnopqrstuvwxyz} ""] {
-   \fBdict set\fR capital C $c [string toupper $c]
+    \fBdict set\fR capital C $c [string toupper $c]
 }
 
 # English locales can luckily share the "C" locale
@@ -349,22 +475,22 @@ Showing the detail of \fBdict with\fR:
 .PP
 .CS
 proc sumDictionary {varName} {
-   upvar 1 $varName vbl
-   foreach key [\fBdict keys\fR $vbl] {
-      # Manufacture an entry in the subdictionary
-      \fBdict set\fR vbl $key total 0
-      # Add the values and remove the old
-      \fBdict with\fR vbl $key {
-         set total [expr {$x + $y + $z}]
-         unset x y z
-      }
-   }
-   puts "last total was $total, for key $key"
+    upvar 1 $varName vbl
+    foreach key [\fBdict keys\fR $vbl] {
+        # Manufacture an entry in the subdictionary
+        \fBdict set\fR vbl $key total 0
+        # Add the values and remove the old
+        \fBdict with\fR vbl $key {
+            set total [expr {$x + $y + $z}]
+            unset x y z
+        }
+    }
+    puts "last total was $total, for key $key"
 }
 
 set myDict {
-   a {x 1 y 2 z 3}
-   b {x 6 y 5 z 4}
+    a {x 1 y 2 z 3}
+    b {x 6 y 5 z 4}
 }
 
 sumDictionary myDict
@@ -384,6 +510,9 @@ puts $foo
 #    prints: \fIa b foo {a b} bar 2 baz 3\fR
 .CE
 .SH "SEE ALSO"
-append(n), array(n), foreach(n), incr(n), list(n), lappend(n), set(n)
+append(n), array(n), foreach(n), incr(n), list(n), lappend(n), lmap(n), set(n)
 .SH KEYWORDS
-dictionary, create, update, lookup, iterate, filter
+dictionary, create, update, lookup, iterate, filter, map
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/encoding.n b/doc/encoding.n
index 1c0bfa9..43da934 100644
--- a/doc/encoding.n
+++ b/doc/encoding.n
@@ -1,9 +1,9 @@
 '\"
-'\" Copyright (c) 1998 by Scriptics Corporation.
-'\" 
+'\" Copyright (c) 1998 Scriptics Corporation.
+'\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH encoding n "8.1" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,35 +12,65 @@ encoding \- Manipulate encodings
 .SH SYNOPSIS
 \fBencoding \fIoption\fR ?\fIarg arg ...\fR?
 .BE
-
 .SH INTRODUCTION
 .PP
-Strings in Tcl are encoded using 16-bit Unicode characters.  Different
-operating system interfaces or applications may generate strings in
-other encodings such as Shift-JIS.  The \fBencoding\fR command helps
-to bridge the gap between Unicode and these other formats.
+Strings in Tcl are logically a sequence of Unicode characters.
+These strings are represented in memory as a sequence of bytes that
+may be in one of several encodings: modified UTF\-8 (which uses 1 to 4
+bytes per character), or a custom encoding start as 8 bit binary data.
+.PP
+Different operating system interfaces or applications may generate
+strings in other encodings such as Shift\-JIS.  The \fBencoding\fR
+command helps to bridge the gap between Unicode and these other
+formats.
 .SH DESCRIPTION
 .PP
 Performs one of several encoding related operations, depending on
 \fIoption\fR.  The legal \fIoption\fRs are:
+.\" METHOD: convertfrom
 .TP
 \fBencoding convertfrom\fR ?\fIencoding\fR? \fIdata\fR
-Convert \fIdata\fR to Unicode from the specified \fIencoding\fR.  The
-characters in \fIdata\fR are treated as binary data where the lower
-8-bits of each character is taken as a single byte.  The resulting
-sequence of bytes is treated as a string in the specified
-\fIencoding\fR.  If \fIencoding\fR is not specified, the current
-system encoding is used.
+.VS "TIP607, TIP656"
 .TP
-\fBencoding convertto\fR ?\fIencoding\fR? \fIstring\fR
-Convert \fIstring\fR from Unicode to the specified \fIencoding\fR.
-The result is a sequence of bytes that represents the converted
-string.  Each byte is stored in the lower 8-bits of a Unicode
-character.  If \fIencoding\fR is not specified, the current
+\fBencoding convertfrom\fR ?\fB-profile \fIprofile\fR? ?\fB-failindex var\fR? \fIencoding data\fR
+.VE "TIP607, TIP656"
+.
+Converts \fIdata\fR, which should be in binary string encoded as per
+\fIencoding\fR, to a Tcl string. If \fIencoding\fR is not specified, the current
 system encoding is used.
+.PP
+.VS "TIP607, TIP656"
+The \fB-profile\fR option determines the command behavior in the presence
+of conversion errors. See the \fBPROFILES\fR section below for details. Any premature
+termination of processing due to errors is reported through an exception if
+the \fB-failindex\fR option is not specified.
+.PP
+If the \fB-failindex\fR is specified, instead of an exception being raised
+on premature termination, the result of the conversion up to the point of the
+error is returned as the result of the command. In addition, the index
+of the source byte triggering the error is stored in \fBvar\fR. If no
+errors are encountered, the entire result of the conversion is returned and
+the value \fB-1\fR is stored in \fBvar\fR.
+.VE "TIP607, TIP656"
+.\" METHOD: convertto
+.TP
+\fBencoding convertto\fR ?\fIencoding\fR? \fIdata\fR
+.TP
+\fBencoding convertto\fR ?\fB-profile \fIprofile\fR? ?\fB-failindex var\fR? \fIencoding data\fR
+.
+Convert \fIstring\fR to the specified \fIencoding\fR. The result is a Tcl binary
+string that contains the sequence of bytes representing the converted string in
+the specified encoding. If \fIencoding\fR is not specified, the current system
+encoding is used.
+.PP
+.VS "TIP607, TIP656"
+The \fB-profile\fR and \fB-failindex\fR options have the same effect as
+described for the \fBencoding convertfrom\fR command.
+.VE "TIP607, TIP656"
+.\" METHOD: dirs
 .TP
 \fBencoding dirs\fR ?\fIdirectoryList\fR?
-.VS 8.5
+.
 Tcl can load encoding data files from the file system that describe
 additional encodings for it to work with. This command sets the search
 path for \fB*.enc\fR encoding data files to the list of directories
@@ -50,44 +80,164 @@ search path. It is an error for \fIdirectoryList\fR to not be a valid
 list. If, when a search for an encoding data file is happening, an
 element in \fIdirectoryList\fR does not refer to a readable,
 searchable directory, that element is ignored.
-.VE 8.5
+.\" METHOD: names
 .TP
 \fBencoding names\fR
+.
 Returns a list containing the names of all of the encodings that are
-currently available. 
+currently available.
+The encodings
+.QW utf-8
+and
+.QW iso8859-1
+are guaranteed to be present in the list.
+.\" METHOD: profiles
+.TP
+\fBencoding profiles\fR
+.VS TIP656
+Returns a list of the names of encoding profiles. See \fBPROFILES\fR below.
+.VE TIP656
+.\" METHOD: system
 .TP
 \fBencoding system\fR ?\fIencoding\fR?
+.
 Set the system encoding to \fIencoding\fR. If \fIencoding\fR is
 omitted then the command returns the current system encoding.  The
 system encoding is used whenever Tcl passes strings to system calls.
-.SH EXAMPLE
-.PP
-It is common practice to write script files using a text editor that
-produces output in the euc-jp encoding, which represents the ASCII
-characters as singe bytes and Japanese characters as two bytes.  This
-makes it easy to embed literal strings that correspond to non-ASCII
-characters by simply typing the strings in place in the script.
-However, because the \fBsource\fR command always reads files using the
-current system encoding, Tcl will only source such files correctly
-when the encoding used to write the file is the same.  This tends not
-to be true in an internationalized setting.  For example, if such a
-file was sourced in North America (where the ISO8859-1 is normally
-used), each byte in the file would be treated as a separate character
-that maps to the 00 page in Unicode.  The resulting Tcl strings will
-not contain the expected Japanese characters.  Instead, they will
-contain a sequence of Latin-1 characters that correspond to the bytes
-of the original string.  The \fBencoding\fR command can be used to
-convert this string to the expected Japanese Unicode characters.  For
-example,
+.\" Do not put .VS on whole section as that messes up the bullet list alignment
+.SH PROFILES
+.PP
+.VS TIP656
+Operations involving encoding transforms may encounter several types of
+errors such as invalid sequences in the source data, characters that
+cannot be encoded in the target encoding and so on.
+A \fIprofile\fR prescribes the strategy for dealing with such errors
+in one of two ways:
+.VE TIP656
+.
+.IP \(bu
+.VS TIP656
+Terminating further processing of the source data. The profile does not
+determine how this premature termination is conveyed to the caller. By default,
+this is signalled by raising an exception. If the \fB-failindex\fR option
+is specified, errors are reported through that mechanism.
+.VE TIP656
+.IP \(bu
+.VS TIP656
+Continue further processing of the source data using a fallback strategy such
+as replacing or discarding the offending bytes in a profile-defined manner.
+.VE TIP656
+.PP
+The following profiles are currently implemented with \fBstrict\fR being
+the default if the \fB-profile\fR is not specified.
+.VS TIP656
+.TP
+\fBstrict\fR
+.
+The \fBstrict\fR profile always stops processing when an conversion error is
+encountered. The error is signalled via an exception or the \fB-failindex\fR
+option mechanism. The \fBstrict\fR profile implements a Unicode standard
+conformant behavior.
+.TP
+\fBtcl8\fR
+.
+The \fBtcl8\fR profile always follows the first strategy above and corresponds
+to the behavior of encoding transforms in Tcl 8.6. When converting from an
+external encoding \fBother than utf-8\fR to Tcl strings with the \fBencoding
+convertfrom\fR command, invalid bytes are mapped to their numerically equivalent
+code points. For example, the byte 0x80 which is invalid in ASCII would be
+mapped to code point U+0080. When converting from \fButf-8\fR, invalid bytes
+that are defined in CP1252 are mapped to their Unicode equivalents while those
+that are not fall back to the numerical equivalents. For example, byte 0x80 is
+defined by CP1252 and is therefore mapped to its Unicode equivalent U+20AC while
+byte 0x81 which is not defined by CP1252 is mapped to U+0081. As an additional
+special case, the sequence 0xC0 0x80 is mapped to U+0000.
+
+When converting from Tcl strings to an external encoding format using
+\fBencoding convertto\fR, characters that cannot be represented in the
+target encoding are replaced by an encoding-dependent character, usually
+the question mark \fB?\fR.
+.TP
+\fBreplace\fR
+.
+Like the \fBtcl8\fR profile, the \fBreplace\fR profile always continues
+processing on conversion errors but follows a Unicode standard conformant
+method for substitution of invalid source data.
+
+When converting an encoded byte sequence to a Tcl string using
+\fBencoding convertfrom\fR, invalid bytes
+are replaced by the U+FFFD REPLACEMENT CHARACTER code point.
+
+When encoding a Tcl string with \fBencoding convertto\fR,
+code points that cannot be represented in the
+target encoding are transformed to an encoding-specific fallback character,
+U+FFFD REPLACEMENT CHARACTER for UTF targets and generally `?` for other
+encodings.
+.VE TIP656
+.SH EXAMPLES
+.PP
+These examples use the utility proc below that prints the Unicode code points
+comprising a Tcl string.
+.PP
 .CS
-set s [\fBencoding convertfrom\fR euc-jp "\exA4\exCF"]
+proc codepoints s {join [lmap c [split $s {}] {
+    string cat U+ [format %.6X [scan $c %c]]}]
+}
 .CE
-would return the Unicode string
+.PP
+Example 1: convert a byte sequence in Japanese euc-jp encoding to a TCL string:
+.PP
+.CS
+% codepoints [\fBencoding convertfrom\fR euc-jp "\exA4\exCF"]
+U+00306F
+.CE
+.PP
+The result is the unicode codepoint
 .QW "\eu306F" ,
 which is the Hiragana letter HA.
-
+.VS "TIP607, TIP656"
+.PP
+Example 2: Error handling based on profiles:
+.PP
+The letter \fBA\fR is Unicode character U+0041 and the byte "\ex80" is invalid
+in ASCII encoding.
+.PP
+.CS
+% codepoints [\fBencoding convertfrom\fR -profile tcl8 ascii A\ex80]
+U+000041 U+000080
+% codepoints [\fBencoding convertfrom\fR -profile replace ascii A\ex80]
+U+000041 U+00FFFD
+% codepoints [\fBencoding convertfrom\fR -profile strict ascii A\ex80]
+unexpected byte sequence starting at index 1: '\ex80'
+.CE
+.PP
+Example 3: Get partial data and the error location:
+.PP
+.CS
+% codepoints [\fBencoding convertfrom\fR -profile strict -failindex idx ascii AB\ex80]
+U+000041 U+000042
+% set idx
+2
+.CE
+.PP
+Example 4: Encode a character that is not representable in ISO8859-1:
+.PP
+.CS
+% \fBencoding convertto\fR iso8859-1 A\eu0141
+A?
+% \fBencoding convertto\fR -profile strict iso8859-1 A\eu0141
+unexpected character at index 1: 'U+000141'
+% \fBencoding convertto\fR -profile strict -failindex idx iso8859-1 A\eu0141
+A
+% set idx
+1
+.CE
+.VE "TIP607, TIP656"
+.PP
 .SH "SEE ALSO"
-Tcl_GetEncoding(3)
-
+Tcl_GetEncoding(3), fconfigure(n)
 .SH KEYWORDS
-encoding
+encoding, unicode
+.\" Local Variables:
+.\" mode: nroff
+.\" End:
diff --git a/doc/eof.n b/doc/eof.n
index f382fdf..36f4920 100644
--- a/doc/eof.n
+++ b/doc/eof.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH eof n 7.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,50 +12,15 @@
 .SH NAME
 eof \- Check for end of file condition on channel
 .SH SYNOPSIS
-\fBeof \fIchannelId\fR
+\fBeof \fIchannel\fR
 .BE
-
 .SH DESCRIPTION
 .PP
-Returns 1 if an end of file condition occurred during the most
-recent input operation on \fIchannelId\fR (such as \fBgets\fR),
-0 otherwise.
-.PP
-\fIChannelId\fR must be an identifier for an open channel such as a
-Tcl standard channel (\fBstdin\fR, \fBstdout\fR, or \fBstderr\fR),
-the return value from an invocation of \fBopen\fR or \fBsocket\fR, or
-the result of a channel creation command provided by a Tcl extension.
-.SH EXAMPLES
-Read and print out the contents of a file line-by-line:
-.CS
-set f [open somefile.txt]
-while {1} {
-    set line [gets $f]
-    if {[\fBeof\fR $f]} {
-        close $f
-        break
-    }
-    puts "Read line: $line"
-}
-.CE
-.PP
-Read and print out the contents of a file by fixed-size records:
-.CS
-set f [open somefile.dat]
-fconfigure $f -translation binary
-set recordSize 40
-while {1} {
-    set record [read $f $recordSize]
-    if {[\fBeof\fR $f]} {
-        close $f
-        break
-    }
-    puts "Read record: $record"
-}
-.CE
-
+The \fBeof\fR command has been superceded by the \fBchan eof\fR
+command which supports the same syntax and options.
 .SH "SEE ALSO"
-file(n), open(n), close(n), fblocked(n), Tcl_StandardChannels(3)
-
-.SH KEYWORDS
-channel, end of file
+chan(n)
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/error.n b/doc/error.n
index ff01a6f..9ff4298 100644
--- a/doc/error.n
+++ b/doc/error.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH error n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,7 +14,6 @@ error \- Generate an error
 .SH SYNOPSIS
 \fBerror \fImessage\fR ?\fIinfo\fR? ?\fIcode\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 Returns a \fBTCL_ERROR\fR code, which causes command interpretation to be
@@ -28,7 +27,7 @@ the Tcl interpreter adds information to the \fB\-errorinfo\fR
 return option.  If the \fIinfo\fR argument is present, it is
 used to initialize the \fB\-errorinfo\fR return options and
 the first increment of unwind information
-will not be added by the Tcl interpreter.  
+will not be added by the Tcl interpreter.
 In other
 words, the command containing the \fBerror\fR command will not appear
 in the stack trace; in its place will be \fIinfo\fR.
@@ -37,18 +36,21 @@ with the \fBcatch\fR command:
 if a caught error cannot be handled successfully, \fIinfo\fR can be used
 to return a stack trace reflecting the original point of occurrence
 of the error:
+.PP
 .CS
-\fBcatch {...} errMsg
+catch {...} errMsg
 set savedInfo $::errorInfo
 \&...
-error $errMsg $savedInfo\fR
+\fBerror\fR $errMsg $savedInfo
 .CE
+.PP
 When working with Tcl 8.5 or later, the following code
 should be used instead:
+.PP
 .CS
-\fBcatch {...} errMsg options
+catch {...} errMsg options
 \&...
-return -options $options $errMsg\fR
+return -options $options $errMsg
 .CE
 .PP
 If the \fIcode\fR argument is present, then its value is stored
@@ -58,15 +60,18 @@ of the error in cases where such information is available; see
 the \fBreturn\fR manual page for information on the proper format
 for this option's value.
 .SH EXAMPLE
+.PP
 Generate an error if a basic mathematical operation fails:
+.PP
 .CS
 if {1+2 != 3} {
     \fBerror\fR "something is very wrong with addition"
 }
 .CE
-
 .SH "SEE ALSO"
 catch(n), return(n)
-
 .SH KEYWORDS
-error
+error, exception
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/eval.n b/doc/eval.n
index d68db95..018628b 100644
--- a/doc/eval.n
+++ b/doc/eval.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH eval n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,7 +14,6 @@ eval \- Evaluate a Tcl script
 .SH SYNOPSIS
 \fBeval \fIarg \fR?\fIarg ...\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 \fBEval\fR takes one or more arguments, which together comprise a Tcl
@@ -23,14 +22,24 @@ script containing one or more commands.
 fashion as the \fBconcat\fR command, passes the concatenated string to the
 Tcl interpreter recursively, and returns the result of that
 evaluation (or any error generated by it).
+.PP
 Note that the \fBlist\fR command quotes sequences of words in such a
-way that they are not further expanded by the \fBeval\fR command.
+way that they are not further expanded by the \fBeval\fR command;
+for \fIany\fR values, $a, $b, and $c, these two lines are effectively
+equivalent:
+.PP
+.CS
+\fBeval\fR [list $a $b $c]
+$a $b $c
+.CE
 .SH EXAMPLES
+.PP
 Often, it is useful to store a fragment of a script in a variable and
 execute it later on with extra values appended. This technique is used
 in a number of places throughout the Tcl core (e.g. in \fBfcopy\fR,
 \fBlsort\fR and \fBtrace\fR command callbacks). This example shows how
 to do this using core Tcl commands:
+.PP
 .CS
 set script {
     puts "logging now"
@@ -48,35 +57,42 @@ for {set i 0} {$i<10} {incr i} {
 }
 .CE
 .PP
-.VS 8.5
 Note that in the most common case (where the script fragment is
 actually just a list of words forming a command prefix), it is better
 to use \fB{*}$script\fR when doing this sort of invocation
 pattern.  It is less general than the \fBeval\fR command, and hence
 easier to make robust in practice.
-.VE 8.5
 The following procedure acts in a way that is analogous to the
 \fBlappend\fR command, except it inserts the argument values at the
 start of the list in the variable:
+.PP
 .CS
 proc lprepend {varName args} {
-   upvar 1 $varName var
-   # Ensure that the variable exists and contains a list
-   lappend var
-   # Now we insert all the arguments in one go
-   set var [\fBeval\fR [list linsert $var 0] $args]
+    upvar 1 $varName var
+    # Ensure that the variable exists and contains a list
+    lappend var
+    # Now we insert all the arguments in one go
+    set var [\fBeval\fR [list linsert $var 0] $args]
 }
 .CE
-.VS 8.5
+.PP
 However, the last line would now normally be written without
 \fBeval\fR, like this:
+.PP
 .CS
 set var [linsert $var 0 {*}$args]
 .CE
-.VE 8.5
-
+.PP
+or indeed like this:
+.PP
+.CS
+set var [list {*}$args {*}$var]
+.CE
 .SH "SEE ALSO"
-catch(n), concat(n), error(n), interp(n), list(n), namespace(n), subst(n), tclvars(n), uplevel(n)
-
+catch(n), concat(n), error(n), errorCode(n), errorInfo(n), interp(n), list(n),
+namespace(n), subst(n), uplevel(n)
 .SH KEYWORDS
 concatenate, evaluate, script
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/exec.n b/doc/exec.n
index 89c6413..df9b365 100644
--- a/doc/exec.n
+++ b/doc/exec.n
@@ -5,7 +5,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH exec n 8.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -13,9 +13,8 @@
 .SH NAME
 exec \- Invoke subprocesses
 .SH SYNOPSIS
-\fBexec \fR?\fIswitches\fR? \fIarg \fR?\fIarg ...\fR?
+\fBexec \fR?\fIswitches\fR? \fIarg \fR?\fIarg ...\fR? ?\fB&\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 This command treats its arguments as the specification
@@ -32,18 +31,22 @@ If the initial arguments to \fBexec\fR start with \fB\-\fR then
 they are treated as command-line switches and are not part
 of the pipeline specification.  The following switches are
 currently supported:
+.\" OPTION: -ignorestderr
 .TP 13
 \fB\-ignorestderr\fR
-.VS 8.5
+.
 Stops the \fBexec\fR command from treating the output of messages to the
 pipeline's standard error channel as an error case.
-.VE 8.5
+.\" OPTION: -keepnewline
 .TP 13
 \fB\-keepnewline\fR
+.
 Retains a trailing newline in the pipeline's output.
 Normally a trailing newline will be deleted.
+.\" OPTION: --
 .TP 13
 \fB\-\|\-\fR
+.
 Marks the end of switches.  The argument following this one will
 be treated as the first \fIarg\fR even if it starts with a \fB\-\fR.
 .PP
@@ -52,71 +55,84 @@ described below then it is used by \fBexec\fR to control the
 flow of input and output among the subprocess(es).
 Such arguments will not be passed to the subprocess(es).  In forms
 such as
-.QW "\fB<\fR \fIfileName\fR" ,
+.QW "\fB<\fI fileName\fR" ,
 \fIfileName\fR may either be in a separate argument from
 .QW \fB<\fR
 or in the same argument with no intervening space (i.e.
 .QW \fB<\fIfileName\fR ).
 .TP 15
 \fB|\fR
+.
 Separates distinct commands in the pipeline.  The standard output
 of the preceding command will be piped into the standard input
 of the next command.
 .TP 15
 \fB|&\fR
+.
 Separates distinct commands in the pipeline.  Both standard output
 and standard error of the preceding command will be piped into
 the standard input of the next command.
 This form of redirection overrides forms such as 2> and >&.
 .TP 15
 \fB<\0\fIfileName\fR
+.
 The file named by \fIfileName\fR is opened and used as the standard
 input for the first command in the pipeline.
 .TP 15
 \fB<@\0\fIfileId\fR
+.
 \fIFileId\fR must be the identifier for an open file, such as the return
 value from a previous call to \fBopen\fR.
 It is used as the standard input for the first command in the pipeline.
 \fIFileId\fR must have been opened for reading.
 .TP 15
 \fB<<\0\fIvalue\fR
+.
 \fIValue\fR is passed to the first command as its standard input.
 .TP 15
 \fB>\0\fIfileName\fR
+.
 Standard output from the last command is redirected to the file named
 \fIfileName\fR, overwriting its previous contents.
 .TP 15
 \fB2>\0\fIfileName\fR
+.
 Standard error from all commands in the pipeline is redirected to the
 file named \fIfileName\fR, overwriting its previous contents.
 .TP 15
 \fB>&\0\fIfileName\fR
+.
 Both standard output from the last command and standard error from all
 commands are redirected to the file named \fIfileName\fR, overwriting
 its previous contents.
 .TP 15
 \fB>>\0\fIfileName\fR
+.
 Standard output from the last command is
 redirected to the file named \fIfileName\fR, appending to it rather
 than overwriting it.
 .TP 15
 \fB2>>\0\fIfileName\fR
+.
 Standard error from all commands in the pipeline is
 redirected to the file named \fIfileName\fR, appending to it rather
 than overwriting it.
 .TP 15
 \fB>>&\0\fIfileName\fR
+.
 Both standard output from the last command and standard error from
 all commands are redirected to the file named \fIfileName\fR,
 appending to it rather than overwriting it.
 .TP 15
 \fB>@\0\fIfileId\fR
+.
 \fIFileId\fR must be the identifier for an open file, such as the return
 value from a previous call to \fBopen\fR.
 Standard output from the last command is redirected to \fIfileId\fR's
 file, which must have been opened for writing.
 .TP 15
 \fB2>@\0\fIfileId\fR
+.
 \fIFileId\fR must be the identifier for an open file, such as the return
 value from a previous call to \fBopen\fR.
 Standard error from all commands in the pipeline is
@@ -124,11 +140,13 @@ redirected to \fIfileId\fR's file.
 The file must have been opened for writing.
 .TP 15
 \fB2>@1\0\fR
+.
 Standard error from all commands in the pipeline is redirected to the
 command result.  This operator is only valid at the end of the command
 pipeline.
 .TP 15
 \fB>&@\0\fIfileId\fR
+.
 \fIFileId\fR must be the identifier for an open file, such as the return
 value from a previous call to \fBopen\fR.
 Both standard output from the last command and standard error from
@@ -137,12 +155,9 @@ The file must have been opened for writing.
 .PP
 If standard output has not been redirected then the \fBexec\fR
 command returns the standard output from the last command
-in the pipeline,
-.VS 8.5
-unless
+in the pipeline, unless
 .QW 2>@1
 was specified, in which case standard error is included as well.
-.VE 8.5
 If any of the commands in the pipeline exit abnormally or
 are killed or suspended, then \fBexec\fR will return an error
 and the error message will include the pipeline's output followed by
@@ -151,9 +166,7 @@ error messages describing the abnormal terminations; the
 about the last abnormal termination encountered.
 If any of the commands writes to its standard error file and that
 standard error is not redirected
-.VS 8.5
 and \fB\-ignorestderr\fR is not specified,
-.VE 8.5
 then \fBexec\fR will return an error;  the error message
 will include the pipeline's standard output, followed by messages
 about abnormal terminations (if any), followed by the standard error
@@ -188,7 +201,7 @@ the commands in the pipeline will go to the application's
 standard error file unless redirected.
 .PP
 The first word in each command is taken as the command name;
-tilde-substitution is performed on it, and if the result contains
+if the result contains
 no slashes then the directories
 in the PATH environment variable are searched for
 an executable by the given name.
@@ -218,16 +231,46 @@ Although it is the common escape algorithm, but, in fact, the way how the
 executable parses the command-line (resp. splits it into single arguments)
 is decisive.
 .PP
-Unfortunately, there is currently no way to supply newline character within 
-an argument to the batch files (\fB.cmd\fR or \fB.bat\fR) or to the command 
+Unfortunately, there is currently no way to supply newline character within
+an argument to the batch files (\fB.cmd\fR or \fB.bat\fR) or to the command
 processor (\fBcmd.exe /c\fR), because this causes truncation of command-line
-(also the argument chain) on the first newline character. 
+(also the argument chain) on the first newline character.
 But it works properly with an executable (using CommandLineToArgv, etc).
 .PP
+\fBArgument quoting\fR
+.RS
+The arguments of the \fBexec\fR command are mapped to the arguments of the called
+program. Additional quote characters (\fB"\fR) are automatically  added around
+arguments if expected. Special characters are escaped by inserting backslash
+characters.
+.PP
+The MS-Windows environment does execute programs mentioned in the arguments and
+called batch files (conspec) replace environment variables, which may have side
+effects (vulnerabilities) or break any already existing quoting (for example,
+if the environment variable contains a special character like a \fB"\fR).
+Examples are:
+.CS
+% exec my-echo.cmd {test&whoami}
+  test
+  mylogin
+% exec my-echo.cmd "ENV X:%X%"
+  ENV X: CONTENT OF X
+.CE
+The following formatting is automatically performed on any
+argument item to avoid subprogram execution:
+Any special character argument containing a special character (\fB&\fR, \fB|\fR,
+\fB^\fR, \fB<\fR, \fB>\fR, \fB!\fR, \fB(\fR, \fB)\fR, \fB(\fR, \fB%\fR)
+is automatically enclosed in quotes (\fB"\fR). Any data quote is escaped by
+insertion of backslash characters.
+.PP
+The automatic resolving of environment variables using "\fB%var%\fR" is critical,
+but has more use than danger and is not escaped.
+.RE
+.PP
 The Tk console text widget does not provide real standard IO capabilities.
 Under Tk, when redirecting from standard input, all applications will see an
 immediate end-of-file; information redirected to standard output or standard
-error will be discarded.  
+error will be discarded.
 .PP
 Either forward or backward slashes are accepted as path separators for
 arguments to Tcl commands.  When executing an application, the path name
@@ -238,16 +281,7 @@ backslashes only in paths.  Any arguments to an application that specify a
 path name with forward slashes will not automatically be converted to use
 the backslash character.  If an argument contains forward slashes as the
 path separator, it may or may not be recognized as a path name, depending on
-the program.  
-.PP
-Additionally, when calling a 16-bit DOS or Windows 3.X application, all path
-names must use the short, cryptic, path format (e.g., using
-.QW applba~1.def
-instead of
-.QW applbakery.default ),
-which can be obtained with the
-.QW "\fBfile attributes \fIfileName \fB\-shortname\fR"
-command.
+the program.
 .PP
 Two or more forward or backward slashes in a row in a path refer to a
 network path.  For example, a simple concatenation of the root directory
@@ -276,28 +310,23 @@ present, as is done when launching applications under wish.  It is desirable
 to have console applications hidden and detached.  This is a designed-in
 limitation as \fBexec\fR wants to communicate over pipes.  The Expect
 extension addresses this issue when communicating with a TUI application.
-.RE
-.TP
-\fBWindows NT\fR
-.
+.PP
 When attempting to execute an application, \fBexec\fR first searches for
-the name as it was specified.  Then, in order, \fB.com\fR, \fB.exe\fR, and
-\fB.bat\fR are appended to the end of the specified name and it searches
+the name as it was specified.  Then, in order,
+\fB.com\fR, \fB.exe\fR, \fB.bat\fR and \fB.cmd\fR
+are appended to the end of the specified name and it searches
 for the longer name.  If a directory name was not specified as part of the
 application name, the following directories are automatically searched in
 order when attempting to locate the application:
-.RS
-.IP \(bu
+.IP \(bu 3
 The directory from which the Tcl executable was loaded.
-.IP \(bu
+.IP \(bu 3
 The current directory.
-.IP \(bu
-The Windows NT 32-bit system directory.
-.IP \(bu
-The Windows NT 16-bit system directory.
-.IP \(bu
-The Windows NT home directory.
-.IP \(bu
+.IP \(bu 3
+The Windows 32-bit system directory.
+.IP \(bu 3
+The Windows home directory.
+.IP \(bu 3
 The directories listed in the path.
 .PP
 In order to execute shell built-in commands like \fBdir\fR and \fBcopy\fR,
@@ -306,77 +335,18 @@ the caller must prepend the desired command with
 because built-in commands are not implemented using executables.
 .RE
 .TP
-\fBWindows 9x\fR
+\fBUnix\fR (including macOS)
 .
-When attempting to execute an application, \fBexec\fR first searches for
-the name as it was specified.  Then, in order, \fB.com\fR, \fB.exe\fR, and
-\fB.bat\fR are appended to the end of the specified name and it searches
-for the longer name.  If a directory name was not specified as part of the
-application name, the following directories are automatically searched in
-order when attempting to locate the application:
-.RS
-.IP \(bu
-The directory from which the Tcl executable was loaded.
-.IP \(bu
-The current directory.
-.IP \(bu
-The Windows 9x system directory.
-.IP \(bu
-The Windows 9x home directory.
-.IP \(bu
-The directories listed in the path.
-.RE
-.RS
-.PP
-In order to execute shell built-in commands like \fBdir\fR and \fBcopy\fR,
-the caller must prepend the desired command with
-.QW "\fBcommand.com /c\0\fR"
-because built-in commands are not implemented using executables.
-.PP
-Once a 16-bit DOS application has read standard input from a console and 
-then quit, all subsequently run 16-bit DOS applications will see the 
-standard input as already closed.  32-bit applications do not have this
-problem and will run correctly, even after a 16-bit DOS application thinks 
-that standard input is closed.  There is no known workaround for this bug
-at this time.
-.PP
-Redirection between the \fBNUL:\fR device and a 16-bit application does not
-always work.  When redirecting from \fBNUL:\fR, some applications may hang,
-others will get an infinite stream of
-.QW 0x01
-bytes, and some will actually
-correctly get an immediate end-of-file; the behavior seems to depend upon 
-something compiled into the application itself.  When redirecting greater than
-4K or so to \fBNUL:\fR, some applications will hang.  The above problems do not
-happen with 32-bit applications.  
-.PP
-All DOS 16-bit applications are run synchronously.  All standard input from
-a pipe to a 16-bit DOS application is collected into a temporary file; the
-other end of the pipe must be closed before the 16-bit DOS application
-begins executing.  All standard output or error from a 16-bit DOS
-application to a pipe is collected into temporary files; the application
-must terminate before the temporary files are redirected to the next stage
-of the pipeline.  This is due to a workaround for a Windows 95 bug in the
-implementation of pipes, and is how the standard Windows 95 DOS shell
-handles pipes itself.
-.PP
-Certain applications, such as \fBcommand.com\fR, should not be executed
-interactively.  Applications which directly access the console window,
-rather than reading from their standard input and writing to their standard
-output may fail, hang Tcl, or even hang the system if their own private
-console window is not available to them.
-.RE
-.TP
-\fBUnix\fR\0\0\0\0\0\0\0
 The \fBexec\fR command is fully functional and works as described.
 .SH "UNIX EXAMPLES"
-Here are some examples of the use of the \fBexec\fR command on Unix.
 .PP
+Here are some examples of the use of the \fBexec\fR command on Unix.
 To execute a simple program and get its result:
 .PP
 .CS
 \fBexec\fR uname -a
 .CE
+.SS "WORKING WITH NON-ZERO RESULTS"
 .PP
 To execute a program that can return a non-zero result, you should
 wrap the call to \fBexec\fR in \fBcatch\fR and check the contents
@@ -385,15 +355,30 @@ of the \fB\-errorcode\fR return option if you have an error:
 .CS
 set status 0
 if {[catch {\fBexec\fR grep foo bar.txt} results options]} {
-   set details [dict get $options -errorcode]
-   if {[lindex $details 0] eq "CHILDSTATUS"} {
-      set status [lindex $details 2]
-   } else {
-      # Some kind of unexpected failure
-   }
+    set details [dict get $options -errorcode]
+    if {[lindex $details 0] eq "CHILDSTATUS"} {
+        set status [lindex $details 2]
+    } else {
+        # Some other error; regenerate it to let caller handle
+        return -options $options -level 0 $results
+    }
 }
 .CE
 .PP
+This is more easily written using the \fBtry\fR command, as that makes
+it simpler to trap specific types of errors. This is
+done using code like this:
+.PP
+.CS
+try {
+    set results [\fBexec\fR grep foo bar.txt]
+    set status 0
+} trap CHILDSTATUS {results options} {
+    set status [lindex [dict get $options -errorcode] 2]
+}
+.CE
+.SS "WORKING WITH QUOTED ARGUMENTS"
+.PP
 When translating a command from a Unix shell invocation, care should
 be taken over the fact that single quote characters have no special
 significance to Tcl.  Thus:
@@ -407,6 +392,7 @@ would be translated into something like:
 .CS
 \fBexec\fR awk {{sum += $1} END {print sum}} numbers.list
 .CE
+.SS "WORKING WITH GLOBBING"
 .PP
 If you are converting invocations involving shell globbing, you should
 remember that Tcl does not handle globbing or expand things into
@@ -416,9 +402,25 @@ this:
 .CS
 \fBexec\fR ls -l {*}[glob *.tcl]
 .CE
+.SS "WORKING WITH USER-SUPPLIED SHELL SCRIPT FRAGMENTS"
+.PP
+One useful technique can be to expose to users of a script the ability
+to specify a fragment of shell script to execute that will have some
+data passed in on standard input that was produced by the Tcl program.
+This is a common technique for using the \fIlpr\fR program for
+printing. By far the simplest way of doing this is to pass the user's
+script to the user's shell for processing, as this avoids a lot of
+complexity with parsing other languages.
+.PP
+.CS
+set lprScript [\fIget from user...\fR]
+set postscriptData [\fIgenerate somehow...\fR]
+
+\fBexec\fR $env(SHELL) -c $lprScript << $postscriptData
+.CE
 .SH "WINDOWS EXAMPLES"
-Here are some examples of the use of the \fBexec\fR command on Windows.
 .PP
+Here are some examples of the use of the \fBexec\fR command on Windows.
 To start an instance of \fInotepad\fR editing a file without waiting
 for the user to finish editing the file:
 .PP
@@ -431,14 +433,7 @@ To print a text file using \fInotepad\fR:
 .CS
 \fBexec\fR notepad /p myfile.txt
 .CE
-.PP
-To print a text file in a directory other than the current one using
-\fInotepad\fR, you need to use \fBfile nativename\fR to convert the name into
-a form that will be understood by the other program:
-.PP
-.CS
-\fBexec\fR notepad /p [file nativename some/dir/myfile.txt]
-.CE
+.SS "WORKING WITH CONSOLE PROGRAMS"
 .PP
 If a program calls other programs, such as is common with compilers,
 then you may need to resort to batch files to hide the console windows
@@ -459,6 +454,7 @@ or like another variant using single parameters:
 .CS
 @gcc %1 %2 %3 %4 %5 %6 %7 %8 %9
 .CE
+.SS "WORKING WITH COMMAND BUILT-INS"
 .PP
 Sometimes you need to be careful, as different programs may have the
 same name and be in the path. It can then happen that typing a command
@@ -477,7 +473,23 @@ the \fBglob\fR command.)  To do that, use this:
 .CS
 \fBexec\fR {*}[auto_execok dir] *.tcl
 .CE
+.SS "WORKING WITH NATIVE FILENAMES"
+.PP
+Many programs on Windows require filename arguments to be passed in with
+backslashes as pathname separators. This is done with the help of the
+\fBfile nativename\fR command. For example, to make a directory (on NTFS)
+encrypted so that only the current user can access it requires use of
+the \fICIPHER\fR command, like this:
+.PP
+.CS
+set secureDir [file join [file home] Desktop/SecureDirectory]
+file mkdir $secureDir
+\fBexec\fR CIPHER /e /s:[file nativename $secureDir]
+.CE
 .SH "SEE ALSO"
-error(n), open(n)
+error(n), file(n), open(n)
 .SH KEYWORDS
 execute, pipeline, redirection, subprocess
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/exit.n b/doc/exit.n
index cce449f..5744ffe 100644
--- a/doc/exit.n
+++ b/doc/exit.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH exit n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,7 +14,6 @@ exit \- End the application
 .SH SYNOPSIS
 \fBexit \fR?\fIreturnCode\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 Terminate the process, returning \fIreturnCode\fR to the
@@ -22,10 +21,12 @@ system as the exit status.
 If \fIreturnCode\fR is not specified then it defaults
 to 0.
 .SH EXAMPLE
+.PP
 Since non-zero exit codes are usually interpreted as error cases by
 the calling process, the \fBexit\fR command is an important part of
 signaling that something fatal has gone wrong. This code fragment is
 useful in scripts to act as a general problem trap:
+.PP
 .CS
 proc main {} {
     # ... put the real main code in here ...
@@ -33,7 +34,7 @@ proc main {} {
 
 if {[catch {main} msg options]} {
     puts stderr "unexpected script error: $msg"
-    if {[info exist env(DEBUG)]} {
+    if {[info exists env(DEBUG)]} {
         puts stderr "---- BEGIN TRACE ----"
         puts stderr [dict get $options -errorinfo]
         puts stderr "---- END TRACE ----"
@@ -43,9 +44,11 @@ if {[catch {main} msg options]} {
     \fBexit\fR 2
 }
 .CE
-
 .SH "SEE ALSO"
 exec(n)
-
 .SH KEYWORDS
-exit, process
+abort, exit, process
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/expr.n b/doc/expr.n
index aefaf0b..c626752 100644
--- a/doc/expr.n
+++ b/doc/expr.n
@@ -1,11 +1,11 @@
 '\"
 '\" Copyright (c) 1993 The Regents of the University of California.
 '\" Copyright (c) 1994-2000 Sun Microsystems, Inc.
-'\" Copyright (c) 2005 by Kevin B. Kenny <kennykb@acm.org>. All rights reserved
+'\" Copyright (c) 2005 Kevin B. Kenny <kennykb@acm.org>. All rights reserved
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH expr n 8.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -17,131 +17,163 @@ expr \- Evaluate an expression
 .BE
 .SH DESCRIPTION
 .PP
-Concatenates \fIarg\fRs (adding separator spaces between them),
-evaluates the result as a Tcl expression, and returns the value.
-The operators permitted in Tcl expressions include a subset of
+Concatenates \fIarg\fRs, separated by a space, into an expression, and evaluates
+that expression, returning its value.
+The operators permitted in an expression include a subset of
 the operators permitted in C expressions.  For those operators
 common to both Tcl and C, Tcl applies the same meaning and precedence
 as the corresponding C operators.
-Expressions almost always yield numeric results
-(integer or floating-point values).
+The value of an expression is often a numeric result, either an integer or a
+floating-point value, but may also be a non-numeric value.
 For example, the expression
 .PP
 .CS
-\fBexpr 8.2 + 6\fR
+\fBexpr\fR 8.2 + 6
 .CE
 .PP
 evaluates to 14.2.
-Tcl expressions differ from C expressions in the way that
-operands are specified.  Also, Tcl expressions support
-non-numeric operands and string comparisons, as well as some
+Expressions differ from C expressions in the way that
+operands are specified.  Expressions also support
+non-numeric operands, string comparisons, and some
 additional operators not found in C.
+.PP
+When the result of expression is an integer, it is in decimal form, and when
+the result is a floating-point number, it is in the form produced by the
+\fB%g\fR format specifier of \fBformat\fR.
+.PP
+.VS TIP582
+At any point in the expression except within double quotes or braces, \fB#\fR
+is the beginning of a comment, which lasts to the end of the line or
+the end of the expression, whichever comes first.
+.VE TIP582
 .SS OPERANDS
 .PP
-A Tcl expression consists of a combination of operands, operators,
-and parentheses.
-White space may be used between the operands and operators and
-parentheses; it is ignored by the expression's instructions.
-Where possible, operands are interpreted as integer values.
-.VS 8.5
-Integer values may be specified in decimal (the normal case), in binary
-(if the first two characters of the operand are \fB0b\fR), in octal
-(if the first two characters of the operand are \fB0o\fR), or in hexadecimal
-(if the first two characters of the operand are \fB0x\fR).  For
-compatibility with older Tcl releases, an octal integer value is also
-indicated simply when the first character of the operand is \fB0\fR,
-whether or not the second character is also \fBo\fR.
-If an operand does not have one of the integer formats given
-above, then it is treated as a floating-point number if that is
-possible.  Floating-point numbers may be specified in any of several
-common formats making use of the decimal digits, the decimal point \fB.\fR,
-the characters \fBe\fR or \fBE\fR indicating scientific notation, and
-the sign characters \fB+\fR or \fB\-\fR.  For example, all of the
-following are valid floating-point numbers:  2.1, 3., 6e4, 7.91e+16.
-Also recognized as floating point values are the strings \fBInf\fR
-and \fBNaN\fR making use of any case for each character.
-.VE 8.5
-If no numeric interpretation is possible (note that all literal
-operands that are not numeric or boolean must be quoted with either
-braces or with double quotes), then an operand is left as a string
-(and only a limited set of operators may be applied to it).
-.PP
-Operands may be specified in any of the following ways:
-.IP [1]
-As a numeric value, either integer or floating-point.
-.IP [2]
-As a boolean value, using any form understood by \fBstring is boolean\fR.
-.IP [3]
-As a Tcl variable, using standard \fB$\fR notation.
-The variable's value will be used as the operand.
-.IP [4]
-As a string enclosed in double-quotes.
-The expression parser will perform backslash, variable, and
-command substitutions on the information between the quotes,
-and use the resulting value as the operand
-.IP [5]
-As a string enclosed in braces.
-The characters between the open brace and matching close brace
-will be used as the operand without any substitutions.
-.IP [6]
-As a Tcl command enclosed in brackets.
-The command will be executed and its result will be used as
-the operand.
-.IP [7]
-As a mathematical function whose arguments have any of the above
-forms for operands, such as \fBsin($x)\fR.  See \fBMATH FUNCTIONS\fR below for
+An expression consists of a combination of operands, operators, parentheses and
+commas, possibly with whitespace between any of these elements, which is
+ignored.  Each operand is interpreted as a numeric value if at all possible.
+.PP
+Each operand has one of the following forms:
+.RS
+.TP
+A \fBnumeric value\fR
+.PP
+.RS
+Either integer or floating-point.  The first two characters of an integer may
+also be \fB0d\fR for decimal, \fB0b\fR for binary, \fB0o\fR for octal or
+\fB0x\fR for hexadecimal.
+.PP
+A floating-point number may be take any of several
+common decimal formats, and may use the decimal point \fB.\fR,
+\fBe\fR or \fBE\fR for scientific notation, and
+the sign characters \fB+\fR and \fB\-\fR.  The
+following are all valid floating-point numbers:  2.1, 3., 6e4, 7.91e+16.
+The strings \fBInf\fR
+and \fBNaN\fR, in any combination of case, are also recognized as floating point
+values.  An operand that doesn't have a numeric interpretation must be quoted
+with either braces or with double quotes.
+.PP
+Digits in any numeric value may be separated with one or more underscore
+characters, "\fB_\fR".  A separator may only
+appear between digits, not appear at the start of a
+numeric value, between the leading 0 and radix specifier, or at the
+end of a numeric value.  Here are some examples:
+.PP
+.CS
+.ta 9c
+\fBexpr\fR 100_000_000		\fI100000000\fR
+\fBexpr\fR 0xffff_ffff		\fI4294967295\fR
+\fBformat\fR 0x%x 0b1111_1110_1101_1011		\fI0xfedb\fR
+\fBexpr\fR 3_141_592_653_589e-1_2		\fI3.141592653589\fR
+.CE
+.RE
+.TP
+A \fBboolean value\fR
+.
+Using any form understood by \fBstring is\fR
+\fBboolean\fR.
+.TP
+A \fBvariable\fR
+.
+Using standard \fB$\fR notation.
+The value of the variable is the value of the operand.
+.TP
+A string enclosed in \fBdouble-quotes\fR
+.
+Backslash, variable, and command substitution are performed according to the
+rules for \fBTcl\fR.
+.TP
+A string enclosed in \fBbraces\fR.
+.
+The operand is treated as a braced value according to the rule for braces in
+\fBTcl\fR.
+.TP
+A Tcl command enclosed in \fBbrackets\fR
+.
+Command substitution is performed as according to the command substitution rule
+for \fBTcl\fR.
+.TP
+A function call.
+.
+This is mathematical function such as \fBsin($x)\fR, whose arguments have any of
+the above forms for operands.  See \fBMATH FUNCTIONS\fR below for
 a discussion of how mathematical functions are handled.
-.LP
-Where the above substitutions occur (e.g. inside quoted strings), they
-are performed by the expression's instructions.
-However, the command parser may already have performed one round of
-substitution before the expression processor was called.
-As discussed below, it is usually best to enclose expressions
-in braces to prevent the command parser from performing substitutions
-on the contents.
-.PP
-For some examples of simple expressions, suppose the variable
-\fBa\fR has the value 3 and
-the variable \fBb\fR has the value 6.
-Then the command on the left side of each of the lines below
-will produce the value on the right side of the line:
+.RE
+.PP
+Because \fBexpr\fR parses and performs substitutions on values that have
+already been parsed and substituted by \fBTcl\fR, it is usually best to enclose
+expressions in braces to avoid the first round of substitutions by
+\fBTcl\fR.
+.PP
+Below are some examples of simple expressions where the value of \fBa\fR is 3
+and the value of \fBb\fR is 6.  The command on the left side of each line
+produces the value on the right side.
 .PP
 .CS
 .ta 9c
-\fBexpr\fR 3.1 + $a	\fI6.1\fR
-\fBexpr\fR 2 + "$a.$b"	\fI5.6\fR
-\fBexpr\fR 4*[llength "6 2"]	\fI8\fR
+\fBexpr\fR {3.1 + $a}	\fI6.1\fR
+\fBexpr\fR {2 + "$a.$b"}	\fI5.6\fR
+\fBexpr\fR {4*[llength {6 2}]}	\fI8\fR
 \fBexpr\fR {{word one} < "word $a"}	\fI0\fR
 .CE
+.PP
 .SS OPERATORS
 .PP
-The valid operators (most of which are also available as commands in
-the \fBtcl::mathop\fR namespace; see the \fBmathop\fR(n) manual page
-for details) are listed below, grouped in decreasing order of precedence:
+For operators having both a numeric mode and a string mode, the numeric mode is
+chosen when all operands have a numeric interpretation.  The integer
+interpretation of an operand is preferred over the floating-point
+interpretation.  To ensure string operations on arbitrary values it is generally
+a good idea to use \fBeq\fR, \fBne\fR, or the \fBstring\fR command instead of
+more versatile operators such as \fB==\fR.
+.PP
+Unless otherwise specified, operators accept non-numeric operands.  The value
+of a boolean operation is 1 if true, 0 otherwise.  See also \fBstring is\fR
+\fBboolean\fR.  The valid operators, most of which are also available as
+commands in the \fBtcl::mathop\fR namespace (see \fBmathop\fR(n)), are listed
+below, grouped in decreasing order of precedence:
 .TP 20
 \fB\-\0\0+\0\0~\0\0!\fR
-Unary minus, unary plus, bit-wise NOT, logical NOT.  None of these operators
-may be applied to string operands, and bit-wise NOT may be
-applied only to integers.
+.
+Unary minus, unary plus, bit-wise NOT, logical NOT.  These operators
+may only be applied to numeric operands, and bit-wise NOT may only be
+applied to integers.
 .TP 20
 \fB**\fR
-.VS 8.5
-Exponentiation.  Valid for any numeric operands.
-.VE 8.5
+.
+Exponentiation.  Valid for numeric operands.  The maximum exponent value
+that Tcl can handle if the first number is an integer > 1 is 268435455.
 .TP 20
 \fB*\0\0/\0\0%\fR
-Multiply, divide, remainder.  None of these operators may be
-applied to string operands, and remainder may be applied only
-to integers.
-The remainder will always have the same sign as the divisor and
-an absolute value smaller than the absolute value of the divisor.
+.
+Multiply and divide, which are valid for numeric operands, and remainder, which
+is valid for integers.  The remainder, an absolute value smaller than the
+absolute value of the divisor, has the same sign as the divisor.
 .RS
 .PP
-When applied to integers, the division and remainder operators can be
-considered to partition the number line into a sequence of equal-sized
-adjacent non-overlapping pieces where each piece is the size of the divisor;
-the division result identifies which piece the divisor lay within, and the
-remainder result identifies where within that piece the divisor lay. A
+When applied to integers, division and remainder can be
+considered to partition the number line into a sequence of
+adjacent non-overlapping pieces, where each piece is the size of the divisor;
+the quotient identifies which piece the dividend lies within, and the
+remainder identifies where within that piece the dividend lies. A
 consequence of this is that the result of
 .QW "-57 \fB/\fR 10"
 is always -6, and the result of
@@ -150,161 +182,169 @@ is always 3.
 .RE
 .TP 20
 \fB+\0\0\-\fR
-Add and subtract.  Valid for any numeric operands.
+.
+Add and subtract.  Valid for numeric operands.
 .TP 20
 \fB<<\0\0>>\fR
-Left and right shift.  Valid for integer operands only.
+.
+Left and right shift.  Valid for integers.
 A right shift always propagates the sign bit.
 .TP 20
 \fB<\0\0>\0\0<=\0\0>=\fR
-Boolean less, greater, less than or equal, and greater than or equal.
-Each operator produces 1 if the condition is true, 0 otherwise.
-These operators may be applied to strings as well as numeric operands,
-in which case string comparison is used.
+.
+Boolean numeric-preferring comparisons: less than, greater than, less than or
+equal, and greater than or equal. If either argument is not numeric, the
+comparison is done using UNICODE string comparison, as with the string
+comparison operators below, which have the same precedence.
+.TP 20
+\fBlt\0\0gt\0\0le\0\0ge\fR
+.VS TIP461
+Boolean string comparisons: less than, greater than, less than or equal, and
+greater than or equal. These always compare values using their UNICODE strings
+(also see \fBstring compare\fR), unlike with the numeric-preferring
+comparisons above, which have the same precedence.
+.VE TIP461
 .TP 20
 \fB==\0\0!=\fR
-Boolean equal and not equal.  Each operator produces a zero/one result.
-Valid for all operand types.
+.
+Boolean equal and not equal.
 .TP 20
 \fBeq\0\0ne\fR
-Boolean string equal and string not equal.  Each operator produces a
-zero/one result.  The operand types are interpreted only as strings.
+.
+Boolean string equal and string not equal.
 .TP 20
 \fBin\0\0ni\fR
-.VS 8.5
-List containment and negated list containment.  Each operator produces
-a zero/one result and treats its first argument as a string and its
-second argument as a Tcl list.  The \fBin\fR operator indicates
-whether the first argument is a member of the second argument list;
-the \fBni\fR operator inverts the sense of the result.
-.VE 8.5
+.
+List containment and negated list containment.  The first argument is
+interpreted as a string, the second as a list.  \fBin\fR tests for membership
+in the list, and \fBni\fR is the inverse.
 .TP 20
 \fB&\fR
-Bit-wise AND.  Valid for integer operands only.
+.
+Bit-wise AND.  Valid for integer operands.
 .TP 20
 \fB^\fR
-Bit-wise exclusive OR.  Valid for integer operands only.
+.
+Bit-wise exclusive OR.  Valid for integer operands.
 .TP 20
 \fB|\fR
-Bit-wise OR.  Valid for integer operands only.
+.
+Bit-wise OR.  Valid for integer operands.
 .TP 20
 \fB&&\fR
-Logical AND.  Produces a 1 result if both operands are non-zero,
-0 otherwise.
-Valid for boolean and numeric (integers or floating-point) operands only.
-This operator evaluates lazily; it only evaluates its right-hand side if it
+.
+Logical AND.  If both operands are true, the result is 1, or 0 otherwise.
+This operator evaluates lazily; it only evaluates its second operand if it
+must in order to determine its result.
+This operator evaluates lazily; it only evaluates its second operand if it
 must in order to determine its result.
 .TP 20
 \fB||\fR
-Logical OR.  Produces a 0 result if both operands are zero, 1 otherwise.
-Valid for boolean and numeric (integers or floating-point) operands only.
-This operator evaluates lazily; it only evaluates its right-hand side if it
+.
+Logical OR.  If both operands are false, the result is 0, or 1 otherwise.
+This operator evaluates lazily; it only evaluates its second operand if it
 must in order to determine its result.
 .TP 20
-\fIx \fB? \fIy \fB: \fIz\fR
-If-then-else, as in C.  If \fIx\fR
-evaluates to non-zero, then the result is the value of \fIy\fR.
-Otherwise the result is the value of \fIz\fR.
-The \fIx\fR operand must have a boolean or numeric value.
-This operator evaluates lazily; it only evaluates one of \fIy\fR or \fIz\fR.
-.LP
-See the C manual for more details on the results
-produced by each operator.
-.VS 8.5
-The exponentiation operator promotes types like the multiply and
-divide operators, and produces a result that is the same as the output
-of the \fBpow\fR function (after any type conversions.)
-.VE 8.5
-All of the binary operators group left-to-right within the same
-precedence level.  For example, the command
+\fIx \fB?\fI y \fB:\fI z\fR
+.
+If-then-else, as in C.  If \fIx\fR is false , the result is the value of
+\fIy\fR.  Otherwise the result is the value of \fIz\fR.
+This operator evaluates lazily; it evaluates only one of \fIy\fR or \fIz\fR.
+.PP
+The exponentiation operator promotes types in the same way that the multiply
+and divide operators do, and the result is is the same as the result of
+\fBpow\fR.
+Exponentiation groups right-to-left within a precedence level. Other binary
+operators group left-to-right.  For example, the value of
+.PP
 .PP
 .CS
 \fBexpr\fR {4*2 < 7}
 .CE
 .PP
-returns 0.
+is 0, while the value of
+.PP
+.CS
+\fBexpr\fR {2**3**2}
+.CE
+.PP
+is 512.
 .PP
-The \fB&&\fR, \fB||\fR, and \fB?:\fR operators have
+As in C, \fB&&\fR, \fB||\fR, and \fB?:\fR feature
 .QW "lazy evaluation" ,
-just as in C, which means that operands are not evaluated if they are
-not needed to determine the outcome.  For example, in the command
+which means that operands are not evaluated if they are
+not needed to determine the outcome.  For example, in
 .PP
 .CS
-\fBexpr\fR {$v ? [a] : [b]}
+\fBexpr\fR {$v?[a]:[b]}
 .CE
 .PP
-only one of
-.QW \fB[a]\fR
-or
-.QW \fB[b]\fR
-will actually be evaluated,
-depending on the value of \fB$v\fR.  Note, however, that this is
-only true if the entire expression is enclosed in braces;  otherwise
-the Tcl parser will evaluate both
-.QW \fB[a]\fR
-and
-.QW \fB[b]\fR
-before invoking the \fBexpr\fR command.
+only one of \fB[a]\fR or \fB[b]\fR is evaluated,
+depending on the value of \fB$v\fR.  This is not true of the normal Tcl parser,
+so it is normally recommended to enclose the arguments to \fBexpr\fR in braces.
+Without braces, as in
+\fBexpr\fR $v ? [a] : [b]
+both \fB[a]\fR and \fB[b]\fR are evaluated before \fBexpr\fR is even called.
+.PP
+For more details on the results
+produced by each operator, see the documentation for C.
 .SS "MATH FUNCTIONS"
 .PP
-.VS 8.5
-When the expression parser encounters a mathematical function
-such as \fBsin($x)\fR, it replaces it with a call to an ordinary
-Tcl command in the \fBtcl::mathfunc\fR namespace.  The processing
-of an expression such as:
+A mathematical function such as \fBsin($x)\fR is replaced with a call to an
+ordinary Tcl command in the \fBtcl::mathfunc\fR namespace.  The evaluation
+of an expression such as
 .PP
 .CS
 \fBexpr\fR {sin($x+$y)}
 .CE
 .PP
-is the same in every way as the processing of:
+is the same in every way as the evaluation of
 .PP
 .CS
 \fBexpr\fR {[tcl::mathfunc::sin [\fBexpr\fR {$x+$y}]]}
 .CE
 .PP
-which in turn is the same as the processing of:
+which in turn is the same as the evaluation of
 .PP
 .CS
 tcl::mathfunc::sin [\fBexpr\fR {$x+$y}]
 .CE
 .PP
-The executor will search for \fBtcl::mathfunc::sin\fR using the usual
-rules for resolving functions in namespaces. Either
-\fB::tcl::mathfunc::sin\fR or \fB[namespace
-current]::tcl::mathfunc::sin\fR will satisfy the request, and others
-may as well (depending on the current \fBnamespace path\fR setting).
+\fBtcl::mathfunc::sin\fR is resolved as described in
+\fBNAMESPACE RESOLUTION\fR in the \fBnamespace\fR(n) documentation.  Given the
+default value of \fBnamespace path\fR, \fB[namespace
+current]::tcl::mathfunc::sin\fR or \fB::tcl::mathfunc::sin\fR are the typical
+resolutions.
+.PP
+As in C, a mathematical function may accept multiple arguments separated by
+commas. Thus,
+.PP
+.CS
+\fBexpr\fR {hypot($x,$y)}
+.CE
+.PP
+becomes
+.PP
+.CS
+tcl::mathfunc::hypot $x $y
+.CE
 .PP
-See the \fBmathfunc\fR(n) manual page for the math functions that are
+See the \fBmathfunc\fR(n) documentation for the math functions that are
 available by default.
-.VE 8.5
 .SS "TYPES, OVERFLOW, AND PRECISION"
 .PP
-.VS 8.5
-All internal computations involving integers are done calling on the
-LibTomMath multiple precision integer library as required so that all
-integer calculations are performed exactly.  Note that in Tcl releases
-prior to 8.5, integer calculations were performed with one of the C types
-\fIlong int\fR or \fITcl_WideInt\fR, causing implicit range truncation
-in those calculations where values overflowed the range of those types.
-Any code that relied on these implicit truncations will need to explicitly
-add \fBint()\fR or \fBwide()\fR function calls to expressions at the points
-where such truncation is required to take place.
-.VE 8.5
-.PP
-All internal computations involving floating-point are
-done with the C type \fIdouble\fR.
-When converting a string to floating-point, exponent overflow is
+Internal floating-point computations are
+performed using the \fIdouble\fR C type.
+When converting a string to floating-point value, exponent overflow is
 detected and results in the \fIdouble\fR value of \fBInf\fR or
 \fB\-Inf\fR as appropriate.  Floating-point overflow and underflow
 are detected to the degree supported by the hardware, which is generally
-pretty reliable.
+fairly reliable.
 .PP
-Conversion among internal representations for integer, floating-point,
-and string operands is done automatically as needed.
-For arithmetic computations, integers are used until some
-floating-point number is introduced, after which floating-point is used.
-For example,
+Conversion among internal representations for integer, floating-point, and
+string operands is done automatically as needed.  For arithmetic computations,
+integers are used until some floating-point number is introduced, after which
+floating-point values are used.  For example,
 .PP
 .CS
 \fBexpr\fR {5 / 4}
@@ -318,53 +358,34 @@ returns 1, while
 .CE
 .PP
 both return 1.25.
-Floating-point values are always returned with a
+A floating-point result can be distinguished from an integer result by the
+presence of either
 .QW \fB.\fR
-or an
+or
 .QW \fBe\fR
-so that they will not look like integer values.  For example,
+.PP
+. For example,
 .PP
 .CS
 \fBexpr\fR {20.0/5.0}
 .CE
 .PP
 returns \fB4.0\fR, not \fB4\fR.
-.SS "STRING OPERATIONS"
-.PP
-String values may be used as operands of the comparison operators,
-although the expression evaluator tries to do comparisons as integer
-or floating-point when it can,
-i.e., when all arguments to the operator allow numeric interpretations,
-except in the case of the \fBeq\fR and \fBne\fR operators.
-If one of the operands of a comparison is a string and the other
-has a numeric value, a canonical string representation of the numeric
-operand value is generated to compare with the string operand.
-Canonical string representation for integer values is a decimal string
-format.  Canonical string representation for floating-point values
-is that produced by the \fB%g\fR format specifier of Tcl's
-\fBformat\fR command.  For example, the commands
-.PP
-.CS
-\fBexpr\fR {"0x03" > "2"}
-\fBexpr\fR {"0y" > "0x12"}
-.CE
-.PP
-both return 1.  The first comparison is done using integer
-comparison, and the second is done using string comparison.
-Because of Tcl's tendency to treat values as numbers whenever
-possible, it is not generally a good idea to use operators like \fB==\fR
-when you really want string comparison and the values of the
-operands could be arbitrary;  it is better in these cases to use
-the \fBeq\fR or \fBne\fR operators, or the \fBstring\fR command instead.
 .SH "PERFORMANCE CONSIDERATIONS"
 .PP
-Enclose expressions in braces for the best speed and the smallest
-storage requirements.
-This allows the Tcl bytecode compiler to generate the best code.
+Where an expression contains syntax that Tcl would otherwise perform
+substitutions on, enclosing an expression in braces or otherwise quoting it
+so that it's a static value allows the Tcl compiler to generate bytecode for
+the expression, resulting in better speed and smaller storage requirements.
+This also avoids issues that can arise if Tcl is allowed to perform
+substitution on the value before \fBexpr\fR is called.
 .PP
-As mentioned above, expressions are substituted twice:
-once by the Tcl parser and once by the \fBexpr\fR command.
-For example, the commands
+In the following example, the value of the expression is 11 because the Tcl
+parser first substitutes \fB$b\fR and \fBexpr\fR then substitutes \fB$a\fR as
+part of evaluating the expression
+.QW "$a + 2*4" .
+Enclosing the expression in braces would result in a syntax error as \fB$b\fR
+does not evaluate to a numeric value.
 .PP
 .CS
 set a 3
@@ -372,25 +393,18 @@ set b {$a + 2}
 \fBexpr\fR $b*4
 .CE
 .PP
-return 11, not a multiple of 4.
-This is because the Tcl parser will first substitute
-.QW "\fB$a + 2\fR"
-for the variable \fBb\fR,
-then the \fBexpr\fR command will evaluate the expression
-.QW "\fB$a + 2*4\fR" .
-.PP
-Most expressions do not require a second round of substitutions.
-Either they are enclosed in braces or, if not,
-their variable and command substitutions yield numbers or strings
-that do not themselves require substitutions.
-However, because a few unbraced expressions 
-need two rounds of substitutions,
-the bytecode compiler must emit
-additional instructions to handle this situation.
-The most expensive code is required for
-unbraced expressions that contain command substitutions.
-These expressions must be implemented by generating new code
-each time the expression is executed.
+When an expression is generated at runtime, like the one above is, the bytecode
+compiler must ensure that new code is generated each time the expression
+is evaluated.  This is the most costly kind of expression from a performance
+perspective.  In such cases, consider directly using the commands described in
+the \fBmathfunc\fR(n) or \fBmathop\fR(n) documentation instead of \fBexpr\fR.
+.PP
+Most expressions are not formed at runtime, but are literal strings or contain
+substitutions that don't introduce other substitutions.  To allow the bytecode
+compiler to work with an expression as a string literal at compilation time,
+ensure that it contains no substitutions or that it is enclosed in braces or
+otherwise quoted to prevent Tcl from performing substitutions, allowing
+\fBexpr\fR to perform them instead.
 .PP
 If it is necessary to include a non-constant expression string within the
 wider context of an otherwise-constant expression, the most efficient
@@ -406,12 +420,33 @@ set b {$a + 2}
 \fBexpr\fR {[\fBexpr\fR $b] * 4}
 .CE
 .PP
-.VS 8.5
-When the expression is unbraced to allow the substitution of a function or
-operator, consider using the commands documented in the \fBmathfunc\fR(n) or
-\fBmathop\fR(n) manual pages directly instead.
-.VE 8.5
+In general, you should enclose your expression in braces wherever possible,
+and where not possible, the argument to \fBexpr\fR should be an expression
+defined elsewhere as simply as possible. It is usually more efficient and
+safer to use other techniques (e.g., the commands in the \fBtcl::mathop\fR
+namespace) than it is to do complex expression generation.
 .SH EXAMPLES
+.PP
+A numeric comparison whose result is 1:
+.PP
+.CS
+\fBexpr\fR {"0x03" > "2"}
+.CE
+.PP
+A string comparison whose result is 1:
+.PP
+.CS
+\fBexpr\fR {"0y" > "0x12"}
+.CE
+.PP
+.VS TIP461
+A forced string comparison whose result is 0:
+.PP
+.CS
+\fBexpr\fR {"0x03" gt "2"}
+.CE
+.VE TIP461
+.PP
 Define a procedure that computes an
 .QW interesting
 mathematical function:
@@ -445,12 +480,14 @@ each other:
 puts "a and b are [\fBexpr\fR {$a eq $b ? {equal} : {different}}]"
 .CE
 .PP
-Set a variable to whether an environment variable is both defined at
-all and also set to a true boolean value:
+Set a variable indicating whether an environment variable is defined and has
+value of true:
 .PP
 .CS
 set isTrue [\fBexpr\fR {
+    # Does the environment variable exist, and...
     [info exists ::env(SOME_ENV_VAR)] &&
+    # ...does it contain a proper true value?
     [string is true -strict $::env(SOME_ENV_VAR)]
 }]
 .CE
@@ -464,10 +501,14 @@ set randNum [\fBexpr\fR { int(100 * rand()) }]
 array(n), for(n), if(n), mathfunc(n), mathop(n), namespace(n), proc(n),
 string(n), Tcl(n), while(n)
 .SH KEYWORDS
-arithmetic, boolean, compare, expression, fuzzy comparison
+arithmetic, boolean, compare, expression, fuzzy comparison, integer value
 .SH COPYRIGHT
 .nf
-Copyright (c) 1993 The Regents of the University of California.
-Copyright (c) 1994-2000 Sun Microsystems Incorporated.
-Copyright (c) 2005 by Kevin B. Kenny <kennykb@acm.org>. All rights reserved.
+Copyright \(co 1993 The Regents of the University of California.
+Copyright \(co 1994-2000 Sun Microsystems Incorporated.
+Copyright \(co 2005 Kevin B. Kenny <kennykb@acm.org>. All rights reserved.
 .fi
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/fblocked.n b/doc/fblocked.n
index fbe244f..00fe7a7 100644
--- a/doc/fblocked.n
+++ b/doc/fblocked.n
@@ -1,70 +1,24 @@
-'\" 
+'\"
 '\" Copyright (c) 1996 Sun Microsystems, Inc.
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
 .TH fblocked n 7.5 Tcl "Tcl Built-In Commands"
-.so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
 fblocked \- Test whether the last input operation exhausted all available input
 .SH SYNOPSIS
-\fBfblocked \fIchannelId\fR
+\fBfblocked \fIchannel\fR
 .BE
-
 .SH DESCRIPTION
 .PP
-The \fBfblocked\fR command returns 1 if the most recent input operation
-on \fIchannelId\fR returned less information than requested because all
-available input was exhausted.
-For example, if \fBgets\fR is invoked when there are only three
-characters available for input and no end-of-line sequence, \fBgets\fR
-returns an empty string and a subsequent call to \fBfblocked\fR will
-return 1.
-.PP
-\fIChannelId\fR must be an identifier for an open channel such as a
-Tcl standard channel (\fBstdin\fR, \fBstdout\fR, or \fBstderr\fR),
-the return value from an invocation of \fBopen\fR or \fBsocket\fR, or
-the result of a channel creation command provided by a Tcl extension.
-.SH EXAMPLE
-The \fBfblocked\fR command is particularly useful when writing network
-servers, as it allows you to write your code in a line-by-line style
-without preventing the servicing of other connections.  This can be
-seen in this simple echo-service:
-.PP
-.CS
-# This is called whenever a new client connects to the server
-proc connect {chan host port} {
-    set clientName [format <%s:%d> $host $port]
-    puts "connection from $clientName"
-    fconfigure $chan -blocking 0 -buffering line
-    fileevent $chan readable [list echoLine $chan $clientName]
-}
-
-# This is called whenever either at least one byte of input
-# data is available, or the channel was closed by the client.
-proc echoLine {chan clientName} {
-    gets $chan line
-    if {[eof $chan]} {
-        puts "finishing connection from $clientName"
-        close $chan
-    } elseif {![\fBfblocked\fR $chan]} {
-        # Didn't block waiting for end-of-line
-        puts "$clientName - $line"
-        puts $chan $line
-    }
-}
-
-# Create the server socket and enter the event-loop to wait
-# for incoming connections...
-socket -server connect 12345
-vwait forever
-.CE
-
+The \fBfblocked\fR command has been superceded by the \fBchan blocked\fR
+command which supports the same syntax and options.
 .SH "SEE ALSO"
-gets(n), open(n), read(n), socket(n), Tcl_StandardChannels(3)
-
-.SH KEYWORDS
-blocking, nonblocking
+chan(n)
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/fconfigure.n b/doc/fconfigure.n
index 51778c3..e185122 100644
--- a/doc/fconfigure.n
+++ b/doc/fconfigure.n
@@ -1,4 +1,4 @@
-'\" 
+'\"
 '\" Copyright (c) 1995-1996 Sun Microsystems, Inc.
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
@@ -12,272 +12,17 @@
 fconfigure \- Set and get options on a channel
 .SH SYNOPSIS
 .nf
-\fBfconfigure \fIchannelId\fR
-\fBfconfigure \fIchannelId\fR \fIname\fR
-\fBfconfigure \fIchannelId\fR \fIname value \fR?\fIname value ...\fR?
+\fBfconfigure \fIchannel\fR
+\fBfconfigure \fIchannel name\fR
+\fBfconfigure \fIchannel name value \fR?\fIname value ...\fR?
 .fi
 .BE
 .SH DESCRIPTION
 .PP
-The \fBfconfigure\fR command sets and retrieves options for channels.
-.PP
-\fIChannelId\fR identifies the channel for which to set or query an
-option and must refer to an open channel such as a Tcl standard
-channel (\fBstdin\fR, \fBstdout\fR, or \fBstderr\fR), the return
-value from an invocation of \fBopen\fR or \fBsocket\fR, or the result
-of a channel creation command provided by a Tcl extension.
-.PP
-If no \fIname\fR or \fIvalue\fR arguments are supplied, the command
-returns a list containing alternating option names and values for the channel.
-If \fIname\fR is supplied but no \fIvalue\fR then the command returns
-the current value of the given option.
-If one or more pairs of \fIname\fR and \fIvalue\fR are supplied, the
-command sets each of the named options to the corresponding \fIvalue\fR;
-in this case the return value is an empty string.
-.PP
-The options described below are supported for all channels. In addition,
-each channel type may add options that only it supports. See the manual
-entry for the command that creates each type of channels for the options
-that that specific type of channel supports. For example, see the manual
-entry for the \fBsocket\fR command for its additional options.
-.TP
-\fB\-blocking\fR \fIboolean\fR
-The \fB\-blocking\fR option determines whether I/O operations on the
-channel can cause the process to block indefinitely.
-The value of the option must be a proper boolean value.
-Channels are normally in blocking mode;  if a channel is placed into
-nonblocking mode it will affect the operation of the \fBgets\fR,
-\fBread\fR, \fBputs\fR, \fBflush\fR, and \fBclose\fR commands by
-allowing them to operate asynchronously;
-see the documentation for those commands for details.
-For nonblocking mode to work correctly, the application must be
-using the Tcl event loop (e.g. by calling \fBTcl_DoOneEvent\fR or
-invoking the \fBvwait\fR command).
-.TP
-\fB\-buffering\fR \fInewValue\fR
-.
-If \fInewValue\fR is \fBfull\fR then the I/O system will buffer output
-until its internal buffer is full or until the \fBflush\fR command is
-invoked. If \fInewValue\fR is \fBline\fR, then the I/O system will
-automatically flush output for the channel whenever a newline character
-is output. If \fInewValue\fR is \fBnone\fR, the I/O system will flush
-automatically after every output operation.  The default is for
-\fB\-buffering\fR to be set to \fBfull\fR except for channels that
-connect to terminal-like devices; for these channels the initial setting
-is \fBline\fR.  Additionally, \fBstdin\fR and \fBstdout\fR are
-initially set to \fBline\fR, and \fBstderr\fR is set to \fBnone\fR.
-.TP
-\fB\-buffersize\fR \fInewSize\fR
-.
-\fINewvalue\fR must be an integer; its value is used to set the size of
-buffers, in bytes, subsequently allocated for this channel to store input
-or output. \fINewvalue\fR must be between ten and one million, allowing
-buffers of ten to one million bytes in size.
-.TP
-\fB\-encoding\fR \fIname\fR
-.
-This option is used to specify the encoding of the channel, so that the data
-can be converted to and from Unicode for use in Tcl.  For instance, in
-order for Tcl to read characters from a Japanese file in \fBshiftjis\fR
-and properly process and display the contents, the encoding would be set
-to \fBshiftjis\fR.  Thereafter, when reading from the channel, the bytes in
-the Japanese file would be converted to Unicode as they are read.
-Writing is also supported \- as Tcl strings are written to the channel they
-will automatically be converted to the specified encoding on output.
-.RS
-.PP
-If a file contains pure binary data (for instance, a JPEG image), the
-encoding for the channel should be configured to be \fBbinary\fR.  Tcl
-will then assign no interpretation to the data in the file and simply read or
-write raw bytes.  The Tcl \fBbinary\fR command can be used to manipulate this
-byte-oriented data.  It is usually better to set the
-\fB\-translation\fR option to \fBbinary\fR when you want to transfer
-binary data, as this turns off the other automatic interpretations of
-the bytes in the stream as well.
-.PP
-The default encoding for newly opened channels is the same platform- and
-locale-dependent system encoding used for interfacing with the operating
-system, as returned by \fBencoding system\fR.
-.RE
-.TP
-\fB\-eofchar\fR \fIchar\fR
-.TP
-\fB\-eofchar\fR \fB{\fIinChar outChar\fB}\fR
-.
-This option supports DOS file systems that use Control-z (\ex1a) as an
-end of file marker.  If \fIchar\fR is not an empty string, then this
-character signals end-of-file when it is encountered during input.  For
-output, the end-of-file character is output when the channel is closed.
-If \fIchar\fR is the empty string, then there is no special end of file
-character marker.  For read-write channels, a two-element list specifies
-the end of file marker for input and output, respectively.  As a
-convenience, when setting the end-of-file character for a read-write
-channel you can specify a single value that will apply to both reading
-and writing.  When querying the end-of-file character of a read-write
-channel, a two-element list will always be returned.  The default value
-for \fB\-eofchar\fR is the empty string in all cases except for files
-under Windows.  In that case the \fB\-eofchar\fR is Control-z (\ex1a) for
-reading and the empty string for writing.
-The acceptable range for \fB\-eofchar\fR values is \ex01 - \ex7f;
-attempting to set \fB\-eofchar\fR to a value outside of this range will
-generate an error.
-.TP
-\fB\-translation\fR \fImode\fR
-.TP
-\fB\-translation\fR \fB{\fIinMode outMode\fB}\fR 
-.
-In Tcl scripts the end of a line is always represented using a single
-newline character (\en).  However, in actual files and devices the end of
-a line may be represented differently on different platforms, or even for
-different devices on the same platform.  For example, under UNIX newlines
-are used in files, whereas carriage-return-linefeed sequences are
-normally used in network connections.  On input (i.e., with \fBgets\fR
-and \fBread\fR) the Tcl I/O system automatically translates the external
-end-of-line representation into newline characters.  Upon output (i.e.,
-with \fBputs\fR), the I/O system translates newlines to the external
-end-of-line representation.  The default translation mode, \fBauto\fR,
-handles all the common cases automatically, but the \fB\-translation\fR
-option provides explicit control over the end of line translations.
-.RS
-.PP
-The value associated with \fB\-translation\fR is a single item for
-read-only and write-only channels.  The value is a two-element list for
-read-write channels; the read translation mode is the first element of
-the list, and the write translation mode is the second element.  As a
-convenience, when setting the translation mode for a read-write channel
-you can specify a single value that will apply to both reading and
-writing.  When querying the translation mode of a read-write channel, a
-two-element list will always be returned.  The following values are
-currently supported:
-.TP
-\fBauto\fR
-.
-As the input translation mode, \fBauto\fR treats any of newline
-(\fBlf\fR), carriage return (\fBcr\fR), or carriage return followed by a
-newline (\fBcrlf\fR) as the end of line representation.  The end of line
-representation can even change from line-to-line, and all cases are
-translated to a newline.  As the output translation mode, \fBauto\fR
-chooses a platform specific representation; for sockets on all platforms
-Tcl chooses \fBcrlf\fR, for all Unix flavors, it chooses \fBlf\fR, and
-for the various flavors of Windows it chooses \fBcrlf\fR.  The default
-setting for \fB\-translation\fR is \fBauto\fR for both input and output.
-.TP
-\fBbinary\fR 
-.
-No end-of-line translations are performed.  This is nearly identical to
-\fBlf\fR mode, except that in addition \fBbinary\fR mode also sets the
-end-of-file character to the empty string (which disables it) and sets the
-encoding to \fBbinary\fR (which disables encoding filtering).  See the
-description of \fB\-eofchar\fR and \fB\-encoding\fR for more information.
-.RS
-.PP
-Internally, i.e. when it comes to the actual behaviour of the
-translator this value \fBis\fR identical to \fBlf\fR and is therefore
-reported as such when queried. Even if \fBbinary\fR was used to set
-the translation.
-.RE
-.TP
-\fBcr\fR
-.
-The end of a line in the underlying file or device is represented by a
-single carriage return character.  As the input translation mode,
-\fBcr\fR mode converts carriage returns to newline characters.  As the
-output translation mode, \fBcr\fR mode translates newline characters to
-carriage returns.
-.TP
-\fBcrlf\fR
-.
-The end of a line in the underlying file or device is represented by a
-carriage return character followed by a linefeed character.  As the input
-translation mode, \fBcrlf\fR mode converts carriage-return-linefeed
-sequences to newline characters.  As the output translation mode,
-\fBcrlf\fR mode translates newline characters to carriage-return-linefeed
-sequences.  This mode is typically used on Windows platforms and for
-network connections.
-.TP
-\fBlf\fR
-.
-The end of a line in the underlying file or device is represented by a
-single newline (linefeed) character.  In this mode no translations occur
-during either input or output.  This mode is typically used on UNIX
-platforms.
-.RE
-.PP
-.SH "STANDARD CHANNELS"
-.PP
-The Tcl standard channels (\fBstdin\fR, \fBstdout\fR, and \fBstderr\fR)
-can be configured through this command like every other channel opened
-by the Tcl library. Beyond the standard options described above they
-will also support any special option according to their current type.
-If, for example, a Tcl application is started by the \fBinet\fR
-super-server common on Unix system its Tcl standard channels will be
-sockets and thus support the socket options.
-.SH EXAMPLES
-Instruct Tcl to always send output to \fBstdout\fR immediately,
-whether or not it is to a terminal:
-.CS
-\fBfconfigure\fR stdout -buffering none
-.CE
-.PP
-Open a socket and read lines from it without ever blocking the
-processing of other events:
-.CS
-set s [socket some.where.com 12345]
-\fBfconfigure\fR $s -blocking 0
-fileevent $s readable "readMe $s"
-proc readMe chan {
-   if {[gets $chan line] < 0} {
-      if {[eof $chan]} {
-         close $chan
-         return
-      }
-      # Could not read a complete line this time; Tcl's
-      # internal buffering will hold the partial line for us
-      # until some more data is available over the socket.
-   } else {
-      puts stdout $line
-   }
-}
-.CE
-.PP
-Read a PPM-format image from a file:
-.CS
-# Open the file and put it into Unix ASCII mode
-set f [open teapot.ppm]
-\fBfconfigure\fR $f \-encoding ascii \-translation lf
-
-# Get the header
-if {[gets $f] ne "P6"} {
-   error "not a raw\-bits PPM"
-}
-
-# Read lines until we have got non-comment lines
-# that supply us with three decimal values.
-set words {}
-while {[llength $words] < 3} {
-   gets $f line
-   if {[string match "#*" $line]} continue
-   lappend words {*}[join [scan $line %d%d%d]]
-}
-
-# Those words supply the size of the image and its
-# overall depth per channel. Assign to variables.
-lassign $words xSize ySize depth
-
-# Now switch to binary mode to pull in the data,
-# one byte per channel (red,green,blue) per pixel.
-\fBfconfigure\fR $f \-translation binary
-set numDataBytes [expr {3 * $xSize * $ySize}]
-set data [read $f $numDataBytes]
-
-close $f
-.CE
-
+The \fBfconfigure\fR command has been superceded by the \fBchan configure\fR
+command which supports the same syntax and options.
 .SH "SEE ALSO"
-close(n), flush(n), gets(n), open(n), puts(n), read(n), socket(n),
-Tcl_StandardChannels(3)
-
-.SH KEYWORDS
-blocking, buffering, carriage return, end of line, flushing, linemode,
-newline, nonblocking, platform, translation, encoding, filter, byte array,
-binary
+chan(n)
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/fcopy.n b/doc/fcopy.n
index 290ec49..e044fb7 100644
--- a/doc/fcopy.n
+++ b/doc/fcopy.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH fcopy n 8.0 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,31 +12,40 @@
 .SH NAME
 fcopy \- Copy data from one channel to another
 .SH SYNOPSIS
-\fBfcopy \fIinchan\fR \fIoutchan\fR ?\fB\-size \fIsize\fR? ?\fB\-command \fIcallback\fR?
+\fBfcopy \fIinputChan outputChan\fR ?\fB\-size \fIsize\fR? ?\fB\-command \fIcallback\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
-The \fBfcopy\fR command copies data from one I/O channel, \fIinchan\fR to another I/O channel, \fIoutchan\fR.
+The \fBfcopy\fR command copies data from one I/O channel, \fIinchan\fR, to
+another I/O channel, \fIoutchan\fR.
 The \fBfcopy\fR command leverages the buffering in the Tcl I/O system to
 avoid extra copies and to avoid buffering too much data in
-main memory when copying large files to slow destinations like
+main memory when copying large files to destinations like
 network sockets.
+.SS "DATA QUANTITY"
+All data until \fIEOF\fR is copied.
+In addition, the quantity of copied data may be specified by the option
+\fB\-size\fR. The given size is in bytes, if the input channel is in binary
+mode. Otherwise, it is in characters.
 .PP
-The \fBfcopy\fR 
-command transfers data from \fIinchan\fR until end of file
-or \fIsize\fR bytes have been 
-transferred. If no \fB\-size\fR argument is given,
-then the copy goes until end of file.
-All the data read from \fIinchan\fR is copied to \fIoutchan\fR.
+Depreciated feature: the transfer is treated as a binary transfer, if the
+encoding profile is set to
+.QW tcl8
+and the input encoding matches the output encoding.
+In this case, eventual encoding errors are not handled.
+An eventually given size is in bytes in this case.
+.
+.SS "BLOCKING OPERATION MODE"
 Without the \fB\-command\fR option, \fBfcopy\fR blocks until the copy is complete
-and returns the number of bytes written to \fIoutchan\fR.
-.PP
+and returns the number of bytes or characters (using the same rules as
+for the \fB\-size\fR option) written to \fIoutchan\fR.
+.
+.SS "BACKGROUND OPERATION MODE"
 The \fB\-command\fR argument makes \fBfcopy\fR work in the background.
 In this case it returns immediately and the \fIcallback\fR is invoked
 later when the copy completes.
 The \fIcallback\fR is called with
-one or two additional 
+one or two additional
 arguments that indicates how many bytes were written to \fIoutchan\fR.
 If an error occurred during the background copy, the second argument is the
 error string associated with the error.
@@ -46,8 +55,11 @@ non-blocking mode; the \fBfcopy\fR command takes care of that automatically.
 However, it is necessary to enter the event loop by using
 the \fBvwait\fR command or by using Tk.
 .PP
-You are not allowed to do other I/O operations with
-\fIinchan\fR or \fIoutchan\fR during a background \fBfcopy\fR.
+You are not allowed to do other input operations with \fIinchan\fR, or
+output operations with \fIoutchan\fR, during a background
+\fBfcopy\fR. The converse is entirely legitimate, as exhibited by the
+bidirectional fcopy example below.
+.PP
 If either \fIinchan\fR or \fIoutchan\fR get closed
 while the copy is in progress, the current copy is stopped
 and the command callback is \fInot\fR made.
@@ -57,10 +69,12 @@ then all data already queued for \fIoutchan\fR is written out.
 Note that \fIinchan\fR can become readable during a background copy.
 You should turn off any \fBfileevent\fR handlers during a background
 copy so those handlers do not interfere with the copy.
-Any I/O attempted by a \fBfileevent\fR handler will get a
+Any wrong-sided I/O attempted (by a \fBfileevent\fR handler or otherwise) will
+get a
 .QW "channel busy"
 error.
-.PP
+.
+.SS "CHANNEL TRANSLATION OPTIONS"
 \fBFcopy\fR translates end-of-line sequences in \fIinchan\fR and \fIoutchan\fR
 according to the \fB\-translation\fR option
 for these channels.
@@ -71,13 +85,13 @@ can be different than the number of bytes written to \fIoutchan\fR.
 Only the number of bytes written to \fIoutchan\fR is reported,
 either as the return value of a synchronous \fBfcopy\fR or
 as the argument to the callback for an asynchronous \fBfcopy\fR.
-.PP
-\fBFcopy\fR obeys the encodings and character translations configured
+.SS "CHANNEL ENCODING OPTIONS"
+\fBFcopy\fR obeys the encodings, profiles and character translations configured
 for the channels. This
 means that the incoming characters are converted internally first
 UTF-8 and then into the encoding of the channel \fBfcopy\fR writes
 to. See the manual entry for \fBfconfigure\fR for details on the
-\fB\-encoding\fR and \fB\-translation\fR options. No conversion is
+\fB\-encoding\fR and \fB\-profile\fR options. No conversion is
 done if both channels are
 set to encoding
 .QW binary
@@ -90,13 +104,29 @@ the system will assume that the incoming
 bytes are valid UTF-8 characters and convert them according to the
 output encoding. The behaviour of the system for bytes which are not
 valid UTF-8 characters is undefined in this case.
-
+.PP
+\fBFcopy\fR may throw encoding errors (error code \fBEILSEQ\fR), if input or output
+channel is configured to the
+.QW strict
+encoding profile.
+.PP
+If an encoding error arises on the input channel, any data before the error
+byte is written to the output channel. The input file pointer is located just
+before the values causing the encoding error.
+Error inspection or recovery is possible by changing the encoding parameters and
+invoking a file command (\fBread\fR, \fBfcopy\fR).
+.PP
+If an encoding error arises on the output channel, the erroneous data is lost.
+To make the difference between the input error case and the output error case,
+only the error message may be inspected (read or write), as both throw the
+error code \fIEILSEQ\fR.
 .SH EXAMPLES
 .PP
 The first example transfers the contents of one channel exactly to
 another. Note that when copying one file to another, it is better to
 use \fBfile copy\fR which also copies file metadata (e.g. the file
 access permissions) where possible.
+.PP
 .CS
 fconfigure $in -translation binary
 fconfigure $out -translation binary
@@ -106,8 +136,9 @@ fconfigure $out -translation binary
 This second example shows how the callback gets
 passed the number of bytes transferred.
 It also uses vwait to put the application into the event loop.
-Of course, this simplified example could be done without the command 
+Of course, this simplified example could be done without the command
 callback.
+.PP
 .CS
 proc Cleanup {in out bytes {error {}}} {
     global total
@@ -115,7 +146,7 @@ proc Cleanup {in out bytes {error {}}} {
     close $in
     close $out
     if {[string length $error] != 0} {
-	# error occurred during the copy
+        # error occurred during the copy
     }
 }
 set in [open $file1]
@@ -125,17 +156,18 @@ vwait total
 .CE
 .PP
 The third example copies in chunks and tests for end of file
-in the command callback
+in the command callback.
+.PP
 .CS
 proc CopyMore {in out chunk bytes {error {}}} {
     global total done
     incr total $bytes
     if {([string length $error] != 0) || [eof $in]} {
-	set done $total
-	close $in
-	close $out
+        set done $total
+        close $in
+        close $out
     } else {
-	\fBfcopy\fR $in $out -size $chunk \e
+        \fBfcopy\fR $in $out -size $chunk \e
                 -command [list CopyMore $in $out $chunk]
     }
 }
@@ -147,9 +179,28 @@ set total 0
         -command [list CopyMore $in $out $chunk]
 vwait done
 .CE
-
+.PP
+The fourth example starts an asynchronous, bidirectional fcopy between
+two sockets. Those could also be pipes from two [open "|hal 9000" r+]
+(though their conversation would remain secret to the script, since
+all four fileevent slots are busy).
+.PP
+.CS
+set flows 2
+proc Done {dir args} {
+     global flows done
+     puts "$dir is over."
+     incr flows -1
+     if {$flows<=0} {set done 1}
+}
+\fBfcopy\fR $sok1 $sok2 -command [list Done UP]
+\fBfcopy\fR $sok2 $sok1 -command [list Done DOWN]
+vwait done
+.CE
 .SH "SEE ALSO"
 eof(n), fblocked(n), fconfigure(n), file(n)
-
 .SH KEYWORDS
 blocking, channel, end of line, end of file, nonblocking, read, translation
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/file.n b/doc/file.n
index 2455566..3a41491 100644
--- a/doc/file.n
+++ b/doc/file.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH file n 8.3 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,18 +12,17 @@
 .SH NAME
 file \- Manipulate file names and attributes
 .SH SYNOPSIS
-\fBfile \fIoption\fR \fIname\fR ?\fIarg arg ...\fR?
+\fBfile \fIoption name\fR ?\fIarg arg ...\fR?
 .BE
 .SH DESCRIPTION
 .PP
-This command provides several operations on a file's name or attributes.
-\fIName\fR is the name of a file; if it starts with a tilde, then tilde
-substitution is done before executing the command (see the manual entry for
-\fBfilename\fR for details).  \fIOption\fR indicates what to do with the
-file name.  Any unique abbreviation for \fIoption\fR is acceptable.  The
-valid options are:
+This command provides several operations on a file's name or attributes.  The
+\fIname\fR argument is the name of a file in most cases. The \fIoption\fR
+argument indicates what to do with the file name.  Any unique abbreviation for
+\fIoption\fR is acceptable.  The valid options are:
+.\" METHOD: atime
 .TP
-\fBfile atime \fIname\fR ?\fBtime\fR?
+\fBfile atime \fIname\fR ?\fItime\fR?
 .
 Returns a decimal string giving the time at which file \fIname\fR was last
 accessed.  If \fItime\fR is specified, it is an access time to set
@@ -31,12 +30,15 @@ for the file.  The time is measured in the standard POSIX fashion as
 seconds from a fixed starting time (often January 1, 1970).  If the file
 does not exist or its access time cannot be queried or set then an error is
 generated.  On Windows, FAT file systems do not support access time.
+On \fBzipfs\fR file systems, access time is mapped to the modification
+time.
+.\" METHOD: attributes
 .TP
 \fBfile attributes \fIname\fR
 .TP
-\fBfile attributes \fIname\fR ?\fBoption\fR?
+\fBfile attributes \fIname\fR ?\fIoption\fR?
 .TP
-\fBfile attributes \fIname\fR ?\fBoption value option value...\fR?
+\fBfile attributes \fIname\fR ?\fIoption value option value...\fR?
 .
 This subcommand returns or sets platform-specific values associated
 with a file. The first form returns a list of the platform-specific
@@ -60,7 +62,7 @@ write permission for the file's group and other users. An
 \fBls\fR-style string of the form \fBrwxrwxrwx\fR is also accepted but
 must always be 9 characters long. E.g., \fBrwxr-xr-t\fR is equivalent
 to \fB01755\fR. On versions of Unix supporting file flags,
-\fB-readonly\fR returns the value of, or sets, or clears the readonly
+\fB\-readonly\fR returns the value of, or sets, or clears the readonly
 attribute of a file, i.e., the user immutable flag (\fBuchg\fR) to the
 \fBchflags\fR command.
 .PP
@@ -71,26 +73,69 @@ expand each path element to its long version. This attribute cannot be
 set. \fB\-readonly\fR gives the value or sets or clears the readonly
 attribute of the file. \fB\-shortname\fR gives a string where every
 path element is replaced with its short (8.3) version of the
-name. This attribute cannot be set. \fB\-system\fR gives or sets or
-clears the value of the system attribute of the file.
+name if possible. For path elements that cannot be mapped to short
+names, the long name is retained. This attribute cannot be set.
+\fB\-system\fR gives or sets or clears the value of the system
+attribute of the file.
 .PP
-On Mac OS X and Darwin, \fB\-creator\fR gives or sets the
+On macOS and Darwin, \fB\-creator\fR gives or sets the
 Finder creator type of the file. \fB\-hidden\fR gives or sets or clears
 the hidden attribute of the file. \fB\-readonly\fR gives or sets or
 clears the readonly attribute of the file. \fB\-rsrclength\fR gives
 the length of the resource fork of the file, this attribute can only be
 set to the value 0, which results in the resource fork being stripped
 off the file.
+.PP
+On all platforms, files in \fBzipfs\fR mounted archives return the following
+attributes. These are all read-only and cannot be directly set.
+.RS
+.\" OPTION: -archive
+.TP
+\fB\-archive\fR
+.
+The path of the mounted ZIP archive containing the file.
+.\" OPTION: -compsize
+.TP
+\fB\-compsize\fR
+.
+The compressed size of the file within the archive.
+This is \fB0\fR for directories.
+.\" OPTION: -crc
+.TP
+\fB\-crc\fR
+.
+The CRC of the file if present, else \fB0\fR.
+.\" OPTION: -mount
+.TP
+\fB\-mount\fR
+.
+The path where the containing archive is mounted.
+.\" OPTION: -offset
+.TP
+\fB\-offset\fR
+.
+The offset of the file within the archive.
+.\" OPTION: -uncompsize
+.TP
+\fB\-uncompsize\fR
+.
+The uncompressed size of the file. This is \fB0\fR for directories.
+.RE
+.PP
+Other attributes may be present in the returned list. These should
+be ignored.
 .RE
+.\" METHOD: channels
 .TP
-\fBfile channels ?\fIpattern\fR?
+\fBfile channels\fR ?\fIpattern\fR?
 .
 If \fIpattern\fR is not specified, returns a list of names of all
 registered open channels in this interpreter.  If \fIpattern\fR is
 specified, only those names matching \fIpattern\fR are returned.  Matching
 is determined using the same rules as for \fBstring match\fR.
+.\" METHOD: copy
 .TP
-\fBfile copy \fR?\fB\-force\fR? ?\fB\-\|\-\fR? \fIsource\fR \fItarget\fR
+\fBfile copy \fR?\fB\-force\fR? ?\fB\-\|\-\fR? \fIsource target\fR
 .TP
 \fBfile copy \fR?\fB\-force\fR? ?\fB\-\|\-\fR? \fIsource\fR ?\fIsource\fR ...? \fItargetDir\fR
 .
@@ -107,12 +152,13 @@ within a single filesystem, \fIfile copy\fR will copy soft links (i.e.
 the links themselves are copied, not the things they point to).  Trying
 to overwrite a non-empty directory, overwrite a directory with a file,
 or overwrite a file with a directory will all result in errors even if
-\fI\-force\fR was specified.  Arguments are processed in the order
+\fB\-force\fR was specified.  Arguments are processed in the order
 specified, halting at the first error, if any.  A \fB\-\|\-\fR marks
 the end of switches; the argument following the \fB\-\|\-\fR will be
 treated as a \fIsource\fR even if it starts with a \fB\-\fR.
+.\" METHOD: delete
 .TP
-\fBfile delete \fR?\fB\-force\fR? ?\fB\-\|\-\fR? \fIpathname\fR ?\fIpathname\fR ... ?
+\fBfile delete \fR?\fB\-force\fR? ?\fB\-\|\-\fR? ?\fIpathname\fR ... ?
 .
 Removes the file or directory specified by each \fIpathname\fR
 argument.  Non-empty directories will be removed only if the
@@ -130,8 +176,10 @@ the first error, if any.
 A \fB\-\|\-\fR marks the end of switches; the argument following the
 \fB\-\|\-\fR will be treated as a \fIpathname\fR even if it starts with
 a \fB\-\fR.
+.\" METHOD: dirname
 .TP
 \fBfile dirname \fIname\fR
+.
 Returns a name comprised of all of the path components in \fIname\fR
 excluding the last element.  If \fIname\fR is a relative file name and
 only contains one path element, then returns
@@ -139,48 +187,64 @@ only contains one path element, then returns
 If \fIname\fR refers to a root directory, then the root directory is
 returned.  For example,
 .RS
-.CS
-\fBfile dirname c:/\fR
-.CE
-returns \fBc:/\fR. 
 .PP
-Note that tilde substitution will only be
-performed if it is necessary to complete the command. For example,
 .CS
-\fBfile dirname ~/src/foo.c\fR
+\fBfile dirname\fR c:/
 .CE
-returns \fB~/src\fR, whereas
-.CS
-\fBfile dirname ~\fR
-.CE
-returns \fB/home\fR (or something similar).
+.PP
+returns \fBc:/\fR.
 .RE
+.\" METHOD: executable
 .TP
 \fBfile executable \fIname\fR
 .
 Returns \fB1\fR if file \fIname\fR is executable by the current user,
 \fB0\fR otherwise. On Windows, which does not have an executable attribute,
 the command treats all directories and any files with extensions
-\fBexe\fR, \fBcom\fR, \fBcmd\fR, \fBbat\fR or \fBps1\fR as executable.
+\fBexe\fR, \fBcom\fR, \fBcmd\fR or \fBbat\fR as executable.
+.\" METHOD: exists
 .TP
 \fBfile exists \fIname\fR
 .
 Returns \fB1\fR if file \fIname\fR exists and the current user has
 search privileges for the directories leading to it, \fB0\fR otherwise.
+.\" METHOD: extension
 .TP
 \fBfile extension \fIname\fR
 .
 Returns all of the characters in \fIname\fR after and including the last
 dot in the last element of \fIname\fR.  If there is no dot in the last
 element of \fIname\fR then returns the empty string.
+.\" METHOD: home
+.TP
+\fBfile home ?\fIusername\fR?
+.VS TIP602
+If no argument is specified, the command returns the home directory
+of the current user. This is generally the value of the \fB$HOME\fR
+environment variable except that on Windows platforms backslashes
+in the path are replaced by forward slashes. An error is raised if
+the \fB$HOME\fR environment variable is not set.
+.RS
+.PP
+If \fIusername\fR is specified, the command returns the home directory
+configured in the system for the specified user. Note this may be
+different than the value of the \fB$HOME\fR environment variable
+even when \fIusername\fR corresponds to the current user. An error is
+raised if the \fIusername\fR does not correspond to a user account
+on the system.
+.RE
+.VE TIP602
+.\" METHOD: isdirectory
 .TP
 \fBfile isdirectory \fIname\fR
 .
 Returns \fB1\fR if file \fIname\fR is a directory, \fB0\fR otherwise.
+.\" METHOD: isfile
 .TP
 \fBfile isfile \fIname\fR
 .
 Returns \fB1\fR if file \fIname\fR is a regular file, \fB0\fR otherwise.
+.\" METHOD: join
 .TP
 \fBfile join \fIname\fR ?\fIname ...\fR?
 .
@@ -190,17 +254,20 @@ relative, then it will be joined to the previous file name argument.
 Otherwise, any earlier arguments will be discarded, and joining will
 proceed from the current argument.  For example,
 .RS
+.PP
 .CS
-\fBfile join a b /foo bar\fR
+\fBfile join\fR a b /foo bar
 .CE
+.PP
 returns \fB/foo/bar\fR.
 .PP
 Note that any of the names can contain separators, and that the result
 is always canonical for the current platform: \fB/\fR for Unix and
 Windows.
 .RE
+.\" METHOD: link
 .TP
-\fBfile link ?\fI\-linktype\fR? \fIlinkName\fR ?\fItarget\fR?
+\fBfile link\fR ?\fI\-linktype\fR? \fIlinkName\fR ?\fItarget\fR?
 .
 If only one argument is given, that argument is assumed to be
 \fIlinkName\fR, and this command returns the value of the link given by
@@ -224,37 +291,34 @@ If the user wishes to make a link of a specific type only, (and signal an
 error if for some reason that is not possible), then the optional
 \fI\-linktype\fR argument should be given.  Accepted values for
 \fI\-linktype\fR are
-.QW \-symbolic
+.QW \fB\-symbolic\fR
 and
-.QW \-hard .
+.QW \fB\-hard\fR .
 .PP
 On Unix, symbolic links can be made to relative paths, and those paths
 must be relative to the actual \fIlinkName\fR's location (not to the
 cwd), but on all other platforms where relative links are not supported,
 target paths will always be converted to absolute, normalized form
 before the link is created (and therefore relative paths are interpreted
-as relative to the cwd).  Furthermore,
-.QW ~user
-paths are always expanded
-to absolute form.  When creating links on filesystems that either do not
+as relative to the cwd). When creating links on filesystems that either do not
 support any links, or do not support the specific type requested, an
-error message will be returned.  In particular Windows 95, 98 and ME do
-not support any links at present, but most Unix platforms support both
-symbolic and hard links (the latter for files only) and Windows
-NT/2000/XP (on NTFS drives) support symbolic
-directory links and hard file links.
+error message will be returned.  Most Unix platforms support both
+symbolic and hard links (the latter for files only). Windows
+supports symbolic directory links and hard file links on NTFS drives.
 .RE
+.\" METHOD: lstat
 .TP
-\fBfile lstat \fIname varName\fR
+\fBfile lstat \fIname\fR ?\fIvarName\fR?
 .
 Same as \fBstat\fR option (see below) except uses the \fIlstat\fR
 kernel call instead of \fIstat\fR.  This means that if \fIname\fR
-refers to a symbolic link the information returned in \fIvarName\fR
-is for the link rather than the file it refers to.  On systems that
-do not support symbolic links this option behaves exactly the same
-as the \fBstat\fR option.
+refers to a symbolic link the information returned is for the link
+rather than the file it refers to.  On systems that do not support
+symbolic links this option behaves exactly the same as the
+\fBstat\fR option.
+.\" METHOD: mkdir
 .TP
-\fBfile mkdir \fIdir\fR ?\fIdir\fR ...?
+\fBfile mkdir\fR ?\fIdir\fR ...?
 .
 Creates each directory specified.  For each pathname \fIdir\fR specified,
 this command will create all non-existing parent directories as
@@ -262,6 +326,7 @@ well as \fIdir\fR itself.  If an existing directory is specified, then
 no action is taken and no error is returned.  Trying to overwrite an existing
 file with a directory will result in an error.  Arguments are processed in
 the order specified, halting at the first error, if any.
+.\" METHOD: mtime
 .TP
 \fBfile mtime \fIname\fR ?\fItime\fR?
 .
@@ -271,12 +336,15 @@ the file (equivalent to Unix \fBtouch\fR).  The time is measured in the
 standard POSIX fashion as seconds from a fixed starting time (often January
 1, 1970).  If the file does not exist or its modified time cannot be queried
 or set then an error is generated.
+On \fBzipfs\fR file systems, modification time cannot be explicitly set.
+.\" METHOD: nativename
 .TP
 \fBfile nativename \fIname\fR
 .
 Returns the platform-specific name of the file. This is useful if the
 filename is needed to pass to a platform-specific call, such as to a
 subprocess via \fBexec\fR under Windows (see \fBEXAMPLES\fR below).
+.\" METHOD: normalize
 .TP
 \fBfile normalize \fIname\fR
 .
@@ -298,11 +366,13 @@ last link in the path is necessary, because Tcl or the user may wish to
 operate on the actual symbolic link itself (for example \fBfile delete\fR,
 \fBfile rename\fR, \fBfile copy\fR are defined to operate on symbolic
 links, not on the things that they point to).
+.\" METHOD: owned
 .TP
-\fBfile owned \fIname\fR 
+\fBfile owned \fIname\fR
 .
 Returns \fB1\fR if file \fIname\fR is owned by the current user, \fB0\fR
 otherwise.
+.\" METHOD: pathtype
 .TP
 \fBfile pathtype \fIname\fR
 .
@@ -313,11 +383,13 @@ working directory, then the path type will be \fBrelative\fR. If \fIname\fR
 refers to a file relative to the current working directory on a specified
 volume, or to a specific file on the current working volume, then the path
 type is \fBvolumerelative\fR.
+.\" METHOD: readable
 .TP
 \fBfile readable \fIname\fR
 .
 Returns \fB1\fR if file \fIname\fR is readable by the current user,
-\fB0\fR otherwise. 
+\fB0\fR otherwise.
+.\" METHOD: readlink
 .TP
 \fBfile readlink \fIname\fR
 .
@@ -325,8 +397,9 @@ Returns the value of the symbolic link given by \fIname\fR (i.e. the name
 of the file it points to).  If \fIname\fR is not a symbolic link or its
 value cannot be read, then an error is returned.  On systems that do not
 support symbolic links this option is undefined.
+.\" METHOD: rename
 .TP
-\fBfile rename \fR?\fB\-force\fR? ?\fB\-\|\-\fR? \fIsource\fR \fItarget\fR
+\fBfile rename \fR?\fB\-force\fR? ?\fB\-\|\-\fR? \fIsource target\fR
 .TP
 \fBfile rename \fR?\fB\-force\fR? ?\fB\-\|\-\fR? \fIsource\fR ?\fIsource\fR ...? \fItargetDir\fR
 .
@@ -344,6 +417,7 @@ result in errors.  Arguments are processed in the order specified,
 halting at the first error, if any.  A \fB\-\|\-\fR marks the end of
 switches; the argument following the \fB\-\|\-\fR will be treated as a
 \fIsource\fR even if it starts with a \fB\-\fR.
+.\" METHOD: rootname
 .TP
 \fBfile rootname \fIname\fR
 .
@@ -352,20 +426,23 @@ last
 .QW .
 character in the last component of name.  If the last
 component of \fIname\fR does not contain a dot, then returns \fIname\fR.
+.\" METHOD: separator
 .TP
 \fBfile separator\fR ?\fIname\fR?
 .
-If no argument is given, returns the character which is used to separate 
+If no argument is given, returns the character which is used to separate
 path segments for native files on this platform.  If a path is given,
 the filesystem responsible for that path is asked to return its
 separator character.  If no file system accepts \fIname\fR, an error
 is generated.
+.\" METHOD: size
 .TP
 \fBfile size \fIname\fR
 .
 Returns a decimal string giving the size of file \fIname\fR in bytes.  If
 the file does not exist or its size cannot be queried then an error is
 generated.
+.\" METHOD: split
 .TP
 \fBfile split \fIname\fR
 .
@@ -373,29 +450,23 @@ Returns a list whose elements are the path components in \fIname\fR.  The
 first element of the list will have the same path type as \fIname\fR.
 All other elements will be relative.  Path separators will be discarded
 unless they are needed to ensure that an element is unambiguously relative.
-For example, under Unix
-.RS
-.CS
-file split /foo/~bar/baz
-.CE
-returns \fB/\0\0foo\0\0./~bar\0\0baz\fR to ensure that later commands
-that use the third component do not attempt to perform tilde
-substitution.
-.RE
-.TP
-\fBfile stat  \fIname varName\fR
-.
-Invokes the \fBstat\fR kernel call on \fIname\fR, and uses the variable
-given by \fIvarName\fR to hold information returned from the kernel call.
-\fIVarName\fR is treated as an array variable, and the following elements
-of that variable are set: \fBatime\fR, \fBctime\fR, \fBdev\fR, \fBgid\fR,
-\fBino\fR, \fBmode\fR, \fBmtime\fR, \fBnlink\fR, \fBsize\fR, \fBtype\fR,
-\fBuid\fR.  Each element except \fBtype\fR is a decimal string with the
-value of the corresponding field from the \fBstat\fR return structure;
-see the manual entry for \fBstat\fR for details on the meanings of the
-values.  The \fBtype\fR element gives the type of the file in the same
-form returned by the command \fBfile type\fR.  This command returns an
-empty string.
+.\" METHOD: stat
+.TP
+\fBfile stat \fIname\fR ?\fIvarName\fR?
+.
+Invokes the \fBstat\fR kernel call on \fIname\fR, and returns a
+dictionary with the information returned from the kernel call. If
+\fIvarName\fR is given, it uses the variable to hold the information.
+\fIVarName\fR is treated as an array variable, and in such case the
+command returns the empty string. The following elements are set:
+\fBatime\fR, \fBctime\fR, \fBdev\fR, \fBgid\fR, \fBino\fR, \fBmode\fR,
+\fBmtime\fR, \fBnlink\fR, \fBsize\fR, \fBtype\fR, \fBuid\fR.  Each element
+except \fBtype\fR is a decimal string with the value of the corresponding
+field from the \fBstat\fR return structure; see the manual entry for
+\fBstat\fR for details on the meanings of the values.  The \fBtype\fR
+element gives the type of the file in the same form returned by the
+command \fBfile type\fR.
+.\" METHOD: system
 .TP
 \fBfile system \fIname\fR
 .
@@ -417,23 +488,91 @@ to represent a file on a remote ftp site mounted as a
 virtual filesystem through an extension called
 .QW vfs .
 If the file does not belong to any filesystem, an error is generated.
+.\" METHOD: tail
 .TP
 \fBfile tail \fIname\fR
 .
 Returns all of the characters in the last filesystem component of
 \fIname\fR.  Any trailing directory separator in \fIname\fR is ignored.
-If \fIname\fR contains no separators then returns \fIname\fR.  So, 
+If \fIname\fR contains no separators then returns \fIname\fR.  So,
 \fBfile tail a/b\fR, \fBfile tail a/b/\fR and \fBfile tail b\fR all
 return \fBb\fR.
+.\" METHOD: tempdir
+.TP
+\fBfile tempdir\fR ?\fItemplate\fR?
+.VS TIP431
+Creates a temporary directory (guaranteed to be newly created and writable by
+the current script) and returns its name. If \fItemplate\fR is given, it
+specifies one of or both of the existing directory (on a filesystem controlled
+by the operating system) to contain the temporary directory, and the base part
+of the directory name; it is considered to have the location of the directory
+if there is a directory separator in the name, and the base part is everything
+after the last directory separator (if non-empty).  The default containing
+directory is determined by system-specific operations, and the default base
+name prefix is
+.QW \fBtcl\fR .
+.RS
+.PP
+The following output is typical and illustrative; the actual output will vary
+between platforms:
+.PP
+.CS
+% \fBfile tempdir\fR
+/var/tmp/tcl_u0kuy5
+ % \fBfile tempdir\fR /tmp/myapp
+/tmp/myapp_8o7r9L
+% \fBfile tempdir\fR /tmp/
+/tmp/tcl_1mOJHD
+% \fBfile tempdir\fR myapp
+/var/tmp/myapp_0ihS0n
+.CE
+.RE
+.VE TIP431
+.\" METHOD: tempfile
+.TP
+\fBfile tempfile\fR ?\fInameVar\fR? ?\fItemplate\fR?
+Creates a temporary file and returns a read-write channel opened on that file.
+If the \fInameVar\fR is given, it specifies a variable that the name of the
+temporary file will be written into; if absent, Tcl will attempt to arrange
+for the temporary file to be deleted once it is no longer required. If the
+\fItemplate\fR is present, it specifies parts of the template of the filename
+to use when creating it (such as the directory, base-name or extension) though
+some platforms may ignore some or all of these parts and use a built-in
+default instead.
+.RS
+.PP
+Note that temporary files are \fIonly\fR ever created on the native
+filesystem. As such, they can be relied upon to be used with operating-system
+native APIs and external programs that require a filename.
+.RE
+.\" METHOD: tildeexpand
+.TP
+\fBfile tildeexpand \fIname\fR
+.VS TIP602
+Returns the result of performing tilde substitution on \fIname\fR. If the name
+begins with a tilde, then the file name will be interpreted as if the first
+element is replaced with the location of the home directory for the given user.
+If the tilde is followed immediately by a path separator, the \fB$HOME\fR
+environment variable is substituted.  Otherwise the characters between the
+tilde and the next separator are taken as a user name, which is used to
+retrieve the user's home directory for substitution.  An error is raised if the
+\fB$HOME\fR environment variable or user does not exist.
+.RS
+.PP
+If the file name does not begin with a tilde, it is returned unmodified.
+.RE
+.VE TIP602
+.\" METHOD: type
 .TP
 \fBfile type \fIname\fR
 .
 Returns a string giving the type of file \fIname\fR, which will be one of
 \fBfile\fR, \fBdirectory\fR, \fBcharacterSpecial\fR, \fBblockSpecial\fR,
 \fBfifo\fR, \fBlink\fR, or \fBsocket\fR.
+.\" METHOD: volumes
 .TP
 \fBfile volumes\fR
-. 
+.
 Returns the absolute paths to the volumes mounted on the system, as a
 proper Tcl list.  Without any virtual filesystems mounted as root
 volumes, on UNIX, the command will always return
@@ -444,6 +583,7 @@ On Windows, it will return a list of the available local drives
 .QW "a:/ c:/" ).
 If any virtual filesystem has mounted additional
 volumes, they will be in the returned list.
+.\" METHOD: writable
 .TP
 \fBfile writable \fIname\fR
 .
@@ -451,46 +591,55 @@ Returns \fB1\fR if file \fIname\fR is writable by the current user,
 \fB0\fR otherwise.
 .SH "PORTABILITY ISSUES"
 .TP
-\fBUnix\fR\0\0\0\0\0\0\0
+\fBUnix\fR
 .
 These commands always operate using the real user and group identifiers,
-not the effective ones. 
+not the effective ones.
+.TP
+\fBWindows\fR
+.
+The \fBfile owned\fR subcommand uses the user identifier (SID) of
+the process token, not the thread token which may be impersonating
+some other user.
 .SH EXAMPLES
+.PP
 This procedure shows how to search for C files in a given directory
 that have a correspondingly-named object file in the current
 directory:
+.PP
 .CS
 proc findMatchingCFiles {dir} {
-   set files {}
-   switch $::tcl_platform(platform) {
-      windows {
-         set ext .obj
-      }
-      unix {
-         set ext .o
-      }
-   }
-   foreach file [glob \-nocomplain \-directory $dir *.c] {
-      set objectFile [\fBfile tail\fR [\fBfile rootname\fR $file]]$ext
-      if {[\fBfile exists\fR $objectFile]} {
-         lappend files $file
-      }
-   }
-   return $files
+    set files {}
+    switch $::tcl_platform(platform) {
+        windows {
+            set ext .obj
+        }
+        unix {
+           set ext .o
+        }
+    }
+    foreach file [glob -nocomplain -directory $dir *.c] {
+        set objectFile [\fBfile tail\fR [\fBfile rootname\fR $file]]$ext
+        if {[\fBfile exists\fR $objectFile]} {
+            lappend files $file
+        }
+    }
+    return $files
 }
 .CE
 .PP
 Rename a file and leave a symbolic link pointing from the old location
 to the new place:
+.PP
 .CS
 set oldName foobar.txt
 set newName foo/bar.txt
 # Make sure that where we're going to move to exists...
 if {![\fBfile isdirectory\fR [\fBfile dirname\fR $newName]]} {
-   \fBfile mkdir\fR [\fBfile dirname\fR $newName]
+    \fBfile mkdir\fR [\fBfile dirname\fR $newName]
 }
 \fBfile rename\fR $oldName $newName
-\fBfile link\fR \-symbolic $oldName $newName
+\fBfile link\fR -symbolic $oldName $newName
 .CE
 .PP
 On Windows, a file can be
@@ -498,11 +647,17 @@ On Windows, a file can be
 easily enough (equivalent to double-clicking on it in the Explorer
 interface) but the name passed to the operating system must be in
 native format:
+.PP
 .CS
-exec {*}[auto_execok start] {} [\fBfile nativename\fR ~/example.txt]
+exec {*}[auto_execok start] {} [\fBfile nativename\fR C:/Users/fred/example.txt]
 .CE
 .SH "SEE ALSO"
 filename(n), open(n), close(n), eof(n), gets(n), tell(n), seek(n),
 fblocked(n), flush(n)
 .SH KEYWORDS
-attributes, copy files, delete files, directory, file, move files, name, rename files, stat
+attributes, copy files, delete files, directory, file, move files, name,
+rename files, stat, user
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/fileevent.n b/doc/fileevent.n
index c1cea3a..d90e376 100644
--- a/doc/fileevent.n
+++ b/doc/fileevent.n
@@ -1,10 +1,11 @@
 '\"
 '\" Copyright (c) 1994 The Regents of the University of California.
 '\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
+'\" Copyright (c) 2008 Pat Thoyts
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH fileevent n 7.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,113 +13,17 @@
 .SH NAME
 fileevent \- Execute a script when a channel becomes readable or writable
 .SH SYNOPSIS
-\fBfileevent \fIchannelId \fBreadable \fR?\fIscript\fR?
+\fBfileevent \fIchannel \fBreadable \fR?\fIscript\fR?
 .sp
-\fBfileevent \fIchannelId \fBwritable \fR?\fIscript\fR?
+\fBfileevent \fIchannel \fBwritable \fR?\fIscript\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
-This command is used to create \fIfile event handlers\fR.  A file event
-handler is a binding between a channel and a script, such that the script
-is evaluated whenever the channel becomes readable or writable.  File event
-handlers are most commonly used to allow data to be received from another
-process on an event-driven basis, so that the receiver can continue to
-interact with the user while waiting for the data to arrive.  If an
-application invokes \fBgets\fR or \fBread\fR on a blocking channel when
-there is no input data available, the process will block; until the input
-data arrives, it will not be able to service other events, so it will
-appear to the user to
-.QW "freeze up" .
-With \fBfileevent\fR, the process can
-tell when data is present and only invoke \fBgets\fR or \fBread\fR when
-they will not block.
-.PP
-The \fIchannelId\fR argument to \fBfileevent\fR refers to an open
-channel such as a Tcl standard channel (\fBstdin\fR, \fBstdout\fR,
-or \fBstderr\fR), the return value from an invocation of \fBopen\fR
-or \fBsocket\fR, or the result of a channel creation command provided
-by a Tcl extension.
-.PP
-If the \fIscript\fR argument is specified, then \fBfileevent\fR
-creates a new event handler:  \fIscript\fR will be evaluated
-whenever the channel becomes readable or writable (depending on the
-second argument to \fBfileevent\fR).
-In this case \fBfileevent\fR returns an empty string.
-The \fBreadable\fR and \fBwritable\fR event handlers for a file
-are independent, and may be created and deleted separately.
-However, there may be at most one \fBreadable\fR and one \fBwritable\fR
-handler for a file at a given time in a given interpreter.
-If \fBfileevent\fR is called when the specified handler already
-exists in the invoking interpreter, the new script replaces the old one.
-.PP
-If the \fIscript\fR argument is not specified, \fBfileevent\fR
-returns the current script for \fIchannelId\fR, or an empty string
-if there is none.
-If the \fIscript\fR argument is specified as an empty string
-then the event handler is deleted, so that no script will be invoked.
-A file event handler is also deleted automatically whenever
-its channel is closed or its interpreter is deleted.
-.PP
-A channel is considered to be readable if there is unread data
-available on the underlying device.
-A channel is also considered to be readable if there is unread
-data in an input buffer, except in the special case where the
-most recent attempt to read from the channel was a \fBgets\fR
-call that could not find a complete line in the input buffer.
-This feature allows a file to be read a line at a time in nonblocking mode
-using events.
-A channel is also considered to be readable if an end of file or
-error condition is present on the underlying file or device.
-It is important for \fIscript\fR to check for these conditions
-and handle them appropriately;  for example, if there is no special
-check for end of file, an infinite loop may occur where \fIscript\fR
-reads no data, returns, and is immediately invoked again.
-.PP
-A channel is considered to be writable if at least one byte of data
-can be written to the underlying file or device without blocking,
-or if an error condition is present on the underlying file or device.
-.PP
-Event-driven I/O works best for channels that have been
-placed into nonblocking mode with the \fBfconfigure\fR command.
-In blocking mode, a \fBputs\fR command may block if you give it
-more data than the underlying file or device can accept, and a
-\fBgets\fR or \fBread\fR command will block if you attempt to read
-more data than is ready;  no events will be processed while the
-commands block.
-In nonblocking mode \fBputs\fR, \fBread\fR, and \fBgets\fR never block.
-See the documentation for the individual commands for information
-on how they handle blocking and nonblocking channels.
-.PP
-The script for a file event is executed at global level (outside the
-context of any Tcl procedure) in the interpreter in which the
-\fBfileevent\fR command was invoked.
-If an error occurs while executing the script then the
-command registered with \fBinterp bgerror\fR is used to report the error.
-In addition, the file event handler is deleted if it ever returns
-an error;  this is done in order to prevent infinite loops due to
-buggy handlers.
-.SH EXAMPLE
-In this setup \fBGetData\fR will be called with the channel as an
-argument whenever $chan becomes readable.
-.CS
-proc GetData {chan} {
-    if {![eof $chan]} {
-        puts [gets $chan]
-    }
-}
-
-\fBfileevent\fR $chan readable [list GetData $chan]
-.CE
-
-.SH CREDITS
-.PP
-\fBfileevent\fR is based on the \fBaddinput\fR command created
-by Mark Diekhans.
-
+The \fBfileevent\fR command has been superceded by the \fBchan event\fR
+command which supports the same syntax and options.
 .SH "SEE ALSO"
-fconfigure(n), gets(n), interp(n), puts(n), read(n), Tcl_StandardChannels(3)
-
-.SH KEYWORDS
-asynchronous I/O, blocking, channel, event handler, nonblocking, readable,
-script, writable.
+chan(n)
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/filename.n b/doc/filename.n
index e5f939b..aee5545 100644
--- a/doc/filename.n
+++ b/doc/filename.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH filename n 7.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -29,7 +29,7 @@ File names are grouped into three general types based on the starting point
 for the path used to specify the file: absolute, relative, and
 volume-relative.  Absolute names are completely qualified, giving a path to
 the file relative to a particular volume and the root directory on that
-volume.  Relative names are unqualified, giving a path to the file relative 
+volume.  Relative names are unqualified, giving a path to the file relative
 to the current working directory.  Volume-relative names are partially
 qualified, either giving the path relative to the root directory on the
 current volume, or relative to the current directory of the specified
@@ -38,16 +38,18 @@ type of a given path.
 .SH "PATH SYNTAX"
 .PP
 The rules for native names depend on the value reported in the Tcl
-array element \fBtcl_platform(platform)\fR:
+\fBplatform\fR element of the \fBtcl_platform\fR array:
 .TP 10
 \fBUnix\fR
-On Unix and Apple MacOS X platforms, Tcl uses path names where the
+.
+On Unix and Apple macOS platforms, Tcl uses path names where the
 components are separated by slashes.  Path names may be relative or
 absolute, and file names may contain any character other than slash.
 The file names \fB\&.\fR and \fB\&..\fR are special and refer to the
 current directory and the parent of the current directory respectively.
 Multiple adjacent slash characters are interpreted as a single
-separator.  Any number of trailing slash characters at the end of a
+separator, except for the first double slash \fB//\fR in absolute paths.
+Any number of trailing slash characters at the end of a
 path are simply ignored, so the paths \fBfoo\fR, \fBfoo/\fR and
 \fBfoo//\fR are all identical, and in particular \fBfoo/\fR does not
 necessarily mean a directory is being referred.
@@ -57,34 +59,41 @@ The following examples illustrate various forms of path
 names:
 .TP 15
 \fB/\fR
+.
 Absolute path to the root directory.
 .TP 15
 \fB/etc/passwd\fR
+.
 Absolute path to the file named \fBpasswd\fR in the directory
 \fBetc\fR in the root directory.
 .TP 15
 \fB\&.\fR
+.
 Relative path to the current directory.
 .TP 15
 \fBfoo\fR
+.
 Relative path to the file \fBfoo\fR in the current directory.
 .TP 15
 \fBfoo/bar\fR
+.
 Relative path to the file \fBbar\fR in the directory \fBfoo\fR in the
 current directory.
 .TP 15
 \fB\&../foo\fR
+.
 Relative path to the file \fBfoo\fR in the directory above the current
-directory. 
+directory.
 .RE
 .TP
 \fBWindows\fR
+.
 On Microsoft Windows platforms, Tcl supports both drive-relative and UNC
 style names.  Both \fB/\fR and \fB\e\fR may be used as directory separators
 in either type of name.  Drive-relative names consist of an optional drive
 specifier followed by an absolute or relative path.  UNC paths follow the
 general form \fB\e\eservername\esharename\epath\efile\fR, but must at
-the very least contain the server and share components, i.e. 
+the very least contain the server and share components, i.e.
 \fB\e\eservername\esharename\fR.  In both forms,
 the file names \fB.\fR and \fB..\fR are special and refer to the current
 directory and the parent of the current directory respectively.  The
@@ -92,52 +101,61 @@ following examples illustrate various forms of path names:
 .RS
 .TP 15
 \fB\&\e\eHost\eshare/file\fR
+.
 Absolute UNC path to a file called \fBfile\fR in the root directory of
 the export point \fBshare\fR on the host \fBHost\fR.  Note that
 repeated use of \fBfile dirname\fR on this path will give
 \fB//Host/share\fR, and will never give just \fB//Host\fR.
 .TP 15
 \fBc:foo\fR
+.
 Volume-relative path to a file \fBfoo\fR in the current directory on drive
 \fBc\fR.
 .TP 15
 \fBc:/foo\fR
+.
 Absolute path to a file \fBfoo\fR in the root directory of drive
 \fBc\fR.
 .TP 15
 \fBfoo\ebar\fR
+.
 Relative path to a file \fBbar\fR in the \fBfoo\fR directory in the current
 directory on the current volume.
 .TP 15
 \fB\&\efoo\fR
+.
 Volume-relative path to a file \fBfoo\fR in the root directory of the current
 volume.
 .TP 15
 \fB\&\e\efoo\fR
+.
 Volume-relative path to a file \fBfoo\fR in the root directory of the current
 volume.  This is not a valid UNC path, so the assumption is that the
 extra backslashes are superfluous.
 .RE
+.TP
+\fBZipfs\fR
+.RS
+On all platforms where \fBzipfs\fR support is enabled, paths within mounted
+ZIP archives begin with the string returned by the \fBzipfs root\fR command.
+Zipfs paths are case-sensitive on all platforms.
+.RE
 .SH "TILDE SUBSTITUTION"
 .PP
-In addition to the file name rules described above, Tcl also supports
-\fIcsh\fR-style tilde substitution.  If a file name starts with a tilde,
-then the file name will be interpreted as if the first element is
-replaced with the location of the home directory for the given user.  If
-the tilde is followed immediately by a separator, then the \fB$HOME\fR
-environment variable is substituted.  Otherwise the characters between
-the tilde and the next separator are taken as a user name, which is used
-to retrieve the user's home directory for substitution.  This works on
-Unix, MacOS X and Windows (except very old releases).
+Unlike earlier versions of Tcl, Tcl 9 does not do implicit tilde substitution
+on file paths with the exception noted below. The commands \fBfile home\fR and
+\fBfile tildeexpand\fR may be used to explicitly accomplish the same.
 .PP
-Old Windows platforms do not support tilde substitution when a user name
-follows the tilde.  On these platforms, attempts to use a tilde followed
-by a user name will generate an error that the user does not exist when
-Tcl attempts to interpret that part of the path or otherwise access the
-file.  The behaviour of these paths when not trying to interpret them is
-the same as on Unix.  File names that have a tilde without a user name
-will be correctly substituted using the \fB$HOME\fR environment
-variable, just like for Unix.
+The exception to the above is initialization of the \fBauto_path\fR variable
+and the Tcl module search paths as documented in the manpages for
+\fBtclvars\fR and \fBtm\fR. When any path in an environment variable used to
+initialize these starts with a tilde, it will be interpreted as if the first
+element is replaced with the location of the home directory for the given
+user. If the tilde is followed immediately by a separator, the
+\fB$HOME\fR environment variable is substituted. Otherwise the characters
+between the tilde and the next separator are taken as a user name, which is
+used to retrieve the user's home directory for substitution. This works on
+POSIX, macOS and Windows platforms.
 .SH "PORTABILITY ISSUES"
 .PP
 Not all file systems are case sensitive, so scripts should avoid code
@@ -150,11 +168,9 @@ The safest approach is to use names consisting of
 alphanumeric characters only.  Care should be taken with filenames
 which contain spaces (common on Windows systems) and
 filenames where the backslash is the directory separator (Windows
-native path names).  Also Windows 3.1 only supports file
-names with a root of no more than 8 characters and an extension of no
-more than 3 characters.
+native path names).
 .PP
-On Windows platforms there are file and path length restrictions. 
+On Windows platforms there are file and path length restrictions.
 Complete paths or filenames longer than about 260 characters will lead
 to errors in most file operations.
 .PP
@@ -172,7 +188,11 @@ or dots with trailing characters
 .QW .....abc
 is illegal.
 .SH "SEE ALSO"
-file(n), glob(n)
+file(n), glob(n), zipfs(n)
 .SH KEYWORDS
 current directory, absolute file name, relative file name,
 volume-relative file name, portability
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/flush.n b/doc/flush.n
index 4a9ef15..956750e 100644
--- a/doc/flush.n
+++ b/doc/flush.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH flush n 7.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,35 +12,15 @@
 .SH NAME
 flush \- Flush buffered output for a channel
 .SH SYNOPSIS
-\fBflush \fIchannelId\fR
+\fBflush \fIchannel\fR
 .BE
-
 .SH DESCRIPTION
 .PP
-Flushes any output that has been buffered for \fIchannelId\fR.
-.PP
-\fIChannelId\fR must be an identifier for an open channel such as a
-Tcl standard channel (\fBstdout\fR or \fBstderr\fR), the return
-value from an invocation of \fBopen\fR or \fBsocket\fR, or the result
-of a channel creation command provided by a Tcl extension.  The
-channel must have been opened for writing.
-.PP
-If the channel is in blocking mode the command does not return until all the
-buffered output has been flushed to the channel. If the channel is in
-nonblocking mode, the command may return before all buffered output has been
-flushed; the remainder will be flushed in the background as fast as the
-underlying file or device is able to absorb it.
-.SH EXAMPLE
-Prompt for the user to type some information in on the console:
-.CS
-puts -nonewline "Please type your name: "
-\fBflush\fR stdout
-gets stdin name
-puts "Hello there, $name!"
-.CE
-
+The \fBflush\fR command has been superceded by the \fBchan flush\fR
+command which supports the same syntax and options.
 .SH "SEE ALSO"
-file(n), open(n), socket(n), Tcl_StandardChannels(3)
-
-.SH KEYWORDS
-blocking, buffer, channel, flush, nonblocking, output
+chan(n)
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/for.n b/doc/for.n
index 7537e10..99d6003 100644
--- a/doc/for.n
+++ b/doc/for.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH for n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,7 +14,6 @@ for \- 'For' loop
 .SH SYNOPSIS
 \fBfor \fIstart test next body\fR
 .BE
-
 .SH DESCRIPTION
 .PP
 \fBFor\fR is a looping command, similar in structure to the C
@@ -38,7 +37,7 @@ The operation of \fBbreak\fR and \fBcontinue\fR are similar to the
 corresponding statements in C.
 \fBFor\fR returns an empty string.
 .PP
-Note: \fItest\fR should almost always be enclosed in braces.  If not,
+Note that \fItest\fR should almost always be enclosed in braces.  If not,
 variable substitutions will be made before the \fBfor\fR
 command starts executing, which means that variable changes
 made by the loop body will not be considered in the expression.
@@ -48,10 +47,12 @@ expression is evaluated (before
 each loop iteration), so changes in the variables will be visible.
 See below for an example:
 .SH EXAMPLES
+.PP
 Print a line for each of the integers from 0 to 9:
+.PP
 .CS
-for {set x 0} {$x<10} {incr x} {
-   puts "x is $x"
+\fBfor\fR {set x 0} {$x<10} {incr x} {
+    puts "x is $x"
 }
 .CE
 .PP
@@ -62,21 +63,24 @@ before the \fBfor\fR command is run and whether its value is a value
 that is less than or greater than/equal to ten, and this is because
 the expression will be substituted before the \fBfor\fR command is
 executed.
+.PP
 .CS
-for {set x 0} $x<10 {incr x} {
-   puts "x is $x"
+\fBfor\fR {set x 0} $x<10 {incr x} {
+    puts "x is $x"
 }
 .CE
 .PP
 Print out the powers of two from 1 to 1024:
+.PP
 .CS
-for {set x 1} {$x<=1024} {set x [expr {$x * 2}]} {
-   puts "x is $x"
+\fBfor\fR {set x 1} {$x<=1024} {set x [expr {$x * 2}]} {
+    puts "x is $x"
 }
 .CE
-
 .SH "SEE ALSO"
-break, continue, foreach, while
-
+break(n), continue(n), foreach(n), while(n)
 .SH KEYWORDS
-for, iteration, looping
+boolean, for, iteration, loop
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/foreach.n b/doc/foreach.n
index 1a3b2b6..1f9f88e 100644
--- a/doc/foreach.n
+++ b/doc/foreach.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH foreach n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -16,7 +16,6 @@ foreach \- Iterate over all elements in one or more lists
 .br
 \fBforeach \fIvarlist1 list1\fR ?\fIvarlist2 list2 ...\fR? \fIbody\fR
 .BE
-
 .SH DESCRIPTION
 .PP
 The \fBforeach\fR command implements a loop where the loop
@@ -49,8 +48,10 @@ The \fBbreak\fR and \fBcontinue\fR statements may be
 invoked inside \fIbody\fR, with the same effect as in the \fBfor\fR
 command.  \fBForeach\fR returns an empty string.
 .SH EXAMPLES
+.PP
 This loop prints every value in a list together with the square and
 cube of the value:
+.PP
 .CS
 '\" Maintainers: notice the tab hacking below!
 .ta 3i
@@ -63,6 +64,7 @@ puts "Value\etSquare\etCube"	;# Neat-looking header
 .PP
 The following loop uses i and j as loop variables to iterate over
 pairs of elements of a single list.
+.PP
 .CS
 set x {}
 \fBforeach\fR {i j} {a b c d e f} {
@@ -73,6 +75,7 @@ set x {}
 .CE
 .PP
 The next loop uses i and j to iterate over two lists in parallel.
+.PP
 .CS
 set x {}
 \fBforeach\fR i {a b c} j {d e f g} {
@@ -83,6 +86,7 @@ set x {}
 .CE
 .PP
 The two forms are combined in the following example.
+.PP
 .CS
 set x {}
 \fBforeach\fR i {a b c} {j k} {d e f g} {
@@ -91,9 +95,11 @@ set x {}
 # The value of x is "a d e b f g c {} {}"
 # There are 3 iterations of the loop.
 .CE
-
 .SH "SEE ALSO"
 for(n), while(n), break(n), continue(n)
-
 .SH KEYWORDS
-foreach, iteration, list, looping
+foreach, iteration, list, loop
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/format.n b/doc/format.n
index 8456e28..b1e204a 100644
--- a/doc/format.n
+++ b/doc/format.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH format n 8.1 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,7 +14,6 @@ format \- Format a string in the style of sprintf
 .SH SYNOPSIS
 \fBformat \fIformatString \fR?\fIarg arg ...\fR?
 .BE
-
 .SH INTRODUCTION
 .PP
 This command generates a formatted string in a fashion similar to the
@@ -25,14 +24,14 @@ arguments, if any, provide values to be substituted into the result.
 The return value from \fBformat\fR is the formatted string.
 .SH "DETAILS ON FORMATTING"
 .PP
-The command operates by scanning \fIformatString\fR from left to right. 
+The command operates by scanning \fIformatString\fR from left to right.
 Each character from the format string is appended to the result
 string unless it is a percent sign.
 If the character is a \fB%\fR then it is not copied to the result string.
 Instead, the characters following the \fB%\fR character are treated as
 a conversion specifier.
 The conversion specifier controls the conversion of the next successive
-\fIarg\fR to a particular format and the result is appended to 
+\fIarg\fR to a particular format and the result is appended to
 the result string in place of the conversion specifier.
 If there are multiple conversion specifiers in the format string,
 then each one controls the conversion of one additional \fIarg\fR.
@@ -46,6 +45,7 @@ and a conversion character.
 Any of these fields may be omitted except for the conversion character.
 The fields that are present must appear in the order given above.
 The paragraphs below discuss each of these fields in turn.
+.SS "OPTIONAL POSITIONAL SPECIFIER"
 .PP
 If the \fB%\fR is followed by a decimal number and a \fB$\fR, as in
 .QW \fB%2$d\fR ,
@@ -59,37 +59,39 @@ given by the number.
 This follows the XPG3 conventions for positional specifiers.
 If there are any positional specifiers in \fIformatString\fR
 then all of the specifiers must be positional.
+.SS "OPTIONAL FLAGS"
 .PP
 The second portion of a conversion specifier may contain any of the
 following flag characters, in any order:
-.TP 10
-\fB\-\fR
-Specifies that the converted argument should be left-justified 
-in its field (numbers are normally right-justified with leading 
+.IP \fB\-\fR 10
+Specifies that the converted argument should be left-justified
+in its field (numbers are normally right-justified with leading
 spaces if needed).
-.TP 10
-\fB+\fR
-Specifies that a number should always be printed with a sign, 
+.IP \fB+\fR 10
+Specifies that a number should always be printed with a sign,
 even if positive.
-.TP 10
-\fIspace\fR
+.IP \fIspace\fR 10
 Specifies that a space should be added to the beginning of the
 number if the first character is not a sign.
-.TP 10
-\fB0\fR
-Specifies that the number should be padded on the left with 
+.IP \fB0\fR 10
+Specifies that the number should be padded on the left with
 zeroes instead of spaces.
-.TP 10
-\fB#\fR
-Requests an alternate output form. For \fBo\fR and \fBO\fR
-conversions it guarantees that the first digit is always \fB0\fR.
-For \fBx\fR or \fBX\fR conversions, \fB0x\fR or \fB0X\fR (respectively)
+.IP \fB#\fR 10
+Requests an alternate output form. For \fBo\fR conversions,
+\fB0o\fR will be added to the beginning of the result unless
+it is zero. For \fBx\fR or \fBX\fR conversions, \fB0x\fR
+will be added to the beginning of the result unless it is zero.
+For \fBb\fR conversions, \fB0b\fR
 will be added to the beginning of the result unless it is zero.
+For \fBd\fR conversions, \fB0d\fR there is no effect unless
+the \fB0\fR specifier is used as well: In that case, \fB0d\fR
+will be added to the beginning.
 For all floating-point conversions (\fBe\fR, \fBE\fR, \fBf\fR,
-\fBg\fR, and \fBG\fR) it guarantees that the result always 
+\fBg\fR, and \fBG\fR) it guarantees that the result always
 has a decimal point.
-For \fBg\fR and \fBG\fR conversions it specifies that 
+For \fBg\fR and \fBG\fR conversions it specifies that
 trailing zeroes should not be removed.
+.SS "OPTIONAL FIELD WIDTH"
 .PP
 The third portion of a conversion specifier is a decimal number giving a
 minimum field width for this conversion.
@@ -98,12 +100,13 @@ If the converted argument contains fewer characters than the
 minimum field width then it will be padded so that it is as wide
 as the minimum field width.
 Padding normally occurs by adding extra spaces on the left of the
-converted argument, but the \fB0\fR and \fB\-\fR flags 
+converted argument, but the \fB0\fR and \fB\-\fR flags
 may be used to specify padding with zeroes on the left or with
 spaces on the right, respectively.
 If the minimum field width is specified as \fB*\fR rather than
 a number, then the next argument to the \fBformat\fR command
 determines the minimum field width; it must be an integer value.
+.SS "OPTIONAL PRECISION/BOUND"
 .PP
 The fourth portion of a conversion specifier is a precision,
 which consists of a period followed by a number.
@@ -116,94 +119,103 @@ point (however, trailing zeroes after the decimal point will still
 be omitted unless the \fB#\fR flag has been specified).
 For integer conversions, it specifies a minimum number of digits
 to print (leading zeroes will be added if necessary).
-For \fBs\fR conversions it specifies the maximum number of characters to be 
-printed; if the string is longer than this then the trailing characters will be dropped.
-If the precision is specified with \fB*\fR rather than a number
+For \fBs\fR conversions it specifies the maximum number of characters to be
+printed; if the string is longer than this then the trailing characters will
+be dropped. If the precision is specified with \fB*\fR rather than a number
 then the next argument to the \fBformat\fR command determines the precision;
 it must be a numeric string.
+.SS "OPTIONAL SIZE MODIFIER"
 .PP
 The fifth part of a conversion specifier is a size modifier,
-which must be \fBll\fR, \fBh\fR, or \fBl\fR.
+which must be \fBll\fR, \fBh\fR, \fBl\fR, \fBz\fR, \fBt\fR, or \fBL\fR.
 If it is \fBll\fR it specifies that an integer value is taken
 without truncation for conversion to a formatted substring.
 If it is \fBh\fR it specifies that an integer value is
 truncated to a 16-bit range before converting.  This option is rarely useful.
-If it is \fBl\fR it specifies that the integer value is 
-truncated to the same range as that produced by the \fBwide()\fR
+If it is \fBl\fR (or \fBj\fR or \fBq\fR) it specifies that the integer value
+is truncated to the same range as that produced by the \fBwide()\fR
 function of the \fBexpr\fR command (at least a 64-bit range).
-If neither \fBh\fR nor \fBl\fR are present, the integer value is
-truncated to the same range as that produced by the \fBint()\fR
-function of the \fBexpr\fR command (at least a 32-bit range, but
-determined by the value of \fBtcl_platform(wordSize)\fR).
+If it is \fBz\fR or \fBt\fR it specifies that the integer value is
+truncated to the range determined by the value of the \fBpointerSize\fR
+element of the \fBtcl_platform\fR array.
+If it is \fBL\fR it specifies that an integer or double value is taken
+without truncation for conversion to a formatted substring.
+If neither of those are present, the integer value is
+truncated to a 32-bit range.
+.SS "MANDATORY CONVERSION TYPE"
 .PP
 The last thing in a conversion specifier is an alphabetic character
 that determines what kind of conversion to perform.
 The following conversion characters are currently supported:
-.TP 10
-\fBd\fR
+.IP \fBd\fR 10
 Convert integer to signed decimal string.
-.TP 10
-\fBu\fR
+.IP \fBu\fR 10
 Convert integer to unsigned decimal string.
-.TP 10
-\fBi\fR
+.IP \fBi\fR 10
 Convert integer to signed decimal string (equivalent to \fBd\fR).
-.TP 10
-\fBo\fR
+.IP \fBo\fR 10
 Convert integer to unsigned octal string.
-.TP 10
-\fBx\fR or \fBX\fR
+.IP "\fBx\fR or \fBX\fR" 10
 Convert integer to unsigned hexadecimal string, using digits
 .QW 0123456789abcdef
 for \fBx\fR and
 .QW 0123456789ABCDEF
 for \fBX\fR).
-.TP 10
-\fBc\fR
+.IP \fBb\fR 10
+Convert integer to unsigned binary string, using digits 0 and 1.
+.IP \fBc\fR 10
 Convert integer to the Unicode character it represents.
-.TP 10
-\fBs\fR
+.IP \fBs\fR 10
 No conversion; just insert string.
-.TP 10
-\fBf\fR
-Convert number to signed decimal string of 
-the form \fIxx.yyy\fR, where the number of \fIy\fR's is determined by 
+.IP \fBf\fR 10
+Convert number to signed decimal string of
+the form \fIxx.yyy\fR, where the number of \fIy\fR's is determined by
 the precision (default: 6).
 If the precision is 0 then no decimal point is output.
-.TP 10
-\fBe\fR or \fBE\fR
-Convert number to scientific notation in the 
-form \fIx.yyy\fBe\(+-\fIzz\fR, where the number of \fIy\fR's is determined 
+.IP "\fBe\fR or \fBE\fR" 10
+Convert number to scientific notation in the
+form \fIx.yyy\fBe\(+-\fIzz\fR, where the number of \fIy\fR's is determined
 by the precision (default: 6).
 If the precision is 0 then no decimal point is output.
-If the \fBE\fR form is used then \fBE\fR is 
+If the \fBE\fR form is used then \fBE\fR is
 printed instead of \fBe\fR.
-.TP 10
-\fBg\fR or \fBG\fR
-If the exponent is less than \-4 or greater than or equal to the 
-precision, then convert number as for \fB%e\fR or 
+.IP "\fBg\fR or \fBG\fR" 10
+If the exponent is less than \-4 or greater than or equal to the
+precision, then convert number as for \fB%e\fR or
 \fB%E\fR.
 Otherwise convert as for \fB%f\fR.
 Trailing zeroes and a trailing decimal point are omitted.
-.TP 10
-\fB%\fR
+.IP "\fBa\fR or \fBA\fR" 10
+Convert double to hexadecimal notation in the form
+\fI0x1.yyy\fBp\(+-\fIzz\fR, where the number of \fIy\fR's is
+determined by the precision (default: 13).
+If the \fBA\fR form is used then the hex characters
+are printed in uppercase.
+.IP \fB%\fR 10
 No conversion: just insert \fB%\fR.
+.IP \fBp\fR 10
+Shorthand form for \fB0x%zx\fR, so it outputs the integer in
+hexadecimal form with \fB0x\fR prefix.
 .SH "DIFFERENCES FROM ANSI SPRINTF"
 .PP
 The behavior of the format command is the same as the
 ANSI C \fBsprintf\fR procedure except for the following
 differences:
 .IP [1]
-\fB%p\fR and \fB%n\fR specifiers are not supported.
+Tcl guarantees that it will be working with UNICODE characters.
 .IP [2]
+\fB%n\fR specifier is not supported.
+.IP [3]
 For \fB%c\fR conversions the argument must be an integer value,
 which will then be converted to the corresponding character value.
-.IP [3]
+.IP [4]
 The size modifiers are ignored when formatting floating-point values.
-The \fBll\fR modifier has no \fBsprintf\fR counterpart.
+The \fBb\fR specifier has no \fBsprintf\fR counterpart.
 .SH EXAMPLES
+.PP
 Convert the numeric value of a UNICODE character to the character
 itself:
+.PP
 .CS
 set value 120
 set char [\fBformat\fR %c $value]
@@ -211,12 +223,14 @@ set char [\fBformat\fR %c $value]
 .PP
 Convert the output of \fBtime\fR into seconds to an accuracy of
 hundredths of a second:
+.PP
 .CS
 set us [lindex [time $someTclCode] 0]
 puts [\fBformat\fR "%.2f seconds to execute" [expr {$us / 1e6}]]
 .CE
 .PP
 Create a packed X11 literal color specification:
+.PP
 .CS
 # Each color-component should be in range (0..255)
 set color [\fBformat\fR "#%02x%02x%02x" $r $g $b]
@@ -225,6 +239,7 @@ set color [\fBformat\fR "#%02x%02x%02x" $r $g $b]
 Use XPG3 format codes to allow reordering of fields (a technique that
 is often used in localized message catalogs; see \fBmsgcat\fR) without
 reordering the data values passed to \fBformat\fR:
+.PP
 .CS
 set fmt1 "Today, %d shares in %s were bought at $%.2f each"
 puts [\fBformat\fR $fmt1 123 "Global BigCorp" 19.37]
@@ -234,6 +249,7 @@ puts [\fBformat\fR $fmt2 123 "Global BigCorp" 19.37]
 .CE
 .PP
 Print a small table of powers of three:
+.PP
 .CS
 # Set up the column widths
 set w1 5
@@ -248,8 +264,8 @@ puts $sep
 # Print the contents of the table
 set p 1
 for {set i 0} {$i<=20} {incr i} {
-   puts [\fBformat\fR "| %*d | %*ld |" $w1 $i $w2 $p]
-   set p [expr {wide($p) * 3}]
+    puts [\fBformat\fR "| %*d | %*ld |" $w1 $i $w2 $p]
+    set p [expr {wide($p) * 3}]
 }
 
 # Finish off by printing the separator again
@@ -259,3 +275,6 @@ puts $sep
 scan(n), sprintf(3), string(n)
 .SH KEYWORDS
 conversion specifier, format, sprintf, string, substitution
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/fpclassify.n b/doc/fpclassify.n
new file mode 100644
index 0000000..204c890
--- /dev/null
+++ b/doc/fpclassify.n
@@ -0,0 +1,73 @@
+'\"
+'\" Copyright (c) 2018 Kevin B. Kenny <kennykb@acm.org>. All rights reserved
+'\" Copyright (c) 2019 Donal Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH fpclassify n 9.0 Tcl "Tcl Float Classifier"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+fpclassify \- Floating point number classification of Tcl values
+.SH SYNOPSIS
+package require \fBtcl 9.0\fR
+.sp
+\fBfpclassify \fIvalue\fR
+.BE
+.SH DESCRIPTION
+The \fBfpclassify\fR command takes a floating point number, \fIvalue\fR, and
+returns one of the following strings that describe it:
+.IP \fBzero\fR
+\fIvalue\fR is a floating point zero.
+.IP \fBsubnormal\fR
+\fIvalue\fR is the result of a gradual underflow.
+.IP \fBnormal\fR
+\fIvalue\fR is an ordinary floating-point number (not zero, subnormal,
+infinite, nor NaN).
+.IP \fBinfinite\fR
+\fIvalue\fR is a floating-point infinity.
+.IP \fBnan\fR
+\fIvalue\fR is Not-a-Number.
+.PP
+The \fBfpclassify\fR command throws an error if value is not a floating-point
+value and cannot be converted to one.
+.SH EXAMPLE
+.PP
+This shows how to check whether the result of a computation is numerically
+safe or not. (Note however that it does not guard against numerical errors;
+just against representational problems.)
+.PP
+.CS
+set value [command-that-computes-a-value]
+switch [\fBfpclassify\fR $value] {
+    normal - zero {
+        puts "Result is $value"
+    }
+    infinite {
+        puts "Result is infinite"
+    }
+    subnormal {
+        puts "Result is $value - WARNING! precision lost"
+    }
+    nan {
+        puts "Computation completely failed"
+    }
+}
+.CE
+.SH "SEE ALSO"
+expr(n), mathfunc(n)
+.SH KEYWORDS
+floating point
+.SH STANDARDS
+This command depends on the \fBfpclassify\fR() C macro conforming to
+.QW "ISO C99"
+(i.e., to ISO/IEC 9899:1999).
+.SH COPYRIGHT
+.nf
+Copyright \(co 2018 Kevin B. Kenny <kennykb@acm.org>. All rights reserved
+.fi
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/gets.n b/doc/gets.n
index fd1b87a..59951e3 100644
--- a/doc/gets.n
+++ b/doc/gets.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH gets n 7.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,56 +12,15 @@
 .SH NAME
 gets \- Read a line from a channel
 .SH SYNOPSIS
-\fBgets \fIchannelId\fR ?\fIvarName\fR?
+\fBgets \fIchannel\fR ?\fIvarName\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
-This command reads the next line from \fIchannelId\fR, returns everything
-in the line up to (but not including) the end-of-line character(s), and
-discards the end-of-line character(s).
-.PP
-\fIChannelId\fR must be an identifier for an open channel such as the
-Tcl standard input channel (\fBstdin\fR), the return value from an
-invocation of \fBopen\fR or \fBsocket\fR, or the result of a channel
-creation command provided by a Tcl extension. The channel must have
-been opened for input.
-.PP
-If \fIvarName\fR is omitted the line is returned as the result of the
-command.
-If \fIvarName\fR is specified then the line is placed in the variable by
-that name and the return value is a count of the number of characters
-returned.
-.PP
-If end of file occurs while scanning for an end of
-line, the command returns whatever input is available up to the end of file.
-If \fIchannelId\fR is in nonblocking mode and there is not a full
-line of input available, the command returns an empty string and
-does not consume any input.
-If \fIvarName\fR is specified and an empty string is returned in
-\fIvarName\fR because of end-of-file or because of insufficient
-data in nonblocking mode, then the return count is -1.
-Note that if \fIvarName\fR is not specified then the end-of-file
-and no-full-line-available cases can
-produce the same results as if there were an input line consisting
-only of the end-of-line character(s).
-The \fBeof\fR and \fBfblocked\fR commands can be used to distinguish
-these three cases.
-.SH "EXAMPLE"
-This example reads a file one line at a time and prints it out with
-the current line number attached to the start of each line.
-.PP
-.CS
-set chan [open "some.file.txt"]
-set lineNumber 0
-while {[\fBgets\fR $chan line] >= 0} {
-    puts "[incr lineNumber]: $line"
-}
-close $chan
-.CE
-
+The \fBgets\fR command has been superceded by the \fBchan gets\fR
+command which supports the same syntax and options.
 .SH "SEE ALSO"
-file(n), eof(n), fblocked(n), Tcl_StandardChannels(3)
-
-.SH KEYWORDS
-blocking, channel, end of file, end of line, line, nonblocking, read
+chan(n)
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/glob.n b/doc/glob.n
index 701a623..45be608 100644
--- a/doc/glob.n
+++ b/doc/glob.n
@@ -4,7 +4,6 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
 .TH glob n 8.3 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,63 +11,80 @@
 .SH NAME
 glob \- Return names of files that match patterns
 .SH SYNOPSIS
-\fBglob \fR?\fIswitches\fR? \fIpattern \fR?\fIpattern ...\fR?
+\fBglob \fR?\fIswitches\fR? ?\fIpattern ...\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 This command performs file name
 .QW globbing
 in a fashion similar to
-the csh shell.  It returns a list of the files whose names match any
-of the \fIpattern\fR arguments.  No particular order is guaranteed
-in the list, so if a sorted list is required the caller should use 
+the csh shell or bash shell.
+It returns a list of the files whose names match any
+of the \fIpattern\fR arguments. No particular order is guaranteed
+in the list, so if a sorted list is required the caller should use
 \fBlsort\fR.
-.LP
+.SS OPTIONS
+.PP
 If the initial arguments to \fBglob\fR start with \fB\-\fR then
-they are treated as switches.  The following switches are
+they are treated as switches. The following switches are
 currently supported:
+.\" OPTION: -directory
 .TP
-\fB\-directory\fR \fIdirectory\fR
+\fB\-directory\fI directory\fR
+.
 Search for files which match the given patterns starting in the given
-\fIdirectory\fR.  This allows searching of directories whose name
+\fIdirectory\fR. This allows searching of directories whose name
 contains glob-sensitive characters without the need to quote such
-characters explicitly.  This option may not be used in conjunction with
+characters explicitly. This option may not be used in conjunction with
 \fB\-path\fR, which is used to allow searching for complete file paths
 whose names may contain glob-sensitive characters.
+.\" OPTION: -join
 .TP
 \fB\-join\fR
+.
 The remaining pattern arguments, after option processing, are treated
 as a single pattern obtained by joining the arguments with directory
 separators.
+.\" OPTION: -nocomplain
 .TP
 \fB\-nocomplain\fR
-Allows an empty list to be returned without error;  without this
-switch an error is returned if the result list would be empty.
+.
+Allows an empty list to be returned without error; This is the
+default behavior in Tcl 9.0, so this switch has no effect any more.
+.\" OPTION: -path
 .TP
-\fB\-path\fR \fIpathPrefix\fR
+\fB\-path\fI pathPrefix\fR
+.
 Search for files with the given \fIpathPrefix\fR where the rest of the name
-matches the given patterns.  This allows searching for files with names
-similar to a given file (as opposed to a directory) even when the names 
-contain glob-sensitive 
-characters.  This option may not be used in conjunction with
-\fB\-directory\fR.  For example, to find all files with the same root name
-as $path, but differing extensions, you should use \fBglob 
--path [file rootname $path] .*\fR which will work even if $path contains
+matches the given patterns. This allows searching for files with names
+similar to a given file (as opposed to a directory) even when the names
+contain glob-sensitive
+characters. This option may not be used in conjunction with
+\fB\-directory\fR. For example, to find all files with the same root name
+as $path, but differing extensions, you should use
+.QW "\fBglob \-path [file rootname $path] .*\fR"
+which will work even if \fB$path\fR contains
 numerous glob-sensitive characters.
+.\" OPTION: -tails
 .TP
 \fB\-tails\fR
+.
 Only return the part of each file found which follows the last directory
-named in any \fB\-directory\fR or \fB\-path\fR path specification.  
-Thus \fBglob -tails -directory $dir *\fR is equivalent to 
-\fBset pwd [pwd] ; cd $dir ; glob *; cd $pwd\fR.  For 
-\fB\-path\fR specifications, the returned names will include the last
-path segment, so \fBglob -tails -path [file rootname ~/foo.tex] .*\fR 
+named in any \fB\-directory\fR or \fB\-path\fR path specification.
+Thus
+.QW "\fBglob \-tails \-directory $dir *\fR"
+is equivalent to
+.QW "\fBset pwd [pwd]; cd $dir; glob *; cd $pwd\fR" .
+For \fB\-path\fR specifications, the returned names will include the last
+path segment, so
+.QW "\fBglob \-tails \-path [file rootname /home/fred/foo.tex] .*\fR"
 will return paths like \fBfoo.aux foo.bib foo.tex\fR etc.
+.\" OPTION: -types
 .TP
-\fB\-types\fR \fItypeList\fR
+\fB\-types\fI typeList\fR
+.
 Only list files or directories which match \fItypeList\fR, where the items
-in the list have two forms.  The first form is like the \-type option of
+in the list have two forms. The first form is like the \-type option of
 the Unix find command:
 \fIb\fR (block special file),
 \fIc\fR (character special file),
@@ -78,145 +94,127 @@ the Unix find command:
 \fIp\fR (named pipe),
 or \fIs\fR (socket), where multiple types may be specified in the list.
 \fBGlob\fR will return all files which match at least one of the types given.
-Note that symbolic links will be returned both if \fB\-types l\fR is given, 
-or if the target of a link matches the requested type.  So, a link to
+Note that symbolic links will be returned both if \fB\-types l\fR is given,
+or if the target of a link matches the requested type. So, a link to
 a directory will be returned if \fB\-types d\fR was specified.
 .RS
 .PP
 The second form specifies types where all the types given must match.
 These are \fIr\fR, \fIw\fR, \fIx\fR as file permissions, and
-\fIreadonly\fR, \fIhidden\fR as special permission cases.  On the
-Macintosh, MacOS types and creators are also supported, where any item
-which is four characters long is assumed to be a MacOS type
-(e.g. \fBTEXT\fR).  Items which are of the form \fI{macintosh type XXXX}\fR
+\fIreadonly\fR, \fIhidden\fR as special permission cases. On the
+Macintosh, macOS types and creators are also supported, where any item
+which is four characters long is assumed to be a macOS type
+(e.g. \fBTEXT\fR). Items which are of the form \fI{macintosh type XXXX}\fR
 or \fI{macintosh creator XXXX}\fR will match types or creators
-respectively.  Unrecognized types, or specifications of multiple MacOS
+respectively. Unrecognized types, or specifications of multiple macOS
 types/creators will signal an error.
 .PP
 The two forms may be mixed, so \fB\-types {d f r w}\fR will find all
 regular files OR directories that have both read AND write permissions.
 The following are equivalent:
-.RS
+.PP
 .CS
 \fBglob \-type d *\fR
 \fBglob */\fR
 .CE
-.RE
+.PP
 except that the first case doesn't return the trailing
 .QW /
 and is more platform independent.
 .RE
+.\" OPTION: --
 .TP
 \fB\-\|\-\fR
-Marks the end of switches.  The argument following this one will
+.
+Marks the end of switches. The argument following this one will
 be treated as a \fIpattern\fR even if it starts with a \fB\-\fR.
+.SS "GLOBBING PATTERNS"
 .PP
 The \fIpattern\fR arguments may contain any of the following
-special characters:
-.TP 10
-\fB?\fR
+special characters, which are a superset of those supported by
+\fBstring match\fR:
+.IP \fB?\fR 10
 Matches any single character.
-.TP 10
-\fB*\fR
+.IP \fB*\fR 10
 Matches any sequence of zero or more characters.
-.TP 10
-\fB[\fIchars\fB]\fR
-Matches any single character in \fIchars\fR.  If \fIchars\fR
+.IP \fB[\fIchars\fB]\fR 10
+Matches any single character in \fIchars\fR. If \fIchars\fR
 contains a sequence of the form \fIa\fB\-\fIb\fR then any
 character between \fIa\fR and \fIb\fR (inclusive) will match.
-.TP 10
-\fB\e\fIx\fR
+.IP \fB\e\fIx\fR 10
 Matches the character \fIx\fR.
-.TP 10
-\fB{\fIa\fB,\fIb\fB,\fI...\fR}
-Matches any of the strings \fIa\fR, \fIb\fR, etc.
-.LP
+.IP \fB{\fIa\fB,\fIb\fB,\fI...\fB}\fR 10
+Matches any of the sub-patterns \fIa\fR, \fIb\fR, etc.
+.PP
 On Unix, as with csh, a
-.QW .
+.QW . \|
 at the beginning of a file's name or just after a
 .QW /
 must be matched explicitly or with a {} construct, unless the
 \fB\-types hidden\fR flag is given (since
-.QW .
-at the beginning of a file's name indicates that it is hidden).  On
+.QW . \|
+at the beginning of a file's name indicates that it is hidden). On
 other platforms, files beginning with a
-.QW .
+.QW . \|
 are handled no differently to any others, except the special directories
-.QW .
+.QW . \|
 and
-.QW ..
+.QW .. \|
 which must be matched explicitly (this is to avoid a recursive pattern like
-.QW "glob -join * * * *"
+.QW "glob \-join * * * *"
 from recursing up the directory hierarchy as well as down). In addition, all
 .QW /
 characters must be matched explicitly.
-.LP
-If the first character in a \fIpattern\fR is
-.QW ~
-then it refers to the home directory for the user whose name follows the
-.QW ~ .
-If the
-.QW ~
-is followed immediately by
-.QW /
-then the value of the HOME environment variable is used.
-.LP
+.PP
 The \fBglob\fR command differs from csh globbing in two ways.
 First, it does not sort its result list (use the \fBlsort\fR
 command if you want the list sorted).
 Second, \fBglob\fR only returns the names of files that actually
-exist;  in csh no check for existence is made unless a pattern
+exist; in csh no check for existence is made unless a pattern
 contains a ?, *, or [] construct.
-.LP
-When the \fBglob\fR command returns relative paths whose filenames
-start with a tilde
-.QW ~
-(for example through \fBglob *\fR or \fBglob -tails\fR, the returned
-list will not quote the tilde with
-.QW ./ .
-This means care must be taken if those names are later to
-be used with \fBfile join\fR, to avoid them being interpreted as
-absolute paths pointing to a given user's home directory.
-.SH "PORTABILITY ISSUES"
-.PP
-\fBWindows\fR
-.
+.SH "WINDOWS PORTABILITY ISSUES"
+.PP
 For Windows UNC names, the servername and sharename components of the path
-may not contain ?, *, or [] constructs.  On Windows NT, if \fIpattern\fR is
-of the form
-.QW \fB~\fIusername\fB@\fIdomain\fR ,
-it refers to the home
-directory of the user whose account information resides on the specified NT
-domain server.  Otherwise, user account information is obtained from
-the local computer.  On Windows 95 and 98, \fBglob\fR accepts patterns
-like
-.QW .../
+may not contain ?, *, or [] constructs.
+.PP
+Since the backslash character has a special meaning to the glob
+command, glob patterns containing Windows style path separators need
+special care. The pattern
+.QW \fIC:\e\efoo\e\e*\fR
+is interpreted as
+.QW \fIC:\efoo\e*\fR
+where
+.QW \fI\ef\fR
+will match the single character
+.QW \fIf\fR
 and
-.QW ..../
-for successively higher up parent directories.
-.PP
-Since the backslash character has a special meaning to the glob 
-command, glob patterns containing Windows style path separators need 
-special care. The pattern \fIC:\e\efoo\e\e*\fR is interpreted as 
-\fIC:\efoo\e*\fR where \fI\ef\fR will match the single character \fIf\fR 
-and \fI\e*\fR will match the single character \fI*\fR and will not be 
-interpreted as a wildcard character. One solution to this problem is 
-to use the Unix style forward slash as a path separator. Windows style 
-paths can be converted to Unix style paths with the command \fBfile
-join $path\fR (or \fBfile normalize $path\fR in Tcl 8.4). 
+.QW \fI\e*\fR
+will match the single character
+.QW \fI*\fR
+and will not be
+interpreted as a wildcard character. One solution to this problem is
+to use the Unix style forward slash as a path separator. Windows style
+paths can be converted to Unix style paths with the command
+.QW "\fBfile join\fR \fB$path\fR"
+or
+.QW "\fBfile normalize\fR \fB$path\fR" .
 .SH EXAMPLES
+.PP
 Find all the Tcl files in the current directory:
+.PP
 .CS
 \fBglob\fR *.tcl
 .CE
 .PP
 Find all the Tcl files in the user's home directory, irrespective of
 what the current directory is:
+.PP
 .CS
-\fBglob\fR \-directory ~ *.tcl
+\fBglob\fR \-directory [file home] *.tcl
 .CE
 .PP
 Find all subdirectories of the current directory:
+.PP
 .CS
 \fBglob\fR \-type d *
 .CE
@@ -227,12 +225,14 @@ a
 .QW b
 or the sequence
 .QW cde :
+.PP
 .CS
 \fBglob\fR \-type f *{a,b,cde}*
 .CE
-
 .SH "SEE ALSO"
 file(n)
-
 .SH KEYWORDS
 exist, file, glob, pattern
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/global.n b/doc/global.n
index 34db146..e6d2678b 100644
--- a/doc/global.n
+++ b/doc/global.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH global n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,9 +12,8 @@
 .SH NAME
 global \- Access global variables
 .SH SYNOPSIS
-\fBglobal \fIvarname \fR?\fIvarname ...\fR?
+\fBglobal \fR?\fIvarname ...\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 This command has no effect unless executed in the context of a proc body.
@@ -25,13 +24,15 @@ in the list returned by \fBinfo locals\fR).
 .PP
 If \fIvarname\fR contains namespace qualifiers, the local variable's name is
 the unqualified name of the global variable, as determined by the
-\fBnamespace tail\fR command. 
+\fBnamespace tail\fR command.
 .PP
 \fIvarname\fR is always treated as the name of a variable, not an
 array element.  An error is returned if the name looks like an array element,
 such as \fBa(b)\fR.
 .SH EXAMPLES
+.PP
 This procedure sets the namespace variable \fI::a::x\fR
+.PP
 .CS
 proc reset {} {
     \fBglobal\fR a::x
@@ -44,15 +45,18 @@ buffer, separated by newlines.  It is useful for situations when you
 want to build a message piece-by-piece (as if with \fBputs\fR) but
 send that full message in a single piece (e.g. over a connection
 opened with \fBsocket\fR or as part of a counted HTTP response).
+.PP
 .CS
 proc accum {string} {
     \fBglobal\fR accumulator
     append accumulator $string \en
 }
 .CE
-
 .SH "SEE ALSO"
 namespace(n), upvar(n), variable(n)
-
 .SH KEYWORDS
 global, namespace, procedure, variable
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/history.n b/doc/history.n
index e1f9781..1c2b581 100644
--- a/doc/history.n
+++ b/doc/history.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH history n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -37,16 +37,20 @@ matches the event in the sense of the \fBstring match\fR command.
 The \fBhistory\fR command can take any of the following forms:
 .TP
 \fBhistory\fR
-Same
-as \fBhistory info\fR, described below.
+.
+Same as \fBhistory info\fR, described below.
+.\" METHOD: add
 .TP
 \fBhistory add\fI command \fR?\fBexec\fR?
+.
 Adds the \fIcommand\fR argument to the history list as a new event.  If
 \fBexec\fR is specified (or abbreviated) then the command is also
 executed and its result is returned.  If \fBexec\fR is not specified
 then an empty string is returned as result.
+.\" METHOD: change
 .TP
 \fBhistory change\fI newValue\fR ?\fIevent\fR?
+.
 Replaces the value recorded for an event with \fInewValue\fR.  \fIEvent\fR
 specifies the event to replace, and
 defaults to the \fIcurrent\fR event (not event \fB\-1\fR).  This command
@@ -54,32 +58,44 @@ is intended for use in commands that implement new forms of history
 substitution and wish to replace the current event (which invokes the
 substitution) with the command created through substitution.  The return
 value is an empty string.
+.\" METHOD: clear
 .TP
 \fBhistory clear\fR
+.
 Erase the history list.  The current keep limit is retained.
 The history event numbers are reset.
+.\" METHOD: event
 .TP
 \fBhistory event\fR ?\fIevent\fR?
+.
 Returns the value of the event given by \fIevent\fR.  \fIEvent\fR
 defaults to \fB\-1\fR.
+.\" METHOD: info
 .TP
 \fBhistory info \fR?\fIcount\fR?
+.
 Returns a formatted string (intended for humans to read) giving
 the event number and contents for each of the events in the history
 list except the current event.  If \fIcount\fR is specified
 then only the most recent \fIcount\fR events are returned.
+.\" METHOD: keep
 .TP
 \fBhistory keep \fR?\fIcount\fR?
+.
 This command may be used to change the size of the history list to
 \fIcount\fR events.  Initially, 20 events are retained in the history
 list.  If \fIcount\fR is not specified, the current keep limit is returned.
+.\" METHOD: nextid
 .TP
 \fBhistory nextid\fR
+.
 Returns the number of the next event to be recorded
 in the history list.  It is useful for things like printing the
 event number in command-line prompts.
+.\" METHOD: redo
 .TP
 \fBhistory redo \fR?\fIevent\fR?
+.
 Re-executes the command indicated by \fIevent\fR and returns its result.
 \fIEvent\fR defaults to \fB\-1\fR.  This command results in history
 revision:  see below for details.
@@ -93,10 +109,14 @@ history operations \fBsubstitute\fR and \fBwords\fR have been removed.
 The history option \fBredo\fR results in much simpler
 .QW "history revision" .
 When this option is invoked then the most recent event
-is modified to eliminate the history command and replace it with
-the result of the history command.
+is modified to eliminate the \fBhistory\fR command and replace it with
+the result of the \fBhistory\fR command.
 If you want to redo an event without modifying history, then use
 the \fBevent\fR operation to retrieve some event,
 and the \fBadd\fR operation to add it to history and execute it.
 .SH KEYWORDS
 event, history, record
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/http.n b/doc/http.n
index 26f1298..eef3eee 100644
--- a/doc/http.n
+++ b/doc/http.n
@@ -1,55 +1,72 @@
 '\"
 '\" Copyright (c) 1995-1997 Sun Microsystems, Inc.
-'\" Copyright (c) 1998-2000 by Ajuba Solutions.
+'\" Copyright (c) 1998-2000 Ajuba Solutions.
 '\" Copyright (c) 2004 ActiveState Corporation.
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-.TH "http" n 2.7 http "Tcl Bundled Packages"
+'\"
+.TH "http" n 2.10 http "Tcl Bundled Packages"
 .so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
 http \- Client-side implementation of the HTTP/1.1 protocol
 .SH SYNOPSIS
-\fBpackage require http ?2.7?\fR
+.nf
+\fBpackage require http\fR ?\fB2.10\fR?
 .\" See Also -useragent option documentation in body!
-.sp
-\fB::http::config \fI?options?\fR
-.sp
-\fB::http::geturl \fIurl ?options?\fR
-.sp
-\fB::http::formatQuery\fR \fIkey value\fR ?\fIkey value\fR ...?
-.sp
-\fB::http::reset\fR \fItoken\fR ?\fIwhy\fR?
-.sp
+
+\fB::http::config\fR ?\fI\-option value\fR ...?
+\fB::http::geturl \fIurl\fR ?\fI\-option value\fR ...?
+\fB::http::formatQuery\fI key value\fR ?\fIkey value\fR ...?
+\fB::http::quoteString\fI value\fR
+\fB::http::reset\fI token\fR ?\fIwhy\fR?
 \fB::http::wait \fItoken\fR
-.sp
 \fB::http::status \fItoken\fR
-.sp
 \fB::http::size \fItoken\fR
-.sp
-\fB::http::code \fItoken\fR
-.sp
-\fB::http::ncode \fItoken\fR
-.sp
-\fB::http::meta \fItoken\fR
-.sp
-\fB::http::data \fItoken\fR
-.sp
 \fB::http::error \fItoken\fR
-.sp
+\fB::http::postError \fItoken\fR
 \fB::http::cleanup \fItoken\fR
-.sp
-\fB::http::register \fIproto port command\fR
-.sp
+\fB::http::requestLine\fI token\fR
+\fB::http::requestHeaders\fI token\fR ?\fIheaderName\fR?
+\fB::http::requestHeaderValue\fI token headerName\fR
+\fB::http::responseLine\fI token\fR
+\fB::http::responseCode\fI token\fR
+\fB::http::reasonPhrase\fI code\fR
+\fB::http::responseHeaders\fI token\fR ?\fIheaderName\fR?
+\fB::http::responseHeaderValue\fI token headerName\fR
+\fB::http::responseInfo\fI token\fR
+\fB::http::responseBody\fI token\fR
+\fB::http::register \fIproto port command\fR ?\fIsocketCmdVarName\fR? ?\fIuseSockThread\fR? ?\fIendToEndProxy\fR?
+\fB::http::registerError \fIsock\fR ?\fImessage\fR?
 \fB::http::unregister \fIproto\fR
+\fB::http::code \fItoken\fR
+\fB::http::data \fItoken\fR
+\fB::http::meta \fItoken\fR ?\fIheaderName\fR?
+\fB::http::metaValue\fI token headerName\fR
+\fB::http::ncode \fItoken\fR
+.fi
+.SH "EXPORTED COMMANDS"
+.PP
+Namespace \fBhttp\fR exports the commands \fBconfig\fR, \fBformatQuery\fR,
+\fBgeturl\fR, \fBpostError\fR, \fBquoteString\fR, \fBreasonPhrase\fR,
+\fBregister\fR,
+\fBregisterError\fR, \fBrequestHeaders\fR, \fBrequestHeaderValue\fR,
+\fBrequestLine\fR, \fBresponseBody\fR, \fBresponseCode\fR,
+\fBresponseHeaders\fR, \fBresponseHeaderValue\fR, \fBresponseInfo\fR,
+\fBresponseLine\fR,
+\fBreset\fR, \fBunregister\fR, and \fBwait\fR.
+.PP
+It does not export the commands \fBcleanup\fR, \fBcode\fR, \fBdata\fR,
+\fBerror\fR, \fBmeta\fR, \fBmetaValue\fR, \fBncode\fR,
+\fBsize\fR, or \fBstatus\fR.
 .BE
 .SH DESCRIPTION
 .PP
 The \fBhttp\fR package provides the client side of the HTTP/1.1
-protocol, as defined in RFC 2616.
+protocol, as defined in RFC 9110 to 9112, which supersede RFC 7230
+to RFC 7235, which in turn supersede RFC 2616.
 The package implements the GET, POST, and HEAD operations
 of HTTP/1.1.  It allows configuration of a proxy host to get through
 firewalls.  The package is compatible with the \fBSafesock\fR security
@@ -60,23 +77,37 @@ a custom \fBsocket\fR command, via \fB::http::register\fR.
 .PP
 The \fB::http::geturl\fR procedure does a HTTP transaction.
 Its \fIoptions \fR determine whether a GET, POST, or HEAD transaction
-is performed.  
+is performed.
 The return value of \fB::http::geturl\fR is a token for the transaction.
-The value is also the name of an array in the ::http namespace
-that contains state information about the transaction.  The elements
-of this array are described in the \fBSTATE ARRAY\fR section.
+The token can be supplied as an argument to other commands, to manage the
+transaction and examine its results.
 .PP
 If the \fB\-command\fR option is specified, then
 the HTTP operation is done in the background.
 \fB::http::geturl\fR returns immediately after generating the
-HTTP request and the callback is invoked
+HTTP request and the \fB\-command\fR callback is invoked
 when the transaction completes.  For this to work, the Tcl event loop
 must be active.  In Tk applications this is always true.  For pure-Tcl
 applications, the caller can use \fB::http::wait\fR after calling
 \fB::http::geturl\fR to start the event loop.
+.PP
+\fBNote:\fR The event queue is even used without the \fB\-command\fR option.
+As a side effect, arbitrary commands may be processed while \fBhttp::geturl\fR
+is running.
+.PP
+When the HTTP server has replied to the request, call the command
+\fB::http::responseInfo\fR, which
+returns a \fBdict\fR of metadata that is essential for identifying a
+successful transaction and making use of the response.  See
+section \fBMETADATA\fR for details of the information returned.
+The response itself is returned by command \fB::http::responseBody\fR,
+unless it has been redirected to a file by the \fI\-channel\fR option
+of \fB::http::geturl\fR.
 .SH COMMANDS
+.\" COMMAND: config
 .TP
 \fB::http::config\fR ?\fIoptions\fR?
+.
 The \fB::http::config\fR command is used to set and query the name of the
 proxy server and port, and the User-Agent name used in the HTTP
 requests.  If no options are specified, then the current configuration
@@ -85,104 +116,266 @@ of the flags described below.  In this case the current value of
 that setting is returned.  Otherwise, the options should be a set of
 flags and values that define the configuration:
 .RS
+.\" OPTION: -accept
 .TP
-\fB\-accept\fR \fImimetypes\fR
+\fB\-accept\fI mimetypes\fR
+.
 The Accept header of the request.  The default is */*, which means that
-all types of documents are accepted.  Otherwise you can supply a 
+all types of documents are accepted.  Otherwise you can supply a
 comma-separated list of mime type patterns that you are
 willing to receive.  For example,
 .QW "image/gif, image/jpeg, text/*" .
+.\" OPTION: -cookiejar
+.TP
+\fB\-cookiejar\fI command\fR
+.VS TIP406
+The cookie store for the package to use to manage HTTP cookies.
+\fIcommand\fR is a command prefix list; if the empty list (the
+default value) is used, no cookies will be sent by requests or stored
+from responses. The command indicated by \fIcommand\fR, if supplied,
+must obey the \fBCOOKIE JAR PROTOCOL\fR described below.
+.VE TIP406
+.\" OPTION: -pipeline
 .TP
-\fB\-proxyhost\fR \fIhostname\fR
-The name of the proxy host, if any.  If this value is the
-empty string, the URL host is contacted directly.
+\fB\-pipeline\fI boolean\fR
+.
+Specifies whether HTTP/1.1 transactions on a persistent socket will be
+pipelined.  See the \fBPERSISTENT SOCKETS\fR section for details. The default
+is 1.
+.\" OPTION: -postfresh
 .TP
-\fB\-proxyport\fR \fInumber\fR
-The proxy port number.
+\fB\-postfresh\fI boolean\fR
+.
+Specifies whether requests that use the \fBPOST\fR method will always use a
+fresh socket, overriding the \fB\-keepalive\fR option of
+command \fBhttp::geturl\fR.  See the \fBPERSISTENT SOCKETS\fR section for
+details. The default is 0.
+.\" OPTION: -proxyauth
 .TP
-\fB\-proxyfilter\fR \fIcommand\fR
+\fB\-proxyauth\fI string\fR
+.
+If non-empty, the string is supplied to the proxy server as the value of the
+request header Proxy-Authorization.  This option can be used for HTTP Basic
+Authentication.  If the proxy server requires authentication by another
+technique, e.g. Digest Authentication, the \fB\-proxyauth\fR option is not
+useful.  In that case the caller must expect a 407 response from the proxy,
+compute the authentication value to be supplied, and use the \fB\-headers\fR
+option to supply it as the value of the Proxy-Authorization header.
+.\" OPTION: -proxyfilter
+.TP
+\fB\-proxyfilter\fI command\fR
+.
 The command is a callback that is made during
 \fB::http::geturl\fR
 to determine if a proxy is required for a given host.  One argument, a
 host name, is added to \fIcommand\fR when it is invoked.  If a proxy
 is required, the callback should return a two-element list containing
-the proxy server and proxy port.  Otherwise the filter should return
-an empty list.  The default filter returns the values of the
-\fB\-proxyhost\fR and \fB\-proxyport\fR settings if they are
-non-empty.
+the proxy server and proxy port.  Otherwise the filter command should return
+an empty list.
+.RS
+.PP
+The default value of \fB\-proxyfilter\fR is \fBhttp::ProxyRequired\fR, and
+this command returns the values of the \fB\-proxyhost\fR and
+\fB\-proxyport\fR settings if they are non-empty.  The options
+\fB\-proxyhost\fR, \fB\-proxyport\fR, and \fB\-proxynot\fR are used only
+by \fBhttp::ProxyRequired\fR, and nowhere else in \fB::http::geturl\fR.
+A user-supplied \fB\-proxyfilter\fR command may use these options, or
+alternatively it may obtain values from elsewhere in the calling script.
+In the latter case, any values provided for \fB\-proxyhost\fR,
+\fB\-proxyport\fR, and \fB\-proxynot\fR are unused.
+.PP
+The \fB::http::geturl\fR command runs the \fB\-proxyfilter\fR callback inside
+a \fBcatch\fR command.  Therefore an error in the callback command does
+not call the \fBbgerror\fR handler.  See the \fBERRORS\fR section for
+details.
+.RE
+.\" OPTION: -proxyhost
+.TP
+\fB\-proxyhost\fI hostname\fR
+.
+The host name or IP address of the proxy server, if any.  If this value is
+the empty string, the URL host is contacted directly.  See
+\fB\-proxyfilter\fR for how the value is used.
+.\" OPTION: -proxynot
 .TP
-\fB\-urlencoding\fR \fIencoding\fR
+\fB\-proxynot\fI list\fR
+.
+A Tcl list of domain names and IP addresses that should be accessed directly,
+not through the proxy server.  The target hostname is compared with each list
+element using a case-insensitive \fBstring match\fR.  It is often convenient
+to use the wildcard "*" at the start of a domain name (e.g. *.example.com) or
+at the end of an IP address (e.g. 192.168.0.*).  See \fB\-proxyfilter\fR for
+how the value is used.
+.\" OPTION: -proxyport
+.TP
+\fB\-proxyport\fI number\fR
+.
+The port number of the proxy server.  See \fB\-proxyfilter\fR for how the
+value is used.
+.\" OPTION: -repost
+.TP
+\fB\-repost\fI boolean\fR
+.
+Specifies what to do if a POST request over a persistent connection fails
+because the server has half-closed the connection.  If boolean \fBtrue\fR, the
+request
+will be automatically retried; if boolean \fBfalse\fR it will not, and the
+application
+that uses \fBhttp::geturl\fR is expected to seek user confirmation before
+retrying the POST.  The value \fBtrue\fR should be used only under certain
+conditions. See the \fBPERSISTENT SOCKETS\fR section for details. The
+default is 0.
+.\" OPTION: -threadlevel
+.TP
+\fB\-threadlevel\fI level\fR
+.
+Specifies whether and how to use the \fBThread\fR package.  Possible values
+of \fIlevel\fR are 0, 1 or 2.
+.RS
+.IP \fB0\fR
+(the default) do not use Thread
+.IP \fB1\fR
+use Thread if it is available, do not use it if it is unavailable
+.IP \fB2\fR
+use Thread if it is available, raise an error if it is unavailable
+.PP
+The Tcl \fBsocket -async\fR command can block in adverse cases (e.g. a slow
+DNS lookup).  Using the Thread package works around this problem, for both
+HTTP and HTTPS transactions.  Values of \fIlevel\fR other than 0 are
+available only to the main interpreter in each thread.  See
+section \fBTHREADS\fR for more information.
+.RE
+.\" OPTION: -urlencoding
+.TP
+\fB\-urlencoding\fI encoding\fR
+.
 The \fIencoding\fR used for creating the x-url-encoded URLs with
-\fB::http::formatQuery\fR.  The default is \fButf-8\fR, as specified by RFC
-2718.  Prior to http 2.5 this was unspecified, and that behavior can be
-returned by specifying the empty string (\fB{}\fR), although
-\fIiso8859-1\fR is recommended to restore similar behavior but without the
-\fB::http::formatQuery\fR throwing an error processing non-latin-1
-characters.
-.TP
-\fB\-useragent\fR \fIstring\fR
-The value of the User-Agent header in the HTTP request.  The default is
-.QW "\fBTcl http client package 2.7\fR" .
+\fB::http::formatQuery\fR and \fB::http::quoteString\fR.
+The default is \fButf-8\fR, as specified by RFC 2718.
+.\" OPTION: -useragent
+.TP
+\fB\-useragent\fI string\fR
+.
+The value of the User-Agent header in the HTTP request.  In an unsafe
+interpreter, the default value depends upon the operating system, and
+the version numbers of \fBhttp\fR and \fBTcl\fR, and is (for example)
+.QW "\fBMozilla/5.0 (Windows; U; Windows NT 10.0) http/2.10.0 Tcl/9.0.0\fR" .
+A safe interpreter cannot determine its operating system, and so the default
+in a safe interpreter is to use a Windows 10 value with the current version
+numbers of \fBhttp\fR and \fBTcl\fR.
+.\" OPTION: -zip
+.TP
+\fB\-zip\fI boolean\fR
+.
+If the value is boolean \fBtrue\fR, then by default requests will send a header
+.QW "\fBAccept-Encoding: gzip,deflate\fR" .
+If the value is boolean \fBfalse\fR, then by default requests will send a header
+.QW "\fBAccept-Encoding: identity\fR" .
+In either case the default can be overridden for an individual request by
+supplying a custom \fBAccept-Encoding\fR header in the \fB\-headers\fR option
+of \fBhttp::geturl\fR. The default value is 1.
 .RE
+.\" COMMAND: geturl
 .TP
-\fB::http::geturl\fR \fIurl\fR ?\fIoptions\fR? 
+\fB::http::geturl\fI url\fR ?\fIoptions\fR?
+.
 The \fB::http::geturl\fR command is the main procedure in the package.
-The \fB\-query\fR option causes a POST operation and
+The \fB\-query\fR or \fB\-querychannel\fR option causes a POST operation and
 the \fB\-validate\fR option causes a HEAD operation;
 otherwise, a GET operation is performed.  The \fB::http::geturl\fR command
-returns a \fItoken\fR value that can be used to get
-information about the transaction.  See the \fBSTATE ARRAY\fR and
+returns a \fItoken\fR value that can be passed as an argument to other commands
+to get information about the transaction.  See the \fBMETADATA\fR and
 \fBERRORS\fR section for
 details.  The \fB::http::geturl\fR command blocks until the operation
 completes, unless the \fB\-command\fR option specifies a callback
 that is invoked when the HTTP transaction completes.
 \fB::http::geturl\fR takes several options:
 .RS
+.\" OPTION: -binary
 .TP
-\fB\-binary\fR \fIboolean\fR
+\fB\-binary\fI boolean\fR
+.
 Specifies whether to force interpreting the URL data as binary.  Normally
 this is auto-detected (anything not beginning with a \fBtext\fR content
-type or whose content encoding is \fBgzip\fR or \fBcompress\fR is
+type or whose content encoding is \fBgzip\fR or \fBdeflate\fR is
 considered binary data).
+.\" OPTION: -blocksize
 .TP
-\fB\-blocksize\fR \fIsize\fR
+\fB\-blocksize\fI size\fR
+.
 The block size used when reading the URL.
 At most \fIsize\fR bytes are read at once.  After each block, a call to the
 \fB\-progress\fR callback is made (if that option is specified).
+.\" OPTION: -channel
 .TP
-\fB\-channel\fR \fIname\fR
+\fB\-channel\fI name\fR
+.
 Copy the URL contents to channel \fIname\fR instead of saving it in
-\fBstate(body)\fR.
+a Tcl variable for retrieval by \fB::http::responseBody\fR.
+.\" OPTION: -command
 .TP
-\fB\-command\fR \fIcallback\fR
-Invoke \fIcallback\fR after the HTTP transaction completes.
-This option causes \fB::http::geturl\fR to return immediately.
-The \fIcallback\fR gets an additional argument that is the \fItoken\fR returned
+\fB\-command\fI callback\fR
+.
+The presence of this option causes \fB::http::geturl\fR to return immediately.
+After the HTTP transaction completes, the value of \fIcallback\fR is expanded,
+an additional argument is added, and the resulting command is evaluated.
+The additional argument is the \fItoken\fR returned
 from \fB::http::geturl\fR. This token is the name of an array that is
 described in the \fBSTATE ARRAY\fR section.  Here is a template for the
 callback:
 .RS
+.PP
 .CS
 proc httpCallback {token} {
-    upvar #0 $token state
-    # Access state as a Tcl array
+    upvar 0 $token state
+    # Access state as a Tcl array defined in this proc
+    ...
+    return
 }
 .CE
+.PP
+The \fB::http::geturl\fR command runs the \fB\-command\fR callback inside
+a \fBcatch\fR command.  Therefore an error in the callback command does
+not call the \fBbgerror\fR handler.  See the \fBERRORS\fR section for
+details.
 .RE
+.\" OPTION: -guesstype
 .TP
-\fB\-handler\fR \fIcallback\fR
-Invoke \fIcallback\fR whenever HTTP data is available; if present, nothing
-else will be done with the HTTP data.  This procedure gets two additional
-arguments: the socket for the HTTP data and the \fItoken\fR returned from
+\fB\-guesstype\fI boolean\fR
+.
+Attempt to guess the \fBContent-Type\fR and character set when a misconfigured
+server provides no information.  The default value is \fIfalse\fR (do
+nothing).  If boolean \fItrue\fR then, if the server does not send a
+\fBContent-Type\fR header, or if it sends the value "application/octet-stream",
+\fBhttp::geturl\fR will attempt to guess appropriate values.  This is not
+intended to become a general-purpose tool, and currently it is limited to
+detecting XML documents that begin with an XML declaration.  In this case
+the \fBContent-Type\fR is changed to "application/xml", the binary flag
+state(binary) is changed to 0, and the character set is changed to
+the one specified by the "encoding" tag of the XML line, or to utf-8 if no
+encoding is specified.  Not used if a \fB\-channel\fR is specified.
+.\" OPTION: -handler
+.TP
+\fB\-handler\fI callback\fR
+.
+If this option is absent, \fBhttp::geturl\fR processes incoming data itself,
+either appending it to the state(body) variable or writing it to the -channel.
+But if the \fB\-handler\fR option is present, \fBhttp::geturl\fR does not do
+this processing and instead calls \fIcallback\fR.
+Whenever HTTP data is available, the value of \fIcallback\fR is expanded, an
+additional two arguments are added, and the resulting command is evaluated.
+The two additional
+arguments are: the socket for the HTTP data and the \fItoken\fR returned from
 \fB::http::geturl\fR.  The token is the name of a global array that is
 described in the \fBSTATE ARRAY\fR section.  The procedure is expected
 to return the number of bytes read from the socket.  Here is a
 template for the callback:
 .RS
+.PP
 .CS
 proc httpHandlerCallback {socket token} {
-    upvar #0 $token state
-    # Access socket, and state as a Tcl array
+    upvar 0 $token state
+    # Access socket, and state as a Tcl array defined in this proc
     # For example...
     ...
     set data [read $socket 1000]
@@ -191,200 +384,538 @@ proc httpHandlerCallback {socket token} {
     return $nbytes
 }
 .CE
+.PP
+The \fBhttp::geturl\fR code for the \fB\-handler\fR option is not compatible
+with either compression or chunked transfer-encoding.  If \fB\-handler\fR is
+specified, then to work around these issues \fBhttp::geturl\fR will reduce the
+HTTP protocol to 1.0, and override the \fB\-zip\fR option (i.e. it will
+send the header \fBAccept-Encoding: identity\fR instead
+of \fBAccept-Encoding: gzip,deflate\fR).
+.PP
+If options \fB\-handler\fR and \fB\-channel\fR are used together, the handler
+is responsible for copying the data from the HTTP socket to the specified
+channel.  The name of the channel is available to the handler as element
+\fB\-channel\fR of the token array.
+.PP
+The \fB::http::geturl\fR command runs the \fB\-handler\fR callback inside
+a \fBcatch\fR command.  Therefore an error in the callback command does
+not call the \fBbgerror\fR handler.  See the \fBERRORS\fR section for
+details.
 .RE
+.\" OPTION: -headers
 .TP
-\fB\-headers\fR \fIkeyvaluelist\fR
-This option is used to add extra headers to the HTTP request.  The
+\fB\-headers\fI keyvaluelist\fR
+.
+This option is used to add headers not already specified
+by \fB::http::config\fR to the HTTP request.  The
 \fIkeyvaluelist\fR argument must be a list with an even number of
 elements that alternate between keys and values.  The keys become
 header field names.  Newlines are stripped from the values so the
 header cannot be corrupted.  For example, if \fIkeyvaluelist\fR is
 \fBPragma no-cache\fR then the following header is included in the
 HTTP request:
+.RS
+.PP
 .CS
 Pragma: no-cache
 .CE
+.RE
+.\" OPTION: -keepalive
 .TP
-\fB\-keepalive\fR \fIboolean\fR
-If true, attempt to keep the connection open for servicing
+\fB\-keepalive\fI boolean\fR
+.
+If boolean \fBtrue\fR, attempt to keep the connection open for servicing
 multiple requests.  Default is 0.
+.\" OPTION: -method
 .TP
-\fB\-method\fR \fItype\fR
+\fB\-method\fI type\fR
+.
 Force the HTTP request method to \fItype\fR. \fB::http::geturl\fR will
-auto-select GET, POST or HEAD based on other options, but this option
-enables choices like PUT and DELETE for webdav support.
+auto-select GET, POST or HEAD based on other options, but this option overrides
+that selection and enables choices like PUT and DELETE for WebDAV support.
+.RS
+.PP
+It is the caller's responsibility to ensure that the headers and request body
+(if any) conform to the requirements of the request method.  For example, if
+using \fB\-method\fI POST\fR to send a POST with an empty request body, the
+caller must also supply the option
+.PP
+.CS
+\-headers {Content-Length 0}
+.CE
+.RE
+.\" OPTION: -myaddr
 .TP
-\fB\-myaddr\fR \fIaddress\fR
+\fB\-myaddr\fI address\fR
+.
 Pass an specific local address to the underlying \fBsocket\fR call in case
 multiple interfaces are available.
+.\" OPTION: -progress
 .TP
-\fB\-progress\fR \fIcallback\fR
-The \fIcallback\fR is made after each transfer of data from the URL.
-The callback gets three additional arguments: the \fItoken\fR from
+\fB\-progress\fI callback\fR
+.
+If the \fB\-progress\fR option is present,
+then the \fIcallback\fR is made after each transfer of data from the URL.
+The value of \fIcallback\fR is expanded, an additional three arguments are
+added, and the resulting command is evaluated.
+The three additional arguments are: the \fItoken\fR returned from
 \fB::http::geturl\fR, the expected total size of the contents from the
-\fBContent-Length\fR meta-data, and the current number of bytes
-transferred so far.  The expected total size may be unknown, in which
+\fBContent-Length\fR response header, and the current number of bytes
+transferred so far.  The token is the name of a global array that is
+described in the \fBSTATE ARRAY\fR section.  The expected total size may
+be unknown, in which
 case zero is passed to the callback.  Here is a template for the
 progress callback:
 .RS
+.PP
 .CS
 proc httpProgress {token total current} {
-    upvar #0 $token state
+    upvar 0 $token state
+    # Access state as a Tcl array defined in this proc
+    ...
+    return
 }
 .CE
 .RE
+.\" OPTION: -protocol
 .TP
-\fB\-protocol\fR \fIversion\fR
+\fB\-protocol\fI version\fR
+.
 Select the HTTP protocol version to use. This should be 1.0 or 1.1 (the
 default). Should only be necessary for servers that do not understand or
 otherwise complain about HTTP/1.1.
+.\" OPTION: -query
 .TP
-\fB\-query\fR \fIquery\fR
-This flag causes \fB::http::geturl\fR to do a POST request that passes the
-\fIquery\fR to the server. The \fIquery\fR must be an x-url-encoding
-formatted query.  The \fB::http::formatQuery\fR procedure can be used to
-do the formatting.
+\fB\-query\fI query\fR
+.
+This flag (if the value is non-empty) causes \fB::http::geturl\fR to do a
+POST request that passes the string
+\fIquery\fR verbatim to the server as the request payload.
+The content format (and encoding) of \fIquery\fR is announced by the request
+header \fBContent-Type\fR which is set by the option \fB\-type\fR.  Any value
+of \fB\-type\fR is permitted, and it is the responsibility of the caller to
+supply \fIquery\fR in the correct format.
+.RS
+.PP
+If \fB\-type\fR is not specified, it defaults to
+\fIapplication/x-www-form-urlencoded\fR, which requires \fIquery\fR to be an
+x-url-encoding formatted query-string (this \fB\-type\fR and query format are
+used in a POST submitted from an html form).  The \fB::http::formatQuery\fR
+procedure can be used to do the formatting.
+.RE
+.\" OPTION: -queryblocksize
 .TP
-\fB\-queryblocksize\fR \fIsize\fR
+\fB\-queryblocksize\fI size\fR
+.
 The block size used when posting query data to the URL.
-At most 
+At most
 \fIsize\fR
 bytes are written at once.  After each block, a call to the
 \fB\-queryprogress\fR
 callback is made (if that option is specified).
+.\" OPTION: -querychannel
 .TP
-\fB\-querychannel\fR \fIchannelID\fR
+\fB\-querychannel\fI channelID\fR
+.
 This flag causes \fB::http::geturl\fR to do a POST request that passes the
 data contained in \fIchannelID\fR to the server. The data contained in
 \fIchannelID\fR must be an x-url-encoding
 formatted query unless the \fB\-type\fR option below is used.
-If a Content-Length header is not specified via the \fB\-headers\fR options,
-\fB::http::geturl\fR attempts to determine the size of the post data
+If a \fBContent-Length\fR header is not specified via the \fB\-headers\fR
+options, \fB::http::geturl\fR attempts to determine the size of the post data
 in order to create that header.  If it is
 unable to determine the size, it returns an error.
+.\" OPTION: -queryprogress
 .TP
-\fB\-queryprogress\fR \fIcallback\fR
-The \fIcallback\fR is made after each transfer of data to the URL
-(i.e. POST) and acts exactly like the \fB\-progress\fR option (the
-callback format is the same).
+\fB\-queryprogress\fI callback\fR
+.
+If the \fB\-queryprogress\fR option is present,
+then the \fIcallback\fR is made after each transfer of data to the URL
+in a POST request (i.e. a call to \fB::http::geturl\fR with
+option \fB\-query\fR or \fB\-querychannel\fR) and acts exactly like
+the \fB\-progress\fR option (the callback format is the same).
+.\" OPTION: -strict
 .TP
-\fB\-strict\fR \fIboolean\fR
-Whether to enforce RFC 3986 URL validation on the request.  Default is 1.
+\fB\-strict\fI boolean\fR
+.
+If true then the command will test that the URL complies with RFC 3986, i.e.
+that it has no characters that should be "x-url-encoded" (e.g. a space should
+be encoded to "%20").  Default value is 1.
+.\" OPTION: -timeout
 .TP
-\fB\-timeout\fR \fImilliseconds\fR
+\fB\-timeout\fI milliseconds\fR
+.
 If \fImilliseconds\fR is non-zero, then \fB::http::geturl\fR sets up a timeout
 to occur after the specified number of milliseconds.
 A timeout results in a call to \fB::http::reset\fR and to
 the \fB\-command\fR callback, if specified.
-The return value of \fB::http::status\fR is \fBtimeout\fR
+The return value of \fB::http::status\fR (and the value of the \fIstatus\fR key
+in the dictionary returned by \fB::http::responseInfo\fR) is \fBtimeout\fR
 after a timeout has occurred.
+.\" OPTION: -type
 .TP
-\fB\-type\fR \fImime-type\fR
+\fB\-type\fI mime-type\fR
+.
 Use \fImime-type\fR as the \fBContent-Type\fR value, instead of the
 default value (\fBapplication/x-www-form-urlencoded\fR) during a
 POST operation.
+.\" OPTION: -validate
 .TP
-\fB\-validate\fR \fIboolean\fR
+\fB\-validate\fI boolean\fR
+.
 If \fIboolean\fR is non-zero, then \fB::http::geturl\fR does an HTTP HEAD
-request.  This request returns meta information about the URL, but the
-contents are not returned.  The meta information is available in the
-\fBstate(meta) \fR variable after the transaction.  See the
-\fBSTATE ARRAY\fR section for details.
+request.  This server returns the same status line and response headers as it
+would for a HTTP GET request, but omits the response entity
+(the URL "contents").  The response headers are available after the
+transaction using command \fB::http::responseHeaders\fR or, for selected
+information, \fB::http::responseInfo\fR.
 .RE
+.\" COMMAND: formatQuery
 .TP
-\fB::http::formatQuery\fR \fIkey value\fR ?\fIkey value\fR ...?
+\fB::http::formatQuery\fI key value\fR ?\fIkey value\fR ...?
+.
 This procedure does x-url-encoding of query data.  It takes an even
 number of arguments that are the keys and values of the query.  It
 encodes the keys and values, and generates one string that has the
 proper & and = separators.  The result is suitable for the
 \fB\-query\fR value passed to \fB::http::geturl\fR.
+.\" COMMAND: quoteString
 .TP
-\fB::http::reset\fR \fItoken\fR ?\fIwhy\fR?
-This command resets the HTTP transaction identified by \fItoken\fR, if
-any.  This sets the \fBstate(status)\fR value to \fIwhy\fR, which defaults to \fBreset\fR, and then calls the registered \fB\-command\fR callback.
+\fB::http::quoteString\fI value\fR
+.
+This procedure does x-url-encoding of string.  It takes a single argument and
+encodes it.
+.\" COMMAND: reset
 .TP
-\fB::http::wait\fR \fItoken\fR
-This is a convenience procedure that blocks and waits for the
+\fB::http::reset\fI token\fR ?\fIwhy\fR?
+.
+This command resets the HTTP transaction identified by \fItoken\fR, if any.
+This sets the \fBstate(status)\fR value to \fIwhy\fR, which defaults to
+\fBreset\fR, and then calls the registered \fB\-command\fR callback.
+.\" COMMAND: wait
+.TP
+\fB::http::wait\fI token\fR
+.
+This command blocks and waits for the
 transaction to complete.  This only works in trusted code because it
 uses \fBvwait\fR.  Also, it is not useful for the case where
 \fB::http::geturl\fR is called \fIwithout\fR the \fB\-command\fR option
 because in this case the \fB::http::geturl\fR call does not return
 until the HTTP transaction is complete, and thus there is nothing to
 wait for.
+.\" COMMAND: status
 .TP
-\fB::http::data\fR \fItoken\fR
-This is a convenience procedure that returns the \fBbody\fR element
-(i.e., the URL data) of the state array.
-.TP
-\fB::http::error\fR \fItoken\fR
-This is a convenience procedure that returns the \fBerror\fR element
-of the state array.
-.TP
-\fB::http::status\fR \fItoken\fR
-This is a convenience procedure that returns the \fBstatus\fR element of
-the state array.
-.TP
-\fB::http::code\fR \fItoken\fR
-This is a convenience procedure that returns the \fBhttp\fR element of the
-state array.
+\fB::http::status\fI token\fR
+.
+This command returns a description of the status of the HTTP transaction.
+The return value is the empty string until the HTTP transaction is
+completed; after completion it has one of the values ok, eof, error,
+timeout, and reset.  The meaning of these values is described in the
+section \fBERRORS\fR (below).
+.PP
+.RS
+The name "status" is not related to the terms "status line" and
+"status code" that are defined for a HTTP response.
+.RE
+.\" COMMAND: size
 .TP
-\fB::http::ncode\fR \fItoken\fR
-This is a convenience procedure that returns just the numeric return
-code (200, 404, etc.) from the \fBhttp\fR element of the state array.
+\fB::http::size\fI token\fR
+.
+This command returns the number of bytes
+received so far from the URL in the \fB::http::geturl\fR call.
+.\" COMMAND: error
 .TP
-\fB::http::size\fR \fItoken\fR
-This is a convenience procedure that returns the \fBcurrentsize\fR
-element of the state array, which represents the number of bytes
-received from the URL in the \fB::http::geturl\fR call.
+\fB::http::error\fI token\fR
+.
+This command returns the error information if the HTTP transaction failed,
+or the empty string if there was no error.  The information is a Tcl list of
+the error message, stack trace, and error code.
+.\" COMMAND: postError
 .TP
-\fB::http::meta\fR \fItoken\fR
-This is a convenience procedure that returns the \fBmeta\fR
-element of the state array which contains the HTTP response
-headers. See below for an explanation of this element.
+\fB::http::postError\fI token\fR
+.
+A POST request is a call to \fB::http::geturl\fR with either
+the \fB\-query\fR or \fB\-querychannel\fR option.
+The \fB::http::postError\fR command returns the error information generated
+when a HTTP POST request sends its request-body to the server; or the empty
+string if there was no error.  The information is a Tcl list of the error
+message, stack trace, and error code.  When this type of error occurs,
+the \fB::http::geturl\fR command continues the transaction and attempts to
+receive a response from the server.
+.\" COMMAND: cleanup
 .TP
-\fB::http::cleanup\fR \fItoken\fR
+\fB::http::cleanup\fI token\fR
+.
 This procedure cleans up the state associated with the connection
 identified by \fItoken\fR.  After this call, the procedures
-like \fB::http::data\fR cannot be used to get information
+like \fB::http::responseBody\fR cannot be used to get information
 about the operation.  It is \fIstrongly\fR recommended that you call
 this function after you are done with a given HTTP request.  Not doing
 so will result in memory not being freed, and if your app calls
 \fB::http::geturl\fR enough times, the memory leak could cause a
 performance hit...or worse.
+.\" COMMAND: requestLine
+.TP
+\fB::http::requestLine\fI token\fR
+.
+This command returns the "request line" sent to the server.
+The "request line" is the first line of a HTTP client request, and has three
+elements separated by spaces: the HTTP method, the URL relative to the server,
+and the HTTP version. Examples:
+.PP
+.RS
+GET / HTTP/1.1
+GET /introduction.html?subject=plumbing HTTP/1.1
+POST /forms/order.html HTTP/1.1
+.RE
+.\" COMMAND: requestHeaders
+.TP
+\fB::http::requestHeaders\fI token\fR ?\fIheaderName\fR?
+.
+This command returns the HTTP request header names and values, in the
+order that they were sent to the server, as a Tcl list of the form
+?name value ...?  Header names are case-insensitive and are converted to lower
+case.  The return value is not a \fBdict\fR because some header names may occur
+more than once.  If one argument is supplied, all request headers
+are returned.  If two arguments are supplied, the
+second provides the value of a header name.  Only headers with the requested
+name (converted to lower case) are returned.  If no such headers are found,
+an empty list is returned.
+.\" COMMAND: requestHeaderValue
+.TP
+\fB::http::requestHeaderValue\fI token headerName\fR
+.
+This command returns the value of the HTTP request header named
+\fIheaderName\fR.  Header names are case-insensitive and are converted to
+lower case.  If no such header exists, the return value is the empty string.
+If there are multiple headers named \fIheaderName\fR, the result is obtained
+by joining the individual values with the string ", " (comma and space),
+preserving their order.
+.\" COMMAND: responseLine
+.TP
+\fB::http::responseLine\fI token\fR
+.
+This command returns the first line of the server response: the
+HTTP "status line".  The "status line" has three
+elements separated by spaces: the HTTP version, a three-digit numerical
+"status code", and a "reason phrase".  Only the reason phrase may contain
+spaces.  Examples:
+.PP
+.RS
+HTTP/1.1 200 OK
+HTTP/1.0 404 Not Found
+.RE
+.RS
+The "status code" is a three-digit number in the range 100 to 599.
+A value of 200 is the normal return from a GET request, and its matching
+"reason phrase" is "OK".  Codes beginning with 4 or 5 indicate errors.
+Codes beginning with 3 are redirection errors.  In this case the
+\fBLocation\fR response header specifies a new URL that contains the
+requested information.
+.PP
+The "reason phrase" is a textual description of the "status code": it may
+vary from server to server,
+and can be changed without affecting the HTTP protocol.  The recommended
+values (RFC 7231 and IANA assignments) for each code are provided by the
+command \fB::http::reasonPhrase\fR.
+.RE
+.\" COMMAND: responseCode
+.TP
+\fB::http::responseCode\fI token\fR
+.
+This command returns the "status code" (200, 404, etc.) of the server
+"status line".  If a three-digit code cannot be found, the full status
+line is returned.  See command \fB::http::responseLine\fR for more information
+on the "status line".
+.\" COMMAND: reasonPhrase
 .TP
-\fB::http::register\fR \fIproto port command\fR
+\fB::http::reasonPhrase\fI code\fR
+.
+This command returns the IANA recommended "reason phrase" for a particular
+"status code" returned by a HTTP server.  The argument \fIcode\fR is a valid
+status code, and therefore is an integer in the range 100 to 599 inclusive.
+For numbers in this range with no assigned meaning, the command returns the
+value "Unassigned".  Several status codes are used only in response to the
+methods defined by HTTP extensions such as WebDAV, and not in response to a
+HEAD, GET, or POST request method.
+.PP
+.RS
+The "reason phrase" returned by a HTTP server may differ from the recommended
+value, without affecting the HTTP protocol.  The value returned by
+\fB::http::geturl\fR can be obtained by calling either command
+\fB::http::responseLine\fR (which returns the full status line) or command
+\fB::http::responseInfo\fR (which returns a dictionary, with
+the "reason phrase" stored in key \fIreasonPhrase\fR).
+.PP
+A registry of valid status codes is maintained at
+https://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
+.RE
+.\" COMMAND: responseHeaders
+.TP
+\fB::http::responseHeaders\fI token\fR ?\fIheaderName\fR?
+.
+The response from a HTTP server includes metadata headers that describe the
+response body and the transaction itself.
+This command returns the HTTP response header names and values, in the
+order that they were received from the server, as a Tcl list of the form
+?name value ...?  Header names are case-insensitive and are converted to lower
+case.  The return value is not a \fBdict\fR because some header names may occur
+more than once, notably \fBSet-Cookie\fR.  If the second argument is not
+supplied, all response headers are returned.  If the second argument is
+supplied, it provides the value of a header name.  Only headers with the
+requested name (converted to lower case) are returned.  If no such headers
+are found, an empty list is returned.  See section \fBMETADATA\fR for more
+information.
+.\" COMMAND: responseHeaderValue
+.TP
+\fB::http::responseHeaderValue\fI token headerName\fR
+.
+This command returns the value of the HTTP response header named
+\fIheaderName\fR.  Header names are case-insensitive and are converted to
+lower case.  If no such header exists, the return value is the empty string.
+If there are multiple headers named \fIheaderName\fR, the result is obtained
+by joining the individual values with the string ", " (comma and space),
+preserving their order.  Multiple headers with the same name may be processed
+in this manner, except \fBSet-Cookie\fR which does not conform to the
+comma-separated-list syntax and cannot be combined into a single value.
+Each \fBSet-Cookie\fR header must be treated individually, e.g. by processing
+the return value of \fB::http::responseHeaders\fI token\fR \fBSet-Cookie\fR.
+.\" COMMAND: responseInfo
+.TP
+\fB::http::responseInfo\fI token\fR
+.
+This command returns a \fBdict\fR of selected response metadata that are
+essential for identifying a successful transaction and making use of the
+response, along with other metadata that are informational.  The keys of
+the \fBdict\fR are \fIstage\fR, \fIstatus\fR, \fIresponseCode\fR,
+\fIreasonPhrase\fR, \fIcontentType\fR, \fIbinary\fR, \fIredirection\fR,
+\fIupgrade\fR, \fIerror\fR, \fIpostError\fR, \fImethod\fR, \fIcharset\fR,
+\fIcompression\fR, \fIhttpRequest\fR, \fIhttpResponse\fR, \fIurl\fR,
+\fIconnectionRequest\fR, \fIconnectionResponse\fR, \fIconnectionActual\fR,
+\fItransferEncoding\fR, \fItotalPost\fR, \fIcurrentPost\fR, \fItotalSize\fR,
+and \fIcurrentSize\fR.  The meaning of these keys is described in the
+section \fBMETADATA\fR below.
+.RS
+.PP
+It is always worth checking the value of \fIbinary\fR after a HTTP transaction,
+to determine whether a misconfigured server has caused http to interpret a
+text resource as a binary, or vice versa.
+.PP
+After a POST transaction, check the value of \fIpostError\fR to verify that
+the request body was uploaded without error.
+.RE
+.\" COMMAND: responseBody
+.TP
+\fB::http::responseBody\fI token\fR
+.
+This command returns the entity sent by the HTTP server (unless
+\fI-channel\fR was used, in which case the entity was delivered to the
+channel, and the command returns the empty string).
+.RS
+.PP
+Other terms for
+"entity", with varying precision, include "representation of resource",
+"resource", "response body after decoding", "payload",
+"message body after decoding", "content(s)", and "file".
+.RE
+.\" COMMAND: register
+.TP
+\fB::http::register\fI proto port command\fR ?\fIsocketCmdVarName\fR? ?\fIuseSockThread\fR? ?\fIendToEndProxy\fR?
+.
 This procedure allows one to provide custom HTTP transport types
 such as HTTPS, by registering a prefix, the default port, and the
-command to execute to create the Tcl \fBchannel\fR. E.g.:
+command to execute to create the Tcl \fBchannel\fR. The optional
+arguments configure how \fBhttp\fR uses the custom transport, and have
+default values that are compatible with older versions of \fBhttp\fR
+in which \fB::http::register\fR has no optional arguments.
+.RS
+.PP
+Argument \fIsocketCmdVarName\fR is the name of a variable provided by
+the transport, whose value is the command used by the transport to open
+a socket.  Its default value is set by the transport and is "::socket",
+but if the name of the variable is supplied to \fB::http::register\fR,
+then \fBhttp\fR will set a new value in order to make optional
+facilities available.  These facilities are enabled by the optional
+arguments \fIuseSockThread\fR, \fIendToEndProxy\fR, which take boolean
+values with default value \fIfalse\fR.
+.PP
+Iff argument \fIuseSockThread\fR is supplied and is boolean \fItrue\fR,
+then iff permitted by the value [\fBhttp::config\fI \-threadlevel\fR]
+and by the availability of package \fBThread\fR, sockets created for
+the transport will be opened in a different thread so that a slow DNS
+lookup will not cause the script to block.
+.PP
+Iff argument \fIendToEndProxy\fR is supplied and is boolean \fItrue\fR,
+then when \fBhttp::geturl\fR accesses a server via a proxy, it will
+open a channel by sending a CONNECT request to the proxy, and it will
+then make its request over this channel.  This allows end-to-end
+encryption for HTTPS requests made through a proxy.
+.PP
+For example,
 .RS
+.PP
 .CS
 package require http
 package require tls
 
-::http::register https 443 ::tls::socket
+::http::register https 443 ::tls::socket ::tls::socketCmd 1 1
 
 set token [::http::geturl https://my.secure.site/]
 .CE
 .RE
+.RE
+.\" COMMAND: registerError
+.TP
+\fB::http::registerError\fI sock\fR ?\fImessage\fR?
+.
+This procedure allows a registered protocol handler to deliver an error
+message for use by \fBhttp\fR.  Calling this command does not raise an
+error. The command is useful when a registered protocol detects an problem
+(for example, an invalid TLS certificate) that will cause an error to
+propagate to \fBhttp\fR.  The command allows \fBhttp\fR to provide a
+precise error message rather than a general one.  The command returns the
+value provided by the last call with argument \fImessage\fR, or the empty
+string if no such call has been made.
+.\" COMMAND: unregister
 .TP
-\fB::http::unregister\fR \fIproto\fR
+\fB::http::unregister\fI proto\fR
+.
 This procedure unregisters a protocol handler that was previously
-registered via \fB::http::register\fR, returning a two-item list of
-the default port and handler command that was previously installed
-(via \fB::http::register\fR) if there was such a handler, and an error if
-there was no such handler.
+registered via \fB::http::register\fR, returning a six-item list of
+the values that were previously supplied to \fB::http::register\fR
+if there was such a handler, and an error if there was no such handler.
+.\" COMMAND: code
+.TP
+\fB::http::code\fI token\fR
+.
+An alternative name for the command \fB::http::responseLine\fR
+.\" COMMAND: data
+.TP
+\fB::http::data\fI token\fR
+.
+An alternative name for the command \fB::http::responseBody\fR.
+.\" COMMAND: meta
+.TP
+\fB::http::meta\fI token\fR ?\fIheaderName\fR?
+.
+An alternative name for the command \fB::http::responseHeaders\fR
+.\" COMMAND: ncode
+.TP
+\fB::http::ncode\fI token\fR
+.
+An alternative name for the command \fB::http::responseCode\fR
 .SH ERRORS
 The \fB::http::geturl\fR procedure will raise errors in the following cases:
 invalid command line options,
-an invalid URL,
-a URL on a non-existent host,
-or a URL at a bad port on an existing host.
+or an invalid URL.
 These errors mean that it
 cannot even start the network transaction.
-It will also raise an error if it gets an I/O error while
-writing out the HTTP request header.
 For synchronous \fB::http::geturl\fR calls (where \fB\-command\fR is
-not specified), it will raise an error if it gets an I/O error while
+not specified), it will raise an error if
+the URL is on a non-existent host
+or at a bad port on an existing host.
+It will also raise an error for any I/O errors while
+writing out the HTTP request line and headers, or
 reading the HTTP reply headers or data.  Because \fB::http::geturl\fR
 does not return a token in these cases, it does all the required
 cleanup and there is no issue of your app having to call
@@ -396,176 +927,671 @@ HTTP reply headers or data, no exception is thrown.  This is because
 after writing the HTTP headers, \fB::http::geturl\fR returns, and the
 rest of the HTTP transaction occurs in the background.  The command
 callback can check if any error occurred during the read by calling
-\fB::http::status\fR to check the status and if its \fIerror\fR,
-calling \fB::http::error\fR to get the error message.
+\fB::http::responseInfo\fR to check the transaction status.
 .PP
 Alternatively, if the main program flow reaches a point where it needs
 to know the result of the asynchronous HTTP request, it can call
 \fB::http::wait\fR and then check status and error, just as the
-callback does.
+synchronous call does.
+.PP
+The \fB::http::geturl\fR command runs the \fB\-command\fR, \fB\-handler\fR,
+and \fB\-proxyfilter\fR callbacks inside a \fBcatch\fR command.  Therefore
+an error in the callback command does not call the \fBbgerror\fR handler.
+When debugging one of these
+callbacks, it may be convenient to report errors by using a
+\fBcatch\fR command within the callback command itself, e.g. to write
+an error message to stdout.
 .PP
 In any case, you must still call
 \fB::http::cleanup\fR to delete the state array when you are done.
 .PP
 There are other possible results of the HTTP transaction
-determined by examining the status from \fB::http::status\fR.
+determined by examining the status from \fB::http::status\fR (or the value
+of the \fIstatus\fR key in the dictionary returned
+by \fB::http::responseInfo\fR).
 These are described below.
-.TP
-ok
+.IP \fBok\fR
 If the HTTP transaction completes entirely, then status will be \fBok\fR.
-However, you should still check the \fB::http::code\fR value to get
-the HTTP status.  The \fB::http::ncode\fR procedure provides just
-the numeric error (e.g., 200, 404 or 500) while the \fB::http::code\fR
+However, you should still check the \fB::http::responseLine\fR value to get
+the HTTP status.  The \fB::http::responseCode\fR procedure provides just
+the numeric error (e.g., 200, 404 or 500) while the \fB::http::responseLine\fR
 procedure returns a value like
 .QW "HTTP 404 File not found" .
-.TP
-eof
+.IP \fBeof\fR
 If the server closes the socket without replying, then no error
 is raised, but the status of the transaction will be \fBeof\fR.
-.TP
-error
-The error message will also be stored in the \fBerror\fR status
-array element, accessible via \fB::http::error\fR.
-.PP
-Another error possibility is that \fB::http::geturl\fR is unable to
-write all the post query data to the server before the server
-responds and closes the socket.
-The error message is saved in the \fBposterror\fR status array
-element and then  \fB::http::geturl\fR attempts to complete the
-transaction.
-If it can read the server's response
-it will end up with an \fBok\fR status, otherwise it will have
-an \fBeof\fR status.
+.IP \fBerror\fR
+The error message, stack trace, and error code are accessible
+via \fB::http::error\fR.  The error message is also provided by the value of
+the \fIerror\fR key in the dictionary returned by \fB::http::responseInfo\fR.
+.IP \fBtimeout\fR
+A timeout occurred before the transaction could complete.
+.IP \fBreset\fR
+The user has called \fB::http::reset\fR.
+.IP \fB""\fR
+(empty string) The transaction has not yet finished.
+.PP
+Another error possibility is that \fB::http::geturl\fR failed to
+write the whole of the POST request body (\fB\-query\fR or \fB\-querychannel\fR
+data) to the server.  \fB::http::geturl\fR stores the error message for later
+retrieval by the \fB::http::postError\fR or \fB::http::responseInfo\fR
+commands, and then attempts to complete the transaction.
+If it can read the server's response the status will be \fBok\fR, but it is
+important to call \fB::http::postError\fR or \fB::http::responseInfo\fR after
+every POST to check that the data was sent in full.
+If the server has closed the connection the status will be \fBeof\fR.
+.SH "METADATA"
+.PP
+.SS "MOST USEFUL METADATA"
+When a HTTP server responds to a request, it supplies not only the entity
+requested, but also metadata.  This is provided by the first line (the
+"status line") of the response, and by a number of HTTP headers.  Further
+metadata relates to how \fB::http::geturl\fR has processed the response
+from the server.
+.PP
+The most important metadata can be accessed with the command
+\fB::http::responseInfo\fR.
+This command returns a \fBdict\fR of metadata that are essential for
+identifying a successful transaction and making use of the response,
+along with other metadata that are informational.  The keys of
+the \fBdict\fR are:
+.PP
+.RS
+.RS
+.\" TODO: Find a better way to mark this up!
+\fB===== Essential Values =====\fR
+.RE
+.RE
+.IP \fBstage\fR
+This value, set by \fB::http::geturl\fR, describes the stage that the
+transaction has reached. Values, in order of the transaction lifecycle,
+are: "created", "connecting", "header", "body", and "complete".  The
+other \fBdict\fR keys will not be available until the value of \fBstage\fR
+is "body" or "complete".  The key \fBcurrentSize\fR has its final value only
+when \fBstage\fR is "complete".
+.IP \fBstatus\fR
+This value, set by \fB::http::geturl\fR, is "ok" for a successful transaction;
+"eof", "error", "timeout", or "reset" for an unsuccessful transaction; or ""
+if the transaction is still in progress.  The value is the same as that
+returned by command \fB::http::status\fR. The meaning of these values is
+described in the section \fBERRORS\fR (above).
+.IP \fBresponseCode\fR
+The "HTTP status code" sent by the server in the first line (the "status line")
+of the response.  If the value cannot be extracted from the status line, the
+full status line is returned.
+.IP \fBreasonPhrase\fR
+The "reason phrase" sent by the server as a description of the HTTP status code.
+If the value cannot be extracted from the status line, the full status
+line is returned.
+.IP \fBcontentType\fR
+The value of the \fBContent-Type\fR response header or, if the header was not
+supplied, the default value "application/octet-stream".
+.IP \fBbinary\fR
+This boolean value, set by \fB::http::geturl\fR, describes how the command
+has interpreted the entity returned by the server (after decoding any
+compression specified by the \fBContent-Encoding\fR response header).
+This decoded entity is accessible as the return value of the
+command \fB::http::responseBody\fR.
+.PP
+.RS
+The value is \fBtrue\fR if http has interpreted the decoded entity as binary.
+The value returned by \fB::http::responseBody\fR is a Tcl binary string.
+This is a suitable format for image data, zip files, etc.
+\fB::http::geturl\fR chooses this value if the user has requested a binary
+interpretation by passing the option \fB\-binary\fR to the command, or if the
+server has supplied a binary content type in a \fBContent-Type\fR response
+header, or if the server has not supplied any \fBContent-Type\fR header.
+.PP
+The value is \fBfalse\fR in other cases, and this means that http has
+interpreted the decoded entity as text. The text has been converted, from the
+character set notified by the server, into Tcl's internal Unicode format;
+the value returned by \fB::http::responseBody\fR is an ordinary Tcl string.
+.PP
+It is always worth checking the value of "binary" after a HTTP transaction,
+to determine whether a misconfigured server has caused http to interpret a
+text resource as a binary, or vice versa.
+.RE
+.IP \fBredirection\fR
+The URL that is the redirection target. The value is that of the \fBLocation\fR
+response header.  This header is sent when a response has status code
+3XX (redirection).
+.IP \fBupgrade\fR
+If not empty, the value indicates the protocol(s) to which the server will
+switch after completion of this transaction, while continuing to use the
+same connection.  When the server intends to switch protocols, it will also
+send the value "101" as the status code (the \fBresponseCode\fR key), and the
+word "upgrade" as an element of the \fBConnection\fR response header (the
+\fBconnectionResponse\fR key), and it will not send a response body.
+See the section \fBPROTOCOL UPGRADES\fR for more information.
+.IP \fBerror\fR
+The error message, if there is one.  Further information, including a stack
+trace and error code, are available from command \fB::http::error\fR.
+.IP \fBpostError\fR
+The error message (if any) generated when a HTTP POST request sends its
+request-body to the server.  Further information, including a stack trace
+and error code, are available from command \fB::http::postError\fR.  A POST
+transaction may appear complete, according to the
+keys \fBstage\fR, \fBstatus\fR, and \fBresponseCode\fR, but it is important
+to check this \fBpostError\fR key in case an error occurred when uploading
+the request-body.
+.PP
+.RS
+.RS
+\fB===== Informational Values =====\fR
+.RE
+.RE
+.IP \fBmethod\fR
+The HTTP method used in the request.
+.IP \fBcharset\fR
+The value of the charset attribute of the \fBContent-Type\fR response header.
+The charset value is used only for a text resource.  If the server did not
+specify a charset, the value defaults to that of the
+variable \fB::http::defaultCharset\fR, which unless it has been deliberately
+modified by the caller is \fBiso8859-1\fR.  Incoming text data is automatically
+converted from the character set defined by \fBcharset\fR to Tcl's internal
+Unicode representation, i.e. to a Tcl string.
+.IP \fBcompression\fR
+A copy of the \fBContent-Encoding\fR response-header value.
+.IP \fBhttpRequest\fR
+The version of HTTP specified in the request (i.e. sent in the request line).
+The value is that of the option \fB\-protocol\fR supplied
+to \fB::http::geturl\fR (default value "1.1"), unless the command reduced the
+value to "1.0" because it was passed the \fB\-handler\fR option.
+.IP \fBhttpResponse\fR
+The version of HTTP used by the server (obtained from the response
+"status line").  The server uses this version of HTTP in its response, but
+ensures that this response is compatible with the HTTP version specified in the
+client's request.  If the value cannot be extracted from the status line, the
+full status line is returned.
+.IP \fBurl\fR
+The requested URL, typically the URL supplied as an argument
+to \fB::http::geturl\fR but without its "fragment" (the final part of the URL
+beginning with "#").
+.IP \fBconnectionRequest\fR
+The value, if any, sent to the server in \fBConnection\fR request header(s).
+.IP \fBconnectionResponse\fR
+The value, if any, received from the server in \fBConnection\fR response
+header(s).
+.IP \fBconnectionActual\fR
+This value, set by \fB::http::geturl\fR, reports whether the connection was
+closed after the transaction (value "close"), or left open (value "keep-alive").
+.IP \fBtransferEncoding\fR
+The value of the Transfer-Encoding response header, if it is present.
+The value is either "chunked" (indicating HTTP/1.1 "chunked encoding") or
+the empty string.
+.IP \fBtotalPost\fR
+The total length of the request body in a POST request.
+.IP \fBcurrentPost\fR
+The number of bytes of the POST request body sent to the server so far.
+The value is the same as that returned by command \fB::http::size\fR.
+.IP \fBtotalSize\fR
+A copy of the \fBContent-Length\fR response-header value.
+The number of bytes specified in a \fBContent-Length\fR header, if one
+was sent.  If none was sent, the value is 0.  A correctly configured server
+omits this header if the transfer-encoding is "chunked", or (for older
+servers) if the server closes the connection when it reaches the end of
+the resource.
+.IP \fBcurrentSize\fR
+The number of bytes fetched from the server so far.
+.PP
+.SS "MORE METADATA"
+The dictionary returned by \fB::http::responseInfo\fR is the most useful
+subset of the available metadata.  Other metadata include:
+.PP
+1. The full "status line" of the response, available as the return value
+of command \fB::http::responseLine\fR.
+.PP
+2. The full response headers, available as the return value of
+command \fB::http::responseHeaders\fR.  This return value is a list of the
+response-header names and values, in the order that they were received from
+the server.
+.PP
+The return value is not a \fBdict\fR because some header names may
+occur more than once, notably \fBSet-Cookie\fR. If the value is read
+into a \fBdict\fR or into an array (using array set), only the last header
+with each name will be preserved.
+.PP
+.RS
+Some of the header names (metadata keys) are listed below, but the HTTP
+standard defines several more, and servers are free to add their own.
+When a dictionary key is mentioned below, this refers to the \fBdict\fR
+value returned by command \fB::http::responseInfo\fR.
+.IP \fBContent-Type\fR
+The content type of the URL contents.  Examples include \fBtext/html\fR,
+\fBimage/gif,\fR \fBapplication/postscript\fR and
+\fBapplication/x-tcl\fR.  Text values typically specify a character set, e.g.
+\fBtext/html; charset=UTF-8\fR.  Dictionary key \fIcontentType\fR.
+.IP \fBContent-Length\fR
+The advertised size in bytes of the contents, available as dictionary
+key \fItotalSize\fR.  The actual number of bytes read by \fB::http::geturl\fR
+so far is available as dictionary key \fBcurrentSize\fR.
+.IP \fBContent-Encoding\fR
+The compression algorithm used for the contents.
+Examples include \fBgzip\fR, \fBdeflate\fR.
+Dictionary key \fIcontent\fR.
+.IP \fBLocation\fR
+This header is sent when a response has status code 3XX (redirection).
+It provides the URL that is the redirection target.
+Dictionary key \fIredirection\fR.
+.IP \fBSet-Cookie\fR
+This header is sent to offer a cookie to the client.  Cookie management is
+done by the \fB::http::config\fR option \fB\-cookiejar\fR, and so
+the \fBSet-Cookie\fR headers need not be parsed by user scripts.
+See section \fBCOOKIE JAR PROTOCOL\fR.
+.IP \fBConnection\fR
+The value can be supplied as a comma-separated list, or by multiple headers.
+The list often has only one element, either "close" or "keep-alive".
+The value "upgrade" indicates a successful upgrade request and is typically
+combined with the status code 101, an \fBUpgrade\fR response header, and no
+response body.  Dictionary key \fIconnectionResponse\fR.
+.IP \fBUpgrade\fR
+The value indicates the protocol(s) to which the server will switch
+immediately after the empty line that terminates the 101 response headers.
+Dictionary key \fIupgrade\fR.
+.RE
+.PP
+.SS "EVEN MORE METADATA"
+.IP 1.
+Details of the HTTP request.  The request is determined by the options
+supplied to \fB::http::geturl\fR and \fB::http::config\fR.  However, it is
+sometimes helpful to examine what \fB::http::geturl\fR actually sent to the
+server, and this information is available through
+commands \fB::http::requestHeaders\fR and \fB::http::requestLine\fR.
+.IP 2.
+The state array: the internal variables of \fB::http::geturl\fR.
+It may sometimes be helpful to examine this array.
+Details are given in the next section.
 .SH "STATE ARRAY"
-The \fB::http::geturl\fR procedure returns a \fItoken\fR that can be used to
-get to the state of the HTTP transaction in the form of a Tcl array.
-Use this construct to create an easy-to-use array variable:
+The \fB::http::geturl\fR procedure returns a \fItoken\fR that can be used
+as an argument to other \fB::http::*\fR commands, which examine and manage
+the state of the HTTP transaction.  For most purposes these commands are
+sufficient.  The \fItoken\fR can also be used to access
+the internal state of the transaction, which is stored in a Tcl array.
+This facility is most useful when writing callback commands for the
+options \fB\-command\fR, \fB\-handler\fR, \fB\-progress\fR,
+or \fB\-queryprogress\fR.
+Use the following command inside the proc to define an easy-to-use
+array \fIstate\fR as a local variable within the proc
+.PP
 .CS
-upvar #0 $token state
+upvar 0 $token state
 .CE
+.PP
 Once the data associated with the URL is no longer needed, the state
 array should be unset to free up storage.
 The \fB::http::cleanup\fR procedure is provided for that purpose.
-The following elements of
-the array are supported:
-.RS
-.TP
-\fBbody\fR
-The contents of the URL.  This will be empty if the \fB\-channel\fR
-option has been specified.  This value is returned by the \fB::http::data\fR command.
-.TP
-\fBcharset\fR
-The value of the charset attribute from the \fBContent-Type\fR meta-data
-value.  If none was specified, this defaults to the RFC standard
-\fBiso8859-1\fR, or the value of \fB$::http::defaultCharset\fR.  Incoming
-text data will be automatically converted from this charset to utf-8.
-.TP
-\fBcoding\fR
-A copy of the \fBContent-Encoding\fR meta-data value.
-.TP
-\fBcurrentsize\fR
-The current number of bytes fetched from the URL.
-This value is returned by the \fB::http::size\fR command.
-.TP
-\fBerror\fR
-If defined, this is the error string seen when the HTTP transaction
-was aborted.
-.TP
-\fBhttp\fR
-The HTTP status reply from the server.  This value
-is returned by the \fB::http::code\fR command.  The format of this value is:
+.PP
+The following elements of the array are supported, and are the origin of the
+values returned by commands as described below.  When a dictionary key is
+mentioned below, this refers to the \fBdict\fR value returned by
+command \fB::http::responseInfo\fR.
 .RS
-.CS
-\fIHTTP/1.1 code string\fR
-.CE
-The \fIcode\fR is a three-digit number defined in the HTTP standard.
-A code of 200 is OK.  Codes beginning with 4 or 5 indicate errors.
-Codes beginning with 3 are redirection errors.  In this case the
-\fBLocation\fR meta-data specifies a new URL that contains the
-requested information.
+.IP \fBbinary\fR
+For dictionary key \fIbinary\fR.
+.IP \fBbody\fR
+For command \fB::http::responseBody\fR.
+.IP \fBcharset\fR
+For dictionary key \fIcharset\fR.
+.IP \fBcoding\fR
+For dictionary key \fIcompression\fR.
+.IP \fBconnection\fR
+For dictionary key \fIconnectionActual\fR.
+.IP \fBcurrentsize\fR
+For command \fB::http::size\fR; and for dictionary key \fIcurrentSize\fR.
+.IP \fBerror\fR
+For command \fB::http::error\fR; part is used in dictionary key \fIerror\fR.
+.IP \fBhttp\fR
+For command \fB::http::responseLine\fR.
+.IP \fBhttpResponse\fR
+For dictionary key \fIhttpResponse\fR.
+.IP \fBmeta\fR
+For command \fB::http::responseHeaders\fR. Further discussion above in the
+section \fBMORE METADATA\fR.
+.IP \fBmethod\fR
+For dictionary key \fImethod\fR.
+.IP \fBposterror\fR
+For dictionary key \fIpostError\fR.
+.IP \fBpostErrorFull\fR
+For command \fB::http::postError\fR.
+.IP \fB\-protocol\fR
+For dictionary key \fIhttpRequest\fR.
+.IP \fBquerylength\fR
+For dictionary key \fItotalPost\fR.
+.IP \fBqueryoffset\fR
+For dictionary key \fIcurrentPost\fR.
+.IP \fBreasonPhrase\fR
+For dictionary key \fIreasonPhrase\fR.
+.IP \fBrequestHeaders\fR
+For command \fB::http::requestHeaders\fR.
+.IP \fBrequestLine\fR
+For command \fB::http::requestLine\fR.
+.IP \fBresponseCode\fR
+For dictionary key \fIresponseCode\fR.
+.IP \fBstate\fR
+For dictionary key \fIstage\fR.
+.IP \fBstatus\fR
+For command \fB::http::status\fR; and for dictionary key \fIstatus\fR.
+.IP \fBtotalsize\fR
+For dictionary key \fItotalSize\fR.
+.IP \fBtransfer\fR
+For dictionary key \fItransferEncoding\fR.
+.IP \fBtype\fR
+For dictionary key \fIcontentType\fR.
+.IP \fBupgrade\fR
+For dictionary key \fIupgrade\fR.
+.IP \fBurl\fR
+For dictionary key \fIurl\fR.
 .RE
+.SH "PERSISTENT CONNECTIONS"
+.PP
+.SS "BASICS"
+.PP
+See RFC 7230 Sec 6, which supersedes RFC 2616 Sec 8.1.
+.PP
+A persistent connection allows multiple HTTP/1.1 transactions to be
+carried over the same TCP connection.  Pipelining allows a
+client to make multiple requests over a persistent connection without
+waiting for each response.  The server sends responses in the same order
+that the requests were received.
+.PP
+If a POST request fails to complete, typically user confirmation is
+needed before sending the request again.  The user may wish to verify
+whether the server was modified by the failed POST request, before
+sending the same request again.
+.PP
+A HTTP request will use a persistent socket if the call to
+\fBhttp::geturl\fR has the option \fB\-keepalive true\fR. It will use
+pipelining where permitted if the \fBhttp::config\fR option
+\fB\-pipeline\fR is boolean \fBtrue\fR (its default value).
+.PP
+The http package maintains no more than one persistent connection to each
+server (i.e. each value of
+.QW "domain:port" ).
+If \fBhttp::geturl\fR is called to make a request over a persistent
+connection while the connection is busy with another request, the new
+request will be held in a queue until the connection is free.
+.PP
+The http package does not support HTTP/1.0 persistent connections
+controlled by the \fBKeep-Alive\fR header.
+.SS "SPECIAL CASES"
+.PP
+This subsection discusses issues related to closure of the
+persistent connection by the server, automatic retry of failed requests,
+the special treatment necessary for POST requests, and the options for
+dealing with these cases.
+.PP
+In accordance with RFC 7230, \fBhttp::geturl\fR does not pipeline
+requests that use the POST method.  If a POST uses a persistent
+connection and is not the first request on that connection,
+\fBhttp::geturl\fR waits until it has received the response for the previous
+request; or (if \fBhttp::config\fR option \fB\-postfresh\fR is boolean
+\fBtrue\fR) it uses a new connection for each POST.
+.PP
+If the server is processing a number of pipelined requests, and sends a
+response header
+.QW "\fBConnection: close\fR"
+with one of the responses (other than the last), then subsequent responses
+are unfulfilled. \fBhttp::geturl\fR will send the unfulfilled requests again
+over a new connection.
+.PP
+A difficulty arises when a HTTP client sends a request over a persistent
+connection that has been idle for a while.  The HTTP server may
+half-close an apparently idle connection while the client is sending a
+request, but before the request arrives at the server: in this case (an
+.QW "asynchronous close event" )
+the request will fail.  The difficulty arises because the client cannot
+be certain whether the POST modified the state of the server.  For HEAD or
+GET requests, \fBhttp::geturl\fR opens another connection and retransmits
+the failed request. However, if the request was a POST, RFC 7230 forbids
+automatic retry by default, suggesting either user confirmation, or
+confirmation by user-agent software that has semantic understanding of
+the application.  The \fBhttp::config\fR option \fB\-repost\fR allows for
+either possibility.
+.PP
+Asynchronous close events can occur only in a short interval of time.  The
+\fBhttp\fR package monitors each persistent connection for closure by the
+server.  Upon detection, the connection is also closed at the client end,
+and subsequent requests will use a fresh connection.
+.PP
+If the \fBhttp::geturl\fR command is called with option \fB\-keepalive true\fR,
+then it will both try to use an existing persistent connection
+(if one is available), and it will send the server a
+.QW "\fBConnection: keep-alive\fR"
+request header asking to keep the connection open for future requests.
+.PP
+The \fBhttp::config\fR options \fB\-pipeline\fR, \fB\-postfresh\fR, and
+\fB\-repost\fR relate to persistent connections.
+.PP
+Option \fB\-pipeline\fR, if boolean \fBtrue\fR, will pipeline GET and HEAD
+requests made over a persistent connection.  POST requests will not be
+pipelined - if the
+POST is not the first transaction on the connection, its request will not
+be sent until the previous response has finished.  GET and HEAD requests
+made after a POST will not be sent until the POST response has been
+delivered, and will not be sent if the POST fails.
+.PP
+Option \fB\-postfresh\fR, if boolean \fBtrue\fR, will override the
+\fBhttp::geturl\fR option \fB\-keepalive\fR, and always open a fresh connection
+for a POST request.
+.PP
+Option \fB\-repost\fR, if \fBtrue\fR, permits automatic retry of a POST request
+that fails because it uses a persistent connection that the server has
+half-closed (an
+.QW "asynchronous close event" ).
+Subsequent GET and HEAD requests in a failed pipeline will also be retried.
+\fIThe \fB\-repost\fI option should be used only if the application understands
+that the retry is appropriate\fR - specifically, the application must know
+that if the failed POST successfully modified the state of the server, a repeat
+POST would have no adverse effect.
+.VS TIP406
+.SH "COOKIE JAR PROTOCOL"
+.PP
+Cookies are short key-value pairs used to implement sessions within the
+otherwise-stateless HTTP protocol. (See RFC 6265 for details; Tcl does not
+implement the Cookie2 protocol as that is rarely seen in the wild.)
+.PP
+Cookie storage management commands \(em
+.QW "cookie jars"
+\(em must support these subcommands which form the HTTP cookie storage
+management protocol. Note that \fIcookieJar\fR below does not have to be a
+command name; it is properly a command prefix (a Tcl list of words that will
+be expanded in place) and admits many possible implementations.
+.PP
+Though not formally part of the protocol, it is expected that particular
+values of \fIcookieJar\fR will correspond to sessions; it is up to the caller
+of \fB::http::config\fR to decide what session applies and to manage the
+deletion of said sessions when they are no longer desired (which should be
+when they not configured as the current cookie jar).
+.\" METHOD: getCookies
 .TP
-\fBmeta\fR
-The HTTP protocol returns meta-data that describes the URL contents.
-The \fBmeta\fR element of the state array is a list of the keys and
-values of the meta-data.  This is in a format useful for initializing
-an array that just contains the meta-data:
+\fIcookieJar \fBgetCookies \fIprotocol host requestPath\fR
+.
+This command asks the cookie jar what cookies should be supplied for a
+particular request. It should take the \fIprotocol\fR (typically \fBhttp\fR or
+\fBhttps\fR), \fIhost\fR name and \fIrequestPath\fR (parsed from the \fIurl\fR
+argument to \fB::http::geturl\fR) and return a list of cookie keys and values
+that describe the cookies to supply to the remote host. The list must have an
+even number of elements.
 .RS
-.CS
-array set meta $state(meta)
-.CE
-Some of the meta-data keys are listed below, but the HTTP standard defines
-more, and servers are free to add their own.
-.TP
-\fBContent-Type\fR
-The type of the URL contents.  Examples include \fBtext/html\fR,
-\fBimage/gif,\fR \fBapplication/postscript\fR and
-\fBapplication/x-tcl\fR.
-.TP
-\fBContent-Length\fR
-The advertised size of the contents.  The actual size obtained by
-\fB::http::geturl\fR is available as \fBstate(size)\fR.
-.TP
-\fBLocation\fR
-An alternate URL that contains the requested data.
+.PP
+There should only ever be at most one cookie with a particular key for any
+request (typically the one with the most specific \fIhost\fR/domain match and
+most specific \fIrequestPath\fR/path match), but there may be many cookies
+with different names in any request.
 .RE
+.\" METHOD: storeCookie
 .TP
-\fBposterror\fR
-The error, if any, that occurred while writing
-the post query data to the server.
-.TP
-\fBstatus\fR
-Either \fBok\fR, for successful completion, \fBreset\fR for
-user-reset, \fBtimeout\fR if a timeout occurred before the transaction
-could complete, or \fBerror\fR for an error condition.  During the
-transaction this value is the empty string.
-.TP
-\fBtotalsize\fR
-A copy of the \fBContent-Length\fR meta-data value.
-.TP
-\fBtype\fR
-A copy of the \fBContent-Type\fR meta-data value.
-.TP
-\fBurl\fR
-The requested URL.
+\fIcookieJar \fBstoreCookie \fIcookieDictionary\fR
+.
+This command asks the cookie jar to store a particular cookie that was
+returned by a request; the result of this command is ignored. The cookie
+(which will have been parsed by the http package) is described by a
+dictionary, \fIcookieDictionary\fR, that may have the following keys:
+.RS
+.IP \fBdomain\fR
+This is always present. Its value describes the domain hostname \fIor
+prefix\fR that the cookie should be returned for.  The checking of the domain
+against the origin (below) should be careful since sites that issue cookies
+should only do so for domains related to themselves. Cookies that do not obey
+a relevant origin matching rule should be ignored.
+.IP \fBexpires\fR
+This is optional. If present, the cookie is intended to be a persistent cookie
+and the value of the option is the Tcl timestamp (in seconds from the same
+base as \fBclock seconds\fR) of when the cookie expires (which may be in the
+past, which should result in the cookie being deleted immediately). If absent,
+the cookie is intended to be a session cookie that should be not persisted
+beyond the lifetime of the cookie jar.
+.IP \fBhostonly\fR
+This is always present. Its value is a boolean that describes whether the
+cookie is a single host cookie (true) or a domain-level cookie (false).
+.IP \fBhttponly\fR
+This is always present. Its value is a boolean that is true when the site
+wishes the cookie to only ever be used with HTTP (or HTTPS) traffic.
+.IP \fBkey\fR
+This is always present. Its value is the \fIkey\fR of the cookie, which is
+part of the information that must be return when sending this cookie back in a
+future request.
+.IP \fBorigin\fR
+This is always present. Its value describes where the http package believes it
+received the cookie from, which may be useful for checking whether the
+cookie's domain is valid.
+.IP \fBpath\fR
+This is always present. Its value describes the path prefix of requests to the
+cookie domain where the cookie should be returned.
+.IP \fBsecure\fR
+This is always present. Its value is a boolean that is true when the cookie
+should only used on requests sent over secure channels (typically HTTPS).
+.IP \fBvalue\fR
+This is always present. Its value is the value of the cookie, which is part of
+the information that must be return when sending this cookie back in a future
+request.
+.PP
+Other keys may always be ignored; they have no meaning in this protocol.
 .RE
+.VE TIP406
+.SH "PROTOCOL UPGRADES"
+.PP
+The HTTP/1.1 \fBConnection\fR and \fBUpgrade\fR request headers inform the
+server that the client wishes to change the protocol used over the existing
+connection (RFC 7230).
+This mechanism can be used to request a WebSocket (RFC 6455), a
+higher version of the HTTP protocol (HTTP 2), or TLS encryption.  If the
+server accepts the upgrade request, its response code will be 101.
+.PP
+To request a protocol upgrade when calling \fBhttp::geturl\fR,
+the \fB\-headers\fR option must supply appropriate values for \fBConnection\fR
+and \fBUpgrade\fR, and
+the \fB\-command\fR option must supply a command that implements the requested
+protocol and can also handle the server response if the server refuses the
+protocol upgrade.  For upgrade requests \fBhttp::geturl\fR ignores the value of
+option \fB\-keepalive\fR, and always uses the value \fB0\fR so that the upgrade
+request is not made over a connection that is intended for multiple HTTP
+requests.
+.PP
+The Tcllib library \fBwebsocket\fR implements WebSockets, and makes the
+necessary calls to commands in the \fBhttp\fR package.
+.PP
+There is currently no native Tcl client library for HTTP/2.
+.PP
+The \fBUpgrade\fR mechanism is not used to request TLS in web browsers, because
+\fBhttp\fR and \fBhttps\fR are served over different ports.  It is used by
+protocols such as Internet Printing Protocol (IPP) that are built on top of
+\fBhttp(s)\fR and use the same TCP port number for both secure and insecure
+traffic.
+.PP
+In browsers, opportunistic encryption is instead implemented by the
+\fBUpgrade-Insecure-Requests\fR client header.  If a secure service is
+available, the server response code is a 307 redirect, and the response header
+\fBLocation\fR specifies the target URL.  The browser must
+call \fBhttp::geturl\fR again in order to fetch this URL.
+See https://w3c.github.io/webappsec-upgrade-insecure-requests/
+.PP
+.SH THREADS
+.PP
+.SS "PURPOSE"
+.PP
+Command \fB::http::geturl\fR uses the Tcl \fB::socket\fR command with
+the \fB\-async\fR option to connect to a remote server, but the return from
+this command can be delayed in adverse cases (e.g. a slow DNS lookup),
+preventing the event loop from processing other events.
+This delay is avoided if the \fB::socket\fR command is evaluated in another
+thread.  The Thread package is not part of Tcl but is provided in
+"Batteries Included" distributions.  Instead of the \fB::socket\fR command,
+the http package uses \fB::http::socket\fR which makes connections in the
+manner specified by the value of \fB\-threadlevel\fR and the availability
+of package Thread.
+.PP
+.SS "WITH TLS (HTTPS)"
+.PP
+The same \fB\-threadlevel\fR configuration applies to both HTTP and HTTPS
+connections.
+HTTPS is enabled by using the \fBhttp::register\fR command, typically by
+specifying the \fB::tls::socket\fR command of the tls package to handle TLS
+cryptography.  The \fB::tls::socket\fR command connects to the remote server by
+using the command specified by the value of variable \fB::tls::socketCmd\fR, and
+this value defaults to "::socket".  If http::geturl finds
+that \fB::tls::socketCmd\fR has this value, it replaces it with the value
+"::http::socket".  If \fB::tls::socketCmd\fR has a value other than "::socket",
+i.e. if the script or the Tcl installation has replaced the value "::socket"
+with the name of a different command, then http does not change the value.
+The script or installation that modified \fB::tls::socketCmd\fR is responsible
+for integrating \fB::http::socket\fR into its own replacement command.
+.PP
+.SS "WITH A CHILD INTERPRETER"
+.PP
+The peer thread can transfer the socket only to the main interpreter of the
+script's thread.  Therefore the thread-based \fB::http::socket\fR works with
+non-zero \fB\-threadlevel\fR values only if the script runs in the main
+interpreter.  A child interpreter must use \fB\-threadlevel 0\fR unless the
+parent interpreter has provided alternative facilities.  The main parent
+interpreter may grant full \fB\-threadlevel\fR facilities to a child
+interpreter, for example by aliasing, to \fB::http::socket\fR in the child,
+a command that runs \fBhttp::socket\fR in the parent, and then transfers
+the socket to the child.
+.PP
 .SH EXAMPLE
+.PP
+This example creates a procedure to copy a URL to a file while printing a
+progress meter, and prints the response headers associated with the URL.
+.PP
 .CS
-# Copy a URL to a file and print meta-data
 proc httpcopy { url file {chunk 4096} } {
-   set out [open $file w]
-   set token [\fB::http::geturl\fR $url -channel $out \e
-          -progress httpCopyProgress -blocksize $chunk]
-   close $out
+    set out [open $file w]
+    set token [\fB::http::geturl\fR $url -channel $out \e
+            -progress httpCopyProgress -blocksize $chunk]
+    close $out
 
-   # This ends the line started by httpCopyProgress
-   puts stderr ""
+    # This ends the line started by httpCopyProgress
+    puts stderr ""
 
-   upvar #0 $token state
-   set max 0
-   foreach {name value} $state(meta) {
-      if {[string length $name] > $max} {
-         set max [string length $name]
-      }
-      if {[regexp -nocase ^location$ $name]} {
-         # Handle URL redirects
-         puts stderr "Location:$value"
-         return [httpcopy [string trim $value] $file $chunk]
-      }
-   }
-   incr max
-   foreach {name value} $state(meta) {
-      puts [format "%-*s %s" $max $name: $value]
-   }
+    upvar 0 $token state
+    set max 0
+    foreach {name value} $state(meta) {
+        if {[string length $name] > $max} {
+            set max [string length $name]
+        }
+        if {[regexp -nocase ^location$ $name]} {
+            # Handle URL redirects
+            puts stderr "Location:$value"
+            return [httpcopy [string trim $value] $file $chunk]
+        }
+    }
+    incr max
+    foreach {name value} $state(meta) {
+        puts [format "%-*s %s" $max $name: $value]
+    }
 
-   return $token
+    return $token
 }
 proc httpCopyProgress {args} {
-   puts -nonewline stderr .
-   flush stderr
+    puts -nonewline stderr .
+    flush stderr
 }
 .CE
 .SH "SEE ALSO"
 safe(n), socket(n), safesock(n)
 .SH KEYWORDS
-security policy, socket
+internet, security policy, socket, www
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/idna.n b/doc/idna.n
new file mode 100644
index 0000000..5f31558
--- /dev/null
+++ b/doc/idna.n
@@ -0,0 +1,93 @@
+'\"
+'\" Copyright (c) 2014-2018 Donal K. Fellows.
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH "idna" n 0.1 http "Tcl Bundled Packages"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+tcl::idna \- Support for normalization of Internationalized Domain Names
+.SH SYNOPSIS
+.nf
+package require tcl::idna 1.0
+
+\fBtcl::idna decode\fI hostname\fR
+\fBtcl::idna encode\fI hostname\fR
+\fBtcl::idna puny decode\fI string\fR ?\fIcase\fR?
+\fBtcl::idna puny encode\fI string\fR ?\fIcase\fR?
+\fBtcl::idna version\fR
+.fi
+.BE
+.SH DESCRIPTION
+This package provides an implementation of the punycode scheme used in
+Internationalised Domain Names, and some access commands. (See RFC 3492 for a
+description of punycode.)
+.\" METHOD: decode
+.TP
+\fBtcl::idna decode\fI hostname\fR
+.
+This command takes the name of a host that potentially contains
+punycode-encoded character sequences, \fIhostname\fR, and returns the hostname
+as might be displayed to the user. Note that there are often UNICODE
+characters that have extremely similar glyphs, so care should be taken with
+displaying hostnames to users.
+.\" METHOD: encode
+.TP
+\fBtcl::idna encode\fI hostname\fR
+.
+This command takes the name of a host as might be displayed to the user,
+\fIhostname\fR, and returns the version of the hostname with characters not
+permitted in basic hostnames encoded with punycode.
+.\" METHOD: puny
+.TP
+\fBtcl::idna puny\fI subcommand ...\fR
+.
+This command provides direct access to the basic punycode encoder and
+decoder. It supports two \fIsubcommand\fRs:
+.RS
+.TP
+\fBtcl::idna puny decode\fI string\fR ?\fIcase\fR?
+.
+This command decodes the punycode-encoded string, \fIstring\fR, and returns
+the result. If \fIcase\fR is provided, it is a boolean to make the case be
+folded to upper case (if \fIcase\fR is true) or lower case (if \fIcase\fR is
+false) during the decoding process; if omitted, no case transformation is
+applied.
+.TP
+\fBtcl::idna puny encode\fI string\fR ?\fIcase\fR?
+.
+This command encodes the string, \fIstring\fR, and returns the
+punycode-encoded version of the string. If \fIcase\fR is provided, it is a
+boolean to make the case be folded to upper case (if \fIcase\fR is true) or
+lower case (if \fIcase\fR is false) during the encoding process; if omitted,
+no case transformation is applied.
+.RE
+.\" METHOD: version
+.TP
+\fBtcl::idna version\fR
+.
+This returns the version of the \fBtcl::idna\fR package.
+.SH "EXAMPLE"
+.PP
+This is an example of how punycoding of a string works:
+.PP
+.CS
+package require tcl::idna
+
+puts [\fBtcl::idna puny encode\fR "abc\(->def"]
+#    prints: \fIabcdef-kn2c\fR
+puts [\fBtcl::idna puny decode\fR "abcdef-kn2c"]
+#    prints: \fIabc\(->def\fR
+.CE
+'\" TODO: show how it handles a real domain name
+.SH "SEE ALSO"
+http(n), cookiejar(n)
+.SH KEYWORDS
+internet, www
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/if.n b/doc/if.n
index 085d3fe..8ba1f8e 100644
--- a/doc/if.n
+++ b/doc/if.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH if n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,7 +14,6 @@ if \- Execute scripts conditionally
 .SH SYNOPSIS
 \fBif \fIexpr1 \fR?\fBthen\fR? \fIbody1 \fBelseif \fIexpr2 \fR?\fBthen\fR? \fIbody2\fR \fBelseif\fR ... ?\fBelse\fR? ?\fIbodyN\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 The \fIif\fR command evaluates \fIexpr1\fR as an expression (in the
@@ -38,43 +37,51 @@ The return value from the command is the result of the body script
 that was executed, or an empty string
 if none of the expressions was non-zero and there was no \fIbodyN\fR.
 .SH EXAMPLES
+.PP
 A simple conditional:
+.PP
 .CS
 \fBif\fR {$vbl == 1} { puts "vbl is one" }
 .CE
 .PP
 With an \fBelse\fR-clause:
+.PP
 .CS
 \fBif\fR {$vbl == 1} {
-   puts "vbl is one"
+    puts "vbl is one"
 } \fBelse\fR {
-   puts "vbl is not one"
+    puts "vbl is not one"
 }
 .CE
 .PP
 With an \fBelseif\fR-clause too:
+.PP
 .CS
 \fBif\fR {$vbl == 1} {
-   puts "vbl is one"
+    puts "vbl is one"
 } \fBelseif\fR {$vbl == 2} {
-   puts "vbl is two"
+    puts "vbl is two"
 } \fBelse\fR {
-   puts "vbl is not one or two"
+    puts "vbl is not one or two"
 }
 .CE
 .PP
 Remember, expressions can be multi-line, but in that case it can be a
 good idea to use the optional \fBthen\fR keyword for clarity:
+.PP
 .CS
 \fBif\fR {
-   $vbl == 1 || $vbl == 2 || $vbl == 3
+    $vbl == 1
+    || $vbl == 2
+    || $vbl == 3
 } \fBthen\fR {
-   puts "vbl is one, two or three"
+    puts "vbl is one, two or three"
 }
 .CE
-
 .SH "SEE ALSO"
 expr(n), for(n), foreach(n)
-
 .SH KEYWORDS
 boolean, conditional, else, false, if, true
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/incr.n b/doc/incr.n
index 46c80a1..f491903 100644
--- a/doc/incr.n
+++ b/doc/incr.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH incr n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,7 +14,6 @@ incr \- Increment the value of a variable
 .SH SYNOPSIS
 \fBincr \fIvarName \fR?\fIincrement\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 Increments the value stored in the variable whose name is \fIvarName\fR.
@@ -25,24 +24,31 @@ integer) is added to the value of variable \fIvarName\fR;  otherwise
 The new value is stored as a decimal string in variable \fIvarName\fR
 and also returned as result.
 .PP
-.VS 8.5
 Starting with the Tcl 8.5 release, the variable \fIvarName\fR passed
 to \fBincr\fR may be unset, and in that case, it will be set to
 the value \fIincrement\fR or to the default increment value of \fB1\fR.
-.VE 8.5
+.VS TIP508
+If \fIvarName\fR indicate an element that does not exist of an array that has
+a default value set, the sum of the default value and the \fIincrement\fR (or
+1) will be stored in the array element.
+.VE TIP508
 .SH EXAMPLES
+.PP
 Add one to the contents of the variable \fIx\fR:
+.PP
 .CS
 \fBincr\fR x
 .CE
 .PP
 Add 42 to the contents of the variable \fIx\fR:
+.PP
 .CS
 \fBincr\fR x 42
 .CE
 .PP
 Add the contents of the variable \fIy\fR to the contents of the
 variable \fIx\fR:
+.PP
 .CS
 \fBincr\fR x $y
 .CE
@@ -50,12 +56,15 @@ variable \fIx\fR:
 Add nothing at all to the variable \fIx\fR (often useful for checking
 whether an argument to a procedure is actually integral and generating
 an error if it is not):
+.PP
 .CS
 \fBincr\fR x 0
 .CE
-
 .SH "SEE ALSO"
-expr(n)
-
+expr(n), set(n)
 .SH KEYWORDS
 add, increment, variable, value
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/info.n b/doc/info.n
index 8008c57..13366d4 100644
--- a/doc/info.n
+++ b/doc/info.n
@@ -3,323 +3,815 @@
 '\" Copyright (c) 1994-1997 Sun Microsystems, Inc.
 '\" Copyright (c) 1993-1997 Bell Labs Innovations for Lucent Technologies
 '\" Copyright (c) 1998-2000 Ajuba Solutions
+'\" Copyright (c) 2007-2012 Donal K. Fellows
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH info n 8.4 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
-info \- Return information about the state of the Tcl interpreter
+info \- Information about the state of the Tcl interpreter
 .SH SYNOPSIS
 \fBinfo \fIoption \fR?\fIarg arg ...\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
-This command provides information about various internals of the Tcl
-interpreter.
-The legal \fIoption\fRs (which may be abbreviated) are:
+Available commands:
+.\" METHOD: args
 .TP
 \fBinfo args \fIprocname\fR
-Returns a list containing the names of the arguments to procedure
-\fIprocname\fR, in order.  \fIProcname\fR must be the name of a
-Tcl command procedure.
+.
+Returns the names of the parameters to the procedure named \fIprocname\fR.
+.\" METHOD: body
 .TP
 \fBinfo body \fIprocname\fR
-Returns the body of procedure \fIprocname\fR.  \fIProcname\fR must be
-the name of a Tcl command procedure.
+.
+Returns the body of the procedure named \fIprocname\fR.
+.\" METHOD: class
+.TP
+\fBinfo class\fI subcommand class\fR ?\fIarg ...\fR
+.
+Returns information about the class named \fIclass\fR.
+See \fBCLASS INTROSPECTION\fR below.
+.\" METHOD: cmdcount
 .TP
 \fBinfo cmdcount\fR
-Returns a count of the total number of commands that have been invoked
-in this interpreter.
+.
+Returns the total number of commands evaluated in this interpreter.
+.\" METHOD: cmdtype
+.TP
+\fBinfo cmdtype \fIcommandName\fR
+.VS TIP426
+Returns a the type of the command named \fIcommandName\fR.
+Built-in types are:
+.RS
+.IP \fBalias\fR
+\fIcommandName\fR was created by \fBinterp alias\fR.
+In a safe interpreter an alias is only visible if both the alias and the
+target are visible.
+.IP \fBcoroutine\fR
+\fIcommandName\fR was created by \fBcoroutine\fR.
+.IP \fBensemble\fR
+\fIcommandName\fR was created by \fBnamespace ensemble\fR.
+.IP \fBimport\fR
+\fIcommandName\fR was created by \fBnamespace import\fR.
+.IP \fBnative\fR
+\fIcommandName\fR was created by the \fBTcl_CreateObjCommand\fR
+interface directly without further registration of the type of command.
+.IP \fBobject\fR
+\fIcommandName\fR is the public command that represents an
+instance of \fBoo::object\fR or one of its subclasses.
+.IP \fBprivateObject\fR
+\fIcommandName\fR is the private command, \fBmy\fR by default,
+that represents an instance of \fBoo::object\fR or one of its subclasses.
+.IP \fBproc\fR
+\fIcommandName\fR was created by \fBproc\fR.
+.IP \fBinterp\fR
+\fIcommandName\fR was created by \fBinterp create\fR.
+.IP \fBzlibStream\fR
+\fIcommandName\fR was created by \fBzlib stream\fR.
+.RE
+.VE TIP426
+.\" METHOD: commands
 .TP
 \fBinfo commands \fR?\fIpattern\fR?
-If \fIpattern\fR is not specified,
-.\" Do not move this .VS above the .TP
-.VS 8.5
-returns a list of names of all the Tcl commands visible
-(i.e. executable without using a qualified name) to the current namespace,
-including both the built-in commands written in C and
-the command procedures defined using the \fBproc\fR command.
-If \fIpattern\fR is specified,
-only those names matching \fIpattern\fR are returned.
-Matching is determined using the same rules as for \fBstring match\fR.
-\fIpattern\fR can be a qualified name like \fBFoo::print*\fR.
-That is, it may specify a particular namespace
-using a sequence of namespace names separated by double colons (\fB::\fR),
-and may have pattern matching special characters
-at the end to specify a set of commands in that namespace.
-If \fIpattern\fR is a qualified name,
-the resulting list of command names has each one qualified with the name
-of the specified namespace, and only the commands defined in the named
-namespace are returned.
-.\" Technically, most of this hasn't changed; that's mostly just the
-.\" way it always worked. Hardly anyone knew that though.
-.VE 8.5
+.
+Returns the names of all commands visible in the current namespace.  If
+\fIpattern\fR is given, returns only those names that match according to
+\fBstring match\fR.  Only the last component of \fIpattern\fR is a pattern.
+Other components identify a namespace.  See \fBNAMESPACE RESOLUTION\fR in the
+\fBnamespace\fR(n) documentation.
+.\" METHOD: complete
 .TP
 \fBinfo complete \fIcommand\fR
-Returns 1 if \fIcommand\fR is a complete Tcl command in the sense of
-having no unclosed quotes, braces, brackets or array element names.
-If the command does not appear to be complete then 0 is returned.
-This command is typically used in line-oriented input environments
-to allow users to type in commands that span multiple lines;  if the
-command is not complete, the script can delay evaluating it until additional
-lines have been typed to complete the command.
-.TP
-\fBinfo default \fIprocname arg varname\fR
-\fIProcname\fR must be the name of a Tcl command procedure and \fIarg\fR
-must be the name of an argument to that procedure.  If \fIarg\fR
-does not have a default value then the command returns \fB0\fR.
-Otherwise it returns \fB1\fR and places the default value of \fIarg\fR
-into variable \fIvarname\fR.
+.
+Returns 1 if \fIcommand\fR is a complete command, and \fB0\fR otherwise.
+Typically used in line-oriented input environments
+to allow users to type in commands that span multiple lines.
+.\" METHOD: constant
+.TP
+\fBinfo constant \fIvarName\fR
+.VS TIP677
+Returns 1 if \fIvarName\fR is a constant variable (see \fBconst\fR) and 0
+otherwise.
+.VE TIP677
+.\" METHOD: consts
+.TP
+\fBinfo consts\fR ?\fIpattern\fR?
+.VS TIP677
+Returns the list of constant variables (see \fBconst\fR) in the current scope,
+or the list of constant variables matching \fIpattern\fR (if that is provided)
+in a manner similar to \fBinfo vars\fR.
+.VE TIP677
+.\" METHOD: coroutine
+.TP
+\fBinfo coroutine\fR
+.
+Returns the name of the current \fBcoroutine\fR, or the empty
+string if there is no current coroutine or the current coroutine
+has been deleted.
+.\" METHOD: default
+.TP
+\fBinfo default \fIprocname parameter varname\fR
+.
+If the parameter \fIparameter\fR for the procedure named \fIprocname\fR has a
+default value, stores that value in \fIvarname\fR and returns \fB1\fR.
+Otherwise, returns \fB0\fR.
+.\" METHOD: errorstack
+.TP
+\fBinfo errorstack \fR?\fIinterp\fR?
+.
+Returns a description of the active command at each level for the
+last error in the current interpreter, or in the interpreter named
+\fIinterp\fR if given.
+.RS
+.PP
+The description is a dictionary of tokens and parameters. Tokens are
+currently either \fBCALL\fR, \fBUP\fR, or \fBINNER\fR, but other values may be
+introduced in the future. \fBCALL\fR indicates a command call, and its
+parameter is the corresponding \fBinfo level\fR \fB0\fR. \fBUP\fR indicates a
+shift in variable frames generated by \fBuplevel\fR or similar, and applies to
+the previous \fBCALL\fR item. Its parameter is the level offset. \fBINNER\fR
+identifies the
+.QW "inner context" ,
+which is the innermost atomic command or bytecode instruction that raised the
+error, along with its arguments when available. While \fBCALL\fR and \fBUP\fR
+provide a trail of the call path, \fBINNER\fR provides details of the offending
+operation in the innermost procedure call, even to sub-expression
+granularity.
+.PP
+This information is also present in the \fB\-errorstack\fR entry of the
+options dictionary returned by 3-argument \fBcatch\fR; \fBinfo errorstack\fR
+is a convenient way of retrieving it for uncaught errors at top-level in an
+interactive \fBinterpreter\fR.
+.RE
+.\" METHOD: exists
 .TP
 \fBinfo exists \fIvarName\fR
-Returns \fB1\fR if the variable named \fIvarName\fR exists in the
-current context (either as a global or local variable) and has been
-defined by being given a value, returns \fB0\fR otherwise.
-.TP
-\fBinfo frame\fR ?\fInumber\fR?
-This command provides access to all frames on the stack, even those
-hidden from \fBinfo level\fR. If \fInumber\fR is not specified, this
-command returns a number giving the frame level of the command. This
-is 1 if the command is invoked at top-level. If \fInumber\fR is
-specified, then the result is a dictionary containing the location
-information for the command at the \fInumber\fRed level on the stack.
+.
+Returns \fB1\fR if a variable named \fIvarName\fR is visible and has been
+defined, and \fB0\fR otherwise.
+.\" METHOD: frame
+.TP
+\fBinfo frame\fR ?\fIdepth\fR?
+.
+Returns the depth of the call to \fBinfo frame\fR itself.  Otherwise, returns a
+dictionary describing the active command at the \fIdepth\fR, which counts all
+commands visible to \fBinfo level\fR, plus commands that don't create a new
+level, such as \fBeval\fR, \fBsource\fR, or \fIuplevel\fR. The frame depth is
+always greater than the current level.
 .RS
 .PP
-If \fInumber\fR is positive (> 0) then it selects a particular stack
-level (1 refers to the top-most active command, i.e., \fBinfo frame\fR
-itself, 2 to the command it was called from, and so on); otherwise it
-gives a level relative to the current command (0 refers to the current
-command, i.e., \fBinfo frame\fR itself, -1 to its caller, and so on).
+If \fIdepth\fR is greater than \fB0\fR it is the frame at that depth.  Otherwise
+it is the number of frames up from the current frame.
 .PP
-This is similar to how \fBinfo level\fR works, except that this
-subcommand reports all frames, like \fBsource\fRd scripts,
-\fBeval\fRs, \fBuplevel\fRs, etc.
-.PP
-Note that for nested commands, like
+As with \fBinfo level\fR and error traces, for nested commands like
 .QW "foo [bar [x]]" ,
 only
 .QW x
-will be seen by an \fBinfo frame\fR invoked within
+is seen by \fBinfo frame\fR invoked within
 .QW x .
-This is the same as for \fBinfo level\fR and error stack traces.
 .PP
-The result dictionary may contain the keys listed below, with the
-specified meanings for their values:
-.TP
-\fBtype\fR
-This entry is always present and describes the nature of the location
-for the command. The recognized values are \fBsource\fR, \fBproc\fR,
+The dictionary may contain the following keys:
+.IP \fBtype\fR
+Always present.  Possible values are \fBsource\fR, \fBproc\fR,
 \fBeval\fR, and \fBprecompiled\fR.
 .RS
-.TP
-\fBsource\fR\0\0\0\0\0\0\0\0
-means that the command is found in a script loaded by the \fBsource\fR
-command.
-.TP
-\fBproc\fR\0\0\0\0\0\0\0\0
-means that the command is found in dynamically created procedure body.
-.TP
-\fBeval\fR\0\0\0\0\0\0\0\0
-means that the command is executed by \fBeval\fR or \fBuplevel\fR.
-.TP
-\fBprecompiled\fR\0\0\0\0\0\0\0\0
-means that the command is found in a precompiled script (loadable by
-the package \fBtbcload\fR), and no further information will be
-available.
+.IP \fBsource\fR
+A script loaded via the \fBsource\fR command.
+.IP \fBproc\fR
+The body of a procedure that could not be traced back to a
+line in a particular script.
+.IP \fBeval\fR
+The body of a script provided to \fBeval\fR or \fBuplevel\fR.
+.IP \fBprecompiled\fR
+A precompiled script (loadable by the package
+\fBtbcload\fR), and no further information is available.
 .RE
-.TP
-\fBline\fR
-This entry provides the number of the line the command is at inside of
-the script it is a part of. This information is not present for type
-\fBprecompiled\fR. For type \fBsource\fR this information is counted
-relative to the beginning of the file, whereas for the last two types
-the line is counted relative to the start of the script.
-.TP
-\fBfile\fR
-This entry is present only for type \fBsource\fR. It provides the
-normalized path of the file the command is in.
-.TP
-\fBcmd\fR
-This entry provides the string representation of the command. This is
-usually the unsubstituted form, however for commands which are a pure
-list executed by eval it is the substituted form as they have no other
-string representation. Care is taken that the pure-List property of
-the latter is not spoiled.
-.TP
-\fBproc\fR
-This entry is present only if the command is found in the body of a
-regular Tcl procedure. It then provides the name of that procedure.
-.TP
-\fBlambda\fR
-This entry is present only if the command is found in the body of an
-anonymous Tcl procedure, i.e. a lambda. It then provides the entire
-definition of the lambda in question.
-.TP
-\fBlevel\fR
-This entry is present only if the queried frame has a corresponding
-frame returned by \fBinfo level\fR. It provides the index of this
-frame, relative to the current level (0 and negative numbers).
+.IP \fBline\fR
+The line number of of the command inside its script.  Not available for
+\fBprecompiled\fR commands.  When the type is \fBsource\fR, the line number is
+relative to the beginning of the file, whereas for the last two types it is
+relative to the start of the script.
+.IP \fBfile\fR
+For type \fBsource\fR, provides the normalized path of the file that contains
+the command.
+.IP \fBcmd\fR
+The command before substitutions were performed.
+.IP \fBproc\fR
+For type \fBproc\fR, the name of the procedure containing the command.
+.IP \fBlambda\fR
+For a command in a script evaluated as the body of an unnamed routine via the
+\fBapply\fR command, the definition of that routine.
+.IP \fBlevel\fR
+For a frame that corresponds to a level, (to be determined).
 .PP
-A thing of note is that for procedures statically defined in files the
-locations of commands in their bodies will be reported with type
-\fBsource\fR and absolute line numbers, and not as type
-\fBproc\fR. The same is true for procedures nested in statically
-defined procedures, and literal eval scripts in files or statically
-defined procedures.
+When a command can be traced to its literal definition in some script, e.g.
+procedures nested in statically defined procedures, and literal eval scripts in
+files or statically defined procedures, its type is \fBsource\fR and its
+location is the absolute line number in the script.  Otherwise, its type is
+\fBproc\fR and its location is its line number within the body of the
+procedure.
 .PP
-In contrast, a procedure definition or \fBeval\fR within a dynamically
-\fBeval\fRuated environment count linenumbers relative to the start of
+In contrast, procedure definitions and \fBeval\fR within a dynamically
+\fBeval\fRuated environment count line numbers relative to the start of
 their script, even if they would be able to count relative to the
 start of the outer dynamic script. That type of number usually makes
 more sense.
 .PP
-A different way of describing this behaviour is that file based
+A different way of describing this behaviour is that file-based
 locations are tracked as deeply as possible, and where this is not
 possible the lines are counted based on the smallest possible
 \fBeval\fR or procedure body, as that scope is usually easier to find
 than any dynamic outer scope.
 .PP
 The syntactic form \fB{*}\fR is handled like \fBeval\fR. I.e. if it
-is given a literal list argument the system tracks the linenumber
-within the list words as well, and otherwise all linenumbers are
+is given a literal list argument the system tracks the line number
+within the list words as well, and otherwise all line numbers are
 counted relative to the start of each word (smallest scope)
 .RE
+.\" METHOD: functions
 .TP
 \fBinfo functions \fR?\fIpattern\fR?
-If \fIpattern\fR is not specified, returns a list of all the math
+.
+If \fIpattern\fR is not given, returns a list of all the math
 functions currently defined.
-If \fIpattern\fR is specified, only those functions whose name matches
-\fIpattern\fR are returned.  Matching is determined using the same
-rules as for \fBstring match\fR.
+If \fIpattern\fR is given, returns only those names that match
+\fIpattern\fR according to \fBstring match\fR.
+.\" METHOD: globals
 .TP
 \fBinfo globals \fR?\fIpattern\fR?
-If \fIpattern\fR is not specified, returns a list of all the names
+.
+If \fIpattern\fR is not given, returns a list of all the names
 of currently-defined global variables.
 Global variables are variables in the global namespace.
-If \fIpattern\fR is specified, only those names matching \fIpattern\fR
+If \fIpattern\fR is given, only those names matching \fIpattern\fR
 are returned.  Matching is determined using the same rules as for
 \fBstring match\fR.
+.\" METHOD: hostname
 .TP
 \fBinfo hostname\fR
-Returns the name of the computer on which this invocation is being
-executed.
-Note that this name is not guaranteed to be the fully qualified domain
-name of the host.  Where machines have several different names (as is
+.
+Returns the name of the current host.
+.RS
+.PP
+This name is not guaranteed to be the fully-qualified domain
+name of the host.  Where machines have several different names, as is
 common on systems with both TCP/IP (DNS) and NetBIOS-based networking
-installed,) it is the name that is suitable for TCP/IP networking that
+installed, it is the name that is suitable for TCP/IP networking that
 is returned.
-.TP
-\fBinfo level\fR ?\fInumber\fR?
-If \fInumber\fR is not specified, this command returns a number
-giving the stack level of the invoking procedure, or 0 if the
-command is invoked at top-level.  If \fInumber\fR is specified,
-then the result is a list consisting of the name and arguments for the
-procedure call at level \fInumber\fR on the stack.  If \fInumber\fR
-is positive then it selects a particular stack level (1 refers
-to the top-most active procedure, 2 to the procedure it called, and
-so on); otherwise it gives a level relative to the current level
-(0 refers to the current procedure, -1 to its caller, and so on).
-See the \fBuplevel\fR command for more information on what stack
-levels mean.
+.RE
+.\" METHOD: level
+.TP
+\fBinfo level\fR ?\fIlevel\fR?
+.
+If \fInumber\fR is not given, the level this routine was called from.
+Otherwise returns the complete command active at the given level.  If
+\fInumber\fR is greater than \fB0\fR, it is the desired level.  Otherwise, it
+is \fInumber\fR levels up from the current level.  A complete command is the
+words in the command, with all substitutions performed, meaning that it is a
+list.  See \fBuplevel\fR for more information on levels.
+.\" METHOD: library
 .TP
 \fBinfo library\fR
-Returns the name of the library directory in which standard Tcl
-scripts are stored.
-This is actually the value of the \fBtcl_library\fR
-variable and may be changed by setting \fBtcl_library\fR.
-See the \fBtclvars\fR manual entry for more information.
-.TP
-\fBinfo loaded \fR?\fIinterp\fR?
-Returns a list describing all of the packages that have been loaded into
-\fIinterp\fR with the \fBload\fR command.
-Each list element is a sub-list with two elements consisting of the
-name of the file from which the package was loaded and the name of
-the package.
-For statically-loaded packages the file name will be an empty string.
-If \fIinterp\fR is omitted then information is returned for all packages
-loaded in any interpreter in the process.
-To get a list of just the packages in the current interpreter, specify
-an empty string for the \fIinterp\fR argument.
+.
+Returns the value of \fBtcl_library\fR, which is the name of the library
+directory in which the scripts distributed with Tcl scripts are stored.
+.\" METHOD: loaded
+.TP
+\fBinfo loaded \fR?\fIinterp\fR? ?\fIprefix\fR?
+.
+Returns the name of each file loaded in \fIinterp\fR by the \fBload\fR command
+with prefix \fIprefix\fR .  If \fIprefix\fR is not given, returns a list where
+each item is the name of the loaded file and the prefix for which the file
+was loaded.  For a statically-loaded package the name of the file is the empty
+string.  For \fIinterp\fR, the empty string is the current interpreter.
+.\" METHOD: locals
 .TP
 \fBinfo locals \fR?\fIpattern\fR?
-If \fIpattern\fR is not specified, returns a list of all the names
-of currently-defined local variables, including arguments to the
-current procedure, if any.
-Variables defined with the \fBglobal\fR, \fBupvar\fR  and
-\fBvariable\fR commands will not be returned.
-If \fIpattern\fR is specified, only those names matching \fIpattern\fR
-are returned.  Matching is determined using the same rules as for
-\fBstring match\fR.
+.
+If \fIpattern\fR is given, returns the name of each local variable matching
+\fIpattern\fR according to \fBstring match\fR.  Otherwise, returns the name of
+each local variable.  A variables defined with the \fBglobal\fR, \fBupvar\fR or
+\fBvariable\fR is not local.
+.\" METHOD: nameofexecutable
 .TP
 \fBinfo nameofexecutable\fR
-Returns the full path name of the binary file from which the application
-was invoked.  If Tcl was unable to identify the file, then an empty
-string is returned.
+.
+Returns the absolute pathname of the program for the current interpreter.  If
+such a file can not be identified an empty string is returned.
+.\" METHOD: object
+.TP
+\fBinfo object\fI subcommand object\fR ?\fIarg ...\fR
+.
+Returns information about the object named \fIobject\fR. \fIsubcommand\fR is
+described \fBOBJECT INTROSPECTION\fR below.
+.\" METHOD: patchlevel
 .TP
 \fBinfo patchlevel\fR
-Returns the value of the global variable \fBtcl_patchLevel\fR; see
-the \fBtclvars\fR manual entry for more information.
+.
+Returns the value of the global variable \fBtcl_patchLevel\fR, in which the
+exact version of the Tcl library initially stored.
+.\" METHOD: procs
 .TP
 \fBinfo procs \fR?\fIpattern\fR?
-If \fIpattern\fR is not specified, returns a list of all the
-names of Tcl command procedures in the current namespace.
-If \fIpattern\fR is specified,
-only those procedure names in the current namespace
-matching \fIpattern\fR are returned.
-Matching is determined using the same rules as for
-\fBstring match\fR.
-If \fIpattern\fR contains any namespace separators, they are used to
-select a namespace relative to the current namespace (or relative to
-the global namespace if \fIpattern\fR starts with \fB::\fR) to match
-within; the matching pattern is taken to be the part after the last
-namespace separator.
+.
+Returns the names of all visible procedures. If \fIpattern\fR is given, returns
+only those names that match according to \fBstring match\fR.  Only the final
+component in \fIpattern\fR is actually considered a pattern.  Any qualifying
+components simply select a namespace.  See \fBNAMESPACE RESOLUTION\fR in the
+\fBnamespace\fR(n) documentation.
+.\" METHOD: script
 .TP
 \fBinfo script\fR ?\fIfilename\fR?
-If a Tcl script file is currently being evaluated (i.e. there is a
-call to \fBTcl_EvalFile\fR active or there is an active invocation
-of the \fBsource\fR command), then this command returns the name
-of the innermost file being processed.  If \fIfilename\fR is specified,
-then the return value of this command will be modified for the
-duration of the active invocation to return that name.  This is
-useful in virtual file system applications.
-Otherwise the command returns an empty string.
+.
+Returns the pathname of the innermost script currently being evaluated, or the
+empty string if no pathname can be determined.  If \fIfilename\fR is given,
+sets the return value of any future calls to \fBinfo script\fR for the duration
+of the innermost active script.  This is useful in virtual file system
+applications.
+.\" METHOD: sharedlibextension
 .TP
 \fBinfo sharedlibextension\fR
-Returns the extension used on this platform for the names of files
-containing shared libraries (for example, \fB.so\fR under Solaris).
-If shared libraries are not supported on this platform then an empty
-string is returned.
+.
+Returns the extension used on this platform for names of shared libraries, e.g.
+\fB.so\fR under Solaris.  Returns the empty string if shared libraries are not
+supported on this platform.
+.\" METHOD: tclversion
 .TP
 \fBinfo tclversion\fR
-Returns the value of the global variable \fBtcl_version\fR; see
-the \fBtclvars\fR manual entry for more information.
+.
+Returns the value of the global variable \fBtcl_version\fR, in which the
+major and minor version of the Tcl library are stored.
+.\" METHOD: vars
 .TP
 \fBinfo vars\fR ?\fIpattern\fR?
-If \fIpattern\fR is not specified,
-returns a list of all the names of currently-visible variables.
-This includes locals and currently-visible globals.
-If \fIpattern\fR is specified, only those names matching \fIpattern\fR
-are returned.  Matching is determined using the same rules as for
+.
+If \fIpattern\fR is not given, returns the names of all visible variables.  If
+\fIpattern\fR is given, returns only those names that match according to
+\fBstring match\fR.  Only the last component of \fIpattern\fR is a pattern.
+Other components identify a namespace.  See \fBNAMESPACE RESOLUTION\fR in the
+\fBnamespace\fR(n) documentation.  When \fIpattern\fR is a qualified name,
+results are fully qualified.
+.RS
+.PP
+A variable that has been declared but not yet given a value will be included in
+the results.
+.RE
+.SS "CLASS INTROSPECTION"
+.PP
+The following \fIsubcommand\fR values are supported by \fBinfo class\fR:
+.\" METHOD: call
+.TP
+\fBinfo class call\fI class method\fR
+.
+Returns a description of the method implementations that are used to provide a
+stereotypical instance of \fIclass\fR's implementation of \fImethod\fR
+(stereotypical instances being objects instantiated by a class without having
+any object-specific definitions added). This consists of a list of lists of
+four elements, where each sublist consists of a word that describes the
+general type of method implementation (being one of \fBmethod\fR for an
+ordinary method, \fBfilter\fR for an applied filter,
+.VS TIP500
+\fBprivate\fR for a private method,
+.VE TIP500
+and \fBunknown\fR for a
+method that is invoked as part of unknown method handling), a word giving the
+name of the particular method invoked (which is always the same as
+\fImethod\fR for the \fBmethod\fR type, and
+.QW \fBunknown\fR
+for the \fBunknown\fR type), a word giving the fully qualified name of the
+class that defined the method, and a word describing the type of method
+implementation (see \fBinfo class methodtype\fR).
+.RS
+.PP
+Note that there is no inspection of whether the method implementations
+actually use \fBnext\fR to transfer control along the call chain,
+.VS TIP500
+and the call chains that this command files do not actually contain private
+methods.
+.VE TIP500
+.RE
+.\" METHOD: constructor
+.TP
+\fBinfo class constructor\fI class\fR
+.
+This subcommand returns a description of the definition of the constructor of
+class \fIclass\fR. The definition is described as a two element list; the first
+element is the list of arguments to the constructor in a form suitable for
+passing to another call to \fBproc\fR or a method definition, and the second
+element is the body of the constructor. If no constructor is present, this
+returns the empty list.
+.\" METHOD: definition
+.TP
+\fBinfo class definition\fI class method\fR
+.
+This subcommand returns a description of the definition of the method named
+\fImethod\fR of class \fIclass\fR. The definition is described as a two element
+list; the first element is the list of arguments to the method in a form
+suitable for passing to another call to \fBproc\fR or a method definition, and
+the second element is the body of the method.
+.\" METHOD: definitionnamespace
+.TP
+\fBinfo class definitionnamespace\fI class\fR ?\fIkind\fR?
+.VS TIP524
+This subcommand returns the definition namespace for \fIkind\fR definitions of
+the class \fIclass\fR; the definition namespace only affects the instances of
+\fIclass\fR, not \fIclass\fR itself. The \fIkind\fR can be either
+\fB\-class\fR to return the definition namespace used for \fBoo::define\fR, or
+\fB\-instance\fR to return the definition namespace used for
+\fBoo::objdefine\fR; the \fB\-class\fR kind is default (though this is only
+actually useful on classes that are subclasses of \fBoo::class\fR).
+.RS
+.PP
+If \fIclass\fR does not provide a definition namespace of the given kind,
+this command returns the empty string. In those circumstances, the
+\fBoo::define\fR and \fBoo::objdefine\fR commands look up which definition
+namespace to use using the class inheritance hierarchy.
+.RE
+.VE TIP524
+.\" METHOD: destructor
+.TP
+\fBinfo class destructor\fI class\fR
+.
+This subcommand returns the body of the destructor of class \fIclass\fR. If no
+destructor is present, this returns the empty string.
+.\" METHOD: filters
+.TP
+\fBinfo class filters\fI class\fR
+.
+This subcommand returns the list of filter methods set on the class.
+.\" METHOD: forward
+.TP
+\fBinfo class forward\fI class method\fR
+.
+This subcommand returns the argument list for the method forwarding called
+\fImethod\fR that is set on the class called \fIclass\fR.
+.\" METHOD: instances
+.TP
+\fBinfo class instances\fI class\fR ?\fIpattern\fR?
+.
+This subcommand returns a list of instances of class \fIclass\fR. If the
+optional \fIpattern\fR argument is present, it constrains the list of returned
+instances to those that match it according to the rules of \fBstring match\fR.
+.\" METHOD: methods
+.TP
+\fBinfo class methods\fI class\fR ?\fIoptions...\fR?
+.
+This subcommand returns a list of all public (i.e. exported) methods of the
+class called \fIclass\fR. Any of the following \fIoption\fRs may be
+given, controlling exactly which method names are returned:
+.RS
+.\" OPTION: -all
+.TP
+\fB\-all\fR
+.
+If the \fB\-all\fR flag is given,
+.VS TIP500
+and the \fB\-scope\fR flag is not given,
+.VE TIP500
+the list of methods will include those
+methods defined not just by the class, but also by the class's superclasses
+and mixins.
+.\" OPTION: -private
+.TP
+\fB\-private\fR
+.
+If the \fB\-private\fR flag is given,
+.VS TIP500
+and the \fB\-scope\fR flag is not given,
+.VE TIP500
+the list of methods will also include
+the non-exported methods of the class (and superclasses and
+mixins, if \fB\-all\fR is also given).
+.VS TIP500
+Note that this naming is an unfortunate clash with true private methods; this
+option name is retained for backward compatibility.
+.VE TIP500
+.\" OPTION: -scope
+.TP
+\fB\-scope\fI scope\fR
+.VS TIP500
+Returns a list of all methods on \fIclass\fR that have the given visibility
+\fIscope\fR.  When this option is supplied, both the \fB\-all\fR and
+\fB\-private\fR options are ignored. The valid values for \fIscope\fR are:
+.RS
+.IP \fBpublic\fR 3
+Only methods with \fIpublic\fR scope (i.e., callable from anywhere by any
+instance of this class) are to be returned.
+.IP \fBunexported\fR 3
+Only methods with \fIunexported\fR scope (i.e., only callable via \fBmy\fR)
+are to be returned.
+.IP \fBprivate\fR 3
+Only methods with \fIprivate\fR scope (i.e., only callable from within this
+class's methods) are to be returned.
+.RE
+.VE TIP500
+.RE
+.\" METHOD: methodtype
+.TP
+\fBinfo class methodtype\fI class method\fR
+.
+This subcommand returns a description of the type of implementation used for
+the method named \fImethod\fR of class \fIclass\fR. When the result is
+\fBmethod\fR, further information can be discovered with \fBinfo class
+definition\fR, and when the result is \fBforward\fR, further information can
+be discovered with \fBinfo class forward\fR.
+.\" METHOD: mixins
+.TP
+\fBinfo class mixins\fI class\fR
+.
+This subcommand returns a list of all classes that have been mixed into the
+class named \fIclass\fR.
+.\" METHOD: properties
+.TP
+\fBinfo class properties\fI class\fR ?\fIoptions...\fR
+.VS TIP558
+This subcommand returns a sorted list of properties defined on the class named
+\fIclass\fR. The \fIoptions\fR define exactly which properties are returned:
+.RS
+.\" OPTION: -all
+.TP
+\fB\-all\fR
+.
+With this option, the properties from the superclasses and mixins of the class
+are also returned.
+.\" OPTION: -readable
+.TP
+\fB\-readable\fR
+.
+This option (the default behavior) asks for the readable properties to be
+returned. Only readable or writable properties are returned, not both.
+.\" OPTION: -writable
+.TP
+\fB\-writable\fR
+.
+This option asks for the writable properties to be returned.  Only readable or
+writable properties are returned, not both.
+.RE
+.VE TIP558
+.\" METHOD: subclasses
+.TP
+\fBinfo class subclasses\fI class\fR ?\fIpattern\fR?
+.
+This subcommand returns a list of direct subclasses of class \fIclass\fR. If
+the optional \fIpattern\fR argument is present, it constrains the list of
+returned classes to those that match it according to the rules of
 \fBstring match\fR.
-\fIpattern\fR can be a qualified name like \fBFoo::option*\fR.
-That is, it may specify a particular namespace
-using a sequence of namespace names separated by double colons (\fB::\fR),
-and may have pattern matching special characters
-at the end to specify a set of variables in that namespace.
-If \fIpattern\fR is a qualified name,
-the resulting list of variable names
-has each matching namespace variable qualified with the name
-of its namespace.
-Note that a currently-visible variable may not yet
-.QW exist
-if it has not
-been set (e.g. a variable declared but not set by \fBvariable\fR).
-.SH EXAMPLE
+.\" METHOD: superclasses
+.TP
+\fBinfo class superclasses\fI class\fR
+.
+This subcommand returns a list of direct superclasses of class \fIclass\fR in
+inheritance precedence order.
+.\" METHOD: variables
+.TP
+\fBinfo class variables\fI class\fR ?\fB\-private\fR?
+.
+This subcommand returns a list of all variables that have been declared for
+the class named \fIclass\fR (i.e. that are automatically present in the
+class's methods, constructor and destructor).
+.VS TIP500
+If the \fB\-private\fR option is given, this lists the private variables
+declared instead.
+.VE TIP500
+.SS "OBJECT INTROSPECTION"
+.PP
+The following \fIsubcommand\fR values are supported by \fBinfo object\fR:
+.\" METHOD: call
+.TP
+\fBinfo object call\fI object method\fR
+.
+Returns a description of the method implementations that are used to provide
+\fIobject\fR's implementation of \fImethod\fR.  This consists of a list of
+lists of four elements, where each sublist consists of a word that describes
+the general type of method implementation (being one of \fBmethod\fR for an
+ordinary method, \fBfilter\fR for an applied filter,
+.VS TIP500
+\fBprivate\fR for a private method,
+.VE TIP500
+and \fBunknown\fR for a
+method that is invoked as part of unknown method handling), a word giving the
+name of the particular method invoked (which is always the same as
+\fImethod\fR for the \fBmethod\fR type, and
+.QW \fBunknown\fR
+for the \fBunknown\fR type), a word giving what defined the method (the fully
+qualified name of the class, or the literal string \fBobject\fR if the method
+implementation is on an instance), and a word describing the type of method
+implementation (see \fBinfo object methodtype\fR).
+.RS
+.PP
+Note that there is no inspection of whether the method implementations
+actually use \fBnext\fR to transfer control along the call chain,
+.VS TIP500
+and the call chains that this command files do not actually contain private
+methods.
+.VE TIP500
+.RE
+.\" METHOD: class
+.TP
+\fBinfo object class\fI object\fR ?\fIclassName\fR?
+.
+If \fIclassName\fR is not given, this subcommand returns class of the
+\fIobject\fR object. If \fIclassName\fR is present, this subcommand returns a
+boolean value indicating whether the \fIobject\fR is of that class.
+.\" METHOD: creationid
+.TP
+\fBinfo object creationid\fI object\fR
+.VS TIP500
+Returns the unique creation identifier for the \fIobject\fR object. This
+creation identifier is unique to the object (within a Tcl interpreter) and
+cannot be controlled at object creation time or altered afterwards.
+.RS
+.PP
+\fIImplementation note:\fR the creation identifier is used to generate unique
+identifiers associated with the object, especially for private variables.
+.RE
+.VE TIP500
+.\" METHOD: definition
+.TP
+\fBinfo object definition\fI object method\fR
+.
+This subcommand returns a description of the definition of the method named
+\fImethod\fR of object \fIobject\fR. The definition is described as a two
+element list; the first element is the list of arguments to the method in a
+form suitable for passing to another call to \fBproc\fR or a method definition,
+and the second element is the body of the method.
+.\" METHOD: filters
+.TP
+\fBinfo object filters\fI object\fR
+.
+This subcommand returns the list of filter methods set on the object.
+.\" METHOD: forward
+.TP
+\fBinfo object forward\fI object method\fR
+.
+This subcommand returns the argument list for the method forwarding called
+\fImethod\fR that is set on the object called \fIobject\fR.
+.\" METHOD: isa
+.TP
+\fBinfo object isa\fI category object\fR ?\fIarg\fR?
+.
+This subcommand tests whether an object belongs to a particular category,
+returning a boolean value that indicates whether the \fIobject\fR argument
+meets the criteria for the category. The supported categories are:
+.RS
+.TP
+\fBinfo object isa class\fI object\fR
+.
+This returns whether \fIobject\fR is a class (i.e. an instance of
+\fBoo::class\fR or one of its subclasses).
+.TP
+\fBinfo object isa metaclass\fI object\fR
+.
+This returns whether \fIobject\fR is a class that can manufacture classes
+(i.e. is \fBoo::class\fR or a subclass of it).
+.TP
+\fBinfo object isa mixin\fI object class\fR
+.
+This returns whether \fIclass\fR is directly mixed into \fIobject\fR.
+.TP
+\fBinfo object isa object\fI object\fR
+.
+This returns whether \fIobject\fR really is an object.
+.TP
+\fBinfo object isa typeof\fI object class\fR
+.
+This returns whether \fIclass\fR is the type of \fIobject\fR (i.e. whether
+\fIobject\fR is an instance of \fIclass\fR or one of its subclasses, whether
+direct or indirect).
+.RE
+.\" METHOD: methods
+.TP
+\fBinfo object methods\fI object\fR ?\fIoption...\fR?
+.
+This subcommand returns a list of all public (i.e. exported) methods of the
+object called \fIobject\fR. Any of the following \fIoption\fRs may be
+given, controlling exactly which method names are returned:
+.RS
+.\" OPTION: -all
+.TP
+\fB\-all\fR
+.
+If the \fB\-all\fR flag is given,
+.VS TIP500
+and the \fB\-scope\fR flag is not given,
+.VE TIP500
+the list of methods will include those
+methods defined not just by the object, but also by the object's class and
+mixins, plus the superclasses of those classes.
+.\" OPTION: -private
+.TP
+\fB\-private\fR
+.
+If the \fB\-private\fR flag is given,
+.VS TIP500
+and the \fB\-scope\fR flag is not given,
+.VE TIP500
+the list of methods will also include
+the non-exported methods of the object (and classes, if
+\fB\-all\fR is also given).
+.VS TIP500
+Note that this naming is an unfortunate clash with true private methods; this
+option name is retained for backward compatibility.
+.VE TIP500
+.\" OPTION: -scope
+.TP
+\fB\-scope\fI scope\fR
+.VS TIP500
+Returns a list of all methods on \fIobject\fR that have the given visibility
+\fIscope\fR.  When this option is supplied, both the \fB\-all\fR and
+\fB\-private\fR options are ignored. The valid values for \fIscope\fR are:
+.RS
+.IP \fBpublic\fR 3
+Only methods with \fIpublic\fR scope (i.e., callable from anywhere) are to be
+returned.
+.IP \fBunexported\fR 3
+Only methods with \fIunexported\fR scope (i.e., only callable via \fBmy\fR)
+are to be returned.
+.IP \fBprivate\fR 3
+Only methods with \fIprivate\fR scope (i.e., only callable from within this
+object's instance methods) are to be returned.
+.RE
+.VE TIP500
+.RE
+.\" METHOD: methodtype
+.TP
+\fBinfo object methodtype\fI object method\fR
+.
+This subcommand returns a description of the type of implementation used for
+the method named \fImethod\fR of object \fIobject\fR. When the result is
+\fBmethod\fR, further information can be discovered with \fBinfo object
+definition\fR, and when the result is \fBforward\fR, further information can
+be discovered with \fBinfo object forward\fR.
+.\" METHOD: mixins
+.TP
+\fBinfo object mixins\fI object\fR
+.
+This subcommand returns a list of all classes that have been mixed into the
+object named \fIobject\fR.
+.\" METHOD: namespace
+.TP
+\fBinfo object namespace\fI object\fR
+.
+This subcommand returns the name of the internal namespace of the object named
+\fIobject\fR.
+.\" METHOD: properties
+.TP
+\fBinfo object properties\fI object\fR ?\fIoptions...\fR
+.VS TIP558
+This subcommand returns a sorted list of properties defined on the object
+named \fIobject\fR. The \fIoptions\fR define exactly which properties are
+returned:
+.RS
+.\" OPTION: -all
+.TP
+\fB\-all\fR
+.
+With this option, the properties from the class, superclasses and mixins of
+the object are also returned.
+.\" OPTION: -readable
+.TP
+\fB\-readable\fR
+.
+This option (the default behavior) asks for the readable properties to be
+returned. Only readable or writable properties are returned, not both.
+.\" OPTION: -writable
+.TP
+\fB\-writable\fR
+.
+This option asks for the writable properties to be returned. Only readable or
+writable properties are returned, not both.
+.RE
+.VE TIP558
+.\" METHOD: variables
+.TP
+\fBinfo object variables\fI object\fR ?\fB\-private\fR?
+.
+This subcommand returns a list of all variables that have been declared for
+the object named \fIobject\fR (i.e. that are automatically present in the
+object's methods).
+.VS TIP500
+If the \fB\-private\fR option is given, this lists the private variables
+declared instead.
+.VE TIP500
+.\" METHOD: vars
+.TP
+\fBinfo object vars\fI object\fR ?\fIpattern\fR?
+.
+This subcommand returns a list of all variables in the private namespace of
+the object named \fIobject\fR. If the optional \fIpattern\fR argument is
+given, it is a filter (in the syntax of a \fBstring match\fR glob pattern)
+that constrains the list of variables returned. Note that this is different
+from the list returned by \fBinfo object variables\fR; that can include
+variables that are currently unset, whereas this can include variables that
+are not automatically included by any of \fIobject\fR's methods (or those of
+its class, superclasses or mixins).
+.SH EXAMPLES
+.PP
 This command prints out a procedure suitable for saving in a Tcl
 script:
 .PP
@@ -339,10 +831,75 @@ proc printProc {procName} {
     puts [lappend result $formals [\fBinfo body\fR $procName]]
 }
 .CE
+.SS "EXAMPLES WITH OBJECTS"
+.PP
+Every object necessarily knows what its class is; this information is
+trivially extractable through introspection:
+.PP
+.CS
+oo::class create c
+c create o
+puts [\fBinfo object class\fR o]
+                     \fI\(-> prints "::c"\fR
+puts [\fBinfo object class\fR c]
+                     \fI\(-> prints "::oo::class"\fR
+.CE
+.PP
+The introspection capabilities can be used to discover what class implements a
+method and get how it is defined. This procedure illustrates how:
+.PP
+.CS
+proc getDef {obj method} {
+    foreach inf [\fBinfo object call\fR $obj $method] {
+        lassign $inf calltype name locus methodtype
+
+        # Assume no forwards or filters, and hence no $calltype
+        # or $methodtype checks...
+
+        if {$locus eq "object"} {
+            return [\fBinfo object definition\fR $obj $name]
+        } else {
+            return [\fBinfo class definition\fR $locus $name]
+        }
+    }
+    error "no definition for $method"
+}
+.CE
+.PP
+This is an alternate way of looking up the definition; it is implemented by
+manually scanning the list of methods up the inheritance tree. This code
+assumes that only single inheritance is in use, and that there is no complex
+use of mixed-in classes (in such cases, using \fBinfo object call\fR as above
+is the simplest way of doing this by far):
+.PP
+.CS
+proc getDef {obj method} {
+    if {$method in [\fBinfo object methods\fR $obj]} {
+        # Assume no forwards
+        return [\fBinfo object definition\fR $obj $method]
+    }
+
+    set cls [\fBinfo object class\fR $obj]
+
+    while {$method ni [\fBinfo class methods\fR $cls]} {
+        # Assume the simple case
+        set cls [lindex [\fBinfo class superclass\fR $cls] 0]
+        if {$cls eq ""} {
+            error "no definition for $method"
+        }
+    }
+
+    # Assume no forwards
+    return [\fBinfo class definition\fR $cls $method]
+}
+.CE
 .SH "SEE ALSO"
-global(n), proc(n)
+global(n), oo::class(n), oo::define(n), oo::object(n), proc(n), self(n),
+tcl_library(n), tcl_patchLevel(n), tcl_version(n)
 .SH KEYWORDS
-command, information, interpreter, level, namespace, procedure, variable
-.\" Local Variables:
-.\" mode: nroff
-.\" End:
+command, information, interpreter, introspection, level, namespace,
+object, procedure, variable
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/interp.n b/doc/interp.n
index d9ce0c4..5e0e99c 100644
--- a/doc/interp.n
+++ b/doc/interp.n
@@ -1,11 +1,12 @@
 '\"
 '\" Copyright (c) 1995-1996 Sun Microsystems, Inc.
 '\" Copyright (c) 2004 Donal K. Fellows
+'\" Copyright (c) 2006-2008 Joe Mistachkin.
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-.TH interp n 7.6 Tcl "Tcl Built-In Commands"
+'\"
+.TH interp n 8.6 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
@@ -18,32 +19,29 @@ interp \- Create and manipulate Tcl interpreters
 .PP
 This command makes it possible to create one or more new Tcl
 interpreters that co-exist with the creating interpreter in the
-same application.  The creating interpreter is called the \fImaster\fR
-and the new interpreter is called a \fIslave\fR.
-A master can create any number of slaves, and each slave can
-itself create additional slaves for which it is master, resulting
+same application.  The creating interpreter is called the \fIparent\fR
+and the new interpreter is called a \fIchild\fR.
+A parent can create any number of children, and each child can
+itself create additional children for which it is parent, resulting
 in a hierarchy of interpreters.
 .PP
 Each interpreter is independent from the others: it has its own name
 space for commands, procedures, and global variables.
-A master interpreter may create connections between its slaves and
+A parent interpreter may create connections between its children and
 itself using a mechanism called an \fIalias\fR.  An \fIalias\fR is
-a command in a slave interpreter which, when invoked, causes a
-command to be invoked in its master interpreter or in another slave
+a command in a child interpreter which, when invoked, causes a
+command to be invoked in its parent interpreter or in another child
 interpreter.  The only other connections between interpreters are
 through environment variables (the \fBenv\fR variable), which are
 normally shared among all interpreters in the application,
-.VS 8.5
-and by resource limit exceeded callbacks.
-.VE 8.5
-Note that the
+and by resource limit exceeded callbacks. Note that the
 name space for files (such as the names returned by the \fBopen\fR command)
 is no longer shared between interpreters. Explicit commands are provided to
 share files and to transfer references to open files from one interpreter
 to another.
 .PP
 The \fBinterp\fR command also provides support for \fIsafe\fR
-interpreters.  A safe interpreter is a slave whose functions have
+interpreters.  A safe interpreter is a child whose functions have
 been greatly restricted, so that it is safe to execute untrusted
 scripts without fear of them damaging other interpreters or the
 application's environment. For example, all IO channel creation
@@ -56,50 +54,62 @@ instead, it is \fIhidden\fR, so that only trusted interpreters can obtain
 access to it. For a detailed explanation of hidden commands, see
 \fBHIDDEN COMMANDS\fR, below.
 The alias mechanism can be used for protected communication (analogous to a
-kernel call) between a slave interpreter and its master.
+kernel call) between a child interpreter and its parent.
 See \fBALIAS INVOCATION\fR, below, for more details
 on how the alias mechanism works.
 .PP
-A qualified interpreter name is a proper Tcl lists containing a subset of its
+A qualified interpreter name is a proper Tcl list containing a subset of its
 ancestors in the interpreter hierarchy, terminated by the string naming the
-interpreter in its immediate master. Interpreter names are relative to the
-interpreter in which they are used. For example, if \fBa\fR is a slave of
-the current interpreter and it has a slave \fBa1\fR, which in turn has a
-slave \fBa11\fR, the qualified name of \fBa11\fR in \fBa\fR is the list
-\fBa1 a11\fR.
+interpreter in its immediate parent. Interpreter names are relative to the
+interpreter in which they are used. For example, if
+.QW \fBa\fR
+is a child of the current interpreter and it has a child
+.QW \fBa1\fR ,
+which in turn has a child
+.QW \fBa11\fR ,
+the qualified name of
+.QW \fBa11\fR
+in
+.QW \fBa\fR
+is the list
+.QW "\fBa1 a11\fR" .
 .PP
 The \fBinterp\fR command, described below, accepts qualified interpreter
 names as arguments; the interpreter in which the command is being evaluated
 can always be referred to as \fB{}\fR (the empty list or string). Note that
-it is impossible to refer to a master (ancestor) interpreter by name in a
-slave interpreter except through aliases. Also, there is no global name by
+it is impossible to refer to a parent (ancestor) interpreter by name in a
+child interpreter except through aliases. Also, there is no global name by
 which one can refer to the first interpreter created in an application.
 Both restrictions are motivated by safety concerns.
 .SH "THE INTERP COMMAND"
 .PP
 The \fBinterp\fR command is used to create, delete, and manipulate
-slave interpreters, and to share or transfer
+child interpreters, and to share or transfer
 channels between interpreters.  It can have any of several forms, depending
 on the \fIsubcommand\fR argument:
+.\" METHOD: alias
 .TP
-\fBinterp\fR \fBalias\fR \fIsrcPath\fR \fIsrcToken\fR
+\fBinterp alias\fI srcPath srcToken\fR
+.
 Returns a Tcl list whose elements are the \fItargetCmd\fR and
 \fIarg\fRs associated with the alias represented by \fIsrcToken\fR
 (this is the value returned when the alias was
 created; it is possible that the name of the source command in the
-slave is different from \fIsrcToken\fR).
+child is different from \fIsrcToken\fR).
 .TP
-\fBinterp\fR \fBalias\fR \fIsrcPath\fR \fIsrcToken\fR \fB{}\fR
-Deletes the alias for \fIsrcToken\fR in the slave interpreter identified by
+\fBinterp alias\fI srcPath srcToken\fR \fB{}\fR
+.
+Deletes the alias for \fIsrcToken\fR in the child interpreter identified by
 \fIsrcPath\fR.
 \fIsrcToken\fR refers to the value returned when the alias
 was created;  if the source command has been renamed, the renamed
 command will be deleted.
 .TP
-\fBinterp\fR \fBalias\fR \fIsrcPath\fR \fIsrcCmd\fR \fItargetPath\fR \fItargetCmd \fR?\fIarg arg ...\fR?
-This command creates an alias between one slave and another (see the
-\fBalias\fR slave command below for creating aliases between a slave
-and its master).  In this command, either of the slave interpreters
+\fBinterp alias\fI srcPath srcCmd targetPath targetCmd \fR?\fIarg arg ...\fR?
+.
+This command creates an alias between one child and another (see the
+\fBalias\fR child command below for creating aliases between a child
+and its parent).  In this command, either of the child interpreters
 may be anywhere in the hierarchy of interpreters under the interpreter
 invoking the command.
 \fISrcPath\fR and \fIsrcCmd\fR identify the source of the alias.
@@ -107,10 +117,12 @@ invoking the command.
 interpreter.  For example,
 .QW "\fBa b\fR"
 identifies an interpreter
-\fBb\fR, which is a slave of interpreter \fBa\fR, which is a slave
-of the invoking interpreter.  An empty list specifies the interpreter
-invoking the command.  \fIsrcCmd\fR gives the name of a new
-command, which will be created in the source interpreter.
+.QW \fBb\fR ,
+which is a child of interpreter
+.QW \fBa\fR ,
+which is a child of the invoking interpreter.  An empty list specifies
+the interpreter invoking the command.  \fIsrcCmd\fR gives the name of
+a new command, which will be created in the source interpreter.
 \fITargetPath\fR and \fItargetCmd\fR specify a target interpreter
 and command, and the \fIarg\fR arguments, if any, specify additional
 arguments to \fItargetCmd\fR which are prepended to any arguments specified
@@ -124,60 +136,88 @@ more details.
 The command returns a token that uniquely identifies the command created
 \fIsrcCmd\fR, even if the command is renamed afterwards. The token may but
 does not have to be equal to \fIsrcCmd\fR.
+.\" METHOD: aliases
 .TP
-\fBinterp\fR \fBaliases \fR?\fIpath\fR?
+\fBinterp aliases \fR?\fIpath\fR?
+.
 This command returns a Tcl list of the tokens of all the source commands for
 aliases defined in the interpreter identified by \fIpath\fR. The tokens
 correspond to the values returned when
 the aliases were created (which may not be the same
 as the current names of the commands).
+.\" METHOD: bgerror
 .TP
 \fBinterp bgerror \fIpath\fR ?\fIcmdPrefix\fR?
-.VS 8.5
-This command either gets or sets the current background error handler
+.
+This command either gets or sets the current background exception handler
 for the interpreter identified by \fIpath\fR. If \fIcmdPrefix\fR is
-absent, the current background error handler is returned, and if it is
+absent, the current background exception handler is returned, and if it is
 present, it is a list of words (of minimum length one) that describes
-what to set the interpreter's background error to. See the
-\fBBACKGROUND ERROR HANDLING\fR section for more details.
-.VE 8.5
-.TP
-\fBinterp\fR \fBcreate \fR?\fB\-safe\fR? ?\fB\-\|\-\fR? ?\fIpath\fR?
-Creates a slave interpreter identified by \fIpath\fR and a new command,
-called a \fIslave command\fR. The name of the slave command is the last
-component of \fIpath\fR. The new slave interpreter and the slave command
+what to set the interpreter's background exception handler to. See the
+\fBBACKGROUND EXCEPTION HANDLING\fR section for more details.
+.\" METHOD: cancel
+.TP
+\fBinterp cancel \fR?\fB\-unwind\fR? ?\fB\-\|\-\fR? ?\fIpath\fR? ?\fIresult\fR?
+.
+Cancels the script being evaluated in the interpreter identified by
+\fIpath\fR. Without the \fB\-unwind\fR switch the evaluation stack for
+the interpreter is unwound until an enclosing catch command is found or
+there are no further invocations of the interpreter left on the call
+stack. With the \fB\-unwind\fR switch the evaluation stack for the
+interpreter is unwound without regard to any intervening catch command
+until there are no further invocations of the interpreter left on the
+call stack. The \fB\-\|\-\fR switch can be used to mark the end of
+switches; it may be needed if \fIpath\fR is an unusual value such
+as \fB\-safe\fR. If \fIresult\fR is present, it will be used as the
+error message string; otherwise, a default error message string will be
+used.
+.\" METHOD: children
+.TP
+\fBinterp children\fR ?\fIpath\fR?
+.
+Returns a Tcl list of the names of all the child interpreters associated
+with the interpreter identified by \fIpath\fR. If \fIpath\fR is omitted,
+the invoking interpreter is used.
+.\" METHOD: create
+.TP
+\fBinterp create \fR?\fB\-safe\fR? ?\fB\-\|\-\fR? ?\fIpath\fR?
+.
+Creates a child interpreter identified by \fIpath\fR and a new command,
+called a \fIchild command\fR. The name of the child command is the last
+component of \fIpath\fR. The new child interpreter and the child command
 are created in the interpreter identified by the path obtained by removing
 the last component from \fIpath\fR. For example, if \fIpath\fR is \fBa b
-c\fR then a new slave interpreter and slave command named \fBc\fR are
+c\fR then a new child interpreter and child command named \fBc\fR are
 created in the interpreter identified by the path \fBa b\fR.
-The slave command may be used to manipulate the new interpreter as
+The child command may be used to manipulate the new interpreter as
 described below. If \fIpath\fR is omitted, Tcl creates a unique name of the
 form \fBinterp\fIx\fR, where \fIx\fR is an integer, and uses it for the
-interpreter and the slave command. If the \fB\-safe\fR switch is specified
-(or if the master interpreter is a safe interpreter), the new slave
+interpreter and the child command. If the \fB\-safe\fR switch is specified
+(or if the parent interpreter is a safe interpreter), the new child
 interpreter will be created as a safe interpreter with limited
-functionality; otherwise the slave will include the full set of Tcl
+functionality; otherwise the child will include the full set of Tcl
 built-in commands and variables. The \fB\-\|\-\fR switch can be used to
 mark the end of switches;  it may be needed if \fIpath\fR is an unusual
 value such as \fB\-safe\fR. The result of the command is the name of the
-new interpreter. The name of a slave interpreter must be unique among all
-the slaves for its master;  an error occurs if a slave interpreter by the
-given name already exists in this master.
-The initial recursion limit of the slave interpreter is set to the
+new interpreter. The name of a child interpreter must be unique among all
+the children for its parent;  an error occurs if a child interpreter by the
+given name already exists in this parent.
+The initial recursion limit of the child interpreter is set to the
 current recursion limit of its parent interpreter.
+.\" METHOD: debug
 .TP
-\fBinterp\fR \fBdebug \fIpath\fR ?\fI\-frame\fR ?\fIbool\fR??
+\fBinterp debug \fIpath\fR ?\fB\-frame\fR ?\fIbool\fR??
 .
 Controls whether frame-level stack information is captured in the
-slave interpreter identified by \fIpath\fR.  If no arguments are
-given, option and current setting are returned.  If \fI\-frame\fR
+child interpreter identified by \fIpath\fR.  If no arguments are
+given, option and current setting are returned.  If \fB\-frame\fR
 is given, the debug setting is set to the given boolean if provided
 and the current setting is returned.
-This only effects the output of \fBinfo frame\fR, in that exact
+This only affects the output of \fBinfo frame\fR, in that exact
 frame-level information for command invocation at the bytecode level
 is only captured with this setting on.
-.PP
 .RS
+.PP
 For example, with code like
 .PP
 .CS
@@ -202,34 +242,49 @@ extends so far that the system will be able to determine the file and
 absolute line number of this command, and return a frame of type
 \fBsource\fR. This more exact information is paid for with slower
 execution of all commands.
+.PP
+Note that once it is on, this flag cannot be switched back off: such
+attempts are silently ignored. This is needed to maintain the
+consistency of the underlying interpreter's state.
 .RE
+.\" METHOD: delete
 .TP
-\fBinterp\fR \fBdelete \fR?\fIpath ...?\fR
+\fBinterp delete \fR?\fIpath ...\fR?
+.
 Deletes zero or more interpreters given by the optional \fIpath\fR
-arguments, and for each interpreter, it also deletes its slaves. The
-command also deletes the slave command for each interpreter deleted.
+arguments, and for each interpreter, it also deletes its children. The
+command also deletes the child command for each interpreter deleted.
 For each \fIpath\fR argument, if no interpreter by that name
 exists, the command raises an error.
+.\" METHOD: eval
 .TP
-\fBinterp\fR \fBeval\fR \fIpath arg \fR?\fIarg ...\fR?
+\fBinterp eval\fI path arg \fR?\fIarg ...\fR?
+.
 This command concatenates all of the \fIarg\fR arguments in the same
 fashion as the \fBconcat\fR command, then evaluates the resulting string as
-a Tcl script in the slave interpreter identified by \fIpath\fR. The result
+a Tcl script in the child interpreter identified by \fIpath\fR. The result
 of this evaluation (including all \fBreturn\fR options,
 such as \fB\-errorinfo\fR and \fB\-errorcode\fR information, if an
 error occurs) is returned to the invoking interpreter.
+.RS
+.PP
 Note that the script will be executed in the current context stack frame of the
-\fIpath\fR interpreter; this is so that the implementations (in a master
-interpreter) of aliases in a slave interpreter can execute scripts in
-the slave that find out information about the slave's current state
+\fIpath\fR interpreter; this is so that the implementations (in a parent
+interpreter) of aliases in a child interpreter can execute scripts in
+the child that find out information about the child's current state
 and stack frame.
+.RE
+.\" METHOD: exists
 .TP
 \fBinterp exists \fIpath\fR
-Returns \fB1\fR if a slave interpreter by the specified \fIpath\fR
-exists in this master, \fB0\fR otherwise. If \fIpath\fR is omitted, the
+.
+Returns \fB1\fR if a child interpreter by the specified \fIpath\fR
+exists in this parent, \fB0\fR otherwise. If \fIpath\fR is omitted, the
 invoking interpreter is used.
+.\" METHOD: expose
 .TP
-\fBinterp expose \fIpath\fR \fIhiddenName\fR ?\fIexposedCmdName\fR?
+\fBinterp expose \fIpath hiddenName\fR ?\fIexposedCmdName\fR?
+.
 Makes the hidden command \fIhiddenName\fR exposed, eventually bringing
 it back under a new \fIexposedCmdName\fR name (this name is currently
 accepted only if it is a valid global name space name without any ::),
@@ -238,8 +293,10 @@ denoted by \fIpath\fR.
 If an exposed command with the targeted name already exists, this command
 fails.
 Hidden commands are explained in more detail in \fBHIDDEN COMMANDS\fR, below.
+.\" METHOD: hide
 .TP
-\fBinterp\fR \fBhide\fR \fIpath\fR \fIexposedCmdName\fR ?\fIhiddenCmdName\fR?
+\fBinterp hide\fI path exposedCmdName\fR ?\fIhiddenCmdName\fR?
+.
 Makes the exposed command \fIexposedCmdName\fR hidden, renaming
 it to the hidden command \fIhiddenCmdName\fR, or keeping the same name if
 \fIhiddenCmdName\fR is not given, in the interpreter denoted
@@ -250,15 +307,19 @@ Currently both \fIexposedCmdName\fR and \fIhiddenCmdName\fR can
 not contain namespace qualifiers, or an error is raised.
 Commands to be hidden by \fBinterp hide\fR are looked up in the global
 namespace even if the current namespace is not the global one. This
-prevents slaves from fooling a master interpreter into hiding the wrong
+prevents children from fooling a parent interpreter into hiding the wrong
 command, by making the current namespace be different from the global one.
 Hidden commands are explained in more detail in \fBHIDDEN COMMANDS\fR, below.
+.\" METHOD: hidden
 .TP
-\fBinterp\fR \fBhidden\fR \fIpath\fR
+\fBinterp hidden\fI path\fR
+.
 Returns a list of the names of all hidden commands in the interpreter
 identified by \fIpath\fR.
+.\" METHOD: invokehidden
 .TP
-\fBinterp\fR \fBinvokehidden\fR \fIpath\fR ?\fI\-option ...\fR? \fIhiddenCmdName\fR ?\fIarg ...\fR?
+\fBinterp invokehidden\fI path\fR ?\fI\-option ...\fR? \fIhiddenCmdName\fR ?\fIarg ...\fR?
+.
 Invokes the hidden command \fIhiddenCmdName\fR with the arguments supplied
 in the interpreter denoted by \fIpath\fR. No substitutions or evaluation
 are applied to the arguments. Three \fI\-option\fRs are supported, all
@@ -275,12 +336,23 @@ The \fB\-\|\-\fR flag allows the \fIhiddenCmdName\fR argument to start with a
 character, and is otherwise unnecessary.
 If both the \fB\-namespace\fR and \fB\-global\fR flags are present, the
 \fB\-namespace\fR flag is ignored.
+.RS
+.PP
 Note that the hidden command will be executed (by default) in the
 current context stack frame of the \fIpath\fR interpreter.
+.PP
 Hidden commands are explained in more detail in \fBHIDDEN COMMANDS\fR, below.
+.RE
+.\" METHOD: issafe
 .TP
-\fBinterp\fR \fBlimit\fR \fIpath\fR \fIlimitType\fR ?\fI\-option\fR? ?\fIvalue\fR \fI...\fR?
-.VS 8.5
+\fBinterp issafe\fR ?\fIpath\fR?
+.
+Returns \fB1\fR if the interpreter identified by the specified \fIpath\fR
+is safe, \fB0\fR otherwise.
+.\" METHOD: limit
+.TP
+\fBinterp limit\fI path limitType\fR ?\fI\-option\fR? ?\fIvalue ...\fR?
+.
 Sets up, manipulates and queries the configuration of the resource
 limit \fIlimitType\fR for the interpreter denoted by \fIpath\fR.  If
 no \fI\-option\fR is specified, return the current configuration of the
@@ -288,24 +360,23 @@ limit.  If \fI\-option\fR is the sole argument, return the value of that
 option.  Otherwise, a list of \fI\-option\fR/\fIvalue\fR argument pairs
 must supplied. See \fBRESOURCE LIMITS\fR below for a more detailed
 explanation of what limits and options are supported.
-.VE 8.5
-.TP
-\fBinterp issafe\fR ?\fIpath\fR?
-Returns \fB1\fR if the interpreter identified by the specified \fIpath\fR
-is safe, \fB0\fR otherwise.
+.\" METHOD: marktrusted
 .TP
-\fBinterp marktrusted\fR \fIpath\fR
+\fBinterp marktrusted\fI path\fR
+.
 Marks the interpreter identified by \fIpath\fR as trusted. Does
 not expose the hidden commands. This command can only be invoked from a
 trusted interpreter.
 The command has no effect if the interpreter identified by \fIpath\fR is
 already trusted.
+.\" METHOD: recursionlimit
 .TP
-\fBinterp\fR \fBrecursionlimit\fR \fIpath\fR ?\fInewlimit\fR?
+\fBinterp recursionlimit\fI path\fR ?\fInewlimit\fR?
+.
 Returns the maximum allowable nesting depth for the interpreter
 specified by \fIpath\fR.  If \fInewlimit\fR is specified,
 the interpreter recursion limit will be set so that nesting
-of more than \fInewlimit\fR calls to \fBTcl_Eval()\fR
+of more than \fInewlimit\fR calls to \fBTcl_Eval\fR
 and related procedures in that interpreter will return an error.
 The \fInewlimit\fR value is also returned.
 The \fInewlimit\fR value must be a positive integer between 1 and the
@@ -319,22 +390,21 @@ may get stack overflows before reaching the limit set by the command. If
 this happens, see if there is a mechanism in your system for increasing
 the maximum size of the C stack.
 .RE
+.\" METHOD: share
 .TP
-\fBinterp\fR \fBshare\fR \fIsrcPath channelId destPath\fR
-Causes the IO channel identified by \fIchannelId\fR to become shared
+\fBinterp share\fI srcPath channel destPath\fR
+.
+Causes the IO channel identified by \fIchannel\fR to become shared
 between the interpreter identified by \fIsrcPath\fR and the interpreter
 identified by \fIdestPath\fR. Both interpreters have the same permissions
 on the IO channel.
 Both interpreters must close it to close the underlying IO channel; IO
 channels accessible in an interpreter are automatically closed when an
 interpreter is destroyed.
+.\" METHOD: target
 .TP
-\fBinterp\fR \fBslaves\fR ?\fIpath\fR?
-Returns a Tcl list of the names of all the slave interpreters associated
-with the interpreter identified by \fIpath\fR. If \fIpath\fR is omitted,
-the invoking interpreter is used.
-.TP
-\fBinterp\fR \fBtarget\fR \fIpath alias\fR
+\fBinterp target\fI path alias\fR
+.
 Returns a Tcl list describing the target interpreter for an alias. The
 alias is specified with an interpreter path and source command name, just
 as in \fBinterp alias\fR above. The name of the target interpreter is
@@ -343,47 +413,57 @@ If the target interpreter for the alias is the invoking interpreter then an
 empty list is returned. If the target interpreter for the alias is not the
 invoking interpreter or one of its descendants then an error is generated.
 The target command does not have to be defined at the time of this invocation.
+.\" METHOD: transfer
 .TP
-\fBinterp\fR \fBtransfer\fR \fIsrcPath channelId destPath\fR
-Causes the IO channel identified by \fIchannelId\fR to become available in
+\fBinterp transfer\fI srcPath channel destPath\fR
+.
+Causes the IO channel identified by \fIchannel\fR to become available in
 the interpreter identified by \fIdestPath\fR and unavailable in the
 interpreter identified by \fIsrcPath\fR.
-.SH "SLAVE COMMAND"
+.SH "CHILD COMMAND"
 .PP
-For each slave interpreter created with the \fBinterp\fR command, a
-new Tcl command is created in the master interpreter with the same
+For each child interpreter created with the \fBinterp\fR command, a
+new Tcl command is created in the parent interpreter with the same
 name as the new interpreter. This command may be used to invoke
 various operations on the interpreter.  It has the following
 general form:
+.PP
 .CS
-\fIslave command \fR?\fIarg arg ...\fR?
+\fIchild command \fR?\fIarg arg ...\fR?
 .CE
-\fISlave\fR is the name of the interpreter, and \fIcommand\fR
+.PP
+\fIChild\fR is the name of the interpreter, and \fIcommand\fR
 and the \fIarg\fRs determine the exact behavior of the command.
 The valid forms of this command are:
+.\" METHOD: aliases
 .TP
-\fIslave \fBaliases\fR
+\fIchild \fBaliases\fR
+.
 Returns a Tcl list whose elements are the tokens of all the
-aliases in \fIslave\fR.  The tokens correspond to the values returned when
+aliases in \fIchild\fR.  The tokens correspond to the values returned when
 the aliases were created (which may not be the same
 as the current names of the commands).
+.\" METHOD: alias
 .TP
-\fIslave \fBalias \fIsrcToken\fR
+\fIchild \fBalias \fIsrcToken\fR
+.
 Returns a Tcl list whose elements are the \fItargetCmd\fR and
 \fIarg\fRs associated with the alias represented by \fIsrcToken\fR
 (this is the value returned when the alias was
 created; it is possible that the actual source command in the
-slave is different from \fIsrcToken\fR).
+child is different from \fIsrcToken\fR).
 .TP
-\fIslave \fBalias \fIsrcToken \fB{}\fR
-Deletes the alias for \fIsrcToken\fR in the slave interpreter.
+\fIchild \fBalias \fIsrcToken \fB{}\fR
+.
+Deletes the alias for \fIsrcToken\fR in the child interpreter.
 \fIsrcToken\fR refers to the value returned when the alias
 was created;  if the source command has been renamed, the renamed
 command will be deleted.
 .TP
-\fIslave \fBalias \fIsrcCmd targetCmd \fR?\fIarg ..\fR?
+\fIchild \fBalias \fIsrcCmd targetCmd \fR?\fIarg ..\fR?
+.
 Creates an alias such that whenever \fIsrcCmd\fR is invoked
-in \fIslave\fR, \fItargetCmd\fR is invoked in the master.
+in \fIchild\fR, \fItargetCmd\fR is invoked in the parent.
 The \fIarg\fR arguments will be passed to \fItargetCmd\fR as additional
 arguments, prepended before any arguments passed in the invocation of
 \fIsrcCmd\fR.
@@ -391,102 +471,124 @@ See \fBALIAS INVOCATION\fR below for details.
 The command returns a token that uniquely identifies the command created
 \fIsrcCmd\fR, even if the command is renamed afterwards. The token may but
 does not have to be equal to \fIsrcCmd\fR.
+.\" METHOD: bgerror
 .TP
-\fIslave \fBbgerror\fR ?\fIcmdPrefix\fR?
-.VS 8.5
-This command either gets or sets the current background error handler
-for the \fIslave\fR interpreter. If \fIcmdPrefix\fR is
-absent, the current background error handler is returned, and if it is
+\fIchild \fBbgerror\fR ?\fIcmdPrefix\fR?
+.
+This command either gets or sets the current background exception handler
+for the \fIchild\fR interpreter. If \fIcmdPrefix\fR is
+absent, the current background exception handler is returned, and if it is
 present, it is a list of words (of minimum length one) that describes
-what to set the interpreter's background error to. See the
-\fBBACKGROUND ERROR HANDLING\fR section for more details.
-.VE 8.5
+what to set the interpreter's background exception handler to. See the
+\fBBACKGROUND EXCEPTION HANDLING\fR section for more details.
+.\" METHOD: eval
 .TP
-\fIslave \fBeval \fIarg \fR?\fIarg ..\fR?
+\fIchild \fBeval \fIarg \fR?\fIarg ..\fR?
+.
 This command concatenates all of the \fIarg\fR arguments in
 the same fashion as the \fBconcat\fR command, then evaluates
-the resulting string as a Tcl script in \fIslave\fR.
+the resulting string as a Tcl script in \fIchild\fR.
 The result of this evaluation (including all \fBreturn\fR options,
 such as \fB\-errorinfo\fR and \fB\-errorcode\fR information, if an
 error occurs) is returned to the invoking interpreter.
+.RS
+.PP
 Note that the script will be executed in the current context stack frame
-of \fIslave\fR; this is so that the implementations (in a master
-interpreter) of aliases in a slave interpreter can execute scripts in
-the slave that find out information about the slave's current state
+of \fIchild\fR; this is so that the implementations (in a parent
+interpreter) of aliases in a child interpreter can execute scripts in
+the child that find out information about the child's current state
 and stack frame.
+.RE
+.\" METHOD: expose
 .TP
-\fIslave \fBexpose \fIhiddenName \fR?\fIexposedCmdName\fR?
+\fIchild \fBexpose \fIhiddenName \fR?\fIexposedCmdName\fR?
+.
 This command exposes the hidden command \fIhiddenName\fR, eventually bringing
 it back under a new \fIexposedCmdName\fR name (this name is currently
 accepted only if it is a valid global name space name without any ::),
-in \fIslave\fR.
+in \fIchild\fR.
 If an exposed command with the targeted name already exists, this command
 fails.
 For more details on hidden commands, see \fBHIDDEN COMMANDS\fR, below.
+.\" METHOD: hide
 .TP
-\fIslave \fBhide \fIexposedCmdName\fR ?\fIhiddenCmdName\fR?
+\fIchild \fBhide \fIexposedCmdName\fR ?\fIhiddenCmdName\fR?
+.
 This command hides the exposed command \fIexposedCmdName\fR, renaming it to
 the hidden command \fIhiddenCmdName\fR, or keeping the same name if the
-argument is not given, in the \fIslave\fR interpreter.
+argument is not given, in the \fIchild\fR interpreter.
 If a hidden command with the targeted name already exists, this command
 fails.
 Currently both \fIexposedCmdName\fR and \fIhiddenCmdName\fR can
 not contain namespace qualifiers, or an error is raised.
 Commands to be hidden are looked up in the global
 namespace even if the current namespace is not the global one. This
-prevents slaves from fooling a master interpreter into hiding the wrong
+prevents children from fooling a parent interpreter into hiding the wrong
 command, by making the current namespace be different from the global one.
 For more details on hidden commands, see \fBHIDDEN COMMANDS\fR, below.
+.\" METHOD: hidden
 .TP
-\fIslave \fBhidden\fR
-Returns a list of the names of all hidden commands in \fIslave\fR.
+\fIchild \fBhidden\fR
+.
+Returns a list of the names of all hidden commands in \fIchild\fR.
+.\" METHOD: invokehidden
 .TP
-\fIslave \fBinvokehidden\fR ?\fI\-option ...\fR? \fIhiddenName \fR?\fIarg ..\fR?
+\fIchild \fBinvokehidden\fR ?\fI\-option ...\fR? \fIhiddenName \fR?\fIarg ..\fR?
+.
 This command invokes the hidden command \fIhiddenName\fR with the
-supplied arguments, in \fIslave\fR. No substitutions or evaluations are
+supplied arguments, in \fIchild\fR. No substitutions or evaluations are
 applied to the arguments. Three \fI\-option\fRs are supported, all
 of which start with \fB\-\fR: \fB\-namespace\fR (which takes a single
 argument afterwards, \fInsName\fR), \fB\-global\fR, and \fB\-\|\-\fR.
 If the \fB\-namespace\fR flag is given, the hidden command is invoked in
-the specified namespace in the slave.
+the specified namespace in the child.
 If the \fB\-global\fR flag is given, the command is invoked at the global
-level in the slave; otherwise it is invoked at the current call frame and
+level in the child; otherwise it is invoked at the current call frame and
 can access local variables in that or outer call frames.
 The \fB\-\|\-\fR flag allows the \fIhiddenCmdName\fR argument to start with a
 .QW \-
 character, and is otherwise unnecessary.
 If both the \fB\-namespace\fR and \fB\-global\fR flags are given, the
 \fB\-namespace\fR flag is ignored.
+.RS
+.PP
 Note that the hidden command will be executed (by default) in the
-current context stack frame of \fIslave\fR.
-For more details on hidden commands,
-see \fBHIDDEN COMMANDS\fR, below.
+current context stack frame of \fIchild\fR.
+.PP
+For more details on hidden commands, see \fBHIDDEN COMMANDS\fR, below.
+.RE
+.\" METHOD: issafe
 .TP
-\fIslave \fBissafe\fR
-Returns  \fB1\fR if the slave interpreter is safe, \fB0\fR otherwise.
+\fIchild \fBissafe\fR
+.
+Returns \fB1\fR if the child interpreter is safe, \fB0\fR otherwise.
+.\" METHOD: limit
 .TP
-\fIslave \fBlimit\fR \fIlimitType\fR ?\fI\-option\fR? ?\fIvalue\fR \fI...\fR?
-.VS 8.5
+\fIchild \fBlimit\fI limitType\fR ?\fI\-option\fR? ?\fIvalue ...\fR?
+.
 Sets up, manipulates and queries the configuration of the resource
-limit \fIlimitType\fR for the slave interpreter.  If no \fI\-option\fR
+limit \fIlimitType\fR for the child interpreter.  If no \fI\-option\fR
 is specified, return the current configuration of the limit.  If
 \fI\-option\fR is the sole argument, return the value of that option.
 Otherwise, a list of \fI\-option\fR/\fIvalue\fR argument pairs must
 supplied. See \fBRESOURCE LIMITS\fR below for a more detailed explanation of
 what limits and options are supported.
-.VE 8.5
+.\" METHOD: marktrusted
 .TP
-\fIslave \fBmarktrusted\fR
-Marks the slave interpreter as trusted. Can only be invoked by a
+\fIchild \fBmarktrusted\fR
+.
+Marks the child interpreter as trusted. Can only be invoked by a
 trusted interpreter. This command does not expose any hidden
-commands in the slave interpreter. The command has no effect if the slave
+commands in the child interpreter. The command has no effect if the child
 is already trusted.
+.\" METHOD: recursionlimit
 .TP
-\fIslave\fR \fBrecursionlimit\fR ?\fInewlimit\fR?
-Returns the maximum allowable nesting depth for the \fIslave\fR interpreter.
-If \fInewlimit\fR is specified, the recursion limit in \fIslave\fR will be
+\fIchild \fBrecursionlimit\fR ?\fInewlimit\fR?
+.
+Returns the maximum allowable nesting depth for the \fIchild\fR interpreter.
+If \fInewlimit\fR is specified, the recursion limit in \fIchild\fR will be
 set so that nesting of more than \fInewlimit\fR calls to \fBTcl_Eval()\fR
-and related procedures in \fIslave\fR will return an error.
+and related procedures in \fIchild\fR will return an error.
 The \fInewlimit\fR value is also returned.
 The \fInewlimit\fR value must be a positive integer between 1 and the
 maximum value of a non-long integer on the platform.
@@ -510,14 +612,14 @@ For example, commands to create files on disk are removed, and the
 \fBexec\fR command is removed, since it could be used to cause damage
 through subprocesses.
 Limited access to these facilities can be provided, by creating
-aliases to the master interpreter which check their arguments carefully
+aliases to the parent interpreter which check their arguments carefully
 and provide restricted access to a safe subset of facilities.
 For example, file creation might be allowed in a particular subdirectory
 and subprocess invocation might be allowed for a carefully selected and
 fixed set of programs.
 .PP
 A safe interpreter is created by specifying the \fB\-safe\fR switch
-to the \fBinterp create\fR command.  Furthermore, any slave created
+to the \fBinterp create\fR command.  Furthermore, any child created
 by a safe interpreter will also be safe.
 .PP
 A safe interpreter is created with exactly the following set of
@@ -532,16 +634,17 @@ built-in commands:
 \fBflush\fR	\fBfor\fR	\fBforeach\fR	\fBformat\fR
 \fBgets\fR	\fBglobal\fR	\fBif\fR	\fBincr\fR
 \fBinfo\fR	\fBinterp\fR	\fBjoin\fR	\fBlappend\fR
-\fBlassign\fR	\fBlindex\fR	\fBlinsert\fR	\fBlist\fR
-\fBllength\fR	\fBlrange\fR	\fBlrepeat\fR	\fBlreplace\fR
-\fBlsearch\fR	\fBlset\fR	\fBlsort\fR	\fBnamespace\fR
-\fBpackage\fR	\fBpid\fR	\fBproc\fR	\fBputs\fR
-\fBread\fR	\fBregexp\fR	\fBregsub\fR	\fBrename\fR
-\fBreturn\fR	\fBscan\fR	\fBseek\fR	\fBset\fR
-\fBsplit\fR	\fBstring\fR	\fBsubst\fR	\fBswitch\fR
-\fBtell\fR	\fBtime\fR	\fBtrace\fR	\fBunset\fR
-\fBupdate\fR	\fBuplevel\fR	\fBupvar\fR	\fBvariable\fR
-\fBvwait\fR	\fBwhile\fR
+\fBlassign\fR	\fBledit\fR	\fBlindex\fR	\fBlinsert\fR
+\fBlist\fR	\fBllength\fR	\fBlrange\fR	\fBlrepeat\fR
+\fBlreplace\fR	\fBlsearch\fR	\fBlseq\fR      \fBlset\fR
+\fBlsort\fR     \fBnamespace\fR	\fBpackage\fR	\fBpid\fR
+\fBproc\fR      \fBputs\fR	\fBread\fR	\fBregexp\fR
+\fBregsub\fR	\fBrename\fR	\fBreturn\fR	\fBscan\fR
+\fBseek\fR	\fBset\fR	\fBsplit\fR	\fBstring\fR
+\fBsubst\fR	\fBswitch\fR	\fBtell\fR	\fBtime\fR
+\fBtrace\fR	\fBunset\fR	\fBupdate\fR	\fBuplevel\fR
+\fBupvar\fR	\fBvariable\fR	\fBvwait\fR	\fBwhile\fR
+\fBzlib\fR
 .DE
 The following commands are hidden by \fBinterp create\fR when it
 creates a safe interpreter:
@@ -550,7 +653,7 @@ creates a safe interpreter:
 \fBcd\fR	\fBencoding\fR	\fBexec\fR	\fBexit\fR
 \fBfconfigure\fR	\fBfile\fR	\fBglob\fR	\fBload\fR
 \fBopen\fR	\fBpwd\fR	\fBsocket\fR	\fBsource\fR
-\fBunload\fR
+\fBunload\fR	\fBzipfs\fR
 .DE
 These commands can be recreated later as Tcl procedures or aliases, or
 re-exposed by \fBinterp expose\fR.
@@ -604,15 +707,15 @@ including itself.
 .SH "ALIAS INVOCATION"
 .PP
 The alias mechanism has been carefully designed so that it can
-be used safely when an untrusted script is executing
-in a safe slave and the target of the alias is a trusted
-master.  The most important thing in guaranteeing safety is to
-ensure that information passed from the slave to the master is
-never evaluated or substituted in the master;  if this were to
-occur, it would enable an evil script in the slave to invoke
-arbitrary functions in the master, which would compromise security.
-.PP
-When the source for an alias is invoked in the slave interpreter, the
+be used safely in an untrusted script which is being executed in a
+safe interpreter even if the target of the alias is not a safe
+interpreter.  The most important thing in guaranteeing safety is to
+ensure that information passed from the child to the parent is
+never evaluated or substituted in the parent;  if this were to
+occur, it would enable an evil script in the child to invoke
+arbitrary functions in the parent, which would compromise security.
+.PP
+When the source for an alias is invoked in the child interpreter, the
 usual Tcl substitutions are performed when parsing that command.
 These substitutions are carried out in the source interpreter just
 as they would be for any other command invoked in that interpreter.
@@ -639,8 +742,8 @@ the alias's source command is parsed in the source interpreter.
 When writing the \fItargetCmd\fRs for aliases in safe interpreters,
 it is very important that the arguments to that command never be
 evaluated or substituted, since this would provide an escape
-mechanism whereby the slave interpreter could execute arbitrary
-code in the master.  This in turn would compromise the security
+mechanism whereby the child interpreter could execute arbitrary
+code in the parent.  This in turn would compromise the security
 of the system.
 .SH "HIDDEN COMMANDS"
 .PP
@@ -667,28 +770,28 @@ invoke\fR. Hidden commands and exposed commands reside in separate name
 spaces. It is possible to define a hidden command and an exposed command by
 the same name within one interpreter.
 .PP
-Hidden commands in a slave interpreter can be invoked in the body of
-procedures called in the master during alias invocation. For example, an
-alias for \fBsource\fR could be created in a slave interpreter. When it is
-invoked in the slave interpreter, a procedure is called in the master
+Hidden commands in a child interpreter can be invoked in the body of
+procedures called in the parent during alias invocation. For example, an
+alias for \fBsource\fR could be created in a child interpreter. When it is
+invoked in the child interpreter, a procedure is called in the parent
 interpreter to check that the operation is allowable (e.g. it asks to
-source a file that the slave interpreter is allowed to access). The
-procedure then it invokes the hidden \fBsource\fR command in the slave
+source a file that the child interpreter is allowed to access). The
+procedure then it invokes the hidden \fBsource\fR command in the child
 interpreter to actually source in the contents of the file. Note that two
-commands named \fBsource\fR exist in the slave interpreter: the alias, and
+commands named \fBsource\fR exist in the child interpreter: the alias, and
 the hidden command.
 .PP
-Because a master interpreter may invoke a hidden command as part of
+Because a parent interpreter may invoke a hidden command as part of
 handling an alias invocation, great care must be taken to avoid evaluating
 any arguments passed in through the alias invocation.
-Otherwise, malicious slave interpreters could cause a trusted master
+Otherwise, malicious child interpreters could cause a trusted parent
 interpreter to execute dangerous commands on their behalf. See the section
 on \fBALIAS INVOCATION\fR for a more complete discussion of this topic.
 To help avoid this problem, no substitutions or evaluations are
 applied to arguments of \fBinterp invokehidden\fR.
 .PP
 Safe interpreters are not allowed to invoke hidden commands in themselves
-or in their descendants. This prevents safe slaves from gaining access to
+or in their descendants. This prevents them from gaining access to
 hidden functionality in themselves or their descendants.
 .PP
 The set of hidden commands in an interpreter can be manipulated by a trusted
@@ -707,13 +810,12 @@ qualifiers, and you must first rename a command in a namespace to the
 global namespace before you can hide it.
 Commands to be hidden by \fBinterp hide\fR are looked up in the global
 namespace even if the current namespace is not the global one. This
-prevents slaves from fooling a master interpreter into hiding the wrong
+prevents children from fooling a parent interpreter into hiding the wrong
 command, by making the current namespace be different from the global one.
 .SH "RESOURCE LIMITS"
-.VS 8.5
 .PP
 Every interpreter has two kinds of resource limits that may be imposed by any
-master interpreter upon its slaves. Command limits (of type \fBcommand\fR)
+parent interpreter upon its children. Command limits (of type \fBcommand\fR)
 restrict the total number of Tcl commands that may be executed by an
 interpreter (as can be inspected via the \fBinfo cmdcount\fR command), and
 time limits (of type \fBtime\fR) place a limit by which execution within the
@@ -722,7 +824,7 @@ interpreter must complete. Note that time limits are expressed as
 \fBafter\fR) because they may be modified after creation.
 .PP
 When a limit is exceeded for an interpreter, first any handler callbacks
-defined by master interpreters are called. If those callbacks increase or
+defined by parent interpreters are called. If those callbacks increase or
 remove the limit, execution within the (previously) limited interpreter
 continues. If the limit is still in force, an error is generated at that point
 and normal processing of errors within the interpreter (by the \fBcatch\fR
@@ -735,85 +837,93 @@ catch and handle.
 Every limit has a number of options associated with it, some of which are
 common across all kinds of limits, and others of which are particular to the
 kind of limit.
-.VE 8.5
+.\" OPTION: -command
 .TP
 \fB\-command\fR
-.VS 8.5
+.
 This option (common for all limit types) specifies (if non-empty) a Tcl script
 to be executed in the global namespace of the interpreter reading and writing
 the option when the particular limit in the limited interpreter is exceeded.
 The callback may modify the limit on the interpreter if it wishes the limited
-interpreter to continue executing. If the callback generates an error, it is
-reported through the background error mechanism (see \fBBACKGROUND ERROR
-HANDLING\fR). Note that the callbacks defined by one interpreter are
+interpreter to continue executing. If the callback generates an exception, it
+is reported through the background exception mechanism (see
+\fBBACKGROUND EXCEPTION HANDLING\fR).
+.RS
+.PP
+Note that the callbacks defined by one interpreter are
 completely isolated from the callbacks defined by another, and that the order
 in which those callbacks are called is undefined.
-.VE 8.5
+.RE
+.\" OPTION: -granularity
 .TP
 \fB\-granularity\fR
-.VS 8.5
+.
 This option (common for all limit types) specifies how frequently (out of the
 points when the Tcl interpreter is in a consistent state where limit checking
 is possible) that the limit is actually checked. This allows the tuning of how
 frequently a limit is checked, and hence how often the limit-checking overhead
 (which may be substantial in the case of time limits) is incurred.
-.VE 8.5
+.\" OPTION: -milliseconds
 .TP
 \fB\-milliseconds\fR
-.VS 8.5
+.
 This option specifies the number of milliseconds after the moment defined in
 the \fB\-seconds\fR option that the time limit will fire. It should only ever
 be specified in conjunction with the \fB\-seconds\fR option (whether it was
 set previously or is being set this invocation.)
-.VE 8.5
+.\" OPTION: -seconds
 .TP
 \fB\-seconds\fR
-.VS 8.5
+.
 This option specifies the number of seconds after the epoch (see \fBclock
 seconds\fR) that the time limit for the interpreter will be triggered. The
 limit will be triggered at the start of the second unless specified at a
 sub-second level using the \fB\-milliseconds\fR option. This option may be the
 empty string, which indicates that a time limit is not set for the
 interpreter.
-.VE 8.5
+.\" OPTION: -value
 .TP
 \fB\-value\fR
-.VS 8.5
+.
 This option specifies the number of commands that the interpreter may execute
 before triggering the command limit. This option may be the empty string,
 which indicates that a command limit is not set for the interpreter.
 .PP
-Where an interpreter with a resource limit set on it creates a slave
-interpreter, that slave interpreter will have resource limits imposed on it
-that are at least as restrictive as the limits on the creating master
-interpreter. If the master interpreter of the limited master wishes to relax
+Where an interpreter with a resource limit set on it creates a child
+interpreter, that child interpreter will have resource limits imposed on it
+that are at least as restrictive as the limits on the creating parent
+interpreter. If the parent interpreter of the limited parent wishes to relax
 these conditions, it should hide the \fBinterp\fR command in the child and
 then use aliases and the \fBinterp invokehidden\fR subcommand to provide such
-access as it chooses to the \fBinterp\fR command to the limited master as
+access as it chooses to the \fBinterp\fR command to the limited parent as
 necessary.
-.SH "BACKGROUND ERROR HANDLING"
+.SH "BACKGROUND EXCEPTION HANDLING"
 .PP
-When an error happens in a situation where it cannot be reported directly up
+When an exception happens in a situation where it cannot be reported directly up
 the stack (e.g. when processing events in an \fBupdate\fR or \fBvwait\fR call)
-the error is instead reported through the background error handling mechanism.
-Every interpreter has a background error handler registered; the default error
+the exception is instead reported through the background exception handling
+mechanism. Every interpreter has a background exception handler registered;
+the default exception
 handler arranges for the \fBbgerror\fR command in the interpreter's global
-namespace to be called, but other error handlers may be installed and process
-background errors in substantially different ways.
-.PP
-A background error handler consists of a non-empty list of words to which will
-be appended two further words at invocation time. The first word will be the
-error message string, and the second will a dictionary of return options (this
-is also the sort of information that can be obtained by trapping a normal
-error using \fBcatch\fR of course.) The resulting list will then be executed
+namespace to be called, but other exception handlers may be installed and process
+background exceptions in substantially different ways.
+.PP
+A background exception handler consists of a non-empty list of words to which
+will be appended two further words at invocation time. The first word will be the
+interpreter result at time of the exception, typically an error message,
+and the second will be the dictionary of return options at the time of
+the exception.  These are the same values that \fBcatch\fR can capture
+when it controls script evaluation in a non-background situation.
+The resulting list will then be executed
 in the interpreter's global namespace without further substitutions being
 performed.
-.VE 8.5
 .SH CREDITS
 The safe interpreter mechanism is based on the Safe-Tcl prototype implemented
 by Nathaniel Borenstein and Marshall Rose.
 .SH EXAMPLES
+.PP
 Creating and using an alias for a command in the current interpreter:
+.PP
 .CS
 \fBinterp alias\fR {} getIndex {} lsearch {alpha beta gamma delta}
 set idx [getIndex delta]
@@ -821,32 +931,36 @@ set idx [getIndex delta]
 .PP
 Executing an arbitrary command in a safe interpreter where every
 invocation of \fBlappend\fR is logged:
+.PP
 .CS
 set i [\fBinterp create\fR -safe]
 \fBinterp hide\fR $i lappend
 \fBinterp alias\fR $i lappend {} loggedLappend $i
 proc loggedLappend {i args} {
-   puts "logged invocation of lappend $args"
-   \fBinterp invokehidden\fR $i lappend {*}$args
+    puts "logged invocation of lappend $args"
+    \fBinterp invokehidden\fR $i lappend {*}$args
 }
 \fBinterp eval\fR $i $someUntrustedScript
 .CE
 .PP
-.VS 8.5
 Setting a resource limit on an interpreter so that an infinite loop
 terminates.
+.PP
 .CS
 set i [\fBinterp create\fR]
 \fBinterp limit\fR $i command -value 1000
 \fBinterp eval\fR $i {
-   set x 0
-   while {1} {
-      puts "Counting up... [incr x]"
-   }
+    set x 0
+    while {1} {
+        puts "Counting up... [incr x]"
+    }
 }
 .CE
-.VE 8.5
 .SH "SEE ALSO"
-bgerror(n), load(n), safe(n), Tcl_CreateSlave(3)
+bgerror(n), load(n), safe(n),
+Tcl_CreateChild(3), Tcl_Eval(3), Tcl_BackgroundException(3)
 .SH KEYWORDS
-alias, master interpreter, safe interpreter, slave interpreter
+alias, parent interpreter, safe interpreter, child interpreter
+'\"Local Variables:
+'\"mode: nroff
+'\"End:
diff --git a/doc/join.n b/doc/join.n
index 270f9f3..7dcde98 100644
--- a/doc/join.n
+++ b/doc/join.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH join n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,7 +14,6 @@ join \- Create a string by joining together list elements
 .SH SYNOPSIS
 \fBjoin \fIlist \fR?\fIjoinString\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 The \fIlist\fR argument must be a valid Tcl list.
@@ -23,7 +22,9 @@ formed by joining all of the elements of \fIlist\fR together with
 \fIjoinString\fR separating each adjacent pair of elements.
 The \fIjoinString\fR argument defaults to a space character.
 .SH EXAMPLES
+.PP
 Making a comma-separated list:
+.PP
 .CS
 set data {1 2 3 4 5}
 \fBjoin\fR $data ", "
@@ -31,14 +32,17 @@ set data {1 2 3 4 5}
 .CE
 .PP
 Using \fBjoin\fR to flatten a list by a single level:
+.PP
 .CS
 set data {1 {2 3} 4 {5 {6 7} 8}}
 \fBjoin\fR $data
      \fB\(-> 1 2 3 4 5 {6 7} 8\fR
 .CE
-
 .SH "SEE ALSO"
 list(n), lappend(n), split(n)
-
 .SH KEYWORDS
 element, join, list, separator
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/lappend.n b/doc/lappend.n
index 5619272..3fbda79 100644
--- a/doc/lappend.n
+++ b/doc/lappend.n
@@ -5,7 +5,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH lappend n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -15,7 +15,6 @@ lappend \- Append list elements onto a variable
 .SH SYNOPSIS
 \fBlappend \fIvarName \fR?\fIvalue value value ...\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 This command treats the variable given by \fIvarName\fR as a list
@@ -23,6 +22,12 @@ and appends each of the \fIvalue\fR arguments to that list as a separate
 element, with spaces between elements.
 If \fIvarName\fR does not exist, it is created as a list with elements
 given by the \fIvalue\fR arguments.
+.VS TIP508
+If \fIvarName\fR indicate an element that does not exist of an array that has
+a default value set, list that is comprised of the default value with all the
+\fIvalue\fR arguments appended as elements will be stored in the array
+element.
+.VE TIP508
 \fBLappend\fR is similar to \fBappend\fR except that the \fIvalue\fRs
 are appended as list elements rather than raw text.
 This command provides a relatively efficient way to build up
@@ -32,7 +37,9 @@ is much more efficient than
 .QW "\fBset a [concat $a [list $b]]\fR"
 when \fB$a\fR is long.
 .SH EXAMPLE
+.PP
 Using \fBlappend\fR to build up a list of numbers.
+.PP
 .CS
 % set var 1
 1
@@ -41,10 +48,13 @@ Using \fBlappend\fR to build up a list of numbers.
 % \fBlappend\fR var 3 4 5
 1 2 3 4 5
 .CE
-
 .SH "SEE ALSO"
-list(n), lindex(n), linsert(n), llength(n), lset(n),
-lsort(n), lrange(n)
-
+list(n), lassign(n), ledit(n), lindex(n), linsert(n), llength(n),
+lmap(n), lpop(n), lrange(n), lremove(n), lrepeat(n), lreplace(n),
+lreverse(n), lsearch(n), lseq(n), lset(n), lsort(n)
 .SH KEYWORDS
 append, element, list, variable
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/lassign.n b/doc/lassign.n
index 7b3bcdc..d23509a 100644
--- a/doc/lassign.n
+++ b/doc/lassign.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH lassign n 8.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,9 +12,8 @@
 .SH NAME
 lassign \- Assign list elements to variables
 .SH SYNOPSIS
-\fBlassign \fIlist varName \fR?\fIvarName ...\fR?
+\fBlassign \fIlist \fR?\fIvarName ...\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 This command treats the value \fIlist\fR as a list and assigns
@@ -24,32 +23,40 @@ than list elements, the remaining variables are set to the empty
 string.  If there are more list elements than variables, a list of
 unassigned elements is returned.
 .SH EXAMPLES
+.PP
 An illustration of how multiple assignment works, and what happens
 when there are either too few or too many elements.
+.PP
 .CS
-lassign {a b c} x y z       ;# Empty return
+\fBlassign\fR {a b c} x y z       ;# Empty return
 puts $x                     ;# Prints "a"
 puts $y                     ;# Prints "b"
 puts $z                     ;# Prints "c"
 
-lassign {d e} x y z         ;# Empty return
+\fBlassign\fR {d e} x y z         ;# Empty return
 puts $x                     ;# Prints "d"
 puts $y                     ;# Prints "e"
 puts $z                     ;# Prints ""
 
-lassign {f g h i} x y       ;# Returns "h i"
+\fBlassign\fR {f g h i} x y       ;# Returns "h i"
 puts $x                     ;# Prints "f"
 puts $y                     ;# Prints "g"
 .CE
+.PP
 The \fBlassign\fR command has other uses.  It can be used to create
 the analogue of the
 .QW shift
 command in many shell languages like this:
+.PP
 .CS
-set ::argv [lassign $::argv argumentToReadOff]
+set ::argv [\fBlassign\fR $::argv argumentToReadOff]
 .CE
 .SH "SEE ALSO"
-lindex(n), list(n), lset(n), set(n)
-
+list(n), lappend(n), ledit(n), lindex(n), linsert(n), llength(n),
+lmap(n), lpop(n), lrange(n), lremove(n), lrepeat(n), lreplace(n),
+lreverse(n), lsearch(n), lseq(n), lset(n), lsort(n)
 .SH KEYWORDS
 assign, element, list, multiple, set, variable
+'\"Local Variables:
+'\"mode: nroff
+'\"End:
diff --git a/doc/ledit.n b/doc/ledit.n
new file mode 100644
index 0000000..eebf3e8
--- /dev/null
+++ b/doc/ledit.n
@@ -0,0 +1,93 @@
+'\"
+'\" Copyright (c) 2022 Ashok P. Nadkarni <apnmbx-public@yahoo.com>.  All rights reserved.
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH ledit n 9.0 Tcl "Tcl Built-In Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+ledit \- Replace elements of a list stored in variable
+.SH SYNOPSIS
+\fBledit \fIlistVar first last \fR?\fIvalue value ...\fR?
+.BE
+.SH DESCRIPTION
+.PP
+The command fetches the list value in variable \fIlistVar\fR and replaces the
+elements in the range given by indices \fIfirst\fR to \fIlast\fR (inclusive)
+with the \fIvalue\fR arguments. The resulting list is then stored back in
+\fIlistVar\fR and returned as the result of the command.
+.PP
+Arguments \fIfirst\fR and \fIlast\fR are index values specifying the first and
+last elements of the range to replace. They are interpreted
+the same as index values for the command \fBstring index\fR,
+supporting simple index arithmetic and indices relative to the
+end of the list. The index \fB0\fR refers to the first element of the
+list, and \fBend\fR refers to the last element of the list.
+(Unlike with \fBlpop\fR, \fBlset\fR, and \fBlindex\fR, indices into sublists
+are not supported.)
+.PP
+If either \fIfirst\fR or \fIlast\fR is less than zero, it is considered to
+refer to the position before the first element of the list. This allows
+elements to be prepended.
+.PP
+If either \fIfirst\fR or \fIlast\fR indicates a position greater than the
+index of the last element of the list, it is treated as if it is an
+index one greater than the last element. This allows elements to be appended.
+.PP
+If \fIlast\fR is less than \fIfirst\fR, then any specified elements
+will be inserted into the list before the element specified by \fIfirst\fR
+with no elements being deleted.
+.PP
+The \fIvalue\fR arguments specify zero or more new elements to
+be added to the list in place of those that were deleted.
+Each \fIvalue\fR argument will become a separate element of
+the list.  If no \fIvalue\fR arguments are specified, the elements
+between \fIfirst\fR and \fIlast\fR are simply deleted.
+.SH EXAMPLES
+.PP
+Prepend to a list.
+.PP
+.CS
+set lst {c d e f g}
+      \fI\(-> c d e f g\fR
+\fBledit\fR lst -1 -1 a b
+      \fI\(-> a b c d e f g\fR
+.CE
+.PP
+Append to the list.
+.PP
+.CS
+\fBledit\fR lst end+1 end+1 h i
+      \fI\(-> a b c d e f g h i\fR
+.CE
+.PP
+Delete third and fourth elements.
+.PP
+.CS
+\fBledit\fR lst 2 3
+      \fI\(-> a b e f g h i\fR
+.CE
+.PP
+Replace two elements with three.
+.PP
+.CS
+\fBledit\fR lst 2 3 x y z
+      \fI\(-> a b x y z g h i\fR
+set lst
+      \fI\(-> a b x y z g h i\fR
+.CE
+.PP
+.SH "SEE ALSO"
+list(n), lappend(n), lassign(n), lindex(n), linsert(n), llength(n),
+lmap(n), lpop(n), lrange(n), lremove(n), lrepeat(n), lreplace(n),
+lreverse(n), lsearch(n), lseq(n), lset(n), lsort(n),
+string(n)
+.SH KEYWORDS
+element, list, replace
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/library.n b/doc/library.n
index c86da3e..5336e13 100644
--- a/doc/library.n
+++ b/doc/library.n
@@ -9,14 +9,13 @@
 .so man.macros
 .BS
 .SH NAME
-auto_execok, auto_import, auto_load, auto_mkindex, auto_mkindex_old, auto_qualify, auto_reset, tcl_findLibrary, parray, tcl_endOfWord, tcl_startOfNextWord, tcl_startOfPreviousWord, tcl_wordBreakAfter, tcl_wordBreakBefore \- standard library of Tcl procedures
+auto_execok, auto_import, auto_load, auto_mkindex, auto_qualify, auto_reset, foreachLine, parray, readFile, tcl_findLibrary, tcl_endOfWord, tcl_nonwordchars, tcl_startOfNextWord, tcl_startOfPreviousWord, tcl_wordBreakAfter, tcl_wordBreakBefore, tcl_wordchars, writeFile \- standard library of Tcl procedures
 .SH SYNOPSIS
 .nf
 \fBauto_execok \fIcmd\fR
 \fBauto_import \fIpattern\fR
 \fBauto_load \fIcmd\fR
 \fBauto_mkindex \fIdir pattern pattern ...\fR
-\fBauto_mkindex_old \fIdir pattern pattern ...\fR
 \fBauto_qualify \fIcommand namespace\fR
 \fBauto_reset\fR
 \fBtcl_findLibrary \fIbasename version patch initScript enVarName varName\fR
@@ -26,6 +25,12 @@ auto_execok, auto_import, auto_load, auto_mkindex, auto_mkindex_old, auto_qualif
 \fBtcl_startOfPreviousWord \fIstr start\fR
 \fBtcl_wordBreakAfter \fIstr start\fR
 \fBtcl_wordBreakBefore \fIstr start\fR
+.VS TIP670
+\fBforeachLine \fIfilename varName body\fR
+\fBreadFile \fIfilename\fR ?\fBtext\fR|\fBbinary\fR?
+\fBwriteFile \fIfilename\fR ?\fBtext\fR|\fBbinary\fR? \fIcontents\fR
+.VE TIP670
+.fi
 .BE
 .SH INTRODUCTION
 .PP
@@ -39,14 +44,16 @@ its own library of support procedures as well;  the location of this
 library is normally given by the value of the \fB$\fIapp\fB_library\fR
 global variable, where \fIapp\fR is the name of the application.
 For example, the location of the Tk library is kept in the variable
-\fB$tk_library\fR.
+\fBtk_library\fR.
 .PP
 To access the procedures in the Tcl library, an application should
 source the file \fBinit.tcl\fR in the library, for example with
 the Tcl command
+.PP
 .CS
 \fBsource [file join [info library] init.tcl]\fR
 .CE
+.PP
 If the library procedure \fBTcl_Init\fR is invoked from an application's
 \fBTcl_AppInit\fR procedure, this happens automatically.
 The code in \fBinit.tcl\fR will define the \fBunknown\fR procedure
@@ -55,8 +62,10 @@ the auto-load mechanism defined below.
 .SH "COMMAND PROCEDURES"
 .PP
 The following procedures are provided in the Tcl library:
+.\" COMMAND: auto_execok
 .TP
 \fBauto_execok \fIcmd\fR
+.
 Determines whether there is an executable file or shell builtin
 by the name \fIcmd\fR.  If so, it returns a list of arguments to be
 passed to \fBexec\fR to execute the executable file or shell builtin
@@ -69,8 +78,31 @@ remembers information about previous searches in an array named
 \fBauto_execs\fR;  this avoids the path search in future calls for the
 same \fIcmd\fR.  The command \fBauto_reset\fR may be used to force
 \fBauto_execok\fR to forget its cached information.
+.RS
+.PP
+For example, to run the \fIumask\fR shell builtin on Linux, you would do:
+.PP
+.CS
+exec {*}[\fBauto_execok\fR umask]
+.CE
+.PP
+To run the \fIDIR\fR shell builtin on Windows, you would do:
+.PP
+.CS
+exec {*}[\fBauto_execok\fR dir]
+.CE
+.PP
+To discover if there is a \fIfrobnicate\fR binary on the user's PATH,
+you would do:
+.PP
+.CS
+set mayFrob [expr {[llength [\fBauto_execok\fR frobnicate]] > 0}]
+.CE
+.RE
+.\" COMMAND: auto_import
 .TP
 \fBauto_import \fIpattern\fR
+.
 \fBAuto_import\fR is invoked during \fBnamespace import\fR to see if
 the imported commands specified by \fIpattern\fR reside in an
 autoloaded library.  If so, the commands are loaded so that they will
@@ -78,13 +110,19 @@ be available to the interpreter for creating the import links.  If the
 commands do not reside in an autoloaded library, \fBauto_import\fR
 does nothing.  The pattern matching is performed according to the
 matching rules of \fBnamespace import\fR.
+.RS
+.PP
+It is not normally necessary to call this command directly.
+.RE
+.\" COMMAND: auto_load
 .TP
 \fBauto_load \fIcmd\fR
+.
 This command attempts to load the definition for a Tcl command named
 \fIcmd\fR.  To do this, it searches an \fIauto-load path\fR, which is
 a list of one or more directories.  The auto-load path is given by the
-global variable \fB$auto_path\fR if it exists.  If there is no
-\fB$auto_path\fR variable, then the TCLLIBPATH environment variable is
+global variable \fBauto_path\fR if it exists.  If there is no
+\fBauto_path\fR variable, then the \fBTCLLIBPATH\fR environment variable is
 used, if it exists.  Otherwise the auto-load path consists of just the
 Tcl library directory.  Within each directory in the auto-load path
 there must be a file \fBtclIndex\fR that describes one or more
@@ -103,8 +141,15 @@ the array \fBauto_index\fR;  future calls to \fBauto_load\fR check for
 cached index information may be deleted with the command
 \fBauto_reset\fR.  This will force the next \fBauto_load\fR command to
 reload the index database from disk.
+.RS
+.PP
+It is not normally necessary to call this command directly; the
+default \fBunknown\fR handler will do so.
+.RE
+.\" COMMAND: auto_mkindex
 .TP
 \fBauto_mkindex \fIdir pattern pattern ...\fR
+.
 Generates an index suitable for use by \fBauto_load\fR.  The command
 searches \fIdir\fR for all files whose names match any of the
 \fIpattern\fR arguments (matching is done with the \fBglob\fR
@@ -113,42 +158,50 @@ in all the matching files, and stores the index information in a file
 named \fBtclIndex\fR in \fIdir\fR. If no pattern is given a pattern of
 \fB*.tcl\fR will be assumed.  For example, the command
 .RS
+.PP
 .CS
 \fBauto_mkindex foo *.tcl\fR
 .CE
-.LP
+.PP
 will read all the \fB.tcl\fR files in subdirectory \fBfoo\fR and
 generate a new index file \fBfoo/tclIndex\fR.
 .PP
 \fBAuto_mkindex\fR parses the Tcl scripts by sourcing them into a
-slave interpreter and monitoring the proc and namespace commands that
+child interpreter and monitoring the proc and namespace commands that
 are executed.  Extensions can use the (undocumented)
 auto_mkindex_parser package to register other commands that can
 contribute to the auto_load index. You will have to read through
 auto.tcl to see how this works.
 .PP
-\fBAuto_mkindex_old\fR parses the Tcl scripts in a relatively
-unsophisticated way:  if any line contains the word \fBproc\fR
+\fBAuto_mkindex_old\fR
+(which has the same syntax as \fBauto_mkindex\fR)
+parses the Tcl scripts in a relatively
+unsophisticated way:  if any line contains the word
+.QW \fBproc\fR
 as its first characters then it is assumed to be a procedure
 definition and the next word of the line is taken as the
 procedure's name.
-Procedure definitions that do not appear in this way (e.g. they
+Procedure definitions that do not appear in this way (e.g.\ they
 have spaces before the \fBproc\fR) will not be indexed.  If your
 script contains
 .QW dangerous
 code, such as global initialization
 code or procedure names with special characters like \fB$\fR,
-\fB*\fR, \fB[\fR or \fB]\fR, you are safer using auto_mkindex_old.
+\fB*\fR, \fB[\fR or \fB]\fR, you are safer using \fBauto_mkindex_old\fR.
 .RE
+.\" COMMAND: auto_reset
 .TP
 \fBauto_reset\fR
+.
 Destroys all the information cached by \fBauto_execok\fR and
 \fBauto_load\fR.  This information will be re-read from disk the next
 time it is needed.  \fBAuto_reset\fR also deletes any procedures
 listed in the auto-load index, so that fresh copies of them will be
 loaded the next time that they are used.
+.\" COMMAND: auto_qualify
 .TP
 \fBauto_qualify \fIcommand namespace\fR
+.
 Computes a list of fully qualified names for \fIcommand\fR.  This list
 mirrors the path a standard Tcl interpreter follows for command
 lookups:  first it looks for the command in the current namespace, and
@@ -166,8 +219,10 @@ if it were a command in the global namespace.
 for producing auto-loading indexes such as \fIpkgIndex.tcl\fR, and for
 performing the actual auto-loading of functions at runtime.
 .RE
+.\" COMMAND: auto_findLibrary
 .TP
 \fBtcl_findLibrary \fIbasename version patch initScript enVarName varName\fR
+.
 This is a standard search procedure for use by extensions during
 their initialization.  They call this procedure to look for their
 script library in several standard directories.
@@ -188,16 +243,32 @@ relative to the executable file in the standard installation
 bin or bin/\fIarch\fR directory;
 relative to the executable file in the current build tree;
 relative to the executable file in a parallel build tree.
+.\" COMMAND: parray
 .TP
 \fBparray \fIarrayName\fR ?\fIpattern\fR?
+.
 Prints on standard output the names and values of all the elements in the
 array \fIarrayName\fR, or just the names that match \fIpattern\fR (using the
 matching rules of \fBstring match\fR) and their values if \fIpattern\fR is
 given.
-\fBArrayName\fR must be an array accessible to the caller of \fBparray\fR.
+\fIArrayName\fR must be an array accessible to the caller of \fBparray\fR.
 It may be either local or global.
+The result of this command is the empty string.
+.RS
+.PP
+For example, to print the contents of the \fBtcl_platform\fR array, do:
+.PP
+.CS
+\fBparray\fR tcl_platform
+.CE
+.RE
+.SS "WORD BOUNDARY HELPERS"
+.PP
+These procedures are mainly used internally by Tk.
+.\" COMMAND: tcl_endOfWord
 .TP
 \fBtcl_endOfWord \fIstr start\fR
+.
 Returns the index of the first end-of-word location that occurs after
 a starting index \fIstart\fR in the string \fIstr\fR.  An end-of-word
 location is defined to be the first non-word character following the
@@ -206,95 +277,215 @@ are no more end-of-word locations after the starting point.  See the
 description of \fBtcl_wordchars\fR and \fBtcl_nonwordchars\fR below
 for more details on how Tcl determines which characters are word
 characters.
+.\" COMMAND: tcl_startOfNextWord
 .TP
 \fBtcl_startOfNextWord \fIstr start\fR
+.
 Returns the index of the first start-of-word location that occurs
 after a starting index \fIstart\fR in the string \fIstr\fR.  A
 start-of-word location is defined to be the first word character
 following a non-word character.  Returns \-1 if there are no more
 start-of-word locations after the starting point.
+.RS
+.PP
+For example, to print the indices of the starts of each word in a
+string according to platform rules:
+.PP
+.CS
+set theString "The quick brown fox"
+for {set idx 0} {$idx >= 0} {
+        set idx [\fBtcl_startOfNextWord\fR $theString $idx]} {
+    puts "Word start index: $idx"
+}
+.CE
+.RE
+.\" COMMAND: tcl_startOfPreviousWord
 .TP
 \fBtcl_startOfPreviousWord \fIstr start\fR
+.
 Returns the index of the first start-of-word location that occurs
 before a starting index \fIstart\fR in the string \fIstr\fR.  Returns
 \-1 if there are no more start-of-word locations before the starting
 point.
+.\" COMMAND: tcl_wordBreakAfter
 .TP
 \fBtcl_wordBreakAfter \fIstr start\fR
+.
 Returns the index of the first word boundary after the starting index
 \fIstart\fR in the string \fIstr\fR.  Returns \-1 if there are no more
 boundaries after the starting point in the given string.  The index
 returned refers to the second character of the pair that comprises a
 boundary.
+.\" COMMAND: tcl_wordBreakBefore
 .TP
 \fBtcl_wordBreakBefore \fIstr start\fR
+.
 Returns the index of the first word boundary before the starting index
 \fIstart\fR in the string \fIstr\fR.  Returns \-1 if there are no more
 boundaries before the starting point in the given string.  The index
 returned refers to the second character of the pair that comprises a
 boundary.
+.SS "FILE ACCESS HELPERS"
+.\" COMMAND: foreachLine
+.TP
+\fBforeachLine \fIvarName filename body\fR
+.VS TIP670
+This reads in the text file named \fIfilename\fR one line at a time
+(using system defaults for reading text files). It writes that line to the
+variable named by \fIvarName\fR and then executes \fIbody\fR for that line.
+The result value of \fIbody\fR is ignored, but \fBerror\fR, \fBreturn\fR,
+\fBbreak\fR and \fBcontinue\fR may be used within it to produce an error,
+return from the calling context, stop the loop, or go to the next line
+respectively.
+The overall result of \fBforeachLine\fR is the empty string (assuming no
+errors from I/O or from evaluating the body of the loop); the file will be
+closed prior to the procedure returning.
+.VE TIP670
+.\" COMMAND: readFile
+.TP
+\fBreadFile \fIfilename\fR ?\fBtext\fR|\fBbinary\fR?
+.VS TIP670
+Reads in the file named in \fIfilename\fR and returns its contents.
+The second argument says how to read in the file, either as \fBtext\fR
+(using the system defaults for reading text files) or as \fBbinary\fR
+(as uninterpreted bytes). The default is \fBtext\fR. When read as text, this
+will include any trailing newline.
+The file will be closed prior to the procedure returning.
+.VE TIP670
+.\" COMMAND: writeFile
+.TP
+\fBwriteFile \fIfilename\fR ?\fBtext\fR|\fBbinary\fR? \fIcontents\fR
+.VS TIP670
+Writes the \fIcontents\fR to the file named in \fIfilename\fR.
+The optional second argument says how to write to the file, either as
+\fBtext\fR (using the system defaults for writing text files) or as
+\fBbinary\fR (as uninterpreted bytes). The default is \fBtext\fR.
+If a trailing newline is required, it will need to be provided in
+\fIcontents\fR. The result of this command is the empty string; the file will
+be closed prior to the procedure returning.
+.VE TIP670
 .SH "VARIABLES"
 .PP
 The following global variables are defined or used by the procedures in
-the Tcl library:
+the Tcl library. They fall into two broad classes, handling unknown
+commands and packages, and determining what are words.
+.SS "AUTOLOADING AND PACKAGE MANAGEMENT VARIABLES"
+.\" VARIABLE: auto_execs
 .TP
 \fBauto_execs\fR
+.
 Used by \fBauto_execok\fR to record information about whether
 particular commands exist as executable files.
+.RS
+.PP
+Not normally usefully accessed directly by user code.
+.RE
+.\" VARIABLE: auto_index
 .TP
 \fBauto_index\fR
+.
 Used by \fBauto_load\fR to save the index information read from
 disk.
+.RS
+.PP
+Not normally usefully accessed directly by user code.
+.RE
+.\" VARIABLE: auto_noexec
 .TP
 \fBauto_noexec\fR
+.
 If set to any value, then \fBunknown\fR will not attempt to auto-exec
 any commands.
+.\" VARIABLE: auto_noload
 .TP
 \fBauto_noload\fR
+.
 If set to any value, then \fBunknown\fR will not attempt to auto-load
 any commands.
+.\" VARIABLE: auto_path
 .TP
 \fBauto_path\fR
+.
 If set, then it must contain a valid Tcl list giving directories to
-search during auto-load operations.
+search during auto-load operations (including for package index
+files when using the default \fBpackage unknown\fR handler).
 This variable is initialized during startup to contain, in order:
-the directories listed in the TCLLIBPATH environment variable,
-the directory named by the $tcl_library variable,
-the parent directory of $tcl_library,
-the directories listed in the $tcl_pkgPath variable.
+the directories listed in the \fBTCLLIBPATH\fR environment variable,
+the directory named by the \fBtcl_library\fR global variable,
+the parent directory of \fBtcl_library\fR,
+the directories listed in the \fBtcl_pkgPath\fR variable.
+Additional locations to look for files and package indices should
+normally be added to this variable using \fBlappend\fR.
+.RS
+.PP
+For example, to add the \fIlib\fR directory next to the running
+script, you would do:
+.PP
+.CS
+lappend \fBauto_path\fR [file dirname [info script]]/lib
+.CE
+.PP
+Note that if the script uses \fBcd\fR, it is advisable to ensure that
+entries on the \fBauto_path\fR are \fBfile normalize\fRd.
+.RE
+.\" VARIABLE: env(TCL_LIBRARY)
 .TP
 \fBenv(TCL_LIBRARY)\fR
+.
 If set, then it specifies the location of the directory containing
 library scripts (the value of this variable will be
 assigned to the \fBtcl_library\fR variable and therefore returned by
 the command \fBinfo library\fR).  If this variable is not set then
 a default value is used.
+.RS
+.PP
+Use of this environment variable is not recommended outside of testing.
+Tcl installations should already know where to find their own script
+files, as the value is baked in during the build or installation.
+.RE
+.\" VARIABLE: env(TCLLIBPATH)
 .TP
 \fBenv(TCLLIBPATH)\fR
+.
 If set, then it must contain a valid Tcl list giving directories to
 search during auto-load operations.  Directories must be specified in
 Tcl format, using
 .QW /
 as the path separator, regardless of platform.
 This variable is only used when initializing the \fBauto_path\fR variable.
+.RS
+.PP
+A key consequence of this variable is that it gives a way to let the user
+of a script specify the list of places where that script may use
+\fBpackage require\fR to read packages from. It is not normally usefully
+settable within a Tcl script itself \fIexcept\fR to influence where other
+interpreters load from (whether made with \fBinterp create\fR or launched
+as their own threads or subprocesses).
+.RE
+.SS "WORD BOUNDARY DETERMINATION VARIABLES"
+These variables are only used in the \fBtcl_endOfWord\fR,
+\fBtcl_startOfNextWord\fR, \fBtcl_startOfPreviousWord\fR,
+\fBtcl_wordBreakAfter\fR, and \fBtcl_wordBreakBefore\fR commands.
+.\" VARIABLE: tcl_nonwordchars
 .TP
 \fBtcl_nonwordchars\fR
+.
 This variable contains a regular expression that is used by routines
 like \fBtcl_endOfWord\fR to identify whether a character is part of a
 word or not.  If the pattern matches a character, the character is
-considered to be a non-word character.  On Windows platforms, spaces,
-tabs, and newlines are considered non-word characters.  Under Unix,
-everything but numbers, letters and underscores are considered
-non-word characters.
+considered to be a non-word character. The default value is \fB\eW\fR.
+.\" VARIABLE: tcl_wordchars
 .TP
 \fBtcl_wordchars\fR
+.
 This variable contains a regular expression that is used by routines
 like \fBtcl_endOfWord\fR to identify whether a character is part of a
 word or not.  If the pattern matches a character, the character is
-considered to be a word character.  On Windows platforms, words are
-comprised of any character that is not a space, tab, or newline.  Under
-Unix, words are comprised of numbers, letters or underscores.
+considered to be a word character. The default value is \fB\ew\fR.
 .SH "SEE ALSO"
-info(n), re_syntax(n)
+env(n), info(n), re_syntax(n)
 .SH KEYWORDS
 auto-exec, auto-load, library, unknown, word, whitespace
+'\"Local Variables:
+'\"mode: nroff
+'\"End:
diff --git a/doc/lindex.n b/doc/lindex.n
index 1482807..d4d845d 100644
--- a/doc/lindex.n
+++ b/doc/lindex.n
@@ -1,11 +1,11 @@
 '\"
 '\" Copyright (c) 1993 The Regents of the University of California.
 '\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
-'\" Copyright (c) 2001 by Kevin B. Kenny <kennykb@acm.org>.  All rights reserved.
+'\" Copyright (c) 2001 Kevin B. Kenny <kennykb@acm.org>.  All rights reserved.
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH lindex n 8.4 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -13,7 +13,7 @@
 .SH NAME
 lindex \- Retrieve an element from a list
 .SH SYNOPSIS
-\fBlindex \fIlist ?index...?\fR
+\fBlindex \fIlist\fR ?\fIindex ...\fR?
 .BE
 .SH DESCRIPTION
 .PP
@@ -24,13 +24,17 @@ command line, or grouped in a
 Tcl list and presented as a single argument.
 .PP
 If no indices are presented, the command takes the form:
+.PP
 .CS
-lindex list
+\fBlindex \fIlist\fR
 .CE
+.PP
 or
+.PP
 .CS
-lindex list {}
+\fBlindex \fIlist\fR {}
 .CE
+.PP
 In this case, the return value of \fBlindex\fR is simply the value of the
 \fIlist\fR parameter.
 .PP
@@ -44,32 +48,34 @@ substitution and command substitution do not occur.
 If \fIindex\fR is negative or greater than or equal to the number
 of elements in \fIvalue\fR, then an empty
 string is returned.
-.VS 8.5
-The interpretation of each simple \fIindex\fR value is the same as 
+The interpretation of each simple \fIindex\fR value is the same as
 for the command \fBstring index\fR, supporting simple index
 arithmetic and indices relative to the end of the list.
-.VE 8.5
 .PP
 If additional \fIindex\fR arguments are supplied, then each argument is
 used in turn to select an element from the previous indexing operation,
 allowing the script to select elements from sublists.  The command,
+.PP
 .CS
-lindex $a 1 2 3
+\fBlindex\fR $a 1 2 3
 .CE
+.PP
 or
+.PP
 .CS
-lindex $a {1 2 3}
+\fBlindex\fR $a {1 2 3}
 .CE
+.PP
 is synonymous with
+.PP
 .CS
-lindex [lindex [lindex $a 1] 2] 3
+\fBlindex\fR [\fBlindex\fR [\fBlindex\fR $a 1] 2] 3
 .CE
 .SH EXAMPLES
+.PP
+Lists can be indexed into from either end:
+.PP
 .CS
-\fBlindex\fR {a b c}
-      \fI\(-> a b c\fR
-\fBlindex\fR {a b c} {}
-      \fI\(-> a b c\fR
 \fBlindex\fR {a b c} 0
       \fI\(-> a\fR
 \fBlindex\fR {a b c} 2
@@ -78,6 +84,15 @@ lindex [lindex [lindex $a 1] 2] 3
       \fI\(-> c\fR
 \fBlindex\fR {a b c} end-1
       \fI\(-> b\fR
+.CE
+.PP
+Lists or sequences of indices allow selection into lists of lists:
+.PP
+.CS
+\fBlindex\fR {a b c}
+      \fI\(-> a b c\fR
+\fBlindex\fR {a b c} {}
+      \fI\(-> a b c\fR
 \fBlindex\fR {{a b c} {d e f} {g h i}} 2 1
       \fI\(-> h\fR
 \fBlindex\fR {{a b c} {d e f} {g h i}} {2 1}
@@ -87,12 +102,25 @@ lindex [lindex [lindex $a 1] 2] 3
 \fBlindex\fR {{{a b} {c d}} {{e f} {g h}}} {1 1 0}
       \fI\(-> g\fR
 .CE
+.PP
+List indices may also perform limited computation, adding or subtracting fixed
+amounts from other indices:
+.PP
+.CS
+set idx 1
+\fBlindex\fR {a b c d e f} $idx+2
+      \fI\(-> d\fR
+set idx 3
+\fBlindex\fR {a b c d e f} $idx+2
+      \fI\(-> f\fR
+.CE
 .SH "SEE ALSO"
-list(n), lappend(n), linsert(n), llength(n), lsearch(n), 
-lset(n), lsort(n), lrange(n), lreplace(n),
-.VS 8.5
+list(n), lappend(n), lassign(n), ledit(n), linsert(n), llength(n),
+lmap(n), lpop(n), lrange(n), lremove(n), lrepeat(n), lreplace(n),
+lreverse(n), lsearch(n), lseq(n), lset(n), lsort(n),
 string(n)
-.VE
-
 .SH KEYWORDS
 element, index, list
+'\"Local Variables:
+'\"mode: nroff
+'\"End:
diff --git a/doc/link.n b/doc/link.n
new file mode 100644
index 0000000..4561b57
--- /dev/null
+++ b/doc/link.n
@@ -0,0 +1,124 @@
+'\"
+'\" Copyright (c) 2011-2015 Andreas Kupries
+'\" Copyright (c) 2018 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH link n 0.3 TclOO "TclOO Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+link \- create link from command to method of object
+.SH SYNOPSIS
+.nf
+package require tcl::oo
+
+\fBlink\fI methodName\fR ?\fI...\fR?
+\fBlink\fR \fB{\fIcommandName methodName\fB}\fR ?\fI...\fR?
+.fi
+.BE
+.SH DESCRIPTION
+The \fBlink\fR command is available within methods. It takes a series of one
+or more method names (\fImethodName ...\fR) and/or pairs of command- and
+method-name (\fB{\fIcommandName methodName\fB}\fR) and makes the named methods
+available as commands without requiring the explicit use of the name of the
+object or the \fBmy\fR command. The method does not need to exist at the time
+that the link is made; if the link command is invoked when the method does not
+exist, the standard \fBunknown\fR method handling system is used.
+.PP
+The command name under which the method becomes available defaults to the
+method name, except where explicitly specified through an alias/method pair.
+Formally, every argument must be a list; if the list has two elements, the
+first element is the name of the command to create and the second element is
+the name of the method of the current object to which the command links;
+otherwise, the name of the command and the name of the method are the same
+string (the first element of the list).
+.PP
+If the name of the command is not a fully-qualified command name, it will be
+resolved with respect to the current namespace (i.e., the object namespace).
+.SH EXAMPLES
+This demonstrates linking a single method in various ways. First it makes a
+simple link, then a renamed link, then an external link. Note that the method
+itself is unexported, but that it can still be called directly from outside
+the class.
+.PP
+.CS
+oo::class create ABC {
+    method Foo {} {
+        puts "This is Foo in [self]"
+    }
+
+    constructor {} {
+        \fBlink\fR Foo
+        # The method Foo is now directly accessible as Foo here
+        \fBlink\fR {bar Foo}
+        # The method Foo is now directly accessible as bar
+        \fBlink\fR {::ExternalCall Foo}
+        # The method Foo is now directly accessible in the global
+        # namespace as ExternalCall
+    }
+
+    method grill {} {
+        puts "Step 1:"
+        Foo
+        puts "Step 2:"
+        bar
+    }
+}
+
+ABC create abc
+abc grill
+        \fI\(-> Step 1:\fR
+        \fI\(-> This is Foo in ::abc\fR
+        \fI\(-> Step 2:\fR
+        \fI\(-> This is Foo in ::abc\fR
+# Direct access via the linked command
+puts "Step 3:"; ExternalCall
+        \fI\(-> Step 3:\fR
+        \fI\(-> This is Foo in ::abc\fR
+.CE
+.PP
+This example shows that multiple linked commands can be made in a call to
+\fBlink\fR, and that they can handle arguments.
+.PP
+.CS
+oo::class create Ex {
+    constructor {} {
+        \fBlink\fR a b c
+        # The methods a, b, and c (defined below) are all now
+        # directly accessible within methods under their own names.
+    }
+
+    method a {} {
+        puts "This is a"
+    }
+    method b {x} {
+        puts "This is b($x)"
+    }
+    method c {y z} {
+        puts "This is c($y,$z)"
+    }
+
+    method call {p q r} {
+        a
+        b $p
+        c $q $r
+    }
+}
+
+set o [Ex new]
+$o 3 5 7
+        \fI\(-> This is a\fR
+        \fI\(-> This is b(3)\fR
+        \fI\(-> This is c(5,7)\fR
+.CE
+.SH "SEE ALSO"
+interp(n), my(n), oo::class(n), oo::define(n)
+.SH KEYWORDS
+command, method, object
+.\" Local Variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/linsert.n b/doc/linsert.n
index d73a05a..014f9cd 100644
--- a/doc/linsert.n
+++ b/doc/linsert.n
@@ -5,7 +5,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH linsert n 8.2 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -13,24 +13,30 @@
 .SH NAME
 linsert \- Insert elements into a list
 .SH SYNOPSIS
-\fBlinsert \fIlist index element \fR?\fIelement element ...\fR?
+\fBlinsert \fIlist index \fR?\fIelement element ...\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 This command produces a new list from \fIlist\fR by inserting all of the
 \fIelement\fR arguments just before the \fIindex\fR'th element of
 \fIlist\fR.  Each \fIelement\fR argument will become a separate element of
 the new list.  If \fIindex\fR is less than or equal to zero, then the new
-elements are inserted at the beginning of the list.  
-.VS 8.5
-The interpretation of the \fIindex\fR value is the same as
-for the command \fBstring index\fR, supporting simple index
-arithmetic and indices relative to the end of the list.
-.VE
+elements are inserted at the beginning of the list, and if \fIindex\fR is
+greater or equal to the length of \fIlist\fR, it is as if it was \fBend\fR.
+As with \fBstring index\fR, the \fIindex\fR value supports both simple index
+arithmetic and end-relative indexing.
+.PP
+Subject to the restrictions that indices must refer to locations inside the
+list and that the \fIelement\fRs will always be inserted in order, insertions
+are done so that when \fIindex\fR is start-relative, the first \fIelement\fR
+will be at that index in the resulting list, and when \fIindex\fR is
+end-relative, the last \fIelement\fR will be at that index in the resulting
+list.
 .SH EXAMPLE
+.PP
 Putting some values into a list, first indexing from the start and
 then indexing from the end, and then chaining them together:
+.PP
 .CS
 set oldList {the fox jumps over the dog}
 set midList [\fBlinsert\fR $oldList 1 quick]
@@ -38,13 +44,13 @@ set newList [\fBlinsert\fR $midList end-1 lazy]
 # The old lists still exist though...
 set newerList [\fBlinsert\fR [\fBlinsert\fR $oldList end-1 quick] 1 lazy]
 .CE
-
 .SH "SEE ALSO"
-list(n), lappend(n), lindex(n), llength(n), lsearch(n), 
-lset(n), lsort(n), lrange(n), lreplace(n),
-.VS 8.5
+list(n), lappend(n), lassign(n), ledit(n), lindex(n), llength(n),
+lmap(n), lpop(n), lrange(n), lremove(n), lrepeat(n), lreplace(n),
+lreverse(n), lsearch(n), lseq(n), lset(n), lsort(n),
 string(n)
-.VE
-
 .SH KEYWORDS
 element, insert, list
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/list.n b/doc/list.n
index 993987e..08a6fe7 100644
--- a/doc/list.n
+++ b/doc/list.n
@@ -5,7 +5,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH list n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -15,7 +15,6 @@ list \- Create a list
 .SH SYNOPSIS
 \fBlist \fR?\fIarg arg ...\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 This command returns a list comprised of all the \fIarg\fRs,
@@ -28,25 +27,30 @@ its arguments.  \fBList\fR produces slightly different results than
 \fBconcat\fR:  \fBconcat\fR removes one level of grouping before forming
 the list, while \fBlist\fR works directly from the original arguments.
 .SH EXAMPLE
+.PP
 The command
+.PP
 .CS
 \fBlist\fR a b "c d e  " "  f {g h}"
 .CE
+.PP
 will return
+.PP
 .CS
 \fBa b {c d e  } {  f {g h}}\fR
 .CE
+.PP
 while \fBconcat\fR with the same arguments will return
+.PP
 .CS
 \fBa b c d e f {g h}\fR
 .CE
-
 .SH "SEE ALSO"
-lappend(n), lindex(n), linsert(n), llength(n), lrange(n),
-.VS 8.5
-lrepeat(n),
-.VE 8.5
-lreplace(n), lsearch(n), lset(n), lsort(n)
-
+lappend(n), lassign(n), ledit(n), lindex(n), linsert(n), llength(n),
+lmap(n), lpop(n), lrange(n), lremove(n), lrepeat(n), lreplace(n),
+lreverse(n), lsearch(n), lseq(n), lset(n), lsort(n)
 .SH KEYWORDS
-element, list
+element, list, quoting
+'\"Local Variables:
+'\"mode: nroff
+'\"End:
diff --git a/doc/llength.n b/doc/llength.n
index d3d7e14..574834f 100644
--- a/doc/llength.n
+++ b/doc/llength.n
@@ -5,7 +5,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH llength n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -15,14 +15,14 @@ llength \- Count the number of elements in a list
 .SH SYNOPSIS
 \fBllength \fIlist\fR
 .BE
-
 .SH DESCRIPTION
 .PP
 Treats \fIlist\fR as a list and returns a decimal string giving
 the number of elements in it.
-
 .SH EXAMPLES
+.PP
 The result is the number of elements:
+.PP
 .CS
 % \fBllength\fR {a b c d e}
 5
@@ -34,6 +34,7 @@ The result is the number of elements:
 .PP
 Elements are not guaranteed to be exactly words in a dictionary sense
 of course, especially when quoting is used:
+.PP
 .CS
 % \fBllength\fR {a b {c d} e}
 4
@@ -42,14 +43,18 @@ of course, especially when quoting is used:
 .CE
 .PP
 An empty list is not necessarily an empty string:
+.PP
 .CS
 % set var { }; puts "[string length $var],[\fBllength\fR $var]"
 1,0
 .CE
-
 .SH "SEE ALSO"
-list(n), lappend(n), lindex(n), linsert(n), lsearch(n), 
-lset(n), lsort(n), lrange(n), lreplace(n)
-
+list(n), lappend(n), lassign(n), ledit(n), lindex(n), linsert(n),
+lmap(n), lpop(n), lrange(n), lremove(n), lrepeat(n), lreplace(n),
+lreverse(n), lsearch(n), lseq(n), lset(n), lsort(n)
 .SH KEYWORDS
 element, list, length
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/lmap.n b/doc/lmap.n
new file mode 100644
index 0000000..36a0c7c
--- /dev/null
+++ b/doc/lmap.n
@@ -0,0 +1,88 @@
+'\"
+'\" Copyright (c) 2012 Trevor Davel
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH lmap n "" Tcl "Tcl Built-In Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+lmap \- Iterate over all elements in one or more lists and collect results
+.SH SYNOPSIS
+\fBlmap \fIvarname list body\fR
+.br
+\fBlmap \fIvarlist1 list1\fR ?\fIvarlist2 list2 ...\fR? \fIbody\fR
+.BE
+.SH DESCRIPTION
+.PP
+The \fBlmap\fR command implements a loop where the loop variable(s) take on
+values from one or more lists, and the loop returns a list of results
+collected from each iteration.
+.PP
+In the simplest case there is one loop variable, \fIvarname\fR, and one list,
+\fIlist\fR, that is a list of values to assign to \fIvarname\fR. The
+\fIbody\fR argument is a Tcl script. For each element of \fIlist\fR (in order
+from first to last), \fBlmap\fR assigns the contents of the element to
+\fIvarname\fR as if the \fBlindex\fR command had been used to extract the
+element, then calls the Tcl interpreter to execute \fIbody\fR. If execution of
+the body completes normally then the result of the body is appended to an
+accumulator list. \fBlmap\fR returns the accumulator list.
+.PP
+In the general case there can be more than one value list (e.g., \fIlist1\fR
+and \fIlist2\fR), and each value list can be associated with a list of loop
+variables (e.g., \fIvarlist1\fR and \fIvarlist2\fR). During each iteration of
+the loop the variables of each \fIvarlist\fR are assigned consecutive values
+from the corresponding \fIlist\fR. Values in each \fIlist\fR are used in order
+from first to last, and each value is used exactly once. The total number of
+loop iterations is large enough to use up all the values from all the value
+lists. If a value list does not contain enough elements for each of its loop
+variables in each iteration, empty values are used for the missing elements.
+.PP
+The \fBbreak\fR and \fBcontinue\fR statements may be invoked inside
+\fIbody\fR, with the same effect as in the \fBfor\fR and \fBforeach\fR
+commands. In these cases the body does not complete normally and the result is
+not appended to the accumulator list.
+.SH EXAMPLES
+.PP
+Zip lists together:
+.PP
+.CS
+set list1 {a b c d}
+set list2 {1 2 3 4}
+set zipped [\fBlmap\fR a $list1 b $list2 {list $a $b}]
+# The value of zipped is "{a 1} {b 2} {c 3} {d 4}"
+.CE
+.PP
+Filter a list to remove odd values:
+.PP
+.CS
+set values {1 2 3 4 5 6 7 8}
+proc isEven {n} {expr {($n % 2) == 0}}
+set goodOnes [\fBlmap\fR x $values {expr {
+    [isEven $x] ? $x : [continue]
+}}]
+# The value of goodOnes is "2 4 6 8"
+.CE
+.PP
+Take a prefix from a list based on the contents of the list:
+.PP
+.CS
+set values {8 7 6 5 4 3 2 1}
+proc isGood {counter} {expr {$n > 3}}
+set prefix [\fBlmap\fR x $values {expr {
+    [isGood $x] ? $x : [break]
+}}]
+# The value of prefix is "8 7 6 5 4"
+.CE
+.SH "SEE ALSO"
+break(n), continue(n), for(n), foreach(n), while(n),
+list(n), lappend(n), lassign(n), ledit(n), lindex(n), linsert(n), llength(n),
+lpop(n), lrange(n), lremove(n), lrepeat(n), lreplace(n),
+lreverse(n), lsearch(n), lseq(n), lset(n), lsort(n)
+.SH KEYWORDS
+foreach, iteration, list, loop, map
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/load.n b/doc/load.n
index e028642..c6d27a8 100644
--- a/doc/load.n
+++ b/doc/load.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH load n 7.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -11,25 +11,23 @@
 .SH NAME
 load \- Load machine code and initialize new commands
 .SH SYNOPSIS
-\fBload \fIfileName\fR
+\fBload\fR ?\fB\-global\fR? ?\fB\-lazy\fR? ?\fB\-\-\fR? \fIfileName\fR
 .br
-\fBload \fIfileName packageName\fR
+\fBload\fR ?\fB\-global\fR? ?\fB\-lazy\fR? ?\fB\-\-\fR? \fIfileName prefix\fR
 .br
-\fBload \fIfileName packageName interp\fR
+\fBload\fR ?\fB\-global\fR? ?\fB\-lazy\fR? ?\fB\-\-\fR? \fIfileName prefix interp\fR
 .BE
-
 .SH DESCRIPTION
 .PP
 This command loads binary code from a file into the
 application's address space and calls an initialization procedure
-in the package to incorporate it into an interpreter.  \fIfileName\fR
+in the library to incorporate it into an interpreter.  \fIfileName\fR
 is the name of the file containing the code;  its exact form varies
 from system to system but on most systems it is a shared library,
 such as a \fB.so\fR file under Solaris or a DLL under Windows.
-\fIpackageName\fR is the name of the package, and is used to
-compute the name of an initialization procedure.
+\fIprefix\fR is used to compute the name of an initialization procedure.
 \fIinterp\fR is the path name of the interpreter into which to load
-the package (see the \fBinterp\fR manual entry for details);
+the library (see the \fBinterp\fR manual entry for details);
 if \fIinterp\fR is omitted, it defaults to the
 interpreter in which the \fBload\fR command was invoked.
 .PP
@@ -38,29 +36,29 @@ one of two initialization procedures will be invoked in the new code.
 Typically the initialization procedure will add new commands to a
 Tcl interpreter.
 The name of the initialization procedure is determined by
-\fIpackageName\fR and whether or not the target interpreter
+\fIprefix\fR and whether or not the target interpreter
 is a safe one.  For normal interpreters the name of the initialization
-procedure will have the form \fIpkg\fB_Init\fR, where \fIpkg\fR
-is the same as \fIpackageName\fR except that the first letter is
-converted to upper case and all other letters
-are converted to lower case.  For example, if \fIpackageName\fR is
-\fBfoo\fR or \fBFOo\fR, the initialization procedure's name will
+procedure will have the form \fIprefix\fB_Init\fR.  For example, if
+\fIprefix\fR is \fBFoo\fR, the initialization procedure's name will
 be \fBFoo_Init\fR.
 .PP
 If the target interpreter is a safe interpreter, then the name
-of the initialization procedure will be \fIpkg\fB_SafeInit\fR
-instead of \fIpkg\fB_Init\fR.
-The \fIpkg\fB_SafeInit\fR function should be written carefully, so that it
+of the initialization procedure will be \fIprefix\fB_SafeInit\fR
+instead of \fIprefix\fB_Init\fR.
+The \fIprefix\fB_SafeInit\fR function should be written carefully, so that it
 initializes the safe interpreter only with partial functionality provided
-by the package that is safe for use by untrusted code. For more information
+by the library that is safe for use by untrusted code. For more information
 on Safe\-Tcl, see the \fBsafe\fR manual entry.
 .PP
 The initialization procedure must match the following prototype:
+.PP
 .CS
-typedef int Tcl_PackageInitProc(Tcl_Interp *\fIinterp\fR);
+typedef int \fBTcl_LibraryInitProc\fR(
+        Tcl_Interp *\fIinterp\fR);
 .CE
+.PP
 The \fIinterp\fR argument identifies the interpreter in which the
-package is to be loaded.  The initialization procedure must return
+library is to be loaded.  The initialization procedure must return
 \fBTCL_OK\fR or \fBTCL_ERROR\fR to indicate whether or not it completed
 successfully;  in the event of an error it should set the interpreter's result
 to point to an error message.  The result of the \fBload\fR command
@@ -71,42 +69,55 @@ in an application.  If a given \fIfileName\fR is loaded into multiple
 interpreters, then the first \fBload\fR will load the code and
 call the initialization procedure;  subsequent \fBload\fRs will
 call the initialization procedure without loading the code again.
-.VS 8.5
 For Tcl versions lower than 8.5, it is not possible to unload or reload a
-package. From version 8.5 however, the \fBunload\fR command allows the unloading
+library. From version 8.5 however, the \fBunload\fR command allows the unloading
 of libraries loaded with \fBload\fR, for libraries that are aware of the
 Tcl's unloading mechanism.
-.VE 8.5
 .PP
-The \fBload\fR command also supports packages that are statically
-linked with the application, if those packages have been registered
-by calling the \fBTcl_StaticPackage\fR procedure.
-If \fIfileName\fR is an empty string, then \fIpackageName\fR must
+The \fBload\fR command also supports libraries that are statically
+linked with the application, if those libraries have been registered
+by calling the \fBTcl_StaticLibrary\fR procedure.
+If \fIfileName\fR is an empty string, then \fIprefix\fR must
 be specified.
 .PP
-If \fIpackageName\fR is omitted or specified as an empty string,
-Tcl tries to guess the name of the package.
-This may be done differently on different platforms.
-The default guess, which is used on most UNIX platforms, is to
-take the last element of \fIfileName\fR, strip off the first
-three characters if they are \fBlib\fR, and use any following
-alphabetic and underline characters as the module name.
-For example, the command \fBload libxyz4.2.so\fR uses the module
-name \fBxyz\fR and the command \fBload bin/last.so {}\fR uses the
-module name \fBlast\fR.
-.PP
-If \fIfileName\fR is an empty string, then \fIpackageName\fR must
+If \fIprefix\fR is omitted or specified as an empty string,
+Tcl tries to guess the prefix by taking the last element of
+\fIfileName\fR, strip off the first three characters if they
+are \fBlib\fR, then strip off the next four characters if
+they are \fBtcl9\fR, and use any following wordchars
+but not digits, converted to titlecase as the prefix.
+For example, the command \fBload libxyz4.2.so\fR uses the prefix
+\fBXyz\fR and the command \fBload bin/last.so {}\fR uses the
+prefix \fBLast\fR.
+.PP
+If \fIfileName\fR is an empty string, then \fIprefix\fR must
 be specified.
-The \fBload\fR command first searches for a statically loaded package
-(one that has been registered by calling the \fBTcl_StaticPackage\fR
+The \fBload\fR command first searches for a statically loaded library
+(one that has been registered by calling the \fBTcl_StaticLibrary\fR
 procedure) by that name; if one is found, it is used.
 Otherwise, the \fBload\fR command searches for a dynamically loaded
-package by that name, and uses it if it is found.  If several
+library by that name, and uses it if it is found.  If several
 different files have been \fBload\fRed with different versions of
-the package, Tcl picks the file that was loaded first.
+the library, Tcl picks the file that was loaded first.
+.PP
+If \fB\-global\fR is specified preceding the filename, all symbols
+found in the shared library are exported for global use by other
+libraries. The option \fB\-lazy\fR delays the actual loading of
+symbols until their first actual use. The options may be abbreviated.
+The option \fB\-\-\fR indicates the end of the options, and should
+be used if you wish to use a filename which starts with \fB\-\fR
+and you provide a prefix to the \fBload\fR command.
+.PP
+On platforms which do not support the \fB\-global\fR or \fB\-lazy\fR
+options, the options still exist but have no effect. Note that use
+of the \fB\-global\fR or \fB\-lazy\fR option may lead to crashes
+in your application later (in case of symbol conflicts resp. missing
+symbols), which cannot be detected during the \fBload\fR. So, only
+use this when you know what you are doing, you will not get a nice
+error message when something is wrong with the loaded library.
 .SH "PORTABILITY ISSUES"
 .TP
-\fBWindows\fR\0\0\0\0\0
+\fBWindows\fR
 .
 When a load fails with
 .QW "library not found"
@@ -119,9 +130,12 @@ When loading a DLL in the current directory, Windows will ignore
 .QW ./
 as a path specifier and use a search heuristic to find the DLL instead.
 To avoid this, load the DLL with:
+.RS
+.PP
 .CS
 \fBload\fR [file join [pwd] mylib.DLL]
 .CE
+.RE
 .SH BUGS
 .PP
 If the same file is \fBload\fRed by different \fIfileName\fRs, it will
@@ -129,12 +143,13 @@ be loaded into the process's address space multiple times.  The
 behavior of this varies from system to system (some systems may
 detect the redundant loads, others may not).
 .SH EXAMPLE
+.PP
 The following is a minimal extension:
 .PP
 .CS
 #include <tcl.h>
 #include <stdio.h>
-static int fooCmd(ClientData clientData,
+static int fooCmd(void *clientData,
         Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
     printf("called with %d arguments\en", objc);
     return TCL_OK;
@@ -156,20 +171,21 @@ it can then be loaded into Tcl with the following:
 .CS
 # Load the extension
 switch $tcl_platform(platform) {
-   windows {
-      \fBload\fR [file join [pwd] foo.dll]
-   }
-   unix {
-      \fBload\fR [file join [pwd] libfoo[info sharedlibextension]]
-   }
+    windows {
+        \fBload\fR [file join [pwd] foo.dll]
+    }
+    unix {
+        \fBload\fR [file join [pwd] libfoo[info sharedlibextension]]
+    }
 }
 
 # Now execute the command defined by the extension
 foo
 .CE
-
 .SH "SEE ALSO"
-info sharedlibextension, Tcl_StaticPackage(3), safe(n)
-
+info sharedlibextension, package(n), Tcl_StaticLibrary(3), safe(n)
 .SH KEYWORDS
-binary code, loading, safe interpreter, shared library
+binary code, dynamic library, load, safe interpreter, shared library
+'\"Local Variables:
+'\"mode: nroff
+'\"End:
diff --git a/doc/lpop.n b/doc/lpop.n
new file mode 100644
index 0000000..550182f
--- /dev/null
+++ b/doc/lpop.n
@@ -0,0 +1,99 @@
+'\"
+'\" Copyright (c) 2018 Peter Spjuth.  All rights reserved.
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH lpop n 9.0 Tcl "Tcl Built-In Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+lpop \- Get and remove an element in a list
+.SH SYNOPSIS
+\fBlpop \fIvarName ?index ...?\fR
+.BE
+.SH DESCRIPTION
+.PP
+The \fBlpop\fR command accepts a parameter, \fIvarName\fR, which
+it interprets as the name of a variable containing a Tcl list.
+It also accepts one or more \fIindices\fR into
+the list. If no indices are presented, it defaults to "\fBend\fR".
+.PP
+When presented with a single index, the \fBlpop\fR command
+addresses the \fIindex\fR'th element in it, removes if from the list
+and returns the element.
+.PP
+If \fIindex\fR is negative or greater or equal than the number
+of elements in the list in the variable called \fIvarName\fR, an
+error occurs.
+.PP
+The interpretation of each simple \fIindex\fR value is the same as
+for the command \fBstring index\fR, supporting simple index
+arithmetic and indices relative to the end of the list.
+.PP
+If additional \fIindex\fR arguments are supplied, then each argument is
+used in turn to address an element within a sublist designated
+by the previous indexing operation,
+allowing the script to remove elements in sublists, similar to
+\fBlindex\fR and \fBlset\fR.
+The command,
+.PP
+.CS
+\fBlpop\fR a 1 2
+.CE
+.PP
+gets and removes element 2 of sublist 1.
+.PP
+.SH EXAMPLES
+.PP
+In each of these examples, the initial value of \fIx\fR is:
+.PP
+.CS
+set x [list [list a b c] [list d e f] [list g h i]]
+      \fI\(-> {a b c} {d e f} {g h i}\fR
+.CE
+.PP
+The indicated value becomes the new value of \fIx\fR
+(except in the last case, which is an error which leaves the value of
+\fIx\fR unchanged.)
+.PP
+.CS
+\fBlpop\fR x 0
+      \fI\(-> {d e f} {g h i}\fR
+\fBlpop\fR x 2
+      \fI\(-> {a b c} {d e f}\fR
+\fBlpop\fR x end
+      \fI\(-> {a b c} {d e f}\fR
+\fBlpop\fR x end-1
+      \fI\(-> {a b c} {g h i}\fR
+\fBlpop\fR x 2 1
+      \fI\(-> {a b c} {d e f} {g i}\fR
+\fBlpop\fR x 2 3 j
+      \fI\(-> list index out of range\fR
+.CE
+.PP
+In the following examples, the initial value of \fIx\fR is:
+.PP
+.CS
+set x [list [list [list a b] [list c d]] \e
+            [list [list e f] [list g h]]]
+      \fI\(-> {{a b} {c d}} {{e f} {g h}}\fR
+.CE
+.PP
+The indicated value becomes the new value of \fIx\fR.
+.PP
+.CS
+\fBlpop\fR x 1 1 0
+      \fI\(-> {{a b} {c d}} {{e f} h}\fR
+.CE
+.SH "SEE ALSO"
+list(n), lappend(n), lassign(n), ledit(n), lindex(n), linsert(n), llength(n),
+lmap(n), lrange(n), lremove(n), lrepeat(n), lreplace(n),
+lreverse(n), lsearch(n), lseq(n), lset(n), lsort(n),
+string(n)
+.SH KEYWORDS
+element, index, list, remove, pop, stack, queue
+'\"Local Variables:
+'\"mode: nroff
+'\"End:
diff --git a/doc/lrange.n b/doc/lrange.n
index 66345c6..8dac91f 100644
--- a/doc/lrange.n
+++ b/doc/lrange.n
@@ -5,7 +5,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH lrange n 7.4 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -15,24 +15,22 @@ lrange \- Return one or more adjacent elements from a list
 .SH SYNOPSIS
 \fBlrange \fIlist first last\fR
 .BE
-
 .SH DESCRIPTION
 .PP
 \fIList\fR must be a valid Tcl list.  This command will
 return a new list consisting of elements
 \fIfirst\fR through \fIlast\fR, inclusive.
-.VS 8.5
 The index values \fIfirst\fR and \fIlast\fR are interpreted
 the same as index values for the command \fBstring index\fR,
 supporting simple index arithmetic and indices relative to the
 end of the list.
-.VE
 If \fIfirst\fR is less than zero, it is treated as if it were zero.
 If \fIlast\fR is greater than or equal to the number of elements
 in the list, then it is treated as if it were \fBend\fR.
 If \fIfirst\fR is greater than \fIlast\fR then an empty string
 is returned.
-Note:
+.PP
+Note that
 .QW "\fBlrange \fIlist first first\fR"
 does not always produce the same result as
 .QW "\fBlindex \fIlist first\fR"
@@ -40,19 +38,23 @@ does not always produce the same result as
 braces); it does, however, produce exactly the same results as
 .QW "\fBlist [lindex \fIlist first\fB]\fR"
 .SH EXAMPLES
+.PP
 Selecting the first two elements:
+.PP
 .CS
 % \fBlrange\fR {a b c d e} 0 1
 a b
 .CE
 .PP
 Selecting the last three elements:
+.PP
 .CS
 % \fBlrange\fR {a b c d e} end-2 end
 c d e
 .CE
 .PP
 Selecting everything except the first and last element:
+.PP
 .CS
 % \fBlrange\fR {a b c d e} 1 end-1
 b c d
@@ -60,6 +62,7 @@ b c d
 .PP
 Selecting a single element with \fBlrange\fR is not the same as doing
 so with \fBlindex\fR:
+.PP
 .CS
 % set var {some {elements to} select}
 some {elements to} select
@@ -68,13 +71,14 @@ elements to
 % \fBlrange\fR $var 1 1
 {elements to}
 .CE
-
 .SH "SEE ALSO"
-list(n), lappend(n), lindex(n), linsert(n), llength(n), lsearch(n), 
-lset(n), lreplace(n), lsort(n),
-.VS 8.5
+list(n), lappend(n), lassign(n), ledit(n), lindex(n), linsert(n), llength(n),
+lmap(n), lpop(n), lremove(n), lrepeat(n), lreplace(n),
+lreverse(n), lsearch(n), lseq(n), lset(n), lsort(n),
 string(n)
-.VE
-
 .SH KEYWORDS
 element, list, range, sublist
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/lremove.n b/doc/lremove.n
new file mode 100644
index 0000000..d2c242d
--- /dev/null
+++ b/doc/lremove.n
@@ -0,0 +1,57 @@
+'\"
+'\" Copyright (c) 2019 Donal K. Fellows.
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH lremove n 9.0 Tcl "Tcl Built-In Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+lremove \- Remove elements from a list by index
+.SH SYNOPSIS
+\fBlremove \fIlist\fR ?\fIindex ...\fR?
+.BE
+.SH DESCRIPTION
+.PP
+\fBlremove\fR returns a new list formed by simultaneously removing zero or
+more elements of \fIlist\fR at each of the indices given by an arbitrary number
+of \fIindex\fR arguments. The indices may be in any order and may be repeated;
+the element at index will only be removed once.  The index values are
+interpreted the same as index values for the command \fBstring index\fR,
+supporting simple index arithmetic and indices relative to the end of the
+list.  0 refers to the first element of the list, and \fBend\fR refers to the
+last element of the list.
+.SH EXAMPLES
+.PP
+Removing the third element of a list:
+.PP
+.CS
+% \fBlremove\fR {a b c d e} 2
+a b d e
+.CE
+.PP
+Removing two elements from a list:
+.PP
+.CS
+% \fBlremove\fR {a b c d e} end-1 1
+a c e
+.CE
+.PP
+Removing the same element indicated in two different ways:
+.PP
+.CS
+% \fBlremove\fR {a b c d e} 2 end-2
+a b d e
+.CE
+.SH "SEE ALSO"
+list(n), lappend(n), lassign(n), ledit(n), lindex(n), linsert(n), llength(n),
+lmap(n), lpop(n), lrange(n), lrepeat(n), lreplace(n),
+lreverse(n), lsearch(n), lseq(n), lset(n), lsort(n)
+.SH KEYWORDS
+element, list, remove
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/lrepeat.n b/doc/lrepeat.n
index 848255b..8e4cc41 100644
--- a/doc/lrepeat.n
+++ b/doc/lrepeat.n
@@ -1,9 +1,9 @@
 '\"
-'\" Copyright (c) 2003 by Simon Geard.  All rights reserved.
+'\" Copyright (c) 2003 Simon Geard.  All rights reserved.
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH lrepeat n 8.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -11,16 +11,17 @@
 .SH NAME
 lrepeat \- Build a list by repeating elements
 .SH SYNOPSIS
-\fBlrepeat \fInumber element1 \fR?\fIelement2 element3 ...\fR?
+\fBlrepeat \fIcount \fR?\fIelement ...\fR?
 .BE
 .SH DESCRIPTION
 .PP
-The \fBlrepeat\fR command creates a list of size \fInumber * number of
-elements\fR by repeating \fInumber\fR times the sequence of elements
-\fIelement1 element2 ...\fR.  \fInumber\fR must be a positive integer,
-\fIelementn\fR can be any Tcl value.  Note that \fBlrepeat 1 arg ...\fR
-is identical to \fBlist arg ...\fR, though the \fIarg\fR is required
-with \fBlrepeat\fR.
+The \fBlrepeat\fR command creates a list of size \fIcount * number of
+elements\fR by repeating \fIcount\fR times the sequence of elements
+\fIelement ...\fR.  \fIcount\fR must be a non-negative integer,
+\fIelement\fR can be any Tcl value.
+.PP
+Note that \fBlrepeat 1 element ...\fR
+is identical to \fBlist element ...\fR.
 .SH EXAMPLES
 .CS
 \fBlrepeat\fR 3 a
@@ -33,7 +34,12 @@ with \fBlrepeat\fR.
       \fI\(-> {a a} b c {a a} b c {a a} b c\fR
 .CE
 .SH "SEE ALSO"
-list(n), lappend(n), linsert(n), llength(n), lset(n)
-
+list(n), lappend(n), lassign(n), ledit(n), lindex(n), linsert(n), llength(n),
+lmap(n), lpop(n), lrange(n), lremove(n), lreplace(n),
+lreverse(n), lsearch(n), lseq(n), lset(n), lsort(n)
 .SH KEYWORDS
 element, index, list
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/lreplace.n b/doc/lreplace.n
index 18c6490..6f3fda4 100644
--- a/doc/lreplace.n
+++ b/doc/lreplace.n
@@ -17,9 +17,8 @@ lreplace \- Replace elements in a list with new elements
 .BE
 .SH DESCRIPTION
 .PP
-\fBlreplace\fR returns a new list formed by replacing one or more elements of
+\fBlreplace\fR returns a new list formed by replacing zero or more elements of
 \fIlist\fR with the \fIelement\fR arguments.
-.VS 8.5
 \fIfirst\fR and \fIlast\fR are index values specifying the first and
 last elements of the range to replace.
 The index values \fIfirst\fR and \fIlast\fR are interpreted
@@ -28,38 +27,42 @@ supporting simple index arithmetic and indices relative to the
 end of the list.
 0 refers to the first element of the
 list, and \fBend\fR refers to the last element of the list.
-If \fIlist\fR is empty, then \fIfirst\fR and \fIlast\fR are ignored.
-.VE
 .PP
-If \fIfirst\fR is less than zero, it is considered to refer to before the
-first element of the list.  For non-empty lists, the element indicated
-by \fIfirst\fR must exist or \fIfirst\fR must indicate before the
-start of the list.
+If either \fIfirst\fR or \fIlast\fR is less than zero, it is considered
+to refer to before the first element of the list. This allows \fBlreplace\fR
+to prepend elements to \fIlist\fR.
+If either \fIfirst\fR or \fIlast\fR indicates a position greater than the
+index of the last element of the list, it is treated as if it is an
+index one greater than the last element. This allows \fBlreplace\fR to
+append elements to \fIlist\fR.
 .PP
 If \fIlast\fR is less than \fIfirst\fR, then any specified elements
-will be inserted into the list at the point specified by \fIfirst\fR
+will be inserted into the list before the element specified by \fIfirst\fR
 with no elements being deleted.
 .PP
-The \fIelement\fR arguments specify zero or more new arguments to
+The \fIelement\fR arguments specify zero or more new elements to
 be added to the list in place of those that were deleted.
 Each \fIelement\fR argument will become a separate element of
 the list.  If no \fIelement\fR arguments are specified, then the elements
-between \fIfirst\fR and \fIlast\fR are simply deleted.  If \fIlist\fR
-is empty, any \fIelement\fR arguments are added to the end of the list.
+between \fIfirst\fR and \fIlast\fR are simply deleted.
 .SH EXAMPLES
+.PP
 Replacing an element of a list with another:
+.PP
 .CS
 % \fBlreplace\fR {a b c d e} 1 1 foo
 a foo c d e
 .CE
 .PP
 Replacing two elements of a list with three:
+.PP
 .CS
 % \fBlreplace\fR {a b c d e} 1 2 three more elements
 a three more elements d e
 .CE
 .PP
 Deleting the last element from a list in a variable:
+.PP
 .CS
 % set var {a b c d e}
 a b c d e
@@ -68,6 +71,7 @@ a b c d
 .CE
 .PP
 A procedure to delete a given element from a list:
+.PP
 .CS
 proc lremove {listVariable value} {
     upvar 1 $listVariable var
@@ -75,11 +79,25 @@ proc lremove {listVariable value} {
     set var [\fBlreplace\fR $var $idx $idx]
 }
 .CE
+.PP
+Appending elements to the list; note that \fBend+2\fR will initially
+be treated as if it is \fB6\fR here, but both that and \fB12345\fR are greater
+than the index of the final item so they behave identically:
+.PP
+.CS
+% set var {a b c d e}
+a b c d e
+% set var [\fBlreplace\fR $var 12345 end+2 f g h i]
+a b c d e f g h i
+.CE
 .SH "SEE ALSO"
-list(n), lappend(n), lindex(n), linsert(n), llength(n), lsearch(n),
-lset(n), lrange(n), lsort(n),
-.VS 8.5
+list(n), lappend(n), lassign(n), ledit(n), lindex(n), linsert(n), llength(n),
+lmap(n), lpop(n), lrange(n), lremove(n), lrepeat(n),
+lreverse(n), lsearch(n), lseq(n), lset(n), lsort(n),
 string(n)
-.VE
 .SH KEYWORDS
 element, list, replace
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/lreverse.n b/doc/lreverse.n
index 48886be..bb0703d 100644
--- a/doc/lreverse.n
+++ b/doc/lreverse.n
@@ -1,9 +1,9 @@
-'\" -*- nroff -*-
-'\" Copyright (c) 2006 by Donal K. Fellows.  All rights reserved.
+'\"
+'\" Copyright (c) 2006 Donal K. Fellows.  All rights reserved.
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH lreverse n 8.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -25,7 +25,11 @@ input list, \fIlist\fR, except with the elements in the reverse order.
       \fI\(-> f e {c d} b a\fR
 .CE
 .SH "SEE ALSO"
-list(n), lsearch(n), lsort(n)
-
+list(n), lappend(n), lassign(n), ledit(n), lindex(n), linsert(n), llength(n),
+lmap(n), lpop(n), lrange(n), lremove(n), lrepeat(n), lreplace(n),
+lsearch(n), lseq(n), lset(n), lsort(n)
 .SH KEYWORDS
 element, list, reverse
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/lsearch.n b/doc/lsearch.n
index f7c4976..a661b07 100644
--- a/doc/lsearch.n
+++ b/doc/lsearch.n
@@ -1,4 +1,4 @@
-'\" 
+'\"
 '\" Copyright (c) 1993 The Regents of the University of California.
 '\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
 '\" Copyright (c) 2001 Kevin B. Kenny <kennykb@acm.org>.  All rights reserved.
@@ -6,8 +6,8 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
-.TH lsearch n 8.5 Tcl "Tcl Built-In Commands"
+'\"
+.TH lsearch n 8.6 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
@@ -16,35 +16,44 @@ lsearch \- See if a list contains a particular element
 .SH SYNOPSIS
 \fBlsearch \fR?\fIoptions\fR? \fIlist pattern\fR
 .BE
-
 .SH DESCRIPTION
 .PP
 This command searches the elements of \fIlist\fR to see if one
 of them matches \fIpattern\fR.  If so, the command returns the index
 of the first matching element
 (unless the options \fB\-all\fR or \fB\-inline\fR are specified.)
-If not, the command returns \fB\-1\fR.  The \fIoption\fR arguments
+If not, the command returns \fB\-1\fR or (if options \fB\-all\fR
+or \fB\-inline\fR are specified) the empty string.  The \fIoption\fR arguments
 indicates how the elements of the list are to be matched against
 \fIpattern\fR and must have one of the values below:
 .SS "MATCHING STYLE OPTIONS"
+.PP
 If all matching style options are omitted, the default matching style
 is \fB\-glob\fR.  If more than one matching style is specified, the
 last matching style given takes precedence.
+.\" OPTION: -exact
 .TP
 \fB\-exact\fR
+.
 \fIPattern\fR is a literal string that is compared for exact equality
 against each list element.
+.\" OPTION: -glob
 .TP
 \fB\-glob\fR
+.
 \fIPattern\fR is a glob-style pattern which is matched against each list
 element using the same rules as the \fBstring match\fR command.
+.\" OPTION: -regexp
 .TP
 \fB\-regexp\fR
+.
 \fIPattern\fR is treated as a regular expression and matched against
 each list element using the rules described in the \fBre_syntax\fR
 reference page.
+.\" OPTION: -sorted
 .TP
 \fB\-sorted\fR
+.
 The list elements are in sorted order.  If this option is specified,
 \fBlsearch\fR will use a more efficient searching algorithm to search
 \fIlist\fR.  If no other options are specified, \fIlist\fR is assumed
@@ -53,92 +62,142 @@ option is mutually exclusive with \fB\-glob\fR and \fB\-regexp\fR, and
 is treated exactly like \fB\-exact\fR when either \fB\-all\fR or
 \fB\-not\fR are specified.
 .SS "GENERAL MODIFIER OPTIONS"
+.PP
 These options may be given with all matching styles.
+.\" OPTION: -all
 .TP
 \fB\-all\fR
 .
 Changes the result to be the list of all matching indices (or all matching
 values if \fB\-inline\fR is specified as well.) If indices are returned, the
-indices will be in numeric order. If values are returned, the order of the
-values will be the order of those values within the input \fIlist\fR.
+indices will be in ascending numeric order. If values are returned, the order
+of the values will be the order of those values within the input \fIlist\fR.
+.\" OPTION: -inline
 .TP
 \fB\-inline\fR
+.
 The matching value is returned instead of its index (or an empty
 string if no value matches.)  If \fB\-all\fR is also specified, then
 the result of the command is the list of all values that matched.
+.\" OPTION: -not
 .TP
 \fB\-not\fR
+.
 This negates the sense of the match, returning the index of the first
 non-matching value in the list.
+.\" OPTION: -start
 .TP
 \fB\-start\fR\0\fIindex\fR
+.
 The list is searched starting at position \fIindex\fR.
-.VS 8.5
 The interpretation of the \fIindex\fR value is the same as
 for the command \fBstring index\fR, supporting simple index
 arithmetic and indices relative to the end of the list.
-.VE 8.5
 .SS "CONTENTS DESCRIPTION OPTIONS"
+.PP
 These options describe how to interpret the items in the list being
 searched.  They are only meaningful when used with the \fB\-exact\fR
 and \fB\-sorted\fR options.  If more than one is specified, the last
 one takes precedence.  The default is \fB\-ascii\fR.
+.\" OPTION: -ascii
 .TP
 \fB\-ascii\fR
+.
 The list elements are to be examined as Unicode strings (the name is
 for backward-compatibility reasons.)
+.\" OPTION: -dictionary
 .TP
 \fB\-dictionary\fR
+.
 The list elements are to be compared using dictionary-style
 comparisons (see \fBlsort\fR for a fuller description). Note that this
 only makes a meaningful difference from the \fB\-ascii\fR option when
 the \fB\-sorted\fR option is given, because values are only
 dictionary-equal when exactly equal.
+.\" OPTION: -integer
 .TP
 \fB\-integer\fR
+.
 The list elements are to be compared as integers.
-.VS 8.5
+.\" OPTION: -nocase
 .TP
 \fB\-nocase\fR
+.
 Causes comparisons to be handled in a case-insensitive manner.  Has no
-effect if combined with the \fB\-dictionary\fR, \fB\-integer\fR, or 
+effect if combined with the \fB\-dictionary\fR, \fB\-integer\fR, or
 \fB\-real\fR options.
-.VE 8.5
+.\" OPTION: -real
 .TP
 \fB\-real\fR
+.
 The list elements are to be compared as floating-point values.
 .SS "SORTED LIST OPTIONS"
+.PP
 These options (only meaningful with the \fB\-sorted\fR option) specify
 how the list is sorted.  If more than one is given, the last one takes
 precedence.  The default option is \fB\-increasing\fR.
+.\" OPTION: -decreasing
 .TP
 \fB\-decreasing\fR
+.
 The list elements are sorted in decreasing order.  This option is only
 meaningful when used with \fB\-sorted\fR.
+.\" OPTION: -increasing
 .TP
 \fB\-increasing\fR
+.
 The list elements are sorted in increasing order.  This option is only
 meaningful when used with \fB\-sorted\fR.
+.\" OPTION: -bisect
+.TP
+\fB\-bisect\fR
+.
+Inexact search when the list elements are in sorted order. For an increasing
+list the last index where the element is less than or equal to the pattern
+is returned. For a decreasing list the last index where the element is greater
+than or equal to the pattern is returned. If the pattern is before the first
+element or the list is empty, -1 is returned.
+This option implies \fB\-sorted\fR and cannot be used with either \fB\-all\fR
+or \fB\-not\fR.
 .SS "NESTED LIST OPTIONS"
-.VS 8.5
+.PP
 These options are used to search lists of lists.  They may be used
 with any other options.
+.\" OPTION: -stride
+.TP
+\fB\-stride\0\fIstrideLength\fR
+.
+If this option is specified, the list is treated as consisting of
+groups of \fIstrideLength\fR elements and the groups are searched by
+either their first element or, if the \fB\-index\fR option is used,
+by the element within each group given by the first index passed to
+\fB\-index\fR (which is then ignored by \fB\-index\fR). The resulting
+index always points to the first element in a group.
+.PP
+The list length must be an integer multiple of \fIstrideLength\fR, which
+in turn must be at least 1. A \fIstrideLength\fR of 1 is the default and
+indicates no grouping.
+.\" OPTION: -index
 .TP
 \fB\-index\fR\0\fIindexList\fR
+.
 This option is designed for use when searching within nested lists.
 The \fIindexList\fR argument gives a path of indices (much as might be
 used with the \fBlindex\fR or \fBlset\fR commands) within each element
 to allow the location of the term being matched against.
+.\" OPTION: -subindices
 .TP
 \fB\-subindices\fR
+.
 If this option is given, the index result from this command (or every
 index result when \fB\-all\fR is also specified) will be a complete
 path (suitable for use with \fBlindex\fR or \fBlset\fR) within the
 overall list to the term found.  This option has no effect unless the
-\fI\-index\fR is also specified, and is just a convenience short-cut.
-.VE 8.5
+\fB\-index\fR is also specified, and is just a convenience short-cut.
 .SH EXAMPLES
+.PP
 Basic searching:
+.PP
 .CS
 \fBlsearch\fR {a b c d e} c
       \fI\(-> 2\fR
@@ -147,6 +206,7 @@ Basic searching:
 .CE
 .PP
 Using \fBlsearch\fR to filter lists:
+.PP
 .CS
 \fBlsearch\fR -inline {a20 b35 c47} b*
       \fI\(-> b35\fR
@@ -161,29 +221,40 @@ Using \fBlsearch\fR to filter lists:
 This can even do a
 .QW set-like
 removal operation:
+.PP
 .CS
 \fBlsearch\fR -all -inline -not -exact {a b c a d e a f g a} a
       \fI\(-> b c d e f g\fR
 .CE
 .PP
 Searching may start part-way through the list:
+.PP
 .CS
 \fBlsearch\fR -start 3 {a b c a b c} c
       \fI\(-> 5\fR
 .CE
 .PP
 It is also possible to search inside elements:
+.PP
+.CS
+\fBlsearch\fR -index 1 -all -inline {{abc abc} {abc bcd} {abc cde}} *bc*
+      \fI\(-> {abc abc} {abc bcd}\fR
+.CE
+.PP
+The same thing for a flattened list:
+.PP
 .CS
-\fBlsearch\fR -index 1 -all -inline {{a abc} {b bcd} {c cde}} *bc*
-      \fI\(-> {a abc} {b bcd}\fR
+\fBlsearch\fR -stride 2 -index 1 -all -inline {abc abc abc bcd abc cde} *bc*
+      \fI\(-> abc abc abc bcd\fR
 .CE
 .SH "SEE ALSO"
-foreach(n), list(n), lappend(n), lindex(n), linsert(n), llength(n), 
-lset(n), lsort(n), lrange(n), lreplace(n),
-.VS 8.5
+foreach(n),
+list(n), lappend(n), lassign(n), ledit(n), lindex(n), linsert(n), llength(n),
+lmap(n), lpop(n), lrange(n), lremove(n), lrepeat(n), lreplace(n),
+lreverse(n), lseq(n), lset(n), lsort(n),
 string(n)
-.VE
 .SH KEYWORDS
+binary search, linear search,
 list, match, pattern, regular expression, search, string
 '\" Local Variables:
 '\" mode: nroff
diff --git a/doc/lseq.n b/doc/lseq.n
new file mode 100644
index 0000000..357d11f
--- /dev/null
+++ b/doc/lseq.n
@@ -0,0 +1,123 @@
+'\"
+'\" Copyright (c) 2022 Eric Taylor.  All rights reserved.
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH lseq n 9.0 Tcl "Tcl Built-In Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+lseq \- Build a numeric sequence returned as a list
+.SH SYNOPSIS
+.nf
+\fBlseq \fIstart \fR?(\fB..\fR|\fBto\fR)? \fIend\fR ??\fBby\fR? \fIstep\fR?
+\fBlseq \fIstart \fBcount\fI count\fR ??\fBby\fR? \fIstep\fR?
+\fBlseq \fIcount\fR ?\fBby \fIstep\fR?
+.fi
+.BE
+.SH DESCRIPTION
+.PP
+The \fBlseq\fR command creates a sequence of numeric values using the given
+parameters \fIstart\fR, \fIend\fR, and \fIstep\fR. The \fIoperation\fR
+argument "\fB..\fR" or "\fBto\fR" defines the range. The "\fBcount\fR" option
+is used to define a count of the number of elements in the list. A short form
+use of the command, with a single count value, will create a range from 0 to
+\fIcount\fR-1.
+.PP
+The \fBlseq\fR command can produce both increasing and decreasing
+sequences. When both \fIstart\fR and \fIend\fR are provided without a
+\fIstep\fR value, then if \fIstart\fR <= \fIend\fR, the sequence will be
+increasing and if \fIstart\fR > \fIend\fR it will be decreasing. If a
+\fIstep\fR vale is included, it's sign should agree with the direction of the
+sequence (descending \(-> negative and ascending \(-> positive), otherwise an
+empty list is returned.  For example:
+.RS
+.PP
+.CS \"
+% \fBlseq\fR 1 to 5    ;# increasing
+\fI\(-> 1 2 3 4 5
+
+% \fBlseq\fR 5 to 1    ;# decreasing
+\fI\(-> 5 4 3 2 1
+
+% \fBlseq\fR 6 to 1 by 2   ;# decreasing, step wrong sign, empty list
+
+% \fBlseq\fR 1 to 5 by 0   ;# all step sizes of 0 produce an empty list
+.\"
+.CE
+.RE
+.PP
+The numeric arguments, \fIstart\fR, \fIend\fR, \fIstep\fR, and \fIcount\fR,
+may also be a valid expression. The expression will be evaluated and the
+numeric result will be used.  An expression that does not evaluate to a number
+will produce an invalid argument error.
+.PP
+\fIStart\fR defines the initial value and \fIend\fR defines the limit, not
+necessarily the last value. \fBlseq\fR produces a list with \fIcount\fR
+elements, and if \fIcount\fR is not supplied, it is computed as:
+.RS
+.PP
+.CS
+\fIcount\fR = int( (\fIend\fR - \fIstart\fR + \fIstep\fR) / \fIstep\fR )
+.CE
+.RE
+.SH EXAMPLES
+.CS
+.\"
+\fBlseq\fR 3
+\fI\(-> 0 1 2\fR
+
+\fBlseq\fR 3 0
+\fI\(-> 3 2 1 0\fR
+
+\fBlseq\fR 10 .. 1 by -2
+\fI\(-> 10 8 6 4 2\fR
+
+set l [\fBlseq\fR 0 -5]
+\fI\(-> 0 -1 -2 -3 -4 -5\fR
+
+foreach i [\fBlseq\fR [llength $l]] {
+    puts l($i)=[lindex $l $i]
+}
+\fI\(-> l(0)=0\fR
+\fI\(-> l(1)=-1\fR
+\fI\(-> l(2)=-2\fR
+\fI\(-> l(3)=-3\fR
+\fI\(-> l(4)=-4\fR
+\fI\(-> l(5)=-5\fR
+
+foreach i [\fBlseq\fR {[llength $l]-1} 0] {
+    puts l($i)=[lindex $l $i]
+}
+\fI\(-> l(5)=-5\fR
+\fI\(-> l(4)=-4\fR
+\fI\(-> l(3)=-3\fR
+\fI\(-> l(2)=-2\fR
+\fI\(-> l(1)=-1\fR
+\fI\(-> l(0)=0\fR
+
+set i 17
+         \fI\(-> 17\fR
+if {$i in [\fBlseq\fR 0 50]} { # equivalent to: (0 <= $i && $i <= 50)
+    puts "Ok"
+} else {
+    puts "outside :("
+}
+\fI\(-> Ok\fR
+
+set sqrs [lmap i [\fBlseq\fR 1 10] { expr {$i*$i} }]
+\fI\(-> 1 4 9 16 25 36 49 64 81 100\fR
+.\"
+.CE
+.SH "SEE ALSO"
+foreach(n), list(n), lappend(n), lassign(n), lindex(n), linsert(n), llength(n),
+lmap(n), lpop(n), lrange(n), lremove(n), lreplace(n),
+lreverse(n), lsearch(n), lset(n), lsort(n)
+.SH KEYWORDS
+element, index, list
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/lset.n b/doc/lset.n
index c191ebf..666fc1a 100644
--- a/doc/lset.n
+++ b/doc/lset.n
@@ -1,9 +1,9 @@
 '\"
-'\" Copyright (c) 2001 by Kevin B. Kenny <kennykb@acm.org>.  All rights reserved.
+'\" Copyright (c) 2001 Kevin B. Kenny <kennykb@acm.org>.  All rights reserved.
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH lset n 8.4 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -11,12 +11,12 @@
 .SH NAME
 lset \- Change an element in a list
 .SH SYNOPSIS
-\fBlset \fIvarName ?index...? newValue\fR
+\fBlset \fIvarName ?index ...? newValue\fR
 .BE
 .SH DESCRIPTION
 .PP
 The \fBlset\fR command accepts a parameter, \fIvarName\fR, which
-it interprets as the name of a variable containing a Tcl list. 
+it interprets as the name of a variable containing a Tcl list.
 It also accepts zero or more \fIindices\fR into
 the list.  The indices may be presented either consecutively on the
 command line, or grouped in a
@@ -24,19 +24,23 @@ Tcl list and presented as a single argument.
 Finally, it accepts a new value for an element of \fIvarName\fR.
 .PP
 If no indices are presented, the command takes the form:
+.PP
 .CS
-lset varName newValue
+\fBlset\fR varName newValue
 .CE
+.PP
 or
+.PP
 .CS
-lset varName {} newValue
+\fBlset\fR varName {} newValue
 .CE
+.PP
 In this case, \fInewValue\fR replaces the old value of the variable
 \fIvarName\fR.
 .PP
 When presented with a single index, the \fBlset\fR command
 treats the content of the \fIvarName\fR variable as a Tcl list.
-It addresses the \fIindex\fR'th element in it 
+It addresses the \fIindex\fR'th element in it
 (0 refers to the first element of the list).
 When interpreting the list, \fBlset\fR observes the same rules
 concerning braces and quotes and backslashes as the Tcl command
@@ -47,42 +51,53 @@ replaced with \fInewValue\fR.  This new list is stored in the
 variable \fIvarName\fR, and is also the return value from the \fBlset\fR
 command.
 .PP
-If \fIindex\fR is negative or greater than or equal to the number
+If \fIindex\fR is negative or greater than the number
 of elements in \fI$varName\fR, then an error occurs.
 .PP
-.VS 8.5
+If \fIindex\fR is equal to the number of elements in \fI$varName\fR,
+then the given element is appended to the list.
+.PP
 The interpretation of each simple \fIindex\fR value is the same as
 for the command \fBstring index\fR, supporting simple index
 arithmetic and indices relative to the end of the list.
-.VE 8.5
 .PP
 If additional \fIindex\fR arguments are supplied, then each argument is
 used in turn to address an element within a sublist designated
 by the previous indexing operation,
-allowing the script to alter elements in sublists.  The command,
+allowing the script to alter elements in sublists (or append elements
+to sublists).  The command,
+.PP
 .CS
-lset a 1 2 newValue
+\fBlset\fR a 1 2 newValue
 .CE
+.PP
 or
+.PP
 .CS
-lset a {1 2} newValue
+\fBlset\fR a {1 2} newValue
 .CE
+.PP
 replaces element 2 of sublist 1 with \fInewValue\fR.
 .PP
 The integer appearing in each \fIindex\fR argument must be greater
 than or equal to zero.  The integer appearing in each \fIindex\fR
-argument must be strictly less than the length of the corresponding
-list.  In other words, the \fBlset\fR command cannot change the size
-of a list.  If an index is outside the permitted range, an error is reported.
+argument must be less than or equal to the length of the corresponding
+list.  In other words, the \fBlset\fR command can change the size
+of a list only by appending an element (setting the one after the current
+end).  If an index is outside the permitted range, an error is reported.
 .SH EXAMPLES
+.PP
 In each of these examples, the initial value of \fIx\fR is:
+.PP
 .CS
 set x [list [list a b c] [list d e f] [list g h i]]
       \fI\(-> {a b c} {d e f} {g h i}\fR
 .CE
+.PP
 The indicated return value also becomes the new value of \fIx\fR
 (except in the last case, which is an error which leaves the value of
 \fIx\fR unchanged.)
+.PP
 .CS
 \fBlset\fR x {j k l}
       \fI\(-> j k l\fR
@@ -101,15 +116,21 @@ The indicated return value also becomes the new value of \fIx\fR
 \fBlset\fR x {2 1} j
       \fI\(-> {a b c} {d e f} {g j i}\fR
 \fBlset\fR x {2 3} j
+      \fI\(-> {a b c} {d e f} {g h i j}\fR
+\fBlset\fR x {2 4} j
       \fI\(-> list index out of range\fR
 .CE
+.PP
 In the following examples, the initial value of \fIx\fR is:
+.PP
 .CS
 set x [list [list [list a b] [list c d]] \e
             [list [list e f] [list g h]]]
       \fI\(-> {{a b} {c d}} {{e f} {g h}}\fR
 .CE
+.PP
 The indicated return value also becomes the new value of \fIx\fR.
+.PP
 .CS
 \fBlset\fR x 1 1 0 j
       \fI\(-> {{a b} {c d}} {{e f} {j h}}\fR
@@ -117,12 +138,12 @@ The indicated return value also becomes the new value of \fIx\fR.
       \fI\(-> {{a b} {c d}} {{e f} {j h}}\fR
 .CE
 .SH "SEE ALSO"
-list(n), lappend(n), lindex(n), linsert(n), llength(n), lsearch(n), 
-lsort(n), lrange(n), lreplace(n),
-.VS 8.5
+list(n), lappend(n), lassign(n), ledit(n), lindex(n), linsert(n), llength(n),
+lmap(n), lpop(n), lrange(n), lremove(n), lrepeat(n), lreplace(n),
+lreverse(n), lsearch(n), lseq(n), lsort(n)
 string(n)
-.VE
-
-
 .SH KEYWORDS
 element, index, list, replace, set
+'\"Local Variables:
+'\"mode: nroff
+'\"End:
diff --git a/doc/lsort.n b/doc/lsort.n
index cf0f0ca..4e4f720 100644
--- a/doc/lsort.n
+++ b/doc/lsort.n
@@ -6,7 +6,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH lsort n 8.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -16,38 +16,48 @@ lsort \- Sort the elements of a list
 .SH SYNOPSIS
 \fBlsort \fR?\fIoptions\fR? \fIlist\fR
 .BE
-
 .SH DESCRIPTION
 .PP
 This command sorts the elements of \fIlist\fR, returning a new
 list in sorted order.  The implementation of the \fBlsort\fR command
-uses the merge\-sort algorithm which is a stable sort that has O(n log
+uses the merge-sort algorithm which is a stable sort that has O(n log
 n) performance characteristics.
 .PP
 By default ASCII sorting is used with the result returned in
 increasing order.  However, any of the following options may be
 specified before \fIlist\fR to control the sorting process (unique
 abbreviations are accepted):
-.TP 20
+.\" OPTION: -ascii
+.TP
 \fB\-ascii\fR
+.
 Use string comparison with Unicode code-point collation order (the
 name is for backward-compatibility reasons.)  This is the default.
-.TP 20
+.\" OPTION: -dictionary
+.TP
 \fB\-dictionary\fR
+.
 Use dictionary-style comparison.  This is the same as \fB\-ascii\fR
 except (a) case is ignored except as a tie-breaker and (b) if two
 strings contain embedded numbers, the numbers compare as integers,
 not characters.  For example, in \fB\-dictionary\fR mode, \fBbigBoy\fR
 sorts between \fBbigbang\fR and \fBbigboy\fR, and \fBx10y\fR
-sorts between \fBx9y\fR and \fBx11y\fR.
-.TP 20
+sorts between \fBx9y\fR and \fBx11y\fR. Overrides the \fB\-nocase\fR
+option.
+.\" OPTION: -integer
+.TP
 \fB\-integer\fR
+.
 Convert list elements to integers and use integer comparison.
-.TP 20
+.\" OPTION: -real
+.TP
 \fB\-real\fR
+.
 Convert list elements to floating-point values and use floating comparison.
-.TP 20
+.\" OPTION: -command
+.TP
 \fB\-command\0\fIcommand\fR
+.
 Use \fIcommand\fR as a comparison command.
 To compare two elements, evaluate a Tcl script consisting of
 \fIcommand\fR with the two elements appended as additional
@@ -55,74 +65,116 @@ arguments.  The script should return an integer less than,
 equal to, or greater than zero if the first element is to
 be considered less than, equal to, or greater than the second,
 respectively.
-.TP 20
+.\" OPTION: -increasing
+.TP
 \fB\-increasing\fR
+.
 Sort the list in increasing order
 .PQ smallest "items first" .
 This is the default.
-.TP 20
+.\" OPTION: -decreasing
+.TP
 \fB\-decreasing\fR
+.
 Sort the list in decreasing order
 .PQ largest "items first" .
-.TP 20
+.\" OPTION: -indices
+.TP
 \fB\-indices\fR
-.VS "8.5 (TIP#217)"
+.
 Return a list of indices into \fIlist\fR in sorted order instead of
 the values themselves.
-.VE "8.5 (TIP#217)"
-.TP 20
+.\" OPTION: -index
+.TP
 \fB\-index\0\fIindexList\fR
+.
 If this option is specified, each of the elements of \fIlist\fR must
-itself be a proper Tcl sublist.  Instead of sorting based on whole
-sublists, \fBlsort\fR will extract the \fIindexList\fR'th element from
-each sublist
-.VS 8.5
-(as if the overall element and the \fIindexList\fR were passed to
-\fBlindex\fR) and sort based on the given element.  
-.VE 8.5
+itself be a proper Tcl sublist (unless \fB\-stride\fR is used).
+Instead of sorting based on whole sublists, \fBlsort\fR will extract
+the \fIindexList\fR'th element from each sublist (as if the overall
+element and the \fIindexList\fR were passed to \fBlindex\fR) and sort
+based on the given element.
 For example,
 .RS
+.PP
 .CS
-lsort -integer -index 1 \e
+\fBlsort\fR -integer -index 1 \e
       {{First 24} {Second 18} {Third 30}}
 .CE
-returns \fB{Second 18} {First 24} {Third 30}\fR, and
+.PP
+returns \fB{Second 18} {First 24} {Third 30}\fR,
+.PP
 '\"
 '\" This example is from the test suite!
 '\"
 .CS
-lsort -index end-1 \e
-      {{a 1 e i} {b 2 3 f g} {c 4 5 6 d h}}
+\fBlsort\fR -index end-1 \e
+        {{a 1 e i} {b 2 3 f g} {c 4 5 6 d h}}
 .CE
+.PP
 returns \fB{c 4 5 6 d h} {a 1 e i} {b 2 3 f g}\fR,
-.VS 8.5
 and
+.PP
 .CS
-lsort -index {0 1} {
-   {{b i g} 12345}
-   {{d e m o} 34512}
-   {{c o d e} 54321}
+\fBlsort\fR -index {0 1} {
+    {{b i g} 12345}
+    {{d e m o} 34512}
+    {{c o d e} 54321}
 }
 .CE
+.PP
 returns \fB{{d e m o} 34512} {{b i g} 12345} {{c o d e} 54321}\fR
 (because \fBe\fR sorts before \fBi\fR which sorts before \fBo\fR.)
-.VE 8.5
 This option is much more efficient than using \fB\-command\fR
 to achieve the same effect.
 .RE
-.VS 8.5
-.TP 20
+.\" OPTION: -stride
+.TP
+\fB\-stride\0\fIstrideLength\fR
+.
+If this option is specified, the list is treated as consisting of
+groups of \fIstrideLength\fR elements and the groups are sorted by
+either their first element or, if the \fB\-index\fR option is used,
+by the element within each group given by the first index passed to
+\fB\-index\fR (which is then ignored by \fB\-index\fR). Elements
+always remain in the same position within their group.
+.RS
+.PP
+The list length must be an integer multiple of \fIstrideLength\fR, which
+in turn must be at least 2.
+.PP
+For example,
+.PP
+.CS
+\fBlsort\fR -stride 2 {carrot 10 apple 50 banana 25}
+.CE
+.PP
+returns
+.QW "apple 50 banana 25 carrot 10" ,
+and
+.PP
+.CS
+\fBlsort\fR -stride 2 -index 1 -integer {carrot 10 apple 50 banana 25}
+.CE
+.PP
+returns
+.QW "carrot 10 banana 25 apple 50" .
+.RE
+.\" OPTION: -nocase
+.TP
 \fB\-nocase\fR
+.
 Causes comparisons to be handled in a case-insensitive manner.  Has no
-effect if combined with the \fB\-dictionary\fR, \fB\-integer\fR, or 
+effect if combined with the \fB\-dictionary\fR, \fB\-integer\fR, or
 \fB\-real\fR options.
-.VE 8.5
-.TP 20
+.\" OPTION: -unique
+.TP
 \fB\-unique\fR
+.
 If this option is specified, then only the last set of duplicate
 elements found in the list will be retained.  Note that duplicates are
-determined relative to the comparison used in the sort.  Thus if 
-\fI\-index 0\fR is used, \fB{1 a}\fR and \fB{1 b}\fR would be
+determined relative to the comparison used in the sort.  Thus if
+\fB\-index 0\fR is used, \fB{1 a}\fR and \fB{1 b}\fR would be
 considered duplicates and only the second element, \fB{1 b}\fR, would
 be retained.
 .SH "NOTES"
@@ -138,53 +190,78 @@ option.
 .SH "EXAMPLES"
 .PP
 Sorting a list using ASCII sorting:
+.PP
 .CS
-% \fBlsort\fR {a10 B2 b1 a1 a2}
+\fI%\fR \fBlsort\fR {a10 B2 b1 a1 a2}
 B2 a1 a10 a2 b1
 .CE
 .PP
 Sorting a list using Dictionary sorting:
+.PP
 .CS
-% \fBlsort\fR -dictionary {a10 B2 b1 a1 a2}
+\fI%\fR \fBlsort\fR -dictionary {a10 B2 b1 a1 a2}
 a1 a2 a10 b1 B2
 .CE
 .PP
 Sorting lists of integers:
+.PP
 .CS
-% \fBlsort\fR -integer {5 3 1 2 11 4}
+\fI%\fR \fBlsort\fR -integer {5 3 1 2 11 4}
 1 2 3 4 5 11
-% \fBlsort\fR -integer {1 2 0x5 7 0 4 -1}
+\fI%\fR \fBlsort\fR -integer {1 2 0x5 7 0 4 -1}
 -1 0 1 2 4 0x5 7
 .CE
 .PP
 Sorting lists of floating-point numbers:
+.PP
 .CS
-% \fBlsort\fR -real {5 3 1 2 11 4}
+\fI%\fR \fBlsort\fR -real {5 3 1 2 11 4}
 1 2 3 4 5 11
-% \fBlsort\fR -real {.5 0.07e1 0.4 6e-1}
+\fI%\fR \fBlsort\fR -real {.5 0.07e1 0.4 6e-1}
 0.4 .5 6e-1 0.07e1
 .CE
 .PP
 Sorting using indices:
+.PP
 .CS
-% # Note the space character before the c
-% \fBlsort\fR {{a 5} { c 3} {b 4} {e 1} {d 2}}
+\fI%\fR # Note the space character before the c
+\fI%\fR \fBlsort\fR {{a 5} { c 3} {b 4} {e 1} {d 2}}
 { c 3} {a 5} {b 4} {d 2} {e 1}
-% \fBlsort\fR -index 0 {{a 5} { c 3} {b 4} {e 1} {d 2}}
+\fI%\fR \fBlsort\fR -index 0 {{a 5} { c 3} {b 4} {e 1} {d 2}}
 {a 5} {b 4} { c 3} {d 2} {e 1}
-% \fBlsort\fR -index 1 {{a 5} { c 3} {b 4} {e 1} {d 2}}
+\fI%\fR \fBlsort\fR -index 1 {{a 5} { c 3} {b 4} {e 1} {d 2}}
 {e 1} {d 2} { c 3} {b 4} {a 5}
 .CE
 .PP
+Sorting a dictionary:
+.PP
+.CS
+\fI%\fR set d [dict create c d a b h i f g c e]
+c e a b h i f g
+\fI%\fR \fBlsort\fR -stride 2 $d
+a b c e f g h i
+.CE
+.PP
+Sorting using striding and multiple indices:
+.PP
+.CS
+\fI%\fR # Note the first index value is relative to the group
+\fI%\fR \fBlsort\fR -stride 3 -index {0 1} \e
+     {{Bob Smith} 25 Audi {Jane Doe} 40 Ford}
+{{Jane Doe} 40 Ford {Bob Smith} 25 Audi}
+.CE
+.PP
 Stripping duplicate values using sorting:
+.PP
 .CS
-% \fBlsort\fR -unique {a b c a b c a b c}
+\fI%\fR \fBlsort\fR -unique {a b c a b c a b c}
 a b c
 .CE
 .PP
 More complex sorting using a comparison function:
+.PP
 .CS
-% proc compare {a b} {
+\fI%\fR proc compare {a b} {
     set a0 [lindex $a 0]
     set b0 [lindex $b 0]
     if {$a0 < $b0} {
@@ -194,14 +271,16 @@ More complex sorting using a comparison function:
     }
     return [string compare [lindex $a 1] [lindex $b 1]]
 }
-% \fBlsort\fR -command compare \e
+\fI%\fR \fBlsort\fR -command compare \e
         {{3 apple} {0x2 carrot} {1 dingo} {2 banana}}
 {1 dingo} {2 banana} {0x2 carrot} {3 apple}
 .CE
-
 .SH "SEE ALSO"
-list(n), lappend(n), lindex(n), linsert(n), llength(n), lsearch(n), 
-lset(n), lrange(n), lreplace(n)
-
+list(n), lappend(n), lassign(n), ledit(n), lindex(n), linsert(n), llength(n),
+lmap(n), lpop(n), lrange(n), lremove(n), lrepeat(n), lreplace(n),
+lreverse(n), lsearch(n), lseq(n), lset(n)
 .SH KEYWORDS
 element, list, order, sort
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/mathfunc.n b/doc/mathfunc.n
index c5ef6e0..f0d296d 100644
--- a/doc/mathfunc.n
+++ b/doc/mathfunc.n
@@ -1,11 +1,11 @@
 '\"
 '\" Copyright (c) 1993 The Regents of the University of California.
 '\" Copyright (c) 1994-2000 Sun Microsystems, Inc.
-'\" Copyright (c) 2005 by Kevin B. Kenny <kennykb@acm.org>. All rights reserved
+'\" Copyright (c) 2005 Kevin B. Kenny <kennykb@acm.org>. All rights reserved
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH mathfunc n 8.5 Tcl "Tcl Mathematical Functions"
 .so man.macros
 .BS
@@ -13,72 +13,51 @@
 .SH NAME
 mathfunc \- Mathematical functions for Tcl expressions
 .SH SYNOPSIS
-package require \fBTcl 8.5\fR
-.sp
-\fB::tcl::mathfunc::abs\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::acos\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::asin\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::atan\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::atan2\fR \fIy\fR \fIx\fR
-.br
-\fB::tcl::mathfunc::bool\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::ceil\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::cos\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::cosh\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::double\fR \fIarg\fR
-.br
-.VS 8.5
-\fB::tcl::mathfunc::entier\fR \fIarg\fR
-.br
-.VE 8.5
-\fB::tcl::mathfunc::exp\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::floor\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::fmod\fR \fIx\fR \fIy\fR
-.br
-\fB::tcl::mathfunc::hypot\fR \fIx\fR \fIy\fR
-.br
-\fB::tcl::mathfunc::int\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::isqrt\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::log\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::log10\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::max\fR \fIarg\fR ?\fIarg\fR ...?
-.br
-\fB::tcl::mathfunc::min\fR \fIarg\fR ?\fIarg\fR ...?
-.br
-\fB::tcl::mathfunc::pow\fR \fIx\fR \fIy\fR
-.br
+.nf
+package require \fBTcl 8.5-\fR
+
+\fB::tcl::mathfunc::abs\fI arg\fR
+\fB::tcl::mathfunc::acos\fI arg\fR
+\fB::tcl::mathfunc::asin\fI arg\fR
+\fB::tcl::mathfunc::atan\fI arg\fR
+\fB::tcl::mathfunc::atan2\fI y x\fR
+\fB::tcl::mathfunc::bool\fI arg\fR
+\fB::tcl::mathfunc::ceil\fI arg\fR
+\fB::tcl::mathfunc::cos\fI arg\fR
+\fB::tcl::mathfunc::cosh\fI arg\fR
+\fB::tcl::mathfunc::double\fI arg\fR
+\fB::tcl::mathfunc::entier\fI arg\fR
+\fB::tcl::mathfunc::exp\fI arg\fR
+\fB::tcl::mathfunc::floor\fI arg\fR
+\fB::tcl::mathfunc::fmod\fI x y\fR
+\fB::tcl::mathfunc::hypot\fI x y\fR
+\fB::tcl::mathfunc::int\fI arg\fR
+.VS TIP521
+\fB::tcl::mathfunc::isfinite\fI arg\fR
+\fB::tcl::mathfunc::isinf\fI arg\fR
+\fB::tcl::mathfunc::isnan\fI arg\fR
+\fB::tcl::mathfunc::isnormal\fI arg\fR
+.VE TIP521
+\fB::tcl::mathfunc::isqrt\fI arg\fR
+.VS TIP521
+\fB::tcl::mathfunc::issubnormal\fI arg\fR
+\fB::tcl::mathfunc::isunordered\fI x y\fR
+.VE TIP521
+\fB::tcl::mathfunc::log\fI arg\fR
+\fB::tcl::mathfunc::log10\fI arg\fR
+\fB::tcl::mathfunc::max\fI arg\fR ?\fIarg\fR ...?
+\fB::tcl::mathfunc::min\fI arg\fR ?\fIarg\fR ...?
+\fB::tcl::mathfunc::pow\fI x y\fR
 \fB::tcl::mathfunc::rand\fR
-.br
-\fB::tcl::mathfunc::round\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::sin\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::sinh\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::sqrt\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::srand\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::tan\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::tanh\fR \fIarg\fR
-.br
-\fB::tcl::mathfunc::wide\fR \fIarg\fR
-.sp
+\fB::tcl::mathfunc::round\fI arg\fR
+\fB::tcl::mathfunc::sin\fI arg\fR
+\fB::tcl::mathfunc::sinh\fI arg\fR
+\fB::tcl::mathfunc::sqrt\fI arg\fR
+\fB::tcl::mathfunc::srand\fI arg\fR
+\fB::tcl::mathfunc::tan\fI arg\fR
+\fB::tcl::mathfunc::tanh\fI arg\fR
+\fB::tcl::mathfunc::wide\fI arg\fR
+.fi
 .BE
 .SH "DESCRIPTION"
 .PP
@@ -94,178 +73,295 @@ directly.
 Tcl supports the following mathematical functions in expressions, all
 of which work solely with floating-point numbers unless otherwise noted:
 .DS
-.ta 3c 6c 9c
+.ta 3.2c 6.4c 9.6c
 \fBabs\fR	\fBacos\fR	\fBasin\fR	\fBatan\fR
 \fBatan2\fR	\fBbool\fR	\fBceil\fR	\fBcos\fR
 \fBcosh\fR	\fBdouble\fR	\fBentier\fR	\fBexp\fR
 \fBfloor\fR	\fBfmod\fR	\fBhypot\fR	\fBint\fR
-\fBisqrt\fR	\fBlog\fR	\fBlog10\fR	\fBmax\fR
-\fBmin\fR	\fBpow\fR	\fBrand\fR	\fBround\fR
-\fBsin\fR	\fBsinh\fR	\fBsqrt\fR	\fBsrand\fR
-\fBtan\fR	\fBtanh\fR	\fBwide\fR
+\fBisfinite\fR	\fBisinf\fR	\fBisnan\fR	\fBisnormal\fR
+\fBisqrt\fR	\fBissubnormal\fR	\fBisunordered\fR	\fBlog\fR
+\fBlog10\fR	\fBmax\fR	\fBmin\fR	\fBpow\fR
+\fBrand\fR	\fBround\fR	\fBsin\fR	\fBsinh\fR
+\fBsqrt\fR	\fBsrand\fR	\fBtan\fR	\fBtanh\fR
+\fBwide\fR
 .DE
 .PP
 In addition to these predefined functions, applications may
 define additional functions by using \fBproc\fR (or any other method,
 such as \fBinterp alias\fR or \fBTcl_CreateObjCommand\fR) to define
-new commands in the \fBtcl::mathfunc\fR namespace.  In addition, an
-obsolete interface named \fBTcl_CreateMathFunc\fR() is available to
-extensions that are written in C. The latter interface is not recommended
-for new implementations.
+new commands in the \fBtcl::mathfunc\fR namespace.
 .SS "DETAILED DEFINITIONS"
+.\" COMMAND: abs
 .TP
 \fBabs \fIarg\fR
+.
 Returns the absolute value of \fIarg\fR.  \fIArg\fR may be either
 integer or floating-point, and the result is returned in the same form.
+.\" COMMAND: acos
 .TP
 \fBacos \fIarg\fR
+.
 Returns the arc cosine of \fIarg\fR, in the range [\fI0\fR,\fIpi\fR]
 radians. \fIArg\fR should be in the range [\fI\-1\fR,\fI1\fR].
+.\" COMMAND: asin
 .TP
 \fBasin \fIarg\fR
+.
 Returns the arc sine of \fIarg\fR, in the range [\fI\-pi/2\fR,\fIpi/2\fR]
 radians.  \fIArg\fR should be in the range [\fI\-1\fR,\fI1\fR].
+.\" COMMAND: atan
 .TP
 \fBatan \fIarg\fR
+.
 Returns the arc tangent of \fIarg\fR, in the range [\fI\-pi/2\fR,\fIpi/2\fR]
 radians.
+.\" COMMAND: atan2
 .TP
 \fBatan2 \fIy x\fR
+.
 Returns the arc tangent of \fIy\fR/\fIx\fR, in the range [\fI\-pi\fR,\fIpi\fR]
 radians.  \fIx\fR and \fIy\fR cannot both be 0.  If \fIx\fR is greater
 than \fI0\fR, this is equivalent to
 .QW "\fBatan \fR[\fBexpr\fR {\fIy\fB/\fIx\fR}]" .
+.\" COMMAND: bool
 .TP
 \fBbool \fIarg\fR
+.
 Accepts any numeric value, or any string acceptable to
-\fBstring is boolean\fR, and returns the corresponding 
+\fBstring is boolean\fR, and returns the corresponding
 boolean value \fB0\fR or \fB1\fR.  Non-zero numbers are true.
 Other numbers are false.  Non-numeric strings produce boolean value in
 agreement with \fBstring is true\fR and \fBstring is false\fR.
+.\" COMMAND: ceil
 .TP
 \fBceil \fIarg\fR
+.
 Returns the smallest integral floating-point value (i.e. with a zero
 fractional part) not less than \fIarg\fR.  The argument may be any
 numeric value.
+.\" COMMAND: cos
 .TP
 \fBcos \fIarg\fR
+.
 Returns the cosine of \fIarg\fR, measured in radians.
+.\" COMMAND: cosh
 .TP
 \fBcosh \fIarg\fR
+.
 Returns the hyperbolic cosine of \fIarg\fR.  If the result would cause
 an overflow, an error is returned.
+.\" COMMAND: double
 .TP
 \fBdouble \fIarg\fR
+.
 The argument may be any numeric value,
 If \fIarg\fR is a floating-point value, returns \fIarg\fR, otherwise converts
 \fIarg\fR to floating-point and returns the converted value.  May return
 \fBInf\fR or \fB\-Inf\fR when the argument is a numeric value that exceeds
 the floating-point range.
+.\" COMMAND: entier
 .TP
 \fBentier \fIarg\fR
-.VS 8.5
+.
 The argument may be any numeric value.  The integer part of \fIarg\fR
 is determined and returned.  The integer range returned by this function
 is unlimited, unlike \fBint\fR and \fBwide\fR which
 truncate their range to fit in particular storage widths.
-.VE 8.5
+.\" COMMAND: exp
 .TP
 \fBexp \fIarg\fR
+.
 Returns the exponential of \fIarg\fR, defined as \fIe\fR**\fIarg\fR.
 If the result would cause an overflow, an error is returned.
+.\" COMMAND: floor
 .TP
 \fBfloor \fIarg\fR
+.
 Returns the largest integral floating-point value (i.e. with a zero
 fractional part) not greater than \fIarg\fR.  The argument may be
 any numeric value.
+.\" COMMAND: fmod
 .TP
 \fBfmod \fIx y\fR
+.
 Returns the floating-point remainder of the division of \fIx\fR by
 \fIy\fR.  If \fIy\fR is 0, an error is returned.
+.\" COMMAND: hypot
 .TP
 \fBhypot \fIx y\fR
-Computes the length of the hypotenuse of a right-angled triangle
-.QW "\fBsqrt\fR [\fBexpr\fR {\fIx\fB*\fIx\fB+\fIy\fB*\fIy\fR}]".
+.
+Computes the length of the hypotenuse of a right-angled triangle,
+approximately
+.QW "\fBsqrt\fR [\fBexpr\fR {\fIx\fB*\fIx\fB+\fIy\fB*\fIy\fR}]"
+except for being more numerically stable when the two arguments have
+substantially different magnitudes.
+.\" COMMAND: int
 .TP
 \fBint \fIarg\fR
+.
 The argument may be any numeric value.  The integer part of \fIarg\fR
 is determined, and then the low order bits of that integer value up
 to the machine word size are returned as an integer value.  For reference,
-the number of bytes in the machine word are stored in
-\fBtcl_platform(wordSize)\fR.
+the number of bytes in the machine word are stored in the \fBwordSize\fR
+element of the \fBtcl_platform\fR array.
+.\" COMMAND: isfinite
+.TP
+\fBisfinite \fIarg\fR
+.VS TIP521
+Returns 1 if the floating-point number \fIarg\fR is finite. That is, if it is
+zero, subnormal, or normal. Returns 0 if the number is infinite or NaN. Throws
+an error if \fIarg\fR cannot be promoted to a floating-point value.
+.VE TIP521
+.\" COMMAND: isinf
+.TP
+\fBisinf \fIarg\fR
+.VS TIP521
+Returns 1 if the floating-point number \fIarg\fR is infinite. Returns 0 if the
+number is finite or NaN. Throws an error if \fIarg\fR cannot be promoted to a
+floating-point value.
+.VE TIP521
+.\" COMMAND: isnan
+.TP
+\fBisnan \fIarg\fR
+.VS TIP521
+Returns 1 if the floating-point number \fIarg\fR is Not-a-Number. Returns 0 if
+the number is finite or infinite. Throws an error if \fIarg\fR cannot be
+promoted to a floating-point value.
+.VE TIP521
+.\" COMMAND: isnormal
+.TP
+\fBisnormal \fIarg\fR
+.VS TIP521
+Returns 1 if the floating-point number \fIarg\fR is normal. Returns 0 if the
+number is zero, subnormal, infinite or NaN. Throws an error if \fIarg\fR
+cannot be promoted to a floating-point value.
+.VE TIP521
+.\" COMMAND: isqrt
 .TP
 \fBisqrt \fIarg\fR
+.
 Computes the integer part of the square root of \fIarg\fR.  \fIArg\fR must be
 a positive value, either an integer or a floating point number.
 Unlike \fBsqrt\fR, which is limited to the precision of a floating point
 number, \fIisqrt\fR will return a result of arbitrary precision.
+.\" COMMAND: issubnormal
+.TP
+\fBissubnormal \fIarg\fR
+.VS TIP521
+Returns 1 if the floating-point number \fIarg\fR is subnormal, i.e., the
+result of gradual underflow. Returns 0 if the number is zero, normal, infinite
+or NaN. Throws an error if \fIarg\fR cannot be promoted to a floating-point
+value.
+.VE TIP521
+.\" COMMAND: isunordered
+.TP
+\fBisunordered \fIx y\fR
+.VS TIP521
+Returns 1 if \fIx\fR and \fIy\fR cannot be compared for ordering, that is, if
+either one is NaN. Returns 0 if both values can be ordered, that is, if they
+are both chosen from among the set of zero, subnormal, normal and infinite
+values. Throws an error if either \fIx\fR or \fIy\fR cannot be promoted to a
+floating-point value.
+.VE TIP521
+.\" COMMAND: log
 .TP
 \fBlog \fIarg\fR
+.
 Returns the natural logarithm of \fIarg\fR.  \fIArg\fR must be a
 positive value.
+.\" COMMAND: log10
 .TP
 \fBlog10 \fIarg\fR
+.
 Returns the base 10 logarithm of \fIarg\fR.  \fIArg\fR must be a
 positive value.
+.\" COMMAND: max
 .TP
 \fBmax \fIarg\fB \fI...\fR
+.
 Accepts one or more numeric arguments.  Returns the one argument
 with the greatest value.
+.\" COMMAND: min
 .TP
 \fBmin \fIarg\fB \fI...\fR
+.
 Accepts one or more numeric arguments.  Returns the one argument
 with the least value.
+.\" COMMAND: pow
 .TP
 \fBpow \fIx y\fR
+.
 Computes the value of \fIx\fR raised to the power \fIy\fR.  If \fIx\fR
 is negative, \fIy\fR must be an integer value.
+.\" COMMAND: rand
 .TP
 \fBrand\fR
-Returns a pseudo-random floating-point value in the range (\fI0\fR,\fI1\fR).  
+.
+Returns a pseudo-random floating-point value in the range (\fI0\fR,\fI1\fR).
 The generator algorithm is a simple linear congruential generator that
 is not cryptographically secure.  Each result from \fBrand\fR completely
 determines all future results from subsequent calls to \fBrand\fR, so
 \fBrand\fR should not be used to generate a sequence of secrets, such as
 one-time passwords.  The seed of the generator is initialized from the
 internal clock of the machine or may be set with the \fBsrand\fR function.
+.\" COMMAND: round
 .TP
 \fBround \fIarg\fR
+.
 If \fIarg\fR is an integer value, returns \fIarg\fR, otherwise converts
 \fIarg\fR to integer by rounding and returns the converted value.
+.\" COMMAND: sin
 .TP
 \fBsin \fIarg\fR
+.
 Returns the sine of \fIarg\fR, measured in radians.
+.\" COMMAND: sinh
 .TP
 \fBsinh \fIarg\fR
+.
 Returns the hyperbolic sine of \fIarg\fR.  If the result would cause
 an overflow, an error is returned.
+.\" COMMAND: sqrt
 .TP
 \fBsqrt \fIarg\fR
+.
 The argument may be any non-negative numeric value.  Returns a floating-point
 value that is the square root of \fIarg\fR.  May return \fBInf\fR when the
 argument is a numeric value that exceeds the square of the maximum value of
 the floating-point range.
+.\" COMMAND: srand
 .TP
 \fBsrand \fIarg\fR
+.
 The \fIarg\fR, which must be an integer, is used to reset the seed for
 the random number generator of \fBrand\fR.  Returns the first random
 number (see \fBrand\fR) from that seed.  Each interpreter has its own seed.
+.\" COMMAND: tan
 .TP
 \fBtan \fIarg\fR
+.
 Returns the tangent of \fIarg\fR, measured in radians.
+.\" COMMAND: tanh
 .TP
 \fBtanh \fIarg\fR
+.
 Returns the hyperbolic tangent of \fIarg\fR.
+.\" COMMAND: wide
 .TP
 \fBwide \fIarg\fR
+.
 The argument may be any numeric value.  The integer part of \fIarg\fR
 is determined, and then the low order 64 bits of that integer value
-are returned as an integer value.  
+are returned as an integer value.
 .SH "SEE ALSO"
-expr(n), mathop(n), namespace(n)
+expr(n), fpclassify(n), mathop(n), namespace(n)
 .SH "COPYRIGHT"
 .nf
-Copyright (c) 1993 The Regents of the University of California.
-Copyright (c) 1994-2000 Sun Microsystems Incorporated.
-Copyright (c) 2005, 2006 by Kevin B. Kenny <kennykb@acm.org>.
+Copyright \(co 1993 The Regents of the University of California.
+Copyright \(co 1994-2000 Sun Microsystems Incorporated.
+Copyright \(co 2005-2006 Kevin B. Kenny <kennykb@acm.org>.
 .fi
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/mathop.n b/doc/mathop.n
index 1ddd86e..38b862b 100644
--- a/doc/mathop.n
+++ b/doc/mathop.n
@@ -1,4 +1,4 @@
-.\" -*- nroff -*-
+.\"
 .\" Copyright (c) 2006-2007 Donal K. Fellows.
 .\"
 .\" See the file "license.terms" for information on usage and redistribution
@@ -11,54 +11,39 @@
 .SH NAME
 mathop \- Mathematical operators as Tcl commands
 .SH SYNOPSIS
-package require \fBTcl 8.5\fR
-.sp
-\fB::tcl::mathop::!\fR \fInumber\fR
-.br
-\fB::tcl::mathop::~\fR \fInumber\fR
-.br
+.nf
+package require \fBTcl 8.5-\fR
+
+\fB::tcl::mathop::!\fI number\fR
+\fB::tcl::mathop::~\fI number\fR
 \fB::tcl::mathop::+\fR ?\fInumber\fR ...?
-.br
-\fB::tcl::mathop::\-\fR \fInumber\fR ?\fInumber\fR ...?
-.br
+\fB::tcl::mathop::\-\fI number\fR ?\fInumber\fR ...?
 \fB::tcl::mathop::*\fR ?\fInumber\fR ...?
-.br
-\fB::tcl::mathop::/\fR \fInumber\fR ?\fInumber\fR ...?
-.br
-\fB::tcl::mathop::%\fR \fInumber number\fR
-.br
+\fB::tcl::mathop::/\fI number\fR ?\fInumber\fR ...?
+\fB::tcl::mathop::%\fI number number\fR
 \fB::tcl::mathop::**\fR ?\fInumber\fR ...?
-.br
 \fB::tcl::mathop::&\fR ?\fInumber\fR ...?
-.br
 \fB::tcl::mathop::|\fR ?\fInumber\fR ...?
-.br
 \fB::tcl::mathop::^\fR ?\fInumber\fR ...?
-.br
-\fB::tcl::mathop::<<\fR \fInumber number\fR
-.br
-\fB::tcl::mathop::>>\fR \fInumber number\fR
-.br
+\fB::tcl::mathop::<<\fI number number\fR
+\fB::tcl::mathop::>>\fI number number\fR
 \fB::tcl::mathop::==\fR ?\fIarg\fR ...?
-.br
-\fB::tcl::mathop::!=\fR \fIarg arg\fR
-.br
+\fB::tcl::mathop::!=\fI arg arg\fR
 \fB::tcl::mathop::<\fR ?\fIarg\fR ...?
-.br
 \fB::tcl::mathop::<=\fR ?\fIarg\fR ...?
-.br
 \fB::tcl::mathop::>=\fR ?\fIarg\fR ...?
-.br
 \fB::tcl::mathop::>\fR ?\fIarg\fR ...?
-.br
 \fB::tcl::mathop::eq\fR ?\fIarg\fR ...?
-.br
-\fB::tcl::mathop::ne\fR \fIarg arg\fR
-.br
-\fB::tcl::mathop::in\fR \fIarg list\fR
-.br
-\fB::tcl::mathop::ni\fR \fIarg list\fR
-.sp
+\fB::tcl::mathop::ne\fI arg arg\fR
+.VS TIP461
+\fB::tcl::mathop::lt\fR ?\fIarg\fR ...?
+\fB::tcl::mathop::le\fR ?\fIarg\fR ...?
+\fB::tcl::mathop::gt\fR ?\fIarg\fR ...?
+\fB::tcl::mathop::ge\fR ?\fIarg\fR ...?
+.VE TIP461
+\fB::tcl::mathop::in\fI arg list\fR
+\fB::tcl::mathop::ni\fI arg list\fR
+.fi
 .BE
 .SH DESCRIPTION
 .PP
@@ -76,39 +61,45 @@ The following operator commands are supported:
 \fB/\fR	\fB%\fR	\fB**\fR	\fB&\fR	\fB|\fR
 \fB^\fR	\fB>>\fR	\fB<<\fR	\fB==\fR	\fBeq\fR
 \fB!=\fR	\fBne\fR	\fB<\fR	\fB<=\fR	\fB>\fR
-\fB>=\fR	\fBin\fR	\fBni\fR
+\fB>=\fR	\fBin\fR	\fBni\fR	\fBlt\fR	\fBle\fR
+\fBgt\fR	\fBge\fR
 .DE
 .SS "MATHEMATICAL OPERATORS"
 .PP
 The behaviors of the mathematical operator commands are as follows:
+.\" COMMAND: !
 .TP
-\fB!\fR \fIboolean\fR
+\fB!\fI boolean\fR
 .
 Returns the boolean negation of \fIboolean\fR, where \fIboolean\fR may be any
 numeric value or any other form of boolean value (i.e. it returns truth if the
 argument is falsity or zero, and falsity if the argument is truth or
 non-zero).
+.\" COMMAND: +
 .TP
 \fB+\fR ?\fInumber\fR ...?
 .
 Returns the sum of arbitrarily many arguments. Each \fInumber\fR argument may
 be any numeric value. If no arguments are given, the result will be zero (the
 summation identity).
+.\" COMMAND: -
 .TP
-\fB\-\fR \fInumber\fR ?\fInumber\fR ...?
+\fB\-\fI number\fR ?\fInumber\fR ...?
 .
 If only a single \fInumber\fR argument is given, returns the negation of that
 numeric value. Otherwise returns the number that results when all subsequent
 numeric values are subtracted from the first one. All \fInumber\fR arguments
 must be numeric values. At least one argument must be given.
+.\" COMMAND: *
 .TP
 \fB*\fR ?\fInumber\fR ...?
 .
 Returns the product of arbitrarily many arguments. Each \fInumber\fR may be
 any numeric value. If no arguments are given, the result will be one (the
 multiplicative identity).
+.\" COMMAND: /
 .TP
-\fB/\fR \fInumber\fR ?\fInumber\fR ...?
+\fB/\fI number\fR ?\fInumber\fR ...?
 .
 If only a single \fInumber\fR argument is given, returns the reciprocal of that
 numeric value (i.e. the value obtained by dividing 1.0 by that value).
@@ -123,8 +114,9 @@ results will be as if the functions \fIfloor\fR and \fIint\fR are applied to
 them, in that order). If all values in the operation are integers, the result
 will be an integer.
 .RE
+.\" COMMAND: %
 .TP
-\fB%\fR \fInumber number\fR
+\fB%\fI number number\fR
 .
 Returns the integral modulus (i.e., remainder) of the first argument
 with respect to the second.
@@ -138,9 +130,10 @@ that the following command returns a true value (omitting the namespace for
 clarity):
 .PP
 .CS
-\fB==\fR [\fB*\fR [\fB/\fI x y\fR] \fIy\fR] [\fB-\fI x\fR [\fB%\fI x y\fR]]
+\fB==\fR [\fB*\fR [\fB/\fI x y\fR] \fIy\fR] [\fB\-\fI x\fR [\fB%\fI x y\fR]]
 .CE
 .RE
+.\" COMMAND: **
 .TP
 \fB**\fR ?\fInumber\fR ...?
 .
@@ -151,14 +144,16 @@ is the same as
 .QW "\fB** 2 [** 3 4]\fR" .
 Each \fInumber\fR may be
 any numeric value, though the second number must not be fractional if the
-first is negative. If no arguments are given, the result will be one, and if
-only one argument is given, the result will be that argument. The
-result will have an integral value only when all arguments are
-integral values.
+first is negative.  The maximum exponent value that Tcl can handle if the
+first number is an integer > 1 is 268435455. If no arguments are given,
+the result will be one, and if only one argument is given, the result will
+be that argument. The result will have an integral value only when all
+arguments are integral values.
 .SS "COMPARISON OPERATORS"
 .PP
 The behaviors of the comparison operator commands (most of which operate
 preferentially on numeric arguments) are as follows:
+.\" COMMAND: ==
 .TP
 \fB==\fR ?\fIarg\fR ...?
 .
@@ -166,23 +161,27 @@ Returns whether each argument is equal to the arguments on each side of it in
 the sense of the \fBexpr\fR == operator (\fIi.e.\fR, numeric comparison if
 possible, exact string comparison otherwise). If fewer than two arguments
 are given, this operation always returns a true value.
+.\" COMMAND: eq
 .TP
 \fBeq\fR ?\fIarg\fR ...?
 .
 Returns whether each argument is equal to the arguments on each side of it
 using exact string comparison. If fewer than two arguments are given, this
 operation always returns a true value.
+.\" COMMAND: !=
 .TP
-\fB!=\fR \fIarg arg\fR
+\fB!=\fI arg arg\fR
 .
 Returns whether the two arguments are not equal to each other, in the sense of
 the \fBexpr\fR != operator (\fIi.e.\fR, numeric comparison if possible, exact
 string comparison otherwise).
+.\" COMMAND: ne
 .TP
-\fBne\fR \fIarg arg\fR
+\fBne\fI arg arg\fR
 .
 Returns whether the two arguments are not equal to each other using exact
 string comparison.
+.\" COMMAND: <
 .TP
 \fB<\fR ?\fIarg\fR ...?
 .
@@ -191,8 +190,9 @@ after the first having to be strictly more than the one preceding it.
 Comparisons are performed preferentially on the numeric values, and are
 otherwise performed using UNICODE string comparison. If fewer than two
 arguments are present, this operation always returns a true value. When the
-arguments are numeric but should be compared as strings, the \fBstring
-compare\fR command should be used instead.
+arguments are numeric but should be compared as strings, the \fBlt\fR
+operator or the \fBstring compare\fR command should be used instead.
+.\" COMMAND: <=
 .TP
 \fB<=\fR ?\fIarg\fR ...?
 .
@@ -201,8 +201,9 @@ after the first having to be equal to or more than the one preceding it.
 Comparisons are performed preferentially on the numeric values, and are
 otherwise performed using UNICODE string comparison. If fewer than two
 arguments are present, this operation always returns a true value. When the
-arguments are numeric but should be compared as strings, the \fBstring
-compare\fR command should be used instead.
+arguments are numeric but should be compared as strings,  the \fBle\fR
+operator or the \fBstring compare\fR command should be used instead.
+.\" COMMAND: >
 .TP
 \fB>\fR ?\fIarg\fR ...?
 .
@@ -211,8 +212,9 @@ after the first having to be strictly less than the one preceding it.
 Comparisons are performed preferentially on the numeric values, and are
 otherwise performed using UNICODE string comparison. If fewer than two
 arguments are present, this operation always returns a true value. When the
-arguments are numeric but should be compared as strings, the \fBstring
-compare\fR command should be used instead.
+arguments are numeric but should be compared as strings, the \fBgt\fR
+operator or the \fBstring compare\fR command should be used instead.
+.\" COMMAND: >=
 .TP
 \fB>=\fR ?\fIarg\fR ...?
 .
@@ -221,44 +223,86 @@ after the first having to be equal to or less than the one preceding it.
 Comparisons are performed preferentially on the numeric values, and are
 otherwise performed using UNICODE string comparison. If fewer than two
 arguments are present, this operation always returns a true value. When the
-arguments are numeric but should be compared as strings, the \fBstring
-compare\fR command should be used instead.
+arguments are numeric but should be compared as strings, the \fBge\fR
+operator or the \fBstring compare\fR command should be used instead.
+.\" COMMAND: lt
+.TP
+\fBlt\fR ?\fIarg\fR ...?
+.VS TIP461
+Returns whether the arbitrarily-many arguments are ordered, with each argument
+after the first having to be strictly more than the one preceding it.
+Comparisons are performed using UNICODE string comparison. If fewer than two
+arguments are present, this operation always returns a true value.
+.VE TIP461
+.\" COMMAND: le
+.TP
+\fBle\fR ?\fIarg\fR ...?
+.VS TIP461
+Returns whether the arbitrarily-many arguments are ordered, with each argument
+after the first having to be equal to or strictly more than the one preceding it.
+Comparisons are performed using UNICODE string comparison. If fewer than two
+arguments are present, this operation always returns a true value.
+.VE TIP461
+.\" COMMAND: gt
+.TP
+\fBgt\fR ?\fIarg\fR ...?
+.VS TIP461
+Returns whether the arbitrarily-many arguments are ordered, with each argument
+after the first having to be strictly less than the one preceding it.
+Comparisons are performed using UNICODE string comparison. If fewer than two
+arguments are present, this operation always returns a true value.
+.VE TIP461
+.\" COMMAND: ge
+.TP
+\fBge\fR ?\fIarg\fR ...?
+.VS TIP461
+Returns whether the arbitrarily-many arguments are ordered, with each argument
+after the first having to be equal to or strictly less than the one preceding it.
+Comparisons are performed using UNICODE string comparison. If fewer than two
+arguments are present, this operation always returns a true value.
+.VE TIP461
 .SS "BIT-WISE OPERATORS"
 .PP
 The behaviors of the bit-wise operator commands (all of which only operate on
 integral arguments) are as follows:
+.\" COMMAND: ~
 .TP
-\fB~\fR \fInumber\fR
+\fB~\fI number\fR
 .
 Returns the bit-wise negation of \fInumber\fR. \fINumber\fR may be an integer
 of any size. Note that the result of this operation will always have the
 opposite sign to the input \fInumber\fR.
+.\" COMMAND: &
 .TP
 \fB&\fR ?\fInumber\fR ...?
 .
 Returns the bit-wise AND of each of the arbitrarily many arguments. Each
 \fInumber\fR must have an integral value. If no arguments are given, the
 result will be minus one.
+.\" COMMAND: |
 .TP
 \fB|\fR ?\fInumber\fR ...?
 .
 Returns the bit-wise OR of each of the arbitrarily many arguments. Each
 \fInumber\fR must have an integral value. If no arguments are given, the
 result will be zero.
+.\" COMMAND: ^
 .TP
 \fB^\fR ?\fInumber\fR ...?
 .
 Returns the bit-wise XOR of each of the arbitrarily many arguments. Each
 \fInumber\fR must have an integral value. If no arguments are given, the
 result will be zero.
+.\" COMMAND: <<
 .TP
-\fB<<\fR \fInumber number\fR
+\fB<<\fI number number\fR
 .
 Returns the result of bit-wise shifting the first argument left by the
 number of bits specified in the second argument. Each \fInumber\fR
 must have an integral value.
+.\" COMMAND: >>
 .TP
-\fB>>\fR \fInumber number\fR
+\fB>>\fI number number\fR
 .
 Returns the result of bit-wise shifting the first argument right by
 the number of bits specified in the second argument. Each \fInumber\fR
@@ -266,20 +310,24 @@ must have an integral value.
 .SS "LIST OPERATORS"
 .PP
 The behaviors of the list-oriented operator commands are as follows:
+.\" COMMAND: in
 .TP
-\fBin\fR \fIarg list\fR
+\fBin\fI arg list\fR
 .
 Returns whether the value \fIarg\fR is present in the list \fIlist\fR
 (according to exact string comparison of elements).
+.\" COMMAND: ni
 .TP
-\fBni\fR \fIarg list\fR
+\fBni\fI arg list\fR
 .
 Returns whether the value \fIarg\fR is not present in the list \fIlist\fR
 (according to exact string comparison of elements).
 .SH EXAMPLES
+.PP
 The simplest way to use the operators is often by using \fBnamespace path\fR
 to make the commands available. This has the advantage of not affecting the
 set of commands defined by the current namespace.
+.PP
 .CS
 namespace path {\fB::tcl::mathop\fR ::tcl::mathfunc}
 
@@ -296,10 +344,17 @@ set gotIt [\fBin\fR 3 $list]
 \fI# Test to see if a value is within some defined range\fR
 set inRange [\fB<=\fR 1 $x 5]
 
-\fI# Test to see if a list is sorted\fR
+\fI# Test to see if a list is numerically sorted\fR
 set sorted [\fB<=\fR {*}$list]
+
+\fI# Test to see if a list is lexically sorted\fR
+set alphaList {a b c d e f}
+set sorted [\fBle\fR {*}$alphaList]
 .CE
 .SH "SEE ALSO"
 expr(n), mathfunc(n), namespace(n)
 .SH KEYWORDS
 command, expression, operator
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/memory.n b/doc/memory.n
index 92e67c8..8fe6a9b 100644
--- a/doc/memory.n
+++ b/doc/memory.n
@@ -1,8 +1,8 @@
 '\"
-'\" Copyright (c) 1992-1999 by Karl Lehenbauer and Mark Diekhans
-'\" Copyright (c) 2000 by Scriptics Corporation.
+'\" Copyright (c) 1992-1999 Karl Lehenbauer & Mark Diekhans
+'\" Copyright (c) 2000 Scriptics Corporation.
 '\" All rights reserved.
-'\" 
+'\"
 .TH memory n 8.1 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -18,95 +18,108 @@ debugging capabilities.  The memory command has several suboptions, which are
 described below.  It is only available when Tcl has been compiled with
 memory debugging enabled (when \fBTCL_MEM_DEBUG\fR is defined at
 compile time), and after \fBTcl_InitMemory\fR has been called.
+.\" METHOD: active
 .TP
-\fBmemory active\fR \fIfile\fR
+\fBmemory active\fI file\fR
 .
 Write a list of all currently allocated memory to the specified \fIfile\fR.
+.\" METHOD: break_on_malloc
 .TP
-\fBmemory break_on_malloc\fR \fIcount\fR
+\fBmemory break_on_malloc\fI count\fR
 .
-After the \fIcount\fR allocations have been performed, \fBckalloc\fR
+After the \fIcount\fR allocations have been performed, \fBTcl_Alloc\fR
 outputs a message to this effect and that it is now attempting to enter
 the C debugger.  Tcl will then issue a \fISIGINT\fR signal against itself.
 If you are running Tcl under a C debugger, it should then enter the debugger
 command mode.
+.\" METHOD: info
 .TP
 \fBmemory info\fR
 .
-Returns a report containing the total allocations and frees since 
+Returns a report containing the total allocations and frees since
 Tcl began, the current packets allocated (the current
-number of calls to \fBckalloc\fR not met by a corresponding call 
-to \fBckfree\fR), the current bytes allocated, and the maximum number
+number of calls to \fBTcl_Alloc\fR not met by a corresponding call
+to \fBTcl_Free\fR), the current bytes allocated, and the maximum number
 of packets and bytes allocated.
+.\" METHOD: init
 .TP
 \fBmemory init \fR[\fBon\fR|\fBoff\fR]
 .
-Turn on or off the pre-initialization of all allocated memory
+Turn on or off the preinitialization of all allocated memory
 with bogus bytes.  Useful for detecting the use of uninitialized
 values.
+.\" METHOD: objs
 .TP
 \fBmemory objs \fIfile\fR
 .
 Causes a list of all allocated Tcl_Obj values to be written to the specified
 \fIfile\fR immediately, together with where they were allocated.  Useful for
 checking for leaks of values.
+.\" METHOD: onexit
 .TP
-\fBmemory onexit\fR \fIfile\fR
+\fBmemory onexit\fI file\fR
 .
 Causes a list of all allocated memory to be written to the specified \fIfile\fR
 during the finalization of Tcl's memory subsystem.  Useful for checking
 that memory is properly cleaned up during process exit.
+.\" METHOD: tag
 .TP
-\fBmemory tag\fR \fIstring\fR
+\fBmemory tag\fI string\fR
 .
-Each packet of memory allocated by \fBckalloc\fR can have associated
+Each packet of memory allocated by \fBTcl_Alloc\fR can have associated
 with it a string-valued tag.  In the lists of allocated memory generated
 by \fBmemory active\fR and \fBmemory onexit\fR, the tag for each packet
 is printed along with other information about the packet.  The
 \fBmemory tag\fR command sets the tag value for subsequent calls
-to \fBckalloc\fR to be \fIstring\fR.  
+to \fBTcl_Alloc\fR to be \fIstring\fR.
+.\" METHOD: trace
 .TP
 \fBmemory trace \fR[\fBon\fR|\fBoff\fR]
 .
 Turns memory tracing on or off.  When memory tracing is on, every call
-to \fBckalloc\fR causes a line of trace information to be written to
-\fIstderr\fR, consisting of the word \fIckalloc\fR, followed by the
+to \fBTcl_Alloc\fR causes a line of trace information to be written to
+\fIstderr\fR, consisting of the word \fITcl_Alloc\fR, followed by the
 address returned, the amount of memory allocated, and the C filename
 and line number of the code performing the allocation.  For example:
 .RS
 .PP
 .CS
-ckalloc 40e478 98 tclProc.c 1406
+Tcl_Alloc 40e478 98 tclProc.c 1406
 .CE
 .PP
-Calls to \fBckfree\fR are traced in the same manner.
+Calls to \fBTcl_Free\fR are traced in the same manner.
 .RE
+.\" METHOD: trace_on_at_malloc
 .TP
-\fBmemory trace_on_at_malloc\fR \fIcount\fR
+\fBmemory trace_on_at_malloc\fI count\fR
 .
-Enable memory tracing after \fIcount\fR \fBckalloc\fRs have been performed.
+Enable memory tracing after \fIcount\fR \fBTcl_Alloc\fRs have been performed.
 For example, if you enter \fBmemory trace_on_at_malloc 100\fR,
-after the 100th call to \fBckalloc\fR, memory trace information will begin
+after the 100th call to \fBTcl_Alloc\fR, memory trace information will begin
 being displayed for all allocations and frees.  Since there can be a lot
 of memory activity before a problem occurs, judicious use of this option
 can reduce the slowdown caused by tracing (and the amount of trace information
 produced), if you can identify a number of allocations that occur before
-the problem sets in.  The current number of memory allocations that have 
+the problem sets in.  The current number of memory allocations that have
 occurred since Tcl started is printed on a guard zone failure.
+.\" METHOD: validate
 .TP
 \fBmemory validate \fR[\fBon\fR|\fBoff\fR]
 .
 Turns memory validation on or off. When memory validation is enabled,
-on every call to \fBckalloc\fR or \fBckfree\fR, the guard zones are
+on every call to \fBTcl_Alloc\fR or \fBTcl_Free\fR, the guard zones are
 checked for every piece of memory currently in existence that was
-allocated by \fBckalloc\fR.  This has a large performance impact and
+allocated by \fBTcl_Alloc\fR.  This has a large performance impact and
 should only be used when overwrite problems are strongly suspected.
 The advantage of enabling memory validation is that a guard zone
-overwrite can be detected on the first call to \fBckalloc\fR or
-\fBckfree\fR after the overwrite occurred, rather than when the
+overwrite can be detected on the first call to \fBTcl_Alloc\fR or
+\fBTcl_Free\fR after the overwrite occurred, rather than when the
 specific memory with the overwritten guard zone(s) is freed, which may
 occur long after the overwrite occurred.
 .SH "SEE ALSO"
-ckalloc, ckfree, Tcl_ValidateAllMemory, Tcl_DumpActiveMemory, TCL_MEM_DEBUG
+Tcl_Alloc, Tcl_Free, Tcl_ValidateAllMemory, Tcl_DumpActiveMemory, TCL_MEM_DEBUG
 .SH KEYWORDS
 memory, debug
+'\"Local Variables:
+'\"mode: nroff
+'\"End:
diff --git a/doc/msgcat.n b/doc/msgcat.n
index b4f7140..94884f3 100644
--- a/doc/msgcat.n
+++ b/doc/msgcat.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH "msgcat" n 1.5 msgcat "Tcl Bundled Packages"
 .so man.macros
 .BS
@@ -11,31 +11,34 @@
 .SH NAME
 msgcat \- Tcl message catalog
 .SH SYNOPSIS
-\fBpackage require Tcl 8.5\fR
-.sp
-\fBpackage require msgcat 1.5\fR
-.sp
+.nf
+\fBpackage require tcl 9.0\fR
+\fBpackage require msgcat 1.7\fR
+
 \fB::msgcat::mc \fIsrc-string\fR ?\fIarg arg ...\fR?
-.sp
 \fB::msgcat::mcmax ?\fIsrc-string src-string ...\fR?
-.sp
+\fB::msgcat::mcexists\fR ?\fB\-exactnamespace\fR? ?\fB\-exactlocale\fR? \fIsrc-string\fR
+.VS TIP490
+\fB::msgcat::mcpackagenamespaceget\fR
+.VE TIP490
 \fB::msgcat::mclocale \fR?\fInewLocale\fR?
-.sp
-\fB::msgcat::mcpreferences\fR
-.sp
+.VS TIP499
+\fB::msgcat::mcpreferences\fR ?\fIlocale preference\fR? ...
+.VE TIP499
+\fB::msgcat::mcloadedlocales subcommand\fR
 \fB::msgcat::mcload \fIdirname\fR
-.sp
 \fB::msgcat::mcset \fIlocale src-string \fR?\fItranslate-string\fR?
-.sp
 \fB::msgcat::mcmset \fIlocale src-trans-list\fR
-.sp
-.VS "TIP 404"
 \fB::msgcat::mcflset \fIsrc-string \fR?\fItranslate-string\fR?
-.sp
 \fB::msgcat::mcflmset \fIsrc-trans-list\fR
-.VE "TIP 404"
-.sp
 \fB::msgcat::mcunknown \fIlocale src-string\fR ?\fIarg arg ...\fR?
+\fB::msgcat::mcpackagelocale subcommand\fR ?\fIlocale\fR?
+\fB::msgcat::mcpackageconfig subcommand\fI option\fR ?\fIvalue\fR?
+\fB::msgcat::mcforgetpackage\fR
+.VS TIP499
+\fB::msgcat::mcutil subcommand\fR ?\fIlocale\fR?
+.VS TIP499
+.fi
 .BE
 .SH DESCRIPTION
 .PP
@@ -46,18 +49,31 @@ Text strings are defined in a
 which is independent from the application, and
 which can be edited or localized without modifying
 the application source code.  New languages
-or locales are provided by adding a new file to
+or locales may be provided by adding a new file to
 the message catalog.
 .PP
-Use of the message catalog is optional by any application
-or package, but is encouraged if the application or package
-wishes to be enabled for multi-lingual applications.
+\fBmsgcat\fR distinguishes packages by its namespace. Each package has
+its own message catalog and configuration settings in \fBmsgcat\fR.
+.PP
+A \fIlocale\fR is a specification string describing a user language like
+\fBde_ch\fR for Swiss German. In \fBmsgcat\fR, there is a global locale
+initialized by the system locale of the current system. Each package may
+decide to use the global locale or to use a package specific locale.
+.PP
+The global locale may be changed on demand, for example by a user initiated
+language change or within a multi user application like a web server.
+.PP
+.VS TIP490
+Object oriented programming is supported by the use of a package namespace.
+.VE TIP490
+.PP
 .SH COMMANDS
+.\" COMMAND: mc
 .TP
 \fB::msgcat::mc \fIsrc-string\fR ?\fIarg arg ...\fR?
 .
 Returns a translation of \fIsrc-string\fR according to the
-user's current locale.  If additional arguments past \fIsrc-string\fR
+current locale.  If additional arguments past \fIsrc-string\fR
 are given, the \fBformat\fR command is used to substitute the
 additional arguments in the translation of \fIsrc-string\fR.
 .RS
@@ -76,6 +92,20 @@ use the result.  If an application is written for a single language in
 this fashion, then it is easy to add support for additional languages
 later simply by defining new message catalog entries.
 .RE
+.\" COMMAND: mcn
+.TP
+\fB::msgcat::mcn \fInamespace src-string\fR ?\fIarg arg ...\fR?
+.VS TIP490
+Like \fB::msgcat::mc\fR, but with the message namespace specified as first
+argument.
+.PP
+.RS
+\fBmcn\fR may be used for cases where the package namespace is not the
+namespace of the caller. An example is shown within the description of the
+command \fB::msgcat::mcpackagenamespaceget\fR below.
+.RE
+.VE
+.\" COMMAND: mcmax
 .TP
 \fB::msgcat::mcmax ?\fIsrc-string src-string ...\fR?
 .
@@ -83,32 +113,123 @@ Given several source strings, \fB::msgcat::mcmax\fR returns the length
 of the longest translated string.  This is useful when designing
 localized GUIs, which may require that all buttons, for example, be a
 fixed width (which will be the width of the widest button).
+.\" COMMAND: mcexists
+.TP
+\fB::msgcat::mcexists\fR ?\fB\-exactnamespace\fR? ?\fB\-exactlocale\fR? ?\fB\-namespace\fI namespace\fR? \fIsrc-string\fR
+Return true, if there is a translation for the given \fIsrc-string\fR.
+.PP
+.RS
+The search may be limited by the option \fB\-exactnamespace\fR to only check
+the current namespace and not any parent namespaces.
+.PP
+It may also be limited by the option \fB\-exactlocale\fR to only check the
+first prefered locale (e.g. first element returned by
+\fB::msgcat::mcpreferences\fR if global locale is used).
+.PP
+.VS TIP490
+An explicit package namespace may be specified by the option \fB\-namespace\fR.
+The namespace of the caller is used if not explicitly specified.
+.RE
+.PP
+.VE TIP490
+.\" COMMAND: mcpackagenamespaceget
+.TP
+\fB::msgcat::mcpackagenamespaceget\fR
+.VS TIP490
+Return the package namespace of the caller. This command handles all cases
+described in section \fBOBJECT ORIENTED PROGRAMMING\fR.
+.PP
+.RS
+Example usage is a tooltip package, which saves the caller package namespace
+to update the translation each time the tooltip is shown:
+.CS
+proc ::tooltip::tooltip {widget message} {
+    ...
+    set messagenamespace [uplevel 1 {::msgcat::mcpackagenamespaceget}]
+    ...
+    bind $widget  [list ::tooltip::show $widget $messagenamespace $message]
+}
+
+proc ::tooltip::show {widget messagenamespace message} {
+    ...
+    set message [::msgcat::mcn $messagenamespace $message]
+    ...
+}
+.CE
+.RE
+.PP
+.VE TIP490
+.\" COMMAND: mclocale
 .TP
 \fB::msgcat::mclocale \fR?\fInewLocale\fR?
 .
-This function sets the locale to \fInewLocale\fR.  If \fInewLocale\fR
-is omitted, the current locale is returned, otherwise the current locale
-is set to \fInewLocale\fR.  msgcat stores and compares the locale in a
+If \fInewLocale\fR is omitted, the current locale is returned, otherwise the
+current locale is set to \fInewLocale\fR.
+.PP
+.RS
+If the new locale is set to \fInewLocale\fR, the corresponding preferences
+are calculated and set.
+For example, if the current locale is en_US_funky, then
+\fB::msgcat::mcpreferences\fR returns \fB{en_us_funky en_us en {}}\fR.
+.PP
+The same result may be achieved by \fB::msgcat::mcpreferences\fR
+{*}[\fB::msgcat::mcutil getpreferences\fI newLocale\fR].
+.PP
+The current locale is always the first element of the list returned by
+\fBmcpreferences\fR.
+.PP
+msgcat stores and compares the locale in a
 case-insensitive manner, and returns locales in lowercase.
 The initial locale is determined by the locale specified in
 the user's environment.  See \fBLOCALE SPECIFICATION\fR
 below for a description of the locale string format.
+.PP
+If the locale is set, the preference list of locales is evaluated.
+Locales in this list are loaded now, if not jet loaded.
+.RE
+.\" COMMAND: mcpreferences
 .TP
-\fB::msgcat::mcpreferences\fR
+\fB::msgcat::mcpreferences\fR ?\fIlocale preference\fR? ...
 .
-Returns an ordered list of the locales preferred by
-the user, based on the user's language specification.
-The list is ordered from most specific to least
-preference.  The list is derived from the current
-locale set in msgcat by \fB::msgcat::mclocale\fR, and
-cannot be set independently.  For example, if the
-current locale is en_US_funky, then \fB::msgcat::mcpreferences\fR
-returns \fB{en_US_funky en_US en {}}\fR.
+Without arguments, returns an ordered list of the locales preferred by
+the user.
+The list is ordered from most specific to least preference.
+.PP
+.VS TIP499
+.RS
+A set of locale preferences may be given to set the list of locale preferences.
+The current locale is also set, which is the first element of the locale
+preferences list.
+.PP
+Locale preferences are loaded now, if not jet loaded.
+.PP
+As an example, the user may prefer French or English text. This may be
+configured by:
+.CS
+::msgcat::mcpreferences fr en {}
+.CE
+.RE
+.PP
+.\" COMMAND: mcloadedlocales
+.TP
+\fB::msgcat::mcloadedlocales subcommand\fR
+.VS TIP499
+This group of commands manage the list of loaded locales for packages not
+setting a package locale.
+.PP
+.RS
+The subcommand \fBloaded\fR returns the list of currently loaded locales.
+.PP
+The subcommand \fBclear\fR removes all locales and their data, which are not in
+the current preference list.
+.RE
+.VE
+.\" COMMAND: mcload
 .TP
 \fB::msgcat::mcload \fIdirname\fR
-.
 Searches the specified directory for files that match
-the language specifications returned by \fB::msgcat::mcpreferences\fR
+the language specifications returned by \fB::msgcat::mcloadedlocales loaded\fR
+(or \fBmsgcat::mcpackagelocale preferences\fR if a package locale is set)
 (note that these are all lowercase), extended by the file extension
 .QW .msg .
 Each matching file is
@@ -118,6 +239,13 @@ may be present in the message file either directly in their UTF-8
 encoded form, or by use of the backslash-u quoting recognized by Tcl
 evaluation.  The number of message files which matched the specification
 and were loaded is returned.
+.RS
+.PP
+In addition, the given folder is stored in the \fBmsgcat\fR package
+configuration option \fImcfolder\fR to eventually load message catalog
+files required by a locale change.
+.RE
+.\" COMMAND: mcset
 .TP
 \fB::msgcat::mcset \fIlocale src-string \fR?\fItranslate-string\fR?
 .
@@ -125,6 +253,7 @@ Sets the translation for \fIsrc-string\fR to \fItranslate-string\fR
 in the specified \fIlocale\fR and the current namespace.  If
 \fItranslate-string\fR is not specified, \fIsrc-string\fR is used
 for both.  The function returns \fItranslate-string\fR.
+.\" COMMAND: mcmset
 .TP
 \fB::msgcat::mcmset \fIlocale src-trans-list\fR
 .
@@ -136,18 +265,19 @@ the form {\fIsrc-string translate-string\fR ?\fIsrc-string
 translate-string ...\fR?} \fB::msgcat::mcmset\fR can be significantly
 faster than multiple invocations of \fB::msgcat::mcset\fR. The function
 returns the number of translations set.
+.\" COMMAND: mcflset
 .TP
 \fB::msgcat::mcflset \fIsrc-string \fR?\fItranslate-string\fR?
-.VS "TIP 404"
+.
 Sets the translation for \fIsrc-string\fR to \fItranslate-string\fR in the
 current namespace for the locale implied by the name of the message catalog
 being loaded via \fB::msgcat::mcload\fR.  If \fItranslate-string\fR is not
 specified, \fIsrc-string\fR is used for both.  The function returns
 \fItranslate-string\fR.
-.VE "TIP 404"
+.\" COMMAND: mcflmset
 .TP
 \fB::msgcat::mcflmset \fIsrc-trans-list\fR
-.VS "TIP 404"
+.
 Sets the translation for multiple source strings in \fIsrc-trans-list\fR in
 the current namespace for the locale implied by the name of the message
 catalog being loaded via \fB::msgcat::mcload\fR. \fIsrc-trans-list\fR must
@@ -155,7 +285,7 @@ have an even number of elements and is in the form {\fIsrc-string
 translate-string\fR ?\fIsrc-string translate-string ...\fR?}
 \fB::msgcat::mcflmset\fR can be significantly faster than multiple invocations
 of \fB::msgcat::mcflset\fR. The function returns the number of translations set.
-.VE "TIP 404"
+.\" COMMAND: mcunknown
 .TP
 \fB::msgcat::mcunknown \fIlocale src-string\fR ?\fIarg arg ...\fR?
 .
@@ -168,7 +298,41 @@ application, for example to log error messages for each unknown
 string.  The \fB::msgcat::mcunknown\fR procedure is invoked at the
 same stack context as the call to \fB::msgcat::mc\fR.  The return value
 of \fB::msgcat::mcunknown\fR is used as the return value for the call
-to \fB::msgcat::mc\fR.  
+to \fB::msgcat::mc\fR.
+.RS
+.PP
+Note that this routine is only called if the concerned package did not set a
+package locale unknown command name.
+.RE
+.\" COMMAND: mcforgetpackage
+.TP
+\fB::msgcat::mcforgetpackage\fR
+.
+The calling package clears all its state within the \fBmsgcat\fR package
+including all settings and translations.
+.PP
+.\" COMMAND: mcutil
+.\" METHOD: getpreferences
+.VS TIP499
+.TP
+\fB::msgcat::mcutil getpreferences\fI locale\fR
+.
+Return the preferences list of the given locale as described in the section
+\fBLOCALE SPECIFICATION\fR.
+An example is the composition of a preference list for the bilingual region
+"Biel/Bienne" as a concatenation of swiss german and swiss french:
+.CS
+% concat [lrange [msgcat::mcutil getpreferences fr_CH] 0 end-1] [msgcat::mcutil getpreferences de_CH]
+fr_ch fr de_ch de {}
+.CE
+.\" METHOD: getsystemlocale
+.TP
+\fB::msgcat::mcutil getsystemlocale\fR
+.
+The system locale is returned as described by the section
+\fBLOCALE SPECIFICATION\fR.
+.VE TIP499
+.PP
 .SH "LOCALE SPECIFICATION"
 .PP
 The locale is specified to \fBmsgcat\fR by a locale string
@@ -196,7 +360,7 @@ language[_country][.codeset][@modifier]
 .CE
 .PP
 to extract its parts.  The initial locale is then set by calling
-\fB::msgcat::mclocale\fR with the argument 
+\fB::msgcat::mclocale\fR with the argument
 .PP
 .CS
 language[_country][_modifier]
@@ -204,10 +368,9 @@ language[_country][_modifier]
 .PP
 On Windows and Cygwin, if none of those environment variables is set,
 msgcat will attempt to extract locale information from the registry.
-From Windows Vista on, the RFC4747 locale name "lang-script-country-options"
+The RFC4747 locale name "lang-script-country-options"
 is transformed to the locale as "lang_country_script" (Example:
-sr-Latn-CS -> sr_cs_latin). For Windows XP, the language id is
-transformed analoguously (Example: 0c1a -> sr_yu_cyrillic).
+sr-Latn-CS -> sr_cs_latin).
 If all these attempts to discover an initial locale from the user's
 environment fail, msgcat defaults to an initial locale of
 .QW C .
@@ -217,15 +380,15 @@ When a locale is specified by the user, a
 search is performed during string translation.  For example, if a user
 specifies
 en_GB_Funky, the locales
-.QW en_GB_Funky ,
-.QW en_GB ,
+.QW en_gb_funky ,
+.QW en_gb ,
 .QW en
 and
 .MT
 (the empty string)
 are searched in order until a matching translation
 string is found.  If no translation string is available, then
-\fB::msgcat::mcunknown\fR is called.
+the unknown handler is called.
 .SH "NAMESPACES AND MESSAGE CATALOGS"
 .PP
 Strings stored in the message catalog are stored relative
@@ -373,13 +536,321 @@ formatting substitution is done directly.
 # ... where that key is mapped to one of the
 # human-oriented versions by \fBmsgcat::mcset\fR
 .CE
+.SH "PACKAGE PRIVATE LOCALE"
+.PP
+A package using \fBmsgcat\fR may choose to use its own package private
+locale and its own set of loaded locales, independent to the global
+locale set by \fB::msgcat::mclocale\fR.
+.PP
+This allows a package to change its locale without causing any locales load or
+removal in other packages and not to invoke the global locale change callback
+(see below).
+.PP
+This action is controled by the following ensemble:
+.\" COMMAND: mcpackagelocale
+.\" METHOD: set
+.TP
+\fB::msgcat::mcpackagelocale set\fR ?\fIlocale\fR?
+.
+Set or change a package private locale.
+The package private locale is set to the given \fIlocale\fR if the \fIlocale\fR
+is given. If the option \fIlocale\fR is not given, the package is set to package
+private locale mode, but no locale is changed (e.g. if the global locale was
+valid for the package before, it is copied to the package private locale).
+.PP
+.RS
+This command may cause the load of locales.
+.RE
+.\" METHOD: get
+.TP
+\fB::msgcat::mcpackagelocale get\fR
+.
+Return the package private locale or the global locale, if no package private
+locale is set.
+.\" METHOD: preferences
+.TP
+\fB::msgcat::mcpackagelocale preferences\fR ?\fIlocale preference\fR? ...
+.
+With no parameters, return the package private preferences or the global
+preferences, if no package private locale is set.
+The package locale state (set or not) is not changed (in contrast to the
+command \fB::msgcat::mcpackagelocale set\fR).
+.PP
+.RS
+.VS TIP499
+If a set of locale preferences is given, it is set as package locale preference
+list. The package locale is set to the first element of the preference list.
+A package locale is activated, if it was not set so far.
+.PP
+Locale preferences are loaded now for the package, if not yet loaded.
+.VE TIP499
+.RE
+.PP
+.\" METHOD: loaded
+.TP
+\fB::msgcat::mcpackagelocale loaded\fR
+.
+Return the list of locales loaded for this package.
+.\" METHOD: isset
+.TP
+\fB::msgcat::mcpackagelocale isset\fR
+.
+Returns true, if a package private locale is set.
+.\" METHOD: unset
+.TP
+\fB::msgcat::mcpackagelocale unset\fR
+.
+Unset the package private locale and use the global locale.
+Load and remove locales to adjust the list of loaded locales for the
+package to the global loaded locales list.
+.\" METHOD: present
+.TP
+\fB::msgcat::mcpackagelocale present\fI locale\fR
+.
+Returns true, if the given locale is loaded for the package.
+.\" METHOD: clear
+.TP
+\fB::msgcat::mcpackagelocale clear\fR
+.
+Clear any loaded locales of the package not present in the package preferences.
+.PP
+.SH "CHANGING PACKAGE OPTIONS"
+.PP
+Each package using msgcat has a set of options within \fBmsgcat\fR.
+The package options are described in the next sectionPackage options.
+Each package option may be set or unset individually using the following
+ensemble:
+.\" COMMAND: mcpackageconfig
+.\" METHOD: get
+.TP
+\fB::msgcat::mcpackageconfig get\fI option\fR
+.
+Return the current value of the given \fIoption\fR.
+This call returns an error if the option is not set for the package.
+.\" METHOD: isset
+.TP
+\fB::msgcat::mcpackageconfig isset\fI option\fR
+.
+Returns 1, if the given \fIoption\fR is set for the package, 0 otherwise.
+.\" METHOD: set
+.TP
+\fB::msgcat::mcpackageconfig set\fI option value\fR
+.
+Set the given \fIoption\fR to the given \fIvalue\fR.
+This may invoke additional actions in dependency of the \fIoption\fR.
+The return value is 0 or the number of loaded packages for the option
+\fBmcfolder\fR.
+.\" METHOD: unset
+.TP
+\fB::msgcat::mcpackageconfig unset\fI option\fR
+.
+Unsets the given \fIoption\fR for the package.
+No action is taken if the \fIoption\fR is not set for the package.
+The empty string is returned.
+.SS Package options
+.PP
+The following package options are available for each package:
+.TP
+\fBmcfolder\fR
+.
+This is the message folder of the package. This option is set by mcload and by
+the subcommand set. Both are identical and both return the number of loaded
+message catalog files.
+.RS
+.PP
+Setting or changing this value will load all locales contained in the
+preferences valid for the package. This implies also to invoke any set
+loadcmd (see below).
+.PP
+Unsetting this value will disable message file load for the package.
+.RE
+.TP
+\fBloadcmd\fR
+.
+This callback is invoked before a set of message catalog files are loaded for
+the package which has this property set.
+.PP
+.RS
+This callback may be used to do any preparation work for message file load or
+to get the message data from another source like a data base. In this case, no
+message files are used (mcfolder is unset).
+.PP
+See section \fBcallback invocation\fR below.
+The parameter list appended to this callback is the list of locales to load.
+.PP
+If this callback is changed, it is called with the preferences valid for the
+package.
+.RE
+.TP
+\fBchangecmd\fR
+.
+This callback is invoked when a default local change was performed. Its
+purpose is to allow a package to update any dependency on the default locale
+like showing the GUI in another language.
+.PP
+.RS
+See the callback invocation section below.
+The parameter list appended to this callback is \fBmcpreferences\fR.
+The registered callbacks are invoked in no particular order.
+.RE
+.TP
+\fBunknowncmd\fR
+.
+Use a package locale mcunknown procedure instead of the standard version
+supplied by the msgcat package (\fBmsgcat::mcunknown\fR).
+.PP
+.RS
+The called procedure must return the formatted message which will finally be
+returned by \fBmsgcat::mc\fR.
+.PP
+A generic unknown handler is used if set to the empty string. This consists of
+returning the key if no arguments are given. With given arguments, the
+\fBformat\fR command is used to process the arguments.
+.PP
+See section \fBcallback invocation\fR below.
+The appended arguments are identical to \fBmsgcat::mcunknown\fR.
+.RE
+.SH "Callback invocation"
+A package may decide to register one or multiple callbacks, as described above.
+.PP
+Callbacks are invoked, if:
+.PP
+1. the callback command is set,
+.PP
+2. the command is not the empty string,
+.PP
+3. the registering namespace exists.
+.PP
+If a called routine fails with an error, the \fBbgerror\fR routine for the
+interpreter is invoked after command completion.
+Only exception is the callback \fBunknowncmd\fR, where an error causes the
+invoking \fBmc\fR-command to fail with that error.
+.PP
+.VS TIP490
+.SH "OBJECT ORIENTED PROGRAMMING"
+\fBmsgcat\fR supports packages implemented by object oriented programming.
+Objects and classes should be defined within a package namespace.
+.PP
+There are 3 supported cases where package namespace sensitive commands of msgcat
+(\fBmc\fR, \fBmcexists\fR, \fBmcpackagelocale\fR, \fBmcforgetpackage\fR,
+\fBmcpackagenamespaceget\fR, \fBmcpackageconfig\fR, \fBmcset\fR and \fBmcmset\fR)
+may be called:
+.PP
+.TP
+\fB1) In class definition script\fR
+.
+\fBmsgcat\fR command is called within a class definition script.
+.CS
+namespace eval ::N2 {
+    mcload $dir/msgs
+    oo::class create C1 {puts [mc Hi!]}
+}
+.CE
+.PP
+.TP
+\fB2) method defined in a class\fR
+.
+\fBmsgcat\fR command is called from a method in an object and the method is
+defined in a class.
+.CS
+namespace eval ::N3Class {
+    mcload $dir/msgs
+    oo::class create C1
+    oo::define C1 method m1 {
+        puts [mc Hi!]
+    }
+}
+.CE
+.PP
+.TP
+\fB3) method defined in a classless object\fR
+.
+\fBmsgcat\fR command is called from a method of a classless object.
+.CS
+namespace eval ::N4 {
+    mcload $dir/msgs
+    oo::object create O1
+    oo::objdefine O1 method m1 {} {
+        puts [mc Hi!]
+    }
+}
+.CE
+.PP
+.VE TIP490
+.SH EXAMPLES
+Packages which display a GUI may update their widgets when the global locale
+changes. To register to a callback, use:
+.CS
+namespace eval gui {
+    msgcat::mcpackageconfig changecmd updateGUI
+
+    proc updateGUI args {
+        puts "New locale is '[lindex $args 0]'."
+    }
+}
+% msgcat::mclocale fr
+fr
+% New locale is 'fr'.
+.CE
+.PP
+If locales (or additional locales) are contained in another source like a
+database, a package may use the load callback and not \fBmcload\fR:
+.CS
+namespace eval db {
+    msgcat::mcpackageconfig loadcmd loadMessages
+
+    proc loadMessages args {
+        foreach locale $args {
+            if {[LocaleInDB $locale]} {
+                msgcat::mcmset $locale [GetLocaleList $locale]
+            }
+        }
+    }
+}
+.CE
+.PP
+The \fBclock\fR command implementation uses \fBmsgcat\fR with a package
+locale to implement the command line parameter \fB\-locale\fR.
+Here are some sketches of the implementation:
+.PP
+First, a package locale is initialized and the generic unknown function is
+deactivated:
+.CS
+msgcat::mcpackagelocale set
+msgcat::mcpackageconfig unknowncmd ""
+.CE
+As an example, the user requires the week day in a certain locale as follows:
+.CS
+clock format [clock seconds] -format %A -locale fr
+.CE
+\fBclock\fR sets the package locale to \fBfr\fR and looks for the day name as
+follows:
+.CS
+msgcat::mcpackagelocale set $locale
+return [lindex [msgcat::mc DAYS_OF_WEEK_FULL] $day]
+### Returns "mercredi"
+.CE
+Within \fBclock\fR, some message-catalog items are heavy in computation and
+thus are dynamically cached using:
+.CS
+proc ::tcl::clock::LocalizeFormat { locale format } {
+    set key FORMAT_$format
+    if { [::msgcat::mcexists -exactlocale -exactnamespace $key] } {
+        return [mc $key]
+    }
+    #...expensive computation of format clipped...
+    mcset $locale $key $format
+    return $format
+}
+.CE
 .SH CREDITS
 .PP
 The message catalog code was developed by Mark Harrison.
 .SH "SEE ALSO"
-format(n), scan(n), namespace(n), package(n)
+format(n), scan(n), namespace(n), package(n), oo::class(n), oo::object
 .SH KEYWORDS
-internationalization, i18n, localization, l10n, message, text, translation
+internationalization, i18n, localization, l10n, message, text, translation,
+class, object
 .\" Local Variables:
 .\" mode: nroff
 .\" End:
diff --git a/doc/my.n b/doc/my.n
new file mode 100644
index 0000000..425324e
--- /dev/null
+++ b/doc/my.n
@@ -0,0 +1,131 @@
+'\"
+'\" Copyright (c) 2007 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH my n 0.1 TclOO "TclOO Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+my, myclass \- invoke any method of current object or its class
+.SH SYNOPSIS
+.nf
+package require tcl::oo
+
+\fBmy\fI methodName\fR ?\fIarg ...\fR?
+\fBmyclass\fI methodName\fR ?\fIarg ...\fR?
+.fi
+.BE
+.SH DESCRIPTION
+.PP
+The \fBmy\fR command is used to allow methods of objects to invoke methods
+of the object (or its class),
+.VS TIP478
+and the \fBmyclass\fR command is used to allow methods of objects to invoke
+methods of the current class of the object \fIas an object\fR.
+.VE TIP478
+In particular, the set of valid values for
+\fImethodName\fR is the set of all methods supported by an object and its
+superclasses, including those that are not exported
+.VS TIP500
+and private methods of the object or class when used within another method
+defined by that object or class.
+.VE TIP500
+.PP
+The object upon which the method is invoked via \fBmy\fR is the one that owns
+the namespace that the \fBmy\fR command is contained in initially (\fBNB:\fR the
+link remains if the command is renamed), which is the currently invoked object
+by default.
+.VS TIP478
+Similarly, the object on which the method is invoked via \fBmyclass\fR is the
+object that is the current class of the object that owns the namespace that
+the \fBmyclass\fR command is contained in initially. As with \fBmy\fR, the
+link remains even if the command is renamed into another namespace, and
+defaults to being the manufacturing class of the current object.
+.VE TIP478
+.PP
+Each object has its own \fBmy\fR and \fBmyclass\fR commands, contained in its
+instance namespace.
+.SH EXAMPLES
+.PP
+This example shows basic use of \fBmy\fR to use the \fBvariables\fR method of
+the \fBoo::object\fR class, which is not publicly visible by default:
+.PP
+.CS
+oo::class create c {
+    method count {} {
+        \fBmy\fR variable counter
+        puts [incr counter]
+    }
+}
+
+c create o
+o count              \fI\(-> prints "1"\fR
+o count              \fI\(-> prints "2"\fR
+o count              \fI\(-> prints "3"\fR
+.CE
+.PP
+This example shows how you can use \fBmy\fR to make callbacks to private
+methods from outside the object (from a \fBtrace\fR), using
+\fBnamespace code\fR to enter the correct context. (See the \fBcallback\fR
+command for the recommended way of doing this.)
+.PP
+.CS
+oo::class create HasCallback {
+    method makeCallback {} {
+        return [namespace code {
+            \fBmy\fR Callback
+        }]
+    }
+
+    method Callback {args} {
+        puts "callback: $args"
+    }
+}
+
+set o [HasCallback new]
+trace add variable xyz write [$o makeCallback]
+set xyz "called"     \fI\(-> prints "callback: xyz {} write"\fR
+.CE
+.PP
+.VS TIP478
+This example shows how to access a private method of a class from an instance
+of that class. (See the \fBclassmethod\fR declaration in \fBoo::define\fR for
+a higher level interface for doing this.)
+.PP
+.CS
+oo::class create CountedSteps {
+    self {
+        variable count
+        method Count {} {
+            return [incr count]
+        }
+    }
+    method advanceTwice {} {
+        puts "in [self] step A: [\fBmyclass\fR Count]"
+        puts "in [self] step B: [\fBmyclass\fR Count]"
+    }
+}
+
+CountedSteps create x
+CountedSteps create y
+x advanceTwice       \fI\(-> prints "in ::x step A: 1"\fR
+                     \fI\(-> prints "in ::x step B: 2"\fR
+y advanceTwice       \fI\(-> prints "in ::y step A: 3"\fR
+                     \fI\(-> prints "in ::y step B: 4"\fR
+x advanceTwice       \fI\(-> prints "in ::x step A: 5"\fR
+                     \fI\(-> prints "in ::x step B: 6"\fR
+y advanceTwice       \fI\(-> prints "in ::y step A: 7"\fR
+                     \fI\(-> prints "in ::y step B: 8"\fR
+.CE
+.VE TIP478
+.SH "SEE ALSO"
+next(n), oo::object(n), self(n)
+.SH KEYWORDS
+method, method visibility, object, private method, public method
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/namespace.n b/doc/namespace.n
index 866db1b..c19791c 100644
--- a/doc/namespace.n
+++ b/doc/namespace.n
@@ -14,7 +14,7 @@
 .SH NAME
 namespace \- create and manipulate contexts for commands and variables
 .SH SYNOPSIS
-\fBnamespace \fR?\fIsubcommand\fR? ?\fIarg ...\fR?
+\fBnamespace \fR\fIsubcommand\fR ?\fIarg ...\fR?
 .BE
 .SH DESCRIPTION
 .PP
@@ -24,8 +24,10 @@ See the section \fBWHAT IS A NAMESPACE?\fR below
 for a brief overview of namespaces.
 The legal values of \fIsubcommand\fR are listed below.
 Note that you can abbreviate the \fIsubcommand\fRs.
+.\" METHOD: children
 .TP
 \fBnamespace children \fR?\fInamespace\fR? ?\fIpattern\fR?
+.
 Returns a list of all child namespaces that belong to the
 namespace \fInamespace\fR.
 If \fInamespace\fR is not specified,
@@ -39,8 +41,10 @@ a pattern that starts with double colon (\fB::\fR) is used directly,
 otherwise the namespace \fInamespace\fR
 (or the fully-qualified name of the current namespace)
 is prepended onto the pattern.
+.\" METHOD: code
 .TP
 \fBnamespace code \fIscript\fR
+.
 Captures the current namespace context for later execution
 of the script \fIscript\fR.
 It returns a new script in which \fIscript\fR has been wrapped
@@ -66,16 +70,20 @@ A scoped command captures a command together with its namespace context
 in a way that allows it to be executed properly later.
 See the section \fBSCOPED SCRIPTS\fR for some examples
 of how this is used to create callback scripts.
+.\" METHOD: current
 .TP
 \fBnamespace current\fR
+.
 Returns the fully-qualified name for the current namespace.
 The actual name of the global namespace is
 .MT
 (i.e., an empty string),
 but this command returns \fB::\fR for the global namespace
 as a convenience to programmers.
+.\" METHOD: delete
 .TP
 \fBnamespace delete \fR?\fInamespace namespace ...\fR?
+.
 Each namespace \fInamespace\fR is deleted
 and all variables, procedures, and child namespaces
 contained in the namespace are deleted.
@@ -85,15 +93,17 @@ however, the namespace is marked to prevent other code from
 looking it up by name.
 If a namespace does not exist, this command returns an error.
 If no namespace names are given, this command does nothing.
+.\" METHOD: ensemble
 .TP
-\fBnamespace ensemble\fR \fIsubcommand\fR ?\fIarg ...\fR?
-.VS 8.5
+\fBnamespace ensemble \fIsubcommand\fR ?\fIarg ...\fR?
+.
 Creates and manipulates a command that is formed out of an ensemble of
 subcommands.  See the section \fBENSEMBLES\fR below for further
 details.
-.VE 8.5
+.\" METHOD: eval
 .TP
-\fBnamespace eval\fR \fInamespace arg\fR ?\fIarg ...\fR?
+\fBnamespace eval \fInamespace arg\fR ?\fIarg ...\fR?
+.
 Activates a namespace called \fInamespace\fR and evaluates some code
 in that context.
 If the namespace does not already exist, it is created.
@@ -107,12 +117,16 @@ If \fInamespace\fR has leading namespace qualifiers
 and any leading namespaces do not exist,
 they are automatically created.
 .RE
+.\" METHOD: exists
 .TP
-\fBnamespace exists\fR \fInamespace\fR
+\fBnamespace exists \fInamespace\fR
+.
 Returns \fB1\fR if \fInamespace\fR is a valid namespace in the current
 context, returns \fB0\fR otherwise.
+.\" METHOD: export
 .TP
-\fBnamespace export \fR?\-\fBclear\fR? ?\fIpattern pattern ...\fR?
+\fBnamespace export \fR?\fB\-clear\fR? ?\fIpattern pattern ...\fR?
+.
 Specifies which commands are exported from a namespace.
 The exported commands are those that can be later imported
 into another namespace using a \fBnamespace import\fR command.
@@ -131,8 +145,10 @@ the namespace's export pattern list is reset to empty before any
 \fIpattern\fR arguments are appended.
 If no \fIpattern\fRs are given and the \fB\-clear\fR flag is not given,
 this command returns the namespace's current export list.
+.\" METHOD: forget
 .TP
 \fBnamespace forget \fR?\fIpattern pattern ...\fR?
+.
 Removes previously imported commands from a namespace.
 Each \fIpattern\fR is a simple or qualified name such as
 \fBx\fR, \fBfoo::x\fR or \fBa::b::p*\fR.
@@ -154,10 +170,11 @@ this command first finds the matching exported commands.
 It then checks whether any of those commands
 were previously imported by the current namespace.
 If so, this command deletes the corresponding imported commands.
-In effect, this un-does the action of a \fBnamespace import\fR command.
+In effect, this undoes the action of a \fBnamespace import\fR command.
+.\" METHOD: import
 .TP
-\fBnamespace import \fR?\fB\-force\fR? ?\fIpattern\fR \fIpattern ...\fR?
-.VS 8.5
+\fBnamespace import \fR?\fB\-force\fR? ?\fIpattern pattern ...\fR?
+.
 Imports commands into a namespace, or queries the set of imported
 commands in a namespace.  When no arguments are present,
 \fBnamespace import\fR returns the list of commands in
@@ -166,7 +183,8 @@ namespaces.  The commands in the returned list are in
 the format of simple names, with no namespace qualifiers at all.
 This format is suitable for composition with \fBnamespace forget\fR
 (see \fBEXAMPLES\fR below).
-.VE 8.5
+.RS
+.PP
 When \fIpattern\fR arguments are present,
 each \fIpattern\fR is a qualified name like
 \fBfoo::x\fR or \fBa::p*\fR.
@@ -174,6 +192,11 @@ That is, it includes the name of an exporting namespace
 and may have glob-style special characters in the command name
 at the end of the qualified name.
 Glob characters may not appear in a namespace name.
+When the namespace name is not fully qualified (i.e., does not start
+with a namespace separator) it is resolved as a namespace name in the
+way described in the \fBNAME RESOLUTION\fR section; it is an error if
+no namespace with that name can be found.
+.PP
 All the commands that match a \fIpattern\fR string
 and which are currently exported from their namespace
 are added to the current namespace.
@@ -182,7 +205,7 @@ that points to the exported command in its original namespace;
 when the new imported command is called, it invokes the exported command.
 This command normally returns an error
 if an imported command conflicts with an existing command.
-However, if the \-\fBforce\fR option is given,
+However, if the \fB\-force\fR option is given,
 imported commands will silently replace existing commands.
 The \fBnamespace import\fR command has snapshot semantics:
 that is, only requested commands that are currently defined
@@ -191,8 +214,11 @@ In other words, you can import only the commands that are in a namespace
 at the time when the \fBnamespace import\fR command is executed.
 If another command is defined and exported in this namespace later on,
 it will not be imported.
+.RE
+.\" METHOD: inscope
 .TP
-\fBnamespace inscope\fR \fInamespace\fR \fIscript\fR ?\fIarg ...\fR?
+\fBnamespace inscope \fInamespace script\fR ?\fIarg ...\fR?
+.
 Executes a script in the context of the specified \fInamespace\fR.
 This command is not expected to be used directly by programmers;
 calls to it are generated implicitly when applications
@@ -207,15 +233,20 @@ as proper list elements.
 .CS
 \fBnamespace inscope ::foo $script $x $y $z\fR
 .CE
+.PP
 is equivalent to
+.PP
 .CS
 \fBnamespace eval ::foo [concat $script [list $x $y $z]]\fR
 .CE
+.PP
 thus additional arguments will not undergo a second round of substitution,
 as is the case with \fBnamespace eval\fR.
 .RE
+.\" METHOD: origin
 .TP
 \fBnamespace origin \fIcommand\fR
+.
 Returns the fully-qualified name of the original command
 to which the imported command \fIcommand\fR refers.
 When a command is imported into a namespace,
@@ -228,36 +259,40 @@ this command returns the fully-qualified name of the original command
 in the first namespace, \fIa\fR.
 If \fIcommand\fR does not refer to an imported command,
 the command's own fully-qualified name is returned.
+.\" METHOD: parent
 .TP
 \fBnamespace parent\fR ?\fInamespace\fR?
+.
 Returns the fully-qualified name of the parent namespace
 for namespace \fInamespace\fR.
 If \fInamespace\fR is not specified,
 the fully-qualified name of the current namespace's parent is returned.
+.\" METHOD: path
 .TP
 \fBnamespace path\fR ?\fInamespaceList\fR?
-.\" Should really have the .TP inside the .VS, but that triggers a groff bug
-.VS 8.5
+.
 Returns the command resolution path of the current namespace. If
 \fInamespaceList\fR is specified as a list of named namespaces, the
 current namespace's command resolution path is set to those namespaces
 and returns the empty list. The default command resolution path is
 always empty. See the section \fBNAME RESOLUTION\fR below for an
 explanation of the rules regarding name resolution.
-.VE 8.5
+.\" METHOD: qualifiers
 .TP
-\fBnamespace qualifiers\fR \fIstring\fR
+\fBnamespace qualifiers\fI string\fR
+.
 Returns any leading namespace qualifiers for \fIstring\fR.
 Qualifiers are namespace names separated by double colons (\fB::\fR).
 For the \fIstring\fR \fB::foo::bar::x\fR,
 this command returns \fB::foo::bar\fR,
 and for \fB::\fR it returns an empty string.
 This command is the complement of the \fBnamespace tail\fR command.
-Note that it does not check whether the
-namespace names are, in fact,
+It does not check whether the namespace names are, in fact,
 the names of currently defined namespaces.
+.\" METHOD: tail
 .TP
-\fBnamespace tail\fR \fIstring\fR
+\fBnamespace tail\fI string\fR
+.
 Returns the simple name at the end of a qualified string.
 Qualifiers are namespace names separated by double colons (\fB::\fR).
 For the \fIstring\fR \fB::foo::bar::x\fR,
@@ -266,9 +301,11 @@ and for \fB::\fR it returns an empty string.
 This command is the complement of the \fBnamespace qualifiers\fR command.
 It does not check whether the namespace names are, in fact,
 the names of currently defined namespaces.
+.\" METHOD: upvar
 .TP
-\fBnamespace upvar\fR \fInamespace\fR \fIotherVar myVar \fR?\fIotherVar myVar \fR...
-This command arranges for one or more local variables in the current
+\fBnamespace upvar\fI namespace\fR ?\fIotherVar myVar \fR...?
+.
+This command arranges for zero or more local variables in the current
 procedure to refer to variables in \fInamespace\fR. The namespace name is
 resolved as described in section \fBNAME RESOLUTION\fR.
 The command
@@ -276,19 +313,24 @@ The command
 \fBupvar 0 ${ns}::a b\fR, with the sole exception of the resolution rules
 used for qualified namespace or variable names.
 \fBnamespace upvar\fR returns an empty string.
+.\" METHOD: unknown
 .TP
 \fBnamespace unknown\fR ?\fIscript\fR?
+.
 Sets or returns the unknown command handler for the current namespace.
 The handler is invoked when a command called from within the namespace
-cannot be found (in either the current namespace or the global namespace).
+cannot be found in the current namespace, the namespace's path nor in
+the global namespace.
 The \fIscript\fR argument, if given, should be a well
 formed list representing a command name and optional arguments. When
 the handler is invoked, the full invocation line will be appended to the
 script and the result evaluated in the context of the namespace. The
 default handler for all namespaces is \fB::unknown\fR. If no argument
 is given, it returns the handler for the current namespace.
+.\" METHOD: which
 .TP
-\fBnamespace which\fR ?\-\fBcommand\fR? ?\-\fBvariable\fR? \fIname\fR
+\fBnamespace which\fR ?\fB\-command\fR? ?\fB\-variable\fR? \fIname\fR
+.
 Looks up \fIname\fR as either a command or variable
 and returns its fully-qualified name.
 For example, if \fIname\fR does not exist in the current namespace
@@ -312,17 +354,19 @@ which we refer to as the \fIglobal namespace\fR.
 The global namespace holds all global variables and commands.
 The \fBnamespace eval\fR command lets you create new namespaces.
 For example,
+.PP
 .CS
 \fBnamespace eval\fR Counter {
-   \fBnamespace export\fR bump
-   variable num 0
+    \fBnamespace export\fR bump
+    variable num 0
 
-   proc bump {} {
-      variable num
-      incr num
-   }
+    proc bump {} {
+        variable num
+        incr num
+    }
 }
 .CE
+.PP
 creates a new namespace containing the variable \fBnum\fR and
 the procedure \fBbump\fR.
 The commands and variables in this namespace are separate from
@@ -342,23 +386,25 @@ so you can build up the contents of a
 namespace over time using a series of \fBnamespace eval\fR commands.
 For example, the following series of commands has the same effect
 as the namespace definition shown above:
+.PP
 .CS
 \fBnamespace eval\fR Counter {
-   variable num 0
-   proc bump {} {
-      variable num
-      return [incr num]
-   }
+    variable num 0
+    proc bump {} {
+        variable num
+        return [incr num]
+    }
 }
 \fBnamespace eval\fR Counter {
-   proc test {args} {
-      return $args
-   }
+    proc test {args} {
+        return $args
+    }
 }
 \fBnamespace eval\fR Counter {
-    rename test ""
+     rename test ""
 }
 .CE
+.PP
 Note that the \fBtest\fR procedure is added to the \fBCounter\fR namespace,
 and later removed via the \fBrename\fR command.
 .PP
@@ -390,19 +436,24 @@ you must use some extra syntax.
 Names must be qualified by the namespace that contains them.
 From the global namespace,
 we might access the \fBCounter\fR procedures like this:
+.PP
 .CS
 Counter::bump 5
 Counter::Reset
 .CE
+.PP
 We could access the current count like this:
+.PP
 .CS
 puts "count = $Counter::num"
 .CE
+.PP
 When one namespace contains another, you may need more than one
 qualifier to reach its elements.
 If we had a namespace \fBFoo\fR that contained the namespace \fBCounter\fR,
 you could invoke its \fBbump\fR procedure
 from the global namespace like this:
+.PP
 .CS
 Foo::Counter::bump 3
 .CE
@@ -410,10 +461,13 @@ Foo::Counter::bump 3
 You can also use qualified names when you create and rename commands.
 For example, you could add a procedure to the \fBFoo\fR
 namespace like this:
+.PP
 .CS
 proc Foo::Test {args} {return $args}
 .CE
+.PP
 And you could move the same procedure to another namespace like this:
+.PP
 .CS
 rename Foo::Test Bar::Test
 .CE
@@ -440,66 +494,72 @@ you mean.
 However, if the name does not start with a \fB::\fR
 (i.e., is \fIrelative\fR),
 Tcl follows basic rules for looking it up:
-Variable names are always resolved
-by looking first in the current namespace,
-and then in the global namespace.
-.VS 8.5
-Command names are also always resolved by looking in the current
-namespace first. If not found there, they are searched for in every
-namespace on the current namespace's command path (which is empty by
-default). If not found there, command names are looked up in the
-global namespace (or, failing that, are processed by the \fBunknown\fR
-command.)
-.VE 8.5
-Namespace names, on the other hand, are always resolved
-by looking in only the current namespace.
+.IP \(bu
+\fBVariable names\fR are always resolved starting in the current
+namespace. In the absence of special resolvers, foo::bar::baz refers to
+a variable named "baz" in a namespace named "bar" that is a child of a
+namespace named "foo" that is a child of the current namespace of the interpreter.
+.IP \(bu
+\fBCommand names\fR are always resolved by looking in the current namespace
+first. If not found there, they are searched for in every namespace on the
+current namespace's command path (which is empty by default). If not found
+there, command names are looked up in the global namespace (or, failing that,
+are processed by the appropriate \fBnamespace unknown\fR handler.)
+.IP \(bu
+\fBNamespace names\fR are always resolved by looking in only the current
+namespace.
 .PP
 In the following example,
+.PP
 .CS
 set traceLevel 0
 \fBnamespace eval\fR Debug {
-   printTrace $traceLevel
+    printTrace $traceLevel
 }
 .CE
-Tcl looks for \fBtraceLevel\fR in the namespace \fBDebug\fR
-and then in the global namespace.
+.PP
+Tcl looks for \fBtraceLevel\fR in the namespace \fBDebug\fR.
 It looks up the command \fBprintTrace\fR in the same way.
-If a variable or command name is not found in either context,
+If a variable or command name is not found,
 the name is undefined.
 To make this point absolutely clear, consider the following example:
+.PP
 .CS
 set traceLevel 0
 \fBnamespace eval\fR Foo {
-   variable traceLevel 3
+    variable traceLevel 3
 
-   \fBnamespace eval\fR Debug {
-      printTrace $traceLevel
-   }
+    \fBnamespace eval\fR Debug {
+        printTrace $traceLevel
+    }
 }
 .CE
-Here Tcl looks for \fBtraceLevel\fR first in the namespace \fBFoo::Debug\fR.
-Since it is not found there, Tcl then looks for it
-in the global namespace.
-The variable \fBFoo::traceLevel\fR is completely ignored
-during the name resolution process.
+.PP
+Here Tcl looks for \fBtraceLevel\fR in the namespace \fBFoo::Debug\fR.
+The variables \fBFoo::traceLevel\fR and \fBFoo::Debug::traceLevel\fR
+are completely ignored during the name resolution process.
 .PP
 You can use the \fBnamespace which\fR command to clear up any question
 about name resolution.
 For example, the command:
+.PP
 .CS
-\fBnamespace eval\fR Foo::Debug {\fBnamespace which\fR \-variable traceLevel}
+\fBnamespace eval\fR Foo::Debug {\fBnamespace which\fR -variable traceLevel}
 .CE
-returns \fB::traceLevel\fR.
-On the other hand, the command,
+.PP
+returns the empty string.
+The command,
+.PP
 .CS
-\fBnamespace eval\fR Foo {\fBnamespace which\fR \-variable traceLevel}
+\fBnamespace eval\fR Foo {\fBnamespace which\fR -variable traceLevel}
 .CE
-returns \fB::Foo::traceLevel\fR.
+.PP
+returns the empty string as well.
 .PP
 As mentioned above,
-namespace names are looked up differently
-than the names of variables and commands.
-Namespace names are always resolved in the current namespace.
+namespace names and variables are looked up differently
+than the names of commands.
+Namespace names and variables are always resolved in the current namespace.
 This means, for example,
 that a \fBnamespace eval\fR command that creates a new namespace
 always creates a child of the current namespace
@@ -531,23 +591,29 @@ that it is a nuisance to type their qualified names.
 For example, suppose that all of the commands in a package
 like BLT are contained in a namespace called \fBBlt\fR.
 Then you might access these commands like this:
+.PP
 .CS
-Blt::graph .g \-background red
+Blt::graph .g -background red
 Blt::table . .g 0,0
 .CE
+.PP
 If you use the \fBgraph\fR and \fBtable\fR commands frequently,
 you may want to access them without the \fBBlt::\fR prefix.
 You can do this by importing the commands into the current namespace,
 like this:
+.PP
 .CS
 \fBnamespace import\fR Blt::*
 .CE
+.PP
 This adds all exported commands from the \fBBlt\fR namespace
 into the current namespace context, so you can write code like this:
+.PP
 .CS
-graph .g \-background red
+graph .g -background red
 table . .g 0,0
 .CE
+.PP
 The \fBnamespace import\fR command only imports commands
 from a namespace that that namespace exported
 with a \fBnamespace export\fR command.
@@ -556,9 +622,11 @@ Importing \fIevery\fR command from a namespace is generally
 a bad idea since you do not know what you will get.
 It is better to import just the specific commands you need.
 For example, the command
+.PP
 .CS
 \fBnamespace import\fR Blt::graph Blt::table
 .CE
+.PP
 imports only the \fBgraph\fR and \fBtable\fR commands into the
 current context.
 .PP
@@ -569,57 +637,67 @@ you may want to get around this restriction.  You may want to
 reissue the \fBnamespace import\fR command to pick up new commands
 that have appeared in a namespace.  In that case, you can use the
 \fB\-force\fR option, and existing commands will be silently overwritten:
+.PP
 .CS
-\fBnamespace import\fR \-force Blt::graph Blt::table
+\fBnamespace import\fR -force Blt::graph Blt::table
 .CE
+.PP
 If for some reason, you want to stop using the imported commands,
 you can remove them with a \fBnamespace forget\fR command, like this:
+.PP
 .CS
 \fBnamespace forget\fR Blt::*
 .CE
+.PP
 This searches the current namespace for any commands imported from \fBBlt\fR.
 If it finds any, it removes them.  Otherwise, it does nothing.
 After this, the \fBBlt\fR commands must be accessed with the \fBBlt::\fR
 prefix.
 .PP
 When you delete a command from the exporting namespace like this:
+.PP
 .CS
 rename Blt::graph ""
 .CE
+.PP
 the command is automatically removed from all namespaces that import it.
 .SH "EXPORTING COMMANDS"
 You can export commands from a namespace like this:
+.PP
 .CS
 \fBnamespace eval\fR Counter {
-   \fBnamespace export\fR bump reset
-   variable Num 0
-   variable Max 100
+    \fBnamespace export\fR bump reset
+    variable Num 0
+    variable Max 100
 
-   proc bump {{by 1}} {
-      variable Num
-      incr Num $by
-      Check
-      return $Num
-   }
-   proc reset {} {
-      variable Num
-      set Num 0
-   }
-   proc Check {} {
-      variable Num
-      variable Max
-      if {$Num > $Max} {
-         error "too high!"
-      }
-   }
+    proc bump {{by 1}} {
+        variable Num
+        incr Num $by
+        Check
+        return $Num
+    }
+    proc reset {} {
+        variable Num
+        set Num 0
+    }
+    proc Check {} {
+        variable Num
+        variable Max
+        if {$Num > $Max} {
+            error "too high!"
+        }
+    }
 }
 .CE
+.PP
 The procedures \fBbump\fR and \fBreset\fR are exported,
 so they are included when you import from the \fBCounter\fR namespace,
 like this:
+.PP
 .CS
 \fBnamespace import\fR Counter::*
 .CE
+.PP
 However, the \fBCheck\fR procedure is not exported,
 so it is ignored by the import operation.
 .PP
@@ -640,13 +718,13 @@ namespace:
 .PP
 .CS
 \fBnamespace eval\fR a {
-   variable b
-   proc theTraceCallback { n1 n2 op } {
-      upvar 1 $n1 var
-      puts "the value of $n1 has changed to $var"
-      return
-   }
-   trace add variable b write [\fBnamespace code\fR theTraceCallback]
+    variable b
+    proc theTraceCallback { n1 n2 op } {
+        upvar 1 $n1 var
+        puts "the value of $n1 has changed to $var"
+        return
+    }
+    trace add variable b write [\fBnamespace code\fR theTraceCallback]
 }
 set a::b c
 .CE
@@ -658,7 +736,6 @@ the value of a::b has changed to c
 .CE
 .SH ENSEMBLES
 .PP
-.VS 8.5
 The \fBnamespace ensemble\fR is used to create and manipulate ensemble
 commands, which are commands formed by grouping subcommands together.
 The commands typically come from the current namespace when the
@@ -670,8 +747,10 @@ namespace is deleted.  The link between an ensemble command and its
 namespace is maintained however the ensemble is renamed.
 .PP
 Three subcommands of the \fBnamespace ensemble\fR command are defined:
+.\" METHOD: create
 .TP
 \fBnamespace ensemble create\fR ?\fIoption value ...\fR?
+.
 Creates a new ensemble command linked to the current namespace,
 returning the fully qualified name of the command created.  The
 arguments to \fBnamespace ensemble create\fR allow the configuration
@@ -680,14 +759,18 @@ command.  If not overridden with the \fB\-command\fR option, this
 command creates an ensemble with exactly the same name as the linked
 namespace.  See the section \fBENSEMBLE OPTIONS\fR below for a full
 list of options supported and their effects.
+.\" METHOD: configure
 .TP
 \fBnamespace ensemble configure \fIcommand\fR ?\fIoption\fR? ?\fIvalue ...\fR?
+.
 Retrieves the value of an option associated with the ensemble command
 named \fIcommand\fR, or updates some options associated with that
 ensemble command.  See the section \fBENSEMBLE OPTIONS\fR below for a
 full list of options supported and their effects.
+.\" METHOD: exists
 .TP
-\fBnamespace ensemble exists\fR \fIcommand\fR
+\fBnamespace ensemble exists\fI command\fR
+.
 Returns a boolean value that describes whether the command
 \fIcommand\fR exists and is an ensemble command.  This command only
 ever returns an error if the number of arguments to the command is
@@ -708,8 +791,10 @@ the \fBuplevel\fR or \fBinfo level\fR commands.
 The following options, supported by the \fBnamespace ensemble
 create\fR and \fBnamespace ensemble configure\fR commands, control how
 an ensemble command behaves:
+.\" OPTION: -map
 .TP
 \fB\-map\fR
+.
 When non-empty, this option supplies a dictionary that provides a
 mapping from subcommand names to a list of prefix words to substitute
 in place of the ensemble command and subcommand words (in a manner
@@ -722,14 +807,26 @@ will be from the local name of the subcommand to its fully-qualified
 name.  Note that when this option is non-empty and the
 \fB\-subcommands\fR option is empty, the ensemble subcommand names
 will be exactly those words that have mappings in the dictionary.
+.\" OPTION: -parameters
+.TP
+\fB\-parameters\fR
+.
+This option gives a list of named arguments (the names being used during
+generation of error messages) that are passed by the caller of the ensemble
+between the name of the ensemble and the subcommand argument. By default, it
+is the empty list.
+.\" OPTION: -prefixes
 .TP
 \fB\-prefixes\fR
+.
 This option (which is enabled by default) controls whether the
 ensemble command recognizes unambiguous prefixes of its subcommands.
 When turned off, the ensemble command requires exact matching of
 subcommand names.
+.\" OPTION: -subcommands
 .TP
 \fB\-subcommands\fR
+.
 When non-empty, this option lists exactly what subcommands are in the
 ensemble.  The mapping for each of those commands will be either whatever
 is defined in the \fB\-map\fR option, or to the command with the same
@@ -738,8 +835,10 @@ empty, the subcommands of the namespace will either be the keys of the
 dictionary listed in the \fB\-map\fR option or the exported commands
 of the linked namespace at the time of the invocation of the ensemble
 command.
+.\" OPTION: -unknown
 .TP
 \fB\-unknown\fR
+.
 When non-empty, this option provides a partial command (to which all
 the words that are arguments to the ensemble command, including the
 fully-qualified name of the ensemble, are appended) to handle the case
@@ -751,8 +850,10 @@ unable to determine how to implement a particular subcommand.  See
 .PP
 The following extra option is allowed by \fBnamespace ensemble
 create\fR:
+.\" OPTION: -command
 .TP
 \fB\-command\fR
+.
 This write-only option allows the name of the ensemble created by
 \fBnamespace ensemble create\fR to be anything in any existing
 namespace.  The default value for this option is the fully-qualified
@@ -761,8 +862,10 @@ command is invoked.
 .PP
 The following extra option is allowed by \fBnamespace ensemble
 configure\fR:
+.\" OPTION: -namespace
 .TP
 \fB\-namespace\fR
+.
 This read-only option allows the retrieval of the fully-qualified name
 of the namespace which the ensemble was created within.
 .SS "UNKNOWN HANDLER BEHAVIOUR"
@@ -814,29 +917,30 @@ error message from \fBTcl_GetIndexFromObj\fR). This is the error that
 will be thrown when the subcommand is still not recognized during
 reparsing. It is also an error for an \fB\-unknown\fR handler to
 delete its namespace.
-.VE 8.5
 .SH EXAMPLES
 Create a namespace containing a variable and an exported command:
+.PP
 .CS
 \fBnamespace eval\fR foo {
-   variable bar 0
-   proc grill {} {
-      variable bar
-      puts "called [incr bar] times"
-   }
-   \fBnamespace export\fR grill
+    variable bar 0
+    proc grill {} {
+        variable bar
+        puts "called [incr bar] times"
+    }
+    \fBnamespace export\fR grill
 }
 .CE
 .PP
 Call the command defined in the previous example in various ways.
+.PP
 .CS
 # Direct call
 ::foo::grill
 
 # Use the command resolution path to find the name
 \fBnamespace eval\fR boo {
-   \fBnamespace path\fR ::foo
-   grill
+    \fBnamespace path\fR ::foo
+    grill
 }
 
 # Import into current namespace, then call local alias
@@ -846,23 +950,44 @@ grill
 # Create two ensembles, one with the default name and one with a
 # specified name.  Then call through the ensembles.
 \fBnamespace eval\fR foo {
-   \fBnamespace ensemble\fR create
-   \fBnamespace ensemble\fR create -command ::foobar
+    \fBnamespace ensemble\fR create
+    \fBnamespace ensemble\fR create -command ::foobar
 }
 foo grill
 foobar grill
 .CE
 .PP
 Look up where the command imported in the previous example came from:
+.PP
 .CS
 puts "grill came from [\fBnamespace origin\fR grill]"
 .CE
 .PP
 Remove all imported commands from the current namespace:
+.PP
 .CS
 namespace forget {*}[namespace import]
 .CE
+.PP
+Create an ensemble for simple working with numbers, using the
+\fB\-parameters\fR option to allow the operator to be put between the first
+and second arguments.
+.PP
+.CS
+\fBnamespace eval\fR do {
+    \fBnamespace export\fR *
+    \fBnamespace ensemble\fR create -parameters x
+    proc plus  {x y} {expr { $x + $y }}
+    proc minus {x y} {expr { $x - $y }}
+}
+
+# In use, the ensemble works like this:
+puts [do 1 plus [do 9 minus 7]]
+.CE
 .SH "SEE ALSO"
 interp(n), upvar(n), variable(n)
 .SH KEYWORDS
 command, ensemble, exported, internal, variable
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/next.n b/doc/next.n
new file mode 100644
index 0000000..9f25ca2
--- /dev/null
+++ b/doc/next.n
@@ -0,0 +1,213 @@
+'\"
+'\" Copyright (c) 2007 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH next n 0.1 TclOO "TclOO Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+next, nextto \- invoke superclass method implementations
+.SH SYNOPSIS
+.nf
+package require tcl::oo
+
+\fBnext\fR ?\fIarg ...\fR?
+\fBnextto\fI class\fR ?\fIarg ...\fR?
+.fi
+.BE
+
+.SH DESCRIPTION
+.PP
+The \fBnext\fR command is used to call implementations of a method by a class,
+superclass or mixin that are overridden by the current method. It can only be
+used from within a method. It is also used within filters to indicate the
+point where a filter calls the actual implementation (the filter may decide to
+not go along the chain, and may process the results of going along the chain
+of methods as it chooses). The result of the \fBnext\fR command is the result
+of the next method in the method chain; if there are no further methods in the
+method chain, the result of \fBnext\fR will be an error. The arguments,
+\fIarg\fR, to \fBnext\fR are the arguments to pass to the next method in the
+chain.
+.PP
+The \fBnextto\fR command is the same as the \fBnext\fR command, except that it
+takes an additional \fIclass\fR argument that identifies a class whose
+implementation of the current method chain (see \fBinfo object\fR \fBcall\fR)
+should be used; the method implementation selected will be the one provided by
+the given class, and it must refer to an existing non-filter invocation that
+lies further along the chain than the current implementation.
+.SH "THE METHOD CHAIN"
+.PP
+When a method of an object is invoked, things happen in several stages:
+.IP [1]
+The structure of the object, its class, superclasses, filters, and mixins, are
+examined to build a \fImethod chain\fR, which contains a list of method
+implementations to invoke.
+.IP [2]
+The first method implementation on the chain is invoked.
+.IP [3]
+If that method implementation invokes the \fBnext\fR command, the next method
+implementation is invoked (with its arguments being those that were passed to
+\fBnext\fR).
+.IP [4]
+The result from the overall method call is the result from the outermost
+method implementation; inner method implementations return their results
+through \fBnext\fR.
+.IP [5]
+The method chain is cached for future use.
+.SS "METHOD SEARCH ORDER"
+.PP
+When constructing the method chain, method implementations are searched for in
+the following order:
+.IP [1]
+In the classes mixed into the object, in class traversal order. The list of
+mixins is checked in natural order.
+.IP [2]
+In the classes mixed into the classes of the object, with sources of mixing in
+being searched in class traversal order. Within each class, the list of mixins
+is processed in natural order.
+.IP [3]
+In the object itself.
+.IP [4]
+In the object's class.
+.IP [5]
+In the superclasses of the class, following each superclass in a depth-first
+fashion in the natural order of the superclass list.
+.PP
+Any particular method implementation always comes as \fIlate\fR in the
+resulting list of implementations as possible; this means that if some class,
+A, is both mixed into a class, B, and is also a superclass of B, the instances
+of B will always treat A as a superclass from the perspective of inheritance.
+This is true even when the multiple inheritance is processed indirectly.
+.SS FILTERS
+.PP
+When an object has a list of filter names set upon it, or is an instance of a
+class (or has mixed in a class) that has a list of filter names set upon it,
+before every invocation of any method the filters are processed. Filter
+implementations are found in class traversal order, as are the lists of filter
+names (each of which is traversed in natural list order). Explicitly invoking
+a method used as a filter will cause that method to be invoked twice, once as
+a filter and once as a normal method.
+.PP
+Each filter should decide for itself whether to permit the execution to go
+forward to the proper implementation of the method (which it does by invoking
+the \fBnext\fR command as filters are inserted into the front of the method
+call chain) and is responsible for returning the result of \fBnext\fR.
+.PP
+Filters are invoked when processing an invocation of the \fBunknown\fR
+method because of a failure to locate a method implementation, but \fInot\fR
+when invoking either constructors or destructors. (Note however that the
+\fBdestroy\fR method is a conventional method, and filters are invoked as
+normal when it is called.)
+.SH EXAMPLES
+.PP
+This example demonstrates how to use the \fBnext\fR command to call the
+(super)class's implementation of a method. The script:
+.PP
+.CS
+oo::class create theSuperclass {
+    method example {args} {
+        puts "in the superclass, args = $args"
+    }
+}
+
+oo::class create theSubclass {
+    superclass theSuperclass
+    method example {args} {
+        puts "before chaining from subclass, args = $args"
+        \fBnext\fR a {*}$args b
+        \fBnext\fR pureSynthesis
+        puts "after chaining from subclass"
+    }
+}
+
+theSubclass create obj
+oo::objdefine obj method example args {
+    puts "per-object method, args = $args"
+    \fBnext\fR x {*}$args y
+    \fBnext\fR
+}
+obj example 1 2 3
+.CE
+.PP
+prints the following:
+.PP
+.CS
+per-object method, args = 1 2 3
+before chaining from subclass, args = x 1 2 3 y
+in the superclass, args = a x 1 2 3 y b
+in the superclass, args = pureSynthesis
+after chaining from subclass
+before chaining from subclass, args =
+in the superclass, args = a b
+in the superclass, args = pureSynthesis
+after chaining from subclass
+.CE
+.PP
+This example demonstrates how to build a simple cache class that applies
+memoization to all the method calls of the objects it is mixed into, and shows
+how it can make a difference to computation times:
+.PP
+.CS
+oo::class create cache {
+    filter Memoize
+    method Memoize args {
+        \fI# Do not filter the core method implementations\fR
+        if {[lindex [self target] 0] eq "::oo::object"} {
+            return [\fBnext\fR {*}$args]
+        }
+
+        \fI# Check if the value is already in the cache\fR
+        my variable ValueCache
+        set key [self target],$args
+        if {[info exist ValueCache($key)]} {
+            return $ValueCache($key)
+        }
+
+        \fI# Compute value, insert into cache, and return it\fR
+        return [set ValueCache($key) [\fBnext\fR {*}$args]]
+    }
+
+    method flushCache {} {
+        my variable ValueCache
+        unset ValueCache
+        \fI# Skip the caching\fR
+        return -level 2 ""
+    }
+}
+
+oo::object create demo
+oo::objdefine demo {
+    mixin cache
+
+    method compute {a b c} {
+        after 3000 \fI;# Simulate deep thought\fR
+        return [expr {$a + $b * $c}]
+    }
+
+    method compute2 {a b c} {
+        after 3000 \fI;# Simulate deep thought\fR
+        return [expr {$a * $b + $c}]
+    }
+}
+
+puts [demo compute  1 2 3]      \fI\(-> prints "7" after delay\fR
+puts [demo compute2 4 5 6]      \fI\(-> prints "26" after delay\fR
+puts [demo compute  1 2 3]      \fI\(-> prints "7" instantly\fR
+puts [demo compute2 4 5 6]      \fI\(-> prints "26" instantly\fR
+puts [demo compute  4 5 6]      \fI\(-> prints "34" after delay\fR
+puts [demo compute  4 5 6]      \fI\(-> prints "34" instantly\fR
+puts [demo compute  1 2 3]      \fI\(-> prints "7" instantly\fR
+demo flushCache
+puts [demo compute  1 2 3]      \fI\(-> prints "7" after delay\fR
+.CE
+.SH "SEE ALSO"
+oo::class(n), oo::define(n), oo::object(n), self(n)
+.SH KEYWORDS
+call, method, method chain
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/object.n b/doc/object.n
new file mode 100644
index 0000000..4a81043
--- /dev/null
+++ b/doc/object.n
@@ -0,0 +1,139 @@
+'\"
+'\" Copyright (c) 2007-2008 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH object n 0.1 TclOO "TclOO Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+oo::object \- root class of the class hierarchy
+.SH SYNOPSIS
+.nf
+package require tcl::oo
+
+\fBoo::object\fI method \fR?\fIarg ...\fR?
+.fi
+.SH "CLASS HIERARCHY"
+.nf
+\fBoo::object\fR
+.fi
+.BE
+.SH DESCRIPTION
+.PP
+The \fBoo::object\fR class is the root class of the object hierarchy; every
+object is an instance of this class. Since classes are themselves objects,
+they are instances of this class too. Objects are always referred to by their
+name, and may be \fBrename\fRd while maintaining their identity.
+.PP
+Instances of objects may be made with either the \fBcreate\fR or \fBnew\fR
+methods of the \fBoo::object\fR object itself, or by invoking those methods on
+any of the subclass objects; see \fBoo::class\fR for more details. The
+configuration of individual objects (i.e., instance-specific methods, mixed-in
+classes, etc.) may be controlled with the \fBoo::objdefine\fR command.
+.PP
+Each object has a unique namespace associated with it, the instance namespace.
+This namespace holds all the instance variables of the object, and will be the
+current namespace whenever a method of the object is invoked (including a
+method of the class of the object). When the object is destroyed, its instance
+namespace is deleted. The instance namespace contains the object's \fBmy\fR
+command, which may be used to invoke non-exported methods of the object or to
+create a reference to the object for the purpose of invocation which persists
+across renamings of the object.
+.SS CONSTRUCTOR
+The \fBoo::object\fR class does not define an explicit constructor.
+.SS DESTRUCTOR
+The \fBoo::object\fR class does not define an explicit destructor.
+.SS "EXPORTED METHODS"
+The \fBoo::object\fR class supports the following exported methods:
+.\" METHOD: destroy
+.TP
+\fIobj \fBdestroy\fR
+.
+This method destroys the object, \fIobj\fR, that it is invoked upon, invoking
+any destructors on the object's class in the process. It is equivalent to
+using \fBrename\fR to delete the object command. The result of this method is
+always the empty string.
+.SS "NON-EXPORTED METHODS"
+.PP
+The \fBoo::object\fR class supports the following non-exported methods:
+.\" METHOD: eval
+.TP
+\fIobj \fBeval\fR ?\fIarg ...\fR?
+.
+This method concatenates the arguments, \fIarg\fR, as if with \fBconcat\fR,
+and then evaluates the resulting script in the namespace that is uniquely
+associated with \fIobj\fR, returning the result of the evaluation.
+.RS
+.PP
+Note that object-internal commands such as \fBmy\fR and \fBself\fR can be
+invoked in this context.
+.RE
+.\" METHOD: unknown
+.TP
+\fIobj \fBunknown ?\fImethodName\fR? ?\fIarg ...\fR?
+.
+This method is called when an attempt to invoke the method \fImethodName\fR on
+object \fIobj\fR fails. The arguments that the user supplied to the method are
+given as \fIarg\fR arguments.
+.VS
+If \fImethodName\fR is absent, the object was invoked with no method name at
+all (or any other arguments).
+.VE
+The default implementation (i.e., the one defined by the \fBoo::object\fR
+class) generates a suitable error, detailing what methods the object supports
+given whether the object was invoked by its public name or through the
+\fBmy\fR command.
+.\" METHOD: variable
+.TP
+\fIobj \fBvariable \fR?\fIvarName ...\fR?
+.
+This method arranges for each variable called \fIvarName\fR to be linked from
+the object \fIobj\fR's unique namespace into the caller's context. Thus, if it
+is invoked from inside a procedure then the namespace variable in the object
+is linked to the local variable in the procedure. Each \fIvarName\fR argument
+must not have any namespace separators in it. The result is the empty string.
+.\" METHOD: varname
+.TP
+\fIobj \fBvarname \fIvarName\fR
+.
+This method returns the globally qualified name of the variable \fIvarName\fR
+in the unique namespace for the object \fIobj\fR.
+.\" METHOD: <cloned>
+.TP
+\fIobj \fB<cloned> \fIsourceObjectName\fR
+.VS
+This method is used by the \fBoo::object\fR command to copy the state of one
+object to another. It is responsible for copying the procedures and variables
+of the namespace of the source object (\fIsourceObjectName\fR) to the current
+object. It does not copy any other types of commands or any traces on the
+variables; that can be added if desired by overriding this method in a
+subclass.
+.VE
+.SH EXAMPLES
+.PP
+This example demonstrates basic use of an object.
+.PP
+.CS
+set obj [\fBoo::object\fR new]
+$obj foo             \fI\(-> error "unknown method foo"\fR
+oo::objdefine $obj method foo {} {
+    my \fBvariable\fR count
+    puts "bar[incr count]"
+}
+$obj foo             \fI\(-> prints "bar1"\fR
+$obj foo             \fI\(-> prints "bar2"\fR
+$obj variable count  \fI\(-> error "unknown method variable"\fR
+$obj \fBdestroy\fR
+$obj foo             \fI\(-> error "unknown command obj"\fR
+.CE
+.SH "SEE ALSO"
+my(n), oo::class(n)
+.SH KEYWORDS
+base class, class, object, root class
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/open.n b/doc/open.n
index 844433e..1b6ef9d 100644
--- a/doc/open.n
+++ b/doc/open.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH open n 8.3 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,12 +12,11 @@
 .SH NAME
 open \- Open a file-based or command pipeline channel
 .SH SYNOPSIS
-.sp
+.nf
 \fBopen \fIfileName\fR
-.br
 \fBopen \fIfileName access\fR
-.br
 \fBopen \fIfileName access permissions\fR
+.fi
 .BE
 .SH DESCRIPTION
 .PP
@@ -32,75 +31,56 @@ conventions described in the \fBfilename\fR manual entry.
 The \fIaccess\fR argument, if present, indicates the way in which the file
 (or command pipeline) is to be accessed.
 In the first form \fIaccess\fR may have any of the following values:
-.TP 15
-\fBr\fR
+.IP \fBr\fR
 Open the file for reading only; the file must already exist. This is the
 default value if \fIaccess\fR is not specified.
-.TP 15
-\fBr+\fR
+.IP \fBr+\fR
 Open the file for both reading and writing; the file must
 already exist.
-.TP 15
-\fBw\fR
+.IP \fBw\fR
 Open the file for writing only.  Truncate it if it exists.  If it does not
 exist, create a new file.
-.TP 15
-\fBw+\fR
+.IP \fBw+\fR
 Open the file for reading and writing.  Truncate it if it exists.
 If it does not exist, create a new file.
-.TP 15
-\fBa\fR
+.IP \fBa\fR
 Open the file for writing only.  If the file does not exist,
 create a new empty file.
 Set the file pointer to the end of the file prior to each write.
-.TP 15
-\fBa+\fR
+.IP \fBa+\fR
 Open the file for reading and writing.  If the file does not exist,
 create a new empty file.
 Set the initial access position  to the end of the file.
-.VS 8.5
 .PP
 All of the legal \fIaccess\fR values above may have the character
 \fBb\fR added as the second or third character in the value to
-indicate that the opened channel should be configured with the
-\fB\-translation binary\fR option, making the channel suitable for 
+indicate that the opened channel should be configured as if with the
+\fBfconfigure\fR \fB\-translation binary\fR option, making the channel suitable for
 reading or writing of binary data.
-.VE 8.5
 .PP
 In the second form, \fIaccess\fR consists of a list of any of the
 following flags, most of which have the standard POSIX meanings.
 One of the flags must be either \fBRDONLY\fR, \fBWRONLY\fR or \fBRDWR\fR.
-.TP 15
-\fBRDONLY\fR
+.IP \fBRDONLY\fR
 Open the file for reading only.
-.TP 15
-\fBWRONLY\fR
+.IP \fBWRONLY\fR
 Open the file for writing only.
-.TP 15
-\fBRDWR\fR
+.IP \fBRDWR\fR
 Open the file for both reading and writing.
-.TP 15
-\fBAPPEND\fR
+.IP \fBAPPEND\fR
 Set the file pointer to the end of the file prior to each write.
-.VS 8.5
-.TP 15
-\fBBINARY\fR
+.IP \fBBINARY\fR
 Configure the opened channel with the \fB\-translation binary\fR option.
-.VE 8.5
-.TP 15
-\fBCREAT\fR
+.IP \fBCREAT\fR
 Create the file if it does not already exist (without this flag it
 is an error for the file not to exist).
-.TP 15
-\fBEXCL\fR
+.IP \fBEXCL\fR
 If \fBCREAT\fR is also specified, an error is returned if the
 file already exists.
-.TP 15
-\fBNOCTTY\fR
+.IP \fBNOCTTY\fR
 If the file is a terminal device, this flag prevents the file from
 becoming the controlling terminal of the process.
-.TP 15
-\fBNONBLOCK\fR
+.IP \fBNONBLOCK\fR
 Prevents the process from blocking while opening the file, and
 possibly in subsequent I/O operations.  The exact behavior of
 this flag is system- and device-dependent;  its use is discouraged
@@ -108,18 +88,40 @@ this flag is system- and device-dependent;  its use is discouraged
 in nonblocking mode).
 For details refer to your system documentation on the \fBopen\fR system
 call's \fBO_NONBLOCK\fR flag.
-.TP 15
-\fBTRUNC\fR
+.IP \fBTRUNC\fR
 If the file exists it is truncated to zero length.
 .PP
 If a new file is created as part of opening it, \fIpermissions\fR
 (an integer) is used to set the permissions for the new file in
 conjunction with the process's file mode creation mask.
 \fIPermissions\fR defaults to 0666.
+.PP
+.VS TIP603
+When the file opened is an ordinary disk file, the \fBchan configure\fR and
+\fBfconfigure\fR commands can be used to query this additional configuration
+option:
+.\" OPTION: -stat
+.TP
+\fB\-stat\fR
+.
+This option, when read, returns a dictionary of values much as is obtained
+from the \fBfile stat\fR command, where that stat information relates to the
+real opened file. Keys in the dictionary may include \fBatime\fR, \fBctime\fR,
+\fBdev\fR, \fBgid\fR, \fBino\fR, \fBmode\fR, \fBmtime\fR, \fBnlink\fR,
+\fBsize\fR, \fBtype\fR, and \fBuid\fR among others; the \fBmtime\fR,
+\fBsize\fR and \fBtype\fR fields are guaranteed to be present and meaningful
+on all platforms; other keys may be present too.
+.RS
+.PP
+\fIImplementation note:\fR This option maps to a call to \fBfstat()\fR on
+POSIX platforms, and to a call to \fBGetFileInformationByHandle()\fR on
+Windows; the information reported is what those system calls produce.
+.RE
+.VE TIP603
 .SH "COMMAND PIPELINES"
 .PP
 If the first character of \fIfileName\fR is
-.QW |
+.QW \fB|\fR
 then the
 remaining characters of \fIfileName\fR are treated as a list of arguments
 that describe a command pipeline to invoke, in the same style as the
@@ -127,10 +129,12 @@ arguments for \fBexec\fR.
 In this case, the channel identifier returned by \fBopen\fR may be used
 to write to the command's input pipe or read from its output pipe,
 depending on the value of \fIaccess\fR.
-If write-only access is used (e.g. \fIaccess\fR is \fBw\fR), then
-standard output for the pipeline is directed to the current standard
+If write-only access is used (e.g. \fIaccess\fR is
+.QW \fBw\fR ),
+then standard output for the pipeline is directed to the current standard
 output unless overridden by the command.
-If read-only access is used (e.g. \fIaccess\fR is \fBr\fR),
+If read-only access is used (e.g. \fIaccess\fR is
+.QW \fBr\fR ),
 standard input for the pipeline is taken from the current standard
 input unless overridden by the command.
 The id of the spawned process is accessible through the \fBpid\fR
@@ -152,10 +156,13 @@ is opened and initialized in a platform-dependent manner.  Acceptable
 values for the \fIfileName\fR to use to open a serial port are described in
 the PORTABILITY ISSUES section.
 .PP
-The \fBfconfigure\fR command can be used to query and set additional
-configuration options specific to serial ports (where supported):
+The \fBchan configure\fR and \fBfconfigure\fR commands can be used to query
+and set additional configuration options specific to serial ports (where
+supported):
+.\" OPTION: -mode
 .TP
-\fB\-mode\fR \fIbaud\fB,\fIparity\fB,\fIdata\fB,\fIstop\fR
+\fB\-mode\fI baud\fB,\fIparity\fB,\fIdata\fB,\fIstop\fR
+.
 This option is a set of 4 comma-separated values: the baud rate, parity,
 number of data bits, and number of stop bits for this serial port.  The
 \fIbaud\fR rate is a simple integer that specifies the connection speed.
@@ -170,8 +177,10 @@ or
 \fIData\fR is the number of
 data bits and should be an integer from 5 to 8, while \fIstop\fR is the
 number of stop bits and should be the integer 1 or 2.
+.\" OPTION: -handshake
 .TP
-\fB\-handshake\fR \fItype\fR
+\fB\-handshake\fI type\fR
+.
 (Windows and Unix). This option is used to setup automatic handshake
 control. Note that not all handshake types maybe supported by your operating
 system. The \fItype\fR parameter is case-independent.
@@ -187,13 +196,17 @@ There is no default handshake configuration, the initial value depends
 on your operating system settings.
 The \fB\-handshake\fR option cannot be queried.
 .RE
+.\" OPTION: -queue
 .TP
 \fB\-queue\fR
+.
 (Windows and Unix). The \fB\-queue\fR option can only be queried.
 It returns a list of two integers representing the current number
 of bytes in the input and output queue respectively.
+.\" OPTION: -timeout
 .TP
-\fB\-timeout\fR \fImsec\fR
+\fB\-timeout\fI msec\fR
+.
 (Windows and Unix). This option is used to set the timeout for blocking
 read operations. It specifies the maximum interval between the
 reception of two bytes in milliseconds.
@@ -201,8 +214,10 @@ For Unix systems the granularity is 100 milliseconds.
 The \fB\-timeout\fR option does not affect write operations or
 nonblocking reads.
 This option cannot be queried.
+.\" OPTION: -ttycontrol
 .TP
-\fB\-ttycontrol\fR \fI{signal boolean signal boolean ...}\fR
+\fB\-ttycontrol\fI {signal boolean signal boolean ...}\fR
+.
 (Windows and Unix). This option is used to setup the handshake
 output lines (see below) permanently or to send a BREAK over the serial line.
 The \fIsignal\fR names are case-independent.
@@ -213,45 +228,113 @@ It is not a good idea to change the \fBRTS\fR (or \fBDTR\fR) signal
 with active hardware handshake \fBrtscts\fR (or \fBdtrdsr\fR).
 The result is unpredictable.
 The \fB\-ttycontrol\fR option cannot be queried.
+.\" OPTION: -ttystatus
 .TP
 \fB\-ttystatus\fR
+.
 (Windows and Unix). The \fB\-ttystatus\fR option can only be
 queried.  It returns the current modem status and handshake input signals
 (see below).
 The result is a list of signal,value pairs with a fixed order,
 e.g. \fB{CTS 1 DSR 0 RING 1 DCD 0}\fR.
 The \fIsignal\fR names are returned upper case.
+.\" OPTION: -xchar
 .TP
-\fB\-xchar\fR \fI{xonChar xoffChar}\fR
+\fB\-xchar\fI {xonChar xoffChar}\fR
+.
 (Windows and Unix). This option is used to query or change the software
 handshake characters. Normally the operating system default should be
 DC1 (0x11) and DC3 (0x13) representing the ASCII standard
 XON and XOFF characters.
+.\" OPTION: -closemode
 .TP
-\fB\-pollinterval\fR \fImsec\fR
+\fB\-closemode\fI closeMode\fR
+.VS TIP160
+(Windows and Unix). This option is used to query or change the close mode of
+the serial channel, which defines how pending output in operating system
+buffers is handled when the channel is closed. The following values for
+\fIcloseMode\fR are supported:
+.RS
+.IP \fBdefault\fR
+indicates that a system default operation should be used; all serial channels
+default to this.
+.IP \fBdiscard\fR
+indicates that the contents of the OS buffers should be discarded.  Note that
+this is \fInot recommended\fR when writing to a POSIX terminal, as it can
+interact unexpectedly with handling of \fBstderr\fR.
+.IP \fBdrain\fR
+indicates that Tcl should wait when closing the channel until all output has
+been consumed. This may slow down \fBclose\fR noticeably.
+.RE
+.VE TIP160
+.\" OPTION: -inputmode
+.TP
+\fB\-inputmode\fI inputMode\fR
+.VS TIP160
+(Unix only; Windows has the equivalent option on console channels). This
+option is used to query or change the input mode of the serial channel under
+the assumption that it is talking to a terminal, which controls how interactive
+input from users is handled. The following values for \fIinputMode\fR are
+supported:
+.RS
+.IP \fBnormal\fR
+indicates that normal line-oriented input should be used, with standard
+terminal editing capabilities enabled.
+.IP \fBpassword\fR
+indicates that non-echoing input should be used, with standard terminal
+editing capabilities enabled but no writing of typed characters to the
+terminal (except for newlines). Some terminals may indicate this specially.
+.IP \fBraw\fR
+indicates that all keyboard input should be given directly to Tcl with the
+terminal doing no processing at all. It does not echo the keys, leaving it up
+to the Tcl script to interpret what to do.
+.IP "\fBreset\fR (set only)"
+indicates that the terminal should be reset to what state it was in when the
+terminal was opened.
+.PP
+Note that setting this option (technically, anything that changes the terminal
+state from its initial value \fIvia this option\fR) will cause the channel to
+turn on an automatic reset of the terminal when the channel is closed.
+.RE
+.\" OPTION: -winsize
+.TP
+\fB\-winsize\fR
+.
+(Unix only; Windows has the equivalent option on console channels). This
+option is query only. It retrieves a two-element list with the the current
+width and height of the terminal.
+.VE TIP160
+.\" OPTION: -pollinterval
+.TP
+\fB\-pollinterval\fI msec\fR
+.
 (Windows only). This option is used to set the maximum time between
 polling for fileevents.
 This affects the time interval between checking for events throughout the Tcl
 interpreter (the smallest value always wins).  Use this option only if
 you want to poll the serial port more or less often than 10 msec
 (the default).
+.\" OPTION: -sysbuffer
 .TP
-\fB\-sysbuffer\fR \fIinSize\fR
+\fB\-sysbuffer\fI inSize\fR
 .TP
-\fB\-sysbuffer\fR \fI{inSize outSize}\fR
+\fB\-sysbuffer\fI {inSize outSize}\fR
+.
 (Windows only). This option is used to change the size of Windows
 system buffers for a serial channel. Especially at higher communication
 rates the default input buffer size of 4096 bytes can overrun
 for latent systems. The first form specifies the input buffer size,
 in the second form both input and output buffers are defined.
+.\" OPTION: -lasterror
 .TP
 \fB\-lasterror\fR
+.
 (Windows only). This option is query only.
 In case of a serial communication error, \fBread\fR or \fBputs\fR
 returns a general Tcl file I/O error.
-\fBfconfigure -lasterror\fR can be called to get a list of error details.
+\fBfconfigure\fR \fB\-lasterror\fR can be called to get a list of error details.
 See below for an explanation of the various error codes.
-.SH "SERIAL PORT SIGNALS"
+.SS "SERIAL PORT SIGNALS"
 .PP
 RS-232 is the most commonly used standard electrical interface for serial
 communications. A negative voltage (-3V..-12V) define a mark (on=1) bit and
@@ -261,29 +344,29 @@ lines and handshaking. Here we are using the terms \fIworkstation\fR for
 your computer and \fImodem\fR for the external device, because some signal
 names (DCD, RI) come from modems. Of course your external device may use
 these signal lines for other purposes.
-.IP \fBTXD(output)\fR
+.IP "\fBTXD\fR (output)"
 \fBTransmitted Data:\fR Outgoing serial data.
-.IP \fBRXD(input)\fR
+.IP "\fBRXD\fR (input)"
 \fBReceived Data:\fRIncoming serial data.
-.IP \fBRTS(output)\fR
+.IP "\fBRTS\fR (output)"
 \fBRequest To Send:\fR This hardware handshake line informs the modem that
 your workstation is ready to receive data. Your workstation may
 automatically reset this signal to indicate that the input buffer is full.
-.IP \fBCTS(input)\fR
+.IP "\fBCTS\fR (input)"
 \fBClear To Send:\fR The complement to RTS. Indicates that the modem is
 ready to receive data.
-.IP \fBDTR(output)\fR
+.IP "\fBDTR\fR (output)"
 \fBData Terminal Ready:\fR This signal tells the modem that the workstation
 is ready to establish a link. DTR is often enabled automatically whenever a
 serial port is opened.
-.IP \fBDSR(input)\fR
+.IP "\fBDSR\fR (input)"
 \fBData Set Ready:\fR The complement to DTR. Tells the workstation that the
 modem is ready to establish a link.
-.IP \fBDCD(input)\fR
+.IP "\fBDCD\fR (input)"
 \fBData Carrier Detect:\fR This line becomes active when a modem detects a
 .QW Carrier
 signal.
-.IP \fBRI(input)\fR
+.IP "\fBRI\fR (input)"
 \fBRing Indicator:\fR Goes active when the modem detects an incoming call.
 .IP \fBBREAK\fR
 A BREAK condition is not a hardware signal line, but a logical zero on the
@@ -292,46 +375,41 @@ milliseconds.  Normally a receive or transmit data signal stays at the mark
 (on=1) voltage until the next character is transferred. A BREAK is sometimes
 used to reset the communications line or change the operating mode of
 communications hardware.
-.SH "ERROR CODES (Windows only)"
+.SS "ERROR CODES (Windows only)"
 .PP
 A lot of different errors may occur during serial read operations or during
 event polling in background. The external device may have been switched
 off, the data lines may be noisy, system buffers may overrun or your mode
 settings may be wrong.  That is why a reliable software should always
 \fBcatch\fR serial read operations.  In cases of an error Tcl returns a
-general file I/O error.  Then \fBfconfigure -lasterror\fR may help to
+general file I/O error.  Then \fBfconfigure\fR \fB\-lasterror\fR may help to
 locate the problem.  The following error codes may be returned.
-.TP 10
-\fBRXOVER\fR
+.IP \fBRXOVER\fR
 Windows input buffer overrun. The data comes faster than your scripts reads
-it or your system is overloaded. Use \fBfconfigure -sysbuffer\fR to avoid a
-temporary bottleneck and/or make your script faster.
-.TP 10
-\fBTXFULL\fR
+it or your system is overloaded. Use \fBfconfigure\fR \fB\-sysbuffer\fR to
+avoid a temporary bottleneck and/or make your script faster.
+.IP \fBTXFULL\fR
 Windows output buffer overrun. Complement to RXOVER. This error should
 practically not happen, because Tcl cares about the output buffer status.
-.TP 10
-\fBOVERRUN\fR
+.IP \fBOVERRUN\fR
 UART buffer overrun (hardware) with data lost.
 The data comes faster than the system driver receives it.
 Check your advanced serial port settings to enable the FIFO (16550) buffer
 and/or setup a lower(1) interrupt threshold value.
-.TP 10
-\fBRXPARITY\fR
+.IP \fBRXPARITY\fR
 A parity error has been detected by your UART.
-Wrong parity settings with \fBfconfigure -mode\fR or a noisy data line (RXD)
-may cause this error.
-.TP 10
-\fBFRAME\fR
+Wrong parity settings with \fBfconfigure\fR \fB\-mode\fR or a noisy data line
+(RXD) may cause this error.
+.IP \fBFRAME\fR
 A stop-bit error has been detected by your UART.
-Wrong mode settings with \fBfconfigure -mode\fR or a noisy data line (RXD)
-may cause this error.
-.TP 10
-\fBBREAK\fR
+Wrong mode settings with \fBfconfigure\fR \fB\-mode\fR or a noisy data line
+(RXD) may cause this error.
+.IP \fBBREAK\fR
 A BREAK condition has been detected by your UART (see above).
-.SH "PORTABILITY ISSUES"
+.SS "PORTABILITY ISSUES"
 .TP
 \fBWindows \fR
+.
 Valid values for \fIfileName\fR to open a serial port are of the form
 \fBcom\fIX\fB\fR, where \fIX\fR is a number, generally from 1 to 9.
 A legacy form accepted as well is \fBcom\fIX\fB:\fR. This notation only
@@ -339,8 +417,8 @@ works for serial ports from 1 to 9.  An attempt to open a serial port that
 does not exist or has a number greater than 9 will fail.  An alternate
 form of opening serial ports is to use the filename \fB//./comX\fR,
 where X is any number that corresponds to a serial port.
-.RS
 .PP
+.RS
 When running Tcl interactively, there may be some strange interactions
 between the real console, if one is present, and a command pipeline that uses
 standard input or output.  If a command pipeline is opened for reading, some
@@ -360,7 +438,8 @@ before each write, which is not an atomic operation and does not carry the
 guarantee of strict appending that is present on POSIX platforms.
 .RE
 .TP
-\fBUnix\fR\0\0\0\0\0\0\0
+\fBUnix \fR
+.
 Valid values for \fIfileName\fR to open a serial port are generally of the
 form \fB/dev/tty\fIX\fR, where \fIX\fR is \fBa\fR or \fBb\fR, but the name
 of any pseudo-file that maps to a serial port may be used.
@@ -376,12 +455,56 @@ some will be sent to the Tcl evaluator.  This problem only occurs because
 both Tcl and the child application are competing for the console at the
 same time.  If the command pipeline is started from a script, so that Tcl is
 not accessing the console, or if the command pipeline does not use standard
-input, but is redirected from a file, then the above problem does not occur.  
+input, but is redirected from a file, then the above problem does not occur.
 .RE
 .PP
 See the \fBPORTABILITY ISSUES\fR section of the \fBexec\fR command for
 additional information not specific to command pipelines about executing
 applications on the various platforms
+.SH "CONSOLE CHANNELS"
+.VS TIP160
+On Windows only, console channels (usually \fBstdin\fR or \fBstdout\fR)
+support the following options:
+.\" OPTION: -inputmode
+.TP
+\fB\-inputmode\fI inputMode\fR
+.
+This option is used to query or change the input mode of the console channel,
+which controls how interactive input from users is handled. The following
+values for \fIinputMode\fR are supported:
+.RS
+.IP \fBnormal\fR
+indicates that normal line-oriented input should be used, with standard
+console editing capabilities enabled.
+.IP \fBpassword\fR
+indicates that non-echoing input should be used, with standard console
+editing capabilities enabled but no writing of typed characters to the
+terminal (except for newlines).
+.IP \fBraw\fR
+indicates that all keyboard input should be given directly to Tcl with the
+console doing no processing at all. It does not echo the keys, leaving it up
+to the Tcl script to interpret what to do.
+.TP
+\fBreset\fR (set only)
+.
+indicates that the console should be reset to what state it was in when the
+console channel was opened.
+.PP
+Note that setting this option (technically, anything that changes the console
+state from its default \fIvia this option\fR) will cause the channel to turn
+on an automatic reset of the console when the channel is closed.
+.RE
+.\" OPTION: -winsize
+.TP
+\fB\-winsize\fR
+.
+This option is query only.
+It retrieves a two-element list with the current width and height of the
+console that this channel is talking to.
+.PP
+Note that the equivalent options exist on Unix, but are on the serial channel
+type.
+.VE TIP160
 .SH "EXAMPLES"
 Open a file for writing, forcing it to be created and raising an error if it
 already exists.
@@ -418,9 +541,28 @@ set fl [\fBopen\fR |[list create_image_data $input] "rb"]
 set binData [read $fl]
 close $fl
 .CE
+.PP
+.VS TIP160
+Read a password securely from the user (assuming that the script is being run
+interactively):
+.PP
+.CS
+chan configure stdin \fB-inputmode password\fR
+try {
+    chan puts -nonewline "Password: "
+    chan flush stdout
+    set thePassword [chan gets stdin]
+} finally {
+    chan configure stdin \fB-inputmode reset\fR
+}
+.CE
+.VE TIP160
 .SH "SEE ALSO"
 file(n), close(n), filename(n), fconfigure(n), gets(n), read(n),
 puts(n), exec(n), pid(n), fopen(3)
 .SH KEYWORDS
 access mode, append, create, file, non-blocking, open, permissions,
 pipeline, process, serial
+'\"Local Variables:
+'\"mode: nroff
+'\"End:
diff --git a/doc/package.n b/doc/package.n
index dd1fc36..ba95c31 100644
--- a/doc/package.n
+++ b/doc/package.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH package n 7.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,7 +12,8 @@
 package \- Facilities for package loading and version control
 .SH SYNOPSIS
 .nf
-\fBpackage forget ?\fIpackage package ...\fR?
+\fBpackage files\fI package\fR
+\fBpackage forget\fR ?\fIpackage package ...\fR?
 \fBpackage ifneeded \fIpackage version\fR ?\fIscript\fR?
 \fBpackage names\fR
 \fBpackage present \fIpackage \fR?\fIrequirement...\fR?
@@ -27,7 +28,6 @@ package \- Facilities for package loading and version control
 \fBpackage prefer \fR?\fBlatest\fR|\fBstable\fR?
 .fi
 .BE
-
 .SH DESCRIPTION
 .PP
 This command keeps a simple database of the packages available for
@@ -43,13 +43,25 @@ primarily by system scripts that maintain the package database.
 .PP
 The behavior of the \fBpackage\fR command is determined by its first argument.
 The following forms are permitted:
+.\" METHOD: files
+.TP
+\fBpackage files \fIpackage\fR
+.
+Lists all files forming part of \fIpackage\fR. Auto-loaded files are not
+included in this list, only files which were directly sourced during package
+initialization. The list order corresponds with the order in which the
+files were sourced.
+.\" METHOD: forget
 .TP
-\fBpackage forget ?\fIpackage package ...\fR?
+\fBpackage forget\fR ?\fIpackage package ...\fR?
+.
 Removes all information about each specified package from this interpreter,
 including information provided by both \fBpackage ifneeded\fR and
 \fBpackage provide\fR.
+.\" METHOD: ifneeded
 .TP
 \fBpackage ifneeded \fIpackage version\fR ?\fIscript\fR?
+.
 This command typically appears only in system configuration
 scripts to set up the package database.
 It indicates that a particular version of
@@ -69,20 +81,25 @@ If the \fIscript\fR argument is omitted, the current script for
 version \fIversion\fR of package \fIpackage\fR is returned,
 or an empty string if no \fBpackage ifneeded\fR command has
 been invoked for this \fIpackage\fR and \fIversion\fR.
+.\" METHOD: names
 .TP
 \fBpackage names\fR
+.
 Returns a list of the names of all packages in the
 interpreter for which a version has been provided (via
 \fBpackage provide\fR) or for which a \fBpackage ifneeded\fR
 script is available.
 The order of elements in the list is arbitrary.
+.\" METHOD: present
 .TP
 \fBpackage present\fR ?\fB\-exact\fR? \fIpackage\fR ?\fIrequirement...\fR?
 .
 This command is equivalent to \fBpackage require\fR except that it
 does not try and load the package if it is not already loaded.
+.\" METHOD: provide
 .TP
 \fBpackage provide \fIpackage \fR?\fIversion\fR?
+.
 This command is invoked to indicate that version \fIversion\fR
 of package \fIpackage\fR is now present in the interpreter.
 It is typically invoked once as part of an \fBifneeded\fR script,
@@ -92,9 +109,11 @@ provided by a previous \fBpackage provide\fR command.
 If the \fIversion\fR argument is omitted, then the command
 returns the version number that is currently provided, or an
 empty string if no \fBpackage provide\fR command has been
-invoked for \fIpackage\fR in this interpreter.  
+invoked for \fIpackage\fR in this interpreter.
+.\" METHOD: require
 .TP
-\fBpackage require\fR \fIpackage \fR?\fIrequirement...\fR?
+\fBpackage require \fR\fIpackage \fR?\fIrequirement...\fR?
+.
 This command is typically invoked by Tcl code that wishes to use
 a particular version of a particular package.  The arguments
 indicate which package is wanted, and the command ensures that
@@ -104,8 +123,8 @@ loaded;  otherwise it generates an error.
 .RS
 .PP
 A suitable version of the package is any version which satisfies at
-least one of the requirements, per the rules of \fBpackage
-vsatisfies\fR. If multiple versions are suitable the implementation
+least one of the requirements as defined in the section \fBREQUIREMENT\fR below.
+If multiple versions are suitable the implementation
 with the highest version is chosen. This last part is additionally
 influenced by the selection mode set with \fBpackage prefer\fR.
 .PP
@@ -140,11 +159,14 @@ package, then the command returns an error.
 .RE
 .TP
 \fBpackage require \-exact \fIpackage version\fR
+.
 This form of the command is used when only the given \fIversion\fR
 of \fIpackage\fR is acceptable to the caller.  This command is
 equivalent to \fBpackage require \fIpackage version\fR-\fIversion\fR.
+.\" METHOD: unknown
 .TP
 \fBpackage unknown \fR?\fIcommand\fR?
+.
 This command supplies a
 .QW "last resort"
 command to invoke during
@@ -164,84 +186,30 @@ argument, then the current \fBpackage unknown\fR script is returned,
 or an empty string if there is none.
 If \fIcommand\fR is specified as an empty string, then the current
 \fBpackage unknown\fR script is removed, if there is one.
+.\" METHOD: vcompare
 .TP
 \fBpackage vcompare \fIversion1 version2\fR
+.
 Compares the two version numbers given by \fIversion1\fR and \fIversion2\fR.
 Returns -1 if \fIversion1\fR is an earlier version than \fIversion2\fR,
-0 if they are equal, and 1 if \fIversion1\fR is later than \fBversion2\fR.
+0 if they are equal, and 1 if \fIversion1\fR is later than \fIversion2\fR.
+.\" METHOD: versions
 .TP
 \fBpackage versions \fIpackage\fR
+.
 Returns a list of all the version numbers of \fIpackage\fR
 for which information has been provided by \fBpackage ifneeded\fR
 commands.
+.\" METHOD: vsatisfies
 .TP
 \fBpackage vsatisfies \fIversion requirement...\fR
+.
 Returns 1 if the \fIversion\fR satisfies at least one of the given
-requirements, and 0 otherwise. Each \fIrequirement\fR is allowed to
-have any of the forms:
-.RS
-.TP
-min
-This form is called
-.QW min-bounded .
-.TP
-min-
-This form is called
-.QW min-unbound .
-.TP
-min-max
-This form is called
-.QW bounded .
-.RE
-.RS
-.PP
-where
-.QW min
-and
-.QW max
-are valid version numbers. The legacy syntax is
-a special case of the extended syntax, keeping backward
-compatibility. Regarding satisfaction the rules are:
-.RE
-.RS
-.IP [1]
-The \fIversion\fR has to pass at least one of the listed
-\fIrequirement\fRs to be satisfactory.
-.IP [2]
-A version satisfies a
-.QW bounded
-requirement when
-.RS
-.IP [a]
-For \fImin\fR equal to the \fImax\fR if, and only if the \fIversion\fR
-is equal to the \fImin\fR.
-.IP [b]
-Otherwise if, and only if the \fIversion\fR is greater than or equal
-to the \fImin\fR, and less than the \fImax\fR, where both \fImin\fR
-and \fImax\fR have been padded internally with
-.QW a0 .
-Note that while the comparison to \fImin\fR is inclusive, the
-comparison to \fImax\fR is exclusive.
-.RE
-.IP [3]
-A
-.QW min-bounded
-requirement is a
-.QW bounded
-requirement in disguise,
-with the \fImax\fR part implicitly specified as the next higher major
-version number of the \fImin\fR part. A version satisfies it per the
-rules above.
-.IP [4]
-A \fIversion\fR satisfies a
-.QW min-unbound
-requirement if, and only if it is greater than or equal to the
-\fImin\fR, where the \fImin\fR has been padded internally with
-.QW a0 .
-There is no constraint to a maximum.
-.RE
+requirements, and 0 otherwise. \fIrequirements\fR are defined in the \fBREQUIREMENT\fR section below.
+.\" METHOD: prefer
 .TP
 \fBpackage prefer \fR?\fBlatest\fR|\fBstable\fR?
+.
 With no arguments, the commands returns either
 .QW latest
 or
@@ -271,8 +239,8 @@ error.
 .PP
 When an interpreter is created, its initial selection mode value is set to
 .QW stable
-unless the environment variable \fBTCL_PKG_PREFER_LATEST\fR
-is set.  If that environment variable is defined (with any value) then
+unless the environment variable \fBTCL_PKG_PREFER_LATEST\fR is set
+(to any value) or the Tcl package itself is unstable. Otherwise
 the initial (and permanent) selection mode value is set to
 .QW latest .
 .RE
@@ -327,9 +295,71 @@ and \fBpackage provide\fR commands in scripts, and use the procedure
 Once you have done this, packages will be loaded automatically
 in response to \fBpackage require\fR commands.
 See the documentation for \fBpkg_mkIndex\fR for details.
+.SH "REQUIREMENT"
+.PP
+A \fIrequirement\fR string checks, if a compatible version number of a package is present.
+Most commands accept a list of requirement strings where the highest suitable version is matched.
+.PP
+Each \fIrequirement\fR is allowed to have any of the forms:
+.RS
+.IP \fImin\fR
+This form is called
+.QW min-bounded .
+.IP \fImin\fB\-\fR
+This form is called
+.QW min-unbound .
+.IP \fImin\fB\-\fImax\fR
+This form is called
+.QW bounded .
+.PP
+where
+.QW \fImin\fR
+and
+.QW \fImax\fR
+are valid version numbers. The legacy syntax is
+a special case of the extended syntax, keeping backward
+compatibility. Regarding satisfaction the rules are:
+.IP [1]
+The \fIversion\fR has to pass at least one of the listed
+\fIrequirement\fRs to be satisfactory.
+.IP [2]
+A version satisfies a
+.QW bounded
+requirement when
+.RS
+.IP [a]
+For \fImin\fR equal to the \fImax\fR if, and only if the \fIversion\fR
+is equal to the \fImin\fR.
+.IP [b]
+Otherwise if, and only if the \fIversion\fR is greater than or equal
+to the \fImin\fR, and less than the \fImax\fR, where both \fImin\fR
+and \fImax\fR have been padded internally with
+.QW a0 .
+Note that while the comparison to \fImin\fR is inclusive, the
+comparison to \fImax\fR is exclusive.
+.RE
+.IP [3]
+A
+.QW min-bounded
+requirement is a
+.QW bounded
+requirement in disguise,
+with the \fImax\fR part implicitly specified as the next higher major
+version number of the \fImin\fR part. A version satisfies it per the
+rules above.
+.IP [4]
+A \fIversion\fR satisfies a
+.QW min-unbound
+requirement if, and only if it is greater than or equal to the
+\fImin\fR, where the \fImin\fR has been padded internally with
+.QW a0 .
+There is no constraint to a maximum.
+.RE
 .SH EXAMPLES
+.PP
 To state that a Tcl script requires the Tk and http packages, put this
 at the top of the script:
+.PP
 .CS
 \fBpackage require\fR Tk
 \fBpackage require\fR http
@@ -338,15 +368,19 @@ at the top of the script:
 To test to see if the Snack package is available and load if it is
 (often useful for optional enhancements to programs where the loss of
 the functionality is not critical) do this:
+.PP
 .CS
 if {[catch {\fBpackage require\fR Snack}]} {
-   # Error thrown - package not found.
-   # Set up a dummy interface to work around the absence
+    # Error thrown - package not found.
+    # Set up a dummy interface to work around the absence
 } else {
-   # We have the package, configure the app to use it
+    # We have the package, configure the app to use it
 }
 .CE
 .SH "SEE ALSO"
 msgcat(n), packagens(n), pkgMkIndex(n)
 .SH KEYWORDS
 package, version
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/packagens.n b/doc/packagens.n
index 1152314..42a0686 100644
--- a/doc/packagens.n
+++ b/doc/packagens.n
@@ -1,7 +1,7 @@
 '\"
-'\" Copyright (c) 1998-2000 by Scriptics Corporation.
+'\" Copyright (c) 1998-2000 Scriptics Corporation.
 '\" All rights reserved.
-'\" 
+'\"
 .TH pkg::create n 8.3 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -9,35 +9,41 @@
 .SH NAME
 pkg::create \- Construct an appropriate 'package ifneeded' command for a given package specification
 .SH SYNOPSIS
-\fB::pkg::create \fI\-name packageName\fR \fI\-version packageVersion\fR ?\fI\-load filespec\fR? ... ?\fI\-source filespec\fR? ...
+\fB::pkg::create\fR \fB\-name \fIpackageName \fB\-version \fIpackageVersion\fR ?\fB\-load \fIfilespec\fR? ... ?\fB\-source \fIfilespec\fR? ...
 .BE
-
 .SH DESCRIPTION
 .PP
 \fB::pkg::create\fR is a utility procedure that is part of the standard Tcl
 library.  It is used to create an appropriate \fBpackage ifneeded\fR
 command for a given package specification.  It can be used to construct a
 \fBpkgIndex.tcl\fR file for use with the \fBpackage\fR mechanism.
-
 .SH OPTIONS
 The parameters supported are:
+.\" OPTION: -name
 .TP
-\fB\-name\fR\0\fIpackageName\fR
+\fB\-name \fIpackageName\fR
+.
 This parameter specifies the name of the package.  It is required.
+.\" OPTION: -version
 .TP
-\fB\-version\fR\0\fIpackageVersion\fR
+\fB\-version \fIpackageVersion\fR
+.
 This parameter specifies the version of the package.  It is required.
+.\" OPTION: -load
 .TP
-\fB\-load\fR\0\fIfilespec\fR
-This parameter specifies a binary library that must be loaded with the
+\fB\-load \fIfilespec\fR
+.
+This parameter specifies a library that must be loaded with the
 \fBload\fR command.  \fIfilespec\fR is a list with two elements.  The
 first element is the name of the file to load.  The second, optional
 element is a list of commands supplied by loading that file.  If the
 list of procedures is empty or omitted, \fB::pkg::create\fR will
 set up the library for direct loading (see \fBpkg_mkIndex\fR).  Any
 number of \fB\-load\fR parameters may be specified.
+.\" OPTION: -source
 .TP
-\fB\-source\fR\0\fIfilespec\fR
+\fB\-source \fIfilespec\fR
+.
 This parameter is similar to the \fB\-load\fR parameter, except that it
 specifies a Tcl library that must be loaded with the
 \fBsource\fR command.  Any number of \fB\-source\fR parameters may be
@@ -48,3 +54,7 @@ At least one \fB\-load\fR or \fB\-source\fR parameter must be given.
 package(n)
 .SH KEYWORDS
 auto-load, index, package, version
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/pid.n b/doc/pid.n
index a4df2f3..02d1cbe 100644
--- a/doc/pid.n
+++ b/doc/pid.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH pid n 7.0 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,7 +14,6 @@ pid \- Retrieve process identifiers
 .SH SYNOPSIS
 \fBpid \fR?\fIfileId\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 If the \fIfileId\fR argument is given then it should normally
@@ -40,9 +39,11 @@ puts [string repeat - 70]
 puts [read $pipeline]
 close $pipeline
 .CE
-
 .SH "SEE ALSO"
 exec(n), open(n)
-
 .SH KEYWORDS
 file, pipeline, process identifier
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/pkgMkIndex.n b/doc/pkgMkIndex.n
index d5cab7b..3d10360 100644
--- a/doc/pkgMkIndex.n
+++ b/doc/pkgMkIndex.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH pkg_mkIndex n 8.3 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,7 +12,7 @@
 pkg_mkIndex \- Build an index for automatic loading of packages
 .SH SYNOPSIS
 .nf
-\fBpkg_mkIndex ?\fI\-direct\fR?  ?\fI\-lazy\fR?  ?\fI\-load pkgPat\fR? ?\fI\-verbose\fR? \fIdir\fR ?\fIpattern pattern ...\fR?
+\fBpkg_mkIndex\fR ?\fIoptions...\fR? \fIdir\fR ?\fIpattern pattern ...\fR?
 .fi
 .BE
 .SH DESCRIPTION
@@ -42,12 +42,12 @@ The default pattern is \fB*.tcl\fR and \fB*.[info sharedlibextension]\fR.
 \fBPkg_mkIndex\fR will create a file \fBpkgIndex.tcl\fR in \fIdir\fR
 with package information about all the files given by the \fIpattern\fR
 arguments.
-It does this by loading each file into a slave
+It does this by loading each file into a child
 interpreter and seeing what packages
 and new commands appear (this is why it is essential to have
 \fBpackage provide\fR commands or \fBTcl_PkgProvide\fR calls
 in the files, as described above).
-If you have a package split among scripts and binary files, 
+If you have a package split among scripts and binary files,
 or if you have dependencies among files,
 you may have to use the \fB\-load\fR option
 or adjust the order in which \fBpkg_mkIndex\fR processes
@@ -96,29 +96,39 @@ Different versions of a package may be loaded in different
 interpreters.
 .SH OPTIONS
 The optional switches are:
+.\" OPTION: -direct
 .TP 15
 \fB\-direct\fR
+.
 The generated index will implement direct loading of the package
 upon \fBpackage require\fR.  This is the default.
+.\" OPTION: -lazy
 .TP 15
 \fB\-lazy\fR
+.
 The generated index will manage to delay loading the package until the
 use of one of the commands provided by the package, instead of loading
 it immediately upon \fBpackage require\fR.  This is not compatible with
 the use of \fIauto_reset\fR, and therefore its use is discouraged.
+.\" OPTION: -load
 .TP 15
 \fB\-load \fIpkgPat\fR
-The index process will pre-load any packages that exist in the
-current interpreter and match \fIpkgPat\fR into the slave interpreter used to
+.
+The index process will preload any packages that exist in the
+current interpreter and match \fIpkgPat\fR into the child interpreter used to
 generate the index.  The pattern match uses string match rules, but without
 making case distinctions.
-See COMPLEX CASES below.
+See \fBCOMPLEX CASES\fR below.
+.\" OPTION: -verbose
 .TP 15
 \fB\-verbose\fR
+.
 Generate output during the indexing process.  Output is via
 the \fBtclLog\fR procedure, which by default prints to stderr.
+.\" OPTION: --
 .TP 15
 \fB\-\-\fR
+.
 End of the flags, in case \fIdir\fR begins with a dash.
 .SH "PACKAGES AND THE AUTO-LOADER"
 .PP
@@ -132,7 +142,7 @@ version control:  several versions of a package can be made available
 in the index files, with different applications using different
 versions based on \fBpackage require\fR commands.
 In contrast, \fBauto_mkindex\fR does not understand versions so
-it can only handle a single version of each package. 
+it can only handle a single version of each package.
 It is probably not a good idea to index a given package with both
 \fBpkg_mkIndex\fR and \fBauto_mkindex\fR.
 If you use \fBpkg_mkIndex\fR to index a package, its commands cannot
@@ -153,7 +163,7 @@ commands for each version of each available package;  these commands
 invoke \fBpackage provide\fR commands to announce the
 availability of the package, and they setup auto-loader
 information to load the files of the package.
-If the \fI\-lazy\fR flag was provided when the \fBpkgIndex.tcl\fR
+If the \fB\-lazy\fR flag was provided when the \fBpkgIndex.tcl\fR
 was generated,
 a given file of a given version of a given package is not
 actually loaded until the first time one of its commands
@@ -168,7 +178,7 @@ commands or those which require special initialization, might select
 that their package files be loaded immediately upon \fBpackage require\fR
 instead of delaying the actual loading to the first use of one of the
 package's command. This is the default mode when generating the package
-index.  It can be overridden by specifying the \fI\-lazy\fR argument.
+index.  It can be overridden by specifying the \fB\-lazy\fR argument.
 .SH "COMPLEX CASES"
 Most complex cases of dependencies among scripts
 and binary files, and packages being split among scripts and
@@ -228,3 +238,6 @@ the binary file may mask the package defined by the scripts.
 package(n)
 .SH KEYWORDS
 auto-load, index, package, version
+'\"Local Variables:
+'\"mode: nroff
+'\"End:
diff --git a/doc/platform.n b/doc/platform.n
index 7233215..3ff0568 100644
--- a/doc/platform.n
+++ b/doc/platform.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH "platform" n 1.0.4 platform "Tcl Bundled Packages"
 .so man.macros
 .BS
@@ -12,8 +12,8 @@
 platform \- System identification support code and utilities
 .SH SYNOPSIS
 .nf
-\fBpackage require platform ?1.0.4?\fR
-.sp
+\fBpackage require platform\fR ?\fB1.0.10\fR?
+
 \fBplatform::generic\fR
 \fBplatform::identify\fR
 \fBplatform::patterns \fIidentifier\fR
@@ -43,24 +43,47 @@ establishes a standard naming convention for architectures running Tcl
 and makes it more convenient for developers to identify the current
 architecture a Tcl program is running on.
 .SH COMMANDS
+.\" COMMAND: identify
 .TP
 \fBplatform::identify\fR
+.
 This command returns an identifier describing the platform the Tcl
 core is running on. The returned identifier has the general format
 \fIOS\fR-\fICPU\fR. The \fIOS\fR part of the identifier may contain
 details like kernel version, libc version, etc., and this information
 may contain dashes as well.  The \fICPU\fR part will not contain
 dashes, making the preceding dash the last dash in the result.
+.\" COMMAND: generic
 .TP
 \fBplatform::generic\fR
+.
 This command returns a simplified identifier describing the platform
 the Tcl core is running on. In contrast to \fBplatform::identify\fR it
 leaves out details like kernel version, libc version, etc. The
 returned identifier has the general format \fIOS\fR-\fICPU\fR.
+.\" COMMAND: patterns
 .TP
-\fBplatform::patterns 	\fIidentifier\fR
+\fBplatform::patterns \fIidentifier\fR
+.
 This command takes an identifier as returned by
 \fBplatform::identify\fR and returns a list of identifiers describing
 compatible architectures.
+.SH EXAMPLE
+.PP
+This can be used to allow an application to be shipped with multiple builds of
+a shared library, so that the same package works on many versions of an
+operating system. For example:
+.PP
+.CS
+\fBpackage require platform\fR
+# Assume that app script is .../theapp/bin/theapp.tcl
+set binDir [file dirname [file normalize [info script]]]
+set libDir [file join $binDir .. lib]
+set platLibDir [file join $libDir [\fBplatform::identify\fR]]
+load [file join $platLibDir support[info sharedlibextension]]
+.CE
 .SH KEYWORDS
 operating system, cpu architecture, platform, architecture
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/platform_shell.n b/doc/platform_shell.n
index 64a2e46..22c2ca4 100644
--- a/doc/platform_shell.n
+++ b/doc/platform_shell.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH "platform::shell" n 1.1.4 platform::shell "Tcl Bundled Packages"
 .so man.macros
 .BS
@@ -12,8 +12,8 @@
 platform::shell \- System identification support code and utilities
 .SH SYNOPSIS
 .nf
-\fBpackage require platform::shell ?1.1.4?\fR
-.sp
+\fBpackage require platform::shell\fR ?\fB1.1.4\fR?
+
 \fBplatform::shell::generic \fIshell\fR
 \fBplatform::shell::identify \fIshell\fR
 \fBplatform::shell::platform \fIshell\fR
@@ -41,17 +41,27 @@ the architecture of the shell which will actually run the installed
 packages, versus the architecture of the shell running the repository
 software.
 .SH COMMANDS
+.\" COMMAND: identify
 .TP
 \fBplatform::shell::identify \fIshell\fR
+.
 This command does the same identification as \fBplatform::identify\fR,
 for the specified Tcl shell, in contrast to the running shell.
+.\" COMMAND: generic
 .TP
 \fBplatform::shell::generic \fIshell\fR
+.
 This command does the same identification as \fBplatform::generic\fR,
 for the specified Tcl shell, in contrast to the running shell.
+.\" COMMAND: platform
 .TP
 \fBplatform::shell::platform \fIshell\fR
+.
 This command returns the contents of \fBtcl_platform(platform)\fR for
 the specified Tcl shell.
 .SH KEYWORDS
 operating system, cpu architecture, platform, architecture
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/prefix.n b/doc/prefix.n
new file mode 100644
index 0000000..16049f3
--- /dev/null
+++ b/doc/prefix.n
@@ -0,0 +1,122 @@
+'\"
+'\" Copyright (c) 2008 Peter Spjuth <pspjuth@users.sourceforge.net>
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH prefix n 8.6 Tcl "Tcl Built-In Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+tcl::prefix \- facilities for prefix matching
+.SH SYNOPSIS
+.nf
+\fB::tcl::prefix all\fI table string\fR
+\fB::tcl::prefix longest\fI table string\fR
+\fB::tcl::prefix match\fR ?\fIoption ...\fR? \fItable string\fR
+.fi
+.BE
+.SH DESCRIPTION
+.PP
+This document describes commands looking up a prefix in a list of strings.
+The following commands are supported:
+.\" METHOD: all
+.TP
+\fB::tcl::prefix all\fI table string\fR
+.
+Returns a list of all elements in \fItable\fR that begin with the prefix
+\fIstring\fR.
+.\" METHOD: longest
+.TP
+\fB::tcl::prefix longest\fI table string\fR
+.
+Returns the longest common prefix of all elements in \fItable\fR that
+begin with the prefix \fIstring\fR.
+.\" METHOD: match
+.TP
+\fB::tcl::prefix match\fR ?\fIoption ...\fR? \fItable string\fR
+.
+If \fIstring\fR equals one element in \fItable\fR or is a prefix to exactly
+one element, the matched element is returned. If not, the result depends
+on the \fB\-error\fR option. (It is recommended that the \fItable\fR be sorted
+before use with this subcommand, so that the list of matches presented in the
+error message also becomes sorted, though this is not strictly necessary for
+the operation of this subcommand itself.) The following options are supported:
+.RS
+.\" OPTION: -exact
+.TP
+\fB\-exact\fR
+.
+Accept only exact matches.
+.\" OPTION: -message
+.TP
+\fB\-message\0\fIstring\fR
+.
+Use \fIstring\fR in the error message at a mismatch. Default is
+.QW option .
+.\" OPTION: -error
+.TP
+\fB\-error\0\fIoptions\fR
+.
+The \fIoptions\fR are used when no match is found. If \fIoptions\fR is empty,
+no error is generated and an empty string is returned. Otherwise the
+\fIoptions\fR are used as \fBreturn\fR options when generating the error
+message. The default corresponds to setting
+.QW "\-level 0" .
+Example: If
+.QW "\fB\-error\fR {\-errorcode MyError \-level 1}"
+is used, an error would be generated as:
+.RS
+.PP
+.CS
+return -errorcode MyError -level 1 -code error \e
+       "ambiguous option ..."
+.CE
+.RE
+.RE
+.SH "EXAMPLES"
+.PP
+Basic use:
+.PP
+.CS
+namespace import ::tcl::prefix
+\fBprefix match\fR {apa bepa cepa} apa
+     \fI\(-> apa\fR
+\fBprefix match\fR {apa bepa cepa} a
+     \fI\(-> apa\fR
+\fBprefix match\fR -exact {apa bepa cepa} a
+     \fI\(-> bad option "a": must be apa, bepa, or cepa\fR
+\fBprefix match\fR -message "switch" {apa ada bepa cepa} a
+     \fI\(-> ambiguous switch "a": must be apa, ada, bepa, or cepa\fR
+\fBprefix longest\fR {fblocked fconfigure fcopy file fileevent flush} fc
+     \fI\(-> fco\fR
+\fBprefix all\fR {fblocked fconfigure fcopy file fileevent flush} fc
+     \fI\(-> fconfigure fcopy\fR
+.CE
+.PP
+Simplifying option matching:
+.PP
+.CS
+array set opts {-apa 1 -bepa "" -cepa 0}
+foreach {arg val} $args {
+    set opts([\fBprefix match\fR {-apa -bepa -cepa} $arg]) $val
+}
+.CE
+.PP
+Creating a \fBswitch\fR that supports prefixes:
+.PP
+.CS
+switch [\fBprefix match\fR {apa bepa cepa} $arg] {
+    apa  { }
+    bepa { }
+    cepa { }
+}
+.CE
+.SH "SEE ALSO"
+lsearch(n), namespace(n), string(n), Tcl_GetIndexFromObj(3)
+.SH "KEYWORDS"
+prefix, table lookup
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/proc.n b/doc/proc.n
index 0f8cc04..d4de9b0 100644
--- a/doc/proc.n
+++ b/doc/proc.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH proc n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,7 +14,6 @@ proc \- Create a Tcl procedure
 .SH SYNOPSIS
 \fBproc \fIname args body\fR
 .BE
-
 .SH DESCRIPTION
 .PP
 The \fBproc\fR command creates a new Tcl procedure named
@@ -33,10 +32,11 @@ elements specifies
 one argument.  Each argument specifier is also a list with either
 one or two fields.  If there is only a single field in the specifier
 then it is the name of the argument; if there are two fields, then
-the first is the argument name and the second is its default value. 
+the first is the argument name and the second is its default value.
 Arguments with default values that are followed by non-defaulted
-arguments become required arguments.  In 8.6 this will be considered an 
-error. 
+arguments become required arguments; enough actual arguments must be
+supplied to allow all arguments up to and including the last required
+formal argument.
 .PP
 When \fIname\fR is invoked a local variable
 will be created for each of the formal arguments to the procedure; its
@@ -47,24 +47,33 @@ Arguments with default values need not be
 specified in a procedure invocation.  However, there must be enough
 actual arguments for all the
 formal arguments that do not have defaults, and there must not be any extra
-actual arguments.  
+actual arguments.
 Arguments with default values that are followed by non-defaulted
-arguments become required arguments (in 8.6 it will be considered an 
-error).
+arguments become de-facto required arguments, though this may change
+in a future version of Tcl; portable code should ensure that all
+optional arguments come after all required arguments.
+.PP
 There is one special case to permit procedures with
 variable numbers of arguments.  If the last formal argument has the name
-\fBargs\fR, then a call to the procedure may contain more actual arguments
-than the procedure has formals.  In this case, all of the actual arguments
-starting at the one that would be assigned to \fBargs\fR are combined into
-a list (as if the \fBlist\fR command had been used); this combined value
-is assigned to the local variable \fBargs\fR.
+.QW \fBargs\fR ,
+then a call to the procedure may contain more actual arguments
+than the procedure has formal arguments.  In this case, all of the actual
+arguments starting at the one that would be assigned to \fBargs\fR are
+combined into a list (as if the \fBlist\fR command had been used); this
+combined value is assigned to the local variable \fBargs\fR.
 .PP
 When \fIbody\fR is being executed, variable names normally refer to
 local variables, which are created automatically when referenced and
 deleted when the procedure returns.  One local variable is automatically
 created for each of the procedure's arguments.
-Other variables can only be accessed by invoking one of the \fBglobal\fR, 
+Other variables can only be accessed by invoking one of the \fBglobal\fR,
 \fBvariable\fR, \fBupvar\fR or \fBnamespace upvar\fR commands.
+The current namespace when \fIbody\fR is executed will be the
+namespace that the procedure's name exists in, which will be the
+namespace that it was created in unless it has been changed with
+\fBrename\fR.
+'\" We may change this! It makes [variable] unstable when renamed and is
+'\" frankly pretty crazy, but doing it right is harder than it looks.
 .PP
 The \fBproc\fR command returns an empty string.  When a procedure is
 invoked, the procedure's return value is the value specified in a
@@ -74,28 +83,46 @@ executed in the procedure's body.
 If an error occurs while executing the procedure
 body, then the procedure-as-a-whole will return that same error.
 .SH EXAMPLES
+.PP
+This is a procedure that takes two arguments and prints both their sum
+and their product. It also returns the string
+.QW OK
+to the caller as an explicit result.
+.PP
+.CS
+\fBproc\fR printSumProduct {x y} {
+    set sum [expr {$x + $y}]
+    set prod [expr {$x * $y}]
+    puts "sum is $sum, product is $prod"
+    return "OK"
+}
+.CE
+.PP
 This is a procedure that accepts arbitrarily many arguments and prints
 them out, one by one.
+.PP
 .CS
 \fBproc\fR printArguments args {
-   foreach arg $args {
-      puts $arg
-   }
+    foreach arg $args {
+        puts $arg
+    }
 }
 .CE
 .PP
 This procedure is a bit like the \fBincr\fR command, except it
 multiplies the contents of the named variable by the value, which
 defaults to \fB2\fR:
+.PP
 .CS
 \fBproc\fR mult {varName {multiplier 2}} {
-   upvar 1 $varName var
-   set var [expr {$var * $multiplier}]
+    upvar 1 $varName var
+    set var [expr {$var * $multiplier}]
 }
 .CE
-
 .SH "SEE ALSO"
 info(n), unknown(n)
-
 .SH KEYWORDS
 argument, procedure
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/process.n b/doc/process.n
new file mode 100644
index 0000000..b34deb2
--- /dev/null
+++ b/doc/process.n
@@ -0,0 +1,158 @@
+'\"
+'\" Copyright (c) 2017 Frederic Bonnet.
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH process n 9.0 Tcl "Tcl Built-In Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+tcl::process \- Subprocess management
+.SH SYNOPSIS
+\fB::tcl::process \fIoption \fR?\fIarg arg ...\fR?
+.BE
+.SH DESCRIPTION
+.PP
+This command provides a way to manage subprocesses created by the \fBopen\fR
+and \fBexec\fR commands, as identified by the process identifiers (PIDs) of
+those subprocesses. The legal \fIoptions\fR (which may be abbreviated) are:
+.\" METHOD: autopurge
+.TP
+\fB::tcl::process autopurge\fR ?\fIflag\fR?
+.
+Automatic purge facility. If \fIflag\fR is specified as a boolean value then
+it activates or deactivate autopurge. In all cases it returns the current
+status as a boolean value. When autopurge is active,
+\fBTcl_ReapDetachedProcs\fR is called each time the \fBexec\fR command is
+executed or a pipe channel created by \fBopen\fR is closed. When autopurge is
+inactive, \fB::tcl::process\fR purge must be called explicitly. By default
+autopurge is active.
+.\" METHOD: list
+.TP
+\fB::tcl::process list\fR
+.
+Returns the list of subprocess PIDs. This includes all currently executing
+subprocesses and all terminated subprocesses that have not yet had their
+corresponding process table entries purged.
+.\" METHOD: purge
+.TP
+\fB::tcl::process purge\fR ?\fIpids\fR?
+.
+Cleans up all data associated with terminated subprocesses. If \fIpids\fR is
+specified as a list of PIDs then the command only cleans up data for the matching
+subprocesses if they exist. If a process listed is
+still active, this command does nothing to that process.
+Any PID that does not correspond to a subprocess is ignored.
+.\" METHOD: status
+.TP
+\fB::tcl::process status\fR ?\fIswitches\fR? ?\fIpids\fR?
+.
+Returns a dictionary mapping subprocess PIDs to their respective status. If
+\fIpids\fR is specified as a list of PIDs then the command only returns the
+status of the matching subprocesses if they exist.
+Any PID that does not correspond to a subprocess is ignored.
+For active processes, the status is an empty value. For terminated
+processes, the status is a list with the following format:
+.QW "\fB{\fIcode\fR ?\fImsg errorCode\fR?\fB}\fR" ,
+where:
+.RS
+.TP
+\fIcode\fR
+.
+is a standard Tcl return code, i.e., \fB0\fR for TCL_OK and \fB1\fR
+for TCL_ERROR,
+.TP
+\fImsg\fR
+.
+is the human-readable error message,
+.TP
+\fIerrorCode\fR
+.
+uses the same format as the \fBerrorCode\fR global variable
+.PP
+Note that \fBmsg\fR and \fBerrorCode\fR are only present for abnormally
+terminated processes (i.e. those where the \fIcode\fR is nonzero). Under the
+hood this command calls \fBTcl_WaitPid\fR with the \fBWNOHANG\fR flag set for
+non-blocking behavior, unless the \fB\-wait\fR switch is set (see below).
+.PP
+Additionally, \fB::tcl::process status\fR accepts the following switches:
+.\" OPTION: -wait
+.TP
+\fB\-wait\fR
+.
+By default the command returns immediately (the underlying \fBTcl_WaitPid\fR is
+called with the \fBWNOHANG\fR flag set) unless this switch is set. If \fIpids\fR
+is specified as a list of PIDs then the command waits until the status of the
+matching subprocesses are available. If \fIpids\fR was not specified, this
+command will wait for all known subprocesses.
+.\" OPTION: --
+.TP
+\fB\-\|\-\fR
+.
+Marks the end of switches.  The argument following this one will
+be treated as the first \fIarg\fR even if it starts with a \fB\-\fR.
+.RE
+.SH "EXAMPLES"
+.PP
+These show the use of \fB::tcl::process\fR. Some of the results from
+\fB::tcl::process status\fR are split over multiple lines for readability.
+.PP
+.CS
+\fB::tcl::process autopurge\fR
+     \fI\(-> true\fR
+\fB::tcl::process autopurge\fR false
+     \fI\(-> false\fR
+
+set pid1 [exec command1 a b c | command2 d e f &]
+     \fI\(-> 123 456\fR
+set chan [open "|command1 a b c | command2 d e f"]
+     \fI\(-> file123\fR
+set pid2 [pid $chan]
+     \fI\(-> 789 1011\fR
+
+\fB::tcl::process list\fR
+     \fI\(-> 123 456 789 1011\fR
+
+\fB::tcl::process status\fR
+     \fI\(-> 123 0
+       456 {1 "child killed: write on pipe with no readers" {
+         CHILDKILLED 456 SIGPIPE "write on pipe with no readers"}}
+       789 {1 "child suspended: background tty read" {
+         CHILDSUSP 789 SIGTTIN "background tty read"}}
+       1011 {}\fR
+
+\fB::tcl::process status\fR 123
+     \fI\(-> 123 0\fR
+
+\fB::tcl::process status\fR 1011
+     \fI\(-> 1011 {}\fR
+
+\fB::tcl::process status\fR -wait
+     \fI\(-> 123 0
+       456 {1 "child killed: write on pipe with no readers" {
+         CHILDKILLED 456 SIGPIPE "write on pipe with no readers"}}
+       789 {1 "child suspended: background tty read" {
+         CHILDSUSP 789 SIGTTIN "background tty read"}}
+       1011 {1 "child process exited abnormally" {
+         CHILDSTATUS 1011 -1}}\fR
+
+\fB::tcl::process status\fR 1011
+     \fI\(-> 1011 {1 "child process exited abnormally" {
+         CHILDSTATUS 1011 -1}}\fR
+
+\fB::tcl::process purge\fR
+exec command1 1 2 3 &
+     \fI\(-> 1213\fR
+\fB::tcl::process list\fR
+     \fI\(-> 1213\fR
+.CE
+.SH "SEE ALSO"
+exec(n), open(n), pid(n),
+Tcl_DetachPids(3), Tcl_WaitPid(3), Tcl_ReapDetachedProcs(3)
+.SH "KEYWORDS"
+background, child, detach, process, wait
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/puts.n b/doc/puts.n
index 7dbfa5e..100bec8 100644
--- a/doc/puts.n
+++ b/doc/puts.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH puts n 7.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,85 +12,15 @@
 .SH NAME
 puts \- Write to a channel
 .SH SYNOPSIS
-\fBputs \fR?\fB\-nonewline\fR? ?\fIchannelId\fR? \fIstring\fR
+\fBputs \fR?\fB\-nonewline\fR? ?\fIchannel\fR? \fIstring\fR
 .BE
-
 .SH DESCRIPTION
 .PP
-Writes the characters given by \fIstring\fR to the channel given
-by \fIchannelId\fR.
-.PP
-\fIChannelId\fR must be an identifier for an open channel such as a
-Tcl standard channel (\fBstdout\fR or \fBstderr\fR), the return
-value from an invocation of \fBopen\fR or \fBsocket\fR, or the result
-of a channel creation command provided by a Tcl extension. The channel
-must have been opened for output.
-.PP
-If no \fIchannelId\fR is specified then it defaults to
-\fBstdout\fR. \fBPuts\fR normally outputs a newline character after
-\fIstring\fR, but this feature may be suppressed by specifying the
-\fB\-nonewline\fR switch.
-.PP
-Newline characters in the output are translated by \fBputs\fR to
-platform-specific end-of-line sequences according to the current
-value of the \fB\-translation\fR option for the channel (for example,
-on PCs newlines are normally replaced with carriage-return-linefeed
-sequences.
-See the \fBfconfigure\fR manual entry for a discussion on ways in
-which \fBfconfigure\fR will alter output.
-.PP
-Tcl buffers output internally, so characters written with \fBputs\fR
-may not appear immediately on the output file or device;  Tcl will
-normally delay output until the buffer is full or the channel is
-closed.
-You can force output to appear immediately with the \fBflush\fR
-command.
-.PP
-When the output buffer fills up, the \fBputs\fR command will normally
-block until all the buffered data has been accepted for output by the
-operating system.
-If \fIchannelId\fR is in nonblocking mode then the \fBputs\fR command
-will not block even if the operating system cannot accept the data.
-Instead, Tcl continues to buffer the data and writes it in the
-background as fast as the underlying file or device can accept it.
-The application must use the Tcl event loop for nonblocking output
-to work;  otherwise Tcl never finds out that the file or device is
-ready for more output data.
-It is possible for an arbitrarily large amount of data to be
-buffered for a channel in nonblocking mode, which could consume a
-large amount of memory.
-To avoid wasting memory, nonblocking I/O should normally
-be used in an event-driven fashion with the \fBfileevent\fR command
-(do not invoke \fBputs\fR unless you have recently been notified
-via a file event that the channel is ready for more output data).
-.SH EXAMPLES
-Write a short message to the console (or wherever \fBstdout\fR is
-directed):
-.CS
-\fBputs\fR "Hello, World!"
-.CE
-.PP
-Print a message in several parts:
-.CS
-\fBputs\fR -nonewline "Hello, "
-\fBputs\fR "World!"
-.CE
-.PP
-Print a message to the standard error channel:
-.CS
-\fBputs\fR stderr "Hello, World!"
-.CE
-.PP
-Append a log message to a file:
-.CS
-set chan [open my.log a]
-set timestamp [clock format [clock seconds]]
-\fBputs\fR $chan "$timestamp - Hello, World!"
-close $chan
-.CE
-
+The \fBputs\fR command has been superceded by the \fBchan puts\fR
+command which supports the same syntax and options.
 .SH "SEE ALSO"
-file(n), fileevent(n), Tcl_StandardChannels(3)
-
-.SH KEYWORDS
-channel, newline, output, write
+chan(n)
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/pwd.n b/doc/pwd.n
index 423a263..e96cae5 100644
--- a/doc/pwd.n
+++ b/doc/pwd.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH pwd n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,17 +14,18 @@ pwd \- Return the absolute path of the current working directory
 .SH SYNOPSIS
 \fBpwd\fR
 .BE
-
 .SH DESCRIPTION
 .PP
 Returns the absolute path name of the current working directory.
 .SH EXAMPLE
+.PP
 Sometimes it is useful to change to a known directory when running
 some external command using \fBexec\fR, but it is important to keep
 the application usually running in the directory that it was started
 in (unless the user specifies otherwise) since that minimizes user
 confusion. The way to do this is to save the current directory while
 the external command is being run:
+.PP
 .CS
 set tarFile [file normalize somefile.tar]
 set savedDir [\fBpwd\fR]
@@ -34,6 +35,9 @@ cd $savedDir
 .CE
 .SH "SEE ALSO"
 file(n), cd(n), glob(n), filename(n)
-
 .SH KEYWORDS
 working directory
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/re_syntax.n b/doc/re_syntax.n
index 446f79f..b214349 100644
--- a/doc/re_syntax.n
+++ b/doc/re_syntax.n
@@ -5,8 +5,8 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.TH re_syntax n "8.1" Tcl "Tcl Built-In Commands"
 .so man.macros
+.TH re_syntax n "8.1" Tcl "Tcl Built-In Commands"
 .BS
 .SH NAME
 re_syntax \- Syntax of Tcl regular expressions
@@ -55,29 +55,17 @@ Without a quantifier, it matches a single match for the atom.
 The quantifiers,
 and what a so-quantified atom matches, are:
 .RS 2
-.TP 6
-\fB*\fR
-.
+.IP \fB*\fR 6
 a sequence of 0 or more matches of the atom
-.TP
-\fB+\fR
-.
+.IP \fB+\fR 6
 a sequence of 1 or more matches of the atom
-.TP
-\fB?\fR
-.
+.IP \fB?\fR 6
 a sequence of 0 or 1 matches of the atom
-.TP
-\fB{\fIm\fB}\fR
-.
+.IP \fB{\fIm\fB}\fR 6
 a sequence of exactly \fIm\fR matches of the atom
-.TP
-\fB{\fIm\fB,}\fR
-.
+.IP \fB{\fIm\fB,}\fR 6
 a sequence of \fIm\fR or more matches of the atom
-.TP
-\fB{\fIm\fB,\fIn\fB}\fR
-.
+.IP \fB{\fIm\fB,\fIn\fB}\fR 6
 a sequence of \fIm\fR through \fIn\fR (inclusive) matches of the atom;
 \fIm\fR may not exceed \fIn\fR
 .TP
@@ -97,32 +85,32 @@ An atom is one of:
 .IP \fB(\fIre\fB)\fR 6
 matches a match for \fIre\fR (\fIre\fR is any regular expression) with
 the match noted for possible reporting
-.IP \fB(?:\fIre\fB)\fR
+.IP \fB(?:\fIre\fB)\fR 6
 as previous, but does no reporting (a
 .QW non-capturing
 set of parentheses)
-.IP \fB()\fR
+.IP \fB()\fR 6
 matches an empty string, noted for possible reporting
-.IP \fB(?:)\fR
+.IP \fB(?:)\fR 6
 matches an empty string, without reporting
-.IP \fB[\fIchars\fB]\fR
+.IP \fB[\fIchars\fB]\fR 6
 a \fIbracket expression\fR, matching any one of the \fIchars\fR (see
 \fBBRACKET EXPRESSIONS\fR for more detail)
-.IP \fB.\fR
+.IP \fB.\fR 6
 matches any single character
-.IP \fB\e\fIk\fR
+.IP \fB\e\fIk\fR 6
 matches the non-alphanumeric character \fIk\fR
 taken as an ordinary character, e.g. \fB\e\e\fR matches a backslash
 character
-.IP \fB\e\fIc\fR
+.IP \fB\e\fIc\fR 6
 where \fIc\fR is alphanumeric (possibly followed by other characters),
 an \fIescape\fR (AREs only), see \fBESCAPES\fR below
-.IP \fB{\fR
+.IP \fB{\fR 6
 when followed by a character other than a digit, matches the
 left-brace character
 .QW \fB{\fR ;
 when followed by a digit, it is the beginning of a \fIbound\fR (see above)
-.IP \fIx\fR
+.IP \fIx\fR 6
 where \fIx\fR is a single character with no other significance,
 matches that character.
 .RE
@@ -236,7 +224,8 @@ A character producing white space in displayed text.
 .IP \fBpunct\fR 8
 A punctuation character.
 .IP \fBgraph\fR 8
-A character with a visible representation (includes both alnum and punct).
+A character with a visible representation (includes both \fBalnum\fR
+and \fBpunct\fR).
 .IP \fBcntrl\fR 8
 A control character.
 .PP
@@ -305,12 +294,12 @@ treatment is as if the enclosing delimiters were
 .QW \fB[.\fR \&
 and
 .QW \fB.]\fR .)
-For example, if \fBo\fR and \fB\N'244'\fR are the members of an
+For example, if \fBo\fR and \fB\(^o\fR are the members of an
 equivalence class, then
 .QW \fB[[=o=]]\fR ,
-.QW \fB[[=\N'244'=]]\fR ,
+.QW \fB[[=\(^o=]]\fR ,
 and
-.QW \fB[o\N'244']\fR \&
+.QW \fB[o\(^o]\fR \&
 are all synonymous. An equivalence class may not be an endpoint of a range.
 .RS
 .PP
@@ -331,82 +320,53 @@ is the one actual incompatibility between EREs and AREs.)
 Character-entry escapes (AREs only) exist to make it easier to specify
 non-printing and otherwise inconvenient characters in REs:
 .RS 2
-.TP 5
-\fB\ea\fR
-.
+.IP \fB\ea\fR 5
 alert (bell) character, as in C
-.TP
-\fB\eb\fR
-.
+.IP \fB\eb\fR 5
 backspace, as in C
-.TP
-\fB\eB\fR
-.
+.IP \fB\eB\fR 5
 synonym for \fB\e\fR to help reduce backslash doubling in some
 applications where there are multiple levels of backslash processing
-.TP
-\fB\ec\fIX\fR
-.
+.IP \fB\ec\fIX\fR 5
 (where \fIX\fR is any character) the character whose low-order 5 bits
 are the same as those of \fIX\fR, and whose other bits are all zero
-.TP
-\fB\ee\fR
-.
+.IP \fB\ee\fR 5
 the character whose collating-sequence name is
 .QW \fBESC\fR ,
 or failing that, the character with octal value 033
-.TP
-\fB\ef\fR
-.
+.IP \fB\ef\fR 5
 formfeed, as in C
-.TP
-\fB\en\fR
-.
+.IP \fB\en\fR 5
 newline, as in C
-.TP
-\fB\er\fR
-.
+.IP \fB\er\fR 5
 carriage return, as in C
-.TP
-\fB\et\fR
-.
+.IP \fB\et\fR 5
 horizontal tab, as in C
-.TP
-\fB\eu\fIwxyz\fR
-.
-(where \fIwxyz\fR is exactly four hexadecimal digits) the Unicode
+.IP \fB\eu\fIwxyz\fR 5
+(where \fIwxyz\fR is one up to four hexadecimal digits) the Unicode
 character \fBU+\fIwxyz\fR in the local byte ordering
-.TP
-\fB\eU\fIstuvwxyz\fR
-.
-(where \fIstuvwxyz\fR is exactly eight hexadecimal digits) reserved
-for a somewhat-hypothetical Unicode extension to 32 bits
-.TP
-\fB\ev\fR
-.
-vertical tab, as in C are all available.
-.TP
-\fB\ex\fIhhh\fR
-.
-(where \fIhhh\fR is any sequence of hexadecimal digits) the character
-whose hexadecimal value is \fB0x\fIhhh\fR (a single character no
-matter how many hexadecimal digits are used).
-.TP
-\fB\e0\fR
-.
+.IP \fB\eU\fIstuvwxyz\fR 5
+(where \fIstuvwxyz\fR is one up to eight hexadecimal digits) reserved
+for a Unicode extension up to 21 bits. The digits are parsed until the
+first non-hexadecimal character is encountered, the maximum of eight
+hexadecimal digits are reached, or an overflow would occur in the maximum
+value of \fBU+\fI10ffff\fR.
+.IP \fB\ev\fR 5
+vertical tab, as in C
+.IP \fB\ex\fIhh\fR 5
+(where \fIhh\fR is one or two hexadecimal digits) the character
+whose hexadecimal value is \fB0x\fIhh\fR.
+.IP \fB\e0\fR 5
 the character whose value is \fB0\fR
-.TP
-\fB\e\fIxy\fR
-.
+.IP \fB\e\fIxyz\fR 5
+(where \fIxyz\fR is exactly three octal digits, and is not a \fIback
+reference\fR (see below)) the character whose octal value is
+\fB0\fIxyz\fR. The first digit must be in the range 0-3, otherwise
+the two-digit form is assumed.
+.IP \fB\e\fIxy\fR 5
 (where \fIxy\fR is exactly two octal digits, and is not a \fIback
 reference\fR (see below)) the character whose octal value is
 \fB0\fIxy\fR
-.TP
-\fB\e\fIxyz\fR
-.
-(where \fIxyz\fR is exactly three octal digits, and is not a back
-reference (see below)) the character whose octal value is
-\fB0\fIxyz\fR
 .RE
 .PP
 Hexadecimal digits are
@@ -440,7 +400,8 @@ commonly-used character classes:
 .TP
 \fB\ew\fR
 .
-\fB[[:alnum:]_]\fR (note underscore)
+\fB[[:alnum:]_\eu203F\eu2040\eu2054\euFE33\euFE34\euFE4D\euFE4E\euFE4F\euFF3F]\fR
+(including punctuation connector characters)
 .TP
 \fB\eD\fR
 .
@@ -452,7 +413,8 @@ commonly-used character classes:
 .TP
 \fB\eW\fR
 .
-\fB[^[:alnum:]_]\fR (note underscore)
+\fB[^[:alnum:]_\eu203F\eu2040\eu2054\euFE33\euFE34\euFE4D\euFE4E\euFE4F\euFF3F]\fR
+(including punctuation connector characters)
 .RE
 .PP
 Within bracket expressions,
@@ -478,41 +440,25 @@ is illegal.)
 A constraint escape (AREs only) is a constraint, matching the empty
 string if specific conditions are met, written as an escape:
 .RS 2
-.TP 6
-\fB\eA\fR
-.
+.IP \fB\eA\fR 6
 matches only at the beginning of the string (see \fBMATCHING\fR,
 below, for how this differs from
 .QW \fB^\fR )
-.TP
-\fB\em\fR
-.
+.IP \fB\em\fR 6
 matches only at the beginning of a word
-.TP
-\fB\eM\fR
-.
+.IP \fB\eM\fR 6
 matches only at the end of a word
-.TP
-\fB\ey\fR
-.
+.IP \fB\ey\fR 6
 matches only at the beginning or end of a word
-.TP
-\fB\eY\fR
-.
+.IP \fB\eY\fR 6
 matches only at a point that is not the beginning or end of a word
-.TP
-\fB\eZ\fR
-.
+.IP \fB\eZ\fR 6
 matches only at the end of the string (see \fBMATCHING\fR, below, for
 how this differs from
 .QW \fB$\fR )
-.TP
-\fB\e\fIm\fR
-.
+.IP \fB\e\fIm\fR 6
 (where \fIm\fR is a nonzero digit) a \fIback reference\fR, see below
-.TP
-\fB\e\fImnn\fR
-.
+.IP \fB\e\fImnn\fR 6
 (where \fIm\fR is a nonzero digit, and \fInn\fR is some more digits,
 and the decimal value \fImnn\fR is not greater than the number of
 closing capturing parentheses seen so far) a \fIback reference\fR, see
@@ -692,9 +638,33 @@ earlier in the RE taking priority over ones starting later. Note that
 outer subexpressions thus take priority over their component
 subexpressions.
 .PP
-Note that the quantifiers \fB{1,1}\fR and \fB{1,1}?\fR can be used to
+The quantifiers \fB{1,1}\fR and \fB{1,1}?\fR can be used to
 force longest and shortest preference, respectively, on a
 subexpression or a whole RE.
+.RS
+.PP
+\fBNOTE:\fR This means that you can usually make a RE be non-greedy overall by
+putting \fB{1,1}?\fR after one of the first non-constraint atoms or
+parenthesized sub-expressions in it. \fIIt pays to experiment\fR with the
+placing of this non-greediness override on a suitable range of input texts
+when you are writing a RE if you are using this level of complexity.
+.PP
+For example, this regular expression is non-greedy, and will match the
+shortest substring possible given that
+.QW \fBabc\fR
+will be matched as early as possible (the quantifier does not change that):
+.PP
+.CS
+ab{1,1}?c.*x.*cba
+.CE
+.PP
+The atom
+.QW \fBa\fR
+has no greediness preference, we explicitly give one for
+.QW \fBb\fR ,
+and the remaining quantifiers are overridden to be non-greedy by the preceding
+non-greedy quantifier.
+.RE
 .PP
 Match lengths are measured in characters, not collating elements. An
 empty string is considered longer than no match at all. For example,
diff --git a/doc/read.n b/doc/read.n
index 6e614f2..8ba482e 100644
--- a/doc/read.n
+++ b/doc/read.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH read n 8.1 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,75 +12,16 @@
 .SH NAME
 read \- Read from a channel
 .SH SYNOPSIS
-\fBread \fR?\fB\-nonewline\fR? \fIchannelId\fR
+\fBread \fR?\fB\-nonewline\fR? \fIchannel\fR
 .sp
-\fBread \fIchannelId numChars\fR
+\fBread \fIchannel numChars\fR
 .BE
-
 .SH DESCRIPTION
 .PP
-In the first form, the \fBread\fR command reads all of the data from
-\fIchannelId\fR up to the end of the file.  If the \fB\-nonewline\fR
-switch is specified then the last character of the file is discarded
-if it is a newline.  In the second form, the extra argument specifies
-how many characters to read.  Exactly that many characters will be
-read and returned, unless there are fewer than \fInumChars\fR left in
-the file; in this case all the remaining characters are returned.  If
-the channel is configured to use a multi-byte encoding, then the
-number of characters read may not be the same as the number of bytes
-read.
-.PP
-\fIChannelId\fR must be an identifier for an open channel such as the
-Tcl standard input channel (\fBstdin\fR), the return value from an
-invocation of \fBopen\fR or \fBsocket\fR, or the result of a channel
-creation command provided by a Tcl extension. The channel must have
-been opened for input.
-.PP
-If \fIchannelId\fR is in nonblocking mode, the command may not read as
-many characters as requested: once all available input has been read,
-the command will return the data that is available rather than
-blocking for more input.  If the channel is configured to use a
-multi-byte encoding, then there may actually be some bytes remaining
-in the internal buffers that do not form a complete character.  These
-bytes will not be returned until a complete character is available or
-end-of-file is reached.  The \fB\-nonewline\fR switch is ignored if
-the command returns before reaching the end of the file.
-.PP
-\fBRead\fR translates end-of-line sequences in the input into
-newline characters according to the \fB\-translation\fR option
-for the channel.
-See the \fBfconfigure\fR manual entry for a discussion on ways in
-which \fBfconfigure\fR will alter input.
-
-.SH "USE WITH SERIAL PORTS"
-'\" Note:  this advice actually applies to many versions of Tcl
-
-For most applications a channel connected to a serial port should be
-configured to be nonblocking: \fBfconfigure \fIchannelId \fB\-blocking
-\fI0\fR.  Then \fBread\fR behaves much like described above.  Care
-must be taken when using \fBread\fR on blocking serial ports:
-.TP
-\fBread \fIchannelId numChars\fR 
-In this form \fBread\fR blocks until \fInumChars\fR have been received
-from the serial port.
-.TP
-\fBread \fIchannelId\fR 
-In this form \fBread\fR blocks until the reception of the end-of-file
-character, see \fBfconfigure -eofchar\fR. If there no end-of-file
-character has been configured for the channel, then \fBread\fR will
-block forever.
-.SH "EXAMPLE"
-This example code reads a file all at once, and splits it into a list,
-with each line in the file corresponding to an element in the list:
-.CS
-set fl [open /proc/meminfo]
-set data [\fBread\fR $fl]
-close $fl
-set lines [split $data \en]
-.CE
-
+The \fBread\fR command has been superceded by the \fBchan read\fR
+command which supports the same syntax and options.
 .SH "SEE ALSO"
-file(n), eof(n), fblocked(n), fconfigure(n), Tcl_StandardChannels(3)
-
-.SH KEYWORDS
-blocking, channel, end of line, end of file, nonblocking, read, translation, encoding
+chan(n)
+'\"Local Variables:
+'\"mode: nroff
+'\"End:
diff --git a/doc/refchan.n b/doc/refchan.n
index d27e464..4f78a7b 100644
--- a/doc/refchan.n
+++ b/doc/refchan.n
@@ -1,4 +1,4 @@
-'\" 
+'\"
 '\" Copyright (c) 2006 Andreas Kupries <andreas_kupries@users.sourceforge.net>
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
@@ -9,17 +9,31 @@
 .BS
 .\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
-refchan \- Command handler API of reflected channels, version 1
+refchan \- command handler API of reflected channels
 .SH SYNOPSIS
-\fBcmdPrefix \fIoption\fR ?\fIarg arg ...\fR?
+.nf
+\fBchan create \fImode cmdPrefix\fR
+
+\fIcmdPrefix \fBblocking\fI channel mode\fR
+\fIcmdPrefix \fBcget\fI channel option\fR
+\fIcmdPrefix \fBcgetall\fI channel\fR
+\fIcmdPrefix \fBconfigure\fI channel option value\fR
+\fIcmdPrefix \fBfinalize\fI channel\fR
+\fIcmdPrefix \fBinitialize\fI channel mode\fR
+\fIcmdPrefix \fBread\fI channel count\fR
+\fIcmdPrefix \fBseek\fI channel offset base\fR
+\fIcmdPrefix \fBwatch\fI channel eventspec\fR
+\fIcmdPrefix \fBwrite\fI channel data\fR
+.fi
 .BE
 .SH DESCRIPTION
 .PP
 The Tcl-level handler for a reflected channel has to be a command with
 subcommands (termed an \fIensemble\fR, as it is a command such as that
-created by \fBnamespace ensemble create\fR, though the implementation
+created by \fBnamespace ensemble\fR \fBcreate\fR, though the implementation
 of handlers for reflected channel \fIis not\fR tied to \fBnamespace
-ensemble\fRs in any way). Note that \fIcmdPrefix\fR is whatever was
+ensemble\fRs in any way; see \fBEXAMPLE\fR below for how to build an
+\fBoo::class\fR that supports the API). Note that \fIcmdPrefix\fR is whatever was
 specified in the call to \fBchan create\fR, and may consist of
 multiple arguments; this will be expanded to multiple words in place
 of the prefix.
@@ -28,11 +42,12 @@ Of all the possible subcommands, the handler \fImust\fR support
 \fBinitialize\fR, \fBfinalize\fR, and \fBwatch\fR. Support for the
 other subcommands is optional.
 .SS "MANDATORY SUBCOMMANDS"
+.\" METHOD: initialize
 .TP
-\fIcmdPrefix \fBinitialize \fIchannelId mode\fR
+\fIcmdPrefix \fBinitialize \fIchannel mode\fR
 .
 An invocation of this subcommand will be the first call the
-\fIcmdPrefix\fR will receive for the specified new \fIchannelId\fR. It
+\fIcmdPrefix\fR will receive for the specified new \fIchannel\fR. It
 is the responsibility of this subcommand to set up any internal data
 structures required to keep track of the channel and its state.
 .RS
@@ -45,27 +60,28 @@ this command handler.
 Any error thrown by the method will abort the creation of the channel
 and no channel will be created. The thrown error will appear as error
 thrown by \fBchan create\fR. Any exception other than an \fBerror\fR
-(e.g. \fBbreak\fR, etc.) is treated as (and converted to) an error.
+(e.g.,\ \fBbreak\fR, etc.) is treated as (and converted to) an error.
 .PP
 \fBNote:\fR If the creation of the channel was aborted due to failures
 here, then the \fBfinalize\fR subcommand will not be called.
 .PP
 The \fImode\fR argument tells the handler whether the channel was
 opened for reading, writing, or both. It is a list containing any of
-the strings \fBread\fR or \fBwrite\fR. The list will always
-contain at least one element.
+the strings \fBread\fR or \fBwrite\fR. The list may be empty, but
+will usually contain at least one element.
 .PP
 The subcommand must throw an error if the chosen mode is not
 supported by the \fIcmdPrefix\fR.
 .RE
+.\" METHOD: finalize
 .TP
-\fIcmdPrefix \fBfinalize \fIchannelId\fR
+\fIcmdPrefix \fBfinalize \fIchannel\fR
 .
 An invocation of this subcommand will be the last call the
-\fIcmdPrefix\fR will receive for the specified \fIchannelId\fR. It will
+\fIcmdPrefix\fR will receive for the specified \fIchannel\fR. It will
 be generated just before the destruction of the data structures of the
 channel held by the Tcl core. The command handler \fImust not\fR
-access the \fIchannelId\fR anymore in no way. Upon this subcommand being
+access the \fIchannel\fR anymore in no way. Upon this subcommand being
 called, any internal resources allocated to this channel must be
 cleaned up.
 .RS
@@ -73,18 +89,19 @@ cleaned up.
 The return value of this subcommand is ignored.
 .PP
 If the subcommand throws an error the command which caused its
-invocation (usually \fBclose\fR) will appear to have thrown this
-error. Any exception beyond \fIerror\fR (e.g. \fIbreak\fR, etc.) is
+invocation (usually \fBchan close\fR) will appear to have thrown this
+error. Any exception beyond \fBerror\fR (e.g.,\ \fBbreak\fR, etc.) is
 treated as (and converted to) an error.
 .PP
 This subcommand is not invoked if the creation of the channel was
 aborted during \fBinitialize\fR (See above).
 .RE
+.\" METHOD: watch
 .TP
-\fIcmdPrefix \fBwatch \fIchannelId eventspec\fR
+\fIcmdPrefix \fBwatch \fIchannel eventspec\fR
 .
 This subcommand notifies the \fIcmdPrefix\fR that the specified
-\fIchannelId\fR is interested in the events listed in the
+\fIchannel\fR is interested in the events listed in the
 \fIeventspec\fR. This argument is a list containing any of \fBread\fR
 and \fBwrite\fR. The list may be empty, which signals that the
 channel does not wish to be notified of any events. In that situation,
@@ -92,7 +109,7 @@ the handler should disable event generation completely.
 .RS
 .PP
 \fBWarning:\fR Any return value of the subcommand is ignored. This
-includes all errors thrown by the subcommand, break, continue, and
+includes all errors thrown by the subcommand, \fBbreak\fR, \fBcontinue\fR, and
 custom return codes.
 .PP
 This subcommand interacts with \fBchan postevent\fR. Trying to post an
@@ -100,11 +117,12 @@ event which was not listed in the last call to \fBwatch\fR will cause
 \fBchan postevent\fR to throw an error.
 .RE
 .SS "OPTIONAL SUBCOMMANDS"
+.\" METHOD: read
 .TP
-\fIcmdPrefix \fBread \fIchannelId count\fR
+\fIcmdPrefix \fBread \fIchannel count\fR
 .
 This \fIoptional\fR subcommand is called when the user requests data from the
-channel \fIchannelId\fR. \fIcount\fR specifies how many \fBbytes\fR have been
+channel \fIchannel\fR. \fIcount\fR specifies how many \fIbytes\fR have been
 requested. If the subcommand is not supported then it is not possible to read
 from the channel handled by the command.
 .RS
@@ -130,8 +148,11 @@ error EAGAIN
 .PP
 For extensibility any error whose value is a negative integer number
 will cause the higher layers to set the C-level variable "\fBerrno\fR"
-to the absolute value of this number, signaling a system error. This
-means that both
+to the absolute value of this number, signaling a system error.
+However, note that the exact mapping between these error numbers and
+their meanings is operating system dependent.
+.PP
+For example, while on Linux both
 .PP
 .CS
 return -code error -11
@@ -141,19 +162,24 @@ and
 error -11
 .CE
 .PP
-are equivalent to the examples above, using the more readable string "EAGAIN".
-No other error value has such a mapping to a symbolic string.
+are equivalent to the examples above, using the more readable string "EAGAIN",
+this is not true for BSD, where the equivalent number is -35.
+.PP
+The symbolic string however is the same across systems, and internally
+translated to the correct number. No other error value has such a mapping
+to a symbolic string.
 .PP
 If the subcommand throws any other error, the command which caused its
 invocation (usually \fBgets\fR, or \fBread\fR) will appear to have
-thrown this error. Any exception beyond \fIerror\fR, (e.g.
-\fIbreak\fR, etc.) is treated as and converted to an error.
+thrown this error. Any exception beyond \fBerror\fR, (e.g.,\ \fBbreak\fR,
+etc.) is treated as and converted to an error.
 .RE
+.\" METHOD: write
 .TP
-\fIcmdPrefix \fBwrite \fIchannelId data\fR
+\fIcmdPrefix \fBwrite \fIchannel data\fR
 .
 This \fIoptional\fR subcommand is called when the user writes data to
-the channel \fIchannelId\fR. The \fIdata\fR argument contains \fIbytes\fR, not
+the channel \fIchannel\fR. The \fIdata\fR argument contains \fIbytes\fR, not
 characters. Any type of transformation (EOL, encoding) configured for
 the channel has already been applied at this point. If this subcommand
 is not supported then it is not possible to write to the channel
@@ -203,59 +229,52 @@ to a symbolic string.
 .PP
 If the subcommand throws any other error the command which caused its
 invocation (usually \fBputs\fR) will appear to have thrown this error.
-Any exception beyond \fIerror\fR (e.g.\ \fIbreak\fR, etc.) is treated
+Any exception beyond \fBerror\fR (e.g.,\ \fBbreak\fR, etc.) is treated
 as and converted to an error.
 .RE
+.\" METHOD: seek
 .TP
-\fIcmdPrefix \fBseek \fIchannelId offset base\fR
+\fIcmdPrefix \fBseek \fIchannel offset base\fR
 .
 This \fIoptional\fR subcommand is responsible for the handling of
-\fBseek\fR and \fBtell\fR requests on the channel \fIchannelId\fR. If it is not
-supported then seeking will not be possible for the channel.
+\fBchan seek\fR and \fBchan tell\fR requests on the channel
+\fIchannel\fR. If it is not supported then seeking will not be possible for
+the channel.
 .RS
 .PP
-The \fIbase\fR argument is one of
-.TP 10
-\fBstart\fR
-.
+The \fIbase\fR argument is the same as the equivalent argument of the
+builtin \fBchan seek\fR, namely:
+.IP \fBstart\fR 10
 Seeking is relative to the beginning of the channel.
-.TP 10
-\fBcurrent\fR
-.
+.IP \fBcurrent\fR 10
 Seeking is relative to the current seek position.
-.TP 10
-\fBend\fR
-.
+.IP \fBend\fR 10
 Seeking is relative to the end of the channel.
 .PP
-The \fIbase\fR argument of the builtin \fBchan seek\fR command takes
-the same names.
-.PP
 The \fIoffset\fR is an integer number specifying the amount of
 \fBbytes\fR to seek forward or backward. A positive number should seek
 forward, and a negative number should seek backward.
-.PP
 A channel may provide only limited seeking. For example sockets can
 seek forward, but not backward.
 .PP
 The return value of the subcommand is taken as the (new) location of
 the channel, counted from the start. This has to be an integer number
 greater than or equal to zero.
-.PP
 If the subcommand throws an error the command which caused its
-invocation (usually \fBseek\fR, or \fBtell\fR) will appear to have
-thrown this error. Any exception beyond \fIerror\fR (e.g. \fIbreak\fR,
+invocation (usually \fBchan seek\fR, or \fBchan tell\fR) will appear to have
+thrown this error. Any exception beyond \fBerror\fR (e.g.,\ \fBbreak\fR,
 etc.) is treated as and converted to an error.
 .PP
-The offset/base combination of 0/\fBcurrent\fR signals a \fBtell\fR
-request, i.e. seek nothing relative to the current location, making
+The offset/base combination of 0/\fBcurrent\fR signals a \fBchan tell\fR
+request, i.e.,\ seek nothing relative to the current location, making
 the new location identical to the current one, which is then returned.
 .RE
+.\" METHOD: configure
 .TP
-\fIcmdPrefix \fBconfigure \fIchannelId option value\fR
+\fIcmdPrefix \fBconfigure \fIchannel option value\fR
 .
 This \fIoptional\fR subcommand is for setting the type-specific options of
-channel \fIchannelId\fR. The \fIoption\fR argument indicates the option to be
+channel \fIchannel\fR. The \fIoption\fR argument indicates the option to be
 written, and the \fIvalue\fR argument indicates the value to set the option to.
 .RS
 .PP
@@ -265,31 +284,33 @@ time; that is behavior implemented in the Tcl channel core.
 The return value of the subcommand is ignored.
 .PP
 If the subcommand throws an error the command which performed the
-(re)configuration or query (usually \fBfconfigure\fR or \fBchan
-configure\fR) will appear to have thrown this error. Any exception
-beyond \fIerror\fR (e.g. \fIbreak\fR, etc.) is treated as and
+(re)configuration or query (usually \fBfconfigure\fR or
+\fBchan configure\fR) will appear to have thrown this error. Any exception
+beyond \fBerror\fR (e.g.,\ \fBbreak\fR, etc.) is treated as and
 converted to an error.
 .RE
+.\" METHOD: cget
 .TP
-\fIcmdPrefix \fBcget \fIchannelId option\fR
+\fIcmdPrefix \fBcget \fIchannel option\fR
 .
 This \fIoptional\fR subcommand is used when reading a single type-specific
-option of channel \fIchannelId\fR. If this subcommand is supported then the
+option of channel \fIchannel\fR. If this subcommand is supported then the
 subcommand \fBcgetall\fR must be supported as well.
 .RS
 .PP
 The subcommand should return the value of the specified \fIoption\fR.
 .PP
 If the subcommand throws an error, the command which performed the
-(re)configuration or query (usually \fBfconfigure\fR) will appear to
-have thrown this error. Any exception beyond \fIerror\fR (e.g.
-\fIbreak\fR, etc.) is treated as and converted to an error.
+(re)configuration or query (usually \fBfconfigure\fR or \fBchan configure\fR)
+will appear to have thrown this error. Any exception beyond \fIerror\fR
+(e.g.,\ \fBbreak\fR, etc.) is treated as and converted to an error.
 .RE
+.\" METHOD: cgetall
 .TP
-\fIcmdPrefix \fBcgetall \fIchannelId\fR
+\fIcmdPrefix \fBcgetall \fIchannel\fR
 .
 This \fIoptional\fR subcommand is used for reading all type-specific options
-of channel \fIchannelId\fR. If this subcommand is supported then the
+of channel \fIchannel\fR. If this subcommand is supported then the
 subcommand \fBcget\fR has to be supported as well.
 .RS
 .PP
@@ -297,15 +318,16 @@ The subcommand should return a list of all options and their values.
 This list must have an even number of elements.
 .PP
 If the subcommand throws an error the command which performed the
-(re)configuration or query (usually \fBfconfigure\fR) will appear to
-have thrown this error. Any exception beyond \fIerror\fR (e.g.
-\fIbreak\fR, etc.) is treated as and converted to an error.
+(re)configuration or query (usually \fBfconfigure\fR or \fBchan configure\fR)
+will appear to have thrown this error. Any exception beyond \fBerror\fR
+(e.g.,\ \fBbreak\fR, etc.) is treated as and converted to an error.
 .RE
+.\" METHOD: blocking
 .TP
-\fIcmdPrefix \fBblocking \fIchannelId mode\fR
+\fIcmdPrefix \fBblocking \fIchannel mode\fR
 .
 This \fIoptional\fR subcommand handles changes to the blocking mode of the
-channel \fIchannelId\fR. The \fImode\fR is a boolean flag. A true value means
+channel \fIchannel\fR. The \fImode\fR is a boolean flag. A true value means
 that the channel has to be set to blocking, and a false value means that the
 channel should be non-blocking.
 .RS
@@ -313,19 +335,33 @@ channel should be non-blocking.
 The return value of the subcommand is ignored.
 .PP
 If the subcommand throws an error the command which caused its
-invocation (usually \fBfconfigure\fR) will appear to have thrown this
-error. Any exception beyond \fIerror\fR (e.g. \fIbreak\fR, etc.) is
-treated as and converted to an error.
+invocation (usually \fBfconfigure\fR or \fBchan configure\fR) will appear to
+have thrown this error. Any exception beyond \fBerror\fR (e.g.,\ \fBbreak\fR,
+etc.) is treated as and converted to an error.
+.RE
+.\" METHOD: truncate
+.TP
+\fIcmdPrefix \fBtruncate\fI channel length\fR
+.
+This \fIoptional\fR subcommand handles changing the length of the
+underlying data stream for the channel \fIchannel\fR. Its length
+gets set to \fIlength\fR.
+.RS
+.PP
+If the subcommand throws an error the command which caused its
+invocation (usually \fBchan truncate\fR) will appear to have thrown
+this error. Any exception beyond \fBerror\fR (e.g.,\ \fBbreak\fR,
+etc.) is treated as and converted to an error.
 .RE
 .SH NOTES
 Some of the functions supported in channels defined in Tcl's C
 interface are not available to channels reflected to the Tcl level.
 .PP
-The function \fBTcl_DriverGetHandleProc\fR is not supported; i.e.
-reflected channels do not have OS specific handles.
+The function \fBTcl_DriverGetHandleProc\fR is not supported;
+i.e.,\ reflected channels do not have OS specific handles.
 .PP
 The function \fBTcl_DriverHandlerProc\fR is not supported. This driver
-function is relevant only for stacked channels, i.e. transformations.
+function is relevant only for stacked channels, i.e.,\ transformations.
 Reflected channels are always base channels, not transformations.
 .PP
 The function \fBTcl_DriverFlushProc\fR is not supported. This is
@@ -334,7 +370,73 @@ function anywhere at all. Therefore support at the Tcl level makes no
 sense either. This may be altered in the future (through extending the
 API defined here and changing its version number) should the function
 be used at some time in the future.
+.SH EXAMPLE
+.PP
+This demonstrates how to make a channel that reads from a string.
+.PP
+.CS
+oo::class create stringchan {
+    variable data pos
+    constructor {string {encoding {}}} {
+        if {$encoding eq ""} {set encoding [encoding system]}
+        set data [encoding convertto $encoding $string]
+        set pos 0
+    }
+
+    method \fBinitialize\fR {ch mode} {
+        return "initialize finalize watch read seek"
+    }
+    method \fBfinalize\fR {ch} {
+        my destroy
+    }
+    method \fBwatch\fR {ch events} {
+        # Must be present but we ignore it because we do not
+        # post any events
+    }
+
+    # Must be present on a readable channel
+    method \fBread\fR {ch count} {
+        set d [string range $data $pos [expr {$pos+$count-1}]]
+        incr pos [string length $d]
+        return $d
+    }
+
+    # This method is optional, but useful for the example below
+    method \fBseek\fR {ch offset base} {
+        switch $base {
+            start {
+                set pos $offset
+            }
+            current {
+                incr pos $offset
+            }
+            end {
+                set pos [string length $data]
+                incr pos $offset
+            }
+        }
+        if {$pos < 0} {
+            set pos 0
+        } elseif {$pos > [string length $data]} {
+            set pos [string length $data]
+        }
+        return $pos
+    }
+}
+
+# Now we create an instance...
+set string "The quick brown fox jumps over the lazy dog.\\n"
+set ch [\fBchan create\fR read [stringchan new $string]]
+
+puts [gets $ch];   # Prints the whole string
+
+seek $ch -5 end;
+puts [read $ch];   # Prints just the last word
+.CE
 .SH "SEE ALSO"
-chan(n)
+chan(n), transchan(n)
 .SH KEYWORDS
-channel, reflection
+API, channel, ensemble, prefix, reflection
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/regexp.n b/doc/regexp.n
index db53897..f37ccbe 100644
--- a/doc/regexp.n
+++ b/doc/regexp.n
@@ -3,18 +3,16 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH regexp n 8.3 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
 regexp \- Match a regular expression against a string
-
 .SH SYNOPSIS
 \fBregexp \fR?\fIswitches\fR? \fIexp string \fR?\fImatchVar\fR? ?\fIsubMatchVar subMatchVar ...\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 Determines whether the regular expression \fIexp\fR matches part or
@@ -22,7 +20,7 @@ all of \fIstring\fR and returns 1 if it does, 0 if it does not, unless
 \fB\-inline\fR is specified (see below).
 (Regular expression matching is described in the \fBre_syntax\fR
 reference page.)
-.LP
+.PP
 If additional arguments are specified after \fIstring\fR then they
 are treated as the names of variables in which to return
 information about which part(s) of \fIstring\fR matched \fIexp\fR.
@@ -36,28 +34,36 @@ subexpression to the right in \fIexp\fR, and so on.
 If the initial arguments to \fBregexp\fR start with \fB\-\fR then
 they are treated as switches.  The following switches are
 currently supported:
+.\" OPTION: -about
 .TP 15
 \fB\-about\fR
+.
 Instead of attempting to match the regular expression, returns a list
 containing information about the regular expression.  The first
 element of the list is a subexpression count.  The second element is a
 list of property names that describe various attributes of the regular
 expression. This switch is primarily intended for debugging purposes.
+.\" OPTION: -expanded
 .TP 15
 \fB\-expanded\fR
+.
 Enables use of the expanded regular expression syntax where
 whitespace and comments are ignored.  This is the same as specifying
 the \fB(?x)\fR embedded option (see the \fBre_syntax\fR manual page).
+.\" OPTION: -indices
 .TP 15
 \fB\-indices\fR
-Changes what is stored in the \fIsubMatchVar\fRs. 
+.
+Changes what is stored in the \fImatchVar\fR and \fIsubMatchVar\fRs.
 Instead of storing the matching characters from \fIstring\fR,
 each variable
 will contain a list of two decimal strings giving the indices
 in \fIstring\fR of the first and last characters in the matching
 range of characters.
+.\" OPTION: -line
 .TP 15
 \fB\-line\fR
+.
 Enables newline-sensitive matching.  By default, newline is a
 completely ordinary character with no special meaning.  With this
 flag,
@@ -73,8 +79,10 @@ matches an empty string before any newline in
 addition to its normal function.  This flag is equivalent to
 specifying both \fB\-linestop\fR and \fB\-lineanchor\fR, or the
 \fB(?n)\fR embedded option (see the \fBre_syntax\fR manual page).
+.\" OPTION: -linestop
 .TP 15
 \fB\-linestop\fR
+.
 Changes the behavior of
 .QW [^
 bracket expressions and
@@ -82,8 +90,10 @@ bracket expressions and
 so that they
 stop at newlines.  This is the same as specifying the \fB(?p)\fR
 embedded option (see the \fBre_syntax\fR manual page).
+.\" OPTION: -lineanchor
 .TP 15
 \fB\-lineanchor\fR
+.
 Changes the behavior of
 .QW ^
 and
@@ -94,18 +104,24 @@ so they match the
 beginning and end of a line respectively.  This is the same as
 specifying the \fB(?w)\fR embedded option (see the \fBre_syntax\fR
 manual page).
+.\" OPTION: -nocase
 .TP 15
 \fB\-nocase\fR
+.
 Causes upper-case characters in \fIstring\fR to be treated as
 lower case during the matching process.
+.\" OPTION: -all
 .TP 15
 \fB\-all\fR
+.
 Causes the regular expression to be matched as many times as possible
 in the string, returning the total number of matches found.  If this
 is specified with match variables, they will contain information for
 the last match only.
+.\" OPTION: -inline
 .TP 15
 \fB\-inline\fR
+.
 Causes the command to return, as a list, the data that would otherwise
 be placed in match variables.  When using \fB\-inline\fR,
 match variables may not be specified.  If used with \fB\-all\fR, the
@@ -113,20 +129,23 @@ list will be concatenated at each iteration, such that a flat list is
 always returned.  For each match iteration, the command will append the
 overall match data, plus one element for each subexpression in the
 regular expression.  Examples are:
+.RS
+.PP
 .CS
 \fBregexp\fR -inline -- {\ew(\ew)} " inlined "
       \fI\(-> in n\fR
 \fBregexp\fR -all -inline -- {\ew(\ew)} " inlined "
       \fI\(-> in n li i ne e\fR
 .CE
+.RE
+.\" OPTION: -start
 .TP 15
-\fB\-start\fR \fIindex\fR
+\fB\-start\fI index\fR
+.
 Specifies a character index offset into the string to start
-matching the regular expression at.  
-.VS 8.5
+matching the regular expression at.
 The \fIindex\fR value is interpreted in the same manner
 as the \fIindex\fR argument to \fBstring index\fR.
-.VE 8.5
 When using this switch,
 .QW ^
 will not match the beginning of the line, and \eA will still
@@ -134,8 +153,10 @@ match the start of the string at \fIindex\fR.  If \fB\-indices\fR
 is specified, the indices will be indexed starting from the
 absolute beginning of the input string.
 \fIindex\fR will be constrained to the bounds of the input string.
+.\" OPTION: --
 .TP 15
 \fB\-\|\-\fR
+.
 Marks the end of switches.  The argument following this one will
 be treated as \fIexp\fR even if it starts with a \fB\-\fR.
 .PP
@@ -151,9 +172,11 @@ if \fB\-indices\fR has been specified or to an empty string otherwise.
 Find the first occurrence of a word starting with \fBfoo\fR in a
 string that is not actually an instance of \fBfoobar\fR, and get the
 letters following it up to the end of the word into a variable:
+.PP
 .CS
 \fBregexp\fR {\emfoo(?!bar\eM)(\ew*)} $string \-> restOfWord
 .CE
+.PP
 Note that the whole matched substring has been placed in the variable
 .QW \fB\->\fR ,
 which is a name chosen to look nice given that we are not
@@ -161,31 +184,36 @@ actually interested in its contents.
 .PP
 Find the index of the word \fBbadger\fR (in any case) within a string
 and store that in the variable \fBlocation\fR:
+.PP
 .CS
-\fBregexp\fR \-indices {(?i)\embadger\eM} $string location
+\fBregexp\fR -indices {(?i)\embadger\eM} $string location
 .CE
+.PP
 This could also be written as a \fIbasic\fR regular expression (as opposed
 to using the default syntax of \fIadvanced\fR regular expressions) match by
 prefixing the expression with a suitable flag:
+.PP
 .CS
-\fBregexp\fR \-indices {(?ib)\e<badger\e>} $string location
+\fBregexp\fR -indices {(?ib)\e<badger\e>} $string location
 .CE
 .PP
 This counts the number of octal digits in a string:
+.PP
 .CS
-\fBregexp\fR \-all {[0\-7]} $string
+\fBregexp\fR -all {[0-7]} $string
 .CE
 .PP
 This lists all words (consisting of all sequences of non-whitespace
 characters) in a string, and is useful as a more powerful version of the
 \fBsplit\fR command:
+.PP
 .CS
-\fBregexp\fR \-all \-inline {\eS+} $string
+\fBregexp\fR -all -inline {\eS+} $string
 .CE
 .SH "SEE ALSO"
-re_syntax(n), regsub(n),
-.VS 8.5
-string(n)
-.VE
+re_syntax(n), regsub(n), string(n)
 .SH KEYWORDS
 match, parsing, pattern, regular expression, splitting, string
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/registry.n b/doc/registry.n
index 927af16..811ec5f 100644
--- a/doc/registry.n
+++ b/doc/registry.n
@@ -12,10 +12,11 @@
 .SH NAME
 registry \- Manipulate the Windows registry
 .SH SYNOPSIS
-.sp
-\fBpackage require registry 1.1\fR
-.sp
-\fBregistry \fIoption\fR \fIkeyName\fR ?\fIarg arg ...\fR?
+.nf
+\fBpackage require registry 1.4\fR
+
+\fBregistry \fR?\fI\-mode\fR? \fIoption keyName\fR ?\fIarg arg ...\fR?
+.fi
 .BE
 .SH DESCRIPTION
 .PP
@@ -44,9 +45,16 @@ one of \fBHKEY_LOCAL_MACHINE\fR, \fBHKEY_USERS\fR,
 \fBHKEY_DYN_DATA\fR.  The \fIkeypath\fR can be one or more
 registry key names separated by backslash (\fB\e\fR) characters.
 .PP
+The optional \fI\-mode\fR argument indicates which registry to work
+with; when it is \fB\-32bit\fR the 32-bit registry will be used, and
+when it is \fB\-64bit\fR the 64-bit registry will be used. If this
+argument is omitted, the system's default registry will be the subject
+of the requested operation.
+.PP
 \fIOption\fR indicates what to do with the registry key name.  Any
 unique abbreviation for \fIoption\fR is acceptable.  The valid options
 are:
+.\" METHOD: broadcast
 .TP
 \fBregistry broadcast \fIkeyName\fR ?\fB\-timeout \fImilliseconds\fR?
 .
@@ -73,6 +81,7 @@ set curPath [\fBregistry get\fR $regPath "Path"]
 \fBregistry broadcast\fR "Environment"
 .CE
 .RE
+.\" METHOD: delete
 .TP
 \fBregistry delete \fIkeyName\fR ?\fIvalueName\fR?
 .
@@ -82,6 +91,7 @@ optional \fIvalueName\fR is omitted, the specified key and any subkeys
 or values beneath it in the registry hierarchy will be deleted.  If
 the key could not be deleted then an error is generated.  If the key
 did not exist, the command has no effect.
+.\" METHOD: get
 .TP
 \fBregistry get \fIkeyName valueName\fR
 .
@@ -89,14 +99,16 @@ Returns the data associated with the value \fIvalueName\fR under the key
 \fIkeyName\fR.  If either the key or the value does not exist, then an
 error is generated.  For more details on the format of the returned
 data, see \fBSUPPORTED TYPES\fR, below.
+.\" METHOD: keys
 .TP
 \fBregistry keys \fIkeyName\fR ?\fIpattern\fR?
 .
 If \fIpattern\fR is not specified, returns a list of names of all the
 subkeys of \fIkeyName\fR.  If \fIpattern\fR is specified, only those
 names matching \fIpattern\fR are returned.  Matching is determined
-using the same rules as for \fBstring\fR \fBmatch\fR.  If the
+using the same rules as for \fBstring match\fR.  If the
 specified \fIkeyName\fR does not exist, then an error is generated.
+.\" METHOD: set
 .TP
 \fBregistry set \fIkeyName\fR ?\fIvalueName data \fR?\fItype\fR??
 .
@@ -107,19 +119,21 @@ contents of \fIvalueName\fR are set to \fIdata\fR with the type
 indicated by \fItype\fR.  If \fItype\fR is not specified, the type
 \fBsz\fR is assumed.  For more details on the data and type arguments,
 see \fBSUPPORTED TYPES\fR below.
+.\" METHOD: type
 .TP
 \fBregistry type \fIkeyName valueName\fR
 .
 Returns the type of the value \fIvalueName\fR in the key
 \fIkeyName\fR.  For more information on the possible types, see
 \fBSUPPORTED TYPES\fR, below.
+.\" METHOD: values
 .TP
 \fBregistry values \fIkeyName\fR ?\fIpattern\fR?
 .
 If \fIpattern\fR is not specified, returns a list of names of all the
 values of \fIkeyName\fR.  If \fIpattern\fR is specified, only those
 names matching \fIpattern\fR are returned.  Matching is determined
-using the same rules as for \fBstring\fR \fBmatch\fR.
+using the same rules as for \fBstring match\fR.
 .SH "SUPPORTED TYPES"
 Each value under a key in the registry contains some data of a
 particular type in a type-specific representation.  The \fBregistry\fR
@@ -130,53 +144,35 @@ data, but does not actually change the representation.  For some
 types, the \fBregistry\fR command returns the data in a different form to
 make it easier to manipulate.  The following types are recognized by the
 registry command:
-.TP 17
-\fBbinary\fR
-.
+.IP \fBbinary\fR
 The registry value contains arbitrary binary data.  The data is represented
 exactly in Tcl, including any embedded nulls.
-.TP
-\fBnone\fR
-.
+.IP \fBnone\fR
 The registry value contains arbitrary binary data with no defined
 type.  The data is represented exactly in Tcl, including any embedded
 nulls.
-.TP
-\fBsz\fR
-.
-The registry value contains a null-terminated string.  The data is 
+.IP \fBsz\fR
+The registry value contains a null-terminated string.  The data is
 represented in Tcl as a string.
-.TP
-\fBexpand_sz\fR
-.
+.IP \fBexpand_sz\fR
 The registry value contains a null-terminated string that contains
 unexpanded references to environment variables in the normal Windows
 style (for example,
 .QW %PATH% ).
 The data is represented in Tcl as a string.
-.TP
-\fBdword\fR
-.
+.IP \fBdword\fR
 The registry value contains a little-endian 32-bit number.  The data is
 represented in Tcl as a decimal string.
-.TP
-\fBdword_big_endian\fR
-.
+.IP \fBdword_big_endian\fR
 The registry value contains a big-endian 32-bit number.  The data is
 represented in Tcl as a decimal string.
-.TP
-\fBlink\fR
-.
+.IP \fBlink\fR
 The registry value contains a symbolic link.  The data is represented
 exactly in Tcl, including any embedded nulls.
-.TP
-\fBmulti_sz\fR
-.
+.IP \fBmulti_sz\fR
 The registry value contains an array of null-terminated strings.  The
 data is represented in Tcl as a list of strings.
-.TP
-\fBresource_list\fR
-.
+.IP \fBresource_list\fR
 The registry value contains a device-driver resource list.  The data
 is represented exactly in Tcl, including any embedded nulls.
 .PP
@@ -205,3 +201,6 @@ puts "$ext opens with $command"
 .CE
 .SH KEYWORDS
 registry
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/regsub.n b/doc/regsub.n
index 90e7d88..cb41700 100644
--- a/doc/regsub.n
+++ b/doc/regsub.n
@@ -5,7 +5,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH regsub n 8.3 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -54,8 +54,10 @@ backslashes.
 If the initial arguments to \fBregsub\fR start with \fB\-\fR then
 they are treated as switches.  The following switches are
 currently supported:
-.TP 10
+.\" OPTION: -all
+.TP
 \fB\-all\fR
+.
 All ranges in \fIstring\fR that match \fIexp\fR are found and
 substitution is performed for each of these ranges.
 Without this switch only the first
@@ -66,13 +68,45 @@ and
 .QW \e\fIn\fR
 sequences are handled for each substitution using the information
 from the corresponding match.
-.TP 15
+.\" OPTION: -command
+.TP
+\fB\-command\fR
+.VS TIP463
+Changes the handling of \fIsubSpec\fR so that it is not treated
+as a template for a substitution string and the substrings
+.QW &
+and
+.QW \e\fIn\fR
+no longer have special meaning. Instead \fIsubSpec\fR must be a
+command prefix, that is, a non-empty list.  The substring of \fIstring\fR
+that matches \fIexp\fR, and then each substring that matches each
+capturing sub-RE within \fIexp\fR are appended as additional elements
+to that list. (The items appended to the list are much like what
+\fBregexp\fR \fB\-inline\fR would return).  The completed list is then
+evaluated as a Tcl command, and the result of that command is the
+substitution string.  Any error or exception from command evaluation
+becomes an error or exception from the \fBregsub\fR command.
+.RS
+.PP
+If \fB\-all\fR is not also given, the command callback will be invoked at most
+once (exactly when the regular expression matches). If \fB\-all\fR is given,
+the command callback will be invoked for each matched location, in sequence.
+The exact location indices that matched are not made available to the script.
+.PP
+See \fBEXAMPLES\fR below for illustrative cases.
+.RE
+.VE TIP463
+.\" OPTION: -expanded
+.TP
 \fB\-expanded\fR
+.
 Enables use of the expanded regular expression syntax where
 whitespace and comments are ignored.  This is the same as specifying
 the \fB(?x)\fR embedded option (see the \fBre_syntax\fR manual page).
-.TP 15
+.\" OPTION: -line
+.TP
 \fB\-line\fR
+.
 Enables newline-sensitive matching.  By default, newline is a
 completely ordinary character with no special meaning.  With this flag,
 .QW [^
@@ -87,8 +121,10 @@ matches an empty string before any newline in
 addition to its normal function.  This flag is equivalent to
 specifying both \fB\-linestop\fR and \fB\-lineanchor\fR, or the
 \fB(?n)\fR embedded option (see the \fBre_syntax\fR manual page).
-.TP 15
+.\" OPTION: -linestop
+.TP
 \fB\-linestop\fR
+.
 Changes the behavior of
 .QW [^
 bracket expressions and
@@ -96,8 +132,10 @@ bracket expressions and
 so that they
 stop at newlines.  This is the same as specifying the \fB(?p)\fR
 embedded option (see the \fBre_syntax\fR manual page).
-.TP 15
+.\" OPTION: -lineanchor
+.TP
 \fB\-lineanchor\fR
+.
 Changes the behavior of
 .QW ^
 and
@@ -108,26 +146,30 @@ so they match the
 beginning and end of a line respectively.  This is the same as
 specifying the \fB(?w)\fR embedded option (see the \fBre_syntax\fR
 manual page).
-.TP 10
+.\" OPTION: -nocase
+.TP
 \fB\-nocase\fR
+.
 Upper-case characters in \fIstring\fR will be converted to lower-case
 before matching against \fIexp\fR;  however, substitutions specified
 by \fIsubSpec\fR use the original unconverted form of \fIstring\fR.
-.TP 10
-\fB\-start\fR \fIindex\fR
+.\" OPTION: -start
+.TP
+\fB\-start\fI index\fR
+.
 Specifies a character index offset into the string to start
-matching the regular expression at.  
-.VS 8.5
+matching the regular expression at.
 The \fIindex\fR value is interpreted in the same manner
 as the \fIindex\fR argument to \fBstring index\fR.
-.VE 8.5
 When using this switch,
 .QW ^
 will not match the beginning of the line, and \eA will still
 match the start of the string at \fIindex\fR.
 \fIindex\fR will be constrained to the bounds of the input string.
-.TP 10
+.\" OPTION: --
+.TP
 \fB\-\|\-\fR
+.
 Marks the end of switches.  The argument following this one will
 be treated as \fIexp\fR even if it starts with a \fB\-\fR.
 .PP
@@ -140,24 +182,29 @@ of regular expressions.
 .PP
 Replace (in the string in variable \fIstring\fR) every instance of
 \fBfoo\fR which is a word by itself with \fBbar\fR:
+.PP
 .CS
 \fBregsub\fR -all {\emfoo\eM} $string bar string
 .CE
+.PP
 or (using the
 .QW "basic regular expression"
 syntax):
+.PP
 .CS
 \fBregsub\fR -all {(?b)\e<foo\e>} $string bar string
 .CE
 .PP
 Insert double-quotes around the first instance of the word
 \fBinteresting\fR, however it is capitalized.
+.PP
 .CS
 \fBregsub\fR -nocase {\eyinteresting\ey} $string {"&"} string
 .CE
 .PP
 Convert all non-ASCII and Tcl-significant characters into \eu escape
 sequences by using \fBregsub\fR and \fBsubst\fR in combination:
+.PP
 .CS
 # This RE is just a character class for almost everything "bad"
 set RE {[][{};#\e\e\e$ \er\et\eu0080-\euffff]}
@@ -172,10 +219,66 @@ set substitution {[format \e\e\e\eu%04x [scan "\e\e&" %c]]}
 set quoted [subst [string map {\en {\e\eu000a}} \e
         [\fBregsub\fR -all $RE $string $substitution]]]
 .CE
+.PP
+.VS TIP463
+The above operation can be done using \fBregsub \-command\fR instead, which is
+often faster. (A full pre-computed \fBstring map\fR would be faster still, but
+the cost of computing the map for a transformation as complex as this can be
+quite large.)
+.PP
+.CS
+# This RE is just a character class for everything "bad"
+set RE {[][{};#\e\e\e$\es\eu0080-\euffff]}
+
+# This encodes what the RE described above matches
+proc encodeChar {ch} {
+    # newline is handled specially since backslash-newline is a
+    # special sequence.
+    if {$ch eq "\en"} {
+        return "\e\eu000a"
+    }
+    # No point in writing this as a one-liner
+    scan $ch %c charNumber
+    format "\e\eu%04x" $charNumber
+}
+
+set quoted [\fBregsub\fR -all -command $RE $string encodeChar]
+.CE
+.PP
+Decoding a URL-encoded string using \fBregsub \-command\fR, a lambda term and
+the \fBapply\fR command.
+.PP
+.CS
+# Match one of the sequences in a URL-encoded string that needs
+# fixing, converting + to space and %XX to the right character
+# (e.g., %7e becomes ~)
+set RE {(\e+)|%([0-9A-Fa-f]{2})}
+
+# Note that -command uses a command prefix, not a command name
+set decoded [\fBregsub\fR -all -command $RE $string {apply {{- p h} {
+    # + is a special case; handle directly
+    if {$p eq "+"} {
+        return " "
+    }
+    # convert hex to a char
+    scan $h %x charNumber
+    format %c $charNumber
+}}}]
+.CE
+.PP
+The \fB\-command\fR option can also be useful for restricting the range of
+commands such as \fBstring totitle\fR:
+.PP
+.CS
+set message "the quIck broWn fOX JUmped oVer the laZy dogS..."
+puts [\fBregsub\fR -all -command {\ew+} $message {string totitle}]
+# \(-> \fIThe Quick Brown Fox Jumped Over The Lazy Dogs..\fR
+.CE
+.VE TIP463
 .SH "SEE ALSO"
-regexp(n), re_syntax(n), subst(n),
-.VS 8.5
-string(n)
-.VE
+regexp(n), re_syntax(n), subst(n), string(n)
 .SH KEYWORDS
-match, pattern, quoting, regular expression, substitute
+match, pattern, quoting, regular expression, substitution
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/rename.n b/doc/rename.n
index 0633710..b064f66 100644
--- a/doc/rename.n
+++ b/doc/rename.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH rename n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,7 +14,6 @@ rename \- Rename or delete a command
 .SH SYNOPSIS
 \fBrename \fIoldName newName\fR
 .BE
-
 .SH DESCRIPTION
 .PP
 Rename the command that used to be called \fIoldName\fR so that it
@@ -26,9 +25,11 @@ If a command is renamed into a different namespace,
 future invocations of it will execute in the new namespace.
 The \fBrename\fR command returns an empty string as result.
 .SH EXAMPLE
+.PP
 The \fBrename\fR command can be used to wrap the standard Tcl commands
 with your own monitoring machinery.  For example, you might wish to
 count how often the \fBsource\fR command is called:
+.PP
 .CS
 \fBrename\fR ::source ::theRealSource
 set sourceCount 0
@@ -38,9 +39,11 @@ proc ::source args {
     uplevel 1 ::theRealSource $args
 }
 .CE
-
 .SH "SEE ALSO"
 namespace(n), proc(n)
-
 .SH KEYWORDS
 command, delete, namespace, rename
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/return.n b/doc/return.n
index b7f928a..5e37f24 100644
--- a/doc/return.n
+++ b/doc/return.n
@@ -5,7 +5,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH return n 8.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -13,18 +13,18 @@
 .SH NAME
 return \- Return from a procedure, or set return code of a script
 .SH SYNOPSIS
+.nf
 \fBreturn \fR?\fIresult\fR?
-.sp
 \fBreturn \fR?\fB\-code \fIcode\fR? ?\fIresult\fR?
-.sp
 \fBreturn \fR?\fIoption value \fR...? ?\fIresult\fR?
+.fi
 .BE
 .SH DESCRIPTION
 .PP
 In its simplest usage, the \fBreturn\fR command is used without options
 in the body of a procedure to immediately return control to the caller
 of the procedure.  If a \fIresult\fR argument is provided, its value
-becomes the result of the procedure passed back to the caller.  
+becomes the result of the procedure passed back to the caller.
 If \fIresult\fR is not specified then an empty string will be returned
 to the caller as the result of the procedure.
 .PP
@@ -45,34 +45,43 @@ However, the \fB\-code\fR option may be used to generate an
 exceptional return from the procedure.
 \fICode\fR may have any of the following values:
 .TP 13
-\fBok (or 0)\fR
+\fBok\fR (or \fB0\fR)
+.
 Normal return:  same as if the option is omitted.  The return code
 of the procedure is 0 (\fBTCL_OK\fR).
 .TP 13
-\fBerror (1)\fR
+\fBerror\fR (or \fB1\fR)
+.
 Error return: the return code of the procedure is 1 (\fBTCL_ERROR\fR).
 The procedure command behaves in its calling context as if it
-were the command \fBerror \fIresult\fR.  See below for additional
+were the command \fBerror\fI result\fR.  See below for additional
 options.
 .TP 13
-\fBreturn (2)\fR
+\fBreturn\fR (or \fB2\fR)
+.
 The return code of the procedure is 2 (\fBTCL_RETURN\fR).  The
 procedure command behaves in its calling context as if it
 were the command \fBreturn\fR (with no arguments).
 .TP 13
-\fBbreak (3)\fR
+\fBbreak\fR (or \fB3\fR)
+.
 The return code of the procedure is 3 (\fBTCL_BREAK\fR).  The
 procedure command behaves in its calling context as if it
 were the command \fBbreak\fR.
 .TP 13
-\fBcontinue (4)\fR
+\fBcontinue\fR (or \fB4\fR)
+.
 The return code of the procedure is 4 (\fBTCL_CONTINUE\fR).  The
 procedure command behaves in its calling context as if it
 were the command \fBcontinue\fR.
 .TP 13
 \fIvalue\fR
+.
 \fIValue\fR must be an integer;  it will be returned as the
-return code for the current procedure.
+return code for the current procedure. Applications
+and packages should use values in the range 5 to 1073741823 (0x3fffffff)
+for their own purposes. Values outside this range are reserved
+for use by Tcl.
 .LP
 When a procedure wants to signal that it has received invalid
 arguments from its caller, it may use \fBreturn -code error\fR
@@ -87,7 +96,6 @@ an invocation of the \fBreturn \-code \fIcode\fR command will cause
 the return code of \fBsource\fR to be \fIcode\fR.
 .SH "RETURN OPTIONS"
 .PP
-.VS 8.5
 In addition to a result and a return code, evaluation of a command
 in Tcl also produces a dictionary of return options.  In general
 usage, all \fIoption value\fR pairs given as arguments to \fBreturn\fR
@@ -96,29 +104,32 @@ are acceptable except as noted below.  The \fBcatch\fR command may be
 used to capture all of this information \(em the return code, the result,
 and the return options dictionary \(em that arise from evaluation of a
 script.
-.VE 8.5
 .PP
 As documented above, the \fB\-code\fR entry in the return options dictionary
 receives special treatment by Tcl.  There are other return options also
 recognized and treated specially by Tcl.  They are:
+.\" OPTION: -errorcode
 .TP
 \fB\-errorcode \fIlist\fR
+.
 The \fB\-errorcode\fR option receives special treatment only when the value
 of the \fB\-code\fR option is \fBTCL_ERROR\fR.  Then the \fIlist\fR value
 is meant to be additional information about the error,
 presented as a Tcl list for further processing by programs.
 If no \fB\-errorcode\fR option is provided to \fBreturn\fR when
 the \fB\-code error\fR option is provided, Tcl will set the value
-of the \fB\-errorcode\fR entry in the return options dictionary 
+of the \fB\-errorcode\fR entry in the return options dictionary
 to the default value of \fBNONE\fR.  The \fB\-errorcode\fR return
 option will also be stored in the global variable \fBerrorCode\fR.
+.\" OPTION: -errorinfo
 .TP
 \fB\-errorinfo \fIinfo\fR
+.
 The \fB\-errorinfo\fR option receives special treatment only when the value
 of the \fB\-code\fR option is \fBTCL_ERROR\fR.  Then \fIinfo\fR is the initial
 stack trace, meant to provide to a human reader additional information
 about the context in which the error occurred.  The stack trace will
-also be stored in the global variable \fBerrorInfo\fR.  
+also be stored in the global variable \fBerrorInfo\fR.
 If no \fB\-errorinfo\fR option is provided to \fBreturn\fR when
 the \fB\-code error\fR option is provided, Tcl will provide its own
 initial stack trace value in the entry for \fB\-errorinfo\fR.  Tcl's
@@ -129,9 +140,29 @@ the procedure.  Typically the \fIinfo\fR value is supplied from
 the value of \fB\-errorinfo\fR in a return options dictionary captured
 by the \fBcatch\fR command (or from the copy of that information
 stored in the global variable \fBerrorInfo\fR).
+.\" OPTION: -errorstack
+.TP
+\fB\-errorstack \fIlist\fR
+.
+The \fB\-errorstack\fR option receives special treatment only when the value
+of the \fB\-code\fR option is \fBTCL_ERROR\fR.  Then \fIlist\fR is the initial
+error stack, recording actual argument values passed to each proc level.
+The error stack will
+also be reachable through \fBinfo errorstack\fR.
+If no \fB\-errorstack\fR option is provided to \fBreturn\fR when
+the \fB\-code error\fR option is provided, Tcl will provide its own
+initial error stack in the entry for \fB\-errorstack\fR.  Tcl's
+initial error stack will include only the call to the procedure, and
+stack unwinding will append information about higher stack levels, but
+there will be no information about the context of the error within
+the procedure.  Typically the \fIlist\fR value is supplied from
+the value of \fB\-errorstack\fR in a return options dictionary captured
+by the \fBcatch\fR command (or from the copy of that information from
+\fBinfo errorstack\fR).
+.\" OPTION: -level
 .TP
 \fB\-level \fIlevel\fR
-.VS 8.5
+.
 The \fB\-level\fR and \fB\-code\fR options work together to set the return
 code to be returned by one of the commands currently being evaluated.
 The \fIlevel\fR value must be a non-negative integer representing a number
@@ -141,14 +172,13 @@ be \fIcode\fR.  If no \fB\-level\fR option is provided, the default value
 of \fIlevel\fR is 1, so that \fBreturn\fR sets the return code that the
 current procedure returns to its caller, 1 level up the call stack.  The
 mechanism by which these options work is described in more detail below.
-.VE 8.5
+.\" OPTION: -options
 .TP
 \fB\-options \fIoptions\fR
-.VS 8.5
+.
 The value \fIoptions\fR must be a valid dictionary.  The entries of that
 dictionary are treated as additional \fIoption value\fR pairs for the
 \fBreturn\fR command.
-.VE 8.5
 .SH "RETURN CODE HANDLING MECHANISMS"
 .PP
 Return codes are used in Tcl to control program flow.  A Tcl script
@@ -174,10 +204,9 @@ of \fBTCL_BREAK\fR or \fBTCL_CONTINUE\fR, the loop command can react in such
 a way as to give the \fBbreak\fR and \fBcontinue\fR commands
 their documented interpretation in loops.
 .PP
-.VS 8.5
 Procedure invocation also involves evaluation of a script, the body
 of the procedure.  Procedure invocation provides special treatment
-when evaluation of the procedure body returns the return code 
+when evaluation of the procedure body returns the return code
 \fBTCL_RETURN\fR.  In that circumstance, the \fB\-level\fR entry in the
 return options dictionary is decremented.  If after decrementing,
 the value of the \fB\-level\fR entry is 0, then the value of
@@ -202,20 +231,22 @@ of the \fB\-code\fR option (or \fBTCL_OK\fR by default).  Any other value
 for the \fB\-level\fR option (including the default value of 1)
 will cause the return code of the \fBreturn\fR command itself
 to be \fBTCL_RETURN\fR, triggering a return from the enclosing procedure.
-.VE 8.5
 .SH EXAMPLES
+.PP
 First, a simple example of using \fBreturn\fR to return from a
 procedure, interrupting the procedure body.
+.PP
 .CS
 proc printOneLine {} {
-   puts "line 1"    ;# This line will be printed.
-   \fBreturn\fR		
-   puts "line 2"    ;# This line will not be printed.
+    puts "line 1"    ;# This line will be printed.
+    \fBreturn\fR
+    puts "line 2"    ;# This line will not be printed.
 }
 .CE
 .PP
 Next, an example of using \fBreturn\fR to set the value
 returned by the procedure.
+.PP
 .CS
 proc returnX {} {\fBreturn\fR X}
 puts [returnX]    ;# prints "X"
@@ -223,74 +254,73 @@ puts [returnX]    ;# prints "X"
 .PP
 Next, a more complete example, using \fBreturn -code error\fR
 to report invalid arguments.
+.PP
 .CS
 proc factorial {n} {
-   if {![string is integer $n] || ($n < 0)} {
-      \fBreturn\fR -code error \e
-            "expected non-negative integer,\e
-             but got \e"$n\e""
-   }
-   if {$n < 2} {
-      \fBreturn\fR 1
-   }
-   set m [expr {$n - 1}]
-   set code [catch {factorial $m} factor]
-   if {$code != 0} {
-      \fBreturn\fR -code $code $factor
-   }
-   set product [expr {$n * $factor}]
-   if {$product < 0} {
-      \fBreturn\fR -code error \e
-            "overflow computing factorial of $n"
-   }
-   \fBreturn\fR $product
+    if {![string is integer $n] || ($n < 0)} {
+        \fBreturn\fR -code error \e
+                "expected non-negative integer,\e
+                but got \e"$n\e""
+    }
+    if {$n < 2} {
+        \fBreturn\fR 1
+    }
+    set factor [factorial [expr {$n - 1}]]
+    set product [expr {$n * $factor}]
+    \fBreturn\fR $product
 }
 .CE
 .PP
 Next, a procedure replacement for \fBbreak\fR.
+.PP
 .CS
 proc myBreak {} {
-   \fBreturn\fR -code break
+    \fBreturn\fR -code break
 }
 .CE
 .PP
-.VS 8.5
 With the \fB\-level 0\fR option, \fBreturn\fR itself can serve
-as a replacement for \fBbreak\fR.
+as a replacement for \fBbreak\fR, with the help of \fBinterp alias\fR.
+.PP
 .CS
 interp alias {} Break {} \fBreturn\fR -level 0 -code break
 .CE
 .PP
 An example of using \fBcatch\fR and \fBreturn -options\fR to
 re-raise a caught error:
+.PP
 .CS
 proc doSomething {} {
-   set resource [allocate]
-   catch {
-      # Long script of operations
-      # that might raise an error
-   } result options
-   deallocate $resource
-   \fBreturn\fR -options $options $result
+    set resource [allocate]
+    catch {
+        # Long script of operations
+        # that might raise an error
+    } result options
+    deallocate $resource
+    \fBreturn\fR -options $options $result
 }
 .CE
 .PP
 Finally an example of advanced use of the \fBreturn\fR options
 to create a procedure replacement for \fBreturn\fR itself:
+.PP
 .CS
 proc myReturn {args} {
-   set result ""
-   if {[llength $args] % 2} {
-      set result [lindex $args end]
-      set args [lrange $args 0 end-1]
-   }
-   set options [dict merge {-level 1} $args]
-   dict incr options -level
-   \fBreturn\fR -options $options $result
+    set result ""
+    if {[llength $args] % 2} {
+        set result [lindex $args end]
+        set args [lrange $args 0 end-1]
+    }
+    set options [dict merge {-level 1} $args]
+    dict incr options -level
+    \fBreturn\fR -options $options $result
 }
 .CE
-.VE 8.5
 .SH "SEE ALSO"
-break(n), catch(n), continue(n), dict(n), error(n), proc(n), source(n), tclvars(n)
+break(n), catch(n), continue(n), dict(n), error(n), errorCode(n),
+errorInfo(n), proc(n), source(n), throw(n), try(n)
 .SH KEYWORDS
-break, catch, continue, error, procedure, return
+break, catch, continue, error, exception, procedure, result, return
+.\" Local Variables:
+.\" mode: nroff
+.\" End:
diff --git a/doc/safe.n b/doc/safe.n
index 9ecc9a0..14e0125 100644
--- a/doc/safe.n
+++ b/doc/safe.n
@@ -3,48 +3,49 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH "Safe Tcl" n 8.0 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
-Safe\ Base \- A mechanism for creating and manipulating safe interpreters
+safe \- Creating and manipulating safe interpreters
 .SH SYNOPSIS
-\fB::safe::interpCreate\fR ?\fIslave\fR? ?\fIoptions...\fR?
-.sp
-\fB::safe::interpInit\fR \fIslave\fR ?\fIoptions...\fR?
-.sp
-\fB::safe::interpConfigure\fR \fIslave\fR ?\fIoptions...\fR?
-.sp
-\fB::safe::interpDelete\fR \fIslave\fR
-.sp
-\fB::safe::interpAddToAccessPath\fR \fIslave\fR \fIdirectory\fR
-.sp
-\fB::safe::interpFindInAccessPath\fR \fIslave\fR \fIdirectory\fR
-.sp
+.nf
+\fB::safe::interpCreate\fR ?\fIchild\fR? ?\fIoptions...\fR?
+\fB::safe::interpInit\fI child\fR ?\fIoptions...\fR?
+\fB::safe::interpConfigure\fI child\fR ?\fIoptions...\fR?
+\fB::safe::interpDelete\fI child\fR
+\fB::safe::interpAddToAccessPath\fI child directory\fR
+\fB::safe::interpFindInAccessPath\fI child directory\fR
+\fB::safe::setSyncMode\fR ?\fInewValue\fR?
 \fB::safe::setLogCmd\fR ?\fIcmd arg...\fR?
+.fi
 .SS OPTIONS
-.PP
-?\fB\-accessPath\fR \fIpathList\fR?
-?\fB\-statics\fR \fIboolean\fR? ?\fB\-noStatics\fR?
-?\fB\-nested\fR \fIboolean\fR? ?\fB\-nestedLoadOk\fR?
-?\fB\-deleteHook\fR \fIscript\fR?
+.nf
+?\fB\-accessPath\fI pathList\fR?
+?\fB\-autoPath\fI pathList\fR?
+?\fB\-statics\fI boolean\fR?
+?\fB\-noStatics\fR?
+?\fB\-nested\fI boolean\fR?
+?\fB\-nestedLoadOk\fR?
+?\fB\-deleteHook\fI script\fR?
+.fi
 .BE
 .SH DESCRIPTION
 Safe Tcl is a mechanism for executing untrusted Tcl scripts
 safely and for providing mediated access by such scripts to
 potentially dangerous functionality.
 .PP
-The Safe Base ensures that untrusted Tcl scripts cannot harm the
+Safe Tcl ensures that untrusted Tcl scripts cannot harm the
 hosting application.
-The Safe Base prevents integrity and privacy attacks. Untrusted Tcl
+It prevents integrity and privacy attacks. Untrusted Tcl
 scripts are prevented from corrupting the state of the hosting
 application or computer. Untrusted scripts are also prevented from
 disclosing information stored on the hosting computer or in the
 hosting application to any party.
 .PP
-The Safe Base allows a master interpreter to create safe, restricted
+Safe Tcl allows a parent interpreter to create safe, restricted
 interpreters that contain a set of predefined aliases for the \fBsource\fR,
 \fBload\fR, \fBfile\fR, \fBencoding\fR, and \fBexit\fR commands and
 are able to use the auto-loading and package mechanisms.
@@ -53,39 +54,55 @@ No knowledge of the file system structure is leaked to the
 safe interpreter, because it has access only to a virtualized path
 containing tokens. When the safe interpreter requests to source a file, it
 uses the token in the virtual path as part of the file name to source; the
-master interpreter transparently 
-translates the token into a real directory name and executes the 
+parent interpreter transparently
+translates the token into a real directory name and executes the
 requested operation (see the section \fBSECURITY\fR below for details).
 Different levels of security can be selected by using the optional flags
 of the commands described below.
 .PP
-All commands provided in the master interpreter by the Safe Base reside in
+All commands provided in the parent interpreter by Safe Tcl reside in
 the \fBsafe\fR namespace.
 .SH COMMANDS
-The following commands are provided in the master interpreter:
+The following commands are provided in the parent interpreter:
+.\" COMMAND: interpCreate
 .TP
-\fB::safe::interpCreate\fR ?\fIslave\fR? ?\fIoptions...\fR?
+\fB::safe::interpCreate\fR ?\fIchild\fR? ?\fIoptions...\fR?
+.
 Creates a safe interpreter, installs the aliases described in the section
 \fBALIASES\fR and initializes the auto-loading and package mechanism as
 specified by the supplied \fIoptions\fR.
 See the \fBOPTIONS\fR section below for a description of the
 optional arguments.
-If the \fIslave\fR argument is omitted, a name will be generated.
+If the \fIchild\fR argument is omitted, a name will be generated.
 \fB::safe::interpCreate\fR always returns the interpreter name.
+.RS
+.PP
+The interpreter name \fIchild\fR may include namespace separators,
+but may not have leading or trailing namespace separators, or excess
+colon characters in namespace separators.  The interpreter name is
+qualified relative to the global namespace ::, not the namespace in which
+the \fB::safe::interpCreate\fR command is evaluated.
+.RE
+.\" COMMAND: interpInit
 .TP
-\fB::safe::interpInit\fR \fIslave\fR ?\fIoptions...\fR?
+\fB::safe::interpInit\fI child\fR ?\fIoptions...\fR?
+.
 This command is similar to \fBinterpCreate\fR except it that does not
-create the safe interpreter. \fIslave\fR must have been created by some
-other means, like \fBinterp create \-safe\fR.
+create the safe interpreter. \fIchild\fR must have been created by some
+other means, like \fBinterp create\fR \fB\-safe\fR.  The interpreter
+name \fIchild\fR may include namespace separators, subject to the same
+restrictions as for \fBinterpCreate\fR.
+.\" COMMAND: interpConfigure
 .TP
-\fB::safe::interpConfigure\fR \fIslave\fR ?\fIoptions...\fR?
+\fB::safe::interpConfigure\fI child\fR ?\fIoptions...\fR?
+.
 If no \fIoptions\fR are given, returns the settings for all options for the
 named safe interpreter as a list of options and their current values
-for that \fIslave\fR. 
+for that \fIchild\fR.
 If a single additional argument is provided,
 it will return a list of 2 elements \fIname\fR and \fIvalue\fR where
 \fIname\fR is the full name of that option and \fIvalue\fR the current value
-for that option and the \fIslave\fR.
+for that option and the \fIchild\fR.
 If more than two additional arguments are provided, it will reconfigure the
 safe interpreter and change each and only the provided options.
 See the section on \fBOPTIONS\fR below for options description.
@@ -97,22 +114,26 @@ Example of use:
 set i1 [safe::interpCreate {*}[safe::interpConfigure $i0]]
 
 # Get the current deleteHook
-set dh [safe::interpConfigure $i0  \-del]
+set dh [safe::interpConfigure $i0  -del]
 
 # Change (only) the statics loading ok attribute of an
 # interp and its deleteHook (leaving the rest unchanged):
-safe::interpConfigure $i0  \-delete {foo bar} \-statics 0
+safe::interpConfigure $i0  -delete {foo bar} -statics 0
 .CE
 .RE
+.\" COMMAND: interpDelete
 .TP
-\fB::safe::interpDelete\fR \fIslave\fR
-Deletes the safe interpreter and cleans up the corresponding  
-master interpreter data structures.
+\fB::safe::interpDelete\fI child\fR
+.
+Deletes the safe interpreter and cleans up the corresponding
+parent interpreter data structures.
 If a \fIdeleteHook\fR script was specified for this interpreter it is
 evaluated before the interpreter is deleted, with the name of the
 interpreter as an additional argument.
+.\" COMMAND: interpFindInAccessPath
 .TP
-\fB::safe::interpFindInAccessPath\fR \fIslave\fR \fIdirectory\fR
+\fB::safe::interpFindInAccessPath\fI child directory\fR
+.
 This command finds and returns the token for the real directory
 \fIdirectory\fR in the safe interpreter's current virtual access path.
 It generates an error if the directory is not found.
@@ -120,14 +141,16 @@ Example of use:
 .RS
 .PP
 .CS
-$slave eval [list set tk_library \e
+$child eval [list set tk_library \e
       [::safe::interpFindInAccessPath $name $tk_library]]
 .CE
 .RE
+.\" COMMAND: interpAddToAccessPath
 .TP
-\fB::safe::interpAddToAccessPath\fR \fIslave\fR \fIdirectory\fR
+\fB::safe::interpAddToAccessPath\fI child directory\fR
+.
 This command adds \fIdirectory\fR to the virtual path maintained for the
-safe interpreter in the master, and returns the token that can be used in
+safe interpreter in the parent, and returns the token that can be used in
 the safe interpreter to obtain access to files in that directory.
 If the directory is already in the virtual path, it only returns the token
 without adding the directory to the virtual path again.
@@ -135,12 +158,25 @@ Example of use:
 .RS
 .PP
 .CS
-$slave eval [list set tk_library \e
+$child eval [list set tk_library \e
       [::safe::interpAddToAccessPath $name $tk_library]]
 .CE
 .RE
+.\" COMMAND: setSyncMode
+.TP
+\fB::safe::setSyncMode\fR ?\fInewValue\fR?
+.
+This command is used to get or set the "Sync Mode" of the Safe Base.
+When an argument is supplied, the command returns an error if the argument
+is not a boolean value, or if any Safe Base interpreters exist.  Typically
+the value will be set as part of initialization - boolean true for
+"Sync Mode" on (the default), false for "Sync Mode" off.  With "Sync Mode"
+on, the Safe Base keeps each child interpreter's ::auto_path synchronized
+with its access path.  See the section \fBSYNC MODE\fR below for details.
+.\" COMMAND: setLogCmd
 .TP
 \fB::safe::setLogCmd\fR ?\fIcmd arg...\fR?
+.
 This command installs a script that will be called when interesting
 life cycle events occur for a safe interpreter.
 When called with no arguments, it returns the currently installed script.
@@ -168,55 +204,76 @@ Note that the safe interpreter only received an error message saying that
 the file was not found:
 .PP
 .CS
-NOTICE for slave interp10 : Created
-NOTICE for slave interp10 : Setting accessPath=(/foo/bar) staticsok=1 nestedok=0 deletehook=()
-NOTICE for slave interp10 : auto_path in interp10 has been set to {$p(:0:)}
-ERROR for slave interp10 : /foo/bar/init.tcl: no such file or directory
+NOTICE for child interp10 : Created
+NOTICE for child interp10 : Setting accessPath=(/foo/bar) staticsok=1 nestedok=0 deletehook=()
+NOTICE for child interp10 : auto_path in interp10 has been set to {$p(:0:)}
+ERROR for child interp10 : /foo/bar/init.tcl: no such file or directory
 .CE
 .RE
 .SS OPTIONS
-The following options are common to 
-\fB::safe::interpCreate\fR, \fB::safe::interpInit\fR, 
+The following options are common to
+\fB::safe::interpCreate\fR, \fB::safe::interpInit\fR,
 and \fB::safe::interpConfigure\fR.
-Any option name can be abbreviated to its minimal 
+Any option name can be abbreviated to its minimal
 non-ambiguous name.
 Option names are not case sensitive.
-.TP 
-\fB\-accessPath\fR \fIdirectoryList\fR
+.\" OPTION: -accessPath
+.TP
+\fB\-accessPath\fI directoryList\fR
+.
 This option sets the list of directories from which the safe interpreter
 can \fBsource\fR and \fBload\fR files.
 If this option is not specified, or if it is given as the
 empty list, the safe interpreter will use the same directories as its
-master for auto-loading.
-See the section \fBSECURITY\fR below for more detail about virtual paths, 
+parent for auto-loading.
+See the section \fBSECURITY\fR below for more detail about virtual paths,
 tokens and access control.
+.\" OPTION: -autoPath
+.TP
+\fB\-autoPath\fI directoryList\fR
+.
+This option sets the list of directories in the safe interpreter's
+::auto_path.  The option is undefined if the Safe Base has "Sync Mode" on
+- in that case the safe interpreter's ::auto_path is managed by the Safe
+Base and is a tokenized form of its access path.
+See the section \fBSYNC MODE\fR below for details.
+.\" OPTION: -statics
 .TP
-\fB\-statics\fR \fIboolean\fR
+\fB\-statics\fI boolean\fR
+.
 This option specifies if the safe interpreter will be allowed
 to load statically linked packages (like \fBload {} Tk\fR).
-The default value is \fBtrue\fR : 
+The default value is \fBtrue\fR :
 safe interpreters are allowed to load statically linked packages.
+.\" OPTION: -noStatics
 .TP
 \fB\-noStatics\fR
+.
 This option is a convenience shortcut for \fB\-statics false\fR and
 thus specifies that the safe interpreter will not be allowed
 to load statically linked packages.
+.\" OPTION: -nested
 .TP
-\fB\-nested\fR \fIboolean\fR
+\fB\-nested\fI boolean\fR
+.
 This option specifies if the safe interpreter will be allowed
 to load packages into its own sub-interpreters.
-The default value is \fBfalse\fR : 
+The default value is \fBfalse\fR :
 safe interpreters are not allowed to load packages into
 their own sub-interpreters.
+.\" OPTION: -nestedLoadOk
 .TP
 \fB\-nestedLoadOk\fR
+.
 This option is a convenience shortcut for \fB\-nested true\fR and
 thus specifies the safe interpreter will be allowed
 to load packages into its own sub-interpreters.
-.TP 
-\fB\-deleteHook\fR \fIscript\fR
+.\" OPTION: -deleteHook
+.TP
+\fB\-deleteHook\fI script\fR
+.
 When this option is given a non-empty \fIscript\fR, it will be
-evaluated in the master with the name of
+evaluated in the parent with the name of
 the safe interpreter as an additional argument
 just before actually deleting the safe interpreter.
 Giving an empty value removes any currently installed deletion hook
@@ -225,7 +282,8 @@ The default value (\fB{}\fR) is not to have any deletion call back.
 .SH ALIASES
 The following aliases are provided in a safe interpreter:
 .TP
-\fBsource\fR \fIfileName\fR
+\fBsource\fI fileName\fR
+.
 The requested file, a Tcl source file, is sourced into the safe interpreter
 if it is found.
 The \fBsource\fR alias can only source files from directories in
@@ -236,7 +294,8 @@ which the file to be sourced can be found.
 See the section on \fBSECURITY\fR for more discussion of restrictions on
 valid filenames.
 .TP
-\fBload\fR \fIfileName\fR
+\fBload\fI fileName\fR
+.
 The requested file, a shared object file, is dynamically loaded into the
 safe interpreter if it is found.
 The filename must contain a token name mentioned in the virtual path for
@@ -244,30 +303,33 @@ the safe interpreter for it to be found successfully.
 Additionally, the shared object file must contain a safe entry point; see
 the manual page for the \fBload\fR command for more details.
 .TP
-\fBfile\fR ?\fIsubCmd args...\fR?
+\fBfile\fR ?\fIsubcommand args...\fR?
+.
 The \fBfile\fR alias provides access to a safe subset of the subcommands of
 the \fBfile\fR command; it allows only \fBdirname\fR, \fBjoin\fR,
-\fBextension\fR, \fBroot\fR, \fBtail\fR, \fBpathname\fR and \fBsplit\fR
+\fBextension\fR, \fBroot\fR, \fBtail\fR, \fBpathtype\fR and \fBsplit\fR
 subcommands. For more details on what these subcommands do see the manual
 page for the \fBfile\fR command.
 .TP
-\fBencoding\fR ?\fIsubCmd args...\fR?
+\fBencoding\fR ?\fIsubcommand args...\fR?
+.
 The \fBencoding\fR alias provides access to a safe subset of the
 subcommands of the \fBencoding\fR command;  it disallows setting of
 the system encoding, but allows all other subcommands including
 \fBsystem\fR to check the current encoding.
 .TP
 \fBexit\fR
+.
 The calling interpreter is deleted and its computation is stopped, but the
 Tcl process in which this interpreter exists is not terminated.
 .SH SECURITY
-The Safe Base does not attempt to completely prevent annoyance and
+Safe Tcl does not attempt to completely prevent annoyance and
 denial of service attacks. These forms of attack prevent the
 application or user from temporarily using the computer to perform
 useful work, for example by consuming all available CPU time or
 all available screen real estate.
 These attacks, while aggravating, are deemed to be of lesser importance
-in general than integrity and privacy attacks that the Safe Base
+in general than integrity and privacy attacks that Safe Tcl
 is to prevent.
 .PP
 The commands available in a safe interpreter, in addition to
@@ -281,22 +343,22 @@ potential for information leakage about its directory structure.
 To prevent this, commands that take file names as arguments in a safe
 interpreter use tokens instead of the real directory names.
 These tokens are translated to the real directory name while a request to,
-e.g., source a file is mediated by the master interpreter.
-This virtual path system is maintained in the master interpreter for each safe
+e.g., source a file is mediated by the parent interpreter.
+This virtual path system is maintained in the parent interpreter for each safe
 interpreter created by \fB::safe::interpCreate\fR or initialized by
 \fB::safe::interpInit\fR and
 the path maps tokens accessible in the safe interpreter into real path
-names on the local file system thus preventing safe interpreters 
+names on the local file system thus preventing safe interpreters
 from gaining knowledge about the
 structure of the file system of the host on which the interpreter is
 executing.
 The only valid file names arguments
-for the \fBsource\fR and \fBload\fR aliases provided to the slave
-are path in the form of 
-\fB[file join \fR\fItoken filename\fR\fB]\fR (i.e. when using the
-native file path formats: \fItoken\fR\fB/\fR\fIfilename\fR
-on Unix and \fItoken\fR\fB\e\fIfilename\fR on Windows),
-where \fItoken\fR is representing one of the directories 
+for the \fBsource\fR and \fBload\fR aliases provided to the child
+are path in the form of
+\fB[file join \fItoken filename\fB]\fR (i.e. when using the
+native file path formats: \fItoken\fB/\fIfilename\fR
+on Unix and \fItoken\fB\e\fIfilename\fR on Windows),
+where \fItoken\fR is representing one of the directories
 of the \fIaccessPath\fR list and \fIfilename\fR is
 one file in that directory (no sub directories access are allowed).
 .PP
@@ -320,28 +382,29 @@ or be called
 .PP
 Each element of the initial access path
 list will be assigned a token that will be set in
-the slave \fBauto_path\fR and the first element of that list will be set as
-the \fBtcl_library\fR for that slave.
+the child \fBauto_path\fR and the first element of that list will be set as
+the \fBtcl_library\fR for that child.
 .PP
-If the access path argument is not given or is the empty list, 
-the default behavior is to let the slave access the same packages
-as the master has access to (Or to be more precise: 
+If the access path argument is not given to \fB::safe::interpCreate\fR or
+\fB::safe::interpInit\fR or is the empty list,
+the default behavior is to let the child access the same packages
+as the parent has access to (Or to be more precise:
 only packages written in Tcl (which by definition cannot be dangerous
-as they run in the slave interpreter) and C extensions that
-provides a _SafeInit entry point). For that purpose, the master's 
-\fBauto_path\fR will be used to construct the slave access path. 
-In order that the slave successfully loads the Tcl library files
+as they run in the child interpreter) and C extensions that
+provides a _SafeInit entry point). For that purpose, the parent's
+\fBauto_path\fR will be used to construct the child access path.
+In order that the child successfully loads the Tcl library files
 (which includes the auto-loading mechanism itself) the \fBtcl_library\fR will be
-added or moved to the first position if necessary, in the 
-slave access path, so the slave
-\fBtcl_library\fR will be the same as the master's (its real
-path will still be invisible to the slave though). 
-In order that auto-loading works the same for the slave and
-the master in this by default case, the first-level
-sub directories of each directory in the master \fBauto_path\fR will
-also be added (if not already included) to the slave access path.
+added or moved to the first position if necessary, in the
+child access path, so the child
+\fBtcl_library\fR will be the same as the parent's (its real
+path will still be invisible to the child though).
+In order that auto-loading works the same for the child and
+the parent in this by default case, the first-level
+sub directories of each directory in the parent \fBauto_path\fR will
+also be added (if not already included) to the child access path.
 You can always specify a more
-restrictive path for which sub directories will never be searched by 
+restrictive path for which sub directories will never be searched by
 explicitly specifying your directory list with the \fB\-accessPath\fR flag
 instead of relying on this default mechanism.
 .PP
@@ -349,8 +412,155 @@ When the \fIaccessPath\fR is changed after the first creation or
 initialization (i.e. through \fBinterpConfigure -accessPath \fR\fIlist\fR),
 an \fBauto_reset\fR is automatically evaluated in the safe interpreter
 to synchronize its \fBauto_index\fR with the new token list.
+.SH TYPICAL USE
+In many cases, the properties of a Safe Base interpreter can be specified
+when the interpreter is created, and then left unchanged for the lifetime
+of the interpreter.
+.PP
+If you wish to use Safe Base interpreters with "Sync Mode" off, evaluate
+the command
+.RS
+.PP
+.CS
+ safe::setSyncMode 0
+.CE
+.RE
+.PP
+Use \fB::safe::interpCreate\fR or \fB::safe::interpInit\fR to create an
+interpreter with the properties that you require.  The simplest way is not
+to specify \fB\-accessPath\fR or \fB\-autoPath\fR, which means the safe
+interpreter will use the same paths as the parent interpreter.  However,
+if \fB\-accessPath\fR is specified, then \fB\-autoPath\fR must also be
+specified, or else it will be set to {}.
+.PP
+The value of \fB\-autoPath\fR will be that required to access tclIndex
+and pkgIndex.tcl files according to the same rules as an unsafe
+interpreter (see pkg_mkIndex(n) and library(n)).
+.PP
+With "Sync Mode" on, the option \fB\-autoPath\fR is undefined, and
+the Safe Base sets the child's ::auto_path to a tokenized form of the
+access path. In addition to the directories present if "Safe Mode" is off,
+the ::auto_path includes the numerous subdirectories and module paths
+that belong to the access path.
+.SH SYNC MODE
+Before Tcl version 9.0, the Safe Base kept each safe interpreter's
+::auto_path synchronized with a tokenized form of its access path.
+Limitations of Tcl 8.4 and earlier made this feature necessary.  This
+definition of ::auto_path did not conform its specification in library(n)
+and pkg_mkIndex(n), but nevertheless worked perfectly well for the discovery
+and loading of packages.  The introduction of Tcl modules in Tcl 8.5 added a
+large number of directories to the access path, and it is inconvenient to
+have these additional directories unnecessarily appended to the ::auto_path.
+.PP
+In order to preserve compatibility with existing code, this synchronization
+of the ::auto_path and access path ("Sync Mode" on) is still the default.
+However, the Safe Base offers the option of limiting the safe interpreter's
+::auto_path to the much shorter list of directories that is necessary for
+it to perform its function ("Sync Mode" off).  Use the command
+\fB::safe::setSyncMode\fR to choose the mode before creating any Safe
+Base interpreters.
+.PP
+In either mode, the most convenient way to initialize a safe interpreter is
+to call \fB::safe::interpCreate\fR or \fB::safe::interpInit\fR without the
+\fB\-accessPath\fR or \fB\-autoPath\fR options (or with the \fB\-accessPath\fR
+option set to the
+empty list), which will give the safe interpreter the same access as the
+parent interpreter to packages, modules, and autoloader files.  With
+"Sync Mode" off, the Safe Base will set the value of \fB\-autoPath\fR to the
+parent's ::auto_path, and will set the child's ::auto_path to a tokenized form
+of the parent's ::auto_path.
+.PP
+With "Sync Mode" off, if a value is specified for \fB\-autoPath\fR, even the
+empty list, in a call to \fB::safe::interpCreate\fR, \fB::safe::interpInit\fR,
+or \fB::safe::interpConfigure\fR, it will be tokenized and used as the safe
+interpreter's ::auto_path.  Any directories that do not also belong to the
+access path cannot be tokenized and will be silently ignored.  However, the
+value of \fB\-autoPath\fR will remain as specified, and will be used to
+re-tokenize the child's ::auto_path if \fB::safe::interpConfigure\fR is called
+to change the value of \fB\-accessPath\fR.
+.PP
+With "Sync Mode" off, if the access path is reset to the values in the
+parent interpreter by calling \fB::safe::interpConfigure\fR with arguments
+\fB\-accessPath\fR {}, then the ::auto_path will also be reset unless the
+argument \fB\-autoPath\fR is supplied to specify a different value.
+.PP
+With "Sync Mode" off, if a non-empty value of \fB\-accessPath\fR is supplied, the
+safe interpreter's ::auto_path will be set to {} (by
+\fB::safe::interpCreate\fR, \fB::safe::interpInit\fR) or left unchanged
+(by \fB::safe::interpConfigure\fR).  If the same command specifies a new
+value for \fB\-autoPath\fR, it will be applied after the \fB\-accessPath\fR
+argument has been processed.
+.PP
+Examples of use with "Sync Mode" off: any of these commands will set the
+::auto_path to a tokenized form of its value in the parent interpreter:
+.RS
+.PP
+.CS
+safe::interpCreate foo
+safe::interpCreate foo -accessPath {}
+safe::interpInit bar
+safe::interpInit bar -accessPath {}
+safe::interpConfigure foo -accessPath {}
+.CE
+.RE
+.PP
+Example of use with "Sync Mode" off: when initializing a safe interpreter
+with a non-empty access path, the ::auto_path will be set to {} unless its
+own value is also specified:
+.RS
+.PP
+.CS
+safe::interpCreate foo -accessPath {
+    /usr/local/TclHome/lib/tcl9.0
+    /usr/local/TclHome/lib/tcl9.0/http1.0
+    /usr/local/TclHome/lib/tcl9.0/opt0.4
+    /usr/local/TclHome/lib/tcl9.0/msgs
+    /usr/local/TclHome/lib/tcl9.0/encoding
+    /usr/local/TclHome/lib
+}
+
+# The child's ::auto_path must be given a suitable value:
+
+safe::interpConfigure foo -autoPath {
+    /usr/local/TclHome/lib/tcl9.0
+    /usr/local/TclHome/lib
+}
+
+# The two commands can be combined:
+
+safe::interpCreate foo -accessPath {
+    /usr/local/TclHome/lib/tcl9.0
+    /usr/local/TclHome/lib/tcl9.0/http1.0
+    /usr/local/TclHome/lib/tcl9.0/opt0.4
+    /usr/local/TclHome/lib/tcl9.0/msgs
+    /usr/local/TclHome/lib/tcl9.0/encoding
+    /usr/local/TclHome/lib
+} -autoPath {
+    /usr/local/TclHome/lib/tcl9.0
+    /usr/local/TclHome/lib
+}
+.CE
+.RE
+.PP
+Example of use with "Sync Mode" off: the command
+\fBsafe::interpAddToAccessPath\fR does not change the safe interpreter's
+::auto_path, and so any necessary change must be made by the script:
+.RS
+.PP
+.CS
+safe::interpAddToAccessPath foo /usr/local/TclHome/lib/extras/Img1.4.11
+
+lassign [safe::interpConfigure foo -autoPath] DUM childAutoPath
+lappend childAutoPath /usr/local/TclHome/lib/extras/Img1.4.11
+safe::interpConfigure foo -autoPath $childAutoPath
+.CE
+.RE
 .SH "SEE ALSO"
-interp(n), library(n), load(n), package(n), source(n), unknown(n)
+interp(n), library(n), load(n), package(n), pkg_mkIndex(n), source(n),
+tm(n), unknown(n)
 .SH KEYWORDS
-alias, auto\-loading, auto_mkindex, load, master interpreter, safe
-interpreter, slave interpreter, source
+alias, auto-loading, auto_mkindex, load, parent interpreter, safe
+interpreter, child interpreter, source
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/scan.n b/doc/scan.n
index 7a84499..9178a43 100644
--- a/doc/scan.n
+++ b/doc/scan.n
@@ -5,7 +5,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH scan n 8.4 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -37,7 +37,7 @@ performed.
 If the next character in \fIformat\fR is a blank or tab then it
 matches any number of white space characters in \fIstring\fR (including
 zero).
-Otherwise, if it is not a \fB%\fR character then it 
+Otherwise, if it is not a \fB%\fR character then it
 must match the next character of \fIstring\fR.
 When a \fB%\fR is encountered in \fIformat\fR, it indicates
 the start of a conversion specifier.
@@ -52,9 +52,10 @@ The fields that are present must appear in the order given above.
 When \fBscan\fR finds a conversion specifier in \fIformat\fR, it
 first skips any white-space characters in \fIstring\fR (unless the
 conversion character is \fB[\fR or \fBc\fR).
-Then it converts the next input characters according to the 
+Then it converts the next input characters according to the
 conversion specifier and stores the result in the variable given
 by the next argument to \fBscan\fR.
+.SS "OPTIONAL POSITIONAL SPECIFIER"
 .PP
 If the \fB%\fR is followed by a decimal number and a \fB$\fR, as in
 .QW \fB%2$d\fR ,
@@ -66,75 +67,70 @@ specifiers must be positional.  Every \fIvarName\fR on the argument
 list must correspond to exactly one conversion specifier or an error
 is generated, or in the inline case, any position can be specified
 at most once and the empty positions will be filled in with empty strings.
+.SS "OPTIONAL SIZE MODIFIER"
 .PP
-.VS 8.5
 The size modifier field is used only when scanning a substring into
 one of Tcl's integer values.  The size modifier field dictates the
 integer range acceptable to be stored in a variable, or, for the inline
 case, in a position in the result list.
-The syntactically valid values for the size modifier are \fBh\fR, \fBL\fR,
-\fBl\fR, and \fBll\fR.  The \fBh\fR size modifier value is equivalent
-to the absence of a size modifier in the the conversion specifier.
-Either one indicates the integer range to be stored is limited to
-the same range produced by the \fBint()\fR function of the \fBexpr\fR
-command.  The \fBL\fR size modifier is equivalent to the \fBl\fR size
-modifier. Either one indicates the integer range to be stored is
-limited to the same range produced by the \fBwide()\fR function of
-the \fBexpr\fR command.  The \fBll\fR size modifier indicates that
-the integer range to be stored is unlimited.
-.VE 8.5
+The syntactically valid values for the size modifier are \fBh\fR,
+\fBl\fR, \fBz\fR, \fBt\fR, \fBq\fR, \fBj\fR, \fBll\fR, and \fBL\fR.
+The \fBh\fR size modifier value is equivalent to the absence of a size
+modifier in the the conversion specifier.  Either one indicates the
+integer range to be stored is limited to the 32-bit range.  The \fBL\fR
+size modifier is equivalent to the \fBll\fR size modifier.  Either one
+indicates the integer range to be stored is unlimited.  The \fBl\fR (or
+\fBq\fR or \fBj\fR) size modifier indicates that the integer range to be
+stored is limited to the same range produced by the \fBwide()\fR function
+of the \fBexpr\fR command. The \fBz\fR and \fBt\fR modifiers indicate the
+integer range to be the same as for either \fBh\fR or \fBl\fR, depending
+on the value of the \fBpointerSize\fR element of the \fBtcl_platform\fR array.
+.SS "MANDATORY CONVERSION CHARACTER"
 .PP
 The following conversion characters are supported:
-.TP 10
-\fBd\fR
+.IP \fBd\fR
 The input substring must be a decimal integer.
 It is read in and the integer value is stored in the variable,
 truncated as required by the size modifier value.
-.TP 10
-\fBo\fR
-The input substring must be an octal integer. It is read in and the 
+.IP \fBo\fR
+The input substring must be an octal integer. It is read in and the
 integer value is stored in the variable,
 truncated as required by the size modifier value.
-.TP 10
-\fBx\fR or \fBX\fR
+.IP "\fBx\fR or \fBX\fR"
 The input substring must be a hexadecimal integer.
 It is read in and the integer value is stored in the variable,
 truncated as required by the size modifier value.
-.TP 10
-\fBu\fR
+.IP \fBb\fR
+The input substring must be a binary integer.
+It is read in and the integer value is stored in the variable,
+truncated as required by the size modifier value.
+.IP \fBu\fR
 The input substring must be a decimal integer.
 The integer value is truncated as required by the size modifier
 value, and the corresponding unsigned value for that truncated
 range is computed and stored in the variable as a decimal string.
-The conversion makes no sense without reference to a truncation range,
-so the size modifier \fBll\fR is not permitted in combination
-with conversion character \fBu\fR.
-.TP 10
-\fBi\fR 
-The input substring must be an integer.  The base (i.e. decimal, binary,
-octal, or hexadecimal) is determined in the same fashion as described in
-\fBexpr\fR.  The integer value is stored in the variable,
-truncated as required by the size modifier value.
-.TP 10
-\fBc\fR
-A single character is read in and its Unicode value is stored in 
+.IP \fBi\fR
+The input substring must be an integer.  The base (i.e. decimal,
+octal, or hexadecimal) is determined by the C convention (leading
+0 for octal; prefix 0x for hexadecimal).  The integer value is
+stored in the variable, truncated as required by the size modifier
+value.
+.IP \fBc\fR
+A single character is read in and its Unicode value is stored in
 the variable as an integer value.
 Initial white space is not skipped in this case, so the input
 substring may be a white-space character.
-.TP 10
-\fBs\fR
-The input substring consists of all the characters up to the next 
+.IP \fBs\fR
+The input substring consists of all the characters up to the next
 white-space character; the characters are copied to the variable.
-.TP 10
-\fBe\fR or \fBf\fR or \fBg\fR or \fBE\fR or \fBG\fR
-The input substring must be a floating-point number consisting 
+.IP "\fBe\fR or \fBf\fR or \fBg\fR or \fBE\fR or \fBG\fR"
+The input substring must be a floating-point number consisting
 of an optional sign, a string of decimal digits possibly
-containing a decimal point, and an optional exponent consisting 
-of an \fBe\fR or \fBE\fR followed by an optional sign and a string of 
+containing a decimal point, and an optional exponent consisting
+of an \fBe\fR or \fBE\fR followed by an optional sign and a string of
 decimal digits.
 It is read in and stored in the variable as a floating-point value.
-.TP 10
-\fB[\fIchars\fB]\fR
+.IP \fB[\fIchars\fB]\fR
 The input substring consists of one or more characters in \fIchars\fR.
 The matching string is stored in the variable.
 If the first character between the brackets is a \fB]\fR then
@@ -145,12 +141,11 @@ contains a sequence of the form \fIa\fB\-\fIb\fR then any
 character between \fIa\fR and \fIb\fR (inclusive) will match.
 If the first or last character between the brackets is a \fB\-\fR, then
 it is treated as part of \fIchars\fR rather than indicating a range.
-.TP 10
-\fB[^\fIchars\fB]\fR
+.IP \fB[^\fIchars\fB]\fR
 The input substring consists of one or more characters not in \fIchars\fR.
 The matching string is stored in the variable.
-If the character immediately following the \fB^\fR is a \fB]\fR then it is 
-treated as part of the set rather than the closing bracket for 
+If the character immediately following the \fB^\fR is a \fB]\fR then it is
+treated as part of the set rather than the closing bracket for
 the set.
 If \fIchars\fR
 contains a sequence of the form \fIa\fB\-\fIb\fR then any
@@ -158,19 +153,18 @@ character between \fIa\fR and \fIb\fR (inclusive) will be excluded
 from the set.
 If the first or last character between the brackets is a \fB\-\fR, then
 it is treated as part of \fIchars\fR rather than indicating a range value.
-.TP 10
-\fBn\fR
+.IP \fBn\fR
 No input is consumed from the input string.  Instead, the total number
 of characters scanned from the input string so far is stored in the variable.
-.LP
+.PP
 The number of characters read from the input for a conversion is the
 largest number that makes sense for that particular conversion (e.g.
-as many decimal digits as possible for \fB%d\fR, as 
+as many decimal digits as possible for \fB%d\fR, as
 many octal digits as possible for \fB%o\fR, and so on).
 The input substring for a given conversion terminates either when a
-white-space character is encountered or when the maximum substring 
+white-space character is encountered or when the maximum substring
 width has been reached, whichever comes first.
-If a \fB*\fR is present in the conversion specifier 
+If a \fB*\fR is present in the conversion specifier
 then no variable is assigned and the next scan argument is not consumed.
 .SH "DIFFERENCES FROM ANSI SSCANF"
 .PP
@@ -192,7 +186,9 @@ modifier has no \fBsscanf\fR counterpart.
 If the end of the input string is reached before any conversions have been
 performed and no variables are given, an empty string is returned.
 .SH EXAMPLES
+.PP
 Convert a UNICODE character to its numeric value:
+.PP
 .CS
 set char "x"
 set value [\fBscan\fR $char %c]
@@ -200,68 +196,70 @@ set value [\fBscan\fR $char %c]
 .PP
 Parse a simple color specification of the form \fI#RRGGBB\fR using
 hexadecimal conversions with substring sizes:
+.PP
 .CS
 set string "#08D03F"
 \fBscan\fR $string "#%2x%2x%2x" r g b
 .CE
 .PP
-Parse a \fIHH:MM\fR time string, noting that this avoids problems with
-octal numbers by forcing interpretation as decimals (if we did not
-care, we would use the \fB%i\fR conversion instead):
+Parse a \fIHH:MM\fR time string:
+.PP
 .CS
-set string "08:08"   ;# *Not* octal!
+set string "08:08"
 if {[\fBscan\fR $string "%d:%d" hours minutes] != 2} {
-   error "not a valid time string"
+    error "not a valid time string"
 }
 # We have to understand numeric ranges ourselves...
 if {$minutes < 0 || $minutes > 59} {
-   error "invalid number of minutes"
+    error "invalid number of minutes"
 }
 .CE
 .PP
 Break a string up into sequences of non-whitespace characters (note
 the use of the \fB%n\fR conversion so that we get skipping over
 leading whitespace correct):
+.PP
 .CS
 set string " a string {with braced words} + leading space "
 set words {}
 while {[\fBscan\fR $string %s%n word length] == 2} {
-   lappend words $word
-   set string [string range $string $length end]
+    lappend words $word
+    set string [string range $string $length end]
 }
 .CE
 .PP
 Parse a simple coordinate string, checking that it is complete by
 looking for the terminating character explicitly:
+.PP
 .CS
 set string "(5.2,-4e-2)"
 # Note that the spaces before the literal parts of
 # the scan pattern are significant, and that ")" is
 # the Unicode character \eu0029
 if {
-   [\fBscan\fR $string " (%f ,%f %c" x y last] != 3
-   || $last != 0x0029
+    [\fBscan\fR $string " (%f ,%f %c" x y last] != 3
+    || $last != 0x0029
 } then {
-   error "invalid coordinate string"
+    error "invalid coordinate string"
 }
 puts "X=$x, Y=$y"
 .CE
 .PP
-.VS 8.5
 An interactive session demonstrating the truncation of integer
 values determined by size modifiers:
+.PP
 .CS
-% set tcl_platform(wordSize)
-4
-% scan 20000000000000000000 %d
+\fI%\fR scan 20000000000000000000 %d
 2147483647
-% scan 20000000000000000000 %ld
+\fI%\fR scan 20000000000000000000 %ld
 9223372036854775807
-% scan 20000000000000000000 %lld
+\fI%\fR scan 20000000000000000000 %lld
 20000000000000000000
 .CE
-.VE 8.5
 .SH "SEE ALSO"
 format(n), sscanf(3)
 .SH KEYWORDS
 conversion specifier, parse, scan
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/seek.n b/doc/seek.n
index 9214f8e..5aa3439 100644
--- a/doc/seek.n
+++ b/doc/seek.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH seek n 8.1 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,74 +12,15 @@
 .SH NAME
 seek \- Change the access position for an open channel
 .SH SYNOPSIS
-\fBseek \fIchannelId offset \fR?\fIorigin\fR?
+\fBseek \fIchannel offset \fR?\fIorigin\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
-Changes the current access position for \fIchannelId\fR.
-.PP
-\fIChannelId\fR must be an identifier for an open channel such as a
-Tcl standard channel (\fBstdin\fR, \fBstdout\fR, or \fBstderr\fR),
-the return value from an invocation of \fBopen\fR or \fBsocket\fR, or
-the result of a channel creation command provided by a Tcl extension.
-.PP
-The \fIoffset\fR and \fIorigin\fR
-arguments specify the position at which the next read or write will occur
-for \fIchannelId\fR. \fIOffset\fR must be an integer (which may be
-negative) and \fIorigin\fR must be one of the following:
-.TP 10
-\fBstart\fR
-The new access position will be \fIoffset\fR bytes from the start
-of the underlying file or device.
-.TP 10
-\fBcurrent\fR
-The new access position will be \fIoffset\fR bytes from the current
-access position; a negative \fIoffset\fR moves the access position
-backwards in the underlying file or device.
-.TP 10
-\fBend\fR
-The new access position will be \fIoffset\fR bytes from the end of
-the file or device.  A negative \fIoffset\fR places the access position
-before the end of file, and a positive \fIoffset\fR places the access
-position after the end of file.
-.LP
-The \fIorigin\fR argument defaults to \fBstart\fR.
-.PP
-The command flushes all buffered output for the channel before the command
-returns, even if the channel is in nonblocking mode.
-It also discards any buffered and unread input.
-This command returns an empty string.
-An error occurs if this command is applied to channels whose underlying
-file or device does not support seeking.
-.PP
-Note that \fIoffset\fR values are byte offsets, not character
-offsets.  Both \fBseek\fR and \fBtell\fR operate in terms of bytes,
-not characters, unlike \fBread\fR.
-.SH EXAMPLES
-Read a file twice:
-.CS
-set f [open file.txt]
-set data1 [read $f]
-\fBseek\fR $f 0
-set data2 [read $f]
-close $f
-# $data1 == $data2 if the file wasn't updated
-.CE
-.PP
-Read the last 10 bytes from a file:
-.CS
-set f [open file.data]
-# This is guaranteed to work with binary data but
-# may fail with other encodings...
-fconfigure $f -translation binary
-\fBseek\fR $f -10 end
-set data [read $f 10]
-close $f
-.CE
-
+The \fBseek\fR command has been superceded by the \fBchan seek\fR
+command which supports the same syntax and options.
 .SH "SEE ALSO"
-file(n), open(n), close(n), gets(n), tell(n), Tcl_StandardChannels(3)
- 
-.SH KEYWORDS
-access position, file, seek
+chan(n)
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/self.n b/doc/self.n
new file mode 100644
index 0000000..e12eb29
--- /dev/null
+++ b/doc/self.n
@@ -0,0 +1,166 @@
+'\"
+'\" Copyright (c) 2007 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH self n 0.1 TclOO "TclOO Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+self \- method call internal introspection
+.SH SYNOPSIS
+.nf
+package require tcl::oo
+
+\fBself\fR ?\fIsubcommand\fR?
+.fi
+.BE
+.SH DESCRIPTION
+The \fBself\fR command, which should only be used from within the context of a
+call to a method (i.e. inside a method, constructor or destructor body) is
+used to allow the method to discover information about how it was called. It
+takes an argument, \fIsubcommand\fR, that tells it what sort of information is
+actually desired; if omitted the result will be the same as if \fBself
+object\fR was invoked. The supported subcommands are:
+.\" METHOD: call
+.TP
+\fBself call\fR
+.
+This returns a two-element list describing the method implementations used to
+implement the current call chain. The first element is the same as would be
+reported by \fBinfo object\fR \fBcall\fR for the current method (except that this
+also reports useful values from within constructors and destructors, whose
+names are reported as \fB<constructor>\fR and \fB<destructor>\fR
+respectively,
+.VS TIP500
+and for private methods, which are described as being \fBprivate\fR instead of
+being a \fBmethod\fR),
+.VE TIP500
+and the second element is an index into the first element's
+list that indicates which actual implementation is currently executing (the
+first implementation to execute is always at index 0).
+.\" METHOD: caller
+.TP
+\fBself caller\fR
+.
+When the method was invoked from inside another object method, this subcommand
+returns a three element list describing the containing object and method. The
+first element describes the declaring object or class of the method, the
+second element is the name of the object on which the containing method was
+invoked, and the third element is the name of the method (with the strings
+\fB<constructor>\fR and \fB<destructor>\fR indicating constructors and
+destructors respectively).
+.\" METHOD: class
+.TP
+\fBself class\fR
+.
+This returns the name of the class that the current method was defined within.
+Note that this will change as the chain of method implementations is traversed
+with \fBnext\fR, and that if the method was defined on an object then this
+will fail.
+.RS
+.PP
+If you want the class of the current object, you need to use this other
+construct:
+.PP
+.CS
+info object class [\fBself object\fR]
+.CE
+.RE
+.\" METHOD: filter
+.TP
+\fBself filter\fR
+.
+When invoked inside a filter, this subcommand returns a three element list
+describing the filter. The first element gives the name of the object or class
+that declared the filter (note that this may be different from the object or
+class that provided the implementation of the filter), the second element is
+either \fBobject\fR or \fBclass\fR depending on whether the declaring entity
+was an object or class, and the third element is the name of the filter.
+.\" METHOD: method
+.TP
+\fBself method\fR
+.
+This returns the name of the current method (with the strings
+\fB<constructor>\fR and \fB<destructor>\fR indicating constructors and
+destructors respectively).
+.\" METHOD: namespace
+.TP
+\fBself namespace\fR
+.
+This returns the name of the unique namespace of the object that the method
+was invoked upon.
+.\" METHOD: next
+.TP
+\fBself next\fR
+.
+When invoked from a method that is not at the end of a call chain (i.e. where
+the \fBnext\fR command will invoke an actual method implementation), this
+subcommand returns a two element list describing the next element in the
+method call chain; the first element is the name of the class or object that
+declares the next part of the call chain, and the second element is the name
+of the method (with the strings \fB<constructor>\fR and \fB<destructor>\fR
+indicating constructors and destructors respectively). If invoked from a
+method that is at the end of a call chain, this subcommand returns the empty
+string.
+.\" METHOD: object
+.TP
+\fBself object\fR
+.
+This returns the name of the object that the method was invoked upon.
+.\" METHOD: target
+.TP
+\fBself target\fR
+.
+When invoked inside a filter implementation, this subcommand returns a two
+element list describing the method being filtered. The first element will be
+the name of the declarer of the method, and the second element will be the
+actual name of the method.
+.SH EXAMPLES
+.PP
+This example shows basic use of \fBself\fR to provide information about the
+current object:
+.PP
+.CS
+oo::class create c {
+    method foo {} {
+        puts "this is the [\fBself\fR] object"
+    }
+}
+c create a
+c create b
+a foo                \fI\(-> prints "this is the ::a object"\fR
+b foo                \fI\(-> prints "this is the ::b object"\fR
+.CE
+.PP
+This demonstrates what a method call chain looks like, and how traversing
+along it changes the index into it:
+.PP
+.CS
+oo::class create c {
+    method x {} {
+        puts "Cls: [\fBself call\fR]"
+    }
+}
+c create a
+oo::objdefine a {
+    method x {} {
+        puts "Obj: [\fBself call\fR]"
+        next
+        puts "Obj: [\fBself call\fR]"
+    }
+}
+a x     \fI\(-> Obj: {{method x object method} {method x ::c method}} 0\fR
+        \fI\(-> Cls: {{method x object method} {method x ::c method}} 1\fR
+        \fI\(-> Obj: {{method x object method} {method x ::c method}} 0\fR
+.CE
+.SH "SEE ALSO"
+info(n), next(n)
+.SH KEYWORDS
+call, introspection, object
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/set.n b/doc/set.n
index 5e13713..ed1fc41 100644
--- a/doc/set.n
+++ b/doc/set.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH set n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -29,27 +29,31 @@ Otherwise \fIvarName\fR refers to a scalar variable.
 If \fIvarName\fR includes namespace qualifiers
 (in the array name if it refers to an array element), or if \fIvarName\fR
 is unqualified (does not include the names of any containing namespaces)
-but no procedure is active, 
+but no procedure is active,
 \fIvarName\fR refers to a namespace variable
 resolved according to the rules described under \fBNAME RESOLUTION\fR in
 the \fBnamespace\fR manual page.
 .PP
 If a procedure is active and \fIvarName\fR is unqualified, then
 \fIvarName\fR refers to a parameter or local variable of the procedure,
-unless \fIvarName\fR was declared to resolve differently through one of the 
+unless \fIvarName\fR was declared to resolve differently through one of the
 \fBglobal\fR, \fBvariable\fR or \fBupvar\fR commands.
 .SH EXAMPLES
+.PP
 Store a random number in the variable \fIr\fR:
+.PP
 .CS
 \fBset\fR r [expr {rand()}]
 .CE
 .PP
 Store a short message in an array element:
+.PP
 .CS
 \fBset\fR anAry(msg) "Hello, World!"
 .CE
 .PP
 Store a short message in an array element specified by a variable:
+.PP
 .CS
 \fBset\fR elemName "msg"
 \fBset\fR anAry($elemName) "Hello, World!"
@@ -58,6 +62,7 @@ Store a short message in an array element specified by a variable:
 Copy a value into the variable \fIout\fR from a variable whose name is
 stored in the \fIvbl\fR (note that it is often easier to use arrays in
 practice instead of doing double-dereferencing):
+.PP
 .CS
 \fBset\fR in0 "small random"
 \fBset\fR in1 "large random"
@@ -65,6 +70,11 @@ practice instead of doing double-dereferencing):
 \fBset\fR out [\fBset\fR $vbl]
 .CE
 .SH "SEE ALSO"
-expr(n), global(n), namespace(n), proc(n), trace(n), unset(n), upvar(n), variable(n)
+expr(n), global(n), namespace(n), proc(n), trace(n), unset(n), upvar(n),
+variable(n)
 .SH KEYWORDS
 read, write, variable
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/singleton.n b/doc/singleton.n
new file mode 100644
index 0000000..ce35593
--- /dev/null
+++ b/doc/singleton.n
@@ -0,0 +1,101 @@
+'\"
+'\" Copyright (c) 2018 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH singleton n 0.3 TclOO "TclOO Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+oo::singleton \- a class that does only allows one instance of itself
+.SH SYNOPSIS
+.nf
+package require tcl::oo
+
+\fBoo::singleton\fI method \fR?\fIarg ...\fR?
+.fi
+.SH "CLASS HIERARCHY"
+.nf
+\fBoo::object\fR
+   \(-> \fBoo::class\fR
+       \(-> \fBoo::singleton\fR
+.fi
+.BE
+.SH DESCRIPTION
+Singleton classes are classes that only permit at most one instance of
+themselves to exist. They unexport the \fBcreate\fR and
+\fBcreateWithNamespace\fR methods entirely, and override the \fBnew\fR method
+so that it only makes a new instance if there is no existing instance.  It is
+not recommended to inherit from a singleton class; singleton-ness is \fInot\fR
+inherited. It is not recommended that a singleton class's constructor take any
+arguments.
+.PP
+Instances have their\fB destroy\fR method overridden with a method that always
+returns an error in order to discourage destruction of the object, but
+destruction remains possible if strictly necessary (e.g., by destroying the
+class or using \fBrename\fR to delete it). They also have a (non-exported)
+\fB<cloned>\fR method defined on them that similarly always returns errors to
+make attempts to use the singleton instance with \fBoo::copy\fR fail.
+.SS CONSTRUCTOR
+The \fBoo::singleton\fR class does not define an explicit constructor; this
+means that it is effectively the same as the constructor of the
+\fBoo::class\fR class.
+.SS DESTRUCTOR
+The \fBoo::singleton\fR class does not define an explicit destructor;
+destroying an instance of it is just like destroying an ordinary class (and
+will destroy the singleton object).
+.SS "EXPORTED METHODS"
+.\" METHOD: new
+.TP
+\fIcls \fBnew \fR?\fIarg ...\fR?
+.
+This returns the current instance of the singleton class, if one exists, and
+creates a new instance only if there is no existing instance. The additional
+arguments, \fIarg ...\fR, are only used if a new instance is actually
+manufactured; that construction is via the \fBoo::class\fR class's \fBnew\fR
+method.
+.RS
+.PP
+This is an override of the behaviour of a superclass's method with an
+identical call signature to the superclass's implementation.
+.RE
+.SS "NON-EXPORTED METHODS"
+The \fBoo::singleton\fR class explicitly states that \fBcreate\fR and
+\fBcreateWithNamespace\fR are unexported; callers should not assume that they
+have control over either the name or the namespace name of the singleton
+instance.
+.SH EXAMPLE
+.PP
+This example demonstrates that there is only one instance even though the
+\fBnew\fR method is called three times.
+.PP
+.CS
+\fBoo::singleton\fR create Highlander {
+    method say {} {
+        puts "there can be only one"
+    }
+}
+
+set h1 [Highlander new]
+set h2 [Highlander new]
+if {$h1 eq $h2} {
+    puts "equal objects"    \fI\(-> prints "equal objects"\fR
+}
+set h3 [Highlander new]
+if {$h1 eq $h3} {
+    puts "equal objects"    \fI\(-> prints "equal objects"\fR
+}
+.CE
+.PP
+Note that the name of the instance of the singleton is not guaranteed to be
+anything in particular.
+.SH "SEE ALSO"
+oo::class(n)
+.SH KEYWORDS
+class, metaclass, object, single instance
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/socket.n b/doc/socket.n
index 7050429..623fac6 100644
--- a/doc/socket.n
+++ b/doc/socket.n
@@ -1,37 +1,35 @@
 '\"
 '\" Copyright (c) 1996 Sun Microsystems, Inc.
-'\" Copyright (c) 1998-1999 by Scriptics Corporation.
+'\" Copyright (c) 1998-1999 Scriptics Corporation.
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\"
-.TH socket n 8.0 Tcl "Tcl Built-In Commands"
+.TH socket n 8.6 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
 socket \- Open a TCP network connection
 .SH SYNOPSIS
-.sp
+.nf
 \fBsocket \fR?\fIoptions\fR? \fIhost port\fR
-.sp
 \fBsocket\fR \fB\-server \fIcommand\fR ?\fIoptions\fR? \fIport\fR
+.fi
 .BE
-
 .SH DESCRIPTION
 .PP
-This command opens a network socket and returns a channel
-identifier that may be used in future invocations of commands like
-\fBread\fR, \fBputs\fR and \fBflush\fR.
-At present only the TCP network protocol is supported;  future
-releases may include support for additional protocols.
-The \fBsocket\fR command may be used to open either the client or
-server side of a connection, depending on whether the \fB\-server\fR
-switch is specified.
+This command opens a network socket and returns a channel identifier
+that may be used in future invocations of commands like \fBread\fR,
+\fBputs\fR and \fBflush\fR.  At present only the TCP network protocol
+is supported over IPv4 and IPv6; future releases may include support
+for additional protocols.  The \fBsocket\fR command may be used to
+open either the client or server side of a connection, depending on
+whether the \fB\-server\fR switch is specified.
 .PP
 Note that the default encoding for \fIall\fR sockets is the system
 encoding, as returned by \fBencoding system\fR.  Most of the time, you
-will need to use \fBfconfigure\fR to alter this to something else,
+will need to use \fBchan configure\fR to alter this to something else,
 such as \fIutf\-8\fR (ideal for communicating with other Tcl
 processes) or \fIiso8859\-1\fR (useful for many network protocols,
 especially the older ones).
@@ -46,69 +44,112 @@ this port.  \fIPort\fR is an integer port number
 (or service name, where supported and understood by the host operating
 system) and \fIhost\fR
 is either a domain-style name such as \fBwww.tcl.tk\fR or
-a numerical IP address such as \fB127.0.0.1\fR.
+a numerical IPv4 or IPv6 address such as \fB127.0.0.1\fR or \fB2001:DB8::1\fR.
 Use \fIlocalhost\fR to refer to the host on which the command is invoked.
 .PP
 The following options may also be present before \fIhost\fR
 to specify additional information about the connection:
+.\" OPTION: -myaddr
 .TP
 \fB\-myaddr\fI addr\fR
+.
 \fIAddr\fR gives the domain-style name or numerical IP address of
 the client-side network interface to use for the connection.
 This option may be useful if the client machine has multiple network
 interfaces.  If the option is omitted then the client-side interface
 will be chosen by the system software.
+.\" OPTION: -myport
 .TP
 \fB\-myport\fI port\fR
+.
 \fIPort\fR specifies an integer port number (or service name, where
 supported and understood by the host operating system) to use for the
 client's
 side of the connection.  If this option is omitted, the client's
 port number will be chosen at random by the system software.
+.\" OPTION: -async
 .TP
 \fB\-async\fR
-The \fB\-async\fR option will cause the client socket to be connected
-asynchronously. This means that the socket will be created immediately but
-may not yet be connected to the server, when the call to \fBsocket\fR
-returns. When a \fBgets\fR or \fBflush\fR is done on the socket before the
-connection attempt succeeds or fails, if the socket is in blocking mode, the
-operation will wait until the connection is completed or fails. If the
-socket is in nonblocking mode and a \fBgets\fR or \fBflush\fR is done on
-the socket before the connection attempt succeeds or fails, the operation
-returns immediately and \fBfblocked\fR on the socket returns 1. Synchronous
-client sockets may be switched (after they have connected) to operating in
-asynchronous mode using:
+.
+This option will cause the client socket to be connected
+asynchronously. This means that the socket will be created immediately
+but may not yet be connected to the server, when the call to
+\fBsocket\fR returns.
 .RS
+.PP
+When a \fBgets\fR or \fBflush\fR is done on the socket before the
+connection attempt succeeds or fails, if the socket is in blocking
+mode, the operation will wait until the connection is completed or
+fails. If the socket is in nonblocking mode and a \fBgets\fR or
+\fBflush\fR is done on the socket before the connection attempt
+succeeds or fails, the operation returns immediately and
+\fBfblocked\fR on the socket returns 1. Synchronous client sockets may
+be switched (after they have connected) to operating in asynchronous
+mode using:
+.PP
 .CS
-\fBfconfigure \fIchan \fB\-blocking 0\fR
+\fBchan configure \fIchan \fB\-blocking 0\fR
 .CE
 .PP
-See the \fBfconfigure\fR command for more details.
+See the \fBchan configure\fR command for more details.
+.PP
+The Tcl event loop should be running while an asynchronous connection
+is in progress, because it may have to do several connection attempts
+in the background. Running the event loop also allows you to set up a
+writable channel event on the socket to get notified when the
+asynchronous connection has succeeded or failed. See the \fBvwait\fR
+and the \fBchan\fR commands for more details on the event loop and
+channel events.
+.PP
+The \fBchan configure\fR option \fB\-connecting\fR may be used to check
+if the connect is still running. To verify a successful connect, the
+option \fB\-error\fR may be checked when \fB\-connecting\fR returned 0.
+.PP
+Operation without the event queue requires at the moment calls to
+\fBchan configure\fR to advance the internal state machine.
 .RE
 .SH "SERVER SOCKETS"
 .PP
-If the \fB\-server\fR option is specified then the new socket
-will be a server for the port given by \fIport\fR (either an integer
-or a service name, where supported and understood by the host
-operating system; if \fIport\fR is zero, the operating system will
-allocate a free port to the server socket which may be discovered by
-using \fBfconfigure\fR to read the \fB\-sockname\fR option).
-Tcl will automatically accept connections to the given port.
+If the \fB\-server\fR option is specified then the new socket will be
+a server that listens on the given \fIport\fR (either an integer or a
+service name, where supported and understood by the host operating
+system; if \fIport\fR is zero, the operating system will allocate a
+free port to the server socket which may be discovered by using
+\fBchan configure\fR to read the \fB\-sockname\fR option). If the host
+supports both, IPv4 and IPv6, the socket will listen on both address
+families. Tcl will automatically accept connections to the given port.
 For each connection Tcl will create a new channel that may be used to
-communicate with the client.  Tcl then invokes \fIcommand\fR
-with three additional arguments: the name of the new channel, the
-address, in network address notation, of the client's host, and
-the client's port number.
+communicate with the client.  Tcl then invokes \fIcommand\fR (properly
+a command prefix list, see the \fBEXAMPLES\fR below) with three
+additional arguments: the name of the new channel, the address, in
+network address notation, of the client's host, and the client's port
+number.
 .PP
 The following additional option may also be specified before \fIport\fR:
+.\" OPTION: -myaddr
 .TP
 \fB\-myaddr\fI addr\fR
-\fIAddr\fR gives the domain-style name or numerical IP address of
-the server-side network interface to use for the connection.
-This option may be useful if the server machine has multiple network
-interfaces.  If the option is omitted then the server socket is bound
-to the special address INADDR_ANY so that it can accept connections from
-any interface.
+.
+\fIAddr\fR gives the domain-style name or numerical IP address of the
+server-side network interface to use for the connection.  This option
+may be useful if the server machine has multiple network interfaces.
+If the option is omitted then the server socket is bound to the
+wildcard address so that it can accept connections from any
+interface. If \fIaddr\fR is a domain name that resolves to multiple IP
+addresses that are available on the local machine, the socket will
+listen on all of them.
+.\" OPTION: -reuseaddr
+.TP
+\fB\-reuseaddr\fI boolean\fR
+.
+Tells the kernel whether to reuse the local address if there is no socket
+actively listening on it. This is the default on Windows.
+.\" OPTION: -reuseport
+.TP
+\fB\-reuseport\fI boolean\fR
+.
+Tells the kernel whether to allow the binding of multiple sockets to the same
+address and port.
 .PP
 Server channels cannot be used for input or output; their sole use is to
 accept new client connections. The channels created for each incoming
@@ -125,58 +166,106 @@ will be accepted.
 If \fIport\fR is specified as zero, the operating system will allocate
 an unused port for use as a server socket.  The port number actually
 allocated may be retrieved from the created server socket using the
-\fBfconfigure\fR command to retrieve the \fB\-sockname\fR option as
+\fBchan configure\fR command to retrieve the \fB\-sockname\fR option as
 described below.
 .SH "CONFIGURATION OPTIONS"
-The \fBfconfigure\fR command can be used to query several readonly
-configuration options for socket channels:
+.PP
+The \fBchan configure\fR command can be used to query several readonly
+configuration options for socket channels or in some cases to set
+alternative properties on socket channels:
+.\" OPTION: -error
 .TP
 \fB\-error\fR
+.
 This option gets the current error status of the given socket.  This
 is useful when you need to determine if an asynchronous connect
 operation succeeded.  If there was an error, the error message is
 returned.  If there was no error, an empty string is returned.
-
+.RS
+.PP
 Note that the error status is reset by the read operation; this mimics
 the underlying getsockopt(SO_ERROR) call.
+.RE
+.\" OPTION: -sockname
 .TP
 \fB\-sockname\fR
-This option returns a list of three elements, the address, the host name
-and the port number for the socket. If the host name cannot be computed,
-the second element is identical to the address, the first element of the
-list.
+.
+For client sockets (including the channels that get created when a
+client connects to a server socket) this option returns a list of
+three elements, the address, the host name and the port number for the
+socket. If the host name cannot be computed, the second element is
+identical to the address, the first element of the list.
+.RS
+.PP
+For server sockets this option returns a list of a multiple of three
+elements each group of which have the same meaning as described
+above. The list contains more than one group when the server socket
+was created without \fB\-myaddr\fR or with the argument to
+\fB\-myaddr\fR being a domain name that resolves multiple IP addresses
+that are local to the invoking host.
+.RE
+.\" OPTION: -peername
 .TP
 \fB\-peername\fR
+.
 This option is not supported by server sockets. For client and accepted
 sockets, this option returns a list of three elements; these are the
 address, the host name and the port to which the peer socket is connected
 or bound. If the host name cannot be computed, the second element of the
 list is identical to the address, its first element.
+.\" OPTION: -connecting
+.TP
+\fB\-connecting\fR
+.
+This option is not supported by server sockets. For client sockets, this
+option returns 1 if an asynchronous connect is still in progress, 0 otherwise.
+.\" OPTION: -keepalive
+.TP
+\fB\-keepalive\fR
+.
+This option sets or queries the TCP keepalive option on the socket as 1 if
+keepalive is turned on, 0 otherwise.
+.\" OPTION: -nodelay
+.TP
+\fB\-nodelay\fR
+.
+This option sets or queries the TCP nodelay option on the socket as 1 if
+nodelay is turned on, 0 otherwise.
 .PP
 .SH "EXAMPLES"
+.PP
 Here is a very simple time server:
+.PP
 .CS
-proc Server {channel clientaddr clientport} {
-   puts "Connection from $clientaddr registered"
-   puts $channel [clock format [clock seconds]]
-   close $channel
+proc Server {startTime channel clientaddr clientport} {
+    puts "Connection from $clientaddr registered"
+    set now [clock seconds]
+    puts $channel [clock format $now]
+    puts $channel "[expr {$now - $startTime}] since start"
+    close $channel
 }
 
-\fBsocket\fR -server Server 9900
+\fBsocket -server\fR [list Server [clock seconds]] 9900
 vwait forever
 .CE
 .PP
-And here is the corresponding client to talk to the server:
+And here is the corresponding client to talk to the server and extract
+some information:
+.PP
 .CS
 set server localhost
 set sockChan [\fBsocket\fR $server 9900]
-gets $sockChan line
+gets $sockChan line1
+gets $sockChan line2
 close $sockChan
-puts "The time on $server is $line"
+puts "The time on $server is $line1"
+puts "That is [lindex $line2 0]s since the server started"
 .CE
-
 .SH "SEE ALSO"
-fconfigure(n), flush(n), open(n), read(n)
-
+chan(n), flush(n), open(n), read(n)
 .SH KEYWORDS
-bind, channel, connection, domain name, host, network address, socket, tcp
+asynchronous I/O, bind, channel, connection, domain name, host,
+network address, socket, tcp
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/source.n b/doc/source.n
index d8eaa0c..d4d8332 100644
--- a/doc/source.n
+++ b/doc/source.n
@@ -5,7 +5,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH source n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -15,9 +15,7 @@ source \- Evaluate a file or resource as a Tcl script
 .SH SYNOPSIS
 \fBsource \fIfileName\fR
 .sp
-.VS 8.5
 \fBsource\fR \fB\-encoding \fIencodingName fileName\fR
-.VE 8.5
 .BE
 .SH DESCRIPTION
 .PP
@@ -39,33 +37,38 @@ allowing for files containing code and data segments (scripted documents).
 If you require a
 .QW ^Z
 in code for string comparison, you can use
-.QW \e032
-or
-.QW \eu001a ,
+.QW \ex1A ,
 which will be safely substituted by the Tcl interpreter into
 .QW ^Z .
 .PP
-A leading BOM (Byte order mark) contained in the file is ignored for unicode encodings (utf-8, unicode).
+A leading BOM (Byte order mark) contained in the file is ignored for
+unicode encodings (utf-8, utf-16, ucs-2).
 .PP
-.VS 8.5
 The \fB\-encoding\fR option is used to specify the encoding of
 the data stored in \fIfileName\fR.  When the \fB\-encoding\fR option
-is omitted, the system encoding is assumed.
-.VE 8.5
+is omitted, the utf-8 encoding is assumed.
 .SH EXAMPLE
+.PP
 Run the script in the file \fBfoo.tcl\fR and then the script in the
 file \fBbar.tcl\fR:
+.PP
 .CS
 \fBsource\fR foo.tcl
 \fBsource\fR bar.tcl
 .CE
+.PP
 Alternatively:
+.PP
 .CS
 foreach scriptFile {foo.tcl bar.tcl} {
-   \fBsource\fR $scriptFile
+    \fBsource\fR $scriptFile
 }
 .CE
 .SH "SEE ALSO"
 file(n), cd(n), encoding(n), info(n)
 .SH KEYWORDS
 file, script
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/split.n b/doc/split.n
index 70bf129..e977d7c 100644
--- a/doc/split.n
+++ b/doc/split.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH split n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,7 +14,6 @@ split \- Split a string into a proper Tcl list
 .SH SYNOPSIS
 \fBsplit \fIstring \fR?\fIsplitChars\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 Returns a list created by splitting \fIstring\fR at each character
@@ -29,34 +28,41 @@ If \fIsplitChars\fR is an empty string then each character of
 \fIstring\fR becomes a separate element of the result list.
 \fISplitChars\fR defaults to the standard white-space characters.
 .SH EXAMPLES
+.PP
 Divide up a USENET group name into its hierarchical components:
+.PP
 .CS
-\fBsplit\fR "comp.lang.tcl.announce" .
-      \fI\(-> comp lang tcl announce\fR
+\fBsplit\fR "comp.lang.tcl" .
+      \fI\(-> comp lang tcl\fR
 .CE
 .PP
 See how the \fBsplit\fR command splits on \fIevery\fR character in
 \fIsplitChars\fR, which can result in information loss if you are not
 careful:
+.PP
 .CS
 \fBsplit\fR "alpha beta gamma" "temp"
       \fI\(-> al {ha b} {} {a ga} {} a\fR
 .CE
 .PP
 Extract the list words from a string that is not a well-formed list:
+.PP
 .CS
 \fBsplit\fR "Example with {unbalanced brace character"
       \fI\(-> Example with \e{unbalanced brace character\fR
 .CE
 .PP
 Split a string into its constituent characters
+.PP
 .CS
 \fBsplit\fR "Hello world" {}
       \fI\(-> H e l l o { } w o r l d\fR
 .CE
 .SS "PARSING RECORD-ORIENTED FILES"
+.PP
 Parse a Unix /etc/passwd file, which consists of one entry per line,
 with each line consisting of a colon-separated list of fields:
+.PP
 .CS
 ## Read the file
 set fid [open /etc/passwd]
@@ -69,18 +75,19 @@ set records [\fBsplit\fR $content "\en"]
 ## Iterate over the records
 foreach rec $records {
 
-   ## Split into fields on colons
-   set fields [\fBsplit\fR $rec ":"]
+    ## Split into fields on colons
+    set fields [\fBsplit\fR $rec ":"]
 
-   ## Assign fields to variables and print some out...
-   lassign $fields \e
-         userName password uid grp longName homeDir shell
-   puts "$longName uses [file tail $shell] for a login shell"
+    ## Assign fields to variables and print some out...
+    lassign $fields \e
+            userName password uid grp longName homeDir shell
+    puts "$longName uses [file tail $shell] for a login shell"
 }
 .CE
-
 .SH "SEE ALSO"
 join(n), list(n), string(n)
-
 .SH KEYWORDS
 list, split, string
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/string.n b/doc/string.n
index d4e2833..a78a842 100644
--- a/doc/string.n
+++ b/doc/string.n
@@ -4,7 +4,7 @@
 .\"
 .\" See the file "license.terms" for information on usage and redistribution
 .\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-.\" 
+.\"
 .TH string n 8.1 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,15 +12,31 @@
 .SH NAME
 string \- Manipulate strings
 .SH SYNOPSIS
-\fBstring \fIoption arg \fR?\fIarg ...?\fR
+\fBstring \fIoption arg \fR?\fIarg ...\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 Performs one of several string operations, depending on \fIoption\fR.
 The legal \fIoption\fRs (which may be abbreviated) are:
+.\" METHOD: cat
+.TP
+\fBstring cat\fR ?\fIstring1\fR? ?\fIstring2...\fR?
+.
+Concatenate the given \fIstring\fRs just like placing them directly
+next to each other and return the resulting compound string.  If no
+\fIstring\fRs are present, the result is an empty string.
+.RS
+.PP
+This primitive is occasionally handier than juxtaposition of strings
+when mixed quoting is wanted, or when the aim is to return the result
+of a concatenation without resorting to \fBreturn\fR \fB\-level 0\fR,
+and is more efficient than building a list of arguments and using
+\fBjoin\fR with an empty join string.
+.RE
+.\" METHOD: compare
 .TP
-\fBstring compare\fR ?\fB\-nocase\fR? ?\fB\-length int\fR? \fIstring1 string2\fR
+\fBstring compare\fR ?\fB\-nocase\fR? ?\fB\-length\fI length\fR? \fIstring1 string2\fR
+.
 Perform a character-by-character comparison of strings \fIstring1\fR
 and \fIstring2\fR.  Returns \-1, 0, or 1, depending on whether
 \fIstring1\fR is lexicographically less than, equal to, or greater
@@ -28,90 +44,77 @@ than \fIstring2\fR.  If \fB\-length\fR is specified, then only the
 first \fIlength\fR characters are used in the comparison.  If
 \fB\-length\fR is negative, it is ignored.  If \fB\-nocase\fR is
 specified, then the strings are compared in a case-insensitive manner.
+.\" METHOD: equal
 .TP
-\fBstring equal\fR ?\fB\-nocase\fR? ?\fB\-length int\fR? \fIstring1 string2\fR
+\fBstring equal\fR ?\fB\-nocase\fR? ?\fB\-length\fI length\fR? \fIstring1 string2\fR
+.
 Perform a character-by-character comparison of strings \fIstring1\fR
 and \fIstring2\fR.  Returns 1 if \fIstring1\fR and \fIstring2\fR are
 identical, or 0 when not.  If \fB\-length\fR is specified, then only
 the first \fIlength\fR characters are used in the comparison.  If
 \fB\-length\fR is negative, it is ignored.  If \fB\-nocase\fR is
 specified, then the strings are compared in a case-insensitive manner.
+.\" METHOD: first
 .TP
 \fBstring first \fIneedleString haystackString\fR ?\fIstartIndex\fR?
+.
 Search \fIhaystackString\fR for a sequence of characters that exactly match
 the characters in \fIneedleString\fR.  If found, return the index of the
 first character in the first such match within \fIhaystackString\fR.  If not
 found, return \-1.  If \fIstartIndex\fR is specified (in any of the
-forms accepted by the \fBindex\fR method), then the search is
+forms described in \fBSTRING INDICES\fR), then the search is
 constrained to start with the character in \fIhaystackString\fR specified by
 the index.  For example,
 .RS
+.PP
 .CS
 \fBstring first a 0a23456789abcdef 5\fR
 .CE
+.PP
 will return \fB10\fR, but
+.PP
 .CS
 \fBstring first a 0123456789abcdef 11\fR
 .CE
+.PP
 will return \fB\-1\fR.
 .RE
+.\" METHOD: index
 .TP
 \fBstring index \fIstring charIndex\fR
+.
 Returns the \fIcharIndex\fR'th character of the \fIstring\fR argument.
 A \fIcharIndex\fR of 0 corresponds to the first character of the
-string.  \fIcharIndex\fR may be specified as follows:
-.VS 8.5
+string.  \fIcharIndex\fR may be specified as described in the
+\fBSTRING INDICES\fR section.
 .RS
-.IP \fIinteger\fR 10
-For any index value that passes \fBstring is integer -strict\fR,
-the char specified at this integral index
-(e.g. \fB2\fR would refer to the
-.QW c
-in
-.QW abcd ).
-.IP \fBend\fR 10
-The last char of the string
-(e.g. \fBend\fR would refer to the
-.QW d
-in
-.QW abcd ).
-.IP \fBend\fR\-\fIN\fR 10
-The last char of the string minus the specified integer offset \fIN\fR
-(e.g. \fBend\fR\-1 would refer to the
-.QW c
-in
-.QW abcd ).
-.IP \fBend\fR+\fIN\fR 10
-The last char of the string plus the specified integer offset \fIN\fR
-(e.g. \fBend\fR+\-1 would refer to the
-.QW c
-in
-.QW abcd ).
-.IP \fIM\fR+\fIN\fR 10
-The char specified at the integral index that is the sum of 
-integer values \fIM\fR and \fIN\fR
-(e.g. \fB1+1\fR would refer to the
-.QW c
-in
-.QW abcd ).
-.IP \fIM\fR\-\fIN\fR 10
-The char specified at the integral index that is the difference of 
-integer values \fIM\fR and \fIN\fR
-(e.g. \fB2\-1\fR would refer to the
-.QW b
-in
-.QW abcd ).
-.PP
-In the specifications above, the integer value \fIM\fR contains no
-trailing whitespace and the integer value \fIN\fR contains no
-leading whitespace.
 .PP
 If \fIcharIndex\fR is less than 0 or greater than or equal to the
 length of the string then this command returns an empty string.
 .RE
-.VE
+.\" METHOD: insert
+.TP
+\fBstring insert \fIstring index insertString\fR
+.VS TIP504
+Returns a copy of \fIstring\fR with \fIinsertString\fR inserted at the
+\fIindex\fR'th character.  The \fIindex\fR may be specified as described in the
+\fBSTRING INDICES\fR section.
+.RS
+.PP
+If \fIindex\fR is start-relative, the first character inserted in the returned
+string will be at the specified index.  If \fIindex\fR is end-relative, the last
+character inserted in the returned string will be at the specified index.
+.PP
+If \fIindex\fR is at or before the start of \fIstring\fR (e.g., \fIindex\fR is
+\fB0\fR), \fIinsertString\fR is prepended to \fIstring\fR.  If \fIindex\fR is at
+or after the end of \fIstring\fR (e.g., \fIindex\fR is \fBend\fR),
+\fIinsertString\fR is appended to \fIstring\fR.
+.RE
+.VE TIP504
+.\" METHOD: is
 .TP
 \fBstring is \fIclass\fR ?\fB\-strict\fR? ?\fB\-failindex \fIvarname\fR? \fIstring\fR
+.
 Returns 1 if \fIstring\fR is a valid member of the specified character
 class, otherwise returns 0.  If \fB\-strict\fR is specified, then an
 empty string returns 0, otherwise an empty string will return 1 on
@@ -132,20 +135,31 @@ Any character with a value less than \eu0080 (those that are in the
 Any of the forms allowed to \fBTcl_GetBoolean\fR.
 .IP \fBcontrol\fR 12
 Any Unicode control character.
+.IP \fBdict\fR 12
+.VS TIP501
+Any proper dict structure, with optional surrounding whitespace. In
+case of improper dict structure, 0 is returned and the \fIvarname\fR
+will contain the index of the
+.QW element
+where the dict parsing fails, or \-1 if this cannot be determined.
+.VE TIP501
 .IP \fBdigit\fR 12
 Any Unicode digit character.  Note that this includes characters
 outside of the [0\-9] range.
 .IP \fBdouble\fR 12
 Any of the forms allowed to \fBTcl_GetDoubleFromObj\fR.
+.IP \fBentier\fR 12
+.
+Synonym for \fBinteger\fR.
 .IP \fBfalse\fR 12
 Any of the forms allowed to \fBTcl_GetBoolean\fR where the value is
 false.
 .IP \fBgraph\fR 12
 Any Unicode printing character, except space.
 .IP \fBinteger\fR 12
-Any of the valid string formats for a 32-bit integer value in Tcl,
-with optional surrounding whitespace.  In case of overflow in
-the value, 0 is returned and the \fIvarname\fR will contain \-1.
+Any of the valid string formats for an integer value of arbitrary size
+in Tcl, with optional surrounding whitespace. The formats accepted are
+exactly those accepted by the C routine \fBTcl_GetBignumFromObj\fR.
 .IP \fBlist\fR 12
 Any proper list structure, with optional surrounding whitespace. In
 case of improper list structure, 0 is returned and the \fIvarname\fR
@@ -159,19 +173,18 @@ Any Unicode printing character, including space.
 .IP \fBpunct\fR 12
 Any Unicode punctuation character.
 .IP \fBspace\fR 12
-Any Unicode whitespace character or mongolian vowel separator (U+180e),
-but not NEL/Next Line (U+0085).
+Any Unicode whitespace character, mongolian vowel separator
+(U+180e), zero width space (U+200b), word joiner (U+2060) or
+zero width no-break space (U+feff) (=BOM).
 .IP \fBtrue\fR 12
 Any of the forms allowed to \fBTcl_GetBoolean\fR where the value is
 true.
 .IP \fBupper\fR 12
 Any upper case alphabet character in the Unicode character set.
-.VS 8.5
 .IP \fBwideinteger\fR 12
 Any of the valid forms for a wide integer in Tcl, with optional
 surrounding whitespace.  In case of overflow in the value, 0 is
 returned and the \fIvarname\fR will contain \-1.
-.VE 8.5
 .IP \fBwordchar\fR 12
 Any Unicode word character.  That is any alphanumeric character, and
 any Unicode connector punctuation characters (e.g. underscore).
@@ -182,34 +195,44 @@ In the case of \fBboolean\fR, \fBtrue\fR and \fBfalse\fR, if the
 function will return 0, then the \fIvarname\fR will always be set to
 0, due to the varied nature of a valid boolean value.
 .RE
+.\" METHOD: last
 .TP
 \fBstring last \fIneedleString haystackString\fR ?\fIlastIndex\fR?
+.
 Search \fIhaystackString\fR for a sequence of characters that exactly match
 the characters in \fIneedleString\fR.  If found, return the index of the
 first character in the last such match within \fIhaystackString\fR.  If there
 is no match, then return \-1.  If \fIlastIndex\fR is specified (in any
-of the forms accepted by the \fBindex\fR method), then only the
+of the forms described in \fBSTRING INDICES\fR), then only the
 characters in \fIhaystackString\fR at or before the specified \fIlastIndex\fR
 will be considered by the search.  For example,
 .RS
+.PP
 .CS
 \fBstring last a 0a23456789abcdef 15\fR
 .CE
+.PP
 will return \fB10\fR, but
+.PP
 .CS
 \fBstring last a 0a23456789abcdef 9\fR
 .CE
+.PP
 will return \fB1\fR.
 .RE
+.\" METHOD: length
 .TP
 \fBstring length \fIstring\fR
+.
 Returns a decimal string giving the number of characters in
 \fIstring\fR.  Note that this is not necessarily the same as the
-number of bytes used to store the string.  If the object is a
-ByteArray object (such as those returned from reading a binary encoded
-channel), then this will return the actual byte length of the object.
+number of bytes used to store the string.  If the value is a
+byte array value (such as those returned from reading a binary encoded
+channel), then this will return the actual byte length of the value.
+.\" METHOD: map
 .TP
 \fBstring map\fR ?\fB\-nocase\fR? \fImapping string\fR
+.
 Replaces substrings in \fIstring\fR based on the key-value pairs in
 \fImapping\fR.  \fImapping\fR is a list of \fIkey value key value ...\fR
 as in the form returned by \fBarray get\fR.  Each instance of a
@@ -221,21 +244,27 @@ appearing first in the list will be checked first, and so on.
 \fIstring\fR is only iterated over once, so earlier key replacements
 will have no affect for later key matches.  For example,
 .RS
+.PP
 .CS
 \fBstring map {abc 1 ab 2 a 3 1 0} 1abcaababcabababc\fR
 .CE
+.PP
 will return the string \fB01321221\fR.
 .PP
 Note that if an earlier \fIkey\fR is a prefix of a later one, it will
 completely mask the later one.  So if the previous example is
 reordered like this,
+.PP
 .CS
 \fBstring map {1 0 ab 2 a 3 abc 1} 1abcaababcabababc\fR
 .CE
+.PP
 it will return the string \fB02c322c222c\fR.
 .RE
+.\" METHOD: match
 .TP
-\fBstring match\fR ?\fB\-nocase\fR? \fIpattern\fR \fIstring\fR
+\fBstring match\fR ?\fB\-nocase\fR? \fIpattern string\fR
+.
 See if \fIpattern\fR matches \fIstring\fR; return 1 if it does, 0 if
 it does not.  If \fB\-nocase\fR is specified, then the pattern attempts
 to match against the string in a case insensitive manner.  For the two
@@ -267,117 +296,186 @@ Matches the single character \fIx\fR.  This provides a way of avoiding
 the special interpretation of the characters \fB*?[]\e\fR in
 \fIpattern\fR.
 .RE
+.\" METHOD: range
 .TP
 \fBstring range \fIstring first last\fR
+.
 Returns a range of consecutive characters from \fIstring\fR, starting
 with the character whose index is \fIfirst\fR and ending with the
-character whose index is \fIlast\fR. An index of 0 refers to the first
+character whose index is \fIlast\fR (using the forms described in
+\fBSTRING INDICES\fR). An index of \fB0\fR refers to the first
+character of the string; an index of \fBend\fR refers to last
 character of the string.  \fIfirst\fR and \fIlast\fR may be specified
 as for the \fBindex\fR method.  If \fIfirst\fR is less than zero then
 it is treated as if it were zero, and if \fIlast\fR is greater than or
 equal to the length of the string then it is treated as if it were
 \fBend\fR.  If \fIfirst\fR is greater than \fIlast\fR then an empty
 string is returned.
+.\" METHOD: repeat
 .TP
 \fBstring repeat \fIstring count\fR
-Returns \fIstring\fR repeated \fIcount\fR number of times.
+.
+Returns a string consisting of \fIstring\fR concatenated with itself
+\fIcount\fR times. If \fIcount\fR is 0, the empty string will be
+returned.
+.\" METHOD: replace
 .TP
 \fBstring replace \fIstring first last\fR ?\fInewstring\fR?
+.
 Removes a range of consecutive characters from \fIstring\fR, starting
 with the character whose index is \fIfirst\fR and ending with the
-character whose index is \fIlast\fR.  An index of 0 refers to the
+character whose index is \fIlast\fR (using the forms described in
+\fBSTRING INDICES\fR).  An index of 0 refers to the
 first character of the string.  \fIFirst\fR and \fIlast\fR may be
 specified as for the \fBindex\fR method.  If \fInewstring\fR is
 specified, then it is placed in the removed character range.  If
 \fIfirst\fR is less than zero then it is treated as if it were zero,
 and if \fIlast\fR is greater than or equal to the length of the string
-then it is treated as if it were \fBend\fR.  If \fIfirst\fR is greater
-than \fIlast\fR or the length of the initial string, or \fIlast\fR is
-less than 0, then the initial string is returned untouched.
-.VS 8.5
+then it is treated as if it were \fBend\fR.  The initial string is
+returned untouched, if \fIfirst\fR is greater than \fIlast\fR, or if
+\fIfirst\fR is equal to or greater than the length of the initial string,
+or \fIlast\fR is less than 0.
+.\" METHOD: reverse
 .TP
 \fBstring reverse \fIstring\fR
+.
 Returns a string that is the same length as \fIstring\fR but with its
 characters in the reverse order.
-.VE 8.5
+.\" METHOD: tolower
 .TP
 \fBstring tolower \fIstring\fR ?\fIfirst\fR? ?\fIlast\fR?
+.
 Returns a value equal to \fIstring\fR except that all upper (or title)
 case letters have been converted to lower case.  If \fIfirst\fR is
 specified, it refers to the first char index in the string to start
 modifying.  If \fIlast\fR is specified, it refers to the char index in
 the string to stop at (inclusive).  \fIfirst\fR and \fIlast\fR may be
-specified as for the \fBindex\fR method.
+specified using the forms described in \fBSTRING INDICES\fR.
+.\" METHOD: totitle
 .TP
 \fBstring totitle \fIstring\fR ?\fIfirst\fR? ?\fIlast\fR?
+.
 Returns a value equal to \fIstring\fR except that the first character
 in \fIstring\fR is converted to its Unicode title case variant (or
 upper case if there is no title case variant) and the rest of the
 string is converted to lower case.  If \fIfirst\fR is specified, it
 refers to the first char index in the string to start modifying.  If
 \fIlast\fR is specified, it refers to the char index in the string to
-stop at (inclusive).  \fIfirst\fR and \fIlast\fR may be specified as
-for the \fBindex\fR method.
+stop at (inclusive).  \fIfirst\fR and \fIlast\fR may be specified
+using the forms described in \fBSTRING INDICES\fR.
+.\" METHOD: toupper
 .TP
 \fBstring toupper \fIstring\fR ?\fIfirst\fR? ?\fIlast\fR?
+.
 Returns a value equal to \fIstring\fR except that all lower (or title)
 case letters have been converted to upper case.  If \fIfirst\fR is
 specified, it refers to the first char index in the string to start
 modifying.  If \fIlast\fR is specified, it refers to the char index in
 the string to stop at (inclusive).  \fIfirst\fR and \fIlast\fR may be
-specified as for the \fBindex\fR method.
+specified using the forms described in \fBSTRING INDICES\fR.
+.\" METHOD: trim
 .TP
 \fBstring trim \fIstring\fR ?\fIchars\fR?
+.
 Returns a value equal to \fIstring\fR except that any leading or
 trailing characters present in the string given by \fIchars\fR are removed.  If
-\fIchars\fR is not specified then white space is removed (spaces,
-tabs, newlines, and carriage returns).
+\fIchars\fR is not specified then white space is removed (any character
+for which \fBstring is space\fR returns 1, and "\e0").
+.\" METHOD: trimleft
 .TP
 \fBstring trimleft \fIstring\fR ?\fIchars\fR?
+.
 Returns a value equal to \fIstring\fR except that any leading
 characters present in the string given by \fIchars\fR are removed.  If
-\fIchars\fR is not specified then white space is removed (spaces,
-tabs, newlines, and carriage returns).
+\fIchars\fR is not specified then white space is removed (any character
+for which \fBstring is space\fR returns 1, and "\e0").
+.\" METHOD: trimright
 .TP
 \fBstring trimright \fIstring\fR ?\fIchars\fR?
+.
 Returns a value equal to \fIstring\fR except that any trailing
 characters present in the string given by \fIchars\fR are removed.  If
-\fIchars\fR is not specified then white space is removed (spaces,
-tabs, newlines, and carriage returns).
-.SH "OBSOLETE SUBCOMMANDS"
+\fIchars\fR is not specified then white space is removed (any character
+for which \fBstring is space\fR returns 1, and "\e0").
+.SS "OBSOLETE SUBCOMMANDS"
 .PP
 These subcommands are currently supported, but are likely to go away in a
 future release as their functionality is either virtually never used or highly
 misleading.
-.TP
-\fBstring bytelength \fIstring\fR
-Returns a decimal string giving the number of bytes used to represent
-\fIstring\fR in memory.  Because UTF\-8 uses one to three bytes to
-represent Unicode characters, the byte length will not be the same as
-the character length in general.  The cases where a script cares about
-the byte length are rare.  In almost all cases, you should use the
-\fBstring length\fR operation (including determining the length of a
-Tcl ByteArray object).  Refer to the \fBTcl_NumUtfChars\fR manual
-entry for more details on the UTF\-8 representation.
+.\" METHOD: wordend
 .TP
 \fBstring wordend \fIstring charIndex\fR
+.
 Returns the index of the character just after the last one in the word
 containing character \fIcharIndex\fR of \fIstring\fR.  \fIcharIndex\fR
-may be specified as for the \fBindex\fR method.  A word is
+may be specified using the forms in \fBSTRING INDICES\fR.  A word is
 considered to be any contiguous range of alphanumeric (Unicode letters
 or decimal digits) or underscore (Unicode connector punctuation)
 characters, or any single character other than these.
+.\" METHOD: wordstart
 .TP
 \fBstring wordstart \fIstring charIndex\fR
-Returns the index of the first character in the word containing
-character \fIcharIndex\fR of \fIstring\fR.  \fIcharIndex\fR may be
-specified as for the \fBindex\fR method.  A word is considered to be any
-contiguous range of alphanumeric (Unicode letters or decimal digits)
-or underscore (Unicode connector punctuation) characters, or any
-single character other than these.
+.
+Returns the index of the first character in the word containing character
+\fIcharIndex\fR of \fIstring\fR.  \fIcharIndex\fR may be specified using the
+forms in \fBSTRING INDICES\fR.  A word is considered to be any contiguous
+range of alphanumeric (Unicode letters or decimal digits) or underscore
+(Unicode connector punctuation) characters, or any single character other than
+these.
+.SH "STRING INDICES"
+.PP
+When referring to indices into a string (e.g., for \fBstring index\fR
+or \fBstring range\fR) the following formats are supported:
+.IP \fIinteger\fR 10
+For any index value that passes \fBstring is integer \-strict\fR,
+the char specified at this integral index (e.g., \fB2\fR would refer to the
+.QW c
+in
+.QW abcd ).
+.IP \fBend\fR 10
+The last char of the string (e.g., \fBend\fR would refer to the
+.QW d
+in
+.QW abcd ).
+.IP \fBend\-\fIN\fR 10
+The last char of the string minus the specified integer offset \fIN\fR (e.g.,
+.QW \fBend\-1\fR
+would refer to the
+.QW c
+in
+.QW abcd ).
+.IP \fBend+\fIN\fR 10
+The last char of the string plus the specified integer offset \fIN\fR (e.g.,
+.QW \fBend+\-1\fR
+would refer to the
+.QW c
+in
+.QW abcd ).
+.IP \fIM\fB+\fIN\fR 10
+The char specified at the integral index that is the sum of
+integer values \fIM\fR and \fIN\fR (e.g.,
+.QW \fB1+1\fR
+would refer to the
+.QW c
+in
+.QW abcd ).
+.IP \fIM\fB\-\fIN\fR 10
+The char specified at the integral index that is the difference of
+integer values \fIM\fR and \fIN\fR (e.g.,
+.QW \fB2\-1\fR
+would refer to the
+.QW b
+in
+.QW abcd ).
+.PP
+In the specifications above, the integer value \fIM\fR contains no
+trailing whitespace and the integer value \fIN\fR contains no
+leading whitespace.
 .SH EXAMPLE
+.PP
 Test if the string in the variable \fIstring\fR is a proper non-empty
 prefix of the string \fBfoobar\fR.
+.PP
 .CS
 set length [\fBstring length\fR $string]
 if {$length == 0} {
@@ -386,14 +484,11 @@ if {$length == 0} {
     set isPrefix [\fBstring equal\fR -length $length $string "foobar"]
 }
 .CE
-
 .SH "SEE ALSO"
 expr(n), list(n)
-
 .SH KEYWORDS
-case conversion, compare, index, match, pattern, string, word, equal,
-ctype, character, reverse
-
+case conversion, compare, index, integer value, match, pattern, string,
+word, equal, ctype, character, reverse
 .\" Local Variables:
 .\" mode: nroff
 .\" End:
diff --git a/doc/subst.n b/doc/subst.n
index 07f0933..4c9a519 100644
--- a/doc/subst.n
+++ b/doc/subst.n
@@ -5,7 +5,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH subst n 7.4 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -33,7 +33,7 @@ For example, if \fB\-nocommands\fR is specified, command substitution
 is not performed:  open and close brackets are treated as ordinary characters
 with no special interpretation.
 .PP
-Note that the substitution of one kind can include substitution of 
+Note that the substitution of one kind can include substitution of
 other kinds.  For example, even when the \fB\-novariables\fR option
 is specified, command substitution is performed without restriction.
 This means that any variable substitution necessary to complete the
@@ -62,19 +62,23 @@ itself will either return an error, or will complete successfully.
 When it performs its substitutions, \fIsubst\fR does not give any
 special treatment to double quotes or curly braces (except within
 command substitutions) so the script
+.PP
 .CS
 set a 44
 \fBsubst\fR {xyz {$a}}
 .CE
+.PP
 returns
 .QW "\fBxyz {44}\fR" ,
 not
 .QW "\fBxyz {$a}\fR"
 and the script
+.PP
 .CS
 set a "p\e} q \e{r"
 \fBsubst\fR {xyz {$a}}
 .CE
+.PP
 returns
 .QW "\fBxyz {p} q {r}\fR" ,
 not
@@ -82,10 +86,12 @@ not
 .PP
 When command substitution is performed, it includes any variable
 substitution necessary to evaluate the script.
+.PP
 .CS
 set a 44
 \fBsubst\fR -novariables {$a [format $a]}
 .CE
+.PP
 returns
 .QW "\fB$a 44\fR" ,
 not
@@ -93,11 +99,13 @@ not
 Similarly, when
 variable substitution is performed, it includes any command
 substitution necessary to retrieve the value of the variable.
+.PP
 .CS
 proc b {} {return c}
 array set a {c c [b] tricky}
 \fBsubst\fR -nocommands {[b] $a([b])}
 .CE
+.PP
 returns
 .QW "\fB[b] c\fR" ,
 not
@@ -107,34 +115,42 @@ The continue and break exceptions allow command substitutions to
 prevent substitution of the rest of the command substitution and the
 rest of \fIstring\fR respectively, giving script authors more options
 when processing text using \fIsubst\fR.  For example, the script
+.PP
 .CS
 \fBsubst\fR {abc,[break],def}
 .CE
+.PP
 returns
 .QW \fBabc,\fR ,
 not
 .QW \fBabc,,def\fR
 and the script
+.PP
 .CS
 \fBsubst\fR {abc,[continue;expr {1+2}],def}
 .CE
+.PP
 returns
 .QW \fBabc,,def\fR ,
 not
 .QW \fBabc,3,def\fR .
 .PP
 Other exceptional return codes substitute the returned value
+.PP
 .CS
 \fBsubst\fR {abc,[return foo;expr {1+2}],def}
 .CE
+.PP
 returns
 .QW \fBabc,foo,def\fR ,
 not
 .QW \fBabc,3,def\fR
 and
+.PP
 .CS
 \fBsubst\fR {abc,[return -code 10 foo;expr {1+2}],def}
 .CE
+.PP
 also returns
 .QW \fBabc,foo,def\fR ,
 not
@@ -142,4 +158,8 @@ not
 .SH "SEE ALSO"
 Tcl(n), eval(n), break(n), continue(n)
 .SH KEYWORDS
-backslash substitution, command substitution, variable substitution
+backslash substitution, command substitution, quoting, substitution,
+variable substitution
+.\" Local Variables:
+.\" mode: nroff
+.\" End:
diff --git a/doc/switch.n b/doc/switch.n
index 1c4dd74..61449a9 100644
--- a/doc/switch.n
+++ b/doc/switch.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH switch n 8.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -31,32 +31,38 @@ command returns an empty string.
 .PP
 If the initial arguments to \fBswitch\fR start with \fB\-\fR then
 they are treated as options
-.VS 8.5
 unless there are exactly two arguments to \fBswitch\fR (in which case the
 first must the \fIstring\fR and the second must be the
 \fIpattern\fR/\fIbody\fR list).
-.VE 8.5
 The following options are currently supported:
+.\" OPTION: -exact
 .TP 10
 \fB\-exact\fR
+.
 Use exact matching when comparing \fIstring\fR to a pattern.  This
 is the default.
+.\" OPTION: -glob
 .TP 10
 \fB\-glob\fR
+.
 When matching \fIstring\fR to the patterns, use glob-style matching
 (i.e. the same as implemented by the \fBstring match\fR command).
+.\" OPTION: -regexp
 .TP 10
 \fB\-regexp\fR
+.
 When matching \fIstring\fR to the patterns, use regular
 expression matching
 (as described in the \fBre_syntax\fR reference page).
-'\" Options defined by TIP#75
-.VS 8.5
+.\" OPTION: -nocase
 .TP 10
 \fB\-nocase\fR
+.
 Causes comparisons to be handled in a case-insensitive manner.
+.\" OPTION: -matchvar
 .TP 10
-\fB\-matchvar\fR \fIvarName\fR
+\fB\-matchvar\fI varName\fR
+.
 This option (only legal when \fB\-regexp\fR is also specified)
 specifies the name of a variable into which the list of matches
 found by the regular expression engine will be written.  The first
@@ -67,8 +73,10 @@ capturing parenthesis in the regular expression that matched, and so
 on.  When a \fBdefault\fR branch is taken, the variable will have the
 empty list written to it.  This option may be specified at the same
 time as the \fB\-indexvar\fR option.
+.\" OPTION: -indexvar
 .TP 10
-\fB\-indexvar\fR \fIvarName\fR
+\fB\-indexvar\fI varName\fR
+.
 This option (only legal when \fB\-regexp\fR is also specified)
 specifies the name of a variable into which the list of indices
 referring to matching substrings
@@ -83,15 +91,14 @@ capturing parenthesis in the regular expression that matched, and so
 on.  When a \fBdefault\fR branch is taken, the variable will have the
 empty list written to it.  This option may be specified at the same
 time as the \fB\-matchvar\fR option.
-.VE 8.5
+.\" OPTION: --
 .TP 10
 \fB\-\|\-\fR
+.
 Marks the end of options.  The argument following this one will
 be treated as \fIstring\fR even if it starts with a \fB\-\fR.
-.VS 8.5
 This is not required when the matching patterns and bodies are grouped
 together in a single argument.
-.VE 8.5
 .PP
 Two syntaxes are provided for the \fIpattern\fR and \fIbody\fR arguments.
 The first uses a separate argument for each of the patterns and commands;
@@ -122,58 +129,61 @@ Beware of how you place comments in \fBswitch\fR commands.  Comments
 should only be placed \fBinside\fR the execution body of one of the
 patterns, and not intermingled with the patterns.
 .SH "EXAMPLES"
+.PP
 The \fBswitch\fR command can match against variables and not just
 literals, as shown here (the result is \fI2\fR):
+.PP
 .CS
 set foo "abc"
-\fBswitch\fR abc a \- b {expr {1}} $foo {expr {2}} default {expr {3}}
+\fBswitch\fR abc a - b {expr {1}} $foo {expr {2}} default {expr {3}}
 .CE
 .PP
 Using glob matching and the fall-through body is an alternative to
 writing regular expressions with alternations, as can be seen here
 (this returns \fI1\fR):
+.PP
 .CS
-\fBswitch\fR \-glob aaab {
-   a*b     \-
-   b       {expr {1}}
-   a*      {expr {2}}
-   default {expr {3}}
+\fBswitch\fR -glob aaab {
+    a*b     -
+    b       {expr {1}}
+    a*      {expr {2}}
+    default {expr {3}}
 }
 .CE
 .PP
 Whenever nothing matches, the \fBdefault\fR clause (which must be
 last) is taken.  This example has a result of \fI3\fR:
+.PP
 .CS
 \fBswitch\fR xyz {
-   a \-
-   b {
-      # Correct Comment Placement
-      expr {1}
-   }
-   c {
-      expr {2}
-   }
-   default {
-      expr {3}
-   }
+    a -
+    b {
+        # Correct Comment Placement
+        expr {1}
+    }
+    c {
+        expr {2}
+    }
+    default {
+        expr {3}
+    }
 }
 .CE
 .PP
-.VS 8.5
 When matching against regular expressions, information about what
 exactly matched is easily obtained using the \fB\-matchvar\fR option:
+.PP
 .CS
-\fBswitch\fR \-regexp \-matchvar foo \-\- $bar {
-   a(b*)c {
-      puts "Found [string length [lindex $foo 1]] 'b's"
-   }
-   d(e*)f(g*)h {
-      puts "Found [string length [lindex $foo 1]] 'e's and\e
-            [string length [lindex $foo 2]] 'g's"
-   }
+\fBswitch\fR -regexp -matchvar foo -- $bar {
+    a(b*)c {
+        puts "Found [string length [lindex $foo 1]] 'b's"
+    }
+    d(e*)f(g*)h {
+        puts "Found [string length [lindex $foo 1]] 'e's and\e
+                [string length [lindex $foo 2]] 'g's"
+    }
 }
 .CE
-.VE 8.5
 .SH "SEE ALSO"
 for(n), if(n), regexp(n)
 .SH KEYWORDS
diff --git a/doc/tailcall.n b/doc/tailcall.n
new file mode 100644
index 0000000..24eb902
--- /dev/null
+++ b/doc/tailcall.n
@@ -0,0 +1,69 @@
+'\"
+'\" Copyright (c) 1993 The Regents of the University of California.
+'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH tailcall n 8.6 Tcl "Tcl Built-In Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+tailcall \- Replace the current procedure with another command
+.SH SYNOPSIS
+\fBtailcall \fIcommand\fR ?\fIarg ...\fR?
+.BE
+.SH DESCRIPTION
+.PP
+The \fBtailcall\fR command replaces the currently executing procedure, lambda
+application, or method with another command. The \fIcommand\fR, which will
+have \fIarg ...\fR passed as arguments if they are supplied, will be looked up
+in the current namespace context, not in the caller's. Apart from that
+difference in resolution, it is equivalent to:
+.PP
+.CS
+return [uplevel 1 [list \fIcommand\fR ?\fIarg ...\fR?]]
+.CE
+.PP
+This command may not be invoked from within an \fBuplevel\fR into a procedure
+or inside a \fBcatch\fR inside a procedure or lambda.
+'\" TODO: sort out the mess with the [try] command!
+.SH EXAMPLE
+.PP
+Compute the factorial of a number.
+.PP
+.CS
+proc factorial {n {accum 1}} {
+    if {$n < 2} {
+        return $accum
+    }
+    \fBtailcall\fR factorial [expr {$n - 1}] [expr {$accum * $n}]
+}
+.CE
+.PP
+Print the elements of a list with alternating lines having different
+indentations.
+.PP
+.CS
+proc printList {theList} {
+    if {[llength $theList]} {
+        puts "> [lindex $theList 0]"
+        \fBtailcall\fR printList2 [lrange $theList 1 end]
+    }
+}
+proc printList2 {theList} {
+    if {[llength $theList]} {
+        puts "< [lindex $theList 0]"
+        \fBtailcall\fR printList [lrange $theList 1 end]
+    }
+}
+.CE
+.SH "SEE ALSO"
+apply(n), proc(n), uplevel(n)
+.SH KEYWORDS
+call, recursion, tail recursion
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/tclsh.1 b/doc/tclsh.1
index d40ac55..1060fa2 100644
--- a/doc/tclsh.1
+++ b/doc/tclsh.1
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH tclsh 1 "" Tcl "Tcl Applications"
 .so man.macros
 .BS
@@ -12,9 +12,8 @@
 .SH NAME
 tclsh \- Simple shell containing Tcl interpreter
 .SH SYNOPSIS
-\fBtclsh\fR ?-encoding \fIname\fR? ?\fIfileName arg arg ...\fR?
+\fBtclsh\fR ?\fB\-encoding \fIname\fR? ?\fIfileName arg arg ...\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 \fBTclsh\fR is a shell-like application that reads Tcl commands
@@ -28,39 +27,33 @@ If there exists a file \fB.tclshrc\fR (or \fBtclshrc.tcl\fR on
 the Windows platforms) in the home directory of
 the user, interactive \fBtclsh\fR evaluates the file as a Tcl script
 just before reading the first command from standard input.
-
 .SH "SCRIPT FILES"
 .PP
-.VS 8.5
 If \fBtclsh\fR is invoked with arguments then the first few arguments
 specify the name of a script file, and, optionally, the encoding of
-the text data stored in that script file. 
-.VE 8.5
-Any additional arguments
+the text data stored in that script file. Any additional arguments
 are made available to the script as variables (see below).
 Instead of reading commands from standard input \fBtclsh\fR will
 read Tcl commands from the named file;  \fBtclsh\fR will exit
 when it reaches the end of the file.
 The end of the file may be marked either by the physical end of
 the medium, or by the character,
-.QW \e032
-.PQ \eu001a ", control-Z" .
+.PQ \ex1A ", control-Z" .
 If this character is present in the file, the \fBtclsh\fR application
 will read text up to but not including the character.  An application
 that requires this character in the file may safely encode it as
-.QW \e032 ,
-.QW \ex1a ,
-or
-.QW \eu001a ;
+.QW \ex1A ;
 or may generate it by use of commands such as \fBformat\fR or \fBbinary\fR.
 There is no automatic evaluation of \fB.tclshrc\fR when the name
 of a script file is presented on the \fBtclsh\fR command
 line, but the script file can always \fBsource\fR it if desired.
 .PP
 If you create a Tcl script in a file whose first line is
+.PP
 .CS
 \fB#!/usr/local/bin/tclsh\fR
 .CE
+.PP
 then you can invoke the script file directly from your shell if
 you mark the file as executable.
 This assumes that \fBtclsh\fR has been installed in the default
@@ -72,11 +65,13 @@ executable can be accessed with a short file name.
 .PP
 An even better approach is to start your script files with the
 following three lines:
+.PP
 .CS
 \fB#!/bin/sh
 # the next line restarts using tclsh \e
 exec tclsh "$0" ${1+"$@"}\fR
 .CE
+.PP
 This approach has three advantages over the approach in the previous
 paragraph.  First, the location of the \fBtclsh\fR binary does not have
 to be hard-wired into the script:  it can be anywhere in your shell
@@ -101,34 +96,55 @@ its version number as part of the name.  This has the advantage of
 allowing multiple versions of Tcl to exist on the same system at once,
 but also the disadvantage of making it harder to write scripts that
 start up uniformly across different versions of Tcl.
-
+.PP
+Alternatively, you can use /usr/bin/env to locate tclsh on the path,
+like this:
+.PP
+.CS
+\fB#!/usr/bin/env tclsh\fR
+.CE
+.PP
+That has the advantages of being succinct and simple, but the
+disadvantage of not being flexible in the face of varying names for
+the binary.
 .SH "VARIABLES"
 .PP
-\fBTclsh\fR sets the following Tcl variables:
+\fBTclsh\fR sets the following global Tcl variables in addition to those
+created by the Tcl library itself (such as \fBenv\fR, which maps
+environment variables such as \fBPATH\fR into Tcl):
+.\" VARIABLE: argc
 .TP 15
 \fBargc\fR
+.
 Contains a count of the number of \fIarg\fR arguments (0 if none),
 not including the name of the script file.
+.\" VARIABLE: argv
 .TP 15
 \fBargv\fR
+.
 Contains a Tcl list whose elements are the \fIarg\fR arguments,
 in order, or an empty string if there are no \fIarg\fR arguments.
+.\" VARIABLE: argv0
 .TP 15
 \fBargv0\fR
+.
 Contains \fIfileName\fR if it was specified.
 Otherwise, contains the name by which \fBtclsh\fR was invoked.
+.\" VARIABLE: tcl_interactive
 .TP 15
 \fBtcl_interactive\fR
+.
 Contains 1 if \fBtclsh\fR is running interactively (no
 \fIfileName\fR was specified and standard input is a terminal-like
 device), 0 otherwise.
-
 .SH PROMPTS
+.\" VARIABLE: tcl_prompt1
+.\" VARIABLE: tcl_prompt2
 .PP
 When \fBtclsh\fR is invoked interactively it normally prompts for each
 command with
 .QW "\fB% \fR" .
-You can change the prompt by setting the
+You can change the prompt by setting the global
 variables \fBtcl_prompt1\fR and \fBtcl_prompt2\fR.  If variable
 \fBtcl_prompt1\fR exists then it must consist of a Tcl script
 to output a prompt;  instead of outputting a prompt \fBtclsh\fR
@@ -137,13 +153,31 @@ The variable \fBtcl_prompt2\fR is used in a similar way when
 a newline is typed but the current command is not yet complete;
 if \fBtcl_prompt2\fR is not set then no prompt is output for
 incomplete commands.
-
 .SH "STANDARD CHANNELS"
 .PP
 See \fBTcl_StandardChannels\fR for more explanations.
+.SH "ZIPFS VIRTUAL FILE SYSTEM"
+.PP
+When a zipfile is concatenated to the end of a \fBtclsh\fR, on startup
+the contents of the zip archive will be mounted under a virtual file
+system (VFS). The root of that VFS can be retrieved using the \fBzipfs root\fR
+command. The zip archive is mounted under the \fBapp\fR directory within the
+VFS. If a file named \fBmain.tcl\fR is present in the top
+level directory of the zip archive, it will be sourced instead of
+tclsh's normal command line handing. If a top level directory \fBtcl_library\fR is
+present in the zip archive, it will become the directory loaded as
+env(TCL_LIBRARY). If a file named \fBmain.tcl\fR is present in the top
+level directory of the zip archive, it will be sourced instead of the
+shell's normal command line handling.
+.PP
+Only one zipfile can be concatenated to the end of executable image
+(tclsh, or wish). However, if multiple zipfiles are
+concatenated, only the last one is used.
 
-.SH "SEE ALSO"
-encoding(n), fconfigure(n), tclvars(n)
+This filesystem is read-only. Files cannot be added or modified within
+this mounted file system.  See zipfs(n) for complete details.
 
+.SH "SEE ALSO"
+auto_path(n), encoding(n), env(n), fconfigure(n), zipfs(n)
 .SH KEYWORDS
-argument, interpreter, prompt, script file, shell
+application, argument, interpreter, prompt, script file, shell, zipfs
diff --git a/doc/tcltest.n b/doc/tcltest.n
index b161a2b..7d7cd3c 100644
--- a/doc/tcltest.n
+++ b/doc/tcltest.n
@@ -58,7 +58,6 @@ tcltest \- Test harness support code and utilities
 \fBtcltest::verbose \fR?\fIlevel\fR?
 
 \fBtcltest::test \fIname description optionList\fR
-\fBtcltest::bytestring \fIstring\fR
 \fBtcltest::normalizeMsg \fImsg\fR
 \fBtcltest::normalizePath \fIpathVar\fR
 \fBtcltest::workingDirectory \fR?\fIdir\fR?
@@ -89,8 +88,9 @@ See \fBCREATING TEST SUITES WITH TCLTEST\fR below for an extended example
 of how to use the commands of \fBtcltest\fR to produce test suites
 for your Tcl-enabled code.
 .SH COMMANDS
+.\" COMMAND: test
 .TP
-\fBtest\fR \fIname description\fR ?\fI\-option value ...\fR?
+\fBtest\fI name description\fR ?\fI\-option value ...\fR?
 .
 Defines and possibly runs a test with the name \fIname\fR and
 description \fIdescription\fR.  The name and description of a test
@@ -104,17 +104,18 @@ See \fBTESTS\fR below for a complete description of the valid
 options and how they define a test.  The \fBtest\fR command
 returns an empty string.
 .TP
-\fBtest\fR \fIname description\fR ?\fIconstraints\fR? \fIbody result\fR
+\fBtest\fI name description\fR ?\fIconstraints\fR? \fIbody result\fR
 .
 This form of \fBtest\fR is provided to support test suites written
 for version 1 of the \fBtcltest\fR package, and also a simpler
 interface for a common usage.  It is the same as
-.QW "\fBtest\fR \fIname description\fB \-constraints \fIconstraints\fB \-body \fIbody\fB \-result \fIresult\fR" .
+.QW "\fBtest\fI name description\fB \-constraints \fIconstraints\fB \-body \fIbody\fB \-result \fIresult\fR" .
 All other options to \fBtest\fR
 take their default values.  When \fIconstraints\fR is omitted, this
 form of \fBtest\fR can be distinguished from the first because
 all \fIoption\fRs begin with
 .QW \- .
+.\" COMMAND: loadTestedCommands
 .TP
 \fBloadTestedCommands\fR
 .
@@ -124,8 +125,9 @@ Returns the result of that script evaluation, including any error
 raised by the script.  Use this command and the related
 configuration options to provide the commands to be tested to
 the interpreter running the test suite.
+.\" COMMAND: makeFile
 .TP
-\fBmakeFile\fR \fIcontents name\fR ?\fIdirectory\fR?
+\fBmakeFile\fI contents name\fR ?\fIdirectory\fR?
 .
 Creates a file named \fIname\fR relative to
 directory \fIdirectory\fR and write \fIcontents\fR
@@ -140,16 +142,18 @@ of \fBcleanupTests\fR, unless it is removed by
 \fIdirectory\fR is the directory \fBconfigure \-tmpdir\fR.
 Returns the full path of the file created.  Use this command
 to create any text file required by a test with contents as needed.
+.\" COMMAND: removeFile
 .TP
-\fBremoveFile\fR \fIname\fR ?\fIdirectory\fR?
+\fBremoveFile\fI name\fR ?\fIdirectory\fR?
 .
 Forces the file referenced by \fIname\fR to be removed.  This file name
 should be relative to \fIdirectory\fR.   The default value of
 \fIdirectory\fR is the directory \fBconfigure \-tmpdir\fR.
 Returns an empty string.  Use this command to delete files
 created by \fBmakeFile\fR.
+.\" COMMAND: makeDirectory
 .TP
-\fBmakeDirectory\fR \fIname\fR ?\fIdirectory\fR?
+\fBmakeDirectory\fI name\fR ?\fIdirectory\fR?
 .
 Creates a directory named \fIname\fR relative to directory \fIdirectory\fR.
 The directory will be removed by the next evaluation of \fBcleanupTests\fR,
@@ -158,8 +162,9 @@ The default value of \fIdirectory\fR is the directory
 \fBconfigure \-tmpdir\fR.
 Returns the full path of the directory created.  Use this command
 to create any directories that are required to exist by a test.
+.\" COMMAND: removeDirectory
 .TP
-\fBremoveDirectory\fR \fIname\fR ?\fIdirectory\fR?
+\fBremoveDirectory\fI name\fR ?\fIdirectory\fR?
 .
 Forces the directory referenced by \fIname\fR to be removed. This
 directory should be relative to \fIdirectory\fR.
@@ -167,8 +172,9 @@ The default value of \fIdirectory\fR is the directory
 \fBconfigure \-tmpdir\fR.
 Returns an empty string.  Use this command to delete any directories
 created by \fBmakeDirectory\fR.
+.\" COMMAND: viewFile
 .TP
-\fBviewFile\fR \fIfile\fR ?\fIdirectory\fR?
+\fBviewFile\fI file\fR ?\fIdirectory\fR?
 .
 Returns the contents of \fIfile\fR, except for any
 final newline, just as \fBread \-nonewline\fR would return.
@@ -180,6 +186,7 @@ by a test into the result of that test for matching against
 an expected result.  The contents of the file are read using
 the system encoding, so its usefulness is limited to text
 files.
+.\" COMMAND: cleanupTests
 .TP
 \fBcleanupTests\fR
 .
@@ -200,15 +207,17 @@ to \fBoutputChannel\fR.  This command also restores the original
 shell environment, as described by the global \fBenv\fR
 array. Returns an empty string.
 .RE
+.\" COMMAND: runAllTests
 .TP
 \fBrunAllTests\fR
 .
-This is a master command meant to run an entire suite of tests,
+This is a main command meant to run an entire suite of tests,
 spanning multiple files and/or directories, as governed by
 the configurable options of \fBtcltest\fR.  See \fBRUNNING ALL TESTS\fR
 below for a complete description of the many variations possible
 with \fBrunAllTests\fR.
 .SS "CONFIGURATION COMMANDS"
+.\" COMMAND: configure
 .TP
 \fBconfigure\fR
 .
@@ -238,6 +247,7 @@ then its value is taken as a list of arguments to pass to \fBconfigure\fR.
 This allows the default values of the configuration options to be
 set by the environment.
 .RE
+.\" COMMAND: customMatch
 .TP
 \fBcustomMatch \fImode script\fR
 .
@@ -252,11 +262,13 @@ is evaluated in the global namespace.
 The completed script is expected to return a boolean value indicating
 whether or not the results match.  The built-in matching modes of
 \fBtest\fR are \fBexact\fR, \fBglob\fR, and \fBregexp\fR.
+.\" COMMAND: testConstraint
 .TP
 \fBtestConstraint \fIconstraint\fR ?\fIboolean\fR?
 .
 Sets or returns the boolean value associated with the named \fIconstraint\fR.
 See \fBTEST CONSTRAINTS\fR below for more information.
+.\" COMMAND: interpreter
 .TP
 \fBinterpreter\fR ?\fIexecutableName\fR?
 .
@@ -265,6 +277,7 @@ Sets or returns the name of the executable to be \fBexec\fRed by
 \fBconfigure \-singleproc\fR is false.
 The default value for \fBinterpreter\fR is the name of the
 currently running program as returned by \fBinfo nameofexecutable\fR.
+.\" COMMAND: outputChannel
 .TP
 \fBoutputChannel\fR ?\fIchannelID\fR?
 .
@@ -272,6 +285,7 @@ Sets or returns the output channel ID.  This defaults to \fBstdout\fR.
 Any test that prints test related output should send
 that output to \fBoutputChannel\fR rather than letting
 that output default to \fBstdout\fR.
+.\" COMMAND: errorChannel
 .TP
 \fBerrorChannel\fR ?\fIchannelID\fR?
 .
@@ -280,6 +294,7 @@ Any test that prints error messages should send
 that output to \fBerrorChannel\fR rather than printing
 directly to \fBstderr\fR.
 .SS "SHORTCUT CONFIGURATION COMMANDS"
+.\" COMMAND: debug
 .TP
 \fBdebug\fR ?\fIlevel\fR?
 .
@@ -290,76 +305,91 @@ Same as
 .
 Same as
 .QW "\fBconfigure \-errfile\fR ?\fIfilename\fR?" .
+.\" COMMAND: limitConstraints
 .TP
 \fBlimitConstraints\fR ?\fIboolean\fR?
 .
 Same as
 .QW "\fBconfigure \-limitconstraints\fR ?\fIboolean\fR?" .
+.\" COMMAND: loadFile
 .TP
 \fBloadFile\fR ?\fIfilename\fR?
 .
 Same as
 .QW "\fBconfigure \-loadfile\fR ?\fIfilename\fR?" .
+.\" COMMAND: loadScript
 .TP
 \fBloadScript\fR ?\fIscript\fR?
 .
 Same as
 .QW "\fBconfigure \-load\fR ?\fIscript\fR?" .
+.\" COMMAND: match
 .TP
 \fBmatch\fR ?\fIpatternList\fR?
 .
 Same as
 .QW "\fBconfigure \-match\fR ?\fIpatternList\fR?" .
+.\" COMMAND: matchDirectories
 .TP
 \fBmatchDirectories\fR ?\fIpatternList\fR?
 .
 Same as
 .QW "\fBconfigure \-relateddir\fR ?\fIpatternList\fR?" .
+.\" COMMAND: matchFiles
 .TP
 \fBmatchFiles\fR ?\fIpatternList\fR?
 .
 Same as
 .QW "\fBconfigure \-file\fR ?\fIpatternList\fR?" .
+.\" COMMAND: outputFile
 .TP
 \fBoutputFile\fR ?\fIfilename\fR?
 .
 Same as
 .QW "\fBconfigure \-outfile\fR ?\fIfilename\fR?" .
+.\" COMMAND: preserveCore
 .TP
 \fBpreserveCore\fR ?\fIlevel\fR?
 .
 Same as
 .QW "\fBconfigure \-preservecore\fR ?\fIlevel\fR?" .
+.\" COMMAND: singleProcess
 .TP
 \fBsingleProcess\fR ?\fIboolean\fR?
 .
 Same as
 .QW "\fBconfigure \-singleproc\fR ?\fIboolean\fR?" .
+.\" COMMAND: skip
 .TP
 \fBskip\fR ?\fIpatternList\fR?
 .
 Same as
 .QW "\fBconfigure \-skip\fR ?\fIpatternList\fR?" .
+.\" COMMAND: skipDirectories
 .TP
 \fBskipDirectories\fR ?\fIpatternList\fR?
 .
 Same as
 .QW "\fBconfigure \-asidefromdir\fR ?\fIpatternList\fR?" .
+.\" COMMAND: skipFiles
 .TP
 \fBskipFiles\fR ?\fIpatternList\fR?
 .
 Same as
 .QW "\fBconfigure \-notfile\fR ?\fIpatternList\fR?" .
+.\" COMMAND: temporaryDirectory
 .TP
 \fBtemporaryDirectory\fR ?\fIdirectory\fR?
 .
 Same as
 .QW "\fBconfigure \-tmpdir\fR ?\fIdirectory\fR?" .
+.\" COMMAND: testsDirectory
 .TP
 \fBtestsDirectory\fR ?\fIdirectory\fR?
 .
 Same as
 .QW "\fBconfigure \-testdir\fR ?\fIdirectory\fR?" .
+.\" COMMAND: verbose
 .TP
 \fBverbose\fR ?\fIlevel\fR?
 .
@@ -372,7 +402,7 @@ alternatives provided by \fBtcltest\fR or \fBTcl\fR itself.  They
 are retained to support existing test suites, but should be avoided
 in new code.
 .TP
-\fBtest\fR \fIname description optionList\fR
+\fBtest\fI name description optionList\fR
 .
 This form of \fBtest\fR was provided to enable passing many
 options spanning several lines to \fBtest\fR as a single
@@ -396,6 +426,7 @@ If you insist on using this form, examine
 the source code of \fBtcltest\fR if you want to know the substitution
 details, or just enclose the third through last argument
 to \fBtest\fR in braces and hope for the best.
+.\" COMMAND: workingDirectory
 .TP
 \fBworkingDirectory\fR ?\fIdirectoryName\fR?
 .
@@ -403,6 +434,7 @@ Sets or returns the current working directory when the test suite is
 running.  The default value for workingDirectory is the directory in
 which the test suite was launched.  The Tcl commands \fBcd\fR and
 \fBpwd\fR are sufficient replacements.
+.\" COMMAND: normalizeMsg
 .TP
 \fBnormalizeMsg \fImsg\fR
 .
@@ -414,6 +446,7 @@ is rather imprecise.  Tcl offers plenty of string
 processing commands to modify strings as you wish, and
 \fBcustomMatch\fR allows flexible matching of actual and expected
 results.
+.\" COMMAND: normalizePath
 .TP
 \fBnormalizePath \fIpathVar\fR
 .
@@ -421,17 +454,6 @@ Resolves symlinks in a path, thus creating a path without internal
 redirection.  It is assumed that \fIpathVar\fR is absolute.
 \fIpathVar\fR is modified in place.  The Tcl command \fBfile normalize\fR
 is a sufficient replacement.
-.TP
-\fBbytestring \fIstring\fR
-.
-Construct a string that consists of the requested sequence of bytes,
-as opposed to a string of properly formed UTF-8 characters using the
-value supplied in \fIstring\fR.  This allows the tester to create
-denormalized or improperly formed strings to pass to C procedures that
-are supposed to accept strings with embedded NULL types and confirm
-that a string result has a certain pattern of bytes.  This is
-exactly equivalent to the Tcl command \fBencoding convertfrom\fR
-\fBidentity\fR.
 .SH TESTS
 .PP
 The \fBtest\fR command is the heart of the \fBtcltest\fR package.
@@ -445,7 +467,7 @@ also influence how \fBtest\fR operates.
 The valid options for \fBtest\fR are summarized:
 .PP
 .CS
-\fBtest\fR \fIname\fR \fIdescription\fR
+\fBtest\fI name description\fR
         ?\fB\-constraints \fIkeywordList|expression\fR?
         ?\fB\-setup \fIsetupScript\fR?
         ?\fB\-body \fItestScript\fR?
@@ -490,6 +512,7 @@ description for regression tests.  If the test case exists to reproduce
 a bug, include the bug ID in the description.
 .PP
 Valid attributes and associated values are:
+.\" OPTION: -constraints
 .TP
 \fB\-constraints \fIkeywordList\fR|\fIexpression\fR
 .
@@ -500,9 +523,12 @@ defined by a call to \fBtestConstraint\fR.  If any of the listed
 constraints is false or does not exist, the test is skipped.  If the
 \fB\-constraints\fR value is an expression, that expression
 is evaluated. If the expression evaluates to true, then the test is run.
+.RS
+.PP
 Note that the expression form of \fB\-constraints\fR may interfere with the
 operation of \fBconfigure \-constraints\fR and
 \fBconfigure \-limitconstraints\fR, and is not recommended.
+.PP
 Appropriate constraints should be added to any tests that should
 not always be run.  That is, conditional evaluation of a test
 should be accomplished by the \fB\-constraints\fR option, not by
@@ -512,6 +538,8 @@ the number skipped may change based on the testing environment.
 The default value is an empty list.
 See \fBTEST CONSTRAINTS\fR below for a list of built-in constraints
 and information on how to add your own constraints.
+.RE
+.\" OPTION: -setup
 .TP
 \fB\-setup \fIscript\fR
 .
@@ -519,6 +547,7 @@ The optional \fB\-setup\fR attribute indicates a \fIscript\fR that will be run
 before the script indicated by the \fB\-body\fR attribute.  If evaluation
 of \fIscript\fR raises an error, the test will fail.  The default value
 is an empty script.
+.\" OPTION: -body
 .TP
 \fB\-body \fIscript\fR
 .
@@ -528,6 +557,7 @@ If evaluation of \fIscript\fR raises an error, the test will fail
 (unless the \fB\-returnCodes\fR option is used to state that an error
 is expected).
 The default value is an empty script.
+.\" OPTION: -cleanup
 .TP
 \fB\-cleanup \fIscript\fR
 .
@@ -535,6 +565,7 @@ The optional \fB\-cleanup\fR attribute indicates a \fIscript\fR that will be
 run after the script indicated by the \fB\-body\fR attribute.
 If evaluation of \fIscript\fR raises an error, the test will fail.
 The default value is an empty script.
+.\" OPTION: -match
 .TP
 \fB\-match \fImode\fR
 .
@@ -543,12 +574,14 @@ The \fB\-match\fR attribute determines how expected answers supplied by
 values for \fImode\fR are \fBregexp\fR, \fBglob\fR, \fBexact\fR, and
 any value registered by a prior call to \fBcustomMatch\fR.  The default
 value is \fBexact\fR.
+.\" OPTION: -result
 .TP
 \fB\-result \fIexpectedValue\fR
 .
 The \fB\-result\fR attribute supplies the \fIexpectedValue\fR against which
 the return value from script will be compared. The default value is
 an empty string.
+.\" OPTION: -output
 .TP
 \fB\-output \fIexpectedValue\fR
 .
@@ -558,6 +591,7 @@ of the script(s) will be compared.  Note that only output printed using
 the global \fBputs\fR command is used for comparison.  If \fB\-output\fR is
 not specified, output sent to \fBstdout\fR and \fBoutputChannel\fR is not
 processed for comparison.
+.\" OPTION: -errorOutput
 .TP
 \fB\-errorOutput \fIexpectedValue\fR
 .
@@ -567,6 +601,7 @@ evaluation of the script(s) will be compared. Note that only output
 printed using the global \fBputs\fR command is used for comparison.  If
 \fB\-errorOutput\fR is not specified, output sent to \fBstderr\fR and
 \fBerrorChannel\fR is not processed for comparison.
+.\" OPTION: -returnCodes
 .TP
 \fB\-returnCodes \fIexpectedCodeList\fR
 .
@@ -578,6 +613,7 @@ return codes known to \fBreturn\fR, in both numeric and symbolic
 form, including extended return codes, are acceptable elements in
 the \fIexpectedCodeList\fR.  Default value is
 .QW "\fBok return\fR" .
+.\" OPTION: -errorCode
 .TP
 \fB\-errorCode \fIexpectedErrorCode\fR
 .
@@ -625,143 +661,91 @@ the test suite is being run on a Unix platform.
 .PP
 Each \fBtest\fR should include whatever \fB\-constraints\fR are
 required to constrain it to run only where appropriate.  Several
-constraints are pre-defined in the \fBtcltest\fR package, listed
+constraints are predefined in the \fBtcltest\fR package, listed
 below.  The registration of user-defined constraints is performed
 by the \fBtestConstraint\fR command.  User-defined constraints
 may appear within a test file, or within the script specified
 by the \fBconfigure \-load\fR or \fBconfigure \-loadfile\fR
 options.
 .PP
-The following is a list of constraints pre-defined by the
+The following is a list of constraints predefined by the
 \fBtcltest\fR package itself:
-.TP
-\fIsingleTestInterp\fR
-.
+.IP \fIsingleTestInterp\fR
 This test can only be run if all test files are sourced into a single
 interpreter.
-.TP
-\fIunix\fR
-.
+.IP \fIunix\fR
 This test can only be run on any Unix platform.
-.TP
-\fIwin\fR
-.
+.IP \fIwin\fR
 This test can only be run on any Windows platform.
-.TP
-\fInt\fR
-.
+.IP \fInt\fR
 This test can only be run on any Windows NT platform.
-.TP
-\fImac\fR
-.
+.IP \fImac\fR
 This test can only be run on any Mac platform.
-.TP
-\fIunixOrWin\fR
-.
+.IP \fIunixOrWin\fR
 This test can only be run on a Unix or Windows platform.
-.TP
-\fImacOrWin\fR
-.
+.IP \fImacOrWin\fR
 This test can only be run on a Mac or Windows platform.
-.TP
-\fImacOrUnix\fR
-.
+.IP \fImacOrUnix\fR
 This test can only be run on a Mac or Unix platform.
-.TP
-\fItempNotWin\fR
-.
+.IP \fItempNotWin\fR
 This test can not be run on Windows.  This flag is used to temporarily
 disable a test.
-.TP
-\fItempNotMac\fR
-.
+.IP \fItempNotMac\fR
 This test can not be run on a Mac.  This flag is used
 to temporarily disable a test.
-.TP
-\fIunixCrash\fR
-.
+.IP \fIunixCrash\fR
 This test crashes if it is run on Unix.  This flag is used to temporarily
 disable a test.
-.TP
-\fIwinCrash\fR
-.
+.IP \fIwinCrash\fR
 This test crashes if it is run on Windows.  This flag is used to temporarily
 disable a test.
-.TP
-\fImacCrash\fR
-.
+.IP \fImacCrash\fR
 This test crashes if it is run on a Mac.  This flag is used to temporarily
 disable a test.
-.TP
-\fIemptyTest\fR
-.
+.IP \fIemptyTest\fR
 This test is empty, and so not worth running, but it remains as a
 place-holder for a test to be written in the future.  This constraint
 has value false to cause tests to be skipped unless the user specifies
 otherwise.
-.TP
-\fIknownBug\fR
-.
+.IP \fIknownBug\fR
 This test is known to fail and the bug is not yet fixed.  This constraint
 has value false to cause tests to be skipped unless the user specifies
 otherwise.
-.TP
-\fInonPortable\fR
-.
+.IP \fInonPortable\fR
 This test can only be run in some known development environment.
 Some tests are inherently non-portable because they depend on things
 like word length, file system configuration, window manager, etc.
 This constraint has value false to cause tests to be skipped unless
 the user specifies otherwise.
-.TP
-\fIuserInteraction\fR
-.
+.IP \fIuserInteraction\fR
 This test requires interaction from the user.  This constraint has
 value false to causes tests to be skipped unless the user specifies
 otherwise.
-.TP
-\fIinteractive\fR
-.
+.IP \fIinteractive\fR
 This test can only be run in if the interpreter is in interactive mode
-(when the global tcl_interactive variable is set to 1).
-.TP
-\fInonBlockFiles\fR
-.
+(when the global \fB::tcl_interactive\fR variable is set to 1).
+.IP \fInonBlockFiles\fR
 This test can only be run if platform supports setting files into
 nonblocking mode.
-.TP
-\fIasyncPipeClose\fR
-.
+.IP \fIasyncPipeClose\fR
 This test can only be run if platform supports async flush and async close
 on a pipe.
-.TP
-\fIunixExecs\fR
-.
+.IP \fIunixExecs\fR
 This test can only be run if this machine has Unix-style commands
 \fBcat\fR, \fBecho\fR, \fBsh\fR, \fBwc\fR, \fBrm\fR, \fBsleep\fR,
 \fBfgrep\fR, \fBps\fR, \fBchmod\fR, and \fBmkdir\fR available.
-.TP
-\fIhasIsoLocale\fR
-.
+.IP \fIhasIsoLocale\fR
 This test can only be run if can switch to an ISO locale.
-.TP
-\fIroot\fR
-.
+.IP \fIroot\fR
 This test can only run if Unix user is root.
-.TP
-\fInotRoot\fR
-.
+.IP \fInotRoot\fR
 This test can only run if Unix user is not root.
-.TP
-\fIeformat\fR
-.
+.IP \fIeformat\fR
 This test can only run if app has a working version of sprintf with respect
 to the
 .QW e
 format of floating-point numbers.
-.TP
-\fIstdio\fR
-.
+.IP \fIstdio\fR
 This test can only be run if \fBinterpreter\fR can be \fBopen\fRed
 as a pipe.
 .PP
@@ -804,17 +788,17 @@ then a copy of \fBinterpreter\fR will be \fBexec\fR'd to
 evaluate each file.  The multi-process operation is useful
 when testing can cause errors so severe that a process
 terminates.  Although such an error may terminate a child
-process evaluating one file, the master process can continue
+process evaluating one file, the main process can continue
 with the rest of the test suite.  In multi-process operation,
-the configuration of \fBtcltest\fR in the master process is
+the configuration of \fBtcltest\fR in the main process is
 passed to the child processes as command line arguments,
 with the exception of \fBconfigure \-outfile\fR.  The
 \fBrunAllTests\fR command in the
-master process collects all output from the child processes
-and collates their results into one master report.  Any
+main process collects all output from the child processes
+and collates their results into one main report.  Any
 reports of individual test failures, or messages requested
 by a \fBconfigure \-verbose\fR setting are passed directly
-on to \fBoutputChannel\fR by the master process.
+on to \fBoutputChannel\fR by the main process.
 .PP
 After evaluating all selected test files, a summary of the
 results is printed to \fBoutputChannel\fR.  The summary
@@ -846,12 +830,14 @@ command.
 .SH "CONFIGURABLE OPTIONS"
 The \fBconfigure\fR command is used to set and query the configurable
 options of \fBtcltest\fR.  The valid options are:
+.\" OPTION: -singleproc
 .TP
 \fB\-singleproc \fIboolean\fR
 .
 Controls whether or not \fBrunAllTests\fR spawns a child process for
 each test file.  No spawning when \fIboolean\fR is true.  Default
 value is false.
+.\" OPTION: -debug
 .TP
 \fB\-debug \fIlevel\fR
 .
@@ -877,6 +863,7 @@ that exist in the current namespace as they are used.
 Display information regarding what individual procs in the test
 harness are doing.
 .RE
+.\" OPTION: -verbose
 .TP
 \fB\-verbose \fIlevel\fR
 .
@@ -906,7 +893,7 @@ Print each test's execution time in milliseconds
 Print each test's execution time in microseconds
 .PP
 Note that the \fBmsec\fR and \fBusec\fR verbosity levels are provided as
-indicative measures only. They do not tackle the problem of repeatibility which
+indicative measures only. They do not tackle the problem of repeatability which
 should be considered in performance tests or benchmarks. To use these verbosity
 levels to thoroughly track performance degradations, consider wrapping your
 test bodies with \fBtime\fR commands.
@@ -917,6 +904,7 @@ so that
 is the same as
 .QW "\fBconfigure \-verbose {pass start}\fR" .
 .RE
+.\" OPTION: -preservecore
 .TP
 \fB\-preservecore \fIlevel\fR
 .
@@ -934,11 +922,13 @@ Also check for core files at the end of each \fBtest\fR command.
 Check for core files at all times described above, and save a
 copy of each core file produced in \fBconfigure \-tmpdir\fR.
 .RE
+.\" OPTION: -limitconstraints
 .TP
 \fB\-limitconstraints \fIboolean\fR
 .
 Sets the mode by which \fBtest\fR honors constraints as described
 in \fBTESTS\fR above.  Default value is false.
+.\" OPTION: -constraints
 .TP
 \fB\-constraints \fIlist\fR
 .
@@ -946,6 +936,7 @@ Sets all the constraints in \fIlist\fR to true.  Also used in
 combination with \fBconfigure \-limitconstraints true\fR to control an
 alternative constraint mode as described in \fBTESTS\fR above.
 Default value is an empty list.
+.\" OPTION: -tmpdir
 .TP
 \fB\-tmpdir \fIdirectory\fR
 .
@@ -954,17 +945,20 @@ Sets the temporary directory to be used by \fBmakeFile\fR,
 and \fBremoveDirectory\fR as the default directory where
 temporary files and directories created by test files should
 be created.  Default value is \fBworkingDirectory\fR.
+.\" OPTION: -testdir
 .TP
 \fB\-testdir \fIdirectory\fR
 .
 Sets the directory searched by \fBrunAllTests\fR for test files
 and subdirectories.  Default value is \fBworkingDirectory\fR.
+.\" OPTION: -file
 .TP
 \fB\-file \fIpatternList\fR
 .
 Sets the list of patterns used by \fBrunAllTests\fR to determine
 what test files to evaluate.  Default value is
 .QW \fB*.test\fR .
+.\" OPTION: -notfile
 .TP
 \fB\-notfile \fIpatternList\fR
 .
@@ -972,6 +966,7 @@ Sets the list of patterns used by \fBrunAllTests\fR to determine
 what test files to skip.  Default value is
 .QW \fBl.*.test\fR ,
 so that any SCCS lock files are skipped.
+.\" OPTION: -relateddir
 .TP
 \fB\-relateddir \fIpatternList\fR
 .
@@ -979,40 +974,47 @@ Sets the list of patterns used by \fBrunAllTests\fR to determine
 what subdirectories to search for an \fBall.tcl\fR file.  Default
 value is
 .QW \fB*\fR .
+.\" OPTION: -asidefromdir
 .TP
 \fB\-asidefromdir \fIpatternList\fR
 .
 Sets the list of patterns used by \fBrunAllTests\fR to determine
 what subdirectories to skip when searching for an \fBall.tcl\fR file.
 Default value is an empty list.
+.\" OPTION: -match
 .TP
 \fB\-match \fIpatternList\fR
 .
 Set the list of patterns used by \fBtest\fR to determine whether
 a test should be run.  Default value is
 .QW \fB*\fR .
+.\" OPTION: -skip
 .TP
 \fB\-skip \fIpatternList\fR
 .
 Set the list of patterns used by \fBtest\fR to determine whether
 a test should be skipped.  Default value is an empty list.
+.\" OPTION: -load
 .TP
 \fB\-load \fIscript\fR
 .
 Sets a script to be evaluated by \fBloadTestedCommands\fR.
 Default value is an empty script.
+.\" OPTION: -loadfile
 .TP
 \fB\-loadfile \fIfilename\fR
 .
 Sets the filename from which to read a script to be evaluated
 by \fBloadTestedCommands\fR.  This is an alternative to
 \fB\-load\fR.  They cannot be used together.
+.\" OPTION: -outfile
 .TP
 \fB\-outfile \fIfilename\fR
 .
 Sets the file to which all output produced by tcltest should be
 written.  A file named \fIfilename\fR will be \fBopen\fRed for writing,
 and the resulting channel will be set as the value of \fBoutputChannel\fR.
+.\" OPTION: -errfile
 .TP
 \fB\-errfile \fIfilename\fR
 .
@@ -1134,7 +1136,7 @@ A good namespace to use is a child namespace \fBtest\fR of the namespace
 of the module you are testing.
 .PP
 A test file should also be able to be evaluated directly as a script,
-not depending on being called by a master \fBrunAllTests\fR.  This
+not depending on being called by a main \fBrunAllTests\fR.  This
 means that each test file should process command line arguments to give
 the tester all the configuration control that \fBtcltest\fR provides.
 .PP
@@ -1145,7 +1147,7 @@ Here is a sketch of a sample test file illustrating those points:
 .RS
 .PP
 .CS
-package require tcltest 2.2
+package require tcltest 2.5
 eval \fB::tcltest::configure\fR $argv
 package require example
 namespace eval ::example::test {
@@ -1175,12 +1177,11 @@ doing any necessary setup.  This script is usually named \fBall.tcl\fR
 because that is the default name used by \fBrunAllTests\fR when combining
 multiple test suites into one testing run.
 .IP [8]
-Here is a sketch of a sample test suite master script:
+Here is a sketch of a sample test suite main script:
 .RS
 .PP
 .CS
-package require Tcl 8.4
-package require tcltest 2.2
+package require tcltest 2.5
 package require example
 \fB::tcltest::configure\fR -testdir \e
         [file dirname [file normalize [info script]]]
diff --git a/doc/tclvars.n b/doc/tclvars.n
index 9aa14d5..5a0c276 100644
--- a/doc/tclvars.n
+++ b/doc/tclvars.n
@@ -4,21 +4,48 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH tclvars n 8.0 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
 '\" Note:  do not modify the .SH NAME line immediately below!
 .SH NAME
-tclvars \- Variables used by Tcl
+argc, argv, argv0, auto_path, env, errorCode, errorInfo, tcl_interactive, tcl_library, tcl_patchLevel, tcl_pkgPath, tcl_platform, tcl_rcFileName, tcl_traceCompile, tcl_traceExec, tcl_version \- Variables used by Tcl
 .BE
 .SH DESCRIPTION
 .PP
 The following global variables are created and managed automatically
 by the Tcl library.  Except where noted below, these variables should
 normally be treated as read-only by application-specific code and by users.
+.\" VARIABLE: auto_path
+.TP
+\fBauto_path\fR
+.
+If set, then it must contain a valid Tcl list giving directories to
+search during auto-load operations (including for package index
+files when using the default \fBpackage unknown\fR handler).
+This variable is initialized during startup to contain, in order:
+the directories listed in the \fBTCLLIBPATH\fR environment variable,
+the directory named by the \fBtcl_library\fR global variable,
+the parent directory of \fBtcl_library\fR,
+\fB[file dirname [file dirname [info nameofexecutable]]]/lib\fR,
+the directories listed in the \fBtcl_pkgPath\fR variable.
+Additional locations to look for files and package indices should
+normally be added to this variable using \fBlappend\fR.
+Initialization of auto_path from the TCLLIBPATH environment
+variable undergoes tilde substitution (see \fBfilename\fR) on each
+path. Any tilde substitution that fails because the user is unknown
+will be omitted from auto_path.
+.RS
+.PP
+Additional variables relating to package management exist. More
+details are listed in the \fBVARIABLES\fR section of the \fBlibrary\fR
+manual page.
+.RE
+.\" VARIABLE: env
 .TP
 \fBenv\fR
+.
 This variable is maintained by Tcl as an array
 whose elements are the environment variables for the process.
 Reading an element will return the value of the corresponding
@@ -53,11 +80,11 @@ The following elements of \fBenv\fR are special to Tcl:
 \fBenv(HOME)\fR
 .
 This environment variable, if set, gives the location of the directory
-considered to be the current user's home directory, and to which a
-call of \fBcd\fR without arguments or with just
-.QW ~
-as an argument will change into. Most platforms set this correctly by
-default; it does not normally need to be set by user code.
+considered to be the current user's home directory. The value of this variable
+is returned by the \fBfile home\fR command. Most platforms set this correctly by
+default; it does not normally need to be set by user code. On Windows, if not
+already set, it is set to the value of the \fBUSERPROFILE\fR environment
+variable.
 .TP
 \fBenv(TCL_LIBRARY)\fR
 .
@@ -74,19 +101,33 @@ Note that this environment variable should \fInot\fR normally be set.
 \fBenv(TCLLIBPATH)\fR
 .
 If set, then it must contain a valid Tcl list giving directories to
-search during auto-load operations.  Directories must be specified in 
+search during auto-load operations.  Directories must be specified in
 Tcl format, using
 .QW /
 as the path separator, regardless of platform.
 This variable is only used when initializing the \fBauto_path\fR variable.
 .TP
+\fBenv(TCL_TZ)\fR, \fBenv(TZ)\fR
+.
+These specify the default timezone used for parsing and formatting times and
+dates in the \fBclock\fR command. On many platforms, the TZ environment
+variable is set up by the operating system.
+.TP
+\fBenv(LC_ALL)\fR, \fBenv(LC_MESSAGES)\fR, \fBenv(LANG)\fR
+.
+These environment variables are used by the \fBmsgcat\fR package to
+determine what locale to format messages using.
+.TP
 \fBenv(TCL_INTERP_DEBUG_FRAME)\fR
 .
-If existing, it has the same effect as running \fBinterp debug {} -frame 1\fR
+If existing, it has the same effect as running \fBinterp debug\fR
+\fB{} -frame 1\fR
 as the very first command of each new Tcl interpreter.
 .RE
+.\" VARIABLE: errorCode
 .TP
 \fBerrorCode\fR
+.
 This variable holds the value of the \fB\-errorcode\fR return option
 set by the most recent error that occurred in this interpreter.
 This list value represents additional information about the error
@@ -116,6 +157,7 @@ and system libraries.
 .RE
 .TP
 \fBCHILDKILLED\fI pid sigName msg\fR
+.
 This format is used when a child process has been killed because of
 a signal.  The \fIpid\fR element will be the process's identifier (in decimal).
 The \fIsigName\fR element will be the symbolic name of the signal that caused
@@ -127,12 +169,14 @@ describing the signal, such as
 for \fBSIGPIPE\fR.
 .TP
 \fBCHILDSTATUS\fI pid code\fR
+.
 This format is used when a child process has exited with a non-zero
 exit status.  The \fIpid\fR element will be the
 process's identifier (in decimal) and the \fIcode\fR element will be the exit
 code returned by the process (also in decimal).
 .TP
 \fBCHILDSUSP\fI pid sigName msg\fR
+.
 This format is used when a child process has been suspended because
 of a signal.
 The \fIpid\fR element will be the process's identifier, in decimal.
@@ -145,6 +189,7 @@ describing the signal, such as
 for \fBSIGTTIN\fR.
 .TP
 \fBNONE\fR
+.
 This format is used for errors where no additional information is
 available for an error besides the message returned with the
 error.  In these cases the \fB\-errorcode\fR return option
@@ -152,6 +197,7 @@ will consist of a list containing a single element whose
 contents are \fBNONE\fR.
 .TP
 \fBPOSIX \fIerrName msg\fR
+.
 If the first element is \fBPOSIX\fR, then
 the error occurred during a POSIX kernel call.
 The \fIerrName\fR element will contain the symbolic name
@@ -161,6 +207,11 @@ The \fImsg\fR element will be a human-readable
 message corresponding to \fIerrName\fR, such as
 .QW "no such file or directory"
 for the \fBENOENT\fR case.
+.TP
+\fBTCL\fR ...
+.
+Indicates some sort of problem generated in relation to Tcl itself, e.g. a
+failure to look up a channel or variable.
 .PP
 To set the \fB\-errorcode\fR return option, applications should use library
 procedures such as \fBTcl_SetObjErrorCode\fR, \fBTcl_SetReturnOptions\fR,
@@ -170,13 +221,10 @@ If none of these methods for setting the error code has been used,
 the Tcl interpreter will reset the variable to \fBNONE\fR after
 the next error.
 .RE
-.\" .TP
-.\" \fBTCL\fR ...
-.\" .
-.\" Indicates some sort of problem generated in relation to Tcl itself,
-.\" e.g. a failure to look up a channel or variable.
+.\" VARIABLE: errorInfo
 .TP
 \fBerrorInfo\fR
+.
 This variable holds the value of the \fB\-errorinfo\fR return option
 set by the most recent error that occurred in this interpreter.
 This string value will contain one or more lines
@@ -184,12 +232,14 @@ identifying the Tcl commands and procedures that were being executed
 when the most recent error occurred.
 Its contents take the form of a stack trace showing the various
 nested Tcl commands that had been invoked at the time of the error.
+.\" VARIABLE: tcl_library
 .TP
 \fBtcl_library\fR
+.
 This variable holds the name of a directory containing the
 system library of Tcl scripts, such as those used for auto-loading.
 The value of this variable is returned by the \fBinfo library\fR command.
-See the \fBlibrary\fR manual entry for details of the facilities 
+See the \fBlibrary\fR manual entry for details of the facilities
 provided by the Tcl script library.
 Normally each application or package will have its own application-specific
 script library in addition to the Tcl script library;
@@ -205,6 +255,7 @@ If \fBTCL_LIBRARY\fR is not set or doesn't refer to an appropriate
 directory, then Tcl checks several other directories based on a
 compiled-in default location, the location of the binary containing
 the application, and the current working directory.
+.\" VARIABLE: tcl_patchLevel
 .TP
 \fBtcl_patchLevel\fR
 .
@@ -214,16 +265,19 @@ hold a string giving the current patch level for Tcl, such as
 \fB8.5b3\fR for the third beta release of Tcl 8.5.
 The value of this variable is returned by the \fBinfo patchlevel\fR
 command.
+.\" VARIABLE: tcl_pkgPath
 .TP
 \fBtcl_pkgPath\fR
+.
 This variable holds a list of directories indicating where packages are
 normally installed.  It is not used on Windows.  It typically contains
 either one or two entries; if it contains two entries, the first is
 normally a directory for platform-dependent packages (e.g., shared library
 binaries) and the second is normally a directory for platform-independent
 packages (e.g., script files). Typically a package is installed as a
-subdirectory of one of the entries in \fB$tcl_pkgPath\fR. The directories
-in \fB$tcl_pkgPath\fR are included by default in the \fBauto_path\fR
+subdirectory of one of the entries in the \fBtcl_pkgPath\fR
+variable. The directories in the \fBtcl_pkgPath\fR variable are
+included by default in the \fBauto_path\fR
 variable, so they and their immediate subdirectories are automatically
 searched for packages during \fBpackage require\fR commands.  Note:
 \fBtcl_pkgPath\fR is not intended to be modified by the application.  Its
@@ -231,8 +285,10 @@ value is added to \fBauto_path\fR at startup; changes to \fBtcl_pkgPath\fR
 are not reflected in \fBauto_path\fR.  If you want Tcl to search additional
 directories for packages you should add the names of those directories to
 \fBauto_path\fR, not \fBtcl_pkgPath\fR.
+.\" VARIABLE: tcl_platform
 .TP
 \fBtcl_platform\fR
+.
 This is an associative array whose elements contain information about
 the platform on which the application is running, such as the name of
 the operating system, its current release number, and the machine's
@@ -242,136 +298,71 @@ retrieve any relevant information.  In addition, extensions
 and applications may add additional values to the array.  The
 predefined elements are:
 .RS
-.TP
-\fBbyteOrder\fR
+.IP \fBbyteOrder\fR
 The native byte order of this machine: either \fBlittleEndian\fR or
-\fBbigEndian\fR. 
-.TP
-\fBdebug\fR
+\fBbigEndian\fR.
+.IP \fBdebug\fR
 If this variable exists, then the interpreter was compiled with and linked
 to a debug-enabled C run-time.  This variable will only exist on Windows,
 so extension writers can specify which package to load depending on the
 C run-time library that is in use.  This is not an indication that this core
 contains symbols.
-.TP
-\fBengine\fR
-.
+.IP \fBengine\fR
 The name of the Tcl language implementation.  When the interpreter is first
 created, this is always set to the string \fBTcl\fR.
-.TP
-\fBmachine\fR
+.IP \fBmachine\fR
 The instruction set executed by this machine, such as
 \fBintel\fR, \fBPPC\fR, \fB68k\fR, or \fBsun4m\fR.  On UNIX machines, this
 is the value returned by \fBuname -m\fR.
-.TP
-\fBos\fR 
+.IP \fBos\fR
 The name of the operating system running on this machine,
-such as \fBWindows 95\fR, \fBWindows NT\fR, or \fBSunOS\fR.
+such as \fBWindows NT\fR or \fBSunOS\fR.
 On UNIX machines, this is the value returned by \fBuname -s\fR.
-On Windows 95 and Windows 98, the value returned will be \fBWindows
-95\fR to provide better backwards compatibility to Windows 95; to
-distinguish between the two, check the \fBosVersion\fR.
-.TP
-\fBosVersion\fR
+.IP \fBosVersion\fR
 The version number for the operating system running on this machine.
-On UNIX machines, this is the value returned by \fBuname -r\fR.  On
-Windows 95, the version will be 4.0; on Windows 98, the version will
-be 4.10.
-.TP
-\fBplatform\fR
+On UNIX machines, this is the value returned by \fBuname -r\fR.
+.IP \fBpathSeparator\fR
+The character that should be used to \fBsplit\fR PATH-like environment
+variables into their corresponding list of directory names.
+.IP \fBplatform\fR
 Either \fBwindows\fR, or \fBunix\fR.  This identifies the
 general operating environment of the machine.
-.TP
-\fBthreaded\fR
+.IP \fBpointerSize\fR
+This gives the size of the native-machine pointer in bytes (strictly, it
+is same as the result of evaluating \fIsizeof(void*)\fR in C.)
+.IP \fBthreaded\fR
 If this variable exists, then the interpreter
 was compiled with threads enabled.
-.TP
-\fBuser\fR
+.IP \fBuser\fR
 This identifies the
 current user based on the login information available on the platform.
 This value comes from the getuid() and getpwuid() system calls on Unix,
 and the value from the GetUserName() system call on Windows.
-.TP
-\fBwordSize\fR
+.IP \fBwordSize\fR
 This gives the size of the native-machine word in bytes (strictly, it
 is same as the result of evaluating \fIsizeof(long)\fR in C.)
-.TP
-\fBpointerSize\fR
-This gives the size of the native-machine pointer in bytes (strictly, it
-is same as the result of evaluating \fIsizeof(void*)\fR in C.)
-.RE
-.TP
-\fBtcl_precision\fR
-.
-This variable controls the number of digits to generate
-when converting floating-point values to strings.  It defaults
-to 0.  \fIApplications should not change this value;\fR it is
-provided for compatibility with legacy code.
-.PP
-.RS
-The default value of 0 is special, meaning that Tcl should
-convert numbers using as few digits as possible while still
-distinguishing any floating point number from its nearest
-neighbours.  It differs from using an arbitrarily high value
-for \fItcl_precision\fR in that an inexact number like \fI1.4\fR
-will convert as \fI1.4\fR rather than \fI1.3999999999999999\fR
-even though the latter is nearer to the exact value of the
-binary number.
-.RE
-.PP
-.RS
-If \fBtcl_precision\fR is not zero, then when Tcl converts a floating
-point number, it creates a decimal representation of at most 
-\fBtcl_precision\fR significant digits; the result may be shorter if
-the shorter result represents the original number exactly. If no
-result of at most \fBtcl_precision\fR digits is an exact representation
-of the original number, the one that is closest to the original
-number is chosen.
-If the original number lies precisely between two equally accurate
-decimal representations, then the one with an even value for the least
-significant digit is chosen; for instance, if \fBtcl_precision\fR is 3, then
-0.3125 will convert to 0.312, not 0.313, while 0.6875 will convert to
-0.688, not 0.687. Any string of trailing zeroes that remains is trimmed.
-.RE
-.PP
-.RS
-a \fBtcl_precision\fR value of 17 digits is
-.QW perfect
-for IEEE floating-point in that it allows
-double-precision values to be converted to strings and back to
-binary with no loss of information. For this reason, you will often
-see it as a value in legacy code that must run on Tcl versions before
-8.5. It is no longer recommended; as noted above, a zero value is the
-preferred method.
-.RE
-.PP
-.RS
-All interpreters in a thread share a single \fBtcl_precision\fR value:
-changing it in one interpreter will affect all other interpreters as
-well.  Safe interpreters are not allowed to modify the
-variable.
-.RE
-.PP
-.RS
-Valid values for \fBtcl_precision\fR range from 0 to 17.
 .RE
+.\" VARIABLE: tcl_rcFileName
 .TP
 \fBtcl_rcFileName\fR
+.
 This variable is used during initialization to indicate the name of a
 user-specific startup file.  If it is set by application-specific
 initialization, then the Tcl startup code will check for the existence
 of this file and \fBsource\fR it if it exists.  For example, for \fBwish\fR
 the variable is set to \fB~/.wishrc\fR for Unix and \fB~/wishrc.tcl\fR
 for Windows.
+.\" VARIABLE: tcl_traceCompile
 .TP
 \fBtcl_traceCompile\fR
+.
 The value of this variable can be set to control
 how much tracing information
 is displayed during bytecode compilation.
-By default, tcl_traceCompile is zero and no information is displayed.
-Setting tcl_traceCompile to 1 generates a one-line summary in stdout
+By default, \fBtcl_traceCompile\fR is zero and no information is displayed.
+Setting \fBtcl_traceCompile\fR to 1 generates a one-line summary in \fBstdout\fR
 whenever a procedure or top-level command is compiled.
-Setting it to 2 generates a detailed listing in stdout of the
+Setting it to 2 generates a detailed listing in \fBstdout\fR of the
 bytecode instructions emitted during every compilation.
 This variable is useful in
 tracking down suspected problems with the Tcl compiler.
@@ -379,21 +370,24 @@ tracking down suspected problems with the Tcl compiler.
 .RS
 This variable and functionality only exist if
 \fBTCL_COMPILE_DEBUG\fR was defined during Tcl's compilation.
+.\" tcl::unsupported::disassemble always works, but we don't document it
 .RE
+.\" VARIABLE: tcl_traceExec
 .TP
 \fBtcl_traceExec\fR
+.
 The value of this variable can be set to control
 how much tracing information
 is displayed during bytecode execution.
-By default, tcl_traceExec is zero and no information is displayed.
-Setting tcl_traceExec to 1 generates a one-line trace in stdout
+By default, \fBtcl_traceExec\fR is zero and no information is displayed.
+Setting \fBtcl_traceExec\fR to 1 generates a one-line trace in \fBstdout\fR
 on each call to a Tcl procedure.
 Setting it to 2 generates a line of output
 whenever any Tcl command is invoked
 that contains the name of the command and its arguments.
 Setting it to 3 produces a detailed trace showing the result of
 executing each bytecode instruction.
-Note that when tcl_traceExec is 2 or 3,
+Note that when \fBtcl_traceExec\fR is 2 or 3,
 commands such as \fBset\fR and \fBincr\fR
 that have been entirely replaced by a sequence
 of bytecode instructions are not shown.
@@ -405,28 +399,10 @@ and interpreter.
 This variable and functionality only exist if
 \fBTCL_COMPILE_DEBUG\fR was defined during Tcl's compilation.
 .RE
-.TP
-\fBtcl_wordchars\fR
-The value of this variable is a regular expression that can be set to
-control what are considered
-.QW word
-characters, for instances like
-selecting a word by double-clicking in text in Tk.  It is platform
-dependent.  On Windows, it defaults to \fB\eS\fR, meaning anything
-but a Unicode space character.  Otherwise it defaults to \fB\ew\fR,
-which is any Unicode word character (number, letter, or underscore).
-.TP
-\fBtcl_nonwordchars\fR
-The value of this variable is a regular expression that can be set to
-control what are considered
-.QW non-word
-characters, for instances like
-selecting a word by double-clicking in text in Tk.  It is platform
-dependent.  On Windows, it defaults to \fB\es\fR, meaning any Unicode space
-character.  Otherwise it defaults to \fB\eW\fR, which is anything but a
-Unicode word character (number, letter, or underscore).
+.\" VARIABLE: tcl_version
 .TP
 \fBtcl_version\fR
+.
 When an interpreter is created Tcl initializes this variable to
 hold the version number for this version of Tcl in the form \fIx.y\fR.
 Changes to \fIx\fR represent major changes with probable
@@ -435,33 +411,75 @@ bug fixes that retain backward compatibility.
 The value of this variable is returned by the \fBinfo tclversion\fR
 command.
 .SH "OTHER GLOBAL VARIABLES"
+.PP
 The following variables are only guaranteed to exist in \fBtclsh\fR
 and \fBwish\fR executables; the Tcl library does not define them
 itself but many Tcl environments do.
+.\" VARIABLE: argc
 .TP 6
 \fBargc\fR
+.
 The number of arguments to \fBtclsh\fR or \fBwish\fR.
+.\" VARIABLE: argv
 .TP 6
 \fBargv\fR
+.
 Tcl list of arguments to \fBtclsh\fR or \fBwish\fR.
+.\" VARIABLE: argv0
 .TP 6
 \fBargv0\fR
+.
 The script that \fBtclsh\fR or \fBwish\fR started executing (if it was
 specified) or otherwise the name by which \fBtclsh\fR or \fBwish\fR
 was invoked.
+.\" VARIABLE: tcl_interactive
 .TP 6
 \fBtcl_interactive\fR
+.
 Contains 1 if \fBtclsh\fR or \fBwish\fR is running interactively (no
 script was specified and standard input is a terminal-like device), 0
 otherwise.
+.SH EXAMPLES
 .PP
-The \fBwish\fR executable additionally specifies the following global
-variable:
-.TP 6
-\fBgeometry\fR
-If set, contains the user-supplied geometry specification to use for
-the main Tk window.
+To add a directory to the collection of locations searched by
+\fBpackage require\fR, e.g., because of some application-specific
+packages that are used, the \fBauto_path\fR variable needs to be
+updated:
+.PP
+.CS
+lappend ::\fBauto_path\fR [file join [pwd] "theLibDir"]
+.CE
+.PP
+A simple though not very robust way to handle command line arguments
+of the form
+.QW "\-foo 1 \-bar 2"
+is to load them into an array having first loaded in the default settings:
+.CS
+array set arguments {-foo 0 -bar 0 -grill 0}
+array set arguments $::\fBargv\fR
+puts "foo is $arguments(-foo)"
+puts "bar is $arguments(-bar)"
+puts "grill is $arguments(-grill)"
+.CE
+.PP
+The \fBargv0\fR global variable can be used (in conjunction with the
+\fBinfo script\fR command) to determine whether the current script is
+being executed as the main script or loaded as a library.  This is
+useful because it allows a single script to be used as both a library
+and a demonstration of that library:
+.PP
+.CS
+if {$::\fBargv0\fR eq [info script]} {
+    # running as: tclsh example.tcl
+} else {
+    package provide Example 1.0
+}
+.CE
 .SH "SEE ALSO"
-eval(n), tclsh(1), wish(1)
+eval(n), library(n), tclsh(1), tkvars(n), wish(1)
 .SH KEYWORDS
-arithmetic, bytecode, compiler, error, environment, POSIX, precision, subprocess, variables
+arithmetic, bytecode, compiler, error, environment, POSIX, precision,
+subprocess, user, variables
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/tell.n b/doc/tell.n
index c3f8db8..49c097c 100644
--- a/doc/tell.n
+++ b/doc/tell.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH tell n 8.1 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,38 +12,15 @@
 .SH NAME
 tell \- Return current access position for an open channel
 .SH SYNOPSIS
-\fBtell \fIchannelId\fR
+\fBtell \fIchannel\fR
 .BE
-
 .SH DESCRIPTION
 .PP
-Returns an integer string giving the current access position in
-\fIchannelId\fR.  This value returned is a byte offset that can be passed to
-\fBseek\fR in order to set the channel to a particular position.  Note
-that this value is in terms of bytes, not characters like \fBread\fR.
-The value returned is -1 for channels that do not support
-seeking.
-.PP
-\fIChannelId\fR must be an identifier for an open channel such as a
-Tcl standard channel (\fBstdin\fR, \fBstdout\fR, or \fBstderr\fR),
-the return value from an invocation of \fBopen\fR or \fBsocket\fR, or
-the result of a channel creation command provided by a Tcl extension.
-.SH EXAMPLE
-Read a line from a file channel only if it starts with \fBfoobar\fR:
-.CS
-# Save the offset in case we need to undo the read...
-set offset [\fBtell\fR $chan]
-if {[read $chan 6] eq "foobar"} {
-    gets $chan line
-} else {
-    set line {}
-    # Undo the read...
-    seek $chan $offset
-}
-.CE
-
+The \fBtell\fR command has been superceded by the \fBchan tell\fR
+command which supports the same syntax and options.
 .SH "SEE ALSO"
-file(n), open(n), close(n), gets(n), seek(n), Tcl_StandardChannels(3)
-
-.SH KEYWORDS
-access position, channel, seeking
+chan(n)
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/throw.n b/doc/throw.n
new file mode 100644
index 0000000..0d096f4
--- /dev/null
+++ b/doc/throw.n
@@ -0,0 +1,48 @@
+'\"
+'\" Copyright (c) 2008 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH throw n 8.6 Tcl "Tcl Built-In Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+throw \- Generate a machine-readable error
+.SH SYNOPSIS
+\fBthrow\fI type message\fR
+.BE
+.SH DESCRIPTION
+.PP
+This command causes the current evaluation to be unwound with an error. The
+error created is described by the \fItype\fR and \fImessage\fR arguments:
+\fItype\fR must contain a list of words describing the error in a form that is
+machine-readable (and which will form the error-code part of the result
+dictionary), and \fImessage\fR should contain text that is intended for
+display to a human being.
+.PP
+The stack will be unwound until the error is trapped by a suitable \fBcatch\fR
+or \fBtry\fR command. If it reaches the event loop without being trapped, it
+will be reported through the \fBbgerror\fR mechanism. If it reaches the top
+level of script evaluation in \fBtclsh\fR, it will be printed on the console
+before, in the non-interactive case, causing an exit (the behavior in other
+programs will depend on the details of how Tcl is embedded and used).
+.PP
+By convention, the words in the \fItype\fR argument should go from most
+general to most specific.
+.SH EXAMPLES
+.PP
+The following produces an error that is identical to that produced by
+\fBexpr\fR when trying to divide a value by zero.
+.PP
+.CS
+\fBthrow\fR {ARITH DIVZERO {divide by zero}} {divide by zero}
+.CE
+.SH "SEE ALSO"
+catch(n), error(n), errorCode(n), errorInfo(n), return(n), try(n)
+.SH "KEYWORDS"
+error, exception
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/time.n b/doc/time.n
index b734c6a..bea974f 100644
--- a/doc/time.n
+++ b/doc/time.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH time n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,21 +14,23 @@ time \- Time the execution of a script
 .SH SYNOPSIS
 \fBtime \fIscript\fR ?\fIcount\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 This command will call the Tcl interpreter \fIcount\fR
 times to evaluate \fIscript\fR (or once if \fIcount\fR is not
 specified).  It will then return a string of the form
+.PP
 .CS
-\fB503 microseconds per iteration\fR
+\fB503.2 microseconds per iteration\fR
 .CE
+.PP
 which indicates the average amount of time required per iteration,
 in microseconds.
 Time is measured in elapsed time, not CPU time.
 .SH EXAMPLE
 Estimate how long it takes for a simple Tcl \fBfor\fR loop to count to
 a thousand:
+.PP
 .CS
 time {
     for {set i 0} {$i<1000} {incr i} {
@@ -36,9 +38,10 @@ time {
     }
 }
 .CE
-
 .SH "SEE ALSO"
 clock(n)
-
 .SH KEYWORDS
 script, time
+.\" Local Variables:
+.\" mode: nroff
+.\" End:
diff --git a/doc/timerate.n b/doc/timerate.n
index c5fdf30..45fddb6 100644
--- a/doc/timerate.n
+++ b/doc/timerate.n
@@ -11,11 +11,11 @@
 .SH NAME
 timerate \- Calibrated performance measurements of script execution time
 .SH SYNOPSIS
+.nf
 \fBtimerate \fIscript\fR ?\fItime\fR? ?\fImax-count\fR?
-.sp
-\fBtimerate \fR?\fB\-direct\fR? ?\fB\-overhead\fI double\fR? \fIscript\fR ?\fItime\fR? ?\fImax-count\fR?
-.sp
+\fBtimerate \fR?\fB\-direct\fR? ?\fB\-overhead\fI estimate\fR? \fIscript\fR ?\fItime\fR? ?\fImax-count\fR?
 \fBtimerate \fR?\fB\-calibrate\fR? ?\fB\-direct\fR? \fIscript\fR ?\fItime\fR? ?\fImax-count\fR?
+.fi
 .BE
 .SH DESCRIPTION
 .PP
@@ -32,13 +32,13 @@ application performance.
 The first and second form will evaluate \fIscript\fR until the interval
 \fItime\fR given in milliseconds elapses, or for 1000 milliseconds (1 second)
 if \fItime\fR is not specified.
-.sp
+.PP
 The parameter \fImax-count\fR could additionally impose a further restriction
 by the maximal number of iterations to evaluate the script.
-If \fImax-count\fR is specified, the evalution will stop either this count of
+If \fImax-count\fR is specified, the evaluation will stop either this count of
 iterations is reached or the time is exceeded.
-.sp
-It will then return a canonical tcl-list of the form:
+.PP
+It will then return a canonical Tcl-list of the form:
 .PP
 .CS
 \fB0.095977 \(mcs/# 52095836 # 10419167 #/sec 5000.000 net-ms\fR
@@ -46,15 +46,18 @@ It will then return a canonical tcl-list of the form:
 .PP
 which indicates:
 .IP \(bu 3
-the average amount of time required per iteration, in microseconds ([\fBlindex\fR $result 0])
+the average amount of time required per iteration, in microseconds
+([\fBlindex\fR $result 0])
 .IP \(bu 3
 the count how many times it was executed ([\fBlindex\fR $result 2])
 .IP \(bu 3
 the estimated rate per second ([\fBlindex\fR $result 4])
 .IP \(bu 3
-the estimated real execution time without measurement overhead ([\fBlindex\fR $result 6])
+the estimated real execution time without measurement overhead
+([\fBlindex\fR $result 6])
 .PP
 The following options may be supplied to the \fBtimerate\fR command:
+.\" OPTION: -calibrate
 .TP
 \fB\-calibrate\fR
 .
@@ -66,31 +69,36 @@ for future invocations of the \fBtimerate\fR command. If the \fItime\fR
 parameter is not specified, the calibrate procedure runs for up to 10 seconds.
 .RS
 .PP
-Note that calibration is not thread safe in the current implementation.
+Note that the calibration process is not thread safe in the current
+implementation.
 .RE
+.\" OPTION: -overhead
 .TP
-\fB\-overhead \fIdouble\fR
+\fB\-overhead \fIestimate\fR
 .
-The \fB\-overhead\fR parameter supplies an estimate (in microseconds) of the
-measurement overhead of each iteration of the tested script. This quantity
-will be subtracted from the measured time prior to reporting results. This can
-be useful for removing the cost of interpreter state reset commands from the
-script being measured.
+The \fB\-overhead\fR parameter supplies an estimate (in microseconds, which may
+be a floating point number) of the
+measurement overhead of each iteration of the tested script. The passed value
+overrides, for the current invocation of \fBtimerate\fR, the overhead
+estimated by a previous calibration. Overrides may themselves be measured
+using \fBtimerate\fR as illustrated by a later example.
+.\" OPTION: -direct
 .TP
 \fB\-direct\fR
 .
-The \fB-direct\fR option causes direct execution of the supplied script,
+The \fB\-direct\fR option causes direct execution of the supplied script,
 without compilation, in a manner similar to the \fBtime\fR command. It can be
 used to measure the cost of \fBTcl_EvalObjEx\fR, of the invocation of canonical
 lists, and of the uncompiled versions of bytecoded commands.
 .PP
-As opposed to the \fBtime\fR commmand, which runs the tested script for a fixed
-number of iterations, the timerate command runs it for a fixed time.
+As opposed to the \fBtime\fR command, which runs the tested script for a fixed
+number of iterations, the \fBtimerate\fR command runs it for a fixed time.
 Additionally, the compiled variant of the script will be used during the entire
-measurement, as if the script were part of a compiled procedure, if the \fB\-direct\fR
-option is not specified. The fixed time period and possibility of compilation allow
-for more precise results and prevent very long execution times by slow scripts, making
-it practical for measuring scripts with highly uncertain execution times.
+measurement, as if the script were part of a compiled procedure,
+if the \fB\-direct\fR option is not specified. The fixed time period and
+possibility of compilation allow for more precise results and prevent very long
+execution times by slow scripts, making it practical for measuring scripts with
+highly uncertain execution times.
 .SH EXAMPLES
 Estimate how fast it takes for a simple Tcl \fBfor\fR loop (including
 operations on variable \fIi\fR) to count to ten:
@@ -116,9 +124,9 @@ set i 0; \fBtimerate\fR -calibrate {expr {$i<10}; incr i} 1000
 } 5000
 .CE
 .PP
-Estimate the speed of calculating the hour of the day using \fBclock format\fR only,
-ignoring overhead of the portion of the script that prepares the time for it to
-calculate:
+Estimate the speed of calculating the hour of the day using \fBclock format\fR
+only, ignoring overhead of the portion of the script that prepares the time for
+it to calculate:
 .PP
 .CS
 \fI# calibrate\fR
@@ -126,7 +134,7 @@ calculate:
 
 \fI# estimate overhead\fR
 set tm 0
-set ovh [lindex [\fBtimerate\fR {
+set ovh [lindex [\fBtimerate -overhead 0\fR {
     incr tm [expr {24*60*60}]
 }] 0]
 
@@ -137,6 +145,14 @@ set tm 0
     incr tm [expr {24*60*60}]; # overhead for this is ignored
 } 5000
 .CE
+.PP
+In this last example, note that the overhead itself is measured using
+\fBtimerate\fR invoked with \fB-overhead 0\fR. This is necessary
+because explicit overheads are assumed to be absolute values,
+and not an increment over the default calibrated overhead. It is
+therefore important that the calibrated overhead is excluded in the
+measurement of the overhead value itself. This is accomplished by
+passing \fB-overhead 0\fR when measuring the overhead.
 .SH "SEE ALSO"
 time(n)
 .SH KEYWORDS
diff --git a/doc/tm.n b/doc/tm.n
index edd6cff..e18f57e 100644
--- a/doc/tm.n
+++ b/doc/tm.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH tm n 8.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -15,13 +15,16 @@ tm \- Facilities for locating and loading of Tcl Modules
 \fB::tcl::tm::path add \fR?\fIpath\fR...?
 \fB::tcl::tm::path remove \fR?\fIpath\fR...?
 \fB::tcl::tm::path list\fR
-\fB::tcl::tm::roots \fR?\fIpath\fR...?
+\fB::tcl::tm::roots \fR\fIpaths\fR
 .fi
 .BE
 .SH DESCRIPTION
+.PP
 This document describes the facilities for locating and loading Tcl
 Modules (see \fBMODULE DEFINITION\fR for the definition of a Tcl Module).
 The following commands are supported:
+.\" COMMAND: path
+.\" METHOD: add
 .TP
 \fB::tcl::tm::path add \fR?\fIpath\fR...?
 .
@@ -44,21 +47,24 @@ list. As they are added to the front of the list they are searched in
 reverse order of addition. In other words, the paths added last are
 looked at first.
 .RE
+.\" METHOD: remove
 .TP
 \fB::tcl::tm::path remove \fR?\fIpath\fR...?
 .
 Removes the paths from the list of module paths. The command silently
 ignores all paths which are not on the list.
+.\" METHOD: list
 .TP
 \fB::tcl::tm::path list\fR
 .
 Returns a list containing all registered module paths, in the order
 that they are searched for modules.
+.\" COMMAND: roots
 .TP
-\fB::tcl::tm::roots \fR?\fIpath\fR...?
+\fB::tcl::tm::roots \fR\fIpaths\fR
 .
 Similar to \fBpath add\fR, and layered on top of it. This command
-takes a list of paths, extends each with
+takes a single argument containing a list of paths, extends each with
 .QW "\fBtcl\fIX\fB/site-tcl\fR" ,
 and
 .QW "\fBtcl\fIX\fB/\fIX\fB.\fIy\fR" ,
@@ -75,9 +81,11 @@ The command has been exposed to allow a build system to define
 additional root paths beyond those described by this document.
 .RE
 .SH "MODULE DEFINITION"
+.PP
 A Tcl Module is a Tcl Package contained in a single file, and no other
 files required by it. This file has to be \fBsource\fRable. In other
 words, a Tcl Module is always imported via:
+.PP
 .CS
 source module_file
 .CE
@@ -91,6 +99,7 @@ attached data in any it chooses to fully import and activate the
 package.
 .PP
 The name of a module file has to match the regular expression:
+.PP
 .CS
 ([_[:alpha:]][:_[:alnum:]]*)-([[:digit:]].*)\e.tm
 .CE
@@ -99,11 +108,12 @@ The first capturing parentheses provides the name of the package, the
 second clause its version. In addition to matching the pattern, the
 extracted version number must not raise an error when used in the
 command:
+.PP
 .CS
 package vcompare $version 0
 .CE
-.PP
 .SH "FINDING MODULES"
+.PP
 The directory tree for storing Tcl modules is separate from other
 parts of the filesystem and independent of \fBauto_path\fR.
 .PP
@@ -164,10 +174,13 @@ Note that packages in module form have \fIno\fR control over the
 \fIindex\fR and \fIprovide script\fRs entered into the package
 database for them.
 For a module file \fBMF\fR the \fIindex script\fR is always:
+.PP
 .CS
 package ifneeded \fBPNAME PVERSION\fR [list source \fBMF\fR]
 .CE
+.PP
 and the \fIprovide script\fR embedded in the above is:
+.PP
 .CS
 source \fBMF\fR
 .CE
@@ -175,6 +188,7 @@ source \fBMF\fR
 Both package name \fBPNAME\fR and package version \fBPVERSION\fR are
 extracted from the filename \fBMF\fR according to the definition
 below:
+.PP
 .CS
 \fBMF\fR = /module_path/\fBPNAME\(fm\fR-\fBPVERSION\fR.tm
 .CE
@@ -199,6 +213,7 @@ package \fBFoo\fR is deployed in the form of a Tcl Module,
 packages like \fBfoo\fR, \fBfOo\fR, etc. are not allowed
 anymore.
 .SH "DEFAULT PATHS"
+.PP
 The default list of paths on the module path is computed by a
 \fBtclsh\fR as follows, where \fIX\fR is the major version of the Tcl
 interpreter and \fIy\fR is less than or equal to the minor version of
@@ -223,6 +238,7 @@ to the minor version of the interpreter.
 .RS
 .PP
 For example for Tcl 8.4 the paths searched are:
+.PP
 .CS
 \fB[info library]/../tcl8/8.4\fR
 \fB[info library]/../tcl8/8.3\fR
@@ -274,20 +290,25 @@ These paths are seen and therefore shared by all Tcl shells in the
 \fB$::env(PATH)\fR of the user.
 .PP
 Note that \fIX\fR and \fIy\fR follow the general rules set out
-above. In other words, Tcl 8.4, for example, will look at these 5
+above. In other words, Tcl 9.1, for example, will look at these 4
 environment variables:
+.PP
 .CS
-\fB$::env(TCL8.4_TM_PATH)\fR  \fB$::env(TCL8_4_TM_PATH)\fR
-\fB$::env(TCL8.3_TM_PATH)\fR  \fB$::env(TCL8_3_TM_PATH)\fR
-\fB$::env(TCL8.2_TM_PATH)\fR  \fB$::env(TCL8_2_TM_PATH)\fR
-\fB$::env(TCL8.1_TM_PATH)\fR  \fB$::env(TCL8_1_TM_PATH)\fR
-\fB$::env(TCL8.0_TM_PATH)\fR  \fB$::env(TCL8_0_TM_PATH)\fR
+\fB$::env(TCL9.1_TM_PATH)\fR  \fB$::env(TCL9_1_TM_PATH)\fR
+\fB$::env(TCL9.0_TM_PATH)\fR  \fB$::env(TCL9_0_TM_PATH)\fR
 .CE
+.PP
+Paths initialized from the environment variables undergo tilde
+substitution (see \fBfilename\fR). Any path whose tilde substitution
+fails because the user is unknown will be omitted from search paths.
 .SH "SEE ALSO"
 package(n), Tcl Improvement Proposal #189
 .QW "\fITcl Modules\fR"
-(online at http://tip.tcl.tk/189.html), Tcl Improvement Proposal #190
+(online at https://core.tcl-lang.org/tips/doc/trunk/tip/189.md), Tcl Improvement Proposal #190
 .QW "\fIImplementation Choices for Tcl Modules\fR"
-(online at http://tip.tcl.tk/190.html)
+(online at https://core.tcl-lang.org/tips/doc/trunk/tip/190.md)
 .SH "KEYWORDS"
 modules, package
+.\" Local Variables:
+.\" mode: nroff
+.\" End:
diff --git a/doc/trace.n b/doc/trace.n
index 97fbdba..6eba974 100644
--- a/doc/trace.n
+++ b/doc/trace.n
@@ -5,7 +5,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH trace n "8.4" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -19,12 +19,14 @@ trace \- Monitor variable accesses, command usages and command executions
 .PP
 This command causes Tcl commands to be executed whenever certain operations are
 invoked.  The legal \fIoption\fRs (which may be abbreviated) are:
+.\" METHOD: add
 .TP
-\fBtrace add \fItype name ops ?args?\fR
+\fBtrace add \fItype name ops\fR ?\fIargs\fR?
+.
 Where \fItype\fR is \fBcommand\fR, \fBexecution\fR, or \fBvariable\fR.
 .RS
 .TP
-\fBtrace add command\fR \fIname ops commandPrefix\fR
+\fBtrace add command\fI name ops commandPrefix\fR
 .
 Arrange for \fIcommandPrefix\fR to be executed (with additional arguments)
 whenever command \fIname\fR is modified in one of the ways given by the list
@@ -54,9 +56,11 @@ execute them.
 When the trace triggers, depending on the operations being traced, a number of
 arguments are appended to \fIcommandPrefix\fR so that the actual command is as
 follows:
+.PP
 .CS
 \fIcommandPrefix oldName newName op\fR
 .CE
+.PP
 \fIOldName\fR and \fInewName\fR give the traced command's current (old) name,
 and the name to which it is being renamed (the empty string if this is a
 .QW delete
@@ -73,7 +77,7 @@ Both \fIoldName\fR and \fInewName\fR are fully qualified with any namespace(s)
 in which they appear.
 .RE
 .TP
-\fBtrace add execution\fR \fIname ops commandPrefix\fR
+\fBtrace add execution\fI name ops commandPrefix\fR
 .
 Arrange for \fIcommandPrefix\fR to be executed (with additional arguments)
 whenever command \fIname\fR is executed, with traces occurring at the points
@@ -86,10 +90,12 @@ an error will be thrown.
 one or more of the following items:
 .TP
 \fBenter\fR
+.
 Invoke \fIcommandPrefix\fR whenever the command \fIname\fR is executed,
 just before the actual execution takes place.
 .TP
 \fBleave\fR
+.
 Invoke \fIcommandPrefix\fR whenever the command \fIname\fR is executed,
 just after the actual execution takes place.
 .TP
@@ -121,9 +127,11 @@ number of arguments are appended to \fIcommandPrefix\fR so that the actual
 command is as follows:
 .PP
 For \fBenter\fR and \fBenterstep\fR operations:
+.PP
 .CS
 \fIcommandPrefix command-string op\fR
 .CE
+.PP
 \fICommand-string\fR gives the complete current command being
 executed (the traced command for a \fBenter\fR operation, an
 arbitrary command for a \fBenterstep\fR operation), including
@@ -137,9 +145,11 @@ course when the command is subsequently executed, an
 error will occur.
 .PP
 For \fBleave\fR and \fBleavestep\fR operations:
+.PP
 .CS
 \fIcommandPrefix command-string code result op\fR
 .CE
+.PP
 \fICommand-string\fR gives the complete current command being
 executed (the traced command for a \fBenter\fR operation, an
 arbitrary command for a \fBenterstep\fR operation), including
@@ -149,6 +159,7 @@ the result string.
 \fIOp\fR indicates what operation is being performed on the
 command execution, and is one of \fBleave\fR or \fBleavestep\fR as
 defined above.
+.PP
 Note that the creation of many \fBenterstep\fR or
 \fBleavestep\fR traces can lead to unintuitive results, since the
 invoked commands from one trace can themselves lead to further
@@ -180,6 +191,7 @@ The behavior of execution traces is currently undefined for a command
 .RE
 .TP
 \fBtrace add variable\fI name ops commandPrefix\fR
+.
 Arrange for \fIcommandPrefix\fR to be executed whenever variable \fIname\fR
 is accessed in one of the ways given by the list \fIops\fR.  \fIName\fR may
 refer to a normal variable, an element of an array, or to an array
@@ -195,6 +207,7 @@ queries, but not to \fBinfo exists\fR queries.
 one or more of the following items:
 .TP
 \fBarray\fR
+.
 Invoke \fIcommandPrefix\fR whenever the variable is accessed or modified via
 the \fBarray\fR command, provided that \fIname\fR is not a scalar
 variable at the time that the \fBarray\fR command is invoked.  If
@@ -202,12 +215,15 @@ variable at the time that the \fBarray\fR command is invoked.  If
 command will not trigger the trace.
 .TP
 \fBread\fR
+.
 Invoke \fIcommandPrefix\fR whenever the variable is read.
 .TP
 \fBwrite\fR
+.
 Invoke \fIcommandPrefix\fR whenever the variable is written.
 .TP
 \fBunset\fR
+.
 Invoke \fIcommandPrefix\fR whenever the variable is unset.  Variables
 can be unset explicitly with the \fBunset\fR command, or
 implicitly when procedures return (all of their local variables
@@ -217,21 +233,23 @@ interpreter in which to execute them.
 .PP
 When the trace triggers, three arguments are appended to
 \fIcommandPrefix\fR so that the actual command is as follows:
+.PP
 .CS
 \fIcommandPrefix name1 name2 op\fR
 .CE
-\fIName1\fR and \fIname2\fR give the name(s) for the variable
-being accessed:  if the variable is a scalar then \fIname1\fR
-gives the variable's name and \fIname2\fR is an empty string;
-if the variable is an array element then \fIname1\fR gives the
-name of the array and name2 gives the index into the array;
-if an entire array is being deleted and the trace was registered
+.PP
+\fIName1\fR gives the name for the variable being accessed.
+This is not necessarily the same as the name used in the
+\fBtrace add variable\fR command:  the \fBupvar\fR command allows a
+procedure to reference a variable under a different name.
+If the trace was originally set on an array or array element,
+\fIname2\fR provides which index into the array was affected.
+This information is present even when \fIname1\fR refers to a
+scalar, which may happen if the \fBupvar\fR command was used to
+create a reference to a single array element.
+If an entire array is being deleted and the trace was registered
 on the overall array, rather than a single element, then \fIname1\fR
 gives the array name and \fIname2\fR is an empty string.
-\fIName1\fR and \fIname2\fR are not necessarily the same as the
-name used in the \fBtrace variable\fR command:  the \fBupvar\fR
-command allows a procedure to reference a variable under a
-different name.
 \fIOp\fR indicates what operation is being performed on the
 variable, and is one of \fBread\fR, \fBwrite\fR, or \fBunset\fR as
 defined above.
@@ -293,12 +311,15 @@ but will not remove traces on the overall array.
 This command returns an empty string.
 .RE
 .RE
+.\" METHOD: remove
 .TP
 \fBtrace remove \fItype name opList commandPrefix\fR
+.
 Where \fItype\fR is either \fBcommand\fR, \fBexecution\fR or \fBvariable\fR.
 .RS
 .TP
 \fBtrace remove command\fI name opList commandPrefix\fR
+.
 If there is a trace set on command \fIname\fR with the operations and
 command given by \fIopList\fR and \fIcommandPrefix\fR, then the trace is
 removed, so that \fIcommandPrefix\fR will never again be invoked.  Returns
@@ -306,6 +327,7 @@ an empty string.   If \fIname\fR does not exist, the command will throw
 an error.
 .TP
 \fBtrace remove execution\fI name opList commandPrefix\fR
+.
 If there is a trace set on command \fIname\fR with the operations and
 command given by \fIopList\fR and \fIcommandPrefix\fR, then the trace is
 removed, so that \fIcommandPrefix\fR will never again be invoked.  Returns
@@ -313,17 +335,21 @@ an empty string.   If \fIname\fR does not exist, the command will throw
 an error.
 .TP
 \fBtrace remove variable\fI name opList commandPrefix\fR
+.
 If there is a trace set on variable \fIname\fR with the operations and
 command given by \fIopList\fR and \fIcommandPrefix\fR, then the trace is
 removed, so that \fIcommandPrefix\fR will never again be invoked.  Returns
 an empty string.
 .RE
+.\" METHOD: info
 .TP
 \fBtrace info \fItype name\fR
+.
 Where \fItype\fR is either \fBcommand\fR, \fBexecution\fR or \fBvariable\fR.
 .RS
 .TP
 \fBtrace info command\fI name\fR
+.
 Returns a list containing one element for each trace currently set on
 command \fIname\fR. Each element of the list is itself a list
 containing two elements, which are the \fIopList\fR and \fIcommandPrefix\fR
@@ -332,6 +358,7 @@ then the result of the command will be an empty string.  If \fIname\fR
 does not exist, the command will throw an error.
 .TP
 \fBtrace info execution\fI name\fR
+.
 Returns a list containing one element for each trace currently set on
 command \fIname\fR. Each element of the list is itself a list
 containing two elements, which are the \fIopList\fR and \fIcommandPrefix\fR
@@ -340,6 +367,7 @@ then the result of the command will be an empty string.  If \fIname\fR
 does not exist, the command will throw an error.
 .TP
 \fBtrace info variable\fI name\fR
+.
 Returns a list containing one element for each trace currently set on
 variable \fIname\fR.  Each element of the list is itself a list
 containing two elements, which are the \fIopList\fR and \fIcommandPrefix\fR
@@ -347,30 +375,12 @@ associated with the trace.  If \fIname\fR does not exist or does not
 have any traces set, then the result of the command will be an empty
 string.
 .RE
-.PP
-For backwards compatibility, three other subcommands are available:
-.RS
-.TP
-\fBtrace variable \fIname ops command\fR
-This is equivalent to \fBtrace add variable \fIname ops command\fR.
-.TP
-\fBtrace vdelete \fIname ops command\fR
-This is equivalent to \fBtrace remove variable \fIname ops command\fR
-.TP
-\fBtrace vinfo \fIname\fR
-This is equivalent to \fBtrace info variable \fIname\fR
-.RE
-.PP
-These subcommands are deprecated and will likely be removed in a
-future version of Tcl.  They use an older syntax in which \fBarray\fR,
-\fBread\fR, \fBwrite\fR, \fBunset\fR are replaced by \fBa\fR, \fBr\fR,
-\fBw\fR and \fBu\fR respectively, and the \fIops\fR argument is not a
-list, but simply a string concatenation of the operations, such as
-\fBrwua\fR.
 .SH EXAMPLES
+.PP
 Print a message whenever either of the global variables \fBfoo\fR and
 \fBbar\fR are updated, even if they have a different local name at the
 time (which can be done with the \fBupvar\fR command):
+.PP
 .CS
 proc tracer {varname args} {
     upvar #0 $varname var
@@ -382,6 +392,7 @@ proc tracer {varname args} {
 .PP
 Ensure that the global variable \fBfoobar\fR always contains the
 product of the global variables \fBfoo\fR and \fBbar\fR:
+.PP
 .CS
 proc doMult args {
     global foo bar foobar
@@ -393,6 +404,7 @@ proc doMult args {
 .PP
 Print a trace of what commands are executed during the processing of a Tcl
 procedure:
+.PP
 .CS
 proc x {} { y }
 proc y {} { z }
@@ -409,3 +421,6 @@ x
 set(n), unset(n)
 .SH KEYWORDS
 read, command, rename, variable, write, trace, unset
+.\" Local Variables:
+.\" mode: nroff
+.\" End:
diff --git a/doc/transchan.n b/doc/transchan.n
new file mode 100644
index 0000000..d174d23
--- /dev/null
+++ b/doc/transchan.n
@@ -0,0 +1,175 @@
+'\"
+'\" Copyright (c) 2008 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH transchan n 8.6 Tcl "Tcl Built-In Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+transchan \- command handler API of channel transforms
+.SH SYNOPSIS
+.nf
+\fBchan push \fIchannel cmdPrefix\fR
+
+\fIcmdPrefix \fBclear \fIhandle\fR
+\fIcmdPrefix \fBdrain \fIhandle\fR
+\fIcmdPrefix \fBfinalize \fIhandle\fR
+\fIcmdPrefix \fBflush \fIhandle\fR
+\fIcmdPrefix \fBinitialize \fIhandle mode\fR
+\fIcmdPrefix \fBlimit? \fIhandle\fR
+\fIcmdPrefix \fBread \fIhandle buffer\fR
+\fIcmdPrefix \fBwrite \fIhandle buffer\fR
+.fi
+.BE
+.SH DESCRIPTION
+.PP
+The Tcl-level handler for a channel transformation has to be a command with
+subcommands (termed an \fIensemble\fR despite not implying that it must be
+created with \fBnamespace ensemble create\fR; this mechanism is not tied to
+\fBnamespace ensemble\fR in any way). Note that \fIcmdPrefix\fR is whatever
+was specified in the call to \fBchan push\fR, and may consist of multiple
+arguments; this will be expanded to multiple words in place of the prefix.
+.PP
+Of all the possible subcommands, the handler \fImust\fR support
+\fBinitialize\fR and \fBfinalize\fR. Transformations for writable channels
+must also support \fBwrite\fR, and transformations for readable channels must
+also support \fBread\fR.
+.PP
+Note that in the descriptions below \fIcmdPrefix\fR may be more than one word,
+and \fIhandle\fR is the value returned by the \fBchan push\fR call used to
+create the transformation.
+.SS "GENERIC SUBCOMMANDS"
+.PP
+The following subcommands are relevant to all types of channel.
+.\" METHOD: clear
+.TP
+\fIcmdPrefix \fBclear \fIhandle\fR
+.
+This optional subcommand is called to signify to the transformation that any
+data stored in internal buffers (either incoming or outgoing) must be
+cleared. It is called when a \fBchan seek\fR is performed on the channel being
+transformed.
+.\" METHOD: finalize
+.TP
+\fIcmdPrefix \fBfinalize \fIhandle\fR
+.
+This mandatory subcommand is called last for the given \fIhandle\fR, and then
+never again, and it exists to allow for cleaning up any Tcl-level data
+structures associated with the transformation. \fIWarning!\fR Any errors
+thrown by this subcommand will be ignored. It is not guaranteed to be called
+if the interpreter is deleted.
+.\" METHOD: initialize
+.TP
+\fIcmdPrefix \fBinitialize \fIhandle mode\fR
+.
+This mandatory subcommand is called first, and then never again (for the given
+\fIhandle\fR). Its responsibility is to initialize all parts of the
+transformation at the Tcl level. The \fImode\fR is a list containing any of
+\fBread \fRand \fBwrite\fR.
+.RS
+.IP \fBwrite\fR
+implies that the channel is writable.
+.IP \fBread\fR
+implies that the channel is readable.
+.PP
+The return value of the subcommand should be a list containing the names of
+all subcommands supported by this handler. Any error thrown by the subcommand
+will prevent the creation of the transformation. The thrown error will appear
+as error thrown by \fBchan push\fR.
+.RE
+.SS "READ-RELATED SUBCOMMANDS"
+.PP
+These subcommands are used for handling transformations applied to readable
+channels; though strictly \fBread \fRis optional, it must be supported if any
+of the others is or the channel will be made non-readable.
+.\" METHOD: drain
+.TP
+\fIcmdPrefix \fBdrain \fIhandle\fR
+.
+This optional subcommand is called whenever data in the transformation input
+(i.e. read) buffer has to be forced upward, i.e. towards the user or script.
+The result returned by the method is taken as the \fIbinary\fR data to push
+upward to the level above this transformation (the reader or a higher-level
+transformation).
+.RS
+.PP
+In other words, when this method is called the transformation cannot defer the
+actual transformation operation anymore and has to transform all data waiting
+in its internal read buffers and return the result of that action.
+.RE
+.\" METHOD: limit?
+.TP
+\fIcmdPrefix \fBlimit? \fIhandle\fR
+.
+This optional subcommand is called to allow the Tcl I/O engine to determine
+how far ahead it should read. If present, it should return an integer number
+greater than zero which indicates how many bytes ahead should be read, or an
+integer less than zero to indicate that the I/O engine may read as far ahead
+as it likes.
+.\" METHOD: read
+.TP
+\fIcmdPrefix \fBread \fIhandle buffer\fR
+.
+This subcommand, which must be present if the transformation is to work with
+readable channels, is called whenever the base channel, or a transformation
+below this transformation, pushes data upward. The \fIbuffer\fR contains the
+binary data which has been given to us from below. It is the responsibility of
+this subcommand to actually transform the data. The result returned by the
+subcommand is taken as the binary data to push further upward to the
+transformation above this transformation. This can also be the user or script
+that originally read from the channel.
+.RS
+.PP
+Note that the result is allowed to be empty, or even less than the data we
+received; the transformation is not required to transform everything given to
+it right now. It is allowed to store incoming data in internal buffers and to
+defer the actual transformation until it has more data.
+.RE
+.SS "WRITE-RELATED SUBCOMMANDS"
+.PP
+These subcommands are used for handling transformations applied to writable
+channels; though strictly \fBwrite\fR is optional, it must be supported if any
+of the others is or the channel will be made non-writable.
+.\" METHOD: flush
+.TP
+\fIcmdPrefix \fBflush \fIhandle\fR
+.
+This optional subcommand is called whenever data in the transformation 'write'
+buffer has to be forced downward, i.e. towards the base channel. The result
+returned by the subcommand is taken as the binary data to write to the
+transformation below the current transformation. This can be the base channel
+as well.
+.RS
+.PP
+In other words, when this subcommand is called the transformation cannot defer
+the actual transformation operation anymore and has to transform all data
+waiting in its internal write buffers and return the result of that action.
+.RE
+.\" METHOD: write
+.TP
+\fIcmdPrefix \fBwrite \fIhandle buffer\fR
+.
+This subcommand, which must be present if the transformation is to work with
+writable channels, is called whenever the user, or a transformation above this
+transformation, writes data downward. The \fIbuffer\fR contains the binary
+data which has been written to us. It is the responsibility of this subcommand
+to actually transform the data.
+.RS
+.PP
+The result returned by the subcommand is taken as the binary data to write to
+the transformation below this transformation. This can be the base channel as
+well. Note that the result is allowed to be empty, or less than the data we
+got; the transformation is not required to transform everything which was
+written to it right now. It is allowed to store this data in internal buffers
+and to defer the actual transformation until it has more data.
+.RE
+.SH "SEE ALSO"
+chan(n), refchan(n)
+.SH KEYWORDS
+API, channel, ensemble, prefix, transformation
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/try.n b/doc/try.n
new file mode 100644
index 0000000..cd879ca
--- /dev/null
+++ b/doc/try.n
@@ -0,0 +1,120 @@
+'\"
+'\" Copyright (c) 2008 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH try n 8.6 Tcl "Tcl Built-In Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+try \- Trap and process errors and exceptions
+.SH SYNOPSIS
+\fBtry\fI body\fR ?\fIhandler...\fR? ?\fBfinally\fI script\fR?
+.BE
+.SH DESCRIPTION
+.PP
+This command executes the script \fIbody\fR and, depending on what the outcome
+of that script is (normal exit, error, or some other exceptional result), runs
+a handler script to deal with the case. Once that has all happened, if the
+\fBfinally\fR clause is present, the \fIscript\fR it includes will be run and
+the result of the handler (or the \fIbody\fR if no handler matched) is allowed
+to continue to propagate. Note that the \fBfinally\fR clause is processed even
+if an error occurs and irrespective of which, if any, \fIhandler\fR is used.
+.PP
+The \fIhandler\fR clauses are each expressed as several words, and must have
+one of the following forms:
+.TP
+\fBon \fIcode variableList script\fR
+.
+This clause matches if the evaluation of \fIbody\fR completed with the
+exception code \fIcode\fR. The \fIcode\fR may be expressed as an integer or
+one of the following literal words: \fBok\fR, \fBerror\fR, \fBreturn\fR,
+\fBbreak\fR, or \fBcontinue\fR. Those literals correspond to the integers 0
+through 4 respectively.
+.TP
+\fBtrap \fIpattern variableList script\fR
+.
+This clause matches if the evaluation of \fIbody\fR resulted in an error and
+the prefix of the \fB\-errorcode\fR from the interpreter's status dictionary
+is equal to the \fIpattern\fR. The number of prefix words taken from the
+\fB\-errorcode\fR is equal to the list-length of \fIpattern\fR, and inter-word
+spaces are normalized in both the \fB\-errorcode\fR and \fIpattern\fR before
+comparison.
+.PP
+The \fIvariableList\fR word in each \fIhandler\fR is always interpreted as a
+list of variable names. If the first word of the list is present and
+non-empty, it names a variable into which the result of the evaluation of
+\fIbody\fR (from the main \fBtry\fR) will be placed; this will contain the
+human-readable form of any errors. If the second word of the list is present
+and non-empty, it names a variable into which the options dictionary of the
+interpreter at the moment of completion of execution of \fIbody\fR
+will be placed.
+.PP
+The \fIscript\fR word of each \fIhandler\fR is also always interpreted the
+same: as a Tcl script to evaluate if the clause is matched. If \fIscript\fR is
+a literal
+.QW \-
+and the \fIhandler\fR is not the last one, the \fIscript\fR of the following
+\fIhandler\fR is invoked instead (just like with the \fBswitch\fR command).
+.PP
+Note that \fIhandler\fR clauses are matched against in order, and that the
+first matching one is always selected. At most one \fIhandler\fR clause will
+selected. As a consequence, an \fBon error\fR will mask any subsequent
+\fBtrap\fR in the \fBtry\fR. Also note that \fBon error\fR is equivalent to
+\fBtrap {}\fR.
+.PP
+If an exception (i.e. any non-\fBok\fR result) occurs during the evaluation of
+either the \fIhandler\fR or the \fBfinally\fR clause, the original exception's
+status dictionary will be added to the new exception's status dictionary under
+the \fB\-during\fR key.
+.SH EXAMPLES
+.PP
+Ensure that a file is closed no matter what:
+.PP
+.CS
+set f [open /some/file/name a]
+\fBtry\fR {
+    puts $f "some message"
+    # ...
+} \fBfinally\fR {
+    close $f
+}
+.CE
+.PP
+Handle different reasons for a file to not be openable for reading:
+.PP
+.CS
+\fBtry\fR {
+    set f [open /some/file/name r]
+} \fBtrap\fR {POSIX EISDIR} {} {
+    puts "failed to open /some/file/name: it's a directory"
+} \fBtrap\fR {POSIX ENOENT} {} {
+    puts "failed to open /some/file/name: it doesn't exist"
+}
+.CE
+.PP
+Proc to read a file in utf-8 encoding and return its contents.
+The file is closed in success and error case by the finally clause.
+It is allowed to call \fBreturn\fR within the \fBtry\fR block.
+Remark that with tcl 9, the read command may also throw utf-8 conversion errors:
+.PP
+.CS
+proc readfile {filename} {
+    set f [open $filename r]
+    \fBtry\fR {
+        fconfigure $f -encoding utf-8 -profile strict
+        \fBreturn\fR [read $f]
+    } \fBfinally\fR {
+        close $f
+    }
+}
+.CE
+.SH "SEE ALSO"
+catch(n), error(n), return(n), throw(n)
+.SH "KEYWORDS"
+cleanup, error, exception, final, resource management
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/unknown.n b/doc/unknown.n
index 15f903d..8ea1e8e 100644
--- a/doc/unknown.n
+++ b/doc/unknown.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH unknown n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -21,14 +21,14 @@ tries to invoke a command that does not exist.  The default implementation
 of \fBunknown\fR is a library procedure defined when Tcl initializes an
 interpreter.  You can override the default \fBunknown\fR to change its
 functionality, or you can register a new handler for individual namespaces
-using the \fBnamespace unknown\fR command.  Note that there is no default 
+using the \fBnamespace unknown\fR command.  Note that there is no default
 implementation of \fBunknown\fR in a safe interpreter.
 .PP
 If the Tcl interpreter encounters a command name for which there
-is not a defined command (in either the current namespace, or the 
+is not a defined command (in either the current namespace, or the
 global namespace), then Tcl checks for the existence of
 an unknown handler for the current namespace. By default, this
-handler is a command named \fB::unknown\fR.  If there is no such 
+handler is a command named \fB::unknown\fR.  If there is no such
 command, then the interpreter returns an error.
 If the \fBunknown\fR command exists (or a new handler has been
 registered for the current namespace), then it is invoked with
@@ -47,7 +47,7 @@ The default implementation of \fBunknown\fR behaves as follows.
 It first calls the \fBauto_load\fR library procedure to load the command.
 If this succeeds, then it executes the original command with its
 original arguments.
-If the auto-load fails then \fBunknown\fR calls \fBauto_execok\fR
+If the auto-load fails and Tcl is run interactively then \fBunknown\fR calls \fBauto_execok\fR
 to see if there is an executable file by the name \fIcmd\fR.
 If so, it invokes the Tcl \fBexec\fR command
 with \fIcmd\fR and all the \fIargs\fR as arguments.
@@ -88,4 +88,8 @@ proc \fBunknown\fR args {
 .SH "SEE ALSO"
 info(n), proc(n), interp(n), library(n), namespace(n)
 .SH KEYWORDS
-error, non-existent command
+error, non-existent command, unknown
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/unload.n b/doc/unload.n
index 82c4f4a..fdc3555 100644
--- a/doc/unload.n
+++ b/doc/unload.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH unload n 8.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -13,9 +13,9 @@ unload \- Unload machine code
 .SH SYNOPSIS
 \fBunload \fR?\fIswitches\fR? \fIfileName\fR
 .br
-\fBunload \fR?\fIswitches\fR? \fIfileName packageName\fR
+\fBunload \fR?\fIswitches\fR? \fIfileName prefix\fR
 .br
-\fBunload \fR?\fIswitches\fR? \fIfileName packageName interp\fR
+\fBunload \fR?\fIswitches\fR? \fIfileName prefix interp\fR
 .BE
 .SH DESCRIPTION
 .PP
@@ -24,7 +24,7 @@ with \fBload\fR from the application's address space.  \fIfileName\fR
 is the name of the file containing the library file to be unload;  it
 must be the same as the filename provided to \fBload\fR for
 loading the library.
-The \fIpackageName\fR argument is the name of the package (as
+The \fIprefix\fR argument is the prefix (as
 determined by or passed to \fBload\fR), and is used to
 compute the name of the unload procedure; if not supplied, it is
 computed from \fIfileName\fR in the same manner as \fBload\fR.
@@ -36,16 +36,19 @@ interpreter in which the \fBunload\fR command was invoked.
 If the initial arguments to \fBunload\fR start with \fB\-\fR then
 they are treated as switches.  The following switches are
 currently supported:
+.\" OPTION: -nocomplain
 .TP
 \fB\-nocomplain\fR
 .
 Suppresses all error messages. If this switch is given, \fBunload\fR will
 never report an error.
+.\" OPTION: -keeplibrary
 .TP
 \fB\-keeplibrary\fR
 .
 This switch will prevent \fBunload\fR from issuing the operating system call
-that will unload the library from the process. 
+that will unload the library from the process.
+.\" OPTION: --
 .TP
 \fB\-\|\-\fR
 .
@@ -66,12 +69,12 @@ proper reference count.
 \fBunload\fR works in the opposite direction. As a first step, \fBunload\fR
 will check whether the library is unloadable: an unloadable library exports
 a special unload procedure. The name of the unload procedure is determined by
-\fIpackageName\fR and whether or not the target interpreter
+\fIprefix\fR and whether or not the target interpreter
 is a safe one.  For normal interpreters the name of the initialization
-procedure will have the form \fIpkg\fB_Unload\fR, where \fIpkg\fR
-is the same as \fIpackageName\fR except that the first letter is
+procedure will have the form \fIpfx\fB_Unload\fR, where \fIpfx\fR
+is the same as \fIprefix\fR except that the first letter is
 converted to upper case and all other letters
-are converted to lower case.  For example, if \fIpackageName\fR is
+are converted to lower case.  For example, if \fIprefix\fR is
 \fBfoo\fR or \fBFOo\fR, the initialization procedure's name will
 be \fBFoo_Unload\fR.
 If the target interpreter is a safe interpreter, then the name
@@ -81,15 +84,18 @@ instead of \fIpkg\fB_Unload\fR.
 If \fBunload\fR determines that a library is not unloadable (or unload
 functionality has been disabled during compilation), an error will be returned.
 If the library is unloadable, then \fBunload\fR will call the unload
-procedure. If the unload procedure returns \fBTCL_OK\fR, \fBunload\fR will proceed
-and decrease the proper reference count (depending on the target interpreter
-type). When both reference counts have reached 0, the library will be
-detached from the process.
+procedure. If the unload procedure returns \fBTCL_OK\fR, \fBunload\fR will
+proceed and decrease the proper reference count (depending on the target
+interpreter type). When both reference counts have reached 0, the library will
+be detached from the process.
 .SS "UNLOAD HOOK PROTOTYPE"
 .PP
 The unload procedure must match the following prototype:
+.PP
 .CS
-typedef int Tcl_PackageUnloadProc(Tcl_Interp *\fIinterp\fR, int \fIflags\fR);
+typedef int \fBTcl_LibraryUnloadProc\fR(
+        Tcl_Interp *\fIinterp\fR,
+        int \fIflags\fR);
 .CE
 .PP
 The \fIinterp\fR argument identifies the interpreter from which the
@@ -106,27 +112,28 @@ the library is used by other interpreters),
 \fBTCL_UNLOAD_DETACH_FROM_INTERPRETER\fR will be defined. However, if the
 library is used only by the target interpreter and the library will be
 detached from the application as soon as the unload procedure returns,
-the \fIflags\fR argument will be set to \fBTCL_UNLOAD_DETACH_FROM_PROCESS\fR. 
+the \fIflags\fR argument will be set to \fBTCL_UNLOAD_DETACH_FROM_PROCESS\fR.
 .SS NOTES
 .PP
 The \fBunload\fR command cannot unload libraries that are statically
 linked with the application.
-If \fIfileName\fR is an empty string, then the \fIpackageName\fR argument must
+If \fIfileName\fR is an empty string, then the \fIprefix\fR argument must
 be specified.
 .PP
-If \fIpackageName\fR is omitted or specified as an empty string,
-Tcl tries to guess the name of the package.
-This may be done differently on different platforms.
-The default guess, which is used on most UNIX platforms, is to
-take the last element of \fIfileName\fR, strip off the first
-three characters if they are \fBlib\fR, and use any following
-alphabetic and underline characters as the module name.
-For example, the command \fBunload libxyz4.2.so\fR uses the module
-name \fBxyz\fR and the command \fBunload bin/last.so {}\fR uses the
-module name \fBlast\fR.
+If \fIprefix\fR is omitted or specified as an empty string,
+Tcl tries to guess the prefix. This may be done differently on
+different platforms. The default guess, which is used on most
+UNIX platforms, is to take the last element of
+\fIfileName\fR, strip off the first three characters if they
+are \fBlib\fR, then strip off the next three characters if they
+are \fBtcl9\fR, and use any following wordchars but not digits,
+converted to titlecase as the prefix.
+For example, the command \fBunload libxyz4.2.so\fR uses the prefix
+\fBXyz\fR and the command \fBunload bin/last.so {}\fR uses the
+prefix \fBLast\fR.
 .SH "PORTABILITY ISSUES"
 .TP
-\fBUnix\fR\0\0\0\0\0
+\fBUnix\fR
 .
 Not all unix operating systems support library unloading. Under such
 an operating system \fBunload\fR returns an error (unless \fB\-nocomplain\fR
@@ -142,12 +149,16 @@ library is still loaded), it may be dangerous to use
 \fBunload\fR on such a library (as the library will be completely detached
 from the application while some interpreters will continue to use it).
 .SH EXAMPLE
+.PP
 If an unloadable module in the file \fBfoobar.dll\fR had been loaded
 using the \fBload\fR command like this (on Windows):
+.PP
 .CS
 load c:/some/dir/foobar.dll
 .CE
+.PP
 then it would be unloaded like this:
+.PP
 .CS
 \fBunload\fR c:/some/dir/foobar.dll
 .CE
@@ -160,3 +171,6 @@ without having to shut down the overall Tcl process.
 info sharedlibextension, load(n), safe(n)
 .SH KEYWORDS
 binary code, unloading, safe interpreter, shared library
+.\" Local Variables:
+.\" mode: nroff
+.\" End:
diff --git a/doc/unset.n b/doc/unset.n
index 09f2ce6..2cfc63e 100644
--- a/doc/unset.n
+++ b/doc/unset.n
@@ -5,7 +5,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH unset n 8.4 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -13,7 +13,7 @@
 .SH NAME
 unset \- Delete variables
 .SH SYNOPSIS
-\fBunset \fR?\fI\-nocomplain\fR? ?\fI\-\-\fR? ?\fIname name name ...\fR?
+\fBunset \fR?\fB\-nocomplain\fR? ?\fB\-\-\fR? ?\fIname name name ...\fR?
 .BE
 .SH DESCRIPTION
 .PP
@@ -25,19 +25,21 @@ element is removed without affecting the rest of the array.
 If a \fIname\fR consists of an array name with no parenthesized
 index, then the entire array is deleted.
 The \fBunset\fR command returns an empty string as result.
-If \fI\-nocomplain\fR is specified as the first argument, any possible
+If \fB\-nocomplain\fR is specified as the first argument, any possible
 errors are suppressed.  The option may not be abbreviated, in order to
-disambiguate it from possible variable names.  The option \fI\-\-\fR
+disambiguate it from possible variable names.  The option \fB\-\-\fR
 indicates the end of the options, and should be used if you wish to
 remove a variable with the same name as any of the options.
-If an error occurs, any variables after the named one causing the error
-are not
+If an error occurs during variable deletion, any variables after the named one
+causing the error are not
 deleted.  An error can occur when the named variable does not exist, or the
 name refers to an array element but the variable is a scalar, or the name
 refers to a variable in a non-existent namespace.
 .SH EXAMPLE
+.PP
 Create an array containing a mapping from some numbers to their
 squares and remove the array elements for non-prime numbers:
+.PP
 .CS
 array set squares {
     1 1    6 36
@@ -60,3 +62,7 @@ parray squares
 set(n), trace(n), upvar(n)
 .SH KEYWORDS
 remove, variable
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/update.n b/doc/update.n
index 745c5fd..a85faac 100644
--- a/doc/update.n
+++ b/doc/update.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH update n 7.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,7 +14,6 @@ update \- Process pending events and idle callbacks
 .SH SYNOPSIS
 \fBupdate\fR ?\fBidletasks\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 This command is used to bring the application
@@ -43,7 +42,9 @@ the application to respond to events such as user interactions;  if
 you occasionally call \fBupdate\fR then user input will be processed
 during the next call to \fBupdate\fR.
 .SH EXAMPLE
+.PP
 Run computations for about a second and then finish:
+.PP
 .CS
 set x 1000
 set done 0
@@ -58,9 +59,11 @@ while {!$done} {
     \fBupdate\fR
 }
 .CE
-
 .SH "SEE ALSO"
 after(n), interp(n)
-
 .SH KEYWORDS
-event, flush, handler, idle, update
+asynchronous I/O, event, flush, handler, idle, update
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/uplevel.n b/doc/uplevel.n
index 074f822..8687416 100644
--- a/doc/uplevel.n
+++ b/doc/uplevel.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH uplevel n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -24,9 +24,10 @@ the result of that evaluation.
 If \fIlevel\fR is an integer then
 it gives a distance (up the procedure calling stack) to move before
 executing the command.  If \fIlevel\fR consists of \fB#\fR followed by
-a number then the number gives an absolute level number.  If \fIlevel\fR
+a integer then the level gives an absolute level.  If \fIlevel\fR
 is omitted then it defaults to \fB1\fR.  \fILevel\fR cannot be
-defaulted if the first \fIcommand\fR argument starts with a digit or \fB#\fR.
+defaulted if the first \fIcommand\fR argument is an integer or starts
+with \fB#\fR.
 .PP
 For example, suppose that procedure \fBa\fR was invoked
 from top-level, and that it called \fBb\fR, and that \fBb\fR called \fBc\fR.
@@ -40,16 +41,20 @@ at top-level (only global variables will be visible).
 The \fBuplevel\fR command causes the invoking procedure to disappear
 from the procedure calling stack while the command is being executed.
 In the above example, suppose \fBc\fR invokes the command
+.PP
 .CS
 \fBuplevel\fR 1 {set x 43; d}
 .CE
+.PP
 where \fBd\fR is another Tcl procedure.  The \fBset\fR command will
 modify the variable \fBx\fR in \fBb\fR's context, and \fBd\fR will execute
 at level 3, as if called from \fBb\fR.  If it in turn executes
 the command
+.PP
 .CS
 \fBuplevel\fR {set x 42}
 .CE
+.PP
 then the \fBset\fR command will modify the same variable \fBx\fR in \fBb\fR's
 context:  the procedure \fBc\fR does not appear to be on the call stack
 when \fBd\fR is executing.  The \fBinfo level\fR command may
@@ -75,6 +80,7 @@ control constructs.  This example shows how (without error handling)
 it can be used to create a \fBdo\fR command that is the counterpart of
 \fBwhile\fR except for always performing the test after running the
 loop body:
+.PP
 .CS
 proc do {body while condition} {
     if {$while ne "while"} {
@@ -92,4 +98,7 @@ proc do {body while condition} {
 .SH "SEE ALSO"
 apply(n), namespace(n), upvar(n)
 .SH KEYWORDS
-context, level, namespace, stack frame, variables
+context, level, namespace, stack frame, variable
+.\" Local Variables:
+.\" mode: nroff
+.\" End:
diff --git a/doc/upvar.n b/doc/upvar.n
index 91db24a..6543be8 100644
--- a/doc/upvar.n
+++ b/doc/upvar.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH upvar n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,15 +14,13 @@ upvar \- Create link to variable in a different stack frame
 .SH SYNOPSIS
 \fBupvar \fR?\fIlevel\fR? \fIotherVar myVar \fR?\fIotherVar myVar \fR...?
 .BE
-
 .SH DESCRIPTION
 .PP
 This command arranges for one or more local variables in the current
 procedure to refer to variables in an enclosing procedure call or
 to global variables.
 \fILevel\fR may have any of the forms permitted for the \fBuplevel\fR
-command, and may be omitted if the first letter of the first \fIotherVar\fR
-is not \fB#\fR or a digit (it defaults to \fB1\fR).
+command, and may be omitted (it defaults to \fB1\fR).
 For each \fIotherVar\fR argument, \fBupvar\fR makes the variable
 by that name in the procedure frame given by \fIlevel\fR (or at
 global level, if \fIlevel\fR is \fB#0\fR) accessible
@@ -43,16 +41,18 @@ The \fBupvar\fR command simplifies the implementation of call-by-name
 procedure calling and also makes it easier to build new control constructs
 as Tcl procedures.
 For example, consider the following procedure:
+.PP
 .CS
 proc \fIadd2\fR name {
-   \fBupvar\fR $name x
-   set x [expr {$x + 2}]
+    \fBupvar\fR $name x
+    set x [expr {$x + 2}]
 }
 .CE
+.PP
 If \fIadd2\fR is invoked with an argument giving the name of a variable,
 it adds two to the value of that variable.
 Although \fIadd2\fR could have been implemented using \fBuplevel\fR
-instead of \fBupvar\fR, \fBupvar\fR makes it simpler for \fBadd2\fR
+instead of \fBupvar\fR, \fBupvar\fR makes it simpler for \fIadd2\fR
 to access the variable in the caller's procedure frame.
 .PP
 \fBnamespace eval\fR is another way (besides procedure calls)
@@ -60,7 +60,7 @@ that the Tcl naming context can change.
 It adds a call frame to the stack to represent the namespace context.
 This means each \fBnamespace eval\fR command
 counts as another call level for \fBuplevel\fR and \fBupvar\fR commands.
-For example, \fBinfo level 1\fR will return a list
+For example, \fBinfo level\fR \fB1\fR will return a list
 describing a command that is either
 the outermost procedure call or the outermost \fBnamespace eval\fR command.
 Also, \fBuplevel #0\fR evaluates a script
@@ -83,36 +83,37 @@ will be
 .QW "\fIlocalVar\fR"
 rather than
 .QW "\fIoriginalVar\fR" :
+.PP
 .CS
 proc \fItraceproc\fR { name index op } {
-   puts $name
+    puts $name
 }
 proc \fIsetByUpvar\fR { name value } {
-   \fBupvar\fR $name localVar
-   set localVar $value
+    \fBupvar\fR $name localVar
+    set localVar $value
 }
 set originalVar 1
-trace variable originalVar w \fItraceproc\fR
+trace add variable originalVar write \fItraceproc\fR
 \fIsetByUpvar\fR originalVar 2
 .CE
 .PP
-If \fIotherVar\fR refers to an element of an array, then variable
-traces set for the entire array will not be invoked when \fImyVar\fR
-is accessed (but traces on the particular element will still be
-invoked).  In particular, if the array is \fBenv\fR, then changes
-made to \fImyVar\fR will not be passed to subprocesses correctly.
+If \fIotherVar\fR refers to an element of an array, then the element
+name is passed as the second argument to the trace procedure. This
+may be important information in case of traces set on an entire array.
 .SH EXAMPLE
 A \fBdecr\fR command that works like \fBincr\fR except it subtracts
 the value from the variable instead of adding it:
+.PP
 .CS
 proc decr {varName {decrement 1}} {
     \fBupvar\fR 1 $varName var
     incr var [expr {-$decrement}]
 }
 .CE
-
 .SH "SEE ALSO"
 global(n), namespace(n), uplevel(n), variable(n)
-
 .SH KEYWORDS
-context, frame, global, level, namespace, procedure, variable
+context, frame, global, level, namespace, procedure, upvar, variable
+.\" Local Variables:
+.\" mode: nroff
+.\" End:
diff --git a/doc/variable.n b/doc/variable.n
index 6400c23..8228859 100644
--- a/doc/variable.n
+++ b/doc/variable.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH variable n 8.0 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -12,9 +12,10 @@
 .SH NAME
 variable \- create and initialize a namespace variable
 .SH SYNOPSIS
-\fBvariable \fR?\fIname value...\fR? \fIname \fR?\fIvalue\fR?
+\fBvariable \fR\fIname\fR
+.sp
+\fBvariable \fR?\fIname value...\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 This command is normally used within a
@@ -44,7 +45,8 @@ linked to the corresponding namespace variables (and therefore these
 variables are listed by \fBinfo vars\fR.)
 In this way the \fBvariable\fR command resembles the \fBglobal\fR command,
 although the \fBglobal\fR command
-only links to variables in the global namespace.
+resolves variable names with respect to the global namespace instead
+of the current namespace of the procedure.
 If any \fIvalue\fRs are given,
 they are used to modify the values of the associated namespace variables.
 If a namespace variable does not exist,
@@ -57,7 +59,9 @@ After the variable has been declared,
 elements within the array can be set using ordinary
 \fBset\fR or \fBarray\fR commands.
 .SH EXAMPLES
+.PP
 Create a variable in a namespace:
+.PP
 .CS
 namespace eval foo {
     \fBvariable\fR bar 12345
@@ -65,6 +69,7 @@ namespace eval foo {
 .CE
 .PP
 Create an array in a namespace:
+.PP
 .CS
 namespace eval someNS {
     \fBvariable\fR someAry
@@ -76,6 +81,7 @@ namespace eval someNS {
 .CE
 .PP
 Access variables in namespaces from a procedure:
+.PP
 .CS
 namespace eval foo {
     proc spong {} {
@@ -89,9 +95,11 @@ namespace eval foo {
     }
 }
 .CE
-
 .SH "SEE ALSO"
 global(n), namespace(n), upvar(n)
-
 .SH KEYWORDS
 global, namespace, procedure, variable
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
diff --git a/doc/vwait.n b/doc/vwait.n
index f516d46..1ff6caa 100644
--- a/doc/vwait.n
+++ b/doc/vwait.n
@@ -3,7 +3,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH vwait n 8.0 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -11,46 +11,139 @@
 .SH NAME
 vwait \- Process events until a variable is written
 .SH SYNOPSIS
-\fBvwait\fR \fIvarName\fR
+\fBvwait\fI varName\fR
+.sp
+\fBvwait\fR ?\fIoptions\fR? ?\fIvarName ...\fR?
 .BE
-
 .SH DESCRIPTION
 .PP
 This command enters the Tcl event loop to process events, blocking
 the application if no events are ready.  It continues processing
-events until some event handler sets the value of variable
+events until some event handler sets the value of the global variable
 \fIvarName\fR.  Once \fIvarName\fR has been set, the \fBvwait\fR
 command will return as soon as the event handler that modified
-\fIvarName\fR completes.  \fIvarName\fR must be globally scoped
-(either with a call to \fBglobal\fR for the \fIvarName\fR, or with
-the full namespace path specification).
+\fIvarName\fR completes.  The \fIvarName\fR argument is always interpreted as
+a variable name with respect to the global namespace, but can refer to any
+namespace's variables if the fully-qualified name is given.
+.PP
+In the second more complex command form \fIoptions\fR allow for finer
+control of the wait operation and to deal with multiple event sources.
+\fIOptions\fR can be made up of:
+.\" OPTION: --
+.TP
+\fB\-\-\fR
+.
+Marks the end of options. All following arguments are handled as
+variable names.
+.\" OPTION: -all
+.TP
+\fB\-all\fR
+.
+All conditions for the wait operation must be met to complete the
+wait operation. Otherwise (the default) the first event completes
+the wait.
+.\" OPTION: -extended
+.TP
+\fB\-extended\fR
+.
+An extended result in list form is returned, see below for explanation.
+.\" OPTION: -nofileevents
+.TP
+\fB\-nofileevents\fR
+.
+File events are not handled in the wait operation.
+.\" OPTION: -noidleevents
+.TP
+\fB\-noidleevents\fR
+.
+Idle handlers are not invoked during the wait operation.
+.\" OPTION: -notimerevents
+.TP
+\fB\-notimerevents\fR
+.
+Timer handlers are not serviced during the wait operation.
+.\" OPTION: -nowindowevents
+.TP
+\fB\-nowindowevents\fR
+.
+Events of the windowing system are not handled during the wait operation.
+.\" OPTION: -readable
+.TP
+\fB\-readable\fI channel\fR
+.
+\fIChannel\fR must name a Tcl channel open for reading. If \fIchannel\fR
+is or becomes readable the wait operation completes.
+.\" OPTION: -timeout
+.TP
+\fB\-timeout\fI milliseconds\fR
+.
+The wait operation is constrained to \fImilliseconds\fR.
+.\" OPTION: -variable
+.TP
+\fB\-variable\fI varName\fR
+.
+\fIVarName\fR must be the name of a global variable. Writing or
+unsetting this variable completes the wait operation.
+.\" OPTION: -writable
+.TP
+\fB\-writable\fI channel\fR
+.
+\fIChannel\fR must name a Tcl channel open for writing. If \fIchannel\fR
+is or becomes writable the wait operation completes.
+.PP
+The result returned by \fBvwait\fR is for the simple form an empty
+string. If the \fB\-timeout\fR option is specified, the result is the
+number of milliseconds remaining when the wait condition has been
+met, or -1 if the wait operation timed out.
+.PP
+If the \fB\-extended\fR option is specified, the result is made up
+of a Tcl list with an even number of elements. Odd elements
+take the values \fBreadable\fR, \fBtimeleft\fR, \fBvariable\fR,
+and \fBwritable\fR. Even elements are the corresponding variable
+and channel names or the remaining number of milliseconds.
+The list is ordered by the occurrences of the event(s) with the
+exception of \fBtimeleft\fR which always comes last.
 .PP
 In some cases the \fBvwait\fR command may not return immediately
-after \fIvarName\fR is set.  This can happen if the event handler
+after \fIvarName\fR et.al. is set. This happens if the event handler
 that sets \fIvarName\fR does not complete immediately.  For example,
 if an event handler sets \fIvarName\fR and then itself calls
 \fBvwait\fR to wait for a different variable, then it may not return
 for a long time.  During this time the top-level \fBvwait\fR is
 blocked waiting for the event handler to complete, so it cannot
-return either.
+return either. (See the \fBNESTED VWAITS BY EXAMPLE\fR below.)
+.PP
+To be clear, \fImultiple \fBvwait\fI calls will nest and will not happen in
+parallel\fR.  The outermost call to \fBvwait\fR will not return until all the
+inner ones do.  It is recommended that code should never nest \fBvwait\fR
+calls (by avoiding putting them in event callbacks) but when that is not
+possible, care should be taken to add interlock variables to the code to
+prevent all reentrant calls to \fBvwait\fR that are not \fIstrictly\fR
+necessary. Be aware that the synchronous modes of operation of some Tcl
+packages (e.g.,\ \fBhttp\fR) use \fBvwait\fR internally; if using the event
+loop, it is best to use the asynchronous callback-based modes of operation of
+those packages where available.
 .SH EXAMPLES
+.PP
 Run the event-loop continually until some event calls \fBexit\fR.
 (You can use any variable not mentioned elsewhere, but the name
 \fIforever\fR reminds you at a glance of the intent.)
+.PP
 .CS
 \fBvwait\fR forever
 .CE
 .PP
 Wait five seconds for a connection to a server socket, otherwise
 close the socket and continue running the script:
+.PP
 .CS
 # Initialise the state
 after 5000 set state timeout
 set server [socket -server accept 12345]
 proc accept {args} {
-   global state connectionInfo
-   set state accepted
-   set connectionInfo $args
+    global state connectionInfo
+    set state accepted
+    set connectionInfo $args
 }
 
 # Wait for something to happen
@@ -62,18 +155,172 @@ after cancel set state timeout
 
 # Do something based on how the vwait finished...
 switch $state {
-   timeout {
-      puts "no connection on port 12345"
-   }
-   accepted {
-      puts "connection: $connectionInfo"
-      puts [lindex $connectionInfo 0] "Hello there!"
-   }
+    timeout {
+        puts "no connection on port 12345"
+    }
+    accepted {
+       puts "connection: $connectionInfo"
+       puts [lindex $connectionInfo 0] "Hello there!"
+    }
+}
+.CE
+.PP
+A command that will wait for some time delay by waiting for a namespace
+variable to be set.  Includes an interlock to prevent nested waits.
+.PP
+.CS
+namespace eval example {
+    variable v done
+    proc wait {delay} {
+        variable v
+        if {$v ne "waiting"} {
+            set v waiting
+            after $delay [namespace code {set v done}]
+            \fBvwait\fR [namespace which -variable v]
+        }
+        return $v
+    }
+}
+.CE
+.PP
+When running inside a \fBcoroutine\fR, an alternative to using \fBvwait\fR is
+to \fByield\fR to an outer event loop and to get recommenced when the variable
+is set, or at an idle moment after that.
+.PP
+.CS
+coroutine task apply {{} {
+    # simulate [after 1000]
+    after 1000 [info coroutine]
+    yield
+
+    # schedule the setting of a global variable, as normal
+    after 2000 {set var 1}
+
+    # simulate [\fBvwait\fR var]
+    proc updatedVar {task args} {
+        after idle $task
+        trace remove variable ::var write "updatedVar $task"
+    }
+    trace add variable ::var write "updatedVar [info coroutine]"
+    yield
+}}
+.CE
+.SS "NESTED VWAITS BY EXAMPLE"
+.PP
+This example demonstrates what can happen when the \fBvwait\fR command is
+nested. The script will never finish because the waiting for the \fIa\fR
+variable never finishes; that \fBvwait\fR command is still waiting for a
+script scheduled with \fBafter\fR to complete, which just happens to be
+running an inner \fBvwait\fR (for \fIb\fR) even though the event that the
+outer \fBvwait\fR was waiting for (the setting of \fIa\fR) has occurred.
+.PP
+.CS
+after 500 {
+    puts "waiting for b"
+    \fBvwait\fR b
+    puts "b was set"
+}
+after 1000 {
+    puts "setting a"
+    set a 10
 }
+puts "waiting for a"
+\fBvwait\fR a
+puts "a was set"
+puts "setting b"
+set b 42
+.CE
+.PP
+If you run the above code, you get this output:
+.PP
+.CS
+waiting for a
+waiting for b
+setting a
 .CE
+.PP
+The script will never print
+.QW "a was set"
+until after it has printed
+.QW "b was set"
+because of the nesting of \fBvwait\fR commands, and yet \fIb\fR will not be
+set until after the outer \fBvwait\fR returns, so the script has deadlocked.
+The only ways to avoid this are to either structure the overall program in
+continuation-passing style or to use \fBcoroutine\fR to make the continuations
+implicit. The first of these options would be written as:
+.PP
+.CS
+after 500 {
+    puts "waiting for b"
+    trace add variable b write {apply {args {
+        global a b
+        trace remove variable ::b write \e
+                [lrange [info level 0] 0 1]
+        puts "b was set"
+        set ::done ok
+    }}}
+}
+after 1000 {
+    puts "setting a"
+    set a 10
+}
+puts "waiting for a"
+trace add variable a write {apply {args {
+    global a b
+    trace remove variable a write [lrange [info level 0] 0 1]
+    puts "a was set"
+    puts "setting b"
+    set b 42
+}}}
+\fBvwait\fR done
+.CE
+.PP
+The second option, with \fBcoroutine\fR and some helper procedures, is done
+like this:
+.PP
+.CS
+# A coroutine-based wait-for-variable command
+proc waitvar globalVar {
+    trace add variable ::$globalVar write \e
+            [list apply {{v c args} {
+        trace remove variable $v write \e
+                [lrange [info level 0] 0 3]
+        after 0 $c
+    }} ::$globalVar [info coroutine]]
+    yield
+}
+# A coroutine-based wait-for-some-time command
+proc waittime ms {
+    after $ms [info coroutine]
+    yield
+}
 
+coroutine task-1 eval {
+    puts "waiting for a"
+    waitvar a
+    puts "a was set"
+    puts "setting b"
+    set b 42
+}
+coroutine task-2 eval {
+    waittime 500
+    puts "waiting for b"
+    waitvar b
+    puts "b was set"
+    set done ok
+}
+coroutine task-3 eval {
+    waittime 1000
+    puts "setting a"
+    set a 10
+}
+\fBvwait\fR done
+.CE
 .SH "SEE ALSO"
 global(n), update(n)
-
 .SH KEYWORDS
-event, variable, wait
+asynchronous I/O, event, variable, wait
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/while.n b/doc/while.n
index da49853..bacc782 100644
--- a/doc/while.n
+++ b/doc/while.n
@@ -4,7 +4,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH while n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,7 +14,6 @@ while \- Execute script repeatedly as long as a condition is met
 .SH SYNOPSIS
 \fBwhile \fItest body\fR
 .BE
-
 .SH DESCRIPTION
 .PP
 The \fBwhile\fR command evaluates \fItest\fR as an expression
@@ -31,7 +30,7 @@ commands may be executed inside \fIbody\fR to cause immediate
 termination of the \fBwhile\fR command.  The \fBwhile\fR command
 always returns an empty string.
 .PP
-Note: \fItest\fR should almost always be enclosed in braces.  If not,
+Note that \fItest\fR should almost always be enclosed in braces.  If not,
 variable substitutions will be made before the \fBwhile\fR
 command starts executing, which means that variable changes
 made by the loop body will not be considered in the expression.
@@ -41,6 +40,7 @@ expression is evaluated (before
 each loop iteration), so changes in the variables will be visible.
 For an example, try the following script with and without the braces
 around \fB$x<10\fR:
+.PP
 .CS
 set x 0
 \fBwhile\fR {$x<10} {
@@ -49,17 +49,21 @@ set x 0
 }
 .CE
 .SH EXAMPLE
+.PP
 Read lines from a channel until we get to the end of the stream, and
 print them out with a line-number prepended:
+.PP
 .CS
 set lineCount 0
 \fBwhile\fR {[gets $chan line] >= 0} {
     puts "[incr lineCount]: $line"
 }
 .CE
-
 .SH "SEE ALSO"
 break(n), continue(n), for(n), foreach(n)
-
 .SH KEYWORDS
-boolean value, loop, test, while
+boolean, loop, test, while
+'\" Local Variables:
+'\" mode: nroff
+'\" fill-column: 78
+'\" End:
diff --git a/doc/zipfs.3 b/doc/zipfs.3
new file mode 100644
index 0000000..f498e07
--- /dev/null
+++ b/doc/zipfs.3
@@ -0,0 +1,134 @@
+'\"
+'\" Copyright (c) 2015 Jan Nijtmans <jan.nijtmans@gmail.com>
+'\" Copyright (c) 2015 Christian Werner <chw@ch-werner.de>
+'\" Copyright (c) 2017 Sean Woods <yoda@etoyoc.com>
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH Tclzipfs 3 9.0 Tcl "Tcl Library Procedures"
+.so man.macros
+.BS
+.SH NAME
+TclZipfs_AppHook, TclZipfs_Mount, TclZipfs_MountBuffer, TclZipfs_Unmount \- handle ZIP files as Tcl virtual filesystems
+.SH SYNOPSIS
+.nf
+const char *
+\fBTclZipfs_AppHook\fR(\fIargcPtr, argvPtr\fR)
+.sp
+int
+\fBTclZipfs_Mount\fR(\fIinterp, zipname, mountpoint, password\fR)
+.sp
+int
+\fBTclZipfs_MountBuffer\fR(\fIinterp, data, dataLen, mountpoint, copy\fR)
+.sp
+int
+\fBTclZipfs_Unmount\fR(\fIinterp, mountpoint\fR)
+.fi
+.SH ARGUMENTS
+.AS Tcl_Interp *mountpoint in
+.AP "int" *argcPtr in
+Pointer to a variable holding the number of command line arguments from
+\fBmain\fR().
+.AP "char" ***argvPtr in
+Pointer to an array of strings containing the command line arguments to
+\fBmain\fR().
+.AP Tcl_Interp *interp in
+Interpreter in which the ZIP file system is mounted.  The interpreter's result is
+modified to hold the result or error message from the script.
+.AP "const char" *zipname in
+Name of a ZIP file. Must not be NULL when either mounting or unmounting a ZIP.
+.AP "const char" *mountpoint in
+Name of a mount point, which must be a legal Tcl file or directory name. May
+be NULL to query current mount points.
+.AP "const char" *password in
+An (optional) password. Use NULL if no password is wanted to read the file.
+.AP "const void" *data in
+A data buffer to mount. The data buffer must hold the contents of a ZIP
+archive, and must not be NULL.
+.AP size_t dataLen in
+The number of bytes in the supplied data buffer argument, \fIdata\fR.
+.AP int copy in
+If non-zero, the ZIP archive in the data buffer will be internally copied
+before mounting, allowing the data buffer to be disposed once
+\fBTclZipfs_MountBuffer\fR returns. If zero, the caller guarantees that the
+buffer will be valid to read from for the duration of the mount.
+.BE
+.SH DESCRIPTION
+\fBTclZipfs_AppHook\fR is a utility function to perform standard application
+initialization procedures, taking into account available ZIP archives as
+follows:
+.IP [1]
+If the current application has a mountable ZIP archive, that archive is
+mounted under \fIZIPFS_VOLUME\fB/app\fR as a read-only Tcl virtual file
+system (VFS). The value of \fIZIPFS_VOLUME\fR can be retrieved using the
+Tcl command \fBzipfs root\fR.
+.IP [2]
+If a file named \fBmain.tcl\fR is located in the root directory of that file
+system (i.e., at \fIZIPFS_VOLUME\fB/app/main.tcl\fR after the ZIP archive is
+mounted as described above) it is treated as the startup script for the
+process.
+.IP [3]
+If the file \fIZIPFS_VOLUME\fB/app/tcl_library/init.tcl\fR is present, the
+\fBtcl_library\fR global variable in the initial Tcl interpreter is set to
+\fIZIPFS_VOLUME\fB/app/tcl_library\fR.
+.IP [4]
+If the directory \fBtcl_library\fR was not found in the main application
+mount, the system will then search for it as either a VFS attached to the
+application dynamic library, or as a zip archive named
+\fBlibtcl_\fImajor\fB_\fIminor\fB_\fIpatchlevel\fB.zip\fR either in the
+present working directory or in the standard Tcl install location. (For
+example, the Tcl 9.0.2 release would be searched for in a file
+\fBlibtcl_9_0_2.zip\fR.) That archive, if located, is also mounted read-only.
+.PP
+On Windows, \fBTclZipfs_AppHook\fR has a slightly different signature, since
+it uses WCHAR instead of char. As a result, it requires the application to
+be compiled with the UNICODE preprocessor symbol defined (e.g., via the
+\fB\-DUNICODE\fR compiler flag).
+.PP
+The result of \fBTclZipfs_AppHook\fR is the full Tcl version with build
+information (e.g., \fB9.0.0+abcdef...abcdef.gcc-1002\fR).
+The function \fImay\fR modify the variables pointed to by \fIargcPtr\fR and
+\fIargvPtr\fR to remove arguments; the current implementation does not do so,
+but callers \fIshould not\fR assume that this will be true in the future.
+.PP
+\fBTclZipfs_Mount\fR is used to mount ZIP archives and to retrieve information
+about currently mounted archives. If \fImountpoint\fR and \fIzipname\fR are both
+specified (i.e. non-NULL), the function mounts the ZIP archive \fIzipname\fR on
+the mount point given in \fImountpoint\fR. If \fIpassword\fR is not NULL, it
+should point to the NUL terminated password protecting the archive. If not under
+the zipfs file system root, \fImountpoint\fR is normalized with respect to it.
+For example, a mount point passed as either \fBmt\fR or \fB/mt\fR would be
+normalized to \fB//zipfs:/mt\fR, given that \fIZIPFS_VOLUME\fR as returned
+by \fBzipfs root\fR is
+.QW //zipfs:/ .
+An error is raised if the mount point includes
+a drive or UNC volume. On success, \fIinterp\fR's result is set to the
+normalized mount point path.
+.PP
+If \fImountpoint\fR is a NULL pointer, information on all currently mounted ZIP
+file systems is stored in \fIinterp\fR's result as a sequence of mount
+points and ZIP file names.
+.PP
+If \fImountpoint\fR is not NULL but \fIzipfile\fR
+is NULL, the path to the archive mounted at that mount point is stored
+as \fIinterp\fR's result. The function returns a standard Tcl result
+code.
+.PP
+\fBTclZipfs_MountBuffer\fR mounts the ZIP archive content \fIdata\fR on the
+mount point given in \fImountpoint\fR. Both \fImountpoint\fR and \fIdata\fR must
+be specified as non-NULL. The \fIcopy\fR argument determines whether the buffer
+is internally copied before mounting or not. The ZIP archive is assumed to be
+not password protected. On success, \fIinterp\fR's result is set to the
+normalized mount point path.
+.PP
+\fBTclZipfs_Unmount\fR undoes the effect of \fBTclZipfs_Mount\fR, i.e., it
+unmounts the mounted ZIP file system that was mounted from \fIzipname\fR (at
+\fImountpoint\fR). Errors are reported in the interpreter \fIinterp\fR.  The
+result of this call is a standard Tcl result code.
+.PP
+\fBTclZipfs_AppHook\fR can not be used in stub-enabled extensions.
+.SH "SEE ALSO"
+zipfs(n)
+.SH KEYWORDS
+compress, filesystem, zip
diff --git a/doc/zipfs.n b/doc/zipfs.n
new file mode 100644
index 0000000..dd8332d
--- /dev/null
+++ b/doc/zipfs.n
@@ -0,0 +1,331 @@
+'\"
+'\" Copyright (c) 2015 Jan Nijtmans <jan.nijtmans@gmail.com>
+'\" Copyright (c) 2015 Christian Werner <chw@ch-werner.de>
+'\" Copyright (c) 2015 Sean Woods <yoda@etoyoc.com>
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH zipfs n 1.0 Zipfs "zipfs Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+zipfs \- Mount and work with ZIP files within Tcl
+.SH SYNOPSIS
+.nf
+\fBzipfs canonical\fR ?\fImountpoint\fR? \fIfilename\fR
+\fBzipfs exists\fI filename\fR
+\fBzipfs find\fI directoryName\fR
+\fBzipfs info\fI filename\fR
+\fBzipfs list\fR ?(\fB\-glob\fR|\fB\-regexp\fR)? ?\fIpattern\fR?
+\fBzipfs lmkimg\fI outfile inlist\fR ?\fIpassword\fR? ?\fIinfile\fR?
+\fBzipfs lmkzip\fI outfile inlist\fR ?\fIpassword\fR?
+\fBzipfs mkimg\fI outfile indir\fR ?\fIstrip\fR? ?\fIpassword\fR? ?\fIinfile\fR?
+\fBzipfs mkkey\fI password\fR
+\fBzipfs mkzip\fI outfile indir\fR ?\fIstrip\fR? ?\fIpassword\fR?
+\fBzipfs mount\fR ?\fIzipfile\fR? ?\fImountpoint\fR? ?\fIpassword\fR?
+\fBzipfs mountdata\fR \fIdata\fR \fImountpoint\fR
+\fBzipfs root\fR
+\fBzipfs unmount\fI mountpoint\fR
+.fi
+.BE
+.SH DESCRIPTION
+.PP
+The \fBzipfs\fR command provides Tcl with the ability to mount the
+contents of a ZIP archive file as a virtual file system. Tcl's ZIP
+archive support is limited to basic features and options.
+Supported storage methods include only STORE and DEFLATE with optional
+simple encryption, sufficient to prevent casual inspection of their contents
+but not able to prevent access by even a moderately determined attacker.
+Strong encryption, multi-part archives, platform metadata,
+zip64 formats and other compression methods like bzip2 are not supported.
+.PP
+Files within mounted archives can be written to but new files or directories
+cannot be created. Further, modifications to files are limited to the
+mounted archive in memory and are not persisted to disk.
+.PP
+Paths in mounted archives are case-sensitive on all platforms.
+.\" METHOD: canonical
+.TP
+\fBzipfs canonical\fR ?\fImountpoint\fR? \fIfilename\fR
+.
+This takes the name of a file, \fIfilename\fR, and produces where it would be
+mapped into a zipfs mount as its result. If specified, \fImountpoint\fR says
+within which mount the mapping will be done; if omitted, the main root of the
+zipfs system is used.
+.\" METHOD: exists
+.TP
+\fBzipfs exists\fI filename\fR
+.
+Return 1 if the given filename exists in the mounted zipfs and 0 if it does not.
+.\" METHOD: find
+.TP
+\fBzipfs find\fI directoryName\fR
+.
+Returns the list of paths under directory \fIdirectoryName\fR which need not be
+within a zipfs mounted archive. The paths are prefixed with \fIdirectoryName\fR.
+This command is also used by the \fBzipfs mkzip\fR and \fBzipfs mkimg\fR
+commands.
+.\" METHOD: info
+.TP
+\fBzipfs info\fI file\fR
+.
+Return information about the given \fIfile\fR in the mounted zipfs.  The
+information consists of:
+.RS
+.IP (1)
+the name of the ZIP archive file that contains the file,
+.IP (2)
+the size of the file after decompressions,
+.IP (3)
+the compressed size of the file, and
+.IP (4)
+the offset of the compressed data in the ZIP archive file.
+.PP
+As a special case, querying the mount point gives the start of the zip data
+as the offset in (4), which can be used to truncate the zip information from
+an executable. Querying an ancestor of a mount point will raise an error.
+.RE
+.\" METHOD: list
+.TP
+\fBzipfs list\fR ?(\fB\-glob\fR|\fB\-regexp\fR)? ?\fIpattern\fR?
+.
+If \fIpattern\fR is not specified, the command returns a list of files across
+all zipfs mounted archives. If \fIpattern\fR is specified, only those paths
+matching the pattern are returned. By default, or with the \fB\-glob\fR option,
+the pattern is treated as a glob pattern and matching is done as described for
+the \fBstring match\fR command. Alternatively, the \fB\-regexp\fR option may be
+used to specify matching \fBpattern\fR as a regular expression. The file names
+are returned in arbitrary order. Note that path separators are treated as
+ordinary characters in the matching. Thus forward slashes should be used
+as path separators in the pattern. The returned paths only include those
+actually in the archive and does not include intermediate directories in
+mount paths.
+.\" METHOD: mount
+.TP
+\fBzipfs mount\fR
+.TP
+\fBzipfs mount\fI mountpoint\fR
+.TP
+\fBzipfs mount\fI zipfile mountpoint\fR ?\fIpassword\fR?
+.RS
+.PP
+The \fBzipfs mount\fR command mounts ZIP archives as Tcl virtual file systems
+and returns information about current mounts.
+.PP
+With no arguments, the command returns a dictionary mapping
+mount points to the path of the corresponding ZIP archive.
+.PP
+In the single argument form, the command returns the file path
+of the ZIP archive mounted at the specified mount point.
+.PP
+In the third form, the command mounts the ZIP archive \fIzipfile\fR as a Tcl
+virtual filesystem at \fImountpoint\fR.  After this command executes, files
+contained in \fIzipfile\fR will appear to Tcl to be regular files at the
+mount point. If \fImountpoint\fR is
+specified as an empty string, it is defaulted to the \fB[zipfs root]\fR.
+The command returns the normalized mount point path.
+.PP
+If not under the zipfs file system root, \fImountpoint\fR is normalized with
+respect to it. For example, a mount point passed as either \fBmt\fR or \fB/mt\fR
+would be normalized to \fB//zipfs:/mt\fR (given that \fBzipfs root\fR
+returns
+.QW //zipfs:/ ).
+An error is raised if the mount point includes a drive or UNC volume.
+.PP
+\fBNB:\fR because the current working directory is a concept maintained by the
+operating system, using \fBcd\fR into a mounted archive will only work in the
+current process, and then not entirely consistently (e.g., if a shared library
+uses direct access to the OS rather than through Tcl's filesystem API, it will
+not see the current directory as being inside the mount and will not be able
+to access the files inside the mount).
+.RE
+.\" METHOD: mountdata
+.TP
+\fBzipfs mountdata\fR \fIdata\fR \fImountpoint\fR
+Mounts the ZIP archive content \fIdata\fR as a Tcl virtual filesystem at
+\fImountpoint\fR.
+.\" METHOD: root
+.TP
+\fBzipfs root\fR
+.
+Returns a constant string which indicates the mount point for zipfs volumes
+for the current platform. User should not rely on the mount point being
+the same constant string for all platforms.
+.\" METHOD: unmount
+.TP
+\fBzipfs unmount \fImountpoint\fR
+.
+Unmounts a previously mounted ZIP archive mounted to \fImountpoint\fR.
+The command will fail with an error exception if
+there are any files within the mounted archive are open.
+.SS "ZIP CREATION COMMANDS"
+This package also provides several commands to aid the creation of ZIP
+archives as Tcl applications.
+.\" METHOD: mkzip
+.TP
+\fBzipfs mkzip\fI outfile indir\fR ?\fIstrip\fR? ?\fIpassword\fR?
+.
+Creates a ZIP archive file named \fIoutfile\fR from the contents of the input
+directory \fIindir\fR (contained regular files only) with optional ZIP
+password \fIpassword\fR. While processing the files below \fIindir\fR the
+optional file name prefix given in \fIstrip\fR is stripped off the beginning
+of the respective file name if non-empty.  When stripping, it is common to remove either
+the whole source directory name or the name of its parent directory.
+.RS
+.PP
+\fBCaution:\fR the choice of the \fIindir\fR parameter (less the optional
+stripped prefix) determines the later root name of the archive's content.
+.RE
+.\" METHOD: mkimg
+.TP
+\fBzipfs mkimg\fI outfile indir\fR ?\fIstrip\fR? ?\fIpassword\fR? ?\fIinfile\fR?
+.
+Creates an image (potentially a new executable file) similar to \fBzipfs
+mkzip\fR; see that command for a description of most parameters to this
+command, as they behave identically here. If \fIoutfile\fR exists, it will
+be silently overwritten.
+.RS
+.PP
+If the \fIinfile\fR parameter is specified, this file is prepended in front of
+the ZIP archive, otherwise the file returned by \fBinfo nameofexecutable\fR
+(i.e., the executable file of the running process,
+typically \fBwish\fR or \fBtclsh\fR) is used. If the
+\fIpassword\fR parameter is not the empty string, an obfuscated version of that password
+(see \fBzipfs mkkey\fR) is placed between the image and ZIP chunks of the
+output file and the contents of the ZIP chunk are protected with that
+password.
+If the starting image has a ZIP archive already attached to it, it is removed
+from the copy in \fIoutfile\fR before the new ZIP archive is added.
+.PP
+If there is a file, \fBmain.tcl\fR, in the root directory of the resulting
+archive and the image file that the archive is attached to is a \fBtclsh\fR
+(or \fBwish\fR) instance (true by default, but depends on your configuration),
+then the resulting image is an executable that will \fBsource\fR the script in
+that \fBmain.tcl\fR after mounting the ZIP archive, and will \fBexit\fR once
+that script has been executed.
+.PP
+\fBNote:\fR \fBtclsh\fR and \fBwish\fR can be built using either
+dynamic binding or static binding of the core implementation
+libraries. With a dynamic binding, the base application Tcl_Library
+contents are attached to the \fBlibtcl\fR and \fBlibtk\fR shared
+library, respectively. With a static binding, the Tcl_Library
+contents, etc., are attached to the application, \fBtclsh\fR or
+\fBwish\fR. When using \fBmkimg\fR with a statically built tclsh, it is
+the user's responsibility to preserve the attached archive by first
+extracting it to a temporary location, and then add whatever
+additional files desired, before creating and attaching the new
+archive to the new application.
+.RE
+.\" METHOD: mkkey
+.TP
+\fBzipfs mkkey\fI password\fR
+.
+Given the clear text \fIpassword\fR argument, an obfuscated string version is
+returned with the same format used in the \fBzipfs mkimg\fR command.
+.\" METHOD: lmkimg
+.TP
+\fBzipfs lmkimg\fI outfile inlist\fR ?\fIpassword\fR? ?\fIinfile\fR?
+.
+This command is like \fBzipfs mkimg\fR, but instead of an input directory,
+\fIinlist\fR must be a Tcl list where the odd elements are the names of files
+to be copied into the archive in the image, and the even elements are their
+respective names within that archive.
+.\" METHOD: lmkzip
+.TP
+\fBzipfs lmkzip\fI outfile inlist\fR ?\fIpassword\fR?
+.
+This command is like \fBzipfs mkzip\fR, but instead of an input directory,
+\fIinlist\fR must be a Tcl list where the odd elements are the names of files
+to be copied into the archive, and the even elements are their respective
+names within that archive.
+.SH "NOTE"
+.PP
+The current syntax for certain subcommands using multiple optional parameters might
+change in the future to support an \fI?-option value?\fR pattern instead.
+Therfore, the current syntax should not be considered stable.
+.SH "EXAMPLES"
+.PP
+Mounting an ZIP archive as an application directory and running code out of it
+before unmounting it again:
+.PP
+.CS
+set zip myApp.zip
+set base [file join [\fBzipfs root\fR] myApp]
+
+\fBzipfs mount\fR $zip $base
+# $base now has the contents of myApp.zip
+
+source [file join $base app.tcl]
+# use the contents, load libraries from it, etc...
+
+\fBzipfs unmount\fR $base
+.CE
+.PP
+Creating a ZIP archive, given that a directory exists containing the content
+to put in the archive. Note that the source directory is given twice, in order
+to strip the exterior directory name from each filename in the archive.
+.PP
+.CS
+set sourceDirectory [file normalize myApp]
+set targetZip myApp.zip
+
+\fBzipfs mkzip\fR $targetZip $sourceDirectory $sourceDirectory
+.CE
+.PP
+Encryption can be applied to ZIP archives by providing a password when
+building the ZIP and when mounting it.
+.PP
+.CS
+set zip myApp.zip
+set sourceDir [file normalize myApp]
+set password "hunter2"
+set base [file join [\fBzipfs root\fR] myApp]
+
+# Create with password
+\fBzipfs mkzip\fR $targetZip $sourceDir $sourceDir $password
+
+# Mount with password
+\fBzipfs mount\fR $zip $base $password
+.CE
+.PP
+The following example creates an executable application by appending a ZIP archive
+to the tclsh file it was called from and storing the resulting executable in
+the file
+.QW myApp.bin .
+When creating an executable image with a password, the password is placed
+within the executable in a shrouded form so that the application can read
+files inside the embedded ZIP archive yet casual inspection cannot read it.
+.PP
+.CS
+set appDir [file normalize myApp]
+set img "myApp.bin"
+set password "hunter2"
+
+# Create some simple content to define a basic application
+file mkdir $appDir
+set f [open $appDir/main.tcl w]
+puts $f {
+    puts "Hi. This is [info script]"
+}
+close $f
+
+# Create the executable application
+\fBzipfs mkimg\fR $img $appDir $appDir $password
+
+# remove the now obsolete temporary appDir folder
+file delete -force $appDir
+
+# Launch the executable, printing its output to stdout
+exec $img >@stdout
+# prints the following line assuming [zipfs root] returns "//zipfs:/":
+# \fIHi. This is //zipfs:/app/main.tcl\fR
+.CE
+.SH "SEE ALSO"
+tclsh(1), file(n), zipfs(3), zlib(n)
+.SH "KEYWORDS"
+compress, filesystem, zip
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/doc/zlib.n b/doc/zlib.n
new file mode 100644
index 0000000..c8349d3
--- /dev/null
+++ b/doc/zlib.n
@@ -0,0 +1,456 @@
+'\"
+'\" Copyright (c) 2008-2012 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.TH zlib n 8.6 Tcl "Tcl Built-In Commands"
+.so man.macros
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+zlib \- compression and decompression operations
+.SH SYNOPSIS
+.nf
+\fBzlib \fIsubcommand arg ...\fR
+.fi
+.BE
+.SH DESCRIPTION
+.PP
+The \fBzlib\fR command provides access to the compression and check-summing
+facilities of the Zlib library by Jean-loup Gailly and Mark Adler. It has the
+following subcommands.
+.SS "COMPRESSION SUBCOMMANDS"
+.\" METHOD: compress
+.TP
+\fBzlib compress\fI string\fR ?\fIlevel\fR?
+.
+Returns the zlib-format compressed binary data of the binary string in
+\fIstring\fR. If present, \fIlevel\fR gives the compression level to use (from
+0, which is uncompressed, to 9, maximally compressed).
+.\" METHOD: decompress
+.TP
+\fBzlib decompress\fI string\fR ?\fIbufferSize\fR?
+.
+Returns the uncompressed version of the raw compressed binary data in
+\fIstring\fR. If present, \fIbufferSize\fR is a hint as to what size of buffer
+is to be used to receive the data.
+.\" METHOD: deflate
+.TP
+\fBzlib deflate\fI string\fR ?\fIlevel\fR?
+.
+Returns the raw compressed binary data of the binary string in \fIstring\fR.
+If present, \fIlevel\fR gives the compression level to use (from 0, which is
+uncompressed, to 9, maximally compressed).
+.\" METHOD: gunzip
+.TP
+\fBzlib gunzip\fI string\fR ?\fB\-headerVar \fIvarName\fR?
+.
+Return the uncompressed contents of binary string \fIstring\fR, which must
+have been in gzip format. If \fB\-headerVar\fR is given, store a dictionary
+describing the contents of the gzip header in the variable called
+\fIvarName\fR. The keys of the dictionary that may be present are:
+.RS
+.IP \fBcomment\fR
+The comment field from the header, if present.
+.IP \fBcrc\fR
+A boolean value describing whether a CRC of the header is computed.
+.IP \fBfilename\fR
+The filename field from the header, if present.
+.IP \fBos\fR
+The operating system type code field from the header (if not the
+QW unknown
+value). See RFC 1952 for the meaning of these codes.
+.IP \fBsize\fR
+The size of the uncompressed data.
+.IP \fBtime\fR
+The time field from the header if non-zero, expected to be time that the file
+named by the \fBfilename\fR field was modified. Suitable for use with
+\fBclock format\fR.
+.IP \fBtype\fR
+The type of the uncompressed data (\fBbinary\fR or \fBtext\fR) if known.
+.RE
+.\" METHOD: gzip
+.TP
+\fBzlib gzip\fI string\fR ?\fB\-level \fIlevel\fR? ?\fB\-header \fIdict\fR?
+.
+Return the compressed contents of binary string \fIstring\fR in gzip format.
+If \fB\-level\fR is given, \fIlevel\fR gives the compression level to use
+(from 0, which is uncompressed, to 9, maximally compressed). If \fB\-header\fR
+is given, \fIdict\fR is a dictionary containing values used for the gzip
+header. The following keys may be defined:
+.RS
+.IP \fBcomment\fR
+Add the given comment to the header of the gzip-format data.
+.IP \fBcrc\fR
+A boolean saying whether to compute a CRC of the header. Note that if the data
+is to be interchanged with the \fBgzip\fR program, a header CRC should
+\fInot\fR be computed.
+.IP \fBfilename\fR
+The name of the file that the data to be compressed came from.
+.IP \fBos\fR
+The operating system type code, which should be one of the values described in
+RFC 1952.
+.IP \fBtime\fR
+The time that the file named in the \fBfilename\fR key was last modified. This
+will be in the same as is returned by \fBclock seconds\fR or \fBfile mtime\fR.
+.IP \fBtype\fR
+The type of the data being compressed, being \fBbinary\fR or \fBtext\fR.
+.RE
+.\" METHOD: inflate
+.TP
+\fBzlib inflate\fI string\fR ?\fIbufferSize\fR?
+.
+Returns the uncompressed version of the raw compressed binary data in
+\fIstring\fR. If present, \fIbufferSize\fR is a hint as to what size of buffer
+is to be used to receive the data.
+.SS "CHANNEL SUBCOMMAND"
+.\" METHOD: push
+.TP
+\fBzlib push\fI mode channel\fR ?\fIoptions ...\fR?
+.
+Pushes a compressing or decompressing transformation onto the channel
+\fIchannel\fR.
+The transformation can be removed again with \fBchan pop\fR.
+The \fImode\fR argument determines what type of transformation
+is pushed; the following are supported:
+.RS
+.IP \fBcompress\fR
+The transformation will be a compressing transformation that produces
+zlib-format data on \fIchannel\fR, which must be writable.
+.IP \fBdecompress\fR
+The transformation will be a decompressing transformation that reads
+zlib-format data from \fIchannel\fR, which must be readable.
+.IP \fBdeflate\fR
+The transformation will be a compressing transformation that produces raw
+compressed data on \fIchannel\fR, which must be writable.
+.IP \fBgunzip\fR
+The transformation will be a decompressing transformation that reads
+gzip-format data from \fIchannel\fR, which must be readable.
+.IP \fBgzip\fR
+The transformation will be a compressing transformation that produces
+gzip-format data on \fIchannel\fR, which must be writable.
+.IP \fBinflate\fR
+The transformation will be a decompressing transformation that reads raw
+compressed data from \fIchannel\fR, which must be readable.
+.PP
+The following options may be set when creating a transformation via
+the
+.QW "\fIoptions ...\fR"
+to the \fBzlib push\fR command:
+.\" OPTION: -dictionary
+.TP
+\fB\-dictionary\fI binData\fR
+Sets the compression dictionary to use when working with compressing or
+decompressing the data to be \fIbinData\fR. Not valid for transformations that
+work with gzip-format data.  The dictionary should consist of strings (byte
+sequences) that are likely to be encountered later in the data to be compressed,
+with the most commonly used strings preferably put towards the end of the
+dictionary. Tcl provides no mechanism for choosing a good such dictionary for
+a particular data sequence.
+.\" OPTION: -header
+.TP
+\fB\-header\fI dictionary\fR
+.
+Passes a description of the gzip header to create, in the same format that
+\fBzlib gzip\fR understands.
+.\" OPTION: -level
+.TP
+\fB\-level\fI compressionLevel\fR
+.
+How hard to compress the data. Must be an integer from 0 (uncompressed) to 9
+(maximally compressed).
+.\" OPTION: -limit
+.TP
+\fB\-limit\fI readaheadLimit\fR
+.
+The maximum number of bytes ahead to read when decompressing.
+.RS
+.PP
+This option has become \fBirrelevant\fR. It was originally introduced
+to prevent Tcl from reading beyond the end of a compressed stream in
+multi-stream channels to ensure that the data after was left alone for
+further reading, at the cost of speed.
+.PP
+Tcl now automatically returns any bytes it has read beyond the end of
+a compressed stream back to the channel, making them appear as unread
+to further readers.
+.RE
+.PP
+Both compressing and decompressing channel transformations add extra
+configuration options that may be accessed through \fBchan configure\fR. The
+options are:
+.\" OPTION: -checksum
+.TP
+\fB\-checksum\fI checksum\fR
+.
+This read-only option gets the current checksum for the uncompressed data that
+the compression engine has seen so far. It is valid for both compressing and
+decompressing transforms, but not for the raw inflate and deflate formats. The
+compression algorithm depends on what format is being produced or consumed.
+.\" OPTION: -dictionary
+.TP
+\fB\-dictionary\fI binData\fR
+This read-write options gets or sets the initial compression dictionary to use
+when working with compressing or decompressing the data to be \fIbinData\fR.
+It is not valid for transformations that work with gzip-format data, and should
+not normally be set on compressing transformations other than at the point where
+the transformation is stacked. Note that this cannot be used to get the
+current active compression dictionary mid-stream, as that information is not
+exposed by the underlying library.
+.\" OPTION: -flush
+.TP
+\fB\-flush\fI type\fR
+.
+This write-only operation flushes the current state of the compressor to the
+underlying channel. It is only valid for compressing transformations. The
+\fItype\fR must be either \fBsync\fR or \fBfull\fR for a normal flush or an
+expensive flush respectively. Flushing degrades the compression ratio, but
+makes it easier for a decompressor to recover more of the file in the case of
+data corruption.
+.\" OPTION: -header
+.TP
+\fB\-header\fI dictionary\fR
+.
+This read-only option, only valid for decompressing transforms that are
+processing gzip-format data, returns the dictionary describing the header read
+off the data stream.
+.\" OPTION: -limit
+.TP
+\fB\-limit\fI readaheadLimit\fR
+.
+This read-write option is used by decompressing channels to control the
+maximum number of bytes ahead to read from the underlying data source. See
+above for more information.
+.RE
+.SS "STREAMING SUBCOMMAND"
+.\" METHOD: stream
+.TP
+\fBzlib stream\fI mode\fR ?\fIoptions\fR?
+.
+Creates a streaming compression or decompression command based on the
+\fImode\fR, and return the name of the command. For a description of how that
+command works, see \fBSTREAMING INSTANCE COMMAND\fR below. The following modes
+and \fIoptions\fR are supported:
+.RS
+.TP
+\fBzlib stream compress\fR ?\fB\-dictionary \fIbindata\fR? ?\fB\-level \fIlevel\fR?
+.
+The stream will be a compressing stream that produces zlib-format output,
+using compression level \fIlevel\fR (if specified) which will be an integer
+from 0 to 9,
+and the compression dictionary \fIbindata\fR (if specified).
+.VE
+.TP
+\fBzlib stream decompress\fR ?\fB\-dictionary \fIbindata\fR?
+.
+The stream will be a decompressing stream that takes zlib-format input and
+produces uncompressed output.
+If \fIbindata\fR is supplied, it is a compression dictionary to use if
+required.
+.VE
+.TP
+\fBzlib stream deflate\fR ?\fB\-dictionary \fIbindata\fR? ?\fB\-level \fIlevel\fR?
+.
+The stream will be a compressing stream that produces raw output, using
+compression level \fIlevel\fR (if specified) which will be an integer from 0
+to 9,
+and the compression dictionary \fIbindata\fR (if specified). Note that
+the raw compressed data includes no metadata about what compression
+dictionary was used, if any; that is a feature of the zlib-format data.
+.TP
+\fBzlib stream gunzip\fR
+.
+The stream will be a decompressing stream that takes gzip-format input and
+produces uncompressed output.
+.TP
+\fBzlib stream gzip\fR ?\fB\-header \fIheader\fR? ?\fB\-level \fIlevel\fR?
+.
+The stream will be a compressing stream that produces gzip-format output,
+using compression level \fIlevel\fR (if specified) which will be an integer
+from 0 to 9, and the header descriptor dictionary \fIheader\fR (if specified;
+for keys see \fBzlib gzip\fR).
+.TP
+\fBzlib stream inflate\fR ?\fB\-dictionary \fIbindata\fR?
+.
+The stream will be a decompressing stream that takes raw compressed input and
+produces uncompressed output.
+If \fIbindata\fR is supplied, it is a compression dictionary to use. Note that
+there are no checks in place to determine whether the compression dictionary
+is correct.
+.RE
+.SS "CHECKSUMMING SUBCOMMANDS"
+.\" METHOD: adler32
+.TP
+\fBzlib adler32\fI string\fR ?\fIinitValue\fR?
+.
+Compute a checksum of binary string \fIstring\fR using the Adler-32 algorithm.
+If given, \fIinitValue\fR is used to initialize the checksum engine.
+.\" METHOD: crc32
+.TP
+\fBzlib crc32\fI string\fR ?\fIinitValue\fR?
+.
+Compute a checksum of binary string \fIstring\fR using the CRC-32 algorithm.
+If given, \fIinitValue\fR is used to initialize the checksum engine.
+.SH "STREAMING INSTANCE COMMAND"
+.PP
+Streaming compression instance commands are produced by the \fBzlib stream\fR
+command. They are used by calling their \fBput\fR subcommand one or more times
+to load data in, and their \fBget\fR subcommand one or more times to extract
+the transformed data.
+.PP
+The full set of subcommands supported by a streaming instance command,
+\fIstream\fR, is as follows:
+.\" METHOD: add
+.TP
+\fIstream \fBadd\fR ?\fIoption...\fR? \fIdata\fR
+.
+A short-cut for
+.QW "\fIstream \fBput \fR?\fIoption...\fR? \fIdata\fR"
+followed by
+.QW "\fIstream \fBget\fR" .
+.\" METHOD: checksum
+.TP
+\fIstream \fBchecksum\fR
+.
+Returns the checksum of the uncompressed data seen so far by this stream.
+.\" METHOD: close
+.TP
+\fIstream \fBclose\fR
+.
+Deletes this stream and frees up all resources associated with it.
+.\" METHOD: eof
+.TP
+\fIstream \fBeof\fR
+.
+Returns a boolean indicating whether the end of the stream (as determined by
+the compressed data itself) has been reached. Not all formats support
+detection of the end of the stream.
+.\" METHOD: finalize
+.TP
+\fIstream \fBfinalize\fR
+.
+A short-cut for
+.QW "\fIstream \fBput \-finalize {}\fR" .
+.\" METHOD: flush
+.TP
+\fIstream \fBflush\fR
+.
+A short-cut for
+.QW "\fIstream \fBput \-flush {}\fR" .
+.\" METHOD: fullflush
+.TP
+\fIstream \fBfullflush\fR
+.
+A short-cut for
+.QW "\fIstream \fBput \-fullflush {}\fR" .
+.\" METHOD: get
+.TP
+\fIstream \fBget \fR?\fIcount\fR?
+.
+Return up to \fIcount\fR bytes from \fIstream\fR's internal buffers with the
+transformation applied. If \fIcount\fR is omitted, the entire contents of the
+buffers are returned.
+.\" METHOD: header
+.TP
+\fIstream \fBheader\fR
+.
+Return the gzip header description dictionary extracted from the stream. Only
+supported for streams created with their \fImode\fR parameter set to
+\fBgunzip\fR.
+.\" METHOD: put
+.TP
+\fIstream \fBput\fR ?\fIoption...\fR? \fIdata\fR
+.
+Append the contents of the binary string \fIdata\fR to \fIstream\fR's internal
+buffers while applying the transformation. The following \fIoption\fRs are
+supported (or an unambiguous prefix of them), which are used to modify the
+way in which the transformation is applied:
+.RS
+.\" OPTION: -dictionary
+.TP
+\fB\-dictionary\fI binData\fR
+Sets the compression dictionary to use when working with compressing or
+decompressing the data to be \fIbinData\fR.
+.\" OPTION: -finalize
+.TP
+\fB\-finalize\fR
+.
+Mark the stream as finished, ensuring that all bytes have been wholly
+compressed or decompressed. For gzip streams, this also ensures that the
+footer is written to the stream. The stream will need to be reset before
+having more data written to it after this, though data can still be read out
+of the stream with the \fBget\fR subcommand.
+.RS
+.PP
+This option is mutually exclusive with the \fB\-flush\fR and \fB\-fullflush\fR
+options.
+.RE
+.\" OPTION: -flush
+.TP
+\fB\-flush\fR
+.
+Ensure that a decompressor consuming the bytes that the current (compressing)
+stream is producing will be able to produce all the bytes that have been
+compressed so far, at some performance penalty.
+.RS
+.PP
+This option is mutually exclusive with the \fB\-finalize\fR and
+\fB\-fullflush\fR options.
+.RE
+.\" OPTION: -fullflush
+.TP
+\fB\-fullflush\fR
+.
+Ensure that not only can a decompressor handle all the bytes produced so far
+(as with \fB\-flush\fR above) but also that it can restart from this point if
+it detects that the stream is partially corrupt. This incurs a substantial
+performance penalty.
+.RS
+.PP
+This option is mutually exclusive with the \fB\-finalize\fR and \fB\-flush\fR
+options.
+.RE
+.RE
+.\" METHOD: reset
+.TP
+\fIstream \fBreset\fR
+.
+Puts any stream, including those that have been finalized or that have reached
+eof, back into a state where it can process more data. Throws away all
+internally buffered data.
+.SH EXAMPLES
+.PP
+To compress a Tcl string, it should be first converted to a particular charset
+encoding since the \fBzlib\fR command always operates on binary strings.
+.PP
+.CS
+set binData [encoding convertto utf-8 $string]
+set compData [\fBzlib compress\fR $binData]
+.CE
+.PP
+When converting back, it is also important to reverse the charset encoding:
+.PP
+.CS
+set binData [\fBzlib decompress\fR $compData]
+set string [encoding convertfrom utf-8 $binData]
+.CE
+.PP
+The compression operation from above can also be done with streams, which is
+especially helpful when you want to accumulate the data by stages:
+.PP
+.CS
+set strm [\fBzlib stream\fR compress]
+$\fIstrm \fBput\fR [encoding convertto utf-8 $string]
+# ...
+$\fIstrm \fBfinalize\fR
+set compData [$\fIstrm \fBget\fR]
+$\fIstrm \fBclose\fR
+.CE
+.SH "SEE ALSO"
+binary(n), chan(n), encoding(n), Tcl_ZlibDeflate(3), RFC1950 \- RFC1952
+.SH "KEYWORDS"
+compress, decompress, deflate, gzip, inflate, zlib
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
diff --git a/generic/regc_color.c b/generic/regc_color.c
index 35e7904..ccb1826 100644
--- a/generic/regc_color.c
+++ b/generic/regc_color.c
@@ -2,7 +2,7 @@
  * colorings of characters
  * This file is #included by regcomp.c.
  *
- * Copyright (c) 1998, 1999 Henry Spencer. All rights reserved.
+ * Copyright © 1998, 1999 Henry Spencer. All rights reserved.
  *
  * Development of this software was funded, in part, by Cray Research Inc.,
  * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
@@ -37,7 +37,7 @@
 
 /*
  - initcm - set up new colormap
- ^ static VOID initcm(struct vars *, struct colormap *);
+ ^ static void initcm(struct vars *, struct colormap *);
  */
 static void
 initcm(
@@ -88,7 +88,7 @@ initcm(
 
 /*
  - freecm - free dynamically-allocated things in a colormap
- ^ static VOID freecm(struct colormap *);
+ ^ static void freecm(struct colormap *);
  */
 static void
 freecm(
@@ -116,7 +116,7 @@ freecm(
 
 /*
  - cmtreefree - free a non-terminal part of a colormap tree
- ^ static VOID cmtreefree(struct colormap *, union tree *, int);
+ ^ static void cmtreefree(struct colormap *, union tree *, int);
  */
 static void
 cmtreefree(
@@ -294,7 +294,7 @@ newcolor(
 
 /*
  - freecolor - free a color (must have no arcs or subcolor)
- ^ static VOID freecolor(struct colormap *, pcolor);
+ ^ static void freecolor(struct colormap *, pcolor);
  */
 static void
 freecolor(
@@ -327,7 +327,7 @@ freecolor(
 	    cm->free = cm->cd[cm->free].sub;
 	}
 	if (cm->free > 0) {
-	    assert(cm->free < cm->max);
+	    assert((size_t)cm->free < cm->max);
 	    pco = cm->free;
 	    nco = cm->cd[pco].sub;
 	    while (nco > 0) {
@@ -339,7 +339,7 @@ freecolor(
 		    nco = cm->cd[nco].sub;
 		    cm->cd[pco].sub = nco;
 		} else {
-		    assert(nco < cm->max);
+		    assert((size_t)nco < cm->max);
 		    pco = nco;
 		    nco = cm->cd[pco].sub;
 		}
@@ -429,8 +429,8 @@ newsub(
 
 /*
  - subrange - allocate new subcolors to this range of chrs, fill in arcs
- ^ static VOID subrange(struct vars *, pchr, pchr, struct state *,
- ^ 	struct state *);
+ ^ static void subrange(struct vars *, pchr, pchr, struct state *,
+ ^	struct state *);
  */
 static void
 subrange(
@@ -477,7 +477,7 @@ subrange(
 
 /*
  - subblock - allocate new subcolors for one tree block of chrs, fill in arcs
- ^ static VOID subblock(struct vars *, pchr, struct state *, struct state *);
+ ^ static void subblock(struct vars *, pchr, struct state *, struct state *);
  */
 static void
 subblock(
@@ -582,7 +582,7 @@ subblock(
 
 /*
  - okcolors - promote subcolors to full colors
- ^ static VOID okcolors(struct nfa *, struct colormap *);
+ ^ static void okcolors(struct nfa *, struct colormap *);
  */
 static void
 okcolors(
@@ -643,7 +643,7 @@ okcolors(
 
 /*
  - colorchain - add this arc to the color chain of its color
- ^ static VOID colorchain(struct colormap *, struct arc *);
+ ^ static void colorchain(struct colormap *, struct arc *);
  */
 static void
 colorchain(
@@ -662,7 +662,7 @@ colorchain(
 
 /*
  - uncolorchain - delete this arc from the color chain of its color
- ^ static VOID uncolorchain(struct colormap *, struct arc *);
+ ^ static void uncolorchain(struct colormap *, struct arc *);
  */
 static void
 uncolorchain(
@@ -688,8 +688,8 @@ uncolorchain(
 
 /*
  - rainbow - add arcs of all full colors (but one) between specified states
- ^ static VOID rainbow(struct nfa *, struct colormap *, int, pcolor,
- ^ 	struct state *, struct state *);
+ ^ static void rainbow(struct nfa *, struct colormap *, int, pcolor,
+ ^	struct state *, struct state *);
  */
 static void
 rainbow(
@@ -715,8 +715,8 @@ rainbow(
 /*
  - colorcomplement - add arcs of complementary colors
  * The calling sequence ought to be reconciled with cloneouts().
- ^ static VOID colorcomplement(struct nfa *, struct colormap *, int,
- ^ 	struct state *, struct state *, struct state *);
+ ^ static void colorcomplement(struct nfa *, struct colormap *, int,
+ ^	struct state *, struct state *, struct state *);
  */
 static void
 colorcomplement(
@@ -748,7 +748,7 @@ colorcomplement(
 
 /*
  - dumpcolors - debugging output
- ^ static VOID dumpcolors(struct colormap *, FILE *);
+ ^ static void dumpcolors(struct colormap *, FILE *);
  */
 static void
 dumpcolors(
@@ -759,9 +759,9 @@ dumpcolors(
     struct colordesc *end;
     color co;
     chr c;
-    char *has;
+    const char *has;
 
-    fprintf(f, "max %ld\n", (long) cm->max);
+    fprintf(f, "max %" TCL_Z_MODIFIER "u\n", cm->max);
     if (NBYTS > 1) {
 	fillcheck(cm, cm->tree, 0, f);
     }
@@ -777,18 +777,19 @@ dumpcolors(
 	    }
 
 	    /*
-	     * It's hard to do this more efficiently.
+	     * Unfortunately, it's hard to do this next bit more efficiently.
+	     *
+	     * Spencer's original coding has the loop iterating from CHR_MIN
+	     * to CHR_MAX, but that's utterly unusable for 32-bit chr, or
+	     * even 16-bit.  For debugging purposes it seems fine to print
+	     * only chr codes up to 1000 or so.
 	     */
 
-	    for (c=CHR_MIN ; c<CHR_MAX ; c++) {
+	    for (c=CHR_MIN ; c<1000 ; c++) {
 		if (GETCOLOR(cm, c) == co) {
 		    dumpchr(c, f);
 		}
 	    }
-	    assert(c == CHR_MAX);
-	    if (GETCOLOR(cm, c) == co) {
-		dumpchr(c, f);
-	    }
 	    fprintf(f, "\n");
 	}
     }
@@ -796,7 +797,7 @@ dumpcolors(
 
 /*
  - fillcheck - check proper filling of a tree
- ^ static VOID fillcheck(struct colormap *, union tree *, int, FILE *);
+ ^ static void fillcheck(struct colormap *, union tree *, int, FILE *);
  */
 static void
 fillcheck(
@@ -825,7 +826,7 @@ fillcheck(
 /*
  - dumpchr - print a chr
  * Kind of char-centric but works well enough for debug use.
- ^ static VOID dumpchr(pchr, FILE *);
+ ^ static void dumpchr(pchr, FILE *);
  */
 static void
 dumpchr(
diff --git a/generic/regc_cvec.c b/generic/regc_cvec.c
index 64f34cd..dc699cf 100644
--- a/generic/regc_cvec.c
+++ b/generic/regc_cvec.c
@@ -2,7 +2,7 @@
  * Utility functions for handling cvecs
  * This file is #included by regcomp.c.
  *
- * Copyright (c) 1998, 1999 Henry Spencer.  All rights reserved.
+ * Copyright © 1998, 1999 Henry Spencer.  All rights reserved.
  *
  * Development of this software was funded, in part, by Cray Research Inc.,
  * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
@@ -36,14 +36,14 @@
 
 /*
  - newcvec - allocate a new cvec
- ^ static struct cvec *newcvec(int, int);
+ ^ static struct cvec *newcvec(size_t, size_t);
  */
 static struct cvec *
 newcvec(
-    int nchrs,			/* to hold this many chrs... */
-    int nranges)		/* ... and this many ranges... */
+    size_t nchrs,		/* to hold this many chrs... */
+    size_t nranges)		/* ... and this many ranges... */
 {
-    size_t nc = (size_t)nchrs + (size_t)nranges*2;
+    size_t nc = nchrs + nranges*2;
     size_t n = sizeof(struct cvec) + nc*sizeof(chr);
     struct cvec *cv = (struct cvec *) MALLOC(n);
 
@@ -74,19 +74,20 @@ clearcvec(
 
 /*
  - addchr - add a chr to a cvec
- ^ static VOID addchr(struct cvec *, pchr);
+ ^ static void addchr(struct cvec *, pchr);
  */
 static void
 addchr(
     struct cvec *cv,		/* character vector */
     pchr c)			/* character to add */
 {
+    assert(cv->nchrs < cv->chrspace);
     cv->chrs[cv->nchrs++] = (chr)c;
 }
 
 /*
  - addrange - add a range to a cvec
- ^ static VOID addrange(struct cvec *, pchr, pchr);
+ ^ static void addrange(struct cvec *, pchr, pchr);
  */
 static void
 addrange(
@@ -107,8 +108,8 @@ addrange(
 static struct cvec *
 getcvec(
     struct vars *v,		/* context */
-    int nchrs,			/* to hold this many chrs... */
-    int nranges)		/* ... and this many ranges... */
+    size_t nchrs,		/* to hold this many chrs... */
+    size_t nranges)		/* ... and this many ranges... */
 {
     if ((v->cv != NULL) && (nchrs <= v->cv->chrspace) &&
 	    (nranges <= v->cv->rangespace)) {
@@ -128,7 +129,7 @@ getcvec(
 
 /*
  - freecvec - free a cvec
- ^ static VOID freecvec(struct cvec *);
+ ^ static void freecvec(struct cvec *);
  */
 static void
 freecvec(
diff --git a/generic/regc_lex.c b/generic/regc_lex.c
index 992f5fd..bf936ca 100644
--- a/generic/regc_lex.c
+++ b/generic/regc_lex.c
@@ -2,7 +2,7 @@
  * lexical analyzer
  * This file is #included by regcomp.c.
  *
- * Copyright (c) 1998, 1999 Henry Spencer.  All rights reserved.
+ * Copyright © 1998, 1999 Henry Spencer.  All rights reserved.
  *
  * Development of this software was funded, in part, by Cray Research Inc.,
  * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
@@ -457,7 +457,7 @@ next(
 	    if (ATEOS()) {
 		FAILW(REG_EESCAPE);
 	    }
-	    (DISCARD)lexescape(v);
+	    (void)lexescape(v);
 	    switch (v->nexttype) {	/* not all escapes okay here */
 	    case PLAIN:
 		return 1;
@@ -716,7 +716,7 @@ next(
 	}
 	RETV(PLAIN, *v->now++);
     }
-    (DISCARD)lexescape(v);
+    (void)lexescape(v);
     if (ISERR()) {
 	FAILW(REG_EESCAPE);
     }
@@ -775,7 +775,7 @@ lexescape(
     NOTE(REG_UNONPOSIX);
     switch (c) {
     case CHR('a'):
-	RETV(PLAIN, chrnamed(v, alert, ENDOF(alert), CHR('\007')));
+	RETV(PLAIN, chrnamed(v, alert, ENDOF(alert), CHR('\x07')));
 	break;
     case CHR('A'):
 	RETV(SBEGIN, 0);
@@ -803,7 +803,7 @@ lexescape(
 	break;
     case CHR('e'):
 	NOTE(REG_UUNPORT);
-	RETV(PLAIN, chrnamed(v, esc, ENDOF(esc), CHR('\033')));
+	RETV(PLAIN, chrnamed(v, esc, ENDOF(esc), CHR('\x1B')));
 	break;
     case CHR('f'):
 	RETV(PLAIN, CHR('\f'));
@@ -832,27 +832,18 @@ lexescape(
 	RETV(PLAIN, CHR('\t'));
 	break;
     case CHR('u'):
-	c = (uchr) lexdigits(v, 16, 4, 4);
+	c = (uchr) lexdigits(v, 16, 1, 4);
 	if (ISERR()) {
 	    FAILW(REG_EESCAPE);
 	}
 	RETV(PLAIN, c);
 	break;
     case CHR('U'):
-	i = lexdigits(v, 16, 8, 8);
+	i = lexdigits(v, 16, 1, 8);
 	if (ISERR()) {
 	    FAILW(REG_EESCAPE);
 	}
-#if CHRBITS > 16
-	if ((unsigned)i > 0x10FFFF) {
-	    i = 0xFFFD;
-	}
-#else
-	if ((unsigned)i & ~0xFFFF) {
-	    i = 0xFFFD;
-	}
-#endif
-	RETV(PLAIN, (uchr)i);
+	RETV(PLAIN, (uchr) i);
 	break;
     case CHR('v'):
 	RETV(PLAIN, CHR('\v'));
@@ -867,7 +858,7 @@ lexescape(
 	break;
     case CHR('x'):
 	NOTE(REG_UUNPORT);
-	c = lexdigits(v, 16, 1, 255);	/* REs >255 long outside spec */
+	c = (uchr) lexdigits(v, 16, 1, 2);
 	if (ISERR()) {
 	    FAILW(REG_EESCAPE);
 	}
@@ -889,7 +880,7 @@ lexescape(
     case CHR('9'):
 	save = v->now;
 	v->now--;		/* put first digit back */
-	c = lexdigits(v, 10, 1, 255);	/* REs >255 long outside spec */
+	c = (uchr) lexdigits(v, 10, 1, 255);	/* REs >255 long outside spec */
 	if (ISERR()) {
 	    FAILW(REG_EESCAPE);
 	}
@@ -898,7 +889,7 @@ lexescape(
 	 * Ugly heuristic (first test is "exactly 1 digit?")
 	 */
 
-	if (v->now - save == 0 || ((int) c > 0 && (int)c <= v->nsubexp)) {
+	if (v->now - save == 0 || ((int) c > 0 && (size_t)c <= v->nsubexp)) {
 	    NOTE(REG_UBACKREF);
 	    RETV(BACKREF, (chr)c);
 	}
@@ -914,10 +905,15 @@ lexescape(
     case CHR('0'):
 	NOTE(REG_UUNPORT);
 	v->now--;		/* put first digit back */
-	c = lexdigits(v, 8, 1, 3);
+	c = (uchr) lexdigits(v, 8, 1, 3);
 	if (ISERR()) {
 	    FAILW(REG_EESCAPE);
 	}
+	if (c > 0xFF) {
+	    /* out of range, so we handled one digit too much */
+	    v->now--;
+	    c >>= 3;
+	}
 	RETV(PLAIN, c);
 	break;
     default:
@@ -930,23 +926,27 @@ lexescape(
 
 /*
  - lexdigits - slurp up digits and return chr value
- ^ static chr lexdigits(struct vars *, int, int, int);
+ ^ static int lexdigits(struct vars *, int, int, int);
  */
-static chr			/* chr value; errors signalled via ERR */
+static int			/* chr value; errors signalled via ERR */
 lexdigits(
     struct vars *v,
     int base,
     int minlen,
     int maxlen)
 {
-    uchr n;			/* unsigned to avoid overflow misbehavior */
+    int n;
     int len;
     chr c;
     int d;
-    CONST uchr ub = (uchr) base;
+    const uchr ub = (uchr) base;
 
     n = 0;
     for (len = 0; len < maxlen && !ATEOS(); len++) {
+	if (n > 0x10FFF) {
+	    /* Stop when continuing would otherwise overflow */
+	    break;
+	}
 	c = *v->now++;
 	switch (c) {
 	case CHR('0'): case CHR('1'): case CHR('2'): case CHR('3'):
@@ -979,7 +979,7 @@ lexdigits(
 	ERR(REG_EESCAPE);
     }
 
-    return (chr)n;
+    return n;
 }
 
 /*
@@ -1101,7 +1101,7 @@ brenext(
 
 /*
  - skip - skip white space and comments in expanded form
- ^ static VOID skip(struct vars *);
+ ^ static void skip(struct vars *);
  */
 static void
 skip(
@@ -1136,7 +1136,7 @@ skip(
 /*
  - newline - return the chr for a newline
  * This helps confine use of CHR to this source file.
- ^ static chr newline(NOPARMS);
+ ^ static chr newline(void);
  */
 static chr
 newline(void)
@@ -1145,24 +1145,6 @@ newline(void)
 }
 
 /*
- - ch - return the chr sequence for regc_locale.c's fake collating element ch
- * This helps confine use of CHR to this source file.  Beware that the caller
- * knows how long the sequence is.
- ^ #ifdef REG_DEBUG
- ^ static const chr *ch(NOPARMS);
- ^ #endif
- */
-#ifdef REG_DEBUG
-static const chr *
-ch(void)
-{
-    static const chr chstr[] = { CHR('c'), CHR('h'), CHR('\0') };
-
-    return chstr;
-}
-#endif
-
-/*
  - chrnamed - return the chr known by a given (chr string) name
  * The code is a bit clumsy, but this routine gets only such specialized
  * use that it hardly matters.
diff --git a/generic/regc_locale.c b/generic/regc_locale.c
index c8019e1..9dfea3f 100644
--- a/generic/regc_locale.c
+++ b/generic/regc_locale.c
@@ -4,7 +4,7 @@
  *	This file contains the Unicode locale specific regexp routines.
  *	This file is #included by regcomp.c.
  *
- * Copyright (c) 1998 by Scriptics Corporation.
+ * Copyright © 1998 Scriptics Corporation.
  *
  * See the file "license.terms" for information on usage and redistribution of
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
@@ -16,49 +16,49 @@ static const struct cname {
     const char *name;
     const char code;
 } cnames[] = {
-    {"NUL",		'\0'},
-    {"SOH",		'\001'},
-    {"STX",		'\002'},
-    {"ETX",		'\003'},
-    {"EOT",		'\004'},
-    {"ENQ",		'\005'},
-    {"ACK",		'\006'},
-    {"BEL",		'\007'},
-    {"alert",		'\007'},
-    {"BS",		'\010'},
-    {"backspace",	'\b'},
-    {"HT",		'\011'},
-    {"tab",		'\t'},
-    {"LF",		'\012'},
-    {"newline",		'\n'},
-    {"VT",		'\013'},
-    {"vertical-tab",	'\v'},
-    {"FF",		'\014'},
-    {"form-feed",	'\f'},
-    {"CR",		'\015'},
-    {"carriage-return",	'\r'},
-    {"SO",		'\016'},
-    {"SI",		'\017'},
-    {"DLE",		'\020'},
-    {"DC1",		'\021'},
-    {"DC2",		'\022'},
-    {"DC3",		'\023'},
-    {"DC4",		'\024'},
-    {"NAK",		'\025'},
-    {"SYN",		'\026'},
-    {"ETB",		'\027'},
-    {"CAN",		'\030'},
-    {"EM",		'\031'},
-    {"SUB",		'\032'},
-    {"ESC",		'\033'},
-    {"IS4",		'\034'},
-    {"FS",		'\034'},
-    {"IS3",		'\035'},
-    {"GS",		'\035'},
-    {"IS2",		'\036'},
-    {"RS",		'\036'},
-    {"IS1",		'\037'},
-    {"US",		'\037'},
+    {"NUL",		'\x00'},
+    {"SOH",		'\x01'},
+    {"STX",		'\x02'},
+    {"ETX",		'\x03'},
+    {"EOT",		'\x04'},
+    {"ENQ",		'\x05'},
+    {"ACK",		'\x06'},
+    {"BEL",		'\x07'},
+    {"alert",		'\x07'},
+    {"BS",		'\x08'},
+    {"backspace",	'\x08'},
+    {"HT",		'\x09'},
+    {"tab",		'\x09'},
+    {"LF",		'\x0A'},
+    {"newline",		'\x0A'},
+    {"VT",		'\x0B'},
+    {"vertical-tab",	'\x0B'},
+    {"FF",		'\x0C'},
+    {"form-feed",	'\x0C'},
+    {"CR",		'\x0D'},
+    {"carriage-return",	'\x0D'},
+    {"SO",		'\x0E'},
+    {"SI",		'\x0F'},
+    {"DLE",		'\x10'},
+    {"DC1",		'\x11'},
+    {"DC2",		'\x12'},
+    {"DC3",		'\x13'},
+    {"DC4",		'\x14'},
+    {"NAK",		'\x15'},
+    {"SYN",		'\x16'},
+    {"ETB",		'\x17'},
+    {"CAN",		'\x18'},
+    {"EM",		'\x19'},
+    {"SUB",		'\x1A'},
+    {"ESC",		'\x1B'},
+    {"IS4",		'\x1C'},
+    {"FS",		'\x1C'},
+    {"IS3",		'\x1D'},
+    {"GS",		'\x1D'},
+    {"IS2",		'\x1E'},
+    {"RS",		'\x1E'},
+    {"IS1",		'\x1F'},
+    {"US",		'\x1F'},
     {"space",		' '},
     {"exclamation-mark",'!'},
     {"quotation-mark",	'"'},
@@ -110,7 +110,7 @@ static const struct cname {
     {"right-brace",	'}'},
     {"right-curly-bracket", '}'},
     {"tilde",		'~'},
-    {"DEL",		'\177'},
+    {"DEL",		'\x7F'},
     {NULL,		0}
 };
 
@@ -169,7 +169,7 @@ static const crange alphaRangeTable[] = {
     {0x1950, 0x196D}, {0x1970, 0x1974}, {0x1980, 0x19AB}, {0x19B0, 0x19C9},
     {0x1A00, 0x1A16}, {0x1A20, 0x1A54}, {0x1B05, 0x1B33}, {0x1B45, 0x1B4C},
     {0x1B83, 0x1BA0}, {0x1BBA, 0x1BE5}, {0x1C00, 0x1C23}, {0x1C4D, 0x1C4F},
-    {0x1C5A, 0x1C7D}, {0x1C80, 0x1C88}, {0x1C90, 0x1CBA}, {0x1CBD, 0x1CBF},
+    {0x1C5A, 0x1C7D}, {0x1C80, 0x1C8A}, {0x1C90, 0x1CBA}, {0x1CBD, 0x1CBF},
     {0x1CE9, 0x1CEC}, {0x1CEE, 0x1CF3}, {0x1D00, 0x1DBF}, {0x1E00, 0x1F15},
     {0x1F18, 0x1F1D}, {0x1F20, 0x1F45}, {0x1F48, 0x1F4D}, {0x1F50, 0x1F57},
     {0x1F5F, 0x1F7D}, {0x1F80, 0x1FB4}, {0x1FB6, 0x1FBC}, {0x1FC2, 0x1FC4},
@@ -184,7 +184,7 @@ static const crange alphaRangeTable[] = {
     {0x3131, 0x318E}, {0x31A0, 0x31BF}, {0x31F0, 0x31FF}, {0x3400, 0x4DBF},
     {0x4E00, 0xA48C}, {0xA4D0, 0xA4FD}, {0xA500, 0xA60C}, {0xA610, 0xA61F},
     {0xA640, 0xA66E}, {0xA67F, 0xA69D}, {0xA6A0, 0xA6E5}, {0xA717, 0xA71F},
-    {0xA722, 0xA788}, {0xA78B, 0xA7CA}, {0xA7D5, 0xA7D9}, {0xA7F2, 0xA801},
+    {0xA722, 0xA788}, {0xA78B, 0xA7CD}, {0xA7D5, 0xA7DC}, {0xA7F2, 0xA801},
     {0xA803, 0xA805}, {0xA807, 0xA80A}, {0xA80C, 0xA822}, {0xA840, 0xA873},
     {0xA882, 0xA8B3}, {0xA8F2, 0xA8F7}, {0xA90A, 0xA925}, {0xA930, 0xA946},
     {0xA960, 0xA97C}, {0xA984, 0xA9B2}, {0xA9E0, 0xA9E4}, {0xA9E6, 0xA9EF},
@@ -206,55 +206,58 @@ static const crange alphaRangeTable[] = {
     {0x10380, 0x1039D}, {0x103A0, 0x103C3}, {0x103C8, 0x103CF}, {0x10400, 0x1049D},
     {0x104B0, 0x104D3}, {0x104D8, 0x104FB}, {0x10500, 0x10527}, {0x10530, 0x10563},
     {0x10570, 0x1057A}, {0x1057C, 0x1058A}, {0x1058C, 0x10592}, {0x10597, 0x105A1},
-    {0x105A3, 0x105B1}, {0x105B3, 0x105B9}, {0x10600, 0x10736}, {0x10740, 0x10755},
-    {0x10760, 0x10767}, {0x10780, 0x10785}, {0x10787, 0x107B0}, {0x107B2, 0x107BA},
-    {0x10800, 0x10805}, {0x1080A, 0x10835}, {0x1083F, 0x10855}, {0x10860, 0x10876},
-    {0x10880, 0x1089E}, {0x108E0, 0x108F2}, {0x10900, 0x10915}, {0x10920, 0x10939},
-    {0x10980, 0x109B7}, {0x10A10, 0x10A13}, {0x10A15, 0x10A17}, {0x10A19, 0x10A35},
-    {0x10A60, 0x10A7C}, {0x10A80, 0x10A9C}, {0x10AC0, 0x10AC7}, {0x10AC9, 0x10AE4},
-    {0x10B00, 0x10B35}, {0x10B40, 0x10B55}, {0x10B60, 0x10B72}, {0x10B80, 0x10B91},
-    {0x10C00, 0x10C48}, {0x10C80, 0x10CB2}, {0x10CC0, 0x10CF2}, {0x10D00, 0x10D23},
-    {0x10E80, 0x10EA9}, {0x10F00, 0x10F1C}, {0x10F30, 0x10F45}, {0x10F70, 0x10F81},
+    {0x105A3, 0x105B1}, {0x105B3, 0x105B9}, {0x105C0, 0x105F3}, {0x10600, 0x10736},
+    {0x10740, 0x10755}, {0x10760, 0x10767}, {0x10780, 0x10785}, {0x10787, 0x107B0},
+    {0x107B2, 0x107BA}, {0x10800, 0x10805}, {0x1080A, 0x10835}, {0x1083F, 0x10855},
+    {0x10860, 0x10876}, {0x10880, 0x1089E}, {0x108E0, 0x108F2}, {0x10900, 0x10915},
+    {0x10920, 0x10939}, {0x10980, 0x109B7}, {0x10A10, 0x10A13}, {0x10A15, 0x10A17},
+    {0x10A19, 0x10A35}, {0x10A60, 0x10A7C}, {0x10A80, 0x10A9C}, {0x10AC0, 0x10AC7},
+    {0x10AC9, 0x10AE4}, {0x10B00, 0x10B35}, {0x10B40, 0x10B55}, {0x10B60, 0x10B72},
+    {0x10B80, 0x10B91}, {0x10C00, 0x10C48}, {0x10C80, 0x10CB2}, {0x10CC0, 0x10CF2},
+    {0x10D00, 0x10D23}, {0x10D4A, 0x10D65}, {0x10D6F, 0x10D85}, {0x10E80, 0x10EA9},
+    {0x10EC2, 0x10EC4}, {0x10F00, 0x10F1C}, {0x10F30, 0x10F45}, {0x10F70, 0x10F81},
     {0x10FB0, 0x10FC4}, {0x10FE0, 0x10FF6}, {0x11003, 0x11037}, {0x11083, 0x110AF},
     {0x110D0, 0x110E8}, {0x11103, 0x11126}, {0x11150, 0x11172}, {0x11183, 0x111B2},
     {0x111C1, 0x111C4}, {0x11200, 0x11211}, {0x11213, 0x1122B}, {0x11280, 0x11286},
     {0x1128A, 0x1128D}, {0x1128F, 0x1129D}, {0x1129F, 0x112A8}, {0x112B0, 0x112DE},
     {0x11305, 0x1130C}, {0x11313, 0x11328}, {0x1132A, 0x11330}, {0x11335, 0x11339},
-    {0x1135D, 0x11361}, {0x11400, 0x11434}, {0x11447, 0x1144A}, {0x1145F, 0x11461},
-    {0x11480, 0x114AF}, {0x11580, 0x115AE}, {0x115D8, 0x115DB}, {0x11600, 0x1162F},
-    {0x11680, 0x116AA}, {0x11700, 0x1171A}, {0x11740, 0x11746}, {0x11800, 0x1182B},
-    {0x118A0, 0x118DF}, {0x118FF, 0x11906}, {0x1190C, 0x11913}, {0x11918, 0x1192F},
-    {0x119A0, 0x119A7}, {0x119AA, 0x119D0}, {0x11A0B, 0x11A32}, {0x11A5C, 0x11A89},
-    {0x11AB0, 0x11AF8}, {0x11C00, 0x11C08}, {0x11C0A, 0x11C2E}, {0x11C72, 0x11C8F},
-    {0x11D00, 0x11D06}, {0x11D0B, 0x11D30}, {0x11D60, 0x11D65}, {0x11D6A, 0x11D89},
-    {0x11EE0, 0x11EF2}, {0x11F04, 0x11F10}, {0x11F12, 0x11F33}, {0x12000, 0x12399},
-    {0x12480, 0x12543}, {0x12F90, 0x12FF0}, {0x13000, 0x1342F}, {0x13441, 0x13446},
-    {0x14400, 0x14646}, {0x16800, 0x16A38}, {0x16A40, 0x16A5E}, {0x16A70, 0x16ABE},
-    {0x16AD0, 0x16AED}, {0x16B00, 0x16B2F}, {0x16B40, 0x16B43}, {0x16B63, 0x16B77},
-    {0x16B7D, 0x16B8F}, {0x16E40, 0x16E7F}, {0x16F00, 0x16F4A}, {0x16F93, 0x16F9F},
-    {0x17000, 0x187F7}, {0x18800, 0x18CD5}, {0x18D00, 0x18D08}, {0x1AFF0, 0x1AFF3},
-    {0x1AFF5, 0x1AFFB}, {0x1B000, 0x1B122}, {0x1B150, 0x1B152}, {0x1B164, 0x1B167},
-    {0x1B170, 0x1B2FB}, {0x1BC00, 0x1BC6A}, {0x1BC70, 0x1BC7C}, {0x1BC80, 0x1BC88},
-    {0x1BC90, 0x1BC99}, {0x1D400, 0x1D454}, {0x1D456, 0x1D49C}, {0x1D4A9, 0x1D4AC},
-    {0x1D4AE, 0x1D4B9}, {0x1D4BD, 0x1D4C3}, {0x1D4C5, 0x1D505}, {0x1D507, 0x1D50A},
-    {0x1D50D, 0x1D514}, {0x1D516, 0x1D51C}, {0x1D51E, 0x1D539}, {0x1D53B, 0x1D53E},
-    {0x1D540, 0x1D544}, {0x1D54A, 0x1D550}, {0x1D552, 0x1D6A5}, {0x1D6A8, 0x1D6C0},
-    {0x1D6C2, 0x1D6DA}, {0x1D6DC, 0x1D6FA}, {0x1D6FC, 0x1D714}, {0x1D716, 0x1D734},
-    {0x1D736, 0x1D74E}, {0x1D750, 0x1D76E}, {0x1D770, 0x1D788}, {0x1D78A, 0x1D7A8},
-    {0x1D7AA, 0x1D7C2}, {0x1D7C4, 0x1D7CB}, {0x1DF00, 0x1DF1E}, {0x1DF25, 0x1DF2A},
-    {0x1E030, 0x1E06D}, {0x1E100, 0x1E12C}, {0x1E137, 0x1E13D}, {0x1E290, 0x1E2AD},
-    {0x1E2C0, 0x1E2EB}, {0x1E4D0, 0x1E4EB}, {0x1E7E0, 0x1E7E6}, {0x1E7E8, 0x1E7EB},
-    {0x1E7F0, 0x1E7FE}, {0x1E800, 0x1E8C4}, {0x1E900, 0x1E943}, {0x1EE00, 0x1EE03},
-    {0x1EE05, 0x1EE1F}, {0x1EE29, 0x1EE32}, {0x1EE34, 0x1EE37}, {0x1EE4D, 0x1EE4F},
-    {0x1EE67, 0x1EE6A}, {0x1EE6C, 0x1EE72}, {0x1EE74, 0x1EE77}, {0x1EE79, 0x1EE7C},
-    {0x1EE80, 0x1EE89}, {0x1EE8B, 0x1EE9B}, {0x1EEA1, 0x1EEA3}, {0x1EEA5, 0x1EEA9},
-    {0x1EEAB, 0x1EEBB}, {0x20000, 0x2A6DF}, {0x2A700, 0x2B739}, {0x2B740, 0x2B81D},
-    {0x2B820, 0x2CEA1}, {0x2CEB0, 0x2EBE0}, {0x2F800, 0x2FA1D}, {0x30000, 0x3134A},
+    {0x1135D, 0x11361}, {0x11380, 0x11389}, {0x11390, 0x113B5}, {0x11400, 0x11434},
+    {0x11447, 0x1144A}, {0x1145F, 0x11461}, {0x11480, 0x114AF}, {0x11580, 0x115AE},
+    {0x115D8, 0x115DB}, {0x11600, 0x1162F}, {0x11680, 0x116AA}, {0x11700, 0x1171A},
+    {0x11740, 0x11746}, {0x11800, 0x1182B}, {0x118A0, 0x118DF}, {0x118FF, 0x11906},
+    {0x1190C, 0x11913}, {0x11918, 0x1192F}, {0x119A0, 0x119A7}, {0x119AA, 0x119D0},
+    {0x11A0B, 0x11A32}, {0x11A5C, 0x11A89}, {0x11AB0, 0x11AF8}, {0x11BC0, 0x11BE0},
+    {0x11C00, 0x11C08}, {0x11C0A, 0x11C2E}, {0x11C72, 0x11C8F}, {0x11D00, 0x11D06},
+    {0x11D0B, 0x11D30}, {0x11D60, 0x11D65}, {0x11D6A, 0x11D89}, {0x11EE0, 0x11EF2},
+    {0x11F04, 0x11F10}, {0x11F12, 0x11F33}, {0x12000, 0x12399}, {0x12480, 0x12543},
+    {0x12F90, 0x12FF0}, {0x13000, 0x1342F}, {0x13441, 0x13446}, {0x13460, 0x143FA},
+    {0x14400, 0x14646}, {0x16100, 0x1611D}, {0x16800, 0x16A38}, {0x16A40, 0x16A5E},
+    {0x16A70, 0x16ABE}, {0x16AD0, 0x16AED}, {0x16B00, 0x16B2F}, {0x16B40, 0x16B43},
+    {0x16B63, 0x16B77}, {0x16B7D, 0x16B8F}, {0x16D40, 0x16D6C}, {0x16E40, 0x16E7F},
+    {0x16F00, 0x16F4A}, {0x16F93, 0x16F9F}, {0x17000, 0x187F7}, {0x18800, 0x18CD5},
+    {0x18CFF, 0x18D08}, {0x1AFF0, 0x1AFF3}, {0x1AFF5, 0x1AFFB}, {0x1B000, 0x1B122},
+    {0x1B150, 0x1B152}, {0x1B164, 0x1B167}, {0x1B170, 0x1B2FB}, {0x1BC00, 0x1BC6A},
+    {0x1BC70, 0x1BC7C}, {0x1BC80, 0x1BC88}, {0x1BC90, 0x1BC99}, {0x1D400, 0x1D454},
+    {0x1D456, 0x1D49C}, {0x1D4A9, 0x1D4AC}, {0x1D4AE, 0x1D4B9}, {0x1D4BD, 0x1D4C3},
+    {0x1D4C5, 0x1D505}, {0x1D507, 0x1D50A}, {0x1D50D, 0x1D514}, {0x1D516, 0x1D51C},
+    {0x1D51E, 0x1D539}, {0x1D53B, 0x1D53E}, {0x1D540, 0x1D544}, {0x1D54A, 0x1D550},
+    {0x1D552, 0x1D6A5}, {0x1D6A8, 0x1D6C0}, {0x1D6C2, 0x1D6DA}, {0x1D6DC, 0x1D6FA},
+    {0x1D6FC, 0x1D714}, {0x1D716, 0x1D734}, {0x1D736, 0x1D74E}, {0x1D750, 0x1D76E},
+    {0x1D770, 0x1D788}, {0x1D78A, 0x1D7A8}, {0x1D7AA, 0x1D7C2}, {0x1D7C4, 0x1D7CB},
+    {0x1DF00, 0x1DF1E}, {0x1DF25, 0x1DF2A}, {0x1E030, 0x1E06D}, {0x1E100, 0x1E12C},
+    {0x1E137, 0x1E13D}, {0x1E290, 0x1E2AD}, {0x1E2C0, 0x1E2EB}, {0x1E4D0, 0x1E4EB},
+    {0x1E5D0, 0x1E5ED}, {0x1E7E0, 0x1E7E6}, {0x1E7E8, 0x1E7EB}, {0x1E7F0, 0x1E7FE},
+    {0x1E800, 0x1E8C4}, {0x1E900, 0x1E943}, {0x1EE00, 0x1EE03}, {0x1EE05, 0x1EE1F},
+    {0x1EE29, 0x1EE32}, {0x1EE34, 0x1EE37}, {0x1EE4D, 0x1EE4F}, {0x1EE67, 0x1EE6A},
+    {0x1EE6C, 0x1EE72}, {0x1EE74, 0x1EE77}, {0x1EE79, 0x1EE7C}, {0x1EE80, 0x1EE89},
+    {0x1EE8B, 0x1EE9B}, {0x1EEA1, 0x1EEA3}, {0x1EEA5, 0x1EEA9}, {0x1EEAB, 0x1EEBB},
+    {0x20000, 0x2A6DF}, {0x2A700, 0x2B739}, {0x2B740, 0x2B81D}, {0x2B820, 0x2CEA1},
+    {0x2CEB0, 0x2EBE0}, {0x2EBF0, 0x2EE5D}, {0x2F800, 0x2FA1D}, {0x30000, 0x3134A},
     {0x31350, 0x323AF}
 #endif
 };
 
-#define NUM_ALPHA_RANGE (sizeof(alphaRangeTable)/sizeof(crange))
+#define NUM_ALPHA_RANGE ((int)(sizeof(alphaRangeTable)/sizeof(crange)))
 
 static const chr alphaCharTable[] = {
     0xAA, 0xB5, 0xBA, 0x2EC, 0x2EE, 0x376, 0x377, 0x37F, 0x386,
@@ -279,19 +282,19 @@ static const chr alphaCharTable[] = {
     ,0x1003C, 0x1003D, 0x10594, 0x10595, 0x105BB, 0x105BC, 0x10808, 0x10837, 0x10838,
     0x1083C, 0x108F4, 0x108F5, 0x109BE, 0x109BF, 0x10A00, 0x10EB0, 0x10EB1, 0x10F27,
     0x11071, 0x11072, 0x11075, 0x11144, 0x11147, 0x11176, 0x111DA, 0x111DC, 0x1123F,
-    0x11240, 0x11288, 0x1130F, 0x11310, 0x11332, 0x11333, 0x1133D, 0x11350, 0x114C4,
-    0x114C5, 0x114C7, 0x11644, 0x116B8, 0x11909, 0x11915, 0x11916, 0x1193F, 0x11941,
-    0x119E1, 0x119E3, 0x11A00, 0x11A3A, 0x11A50, 0x11A9D, 0x11C40, 0x11D08, 0x11D09,
-    0x11D46, 0x11D67, 0x11D68, 0x11D98, 0x11F02, 0x11FB0, 0x16F50, 0x16FE0, 0x16FE1,
-    0x16FE3, 0x1AFFD, 0x1AFFE, 0x1B132, 0x1B155, 0x1D49E, 0x1D49F, 0x1D4A2, 0x1D4A5,
-    0x1D4A6, 0x1D4BB, 0x1D546, 0x1E14E, 0x1E7ED, 0x1E7EE, 0x1E94B, 0x1EE21, 0x1EE22,
-    0x1EE24, 0x1EE27, 0x1EE39, 0x1EE3B, 0x1EE42, 0x1EE47, 0x1EE49, 0x1EE4B, 0x1EE51,
-    0x1EE52, 0x1EE54, 0x1EE57, 0x1EE59, 0x1EE5B, 0x1EE5D, 0x1EE5F, 0x1EE61, 0x1EE62,
-    0x1EE64, 0x1EE7E
+    0x11240, 0x11288, 0x1130F, 0x11310, 0x11332, 0x11333, 0x1133D, 0x11350, 0x1138B,
+    0x1138E, 0x113B7, 0x113D1, 0x113D3, 0x114C4, 0x114C5, 0x114C7, 0x11644, 0x116B8,
+    0x11909, 0x11915, 0x11916, 0x1193F, 0x11941, 0x119E1, 0x119E3, 0x11A00, 0x11A3A,
+    0x11A50, 0x11A9D, 0x11C40, 0x11D08, 0x11D09, 0x11D46, 0x11D67, 0x11D68, 0x11D98,
+    0x11F02, 0x11FB0, 0x16F50, 0x16FE0, 0x16FE1, 0x16FE3, 0x1AFFD, 0x1AFFE, 0x1B132,
+    0x1B155, 0x1D49E, 0x1D49F, 0x1D4A2, 0x1D4A5, 0x1D4A6, 0x1D4BB, 0x1D546, 0x1E14E,
+    0x1E5F0, 0x1E7ED, 0x1E7EE, 0x1E94B, 0x1EE21, 0x1EE22, 0x1EE24, 0x1EE27, 0x1EE39,
+    0x1EE3B, 0x1EE42, 0x1EE47, 0x1EE49, 0x1EE4B, 0x1EE51, 0x1EE52, 0x1EE54, 0x1EE57,
+    0x1EE59, 0x1EE5B, 0x1EE5D, 0x1EE5F, 0x1EE61, 0x1EE62, 0x1EE64, 0x1EE7E
 #endif
 };
 
-#define NUM_ALPHA_CHAR (sizeof(alphaCharTable)/sizeof(chr))
+#define NUM_ALPHA_CHAR ((int)(sizeof(alphaCharTable)/sizeof(chr)))
 
 /*
  * Unicode: control characters.
@@ -299,15 +302,13 @@ static const chr alphaCharTable[] = {
 
 static const crange controlRangeTable[] = {
     {0x0, 0x1F}, {0x7F, 0x9F}, {0x600, 0x605}, {0x200B, 0x200F},
-    {0x202A, 0x202E}, {0x2060, 0x2064}, {0x2066, 0x206F}, {0xE000, 0xF8FF},
-    {0xFFF9, 0xFFFB}
+    {0x202A, 0x202E}, {0x2060, 0x2064}, {0x2066, 0x206F}, {0xFFF9, 0xFFFB}
 #if CHRBITS > 16
-    ,{0x13430, 0x1343F}, {0x1BCA0, 0x1BCA3}, {0x1D173, 0x1D17A}, {0xE0020, 0xE007F},
-    {0xF0000, 0xFFFFD}, {0x100000, 0x10FFFD}
+    ,{0x13430, 0x1343F}, {0x1BCA0, 0x1BCA3}, {0x1D173, 0x1D17A}, {0xE0020, 0xE007F}
 #endif
 };
 
-#define NUM_CONTROL_RANGE (sizeof(controlRangeTable)/sizeof(crange))
+#define NUM_CONTROL_RANGE ((int)(sizeof(controlRangeTable)/sizeof(crange)))
 
 static const chr controlCharTable[] = {
     0xAD, 0x61C, 0x6DD, 0x70F, 0x890, 0x891, 0x8E2, 0x180E, 0xFEFF
@@ -316,7 +317,7 @@ static const chr controlCharTable[] = {
 #endif
 };
 
-#define NUM_CONTROL_CHAR (sizeof(controlCharTable)/sizeof(chr))
+#define NUM_CONTROL_CHAR ((int)(sizeof(controlCharTable)/sizeof(chr)))
 
 /*
  * Unicode: decimal digit characters.
@@ -334,17 +335,19 @@ static const crange digitRangeTable[] = {
     {0xA9D0, 0xA9D9}, {0xA9F0, 0xA9F9}, {0xAA50, 0xAA59}, {0xABF0, 0xABF9},
     {0xFF10, 0xFF19}
 #if CHRBITS > 16
-    ,{0x104A0, 0x104A9}, {0x10D30, 0x10D39}, {0x11066, 0x1106F}, {0x110F0, 0x110F9},
-    {0x11136, 0x1113F}, {0x111D0, 0x111D9}, {0x112F0, 0x112F9}, {0x11450, 0x11459},
-    {0x114D0, 0x114D9}, {0x11650, 0x11659}, {0x116C0, 0x116C9}, {0x11730, 0x11739},
-    {0x118E0, 0x118E9}, {0x11950, 0x11959}, {0x11C50, 0x11C59}, {0x11D50, 0x11D59},
-    {0x11DA0, 0x11DA9}, {0x11F50, 0x11F59}, {0x16A60, 0x16A69}, {0x16AC0, 0x16AC9},
-    {0x16B50, 0x16B59}, {0x1D7CE, 0x1D7FF}, {0x1E140, 0x1E149}, {0x1E2F0, 0x1E2F9},
-    {0x1E4F0, 0x1E4F9}, {0x1E950, 0x1E959}, {0x1FBF0, 0x1FBF9}
+    ,{0x104A0, 0x104A9}, {0x10D30, 0x10D39}, {0x10D40, 0x10D49}, {0x11066, 0x1106F},
+    {0x110F0, 0x110F9}, {0x11136, 0x1113F}, {0x111D0, 0x111D9}, {0x112F0, 0x112F9},
+    {0x11450, 0x11459}, {0x114D0, 0x114D9}, {0x11650, 0x11659}, {0x116C0, 0x116C9},
+    {0x116D0, 0x116E3}, {0x11730, 0x11739}, {0x118E0, 0x118E9}, {0x11950, 0x11959},
+    {0x11BF0, 0x11BF9}, {0x11C50, 0x11C59}, {0x11D50, 0x11D59}, {0x11DA0, 0x11DA9},
+    {0x11F50, 0x11F59}, {0x16130, 0x16139}, {0x16A60, 0x16A69}, {0x16AC0, 0x16AC9},
+    {0x16B50, 0x16B59}, {0x16D70, 0x16D79}, {0x1CCF0, 0x1CCF9}, {0x1D7CE, 0x1D7FF},
+    {0x1E140, 0x1E149}, {0x1E2F0, 0x1E2F9}, {0x1E4F0, 0x1E4F9}, {0x1E5F1, 0x1E5FA},
+    {0x1E950, 0x1E959}, {0x1FBF0, 0x1FBF9}
 #endif
 };
 
-#define NUM_DIGIT_RANGE (sizeof(digitRangeTable)/sizeof(crange))
+#define NUM_DIGIT_RANGE ((int)(sizeof(digitRangeTable)/sizeof(crange)))
 
 /*
  * no singletons of digit characters.
@@ -360,15 +363,15 @@ static const crange punctRangeTable[] = {
     {0x7F7, 0x7F9}, {0x830, 0x83E}, {0xF04, 0xF12}, {0xF3A, 0xF3D},
     {0xFD0, 0xFD4}, {0x104A, 0x104F}, {0x1360, 0x1368}, {0x16EB, 0x16ED},
     {0x17D4, 0x17D6}, {0x17D8, 0x17DA}, {0x1800, 0x180A}, {0x1AA0, 0x1AA6},
-    {0x1AA8, 0x1AAD}, {0x1B5A, 0x1B60}, {0x1BFC, 0x1BFF}, {0x1C3B, 0x1C3F},
-    {0x1CC0, 0x1CC7}, {0x2010, 0x2027}, {0x2030, 0x2043}, {0x2045, 0x2051},
-    {0x2053, 0x205E}, {0x2308, 0x230B}, {0x2768, 0x2775}, {0x27E6, 0x27EF},
-    {0x2983, 0x2998}, {0x29D8, 0x29DB}, {0x2CF9, 0x2CFC}, {0x2E00, 0x2E2E},
-    {0x2E30, 0x2E4F}, {0x2E52, 0x2E5D}, {0x3001, 0x3003}, {0x3008, 0x3011},
-    {0x3014, 0x301F}, {0xA60D, 0xA60F}, {0xA6F2, 0xA6F7}, {0xA874, 0xA877},
-    {0xA8F8, 0xA8FA}, {0xA9C1, 0xA9CD}, {0xAA5C, 0xAA5F}, {0xFE10, 0xFE19},
-    {0xFE30, 0xFE52}, {0xFE54, 0xFE61}, {0xFF01, 0xFF03}, {0xFF05, 0xFF0A},
-    {0xFF0C, 0xFF0F}, {0xFF3B, 0xFF3D}, {0xFF5F, 0xFF65}
+    {0x1AA8, 0x1AAD}, {0x1B5A, 0x1B60}, {0x1B7D, 0x1B7F}, {0x1BFC, 0x1BFF},
+    {0x1C3B, 0x1C3F}, {0x1CC0, 0x1CC7}, {0x2010, 0x2027}, {0x2030, 0x2043},
+    {0x2045, 0x2051}, {0x2053, 0x205E}, {0x2308, 0x230B}, {0x2768, 0x2775},
+    {0x27E6, 0x27EF}, {0x2983, 0x2998}, {0x29D8, 0x29DB}, {0x2CF9, 0x2CFC},
+    {0x2E00, 0x2E2E}, {0x2E30, 0x2E4F}, {0x2E52, 0x2E5D}, {0x3001, 0x3003},
+    {0x3008, 0x3011}, {0x3014, 0x301F}, {0xA60D, 0xA60F}, {0xA6F2, 0xA6F7},
+    {0xA874, 0xA877}, {0xA8F8, 0xA8FA}, {0xA9C1, 0xA9CD}, {0xAA5C, 0xAA5F},
+    {0xFE10, 0xFE19}, {0xFE30, 0xFE52}, {0xFE54, 0xFE61}, {0xFF01, 0xFF03},
+    {0xFF05, 0xFF0A}, {0xFF0C, 0xFF0F}, {0xFF3B, 0xFF3D}, {0xFF5F, 0xFF65}
 #if CHRBITS > 16
     ,{0x10100, 0x10102}, {0x10A50, 0x10A58}, {0x10AF0, 0x10AF6}, {0x10B39, 0x10B3F},
     {0x10B99, 0x10B9C}, {0x10F55, 0x10F59}, {0x10F86, 0x10F89}, {0x11047, 0x1104D},
@@ -376,12 +379,12 @@ static const crange punctRangeTable[] = {
     {0x11238, 0x1123D}, {0x1144B, 0x1144F}, {0x115C1, 0x115D7}, {0x11641, 0x11643},
     {0x11660, 0x1166C}, {0x1173C, 0x1173E}, {0x11944, 0x11946}, {0x11A3F, 0x11A46},
     {0x11A9A, 0x11A9C}, {0x11A9E, 0x11AA2}, {0x11B00, 0x11B09}, {0x11C41, 0x11C45},
-    {0x11F43, 0x11F4F}, {0x12470, 0x12474}, {0x16B37, 0x16B3B}, {0x16E97, 0x16E9A},
-    {0x1DA87, 0x1DA8B}
+    {0x11F43, 0x11F4F}, {0x12470, 0x12474}, {0x16B37, 0x16B3B}, {0x16D6D, 0x16D6F},
+    {0x16E97, 0x16E9A}, {0x1DA87, 0x1DA8B}
 #endif
 };
 
-#define NUM_PUNCT_RANGE (sizeof(punctRangeTable)/sizeof(crange))
+#define NUM_PUNCT_RANGE ((int)(sizeof(punctRangeTable)/sizeof(crange)))
 
 static const chr punctCharTable[] = {
     0x3A, 0x3B, 0x3F, 0x40, 0x5F, 0x7B, 0x7D, 0xA1, 0xA7,
@@ -390,7 +393,7 @@ static const chr punctCharTable[] = {
     0x60D, 0x61B, 0x6D4, 0x85E, 0x964, 0x965, 0x970, 0x9FD, 0xA76,
     0xAF0, 0xC77, 0xC84, 0xDF4, 0xE4F, 0xE5A, 0xE5B, 0xF14, 0xF85,
     0xFD9, 0xFDA, 0x10FB, 0x1400, 0x166E, 0x169B, 0x169C, 0x1735, 0x1736,
-    0x1944, 0x1945, 0x1A1E, 0x1A1F, 0x1B7D, 0x1B7E, 0x1C7E, 0x1C7F, 0x1CD3,
+    0x1944, 0x1945, 0x1A1E, 0x1A1F, 0x1B4E, 0x1B4F, 0x1C7E, 0x1C7F, 0x1CD3,
     0x207D, 0x207E, 0x208D, 0x208E, 0x2329, 0x232A, 0x27C5, 0x27C6, 0x29FC,
     0x29FD, 0x2CFE, 0x2CFF, 0x2D70, 0x3030, 0x303D, 0x30A0, 0x30FB, 0xA4FE,
     0xA4FF, 0xA673, 0xA67E, 0xA8CE, 0xA8CF, 0xA8FC, 0xA92E, 0xA92F, 0xA95F,
@@ -398,15 +401,15 @@ static const chr punctCharTable[] = {
     0xFE63, 0xFE68, 0xFE6A, 0xFE6B, 0xFF1A, 0xFF1B, 0xFF1F, 0xFF20, 0xFF3F,
     0xFF5B, 0xFF5D
 #if CHRBITS > 16
-    ,0x1039F, 0x103D0, 0x1056F, 0x10857, 0x1091F, 0x1093F, 0x10A7F, 0x10EAD, 0x110BB,
-    0x110BC, 0x11174, 0x11175, 0x111CD, 0x111DB, 0x112A9, 0x1145A, 0x1145B, 0x1145D,
-    0x114C6, 0x116B9, 0x1183B, 0x119E2, 0x11C70, 0x11C71, 0x11EF7, 0x11EF8, 0x11FFF,
-    0x12FF1, 0x12FF2, 0x16A6E, 0x16A6F, 0x16AF5, 0x16B44, 0x16FE2, 0x1BC9F, 0x1E95E,
-    0x1E95F
+    ,0x1039F, 0x103D0, 0x1056F, 0x10857, 0x1091F, 0x1093F, 0x10A7F, 0x10D6E, 0x10EAD,
+    0x110BB, 0x110BC, 0x11174, 0x11175, 0x111CD, 0x111DB, 0x112A9, 0x113D4, 0x113D5,
+    0x113D7, 0x113D8, 0x1145A, 0x1145B, 0x1145D, 0x114C6, 0x116B9, 0x1183B, 0x119E2,
+    0x11BE1, 0x11C70, 0x11C71, 0x11EF7, 0x11EF8, 0x11FFF, 0x12FF1, 0x12FF2, 0x16A6E,
+    0x16A6F, 0x16AF5, 0x16B44, 0x16FE2, 0x1BC9F, 0x1E5FF, 0x1E95E, 0x1E95F
 #endif
 };
 
-#define NUM_PUNCT_CHAR (sizeof(punctCharTable)/sizeof(chr))
+#define NUM_PUNCT_CHAR ((int)(sizeof(punctCharTable)/sizeof(chr)))
 
 /*
  * Unicode: white space characters.
@@ -416,14 +419,14 @@ static const crange spaceRangeTable[] = {
     {0x9, 0xD}, {0x2000, 0x200B}
 };
 
-#define NUM_SPACE_RANGE (sizeof(spaceRangeTable)/sizeof(crange))
+#define NUM_SPACE_RANGE ((int)(sizeof(spaceRangeTable)/sizeof(crange)))
 
 static const chr spaceCharTable[] = {
-    0x20, 0xA0, 0x1680, 0x180E, 0x2028, 0x2029, 0x202F, 0x205F,
+    0x20, 0x85, 0xA0, 0x1680, 0x180E, 0x2028, 0x2029, 0x202F, 0x205F,
     0x2060, 0x3000, 0xFEFF
 };
 
-#define NUM_SPACE_CHAR (sizeof(spaceCharTable)/sizeof(chr))
+#define NUM_SPACE_CHAR ((int)(sizeof(spaceCharTable)/sizeof(chr)))
 
 /*
  * Unicode: lowercase characters.
@@ -445,19 +448,19 @@ static const crange lowerRangeTable[] = {
     {0xAB70, 0xABBF}, {0xFB00, 0xFB06}, {0xFB13, 0xFB17}, {0xFF41, 0xFF5A}
 #if CHRBITS > 16
     ,{0x10428, 0x1044F}, {0x104D8, 0x104FB}, {0x10597, 0x105A1}, {0x105A3, 0x105B1},
-    {0x105B3, 0x105B9}, {0x10CC0, 0x10CF2}, {0x118C0, 0x118DF}, {0x16E60, 0x16E7F},
-    {0x1D41A, 0x1D433}, {0x1D44E, 0x1D454}, {0x1D456, 0x1D467}, {0x1D482, 0x1D49B},
-    {0x1D4B6, 0x1D4B9}, {0x1D4BD, 0x1D4C3}, {0x1D4C5, 0x1D4CF}, {0x1D4EA, 0x1D503},
-    {0x1D51E, 0x1D537}, {0x1D552, 0x1D56B}, {0x1D586, 0x1D59F}, {0x1D5BA, 0x1D5D3},
-    {0x1D5EE, 0x1D607}, {0x1D622, 0x1D63B}, {0x1D656, 0x1D66F}, {0x1D68A, 0x1D6A5},
-    {0x1D6C2, 0x1D6DA}, {0x1D6DC, 0x1D6E1}, {0x1D6FC, 0x1D714}, {0x1D716, 0x1D71B},
-    {0x1D736, 0x1D74E}, {0x1D750, 0x1D755}, {0x1D770, 0x1D788}, {0x1D78A, 0x1D78F},
-    {0x1D7AA, 0x1D7C2}, {0x1D7C4, 0x1D7C9}, {0x1DF00, 0x1DF09}, {0x1DF0B, 0x1DF1E},
-    {0x1DF25, 0x1DF2A}, {0x1E922, 0x1E943}
+    {0x105B3, 0x105B9}, {0x10CC0, 0x10CF2}, {0x10D70, 0x10D85}, {0x118C0, 0x118DF},
+    {0x16E60, 0x16E7F}, {0x1D41A, 0x1D433}, {0x1D44E, 0x1D454}, {0x1D456, 0x1D467},
+    {0x1D482, 0x1D49B}, {0x1D4B6, 0x1D4B9}, {0x1D4BD, 0x1D4C3}, {0x1D4C5, 0x1D4CF},
+    {0x1D4EA, 0x1D503}, {0x1D51E, 0x1D537}, {0x1D552, 0x1D56B}, {0x1D586, 0x1D59F},
+    {0x1D5BA, 0x1D5D3}, {0x1D5EE, 0x1D607}, {0x1D622, 0x1D63B}, {0x1D656, 0x1D66F},
+    {0x1D68A, 0x1D6A5}, {0x1D6C2, 0x1D6DA}, {0x1D6DC, 0x1D6E1}, {0x1D6FC, 0x1D714},
+    {0x1D716, 0x1D71B}, {0x1D736, 0x1D74E}, {0x1D750, 0x1D755}, {0x1D770, 0x1D788},
+    {0x1D78A, 0x1D78F}, {0x1D7AA, 0x1D7C2}, {0x1D7C4, 0x1D7C9}, {0x1DF00, 0x1DF09},
+    {0x1DF0B, 0x1DF1E}, {0x1DF25, 0x1DF2A}, {0x1E922, 0x1E943}
 #endif
 };
 
-#define NUM_LOWER_RANGE (sizeof(lowerRangeTable)/sizeof(crange))
+#define NUM_LOWER_RANGE ((int)(sizeof(lowerRangeTable)/sizeof(crange)))
 
 static const chr lowerCharTable[] = {
     0xB5, 0x101, 0x103, 0x105, 0x107, 0x109, 0x10B, 0x10D, 0x10F,
@@ -489,48 +492,49 @@ static const chr lowerCharTable[] = {
     0x4F1, 0x4F3, 0x4F5, 0x4F7, 0x4F9, 0x4FB, 0x4FD, 0x4FF, 0x501,
     0x503, 0x505, 0x507, 0x509, 0x50B, 0x50D, 0x50F, 0x511, 0x513,
     0x515, 0x517, 0x519, 0x51B, 0x51D, 0x51F, 0x521, 0x523, 0x525,
-    0x527, 0x529, 0x52B, 0x52D, 0x52F, 0x1E01, 0x1E03, 0x1E05, 0x1E07,
-    0x1E09, 0x1E0B, 0x1E0D, 0x1E0F, 0x1E11, 0x1E13, 0x1E15, 0x1E17, 0x1E19,
-    0x1E1B, 0x1E1D, 0x1E1F, 0x1E21, 0x1E23, 0x1E25, 0x1E27, 0x1E29, 0x1E2B,
-    0x1E2D, 0x1E2F, 0x1E31, 0x1E33, 0x1E35, 0x1E37, 0x1E39, 0x1E3B, 0x1E3D,
-    0x1E3F, 0x1E41, 0x1E43, 0x1E45, 0x1E47, 0x1E49, 0x1E4B, 0x1E4D, 0x1E4F,
-    0x1E51, 0x1E53, 0x1E55, 0x1E57, 0x1E59, 0x1E5B, 0x1E5D, 0x1E5F, 0x1E61,
-    0x1E63, 0x1E65, 0x1E67, 0x1E69, 0x1E6B, 0x1E6D, 0x1E6F, 0x1E71, 0x1E73,
-    0x1E75, 0x1E77, 0x1E79, 0x1E7B, 0x1E7D, 0x1E7F, 0x1E81, 0x1E83, 0x1E85,
-    0x1E87, 0x1E89, 0x1E8B, 0x1E8D, 0x1E8F, 0x1E91, 0x1E93, 0x1E9F, 0x1EA1,
-    0x1EA3, 0x1EA5, 0x1EA7, 0x1EA9, 0x1EAB, 0x1EAD, 0x1EAF, 0x1EB1, 0x1EB3,
-    0x1EB5, 0x1EB7, 0x1EB9, 0x1EBB, 0x1EBD, 0x1EBF, 0x1EC1, 0x1EC3, 0x1EC5,
-    0x1EC7, 0x1EC9, 0x1ECB, 0x1ECD, 0x1ECF, 0x1ED1, 0x1ED3, 0x1ED5, 0x1ED7,
-    0x1ED9, 0x1EDB, 0x1EDD, 0x1EDF, 0x1EE1, 0x1EE3, 0x1EE5, 0x1EE7, 0x1EE9,
-    0x1EEB, 0x1EED, 0x1EEF, 0x1EF1, 0x1EF3, 0x1EF5, 0x1EF7, 0x1EF9, 0x1EFB,
-    0x1EFD, 0x1FB6, 0x1FB7, 0x1FBE, 0x1FC6, 0x1FC7, 0x1FD6, 0x1FD7, 0x1FF6,
-    0x1FF7, 0x210A, 0x210E, 0x210F, 0x2113, 0x212F, 0x2134, 0x2139, 0x213C,
-    0x213D, 0x214E, 0x2184, 0x2C61, 0x2C65, 0x2C66, 0x2C68, 0x2C6A, 0x2C6C,
-    0x2C71, 0x2C73, 0x2C74, 0x2C81, 0x2C83, 0x2C85, 0x2C87, 0x2C89, 0x2C8B,
-    0x2C8D, 0x2C8F, 0x2C91, 0x2C93, 0x2C95, 0x2C97, 0x2C99, 0x2C9B, 0x2C9D,
-    0x2C9F, 0x2CA1, 0x2CA3, 0x2CA5, 0x2CA7, 0x2CA9, 0x2CAB, 0x2CAD, 0x2CAF,
-    0x2CB1, 0x2CB3, 0x2CB5, 0x2CB7, 0x2CB9, 0x2CBB, 0x2CBD, 0x2CBF, 0x2CC1,
-    0x2CC3, 0x2CC5, 0x2CC7, 0x2CC9, 0x2CCB, 0x2CCD, 0x2CCF, 0x2CD1, 0x2CD3,
-    0x2CD5, 0x2CD7, 0x2CD9, 0x2CDB, 0x2CDD, 0x2CDF, 0x2CE1, 0x2CE3, 0x2CE4,
-    0x2CEC, 0x2CEE, 0x2CF3, 0x2D27, 0x2D2D, 0xA641, 0xA643, 0xA645, 0xA647,
-    0xA649, 0xA64B, 0xA64D, 0xA64F, 0xA651, 0xA653, 0xA655, 0xA657, 0xA659,
-    0xA65B, 0xA65D, 0xA65F, 0xA661, 0xA663, 0xA665, 0xA667, 0xA669, 0xA66B,
-    0xA66D, 0xA681, 0xA683, 0xA685, 0xA687, 0xA689, 0xA68B, 0xA68D, 0xA68F,
-    0xA691, 0xA693, 0xA695, 0xA697, 0xA699, 0xA69B, 0xA723, 0xA725, 0xA727,
-    0xA729, 0xA72B, 0xA72D, 0xA733, 0xA735, 0xA737, 0xA739, 0xA73B, 0xA73D,
-    0xA73F, 0xA741, 0xA743, 0xA745, 0xA747, 0xA749, 0xA74B, 0xA74D, 0xA74F,
-    0xA751, 0xA753, 0xA755, 0xA757, 0xA759, 0xA75B, 0xA75D, 0xA75F, 0xA761,
-    0xA763, 0xA765, 0xA767, 0xA769, 0xA76B, 0xA76D, 0xA76F, 0xA77A, 0xA77C,
-    0xA77F, 0xA781, 0xA783, 0xA785, 0xA787, 0xA78C, 0xA78E, 0xA791, 0xA797,
-    0xA799, 0xA79B, 0xA79D, 0xA79F, 0xA7A1, 0xA7A3, 0xA7A5, 0xA7A7, 0xA7A9,
-    0xA7AF, 0xA7B5, 0xA7B7, 0xA7B9, 0xA7BB, 0xA7BD, 0xA7BF, 0xA7C1, 0xA7C3,
-    0xA7C8, 0xA7CA, 0xA7D1, 0xA7D3, 0xA7D5, 0xA7D7, 0xA7D9, 0xA7F6, 0xA7FA
+    0x527, 0x529, 0x52B, 0x52D, 0x52F, 0x1C8A, 0x1E01, 0x1E03, 0x1E05,
+    0x1E07, 0x1E09, 0x1E0B, 0x1E0D, 0x1E0F, 0x1E11, 0x1E13, 0x1E15, 0x1E17,
+    0x1E19, 0x1E1B, 0x1E1D, 0x1E1F, 0x1E21, 0x1E23, 0x1E25, 0x1E27, 0x1E29,
+    0x1E2B, 0x1E2D, 0x1E2F, 0x1E31, 0x1E33, 0x1E35, 0x1E37, 0x1E39, 0x1E3B,
+    0x1E3D, 0x1E3F, 0x1E41, 0x1E43, 0x1E45, 0x1E47, 0x1E49, 0x1E4B, 0x1E4D,
+    0x1E4F, 0x1E51, 0x1E53, 0x1E55, 0x1E57, 0x1E59, 0x1E5B, 0x1E5D, 0x1E5F,
+    0x1E61, 0x1E63, 0x1E65, 0x1E67, 0x1E69, 0x1E6B, 0x1E6D, 0x1E6F, 0x1E71,
+    0x1E73, 0x1E75, 0x1E77, 0x1E79, 0x1E7B, 0x1E7D, 0x1E7F, 0x1E81, 0x1E83,
+    0x1E85, 0x1E87, 0x1E89, 0x1E8B, 0x1E8D, 0x1E8F, 0x1E91, 0x1E93, 0x1E9F,
+    0x1EA1, 0x1EA3, 0x1EA5, 0x1EA7, 0x1EA9, 0x1EAB, 0x1EAD, 0x1EAF, 0x1EB1,
+    0x1EB3, 0x1EB5, 0x1EB7, 0x1EB9, 0x1EBB, 0x1EBD, 0x1EBF, 0x1EC1, 0x1EC3,
+    0x1EC5, 0x1EC7, 0x1EC9, 0x1ECB, 0x1ECD, 0x1ECF, 0x1ED1, 0x1ED3, 0x1ED5,
+    0x1ED7, 0x1ED9, 0x1EDB, 0x1EDD, 0x1EDF, 0x1EE1, 0x1EE3, 0x1EE5, 0x1EE7,
+    0x1EE9, 0x1EEB, 0x1EED, 0x1EEF, 0x1EF1, 0x1EF3, 0x1EF5, 0x1EF7, 0x1EF9,
+    0x1EFB, 0x1EFD, 0x1FB6, 0x1FB7, 0x1FBE, 0x1FC6, 0x1FC7, 0x1FD6, 0x1FD7,
+    0x1FF6, 0x1FF7, 0x210A, 0x210E, 0x210F, 0x2113, 0x212F, 0x2134, 0x2139,
+    0x213C, 0x213D, 0x214E, 0x2184, 0x2C61, 0x2C65, 0x2C66, 0x2C68, 0x2C6A,
+    0x2C6C, 0x2C71, 0x2C73, 0x2C74, 0x2C81, 0x2C83, 0x2C85, 0x2C87, 0x2C89,
+    0x2C8B, 0x2C8D, 0x2C8F, 0x2C91, 0x2C93, 0x2C95, 0x2C97, 0x2C99, 0x2C9B,
+    0x2C9D, 0x2C9F, 0x2CA1, 0x2CA3, 0x2CA5, 0x2CA7, 0x2CA9, 0x2CAB, 0x2CAD,
+    0x2CAF, 0x2CB1, 0x2CB3, 0x2CB5, 0x2CB7, 0x2CB9, 0x2CBB, 0x2CBD, 0x2CBF,
+    0x2CC1, 0x2CC3, 0x2CC5, 0x2CC7, 0x2CC9, 0x2CCB, 0x2CCD, 0x2CCF, 0x2CD1,
+    0x2CD3, 0x2CD5, 0x2CD7, 0x2CD9, 0x2CDB, 0x2CDD, 0x2CDF, 0x2CE1, 0x2CE3,
+    0x2CE4, 0x2CEC, 0x2CEE, 0x2CF3, 0x2D27, 0x2D2D, 0xA641, 0xA643, 0xA645,
+    0xA647, 0xA649, 0xA64B, 0xA64D, 0xA64F, 0xA651, 0xA653, 0xA655, 0xA657,
+    0xA659, 0xA65B, 0xA65D, 0xA65F, 0xA661, 0xA663, 0xA665, 0xA667, 0xA669,
+    0xA66B, 0xA66D, 0xA681, 0xA683, 0xA685, 0xA687, 0xA689, 0xA68B, 0xA68D,
+    0xA68F, 0xA691, 0xA693, 0xA695, 0xA697, 0xA699, 0xA69B, 0xA723, 0xA725,
+    0xA727, 0xA729, 0xA72B, 0xA72D, 0xA733, 0xA735, 0xA737, 0xA739, 0xA73B,
+    0xA73D, 0xA73F, 0xA741, 0xA743, 0xA745, 0xA747, 0xA749, 0xA74B, 0xA74D,
+    0xA74F, 0xA751, 0xA753, 0xA755, 0xA757, 0xA759, 0xA75B, 0xA75D, 0xA75F,
+    0xA761, 0xA763, 0xA765, 0xA767, 0xA769, 0xA76B, 0xA76D, 0xA76F, 0xA77A,
+    0xA77C, 0xA77F, 0xA781, 0xA783, 0xA785, 0xA787, 0xA78C, 0xA78E, 0xA791,
+    0xA797, 0xA799, 0xA79B, 0xA79D, 0xA79F, 0xA7A1, 0xA7A3, 0xA7A5, 0xA7A7,
+    0xA7A9, 0xA7AF, 0xA7B5, 0xA7B7, 0xA7B9, 0xA7BB, 0xA7BD, 0xA7BF, 0xA7C1,
+    0xA7C3, 0xA7C8, 0xA7CA, 0xA7CD, 0xA7D1, 0xA7D3, 0xA7D5, 0xA7D7, 0xA7D9,
+    0xA7DB, 0xA7F6, 0xA7FA
 #if CHRBITS > 16
     ,0x105BB, 0x105BC, 0x1D4BB, 0x1D7CB
 #endif
 };
 
-#define NUM_LOWER_CHAR (sizeof(lowerCharTable)/sizeof(chr))
+#define NUM_LOWER_CHAR ((int)(sizeof(lowerCharTable)/sizeof(chr)))
 
 /*
  * Unicode: uppercase characters.
@@ -550,17 +554,18 @@ static const crange upperRangeTable[] = {
     {0xA7B0, 0xA7B4}, {0xA7C4, 0xA7C7}, {0xFF21, 0xFF3A}
 #if CHRBITS > 16
     ,{0x10400, 0x10427}, {0x104B0, 0x104D3}, {0x10570, 0x1057A}, {0x1057C, 0x1058A},
-    {0x1058C, 0x10592}, {0x10C80, 0x10CB2}, {0x118A0, 0x118BF}, {0x16E40, 0x16E5F},
-    {0x1D400, 0x1D419}, {0x1D434, 0x1D44D}, {0x1D468, 0x1D481}, {0x1D4A9, 0x1D4AC},
-    {0x1D4AE, 0x1D4B5}, {0x1D4D0, 0x1D4E9}, {0x1D507, 0x1D50A}, {0x1D50D, 0x1D514},
-    {0x1D516, 0x1D51C}, {0x1D53B, 0x1D53E}, {0x1D540, 0x1D544}, {0x1D54A, 0x1D550},
-    {0x1D56C, 0x1D585}, {0x1D5A0, 0x1D5B9}, {0x1D5D4, 0x1D5ED}, {0x1D608, 0x1D621},
-    {0x1D63C, 0x1D655}, {0x1D670, 0x1D689}, {0x1D6A8, 0x1D6C0}, {0x1D6E2, 0x1D6FA},
-    {0x1D71C, 0x1D734}, {0x1D756, 0x1D76E}, {0x1D790, 0x1D7A8}, {0x1E900, 0x1E921}
+    {0x1058C, 0x10592}, {0x10C80, 0x10CB2}, {0x10D50, 0x10D65}, {0x118A0, 0x118BF},
+    {0x16E40, 0x16E5F}, {0x1D400, 0x1D419}, {0x1D434, 0x1D44D}, {0x1D468, 0x1D481},
+    {0x1D4A9, 0x1D4AC}, {0x1D4AE, 0x1D4B5}, {0x1D4D0, 0x1D4E9}, {0x1D507, 0x1D50A},
+    {0x1D50D, 0x1D514}, {0x1D516, 0x1D51C}, {0x1D53B, 0x1D53E}, {0x1D540, 0x1D544},
+    {0x1D54A, 0x1D550}, {0x1D56C, 0x1D585}, {0x1D5A0, 0x1D5B9}, {0x1D5D4, 0x1D5ED},
+    {0x1D608, 0x1D621}, {0x1D63C, 0x1D655}, {0x1D670, 0x1D689}, {0x1D6A8, 0x1D6C0},
+    {0x1D6E2, 0x1D6FA}, {0x1D71C, 0x1D734}, {0x1D756, 0x1D76E}, {0x1D790, 0x1D7A8},
+    {0x1E900, 0x1E921}
 #endif
 };
 
-#define NUM_UPPER_RANGE (sizeof(upperRangeTable)/sizeof(crange))
+#define NUM_UPPER_RANGE ((int)(sizeof(upperRangeTable)/sizeof(crange)))
 
 static const chr upperCharTable[] = {
     0x100, 0x102, 0x104, 0x106, 0x108, 0x10A, 0x10C, 0x10E, 0x110,
@@ -593,48 +598,48 @@ static const chr upperCharTable[] = {
     0x4F8, 0x4FA, 0x4FC, 0x4FE, 0x500, 0x502, 0x504, 0x506, 0x508,
     0x50A, 0x50C, 0x50E, 0x510, 0x512, 0x514, 0x516, 0x518, 0x51A,
     0x51C, 0x51E, 0x520, 0x522, 0x524, 0x526, 0x528, 0x52A, 0x52C,
-    0x52E, 0x10C7, 0x10CD, 0x1E00, 0x1E02, 0x1E04, 0x1E06, 0x1E08, 0x1E0A,
-    0x1E0C, 0x1E0E, 0x1E10, 0x1E12, 0x1E14, 0x1E16, 0x1E18, 0x1E1A, 0x1E1C,
-    0x1E1E, 0x1E20, 0x1E22, 0x1E24, 0x1E26, 0x1E28, 0x1E2A, 0x1E2C, 0x1E2E,
-    0x1E30, 0x1E32, 0x1E34, 0x1E36, 0x1E38, 0x1E3A, 0x1E3C, 0x1E3E, 0x1E40,
-    0x1E42, 0x1E44, 0x1E46, 0x1E48, 0x1E4A, 0x1E4C, 0x1E4E, 0x1E50, 0x1E52,
-    0x1E54, 0x1E56, 0x1E58, 0x1E5A, 0x1E5C, 0x1E5E, 0x1E60, 0x1E62, 0x1E64,
-    0x1E66, 0x1E68, 0x1E6A, 0x1E6C, 0x1E6E, 0x1E70, 0x1E72, 0x1E74, 0x1E76,
-    0x1E78, 0x1E7A, 0x1E7C, 0x1E7E, 0x1E80, 0x1E82, 0x1E84, 0x1E86, 0x1E88,
-    0x1E8A, 0x1E8C, 0x1E8E, 0x1E90, 0x1E92, 0x1E94, 0x1E9E, 0x1EA0, 0x1EA2,
-    0x1EA4, 0x1EA6, 0x1EA8, 0x1EAA, 0x1EAC, 0x1EAE, 0x1EB0, 0x1EB2, 0x1EB4,
-    0x1EB6, 0x1EB8, 0x1EBA, 0x1EBC, 0x1EBE, 0x1EC0, 0x1EC2, 0x1EC4, 0x1EC6,
-    0x1EC8, 0x1ECA, 0x1ECC, 0x1ECE, 0x1ED0, 0x1ED2, 0x1ED4, 0x1ED6, 0x1ED8,
-    0x1EDA, 0x1EDC, 0x1EDE, 0x1EE0, 0x1EE2, 0x1EE4, 0x1EE6, 0x1EE8, 0x1EEA,
-    0x1EEC, 0x1EEE, 0x1EF0, 0x1EF2, 0x1EF4, 0x1EF6, 0x1EF8, 0x1EFA, 0x1EFC,
-    0x1EFE, 0x1F59, 0x1F5B, 0x1F5D, 0x1F5F, 0x2102, 0x2107, 0x2115, 0x2124,
-    0x2126, 0x2128, 0x213E, 0x213F, 0x2145, 0x2183, 0x2C60, 0x2C67, 0x2C69,
-    0x2C6B, 0x2C72, 0x2C75, 0x2C82, 0x2C84, 0x2C86, 0x2C88, 0x2C8A, 0x2C8C,
-    0x2C8E, 0x2C90, 0x2C92, 0x2C94, 0x2C96, 0x2C98, 0x2C9A, 0x2C9C, 0x2C9E,
-    0x2CA0, 0x2CA2, 0x2CA4, 0x2CA6, 0x2CA8, 0x2CAA, 0x2CAC, 0x2CAE, 0x2CB0,
-    0x2CB2, 0x2CB4, 0x2CB6, 0x2CB8, 0x2CBA, 0x2CBC, 0x2CBE, 0x2CC0, 0x2CC2,
-    0x2CC4, 0x2CC6, 0x2CC8, 0x2CCA, 0x2CCC, 0x2CCE, 0x2CD0, 0x2CD2, 0x2CD4,
-    0x2CD6, 0x2CD8, 0x2CDA, 0x2CDC, 0x2CDE, 0x2CE0, 0x2CE2, 0x2CEB, 0x2CED,
-    0x2CF2, 0xA640, 0xA642, 0xA644, 0xA646, 0xA648, 0xA64A, 0xA64C, 0xA64E,
-    0xA650, 0xA652, 0xA654, 0xA656, 0xA658, 0xA65A, 0xA65C, 0xA65E, 0xA660,
-    0xA662, 0xA664, 0xA666, 0xA668, 0xA66A, 0xA66C, 0xA680, 0xA682, 0xA684,
-    0xA686, 0xA688, 0xA68A, 0xA68C, 0xA68E, 0xA690, 0xA692, 0xA694, 0xA696,
-    0xA698, 0xA69A, 0xA722, 0xA724, 0xA726, 0xA728, 0xA72A, 0xA72C, 0xA72E,
-    0xA732, 0xA734, 0xA736, 0xA738, 0xA73A, 0xA73C, 0xA73E, 0xA740, 0xA742,
-    0xA744, 0xA746, 0xA748, 0xA74A, 0xA74C, 0xA74E, 0xA750, 0xA752, 0xA754,
-    0xA756, 0xA758, 0xA75A, 0xA75C, 0xA75E, 0xA760, 0xA762, 0xA764, 0xA766,
-    0xA768, 0xA76A, 0xA76C, 0xA76E, 0xA779, 0xA77B, 0xA77D, 0xA77E, 0xA780,
-    0xA782, 0xA784, 0xA786, 0xA78B, 0xA78D, 0xA790, 0xA792, 0xA796, 0xA798,
-    0xA79A, 0xA79C, 0xA79E, 0xA7A0, 0xA7A2, 0xA7A4, 0xA7A6, 0xA7A8, 0xA7B6,
-    0xA7B8, 0xA7BA, 0xA7BC, 0xA7BE, 0xA7C0, 0xA7C2, 0xA7C9, 0xA7D0, 0xA7D6,
-    0xA7D8, 0xA7F5
+    0x52E, 0x10C7, 0x10CD, 0x1C89, 0x1E00, 0x1E02, 0x1E04, 0x1E06, 0x1E08,
+    0x1E0A, 0x1E0C, 0x1E0E, 0x1E10, 0x1E12, 0x1E14, 0x1E16, 0x1E18, 0x1E1A,
+    0x1E1C, 0x1E1E, 0x1E20, 0x1E22, 0x1E24, 0x1E26, 0x1E28, 0x1E2A, 0x1E2C,
+    0x1E2E, 0x1E30, 0x1E32, 0x1E34, 0x1E36, 0x1E38, 0x1E3A, 0x1E3C, 0x1E3E,
+    0x1E40, 0x1E42, 0x1E44, 0x1E46, 0x1E48, 0x1E4A, 0x1E4C, 0x1E4E, 0x1E50,
+    0x1E52, 0x1E54, 0x1E56, 0x1E58, 0x1E5A, 0x1E5C, 0x1E5E, 0x1E60, 0x1E62,
+    0x1E64, 0x1E66, 0x1E68, 0x1E6A, 0x1E6C, 0x1E6E, 0x1E70, 0x1E72, 0x1E74,
+    0x1E76, 0x1E78, 0x1E7A, 0x1E7C, 0x1E7E, 0x1E80, 0x1E82, 0x1E84, 0x1E86,
+    0x1E88, 0x1E8A, 0x1E8C, 0x1E8E, 0x1E90, 0x1E92, 0x1E94, 0x1E9E, 0x1EA0,
+    0x1EA2, 0x1EA4, 0x1EA6, 0x1EA8, 0x1EAA, 0x1EAC, 0x1EAE, 0x1EB0, 0x1EB2,
+    0x1EB4, 0x1EB6, 0x1EB8, 0x1EBA, 0x1EBC, 0x1EBE, 0x1EC0, 0x1EC2, 0x1EC4,
+    0x1EC6, 0x1EC8, 0x1ECA, 0x1ECC, 0x1ECE, 0x1ED0, 0x1ED2, 0x1ED4, 0x1ED6,
+    0x1ED8, 0x1EDA, 0x1EDC, 0x1EDE, 0x1EE0, 0x1EE2, 0x1EE4, 0x1EE6, 0x1EE8,
+    0x1EEA, 0x1EEC, 0x1EEE, 0x1EF0, 0x1EF2, 0x1EF4, 0x1EF6, 0x1EF8, 0x1EFA,
+    0x1EFC, 0x1EFE, 0x1F59, 0x1F5B, 0x1F5D, 0x1F5F, 0x2102, 0x2107, 0x2115,
+    0x2124, 0x2126, 0x2128, 0x213E, 0x213F, 0x2145, 0x2183, 0x2C60, 0x2C67,
+    0x2C69, 0x2C6B, 0x2C72, 0x2C75, 0x2C82, 0x2C84, 0x2C86, 0x2C88, 0x2C8A,
+    0x2C8C, 0x2C8E, 0x2C90, 0x2C92, 0x2C94, 0x2C96, 0x2C98, 0x2C9A, 0x2C9C,
+    0x2C9E, 0x2CA0, 0x2CA2, 0x2CA4, 0x2CA6, 0x2CA8, 0x2CAA, 0x2CAC, 0x2CAE,
+    0x2CB0, 0x2CB2, 0x2CB4, 0x2CB6, 0x2CB8, 0x2CBA, 0x2CBC, 0x2CBE, 0x2CC0,
+    0x2CC2, 0x2CC4, 0x2CC6, 0x2CC8, 0x2CCA, 0x2CCC, 0x2CCE, 0x2CD0, 0x2CD2,
+    0x2CD4, 0x2CD6, 0x2CD8, 0x2CDA, 0x2CDC, 0x2CDE, 0x2CE0, 0x2CE2, 0x2CEB,
+    0x2CED, 0x2CF2, 0xA640, 0xA642, 0xA644, 0xA646, 0xA648, 0xA64A, 0xA64C,
+    0xA64E, 0xA650, 0xA652, 0xA654, 0xA656, 0xA658, 0xA65A, 0xA65C, 0xA65E,
+    0xA660, 0xA662, 0xA664, 0xA666, 0xA668, 0xA66A, 0xA66C, 0xA680, 0xA682,
+    0xA684, 0xA686, 0xA688, 0xA68A, 0xA68C, 0xA68E, 0xA690, 0xA692, 0xA694,
+    0xA696, 0xA698, 0xA69A, 0xA722, 0xA724, 0xA726, 0xA728, 0xA72A, 0xA72C,
+    0xA72E, 0xA732, 0xA734, 0xA736, 0xA738, 0xA73A, 0xA73C, 0xA73E, 0xA740,
+    0xA742, 0xA744, 0xA746, 0xA748, 0xA74A, 0xA74C, 0xA74E, 0xA750, 0xA752,
+    0xA754, 0xA756, 0xA758, 0xA75A, 0xA75C, 0xA75E, 0xA760, 0xA762, 0xA764,
+    0xA766, 0xA768, 0xA76A, 0xA76C, 0xA76E, 0xA779, 0xA77B, 0xA77D, 0xA77E,
+    0xA780, 0xA782, 0xA784, 0xA786, 0xA78B, 0xA78D, 0xA790, 0xA792, 0xA796,
+    0xA798, 0xA79A, 0xA79C, 0xA79E, 0xA7A0, 0xA7A2, 0xA7A4, 0xA7A6, 0xA7A8,
+    0xA7B6, 0xA7B8, 0xA7BA, 0xA7BC, 0xA7BE, 0xA7C0, 0xA7C2, 0xA7C9, 0xA7CB,
+    0xA7CC, 0xA7D0, 0xA7D6, 0xA7D8, 0xA7DA, 0xA7DC, 0xA7F5
 #if CHRBITS > 16
     ,0x10594, 0x10595, 0x1D49C, 0x1D49E, 0x1D49F, 0x1D4A2, 0x1D4A5, 0x1D4A6, 0x1D504,
     0x1D505, 0x1D538, 0x1D539, 0x1D546, 0x1D7CA
 #endif
 };
 
-#define NUM_UPPER_CHAR (sizeof(upperCharTable)/sizeof(chr))
+#define NUM_UPPER_CHAR ((int)(sizeof(upperCharTable)/sizeof(chr)))
 
 /*
  * Unicode: unicode print characters excluding space.
@@ -647,7 +652,7 @@ static const crange graphRangeTable[] = {
     {0x5EF, 0x5F4}, {0x606, 0x61B}, {0x61D, 0x6DC}, {0x6DE, 0x70D},
     {0x710, 0x74A}, {0x74D, 0x7B1}, {0x7C0, 0x7FA}, {0x7FD, 0x82D},
     {0x830, 0x83E}, {0x840, 0x85B}, {0x860, 0x86A}, {0x870, 0x88E},
-    {0x898, 0x8E1}, {0x8E3, 0x983}, {0x985, 0x98C}, {0x993, 0x9A8},
+    {0x897, 0x8E1}, {0x8E3, 0x983}, {0x985, 0x98C}, {0x993, 0x9A8},
     {0x9AA, 0x9B0}, {0x9B6, 0x9B9}, {0x9BC, 0x9C4}, {0x9CB, 0x9CE},
     {0x9DF, 0x9E3}, {0x9E6, 0x9FE}, {0xA01, 0xA03}, {0xA05, 0xA0A},
     {0xA13, 0xA28}, {0xA2A, 0xA30}, {0xA3E, 0xA42}, {0xA4B, 0xA4D},
@@ -685,34 +690,34 @@ static const crange graphRangeTable[] = {
     {0x1970, 0x1974}, {0x1980, 0x19AB}, {0x19B0, 0x19C9}, {0x19D0, 0x19DA},
     {0x19DE, 0x1A1B}, {0x1A1E, 0x1A5E}, {0x1A60, 0x1A7C}, {0x1A7F, 0x1A89},
     {0x1A90, 0x1A99}, {0x1AA0, 0x1AAD}, {0x1AB0, 0x1ACE}, {0x1B00, 0x1B4C},
-    {0x1B50, 0x1B7E}, {0x1B80, 0x1BF3}, {0x1BFC, 0x1C37}, {0x1C3B, 0x1C49},
-    {0x1C4D, 0x1C88}, {0x1C90, 0x1CBA}, {0x1CBD, 0x1CC7}, {0x1CD0, 0x1CFA},
-    {0x1D00, 0x1F15}, {0x1F18, 0x1F1D}, {0x1F20, 0x1F45}, {0x1F48, 0x1F4D},
-    {0x1F50, 0x1F57}, {0x1F5F, 0x1F7D}, {0x1F80, 0x1FB4}, {0x1FB6, 0x1FC4},
-    {0x1FC6, 0x1FD3}, {0x1FD6, 0x1FDB}, {0x1FDD, 0x1FEF}, {0x1FF2, 0x1FF4},
-    {0x1FF6, 0x1FFE}, {0x2010, 0x2027}, {0x2030, 0x205E}, {0x2074, 0x208E},
-    {0x2090, 0x209C}, {0x20A0, 0x20C0}, {0x20D0, 0x20F0}, {0x2100, 0x218B},
-    {0x2190, 0x2426}, {0x2440, 0x244A}, {0x2460, 0x2B73}, {0x2B76, 0x2B95},
-    {0x2B97, 0x2CF3}, {0x2CF9, 0x2D25}, {0x2D30, 0x2D67}, {0x2D7F, 0x2D96},
-    {0x2DA0, 0x2DA6}, {0x2DA8, 0x2DAE}, {0x2DB0, 0x2DB6}, {0x2DB8, 0x2DBE},
-    {0x2DC0, 0x2DC6}, {0x2DC8, 0x2DCE}, {0x2DD0, 0x2DD6}, {0x2DD8, 0x2DDE},
-    {0x2DE0, 0x2E5D}, {0x2E80, 0x2E99}, {0x2E9B, 0x2EF3}, {0x2F00, 0x2FD5},
-    {0x2FF0, 0x2FFB}, {0x3001, 0x303F}, {0x3041, 0x3096}, {0x3099, 0x30FF},
-    {0x3105, 0x312F}, {0x3131, 0x318E}, {0x3190, 0x31E3}, {0x31F0, 0x321E},
-    {0x3220, 0xA48C}, {0xA490, 0xA4C6}, {0xA4D0, 0xA62B}, {0xA640, 0xA6F7},
-    {0xA700, 0xA7CA}, {0xA7D5, 0xA7D9}, {0xA7F2, 0xA82C}, {0xA830, 0xA839},
-    {0xA840, 0xA877}, {0xA880, 0xA8C5}, {0xA8CE, 0xA8D9}, {0xA8E0, 0xA953},
-    {0xA95F, 0xA97C}, {0xA980, 0xA9CD}, {0xA9CF, 0xA9D9}, {0xA9DE, 0xA9FE},
-    {0xAA00, 0xAA36}, {0xAA40, 0xAA4D}, {0xAA50, 0xAA59}, {0xAA5C, 0xAAC2},
-    {0xAADB, 0xAAF6}, {0xAB01, 0xAB06}, {0xAB09, 0xAB0E}, {0xAB11, 0xAB16},
-    {0xAB20, 0xAB26}, {0xAB28, 0xAB2E}, {0xAB30, 0xAB6B}, {0xAB70, 0xABED},
-    {0xABF0, 0xABF9}, {0xAC00, 0xD7A3}, {0xD7B0, 0xD7C6}, {0xD7CB, 0xD7FB},
-    {0xF900, 0xFA6D}, {0xFA70, 0xFAD9}, {0xFB00, 0xFB06}, {0xFB13, 0xFB17},
-    {0xFB1D, 0xFB36}, {0xFB38, 0xFB3C}, {0xFB46, 0xFBC2}, {0xFBD3, 0xFD8F},
-    {0xFD92, 0xFDC7}, {0xFDF0, 0xFE19}, {0xFE20, 0xFE52}, {0xFE54, 0xFE66},
-    {0xFE68, 0xFE6B}, {0xFE70, 0xFE74}, {0xFE76, 0xFEFC}, {0xFF01, 0xFFBE},
-    {0xFFC2, 0xFFC7}, {0xFFCA, 0xFFCF}, {0xFFD2, 0xFFD7}, {0xFFDA, 0xFFDC},
-    {0xFFE0, 0xFFE6}, {0xFFE8, 0xFFEE}
+    {0x1B4E, 0x1BF3}, {0x1BFC, 0x1C37}, {0x1C3B, 0x1C49}, {0x1C4D, 0x1C8A},
+    {0x1C90, 0x1CBA}, {0x1CBD, 0x1CC7}, {0x1CD0, 0x1CFA}, {0x1D00, 0x1F15},
+    {0x1F18, 0x1F1D}, {0x1F20, 0x1F45}, {0x1F48, 0x1F4D}, {0x1F50, 0x1F57},
+    {0x1F5F, 0x1F7D}, {0x1F80, 0x1FB4}, {0x1FB6, 0x1FC4}, {0x1FC6, 0x1FD3},
+    {0x1FD6, 0x1FDB}, {0x1FDD, 0x1FEF}, {0x1FF2, 0x1FF4}, {0x1FF6, 0x1FFE},
+    {0x2010, 0x2027}, {0x2030, 0x205E}, {0x2074, 0x208E}, {0x2090, 0x209C},
+    {0x20A0, 0x20C0}, {0x20D0, 0x20F0}, {0x2100, 0x218B}, {0x2190, 0x2429},
+    {0x2440, 0x244A}, {0x2460, 0x2B73}, {0x2B76, 0x2B95}, {0x2B97, 0x2CF3},
+    {0x2CF9, 0x2D25}, {0x2D30, 0x2D67}, {0x2D7F, 0x2D96}, {0x2DA0, 0x2DA6},
+    {0x2DA8, 0x2DAE}, {0x2DB0, 0x2DB6}, {0x2DB8, 0x2DBE}, {0x2DC0, 0x2DC6},
+    {0x2DC8, 0x2DCE}, {0x2DD0, 0x2DD6}, {0x2DD8, 0x2DDE}, {0x2DE0, 0x2E5D},
+    {0x2E80, 0x2E99}, {0x2E9B, 0x2EF3}, {0x2F00, 0x2FD5}, {0x2FF0, 0x2FFF},
+    {0x3001, 0x303F}, {0x3041, 0x3096}, {0x3099, 0x30FF}, {0x3105, 0x312F},
+    {0x3131, 0x318E}, {0x3190, 0x31E5}, {0x31EF, 0x321E}, {0x3220, 0xA48C},
+    {0xA490, 0xA4C6}, {0xA4D0, 0xA62B}, {0xA640, 0xA6F7}, {0xA700, 0xA7CD},
+    {0xA7D5, 0xA7DC}, {0xA7F2, 0xA82C}, {0xA830, 0xA839}, {0xA840, 0xA877},
+    {0xA880, 0xA8C5}, {0xA8CE, 0xA8D9}, {0xA8E0, 0xA953}, {0xA95F, 0xA97C},
+    {0xA980, 0xA9CD}, {0xA9CF, 0xA9D9}, {0xA9DE, 0xA9FE}, {0xAA00, 0xAA36},
+    {0xAA40, 0xAA4D}, {0xAA50, 0xAA59}, {0xAA5C, 0xAAC2}, {0xAADB, 0xAAF6},
+    {0xAB01, 0xAB06}, {0xAB09, 0xAB0E}, {0xAB11, 0xAB16}, {0xAB20, 0xAB26},
+    {0xAB28, 0xAB2E}, {0xAB30, 0xAB6B}, {0xAB70, 0xABED}, {0xABF0, 0xABF9},
+    {0xAC00, 0xD7A3}, {0xD7B0, 0xD7C6}, {0xD7CB, 0xD7FB}, {0xF900, 0xFA6D},
+    {0xFA70, 0xFAD9}, {0xFB00, 0xFB06}, {0xFB13, 0xFB17}, {0xFB1D, 0xFB36},
+    {0xFB38, 0xFB3C}, {0xFB46, 0xFBC2}, {0xFBD3, 0xFD8F}, {0xFD92, 0xFDC7},
+    {0xFDF0, 0xFE19}, {0xFE20, 0xFE52}, {0xFE54, 0xFE66}, {0xFE68, 0xFE6B},
+    {0xFE70, 0xFE74}, {0xFE76, 0xFEFC}, {0xFF01, 0xFFBE}, {0xFFC2, 0xFFC7},
+    {0xFFCA, 0xFFCF}, {0xFFD2, 0xFFD7}, {0xFFDA, 0xFFDC}, {0xFFE0, 0xFFE6},
+    {0xFFE8, 0xFFEE}
 #if CHRBITS > 16
     ,{0x10000, 0x1000B}, {0x1000D, 0x10026}, {0x10028, 0x1003A}, {0x1003F, 0x1004D},
     {0x10050, 0x1005D}, {0x10080, 0x100FA}, {0x10100, 0x10102}, {0x10107, 0x10133},
@@ -722,17 +727,18 @@ static const crange graphRangeTable[] = {
     {0x10400, 0x1049D}, {0x104A0, 0x104A9}, {0x104B0, 0x104D3}, {0x104D8, 0x104FB},
     {0x10500, 0x10527}, {0x10530, 0x10563}, {0x1056F, 0x1057A}, {0x1057C, 0x1058A},
     {0x1058C, 0x10592}, {0x10597, 0x105A1}, {0x105A3, 0x105B1}, {0x105B3, 0x105B9},
-    {0x10600, 0x10736}, {0x10740, 0x10755}, {0x10760, 0x10767}, {0x10780, 0x10785},
-    {0x10787, 0x107B0}, {0x107B2, 0x107BA}, {0x10800, 0x10805}, {0x1080A, 0x10835},
-    {0x1083F, 0x10855}, {0x10857, 0x1089E}, {0x108A7, 0x108AF}, {0x108E0, 0x108F2},
-    {0x108FB, 0x1091B}, {0x1091F, 0x10939}, {0x10980, 0x109B7}, {0x109BC, 0x109CF},
-    {0x109D2, 0x10A03}, {0x10A0C, 0x10A13}, {0x10A15, 0x10A17}, {0x10A19, 0x10A35},
-    {0x10A38, 0x10A3A}, {0x10A3F, 0x10A48}, {0x10A50, 0x10A58}, {0x10A60, 0x10A9F},
-    {0x10AC0, 0x10AE6}, {0x10AEB, 0x10AF6}, {0x10B00, 0x10B35}, {0x10B39, 0x10B55},
-    {0x10B58, 0x10B72}, {0x10B78, 0x10B91}, {0x10B99, 0x10B9C}, {0x10BA9, 0x10BAF},
-    {0x10C00, 0x10C48}, {0x10C80, 0x10CB2}, {0x10CC0, 0x10CF2}, {0x10CFA, 0x10D27},
-    {0x10D30, 0x10D39}, {0x10E60, 0x10E7E}, {0x10E80, 0x10EA9}, {0x10EAB, 0x10EAD},
-    {0x10EFD, 0x10F27}, {0x10F30, 0x10F59}, {0x10F70, 0x10F89}, {0x10FB0, 0x10FCB},
+    {0x105C0, 0x105F3}, {0x10600, 0x10736}, {0x10740, 0x10755}, {0x10760, 0x10767},
+    {0x10780, 0x10785}, {0x10787, 0x107B0}, {0x107B2, 0x107BA}, {0x10800, 0x10805},
+    {0x1080A, 0x10835}, {0x1083F, 0x10855}, {0x10857, 0x1089E}, {0x108A7, 0x108AF},
+    {0x108E0, 0x108F2}, {0x108FB, 0x1091B}, {0x1091F, 0x10939}, {0x10980, 0x109B7},
+    {0x109BC, 0x109CF}, {0x109D2, 0x10A03}, {0x10A0C, 0x10A13}, {0x10A15, 0x10A17},
+    {0x10A19, 0x10A35}, {0x10A38, 0x10A3A}, {0x10A3F, 0x10A48}, {0x10A50, 0x10A58},
+    {0x10A60, 0x10A9F}, {0x10AC0, 0x10AE6}, {0x10AEB, 0x10AF6}, {0x10B00, 0x10B35},
+    {0x10B39, 0x10B55}, {0x10B58, 0x10B72}, {0x10B78, 0x10B91}, {0x10B99, 0x10B9C},
+    {0x10BA9, 0x10BAF}, {0x10C00, 0x10C48}, {0x10C80, 0x10CB2}, {0x10CC0, 0x10CF2},
+    {0x10CFA, 0x10D27}, {0x10D30, 0x10D39}, {0x10D40, 0x10D65}, {0x10D69, 0x10D85},
+    {0x10E60, 0x10E7E}, {0x10E80, 0x10EA9}, {0x10EAB, 0x10EAD}, {0x10EC2, 0x10EC4},
+    {0x10EFC, 0x10F27}, {0x10F30, 0x10F59}, {0x10F70, 0x10F89}, {0x10FB0, 0x10FCB},
     {0x10FE0, 0x10FF6}, {0x11000, 0x1104D}, {0x11052, 0x11075}, {0x1107F, 0x110BC},
     {0x110BE, 0x110C2}, {0x110D0, 0x110E8}, {0x110F0, 0x110F9}, {0x11100, 0x11134},
     {0x11136, 0x11147}, {0x11150, 0x11176}, {0x11180, 0x111DF}, {0x111E1, 0x111F4},
@@ -740,60 +746,63 @@ static const crange graphRangeTable[] = {
     {0x1128F, 0x1129D}, {0x1129F, 0x112A9}, {0x112B0, 0x112EA}, {0x112F0, 0x112F9},
     {0x11300, 0x11303}, {0x11305, 0x1130C}, {0x11313, 0x11328}, {0x1132A, 0x11330},
     {0x11335, 0x11339}, {0x1133B, 0x11344}, {0x1134B, 0x1134D}, {0x1135D, 0x11363},
-    {0x11366, 0x1136C}, {0x11370, 0x11374}, {0x11400, 0x1145B}, {0x1145D, 0x11461},
-    {0x11480, 0x114C7}, {0x114D0, 0x114D9}, {0x11580, 0x115B5}, {0x115B8, 0x115DD},
-    {0x11600, 0x11644}, {0x11650, 0x11659}, {0x11660, 0x1166C}, {0x11680, 0x116B9},
-    {0x116C0, 0x116C9}, {0x11700, 0x1171A}, {0x1171D, 0x1172B}, {0x11730, 0x11746},
-    {0x11800, 0x1183B}, {0x118A0, 0x118F2}, {0x118FF, 0x11906}, {0x1190C, 0x11913},
-    {0x11918, 0x11935}, {0x1193B, 0x11946}, {0x11950, 0x11959}, {0x119A0, 0x119A7},
-    {0x119AA, 0x119D7}, {0x119DA, 0x119E4}, {0x11A00, 0x11A47}, {0x11A50, 0x11AA2},
-    {0x11AB0, 0x11AF8}, {0x11B00, 0x11B09}, {0x11C00, 0x11C08}, {0x11C0A, 0x11C36},
+    {0x11366, 0x1136C}, {0x11370, 0x11374}, {0x11380, 0x11389}, {0x11390, 0x113B5},
+    {0x113B7, 0x113C0}, {0x113C7, 0x113CA}, {0x113CC, 0x113D5}, {0x11400, 0x1145B},
+    {0x1145D, 0x11461}, {0x11480, 0x114C7}, {0x114D0, 0x114D9}, {0x11580, 0x115B5},
+    {0x115B8, 0x115DD}, {0x11600, 0x11644}, {0x11650, 0x11659}, {0x11660, 0x1166C},
+    {0x11680, 0x116B9}, {0x116C0, 0x116C9}, {0x116D0, 0x116E3}, {0x11700, 0x1171A},
+    {0x1171D, 0x1172B}, {0x11730, 0x11746}, {0x11800, 0x1183B}, {0x118A0, 0x118F2},
+    {0x118FF, 0x11906}, {0x1190C, 0x11913}, {0x11918, 0x11935}, {0x1193B, 0x11946},
+    {0x11950, 0x11959}, {0x119A0, 0x119A7}, {0x119AA, 0x119D7}, {0x119DA, 0x119E4},
+    {0x11A00, 0x11A47}, {0x11A50, 0x11AA2}, {0x11AB0, 0x11AF8}, {0x11B00, 0x11B09},
+    {0x11BC0, 0x11BE1}, {0x11BF0, 0x11BF9}, {0x11C00, 0x11C08}, {0x11C0A, 0x11C36},
     {0x11C38, 0x11C45}, {0x11C50, 0x11C6C}, {0x11C70, 0x11C8F}, {0x11C92, 0x11CA7},
     {0x11CA9, 0x11CB6}, {0x11D00, 0x11D06}, {0x11D0B, 0x11D36}, {0x11D3F, 0x11D47},
     {0x11D50, 0x11D59}, {0x11D60, 0x11D65}, {0x11D6A, 0x11D8E}, {0x11D93, 0x11D98},
     {0x11DA0, 0x11DA9}, {0x11EE0, 0x11EF8}, {0x11F00, 0x11F10}, {0x11F12, 0x11F3A},
-    {0x11F3E, 0x11F59}, {0x11FC0, 0x11FF1}, {0x11FFF, 0x12399}, {0x12400, 0x1246E},
+    {0x11F3E, 0x11F5A}, {0x11FC0, 0x11FF1}, {0x11FFF, 0x12399}, {0x12400, 0x1246E},
     {0x12470, 0x12474}, {0x12480, 0x12543}, {0x12F90, 0x12FF2}, {0x13000, 0x1342F},
-    {0x13440, 0x13455}, {0x14400, 0x14646}, {0x16800, 0x16A38}, {0x16A40, 0x16A5E},
-    {0x16A60, 0x16A69}, {0x16A6E, 0x16ABE}, {0x16AC0, 0x16AC9}, {0x16AD0, 0x16AED},
-    {0x16AF0, 0x16AF5}, {0x16B00, 0x16B45}, {0x16B50, 0x16B59}, {0x16B5B, 0x16B61},
-    {0x16B63, 0x16B77}, {0x16B7D, 0x16B8F}, {0x16E40, 0x16E9A}, {0x16F00, 0x16F4A},
-    {0x16F4F, 0x16F87}, {0x16F8F, 0x16F9F}, {0x16FE0, 0x16FE4}, {0x17000, 0x187F7},
-    {0x18800, 0x18CD5}, {0x18D00, 0x18D08}, {0x1AFF0, 0x1AFF3}, {0x1AFF5, 0x1AFFB},
-    {0x1B000, 0x1B122}, {0x1B150, 0x1B152}, {0x1B164, 0x1B167}, {0x1B170, 0x1B2FB},
-    {0x1BC00, 0x1BC6A}, {0x1BC70, 0x1BC7C}, {0x1BC80, 0x1BC88}, {0x1BC90, 0x1BC99},
-    {0x1BC9C, 0x1BC9F}, {0x1CF00, 0x1CF2D}, {0x1CF30, 0x1CF46}, {0x1CF50, 0x1CFC3},
-    {0x1D000, 0x1D0F5}, {0x1D100, 0x1D126}, {0x1D129, 0x1D172}, {0x1D17B, 0x1D1EA},
-    {0x1D200, 0x1D245}, {0x1D2C0, 0x1D2D3}, {0x1D2E0, 0x1D2F3}, {0x1D300, 0x1D356},
-    {0x1D360, 0x1D378}, {0x1D400, 0x1D454}, {0x1D456, 0x1D49C}, {0x1D4A9, 0x1D4AC},
-    {0x1D4AE, 0x1D4B9}, {0x1D4BD, 0x1D4C3}, {0x1D4C5, 0x1D505}, {0x1D507, 0x1D50A},
-    {0x1D50D, 0x1D514}, {0x1D516, 0x1D51C}, {0x1D51E, 0x1D539}, {0x1D53B, 0x1D53E},
-    {0x1D540, 0x1D544}, {0x1D54A, 0x1D550}, {0x1D552, 0x1D6A5}, {0x1D6A8, 0x1D7CB},
-    {0x1D7CE, 0x1DA8B}, {0x1DA9B, 0x1DA9F}, {0x1DAA1, 0x1DAAF}, {0x1DF00, 0x1DF1E},
-    {0x1DF25, 0x1DF2A}, {0x1E000, 0x1E006}, {0x1E008, 0x1E018}, {0x1E01B, 0x1E021},
-    {0x1E026, 0x1E02A}, {0x1E030, 0x1E06D}, {0x1E100, 0x1E12C}, {0x1E130, 0x1E13D},
-    {0x1E140, 0x1E149}, {0x1E290, 0x1E2AE}, {0x1E2C0, 0x1E2F9}, {0x1E4D0, 0x1E4F9},
-    {0x1E7E0, 0x1E7E6}, {0x1E7E8, 0x1E7EB}, {0x1E7F0, 0x1E7FE}, {0x1E800, 0x1E8C4},
-    {0x1E8C7, 0x1E8D6}, {0x1E900, 0x1E94B}, {0x1E950, 0x1E959}, {0x1EC71, 0x1ECB4},
-    {0x1ED01, 0x1ED3D}, {0x1EE00, 0x1EE03}, {0x1EE05, 0x1EE1F}, {0x1EE29, 0x1EE32},
-    {0x1EE34, 0x1EE37}, {0x1EE4D, 0x1EE4F}, {0x1EE67, 0x1EE6A}, {0x1EE6C, 0x1EE72},
-    {0x1EE74, 0x1EE77}, {0x1EE79, 0x1EE7C}, {0x1EE80, 0x1EE89}, {0x1EE8B, 0x1EE9B},
-    {0x1EEA1, 0x1EEA3}, {0x1EEA5, 0x1EEA9}, {0x1EEAB, 0x1EEBB}, {0x1F000, 0x1F02B},
-    {0x1F030, 0x1F093}, {0x1F0A0, 0x1F0AE}, {0x1F0B1, 0x1F0BF}, {0x1F0C1, 0x1F0CF},
-    {0x1F0D1, 0x1F0F5}, {0x1F100, 0x1F1AD}, {0x1F1E6, 0x1F202}, {0x1F210, 0x1F23B},
-    {0x1F240, 0x1F248}, {0x1F260, 0x1F265}, {0x1F300, 0x1F6D7}, {0x1F6DC, 0x1F6EC},
-    {0x1F6F0, 0x1F6FC}, {0x1F700, 0x1F776}, {0x1F77B, 0x1F7D9}, {0x1F7E0, 0x1F7EB},
-    {0x1F800, 0x1F80B}, {0x1F810, 0x1F847}, {0x1F850, 0x1F859}, {0x1F860, 0x1F887},
-    {0x1F890, 0x1F8AD}, {0x1F900, 0x1FA53}, {0x1FA60, 0x1FA6D}, {0x1FA70, 0x1FA7C},
-    {0x1FA80, 0x1FA88}, {0x1FA90, 0x1FABD}, {0x1FABF, 0x1FAC5}, {0x1FACE, 0x1FADB},
-    {0x1FAE0, 0x1FAE8}, {0x1FAF0, 0x1FAF8}, {0x1FB00, 0x1FB92}, {0x1FB94, 0x1FBCA},
-    {0x1FBF0, 0x1FBF9}, {0x20000, 0x2A6DF}, {0x2A700, 0x2B739}, {0x2B740, 0x2B81D},
-    {0x2B820, 0x2CEA1}, {0x2CEB0, 0x2EBE0}, {0x2F800, 0x2FA1D}, {0x30000, 0x3134A},
-    {0x31350, 0x323AF}, {0xE0100, 0xE01EF}
+    {0x13440, 0x13455}, {0x13460, 0x143FA}, {0x14400, 0x14646}, {0x16100, 0x16139},
+    {0x16800, 0x16A38}, {0x16A40, 0x16A5E}, {0x16A60, 0x16A69}, {0x16A6E, 0x16ABE},
+    {0x16AC0, 0x16AC9}, {0x16AD0, 0x16AED}, {0x16AF0, 0x16AF5}, {0x16B00, 0x16B45},
+    {0x16B50, 0x16B59}, {0x16B5B, 0x16B61}, {0x16B63, 0x16B77}, {0x16B7D, 0x16B8F},
+    {0x16D40, 0x16D79}, {0x16E40, 0x16E9A}, {0x16F00, 0x16F4A}, {0x16F4F, 0x16F87},
+    {0x16F8F, 0x16F9F}, {0x16FE0, 0x16FE4}, {0x17000, 0x187F7}, {0x18800, 0x18CD5},
+    {0x18CFF, 0x18D08}, {0x1AFF0, 0x1AFF3}, {0x1AFF5, 0x1AFFB}, {0x1B000, 0x1B122},
+    {0x1B150, 0x1B152}, {0x1B164, 0x1B167}, {0x1B170, 0x1B2FB}, {0x1BC00, 0x1BC6A},
+    {0x1BC70, 0x1BC7C}, {0x1BC80, 0x1BC88}, {0x1BC90, 0x1BC99}, {0x1BC9C, 0x1BC9F},
+    {0x1CC00, 0x1CCF9}, {0x1CD00, 0x1CEB3}, {0x1CF00, 0x1CF2D}, {0x1CF30, 0x1CF46},
+    {0x1CF50, 0x1CFC3}, {0x1D000, 0x1D0F5}, {0x1D100, 0x1D126}, {0x1D129, 0x1D172},
+    {0x1D17B, 0x1D1EA}, {0x1D200, 0x1D245}, {0x1D2C0, 0x1D2D3}, {0x1D2E0, 0x1D2F3},
+    {0x1D300, 0x1D356}, {0x1D360, 0x1D378}, {0x1D400, 0x1D454}, {0x1D456, 0x1D49C},
+    {0x1D4A9, 0x1D4AC}, {0x1D4AE, 0x1D4B9}, {0x1D4BD, 0x1D4C3}, {0x1D4C5, 0x1D505},
+    {0x1D507, 0x1D50A}, {0x1D50D, 0x1D514}, {0x1D516, 0x1D51C}, {0x1D51E, 0x1D539},
+    {0x1D53B, 0x1D53E}, {0x1D540, 0x1D544}, {0x1D54A, 0x1D550}, {0x1D552, 0x1D6A5},
+    {0x1D6A8, 0x1D7CB}, {0x1D7CE, 0x1DA8B}, {0x1DA9B, 0x1DA9F}, {0x1DAA1, 0x1DAAF},
+    {0x1DF00, 0x1DF1E}, {0x1DF25, 0x1DF2A}, {0x1E000, 0x1E006}, {0x1E008, 0x1E018},
+    {0x1E01B, 0x1E021}, {0x1E026, 0x1E02A}, {0x1E030, 0x1E06D}, {0x1E100, 0x1E12C},
+    {0x1E130, 0x1E13D}, {0x1E140, 0x1E149}, {0x1E290, 0x1E2AE}, {0x1E2C0, 0x1E2F9},
+    {0x1E4D0, 0x1E4F9}, {0x1E5D0, 0x1E5FA}, {0x1E7E0, 0x1E7E6}, {0x1E7E8, 0x1E7EB},
+    {0x1E7F0, 0x1E7FE}, {0x1E800, 0x1E8C4}, {0x1E8C7, 0x1E8D6}, {0x1E900, 0x1E94B},
+    {0x1E950, 0x1E959}, {0x1EC71, 0x1ECB4}, {0x1ED01, 0x1ED3D}, {0x1EE00, 0x1EE03},
+    {0x1EE05, 0x1EE1F}, {0x1EE29, 0x1EE32}, {0x1EE34, 0x1EE37}, {0x1EE4D, 0x1EE4F},
+    {0x1EE67, 0x1EE6A}, {0x1EE6C, 0x1EE72}, {0x1EE74, 0x1EE77}, {0x1EE79, 0x1EE7C},
+    {0x1EE80, 0x1EE89}, {0x1EE8B, 0x1EE9B}, {0x1EEA1, 0x1EEA3}, {0x1EEA5, 0x1EEA9},
+    {0x1EEAB, 0x1EEBB}, {0x1F000, 0x1F02B}, {0x1F030, 0x1F093}, {0x1F0A0, 0x1F0AE},
+    {0x1F0B1, 0x1F0BF}, {0x1F0C1, 0x1F0CF}, {0x1F0D1, 0x1F0F5}, {0x1F100, 0x1F1AD},
+    {0x1F1E6, 0x1F202}, {0x1F210, 0x1F23B}, {0x1F240, 0x1F248}, {0x1F260, 0x1F265},
+    {0x1F300, 0x1F6D7}, {0x1F6DC, 0x1F6EC}, {0x1F6F0, 0x1F6FC}, {0x1F700, 0x1F776},
+    {0x1F77B, 0x1F7D9}, {0x1F7E0, 0x1F7EB}, {0x1F800, 0x1F80B}, {0x1F810, 0x1F847},
+    {0x1F850, 0x1F859}, {0x1F860, 0x1F887}, {0x1F890, 0x1F8AD}, {0x1F8B0, 0x1F8BB},
+    {0x1F900, 0x1FA53}, {0x1FA60, 0x1FA6D}, {0x1FA70, 0x1FA7C}, {0x1FA80, 0x1FA89},
+    {0x1FA8F, 0x1FAC6}, {0x1FACE, 0x1FADC}, {0x1FADF, 0x1FAE9}, {0x1FAF0, 0x1FAF8},
+    {0x1FB00, 0x1FB92}, {0x1FB94, 0x1FBF9}, {0x20000, 0x2A6DF}, {0x2A700, 0x2B739},
+    {0x2B740, 0x2B81D}, {0x2B820, 0x2CEA1}, {0x2CEB0, 0x2EBE0}, {0x2EBF0, 0x2EE5D},
+    {0x2F800, 0x2FA1D}, {0x30000, 0x3134A}, {0x31350, 0x323AF}, {0xE0100, 0xE01EF}
 #endif
 };
 
-#define NUM_GRAPH_RANGE (sizeof(graphRangeTable)/sizeof(crange))
+#define NUM_GRAPH_RANGE ((int)(sizeof(graphRangeTable)/sizeof(crange)))
 
 static const chr graphCharTable[] = {
     0x38C, 0x85E, 0x98F, 0x990, 0x9B2, 0x9C7, 0x9C8, 0x9D7, 0x9DC,
@@ -808,26 +817,25 @@ static const chr graphCharTable[] = {
     0xFB41, 0xFB43, 0xFB44, 0xFDCF, 0xFFFC, 0xFFFD
 #if CHRBITS > 16
     ,0x1003C, 0x1003D, 0x101A0, 0x10594, 0x10595, 0x105BB, 0x105BC, 0x10808, 0x10837,
-    0x10838, 0x1083C, 0x108F4, 0x108F5, 0x1093F, 0x10A05, 0x10A06, 0x10EB0, 0x10EB1,
-    0x11288, 0x1130F, 0x11310, 0x11332, 0x11333, 0x11347, 0x11348, 0x11350, 0x11357,
-    0x11909, 0x11915, 0x11916, 0x11937, 0x11938, 0x11D08, 0x11D09, 0x11D3A, 0x11D3C,
-    0x11D3D, 0x11D67, 0x11D68, 0x11D90, 0x11D91, 0x11FB0, 0x16FF0, 0x16FF1, 0x1AFFD,
-    0x1AFFE, 0x1B132, 0x1B155, 0x1D49E, 0x1D49F, 0x1D4A2, 0x1D4A5, 0x1D4A6, 0x1D4BB,
-    0x1D546, 0x1E023, 0x1E024, 0x1E08F, 0x1E14E, 0x1E14F, 0x1E2FF, 0x1E7ED, 0x1E7EE,
-    0x1E95E, 0x1E95F, 0x1EE21, 0x1EE22, 0x1EE24, 0x1EE27, 0x1EE39, 0x1EE3B, 0x1EE42,
-    0x1EE47, 0x1EE49, 0x1EE4B, 0x1EE51, 0x1EE52, 0x1EE54, 0x1EE57, 0x1EE59, 0x1EE5B,
-    0x1EE5D, 0x1EE5F, 0x1EE61, 0x1EE62, 0x1EE64, 0x1EE7E, 0x1EEF0, 0x1EEF1, 0x1F250,
-    0x1F251, 0x1F7F0, 0x1F8B0, 0x1F8B1
+    0x10838, 0x1083C, 0x108F4, 0x108F5, 0x1093F, 0x10A05, 0x10A06, 0x10D8E, 0x10D8F,
+    0x10EB0, 0x10EB1, 0x11288, 0x1130F, 0x11310, 0x11332, 0x11333, 0x11347, 0x11348,
+    0x11350, 0x11357, 0x1138B, 0x1138E, 0x113C2, 0x113C5, 0x113D7, 0x113D8, 0x113E1,
+    0x113E2, 0x11909, 0x11915, 0x11916, 0x11937, 0x11938, 0x11D08, 0x11D09, 0x11D3A,
+    0x11D3C, 0x11D3D, 0x11D67, 0x11D68, 0x11D90, 0x11D91, 0x11FB0, 0x16FF0, 0x16FF1,
+    0x1AFFD, 0x1AFFE, 0x1B132, 0x1B155, 0x1D49E, 0x1D49F, 0x1D4A2, 0x1D4A5, 0x1D4A6,
+    0x1D4BB, 0x1D546, 0x1E023, 0x1E024, 0x1E08F, 0x1E14E, 0x1E14F, 0x1E2FF, 0x1E5FF,
+    0x1E7ED, 0x1E7EE, 0x1E95E, 0x1E95F, 0x1EE21, 0x1EE22, 0x1EE24, 0x1EE27, 0x1EE39,
+    0x1EE3B, 0x1EE42, 0x1EE47, 0x1EE49, 0x1EE4B, 0x1EE51, 0x1EE52, 0x1EE54, 0x1EE57,
+    0x1EE59, 0x1EE5B, 0x1EE5D, 0x1EE5F, 0x1EE61, 0x1EE62, 0x1EE64, 0x1EE7E, 0x1EEF0,
+    0x1EEF1, 0x1F250, 0x1F251, 0x1F7F0, 0x1F8C0, 0x1F8C1
 #endif
 };
 
-#define NUM_GRAPH_CHAR (sizeof(graphCharTable)/sizeof(chr))
+#define NUM_GRAPH_CHAR ((int)(sizeof(graphCharTable)/sizeof(chr)))
 
 /*
  *	End of auto-generated Unicode character ranges declarations.
  */
-
-#define	CH	NOCELT
 
 /*
  - element - map collating-element name to celt
@@ -861,7 +869,7 @@ element(
      */
 
     Tcl_DStringInit(&ds);
-    np = Tcl_UniCharToUtfDString(startp, (int)len, &ds);
+    np = Tcl_UniCharToUtfDString(startp, len, &ds);
     for (cn=cnames; cn->name!=NULL; cn++) {
 	if (strlen(cn->name)==len && strncmp(cn->name, np, len)==0) {
 	    break;			/* NOTE BREAK OUT */
@@ -920,9 +928,9 @@ range(
 
     for (c=a; c<=b; c++) {
 	addchr(cv, c);
-	lc = Tcl_UniCharToLower((chr)c);
-	uc = Tcl_UniCharToUpper((chr)c);
-	tc = Tcl_UniCharToTitle((chr)c);
+	lc = Tcl_UniCharToLower(c);
+	uc = Tcl_UniCharToUpper(c);
+	tc = Tcl_UniCharToTitle(c);
 	if (c != lc) {
 	    addchr(cv, lc);
 	}
@@ -971,11 +979,11 @@ eclass(
 
     if ((v->cflags&REG_FAKE) && c == 'x') {
 	cv = getcvec(v, 4, 0);
-	addchr(cv, (chr)'x');
-	addchr(cv, (chr)'y');
+	addchr(cv, 'x');
+	addchr(cv, 'y');
 	if (cases) {
-	    addchr(cv, (chr)'X');
-	    addchr(cv, (chr)'Y');
+	    addchr(cv, 'X');
+	    addchr(cv, 'Y');
 	}
 	return cv;
     }
@@ -989,7 +997,7 @@ eclass(
     }
     cv = getcvec(v, 1, 0);
     assert(cv != NULL);
-    addchr(cv, (chr)c);
+    addchr(cv, c);
     return cv;
 }
 
@@ -1010,7 +1018,7 @@ cclass(
     Tcl_DString ds;
     const char *np;
     const char *const *namePtr;
-    int i, index;
+    int i;
 
     /*
      * The following arrays define the valid character class names.
@@ -1022,9 +1030,10 @@ cclass(
     };
 
     enum classes {
+	CC_NULL = -1,
 	CC_ALNUM, CC_ALPHA, CC_ASCII, CC_BLANK, CC_CNTRL, CC_DIGIT, CC_GRAPH,
 	CC_LOWER, CC_PRINT, CC_PUNCT, CC_SPACE, CC_UPPER, CC_XDIGIT
-    };
+    } index;
 
 
     /*
@@ -1033,24 +1042,20 @@ cclass(
 
     len = endp - startp;
     Tcl_DStringInit(&ds);
-    np = Tcl_UniCharToUtfDString(startp, (int)len, &ds);
+    np = Tcl_UniCharToUtfDString(startp, len, &ds);
 
     /*
      * Map the name to the corresponding enumerated value.
      */
 
-    index = -1;
+    index = CC_NULL;
     for (namePtr=classNames,i=0 ; *namePtr!=NULL ; namePtr++,i++) {
 	if ((strlen(*namePtr) == len) && (strncmp(*namePtr, np, len) == 0)) {
-	    index = i;
+	    index = (enum classes)i;
 	    break;
 	}
     }
     Tcl_DStringFree(&ds);
-    if (index == -1) {
-	ERR(REG_ECTYPE);
-	return NULL;
-    }
 
     /*
      * Remap lower and upper to alpha if the match is case insensitive.
@@ -1064,18 +1069,21 @@ cclass(
      * Now compute the character class contents.
      */
 
-    switch((enum classes) index) {
+    switch (index) {
+    case CC_NULL:
+	ERR(REG_ECTYPE);
+	return NULL;
     case CC_ALNUM:
 	cv = getcvec(v, NUM_ALPHA_CHAR, NUM_DIGIT_RANGE + NUM_ALPHA_RANGE);
 	if (cv) {
-	    for (i=0 ; (size_t)i<NUM_ALPHA_CHAR ; i++) {
+	    for (i=0 ; i<NUM_ALPHA_CHAR ; i++) {
 		addchr(cv, alphaCharTable[i]);
 	    }
-	    for (i=0 ; (size_t)i<NUM_ALPHA_RANGE ; i++) {
+	    for (i=0 ; i<NUM_ALPHA_RANGE ; i++) {
 		addrange(cv, alphaRangeTable[i].start,
 			alphaRangeTable[i].end);
 	    }
-	    for (i=0 ; (size_t)i<NUM_DIGIT_RANGE ; i++) {
+	    for (i=0 ; i<NUM_DIGIT_RANGE ; i++) {
 		addrange(cv, digitRangeTable[i].start,
 			digitRangeTable[i].end);
 	    }
@@ -1084,11 +1092,11 @@ cclass(
     case CC_ALPHA:
 	cv = getcvec(v, NUM_ALPHA_CHAR, NUM_ALPHA_RANGE);
 	if (cv) {
-	    for (i=0 ; (size_t)i<NUM_ALPHA_RANGE ; i++) {
+	    for (i=0 ; i<NUM_ALPHA_RANGE ; i++) {
 		addrange(cv, alphaRangeTable[i].start,
 			alphaRangeTable[i].end);
 	    }
-	    for (i=0 ; (size_t)i<NUM_ALPHA_CHAR ; i++) {
+	    for (i=0 ; i<NUM_ALPHA_CHAR ; i++) {
 		addchr(cv, alphaCharTable[i]);
 	    }
 	}
@@ -1107,11 +1115,11 @@ cclass(
     case CC_CNTRL:
 	cv = getcvec(v, NUM_CONTROL_CHAR, NUM_CONTROL_RANGE);
 	if (cv) {
-	    for (i=0 ; (size_t)i<NUM_CONTROL_RANGE ; i++) {
+	    for (i=0 ; i<NUM_CONTROL_RANGE ; i++) {
 		addrange(cv, controlRangeTable[i].start,
 			controlRangeTable[i].end);
 	    }
-	    for (i=0 ; (size_t)i<NUM_CONTROL_CHAR ; i++) {
+	    for (i=0 ; i<NUM_CONTROL_CHAR ; i++) {
 		addchr(cv, controlCharTable[i]);
 	    }
 	}
@@ -1119,7 +1127,7 @@ cclass(
     case CC_DIGIT:
 	cv = getcvec(v, 0, NUM_DIGIT_RANGE);
 	if (cv) {
-	    for (i=0 ; (size_t)i<NUM_DIGIT_RANGE ; i++) {
+	    for (i=0 ; i<NUM_DIGIT_RANGE ; i++) {
 		addrange(cv, digitRangeTable[i].start,
 			digitRangeTable[i].end);
 	    }
@@ -1128,11 +1136,11 @@ cclass(
     case CC_PUNCT:
 	cv = getcvec(v, NUM_PUNCT_CHAR, NUM_PUNCT_RANGE);
 	if (cv) {
-	    for (i=0 ; (size_t)i<NUM_PUNCT_RANGE ; i++) {
+	    for (i=0 ; i<NUM_PUNCT_RANGE ; i++) {
 		addrange(cv, punctRangeTable[i].start,
 			punctRangeTable[i].end);
 	    }
-	    for (i=0 ; (size_t)i<NUM_PUNCT_CHAR ; i++) {
+	    for (i=0 ; i<NUM_PUNCT_CHAR ; i++) {
 		addchr(cv, punctCharTable[i]);
 	    }
 	}
@@ -1157,11 +1165,11 @@ cclass(
     case CC_SPACE:
 	cv = getcvec(v, NUM_SPACE_CHAR, NUM_SPACE_RANGE);
 	if (cv) {
-	    for (i=0 ; (size_t)i<NUM_SPACE_RANGE ; i++) {
+	    for (i=0 ; i<NUM_SPACE_RANGE ; i++) {
 		addrange(cv, spaceRangeTable[i].start,
 			spaceRangeTable[i].end);
 	    }
-	    for (i=0 ; (size_t)i<NUM_SPACE_CHAR ; i++) {
+	    for (i=0 ; i<NUM_SPACE_CHAR ; i++) {
 		addchr(cv, spaceCharTable[i]);
 	    }
 	}
@@ -1169,11 +1177,11 @@ cclass(
     case CC_LOWER:
 	cv  = getcvec(v, NUM_LOWER_CHAR, NUM_LOWER_RANGE);
 	if (cv) {
-	    for (i=0 ; (size_t)i<NUM_LOWER_RANGE ; i++) {
+	    for (i=0 ; i<NUM_LOWER_RANGE ; i++) {
 		addrange(cv, lowerRangeTable[i].start,
 			lowerRangeTable[i].end);
 	    }
-	    for (i=0 ; (size_t)i<NUM_LOWER_CHAR ; i++) {
+	    for (i=0 ; i<NUM_LOWER_CHAR ; i++) {
 		addchr(cv, lowerCharTable[i]);
 	    }
 	}
@@ -1181,42 +1189,42 @@ cclass(
     case CC_UPPER:
 	cv  = getcvec(v, NUM_UPPER_CHAR, NUM_UPPER_RANGE);
 	if (cv) {
-	    for (i=0 ; (size_t)i<NUM_UPPER_RANGE ; i++) {
+	    for (i=0 ; i<NUM_UPPER_RANGE ; i++) {
 		addrange(cv, upperRangeTable[i].start,
 			upperRangeTable[i].end);
 	    }
-	    for (i=0 ; (size_t)i<NUM_UPPER_CHAR ; i++) {
+	    for (i=0 ; i<NUM_UPPER_CHAR ; i++) {
 		addchr(cv, upperCharTable[i]);
 	    }
 	}
 	break;
     case CC_PRINT:
-    	cv  = getcvec(v, NUM_SPACE_CHAR + NUM_GRAPH_CHAR, NUM_SPACE_RANGE + NUM_GRAPH_RANGE  - 1);
-    	if (cv) {
-    	    for (i=1 ; (size_t)i<NUM_SPACE_RANGE ; i++) {
-    		addrange(cv, spaceRangeTable[i].start,
-    				spaceRangeTable[i].end);
-    	    }
-    	    for (i=0 ; (size_t)i<NUM_SPACE_CHAR ; i++) {
-    		addchr(cv, spaceCharTable[i]);
-    	    }
-    	    for (i=0 ; (size_t)i<NUM_GRAPH_RANGE ; i++) {
-    		addrange(cv, graphRangeTable[i].start,
-    				graphRangeTable[i].end);
-    	    }
-    	    for (i=0 ; (size_t)i<NUM_GRAPH_CHAR ; i++) {
-    		addchr(cv, graphCharTable[i]);
-    	    }
-    	}
-    	break;
+	cv  = getcvec(v, NUM_SPACE_CHAR + NUM_GRAPH_CHAR, NUM_SPACE_RANGE + NUM_GRAPH_RANGE  - 1);
+	if (cv) {
+	    for (i=1 ; i<NUM_SPACE_RANGE ; i++) {
+		addrange(cv, spaceRangeTable[i].start,
+				spaceRangeTable[i].end);
+	    }
+	    for (i=0 ; i<NUM_SPACE_CHAR ; i++) {
+		addchr(cv, spaceCharTable[i]);
+	    }
+	    for (i=0 ; i<NUM_GRAPH_RANGE ; i++) {
+		addrange(cv, graphRangeTable[i].start,
+				graphRangeTable[i].end);
+	    }
+	    for (i=0 ; i<NUM_GRAPH_CHAR ; i++) {
+		addchr(cv, graphCharTable[i]);
+	    }
+	}
+	break;
     case CC_GRAPH:
 	cv  = getcvec(v, NUM_GRAPH_CHAR, NUM_GRAPH_RANGE);
 	if (cv) {
-	    for (i=0 ; (size_t)i<NUM_GRAPH_RANGE ; i++) {
+	    for (i=0 ; i<NUM_GRAPH_RANGE ; i++) {
 		addrange(cv, graphRangeTable[i].start,
 			graphRangeTable[i].end);
 	    }
-	    for (i=0 ; (size_t)i<NUM_GRAPH_CHAR ; i++) {
+	    for (i=0 ; i<NUM_GRAPH_CHAR ; i++) {
 		addchr(cv, graphCharTable[i]);
 	    }
 	}
@@ -1243,9 +1251,9 @@ allcases(
     chr c = (chr)pc;
     chr lc, uc, tc;
 
-    lc = Tcl_UniCharToLower((chr)c);
-    uc = Tcl_UniCharToUpper((chr)c);
-    tc = Tcl_UniCharToTitle((chr)c);
+    lc = Tcl_UniCharToLower(c);
+    uc = Tcl_UniCharToUpper(c);
+    tc = Tcl_UniCharToTitle(c);
 
     if (tc != uc) {
 	cv = getcvec(v, 3, 0);
@@ -1273,7 +1281,7 @@ cmp(
     const chr *x, const chr *y,	/* strings to compare */
     size_t len)			/* exact length of comparison */
 {
-    return memcmp(VS(x), VS(y), len*sizeof(chr));
+    return memcmp((void*)(x), (void*)(y), len*sizeof(chr));
 }
 
 /*
diff --git a/generic/regc_nfa.c b/generic/regc_nfa.c
index d155b23..abeb359 100644
--- a/generic/regc_nfa.c
+++ b/generic/regc_nfa.c
@@ -2,7 +2,7 @@
  * NFA utilities.
  * This file is #included by regcomp.c.
  *
- * Copyright (c) 1998, 1999 Henry Spencer. All rights reserved.
+ * Copyright © 1998, 1999 Henry Spencer. All rights reserved.
  *
  * Development of this software was funded, in part, by Cray Research Inc.,
  * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
@@ -62,7 +62,6 @@ newnfa(
     nfa->nstates = 0;
     nfa->cm = cm;
     nfa->v = v;
-    nfa->size = 0;
     nfa->bos[0] = nfa->bos[1] = COLORLESS;
     nfa->eos[0] = nfa->eos[1] = COLORLESS;
     nfa->parent = parent;	/* Precedes newfstate so parent is valid. */
@@ -90,63 +89,8 @@ newnfa(
 }
 
 /*
- - TooManyStates - checks if the max states exceeds the compile-time value
- ^ static int TooManyStates(struct nfa *);
- */
-static int
-TooManyStates(
-    struct nfa *nfa)
-{
-    struct nfa *parent = nfa->parent;
-    size_t sz = nfa->size;
-
-    while (parent != NULL) {
-	sz = parent->size;
-	parent = parent->parent;
-    }
-    if (sz > REG_MAX_STATES) {
-	return 1;
-    }
-    return 0;
-}
-
-/*
- - IncrementSize - increases the tracked size of the NFA and its parents.
- ^ static void IncrementSize(struct nfa *);
- */
-static void
-IncrementSize(
-    struct nfa *nfa)
-{
-    struct nfa *parent = nfa->parent;
-
-    nfa->size++;
-    while (parent != NULL) {
-	parent->size++;
-	parent = parent->parent;
-    }
-}
-
-/*
- - DecrementSize - increases the tracked size of the NFA and its parents.
- ^ static void DecrementSize(struct nfa *);
- */
-static void
-DecrementSize(
-    struct nfa *nfa)
-{
-    struct nfa *parent = nfa->parent;
-
-    nfa->size--;
-    while (parent != NULL) {
-	parent->size--;
-	parent = parent->parent;
-    }
-}
-
-/*
  - freenfa - free an entire NFA
- ^ static VOID freenfa(struct nfa *);
+ ^ static void freenfa(struct nfa *);
  */
 static void
 freenfa(
@@ -164,7 +108,7 @@ freenfa(
     }
 
     nfa->slast = NULL;
-    nfa->nstates = -1;
+    nfa->nstates = FREESTATE;
     nfa->pre = NULL;
     nfa->post = NULL;
     FREE(nfa);
@@ -180,26 +124,26 @@ newstate(
 {
     struct state *s;
 
-    if (TooManyStates(nfa)) {
-	/* XXX: add specific error for this */
-	NERR(REG_ETOOBIG);
-	return NULL;
-    }
     if (nfa->free != NULL) {
 	s = nfa->free;
 	nfa->free = s->next;
     } else {
+	if (nfa->v->spaceused >= REG_MAX_COMPILE_SPACE) {
+	    NERR(REG_ETOOBIG);
+	    return NULL;
+	}
 	s = (struct state *) MALLOC(sizeof(struct state));
 	if (s == NULL) {
 	    NERR(REG_ESPACE);
 	    return NULL;
 	}
+	nfa->v->spaceused += sizeof(struct state);
 	s->oas.next = NULL;
 	s->free = NULL;
 	s->noas = 0;
     }
 
-    assert(nfa->nstates >= 0);
+    assert(nfa->nstates != FREESTATE);
     s->no = nfa->nstates++;
     s->flag = 0;
     if (nfa->states == NULL) {
@@ -217,12 +161,6 @@ newstate(
     }
     s->prev = nfa->slast;
     nfa->slast = s;
-
-    /*
-     * Track the current size and the parent size.
-     */
-
-    IncrementSize(nfa);
     return s;
 }
 
@@ -246,7 +184,7 @@ newfstate(
 
 /*
  - dropstate - delete a state's inarcs and outarcs and free it
- ^ static VOID dropstate(struct nfa *, struct state *);
+ ^ static void dropstate(struct nfa *, struct state *);
  */
 static void
 dropstate(
@@ -266,7 +204,7 @@ dropstate(
 
 /*
  - freestate - free a state, which has no in-arcs or out-arcs
- ^ static VOID freestate(struct nfa *, struct state *);
+ ^ static void freestate(struct nfa *, struct state *);
  */
 static void
 freestate(
@@ -293,12 +231,11 @@ freestate(
     s->prev = NULL;
     s->next = nfa->free;	/* don't delete it, put it on the free list */
     nfa->free = s;
-    DecrementSize(nfa);
 }
 
 /*
  - destroystate - really get rid of an already-freed state
- ^ static VOID destroystate(struct nfa *, struct state *);
+ ^ static void destroystate(struct nfa *, struct state *);
  */
 static void
 destroystate(
@@ -312,16 +249,18 @@ destroystate(
     for (ab=s->oas.next ; ab!=NULL ; ab=abnext) {
 	abnext = ab->next;
 	FREE(ab);
+	nfa->v->spaceused -= sizeof(struct arcbatch);
     }
     s->ins = NULL;
     s->outs = NULL;
     s->next = NULL;
     FREE(s);
+    nfa->v->spaceused -= sizeof(struct state);
 }
 
 /*
  - newarc - set up a new arc within an NFA
- ^ static VOID newarc(struct nfa *, int, pcolor, struct state *,
+ ^ static void newarc(struct nfa *, int, pcolor, struct state *,
  ^	struct state *);
  */
 /*
@@ -354,7 +293,7 @@ newarc(
 	    }
 	}
     }
-  
+
     /* no dup, so create the arc */
     createarc(nfa, t, co, from, to);
 }
@@ -439,14 +378,19 @@ allocarc(
      */
 
     if (s->free == NULL) {
-	struct arcbatch *newAb = (struct arcbatch *)
-		MALLOC(sizeof(struct arcbatch));
+	struct arcbatch *newAb;
 	int i;
 
+	if (nfa->v->spaceused >= REG_MAX_COMPILE_SPACE) {
+	    NERR(REG_ETOOBIG);
+	    return NULL;
+	}
+	newAb = (struct arcbatch *) MALLOC(sizeof(struct arcbatch));
 	if (newAb == NULL) {
 	    NERR(REG_ESPACE);
 	    return NULL;
 	}
+	nfa->v->spaceused += sizeof(struct arcbatch);
 	newAb->next = s->oas.next;
 	s->oas.next = newAb;
 
@@ -466,7 +410,7 @@ allocarc(
 
 /*
  - freearc - free an arc
- ^ static VOID freearc(struct nfa *, struct arc *);
+ ^ static void freearc(struct nfa *, struct arc *);
  */
 static void
 freearc(
@@ -543,7 +487,7 @@ freearc(
 /*
  * changearctarget - flip an arc to have a different to state
  *
- * Caller must have verified that there is no pre-existing duplicate arc.
+ * Caller must have verified that there is no preexisting duplicate arc.
  *
  * Note that because we store arcs in their from state, we can't easily have
  * a similar changearcsource function.
@@ -625,8 +569,8 @@ findarc(
 
 /*
  - cparc - allocate a new arc within an NFA, copying details from old one
- ^ static VOID cparc(struct nfa *, struct arc *, struct state *,
- ^ 	struct state *);
+ ^ static void cparc(struct nfa *, struct arc *, struct state *,
+ ^	struct state *);
  */
 static void
 cparc(
@@ -697,23 +641,23 @@ sortins_cmp(
 	return -1;
     }
     if (aa->from->no > bb->from->no) {
- 	return 1;
+	return 1;
     }
     if (aa->co < bb->co) {
- 	return -1;
+	return -1;
     }
     if (aa->co > bb->co) {
- 	return 1;
+	return 1;
     }
     if (aa->type < bb->type) {
- 	return -1;
+	return -1;
     }
     if (aa->type > bb->type) {
- 	return 1;
+	return 1;
     }
     return 0;
 }
- 
+
 /*
  * sortouts - sort the out arcs of a state by to/color/type
  */
@@ -812,7 +756,7 @@ sortouts_cmp(
  * checks become too slow.  In that case we proceed by sorting and merging
  * the arc lists, and then we can indeed just update the arcs in-place.
  *
- ^ static VOID moveins(struct nfa *, struct state *, struct state *);
+ ^ static void moveins(struct nfa *, struct state *, struct state *);
  */
 static void
 moveins(
@@ -899,7 +843,7 @@ moveins(
 
 /*
  - copyins - copy in arcs of a state to another state
- ^ static VOID copyins(struct nfa *, struct state *, struct state *, int);
+ ^ static void copyins(struct nfa *, struct state *, struct state *, int);
  */
 static void
 copyins(
@@ -1072,7 +1016,7 @@ mergeins(
 
 /*
  - moveouts - move all out arcs of a state to another state
- ^ static VOID moveouts(struct nfa *, struct state *, struct state *);
+ ^ static void moveouts(struct nfa *, struct state *, struct state *);
  */
 static void
 moveouts(
@@ -1156,7 +1100,7 @@ moveouts(
 
 /*
  - copyouts - copy out arcs of a state to another state
- ^ static VOID copyouts(struct nfa *, struct state *, struct state *, int);
+ ^ static void copyouts(struct nfa *, struct state *, struct state *, int);
  */
 static void
 copyouts(
@@ -1174,7 +1118,7 @@ copyouts(
 	    cparc(nfa, a, newState, a->to);
 	}
     } else {
- 	/*
+	/*
 	 * With many arcs, use a sort-merge approach.  Note that createarc()
 	 * will put new arcs onto the front of newState's chain, so it does
 	 * not break our walk through the sorted part of the chain.
@@ -1232,8 +1176,8 @@ copyouts(
 
 /*
  - cloneouts - copy out arcs of a state to another state pair, modifying type
- ^ static VOID cloneouts(struct nfa *, struct state *, struct state *,
- ^ 	struct state *, int);
+ ^ static void cloneouts(struct nfa *, struct state *, struct state *,
+ ^	struct state *, int);
  */
 static void
 cloneouts(
@@ -1256,7 +1200,7 @@ cloneouts(
  - delsub - delete a sub-NFA, updating subre pointers if necessary
  * This uses a recursive traversal of the sub-NFA, marking already-seen
  * states using their tmp pointer.
- ^ static VOID delsub(struct nfa *, struct state *, struct state *);
+ ^ static void delsub(struct nfa *, struct state *, struct state *);
  */
 static void
 delsub(
@@ -1279,7 +1223,7 @@ delsub(
 /*
  - deltraverse - the recursive heart of delsub
  * This routine's basic job is to destroy all out-arcs of the state.
- ^ static VOID deltraverse(struct nfa *, struct state *, struct state *);
+ ^ static void deltraverse(struct nfa *, struct state *, struct state *);
  */
 static void
 deltraverse(
@@ -1322,8 +1266,8 @@ deltraverse(
  * Another recursive traversal, this time using tmp to point to duplicates as
  * well as mark already-seen states. (You knew there was a reason why it's a
  * state pointer, didn't you? :-))
- ^ static VOID dupnfa(struct nfa *, struct state *, struct state *,
- ^ 	struct state *, struct state *);
+ ^ static void dupnfa(struct nfa *, struct state *, struct state *,
+ ^	struct state *, struct state *);
  */
 static void
 dupnfa(
@@ -1339,7 +1283,7 @@ dupnfa(
     }
 
     stop->tmp = to;
-    duptraverse(nfa, start, from);
+    duptraverse(nfa, start, from, 0);
     /* done, except for clearing out the tmp pointers */
 
     stop->tmp = NULL;
@@ -1348,13 +1292,14 @@ dupnfa(
 
 /*
  - duptraverse - recursive heart of dupnfa
- ^ static VOID duptraverse(struct nfa *, struct state *, struct state *);
+ ^ static void duptraverse(struct nfa *, struct state *, struct state *);
  */
 static void
 duptraverse(
     struct nfa *nfa,
     struct state *s,
-    struct state *stmp)		/* s's duplicate, or NULL */
+    struct state *stmp,		/* s's duplicate, or NULL */
+    int depth)
 {
     struct arc *a;
 
@@ -1368,8 +1313,20 @@ duptraverse(
 	return;
     }
 
+    /*
+     * Arbitrary depth limit. Needs tuning, but this value is sufficient to
+     * make all normal tests (not reg-33.14) pass.
+     */
+#ifndef DUPTRAVERSE_MAX_DEPTH
+#define DUPTRAVERSE_MAX_DEPTH 15000
+#endif
+
+    if (depth++ > DUPTRAVERSE_MAX_DEPTH) {
+	NERR(REG_ESPACE);
+    }
+
     for (a=s->outs ; a!=NULL && !NISERR() ; a=a->outchain) {
-	duptraverse(nfa, a->to, NULL);
+	duptraverse(nfa, a->to, NULL, depth);
 	if (NISERR()) {
 	    break;
 	}
@@ -1380,7 +1337,7 @@ duptraverse(
 
 /*
  - cleartraverse - recursive cleanup for algorithms that leave tmp ptrs set
- ^ static VOID cleartraverse(struct nfa *, struct state *);
+ ^ static void cleartraverse(struct nfa *, struct state *);
  */
 static void
 cleartraverse(
@@ -1401,7 +1358,7 @@ cleartraverse(
 
 /*
  - specialcolors - fill in special colors for an NFA
- ^ static VOID specialcolors(struct nfa *);
+ ^ static void specialcolors(struct nfa *);
  */
 static void
 specialcolors(
@@ -1484,7 +1441,7 @@ optimize(
 
 /*
  - pullback - pull back constraints backward to eliminate them
- ^ static VOID pullback(struct nfa *, FILE *);
+ ^ static void pullback(struct nfa *, FILE *);
  */
 static void
 pullback(
@@ -1558,7 +1515,7 @@ pullback(
  * Returns 1 if successful (which it always is unless the source is the
  * start state or we have an internal error), 0 if nothing happened.
  *
- * A significant property of this function is that it deletes no pre-existing
+ * A significant property of this function is that it deletes no preexisting
  * states, and no outarcs of the constraint's from state other than the given
  * constraint arc.  This makes the loops in pullback() safe, at the cost that
  * we may leave useless states behind.  Therefore, we leave it to pullback()
@@ -1642,10 +1599,10 @@ pull(
 		s->tmp = *intermediates;
 		*intermediates = s;
 	    }
-  	    cparc(nfa, con, a->from, s);
+	    cparc(nfa, con, a->from, s);
 	    cparc(nfa, a, s, to);
- 	    freearc(nfa, a);
-  	    break;
+	    freearc(nfa, a);
+	    break;
 	default:
 	    assert(NOTREACHED);
 	    break;
@@ -1664,7 +1621,7 @@ pull(
 
 /*
  - pushfwd - push forward constraints forward to eliminate them
- ^ static VOID pushfwd(struct nfa *, FILE *);
+ ^ static void pushfwd(struct nfa *, FILE *);
  */
 static void
 pushfwd(
@@ -1737,7 +1694,7 @@ pushfwd(
  * Returns 1 if successful (which it always is unless the destination is the
  * post state or we have an internal error), 0 if nothing happened.
  *
- * A significant property of this function is that it deletes no pre-existing
+ * A significant property of this function is that it deletes no preexisting
  * states, and no inarcs of the constraint's to state other than the given
  * constraint arc.  This makes the loops in pushfwd() safe, at the cost that
  * we may leave useless states behind.  Therefore, we leave it to pushfwd()
@@ -1822,9 +1779,9 @@ push(
 		*intermediates = s;
 	    }
 	    cparc(nfa, con, s, a->to);
-  	    cparc(nfa, a, from, s);
-  	    freearc(nfa, a);
-  	    break;
+	    cparc(nfa, a, from, s);
+	    freearc(nfa, a);
+	    break;
 	default:
 	    assert(NOTREACHED);
 	    break;
@@ -1903,7 +1860,7 @@ combine(
 
 /*
  - fixempties - get rid of EMPTY arcs
- ^ static VOID fixempties(struct nfa *, FILE *);
+ ^ static void fixempties(struct nfa *, FILE *);
  */
 static void
 fixempties(
@@ -2063,12 +2020,12 @@ fixempties(
 		    arcarray[arccount++] = a;
 		}
 	    }
-  
-  	    /* Reset the tmp fields as we walk back */
-  	    nexts = s2->tmp;
-  	    s2->tmp = NULL;
-  	}
-  	s->tmp = NULL;
+
+	    /* Reset the tmp fields as we walk back */
+	    nexts = s2->tmp;
+	    s2->tmp = NULL;
+	}
+	s->tmp = NULL;
 	assert(arccount <= totalinarcs);
 
 	/* Remember how many original inarcs this state has */
@@ -2085,7 +2042,7 @@ fixempties(
 	}
 	inarcsorig[s->no] = a;
     }
-  
+
     FREE(arcarray);
     FREE(inarcsorig);
 
@@ -2228,15 +2185,15 @@ fixconstraintloops(
 		    freearc(nfa, a);
 		} else {
 		    hasconstraints = 1;
- 		}
+		}
 	    }
 	}
- 	/* If we removed all the outarcs, the state is useless. */
- 	if (s->nouts == 0 && !s->flag) {
- 	    dropstate(nfa, s);
+	/* If we removed all the outarcs, the state is useless. */
+	if (s->nouts == 0 && !s->flag) {
+	    dropstate(nfa, s);
 	}
     }
- 
+
     /* Nothing to do if no remaining constraint arcs */
     if (NISERR() || !hasconstraints) {
 	return;
@@ -2278,7 +2235,7 @@ fixconstraintloops(
     }
 
     if (f != NULL) {
- 	dumpnfa(nfa, f);
+	dumpnfa(nfa, f);
     }
 }
 
@@ -2510,7 +2467,7 @@ breakconstraintloop(struct nfa * nfa, struct state * sinitial)
  * have multiple redundant arc pathways).  Each donemap is a char array
  * indexed by state number.  The donemaps are all of the same size "nstates",
  * which is nfa->nstates as of the start of the recursion.  This is enough to
- * have entries for all pre-existing states, but *not* entries for clone
+ * have entries for all preexisting states, but *not* entries for clone
  * states created during the recursion.  That's okay since we have no need to
  * mark those.
  *
@@ -2537,7 +2494,7 @@ clonesuccessorstates(
     struct arc * refarc,
     char *curdonemap,
     char *outerdonemap,
-    int nstates)
+    size_t nstates)
 {
     char *donemap;
     struct arc *a;
@@ -2726,7 +2683,7 @@ clonesuccessorstates(
 
 /*
  - cleanup - clean up NFA after optimizations
- ^ static VOID cleanup(struct nfa *);
+ ^ static void cleanup(struct nfa *);
  */
 static void
 cleanup(
@@ -2734,7 +2691,7 @@ cleanup(
 {
     struct state *s;
     struct state *nexts;
-    int n;
+    size_t n;
 
     /*
      * Clear out unreachable or dead-end states. Use pre to mark reachable,
@@ -2767,8 +2724,8 @@ cleanup(
 
 /*
  - markreachable - recursive marking of reachable states
- ^ static VOID markreachable(struct nfa *, struct state *, struct state *,
- ^ 	struct state *);
+ ^ static void markreachable(struct nfa *, struct state *, struct state *,
+ ^	struct state *);
  */
 static void
 markreachable(
@@ -2791,8 +2748,8 @@ markreachable(
 
 /*
  - markcanreach - recursive marking of states which can reach here
- ^ static VOID markcanreach(struct nfa *, struct state *, struct state *,
- ^ 	struct state *);
+ ^ static void markcanreach(struct nfa *, struct state *, struct state *,
+ ^	struct state *);
  */
 static void
 markcanreach(
@@ -2817,7 +2774,7 @@ markcanreach(
  - analyze - ascertain potentially-useful facts about an optimized NFA
  ^ static long analyze(struct nfa *);
  */
-static long			/* re_info bits to be ORed in */
+static long			/* re_info bits to be OR'ed in */
 analyze(
     struct nfa *nfa)
 {
@@ -2839,7 +2796,7 @@ analyze(
 
 /*
  - compact - construct the compact representation of an NFA
- ^ static VOID compact(struct nfa *, struct cnfa *);
+ ^ static void compact(struct nfa *, struct cnfa *);
  */
 static void
 compact(
@@ -2859,13 +2816,16 @@ compact(
     narcs = 0;
     for (s = nfa->states; s != NULL; s = s->next) {
 	nstates++;
-	narcs += 1 + s->nouts + 1;
-	/* 1 as a fake for flags, nouts for arcs, 1 as endmarker */
+	narcs += s->nouts + 1;	/* need one extra for endmarker */
     }
 
+    cnfa->stflags = (char *) MALLOC(nstates * sizeof(char));
     cnfa->states = (struct carc **) MALLOC(nstates * sizeof(struct carc *));
     cnfa->arcs = (struct carc *) MALLOC(narcs * sizeof(struct carc));
-    if (cnfa->states == NULL || cnfa->arcs == NULL) {
+    if (cnfa->stflags == NULL || cnfa->states == NULL || cnfa->arcs == NULL) {
+	if (cnfa->stflags != NULL) {
+	    FREE(cnfa->stflags);
+	}
 	if (cnfa->states != NULL) {
 	    FREE(cnfa->states);
 	}
@@ -2887,10 +2847,9 @@ compact(
 
     ca = cnfa->arcs;
     for (s = nfa->states; s != NULL; s = s->next) {
-	assert((size_t) s->no < nstates);
+	assert(s->no < nstates);
+	cnfa->stflags[s->no] = 0;
 	cnfa->states[s->no] = ca;
-	ca->co = 0;		/* clear and skip flags "arc" */
-	ca++;
 	first = ca;
 	for (a = s->outs; a != NULL; a = a->outchain) {
 	    switch (a->type) {
@@ -2924,14 +2883,14 @@ compact(
      */
 
     for (a = nfa->pre->outs; a != NULL; a = a->outchain) {
-	cnfa->states[a->to->no]->co = 1;
+	cnfa->stflags[a->to->no] = CNFA_NOPROGRESS;
     }
-    cnfa->states[nfa->pre->no]->co = 1;
+    cnfa->stflags[nfa->pre->no] = CNFA_NOPROGRESS;
 }
 
 /*
  - carcsort - sort compacted-NFA arcs by color
- ^ static VOID carcsort(struct carc *, struct carc *);
+ ^ static void carcsort(struct carc *, struct carc *);
  */
 static void
 carcsort(
@@ -2950,7 +2909,7 @@ carc_cmp(
 {
     const struct carc *aa = (const struct carc *) a;
     const struct carc *bb = (const struct carc *) b;
-  
+
     if (aa->co < bb->co) {
 	return -1;
     }
@@ -2968,7 +2927,7 @@ carc_cmp(
 
 /*
  - freecnfa - free a compacted NFA
- ^ static VOID freecnfa(struct cnfa *);
+ ^ static void freecnfa(struct cnfa *);
  */
 static void
 freecnfa(
@@ -2976,13 +2935,14 @@ freecnfa(
 {
     assert(cnfa->nstates != 0);	/* not empty already */
     cnfa->nstates = 0;
+    FREE(cnfa->stflags);
     FREE(cnfa->states);
     FREE(cnfa->arcs);
 }
 
 /*
  - dumpnfa - dump an NFA in human-readable form
- ^ static VOID dumpnfa(struct nfa *, FILE *);
+ ^ static void dumpnfa(struct nfa *, FILE *);
  */
 static void
 dumpnfa(
@@ -2991,10 +2951,10 @@ dumpnfa(
 {
 #ifdef REG_DEBUG
     struct state *s;
-    int nstates = 0;
-    int narcs = 0;
+    size_t nstates = 0;
+    size_t narcs = 0;
 
-    fprintf(f, "pre %d, post %d", nfa->pre->no, nfa->post->no);
+    fprintf(f, "pre %" TCL_Z_MODIFIER "u, post %" TCL_Z_MODIFIER "u", nfa->pre->no, nfa->post->no);
     if (nfa->bos[0] != COLORLESS) {
 	fprintf(f, ", bos [%ld]", (long) nfa->bos[0]);
     }
@@ -3013,11 +2973,14 @@ dumpnfa(
 	nstates++;
 	narcs += s->nouts;
     }
-    fprintf(f, "total of %d states, %d arcs\n", nstates, narcs);
+    fprintf(f, "total of %" TCL_Z_MODIFIER "u states, %" TCL_Z_MODIFIER "u arcs\n", nstates, narcs);
     if (nfa->parent == NULL) {
 	dumpcolors(nfa->cm, f);
     }
     fflush(f);
+#else
+    (void)nfa;
+    (void)f;
 #endif
 }
 
@@ -3028,7 +2991,7 @@ dumpnfa(
 
 /*
  - dumpstate - dump an NFA state in human-readable form
- ^ static VOID dumpstate(struct state *, FILE *);
+ ^ static void dumpstate(struct state *, FILE *);
  */
 static void
 dumpstate(
@@ -3037,7 +3000,7 @@ dumpstate(
 {
     struct arc *a;
 
-    fprintf(f, "%d%s%c", s->no, (s->tmp != NULL) ? "T" : "",
+    fprintf(f, "%" TCL_Z_MODIFIER "u%s%c", s->no, (s->tmp != NULL) ? "T" : "",
 	    (s->flag) ? s->flag : '.');
     if (s->prev != NULL && s->prev->next != s) {
 	fprintf(f, "\tstate chain bad\n");
@@ -3050,7 +3013,7 @@ dumpstate(
     fflush(f);
     for (a = s->ins; a != NULL; a = a->inchain) {
 	if (a->to != s) {
-	    fprintf(f, "\tlink from %d to %d on %d's in-chain\n",
+	    fprintf(f, "\tlink from %" TCL_Z_MODIFIER "u to %" TCL_Z_MODIFIER "u on %" TCL_Z_MODIFIER "u's in-chain\n",
 		    a->from->no, a->to->no, s->no);
 	}
     }
@@ -3058,7 +3021,7 @@ dumpstate(
 
 /*
  - dumparcs - dump out-arcs in human-readable form
- ^ static VOID dumparcs(struct state *, FILE *);
+ ^ static void dumparcs(struct state *, FILE *);
  */
 static void
 dumparcs(
@@ -3092,7 +3055,7 @@ dumparcs(
 
 /*
  - dumparc - dump one outarc in readable form, including prefixing tab
- ^ static VOID dumparc(struct arc *, struct state *, FILE *);
+ ^ static void dumparc(struct arc *, struct state *, FILE *);
  */
 static void
 dumparc(
@@ -3128,7 +3091,7 @@ dumparc(
 	break;
     }
     if (a->from != s) {
-	fprintf(f, "?%d?", a->from->no);
+	fprintf(f, "?%" TCL_Z_MODIFIER "u?", a->from->no);
     }
     for (ab = &a->from->oas; ab != NULL; ab = ab->next) {
 	for (aa = &ab->a[0]; aa < &ab->a[ABSIZE]; aa++) {
@@ -3148,7 +3111,7 @@ dumparc(
 	fprintf(f, "NULL");
 	return;
     }
-    fprintf(f, "%d", a->to->no);
+    fprintf(f, "%" TCL_Z_MODIFIER "u", a->to->no);
     for (aa = a->to->ins; aa != NULL; aa = aa->inchain) {
 	if (aa == a) {
 	    break;		/* NOTE BREAK OUT */
@@ -3166,7 +3129,7 @@ dumparc(
 
 /*
  - dumpcnfa - dump a compacted NFA in human-readable form
- ^ static VOID dumpcnfa(struct cnfa *, FILE *);
+ ^ static void dumpcnfa(struct cnfa *, FILE *);
  */
 static void
 dumpcnfa(
@@ -3174,9 +3137,9 @@ dumpcnfa(
     FILE *f)
 {
 #ifdef REG_DEBUG
-    int st;
+    size_t st;
 
-    fprintf(f, "pre %d, post %d", cnfa->pre, cnfa->post);
+    fprintf(f, "pre %" TCL_Z_MODIFIER "u, post %" TCL_Z_MODIFIER "u", cnfa->pre, cnfa->post);
     if (cnfa->bos[0] != COLORLESS) {
 	fprintf(f, ", bos [%ld]", (long) cnfa->bos[0]);
     }
@@ -3194,9 +3157,12 @@ dumpcnfa(
     }
     fprintf(f, "\n");
     for (st = 0; st < cnfa->nstates; st++) {
-	dumpcstate(st, cnfa->states[st], cnfa, f);
+	dumpcstate(st, cnfa, f);
     }
     fflush(f);
+#else
+    (void)cnfa;
+    (void)f;
 #endif
 }
 
@@ -3207,25 +3173,24 @@ dumpcnfa(
 
 /*
  - dumpcstate - dump a compacted-NFA state in human-readable form
- ^ static VOID dumpcstate(int, struct carc *, struct cnfa *, FILE *);
+ ^ static void dumpcstate(int, struct cnfa *, FILE *);
  */
 static void
 dumpcstate(
     int st,
-    struct carc *ca,
     struct cnfa *cnfa,
     FILE *f)
 {
-    int i;
-    int pos;
+    struct carc *ca;
+    size_t pos;
 
-    fprintf(f, "%d%s", st, (ca[0].co) ? ":" : ".");
+    fprintf(f, "%d%s", st, (cnfa->stflags[st] & CNFA_NOPROGRESS) ? ":" : ".");
     pos = 1;
-    for (i = 1; ca[i].co != COLORLESS; i++) {
-	if (ca[i].co < cnfa->ncolors) {
-	    fprintf(f, "\t[%ld]->%d", (long) ca[i].co, ca[i].to);
+    for (ca = cnfa->states[st]; ca->co != COLORLESS; ca++) {
+	if (ca->co < cnfa->ncolors) {
+	    fprintf(f, "\t[%d]->%" TCL_Z_MODIFIER "u", ca->co, ca->to);
 	} else {
-	    fprintf(f, "\t:%ld:->%d", (long) ca[i].co-cnfa->ncolors,ca[i].to);
+	    fprintf(f, "\t:%d:->%" TCL_Z_MODIFIER "u", ca->co - cnfa->ncolors, ca->to);
 	}
 	if (pos == 5) {
 	    fprintf(f, "\n");
@@ -3234,7 +3199,7 @@ dumpcstate(
 	    pos++;
 	}
     }
-    if (i == 1 || pos != 1) {
+    if (ca == cnfa->states[st] || pos != 1) {
 	fprintf(f, "\n");
     }
     fflush(f);
diff --git a/generic/regcomp.c b/generic/regcomp.c
index 1a3e334..949f397 100644
--- a/generic/regcomp.c
+++ b/generic/regcomp.c
@@ -2,7 +2,7 @@
  * re_*comp and friends - compile REs
  * This file #includes several others (see the bottom).
  *
- * Copyright (c) 1998, 1999 Henry Spencer. All rights reserved.
+ * Copyright © 1998, 1999 Henry Spencer. All rights reserved.
  *
  * Development of this software was funded, in part, by Cray Research Inc.,
  * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
@@ -39,7 +39,7 @@
 /* automatically gathered by fwd; do not hand-edit */
 /* === regcomp.c === */
 int compile(regex_t *, const chr *, size_t, int);
-static void moresubs(struct vars *, int);
+static void moresubs(struct vars *, size_t);
 static int freev(struct vars *, int);
 static void makesearch(struct vars *, struct nfa *);
 static struct subre *parse(struct vars *, int, int, struct state *, struct state *);
@@ -56,10 +56,9 @@ static const chr *scanplain(struct vars *);
 static void onechr(struct vars *, pchr, struct state *, struct state *);
 static void dovec(struct vars *, struct cvec *, struct state *, struct state *);
 static void wordchrs(struct vars *);
-static struct subre *subre(struct vars *, int, int, struct state *, struct state *);
+static struct subre *sub_re(struct vars *, int, int, struct state *, struct state *);
 static void freesubre(struct vars *, struct subre *);
 static void freesrnode(struct vars *, struct subre *);
-static void optst(struct vars *, struct subre *);
 static int numst(struct subre *, int);
 static void markst(struct subre *);
 static void cleanst(struct vars *);
@@ -79,13 +78,10 @@ static void lexnest(struct vars *, const chr *, const chr *);
 static void lexword(struct vars *);
 static int next(struct vars *);
 static int lexescape(struct vars *);
-static chr lexdigits(struct vars *, int, int, int);
+static int lexdigits(struct vars *, int, int, int);
 static int brenext(struct vars *, pchr);
 static void skip(struct vars *);
-static chr newline(NOPARMS);
-#ifdef REG_DEBUG
-static const chr *ch(NOPARMS);
-#endif
+static chr newline(void);
 static chr chrnamed(struct vars *, const chr *, const chr *, pchr);
 /* === regc_color.c === */
 static void initcm(struct vars *, struct colormap *);
@@ -139,7 +135,7 @@ static void cloneouts(struct nfa *, struct state *, struct state *, struct state
 static void delsub(struct nfa *, struct state *, struct state *);
 static void deltraverse(struct nfa *, struct state *, struct state *);
 static void dupnfa(struct nfa *, struct state *, struct state *, struct state *, struct state *);
-static void duptraverse(struct nfa *, struct state *, struct state *);
+static void duptraverse(struct nfa *, struct state *, struct state *, int);
 static void cleartraverse(struct nfa *, struct state *);
 static void specialcolors(struct nfa *);
 static long optimize(struct nfa *, FILE *);
@@ -160,7 +156,7 @@ static void fixconstraintloops(struct nfa *, FILE *);
 static int	findconstraintloop(struct nfa *, struct state *);
 static void breakconstraintloop(struct nfa *, struct state *);
 static void clonesuccessorstates(struct nfa *, struct state *, struct state *,
-		 struct state *, struct arc *, char *, char *, int);
+		 struct state *, struct arc *, char *, char *, size_t);
 static void cleanup(struct nfa *);
 static void markreachable(struct nfa *, struct state *, struct state *, struct state *);
 static void markcanreach(struct nfa *, struct state *, struct state *, struct state *);
@@ -177,14 +173,14 @@ static void dumparc(struct arc *, struct state *, FILE *);
 #endif
 static void dumpcnfa(struct cnfa *, FILE *);
 #ifdef REG_DEBUG
-static void dumpcstate(int, struct carc *, struct cnfa *, FILE *);
+static void dumpcstate(int, struct cnfa *, FILE *);
 #endif
 /* === regc_cvec.c === */
 static struct cvec *clearcvec(struct cvec *);
 static void addchr(struct cvec *, pchr);
 static void addrange(struct cvec *, pchr, pchr);
-static struct cvec *newcvec(int, int);
-static struct cvec *getcvec(struct vars *, int, int);
+static struct cvec *newcvec(size_t, size_t);
+static struct cvec *getcvec(struct vars *, size_t, size_t);
 static void freecvec(struct cvec *);
 /* === regc_locale.c === */
 static celt element(struct vars *, const chr *, const chr *);
@@ -209,9 +205,9 @@ struct vars {
     int cflags;			/* copy of compile flags */
     int lasttype;		/* type of previous token */
     int nexttype;		/* type of next token */
-    chr nextvalue;		/* value (if any) of next token */
+    size_t nextvalue;		/* value (if any) of next token */
     int lexcon;			/* lexical context type (see lex.c) */
-    int nsubexp;		/* subexpression count */
+    size_t nsubexp;		/* subexpression count */
     struct subre **subs;	/* subRE pointer vector */
     size_t nsubs;		/* length of vector */
     struct subre *sub10[10];	/* initial vector, enough for most */
@@ -222,11 +218,12 @@ struct vars {
     struct subre *tree;		/* subexpression tree */
     struct subre *treechain;	/* all tree nodes allocated */
     struct subre *treefree;	/* any free tree nodes */
-    int ntree;			/* number of tree nodes */
+    int ntree;			/* number of tree nodes, plus one */
     struct cvec *cv;		/* interface cvec */
     struct cvec *cv2;		/* utility cvec */
     struct subre *lacons;	/* lookahead-constraint vector */
-    int nlacons;		/* size of lacons */
+    size_t nlacons;		/* size of lacons */
+    size_t spaceused;		/* approx. space used for compilation */
 };
 
 /* parsing macros; most know that `v' is the struct vars pointer */
@@ -235,17 +232,18 @@ struct vars {
 #define	EAT(t)	(SEE(t) && next(v))	/* if next is this, swallow it */
 #define	VISERR(vv)	((vv)->err != 0)/* have we seen an error yet? */
 #define	ISERR()	VISERR(v)
-#define	VERR(vv,e) \
-	((vv)->nexttype = EOS, ((vv)->err) ? (vv)->err : ((vv)->err = (e)))
+#define VERR(vv,e)	((vv)->nexttype = EOS, \
+			 (vv)->err = ((vv)->err ? (vv)->err : (e)))
 #define	ERR(e)	VERR(v, e)		/* record an error */
 #define	NOERR()	{if (ISERR()) return;}	/* if error seen, return */
 #define	NOERRN()	{if (ISERR()) return NULL;}	/* NOERR with retval */
 #define	NOERRZ()	{if (ISERR()) return 0;}	/* NOERR with retval */
-#define	INSIST(c, e)	((c) ? 0 : ERR(e))	/* if condition false, error */
+#define INSIST(c, e) do { if (!(c)) ERR(e); } while (0)	/* error if c false */
 #define	NOTE(b)	(v->re->re_info |= (b))		/* note visible condition */
 #define	EMPTYARC(x, y)	newarc(v->nfa, EMPTY, 0, x, y)
 
 /* token type codes, some also used as NFA arc types */
+#undef	DIGIT /* prevent conflict with libtommath */
 #define	EMPTY	'n'		/* no token present */
 #define	EOS	'e'		/* end of string */
 #define	PLAIN	'p'		/* ordinary character */
@@ -270,12 +268,14 @@ struct vars {
 	((a)->type == PLAIN || (a)->type == AHEAD || (a)->type == BEHIND)
 
 /* static function list */
-static struct fns functions = {
+static const struct fns functions = {
     rfree,			/* regfree insides */
 };
 
 /*
  - compile - compile regular expression
+ * Note: on failure, no resources remain allocated, so regfree()
+ * need not be applied to re.
  ^ int compile(regex_t *, const chr *, size_t, int);
  */
 int
@@ -287,8 +287,7 @@ compile(
 {
     AllocVars(v);
     struct guts *g;
-    int i;
-    size_t j;
+    size_t i, j;
     FILE *debug = (flags&REG_PROGRESS) ? stdout : NULL;
 #define	CNOERR()	{ if (ISERR()) return freev(v, v->err); }
 
@@ -336,17 +335,17 @@ compile(
     v->cv2 = NULL;
     v->lacons = NULL;
     v->nlacons = 0;
+    v->spaceused = 0;
     re->re_magic = REMAGIC;
     re->re_info = 0;		/* bits get set during parse */
-    re->re_csize = sizeof(chr);
     re->re_guts = NULL;
-    re->re_fns = VS(&functions);
+    re->re_fns = (void*)(&functions);
 
     /*
      * More complex setup, malloced things.
      */
 
-    re->re_guts = VS(MALLOC(sizeof(struct guts)));
+    re->re_guts = (void*)(MALLOC(sizeof(struct guts)));
     if (re->re_guts == NULL) {
 	return freev(v, REG_ESPACE);
     }
@@ -394,7 +393,6 @@ compile(
 	dumpnfa(v->nfa, debug);
 	dumpst(v->tree, debug, 1);
     }
-    optst(v, v->tree);
     v->ntree = numst(v->tree, 1);
     markst(v->tree);
     cleanst(v);
@@ -412,7 +410,7 @@ compile(
     assert(v->nlacons == 0 || v->lacons != NULL);
     for (i = 1; i < v->nlacons; i++) {
 	if (debug != NULL) {
-	    fprintf(debug, "\n\n\n========= LA%d ==========\n", i);
+	    fprintf(debug, "\n\n\n========= LA%" TCL_Z_MODIFIER "u ==========\n", i);
 	}
 	nfanode(v, &v->lacons[i], debug);
     }
@@ -433,7 +431,7 @@ compile(
      * Can sacrifice main NFA now, so use it as work area.
      */
 
-    (DISCARD) optimize(v->nfa, debug);
+    (void) optimize(v->nfa, debug);
     CNOERR();
     makesearch(v, v->nfa);
     CNOERR();
@@ -468,18 +466,18 @@ compile(
 
 /*
  - moresubs - enlarge subRE vector
- ^ static void moresubs(struct vars *, int);
+ ^ static void moresubs(struct vars *, size_t);
  */
 static void
 moresubs(
     struct vars *v,
-    int wanted)			/* want enough room for this one */
+    size_t wanted)			/* want enough room for this one */
 {
     struct subre **p;
     size_t n;
 
-    assert(wanted > 0 && (size_t)wanted >= v->nsubs);
-    n = (size_t)wanted * 3 / 2 + 1;
+    assert(wanted > 0 && wanted >= v->nsubs);
+    n = wanted * 3 / 2 + 1;
     if (v->subs == v->sub10) {
 	p = (struct subre **) MALLOC(n * sizeof(struct subre *));
 	if (p != NULL) {
@@ -498,7 +496,7 @@ moresubs(
 	*p = NULL;
     }
     assert(v->nsubs == n);
-    assert((size_t)wanted < v->nsubs);
+    assert(wanted < v->nsubs);
 }
 
 /*
@@ -512,7 +510,7 @@ freev(
     struct vars *v,
     int err)
 {
-    register int ret;
+    int ret;
 
     if (v->re != NULL) {
 	rfree(v->re);
@@ -646,7 +644,7 @@ makesearch(
  * together with '|'. They appear in the tree as the left children of a chain
  * of '|' subres.
  ^ static struct subre *parse(struct vars *, int, int, struct state *,
- ^ 	struct state *);
+ ^	struct state *);
  */
 static struct subre *
 parse(
@@ -664,7 +662,7 @@ parse(
 
     assert(stopper == ')' || stopper == EOS);
 
-    branches = subre(v, '|', LONGER, init, final);
+    branches = sub_re(v, '|', LONGER, init, final);
     NOERRN();
     branch = branches;
     firstbranch = 1;
@@ -674,7 +672,7 @@ parse(
 	     * Need a place to hang the branch.
 	     */
 
-	    branch->right = subre(v, '|', LONGER, init, final);
+	    branch->right = sub_re(v, '|', LONGER, init, final);
 	    NOERRN();
 	    branch = branch->right;
 	}
@@ -728,7 +726,7 @@ parse(
  * Concatenated things are bundled up as much as possible, with separate
  * ',' nodes introduced only when necessary due to substructure.
  ^ static struct subre *parsebranch(struct vars *, int, int, struct state *,
- ^ 	struct state *, int);
+ ^	struct state *, int);
  */
 static struct subre *
 parsebranch(
@@ -745,7 +743,7 @@ parsebranch(
 
     lp = left;
     seencontent = 0;
-    t = subre(v, '=', 0, left, right);	/* op '=' is tentative */
+    t = sub_re(v, '=', 0, left, right);	/* op '=' is tentative */
     NOERRN();
     while (!SEE('|') && !SEE(stopper) && !SEE(EOS)) {
 	if (seencontent) {	/* implicit concat operator */
@@ -777,7 +775,7 @@ parsebranch(
  * particular, it contains a recursion that can involve parsing the rest of
  * the branch, making this function's name somewhat inaccurate.
  ^ static void parseqatom(struct vars *, int, int, struct state *,
- ^ 	struct state *, struct subre *);
+ ^	struct state *, struct subre *);
  */
 static void
 parseqatom(
@@ -796,7 +794,7 @@ parseqatom(
     struct subre *t;
     int cap;			/* capturing parens? */
     int pos;			/* positive lookahead? */
-    int subno;			/* capturing-parens or backref number */
+    size_t subno;		/* capturing-parens or backref number */
     int atomtype;
     int qprefer;		/* quantifier short/long preference */
     int f;
@@ -809,7 +807,7 @@ parseqatom(
     atom = NULL;
     assert(lp->nouts == 0);	/* must string new code */
     assert(rp->nins == 0);	/* between lp and rp */
-    subno = 0;			/* just to shut lint up */
+    subno = 0;
 
     /*
      * An atom or constraint...
@@ -953,10 +951,10 @@ parseqatom(
 	if (cap) {
 	    v->nsubexp++;
 	    subno = v->nsubexp;
-	    if ((size_t)subno >= v->nsubs) {
+	    if (subno >= v->nsubs) {
 		moresubs(v, subno);
 	    }
-	    assert((size_t)subno < v->nsubs);
+	    assert(subno < v->nsubs);
 	} else {
 	    atomtype = PLAIN;	/* something that's not '(' */
 	}
@@ -978,7 +976,7 @@ parseqatom(
 	NOERR();
 	if (cap) {
 	    v->subs[subno] = atom;
-	    t = subre(v, '(', atom->flags|CAP, lp, rp);
+	    t = sub_re(v, '(', atom->flags|CAP, lp, rp);
 	    NOERR();
 	    t->subno = subno;
 	    t->left = atom;
@@ -996,7 +994,7 @@ parseqatom(
 	INSIST(v->subs[v->nextvalue] != NULL, REG_ESUBREG);
 	NOERR();
 	assert(v->nextvalue > 0);
-	atom = subre(v, 'b', BACKR, lp, rp);
+	atom = sub_re(v, 'b', BACKR, lp, rp);
 	NOERR();
 	subno = v->nextvalue;
 	atom->subno = subno;
@@ -1111,18 +1109,24 @@ parseqatom(
      */
 
     if (atom == NULL) {
-	atom = subre(v, '=', 0, lp, rp);
+	atom = sub_re(v, '=', 0, lp, rp);
 	NOERR();
     }
 
     /*
      * Prepare a general-purpose state skeleton.
      *
-     *    ---> [s] ---prefix---> [begin] ---atom---> [end] ----rest---> [rp]
-     *   /                                            /
-     * [lp] ----> [s2] ----bypass---------------------
+     * In the no-backrefs case, we want this:
+     *
+     * [lp] ---> [s] ---prefix---> [begin] ---atom---> [end] ---rest---> [rp]
+     *
+     * where prefix is some repetitions of atom.  In the general case we need
+     *
+     * [lp] ---> [s] ---iterator---> [s2] ---rest---> [rp]
      *
-     * where bypass is an empty, and prefix is some repetitions of atom
+     * where the iterator wraps around [begin] ---atom---> [end]
+     *
+     * We make the s state here for both cases; s2 is made below if needed
      */
 
     s = newstate(v->nfa);	/* first, new endpoints for the atom */
@@ -1133,18 +1137,16 @@ parseqatom(
     NOERR();
     atom->begin = s;
     atom->end = s2;
-    s = newstate(v->nfa);	/* and spots for prefix and bypass */
-    s2 = newstate(v->nfa);
+    s = newstate(v->nfa);	/* set up starting state */
     NOERR();
     EMPTYARC(lp, s);
-    EMPTYARC(lp, s2);
     NOERR();
 
     /*
      * Break remaining subRE into x{...} and what follows.
      */
 
-    t = subre(v, '.', COMBINE(qprefer, atom->flags), lp, rp);
+    t = sub_re(v, '.', COMBINE(qprefer, atom->flags), lp, rp);
     NOERR();
     t->left = atom;
     atomp = &t->left;
@@ -1158,7 +1160,7 @@ parseqatom(
      */
 
     assert(top->op == '=' && top->left == NULL && top->right == NULL);
-    top->left = subre(v, '=', top->flags, top->begin, lp);
+    top->left = sub_re(v, '=', top->flags, top->begin, lp);
     NOERR();
     top->op = '.';
     top->right = t;
@@ -1184,27 +1186,8 @@ parseqatom(
     }
 
     /*
-     * It's quantifier time; first, turn x{0,...} into x{1,...}|empty
-     */
-
-    if (m == 0) {
-	EMPTYARC(s2, atom->end);/* the bypass */
-	assert(PREF(qprefer) != 0);
-	f = COMBINE(qprefer, atom->flags);
-	t = subre(v, '|', f, lp, atom->end);
-	NOERR();
-	t->left = atom;
-	t->right = subre(v, '|', PREF(f), s2, atom->end);
-	NOERR();
-	t->right->left = subre(v, '=', 0, s2, atom->end);
-	NOERR();
-	*atomp = t;
-	atomp = &t->left;
-	m = 1;
-    }
-
-    /*
-     * Deal with the rest of the quantifier.
+     * It's quantifier time.  If the atom is just a backref, we'll let it deal
+     * with quantifiers internally.
      */
 
     if (atomtype == BACKREF) {
@@ -1222,28 +1205,54 @@ parseqatom(
 	atom->min = (short) m;
 	atom->max = (short) n;
 	atom->flags |= COMBINE(qprefer, atom->flags);
+	/* rest of branch can be strung starting from atom->end */
+	s2 = atom->end;
     } else if (m == 1 && n == 1) {
 	/*
 	 * No/vacuous quantifier: done.
 	 */
 
 	EMPTYARC(s, atom->begin);	/* empty prefix */
-    } else {
+	/* rest of branch can be strung starting from atom->end */
+	s2 = atom->end;
+    } else if (m > 0 && !(atom->flags & BACKR)) {
 	/*
-	 * Turn x{m,n} into x{m-1,n-1}x, with capturing parens in only second
-	 * x
+	 * If there's no backrefs involved, we can turn x{m,n} into
+	 * x{m-1,n-1}x, with capturing parens in only the second x.  This
+	 * is valid because we only care about capturing matches from the
+	 * final iteration of the quantifier.  It's a win because we can
+	 * implement the backref-free left side as a plain DFA node, since
+	 * we don't really care where its submatches are.
 	 */
 
 	dupnfa(v->nfa, atom->begin, atom->end, s, atom->begin);
 	assert(m >= 1 && m != DUPINF && n >= 1);
 	repeat(v, s, atom->begin, m-1, (n == DUPINF) ? n : n-1);
 	f = COMBINE(qprefer, atom->flags);
-	t = subre(v, '.', f, s, atom->end);	/* prefix and atom */
+	t = sub_re(v, '.', f, s, atom->end);	/* prefix and atom */
 	NOERR();
-	t->left = subre(v, '=', PREF(f), s, atom->begin);
+	t->left = sub_re(v, '=', PREF(f), s, atom->begin);
 	NOERR();
 	t->right = atom;
 	*atomp = t;
+	/* rest of branch can be strung starting from atom->end */
+	s2 = atom->end;
+    } else {
+	/* general case: need an iteration node */
+	s2 = newstate(v->nfa);
+	NOERR();
+	moveouts(v->nfa, atom->end, s2);
+	NOERR();
+	dupnfa(v->nfa, atom->begin, atom->end, s, s2);
+	repeat(v, s, s2, m, n);
+	f = COMBINE(qprefer, atom->flags);
+	t = sub_re(v, '*', f, s, s2);
+	NOERR();
+	t->min = (short) m;
+	t->max = (short) n;
+	t->left = atom;
+	*atomp = t;
+	/* rest of branch is to be strung from iteration's end state */
     }
 
     /*
@@ -1252,10 +1261,10 @@ parseqatom(
 
     t = top->right;
     if (!(SEE('|') || SEE(stopper) || SEE(EOS))) {
-	t->right = parsebranch(v, stopper, type, atom->end, rp, 1);
+	t->right = parsebranch(v, stopper, type, s2, rp, 1);
     } else {
-	EMPTYARC(atom->end, rp);
-	t->right = subre(v, '=', 0, atom->end, rp);
+	EMPTYARC(s2, rp);
+	t->right = sub_re(v, '=', 0, s2, rp);
     }
     NOERR();
     assert(SEE('|') || SEE(stopper) || SEE(EOS));
@@ -1322,6 +1331,8 @@ scannum(
 
 /*
  - repeat - replicate subNFA for quantifiers
+ * The sub-NFA strung from lp to rp is modified to represent m to n
+ * repetitions of its initial contents.
  * The duplication sequences used here are chosen carefully so that any
  * pointers starting out pointing into the subexpression end up pointing into
  * the last occurrence. (Note that it may not be strung between the same left
@@ -1482,7 +1493,7 @@ brackpart(
     celt startc, endc;
     struct cvec *cv;
     const chr *startp, *endp;
-    chr c[1];
+    chr c;
 
     /*
      * Parse something, get rid of special cases, take shortcuts.
@@ -1494,7 +1505,7 @@ brackpart(
 	return;
 	break;
     case PLAIN:
-	c[0] = v->nextvalue;
+	c = v->nextvalue;
 	NEXT();
 
 	/*
@@ -1502,10 +1513,10 @@ brackpart(
 	 */
 
 	if (!SEE(RANGE)) {
-	    onechr(v, c[0], lp, rp);
+	    onechr(v, c, lp, rp);
 	    return;
 	}
-	startc = element(v, c, c+1);
+	startc = element(v, &c, &c+1);
 	NOERR();
 	break;
     case COLLEL:
@@ -1549,9 +1560,9 @@ brackpart(
 	switch (v->nexttype) {
 	case PLAIN:
 	case RANGE:
-	    c[0] = v->nextvalue;
+	    c = v->nextvalue;
 	    NEXT();
-	    endc = element(v, c, c+1);
+	    endc = element(v, &c, &c+1);
 	    NOERR();
 	    break;
 	case COLLEL:
@@ -1638,7 +1649,7 @@ onechr(
 /*
  - dovec - fill in arcs for each element of a cvec
  ^ static void dovec(struct vars *, struct cvec *, struct state *,
- ^ 	struct state *);
+ ^	struct state *);
  */
 static void
 dovec(
@@ -1705,12 +1716,12 @@ wordchrs(
 }
 
 /*
- - subre - allocate a subre
- ^ static struct subre *subre(struct vars *, int, int, struct state *,
+ - sub_re - allocate a subre
+ ^ static struct subre *sub_re(struct vars *, int, int, struct state *,
  ^	struct state *);
  */
 static struct subre *
-subre(
+sub_re(
     struct vars *v,
     int op,
     int flags,
@@ -1731,11 +1742,11 @@ subre(
 	v->treechain = ret;
     }
 
-    assert(strchr("|.b(=", op) != NULL);
+    assert(strchr("=b|.*(", op) != NULL);
 
     ret->op = op;
     ret->flags = flags;
-    ret->retry = 0;
+    ret->id = 0;		/* will be assigned later */
     ret->subno = 0;
     ret->min = ret->max = 1;
     ret->left = NULL;
@@ -1788,7 +1799,8 @@ freesrnode(
     }
     sr->flags = 0;
 
-    if (v != NULL) {
+    if (v != NULL && v->treechain != NULL) {
+	/* we're still parsing, maybe we can reuse the subre */
 	sr->left = v->treefree;
 	v->treefree = sr;
     } else {
@@ -1797,26 +1809,7 @@ freesrnode(
 }
 
 /*
- - optst - optimize a subRE subtree
- ^ static void optst(struct vars *, struct subre *);
- */
-static void
-optst(
-    struct vars *v,
-    struct subre *t)
-{
-    /*
-     * DGP (2007-11-13): I assume it was the programmer's intent to eventually
-     * come back and add code to optimize subRE trees, but the routine coded
-     * just spends effort traversing the tree and doing nothing. We can do
-     * nothing with less effort.
-     */
-
-    return;
-}
-
-/*
- - numst - number tree nodes (assigning retry indexes)
+ - numst - number tree nodes (assigning "id" indexes)
  ^ static int numst(struct subre *, int);
  */
 static int			/* next number */
@@ -1829,7 +1822,7 @@ numst(
     assert(t != NULL);
 
     i = start;
-    t->retry = (short) i++;
+    t->id = (short) i++;
     if (t->left != NULL) {
 	i = numst(t->left, i);
     }
@@ -1841,6 +1834,19 @@ numst(
 
 /*
  - markst - mark tree nodes as INUSE
+ * Note: this is a great deal more subtle than it looks.  During initial
+ * parsing of a regex, all subres are linked into the treechain list;
+ * discarded ones are also linked into the treefree list for possible reuse.
+ * After we are done creating all subres required for a regex, we run markst()
+ * then cleanst(), which results in discarding all subres not reachable from
+ * v->tree.  We then clear v->treechain, indicating that subres must be found
+ * by descending from v->tree.  This changes the behavior of freesubre(): it
+ * will henceforth FREE() unwanted subres rather than sticking them into the
+ * treefree list.  (Doing that any earlier would result in dangling links in
+ * the treechain list.)  This all means that freev() will clean up correctly
+ * if invoked before or after markst()+cleanst(); but it would not work if
+ * called partway through this state conversion, so we mustn't error out
+ * in or between these two functions.
  ^ static void markst(struct subre *);
  */
 static void
@@ -1892,10 +1898,10 @@ nfatree(
     assert(t != NULL && t->begin != NULL);
 
     if (t->left != NULL) {
-	(DISCARD) nfatree(v, t->left, f);
+	(void) nfatree(v, t->left, f);
     }
     if (t->right != NULL) {
-	(DISCARD) nfatree(v, t->right, f);
+	(void) nfatree(v, t->right, f);
     }
 
     return nfanode(v, t, f);
@@ -1947,24 +1953,26 @@ newlacon(
     struct state *end,
     int pos)
 {
-    struct subre *sub;
     int n;
+    struct subre *newlacons;
+    struct subre *sub;
 
     if (v->nlacons == 0) {
-	v->lacons = (struct subre *) MALLOC(2 * sizeof(struct subre));
 	n = 1;		/* skip 0th */
-	v->nlacons = 2;
+	newlacons = (struct subre *) MALLOC(2 * sizeof(struct subre));
     } else {
-	v->lacons = (struct subre *) REALLOC(v->lacons,
-		(v->nlacons+1)*sizeof(struct subre));
-	n = v->nlacons++;
+	n = v->nlacons;
+	newlacons = (struct subre *) REALLOC(v->lacons,
+					     (n + 1) * sizeof(struct subre));
     }
 
-    if (v->lacons == NULL) {
+    if (newlacons == NULL) {
 	ERR(REG_ESPACE);
 	return 0;
     }
 
+    v->lacons = newlacons;
+    v->nlacons = n + 1;
     sub = &v->lacons[n];
     sub->begin = begin;
     sub->end = end;
@@ -2012,18 +2020,20 @@ rfree(
     g = (struct guts *) re->re_guts;
     re->re_guts = NULL;
     re->re_fns = NULL;
-    g->magic = 0;
-    freecm(&g->cmap);
-    if (g->tree != NULL) {
-	freesubre(NULL, g->tree);
-    }
-    if (g->lacons != NULL) {
-	freelacons(g->lacons, g->nlacons);
-    }
-    if (!NULLCNFA(g->search)) {
-	freecnfa(&g->search);
+    if (g != NULL) {
+	g->magic = 0;
+	freecm(&g->cmap);
+	if (g->tree != NULL) {
+	    freesubre(NULL, g->tree);
+	}
+	if (g->lacons != NULL) {
+	    freelacons(g->lacons, g->nlacons);
+	}
+	if (!NULLCNFA(g->search)) {
+	    freecnfa(&g->search);
+	}
+	FREE(g);
     }
-    FREE(g);
 }
 
 /*
@@ -2037,7 +2047,7 @@ dump(
 {
 #ifdef REG_DEBUG
     struct guts *g;
-    int i;
+    size_t i;
 
     if (re->re_magic != REMAGIC) {
 	fprintf(f, "bad magic number (0x%x not 0x%x)\n",
@@ -2054,8 +2064,8 @@ dump(
     }
 
     fprintf(f, "\n\n\n========= DUMP ==========\n");
-    fprintf(f, "nsub %d, info 0%lo, csize %d, ntree %d\n",
-	    re->re_nsub, re->re_info, re->re_csize, g->ntree);
+    fprintf(f, "nsub %" TCL_Z_MODIFIER "u, info 0%lo, ntree %" TCL_Z_MODIFIER "u\n",
+	    re->re_nsub, re->re_info, g->ntree);
 
     dumpcolors(&g->cmap, f);
     if (!NULLCNFA(g->search)) {
@@ -2063,12 +2073,15 @@ dump(
 	dumpcnfa(&g->search, f);
     }
     for (i = 1; i < g->nlacons; i++) {
-	fprintf(f, "\nla%d (%s):\n", i,
+	fprintf(f, "\nla%" TCL_Z_MODIFIER "u (%s):\n", i,
 		(g->lacons[i].subno) ? "positive" : "negative");
 	dumpcnfa(&g->lacons[i].cnfa, f);
     }
     fprintf(f, "\n");
     dumpst(g->tree, f, 0);
+#else
+    (void)re;
+    (void)f;
 #endif
 }
 
@@ -2132,7 +2145,7 @@ stdump(
 	fprintf(f, "}");
     }
     if (nfapresent) {
-	fprintf(f, " %ld-%ld", (long)t->begin->no, (long)t->end->no);
+	fprintf(f, " %" TCL_Z_MODIFIER "u-%" TCL_Z_MODIFIER "u", t->begin->no, t->end->no);
     }
     if (t->left != NULL) {
 	fprintf(f, " L:%s", stid(t->left, idbuf, sizeof(idbuf)));
@@ -2164,16 +2177,16 @@ stid(
     size_t bufsize)
 {
     /*
-     * Big enough for hex int or decimal t->retry?
+     * Big enough for hex int or decimal t->id?
      */
 
-    if (bufsize < sizeof(void*)*2 + 3 || bufsize < sizeof(t->retry)*3 + 1) {
+    if (bufsize < sizeof(void*)*2 + 3 || bufsize < sizeof(t->id)*3 + 1) {
 	return "unable";
     }
-    if (t->retry != 0) {
-	sprintf(buf, "%d", t->retry);
+    if (t->id != 0) {
+	snprintf(buf, bufsize, "%d", t->id);
     } else {
-	sprintf(buf, "%p", t);
+	snprintf(buf, bufsize, "%p", t);
     }
     return buf;
 }
diff --git a/generic/regcustom.h b/generic/regcustom.h
index ac33087..e5d7f12 100644
--- a/generic/regcustom.h
+++ b/generic/regcustom.h
@@ -30,16 +30,15 @@
  * Headers if any.
  */
 
-#include "tclInt.h"
+#include "regex.h"
 
 /*
  * Overrides for regguts.h definitions, if any.
  */
 
-#define	FUNCPTR(name, args)	(*name)args
-#define	MALLOC(n)		ckalloc(n)
-#define	FREE(p)			ckfree(VS(p))
-#define	REALLOC(p,n)		ckrealloc(VS(p),n)
+#define	MALLOC(n)		Tcl_AttemptAlloc(n)
+#define	FREE(p)			Tcl_Free(p)
+#define	REALLOC(p,n)		Tcl_AttemptRealloc(p,n)
 
 /*
  * Do not insert extras between the "begin" and "end" lines - this chunk is
@@ -57,15 +56,6 @@
 #ifdef __REG_WIDE_EXEC
 #undef __REG_WIDE_EXEC
 #endif
-#ifdef __REG_REGOFF_T
-#undef __REG_REGOFF_T
-#endif
-#ifdef __REG_VOID_T
-#undef __REG_VOID_T
-#endif
-#ifdef __REG_CONST
-#undef __REG_CONST
-#endif
 #ifdef __REG_NOFRONT
 #undef __REG_NOFRONT
 #endif
@@ -74,9 +64,6 @@
 #endif
 /* Interface types */
 #define	__REG_WIDE_T	Tcl_UniChar
-#define	__REG_REGOFF_T	long	/* Not really right, but good enough... */
-#define	__REG_VOID_T	void
-#define	__REG_CONST	const
 /* Names and declarations */
 #define	__REG_WIDE_COMPILE	TclReComp
 #define	__REG_WIDE_EXEC		TclReExec
@@ -97,15 +84,9 @@ typedef int celt;		/* Type to hold chr, or NOCELT */
 #define	NOCELT (-1)		/* Celt value which is not valid chr */
 #define	CHR(c) (UCHAR(c))	/* Turn char literal into chr literal */
 #define	DIGITVAL(c) ((c)-'0')	/* Turn chr digit into its value */
-#if TCL_UTF_MAX > 3
 #define	CHRBITS	32		/* Bits in a chr; must not use sizeof */
 #define	CHR_MIN	0x00000000	/* Smallest and largest chr; the value */
-#define	CHR_MAX	0xffffffff	/* CHR_MAX-CHR_MIN+1 should fit in uchr */
-#else
-#define	CHRBITS	16		/* Bits in a chr; must not use sizeof */
-#define	CHR_MIN	0x0000		/* Smallest and largest chr; the value */
-#define	CHR_MAX	0xffff		/* CHR_MAX-CHR_MIN+1 should fit in uchr */
-#endif
+#define	CHR_MAX	0x10FFFF	/* CHR_MAX-CHR_MIN+1 should fit in uchr */
 
 /*
  * Functions operating on chr.
@@ -140,7 +121,7 @@ typedef int celt;		/* Type to hold chr, or NOCELT */
 #if 1
 #define AllocVars(vPtr) \
     static Tcl_ThreadDataKey varsKey; \
-    register struct vars *vPtr = (struct vars *) \
+    struct vars *vPtr = (struct vars *) \
 	    Tcl_GetThreadData(&varsKey, sizeof(struct vars))
 #else
 /*
@@ -149,13 +130,15 @@ typedef int celt;		/* Type to hold chr, or NOCELT */
  * faster in practice (measured!)
  */
 #define AllocVars(vPtr) \
-    register struct vars *vPtr = (struct vars *) MALLOC(sizeof(struct vars))
+    struct vars *vPtr = (struct vars *) MALLOC(sizeof(struct vars))
 #define FreeVars(vPtr) \
     FREE(vPtr)
 #endif
 
 /*
- * And pick up the standard header.
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * End:
  */
-
-#include "regex.h"
diff --git a/generic/rege_dfa.c b/generic/rege_dfa.c
index e233680..9602a71 100644
--- a/generic/rege_dfa.c
+++ b/generic/rege_dfa.c
@@ -2,7 +2,7 @@
  * DFA routines
  * This file is #included by regexec.c.
  *
- * Copyright (c) 1998, 1999 Henry Spencer.  All rights reserved.
+ * Copyright © 1998, 1999 Henry Spencer.  All rights reserved.
  *
  * Development of this software was funded, in part, by Cray Research Inc.,
  * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
@@ -36,19 +36,18 @@
  */
 static chr *			/* endpoint, or NULL */
 longest(
-    struct vars *v,		/* used only for debug and exec flags */
-    struct dfa *d,
-    chr *start,			/* where the match should start */
-    chr *stop,			/* match must end at or before here */
-    int *hitstopp)		/* record whether hit v->stop, if non-NULL */
+    struct vars *const v,	/* used only for debug and exec flags */
+    struct dfa *const d,
+    chr *const start,		/* where the match should start */
+    chr *const stop,		/* match must end at or before here */
+    int *const hitstopp)	/* record whether hit v->stop, if non-NULL */
 {
     chr *cp;
     chr *realstop = (stop == v->stop) ? stop : stop + 1;
     color co;
-    struct sset *css;
-    struct sset *ss;
+    struct sset *css, *ss;
     chr *post;
-    int i;
+    size_t i;
     struct colormap *cm = d->cm;
 
     /*
@@ -85,7 +84,7 @@ longest(
 
     if (v->eflags&REG_FTRACE) {
 	while (cp < realstop) {
-	    FDEBUG(("+++ at c%d +++\n", css - d->ssets));
+	    FDEBUG(("+++ at c%d +++\n", (int) (css - d->ssets)));
 	    co = GETCOLOR(cm, *cp);
 	    FDEBUG(("char %c, color %ld\n", (char)*cp, (long)co));
 	    ss = css->outs[co];
@@ -119,7 +118,7 @@ longest(
      * Shutdown.
      */
 
-    FDEBUG(("+++ shutdown at c%d +++\n", css - d->ssets));
+    FDEBUG(("+++ shutdown at c%d +++\n", (int) (css - d->ssets)));
     if (cp == v->stop && stop == v->stop) {
 	if (hitstopp != NULL) {
 	    *hitstopp = 1;
@@ -160,24 +159,23 @@ longest(
 /*
  - shortest - shortest-preferred matching engine
  ^ static chr *shortest(struct vars *, struct dfa *, chr *, chr *, chr *,
- ^ 	chr **, int *);
+ ^	chr **, int *);
  */
 static chr *			/* endpoint, or NULL */
 shortest(
-    struct vars *v,
-    struct dfa *d,
-    chr *start,			/* where the match should start */
-    chr *min,			/* match must end at or after here */
-    chr *max,			/* match must end at or before here */
-    chr **coldp,		/* store coldstart pointer here, if nonNULL */
-    int *hitstopp)		/* record whether hit v->stop, if non-NULL */
+    struct vars *const v,
+    struct dfa *const d,
+    chr *const start,		/* where the match should start */
+    chr *const min,		/* match must end at or after here */
+    chr *const max,		/* match must end at or before here */
+    chr **const coldp,		/* store coldstart pointer here, if nonNULL */
+    int *const hitstopp)	/* record whether hit v->stop, if non-NULL */
 {
     chr *cp;
     chr *realmin = (min == v->stop) ? min : min + 1;
     chr *realmax = (max == v->stop) ? max : max + 1;
     color co;
-    struct sset *css;
-    struct sset *ss;
+    struct sset *css, *ss;
     struct colormap *cm = d->cm;
 
     /*
@@ -215,7 +213,7 @@ shortest(
 
     if (v->eflags&REG_FTRACE) {
 	while (cp < realmax) {
-	    FDEBUG(("--- at c%d ---\n", css - d->ssets));
+	    FDEBUG(("--- at c%d ---\n", (int) (css - d->ssets)));
 	    co = GETCOLOR(cm, *cp);
 	    FDEBUG(("char %c, color %ld\n", (char)*cp, (long)co));
 	    ss = css->outs[co];
@@ -256,7 +254,7 @@ shortest(
     }
 
     if (coldp != NULL) {	/* report last no-progress state set, if any */
-	*coldp = lastcold(v, d);
+	*coldp = lastCold(v, d);
     }
 
     if ((ss->flags&POSTSTATE) && cp > min) {
@@ -284,19 +282,18 @@ shortest(
 }
 
 /*
- - lastcold - determine last point at which no progress had been made
- ^ static chr *lastcold(struct vars *, struct dfa *);
+ - lastCold - determine last point at which no progress had been made
+ ^ static chr *lastCold(struct vars *, struct dfa *);
  */
 static chr *			/* endpoint, or NULL */
-lastcold(
-    struct vars *v,
-    struct dfa *d)
+lastCold(
+    struct vars *const v,
+    struct dfa *const d)
 {
     struct sset *ss;
-    chr *nopr;
-    int i;
+    chr *nopr = d->lastnopr;
+    size_t i;
 
-    nopr = d->lastnopr;
     if (nopr == NULL) {
 	nopr = v->start;
     }
@@ -309,20 +306,20 @@ lastcold(
 }
 
 /*
- - newdfa - set up a fresh DFA
- ^ static struct dfa *newdfa(struct vars *, struct cnfa *,
- ^ 	struct colormap *, struct smalldfa *);
+ - newDFA - set up a fresh DFA
+ ^ static struct dfa *newDFA(struct vars *, struct cnfa *,
+ ^	struct colormap *, struct smalldfa *);
  */
 static struct dfa *
-newdfa(
-    struct vars *v,
-    struct cnfa *cnfa,
-    struct colormap *cm,
+newDFA(
+    struct vars *const v,
+    struct cnfa *const cnfa,
+    struct colormap *const cm,
     struct smalldfa *sml)	/* preallocated space, may be NULL */
 {
     struct dfa *d;
     size_t nss = cnfa->nstates * 2;
-    int wordsper = (cnfa->nstates + UBITS - 1) / UBITS;
+    size_t wordsper = (cnfa->nstates + UBITS - 1) / UBITS;
     struct smalldfa *smallwas = sml;
 
     assert(cnfa != NULL && cnfa->nstates != 0);
@@ -345,12 +342,12 @@ newdfa(
 	d->cptsmalloced = 0;
 	d->mallocarea = (smallwas == NULL) ? (char *)sml : NULL;
     } else {
-	d = (struct dfa *)MALLOC(sizeof(struct dfa));
+	d = (struct dfa *) MALLOC(sizeof(struct dfa));
 	if (d == NULL) {
 	    ERR(REG_ESPACE);
 	    return NULL;
 	}
-	d->ssets = (struct sset *)MALLOC(nss * sizeof(struct sset));
+	d->ssets = (struct sset *) MALLOC(nss * sizeof(struct sset));
 	d->statesarea = (unsigned *)
 		MALLOC((nss+WORK) * wordsper * sizeof(unsigned));
 	d->work = &d->statesarea[nss * wordsper];
@@ -362,7 +359,7 @@ newdfa(
 	d->mallocarea = (char *)d;
 	if (d->ssets == NULL || d->statesarea == NULL ||
 		d->outsarea == NULL || d->incarea == NULL) {
-	    freedfa(d);
+	    freeDFA(d);
 	    ERR(REG_ESPACE);
 	    return NULL;
 	}
@@ -387,12 +384,12 @@ newdfa(
 }
 
 /*
- - freedfa - free a DFA
- ^ static void freedfa(struct dfa *);
+ - freeDFA - free a DFA
+ ^ static void freeDFA(struct dfa *);
  */
 static void
-freedfa(
-    struct dfa *d)
+freeDFA(
+    struct dfa *const d)
 {
     if (d->cptsmalloced) {
 	if (d->ssets != NULL) {
@@ -421,7 +418,7 @@ freedfa(
  */
 static unsigned
 hash(
-    unsigned *uv,
+    unsigned *const uv,
     int n)
 {
     int i;
@@ -440,12 +437,12 @@ hash(
  */
 static struct sset *
 initialize(
-    struct vars *v,		/* used only for debug flags */
-    struct dfa *d,
-    chr *start)
+    struct vars *const v,	/* used only for debug flags */
+    struct dfa *const d,
+    chr *const start)
 {
     struct sset *ss;
-    int i;
+    size_t i;
 
     /*
      * Is previous one still there?
@@ -454,7 +451,7 @@ initialize(
     if (d->nssused > 0 && (d->ssets[0].flags&STARTER)) {
 	ss = &d->ssets[0];
     } else {			/* no, must (re)build it */
-	ss = getvacant(v, d, start, start);
+	ss = getVacantSS(v, d, start, start);
 	for (i = 0; i < d->wordsper; i++) {
 	    ss->states[i] = 0;
 	}
@@ -480,27 +477,23 @@ initialize(
 /*
  - miss - handle a cache miss
  ^ static struct sset *miss(struct vars *, struct dfa *, struct sset *,
- ^ 	pcolor, chr *, chr *);
+ ^	pcolor, chr *, chr *);
  */
 static struct sset *		/* NULL if goes to empty set */
 miss(
-    struct vars *v,		/* used only for debug flags */
-    struct dfa *d,
-    struct sset *css,
-    pcolor co,
-    chr *cp,			/* next chr */
-    chr *start)			/* where the attempt got started */
+    struct vars *const v,	/* used only for debug flags */
+    struct dfa *const d,
+    struct sset *const css,
+    const pcolor co,
+    chr *const cp,		/* next chr */
+    chr *const start)		/* where the attempt got started */
 {
     struct cnfa *cnfa = d->cnfa;
-    int i;
     unsigned h;
     struct carc *ca;
     struct sset *p;
-    int ispost;
-    int noprogress;
-    int gotstate;
-    int dolacons;
-    int sawlacons;
+    size_t i;
+    int isPost, noProgress, gotState, doLAConstraints, sawLAConstraints;
 
     /*
      * For convenience, we can be called even if it might not be a miss.
@@ -519,57 +512,57 @@ miss(
     for (i = 0; i < d->wordsper; i++) {
 	d->work[i] = 0;
     }
-    ispost = 0;
-    noprogress = 1;
-    gotstate = 0;
+    isPost = 0;
+    noProgress = 1;
+    gotState = 0;
     for (i = 0; i < d->nstates; i++) {
 	if (ISBSET(css->states, i)) {
-	    for (ca = cnfa->states[i]+1; ca->co != COLORLESS; ca++) {
+	    for (ca = cnfa->states[i]; ca->co != COLORLESS; ca++) {
 		if (ca->co == co) {
 		    BSET(d->work, ca->to);
-		    gotstate = 1;
+		    gotState = 1;
 		    if (ca->to == cnfa->post) {
-			ispost = 1;
+			isPost = 1;
 		    }
-		    if (!cnfa->states[ca->to]->co) {
-			noprogress = 0;
+		    if (!(cnfa->stflags[ca->to] & CNFA_NOPROGRESS)) {
+			noProgress = 0;
 		    }
-		    FDEBUG(("%d -> %d\n", i, ca->to));
+		    FDEBUG(("%" TCL_Z_MODIFIER "u -> %" TCL_Z_MODIFIER "u\n", i, ca->to));
 		}
 	    }
 	}
     }
-    dolacons = (gotstate) ? (cnfa->flags&HASLACONS) : 0;
-    sawlacons = 0;
-    while (dolacons) {		/* transitive closure */
-	dolacons = 0;
+    doLAConstraints = (gotState ? (cnfa->flags&HASLACONS) : 0);
+    sawLAConstraints = 0;
+    while (doLAConstraints) {		/* transitive closure */
+	doLAConstraints = 0;
 	for (i = 0; i < d->nstates; i++) {
 	    if (ISBSET(d->work, i)) {
-		for (ca = cnfa->states[i]+1; ca->co != COLORLESS; ca++) {
-		    if (ca->co <= cnfa->ncolors) {
-			continue; /* NOTE CONTINUE */
+		for (ca = cnfa->states[i]; ca->co != COLORLESS; ca++) {
+		    if (ca->co < cnfa->ncolors) {
+			continue;	/* NOTE CONTINUE */
 		    }
-		    sawlacons = 1;
+		    sawLAConstraints = 1;
 		    if (ISBSET(d->work, ca->to)) {
-			continue; /* NOTE CONTINUE */
+			continue;	/* NOTE CONTINUE */
 		    }
-		    if (!lacon(v, cnfa, cp, ca->co)) {
-			continue; /* NOTE CONTINUE */
+		    if (!checkLAConstraint(v, cnfa, cp, ca->co)) {
+			continue;	/* NOTE CONTINUE */
 		    }
 		    BSET(d->work, ca->to);
-		    dolacons = 1;
+		    doLAConstraints = 1;
 		    if (ca->to == cnfa->post) {
-			ispost = 1;
+			isPost = 1;
 		    }
-		    if (!cnfa->states[ca->to]->co) {
-			noprogress = 0;
+		    if (!(cnfa->stflags[ca->to] & CNFA_NOPROGRESS)) {
+			noProgress = 0;
 		    }
-		    FDEBUG(("%d :> %d\n", i, ca->to));
+		    FDEBUG(("%" TCL_Z_MODIFIER "u :> %" TCL_Z_MODIFIER"u\n", i, ca->to));
 		}
 	    }
 	}
     }
-    if (!gotstate) {
+    if (!gotState) {
 	return NULL;
     }
     h = HASH(d->work, d->wordsper);
@@ -580,19 +573,19 @@ miss(
 
     for (p = d->ssets, i = d->nssused; i > 0; p++, i--) {
 	 if (HIT(h, d->work, p, d->wordsper)) {
-	     FDEBUG(("cached c%d\n", p - d->ssets));
+	     FDEBUG(("cached c%d\n", (int) (p - d->ssets)));
 	     break;			/* NOTE BREAK OUT */
 	 }
     }
     if (i == 0) {		/* nope, need a new cache entry */
-	p = getvacant(v, d, cp, start);
+	p = getVacantSS(v, d, cp, start);
 	assert(p != css);
 	for (i = 0; i < d->wordsper; i++) {
 	    p->states[i] = d->work[i];
 	}
 	p->hash = h;
-	p->flags = (ispost) ? POSTSTATE : 0;
-	if (noprogress) {
+	p->flags = (isPost ? POSTSTATE : 0);
+	if (noProgress) {
 	    p->flags |= NOPROGRESS;
 	}
 
@@ -601,28 +594,29 @@ miss(
 	 */
     }
 
-    if (!sawlacons) {		/* lookahead conds. always cache miss */
-	FDEBUG(("c%d[%d]->c%d\n", css - d->ssets, co, p - d->ssets));
+    if (!sawLAConstraints) {	/* lookahead conds. always cache miss */
+	FDEBUG(("c%d[%d]->c%d\n",
+		(int) (css - d->ssets), co, (int) (p - d->ssets)));
 	css->outs[co] = p;
 	css->inchain[co] = p->ins;
 	p->ins.ss = css;
-	p->ins.co = (color)co;
+	p->ins.co = (color) co;
     }
     return p;
 }
 
 /*
- - lacon - lookahead-constraint checker for miss()
- ^ static int lacon(struct vars *, struct cnfa *, chr *, pcolor);
+ - checkLAConstraint - lookahead-constraint checker for miss()
+ ^ static int checkLAConstraint(struct vars *, struct cnfa *, chr *, pcolor);
  */
 static int			/* predicate:  constraint satisfied? */
-lacon(
-    struct vars *v,
-    struct cnfa *pcnfa,		/* parent cnfa */
-    chr *cp,
-    pcolor co)			/* "color" of the lookahead constraint */
+checkLAConstraint(
+    struct vars *const v,
+    struct cnfa *const pcnfa,	/* parent cnfa */
+    chr *const cp,
+    const pcolor co)		/* "color" of the lookahead constraint */
 {
-    int n;
+    size_t n;
     struct subre *sub;
     struct dfa *d;
     struct smalldfa sd;
@@ -630,40 +624,38 @@ lacon(
 
     n = co - pcnfa->ncolors;
     assert(n < v->g->nlacons && v->g->lacons != NULL);
-    FDEBUG(("=== testing lacon %d\n", n));
+    FDEBUG(("=== testing lacon %" TCL_Z_MODIFIER "u\n", n));
     sub = &v->g->lacons[n];
-    d = newdfa(v, &sub->cnfa, &v->g->cmap, &sd);
+    d = newDFA(v, &sub->cnfa, &v->g->cmap, &sd);
     if (d == NULL) {
 	ERR(REG_ESPACE);
 	return 0;
     }
-    end = longest(v, d, cp, v->stop, (int *)NULL);
-    freedfa(d);
-    FDEBUG(("=== lacon %d match %d\n", n, (end != NULL)));
+    end = longest(v, d, cp, v->stop, NULL);
+    freeDFA(d);
+    FDEBUG(("=== lacon %" TCL_Z_MODIFIER "u match %d\n", n, (end != NULL)));
     return (sub->subno) ? (end != NULL) : (end == NULL);
 }
 
 /*
- - getvacant - get a vacant state set
+ - getVacantSS - get a vacant state set
  * This routine clears out the inarcs and outarcs, but does not otherwise
  * clear the innards of the state set -- that's up to the caller.
- ^ static struct sset *getvacant(struct vars *, struct dfa *, chr *, chr *);
+ ^ static struct sset *getVacantSS(struct vars *, struct dfa *, chr *, chr *);
  */
 static struct sset *
-getvacant(
-    struct vars *v,		/* used only for debug flags */
-    struct dfa *d,
-    chr *cp,
-    chr *start)
+getVacantSS(
+    struct vars *const v,	/* used only for debug flags */
+    struct dfa *const d,
+    chr *const cp,
+    chr *const start)
 {
     int i;
-    struct sset *ss;
-    struct sset *p;
-    struct arcp ap;
-    struct arcp lastap = {NULL, 0}; /* silence gcc 4 warning */
+    struct sset *ss, *p;
+    struct arcp ap, lastap = {NULL, 0}; /* silence gcc 4 warning */
     color co;
 
-    ss = pickss(v, d, cp, start);
+    ss = pickNextSS(v, d, cp, start);
     assert(!(ss->flags&LOCKED));
 
     /*
@@ -673,7 +665,7 @@ getvacant(
     ap = ss->ins;
     while ((p = ap.ss) != NULL) {
 	co = ap.co;
-	FDEBUG(("zapping c%d's %ld outarc\n", p - d->ssets, (long)co));
+	FDEBUG(("zapping c%d's %ld outarc\n", (int) (p - d->ssets), (long)co));
 	p->outs[co] = NULL;
 	ap = p->inchain[co];
 	p->inchain[co].ss = NULL; /* paranoia */
@@ -690,13 +682,12 @@ getvacant(
 	if (p == NULL) {
 	    continue;		/* NOTE CONTINUE */
 	}
-	FDEBUG(("del outarc %d from c%d's in chn\n", i, p - d->ssets));
+	FDEBUG(("del outarc %d from c%d's in chn\n", i, (int) (p - d->ssets)));
 	if (p->ins.ss == ss && p->ins.co == i) {
 	    p->ins = ss->inchain[i];
 	} else {
 	    assert(p->ins.ss != NULL);
-	    for (ap = p->ins; ap.ss != NULL &&
-		    !(ap.ss == ss && ap.co == i);
+	    for (ap = p->ins; ap.ss != NULL && !(ap.ss == ss && ap.co == i);
 		    ap = ap.ss->inchain[ap.co]) {
 		lastap = ap;
 	    }
@@ -729,19 +720,18 @@ getvacant(
 }
 
 /*
- - pickss - pick the next stateset to be used
- ^ static struct sset *pickss(struct vars *, struct dfa *, chr *, chr *);
+ - pickNextSS - pick the next stateset to be used
+ ^ static struct sset *pickNextSS(struct vars *, struct dfa *, chr *, chr *);
  */
 static struct sset *
-pickss(
-    struct vars *v,		/* used only for debug flags */
-    struct dfa *d,
-    chr *cp,
-    chr *start)
+pickNextSS(
+    struct vars *const v,	/* used only for debug flags */
+    struct dfa *const d,
+    chr *const cp,
+    chr *const start)
 {
     int i;
-    struct sset *ss;
-    struct sset *end;
+    struct sset *ss, *end;
     chr *ancient;
 
     /*
@@ -749,21 +739,21 @@ pickss(
      */
 
     if (d->nssused < d->nssets) {
-	i = d->nssused;
+	size_t j = d->nssused;
 	d->nssused++;
-	ss = &d->ssets[i];
-	FDEBUG(("new c%d\n", i));
+	ss = &d->ssets[j];
+	FDEBUG(("new c%" TCL_Z_MODIFIER "u\n", j));
 
 	/*
 	 * Set up innards.
 	 */
 
-	ss->states = &d->statesarea[i * d->wordsper];
+	ss->states = &d->statesarea[j * d->wordsper];
 	ss->flags = 0;
 	ss->ins.ss = NULL;
 	ss->ins.co = WHITE;	/* give it some value */
-	ss->outs = &d->outsarea[i * d->ncolors];
-	ss->inchain = &d->incarea[i * d->ncolors];
+	ss->outs = &d->outsarea[j * d->ncolors];
+	ss->inchain = &d->incarea[j * d->ncolors];
 	for (i = 0; i < d->ncolors; i++) {
 	    ss->outs[i] = NULL;
 	    ss->inchain[i].ss = NULL;
@@ -775,7 +765,7 @@ pickss(
      * Look for oldest, or old enough anyway.
      */
 
-    if (cp - start > d->nssets*2/3) {	/* oldest 33% are expendable */
+    if ((size_t)(cp - start) > d->nssets*2/3) {	/* oldest 33% are expendable */
 	ancient = cp - d->nssets*2/3;
     } else {
 	ancient = start;
@@ -784,7 +774,7 @@ pickss(
 	if ((ss->lastseen == NULL || ss->lastseen < ancient)
 		&& !(ss->flags&LOCKED)) {
 	    d->search = ss + 1;
-	    FDEBUG(("replacing c%d\n", ss - d->ssets));
+	    FDEBUG(("replacing c%" TCL_Z_MODIFIER "u\n", (size_t)(ss - d->ssets)));
 	    return ss;
 	}
     }
@@ -792,7 +782,7 @@ pickss(
 	if ((ss->lastseen == NULL || ss->lastseen < ancient)
 		&& !(ss->flags&LOCKED)) {
 	    d->search = ss + 1;
-	    FDEBUG(("replacing c%d\n", ss - d->ssets));
+	    FDEBUG(("replacing c%" TCL_Z_MODIFIER "u\n", (size_t)(ss - d->ssets)));
 	    return ss;
 	}
     }
@@ -801,7 +791,7 @@ pickss(
      * Nobody's old enough?!? -- something's really wrong.
      */
 
-    FDEBUG(("can't find victim to replace!\n"));
+    FDEBUG(("cannot find victim to replace!\n"));
     assert(NOTREACHED);
     ERR(REG_ASSERT);
     return d->ssets;
diff --git a/generic/regerror.c b/generic/regerror.c
index a1a0163..5caab8a 100644
--- a/generic/regerror.c
+++ b/generic/regerror.c
@@ -1,7 +1,7 @@
 /*
  * regerror - error-code expansion
  *
- * Copyright (c) 1998, 1999 Henry Spencer.  All rights reserved.
+ * Copyright © 1998, 1999 Henry Spencer.  All rights reserved.
  *
  * Development of this software was funded, in part, by Cray Research Inc.,
  * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
@@ -41,7 +41,7 @@ static const char unk[] = "*** unknown regex error code 0x%x ***";
  * Struct to map among codes, code names, and explanations.
  */
 
-static struct rerr {
+static const struct rerr {
     int code;
     const char *name;
     const char *explain;
@@ -54,15 +54,13 @@ static struct rerr {
 /*
  - regerror - the interface to error numbers
  */
-/* ARGSUSED */
 size_t				/* Actual space needed (including NUL) */
 regerror(
     int code,			/* Error code, or REG_ATOI or REG_ITOA */
-    const regex_t *preg,	/* Associated regex_t (unused at present) */
     char *errbuf,		/* Result buffer (unless errbuf_size==0) */
     size_t errbuf_size)		/* Available space in errbuf, can be 0 */
 {
-    struct rerr *r;
+    const struct rerr *r;
     const char *msg;
     char convbuf[sizeof(unk)+50]; /* 50 = plenty for int */
     size_t len;
@@ -75,7 +73,7 @@ regerror(
 		break;
 	    }
 	}
-	sprintf(convbuf, "%d", r->code); /* -1 for unknown */
+	snprintf(convbuf, sizeof(convbuf), "%d", r->code); /* -1 for unknown */
 	msg = convbuf;
 	break;
     case REG_ITOA:		/* Convert number to name */
@@ -88,7 +86,7 @@ regerror(
 	if (r->code >= 0) {
 	    msg = r->name;
 	} else {		/* Unknown; tell him the number */
-	    sprintf(convbuf, "REG_%u", (unsigned)icode);
+	    snprintf(convbuf, sizeof(convbuf), "REG_%u", icode);
 	    msg = convbuf;
 	}
 	break;
@@ -101,7 +99,7 @@ regerror(
 	if (r->code >= 0) {
 	    msg = r->explain;
 	} else {		/* Unknown; say so */
-	    sprintf(convbuf, unk, code);
+	    snprintf(convbuf, sizeof(convbuf), unk, code);
 	    msg = convbuf;
 	}
 	break;
diff --git a/generic/regerrs.h b/generic/regerrs.h
index 72548ff..8e82a89 100644
--- a/generic/regerrs.h
+++ b/generic/regerrs.h
@@ -11,10 +11,10 @@
 { REG_BADBR,	"REG_BADBR",	"invalid repetition count(s)" },
 { REG_ERANGE,	"REG_ERANGE",	"invalid character range" },
 { REG_ESPACE,	"REG_ESPACE",	"out of memory" },
-{ REG_BADRPT,	"REG_BADRPT",	"quantifier operand invalid" },
-{ REG_ASSERT,	"REG_ASSERT",	"\"can't happen\" -- you found a bug" },
+{ REG_BADRPT,	"REG_BADRPT",	"invalid quantifier operand" },
+{ REG_ASSERT,	"REG_ASSERT",	"\"cannot happen\" -- you found a bug" },
 { REG_INVARG,	"REG_INVARG",	"invalid argument to regex function" },
 { REG_MIXED,	"REG_MIXED",	"character widths of regex and string differ" },
 { REG_BADOPT,	"REG_BADOPT",	"invalid embedded option" },
-{ REG_ETOOBIG,	"REG_ETOOBIG",	"nfa has too many states" },
+{ REG_ETOOBIG,	"REG_ETOOBIG",	"regular expression is too complex" },
 { REG_ECOLORS,	"REG_ECOLORS",	"too many colors" },
diff --git a/generic/regex.h b/generic/regex.h
index b5dce50..72f7037 100644
--- a/generic/regex.h
+++ b/generic/regex.h
@@ -1,5 +1,8 @@
 #ifndef _REGEX_H_
 #define	_REGEX_H_	/* never again */
+
+#include "tclInt.h"
+
 /*
  * regular expressions
  *
@@ -86,15 +89,6 @@ extern "C" {
 #ifdef __REG_WIDE_EXEC
 #undef __REG_WIDE_EXEC
 #endif
-#ifdef __REG_REGOFF_T
-#undef __REG_REGOFF_T
-#endif
-#ifdef __REG_VOID_T
-#undef __REG_VOID_T
-#endif
-#ifdef __REG_CONST
-#undef __REG_CONST
-#endif
 #ifdef __REG_NOFRONT
 #undef __REG_NOFRONT
 #endif
@@ -103,9 +97,6 @@ extern "C" {
 #endif
 /* interface types */
 #define	__REG_WIDE_T	Tcl_UniChar
-#define	__REG_REGOFF_T	long	/* not really right, but good enough... */
-#define	__REG_VOID_T	VOID
-#define	__REG_CONST	CONST
 /* names and declarations */
 #define	__REG_WIDE_COMPILE	TclReComp
 #define	__REG_WIDE_EXEC		TclReExec
@@ -120,45 +111,14 @@ extern "C" {
  */
 
 /*
- * regoff_t has to be large enough to hold either off_t or ssize_t, and must
- * be signed; it's only a guess that long is suitable, so we offer
- * <sys/types.h> an override.
- */
-#ifdef __REG_REGOFF_T
-typedef __REG_REGOFF_T regoff_t;
-#else
-typedef long regoff_t;
-#endif
-
-/*
- * For benefit of old compilers, we offer <sys/types.h> the option of
- * overriding the `void' type used to declare nonexistent return types.
- */
-#ifdef __REG_VOID_T
-typedef __REG_VOID_T re_void;
-#else
-typedef void re_void;
-#endif
-
-/*
- * Also for benefit of old compilers, <sys/types.h> can supply a macro which
- * expands to a substitute for `const'.
- */
-#ifndef __REG_CONST
-#define	__REG_CONST	const
-#endif
-
-
-
-/*
  * other interface types
  */
 
 /* the biggie, a compiled RE (or rather, a front end to same) */
 typedef struct {
     int re_magic;		/* magic number */
-    size_t re_nsub;		/* number of subexpressions */
     long re_info;		/* information about RE */
+    size_t re_nsub;		/* number of subexpressions */
 #define	REG_UBACKREF		000001
 #define	REG_ULOOKAHEAD		000002
 #define	REG_UBOUNDS		000004
@@ -173,17 +133,16 @@ typedef struct {
 #define	REG_UEMPTYMATCH		004000
 #define	REG_UIMPOSSIBLE		010000
 #define	REG_USHORTEST		020000
-    int re_csize;		/* sizeof(character) */
     char *re_endp;		/* backward compatibility kludge */
     /* the rest is opaque pointers to hidden innards */
-    char *re_guts;		/* `char *' is more portable than `void *' */
-    char *re_fns;
+    void *re_guts;
+    void *re_fns;
 } regex_t;
 
 /* result reporting (may acquire more fields later) */
 typedef struct {
-    regoff_t rm_so;		/* start of substring */
-    regoff_t rm_eo;		/* end of substring */
+    size_t rm_so;		/* start of substring */
+    size_t rm_eo;		/* end of substring */
 } regmatch_t;
 
 /* supplementary control and reporting */
@@ -194,13 +153,13 @@ typedef struct {
 /*
  * compilation
  ^ #ifndef __REG_NOCHAR
- ^ int re_comp(regex_t *, __REG_CONST char *, size_t, int);
+ ^ int re_comp(regex_t *, const char *, size_t, int);
  ^ #endif
  ^ #ifndef __REG_NOFRONT
- ^ int regcomp(regex_t *, __REG_CONST char *, int);
+ ^ int regcomp(regex_t *, const char *, int);
  ^ #endif
  ^ #ifdef __REG_WIDE_T
- ^ int __REG_WIDE_COMPILE(regex_t *, __REG_CONST __REG_WIDE_T *, size_t, int);
+ ^ int __REG_WIDE_COMPILE(regex_t *, const __REG_WIDE_T *, size_t, int);
  ^ #endif
  */
 #define	REG_BASIC	000000	/* BREs (convenience) */
@@ -225,14 +184,14 @@ typedef struct {
 /*
  * execution
  ^ #ifndef __REG_NOCHAR
- ^ int re_exec(regex_t *, __REG_CONST char *, size_t,
+ ^ int re_exec(regex_t *, const char *, size_t,
  ^				rm_detail_t *, size_t, regmatch_t [], int);
  ^ #endif
  ^ #ifndef __REG_NOFRONT
- ^ int regexec(regex_t *, __REG_CONST char *, size_t, regmatch_t [], int);
+ ^ int regexec(regex_t *, const char *, size_t, regmatch_t [], int);
  ^ #endif
  ^ #ifdef __REG_WIDE_T
- ^ int __REG_WIDE_EXEC(regex_t *, __REG_CONST __REG_WIDE_T *, size_t,
+ ^ int __REG_WIDE_EXEC(regex_t *, const __REG_WIDE_T *, size_t,
  ^				rm_detail_t *, size_t, regmatch_t [], int);
  ^ #endif
  */
@@ -245,7 +204,7 @@ typedef struct {
 
 /*
  * misc generics (may be more functions here eventually)
- ^ re_void regfree(regex_t *);
+ ^ void regfree(regex_t *);
  */
 
 /*
@@ -257,7 +216,7 @@ typedef struct {
  * of character is used for error reports is independent of what kind is used
  * in matching.
  *
- ^ extern size_t regerror(int, __REG_CONST regex_t *, char *, size_t);
+ ^ extern size_t regerror(int, char *, size_t);
  */
 #define	REG_OKAY	 0	/* no errors detected */
 #define	REG_NOMATCH	 1	/* failed to match */
@@ -277,7 +236,7 @@ typedef struct {
 #define	REG_INVARG	16	/* invalid argument to regex function */
 #define	REG_MIXED	17	/* character widths of regex and string differ */
 #define	REG_BADOPT	18	/* invalid embedded option */
-#define	REG_ETOOBIG	19	/* nfa has too many states */
+#define	REG_ETOOBIG	19	/* regular expression is too complex */
 #define	REG_ECOLORS	20	/* too many colors */
 /* two specials for debugging and testing */
 #define	REG_ATOI	101	/* convert error-code name to number */
@@ -290,25 +249,25 @@ typedef struct {
 /* automatically gathered by fwd; do not hand-edit */
 /* === regproto.h === */
 #ifndef __REG_NOCHAR
-int re_comp(regex_t *, __REG_CONST char *, size_t, int);
+int re_comp(regex_t *, const char *, size_t, int);
 #endif
 #ifndef __REG_NOFRONT
-int regcomp(regex_t *, __REG_CONST char *, int);
+int regcomp(regex_t *, const char *, int);
 #endif
 #ifdef __REG_WIDE_T
-MODULE_SCOPE int __REG_WIDE_COMPILE(regex_t *, __REG_CONST __REG_WIDE_T *, size_t, int);
+MODULE_SCOPE int __REG_WIDE_COMPILE(regex_t *, const __REG_WIDE_T *, size_t, int);
 #endif
 #ifndef __REG_NOCHAR
-int re_exec(regex_t *, __REG_CONST char *, size_t, rm_detail_t *, size_t, regmatch_t [], int);
+int re_exec(regex_t *, const char *, size_t, rm_detail_t *, size_t, regmatch_t [], int);
 #endif
 #ifndef __REG_NOFRONT
-int regexec(regex_t *, __REG_CONST char *, size_t, regmatch_t [], int);
+int regexec(regex_t *, const char *, size_t, regmatch_t [], int);
 #endif
 #ifdef __REG_WIDE_T
-MODULE_SCOPE int __REG_WIDE_EXEC(regex_t *, __REG_CONST __REG_WIDE_T *, size_t, rm_detail_t *, size_t, regmatch_t [], int);
+MODULE_SCOPE int __REG_WIDE_EXEC(regex_t *, const __REG_WIDE_T *, size_t, rm_detail_t *, size_t, regmatch_t [], int);
 #endif
-MODULE_SCOPE re_void regfree(regex_t *);
-MODULE_SCOPE size_t regerror(int, __REG_CONST regex_t *, char *, size_t);
+MODULE_SCOPE void regfree(regex_t *);
+MODULE_SCOPE size_t regerror(int, char *, size_t);
 /* automatically gathered by fwd; do not hand-edit */
 /* =====^!^===== end forwards =====^!^===== */
 
@@ -320,3 +279,11 @@ MODULE_SCOPE size_t regerror(int, __REG_CONST regex_t *, char *, size_t);
 #endif
 
 #endif
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * End:
+ */
diff --git a/generic/regexec.c b/generic/regexec.c
index f3be137..7b84f0f 100644
--- a/generic/regexec.c
+++ b/generic/regexec.c
@@ -1,7 +1,7 @@
 /*
  * re_*exec and friends - match REs
  *
- * Copyright (c) 1998, 1999 Henry Spencer.  All rights reserved.
+ * Copyright © 1998, 1999 Henry Spencer.  All rights reserved.
  *
  * Development of this software was funded, in part, by Cray Research Inc.,
  * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
@@ -44,7 +44,7 @@ struct sset {			/* state set */
     unsigned hash;		/* hash of bitvector */
 #define	HASH(bv, nw)	(((nw) == 1) ? *(bv) : hash(bv, nw))
 #define	HIT(h,bv,ss,nw)	((ss)->hash == (h) && ((nw) == 1 || \
-	memcmp(VS(bv), VS((ss)->states), (nw)*sizeof(unsigned)) == 0))
+	memcmp((void*)(bv), (void*)((ss)->states), (nw)*sizeof(unsigned)) == 0))
     int flags;
 #define	STARTER		01	/* the initial state set */
 #define	POSTSTATE	02	/* includes the goal state */
@@ -57,11 +57,12 @@ struct sset {			/* state set */
 };
 
 struct dfa {
-    int nssets;			/* size of cache */
-    int nssused;		/* how many entries occupied yet */
-    int nstates;		/* number of states */
+    size_t nssets;			/* size of cache */
+    size_t nssused;		/* how many entries occupied yet */
+    size_t nstates;		/* number of states */
+    size_t wordsper;		/* length of state-set bitvectors */
     int ncolors;		/* length of outarc and inchain vectors */
-    int wordsper;		/* length of state-set bitvectors */
+    int cptsmalloced;		/* were the areas individually malloced? */
     struct sset *ssets;		/* state-set cache */
     unsigned *statesarea;	/* bitvector storage */
     unsigned *work;		/* pointer to work area within statesarea */
@@ -72,8 +73,7 @@ struct dfa {
     chr *lastpost;		/* location of last cache-flushed success */
     chr *lastnopr;		/* location of last cache-flushed NOPROGRESS */
     struct sset *search;	/* replacement-search-pointer memory */
-    int cptsmalloced;		/* were the areas individually malloced? */
-    char *mallocarea;		/* self, or master malloced area, or NULL */
+    char *mallocarea;		/* self, or malloced area, or NULL */
 };
 
 #define	WORK	1		/* number of work bitvectors needed */
@@ -91,7 +91,6 @@ struct smalldfa {
     struct sset *outsarea[FEWSTATES*2 * FEWCOLORS];
     struct arcp incarea[FEWSTATES*2 * FEWCOLORS];
 };
-#define	DOMALLOC	((struct smalldfa *)NULL)	/* force malloc */
 
 /*
  * Internal variables, bundled for easy passing around.
@@ -107,17 +106,17 @@ struct vars {
     chr *start;			/* start of string */
     chr *stop;			/* just past end of string */
     int err;			/* error code if any (0 none) */
-    regoff_t *mem;		/* memory vector for backtracking */
+    struct dfa **subdfas;	/* per-subre DFAs */
     struct smalldfa dfa1;
     struct smalldfa dfa2;
 };
 #define	VISERR(vv) ((vv)->err != 0)	/* have we seen an error yet? */
 #define	ISERR()	VISERR(v)
-#define	VERR(vv,e) (((vv)->err) ? (vv)->err : ((vv)->err = (e)))
+#define VERR(vv,e) ((vv)->err = ((vv)->err ? (vv)->err : (e)))
 #define	ERR(e)	VERR(v, e)	/* record an error */
 #define	NOERR()	{if (ISERR()) return v->err;}	/* if error seen, return it */
 #define	OFF(p)	((p) - v->start)
-#define	LOFF(p)	((long)OFF(p))
+#define	LOFF(p)	((size_t)OFF(p))
 
 /*
  * forward declarations
@@ -125,45 +124,45 @@ struct vars {
 /* =====^!^===== begin forwards =====^!^===== */
 /* automatically gathered by fwd; do not hand-edit */
 /* === regexec.c === */
-int exec(regex_t *, CONST chr *, size_t, rm_detail_t *, size_t, regmatch_t [], int);
-static int find(struct vars *, struct cnfa *, struct colormap *);
-static int cfind(struct vars *, struct cnfa *, struct colormap *);
-static int cfindloop(struct vars *, struct cnfa *, struct colormap *, struct dfa *, struct dfa *, chr **);
-static VOID zapsubs(regmatch_t *, size_t);
-static VOID zapmem(struct vars *, struct subre *);
-static VOID subset(struct vars *, struct subre *, chr *, chr *);
-static int dissect(struct vars *, struct subre *, chr *, chr *);
-static int condissect(struct vars *, struct subre *, chr *, chr *);
-static int altdissect(struct vars *, struct subre *, chr *, chr *);
+int exec(regex_t *, const chr *, size_t, rm_detail_t *, size_t, regmatch_t [], int);
+static struct dfa *getsubdfa(struct vars *, struct subre *);
+static int simpleFind(struct vars *const, struct cnfa *const, struct colormap *const);
+static int complicatedFind(struct vars *const, struct cnfa *const, struct colormap *const);
+static int complicatedFindLoop(struct vars *const, struct dfa *const, struct dfa *const, chr **const);
+static void zapallsubs(regmatch_t *const, const size_t);
+static void zaptreesubs(struct vars *const, struct subre *const);
+static void subset(struct vars *const, struct subre *const, chr *const, chr *const);
 static int cdissect(struct vars *, struct subre *, chr *, chr *);
 static int ccondissect(struct vars *, struct subre *, chr *, chr *);
-static int crevdissect(struct vars *, struct subre *, chr *, chr *);
+static int crevcondissect(struct vars *, struct subre *, chr *, chr *);
 static int cbrdissect(struct vars *, struct subre *, chr *, chr *);
 static int caltdissect(struct vars *, struct subre *, chr *, chr *);
+static int citerdissect(struct vars *, struct subre *, chr *, chr *);
+static int creviterdissect(struct vars *, struct subre *, chr *, chr *);
 /* === rege_dfa.c === */
-static chr *longest(struct vars *, struct dfa *, chr *, chr *, int *);
-static chr *shortest(struct vars *, struct dfa *, chr *, chr *, chr *, chr **, int *);
-static chr *lastcold(struct vars *, struct dfa *);
-static struct dfa *newdfa(struct vars *, struct cnfa *, struct colormap *, struct smalldfa *);
-static VOID freedfa(struct dfa *);
-static unsigned hash(unsigned *, int);
-static struct sset *initialize(struct vars *, struct dfa *, chr *);
-static struct sset *miss(struct vars *, struct dfa *, struct sset *, pcolor, chr *, chr *);
-static int lacon(struct vars *, struct cnfa *, chr *, pcolor);
-static struct sset *getvacant(struct vars *, struct dfa *, chr *, chr *);
-static struct sset *pickss(struct vars *, struct dfa *, chr *, chr *);
+static chr *longest(struct vars *const, struct dfa *const, chr *const, chr *const, int *const);
+static chr *shortest(struct vars *const, struct dfa *const, chr *const, chr *const, chr *const, chr **const, int *const);
+static chr *lastCold(struct vars *const, struct dfa *const);
+static struct dfa *newDFA(struct vars *const, struct cnfa *const, struct colormap *const, struct smalldfa *);
+static void freeDFA(struct dfa *const);
+static unsigned hash(unsigned *const, int);
+static struct sset *initialize(struct vars *const, struct dfa *const, chr *const);
+static struct sset *miss(struct vars *const, struct dfa *const, struct sset *const, const pcolor, chr *const, chr *const);
+static int checkLAConstraint(struct vars *const, struct cnfa *const, chr *const, const pcolor);
+static struct sset *getVacantSS(struct vars *const, struct dfa *const, chr *const, chr *const);
+static struct sset *pickNextSS(struct vars *const, struct dfa *const, chr *const, chr *const);
 /* automatically gathered by fwd; do not hand-edit */
 /* =====^!^===== end forwards =====^!^===== */
 
 /*
  - exec - match regular expression
- ^ int exec(regex_t *, CONST chr *, size_t, rm_detail_t *,
+ ^ int exec(regex_t *, const chr *, size_t, rm_detail_t *,
  ^					size_t, regmatch_t [], int);
  */
 int
 exec(
     regex_t *re,
-    CONST chr *string,
+    const chr *string,
     size_t len,
     rm_detail_t *details,
     size_t nmatch,
@@ -171,13 +170,13 @@ exec(
     int flags)
 {
     AllocVars(v);
-    int st;
-    size_t n;
-    int backref;
+    int st, backref;
+    int n;
+    int i;
 #define	LOCALMAT	20
     regmatch_t mat[LOCALMAT];
-#define	LOCALMEM	40
-    regoff_t mem[LOCALMEM];
+#define LOCALDFAS	40
+    struct dfa *subdfas[LOCALDFAS];
 
     /*
      * Sanity checks.
@@ -187,10 +186,6 @@ exec(
 	FreeVars(v);
 	return REG_INVARG;
     }
-    if (re->re_csize != sizeof(chr)) {
-	FreeVars(v);
-	return REG_MIXED;
-    }
 
     /*
      * Setup.
@@ -235,28 +230,22 @@ exec(
     v->start = (chr *)string;
     v->stop = (chr *)string + len;
     v->err = 0;
-    if (backref) {
-	/*
-	 * Need retry memory.
-	 */
-
-	assert(v->g->ntree >= 0);
-	n = (size_t)v->g->ntree;
-	if (n <= LOCALMEM) {
-	    v->mem = mem;
-	} else {
-	    v->mem = (regoff_t *) MALLOC(n*sizeof(regoff_t));
-	}
-	if (v->mem == NULL) {
-	    if (v->pmatch != pmatch && v->pmatch != mat) {
-		FREE(v->pmatch);
-	    }
-	    FreeVars(v);
-	    return REG_ESPACE;
-	}
+    assert(v->g->ntree >= 0);
+    n = v->g->ntree;
+    if (n <= LOCALDFAS) {
+	v->subdfas = subdfas;
     } else {
-	v->mem = NULL;
+	v->subdfas = (struct dfa **) MALLOC(n * sizeof(struct dfa *));
+    }
+    if (v->subdfas == NULL) {
+	if (v->pmatch != pmatch && v->pmatch != mat) {
+	    FREE(v->pmatch);
+	}
+	FreeVars(v);
+	return REG_ESPACE;
     }
+    for (i = 0; i < n; i++)
+	v->subdfas[i] = NULL;
 
     /*
      * Do it.
@@ -264,9 +253,9 @@ exec(
 
     assert(v->g->tree != NULL);
     if (backref) {
-	st = cfind(v, &v->g->tree->cnfa, &v->g->cmap);
+	st = complicatedFind(v, &v->g->tree->cnfa, &v->g->cmap);
     } else {
-	st = find(v, &v->g->tree->cnfa, &v->g->cmap);
+	st = simpleFind(v, &v->g->tree->cnfa, &v->g->cmap);
     }
 
     /*
@@ -274,9 +263,9 @@ exec(
      */
 
     if (st == REG_OKAY && v->pmatch != pmatch && nmatch > 0) {
-	zapsubs(pmatch, nmatch);
+	zapallsubs(pmatch, nmatch);
 	n = (nmatch < v->nmatch) ? nmatch : v->nmatch;
-	memcpy(VS(pmatch), VS(v->pmatch), n*sizeof(regmatch_t));
+	memcpy((void*)(pmatch), (void*)(v->pmatch), n*sizeof(regmatch_t));
     }
 
     /*
@@ -286,31 +275,52 @@ exec(
     if (v->pmatch != pmatch && v->pmatch != mat) {
 	FREE(v->pmatch);
     }
-    if (v->mem != NULL && v->mem != mem) {
-	FREE(v->mem);
+    n = v->g->ntree;
+    for (i = 0; i < n; i++) {
+	if (v->subdfas[i] != NULL) {
+	    freeDFA(v->subdfas[i]);
+	}
+    }
+    if (v->subdfas != subdfas) {
+	FREE(v->subdfas);
     }
     FreeVars(v);
     return st;
 }
 
 /*
- - find - find a match for the main NFA (no-complications case)
- ^ static int find(struct vars *, struct cnfa *, struct colormap *);
+ - getsubdfa - create or re-fetch the DFA for a subre node
+ * We only need to create the DFA once per overall regex execution.
+ * The DFA will be freed by the cleanup step in exec().
+ */
+static struct dfa *
+getsubdfa(struct vars * v,
+	  struct subre * t)
+{
+    if (v->subdfas[t->id] == NULL) {
+	v->subdfas[t->id] = newDFA(v, &t->cnfa, &v->g->cmap, NULL);
+	if (ISERR()) {
+	    return NULL;
+	}
+    }
+    return v->subdfas[t->id];
+}
+
+/*
+ - simpleFind - find a match for the main NFA (no-complications case)
+ ^ static int simpleFind(struct vars *, struct cnfa *, struct colormap *);
  */
 static int
-find(
-    struct vars *v,
-    struct cnfa *cnfa,
-    struct colormap *cm)
+simpleFind(
+    struct vars *const v,
+    struct cnfa *const cnfa,
+    struct colormap *const cm)
 {
-    struct dfa *s;
-    struct dfa *d;
-    chr *begin;
-    chr *end = NULL;
+    struct dfa *s, *d;
+    chr *begin, *end = NULL;
     chr *cold;
-    chr *open;			/* Open and close of range of possible
+    chr *open, *close;		/* Open and close of range of possible
 				 * starts */
-    chr *close;
     int hitend;
     int shorter = (v->g->tree->flags&SHORTER) ? 1 : 0;
 
@@ -318,13 +328,13 @@ find(
      * First, a shot with the search RE.
      */
 
-    s = newdfa(v, &v->g->search, cm, &v->dfa1);
+    s = newDFA(v, &v->g->search, cm, &v->dfa1);
     assert(!(ISERR() && s != NULL));
     NOERR();
-    MDEBUG(("\nsearch at %ld\n", LOFF(v->start)));
+    MDEBUG(("\nsearch at %" TCL_Z_MODIFIER "u\n", LOFF(v->start)));
     cold = NULL;
     close = shortest(v, s, v->start, v->start, v->stop, &cold, NULL);
-    freedfa(s);
+    freeDFA(s);
     NOERR();
     if (v->g->cflags&REG_EXPECT) {
 	assert(v->details != NULL);
@@ -349,18 +359,21 @@ find(
     assert(cold != NULL);
     open = cold;
     cold = NULL;
-    MDEBUG(("between %ld and %ld\n", LOFF(open), LOFF(close)));
-    d = newdfa(v, cnfa, cm, &v->dfa1);
+    MDEBUG(("between %" TCL_Z_MODIFIER "u and %" TCL_Z_MODIFIER "u\n", LOFF(open), LOFF(close)));
+    d = newDFA(v, cnfa, cm, &v->dfa1);
     assert(!(ISERR() && d != NULL));
     NOERR();
     for (begin = open; begin <= close; begin++) {
-	MDEBUG(("\nfind trying at %ld\n", LOFF(begin)));
+	MDEBUG(("\nfind trying at %" TCL_Z_MODIFIER "u\n", LOFF(begin)));
 	if (shorter) {
 	    end = shortest(v, d, begin, begin, v->stop, NULL, &hitend);
 	} else {
 	    end = longest(v, d, begin, v->stop, &hitend);
 	}
-	NOERR();
+	if (ISERR()) {
+	    freeDFA(d);
+	    return v->err;
+	}
 	if (hitend && cold == NULL) {
 	    cold = begin;
 	}
@@ -369,7 +382,7 @@ find(
 	}
     }
     assert(end != NULL);	/* search RE succeeded so loop should */
-    freedfa(d);
+    freeDFA(d);
 
     /*
      * And pin down details.
@@ -391,41 +404,40 @@ find(
     }
 
     /*
-     * Submatches.
+     * Find submatches.
      */
 
-    zapsubs(v->pmatch, v->nmatch);
-    return dissect(v, v->g->tree, begin, end);
+    zapallsubs(v->pmatch, v->nmatch);
+    return cdissect(v, v->g->tree, begin, end);
 }
 
 /*
- - cfind - find a match for the main NFA (with complications)
- ^ static int cfind(struct vars *, struct cnfa *, struct colormap *);
+ - complicatedFind - find a match for the main NFA (with complications)
+ ^ static int complicatedFind(struct vars *, struct cnfa *, struct colormap *);
  */
 static int
-cfind(
-    struct vars *v,
-    struct cnfa *cnfa,
-    struct colormap *cm)
+complicatedFind(
+    struct vars *const v,
+    struct cnfa *const cnfa,
+    struct colormap *const cm)
 {
-    struct dfa *s;
-    struct dfa *d;
+    struct dfa *s, *d;
     chr *cold = NULL; /* silence gcc 4 warning */
     int ret;
 
-    s = newdfa(v, &v->g->search, cm, &v->dfa1);
+    s = newDFA(v, &v->g->search, cm, &v->dfa1);
     NOERR();
-    d = newdfa(v, cnfa, cm, &v->dfa2);
+    d = newDFA(v, cnfa, cm, &v->dfa2);
     if (ISERR()) {
 	assert(d == NULL);
-	freedfa(s);
+	freeDFA(s);
 	return v->err;
     }
 
-    ret = cfindloop(v, cnfa, cm, d, s, &cold);
+    ret = complicatedFindLoop(v, d, s, &cold);
 
-    freedfa(d);
-    freedfa(s);
+    freeDFA(d);
+    freeDFA(s);
     NOERR();
     if (v->g->cflags&REG_EXPECT) {
 	assert(v->details != NULL);
@@ -440,36 +452,30 @@ cfind(
 }
 
 /*
- - cfindloop - the heart of cfind
- ^ static int cfindloop(struct vars *, struct cnfa *, struct colormap *,
+ - complicatedFindLoop - the heart of complicatedFind
+ ^ static int complicatedFindLoop(struct vars *,
  ^	struct dfa *, struct dfa *, chr **);
  */
 static int
-cfindloop(
-    struct vars *v,
-    struct cnfa *cnfa,
-    struct colormap *cm,
-    struct dfa *d,
-    struct dfa *s,
-    chr **coldp)		/* where to put coldstart pointer */
+complicatedFindLoop(
+    struct vars *const v,
+    struct dfa *const d,
+    struct dfa *const s,
+    chr **const coldp)		/* where to put coldstart pointer */
 {
-    chr *begin;
-    chr *end;
+    chr *begin, *end;
     chr *cold;
-    chr *open;			/* Open and close of range of possible
+    chr *open, *close;		/* Open and close of range of possible
 				 * starts */
-    chr *close;
-    chr *estart;
-    chr *estop;
-    int er;
+    chr *estart, *estop;
+    int er, hitend;
     int shorter = v->g->tree->flags&SHORTER;
-    int hitend;
 
     assert(d != NULL && s != NULL);
     cold = NULL;
     close = v->start;
     do {
-	MDEBUG(("\ncsearch at %ld\n", LOFF(close)));
+	MDEBUG(("\ncsearch at %" TCL_Z_MODIFIER "u\n", LOFF(close)));
 	close = shortest(v, s, close, close, v->stop, &cold, NULL);
 	if (close == NULL) {
 	    break;		/* NOTE BREAK */
@@ -477,9 +483,9 @@ cfindloop(
 	assert(cold != NULL);
 	open = cold;
 	cold = NULL;
-	MDEBUG(("cbetween %ld and %ld\n", LOFF(open), LOFF(close)));
+	MDEBUG(("cbetween %" TCL_Z_MODIFIER "u and %" TCL_Z_MODIFIER "u\n", LOFF(open), LOFF(close)));
 	for (begin = open; begin <= close; begin++) {
-	    MDEBUG(("\ncfind trying at %ld\n", LOFF(begin)));
+	    MDEBUG(("\ncomplicatedFind trying at %" TCL_Z_MODIFIER "u\n", LOFF(begin)));
 	    estart = begin;
 	    estop = v->stop;
 	    for (;;) {
@@ -495,9 +501,8 @@ cfindloop(
 		    break;	/* NOTE BREAK OUT */
 		}
 
-		MDEBUG(("tentative end %ld\n", LOFF(end)));
-		zapsubs(v->pmatch, v->nmatch);
-		zapmem(v, v->g->tree);
+		MDEBUG(("tentative end %" TCL_Z_MODIFIER "u\n", LOFF(end)));
+		zapallsubs(v->pmatch, v->nmatch);
 		er = cdissect(v, v->g->tree, begin, end);
 		if (er == REG_OKAY) {
 		    if (v->nmatch > 0) {
@@ -509,6 +514,7 @@ cfindloop(
 		}
 		if (er != REG_NOMATCH) {
 		    ERR(er);
+		    *coldp = cold;
 		    return er;
 		}
 		if ((shorter) ? end == estop : end == begin) {
@@ -533,61 +539,58 @@ cfindloop(
 }
 
 /*
- - zapsubs - initialize the subexpression matches to "no match"
- ^ static VOID zapsubs(regmatch_t *, size_t);
+ - zapallsubs - initialize all subexpression matches to "no match"
+ ^ static void zapallsubs(regmatch_t *, size_t);
  */
 static void
-zapsubs(
-    regmatch_t *p,
-    size_t n)
+zapallsubs(
+    regmatch_t *const p,
+    const size_t n)
 {
     size_t i;
 
     for (i = n-1; i > 0; i--) {
-	p[i].rm_so = -1;
-	p[i].rm_eo = -1;
+	p[i].rm_so = FREESTATE;
+	p[i].rm_eo = FREESTATE;
     }
 }
 
 /*
- - zapmem - initialize the retry memory of a subtree to zeros
- ^ static VOID zapmem(struct vars *, struct subre *);
+ - zaptreesubs - initialize subexpressions within subtree to "no match"
+ ^ static void zaptreesubs(struct vars *, struct subre *);
  */
 static void
-zapmem(
-    struct vars *v,
-    struct subre *t)
+zaptreesubs(
+    struct vars *const v,
+    struct subre *const t)
 {
-    if (t == NULL) {
-	return;
-    }
-
-    assert(v->mem != NULL);
-    v->mem[t->retry] = 0;
     if (t->op == '(') {
-	assert(t->subno > 0);
-	v->pmatch[t->subno].rm_so = -1;
-		v->pmatch[t->subno].rm_eo = -1;
+	size_t n = t->subno;
+	assert(n > 0);
+	if (n < v->nmatch) {
+	    v->pmatch[n].rm_so = FREESTATE;
+	    v->pmatch[n].rm_eo = FREESTATE;
+	}
     }
 
     if (t->left != NULL) {
-	zapmem(v, t->left);
+	zaptreesubs(v, t->left);
     }
     if (t->right != NULL) {
-	zapmem(v, t->right);
+	zaptreesubs(v, t->right);
     }
 }
 
 /*
- - subset - set any subexpression relevant to a successful subre
- ^ static VOID subset(struct vars *, struct subre *, chr *, chr *);
+ - subset - set subexpression match data for a successful subre
+ ^ static void subset(struct vars *, struct subre *, chr *, chr *);
  */
 static void
 subset(
-    struct vars *v,
-    struct subre *sub,
-    chr *begin,
-    chr *end)
+    struct vars *const v,
+    struct subre *const sub,
+    chr *const begin,
+    chr *const end)
 {
     int n = sub->subno;
 
@@ -602,204 +605,60 @@ subset(
 }
 
 /*
- - dissect - determine subexpression matches (uncomplicated case)
- ^ static int dissect(struct vars *, struct subre *, chr *, chr *);
- */
-static int			/* regexec return code */
-dissect(
-    struct vars *v,
-    struct subre *t,
-    chr *begin,			/* beginning of relevant substring */
-    chr *end)			/* end of same */
-{
-    assert(t != NULL);
-    MDEBUG(("dissect %ld-%ld\n", LOFF(begin), LOFF(end)));
-
-    switch (t->op) {
-    case '=':			/* terminal node */
-	assert(t->left == NULL && t->right == NULL);
-	return REG_OKAY;	/* no action, parent did the work */
-    case '|':			/* alternation */
-	assert(t->left != NULL);
-	return altdissect(v, t, begin, end);
-    case 'b':			/* back ref -- shouldn't be calling us! */
-	return REG_ASSERT;
-    case '.':			/* concatenation */
-	assert(t->left != NULL && t->right != NULL);
-	return condissect(v, t, begin, end);
-    case '(':			/* capturing */
-	assert(t->left != NULL && t->right == NULL);
-	assert(t->subno > 0);
-	subset(v, t, begin, end);
-	return dissect(v, t->left, begin, end);
-    default:
-	return REG_ASSERT;
-    }
-}
-
-/*
- - condissect - determine concatenation subexpression matches (uncomplicated)
- ^ static int condissect(struct vars *, struct subre *, chr *, chr *);
- */
-static int			/* regexec return code */
-condissect(
-    struct vars *v,
-    struct subre *t,
-    chr *begin,			/* beginning of relevant substring */
-    chr *end)			/* end of same */
-{
-    struct dfa *d;
-    struct dfa *d2;
-    chr *mid;
-    int i;
-    int shorter = (t->left->flags&SHORTER) ? 1 : 0;
-    chr *stop = (shorter) ? end : begin;
-
-    assert(t->op == '.');
-    assert(t->left != NULL && t->left->cnfa.nstates > 0);
-    assert(t->right != NULL && t->right->cnfa.nstates > 0);
-
-    d = newdfa(v, &t->left->cnfa, &v->g->cmap, &v->dfa1);
-    NOERR();
-    d2 = newdfa(v, &t->right->cnfa, &v->g->cmap, &v->dfa2);
-    if (ISERR()) {
-	assert(d2 == NULL);
-	freedfa(d);
-	return v->err;
-    }
-
-    /*
-     * Pick a tentative midpoint.
-     */
-
-    if (shorter) {
-	mid = shortest(v, d, begin, begin, end, NULL, NULL);
-    } else {
-	mid = longest(v, d, begin, end, NULL);
-    }
-    if (mid == NULL) {
-	freedfa(d);
-	freedfa(d2);
-	return REG_ASSERT;
-    }
-    MDEBUG(("tentative midpoint %ld\n", LOFF(mid)));
-
-    /*
-     * Iterate until satisfaction or failure.
-     */
-
-    while (longest(v, d2, mid, end, NULL) != end) {
-	/*
-	 * That midpoint didn't work, find a new one.
-	 */
-
-	if (mid == stop) {
-	    /*
-	     * All possibilities exhausted!
-	     */
-
-	    MDEBUG(("no midpoint!\n"));
-	    freedfa(d);
-	    freedfa(d2);
-	    return REG_ASSERT;
-	}
-	if (shorter) {
-	    mid = shortest(v, d, begin, mid+1, end, NULL, NULL);
-	} else {
-	    mid = longest(v, d, begin, mid-1, NULL);
-	}
-	if (mid == NULL) {
-	    /*
-	     * Failed to find a new one!
-	     */
-
-	    MDEBUG(("failed midpoint!\n"));
-	    freedfa(d);
-	    freedfa(d2);
-	    return REG_ASSERT;
-	}
-	MDEBUG(("new midpoint %ld\n", LOFF(mid)));
-    }
-
-    /*
-     * Satisfaction.
-     */
-
-    MDEBUG(("successful\n"));
-    freedfa(d);
-    freedfa(d2);
-    i = dissect(v, t->left, begin, mid);
-    if (i != REG_OKAY) {
-	return i;
-    }
-    return dissect(v, t->right, mid, end);
-}
-
-/*
- - altdissect - determine alternative subexpression matches (uncomplicated)
- ^ static int altdissect(struct vars *, struct subre *, chr *, chr *);
- */
-static int			/* regexec return code */
-altdissect(
-    struct vars *v,
-    struct subre *t,
-    chr *begin,			/* beginning of relevant substring */
-    chr *end)			/* end of same */
-{
-    struct dfa *d;
-    int i;
-
-    assert(t != NULL);
-    assert(t->op == '|');
-
-    for (i = 0; t != NULL; t = t->right, i++) {
-	MDEBUG(("trying %dth\n", i));
-	assert(t->left != NULL && t->left->cnfa.nstates > 0);
-	d = newdfa(v, &t->left->cnfa, &v->g->cmap, &v->dfa1);
-	if (ISERR()) {
-	    return v->err;
-	}
-	if (longest(v, d, begin, end, NULL) == end) {
-	    MDEBUG(("success\n"));
-	    freedfa(d);
-	    return dissect(v, t->left, begin, end);
-	}
-	freedfa(d);
-    }
-    return REG_ASSERT;		/* none of them matched?!? */
-}
-
-/*
- - cdissect - determine subexpression matches (with complications)
- * The retry memory stores the offset of the trial midpoint from begin, plus 1
- * so that 0 uniquely means "clean slate".
+ - cdissect - check backrefs and determine subexpression matches
+ * cdissect recursively processes a subre tree to check matching of backrefs
+ * and/or identify submatch boundaries for capture nodes.  The proposed match
+ * runs from "begin" to "end" (not including "end"), and we are basically
+ * "dissecting" it to see where the submatches are.
+ * Before calling any level of cdissect, the caller must have run the node's
+ * DFA and found that the proposed substring satisfies the DFA.  (We make
+ * the caller do that because in concatenation and iteration nodes, it's
+ * much faster to check all the substrings against the child DFAs before we
+ * recurse.)  Also, caller must have cleared subexpression match data via
+ * zaptreesubs (or zapallsubs at the top level).
  ^ static int cdissect(struct vars *, struct subre *, chr *, chr *);
  */
 static int			/* regexec return code */
 cdissect(
     struct vars *v,
     struct subre *t,
-    chr *begin,			/* beginning of relevant substring */
-    chr *end)			/* end of same */
+    chr *begin,		/* beginning of relevant substring */
+    chr *end)		/* end of same */
 {
     int er;
 
     assert(t != NULL);
-    MDEBUG(("cdissect %ld-%ld %c\n", LOFF(begin), LOFF(end), t->op));
+    MDEBUG(("cdissect %" TCL_Z_MODIFIER "u-%" TCL_Z_MODIFIER "u %c\n", LOFF(begin), LOFF(end), t->op));
 
     switch (t->op) {
     case '=':			/* terminal node */
 	assert(t->left == NULL && t->right == NULL);
-	return REG_OKAY;	/* no action, parent did the work */
-    case '|':			/* alternation */
-	assert(t->left != NULL);
-	return caltdissect(v, t, begin, end);
-    case 'b':			/* back ref -- shouldn't be calling us! */
+	er = REG_OKAY;		/* no action, parent did the work */
+	break;
+    case 'b':			/* back reference */
 	assert(t->left == NULL && t->right == NULL);
-	return cbrdissect(v, t, begin, end);
+	er = cbrdissect(v, t, begin, end);
+	break;
     case '.':			/* concatenation */
 	assert(t->left != NULL && t->right != NULL);
-	return ccondissect(v, t, begin, end);
+	if (t->left->flags & SHORTER) {/* reverse scan */
+	    er = crevcondissect(v, t, begin, end);
+	} else {
+	    er = ccondissect(v, t, begin, end);
+	}
+	break;
+    case '|':			/* alternation */
+	assert(t->left != NULL);
+	er = caltdissect(v, t, begin, end);
+	break;
+    case '*':			/* iteration */
+	assert(t->left != NULL);
+	if (t->left->flags & SHORTER) {/* reverse scan */
+	    er = creviterdissect(v, t, begin, end);
+	} else {
+	    er = citerdissect(v, t, begin, end);
+	}
+	break;
     case '(':			/* capturing */
 	assert(t->left != NULL && t->right == NULL);
 	assert(t->subno > 0);
@@ -807,65 +666,56 @@ cdissect(
 	if (er == REG_OKAY) {
 	    subset(v, t, begin, end);
 	}
-	return er;
+	break;
     default:
-	return REG_ASSERT;
+	er = REG_ASSERT;
+	break;
     }
+
+    /*
+     * We should never have a match failure unless backrefs lurk below;
+     * otherwise, either caller failed to check the DFA, or there's some
+     * inconsistency between the DFA and the node's innards.
+     */
+    assert(er != REG_NOMATCH || (t->flags & BACKR));
+
+    return er;
 }
 
 /*
- - ccondissect - concatenation subexpression matches (with complications)
- * The retry memory stores the offset of the trial midpoint from begin, plus 1
- * so that 0 uniquely means "clean slate".
+ - ccondissect - dissect match for concatenation node
  ^ static int ccondissect(struct vars *, struct subre *, chr *, chr *);
  */
 static int			/* regexec return code */
 ccondissect(
     struct vars *v,
     struct subre *t,
-    chr *begin,			/* beginning of relevant substring */
-    chr *end)			/* end of same */
+    chr *begin,		/* beginning of relevant substring */
+    chr *end)		/* end of same */
 {
     struct dfa *d, *d2;
     chr *mid;
-    int er;
 
     assert(t->op == '.');
     assert(t->left != NULL && t->left->cnfa.nstates > 0);
     assert(t->right != NULL && t->right->cnfa.nstates > 0);
+    assert(!(t->left->flags & SHORTER));
 
-    if (t->left->flags&SHORTER) { /* reverse scan */
-	return crevdissect(v, t, begin, end);
-    }
+    d = getsubdfa(v, t->left);
+    NOERR();
+    d2 = getsubdfa(v, t->right);
+    NOERR();
 
-    d = newdfa(v, &t->left->cnfa, &v->g->cmap, DOMALLOC);
-    if (ISERR()) {
-	return v->err;
-    }
-    d2 = newdfa(v, &t->right->cnfa, &v->g->cmap, DOMALLOC);
-    if (ISERR()) {
-	freedfa(d);
-	return v->err;
-    }
-    MDEBUG(("cconcat %d\n", t->retry));
+    MDEBUG(("cConcat %d\n", t->id));
 
     /*
      * Pick a tentative midpoint.
      */
-
-    if (v->mem[t->retry] == 0) {
-	mid = longest(v, d, begin, end, NULL);
-	if (mid == NULL) {
-	    freedfa(d);
-	    freedfa(d2);
-	    return REG_NOMATCH;
-	}
-	MDEBUG(("tentative midpoint %ld\n", LOFF(mid)));
-	v->mem[t->retry] = (mid - begin) + 1;
-    } else {
-	mid = begin + (v->mem[t->retry] - 1);
-	MDEBUG(("working midpoint %ld\n", LOFF(mid)));
+    mid = longest(v, d, begin, end, (int *) NULL);
+    if (mid == NULL) {
+	return REG_NOMATCH;
     }
+    MDEBUG(("tentative midpoint %" TCL_Z_MODIFIER "u\n", LOFF(mid)));
 
     /*
      * Iterate until satisfaction or failure.
@@ -877,23 +727,20 @@ ccondissect(
 	 */
 
 	if (longest(v, d2, mid, end, NULL) == end) {
-	    er = cdissect(v, t->left, begin, mid);
+	    int er = cdissect(v, t->left, begin, mid);
+
 	    if (er == REG_OKAY) {
 		er = cdissect(v, t->right, mid, end);
 		if (er == REG_OKAY) {
 		    /*
 		     * Satisfaction.
 		     */
-		    
+
 		    MDEBUG(("successful\n"));
-		    freedfa(d);
-		    freedfa(d2);
 		    return REG_OKAY;
 		}
 	    }
-	    if ((er != REG_OKAY) && (er != REG_NOMATCH)) {
-		freedfa(d);
-		freedfa(d2);
+	    if (er != REG_NOMATCH) {
 		return er;
 	    }
 	}
@@ -907,9 +754,7 @@ ccondissect(
 	     * All possibilities exhausted.
 	     */
 
-	    MDEBUG(("%d no midpoint\n", t->retry));
-	    freedfa(d);
-	    freedfa(d2);
+	    MDEBUG(("%d no midpoint\n", t->id));
 	    return REG_NOMATCH;
 	}
 	mid = longest(v, d, begin, mid-1, NULL);
@@ -918,73 +763,50 @@ ccondissect(
 	     * Failed to find a new one.
 	     */
 
-	    MDEBUG(("%d failed midpoint\n", t->retry));
-	    freedfa(d);
-	    freedfa(d2);
+	    MDEBUG(("%d failed midpoint\n", t->id));
 	    return REG_NOMATCH;
 	}
-	MDEBUG(("%d: new midpoint %ld\n", t->retry, LOFF(mid)));
-	v->mem[t->retry] = (mid - begin) + 1;
-	zapmem(v, t->left);
-	zapmem(v, t->right);
+	MDEBUG(("%d: new midpoint %" TCL_Z_MODIFIER "u\n", t->id, LOFF(mid)));
+	zaptreesubs(v, t->left);
+	zaptreesubs(v, t->right);
     }
 }
 
 /*
- - crevdissect - determine backref shortest-first subexpression matches
- * The retry memory stores the offset of the trial midpoint from begin, plus 1
- * so that 0 uniquely means "clean slate".
- ^ static int crevdissect(struct vars *, struct subre *, chr *, chr *);
+ - crevcondissect - dissect match for concatenation node, shortest-first
+ ^ static int crevcondissect(struct vars *, struct subre *, chr *, chr *);
  */
 static int			/* regexec return code */
-crevdissect(
+crevcondissect(
     struct vars *v,
     struct subre *t,
-    chr *begin,			/* beginning of relevant substring */
-    chr *end)			/* end of same */
+    chr *begin,		/* beginning of relevant substring */
+    chr *end)		/* end of same */
 {
-    struct dfa *d;
-    struct dfa *d2;
+    struct dfa *d, *d2;
     chr *mid;
-    int er;
 
     assert(t->op == '.');
     assert(t->left != NULL && t->left->cnfa.nstates > 0);
     assert(t->right != NULL && t->right->cnfa.nstates > 0);
     assert(t->left->flags&SHORTER);
 
-    /*
-     * Concatenation -- need to split the substring between parts.
-     */
+    d = getsubdfa(v, t->left);
+    NOERR();
+    d2 = getsubdfa(v, t->right);
+    NOERR();
 
-    d = newdfa(v, &t->left->cnfa, &v->g->cmap, DOMALLOC);
-    if (ISERR()) {
-	return v->err;
-    }
-    d2 = newdfa(v, &t->right->cnfa, &v->g->cmap, DOMALLOC);
-    if (ISERR()) {
-	freedfa(d);
-	return v->err;
-    }
-    MDEBUG(("crev %d\n", t->retry));
+    MDEBUG(("crevcon %d\n", t->id));
 
     /*
      * Pick a tentative midpoint.
      */
 
-    if (v->mem[t->retry] == 0) {
-	mid = shortest(v, d, begin, begin, end, NULL, NULL);
-	if (mid == NULL) {
-	    freedfa(d);
-	    freedfa(d2);
-	    return REG_NOMATCH;
-	}
-	MDEBUG(("tentative midpoint %ld\n", LOFF(mid)));
-	v->mem[t->retry] = (mid - begin) + 1;
-    } else {
-	mid = begin + (v->mem[t->retry] - 1);
-	MDEBUG(("working midpoint %ld\n", LOFF(mid)));
+    mid = shortest(v, d, begin, begin, end, (chr **) NULL, (int *) NULL);
+    if (mid == NULL) {
+	return REG_NOMATCH;
     }
+    MDEBUG(("tentative midpoint %" TCL_Z_MODIFIER "u\n", LOFF(mid)));
 
     /*
      * Iterate until satisfaction or failure.
@@ -996,7 +818,8 @@ crevdissect(
 	 */
 
 	if (longest(v, d2, mid, end, NULL) == end) {
-	    er = cdissect(v, t->left, begin, mid);
+	    int er = cdissect(v, t->left, begin, mid);
+
 	    if (er == REG_OKAY) {
 		er = cdissect(v, t->right, mid, end);
 		if (er == REG_OKAY) {
@@ -1005,14 +828,10 @@ crevdissect(
 		     */
 
 		    MDEBUG(("successful\n"));
-		    freedfa(d);
-		    freedfa(d2);
 		    return REG_OKAY;
 		}
 	    }
-	    if (er != REG_OKAY && er != REG_NOMATCH) {
-		freedfa(d);
-		freedfa(d2);
+	    if (er != REG_NOMATCH) {
 		return er;
 	    }
 	}
@@ -1026,9 +845,7 @@ crevdissect(
 	     * All possibilities exhausted.
 	     */
 
-	    MDEBUG(("%d no midpoint\n", t->retry));
-	    freedfa(d);
-	    freedfa(d2);
+	    MDEBUG(("%d no midpoint\n", t->id));
 	    return REG_NOMATCH;
 	}
 	mid = shortest(v, d, begin, mid+1, end, NULL, NULL);
@@ -1037,157 +854,487 @@ crevdissect(
 	     * Failed to find a new one.
 	     */
 
-	    MDEBUG(("%d failed midpoint\n", t->retry));
-	    freedfa(d);
-	    freedfa(d2);
+	    MDEBUG(("%d failed midpoint\n", t->id));
 	    return REG_NOMATCH;
 	}
-	MDEBUG(("%d: new midpoint %ld\n", t->retry, LOFF(mid)));
-	v->mem[t->retry] = (mid - begin) + 1;
-	zapmem(v, t->left);
-	zapmem(v, t->right);
+	MDEBUG(("%d: new midpoint %" TCL_Z_MODIFIER "u\n", t->id, LOFF(mid)));
+	zaptreesubs(v, t->left);
+	zaptreesubs(v, t->right);
     }
 }
 
 /*
- - cbrdissect - determine backref subexpression matches
+ - cbrdissect - dissect match for backref node
  ^ static int cbrdissect(struct vars *, struct subre *, chr *, chr *);
  */
 static int			/* regexec return code */
 cbrdissect(
     struct vars *v,
     struct subre *t,
-    chr *begin,			/* beginning of relevant substring */
-    chr *end)			/* end of same */
+    chr *begin,		/* beginning of relevant substring */
+    chr *end)		/* end of same */
 {
-    int i;
-    int n = t->subno;
-    size_t len;
-    chr *paren;
+    int n = t->subno, min = t->min, max = t->max;
+    size_t numreps;
+    size_t tlen;
+    size_t brlen;
+    chr *brstring;
     chr *p;
-    chr *stop;
-    int min = t->min;
-    int max = t->max;
 
     assert(t != NULL);
     assert(t->op == 'b');
     assert(n >= 0);
     assert((size_t)n < v->nmatch);
 
-    MDEBUG(("cbackref n%d %d{%d-%d}\n", t->retry, n, min, max));
+    MDEBUG(("cbackref n%d %d{%d-%d}\n", t->id, n, min, max));
 
-    if (v->pmatch[n].rm_so == -1) {
+    /* get the backreferenced string */
+    if (v->pmatch[n].rm_so == FREESTATE) {
+	return REG_NOMATCH;
+    }
+    brstring = v->start + v->pmatch[n].rm_so;
+    brlen = v->pmatch[n].rm_eo - v->pmatch[n].rm_so;
+
+    /* special cases for zero-length strings */
+    if (brlen == 0) {
+	/*
+	 * matches only if target is zero length, but any number of
+	 * repetitions can be considered to be present
+	 */
+	if (begin == end && min <= max) {
+	    MDEBUG(("cbackref matched trivially\n"));
+	    return REG_OKAY;
+	}
+	return REG_NOMATCH;
+    }
+    if (begin == end) {
+	/* matches only if zero repetitions are okay */
+	if (min == 0) {
+	    MDEBUG(("cbackref matched trivially\n"));
+	    return REG_OKAY;
+	}
 	return REG_NOMATCH;
     }
-    paren = v->start + v->pmatch[n].rm_so;
-    len = v->pmatch[n].rm_eo - v->pmatch[n].rm_so;
 
     /*
-     * No room to maneuver -- retries are pointless.
+     * check target length to see if it could possibly be an allowed number of
+     * repetitions of brstring
      */
 
-    if (v->mem[t->retry]) {
+    assert(end > begin);
+    tlen = end - begin;
+    if (tlen % brlen != 0) {
+	return REG_NOMATCH;
+    }
+    numreps = tlen / brlen;
+    if (numreps < (size_t)min || (numreps > (size_t)max && max != DUPINF)) {
 	return REG_NOMATCH;
     }
-    v->mem[t->retry] = 1;
+
+    /* okay, compare the actual string contents */
+    p = begin;
+    while (numreps-- > 0) {
+	if ((*v->g->compare) (brstring, p, brlen) != 0) {
+	    return REG_NOMATCH;
+	}
+	p += brlen;
+    }
+
+    MDEBUG(("cbackref matched\n"));
+    return REG_OKAY;
+}
+
+/*
+ - caltdissect - dissect match for alternation node
+ ^ static int caltdissect(struct vars *, struct subre *, chr *, chr *);
+ */
+static int			/* regexec return code */
+caltdissect(
+    struct vars *v,
+    struct subre *t,
+    chr *begin,		/* beginning of relevant substring */
+    chr *end)		/* end of same */
+{
+    struct dfa *d;
+    int er;
+
+    /* We loop, rather than tail-recurse, to handle a chain of alternatives */
+    while (t != NULL) {
+	assert(t->op == '|');
+	assert(t->left != NULL && t->left->cnfa.nstates > 0);
+
+	MDEBUG(("calt n%d\n", t->id));
+
+	d = getsubdfa(v, t->left);
+	NOERR();
+	if (longest(v, d, begin, end, (int *) NULL) == end) {
+	    MDEBUG(("calt matched\n"));
+	    er = cdissect(v, t->left, begin, end);
+	    if (er != REG_NOMATCH) {
+		return er;
+	    }
+	}
+
+	t = t->right;
+    }
+
+    return REG_NOMATCH;
+}
+
+/*
+ - citerdissect - dissect match for iteration node
+ ^ static int citerdissect(struct vars *, struct subre *, chr *, chr *);
+ */
+static int			/* regexec return code */
+citerdissect(struct vars * v,
+	     struct subre * t,
+	     chr *begin,	/* beginning of relevant substring */
+	     chr *end)		/* end of same */
+{
+    struct dfa *d;
+    chr	  **endpts;
+    chr	   *limit;
+    int		min_matches;
+    size_t	max_matches;
+    int		nverified;
+    int		k;
+    int		i;
+    int		er;
+
+    assert(t->op == '*');
+    assert(t->left != NULL && t->left->cnfa.nstates > 0);
+    assert(!(t->left->flags & SHORTER));
+    assert(begin <= end);
 
     /*
-     * Special-case zero-length string.
+     * If zero matches are allowed, and target string is empty, just declare
+     * victory.  OTOH, if target string isn't empty, zero matches can't work
+     * so we pretend the min is 1.
      */
-
-    if (len == 0) {
+    min_matches = t->min;
+    if (min_matches <= 0) {
 	if (begin == end) {
 	    return REG_OKAY;
 	}
-	return REG_NOMATCH;
+	min_matches = 1;
     }
 
     /*
-     * And too-short string.
+     * We need workspace to track the endpoints of each sub-match.  Normally
+     * we consider only nonzero-length sub-matches, so there can be at most
+     * end-begin of them.  However, if min is larger than that, we will also
+     * consider zero-length sub-matches in order to find enough matches.
+     *
+     * For convenience, endpts[0] contains the "begin" pointer and we store
+     * sub-match endpoints in endpts[1..max_matches].
      */
-
-    assert(end >= begin);
-    if ((size_t)(end - begin) < len) {
-	return REG_NOMATCH;
+    max_matches = end - begin;
+    if (max_matches > (size_t)t->max && t->max != DUPINF) {
+	max_matches = t->max;
+    }
+    if (max_matches < (size_t)min_matches)
+	max_matches = min_matches;
+    endpts = (chr **) MALLOC((max_matches + 1) * sizeof(chr *));
+    if (endpts == NULL)
+	return REG_ESPACE;
+    endpts[0] = begin;
+
+    d = getsubdfa(v, t->left);
+    if (ISERR()) {
+	FREE(endpts);
+	return v->err;
     }
-    stop = end - len;
+    MDEBUG(("citer %d\n", t->id));
 
     /*
-     * Count occurrences.
+     * Our strategy is to first find a set of sub-match endpoints that are
+     * valid according to the child node's DFA, and then recursively dissect
+     * each sub-match to confirm validity.  If any validity check fails,
+     * backtrack the last sub-match and try again.  And, when we next try for
+     * a validity check, we need not recheck any successfully verified
+     * sub-matches that we didn't move the endpoints of.  nverified remembers
+     * how many sub-matches are currently known okay.
      */
 
-    i = 0;
-    for (p = begin; p <= stop && (i < max || max == DUPINF); p += len) {
-	if ((*v->g->compare)(paren, p, len) != 0) {
-	    break;
+    /* initialize to consider first sub-match */
+    nverified = 0;
+    k = 1;
+    limit = end;
+
+    /* iterate until satisfaction or failure */
+    while (k > 0) {
+	/* try to find an endpoint for the k'th sub-match */
+	endpts[k] = longest(v, d, endpts[k - 1], limit, (int *) NULL);
+	if (endpts[k] == NULL) {
+	    /* no match possible, so see if we can shorten previous one */
+	    k--;
+	    goto backtrack;
 	}
-	i++;
-    }
-    MDEBUG(("cbackref found %d\n", i));
+	MDEBUG(("%d: working endpoint %d: %" TCL_Z_MODIFIER "u\n",
+		t->id, k, LOFF(endpts[k])));
 
-    /*
-     * And sort it out.
-     */
+	/* k'th sub-match can no longer be considered verified */
+	if (nverified >= k) {
+	    nverified = k - 1;
+	}
 
-    if (p != end) {		/* didn't consume all of it */
-	return REG_NOMATCH;
-    }
-    if (min <= i && (i <= max || max == DUPINF)) {
-	return REG_OKAY;
+	if (endpts[k] != end) {
+	    /* haven't reached end yet, try another iteration if allowed */
+	    if ((size_t)k >= max_matches) {
+		/* must try to shorten some previous match */
+		k--;
+		goto backtrack;
+	    }
+
+	    /* reject zero-length match unless necessary to achieve min */
+	    if (endpts[k] == endpts[k - 1] &&
+		(k >= min_matches || min_matches - k < end - endpts[k]))
+		goto backtrack;
+
+	    k++;
+	    limit = end;
+	    continue;
+	}
+
+	/*
+	 * We've identified a way to divide the string into k sub-matches
+	 * that works so far as the child DFA can tell.  If k is an allowed
+	 * number of matches, start the slow part: recurse to verify each
+	 * sub-match.  We always have k <= max_matches, needn't check that.
+	 */
+	if (k < min_matches) {
+	    goto backtrack;
+	}
+
+	MDEBUG(("%d: verifying %d..%d\n", t->id, nverified + 1, k));
+
+	for (i = nverified + 1; i <= k; i++) {
+	    zaptreesubs(v, t->left);
+	    er = cdissect(v, t->left, endpts[i - 1], endpts[i]);
+	    if (er == REG_OKAY) {
+		nverified = i;
+		continue;
+	    }
+	    if (er == REG_NOMATCH) {
+		break;
+	    }
+	    /* oops, something failed */
+	    FREE(endpts);
+	    return er;
+	}
+
+	if (i > k) {
+	    /* satisfaction */
+	    MDEBUG(("%d successful\n", t->id));
+	    FREE(endpts);
+	    return REG_OKAY;
+	}
+
+	/* match failed to verify, so backtrack */
+
+    backtrack:
+	/*
+	 * Must consider shorter versions of the current sub-match.  However,
+	 * we'll only ask for a zero-length match if necessary.
+	 */
+	while (k > 0) {
+	    chr	   *prev_end = endpts[k - 1];
+
+	    if (endpts[k] > prev_end) {
+		limit = endpts[k] - 1;
+		if (limit > prev_end ||
+		    (k < min_matches && min_matches - k >= end - prev_end)) {
+		    /* break out of backtrack loop, continue the outer one */
+		    break;
+		}
+	    }
+	    /* can't shorten k'th sub-match any more, consider previous one */
+	    k--;
+	}
     }
-    return REG_NOMATCH;		/* out of range */
+
+    /* all possibilities exhausted */
+    MDEBUG(("%d failed\n", t->id));
+    FREE(endpts);
+    return REG_NOMATCH;
 }
 
 /*
- - caltdissect - determine alternative subexpression matches (w. complications)
- ^ static int caltdissect(struct vars *, struct subre *, chr *, chr *);
+ - creviterdissect - dissect match for iteration node, shortest-first
+ ^ static int creviterdissect(struct vars *, struct subre *, chr *, chr *);
  */
 static int			/* regexec return code */
-caltdissect(
-    struct vars *v,
-    struct subre *t,
-    chr *begin,			/* beginning of relevant substring */
-    chr *end)			/* end of same */
+creviterdissect(struct vars * v,
+		struct subre * t,
+		chr *begin,	/* beginning of relevant substring */
+		chr *end)	/* end of same */
 {
     struct dfa *d;
-    int er;
-#define	UNTRIED	0		/* not yet tried at all */
-#define	TRYING	1		/* top matched, trying submatches */
-#define	TRIED	2		/* top didn't match or submatches exhausted */
+    chr	  **endpts;
+    chr	   *limit;
+    int		min_matches;
+    size_t	max_matches;
+    int		nverified;
+    int		k;
+    int		i;
+    int		er;
+
+    assert(t->op == '*');
+    assert(t->left != NULL && t->left->cnfa.nstates > 0);
+    assert(t->left->flags & SHORTER);
+    assert(begin <= end);
 
-    if (t == NULL) {
-	return REG_NOMATCH;
+    /*
+     * If zero matches are allowed, and target string is empty, just declare
+     * victory.  OTOH, if target string isn't empty, zero matches can't work
+     * so we pretend the min is 1.
+     */
+    min_matches = t->min;
+    if (min_matches <= 0) {
+	if (begin == end) {
+	    return REG_OKAY;
+	}
+	min_matches = 1;
     }
-    assert(t->op == '|');
-    if (v->mem[t->retry] == TRIED) {
-	return caltdissect(v, t->right, begin, end);
+
+    /*
+     * We need workspace to track the endpoints of each sub-match.  Normally
+     * we consider only nonzero-length sub-matches, so there can be at most
+     * end-begin of them.  However, if min is larger than that, we will also
+     * consider zero-length sub-matches in order to find enough matches.
+     *
+     * For convenience, endpts[0] contains the "begin" pointer and we store
+     * sub-match endpoints in endpts[1..max_matches].
+     */
+    max_matches = end - begin;
+    if (max_matches > (size_t)t->max && t->max != DUPINF)
+	max_matches = t->max;
+    if (max_matches < (size_t)min_matches)
+	max_matches = min_matches;
+    endpts = (chr **) MALLOC((max_matches + 1) * sizeof(chr *));
+    if (endpts == NULL)
+	return REG_ESPACE;
+    endpts[0] = begin;
+
+    d = getsubdfa(v, t->left);
+    if (ISERR()) {
+	FREE(endpts);
+	return v->err;
     }
+    MDEBUG(("creviter %d\n", t->id));
 
-    MDEBUG(("calt n%d\n", t->retry));
-    assert(t->left != NULL);
+    /*
+     * Our strategy is to first find a set of sub-match endpoints that are
+     * valid according to the child node's DFA, and then recursively dissect
+     * each sub-match to confirm validity.  If any validity check fails,
+     * backtrack the last sub-match and try again.  And, when we next try for
+     * a validity check, we need not recheck any successfully verified
+     * sub-matches that we didn't move the endpoints of.  nverified remembers
+     * how many sub-matches are currently known okay.
+     */
 
-    if (v->mem[t->retry] == UNTRIED) {
-	d = newdfa(v, &t->left->cnfa, &v->g->cmap, DOMALLOC);
-	if (ISERR()) {
-	    return v->err;
+    /* initialize to consider first sub-match */
+    nverified = 0;
+    k = 1;
+    limit = begin;
+
+    /* iterate until satisfaction or failure */
+    while (k > 0) {
+	/* disallow zero-length match unless necessary to achieve min */
+	if (limit == endpts[k - 1] &&
+	    limit != end &&
+	    (k >= min_matches || min_matches - k < end - limit))
+	    limit++;
+
+	/* if this is the last allowed sub-match, it must reach to the end */
+	if ((size_t)k >= max_matches) {
+	    limit = end;
+	}
+
+	/* try to find an endpoint for the k'th sub-match */
+	endpts[k] = shortest(v, d, endpts[k - 1], limit, end,
+			     (chr **) NULL, (int *) NULL);
+	if (endpts[k] == NULL) {
+	    /* no match possible, so see if we can lengthen previous one */
+	    k--;
+	    goto backtrack;
 	}
-	if (longest(v, d, begin, end, NULL) != end) {
-	    freedfa(d);
-	    v->mem[t->retry] = TRIED;
-	    return caltdissect(v, t->right, begin, end);
+	MDEBUG(("%d: working endpoint %d: %" TCL_Z_MODIFIER "u\n",
+		t->id, k, LOFF(endpts[k])));
+
+	/* k'th sub-match can no longer be considered verified */
+	if (nverified >= k) {
+	    nverified = k - 1;
 	}
-	freedfa(d);
-	MDEBUG(("calt matched\n"));
-	v->mem[t->retry] = TRYING;
-    }
 
-    er = cdissect(v, t->left, begin, end);
-    if (er != REG_NOMATCH) {
-	return er;
+	if (endpts[k] != end) {
+	    /* haven't reached end yet, try another iteration if allowed */
+	    if ((size_t)k >= max_matches) {
+		/* must try to lengthen some previous match */
+		k--;
+		goto backtrack;
+	    }
+
+	    k++;
+	    limit = endpts[k - 1];
+	    continue;
+	}
+
+	/*
+	 * We've identified a way to divide the string into k sub-matches
+	 * that works so far as the child DFA can tell.  If k is an allowed
+	 * number of matches, start the slow part: recurse to verify each
+	 * sub-match.  We always have k <= max_matches, needn't check that.
+	 */
+	if (k < min_matches) {
+	    goto backtrack;
+	}
+
+	MDEBUG(("%d: verifying %d..%d\n", t->id, nverified + 1, k));
+
+	for (i = nverified + 1; i <= k; i++) {
+	    zaptreesubs(v, t->left);
+	    er = cdissect(v, t->left, endpts[i - 1], endpts[i]);
+	    if (er == REG_OKAY) {
+		nverified = i;
+		continue;
+	    }
+	    if (er == REG_NOMATCH) {
+		break;
+	    }
+	    /* oops, something failed */
+	    FREE(endpts);
+	    return er;
+	}
+
+	if (i > k) {
+	    /* satisfaction */
+	    MDEBUG(("%d successful\n", t->id));
+	    FREE(endpts);
+	    return REG_OKAY;
+	}
+
+	/* match failed to verify, so backtrack */
+
+    backtrack:
+	/*
+	 * Must consider longer versions of the current sub-match.
+	 */
+	while (k > 0) {
+	    if (endpts[k] < end) {
+		limit = endpts[k] + 1;
+		/* break out of backtrack loop, continue the outer one */
+		break;
+	    }
+	    /* can't lengthen k'th sub-match any more, consider previous one */
+	    k--;
+	}
     }
 
-    v->mem[t->retry] = TRIED;
-    return caltdissect(v, t->right, begin, end);
+    /* all possibilities exhausted */
+    MDEBUG(("%d failed\n", t->id));
+    FREE(endpts);
+    return REG_NOMATCH;
 }
 
 #include "rege_dfa.c"
diff --git a/generic/regfree.c b/generic/regfree.c
index b0aaa70..71263ab 100644
--- a/generic/regfree.c
+++ b/generic/regfree.c
@@ -1,7 +1,7 @@
 /*
  * regfree - free an RE
  *
- * Copyright (c) 1998, 1999 Henry Spencer.  All rights reserved.
+ * Copyright © 1998, 1999 Henry Spencer.  All rights reserved.
  *
  * Development of this software was funded, in part, by Cray Research Inc.,
  * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
diff --git a/generic/regfronts.c b/generic/regfronts.c
index 5003297..3042558 100644
--- a/generic/regfronts.c
+++ b/generic/regfronts.c
@@ -4,7 +4,7 @@
  * Mostly for implementation of backward-compatibility kludges. Note that
  * these routines exist ONLY in char versions.
  *
- * Copyright (c) 1998, 1999 Henry Spencer.  All rights reserved.
+ * Copyright © 1998, 1999 Henry Spencer.  All rights reserved.
  *
  * Development of this software was funded, in part, by Cray Research Inc.,
  * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
@@ -39,7 +39,7 @@
 int
 regcomp(
     regex_t *re,
-    CONST char *str,
+    const char *str,
     int flags)
 {
     size_t len;
@@ -61,12 +61,12 @@ regcomp(
 int
 regexec(
     regex_t *re,
-    CONST char *str,
+    const char *str,
     size_t nmatch,
     regmatch_t pmatch[],
     int flags)
 {
-    CONST char *start;
+    const char *start;
     size_t len;
     int f = flags;
 
diff --git a/generic/regguts.h b/generic/regguts.h
index 7ed8ec1..e135874 100644
--- a/generic/regguts.h
+++ b/generic/regguts.h
@@ -39,15 +39,6 @@
  * Things that regcustom.h might override.
  */
 
-/* standard header files (NULL is a reasonable indicator for them) */
-#ifndef NULL
-#include <stdio.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <limits.h>
-#include <string.h>
-#endif
-
 /* assertions */
 #ifndef assert
 #ifndef REG_DEBUG
@@ -58,52 +49,18 @@
 #include <assert.h>
 #endif
 
-/* voids */
-#ifndef VOID
-#define	VOID	void		/* for function return values */
-#endif
-#ifndef DISCARD
-#define	DISCARD	void		/* for throwing values away */
-#endif
-#ifndef PVOID
-#define	PVOID	void *		/* generic pointer */
-#endif
-#ifndef VS
-#define	VS(x)	((void*)(x))	/* cast something to generic ptr */
-#endif
-#ifndef NOPARMS
-#define	NOPARMS	void		/* for empty parm lists */
-#endif
-
-/* const */
-#ifndef CONST
-#define	CONST	const		/* for old compilers, might be empty */
-#endif
-
-/* function-pointer declarator */
-#ifndef FUNCPTR
-#if __STDC__ >= 1
-#define	FUNCPTR(name, args)	(*name)args
-#else
-#define	FUNCPTR(name, args)	(*name)()
-#endif
-#endif
-
 /* memory allocation */
 #ifndef MALLOC
 #define	MALLOC(n)	malloc(n)
 #endif
 #ifndef REALLOC
-#define	REALLOC(p, n)	realloc(VS(p), n)
+#define	REALLOC(p, n)	realloc(p, n)
 #endif
 #ifndef FREE
-#define	FREE(p)		free(VS(p))
+#define	FREE(p)		free(p)
 #endif
 
 /* want size of a char in bits, and max value in bounded quantifiers */
-#ifndef CHAR_BIT
-#include <limits.h>
-#endif
 #ifndef _POSIX2_RE_DUP_MAX
 #define	_POSIX2_RE_DUP_MAX 255	/* normally from <limits.h> */
 #endif
@@ -113,12 +70,11 @@
  */
 
 #define	NOTREACHED	0
-#define	xxx		1
 
 #define	DUPMAX	_POSIX2_RE_DUP_MAX
 #define	DUPINF	(DUPMAX+1)
 
-#define	REMAGIC	0xfed7		/* magic number for main struct */
+#define	REMAGIC	0xFED7		/* magic number for main struct */
 
 /*
  * debugging facilities
@@ -203,7 +159,14 @@ struct colordesc {
     union tree *block;		/* block of solid color, if any */
 };
 
-/* the color map itself */
+/*
+ * The color map itself
+ *
+ * Much of the data in the colormap struct is only used at compile time.
+ * However, the bulk of the space usage is in the "tree" structure, so it's
+ * not clear that there's much point in converting the rest to a more compact
+ * form when compilation is finished.
+ */
 struct colormap {
     int magic;
 #define	CMMAGIC	0x876
@@ -240,11 +203,11 @@ struct colormap {
 
 /* Representation of a set of characters. */
 struct cvec {
-    int nchrs;			/* number of chrs */
-    int chrspace;		/* number of chrs possible */
+    size_t nchrs;		/* number of chrs */
+    size_t chrspace;		/* number of chrs possible */
     chr *chrs;			/* pointer to vector of chrs */
-    int nranges;		/* number of ranges (chr pairs) */
-    int rangespace;		/* number of chrs possible */
+    size_t nranges;		/* number of ranges (chr pairs) */
+    size_t rangespace;		/* number of chrs possible */
     chr *ranges;		/* pointer to vector of chr pairs */
 };
 
@@ -259,12 +222,11 @@ struct cvec {
 struct state;
 
 struct arc {
-    int type;
-#define	ARCFREE	'\0'
+    int type;			/* 0 if free, else an NFA arc type code */
     color co;
     struct state *from;		/* where it's from (and contained within) */
     struct state *to;		/* where it's to */
-    struct arc *outchain;	/* *from's outs chain or free chain */
+    struct arc *outchain;	/* link in *from's outs chain or free chain */
     struct arc *outchainRev;	/* back-link in *from's outs chain */
 #define	freechain outchain	/* we do not maintain "freechainRev" */
     struct arc *inchain;	/* *to's ins chain */
@@ -280,79 +242,112 @@ struct arcbatch {		/* for bulk allocation of arcs */
 };
 
 struct state {
-    int no;
-#define	FREESTATE	(-1)
+    size_t no;
+#define	FREESTATE	((size_t)-1)
     char flag;			/* marks special states */
-    int nins;			/* number of inarcs */
+    size_t nins;		/* number of inarcs */
     struct arc *ins;		/* chain of inarcs */
-    int nouts;			/* number of outarcs */
+    size_t nouts;		/* number of outarcs */
     struct arc *outs;		/* chain of outarcs */
     struct arc *free;		/* chain of free arcs */
     struct state *tmp;		/* temporary for traversal algorithms */
     struct state *next;		/* chain for traversing all */
     struct state *prev;		/* back chain */
     struct arcbatch oas;	/* first arcbatch, avoid malloc in easy case */
-    int noas;			/* number of arcs used in first arcbatch */
+    size_t noas;		/* number of arcs used in first arcbatch */
 };
 
 struct nfa {
-    struct state *pre;		/* pre-initial state */
+    struct state *pre;		/* preinitial state */
     struct state *init;		/* initial state */
     struct state *final;	/* final state */
-    struct state *post;		/* post-final state */
-    int nstates;		/* for numbering states */
+    struct state *post;		/* postfinal state */
+    size_t nstates;		/* for numbering states */
     struct state *states;	/* state-chain header */
     struct state *slast;	/* tail of the chain */
     struct state *free;		/* free list */
     struct colormap *cm;	/* the color map */
     color bos[2];		/* colors, if any, assigned to BOS and BOL */
     color eos[2];		/* colors, if any, assigned to EOS and EOL */
-    size_t size;		/* Current NFA size; differs from nstates as
-				 * it also counts the number of states created
-				 * by children of this state. */
     struct vars *v;		/* simplifies compile error reporting */
     struct nfa *parent;		/* parent NFA, if any */
 };
 
 /*
  * definitions for compacted NFA
+ *
+ * The main space savings in a compacted NFA is from making the arcs as small
+ * as possible.  We store only the transition color and next-state number for
+ * each arc.  The list of out arcs for each state is an array beginning at
+ * cnfa.states[statenumber], and terminated by a dummy carc struct with
+ * co == COLORLESS.
+ *
+ * The non-dummy carc structs are of two types: plain arcs and LACON arcs.
+ * Plain arcs just store the transition color number as "co".  LACON arcs
+ * store the lookahead constraint number plus cnfa.ncolors as "co".  LACON
+ * arcs can be distinguished from plain by testing for co >= cnfa.ncolors.
  */
 
 struct carc {
     color co;			/* COLORLESS is list terminator */
-    int to;			/* state number */
+    size_t to;			/* next-state number */
 };
 
 struct cnfa {
-    int nstates;		/* number of states */
+    size_t nstates;	/* number of states */
     int ncolors;		/* number of colors */
     int flags;
 #define	HASLACONS	01	/* uses lookahead constraints */
-    int pre;			/* setup state number */
-    int post;			/* teardown state number */
+    size_t pre;			/* setup state number */
+    size_t post;			/* teardown state number */
     color bos[2];		/* colors, if any, assigned to BOS and BOL */
     color eos[2];		/* colors, if any, assigned to EOS and EOL */
+    char *stflags;		/* vector of per-state flags bytes */
+#define CNFA_NOPROGRESS	01	/* flag bit for a no-progress state */
     struct carc **states;	/* vector of pointers to outarc lists */
+    /* states[n] are pointers into a single malloc'd array of arcs */
     struct carc *arcs;		/* the area for the lists */
 };
 #define	ZAPCNFA(cnfa)	((cnfa).nstates = 0)
 #define	NULLCNFA(cnfa)	((cnfa).nstates == 0)
 
 /*
- * Used to limit the maximum NFA size to something sane. [Bug 1810264]
+ * This symbol limits the transient heap space used by the regex compiler,
+ * and thereby also the maximum complexity of NFAs that we'll deal with.
+ * Currently we only count NFA states and arcs against this; the other
+ * transient data is generally not large enough to notice compared to those.
+ * Note that we do not charge anything for the final output data structures
+ * (the compacted NFA and the colormap).
  */
-
-#ifndef REG_MAX_STATES
-#   define REG_MAX_STATES	100000
+#ifndef REG_MAX_COMPILE_SPACE
+#define REG_MAX_COMPILE_SPACE  \
+	(100000 * sizeof(struct state) + 100000 * sizeof(struct arcbatch))
 #endif
 
 /*
  * subexpression tree
+ *
+ * "op" is one of:
+ *	'='  plain regex without interesting substructure (implemented as DFA)
+ *	'b'  back-reference (has no substructure either)
+ *	'('  capture node: captures the match of its single child
+ *	'.'  concatenation: matches a match for left, then a match for right
+ *	'|'  alternation: matches a match for left or a match for right
+ *	'*'  iteration: matches some number of matches of its single child
+ *
+ * Note: the right child of an alternation must be another alternation or
+ * NULL; hence, an N-way branch requires N alternation nodes, not N-1 as you
+ * might expect.  This could stand to be changed.  Actually I'd rather see
+ * a single alternation node with N children, but that will take revising
+ * the representation of struct subre.
+ *
+ * Note: when a backref is directly quantified, we stick the min/max counts
+ * into the backref rather than plastering an iteration node on top.  This is
+ * for efficiency: there is no need to search for possible division points.
  */
 
 struct subre {
-    char op;			/* '|', '.' (concat), 'b' (backref), '(',
-				 * '=' */
+    char op;			/* see type codes above */
     char flags;
 #define	LONGER	01		/* prefers longer match */
 #define	SHORTER	02		/* prefers shorter match */
@@ -368,10 +363,10 @@ struct subre {
 #define	PREF(f)	((f)&NOPROP)
 #define	PREF2(f1, f2)	((PREF(f1) != 0) ? PREF(f1) : PREF(f2))
 #define	COMBINE(f1, f2)	(UP((f1)|(f2)) | PREF2(f1, f2))
-    short retry;		/* index into retry memory */
+    short id;			/* ID of subre (1..ntree-1) */
     int subno;			/* subexpression number (for 'b' and '(') */
-    short min;			/* min repetitions, for backref only */
-    short max;			/* max repetitions, for backref only */
+    short min;			/* min repetitions for iteration or backref */
+    short max;			/* max repetitions for iteration or backref */
     struct subre *left;		/* left child, if any (also freelist chain) */
     struct subre *right;	/* right child, if any */
     struct state *begin;	/* outarcs from here... */
@@ -386,7 +381,7 @@ struct subre {
  */
 
 struct fns {
-    VOID FUNCPTR(free, (regex_t *));
+    void (*free) (regex_t *);
 };
 
 /*
@@ -395,17 +390,17 @@ struct fns {
 
 struct guts {
     int magic;
-#define	GUTSMAGIC	0xfed9
+#define	GUTSMAGIC	0xFED9
     int cflags;			/* copy of compile flags */
     long info;			/* copy of re_info */
     size_t nsub;		/* copy of re_nsub */
     struct subre *tree;
     struct cnfa search;		/* for fast preliminary search */
-    int ntree;
+    size_t ntree;		/* number of subre's, plus one */
     struct colormap cmap;
-    int FUNCPTR(compare, (CONST chr *, CONST chr *, size_t));
+    int (*compare) (const chr *, const chr *, size_t);
     struct subre *lacons;	/* lookahead-constraint vector */
-    int nlacons;		/* size of lacons */
+    size_t nlacons;		/* size of lacons */
 };
 
 /*
@@ -416,7 +411,7 @@ struct guts {
 #ifndef AllocVars
 #define AllocVars(vPtr) \
     struct vars var; \
-    register struct vars *vPtr = &var
+    struct vars *vPtr = &var
 #endif
 #ifndef FreeVars
 #define FreeVars(vPtr) ((void) 0)
diff --git a/generic/tcl.decls b/generic/tcl.decls
index 9716b32..bf18d2c 100644
--- a/generic/tcl.decls
+++ b/generic/tcl.decls
@@ -5,9 +5,9 @@
 #	This file is used to generate the tclDecls.h, tclPlatDecls.h
 #	and tclStubInit.c files.
 #
-# Copyright (c) 1998-1999 Scriptics Corporation.
-# Copyright (c) 2001, 2002 Kevin B. Kenny.  All rights reserved.
-# Copyright (c) 2007 Daniel A. Steffen <das@users.sourceforge.net>
+# Copyright © 1998-1999 Scriptics Corporation.
+# Copyright © 2001, 2002 Kevin B. Kenny.  All rights reserved.
+# Copyright © 2007 Daniel A. Steffen <das@users.sourceforge.net>
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
@@ -29,55 +29,55 @@ scspec EXTERN
 
 declare 0 {
     int Tcl_PkgProvideEx(Tcl_Interp *interp, const char *name,
-	    const char *version, ClientData clientData)
+	    const char *version, const void *clientData)
 }
 declare 1 {
-    CONST84_RETURN char *Tcl_PkgRequireEx(Tcl_Interp *interp,
+    const char *Tcl_PkgRequireEx(Tcl_Interp *interp,
 	    const char *name, const char *version, int exact,
-	    ClientData *clientDataPtr)
+	    void *clientDataPtr)
 }
 declare 2 {
-    void Tcl_Panic(const char *format, ...)
+    TCL_NORETURN void Tcl_Panic(const char *format, ...)
 }
 declare 3 {
-    char *Tcl_Alloc(unsigned int size)
+    void *Tcl_Alloc(size_t size)
 }
 declare 4 {
-    void Tcl_Free(char *ptr)
+    void Tcl_Free(void *ptr)
 }
 declare 5 {
-    char *Tcl_Realloc(char *ptr, unsigned int size)
+    void *Tcl_Realloc(void *ptr, size_t size)
 }
 declare 6 {
-    char *Tcl_DbCkalloc(unsigned int size, const char *file, int line)
+    void *Tcl_DbCkalloc(size_t size, const char *file, int line)
 }
 declare 7 {
-    void Tcl_DbCkfree(char *ptr, const char *file, int line)
+    void Tcl_DbCkfree(void *ptr, const char *file, int line)
 }
 declare 8 {
-    char *Tcl_DbCkrealloc(char *ptr, unsigned int size,
+    void *Tcl_DbCkrealloc(void *ptr, size_t size,
 	    const char *file, int line)
 }
 
-# Tcl_CreateFileHandler and Tcl_DeleteFileHandler are only available on unix,
+# Tcl_CreateFileHandler and Tcl_DeleteFileHandler are only available on Unix,
 # but they are part of the old generic interface, so we include them here for
 # compatibility reasons.
 
-declare 9 unix {
+declare 9 {
     void Tcl_CreateFileHandler(int fd, int mask, Tcl_FileProc *proc,
-	    ClientData clientData)
+	    void *clientData)
 }
-declare 10 unix {
+declare 10 {
     void Tcl_DeleteFileHandler(int fd)
 }
 declare 11 {
-    void Tcl_SetTimer(Tcl_Time *timePtr)
+    void Tcl_SetTimer(const Tcl_Time *timePtr)
 }
 declare 12 {
     void Tcl_Sleep(int ms)
 }
 declare 13 {
-    int Tcl_WaitForEvent(Tcl_Time *timePtr)
+    int Tcl_WaitForEvent(const Tcl_Time *timePtr)
 }
 declare 14 {
     int Tcl_AppendAllObjTypes(Tcl_Interp *interp, Tcl_Obj *objPtr)
@@ -86,14 +86,14 @@ declare 15 {
     void Tcl_AppendStringsToObj(Tcl_Obj *objPtr, ...)
 }
 declare 16 {
-    void Tcl_AppendToObj(Tcl_Obj *objPtr, const char *bytes, int length)
+    void Tcl_AppendToObj(Tcl_Obj *objPtr, const char *bytes, Tcl_Size length)
 }
 declare 17 {
-    Tcl_Obj *Tcl_ConcatObj(int objc, Tcl_Obj *const objv[])
+    Tcl_Obj *Tcl_ConcatObj(Tcl_Size objc, Tcl_Obj *const objv[])
 }
 declare 18 {
     int Tcl_ConvertToType(Tcl_Interp *interp, Tcl_Obj *objPtr,
-	    Tcl_ObjType *typePtr)
+	    const Tcl_ObjType *typePtr)
 }
 declare 19 {
     void Tcl_DbDecrRefCount(Tcl_Obj *objPtr, const char *file, int line)
@@ -104,29 +104,23 @@ declare 20 {
 declare 21 {
     int Tcl_DbIsShared(Tcl_Obj *objPtr, const char *file, int line)
 }
-declare 22 {
-    Tcl_Obj *Tcl_DbNewBooleanObj(int boolValue, const char *file, int line)
-}
 declare 23 {
-    Tcl_Obj *Tcl_DbNewByteArrayObj(const unsigned char *bytes, int length,
-	    const char *file, int line)
+    Tcl_Obj *Tcl_DbNewByteArrayObj(const unsigned char *bytes,
+	    Tcl_Size numBytes, const char *file, int line)
 }
 declare 24 {
     Tcl_Obj *Tcl_DbNewDoubleObj(double doubleValue, const char *file,
 	    int line)
 }
 declare 25 {
-    Tcl_Obj *Tcl_DbNewListObj(int objc, Tcl_Obj *const *objv,
+    Tcl_Obj *Tcl_DbNewListObj(Tcl_Size objc, Tcl_Obj *const *objv,
 	    const char *file, int line)
 }
-declare 26 {
-    Tcl_Obj *Tcl_DbNewLongObj(long longValue, const char *file, int line)
-}
 declare 27 {
     Tcl_Obj *Tcl_DbNewObj(const char *file, int line)
 }
 declare 28 {
-    Tcl_Obj *Tcl_DbNewStringObj(const char *bytes, int length,
+    Tcl_Obj *Tcl_DbNewStringObj(const char *bytes, Tcl_Size length,
 	    const char *file, int line)
 }
 declare 29 {
@@ -135,16 +129,6 @@ declare 29 {
 declare 30 {
     void TclFreeObj(Tcl_Obj *objPtr)
 }
-declare 31 {
-    int Tcl_GetBoolean(Tcl_Interp *interp, const char *src, int *boolPtr)
-}
-declare 32 {
-    int Tcl_GetBooleanFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
-	    int *boolPtr)
-}
-declare 33 {
-    unsigned char *Tcl_GetByteArrayFromObj(Tcl_Obj *objPtr, int *lengthPtr)
-}
 declare 34 {
     int Tcl_GetDouble(Tcl_Interp *interp, const char *src, double *doublePtr)
 }
@@ -152,10 +136,6 @@ declare 35 {
     int Tcl_GetDoubleFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
 	    double *doublePtr)
 }
-declare 36 {
-    int Tcl_GetIndexFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
-	    CONST84 char **tablePtr, const char *msg, int flags, int *indexPtr)
-}
 declare 37 {
     int Tcl_GetInt(Tcl_Interp *interp, const char *src, int *intPtr)
 }
@@ -166,10 +146,10 @@ declare 39 {
     int Tcl_GetLongFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr, long *longPtr)
 }
 declare 40 {
-    Tcl_ObjType *Tcl_GetObjType(const char *typeName)
+    const Tcl_ObjType *Tcl_GetObjType(const char *typeName)
 }
 declare 41 {
-    char *Tcl_GetStringFromObj(Tcl_Obj *objPtr, int *lengthPtr)
+    char *TclGetStringFromObj(Tcl_Obj *objPtr, void *lengthPtr)
 }
 declare 42 {
     void Tcl_InvalidateStringRep(Tcl_Obj *objPtr)
@@ -183,79 +163,54 @@ declare 44 {
 	    Tcl_Obj *objPtr)
 }
 declare 45 {
-    int Tcl_ListObjGetElements(Tcl_Interp *interp, Tcl_Obj *listPtr,
-	    int *objcPtr, Tcl_Obj ***objvPtr)
+    int TclListObjGetElements(Tcl_Interp *interp, Tcl_Obj *listPtr,
+	    void *objcPtr, Tcl_Obj ***objvPtr)
 }
 declare 46 {
-    int Tcl_ListObjIndex(Tcl_Interp *interp, Tcl_Obj *listPtr, int index,
+    int Tcl_ListObjIndex(Tcl_Interp *interp, Tcl_Obj *listPtr, Tcl_Size index,
 	    Tcl_Obj **objPtrPtr)
 }
 declare 47 {
-    int Tcl_ListObjLength(Tcl_Interp *interp, Tcl_Obj *listPtr,
-	    int *lengthPtr)
+    int TclListObjLength(Tcl_Interp *interp, Tcl_Obj *listPtr,
+	    void *lengthPtr)
 }
 declare 48 {
-    int Tcl_ListObjReplace(Tcl_Interp *interp, Tcl_Obj *listPtr, int first,
-	    int count, int objc, Tcl_Obj *const objv[])
-}
-declare 49 {
-    Tcl_Obj *Tcl_NewBooleanObj(int boolValue)
+    int Tcl_ListObjReplace(Tcl_Interp *interp, Tcl_Obj *listPtr, Tcl_Size first,
+	    Tcl_Size count, Tcl_Size objc, Tcl_Obj *const objv[])
 }
 declare 50 {
-    Tcl_Obj *Tcl_NewByteArrayObj(const unsigned char *bytes, int length)
+    Tcl_Obj *Tcl_NewByteArrayObj(const unsigned char *bytes, Tcl_Size numBytes)
 }
 declare 51 {
     Tcl_Obj *Tcl_NewDoubleObj(double doubleValue)
 }
-declare 52 {
-    Tcl_Obj *Tcl_NewIntObj(int intValue)
-}
 declare 53 {
-    Tcl_Obj *Tcl_NewListObj(int objc, Tcl_Obj *const objv[])
-}
-declare 54 {
-    Tcl_Obj *Tcl_NewLongObj(long longValue)
+    Tcl_Obj *Tcl_NewListObj(Tcl_Size objc, Tcl_Obj *const objv[])
 }
 declare 55 {
     Tcl_Obj *Tcl_NewObj(void)
 }
 declare 56 {
-    Tcl_Obj *Tcl_NewStringObj(const char *bytes, int length)
-}
-declare 57 {
-    void Tcl_SetBooleanObj(Tcl_Obj *objPtr, int boolValue)
+    Tcl_Obj *Tcl_NewStringObj(const char *bytes, Tcl_Size length)
 }
 declare 58 {
-    unsigned char *Tcl_SetByteArrayLength(Tcl_Obj *objPtr, int length)
+    unsigned char *Tcl_SetByteArrayLength(Tcl_Obj *objPtr, Tcl_Size numBytes)
 }
 declare 59 {
     void Tcl_SetByteArrayObj(Tcl_Obj *objPtr, const unsigned char *bytes,
-	    int length)
+	    Tcl_Size numBytes)
 }
 declare 60 {
     void Tcl_SetDoubleObj(Tcl_Obj *objPtr, double doubleValue)
 }
-declare 61 {
-    void Tcl_SetIntObj(Tcl_Obj *objPtr, int intValue)
-}
 declare 62 {
-    void Tcl_SetListObj(Tcl_Obj *objPtr, int objc, Tcl_Obj *const objv[])
-}
-declare 63 {
-    void Tcl_SetLongObj(Tcl_Obj *objPtr, long longValue)
+    void Tcl_SetListObj(Tcl_Obj *objPtr, Tcl_Size objc, Tcl_Obj *const objv[])
 }
 declare 64 {
-    void Tcl_SetObjLength(Tcl_Obj *objPtr, int length)
+    void Tcl_SetObjLength(Tcl_Obj *objPtr, Tcl_Size length)
 }
 declare 65 {
-    void Tcl_SetStringObj(Tcl_Obj *objPtr, const char *bytes, int length)
-}
-declare 66 {
-    void Tcl_AddErrorInfo(Tcl_Interp *interp, const char *message)
-}
-declare 67 {
-    void Tcl_AddObjErrorInfo(Tcl_Interp *interp, const char *message,
-	    int length)
+    void Tcl_SetStringObj(Tcl_Obj *objPtr, const char *bytes, Tcl_Size length)
 }
 declare 68 {
     void Tcl_AllowExceptions(Tcl_Interp *interp)
@@ -268,7 +223,7 @@ declare 70 {
 }
 declare 71 {
     Tcl_AsyncHandler Tcl_AsyncCreate(Tcl_AsyncProc *proc,
-	    ClientData clientData)
+	    void *clientData)
 }
 declare 72 {
     void Tcl_AsyncDelete(Tcl_AsyncHandler async)
@@ -282,109 +237,95 @@ declare 74 {
 declare 75 {
     int Tcl_AsyncReady(void)
 }
-declare 76 {
-    void Tcl_BackgroundError(Tcl_Interp *interp)
-}
-declare 77 {
-    char Tcl_Backslash(const char *src, int *readPtr)
-}
 declare 78 {
     int Tcl_BadChannelOption(Tcl_Interp *interp, const char *optionName,
 	    const char *optionList)
 }
 declare 79 {
     void Tcl_CallWhenDeleted(Tcl_Interp *interp, Tcl_InterpDeleteProc *proc,
-	    ClientData clientData)
+	    void *clientData)
 }
 declare 80 {
-    void Tcl_CancelIdleCall(Tcl_IdleProc *idleProc, ClientData clientData)
-}
-declare 81 {
-    int Tcl_Close(Tcl_Interp *interp, Tcl_Channel chan)
+    void Tcl_CancelIdleCall(Tcl_IdleProc *idleProc, void *clientData)
 }
 declare 82 {
     int Tcl_CommandComplete(const char *cmd)
 }
 declare 83 {
-    char *Tcl_Concat(int argc, CONST84 char *const *argv)
+    char *Tcl_Concat(Tcl_Size argc, const char *const *argv)
 }
 declare 84 {
-    int Tcl_ConvertElement(const char *src, char *dst, int flags)
+    Tcl_Size Tcl_ConvertElement(const char *src, char *dst, int flags)
 }
 declare 85 {
-    int Tcl_ConvertCountedElement(const char *src, int length, char *dst,
+    Tcl_Size Tcl_ConvertCountedElement(const char *src, Tcl_Size length, char *dst,
 	    int flags)
 }
 declare 86 {
-    int Tcl_CreateAlias(Tcl_Interp *slave, const char *slaveCmd,
-	    Tcl_Interp *target, const char *targetCmd, int argc,
-	    CONST84 char *const *argv)
+    int Tcl_CreateAlias(Tcl_Interp *childInterp, const char *childCmd,
+	    Tcl_Interp *target, const char *targetCmd, Tcl_Size argc,
+	    const char *const *argv)
 }
 declare 87 {
-    int Tcl_CreateAliasObj(Tcl_Interp *slave, const char *slaveCmd,
-	    Tcl_Interp *target, const char *targetCmd, int objc,
+    int Tcl_CreateAliasObj(Tcl_Interp *childInterp, const char *childCmd,
+	    Tcl_Interp *target, const char *targetCmd, Tcl_Size objc,
 	    Tcl_Obj *const objv[])
 }
 declare 88 {
-    Tcl_Channel Tcl_CreateChannel(Tcl_ChannelType *typePtr,
-	    const char *chanName, ClientData instanceData, int mask)
+    Tcl_Channel Tcl_CreateChannel(const Tcl_ChannelType *typePtr,
+	    const char *chanName, void *instanceData, int mask)
 }
 declare 89 {
     void Tcl_CreateChannelHandler(Tcl_Channel chan, int mask,
-	    Tcl_ChannelProc *proc, ClientData clientData)
+	    Tcl_ChannelProc *proc, void *clientData)
 }
 declare 90 {
     void Tcl_CreateCloseHandler(Tcl_Channel chan, Tcl_CloseProc *proc,
-	    ClientData clientData)
+	    void *clientData)
 }
 declare 91 {
     Tcl_Command Tcl_CreateCommand(Tcl_Interp *interp, const char *cmdName,
-	    Tcl_CmdProc *proc, ClientData clientData,
+	    Tcl_CmdProc *proc, void *clientData,
 	    Tcl_CmdDeleteProc *deleteProc)
 }
 declare 92 {
     void Tcl_CreateEventSource(Tcl_EventSetupProc *setupProc,
-	    Tcl_EventCheckProc *checkProc, ClientData clientData)
+	    Tcl_EventCheckProc *checkProc, void *clientData)
 }
 declare 93 {
-    void Tcl_CreateExitHandler(Tcl_ExitProc *proc, ClientData clientData)
+    void Tcl_CreateExitHandler(Tcl_ExitProc *proc, void *clientData)
 }
 declare 94 {
     Tcl_Interp *Tcl_CreateInterp(void)
 }
-declare 95 {
-    void Tcl_CreateMathFunc(Tcl_Interp *interp, const char *name,
-	    int numArgs, Tcl_ValueType *argTypes,
-	    Tcl_MathProc *proc, ClientData clientData)
-}
 declare 96 {
     Tcl_Command Tcl_CreateObjCommand(Tcl_Interp *interp,
 	    const char *cmdName,
-	    Tcl_ObjCmdProc *proc, ClientData clientData,
+	    Tcl_ObjCmdProc *proc, void *clientData,
 	    Tcl_CmdDeleteProc *deleteProc)
 }
 declare 97 {
-    Tcl_Interp *Tcl_CreateSlave(Tcl_Interp *interp, const char *slaveName,
+    Tcl_Interp *Tcl_CreateChild(Tcl_Interp *interp, const char *name,
 	    int isSafe)
 }
 declare 98 {
     Tcl_TimerToken Tcl_CreateTimerHandler(int milliseconds,
-	    Tcl_TimerProc *proc, ClientData clientData)
+	    Tcl_TimerProc *proc, void *clientData)
 }
 declare 99 {
-    Tcl_Trace Tcl_CreateTrace(Tcl_Interp *interp, int level,
-	    Tcl_CmdTraceProc *proc, ClientData clientData)
+    Tcl_Trace Tcl_CreateTrace(Tcl_Interp *interp, Tcl_Size level,
+	    Tcl_CmdTraceProc *proc, void *clientData)
 }
 declare 100 {
     void Tcl_DeleteAssocData(Tcl_Interp *interp, const char *name)
 }
 declare 101 {
     void Tcl_DeleteChannelHandler(Tcl_Channel chan, Tcl_ChannelProc *proc,
-	    ClientData clientData)
+	    void *clientData)
 }
 declare 102 {
     void Tcl_DeleteCloseHandler(Tcl_Channel chan, Tcl_CloseProc *proc,
-	    ClientData clientData)
+	    void *clientData)
 }
 declare 103 {
     int Tcl_DeleteCommand(Tcl_Interp *interp, const char *cmdName)
@@ -393,14 +334,14 @@ declare 104 {
     int Tcl_DeleteCommandFromToken(Tcl_Interp *interp, Tcl_Command command)
 }
 declare 105 {
-    void Tcl_DeleteEvents(Tcl_EventDeleteProc *proc, ClientData clientData)
+    void Tcl_DeleteEvents(Tcl_EventDeleteProc *proc, void *clientData)
 }
 declare 106 {
     void Tcl_DeleteEventSource(Tcl_EventSetupProc *setupProc,
-	    Tcl_EventCheckProc *checkProc, ClientData clientData)
+	    Tcl_EventCheckProc *checkProc, void *clientData)
 }
 declare 107 {
-    void Tcl_DeleteExitHandler(Tcl_ExitProc *proc, ClientData clientData)
+    void Tcl_DeleteExitHandler(Tcl_ExitProc *proc, void *clientData)
 }
 declare 108 {
     void Tcl_DeleteHashEntry(Tcl_HashEntry *entryPtr)
@@ -412,7 +353,7 @@ declare 110 {
     void Tcl_DeleteInterp(Tcl_Interp *interp)
 }
 declare 111 {
-    void Tcl_DetachPids(int numPids, Tcl_Pid *pidPtr)
+    void Tcl_DetachPids(Tcl_Size numPids, Tcl_Pid *pidPtr)
 }
 declare 112 {
     void Tcl_DeleteTimerHandler(Tcl_TimerToken token)
@@ -422,16 +363,16 @@ declare 113 {
 }
 declare 114 {
     void Tcl_DontCallWhenDeleted(Tcl_Interp *interp,
-	    Tcl_InterpDeleteProc *proc, ClientData clientData)
+	    Tcl_InterpDeleteProc *proc, void *clientData)
 }
 declare 115 {
     int Tcl_DoOneEvent(int flags)
 }
 declare 116 {
-    void Tcl_DoWhenIdle(Tcl_IdleProc *proc, ClientData clientData)
+    void Tcl_DoWhenIdle(Tcl_IdleProc *proc, void *clientData)
 }
 declare 117 {
-    char *Tcl_DStringAppend(Tcl_DString *dsPtr, const char *bytes, int length)
+    char *Tcl_DStringAppend(Tcl_DString *dsPtr, const char *bytes, Tcl_Size length)
 }
 declare 118 {
     char *Tcl_DStringAppendElement(Tcl_DString *dsPtr, const char *element)
@@ -452,7 +393,7 @@ declare 123 {
     void Tcl_DStringResult(Tcl_Interp *interp, Tcl_DString *dsPtr)
 }
 declare 124 {
-    void Tcl_DStringSetLength(Tcl_DString *dsPtr, int length)
+    void Tcl_DStringSetLength(Tcl_DString *dsPtr, Tcl_Size length)
 }
 declare 125 {
     void Tcl_DStringStartSublist(Tcl_DString *dsPtr)
@@ -461,25 +402,19 @@ declare 126 {
     int Tcl_Eof(Tcl_Channel chan)
 }
 declare 127 {
-    CONST84_RETURN char *Tcl_ErrnoId(void)
+    const char *Tcl_ErrnoId(void)
 }
 declare 128 {
-    CONST84_RETURN char *Tcl_ErrnoMsg(int err)
-}
-declare 129 {
-    int Tcl_Eval(Tcl_Interp *interp, const char *script)
+    const char *Tcl_ErrnoMsg(int err)
 }
 declare 130 {
     int Tcl_EvalFile(Tcl_Interp *interp, const char *fileName)
 }
-declare 131 {
-    int Tcl_EvalObj(Tcl_Interp *interp, Tcl_Obj *objPtr)
-}
 declare 132 {
-    void Tcl_EventuallyFree(ClientData clientData, Tcl_FreeProc *freeProc)
+    void Tcl_EventuallyFree(void *clientData, Tcl_FreeProc *freeProc)
 }
 declare 133 {
-    void Tcl_Exit(int status)
+    TCL_NORETURN void Tcl_Exit(int status)
 }
 declare 134 {
     int Tcl_ExposeCommand(Tcl_Interp *interp, const char *hiddenCmdToken,
@@ -513,9 +448,6 @@ declare 142 {
 declare 143 {
     void Tcl_Finalize(void)
 }
-declare 144 {
-    void Tcl_FindExecutable(const char *argv0)
-}
 declare 145 {
     Tcl_HashEntry *Tcl_FirstHashEntry(Tcl_HashTable *tablePtr,
 	    Tcl_HashSearch *searchPtr)
@@ -523,21 +455,13 @@ declare 145 {
 declare 146 {
     int Tcl_Flush(Tcl_Channel chan)
 }
-declare 147 {
-    void Tcl_FreeResult(Tcl_Interp *interp)
-}
-declare 148 {
-    int Tcl_GetAlias(Tcl_Interp *interp, const char *slaveCmd,
-	    Tcl_Interp **targetInterpPtr, CONST84 char **targetCmdPtr,
-	    int *argcPtr, CONST84 char ***argvPtr)
-}
 declare 149 {
-    int Tcl_GetAliasObj(Tcl_Interp *interp, const char *slaveCmd,
-	    Tcl_Interp **targetInterpPtr, CONST84 char **targetCmdPtr,
-	    int *objcPtr, Tcl_Obj ***objv)
+    int TclGetAliasObj(Tcl_Interp *interp, const char *childCmd,
+	    Tcl_Interp **targetInterpPtr, const char **targetCmdPtr,
+	    int *objcPtr, Tcl_Obj ***objvPtr)
 }
 declare 150 {
-    ClientData Tcl_GetAssocData(Tcl_Interp *interp, const char *name,
+    void *Tcl_GetAssocData(Tcl_Interp *interp, const char *name,
 	    Tcl_InterpDeleteProc **procPtr)
 }
 declare 151 {
@@ -545,47 +469,47 @@ declare 151 {
 	    int *modePtr)
 }
 declare 152 {
-    int Tcl_GetChannelBufferSize(Tcl_Channel chan)
+    Tcl_Size Tcl_GetChannelBufferSize(Tcl_Channel chan)
 }
 declare 153 {
     int Tcl_GetChannelHandle(Tcl_Channel chan, int direction,
-	    ClientData *handlePtr)
+	    void **handlePtr)
 }
 declare 154 {
-    ClientData Tcl_GetChannelInstanceData(Tcl_Channel chan)
+    void *Tcl_GetChannelInstanceData(Tcl_Channel chan)
 }
 declare 155 {
     int Tcl_GetChannelMode(Tcl_Channel chan)
 }
 declare 156 {
-    CONST84_RETURN char *Tcl_GetChannelName(Tcl_Channel chan)
+    const char *Tcl_GetChannelName(Tcl_Channel chan)
 }
 declare 157 {
     int Tcl_GetChannelOption(Tcl_Interp *interp, Tcl_Channel chan,
 	    const char *optionName, Tcl_DString *dsPtr)
 }
 declare 158 {
-    Tcl_ChannelType *Tcl_GetChannelType(Tcl_Channel chan)
+    const Tcl_ChannelType *Tcl_GetChannelType(Tcl_Channel chan)
 }
 declare 159 {
     int Tcl_GetCommandInfo(Tcl_Interp *interp, const char *cmdName,
 	    Tcl_CmdInfo *infoPtr)
 }
 declare 160 {
-    CONST84_RETURN char *Tcl_GetCommandName(Tcl_Interp *interp,
+    const char *Tcl_GetCommandName(Tcl_Interp *interp,
 	    Tcl_Command command)
 }
 declare 161 {
     int Tcl_GetErrno(void)
 }
 declare 162 {
-    CONST84_RETURN char *Tcl_GetHostName(void)
+    const char *Tcl_GetHostName(void)
 }
 declare 163 {
-    int Tcl_GetInterpPath(Tcl_Interp *askInterp, Tcl_Interp *slaveInterp)
+    int Tcl_GetInterpPath(Tcl_Interp *interp, Tcl_Interp *childInterp)
 }
 declare 164 {
-    Tcl_Interp *Tcl_GetMaster(Tcl_Interp *interp)
+    Tcl_Interp *Tcl_GetParent(Tcl_Interp *interp)
 }
 declare 165 {
     const char *Tcl_GetNameOfExecutable(void)
@@ -595,11 +519,11 @@ declare 166 {
 }
 
 # Tcl_GetOpenFile is only available on unix, but it is a part of the old
-# generic interface, so we inlcude it here for compatibility reasons.
+# generic interface, so we include it here for compatibility reasons.
 
-declare 167 unix {
-    int Tcl_GetOpenFile(Tcl_Interp *interp, const char *chanID, int forWriting,
-	    int checkUsage, ClientData *filePtr)
+declare 167 {
+    int Tcl_GetOpenFile(Tcl_Interp *interp, const char *chanID,
+	    int forWriting, int checkUsage, void **filePtr)
 }
 # Obsolete.  Should now use Tcl_FSGetPathType which is objectified
 # and therefore usually faster.
@@ -607,37 +531,24 @@ declare 168 {
     Tcl_PathType Tcl_GetPathType(const char *path)
 }
 declare 169 {
-    int Tcl_Gets(Tcl_Channel chan, Tcl_DString *dsPtr)
+    Tcl_Size Tcl_Gets(Tcl_Channel chan, Tcl_DString *dsPtr)
 }
 declare 170 {
-    int Tcl_GetsObj(Tcl_Channel chan, Tcl_Obj *objPtr)
+    Tcl_Size Tcl_GetsObj(Tcl_Channel chan, Tcl_Obj *objPtr)
 }
 declare 171 {
     int Tcl_GetServiceMode(void)
 }
 declare 172 {
-    Tcl_Interp *Tcl_GetSlave(Tcl_Interp *interp, const char *slaveName)
+    Tcl_Interp *Tcl_GetChild(Tcl_Interp *interp, const char *name)
 }
 declare 173 {
     Tcl_Channel Tcl_GetStdChannel(int type)
 }
-declare 174 {
-    CONST84_RETURN char *Tcl_GetStringResult(Tcl_Interp *interp)
-}
-declare 175 {
-    CONST84_RETURN char *Tcl_GetVar(Tcl_Interp *interp, const char *varName,
-	    int flags)
-}
 declare 176 {
-    CONST84_RETURN char *Tcl_GetVar2(Tcl_Interp *interp, const char *part1,
+    const char *Tcl_GetVar2(Tcl_Interp *interp, const char *part1,
 	    const char *part2, int flags)
 }
-declare 177 {
-    int Tcl_GlobalEval(Tcl_Interp *interp, const char *command)
-}
-declare 178 {
-    int Tcl_GlobalEvalObj(Tcl_Interp *interp, Tcl_Obj *objPtr)
-}
 declare 179 {
     int Tcl_HideCommand(Tcl_Interp *interp, const char *cmdName,
 	    const char *hiddenCmdToken)
@@ -662,11 +573,11 @@ declare 185 {
 }
 # Obsolete, use Tcl_FSJoinPath
 declare 186 {
-    char *Tcl_JoinPath(int argc, CONST84 char *const *argv,
+    char *Tcl_JoinPath(Tcl_Size argc, const char *const *argv,
 	    Tcl_DString *resultPtr)
 }
 declare 187 {
-    int Tcl_LinkVar(Tcl_Interp *interp, const char *varName, char *addr,
+    int Tcl_LinkVar(Tcl_Interp *interp, const char *varName, void *addr,
 	    int type)
 }
 
@@ -676,16 +587,13 @@ declare 187 {
 #  }
 
 declare 189 {
-    Tcl_Channel Tcl_MakeFileChannel(ClientData handle, int mode)
-}
-declare 190 {
-    int Tcl_MakeSafe(Tcl_Interp *interp)
+    Tcl_Channel Tcl_MakeFileChannel(void *handle, int mode)
 }
 declare 191 {
-    Tcl_Channel Tcl_MakeTcpClientChannel(ClientData tcpSocket)
+    Tcl_Channel Tcl_MakeTcpClientChannel(void *tcpSocket)
 }
 declare 192 {
-    char *Tcl_Merge(int argc, CONST84 char *const *argv)
+    char *Tcl_Merge(Tcl_Size argc, const char *const *argv)
 }
 declare 193 {
     Tcl_HashEntry *Tcl_NextHashEntry(Tcl_HashSearch *searchPtr)
@@ -702,8 +610,8 @@ declare 196 {
 	    Tcl_Obj *part2Ptr, Tcl_Obj *newValuePtr, int flags)
 }
 declare 197 {
-    Tcl_Channel Tcl_OpenCommandChannel(Tcl_Interp *interp, int argc,
-	    CONST84 char **argv, int flags)
+    Tcl_Channel Tcl_OpenCommandChannel(Tcl_Interp *interp, Tcl_Size argc,
+	    const char **argv, int flags)
 }
 # This is obsolete, use Tcl_FSOpenFileChannel
 declare 198 {
@@ -712,15 +620,15 @@ declare 198 {
 }
 declare 199 {
     Tcl_Channel Tcl_OpenTcpClient(Tcl_Interp *interp, int port,
-	    const char *address, const char *myaddr, int myport, int async)
+	    const char *address, const char *myaddr, int myport, int flags)
 }
 declare 200 {
     Tcl_Channel Tcl_OpenTcpServer(Tcl_Interp *interp, int port,
 	    const char *host, Tcl_TcpAcceptProc *acceptProc,
-	    ClientData callbackData)
+	    void *callbackData)
 }
 declare 201 {
-    void Tcl_Preserve(ClientData data)
+    void Tcl_Preserve(void *data)
 }
 declare 202 {
     void Tcl_PrintDouble(Tcl_Interp *interp, double value, char *dst)
@@ -729,13 +637,13 @@ declare 203 {
     int Tcl_PutEnv(const char *assignment)
 }
 declare 204 {
-    CONST84_RETURN char *Tcl_PosixError(Tcl_Interp *interp)
+    const char *Tcl_PosixError(Tcl_Interp *interp)
 }
 declare 205 {
-    void Tcl_QueueEvent(Tcl_Event *evPtr, Tcl_QueuePosition position)
+    void Tcl_QueueEvent(Tcl_Event *evPtr, int position)
 }
 declare 206 {
-    int Tcl_Read(Tcl_Channel chan, char *bufPtr, int toRead)
+    Tcl_Size Tcl_Read(Tcl_Channel chan, char *bufPtr, Tcl_Size toRead)
 }
 declare 207 {
     void Tcl_ReapDetachedProcs(void)
@@ -750,7 +658,7 @@ declare 210 {
     void Tcl_RegisterChannel(Tcl_Interp *interp, Tcl_Channel chan)
 }
 declare 211 {
-    void Tcl_RegisterObjType(Tcl_ObjType *typePtr)
+    void Tcl_RegisterObjType(const Tcl_ObjType *typePtr)
 }
 declare 212 {
     Tcl_RegExp Tcl_RegExpCompile(Tcl_Interp *interp, const char *pattern)
@@ -764,24 +672,20 @@ declare 214 {
 	    const char *pattern)
 }
 declare 215 {
-    void Tcl_RegExpRange(Tcl_RegExp regexp, int index,
-	    CONST84 char **startPtr, CONST84 char **endPtr)
+    void Tcl_RegExpRange(Tcl_RegExp regexp, Tcl_Size index,
+	    const char **startPtr, const char **endPtr)
 }
 declare 216 {
-    void Tcl_Release(ClientData clientData)
+    void Tcl_Release(void *clientData)
 }
 declare 217 {
     void Tcl_ResetResult(Tcl_Interp *interp)
 }
 declare 218 {
-    int Tcl_ScanElement(const char *src, int *flagPtr)
+    Tcl_Size Tcl_ScanElement(const char *src, int *flagPtr)
 }
 declare 219 {
-    int Tcl_ScanCountedElement(const char *src, int length, int *flagPtr)
-}
-# Obsolete
-declare 220 {
-    int Tcl_SeekOld(Tcl_Channel chan, int offset, int mode)
+    Tcl_Size Tcl_ScanCountedElement(const char *src, Tcl_Size length, int *flagPtr)
 }
 declare 221 {
     int Tcl_ServiceAll(void)
@@ -791,10 +695,10 @@ declare 222 {
 }
 declare 223 {
     void Tcl_SetAssocData(Tcl_Interp *interp, const char *name,
-	    Tcl_InterpDeleteProc *proc, ClientData clientData)
+	    Tcl_InterpDeleteProc *proc, void *clientData)
 }
 declare 224 {
-    void Tcl_SetChannelBufferSize(Tcl_Channel chan, int sz)
+    void Tcl_SetChannelBufferSize(Tcl_Channel chan, Tcl_Size sz)
 }
 declare 225 {
     int Tcl_SetChannelOption(Tcl_Interp *interp, Tcl_Channel chan,
@@ -811,17 +715,10 @@ declare 228 {
     void Tcl_SetErrorCode(Tcl_Interp *interp, ...)
 }
 declare 229 {
-    void Tcl_SetMaxBlockTime(Tcl_Time *timePtr)
-}
-declare 230 {
-    void Tcl_SetPanicProc(Tcl_PanicProc *panicProc)
+    void Tcl_SetMaxBlockTime(const Tcl_Time *timePtr)
 }
 declare 231 {
-    int Tcl_SetRecursionLimit(Tcl_Interp *interp, int depth)
-}
-declare 232 {
-    void Tcl_SetResult(Tcl_Interp *interp, char *result,
-	    Tcl_FreeProc *freeProc)
+    Tcl_Size Tcl_SetRecursionLimit(Tcl_Interp *interp, Tcl_Size depth)
 }
 declare 233 {
     int Tcl_SetServiceMode(int mode)
@@ -835,56 +732,37 @@ declare 235 {
 declare 236 {
     void Tcl_SetStdChannel(Tcl_Channel channel, int type)
 }
-declare 237 {
-    CONST84_RETURN char *Tcl_SetVar(Tcl_Interp *interp, const char *varName,
-	    const char *newValue, int flags)
-}
 declare 238 {
-    CONST84_RETURN char *Tcl_SetVar2(Tcl_Interp *interp, const char *part1,
+    const char *Tcl_SetVar2(Tcl_Interp *interp, const char *part1,
 	    const char *part2, const char *newValue, int flags)
 }
 declare 239 {
-    CONST84_RETURN char *Tcl_SignalId(int sig)
+    const char *Tcl_SignalId(int sig)
 }
 declare 240 {
-    CONST84_RETURN char *Tcl_SignalMsg(int sig)
+    const char *Tcl_SignalMsg(int sig)
 }
 declare 241 {
     void Tcl_SourceRCFile(Tcl_Interp *interp)
 }
 declare 242 {
-    int Tcl_SplitList(Tcl_Interp *interp, const char *listStr, int *argcPtr,
-	    CONST84 char ***argvPtr)
+    int TclSplitList(Tcl_Interp *interp, const char *listStr, void *argcPtr,
+	    const char ***argvPtr)
 }
 # Obsolete, use Tcl_FSSplitPath
 declare 243 {
-    void Tcl_SplitPath(const char *path, int *argcPtr, CONST84 char ***argvPtr)
-}
-declare 244 {
-    void Tcl_StaticPackage(Tcl_Interp *interp, const char *pkgName,
-	    Tcl_PackageInitProc *initProc, Tcl_PackageInitProc *safeInitProc)
-}
-declare 245 {
-    int Tcl_StringMatch(const char *str, const char *pattern)
-}
-# Obsolete
-declare 246 {
-    int Tcl_TellOld(Tcl_Channel chan)
-}
-declare 247 {
-    int Tcl_TraceVar(Tcl_Interp *interp, const char *varName, int flags,
-	    Tcl_VarTraceProc *proc, ClientData clientData)
+    void TclSplitPath(const char *path, void *argcPtr, const char ***argvPtr)
 }
 declare 248 {
     int Tcl_TraceVar2(Tcl_Interp *interp, const char *part1, const char *part2,
-	    int flags, Tcl_VarTraceProc *proc, ClientData clientData)
+	    int flags, Tcl_VarTraceProc *proc, void *clientData)
 }
 declare 249 {
     char *Tcl_TranslateFileName(Tcl_Interp *interp, const char *name,
 	    Tcl_DString *bufferPtr)
 }
 declare 250 {
-    int Tcl_Ungets(Tcl_Channel chan, const char *str, int len, int atHead)
+    Tcl_Size Tcl_Ungets(Tcl_Channel chan, const char *str, Tcl_Size len, int atHead)
 }
 declare 251 {
     void Tcl_UnlinkVar(Tcl_Interp *interp, const char *varName)
@@ -892,29 +770,18 @@ declare 251 {
 declare 252 {
     int Tcl_UnregisterChannel(Tcl_Interp *interp, Tcl_Channel chan)
 }
-declare 253 {
-    int Tcl_UnsetVar(Tcl_Interp *interp, const char *varName, int flags)
-}
 declare 254 {
     int Tcl_UnsetVar2(Tcl_Interp *interp, const char *part1, const char *part2,
 	    int flags)
 }
-declare 255 {
-    void Tcl_UntraceVar(Tcl_Interp *interp, const char *varName, int flags,
-	    Tcl_VarTraceProc *proc, ClientData clientData)
-}
 declare 256 {
     void Tcl_UntraceVar2(Tcl_Interp *interp, const char *part1,
 	    const char *part2, int flags, Tcl_VarTraceProc *proc,
-	    ClientData clientData)
+	    void *clientData)
 }
 declare 257 {
     void Tcl_UpdateLinkedVar(Tcl_Interp *interp, const char *varName)
 }
-declare 258 {
-    int Tcl_UpVar(Tcl_Interp *interp, const char *frameName,
-	    const char *varName, const char *localName, int flags)
-}
 declare 259 {
     int Tcl_UpVar2(Tcl_Interp *interp, const char *frameName, const char *part1,
 	    const char *part2, const char *localName, int flags)
@@ -922,20 +789,16 @@ declare 259 {
 declare 260 {
     int Tcl_VarEval(Tcl_Interp *interp, ...)
 }
-declare 261 {
-    ClientData Tcl_VarTraceInfo(Tcl_Interp *interp, const char *varName,
-	    int flags, Tcl_VarTraceProc *procPtr, ClientData prevClientData)
-}
 declare 262 {
-    ClientData Tcl_VarTraceInfo2(Tcl_Interp *interp, const char *part1,
+    void *Tcl_VarTraceInfo2(Tcl_Interp *interp, const char *part1,
 	    const char *part2, int flags, Tcl_VarTraceProc *procPtr,
-	    ClientData prevClientData)
+	    void *prevClientData)
 }
 declare 263 {
-    int Tcl_Write(Tcl_Channel chan, const char *s, int slen)
+    Tcl_Size Tcl_Write(Tcl_Channel chan, const char *s, Tcl_Size slen)
 }
 declare 264 {
-    void Tcl_WrongNumArgs(Tcl_Interp *interp, int objc,
+    void Tcl_WrongNumArgs(Tcl_Interp *interp, Tcl_Size objc,
 	    Tcl_Obj *const objv[], const char *message)
 }
 declare 265 {
@@ -944,49 +807,21 @@ declare 265 {
 declare 266 {
     void Tcl_ValidateAllMemory(const char *file, int line)
 }
-declare 267 {
-    void Tcl_AppendResultVA(Tcl_Interp *interp, va_list argList)
-}
-declare 268 {
-    void Tcl_AppendStringsToObjVA(Tcl_Obj *objPtr, va_list argList)
-}
 declare 269 {
     char *Tcl_HashStats(Tcl_HashTable *tablePtr)
 }
 declare 270 {
-    CONST84_RETURN char *Tcl_ParseVar(Tcl_Interp *interp, const char *start,
-	    CONST84 char **termPtr)
-}
-declare 271 {
-    CONST84_RETURN char *Tcl_PkgPresent(Tcl_Interp *interp, const char *name,
-	    const char *version, int exact)
+    const char *Tcl_ParseVar(Tcl_Interp *interp, const char *start,
+	    const char **termPtr)
 }
 declare 272 {
-    CONST84_RETURN char *Tcl_PkgPresentEx(Tcl_Interp *interp,
+    const char *Tcl_PkgPresentEx(Tcl_Interp *interp,
 	    const char *name, const char *version, int exact,
-	    ClientData *clientDataPtr)
-}
-declare 273 {
-    int Tcl_PkgProvide(Tcl_Interp *interp, const char *name,
-	    const char *version)
-}
-# TIP #268: The internally used new Require function is in slot 573.
-declare 274 {
-    CONST84_RETURN char *Tcl_PkgRequire(Tcl_Interp *interp, const char *name,
-	    const char *version, int exact)
-}
-declare 275 {
-    void Tcl_SetErrorCodeVA(Tcl_Interp *interp, va_list argList)
-}
-declare 276 {
-    int  Tcl_VarEvalVA(Tcl_Interp *interp, va_list argList)
+	    void *clientDataPtr)
 }
 declare 277 {
     Tcl_Pid Tcl_WaitPid(Tcl_Pid pid, int *statPtr, int options)
 }
-declare 278 {
-    void Tcl_PanicVA(const char *format, va_list argList)
-}
 declare 279 {
     void Tcl_GetVersion(int *major, int *minor, int *patchLevel, int *type)
 }
@@ -1010,7 +845,7 @@ declare 280 {
 
 declare 281 {
     Tcl_Channel Tcl_StackChannel(Tcl_Interp *interp,
-	    Tcl_ChannelType *typePtr, ClientData instanceData,
+	    const Tcl_ChannelType *typePtr, void *instanceData,
 	    int mask, Tcl_Channel prevChan)
 }
 declare 282 {
@@ -1025,9 +860,11 @@ declare 284 {
     void Tcl_SetMainLoop(Tcl_MainLoopProc *proc)
 }
 
-# Reserved for future use (8.0.x vs. 8.1)
-#  declare 285 {
-#  }
+declare 285 {
+    int Tcl_GetAliasObj(Tcl_Interp *interp, const char *childCmd,
+	    Tcl_Interp **targetInterpPtr, const char **targetCmdPtr,
+	    Tcl_Size *objcPtr, Tcl_Obj ***objvPtr)
+}
 
 # Added in 8.1:
 
@@ -1038,43 +875,40 @@ declare 287 {
     Tcl_Encoding Tcl_CreateEncoding(const Tcl_EncodingType *typePtr)
 }
 declare 288 {
-    void Tcl_CreateThreadExitHandler(Tcl_ExitProc *proc, ClientData clientData)
+    void Tcl_CreateThreadExitHandler(Tcl_ExitProc *proc, void *clientData)
 }
 declare 289 {
-    void Tcl_DeleteThreadExitHandler(Tcl_ExitProc *proc, ClientData clientData)
-}
-declare 290 {
-    void Tcl_DiscardResult(Tcl_SavedResult *statePtr)
+    void Tcl_DeleteThreadExitHandler(Tcl_ExitProc *proc, void *clientData)
 }
 declare 291 {
-    int Tcl_EvalEx(Tcl_Interp *interp, const char *script, int numBytes,
+    int Tcl_EvalEx(Tcl_Interp *interp, const char *script, Tcl_Size numBytes,
 	    int flags)
 }
 declare 292 {
-    int Tcl_EvalObjv(Tcl_Interp *interp, int objc, Tcl_Obj *const objv[],
+    int Tcl_EvalObjv(Tcl_Interp *interp, Tcl_Size objc, Tcl_Obj *const objv[],
 	    int flags)
 }
 declare 293 {
     int Tcl_EvalObjEx(Tcl_Interp *interp, Tcl_Obj *objPtr, int flags)
 }
 declare 294 {
-    void Tcl_ExitThread(int status)
+    TCL_NORETURN void Tcl_ExitThread(int status)
 }
 declare 295 {
     int Tcl_ExternalToUtf(Tcl_Interp *interp, Tcl_Encoding encoding,
-	    const char *src, int srcLen, int flags,
-	    Tcl_EncodingState *statePtr, char *dst, int dstLen,
+	    const char *src, Tcl_Size srcLen, int flags,
+	    Tcl_EncodingState *statePtr, char *dst, Tcl_Size dstLen,
 	    int *srcReadPtr, int *dstWrotePtr, int *dstCharsPtr)
 }
 declare 296 {
     char *Tcl_ExternalToUtfDString(Tcl_Encoding encoding,
-	    const char *src, int srcLen, Tcl_DString *dsPtr)
+	    const char *src, Tcl_Size srcLen, Tcl_DString *dsPtr)
 }
 declare 297 {
     void Tcl_FinalizeThread(void)
 }
 declare 298 {
-    void Tcl_FinalizeNotifier(ClientData clientData)
+    void Tcl_FinalizeNotifier(void *clientData)
 }
 declare 299 {
     void Tcl_FreeEncoding(Tcl_Encoding encoding)
@@ -1086,25 +920,25 @@ declare 301 {
     Tcl_Encoding Tcl_GetEncoding(Tcl_Interp *interp, const char *name)
 }
 declare 302 {
-    CONST84_RETURN char *Tcl_GetEncodingName(Tcl_Encoding encoding)
+    const char *Tcl_GetEncodingName(Tcl_Encoding encoding)
 }
 declare 303 {
     void Tcl_GetEncodingNames(Tcl_Interp *interp)
 }
 declare 304 {
     int Tcl_GetIndexFromObjStruct(Tcl_Interp *interp, Tcl_Obj *objPtr,
-	    const void *tablePtr, int offset, const char *msg, int flags,
-	    int *indexPtr)
+	    const void *tablePtr, Tcl_Size offset, const char *msg, int flags,
+	    void *indexPtr)
 }
 declare 305 {
-    void *Tcl_GetThreadData(Tcl_ThreadDataKey *keyPtr, int size)
+    void *Tcl_GetThreadData(Tcl_ThreadDataKey *keyPtr, Tcl_Size size)
 }
 declare 306 {
     Tcl_Obj *Tcl_GetVar2Ex(Tcl_Interp *interp, const char *part1,
 	    const char *part2, int flags)
 }
 declare 307 {
-    ClientData Tcl_InitNotifier(void)
+    void *Tcl_InitNotifier(void)
 }
 declare 308 {
     void Tcl_MutexLock(Tcl_Mutex *mutexPtr)
@@ -1117,20 +951,14 @@ declare 310 {
 }
 declare 311 {
     void Tcl_ConditionWait(Tcl_Condition *condPtr, Tcl_Mutex *mutexPtr,
-	    Tcl_Time *timePtr)
+	    const Tcl_Time *timePtr)
 }
 declare 312 {
-    int Tcl_NumUtfChars(const char *src, int length)
+    Tcl_Size TclNumUtfChars(const char *src, Tcl_Size length)
 }
 declare 313 {
-    int Tcl_ReadChars(Tcl_Channel channel, Tcl_Obj *objPtr, int charsToRead,
-	    int appendFlag)
-}
-declare 314 {
-    void Tcl_RestoreResult(Tcl_Interp *interp, Tcl_SavedResult *statePtr)
-}
-declare 315 {
-    void Tcl_SaveResult(Tcl_Interp *interp, Tcl_SavedResult *statePtr)
+    Tcl_Size Tcl_ReadChars(Tcl_Channel channel, Tcl_Obj *objPtr,
+	    Tcl_Size charsToRead, int appendFlag)
 }
 declare 316 {
     int Tcl_SetSystemEncoding(Tcl_Interp *interp, const char *name)
@@ -1144,83 +972,77 @@ declare 318 {
 }
 declare 319 {
     void Tcl_ThreadQueueEvent(Tcl_ThreadId threadId, Tcl_Event *evPtr,
-	    Tcl_QueuePosition position)
+	    int position)
 }
 declare 320 {
-    Tcl_UniChar Tcl_UniCharAtIndex(const char *src, int index)
+    int Tcl_UniCharAtIndex(const char *src, Tcl_Size index)
 }
 declare 321 {
-    Tcl_UniChar Tcl_UniCharToLower(int ch)
+    int Tcl_UniCharToLower(int ch)
 }
 declare 322 {
-    Tcl_UniChar Tcl_UniCharToTitle(int ch)
+    int Tcl_UniCharToTitle(int ch)
 }
 declare 323 {
-    Tcl_UniChar Tcl_UniCharToUpper(int ch)
+    int Tcl_UniCharToUpper(int ch)
 }
 declare 324 {
-    int Tcl_UniCharToUtf(int ch, char *buf)
+    Tcl_Size Tcl_UniCharToUtf(int ch, char *buf)
 }
 declare 325 {
-    CONST84_RETURN char *Tcl_UtfAtIndex(const char *src, int index)
+    const char *TclUtfAtIndex(const char *src, Tcl_Size index)
 }
 declare 326 {
-    int Tcl_UtfCharComplete(const char *src, int length)
+    int TclUtfCharComplete(const char *src, Tcl_Size length)
 }
 declare 327 {
-    int Tcl_UtfBackslash(const char *src, int *readPtr, char *dst)
+    Tcl_Size Tcl_UtfBackslash(const char *src, int *readPtr, char *dst)
 }
 declare 328 {
-    CONST84_RETURN char *Tcl_UtfFindFirst(const char *src, int ch)
+    const char *Tcl_UtfFindFirst(const char *src, int ch)
 }
 declare 329 {
-    CONST84_RETURN char *Tcl_UtfFindLast(const char *src, int ch)
+    const char *Tcl_UtfFindLast(const char *src, int ch)
 }
 declare 330 {
-    CONST84_RETURN char *Tcl_UtfNext(const char *src)
+    const char *TclUtfNext(const char *src)
 }
 declare 331 {
-    CONST84_RETURN char *Tcl_UtfPrev(const char *src, const char *start)
+    const char *TclUtfPrev(const char *src, const char *start)
 }
 declare 332 {
     int Tcl_UtfToExternal(Tcl_Interp *interp, Tcl_Encoding encoding,
-	    const char *src, int srcLen, int flags,
-	    Tcl_EncodingState *statePtr, char *dst, int dstLen,
+	    const char *src, Tcl_Size srcLen, int flags,
+	    Tcl_EncodingState *statePtr, char *dst, Tcl_Size dstLen,
 	    int *srcReadPtr, int *dstWrotePtr, int *dstCharsPtr)
 }
 declare 333 {
     char *Tcl_UtfToExternalDString(Tcl_Encoding encoding,
-	    const char *src, int srcLen, Tcl_DString *dsPtr)
+	    const char *src, Tcl_Size srcLen, Tcl_DString *dsPtr)
 }
 declare 334 {
-    int Tcl_UtfToLower(char *src)
+    Tcl_Size Tcl_UtfToLower(char *src)
 }
 declare 335 {
-    int Tcl_UtfToTitle(char *src)
+    Tcl_Size Tcl_UtfToTitle(char *src)
 }
 declare 336 {
-    int Tcl_UtfToUniChar(const char *src, Tcl_UniChar *chPtr)
+    Tcl_Size Tcl_UtfToChar16(const char *src, unsigned short *chPtr)
 }
 declare 337 {
-    int Tcl_UtfToUpper(char *src)
+    Tcl_Size Tcl_UtfToUpper(char *src)
 }
 declare 338 {
-    int Tcl_WriteChars(Tcl_Channel chan, const char *src, int srcLen)
+    Tcl_Size Tcl_WriteChars(Tcl_Channel chan, const char *src, Tcl_Size srcLen)
 }
 declare 339 {
-    int Tcl_WriteObj(Tcl_Channel chan, Tcl_Obj *objPtr)
+    Tcl_Size Tcl_WriteObj(Tcl_Channel chan, Tcl_Obj *objPtr)
 }
 declare 340 {
     char *Tcl_GetString(Tcl_Obj *objPtr)
 }
-declare 341 {
-    CONST84_RETURN char *Tcl_GetDefaultEncodingDir(void)
-}
-declare 342 {
-    void Tcl_SetDefaultEncodingDir(const char *path)
-}
 declare 343 {
-    void Tcl_AlertNotifier(ClientData clientData)
+    void Tcl_AlertNotifier(void *clientData)
 }
 declare 344 {
     void Tcl_ServiceModeHook(int mode)
@@ -1247,55 +1069,48 @@ declare 351 {
     int Tcl_UniCharIsWordChar(int ch)
 }
 declare 352 {
-    int Tcl_UniCharLen(const Tcl_UniChar *uniStr)
-}
-declare 353 {
-    int Tcl_UniCharNcmp(const Tcl_UniChar *ucs, const Tcl_UniChar *uct,
-	    unsigned long numChars)
+    Tcl_Size Tcl_Char16Len(const unsigned short *uniStr)
 }
 declare 354 {
-    char *Tcl_UniCharToUtfDString(const Tcl_UniChar *uniStr,
-	    int uniLength, Tcl_DString *dsPtr)
+    char *Tcl_Char16ToUtfDString(const unsigned short *uniStr,
+	    Tcl_Size uniLength, Tcl_DString *dsPtr)
 }
 declare 355 {
-    Tcl_UniChar *Tcl_UtfToUniCharDString(const char *src,
-	    int length, Tcl_DString *dsPtr)
+    unsigned short *Tcl_UtfToChar16DString(const char *src,
+	    Tcl_Size length, Tcl_DString *dsPtr)
 }
 declare 356 {
     Tcl_RegExp Tcl_GetRegExpFromObj(Tcl_Interp *interp, Tcl_Obj *patObj,
 	    int flags)
 }
-declare 357 {
-    Tcl_Obj *Tcl_EvalTokens(Tcl_Interp *interp, Tcl_Token *tokenPtr,
-	    int count)
-}
 declare 358 {
     void Tcl_FreeParse(Tcl_Parse *parsePtr)
 }
 declare 359 {
     void Tcl_LogCommandInfo(Tcl_Interp *interp, const char *script,
-	    const char *command, int length)
+	    const char *command, Tcl_Size length)
 }
 declare 360 {
-    int Tcl_ParseBraces(Tcl_Interp *interp, const char *start, int numBytes,
-	    Tcl_Parse *parsePtr, int append, CONST84 char **termPtr)
+    int Tcl_ParseBraces(Tcl_Interp *interp, const char *start,
+	    Tcl_Size numBytes, Tcl_Parse *parsePtr, int append,
+	    const char **termPtr)
 }
 declare 361 {
-    int Tcl_ParseCommand(Tcl_Interp *interp, const char *start, int numBytes,
-	    int nested, Tcl_Parse *parsePtr)
+    int Tcl_ParseCommand(Tcl_Interp *interp, const char *start,
+	    Tcl_Size numBytes, int nested, Tcl_Parse *parsePtr)
 }
 declare 362 {
-    int Tcl_ParseExpr(Tcl_Interp *interp, const char *start, int numBytes,
-	    Tcl_Parse *parsePtr)
+    int Tcl_ParseExpr(Tcl_Interp *interp, const char *start,
+	    Tcl_Size numBytes, Tcl_Parse *parsePtr)
 }
 declare 363 {
     int Tcl_ParseQuotedString(Tcl_Interp *interp, const char *start,
-	    int numBytes, Tcl_Parse *parsePtr, int append,
-	    CONST84 char **termPtr)
+	    Tcl_Size numBytes, Tcl_Parse *parsePtr, int append,
+	    const char **termPtr)
 }
 declare 364 {
-    int Tcl_ParseVarName(Tcl_Interp *interp, const char *start, int numBytes,
-	    Tcl_Parse *parsePtr, int append)
+    int Tcl_ParseVarName(Tcl_Interp *interp, const char *start,
+	    Tcl_Size numBytes, Tcl_Parse *parsePtr, int append)
 }
 # These 4 functions are obsolete, use Tcl_FSGetCwd, Tcl_FSChdir,
 # Tcl_FSAccess and Tcl_FSStat
@@ -1312,10 +1127,10 @@ declare 368 {
     int Tcl_Stat(const char *path, struct stat *bufPtr)
 }
 declare 369 {
-    int Tcl_UtfNcmp(const char *s1, const char *s2, unsigned long n)
+    int TclUtfNcmp(const char *s1, const char *s2, size_t n)
 }
 declare 370 {
-    int Tcl_UtfNcasecmp(const char *s1, const char *s2, unsigned long n)
+    int TclUtfNcasecmp(const char *s1, const char *s2, size_t n)
 }
 declare 371 {
     int Tcl_StringCaseMatch(const char *str, const char *pattern, int nocase)
@@ -1334,40 +1149,37 @@ declare 375 {
 }
 declare 376 {
     int Tcl_RegExpExecObj(Tcl_Interp *interp, Tcl_RegExp regexp,
-	    Tcl_Obj *textObj, int offset, int nmatches, int flags)
+	    Tcl_Obj *textObj, Tcl_Size offset, Tcl_Size nmatches, int flags)
 }
 declare 377 {
     void Tcl_RegExpGetInfo(Tcl_RegExp regexp, Tcl_RegExpInfo *infoPtr)
 }
 declare 378 {
-    Tcl_Obj *Tcl_NewUnicodeObj(const Tcl_UniChar *unicode, int numChars)
+    Tcl_Obj *Tcl_NewUnicodeObj(const Tcl_UniChar *unicode, Tcl_Size numChars)
 }
 declare 379 {
     void Tcl_SetUnicodeObj(Tcl_Obj *objPtr, const Tcl_UniChar *unicode,
-	    int numChars)
+	    Tcl_Size numChars)
 }
 declare 380 {
-    int Tcl_GetCharLength(Tcl_Obj *objPtr)
+    Tcl_Size TclGetCharLength(Tcl_Obj *objPtr)
 }
 declare 381 {
-    Tcl_UniChar Tcl_GetUniChar(Tcl_Obj *objPtr, int index)
-}
-declare 382 {
-    Tcl_UniChar *Tcl_GetUnicode(Tcl_Obj *objPtr)
+    int TclGetUniChar(Tcl_Obj *objPtr, Tcl_Size index)
 }
 declare 383 {
-    Tcl_Obj *Tcl_GetRange(Tcl_Obj *objPtr, int first, int last)
+    Tcl_Obj *TclGetRange(Tcl_Obj *objPtr, Tcl_Size first, Tcl_Size last)
 }
 declare 384 {
     void Tcl_AppendUnicodeToObj(Tcl_Obj *objPtr, const Tcl_UniChar *unicode,
-	    int length)
+	    Tcl_Size length)
 }
 declare 385 {
     int Tcl_RegExpMatchObj(Tcl_Interp *interp, Tcl_Obj *textObj,
 	    Tcl_Obj *patternObj)
 }
 declare 386 {
-    void Tcl_SetNotifier(Tcl_NotifierProcs *notifierProcPtr)
+    void Tcl_SetNotifier(const Tcl_NotifierProcs *notifierProcPtr)
 }
 declare 387 {
     Tcl_Mutex *Tcl_GetAllocMutex(void)
@@ -1379,8 +1191,8 @@ declare 389 {
     int Tcl_GetChannelNamesEx(Tcl_Interp *interp, const char *pattern)
 }
 declare 390 {
-    int Tcl_ProcObjCmd(ClientData clientData, Tcl_Interp *interp,
-	    int objc, Tcl_Obj *const objv[])
+    int Tcl_ProcObjCmd(void *clientData, Tcl_Interp *interp,
+	    Tcl_Size objc, Tcl_Obj *const objv[])
 }
 declare 391 {
     void Tcl_ConditionFinalize(Tcl_Condition *condPtr)
@@ -1389,16 +1201,16 @@ declare 392 {
     void Tcl_MutexFinalize(Tcl_Mutex *mutex)
 }
 declare 393 {
-    int Tcl_CreateThread(Tcl_ThreadId *idPtr, Tcl_ThreadCreateProc proc,
-	    ClientData clientData, int stackSize, int flags)
+    int Tcl_CreateThread(Tcl_ThreadId *idPtr, Tcl_ThreadCreateProc *proc,
+	    void *clientData, size_t stackSize, int flags)
 }
 
 # Introduced in 8.3.2
 declare 394 {
-    int Tcl_ReadRaw(Tcl_Channel chan, char *dst, int bytesToRead)
+    Tcl_Size Tcl_ReadRaw(Tcl_Channel chan, char *dst, Tcl_Size bytesToRead)
 }
 declare 395 {
-    int Tcl_WriteRaw(Tcl_Channel chan, const char *src, int srcLen)
+    Tcl_Size Tcl_WriteRaw(Tcl_Channel chan, const char *src, Tcl_Size srcLen)
 }
 declare 396 {
     Tcl_Channel Tcl_GetTopChannel(Tcl_Channel chan)
@@ -1407,7 +1219,7 @@ declare 397 {
     int Tcl_ChannelBuffered(Tcl_Channel chan)
 }
 declare 398 {
-    CONST84_RETURN char *Tcl_ChannelName(const Tcl_ChannelType *chanTypePtr)
+    const char *Tcl_ChannelName(const Tcl_ChannelType *chanTypePtr)
 }
 declare 399 {
     Tcl_ChannelTypeVersion Tcl_ChannelVersion(
@@ -1417,10 +1229,6 @@ declare 400 {
     Tcl_DriverBlockModeProc *Tcl_ChannelBlockModeProc(
 	    const Tcl_ChannelType *chanTypePtr)
 }
-declare 401 {
-    Tcl_DriverCloseProc *Tcl_ChannelCloseProc(
-	    const Tcl_ChannelType *chanTypePtr)
-}
 declare 402 {
     Tcl_DriverClose2Proc *Tcl_ChannelClose2Proc(
 	    const Tcl_ChannelType *chanTypePtr)
@@ -1433,10 +1241,6 @@ declare 404 {
     Tcl_DriverOutputProc *Tcl_ChannelOutputProc(
 	    const Tcl_ChannelType *chanTypePtr)
 }
-declare 405 {
-    Tcl_DriverSeekProc *Tcl_ChannelSeekProc(
-	    const Tcl_ChannelType *chanTypePtr)
-}
 declare 406 {
     Tcl_DriverSetOptionProc *Tcl_ChannelSetOptionProc(
 	    const Tcl_ChannelType *chanTypePtr)
@@ -1484,56 +1288,41 @@ declare 417 {
 declare 418 {
     int Tcl_IsChannelExisting(const char *channelName)
 }
-declare 419 {
-    int Tcl_UniCharNcasecmp(const Tcl_UniChar *ucs, const Tcl_UniChar *uct,
-	    unsigned long numChars)
-}
-declare 420 {
-    int Tcl_UniCharCaseMatch(const Tcl_UniChar *uniStr,
-	    const Tcl_UniChar *uniPattern, int nocase)
-}
-declare 421 {
-    Tcl_HashEntry *Tcl_FindHashEntry(Tcl_HashTable *tablePtr, const char *key)
-}
-declare 422 {
-    Tcl_HashEntry *Tcl_CreateHashEntry(Tcl_HashTable *tablePtr,
-	    const char *key, int *newPtr)
-}
 declare 423 {
     void Tcl_InitCustomHashTable(Tcl_HashTable *tablePtr, int keyType,
-	    Tcl_HashKeyType *typePtr)
+	    const Tcl_HashKeyType *typePtr)
 }
 declare 424 {
     void Tcl_InitObjHashTable(Tcl_HashTable *tablePtr)
 }
 declare 425 {
-    ClientData Tcl_CommandTraceInfo(Tcl_Interp *interp, const char *varName,
+    void *Tcl_CommandTraceInfo(Tcl_Interp *interp, const char *varName,
 	    int flags, Tcl_CommandTraceProc *procPtr,
-	    ClientData prevClientData)
+	    void *prevClientData)
 }
 declare 426 {
     int Tcl_TraceCommand(Tcl_Interp *interp, const char *varName, int flags,
-	    Tcl_CommandTraceProc *proc, ClientData clientData)
+	    Tcl_CommandTraceProc *proc, void *clientData)
 }
 declare 427 {
     void Tcl_UntraceCommand(Tcl_Interp *interp, const char *varName,
-	    int flags, Tcl_CommandTraceProc *proc, ClientData clientData)
+	    int flags, Tcl_CommandTraceProc *proc, void *clientData)
 }
 declare 428 {
-    char *Tcl_AttemptAlloc(unsigned int size)
+    void *Tcl_AttemptAlloc(size_t size)
 }
 declare 429 {
-    char *Tcl_AttemptDbCkalloc(unsigned int size, const char *file, int line)
+    void *Tcl_AttemptDbCkalloc(size_t size, const char *file, int line)
 }
 declare 430 {
-    char *Tcl_AttemptRealloc(char *ptr, unsigned int size)
+    void *Tcl_AttemptRealloc(void *ptr, size_t size)
 }
 declare 431 {
-    char *Tcl_AttemptDbCkrealloc(char *ptr, unsigned int size,
+    void *Tcl_AttemptDbCkrealloc(void *ptr, size_t size,
 	    const char *file, int line)
 }
 declare 432 {
-    int Tcl_AttemptSetObjLength(Tcl_Obj *objPtr, int length)
+    int Tcl_AttemptSetObjLength(Tcl_Obj *objPtr, Tcl_Size length)
 }
 
 # TIP#10 (thread-aware channels) akupries
@@ -1543,17 +1332,7 @@ declare 433 {
 
 # introduced in 8.4a3
 declare 434 {
-    Tcl_UniChar *Tcl_GetUnicodeFromObj(Tcl_Obj *objPtr, int *lengthPtr)
-}
-
-# TIP#15 (math function introspection) dkf
-declare 435 {
-    int Tcl_GetMathFuncInfo(Tcl_Interp *interp, const char *name,
-	    int *numArgsPtr, Tcl_ValueType **argTypesPtr,
-	    Tcl_MathProc **procPtr, ClientData *clientDataPtr)
-}
-declare 436 {
-    Tcl_Obj *Tcl_ListMathFuncs(Tcl_Interp *interp, const char *pattern)
+    Tcl_UniChar *TclGetUnicodeFromObj(Tcl_Obj *objPtr, void *lengthPtr)
 }
 
 # TIP#36 (better access to 'subst') dkf
@@ -1583,8 +1362,8 @@ declare 443 {
 }
 declare 444 {
     int	Tcl_FSLoadFile(Tcl_Interp *interp, Tcl_Obj *pathPtr, const char *sym1,
-	    const char *sym2, Tcl_PackageInitProc **proc1Ptr,
-	    Tcl_PackageInitProc **proc2Ptr, Tcl_LoadHandle *handlePtr,
+	    const char *sym2, Tcl_LibraryInitProc **proc1Ptr,
+	    Tcl_LibraryInitProc **proc2Ptr, Tcl_LoadHandle *handlePtr,
 	    Tcl_FSUnloadFileProc **unloadProcPtr)
 }
 declare 445 {
@@ -1616,7 +1395,7 @@ declare 452 {
 	    int index, Tcl_Obj *pathPtr, Tcl_Obj *objPtr)
 }
 declare 453 {
-    const char **Tcl_FSFileAttrStrings(Tcl_Obj *pathPtr,
+    const char *const *Tcl_FSFileAttrStrings(Tcl_Obj *pathPtr,
 	    Tcl_Obj **objPtrRef)
 }
 declare 454 {
@@ -1639,10 +1418,10 @@ declare 459 {
     int Tcl_FSConvertToPathType(Tcl_Interp *interp, Tcl_Obj *pathPtr)
 }
 declare 460 {
-    Tcl_Obj *Tcl_FSJoinPath(Tcl_Obj *listObj, int elements)
+    Tcl_Obj *Tcl_FSJoinPath(Tcl_Obj *listObj, Tcl_Size elements)
 }
 declare 461 {
-    Tcl_Obj *Tcl_FSSplitPath(Tcl_Obj *pathPtr, int *lenPtr)
+    Tcl_Obj *TclFSSplitPath(Tcl_Obj *pathPtr, void *lenPtr)
 }
 declare 462 {
     int Tcl_FSEqualPaths(Tcl_Obj *firstPtr, Tcl_Obj *secondPtr)
@@ -1651,12 +1430,12 @@ declare 463 {
     Tcl_Obj *Tcl_FSGetNormalizedPath(Tcl_Interp *interp, Tcl_Obj *pathPtr)
 }
 declare 464 {
-    Tcl_Obj *Tcl_FSJoinToPath(Tcl_Obj *pathPtr, int objc,
+    Tcl_Obj *Tcl_FSJoinToPath(Tcl_Obj *pathPtr, Tcl_Size objc,
 	    Tcl_Obj *const objv[])
 }
 declare 465 {
-    ClientData Tcl_FSGetInternalRep(Tcl_Obj *pathPtr,
-	    Tcl_Filesystem *fsPtr)
+    void *Tcl_FSGetInternalRep(Tcl_Obj *pathPtr,
+	    const Tcl_Filesystem *fsPtr)
 }
 declare 466 {
     Tcl_Obj *Tcl_FSGetTranslatedPath(Tcl_Interp *interp, Tcl_Obj *pathPtr)
@@ -1665,11 +1444,11 @@ declare 467 {
     int Tcl_FSEvalFile(Tcl_Interp *interp, Tcl_Obj *fileName)
 }
 declare 468 {
-    Tcl_Obj *Tcl_FSNewNativePath(Tcl_Filesystem *fromFilesystem,
-	    ClientData clientData)
+    Tcl_Obj *Tcl_FSNewNativePath(const Tcl_Filesystem *fromFilesystem,
+	    void *clientData)
 }
 declare 469 {
-    const char *Tcl_FSGetNativePath(Tcl_Obj *pathPtr)
+    const void *Tcl_FSGetNativePath(Tcl_Obj *pathPtr)
 }
 declare 470 {
     Tcl_Obj *Tcl_FSFileSystemInfo(Tcl_Obj *pathPtr)
@@ -1681,20 +1460,20 @@ declare 472 {
     Tcl_Obj *Tcl_FSListVolumes(void)
 }
 declare 473 {
-    int Tcl_FSRegister(ClientData clientData, Tcl_Filesystem *fsPtr)
+    int Tcl_FSRegister(void *clientData, const Tcl_Filesystem *fsPtr)
 }
 declare 474 {
-    int Tcl_FSUnregister(Tcl_Filesystem *fsPtr)
+    int Tcl_FSUnregister(const Tcl_Filesystem *fsPtr)
 }
 declare 475 {
-    ClientData Tcl_FSData(Tcl_Filesystem *fsPtr)
+    void *Tcl_FSData(const Tcl_Filesystem *fsPtr)
 }
 declare 476 {
     const char *Tcl_FSGetTranslatedStringPath(Tcl_Interp *interp,
 	    Tcl_Obj *pathPtr)
 }
 declare 477 {
-    Tcl_Filesystem *Tcl_FSGetFileSystemForPath(Tcl_Obj *pathPtr)
+    const Tcl_Filesystem *Tcl_FSGetFileSystemForPath(Tcl_Obj *pathPtr)
 }
 declare 478 {
     Tcl_PathType Tcl_FSGetPathType(Tcl_Obj *pathPtr)
@@ -1705,13 +1484,13 @@ declare 479 {
     int Tcl_OutputBuffered(Tcl_Channel chan)
 }
 declare 480 {
-    void Tcl_FSMountsChanged(Tcl_Filesystem *fsPtr)
+    void Tcl_FSMountsChanged(const Tcl_Filesystem *fsPtr)
 }
 
 # TIP#56 (evaluate a parsed script) msofer
 declare 481 {
     int Tcl_EvalTokensStandard(Tcl_Interp *interp, Tcl_Token *tokenPtr,
-	    int count)
+	    Tcl_Size count)
 }
 
 # TIP#73 (access to current time) kbk
@@ -1721,8 +1500,8 @@ declare 482 {
 
 # TIP#32 (object-enabled traces) kbk
 declare 483 {
-    Tcl_Trace Tcl_CreateObjTrace(Tcl_Interp *interp, int level, int flags,
-	    Tcl_CmdObjTraceProc *objProc, ClientData clientData,
+    Tcl_Trace Tcl_CreateObjTrace(Tcl_Interp *interp, Tcl_Size level, int flags,
+	    Tcl_CmdObjTraceProc *objProc, void *clientData,
 	    Tcl_CmdObjTraceDeleteProc *delProc)
 }
 declare 484 {
@@ -1753,10 +1532,10 @@ declare 490 {
     Tcl_StatBuf *Tcl_AllocStatBuf(void)
 }
 declare 491 {
-    Tcl_WideInt Tcl_Seek(Tcl_Channel chan, Tcl_WideInt offset, int mode)
+    long long Tcl_Seek(Tcl_Channel chan, long long offset, int mode)
 }
 declare 492 {
-    Tcl_WideInt Tcl_Tell(Tcl_Channel chan)
+    long long Tcl_Tell(Tcl_Channel chan)
 }
 
 # TIP#91 (back-compat enhancements for channels) dkf
@@ -1781,7 +1560,7 @@ declare 496 {
 	    Tcl_Obj *keyPtr)
 }
 declare 497 {
-    int Tcl_DictObjSize(Tcl_Interp *interp, Tcl_Obj *dictPtr, int *sizePtr)
+    int TclDictObjSize(Tcl_Interp *interp, Tcl_Obj *dictPtr, void *sizePtr)
 }
 declare 498 {
     int Tcl_DictObjFirst(Tcl_Interp *interp, Tcl_Obj *dictPtr,
@@ -1797,11 +1576,11 @@ declare 500 {
 }
 declare 501 {
     int Tcl_DictObjPutKeyList(Tcl_Interp *interp, Tcl_Obj *dictPtr,
-	    int keyc, Tcl_Obj *const *keyv, Tcl_Obj *valuePtr)
+	    Tcl_Size keyc, Tcl_Obj *const *keyv, Tcl_Obj *valuePtr)
 }
 declare 502 {
     int Tcl_DictObjRemoveKeyList(Tcl_Interp *interp, Tcl_Obj *dictPtr,
-	    int keyc, Tcl_Obj *const *keyv)
+	    Tcl_Size keyc, Tcl_Obj *const *keyv)
 }
 declare 503 {
     Tcl_Obj *Tcl_NewDictObj(void)
@@ -1813,14 +1592,14 @@ declare 504 {
 # TIP#59 (configuration reporting) akupries
 declare 505 {
     void Tcl_RegisterConfig(Tcl_Interp *interp, const char *pkgName,
-	    Tcl_Config *configuration, const char *valEncoding)
+	    const Tcl_Config *configuration, const char *valEncoding)
 }
 
 # TIP #139 (partial exposure of namespace API - transferred from tclInt.decls)
 # dkf, API by Brent Welch?
 declare 506 {
     Tcl_Namespace *Tcl_CreateNamespace(Tcl_Interp *interp, const char *name,
-	    ClientData clientData, Tcl_NamespaceDeleteProc *deleteProc)
+	    void *clientData, Tcl_NamespaceDeleteProc *deleteProc)
 }
 declare 507 {
     void Tcl_DeleteNamespace(Tcl_Namespace *nsPtr)
@@ -1869,20 +1648,15 @@ declare 518 {
 	    const char *encodingName)
 }
 
-# TIP#121 (exit handler) dkf for Joe Mistachkin
-declare 519 {
-    Tcl_ExitProc *Tcl_SetExitProc(Tcl_ExitProc *proc)
-}
-
 # TIP#143 (resource limits) dkf
 declare 520 {
     void Tcl_LimitAddHandler(Tcl_Interp *interp, int type,
-	    Tcl_LimitHandlerProc *handlerProc, ClientData clientData,
+	    Tcl_LimitHandlerProc *handlerProc, void *clientData,
 	    Tcl_LimitHandlerDeleteProc *deleteProc)
 }
 declare 521 {
     void Tcl_LimitRemoveHandler(Tcl_Interp *interp, int type,
-	    Tcl_LimitHandlerProc *handlerProc, ClientData clientData)
+	    Tcl_LimitHandlerProc *handlerProc, void *clientData)
 }
 declare 522 {
     int Tcl_LimitReady(Tcl_Interp *interp)
@@ -1894,7 +1668,7 @@ declare 524 {
     int Tcl_LimitExceeded(Tcl_Interp *interp)
 }
 declare 525 {
-    void Tcl_LimitSetCommands(Tcl_Interp *interp, int commandLimit)
+    void Tcl_LimitSetCommands(Tcl_Interp *interp, Tcl_Size commandLimit)
 }
 declare 526 {
     void Tcl_LimitSetTime(Tcl_Interp *interp, Tcl_Time *timeLimitPtr)
@@ -1915,7 +1689,7 @@ declare 531 {
     void Tcl_LimitTypeReset(Tcl_Interp *interp, int type)
 }
 declare 532 {
-    int Tcl_LimitGetCommands(Tcl_Interp *interp)
+    Tcl_Size Tcl_LimitGetCommands(Tcl_Interp *interp)
 }
 declare 533 {
     void Tcl_LimitGetTime(Tcl_Interp *interp, Tcl_Time *timeLimitPtr)
@@ -1995,12 +1769,12 @@ declare 551 {
 declare 552 {
     void Tcl_SetTimeProc(Tcl_GetTimeProc *getProc,
 	    Tcl_ScaleTimeProc *scaleProc,
-	    ClientData clientData)
+	    void *clientData)
 }
 declare 553 {
     void Tcl_QueryTimeProc(Tcl_GetTimeProc **getProc,
 	    Tcl_ScaleTimeProc **scaleProc,
-	    ClientData *clientData)
+	    void **clientData)
 }
 
 # TIP#218 (driver thread actions) davygrvy/akupries ChannelType ver 4
@@ -2011,24 +1785,24 @@ declare 554 {
 
 # TIP#237 (arbitrary-precision integers) kbk
 declare 555 {
-    Tcl_Obj *Tcl_NewBignumObj(mp_int *value)
+    Tcl_Obj *Tcl_NewBignumObj(void *value)
 }
 declare 556 {
-    Tcl_Obj *Tcl_DbNewBignumObj(mp_int *value, const char *file, int line)
+    Tcl_Obj *Tcl_DbNewBignumObj(void *value, const char *file, int line)
 }
 declare 557 {
-    void Tcl_SetBignumObj(Tcl_Obj *obj, mp_int *value)
+    void Tcl_SetBignumObj(Tcl_Obj *obj, void *value)
 }
 declare 558 {
-    int Tcl_GetBignumFromObj(Tcl_Interp *interp, Tcl_Obj *obj, mp_int *value)
+    int Tcl_GetBignumFromObj(Tcl_Interp *interp, Tcl_Obj *obj, void *value)
 }
 declare 559 {
-    int Tcl_TakeBignumFromObj(Tcl_Interp *interp, Tcl_Obj *obj, mp_int *value)
+    int Tcl_TakeBignumFromObj(Tcl_Interp *interp, Tcl_Obj *obj, void *value)
 }
 
 # TIP #208 ('chan' command) jeffh
 declare 560 {
-    int Tcl_TruncateChannel(Tcl_Channel chan, Tcl_WideInt length)
+    int Tcl_TruncateChannel(Tcl_Channel chan, long long length)
 }
 declare 561 {
     Tcl_DriverTruncateProc *Tcl_ChannelTruncateProc(
@@ -2052,7 +1826,7 @@ declare 565 {
 # TIP #237 (additional conversion functions for bignum support) kbk/dgp
 declare 566 {
     int Tcl_InitBignumFromDouble(Tcl_Interp *interp, double initval,
-	    mp_int *toInit)
+	    void *toInit)
 }
 
 # TIP#181 (namespace unknown command) dgp for Neil Madden
@@ -2083,7 +1857,7 @@ declare 572 {
 # TIP#268 (extended version numbers and requirements) akupries
 declare 573 {
     int Tcl_PkgRequireProc(Tcl_Interp *interp, const char *name,
-	    int objc, Tcl_Obj *const objv[], ClientData *clientDataPtr)
+	    Tcl_Size objc, Tcl_Obj *const objv[], void *clientDataPtr)
 }
 
 # TIP#270 (utility C routines for string formatting) dgp
@@ -2091,16 +1865,16 @@ declare 574 {
     void Tcl_AppendObjToErrorInfo(Tcl_Interp *interp, Tcl_Obj *objPtr)
 }
 declare 575 {
-    void Tcl_AppendLimitedToObj(Tcl_Obj *objPtr, const char *bytes, int length,
-	    int limit, const char *ellipsis)
+    void Tcl_AppendLimitedToObj(Tcl_Obj *objPtr, const char *bytes,
+	    Tcl_Size length, Tcl_Size limit, const char *ellipsis)
 }
 declare 576 {
-    Tcl_Obj *Tcl_Format(Tcl_Interp *interp, const char *format, int objc,
+    Tcl_Obj *Tcl_Format(Tcl_Interp *interp, const char *format, Tcl_Size objc,
 	    Tcl_Obj *const objv[])
 }
 declare 577 {
     int Tcl_AppendFormatToObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
-	    const char *format, int objc, Tcl_Obj *const objv[])
+	    const char *format, Tcl_Size objc, Tcl_Obj *const objv[])
 }
 declare 578 {
     Tcl_Obj *Tcl_ObjPrintf(const char *format, ...)
@@ -2111,7 +1885,490 @@ declare 579 {
 
 # ----- BASELINE -- FOR -- 8.5.0 ----- #
 
+# TIP #285 (script cancellation support) jmistachkin
+declare 580 {
+    int Tcl_CancelEval(Tcl_Interp *interp, Tcl_Obj *resultObjPtr,
+	    void *clientData, int flags)
+}
+declare 581 {
+    int Tcl_Canceled(Tcl_Interp *interp, int flags)
+}
+
+# TIP#304 (chan pipe) aferrieux
+declare 582 {
+    int Tcl_CreatePipe(Tcl_Interp  *interp, Tcl_Channel *rchan,
+	    Tcl_Channel *wchan, int flags)
+}
+
+# TIP #322 (NRE public interface) msofer
+declare 583 {
+    Tcl_Command Tcl_NRCreateCommand(Tcl_Interp *interp,
+	    const char *cmdName, Tcl_ObjCmdProc *proc,
+	    Tcl_ObjCmdProc *nreProc, void *clientData,
+	    Tcl_CmdDeleteProc *deleteProc)
+}
+declare 584 {
+    int Tcl_NREvalObj(Tcl_Interp *interp, Tcl_Obj *objPtr, int flags)
+}
+declare 585 {
+    int Tcl_NREvalObjv(Tcl_Interp *interp, Tcl_Size objc,
+	    Tcl_Obj *const objv[], int flags)
+}
+declare 586 {
+    int Tcl_NRCmdSwap(Tcl_Interp *interp, Tcl_Command cmd, Tcl_Size objc,
+	    Tcl_Obj *const objv[], int flags)
+}
+declare 587 {
+    void Tcl_NRAddCallback(Tcl_Interp *interp, Tcl_NRPostProc *postProcPtr,
+	    void *data0, void *data1, void *data2,
+	    void *data3)
+}
+# For use by NR extenders, to have a simple way to also provide a (required!)
+# classic objProc
+declare 588 {
+    int Tcl_NRCallObjProc(Tcl_Interp *interp, Tcl_ObjCmdProc *objProc,
+	    void *clientData, Tcl_Size objc, Tcl_Obj *const objv[])
+}
+
+# TIP#316 (Tcl_StatBuf reader functions) dkf
+declare 589 {
+    unsigned Tcl_GetFSDeviceFromStat(const Tcl_StatBuf *statPtr)
+}
+declare 590 {
+    unsigned Tcl_GetFSInodeFromStat(const Tcl_StatBuf *statPtr)
+}
+declare 591 {
+    unsigned Tcl_GetModeFromStat(const Tcl_StatBuf *statPtr)
+}
+declare 592 {
+    int Tcl_GetLinkCountFromStat(const Tcl_StatBuf *statPtr)
+}
+declare 593 {
+    int Tcl_GetUserIdFromStat(const Tcl_StatBuf *statPtr)
+}
+declare 594 {
+    int Tcl_GetGroupIdFromStat(const Tcl_StatBuf *statPtr)
+}
+declare 595 {
+    int Tcl_GetDeviceTypeFromStat(const Tcl_StatBuf *statPtr)
+}
+declare 596 {
+    long long Tcl_GetAccessTimeFromStat(const Tcl_StatBuf *statPtr)
+}
+declare 597 {
+    long long Tcl_GetModificationTimeFromStat(const Tcl_StatBuf *statPtr)
+}
+declare 598 {
+    long long Tcl_GetChangeTimeFromStat(const Tcl_StatBuf *statPtr)
+}
+declare 599 {
+    unsigned long long Tcl_GetSizeFromStat(const Tcl_StatBuf *statPtr)
+}
+declare 600 {
+    unsigned long long Tcl_GetBlocksFromStat(const Tcl_StatBuf *statPtr)
+}
+declare 601 {
+    unsigned Tcl_GetBlockSizeFromStat(const Tcl_StatBuf *statPtr)
+}
+
+# TIP#314 (ensembles with parameters) dkf for Lars Hellstr"om
+declare 602 {
+    int Tcl_SetEnsembleParameterList(Tcl_Interp *interp, Tcl_Command token,
+	    Tcl_Obj *paramList)
+}
+declare 603 {
+    int Tcl_GetEnsembleParameterList(Tcl_Interp *interp, Tcl_Command token,
+	    Tcl_Obj **paramListPtr)
+}
+
+# TIP#265 (option parser) dkf for Sam Bromley
+declare 604 {
+    int TclParseArgsObjv(Tcl_Interp *interp, const Tcl_ArgvInfo *argTable,
+	    void *objcPtr, Tcl_Obj *const *objv, Tcl_Obj ***remObjv)
+}
+
+# TIP#336 (manipulate the error line) dgp
+declare 605 {
+    int Tcl_GetErrorLine(Tcl_Interp *interp)
+}
+declare 606 {
+    void Tcl_SetErrorLine(Tcl_Interp *interp, int lineNum)
+}
+
+# TIP#307 (move results between interpreters) dkf
+declare 607 {
+    void Tcl_TransferResult(Tcl_Interp *sourceInterp, int code,
+	    Tcl_Interp *targetInterp)
+}
+
+# TIP#335 (detect if interpreter in use) jmistachkin
+declare 608 {
+    int Tcl_InterpActive(Tcl_Interp *interp)
+}
+
+# TIP#337 (log exception for background processing) dgp
+declare 609 {
+    void Tcl_BackgroundException(Tcl_Interp *interp, int code)
+}
+
+# TIP#234 (zlib interface) dkf/Pascal Scheffers
+declare 610 {
+    int Tcl_ZlibDeflate(Tcl_Interp *interp, int format, Tcl_Obj *data,
+	    int level, Tcl_Obj *gzipHeaderDictObj)
+}
+declare 611 {
+    int Tcl_ZlibInflate(Tcl_Interp *interp, int format, Tcl_Obj *data,
+	    Tcl_Size buffersize, Tcl_Obj *gzipHeaderDictObj)
+}
+declare 612 {
+    unsigned int Tcl_ZlibCRC32(unsigned int crc, const unsigned char *buf,
+	    Tcl_Size len)
+}
+declare 613 {
+    unsigned int Tcl_ZlibAdler32(unsigned int adler, const unsigned char *buf,
+	    Tcl_Size len)
+}
+declare 614 {
+    int Tcl_ZlibStreamInit(Tcl_Interp *interp, int mode, int format,
+	    int level, Tcl_Obj *dictObj, Tcl_ZlibStream *zshandle)
+}
+declare 615 {
+    Tcl_Obj *Tcl_ZlibStreamGetCommandName(Tcl_ZlibStream zshandle)
+}
+declare 616 {
+    int Tcl_ZlibStreamEof(Tcl_ZlibStream zshandle)
+}
+declare 617 {
+    int Tcl_ZlibStreamChecksum(Tcl_ZlibStream zshandle)
+}
+declare 618 {
+    int Tcl_ZlibStreamPut(Tcl_ZlibStream zshandle, Tcl_Obj *data, int flush)
+}
+declare 619 {
+    int Tcl_ZlibStreamGet(Tcl_ZlibStream zshandle, Tcl_Obj *data,
+	    Tcl_Size count)
+}
+declare 620 {
+    int Tcl_ZlibStreamClose(Tcl_ZlibStream zshandle)
+}
+declare 621 {
+    int Tcl_ZlibStreamReset(Tcl_ZlibStream zshandle)
+}
+
+# TIP 338 (control over startup script) dgp
+declare 622 {
+    void Tcl_SetStartupScript(Tcl_Obj *path, const char *encoding)
+}
+declare 623 {
+    Tcl_Obj *Tcl_GetStartupScript(const char **encodingPtr)
+}
+
+# TIP#332 (half-close made public) aferrieux
+declare 624 {
+    int Tcl_CloseEx(Tcl_Interp *interp, Tcl_Channel chan, int flags)
+}
+
+# TIP #353 (NR-enabled expressions) dgp
+declare 625 {
+    int Tcl_NRExprObj(Tcl_Interp *interp, Tcl_Obj *objPtr, Tcl_Obj *resultPtr)
+}
+
+# TIP #356 (NR-enabled substitution) dgp
+declare 626 {
+    int Tcl_NRSubstObj(Tcl_Interp *interp, Tcl_Obj *objPtr, int flags)
+}
+
+# TIP #357 (Export TclLoadFile and TclpFindSymbol) kbk
+declare 627 {
+    int Tcl_LoadFile(Tcl_Interp *interp, Tcl_Obj *pathPtr,
+		     const char *const symv[], int flags, void *procPtrs,
+		     Tcl_LoadHandle *handlePtr)
+}
+declare 628 {
+    void *Tcl_FindSymbol(Tcl_Interp *interp, Tcl_LoadHandle handle,
+			 const char *symbol)
+}
+declare 629 {
+    int Tcl_FSUnloadFile(Tcl_Interp *interp, Tcl_LoadHandle handlePtr)
+}
+
+# TIP #400
+declare 630 {
+    void Tcl_ZlibStreamSetCompressionDictionary(Tcl_ZlibStream zhandle,
+	    Tcl_Obj *compressionDictionaryObj)
+}
+
+# ----- BASELINE -- FOR -- 8.6.0 ----- #
+
+# TIP #456/#468
+declare 631 {
+    Tcl_Channel Tcl_OpenTcpServerEx(Tcl_Interp *interp, const char *service,
+	    const char *host, unsigned int flags, int backlog,
+	    Tcl_TcpAcceptProc *acceptProc, void *callbackData)
+}
+
+# TIP #430
+declare 632 {
+    int TclZipfs_Mount(Tcl_Interp *interp, const char *zipname,
+	    const char *mountPoint, const char *passwd)
+}
+declare 633 {
+    int TclZipfs_Unmount(Tcl_Interp *interp, const char *mountPoint)
+}
+declare 634 {
+    Tcl_Obj *TclZipfs_TclLibrary(void)
+}
+declare 635 {
+    int TclZipfs_MountBuffer(Tcl_Interp *interp, const void *data,
+	    size_t datalen, const char *mountPoint, int copy)
+}
+
+# TIP #445
+declare 636 {
+    void Tcl_FreeInternalRep(Tcl_Obj *objPtr)
+}
+declare 637 {
+    char *Tcl_InitStringRep(Tcl_Obj *objPtr, const char *bytes,
+	    size_t numBytes)
+}
+declare 638 {
+    Tcl_ObjInternalRep *Tcl_FetchInternalRep(Tcl_Obj *objPtr, const Tcl_ObjType *typePtr)
+}
+declare 639 {
+    void Tcl_StoreInternalRep(Tcl_Obj *objPtr, const Tcl_ObjType *typePtr,
+	    const Tcl_ObjInternalRep *irPtr)
+}
+declare 640 {
+    int Tcl_HasStringRep(Tcl_Obj *objPtr)
+}
+
+# TIP #506
+declare 641 {
+    void Tcl_IncrRefCount(Tcl_Obj *objPtr)
+}
+
+declare 642 {
+    void Tcl_DecrRefCount(Tcl_Obj *objPtr)
+}
+
+declare 643 {
+    int Tcl_IsShared(Tcl_Obj *objPtr)
+}
+
+# TIP#312 New Tcl_LinkArray() function
+declare 644 {
+    int Tcl_LinkArray(Tcl_Interp *interp, const char *varName, void *addr,
+	    int type, Tcl_Size size)
+}
+
+declare 645 {
+    int Tcl_GetIntForIndex(Tcl_Interp *interp, Tcl_Obj *objPtr,
+	    Tcl_Size endValue, Tcl_Size *indexPtr)
+}
+
+# TIP #548
+declare 646 {
+    Tcl_Size Tcl_UtfToUniChar(const char *src, int *chPtr)
+}
+declare 647 {
+    char *Tcl_UniCharToUtfDString(const int *uniStr,
+	    Tcl_Size uniLength, Tcl_DString *dsPtr)
+}
+declare 648 {
+    int *Tcl_UtfToUniCharDString(const char *src,
+	    Tcl_Size length, Tcl_DString *dsPtr)
+}
+
+# TIP #568
+declare 649 {
+    unsigned char *TclGetBytesFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
+	    void *numBytesPtr)
+}
+declare 650 {
+    unsigned char *Tcl_GetBytesFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
+	    Tcl_Size *numBytesPtr)
+}
+
+# TIP #481
+declare 651 {
+    char *Tcl_GetStringFromObj(Tcl_Obj *objPtr, Tcl_Size *lengthPtr)
+}
+declare 652 {
+    Tcl_UniChar *Tcl_GetUnicodeFromObj(Tcl_Obj *objPtr, Tcl_Size *lengthPtr)
+}
+
+# TIP 660
+declare 653 {
+    int Tcl_GetSizeIntFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
+	    Tcl_Size *sizePtr)
+}
+
+# TIP #575
+declare 654 {
+    int Tcl_UtfCharComplete(const char *src, Tcl_Size length)
+}
+declare 655 {
+    const char *Tcl_UtfNext(const char *src)
+}
+declare 656 {
+    const char *Tcl_UtfPrev(const char *src, const char *start)
+}
+
+# TIP 701
+declare 657 {
+    int Tcl_FSTildeExpand(Tcl_Interp *interp, const char *path,
+	Tcl_DString *dsPtr)
+}
+
+# TIP 656
+declare 658 {
+    int Tcl_ExternalToUtfDStringEx(Tcl_Interp *interp, Tcl_Encoding encoding,
+	    const char *src, Tcl_Size srcLen, int flags, Tcl_DString *dsPtr,
+	    Tcl_Size *errorLocationPtr)
+}
+declare 659 {
+    int Tcl_UtfToExternalDStringEx(Tcl_Interp *interp, Tcl_Encoding encoding,
+	    const char *src, Tcl_Size srcLen, int flags, Tcl_DString *dsPtr,
+	    Tcl_Size *errorLocationPtr)
+}
+
+# TIP #511
+declare 660 {
+    int Tcl_AsyncMarkFromSignal(Tcl_AsyncHandler async, int sigNumber)
+}
+
+# TIP #616
+declare 661 {
+    int Tcl_ListObjGetElements(Tcl_Interp *interp, Tcl_Obj *listPtr,
+	    Tcl_Size *objcPtr, Tcl_Obj ***objvPtr)
+}
+declare 662 {
+    int Tcl_ListObjLength(Tcl_Interp *interp, Tcl_Obj *listPtr,
+	    Tcl_Size *lengthPtr)
+}
+declare 663 {
+    int Tcl_DictObjSize(Tcl_Interp *interp, Tcl_Obj *dictPtr, Tcl_Size *sizePtr)
+}
+declare 664 {
+    int Tcl_SplitList(Tcl_Interp *interp, const char *listStr, Tcl_Size *argcPtr,
+	    const char ***argvPtr)
+}
+declare 665 {
+    void Tcl_SplitPath(const char *path, Tcl_Size *argcPtr, const char ***argvPtr)
+}
+declare 666 {
+    Tcl_Obj *Tcl_FSSplitPath(Tcl_Obj *pathPtr, Tcl_Size *lenPtr)
+}
+declare 667 {
+    int Tcl_ParseArgsObjv(Tcl_Interp *interp, const Tcl_ArgvInfo *argTable,
+	    Tcl_Size *objcPtr, Tcl_Obj *const *objv, Tcl_Obj ***remObjv)
+}
+
+# TIP #617
+declare 668 {
+    Tcl_Size Tcl_UniCharLen(const int *uniStr)
+}
+declare 669 {
+    Tcl_Size Tcl_NumUtfChars(const char *src, Tcl_Size length)
+}
+declare 670 {
+    Tcl_Size Tcl_GetCharLength(Tcl_Obj *objPtr)
+}
+declare 671 {
+    const char *Tcl_UtfAtIndex(const char *src, Tcl_Size index)
+}
+declare 672 {
+    Tcl_Obj *Tcl_GetRange(Tcl_Obj *objPtr, Tcl_Size first, Tcl_Size last)
+}
+declare 673 {
+    int Tcl_GetUniChar(Tcl_Obj *objPtr, Tcl_Size index)
+}
+
+declare 674 {
+    int Tcl_GetBool(Tcl_Interp *interp, const char *src, int flags,
+	    char *charPtr)
+}
+declare 675 {
+    int Tcl_GetBoolFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
+	    int flags, char *charPtr)
+}
+declare 676 {
+    Tcl_Command Tcl_CreateObjCommand2(Tcl_Interp *interp,
+	    const char *cmdName,
+	    Tcl_ObjCmdProc2 *proc2, void *clientData,
+	    Tcl_CmdDeleteProc *deleteProc)
+}
+declare 677 {
+    Tcl_Trace Tcl_CreateObjTrace2(Tcl_Interp *interp, Tcl_Size level, int flags,
+	    Tcl_CmdObjTraceProc2 *objProc2, void *clientData,
+	    Tcl_CmdObjTraceDeleteProc *delProc)
+}
+declare 678 {
+    Tcl_Command Tcl_NRCreateCommand2(Tcl_Interp *interp,
+	    const char *cmdName, Tcl_ObjCmdProc2 *proc,
+	    Tcl_ObjCmdProc2 *nreProc2, void *clientData,
+	    Tcl_CmdDeleteProc *deleteProc)
+}
+declare 679 {
+    int Tcl_NRCallObjProc2(Tcl_Interp *interp, Tcl_ObjCmdProc2 *objProc2,
+	    void *clientData, Tcl_Size objc, Tcl_Obj *const objv[])
+}
+
+# TIP #638.
+declare 680 {
+    int Tcl_GetNumberFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
+	    void **clientDataPtr, int *typePtr)
+}
+declare 681 {
+    int Tcl_GetNumber(Tcl_Interp *interp, const char *bytes, Tcl_Size numBytes,
+	    void **clientDataPtr, int *typePtr)
+}
+
+# TIP #220.
 declare 682 {
+    int Tcl_RemoveChannelMode(Tcl_Interp *interp, Tcl_Channel chan, int mode)
+}
+
+# TIP 643
+declare 683 {
+   Tcl_Size Tcl_GetEncodingNulLength(Tcl_Encoding encoding)
+}
+
+# TIP #650
+declare 684 {
+    int Tcl_GetWideUIntFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
+	    Tcl_WideUInt *uwidePtr)
+}
+
+# TIP 651
+declare 685 {
+    Tcl_Obj *Tcl_DStringToObj(Tcl_DString *dsPtr)
+}
+
+declare 686 {
+    int Tcl_UtfNcmp(const char *s1, const char *s2, size_t n)
+}
+declare 687 {
+    int Tcl_UtfNcasecmp(const char *s1, const char *s2, size_t n)
+}
+
+# TIP #648
+declare 688 {
+    Tcl_Obj *Tcl_NewWideUIntObj(Tcl_WideUInt wideValue)
+}
+declare 689 {
+    void Tcl_SetWideUIntObj(Tcl_Obj *objPtr, Tcl_WideUInt uwideValue)
+}
+
+# ----- BASELINE -- FOR -- 8.7.0 / 9.0.0 ----- #
+
+declare 690 {
+    int Tcl_IsEmpty(Tcl_Obj *obj)
+}
+
+# ----- BASELINE -- FOR -- 9.1.0 ----- #
+
+declare 691 {
     void TclUnusedStubEntry(void)
 }
 
@@ -2127,32 +2384,21 @@ interface tclPlat
 #   (none)
 
 ################################
-# Windows specific functions
-
-# Added in Tcl 8.1
-
-declare 0 win {
-    TCHAR *Tcl_WinUtfToTChar(const char *str, int len, Tcl_DString *dsPtr)
-}
-declare 1 win {
-    char *Tcl_WinTCharToUtf(const TCHAR *str, int len, Tcl_DString *dsPtr)
-}
-
-################################
 # Mac OS X specific functions
 
-declare 0 macosx {
-    int Tcl_MacOSXOpenBundleResources(Tcl_Interp *interp,
-	    const char *bundleName, int hasResourceFile,
-	    int maxPathLen, char *libraryPath)
-}
-declare 1 macosx {
+declare 1 {
     int Tcl_MacOSXOpenVersionedBundleResources(Tcl_Interp *interp,
 	    const char *bundleName, const char *bundleVersion,
-	    int hasResourceFile, int maxPathLen, char *libraryPath)
+	    int hasResourceFile, Tcl_Size maxPathLen, char *libraryPath)
 }
-declare 2 macosx {
-    void TclUnusedStubEntry(void)
+declare 2 {
+    void Tcl_MacOSXNotifierAddRunLoopMode(const void *runLoopMode)
+}
+
+################################
+# Windows specific functions
+declare 3 {
+    void Tcl_WinConvertError(unsigned errCode)
 }
 
 ##############################################################################
@@ -2160,7 +2406,21 @@ declare 2 macosx {
 # Public functions that are not accessible via the stubs table.
 
 export {
-    void Tcl_Main(int argc, char **argv, Tcl_AppInitProc *appInitProc)
+    TCL_NORETURN void Tcl_MainEx(Tcl_Size argc, char **argv, Tcl_AppInitProc *appInitProc,
+	Tcl_Interp *interp)
+}
+export {
+    void Tcl_StaticLibrary(Tcl_Interp *interp, const char *prefix,
+	    Tcl_LibraryInitProc *initProc, Tcl_LibraryInitProc *safeInitProc)
+}
+export {
+    const char *Tcl_SetPanicProc(Tcl_PanicProc *panicProc)
+}
+export {
+    Tcl_ExitProc *Tcl_SetExitProc(Tcl_ExitProc *proc)
+}
+export {
+    const char *Tcl_FindExecutable(const char *argv0)
 }
 export {
     const char *Tcl_InitStubs(Tcl_Interp *interp, const char *version,
@@ -2177,25 +2437,14 @@ export {
 export {
     void Tcl_GetMemoryInfo(Tcl_DString *dsPtr)
 }
-
-# Global variables that need to be exported from the tcl shared library.
-
-export {
-    TclStubs *tclStubsPtr                       (fool checkstubs)
-}
-export {
-    TclPlatStubs *tclPlatStubsPtr               (fool checkstubs)
-}
-export {
-    TclIntStubs *tclIntStubsPtr                 (fool checkstubs)
-}
 export {
-    TclIntPlatStubs *tclIntPlatStubsPtr         (fool checkstubs)
+    const char *Tcl_InitSubsystems(void)
 }
 export {
-    TclTomMathStubs *tclTomMathStubsPtr         (fool checkstubs)
+    const char *TclZipfs_AppHook(int *argc, char ***argv)
 }
 
+
 # Local Variables:
 # mode: tcl
 # End:
diff --git a/generic/tcl.h b/generic/tcl.h
index d71a333..06ca3b7 100644
--- a/generic/tcl.h
+++ b/generic/tcl.h
@@ -38,58 +38,28 @@ extern "C" {
  * update the version numbers:
  *
  * library/init.tcl	(1 LOC patch)
- * unix/configure.in	(2 LOC Major, 2 LOC minor, 1 LOC patch)
- * win/configure.in	(as above)
+ * unix/configure.ac	(2 LOC Major, 2 LOC minor, 1 LOC patch)
+ * win/configure.ac	(as above)
  * win/tcl.m4		(not patchlevel)
- * win/makefile.bc	(not patchlevel) 2 LOC
- * README		(sections 0 and 2, with and without separator)
- * macosx/Tcl.pbproj/project.pbxproj (not patchlevel) 1 LOC
- * macosx/Tcl.pbproj/default.pbxuser (not patchlevel) 1 LOC
- * macosx/Tcl.xcode/project.pbxproj (not patchlevel) 2 LOC
- * macosx/Tcl.xcode/default.pbxuser (not patchlevel) 1 LOC
- * macosx/Tcl-Common.xcconfig (not patchlevel) 1 LOC
+ * README.md		(sections 0 and 2, with and without separator)
  * win/README		(not patchlevel) (sections 0 and 2)
  * unix/tcl.spec	(1 LOC patch)
- * tools/tcl.hpj.in	(not patchlevel, for windows installer)
- * tools/tcl.wse.in	(for windows installer)
- * tools/tclSplash.bmp	(not patchlevel)
  */
 
-#define TCL_MAJOR_VERSION   8
-#define TCL_MINOR_VERSION   5
-#define TCL_RELEASE_LEVEL   TCL_FINAL_RELEASE
-#define TCL_RELEASE_SERIAL  19
-
-#define TCL_VERSION	    "8.5"
-#define TCL_PATCH_LEVEL	    "8.5.19"
-
-/*
- * The following definitions set up the proper options for Windows compilers.
- * We use this method because there is no autoconf equivalent.
- */
-
-#ifndef __WIN32__
-#   if defined(_WIN32) || defined(WIN32) || defined(__MSVCRT__) || defined(__BORLANDC__) || (defined(__WATCOMC__) && defined(__WINDOWS_386__))
-#	define __WIN32__
-#	ifndef WIN32
-#	    define WIN32
-#	endif
-#	ifndef _WIN32
-#	    define _WIN32
-#	endif
-#   endif
+#if !defined(TCL_MAJOR_VERSION)
+#   define TCL_MAJOR_VERSION	9
 #endif
+#if TCL_MAJOR_VERSION != 9
+#   error "This header-file is for Tcl 9 only"
+#endif
+#define TCL_MINOR_VERSION   1
+#define TCL_RELEASE_LEVEL   TCL_ALPHA_RELEASE
+#define TCL_RELEASE_SERIAL  0
 
-/*
- * STRICT: See MSDN Article Q83456
- */
-
-#ifdef __WIN32__
-#   ifndef STRICT
-#	define STRICT
-#   endif
-#endif /* __WIN32__ */
-
+#define TCL_VERSION	    "9.1"
+#define TCL_PATCH_LEVEL	    "9.1a0"
+
+#if defined(RC_INVOKED)
 /*
  * Utility macros: STRINGIFY takes an argument and wraps it in "" (double
  * quotation marks), JOIN joins two arguments.
@@ -103,6 +73,7 @@ extern "C" {
 #  define JOIN(a,b) JOIN1(a,b)
 #  define JOIN1(a,b) a##b
 #endif
+#endif /* RC_INVOKED */
 
 /*
  * A special definition used to allow this header file to be included from
@@ -116,15 +87,11 @@ extern "C" {
 #ifndef RC_INVOKED
 
 /*
- * Special macro to define mutexes, that doesn't do anything if we are not
- * using threads.
+ * Special macro to define mutexes.
  */
 
-#ifdef TCL_THREADS
-#define TCL_DECLARE_MUTEX(name) static Tcl_Mutex name;
-#else
-#define TCL_DECLARE_MUTEX(name)
-#endif
+#define TCL_DECLARE_MUTEX(name) \
+    static Tcl_Mutex name;
 
 /*
  * Tcl's public routine Tcl_FSSeek() uses the values SEEK_SET, SEEK_CUR, and
@@ -137,25 +104,48 @@ extern "C" {
  */
 
 #include <stdio.h>
+#include <stddef.h>
+
+#if defined(__GNUC__) && (__GNUC__ > 2)
+#   if defined(_WIN32) && defined(__USE_MINGW_ANSI_STDIO) && __USE_MINGW_ANSI_STDIO
+#	define TCL_FORMAT_PRINTF(a,b) __attribute__ ((__format__ (__MINGW_PRINTF_FORMAT, a, b)))
+#   else
+#	define TCL_FORMAT_PRINTF(a,b) __attribute__ ((__format__ (__printf__, a, b)))
+#   endif
+#   define TCL_NORETURN __attribute__ ((__noreturn__))
+#   define TCL_NOINLINE __attribute__ ((__noinline__))
+#   define TCL_NORETURN1 __attribute__ ((__noreturn__))
+#else
+#   define TCL_FORMAT_PRINTF(a,b)
+#   if defined(_MSC_VER)
+#	define TCL_NORETURN __declspec(noreturn)
+#	define TCL_NOINLINE __declspec(noinline)
+#   else
+#	define TCL_NORETURN /* nothing */
+#	define TCL_NOINLINE /* nothing */
+#   endif
+#   define TCL_NORETURN1 /* nothing */
+#endif
 
 /*
- * Support for functions with a variable number of arguments.
- *
- * The following TCL_VARARGS* macros are to support old extensions
- * written for older versions of Tcl where the macros permitted
- * support for the varargs.h system as well as stdarg.h .
+ * Allow a part of Tcl's API to be explicitly marked as deprecated.
  *
- * New code should just directly be written to use stdarg.h conventions.
+ * Used to make TIP 330/336 generate moans even if people use the
+ * compatibility macros. Change your code, guys! We won't support you forever.
  */
 
-#include <stdarg.h>
-#ifndef TCL_NO_DEPRECATED
-#    define TCL_VARARGS(type, name) (type name, ...)
-#    define TCL_VARARGS_DEF(type, name) (type name, ...)
-#    define TCL_VARARGS_START(type, name, list) (va_start(list, name), name)
+#if defined(__GNUC__) && ((__GNUC__ >= 4) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1)))
+#   if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5))
+#	define TCL_DEPRECATED_API(msg)	__attribute__ ((__deprecated__ (msg)))
+#   else
+#	define TCL_DEPRECATED_API(msg)	__attribute__ ((__deprecated__))
+#   endif
+#else
+#   define TCL_DEPRECATED_API(msg)	/* nothing portable */
 #endif
 
 /*
+ *----------------------------------------------------------------------------
  * Macros used to declare a function to be exported by a DLL. Used by Windows,
  * maps to no-op declarations on non-Windows systems. The default build on
  * windows is for a DLL, which causes the DLLIMPORT and DLLEXPORT macros to be
@@ -168,8 +158,7 @@ extern "C" {
  *       MSVCRT.
  */
 
-#if (defined(__WIN32__) && (defined(_MSC_VER) || (defined(__BORLANDC__) && (__BORLANDC__ >= 0x0550)) || defined(__LCC__) || defined(__WATCOMC__) || (defined(__GNUC__) && defined(__declspec))))
-#   define HAVE_DECLSPEC 1
+#ifdef _WIN32
 #   ifdef STATIC_BUILD
 #       define DLLIMPORT
 #       define DLLEXPORT
@@ -199,7 +188,7 @@ extern "C" {
  * to be included in a shared library, then it should have the DLLEXPORT
  * storage class. If is being declared for use by a module that is going to
  * link against the shared library, then it should have the DLLIMPORT storage
- * class. If the symbol is beind declared for a static build or for use from a
+ * class. If the symbol is being declared for a static build or for use from a
  * stub library, then the storage class should be empty.
  *
  * The convention is that a macro called BUILD_xxxx, where xxxx is the name of
@@ -220,43 +209,8 @@ extern "C" {
 #   endif
 #endif
 
-/*
- * Definitions that allow this header file to be used either with or without
- * ANSI C features like function prototypes.
- */
-
-#undef _ANSI_ARGS_
-#undef CONST
-#ifndef INLINE
-#   define INLINE
-#endif
-
-#ifndef NO_CONST
-#   define CONST const
-#else
-#   define CONST
-#endif
-
-#ifndef NO_PROTOTYPES
-#   define _ANSI_ARGS_(x)	x
-#else
-#   define _ANSI_ARGS_(x)	()
-#endif
-
-#ifdef USE_NON_CONST
-#   ifdef USE_COMPAT_CONST
-#      error define at most one of USE_NON_CONST and USE_COMPAT_CONST
-#   endif
-#   define CONST84
-#   define CONST84_RETURN
-#else
-#   ifdef USE_COMPAT_CONST
-#      define CONST84
-#      define CONST84_RETURN CONST
-#   else
-#      define CONST84 CONST
-#      define CONST84_RETURN CONST
-#   endif
+#if !defined(CONST86) && !defined(TCL_NO_DEPRECATED)
+#      define CONST86 const
 #endif
 
 /*
@@ -274,45 +228,10 @@ extern "C" {
 #endif
 
 /*
- * The following code is copied from winnt.h. If we don't replicate it here,
- * then <windows.h> can't be included after tcl.h, since tcl.h also defines
- * VOID. This block is skipped under Cygwin and Mingw.
- */
-
-#if defined(__WIN32__) && !defined(HAVE_WINNT_IGNORE_VOID)
-#ifndef VOID
-#define VOID void
-typedef char CHAR;
-typedef short SHORT;
-typedef long LONG;
-#endif
-#endif /* __WIN32__ && !HAVE_WINNT_IGNORE_VOID */
-
-/*
- * Macro to use instead of "void" for arguments that must have type "void *"
- * in ANSI C; maps them to type "char *" in non-ANSI systems.
- */
-
-#ifndef __VXWORKS__
-#   ifndef NO_VOID
-#	define VOID void
-#   else
-#	define VOID char
-#   endif
-#endif
-
-/*
  * Miscellaneous declarations.
  */
 
-#ifndef _CLIENTDATA
-#   ifndef NO_VOID
-	typedef void *ClientData;
-#   else
-	typedef int *ClientData;
-#   endif
-#   define _CLIENTDATA
-#endif
+typedef void *ClientData;
 
 /*
  * Darwin specific configure overrides (to support fat compiles, where
@@ -321,11 +240,9 @@ typedef long LONG;
 
 #ifdef __APPLE__
 #   ifdef __LP64__
-#	undef TCL_WIDE_INT_TYPE
 #	define TCL_WIDE_INT_IS_LONG 1
 #	define TCL_CFG_DO64BIT 1
 #    else /* !__LP64__ */
-#	define TCL_WIDE_INT_TYPE long long
 #	undef TCL_WIDE_INT_IS_LONG
 #	undef TCL_CFG_DO64BIT
 #    endif /* __LP64__ */
@@ -337,8 +254,6 @@ typedef long LONG;
  */
 #if defined(__GNUC__) && !defined(_WIN32) && !defined(__LP64__)
 #   undef TCL_WIDE_INT_IS_LONG
-#   undef TCL_WIDE_INT_TYPE
-#   define TCL_WIDE_INT_TYPE long long
 #endif
 
 /*
@@ -347,8 +262,8 @@ typedef long LONG;
  * we have one, we can have the other.)
  *
  * Also defines the following macros:
- * TCL_WIDE_INT_IS_LONG - if wide ints are really longs (i.e. we're on a real
- *	64-bit system.)
+ * TCL_WIDE_INT_IS_LONG - if wide ints are really longs (i.e. we're on a
+ *	LP64 system such as modern Solaris or Linux ... not including Win64)
  * Tcl_WideAsLong - forgetful converter from wideInt to long.
  * Tcl_LongAsWide - sign-extending converter from long to wideInt.
  * Tcl_WideAsDouble - converter from wideInt to double.
@@ -356,137 +271,88 @@ typedef long LONG;
  *
  * The following invariant should hold for any long value 'longVal':
  *	longVal == Tcl_WideAsLong(Tcl_LongAsWide(longVal))
- *
- * Note on converting between Tcl_WideInt and strings. This implementation (in
- * tclObj.c) depends on the function
- * sprintf(...,"%" TCL_LL_MODIFIER "d",...).
- */
-
-#if !defined(TCL_WIDE_INT_TYPE)&&!defined(TCL_WIDE_INT_IS_LONG)
-#   if defined(__WIN32__) && (!defined(__USE_MINGW_ANSI_STDIO) || !__USE_MINGW_ANSI_STDIO)
-#      define TCL_WIDE_INT_TYPE __int64
-#      ifdef __BORLANDC__
-#         define TCL_LL_MODIFIER	"L"
-#      else /* __BORLANDC__ */
-#         define TCL_LL_MODIFIER	"I64"
-#      endif /* __BORLANDC__ */
-#   elif defined(__GNUC__)
-#      define TCL_WIDE_INT_TYPE long long
-#      define TCL_LL_MODIFIER	"ll"
-#   else /* ! __WIN32__ && ! __GNUC__ */
+ */
+
+#if !defined(TCL_WIDE_INT_TYPE) && !defined(TCL_WIDE_INT_IS_LONG) && !defined(_WIN32) && !defined(__GNUC__)
 /*
  * Don't know what platform it is and configure hasn't discovered what is
  * going on for us. Try to guess...
  */
-#      ifdef NO_LIMITS_H
-#	  error please define either TCL_WIDE_INT_TYPE or TCL_WIDE_INT_IS_LONG
-#      else /* !NO_LIMITS_H */
-#	  include <limits.h>
-#	  if (INT_MAX < LONG_MAX)
-#	     define TCL_WIDE_INT_IS_LONG	1
-#	  else
-#	     define TCL_WIDE_INT_TYPE long long
-#         endif
-#      endif /* NO_LIMITS_H */
-#   endif /* __WIN32__ */
-#endif /* !TCL_WIDE_INT_TYPE & !TCL_WIDE_INT_IS_LONG */
-#ifdef TCL_WIDE_INT_IS_LONG
-#   undef TCL_WIDE_INT_TYPE
-#   define TCL_WIDE_INT_TYPE	long
-#endif /* TCL_WIDE_INT_IS_LONG */
+#   include <limits.h>
+#   if defined(LLONG_MAX) && (LLONG_MAX == LONG_MAX)
+#	define TCL_WIDE_INT_IS_LONG	1
+#   endif
+#endif
+
+#ifndef TCL_WIDE_INT_TYPE
+#   define TCL_WIDE_INT_TYPE		long long
+#endif /* !TCL_WIDE_INT_TYPE */
 
 typedef TCL_WIDE_INT_TYPE		Tcl_WideInt;
 typedef unsigned TCL_WIDE_INT_TYPE	Tcl_WideUInt;
 
-#ifdef TCL_WIDE_INT_IS_LONG
-#   define Tcl_WideAsLong(val)		((long)(val))
-#   define Tcl_LongAsWide(val)		((long)(val))
-#   define Tcl_WideAsDouble(val)	((double)((long)(val)))
-#   define Tcl_DoubleAsWide(val)	((long)((double)(val)))
-#   ifndef TCL_LL_MODIFIER
-#      define TCL_LL_MODIFIER		"l"
-#   endif /* !TCL_LL_MODIFIER */
-#else /* TCL_WIDE_INT_IS_LONG */
-/*
- * The next short section of defines are only done when not running on Windows
- * or some other strange platform.
- */
-#   ifndef TCL_LL_MODIFIER
-#      define TCL_LL_MODIFIER		"ll"
-#   endif /* !TCL_LL_MODIFIER */
-#   define Tcl_WideAsLong(val)		((long)((Tcl_WideInt)(val)))
-#   define Tcl_LongAsWide(val)		((Tcl_WideInt)((long)(val)))
-#   define Tcl_WideAsDouble(val)	((double)((Tcl_WideInt)(val)))
-#   define Tcl_DoubleAsWide(val)	((Tcl_WideInt)((double)(val)))
-#endif /* TCL_WIDE_INT_IS_LONG */
-
-#if defined(__WIN32__)
-#   ifdef __BORLANDC__
-	typedef struct stati64 Tcl_StatBuf;
-#   elif defined(_WIN64) || defined(_USE_64BIT_TIME_T)
-	typedef struct __stat64 Tcl_StatBuf;
-#   elif (defined(_MSC_VER) && (_MSC_VER < 1400)) || defined(_USE_32BIT_TIME_T)
-	typedef struct _stati64	Tcl_StatBuf;
+#ifndef TCL_LL_MODIFIER
+#   if defined(_WIN32) && (!defined(__USE_MINGW_ANSI_STDIO) || !__USE_MINGW_ANSI_STDIO)
+#	define TCL_LL_MODIFIER	"I64"
+#   else
+#	define TCL_LL_MODIFIER	"ll"
+#   endif
+#endif /* !TCL_LL_MODIFIER */
+#ifndef TCL_Z_MODIFIER
+#   if defined(__GNUC__) && !defined(_WIN32)
+#	define TCL_Z_MODIFIER	"z"
+#   elif defined(_WIN64)
+#	define TCL_Z_MODIFIER	TCL_LL_MODIFIER
+#   else
+#	define TCL_Z_MODIFIER	""
+#   endif
+#endif /* !TCL_Z_MODIFIER */
+#ifndef TCL_T_MODIFIER
+#   if defined(__GNUC__) && !defined(_WIN32)
+#	define TCL_T_MODIFIER	"t"
+#   elif defined(_WIN64)
+#	define TCL_T_MODIFIER	TCL_LL_MODIFIER
 #   else
-	typedef struct _stat32i64 Tcl_StatBuf;
-#   endif /* _MSC_VER < 1400 */
+#	define TCL_T_MODIFIER	TCL_Z_MODIFIER
+#   endif
+#endif /* !TCL_T_MODIFIER */
+
+#define Tcl_WideAsLong(val)	((long)((Tcl_WideInt)(val)))
+#define Tcl_LongAsWide(val)	((Tcl_WideInt)((long)(val)))
+#define Tcl_WideAsDouble(val)	((double)((Tcl_WideInt)(val)))
+#define Tcl_DoubleAsWide(val)	((Tcl_WideInt)((double)(val)))
+
+typedef ptrdiff_t Tcl_Size;
+#define TCL_SIZE_MAX ((Tcl_Size)(((size_t)-1)>>1))
+#define TCL_SIZE_MODIFIER TCL_T_MODIFIER
+
+#ifdef _WIN32
+    typedef struct __stat64 Tcl_StatBuf;
 #elif defined(__CYGWIN__)
     typedef struct {
-	dev_t st_dev;
+	unsigned st_dev;
 	unsigned short st_ino;
 	unsigned short st_mode;
 	short st_nlink;
 	short st_uid;
 	short st_gid;
 	/* Here is a 2-byte gap */
-	dev_t st_rdev;
+	unsigned st_rdev;
 	/* Here is a 4-byte gap */
 	long long st_size;
 	struct {long tv_sec;} st_atim;
 	struct {long tv_sec;} st_mtim;
 	struct {long tv_sec;} st_ctim;
-	/* Here is a 4-byte gap */
     } Tcl_StatBuf;
-#elif defined(HAVE_STRUCT_STAT64) && !defined(__APPLE__)
-    typedef struct stat64 Tcl_StatBuf;
 #else
     typedef struct stat Tcl_StatBuf;
 #endif
 
 /*
+ *----------------------------------------------------------------------------
  * Data structures defined opaquely in this module. The definitions below just
- * provide dummy types. A few fields are made visible in Tcl_Interp
- * structures, namely those used for returning a string result from commands.
- * Direct access to the result field is discouraged in Tcl 8.0. The
- * interpreter result is either an object or a string, and the two values are
- * kept consistent unless some C code sets interp->result directly.
- * Programmers should use either the function Tcl_GetObjResult() or
- * Tcl_GetStringResult() to read the interpreter's result. See the SetResult
- * man page for details.
- *
- * Note: any change to the Tcl_Interp definition below must be mirrored in the
- * "real" definition in tclInt.h.
- *
- * Note: Tcl_ObjCmdProc functions do not directly set result and freeProc.
- * Instead, they set a Tcl_Obj member in the "real" structure that can be
- * accessed with Tcl_GetObjResult() and Tcl_SetObjResult().
- */
-
-typedef struct Tcl_Interp {
-    char *result;		/* If the last command returned a string
-				 * result, this points to it. */
-    void (*freeProc) _ANSI_ARGS_((char *blockPtr));
-				/* Zero means the string result is statically
-				 * allocated. TCL_DYNAMIC means it was
-				 * allocated with ckalloc and should be freed
-				 * with ckfree. Other values give the address
-				 * of function to invoke to free the result.
-				 * Tcl_Eval must free it before executing next
-				 * command. */
-    int errorLine;		/* When TCL_ERROR is returned, this gives the
-				 * line number within the command where the
-				 * error occurred (1 if first line). */
-} Tcl_Interp;
+ * provide dummy types.
+ */
 
 typedef struct Tcl_AsyncHandler_ *Tcl_AsyncHandler;
 typedef struct Tcl_Channel_ *Tcl_Channel;
@@ -497,6 +363,7 @@ typedef struct Tcl_Dict_ *Tcl_Dict;
 typedef struct Tcl_EncodingState_ *Tcl_EncodingState;
 typedef struct Tcl_Encoding_ *Tcl_Encoding;
 typedef struct Tcl_Event Tcl_Event;
+typedef struct Tcl_Interp Tcl_Interp;
 typedef struct Tcl_InterpState_ *Tcl_InterpState;
 typedef struct Tcl_LoadHandle_ *Tcl_LoadHandle;
 typedef struct Tcl_Mutex_ *Tcl_Mutex;
@@ -507,17 +374,19 @@ typedef struct Tcl_ThreadId_ *Tcl_ThreadId;
 typedef struct Tcl_TimerToken_ *Tcl_TimerToken;
 typedef struct Tcl_Trace_ *Tcl_Trace;
 typedef struct Tcl_Var_ *Tcl_Var;
+typedef struct Tcl_ZLibStream_ *Tcl_ZlibStream;
 
 /*
+ *----------------------------------------------------------------------------
  * Definition of the interface to functions implementing threads. A function
  * following this definition is given to each call of 'Tcl_CreateThread' and
  * will be called as the main fuction of the new thread created by that call.
  */
 
-#if defined __WIN32__
-typedef unsigned (__stdcall Tcl_ThreadCreateProc) _ANSI_ARGS_((ClientData clientData));
+#if defined _WIN32
+typedef unsigned (__stdcall Tcl_ThreadCreateProc) (void *clientData);
 #else
-typedef void (Tcl_ThreadCreateProc) _ANSI_ARGS_((ClientData clientData));
+typedef void (Tcl_ThreadCreateProc) (void *clientData);
 #endif
 
 /*
@@ -526,7 +395,7 @@ typedef void (Tcl_ThreadCreateProc) _ANSI_ARGS_((ClientData clientData));
  * in generic/tclThreadTest.c for it's usage.
  */
 
-#if defined __WIN32__
+#if defined _WIN32
 #   define Tcl_ThreadCreateType		unsigned __stdcall
 #   define TCL_THREAD_CREATE_RETURN	return 0
 #else
@@ -539,7 +408,7 @@ typedef void (Tcl_ThreadCreateProc) _ANSI_ARGS_((ClientData clientData));
  * given to Tcl_CreateThread.
  */
 
-#define TCL_THREAD_STACK_DEFAULT (0)    /* Use default size for stack. */
+#define TCL_THREAD_STACK_DEFAULT (0)	/* Use default size for stack. */
 #define TCL_THREAD_NOFLAGS	 (0000) /* Standard flags, default
 					 * behaviour. */
 #define TCL_THREAD_JOINABLE	 (0001) /* Mark the thread as joinable. */
@@ -573,7 +442,7 @@ typedef void (Tcl_ThreadCreateProc) _ANSI_ARGS_((ClientData clientData));
  * Flags values passed to Tcl_RegExpExecObj.
  */
 
-#define	TCL_REG_NOTBOL	0001	/* Beginning of string does not match ^.  */
+#define	TCL_REG_NOTBOL	0001	/* Beginning of string does not match ^. */
 #define	TCL_REG_NOTEOL	0002	/* End of string does not match $. */
 
 /*
@@ -583,19 +452,18 @@ typedef void (Tcl_ThreadCreateProc) _ANSI_ARGS_((ClientData clientData));
  */
 
 typedef struct Tcl_RegExpIndices {
-    long start;			/* Character offset of first character in
+    Tcl_Size start;		/* Character offset of first character in
 				 * match. */
-    long end;			/* Character offset of first character after
+    Tcl_Size end;		/* Character offset of first character after
 				 * the match. */
 } Tcl_RegExpIndices;
 
 typedef struct Tcl_RegExpInfo {
-    int nsubs;			/* Number of subexpressions in the compiled
+    Tcl_Size nsubs;		/* Number of subexpressions in the compiled
 				 * expression. */
     Tcl_RegExpIndices *matches;	/* Array of nsubs match offset pairs. */
-    long extendStart;		/* The offset at which a subsequent match
+    Tcl_Size extendStart;	/* The offset at which a subsequent match
 				 * might begin. */
-    long reserved;		/* Reserved for later use. */
 } Tcl_RegExpInfo;
 
 /*
@@ -607,6 +475,7 @@ typedef Tcl_StatBuf *Tcl_Stat_;
 typedef struct stat *Tcl_OldStat_;
 
 /*
+ *----------------------------------------------------------------------------
  * When a TCL command returns, the interpreter contains a result from the
  * command. Programmers are strongly encouraged to use one of the functions
  * Tcl_GetObjResult() or Tcl_GetStringResult() to read the interpreter's
@@ -624,6 +493,8 @@ typedef struct stat *Tcl_OldStat_;
  *			exited; the interpreter's result is meaningless.
  * TCL_CONTINUE		Go on to the next iteration of the current loop; the
  *			interpreter's result is meaningless.
+ * Integer return codes in the range TCL_CODE_USER_MIN to TCL_CODE_USER_MAX are
+ * reserved for the use of packages.
  */
 
 #define TCL_OK			0
@@ -631,10 +502,11 @@ typedef struct stat *Tcl_OldStat_;
 #define TCL_RETURN		2
 #define TCL_BREAK		3
 #define TCL_CONTINUE		4
-
-#define TCL_RESULT_SIZE		200
+#define TCL_CODE_USER_MIN	5
+#define TCL_CODE_USER_MAX	0x3fffffff /*  1073741823 */
 
 /*
+ *----------------------------------------------------------------------------
  * Flags to control what substitutions are performed by Tcl_SubstObj():
  */
 
@@ -644,22 +516,6 @@ typedef struct stat *Tcl_OldStat_;
 #define TCL_SUBST_ALL		007
 
 /*
- * Argument descriptors for math function callbacks in expressions:
- */
-
-typedef enum {
-    TCL_INT, TCL_DOUBLE, TCL_EITHER, TCL_WIDE_INT
-} Tcl_ValueType;
-
-typedef struct Tcl_Value {
-    Tcl_ValueType type;		/* Indicates intValue or doubleValue is valid,
-				 * or both. */
-    long intValue;		/* Integer value. */
-    double doubleValue;		/* Double-precision floating value. */
-    Tcl_WideInt wideValue;	/* Wide (min. 64-bit) integer value. */
-} Tcl_Value;
-
-/*
  * Forward declaration of Tcl_Obj to prevent an error when the forward
  * reference to Tcl_Obj is encountered in the function types declared below.
  */
@@ -667,84 +523,109 @@ typedef struct Tcl_Value {
 struct Tcl_Obj;
 
 /*
+ *----------------------------------------------------------------------------
  * Function types defined by Tcl:
  */
 
-typedef int (Tcl_AppInitProc) _ANSI_ARGS_((Tcl_Interp *interp));
-typedef int (Tcl_AsyncProc) _ANSI_ARGS_((ClientData clientData,
-	Tcl_Interp *interp, int code));
-typedef void (Tcl_ChannelProc) _ANSI_ARGS_((ClientData clientData, int mask));
-typedef void (Tcl_CloseProc) _ANSI_ARGS_((ClientData data));
-typedef void (Tcl_CmdDeleteProc) _ANSI_ARGS_((ClientData clientData));
-typedef int (Tcl_CmdProc) _ANSI_ARGS_((ClientData clientData,
-	Tcl_Interp *interp, int argc, CONST84 char *argv[]));
-typedef void (Tcl_CmdTraceProc) _ANSI_ARGS_((ClientData clientData,
-	Tcl_Interp *interp, int level, char *command, Tcl_CmdProc *proc,
-	ClientData cmdClientData, int argc, CONST84 char *argv[]));
-typedef int (Tcl_CmdObjTraceProc) _ANSI_ARGS_((ClientData clientData,
-	Tcl_Interp *interp, int level, CONST char *command,
-	Tcl_Command commandInfo, int objc, struct Tcl_Obj * CONST * objv));
-typedef void (Tcl_CmdObjTraceDeleteProc) _ANSI_ARGS_((ClientData clientData));
-typedef void (Tcl_DupInternalRepProc) _ANSI_ARGS_((struct Tcl_Obj *srcPtr,
-	struct Tcl_Obj *dupPtr));
-typedef int (Tcl_EncodingConvertProc)_ANSI_ARGS_((ClientData clientData,
-	CONST char *src, int srcLen, int flags, Tcl_EncodingState *statePtr,
-	char *dst, int dstLen, int *srcReadPtr, int *dstWrotePtr,
-	int *dstCharsPtr));
-typedef void (Tcl_EncodingFreeProc)_ANSI_ARGS_((ClientData clientData));
-typedef int (Tcl_EventProc) _ANSI_ARGS_((Tcl_Event *evPtr, int flags));
-typedef void (Tcl_EventCheckProc) _ANSI_ARGS_((ClientData clientData,
-	int flags));
-typedef int (Tcl_EventDeleteProc) _ANSI_ARGS_((Tcl_Event *evPtr,
-	ClientData clientData));
-typedef void (Tcl_EventSetupProc) _ANSI_ARGS_((ClientData clientData,
-	int flags));
-typedef void (Tcl_ExitProc) _ANSI_ARGS_((ClientData clientData));
-typedef void (Tcl_FileProc) _ANSI_ARGS_((ClientData clientData, int mask));
-typedef void (Tcl_FileFreeProc) _ANSI_ARGS_((ClientData clientData));
-typedef void (Tcl_FreeInternalRepProc) _ANSI_ARGS_((struct Tcl_Obj *objPtr));
-typedef void (Tcl_FreeProc) _ANSI_ARGS_((char *blockPtr));
-typedef void (Tcl_IdleProc) _ANSI_ARGS_((ClientData clientData));
-typedef void (Tcl_InterpDeleteProc) _ANSI_ARGS_((ClientData clientData,
-	Tcl_Interp *interp));
-typedef int (Tcl_MathProc) _ANSI_ARGS_((ClientData clientData,
-	Tcl_Interp *interp, Tcl_Value *args, Tcl_Value *resultPtr));
-typedef void (Tcl_NamespaceDeleteProc) _ANSI_ARGS_((ClientData clientData));
-typedef int (Tcl_ObjCmdProc) _ANSI_ARGS_((ClientData clientData,
-	Tcl_Interp *interp, int objc, struct Tcl_Obj * CONST * objv));
-typedef int (Tcl_PackageInitProc) _ANSI_ARGS_((Tcl_Interp *interp));
-typedef int (Tcl_PackageUnloadProc) _ANSI_ARGS_((Tcl_Interp *interp,
-	int flags));
-typedef void (Tcl_PanicProc) _ANSI_ARGS_((CONST char *format, ...));
-typedef void (Tcl_TcpAcceptProc) _ANSI_ARGS_((ClientData callbackData,
-	Tcl_Channel chan, char *address, int port));
-typedef void (Tcl_TimerProc) _ANSI_ARGS_((ClientData clientData));
-typedef int (Tcl_SetFromAnyProc) _ANSI_ARGS_((Tcl_Interp *interp,
-	struct Tcl_Obj *objPtr));
-typedef void (Tcl_UpdateStringProc) _ANSI_ARGS_((struct Tcl_Obj *objPtr));
-typedef char *(Tcl_VarTraceProc) _ANSI_ARGS_((ClientData clientData,
-	Tcl_Interp *interp, CONST84 char *part1, CONST84 char *part2,
-	int flags));
-typedef void (Tcl_CommandTraceProc) _ANSI_ARGS_((ClientData clientData,
-	Tcl_Interp *interp, CONST char *oldName, CONST char *newName,
-	int flags));
-typedef void (Tcl_CreateFileHandlerProc) _ANSI_ARGS_((int fd, int mask,
-	Tcl_FileProc *proc, ClientData clientData));
-typedef void (Tcl_DeleteFileHandlerProc) _ANSI_ARGS_((int fd));
-typedef void (Tcl_AlertNotifierProc) _ANSI_ARGS_((ClientData clientData));
-typedef void (Tcl_ServiceModeHookProc) _ANSI_ARGS_((int mode));
-typedef ClientData (Tcl_InitNotifierProc) _ANSI_ARGS_((VOID));
-typedef void (Tcl_FinalizeNotifierProc) _ANSI_ARGS_((ClientData clientData));
-typedef void (Tcl_MainLoopProc) _ANSI_ARGS_((void));
+typedef int (Tcl_AppInitProc) (Tcl_Interp *interp);
+typedef int (Tcl_AsyncProc) (void *clientData, Tcl_Interp *interp,
+	int code);
+typedef void (Tcl_ChannelProc) (void *clientData, int mask);
+typedef void (Tcl_CloseProc) (void *data);
+typedef void (Tcl_CmdDeleteProc) (void *clientData);
+typedef int (Tcl_CmdProc) (void *clientData, Tcl_Interp *interp,
+	int argc, const char *argv[]);
+typedef void (Tcl_CmdTraceProc) (void *clientData, Tcl_Interp *interp,
+	int level, char *command, Tcl_CmdProc *proc,
+	void *cmdClientData, int argc, const char *argv[]);
+typedef int (Tcl_CmdObjTraceProc) (void *clientData, Tcl_Interp *interp,
+	int level, const char *command, Tcl_Command commandInfo, int objc,
+	struct Tcl_Obj *const *objv);
+typedef void (Tcl_CmdObjTraceDeleteProc) (void *clientData);
+typedef void (Tcl_DupInternalRepProc) (struct Tcl_Obj *srcPtr,
+	struct Tcl_Obj *dupPtr);
+typedef int (Tcl_EncodingConvertProc) (void *clientData, const char *src,
+	int srcLen, int flags, Tcl_EncodingState *statePtr, char *dst,
+	int dstLen, int *srcReadPtr, int *dstWrotePtr, int *dstCharsPtr);
+typedef void (Tcl_EncodingFreeProc) (void *clientData);
+typedef int (Tcl_EventProc) (Tcl_Event *evPtr, int flags);
+typedef void (Tcl_EventCheckProc) (void *clientData, int flags);
+typedef int (Tcl_EventDeleteProc) (Tcl_Event *evPtr, void *clientData);
+typedef void (Tcl_EventSetupProc) (void *clientData, int flags);
+typedef void (Tcl_ExitProc) (void *clientData);
+typedef void (Tcl_FileProc) (void *clientData, int mask);
+typedef void (Tcl_FileFreeProc) (void *clientData);
+typedef void (Tcl_FreeInternalRepProc) (struct Tcl_Obj *objPtr);
+typedef void (Tcl_IdleProc) (void *clientData);
+typedef void (Tcl_InterpDeleteProc) (void *clientData,
+	Tcl_Interp *interp);
+typedef void (Tcl_NamespaceDeleteProc) (void *clientData);
+typedef int (Tcl_ObjCmdProc) (void *clientData, Tcl_Interp *interp,
+	int objc, struct Tcl_Obj *const *objv);
+typedef int (Tcl_ObjCmdProc2) (void *clientData, Tcl_Interp *interp,
+	Tcl_Size objc, struct Tcl_Obj *const *objv);
+typedef int (Tcl_CmdObjTraceProc2) (void *clientData, Tcl_Interp *interp,
+	Tcl_Size level, const char *command, Tcl_Command commandInfo, Tcl_Size objc,
+	struct Tcl_Obj *const *objv);
+typedef void (Tcl_FreeProc) (void *blockPtr);
+#define Tcl_ExitProc Tcl_FreeProc
+#define Tcl_FileFreeProc Tcl_FreeProc
+#define Tcl_FileFreeProc Tcl_FreeProc
+#define Tcl_EncodingFreeProc Tcl_FreeProc
+typedef int (Tcl_LibraryInitProc) (Tcl_Interp *interp);
+typedef int (Tcl_LibraryUnloadProc) (Tcl_Interp *interp, int flags);
+typedef void (Tcl_PanicProc) (const char *format, ...);
+typedef void (Tcl_TcpAcceptProc) (void *callbackData, Tcl_Channel chan,
+	char *address, int port);
+typedef void (Tcl_TimerProc) (void *clientData);
+typedef int (Tcl_SetFromAnyProc) (Tcl_Interp *interp, struct Tcl_Obj *objPtr);
+typedef void (Tcl_UpdateStringProc) (struct Tcl_Obj *objPtr);
+typedef char * (Tcl_VarTraceProc) (void *clientData, Tcl_Interp *interp,
+	const char *part1, const char *part2, int flags);
+typedef void (Tcl_CommandTraceProc) (void *clientData, Tcl_Interp *interp,
+	const char *oldName, const char *newName, int flags);
+typedef void (Tcl_CreateFileHandlerProc) (int fd, int mask, Tcl_FileProc *proc,
+	void *clientData);
+typedef void (Tcl_DeleteFileHandlerProc) (int fd);
+typedef void (Tcl_AlertNotifierProc) (void *clientData);
+typedef void (Tcl_ServiceModeHookProc) (int mode);
+typedef void *(Tcl_InitNotifierProc) (void);
+typedef void (Tcl_FinalizeNotifierProc) (void *clientData);
+typedef void (Tcl_MainLoopProc) (void);
+
+/* Abstract List functions */
+typedef Tcl_Size (Tcl_ObjTypeLengthProc) (struct Tcl_Obj *listPtr);
+typedef int (Tcl_ObjTypeIndexProc) (Tcl_Interp *interp, struct Tcl_Obj *listPtr,
+	Tcl_Size index, struct Tcl_Obj** elemObj);
+typedef int (Tcl_ObjTypeSliceProc) (Tcl_Interp *interp, struct Tcl_Obj *listPtr,
+	Tcl_Size fromIdx, Tcl_Size toIdx, struct Tcl_Obj **newObjPtr);
+typedef int (Tcl_ObjTypeReverseProc) (Tcl_Interp *interp,
+	struct Tcl_Obj *listPtr, struct Tcl_Obj **newObjPtr);
+typedef int (Tcl_ObjTypeGetElements) (Tcl_Interp *interp,
+	struct Tcl_Obj *listPtr, Tcl_Size *objcptr, struct Tcl_Obj ***objvptr);
+typedef	struct Tcl_Obj *(Tcl_ObjTypeSetElement) (Tcl_Interp *interp,
+	struct Tcl_Obj *listPtr, Tcl_Size indexCount,
+	struct Tcl_Obj *const indexArray[], struct Tcl_Obj *valueObj);
+typedef int (Tcl_ObjTypeReplaceProc) (Tcl_Interp *interp,
+	struct Tcl_Obj *listObj, Tcl_Size first, Tcl_Size numToDelete,
+	Tcl_Size numToInsert, struct Tcl_Obj *const insertObjs[]);
+typedef int (Tcl_ObjTypeInOperatorProc) (Tcl_Interp *interp,
+	struct Tcl_Obj *valueObj, struct Tcl_Obj *listObj, int *boolResult);
+
+#ifndef TCL_NO_DEPRECATED
+#   define Tcl_PackageInitProc Tcl_LibraryInitProc
+#   define Tcl_PackageUnloadProc Tcl_LibraryUnloadProc
+#endif
 
 /*
+ *----------------------------------------------------------------------------
  * The following structure represents a type of object, which is a particular
  * internal representation for an object plus a set of functions that provide
  * standard operations on objects of that type.
  */
 
 typedef struct Tcl_ObjType {
-    char *name;			/* Name of the type, e.g. "int". */
+    const char *name;		/* Name of the type, e.g. "int". */
     Tcl_FreeInternalRepProc *freeIntRepProc;
 				/* Called to free any storage for the type's
 				 * internal rep. NULL if the internal rep does
@@ -759,8 +640,65 @@ typedef struct Tcl_ObjType {
 				/* Called to convert the object's internal rep
 				 * to this type. Frees the internal rep of the
 				 * old type. Returns TCL_ERROR on failure. */
+    size_t version;		/* Version field for future-proofing. */
+
+    /* List emulation functions - ObjType Version 1 */
+    Tcl_ObjTypeLengthProc *lengthProc;
+				/* Return the [llength] of the AbstractList */
+    Tcl_ObjTypeIndexProc *indexProc;
+				/* Return a value (Tcl_Obj) at a given index */
+    Tcl_ObjTypeSliceProc *sliceProc;
+				/* Return an AbstractList for
+				 * [lrange $al $start $end] */
+    Tcl_ObjTypeReverseProc *reverseProc;
+				/* Return an AbstractList for [lreverse $al] */
+    Tcl_ObjTypeGetElements *getElementsProc;
+				/* Return an objv[] of all elements in the list */
+    Tcl_ObjTypeSetElement *setElementProc;
+				/* Replace the element at the indicies with the
+				 * given valueObj. */
+    Tcl_ObjTypeReplaceProc *replaceProc;
+				/* Replace sublist with another sublist */
+    Tcl_ObjTypeInOperatorProc *inOperProc;
+				/* "in" and "ni" expr list operation.
+				 * Determine if the given string value matches
+				 * an element in the list. */
 } Tcl_ObjType;
 
+#define TCL_OBJTYPE_V0 0, \
+	0,0,0,0,0,0,0,0 /* Pre-Tcl 9 */
+#define TCL_OBJTYPE_V1(a) offsetof(Tcl_ObjType, indexProc), \
+	a,0,0,0,0,0,0,0 /* Tcl 9 Version 1 */
+#define TCL_OBJTYPE_V2(a,b,c,d,e,f,g,h) sizeof(Tcl_ObjType),  \
+	a,b,c,d,e,f,g,h /* Tcl 9 - AbstractLists */
+
+/*
+ * The following structure stores an internal representation (internalrep) for
+ * a Tcl value. An internalrep is associated with an Tcl_ObjType when both
+ * are stored in the same Tcl_Obj.  The routines of the Tcl_ObjType govern
+ * the handling of the internalrep.
+ */
+
+typedef union Tcl_ObjInternalRep {/* The internal representation: */
+    long longValue;		/*   - an long integer value. */
+    double doubleValue;		/*   - a double-precision floating value. */
+    void *otherValuePtr;	/*   - another, type-specific value, */
+				/*     not used internally any more. */
+    Tcl_WideInt wideValue;	/*   - an integer value >= 64bits */
+    struct {			/*   - internal rep as two pointers. */
+	void *ptr1;
+	void *ptr2;
+    } twoPtrValue;
+    struct {			/*   - internal rep as a pointer and a long, */
+	void *ptr;		/*     not used internally any more. */
+	unsigned long value;
+    } ptrAndLongRep;
+    struct {			/*   - use for pointer and length reps */
+	void *ptr;
+	Tcl_Size size;
+    } ptrAndSize;
+} Tcl_ObjInternalRep;
+
 /*
  * One of the following structures exists for each object in the Tcl system.
  * An object stores a value as either a string, some internal representation,
@@ -768,71 +706,30 @@ typedef struct Tcl_ObjType {
  */
 
 typedef struct Tcl_Obj {
-    int refCount;		/* When 0 the object will be freed. */
+    Tcl_Size refCount;		/* When 0 the object will be freed. */
     char *bytes;		/* This points to the first byte of the
 				 * object's string representation. The array
 				 * must be followed by a null byte (i.e., at
 				 * offset length) but may also contain
 				 * embedded null characters. The array's
-				 * storage is allocated by ckalloc. NULL means
+				 * storage is allocated by Tcl_Alloc. NULL means
 				 * the string rep is invalid and must be
 				 * regenerated from the internal rep.  Clients
 				 * should use Tcl_GetStringFromObj or
 				 * Tcl_GetString to get a pointer to the byte
 				 * array as a readonly value. */
-    int length;			/* The number of bytes at *bytes, not
+    Tcl_Size length;		/* The number of bytes at *bytes, not
 				 * including the terminating null. */
-    Tcl_ObjType *typePtr;	/* Denotes the object's type. Always
+    const Tcl_ObjType *typePtr;	/* Denotes the object's type. Always
 				 * corresponds to the type of the object's
 				 * internal rep. NULL indicates the object has
 				 * no internal rep (has no type). */
-    union {			/* The internal representation: */
-	long longValue;		/*   - an long integer value. */
-	double doubleValue;	/*   - a double-precision floating value. */
-	VOID *otherValuePtr;	/*   - another, type-specific value. */
-	Tcl_WideInt wideValue;	/*   - a long long value. */
-	struct {		/*   - internal rep as two pointers. */
-	    VOID *ptr1;
-	    VOID *ptr2;
-	} twoPtrValue;
-	struct {		/*   - internal rep as a wide int, tightly
-				 *     packed fields. */
-	    VOID *ptr;		/* Pointer to digits. */
-	    unsigned long value;/* Alloc, used, and signum packed into a
-				 * single word. */
-	} ptrAndLongRep;
-    } internalRep;
+    Tcl_ObjInternalRep internalRep;
+				/* The internal representation: */
 } Tcl_Obj;
-
-/*
- * Macros to increment and decrement a Tcl_Obj's reference count, and to test
- * whether an object is shared (i.e. has reference count > 1). Note: clients
- * should use Tcl_DecrRefCount() when they are finished using an object, and
- * should never call TclFreeObj() directly. TclFreeObj() is only defined and
- * made public in tcl.h to support Tcl_DecrRefCount's macro definition.
- */
-
-void		Tcl_IncrRefCount _ANSI_ARGS_((Tcl_Obj *objPtr));
-void		Tcl_DecrRefCount _ANSI_ARGS_((Tcl_Obj *objPtr));
-int		Tcl_IsShared _ANSI_ARGS_((Tcl_Obj *objPtr));
-
-/*
- * The following structure contains the state needed by Tcl_SaveResult. No-one
- * outside of Tcl should access any of these fields. This structure is
- * typically allocated on the stack.
- */
-
-typedef struct Tcl_SavedResult {
-    char *result;
-    Tcl_FreeProc *freeProc;
-    Tcl_Obj *objResultPtr;
-    char *appendResult;
-    int appendAvl;
-    int appendUsed;
-    char resultSpace[TCL_RESULT_SIZE+1];
-} Tcl_SavedResult;
-
+
 /*
+ *----------------------------------------------------------------------------
  * The following definitions support Tcl's namespace facility. Note: the first
  * five fields must match exactly the fields in a Namespace structure (see
  * tclInt.h).
@@ -845,7 +742,7 @@ typedef struct Tcl_Namespace {
 				 * is an synonym. */
     char *fullName;		/* The namespace's fully qualified name. This
 				 * starts with ::. */
-    ClientData clientData;	/* Arbitrary value associated with this
+    void *clientData;		/* Arbitrary value associated with this
 				 * namespace. */
     Tcl_NamespaceDeleteProc *deleteProc;
 				/* Function invoked when deleting the
@@ -857,6 +754,7 @@ typedef struct Tcl_Namespace {
 } Tcl_Namespace;
 
 /*
+ *----------------------------------------------------------------------------
  * The following structure represents a call frame, or activation record. A
  * call frame defines a naming context for a procedure call: its local scope
  * (for local variables) and its namespace scope (used for non-local
@@ -879,23 +777,24 @@ typedef struct Tcl_Namespace {
  */
 
 typedef struct Tcl_CallFrame {
-    Tcl_Namespace *nsPtr;
+    Tcl_Namespace *nsPtr;	/* Current namespace for the call frame. */
     int dummy1;
-    int dummy2;
-    VOID *dummy3;
-    VOID *dummy4;
-    VOID *dummy5;
-    int dummy6;
-    VOID *dummy7;
-    VOID *dummy8;
-    int dummy9;
-    VOID *dummy10;
-    VOID *dummy11;
-    VOID *dummy12;
-    VOID *dummy13;
+    Tcl_Size dummy2;
+    void *dummy3;
+    void *dummy4;
+    void *dummy5;
+    Tcl_Size dummy6;
+    void *dummy7;
+    void *dummy8;
+    Tcl_Size dummy9;
+    void *dummy10;
+    void *dummy11;
+    void *dummy12;
+    void *dummy13;
 } Tcl_CallFrame;
 
 /*
+ *----------------------------------------------------------------------------
  * Information about commands that is returned by Tcl_GetCommandInfo and
  * passed to Tcl_SetCommandInfo. objProc is an objc/objv object-based command
  * function while proc is a traditional Tcl argc/argv string-based function.
@@ -909,28 +808,31 @@ typedef struct Tcl_CallFrame {
  * then calls the other function.
  */
 
-typedef struct Tcl_CmdInfo {
+typedef struct {
     int isNativeObjectProc;	/* 1 if objProc was registered by a call to
-				 * Tcl_CreateObjCommand; 0 otherwise.
-				 * Tcl_SetCmdInfo does not modify this
-				 * field. */
+				 * Tcl_CreateObjCommand; 2 if objProc was registered by
+				 * a call to Tcl_CreateObjCommand2; 0 otherwise.
+				 * Tcl_SetCmdInfo does not modify this field. */
     Tcl_ObjCmdProc *objProc;	/* Command's object-based function. */
-    ClientData objClientData;	/* ClientData for object proc. */
+    void *objClientData;	/* ClientData for object proc. */
     Tcl_CmdProc *proc;		/* Command's string-based function. */
-    ClientData clientData;	/* ClientData for string proc. */
+    void *clientData;		/* ClientData for string proc. */
     Tcl_CmdDeleteProc *deleteProc;
 				/* Function to call when command is
 				 * deleted. */
-    ClientData deleteData;	/* Value to pass to deleteProc (usually the
+    void *deleteData;		/* Value to pass to deleteProc (usually the
 				 * same as clientData). */
     Tcl_Namespace *namespacePtr;/* Points to the namespace that contains this
 				 * command. Note that Tcl_SetCmdInfo will not
 				 * change a command's namespace; use
 				 * TclRenameCommand or Tcl_Eval (of 'rename')
 				 * to do that. */
+    Tcl_ObjCmdProc2 *objProc2;	/* Command's object2-based function. */
+    void *objClientData2;	/* ClientData for object2 proc. */
 } Tcl_CmdInfo;
 
 /*
+ *----------------------------------------------------------------------------
  * The structure defined below is used to hold dynamic strings. The only
  * fields that clients should use are string and length, accessible via the
  * macros Tcl_DStringValue and Tcl_DStringLength.
@@ -940,9 +842,9 @@ typedef struct Tcl_CmdInfo {
 typedef struct Tcl_DString {
     char *string;		/* Points to beginning of string: either
 				 * staticSpace below or a malloced array. */
-    int length;			/* Number of non-NULL characters in the
-				 * string. */
-    int spaceAvl;		/* Total number of bytes available for the
+    Tcl_Size length;		/* Number of bytes in string excluding
+				 * terminating nul */
+    Tcl_Size spaceAvl;		/* Total number of bytes available for the
 				 * string and its terminating NULL char. */
     char staticSpace[TCL_DSTRING_STATIC_SIZE];
 				/* Space to use in common case where string is
@@ -951,12 +853,11 @@ typedef struct Tcl_DString {
 
 #define Tcl_DStringLength(dsPtr) ((dsPtr)->length)
 #define Tcl_DStringValue(dsPtr) ((dsPtr)->string)
-#define Tcl_DStringTrunc Tcl_DStringSetLength
 
 /*
  * Definitions for the maximum number of digits of precision that may be
- * specified in the "tcl_precision" variable, and the number of bytes of
- * buffer space required by Tcl_PrintDouble.
+ * produced by Tcl_PrintDouble, and the number of bytes of buffer space
+ * required by Tcl_PrintDouble.
  */
 
 #define TCL_MAX_PREC		17
@@ -968,7 +869,21 @@ typedef struct Tcl_DString {
  * 64-bit integers).
  */
 
-#define TCL_INTEGER_SPACE	24
+#define TCL_INTEGER_SPACE	(3*(int)sizeof(Tcl_WideInt))
+
+/*
+ *----------------------------------------------------------------------------
+ * Type values returned by Tcl_GetNumberFromObj
+ *	TCL_NUMBER_INT		Representation is a Tcl_WideInt
+ *	TCL_NUMBER_BIG		Representation is an mp_int
+ *	TCL_NUMBER_DOUBLE	Representation is a double
+ *	TCL_NUMBER_NAN		Value is NaN.
+ */
+
+#define TCL_NUMBER_INT          2
+#define TCL_NUMBER_BIG          3
+#define TCL_NUMBER_DOUBLE       4
+#define TCL_NUMBER_NAN          5
 
 /*
  * Flag values passed to Tcl_ConvertElement.
@@ -984,13 +899,26 @@ typedef struct Tcl_DString {
 #define TCL_DONT_QUOTE_HASH	8
 
 /*
- * Flag that may be passed to Tcl_GetIndexFromObj to force it to disallow
- * abbreviated strings.
+ * Flags that may be passed to Tcl_GetIndexFromObj.
+ * TCL_EXACT disallows abbreviated strings.
+ * TCL_NULL_OK allows the empty string or NULL to return TCL_OK.
+ *      The returned value will be -1;
+ * TCL_INDEX_TEMP_TABLE disallows caching of lookups. A possible use case is
+ *      a table that will not live long enough to make it worthwhile.
  */
 
-#define TCL_EXACT	1
+#define TCL_EXACT		1
+#define TCL_NULL_OK		32
+#define TCL_INDEX_TEMP_TABLE	64
+
+/*
+ * Flags that may be passed to Tcl_UniCharToUtf.
+ * TCL_COMBINE Combine surrogates
+ */
 
+#define TCL_COMBINE		0x1000000
 /*
+ *----------------------------------------------------------------------------
  * Flag values passed to Tcl_RecordAndEval, Tcl_EvalObj, Tcl_EvalObjv.
  * WARNING: these bit choices must not conflict with the bit choices for
  * evalFlag bits in tclInt.h!
@@ -1004,11 +932,19 @@ typedef struct Tcl_DString {
  *				o Cut out of error traces
  *				o Don't reset the flags controlling ensemble
  *				  error message rewriting.
+ *	TCL_CANCEL_UNWIND:	Magical Tcl_CancelEval mode that causes the
+ *				stack for the script in progress to be
+ *				completely unwound.
+ *	TCL_EVAL_NOERR:		Do no exception reporting at all, just return
+ *				as the caller will report.
  */
-#define TCL_NO_EVAL		0x10000
-#define TCL_EVAL_GLOBAL		0x20000
-#define TCL_EVAL_DIRECT		0x40000
-#define TCL_EVAL_INVOKE		0x80000
+
+#define TCL_NO_EVAL		0x010000
+#define TCL_EVAL_GLOBAL		0x020000
+#define TCL_EVAL_DIRECT		0x040000
+#define TCL_EVAL_INVOKE		0x080000
+#define TCL_CANCEL_UNWIND	0x100000
+#define TCL_EVAL_NOERR          0x200000
 
 /*
  * Special freeProc values that may be passed to Tcl_SetResult (see the man
@@ -1021,6 +957,8 @@ typedef struct Tcl_DString {
 
 /*
  * Flag values passed to variable-related functions.
+ * WARNING: these bit choices must not conflict with the bit choice for
+ * TCL_CANCEL_UNWIND, above.
  */
 
 #define TCL_GLOBAL_ONLY		 1
@@ -1031,14 +969,10 @@ typedef struct Tcl_DString {
 #define TCL_TRACE_WRITES	 0x20
 #define TCL_TRACE_UNSETS	 0x40
 #define TCL_TRACE_DESTROYED	 0x80
-#define TCL_INTERP_DESTROYED	 0x100
+
 #define TCL_LEAVE_ERR_MSG	 0x200
 #define TCL_TRACE_ARRAY		 0x800
-#ifndef TCL_REMOVE_OBSOLETE_TRACES
-/* Required to support old variable/vdelete/vinfo traces */
-#define TCL_TRACE_OLD_STYLE	 0x1000
-#endif
-/* Indicate the semantics of the result of a trace */
+/* Indicate the semantics of the result of a trace. */
 #define TCL_TRACE_RESULT_DYNAMIC 0x8000
 #define TCL_TRACE_RESULT_OBJECT  0x10000
 
@@ -1054,23 +988,12 @@ typedef struct Tcl_DString {
  * Flag values passed to command-related functions.
  */
 
-#define TCL_TRACE_RENAME 0x2000
-#define TCL_TRACE_DELETE 0x4000
+#define TCL_TRACE_RENAME	0x2000
+#define TCL_TRACE_DELETE	0x4000
 
 #define TCL_ALLOW_INLINE_COMPILATION 0x20000
 
 /*
- * The TCL_PARSE_PART1 flag is deprecated and has no effect. The part1 is now
- * always parsed whenever the part2 is NULL. (This is to avoid a common error
- * when converting code to use the new object based APIs and forgetting to
- * give the flag)
- */
-
-#ifndef TCL_NO_DEPRECATED
-#   define TCL_PARSE_PART1	0x400
-#endif
-
-/*
  * Types for linked variables:
  */
 
@@ -1084,39 +1007,32 @@ typedef struct Tcl_DString {
 #define TCL_LINK_SHORT		8
 #define TCL_LINK_USHORT		9
 #define TCL_LINK_UINT		10
-#define TCL_LINK_LONG		11
-#define TCL_LINK_ULONG		12
+#define TCL_LINK_LONG		((sizeof(long) != sizeof(int)) ? TCL_LINK_WIDE_INT : TCL_LINK_INT)
+#define TCL_LINK_ULONG		((sizeof(long) != sizeof(int)) ? TCL_LINK_WIDE_UINT : TCL_LINK_UINT)
 #define TCL_LINK_FLOAT		13
 #define TCL_LINK_WIDE_UINT	14
+#define TCL_LINK_CHARS		15
+#define TCL_LINK_BINARY		16
 #define TCL_LINK_READ_ONLY	0x80
 
 /*
+ *----------------------------------------------------------------------------
  * Forward declarations of Tcl_HashTable and related types.
  */
 
+#ifndef TCL_HASH_TYPE
+#   define TCL_HASH_TYPE size_t
+#endif
+
 typedef struct Tcl_HashKeyType Tcl_HashKeyType;
 typedef struct Tcl_HashTable Tcl_HashTable;
 typedef struct Tcl_HashEntry Tcl_HashEntry;
 
-typedef unsigned int (Tcl_HashKeyProc) _ANSI_ARGS_((Tcl_HashTable *tablePtr,
-	VOID *keyPtr));
-typedef int (Tcl_CompareHashKeysProc) _ANSI_ARGS_((VOID *keyPtr,
-	Tcl_HashEntry *hPtr));
-typedef Tcl_HashEntry *(Tcl_AllocHashEntryProc) _ANSI_ARGS_((
-	Tcl_HashTable *tablePtr, VOID *keyPtr));
-typedef void (Tcl_FreeHashEntryProc) _ANSI_ARGS_((Tcl_HashEntry *hPtr));
-
-/*
- * This flag controls whether the hash table stores the hash of a key, or
- * recalculates it. There should be no reason for turning this flag off as it
- * is completely binary and source compatible unless you directly access the
- * bucketPtr member of the Tcl_HashTableEntry structure. This member has been
- * removed and the space used to store the hash value.
- */
-
-#ifndef TCL_HASH_KEY_STORE_HASH
-#   define TCL_HASH_KEY_STORE_HASH 1
-#endif
+typedef size_t (Tcl_HashKeyProc) (Tcl_HashTable *tablePtr, void *keyPtr);
+typedef int (Tcl_CompareHashKeysProc) (void *keyPtr, Tcl_HashEntry *hPtr);
+typedef Tcl_HashEntry * (Tcl_AllocHashEntryProc) (Tcl_HashTable *tablePtr,
+	void *keyPtr);
+typedef void (Tcl_FreeHashEntryProc) (Tcl_HashEntry *hPtr);
 
 /*
  * Structure definition for an entry in a hash table. No-one outside Tcl
@@ -1127,16 +1043,8 @@ struct Tcl_HashEntry {
     Tcl_HashEntry *nextPtr;	/* Pointer to next entry in this hash bucket,
 				 * or NULL for end of chain. */
     Tcl_HashTable *tablePtr;	/* Pointer to table containing entry. */
-#if TCL_HASH_KEY_STORE_HASH
-    VOID *hash;			/* Hash value, stored as pointer to ensure
-				 * that the offsets of the fields in this
-				 * structure are not changed. */
-#else
-    Tcl_HashEntry **bucketPtr;	/* Pointer to bucket that points to first
-				 * entry in this entry's chain: used for
-				 * deleting the entry. */
-#endif
-    ClientData clientData;	/* Application stores something here with
+    size_t hash;		/* Hash value. */
+    void *clientData;		/* Application stores something here with
 				 * Tcl_SetHashValue. */
     union {			/* Key has one of these forms: */
 	char *oneWordValue;	/* One-word value for key. */
@@ -1144,7 +1052,7 @@ struct Tcl_HashEntry {
 	int words[1];		/* Multiple integer words for key. The actual
 				 * size will be as large as necessary for this
 				 * table's keys. */
-	char string[4];		/* String for key. The actual size will be as
+	char string[1];		/* String for key. The actual size will be as
 				 * large as needed to hold the key. */
     } key;			/* MUST BE LAST FIELD IN RECORD!! */
 };
@@ -1162,10 +1070,18 @@ struct Tcl_HashEntry {
  * TCL_HASH_KEY_SYSTEM_HASH -	If this flag is set then all memory internally
  *                              allocated for the hash table that is not for an
  *                              entry will use the system heap.
+ * TCL_HASH_KEY_DIRECT_COMPARE -
+ *	                        Allows fast comparison for hash keys directly
+ *                              by compare of their key.oneWordValue values,
+ *                              before call of compareKeysProc (much slower
+ *                              than a direct compare, so it is speed-up only
+ *                              flag). Don't use it if keys contain values rather
+ *                              than pointers.
  */
 
 #define TCL_HASH_KEY_RANDOMIZE_HASH 0x1
 #define TCL_HASH_KEY_SYSTEM_HASH    0x2
+#define TCL_HASH_KEY_DIRECT_COMPARE 0x4
 
 /*
  * Structure definition for the methods associated with a hash table key type.
@@ -1224,26 +1140,30 @@ struct Tcl_HashTable {
     Tcl_HashEntry *staticBuckets[TCL_SMALL_HASH_TABLE];
 				/* Bucket array used for small tables (to
 				 * avoid mallocs and frees). */
-    int numBuckets;		/* Total number of buckets allocated at
+    Tcl_Size numBuckets;	/* Total number of buckets allocated at
 				 * **bucketPtr. */
-    int numEntries;		/* Total number of entries present in
+    Tcl_Size numEntries;	/* Total number of entries present in
 				 * table. */
-    int rebuildSize;		/* Enlarge table when numEntries gets to be
+    Tcl_Size rebuildSize;	/* Enlarge table when numEntries gets to be
 				 * this large. */
+    size_t mask;		/* Mask value used in hashing function. */
     int downShift;		/* Shift count used in hashing function.
 				 * Designed to use high-order bits of
 				 * randomized keys. */
-    int mask;			/* Mask value used in hashing function. */
     int keyType;		/* Type of keys used in this table. It's
 				 * either TCL_CUSTOM_KEYS, TCL_STRING_KEYS,
 				 * TCL_ONE_WORD_KEYS, or an integer giving the
 				 * number of ints that is the size of the
 				 * key. */
-    Tcl_HashEntry *(*findProc) _ANSI_ARGS_((Tcl_HashTable *tablePtr,
-	    CONST char *key));
-    Tcl_HashEntry *(*createProc) _ANSI_ARGS_((Tcl_HashTable *tablePtr,
-	    CONST char *key, int *newPtr));
-    Tcl_HashKeyType *typePtr;	/* Type of the keys used in the
+#ifndef TCL_NO_DEPRECATED
+    Tcl_HashEntry *(*findProc) (Tcl_HashTable *tablePtr, const char *key);
+#else
+    void *unUsed;
+#endif
+    Tcl_HashEntry *(*createProc) (Tcl_HashTable *tablePtr, const char *key,
+	    int *newPtr);
+    const Tcl_HashKeyType *typePtr;
+				/* Type of the keys used in the
 				 * Tcl_HashTable. */
 };
 
@@ -1254,7 +1174,7 @@ struct Tcl_HashTable {
 
 typedef struct Tcl_HashSearch {
     Tcl_HashTable *tablePtr;	/* Table being searched. */
-    int nextIndex;		/* Index of next bucket to be enumerated after
+    Tcl_Size nextIndex;		/* Index of next bucket to be enumerated after
 				 * present one. */
     Tcl_HashEntry *nextEntryPtr;/* Next entry to be enumerated in the current
 				 * bucket. */
@@ -1281,10 +1201,10 @@ typedef struct Tcl_HashSearch {
  * accessed from the entry and not the behaviour.
  */
 
-#define TCL_STRING_KEYS		0
-#define TCL_ONE_WORD_KEYS	1
-#define TCL_CUSTOM_TYPE_KEYS	-2
-#define TCL_CUSTOM_PTR_KEYS	-1
+#define TCL_STRING_KEYS		(0)
+#define TCL_ONE_WORD_KEYS	(1)
+#define TCL_CUSTOM_TYPE_KEYS	(-2)
+#define TCL_CUSTOM_PTR_KEYS	(-1)
 
 /*
  * Structure definition for information used to keep track of searches through
@@ -1295,12 +1215,13 @@ typedef struct Tcl_HashSearch {
 typedef struct {
     void *next;			/* Search position for underlying hash
 				 * table. */
-    int epoch;			/* Epoch marker for dictionary being searched,
-				 * or -1 if search has terminated. */
+    size_t epoch;	/* Epoch marker for dictionary being searched,
+				 * or 0 if search has terminated. */
     Tcl_Dict dictionaryPtr;	/* Reference to dictionary being searched. */
 } Tcl_DictSearch;
-
+
 /*
+ *----------------------------------------------------------------------------
  * Flag values to pass to Tcl_DoOneEvent to disable searches for some kinds of
  * events:
  */
@@ -1327,11 +1248,12 @@ struct Tcl_Event {
 };
 
 /*
- * Positions to pass to Tcl_QueueEvent:
+ * Positions to pass to Tcl_QueueEvent/Tcl_ThreadQueueEvent:
  */
 
 typedef enum {
-    TCL_QUEUE_TAIL, TCL_QUEUE_HEAD, TCL_QUEUE_MARK
+    TCL_QUEUE_TAIL, TCL_QUEUE_HEAD, TCL_QUEUE_MARK,
+    TCL_QUEUE_ALERT_IF_EMPTY=4
 } Tcl_QueuePosition;
 
 /*
@@ -1349,23 +1271,26 @@ typedef enum {
  */
 
 typedef struct Tcl_Time {
-    long sec;			/* Seconds. */
+    long long sec;		/* Seconds. */
+#if defined(_CYGWIN_)
+    int usec;			/* Microseconds. */
+#else
     long usec;			/* Microseconds. */
+#endif
 } Tcl_Time;
 
-typedef void (Tcl_SetTimerProc) _ANSI_ARGS_((Tcl_Time *timePtr));
-typedef int (Tcl_WaitForEventProc) _ANSI_ARGS_((Tcl_Time *timePtr));
+typedef void (Tcl_SetTimerProc) (const Tcl_Time *timePtr);
+typedef int (Tcl_WaitForEventProc) (const Tcl_Time *timePtr);
 
 /*
  * TIP #233 (Virtualized Time)
  */
 
-typedef void (Tcl_GetTimeProc)   _ANSI_ARGS_((Tcl_Time *timebuf,
-	ClientData clientData));
-typedef void (Tcl_ScaleTimeProc) _ANSI_ARGS_((Tcl_Time *timebuf,
-	ClientData clientData));
+typedef void (Tcl_GetTimeProc)   (Tcl_Time *timebuf, void *clientData);
+typedef void (Tcl_ScaleTimeProc) (Tcl_Time *timebuf, void *clientData);
 
 /*
+ *----------------------------------------------------------------------------
  * Bits to pass to Tcl_CreateFileHandler and Tcl_CreateChannelHandler to
  * indicate what sorts of events are of interest:
  */
@@ -1398,16 +1323,12 @@ typedef void (Tcl_ScaleTimeProc) _ANSI_ARGS_((Tcl_Time *timebuf,
  * interface.
  */
 
-#define TCL_CLOSE2PROC		((Tcl_DriverCloseProc *) 1)
+#define TCL_CLOSE2PROC		NULL
 
 /*
  * Channel version tag. This was introduced in 8.3.2/8.4.
  */
 
-#define TCL_CHANNEL_VERSION_1	((Tcl_ChannelTypeVersion) 0x1)
-#define TCL_CHANNEL_VERSION_2	((Tcl_ChannelTypeVersion) 0x2)
-#define TCL_CHANNEL_VERSION_3	((Tcl_ChannelTypeVersion) 0x3)
-#define TCL_CHANNEL_VERSION_4	((Tcl_ChannelTypeVersion) 0x4)
 #define TCL_CHANNEL_VERSION_5	((Tcl_ChannelTypeVersion) 0x5)
 
 /*
@@ -1421,45 +1342,39 @@ typedef void (Tcl_ScaleTimeProc) _ANSI_ARGS_((Tcl_Time *timebuf,
  * Typedefs for the various operations in a channel type:
  */
 
-typedef int	(Tcl_DriverBlockModeProc) _ANSI_ARGS_((
-		    ClientData instanceData, int mode));
-typedef int	(Tcl_DriverCloseProc) _ANSI_ARGS_((ClientData instanceData,
-		    Tcl_Interp *interp));
-typedef int	(Tcl_DriverClose2Proc) _ANSI_ARGS_((ClientData instanceData,
-		    Tcl_Interp *interp, int flags));
-typedef int	(Tcl_DriverInputProc) _ANSI_ARGS_((ClientData instanceData,
-		    char *buf, int toRead, int *errorCodePtr));
-typedef int	(Tcl_DriverOutputProc) _ANSI_ARGS_((ClientData instanceData,
-		    CONST84 char *buf, int toWrite, int *errorCodePtr));
-typedef int	(Tcl_DriverSeekProc) _ANSI_ARGS_((ClientData instanceData,
-		    long offset, int mode, int *errorCodePtr));
-typedef int	(Tcl_DriverSetOptionProc) _ANSI_ARGS_((
-		    ClientData instanceData, Tcl_Interp *interp,
-		    CONST char *optionName, CONST char *value));
-typedef int	(Tcl_DriverGetOptionProc) _ANSI_ARGS_((
-		    ClientData instanceData, Tcl_Interp *interp,
-		    CONST84 char *optionName, Tcl_DString *dsPtr));
-typedef void	(Tcl_DriverWatchProc) _ANSI_ARGS_((
-		    ClientData instanceData, int mask));
-typedef int	(Tcl_DriverGetHandleProc) _ANSI_ARGS_((
-		    ClientData instanceData, int direction,
-		    ClientData *handlePtr));
-typedef int	(Tcl_DriverFlushProc) _ANSI_ARGS_((ClientData instanceData));
-typedef int	(Tcl_DriverHandlerProc) _ANSI_ARGS_((
-		    ClientData instanceData, int interestMask));
-typedef Tcl_WideInt (Tcl_DriverWideSeekProc) _ANSI_ARGS_((
-		    ClientData instanceData, Tcl_WideInt offset,
-		    int mode, int *errorCodePtr));
+typedef int	(Tcl_DriverBlockModeProc) (void *instanceData, int mode);
+typedef void Tcl_DriverCloseProc;
+typedef int	(Tcl_DriverClose2Proc) (void *instanceData,
+			Tcl_Interp *interp, int flags);
+typedef int	(Tcl_DriverInputProc) (void *instanceData, char *buf,
+			int toRead, int *errorCodePtr);
+typedef int	(Tcl_DriverOutputProc) (void *instanceData,
+			const char *buf, int toWrite, int *errorCodePtr);
+typedef void Tcl_DriverSeekProc;
+typedef int	(Tcl_DriverSetOptionProc) (void *instanceData,
+			Tcl_Interp *interp, const char *optionName,
+			const char *value);
+typedef int	(Tcl_DriverGetOptionProc) (void *instanceData,
+			Tcl_Interp *interp, const char *optionName,
+			Tcl_DString *dsPtr);
+typedef void	(Tcl_DriverWatchProc) (void *instanceData, int mask);
+typedef int	(Tcl_DriverGetHandleProc) (void *instanceData,
+			int direction, void **handlePtr);
+typedef int	(Tcl_DriverFlushProc) (void *instanceData);
+typedef int	(Tcl_DriverHandlerProc) (void *instanceData,
+			int interestMask);
+typedef long long (Tcl_DriverWideSeekProc) (void *instanceData,
+			long long offset, int mode, int *errorCodePtr);
 /*
  * TIP #218, Channel Thread Actions
  */
-typedef void	(Tcl_DriverThreadActionProc) _ANSI_ARGS_ ((
-		    ClientData instanceData, int action));
+typedef void	(Tcl_DriverThreadActionProc) (void *instanceData,
+			int action);
 /*
  * TIP #208, File Truncation (etc.)
  */
-typedef int	(Tcl_DriverTruncateProc) _ANSI_ARGS_((
-		    ClientData instanceData, Tcl_WideInt length));
+typedef int	(Tcl_DriverTruncateProc) (void *instanceData,
+			long long length);
 
 /*
  * struct Tcl_ChannelType:
@@ -1473,22 +1388,17 @@ typedef int	(Tcl_DriverTruncateProc) _ANSI_ARGS_((
  */
 
 typedef struct Tcl_ChannelType {
-    char *typeName;		/* The name of the channel type in Tcl
+    const char *typeName;	/* The name of the channel type in Tcl
 				 * commands. This storage is owned by channel
 				 * type. */
     Tcl_ChannelTypeVersion version;
 				/* Version of the channel type. */
-    Tcl_DriverCloseProc *closeProc;
-				/* Function to call to close the channel, or
-				 * TCL_CLOSE2PROC if the close2Proc should be
-				 * used instead. */
+    void *closeProc;		/* Not used any more. */
     Tcl_DriverInputProc *inputProc;
 				/* Function to call for input on channel. */
     Tcl_DriverOutputProc *outputProc;
 				/* Function to call for output on channel. */
-    Tcl_DriverSeekProc *seekProc;
-				/* Function to call to seek on the channel.
-				 * May be NULL. */
+    void *seekProc;		/* Not used any more. */
     Tcl_DriverSetOptionProc *setOptionProc;
 				/* Set an option on a channel. */
     Tcl_DriverGetOptionProc *getOptionProc;
@@ -1506,9 +1416,6 @@ typedef struct Tcl_ChannelType {
     Tcl_DriverBlockModeProc *blockModeProc;
 				/* Set blocking mode for the raw channel. May
 				 * be NULL. */
-    /*
-     * Only valid in TCL_CHANNEL_VERSION_2 channels or later.
-     */
     Tcl_DriverFlushProc *flushProc;
 				/* Function to call to flush a channel. May be
 				 * NULL. */
@@ -1516,27 +1423,15 @@ typedef struct Tcl_ChannelType {
 				/* Function to call to handle a channel event.
 				 * This will be passed up the stacked channel
 				 * chain. */
-    /*
-     * Only valid in TCL_CHANNEL_VERSION_3 channels or later.
-     */
     Tcl_DriverWideSeekProc *wideSeekProc;
 				/* Function to call to seek on the channel
 				 * which can handle 64-bit offsets. May be
 				 * NULL, and must be NULL if seekProc is
 				 * NULL. */
-    /*
-     * Only valid in TCL_CHANNEL_VERSION_4 channels or later.
-     * TIP #218, Channel Thread Actions.
-     */
     Tcl_DriverThreadActionProc *threadActionProc;
 				/* Function to call to notify the driver of
 				 * thread specific activity for a channel. May
 				 * be NULL. */
-
-    /*
-     * Only valid in TCL_CHANNEL_VERSION_5 channels or later.
-     * TIP #208, File Truncation.
-     */
     Tcl_DriverTruncateProc *truncateProc;
 				/* Function to call to truncate the underlying
 				 * file to a particular length. May be NULL if
@@ -1554,6 +1449,7 @@ typedef struct Tcl_ChannelType {
 					 * mode. */
 
 /*
+ *----------------------------------------------------------------------------
  * Enum for different types of file paths.
  */
 
@@ -1605,78 +1501,67 @@ typedef struct Tcl_GlobTypeData {
  * Typedefs for the various filesystem operations:
  */
 
-typedef int (Tcl_FSStatProc) _ANSI_ARGS_((Tcl_Obj *pathPtr, Tcl_StatBuf *buf));
-typedef int (Tcl_FSAccessProc) _ANSI_ARGS_((Tcl_Obj *pathPtr, int mode));
-typedef Tcl_Channel (Tcl_FSOpenFileChannelProc) _ANSI_ARGS_((
-	Tcl_Interp *interp, Tcl_Obj *pathPtr, int mode, int permissions));
-typedef int (Tcl_FSMatchInDirectoryProc) _ANSI_ARGS_((Tcl_Interp *interp,
-	Tcl_Obj *result, Tcl_Obj *pathPtr, CONST char *pattern,
-	Tcl_GlobTypeData * types));
-typedef Tcl_Obj * (Tcl_FSGetCwdProc) _ANSI_ARGS_((Tcl_Interp *interp));
-typedef int (Tcl_FSChdirProc) _ANSI_ARGS_((Tcl_Obj *pathPtr));
-typedef int (Tcl_FSLstatProc) _ANSI_ARGS_((Tcl_Obj *pathPtr,
-	Tcl_StatBuf *buf));
-typedef int (Tcl_FSCreateDirectoryProc) _ANSI_ARGS_((Tcl_Obj *pathPtr));
-typedef int (Tcl_FSDeleteFileProc) _ANSI_ARGS_((Tcl_Obj *pathPtr));
-typedef int (Tcl_FSCopyDirectoryProc) _ANSI_ARGS_((Tcl_Obj *srcPathPtr,
-	Tcl_Obj *destPathPtr, Tcl_Obj **errorPtr));
-typedef int (Tcl_FSCopyFileProc) _ANSI_ARGS_((Tcl_Obj *srcPathPtr,
-	Tcl_Obj *destPathPtr));
-typedef int (Tcl_FSRemoveDirectoryProc) _ANSI_ARGS_((Tcl_Obj *pathPtr,
-	int recursive, Tcl_Obj **errorPtr));
-typedef int (Tcl_FSRenameFileProc) _ANSI_ARGS_((Tcl_Obj *srcPathPtr,
-	Tcl_Obj *destPathPtr));
-typedef void (Tcl_FSUnloadFileProc) _ANSI_ARGS_((Tcl_LoadHandle loadHandle));
-typedef Tcl_Obj * (Tcl_FSListVolumesProc) _ANSI_ARGS_((void));
+typedef int (Tcl_FSStatProc) (Tcl_Obj *pathPtr, Tcl_StatBuf *buf);
+typedef int (Tcl_FSAccessProc) (Tcl_Obj *pathPtr, int mode);
+typedef Tcl_Channel (Tcl_FSOpenFileChannelProc) (Tcl_Interp *interp,
+	Tcl_Obj *pathPtr, int mode, int permissions);
+typedef int (Tcl_FSMatchInDirectoryProc) (Tcl_Interp *interp, Tcl_Obj *result,
+	Tcl_Obj *pathPtr, const char *pattern, Tcl_GlobTypeData *types);
+typedef Tcl_Obj * (Tcl_FSGetCwdProc) (Tcl_Interp *interp);
+typedef int (Tcl_FSChdirProc) (Tcl_Obj *pathPtr);
+typedef int (Tcl_FSLstatProc) (Tcl_Obj *pathPtr, Tcl_StatBuf *buf);
+typedef int (Tcl_FSCreateDirectoryProc) (Tcl_Obj *pathPtr);
+typedef int (Tcl_FSDeleteFileProc) (Tcl_Obj *pathPtr);
+typedef int (Tcl_FSCopyDirectoryProc) (Tcl_Obj *srcPathPtr,
+	Tcl_Obj *destPathPtr, Tcl_Obj **errorPtr);
+typedef int (Tcl_FSCopyFileProc) (Tcl_Obj *srcPathPtr, Tcl_Obj *destPathPtr);
+typedef int (Tcl_FSRemoveDirectoryProc) (Tcl_Obj *pathPtr, int recursive,
+	Tcl_Obj **errorPtr);
+typedef int (Tcl_FSRenameFileProc) (Tcl_Obj *srcPathPtr, Tcl_Obj *destPathPtr);
+typedef void (Tcl_FSUnloadFileProc) (Tcl_LoadHandle loadHandle);
+typedef Tcl_Obj * (Tcl_FSListVolumesProc) (void);
 /* We have to declare the utime structure here. */
 struct utimbuf;
-typedef int (Tcl_FSUtimeProc) _ANSI_ARGS_((Tcl_Obj *pathPtr,
-	struct utimbuf *tval));
-typedef int (Tcl_FSNormalizePathProc) _ANSI_ARGS_((Tcl_Interp *interp,
-	Tcl_Obj *pathPtr, int nextCheckpoint));
-typedef int (Tcl_FSFileAttrsGetProc) _ANSI_ARGS_((Tcl_Interp *interp,
-	int index, Tcl_Obj *pathPtr, Tcl_Obj **objPtrRef));
-typedef CONST char ** (Tcl_FSFileAttrStringsProc) _ANSI_ARGS_((
-	Tcl_Obj *pathPtr, Tcl_Obj **objPtrRef));
-typedef int (Tcl_FSFileAttrsSetProc) _ANSI_ARGS_((Tcl_Interp *interp,
-	int index, Tcl_Obj *pathPtr, Tcl_Obj *objPtr));
-typedef Tcl_Obj * (Tcl_FSLinkProc) _ANSI_ARGS_((Tcl_Obj *pathPtr,
-	Tcl_Obj *toPtr, int linkType));
-typedef int (Tcl_FSLoadFileProc) _ANSI_ARGS_((Tcl_Interp * interp,
-	Tcl_Obj *pathPtr, Tcl_LoadHandle *handlePtr,
-	Tcl_FSUnloadFileProc **unloadProcPtr));
-typedef int (Tcl_FSPathInFilesystemProc) _ANSI_ARGS_((Tcl_Obj *pathPtr,
-	ClientData *clientDataPtr));
-typedef Tcl_Obj * (Tcl_FSFilesystemPathTypeProc) _ANSI_ARGS_((
-	Tcl_Obj *pathPtr));
-typedef Tcl_Obj * (Tcl_FSFilesystemSeparatorProc) _ANSI_ARGS_((
-	Tcl_Obj *pathPtr));
-typedef void (Tcl_FSFreeInternalRepProc) _ANSI_ARGS_((ClientData clientData));
-typedef ClientData (Tcl_FSDupInternalRepProc) _ANSI_ARGS_((
-	ClientData clientData));
-typedef Tcl_Obj * (Tcl_FSInternalToNormalizedProc) _ANSI_ARGS_((
-	ClientData clientData));
-typedef ClientData (Tcl_FSCreateInternalRepProc) _ANSI_ARGS_((
-	Tcl_Obj *pathPtr));
+typedef int (Tcl_FSUtimeProc) (Tcl_Obj *pathPtr, struct utimbuf *tval);
+typedef int (Tcl_FSNormalizePathProc) (Tcl_Interp *interp, Tcl_Obj *pathPtr,
+	int nextCheckpoint);
+typedef int (Tcl_FSFileAttrsGetProc) (Tcl_Interp *interp, int index,
+	Tcl_Obj *pathPtr, Tcl_Obj **objPtrRef);
+typedef const char *const * (Tcl_FSFileAttrStringsProc) (Tcl_Obj *pathPtr,
+	Tcl_Obj **objPtrRef);
+typedef int (Tcl_FSFileAttrsSetProc) (Tcl_Interp *interp, int index,
+	Tcl_Obj *pathPtr, Tcl_Obj *objPtr);
+typedef Tcl_Obj * (Tcl_FSLinkProc) (Tcl_Obj *pathPtr, Tcl_Obj *toPtr,
+	int linkType);
+typedef int (Tcl_FSLoadFileProc) (Tcl_Interp *interp, Tcl_Obj *pathPtr,
+	Tcl_LoadHandle *handlePtr, Tcl_FSUnloadFileProc **unloadProcPtr);
+typedef int (Tcl_FSPathInFilesystemProc) (Tcl_Obj *pathPtr,
+	void **clientDataPtr);
+typedef Tcl_Obj * (Tcl_FSFilesystemPathTypeProc) (Tcl_Obj *pathPtr);
+typedef Tcl_Obj * (Tcl_FSFilesystemSeparatorProc) (Tcl_Obj *pathPtr);
+#define Tcl_FSFreeInternalRepProc Tcl_FreeProc
+typedef void *(Tcl_FSDupInternalRepProc) (void *clientData);
+typedef Tcl_Obj * (Tcl_FSInternalToNormalizedProc) (void *clientData);
+typedef void *(Tcl_FSCreateInternalRepProc) (Tcl_Obj *pathPtr);
 
 typedef struct Tcl_FSVersion_ *Tcl_FSVersion;
 
 /*
- *----------------------------------------------------------------
+ *----------------------------------------------------------------------------
  * Data structures related to hooking into the filesystem
- *----------------------------------------------------------------
  */
 
 /*
  * Filesystem version tag.  This was introduced in 8.4.
  */
+
 #define TCL_FILESYSTEM_VERSION_1	((Tcl_FSVersion) 0x1)
 
 /*
  * struct Tcl_Filesystem:
  *
  * One such structure exists for each type (kind) of filesystem. It collects
- * together in one place all the functions that are part of the specific
+ * together the functions that form the interface for a particulr the
  * filesystem. Tcl always accesses the filesystem through one of these
  * structures.
  *
@@ -1686,152 +1571,124 @@ typedef struct Tcl_FSVersion_ *Tcl_FSVersion;
  */
 
 typedef struct Tcl_Filesystem {
-    CONST char *typeName;	/* The name of the filesystem. */
-    int structureLength;	/* Length of this structure, so future binary
+    const char *typeName;	/* The name of the filesystem. */
+    Tcl_Size structureLength;	/* Length of this structure, so future binary
 				 * compatibility can be assured. */
     Tcl_FSVersion version;	/* Version of the filesystem type. */
     Tcl_FSPathInFilesystemProc *pathInFilesystemProc;
-				/* Function to check whether a path is in this
+				/* Determines whether the pathname is in this
 				 * filesystem. This is the most important
 				 * filesystem function. */
     Tcl_FSDupInternalRepProc *dupInternalRepProc;
-				/* Function to duplicate internal fs rep. May
-				 * be NULL (but then fs is less efficient). */
+				/* Duplicates the internal handle of the node.
+				 * If it is NULL, the filesystem is less
+				 * performant. */
     Tcl_FSFreeInternalRepProc *freeInternalRepProc;
-				/* Function to free internal fs rep. Must be
-				 * implemented if internal representations
-				 * need freeing, otherwise it can be NULL. */
+				/* Frees the internal handle of the node.  NULL
+				 * only if there is no need to free resources
+				 * used for the internal handle. */
     Tcl_FSInternalToNormalizedProc *internalToNormalizedProc;
-				/* Function to convert internal representation
-				 * to a normalized path. Only required if the
-				 * fs creates pure path objects with no
-				 * string/path representation. */
+				/* Converts the internal handle to a normalized
+				 * path.  NULL if the filesystem creates nodes
+				 * having no pathname. */
     Tcl_FSCreateInternalRepProc *createInternalRepProc;
-				/* Function to create a filesystem-specific
-				 * internal representation. May be NULL if
-				 * paths have no internal representation, or
-				 * if the Tcl_FSPathInFilesystemProc for this
-				 * filesystem always immediately creates an
-				 * internal representation for paths it
-				 * accepts. */
+				/* Creates an internal handle for a pathname.
+				 * May be NULL if pathnames have no internal
+				 * handle or if pathInFilesystemProc always
+				 * immediately creates an internal
+				 * representation for pathnames in the
+				 * filesystem. */
     Tcl_FSNormalizePathProc *normalizePathProc;
-				/* Function to normalize a path.  Should be
-				 * implemented for all filesystems which can
-				 * have multiple string representations for
-				 * the same path object. */
+				/* Normalizes a path.  Should be implemented if
+				 * the filesystems supports multiple paths to
+				 * the same node. */
     Tcl_FSFilesystemPathTypeProc *filesystemPathTypeProc;
-				/* Function to determine the type of a path in
-				 * this filesystem. May be NULL. */
+				/* Determines the type of a path in this
+				 * filesystem. May be NULL. */
     Tcl_FSFilesystemSeparatorProc *filesystemSeparatorProc;
-				/* Function to return the separator
-				 * character(s) for this filesystem. Must be
-				 * implemented. */
-    Tcl_FSStatProc *statProc;	/* Function to process a 'Tcl_FSStat()' call.
-				 * Must be implemented for any reasonable
-				 * filesystem. */
-    Tcl_FSAccessProc *accessProc;
-				/* Function to process a 'Tcl_FSAccess()'
-				 * call. Must be implemented for any
+				/* Produces the separator character(s) for this
+				 * filesystem. Must not be NULL. */
+    Tcl_FSStatProc *statProc;	/* Called by 'Tcl_FSStat()'.  Provided by any
 				 * reasonable filesystem. */
+    Tcl_FSAccessProc *accessProc;
+				/* Called by 'Tcl_FSAccess()'.  Implemented by
+				 * any reasonable filesystem. */
     Tcl_FSOpenFileChannelProc *openFileChannelProc;
-				/* Function to process a
-				 * 'Tcl_FSOpenFileChannel()' call. Must be
-				 * implemented for any reasonable
-				 * filesystem. */
+				/* Called by 'Tcl_FSOpenFileChannel()'.
+				 * Provided by any reasonable filesystem. */
     Tcl_FSMatchInDirectoryProc *matchInDirectoryProc;
-				/* Function to process a
-				 * 'Tcl_FSMatchInDirectory()'.  If not
-				 * implemented, then glob and recursive copy
-				 * functionality will be lacking in the
-				 * filesystem. */
-    Tcl_FSUtimeProc *utimeProc;	/* Function to process a 'Tcl_FSUtime()' call.
-				 * Required to allow setting (not reading) of
-				 * times with 'file mtime', 'file atime' and
-				 * the open-r/open-w/fcopy implementation of
-				 * 'file copy'. */
-    Tcl_FSLinkProc *linkProc;	/* Function to process a 'Tcl_FSLink()' call.
-				 * Should be implemented only if the
-				 * filesystem supports links (reading or
-				 * creating). */
+				/* Called by 'Tcl_FSMatchInDirectory()'.  NULL
+				 * if the filesystem does not support glob or
+				 * recursive copy. */
+    Tcl_FSUtimeProc *utimeProc;	/* Called by 'Tcl_FSUtime()', by 'file
+				 *  mtime' to set (not read) times, 'file
+				 *  atime', and the open-r/open-w/fcopy variant
+				 *  of 'file copy'. */
+    Tcl_FSLinkProc *linkProc;	/* Called by 'Tcl_FSLink()'. NULL if reading or
+				 *  creating links is not supported. */
     Tcl_FSListVolumesProc *listVolumesProc;
-				/* Function to list any filesystem volumes
-				 * added by this filesystem. Should be
-				 * implemented only if the filesystem adds
-				 * volumes at the head of the filesystem. */
+				/* Lists filesystem volumes added by this
+				 * filesystem. NULL if the filesystem does not
+				 * use volumes. */
     Tcl_FSFileAttrStringsProc *fileAttrStringsProc;
-				/* Function to list all attributes strings
-				 * which are valid for this filesystem. If not
-				 * implemented the filesystem will not support
-				 * the 'file attributes' command. This allows
-				 * arbitrary additional information to be
-				 * attached to files in the filesystem. */
+				/* List all valid attributes strings.  NULL if
+				 * the filesystem does not support the 'file
+				 * attributes' command.  Can be used to attach
+				 * arbitrary additional data to files in a
+				 * filesystem. */
     Tcl_FSFileAttrsGetProc *fileAttrsGetProc;
-				/* Function to process a
-				 * 'Tcl_FSFileAttrsGet()' call, used by 'file
-				 * attributes'. */
+				/* Called by 'Tcl_FSFileAttrsGet()' and by
+				 * 'file attributes'. */
     Tcl_FSFileAttrsSetProc *fileAttrsSetProc;
-				/* Function to process a
-				 * 'Tcl_FSFileAttrsSet()' call, used by 'file
-				 * attributes'.  */
+				/* Called by 'Tcl_FSFileAttrsSet()' and by
+				 * 'file attributes'. */
     Tcl_FSCreateDirectoryProc *createDirectoryProc;
-				/* Function to process a
-				 * 'Tcl_FSCreateDirectory()' call. Should be
-				 * implemented unless the FS is read-only. */
+				/* Called by 'Tcl_FSCreateDirectory()'.  May be
+				 * NULL if the filesystem is read-only. */
     Tcl_FSRemoveDirectoryProc *removeDirectoryProc;
-				/* Function to process a
-				 * 'Tcl_FSRemoveDirectory()' call. Should be
-				 * implemented unless the FS is read-only. */
+				/* Called by 'Tcl_FSRemoveDirectory()'.  May be
+				 * NULL if the filesystem is read-only. */
     Tcl_FSDeleteFileProc *deleteFileProc;
-				/* Function to process a 'Tcl_FSDeleteFile()'
-				 * call. Should be implemented unless the FS
-				 * is read-only. */
+				/* Called by 'Tcl_FSDeleteFile()' May be NULL
+				 * if the filesystem is is read-only. */
     Tcl_FSCopyFileProc *copyFileProc;
-				/* Function to process a 'Tcl_FSCopyFile()'
-				 * call. If not implemented Tcl will fall back
-				 * on open-r, open-w and fcopy as a copying
-				 * mechanism, for copying actions initiated in
-				 * Tcl (not C). */
+				/* Called by 'Tcl_FSCopyFile()'.  If NULL, for
+				 * a copy operation at the script level (not
+				 * C) Tcl uses open-r, open-w and fcopy. */
     Tcl_FSRenameFileProc *renameFileProc;
-				/* Function to process a 'Tcl_FSRenameFile()'
-				 * call. If not implemented, Tcl will fall
-				 * back on a copy and delete mechanism, for
-				 * rename actions initiated in Tcl (not C). */
+				/* Called by 'Tcl_FSRenameFile()'. If NULL, for
+				 * a rename operation at the script level (not
+				 * C) Tcl performs a copy operation followed
+				 * by a delete operation. */
     Tcl_FSCopyDirectoryProc *copyDirectoryProc;
-				/* Function to process a
-				 * 'Tcl_FSCopyDirectory()' call. If not
-				 * implemented, Tcl will fall back on a
-				 * recursive create-dir, file copy mechanism,
-				 * for copying actions initiated in Tcl (not
-				 * C). */
-    Tcl_FSLstatProc *lstatProc;	/* Function to process a 'Tcl_FSLstat()' call.
-				 * If not implemented, Tcl will attempt to use
-				 * the 'statProc' defined above instead. */
+				/* Called by 'Tcl_FSCopyDirectory()'. If NULL,
+				 * for a copy operation at the script level
+				 * (not C) Tcl recursively creates directories
+				 * and copies files. */
+    Tcl_FSLstatProc *lstatProc;	/* Called by 'Tcl_FSLstat()'. If NULL, Tcl
+				 * attempts to use 'statProc' instead. */
     Tcl_FSLoadFileProc *loadFileProc;
-				/* Function to process a 'Tcl_FSLoadFile()'
-				 * call. If not implemented, Tcl will fall
-				 * back on a copy to native-temp followed by a
-				 * Tcl_FSLoadFile on that temporary copy. */
+				/* Called by 'Tcl_FSLoadFile()'. If NULL, Tcl
+				 * performs a copy to a temporary file in the
+				 * native filesystem and then calls
+				 * Tcl_FSLoadFile() on that temporary copy. */
     Tcl_FSGetCwdProc *getCwdProc;
-				/* Function to process a 'Tcl_FSGetCwd()'
-				 * call. Most filesystems need not implement
-				 * this. It will usually only be called once,
-				 * if 'getcwd' is called before 'chdir'. May
-				 * be NULL. */
-    Tcl_FSChdirProc *chdirProc;	/* Function to process a 'Tcl_FSChdir()' call.
-				 * If filesystems do not implement this, it
-				 * will be emulated by a series of directory
-				 * access checks. Otherwise, virtual
-				 * filesystems which do implement it need only
-				 * respond with a positive return result if
-				 * the dirName is a valid directory in their
-				 * filesystem. They need not remember the
-				 * result, since that will be automatically
-				 * remembered for use by GetCwd. Real
-				 * filesystems should carry out the correct
-				 * action (i.e. call the correct system
-				 * 'chdir' api). If not implemented, then 'cd'
-				 * and 'pwd' will fail inside the
-				 * filesystem. */
+				/* Called by 'Tcl_FSGetCwd()'.  Normally NULL.
+				 * Usually only called once:  If 'getcwd' is
+				 * called before 'chdir' is ever called. */
+    Tcl_FSChdirProc *chdirProc;	/* Called by 'Tcl_FSChdir()'.  For a virtual
+				 * filesystem, chdirProc just returns zero
+				 * (success) if the pathname is a valid
+				 * directory, and some other value otherwise.
+				 * For A real filesystem, chdirProc performs
+				 * the correct action, e.g.  calls the system
+				 * 'chdir' function. If not implemented, then
+				 * 'cd' and 'pwd' fail for a pathname in this
+				 * filesystem. On success Tcl stores the
+				 * pathname for use by GetCwd.  If NULL, Tcl
+				 * performs records the pathname as the new
+				 * current directory if it passes a series of
+				 * directory access checks. */
 } Tcl_Filesystem;
 
 /*
@@ -1848,6 +1705,7 @@ typedef struct Tcl_Filesystem {
 #define TCL_CREATE_HARD_LINK		0x02
 
 /*
+ *----------------------------------------------------------------------------
  * The following structure represents the Notifier functions that you can
  * override with the Tcl_SetNotifier call.
  */
@@ -1862,73 +1720,11 @@ typedef struct Tcl_NotifierProcs {
     Tcl_AlertNotifierProc *alertNotifierProc;
     Tcl_ServiceModeHookProc *serviceModeHookProc;
 } Tcl_NotifierProcs;
-
-/*
- * The following structure represents a user-defined encoding. It collects
- * together all the functions that are used by the specific encoding.
- */
-
-typedef struct Tcl_EncodingType {
-    CONST char *encodingName;	/* The name of the encoding, e.g. "euc-jp".
-				 * This name is the unique key for this
-				 * encoding type. */
-    Tcl_EncodingConvertProc *toUtfProc;
-				/* Function to convert from external encoding
-				 * into UTF-8. */
-    Tcl_EncodingConvertProc *fromUtfProc;
-				/* Function to convert from UTF-8 into
-				 * external encoding. */
-    Tcl_EncodingFreeProc *freeProc;
-				/* If non-NULL, function to call when this
-				 * encoding is deleted. */
-    ClientData clientData;	/* Arbitrary value associated with encoding
-				 * type. Passed to conversion functions. */
-    int nullSize;		/* Number of zero bytes that signify
-				 * end-of-string in this encoding. This number
-				 * is used to determine the source string
-				 * length when the srcLen argument is
-				 * negative. Must be 1 or 2. */
-} Tcl_EncodingType;
-
-/*
- * The following definitions are used as values for the conversion control
- * flags argument when converting text from one character set to another:
- *
- * TCL_ENCODING_START -		Signifies that the source buffer is the first
- *				block in a (potentially multi-block) input
- *				stream. Tells the conversion function to reset
- *				to an initial state and perform any
- *				initialization that needs to occur before the
- *				first byte is converted. If the source buffer
- *				contains the entire input stream to be
- *				converted, this flag should be set.
- * TCL_ENCODING_END -		Signifies that the source buffer is the last
- *				block in a (potentially multi-block) input
- *				stream. Tells the conversion routine to
- *				perform any finalization that needs to occur
- *				after the last byte is converted and then to
- *				reset to an initial state. If the source
- *				buffer contains the entire input stream to be
- *				converted, this flag should be set.
- * TCL_ENCODING_STOPONERROR -	If set, then the converter will return
- *				immediately upon encountering an invalid byte
- *				sequence or a source character that has no
- *				mapping in the target encoding. If clear, then
- *				the converter will skip the problem,
- *				substituting one or more "close" characters in
- *				the destination buffer and then continue to
- *				convert the source.
- */
-
-#define TCL_ENCODING_START		0x01
-#define TCL_ENCODING_END		0x02
-#define TCL_ENCODING_STOPONERROR	0x04
-
+
 /*
+ *----------------------------------------------------------------------------
  * The following data structures and declarations are for the new Tcl parser.
- */
-
-/*
+ *
  * For each word of a command, and for each piece of a word such as a variable
  * reference, one of the following structures is created to describe the
  * token.
@@ -1937,9 +1733,9 @@ typedef struct Tcl_EncodingType {
 typedef struct Tcl_Token {
     int type;			/* Type of token, such as TCL_TOKEN_WORD; see
 				 * below for valid types. */
-    CONST char *start;		/* First character in token. */
-    int size;			/* Number of bytes in token. */
-    int numComponents;		/* If this token is composed of other tokens,
+    const char *start;		/* First character in token. */
+    Tcl_Size size;		/* Number of bytes in token. */
+    Tcl_Size numComponents;	/* If this token is composed of other tokens,
 				 * this field tells how many of them there are
 				 * (including components of components, etc.).
 				 * The component tokens immediately follow
@@ -2005,7 +1801,7 @@ typedef struct Tcl_Token {
  * TCL_TOKEN_OPERATOR -		The token describes one expression operator.
  *				An operator might be the name of a math
  *				function such as "abs". A TCL_TOKEN_OPERATOR
- *				token is always preceeded by one
+ *				token is always preceded by one
  *				TCL_TOKEN_SUB_EXPR token for the operator's
  *				subexpression, and is followed by zero or more
  *				TCL_TOKEN_SUB_EXPR tokens for the operator's
@@ -2051,52 +1847,52 @@ typedef struct Tcl_Token {
 #define NUM_STATIC_TOKENS 20
 
 typedef struct Tcl_Parse {
-    CONST char *commentStart;	/* Pointer to # that begins the first of one
+    const char *commentStart;	/* Pointer to # that begins the first of one
 				 * or more comments preceding the command. */
-    int commentSize;		/* Number of bytes in comments (up through
+    Tcl_Size commentSize;	/* Number of bytes in comments (up through
 				 * newline character that terminates the last
 				 * comment). If there were no comments, this
 				 * field is 0. */
-    CONST char *commandStart;	/* First character in first word of
+    const char *commandStart;	/* First character in first word of
 				 * command. */
-    int commandSize;		/* Number of bytes in command, including first
+    Tcl_Size commandSize;	/* Number of bytes in command, including first
 				 * character of first word, up through the
 				 * terminating newline, close bracket, or
 				 * semicolon. */
-    int numWords;		/* Total number of words in command. May be
+    Tcl_Size numWords;		/* Total number of words in command. May be
 				 * 0. */
     Tcl_Token *tokenPtr;	/* Pointer to first token representing the
 				 * words of the command. Initially points to
 				 * staticTokens, but may change to point to
 				 * malloc-ed space if command exceeds space in
 				 * staticTokens. */
-    int numTokens;		/* Total number of tokens in command. */
-    int tokensAvailable;	/* Total number of tokens available at
+    Tcl_Size numTokens;		/* Total number of tokens in command. */
+    Tcl_Size tokensAvailable;	/* Total number of tokens available at
 				 * *tokenPtr. */
     int errorType;		/* One of the parsing error types defined
 				 * above. */
+    int incomplete;		/* This field is set to 1 by Tcl_ParseCommand
+				 * if the command appears to be incomplete.
+				 * This information is used by
+				 * Tcl_CommandComplete. */
 
     /*
      * The fields below are intended only for the private use of the parser.
      * They should not be used by functions that invoke Tcl_ParseCommand.
      */
 
-    CONST char *string;		/* The original command string passed to
+    const char *string;		/* The original command string passed to
 				 * Tcl_ParseCommand. */
-    CONST char *end;		/* Points to the character just after the last
+    const char *end;		/* Points to the character just after the last
 				 * one in the command string. */
     Tcl_Interp *interp;		/* Interpreter to use for error reporting, or
 				 * NULL. */
-    CONST char *term;		/* Points to character in string that
+    const char *term;		/* Points to character in string that
 				 * terminated most recent token. Filled in by
 				 * ParseTokens. If an error occurs, points to
 				 * beginning of region where the error
 				 * occurred (e.g. the open brace if the close
 				 * brace is missing). */
-    int incomplete;		/* This field is set to 1 by Tcl_ParseCommand
-				 * if the command appears to be incomplete.
-				 * This information is used by
-				 * Tcl_CommandComplete. */
     Tcl_Token staticTokens[NUM_STATIC_TOKENS];
 				/* Initial space for tokens for command. This
 				 * space should be large enough to accommodate
@@ -2104,6 +1900,92 @@ typedef struct Tcl_Parse {
 				 * for very large commands that don't fit
 				 * here. */
 } Tcl_Parse;
+
+/*
+ *----------------------------------------------------------------------------
+ * The following structure represents a user-defined encoding. It collects
+ * together all the functions that are used by the specific encoding.
+ */
+
+typedef struct Tcl_EncodingType {
+    const char *encodingName;	/* The name of the encoding, e.g. "euc-jp".
+				 * This name is the unique key for this
+				 * encoding type. */
+    Tcl_EncodingConvertProc *toUtfProc;
+				/* Function to convert from external encoding
+				 * into UTF-8. */
+    Tcl_EncodingConvertProc *fromUtfProc;
+				/* Function to convert from UTF-8 into
+				 * external encoding. */
+    Tcl_FreeProc *freeProc;	/* If non-NULL, function to call when this
+				 * encoding is deleted. */
+    void *clientData;		/* Arbitrary value associated with encoding
+				 * type. Passed to conversion functions. */
+    Tcl_Size nullSize;		/* Number of zero bytes that signify
+				 * end-of-string in this encoding. This number
+				 * is used to determine the source string
+				 * length when the srcLen argument is
+				 * negative. Must be 1, 2, or 4. */
+} Tcl_EncodingType;
+
+/*
+ * The following definitions are used as values for the conversion control
+ * flags argument when converting text from one character set to another:
+ *
+ * TCL_ENCODING_START -		Signifies that the source buffer is the first
+ *				block in a (potentially multi-block) input
+ *				stream. Tells the conversion function to reset
+ *				to an initial state and perform any
+ *				initialization that needs to occur before the
+ *				first byte is converted. If the source buffer
+ *				contains the entire input stream to be
+ *				converted, this flag should be set.
+ * TCL_ENCODING_END -		Signifies that the source buffer is the last
+ *				block in a (potentially multi-block) input
+ *				stream. Tells the conversion routine to
+ *				perform any finalization that needs to occur
+ *				after the last byte is converted and then to
+ *				reset to an initial state. If the source
+ *				buffer contains the entire input stream to be
+ *				converted, this flag should be set.
+ * TCL_ENCODING_STOPONERROR -	Not used any more.
+ * TCL_ENCODING_NO_TERMINATE -	If set, Tcl_ExternalToUtf does not append a
+ *				terminating NUL byte.  Since it does not need
+ *				an extra byte for a terminating NUL, it fills
+ *				all dstLen bytes with encoded UTF-8 content if
+ *				needed.  If clear, a byte is reserved in the
+ *				dst space for NUL termination, and a
+ *				terminating NUL is appended.
+ * TCL_ENCODING_CHAR_LIMIT -	If set and dstCharsPtr is not NULL, then
+ *				Tcl_ExternalToUtf takes the initial value of
+ *				*dstCharsPtr as a limit of the maximum number
+ *				of chars to produce in the encoded UTF-8
+ *				content.  Otherwise, the number of chars
+ *				produced is controlled only by other limiting
+ *				factors.
+ * TCL_ENCODING_PROFILE_* -	Mutually exclusive encoding profile ids. Note
+ *				these are bit masks.
+ *
+ * NOTE: THESE BIT DEFINITIONS SHOULD NOT OVERLAP WITH INTERNAL USE BITS
+ * DEFINED IN tclEncoding.c (ENCODING_INPUT et al). Be cognizant of this
+ * when adding bits.
+ */
+
+#define TCL_ENCODING_START		0x01
+#define TCL_ENCODING_END		0x02
+#define TCL_ENCODING_STOPONERROR	0x0 /* Not used any more */
+#define TCL_ENCODING_NO_TERMINATE	0x08
+#define TCL_ENCODING_CHAR_LIMIT		0x10
+/* Internal use bits, do not define bits in this space. See above comment */
+#define TCL_ENCODING_INTERNAL_USE_MASK  0xFF00
+/*
+ * Reserve top byte for profile values (disjoint, not a mask). In case of
+ * changes, ensure ENCODING_PROFILE_* macros in tclInt.h are modified if
+ * necessary.
+ */
+#define TCL_ENCODING_PROFILE_STRICT   0x00000000
+#define TCL_ENCODING_PROFILE_TCL8     0x01000000
+#define TCL_ENCODING_PROFILE_REPLACE  0x02000000
 
 /*
  * The following definitions are the error codes returned by the conversion
@@ -2124,32 +2006,27 @@ typedef struct Tcl_Parse {
  * TCL_CONVERT_SYNTAX -		The source stream contained an invalid
  *				character sequence. This may occur if the
  *				input stream has been damaged or if the input
- *				encoding method was misidentified. This error
- *				is reported only if TCL_ENCODING_STOPONERROR
- *				was specified.
+ *				encoding method was misidentified.
  * TCL_CONVERT_UNKNOWN -	The source string contained a character that
  *				could not be represented in the target
- *				encoding. This error is reported only if
- *				TCL_ENCODING_STOPONERROR was specified.
+ *				encoding.
  */
 
-#define TCL_CONVERT_MULTIBYTE	-1
-#define TCL_CONVERT_SYNTAX	-2
-#define TCL_CONVERT_UNKNOWN	-3
-#define TCL_CONVERT_NOSPACE	-4
+#define TCL_CONVERT_MULTIBYTE	(-1)
+#define TCL_CONVERT_SYNTAX	(-2)
+#define TCL_CONVERT_UNKNOWN	(-3)
+#define TCL_CONVERT_NOSPACE	(-4)
 
 /*
  * The maximum number of bytes that are necessary to represent a single
- * Unicode character in UTF-8. The valid values should be 3 or 6 (or perhaps 1
- * if we want to support a non-unicode enabled core). If 3, then Tcl_UniChar
- * must be 2-bytes in size (UCS-2) (the default). If 6, then Tcl_UniChar must
- * be 4-bytes in size (UCS-4). At this time UCS-2 mode is the default and
- * recommended mode. UCS-4 is experimental and not recommended. It works for
- * the core, but most extensions expect UCS-2.
+ * Unicode character in UTF-8. The valid values are 3 and 4. If > 3,
+ * then Tcl_UniChar must be 4-bytes in size (UCS-4) (the default). If == 3,
+ * then Tcl_UniChar must be 2-bytes in size (UTF-16). Since Tcl 9.0, UCS-4
+ * mode is the default and recommended mode.
  */
 
 #ifndef TCL_UTF_MAX
-#define TCL_UTF_MAX		3
+#   define TCL_UTF_MAX		4
 #endif
 
 /*
@@ -2157,32 +2034,34 @@ typedef struct Tcl_Parse {
  * reflected in regcustom.h.
  */
 
-#if TCL_UTF_MAX > 3
+#if TCL_UTF_MAX == 4
     /*
-     * unsigned int isn't 100% accurate as it should be a strict 4-byte value.
-     * The size of this value must be reflected correctly in regcustom.h.
-     * XXX: Tcl is currently UCS-2 and planning UTF-16 for the Unicode
-     * XXX: string rep that Tcl_UniChar represents.  Changing the size
-     * XXX: of Tcl_UniChar is /not/ supported.
+     * int isn't 100% accurate as it should be a strict 4-byte value
+     * (perhaps int32_t). ILP64/SILP64 systems may have troubles. The
+     * size of this value must be reflected correctly in regcustom.h.
      */
-typedef unsigned int Tcl_UniChar;
-#else
+typedef int Tcl_UniChar;
+#elif TCL_UTF_MAX == 3 && !defined(BUILD_tcl)
 typedef unsigned short Tcl_UniChar;
+#else
+#   error "This TCL_UTF_MAX value is not supported"
 #endif
-
+
 /*
+ *----------------------------------------------------------------------------
  * TIP #59: The following structure is used in calls 'Tcl_RegisterConfig' to
  * provide the system with the embedded configuration data.
  */
 
 typedef struct Tcl_Config {
-    CONST char *key;		/* Configuration key to register. ASCII
+    const char *key;		/* Configuration key to register. ASCII
 				 * encoded, thus UTF-8. */
-    CONST char *value;		/* The value associated with the key. System
+    const char *value;		/* The value associated with the key. System
 				 * encoding. */
 } Tcl_Config;
 
 /*
+ *----------------------------------------------------------------------------
  * Flags for TIP#143 limits, detailing which limits are active in an
  * interpreter. Used for Tcl_{Add,Remove}LimitHandler type argument.
  */
@@ -2195,68 +2074,264 @@ typedef struct Tcl_Config {
  * command- or time-limit is exceeded by an interpreter.
  */
 
-typedef void (Tcl_LimitHandlerProc) _ANSI_ARGS_((ClientData clientData,
-	Tcl_Interp *interp));
-typedef void (Tcl_LimitHandlerDeleteProc) _ANSI_ARGS_((ClientData clientData));
+typedef void (Tcl_LimitHandlerProc) (void *clientData, Tcl_Interp *interp);
+#define Tcl_LimitHandlerDeleteProc Tcl_FreeProc
 
-typedef struct mp_int mp_int;
+#if 0
+/*
+ *----------------------------------------------------------------------------
+ * We would like to provide an anonymous structure "mp_int" here, which is
+ * compatible with libtommath's "mp_int", but without duplicating anything
+ * from <tommath.h> or including <tommath.h> here. But the libtommath project
+ * didn't honor our request. See: <https://github.com/libtom/libtommath/pull/473>
+ *
+ * That's why this part is commented out, and we are using (void *) in
+ * various API's in stead of the more correct (mp_int *).
+ */
+
+#ifndef MP_INT_DECLARED
 #define MP_INT_DECLARED
-typedef unsigned int mp_digit;
-#define MP_DIGIT_DECLARED
+typedef struct mp_int mp_int;
+#endif
+
+#endif
 
 /*
- * The following constant is used to test for older versions of Tcl in the
- * stubs tables.
+ *----------------------------------------------------------------------------
+ * Definitions needed for Tcl_ParseArgvObj routines.
+ * Based on tkArgv.c.
+ * Modifications from the original are copyright (c) Sam Bromley 2006
+ */
+
+typedef struct {
+    int type;			/* Indicates the option type; see below. */
+    const char *keyStr;		/* The key string that flags the option in the
+				 * argv array. */
+    void *srcPtr;		/* Value to be used in setting dst; usage
+				 * depends on type.*/
+    void *dstPtr;		/* Address of value to be modified; usage
+				 * depends on type.*/
+    const char *helpStr;	/* Documentation message describing this
+				 * option. */
+    void *clientData;		/* Word to pass to function callbacks. */
+} Tcl_ArgvInfo;
+
+/*
+ * Legal values for the type field of a Tcl_ArgInfo: see the user
+ * documentation for details.
+ */
+
+#define TCL_ARGV_CONSTANT	15
+#define TCL_ARGV_INT		16
+#define TCL_ARGV_STRING		17
+#define TCL_ARGV_REST		18
+#define TCL_ARGV_FLOAT		19
+#define TCL_ARGV_FUNC		20
+#define TCL_ARGV_GENFUNC	21
+#define TCL_ARGV_HELP		22
+#define TCL_ARGV_END		23
+
+/*
+ * Types of callback functions for the TCL_ARGV_FUNC and TCL_ARGV_GENFUNC
+ * argument types:
+ */
+
+typedef int (Tcl_ArgvFuncProc)(void *clientData, Tcl_Obj *objPtr,
+	void *dstPtr);
+typedef Tcl_Size (Tcl_ArgvGenFuncProc)(void *clientData, Tcl_Interp *interp,
+	Tcl_Size objc, Tcl_Obj *const *objv, void *dstPtr);
+
+/*
+ * Shorthand for commonly used argTable entries.
+ */
+
+#define TCL_ARGV_AUTO_HELP \
+    {TCL_ARGV_HELP,	"-help",	NULL,	NULL, \
+	    "Print summary of command-line options and abort", NULL}
+#define TCL_ARGV_AUTO_REST \
+    {TCL_ARGV_REST,	"--",		NULL,	NULL, \
+	    "Marks the end of the options", NULL}
+#define TCL_ARGV_TABLE_END \
+    {TCL_ARGV_END, NULL, NULL, NULL, NULL, NULL}
+
+/*
+ *----------------------------------------------------------------------------
+ * Definitions needed for Tcl_Zlib routines. [TIP #234]
  *
- * Jan Nijtman's plus patch uses 0xFCA1BACF, so we need to pick a different
- * value since the stubs tables don't match.
+ * Constants for the format flags describing what sort of data format is
+ * desired/expected for the Tcl_ZlibDeflate, Tcl_ZlibInflate and
+ * Tcl_ZlibStreamInit functions.
  */
 
-#define TCL_STUB_MAGIC		((int) 0xFCA3BACF)
+#define TCL_ZLIB_FORMAT_RAW	1
+#define TCL_ZLIB_FORMAT_ZLIB	2
+#define TCL_ZLIB_FORMAT_GZIP	4
+#define TCL_ZLIB_FORMAT_AUTO	8
 
 /*
- * The following function is required to be defined in all stubs aware
- * extensions. The function is actually implemented in the stub library, not
- * the main Tcl library, although there is a trivial implementation in the
- * main library in case an extension is statically linked into an application.
+ * Constants that describe whether the stream is to operate in compressing or
+ * decompressing mode.
  */
 
-EXTERN CONST char *	Tcl_InitStubs _ANSI_ARGS_((Tcl_Interp *interp,
-			    CONST char *version, int exact));
-EXTERN CONST char *	TclTomMathInitializeStubs _ANSI_ARGS_((
-			    Tcl_Interp *interp, CONST char *version,
-			    int epoch, int revision));
+#define TCL_ZLIB_STREAM_DEFLATE	16
+#define TCL_ZLIB_STREAM_INFLATE	32
 
-#ifndef USE_TCL_STUBS
+/*
+ * Constants giving compression levels. Use of TCL_ZLIB_COMPRESS_DEFAULT is
+ * recommended.
+ */
+
+#define TCL_ZLIB_COMPRESS_NONE	0
+#define TCL_ZLIB_COMPRESS_FAST	1
+#define TCL_ZLIB_COMPRESS_BEST	9
+#define TCL_ZLIB_COMPRESS_DEFAULT (-1)
 
 /*
- * When not using stubs, make it a macro.
+ * Constants for types of flushing, used with Tcl_ZlibFlush.
  */
 
-#define Tcl_InitStubs(interp, version, exact) \
-    Tcl_PkgInitStubsCheck(interp, version, exact)
+#define TCL_ZLIB_NO_FLUSH	0
+#define TCL_ZLIB_FLUSH		2
+#define TCL_ZLIB_FULLFLUSH	3
+#define TCL_ZLIB_FINALIZE	4
 
-#endif
+/*
+ *----------------------------------------------------------------------------
+ * Definitions needed for the Tcl_LoadFile function. [TIP #416]
+ */
 
-    /*
-     * TODO - tommath stubs export goes here!
-     */
+#define TCL_LOAD_GLOBAL 1
+#define TCL_LOAD_LAZY 2
+
+/*
+ *----------------------------------------------------------------------------
+ * Definitions needed for the Tcl_OpenTcpServerEx function. [TIP #456]
+ */
+#define TCL_TCPSERVER_REUSEADDR (1<<0)
+#define TCL_TCPSERVER_REUSEPORT (1<<1)
+
+/*
+ * Constants for special Tcl_Size-typed values, see TIP #494
+ */
+
+#define TCL_IO_FAILURE	((Tcl_Size)-1)
+#define TCL_AUTO_LENGTH	((Tcl_Size)-1)
+#define TCL_INDEX_NONE  ((Tcl_Size)-1)
 
+/*
+ *----------------------------------------------------------------------------
+ * Single public declaration for NRE.
+ */
+
+typedef int (Tcl_NRPostProc) (void *data[], Tcl_Interp *interp,
+				int result);
+
+/*
+ *----------------------------------------------------------------------------
+ * The following constant is used to test for older versions of Tcl in the
+ * stubs tables.
+ */
+
+#define TCL_STUB_MAGIC		((int) 0xFCA3BACB + (int) sizeof(void *))
+
+/*
+ * The following function is required to be defined in all stubs aware
+ * extensions. The function is actually implemented in the stub library, not
+ * the main Tcl library, although there is a trivial implementation in the
+ * main library in case an extension is statically linked into an application.
+ */
+
+const char *		Tcl_InitStubs(Tcl_Interp *interp, const char *version,
+			    int exact, int magic);
+const char *		TclTomMathInitializeStubs(Tcl_Interp *interp,
+			    const char *version, int epoch, int revision);
+const char *		TclInitStubTable(const char *version);
+void *			TclStubCall(void *arg);
+#if defined(_WIN32)
+    TCL_NORETURN void Tcl_ConsolePanic(const char *format, ...);
+#else
+#   define Tcl_ConsolePanic ((Tcl_PanicProc *)NULL)
+#endif
+
+#ifdef USE_TCL_STUBS
+#   define Tcl_InitStubs(interp, version, exact) \
+	(Tcl_InitStubs)(interp, version, \
+	    (exact)|(TCL_MAJOR_VERSION<<8)|(TCL_MINOR_VERSION<<16), \
+	    TCL_STUB_MAGIC)
+#else
+#   define Tcl_InitStubs(interp, version, exact) \
+	Tcl_PkgInitStubsCheck(interp, version, \
+		(exact)|(TCL_MAJOR_VERSION<<8)|(TCL_MINOR_VERSION<<16))
+#endif
 
 /*
  * Public functions that are not accessible via the stubs table.
  * Tcl_GetMemoryInfo is needed for AOLserver. [Bug 1868171]
  */
 
-EXTERN void		Tcl_Main _ANSI_ARGS_((int argc, char **argv,
-			    Tcl_AppInitProc *appInitProc));
-EXTERN CONST char *	Tcl_PkgInitStubsCheck _ANSI_ARGS_((Tcl_Interp *interp,
-			    CONST char *version, int exact));
-#if defined(TCL_THREADS) && defined(USE_THREAD_ALLOC)
-EXTERN void		Tcl_GetMemoryInfo _ANSI_ARGS_((Tcl_DString *dsPtr));
+#define Tcl_Main(argc, argv, proc) Tcl_MainEx(argc, argv, proc, \
+	    ((Tcl_SetPanicProc(Tcl_ConsolePanic), Tcl_CreateInterp())))
+EXTERN TCL_NORETURN void Tcl_MainEx(Tcl_Size argc, char **argv,
+			    Tcl_AppInitProc *appInitProc, Tcl_Interp *interp);
+EXTERN const char *	Tcl_PkgInitStubsCheck(Tcl_Interp *interp,
+			    const char *version, int exact);
+EXTERN const char *	Tcl_InitSubsystems(void);
+EXTERN void		Tcl_GetMemoryInfo(Tcl_DString *dsPtr);
+EXTERN const char *	Tcl_FindExecutable(const char *argv0);
+EXTERN const char *	Tcl_SetPreInitScript(const char *string);
+EXTERN const char *	Tcl_SetPanicProc(
+			    Tcl_PanicProc *panicProc);
+EXTERN void		Tcl_StaticLibrary(Tcl_Interp *interp,
+			    const char *prefix,
+			    Tcl_LibraryInitProc *initProc,
+			    Tcl_LibraryInitProc *safeInitProc);
+#ifndef TCL_NO_DEPRECATED
+#   define Tcl_StaticPackage Tcl_StaticLibrary
 #endif
-
+EXTERN Tcl_ExitProc *	Tcl_SetExitProc(Tcl_ExitProc *proc);
+#ifdef _WIN32
+EXTERN const char *TclZipfs_AppHook(int *argc, wchar_t ***argv);
+#else
+EXTERN const char *TclZipfs_AppHook(int *argc, char ***argv);
+#endif
+#if defined(_WIN32) && defined(UNICODE)
+#ifndef USE_TCL_STUBS
+#   define Tcl_FindExecutable(arg) ((Tcl_FindExecutable)((const char *)(arg)))
+#endif
+#   define Tcl_MainEx Tcl_MainExW
+    EXTERN TCL_NORETURN void Tcl_MainExW(Tcl_Size argc, wchar_t **argv,
+	    Tcl_AppInitProc *appInitProc, Tcl_Interp *interp);
+#endif
+#if defined(USE_TCL_STUBS)
+#define Tcl_SetPanicProc(panicProc) \
+    TclInitStubTable(((const char *(*)(Tcl_PanicProc *))TclStubCall((void *)panicProc))(panicProc))
+#define Tcl_InitSubsystems() \
+    TclInitStubTable(((const char *(*)(void))TclStubCall((void *)1))())
+#define Tcl_FindExecutable(argv0) \
+    TclInitStubTable(((const char *(*)(const char *))TclStubCall((void *)2))(argv0))
+#define TclZipfs_AppHook(argcp, argvp) \
+	TclInitStubTable(((const char *(*)(int *, void *))TclStubCall((void *)3))(argcp, argvp))
+#define Tcl_MainExW(argc, argv, appInitProc, interp) \
+	(void)((const char *(*)(Tcl_Size, const void *, Tcl_AppInitProc *, Tcl_Interp *)) \
+	TclStubCall((void *)4))(argc, argv, appInitProc, interp)
+#if !defined(_WIN32) || !defined(UNICODE)
+#define Tcl_MainEx(argc, argv, appInitProc, interp) \
+	(void)((const char *(*)(Tcl_Size, const void *, Tcl_AppInitProc *, Tcl_Interp *)) \
+	TclStubCall((void *)5))(argc, argv, appInitProc, interp)
+#endif
+#define Tcl_StaticLibrary(interp, pkgName, initProc, safeInitProc) \
+	(void)((const char *(*)(Tcl_Interp *, const char *, Tcl_LibraryInitProc *, Tcl_LibraryInitProc *)) \
+	TclStubCall((void *)6))(interp, pkgName, initProc, safeInitProc)
+#define Tcl_SetExitProc(proc) \
+	((Tcl_ExitProc *(*)(Tcl_ExitProc *))TclStubCall((void *)7))(proc)
+#define Tcl_GetMemoryInfo(dsPtr) \
+	(void)((const char *(*)(Tcl_DString *))TclStubCall((void *)8))(dsPtr)
+#define Tcl_SetPreInitScript(string) \
+	((const char *(*)(const char *))TclStubCall((void *)9))(string)
+#endif
+
 /*
+ *----------------------------------------------------------------------------
  * Include the public function declarations that are accessible via the stubs
  * table.
  */
@@ -2265,26 +2340,39 @@ EXTERN void		Tcl_GetMemoryInfo _ANSI_ARGS_((Tcl_DString *dsPtr));
 
 /*
  * Include platform specific public function declarations that are accessible
- * via the stubs table.
+ * via the stubs table. Make all TclOO symbols MODULE_SCOPE (which only
+ * has effect on building it as a shared library). See ticket [3010352].
  */
 
+#if defined(BUILD_tcl)
+#   undef TCLAPI
+#   define TCLAPI MODULE_SCOPE
+#endif
+
 #include "tclPlatDecls.h"
 
 /*
- * The following declarations either map ckalloc and ckfree to malloc and
- * free, or they map them to functions with all sorts of debugging hooks
- * defined in tclCkalloc.c.
+ *----------------------------------------------------------------------------
+ * The following declarations map ckalloc and ckfree to Tcl_Alloc and
+ * Tcl_Free for use in Tcl-8.x-compatible extensions.
  */
 
-#ifdef TCL_MEM_DEBUG
-
-#   define ckalloc(x) Tcl_DbCkalloc(x, __FILE__, __LINE__)
-#   define ckfree(x)  Tcl_DbCkfree(x, __FILE__, __LINE__)
-#   define ckrealloc(x,y) Tcl_DbCkrealloc((x), (y),__FILE__, __LINE__)
-#   define attemptckalloc(x) Tcl_AttemptDbCkalloc(x, __FILE__, __LINE__)
-#   define attemptckrealloc(x,y) Tcl_AttemptDbCkrealloc((x), (y), __FILE__, __LINE__)
+#ifndef BUILD_tcl
+#   define ckalloc Tcl_Alloc
+#   define attemptckalloc Tcl_AttemptAlloc
+#   ifdef _MSC_VER
+	/* Silence invalid C4090 warnings */
+#	define ckfree(a) Tcl_Free((void *)(a))
+#	define ckrealloc(a,b) Tcl_Realloc((void *)(a),(b))
+#	define attemptckrealloc(a,b) Tcl_AttemptRealloc((void *)(a),(b))
+#   else
+#	define ckfree Tcl_Free
+#	define ckrealloc Tcl_Realloc
+#	define attemptckrealloc Tcl_AttemptRealloc
+#   endif
+#endif
 
-#else /* !TCL_MEM_DEBUG */
+#ifndef TCL_MEM_DEBUG
 
 /*
  * If we are not using the debugging allocator, we should call the Tcl_Alloc,
@@ -2292,11 +2380,6 @@ EXTERN void		Tcl_GetMemoryInfo _ANSI_ARGS_((Tcl_DString *dsPtr));
  * memory allocator both inside and outside of the Tcl library.
  */
 
-#   define ckalloc(x) Tcl_Alloc(x)
-#   define ckfree(x) Tcl_Free(x)
-#   define ckrealloc(x,y) Tcl_Realloc(x,y)
-#   define attemptckalloc(x) Tcl_AttemptAlloc(x)
-#   define attemptckrealloc(x,y) Tcl_AttemptRealloc(x,y)
 #   undef  Tcl_InitMemory
 #   define Tcl_InitMemory(x)
 #   undef  Tcl_DumpActiveMemory
@@ -2307,28 +2390,76 @@ EXTERN void		Tcl_GetMemoryInfo _ANSI_ARGS_((Tcl_DString *dsPtr));
 #endif /* !TCL_MEM_DEBUG */
 
 #ifdef TCL_MEM_DEBUG
+#   undef Tcl_IncrRefCount
 #   define Tcl_IncrRefCount(objPtr) \
 	Tcl_DbIncrRefCount(objPtr, __FILE__, __LINE__)
+#   undef Tcl_DecrRefCount
 #   define Tcl_DecrRefCount(objPtr) \
 	Tcl_DbDecrRefCount(objPtr, __FILE__, __LINE__)
+#   undef Tcl_IsShared
 #   define Tcl_IsShared(objPtr) \
 	Tcl_DbIsShared(objPtr, __FILE__, __LINE__)
+/*
+ * Free the Obj by effectively doing:
+ *
+ *   Tcl_IncrRefCount(objPtr);
+ *   Tcl_DecrRefCount(objPtr);
+ *
+ * This will free the obj if there are no references to the obj.
+ */
+#   define Tcl_BounceRefCount(objPtr) \
+    TclBounceRefCount(objPtr, __FILE__, __LINE__)
+
+static inline void
+TclBounceRefCount(
+    Tcl_Obj* objPtr,
+    const char* fn,
+    int line)
+{
+    if (objPtr) {
+	if ((objPtr)->refCount == 0) {
+	    Tcl_DbDecrRefCount(objPtr, fn, line);
+	}
+    }
+}
 #else
+#   undef Tcl_IncrRefCount
 #   define Tcl_IncrRefCount(objPtr) \
-	++(objPtr)->refCount
+	((void)++(objPtr)->refCount)
     /*
      * Use do/while0 idiom for optimum correctness without compiler warnings.
-     * http://c2.com/cgi/wiki?TrivialDoWhileLoop
+     * https://wiki.c2.com/?TrivialDoWhileLoop
      */
+#   undef Tcl_DecrRefCount
 #   define Tcl_DecrRefCount(objPtr) \
-	do { \
-	    Tcl_Obj *_objPtr = (objPtr); \
-	    if (--(_objPtr)->refCount <= 0) { \
-		TclFreeObj(_objPtr); \
-	    } \
+	do {								\
+	    Tcl_Obj *_objPtr = (objPtr);				\
+	    if (_objPtr->refCount-- <= 1) {				\
+		TclFreeObj(_objPtr);					\
+	    }								\
 	} while(0)
+#   undef Tcl_IsShared
 #   define Tcl_IsShared(objPtr) \
 	((objPtr)->refCount > 1)
+
+/*
+ * Declare that obj will no longer be used or referenced.
+ * This will free the obj if there are no references to the obj.
+ */
+#   define Tcl_BounceRefCount(objPtr) \
+    TclBounceRefCount(objPtr);
+
+static inline void
+TclBounceRefCount(
+    Tcl_Obj* objPtr)
+{
+    if (objPtr) {
+	if ((objPtr)->refCount == 0) {
+	    Tcl_DecrRefCount(objPtr);
+	}
+    }
+}
+
 #endif
 
 /*
@@ -2343,22 +2474,16 @@ EXTERN void		Tcl_GetMemoryInfo _ANSI_ARGS_((Tcl_DString *dsPtr));
      Tcl_DbNewBignumObj(val, __FILE__, __LINE__)
 #  undef  Tcl_NewBooleanObj
 #  define Tcl_NewBooleanObj(val) \
-     Tcl_DbNewBooleanObj(val, __FILE__, __LINE__)
+     Tcl_DbNewWideIntObj((val)!=0, __FILE__, __LINE__)
 #  undef  Tcl_NewByteArrayObj
 #  define Tcl_NewByteArrayObj(bytes, len) \
      Tcl_DbNewByteArrayObj(bytes, len, __FILE__, __LINE__)
 #  undef  Tcl_NewDoubleObj
 #  define Tcl_NewDoubleObj(val) \
      Tcl_DbNewDoubleObj(val, __FILE__, __LINE__)
-#  undef  Tcl_NewIntObj
-#  define Tcl_NewIntObj(val) \
-     Tcl_DbNewLongObj(val, __FILE__, __LINE__)
 #  undef  Tcl_NewListObj
 #  define Tcl_NewListObj(objc, objv) \
      Tcl_DbNewListObj(objc, objv, __FILE__, __LINE__)
-#  undef  Tcl_NewLongObj
-#  define Tcl_NewLongObj(val) \
-     Tcl_DbNewLongObj(val, __FILE__, __LINE__)
 #  undef  Tcl_NewObj
 #  define Tcl_NewObj() \
      Tcl_DbNewObj(__FILE__, __LINE__)
@@ -2371,79 +2496,58 @@ EXTERN void		Tcl_GetMemoryInfo _ANSI_ARGS_((Tcl_DString *dsPtr));
 #endif /* TCL_MEM_DEBUG */
 
 /*
+ *----------------------------------------------------------------------------
  * Macros for clients to use to access fields of hash entries:
  */
 
 #define Tcl_GetHashValue(h) ((h)->clientData)
-#define Tcl_SetHashValue(h, value) ((h)->clientData = (ClientData) (value))
+#define Tcl_SetHashValue(h, value) ((h)->clientData = (void *)(value))
 #define Tcl_GetHashKey(tablePtr, h) \
-	((char *) (((tablePtr)->keyType == TCL_ONE_WORD_KEYS || \
-		    (tablePtr)->keyType == TCL_CUSTOM_PTR_KEYS) \
-		   ? (h)->key.oneWordValue \
-		   : (h)->key.string))
+	((void *) (((tablePtr)->keyType == TCL_ONE_WORD_KEYS ||		\
+		    (tablePtr)->keyType == TCL_CUSTOM_PTR_KEYS)		\
+		? (h)->key.oneWordValue					\
+		: (h)->key.string))
 
 /*
  * Macros to use for clients to use to invoke find and create functions for
  * hash tables:
  */
 
-#undef  Tcl_FindHashEntry
 #define Tcl_FindHashEntry(tablePtr, key) \
-	(*((tablePtr)->findProc))(tablePtr, key)
-#undef  Tcl_CreateHashEntry
-#define Tcl_CreateHashEntry(tablePtr, key, newPtr) \
-	(*((tablePtr)->createProc))(tablePtr, key, newPtr)
-
-/*
- * Macros that eliminate the overhead of the thread synchronization functions
- * when compiling without thread support.
- */
-
-#ifndef TCL_THREADS
-#undef  Tcl_MutexLock
-#define Tcl_MutexLock(mutexPtr)
-#undef  Tcl_MutexUnlock
-#define Tcl_MutexUnlock(mutexPtr)
-#undef  Tcl_MutexFinalize
-#define Tcl_MutexFinalize(mutexPtr)
-#undef  Tcl_ConditionNotify
-#define Tcl_ConditionNotify(condPtr)
-#undef  Tcl_ConditionWait
-#define Tcl_ConditionWait(condPtr, mutexPtr, timePtr)
-#undef  Tcl_ConditionFinalize
-#define Tcl_ConditionFinalize(condPtr)
-#endif /* TCL_THREADS */
+	(*((tablePtr)->createProc))(tablePtr, (const char *)(key), (int *)-1)
 
-#ifndef TCL_NO_DEPRECATED
-    /*
-     * These function have been renamed. The old names are deprecated, but we
-     * define these macros for backwards compatibilty.
-     */
-
-#   define Tcl_Ckalloc		Tcl_Alloc
-#   define Tcl_Ckfree		Tcl_Free
-#   define Tcl_Ckrealloc	Tcl_Realloc
-#   define Tcl_Return		Tcl_SetResult
-#   define Tcl_TildeSubst	Tcl_TranslateFileName
-#if !defined(__APPLE__) /* On OSX, there is a conflict with "mach/mach.h" */
-#   define panic		Tcl_Panic
-#endif
-#   define panicVA		Tcl_PanicVA
+#ifdef TCL_MEM_DEBUG
+static inline Tcl_HashEntry *
+TclDbPanicIfNull(
+    Tcl_HashEntry *entry,
+	int *newPtr,
+	const char *file,
+	const char *line)
+{
+    if (!entry && newPtr != (int *)-1) {
+	Tcl_Panic("%s: Memory overflow in file %s:%d", "Tcl_CreateHashEntry", file, line);
+    }
+    return entry;
+}
+#define Tcl_CreateHashEntry(tablePtr, key, newPtr) \
+	TclDbPanicIfNull((*((tablePtr)->createProc))(tablePtr, (const char *)(key), (newPtr)), (newPtr), __FILE__, __LINE__)
+#else
+static inline Tcl_HashEntry *
+TclPanicIfNull(
+    Tcl_HashEntry *entry,
+	int *newPtr)
+{
+    if (!entry && newPtr != (int *)-1) {
+	Tcl_Panic("%s: Memory overflow", "Tcl_CreateHashEntry");
+    }
+    return entry;
+}
+#define Tcl_CreateHashEntry(tablePtr, key, newPtr) \
+	TclPanicIfNull((*((tablePtr)->createProc))(tablePtr, (const char *)(key), (newPtr)), (newPtr))
 #endif
 
-/*
- * Convenience declaration of Tcl_AppInit for backwards compatibility. This
- * function is not *implemented* by the tcl library, so the storage class is
- * neither DLLEXPORT nor DLLIMPORT.
- */
-
-#undef TCL_STORAGE_CLASS
-#define TCL_STORAGE_CLASS
-
-EXTERN int		Tcl_AppInit _ANSI_ARGS_((Tcl_Interp *interp));
-
-#undef TCL_STORAGE_CLASS
-#define TCL_STORAGE_CLASS DLLIMPORT
+#define Tcl_AttemptCreateHashEntry(tablePtr, key, newPtr) \
+	(*((tablePtr)->createProc))(tablePtr, (const char *)(key), newPtr)
 
 #endif /* RC_INVOKED */
 
diff --git a/generic/tclAlloc.c b/generic/tclAlloc.c
index 675e1a4..b52d1b3 100644
--- a/generic/tclAlloc.c
+++ b/generic/tclAlloc.c
@@ -6,9 +6,9 @@
  *	that don't exactly fit are passed up to the next larger size. Blocks
  *	over a certain size are directly allocated from the system.
  *
- * Copyright (c) 1983 Regents of the University of California.
- * Copyright (c) 1996-1997 Sun Microsystems, Inc.
- * Copyright (c) 1998-1999 by Scriptics Corporation.
+ * Copyright © 1983 Regents of the University of California.
+ * Copyright © 1996-1997 Sun Microsystems, Inc.
+ * Copyright © 1998-1999 Scriptics Corporation.
  *
  * Portions contributed by Chris Kingsley, Jack Jansen and Ray Johnson.
  *
@@ -22,17 +22,17 @@
  */
 
 #include "tclInt.h"
-#if !defined(TCL_THREADS) || !defined(USE_THREAD_ALLOC)
+#if !TCL_THREADS || !defined(USE_THREAD_ALLOC)
 
-#if USE_TCLALLOC
+#if defined(USE_TCLALLOC) && USE_TCLALLOC
 
 /*
  * We should really make use of AC_CHECK_TYPE(caddr_t) here, but it can wait
  * until Tcl uses config.h properly.
  */
 
-#if defined(_MSC_VER) || defined(__MSVCRT__) || defined(__BORLANDC__)
-typedef unsigned long caddr_t;
+#if defined(_MSC_VER) || defined(__MSVCRT__)
+typedef size_t caddr_t;
 #endif
 
 /*
@@ -47,17 +47,18 @@ typedef unsigned long caddr_t;
  */
 
 union overhead {
-    union overhead *next;		/* when free */
-    unsigned char padding[TCL_ALLOCALIGN];	/* align struct to TCL_ALLOCALIGN bytes */
+    union overhead *next;	/* when free */
+    unsigned char padding[TCL_ALLOCALIGN];
+				/* align struct to TCL_ALLOCALIGN bytes */
     struct {
-	unsigned char magic0;		/* magic number */
-	unsigned char index;		/* bucket # */
-	unsigned char unused;		/* unused */
-	unsigned char magic1;		/* other magic number */
+	unsigned char magic0;	/* magic number */
+	unsigned char index;	/* bucket # */
+	unsigned char unused;	/* unused */
+	unsigned char magic1;	/* other magic number */
 #ifndef NDEBUG
-	unsigned short rmagic;		/* range magic number */
-	unsigned long size;		/* actual block size */
-	unsigned short unused2;		/* padding to 8-byte align */
+	unsigned short rmagic;	/* range magic number */
+	size_t size;		/* actual block size */
+	unsigned short unused2;	/* padding to 8-byte align */
 #endif
     } ovu;
 #define overMagic0	ovu.magic0
@@ -67,12 +68,11 @@ union overhead {
 #define realBlockSize	ovu.size
 };
 
-
-#define MAGIC		0xef	/* magic # on accounting info */
+#define MAGIC		0xEF	/* magic # on accounting info */
 #define RMAGIC		0x5555	/* magic # on range info */
 
 #ifndef NDEBUG
-#define	RSLOP		sizeof (unsigned short)
+#define	RSLOP		sizeof(unsigned short)
 #else
 #define	RSLOP		0
 #endif
@@ -92,9 +92,10 @@ union overhead {
  * precedes the data area returned to the user.
  */
 
-#define MINBLOCK	((sizeof(union overhead) + (TCL_ALLOCALIGN-1)) & ~(TCL_ALLOCALIGN-1))
+#define MINBLOCK \
+    ((sizeof(union overhead) + (TCL_ALLOCALIGN-1)) & ~(TCL_ALLOCALIGN-1))
 #define NBUCKETS	(13 - (MINBLOCK >> 4))
-#define MAXMALLOC	(1<<(NBUCKETS+2))
+#define MAXMALLOC	((size_t)1 << (NBUCKETS+2))
 static union overhead *nextf[NBUCKETS];
 
 /*
@@ -116,12 +117,12 @@ static struct block bigBlocks={	/* Big blocks aren't suballocated. */
 
 /*
  * The allocator is protected by a special mutex that must be explicitly
- * initialized. Futhermore, because Tcl_Alloc may be used before anything else
+ * initialized. Furthermore, because Tcl_Alloc may be used before anything else
  * in Tcl, we make this module self-initializing after all with the allocInit
  * variable.
  */
 
-#ifdef TCL_THREADS
+#if TCL_THREADS
 static Tcl_Mutex *allocMutexPtr;
 #endif
 static int allocInit = 0;
@@ -133,8 +134,7 @@ static int allocInit = 0;
  * a given block size.
  */
 
-static	unsigned int numMallocs[NBUCKETS+1];
-#include <stdio.h>
+static	size_t numMallocs[NBUCKETS+1];
 #endif
 
 #if !defined(NDEBUG)
@@ -149,7 +149,7 @@ static	unsigned int numMallocs[NBUCKETS+1];
  * Prototypes for functions used only in this file.
  */
 
-static void 		MoreCore(int bucket);
+static void		MoreCore(size_t bucket);
 
 /*
  *-------------------------------------------------------------------------
@@ -172,7 +172,7 @@ TclInitAlloc(void)
 {
     if (!allocInit) {
 	allocInit = 1;
-#ifdef TCL_THREADS
+#if TCL_THREADS
 	allocMutexPtr = Tcl_GetAllocMutex();
 #endif
     }
@@ -250,13 +250,13 @@ TclFinalizeAllocSubsystem(void)
  *----------------------------------------------------------------------
  */
 
-char *
+void *
 TclpAlloc(
-    unsigned int numBytes)	/* Number of bytes to allocate. */
+    size_t numBytes)		/* Number of bytes to allocate. */
 {
-    register union overhead *overPtr;
-    register long bucket;
-    register unsigned amount;
+    union overhead *overPtr;
+    size_t bucket;
+    size_t amount;
     struct block *bigBlockPtr = NULL;
 
     if (!allocInit) {
@@ -275,8 +275,8 @@ TclpAlloc(
 
     if (numBytes >= MAXMALLOC - OVERHEAD) {
 	if (numBytes <= UINT_MAX - OVERHEAD -sizeof(struct block)) {
-	    bigBlockPtr = (struct block *) TclpSysAlloc((unsigned)
-		    (sizeof(struct block) + OVERHEAD + numBytes), 0);
+	    bigBlockPtr = TclpSysAlloc(
+		    sizeof(struct block) + OVERHEAD + numBytes);
 	}
 	if (bigBlockPtr == NULL) {
 	    Tcl_MutexUnlock(allocMutexPtr);
@@ -289,7 +289,7 @@ TclpAlloc(
 
 	overPtr = (union overhead *) (bigBlockPtr + 1);
 	overPtr->overMagic0 = overPtr->overMagic1 = MAGIC;
-	overPtr->bucketIndex = 0xff;
+	overPtr->bucketIndex = 0xFF;
 #ifdef MSTATS
 	numMallocs[NBUCKETS]++;
 #endif
@@ -346,7 +346,7 @@ TclpAlloc(
 
     nextf[bucket] = overPtr->next;
     overPtr->overMagic0 = overPtr->overMagic1 = MAGIC;
-    overPtr->bucketIndex = (unsigned char) bucket;
+    overPtr->bucketIndex = UCHAR(bucket);
 
 #ifdef MSTATS
     numMallocs[bucket]++;
@@ -386,12 +386,12 @@ TclpAlloc(
 
 static void
 MoreCore(
-    int bucket)			/* What bucket to allocat to. */
+    size_t bucket)		/* What bucket to allocate to. */
 {
-    register union overhead *overPtr;
-    register long size;		/* size of desired block */
-    long amount;		/* amount to allocate */
-    int numBlocks;		/* how many blocks we get */
+    union overhead *overPtr;
+    size_t size;		/* size of desired block */
+    size_t amount;		/* amount to allocate */
+    size_t numBlocks;		/* how many blocks we get */
     struct block *blockPtr;
 
     /*
@@ -399,15 +399,14 @@ MoreCore(
      * VAX, I think) or for a negative arg.
      */
 
-    size = 1 << (bucket + 3);
+    size = ((size_t)1) << (bucket + 3);
     ASSERT(size > 0);
 
     amount = MAXMALLOC;
     numBlocks = amount / size;
     ASSERT(numBlocks*size == amount);
 
-    blockPtr = (struct block *) TclpSysAlloc((unsigned)
-	    (sizeof(struct block) + amount), 1);
+    blockPtr = TclpSysAlloc(sizeof(struct block) + amount);
     /* no more room! */
     if (blockPtr == NULL) {
 	return;
@@ -447,10 +446,10 @@ MoreCore(
 
 void
 TclpFree(
-    char *oldPtr)		/* Pointer to memory to free. */
+    void *oldPtr)		/* Pointer to memory to free. */
 {
-    register long size;
-    register union overhead *overPtr;
+    size_t size;
+    union overhead *overPtr;
     struct block *bigBlockPtr;
 
     if (oldPtr == NULL) {
@@ -458,7 +457,7 @@ TclpFree(
     }
 
     Tcl_MutexLock(allocMutexPtr);
-    overPtr = (union overhead *)((caddr_t)oldPtr - sizeof (union overhead));
+    overPtr = (union overhead *)((caddr_t)oldPtr - sizeof(union overhead));
 
     ASSERT(overPtr->overMagic0 == MAGIC);	/* make sure it was in use */
     ASSERT(overPtr->overMagic1 == MAGIC);
@@ -470,7 +469,7 @@ TclpFree(
     RANGE_ASSERT(overPtr->rangeCheckMagic == RMAGIC);
     RANGE_ASSERT(BLOCK_END(overPtr) == RMAGIC);
     size = overPtr->bucketIndex;
-    if (size == 0xff) {
+    if (size == 0xFF) {
 #ifdef MSTATS
 	numMallocs[NBUCKETS]--;
 #endif
@@ -510,16 +509,16 @@ TclpFree(
  *----------------------------------------------------------------------
  */
 
-char *
+void *
 TclpRealloc(
-    char *oldPtr,		/* Pointer to alloced block. */
-    unsigned int numBytes)	/* New size of memory. */
+    void *oldPtr,		/* Pointer to alloc'ed block. */
+    size_t numBytes)		/* New size of memory. */
 {
     int i;
     union overhead *overPtr;
     struct block *bigBlockPtr;
     int expensive;
-    unsigned long maxSize;
+    size_t maxSize;
 
     if (oldPtr == NULL) {
 	return TclpAlloc(numBytes);
@@ -527,7 +526,7 @@ TclpRealloc(
 
     Tcl_MutexLock(allocMutexPtr);
 
-    overPtr = (union overhead *)((caddr_t)oldPtr - sizeof (union overhead));
+    overPtr = (union overhead *)((caddr_t)oldPtr - sizeof(union overhead));
 
     ASSERT(overPtr->overMagic0 == MAGIC);	/* make sure it was in use */
     ASSERT(overPtr->overMagic1 == MAGIC);
@@ -544,7 +543,7 @@ TclpRealloc(
      * If the block isn't in a bin, just realloc it.
      */
 
-    if (i == 0xff) {
+    if (i == 0xFF) {
 	struct block *prevPtr, *nextPtr;
 	bigBlockPtr = (struct block *) overPtr - 1;
 	prevPtr = bigBlockPtr->prevPtr;
@@ -582,9 +581,9 @@ TclpRealloc(
 #endif
 
 	Tcl_MutexUnlock(allocMutexPtr);
-	return (char *)(overPtr+1);
+	return (void *)(overPtr+1);
     }
-    maxSize = 1 << (i+3);
+    maxSize = (size_t)1 << (i+3);
     expensive = 0;
     if (numBytes+OVERHEAD > maxSize) {
 	expensive = 1;
@@ -605,13 +604,13 @@ TclpRealloc(
 	if (maxSize < numBytes) {
 	    numBytes = maxSize;
 	}
-	memcpy(newPtr, oldPtr, (size_t) numBytes);
+	memcpy(newPtr, oldPtr, numBytes);
 	TclpFree(oldPtr);
 	return newPtr;
     }
 
     /*
-     * Ok, we don't have to copy, it fits as-is
+     * No need to copy. It fits as-is.
      */
 
 #ifndef NDEBUG
@@ -646,29 +645,29 @@ void
 mstats(
     char *s)			/* Where to write info. */
 {
-    register int i, j;
-    register union overhead *overPtr;
-    int totalFree = 0, totalUsed = 0;
+    unsigned int i, j;
+    union overhead *overPtr;
+    size_t totalFree = 0, totalUsed = 0;
 
     Tcl_MutexLock(allocMutexPtr);
 
     fprintf(stderr, "Memory allocation statistics %s\nTclpFree:\t", s);
     for (i = 0; i < NBUCKETS; i++) {
 	for (j=0, overPtr=nextf[i]; overPtr; overPtr=overPtr->next, j++) {
-	    fprintf(stderr, " %d", j);
+	    fprintf(stderr, " %u", j);
 	}
-	totalFree += j * (1 << (i + 3));
+	totalFree += ((size_t)j) * ((size_t)1 << (i + 3));
     }
 
     fprintf(stderr, "\nused:\t");
     for (i = 0; i < NBUCKETS; i++) {
-	fprintf(stderr, " %d", numMallocs[i]);
-	totalUsed += numMallocs[i] * (1 << (i + 3));
+	fprintf(stderr, " %" TCL_Z_MODIFIER "u", numMallocs[i]);
+	totalUsed += numMallocs[i] * ((size_t)1 << (i + 3));
     }
 
-    fprintf(stderr, "\n\tTotal small in use: %d, total free: %d\n",
-	    totalUsed, totalFree);
-    fprintf(stderr, "\n\tNumber of big (>%d) blocks in use: %d\n",
+    fprintf(stderr, "\n\tTotal small in use: %" TCL_Z_MODIFIER "u, total free: %" TCL_Z_MODIFIER "u\n",
+	totalUsed, totalFree);
+    fprintf(stderr, "\n\tNumber of big (>%" TCL_Z_MODIFIER "u) blocks in use: %" TCL_Z_MODIFIER "u\n",
 	    MAXMALLOC, numMallocs[NBUCKETS]);
 
     Tcl_MutexUnlock(allocMutexPtr);
@@ -693,11 +692,12 @@ mstats(
  *----------------------------------------------------------------------
  */
 
-char *
+#undef TclpAlloc
+void *
 TclpAlloc(
-    unsigned int numBytes)	/* Number of bytes to allocate. */
+    size_t numBytes)	/* Number of bytes to allocate. */
 {
-    return (char*) malloc(numBytes);
+    return malloc(numBytes);
 }
 
 /*
@@ -716,9 +716,10 @@ TclpAlloc(
  *----------------------------------------------------------------------
  */
 
+#undef TclpFree
 void
 TclpFree(
-    char *oldPtr)		/* Pointer to memory to free. */
+    void *oldPtr)		/* Pointer to memory to free. */
 {
     free(oldPtr);
     return;
@@ -740,15 +741,17 @@ TclpFree(
  *----------------------------------------------------------------------
  */
 
-char *
+void *
 TclpRealloc(
-    char *oldPtr,		/* Pointer to alloced block. */
-    unsigned int numBytes)	/* New size of memory. */
+    void *oldPtr,		/* Pointer to alloced block. */
+    size_t numBytes)		/* New size of memory. */
 {
-    return (char*) realloc(oldPtr, numBytes);
+    return realloc(oldPtr, numBytes);
 }
 
 #endif /* !USE_TCLALLOC */
+#else
+TCL_MAC_EMPTY_FILE(generic_tclAlloc_c)
 #endif /* !TCL_THREADS */
 
 /*
diff --git a/generic/tclArithSeries.c b/generic/tclArithSeries.c
new file mode 100755
index 0000000..2192e7e
--- /dev/null
+++ b/generic/tclArithSeries.c
@@ -0,0 +1,1310 @@
+/*
+ * tclArithSeries.c --
+ *
+ *     This file contains the ArithSeries concrete abstract list
+ *     implementation. It implements the inner workings of the lseq command.
+ *
+ * Copyright © 2022 Brian S. Griffin.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include "tclInt.h"
+#include <assert.h>
+#include <math.h>
+
+/*
+ * The structure below defines the arithmetic series Tcl object type by
+ * means of procedures that can be invoked by generic object code.
+ *
+ * The arithmetic series object is a special case of Tcl list representing
+ * an interval of an arithmetic series in constant space.
+ *
+ * The arithmetic series is internally represented with three integers,
+ * *start*, *end*, and *step*, Where the length is calculated with
+ * the following algorithm:
+ *
+ * if RANGE == 0 THEN
+ *   ERROR
+ * if RANGE > 0
+ *   LEN is (((END-START)-1)/STEP) + 1
+ * else if RANGE < 0
+ *   LEN is (((END-START)-1)/STEP) - 1
+ *
+ * And where the equivalent's list I-th element is calculated
+ * as:
+ *
+ * LIST[i] = START + (STEP * i)
+ *
+ * Zero elements ranges, like in the case of START=10 END=10 STEP=1
+ * are valid and will be equivalent to the empty list.
+ */
+
+/*
+ * The structure used for the ArithSeries internal representation.
+ * Note that the len can in theory be always computed by start,end,step
+ * but it's faster to cache it inside the internal representation.
+ */
+
+typedef struct {
+    Tcl_Size len;
+    Tcl_Obj **elements;
+    int isDouble;
+    Tcl_Size refCount;
+} ArithSeries;
+
+typedef struct {
+    ArithSeries base;
+    Tcl_WideInt start;
+    Tcl_WideInt step;
+} ArithSeriesInt;
+
+typedef struct {
+    ArithSeries base;
+    double start;
+    double step;
+    unsigned precision;		/* Number of decimal places to render. */
+} ArithSeriesDbl;
+
+/* Forward declarations. */
+
+static int		TclArithSeriesObjIndex(TCL_UNUSED(Tcl_Interp *),
+			    Tcl_Obj *arithSeriesObj, Tcl_Size index,
+			    Tcl_Obj **elemObj);
+static Tcl_Size		ArithSeriesObjLength(Tcl_Obj *arithSeriesObj);
+static int		TclArithSeriesObjRange(Tcl_Interp *interp,
+			    Tcl_Obj *arithSeriesObj, Tcl_Size fromIdx,
+			    Tcl_Size toIdx, Tcl_Obj **newObjPtr);
+static int		TclArithSeriesObjReverse(Tcl_Interp *interp,
+			    Tcl_Obj *arithSeriesObj, Tcl_Obj **newObjPtr);
+static int		TclArithSeriesGetElements(Tcl_Interp *interp,
+			    Tcl_Obj *objPtr, Tcl_Size *objcPtr,
+			    Tcl_Obj ***objvPtr);
+static void		DupArithSeriesInternalRep(Tcl_Obj *srcPtr,
+			    Tcl_Obj *copyPtr);
+static void		FreeArithSeriesInternalRep(Tcl_Obj *arithSeriesObjPtr);
+static void		UpdateStringOfArithSeries(Tcl_Obj *arithSeriesObjPtr);
+static int		SetArithSeriesFromAny(Tcl_Interp *interp,
+			    Tcl_Obj *objPtr);
+static int		ArithSeriesInOperation(Tcl_Interp *interp,
+			    Tcl_Obj *valueObj, Tcl_Obj *arithSeriesObj,
+			    int *boolResult);
+
+/* ------------------------ ArithSeries object type -------------------------- */
+
+static const Tcl_ObjType arithSeriesType = {
+    "arithseries",			/* name */
+    FreeArithSeriesInternalRep,		/* freeIntRepProc */
+    DupArithSeriesInternalRep,		/* dupIntRepProc */
+    UpdateStringOfArithSeries,		/* updateStringProc */
+    SetArithSeriesFromAny,		/* setFromAnyProc */
+    TCL_OBJTYPE_V2(
+    ArithSeriesObjLength,
+    TclArithSeriesObjIndex,
+    TclArithSeriesObjRange,
+    TclArithSeriesObjReverse,
+    TclArithSeriesGetElements,
+    NULL, // SetElement
+    NULL, // Replace
+    ArithSeriesInOperation) // "in" operator
+};
+
+/*
+ * Helper functions
+ *
+ * - power10 -- Fast version of pow(10, (int) n) for common cases.
+ * - ArithRound -- Round doubles to the number of significant fractional
+ *                 digits
+ * - ArithSeriesIndexDbl -- base list indexing operation for doubles
+ * - ArithSeriesIndexInt --   "    "      "        "      "  integers
+ * - ArithSeriesGetInternalRep -- Return the internal rep from a Tcl_Obj
+ * - Precision -- determine the number of factional digits for the given
+ *   double value
+ * - maxPrecision -- Using the values provide, determine the longest percision
+ *   in the arithSeries
+ */
+
+static inline double
+power10(
+    unsigned n)
+{
+    /* few "precomputed" powers (note, max double is mostly 1.7e+308) */
+    static const double powers[] = {
+	1, 10, 100, 1000, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9, 1e10,
+	1e11, 1e12, 1e13, 1e14, 1e15, 1e16, 1e17, 1e18, 1e19, 1e20,
+	1e21, 1e22, 1e23, 1e24, 1e25, 1e26, 1e27, 1e28, 1e29, 1e30,
+	1e31, 1e32, 1e33, 1e34, 1e35, 1e36, 1e37, 1e38, 1e39, 1e40,
+	1e41, 1e42, 1e43, 1e44, 1e45, 1e46, 1e47, 1e48, 1e49, 1e50
+    };
+
+    if (n < sizeof(powers) / sizeof(*powers)) {
+	return powers[n];
+    } else {
+	// Not an expected case. Doesn't need to be so fast
+	return pow(10, n);
+    }
+}
+
+static inline double
+ArithRound(
+    double d,
+    unsigned n)
+{
+    double scaleFactor;
+
+    if (!n) {
+	return d;
+    }
+    scaleFactor = power10(n);
+    return round(d * scaleFactor) / scaleFactor;
+}
+
+static inline double
+ArithSeriesEndDbl(
+    ArithSeriesDbl *dblRepPtr)
+{
+    double d;
+    if (!dblRepPtr->base.len) {
+	return dblRepPtr->start;
+    }
+    d = dblRepPtr->start + ((double)(dblRepPtr->base.len-1) * dblRepPtr->step);
+    return ArithRound(d, dblRepPtr->precision);
+}
+
+static inline Tcl_WideInt
+ArithSeriesEndInt(
+    ArithSeriesInt *intRepPtr)
+{
+    if (!intRepPtr->base.len) {
+	return intRepPtr->start;
+    }
+    return intRepPtr->start + ((intRepPtr->base.len-1) * intRepPtr->step);
+}
+
+static inline double
+ArithSeriesIndexDbl(
+    ArithSeries *arithSeriesRepPtr,
+    Tcl_WideInt index)
+{
+    ArithSeriesDbl *dblRepPtr = (ArithSeriesDbl *)arithSeriesRepPtr;
+    assert(arithSeriesRepPtr->isDouble);
+    double d = dblRepPtr->start;
+    if (index) {
+	d += ((double)index * dblRepPtr->step);
+    }
+
+    return ArithRound(d, dblRepPtr->precision);
+}
+
+static inline Tcl_WideInt
+ArithSeriesIndexInt(
+    ArithSeries *arithSeriesRepPtr,
+    Tcl_WideInt index)
+{
+    ArithSeriesInt *intRepPtr = (ArithSeriesInt *)arithSeriesRepPtr;
+    assert(!arithSeriesRepPtr->isDouble);
+    return intRepPtr->start + (index * intRepPtr->step);
+}
+
+static inline ArithSeries *
+ArithSeriesGetInternalRep(
+    Tcl_Obj *objPtr)
+{
+    const Tcl_ObjInternalRep *irPtr = TclFetchInternalRep(objPtr,
+	    &arithSeriesType);
+    return irPtr ? (ArithSeries *) irPtr->twoPtrValue.ptr1 : NULL;
+}
+
+/*
+ * Compute number of significant fractional digits
+ */
+static inline unsigned
+ObjPrecision(
+    Tcl_Obj *numObj)
+{
+    void *ptr;
+    int type;
+
+    if (TclHasInternalRep(numObj, &tclDoubleType) || (
+	    Tcl_GetNumberFromObj(NULL, numObj, &ptr, &type) == TCL_OK
+	    && type == TCL_NUMBER_DOUBLE)
+    ) { /* TCL_NUMBER_DOUBLE */
+	const char *str = TclGetString(numObj);
+
+	if (strchr(str, 'e') == NULL && strchr(str, 'E') == NULL) {
+	    str = strchr(str, '.');
+	    return (str ? (unsigned)strlen(str + 1) : 0);
+	}
+	/* don't calculate precision for e-notation */
+    }
+    /* no fraction for TCL_NUMBER_NAN, TCL_NUMBER_INT, TCL_NUMBER_BIG */
+    return 0;
+}
+
+/*
+ * Find longest number of digits after the decimal point.
+ */
+static inline unsigned
+maxObjPrecision(
+    Tcl_Obj *start,
+    Tcl_Obj *end,
+    Tcl_Obj *step)
+{
+    unsigned i, dp = 0;
+    if (step) {
+	dp = ObjPrecision(step);
+    }
+    if (start) {
+	i = ObjPrecision(start);
+	if (i > dp) {
+	    dp = i;
+	}
+    }
+    if (end) {
+	i = ObjPrecision(end);
+	if (i > dp) {
+	    dp = i;
+	}
+    }
+    return dp;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ArithSeriesLen --
+ *
+ *	Compute the length of the equivalent list where
+ *	every element is generated starting from *start*,
+ *	and adding *step* to generate every successive element
+ *	that's < *end* for positive steps, or > *end* for negative
+ *	steps.
+ *
+ * Results:
+ *	The length of the list generated by the given range,
+ *	that may be zero.
+ *	The function returns -1 if the list is of length infinite.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+static Tcl_WideInt
+ArithSeriesLenInt(
+    Tcl_WideInt start,
+    Tcl_WideInt end,
+    Tcl_WideInt step)
+{
+    Tcl_WideInt len;
+
+    if (step == 0) {
+	return 0;
+    }
+    len = (end - start) / step + 1;
+    if (len < 0) {
+	return 0;
+    }
+    return len;
+}
+
+static Tcl_WideInt
+ArithSeriesLenDbl(
+    double start,
+    double end,
+    double step,
+    unsigned precision)
+{
+    double scaleFactor;
+    volatile double len; /* use volatile for more deterministic cross-platform
+			  * FP arithmetics, (e. g. to avoid wrong optimization
+			  * and divergent results by different compilers/platforms
+			  * with and w/o FPU_INLINE_ASM, _CONTROLFP, etc) */
+
+    if (step == 0) {
+	return 0;
+    }
+    if (precision) {
+	scaleFactor = power10(precision);
+	start *= scaleFactor;
+	end *= scaleFactor;
+	step *= scaleFactor;
+    }
+    /* distance */
+    end -= start;
+    /*
+     * To improve numerical stability use wide arithmetic instead of IEEE-754
+     * when distance and step do not exceed wide-integers.
+     */
+    if (((double)WIDE_MIN <= end && end <= (double)WIDE_MAX) &&
+	    ((double)WIDE_MIN <= step && step <= (double)WIDE_MAX)) {
+	Tcl_WideInt iend = end < 0 ? end - 0.5 : end + 0.5;
+	Tcl_WideInt istep = step < 0 ? step - 0.5 : step + 0.5;
+	if (istep) { /* avoid div by zero, steps like 0.1, precision 0 */
+	    return (iend / istep) + 1;
+	}
+    }
+    /*
+     * Too large, so use double (note the result may be instable due
+     * to IEEE-754, so to be as precise as possible we'll use volatile len)
+     */
+    len = (end / step) + 1;
+    if (len >= (double)TCL_SIZE_MAX) {
+	return TCL_SIZE_MAX;
+    }
+    if (len < 0) {
+	return 0;
+    }
+    return (Tcl_WideInt)len;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * DupArithSeriesInternalRep --
+ *
+ *	Initialize the internal representation of a arithseries Tcl_Obj to a
+ *	copy of the internal representation of an existing arithseries object.
+ *	The copy does not share the cache of the elements.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	We set "copyPtr"s internal rep to a pointer to a
+ *	newly allocated ArithSeries structure.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+DupArithSeriesInternalRep(
+    Tcl_Obj *srcPtr,		/* Object with internal rep to copy. */
+    Tcl_Obj *copyPtr)		/* Object with internal rep to set. */
+{
+    ArithSeries *srcRepPtr = (ArithSeries *)
+	    srcPtr->internalRep.twoPtrValue.ptr1;
+
+    srcRepPtr->refCount++;
+    copyPtr->internalRep.twoPtrValue.ptr1 = srcRepPtr;
+    copyPtr->internalRep.twoPtrValue.ptr2 = NULL;
+    copyPtr->typePtr = &arithSeriesType;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * FreeArithSeriesInternalRep --
+ *
+ *	Free any allocated memory in the ArithSeries Rep
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *
+ *----------------------------------------------------------------------
+ */
+
+static inline void
+FreeElements(
+    ArithSeries *arithSeriesRepPtr)
+{
+    if (arithSeriesRepPtr->elements) {
+	Tcl_WideInt i, len = arithSeriesRepPtr->len;
+
+	for (i=0; i<len; i++) {
+	    Tcl_DecrRefCount(arithSeriesRepPtr->elements[i]);
+	}
+	Tcl_Free((void *)arithSeriesRepPtr->elements);
+	arithSeriesRepPtr->elements = NULL;
+    }
+}
+
+static void
+FreeArithSeriesInternalRep(
+    Tcl_Obj *arithSeriesObjPtr)
+{
+    ArithSeries *arithSeriesRepPtr = (ArithSeries *)
+	    arithSeriesObjPtr->internalRep.twoPtrValue.ptr1;
+
+    if (arithSeriesRepPtr && arithSeriesRepPtr->refCount-- <= 1) {
+	FreeElements(arithSeriesRepPtr);
+	Tcl_Free((void *)arithSeriesRepPtr);
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * NewArithSeriesInt --
+ *
+ *	Creates a new ArithSeries object. The returned object has
+ *	refcount = 0.
+ *
+ * Results:
+ *	A Tcl_Obj pointer to the created ArithSeries object.
+ *	A NULL pointer of the range is invalid.
+ *
+ * Side Effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+static Tcl_Obj *
+NewArithSeriesInt(
+    Tcl_WideInt start,
+    Tcl_WideInt step,
+    Tcl_WideInt len)
+{
+    Tcl_WideInt length;
+    Tcl_Obj *arithSeriesObj;
+    ArithSeriesInt *arithSeriesRepPtr;
+
+    length = len>=0 ? len : -1;
+    if (length < 0) {
+	length = -1;
+    }
+
+    TclNewObj(arithSeriesObj);
+
+    if (length <= 0) {
+	return arithSeriesObj;
+    }
+
+    arithSeriesRepPtr = (ArithSeriesInt *) Tcl_Alloc(sizeof(ArithSeriesInt));
+    arithSeriesRepPtr->base.len = length;
+    arithSeriesRepPtr->base.elements = NULL;
+    arithSeriesRepPtr->base.isDouble = 0;
+    arithSeriesRepPtr->base.refCount = 1;
+    arithSeriesRepPtr->start = start;
+    arithSeriesRepPtr->step = step;
+    arithSeriesObj->internalRep.twoPtrValue.ptr1 = arithSeriesRepPtr;
+    arithSeriesObj->internalRep.twoPtrValue.ptr2 = NULL;
+    arithSeriesObj->typePtr = &arithSeriesType;
+    if (length > 0) {
+	Tcl_InvalidateStringRep(arithSeriesObj);
+    }
+
+    return arithSeriesObj;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * NewArithSeriesDbl --
+ *
+ *	Creates a new ArithSeries object with doubles. The returned object has
+ *	refcount = 0.
+ *
+ * Results:
+ *	A Tcl_Obj pointer to the created ArithSeries object.
+ *	A NULL pointer of the range is invalid.
+ *
+ * Side Effects:
+ *	None.
+ *----------------------------------------------------------------------
+ */
+static Tcl_Obj *
+NewArithSeriesDbl(
+    double start,
+    double step,
+    Tcl_WideInt len,
+    unsigned precision)
+{
+    Tcl_WideInt length;
+    Tcl_Obj *arithSeriesObj;
+    ArithSeriesDbl *arithSeriesRepPtr;
+
+    length = len>=0 ? len : -1;
+    if (length < 0) {
+	length = -1;
+    }
+
+    TclNewObj(arithSeriesObj);
+
+    if (length <= 0) {
+	return arithSeriesObj;
+    }
+
+    arithSeriesRepPtr = (ArithSeriesDbl *) Tcl_Alloc(sizeof(ArithSeriesDbl));
+    arithSeriesRepPtr->base.len = length;
+    arithSeriesRepPtr->base.elements = NULL;
+    arithSeriesRepPtr->base.isDouble = 1;
+    arithSeriesRepPtr->base.refCount = 1;
+    arithSeriesRepPtr->start = start;
+    arithSeriesRepPtr->step = step;
+    arithSeriesRepPtr->precision = precision;
+    arithSeriesObj->internalRep.twoPtrValue.ptr1 = arithSeriesRepPtr;
+    arithSeriesObj->internalRep.twoPtrValue.ptr2 = NULL;
+    arithSeriesObj->typePtr = &arithSeriesType;
+
+    if (length > 0) {
+	Tcl_InvalidateStringRep(arithSeriesObj);
+    }
+
+    return arithSeriesObj;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * assignNumber --
+ *
+ *	Create the appropriate Tcl_Obj value for the given numeric values.
+ *      Used locally only for decoding [lseq] numeric arguments.
+ *	refcount = 0.
+ *
+ * Results:
+ *	A Tcl_Obj pointer.  No assignment on error.
+ *
+ * Side Effects:
+ *	None.
+ *----------------------------------------------------------------------
+ */
+static int
+assignNumber(
+    Tcl_Interp *interp,
+    int useDoubles,
+    Tcl_WideInt *intNumberPtr,
+    double *dblNumberPtr,
+    Tcl_Obj *numberObj)
+{
+    void *ptr;
+    int type;
+
+    if (Tcl_GetNumberFromObj(interp, numberObj, &ptr, &type) != TCL_OK) {
+	return TCL_ERROR;
+    }
+    if (type == TCL_NUMBER_BIG) {
+	/* bignum is not supported yet. */
+	Tcl_WideInt w;
+	(void)Tcl_GetWideIntFromObj(interp, numberObj, &w);
+	return TCL_ERROR;
+    }
+    if (useDoubles) {
+	if (type != TCL_NUMBER_INT) {
+	    double value = *(double *)ptr;
+	    *intNumberPtr = (Tcl_WideInt)value;
+	    *dblNumberPtr = value;
+	} else {
+	    Tcl_WideInt value = *(Tcl_WideInt *)ptr;
+	    *intNumberPtr = value;
+	    *dblNumberPtr = (double)value;
+	}
+    } else {
+	if (type == TCL_NUMBER_INT) {
+	    Tcl_WideInt value = *(Tcl_WideInt *)ptr;
+	    *intNumberPtr = value;
+	    *dblNumberPtr = (double)value;
+	} else {
+	    double value = *(double *)ptr;
+	    *intNumberPtr = (Tcl_WideInt)value;
+	    *dblNumberPtr = value;
+	}
+    }
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclNewArithSeriesObj --
+ *
+ *	Creates a new ArithSeries object. Some arguments may be NULL and will
+ *	be computed based on the other given arguments.
+ *      refcount = 0.
+ *
+ * Results:
+ *	A Tcl_Obj pointer to the created ArithSeries object.
+ *	NULL if the range is invalid.
+ *
+ * Side Effects:
+ *	None.
+ *----------------------------------------------------------------------
+ */
+Tcl_Obj *
+TclNewArithSeriesObj(
+    Tcl_Interp *interp,		/* For error reporting */
+    int useDoubles,		/* Flag indicates values start,
+				 * end, step, are treated as doubles */
+    Tcl_Obj *startObj,		/* Starting value */
+    Tcl_Obj *endObj,		/* Ending limit */
+    Tcl_Obj *stepObj,		/* increment value */
+    Tcl_Obj *lenObj)		/* Number of elements */
+{
+    double dstart, dend, dstep = 1.0;
+    Tcl_WideInt start, end, step = 1;
+    Tcl_WideInt len = -1;
+    Tcl_Obj *objPtr;
+    unsigned precision = (unsigned)-1; /* unknown precision */
+
+    if (startObj) {
+	if (assignNumber(interp, useDoubles, &start, &dstart, startObj) != TCL_OK) {
+	    return NULL;
+	}
+    } else {
+	start = 0;
+	dstart = 0.0;
+    }
+    if (stepObj) {
+	if (assignNumber(interp, useDoubles, &step, &dstep, stepObj) != TCL_OK) {
+	    return NULL;
+	}
+	if (!useDoubles ? !step : !dstep) {
+	    TclNewObj(objPtr);
+	    return objPtr;
+	}
+    }
+    if (endObj) {
+	if (assignNumber(interp, useDoubles, &end, &dend, endObj) != TCL_OK) {
+	    return NULL;
+	}
+    }
+    if (lenObj) {
+	if (Tcl_GetWideIntFromObj(interp, lenObj, &len) != TCL_OK) {
+	    return NULL;
+	}
+    }
+
+    if (endObj) {
+	if (!stepObj) {
+	    if (useDoubles) {
+		if (dstart > dend) {
+		    dstep = -1.0;
+		    step = -1;
+		}
+	    } else {
+		if (start > end) {
+		    step = -1;
+		    dstep = -1.0;
+		}
+	    }
+	}
+	assert(dstep!=0);
+	if (!lenObj) {
+	    if (useDoubles) {
+		if (isinf(dstart) || isinf(dend)) {
+		    goto exceeded;
+		}
+		if (isnan(dstart) || isnan(dend)) {
+		    const char *description = "non-numeric floating-point value";
+		    char tmp[TCL_DOUBLE_SPACE + 2];
+
+		    tmp[0] = '\0';
+		    Tcl_PrintDouble(NULL, isnan(dstart)?dstart:dend, tmp);
+		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			"cannot use %s \"%s\" to estimate length of arith-series",
+			description, tmp));
+		    Tcl_SetErrorCode(interp, "ARITH", "DOMAIN", description,
+			(char *)NULL);
+		    return NULL;
+		}
+		precision = maxObjPrecision(startObj, endObj, stepObj);
+		len = ArithSeriesLenDbl(dstart, dend, dstep, precision);
+	    } else {
+		len = ArithSeriesLenInt(start, end, step);
+	    }
+	}
+    } else {
+	if (useDoubles) {
+	    // Compute precision based on given command argument values
+	    precision = maxObjPrecision(startObj, NULL, stepObj);
+
+	    dend = dstart + (dstep * (double)(len-1));
+	    // Make computed end value match argument(s) precision
+	    dend = ArithRound(dend, precision);
+	    end = dend;
+	} else {
+	    end = start + (step * (len - 1));
+	    dend = (double)end;
+	}
+    }
+
+    /*
+     * todo: check whether the boundary must be rather LIST_MAX, to be more
+     * similar to plain lists, otherwise it'd generare an error or panic later
+     * (0x0ffffffffffffffa instead of 0x7fffffffffffffff by 64bit)
+     */
+    if (len > TCL_SIZE_MAX) {
+      exceeded:
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"max length of a Tcl list exceeded", TCL_AUTO_LENGTH));
+	Tcl_SetErrorCode(interp, "TCL", "MEMORY", (char *)NULL);
+	return NULL;
+    }
+
+    if (useDoubles) {
+	/* ensure we'll not get NaN somewhere in the arith-series,
+	 * so simply check the end of it and behave like [expr {Inf - Inf}] */
+	double d = dstart + (double)(len - 1) * dstep;
+	if (isnan(d)) {
+	    const char *s = "domain error: argument not in valid range";
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(s, -1));
+	    Tcl_SetErrorCode(interp, "ARITH", "DOMAIN", s, (char *)NULL);
+	    return NULL;
+	}
+
+	if (precision == (unsigned)-1) {
+	    precision = maxObjPrecision(startObj, endObj, stepObj);
+	}
+
+	objPtr = NewArithSeriesDbl(dstart, dstep, len, precision);
+    } else {
+	objPtr = NewArithSeriesInt(start, step, len);
+    }
+
+    return objPtr;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclArithSeriesObjIndex --
+ *
+ *	Returns the element with the specified index in the list
+ *	represented by the specified Arithmetic Sequence object.
+ *	If the index is out of range, TCL_ERROR is returned,
+ *	otherwise TCL_OK is returned and the integer value of the
+ *	element is stored in *element.
+ *
+ * Results:
+ *	TCL_OK on success.
+ *
+ * Side Effects:
+ *	On success, the integer pointed by *element is modified.
+ *	An empty string ("") is assigned if index is out-of-bounds.
+ *
+ *----------------------------------------------------------------------
+ */
+int
+TclArithSeriesObjIndex(
+    TCL_UNUSED(Tcl_Interp *),
+    Tcl_Obj *arithSeriesObj,	/* List obj */
+    Tcl_Size index,		/* index to element of interest */
+    Tcl_Obj **elemObj)		/* Return value */
+{
+    ArithSeries *arithSeriesRepPtr = ArithSeriesGetInternalRep(arithSeriesObj);
+
+    if (index < 0 || arithSeriesRepPtr->len <= index) {
+	*elemObj = NULL;
+    } else {
+	/* List[i] = Start + (Step * index) */
+	if (arithSeriesRepPtr->isDouble) {
+	    *elemObj = Tcl_NewDoubleObj(ArithSeriesIndexDbl(arithSeriesRepPtr, index));
+	} else {
+	    *elemObj = Tcl_NewWideIntObj(ArithSeriesIndexInt(arithSeriesRepPtr, index));
+	}
+    }
+
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ArithSeriesObjLength
+ *
+ *	Returns the length of the arithmetic series.
+ *
+ * Results:
+ *	The length of the series as Tcl_WideInt.
+ *
+ * Side Effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+Tcl_Size
+ArithSeriesObjLength(
+    Tcl_Obj *arithSeriesObj)
+{
+    ArithSeries *arithSeriesRepPtr = (ArithSeries *)
+	    arithSeriesObj->internalRep.twoPtrValue.ptr1;
+    return arithSeriesRepPtr->len;
+}
+
+/*
+ * SetArithSeriesFromAny --
+ *
+ *	The Arithmetic Series object is just an way to optimize
+ *	Lists space complexity, so no one should try to convert
+ *	a string to an Arithmetic Series object.
+ *
+ *	This function is here just to populate the Type structure.
+ *
+ * Results:
+ *	The result is always TCL_ERROR. But see Side Effects.
+ *
+ * Side effects:
+ *	Tcl Panic if called.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+SetArithSeriesFromAny(
+    TCL_UNUSED(Tcl_Interp *),		/* Used for error reporting if not NULL. */
+    TCL_UNUSED(Tcl_Obj *))		/* The object to convert. */
+{
+    Tcl_Panic("SetArithSeriesFromAny: should never be called");
+    return TCL_ERROR;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclArithSeriesObjRange --
+ *
+ *	Makes a slice of an ArithSeries value.
+ *      *arithSeriesObj must be known to be a valid list.
+ *
+ * Results:
+ *	Returns a pointer to the sliced series.
+ *      This may be a new object or the same object if not shared.
+ *
+ * Side effects:
+ *	?The possible conversion of the object referenced by listPtr?
+ *	?to a list object.?
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclArithSeriesObjRange(
+    Tcl_Interp *interp,		/* For error message(s) */
+    Tcl_Obj *arithSeriesObj,	/* List object to take a range from. */
+    Tcl_Size fromIdx,		/* Index of first element to include. */
+    Tcl_Size toIdx,		/* Index of last element to include. */
+    Tcl_Obj **newObjPtr)	/* return value */
+{
+    ArithSeries *arithSeriesRepPtr;
+    Tcl_WideInt len;
+
+    (void)interp; /* silence compiler */
+
+    arithSeriesRepPtr = ArithSeriesGetInternalRep(arithSeriesObj);
+
+    if (fromIdx == TCL_INDEX_NONE) {
+	fromIdx = 0;
+    }
+
+    if (toIdx >= arithSeriesRepPtr->len) {
+	toIdx = arithSeriesRepPtr->len-1;
+    }
+
+    if (fromIdx > toIdx || fromIdx >= arithSeriesRepPtr->len) {
+	TclNewObj(*newObjPtr);
+	return TCL_OK;
+    }
+
+    if (fromIdx < 0) {
+	fromIdx = 0;
+    }
+    if (toIdx < 0) {
+	toIdx = 0;
+    }
+
+    len = toIdx - fromIdx + 1;
+
+    if (arithSeriesRepPtr->isDouble) {
+	ArithSeriesDbl *dblRepPtr = (ArithSeriesDbl *)arithSeriesRepPtr;
+	double dstart = ArithSeriesIndexDbl(arithSeriesRepPtr, fromIdx);
+
+	if (Tcl_IsShared(arithSeriesObj) || ((arithSeriesRepPtr->refCount > 1))) {
+	    /* as new object */
+	    *newObjPtr = NewArithSeriesDbl(dstart, dblRepPtr->step, len,
+		dblRepPtr->precision);
+	} else {
+	    /* in-place is possible */
+	    *newObjPtr = arithSeriesObj;
+	    /*
+	     * Even if nothing below causes any changes, we still want the
+	     * string-canonizing effect of [lrange 0 end].
+	     */
+	    TclInvalidateStringRep(arithSeriesObj);
+
+	    dblRepPtr->start = dstart;
+	    /* step and precision remain the same */
+	    dblRepPtr->base.len = len;
+	    FreeElements(arithSeriesRepPtr);
+	}
+    } else {
+	ArithSeriesInt *intRepPtr = (ArithSeriesInt *) arithSeriesRepPtr;
+	Tcl_WideInt start = ArithSeriesIndexInt(arithSeriesRepPtr, fromIdx);
+
+	if (Tcl_IsShared(arithSeriesObj) || ((arithSeriesRepPtr->refCount > 1))) {
+	    /* as new object */
+	    *newObjPtr = NewArithSeriesInt(start, intRepPtr->step, len);
+	} else {
+	    /* in-place is possible. */
+	    *newObjPtr = arithSeriesObj;
+	    /*
+	     * Even if nothing below causes any changes, we still want the
+	     * string-canonizing effect of [lrange 0 end].
+	     */
+	    TclInvalidateStringRep(arithSeriesObj);
+
+	    intRepPtr->start = start;
+	    /* step remains the same */
+	    intRepPtr->base.len = len;
+	    FreeElements(arithSeriesRepPtr);
+	}
+    }
+
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclArithSeriesGetElements --
+ *
+ *	This function returns an (objc,objv) array of the elements in a list
+ *	object.
+ *
+ * Results:
+ *	The return value is normally TCL_OK; in this case *objcPtr is set to
+ *	the count of list elements and *objvPtr is set to a pointer to an
+ *	array of (*objcPtr) pointers to each list element. If listPtr does not
+ *	refer to an Abstract List object and the object can not be converted
+ *	to one, TCL_ERROR is returned and an error message will be left in the
+ *	interpreter's result if interp is not NULL.
+ *
+ *	The objects referenced by the returned array should be treated as
+ *	readonly and their ref counts are _not_ incremented; the caller must
+ *	do that if it holds on to a reference. Furthermore, the pointer and
+ *	length returned by this function may change as soon as any function is
+ *	called on the list object; be careful about retaining the pointer in a
+ *	local data structure.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclArithSeriesGetElements(
+    Tcl_Interp *interp,		/* Used to report errors if not NULL. */
+    Tcl_Obj *objPtr,		/* ArithSeries object for which an element
+				 * array is to be returned. */
+    Tcl_Size *objcPtr,		/* Where to store the count of objects
+				 * referenced by objv. */
+    Tcl_Obj ***objvPtr)		/* Where to store the pointer to an array of
+				 * pointers to the list's objects. */
+{
+    if (TclHasInternalRep(objPtr, &arithSeriesType)) {
+	ArithSeries *arithSeriesRepPtr = ArithSeriesGetInternalRep(objPtr);
+	Tcl_Obj **objv;
+	Tcl_Size objc = arithSeriesRepPtr->len;
+
+	if (objc > 0) {
+	    if (arithSeriesRepPtr->elements) {
+		/* If this exists, it has already been populated */
+		objv = arithSeriesRepPtr->elements;
+	    } else {
+		/* Construct the elements array */
+		objv = (Tcl_Obj **) Tcl_Alloc(sizeof(Tcl_Obj*) * objc);
+		if (objv == NULL) {
+		    if (interp) {
+			Tcl_SetObjResult(interp, Tcl_NewStringObj(
+				"max length of a Tcl list exceeded",
+				TCL_AUTO_LENGTH));
+			Tcl_SetErrorCode(interp, "TCL", "MEMORY", (char *)NULL);
+		    }
+		    return TCL_ERROR;
+		}
+		arithSeriesRepPtr->elements = objv;
+
+		Tcl_Size i;
+		for (i = 0; i < objc; i++) {
+		    int status = TclArithSeriesObjIndex(interp, objPtr, i, &objv[i]);
+
+		    if (status) {
+			return TCL_ERROR;
+		    }
+		    Tcl_IncrRefCount(objv[i]);
+		}
+	    }
+	} else {
+	    objv = NULL;
+	}
+	*objvPtr = objv;
+	*objcPtr = objc;
+    } else {
+	if (interp != NULL) {
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "value is not an arithseries", TCL_AUTO_LENGTH));
+	    Tcl_SetErrorCode(interp, "TCL", "VALUE", "UNKNOWN", (char *)NULL);
+	}
+	return TCL_ERROR;
+    }
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclArithSeriesObjReverse --
+ *
+ *	Reverse the order of the ArithSeries value. The arithSeriesObj is
+ *	assumed to be a valid ArithSeries. The new Obj has the Start and End
+ *	values appropriately swapped and the Step value sign is changed.
+ *
+ * Results:
+ *      The result will be an ArithSeries in the reverse order.
+ *
+ * Side effects:
+ *      The ogiginal obj will be modified and returned if it is not Shared.
+ *
+ *----------------------------------------------------------------------
+ */
+int
+TclArithSeriesObjReverse(
+    Tcl_Interp *interp,		/* For error message(s) */
+    Tcl_Obj *arithSeriesObj,	/* List object to reverse. */
+    Tcl_Obj **newObjPtr)
+{
+    ArithSeries *arithSeriesRepPtr;
+    Tcl_Obj *resultObj;
+
+    (void)interp;
+
+    assert(newObjPtr != NULL);
+
+    arithSeriesRepPtr = ArithSeriesGetInternalRep(arithSeriesObj);
+
+    if (Tcl_IsShared(arithSeriesObj) || (arithSeriesRepPtr->refCount > 1)) {
+	if (arithSeriesRepPtr->isDouble) {
+	    ArithSeriesDbl *dblRepPtr = (ArithSeriesDbl *)arithSeriesRepPtr;
+	    resultObj = NewArithSeriesDbl(ArithSeriesEndDbl(dblRepPtr),
+		-dblRepPtr->step, arithSeriesRepPtr->len, dblRepPtr->precision);
+	} else {
+	    ArithSeriesInt *intRepPtr = (ArithSeriesInt *)arithSeriesRepPtr;
+	    resultObj = NewArithSeriesInt(ArithSeriesEndInt(intRepPtr),
+		-intRepPtr->step, arithSeriesRepPtr->len);
+	}
+    } else {
+	/*
+	 * In-place is possible.
+	 */
+
+	TclInvalidateStringRep(arithSeriesObj);
+
+	if (arithSeriesRepPtr->isDouble) {
+	    ArithSeriesDbl *dblRepPtr = (ArithSeriesDbl *)arithSeriesRepPtr;
+
+	    dblRepPtr->start = ArithSeriesEndDbl(dblRepPtr);
+	    dblRepPtr->step = -dblRepPtr->step;
+	    /* precision remains the same */
+	} else {
+	    ArithSeriesInt *intRepPtr = (ArithSeriesInt *)arithSeriesRepPtr;
+
+	    intRepPtr->start = ArithSeriesEndInt(intRepPtr);
+	    intRepPtr->step = -intRepPtr->step;
+	}
+	FreeElements(arithSeriesRepPtr);
+	resultObj = arithSeriesObj;
+    }
+
+    *newObjPtr = resultObj;
+
+    return resultObj ? TCL_OK : TCL_ERROR;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * UpdateStringOfArithSeries --
+ *
+ *	Update the string representation for an arithseries object.
+ *	Note: This procedure does not invalidate an existing old string rep
+ *	so storage will be lost if this has not already been done.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	The object's string is set to a valid string that results from
+ *	the list-to-string conversion. This string will be empty if the
+ *	list has no elements. The list internal representation
+ *	should not be NULL and we assume it is not NULL.
+ *
+ * Notes:
+ *	At the cost of overallocation it's possible to estimate
+ *	the length of the string representation and make this procedure
+ *	much faster. Because the programmer shouldn't expect the
+ *	string conversion of a big arithmetic sequence to be fast
+ *	this version takes more care of space than time.
+ *
+ *----------------------------------------------------------------------
+ */
+static void
+UpdateStringOfArithSeries(
+    Tcl_Obj *arithSeriesObjPtr)
+{
+    ArithSeries *arithSeriesRepPtr = (ArithSeries *)
+	    arithSeriesObjPtr->internalRep.twoPtrValue.ptr1;
+    char *p;
+    Tcl_Size i, bytlen = 0;
+
+    if (!arithSeriesRepPtr->len) {
+	TclInitEmptyStringRep(arithSeriesObjPtr);
+	return;
+    }
+
+    /*
+     * Pass 1: estimate space.
+     */
+    if (!arithSeriesRepPtr->isDouble) {
+	for (i = 0; i < arithSeriesRepPtr->len; i++) {
+	    double d = (double)ArithSeriesIndexInt(arithSeriesRepPtr, i);
+	    Tcl_Size slen = d>0 ? log10(d)+1 : d<0 ? log10(-d)+2 : 1;
+
+	    bytlen += slen;
+	}
+    } else {
+	char tmp[TCL_DOUBLE_SPACE + 2];
+	for (i = 0; i < arithSeriesRepPtr->len; i++) {
+	    double d = ArithSeriesIndexDbl(arithSeriesRepPtr, i);
+
+	    tmp[0] = '\0';
+	    Tcl_PrintDouble(NULL,d,tmp);
+	    bytlen += strlen(tmp);
+	    if (bytlen > TCL_SIZE_MAX) {
+		/* overflow, todo: check we could use some representation instead of the panic
+		 * to signal it is too large for string representation, because too heavy */
+		Tcl_Panic("UpdateStringOfArithSeries: too large to represent");
+	    }
+	}
+    }
+    bytlen += arithSeriesRepPtr->len; // Space for each separator
+
+    /*
+     * Pass 2: generate the string repr.
+     */
+
+    p = Tcl_InitStringRep(arithSeriesObjPtr, NULL, bytlen);
+    if (!arithSeriesRepPtr->isDouble) {
+	for (i = 0; i < arithSeriesRepPtr->len; i++) {
+	    Tcl_WideInt d = ArithSeriesIndexInt(arithSeriesRepPtr, i);
+	    p += TclFormatInt(p, d);
+	    assert(p - arithSeriesObjPtr->bytes <= bytlen);
+	    *p++ = ' ';
+	}
+    } else {
+	for (i = 0; i < arithSeriesRepPtr->len; i++) {
+	    double d = ArithSeriesIndexDbl(arithSeriesRepPtr, i);
+
+	    *p = '\0';
+	    Tcl_PrintDouble(NULL,d,p);
+	    p += strlen(p);
+	    assert(p - arithSeriesObjPtr->bytes <= bytlen);
+	    *p++ = ' ';
+	}
+    }
+    *(--p) = '\0';
+    arithSeriesObjPtr->length = p - arithSeriesObjPtr->bytes;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ArithSeriesInOperator --
+ *
+ *	Evaluate the "in" operation for expr
+ *
+ *      This can be done more efficiently in the Arith Series relative to
+ *      doing a linear search as implemented in expr.
+ *
+ * Results:
+ *	Boolean true or false (1/0)
+ *
+ * Side effects:
+ *      None
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+ArithSeriesInOperation(
+    Tcl_Interp *interp,
+    Tcl_Obj *valueObj,
+    Tcl_Obj *arithSeriesObjPtr,
+    int *boolResult)
+{
+    ArithSeries *repPtr = (ArithSeries *)
+	    arithSeriesObjPtr->internalRep.twoPtrValue.ptr1;
+    int status;
+    Tcl_Size index, incr, elen, vlen;
+
+    if (repPtr->isDouble) {
+	ArithSeriesDbl *dblRepPtr = (ArithSeriesDbl *) repPtr;
+	double y;
+	int test = 0;
+
+	incr = 0; // Check index+incr where incr is 0 and 1
+	status = Tcl_GetDoubleFromObj(interp, valueObj, &y);
+	if (status != TCL_OK) {
+	    test = 0;
+	} else {
+	    const char *vstr = TclGetStringFromObj(valueObj, &vlen);
+	    index = (y - dblRepPtr->start) / dblRepPtr->step;
+	    while (incr<2) {
+		Tcl_Obj *elemObj;
+
+		elen = 0;
+		TclArithSeriesObjIndex(interp, arithSeriesObjPtr, (index+incr), &elemObj);
+
+		const char *estr = elemObj ? TclGetStringFromObj(elemObj, &elen) : "";
+
+		/* "in" operation defined as a string compare */
+		test = (elen == vlen) ? (memcmp(estr, vstr, elen) == 0) : 0;
+		Tcl_BounceRefCount(elemObj);
+		/* Stop if we have a match */
+		if (test) {
+		    break;
+		}
+		incr++;
+	    }
+	}
+	if (boolResult) {
+	    *boolResult = test;
+	}
+    } else {
+	ArithSeriesInt *intRepPtr = (ArithSeriesInt *) repPtr;
+	Tcl_WideInt y;
+
+	status = Tcl_GetWideIntFromObj(NULL, valueObj, &y);
+	if (status != TCL_OK) {
+	    if (boolResult) {
+		*boolResult = 0;
+	    }
+	} else {
+	    Tcl_Obj *elemObj;
+
+	    elen = 0;
+	    index = (y - intRepPtr->start) / intRepPtr->step;
+	    TclArithSeriesObjIndex(interp, arithSeriesObjPtr, index, &elemObj);
+
+	    char const *vstr = TclGetStringFromObj(valueObj, &vlen);
+	    char const *estr = elemObj ? TclGetStringFromObj(elemObj, &elen) : "";
+
+	    if (boolResult) {
+		*boolResult = (elen == vlen) ? (memcmp(estr, vstr, elen) == 0) : 0;
+	    }
+	    Tcl_BounceRefCount(elemObj);
+	}
+    }
+    return TCL_OK;
+}
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * End:
+ */
diff --git a/generic/tclAssembly.c b/generic/tclAssembly.c
new file mode 100644
index 0000000..6d436ef
--- /dev/null
+++ b/generic/tclAssembly.c
@@ -0,0 +1,4352 @@
+/*
+ * tclAssembly.c --
+ *
+ *	Assembler for Tcl bytecodes.
+ *
+ * This file contains the procedures that convert Tcl Assembly Language (TAL)
+ * to a sequence of bytecode instructions for the Tcl execution engine.
+ *
+ * Copyright © 2010 Ozgur Dogan Ugurlu.
+ * Copyright © 2010 Kevin B. Kenny.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+/*-
+ *- THINGS TO DO:
+ *- More instructions:
+ *-   done - alternate exit point (affects stack and exception range checking)
+ *-   break and continue - if exception ranges can be sorted out.
+ *-   foreach_start4, foreach_step4
+ *-   returnImm, returnStk
+ *-   expandStart, expandStkTop, invokeExpanded, expandDrop
+ *-   dictFirst, dictNext, dictDone
+ *-   dictUpdateStart, dictUpdateEnd
+ *-   jumpTable testing
+ *-   syntax (?)
+ *-   returnCodeBranch
+ *-   tclooNext, tclooNextClass
+ */
+
+#include "tclInt.h"
+#include "tclCompile.h"
+#include "tclOOInt.h"
+#include <assert.h>
+
+/*
+ * Structure that represents a range of instructions in the bytecode.
+ */
+
+typedef struct CodeRange {
+    int startOffset;		/* Start offset in the bytecode array */
+    int endOffset;		/* End offset in the bytecode array */
+} CodeRange;
+
+/*
+ * State identified for a basic block's catch context.
+ */
+
+typedef enum BasicBlockCatchState {
+    BBCS_UNKNOWN = 0,		/* Catch context has not yet been identified */
+    BBCS_NONE,			/* Block is outside of any catch */
+    BBCS_INCATCH,		/* Block is within a catch context */
+    BBCS_CAUGHT			/* Block is within a catch context and
+				 * may be executed after an exception fires */
+} BasicBlockCatchState;
+
+/*
+ * Structure that defines a basic block - a linear sequence of bytecode
+ * instructions with no jumps in or out (including not changing the
+ * state of any exception range).
+ */
+
+typedef struct BasicBlock {
+    int originalStartOffset;	/* Instruction offset before JUMP1s were
+				 * substituted with JUMP4's */
+    int startOffset;		/* Instruction offset of the start of the
+				 * block */
+    int startLine;		/* Line number in the input script of the
+				 * instruction at the start of the block */
+    int jumpOffset;		/* Bytecode offset of the 'jump' instruction
+				 * that ends the block, or -1 if there is no
+				 * jump. */
+    int jumpLine;		/* Line number in the input script of the
+				 * 'jump' instruction that ends the block, or
+				 * -1 if there is no jump */
+    struct BasicBlock* prevPtr;	/* Immediate predecessor of this block */
+    struct BasicBlock* predecessor;
+				/* Predecessor of this block in the spanning
+				 * tree */
+    struct BasicBlock* successor1;
+				/* BasicBlock structure of the following
+				 * block: NULL at the end of the bytecode
+				 * sequence. */
+    Tcl_Obj* jumpTarget;	/* Jump target label if the jump target is
+				 * unresolved */
+    int initialStackDepth;	/* Absolute stack depth on entry */
+    int minStackDepth;		/* Low-water relative stack depth */
+    int maxStackDepth;		/* High-water relative stack depth */
+    int finalStackDepth;	/* Relative stack depth on exit */
+    enum BasicBlockCatchState catchState;
+				/* State of the block for 'catch' analysis */
+    int catchDepth;		/* Number of nested catches in which the basic
+				 * block appears */
+    struct BasicBlock* enclosingCatch;
+				/* BasicBlock structure of the last startCatch
+				 * executed on a path to this block, or NULL
+				 * if there is no enclosing catch */
+    int foreignExceptionBase;	/* Base index of foreign exceptions */
+    int foreignExceptionCount;	/* Count of foreign exceptions */
+    ExceptionRange* foreignExceptions;
+				/* ExceptionRange structures for exception
+				 * ranges belonging to embedded scripts and
+				 * expressions in this block */
+    JumptableInfo* jtPtr;	/* Jump table at the end of this basic block */
+    int flags;			/* Boolean flags */
+} BasicBlock;
+
+/*
+ * Flags that pertain to a basic block.
+ */
+
+enum BasicBlockFlags {
+    BB_VISITED = (1 << 0),	/* Block has been visited in the current
+				 * traversal */
+    BB_FALLTHRU = (1 << 1),	/* Control may pass from this block to a
+				 * successor */
+    BB_JUMP1 = (1 << 2),	/* Basic block ends with a 1-byte-offset jump
+				 * and may need expansion */
+    BB_JUMPTABLE = (1 << 3),	/* Basic block ends with a jump table */
+    BB_BEGINCATCH = (1 << 4),	/* Block ends with a 'beginCatch' instruction,
+				 * marking it as the start of a 'catch'
+				 * sequence. The 'jumpTarget' is the exception
+				 * exit from the catch block. */
+    BB_ENDCATCH = (1 << 5)	/* Block ends with an 'endCatch' instruction,
+				 * unwinding the catch from the exception
+				 * stack. */
+};
+
+/*
+ * Source instruction type recognized by the assembler.
+ */
+
+typedef enum {
+    ASSEM_1BYTE,		/* Fixed arity, 1-byte instruction */
+    ASSEM_BEGIN_CATCH,		/* Begin catch: one 4-byte jump offset to be
+				 * converted to appropriate exception
+				 * ranges */
+    ASSEM_BOOL,			/* One Boolean operand */
+    ASSEM_BOOL_LVT4,		/* One Boolean, one 4-byte LVT ref. */
+    ASSEM_CLOCK_READ,		/* 1-byte unsigned-integer case number, in the
+				 * range 0-3 */
+    ASSEM_CONCAT1,		/* 1-byte unsigned-integer operand count, must
+				 * be strictly positive, consumes N, produces
+				 * 1 */
+    ASSEM_DICT_GET,		/* 'dict get' and related - consumes N+1
+				 * operands, produces 1, N > 0 */
+    ASSEM_DICT_SET,		/* specifies key count and LVT index, consumes
+				 * N+1 operands, produces 1, N > 0 */
+    ASSEM_DICT_UNSET,		/* specifies key count and LVT index, consumes
+				 * N operands, produces 1, N > 0 */
+    ASSEM_END_CATCH,		/* End catch. No args. Exception range popped
+				 * from stack and stack pointer restored. */
+    ASSEM_EVAL,			/* 'eval' - evaluate a constant script (by
+				 * compiling it in line with the assembly
+				 * code! I love Tcl!) */
+    ASSEM_INDEX,		/* 4 byte operand, integer or end-integer */
+    ASSEM_INVOKE,		/* 1- or 4-byte operand count, must be
+				 * strictly positive, consumes N, produces
+				 * 1. */
+    ASSEM_JUMP,			/* Jump instructions */
+    ASSEM_JUMP4,		/* Jump instructions forcing a 4-byte offset */
+    ASSEM_JUMPTABLE,		/* Jumptable (switch -exact) */
+    ASSEM_LABEL,		/* The assembly directive that defines a
+				 * label */
+    ASSEM_LINDEX_MULTI,		/* 4-byte operand count, must be strictly
+				 * positive, consumes N, produces 1 */
+    ASSEM_LIST,			/* 4-byte operand count, must be nonnegative,
+				 * consumses N, produces 1 */
+    ASSEM_LSET_FLAT,		/* 4-byte operand count, must be >= 3,
+				 * consumes N, produces 1 */
+    ASSEM_LVT,			/* One operand that references a local
+				 * variable */
+    ASSEM_LVT1,			/* One 1-byte operand that references a local
+				 * variable */
+    ASSEM_LVT1_SINT1,		/* One 1-byte operand that references a local
+				 * variable, one signed-integer 1-byte
+				 * operand */
+    ASSEM_LVT4,			/* One 4-byte operand that references a local
+				 * variable */
+    ASSEM_OVER,			/* OVER: 4-byte operand count, consumes N+1,
+				 * produces N+2 */
+    ASSEM_PUSH,			/* one literal operand */
+    ASSEM_REGEXP,		/* One Boolean operand, but weird mapping to
+				 * call flags */
+    ASSEM_REVERSE,		/* REVERSE: 4-byte operand count, consumes N,
+				 * produces N */
+    ASSEM_SINT1,		/* One 1-byte signed-integer operand
+				 * (INCR_STK_IMM) */
+    ASSEM_SINT4_LVT4,		/* Signed 4-byte integer operand followed by
+				 * LVT entry.  Fixed arity */
+    ASSEM_DICT_GET_DEF		/* 'dict getwithdefault' - consumes N+2
+				 * operands, produces 1, N > 0 */
+} TalInstType;
+
+/*
+ * Description of an instruction recognized by the assembler.
+ */
+
+typedef struct TalInstDesc {
+    const char *name;		/* Name of instruction. */
+    TalInstType instType;	/* The type of instruction */
+    int tclInstCode;		/* Instruction code. For instructions having
+				 * 1- and 4-byte variables, tclInstCode is
+				 * ((1byte)<<8) || (4byte) */
+    int operandsConsumed;	/* Number of operands consumed by the
+				 * operation, or INT_MIN if the operation is
+				 * variadic */
+    int operandsProduced;	/* Number of operands produced by the
+				 * operation. If negative, the operation has a
+				 * net stack effect of -1-operandsProduced */
+} TalInstDesc;
+
+/*
+ * Structure that holds the state of the assembler while generating code.
+ */
+
+typedef struct AssemblyEnv {
+    CompileEnv* envPtr;		/* Compilation environment being used for code
+				 * generation */
+    Tcl_Parse* parsePtr;	/* Parse of the current line of source */
+    Tcl_HashTable labelHash;	/* Hash table whose keys are labels and whose
+				 * values are 'label' objects storing the code
+				 * offsets of the labels. */
+    Tcl_Size cmdLine;		/* Current line number within the assembly
+				 * code */
+    Tcl_Size* clNext;		/* Invisible continuation line for
+				 * [info frame] */
+    BasicBlock* head_bb;	/* First basic block in the code */
+    BasicBlock* curr_bb;	/* Current basic block */
+    int maxDepth;		/* Maximum stack depth encountered */
+    int curCatchDepth;		/* Current depth of catches */
+    int maxCatchDepth;		/* Maximum depth of catches encountered */
+    int flags;			/* Compilation flags (TCL_EVAL_DIRECT) */
+} AssemblyEnv;
+
+/*
+ * Static functions defined in this file.
+ */
+
+static void		AddBasicBlockRangeToErrorInfo(AssemblyEnv*,
+			    BasicBlock*);
+static BasicBlock *	AllocBB(AssemblyEnv*);
+static int		AssembleOneLine(AssemblyEnv* envPtr);
+static void		BBAdjustStackDepth(BasicBlock* bbPtr, int consumed,
+			    int produced);
+static void		BBUpdateStackReqs(BasicBlock* bbPtr, int tblIdx,
+			    int count);
+static void		BBEmitInstInt1(AssemblyEnv* assemEnvPtr, int tblIdx,
+			    int opnd, int count);
+static void		BBEmitInstInt4(AssemblyEnv* assemEnvPtr, int tblIdx,
+			    int opnd, int count);
+static void		BBEmitInst1or4(AssemblyEnv* assemEnvPtr, int tblIdx,
+			    int param, int count);
+static void		BBEmitOpcode(AssemblyEnv* assemEnvPtr, int tblIdx,
+			    int count);
+static int		BuildExceptionRanges(AssemblyEnv* assemEnvPtr);
+static int		CalculateJumpRelocations(AssemblyEnv*, int*);
+static int		CheckForUnclosedCatches(AssemblyEnv*);
+static int		CheckForThrowInWrongContext(AssemblyEnv*);
+static int		CheckNonThrowingBlock(AssemblyEnv*, BasicBlock*);
+static int		BytecodeMightThrow(unsigned char);
+static int		CheckJumpTableLabels(AssemblyEnv*, BasicBlock*);
+static int		CheckNamespaceQualifiers(Tcl_Interp*, const char*,
+			    int);
+static int		CheckNonNegative(Tcl_Interp*, int);
+static int		CheckOneByte(Tcl_Interp*, int);
+static int		CheckSignedOneByte(Tcl_Interp*, int);
+static int		CheckStack(AssemblyEnv*);
+static int		CheckStrictlyPositive(Tcl_Interp*, int);
+static ByteCode *	CompileAssembleObj(Tcl_Interp *interp,
+			    Tcl_Obj *objPtr);
+static void		CompileEmbeddedScript(AssemblyEnv*, Tcl_Token*,
+			    const TalInstDesc*);
+static int		DefineLabel(AssemblyEnv* envPtr, const char* label);
+static void		DeleteMirrorJumpTable(JumptableInfo* jtPtr);
+static void		FillInJumpOffsets(AssemblyEnv*);
+static int		CreateMirrorJumpTable(AssemblyEnv* assemEnvPtr,
+			    Tcl_Obj* jumpTable);
+static size_t	FindLocalVar(AssemblyEnv* envPtr,
+			    Tcl_Token** tokenPtrPtr);
+static int		FinishAssembly(AssemblyEnv*);
+static void		FreeAssemblyEnv(AssemblyEnv*);
+static int		GetBooleanOperand(AssemblyEnv*, Tcl_Token**, int*);
+static int		GetListIndexOperand(AssemblyEnv*, Tcl_Token**, int*);
+static int		GetIntegerOperand(AssemblyEnv*, Tcl_Token**, int*);
+static int		GetNextOperand(AssemblyEnv*, Tcl_Token**, Tcl_Obj**);
+static void		LookForFreshCatches(BasicBlock*, BasicBlock**);
+static void		MoveCodeForJumps(AssemblyEnv*, int);
+static void		MoveExceptionRangesToBasicBlock(AssemblyEnv*, int);
+static AssemblyEnv*	NewAssemblyEnv(CompileEnv*, int);
+static int		ProcessCatches(AssemblyEnv*);
+static int		ProcessCatchesInBasicBlock(AssemblyEnv*, BasicBlock*,
+			    BasicBlock*, enum BasicBlockCatchState, int);
+static void		ResetVisitedBasicBlocks(AssemblyEnv*);
+static void		ResolveJumpTableTargets(AssemblyEnv*, BasicBlock*);
+static void		ReportUndefinedLabel(AssemblyEnv*, BasicBlock*,
+			    Tcl_Obj*);
+static void		RestoreEmbeddedExceptionRanges(AssemblyEnv*);
+static int		StackCheckBasicBlock(AssemblyEnv*, BasicBlock *,
+			    BasicBlock *, int);
+static BasicBlock*	StartBasicBlock(AssemblyEnv*, int fallthrough,
+			    Tcl_Obj* jumpLabel);
+/* static int		AdvanceIp(const unsigned char *pc); */
+static int		StackCheckBasicBlock(AssemblyEnv*, BasicBlock *,
+			    BasicBlock *, int);
+static int		StackCheckExit(AssemblyEnv*);
+static void		StackFreshCatches(AssemblyEnv*, BasicBlock*, int,
+			    BasicBlock**, int*);
+static void		SyncStackDepth(AssemblyEnv*);
+static int		TclAssembleCode(CompileEnv* envPtr, const char* code,
+			    int codeLen, int flags);
+static void		UnstackExpiredCatches(CompileEnv*, BasicBlock*, int,
+			    BasicBlock**, int*);
+
+/*
+ * Tcl_ObjType that describes bytecode emitted by the assembler.
+ */
+
+static Tcl_FreeInternalRepProc	FreeAssembleCodeInternalRep;
+static Tcl_DupInternalRepProc	DupAssembleCodeInternalRep;
+
+static const Tcl_ObjType assembleCodeType = {
+    "assemblecode",
+    FreeAssembleCodeInternalRep, /* freeIntRepProc */
+    DupAssembleCodeInternalRep,	 /* dupIntRepProc */
+    NULL,			 /* updateStringProc */
+    NULL,			 /* setFromAnyProc */
+    TCL_OBJTYPE_V0
+};
+
+/*
+ * Source instructions recognized in the Tcl Assembly Language (TAL)
+ */
+
+static const TalInstDesc TalInstructionTable[] = {
+    /* PUSH must be first, see the code near the end of TclAssembleCode */
+    {"push",		ASSEM_PUSH,	(INST_PUSH1<<8
+					 | INST_PUSH4),		0,	1},
+
+    {"add",		ASSEM_1BYTE,	INST_ADD,		2,	1},
+    {"append",		ASSEM_LVT,	(INST_APPEND_SCALAR1<<8
+					 | INST_APPEND_SCALAR4),1,	1},
+    {"appendArray",	ASSEM_LVT,	(INST_APPEND_ARRAY1<<8
+					 | INST_APPEND_ARRAY4),	2,	1},
+    {"appendArrayStk",	ASSEM_1BYTE,	INST_APPEND_ARRAY_STK,	3,	1},
+    {"appendStk",	ASSEM_1BYTE,	INST_APPEND_STK,	2,	1},
+    {"arrayExistsImm",	ASSEM_LVT4,	INST_ARRAY_EXISTS_IMM,	0,	1},
+    {"arrayExistsStk",	ASSEM_1BYTE,	INST_ARRAY_EXISTS_STK,	1,	1},
+    {"arrayMakeImm",	ASSEM_LVT4,	INST_ARRAY_MAKE_IMM,	0,	0},
+    {"arrayMakeStk",	ASSEM_1BYTE,	INST_ARRAY_MAKE_STK,	1,	0},
+    {"beginCatch",	ASSEM_BEGIN_CATCH,
+					INST_BEGIN_CATCH4,	0,	0},
+    {"bitand",		ASSEM_1BYTE,	INST_BITAND,		2,	1},
+    {"bitnot",		ASSEM_1BYTE,	INST_BITNOT,		1,	1},
+    {"bitor",		ASSEM_1BYTE,	INST_BITOR,		2,	1},
+    {"bitxor",		ASSEM_1BYTE,	INST_BITXOR,		2,	1},
+    {"clockRead",	ASSEM_CLOCK_READ, INST_CLOCK_READ,	0,	1},
+    {"concat",		ASSEM_CONCAT1,	INST_STR_CONCAT1,	INT_MIN,1},
+    {"concatStk",	ASSEM_LIST,	INST_CONCAT_STK,	INT_MIN,1},
+    {"coroName",	ASSEM_1BYTE,	INST_COROUTINE_NAME,	0,	1},
+    {"currentNamespace",ASSEM_1BYTE,	INST_NS_CURRENT,	0,	1},
+    {"dictAppend",	ASSEM_LVT4,	INST_DICT_APPEND,	2,	1},
+    {"dictExists",	ASSEM_DICT_GET, INST_DICT_EXISTS,	INT_MIN,1},
+    {"dictExpand",	ASSEM_1BYTE,	INST_DICT_EXPAND,	3,	1},
+    {"dictGet",		ASSEM_DICT_GET, INST_DICT_GET,		INT_MIN,1},
+    {"dictGetDef",	ASSEM_DICT_GET_DEF, INST_DICT_GET_DEF,	INT_MIN,1},
+    {"dictIncrImm",	ASSEM_SINT4_LVT4,
+					INST_DICT_INCR_IMM,	1,	1},
+    {"dictLappend",	ASSEM_LVT4,	INST_DICT_LAPPEND,	2,	1},
+    {"dictRecombineStk",ASSEM_1BYTE,	INST_DICT_RECOMBINE_STK,3,	0},
+    {"dictRecombineImm",ASSEM_LVT4,	INST_DICT_RECOMBINE_IMM,2,	0},
+    {"dictSet",		ASSEM_DICT_SET, INST_DICT_SET,		INT_MIN,1},
+    {"dictUnset",	ASSEM_DICT_UNSET,
+					INST_DICT_UNSET,	INT_MIN,1},
+    {"div",		ASSEM_1BYTE,	INST_DIV,		2,	1},
+    {"dup",		ASSEM_1BYTE,	INST_DUP,		1,	2},
+    {"endCatch",	ASSEM_END_CATCH,INST_END_CATCH,		0,	0},
+    {"eq",		ASSEM_1BYTE,	INST_EQ,		2,	1},
+    {"eval",		ASSEM_EVAL,	INST_EVAL_STK,		1,	1},
+    {"evalStk",		ASSEM_1BYTE,	INST_EVAL_STK,		1,	1},
+    {"exist",		ASSEM_LVT4,	INST_EXIST_SCALAR,	0,	1},
+    {"existArray",	ASSEM_LVT4,	INST_EXIST_ARRAY,	1,	1},
+    {"existArrayStk",	ASSEM_1BYTE,	INST_EXIST_ARRAY_STK,	2,	1},
+    {"existStk",	ASSEM_1BYTE,	INST_EXIST_STK,		1,	1},
+    {"expon",		ASSEM_1BYTE,	INST_EXPON,		2,	1},
+    {"expr",		ASSEM_EVAL,	INST_EXPR_STK,		1,	1},
+    {"exprStk",		ASSEM_1BYTE,	INST_EXPR_STK,		1,	1},
+    {"ge",		ASSEM_1BYTE,	INST_GE,		2,	1},
+    {"gt",		ASSEM_1BYTE,	INST_GT,		2,	1},
+    {"incr",		ASSEM_LVT1,	INST_INCR_SCALAR1,	1,	1},
+    {"incrArray",	ASSEM_LVT1,	INST_INCR_ARRAY1,	2,	1},
+    {"incrArrayImm",	ASSEM_LVT1_SINT1,
+					INST_INCR_ARRAY1_IMM,	1,	1},
+    {"incrArrayStk",	ASSEM_1BYTE,	INST_INCR_ARRAY_STK,	3,	1},
+    {"incrArrayStkImm", ASSEM_SINT1,	INST_INCR_ARRAY_STK_IMM,2,	1},
+    {"incrImm",		ASSEM_LVT1_SINT1,
+					INST_INCR_SCALAR1_IMM,	0,	1},
+    {"incrStk",		ASSEM_1BYTE,	INST_INCR_STK,		2,	1},
+    {"incrStkImm",	ASSEM_SINT1,	INST_INCR_STK_IMM,	1,	1},
+    {"infoLevelArgs",	ASSEM_1BYTE,	INST_INFO_LEVEL_ARGS,	1,	1},
+    {"infoLevelNumber",	ASSEM_1BYTE,	INST_INFO_LEVEL_NUM,	0,	1},
+    {"invokeStk",	ASSEM_INVOKE,	(INST_INVOKE_STK1 << 8
+					 | INST_INVOKE_STK4),	INT_MIN,1},
+    {"jump",		ASSEM_JUMP,	INST_JUMP1,		0,	0},
+    {"jump4",		ASSEM_JUMP4,	INST_JUMP4,		0,	0},
+    {"jumpFalse",	ASSEM_JUMP,	INST_JUMP_FALSE1,	1,	0},
+    {"jumpFalse4",	ASSEM_JUMP4,	INST_JUMP_FALSE4,	1,	0},
+    {"jumpTable",	ASSEM_JUMPTABLE,INST_JUMP_TABLE,	1,	0},
+    {"jumpTrue",	ASSEM_JUMP,	INST_JUMP_TRUE1,	1,	0},
+    {"jumpTrue4",	ASSEM_JUMP4,	INST_JUMP_TRUE4,	1,	0},
+    {"label",		ASSEM_LABEL,	0,			0,	0},
+    {"lappend",		ASSEM_LVT,	(INST_LAPPEND_SCALAR1<<8
+					 | INST_LAPPEND_SCALAR4),
+								1,	1},
+    {"lappendArray",	ASSEM_LVT,	(INST_LAPPEND_ARRAY1<<8
+					 | INST_LAPPEND_ARRAY4),2,	1},
+    {"lappendArrayStk", ASSEM_1BYTE,	INST_LAPPEND_ARRAY_STK,	3,	1},
+    {"lappendList",	ASSEM_LVT4,	INST_LAPPEND_LIST,	1,	1},
+    {"lappendListArray",ASSEM_LVT4,	INST_LAPPEND_LIST_ARRAY,2,	1},
+    {"lappendListArrayStk", ASSEM_1BYTE,INST_LAPPEND_LIST_ARRAY_STK, 3,	1},
+    {"lappendListStk",	ASSEM_1BYTE,	INST_LAPPEND_LIST_STK,	2,	1},
+    {"lappendStk",	ASSEM_1BYTE,	INST_LAPPEND_STK,	2,	1},
+    {"le",		ASSEM_1BYTE,	INST_LE,		2,	1},
+    {"lindexMulti",	ASSEM_LINDEX_MULTI,
+					INST_LIST_INDEX_MULTI,	INT_MIN,1},
+    {"list",		ASSEM_LIST,	INST_LIST,		INT_MIN,1},
+    {"listConcat",	ASSEM_1BYTE,	INST_LIST_CONCAT,	2,	1},
+    {"listIn",		ASSEM_1BYTE,	INST_LIST_IN,		2,	1},
+    {"listIndex",	ASSEM_1BYTE,	INST_LIST_INDEX,	2,	1},
+    {"listIndexImm",	ASSEM_INDEX,	INST_LIST_INDEX_IMM,	1,	1},
+    {"listLength",	ASSEM_1BYTE,	INST_LIST_LENGTH,	1,	1},
+    {"listNotIn",	ASSEM_1BYTE,	INST_LIST_NOT_IN,	2,	1},
+    {"load",		ASSEM_LVT,	(INST_LOAD_SCALAR1 << 8
+					 | INST_LOAD_SCALAR4),	0,	1},
+    {"loadArray",	ASSEM_LVT,	(INST_LOAD_ARRAY1<<8
+					 | INST_LOAD_ARRAY4),	1,	1},
+    {"loadArrayStk",	ASSEM_1BYTE,	INST_LOAD_ARRAY_STK,	2,	1},
+    {"loadStk",		ASSEM_1BYTE,	INST_LOAD_STK,		1,	1},
+    {"lsetFlat",	ASSEM_LSET_FLAT,INST_LSET_FLAT,		INT_MIN,1},
+    {"lsetList",	ASSEM_1BYTE,	INST_LSET_LIST,		3,	1},
+    {"lshift",		ASSEM_1BYTE,	INST_LSHIFT,		2,	1},
+    {"lt",		ASSEM_1BYTE,	INST_LT,		2,	1},
+    {"mod",		ASSEM_1BYTE,	INST_MOD,		2,	1},
+    {"mult",		ASSEM_1BYTE,	INST_MULT,		2,	1},
+    {"neq",		ASSEM_1BYTE,	INST_NEQ,		2,	1},
+    {"nop",		ASSEM_1BYTE,	INST_NOP,		0,	0},
+    {"not",		ASSEM_1BYTE,	INST_LNOT,		1,	1},
+    {"nsupvar",		ASSEM_LVT4,	INST_NSUPVAR,		2,	1},
+    {"numericType",	ASSEM_1BYTE,	INST_NUM_TYPE,		1,	1},
+    {"originCmd",	ASSEM_1BYTE,	INST_ORIGIN_COMMAND,	1,	1},
+    {"over",		ASSEM_OVER,	INST_OVER,		INT_MIN,-1-1},
+    {"pop",		ASSEM_1BYTE,	INST_POP,		1,	0},
+    {"pushReturnCode",	ASSEM_1BYTE,	INST_PUSH_RETURN_CODE,	0,	1},
+    {"pushReturnOpts",	ASSEM_1BYTE,	INST_PUSH_RETURN_OPTIONS,
+								0,	1},
+    {"pushResult",	ASSEM_1BYTE,	INST_PUSH_RESULT,	0,	1},
+    {"regexp",		ASSEM_REGEXP,	INST_REGEXP,		2,	1},
+    {"resolveCmd",	ASSEM_1BYTE,	INST_RESOLVE_COMMAND,	1,	1},
+    {"reverse",		ASSEM_REVERSE,	INST_REVERSE,		INT_MIN,-1-0},
+    {"rshift",		ASSEM_1BYTE,	INST_RSHIFT,		2,	1},
+    {"store",		ASSEM_LVT,	(INST_STORE_SCALAR1<<8
+					 | INST_STORE_SCALAR4),	1,	1},
+    {"storeArray",	ASSEM_LVT,	(INST_STORE_ARRAY1<<8
+					 | INST_STORE_ARRAY4),	2,	1},
+    {"storeArrayStk",	ASSEM_1BYTE,	INST_STORE_ARRAY_STK,	3,	1},
+    {"storeStk",	ASSEM_1BYTE,	INST_STORE_STK,		2,	1},
+    {"strcaseLower",	ASSEM_1BYTE,	INST_STR_LOWER,		1,	1},
+    {"strcaseTitle",	ASSEM_1BYTE,	INST_STR_TITLE,		1,	1},
+    {"strcaseUpper",	ASSEM_1BYTE,	INST_STR_UPPER,		1,	1},
+    {"strcmp",		ASSEM_1BYTE,	INST_STR_CMP,		2,	1},
+    {"strcat",		ASSEM_CONCAT1,	INST_STR_CONCAT1,	INT_MIN,1},
+    {"streq",		ASSEM_1BYTE,	INST_STR_EQ,		2,	1},
+    {"strfind",		ASSEM_1BYTE,	INST_STR_FIND,		2,	1},
+    {"strge",		ASSEM_1BYTE,	INST_STR_GE,		2,	1},
+    {"strgt",		ASSEM_1BYTE,	INST_STR_GT,		2,	1},
+    {"strindex",	ASSEM_1BYTE,	INST_STR_INDEX,		2,	1},
+    {"strle",		ASSEM_1BYTE,	INST_STR_LE,		2,	1},
+    {"strlen",		ASSEM_1BYTE,	INST_STR_LEN,		1,	1},
+    {"strlt",		ASSEM_1BYTE,	INST_STR_LT,		2,	1},
+    {"strmap",		ASSEM_1BYTE,	INST_STR_MAP,		3,	1},
+    {"strmatch",	ASSEM_BOOL,	INST_STR_MATCH,		2,	1},
+    {"strneq",		ASSEM_1BYTE,	INST_STR_NEQ,		2,	1},
+    {"strrange",	ASSEM_1BYTE,	INST_STR_RANGE,		3,	1},
+    {"strreplace",	ASSEM_1BYTE,	INST_STR_REPLACE,	4,	1},
+    {"strrfind",	ASSEM_1BYTE,	INST_STR_FIND_LAST,	2,	1},
+    {"strtrim",		ASSEM_1BYTE,	INST_STR_TRIM,		2,	1},
+    {"strtrimLeft",	ASSEM_1BYTE,	INST_STR_TRIM_LEFT,	2,	1},
+    {"strtrimRight",	ASSEM_1BYTE,	INST_STR_TRIM_RIGHT,	2,	1},
+    {"sub",		ASSEM_1BYTE,	INST_SUB,		2,	1},
+    {"tclooClass",	ASSEM_1BYTE,	INST_TCLOO_CLASS,	1,	1},
+    {"tclooIsObject",	ASSEM_1BYTE,	INST_TCLOO_IS_OBJECT,	1,	1},
+    {"tclooNamespace",	ASSEM_1BYTE,	INST_TCLOO_NS,		1,	1},
+    {"tclooSelf",	ASSEM_1BYTE,	INST_TCLOO_SELF,	0,	1},
+    {"tryCvtToBoolean",	ASSEM_1BYTE,	INST_TRY_CVT_TO_BOOLEAN,1,	2},
+    {"tryCvtToNumeric",	ASSEM_1BYTE,	INST_TRY_CVT_TO_NUMERIC,1,	1},
+    {"uminus",		ASSEM_1BYTE,	INST_UMINUS,		1,	1},
+    {"unset",		ASSEM_BOOL_LVT4,INST_UNSET_SCALAR,	0,	0},
+    {"unsetArray",	ASSEM_BOOL_LVT4,INST_UNSET_ARRAY,	1,	0},
+    {"unsetArrayStk",	ASSEM_BOOL,	INST_UNSET_ARRAY_STK,	2,	0},
+    {"unsetStk",	ASSEM_BOOL,	INST_UNSET_STK,		1,	0},
+    {"uplus",		ASSEM_1BYTE,	INST_UPLUS,		1,	1},
+    {"upvar",		ASSEM_LVT4,	INST_UPVAR,		2,	1},
+    {"variable",	ASSEM_LVT4,	INST_VARIABLE,		1,	0},
+    {"verifyDict",	ASSEM_1BYTE,	INST_DICT_VERIFY,	1,	0},
+    {"yield",		ASSEM_1BYTE,	INST_YIELD,		1,	1},
+    {NULL,		ASSEM_1BYTE,		0,			0,	0}
+};
+
+/*
+ * List of instructions that cannot throw an exception under any
+ * circumstances.  These instructions are the ones that are permissible after
+ * an exception is caught but before the corresponding exception range is
+ * popped from the stack.
+ * The instructions must be in ascending order by numeric operation code.
+ */
+
+static const unsigned char NonThrowingByteCodes[] = {
+    INST_PUSH1, INST_PUSH4, INST_POP, INST_DUP,			/* 1-4 */
+    INST_JUMP1, INST_JUMP4,					/* 34-35 */
+    INST_END_CATCH, INST_PUSH_RESULT, INST_PUSH_RETURN_CODE,	/* 70-72 */
+    INST_STR_EQ, INST_STR_NEQ, INST_STR_CMP, INST_STR_LEN,	/* 73-76 */
+    INST_LIST,							/* 79 */
+    INST_OVER,							/* 95 */
+    INST_PUSH_RETURN_OPTIONS,					/* 108 */
+    INST_REVERSE,						/* 126 */
+    INST_NOP,							/* 132 */
+    INST_STR_MAP,						/* 143 */
+    INST_STR_FIND,						/* 144 */
+    INST_COROUTINE_NAME,					/* 149 */
+    INST_NS_CURRENT,						/* 151 */
+    INST_INFO_LEVEL_NUM,					/* 152 */
+    INST_RESOLVE_COMMAND,					/* 154 */
+    INST_STR_TRIM, INST_STR_TRIM_LEFT, INST_STR_TRIM_RIGHT,	/* 166-168 */
+    INST_CONCAT_STK,						/* 169 */
+    INST_STR_UPPER, INST_STR_LOWER, INST_STR_TITLE,		/* 170-172 */
+    INST_NUM_TYPE,						/* 180 */
+    INST_STR_LT, INST_STR_GT, INST_STR_LE, INST_STR_GE		/* 191-194 */
+};
+
+/*
+ * Helper macros.
+ */
+
+#if defined(TCL_DEBUG_ASSEMBLY) && defined(__GNUC__) && __GNUC__ > 2
+#define DEBUG_PRINT(...)	fprintf(stderr, ##__VA_ARGS__);fflush(stderr)
+#elif defined(__GNUC__) && __GNUC__ > 2
+#define DEBUG_PRINT(...)	/* nothing */
+#else
+#define DEBUG_PRINT		/* nothing */
+#endif
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * BBAdjustStackDepth --
+ *
+ *	When an opcode is emitted, adjusts the stack information in the basic
+ *	block to reflect the number of operands produced and consumed.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Updates minimum, maximum and final stack requirements in the basic
+ *	block.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+BBAdjustStackDepth(
+    BasicBlock *bbPtr,		/* Structure describing the basic block */
+    int consumed,		/* Count of operands consumed by the
+				 * operation */
+    int produced)		/* Count of operands produced by the
+				 * operation */
+{
+    int depth = bbPtr->finalStackDepth;
+
+    depth -= consumed;
+    if (depth < bbPtr->minStackDepth) {
+	bbPtr->minStackDepth = depth;
+    }
+    depth += produced;
+    if (depth > bbPtr->maxStackDepth) {
+	bbPtr->maxStackDepth = depth;
+    }
+    bbPtr->finalStackDepth = depth;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * BBUpdateStackReqs --
+ *
+ *	Updates the stack requirements of a basic block, given the opcode
+ *	being emitted and an operand count.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Updates min, max and final stack requirements in the basic block.
+ *
+ * Notes:
+ *	This function must not be called for instructions such as REVERSE and
+ *	OVER that are variadic but do not consume all their operands. Instead,
+ *	BBAdjustStackDepth should be called directly.
+ *
+ *	count should be provided only for variadic operations. For operations
+ *	with known arity, count should be 0.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+BBUpdateStackReqs(
+    BasicBlock* bbPtr,		/* Structure describing the basic block */
+    int tblIdx,			/* Index in TalInstructionTable of the
+				 * operation being assembled */
+    int count)			/* Count of operands for variadic insts */
+{
+    int consumed = TalInstructionTable[tblIdx].operandsConsumed;
+    int produced = TalInstructionTable[tblIdx].operandsProduced;
+
+    if (consumed == INT_MIN) {
+	/*
+	 * The instruction is variadic; it consumes 'count' operands, or
+	 * 'count+1' for ASSEM_DICT_GET_DEF.
+	 */
+
+	consumed = count;
+	if (TalInstructionTable[tblIdx].instType == ASSEM_DICT_GET_DEF) {
+	    consumed++;
+	}
+    }
+    if (produced < 0) {
+	/*
+	 * The instruction leaves some of its variadic operands on the stack,
+	 * with net stack effect of '-1-produced'
+	 */
+
+	produced = consumed - produced - 1;
+    }
+    BBAdjustStackDepth(bbPtr, consumed, produced);
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * BBEmitOpcode, BBEmitInstInt1, BBEmitInstInt4 --
+ *
+ *	Emit the opcode part of an instruction, or the entirety of an
+ *	instruction with a 1- or 4-byte operand, and adjust stack
+ *	requirements.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Stores instruction and operand in the operand stream, and adjusts the
+ *	stack.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+BBEmitOpcode(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    int tblIdx,			/* Table index in TalInstructionTable of op */
+    int count)			/* Operand count for variadic ops */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    BasicBlock* bbPtr = assemEnvPtr->curr_bb;
+				/* Current basic block */
+    int op = TalInstructionTable[tblIdx].tclInstCode & 0xFF;
+
+    /*
+     * If this is the first instruction in a basic block, record its line
+     * number.
+     */
+
+    if (bbPtr->startOffset == envPtr->codeNext - envPtr->codeStart) {
+	bbPtr->startLine = assemEnvPtr->cmdLine;
+    }
+
+    TclEmitInt1(op, envPtr);
+    TclUpdateAtCmdStart(op, envPtr);
+    BBUpdateStackReqs(bbPtr, tblIdx, count);
+}
+
+static void
+BBEmitInstInt1(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    int tblIdx,			/* Index in TalInstructionTable of op */
+    int opnd,			/* 1-byte operand */
+    int count)			/* Operand count for variadic ops */
+{
+    BBEmitOpcode(assemEnvPtr, tblIdx, count);
+    TclEmitInt1(opnd, assemEnvPtr->envPtr);
+}
+
+static void
+BBEmitInstInt4(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    int tblIdx,			/* Index in TalInstructionTable of op */
+    int opnd,			/* 4-byte operand */
+    int count)			/* Operand count for variadic ops */
+{
+    BBEmitOpcode(assemEnvPtr, tblIdx, count);
+    TclEmitInt4(opnd, assemEnvPtr->envPtr);
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * BBEmitInst1or4 --
+ *
+ *	Emits a 1- or 4-byte operation according to the magnitude of the
+ *	operand.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+BBEmitInst1or4(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    int tblIdx,			/* Index in TalInstructionTable of op */
+    int param,			/* Variable-length parameter */
+    int count)			/* Arity if variadic */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    BasicBlock* bbPtr = assemEnvPtr->curr_bb;
+				/* Current basic block */
+    int op = TalInstructionTable[tblIdx].tclInstCode;
+
+    if (param <= 0xFF) {
+	op >>= 8;
+    } else {
+	op &= 0xFF;
+    }
+    TclEmitInt1(op, envPtr);
+    if (param <= 0xFF) {
+	TclEmitInt1(param, envPtr);
+    } else {
+	TclEmitInt4(param, envPtr);
+    }
+    TclUpdateAtCmdStart(op, envPtr);
+    BBUpdateStackReqs(bbPtr, tblIdx, count);
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * Tcl_AssembleObjCmd, TclNRAssembleObjCmd --
+ *
+ *	Direct evaluation path for tcl::unsupported::assemble
+ *
+ * Results:
+ *	Returns a standard Tcl result.
+ *
+ * Side effects:
+ *	Assembles the code in objv[1], and executes it, so side effects
+ *	include whatever the code does.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+int
+Tcl_AssembleObjCmd(
+    void *clientData,		/* clientData */
+    Tcl_Interp *interp,		/* Current interpreter. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Argument objects. */
+{
+    /*
+     * Boilerplate - make sure that there is an NRE trampoline on the C stack
+     * because there needs to be one in place to execute bytecode.
+     */
+
+    return Tcl_NRCallObjProc(interp, TclNRAssembleObjCmd, clientData, objc, objv);
+}
+
+int
+TclNRAssembleObjCmd(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,		/* Current interpreter. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Argument objects. */
+{
+    ByteCode *codePtr;		/* Pointer to the bytecode to execute */
+    Tcl_Obj* backtrace;		/* Object where extra error information is
+				 * constructed. */
+
+    if (objc != 2) {
+	Tcl_WrongNumArgs(interp, 1, objv, "bytecodeList");
+	return TCL_ERROR;
+    }
+
+    /*
+     * Assemble the source to bytecode.
+     */
+
+    codePtr = CompileAssembleObj(interp, objv[1]);
+
+    /*
+     * On failure, report error line.
+     */
+
+    if (codePtr == NULL) {
+	Tcl_AddErrorInfo(interp, "\n    (\"");
+	Tcl_AppendObjToErrorInfo(interp, objv[0]);
+	Tcl_AddErrorInfo(interp, "\" body, line ");
+	TclNewIntObj(backtrace, Tcl_GetErrorLine(interp));
+	Tcl_AppendObjToErrorInfo(interp, backtrace);
+	Tcl_AddErrorInfo(interp, ")");
+	return TCL_ERROR;
+    }
+
+    /*
+     * Use NRE to evaluate the bytecode from the trampoline.
+     */
+
+    return TclNRExecuteByteCode(interp, codePtr);
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * CompileAssembleObj --
+ *
+ *	Sets up and assembles Tcl bytecode for the direct-execution path in
+ *	the Tcl bytecode assembler.
+ *
+ * Results:
+ *	Returns a pointer to the assembled code. Returns NULL if the assembly
+ *	fails for any reason, with an appropriate error message in the
+ *	interpreter.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static ByteCode *
+CompileAssembleObj(
+    Tcl_Interp *interp,		/* Tcl interpreter */
+    Tcl_Obj *objPtr)		/* Source code to assemble */
+{
+    Interp *iPtr = (Interp *) interp;
+				/* Internals of the interpreter */
+    CompileEnv compEnv;		/* Compilation environment structure */
+    ByteCode *codePtr = NULL;
+				/* Bytecode resulting from the assembly */
+    Namespace* namespacePtr;	/* Namespace in which variable and command
+				 * names in the bytecode resolve */
+    int status;			/* Status return from Tcl_AssembleCode */
+    const char* source;		/* String representation of the source code */
+    Tcl_Size sourceLen;		/* Length of the source code in bytes */
+
+    /*
+     * Get the expression ByteCode from the object. If it exists, make sure it
+     * is valid in the current context.
+     */
+
+    ByteCodeGetInternalRep(objPtr, &assembleCodeType, codePtr);
+
+    if (codePtr) {
+	namespacePtr = iPtr->varFramePtr->nsPtr;
+	if (((Interp *) *codePtr->interpHandle == iPtr)
+		&& (codePtr->compileEpoch == iPtr->compileEpoch)
+		&& (codePtr->nsPtr == namespacePtr)
+		&& (codePtr->nsEpoch == namespacePtr->resolverEpoch)
+		&& (codePtr->localCachePtr
+			== iPtr->varFramePtr->localCachePtr)) {
+	    return codePtr;
+	}
+
+	/*
+	 * Not valid, so free it and regenerate.
+	 */
+
+	Tcl_StoreInternalRep(objPtr, &assembleCodeType, NULL);
+    }
+
+    /*
+     * Set up the compilation environment, and assemble the code.
+     */
+
+    source = TclGetStringFromObj(objPtr, &sourceLen);
+    TclInitCompileEnv(interp, &compEnv, source, sourceLen, NULL, 0);
+    status = TclAssembleCode(&compEnv, source, sourceLen, TCL_EVAL_DIRECT);
+    if (status != TCL_OK) {
+	/*
+	 * Assembly failed. Clean up and report the error.
+	 */
+	TclFreeCompileEnv(&compEnv);
+	return NULL;
+    }
+
+    /*
+     * Add a "done" instruction as the last instruction and change the object
+     * into a ByteCode object. Ownership of the literal objects and aux data
+     * items is given to the ByteCode object.
+     */
+
+    TclEmitOpcode(INST_DONE, &compEnv);
+    codePtr = TclInitByteCodeObj(objPtr, &assembleCodeType, &compEnv);
+    TclFreeCompileEnv(&compEnv);
+
+    /*
+     * Record the local variable context to which the bytecode pertains
+     */
+
+    if (iPtr->varFramePtr->localCachePtr) {
+	codePtr->localCachePtr = iPtr->varFramePtr->localCachePtr;
+	codePtr->localCachePtr->refCount++;
+    }
+
+    /*
+     * Report on what the assembler did.
+     */
+
+    TclDebugPrintByteCodeObj(objPtr);
+
+    return codePtr;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * TclCompileAssembleCmd --
+ *
+ *	Compilation procedure for the '::tcl::unsupported::assemble' command.
+ *
+ * Results:
+ *	Returns a standard Tcl result.
+ *
+ * Side effects:
+ *	Puts the result of assembling the code into the bytecode stream in
+ *	'compileEnv'.
+ *
+ * This procedure makes sure that the command has a single arg, which is
+ * constant. If that condition is met, the procedure calls TclAssembleCode to
+ * produce bytecode for the given assembly code, and returns any error
+ * resulting from the assembly.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+int
+TclCompileAssembleCmd(
+    Tcl_Interp *interp,		/* Used for error reporting. */
+    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
+				 * created by Tcl_ParseCommand. */
+    TCL_UNUSED(Command *),
+    CompileEnv *envPtr)		/* Holds resulting instructions. */
+{
+    Tcl_Token *tokenPtr;	/* Token in the input script */
+
+    size_t numCommands = envPtr->numCommands;
+    int offset = envPtr->codeNext - envPtr->codeStart;
+    size_t depth = envPtr->currStackDepth;
+    /*
+     * Make sure that the command has a single arg that is a simple word.
+     */
+
+    if (parsePtr->numWords != 2) {
+	return TCL_ERROR;
+    }
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Compile the code and convert any error from the compilation into
+     * bytecode reporting the error;
+     */
+
+    if (TCL_ERROR == TclAssembleCode(envPtr, tokenPtr[1].start,
+	    tokenPtr[1].size, TCL_EVAL_DIRECT)) {
+	Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
+		"\n    (\"%.*s\" body, line %d)",
+		(int)parsePtr->tokenPtr->size, parsePtr->tokenPtr->start,
+		Tcl_GetErrorLine(interp)));
+	envPtr->numCommands = numCommands;
+	envPtr->codeNext = envPtr->codeStart + offset;
+	envPtr->currStackDepth = depth;
+	TclCompileSyntaxError(interp, envPtr);
+    }
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * TclAssembleCode --
+ *
+ *	Take a list of instructions in a Tcl_Obj, and assemble them to Tcl
+ *	bytecodes
+ *
+ * Results:
+ *	Returns TCL_OK on success, TCL_ERROR on failure.  If 'flags' includes
+ *	TCL_EVAL_DIRECT, places an error message in the interpreter result.
+ *
+ * Side effects:
+ *	Adds byte codes to the compile environment, and updates the
+ *	environment's stack depth.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+TclAssembleCode(
+    CompileEnv *envPtr,		/* Compilation environment that is to receive
+				 * the generated bytecode */
+    const char* codePtr,	/* Assembly-language code to be processed */
+    int codeLen,		/* Length of the code */
+    int flags)			/* OR'ed combination of flags */
+{
+    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
+				/* Tcl interpreter */
+    /*
+     * Walk through the assembly script using the Tcl parser.  Each 'command'
+     * will be an instruction or assembly directive.
+     */
+
+    const char* instPtr = codePtr;
+				/* Where to start looking for a line of code */
+    const char* nextPtr;	/* Pointer to the end of the line of code */
+    int bytesLeft = codeLen;	/* Number of bytes of source code remaining to
+				 * be parsed */
+    int status;			/* Tcl status return */
+    AssemblyEnv* assemEnvPtr = NewAssemblyEnv(envPtr, flags);
+    Tcl_Parse* parsePtr = assemEnvPtr->parsePtr;
+
+    do {
+	/*
+	 * Parse out one command line from the assembly script.
+	 */
+
+	status = Tcl_ParseCommand(interp, instPtr, bytesLeft, 0, parsePtr);
+
+	/*
+	 * Report errors in the parse.
+	 */
+
+	if (status != TCL_OK) {
+	    if (flags & TCL_EVAL_DIRECT) {
+		Tcl_LogCommandInfo(interp, codePtr, parsePtr->commandStart,
+			parsePtr->term + 1 - parsePtr->commandStart);
+	    }
+	    FreeAssemblyEnv(assemEnvPtr);
+	    return TCL_ERROR;
+	}
+
+	/*
+	 * Advance the pointers around any leading commentary.
+	 */
+
+	TclAdvanceLines(&assemEnvPtr->cmdLine, instPtr,
+		parsePtr->commandStart);
+	TclAdvanceContinuations(&assemEnvPtr->cmdLine, &assemEnvPtr->clNext,
+		parsePtr->commandStart - envPtr->source);
+
+	/*
+	 * Process the line of code.
+	 */
+
+	if (parsePtr->numWords > 0) {
+	    size_t instLen = parsePtr->commandSize;
+		    /* Length in bytes of the current command */
+
+	    if (parsePtr->term == parsePtr->commandStart + instLen - 1) {
+		--instLen;
+	    }
+
+	    /*
+	     * If tracing, show each line assembled as it happens.
+	     */
+
+#ifdef TCL_COMPILE_DEBUG
+	    if ((tclTraceCompile >= 2) && (envPtr->procPtr == NULL)) {
+		printf("  %4" TCL_Z_MODIFIER "d Assembling: ",
+			envPtr->codeNext - envPtr->codeStart);
+		TclPrintSource(stdout, parsePtr->commandStart,
+			TclMin(instLen, 55));
+		printf("\n");
+	    }
+#endif
+	    if (AssembleOneLine(assemEnvPtr) != TCL_OK) {
+		if (flags & TCL_EVAL_DIRECT) {
+		    Tcl_LogCommandInfo(interp, codePtr,
+			    parsePtr->commandStart, instLen);
+		}
+		Tcl_FreeParse(parsePtr);
+		FreeAssemblyEnv(assemEnvPtr);
+		return TCL_ERROR;
+	    }
+	}
+
+	/*
+	 * Advance to the next line of code.
+	 */
+
+	nextPtr = parsePtr->commandStart + parsePtr->commandSize;
+	bytesLeft -= (nextPtr - instPtr);
+	instPtr = nextPtr;
+	TclAdvanceLines(&assemEnvPtr->cmdLine, parsePtr->commandStart,
+		instPtr);
+	TclAdvanceContinuations(&assemEnvPtr->cmdLine, &assemEnvPtr->clNext,
+		instPtr - envPtr->source);
+	Tcl_FreeParse(parsePtr);
+    } while (bytesLeft > 0);
+
+    /*
+     * Done with parsing the code.
+     */
+
+    status = FinishAssembly(assemEnvPtr);
+    FreeAssemblyEnv(assemEnvPtr);
+    return status;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * NewAssemblyEnv --
+ *
+ *	Creates an environment for the assembler to run in.
+ *
+ * Results:
+ *	Allocates, initialises and returns an assembler environment
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static AssemblyEnv*
+NewAssemblyEnv(
+    CompileEnv* envPtr,		/* Compilation environment being used for code
+				 * generation*/
+    int flags)			/* Compilation flags (TCL_EVAL_DIRECT) */
+{
+    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
+				/* Tcl interpreter */
+    AssemblyEnv* assemEnvPtr = (AssemblyEnv*)TclStackAlloc(interp, sizeof(AssemblyEnv));
+				/* Assembler environment under construction */
+    Tcl_Parse* parsePtr = (Tcl_Parse*)TclStackAlloc(interp, sizeof(Tcl_Parse));
+				/* Parse of one line of assembly code */
+
+    assemEnvPtr->envPtr = envPtr;
+    assemEnvPtr->parsePtr = parsePtr;
+    assemEnvPtr->cmdLine = 1;
+    assemEnvPtr->clNext = envPtr->clNext;
+
+    /*
+     * Make the hashtables that store symbol resolution.
+     */
+
+    Tcl_InitHashTable(&assemEnvPtr->labelHash, TCL_STRING_KEYS);
+
+    /*
+     * Start the first basic block.
+     */
+
+    assemEnvPtr->curr_bb = NULL;
+    assemEnvPtr->head_bb = AllocBB(assemEnvPtr);
+    assemEnvPtr->curr_bb = assemEnvPtr->head_bb;
+    assemEnvPtr->head_bb->startLine = 1;
+
+    /*
+     * Stash compilation flags.
+     */
+
+    assemEnvPtr->flags = flags;
+    return assemEnvPtr;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * FreeAssemblyEnv --
+ *
+ *	Cleans up the assembler environment when assembly is complete.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+FreeAssemblyEnv(
+    AssemblyEnv* assemEnvPtr)	/* Environment to free */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment being used for code
+				 * generation */
+    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
+				/* Tcl interpreter */
+    BasicBlock* thisBB;		/* Pointer to a basic block being deleted */
+    BasicBlock* nextBB;		/* Pointer to a deleted basic block's
+				 * successor */
+
+    /*
+     * Free all the basic block structures.
+     */
+
+    for (thisBB = assemEnvPtr->head_bb; thisBB != NULL; thisBB = nextBB) {
+	if (thisBB->jumpTarget != NULL) {
+	    Tcl_DecrRefCount(thisBB->jumpTarget);
+	}
+	if (thisBB->foreignExceptions != NULL) {
+	    Tcl_Free(thisBB->foreignExceptions);
+	}
+	nextBB = thisBB->successor1;
+	if (thisBB->jtPtr != NULL) {
+	    DeleteMirrorJumpTable(thisBB->jtPtr);
+	    thisBB->jtPtr = NULL;
+	}
+	Tcl_Free(thisBB);
+    }
+
+    /*
+     * Dispose what's left.
+     */
+
+    Tcl_DeleteHashTable(&assemEnvPtr->labelHash);
+    TclStackFree(interp, assemEnvPtr->parsePtr);
+    TclStackFree(interp, assemEnvPtr);
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * AssembleOneLine --
+ *
+ *	Assembles a single command from an assembly language source.
+ *
+ * Results:
+ *	Returns TCL_ERROR with an appropriate error message if the assembly
+ *	fails. Returns TCL_OK if the assembly succeeds. Updates the assembly
+ *	environment with the state of the assembly.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+AssembleOneLine(
+    AssemblyEnv* assemEnvPtr)	/* State of the assembly */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment being used for code
+				 * gen */
+    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
+				/* Tcl interpreter */
+    Tcl_Parse* parsePtr = assemEnvPtr->parsePtr;
+				/* Parse of the line of code */
+    Tcl_Token* tokenPtr;	/* Current token within the line of code */
+    Tcl_Obj* instNameObj;	/* Name of the instruction */
+    int tblIdx;			/* Index in TalInstructionTable of the
+				 * instruction */
+    TalInstType instType;	/* Type of the instruction */
+    Tcl_Obj* operand1Obj = NULL;
+				/* First operand to the instruction */
+    const char* operand1;	/* String rep of the operand */
+    Tcl_Size operand1Len;	/* String length of the operand */
+    int opnd;			/* Integer representation of an operand */
+    int litIndex;		/* Literal pool index of a constant */
+    Tcl_Size localVar;		/* LVT index of a local variable */
+    int flags;			/* Flags for a basic block */
+    JumptableInfo* jtPtr;	/* Pointer to a jumptable */
+    int infoIndex;		/* Index of the jumptable in auxdata */
+    int status = TCL_ERROR;	/* Return value from this function */
+
+    /*
+     * Make sure that the instruction name is known at compile time.
+     */
+
+    tokenPtr = parsePtr->tokenPtr;
+    if (GetNextOperand(assemEnvPtr, &tokenPtr, &instNameObj) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Look up the instruction name.
+     */
+
+    if (Tcl_GetIndexFromObjStruct(interp, instNameObj,
+	    &TalInstructionTable[0].name, sizeof(TalInstDesc), "instruction",
+	    TCL_EXACT, &tblIdx) != TCL_OK) {
+	goto cleanup;
+    }
+
+    /*
+     * Vector on the type of instruction being processed.
+     */
+
+    instType = TalInstructionTable[tblIdx].instType;
+    switch (instType) {
+
+    case ASSEM_PUSH:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "value");
+	    goto cleanup;
+	}
+	if (GetNextOperand(assemEnvPtr, &tokenPtr, &operand1Obj) != TCL_OK) {
+	    goto cleanup;
+	}
+	operand1 = TclGetStringFromObj(operand1Obj, &operand1Len);
+	litIndex = TclRegisterLiteral(envPtr, operand1, operand1Len, 0);
+	BBEmitInst1or4(assemEnvPtr, tblIdx, litIndex, 0);
+	break;
+
+    case ASSEM_1BYTE:
+	if (parsePtr->numWords != 1) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "");
+	    goto cleanup;
+	}
+	BBEmitOpcode(assemEnvPtr, tblIdx, 0);
+	break;
+
+    case ASSEM_BEGIN_CATCH:
+	/*
+	 * Emit the BEGIN_CATCH instruction with the code offset of the
+	 * exception branch target instead of the exception range index. The
+	 * correct index will be generated and inserted later, when catches
+	 * are being resolved.
+	 */
+
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "label");
+	    goto cleanup;
+	}
+	if (GetNextOperand(assemEnvPtr, &tokenPtr, &operand1Obj) != TCL_OK) {
+	    goto cleanup;
+	}
+	assemEnvPtr->curr_bb->jumpLine = assemEnvPtr->cmdLine;
+	assemEnvPtr->curr_bb->jumpOffset = envPtr->codeNext-envPtr->codeStart;
+	BBEmitInstInt4(assemEnvPtr, tblIdx, 0, 0);
+	assemEnvPtr->curr_bb->flags |= BB_BEGINCATCH;
+	StartBasicBlock(assemEnvPtr, BB_FALLTHRU, operand1Obj);
+	break;
+
+    case ASSEM_BOOL:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "boolean");
+	    goto cleanup;
+	}
+	if (GetBooleanOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK) {
+	    goto cleanup;
+	}
+	BBEmitInstInt1(assemEnvPtr, tblIdx, opnd, 0);
+	break;
+
+    case ASSEM_BOOL_LVT4:
+	if (parsePtr->numWords != 3) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "boolean varName");
+	    goto cleanup;
+	}
+	if (GetBooleanOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK) {
+	    goto cleanup;
+	}
+	localVar = FindLocalVar(assemEnvPtr, &tokenPtr);
+	if (localVar < 0) {
+	    goto cleanup;
+	}
+	BBEmitInstInt1(assemEnvPtr, tblIdx, opnd, 0);
+	TclEmitInt4(localVar, envPtr);
+	break;
+
+    case ASSEM_CLOCK_READ:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "imm8");
+	    goto cleanup;
+	}
+	if (GetIntegerOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK) {
+	    goto cleanup;
+	}
+	if (opnd < 0 || opnd > 3) {
+	    Tcl_SetObjResult(interp,
+		     Tcl_NewStringObj("operand must be [0..3]", -1));
+	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "OPERAND<0,>3", (char *)NULL);
+	    goto cleanup;
+	}
+	BBEmitInstInt1(assemEnvPtr, tblIdx, opnd, opnd);
+	break;
+
+    case ASSEM_CONCAT1:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "imm8");
+	    goto cleanup;
+	}
+	if (GetIntegerOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK
+		|| CheckOneByte(interp, opnd) != TCL_OK
+		|| CheckStrictlyPositive(interp, opnd) != TCL_OK) {
+	    goto cleanup;
+	}
+	BBEmitInstInt1(assemEnvPtr, tblIdx, opnd, opnd);
+	break;
+
+    case ASSEM_DICT_GET:
+    case ASSEM_DICT_GET_DEF:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "count");
+	    goto cleanup;
+	}
+	if (GetIntegerOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK
+		|| CheckStrictlyPositive(interp, opnd) != TCL_OK) {
+	    goto cleanup;
+	}
+	BBEmitInstInt4(assemEnvPtr, tblIdx, opnd, opnd+1);
+	break;
+
+    case ASSEM_DICT_SET:
+	if (parsePtr->numWords != 3) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "count varName");
+	    goto cleanup;
+	}
+	if (GetIntegerOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK
+		|| CheckStrictlyPositive(interp, opnd) != TCL_OK) {
+	    goto cleanup;
+	}
+	localVar = FindLocalVar(assemEnvPtr, &tokenPtr);
+	if (localVar < 0) {
+	    goto cleanup;
+	}
+	BBEmitInstInt4(assemEnvPtr, tblIdx, opnd, opnd+1);
+	TclEmitInt4(localVar, envPtr);
+	break;
+
+    case ASSEM_DICT_UNSET:
+	if (parsePtr->numWords != 3) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "count varName");
+	    goto cleanup;
+	}
+	if (GetIntegerOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK
+		|| CheckStrictlyPositive(interp, opnd) != TCL_OK) {
+	    goto cleanup;
+	}
+	localVar = FindLocalVar(assemEnvPtr, &tokenPtr);
+	if (localVar < 0) {
+	    goto cleanup;
+	}
+	BBEmitInstInt4(assemEnvPtr, tblIdx, opnd, opnd);
+	TclEmitInt4(localVar, envPtr);
+	break;
+
+    case ASSEM_END_CATCH:
+	if (parsePtr->numWords != 1) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "");
+	    goto cleanup;
+	}
+	assemEnvPtr->curr_bb->flags |= BB_ENDCATCH;
+	BBEmitOpcode(assemEnvPtr, tblIdx, 0);
+	StartBasicBlock(assemEnvPtr, BB_FALLTHRU, NULL);
+	break;
+
+    case ASSEM_EVAL:
+	/* TODO - Refactor this stuff into a subroutine that takes the inst
+	 * code, the message ("script" or "expression") and an evaluator
+	 * callback that calls TclCompileScript or TclCompileExpr. */
+
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj,
+		    ((TalInstructionTable[tblIdx].tclInstCode
+		    == INST_EVAL_STK) ? "script" : "expression"));
+	    goto cleanup;
+	}
+	if (tokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
+	    CompileEmbeddedScript(assemEnvPtr, tokenPtr+1,
+		    TalInstructionTable+tblIdx);
+	} else if (GetNextOperand(assemEnvPtr, &tokenPtr,
+		&operand1Obj) != TCL_OK) {
+	    goto cleanup;
+	} else {
+	    operand1 = TclGetStringFromObj(operand1Obj, &operand1Len);
+	    litIndex = TclRegisterLiteral(envPtr, operand1, operand1Len, 0);
+
+	    /*
+	     * Assumes that PUSH is the first slot!
+	     */
+
+	    BBEmitInst1or4(assemEnvPtr, 0, litIndex, 0);
+	    BBEmitOpcode(assemEnvPtr, tblIdx, 0);
+	}
+	break;
+
+    case ASSEM_INVOKE:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "count");
+	    goto cleanup;
+	}
+	if (GetIntegerOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK
+		|| CheckStrictlyPositive(interp, opnd) != TCL_OK) {
+	    goto cleanup;
+	}
+
+	BBEmitInst1or4(assemEnvPtr, tblIdx, opnd, opnd);
+	break;
+
+    case ASSEM_JUMP:
+    case ASSEM_JUMP4:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "label");
+	    goto cleanup;
+	}
+	if (GetNextOperand(assemEnvPtr, &tokenPtr, &operand1Obj) != TCL_OK) {
+	    goto cleanup;
+	}
+	assemEnvPtr->curr_bb->jumpOffset = envPtr->codeNext-envPtr->codeStart;
+	if (instType == ASSEM_JUMP) {
+	    flags = BB_JUMP1;
+	    BBEmitInstInt1(assemEnvPtr, tblIdx, 0, 0);
+	} else {
+	    flags = 0;
+	    BBEmitInstInt4(assemEnvPtr, tblIdx, 0, 0);
+	}
+
+	/*
+	 * Start a new basic block at the instruction following the jump.
+	 */
+
+	assemEnvPtr->curr_bb->jumpLine = assemEnvPtr->cmdLine;
+	if (TalInstructionTable[tblIdx].operandsConsumed != 0) {
+	    flags |= BB_FALLTHRU;
+	}
+	StartBasicBlock(assemEnvPtr, flags, operand1Obj);
+	break;
+
+    case ASSEM_JUMPTABLE:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "table");
+	    goto cleanup;
+	}
+	if (GetNextOperand(assemEnvPtr, &tokenPtr, &operand1Obj) != TCL_OK) {
+	    goto cleanup;
+	}
+
+	jtPtr = (JumptableInfo*)Tcl_Alloc(sizeof(JumptableInfo));
+
+	Tcl_InitHashTable(&jtPtr->hashTable, TCL_STRING_KEYS);
+	assemEnvPtr->curr_bb->jumpLine = assemEnvPtr->cmdLine;
+	assemEnvPtr->curr_bb->jumpOffset = envPtr->codeNext-envPtr->codeStart;
+	DEBUG_PRINT("bb %p jumpLine %d jumpOffset %d\n",
+		assemEnvPtr->curr_bb, assemEnvPtr->cmdLine,
+		envPtr->codeNext - envPtr->codeStart);
+
+	infoIndex = TclCreateAuxData(jtPtr, &tclJumptableInfoType, envPtr);
+	DEBUG_PRINT("auxdata index=%d\n", infoIndex);
+
+	BBEmitInstInt4(assemEnvPtr, tblIdx, infoIndex, 0);
+	if (CreateMirrorJumpTable(assemEnvPtr, operand1Obj) != TCL_OK) {
+	    goto cleanup;
+	}
+	StartBasicBlock(assemEnvPtr, BB_JUMPTABLE|BB_FALLTHRU, NULL);
+	break;
+
+    case ASSEM_LABEL:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "name");
+	    goto cleanup;
+	}
+	if (GetNextOperand(assemEnvPtr, &tokenPtr, &operand1Obj) != TCL_OK) {
+	    goto cleanup;
+	}
+
+	/*
+	 * Add the (label_name, address) pair to the hash table.
+	 */
+
+	if (DefineLabel(assemEnvPtr, TclGetString(operand1Obj)) != TCL_OK) {
+	    goto cleanup;
+	}
+	break;
+
+    case ASSEM_LINDEX_MULTI:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "count");
+	    goto cleanup;
+	}
+	if (GetIntegerOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK
+		|| CheckStrictlyPositive(interp, opnd) != TCL_OK) {
+	    goto cleanup;
+	}
+	BBEmitInstInt4(assemEnvPtr, tblIdx, opnd, opnd);
+	break;
+
+    case ASSEM_LIST:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "count");
+	    goto cleanup;
+	}
+	if (GetIntegerOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK
+		|| CheckNonNegative(interp, opnd) != TCL_OK) {
+	    goto cleanup;
+	}
+	BBEmitInstInt4(assemEnvPtr, tblIdx, opnd, opnd);
+	break;
+
+    case ASSEM_INDEX:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "count");
+	    goto cleanup;
+	}
+	if (GetListIndexOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK) {
+	    goto cleanup;
+	}
+	BBEmitInstInt4(assemEnvPtr, tblIdx, opnd, opnd);
+	break;
+
+    case ASSEM_LSET_FLAT:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "count");
+	    goto cleanup;
+	}
+	if (GetIntegerOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK) {
+	    goto cleanup;
+	}
+	if (opnd < 2) {
+	    if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
+		Tcl_SetObjResult(interp,
+			Tcl_NewStringObj("operand must be >=2", -1));
+		Tcl_SetErrorCode(interp, "TCL", "ASSEM", "OPERAND>=2", (char *)NULL);
+	    }
+	    goto cleanup;
+	}
+	BBEmitInstInt4(assemEnvPtr, tblIdx, opnd, opnd);
+	break;
+
+    case ASSEM_LVT:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "varname");
+	    goto cleanup;
+	}
+	localVar = FindLocalVar(assemEnvPtr, &tokenPtr);
+	if (localVar < 0) {
+	    goto cleanup;
+	}
+	BBEmitInst1or4(assemEnvPtr, tblIdx, localVar, 0);
+	break;
+
+    case ASSEM_LVT1:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "varname");
+	    goto cleanup;
+	}
+	localVar = FindLocalVar(assemEnvPtr, &tokenPtr);
+	if (localVar < 0 || CheckOneByte(interp, localVar)) {
+	    goto cleanup;
+	}
+	BBEmitInstInt1(assemEnvPtr, tblIdx, localVar, 0);
+	break;
+
+    case ASSEM_LVT1_SINT1:
+	if (parsePtr->numWords != 3) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "varName imm8");
+	    goto cleanup;
+	}
+	localVar = FindLocalVar(assemEnvPtr, &tokenPtr);
+	if (localVar < 0 || CheckOneByte(interp, localVar)
+		|| GetIntegerOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK
+		|| CheckSignedOneByte(interp, opnd)) {
+	    goto cleanup;
+	}
+	BBEmitInstInt1(assemEnvPtr, tblIdx, localVar, 0);
+	TclEmitInt1(opnd, envPtr);
+	break;
+
+    case ASSEM_LVT4:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "varname");
+	    goto cleanup;
+	}
+	localVar = FindLocalVar(assemEnvPtr, &tokenPtr);
+	if (localVar < 0) {
+	    goto cleanup;
+	}
+	BBEmitInstInt4(assemEnvPtr, tblIdx, localVar, 0);
+	break;
+
+    case ASSEM_OVER:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "count");
+	    goto cleanup;
+	}
+	if (GetIntegerOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK
+		|| CheckNonNegative(interp, opnd) != TCL_OK) {
+	    goto cleanup;
+	}
+	BBEmitInstInt4(assemEnvPtr, tblIdx, opnd, opnd+1);
+	break;
+
+    case ASSEM_REGEXP:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "boolean");
+	    goto cleanup;
+	}
+	if (GetBooleanOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK) {
+	    goto cleanup;
+	}
+	{
+	    BBEmitInstInt1(assemEnvPtr, tblIdx, TCL_REG_ADVANCED | (opnd ? TCL_REG_NOCASE : 0), 0);
+	}
+	break;
+
+    case ASSEM_REVERSE:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "count");
+	    goto cleanup;
+	}
+	if (GetIntegerOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK
+		|| CheckNonNegative(interp, opnd) != TCL_OK) {
+	    goto cleanup;
+	}
+	BBEmitInstInt4(assemEnvPtr, tblIdx, opnd, opnd);
+	break;
+
+    case ASSEM_SINT1:
+	if (parsePtr->numWords != 2) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "imm8");
+	    goto cleanup;
+	}
+	if (GetIntegerOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK
+		|| CheckSignedOneByte(interp, opnd) != TCL_OK) {
+	    goto cleanup;
+	}
+	BBEmitInstInt1(assemEnvPtr, tblIdx, opnd, 0);
+	break;
+
+    case ASSEM_SINT4_LVT4:
+	if (parsePtr->numWords != 3) {
+	    Tcl_WrongNumArgs(interp, 1, &instNameObj, "count varName");
+	    goto cleanup;
+	}
+	if (GetIntegerOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK) {
+	    goto cleanup;
+	}
+	localVar = FindLocalVar(assemEnvPtr, &tokenPtr);
+	if (localVar < 0) {
+	    goto cleanup;
+	}
+	BBEmitInstInt4(assemEnvPtr, tblIdx, opnd, 0);
+	TclEmitInt4(localVar, envPtr);
+	break;
+
+    default:
+	Tcl_Panic("Instruction \"%s\" could not be found, can't happen\n",
+		TclGetString(instNameObj));
+    }
+
+    status = TCL_OK;
+ cleanup:
+    Tcl_DecrRefCount(instNameObj);
+    if (operand1Obj) {
+	Tcl_DecrRefCount(operand1Obj);
+    }
+    return status;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * CompileEmbeddedScript --
+ *
+ *	Compile an embedded 'eval' or 'expr' that appears in assembly code.
+ *
+ * This procedure is called when the 'eval' or 'expr' assembly directive is
+ * encountered, and the argument to the directive is a simple word that
+ * requires no substitution. The appropriate compiler (TclCompileScript or
+ * TclCompileExpr) is invoked recursively, and emits bytecode.
+ *
+ * Before the compiler is invoked, the compilation environment's stack
+ * consumption is reset to zero. Upon return from the compilation, the net
+ * stack effect of the compilation is in the compiler env, and this stack
+ * effect is posted to the assembler environment. The compile environment's
+ * stack consumption is then restored to what it was before (which is actually
+ * the state of the stack on entry to the block of assembly code).
+ *
+ * Any exception ranges pushed by the compilation are copied to the basic
+ * block and removed from the compiler environment. They will be rebuilt at
+ * the end of assembly, when the exception stack depth is actually known.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+CompileEmbeddedScript(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    Tcl_Token* tokenPtr,	/* Tcl_Token containing the script */
+    const TalInstDesc* instPtr)	/* Instruction that determines whether
+				 * the script is 'expr' or 'eval' */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
+				/* Tcl interpreter */
+
+    /*
+     * The expression or script is not only known at compile time, but
+     * actually a "simple word". It can be compiled inline by invoking the
+     * compiler recursively.
+     *
+     * Save away the stack depth and reset it before compiling the script.
+     * We'll record the stack usage of the script in the BasicBlock, and
+     * accumulate it together with the stack usage of the enclosing assembly
+     * code.
+     */
+
+    size_t savedStackDepth = envPtr->currStackDepth;
+    size_t savedMaxStackDepth = envPtr->maxStackDepth;
+    int savedExceptArrayNext = envPtr->exceptArrayNext;
+
+    envPtr->currStackDepth = 0;
+    envPtr->maxStackDepth = 0;
+
+    StartBasicBlock(assemEnvPtr, BB_FALLTHRU, NULL);
+    switch (instPtr->tclInstCode) {
+    case INST_EVAL_STK:
+	TclCompileScript(interp, tokenPtr->start, tokenPtr->size, envPtr);
+	break;
+    case INST_EXPR_STK:
+	TclCompileExpr(interp, tokenPtr->start, tokenPtr->size, envPtr, 1);
+	break;
+    default:
+	Tcl_Panic("no ASSEM_EVAL case for %s (%d), can't happen",
+		instPtr->name, instPtr->tclInstCode);
+    }
+
+    /*
+     * Roll up the stack usage of the embedded block into the assembler
+     * environment.
+     */
+
+    SyncStackDepth(assemEnvPtr);
+    envPtr->currStackDepth = savedStackDepth;
+    envPtr->maxStackDepth = savedMaxStackDepth;
+
+    /*
+     * Save any exception ranges that were pushed by the compiler; they will
+     * need to be fixed up once the stack depth is known.
+     */
+
+    MoveExceptionRangesToBasicBlock(assemEnvPtr, savedExceptArrayNext);
+
+    /*
+     * Flush the current basic block.
+     */
+
+    StartBasicBlock(assemEnvPtr, BB_FALLTHRU, NULL);
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * SyncStackDepth --
+ *
+ *	Copies the stack depth from the compile environment to a basic block.
+ *
+ * Side effects:
+ *	Current and max stack depth in the current basic block are adjusted.
+ *
+ * This procedure is called on return from invoking the compiler for the
+ * 'eval' and 'expr' operations. It adjusts the stack depth of the current
+ * basic block to reflect the stack required by the just-compiled code.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+SyncStackDepth(
+    AssemblyEnv* assemEnvPtr)	/* Assembly environment */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    BasicBlock* curr_bb = assemEnvPtr->curr_bb;
+				/* Current basic block */
+    int maxStackDepth = curr_bb->finalStackDepth + envPtr->maxStackDepth;
+				/* Max stack depth in the basic block */
+
+    if (maxStackDepth > curr_bb->maxStackDepth) {
+	curr_bb->maxStackDepth = maxStackDepth;
+    }
+    curr_bb->finalStackDepth += envPtr->currStackDepth;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * MoveExceptionRangesToBasicBlock --
+ *
+ *	Removes exception ranges that were created by compiling an embedded
+ *	script from the CompileEnv, and stores them in the BasicBlock. They
+ *	will be reinstalled, at the correct stack depth, after control flow
+ *	analysis is complete on the assembly code.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+MoveExceptionRangesToBasicBlock(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    int savedExceptArrayNext)	/* Saved index of the end of the exception
+				 * range array */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    BasicBlock* curr_bb = assemEnvPtr->curr_bb;
+				/* Current basic block */
+    int exceptionCount = envPtr->exceptArrayNext - savedExceptArrayNext;
+				/* Number of ranges that must be moved */
+    int i;
+
+    if (exceptionCount == 0) {
+	/* Nothing to do */
+	return;
+    }
+
+    /*
+     * Save the exception ranges in the basic block. They will be re-added at
+     * the conclusion of assembly; at this time, the INST_BEGIN_CATCH
+     * instructions in the block will be adjusted from whatever range indices
+     * they have [savedExceptArrayNext .. envPtr->exceptArrayNext) to the
+     * indices that the exceptions acquire. The saved exception ranges are
+     * converted to a relative nesting depth. The depth will be recomputed
+     * once flow analysis has determined the actual stack depth of the block.
+     */
+
+    DEBUG_PRINT("basic block %p has %d exceptions starting at %d\n",
+	    curr_bb, exceptionCount, savedExceptArrayNext);
+    curr_bb->foreignExceptionBase = savedExceptArrayNext;
+    curr_bb->foreignExceptionCount = exceptionCount;
+    curr_bb->foreignExceptions =
+		(ExceptionRange*)Tcl_Alloc(exceptionCount * sizeof(ExceptionRange));
+    memcpy(curr_bb->foreignExceptions,
+	    envPtr->exceptArrayPtr + savedExceptArrayNext,
+	    exceptionCount * sizeof(ExceptionRange));
+    for (i = 0; i < exceptionCount; ++i) {
+	curr_bb->foreignExceptions[i].nestingLevel -= envPtr->exceptDepth;
+    }
+    envPtr->exceptArrayNext = savedExceptArrayNext;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * CreateMirrorJumpTable --
+ *
+ *	Makes a jump table with comparison values and assembly code labels.
+ *
+ * Results:
+ *	Returns a standard Tcl status, with an error message in the
+ *	interpreter on error.
+ *
+ * Side effects:
+ *	Initializes the jump table pointer in the current basic block to a
+ *	JumptableInfo. The keys in the JumptableInfo are the comparison
+ *	strings. The values, instead of being jump displacements, are
+ *	Tcl_Obj's with the code labels.
+ */
+
+static int
+CreateMirrorJumpTable(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    Tcl_Obj* jumps)		/* List of alternating keywords and labels */
+{
+    Tcl_Size objc;		/* Number of elements in the 'jumps' list */
+    Tcl_Obj** objv;		/* Pointers to the elements in the list */
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
+				/* Tcl interpreter */
+    BasicBlock* bbPtr = assemEnvPtr->curr_bb;
+				/* Current basic block */
+    JumptableInfo* jtPtr;
+    Tcl_HashTable* jtHashPtr;	/* Hashtable in the JumptableInfo */
+    Tcl_HashEntry* hashEntry;	/* Entry for a key in the hashtable */
+    int isNew;			/* Flag==1 if the key is not yet in the
+				 * table. */
+    Tcl_Size i;
+
+    if (TclListObjLength(interp, jumps, &objc) != TCL_OK) {
+	return TCL_ERROR;
+    }
+    if (objc % 2 != 0) {
+	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "jump table must have an even number of list elements",
+		    -1));
+	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADJUMPTABLE", (char *)NULL);
+	}
+	return TCL_ERROR;
+    }
+    if (TclListObjGetElements(interp, jumps, &objc, &objv) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Allocate the jumptable.
+     */
+
+    jtPtr = (JumptableInfo*)Tcl_Alloc(sizeof(JumptableInfo));
+    jtHashPtr = &jtPtr->hashTable;
+    Tcl_InitHashTable(jtHashPtr, TCL_STRING_KEYS);
+
+    /*
+     * Fill the keys and labels into the table.
+     */
+
+    DEBUG_PRINT("jump table {\n");
+    for (i = 0; i < objc; i+=2) {
+	DEBUG_PRINT("  %s -> %s\n", TclGetString(objv[i]),
+		TclGetString(objv[i+1]));
+	hashEntry = Tcl_CreateHashEntry(jtHashPtr, TclGetString(objv[i]),
+		&isNew);
+	if (!isNew) {
+	    if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
+		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			"duplicate entry in jump table for \"%s\"",
+			TclGetString(objv[i])));
+		Tcl_SetErrorCode(interp, "TCL", "ASSEM", "DUPJUMPTABLEENTRY", (char *)NULL);
+		DeleteMirrorJumpTable(jtPtr);
+		return TCL_ERROR;
+	    }
+	}
+	Tcl_SetHashValue(hashEntry, objv[i+1]);
+	Tcl_IncrRefCount(objv[i+1]);
+    }
+    DEBUG_PRINT("}\n");
+
+    /*
+     * Put the mirror jumptable in the basic block struct.
+     */
+
+    bbPtr->jtPtr = jtPtr;
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * DeleteMirrorJumpTable --
+ *
+ *	Cleans up a jump table when the basic block is deleted.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+DeleteMirrorJumpTable(
+    JumptableInfo* jtPtr)
+{
+    Tcl_HashTable* jtHashPtr = &jtPtr->hashTable;
+				/* Hash table pointer */
+    Tcl_HashSearch search;	/* Hash search control */
+    Tcl_HashEntry* entry;	/* Hash table entry containing a jump label */
+    Tcl_Obj* label;		/* Jump label from the hash table */
+
+    for (entry = Tcl_FirstHashEntry(jtHashPtr, &search);
+	    entry != NULL;
+	    entry = Tcl_NextHashEntry(&search)) {
+	label = (Tcl_Obj*)Tcl_GetHashValue(entry);
+	Tcl_DecrRefCount(label);
+	Tcl_SetHashValue(entry, NULL);
+    }
+    Tcl_DeleteHashTable(jtHashPtr);
+    Tcl_Free(jtPtr);
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * GetNextOperand --
+ *
+ *	Retrieves the next operand in sequence from an assembly instruction,
+ *	and makes sure that its value is known at compile time.
+ *
+ * Results:
+ *	If successful, returns TCL_OK and leaves a Tcl_Obj with the operand
+ *	text in *operandObjPtr. In case of failure, returns TCL_ERROR and
+ *	leaves *operandObjPtr untouched.
+ *
+ * Side effects:
+ *	Advances *tokenPtrPtr around the token just processed.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+GetNextOperand(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    Tcl_Token** tokenPtrPtr,	/* INPUT/OUTPUT: Pointer to the token holding
+				 * the operand */
+    Tcl_Obj** operandObjPtr)	/* OUTPUT: Tcl object holding the operand text
+				 * with \-substitutions done. */
+{
+    Tcl_Interp* interp = (Tcl_Interp*) assemEnvPtr->envPtr->iPtr;
+    Tcl_Obj* operandObj;
+
+    TclNewObj(operandObj);
+    if (!TclWordKnownAtCompileTime(*tokenPtrPtr, operandObj)) {
+	Tcl_DecrRefCount(operandObj);
+	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "assembly code may not contain substitutions", -1));
+	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "NOSUBST", (char *)NULL);
+	}
+	return TCL_ERROR;
+    }
+    *tokenPtrPtr = TokenAfter(*tokenPtrPtr);
+    Tcl_IncrRefCount(operandObj);
+    *operandObjPtr = operandObj;
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * GetBooleanOperand --
+ *
+ *	Retrieves a Boolean operand from the input stream and advances
+ *	the token pointer.
+ *
+ * Results:
+ *	Returns a standard Tcl result (with an error message in the
+ *	interpreter on failure).
+ *
+ * Side effects:
+ *	Stores the Boolean value in (*result) and advances (*tokenPtrPtr)
+ *	to the next token.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+GetBooleanOperand(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    Tcl_Token** tokenPtrPtr,	/* Current token from the parser */
+    int* result)		/* OUTPUT: Integer extracted from the token */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
+				/* Tcl interpreter */
+    Tcl_Token* tokenPtr = *tokenPtrPtr;
+				/* INOUT: Pointer to the next token in the
+				 * source code */
+    Tcl_Obj* intObj;		/* Integer from the source code */
+    int status;			/* Tcl status return */
+
+    /*
+     * Extract the next token as a string.
+     */
+
+    if (GetNextOperand(assemEnvPtr, tokenPtrPtr, &intObj) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Convert to an integer, advance to the next token and return.
+     */
+
+    status = Tcl_GetBooleanFromObj(interp, intObj, result);
+    Tcl_DecrRefCount(intObj);
+    *tokenPtrPtr = TokenAfter(tokenPtr);
+    return status;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * GetIntegerOperand --
+ *
+ *	Retrieves an integer operand from the input stream and advances the
+ *	token pointer.
+ *
+ * Results:
+ *	Returns a standard Tcl result (with an error message in the
+ *	interpreter on failure).
+ *
+ * Side effects:
+ *	Stores the integer value in (*result) and advances (*tokenPtrPtr) to
+ *	the next token.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+GetIntegerOperand(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    Tcl_Token** tokenPtrPtr,	/* Current token from the parser */
+    int* result)		/* OUTPUT: Integer extracted from the token */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
+				/* Tcl interpreter */
+    Tcl_Token* tokenPtr = *tokenPtrPtr;
+				/* INOUT: Pointer to the next token in the
+				 * source code */
+    Tcl_Obj* intObj;		/* Integer from the source code */
+    int status;			/* Tcl status return */
+
+    /*
+     * Extract the next token as a string.
+     */
+
+    if (GetNextOperand(assemEnvPtr, tokenPtrPtr, &intObj) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Convert to an integer, advance to the next token and return.
+     */
+
+    status = Tcl_GetIntFromObj(interp, intObj, result);
+    Tcl_DecrRefCount(intObj);
+    *tokenPtrPtr = TokenAfter(tokenPtr);
+    return status;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * GetListIndexOperand --
+ *
+ *	Gets the value of an operand intended to serve as a list index.
+ *
+ * Results:
+ *	Returns a standard Tcl result: TCL_OK if the parse is successful and
+ *	TCL_ERROR (with an appropriate error message) if the parse fails.
+ *
+ * Side effects:
+ *	Stores the list index at '*index'. Values between -1 and 0x7FFFFFFF
+ *	have their natural meaning; values between -2 and -0x80000000
+ *	represent 'end-2-N'.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+GetListIndexOperand(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    Tcl_Token** tokenPtrPtr,	/* Current token from the parser */
+    int* result)		/* OUTPUT: encoded index derived from the token */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
+				/* Tcl interpreter */
+    Tcl_Token* tokenPtr = *tokenPtrPtr;
+				/* INOUT: Pointer to the next token in the
+				 * source code */
+    Tcl_Obj *value;
+    int status;
+
+    /* General operand validity check */
+    if (GetNextOperand(assemEnvPtr, tokenPtrPtr, &value) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    /* Convert to an integer, advance to the next token and return. */
+    /*
+     * NOTE: Indexing a list with an index before it yields the
+     * same result as indexing after it, and might be more easily portable
+     * when list size limits grow.
+     */
+    status = TclIndexEncode(interp, value,
+	    TCL_INDEX_NONE,TCL_INDEX_NONE, result);
+
+    Tcl_DecrRefCount(value);
+    *tokenPtrPtr = TokenAfter(tokenPtr);
+    return status;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * FindLocalVar --
+ *
+ *	Gets the name of a local variable from the input stream and advances
+ *	the token pointer.
+ *
+ * Results:
+ *	Returns the LVT index of the local variable.  Returns -1 if the
+ *	variable is non-local, not known at compile time, or cannot be
+ *	installed in the LVT (leaving an error message in the interpreter
+ *	result if necessary).
+ *
+ * Side effects:
+ *	Advances the token pointer.  May define a new LVT slot if the variable
+ *	has not yet been seen and the execution context allows for it.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static size_t
+FindLocalVar(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    Tcl_Token** tokenPtrPtr)
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
+				/* Tcl interpreter */
+    Tcl_Token* tokenPtr = *tokenPtrPtr;
+				/* INOUT: Pointer to the next token in the
+				 * source code. */
+    Tcl_Obj* varNameObj;	/* Name of the variable */
+    const char* varNameStr;
+    Tcl_Size varNameLen;
+    Tcl_Size localVar;		/* Index of the variable in the LVT */
+
+    if (GetNextOperand(assemEnvPtr, tokenPtrPtr, &varNameObj) != TCL_OK) {
+	return TCL_INDEX_NONE;
+    }
+    varNameStr = TclGetStringFromObj(varNameObj, &varNameLen);
+    if (CheckNamespaceQualifiers(interp, varNameStr, varNameLen)) {
+	Tcl_DecrRefCount(varNameObj);
+	return TCL_INDEX_NONE;
+    }
+    localVar = TclFindCompiledLocal(varNameStr, varNameLen, 1, envPtr);
+    Tcl_DecrRefCount(varNameObj);
+    if (localVar < 0) {
+	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "cannot use this instruction to create a variable"
+		    " in a non-proc context", -1));
+	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "LVT", (char *)NULL);
+	}
+	return TCL_INDEX_NONE;
+    }
+    *tokenPtrPtr = TokenAfter(tokenPtr);
+    return localVar;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * CheckNamespaceQualifiers --
+ *
+ *	Verify that a variable name has no namespace qualifiers before
+ *	attempting to install it in the LVT.
+ *
+ * Results:
+ *	On success, returns TCL_OK. On failure, returns TCL_ERROR and stores
+ *	an error message in the interpreter result.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+CheckNamespaceQualifiers(
+    Tcl_Interp* interp,		/* Tcl interpreter for error reporting */
+    const char* name,		/* Variable name to check */
+    int nameLen)		/* Length of the variable */
+{
+    const char* p;
+
+    for (p = name; p+2 < name+nameLen;  p++) {
+	if ((*p == ':') && (p[1] == ':')) {
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "variable \"%s\" is not local", name));
+	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "NONLOCAL", name, (char *)NULL);
+	    return TCL_ERROR;
+	}
+    }
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * CheckOneByte --
+ *
+ *	Verify that a constant fits in a single byte in the instruction
+ *	stream.
+ *
+ * Results:
+ *	On success, returns TCL_OK. On failure, returns TCL_ERROR and stores
+ *	an error message in the interpreter result.
+ *
+ * This code is here primarily to verify that instructions like INCR_SCALAR1
+ * are possible on a given local variable. The fact that there is no
+ * INCR_SCALAR4 is puzzling.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+CheckOneByte(
+    Tcl_Interp* interp,		/* Tcl interpreter for error reporting */
+    int value)			/* Value to check */
+{
+    Tcl_Obj* result;		/* Error message */
+
+    if (value < 0 || value > 0xFF) {
+	result = Tcl_NewStringObj("operand does not fit in one byte", -1);
+	Tcl_SetObjResult(interp, result);
+	Tcl_SetErrorCode(interp, "TCL", "ASSEM", "1BYTE", (char *)NULL);
+	return TCL_ERROR;
+    }
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * CheckSignedOneByte --
+ *
+ *	Verify that a constant fits in a single signed byte in the instruction
+ *	stream.
+ *
+ * Results:
+ *	On success, returns TCL_OK. On failure, returns TCL_ERROR and stores
+ *	an error message in the interpreter result.
+ *
+ * This code is here primarily to verify that instructions like INCR_SCALAR1
+ * are possible on a given local variable. The fact that there is no
+ * INCR_SCALAR4 is puzzling.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+CheckSignedOneByte(
+    Tcl_Interp* interp,		/* Tcl interpreter for error reporting */
+    int value)			/* Value to check */
+{
+    Tcl_Obj* result;		/* Error message */
+
+    if (value > 0x7F || value < -0x80) {
+	result = Tcl_NewStringObj("operand does not fit in one byte", -1);
+	Tcl_SetObjResult(interp, result);
+	Tcl_SetErrorCode(interp, "TCL", "ASSEM", "1BYTE", (char *)NULL);
+	return TCL_ERROR;
+    }
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * CheckNonNegative --
+ *
+ *	Verify that a constant is nonnegative
+ *
+ * Results:
+ *	On success, returns TCL_OK. On failure, returns TCL_ERROR and stores
+ *	an error message in the interpreter result.
+ *
+ * This code is here primarily to verify that instructions like INCR_INVOKE
+ * are consuming a positive number of operands
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+CheckNonNegative(
+    Tcl_Interp* interp,		/* Tcl interpreter for error reporting */
+    int value)			/* Value to check */
+{
+    Tcl_Obj* result;		/* Error message */
+
+    if (value < 0) {
+	result = Tcl_NewStringObj("operand must be nonnegative", -1);
+	Tcl_SetObjResult(interp, result);
+	Tcl_SetErrorCode(interp, "TCL", "ASSEM", "NONNEGATIVE", (char *)NULL);
+	return TCL_ERROR;
+    }
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * CheckStrictlyPositive --
+ *
+ *	Verify that a constant is positive
+ *
+ * Results:
+ *	On success, returns TCL_OK. On failure, returns TCL_ERROR and
+ *	stores an error message in the interpreter result.
+ *
+ * This code is here primarily to verify that instructions like INCR_INVOKE
+ * are consuming a positive number of operands
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+CheckStrictlyPositive(
+    Tcl_Interp* interp,		/* Tcl interpreter for error reporting */
+    int value)			/* Value to check */
+{
+    Tcl_Obj* result;		/* Error message */
+
+    if (value <= 0) {
+	result = Tcl_NewStringObj("operand must be positive", -1);
+	Tcl_SetObjResult(interp, result);
+	Tcl_SetErrorCode(interp, "TCL", "ASSEM", "POSITIVE", (char *)NULL);
+	return TCL_ERROR;
+    }
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * DefineLabel --
+ *
+ *	Defines a label appearing in the assembly sequence.
+ *
+ * Results:
+ *	Returns a standard Tcl result. Returns TCL_OK and an empty result if
+ *	the definition succeeds; returns TCL_ERROR and an appropriate message
+ *	if a duplicate definition is found.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+DefineLabel(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    const char* labelName)	/* Label being defined */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
+				/* Tcl interpreter */
+    Tcl_HashEntry* entry;	/* Label's entry in the symbol table */
+    int isNew;			/* Flag == 1 iff the label was previously
+				 * undefined */
+
+    /* TODO - This can now be simplified! */
+
+    StartBasicBlock(assemEnvPtr, BB_FALLTHRU, NULL);
+
+    /*
+     * Look up the newly-defined label in the symbol table.
+     */
+
+    entry = Tcl_CreateHashEntry(&assemEnvPtr->labelHash, labelName, &isNew);
+    if (!isNew) {
+	/*
+	 * This is a duplicate label.
+	 */
+
+	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "duplicate definition of label \"%s\"", labelName));
+	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "DUPLABEL", labelName,
+		    (char *)NULL);
+	}
+	return TCL_ERROR;
+    }
+
+    /*
+     * This is the first appearance of the label in the code.
+     */
+
+    Tcl_SetHashValue(entry, assemEnvPtr->curr_bb);
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * StartBasicBlock --
+ *
+ *	Starts a new basic block when a label or jump is encountered.
+ *
+ * Results:
+ *	Returns a pointer to the BasicBlock structure of the new
+ *	basic block.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static BasicBlock*
+StartBasicBlock(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    int flags,			/* Flags to apply to the basic block being
+				 * closed, if there is one. */
+    Tcl_Obj* jumpLabel)		/* Label of the location that the block jumps
+				 * to, or NULL if the block does not jump */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    BasicBlock* newBB;		/* BasicBlock structure for the new block */
+    BasicBlock* currBB = assemEnvPtr->curr_bb;
+
+    /*
+     * Coalesce zero-length blocks.
+     */
+
+    if (currBB->startOffset == envPtr->codeNext - envPtr->codeStart) {
+	currBB->startLine = assemEnvPtr->cmdLine;
+	return currBB;
+    }
+
+    /*
+     * Make the new basic block.
+     */
+
+    newBB = AllocBB(assemEnvPtr);
+
+    /*
+     * Record the jump target if there is one.
+     */
+
+    currBB->jumpTarget = jumpLabel;
+    if (jumpLabel != NULL) {
+	Tcl_IncrRefCount(currBB->jumpTarget);
+    }
+
+    /*
+     * Record the fallthrough if there is one.
+     */
+
+    currBB->flags |= flags;
+
+    /*
+     * Record the successor block.
+     */
+
+    currBB->successor1 = newBB;
+    assemEnvPtr->curr_bb = newBB;
+    return newBB;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * AllocBB --
+ *
+ *	Allocates a new basic block
+ *
+ * Results:
+ *	Returns a pointer to the newly allocated block, which is initialized
+ *	to contain no code and begin at the current instruction pointer.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static BasicBlock *
+AllocBB(
+    AssemblyEnv* assemEnvPtr)	/* Assembly environment */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+    BasicBlock *bb = (BasicBlock*)Tcl_Alloc(sizeof(BasicBlock));
+
+    bb->originalStartOffset =
+	    bb->startOffset = envPtr->codeNext - envPtr->codeStart;
+    bb->startLine = assemEnvPtr->cmdLine + 1;
+    bb->jumpOffset = -1;
+    bb->jumpLine = -1;
+    bb->prevPtr = assemEnvPtr->curr_bb;
+    bb->predecessor = NULL;
+    bb->successor1 = NULL;
+    bb->jumpTarget = NULL;
+    bb->initialStackDepth = 0;
+    bb->minStackDepth = 0;
+    bb->maxStackDepth = 0;
+    bb->finalStackDepth = 0;
+    bb->catchDepth = 0;
+    bb->enclosingCatch = NULL;
+    bb->foreignExceptionBase = -1;
+    bb->foreignExceptionCount = 0;
+    bb->foreignExceptions = NULL;
+    bb->jtPtr = NULL;
+    bb->flags = 0;
+
+    return bb;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * FinishAssembly --
+ *
+ *	Postprocessing after all bytecode has been generated for a block of
+ *	assembly code.
+ *
+ * Results:
+ *	Returns a standard Tcl result, with an error message left in the
+ *	interpreter if appropriate.
+ *
+ * Side effects:
+ *	The program is checked to see if any undefined labels remain.  The
+ *	initial stack depth of all the basic blocks in the flow graph is
+ *	calculated and saved.  The stack balance on exit is computed, checked
+ *	and saved.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+FinishAssembly(
+    AssemblyEnv* assemEnvPtr)	/* Assembly environment */
+{
+    int mustMove;		/* Amount by which the code needs to be grown
+				 * because of expanding jumps */
+
+    /*
+     * Resolve the targets of all jumps and determine whether code needs to be
+     * moved around.
+     */
+
+    if (CalculateJumpRelocations(assemEnvPtr, &mustMove)) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Move the code if necessary.
+     */
+
+    if (mustMove) {
+	MoveCodeForJumps(assemEnvPtr, mustMove);
+    }
+
+    /*
+     * Resolve jump target labels to bytecode offsets.
+     */
+
+    FillInJumpOffsets(assemEnvPtr);
+
+    /*
+     * Label each basic block with its catch context. Quit on inconsistency.
+     */
+
+    if (ProcessCatches(assemEnvPtr) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Make sure that no block accessible from a catch's error exit that hasn't
+     * popped the exception stack can throw an exception.
+     */
+
+    if (CheckForThrowInWrongContext(assemEnvPtr) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Compute stack balance throughout the program.
+     */
+
+    if (CheckStack(assemEnvPtr) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * TODO - Check for unreachable code. Or maybe not; unreachable code is
+     * Mostly Harmless.
+     */
+
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * CalculateJumpRelocations --
+ *
+ *	Calculate any movement that has to be done in the assembly code to
+ *	expand JUMP1 instructions to JUMP4 (because they jump more than a
+ *	1-byte range).
+ *
+ * Results:
+ *	Returns a standard Tcl result, with an appropriate error message if
+ *	anything fails.
+ *
+ * Side effects:
+ *	Sets the 'startOffset' pointer in every basic block to the new origin
+ *	of the block, and turns off JUMP1 flags on instructions that must be
+ *	expanded (and adjusts them to the corresponding JUMP4's).  Does *not*
+ *	store the jump offsets at this point.
+ *
+ *	Sets *mustMove to 1 if and only if at least one instruction changed
+ *	size so the code must be moved.
+ *
+ *	As a side effect, also checks for undefined labels and reports them.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+CalculateJumpRelocations(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    int* mustMove)		/* OUTPUT: Number of bytes that have been
+				 * added to the code */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    BasicBlock* bbPtr;		/* Pointer to a basic block being checked */
+    Tcl_HashEntry* entry;	/* Exit label's entry in the symbol table */
+    BasicBlock* jumpTarget;	/* Basic block where the jump goes */
+    int motion;			/* Amount by which the code has expanded */
+    int offset;			/* Offset in the bytecode from a jump
+				 * instruction to its target */
+    unsigned opcode;		/* Opcode in the bytecode being adjusted */
+
+    /*
+     * Iterate through basic blocks as long as a change results in code
+     * expansion.
+     */
+
+    *mustMove = 0;
+    do {
+	motion = 0;
+	for (bbPtr = assemEnvPtr->head_bb;
+		bbPtr != NULL;
+		bbPtr = bbPtr->successor1) {
+	    /*
+	     * Advance the basic block start offset by however many bytes we
+	     * have inserted in the code up to this point
+	     */
+
+	    bbPtr->startOffset += motion;
+
+	    /*
+	     * If the basic block references a label (and hence performs a
+	     * jump), find the location of the label. Report an error if the
+	     * label is missing.
+	     */
+
+	    if (bbPtr->jumpTarget != NULL) {
+		entry = Tcl_FindHashEntry(&assemEnvPtr->labelHash,
+			TclGetString(bbPtr->jumpTarget));
+		if (entry == NULL) {
+		    ReportUndefinedLabel(assemEnvPtr, bbPtr,
+			    bbPtr->jumpTarget);
+		    return TCL_ERROR;
+		}
+
+		/*
+		 * If the instruction is a JUMP1, turn it into a JUMP4 if its
+		 * target is out of range.
+		 */
+
+		jumpTarget = (BasicBlock*)Tcl_GetHashValue(entry);
+		if (bbPtr->flags & BB_JUMP1) {
+		    offset = jumpTarget->startOffset
+			    - (bbPtr->jumpOffset + motion);
+		    if (offset < -0x80 || offset > 0x7F) {
+			opcode = TclGetUInt1AtPtr(envPtr->codeStart
+				+ bbPtr->jumpOffset);
+			++opcode;
+			TclStoreInt1AtPtr(opcode,
+				envPtr->codeStart + bbPtr->jumpOffset);
+			motion += 3;
+			bbPtr->flags &= ~BB_JUMP1;
+		    }
+		}
+	    }
+
+	    /*
+	     * If the basic block references a jump table, that doesn't affect
+	     * the code locations, but resolve the labels now, and store basic
+	     * block pointers in the jumptable hash.
+	     */
+
+	    if (bbPtr->flags & BB_JUMPTABLE) {
+		if (CheckJumpTableLabels(assemEnvPtr, bbPtr) != TCL_OK) {
+		    return TCL_ERROR;
+		}
+	    }
+	}
+	*mustMove += motion;
+    } while (motion != 0);
+
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * CheckJumpTableLabels --
+ *
+ *	Make sure that all the labels in a jump table are defined.
+ *
+ * Results:
+ *	Returns TCL_OK if they are, TCL_ERROR if they aren't.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+CheckJumpTableLabels(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    BasicBlock* bbPtr)		/* Basic block that ends in a jump table */
+{
+    Tcl_HashTable* symHash = &bbPtr->jtPtr->hashTable;
+				/* Hash table with the symbols */
+    Tcl_HashSearch search;	/* Hash table iterator */
+    Tcl_HashEntry* symEntryPtr;	/* Hash entry for the symbols */
+    Tcl_Obj* symbolObj;		/* Jump target */
+    Tcl_HashEntry* valEntryPtr;	/* Hash entry for the resolutions */
+
+    /*
+     * Look up every jump target in the jump hash.
+     */
+
+    DEBUG_PRINT("check jump table labels %p {\n", bbPtr);
+    for (symEntryPtr = Tcl_FirstHashEntry(symHash, &search);
+	    symEntryPtr != NULL;
+	    symEntryPtr = Tcl_NextHashEntry(&search)) {
+	symbolObj = (Tcl_Obj*)Tcl_GetHashValue(symEntryPtr);
+	valEntryPtr = Tcl_FindHashEntry(&assemEnvPtr->labelHash,
+		TclGetString(symbolObj));
+	DEBUG_PRINT("  %s -> %s (%d)\n",
+		(char *)Tcl_GetHashKey(symHash, symEntryPtr),
+		TclGetString(symbolObj), (valEntryPtr != NULL));
+	if (valEntryPtr == NULL) {
+	    ReportUndefinedLabel(assemEnvPtr, bbPtr, symbolObj);
+	    return TCL_ERROR;
+	}
+    }
+    DEBUG_PRINT("}\n");
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * ReportUndefinedLabel --
+ *
+ *	Report that a basic block refers to an undefined jump label
+ *
+ * Side effects:
+ *	Stores an error message, error code, and line number information in
+ *	the assembler's Tcl interpreter.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+ReportUndefinedLabel(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    BasicBlock* bbPtr,		/* Basic block that contains the undefined
+				 * label */
+    Tcl_Obj* jumpTarget)	/* Label of a jump target */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
+				/* Tcl interpreter */
+
+    if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"undefined label \"%s\"", TclGetString(jumpTarget)));
+	Tcl_SetErrorCode(interp, "TCL", "ASSEM", "NOLABEL",
+		TclGetString(jumpTarget), (char *)NULL);
+	Tcl_SetErrorLine(interp, bbPtr->jumpLine);
+    }
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * MoveCodeForJumps --
+ *
+ *	Move bytecodes in memory to accommodate JUMP1 instructions that have
+ *	expanded to become JUMP4's.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+MoveCodeForJumps(
+    AssemblyEnv* assemEnvPtr,	/* Assembler environment */
+    int mustMove)		/* Number of bytes of added code */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    BasicBlock* bbPtr;		/* Pointer to a basic block being checked */
+    int topOffset;		/* Bytecode offset of the following basic
+				 * block before code motion */
+
+    /*
+     * Make sure that there is enough space in the bytecode array to
+     * accommodate the expanded code.
+     */
+
+    while (envPtr->codeEnd < envPtr->codeNext + mustMove) {
+	TclExpandCodeArray(envPtr);
+    }
+
+    /*
+     * Iterate through the bytecodes in reverse order, and move them upward to
+     * their new homes.
+     */
+
+    topOffset = envPtr->codeNext - envPtr->codeStart;
+    for (bbPtr = assemEnvPtr->curr_bb; bbPtr != NULL; bbPtr = bbPtr->prevPtr) {
+	DEBUG_PRINT("move code from %d to %d\n",
+		bbPtr->originalStartOffset, bbPtr->startOffset);
+	memmove(envPtr->codeStart + bbPtr->startOffset,
+		envPtr->codeStart + bbPtr->originalStartOffset,
+		topOffset - bbPtr->originalStartOffset);
+	topOffset = bbPtr->originalStartOffset;
+	bbPtr->jumpOffset += (bbPtr->startOffset - bbPtr->originalStartOffset);
+    }
+    envPtr->codeNext += mustMove;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * FillInJumpOffsets --
+ *
+ *	Fill in the final offsets of all jump instructions once bytecode
+ *	locations have been completely determined.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+FillInJumpOffsets(
+    AssemblyEnv* assemEnvPtr)	/* Assembly environment */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    BasicBlock* bbPtr;		/* Pointer to a basic block being checked */
+    Tcl_HashEntry* entry;	/* Hashtable entry for a jump target label */
+    BasicBlock* jumpTarget;	/* Basic block where a jump goes */
+    int fromOffset;		/* Bytecode location of a jump instruction */
+    int targetOffset;		/* Bytecode location of a jump instruction's
+				 * target */
+
+    for (bbPtr = assemEnvPtr->head_bb;
+	    bbPtr != NULL;
+	    bbPtr = bbPtr->successor1) {
+	if (bbPtr->jumpTarget != NULL) {
+	    entry = Tcl_FindHashEntry(&assemEnvPtr->labelHash,
+		    TclGetString(bbPtr->jumpTarget));
+	    jumpTarget = (BasicBlock*)Tcl_GetHashValue(entry);
+	    fromOffset = bbPtr->jumpOffset;
+	    targetOffset = jumpTarget->startOffset;
+	    if (bbPtr->flags & BB_JUMP1) {
+		TclStoreInt1AtPtr(targetOffset - fromOffset,
+			envPtr->codeStart + fromOffset + 1);
+	    } else {
+		TclStoreInt4AtPtr(targetOffset - fromOffset,
+			envPtr->codeStart + fromOffset + 1);
+	    }
+	}
+	if (bbPtr->flags & BB_JUMPTABLE) {
+	    ResolveJumpTableTargets(assemEnvPtr, bbPtr);
+	}
+    }
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * ResolveJumpTableTargets --
+ *
+ *	Puts bytecode addresses for the targets of a jumptable into the
+ *	table
+ *
+ * Results:
+ *	Returns TCL_OK if they are, TCL_ERROR if they aren't.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+ResolveJumpTableTargets(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    BasicBlock* bbPtr)		/* Basic block that ends in a jump table */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    Tcl_HashTable* symHash = &bbPtr->jtPtr->hashTable;
+				/* Hash table with the symbols */
+    Tcl_HashSearch search;	/* Hash table iterator */
+    Tcl_HashEntry* symEntryPtr;	/* Hash entry for the symbols */
+    Tcl_Obj* symbolObj;		/* Jump target */
+    Tcl_HashEntry* valEntryPtr;	/* Hash entry for the resolutions */
+    int auxDataIndex;		/* Index of the auxdata */
+    JumptableInfo* realJumpTablePtr;
+				/* Jump table in the actual code */
+    Tcl_HashTable* realJumpHashPtr;
+				/* Jump table hash in the actual code */
+    Tcl_HashEntry* realJumpEntryPtr;
+				/* Entry in the jump table hash in
+				 * the actual code */
+    BasicBlock* jumpTargetBBPtr;
+				/* Basic block that the jump proceeds to */
+
+    auxDataIndex = TclGetInt4AtPtr(envPtr->codeStart + bbPtr->jumpOffset + 1);
+    DEBUG_PRINT("bbPtr = %p jumpOffset = %d auxDataIndex = %d\n",
+	    bbPtr, bbPtr->jumpOffset, auxDataIndex);
+    realJumpTablePtr = (JumptableInfo*)TclFetchAuxData(envPtr, auxDataIndex);
+    realJumpHashPtr = &realJumpTablePtr->hashTable;
+
+    /*
+     * Look up every jump target in the jump hash.
+     */
+
+    DEBUG_PRINT("resolve jump table {\n");
+    for (symEntryPtr = Tcl_FirstHashEntry(symHash, &search);
+	    symEntryPtr != NULL;
+	    symEntryPtr = Tcl_NextHashEntry(&search)) {
+	symbolObj = (Tcl_Obj*)Tcl_GetHashValue(symEntryPtr);
+	DEBUG_PRINT("     symbol %s\n", TclGetString(symbolObj));
+
+	valEntryPtr = Tcl_FindHashEntry(&assemEnvPtr->labelHash,
+		TclGetString(symbolObj));
+	jumpTargetBBPtr = (BasicBlock*)Tcl_GetHashValue(valEntryPtr);
+
+	realJumpEntryPtr = Tcl_CreateHashEntry(realJumpHashPtr,
+		Tcl_GetHashKey(symHash, symEntryPtr), NULL);
+	DEBUG_PRINT("  %s -> %s -> bb %p (pc %d)    hash entry %p\n",
+		(char *)Tcl_GetHashKey(symHash, symEntryPtr),
+		TclGetString(symbolObj), jumpTargetBBPtr,
+		jumpTargetBBPtr->startOffset, realJumpEntryPtr);
+
+	Tcl_SetHashValue(realJumpEntryPtr,
+		INT2PTR(jumpTargetBBPtr->startOffset - bbPtr->jumpOffset));
+    }
+    DEBUG_PRINT("}\n");
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * CheckForThrowInWrongContext --
+ *
+ *	Verify that no beginCatch/endCatch sequence can throw an exception
+ *	after an original exception is caught and before its exception context
+ *	is removed from the stack.
+ *
+ * Results:
+ *	Returns a standard Tcl result.
+ *
+ * Side effects:
+ *	Stores an appropriate error message in the interpreter as needed.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+CheckForThrowInWrongContext(
+    AssemblyEnv* assemEnvPtr)	/* Assembly environment */
+{
+    BasicBlock* blockPtr;	/* Current basic block */
+
+    /*
+     * Walk through the basic blocks in turn, checking all the ones that have
+     * caught an exception and not disposed of it properly.
+     */
+
+    for (blockPtr = assemEnvPtr->head_bb;
+	    blockPtr != NULL;
+	    blockPtr = blockPtr->successor1) {
+	if (blockPtr->catchState == BBCS_CAUGHT) {
+	    /*
+	     * Walk through the instructions in the basic block.
+	     */
+
+	    if (CheckNonThrowingBlock(assemEnvPtr, blockPtr) != TCL_OK) {
+		return TCL_ERROR;
+	    }
+	}
+    }
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * CheckNonThrowingBlock --
+ *
+ *	Check that a basic block cannot throw an exception.
+ *
+ * Results:
+ *	Returns TCL_ERROR if the block cannot be proven to be nonthrowing.
+ *
+ * Side effects:
+ *	Stashes an error message in the interpreter result.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+CheckNonThrowingBlock(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    BasicBlock* blockPtr)	/* Basic block where exceptions are not
+				 * allowed */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
+				/* Tcl interpreter */
+    BasicBlock* nextPtr;	/* Pointer to the succeeding basic block */
+    int offset;			/* Bytecode offset of the current
+				 * instruction */
+    int bound;			/* Bytecode offset following the last
+				 * instruction of the block. */
+    unsigned char opcode;	/* Current bytecode instruction */
+
+    /*
+     * Determine where in the code array the basic block ends.
+     */
+
+    nextPtr = blockPtr->successor1;
+    if (nextPtr == NULL) {
+	bound = envPtr->codeNext - envPtr->codeStart;
+    } else {
+	bound = nextPtr->startOffset;
+    }
+
+    /*
+     * Walk through the instructions of the block.
+     */
+
+    offset = blockPtr->startOffset;
+    while (offset < bound) {
+	/*
+	 * Determine whether an instruction is nonthrowing.
+	 */
+
+	opcode = (envPtr->codeStart)[offset];
+	if (BytecodeMightThrow(opcode)) {
+	    /*
+	     * Report an error for a throw in the wrong context.
+	     */
+
+	    if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
+		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			"\"%s\" instruction may not appear in "
+			"a context where an exception has been "
+			"caught and not disposed of.",
+			tclInstructionTable[opcode].name));
+		Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADTHROW", (char *)NULL);
+		AddBasicBlockRangeToErrorInfo(assemEnvPtr, blockPtr);
+	    }
+	    return TCL_ERROR;
+	}
+	offset += tclInstructionTable[opcode].numBytes;
+    }
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * BytecodeMightThrow --
+ *
+ *	Tests if a given bytecode instruction might throw an exception.
+ *
+ * Results:
+ *	Returns 1 if the bytecode might throw an exception, 0 if the
+ *	instruction is known never to throw.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+BytecodeMightThrow(
+    unsigned char opcode)
+{
+    /*
+     * Binary search on the non-throwing bytecode list.
+     */
+
+    int min = 0;
+    int max = sizeof(NonThrowingByteCodes) - 1;
+    int mid;
+    unsigned char c;
+
+    while (max >= min) {
+	mid = (min + max) / 2;
+	c = NonThrowingByteCodes[mid];
+	if (opcode < c) {
+	    max = mid-1;
+	} else if (opcode > c) {
+	    min = mid+1;
+	} else {
+	    /*
+	     * Opcode is nonthrowing.
+	     */
+
+	    return 0;
+	}
+    }
+
+    return 1;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * CheckStack --
+ *
+ *	Audit stack usage in a block of assembly code.
+ *
+ * Results:
+ *	Returns a standard Tcl result.
+ *
+ * Side effects:
+ *	Updates stack depth on entry for all basic blocks in the flowgraph.
+ *	Calculates the max stack depth used in the program, and updates the
+ *	compilation environment to reflect it.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+CheckStack(
+    AssemblyEnv* assemEnvPtr)	/* Assembly environment */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    Tcl_Size maxDepth;		/* Maximum stack depth overall */
+
+    /*
+     * Checking the head block will check all the other blocks recursively.
+     */
+
+    assemEnvPtr->maxDepth = 0;
+    if (StackCheckBasicBlock(assemEnvPtr, assemEnvPtr->head_bb, NULL,
+	    0) == TCL_ERROR) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Post the max stack depth back to the compilation environment.
+     */
+
+    maxDepth = assemEnvPtr->maxDepth + envPtr->currStackDepth;
+    if (maxDepth > envPtr->maxStackDepth) {
+	envPtr->maxStackDepth = maxDepth;
+    }
+
+    /*
+     * If the exit is reachable, make sure that the program exits with 1
+     * operand on the stack.
+     */
+
+    if (StackCheckExit(assemEnvPtr) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Reset the visited state on all basic blocks.
+     */
+
+    ResetVisitedBasicBlocks(assemEnvPtr);
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * StackCheckBasicBlock --
+ *
+ *	Checks stack consumption for a basic block (and recursively for its
+ *	successors).
+ *
+ * Results:
+ *	Returns a standard Tcl result.
+ *
+ * Side effects:
+ *	Updates initial stack depth for the basic block and its successors.
+ *	(Final and maximum stack depth are relative to initial, and are not
+ *	touched).
+ *
+ * This procedure eventually checks, for the entire flow graph, whether stack
+ * balance is consistent.  It is an error for a given basic block to be
+ * reachable along multiple flow paths with different stack depths.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+StackCheckBasicBlock(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    BasicBlock* blockPtr,	/* Pointer to the basic block being checked */
+    BasicBlock* predecessor,	/* Pointer to the block that passed control to
+				 * this one. */
+    int initialStackDepth)	/* Stack depth on entry to the block */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
+				/* Tcl interpreter */
+    BasicBlock* jumpTarget;	/* Basic block where a jump goes */
+    int stackDepth;		/* Current stack depth */
+    int maxDepth;		/* Maximum stack depth so far */
+    int result;			/* Tcl status return */
+    Tcl_HashSearch jtSearch;	/* Search structure for the jump table */
+    Tcl_HashEntry* jtEntry;	/* Hash entry in the jump table */
+    Tcl_Obj* targetLabel;	/* Target label from the jump table */
+    Tcl_HashEntry* entry;	/* Hash entry in the label table */
+
+    if (blockPtr->flags & BB_VISITED) {
+	/*
+	 * If the block is already visited, check stack depth for consistency
+	 * among the paths that reach it.
+	 */
+
+	if (blockPtr->initialStackDepth == initialStackDepth) {
+	    return TCL_OK;
+	}
+	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "inconsistent stack depths on two execution paths", -1));
+
+	    /*
+	     * TODO - add execution trace of both paths
+	     */
+
+	    Tcl_SetErrorLine(interp, blockPtr->startLine);
+	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADSTACK", (char *)NULL);
+	}
+	return TCL_ERROR;
+    }
+
+    /*
+     * If the block is not already visited, set the 'predecessor' link to
+     * indicate how control got to it. Set the initial stack depth to the
+     * current stack depth in the flow of control.
+     */
+
+    blockPtr->flags |= BB_VISITED;
+    blockPtr->predecessor = predecessor;
+    blockPtr->initialStackDepth = initialStackDepth;
+
+    /*
+     * Calculate minimum stack depth, and flag an error if the block
+     * underflows the stack.
+     */
+
+    if (initialStackDepth + blockPtr->minStackDepth < 0) {
+	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj("stack underflow", -1));
+	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADSTACK", (char *)NULL);
+	    AddBasicBlockRangeToErrorInfo(assemEnvPtr, blockPtr);
+	    Tcl_SetErrorLine(interp, blockPtr->startLine);
+	}
+	return TCL_ERROR;
+    }
+
+    /*
+     * Make sure that the block doesn't try to pop below the stack level of an
+     * enclosing catch.
+     */
+
+    if (blockPtr->enclosingCatch != 0 &&
+	    initialStackDepth + blockPtr->minStackDepth
+	    < (blockPtr->enclosingCatch->initialStackDepth
+		+ blockPtr->enclosingCatch->finalStackDepth)) {
+	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "code pops stack below level of enclosing catch", -1));
+	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADSTACKINCATCH", (char *)NULL);
+	    AddBasicBlockRangeToErrorInfo(assemEnvPtr, blockPtr);
+	    Tcl_SetErrorLine(interp, blockPtr->startLine);
+	}
+	return TCL_ERROR;
+    }
+
+    /*
+     * Update maximum stgack depth.
+     */
+
+    maxDepth = initialStackDepth + blockPtr->maxStackDepth;
+    if (maxDepth > assemEnvPtr->maxDepth) {
+	assemEnvPtr->maxDepth = maxDepth;
+    }
+
+    /*
+     * Calculate stack depth on exit from the block, and invoke this procedure
+     * recursively to check successor blocks.
+     */
+
+    stackDepth = initialStackDepth + blockPtr->finalStackDepth;
+    result = TCL_OK;
+    if (blockPtr->flags & BB_FALLTHRU) {
+	result = StackCheckBasicBlock(assemEnvPtr, blockPtr->successor1,
+		blockPtr, stackDepth);
+    }
+
+    if (result == TCL_OK && blockPtr->jumpTarget != NULL) {
+	entry = Tcl_FindHashEntry(&assemEnvPtr->labelHash,
+		TclGetString(blockPtr->jumpTarget));
+	jumpTarget = (BasicBlock*)Tcl_GetHashValue(entry);
+	result = StackCheckBasicBlock(assemEnvPtr, jumpTarget, blockPtr,
+		stackDepth);
+    }
+
+    /*
+     * All blocks referenced in a jump table are successors.
+     */
+
+    if (blockPtr->flags & BB_JUMPTABLE) {
+	for (jtEntry = Tcl_FirstHashEntry(&blockPtr->jtPtr->hashTable,
+		    &jtSearch);
+		result == TCL_OK && jtEntry != NULL;
+		jtEntry = Tcl_NextHashEntry(&jtSearch)) {
+	    targetLabel = (Tcl_Obj*)Tcl_GetHashValue(jtEntry);
+	    entry = Tcl_FindHashEntry(&assemEnvPtr->labelHash,
+		    TclGetString(targetLabel));
+	    jumpTarget = (BasicBlock*)Tcl_GetHashValue(entry);
+	    result = StackCheckBasicBlock(assemEnvPtr, jumpTarget,
+		    blockPtr, stackDepth);
+	}
+    }
+
+    return result;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * StackCheckExit --
+ *
+ *	Makes sure that the net stack effect of an entire assembly language
+ *	script is to push 1 result.
+ *
+ * Results:
+ *	Returns a standard Tcl result, with an error message in the
+ *	interpreter result if the stack is wrong.
+ *
+ * Side effects:
+ *	If the assembly code had a net stack effect of zero, emits code to the
+ *	concluding block to push a null result. In any case, updates the stack
+ *	depth in the compile environment to reflect the net effect of the
+ *	assembly code.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+StackCheckExit(
+    AssemblyEnv* assemEnvPtr)	/* Assembly environment */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
+				/* Tcl interpreter */
+    int depth;			/* Net stack effect */
+    int litIndex;		/* Index in the literal pool of the empty
+				 * string */
+    BasicBlock* curr_bb = assemEnvPtr->curr_bb;
+				/* Final basic block in the assembly */
+
+    /*
+     * Don't perform these checks if execution doesn't reach the exit (either
+     * because of an infinite loop or because the only return is from the
+     * middle.
+     */
+
+    if (curr_bb->flags & BB_VISITED) {
+	/*
+	 * Exit with no operands; push an empty one.
+	 */
+
+	depth = curr_bb->finalStackDepth + curr_bb->initialStackDepth;
+	if (depth == 0) {
+	    /*
+	     * Emit a 'push' of the empty literal.
+	     */
+
+	    litIndex = TclRegisterLiteral(envPtr, "", 0, 0);
+
+	    /*
+	     * Assumes that 'push' is at slot 0 in TalInstructionTable.
+	     */
+
+	    BBEmitInst1or4(assemEnvPtr, 0, litIndex, 0);
+	    ++depth;
+	}
+
+	/*
+	 * Exit with unbalanced stack.
+	 */
+
+	if (depth != 1) {
+	    if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
+		Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			"stack is unbalanced on exit from the code (depth=%d)",
+			depth));
+		Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADSTACK", (char *)NULL);
+	    }
+	    return TCL_ERROR;
+	}
+
+	/*
+	 * Record stack usage.
+	 */
+
+	envPtr->currStackDepth += depth;
+    }
+
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * ProcessCatches --
+ *
+ *	First pass of 'catch' processing.
+ *
+ * Results:
+ *	Returns a standard Tcl result, with an appropriate error message if
+ *	the result is TCL_ERROR.
+ *
+ * Side effects:
+ *	Labels all basic blocks with their enclosing catches.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+ProcessCatches(
+    AssemblyEnv* assemEnvPtr)	/* Assembly environment */
+{
+    BasicBlock* blockPtr;	/* Pointer to a basic block */
+
+    /*
+     * Clear the catch state of all basic blocks.
+     */
+
+    for (blockPtr = assemEnvPtr->head_bb;
+	    blockPtr != NULL;
+	    blockPtr = blockPtr->successor1) {
+	blockPtr->catchState = BBCS_UNKNOWN;
+	blockPtr->enclosingCatch = NULL;
+    }
+
+    /*
+     * Start the check recursively from the first basic block, which is
+     * outside any exception context
+     */
+
+    if (ProcessCatchesInBasicBlock(assemEnvPtr, assemEnvPtr->head_bb,
+	    NULL, BBCS_NONE, 0) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Check for unclosed catch on exit.
+     */
+
+    if (CheckForUnclosedCatches(assemEnvPtr) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Now there's enough information to build the exception ranges.
+     */
+
+    if (BuildExceptionRanges(assemEnvPtr) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Finally, restore any exception ranges from embedded scripts.
+     */
+
+    RestoreEmbeddedExceptionRanges(assemEnvPtr);
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * ProcessCatchesInBasicBlock --
+ *
+ *	First-pass catch processing for one basic block.
+ *
+ * Results:
+ *	Returns a standard Tcl result, with error message in the interpreter
+ *	result if an error occurs.
+ *
+ * This procedure checks consistency of the exception context through the
+ * assembler program, and records the enclosing 'catch' for every basic block.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+ProcessCatchesInBasicBlock(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    BasicBlock* bbPtr,		/* Basic block being processed */
+    BasicBlock* enclosing,	/* Start basic block of the enclosing catch */
+    enum BasicBlockCatchState state,
+				/* BBCS_NONE, BBCS_INCATCH, or BBCS_CAUGHT */
+    int catchDepth)		/* Depth of nesting of catches */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
+				/* Tcl interpreter */
+    int result;			/* Return value from this procedure */
+    BasicBlock* fallThruEnclosing;
+				/* Enclosing catch if execution falls thru */
+    enum BasicBlockCatchState fallThruState;
+				/* Catch state of the successor block */
+    BasicBlock* jumpEnclosing;	/* Enclosing catch if execution goes to jump
+				 * target */
+    enum BasicBlockCatchState jumpState;
+				/* Catch state of the jump target */
+    int changed = 0;		/* Flag == 1 iff successor blocks need to be
+				 * checked because the state of this block has
+				 * changed. */
+    BasicBlock* jumpTarget;	/* Basic block where a jump goes */
+    Tcl_HashSearch jtSearch;	/* Hash search control for a jumptable */
+    Tcl_HashEntry* jtEntry;	/* Entry in a jumptable */
+    Tcl_Obj* targetLabel;	/* Target label from a jumptable */
+    Tcl_HashEntry* entry;	/* Entry from the label table */
+
+    /*
+     * Update the state of the current block, checking for consistency.  Set
+     * 'changed' to 1 if the state changes and successor blocks need to be
+     * rechecked.
+     */
+
+    if (bbPtr->catchState == BBCS_UNKNOWN) {
+	bbPtr->enclosingCatch = enclosing;
+    } else if (bbPtr->enclosingCatch != enclosing) {
+	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "execution reaches an instruction in inconsistent "
+		    "exception contexts", -1));
+	    Tcl_SetErrorLine(interp, bbPtr->startLine);
+	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADCATCH", (char *)NULL);
+	}
+	return TCL_ERROR;
+    }
+    if (state > bbPtr->catchState) {
+	bbPtr->catchState = state;
+	changed = 1;
+    }
+
+    /*
+     * If this block has been visited before, and its state hasn't changed,
+     * we're done with it for now.
+     */
+
+    if (!changed) {
+	return TCL_OK;
+    }
+    bbPtr->catchDepth = catchDepth;
+
+    /*
+     * Determine enclosing catch and 'caught' state for the fallthrough and
+     * the jump target. Default for both is the state of the current block.
+     */
+
+    fallThruEnclosing = enclosing;
+    fallThruState = state;
+    jumpEnclosing = enclosing;
+    jumpState = state;
+
+    /*
+     * TODO: Make sure that the test cases include validating that a natural
+     * loop can't include 'beginCatch' or 'endCatch'
+     */
+
+    if (bbPtr->flags & BB_BEGINCATCH) {
+	/*
+	 * If the block begins a catch, the state for the successor is 'in
+	 * catch'. The jump target is the exception exit, and the state of the
+	 * jump target is 'caught.'
+	 */
+
+	fallThruEnclosing = bbPtr;
+	fallThruState = BBCS_INCATCH;
+	jumpEnclosing = bbPtr;
+	jumpState = BBCS_CAUGHT;
+	++catchDepth;
+    }
+
+    if (bbPtr->flags & BB_ENDCATCH) {
+	/*
+	 * If the block ends a catch, the state for the successor is whatever
+	 * the state was on entry to the catch.
+	 */
+
+	if (enclosing == NULL) {
+	    if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			"endCatch without a corresponding beginCatch", -1));
+		Tcl_SetErrorLine(interp, bbPtr->startLine);
+		Tcl_SetErrorCode(interp, "TCL", "ASSEM", "BADENDCATCH", (char *)NULL);
+	    }
+	    return TCL_ERROR;
+	}
+	fallThruEnclosing = enclosing->enclosingCatch;
+	fallThruState = enclosing->catchState;
+	--catchDepth;
+    }
+
+    /*
+     * Visit any successor blocks with the appropriate exception context
+     */
+
+    result = TCL_OK;
+    if (bbPtr->flags & BB_FALLTHRU) {
+	result = ProcessCatchesInBasicBlock(assemEnvPtr, bbPtr->successor1,
+		fallThruEnclosing, fallThruState, catchDepth);
+    }
+    if (result == TCL_OK && bbPtr->jumpTarget != NULL) {
+	entry = Tcl_FindHashEntry(&assemEnvPtr->labelHash,
+		TclGetString(bbPtr->jumpTarget));
+	jumpTarget = (BasicBlock*)Tcl_GetHashValue(entry);
+	result = ProcessCatchesInBasicBlock(assemEnvPtr, jumpTarget,
+		jumpEnclosing, jumpState, catchDepth);
+    }
+
+    /*
+     * All blocks referenced in a jump table are successors.
+     */
+
+    if (bbPtr->flags & BB_JUMPTABLE) {
+	for (jtEntry = Tcl_FirstHashEntry(&bbPtr->jtPtr->hashTable,&jtSearch);
+		result == TCL_OK && jtEntry != NULL;
+		jtEntry = Tcl_NextHashEntry(&jtSearch)) {
+	    targetLabel = (Tcl_Obj*)Tcl_GetHashValue(jtEntry);
+	    entry = Tcl_FindHashEntry(&assemEnvPtr->labelHash,
+		    TclGetString(targetLabel));
+	    jumpTarget = (BasicBlock*)Tcl_GetHashValue(entry);
+	    result = ProcessCatchesInBasicBlock(assemEnvPtr, jumpTarget,
+		    jumpEnclosing, jumpState, catchDepth);
+	}
+    }
+
+    return result;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * CheckForUnclosedCatches --
+ *
+ *	Checks that a sequence of assembly code has no unclosed catches on
+ *	exit.
+ *
+ * Results:
+ *	Returns a standard Tcl result, with an error message for unclosed
+ *	catches.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+CheckForUnclosedCatches(
+    AssemblyEnv* assemEnvPtr)	/* Assembly environment */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
+				/* Tcl interpreter */
+
+    if (assemEnvPtr->curr_bb->catchState >= BBCS_INCATCH) {
+	if (assemEnvPtr->flags & TCL_EVAL_DIRECT) {
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "catch still active on exit from assembly code", -1));
+	    Tcl_SetErrorLine(interp,
+		    assemEnvPtr->curr_bb->enclosingCatch->startLine);
+	    Tcl_SetErrorCode(interp, "TCL", "ASSEM", "UNCLOSEDCATCH", (char *)NULL);
+	}
+	return TCL_ERROR;
+    }
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * BuildExceptionRanges --
+ *
+ *	Walks through the assembly code and builds exception ranges for the
+ *	catches embedded therein.
+ *
+ * Results:
+ *	Returns a standard Tcl result with an error message in the interpreter
+ *	if anything is unsuccessful.
+ *
+ * Side effects:
+ *	Each contiguous block of code with a given catch exit is assigned an
+ *	exception range at the appropriate level.
+ *	Exception ranges in embedded blocks have their levels corrected and
+ *	collated into the table.
+ *	Blocks that end with 'beginCatch' are associated with the innermost
+ *	exception range of the following block.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+BuildExceptionRanges(
+    AssemblyEnv* assemEnvPtr)	/* Assembly environment */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    BasicBlock* bbPtr;		/* Current basic block */
+    BasicBlock* prevPtr = NULL;	/* Previous basic block */
+    int catchDepth = 0;		/* Current catch depth */
+    int maxCatchDepth = 0;	/* Maximum catch depth in the program */
+    BasicBlock** catches;	/* Stack of catches in progress */
+    int* catchIndices;		/* Indices of the exception ranges of catches
+				 * in progress */
+    int i;
+
+    /*
+     * Determine the max catch depth for the entire assembly script
+     * (excluding embedded eval's and expr's, which will be handled later).
+     */
+
+    for (bbPtr=assemEnvPtr->head_bb; bbPtr != NULL; bbPtr=bbPtr->successor1) {
+	if (bbPtr->catchDepth > maxCatchDepth) {
+	    maxCatchDepth = bbPtr->catchDepth;
+	}
+    }
+
+    /*
+     * Allocate memory for a stack of active catches.
+     */
+
+    catches = (BasicBlock**)Tcl_Alloc(maxCatchDepth * sizeof(BasicBlock*));
+    catchIndices = (int *)Tcl_Alloc(maxCatchDepth * sizeof(int));
+    for (i = 0; i < maxCatchDepth; ++i) {
+	catches[i] = NULL;
+	catchIndices[i] = -1;
+    }
+
+    /*
+     * Walk through the basic blocks and manage exception ranges.
+     */
+
+    for (bbPtr=assemEnvPtr->head_bb; bbPtr != NULL; bbPtr=bbPtr->successor1) {
+	UnstackExpiredCatches(envPtr, bbPtr, catchDepth, catches,
+		catchIndices);
+	LookForFreshCatches(bbPtr, catches);
+	StackFreshCatches(assemEnvPtr, bbPtr, catchDepth, catches,
+		catchIndices);
+
+	/*
+	 * If the last block was a 'begin catch', fill in the exception range.
+	 */
+
+	catchDepth = bbPtr->catchDepth;
+	if (prevPtr != NULL && (prevPtr->flags & BB_BEGINCATCH)) {
+	    TclStoreInt4AtPtr(catchIndices[catchDepth-1],
+		    envPtr->codeStart + bbPtr->startOffset - 4);
+	}
+
+	prevPtr = bbPtr;
+    }
+
+    /* Make sure that all catches are closed */
+
+    if (catchDepth != 0) {
+	Tcl_Panic("unclosed catch at end of code in "
+		"tclAssembly.c:BuildExceptionRanges, can't happen");
+    }
+
+    /* Free temp storage */
+
+    Tcl_Free(catchIndices);
+    Tcl_Free(catches);
+
+    return TCL_OK;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * UnstackExpiredCatches --
+ *
+ *	Unstacks and closes the exception ranges for any catch contexts that
+ *	were active in the previous basic block but are inactive in the
+ *	current one.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+UnstackExpiredCatches(
+    CompileEnv* envPtr,		/* Compilation environment */
+    BasicBlock* bbPtr,		/* Basic block being processed */
+    int catchDepth,		/* Depth of nesting of catches prior to entry
+				 * to this block */
+    BasicBlock** catches,	/* Array of catch contexts */
+    int* catchIndices)		/* Indices of the exception ranges
+				 * corresponding to the catch contexts */
+{
+    ExceptionRange* range;	/* Exception range for a specific catch */
+    BasicBlock* block;		/* Catch block being examined */
+    BasicBlockCatchState catchState;
+				/* State of the code relative to the catch
+				 * block being examined ("in catch" or
+				 * "caught"). */
+
+    /*
+     * Unstack any catches that are deeper than the nesting level of the basic
+     * block being entered.
+     */
+
+    while (catchDepth > bbPtr->catchDepth) {
+	--catchDepth;
+	if (catches[catchDepth] != NULL) {
+	    range = envPtr->exceptArrayPtr + catchIndices[catchDepth];
+	    range->numCodeBytes = bbPtr->startOffset - range->codeOffset;
+	    catches[catchDepth] = NULL;
+	    catchIndices[catchDepth] = -1;
+	}
+    }
+
+    /*
+     * Unstack any catches that don't match the basic block being entered,
+     * either because they are no longer part of the context, or because the
+     * context has changed from INCATCH to CAUGHT.
+     */
+
+    catchState = bbPtr->catchState;
+    block = bbPtr->enclosingCatch;
+    while (catchDepth > 0) {
+	--catchDepth;
+	if (catches[catchDepth] != NULL) {
+	    if (catches[catchDepth] != block || catchState >= BBCS_CAUGHT) {
+		range = envPtr->exceptArrayPtr + catchIndices[catchDepth];
+		range->numCodeBytes = bbPtr->startOffset - range->codeOffset;
+		catches[catchDepth] = NULL;
+		catchIndices[catchDepth] = -1;
+	    }
+	    catchState = block->catchState;
+	    block = block->enclosingCatch;
+	}
+    }
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * LookForFreshCatches --
+ *
+ *	Determines whether a basic block being entered needs any exception
+ *	ranges that are not already stacked.
+ *
+ * Does not create the ranges: this procedure iterates from the innermost
+ * catch outward, but exception ranges must be created from the outermost
+ * catch inward.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+LookForFreshCatches(
+    BasicBlock* bbPtr,		/* Basic block being entered */
+    BasicBlock** catches)	/* Array of catch contexts that are already
+				 * entered */
+{
+    BasicBlockCatchState catchState;
+				/* State ("in catch" or "caught") of the
+				 * current catch. */
+    BasicBlock* block;		/* Current enclosing catch */
+    int catchDepth;		/* Nesting depth of the current catch */
+
+    catchState = bbPtr->catchState;
+    block = bbPtr->enclosingCatch;
+    catchDepth = bbPtr->catchDepth;
+    while (catchDepth > 0) {
+	--catchDepth;
+	if (catches[catchDepth] != block && catchState < BBCS_CAUGHT) {
+	    catches[catchDepth] = block;
+	}
+	catchState = block->catchState;
+	block = block->enclosingCatch;
+    }
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * StackFreshCatches --
+ *
+ *	Make ExceptionRange records for any catches that are in the basic
+ *	block being entered and were not in the previous basic block.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+StackFreshCatches(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    BasicBlock* bbPtr,		/* Basic block being processed */
+    int catchDepth,		/* Depth of nesting of catches prior to entry
+				 * to this block */
+    BasicBlock** catches,	/* Array of catch contexts */
+    int* catchIndices)		/* Indices of the exception ranges
+				 * corresponding to the catch contexts */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    ExceptionRange* range;	/* Exception range for a specific catch */
+    BasicBlock* block;		/* Catch block being examined */
+    BasicBlock* errorExit;	/* Error exit from the catch block */
+    Tcl_HashEntry* entryPtr;
+
+    catchDepth = 0;
+
+    /*
+     * Iterate through the enclosing catch blocks from the outside in,
+     * looking for ones that don't have exception ranges (and are uncaught)
+     */
+
+    for (catchDepth = 0; catchDepth < bbPtr->catchDepth; ++catchDepth) {
+	if (catchIndices[catchDepth] == -1 && catches[catchDepth] != NULL) {
+	    /*
+	     * Create an exception range for a block that needs one.
+	     */
+
+	    block = catches[catchDepth];
+	    catchIndices[catchDepth] =
+		    TclCreateExceptRange(CATCH_EXCEPTION_RANGE, envPtr);
+	    range = envPtr->exceptArrayPtr + catchIndices[catchDepth];
+	    range->nestingLevel = envPtr->exceptDepth + catchDepth;
+	    envPtr->maxExceptDepth=
+		    TclMax(range->nestingLevel + 1, envPtr->maxExceptDepth);
+	    range->codeOffset = bbPtr->startOffset;
+
+	    entryPtr = Tcl_FindHashEntry(&assemEnvPtr->labelHash,
+		    TclGetString(block->jumpTarget));
+	    if (entryPtr == NULL) {
+		Tcl_Panic("undefined label in tclAssembly.c:"
+			"BuildExceptionRanges, can't happen");
+	    }
+
+	    errorExit = (BasicBlock*)Tcl_GetHashValue(entryPtr);
+	    range->catchOffset = errorExit->startOffset;
+	}
+    }
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * RestoreEmbeddedExceptionRanges --
+ *
+ *	Processes an assembly script, replacing any exception ranges that
+ *	were present in embedded code.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+RestoreEmbeddedExceptionRanges(
+    AssemblyEnv* assemEnvPtr)	/* Assembly environment */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    BasicBlock* bbPtr;		/* Current basic block */
+    int rangeBase;		/* Base of the foreign exception ranges when
+				 * they are reinstalled */
+    size_t rangeIndex;		/* Index of the current foreign exception
+				 * range as reinstalled */
+    ExceptionRange* range;	/* Current foreign exception range */
+    unsigned char opcode;	/* Current instruction's opcode */
+    int catchIndex;		/* Index of the exception range to which the
+				 * current instruction refers */
+    int i;
+
+    /*
+     * Walk the basic blocks looking for exceptions in embedded scripts.
+     */
+
+    for (bbPtr = assemEnvPtr->head_bb;
+	    bbPtr != NULL;
+	    bbPtr = bbPtr->successor1) {
+	if (bbPtr->foreignExceptionCount != 0) {
+	    /*
+	     * Reinstall the embedded exceptions and track their nesting level
+	     */
+
+	    rangeBase = envPtr->exceptArrayNext;
+	    for (i = 0; i < bbPtr->foreignExceptionCount; ++i) {
+		range = bbPtr->foreignExceptions + i;
+		rangeIndex = TclCreateExceptRange(range->type, envPtr);
+		range->nestingLevel += envPtr->exceptDepth + bbPtr->catchDepth;
+		memcpy(envPtr->exceptArrayPtr + rangeIndex, range,
+			sizeof(ExceptionRange));
+		if (range->nestingLevel + 1 >= envPtr->maxExceptDepth + 1) {
+		    envPtr->maxExceptDepth = range->nestingLevel + 1;
+		}
+	    }
+
+	    /*
+	     * Walk through the bytecode of the basic block, and relocate
+	     * INST_BEGIN_CATCH4 instructions to the new locations
+	     */
+
+	    i = bbPtr->startOffset;
+	    while (i < bbPtr->successor1->startOffset) {
+		opcode = envPtr->codeStart[i];
+		if (opcode == INST_BEGIN_CATCH4) {
+		    catchIndex = TclGetUInt4AtPtr(envPtr->codeStart + i + 1);
+		    if (catchIndex >= bbPtr->foreignExceptionBase
+			    && catchIndex < (bbPtr->foreignExceptionBase +
+			    bbPtr->foreignExceptionCount)) {
+			catchIndex -= bbPtr->foreignExceptionBase;
+			catchIndex += rangeBase;
+			TclStoreInt4AtPtr(catchIndex, envPtr->codeStart+i+1);
+		    }
+		}
+		i += tclInstructionTable[opcode].numBytes;
+	    }
+	}
+    }
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * ResetVisitedBasicBlocks --
+ *
+ *	Turns off the 'visited' flag in all basic blocks at the conclusion
+ *	of a pass.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+ResetVisitedBasicBlocks(
+    AssemblyEnv* assemEnvPtr)	/* Assembly environment */
+{
+    BasicBlock* block;
+
+    for (block = assemEnvPtr->head_bb; block != NULL;
+	    block = block->successor1) {
+	block->flags &= ~BB_VISITED;
+    }
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * AddBasicBlockRangeToErrorInfo --
+ *
+ *	Updates the error info of the Tcl interpreter to show a given basic
+ *	block in the code.
+ *
+ * This procedure is used to label the callstack with source location
+ * information when reporting an error in stack checking.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+AddBasicBlockRangeToErrorInfo(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    BasicBlock* bbPtr)		/* Basic block in which the error is found */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    Tcl_Interp* interp = (Tcl_Interp*) envPtr->iPtr;
+				/* Tcl interpreter */
+    Tcl_Obj* lineNo;		/* Line number in the source */
+
+    Tcl_AddErrorInfo(interp, "\n    in assembly code between lines ");
+    TclNewIntObj(lineNo, bbPtr->startLine);
+    Tcl_IncrRefCount(lineNo);
+    Tcl_AppendObjToErrorInfo(interp, lineNo);
+    Tcl_AddErrorInfo(interp, " and ");
+    if (bbPtr->successor1 != NULL) {
+	TclSetIntObj(lineNo, bbPtr->successor1->startLine);
+	Tcl_AppendObjToErrorInfo(interp, lineNo);
+    } else {
+	Tcl_AddErrorInfo(interp, "end of assembly code");
+    }
+    Tcl_DecrRefCount(lineNo);
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * DupAssembleCodeInternalRep --
+ *
+ *	Part of the Tcl object type implementation for Tcl assembly language
+ *	bytecode. We do not copy the bytecode internalrep. Instead, we return
+ *	without setting copyPtr->typePtr, so the copy is a plain string copy
+ *	of the assembly source, and if it is to be used as a compiled
+ *	expression, it will need to be reprocessed.
+ *
+ *	This makes sense, because with Tcl's copy-on-write practices, the
+ *	usual (only?) time Tcl_DuplicateObj() will be called is when the copy
+ *	is about to be modified, which would invalidate any copied bytecode
+ *	anyway. The only reason it might make sense to copy the bytecode is if
+ *	we had some modifying routines that operated directly on the internalrep,
+ *	as we do for lists and dicts.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+DupAssembleCodeInternalRep(
+    TCL_UNUSED(Tcl_Obj *),
+    TCL_UNUSED(Tcl_Obj *))
+{
+    return;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * FreeAssembleCodeInternalRep --
+ *
+ *	Part of the Tcl object type implementation for Tcl expression
+ *	bytecode. Frees the storage allocated to hold the internal rep, unless
+ *	ref counts indicate bytecode execution is still in progress.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	May free allocated memory. Leaves objPtr untyped.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+FreeAssembleCodeInternalRep(
+    Tcl_Obj *objPtr)
+{
+    ByteCode *codePtr;
+
+    ByteCodeGetInternalRep(objPtr, &assembleCodeType, codePtr);
+    assert(codePtr != NULL);
+
+    TclReleaseByteCode(codePtr);
+}
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * End:
+ */
diff --git a/generic/tclAsync.c b/generic/tclAsync.c
index ca18f5e..7a5b862 100644
--- a/generic/tclAsync.c
+++ b/generic/tclAsync.c
@@ -5,8 +5,8 @@
  *	in a safe way. The code here doesn't actually handle signals, though.
  *	This code is based on proposals made by Mark Diekhans and Don Libes.
  *
- * Copyright (c) 1993 The Regents of the University of California.
- * Copyright (c) 1994 Sun Microsystems, Inc.
+ * Copyright © 1993 The Regents of the University of California.
+ * Copyright © 1994 Sun Microsystems, Inc.
  *
  * See the file "license.terms" for information on usage and redistribution of
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
@@ -25,12 +25,12 @@ typedef struct AsyncHandler {
     int ready;			/* Non-zero means this handler should be
 				 * invoked in the next call to
 				 * Tcl_AsyncInvoke. */
-    struct AsyncHandler *nextPtr;
-				/* Next in list of all handlers for the
-				 * process. */
+    struct AsyncHandler *nextPtr, *prevPtr;
+				/* Next, previous in list of all handlers
+				 * for the process. */
     Tcl_AsyncProc *proc;	/* Procedure to call when handler is
 				 * invoked. */
-    ClientData clientData;	/* Value to pass to handler when it is
+    void *clientData;		/* Value to pass to handler when it is
 				 * invoked. */
     struct ThreadSpecificData *originTsd;
 				/* Used in Tcl_AsyncMark to modify thread-
@@ -38,16 +38,10 @@ typedef struct AsyncHandler {
 				 * associated to. */
     Tcl_ThreadId originThrdId;	/* Origin thread where this token was created
 				 * and where it will be yielded. */
+    void *notifierData;		/* Platform notifier data or NULL. */
 } AsyncHandler;
 
 typedef struct ThreadSpecificData {
-    /*
-     * The variables below maintain a list of all existing handlers specific
-     * to the calling thread.
-     */
-    AsyncHandler *firstHandler;	/* First handler defined for process, or NULL
-				 * if none. */
-    AsyncHandler *lastHandler;	/* Last handler or NULL. */
     int asyncReady;		/* This is set to 1 whenever a handler becomes
 				 * ready and it is cleared to zero whenever
 				 * Tcl_AsyncInvoke is called. It can be
@@ -58,24 +52,29 @@ typedef struct ThreadSpecificData {
 				 * currently working. If so then we won't set
 				 * asyncReady again until Tcl_AsyncInvoke
 				 * returns. */
-    Tcl_Mutex asyncMutex;	/* Thread-specific AsyncHandler linked-list
-				 * lock */
 } ThreadSpecificData;
 static Tcl_ThreadDataKey dataKey;
+
+/* Mutex to protect linked-list of AsyncHandlers in the process. */
+TCL_DECLARE_MUTEX(asyncMutex)
+
+/* List of all existing handlers of the process. */
+static AsyncHandler *firstHandler = NULL;
+static AsyncHandler *lastHandler = NULL;
 
 /*
  *----------------------------------------------------------------------
  *
  * TclFinalizeAsync --
  *
- *	Finalizes the mutex in the thread local data structure for the async
+ *	Finalizes the thread local data structure for the async
  *	subsystem.
  *
  * Results:
  *	None.
  *
  * Side effects:
- *	Forgets knowledge of the mutex should it have been created.
+ *	Cleans up left-over async handlers for the calling thread.
  *
  *----------------------------------------------------------------------
  */
@@ -83,10 +82,40 @@ static Tcl_ThreadDataKey dataKey;
 void
 TclFinalizeAsync(void)
 {
-    ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
+    AsyncHandler *token, *toDelete = NULL;
+    Tcl_ThreadId self = Tcl_GetCurrentThread();
+
+    Tcl_MutexLock(&asyncMutex);
+    for (token = firstHandler; token != NULL;) {
+	AsyncHandler *nextToken = token->nextPtr;
 
-    if (tsdPtr->asyncMutex != NULL) {
-	Tcl_MutexFinalize(&tsdPtr->asyncMutex);
+	if (token->originThrdId == self) {
+	    if (token->prevPtr == NULL) {
+		firstHandler = token->nextPtr;
+		if (firstHandler == NULL) {
+		    lastHandler = NULL;
+		    break;
+		}
+	    } else {
+		token->prevPtr->nextPtr = token->nextPtr;
+		if (token == lastHandler) {
+		    lastHandler = token->prevPtr;
+		}
+	    }
+	    if (token->nextPtr != NULL) {
+		token->nextPtr->prevPtr = token->prevPtr;
+	    }
+	    token->nextPtr = toDelete;
+	    token->prevPtr = NULL;
+	    toDelete = token;
+	}
+	token = nextToken;
+    }
+    Tcl_MutexUnlock(&asyncMutex);
+    while (toDelete != NULL) {
+	token = toDelete;
+	toDelete = toDelete->nextPtr;
+	Tcl_Free(token);
     }
 }
 
@@ -113,27 +142,30 @@ Tcl_AsyncHandler
 Tcl_AsyncCreate(
     Tcl_AsyncProc *proc,	/* Procedure to call when handler is
 				 * invoked. */
-    ClientData clientData)	/* Argument to pass to handler. */
+    void *clientData)		/* Argument to pass to handler. */
 {
     AsyncHandler *asyncPtr;
     ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
 
-    asyncPtr = (AsyncHandler *) ckalloc(sizeof(AsyncHandler));
+    asyncPtr = (AsyncHandler*)Tcl_Alloc(sizeof(AsyncHandler));
     asyncPtr->ready = 0;
     asyncPtr->nextPtr = NULL;
+    asyncPtr->prevPtr = NULL;
     asyncPtr->proc = proc;
     asyncPtr->clientData = clientData;
     asyncPtr->originTsd = tsdPtr;
     asyncPtr->originThrdId = Tcl_GetCurrentThread();
+    asyncPtr->notifierData = TclpNotifierData();
 
-    Tcl_MutexLock(&tsdPtr->asyncMutex);
-    if (tsdPtr->firstHandler == NULL) {
-	tsdPtr->firstHandler = asyncPtr;
+    Tcl_MutexLock(&asyncMutex);
+    if (firstHandler == NULL) {
+	firstHandler = asyncPtr;
     } else {
-	tsdPtr->lastHandler->nextPtr = asyncPtr;
+	asyncPtr->prevPtr = lastHandler;
+	lastHandler->nextPtr = asyncPtr;
     }
-    tsdPtr->lastHandler = asyncPtr;
-    Tcl_MutexUnlock(&tsdPtr->asyncMutex);
+    lastHandler = asyncPtr;
+    Tcl_MutexUnlock(&asyncMutex);
     return (Tcl_AsyncHandler) asyncPtr;
 }
 
@@ -158,17 +190,89 @@ Tcl_AsyncCreate(
 
 void
 Tcl_AsyncMark(
-    Tcl_AsyncHandler async)		/* Token for handler. */
+    Tcl_AsyncHandler async)	/* Token for handler. */
 {
     AsyncHandler *token = (AsyncHandler *) async;
 
-    Tcl_MutexLock(&token->originTsd->asyncMutex);
+    Tcl_MutexLock(&asyncMutex);
     token->ready = 1;
     if (!token->originTsd->asyncActive) {
 	token->originTsd->asyncReady = 1;
 	Tcl_ThreadAlert(token->originThrdId);
     }
-    Tcl_MutexUnlock(&token->originTsd->asyncMutex);
+    Tcl_MutexUnlock(&asyncMutex);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Tcl_AsyncMarkFromSignal --
+ *
+ *	This procedure is similar to Tcl_AsyncMark but must be used
+ *	in POSIX signal contexts. In addition to Tcl_AsyncMark the
+ *	signal number is passed.
+ *
+ * Results:
+ *	True, when the handler will be marked, false otherwise.
+ *
+ * Side effects:
+ *	The handler gets marked for invocation later.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+Tcl_AsyncMarkFromSignal(
+    Tcl_AsyncHandler async,	/* Token for handler. */
+    int sigNumber)		/* Signal number. */
+{
+#if TCL_THREADS
+    AsyncHandler *token = (AsyncHandler *) async;
+
+    return TclAsyncNotifier(sigNumber, token->originThrdId,
+	    token->notifierData, &token->ready, -1);
+#else
+    (void)sigNumber;
+
+    Tcl_AsyncMark(async);
+    return 1;
+#endif
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclAsyncMarkFromNotifier --
+ *
+ *	This procedure is called from the notifier thread and
+ *	invokes Tcl_AsyncMark for specifically marked handlers.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Handlers get marked for invocation later.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TclAsyncMarkFromNotifier(void)
+{
+    AsyncHandler *token;
+
+    Tcl_MutexLock(&asyncMutex);
+    for (token = firstHandler; token != NULL;
+	    token = token->nextPtr) {
+	if (token->ready == -1) {
+	    token->ready = 1;
+	    if (!token->originTsd->asyncActive) {
+		token->originTsd->asyncReady = 1;
+		Tcl_ThreadAlert(token->originThrdId);
+	    }
+	}
+    }
+    Tcl_MutexUnlock(&asyncMutex);
 }
 
 /*
@@ -200,11 +304,12 @@ Tcl_AsyncInvoke(
 {
     AsyncHandler *asyncPtr;
     ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
+    Tcl_ThreadId self = Tcl_GetCurrentThread();
 
-    Tcl_MutexLock(&tsdPtr->asyncMutex);
+    Tcl_MutexLock(&asyncMutex);
 
     if (tsdPtr->asyncReady == 0) {
-	Tcl_MutexUnlock(&tsdPtr->asyncMutex);
+	Tcl_MutexUnlock(&asyncMutex);
 	return code;
     }
     tsdPtr->asyncReady = 0;
@@ -224,8 +329,11 @@ Tcl_AsyncInvoke(
      */
 
     while (1) {
-	for (asyncPtr = tsdPtr->firstHandler; asyncPtr != NULL;
+	for (asyncPtr = firstHandler; asyncPtr != NULL;
 		asyncPtr = asyncPtr->nextPtr) {
+	    if (asyncPtr->originThrdId != self) {
+		continue;
+	    }
 	    if (asyncPtr->ready) {
 		break;
 	    }
@@ -234,12 +342,12 @@ Tcl_AsyncInvoke(
 	    break;
 	}
 	asyncPtr->ready = 0;
-	Tcl_MutexUnlock(&tsdPtr->asyncMutex);
-	code = (*asyncPtr->proc)(asyncPtr->clientData, interp, code);
-	Tcl_MutexLock(&tsdPtr->asyncMutex);
+	Tcl_MutexUnlock(&asyncMutex);
+	code = asyncPtr->proc(asyncPtr->clientData, interp, code);
+	Tcl_MutexLock(&asyncMutex);
     }
     tsdPtr->asyncActive = 0;
-    Tcl_MutexUnlock(&tsdPtr->asyncMutex);
+    Tcl_MutexUnlock(&asyncMutex);
     return code;
 }
 
@@ -260,7 +368,7 @@ Tcl_AsyncInvoke(
  *	Failure to locate the handler in current thread private list
  *	of async handlers will result in panic; exception: the list
  *	is already empty (potential trouble?).
- *	Consequently, threads should create and delete handlers 
+ *	Consequently, threads should create and delete handlers
  *	themselves.  I.e. a handler created by one should not be
  *	deleted by some other thread.
  *
@@ -269,11 +377,9 @@ Tcl_AsyncInvoke(
 
 void
 Tcl_AsyncDelete(
-    Tcl_AsyncHandler async)		/* Token for handler to delete. */
+    Tcl_AsyncHandler async)	/* Token for handler to delete. */
 {
-    ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
     AsyncHandler *asyncPtr = (AsyncHandler *) async;
-    AsyncHandler *prevPtr, *thisPtr;
 
     /*
      * Assure early handling of the constraint
@@ -283,34 +389,23 @@ Tcl_AsyncDelete(
 	Tcl_Panic("Tcl_AsyncDelete: async handler deleted by the wrong thread");
     }
 
-    /*
-     * If we come to this point when TSD's for the current
-     * thread have already been garbage-collected, we are
-     * in the _serious_ trouble. OTOH, we tolerate calling
-     * with already cleaned-up handler list (should we?).
-     */
-
-    Tcl_MutexLock(&tsdPtr->asyncMutex);
-    if (tsdPtr->firstHandler != NULL) {
-	prevPtr = thisPtr = tsdPtr->firstHandler;
-	while (thisPtr != NULL && thisPtr != asyncPtr) {
-	    prevPtr = thisPtr;
-	    thisPtr = thisPtr->nextPtr;
-	}
-	if (thisPtr == NULL) {
-	    Tcl_Panic("Tcl_AsyncDelete: cannot find async handler");
+    Tcl_MutexLock(&asyncMutex);
+    if (asyncPtr->prevPtr == NULL) {
+	firstHandler = asyncPtr->nextPtr;
+	if (firstHandler == NULL) {
+	    lastHandler = NULL;
 	}
-	if (asyncPtr == tsdPtr->firstHandler) {
-	    tsdPtr->firstHandler = asyncPtr->nextPtr;
-	} else {
-	    prevPtr->nextPtr = asyncPtr->nextPtr;
-	}
-	if (asyncPtr == tsdPtr->lastHandler) {
-	    tsdPtr->lastHandler = prevPtr;
+    } else {
+	asyncPtr->prevPtr->nextPtr = asyncPtr->nextPtr;
+	if (asyncPtr == lastHandler) {
+	    lastHandler = asyncPtr->prevPtr;
 	}
     }
-    Tcl_MutexUnlock(&tsdPtr->asyncMutex);
-    ckfree((char *) asyncPtr);
+    if (asyncPtr->nextPtr != NULL) {
+	asyncPtr->nextPtr->prevPtr = asyncPtr->prevPtr;
+    }
+    Tcl_MutexUnlock(&asyncMutex);
+    Tcl_Free(asyncPtr);
 }
 
 /*
diff --git a/generic/tclBasic.c b/generic/tclBasic.c
index e37ef13..e82c4d9 100644
--- a/generic/tclBasic.c
+++ b/generic/tclBasic.c
@@ -5,22 +5,101 @@
  *	including interpreter creation and deletion, command creation and
  *	deletion, and command/script execution.
  *
- * Copyright (c) 1987-1994 The Regents of the University of California.
- * Copyright (c) 1994-1997 Sun Microsystems, Inc.
- * Copyright (c) 1998-1999 by Scriptics Corporation.
- * Copyright (c) 2001, 2002 by Kevin B. Kenny.  All rights reserved.
- * Copyright (c) 2007 Daniel A. Steffen <das@users.sourceforge.net>
+ * Copyright © 1987-1994 The Regents of the University of California.
+ * Copyright © 1994-1997 Sun Microsystems, Inc.
+ * Copyright © 1998-1999 Scriptics Corporation.
+ * Copyright © 2001, 2002 Kevin B. Kenny.  All rights reserved.
+ * Copyright © 2007 Daniel A. Steffen <das@users.sourceforge.net>
+ * Copyright © 2006-2008 Joe Mistachkin.  All rights reserved.
+ * Copyright © 2008 Miguel Sofer <msofer@users.sourceforge.net>
  *
  * See the file "license.terms" for information on usage and redistribution of
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
  */
 
 #include "tclInt.h"
+#include "tclOOInt.h"
 #include "tclCompile.h"
-#include <float.h>
-#include <limits.h>
+#include "tclTomMath.h"
 #include <math.h>
-#include "tommath.h"
+#include <assert.h>
+
+/*
+ * TCL_FPCLASSIFY_MODE:
+ *	0  - fpclassify
+ *	1  - _fpclass
+ *	2  - simulate
+ *	3  - __builtin_fpclassify
+ */
+
+#ifndef TCL_FPCLASSIFY_MODE
+#if defined(__MINGW32__) && defined(_X86_) /* mingw 32-bit */
+/*
+ * MINGW x86 (tested up to gcc 8.1) seems to have a bug in fpclassify,
+ * [fpclassify 1e-314], x86 => normal, x64 => subnormal, so switch to using a
+ * version using a compiler built-in.
+ */
+#define TCL_FPCLASSIFY_MODE 1
+#elif defined(fpclassify)		/* fpclassify */
+/*
+ * This is the C99 standard.
+ */
+#include <float.h>
+#define TCL_FPCLASSIFY_MODE 0
+#elif defined(_FPCLASS_NN)		/* _fpclass */
+/*
+ * This case handles newer MSVC on Windows, which doesn't have the standard
+ * operation but does have something that can tell us the same thing.
+ */
+#define TCL_FPCLASSIFY_MODE 1
+#else	/* !fpclassify && !_fpclass (older MSVC), simulate */
+/*
+ * Older MSVC on Windows. So broken that we just have to do it our way. This
+ * assumes that we're on x86 (or at least a system with classic little-endian
+ * double layout and a 32-bit 'int' type).
+ */
+#define TCL_FPCLASSIFY_MODE 2
+#endif /* !fpclassify */
+/* actually there is no fallback to builtin fpclassify */
+#endif /* !TCL_FPCLASSIFY_MODE */
+
+/*
+ * Bug 7371b6270b: to check C call stack depth, prefer an approach which is
+ * compatible with AddressSanitizer (ASan) use-after-return detection.
+ */
+
+#if defined(_MSC_VER)
+#include <intrin.h> /* for _AddressOfReturnAddress() */
+#endif
+
+/*
+ * As suggested by
+ * https://clang.llvm.org/docs/LanguageExtensions.html#has-builtin
+ */
+#ifndef __has_builtin
+#define __has_builtin(x) 0 /* for non-clang compilers */
+#endif
+
+void *
+TclGetCStackPtr(void)
+{
+#if defined( __GNUC__ ) || __has_builtin(__builtin_frame_address)
+    return __builtin_frame_address(0);
+#elif defined(_MSC_VER)
+    return _AddressOfReturnAddress();
+#else
+    ptrdiff_t unused = 0;
+    /*
+     * LLVM recommends using volatile:
+     * https://github.com/llvm/llvm-project/blob/llvmorg-10.0.0-rc1/clang/lib/Basic/Stack.cpp#L31
+     */
+    ptrdiff_t *volatile stackLevel = &unused;
+    return (void *)stackLevel;
+#endif
+}
+
+#define INTERP_STACK_INITIAL_SIZE 2000
+#define CORO_STACK_INITIAL_SIZE    200
 
 /*
  * Determine whether we're using IEEE floating point
@@ -33,71 +112,151 @@
 #endif
 
 /*
- * The following structure defines the client data for a math function
- * registered with Tcl_CreateMathFunc
+ * This is the script cancellation struct and hash table. The hash table is
+ * used to keep track of the information necessary to process script
+ * cancellation requests, including the original interp, asynchronous handler
+ * tokens (created by Tcl_AsyncCreate), and the clientData and flags arguments
+ * passed to Tcl_CancelEval on a per-interp basis. The cancelLock mutex is
+ * used for protecting calls to Tcl_CancelEval as well as protecting access to
+ * the hash table below.
  */
 
-typedef struct OldMathFuncData {
-    Tcl_MathProc *proc;		/* Handler function */
-    int numArgs;		/* Number of args expected */
-    Tcl_ValueType *argTypes;	/* Types of the args */
-    ClientData clientData;	/* Client data for the handler function */
-} OldMathFuncData;
+typedef struct {
+    Tcl_Interp *interp;		/* Interp this struct belongs to. */
+    Tcl_AsyncHandler async;	/* Async handler token for script
+				 * cancellation. */
+    char *result;		/* The script cancellation result or NULL for
+				 * a default result. */
+    Tcl_Size length;		/* Length of the above error message. */
+    void *clientData;		/* Not used. */
+    int flags;			/* Additional flags */
+} CancelInfo;
+static Tcl_HashTable cancelTable;
+static int cancelTableInitialized = 0;	/* 0 means not yet initialized. */
+TCL_DECLARE_MUTEX(cancelLock);
 
 /*
+ * Table used to map command implementation functions to a human-readable type
+ * name, for [info type]. The keys in the table are function addresses, and
+ * the values in the table are static char* containing strings in Tcl's
+ * internal encoding (almost UTF-8).
+ */
+
+static Tcl_HashTable commandTypeTable;
+static int commandTypeInit = 0;
+TCL_DECLARE_MUTEX(commandTypeLock);
+
+/*
+ * Declarations for managing contexts for non-recursive coroutines. Contexts
+ * are used to save the evaluation state between NR calls to each coro.
+ */
+
+#define SAVE_CONTEXT(context)				\
+    (context).framePtr = iPtr->framePtr;		\
+    (context).varFramePtr = iPtr->varFramePtr;		\
+    (context).cmdFramePtr = iPtr->cmdFramePtr;		\
+    (context).lineLABCPtr = iPtr->lineLABCPtr
+
+#define RESTORE_CONTEXT(context)			\
+    iPtr->framePtr = (context).framePtr;		\
+    iPtr->varFramePtr = (context).varFramePtr;		\
+    iPtr->cmdFramePtr = (context).cmdFramePtr;		\
+    iPtr->lineLABCPtr = (context).lineLABCPtr
+
+/*
  * Static functions in this file:
  */
 
-static char *	CallCommandTraces(Interp *iPtr, Command *cmdPtr,
-		    const char *oldName, const char *newName, int flags);
-static int	CheckDoubleResult(Tcl_Interp *interp, double dResult);
-static void	DeleteInterpProc(Tcl_Interp *interp);
-static void	DeleteOpCmdClientData(ClientData clientData);
-static Tcl_Obj *GetCommandSource(Interp *iPtr, const char *command,
-	            int numChars, int objc, Tcl_Obj *const objv[]);
-static void	ProcessUnexpectedResult(Tcl_Interp *interp, int returnCode);
-static int	OldMathFuncProc(ClientData clientData, Tcl_Interp *interp,
-		    int argc, Tcl_Obj *const *objv);
-static void	OldMathFuncDeleteProc(ClientData clientData);
-static int	ExprAbsFunc(ClientData clientData, Tcl_Interp *interp,
-		    int argc, Tcl_Obj *const *objv);
-static int	ExprBinaryFunc(ClientData clientData, Tcl_Interp *interp,
-		    int argc, Tcl_Obj *const *objv);
-static int	ExprBoolFunc(ClientData clientData, Tcl_Interp *interp,
-		    int argc, Tcl_Obj *const *objv);
-static int	ExprCeilFunc(ClientData clientData, Tcl_Interp *interp,
-		    int argc, Tcl_Obj *const *objv);
-static int	ExprDoubleFunc(ClientData clientData, Tcl_Interp *interp,
-		    int argc, Tcl_Obj *const *objv);
-static int	ExprEntierFunc(ClientData clientData, Tcl_Interp *interp,
-		    int argc, Tcl_Obj *const *objv);
-static int	ExprFloorFunc(ClientData clientData, Tcl_Interp *interp,
-		    int argc, Tcl_Obj *const *objv);
-static int	ExprIntFunc(ClientData clientData, Tcl_Interp *interp,
-		    int argc, Tcl_Obj *const *objv);
-static int	ExprIsqrtFunc(ClientData clientData, Tcl_Interp *interp,
-		    int argc, Tcl_Obj *const *objv);
-static int	ExprRandFunc(ClientData clientData, Tcl_Interp *interp,
-		    int argc, Tcl_Obj *const *objv);
-static int	ExprRoundFunc(ClientData clientData, Tcl_Interp *interp,
-		    int argc, Tcl_Obj *const *objv);
-static int	ExprSqrtFunc(ClientData clientData, Tcl_Interp *interp,
-		    int argc, Tcl_Obj *const *objv);
-static int	ExprSrandFunc(ClientData clientData, Tcl_Interp *interp,
-		    int argc, Tcl_Obj *const *objv);
-static int	ExprUnaryFunc(ClientData clientData, Tcl_Interp *interp,
-		    int argc, Tcl_Obj *const *objv);
-static int	ExprWideFunc(ClientData clientData, Tcl_Interp *interp,
-		    int argc, Tcl_Obj *const *objv);
-static void	MathFuncWrongNumArgs(Tcl_Interp *interp, int expected,
-		    int actual, Tcl_Obj *const *objv);
+static Tcl_ObjCmdProc	BadEnsembleSubcommand;
+static char *		CallCommandTraces(Interp *iPtr, Command *cmdPtr,
+			    const char *oldName, const char *newName,
+			    int flags);
+static int		CancelEvalProc(void *clientData,
+			    Tcl_Interp *interp, int code);
+static int		CheckDoubleResult(Tcl_Interp *interp, double dResult);
+static void		DeleteCoroutine(void *clientData);
+static Tcl_FreeProc	DeleteInterpProc;
+static void		DeleteOpCmdClientData(void *clientData);
 #ifdef USE_DTRACE
-static int	DTraceObjCmd(ClientData dummy, Tcl_Interp *interp, int objc,
-		    Tcl_Obj *const objv[]);
-#endif
+static Tcl_ObjCmdProc	DTraceObjCmd;
+static Tcl_NRPostProc	DTraceCmdReturn;
+#else
+#   define DTraceCmdReturn	NULL
+#endif /* USE_DTRACE */
+static Tcl_ObjCmdProc	InvokeStringCommand;
+static Tcl_ObjCmdProc	ExprAbsFunc;
+static Tcl_ObjCmdProc	ExprBinaryFunc;
+static Tcl_ObjCmdProc	ExprBoolFunc;
+static Tcl_ObjCmdProc	ExprCeilFunc;
+static Tcl_ObjCmdProc	ExprDoubleFunc;
+static Tcl_ObjCmdProc	ExprFloorFunc;
+static Tcl_ObjCmdProc	ExprIntFunc;
+static Tcl_ObjCmdProc	ExprIsqrtFunc;
+static Tcl_ObjCmdProc	ExprIsFiniteFunc;
+static Tcl_ObjCmdProc	ExprIsInfinityFunc;
+static Tcl_ObjCmdProc	ExprIsNaNFunc;
+static Tcl_ObjCmdProc	ExprIsNormalFunc;
+static Tcl_ObjCmdProc	ExprIsSubnormalFunc;
+static Tcl_ObjCmdProc	ExprIsUnorderedFunc;
+static Tcl_ObjCmdProc	ExprMaxFunc;
+static Tcl_ObjCmdProc	ExprMinFunc;
+static Tcl_ObjCmdProc	ExprRandFunc;
+static Tcl_ObjCmdProc	ExprRoundFunc;
+static Tcl_ObjCmdProc	ExprSqrtFunc;
+static Tcl_ObjCmdProc	ExprSrandFunc;
+static Tcl_ObjCmdProc	ExprUnaryFunc;
+static Tcl_ObjCmdProc	ExprWideFunc;
+static Tcl_ObjCmdProc	FloatClassifyObjCmd;
+static void		MathFuncWrongNumArgs(Tcl_Interp *interp, Tcl_Size expected,
+			    Tcl_Size actual, Tcl_Obj *const *objv);
+static Tcl_NRPostProc	NRCoroutineCallerCallback;
+static Tcl_NRPostProc	NRCoroutineExitCallback;
+static Tcl_NRPostProc	NRCommand;
+
+static void		ProcessUnexpectedResult(Tcl_Interp *interp,
+			    int returnCode);
+static int		RewindCoroutine(CoroutineData *corPtr, int result);
+static void		TEOV_SwitchVarFrame(Tcl_Interp *interp);
+static void		TEOV_PushExceptionHandlers(Tcl_Interp *interp,
+			    Tcl_Size objc, Tcl_Obj *const objv[], int flags);
+static inline Command *	TEOV_LookupCmdFromObj(Tcl_Interp *interp,
+			    Tcl_Obj *namePtr, Namespace *lookupNsPtr);
+static int		TEOV_NotFound(Tcl_Interp *interp, Tcl_Size objc,
+			    Tcl_Obj *const objv[], Namespace *lookupNsPtr);
+static int		TEOV_RunEnterTraces(Tcl_Interp *interp,
+			    Command **cmdPtrPtr, Tcl_Obj *commandPtr, Tcl_Size objc,
+			    Tcl_Obj *const objv[]);
+static Tcl_NRPostProc	RewindCoroutineCallback;
+static Tcl_NRPostProc	TEOEx_ByteCodeCallback;
+static Tcl_NRPostProc	TEOEx_ListCallback;
+static Tcl_NRPostProc	TEOV_Error;
+static Tcl_NRPostProc	TEOV_Exception;
+static Tcl_NRPostProc	TEOV_NotFoundCallback;
+static Tcl_NRPostProc	TEOV_RestoreVarFrame;
+static Tcl_NRPostProc	TEOV_RunLeaveTraces;
+static Tcl_NRPostProc	EvalObjvCore;
+static Tcl_NRPostProc	Dispatch;
+
+static Tcl_NRPostProc NRPostInvoke;
+static Tcl_ObjCmdProc CoroTypeObjCmd;
+static Tcl_ObjCmdProc TclNRCoroInjectObjCmd;
+static Tcl_ObjCmdProc TclNRCoroProbeObjCmd;
+static Tcl_NRPostProc InjectHandler;
+static Tcl_NRPostProc InjectHandlerPostCall;
+
+MODULE_SCOPE const TclStubs tclStubs;
+
+/*
+ * Magical counts for the number of arguments accepted by a coroutine command
+ * after particular kinds of [yield].
+ */
 
-extern TclStubs tclStubs;
+#define CORO_ACTIVATE_YIELD	NULL
+#define CORO_ACTIVATE_YIELDM	INT2PTR(1)
 
+#define COROUTINE_ARGUMENTS_SINGLE_OPTIONAL	(-1)
+#define COROUTINE_ARGUMENTS_ARBITRARY		(-2)
+
 /*
  * The following structure define the commands in the Tcl core.
  */
@@ -106,152 +265,277 @@ typedef struct {
     const char *name;		/* Name of object-based command. */
     Tcl_ObjCmdProc *objProc;	/* Object-based function for command. */
     CompileProc *compileProc;	/* Function called to compile command. */
-    int isSafe;			/* If non-zero, command will be present in
-				 * safe interpreter. Otherwise it will be
-				 * hidden. */
+    Tcl_ObjCmdProc *nreProc;	/* NR-based function for command */
+    int flags;			/* Various flag bits, as defined below. */
 } CmdInfo;
 
+#define CMD_IS_SAFE 1		/* Whether this command is part of the set of
+				 * commands present by default in a safe
+				 * interpreter. */
+/* CMD_COMPILES_EXPANDED - Whether the compiler for this command can handle
+ * expansion for itself rather than needing the generic layer to take care of
+ * it for it. Defined in tclInt.h. */
+
+/*
+ * The following struct states that the command it talks about (a subcommand
+ * of one of Tcl's built-in ensembles) is unsafe and must be hidden when an
+ * interpreter is made safe. (TclHideUnsafeCommands accesses an array of these
+ * structs.) Alas, we can't sensibly just store the information directly in
+ * the commands.
+ */
+
+typedef struct {
+    const char *ensembleNsName;	/* The ensemble's name within ::tcl. NULL for
+				 * the end of the list of commands to hide. */
+    const char *commandName;	/* The name of the command within the
+				 * ensemble. If this is NULL, we want to also
+				 * make the overall command be hidden, an ugly
+				 * hack because it is expected by security
+				 * policies in the wild. */
+} UnsafeEnsembleInfo;
+
 /*
  * The built-in commands, and the functions that implement them:
  */
 
+static int
+procObjCmd(
+    void *clientData,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    return Tcl_ProcObjCmd(clientData, interp, objc, objv);
+}
+
 static const CmdInfo builtInCmds[] = {
     /*
      * Commands in the generic core.
      */
 
-    {"append",		Tcl_AppendObjCmd,	TclCompileAppendCmd,	1},
-    {"apply",		Tcl_ApplyObjCmd,	NULL,			1},
-    {"array",		Tcl_ArrayObjCmd,	NULL,			1},
-    {"binary",		Tcl_BinaryObjCmd,	NULL,			1},
-    {"break",		Tcl_BreakObjCmd,	TclCompileBreakCmd,	1},
-#ifndef EXCLUDE_OBSOLETE_COMMANDS
-    {"case",		Tcl_CaseObjCmd,		NULL,			1},
-#endif
-    {"catch",		Tcl_CatchObjCmd,	TclCompileCatchCmd,	1},
-    {"concat",		Tcl_ConcatObjCmd,	NULL,			1},
-    {"continue",	Tcl_ContinueObjCmd,	TclCompileContinueCmd,	1},
-    {"error",		Tcl_ErrorObjCmd,	NULL,			1},
-    {"eval",		Tcl_EvalObjCmd,		NULL,			1},
-    {"expr",		Tcl_ExprObjCmd,		TclCompileExprCmd,	1},
-    {"for",		Tcl_ForObjCmd,		TclCompileForCmd,	1},
-    {"foreach",		Tcl_ForeachObjCmd,	TclCompileForeachCmd,	1},
-    {"format",		Tcl_FormatObjCmd,	NULL,			1},
-    {"global",		Tcl_GlobalObjCmd,	TclCompileGlobalCmd,	1},
-    {"if",		Tcl_IfObjCmd,		TclCompileIfCmd,	1},
-    {"incr",		Tcl_IncrObjCmd,		TclCompileIncrCmd,	1},
-    {"join",		Tcl_JoinObjCmd,		NULL,			1},
-    {"lappend",		Tcl_LappendObjCmd,	TclCompileLappendCmd,	1},
-    {"lassign",		Tcl_LassignObjCmd,	TclCompileLassignCmd,	1},
-    {"lindex",		Tcl_LindexObjCmd,	TclCompileLindexCmd,	1},
-    {"linsert",		Tcl_LinsertObjCmd,	NULL,			1},
-    {"list",		Tcl_ListObjCmd,		TclCompileListCmd,	1},
-    {"llength",		Tcl_LlengthObjCmd,	TclCompileLlengthCmd,	1},
-    {"lrange",		Tcl_LrangeObjCmd,	NULL,			1},
-    {"lrepeat",		Tcl_LrepeatObjCmd,	NULL,			1},
-    {"lreplace",	Tcl_LreplaceObjCmd,	NULL,			1},
-    {"lreverse",	Tcl_LreverseObjCmd,	NULL,			1},
-    {"lsearch",		Tcl_LsearchObjCmd,	NULL,			1},
-    {"lset",		Tcl_LsetObjCmd,		TclCompileLsetCmd,	1},
-    {"lsort",		Tcl_LsortObjCmd,	NULL,			1},
-    {"namespace",	Tcl_NamespaceObjCmd,	TclCompileNamespaceCmd,	1},
-    {"package",		Tcl_PackageObjCmd,	NULL,			1},
-    {"proc",		Tcl_ProcObjCmd,		NULL,			1},
-    {"regexp",		Tcl_RegexpObjCmd,	TclCompileRegexpCmd,	1},
-    {"regsub",		Tcl_RegsubObjCmd,	NULL,			1},
-    {"rename",		Tcl_RenameObjCmd,	NULL,			1},
-    {"return",		Tcl_ReturnObjCmd,	TclCompileReturnCmd,	1},
-    {"scan",		Tcl_ScanObjCmd,		NULL,			1},
-    {"set",		Tcl_SetObjCmd,		TclCompileSetCmd,	1},
-    {"split",		Tcl_SplitObjCmd,	NULL,			1},
-    {"subst",		Tcl_SubstObjCmd,	NULL,			1},
-    {"switch",		Tcl_SwitchObjCmd,	TclCompileSwitchCmd,	1},
-    {"trace",		Tcl_TraceObjCmd,	NULL,			1},
-    {"unset",		Tcl_UnsetObjCmd,	NULL,			1},
-    {"uplevel",		Tcl_UplevelObjCmd,	NULL,			1},
-    {"upvar",		Tcl_UpvarObjCmd,	TclCompileUpvarCmd,	1},
-    {"variable",	Tcl_VariableObjCmd,	TclCompileVariableCmd,	1},
-    {"while",		Tcl_WhileObjCmd,	TclCompileWhileCmd,	1},
+    {"append",		Tcl_AppendObjCmd,	TclCompileAppendCmd,	NULL,	CMD_IS_SAFE},
+    {"apply",		Tcl_ApplyObjCmd,	NULL,			TclNRApplyObjCmd,	CMD_IS_SAFE},
+    {"break",		Tcl_BreakObjCmd,	TclCompileBreakCmd,	NULL,	CMD_IS_SAFE},
+    {"catch",		Tcl_CatchObjCmd,	TclCompileCatchCmd,	TclNRCatchObjCmd,	CMD_IS_SAFE},
+    {"concat",		Tcl_ConcatObjCmd,	TclCompileConcatCmd,	NULL,	CMD_IS_SAFE},
+    {"const",		Tcl_ConstObjCmd,	TclCompileConstCmd,	NULL,	CMD_IS_SAFE},
+    {"continue",	Tcl_ContinueObjCmd,	TclCompileContinueCmd,	NULL,	CMD_IS_SAFE},
+    {"coroinject",	NULL,			NULL,			TclNRCoroInjectObjCmd,	CMD_IS_SAFE},
+    {"coroprobe",	NULL,			NULL,			TclNRCoroProbeObjCmd,	CMD_IS_SAFE},
+    {"coroutine",	NULL,			NULL,			TclNRCoroutineObjCmd,	CMD_IS_SAFE},
+    {"error",		Tcl_ErrorObjCmd,	TclCompileErrorCmd,	NULL,	CMD_IS_SAFE},
+    {"eval",		Tcl_EvalObjCmd,		NULL,			TclNREvalObjCmd,	CMD_IS_SAFE},
+    {"expr",		Tcl_ExprObjCmd,		TclCompileExprCmd,	TclNRExprObjCmd,	CMD_IS_SAFE},
+    {"for",		Tcl_ForObjCmd,		TclCompileForCmd,	TclNRForObjCmd,	CMD_IS_SAFE},
+    {"foreach",		Tcl_ForeachObjCmd,	TclCompileForeachCmd,	TclNRForeachCmd,	CMD_IS_SAFE},
+    {"format",		Tcl_FormatObjCmd,	TclCompileFormatCmd,	NULL,	CMD_IS_SAFE},
+    {"fpclassify",	FloatClassifyObjCmd,    NULL,			NULL,	CMD_IS_SAFE},
+    {"global",		Tcl_GlobalObjCmd,	TclCompileGlobalCmd,	NULL,	CMD_IS_SAFE},
+    {"if",		Tcl_IfObjCmd,		TclCompileIfCmd,	TclNRIfObjCmd,	CMD_IS_SAFE},
+    {"incr",		Tcl_IncrObjCmd,		TclCompileIncrCmd,	NULL,	CMD_IS_SAFE},
+    {"join",		Tcl_JoinObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"lappend",		Tcl_LappendObjCmd,	TclCompileLappendCmd,	NULL,	CMD_IS_SAFE},
+    {"lassign",		Tcl_LassignObjCmd,	TclCompileLassignCmd,	NULL,	CMD_IS_SAFE},
+    {"ledit",		Tcl_LeditObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"lindex",		Tcl_LindexObjCmd,	TclCompileLindexCmd,	NULL,	CMD_IS_SAFE},
+    {"linsert",		Tcl_LinsertObjCmd,	TclCompileLinsertCmd,	NULL,	CMD_IS_SAFE},
+    {"list",		Tcl_ListObjCmd,		TclCompileListCmd,	NULL,	CMD_IS_SAFE|CMD_COMPILES_EXPANDED},
+    {"llength",		Tcl_LlengthObjCmd,	TclCompileLlengthCmd,	NULL,	CMD_IS_SAFE},
+    {"lmap",		Tcl_LmapObjCmd,		TclCompileLmapCmd,	TclNRLmapCmd,	CMD_IS_SAFE},
+    {"lpop",		Tcl_LpopObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"lrange",		Tcl_LrangeObjCmd,	TclCompileLrangeCmd,	NULL,	CMD_IS_SAFE},
+    {"lremove",		Tcl_LremoveObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"lrepeat",		Tcl_LrepeatObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"lreplace",	Tcl_LreplaceObjCmd,	TclCompileLreplaceCmd,	NULL,	CMD_IS_SAFE},
+    {"lreverse",	Tcl_LreverseObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"lsearch",		Tcl_LsearchObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"lseq",		Tcl_LseqObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"lset",		Tcl_LsetObjCmd,		TclCompileLsetCmd,	NULL,	CMD_IS_SAFE},
+    {"lsort",		Tcl_LsortObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"package",		Tcl_PackageObjCmd,	NULL,			TclNRPackageObjCmd,	CMD_IS_SAFE},
+    {"proc",		procObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"regexp",		Tcl_RegexpObjCmd,	TclCompileRegexpCmd,	NULL,	CMD_IS_SAFE},
+    {"regsub",		Tcl_RegsubObjCmd,	TclCompileRegsubCmd,	NULL,	CMD_IS_SAFE},
+    {"rename",		Tcl_RenameObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"return",		Tcl_ReturnObjCmd,	TclCompileReturnCmd,	NULL,	CMD_IS_SAFE},
+    {"scan",		Tcl_ScanObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"set",		Tcl_SetObjCmd,		TclCompileSetCmd,	NULL,	CMD_IS_SAFE},
+    {"split",		Tcl_SplitObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"subst",		Tcl_SubstObjCmd,	TclCompileSubstCmd,	TclNRSubstObjCmd,	CMD_IS_SAFE},
+    {"switch",		Tcl_SwitchObjCmd,	TclCompileSwitchCmd,	TclNRSwitchObjCmd, CMD_IS_SAFE},
+    {"tailcall",	NULL,			TclCompileTailcallCmd,	TclNRTailcallObjCmd,	CMD_IS_SAFE},
+    {"throw",		Tcl_ThrowObjCmd,	TclCompileThrowCmd,	NULL,	CMD_IS_SAFE},
+    {"trace",		Tcl_TraceObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"try",		Tcl_TryObjCmd,		TclCompileTryCmd,	TclNRTryObjCmd,	CMD_IS_SAFE},
+    {"unset",		Tcl_UnsetObjCmd,	TclCompileUnsetCmd,	NULL,	CMD_IS_SAFE},
+    {"uplevel",		Tcl_UplevelObjCmd,	NULL,			TclNRUplevelObjCmd,	CMD_IS_SAFE},
+    {"upvar",		Tcl_UpvarObjCmd,	TclCompileUpvarCmd,	NULL,	CMD_IS_SAFE},
+    {"variable",	Tcl_VariableObjCmd,	TclCompileVariableCmd,	NULL,	CMD_IS_SAFE},
+    {"while",		Tcl_WhileObjCmd,	TclCompileWhileCmd,	TclNRWhileObjCmd,	CMD_IS_SAFE},
+    {"yield",		NULL,			TclCompileYieldCmd,	TclNRYieldObjCmd,	CMD_IS_SAFE},
+    {"yieldto",		NULL,			TclCompileYieldToCmd,	TclNRYieldToObjCmd,	CMD_IS_SAFE},
 
     /*
      * Commands in the OS-interface. Note that many of these are unsafe.
      */
 
-    {"after",		Tcl_AfterObjCmd,	NULL,			1},
-    {"cd",		Tcl_CdObjCmd,		NULL,			0},
-    {"close",		Tcl_CloseObjCmd,	NULL,			1},
-    {"eof",		Tcl_EofObjCmd,		NULL,			1},
-    {"encoding",	Tcl_EncodingObjCmd,	NULL,			0},
-    {"exec",		Tcl_ExecObjCmd,		NULL,			0},
-    {"exit",		Tcl_ExitObjCmd,		NULL,			0},
-    {"fblocked",	Tcl_FblockedObjCmd,	NULL,			1},
-    {"fconfigure",	Tcl_FconfigureObjCmd,	NULL,			0},
-    {"fcopy",		Tcl_FcopyObjCmd,	NULL,			1},
-    {"file",		Tcl_FileObjCmd,		NULL,			0},
-    {"fileevent",	Tcl_FileEventObjCmd,	NULL,			1},
-    {"flush",		Tcl_FlushObjCmd,	NULL,			1},
-    {"gets",		Tcl_GetsObjCmd,		NULL,			1},
-    {"glob",		Tcl_GlobObjCmd,		NULL,			0},
-    {"load",		Tcl_LoadObjCmd,		NULL,			0},
-    {"open",		Tcl_OpenObjCmd,		NULL,			0},
-    {"pid",		Tcl_PidObjCmd,		NULL,			1},
-    {"puts",		Tcl_PutsObjCmd,		NULL,			1},
-    {"pwd",		Tcl_PwdObjCmd,		NULL,			0},
-    {"read",		Tcl_ReadObjCmd,		NULL,			1},
-    {"seek",		Tcl_SeekObjCmd,		NULL,			1},
-    {"socket",		Tcl_SocketObjCmd,	NULL,			0},
-    {"source",		Tcl_SourceObjCmd,	NULL,			0},
-    {"tell",		Tcl_TellObjCmd,		NULL,			1},
-    {"time",		Tcl_TimeObjCmd,		NULL,			1},
-#ifdef TCL_TIMERATE
-    {"timerate",	Tcl_TimeRateObjCmd,	NULL,			1},
-#endif
-    {"unload",		Tcl_UnloadObjCmd,	NULL,			0},
-    {"update",		Tcl_UpdateObjCmd,	NULL,			1},
-    {"vwait",		Tcl_VwaitObjCmd,	NULL,			1},
-    {NULL,		NULL,			NULL,			0}
+    {"after",		Tcl_AfterObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"cd",		Tcl_CdObjCmd,		NULL,			NULL,	0},
+    {"close",		Tcl_CloseObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"eof",		Tcl_EofObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"exec",		Tcl_ExecObjCmd,		NULL,			NULL,	0},
+    {"exit",		Tcl_ExitObjCmd,		NULL,			NULL,	0},
+    {"fblocked",	Tcl_FblockedObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"fconfigure",	Tcl_FconfigureObjCmd,	NULL,			NULL,	0},
+    {"fcopy",		Tcl_FcopyObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"fileevent",	Tcl_FileEventObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"flush",		Tcl_FlushObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"gets",		Tcl_GetsObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"glob",		Tcl_GlobObjCmd,		NULL,			NULL,	0},
+    {"load",		Tcl_LoadObjCmd,		NULL,			NULL,	0},
+    {"open",		Tcl_OpenObjCmd,		NULL,			NULL,	0},
+    {"pid",		Tcl_PidObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"puts",		Tcl_PutsObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"pwd",		Tcl_PwdObjCmd,		NULL,			NULL,	0},
+    {"read",		Tcl_ReadObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"seek",		Tcl_SeekObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"socket",		Tcl_SocketObjCmd,	NULL,			NULL,	0},
+    {"source",		Tcl_SourceObjCmd,	NULL,			TclNRSourceObjCmd,	0},
+    {"tell",		Tcl_TellObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"time",		Tcl_TimeObjCmd,		NULL,			NULL,	CMD_IS_SAFE},
+    {"timerate",	Tcl_TimeRateObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"unload",		Tcl_UnloadObjCmd,	NULL,			NULL,	0},
+    {"update",		Tcl_UpdateObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {"vwait",		Tcl_VwaitObjCmd,	NULL,			NULL,	CMD_IS_SAFE},
+    {NULL,		NULL,			NULL,			NULL,	0}
+};
+
+/*
+ * Information about which pieces of ensembles to hide when making an
+ * interpreter safe:
+ */
+
+static const UnsafeEnsembleInfo unsafeEnsembleCommands[] = {
+    /* [encoding] has two unsafe commands. Assumed by older security policies
+     * to be overall unsafe; it isn't but... */
+    {"encoding", NULL},
+    {"encoding", "dirs"},
+    {"encoding", "system"},
+    /* [file] has MANY unsafe commands! Assumed by older security policies to
+     * be overall unsafe; it isn't but... */
+    {"file", NULL},
+    {"file", "atime"},
+    {"file", "attributes"},
+    {"file", "copy"},
+    {"file", "delete"},
+    {"file", "dirname"},
+    {"file", "executable"},
+    {"file", "exists"},
+    {"file", "extension"},
+    {"file", "home"},
+    {"file", "isdirectory"},
+    {"file", "isfile"},
+    {"file", "link"},
+    {"file", "lstat"},
+    {"file", "mtime"},
+    {"file", "mkdir"},
+    {"file", "nativename"},
+    {"file", "normalize"},
+    {"file", "owned"},
+    {"file", "readable"},
+    {"file", "readlink"},
+    {"file", "rename"},
+    {"file", "rootname"},
+    {"file", "size"},
+    {"file", "stat"},
+    {"file", "tail"},
+    {"file", "tempdir"},
+    {"file", "tempfile"},
+    {"file", "tildeexpand"},
+    {"file", "type"},
+    {"file", "volumes"},
+    {"file", "writable"},
+    /* [info] has two unsafe commands */
+    {"info", "cmdtype"},
+    {"info", "nameofexecutable"},
+    /* [tcl::process] has ONLY unsafe commands! */
+    {"process", "list"},
+    {"process", "status"},
+    {"process", "purge"},
+    {"process", "autopurge"},
+    /*
+     * [zipfs] perhaps has some safe commands. But like file make it inaccessible
+     * until they are analyzed to be safe.
+     */
+    {"zipfs", NULL},
+    {"zipfs", "canonical"},
+    {"zipfs", "exists"},
+    {"zipfs", "info"},
+    {"zipfs", "list"},
+    {"zipfs", "lmkimg"},
+    {"zipfs", "lmkzip"},
+    {"zipfs", "mkimg"},
+    {"zipfs", "mkkey"},
+    {"zipfs", "mkzip"},
+    {"zipfs", "mount"},
+    {"zipfs", "mountdata"},
+    {"zipfs", "root"},
+    {"zipfs", "unmount"},
+    {NULL, NULL}
 };
 
 /*
  * Math functions. All are safe.
  */
 
+typedef double (BuiltinUnaryFunc)(double x);
+typedef double (BuiltinBinaryFunc)(double x, double y);
+#define BINARY_TYPECAST(fn) \
+	(BuiltinUnaryFunc *)(void *)(BuiltinBinaryFunc *) fn
 typedef struct {
     const char *name;		/* Name of the function. The full name is
-				 * "::tcl::mathfunc::<name>".  */
+				 * "::tcl::mathfunc::<name>". */
     Tcl_ObjCmdProc *objCmdProc;	/* Function that evaluates the function */
-    ClientData clientData;	/* Client data for the function */
+    BuiltinUnaryFunc *fn;	/* Real function pointer */
 } BuiltinFuncDef;
 static const BuiltinFuncDef BuiltinFuncTable[] = {
-    { "abs",	ExprAbsFunc,	NULL 			},
-    { "acos",	ExprUnaryFunc,	(ClientData) acos 	},
-    { "asin",	ExprUnaryFunc,	(ClientData) asin 	},
-    { "atan",	ExprUnaryFunc,	(ClientData) atan 	},
-    { "atan2",	ExprBinaryFunc,	(ClientData) atan2 	},
+    { "abs",	ExprAbsFunc,	NULL			},
+    { "acos",	ExprUnaryFunc,	acos			},
+    { "asin",	ExprUnaryFunc,	asin			},
+    { "atan",	ExprUnaryFunc,	atan			},
+    { "atan2",	ExprBinaryFunc,	BINARY_TYPECAST(atan2)	},
     { "bool",	ExprBoolFunc,	NULL			},
-    { "ceil",	ExprCeilFunc,	NULL		 	},
-    { "cos",	ExprUnaryFunc,	(ClientData) cos 	},
-    { "cosh",	ExprUnaryFunc,	(ClientData) cosh	},
+    { "ceil",	ExprCeilFunc,	NULL			},
+    { "cos",	ExprUnaryFunc,	cos			},
+    { "cosh",	ExprUnaryFunc,	cosh			},
     { "double",	ExprDoubleFunc,	NULL			},
-    { "entier",	ExprEntierFunc,	NULL			},
-    { "exp",	ExprUnaryFunc,	(ClientData) exp	},
-    { "floor",	ExprFloorFunc,	NULL		 	},
-    { "fmod",	ExprBinaryFunc,	(ClientData) fmod	},
-    { "hypot",	ExprBinaryFunc,	(ClientData) hypot 	},
+    { "entier",	ExprIntFunc,	NULL			},
+    { "exp",	ExprUnaryFunc,	exp			},
+    { "floor",	ExprFloorFunc,	NULL			},
+    { "fmod",	ExprBinaryFunc,	BINARY_TYPECAST(fmod)	},
+    { "hypot",	ExprBinaryFunc,	BINARY_TYPECAST(hypot)	},
     { "int",	ExprIntFunc,	NULL			},
+    { "isfinite", ExprIsFiniteFunc, NULL		},
+    { "isinf",	ExprIsInfinityFunc, NULL		},
+    { "isnan",	ExprIsNaNFunc,	NULL			},
+    { "isnormal", ExprIsNormalFunc, NULL		},
     { "isqrt",	ExprIsqrtFunc,	NULL			},
-    { "log",	ExprUnaryFunc,	(ClientData) log 	},
-    { "log10",	ExprUnaryFunc,	(ClientData) log10 	},
-    { "pow",	ExprBinaryFunc,	(ClientData) pow 	},
+    { "issubnormal", ExprIsSubnormalFunc, NULL,		},
+    { "isunordered", ExprIsUnorderedFunc, NULL,		},
+    { "log",	ExprUnaryFunc,	log			},
+    { "log10",	ExprUnaryFunc,	log10			},
+    { "max",	ExprMaxFunc,	NULL			},
+    { "min",	ExprMinFunc,	NULL			},
+    { "pow",	ExprBinaryFunc,	BINARY_TYPECAST(pow)	},
     { "rand",	ExprRandFunc,	NULL			},
     { "round",	ExprRoundFunc,	NULL			},
-    { "sin",	ExprUnaryFunc,	(ClientData) sin 	},
-    { "sinh",	ExprUnaryFunc,	(ClientData) sinh 	},
-    { "sqrt",	ExprSqrtFunc,	NULL		 	},
+    { "sin",	ExprUnaryFunc,	sin			},
+    { "sinh",	ExprUnaryFunc,	sinh			},
+    { "sqrt",	ExprSqrtFunc,	NULL			},
     { "srand",	ExprSrandFunc,	NULL			},
-    { "tan",	ExprUnaryFunc,	(ClientData) tan 	},
-    { "tanh",	ExprUnaryFunc,	(ClientData) tanh 	},
-    { "wide",	ExprWideFunc,	NULL		 	},
+    { "tan",	ExprUnaryFunc,	tan			},
+    { "tanh",	ExprUnaryFunc,	tanh			},
+    { "wide",	ExprWideFunc,	NULL			},
     { NULL, NULL, NULL }
 };
 
@@ -317,51 +601,190 @@ static const OpCmdInfo mathOpCmds[] = {
 		/* unused */ {0},	NULL},
     { "eq",	TclSortingOpCmd,	TclCompileStreqOpCmd,
 		/* unused */ {0},	NULL},
+    { "lt",	TclSortingOpCmd,	TclCompileStrLtOpCmd,
+		/* unused */ {0},	NULL},
+    { "le",	TclSortingOpCmd,	TclCompileStrLeOpCmd,
+		/* unused */ {0},	NULL},
+    { "gt",	TclSortingOpCmd,	TclCompileStrGtOpCmd,
+		/* unused */ {0},	NULL},
+    { "ge",	TclSortingOpCmd,	TclCompileStrGeOpCmd,
+		/* unused */ {0},	NULL},
     { NULL,	NULL,			NULL,
 		{0},			NULL}
 };
-
+
 /*
- * Macros for stack checks. The goal of these macros is to allow the size of
- * the stack to be checked (so preventing overflow) in a *cheap* way. Note
- * that the check needs to be (amortized) cheap since it is on the critical
- * path for recursion.
+ *----------------------------------------------------------------------
+ *
+ * TclFinalizeEvaluation --
+ *
+ *	Finalizes the script cancellation hash table.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
  */
 
-#if defined(TCL_NO_STACK_CHECK)
+void
+TclFinalizeEvaluation(void)
+{
+    Tcl_MutexLock(&cancelLock);
+    if (cancelTableInitialized == 1) {
+	Tcl_DeleteHashTable(&cancelTable);
+	cancelTableInitialized = 0;
+    }
+    Tcl_MutexUnlock(&cancelLock);
+
+    Tcl_MutexLock(&commandTypeLock);
+    if (commandTypeInit) {
+	Tcl_DeleteHashTable(&commandTypeTable);
+	commandTypeInit = 0;
+    }
+    Tcl_MutexUnlock(&commandTypeLock);
+}
+
 /*
- * Stack check disabled: make them noops.
+ *----------------------------------------------------------------------
+ *
+ * buildInfoObjCmd --
+ *
+ *	Implements tcl::build-info command.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
  */
 
-#   define CheckCStack(interp, localIntPtr)	1
-#   define GetCStackParams(iPtr)		/* do nothing */
-#elif defined(TCL_CROSS_COMPILE)
+static int
+buildInfoObjCmd2(
+    void *clientData,
+    Tcl_Interp *interp,		/* Current interpreter. */
+    Tcl_Size objc,		/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Argument objects. */
+{
+    const char *buildData = (const char *) clientData;
+    char buf[80];
+    const char *arg, *p, *q;
+    Tcl_Size len;
+    int idx;
+    static const char *identifiers[] = {
+	"commit", "compiler", "patchlevel", "version", NULL
+    };
+    enum Identifiers {
+	ID_COMMIT, ID_COMPILER, ID_PATCHLEVEL, ID_VERSION, ID_OTHER
+    };
+
+    if (objc > 2) {
+	Tcl_WrongNumArgs(interp, 1, objv, "?option?");
+	return TCL_ERROR;
+    } else if (objc < 2) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(buildData, TCL_INDEX_NONE));
+	return TCL_OK;
+    }
+
+    /*
+     * Query for a specific piece of build info
+     */
 
-/*
- * This variable is static and only set *once*, during library initialization.
- * It therefore needs no thread guards.
- */
+    if (Tcl_GetIndexFromObj(NULL, objv[1], identifiers, NULL, TCL_EXACT,
+	    &idx) != TCL_OK) {
+	idx = ID_OTHER;
+    }
+
+    switch (idx) {
+    case ID_PATCHLEVEL:
+	if ((p = strchr(buildData, '+')) != NULL) {
+	    memcpy(buf, buildData, p - buildData);
+	    buf[p - buildData] = '\0';
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(buf, TCL_INDEX_NONE));
+	}
+	return TCL_OK;
+    case ID_VERSION:
+	if ((p = strchr(buildData, '.')) != NULL) {
+	    const char *r = strchr(p++, '+');
+	    q = strchr(p, '.');
+	    p = (q < r) ? q : r;
+	}
+	if (p != NULL) {
+	    memcpy(buf, buildData, p - buildData);
+	    buf[p - buildData] = '\0';
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(buf, TCL_INDEX_NONE));
+	}
+	return TCL_OK;
+    case ID_COMMIT:
+	if ((p = strchr(buildData, '+')) != NULL) {
+	    if ((q = strchr(p++, '.')) != NULL) {
+		memcpy(buf, p, q - p);
+		buf[q - p] = '\0';
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(buf, TCL_INDEX_NONE));
+	    } else {
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(p, TCL_INDEX_NONE));
+	    }
+	}
+	return TCL_OK;
+    case ID_COMPILER:
+	for (p = strchr(buildData, '.'); p++; p = strchr(p, '.')) {
+	    /*
+	     * Does the word begin with one of the standard prefixes?
+	     */
+	    if (!strncmp(p, "clang-", 6)
+		    || !strncmp(p, "gcc-", 4)
+		    || !strncmp(p, "icc-", 4)
+		    || !strncmp(p, "msvc-", 5)) {
+		if ((q = strchr(p, '.')) != NULL) {
+		    memcpy(buf, p, q - p);
+		    buf[q - p] = '\0';
+		    Tcl_SetObjResult(interp, Tcl_NewStringObj(buf, TCL_INDEX_NONE));
+		} else {
+		    Tcl_SetObjResult(interp, Tcl_NewStringObj(p, TCL_INDEX_NONE));
+		}
+		return TCL_OK;
+	    }
+	}
+	break;
+    default:		/* Boolean test for other identifiers' presence */
+	arg = TclGetStringFromObj(objv[1], &len);
+	for (p = strchr(buildData, '.'); p++; p = strchr(p, '.')) {
+	    if (!strncmp(p, arg, len)
+		    && ((p[len] == '.') || (p[len] == '-') || (p[len] == '\0'))) {
+		if (p[len] == '-') {
+		    p += len;
+		    q = strchr(++p, '.');
+		    if (!q) {
+			q = p + strlen(p);
+		    }
+		    memcpy(buf, p, q - p);
+		    buf[q - p] = '\0';
+		    Tcl_SetObjResult(interp, Tcl_NewStringObj(buf, TCL_INDEX_NONE));
+		} else {
+		    Tcl_SetObjResult(interp, Tcl_NewBooleanObj(1));
+		}
+		return TCL_OK;
+	    }
+	}
+    }
+    Tcl_SetObjResult(interp, Tcl_NewBooleanObj(0));
+    return TCL_OK;
+}
+
+static int
+buildInfoObjCmd(
+    void *clientData,
+    Tcl_Interp *interp,		/* Current interpreter. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Argument objects. */
+{
+    return buildInfoObjCmd2(clientData, interp, objc, objv);
+}
 
-static int stackGrowsDown = 1;
-#   define GetCStackParams(iPtr) \
-    stackGrowsDown = TclpGetCStackParams(&((iPtr)->stackBound))
-#   define CheckCStack(iPtr, localIntPtr) \
-    (stackGrowsDown \
-	    ? ((localIntPtr) > (iPtr)->stackBound) \
-	    : ((localIntPtr) < (iPtr)->stackBound) \
-    )
-#else /* !TCL_NO_STACK_CHECK && !TCL_CROSS_COMPILE */
-#   define GetCStackParams(iPtr) \
-    TclpGetCStackParams(&((iPtr)->stackBound))
-#   ifdef TCL_STACK_GROWS_UP
-#	define CheckCStack(iPtr, localIntPtr) \
-	   (!(iPtr)->stackBound || (localIntPtr) < (iPtr)->stackBound)
-#    else /* TCL_STACK_GROWS_UP */
-#	define CheckCStack(iPtr, localIntPtr) \
-	   ((localIntPtr) > (iPtr)->stackBound)
-#    endif /* TCL_STACK_GROWS_UP */
-#endif /* TCL_NO_STACK_CHECK/TCL_CROSS_COMPILE */
-
 /*
  *----------------------------------------------------------------------
  *
@@ -390,6 +813,9 @@ Tcl_CreateInterp(void)
     const OpCmdInfo *opcmdInfoPtr;
     const CmdInfo *cmdInfoPtr;
     Tcl_Namespace *nsPtr;
+    Tcl_HashEntry *hPtr;
+    int isNew;
+    CancelInfo *cancelInfo;
     union {
 	char c[sizeof(short)];
 	short s;
@@ -399,9 +825,7 @@ Tcl_CreateInterp(void)
 #endif /* TCL_COMPILE_STATS */
     char mathFuncName[32];
     CallFrame *framePtr;
-    int result;
-
-    TclInitSubsystems();
+    const char *version = Tcl_InitSubsystems();
 
     /*
      * Panic if someone updated the CallFrame structure without also updating
@@ -409,58 +833,82 @@ Tcl_CreateInterp(void)
      */
 
     if (sizeof(Tcl_CallFrame) < sizeof(CallFrame)) {
-	/*NOTREACHED*/
 	Tcl_Panic("Tcl_CallFrame must not be smaller than CallFrame");
     }
 
-#if defined(_WIN32) && !defined(_WIN64) && !defined(_USE_64BIT_TIME_T)
-    /* If Tcl is compiled on Win32 using -D_USE_64BIT_TIME_T
-     * the result is a binary incompatible with the 'standard' build of
-     * Tcl: All extensions using Tcl_StatBuf need to be recompiled in
-     * the same way. Therefore, this is not officially supported.
-     * In stead, it is recommended to use Win64 or Tcl 9.0 (not released yet)
-     */
-    if ((TclOffset(Tcl_StatBuf,st_atime) != 32)
-	    || (TclOffset(Tcl_StatBuf,st_ctime) != 40)) {
-	/*NOTREACHED*/
-	Tcl_Panic("<sys/stat.h> is not compatible with MSVC");
+#if defined(_WIN32) && !defined(_WIN64)
+    if (sizeof(time_t) != 8) {
+	Tcl_Panic("<time.h> is not compatible with VS2005+");
+    }
+    if ((offsetof(Tcl_StatBuf,st_atime) != 32)
+	    || (offsetof(Tcl_StatBuf,st_ctime) != 48)) {
+	Tcl_Panic("<sys/stat.h> is not compatible with VS2005+");
     }
 #endif
 
+    if (cancelTableInitialized == 0) {
+	Tcl_MutexLock(&cancelLock);
+	if (cancelTableInitialized == 0) {
+	    Tcl_InitHashTable(&cancelTable, TCL_ONE_WORD_KEYS);
+	    cancelTableInitialized = 1;
+	}
+
+	Tcl_MutexUnlock(&cancelLock);
+    }
+
+#undef TclObjInterpProc
+    if (commandTypeInit == 0) {
+	TclRegisterCommandTypeName(TclObjInterpProc, "proc");
+	TclRegisterCommandTypeName(TclEnsembleImplementationCmd, "ensemble");
+	TclRegisterCommandTypeName(TclAliasObjCmd, "alias");
+	TclRegisterCommandTypeName(TclLocalAliasObjCmd, "alias");
+	TclRegisterCommandTypeName(TclChildObjCmd, "interp");
+	TclRegisterCommandTypeName(TclInvokeImportedCmd, "import");
+	TclRegisterCommandTypeName(TclOOPublicObjectCmd, "object");
+	TclRegisterCommandTypeName(TclOOPrivateObjectCmd, "privateObject");
+	TclRegisterCommandTypeName(TclOOMyClassObjCmd, "privateClass");
+	TclRegisterCommandTypeName(TclNRInterpCoroutine, "coroutine");
+    }
+
     /*
      * Initialize support for namespaces and create the global namespace
      * (whose name is ""; an alias is "::"). This also initializes the Tcl
      * object type table and other object management code.
      */
 
-    iPtr = (Interp *) ckalloc(sizeof(Interp));
+    iPtr = (Interp *)Tcl_Alloc(sizeof(Interp));
     interp = (Tcl_Interp *) iPtr;
 
-    iPtr->result = iPtr->resultSpace;
-    iPtr->freeProc = NULL;
+    iPtr->legacyResult = NULL;
+    /* Special invalid value: Any attempt to free the legacy result
+     * will cause a crash. */
+    iPtr->legacyFreeProc = (void (*) (void))-1;
     iPtr->errorLine = 0;
-    iPtr->objResultPtr = Tcl_NewObj();
+    iPtr->stubTable = &tclStubs;
+    TclNewObj(iPtr->objResultPtr);
     Tcl_IncrRefCount(iPtr->objResultPtr);
     iPtr->handle = TclHandleCreate(iPtr);
     iPtr->globalNsPtr = NULL;
     iPtr->hiddenCmdTablePtr = NULL;
     iPtr->interpInfo = NULL;
 
+    iPtr->optimizer = TclOptimizeBytecode;
+
     iPtr->numLevels = 0;
     iPtr->maxNestingDepth = MAX_NESTING_DEPTH;
     iPtr->framePtr = NULL;	/* Initialise as soon as :: is available */
     iPtr->varFramePtr = NULL;	/* Initialise as soon as :: is available */
 
     /*
-     * TIP #280 - Initialize the arrays used to extend the ByteCode and
-     * Proc structures.
+     * TIP #280 - Initialize the arrays used to extend the ByteCode and Proc
+     * structures.
      */
 
     iPtr->cmdFramePtr = NULL;
-    iPtr->linePBodyPtr = (Tcl_HashTable *) ckalloc(sizeof(Tcl_HashTable));
-    iPtr->lineBCPtr = (Tcl_HashTable *) ckalloc(sizeof(Tcl_HashTable));
-    iPtr->lineLAPtr = (Tcl_HashTable*) ckalloc (sizeof (Tcl_HashTable));
-    iPtr->lineLABCPtr = (Tcl_HashTable*) ckalloc (sizeof (Tcl_HashTable));
+    iPtr->linePBodyPtr = (Tcl_HashTable *)Tcl_Alloc(sizeof(Tcl_HashTable));
+    iPtr->lineBCPtr = (Tcl_HashTable *)Tcl_Alloc(sizeof(Tcl_HashTable));
+    iPtr->lineLAPtr = (Tcl_HashTable *)Tcl_Alloc(sizeof(Tcl_HashTable));
+    iPtr->lineLABCPtr = (Tcl_HashTable *)Tcl_Alloc(sizeof(Tcl_HashTable));
     Tcl_InitHashTable(iPtr->linePBodyPtr, TCL_ONE_WORD_KEYS);
     Tcl_InitHashTable(iPtr->lineBCPtr, TCL_ONE_WORD_KEYS);
     Tcl_InitHashTable(iPtr->lineLAPtr, TCL_ONE_WORD_KEYS);
@@ -473,6 +921,17 @@ Tcl_CreateInterp(void)
     iPtr->errorInfo = NULL;
     TclNewLiteralStringObj(iPtr->eiVar, "::errorInfo");
     Tcl_IncrRefCount(iPtr->eiVar);
+    iPtr->errorStack = Tcl_NewListObj(0, NULL);
+    Tcl_IncrRefCount(iPtr->errorStack);
+    iPtr->resetErrorStack = 1;
+    TclNewLiteralStringObj(iPtr->upLiteral,"UP");
+    Tcl_IncrRefCount(iPtr->upLiteral);
+    TclNewLiteralStringObj(iPtr->callLiteral,"CALL");
+    Tcl_IncrRefCount(iPtr->callLiteral);
+    TclNewLiteralStringObj(iPtr->innerLiteral,"INNER");
+    Tcl_IncrRefCount(iPtr->innerLiteral);
+    iPtr->innerContext = Tcl_NewListObj(0, NULL);
+    Tcl_IncrRefCount(iPtr->innerContext);
     iPtr->errorCode = NULL;
     TclNewLiteralStringObj(iPtr->ecVar, "::errorCode");
     Tcl_IncrRefCount(iPtr->ecVar);
@@ -482,23 +941,24 @@ Tcl_CreateInterp(void)
     iPtr->rootFramePtr = NULL;	/* Initialise as soon as :: is available */
     iPtr->lookupNsPtr = NULL;
 
-    iPtr->appendResult = NULL;
-    iPtr->appendAvl = 0;
-    iPtr->appendUsed = 0;
-
     Tcl_InitHashTable(&iPtr->packageTable, TCL_STRING_KEYS);
     iPtr->packageUnknown = NULL;
 
+#ifdef _WIN32
+#   define getenv(x) _wgetenv(L##x) /* On Windows, use _wgetenv below */
+#endif
+
     /* TIP #268 */
+#if (TCL_RELEASE_LEVEL == TCL_FINAL_RELEASE)
     if (getenv("TCL_PKG_PREFER_LATEST") == NULL) {
 	iPtr->packagePrefer = PKG_PREFER_STABLE;
-    } else {
+    } else
+#endif
 	iPtr->packagePrefer = PKG_PREFER_LATEST;
-    }
 
     iPtr->cmdCount = 0;
-    TclInitLiteralTable(&(iPtr->literalTable));
-    iPtr->compileEpoch = 0;
+    TclInitLiteralTable(&iPtr->literalTable);
+    iPtr->compileEpoch = 1;
     iPtr->compiledProcPtr = NULL;
     iPtr->resolverPtr = NULL;
     iPtr->evalFlags = 0;
@@ -510,10 +970,9 @@ Tcl_CreateInterp(void)
     iPtr->activeInterpTracePtr = NULL;
     iPtr->assocData = NULL;
     iPtr->execEnvPtr = NULL;	/* Set after namespaces initialized. */
-    iPtr->emptyObjPtr = Tcl_NewObj();
+    TclNewObj(iPtr->emptyObjPtr);
 				/* Another empty object. */
     Tcl_IncrRefCount(iPtr->emptyObjPtr);
-    iPtr->resultSpace[0] = 0;
     iPtr->threadId = Tcl_GetCurrentThread();
 
     /* TIP #378 */
@@ -521,7 +980,7 @@ Tcl_CreateInterp(void)
     iPtr->flags |= INTERP_DEBUG_FRAME;
 #else
     if (getenv("TCL_INTERP_DEBUG_FRAME") != NULL) {
-        iPtr->flags |= INTERP_DEBUG_FRAME;
+	iPtr->flags |= INTERP_DEBUG_FRAME;
     }
 #endif
 
@@ -547,12 +1006,9 @@ Tcl_CreateInterp(void)
      */
 
     /* This is needed to satisfy GCC 3.3's strict aliasing rules */
-    framePtr = (CallFrame *) ckalloc(sizeof(CallFrame));
-    result = Tcl_PushCallFrame(interp, (Tcl_CallFrame *) framePtr,
+    framePtr = (CallFrame *)Tcl_Alloc(sizeof(CallFrame));
+    (void) Tcl_PushCallFrame(interp, (Tcl_CallFrame *) framePtr,
 	    (Tcl_Namespace *) iPtr->globalNsPtr, /*isProcCallFrame*/ 0);
-    if (result != TCL_OK) {
-	Tcl_Panic("Tcl_CreateInterp: failed to push the root stack frame");
-    }
     framePtr->objc = 0;
 
     iPtr->framePtr = framePtr;
@@ -566,7 +1022,7 @@ Tcl_CreateInterp(void)
      * variable).
      */
 
-    iPtr->execEnvPtr = TclCreateExecEnv(interp);
+    iPtr->execEnvPtr = TclCreateExecEnv(interp, INTERP_STACK_INITIAL_SIZE);
 
     /*
      * TIP #219, Tcl Channel Reflection API support.
@@ -575,25 +1031,44 @@ Tcl_CreateInterp(void)
     iPtr->chanMsg = NULL;
 
     /*
+     * TIP #285, Script cancellation support.
+     */
+
+    TclNewObj(iPtr->asyncCancelMsg);
+
+    cancelInfo = (CancelInfo *)Tcl_Alloc(sizeof(CancelInfo));
+    cancelInfo->interp = interp;
+
+    iPtr->asyncCancel = Tcl_AsyncCreate(CancelEvalProc, cancelInfo);
+    cancelInfo->async = iPtr->asyncCancel;
+    cancelInfo->result = NULL;
+    cancelInfo->length = 0;
+
+    Tcl_MutexLock(&cancelLock);
+    hPtr = Tcl_CreateHashEntry(&cancelTable, iPtr, &isNew);
+    Tcl_SetHashValue(hPtr, cancelInfo);
+    Tcl_MutexUnlock(&cancelLock);
+
+    /*
      * Initialize the compilation and execution statistics kept for this
      * interpreter.
      */
 
 #ifdef TCL_COMPILE_STATS
-    statsPtr = &(iPtr->stats);
+    statsPtr = &iPtr->stats;
     statsPtr->numExecutions = 0;
     statsPtr->numCompilations = 0;
     statsPtr->numByteCodesFreed = 0;
-    (void) memset(statsPtr->instructionCount, 0,
+    memset(statsPtr->instructionCount, 0,
 	    sizeof(statsPtr->instructionCount));
 
     statsPtr->totalSrcBytes = 0.0;
     statsPtr->totalByteCodeBytes = 0.0;
     statsPtr->currentSrcBytes = 0.0;
     statsPtr->currentByteCodeBytes = 0.0;
-    (void) memset(statsPtr->srcCount, 0, sizeof(statsPtr->srcCount));
-    (void) memset(statsPtr->byteCodeCount, 0, sizeof(statsPtr->byteCodeCount));
-    (void) memset(statsPtr->lifetimeCount, 0, sizeof(statsPtr->lifetimeCount));
+    memset(statsPtr->srcCount, 0, sizeof(statsPtr->srcCount));
+    memset(statsPtr->byteCodeCount, 0, sizeof(statsPtr->byteCodeCount));
+    memset(statsPtr->lifetimeCount, 0, sizeof(statsPtr->lifetimeCount));
 
     statsPtr->currentInstBytes = 0.0;
     statsPtr->currentLitBytes = 0.0;
@@ -604,22 +1079,14 @@ Tcl_CreateInterp(void)
     statsPtr->numLiteralsCreated = 0;
     statsPtr->totalLitStringBytes = 0.0;
     statsPtr->currentLitStringBytes = 0.0;
-    (void) memset(statsPtr->literalCount, 0, sizeof(statsPtr->literalCount));
+    memset(statsPtr->literalCount, 0, sizeof(statsPtr->literalCount));
 #endif /* TCL_COMPILE_STATS */
 
     /*
-     * Initialise the stub table pointer.
-     */
-
-    iPtr->stubTable = &tclStubs;
-
-    /*
      * Initialize the ensemble error message rewriting support.
      */
 
-    iPtr->ensembleRewrite.sourceObjs = NULL;
-    iPtr->ensembleRewrite.numRemovedObjs = 0;
-    iPtr->ensembleRewrite.numInsertedObjs = 0;
+    TclResetRewriteEnsemble(interp, 1);
 
     /*
      * TIP#143: Initialise the resource limit support.
@@ -628,76 +1095,76 @@ Tcl_CreateInterp(void)
     TclInitLimitSupport(interp);
 
     /*
-     * Initialise the thread-specific data ekeko.
+     * Initialise the thread-specific data ekeko. Note that the thread's alloc
+     * cache was already initialised by the call to alloc the interp struct.
      */
 
-#if defined(TCL_THREADS) && defined(USE_THREAD_ALLOC)
-    iPtr->allocCache = TclpGetAllocCache();
+#if TCL_THREADS && defined(USE_THREAD_ALLOC)
+    iPtr->allocCache = (AllocCache *)TclpGetAllocCache();
 #else
     iPtr->allocCache = NULL;
 #endif
     iPtr->pendingObjDataPtr = NULL;
     iPtr->asyncReadyPtr = TclGetAsyncReadyPtr();
+    iPtr->deferredCallbacks = NULL;
 
     /*
-     * Insure that the stack checking mechanism for this interp is
-     * initialized.
-     */
-
-    GetCStackParams(iPtr);
-
-    /*
-     * Create the core commands. Do it here, rather than calling
-     * Tcl_CreateCommand, because it's faster (there's no need to check for a
-     * pre-existing command by the same name). If a command has a Tcl_CmdProc
-     * but no Tcl_ObjCmdProc, set the Tcl_ObjCmdProc to
-     * TclInvokeStringCommand. This is an object-based wrapper function that
-     * extracts strings, calls the string function, and creates an object for
-     * the result. Similarly, if a command has a Tcl_ObjCmdProc but no
-     * Tcl_CmdProc, set the Tcl_CmdProc to TclInvokeObjectCommand.
+     * Create the core commands. Do it here, rather than calling Tcl_CreateObjCommand,
+     * because it's faster (there's no need to check for a preexisting command
+     * by the same name). Set the Tcl_CmdProc to NULL.
      */
 
-    for (cmdInfoPtr = builtInCmds;  cmdInfoPtr->name != NULL; cmdInfoPtr++) {
-	int isNew;
-	Tcl_HashEntry *hPtr;
-
+    for (cmdInfoPtr = builtInCmds; cmdInfoPtr->name != NULL; cmdInfoPtr++) {
 	if ((cmdInfoPtr->objProc == NULL)
-		&& (cmdInfoPtr->compileProc == NULL)) {
+		&& (cmdInfoPtr->compileProc == NULL)
+		&& (cmdInfoPtr->nreProc == NULL)) {
 	    Tcl_Panic("builtin command with NULL object command proc and a NULL compile proc");
 	}
 
 	hPtr = Tcl_CreateHashEntry(&iPtr->globalNsPtr->cmdTable,
 		cmdInfoPtr->name, &isNew);
 	if (isNew) {
-	    cmdPtr = (Command *) ckalloc(sizeof(Command));
+	    cmdPtr = (Command *)Tcl_Alloc(sizeof(Command));
 	    cmdPtr->hPtr = hPtr;
 	    cmdPtr->nsPtr = iPtr->globalNsPtr;
 	    cmdPtr->refCount = 1;
 	    cmdPtr->cmdEpoch = 0;
 	    cmdPtr->compileProc = cmdInfoPtr->compileProc;
-	    cmdPtr->proc = TclInvokeObjectCommand;
-	    cmdPtr->clientData = cmdPtr;
+	    cmdPtr->proc = NULL;
+	    cmdPtr->clientData = NULL;
 	    cmdPtr->objProc = cmdInfoPtr->objProc;
 	    cmdPtr->objClientData = NULL;
 	    cmdPtr->deleteProc = NULL;
 	    cmdPtr->deleteData = NULL;
 	    cmdPtr->flags = 0;
+	    if (cmdInfoPtr->flags & CMD_COMPILES_EXPANDED) {
+		cmdPtr->flags |= CMD_COMPILES_EXPANDED;
+	    }
 	    cmdPtr->importRefPtr = NULL;
 	    cmdPtr->tracePtr = NULL;
+	    cmdPtr->nreProc = cmdInfoPtr->nreProc;
 	    Tcl_SetHashValue(hPtr, cmdPtr);
 	}
     }
 
     /*
-     * Create the "chan", "dict", "info" and "string" ensembles. Note that all
-     * these commands (and their subcommands that are not present in the
-     * global namespace) are wholly safe.
+     * Create the "array", "binary", "chan", "clock", "dict", "encoding",
+     * "file", "info", "namespace" and "string" ensembles. Note that all these
+     * commands (and their subcommands that are not present in the global
+     * namespace) are wholly safe *except* for "clock", "encoding" and "file".
      */
 
+    TclInitArrayCmd(interp);
+    TclInitBinaryCmd(interp);
     TclInitChanCmd(interp);
     TclInitDictCmd(interp);
+    TclInitEncodingCmd(interp);
+    TclInitFileCmd(interp);
     TclInitInfoCmd(interp);
+    TclInitNamespaceCmd(interp);
     TclInitStringCmd(interp);
+    TclInitPrefixCmd(interp);
+    TclInitProcessCmd(interp);
 
     /*
      * Register "clock" subcommands. These *do* go through
@@ -720,15 +1187,29 @@ Tcl_CreateInterp(void)
 	    TclDefaultBgErrorHandlerObjCmd, NULL, NULL);
 
     /*
-     * Create an unsupported command for debugging bytecode.
+     * Create unsupported commands for debugging bytecode and objects.
      */
 
     Tcl_CreateObjCommand(interp, "::tcl::unsupported::disassemble",
-	    Tcl_DisassembleObjCmd, NULL, NULL);
-
-    /* Create an unsupported command for timerate */
-    Tcl_CreateObjCommand(interp, "::tcl::unsupported::timerate",
-	    Tcl_TimeRateObjCmd, NULL, NULL);
+	    Tcl_DisassembleObjCmd, INT2PTR(0), NULL);
+    Tcl_CreateObjCommand(interp, "::tcl::unsupported::getbytecode",
+	    Tcl_DisassembleObjCmd, INT2PTR(1), NULL);
+    Tcl_CreateObjCommand(interp, "::tcl::unsupported::representation",
+	    Tcl_RepresentationCmd, NULL, NULL);
+
+    /* Adding the bytecode assembler command */
+    cmdPtr = (Command *) Tcl_NRCreateCommand(interp,
+	    "::tcl::unsupported::assemble", Tcl_AssembleObjCmd,
+	    TclNRAssembleObjCmd, NULL, NULL);
+    cmdPtr->compileProc = &TclCompileAssembleCmd;
+
+    /* Coroutine monkeybusiness */
+    Tcl_CreateObjCommand(interp, "::tcl::unsupported::corotype",
+	    CoroTypeObjCmd, NULL, NULL);
+
+    /* Load and intialize ICU */
+    Tcl_CreateObjCommand(interp, "::tcl::unsupported::loadIcu",
+	    TclLoadIcuObjCmd, NULL, NULL);
 
     /* Export unsupported commands */
     nsPtr = Tcl_FindNamespace(interp, "::tcl::unsupported", NULL, 0);
@@ -736,7 +1217,6 @@ Tcl_CreateInterp(void)
 	Tcl_Export(interp, nsPtr, "*", 1);
     }
 
-
 #ifdef USE_DTRACE
     /*
      * Register the tcl::dtrace command.
@@ -753,13 +1233,13 @@ Tcl_CreateInterp(void)
     if (nsPtr == NULL) {
 	Tcl_Panic("Can't create math function namespace");
     }
-    strcpy(mathFuncName, "::tcl::mathfunc::");
 #define MATH_FUNC_PREFIX_LEN 17 /* == strlen("::tcl::mathfunc::") */
+    memcpy(mathFuncName, "::tcl::mathfunc::", MATH_FUNC_PREFIX_LEN);
     for (builtinFuncPtr = BuiltinFuncTable; builtinFuncPtr->name != NULL;
 	    builtinFuncPtr++) {
-	strcpy(mathFuncName+MATH_FUNC_PREFIX_LEN, builtinFuncPtr->name);
+	strcpy(mathFuncName + MATH_FUNC_PREFIX_LEN, builtinFuncPtr->name);
 	Tcl_CreateObjCommand(interp, mathFuncName,
-		builtinFuncPtr->objCmdProc, builtinFuncPtr->clientData, NULL);
+		builtinFuncPtr->objCmdProc, (void *)builtinFuncPtr->fn, NULL);
 	Tcl_Export(interp, nsPtr, builtinFuncPtr->name, 0);
     }
 
@@ -768,15 +1248,14 @@ Tcl_CreateInterp(void)
      */
 
     nsPtr = Tcl_CreateNamespace(interp, "::tcl::mathop", NULL, NULL);
-#define MATH_OP_PREFIX_LEN 15 /* == strlen("::tcl::mathop::") */
     if (nsPtr == NULL) {
-	Tcl_Panic("can't create math operator namespace");
+	Tcl_Panic("cannot create math operator namespace");
     }
-    (void) Tcl_Export(interp, nsPtr, "*", 1);
-    strcpy(mathFuncName, "::tcl::mathop::");
+    Tcl_Export(interp, nsPtr, "*", 1);
+#define MATH_OP_PREFIX_LEN 15 /* == strlen("::tcl::mathop::") */
+    memcpy(mathFuncName, "::tcl::mathop::", MATH_OP_PREFIX_LEN);
     for (opcmdInfoPtr=mathOpCmds ; opcmdInfoPtr->name!=NULL ; opcmdInfoPtr++){
-	TclOpCmdClientData *occdPtr = (TclOpCmdClientData *)
-		ckalloc(sizeof(TclOpCmdClientData));
+	TclOpCmdClientData *occdPtr = (TclOpCmdClientData *)Tcl_Alloc(sizeof(TclOpCmdClientData));
 
 	occdPtr->op = opcmdInfoPtr->name;
 	occdPtr->i.numArgs = opcmdInfoPtr->i.numArgs;
@@ -822,60 +1301,124 @@ Tcl_CreateInterp(void)
 	    TCL_GLOBAL_ONLY);
 
     Tcl_SetVar2Ex(interp, "tcl_platform", "wordSize",
-	    Tcl_NewLongObj((long) sizeof(long)), TCL_GLOBAL_ONLY);
+	    Tcl_NewWideIntObj(sizeof(long)), TCL_GLOBAL_ONLY);
 
     /* TIP #291 */
     Tcl_SetVar2Ex(interp, "tcl_platform", "pointerSize",
-	    Tcl_NewLongObj((long) sizeof(void *)), TCL_GLOBAL_ONLY);
+	    Tcl_NewWideIntObj(sizeof(void *)), TCL_GLOBAL_ONLY);
 
     /*
      * Set up other variables such as tcl_version and tcl_library
      */
 
-    Tcl_SetVar(interp, "tcl_patchLevel", TCL_PATCH_LEVEL, TCL_GLOBAL_ONLY);
-    Tcl_SetVar(interp, "tcl_version", TCL_VERSION, TCL_GLOBAL_ONLY);
-    Tcl_TraceVar2(interp, "tcl_precision", NULL,
-	    TCL_GLOBAL_ONLY|TCL_TRACE_READS|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
-	    TclPrecTraceProc, NULL);
+    Tcl_SetVar2(interp, "tcl_patchLevel", NULL, TCL_PATCH_LEVEL, TCL_GLOBAL_ONLY);
+    Tcl_SetVar2(interp, "tcl_version", NULL, TCL_VERSION, TCL_GLOBAL_ONLY);
     TclpSetVariables(interp);
 
-#ifdef TCL_THREADS
-    /*
-     * The existence of the "threaded" element of the tcl_platform array
-     * indicates that this particular Tcl shell has been compiled with threads
-     * turned on. Using "info exists tcl_platform(threaded)" a Tcl script can
-     * introspect on the interpreter level of thread safety.
-     */
-
-    Tcl_SetVar2(interp, "tcl_platform", "threaded", "1", TCL_GLOBAL_ONLY);
-#endif
-
     /*
      * Register Tcl's version number.
      * TIP #268: Full patchlevel instead of just major.minor
+     * TIP #599: Extended build information "+<UUID>.<tag1>.<tag2>...."
      */
 
     Tcl_PkgProvideEx(interp, "Tcl", TCL_PATCH_LEVEL, &tclStubs);
-
-#ifdef Tcl_InitStubs
-#undef Tcl_InitStubs
-#endif
-    Tcl_InitStubs(interp, TCL_VERSION, 1);
+    Tcl_PkgProvideEx(interp, "tcl", TCL_PATCH_LEVEL, &tclStubs);
+    Tcl_CmdInfo info2;
+    Tcl_Command buildInfoCmd = Tcl_CreateObjCommand(interp, "::tcl::build-info",
+	    buildInfoObjCmd, (void *)version, NULL);
+    Tcl_GetCommandInfoFromToken(buildInfoCmd, &info2);
+    info2.objProc2 = buildInfoObjCmd2;
+    info2.objClientData2 = (void *)version;
+    Tcl_SetCommandInfoFromToken(buildInfoCmd, &info2);
 
     if (TclTommath_Init(interp) != TCL_OK) {
-	Tcl_Panic("%s", Tcl_GetString(Tcl_GetObjResult(interp)));
+	Tcl_Panic("%s", Tcl_GetStringResult(interp));
+    }
+
+    if (TclOOInit(interp) != TCL_OK) {
+	Tcl_Panic("%s", Tcl_GetStringResult(interp));
+    }
+
+    if (TclZlibInit(interp) != TCL_OK || TclZipfs_Init(interp) != TCL_OK) {
+	Tcl_Panic("%s", Tcl_GetStringResult(interp));
     }
 
+    TOP_CB(iPtr) = NULL;
     return interp;
 }
 
 static void
 DeleteOpCmdClientData(
-    ClientData clientData)
+    void *clientData)
+{
+    TclOpCmdClientData *occdPtr = (TclOpCmdClientData *)clientData;
+
+    Tcl_Free(occdPtr);
+}
+
+/*
+ * ---------------------------------------------------------------------
+ *
+ * TclRegisterCommandTypeName, TclGetCommandTypeName --
+ *
+ *	Command type registration and lookup mechanism. Everything is keyed by
+ *	the Tcl_ObjCmdProc for the command, and that is used as the *key* into
+ *	the hash table that maps to constant strings that are names. (It is
+ *	recommended that those names be ASCII.)
+ *
+ * ---------------------------------------------------------------------
+ */
+
+void
+TclRegisterCommandTypeName(
+    Tcl_ObjCmdProc *implementationProc,
+    const char *nameStr)
 {
-    TclOpCmdClientData *occdPtr = clientData;
+    Tcl_HashEntry *hPtr;
+
+    Tcl_MutexLock(&commandTypeLock);
+    if (commandTypeInit == 0) {
+	Tcl_InitHashTable(&commandTypeTable, TCL_ONE_WORD_KEYS);
+	commandTypeInit = 1;
+    }
+    if (nameStr != NULL) {
+	int isNew;
+
+	hPtr = Tcl_CreateHashEntry(&commandTypeTable,
+		implementationProc, &isNew);
+	Tcl_SetHashValue(hPtr, (void *) nameStr);
+    } else {
+	hPtr = Tcl_FindHashEntry(&commandTypeTable,
+		implementationProc);
+	if (hPtr != NULL) {
+	    Tcl_DeleteHashEntry(hPtr);
+	}
+    }
+    Tcl_MutexUnlock(&commandTypeLock);
+}
+
+const char *
+TclGetCommandTypeName(
+    Tcl_Command command)
+{
+    Command *cmdPtr = (Command *) command;
+    Tcl_ObjCmdProc *procPtr = cmdPtr->objProc;
+    const char *name = "native";
 
-    ckfree((char *) occdPtr);
+    if (procPtr == NULL) {
+	procPtr = cmdPtr->nreProc;
+    }
+    Tcl_MutexLock(&commandTypeLock);
+    if (commandTypeInit) {
+	Tcl_HashEntry *hPtr = Tcl_FindHashEntry(&commandTypeTable, procPtr);
+
+	if (hPtr && Tcl_GetHashValue(hPtr)) {
+	    name = (const char *) Tcl_GetHashValue(hPtr);
+	}
+    }
+    Tcl_MutexUnlock(&commandTypeLock);
+
+    return name;
 }
 
 /*
@@ -898,20 +1441,96 @@ int
 TclHideUnsafeCommands(
     Tcl_Interp *interp)		/* Hide commands in this interpreter. */
 {
-    register const CmdInfo *cmdInfoPtr;
+    const CmdInfo *cmdInfoPtr;
+    const UnsafeEnsembleInfo *unsafePtr;
 
     if (interp == NULL) {
 	return TCL_ERROR;
     }
     for (cmdInfoPtr = builtInCmds; cmdInfoPtr->name != NULL; cmdInfoPtr++) {
-	if (!cmdInfoPtr->isSafe) {
+	if (!(cmdInfoPtr->flags & CMD_IS_SAFE)) {
 	    Tcl_HideCommand(interp, cmdInfoPtr->name, cmdInfoPtr->name);
 	}
     }
+
+    for (unsafePtr = unsafeEnsembleCommands;
+	    unsafePtr->ensembleNsName; unsafePtr++) {
+	if (unsafePtr->commandName) {
+	    /*
+	     * Hide an ensemble subcommand.
+	     */
+
+	    Tcl_Obj *cmdName = Tcl_ObjPrintf("::tcl::%s::%s",
+		    unsafePtr->ensembleNsName, unsafePtr->commandName);
+	    Tcl_Obj *hideName = Tcl_ObjPrintf("tcl:%s:%s",
+		    unsafePtr->ensembleNsName, unsafePtr->commandName);
+
+#define INTERIM_HACK_NAME "___tmp"
+
+	    if (TclRenameCommand(interp, TclGetString(cmdName),
+			INTERIM_HACK_NAME) != TCL_OK
+		    || Tcl_HideCommand(interp, INTERIM_HACK_NAME,
+			    TclGetString(hideName)) != TCL_OK) {
+		Tcl_Panic("problem making '%s %s' safe: %s",
+			unsafePtr->ensembleNsName, unsafePtr->commandName,
+			Tcl_GetStringResult(interp));
+	    }
+	    Tcl_CreateObjCommand(interp, TclGetString(cmdName),
+		    BadEnsembleSubcommand, (void *)unsafePtr, NULL);
+	    TclDecrRefCount(cmdName);
+	    TclDecrRefCount(hideName);
+	} else {
+	    /*
+	     * Hide an ensemble main command (for compatibility).
+	     */
+
+	    if (Tcl_HideCommand(interp, unsafePtr->ensembleNsName,
+		    unsafePtr->ensembleNsName) != TCL_OK) {
+		Tcl_Panic("problem making '%s' safe: %s",
+			unsafePtr->ensembleNsName,
+			Tcl_GetStringResult(interp));
+	    }
+	}
+    }
+
     return TCL_OK;
 }
 
 /*
+ *----------------------------------------------------------------------
+ *
+ * BadEnsembleSubcommand --
+ *
+ *	Command used to act as a backstop implementation when subcommands of
+ *	ensembles are unsafe (the real implementations of the subcommands are
+ *	hidden). The clientData is description of what was hidden.
+ *
+ * Results:
+ *	A standard Tcl result (always a TCL_ERROR).
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+BadEnsembleSubcommand(
+    void *clientData,
+    Tcl_Interp *interp,
+    TCL_UNUSED(int) /*objc*/,
+    TCL_UNUSED(Tcl_Obj *const *) /* objv */)
+{
+    const UnsafeEnsembleInfo *infoPtr = (const UnsafeEnsembleInfo *)clientData;
+
+    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+	    "not allowed to invoke subcommand %s of %s",
+	    infoPtr->commandName, infoPtr->ensembleNsName));
+    Tcl_SetErrorCode(interp, "TCL", "SAFE", "SUBCOMMAND", (char *)NULL);
+    return TCL_ERROR;
+}
+
+/*
  *--------------------------------------------------------------
  *
  * Tcl_CallWhenDeleted --
@@ -937,22 +1556,22 @@ Tcl_CallWhenDeleted(
     Tcl_Interp *interp,		/* Interpreter to watch. */
     Tcl_InterpDeleteProc *proc,	/* Function to call when interpreter is about
 				 * to be deleted. */
-    ClientData clientData)	/* One-word value to pass to proc. */
+    void *clientData)		/* One-word value to pass to proc. */
 {
     Interp *iPtr = (Interp *) interp;
     static Tcl_ThreadDataKey assocDataCounterKey;
-    int *assocDataCounterPtr =
-	    Tcl_GetThreadData(&assocDataCounterKey, (int)sizeof(int));
+    int *assocDataCounterPtr = (int *)
+	    Tcl_GetThreadData(&assocDataCounterKey, sizeof(int));
     int isNew;
     char buffer[32 + TCL_INTEGER_SPACE];
-    AssocData *dPtr = (AssocData *) ckalloc(sizeof(AssocData));
+    AssocData *dPtr = (AssocData *)Tcl_Alloc(sizeof(AssocData));
     Tcl_HashEntry *hPtr;
 
-    sprintf(buffer, "Assoc Data Key #%d", *assocDataCounterPtr);
+    snprintf(buffer, sizeof(buffer), "Assoc Data Key #%d", *assocDataCounterPtr);
     (*assocDataCounterPtr)++;
 
     if (iPtr->assocData == NULL) {
-	iPtr->assocData = (Tcl_HashTable *) ckalloc(sizeof(Tcl_HashTable));
+	iPtr->assocData = (Tcl_HashTable *)Tcl_Alloc(sizeof(Tcl_HashTable));
 	Tcl_InitHashTable(iPtr->assocData, TCL_STRING_KEYS);
     }
     hPtr = Tcl_CreateHashEntry(iPtr->assocData, buffer, &isNew);
@@ -985,7 +1604,7 @@ Tcl_DontCallWhenDeleted(
     Tcl_Interp *interp,		/* Interpreter to watch. */
     Tcl_InterpDeleteProc *proc,	/* Function to call when interpreter is about
 				 * to be deleted. */
-    ClientData clientData)	/* One-word value to pass to proc. */
+    void *clientData)		/* One-word value to pass to proc. */
 {
     Interp *iPtr = (Interp *) interp;
     Tcl_HashTable *hTablePtr;
@@ -999,9 +1618,9 @@ Tcl_DontCallWhenDeleted(
     }
     for (hPtr = Tcl_FirstHashEntry(hTablePtr, &hSearch); hPtr != NULL;
 	    hPtr = Tcl_NextHashEntry(&hSearch)) {
-	dPtr = (AssocData *) Tcl_GetHashValue(hPtr);
+	dPtr = (AssocData *)Tcl_GetHashValue(hPtr);
 	if ((dPtr->proc == proc) && (dPtr->clientData == clientData)) {
-	    ckfree((char *) dPtr);
+	    Tcl_Free(dPtr);
 	    Tcl_DeleteHashEntry(hPtr);
 	    return;
 	}
@@ -1033,7 +1652,7 @@ Tcl_SetAssocData(
     const char *name,		/* Name for association. */
     Tcl_InterpDeleteProc *proc,	/* Proc to call when interpreter is about to
 				 * be deleted. */
-    ClientData clientData)	/* One-word value to pass to proc. */
+    void *clientData)		/* One-word value to pass to proc. */
 {
     Interp *iPtr = (Interp *) interp;
     AssocData *dPtr;
@@ -1041,14 +1660,14 @@ Tcl_SetAssocData(
     int isNew;
 
     if (iPtr->assocData == NULL) {
-	iPtr->assocData = (Tcl_HashTable *) ckalloc(sizeof(Tcl_HashTable));
+	iPtr->assocData = (Tcl_HashTable *)Tcl_Alloc(sizeof(Tcl_HashTable));
 	Tcl_InitHashTable(iPtr->assocData, TCL_STRING_KEYS);
     }
     hPtr = Tcl_CreateHashEntry(iPtr->assocData, name, &isNew);
     if (isNew == 0) {
-	dPtr = Tcl_GetHashValue(hPtr);
+	dPtr = (AssocData *)Tcl_GetHashValue(hPtr);
     } else {
-	dPtr = (AssocData *) ckalloc(sizeof(AssocData));
+	dPtr = (AssocData *)Tcl_Alloc(sizeof(AssocData));
     }
     dPtr->proc = proc;
     dPtr->clientData = clientData;
@@ -1089,12 +1708,12 @@ Tcl_DeleteAssocData(
     if (hPtr == NULL) {
 	return;
     }
-    dPtr = Tcl_GetHashValue(hPtr);
+    dPtr = (AssocData *)Tcl_GetHashValue(hPtr);
+    Tcl_DeleteHashEntry(hPtr);
     if (dPtr->proc != NULL) {
 	dPtr->proc(dPtr->clientData, interp);
     }
-    ckfree((char *) dPtr);
-    Tcl_DeleteHashEntry(hPtr);
+    Tcl_Free(dPtr);
 }
 
 /*
@@ -1115,7 +1734,7 @@ Tcl_DeleteAssocData(
  *----------------------------------------------------------------------
  */
 
-ClientData
+void *
 Tcl_GetAssocData(
     Tcl_Interp *interp,		/* Interpreter associated with. */
     const char *name,		/* Name of association. */
@@ -1134,7 +1753,7 @@ Tcl_GetAssocData(
     if (hPtr == NULL) {
 	return NULL;
     }
-    dPtr = Tcl_GetHashValue(hPtr);
+    dPtr = (AssocData *)Tcl_GetHashValue(hPtr);
     if (procPtr != NULL) {
 	*procPtr = dPtr->proc;
     }
@@ -1215,7 +1834,7 @@ Tcl_DeleteInterp(
      * Ensure that the interpreter is eventually deleted.
      */
 
-    Tcl_EventuallyFree(interp, (Tcl_FreeProc *) DeleteInterpProc);
+    Tcl_EventuallyFree(interp, DeleteInterpProc);
 }
 
 /*
@@ -1241,19 +1860,22 @@ Tcl_DeleteInterp(
 
 static void
 DeleteInterpProc(
-    Tcl_Interp *interp)		/* Interpreter to delete. */
+    void *blockPtr)		/* Interpreter to delete. */
 {
+    Tcl_Interp *interp = (Tcl_Interp *) blockPtr;
     Interp *iPtr = (Interp *) interp;
     Tcl_HashEntry *hPtr;
     Tcl_HashSearch search;
     Tcl_HashTable *hTablePtr;
     ResolverScheme *resPtr, *nextResPtr;
+    Tcl_Size i;
 
     /*
-     * Punt if there is an error in the Tcl_Release/Tcl_Preserve matchup.
+     * Punt if there is an error in the Tcl_Release/Tcl_Preserve matchup,
+	 * unless we are exiting.
      */
 
-    if (iPtr->numLevels > 0) {
+    if ((iPtr->numLevels > 0) && !TclInExit()) {
 	Tcl_Panic("DeleteInterpProc called with active evals");
     }
 
@@ -1276,6 +1898,37 @@ DeleteInterpProc(
     }
 
     /*
+     * TIP #285, Script cancellation support. Delete this interp from the
+     * global hash table of CancelInfo structs.
+     */
+
+    Tcl_MutexLock(&cancelLock);
+    hPtr = Tcl_FindHashEntry(&cancelTable, iPtr);
+    if (hPtr != NULL) {
+	CancelInfo *cancelInfo = (CancelInfo *)Tcl_GetHashValue(hPtr);
+
+	if (cancelInfo != NULL) {
+	    if (cancelInfo->result != NULL) {
+		Tcl_Free(cancelInfo->result);
+	    }
+	    Tcl_Free(cancelInfo);
+	}
+
+	Tcl_DeleteHashEntry(hPtr);
+    }
+
+    if (iPtr->asyncCancel != NULL) {
+	Tcl_AsyncDelete(iPtr->asyncCancel);
+	iPtr->asyncCancel = NULL;
+    }
+
+    if (iPtr->asyncCancelMsg != NULL) {
+	Tcl_DecrRefCount(iPtr->asyncCancelMsg);
+	iPtr->asyncCancelMsg = NULL;
+    }
+    Tcl_MutexUnlock(&cancelLock);
+
+    /*
      * Shut down all limit handler callback scripts that call back into this
      * interpreter. Then eliminate all limit handlers for this interpreter.
      */
@@ -1304,41 +1957,39 @@ DeleteInterpProc(
 	/*
 	 * Non-pernicious deletion. The deletion callbacks will not be allowed
 	 * to create any new hidden or non-hidden commands.
-	 * Tcl_DeleteCommandFromToken() will remove the entry from the
+	 * Tcl_DeleteCommandFromToken will remove the entry from the
 	 * hiddenCmdTablePtr.
 	 */
 
 	hPtr = Tcl_FirstHashEntry(hTablePtr, &search);
 	for (; hPtr != NULL; hPtr = Tcl_NextHashEntry(&search)) {
-	    Tcl_DeleteCommandFromToken(interp,
-		    (Tcl_Command) Tcl_GetHashValue(hPtr));
+	    Tcl_DeleteCommandFromToken(interp, (Tcl_Command)Tcl_GetHashValue(hPtr));
 	}
 	Tcl_DeleteHashTable(hTablePtr);
-	ckfree((char *) hTablePtr);
+	Tcl_Free(hTablePtr);
     }
 
-    /*
-     * Invoke deletion callbacks; note that a callback can create new
-     * callbacks, so we iterate.
-     */
-
-    while (iPtr->assocData != NULL) {
+    if (iPtr->assocData != NULL) {
 	AssocData *dPtr;
 
 	hTablePtr = iPtr->assocData;
-	iPtr->assocData = NULL;
+	/*
+	 * Invoke deletion callbacks; note that a callback can create new
+	 * callbacks, so we iterate.
+	 */
 	for (hPtr = Tcl_FirstHashEntry(hTablePtr, &search);
 		hPtr != NULL;
 		hPtr = Tcl_FirstHashEntry(hTablePtr, &search)) {
-	    dPtr = Tcl_GetHashValue(hPtr);
+	    dPtr = (AssocData *)Tcl_GetHashValue(hPtr);
 	    Tcl_DeleteHashEntry(hPtr);
 	    if (dPtr->proc != NULL) {
 		dPtr->proc(dPtr->clientData, interp);
 	    }
-	    ckfree((char *) dPtr);
+	    Tcl_Free(dPtr);
 	}
 	Tcl_DeleteHashTable(hTablePtr);
-	ckfree((char *) hTablePtr);
+	Tcl_Free(hTablePtr);
+	iPtr->assocData = NULL;
     }
 
     /*
@@ -1346,11 +1997,11 @@ DeleteInterpProc(
      * namespace. The order is important [Bug 1658572].
      */
 
-    if (iPtr->framePtr != iPtr->rootFramePtr) {
+    if ((iPtr->framePtr != iPtr->rootFramePtr) && !TclInExit()) {
 	Tcl_Panic("DeleteInterpProc: popping rootCallFrame with other frames on top");
     }
     Tcl_PopCallFrame(interp);
-    ckfree((char *) iPtr->rootFramePtr);
+    Tcl_Free(iPtr->rootFramePtr);
     iPtr->rootFramePtr = NULL;
     Tcl_DeleteNamespace((Tcl_Namespace *) iPtr->globalNsPtr);
 
@@ -1359,8 +2010,6 @@ DeleteInterpProc(
      * could have transferred ownership of the result string to Tcl.
      */
 
-    Tcl_FreeResult(interp);
-    interp->result = NULL;
     Tcl_DecrRefCount(iPtr->objResultPtr);
     iPtr->objResultPtr = NULL;
     Tcl_DecrRefCount(iPtr->ecVar);
@@ -1373,13 +2022,15 @@ DeleteInterpProc(
 	Tcl_DecrRefCount(iPtr->errorInfo);
 	iPtr->errorInfo = NULL;
     }
+    Tcl_DecrRefCount(iPtr->errorStack);
+    iPtr->errorStack = NULL;
+    Tcl_DecrRefCount(iPtr->upLiteral);
+    Tcl_DecrRefCount(iPtr->callLiteral);
+    Tcl_DecrRefCount(iPtr->innerLiteral);
+    Tcl_DecrRefCount(iPtr->innerContext);
     if (iPtr->returnOpts) {
 	Tcl_DecrRefCount(iPtr->returnOpts);
     }
-    if (iPtr->appendResult != NULL) {
-	ckfree(iPtr->appendResult);
-	iPtr->appendResult = NULL;
-    }
     TclFreePackageInfo(iPtr);
     while (iPtr->tracePtr != NULL) {
 	Tcl_DeleteTrace((Tcl_Interp *) iPtr, (Tcl_Trace) iPtr->tracePtr);
@@ -1397,8 +2048,8 @@ DeleteInterpProc(
     resPtr = iPtr->resolverPtr;
     while (resPtr) {
 	nextResPtr = resPtr->nextPtr;
-	ckfree(resPtr->name);
-	ckfree((char *) resPtr);
+	Tcl_Free(resPtr->name);
+	Tcl_Free(resPtr);
 	resPtr = nextResPtr;
     }
 
@@ -1407,104 +2058,101 @@ DeleteInterpProc(
      * interpreter.
      */
 
-    TclDeleteLiteralTable(interp, &(iPtr->literalTable));
+    TclDeleteLiteralTable(interp, &iPtr->literalTable);
 
     /*
      * TIP #280 - Release the arrays for ByteCode/Proc extension, and
      * contents.
      */
 
-    {
-	Tcl_HashEntry *hPtr;
-	Tcl_HashSearch hSearch;
-	int i;
+    for (hPtr = Tcl_FirstHashEntry(iPtr->linePBodyPtr, &search);
+	    hPtr != NULL;
+	    hPtr = Tcl_NextHashEntry(&search)) {
+	CmdFrame *cfPtr = (CmdFrame *)Tcl_GetHashValue(hPtr);
+	Proc *procPtr = (Proc *) Tcl_GetHashKey(iPtr->linePBodyPtr, hPtr);
 
-	for (hPtr = Tcl_FirstHashEntry(iPtr->linePBodyPtr, &hSearch);
-		hPtr != NULL;
-		hPtr = Tcl_NextHashEntry(&hSearch)) {
-	    CmdFrame *cfPtr = Tcl_GetHashValue(hPtr);
-	    Proc *procPtr = (Proc *) Tcl_GetHashKey(iPtr->linePBodyPtr, hPtr);
-	    procPtr->iPtr = NULL;
-	    if (cfPtr) {
-		if (cfPtr->type == TCL_LOCATION_SOURCE) {
-		    Tcl_DecrRefCount(cfPtr->data.eval.path);
-		}
-		ckfree((char *) cfPtr->line);
-		ckfree((char *) cfPtr);
+	procPtr->iPtr = NULL;
+	if (cfPtr) {
+	    if (cfPtr->type == TCL_LOCATION_SOURCE) {
+		Tcl_DecrRefCount(cfPtr->data.eval.path);
 	    }
-	    Tcl_DeleteHashEntry(hPtr);
+	    Tcl_Free(cfPtr->line);
+	    Tcl_Free(cfPtr);
 	}
-	Tcl_DeleteHashTable(iPtr->linePBodyPtr);
-	ckfree((char *) iPtr->linePBodyPtr);
-	iPtr->linePBodyPtr = NULL;
+	Tcl_DeleteHashEntry(hPtr);
+    }
+    Tcl_DeleteHashTable(iPtr->linePBodyPtr);
+    Tcl_Free(iPtr->linePBodyPtr);
+    iPtr->linePBodyPtr = NULL;
 
-	/*
-	 * See also tclCompile.c, TclCleanupByteCode
-	 */
+    /*
+     * See also tclCompile.c, TclCleanupByteCode
+     */
 
-	for (hPtr = Tcl_FirstHashEntry(iPtr->lineBCPtr, &hSearch);
-		hPtr != NULL;
-		hPtr = Tcl_NextHashEntry(&hSearch)) {
-	    ExtCmdLoc *eclPtr = (ExtCmdLoc *) Tcl_GetHashValue(hPtr);
+    for (hPtr = Tcl_FirstHashEntry(iPtr->lineBCPtr, &search);
+	    hPtr != NULL;
+	    hPtr = Tcl_NextHashEntry(&search)) {
+	ExtCmdLoc *eclPtr = (ExtCmdLoc *)Tcl_GetHashValue(hPtr);
 
-	    if (eclPtr->type == TCL_LOCATION_SOURCE) {
-		Tcl_DecrRefCount(eclPtr->path);
-	    }
-	    for (i=0; i< eclPtr->nuloc; i++) {
-		ckfree((char *) eclPtr->loc[i].line);
-	    }
+	if (eclPtr->type == TCL_LOCATION_SOURCE) {
+	    Tcl_DecrRefCount(eclPtr->path);
+	}
+	for (i=0; i<eclPtr->nuloc; i++) {
+	    Tcl_Free(eclPtr->loc[i].line);
+	}
 
-	    if (eclPtr->loc != NULL) {
-		ckfree((char *) eclPtr->loc);
-	    }
+	if (eclPtr->loc != NULL) {
+	    Tcl_Free(eclPtr->loc);
+	}
 
-	    Tcl_DeleteHashTable (&eclPtr->litInfo);
+	Tcl_Free(eclPtr);
+	Tcl_DeleteHashEntry(hPtr);
+    }
+    Tcl_DeleteHashTable(iPtr->lineBCPtr);
+    Tcl_Free(iPtr->lineBCPtr);
+    iPtr->lineBCPtr = NULL;
 
-	    ckfree((char *) eclPtr);
-	    Tcl_DeleteHashEntry(hPtr);
-	}
-	Tcl_DeleteHashTable(iPtr->lineBCPtr);
-	ckfree((char *) iPtr->lineBCPtr);
-	iPtr->lineBCPtr = NULL;
+    /*
+     * Location stack for uplevel/eval/... scripts which were passed through
+     * proc arguments. Actually we track all arguments as we do not and cannot
+     * know which arguments will be used as scripts and which will not.
+     */
 
+    if (iPtr->lineLAPtr->numEntries && !TclInExit()) {
 	/*
-	 * Location stack for uplevel/eval/... scripts which were passed
-	 * through proc arguments. Actually we track all arguments as we
-	 * don't, cannot know which arguments will be used as scripts and
-	 * which won't.
+	 * When the interp goes away we have nothing on the stack, so there
+	 * are no arguments, so this table has to be empty.
 	 */
 
-	if (iPtr->lineLAPtr->numEntries) {
-	    /*
-	     * When the interp goes away we have nothing on the stack, so
-	     * there are no arguments, so this table has to be empty.
-	     */
+	Tcl_Panic("Argument location tracking table not empty");
+    }
 
-	    Tcl_Panic ("Argument location tracking table not empty");
-	}
+    Tcl_DeleteHashTable(iPtr->lineLAPtr);
+    Tcl_Free(iPtr->lineLAPtr);
+    iPtr->lineLAPtr = NULL;
 
-	Tcl_DeleteHashTable (iPtr->lineLAPtr);
-	ckfree((char*) iPtr->lineLAPtr);
-	iPtr->lineLAPtr = NULL;
+    if (iPtr->lineLABCPtr->numEntries && !TclInExit()) {
+	/*
+	 * When the interp goes away we have nothing on the stack, so there
+	 * are no arguments, so this table has to be empty.
+	 */
 
-	if (iPtr->lineLABCPtr->numEntries) {
-	    /*
-	     * When the interp goes away we have nothing on the stack, so
-	     * there are no arguments, so this table has to be empty.
-	     */
+	Tcl_Panic("Argument location tracking table not empty");
+    }
 
-	    Tcl_Panic ("Argument location tracking table not empty");
-	}
+    Tcl_DeleteHashTable(iPtr->lineLABCPtr);
+    Tcl_Free(iPtr->lineLABCPtr);
+    iPtr->lineLABCPtr = NULL;
 
-	Tcl_DeleteHashTable (iPtr->lineLABCPtr);
-	ckfree((char*) iPtr->lineLABCPtr);
-	iPtr->lineLABCPtr = NULL;
-    }
+    /*
+     * Squelch the tables of traces on variables and searches over arrays in
+     * the in the interpreter.
+     */
 
     Tcl_DeleteHashTable(&iPtr->varTraces);
     Tcl_DeleteHashTable(&iPtr->varSearches);
 
-    ckfree((char *) iPtr);
+    Tcl_Free(iPtr);
 }
 
 /*
@@ -1570,9 +2218,10 @@ Tcl_HideCommand(
      */
 
     if (strstr(hiddenCmdToken, "::") != NULL) {
-	Tcl_AppendResult(interp,
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
 		"cannot use namespace qualifiers in hidden command"
-		" token (rename)", NULL);
+		" token (rename)", TCL_INDEX_NONE));
+	Tcl_SetErrorCode(interp, "TCL", "VALUE", "HIDDENTOKEN", (char *)NULL);
 	return TCL_ERROR;
     }
 
@@ -1594,8 +2243,10 @@ Tcl_HideCommand(
      */
 
     if (cmdPtr->nsPtr != iPtr->globalNsPtr) {
-	Tcl_AppendResult(interp, "can only hide global namespace commands"
-		" (use rename then hide)", NULL);
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"can only hide global namespace commands (use rename then hide)",
+		TCL_INDEX_NONE));
+	Tcl_SetErrorCode(interp, "TCL", "HIDE", "NON_GLOBAL", (char *)NULL);
 	return TCL_ERROR;
     }
 
@@ -1605,8 +2256,7 @@ Tcl_HideCommand(
 
     hiddenCmdTablePtr = iPtr->hiddenCmdTablePtr;
     if (hiddenCmdTablePtr == NULL) {
-	hiddenCmdTablePtr = (Tcl_HashTable *)
-		ckalloc((unsigned) sizeof(Tcl_HashTable));
+	hiddenCmdTablePtr = (Tcl_HashTable *)Tcl_Alloc(sizeof(Tcl_HashTable));
 	Tcl_InitHashTable(hiddenCmdTablePtr, TCL_STRING_KEYS);
 	iPtr->hiddenCmdTablePtr = hiddenCmdTablePtr;
     }
@@ -1619,21 +2269,23 @@ Tcl_HideCommand(
 
     hPtr = Tcl_CreateHashEntry(hiddenCmdTablePtr, hiddenCmdToken, &isNew);
     if (!isNew) {
-	Tcl_AppendResult(interp, "hidden command named \"", hiddenCmdToken,
-		"\" already exists", NULL);
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"hidden command named \"%s\" already exists",
+		hiddenCmdToken));
+	Tcl_SetErrorCode(interp, "TCL", "HIDE", "ALREADY_HIDDEN", (char *)NULL);
 	return TCL_ERROR;
     }
 
     /*
-     * NB: This code is currently 'like' a rename to a specialy set apart name
+     * NB: This code is currently 'like' a rename to a special separate name
      * table. Changes here and in TclRenameCommand must be kept in synch until
      * the common parts are actually factorized out.
      */
 
     /*
      * Remove the hash entry for the command from the interpreter command
-     * table. This is like deleting the command, so bump its command epoch;
-     * this invalidates any cached references that point to the command.
+     * table. This is like deleting the command, so bump its command epoch
+     * to invalidate any cached references that point to the command.
      */
 
     if (cmdPtr->hPtr != NULL) {
@@ -1721,8 +2373,10 @@ Tcl_ExposeCommand(
      */
 
     if (strstr(cmdName, "::") != NULL) {
-	Tcl_AppendResult(interp, "cannot expose to a namespace "
-		"(use expose to toplevel, then rename)", NULL);
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"cannot expose to a namespace (use expose to toplevel, then rename)",
+		TCL_INDEX_NONE));
+	Tcl_SetErrorCode(interp, "TCL", "EXPOSE", "NON_GLOBAL", (char *)NULL);
 	return TCL_ERROR;
     }
 
@@ -1736,27 +2390,29 @@ Tcl_ExposeCommand(
 	hPtr = Tcl_FindHashEntry(hiddenCmdTablePtr, hiddenCmdToken);
     }
     if (hPtr == NULL) {
-	Tcl_AppendResult(interp, "unknown hidden command \"", hiddenCmdToken,
-		"\"", NULL);
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"unknown hidden command \"%s\"", hiddenCmdToken));
+	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "HIDDENTOKEN",
+		hiddenCmdToken, (char *)NULL);
 	return TCL_ERROR;
     }
-    cmdPtr = Tcl_GetHashValue(hPtr);
+    cmdPtr = (Command *)Tcl_GetHashValue(hPtr);
 
     /*
      * Check that we have a true global namespace command (enforced by
-     * Tcl_HideCommand() but let's double check. (If it was not, we would not
+     * Tcl_HideCommand but let's double check. (If it was not, we would not
      * really know how to handle it).
      */
 
     if (cmdPtr->nsPtr != iPtr->globalNsPtr) {
 	/*
-	 * This case is theoritically impossible, we might rather Tcl_Panic()
+	 * This case is theoretically impossible, we might rather Tcl_Panic
 	 * than 'nicely' erroring out ?
 	 */
 
-	Tcl_AppendResult(interp,
-		"trying to expose a non global command name space command",
-		NULL);
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"trying to expose a non-global command namespace command",
+		TCL_INDEX_NONE));
 	return TCL_ERROR;
     }
 
@@ -1773,12 +2429,24 @@ Tcl_ExposeCommand(
 
     hPtr = Tcl_CreateHashEntry(&nsPtr->cmdTable, cmdName, &isNew);
     if (!isNew) {
-	Tcl_AppendResult(interp, "exposed command \"", cmdName,
-		"\" already exists", NULL);
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"exposed command \"%s\" already exists", cmdName));
+	Tcl_SetErrorCode(interp, "TCL", "EXPOSE", "COMMAND_EXISTS", (char *)NULL);
 	return TCL_ERROR;
     }
 
     /*
+     * Command resolvers (per-interp, per-namespace) might have resolved to a
+     * command for the given namespace scope with this command not being
+     * registered with the namespace's command table. During BC compilation,
+     * the so-resolved command turns into a CmdName literal. Without
+     * invalidating a possible CmdName literal here explicitly, such literals
+     * keep being reused while pointing to overhauled commands.
+     */
+
+    TclInvalidateCmdLiteral(interp, cmdName, nsPtr);
+
+    /*
      * The list of command exported from the namespace might have changed.
      * However, we do not need to recompute this just yet; next time we need
      * the info will be soon enough.
@@ -1844,7 +2512,7 @@ Tcl_ExposeCommand(
  *	In the future, when cmdName is seen as the name of a command by
  *	Tcl_Eval, proc will be called. To support the bytecode interpreter,
  *	the command is created with a wrapper Tcl_ObjCmdProc
- *	(TclInvokeStringCommand) that eventially calls proc. When the command
+ *	(InvokeStringCommand) that eventually calls proc. When the command
  *	is deleted from the table, deleteProc will be called. See the manual
  *	entry for details on the calling sequence.
  *
@@ -1860,7 +2528,7 @@ Tcl_CreateCommand(
 				 * specified namespace; otherwise it is put in
 				 * the global namespace. */
     Tcl_CmdProc *proc,		/* Function to associate with cmdName. */
-    ClientData clientData,	/* Arbitrary value passed to string proc. */
+    void *clientData,		/* Arbitrary value passed to string proc. */
     Tcl_CmdDeleteProc *deleteProc)
 				/* If not NULL, gives a function to call when
 				 * this command is deleted. */
@@ -1891,43 +2559,45 @@ Tcl_CreateCommand(
      */
 
     while (1) {
-        /*
-         * Determine where the command should reside. If its name contains
-         * namespace qualifiers, we put it in the specified namespace;
+	/*
+	 * Determine where the command should reside. If its name contains
+	 * namespace qualifiers, we put it in the specified namespace;
 	 * otherwise, we always put it in the global namespace.
-         */
+	 */
 
-        if (strstr(cmdName, "::") != NULL) {
+	if (strstr(cmdName, "::") != NULL) {
 	    Namespace *dummy1, *dummy2;
 
 	    TclGetNamespaceForQualName(interp, cmdName, NULL,
 		    TCL_CREATE_NS_IF_UNKNOWN, &nsPtr, &dummy1, &dummy2, &tail);
 	    if ((nsPtr == NULL) || (tail == NULL)) {
-	        return (Tcl_Command) NULL;
+		return (Tcl_Command) NULL;
 	    }
-        } else {
+	} else {
 	    nsPtr = iPtr->globalNsPtr;
 	    tail = cmdName;
-        }
+	}
 
-        hPtr = Tcl_CreateHashEntry(&nsPtr->cmdTable, tail, &isNew);
+	hPtr = Tcl_CreateHashEntry(&nsPtr->cmdTable, tail, &isNew);
 
-        if (isNew || deleted) {
+	if (isNew || deleted) {
 	    /*
 	     * isNew - No conflict with existing command.
 	     * deleted - We've already deleted a conflicting command
 	     */
 	    break;
-        }
+	}
+
+	/*
+	 * An existing command conflicts. Try to delete it...
+	 */
 
-	/* An existing command conflicts. Try to delete it.. */
-	cmdPtr = Tcl_GetHashValue(hPtr);
+	cmdPtr = (Command *)Tcl_GetHashValue(hPtr);
 
 	/*
-	 * Be careful to preserve
-	 * any existing import links so we can restore them down below. That
-	 * way, you can redefine a command and its import status will remain
-	 * intact.
+	 * Be careful to preserve any existing import links so we can restore
+	 * them down below. That way, you can redefine a command and its
+	 * import status will remain intact.
 	 */
 
 	cmdPtr->refCount++;
@@ -1947,15 +2617,26 @@ Tcl_CreateCommand(
 
     if (!isNew) {
 	/*
-	 * If the deletion callback recreated the command, just throw away
-	 * the new command (if we try to delete it again, we could get
-	 * stuck in an infinite loop).
+	 * If the deletion callback recreated the command, just throw away the
+	 * new command (if we try to delete it again, we could get stuck in an
+	 * infinite loop).
 	 */
 
-	ckfree((char *) Tcl_GetHashValue(hPtr));
+	Tcl_Free(Tcl_GetHashValue(hPtr));
     }
 
     if (!deleted) {
+	/*
+	 * Command resolvers (per-interp, per-namespace) might have resolved
+	 * to a command for the given namespace scope with this command not
+	 * being registered with the namespace's command table. During BC
+	 * compilation, the so-resolved command turns into a CmdName literal.
+	 * Without invalidating a possible CmdName literal here explicitly,
+	 * such literals keep being reused while pointing to overhauled
+	 * commands.
+	 */
+
+	TclInvalidateCmdLiteral(interp, tail, nsPtr);
 
 	/*
 	 * The list of command exported from the namespace might have changed.
@@ -1966,14 +2647,14 @@ Tcl_CreateCommand(
 	TclInvalidateNsCmdLookup(nsPtr);
 	TclInvalidateNsPath(nsPtr);
     }
-    cmdPtr = (Command *) ckalloc(sizeof(Command));
+    cmdPtr = (Command *)Tcl_Alloc(sizeof(Command));
     Tcl_SetHashValue(hPtr, cmdPtr);
     cmdPtr->hPtr = hPtr;
     cmdPtr->nsPtr = nsPtr;
     cmdPtr->refCount = 1;
     cmdPtr->cmdEpoch = 0;
     cmdPtr->compileProc = NULL;
-    cmdPtr->objProc = TclInvokeStringCommand;
+    cmdPtr->objProc = InvokeStringCommand;
     cmdPtr->objClientData = cmdPtr;
     cmdPtr->proc = proc;
     cmdPtr->clientData = clientData;
@@ -1982,6 +2663,7 @@ Tcl_CreateCommand(
     cmdPtr->flags = 0;
     cmdPtr->importRefPtr = NULL;
     cmdPtr->tracePtr = NULL;
+    cmdPtr->nreProc = NULL;
 
     /*
      * Plug in any existing import references found above. Be sure to update
@@ -1992,7 +2674,7 @@ Tcl_CreateCommand(
 	cmdPtr->importRefPtr = oldRefPtr;
 	while (oldRefPtr != NULL) {
 	    Command *refCmdPtr = oldRefPtr->importedCmdPtr;
-	    dataPtr = refCmdPtr->objClientData;
+	    dataPtr = (ImportedCmdData *)refCmdPtr->objClientData;
 	    dataPtr->realCmdPtr = cmdPtr;
 	    oldRefPtr = oldRefPtr->nextPtr;
 	}
@@ -2023,7 +2705,6 @@ Tcl_CreateCommand(
  * Side effects:
  *	If a command named "cmdName" already exists for interp, it is
  *	first deleted.  Then the new command is created from the arguments.
- *	[***] (See below for exception).
  *
  *	In the future, during bytecode evaluation when "cmdName" is seen as
  *	the name of a command by Tcl_EvalObj or Tcl_Eval, the object-based
@@ -2034,6 +2715,69 @@ Tcl_CreateCommand(
  *----------------------------------------------------------------------
  */
 
+typedef struct {
+    Tcl_ObjCmdProc2 *proc;
+    void *clientData;	/* Arbitrary value to pass to proc function. */
+    Tcl_CmdDeleteProc *deleteProc;
+    void *deleteData;	/* Arbitrary value to pass to deleteProc function. */
+    Tcl_ObjCmdProc2 *nreProc;
+} CmdWrapperInfo;
+
+static int
+cmdWrapperProc(
+    void *clientData,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj * const *objv)
+{
+    CmdWrapperInfo *info = (CmdWrapperInfo *) clientData;
+    if (objc < 0) {
+	objc = -1;
+    }
+    return info->proc(info->clientData, interp, objc, objv);
+}
+
+static void
+cmdWrapperDeleteProc(
+    void *clientData)
+{
+    CmdWrapperInfo *info = (CmdWrapperInfo *) clientData;
+
+    clientData = info->deleteData;
+    Tcl_CmdDeleteProc *deleteProc = info->deleteProc;
+    Tcl_Free(info);
+    if (deleteProc != NULL) {
+	deleteProc(clientData);
+    }
+}
+
+Tcl_Command
+Tcl_CreateObjCommand2(
+    Tcl_Interp *interp,		/* Token for command interpreter (returned by
+				 * previous call to Tcl_CreateInterp). */
+    const char *cmdName,	/* Name of command. If it contains namespace
+				 * qualifiers, the new command is put in the
+				 * specified namespace; otherwise it is put in
+				 * the global namespace. */
+    Tcl_ObjCmdProc2 *proc,	/* Object-based function to associate with
+				 * name. */
+    void *clientData,		/* Arbitrary value to pass to object
+				 * function. */
+    Tcl_CmdDeleteProc *deleteProc)
+				/* If not NULL, gives a function to call when
+				 * this command is deleted. */
+{
+    CmdWrapperInfo *info = (CmdWrapperInfo *)Tcl_Alloc(sizeof(CmdWrapperInfo));
+    info->proc = proc;
+    info->clientData = clientData;
+    info->deleteProc = deleteProc;
+    info->deleteData = clientData;
+
+    return Tcl_CreateObjCommand(interp, cmdName,
+	    (proc ? cmdWrapperProc : NULL),
+	    info, cmdWrapperDeleteProc);
+}
+
 Tcl_Command
 Tcl_CreateObjCommand(
     Tcl_Interp *interp,		/* Token for command interpreter (returned by
@@ -2044,89 +2788,94 @@ Tcl_CreateObjCommand(
 				 * the global namespace. */
     Tcl_ObjCmdProc *proc,	/* Object-based function to associate with
 				 * name. */
-    ClientData clientData,	/* Arbitrary value to pass to object
-    				 * function. */
+    void *clientData,		/* Arbitrary value to pass to object
+				 * function. */
     Tcl_CmdDeleteProc *deleteProc)
 				/* If not NULL, gives a function to call when
 				 * this command is deleted. */
 {
-    Interp *iPtr = (Interp *) interp;
-    ImportRef *oldRefPtr = NULL;
+    Interp *iPtr = (Interp *)interp;
     Namespace *nsPtr;
-    Command *cmdPtr;
-    Tcl_HashEntry *hPtr;
     const char *tail;
-    int isNew = 0, deleted = 0;
-    ImportedCmdData *dataPtr;
 
     if (iPtr->flags & DELETED) {
 	/*
 	 * The interpreter is being deleted. Don't create any new commands;
 	 * it's not safe to muck with the interpreter anymore.
 	 */
-
-	return (Tcl_Command) NULL;
+	return NULL;
     }
 
     /*
-     * If the command name we seek to create already exists, we need to
-     * delete that first.  That can be tricky in the presence of traces.
-     * Loop until we no longer find an existing command in the way, or
-     * until we've deleted one command and that didn't finish the job.
+     * Determine where the command should reside. If its name contains
+     * namespace qualifiers, we put it in the specified namespace;
+     * otherwise, we always put it in the global namespace.
      */
 
-    while (1) {
-        /*
-         * Determine where the command should reside. If its name contains
-         * namespace qualifiers, we put it in the specified namespace;
-	 * otherwise, we always put it in the global namespace.
-         */
+    if (strstr(cmdName, "::") != NULL) {
+	Namespace *dummy1, *dummy2;
 
-        if (strstr(cmdName, "::") != NULL) {
-	    Namespace *dummy1, *dummy2;
+	TclGetNamespaceForQualName(interp, cmdName, NULL,
+	    TCL_CREATE_NS_IF_UNKNOWN, &nsPtr, &dummy1, &dummy2, &tail);
+	if ((nsPtr == NULL) || (tail == NULL)) {
+	    return (Tcl_Command) NULL;
+	}
+    } else {
+	nsPtr = iPtr->globalNsPtr;
+	tail = cmdName;
+    }
 
-	    TclGetNamespaceForQualName(interp, cmdName, NULL,
-		TCL_CREATE_NS_IF_UNKNOWN, &nsPtr, &dummy1, &dummy2, &tail);
-	    if ((nsPtr == NULL) || (tail == NULL)) {
-	        return (Tcl_Command) NULL;
-	    }
-        } else {
-	    nsPtr = iPtr->globalNsPtr;
-	    tail = cmdName;
-        }
+    return TclCreateObjCommandInNs(interp, tail, (Tcl_Namespace *) nsPtr,
+	proc, clientData, deleteProc);
+}
 
-        hPtr = Tcl_CreateHashEntry(&nsPtr->cmdTable, tail, &isNew);
+Tcl_Command
+TclCreateObjCommandInNs(
+    Tcl_Interp *interp,
+    const char *cmdName,	/* Name of command, without any namespace
+				 * components. */
+    Tcl_Namespace *namesp,	/* The namespace to create the command in */
+    Tcl_ObjCmdProc *proc,	/* Object-based function to associate with
+				 * name. */
+    void *clientData,		/* Arbitrary value to pass to object
+				 * function. */
+    Tcl_CmdDeleteProc *deleteProc)
+				/* If not NULL, gives a function to call when
+				 * this command is deleted. */
+{
+    int deleted = 0, isNew = 0;
+    Command *cmdPtr;
+    ImportRef *oldRefPtr = NULL;
+    ImportedCmdData *dataPtr;
+    Tcl_HashEntry *hPtr;
+    Namespace *nsPtr = (Namespace *) namesp;
+
+    /*
+     * If the command name we seek to create already exists, we need to delete
+     * that first. That can be tricky in the presence of traces. Loop until we
+     * no longer find an existing command in the way, or until we've deleted
+     * one command and that didn't finish the job.
+     */
+
+    while (1) {
+	hPtr = Tcl_CreateHashEntry(&nsPtr->cmdTable, cmdName, &isNew);
 
-        if (isNew || deleted) {
+	if (isNew || deleted) {
 	    /*
 	     * isNew - No conflict with existing command.
 	     * deleted - We've already deleted a conflicting command
 	     */
 	    break;
-        }
-
-	/* An existing command conflicts. Try to delete it.. */
-	cmdPtr = Tcl_GetHashValue(hPtr);
+	}
 
 	/*
-	 * [***] This is wrong.  See Tcl Bug a16752c252.
-	 * However, this buggy behavior is kept under particular
-	 * circumstances to accommodate deployed binaries of the
-	 * "tclcompiler" program. http://sourceforge.net/projects/tclpro/
-	 * that crash if the bug is fixed.
+	 * An existing command conflicts. Try to delete it...
 	 */
 
-	if (cmdPtr->objProc == TclInvokeStringCommand
-		&& cmdPtr->clientData == clientData
-		&& cmdPtr->deleteData == clientData
-		&& cmdPtr->deleteProc == deleteProc) {
-	    cmdPtr->objProc = proc;
-	    cmdPtr->objClientData = clientData;
-	    return (Tcl_Command) cmdPtr;
-	}
+	cmdPtr = (Command *)Tcl_GetHashValue(hPtr);
 
 	/*
-	 * Otherwise, we delete the old command. Be careful to preserve any
+	 * Command already exists; delete it. Be careful to preserve any
 	 * existing import links so we can restore them down below. That way,
 	 * you can redefine a command and its import status will remain
 	 * intact.
@@ -2137,7 +2886,16 @@ Tcl_CreateObjCommand(
 	    cmdPtr->flags |= CMD_REDEF_IN_PROGRESS;
 	}
 
+	/*
+	 * Make sure namespace doesn't get deallocated.
+	 */
+
+	cmdPtr->nsPtr->refCount++;
+
 	Tcl_DeleteCommandFromToken(interp, (Tcl_Command) cmdPtr);
+	nsPtr = (Namespace *) TclEnsureNamespace(interp,
+		(Tcl_Namespace *) cmdPtr->nsPtr);
+	TclNsDecrRefCount(cmdPtr->nsPtr);
 
 	if (cmdPtr->flags & CMD_REDEF_IN_PROGRESS) {
 	    oldRefPtr = cmdPtr->importRefPtr;
@@ -2146,19 +2904,30 @@ Tcl_CreateObjCommand(
 	TclCleanupCommandMacro(cmdPtr);
 	deleted = 1;
     }
-
     if (!isNew) {
 	/*
-	 * If the deletion callback recreated the command, just throw away
-	 * the new command (if we try to delete it again, we could get
-	 * stuck in an infinite loop).
+	 * If the deletion callback recreated the command, just throw away the
+	 * new command (if we try to delete it again, we could get stuck in an
+	 * infinite loop).
 	 */
 
-	ckfree(Tcl_GetHashValue(hPtr));
+	Tcl_Free(Tcl_GetHashValue(hPtr));
     }
 
     if (!deleted) {
 	/*
+	 * Command resolvers (per-interp, per-namespace) might have resolved
+	 * to a command for the given namespace scope with this command not
+	 * being registered with the namespace's command table. During BC
+	 * compilation, the so-resolved command turns into a CmdName literal.
+	 * Without invalidating a possible CmdName literal here explicitly,
+	 * such literals keep being reused while pointing to overhauled
+	 * commands.
+	 */
+
+	TclInvalidateCmdLiteral(interp, cmdName, nsPtr);
+
+	/*
 	 * The list of command exported from the namespace might have changed.
 	 * However, we do not need to recompute this just yet; next time we
 	 * need the info will be soon enough.
@@ -2167,7 +2936,7 @@ Tcl_CreateObjCommand(
 	TclInvalidateNsCmdLookup(nsPtr);
 	TclInvalidateNsPath(nsPtr);
     }
-    cmdPtr = (Command *) ckalloc(sizeof(Command));
+    cmdPtr = (Command *)Tcl_Alloc(sizeof(Command));
     Tcl_SetHashValue(hPtr, cmdPtr);
     cmdPtr->hPtr = hPtr;
     cmdPtr->nsPtr = nsPtr;
@@ -2176,13 +2945,14 @@ Tcl_CreateObjCommand(
     cmdPtr->compileProc = NULL;
     cmdPtr->objProc = proc;
     cmdPtr->objClientData = clientData;
-    cmdPtr->proc = TclInvokeObjectCommand;
-    cmdPtr->clientData = cmdPtr;
+    cmdPtr->proc = NULL;
+    cmdPtr->clientData = NULL;
     cmdPtr->deleteProc = deleteProc;
     cmdPtr->deleteData = clientData;
     cmdPtr->flags = 0;
     cmdPtr->importRefPtr = NULL;
     cmdPtr->tracePtr = NULL;
+    cmdPtr->nreProc = NULL;
 
     /*
      * Plug in any existing import references found above. Be sure to update
@@ -2193,7 +2963,10 @@ Tcl_CreateObjCommand(
 	cmdPtr->importRefPtr = oldRefPtr;
 	while (oldRefPtr != NULL) {
 	    Command *refCmdPtr = oldRefPtr->importedCmdPtr;
-	    dataPtr = refCmdPtr->objClientData;
+
+	    dataPtr = (ImportedCmdData*)refCmdPtr->objClientData;
+	    cmdPtr->refCount++;
+	    TclCleanupCommandMacro(dataPtr->realCmdPtr);
 	    dataPtr->realCmdPtr = cmdPtr;
 	    oldRefPtr = oldRefPtr->nextPtr;
 	}
@@ -2213,7 +2986,7 @@ Tcl_CreateObjCommand(
 /*
  *----------------------------------------------------------------------
  *
- * TclInvokeStringCommand --
+ * InvokeStringCommand --
  *
  *	"Wrapper" Tcl_ObjCmdProc used to call an existing string-based
  *	Tcl_CmdProc if no object-based function exists for a command. A
@@ -2226,25 +2999,25 @@ Tcl_CreateObjCommand(
  *
  * Side effects:
  *	Besides those side effects of the called Tcl_CmdProc,
- *	TclInvokeStringCommand allocates and frees storage.
+ *	InvokeStringCommand allocates and frees storage.
  *
  *----------------------------------------------------------------------
  */
 
 int
-TclInvokeStringCommand(
-    ClientData clientData,	/* Points to command's Command structure. */
+InvokeStringCommand(
+    void *clientData,		/* Points to command's Command structure. */
     Tcl_Interp *interp,		/* Current interpreter. */
-    register int objc,		/* Number of arguments. */
+    int objc,			/* Number of arguments. */
     Tcl_Obj *const objv[])	/* Argument objects. */
 {
-    Command *cmdPtr = clientData;
+    Command *cmdPtr = (Command *)clientData;
     int i, result;
     const char **argv = (const char **)
-	    TclStackAlloc(interp, (unsigned)(objc + 1) * sizeof(char *));
+	    TclStackAlloc(interp, (objc + 1) * sizeof(char *));
 
-    for (i = 0;  i < objc;  i++) {
-	argv[i] = Tcl_GetString(objv[i]);
+    for (i = 0; i < objc; i++) {
+	argv[i] = TclGetString(objv[i]);
     }
     argv[objc] = 0;
 
@@ -2252,7 +3025,7 @@ TclInvokeStringCommand(
      * Invoke the command's string-based Tcl_CmdProc.
      */
 
-    result = (*cmdPtr->proc)(cmdPtr->clientData, interp, objc, argv);
+    result = cmdPtr->proc(cmdPtr->clientData, interp, objc, argv);
 
     TclStackFree(interp, (void *) argv);
     return result;
@@ -2261,73 +3034,6 @@ TclInvokeStringCommand(
 /*
  *----------------------------------------------------------------------
  *
- * TclInvokeObjectCommand --
- *
- *	"Wrapper" Tcl_CmdProc used to call an existing object-based
- *	Tcl_ObjCmdProc if no string-based function exists for a command. A
- *	pointer to this function is stored as the Tcl_CmdProc in a Command
- *	structure. It simply turns around and calls the object Tcl_ObjCmdProc
- *	in the Command structure.
- *
- * Results:
- *	A standard Tcl string result value.
- *
- * Side effects:
- *	Besides those side effects of the called Tcl_ObjCmdProc,
- *	TclInvokeObjectCommand allocates and frees storage.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TclInvokeObjectCommand(
-    ClientData clientData,	/* Points to command's Command structure. */
-    Tcl_Interp *interp,		/* Current interpreter. */
-    int argc,			/* Number of arguments. */
-    register const char **argv)	/* Argument strings. */
-{
-    Command *cmdPtr = (Command *) clientData;
-    Tcl_Obj *objPtr;
-    int i, length, result;
-    Tcl_Obj **objv = (Tcl_Obj **)
-	    TclStackAlloc(interp, (unsigned)(argc * sizeof(Tcl_Obj *)));
-
-    for (i = 0;  i < argc;  i++) {
-	length = strlen(argv[i]);
-	TclNewStringObj(objPtr, argv[i], length);
-	Tcl_IncrRefCount(objPtr);
-	objv[i] = objPtr;
-    }
-
-    /*
-     * Invoke the command's object-based Tcl_ObjCmdProc.
-     */
-
-    result = (*cmdPtr->objProc)(cmdPtr->objClientData, interp, argc, objv);
-
-    /*
-     * Move the interpreter's object result to the string result, then reset
-     * the object result.
-     */
-
-    (void) Tcl_GetStringResult(interp);
-
-    /*
-     * Decrement the ref counts for the argument objects created above, then
-     * free the objv array if malloc'ed storage was used.
-     */
-
-    for (i = 0;  i < argc;  i++) {
-	objPtr = objv[i];
-	Tcl_DecrRefCount(objPtr);
-    }
-    TclStackFree(interp, objv);
-    return result;
-}
-
-/*
- *----------------------------------------------------------------------
- *
  * TclRenameCommand --
  *
  *	Called to give an existing Tcl command a different name. Both the old
@@ -2373,15 +3079,13 @@ TclRenameCommand(
     cmd = Tcl_FindCommand(interp, oldName, NULL, /*flags*/ 0);
     cmdPtr = (Command *) cmd;
     if (cmdPtr == NULL) {
-	Tcl_AppendResult(interp, "can't ",
-		((newName == NULL)||(*newName == '\0'))? "delete":"rename",
-		" \"", oldName, "\": command doesn't exist", NULL);
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"can't %s \"%s\": command doesn't exist",
+		((newName == NULL) || (*newName == '\0')) ? "delete" : "rename",
+		oldName));
+	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "COMMAND", oldName, (char *)NULL);
 	return TCL_ERROR;
     }
-    cmdNsPtr = cmdPtr->nsPtr;
-    oldFullName = Tcl_NewObj();
-    Tcl_IncrRefCount(oldFullName);
-    Tcl_GetCommandFullName(interp, cmd, oldFullName);
 
     /*
      * If the new command name is NULL or empty, delete the command. Do this
@@ -2390,35 +3094,42 @@ TclRenameCommand(
 
     if ((newName == NULL) || (*newName == '\0')) {
 	Tcl_DeleteCommandFromToken(interp, cmd);
-	result = TCL_OK;
-	goto done;
+	return TCL_OK;
     }
 
+    cmdNsPtr = cmdPtr->nsPtr;
+    TclNewObj(oldFullName);
+    Tcl_IncrRefCount(oldFullName);
+    Tcl_GetCommandFullName(interp, cmd, oldFullName);
+
     /*
      * Make sure that the destination command does not already exist. The
      * rename operation is like creating a command, so we should automatically
-     * create the containing namespaces just like Tcl_CreateCommand would.
+     * create the containing namespaces just like Tcl_CreateObjCommand would.
      */
 
     TclGetNamespaceForQualName(interp, newName, NULL,
 	    TCL_CREATE_NS_IF_UNKNOWN, &newNsPtr, &dummy1, &dummy2, &newTail);
 
     if ((newNsPtr == NULL) || (newTail == NULL)) {
-	Tcl_AppendResult(interp, "can't rename to \"", newName,
-		"\": bad command name", NULL);
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"can't rename to \"%s\": bad command name", newName));
+	Tcl_SetErrorCode(interp, "TCL", "VALUE", "COMMAND", (char *)NULL);
 	result = TCL_ERROR;
 	goto done;
     }
     if (Tcl_FindHashEntry(&newNsPtr->cmdTable, newTail) != NULL) {
-	Tcl_AppendResult(interp, "can't rename to \"", newName,
-		 "\": command already exists", NULL);
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"can't rename to \"%s\": command already exists", newName));
+	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "RENAME",
+		"TARGET_EXISTS", (char *)NULL);
 	result = TCL_ERROR;
 	goto done;
     }
 
     /*
      * Warning: any changes done in the code here are likely to be needed in
-     * Tcl_HideCommand() code too (until the common parts are extracted out).
+     * Tcl_HideCommand code too (until the common parts are extracted out).
      * - dl
      */
 
@@ -2459,6 +3170,17 @@ TclRenameCommand(
     TclInvalidateNsCmdLookup(cmdPtr->nsPtr);
 
     /*
+     * Command resolvers (per-interp, per-namespace) might have resolved to a
+     * command for the given namespace scope with this command not being
+     * registered with the namespace's command table. During BC compilation,
+     * the so-resolved command turns into a CmdName literal. Without
+     * invalidating a possible CmdName literal here explicitly, such literals
+     * keep being reused while pointing to overhauled commands.
+     */
+
+    TclInvalidateCmdLiteral(interp, newTail, cmdPtr->nsPtr);
+
+    /*
      * Script for rename traces can delete the command "oldName". Therefore
      * increment the reference count for cmdPtr so that it's Command structure
      * is freed only towards the end of this function by calling
@@ -2471,13 +3193,13 @@ TclRenameCommand(
      */
 
     Tcl_DStringInit(&newFullName);
-    Tcl_DStringAppend(&newFullName, newNsPtr->fullName, -1);
+    Tcl_DStringAppend(&newFullName, newNsPtr->fullName, TCL_INDEX_NONE);
     if (newNsPtr != iPtr->globalNsPtr) {
-	Tcl_DStringAppend(&newFullName, "::", 2);
+	TclDStringAppendLiteral(&newFullName, "::");
     }
-    Tcl_DStringAppend(&newFullName, newTail, -1);
+    Tcl_DStringAppend(&newFullName, newTail, TCL_INDEX_NONE);
     cmdPtr->refCount++;
-    CallCommandTraces(iPtr, cmdPtr, Tcl_GetString(oldFullName),
+    CallCommandTraces(iPtr, cmdPtr, TclGetString(oldFullName),
 	    Tcl_DStringValue(&newFullName), TCL_TRACE_RENAME);
     Tcl_DStringFree(&newFullName);
 
@@ -2570,6 +3292,42 @@ Tcl_SetCommandInfo(
  *----------------------------------------------------------------------
  */
 
+static int
+invokeObj2Command(
+    void *clientData,		/* Points to command's Command structure. */
+    Tcl_Interp *interp,		/* Current interpreter. */
+    Tcl_Size objc,		/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Argument objects. */
+{
+    int result;
+    Command *cmdPtr = (Command *)clientData;
+
+    if (objc > INT_MAX) {
+	return TclCommandWordLimitError(interp, objc);
+    }
+    if (cmdPtr->objProc != NULL) {
+	result = cmdPtr->objProc(cmdPtr->objClientData, interp, objc, objv);
+    } else {
+	result = Tcl_NRCallObjProc(interp, cmdPtr->nreProc,
+		cmdPtr->objClientData, objc, objv);
+    }
+    return result;
+}
+
+static int
+cmdWrapper2Proc(
+    void *clientData,
+    Tcl_Interp *interp,
+    Tcl_Size objc,
+    Tcl_Obj *const objv[])
+{
+    Command *cmdPtr = (Command *) clientData;
+    if (objc > INT_MAX) {
+	return TclCommandWordLimitError(interp, objc);
+    }
+    return cmdPtr->objProc(cmdPtr->objClientData, interp, objc, objv);
+}
+
 int
 Tcl_SetCommandInfoFromToken(
     Tcl_Command cmd,
@@ -2577,7 +3335,7 @@ Tcl_SetCommandInfoFromToken(
 {
     Command *cmdPtr;		/* Internal representation of the command */
 
-    if (cmd == (Tcl_Command) NULL) {
+    if (cmd == NULL) {
 	return 0;
     }
 
@@ -2589,14 +3347,46 @@ Tcl_SetCommandInfoFromToken(
     cmdPtr->proc = infoPtr->proc;
     cmdPtr->clientData = infoPtr->clientData;
     if (infoPtr->objProc == NULL) {
-	cmdPtr->objProc = TclInvokeStringCommand;
+	cmdPtr->objProc = InvokeStringCommand;
 	cmdPtr->objClientData = cmdPtr;
+	cmdPtr->nreProc = NULL;
     } else {
-	cmdPtr->objProc = infoPtr->objProc;
+	if (infoPtr->objProc != cmdPtr->objProc) {
+	    cmdPtr->nreProc = NULL;
+	    cmdPtr->objProc = infoPtr->objProc;
+	}
 	cmdPtr->objClientData = infoPtr->objClientData;
     }
-    cmdPtr->deleteProc = infoPtr->deleteProc;
-    cmdPtr->deleteData = infoPtr->deleteData;
+    if (cmdPtr->deleteProc == cmdWrapperDeleteProc) {
+	CmdWrapperInfo *info = (CmdWrapperInfo *) cmdPtr->deleteData;
+	if (infoPtr->objProc2 == NULL) {
+	    info->proc = invokeObj2Command;
+	    info->clientData = cmdPtr;
+	    info->nreProc = NULL;
+	} else {
+	    if (infoPtr->objProc2 != info->proc) {
+		info->nreProc = NULL;
+		info->proc = infoPtr->objProc2;
+	    }
+	    info->clientData = infoPtr->objClientData2;
+	}
+	info->deleteProc = infoPtr->deleteProc;
+	info->deleteData = infoPtr->deleteData;
+    } else {
+	if ((infoPtr->objProc2 != NULL) && (infoPtr->objProc2 != cmdWrapper2Proc)) {
+	    CmdWrapperInfo *info = (CmdWrapperInfo *)Tcl_Alloc(sizeof(CmdWrapperInfo));
+	    info->proc = infoPtr->objProc2;
+	    info->clientData = infoPtr->objClientData2;
+	    info->nreProc = NULL;
+	    info->deleteProc = infoPtr->deleteProc;
+	    info->deleteData = infoPtr->deleteData;
+	    cmdPtr->deleteProc = cmdWrapperDeleteProc;
+	    cmdPtr->deleteData = info;
+	} else {
+	    cmdPtr->deleteProc = infoPtr->deleteProc;
+	    cmdPtr->deleteData = infoPtr->deleteData;
+	}
+    }
     return 1;
 }
 
@@ -2657,26 +3447,39 @@ Tcl_GetCommandInfoFromToken(
 {
     Command *cmdPtr;		/* Internal representation of the command */
 
-    if (cmd == (Tcl_Command) NULL) {
+    if (cmd == NULL) {
 	return 0;
     }
 
     /*
      * Set isNativeObjectProc 1 if objProc was registered by a call to
-     * Tcl_CreateObjCommand. Otherwise set it to 0.
+     * Tcl_CreateObjCommand. Set isNativeObjectProc 2 if objProc was
+     * registered by a call to Tcl_CreateObjCommand2. Otherwise set it to 0.
      */
 
     cmdPtr = (Command *) cmd;
     infoPtr->isNativeObjectProc =
-	    (cmdPtr->objProc != TclInvokeStringCommand);
+	    (cmdPtr->objProc != InvokeStringCommand);
     infoPtr->objProc = cmdPtr->objProc;
     infoPtr->objClientData = cmdPtr->objClientData;
     infoPtr->proc = cmdPtr->proc;
     infoPtr->clientData = cmdPtr->clientData;
-    infoPtr->deleteProc = cmdPtr->deleteProc;
-    infoPtr->deleteData = cmdPtr->deleteData;
+    if (cmdPtr->deleteProc == cmdWrapperDeleteProc) {
+	CmdWrapperInfo *info = (CmdWrapperInfo *)cmdPtr->deleteData;
+	infoPtr->deleteProc = info->deleteProc;
+	infoPtr->deleteData = info->deleteData;
+	infoPtr->objProc2 = info->proc;
+	infoPtr->objClientData2 = info->clientData;
+	if (cmdPtr->objProc == cmdWrapperProc) {
+	    infoPtr->isNativeObjectProc = 2;
+	}
+    } else {
+	infoPtr->deleteProc = cmdPtr->deleteProc;
+	infoPtr->deleteData = cmdPtr->deleteData;
+	infoPtr->objProc2 = cmdWrapper2Proc;
+	infoPtr->objClientData2 = cmdPtr;
+    }
     infoPtr->namespacePtr = (Tcl_Namespace *) cmdPtr->nsPtr;
-
     return 1;
 }
 
@@ -2685,7 +3488,7 @@ Tcl_GetCommandInfoFromToken(
  *
  * Tcl_GetCommandName --
  *
- *	Given a token returned by Tcl_CreateCommand, this function returns the
+ *	Given a token returned by Tcl_CreateObjCommand, this function returns the
  *	current name of the command (which may have changed due to renaming).
  *
  * Results:
@@ -2699,9 +3502,9 @@ Tcl_GetCommandInfoFromToken(
 
 const char *
 Tcl_GetCommandName(
-    Tcl_Interp *interp,		/* Interpreter containing the command. */
+    TCL_UNUSED(Tcl_Interp *),
     Tcl_Command command)	/* Token for command returned by a previous
-				 * call to Tcl_CreateCommand. The command must
+				 * call to Tcl_CreateObjCommand. The command must
 				 * not have been deleted. */
 {
     Command *cmdPtr = (Command *) command;
@@ -2716,7 +3519,7 @@ Tcl_GetCommandName(
 	return "";
     }
 
-    return Tcl_GetHashKey(cmdPtr->hPtr->tablePtr, cmdPtr->hPtr);
+    return (const char *)Tcl_GetHashKey(cmdPtr->hPtr->tablePtr, cmdPtr->hPtr);
 }
 
 /*
@@ -2724,7 +3527,7 @@ Tcl_GetCommandName(
  *
  * Tcl_GetCommandFullName --
  *
- *	Given a token returned by, e.g., Tcl_CreateCommand or Tcl_FindCommand,
+ *	Given a token returned by, e.g., Tcl_CreateObjCommand or Tcl_FindCommand,
  *	this function appends to an object the command's full name, qualified
  *	by a sequence of parent namespace names. The command's fully-qualified
  *	name may have changed due to renaming.
@@ -2743,14 +3546,13 @@ void
 Tcl_GetCommandFullName(
     Tcl_Interp *interp,		/* Interpreter containing the command. */
     Tcl_Command command,	/* Token for command returned by a previous
-				 * call to Tcl_CreateCommand. The command must
+				 * call to Tcl_CreateObjCommand. The command must
 				 * not have been deleted. */
     Tcl_Obj *objPtr)		/* Points to the object onto which the
 				 * command's full name is appended. */
-
 {
     Interp *iPtr = (Interp *) interp;
-    register Command *cmdPtr = (Command *) command;
+    Command *cmdPtr = (Command *) command;
     char *name;
 
     /*
@@ -2758,16 +3560,16 @@ Tcl_GetCommandFullName(
      * separator, and the command name.
      */
 
-    if (cmdPtr != NULL) {
+    if ((cmdPtr != NULL) && TclRoutineHasName(cmdPtr)) {
 	if (cmdPtr->nsPtr != NULL) {
-	    Tcl_AppendToObj(objPtr, cmdPtr->nsPtr->fullName, -1);
+	    Tcl_AppendToObj(objPtr, cmdPtr->nsPtr->fullName, TCL_INDEX_NONE);
 	    if (cmdPtr->nsPtr != iPtr->globalNsPtr) {
 		Tcl_AppendToObj(objPtr, "::", 2);
 	    }
 	}
 	if (cmdPtr->hPtr != NULL) {
-	    name = Tcl_GetHashKey(cmdPtr->hPtr->tablePtr, cmdPtr->hPtr);
-	    Tcl_AppendToObj(objPtr, name, -1);
+	    name = (char *)Tcl_GetHashKey(cmdPtr->hPtr->tablePtr, cmdPtr->hPtr);
+	    Tcl_AppendToObj(objPtr, name, TCL_INDEX_NONE);
 	}
     }
 }
@@ -2802,7 +3604,7 @@ Tcl_DeleteCommand(
      */
 
     cmd = Tcl_FindCommand(interp, cmdName, NULL, /*flags*/ 0);
-    if (cmd == (Tcl_Command) NULL) {
+    if (cmd == NULL) {
 	return -1;
     }
     return Tcl_DeleteCommandFromToken(interp, cmd);
@@ -2840,13 +3642,6 @@ Tcl_DeleteCommandFromToken(
     Tcl_Command importCmd;
 
     /*
-     * Bump the command epoch counter. This will invalidate all cached
-     * references that point to this command.
-     */
-
-    cmdPtr->cmdEpoch++;
-
-    /*
      * The code here is tricky. We can't delete the hash table entry before
      * invoking the deletion callback because there are cases where the
      * deletion callback needs to invoke the command (e.g. object systems such
@@ -2855,7 +3650,7 @@ Tcl_DeleteCommandFromToken(
      * and skip nested deletes.
      */
 
-    if (cmdPtr->flags & CMD_IS_DELETED) {
+    if (cmdPtr->flags & CMD_DYING) {
 	/*
 	 * Another deletion is already in progress. Remove the hash table
 	 * entry now, but don't invoke a callback or free the command
@@ -2868,26 +3663,37 @@ Tcl_DeleteCommandFromToken(
 	    Tcl_DeleteHashEntry(cmdPtr->hPtr);
 	    cmdPtr->hPtr = NULL;
 	}
+
+	/*
+	 * Bump the command epoch counter. This will invalidate all cached
+	 * references that point to this command.
+	 */
+
+	cmdPtr->cmdEpoch++;
+
 	return 0;
     }
 
     /*
      * We must delete this command, even though both traces and delete procs
      * may try to avoid this (renaming the command etc). Also traces and
-     * delete procs may try to delete the command themsevles. This flag
+     * delete procs may try to delete the command themselves. This flag
      * declares that a delete is in progress and that recursive deletes should
      * be ignored.
      */
 
-    cmdPtr->flags |= CMD_IS_DELETED;
+    cmdPtr->flags |= CMD_DYING;
 
     /*
-     * Call trace functions for the command being deleted. Then delete its
-     * traces.
+     * Call each functions and then delete the trace.
      */
 
+    cmdPtr->nsPtr->refCount++;
+
     if (cmdPtr->tracePtr != NULL) {
 	CommandTrace *tracePtr;
+	/* CallCommandTraces() does not cmdPtr, that's
+	 * done just before Tcl_DeleteCommandFromToken() returns */
 	CallCommandTraces(iPtr,cmdPtr,NULL,NULL,TCL_TRACE_DELETE);
 
 	/*
@@ -2897,8 +3703,9 @@ Tcl_DeleteCommandFromToken(
 	tracePtr = cmdPtr->tracePtr;
 	while (tracePtr != NULL) {
 	    CommandTrace *nextPtr = tracePtr->nextPtr;
-	    if ((--tracePtr->refCount) <= 0) {
-		ckfree((char *) tracePtr);
+
+	    if (tracePtr->refCount-- <= 1) {
+		Tcl_Free(tracePtr);
 	    }
 	    tracePtr = nextPtr;
 	}
@@ -2906,12 +3713,13 @@ Tcl_DeleteCommandFromToken(
     }
 
     /*
-     * The list of command exported from the namespace might have changed.
+     * The list of commands exported from the namespace might have changed.
      * However, we do not need to recompute this just yet; next time we need
      * the info will be soon enough.
      */
 
     TclInvalidateNsCmdLookup(cmdPtr->nsPtr);
+    TclNsDecrRefCount(cmdPtr->nsPtr);
 
     /*
      * If the command being deleted has a compile function, increment the
@@ -2926,39 +3734,36 @@ Tcl_DeleteCommandFromToken(
 	iPtr->compileEpoch++;
     }
 
+    if (!(cmdPtr->flags & CMD_REDEF_IN_PROGRESS)) {
+	/*
+	 * Delete any imports of this routine before deleting this routine itself.
+	 * See issue 688fcc7082fa.
+	 */
+	for (refPtr = cmdPtr->importRefPtr; refPtr != NULL;
+		refPtr = nextRefPtr) {
+	    nextRefPtr = refPtr->nextPtr;
+	    importCmd = (Tcl_Command) refPtr->importedCmdPtr;
+	    Tcl_DeleteCommandFromToken(interp, importCmd);
+	}
+    }
+
     if (cmdPtr->deleteProc != NULL) {
 	/*
 	 * Delete the command's client data. If this was an imported command
 	 * created when a command was imported into a namespace, this client
 	 * data will be a pointer to a ImportedCmdData structure describing
 	 * the "real" command that this imported command refers to.
-	 */
-
-	/*
+	 *
 	 * If you are getting a crash during the call to deleteProc and
 	 * cmdPtr->deleteProc is a pointer to the function free(), the most
 	 * likely cause is that your extension allocated memory for the
-	 * clientData argument to Tcl_CreateObjCommand() with the ckalloc()
+	 * clientData argument to Tcl_CreateObjCommand with the Tcl_Alloc()
 	 * macro and you are now trying to deallocate this memory with free()
-	 * instead of ckfree(). You should pass a pointer to your own method
-	 * that calls ckfree().
+	 * instead of Tcl_Free(). You should pass a pointer to your own method
+	 * that calls Tcl_Free().
 	 */
 
-	(*cmdPtr->deleteProc)(cmdPtr->deleteData);
-    }
-
-    /*
-     * If this command was imported into other namespaces, then imported
-     * commands were created that refer back to this command. Delete these
-     * imported commands now.
-     */
-    if (!(cmdPtr->flags & CMD_REDEF_IN_PROGRESS)) {
-	for (refPtr = cmdPtr->importRefPtr;  refPtr != NULL;
-		refPtr = nextRefPtr) {
-	    nextRefPtr = refPtr->nextPtr;
-	    importCmd = (Tcl_Command) refPtr->importedCmdPtr;
-	    Tcl_DeleteCommandFromToken(interp, importCmd);
-	}
+	cmdPtr->deleteProc(cmdPtr->deleteData);
     }
 
     /*
@@ -2971,14 +3776,20 @@ Tcl_DeleteCommandFromToken(
     if (cmdPtr->hPtr != NULL) {
 	Tcl_DeleteHashEntry(cmdPtr->hPtr);
 	cmdPtr->hPtr = NULL;
+
+	/*
+	 * Bump the command epoch counter. This will invalidate all cached
+	 * references that point to this command.
+	 */
+
+	cmdPtr->cmdEpoch++;
     }
 
     /*
-     * Mark the Command structure as no longer valid. This allows
-     * TclExecuteByteCode to recognize when a Command has logically been
-     * deleted and a pointer to this Command structure cached in a CmdName
-     * object is invalid. TclExecuteByteCode will look up the command again in
-     * the interpreter's command hashtable.
+     * A number of tests for particular kinds of commands are done by checking
+     * whether the objProc field holds a known value. Set the field to NULL so
+     * that such tests won't have false positives when applied to deleted
+     * commands.
      */
 
     cmdPtr->objProc = NULL;
@@ -2988,14 +3799,32 @@ Tcl_DeleteCommandFromToken(
      * from a CmdName Tcl object in some ByteCode code sequence. In that case,
      * delay the cleanup until all references are either discarded (when a
      * ByteCode is freed) or replaced by a new reference (when a cached
-     * CmdName Command reference is found to be invalid and TclExecuteByteCode
-     * looks up the command in the command hashtable).
+     * CmdName Command reference is found to be invalid and
+     * TclNRExecuteByteCode looks up the command in the command hashtable).
      */
 
+    cmdPtr->flags |= CMD_DEAD;
     TclCleanupCommandMacro(cmdPtr);
     return 0;
 }
 
+/*
+ *----------------------------------------------------------------------
+ *
+ * CallCommandTraces --
+ *
+ *	Abstraction of the code to call traces on a command.
+ *
+ * Results:
+ *	Currently always NULL.
+ *
+ * Side effects:
+ *	Anything; this may recursively evaluate scripts and code exists to do
+ *	just that.
+ *
+ *----------------------------------------------------------------------
+ */
+
 static char *
 CallCommandTraces(
     Interp *iPtr,		/* Interpreter containing command. */
@@ -3008,7 +3837,7 @@ CallCommandTraces(
 				 * trigger, either TCL_TRACE_DELETE or
 				 * TCL_TRACE_RENAME. */
 {
-    register CommandTrace *tracePtr;
+    CommandTrace *tracePtr;
     ActiveCommandTrace active;
     char *result;
     Tcl_Obj *oldNamePtr = NULL;
@@ -3019,7 +3848,7 @@ CallCommandTraces(
 	 * While a rename trace is active, we will not process any more rename
 	 * traces; while a delete trace is active we will never reach here -
 	 * because Tcl_DeleteCommandFromToken checks for the condition
-	 * (cmdPtr->flags & CMD_IS_DELETED) and returns immediately when a
+	 * (cmdPtr->flags & CMD_DYING) and returns immediately when a
 	 * command deletion is in progress. For all other traces, delete
 	 * traces will not be invoked but a call to TraceCommandProc will
 	 * ensure that tracePtr->clientData is freed whenever the command
@@ -3034,7 +3863,6 @@ CallCommandTraces(
 	}
     }
     cmdPtr->flags |= CMD_TRACE_ACTIVE;
-    cmdPtr->refCount++;
 
     result = NULL;
     active.nextPtr = iPtr->activeCmdTracePtr;
@@ -3066,11 +3894,11 @@ CallCommandTraces(
 	if (state == NULL) {
 	    state = Tcl_SaveInterpState((Tcl_Interp *) iPtr, TCL_OK);
 	}
-	(*tracePtr->traceProc)(tracePtr->clientData,
-		(Tcl_Interp *) iPtr, oldName, newName, flags);
+	tracePtr->traceProc(tracePtr->clientData, (Tcl_Interp *) iPtr,
+		oldName, newName, flags);
 	cmdPtr->flags &= ~tracePtr->flags;
-	if ((--tracePtr->refCount) <= 0) {
-	    ckfree((char *) tracePtr);
+	if (tracePtr->refCount-- <= 1) {
+	    Tcl_Free(tracePtr);
 	}
     }
 
@@ -3092,39 +3920,86 @@ CallCommandTraces(
      */
 
     cmdPtr->flags &= ~CMD_TRACE_ACTIVE;
-    cmdPtr->refCount--;
     iPtr->activeCmdTracePtr = active.nextPtr;
     Tcl_Release(iPtr);
     return result;
 }
-
+
 /*
  *----------------------------------------------------------------------
  *
- * GetCommandSource --
+ * CancelEvalProc --
+ *
+ *	Marks this interpreter as being canceled. This causes current
+ *	executions to be unwound as the interpreter enters a state where it
+ *	refuses to execute more commands or handle [catch] or [try], yet the
+ *	interpreter is still able to execute further commands after the
+ *	cancelation is cleared (unlike if it is deleted).
  *
- *	This function returns a Tcl_Obj with the full source string for the
- *	command. This insures that traces get a correct NUL-terminated command
- *	string.
+ * Results:
+ *	The value given for the code argument.
+ *
+ * Side effects:
+ *	Transfers a message from the cancellation message to the interpreter.
  *
  *----------------------------------------------------------------------
  */
 
-static Tcl_Obj *
-GetCommandSource(
-    Interp *iPtr,
-    const char *command,
-    int numChars,
-    int objc,
-    Tcl_Obj *const objv[])
+static int
+CancelEvalProc(
+    void *clientData,		/* Interp to cancel the script in progress. */
+    TCL_UNUSED(Tcl_Interp *),
+    int code)			/* Current return code from command. */
 {
-    if (!command) {
-	return Tcl_NewListObj(objc, objv);
-    }
-    if (command == (char *) -1) {
-	command = TclGetSrcInfoForCmd(iPtr, &numChars);
+    CancelInfo *cancelInfo = (CancelInfo *)clientData;
+    Interp *iPtr;
+
+    if (cancelInfo != NULL) {
+	Tcl_MutexLock(&cancelLock);
+	iPtr = (Interp *) cancelInfo->interp;
+
+	if (iPtr != NULL) {
+	    /*
+	     * Setting the CANCELED flag will cause the script in progress to
+	     * be canceled as soon as possible. The core honors this flag at
+	     * all the necessary places to ensure script cancellation is
+	     * responsive. Extensions can check for this flag by calling
+	     * Tcl_Canceled and checking if TCL_ERROR is returned or they can
+	     * choose to ignore the script cancellation flag and the
+	     * associated functionality altogether. Currently, the only other
+	     * flag we care about here is the TCL_CANCEL_UNWIND flag (from
+	     * Tcl_CancelEval). We do not want to simply combine all the flags
+	     * from original Tcl_CancelEval call with the interp flags here
+	     * just in case the caller passed flags that might cause behaviour
+	     * unrelated to script cancellation.
+	     */
+
+	    TclSetCancelFlags(iPtr, cancelInfo->flags | CANCELED);
+
+	    /*
+	     * Now, we must set the script cancellation flags on all the child
+	     * interpreters belonging to this one.
+	     */
+
+	    TclSetChildCancelFlags((Tcl_Interp *) iPtr,
+		    cancelInfo->flags | CANCELED, 0);
+
+	    /*
+	     * Create the result object now so that Tcl_Canceled can avoid
+	     * locking the cancelLock mutex.
+	     */
+
+	    if (cancelInfo->result != NULL) {
+		Tcl_SetStringObj(iPtr->asyncCancelMsg, cancelInfo->result,
+			cancelInfo->length);
+	    } else {
+		Tcl_SetObjLength(iPtr->asyncCancelMsg, 0);
+	    }
+	}
+	Tcl_MutexUnlock(&cancelLock);
     }
-    return Tcl_NewStringObj(command, numChars);
+
+    return code;
 }
 
 /*
@@ -3150,616 +4025,591 @@ GetCommandSource(
 
 void
 TclCleanupCommand(
-    register Command *cmdPtr)	/* Points to the Command structure to
+    Command *cmdPtr)	/* Points to the Command structure to
 				 * be freed. */
 {
-    cmdPtr->refCount--;
-    if (cmdPtr->refCount <= 0) {
-	ckfree((char *) cmdPtr);
+    if (cmdPtr->refCount-- <= 1) {
+	Tcl_Free(cmdPtr);
     }
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * Tcl_CreateMathFunc --
- *
- *	Creates a new math function for expressions in a given interpreter.
- *
- * Results:
- *	None.
- *
- * Side effects:
- *	The Tcl function defined by "name" is created or redefined. If the
- *	function already exists then its definition is replaced; this includes
- *	the builtin functions. Redefining a builtin function forces all
- *	existing code to be invalidated since that code may be compiled using
- *	an instruction specific to the replaced function. In addition,
- *	redefioning a non-builtin function will force existing code to be
- *	invalidated if the number of arguments has changed.
- *
- *----------------------------------------------------------------------
- */
-
-void
-Tcl_CreateMathFunc(
-    Tcl_Interp *interp,		/* Interpreter in which function is to be
-				 * available. */
-    const char *name,		/* Name of function (e.g. "sin"). */
-    int numArgs,		/* Nnumber of arguments required by
-				 * function. */
-    Tcl_ValueType *argTypes,	/* Array of types acceptable for each
-				 * argument. */
-    Tcl_MathProc *proc,		/* C function that implements the math
-				 * function. */
-    ClientData clientData)	/* Additional value to pass to the
-				 * function. */
-{
-    Tcl_DString bigName;
-    OldMathFuncData *data = (OldMathFuncData *)
-	    ckalloc(sizeof(OldMathFuncData));
-
-    data->proc = proc;
-    data->numArgs = numArgs;
-    data->argTypes = (Tcl_ValueType *)
-	    ckalloc(numArgs * sizeof(Tcl_ValueType));
-    memcpy(data->argTypes, argTypes, numArgs * sizeof(Tcl_ValueType));
-    data->clientData = clientData;
-
-    Tcl_DStringInit(&bigName);
-    Tcl_DStringAppend(&bigName, "::tcl::mathfunc::", -1);
-    Tcl_DStringAppend(&bigName, name, -1);
-
-    Tcl_CreateObjCommand(interp, Tcl_DStringValue(&bigName),
-	    OldMathFuncProc, data, OldMathFuncDeleteProc);
-    Tcl_DStringFree(&bigName);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * OldMathFuncProc --
+ * TclInterpReady --
  *
- *	Dispatch to a math function created with Tcl_CreateMathFunc
+ *	Check if an interpreter is ready to eval commands or scripts, i.e., if
+ *	it was not deleted and if the nesting level is not too high.
  *
  * Results:
- *	Returns a standard Tcl result.
+ *	The return value is TCL_OK if it the interpreter is ready, TCL_ERROR
+ *	otherwise.
  *
  * Side effects:
- *	Whatever the math function does.
+ *	The interpreter's result is cleared.
  *
  *----------------------------------------------------------------------
  */
 
-static int
-OldMathFuncProc(
-    ClientData clientData,	/* Ponter to OldMathFuncData describing the
-				 * function being called */
-    Tcl_Interp *interp,		/* Tcl interpreter */
-    int objc,			/* Actual parameter count */
-    Tcl_Obj *const *objv)	/* Parameter vector */
+int
+TclInterpReady(
+    Tcl_Interp *interp)
 {
-    Tcl_Obj *valuePtr;
-    OldMathFuncData *dataPtr = clientData;
-    Tcl_Value funcResult, *args;
-    int result;
-    int j, k;
-    double d;
+    Interp *iPtr = (Interp *) interp;
 
     /*
-     * Check argument count.
+     * Reset the interpreter's result and clear out any previous error
+     * information.
      */
 
-    if (objc != dataPtr->numArgs + 1) {
-	MathFuncWrongNumArgs(interp, dataPtr->numArgs+1, objc, objv);
-	return TCL_ERROR;
-    }
+    Tcl_ResetResult(interp);
 
     /*
-     * Convert arguments from Tcl_Obj's to Tcl_Value's.
+     * If the interpreter has been deleted, return an error.
      */
 
-    args = (Tcl_Value *) ckalloc(dataPtr->numArgs * sizeof(Tcl_Value));
-    for (j = 1, k = 0; j < objc; ++j, ++k) {
-
-	/* TODO: Convert to TclGetNumberFromObj() ? */
-	valuePtr = objv[j];
-	result = Tcl_GetDoubleFromObj(NULL, valuePtr, &d);
-#ifdef ACCEPT_NAN
-	if ((result != TCL_OK) && (valuePtr->typePtr == &tclDoubleType)) {
-	    d = valuePtr->internalRep.doubleValue;
-	    result = TCL_OK;
-	}
-#endif
-	if (result != TCL_OK) {
-	    /*
-	     * We have a non-numeric argument.
-	     */
-
-	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
-		    "argument to math function didn't have numeric value",-1));
-	    TclCheckBadOctal(interp, Tcl_GetString(valuePtr));
-	    ckfree((char *)args);
-	    return TCL_ERROR;
-	}
-
-	/*
-	 * Copy the object's numeric value to the argument record, converting
-	 * it if necessary.
-	 *
-	 * NOTE: no bignum support; use the new mathfunc interface for that.
-	 */
-
-	args[k].type = dataPtr->argTypes[k];
-	switch (args[k].type) {
-	case TCL_EITHER:
-	    if (Tcl_GetLongFromObj(NULL, valuePtr, &(args[k].intValue))
-		    == TCL_OK) {
-		args[k].type = TCL_INT;
-		break;
-	    }
-	    if (Tcl_GetWideIntFromObj(interp, valuePtr, &(args[k].wideValue))
-		    == TCL_OK) {
-		args[k].type = TCL_WIDE_INT;
-		break;
-	    }
-	    args[k].type = TCL_DOUBLE;
-	    /* FALLTHROUGH */
+    if (iPtr->flags & DELETED) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"attempt to call eval in deleted interpreter", TCL_INDEX_NONE));
+	Tcl_SetErrorCode(interp, "TCL", "IDELETE",
+		"attempt to call eval in deleted interpreter", (char *)NULL);
+	return TCL_ERROR;
+    }
 
-	case TCL_DOUBLE:
-	    args[k].doubleValue = d;
-	    break;
-	case TCL_INT:
-	    if (ExprIntFunc(NULL, interp, 2, &(objv[j-1])) != TCL_OK) {
-		ckfree((char *)args);
-		return TCL_ERROR;
-	    }
-	    valuePtr = Tcl_GetObjResult(interp);
-	    Tcl_GetLongFromObj(NULL, valuePtr, &(args[k].intValue));
-	    Tcl_ResetResult(interp);
-	    break;
-	case TCL_WIDE_INT:
-	    if (ExprWideFunc(NULL, interp, 2, &(objv[j-1])) != TCL_OK) {
-		ckfree((char *)args);
-		return TCL_ERROR;
-	    }
-	    valuePtr = Tcl_GetObjResult(interp);
-	    Tcl_GetWideIntFromObj(NULL, valuePtr, &(args[k].wideValue));
-	    Tcl_ResetResult(interp);
-	    break;
-	}
+    if (iPtr->execEnvPtr->rewind) {
+	return TCL_ERROR;
     }
 
     /*
-     * Call the function.
+     * Make sure the script being evaluated (if any) has not been canceled.
      */
 
-    errno = 0;
-    result = (*dataPtr->proc)(dataPtr->clientData, interp, args, &funcResult);
-    ckfree((char *)args);
-    if (result != TCL_OK) {
-	return result;
+    if (TclCanceled(iPtr) &&
+	    (TCL_OK != Tcl_Canceled(interp, TCL_LEAVE_ERR_MSG))) {
+	return TCL_ERROR;
     }
 
     /*
-     * Return the result of the call.
+     * Check depth of nested calls to Tcl_Eval: if this gets too large, it's
+     * probably because of an infinite loop somewhere.
      */
 
-    if (funcResult.type == TCL_INT) {
-	TclNewLongObj(valuePtr, funcResult.intValue);
-    } else if (funcResult.type == TCL_WIDE_INT) {
-	valuePtr = Tcl_NewWideIntObj(funcResult.wideValue);
-    } else {
-	return CheckDoubleResult(interp, funcResult.doubleValue);
+    if ((iPtr->numLevels <= iPtr->maxNestingDepth)) {
+	return TCL_OK;
     }
-    Tcl_SetObjResult(interp, valuePtr);
-    return TCL_OK;
+
+    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+	    "too many nested evaluations (infinite loop?)", TCL_INDEX_NONE));
+    Tcl_SetErrorCode(interp, "TCL", "LIMIT", "STACK", (char *)NULL);
+    return TCL_ERROR;
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * OldMathFuncDeleteProc --
+ * TclResetCancellation --
  *
- *	Cleans up after deleting a math function registered with
- *	Tcl_CreateMathFunc
+ *	Reset the script cancellation flags if the nesting level
+ *	(iPtr->numLevels) for the interp is zero or argument force is
+ *	non-zero.
  *
  * Results:
- *	None.
+ *	A standard Tcl result.
  *
  * Side effects:
- *	Frees allocated memory.
+ *	The script cancellation flags for the interp may be reset.
  *
  *----------------------------------------------------------------------
  */
 
-static void
-OldMathFuncDeleteProc(
-     ClientData clientData)
+int
+TclResetCancellation(
+    Tcl_Interp *interp,
+    int force)
 {
-    OldMathFuncData *dataPtr = clientData;
+    Interp *iPtr = (Interp *) interp;
 
-    ckfree((void *) dataPtr->argTypes);
-    ckfree((void *) dataPtr);
+    if (iPtr == NULL) {
+	return TCL_ERROR;
+    }
+
+    if (force || (iPtr->numLevels == 0)) {
+	TclUnsetCancelFlags(iPtr);
+    }
+    return TCL_OK;
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * Tcl_GetMathFuncInfo --
+ * Tcl_Canceled --
  *
- *	Discovers how a particular math function was created in a given
- *	interpreter.
+ *	Check if the script in progress has been canceled, i.e.,
+ *	Tcl_CancelEval was called for this interpreter or any of its parent
+ *	interpreters.
  *
  * Results:
- *	TCL_OK if it succeeds, TCL_ERROR else (leaving an error message in the
- *	interpreter result if that happens.)
+ *	The return value is TCL_OK if the script evaluation has not been
+ *	canceled, TCL_ERROR otherwise.
+ *
+ *	If "flags" contains TCL_LEAVE_ERR_MSG, an error message is returned in
+ *	the interpreter's result object. Otherwise, the interpreter's result
+ *	object is left unchanged. If "flags" contains TCL_CANCEL_UNWIND,
+ *	TCL_ERROR will only be returned if the script evaluation is being
+ *	completely unwound.
  *
  * Side effects:
- *	If this function succeeds, the variables pointed to by the numArgsPtr
- *	and argTypePtr arguments will be updated to detail the arguments
- *	allowed by the function. The variable pointed to by the procPtr
- *	argument will be set to NULL if the function is a builtin function,
- *	and will be set to the address of the C function used to implement the
- *	math function otherwise (in which case the variable pointed to by the
- *	clientDataPtr argument will also be updated.)
+ *	The CANCELED flag for the interp will be reset if it is set.
  *
  *----------------------------------------------------------------------
  */
 
 int
-Tcl_GetMathFuncInfo(
+Tcl_Canceled(
     Tcl_Interp *interp,
-    const char *name,
-    int *numArgsPtr,
-    Tcl_ValueType **argTypesPtr,
-    Tcl_MathProc **procPtr,
-    ClientData *clientDataPtr)
+    int flags)
 {
-    Tcl_Obj *cmdNameObj;
-    Command *cmdPtr;
+    Interp *iPtr = (Interp *) interp;
 
     /*
-     * Get the command that implements the math function.
+     * Has the current script in progress for this interpreter been canceled
+     * or is the stack being unwound due to the previous script cancellation?
      */
 
-    TclNewLiteralStringObj(cmdNameObj, "tcl::mathfunc::");
-    Tcl_AppendToObj(cmdNameObj, name, -1);
-    Tcl_IncrRefCount(cmdNameObj);
-    cmdPtr = (Command *) Tcl_GetCommandFromObj(interp, cmdNameObj);
-    Tcl_DecrRefCount(cmdNameObj);
+    if (!TclCanceled(iPtr)) {
+	return TCL_OK;
+    }
 
     /*
-     * Report unknown functions.
+     * The CANCELED flag is a one-shot flag that is reset immediately upon
+     * being detected; however, if the TCL_CANCEL_UNWIND flag is set we will
+     * continue to report that the script in progress has been canceled
+     * thereby allowing the evaluation stack for the interp to be fully
+     * unwound.
      */
 
-    if (cmdPtr == NULL) {
-	Tcl_Obj *message;
-
-	TclNewLiteralStringObj(message, "unknown math function \"");
-	Tcl_AppendToObj(message, name, -1);
-	Tcl_AppendToObj(message, "\"", 1);
-	Tcl_SetObjResult(interp, message);
-	*numArgsPtr = -1;
-	*argTypesPtr = NULL;
-	*procPtr = NULL;
-	*clientDataPtr = NULL;
-	return TCL_ERROR;
+    iPtr->flags &= ~CANCELED;
+
+    /*
+     * The CANCELED flag was detected and reset; however, if the caller
+     * specified the TCL_CANCEL_UNWIND flag, we only return TCL_ERROR
+     * (indicating that the script in progress has been canceled) if the
+     * evaluation stack for the interp is being fully unwound.
+     */
+
+    if ((flags & TCL_CANCEL_UNWIND) && !(iPtr->flags & TCL_CANCEL_UNWIND)) {
+	return TCL_OK;
     }
 
     /*
-     * Retrieve function info for user defined functions; return dummy
-     * information for builtins.
+     * If the TCL_LEAVE_ERR_MSG flags bit is set, place an error in the
+     * interp's result; otherwise, we leave it alone.
      */
 
-    if (cmdPtr->objProc == &OldMathFuncProc) {
-	OldMathFuncData *dataPtr = cmdPtr->clientData;
+    if (flags & TCL_LEAVE_ERR_MSG) {
+	const char *id, *message = NULL;
+	Tcl_Size length;
 
-	*procPtr = dataPtr->proc;
-	*numArgsPtr = dataPtr->numArgs;
-	*argTypesPtr = dataPtr->argTypes;
-	*clientDataPtr = dataPtr->clientData;
-    } else {
-	*procPtr = NULL;
-	*numArgsPtr = -1;
-	*argTypesPtr = NULL;
-	*procPtr = NULL;
-	*clientDataPtr = NULL;
+	/*
+	 * Setup errorCode variables so that we can differentiate between
+	 * being canceled and unwound.
+	 */
+
+	if (iPtr->asyncCancelMsg != NULL) {
+	    message = TclGetStringFromObj(iPtr->asyncCancelMsg, &length);
+	} else {
+	    length = 0;
+	}
+
+	if (iPtr->flags & TCL_CANCEL_UNWIND) {
+	    id = "IUNWIND";
+	    if (length == 0) {
+		message = "eval unwound";
+	    }
+	} else {
+	    id = "ICANCEL";
+	    if (length == 0) {
+		message = "eval canceled";
+	    }
+	}
+
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(message, TCL_INDEX_NONE));
+	Tcl_SetErrorCode(interp, "TCL", "CANCEL", id, message, (char *)NULL);
     }
-    return TCL_OK;
+
+    /*
+     * Return TCL_ERROR to the caller (not necessarily just the Tcl core
+     * itself) that indicates further processing of the script or command in
+     * progress should halt gracefully and as soon as possible.
+     */
+
+    return TCL_ERROR;
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * Tcl_ListMathFuncs --
+ * Tcl_CancelEval --
  *
- *	Produces a list of all the math functions defined in a given
- *	interpreter.
+ *	This function schedules the cancellation of the current script in the
+ *	given interpreter.
  *
  * Results:
- *	A pointer to a Tcl_Obj structure with a reference count of zero, or
- *	NULL in the case of an error (in which case a suitable error message
- *	will be left in the interpreter result.)
+ *	The return value is a standard Tcl completion code such as TCL_OK or
+ *	TCL_ERROR. Since the interp may belong to a different thread, no error
+ *	message can be left in the interp's result.
  *
  * Side effects:
- *	None.
+ *	The script in progress in the specified interpreter will be canceled
+ *	with TCL_ERROR after asynchronous handlers are invoked at the next
+ *	Tcl_Canceled check.
  *
  *----------------------------------------------------------------------
  */
 
-Tcl_Obj *
-Tcl_ListMathFuncs(
-    Tcl_Interp *interp,
-    const char *pattern)
+int
+Tcl_CancelEval(
+    Tcl_Interp *interp,		/* Interpreter in which to cancel the
+				 * script. */
+    Tcl_Obj *resultObjPtr,	/* The script cancellation error message or
+				 * NULL for a default error message. */
+    void *clientData,		/* Passed to CancelEvalProc. */
+    int flags)			/* Collection of OR-ed bits that control
+				 * the cancellation of the script. Only
+				 * TCL_CANCEL_UNWIND is currently
+				 * supported. */
 {
-    Tcl_Obj *script = Tcl_NewStringObj("::info functions ", -1);
-    Tcl_Obj *result;
-    Tcl_InterpState state;
+    Tcl_HashEntry *hPtr;
+    CancelInfo *cancelInfo;
+    int code = TCL_ERROR;
+    const char *result;
 
-    if (pattern) {
-	Tcl_Obj *patternObj = Tcl_NewStringObj(pattern, -1);
-	Tcl_Obj *arg = Tcl_NewListObj(1, &patternObj);
+    if (interp == NULL) {
+	return TCL_ERROR;
+    }
 
-	Tcl_AppendObjToObj(script, arg);
-	Tcl_DecrRefCount(arg);	/* Should tear down patternObj too */
+    Tcl_MutexLock(&cancelLock);
+    if (cancelTableInitialized != 1) {
+	/*
+	 * No CancelInfo hash table (Tcl_CreateInterp has never been called?)
+	 */
+
+	goto done;
     }
+    hPtr = Tcl_FindHashEntry(&cancelTable, interp);
+    if (hPtr == NULL) {
+	/*
+	 * No CancelInfo record for this interpreter.
+	 */
+
+	goto done;
+    }
+    cancelInfo = (CancelInfo *)Tcl_GetHashValue(hPtr);
+
+    /*
+     * Populate information needed by the interpreter thread to fulfill the
+     * cancellation request. Currently, clientData is ignored. If the
+     * TCL_CANCEL_UNWIND flags bit is set, the script in progress is not
+     * allowed to catch the script cancellation because the evaluation stack
+     * for the interp is completely unwound.
+     */
 
-    state = Tcl_SaveInterpState(interp, TCL_OK);
-    Tcl_IncrRefCount(script);
-    if (TCL_OK == Tcl_EvalObjEx(interp, script, 0)) {
-	result = Tcl_DuplicateObj(Tcl_GetObjResult(interp));
+    if (resultObjPtr != NULL) {
+	result = TclGetStringFromObj(resultObjPtr, &cancelInfo->length);
+	cancelInfo->result = (char *)Tcl_Realloc(cancelInfo->result, cancelInfo->length);
+	memcpy(cancelInfo->result, result, cancelInfo->length);
+	TclDecrRefCount(resultObjPtr);	/* Discard their result object. */
     } else {
-	result = Tcl_NewObj();
+	cancelInfo->result = NULL;
+	cancelInfo->length = 0;
     }
-    Tcl_DecrRefCount(script);
-    Tcl_RestoreInterpState(interp, state);
+    cancelInfo->clientData = clientData;
+    cancelInfo->flags = flags;
+    Tcl_AsyncMark(cancelInfo->async);
+    code = TCL_OK;
 
-    return result;
+  done:
+    Tcl_MutexUnlock(&cancelLock);
+    return code;
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * TclInterpReady --
+ * Tcl_InterpActive --
  *
- *	Check if an interpreter is ready to eval commands or scripts, i.e., if
- *	it was not deleted and if the nesting level is not too high.
+ *	Returns non-zero if the specified interpreter is in use, i.e. if there
+ *	is an evaluation currently active in the interpreter.
  *
  * Results:
- *	The return value is TCL_OK if it the interpreter is ready, TCL_ERROR
- *	otherwise.
+ *	See above.
  *
  * Side effects:
- *	The interpreters object and string results are cleared.
+ *	None.
  *
  *----------------------------------------------------------------------
  */
 
 int
-TclInterpReady(
+Tcl_InterpActive(
     Tcl_Interp *interp)
 {
-#if !defined(TCL_NO_STACK_CHECK)
-    int localInt; /* used for checking the stack */
-#endif
-    register Interp *iPtr = (Interp *) interp;
-
-    /*
-     * Reset both the interpreter's string and object results and clear out
-     * any previous error information.
-     */
-
-    Tcl_ResetResult(interp);
-
-    /*
-     * If the interpreter has been deleted, return an error.
-     */
-
-    if (iPtr->flags & DELETED) {
-	Tcl_ResetResult(interp);
-	Tcl_AppendResult(interp,
-		"attempt to call eval in deleted interpreter", NULL);
-	Tcl_SetErrorCode(interp, "TCL", "IDELETE",
-		"attempt to call eval in deleted interpreter", NULL);
-	return TCL_ERROR;
-    }
-
-    /*
-     * Check depth of nested calls to Tcl_Eval: if this gets too large, it's
-     * probably because of an infinite loop somewhere.
-     */
-
-    if (((iPtr->numLevels) <= iPtr->maxNestingDepth)
-	    && CheckCStack(iPtr, &localInt)) {
-	return TCL_OK;
-    }
-
-    if (!CheckCStack(iPtr, &localInt)) {
-	Tcl_AppendResult(interp,
-		"out of stack space (infinite loop?)", NULL);
-    } else {
-	Tcl_AppendResult(interp,
-		"too many nested evaluations (infinite loop?)", NULL);
-    }
-    return TCL_ERROR;
+    return ((Interp *) interp)->numLevels > 0;
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * TclEvalObjvInternal
+ * Tcl_EvalObjv --
  *
  *	This function evaluates a Tcl command that has already been parsed
- *	into words, with one Tcl_Obj holding each word. The caller is
- *	responsible for managing the iPtr->numLevels.
- *
- *      TclEvalObjvInternal is the backend for Tcl_EvalObjv, the bytecode
- *      engine also calls it directly.
+ *	into words, with one Tcl_Obj holding each word.
  *
  * Results:
  *	The return value is a standard Tcl completion code such as TCL_OK or
- *	TCL_ERROR. A result or error message is left in interp's result. If an
- *	error occurs, this function does NOT add any information to the
- *	errorInfo variable.
+ *	TCL_ERROR. A result or error message is left in interp's result.
  *
  * Side effects:
- *	Depends on the command.
+ *	Always pushes a callback. Other side effects depend on the command.
  *
  *----------------------------------------------------------------------
  */
 
 int
-TclEvalObjvInternal(
+Tcl_EvalObjv(
     Tcl_Interp *interp,		/* Interpreter in which to evaluate the
 				 * command. Also used for error reporting. */
-    int objc,			/* Number of words in command. */
+    Tcl_Size objc,		/* Number of words in command. */
     Tcl_Obj *const objv[],	/* An array of pointers to objects that are
 				 * the words that make up the command. */
-    const char *command,	/* Points to the beginning of the string
-				 * representation of the command; this is used
-				 * for traces. NULL if the string
-				 * representation of the command is unknown is
-				 * to be generated from (objc,objv), -1 if it
-				 * is to be generated from bytecode
-				 * source. This is only needed the traces. */
-    int length,			/* Number of bytes in command; if -1, all
-				 * characters up to the first null byte are
-				 * used. */
     int flags)			/* Collection of OR-ed bits that control the
 				 * evaluation of the script. Only
-				 * TCL_EVAL_GLOBAL and TCL_EVAL_INVOKE are
-				 * currently supported. */
+				 * TCL_EVAL_GLOBAL, TCL_EVAL_INVOKE and
+				 * TCL_EVAL_NOERR are currently supported. */
 {
-    Command *cmdPtr;
-    Interp *iPtr = (Interp *) interp;
-    Tcl_Obj **newObjv;
-    int i;
-    CallFrame *savedVarFramePtr = NULL;
-    CallFrame *varFramePtr = iPtr->varFramePtr;
-    int code = TCL_OK;
-    int traceCode = TCL_OK;
-    int checkTraces = 1, traced;
-    Namespace *savedNsPtr = NULL;
-    Namespace *lookupNsPtr = iPtr->lookupNsPtr;
-    Tcl_Obj *commandPtr = NULL;
+    int result;
+    NRE_callback *rootPtr = TOP_CB(interp);
 
-    if (TclInterpReady(interp) == TCL_ERROR) {
-	return TCL_ERROR;
-    }
+    result = TclNREvalObjv(interp, objc, objv, flags, NULL);
+    return TclNRRunCallbacks(interp, result, rootPtr);
+}
 
-    if (objc == 0) {
-	return TCL_OK;
-    }
+int
+TclNREvalObjv(
+    Tcl_Interp *interp,		/* Interpreter in which to evaluate the
+				 * command. Also used for error reporting. */
+    Tcl_Size objc,		/* Number of words in command. */
+    Tcl_Obj *const objv[],	/* An array of pointers to objects that are
+				 * the words that make up the command. */
+    int flags,			/* Collection of OR-ed bits that control the
+				 * evaluation of the script. Only
+				 * TCL_EVAL_GLOBAL, TCL_EVAL_INVOKE and
+				 * TCL_EVAL_NOERR are currently supported. */
+    Command *cmdPtr)		/* NULL if the Command is to be looked up
+				 * here, otherwise the pointer to the
+				 * requested Command struct to be invoked. */
+{
+    Interp *iPtr = (Interp *) interp;
 
     /*
-     * If any execution traces rename or delete the current command, we may
-     * need (at most) two passes here.
+     * data[1] stores a marker for use by tailcalls; it will be set to 1 by
+     * command redirectors (imports, alias, ensembles) so that tailcall skips
+     * this callback (that marks the end of the target command) and goes back
+     * to the end of the source command.
      */
 
-  reparseBecauseOfTraces:
+    if (iPtr->deferredCallbacks) {
+	iPtr->deferredCallbacks = NULL;
+    } else {
+	TclNRAddCallback(interp, NRCommand, NULL, NULL, NULL, NULL);
+    }
+
+    iPtr->numLevels++;
+    TclNRAddCallback(interp, EvalObjvCore, cmdPtr, INT2PTR(flags),
+	    INT2PTR(objc), objv);
+    return TCL_OK;
+}
+
+static int
+EvalObjvCore(
+    void *data[],
+    Tcl_Interp *interp,
+    TCL_UNUSED(int) /*result*/)
+{
+    Command *cmdPtr = NULL, *preCmdPtr = (Command *)data[0];
+    int flags = (int)PTR2INT(data[1]);
+    Tcl_Size objc = PTR2INT(data[2]);
+    Tcl_Obj **objv = (Tcl_Obj **)data[3];
+    Interp *iPtr = (Interp *) interp;
+    Namespace *lookupNsPtr = NULL;
+    int enterTracesDone = 0;
 
     /*
-     * Configure evaluation context to match the requested flags.
+     * Push records for task to be done on return, in INVERSE order. First, if
+     * needed, the exception handlers (as they should happen last).
      */
 
-    if (flags) {
-	if (flags & TCL_EVAL_INVOKE) {
-	    savedNsPtr = varFramePtr->nsPtr;
-	    if (lookupNsPtr) {
-		varFramePtr->nsPtr = lookupNsPtr;
-		iPtr->lookupNsPtr = NULL;
-	    } else {
-		varFramePtr->nsPtr = iPtr->globalNsPtr;
-	    }
-	} else if ((flags & TCL_EVAL_GLOBAL)
-		&& (varFramePtr != iPtr->rootFramePtr) && !savedVarFramePtr) {
-	    varFramePtr = iPtr->rootFramePtr;
-	    savedVarFramePtr = iPtr->varFramePtr;
-	    iPtr->varFramePtr = varFramePtr;
+    if (!(flags & TCL_EVAL_NOERR)) {
+	TEOV_PushExceptionHandlers(interp, objc, objv, flags);
+    }
+
+    if (TCL_OK != TclInterpReady(interp)) {
+	return TCL_ERROR;
+    }
+
+    if (objc == 0) {
+	return TCL_OK;
+    }
+
+    if (TclLimitExceeded(iPtr->limit)) {
+	/* generate error message if not yet already logged at this stage */
+	if (!(iPtr->flags & ERR_ALREADY_LOGGED)) {
+	    Tcl_LimitCheck(interp);
 	}
+	return TCL_ERROR;
     }
 
     /*
-     * Find the function to execute this command. If there isn't one, then see
-     * if there is an unknown command handler registered for this namespace.
-     * If so, create a new word array with the handler as the first words and
-     * the original command words as arguments. Then call ourselves
-     * recursively to execute it.
+     * Configure evaluation context to match the requested flags.
      */
 
-    cmdPtr = (Command *) Tcl_GetCommandFromObj(interp, objv[0]);
-    if (!cmdPtr) {
-	goto notFound;
-    }
+    if (iPtr->lookupNsPtr) {
+
+	/*
+	 * Capture the namespace we should do command name resolution in, as
+	 * instructed by our caller sneaking it in to us in a private interp
+	 * field.  Clear that field right away so we cannot possibly have its
+	 * use leak where it should not.  The sneaky message pass is done.
+	 *
+	 * Use of this mechanism overrides the TCL_EVAL_GLOBAL flag.
+	 * TODO: Is that a bug?
+	 */
+
+	lookupNsPtr = iPtr->lookupNsPtr;
+	iPtr->lookupNsPtr = NULL;
+    } else if (flags & TCL_EVAL_INVOKE) {
+	lookupNsPtr = iPtr->globalNsPtr;
+    } else {
 
-    if (savedNsPtr) {
-	varFramePtr->nsPtr = savedNsPtr;
-    } else if (iPtr->ensembleRewrite.sourceObjs) {
 	/*
 	 * TCL_EVAL_INVOKE was not set: clear rewrite rules
 	 */
 
-	iPtr->ensembleRewrite.sourceObjs = NULL;
+	TclResetRewriteEnsemble(interp, 1);
+
+	if (flags & TCL_EVAL_GLOBAL) {
+	    TEOV_SwitchVarFrame(interp);
+	    lookupNsPtr = iPtr->globalNsPtr;
+	}
     }
 
     /*
-     * Call trace functions if needed.
+     * Lookup the Command to dispatch.
      */
 
-    traced = (iPtr->tracePtr || (cmdPtr->flags & CMD_HAS_EXEC_TRACES));
-    if (traced && checkTraces) {
-	int cmdEpoch = cmdPtr->cmdEpoch;
-	int newEpoch;
-
+    reresolve:
+    assert(cmdPtr == NULL);
+    if (preCmdPtr) {
 	/*
-	 * Insure that we have a correct nul-terminated command string for the
-	 * trace code.
+	 * Caller gave it to us.
 	 */
 
-	commandPtr = GetCommandSource(iPtr, command, length, objc, objv);
-	command = TclGetStringFromObj(commandPtr, &length);
+	if (!(preCmdPtr->flags & CMD_DEAD)) {
+	    /*
+	     * So long as it exists, use it.
+	     */
 
-	/*
-	 * Execute any command or execution traces. Note that we bump up the
-	 * command's reference count for the duration of the calling of the
-	 * traces so that the structure doesn't go away underneath our feet.
-	 */
+	    cmdPtr = preCmdPtr;
+	} else if (flags & TCL_EVAL_NORESOLVE) {
+	    /*
+	     * When it's been deleted, and we're told not to attempt resolving
+	     * it ourselves, all we can do is raise an error.
+	     */
 
-	cmdPtr->refCount++;
-	if (iPtr->tracePtr && (traceCode == TCL_OK)) {
-	    traceCode = TclCheckInterpTraces(interp, command, length,
-		    cmdPtr, code, TCL_TRACE_ENTER_EXEC, objc, objv);
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "attempt to invoke a deleted command"));
+	    Tcl_SetErrorCode(interp, "TCL", "EVAL", "DELETEDCOMMAND", (char *)NULL);
+	    return TCL_ERROR;
 	}
-	if ((cmdPtr->flags & CMD_HAS_EXEC_TRACES) && (traceCode == TCL_OK)) {
-	    traceCode = TclCheckExecutionTraces(interp, command, length,
-		    cmdPtr, code, TCL_TRACE_ENTER_EXEC, objc, objv);
+    }
+    if (cmdPtr == NULL) {
+	cmdPtr = TEOV_LookupCmdFromObj(interp, objv[0], lookupNsPtr);
+	if (!cmdPtr) {
+	    return TEOV_NotFound(interp, objc, objv, lookupNsPtr);
 	}
-	newEpoch = cmdPtr->cmdEpoch;
-	TclCleanupCommandMacro(cmdPtr);
+    }
 
-	/*
-	 * If the traces modified/deleted the command or any existing traces,
-	 * they will update the command's epoch. When that happens, set
-	 * checkTraces is set to 0 to prevent the re-calling of traces (and
-	 * any possible infinite loop) and we go back to re-find the command
-	 * implementation.
-	 */
+    if (enterTracesDone || iPtr->tracePtr
+	    || (cmdPtr->flags & CMD_HAS_EXEC_TRACES)) {
+	Tcl_Obj *commandPtr = TclGetSourceFromFrame(
+		flags & TCL_EVAL_SOURCE_IN_FRAME ? iPtr->cmdFramePtr : NULL,
+		objc, objv);
 
-	if (traceCode == TCL_OK && cmdEpoch != newEpoch) {
-	    checkTraces = 0;
-	    if (commandPtr) {
+	Tcl_IncrRefCount(commandPtr);
+	if (!enterTracesDone) {
+	    int code = TEOV_RunEnterTraces(interp, &cmdPtr, commandPtr,
+		    objc, objv);
+
+	    /*
+	     * Send any exception from enter traces back as an exception
+	     * raised by the traced command.
+	     * TODO: Is this a bug?  Letting an execution trace BREAK or
+	     * CONTINUE or RETURN in the place of the traced command?  Would
+	     * either converting all exceptions to TCL_ERROR, or just
+	     * swallowing them be better?  (Swallowing them has the problem of
+	     * permanently hiding program errors.)
+	     */
+
+	    if (code != TCL_OK) {
 		Tcl_DecrRefCount(commandPtr);
-		commandPtr = NULL;
+		return code;
+	    }
+
+	    /*
+	     * If the enter traces made the resolved cmdPtr unusable, go back
+	     * and resolve again, but next time don't run enter traces again.
+	     */
+
+	    if (cmdPtr == NULL) {
+		enterTracesDone = 1;
+		Tcl_DecrRefCount(commandPtr);
+		goto reresolve;
 	    }
-	    goto reparseBecauseOfTraces;
 	}
+
+	/*
+	 * Schedule leave traces.  Raise the refCount on the resolved cmdPtr,
+	 * so that when it passes to the leave traces we know it's still
+	 * valid.
+	 */
+
+	cmdPtr->refCount++;
+	TclNRAddCallback(interp, TEOV_RunLeaveTraces, INT2PTR(objc),
+		commandPtr, cmdPtr, objv);
     }
 
+    TclNRAddCallback(interp, Dispatch,
+	    cmdPtr->nreProc ? cmdPtr->nreProc : cmdPtr->objProc,
+	    cmdPtr->objClientData, INT2PTR(objc), objv);
+    return TCL_OK;
+}
+
+static int
+Dispatch(
+    void *data[],
+    Tcl_Interp *interp,
+    TCL_UNUSED(int) /*result*/)
+{
+    Tcl_ObjCmdProc *objProc = (Tcl_ObjCmdProc *)data[0];
+    void *clientData = data[1];
+    Tcl_Size objc = PTR2INT(data[2]);
+    Tcl_Obj **objv = (Tcl_Obj **)data[3];
+    Interp *iPtr = (Interp *) interp;
+
 #ifdef USE_DTRACE
     if (TCL_DTRACE_CMD_ARGS_ENABLED()) {
-	char *a[10];
-	int i = 0;
+	const char *a[10];
+	Tcl_Size i = 0;
 
 	while (i < 10) {
 	    a[i] = i < objc ? TclGetString(objv[i]) : NULL; i++;
@@ -3769,172 +4619,291 @@ TclEvalObjvInternal(
     }
     if (TCL_DTRACE_CMD_INFO_ENABLED() && iPtr->cmdFramePtr) {
 	Tcl_Obj *info = TclInfoFrame(interp, iPtr->cmdFramePtr);
-	char *a[4]; int i[2];
+	const char *a[6]; Tcl_Size i[2];
 
 	TclDTraceInfo(info, a, i);
-	TCL_DTRACE_CMD_INFO(a[0], a[1], a[2], a[3], i[0], i[1]);
+	TCL_DTRACE_CMD_INFO(a[0], a[1], a[2], a[3], i[0], i[1], a[4], a[5]);
 	TclDecrRefCount(info);
     }
+    if ((TCL_DTRACE_CMD_RETURN_ENABLED() || TCL_DTRACE_CMD_RESULT_ENABLED())
+	    && objc) {
+	TclNRAddCallback(interp, DTraceCmdReturn, objv[0], NULL, NULL, NULL);
+    }
+    if (TCL_DTRACE_CMD_ENTRY_ENABLED() && objc) {
+	TCL_DTRACE_CMD_ENTRY(TclGetString(objv[0]), objc - 1,
+		(Tcl_Obj **)(objv + 1));
+    }
 #endif /* USE_DTRACE */
 
+    iPtr->cmdCount++;
+    return objProc(clientData, interp, objc, objv);
+}
+
+int
+TclNRRunCallbacks(
+    Tcl_Interp *interp,
+    int result,
+    struct NRE_callback *rootPtr)
+				/* All callbacks down to rootPtr not inclusive
+				 * are to be run. */
+{
+    while (TOP_CB(interp) != rootPtr) {
+	NRE_callback *callbackPtr = TOP_CB(interp);
+	Tcl_NRPostProc *procPtr = callbackPtr->procPtr;
+
+	TOP_CB(interp) = callbackPtr->nextPtr;
+	result = procPtr(callbackPtr->data, interp, result);
+	TCLNR_FREE(interp, callbackPtr);
+    }
+    return result;
+}
+
+static int
+NRCommand(
+    void *data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    Interp *iPtr = (Interp *) interp;
+    Tcl_Obj *listPtr;
+
+    iPtr->numLevels--;
+
     /*
-     * Finally, invoke the command's Tcl_ObjCmdProc.
+     * If there is a tailcall, schedule it next
      */
 
-    cmdPtr->refCount++;
-    iPtr->cmdCount++;
-    if (code == TCL_OK && traceCode == TCL_OK
-	    && !TclLimitExceeded(iPtr->limit)) {
-	if (TCL_DTRACE_CMD_ENTRY_ENABLED()) {
-	    TCL_DTRACE_CMD_ENTRY(TclGetString(objv[0]), objc - 1,
-		    (Tcl_Obj **)(objv + 1));
-	}
-	code = (*cmdPtr->objProc)(cmdPtr->objClientData, interp, objc, objv);
-	if (TCL_DTRACE_CMD_RETURN_ENABLED()) {
-	    TCL_DTRACE_CMD_RETURN(TclGetString(objv[0]), code);
-	}
+    if (data[1] && (data[1] != INT2PTR(1))) {
+	listPtr = (Tcl_Obj *)data[1];
+	data[1] = NULL;
+
+	TclNRAddCallback(interp, TclNRTailcallEval, listPtr, NULL, NULL, NULL);
     }
 
+    /* OPT ??
+     * Do not interrupt a series of cleanups with async or limit checks:
+     * just check at the end?
+     */
+
     if (TclAsyncReady(iPtr)) {
-	code = Tcl_AsyncInvoke(interp, code);
+	result = Tcl_AsyncInvoke(interp, result);
+    }
+    if ((result == TCL_OK) && TclCanceled(iPtr)) {
+	result = Tcl_Canceled(interp, TCL_LEAVE_ERR_MSG);
     }
-    if (code == TCL_OK && TclLimitReady(iPtr->limit)) {
-	code = Tcl_LimitCheck(interp);
+    if (result == TCL_OK && TclLimitReady(iPtr->limit)) {
+	result = Tcl_LimitCheck(interp);
     }
 
+    return result;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TEOV_Exception	 -
+ * TEOV_LookupCmdFromObj -
+ * TEOV_RunEnterTraces	 -
+ * TEOV_RunLeaveTraces	 -
+ * TEOV_NotFound	 -
+ *
+ *	These are helper functions for Tcl_EvalObjv.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+TEOV_PushExceptionHandlers(
+    Tcl_Interp *interp,
+    Tcl_Size objc,
+    Tcl_Obj *const objv[],
+    int flags)
+{
+    Interp *iPtr = (Interp *) interp;
+
     /*
-     * Call 'leave' command traces
+     * If any error processing is necessary, push the appropriate records.
+     * Note that we have to push them in the inverse order: first the one that
+     * has to run last.
      */
 
-    if (traced) {
-	if (!(cmdPtr->flags & CMD_IS_DELETED)) {
-	    if ((cmdPtr->flags & CMD_HAS_EXEC_TRACES) && traceCode == TCL_OK){
-		traceCode = TclCheckExecutionTraces(interp, command, length,
-			cmdPtr, code, TCL_TRACE_LEAVE_EXEC, objc, objv);
-	    }
-	    if (iPtr->tracePtr != NULL && traceCode == TCL_OK) {
-		traceCode = TclCheckInterpTraces(interp, command, length,
-			cmdPtr, code, TCL_TRACE_LEAVE_EXEC, objc, objv);
-	    }
-	}
+    if (!(flags & TCL_EVAL_INVOKE)) {
+	/*
+	 * Error messages
+	 */
 
+	TclNRAddCallback(interp, TEOV_Error, INT2PTR(objc),
+		objv, NULL, NULL);
+    }
+
+    if (iPtr->numLevels == 1) {
 	/*
-	 * If one of the trace invocation resulted in error, then change the
-	 * result code accordingly. Note, that the interp->result should
-	 * already be set correctly by the call to TraceExecutionProc.
+	 * No CONTINUE or BREAK at level 0, manage RETURN
 	 */
 
-	if (traceCode != TCL_OK) {
-	    code = traceCode;
-	}
-	if (commandPtr) {
-	    Tcl_DecrRefCount(commandPtr);
-	}
+	TclNRAddCallback(interp, TEOV_Exception, INT2PTR(iPtr->evalFlags),
+		NULL, NULL, NULL);
     }
+}
+
+static void
+TEOV_SwitchVarFrame(
+    Tcl_Interp *interp)
+{
+    Interp *iPtr = (Interp *) interp;
 
     /*
-     * Decrement the reference count of cmdPtr and deallocate it if it has
-     * dropped to zero.
+     * Change the varFrame to be the rootVarFrame, and push a record to
+     * restore things at the end.
      */
 
-    TclCleanupCommandMacro(cmdPtr);
+    TclNRAddCallback(interp, TEOV_RestoreVarFrame, iPtr->varFramePtr, NULL,
+	    NULL, NULL);
+    iPtr->varFramePtr = iPtr->rootFramePtr;
+}
+
+static int
+TEOV_RestoreVarFrame(
+    void *data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    ((Interp *) interp)->varFramePtr = (CallFrame *)data[0];
+    return result;
+}
+
+static int
+TEOV_Exception(
+    void *data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    Interp *iPtr = (Interp *) interp;
+    int allowExceptions = (PTR2INT(data[0]) & TCL_ALLOW_EXCEPTIONS);
+
+    if (result != TCL_OK) {
+	if (result == TCL_RETURN) {
+	    result = TclUpdateReturnInfo(iPtr);
+	}
+	if ((result != TCL_OK) && (result != TCL_ERROR) && !allowExceptions) {
+	    ProcessUnexpectedResult(interp, result);
+	    result = TCL_ERROR;
+	}
+    }
 
     /*
-     * If the interpreter has a non-empty string result, the result object is
-     * either empty or stale because some function set interp->result
-     * directly. If so, move the string result to the result object, then
-     * reset the string result.
+     * We are returning to level 0, so should process TclResetCancellation. As
+     * numLevels has not *yet* been decreased, do not call it: do the thing
+     * here directly.
      */
 
-    if (*(iPtr->result) != 0) {
-	(void) Tcl_GetObjResult(interp);
-    }
+    TclUnsetCancelFlags(iPtr);
+    return result;
+}
 
-#ifdef USE_DTRACE
-    if (TCL_DTRACE_CMD_RESULT_ENABLED()) {
-	Tcl_Obj *r;
+static int
+TEOV_Error(
+    void *data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    Interp *iPtr = (Interp *) interp;
+    Tcl_Obj *listPtr;
+    const char *cmdString;
+    Tcl_Size cmdLen;
+    Tcl_Size objc = PTR2INT(data[0]);
+    Tcl_Obj **objv = (Tcl_Obj **)data[1];
 
-	r = Tcl_GetObjResult(interp);
-	TCL_DTRACE_CMD_RESULT(TclGetString(objv[0]), code, TclGetString(r),r);
-    }
-#endif /* USE_DTRACE */
+    if ((result == TCL_ERROR) && !(iPtr->flags & ERR_ALREADY_LOGGED)) {
+	/*
+	 * If there was an error, a command string will be needed for the
+	 * error log: get it out of the itemPtr. The details depend on the
+	 * type.
+	 */
 
-  done:
-    if (savedVarFramePtr) {
-	iPtr->varFramePtr = savedVarFramePtr;
+	listPtr = Tcl_NewListObj(objc, objv);
+	cmdString = TclGetStringFromObj(listPtr, &cmdLen);
+	Tcl_LogCommandInfo(interp, cmdString, cmdString, cmdLen);
+	Tcl_DecrRefCount(listPtr);
     }
-    return code;
+    iPtr->flags &= ~ERR_ALREADY_LOGGED;
+    return result;
+}
 
-  notFound:
-    {
-	Namespace *currNsPtr = NULL;	/* Used to check for and invoke any
-					 * registered unknown command handler
-					 * for the current namespace (TIP
-					 * 181). */
-	int newObjc, handlerObjc;
-	Tcl_Obj **handlerObjv;
-
-	currNsPtr = varFramePtr->nsPtr;
-	if ((currNsPtr == NULL) || (currNsPtr->unknownHandlerPtr == NULL)) {
-	    currNsPtr = iPtr->globalNsPtr;
-	    if (currNsPtr == NULL) {
-		Tcl_Panic("TclEvalObjvInternal: NULL global namespace pointer");
-	    }
+static int
+TEOV_NotFound(
+    Tcl_Interp *interp,
+    Tcl_Size objc,
+    Tcl_Obj *const objv[],
+    Namespace *lookupNsPtr)
+{
+    Command * cmdPtr;
+    Interp *iPtr = (Interp *) interp;
+    Tcl_Size i, newObjc, handlerObjc;
+    Tcl_Obj **newObjv, **handlerObjv;
+    CallFrame *varFramePtr = iPtr->varFramePtr;
+    Namespace *currNsPtr = NULL;/* Used to check for and invoke any registered
+				 * unknown command handler for the current
+				 * namespace (TIP 181). */
+    Namespace *savedNsPtr = NULL;
+
+    currNsPtr = varFramePtr->nsPtr;
+    if ((currNsPtr == NULL) || (currNsPtr->unknownHandlerPtr == NULL)) {
+	currNsPtr = iPtr->globalNsPtr;
+	if (currNsPtr == NULL) {
+	    Tcl_Panic("TEOV_NotFound: NULL global namespace pointer");
 	}
+    }
 
-	/*
-	 * Check to see if the resolution namespace has lost its unknown
-	 * handler. If so, reset it to "::unknown".
-	 */
+    /*
+     * Check to see if the resolution namespace has lost its unknown handler.
+     * If so, reset it to "::unknown".
+     */
 
-	if (currNsPtr->unknownHandlerPtr == NULL) {
-	    TclNewLiteralStringObj(currNsPtr->unknownHandlerPtr, "::unknown");
-	    Tcl_IncrRefCount(currNsPtr->unknownHandlerPtr);
-	}
+    if (currNsPtr->unknownHandlerPtr == NULL) {
+	TclNewLiteralStringObj(currNsPtr->unknownHandlerPtr, "::unknown");
+	Tcl_IncrRefCount(currNsPtr->unknownHandlerPtr);
+    }
 
-	/*
-	 * Get the list of words for the unknown handler and allocate enough
-	 * space to hold both the handler prefix and all words of the command
-	 * invokation itself.
-	 */
+    /*
+     * Get the list of words for the unknown handler and allocate enough space
+     * to hold both the handler prefix and all words of the command invocation
+     * itself.
+     */
 
-	Tcl_ListObjGetElements(NULL, currNsPtr->unknownHandlerPtr,
-		&handlerObjc, &handlerObjv);
-	newObjc = objc + handlerObjc;
-	newObjv = (Tcl_Obj **) TclStackAlloc(interp,
-		(int) sizeof(Tcl_Obj *) * newObjc);
+    TclListObjGetElements(NULL, currNsPtr->unknownHandlerPtr,
+	    &handlerObjc, &handlerObjv);
+    newObjc = objc + handlerObjc;
+    newObjv = (Tcl_Obj **)TclStackAlloc(interp, sizeof(Tcl_Obj *) * newObjc);
 
-	/*
-	 * Copy command prefix from unknown handler and add on the real
-	 * command's full argument list. Note that we only use memcpy() once
-	 * because we have to increment the reference count of all the handler
-	 * arguments anyway.
-	 */
+    /*
+     * Copy command prefix from unknown handler and add on the real command's
+     * full argument list. Note that we only use memcpy() once because we have
+     * to increment the reference count of all the handler arguments anyway.
+     */
 
-	for (i = 0; i < handlerObjc; ++i) {
-	    newObjv[i] = handlerObjv[i];
-	    Tcl_IncrRefCount(newObjv[i]);
-	}
-	memcpy(newObjv+handlerObjc, objv, sizeof(Tcl_Obj *) * (unsigned)objc);
+    for (i = 0; i < handlerObjc; ++i) {
+	newObjv[i] = handlerObjv[i];
+	Tcl_IncrRefCount(newObjv[i]);
+    }
+    memcpy(newObjv + handlerObjc, objv, sizeof(Tcl_Obj *) * objc);
 
-	/*
-	 * Look up and invoke the handler (by recursive call to this
-	 * function). If there is no handler at all, instead of doing the
-	 * recursive call we just generate a generic error message; it would
-	 * be an infinite-recursion nightmare otherwise.
-	 */
+    /*
+     * Look up and invoke the handler (by recursive call to this function). If
+     * there is no handler at all, instead of doing the recursive call we just
+     * generate a generic error message; it would be an infinite-recursion
+     * nightmare otherwise.
+     *
+     * In this case we worry a bit less about recursion for now, and call the
+     * "blocking" interface.
+     */
 
-	cmdPtr = (Command *) Tcl_GetCommandFromObj(interp, newObjv[0]);
-	if (cmdPtr == NULL) {
-	    Tcl_AppendResult(interp, "invalid command name \"",
-		    TclGetString(objv[0]), "\"", NULL);
-	    code = TCL_ERROR;
-	} else {
-	    iPtr->numLevels++;
-	    code = TclEvalObjvInternal(interp, newObjc, newObjv, command,
-		    length, 0);
-	    iPtr->numLevels--;
-	}
+    cmdPtr = TEOV_LookupCmdFromObj(interp, newObjv[0], lookupNsPtr);
+    if (cmdPtr == NULL) {
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"invalid command name \"%s\"", TclGetString(objv[0])));
+	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "COMMAND",
+		TclGetString(objv[0]), (char *)NULL);
 
 	/*
 	 * Release any resources we locked and allocated during the handler
@@ -3945,89 +4914,165 @@ TclEvalObjvInternal(
 	    Tcl_DecrRefCount(newObjv[i]);
 	}
 	TclStackFree(interp, newObjv);
-	if (savedNsPtr) {
-	    varFramePtr->nsPtr = savedNsPtr;
-	}
-	goto done;
+	return TCL_ERROR;
     }
+
+    if (lookupNsPtr) {
+	savedNsPtr = varFramePtr->nsPtr;
+	varFramePtr->nsPtr = lookupNsPtr;
+    }
+    TclSkipTailcall(interp);
+    TclNRAddCallback(interp, TEOV_NotFoundCallback, INT2PTR(handlerObjc),
+	    newObjv, savedNsPtr, NULL);
+    return TclNREvalObjv(interp, newObjc, newObjv, TCL_EVAL_NOERR, NULL);
 }
-
-/*
- *----------------------------------------------------------------------
- *
- * Tcl_EvalObjv --
- *
- *	This function evaluates a Tcl command that has already been parsed
- *	into words, with one Tcl_Obj holding each word.
- *
- * Results:
- *	The return value is a standard Tcl completion code such as TCL_OK or
- *	TCL_ERROR. A result or error message is left in interp's result.
- *
- * Side effects:
- *	Depends on the command.
- *
- *----------------------------------------------------------------------
- */
 
-int
-Tcl_EvalObjv(
-    Tcl_Interp *interp,		/* Interpreter in which to evaluate the
-				 * command. Also used for error reporting. */
-    int objc,			/* Number of words in command. */
-    Tcl_Obj *const objv[],	/* An array of pointers to objects that are
-				 * the words that make up the command. */
-    int flags)			/* Collection of OR-ed bits that control the
-				 * evaluation of the script. Only
-				 * TCL_EVAL_GLOBAL and TCL_EVAL_INVOKE are
-				 * currently supported. */
+static int
+TEOV_NotFoundCallback(
+    void *data[],
+    Tcl_Interp *interp,
+    int result)
 {
     Interp *iPtr = (Interp *) interp;
-    int code = TCL_OK;
-    int allowExceptions = (iPtr->evalFlags & TCL_ALLOW_EXCEPTIONS);
+    Tcl_Size objc = PTR2INT(data[0]);
+    Tcl_Obj **objv = (Tcl_Obj **)data[1];
+    Namespace *savedNsPtr = (Namespace *)data[2];
 
-    iPtr->numLevels++;
-    code = TclEvalObjvInternal(interp, objc, objv, NULL, 0, flags);
-    iPtr->numLevels--;
+    Tcl_Size i;
 
-    if (code == TCL_OK) {
-	return code;
-    } else {
+    if (savedNsPtr) {
+	iPtr->varFramePtr->nsPtr = savedNsPtr;
+    }
 
-	/*
-	 * If we are again at the top level, process any unusual return code
-	 * returned by the evaluated code.
-	 */
+    /*
+     * Release any resources we locked and allocated during the handler call.
+     */
 
-	if (iPtr->numLevels == 0) {
-	    if (code == TCL_RETURN) {
-		code = TclUpdateReturnInfo(iPtr);
-	    }
-	    if ((code != TCL_ERROR) && !allowExceptions) {
-		ProcessUnexpectedResult(interp, code);
-		code = TCL_ERROR;
-	    }
+    for (i = 0; i < objc; ++i) {
+	Tcl_DecrRefCount(objv[i]);
+    }
+    TclStackFree(interp, objv);
+
+    return result;
+}
+
+static int
+TEOV_RunEnterTraces(
+    Tcl_Interp *interp,
+    Command **cmdPtrPtr,
+    Tcl_Obj *commandPtr,
+    Tcl_Size objc,
+    Tcl_Obj *const objv[])
+{
+    Interp *iPtr = (Interp *) interp;
+    Command *cmdPtr = *cmdPtrPtr;
+    Tcl_Size length, newEpoch, cmdEpoch = cmdPtr->cmdEpoch;
+    int traceCode = TCL_OK;
+    const char *command = TclGetStringFromObj(commandPtr, &length);
+
+    /*
+     * Call trace functions.
+     * Execute any command or execution traces. Note that we bump up the
+     * command's reference count for the duration of the calling of the
+     * traces so that the structure doesn't go away underneath our feet.
+     */
+
+    cmdPtr->refCount++;
+    if (iPtr->tracePtr) {
+	traceCode = TclCheckInterpTraces(interp, command, length,
+		cmdPtr, TCL_OK, TCL_TRACE_ENTER_EXEC, objc, objv);
+    }
+    if ((cmdPtr->flags & CMD_HAS_EXEC_TRACES) && (traceCode == TCL_OK)) {
+	traceCode = TclCheckExecutionTraces(interp, command, length,
+		cmdPtr, TCL_OK, TCL_TRACE_ENTER_EXEC, objc, objv);
+    }
+    newEpoch = cmdPtr->cmdEpoch;
+    TclCleanupCommandMacro(cmdPtr);
+
+    if (traceCode != TCL_OK) {
+	if (traceCode == TCL_ERROR) {
+	    Tcl_Obj *info;
+
+	    TclNewLiteralStringObj(info, "\n    (enter trace on \"");
+	    Tcl_AppendLimitedToObj(info, command, length, 55, "...");
+	    Tcl_AppendToObj(info, "\")", 2);
+	    Tcl_AppendObjToErrorInfo(interp, info);
+	    iPtr->flags |= ERR_ALREADY_LOGGED;
 	}
+	return traceCode;
+    }
+    if (cmdEpoch != newEpoch) {
+	*cmdPtrPtr = NULL;
+    }
+    return TCL_OK;
+}
 
-	if ((code == TCL_ERROR) && !(flags & TCL_EVAL_INVOKE)) {
-	    /*
-	     * If there was an error, a command string will be needed for the
-	     * error log: generate it now. Do not worry too much about doing
-	     * it expensively.
-	     */
+static int
+TEOV_RunLeaveTraces(
+    void *data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    Interp *iPtr = (Interp *) interp;
+    int traceCode = TCL_OK;
+    Tcl_Size objc = PTR2INT(data[0]);
+    Tcl_Obj *commandPtr = (Tcl_Obj *)data[1];
+    Command *cmdPtr = (Command *)data[2];
+    Tcl_Obj **objv = (Tcl_Obj **)data[3];
+    Tcl_Size length;
+    const char *command = TclGetStringFromObj(commandPtr, &length);
+
+    if (!(cmdPtr->flags & CMD_DYING)) {
+	if (cmdPtr->flags & CMD_HAS_EXEC_TRACES) {
+	    traceCode = TclCheckExecutionTraces(interp, command, length,
+		    cmdPtr, result, TCL_TRACE_LEAVE_EXEC, objc, objv);
+	}
+	if (iPtr->tracePtr != NULL && traceCode == TCL_OK) {
+	    traceCode = TclCheckInterpTraces(interp, command, length,
+		    cmdPtr, result, TCL_TRACE_LEAVE_EXEC, objc, objv);
+	}
+    }
 
-	    Tcl_Obj *listPtr;
-	    char *cmdString;
-	    int cmdLen;
+    /*
+     * As cmdPtr is set, TclNRRunCallbacks is about to reduce the numlevels.
+     * Prevent that by resetting the cmdPtr field and dealing right here with
+     * cmdPtr->refCount.
+     */
 
-	    listPtr = Tcl_NewListObj(objc, objv);
-	    cmdString = Tcl_GetStringFromObj(listPtr, &cmdLen);
-	    Tcl_LogCommandInfo(interp, cmdString, cmdString, cmdLen);
-	    Tcl_DecrRefCount(listPtr);
+    TclCleanupCommandMacro(cmdPtr);
+
+    if (traceCode != TCL_OK) {
+	if (traceCode == TCL_ERROR) {
+	    Tcl_Obj *info;
+
+	    TclNewLiteralStringObj(info, "\n    (leave trace on \"");
+	    Tcl_AppendLimitedToObj(info, command, length, 55, "...");
+	    Tcl_AppendToObj(info, "\")", 2);
+	    Tcl_AppendObjToErrorInfo(interp, info);
+	    iPtr->flags |= ERR_ALREADY_LOGGED;
 	}
+	result = traceCode;
+    }
+    Tcl_DecrRefCount(commandPtr);
+    return result;
+}
 
-	return code;
+static inline Command *
+TEOV_LookupCmdFromObj(
+    Tcl_Interp *interp,
+    Tcl_Obj *namePtr,
+    Namespace *lookupNsPtr)
+{
+    Interp *iPtr = (Interp *) interp;
+    Command *cmdPtr;
+    Namespace *savedNsPtr = iPtr->varFramePtr->nsPtr;
+
+    if (lookupNsPtr) {
+	iPtr->varFramePtr->nsPtr = lookupNsPtr;
     }
+    cmdPtr = (Command *) Tcl_GetCommandFromObj(interp, namePtr);
+    iPtr->varFramePtr->nsPtr = savedNsPtr;
+    return cmdPtr;
 }
 
 /*
@@ -4057,59 +5102,11 @@ Tcl_EvalTokensStandard(
 				 * errors. */
     Tcl_Token *tokenPtr,	/* Pointer to first in an array of tokens to
 				 * evaluate and concatenate. */
-    int count)			/* Number of tokens to consider at tokenPtr.
+    Tcl_Size count)		/* Number of tokens to consider at tokenPtr.
 				 * Must be at least 1. */
 {
     return TclSubstTokens(interp, tokenPtr, count, /* numLeftPtr */ NULL, 1,
-			  NULL, NULL);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * Tcl_EvalTokens --
- *
- *	Given an array of tokens parsed from a Tcl command (e.g., the tokens
- *	that make up a word or the index for an array variable) this function
- *	evaluates the tokens and concatenates their values to form a single
- *	result value.
- *
- * Results:
- *	The return value is a pointer to a newly allocated Tcl_Obj containing
- *	the value of the array of tokens. The reference count of the returned
- *	object has been incremented. If an error occurs in evaluating the
- *	tokens then a NULL value is returned and an error message is left in
- *	interp's result.
- *
- * Side effects:
- *	A new object is allocated to hold the result.
- *
- *----------------------------------------------------------------------
- *
- * This uses a non-standard return convention; its use is now deprecated. It
- * is a wrapper for the new function Tcl_EvalTokensStandard, and is not used
- * in the core any longer. It is only kept for backward compatibility.
- */
-
-Tcl_Obj *
-Tcl_EvalTokens(
-    Tcl_Interp *interp,		/* Interpreter in which to lookup variables,
-				 * execute nested commands, and report
-				 * errors. */
-    Tcl_Token *tokenPtr,	/* Pointer to first in an array of tokens to
-				 * evaluate and concatenate. */
-    int count)			/* Number of tokens to consider at tokenPtr.
-				 * Must be at least 1. */
-{
-    Tcl_Obj *resPtr;
-
-    if (Tcl_EvalTokensStandard(interp, tokenPtr, count) != TCL_OK) {
-	return NULL;
-    }
-    resPtr = Tcl_GetObjResult(interp);
-    Tcl_IncrRefCount(resPtr);
-    Tcl_ResetResult(interp);
-    return resPtr;
+	    NULL, NULL);
 }
 
 /*
@@ -4138,14 +5135,14 @@ Tcl_EvalEx(
     Tcl_Interp *interp,		/* Interpreter in which to evaluate the
 				 * script. Also used for error reporting. */
     const char *script,		/* First character of script to evaluate. */
-    int numBytes,		/* Number of bytes in script. If < 0, the
+    Tcl_Size numBytes,		/* Number of bytes in script. If -1, the
 				 * script consists of all bytes up to the
 				 * first null character. */
     int flags)			/* Collection of OR-ed bits that control the
 				 * evaluation of the script. Only
 				 * TCL_EVAL_GLOBAL is currently supported. */
 {
-  return TclEvalEx(interp, script, numBytes, flags, 1, NULL, script);
+    return TclEvalEx(interp, script, numBytes, flags, 1, NULL, script);
 }
 
 int
@@ -4153,66 +5150,63 @@ TclEvalEx(
     Tcl_Interp *interp,		/* Interpreter in which to evaluate the
 				 * script. Also used for error reporting. */
     const char *script,		/* First character of script to evaluate. */
-    int numBytes,		/* Number of bytes in script. If < 0, the
+    Tcl_Size numBytes,		/* Number of bytes in script. If -1, the
 				 * script consists of all bytes up to the
 				 * first NUL character. */
     int flags,			/* Collection of OR-ed bits that control the
 				 * evaluation of the script. Only
 				 * TCL_EVAL_GLOBAL is currently supported. */
-    int line,			/* The line the script starts on. */
-    int*  clNextOuter,       /* Information about an outer context for */
-    CONST char* outerScript) /* continuation line data. This is set only in
-			      * TclSubstTokens(), to properly handle
-			      * [...]-nested commands. The 'outerScript'
-			      * refers to the most-outer script containing the
-			      * embedded command, which is refered to by
-			      * 'script'. The 'clNextOuter' refers to the
-			      * current entry in the table of continuation
-			      * lines in this "master script", and the
-			      * character offsets are relative to the
-			      * 'outerScript' as well.
-			      *
-			      * If outerScript == script, then this call is
-			      * for the outer-most script/command. See
-			      * Tcl_EvalEx() and TclEvalObjEx() for places
-			      * generating arguments for which this is true.
-			      */
+    Tcl_Size line,		/* The line the script starts on. */
+    Tcl_Size *clNextOuter,	/* Information about an outer context for */
+    const char *outerScript)	/* continuation line data. This is set only in
+				 * TclSubstTokens(), to properly handle
+				 * [...]-nested commands. The 'outerScript'
+				 * refers to the most-outer script containing
+				 * the embedded command, which is referred to
+				 * by 'script'. The 'clNextOuter' refers to
+				 * the current entry in the table of
+				 * continuation lines in this "main script",
+				 * and the character offsets are relative to
+				 * the 'outerScript' as well.
+				 *
+				 * If outerScript == script, then this call is
+				 * for the outer-most script/command. See
+				 * Tcl_EvalEx() and TclEvalObjEx() for places
+				 * generating arguments for which this is
+				 * true. */
 {
     Interp *iPtr = (Interp *) interp;
     const char *p, *next;
-    const unsigned int minObjs = 20;
+    const int minObjs = 20;
     Tcl_Obj **objv, **objvSpace;
-    int *expand, *lines, *lineSpace;
+    char *expand;
+    Tcl_Size *lines, *lineSpace;
     Tcl_Token *tokenPtr;
-    int commandLength, bytesLeft, expandRequested, code = TCL_OK;
+    int expandRequested, code = TCL_OK;
+    Tcl_Size bytesLeft, commandLength;
     CallFrame *savedVarFramePtr;/* Saves old copy of iPtr->varFramePtr in case
 				 * TCL_EVAL_GLOBAL was set. */
     int allowExceptions = (iPtr->evalFlags & TCL_ALLOW_EXCEPTIONS);
     int gotParse = 0;
-    unsigned int i, objectsUsed = 0;
+    Tcl_Size i, objectsUsed = 0;
 				/* These variables keep track of how much
 				 * state has been allocated while evaluating
 				 * the script, so that it can be freed
 				 * properly if an error occurs. */
-    Tcl_Parse *parsePtr = (Tcl_Parse *)
-	    TclStackAlloc(interp, sizeof(Tcl_Parse));
-    CmdFrame *eeFramePtr = (CmdFrame *)
-	    TclStackAlloc(interp, sizeof(CmdFrame));
-    Tcl_Obj **stackObjArray = (Tcl_Obj **)
-	    TclStackAlloc(interp, minObjs * sizeof(Tcl_Obj *));
-    int *expandStack = (int *) TclStackAlloc(interp, minObjs * sizeof(int));
-    int *linesStack = (int *) TclStackAlloc(interp, minObjs * sizeof(int));
+    Tcl_Parse *parsePtr = (Tcl_Parse *)TclStackAlloc(interp, sizeof(Tcl_Parse));
+    CmdFrame *eeFramePtr = (CmdFrame *)TclStackAlloc(interp, sizeof(CmdFrame));
+    Tcl_Obj **stackObjArray = (Tcl_Obj **)TclStackAlloc(interp, minObjs * sizeof(Tcl_Obj *));
+    char *expandStack = (char *)TclStackAlloc(interp, minObjs * sizeof(char));
+    Tcl_Size *linesStack = (Tcl_Size *)TclStackAlloc(interp, minObjs * sizeof(Tcl_Size));
 				/* TIP #280 Structures for tracking of command
 				 * locations. */
-    /*
-     * Pointer for the tracking of invisible continuation lines. Initialized
-     * only if the caller gave us a table of locations to track, via
-     * scriptCLLocPtr. It always refers to the table entry holding the
-     * location of the next invisible continuation line to look for, while
-     * parsing the script.
-     */
-
-    int* clNext = NULL;
+    Tcl_Size *clNext = NULL;	/* Pointer for the tracking of invisible
+				 * continuation lines. Initialized only if the
+				 * caller gave us a table of locations to
+				 * track, via scriptCLLocPtr. It always refers
+				 * to the table entry holding the location of
+				 * the next invisible continuation line to
+				 * look for, while parsing the script. */
 
     if (iPtr->scriptCLLocPtr) {
 	if (clNextOuter) {
@@ -4246,23 +5240,22 @@ TclEvalEx(
     /*
      * TIP #280 Initialize tracking. Do not push on the frame stack yet.
      *
-     * We may continue counting based on a specific context (CTX), or open a
-     * new context, either for a sourced script, or 'eval'. For sourced files
-     * we always have a path object, even if nothing was specified in the
-     * interp itself. That makes code using it simpler as NULL checks can be
-     * left out. Sourced file without path in the 'scriptFile' is possible
-     * during Tcl initialization.
+     * We open a new context, either for a sourced script, or 'eval'.
+     * For sourced files we always have a path object, even if nothing was
+     * specified in the interp itself. That makes code using it simpler as
+     * NULL checks can be left out. Sourced file without path in the
+     * 'scriptFile' is possible during Tcl initialization.
      */
 
-    if (iPtr->evalFlags & TCL_EVAL_CTX) {
-	/*
-	 * Path information comes out of the context.
-	 */
+    eeFramePtr->level = iPtr->cmdFramePtr ? iPtr->cmdFramePtr->level + 1 : 1;
+    eeFramePtr->framePtr = iPtr->framePtr;
+    eeFramePtr->nextPtr = iPtr->cmdFramePtr;
+    eeFramePtr->nline = 0;
+    eeFramePtr->line = NULL;
+    eeFramePtr->cmdObj = NULL;
 
-	eeFramePtr->type = TCL_LOCATION_SOURCE;
-	eeFramePtr->data.eval.path = iPtr->invokeCmdFramePtr->data.eval.path;
-	Tcl_IncrRefCount(eeFramePtr->data.eval.path);
-    } else if (iPtr->evalFlags & TCL_EVAL_FILE) {
+    iPtr->cmdFramePtr = eeFramePtr;
+    if (iPtr->evalFlags & TCL_EVAL_FILE) {
 	/*
 	 * Set up for a sourced file.
 	 */
@@ -4283,6 +5276,7 @@ TclEvalEx(
 		/*
 		 * Error message in the interp result.
 		 */
+
 		code = TCL_ERROR;
 		goto error;
 	    }
@@ -4300,17 +5294,13 @@ TclEvalEx(
 	eeFramePtr->data.eval.path = NULL;
     }
 
-    eeFramePtr->level = iPtr->cmdFramePtr ? iPtr->cmdFramePtr->level + 1 : 1;
-    eeFramePtr->framePtr = iPtr->framePtr;
-    eeFramePtr->nextPtr = iPtr->cmdFramePtr;
-    eeFramePtr->nline = 0;
-    eeFramePtr->line = NULL;
-
     iPtr->evalFlags = 0;
     do {
 	if (Tcl_ParseCommand(interp, p, bytesLeft, 0, parsePtr) != TCL_OK) {
 	    code = TCL_ERROR;
-	    goto error;
+	    Tcl_LogCommandInfo(interp, script, parsePtr->commandStart,
+		    parsePtr->term + 1 - parsePtr->commandStart);
+	    goto posterror;
 	}
 
 	/*
@@ -4320,8 +5310,8 @@ TclEvalEx(
 	 */
 
 	TclAdvanceLines(&line, p, parsePtr->commandStart);
-	TclAdvanceContinuations (&line, &clNext,
-				 parsePtr->commandStart - outerScript);
+	TclAdvanceContinuations(&line, &clNext,
+		parsePtr->commandStart - outerScript);
 
 	gotParse = 1;
 	if (parsePtr->numWords > 0) {
@@ -4332,30 +5322,33 @@ TclEvalEx(
 	     * per-command parsing.
 	     */
 
-	    int wordLine  = line;
+	    Tcl_Size wordLine = line;
 	    const char *wordStart = parsePtr->commandStart;
-	    int*        wordCLNext = clNext;
+	    Tcl_Size *wordCLNext = clNext;
+	    Tcl_Size objectsNeeded = 0;
+	    Tcl_Size numWords = parsePtr->numWords;
 
 	    /*
 	     * Generate an array of objects for the words of the command.
 	     */
 
-	    unsigned int objectsNeeded = 0;
-	    unsigned int numWords = parsePtr->numWords;
-
 	    if (numWords > minObjs) {
-		expand = (int *) ckalloc(numWords * sizeof(int));
+		expand = (char *)Tcl_Alloc(numWords * sizeof(char));
 		objvSpace = (Tcl_Obj **)
-			ckalloc(numWords * sizeof(Tcl_Obj *));
-		lineSpace = (int *) ckalloc(numWords * sizeof(int));
+			Tcl_Alloc(numWords * sizeof(Tcl_Obj *));
+		lineSpace = (Tcl_Size *)
+			Tcl_Alloc(numWords * sizeof(Tcl_Size));
 	    }
 	    expandRequested = 0;
 	    objv = objvSpace;
 	    lines = lineSpace;
 
+	    iPtr->cmdFramePtr = eeFramePtr->nextPtr;
 	    for (objectsUsed = 0, tokenPtr = parsePtr->tokenPtr;
 		    objectsUsed < numWords;
-		    objectsUsed++, tokenPtr += tokenPtr->numComponents+1) {
+		    objectsUsed++, tokenPtr += tokenPtr->numComponents + 1) {
+		Tcl_Size additionalObjsCount;
+
 		/*
 		 * TIP #280. Track lines to current word. Save the information
 		 * on a per-word basis, signaling dynamic words as needed.
@@ -4365,8 +5358,8 @@ TclEvalEx(
 		 */
 
 		TclAdvanceLines(&wordLine, wordStart, tokenPtr->start);
-		TclAdvanceContinuations (&wordLine, &wordCLNext,
-					 tokenPtr->start - outerScript);
+		TclAdvanceContinuations(&wordLine, &wordCLNext,
+			tokenPtr->start - outerScript);
 		wordStart = tokenPtr->start;
 
 		lines[objectsUsed] = TclWordKnownAtCompileTime(tokenPtr, NULL)
@@ -4376,19 +5369,19 @@ TclEvalEx(
 		    iPtr->evalFlags |= TCL_EVAL_FILE;
 		}
 
-		code = TclSubstTokens(interp, tokenPtr+1,
+		code = TclSubstTokens(interp, tokenPtr + 1,
 			tokenPtr->numComponents, NULL, wordLine,
-		        wordCLNext, outerScript);
+			wordCLNext, outerScript);
 
 		iPtr->evalFlags = 0;
 
 		if (code != TCL_OK) {
-		    goto error;
+		    break;
 		}
 		objv[objectsUsed] = Tcl_GetObjResult(interp);
 		Tcl_IncrRefCount(objv[objectsUsed]);
 		if (tokenPtr->type == TCL_TOKEN_EXPAND_WORD) {
-		    int numElements;
+		    Tcl_Size numElements;
 
 		    code = TclListObjLength(interp, objv[objectsUsed],
 			    &numElements);
@@ -4398,48 +5391,60 @@ TclEvalEx(
 			 */
 
 			Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
-				"\n    (expanding word %d)", objectsUsed));
+				"\n    (expanding word %" TCL_SIZE_MODIFIER "d)", objectsUsed));
 			Tcl_DecrRefCount(objv[objectsUsed]);
-			goto error;
+			break;
 		    }
 		    expandRequested = 1;
 		    expand[objectsUsed] = 1;
 
-		    objectsNeeded += (numElements ? numElements : 1);
+		    additionalObjsCount = (numElements ? numElements : 1);
+
 		} else {
 		    expand[objectsUsed] = 0;
-		    objectsNeeded++;
+		    additionalObjsCount = 1;
 		}
 
+		/* Currently max command words in INT_MAX */
+		if (additionalObjsCount > INT_MAX ||
+			objectsNeeded > (INT_MAX - additionalObjsCount)) {
+		    code = TclCommandWordLimitError(interp, -1);
+		    Tcl_DecrRefCount(objv[objectsUsed]);
+		    break;
+		}
+		objectsNeeded += additionalObjsCount;
+
 		if (wordCLNext) {
-		    TclContinuationsEnterDerived (objv[objectsUsed],
-				  wordStart - outerScript, wordCLNext);
+		    TclContinuationsEnterDerived(objv[objectsUsed],
+			    wordStart - outerScript, wordCLNext);
 		}
 	    } /* for loop */
+	    iPtr->cmdFramePtr = eeFramePtr;
+	    if (code != TCL_OK) {
+		goto error;
+	    }
 	    if (expandRequested) {
 		/*
 		 * Some word expansion was requested. Check for objv resize.
 		 */
 
 		Tcl_Obj **copy = objvSpace;
-		int *lcopy = lineSpace;
-		int wordIdx = numWords;
-		int objIdx = objectsNeeded - 1;
-
-		if ((numWords > minObjs) || (objectsNeeded >  minObjs)) {
-		    objv = objvSpace = (Tcl_Obj **)
-			    ckalloc(objectsNeeded * sizeof(Tcl_Obj *));
-		    lines = lineSpace = (int *)
-			    ckalloc(objectsNeeded * sizeof(int));
+		Tcl_Size *lcopy = lineSpace;
+		Tcl_Size wordIdx = numWords;
+		Tcl_Size objIdx = objectsNeeded - 1;
+
+		if ((numWords > minObjs) || (objectsNeeded > minObjs)) {
+		    objv = objvSpace = (Tcl_Obj **)Tcl_Alloc(objectsNeeded * sizeof(Tcl_Obj *));
+		    lines = lineSpace = (Tcl_Size *)Tcl_Alloc(objectsNeeded * sizeof(Tcl_Size));
 		}
 
 		objectsUsed = 0;
 		while (wordIdx--) {
 		    if (expand[wordIdx]) {
-			int numElements;
+			Tcl_Size numElements;
 			Tcl_Obj **elements, *temp = copy[wordIdx];
 
-			Tcl_ListObjGetElements(NULL, temp, &numElements,
+			TclListObjGetElements(NULL, temp, &numElements,
 				&elements);
 			objectsUsed += numElements;
 			while (numElements--) {
@@ -4454,13 +5459,13 @@ TclEvalEx(
 			objectsUsed++;
 		    }
 		}
-		objv += objIdx+1;
+		objv += objIdx + 1;
 
 		if (copy != stackObjArray) {
-		    ckfree((char *) copy);
+		    Tcl_Free(copy);
 		}
 		if (lcopy != linesStack) {
-		    ckfree((char *) lcopy);
+		    Tcl_Free(lcopy);
 		}
 	    }
 
@@ -4474,28 +5479,28 @@ TclEvalEx(
 	     * have been executed.
 	     */
 
-	    eeFramePtr->cmd.str.cmd = parsePtr->commandStart;
-	    eeFramePtr->cmd.str.len = parsePtr->commandSize;
+	    eeFramePtr->cmd = parsePtr->commandStart;
+	    eeFramePtr->len = parsePtr->commandSize;
 
 	    if (parsePtr->term ==
 		    parsePtr->commandStart + parsePtr->commandSize - 1) {
-		eeFramePtr->cmd.str.len--;
+		eeFramePtr->len--;
 	    }
 
 	    eeFramePtr->nline = objectsUsed;
 	    eeFramePtr->line = lines;
 
-	    TclArgumentEnter (interp, objv, objectsUsed, eeFramePtr);
-	    iPtr->cmdFramePtr = eeFramePtr;
-	    iPtr->numLevels++;
-	    code = TclEvalObjvInternal(interp, objectsUsed, objv,
-		    parsePtr->commandStart, parsePtr->commandSize, 0);
-	    iPtr->numLevels--;
-	    iPtr->cmdFramePtr = iPtr->cmdFramePtr->nextPtr;
-	    TclArgumentRelease (interp, objv, objectsUsed);
+	    TclArgumentEnter(interp, objv, objectsUsed, eeFramePtr);
+	    code = Tcl_EvalObjv(interp, objectsUsed, objv,
+		    TCL_EVAL_NOERR | TCL_EVAL_SOURCE_IN_FRAME);
+	    TclArgumentRelease(interp, objv, objectsUsed);
 
 	    eeFramePtr->line = NULL;
 	    eeFramePtr->nline = 0;
+	    if (eeFramePtr->cmdObj) {
+		Tcl_DecrRefCount(eeFramePtr->cmdObj);
+		eeFramePtr->cmdObj = NULL;
+	    }
 
 	    if (code != TCL_OK) {
 		goto error;
@@ -4505,9 +5510,9 @@ TclEvalEx(
 	    }
 	    objectsUsed = 0;
 	    if (objvSpace != stackObjArray) {
-		ckfree((char *) objvSpace);
+		Tcl_Free(objvSpace);
 		objvSpace = stackObjArray;
-		ckfree((char *) lineSpace);
+		Tcl_Free(lineSpace);
 		lineSpace = linesStack;
 	    }
 
@@ -4517,7 +5522,7 @@ TclEvalEx(
 	     */
 
 	    if (expand != expandStack) {
-		ckfree((char *) expand);
+		Tcl_Free(expand);
 		expand = expandStack;
 	    }
 	}
@@ -4569,6 +5574,7 @@ TclEvalEx(
 	Tcl_LogCommandInfo(interp, script, parsePtr->commandStart,
 		commandLength);
     }
+ posterror:
     iPtr->flags &= ~ERR_ALREADY_LOGGED;
 
     /*
@@ -4582,11 +5588,11 @@ TclEvalEx(
 	Tcl_FreeParse(parsePtr);
     }
     if (objvSpace != stackObjArray) {
-	ckfree((char *) objvSpace);
-	ckfree((char *) lineSpace);
+	Tcl_Free(objvSpace);
+	Tcl_Free(lineSpace);
     }
     if (expand != expandStack) {
-	ckfree((char *) expand);
+	Tcl_Free(expand);
     }
     iPtr->varFramePtr = savedVarFramePtr;
 
@@ -4595,6 +5601,7 @@ TclEvalEx(
      * TIP #280. Release the local CmdFrame, and its contents.
      */
 
+    iPtr->cmdFramePtr = iPtr->cmdFramePtr->nextPtr;
     if (eeFramePtr->type == TCL_LOCATION_SOURCE) {
 	Tcl_DecrRefCount(eeFramePtr->data.eval.path);
     }
@@ -4627,11 +5634,11 @@ TclEvalEx(
 
 void
 TclAdvanceLines(
-    int *line,
+    Tcl_Size *line,
     const char *start,
     const char *end)
 {
-    register const char *p;
+    const char *p;
 
     for (p = start; p < end; p++) {
 	if (*p == '\n') {
@@ -4661,29 +5668,31 @@ TclAdvanceLines(
  */
 
 void
-TclAdvanceContinuations (line,clNextPtrPtr,loc)
-     int* line;
-     int** clNextPtrPtr;
-     int loc;
+TclAdvanceContinuations(
+    Tcl_Size *line,
+    Tcl_Size **clNextPtrPtr,
+    int loc)
 {
     /*
-     * Track the invisible continuation lines embedded in a script, if
-     * any. Here they are just spaces (already). They were removed by
-     * TclSubstTokens() via TclParseBackslash().
+     * Track the invisible continuation lines embedded in a script, if any.
+     * Here they are just spaces (already). They were removed by
+     * TclSubstTokens via TclParseBackslash.
      *
      * *clNextPtrPtr         <=> We have continuation lines to track.
      * **clNextPtrPtr >= 0   <=> We are not beyond the last possible location.
      * loc >= **clNextPtrPtr <=> We stepped beyond the current cont. line.
      */
 
-    while (*clNextPtrPtr && (**clNextPtrPtr >= 0) && (loc >= **clNextPtrPtr)) {
+    while (*clNextPtrPtr && (**clNextPtrPtr >= 0)
+	    && (loc >= **clNextPtrPtr)) {
 	/*
 	 * We just stepped over an invisible continuation line. Adjust the
 	 * line counter and step to the table entry holding the location of
 	 * the next continuation line to track.
 	 */
-	(*line) ++;
-	(*clNextPtrPtr) ++;
+
+	(*line)++;
+	(*clNextPtrPtr)++;
     }
 }
 
@@ -4701,8 +5710,8 @@ TclAdvanceContinuations (line,clNextPtrPtr,loc)
  *
  * TclArgumentEnter --
  *
- *	This procedure is a helper for the TIP #280 uplevel extension.
- *	It enters location references for the arguments of a command to be
+ *	This procedure is a helper for the TIP #280 uplevel extension. It
+ *	enters location references for the arguments of a command to be
  *	invoked. Only the first entry has the actual data, further entries
  *	simply count the usage up.
  *
@@ -4717,45 +5726,50 @@ TclAdvanceContinuations (line,clNextPtrPtr,loc)
  */
 
 void
-TclArgumentEnter(interp,objv,objc,cfPtr)
-     Tcl_Interp* interp;
-     Tcl_Obj**   objv;
-     int         objc;
-     CmdFrame*   cfPtr;
-{
-    Interp* iPtr = (Interp*) interp;
-    int new, i;
-    Tcl_HashEntry* hPtr;
-    CFWord* cfwPtr;
-
-    for (i=1; i < objc; i++) {
+TclArgumentEnter(
+    Tcl_Interp *interp,
+    Tcl_Obj **objv,
+    Tcl_Size objc,
+    CmdFrame *cfPtr)
+{
+    Interp *iPtr = (Interp *) interp;
+    int isNew;
+    Tcl_Size i;
+    Tcl_HashEntry *hPtr;
+    CFWord *cfwPtr;
+
+    for (i = 1; i < objc; i++) {
 	/*
-	 * Ignore argument words without line information (= dynamic).  If
-	 * they are variables they may have location information associated
-	 * with that, either through globally recorded 'set' invokations, or
-	 * literals in bytecode. Eitehr way there is no need to record
+	 * Ignore argument words without line information (= dynamic). If they
+	 * are variables they may have location information associated with
+	 * that, either through globally recorded 'set' invocations, or
+	 * literals in bytecode. Either way there is no need to record
 	 * something here.
 	 */
 
-	if (cfPtr->line [i] < 0) continue;
-	hPtr = Tcl_CreateHashEntry (iPtr->lineLAPtr, (char*) objv[i], &new);
-	if (new) {
-           /*
-	    * The word is not on the stack yet, remember the current location
-	    * and initialize references.
-            */
-           cfwPtr = (CFWord*) ckalloc (sizeof (CFWord));
-           cfwPtr->framePtr = cfPtr;
-           cfwPtr->word     = i;
-           cfwPtr->refCount = 1;
-           Tcl_SetHashValue (hPtr, cfwPtr);
+	if (cfPtr->line[i] < 0) {
+	    continue;
+	}
+	hPtr = Tcl_CreateHashEntry(iPtr->lineLAPtr, objv[i], &isNew);
+	if (isNew) {
+	    /*
+	     * The word is not on the stack yet, remember the current location
+	     * and initialize references.
+	     */
+
+	    cfwPtr = (CFWord *)Tcl_Alloc(sizeof(CFWord));
+	    cfwPtr->framePtr = cfPtr;
+	    cfwPtr->word = i;
+	    cfwPtr->refCount = 1;
+	    Tcl_SetHashValue(hPtr, cfwPtr);
 	} else {
-           /*
-	    * The word is already on the stack, its current location is not
-            * relevant. Just remember the reference to prevent early removal.
-            */
-           cfwPtr = (CFWord*) Tcl_GetHashValue (hPtr);
-           cfwPtr->refCount ++;
+	    /*
+	     * The word is already on the stack, its current location is not
+	     * relevant. Just remember the reference to prevent early removal.
+	     */
+
+	    cfwPtr = (CFWord *)Tcl_GetHashValue(hPtr);
+	    cfwPtr->refCount++;
 	}
     }
 }
@@ -4765,10 +5779,10 @@ TclArgumentEnter(interp,objv,objc,cfPtr)
  *
  * TclArgumentRelease --
  *
- *	This procedure is a helper for the TIP #280 uplevel extension.
- *	It removes the location references for the arguments of a command
- *	just done. Usage is counted down, the data is removed only when
- *	no user is left over.
+ *	This procedure is a helper for the TIP #280 uplevel extension. It
+ *	removes the location references for the arguments of a command just
+ *	done. Usage is counted down, the data is removed only when no user is
+ *	left over.
  *
  * Results:
  *	None.
@@ -4781,27 +5795,29 @@ TclArgumentEnter(interp,objv,objc,cfPtr)
  */
 
 void
-TclArgumentRelease(interp,objv,objc)
-     Tcl_Interp* interp;
-     Tcl_Obj**   objv;
-     int         objc;
-{
-    Interp*        iPtr = (Interp*) interp;
-    Tcl_HashEntry* hPtr;
-    CFWord*        cfwPtr;
-    int i;
+TclArgumentRelease(
+    Tcl_Interp *interp,
+    Tcl_Obj **objv,
+    Tcl_Size objc)
+{
+    Interp *iPtr = (Interp *) interp;
+    Tcl_Size i;
 
-    for (i=1; i < objc; i++) {
-       hPtr = Tcl_FindHashEntry (iPtr->lineLAPtr, (char *) objv[i]);
+    for (i = 1; i < objc; i++) {
+	CFWord *cfwPtr;
+	Tcl_HashEntry *hPtr = Tcl_FindHashEntry(iPtr->lineLAPtr, objv[i]);
 
-       if (!hPtr) { continue; }
-       cfwPtr = (CFWord*) Tcl_GetHashValue (hPtr);
+	if (!hPtr) {
+	    continue;
+	}
+	cfwPtr = (CFWord *)Tcl_GetHashValue(hPtr);
 
-       cfwPtr->refCount --;
-       if (cfwPtr->refCount > 0) { continue; }
+	if (cfwPtr->refCount-- > 1) {
+	    continue;
+	}
 
-       ckfree ((char*) cfwPtr);
-       Tcl_DeleteHashEntry (hPtr);
+	Tcl_Free(cfwPtr);
+	Tcl_DeleteHashEntry(hPtr);
     }
 }
 
@@ -4810,9 +5826,9 @@ TclArgumentRelease(interp,objv,objc)
  *
  * TclArgumentBCEnter --
  *
- *	This procedure is a helper for the TIP #280 uplevel extension.
- *	It enters location references for the literal arguments of commands
- *	in bytecode about to be invoked. Only the first entry has the actual
+ *	This procedure is a helper for the TIP #280 uplevel extension. It
+ *	enters location references for the literal arguments of commands in
+ *	bytecode about to be invoked. Only the first entry has the actual
  *	data, further entries simply count the usage up.
  *
  * Results:
@@ -4826,73 +5842,93 @@ TclArgumentRelease(interp,objv,objc)
  */
 
 void
-TclArgumentBCEnter(interp,objv,objc,codePtr,cfPtr,pc)
-     Tcl_Interp* interp;
-     Tcl_Obj*    objv[];
-     int         objc;
-     void*       codePtr;
-     CmdFrame*   cfPtr;
-     int         pc;
-{
-    Interp*        iPtr  = (Interp*) interp;
-    Tcl_HashEntry* hePtr = Tcl_FindHashEntry (iPtr->lineBCPtr, (char *) codePtr);
-
-    if (hePtr) {
-	ExtCmdLoc* eclPtr = (ExtCmdLoc*) Tcl_GetHashValue (hePtr);
-	hePtr = Tcl_FindHashEntry(&eclPtr->litInfo, INT2PTR(pc));
-
-	if (hePtr) {
-	    int  cmd  = PTR2INT(Tcl_GetHashValue(hePtr));
-	    ECL* ePtr = &eclPtr->loc[cmd];
-	    int word;
+TclArgumentBCEnter(
+    Tcl_Interp *interp,
+    Tcl_Obj *objv[],
+    Tcl_Size objc,
+    void *codePtr,
+    CmdFrame *cfPtr,
+    Tcl_Size cmd,
+    Tcl_Size pc)
+{
+    ExtCmdLoc *eclPtr;
+    Tcl_Size word;
+    ECL *ePtr;
+    CFWordBC *lastPtr = NULL;
+    Interp *iPtr = (Interp *) interp;
+    Tcl_HashEntry *hePtr = Tcl_FindHashEntry(iPtr->lineBCPtr, codePtr);
 
-	    /*
-	     * A few truths ...
-	     * (1) ePtr->nline == objc
-	     * (2) (ePtr->line[word] < 0) => !literal, for all words
-	     * (3) (word == 0) => !literal
-	     *
-	     * Item (2) is why we can use objv to get the literals, and do not
-	     * have to save them at compile time.
-	     */
+    if (!hePtr) {
+	return;
+    }
+    eclPtr = (ExtCmdLoc *)Tcl_GetHashValue(hePtr);
+    ePtr = &eclPtr->loc[cmd];
 
-	    if (ePtr->nline != objc) {
-		Tcl_Panic ("TIP 280 data structure inconsistency");
-	    }
+    /*
+     * ePtr->nline is the number of words originally parsed.
+     *
+     * objc is the number of elements getting invoked.
+     *
+     * If they are not the same, we arrived here by compiling an
+     * ensemble dispatch.  Ensemble subcommands that lead to script
+     * evaluation are not supposed to get compiled, because a command
+     * such as [info level] in the script can expose some of the dispatch
+     * shenanigans.  This means that we don't have to tend to the
+     * housekeeping, and can escape now.
+     */
 
-	    for (word = 1; word < objc; word++) {
-		if (ePtr->line[word] >= 0) {
-		    int isnew;
-		    Tcl_HashEntry* hPtr =
-			Tcl_CreateHashEntry (iPtr->lineLABCPtr,
-					     (char*) objv[word], &isnew);
-		    CFWordBC* cfwPtr = (CFWordBC*) ckalloc (sizeof (CFWordBC));
+    if (ePtr->nline != objc) {
+	return;
+    }
 
-		    cfwPtr->framePtr = cfPtr;
-		    cfwPtr->pc       = pc;
-		    cfwPtr->word     = word;
+    /*
+     * Having disposed of the ensemble cases, we can state...
+     * A few truths ...
+     * (1) ePtr->nline == objc
+     * (2) (ePtr->line[word] < 0) => !literal, for all words
+     * (3) (word == 0) => !literal
+     *
+     * Item (2) is why we can use objv to get the literals, and do not
+     * have to save them at compile time.
+     */
 
-		    if (isnew) {
-			/*
-			 * The word is not on the stack yet, remember the
-			 * current location and initialize references.
-			 */
-			cfwPtr->prevPtr = NULL;
-		    } else {
-			/*
-			 * The object is already on the stack, however it may
-			 * have a different location now (literal sharing may
-			 * map multiple location to a single Tcl_Obj*. Save
-			 * the old information in the new structure.
-			 */
-			cfwPtr->prevPtr = (CFWordBC*) Tcl_GetHashValue(hPtr);
-		    }
+    for (word = 1; word < objc; word++) {
+	if (ePtr->line[word] >= 0) {
+	    int isNew;
+	    Tcl_HashEntry *hPtr = Tcl_CreateHashEntry(iPtr->lineLABCPtr,
+		    objv[word], &isNew);
+	    CFWordBC *cfwPtr = (CFWordBC *)Tcl_Alloc(sizeof(CFWordBC));
 
-		    Tcl_SetHashValue (hPtr, cfwPtr);
-		}
-	    } /* for */
-	} /* if */
-    } /* if */
+	    cfwPtr->framePtr = cfPtr;
+	    cfwPtr->obj = objv[word];
+	    cfwPtr->pc = pc;
+	    cfwPtr->word = word;
+	    cfwPtr->nextPtr = lastPtr;
+	    lastPtr = cfwPtr;
+
+	    if (isNew) {
+		/*
+		 * The word is not on the stack yet, remember the current
+		 * location and initialize references.
+		 */
+
+		cfwPtr->prevPtr = NULL;
+	    } else {
+		/*
+		 * The object is already on the stack, however it may have
+		 * a different location now (literal sharing may map
+		 * multiple location to a single Tcl_Obj*. Save the old
+		 * information in the new structure.
+		 */
+
+		cfwPtr->prevPtr = (CFWordBC *)Tcl_GetHashValue(hPtr);
+	    }
+
+	    Tcl_SetHashValue(hPtr, cfwPtr);
+	}
+    } /* for */
+
+    cfPtr->litarg = lastPtr;
 }
 
 /*
@@ -4900,10 +5936,10 @@ TclArgumentBCEnter(interp,objv,objc,codePtr,cfPtr,pc)
  *
  * TclArgumentBCRelease --
  *
- *	This procedure is a helper for the TIP #280 uplevel extension.
- *	It removes the location references for the literal arguments of
- *	commands in bytecode just done. Usage is counted down, the data
- *	is removed only when no user is left over.
+ *	This procedure is a helper for the TIP #280 uplevel extension. It
+ *	removes the location references for the literal arguments of commands
+ *	in bytecode just done. Usage is counted down, the data is removed only
+ *	when no user is left over.
  *
  * Results:
  *	None.
@@ -4916,48 +5952,34 @@ TclArgumentBCEnter(interp,objv,objc,codePtr,cfPtr,pc)
  */
 
 void
-TclArgumentBCRelease(interp,objv,objc,codePtr,pc)
-     Tcl_Interp* interp;
-     Tcl_Obj*    objv[];
-     int         objc;
-     void*       codePtr;
-     int         pc;
+TclArgumentBCRelease(
+    Tcl_Interp *interp,
+    CmdFrame *cfPtr)
 {
-    Interp*        iPtr  = (Interp*) interp;
-    Tcl_HashEntry* hePtr = Tcl_FindHashEntry (iPtr->lineBCPtr, (char *) codePtr);
-
-    if (hePtr) {
-	ExtCmdLoc* eclPtr = (ExtCmdLoc*) Tcl_GetHashValue (hePtr);
-	hePtr = Tcl_FindHashEntry(&eclPtr->litInfo, INT2PTR(pc));
+    Interp *iPtr = (Interp *) interp;
+    CFWordBC *cfwPtr = (CFWordBC *) cfPtr->litarg;
 
-	if (hePtr) {
-	    int  cmd  = PTR2INT(Tcl_GetHashValue(hePtr));
-	    ECL* ePtr = &eclPtr->loc[cmd];
-	    int word;
+    while (cfwPtr) {
+	CFWordBC *nextPtr = cfwPtr->nextPtr;
+	Tcl_HashEntry *hPtr =
+		Tcl_FindHashEntry(iPtr->lineLABCPtr, cfwPtr->obj);
+	CFWordBC *xPtr = (CFWordBC *)Tcl_GetHashValue(hPtr);
 
-	    /*
-	     * Iterate in reverse order, to properly match our pop to the push
-	     * in TclArgumentBCEnter().
-	     */
-	    for (word = objc-1; word >= 1; word--) {
-		if (ePtr->line[word] >= 0) {
-		    Tcl_HashEntry* hPtr = Tcl_FindHashEntry(iPtr->lineLABCPtr,
-						    (char *) objv[word]);
-		    if (hPtr) {
-			CFWordBC* cfwPtr = (CFWordBC*) Tcl_GetHashValue (hPtr);
-
-			if (cfwPtr->prevPtr) {
-			    Tcl_SetHashValue(hPtr, cfwPtr->prevPtr);
-			} else {
-			    Tcl_DeleteHashEntry(hPtr);
-			}
+	if (xPtr != cfwPtr) {
+	    Tcl_Panic("TclArgumentBC Enter/Release Mismatch");
+	}
 
-			ckfree((char *) cfwPtr);
-		    }
-		}
-	    }
+	if (cfwPtr->prevPtr) {
+	    Tcl_SetHashValue(hPtr, cfwPtr->prevPtr);
+	} else {
+	    Tcl_DeleteHashEntry(hPtr);
 	}
+
+	Tcl_Free(cfwPtr);
+	cfwPtr = nextPtr;
     }
+
+    cfPtr->litarg = NULL;
 }
 
 /*
@@ -4965,8 +5987,8 @@ TclArgumentBCRelease(interp,objv,objc,codePtr,pc)
  *
  * TclArgumentGet --
  *
- *	This procedure is a helper for the TIP #280 uplevel extension.
- *	It find the location references for a Tcl_Obj, if any.
+ *	This procedure is a helper for the TIP #280 uplevel extension. It
+ *	finds the location references for a Tcl_Obj, if any.
  *
  * Results:
  *	None.
@@ -4979,15 +6001,15 @@ TclArgumentBCRelease(interp,objv,objc,codePtr,pc)
  */
 
 void
-TclArgumentGet(interp,obj,cfPtrPtr,wordPtr)
-     Tcl_Interp* interp;
-     Tcl_Obj*    obj;
-     CmdFrame**  cfPtrPtr;
-     int*        wordPtr;
+TclArgumentGet(
+    Tcl_Interp *interp,
+    Tcl_Obj *obj,
+    CmdFrame **cfPtrPtr,
+    int *wordPtr)
 {
-    Interp*        iPtr = (Interp*) interp;
-    Tcl_HashEntry* hPtr;
-    CmdFrame*      framePtr;
+    Interp *iPtr = (Interp *) interp;
+    Tcl_HashEntry *hPtr;
+    CmdFrame *framePtr;
 
     /*
      * An object which either has no string rep or else is a canonical list is
@@ -4996,7 +6018,7 @@ TclArgumentGet(interp,obj,cfPtrPtr,wordPtr)
      * up by the caller. It knows better than us.
      */
 
-    if ((obj->bytes == NULL) || TclListObjIsCanonical(obj)) {
+    if (!TclHasStringRep(obj) || TclListObjIsCanonical(obj)) {
 	return;
     }
 
@@ -5005,10 +6027,11 @@ TclArgumentGet(interp,obj,cfPtrPtr,wordPtr)
      * stack. That is nearest.
      */
 
-    hPtr = Tcl_FindHashEntry (iPtr->lineLAPtr, (char *) obj);
+    hPtr = Tcl_FindHashEntry(iPtr->lineLAPtr, obj);
     if (hPtr) {
-	CFWord* cfwPtr = (CFWord*) Tcl_GetHashValue (hPtr);
-	*wordPtr  = cfwPtr->word;
+	CFWord *cfwPtr = (CFWord *)Tcl_GetHashValue(hPtr);
+
+	*wordPtr = cfwPtr->word;
 	*cfPtrPtr = cfwPtr->framePtr;
 	return;
     }
@@ -5018,16 +6041,15 @@ TclArgumentGet(interp,obj,cfPtrPtr,wordPtr)
      * that stack.
      */
 
-    hPtr = Tcl_FindHashEntry (iPtr->lineLABCPtr, (char *) obj);
-
+    hPtr = Tcl_FindHashEntry(iPtr->lineLABCPtr, obj);
     if (hPtr) {
-	CFWordBC* cfwPtr = (CFWordBC*) Tcl_GetHashValue (hPtr);
+	CFWordBC *cfwPtr = (CFWordBC *)Tcl_GetHashValue(hPtr);
 
 	framePtr = cfwPtr->framePtr;
-	framePtr->data.tebc.pc = (char *) (((ByteCode*)
+	framePtr->data.tebc.pc = (char *) (((ByteCode *)
 		framePtr->data.tebc.codePtr)->codeStart + cfwPtr->pc);
 	*cfPtrPtr = cfwPtr->framePtr;
-	*wordPtr  = cfwPtr->word;
+	*wordPtr = cfwPtr->word;
 	return;
     }
 }
@@ -5035,87 +6057,17 @@ TclArgumentGet(interp,obj,cfPtrPtr,wordPtr)
 /*
  *----------------------------------------------------------------------
  *
- * Tcl_Eval --
- *
- *	Execute a Tcl command in a string. This function executes the script
- *	directly, rather than compiling it to bytecodes. Before the arrival of
- *	the bytecode compiler in Tcl 8.0 Tcl_Eval was the main function used
- *	for executing Tcl commands, but nowadays it isn't used much.
- *
- * Results:
- *	The return value is one of the return codes defined in tcl.h (such as
- *	TCL_OK), and interp's result contains a value to supplement the return
- *	code. The value of the result will persist only until the next call to
- *	Tcl_Eval or Tcl_EvalObj: you must copy it or lose it!
- *
- * Side effects:
- *	Can be almost arbitrary, depending on the commands in the script.
- *
- *----------------------------------------------------------------------
- */
-
-int
-Tcl_Eval(
-    Tcl_Interp *interp,		/* Token for command interpreter (returned by
-				 * previous call to Tcl_CreateInterp). */
-    const char *script)		/* Pointer to TCL command to execute. */
-{
-    int code = Tcl_EvalEx(interp, script, -1, 0);
-
-    /*
-     * For backwards compatibility with old C code that predates the object
-     * system in Tcl 8.0, we have to mirror the object result back into the
-     * string result (some callers may expect it there).
-     */
-
-    (void) Tcl_GetStringResult(interp);
-    return code;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * Tcl_EvalObj, Tcl_GlobalEvalObj --
- *
- *	These functions are deprecated but we keep them around for backwards
- *	compatibility reasons.
- *
- * Results:
- *	See the functions they call.
- *
- * Side effects:
- *	See the functions they call.
- *
- *----------------------------------------------------------------------
- */
-
-#undef Tcl_EvalObj
-int
-Tcl_EvalObj(
-    Tcl_Interp *interp,
-    Tcl_Obj *objPtr)
-{
-    return Tcl_EvalObjEx(interp, objPtr, 0);
-}
-
-#undef Tcl_GlobalEvalObj
-int
-Tcl_GlobalEvalObj(
-    Tcl_Interp *interp,
-    Tcl_Obj *objPtr)
-{
-    return Tcl_EvalObjEx(interp, objPtr, TCL_EVAL_GLOBAL);
-}
-
-/*
- *----------------------------------------------------------------------
- *
  * Tcl_EvalObjEx, TclEvalObjEx --
  *
  *	Execute Tcl commands stored in a Tcl object. These commands are
  *	compiled into bytecodes if necessary, unless TCL_EVAL_DIRECT is
  *	specified.
  *
+ *	If the flag TCL_EVAL_DIRECT is passed in, the value of invoker
+ *	must be NULL.  Support for non-NULL invokers in that mode has
+ *	been removed since it was unused and untested.  Failure to
+ *	follow this limitation will lead to an assertion panic.
+ *
  * Results:
  *	The return value is one of the return codes defined in tcl.h (such as
  *	TCL_OK), and the interpreter's result contains a value to supplement
@@ -5134,7 +6086,7 @@ int
 Tcl_EvalObjEx(
     Tcl_Interp *interp,		/* Token for command interpreter (returned by
 				 * a previous call to Tcl_CreateInterp). */
-    register Tcl_Obj *objPtr,	/* Pointer to object containing commands to
+    Tcl_Obj *objPtr,		/* Pointer to object containing commands to
 				 * execute. */
     int flags)			/* Collection of OR-ed bits that control the
 				 * evaluation of the script. Supported values
@@ -5147,7 +6099,7 @@ int
 TclEvalObjEx(
     Tcl_Interp *interp,		/* Token for command interpreter (returned by
 				 * a previous call to Tcl_CreateInterp). */
-    register Tcl_Obj *objPtr,	/* Pointer to object containing commands to
+    Tcl_Obj *objPtr,		/* Pointer to object containing commands to
 				 * execute. */
     int flags,			/* Collection of OR-ed bits that control the
 				 * evaluation of the script. Supported values
@@ -5155,89 +6107,148 @@ TclEvalObjEx(
     const CmdFrame *invoker,	/* Frame of the command doing the eval. */
     int word)			/* Index of the word which is in objPtr. */
 {
-    register Interp *iPtr = (Interp *) interp;
-    char *script;
-    int numSrcBytes;
-    int result;
-    CallFrame *savedVarFramePtr;/* Saves old copy of iPtr->varFramePtr in case
-				 * TCL_EVAL_GLOBAL was set. */
+    int result = TCL_OK;
+    NRE_callback *rootPtr = TOP_CB(interp);
 
-    Tcl_IncrRefCount(objPtr);
+    result = TclNREvalObjEx(interp, objPtr, flags, invoker, word);
+    return TclNRRunCallbacks(interp, result, rootPtr);
+}
 
-    /* Pure List Optimization (no string representation). In this case, we can
-     * safely use Tcl_EvalObjv instead and get an appreciable improvement in
-     * execution speed. This is because it allows us to avoid a setFromAny
-     * step that would just pack everything into a string and back out again.
-     *
-     * This also preserves any associations between list elements and location
-     * information for such elements.
-     *
-     * This restriction has been relaxed a bit by storing in lists whether
-     * they are "canonical" or not (a canonical list being one that is either
-     * pure or that has its string rep derived by UpdateStringOfList from the
-     * internal rep).
+int
+TclNREvalObjEx(
+    Tcl_Interp *interp,		/* Token for command interpreter (returned by
+				 * a previous call to Tcl_CreateInterp). */
+    Tcl_Obj *objPtr,		/* Pointer to object containing commands to
+				 * execute. */
+    int flags,			/* Collection of OR-ed bits that control the
+				 * evaluation of the script. Supported values
+				 * are TCL_EVAL_GLOBAL and TCL_EVAL_DIRECT. */
+    const CmdFrame *invoker,	/* Frame of the command doing the eval. */
+    int word)			/* Index of the word which is in objPtr. */
+{
+    Interp *iPtr = (Interp *) interp;
+    int result;
+
+    /*
+     * This function consists of three independent blocks for: direct
+     * evaluation of canonical lists, compilation and bytecode execution and
+     * finally direct evaluation. Precisely one of these blocks will be run.
      */
 
     if (TclListObjIsCanonical(objPtr)) {
+	CmdFrame *eoFramePtr = NULL;
+	Tcl_Size objc;
+	Tcl_Obj *listPtr, **objv;
+
 	/*
-	 * TIP #280 Structures for tracking lines. As we know that this is
-	 * dynamic execution we ignore the invoker, even if known.
+	 * Canonical List Optimization:  In this case, we
+	 * can safely use Tcl_EvalObjv instead and get an appreciable
+	 * improvement in execution speed. This is because it allows us to
+	 * avoid a setFromAny step that would just pack everything into a
+	 * string and back out again.
+	 *
+	 * This also preserves any associations between list elements and
+	 * location information for such elements.
 	 */
 
-	int nelements;
-	Tcl_Obj **elements, *copyPtr = TclListObjCopy(NULL, objPtr);
-	CmdFrame *eoFramePtr = (CmdFrame *)
-		TclStackAlloc(interp, sizeof(CmdFrame));
+	/*
+	 * Shimmer protection! Always pass an unshared obj. The caller could
+	 * incr the refCount of objPtr AFTER calling us! To be completely safe
+	 * we always make a copy. The callback takes care of the refCounts for
+	 * both listPtr and objPtr.
+	 *
+	 * TODO: Create a test to demo this need, or eliminate it.
+	 * FIXME OPT: preserve just the internal rep?
+	 */
 
-	eoFramePtr->type = TCL_LOCATION_EVAL_LIST;
-	eoFramePtr->level = (iPtr->cmdFramePtr == NULL?  1
-		: iPtr->cmdFramePtr->level + 1);
-	eoFramePtr->framePtr = iPtr->framePtr;
-	eoFramePtr->nextPtr = iPtr->cmdFramePtr;
+	Tcl_IncrRefCount(objPtr);
+	listPtr = TclListObjCopy(interp, objPtr);
+	Tcl_IncrRefCount(listPtr);
 
-	eoFramePtr->nline = 0;
-	eoFramePtr->line = NULL;
+	if (word != INT_MIN) {
+	    /*
+	     * TIP #280 Structures for tracking lines. As we know that this is
+	     * dynamic execution we ignore the invoker, even if known.
+	     *
+	     * TIP #280. We do _not_ compute all the line numbers for the
+	     * words in the command. For the eval of a pure list the most
+	     * sensible choice is to put all words on line 1. Given that we
+	     * neither need memory for them nor compute anything. 'line' is
+	     * left NULL. The two places using this information (TclInfoFrame,
+	     * and TclInitCompileEnv), are special-cased to use the proper
+	     * line number directly instead of accessing the 'line' array.
+	     *
+	     * Note that we use (word==INTMIN) to signal that no command frame
+	     * should be pushed, as needed by alias and ensemble redirections.
+	     */
 
-	eoFramePtr->cmd.listPtr  = objPtr;
-	Tcl_IncrRefCount(eoFramePtr->cmd.listPtr);
-	eoFramePtr->data.eval.path = NULL;
+	    eoFramePtr = (CmdFrame *)TclStackAlloc(interp, sizeof(CmdFrame));
+	    eoFramePtr->nline = 0;
+	    eoFramePtr->line = NULL;
 
-	/*
-	 * TIP #280 We do _not_ compute all the line numbers for the words
-	 * in the command. For the eval of a pure list the most sensible
-	 * choice is to put all words on line 1. Given that we neither
-	 * need memory for them nor compute anything.  'line' is left
-	 * NULL. The two places using this information (TclInfoFrame, and
-	 * TclInitCompileEnv), are special-cased to use the proper line
-	 * number directly instead of accessing the 'line' array.
-	 */
+	    eoFramePtr->type = TCL_LOCATION_EVAL;
+	    eoFramePtr->level = (iPtr->cmdFramePtr == NULL?
+		    1 : iPtr->cmdFramePtr->level + 1);
+	    eoFramePtr->framePtr = iPtr->framePtr;
+	    eoFramePtr->nextPtr = iPtr->cmdFramePtr;
 
-	Tcl_ListObjGetElements(NULL, copyPtr, &nelements, &elements);
+	    eoFramePtr->cmdObj = objPtr;
+	    eoFramePtr->cmd = NULL;
+	    eoFramePtr->len = 0;
+	    eoFramePtr->data.eval.path = NULL;
 
-	iPtr->cmdFramePtr = eoFramePtr;
-	result = Tcl_EvalObjv(interp, nelements, elements, flags);
+	    iPtr->cmdFramePtr = eoFramePtr;
 
-	Tcl_DecrRefCount(copyPtr);
-	iPtr->cmdFramePtr = iPtr->cmdFramePtr->nextPtr;
-	Tcl_DecrRefCount(eoFramePtr->cmd.listPtr);
-	TclStackFree(interp, eoFramePtr);
-    } else if (flags & TCL_EVAL_DIRECT) {
+	    flags |= TCL_EVAL_SOURCE_IN_FRAME;
+	}
+
+	TclMarkTailcall(interp);
+	TclNRAddCallback(interp, TEOEx_ListCallback, listPtr, eoFramePtr,
+		objPtr, NULL);
+
+	TclListObjGetElements(NULL, listPtr, &objc, &objv);
+	return TclNREvalObjv(interp, objc, objv, flags, NULL);
+    }
+
+    if (!(flags & TCL_EVAL_DIRECT)) {
 	/*
-	 * We're not supposed to use the compiler or byte-code interpreter.
-	 * Let Tcl_EvalEx evaluate the command directly (and probably more
-	 * slowly).
+	 * Let the compiler/engine subsystem do the evaluation.
+	 *
+	 * TIP #280 The invoker provides us with the context for the script.
+	 * We transfer this to the byte code compiler.
 	 */
 
+	int allowExceptions = (iPtr->evalFlags & TCL_ALLOW_EXCEPTIONS);
+	ByteCode *codePtr;
+	CallFrame *savedVarFramePtr = NULL;	/* Saves old copy of
+						 * iPtr->varFramePtr in case
+						 * TCL_EVAL_GLOBAL was set. */
+
+	if (TclInterpReady(interp) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+	if (flags & TCL_EVAL_GLOBAL) {
+	    savedVarFramePtr = iPtr->varFramePtr;
+	    iPtr->varFramePtr = iPtr->rootFramePtr;
+	}
+	Tcl_IncrRefCount(objPtr);
+	codePtr = TclCompileObj(interp, objPtr, invoker, word);
+
+	TclNRAddCallback(interp, TEOEx_ByteCodeCallback, savedVarFramePtr,
+		objPtr, INT2PTR(allowExceptions), NULL);
+	return TclNRExecuteByteCode(interp, codePtr);
+    }
+
+    {
 	/*
-	 * TIP #280. Propagate context as much as we can. Especially if the
-	 * script to evaluate is a single literal it makes sense to look if
-	 * our context is one with absolute line numbers we can then track
-	 * into the literal itself too.
-	 *
-	 * See also tclCompile.c, TclInitCompileEnv, for the equivalent code
-	 * in the bytecode compiler.
+	 * We're not supposed to use the compiler or byte-code
+	 * interpreter. Let Tcl_EvalEx evaluate the command directly (and
+	 * probably more slowly).
 	 */
 
+	const char *script;
+	Tcl_Size numSrcBytes;
+
 	/*
 	 * Now we check if we have data about invisible continuation lines for
 	 * the script, and make it available to the direct script parser and
@@ -5247,7 +6258,7 @@ TclEvalObjEx(
 	 * evaluator is using it, leading to the release of the associated
 	 * ContLineLoc structure as well. To ensure that the latter doesn't
 	 * happen we set a lock on it. We release this lock later in this
-	 * function, after the evaluator is done.  The relevant "lineCLPtr"
+	 * function, after the evaluator is done. The relevant "lineCLPtr"
 	 * hashtable is managed in the file "tclObj.c".
 	 *
 	 * Another important action is to save (and later restore) the
@@ -5255,135 +6266,94 @@ TclEvalObjEx(
 	 * executing nested commands in the eval/direct path.
 	 */
 
-	ContLineLoc* saveCLLocPtr = iPtr->scriptCLLocPtr;
-	ContLineLoc* clLocPtr = TclContinuationsGet (objPtr);
-
-	if (clLocPtr) {
-	    iPtr->scriptCLLocPtr = clLocPtr;
-	    Tcl_Preserve (iPtr->scriptCLLocPtr);
-	} else {
-	    iPtr->scriptCLLocPtr = NULL;
-	}
-
-	if (invoker == NULL) {
-	    /*
-	     * No context, force opening of our own.
-	     */
-
-	    script = Tcl_GetStringFromObj(objPtr, &numSrcBytes);
-	    result = Tcl_EvalEx(interp, script, numSrcBytes, flags);
-	} else {
-	    /*
-	     * We have an invoker, describing the command asking for the
-	     * evaluation of a subordinate script. This script may originate
-	     * in a literal word, or from a variable, etc. Using the line
-	     * array we now check if we have good line information for the
-	     * relevant word. The type of context is relevant as well. In a
-	     * non-'source' context we don't have to try tracking lines.
-	     *
-	     * First see if the word exists and is a literal. If not we go
-	     * through the easy dynamic branch. No need to perform more
-	     * complex invokations.
-	     */
+	ContLineLoc *saveCLLocPtr = iPtr->scriptCLLocPtr;
 
-	    int pc = 0;
-	    CmdFrame *ctxPtr = (CmdFrame *)
-		TclStackAlloc(interp, sizeof(CmdFrame));
-
-	    *ctxPtr = *invoker;
-	    if (invoker->type == TCL_LOCATION_BC) {
-		/*
-		 * Note: Type BC => ctxPtr->data.eval.path is not used.
-		 * ctxPtr->data.tebc.codePtr is used instead.
-		 */
-
-		TclGetSrcInfoForPc(ctxPtr);
-		pc = 1;
-	    }
+	assert(invoker == NULL);
 
-	    script = Tcl_GetStringFromObj(objPtr, &numSrcBytes);
+	iPtr->scriptCLLocPtr = TclContinuationsGet(objPtr);
 
-	    if ((ctxPtr->nline <= word) ||
-		(ctxPtr->line[word] < 0) ||
-		(ctxPtr->type != TCL_LOCATION_SOURCE)) {
-		/*
-		 * Dynamic script, or dynamic context, force our own
-		 * context.
-		 */
-
-		result = Tcl_EvalEx(interp, script, numSrcBytes, flags);
+	Tcl_IncrRefCount(objPtr);
 
-	    } else {
-		/*
-		 * Absolute context to reuse.
-		 */
+	script = TclGetStringFromObj(objPtr, &numSrcBytes);
+	result = Tcl_EvalEx(interp, script, numSrcBytes, flags);
 
-		iPtr->invokeCmdFramePtr = ctxPtr;
-		iPtr->evalFlags |= TCL_EVAL_CTX;
+	TclDecrRefCount(objPtr);
 
-		result = TclEvalEx(interp, script, numSrcBytes, flags,
-				   ctxPtr->line[word], NULL, script);
-	    }
+	iPtr->scriptCLLocPtr = saveCLLocPtr;
+	return result;
+    }
+}
 
-	    if (pc && (ctxPtr->type == TCL_LOCATION_SOURCE)) {
-		/*
-		 * Death of SrcInfo reference.
-		 */
+static int
+TEOEx_ByteCodeCallback(
+    void *data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    Interp *iPtr = (Interp *) interp;
+    CallFrame *savedVarFramePtr = (CallFrame *)data[0];
+    Tcl_Obj *objPtr = (Tcl_Obj *)data[1];
+    int allowExceptions = (int)PTR2INT(data[2]);
 
-		Tcl_DecrRefCount(ctxPtr->data.eval.path);
-	    }
-	    TclStackFree(interp, ctxPtr);
+    if (iPtr->numLevels == 0) {
+	if (result == TCL_RETURN) {
+	    result = TclUpdateReturnInfo(iPtr);
 	}
-
-	/*
-	 * Now release the lock on the continuation line information, if
-	 * any, and restore the caller's settings.
-	 */
-
-	if (iPtr->scriptCLLocPtr) {
-	    Tcl_Release (iPtr->scriptCLLocPtr);
+	if ((result != TCL_OK) && (result != TCL_ERROR) && !allowExceptions) {
+	    const char *script;
+	    Tcl_Size numSrcBytes;
+
+	    ProcessUnexpectedResult(interp, result);
+	    result = TCL_ERROR;
+	    script = TclGetStringFromObj(objPtr, &numSrcBytes);
+	    Tcl_LogCommandInfo(interp, script, script, numSrcBytes);
 	}
-	iPtr->scriptCLLocPtr = saveCLLocPtr;
-    } else {
+
 	/*
-	 * Let the compiler/engine subsystem do the evaluation.
-	 *
-	 * TIP #280 The invoker provides us with the context for the script.
-	 * We transfer this to the byte code compiler.
+	 * We are returning to level 0, so should call TclResetCancellation.
+	 * Let us just unset the flags inline.
 	 */
-	int allowExceptions = (iPtr->evalFlags & TCL_ALLOW_EXCEPTIONS);
-
-	savedVarFramePtr = iPtr->varFramePtr;
-	if (flags & TCL_EVAL_GLOBAL) {
-	    iPtr->varFramePtr = iPtr->rootFramePtr;
-	}
 
-	result = TclCompEvalObj(interp, objPtr, invoker, word);
+	TclUnsetCancelFlags(iPtr);
+    }
+    iPtr->evalFlags = 0;
 
-	/*
-	 * If we are again at the top level, process any unusual return code
-	 * returned by the evaluated code.
-	 */
+    /*
+     * Restore the callFrame if this was a TCL_EVAL_GLOBAL.
+     */
 
-	if (iPtr->numLevels == 0) {
-	    if (result == TCL_RETURN) {
-		result = TclUpdateReturnInfo(iPtr);
-	    }
-	    if ((result != TCL_OK) && (result != TCL_ERROR)
-		    && !allowExceptions) {
-		ProcessUnexpectedResult(interp, result);
-		result = TCL_ERROR;
-		script = Tcl_GetStringFromObj(objPtr, &numSrcBytes);
-		Tcl_LogCommandInfo(interp, script, script, numSrcBytes);
-	    }
-	}
-	iPtr->evalFlags = 0;
+    if (savedVarFramePtr) {
 	iPtr->varFramePtr = savedVarFramePtr;
     }
 
     TclDecrRefCount(objPtr);
     return result;
 }
+
+static int
+TEOEx_ListCallback(
+    void *data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    Interp *iPtr = (Interp *) interp;
+    Tcl_Obj *listPtr = (Tcl_Obj *)data[0];
+    CmdFrame *eoFramePtr = (CmdFrame *)data[1];
+    Tcl_Obj *objPtr = (Tcl_Obj *)data[2];
+
+    /*
+     * Remove the cmdFrame
+     */
+
+    if (eoFramePtr) {
+	iPtr->cmdFramePtr = eoFramePtr->nextPtr;
+	TclStackFree(interp, eoFramePtr);
+    }
+    TclDecrRefCount(objPtr);
+    TclDecrRefCount(listPtr);
+
+    return result;
+}
 
 /*
  *----------------------------------------------------------------------
@@ -5411,17 +6381,21 @@ ProcessUnexpectedResult(
 				 * result code was returned. */
     int returnCode)		/* The unexpected result code. */
 {
+    char buf[TCL_INTEGER_SPACE];
+
     Tcl_ResetResult(interp);
     if (returnCode == TCL_BREAK) {
-	Tcl_AppendResult(interp,
-		"invoked \"break\" outside of a loop", NULL);
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"invoked \"break\" outside of a loop", TCL_INDEX_NONE));
     } else if (returnCode == TCL_CONTINUE) {
-	Tcl_AppendResult(interp,
-		"invoked \"continue\" outside of a loop", NULL);
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"invoked \"continue\" outside of a loop", TCL_INDEX_NONE));
     } else {
 	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
 		"command returned bad code: %d", returnCode));
     }
+    snprintf(buf, sizeof(buf), "%d", returnCode);
+    Tcl_SetErrorCode(interp, "TCL", "UNEXPECTED_RESULT_CODE", buf, (char *)NULL);
 }
 
 /*
@@ -5452,7 +6426,7 @@ Tcl_ExprLong(
     const char *exprstring,	/* Expression to evaluate. */
     long *ptr)			/* Where to store result. */
 {
-    register Tcl_Obj *exprPtr;
+    Tcl_Obj *exprPtr;
     int result = TCL_OK;
     if (*exprstring == '\0') {
 	/*
@@ -5461,13 +6435,10 @@ Tcl_ExprLong(
 
 	*ptr = 0;
     } else {
-	exprPtr = Tcl_NewStringObj(exprstring, -1);
+	exprPtr = Tcl_NewStringObj(exprstring, TCL_INDEX_NONE);
 	Tcl_IncrRefCount(exprPtr);
 	result = Tcl_ExprLongObj(interp, exprPtr, ptr);
 	Tcl_DecrRefCount(exprPtr);
-	if (result != TCL_OK) {
-	    (void) Tcl_GetStringResult(interp);
-	}
     }
     return result;
 }
@@ -5479,7 +6450,7 @@ Tcl_ExprDouble(
     const char *exprstring,	/* Expression to evaluate. */
     double *ptr)		/* Where to store result. */
 {
-    register Tcl_Obj *exprPtr;
+    Tcl_Obj *exprPtr;
     int result = TCL_OK;
 
     if (*exprstring == '\0') {
@@ -5489,14 +6460,11 @@ Tcl_ExprDouble(
 
 	*ptr = 0.0;
     } else {
-	exprPtr = Tcl_NewStringObj(exprstring, -1);
+	exprPtr = Tcl_NewStringObj(exprstring, TCL_INDEX_NONE);
 	Tcl_IncrRefCount(exprPtr);
 	result = Tcl_ExprDoubleObj(interp, exprPtr, ptr);
 	Tcl_DecrRefCount(exprPtr);
 				/* Discard the expression object. */
-	if (result != TCL_OK) {
-	    (void) Tcl_GetStringResult(interp);
-	}
     }
     return result;
 }
@@ -5517,19 +6485,11 @@ Tcl_ExprBoolean(
 	return TCL_OK;
     } else {
 	int result;
-	Tcl_Obj *exprPtr = Tcl_NewStringObj(exprstring, -1);
+	Tcl_Obj *exprPtr = Tcl_NewStringObj(exprstring, TCL_INDEX_NONE);
 
 	Tcl_IncrRefCount(exprPtr);
 	result = Tcl_ExprBooleanObj(interp, exprPtr, ptr);
 	Tcl_DecrRefCount(exprPtr);
-	if (result != TCL_OK) {
-	    /*
-	     * Move the interpreter's object result to the string result, then
-	     * reset the object result.
-	     */
-
-	    (void) Tcl_GetStringResult(interp);
-	}
 	return result;
     }
 }
@@ -5559,20 +6519,20 @@ int
 Tcl_ExprLongObj(
     Tcl_Interp *interp,		/* Context in which to evaluate the
 				 * expression. */
-    register Tcl_Obj *objPtr,	/* Expression to evaluate. */
+    Tcl_Obj *objPtr,		/* Expression to evaluate. */
     long *ptr)			/* Where to store long result. */
 {
     Tcl_Obj *resultPtr;
     int result, type;
     double d;
-    ClientData internalPtr;
+    void *internalPtr;
 
     result = Tcl_ExprObj(interp, objPtr, &resultPtr);
     if (result != TCL_OK) {
 	return TCL_ERROR;
     }
 
-    if (TclGetNumberFromObj(interp, resultPtr, &internalPtr, &type) != TCL_OK){
+    if (Tcl_GetNumberFromObj(interp, resultPtr, &internalPtr, &type) != TCL_OK) {
 	return TCL_ERROR;
     }
 
@@ -5588,8 +6548,7 @@ Tcl_ExprLongObj(
 	resultPtr = Tcl_NewBignumObj(&big);
     }
     /* FALLTHRU */
-    case TCL_NUMBER_LONG:
-    case TCL_NUMBER_WIDE:
+    case TCL_NUMBER_INT:
     case TCL_NUMBER_BIG:
 	result = TclGetLongFromObj(interp, resultPtr, ptr);
 	break;
@@ -5607,19 +6566,19 @@ int
 Tcl_ExprDoubleObj(
     Tcl_Interp *interp,		/* Context in which to evaluate the
 				 * expression. */
-    register Tcl_Obj *objPtr,	/* Expression to evaluate. */
+    Tcl_Obj *objPtr,		/* Expression to evaluate. */
     double *ptr)		/* Where to store double result. */
 {
     Tcl_Obj *resultPtr;
     int result, type;
-    ClientData internalPtr;
+    void *internalPtr;
 
     result = Tcl_ExprObj(interp, objPtr, &resultPtr);
     if (result != TCL_OK) {
 	return TCL_ERROR;
     }
 
-    result = TclGetNumberFromObj(interp, resultPtr, &internalPtr, &type);
+    result = Tcl_GetNumberFromObj(interp, resultPtr, &internalPtr, &type);
     if (result == TCL_OK) {
 	switch (type) {
 	case TCL_NUMBER_NAN:
@@ -5643,7 +6602,7 @@ int
 Tcl_ExprBooleanObj(
     Tcl_Interp *interp,		/* Context in which to evaluate the
 				 * expression. */
-    register Tcl_Obj *objPtr,	/* Expression to evaluate. */
+    Tcl_Obj *objPtr,		/* Expression to evaluate. */
     int *ptr)			/* Where to store 0/1 result. */
 {
     Tcl_Obj *resultPtr;
@@ -5665,6 +6624,7 @@ Tcl_ExprBooleanObj(
  *
  *	Object version: Invokes a Tcl command, given an objv/objc, from either
  *	the exposed or hidden set of commands in the given interpreter.
+ *
  *	NOTE: The command is invoked in the global stack frame of the
  *	interpreter or namespace, thus it cannot see any current state on the
  *	stack of that interpreter.
@@ -5682,7 +6642,7 @@ int
 TclObjInvokeNamespace(
     Tcl_Interp *interp,		/* Interpreter in which command is to be
 				 * invoked. */
-    int objc,			/* Count of arguments. */
+    Tcl_Size objc,		/* Count of arguments. */
     Tcl_Obj *const objv[],	/* Argument objects; objv[0] points to the
 				 * name of the command to invoke. */
     Tcl_Namespace *nsPtr,	/* The namespace to use. */
@@ -5698,11 +6658,7 @@ TclObjInvokeNamespace(
      * command.
      */
 
-    result = TclPushStackFrame(interp, &framePtr, nsPtr, /*isProcFrame*/0);
-    if (result != TCL_OK) {
-	return TCL_ERROR;
-    }
-
+    (void) TclPushStackFrame(interp, &framePtr, nsPtr, /*isProcFrame*/0);
     result = TclObjInvoke(interp, objc, objv, flags);
 
     TclPopStackFrame(interp);
@@ -5730,36 +6686,39 @@ int
 TclObjInvoke(
     Tcl_Interp *interp,		/* Interpreter in which command is to be
 				 * invoked. */
-    int objc,			/* Count of arguments. */
+    Tcl_Size objc,		/* Count of arguments. */
     Tcl_Obj *const objv[],	/* Argument objects; objv[0] points to the
 				 * name of the command to invoke. */
     int flags)			/* Combination of flags controlling the call:
 				 * TCL_INVOKE_HIDDEN, TCL_INVOKE_NO_UNKNOWN,
 				 * or TCL_INVOKE_NO_TRACEBACK. */
 {
-    register Interp *iPtr = (Interp *) interp;
-    Tcl_HashTable *hTblPtr;	/* Table of hidden commands. */
-    char *cmdName;		/* Name of the command from objv[0]. */
-    Tcl_HashEntry *hPtr = NULL;
-    Command *cmdPtr;
-    int result;
-
     if (interp == NULL) {
 	return TCL_ERROR;
     }
-
     if ((objc < 1) || (objv == NULL)) {
-	Tcl_AppendResult(interp, "illegal argument vector", NULL);
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"illegal argument vector", TCL_INDEX_NONE));
 	return TCL_ERROR;
     }
-
     if ((flags & TCL_INVOKE_HIDDEN) == 0) {
 	Tcl_Panic("TclObjInvoke: called without TCL_INVOKE_HIDDEN");
     }
+    return Tcl_NRCallObjProc(interp, TclNRInvoke, NULL, objc, objv);
+}
 
-    if (TclInterpReady(interp) == TCL_ERROR) {
-	return TCL_ERROR;
-    }
+int
+TclNRInvoke(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    Interp *iPtr = (Interp *) interp;
+    Tcl_HashTable *hTblPtr;	/* Table of hidden commands. */
+    const char *cmdName;	/* Name of the command from objv[0]. */
+    Tcl_HashEntry *hPtr = NULL;
+    Command *cmdPtr;
 
     cmdName = TclGetString(objv[0]);
     hTblPtr = iPtr->hiddenCmdTablePtr;
@@ -5767,37 +6726,39 @@ TclObjInvoke(
 	hPtr = Tcl_FindHashEntry(hTblPtr, cmdName);
     }
     if (hPtr == NULL) {
-	Tcl_AppendResult(interp, "invalid hidden command name \"",
-		cmdName, "\"", NULL);
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"invalid hidden command name \"%s\"", cmdName));
+	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "HIDDENTOKEN", cmdName,
+		(char *)NULL);
 	return TCL_ERROR;
     }
-    cmdPtr = Tcl_GetHashValue(hPtr);
+    cmdPtr = (Command *)Tcl_GetHashValue(hPtr);
 
     /*
-     * Invoke the command function.
+     * Avoid the exception-handling brain damage when numLevels == 0
      */
 
-    iPtr->cmdCount++;
-    result = cmdPtr->objProc(cmdPtr->objClientData, interp, objc, objv);
+    iPtr->numLevels++;
+    Tcl_NRAddCallback(interp, NRPostInvoke, NULL, NULL, NULL, NULL);
 
     /*
-     * If an error occurred, record information about what was being executed
-     * when the error occurred.
+     * Normal command resolution of objv[0] isn't going to find cmdPtr.
+     * That's the whole point of **hidden** commands.  So tell the Eval core
+     * machinery not to even try (and risk finding something wrong).
      */
 
-    if ((result == TCL_ERROR)
-	    && ((flags & TCL_INVOKE_NO_TRACEBACK) == 0)
-	    && ((iPtr->flags & ERR_ALREADY_LOGGED) == 0)) {
-	int length;
-	Tcl_Obj *command = Tcl_NewListObj(objc, objv);
-	const char *cmdString;
+    return TclNREvalObjv(interp, objc, objv, TCL_EVAL_NORESOLVE, cmdPtr);
+}
 
-	Tcl_IncrRefCount(command);
-	cmdString = Tcl_GetStringFromObj(command, &length);
-	Tcl_LogCommandInfo(interp, cmdString, cmdString, length);
-	Tcl_DecrRefCount(command);
-	iPtr->flags &= ~ERR_ALREADY_LOGGED;
-    }
+static int
+NRPostInvoke(
+    TCL_UNUSED(void **),
+    Tcl_Interp *interp,
+    int result)
+{
+    Interp *iPtr = (Interp *)interp;
+
+    iPtr->numLevels--;
     return result;
 }
 
@@ -5834,9 +6795,9 @@ Tcl_ExprString(
 	 * An empty string. Just set the interpreter's result to 0.
 	 */
 
-	Tcl_SetResult(interp, "0", TCL_VOLATILE);
+	Tcl_SetObjResult(interp, Tcl_NewWideIntObj(0));
     } else {
-	Tcl_Obj *resultPtr, *exprObj = Tcl_NewStringObj(expr, -1);
+	Tcl_Obj *resultPtr, *exprObj = Tcl_NewStringObj(expr, TCL_INDEX_NONE);
 
 	Tcl_IncrRefCount(exprObj);
 	code = Tcl_ExprObj(interp, exprObj, &resultPtr);
@@ -5845,12 +6806,6 @@ Tcl_ExprString(
 	    Tcl_SetObjResult(interp, resultPtr);
 	    Tcl_DecrRefCount(resultPtr);
 	}
-
-	/*
-	 * Force the string rep of the interp result.
-	 */
-
-	(void) Tcl_GetStringResult(interp);
     }
     return code;
 }
@@ -5880,73 +6835,11 @@ Tcl_AppendObjToErrorInfo(
 				 * pertains. */
     Tcl_Obj *objPtr)		/* Message to record. */
 {
-    int length;
+    Tcl_Size length;
     const char *message = TclGetStringFromObj(objPtr, &length);
+    Interp *iPtr = (Interp *) interp;
 
     Tcl_IncrRefCount(objPtr);
-    Tcl_AddObjErrorInfo(interp, message, length);
-    Tcl_DecrRefCount(objPtr);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * Tcl_AddErrorInfo --
- *
- *	Add information to the errorInfo field that describes the current
- *	error.
- *
- * Results:
- *	None.
- *
- * Side effects:
- *	The contents of message are appended to the errorInfo field. If we are
- *	just starting to log an error, errorInfo is initialized from the error
- *	message in the interpreter's result.
- *
- *----------------------------------------------------------------------
- */
-
-void
-Tcl_AddErrorInfo(
-    Tcl_Interp *interp,		/* Interpreter to which error information
-				 * pertains. */
-    const char *message)	/* Message to record. */
-{
-    Tcl_AddObjErrorInfo(interp, message, -1);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * Tcl_AddObjErrorInfo --
- *
- *	Add information to the errorInfo field that describes the current
- *	error. This routine differs from Tcl_AddErrorInfo by taking a byte
- *	pointer and length.
- *
- * Results:
- *	None.
- *
- * Side effects:
- *	"length" bytes from "message" are appended to the errorInfo field. If
- *	"length" is negative, use bytes up to the first NULL byte. If we are
- *	just starting to log an error, errorInfo is initialized from the error
- *	message in the interpreter's result.
- *
- *----------------------------------------------------------------------
- */
-
-void
-Tcl_AddObjErrorInfo(
-    Tcl_Interp *interp,		/* Interpreter to which error information
-				 * pertains. */
-    const char *message,	/* Points to the first byte of an array of
-				 * bytes of the message. */
-    int length)			/* The number of bytes in the message. If < 0,
-				 * then append all bytes up to a NULL byte. */
-{
-    register Interp *iPtr = (Interp *) interp;
 
     /*
      * If we are just starting to log an error, errorInfo is initialized from
@@ -5955,22 +6848,10 @@ Tcl_AddObjErrorInfo(
 
     iPtr->flags |= ERR_LEGACY_COPY;
     if (iPtr->errorInfo == NULL) {
-	if (iPtr->result[0] != 0) {
-	    /*
-	     * The interp's string result is set, apparently by some extension
-	     * making a deprecated direct write to it. That extension may
-	     * expect interp->result to continue to be set, so we'll take
-	     * special pains to avoid clearing it, until we drop support for
-	     * interp->result completely.
-	     */
-
-	    iPtr->errorInfo = Tcl_NewStringObj(interp->result, -1);
-	} else {
-	    iPtr->errorInfo = iPtr->objResultPtr;
-	}
+	iPtr->errorInfo = iPtr->objResultPtr;
 	Tcl_IncrRefCount(iPtr->errorInfo);
 	if (!iPtr->errorCode) {
-	    Tcl_SetErrorCode(interp, "NONE", NULL);
+	    Tcl_SetErrorCode(interp, "NONE", (char *)NULL);
 	}
     }
 
@@ -5986,39 +6867,42 @@ Tcl_AddObjErrorInfo(
 	}
 	Tcl_AppendToObj(iPtr->errorInfo, message, length);
     }
+    Tcl_DecrRefCount(objPtr);
 }
 
 /*
- *---------------------------------------------------------------------------
+ *----------------------------------------------------------------------
  *
- * Tcl_VarEvalVA --
+ * Tcl_VarEval --
  *
  *	Given a variable number of string arguments, concatenate them all
  *	together and execute the result as a Tcl command.
  *
  * Results:
  *	A standard Tcl return result. An error message or other result may be
- *	left in the interp's result.
+ *	left in the interp.
  *
  * Side effects:
  *	Depends on what was done by the command.
  *
- *---------------------------------------------------------------------------
+ *----------------------------------------------------------------------
  */
 
 int
-Tcl_VarEvalVA(
-    Tcl_Interp *interp,		/* Interpreter in which to evaluate command. */
-    va_list argList)		/* Variable argument list. */
+Tcl_VarEval(
+    Tcl_Interp *interp,
+    ...)
 {
+    va_list argList;
+    int result;
     Tcl_DString buf;
     char *string;
-    int result;
 
+    va_start(argList, interp);
     /*
      * Copy the strings one after the other into a single larger string. Use
      * stack-allocated space for small commands, but if the command gets too
-     * large than call ckalloc to create the space.
+     * large than call Tcl_Alloc to create the space.
      */
 
     Tcl_DStringInit(&buf);
@@ -6027,10 +6911,10 @@ Tcl_VarEvalVA(
 	if (string == NULL) {
 	    break;
 	}
-	Tcl_DStringAppend(&buf, string, -1);
+	Tcl_DStringAppend(&buf, string, TCL_INDEX_NONE);
     }
 
-    result = Tcl_Eval(interp, Tcl_DStringValue(&buf));
+    result = Tcl_EvalEx(interp, Tcl_DStringValue(&buf), TCL_INDEX_NONE, 0);
     Tcl_DStringFree(&buf);
     return result;
 }
@@ -6038,74 +6922,6 @@ Tcl_VarEvalVA(
 /*
  *----------------------------------------------------------------------
  *
- * Tcl_VarEval --
- *
- *	Given a variable number of string arguments, concatenate them all
- *	together and execute the result as a Tcl command.
- *
- * Results:
- *	A standard Tcl return result. An error message or other result may be
- *	left in interp->result.
- *
- * Side effects:
- *	Depends on what was done by the command.
- *
- *----------------------------------------------------------------------
- */
-	/* ARGSUSED */
-int
-Tcl_VarEval(
-    Tcl_Interp *interp,
-    ...)
-{
-    va_list argList;
-    int result;
-
-    va_start(argList, interp);
-    result = Tcl_VarEvalVA(interp, argList);
-    va_end(argList);
-
-    return result;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * Tcl_GlobalEval --
- *
- *	Evaluate a command at global level in an interpreter.
- *
- * Results:
- *	A standard Tcl result is returned, and the interp's result is modified
- *	accordingly.
- *
- * Side effects:
- *	The command string is executed in interp, and the execution is carried
- *	out in the variable context of global level (no functions active),
- *	just as if an "uplevel #0" command were being executed.
- *
- *----------------------------------------------------------------------
- */
-
-int
-Tcl_GlobalEval(
-    Tcl_Interp *interp,		/* Interpreter in which to evaluate command. */
-    const char *command)	/* Command to evaluate. */
-{
-    register Interp *iPtr = (Interp *) interp;
-    int result;
-    CallFrame *savedVarFramePtr;
-
-    savedVarFramePtr = iPtr->varFramePtr;
-    iPtr->varFramePtr = iPtr->rootFramePtr;
-    result = Tcl_Eval(interp, command);
-    iPtr->varFramePtr = savedVarFramePtr;
-    return result;
-}
-
-/*
- *----------------------------------------------------------------------
- *
  * Tcl_SetRecursionLimit --
  *
  *	Set the maximum number of recursive calls that may be active for an
@@ -6120,14 +6936,14 @@ Tcl_GlobalEval(
  *----------------------------------------------------------------------
  */
 
-int
+Tcl_Size
 Tcl_SetRecursionLimit(
     Tcl_Interp *interp,		/* Interpreter whose nesting limit is to be
 				 * set. */
-    int depth)			/* New value for maximimum depth. */
+    Tcl_Size depth)		/* New value for maximum depth. */
 {
     Interp *iPtr = (Interp *) interp;
-    int old;
+    Tcl_Size old;
 
     old = iPtr->maxNestingDepth;
     if (depth > 0) {
@@ -6223,7 +7039,7 @@ Tcl_GetVersion(
 
 static int
 ExprCeilFunc(
-    ClientData clientData,	/* Ignored */
+    TCL_UNUSED(void *),
     Tcl_Interp *interp,		/* The interpreter in which to execute the
 				 * function. */
     int objc,			/* Actual parameter count. */
@@ -6239,14 +7055,19 @@ ExprCeilFunc(
     }
     code = Tcl_GetDoubleFromObj(interp, objv[1], &d);
 #ifdef ACCEPT_NAN
-    if ((code != TCL_OK) && (objv[1]->typePtr == &tclDoubleType)) {
-	Tcl_SetObjResult(interp, objv[1]);
-	return TCL_OK;
+    if (code != TCL_OK) {
+	const Tcl_ObjInternalRep *irPtr = TclFetchInternalRep(objv[1], &tclDoubleType);
+
+	if (irPtr) {
+	    Tcl_SetObjResult(interp, objv[1]);
+	    return TCL_OK;
+	}
     }
 #endif
     if (code != TCL_OK) {
 	return TCL_ERROR;
     }
+
     if (Tcl_GetBignumFromObj(NULL, objv[1], &big) == TCL_OK) {
 	Tcl_SetObjResult(interp, Tcl_NewDoubleObj(TclCeil(&big)));
 	mp_clear(&big);
@@ -6258,7 +7079,7 @@ ExprCeilFunc(
 
 static int
 ExprFloorFunc(
-    ClientData clientData,	/* Ignored */
+    TCL_UNUSED(void *),
     Tcl_Interp *interp,		/* The interpreter in which to execute the
 				 * function. */
     int objc,			/* Actual parameter count. */
@@ -6274,14 +7095,19 @@ ExprFloorFunc(
     }
     code = Tcl_GetDoubleFromObj(interp, objv[1], &d);
 #ifdef ACCEPT_NAN
-    if ((code != TCL_OK) && (objv[1]->typePtr == &tclDoubleType)) {
-	Tcl_SetObjResult(interp, objv[1]);
-	return TCL_OK;
+    if (code != TCL_OK) {
+	const Tcl_ObjInternalRep *irPtr = TclFetchInternalRep(objv[1], &tclDoubleType);
+
+	if (irPtr) {
+	    Tcl_SetObjResult(interp, objv[1]);
+	    return TCL_OK;
+	}
     }
 #endif
     if (code != TCL_OK) {
 	return TCL_ERROR;
     }
+
     if (Tcl_GetBignumFromObj(NULL, objv[1], &big) == TCL_OK) {
 	Tcl_SetObjResult(interp, Tcl_NewDoubleObj(TclFloor(&big)));
 	mp_clear(&big);
@@ -6293,19 +7119,18 @@ ExprFloorFunc(
 
 static int
 ExprIsqrtFunc(
-    ClientData clientData,	/* Ignored */
+    TCL_UNUSED(void *),
     Tcl_Interp *interp,		/* The interpreter in which to execute. */
     int objc,			/* Actual parameter count. */
     Tcl_Obj *const *objv)	/* Actual parameter list. */
 {
-    ClientData ptr;
+    void *ptr;
     int type;
     double d;
     Tcl_WideInt w;
     mp_int big;
-    int exact = 0;		/* Flag == 1 if the argument can be
-				 * represented in a double as an exact
-				 * integer. */
+    int exact = 0;		/* Flag ==1 if the argument can be represented
+				 * in a double as an exact integer. */
 
     /*
      * Check syntax.
@@ -6320,7 +7145,7 @@ ExprIsqrtFunc(
      * Make sure that the arg is a number.
      */
 
-    if (TclGetNumberFromObj(interp, objv[1], &ptr, &type) != TCL_OK) {
+    if (Tcl_GetNumberFromObj(interp, objv[1], &ptr, &type) != TCL_OK) {
 	return TCL_ERROR;
     }
 
@@ -6354,7 +7179,7 @@ ExprIsqrtFunc(
 	}
 	break;
     default:
-	if (Tcl_GetWideIntFromObj(interp, objv[1], &w) != TCL_OK) {
+	if (TclGetWideIntFromObj(interp, objv[1], &w) != TCL_OK) {
 	    return TCL_ERROR;
 	}
 	if (w < 0) {
@@ -6376,24 +7201,31 @@ ExprIsqrtFunc(
 	Tcl_SetObjResult(interp, Tcl_NewWideIntObj((Tcl_WideInt) sqrt(d)));
     } else {
 	mp_int root;
+	mp_err err;
 
-	mp_init(&root);
-	mp_sqrt(&big, &root);
+	err = mp_init(&root);
+	if (err == MP_OKAY) {
+	    err = mp_sqrt(&big, &root);
+	}
 	mp_clear(&big);
+	if (err != MP_OKAY) {
+	    return TCL_ERROR;
+	}
 	Tcl_SetObjResult(interp, Tcl_NewBignumObj(&root));
     }
-
     return TCL_OK;
 
   negarg:
-    Tcl_SetObjResult(interp,
-	    Tcl_NewStringObj("square root of negative argument", -1));
+    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+	    "square root of negative argument", TCL_INDEX_NONE));
+    Tcl_SetErrorCode(interp, "ARITH", "DOMAIN",
+	    "domain error: argument not in valid range", (char *)NULL);
     return TCL_ERROR;
 }
 
 static int
 ExprSqrtFunc(
-    ClientData clientData,	/* Ignored */
+    TCL_UNUSED(void *),
     Tcl_Interp *interp,		/* The interpreter in which to execute the
 				 * function. */
     int objc,			/* Actual parameter count. */
@@ -6409,21 +7241,32 @@ ExprSqrtFunc(
     }
     code = Tcl_GetDoubleFromObj(interp, objv[1], &d);
 #ifdef ACCEPT_NAN
-    if ((code != TCL_OK) && (objv[1]->typePtr == &tclDoubleType)) {
-	Tcl_SetObjResult(interp, objv[1]);
-	return TCL_OK;
+    if (code != TCL_OK) {
+	const Tcl_ObjInternalRep *irPtr = TclFetchInternalRep(objv[1], &tclDoubleType);
+
+	if (irPtr) {
+	    Tcl_SetObjResult(interp, objv[1]);
+	    return TCL_OK;
+	}
     }
 #endif
     if (code != TCL_OK) {
 	return TCL_ERROR;
     }
-    if ((d >= 0.0) && TclIsInfinite(d)
+    if ((d >= 0.0) && isinf(d)
 	    && (Tcl_GetBignumFromObj(NULL, objv[1], &big) == TCL_OK)) {
 	mp_int root;
+	mp_err err;
 
-	mp_init(&root);
-	mp_sqrt(&big, &root);
+	err = mp_init(&root);
+	if (err == MP_OKAY) {
+	    err = mp_sqrt(&big, &root);
+	}
 	mp_clear(&big);
+	if (err != MP_OKAY) {
+	    mp_clear(&root);
+	    return TCL_ERROR;
+	}
 	Tcl_SetObjResult(interp, Tcl_NewDoubleObj(TclBignumToDouble(&root)));
 	mp_clear(&root);
     } else {
@@ -6434,7 +7277,7 @@ ExprSqrtFunc(
 
 static int
 ExprUnaryFunc(
-    ClientData clientData,	/* Contains the address of a function that
+    void *clientData,		/* Contains the address of a function that
 				 * takes one double argument and returns a
 				 * double result. */
     Tcl_Interp *interp,		/* The interpreter in which to execute the
@@ -6444,7 +7287,7 @@ ExprUnaryFunc(
 {
     int code;
     double d;
-    double (*func)(double) = (double (*)(double)) clientData;
+    BuiltinUnaryFunc *func = (BuiltinUnaryFunc *) clientData;
 
     if (objc != 2) {
 	MathFuncWrongNumArgs(interp, 2, objc, objv);
@@ -6452,17 +7295,21 @@ ExprUnaryFunc(
     }
     code = Tcl_GetDoubleFromObj(interp, objv[1], &d);
 #ifdef ACCEPT_NAN
-    if ((code != TCL_OK) && (objv[1]->typePtr == &tclDoubleType)) {
-	d = objv[1]->internalRep.doubleValue;
-	Tcl_ResetResult(interp);
-	code = TCL_OK;
+    if (code != TCL_OK) {
+	const Tcl_ObjInternalRep *irPtr = TclFetchInternalRep(objv[1], &tclDoubleType);
+
+	if (irPtr) {
+	    d = irPtr->doubleValue;
+	    Tcl_ResetResult(interp);
+	    code = TCL_OK;
+	}
     }
 #endif
     if (code != TCL_OK) {
 	return TCL_ERROR;
     }
     errno = 0;
-    return CheckDoubleResult(interp, (*func)(d));
+    return CheckDoubleResult(interp, func(d));
 }
 
 static int
@@ -6471,12 +7318,12 @@ CheckDoubleResult(
     double dResult)
 {
 #ifndef ACCEPT_NAN
-    if (TclIsNaN(dResult)) {
+    if (isnan(dResult)) {
 	TclExprFloatError(interp, dResult);
 	return TCL_ERROR;
     }
 #endif
-    if ((errno == ERANGE) && ((dResult == 0.0) || TclIsInfinite(dResult))) {
+    if ((errno == ERANGE) && ((dResult == 0.0) || isinf(dResult))) {
 	/*
 	 * When ERANGE signals under/overflow, just accept 0.0 or +/-Inf
 	 */
@@ -6494,7 +7341,7 @@ CheckDoubleResult(
 
 static int
 ExprBinaryFunc(
-    ClientData clientData,	/* Contains the address of a function that
+    void *clientData,		/* Contains the address of a function that
 				 * takes two double arguments and returns a
 				 * double result. */
     Tcl_Interp *interp,		/* The interpreter in which to execute the
@@ -6504,7 +7351,7 @@ ExprBinaryFunc(
 {
     int code;
     double d1, d2;
-    double (*func)(double, double) = (double (*)(double, double)) clientData;
+    BuiltinBinaryFunc *func = (BuiltinBinaryFunc *)clientData;
 
     if (objc != 3) {
 	MathFuncWrongNumArgs(interp, 3, objc, objv);
@@ -6512,10 +7359,14 @@ ExprBinaryFunc(
     }
     code = Tcl_GetDoubleFromObj(interp, objv[1], &d1);
 #ifdef ACCEPT_NAN
-    if ((code != TCL_OK) && (objv[1]->typePtr == &tclDoubleType)) {
-	d1 = objv[1]->internalRep.doubleValue;
-	Tcl_ResetResult(interp);
-	code = TCL_OK;
+    if (code != TCL_OK) {
+	const Tcl_ObjInternalRep *irPtr = TclFetchInternalRep(objv[1], &tclDoubleType);
+
+	if (irPtr) {
+	    d1 = irPtr->doubleValue;
+	    Tcl_ResetResult(interp);
+	    code = TCL_OK;
+	}
     }
 #endif
     if (code != TCL_OK) {
@@ -6523,28 +7374,32 @@ ExprBinaryFunc(
     }
     code = Tcl_GetDoubleFromObj(interp, objv[2], &d2);
 #ifdef ACCEPT_NAN
-    if ((code != TCL_OK) && (objv[2]->typePtr == &tclDoubleType)) {
-	d2 = objv[2]->internalRep.doubleValue;
-	Tcl_ResetResult(interp);
-	code = TCL_OK;
+    if (code != TCL_OK) {
+	const Tcl_ObjInternalRep *irPtr = TclFetchInternalRep(objv[1], &tclDoubleType);
+
+	if (irPtr) {
+	    d2 = irPtr->doubleValue;
+	    Tcl_ResetResult(interp);
+	    code = TCL_OK;
+	}
     }
 #endif
     if (code != TCL_OK) {
 	return TCL_ERROR;
     }
     errno = 0;
-    return CheckDoubleResult(interp, (*func)(d1, d2));
+    return CheckDoubleResult(interp, func(d1, d2));
 }
 
 static int
 ExprAbsFunc(
-    ClientData clientData,	/* Ignored. */
+    TCL_UNUSED(void *),
     Tcl_Interp *interp,		/* The interpreter in which to execute the
 				 * function. */
     int objc,			/* Actual parameter count. */
     Tcl_Obj *const *objv)	/* Parameter vector. */
 {
-    ClientData ptr;
+    void *ptr;
     int type;
     mp_int big;
 
@@ -6553,32 +7408,46 @@ ExprAbsFunc(
 	return TCL_ERROR;
     }
 
-    if (TclGetNumberFromObj(interp, objv[1], &ptr, &type) != TCL_OK) {
+    if (Tcl_GetNumberFromObj(interp, objv[1], &ptr, &type) != TCL_OK) {
 	return TCL_ERROR;
     }
 
-    if (type == TCL_NUMBER_LONG) {
-	long l = *((const long *) ptr);
+    if (type == TCL_NUMBER_INT) {
+	Tcl_WideInt l = *((const Tcl_WideInt *) ptr);
 
-	if (l > (long)0) {
+	if (l > 0) {
 	    goto unChanged;
-	} else if (l == (long)0) {
-	    const char *string = objv[1]->bytes;
-	    if (string) {
-		while (*string != '0') {
-		    if (*string == '-') {
-			Tcl_SetObjResult(interp, Tcl_NewLongObj(0));
+	} else if (l == 0) {
+	    if (TclHasStringRep(objv[1])) {
+		Tcl_Size numBytes;
+		const char *bytes = TclGetStringFromObj(objv[1], &numBytes);
+
+		while (numBytes) {
+		    if (*bytes == '-') {
+			Tcl_SetObjResult(interp, Tcl_NewWideIntObj(0));
 			return TCL_OK;
 		    }
-		    string++;
+		    bytes++;
+		    numBytes--;
 		}
 	    }
 	    goto unChanged;
-	} else if (l == LONG_MIN) {
-	    TclBNInitBignumFromLong(&big, l);
+	} else if (l == WIDE_MIN) {
+	    if (sizeof(Tcl_WideInt) > sizeof(int64_t)) {
+		Tcl_WideUInt ul = -(Tcl_WideUInt)WIDE_MIN;
+		if (mp_init(&big) != MP_OKAY || mp_unpack(&big, 1, 1,
+			sizeof(Tcl_WideInt), 0, 0, &ul) != MP_OKAY) {
+		    return TCL_ERROR;
+		}
+		if (mp_neg(&big, &big) != MP_OKAY) {
+		    return TCL_ERROR;
+		}
+	    } else if (mp_init_i64(&big, l) != MP_OKAY) {
+		return TCL_ERROR;
+	    }
 	    goto tooLarge;
 	}
-	Tcl_SetObjResult(interp, Tcl_NewLongObj(-l));
+	Tcl_SetObjResult(interp, Tcl_NewWideIntObj(-l));
 	return TCL_OK;
     }
 
@@ -6586,43 +7455,29 @@ ExprAbsFunc(
 	double d = *((const double *) ptr);
 	static const double poszero = 0.0;
 
-	/* We need to distinguish here between positive 0.0 and
-	 * negative -0.0, see Bug ID #2954959.
+	/*
+	 * We need to distinguish here between positive 0.0 and negative -0.0.
+	 * [Bug 2954959]
 	 */
+
 	if (d == -0.0) {
-		if (!memcmp(&d, &poszero, sizeof(double))) {
-	    goto unChanged;
-	    }
-	} else {
-	    if (d > -0.0) {
+	    if (!memcmp(&d, &poszero, sizeof(double))) {
 		goto unChanged;
 	    }
-	}
-	Tcl_SetObjResult(interp, Tcl_NewDoubleObj(-d));
-	return TCL_OK;
-    }
-
-#ifndef NO_WIDE_TYPE
-    if (type == TCL_NUMBER_WIDE) {
-	Tcl_WideInt w = *((const Tcl_WideInt *) ptr);
-
-	if (w >= (Tcl_WideInt)0) {
+	} else if (d > -0.0) {
 	    goto unChanged;
 	}
-	if (w == LLONG_MIN) {
-	    TclBNInitBignumFromWideInt(&big, w);
-	    goto tooLarge;
-	}
-	Tcl_SetObjResult(interp, Tcl_NewWideIntObj(-w));
+	Tcl_SetObjResult(interp, Tcl_NewDoubleObj(-d));
 	return TCL_OK;
     }
-#endif
 
     if (type == TCL_NUMBER_BIG) {
-	if (mp_cmp_d(ptr, 0) == MP_LT) {
+	if (mp_isneg((const mp_int *) ptr)) {
 	    Tcl_GetBignumFromObj(NULL, objv[1], &big);
 	tooLarge:
-	    mp_neg(&big, &big);
+	    if (mp_neg(&big, &big) != MP_OKAY) {
+		return TCL_ERROR;
+	    }
 	    Tcl_SetObjResult(interp, Tcl_NewBignumObj(&big));
 	} else {
 	unChanged:
@@ -6637,6 +7492,7 @@ ExprAbsFunc(
 	return TCL_OK;
 #else
 	double d;
+
 	Tcl_GetDoubleFromObj(interp, objv[1], &d);
 	return TCL_ERROR;
 #endif
@@ -6646,7 +7502,7 @@ ExprAbsFunc(
 
 static int
 ExprBoolFunc(
-    ClientData clientData,	/* Ignored. */
+    TCL_UNUSED(void *),
     Tcl_Interp *interp,		/* The interpreter in which to execute the
 				 * function. */
     int objc,			/* Actual parameter count. */
@@ -6667,20 +7523,21 @@ ExprBoolFunc(
 
 static int
 ExprDoubleFunc(
-    ClientData clientData,	/* Ignored. */
+    TCL_UNUSED(void *),
     Tcl_Interp *interp,		/* The interpreter in which to execute the
 				 * function. */
     int objc,			/* Actual parameter count. */
     Tcl_Obj *const *objv)	/* Actual parameter vector. */
 {
     double dResult;
+
     if (objc != 2) {
 	MathFuncWrongNumArgs(interp, 2, objc, objv);
 	return TCL_ERROR;
     }
     if (Tcl_GetDoubleFromObj(interp, objv[1], &dResult) != TCL_OK) {
 #ifdef ACCEPT_NAN
-	if (objv[1]->typePtr == &tclDoubleType) {
+	if (TclHasInternalRep(objv[1], &tclDoubleType)) {
 	    Tcl_SetObjResult(interp, objv[1]);
 	    return TCL_OK;
 	}
@@ -6692,8 +7549,8 @@ ExprDoubleFunc(
 }
 
 static int
-ExprEntierFunc(
-    ClientData clientData,	/* Ignored. */
+ExprIntFunc(
+    TCL_UNUSED(void *),
     Tcl_Interp *interp,		/* The interpreter in which to execute the
 				 * function. */
     int objc,			/* Actual parameter count. */
@@ -6701,19 +7558,19 @@ ExprEntierFunc(
 {
     double d;
     int type;
-    ClientData ptr;
+    void *ptr;
 
     if (objc != 2) {
 	MathFuncWrongNumArgs(interp, 2, objc, objv);
 	return TCL_ERROR;
     }
-    if (TclGetNumberFromObj(interp, objv[1], &ptr, &type) != TCL_OK) {
+    if (Tcl_GetNumberFromObj(interp, objv[1], &ptr, &type) != TCL_OK) {
 	return TCL_ERROR;
     }
 
     if (type == TCL_NUMBER_DOUBLE) {
 	d = *((const double *) ptr);
-	if ((d >= (double)LONG_MAX) || (d <= (double)LONG_MIN)) {
+	if ((d >= (double)WIDE_MAX) || (d <= (double)WIDE_MIN)) {
 	    mp_int big;
 
 	    if (Tcl_InitBignumFromDouble(interp, d, &big) != TCL_OK) {
@@ -6723,9 +7580,9 @@ ExprEntierFunc(
 	    Tcl_SetObjResult(interp, Tcl_NewBignumObj(&big));
 	    return TCL_OK;
 	} else {
-	    long result = (long) d;
+	    Tcl_WideInt result = (Tcl_WideInt) d;
 
-	    Tcl_SetObjResult(interp, Tcl_NewLongObj(result));
+	    Tcl_SetObjResult(interp, Tcl_NewWideIntObj(result));
 	    return TCL_OK;
 	}
     }
@@ -6748,72 +7605,92 @@ ExprEntierFunc(
 }
 
 static int
-ExprIntFunc(
-    ClientData clientData,	/* Ignored. */
+ExprWideFunc(
+    TCL_UNUSED(void *),
     Tcl_Interp *interp,		/* The interpreter in which to execute the
 				 * function. */
     int objc,			/* Actual parameter count. */
     Tcl_Obj *const *objv)	/* Actual parameter vector. */
 {
-    long iResult;
-    Tcl_Obj *objPtr;
-    if (ExprEntierFunc(NULL, interp, objc, objv) != TCL_OK) {
-	return TCL_ERROR;
-    }
-    objPtr = Tcl_GetObjResult(interp);
-    if (TclGetLongFromObj(NULL, objPtr, &iResult) != TCL_OK) {
-	/*
-	 * Truncate the bignum; keep only bits in long range.
-	 */
-
-	mp_int big;
+    Tcl_WideInt wResult;
 
-	Tcl_GetBignumFromObj(NULL, objPtr, &big);
-	mp_mod_2d(&big, CHAR_BIT * sizeof(long), &big);
-	objPtr = Tcl_NewBignumObj(&big);
-	Tcl_IncrRefCount(objPtr);
-	TclGetLongFromObj(NULL, objPtr, &iResult);
-	Tcl_DecrRefCount(objPtr);
+    if (ExprIntFunc(NULL, interp, objc, objv) != TCL_OK) {
+	return TCL_ERROR;
     }
-    Tcl_SetObjResult(interp, Tcl_NewLongObj(iResult));
+    TclGetWideBitsFromObj(NULL, Tcl_GetObjResult(interp), &wResult);
+    Tcl_SetObjResult(interp, Tcl_NewWideIntObj(wResult));
     return TCL_OK;
 }
 
+/*
+ * Common implmentation of max() and min().
+ */
 static int
-ExprWideFunc(
-    ClientData clientData,	/* Ignored. */
+ExprMaxMinFunc(
+    TCL_UNUSED(void *),
     Tcl_Interp *interp,		/* The interpreter in which to execute the
 				 * function. */
     int objc,			/* Actual parameter count. */
-    Tcl_Obj *const *objv)	/* Actual parameter vector. */
+    Tcl_Obj *const *objv,	/* Actual parameter vector. */
+    int op)			/* Comparison direction */
 {
-    Tcl_WideInt wResult;
-    Tcl_Obj *objPtr;
-    if (ExprEntierFunc(NULL, interp, objc, objv) != TCL_OK) {
+    Tcl_Obj *res;
+    double d;
+    int type;
+    int i;
+    void *ptr;
+
+    if (objc < 2) {
+	MathFuncWrongNumArgs(interp, 2, objc, objv);
 	return TCL_ERROR;
     }
-    objPtr = Tcl_GetObjResult(interp);
-    if (Tcl_GetWideIntFromObj(NULL, objPtr, &wResult) != TCL_OK) {
-	/*
-	 * Truncate the bignum; keep only bits in wide int range.
-	 */
-
-	mp_int big;
+    res = objv[1];
+    for (i = 1; i < objc; i++) {
+	if (Tcl_GetNumberFromObj(interp, objv[i], &ptr, &type) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+	if (type == TCL_NUMBER_NAN) {
+	    /*
+	     * Get the error message for NaN.
+	     */
 
-	Tcl_GetBignumFromObj(NULL, objPtr, &big);
-	mp_mod_2d(&big, CHAR_BIT * sizeof(Tcl_WideInt), &big);
-	objPtr = Tcl_NewBignumObj(&big);
-	Tcl_IncrRefCount(objPtr);
-	Tcl_GetWideIntFromObj(NULL, objPtr, &wResult);
-	Tcl_DecrRefCount(objPtr);
+	    Tcl_GetDoubleFromObj(interp, objv[i], &d);
+	    return TCL_ERROR;
+	}
+	if (TclCompareTwoNumbers(objv[i], res) == op) {
+	    res = objv[i];
+	}
     }
-    Tcl_SetObjResult(interp, Tcl_NewWideIntObj(wResult));
+
+    Tcl_SetObjResult(interp, res);
     return TCL_OK;
 }
 
 static int
+ExprMaxFunc(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,		/* The interpreter in which to execute the
+				 * function. */
+    int objc,			/* Actual parameter count. */
+    Tcl_Obj *const *objv)	/* Actual parameter vector. */
+{
+    return ExprMaxMinFunc(NULL, interp, objc, objv, MP_GT);
+}
+
+static int
+ExprMinFunc(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,		/* The interpreter in which to execute the
+				 * function. */
+    int objc,			/* Actual parameter count. */
+    Tcl_Obj *const *objv)	/* Actual parameter vector. */
+{
+    return ExprMaxMinFunc(NULL, interp, objc, objv, MP_LT);
+}
+
+static int
 ExprRandFunc(
-    ClientData clientData,	/* Ignored. */
+    TCL_UNUSED(void *),
     Tcl_Interp *interp,		/* The interpreter in which to execute the
 				 * function. */
     int objc,			/* Actual parameter count. */
@@ -6834,19 +7711,19 @@ ExprRandFunc(
 	iPtr->flags |= RAND_SEED_INITIALIZED;
 
 	/*
-	 * Take into consideration the thread this interp is running in order
-	 * to insure different seeds in different threads (bug #416643)
+	 * To ensure different seeds in different threads (bug #416643),
+	 * take into consideration the thread this interp is running in.
 	 */
 
-	iPtr->randSeed = TclpGetClicks() + (PTR2INT(Tcl_GetCurrentThread())<<12);
+	iPtr->randSeed = TclpGetClicks() + PTR2UINT(Tcl_GetCurrentThread()) * 4093U;
 
 	/*
 	 * Make sure 1 <= randSeed <= (2^31) - 2. See below.
 	 */
 
-	iPtr->randSeed &= (unsigned long) 0x7fffffff;
-	if ((iPtr->randSeed == 0) || (iPtr->randSeed == 0x7fffffff)) {
-	    iPtr->randSeed ^= 123459876;
+	iPtr->randSeed &= 0x7FFFFFFFL;
+	if ((iPtr->randSeed == 0) || (iPtr->randSeed == 0x7FFFFFFFL)) {
+	    iPtr->randSeed ^= 123459876L;
 	}
     }
 
@@ -6893,7 +7770,7 @@ ExprRandFunc(
      * dividing by RAND_IM yields a double in the range (0, 1).
      */
 
-    dResult = iPtr->randSeed * (1.0/RAND_IM);
+    dResult = (double)iPtr->randSeed * (1.0/RAND_IM);
 
     /*
      * Push a Tcl object with the result.
@@ -6906,14 +7783,14 @@ ExprRandFunc(
 
 static int
 ExprRoundFunc(
-    ClientData clientData,	/* Ignored. */
+    TCL_UNUSED(void *),
     Tcl_Interp *interp,		/* The interpreter in which to execute the
 				 * function. */
     int objc,			/* Actual parameter count. */
     Tcl_Obj *const *objv)	/* Parameter vector. */
 {
     double d;
-    ClientData ptr;
+    void *ptr;
     int type;
 
     if (objc != 2) {
@@ -6921,13 +7798,13 @@ ExprRoundFunc(
 	return TCL_ERROR;
     }
 
-    if (TclGetNumberFromObj(interp, objv[1], &ptr, &type) != TCL_OK) {
+    if (Tcl_GetNumberFromObj(interp, objv[1], &ptr, &type) != TCL_OK) {
 	return TCL_ERROR;
     }
 
     if (type == TCL_NUMBER_DOUBLE) {
 	double fractPart, intPart;
-	long max = LONG_MAX, min = LONG_MIN;
+	Tcl_WideInt max = WIDE_MAX, min = WIDE_MIN;
 
 	fractPart = modf(*((const double *) ptr), &intPart);
 	if (fractPart <= -0.5) {
@@ -6937,27 +7814,31 @@ ExprRoundFunc(
 	}
 	if ((intPart >= (double)max) || (intPart <= (double)min)) {
 	    mp_int big;
+	    mp_err err = MP_OKAY;
 
 	    if (Tcl_InitBignumFromDouble(interp, intPart, &big) != TCL_OK) {
 		/* Infinity */
 		return TCL_ERROR;
 	    }
 	    if (fractPart <= -0.5) {
-		mp_sub_d(&big, 1, &big);
+		err = mp_sub_d(&big, 1, &big);
 	    } else if (fractPart >= 0.5) {
-		mp_add_d(&big, 1, &big);
+		err = mp_add_d(&big, 1, &big);
+	    }
+	    if (err != MP_OKAY) {
+		return TCL_ERROR;
 	    }
 	    Tcl_SetObjResult(interp, Tcl_NewBignumObj(&big));
 	    return TCL_OK;
 	} else {
-	    long result = (long)intPart;
+	    Tcl_WideInt result = (Tcl_WideInt)intPart;
 
 	    if (fractPart <= -0.5) {
 		result--;
 	    } else if (fractPart >= 0.5) {
 		result++;
 	    }
-	    Tcl_SetObjResult(interp, Tcl_NewLongObj(result));
+	    Tcl_SetObjResult(interp, Tcl_NewWideIntObj(result));
 	    return TCL_OK;
 	}
     }
@@ -6981,14 +7862,14 @@ ExprRoundFunc(
 
 static int
 ExprSrandFunc(
-    ClientData clientData,	/* Ignored. */
+    TCL_UNUSED(void *),
     Tcl_Interp *interp,		/* The interpreter in which to execute the
 				 * function. */
     int objc,			/* Actual parameter count. */
     Tcl_Obj *const *objv)	/* Parameter vector. */
 {
     Interp *iPtr = (Interp *) interp;
-    long i = 0;			/* Initialized to avoid compiler warning. */
+    Tcl_WideInt w = 0;		/* Initialized to avoid compiler warning. */
 
     /*
      * Convert argument and use it to reset the seed.
@@ -6999,31 +7880,18 @@ ExprSrandFunc(
 	return TCL_ERROR;
     }
 
-    if (TclGetLongFromObj(NULL, objv[1], &i) != TCL_OK) {
-	Tcl_Obj *objPtr;
-	mp_int big;
-
-	if (Tcl_GetBignumFromObj(interp, objv[1], &big) != TCL_OK) {
-	    /* TODO: more ::errorInfo here? or in caller? */
-	    return TCL_ERROR;
-	}
-
-	mp_mod_2d(&big, CHAR_BIT * sizeof(long), &big);
-	objPtr = Tcl_NewBignumObj(&big);
-	Tcl_IncrRefCount(objPtr);
-	TclGetLongFromObj(NULL, objPtr, &i);
-	Tcl_DecrRefCount(objPtr);
+    if (TclGetWideBitsFromObj(NULL, objv[1], &w) != TCL_OK) {
+	return TCL_ERROR;
     }
 
     /*
      * Reset the seed. Make sure 1 <= randSeed <= 2^31 - 2. See comments in
-     * ExprRandFunc() for more details.
+     * ExprRandFunc for more details.
      */
 
     iPtr->flags |= RAND_SEED_INITIALIZED;
-    iPtr->randSeed = i;
-    iPtr->randSeed &= (unsigned long) 0x7fffffff;
-    if ((iPtr->randSeed == 0) || (iPtr->randSeed == 0x7fffffff)) {
+    iPtr->randSeed = (long) w & 0x7FFFFFFF;
+    if ((iPtr->randSeed == 0) || (iPtr->randSeed == 0x7FFFFFFF)) {
 	iPtr->randSeed ^= 123459876;
     }
 
@@ -7033,7 +7901,343 @@ ExprSrandFunc(
      * will always succeed.
      */
 
-    return ExprRandFunc(clientData, interp, 1, objv);
+    return ExprRandFunc(NULL, interp, 1, objv);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Double Classification Functions --
+ *
+ *	This page contains the functions that implement all of the built-in
+ *	math functions for classifying IEEE doubles.
+ *
+ *	These have to be a little bit careful while Tcl_GetDoubleFromObj()
+ *	rejects NaN values, which these functions *explicitly* accept.
+ *
+ * Results:
+ *	Each function returns TCL_OK if it succeeds and pushes an Tcl object
+ *	holding the result. If it fails it returns TCL_ERROR and leaves an
+ *	error message in the interpreter's result.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ *
+ * Older MSVC is supported by Tcl, but doesn't have fpclassify(). Of course.
+ * But it does sometimes have _fpclass() which does almost the same job; if
+ * even that is absent, we grobble around directly in the platform's binary
+ * representation of double.
+ *
+ * The ClassifyDouble() function makes all that conform to a common API
+ * (effectively the C99 standard API renamed), and just delegates to the
+ * standard macro on platforms that do it correctly.
+ */
+
+static inline int
+ClassifyDouble(
+    double d)
+{
+#if TCL_FPCLASSIFY_MODE == 0
+    return fpclassify(d);
+#else /* TCL_FPCLASSIFY_MODE != 0 */
+    /*
+     * If we don't have fpclassify(), we also don't have the values it returns.
+     * Hence we define those here.
+     */
+#ifndef FP_NAN
+#   define FP_NAN	1	/* Value is NaN */
+#   define FP_INFINITE	2	/* Value is an infinity */
+#   define FP_ZERO	3	/* Value is a zero */
+#   define FP_NORMAL	4	/* Value is a normal float */
+#   define FP_SUBNORMAL	5	/* Value has lost accuracy */
+#endif /* !FP_NAN */
+
+#if TCL_FPCLASSIFY_MODE == 3
+    return __builtin_fpclassify(
+	    FP_NAN, FP_INFINITE, FP_NORMAL, FP_SUBNORMAL, FP_ZERO, d);
+#elif TCL_FPCLASSIFY_MODE == 2
+    /*
+     * We assume this hack is only needed on little-endian systems.
+     * Specifically, x86 running Windows.  It's fairly easy to enable for
+     * others if they need it (because their libc/libm is broken) but we'll
+     * jump that hurdle when requred.  We can solve the word ordering then.
+     */
+
+    union {
+	double d;		/* Interpret as double */
+	struct {
+	    unsigned int low;	/* Lower 32 bits */
+	    unsigned int high;	/* Upper 32 bits */
+	} w;			/* Interpret as unsigned integer words */
+    } doubleMeaning;		/* So we can look at the representation of a
+				 * double directly. Platform (i.e., processor)
+				 * specific; this is for x86 (and most other
+				 * little-endian processors, but those are
+				 * untested). */
+    unsigned int exponent, mantissaLow, mantissaHigh;
+				/* The pieces extracted from the double. */
+    int zeroMantissa;		/* Was the mantissa zero? That's special. */
+
+    /*
+     * Shifts and masks to use with the doubleMeaning variable above.
+     */
+
+#define EXPONENT_MASK   0x7FF	/* 11 bits (after shifting) */
+#define EXPONENT_SHIFT  20	/* Moves exponent to bottom of word */
+#define MANTISSA_MASK   0xFFFFF	/* 20 bits (plus 32 from other word) */
+
+    /*
+     * Extract the exponent (11 bits) and mantissa (52 bits).  Note that we
+     * totally ignore the sign bit.
+     */
+
+    doubleMeaning.d = d;
+    exponent = (doubleMeaning.w.high >> EXPONENT_SHIFT) & EXPONENT_MASK;
+    mantissaLow = doubleMeaning.w.low;
+    mantissaHigh = doubleMeaning.w.high & MANTISSA_MASK;
+    zeroMantissa = (mantissaHigh == 0 && mantissaLow == 0);
+
+    /*
+     * Look for the special cases of exponent.
+     */
+
+    switch (exponent) {
+    case 0:
+	/*
+	 * When the exponent is all zeros, it's a ZERO or a SUBNORMAL.
+	 */
+
+	return zeroMantissa ? FP_ZERO : FP_SUBNORMAL;
+    case EXPONENT_MASK:
+	/*
+	 * When the exponent is all ones, it's an INF or a NAN.
+	 */
+
+	return zeroMantissa ? FP_INFINITE : FP_NAN;
+    default:
+	/*
+	 * Everything else is a NORMAL double precision float.
+	 */
+
+	return FP_NORMAL;
+    }
+#elif TCL_FPCLASSIFY_MODE == 1
+    switch (_fpclass(d)) {
+    case _FPCLASS_NZ:
+    case _FPCLASS_PZ:
+	return FP_ZERO;
+    case _FPCLASS_NN:
+    case _FPCLASS_PN:
+	return FP_NORMAL;
+    case _FPCLASS_ND:
+    case _FPCLASS_PD:
+	return FP_SUBNORMAL;
+    case _FPCLASS_NINF:
+    case _FPCLASS_PINF:
+	return FP_INFINITE;
+    default:
+	Tcl_Panic("result of _fpclass() outside documented range!");
+    case _FPCLASS_QNAN:
+    case _FPCLASS_SNAN:
+	return FP_NAN;
+    }
+#else /* TCL_FPCLASSIFY_MODE not in (0..3) */
+#error "unknown or unexpected TCL_FPCLASSIFY_MODE"
+#endif /* TCL_FPCLASSIFY_MODE */
+#endif /* !fpclassify */
+}
+
+static inline int
+DoubleObjClass(
+    Tcl_Interp *interp,
+    Tcl_Obj *objPtr,		/* Object with double to get its class. */
+    int *fpClsPtr)		/* FP class retrieved for double in object. */
+{
+    double d;
+    void *ptr;
+    int type;
+
+    if (Tcl_GetNumberFromObj(interp, objPtr, &ptr, &type) != TCL_OK) {
+	return TCL_ERROR;
+    }
+    switch (type) {
+      case TCL_NUMBER_NAN:
+	*fpClsPtr = FP_NAN;
+	return TCL_OK;
+      case TCL_NUMBER_DOUBLE:
+	d = *((const double *) ptr);
+	break;
+      case TCL_NUMBER_INT:
+	d = (double)*((const Tcl_WideInt *) ptr);
+	break;
+      default:
+	if (Tcl_GetDoubleFromObj(interp, objPtr, &d) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+	break;
+    }
+    *fpClsPtr = ClassifyDouble(d);
+    return TCL_OK;
+}
+static inline int
+DoubleObjIsClass(
+    Tcl_Interp *interp,
+    int objc,			/* Actual parameter count */
+    Tcl_Obj *const *objv,	/* Actual parameter list */
+    int cmpCls,			/* FP class to compare. */
+    int positive)		/* 1 if compare positive, 0 - otherwise */
+{
+    int dCls;
+
+    if (objc != 2) {
+	MathFuncWrongNumArgs(interp, 2, objc, objv);
+	return TCL_ERROR;
+    }
+
+    if (DoubleObjClass(interp, objv[1], &dCls) != TCL_OK) {
+	return TCL_ERROR;
+    }
+    dCls = (
+	positive
+	    ? (dCls == cmpCls)
+	    : (dCls != cmpCls && dCls != FP_NAN)
+    ) ? 1 : 0;
+    Tcl_SetObjResult(interp, ((Interp *)interp)->execEnvPtr->constants[dCls]);
+    return TCL_OK;
+}
+
+static int
+ExprIsFiniteFunc(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,		/* The interpreter in which to execute the
+				 * function. */
+    int objc,			/* Actual parameter count */
+    Tcl_Obj *const *objv)	/* Actual parameter list */
+{
+    return DoubleObjIsClass(interp, objc, objv, FP_INFINITE, 0);
+}
+
+static int
+ExprIsInfinityFunc(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,		/* The interpreter in which to execute the
+				 * function. */
+    int objc,			/* Actual parameter count */
+    Tcl_Obj *const *objv)	/* Actual parameter list */
+{
+    return DoubleObjIsClass(interp, objc, objv, FP_INFINITE, 1);
+}
+
+static int
+ExprIsNaNFunc(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,		/* The interpreter in which to execute the
+				 * function. */
+    int objc,			/* Actual parameter count */
+    Tcl_Obj *const *objv)	/* Actual parameter list */
+{
+    return DoubleObjIsClass(interp, objc, objv, FP_NAN, 1);
+}
+
+static int
+ExprIsNormalFunc(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,		/* The interpreter in which to execute the
+				 * function. */
+    int objc,			/* Actual parameter count */
+    Tcl_Obj *const *objv)	/* Actual parameter list */
+{
+    return DoubleObjIsClass(interp, objc, objv, FP_NORMAL, 1);
+}
+
+static int
+ExprIsSubnormalFunc(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,		/* The interpreter in which to execute the
+				 * function. */
+    int objc,			/* Actual parameter count */
+    Tcl_Obj *const *objv)	/* Actual parameter list */
+{
+    return DoubleObjIsClass(interp, objc, objv, FP_SUBNORMAL, 1);
+}
+
+static int
+ExprIsUnorderedFunc(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,		/* The interpreter in which to execute the
+				 * function. */
+    int objc,			/* Actual parameter count */
+    Tcl_Obj *const *objv)	/* Actual parameter list */
+{
+    int dCls, dCls2;
+
+    if (objc != 3) {
+	MathFuncWrongNumArgs(interp, 3, objc, objv);
+	return TCL_ERROR;
+    }
+
+    if (DoubleObjClass(interp, objv[1], &dCls) != TCL_OK ||
+	    DoubleObjClass(interp, objv[2], &dCls2) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    dCls = ((dCls == FP_NAN) || (dCls2 == FP_NAN)) ? 1 : 0;
+    Tcl_SetObjResult(interp, ((Interp *)interp)->execEnvPtr->constants[dCls]);
+    return TCL_OK;
+}
+
+static int
+FloatClassifyObjCmd(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,		/* The interpreter in which to execute the
+				 * function. */
+    int objc,			/* Actual parameter count */
+    Tcl_Obj *const *objv)	/* Actual parameter list */
+{
+    double d;
+    Tcl_Obj *objPtr;
+    void *ptr;
+    int type;
+
+    if (objc != 2) {
+	Tcl_WrongNumArgs(interp, 1, objv, "floatValue");
+	return TCL_ERROR;
+    }
+
+    if (Tcl_GetNumberFromObj(interp, objv[1], &ptr, &type) != TCL_OK) {
+	return TCL_ERROR;
+    }
+    if (type == TCL_NUMBER_NAN) {
+	goto gotNaN;
+    } else if (Tcl_GetDoubleFromObj(interp, objv[1], &d) != TCL_OK) {
+	return TCL_ERROR;
+    }
+    switch (ClassifyDouble(d)) {
+    case FP_INFINITE:
+	TclNewLiteralStringObj(objPtr, "infinite");
+	break;
+    case FP_NAN:
+    gotNaN:
+	TclNewLiteralStringObj(objPtr, "nan");
+	break;
+    case FP_NORMAL:
+	TclNewLiteralStringObj(objPtr, "normal");
+	break;
+    case FP_SUBNORMAL:
+	TclNewLiteralStringObj(objPtr, "subnormal");
+	break;
+    case FP_ZERO:
+	TclNewLiteralStringObj(objPtr, "zero");
+	break;
+    default:
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"unable to classify number: %f", d));
+	return TCL_ERROR;
+    }
+    Tcl_SetObjResult(interp, objPtr);
+    return TCL_OK;
 }
 
 /*
@@ -7056,26 +8260,27 @@ ExprSrandFunc(
 static void
 MathFuncWrongNumArgs(
     Tcl_Interp *interp,		/* Tcl interpreter */
-    int expected,		/* Formal parameter count. */
-    int found,			/* Actual parameter count. */
+    Tcl_Size expected,		/* Formal parameter count. */
+    Tcl_Size found,			/* Actual parameter count. */
     Tcl_Obj *const *objv)	/* Actual parameter vector. */
 {
-    const char *name = Tcl_GetString(objv[0]);
+    const char *name = TclGetString(objv[0]);
     const char *tail = name + strlen(name);
 
-    while (tail > name+1) {
-	--tail;
+    while (tail > name + 1) {
+	tail--;
 	if (*tail == ':' && tail[-1] == ':') {
-	    name = tail+1;
+	    name = tail + 1;
 	    break;
 	}
     }
     Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-	    "too %s arguments for math function \"%s\"",
-	    (found < expected ? "few" : "many"), name));
+	    "%s arguments for math function \"%s\"",
+	    (found < expected ? "not enough" : "too many"), name));
+    Tcl_SetErrorCode(interp, "TCL", "WRONGARGS", (char *)NULL);
 }
-#ifdef USE_DTRACE
 
+#ifdef USE_DTRACE
 /*
  *----------------------------------------------------------------------
  *
@@ -7094,8 +8299,8 @@ MathFuncWrongNumArgs(
 
 static int
 DTraceObjCmd(
-    ClientData dummy,		/* Not used. */
-    Tcl_Interp *interp,		/* Current interpreter. */
+    TCL_UNUSED(void *),
+    TCL_UNUSED(Tcl_Interp *),
     int objc,			/* Number of arguments. */
     Tcl_Obj *const objv[])	/* Argument objects. */
 {
@@ -7131,49 +8336,1472 @@ DTraceObjCmd(
 void
 TclDTraceInfo(
     Tcl_Obj *info,
-    char **args,
-    int *argsi)
+    const char **args,
+    Tcl_Size *argsi)
 {
-    static Tcl_Obj *keys[7] = { NULL };
+    static Tcl_Obj *keys[10] = { NULL };
     Tcl_Obj **k = keys, *val;
-    int i;
+    int i = 0;
 
     if (!*k) {
-	TclNewLiteralStringObj(keys[0], "cmd");
-	TclNewLiteralStringObj(keys[1], "type");
-	TclNewLiteralStringObj(keys[2], "proc");
-	TclNewLiteralStringObj(keys[3], "file");
-	TclNewLiteralStringObj(keys[4], "lambda");
-	TclNewLiteralStringObj(keys[5], "line");
-	TclNewLiteralStringObj(keys[6], "level");
-    }
-    for (i = 0; i < 4; i++) {
+#define kini(s) TclNewLiteralStringObj(keys[i], s); i++
+	kini("cmd");	kini("type");	kini("proc");	kini("file");
+	kini("method");	kini("class");	kini("lambda");	kini("object");
+	kini("line");	kini("level");
+#undef kini
+    }
+    for (i = 0; i < 6; i++) {
 	Tcl_DictObjGet(NULL, info, *k++, &val);
 	args[i] = val ? TclGetString(val) : NULL;
     }
+
+    /*
+     * no "proc" -> use "lambda"
+     */
+
     if (!args[2]) {
 	Tcl_DictObjGet(NULL, info, *k, &val);
 	args[2] = val ? TclGetString(val) : NULL;
     }
     k++;
+
+    /*
+     * no "class" -> use "object"
+     */
+
+    if (!args[5]) {
+	Tcl_DictObjGet(NULL, info, *k, &val);
+	args[5] = val ? TclGetString(val) : NULL;
+    }
+    k++;
     for (i = 0; i < 2; i++) {
 	Tcl_DictObjGet(NULL, info, *k++, &val);
 	if (val) {
-	    TclGetIntFromObj(NULL, val, &(argsi[i]));
+	    Tcl_GetSizeIntFromObj(NULL, val, &argsi[i]);
 	} else {
 	    argsi[i] = 0;
 	}
     }
 }
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * DTraceCmdReturn --
+ *
+ *	NR callback for DTrace command return probes.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+DTraceCmdReturn(
+    void *data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    char *cmdName = TclGetString((Tcl_Obj *) data[0]);
+
+    if (TCL_DTRACE_CMD_RETURN_ENABLED()) {
+	TCL_DTRACE_CMD_RETURN(cmdName, result);
+    }
+    if (TCL_DTRACE_CMD_RESULT_ENABLED()) {
+	Tcl_Obj *r = Tcl_GetObjResult(interp);
+
+	TCL_DTRACE_CMD_RESULT(cmdName, result, TclGetString(r), r);
+    }
+    return result;
+}
 
 TCL_DTRACE_DEBUG_LOG()
 
 #endif /* USE_DTRACE */
 
 /*
+ *----------------------------------------------------------------------
+ *
+ * Tcl_NRCallObjProc --
+ *
+ *	This function calls an objProc directly while managing things properly
+ *	if it happens to be an NR objProc. It is meant to be used by extenders
+ *	that provide an NR implementation of a command, as this function
+ *	permits a trivial coding of the non-NR objProc.
+ *
+ * Results:
+ *	The return value is a standard Tcl completion code such as TCL_OK or
+ *	TCL_ERROR. A result or error message is left in interp's result.
+ *
+ * Side effects:
+ *	Depends on the objProc.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+Tcl_NRCallObjProc(
+    Tcl_Interp *interp,
+    Tcl_ObjCmdProc *objProc,
+    void *clientData,
+    Tcl_Size objc,
+    Tcl_Obj *const objv[])
+{
+    NRE_callback *rootPtr = TOP_CB(interp);
+
+    TclNRAddCallback(interp, Dispatch, objProc, clientData,
+	    INT2PTR(objc), objv);
+    return TclNRRunCallbacks(interp, TCL_OK, rootPtr);
+}
+
+static int
+wrapperNRObjProc(
+    void *clientData,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    CmdWrapperInfo *info = (CmdWrapperInfo *) clientData;
+    clientData = info->clientData;
+    Tcl_ObjCmdProc2 *proc = info->proc;
+    Tcl_Free(info);
+    if (objc < 0) {
+	objc = -1;
+    }
+    return proc(clientData, interp, (Tcl_Size) objc, objv);
+}
+
+int
+Tcl_NRCallObjProc2(
+    Tcl_Interp *interp,
+    Tcl_ObjCmdProc2 *objProc,
+    void *clientData,
+    Tcl_Size objc,
+    Tcl_Obj *const objv[])
+{
+    if (objc > INT_MAX) {
+	Tcl_WrongNumArgs(interp, 1, objv, "?args?");
+	return TCL_ERROR;
+    }
+
+    NRE_callback *rootPtr = TOP_CB(interp);
+    CmdWrapperInfo *info = (CmdWrapperInfo *)Tcl_Alloc(sizeof(CmdWrapperInfo));
+    info->clientData = clientData;
+    info->proc = objProc;
+
+    TclNRAddCallback(interp, Dispatch, wrapperNRObjProc, info,
+	    INT2PTR(objc), objv);
+    return TclNRRunCallbacks(interp, TCL_OK, rootPtr);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Tcl_NRCreateCommand --
+ *
+ *	Define a new NRE-enabled object-based command in a command table.
+ *
+ * Results:
+ *	The return value is a token for the command, which can be used in
+ *	future calls to Tcl_GetCommandName.
+ *
+ * Side effects:
+ *	If no command named "cmdName" already exists for interp, one is
+ *	created. Otherwise, if a command does exist, then if the object-based
+ *	Tcl_ObjCmdProc is InvokeStringCommand, we assume Tcl_CreateCommand
+ *	was called previously for the same command and just set its
+ *	Tcl_ObjCmdProc to the argument "proc"; otherwise, we delete the old
+ *	command.
+ *
+ *	In the future, during bytecode evaluation when "cmdName" is seen as
+ *	the name of a command by Tcl_EvalObj or Tcl_Eval, the object-based
+ *	Tcl_ObjCmdProc proc will be called. When the command is deleted from
+ *	the table, deleteProc will be called. See the manual entry for details
+ *	on the calling sequence.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+cmdWrapperNreProc(
+    void *clientData,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    CmdWrapperInfo *info = (CmdWrapperInfo *) clientData;
+
+    if (objc < 0) {
+	objc = -1;
+    }
+    return info->nreProc(info->clientData, interp, objc, objv);
+}
+
+Tcl_Command
+Tcl_NRCreateCommand2(
+    Tcl_Interp *interp,		/* Token for command interpreter (returned by
+				 * previous call to Tcl_CreateInterp). */
+    const char *cmdName,	/* Name of command. If it contains namespace
+				 * qualifiers, the new command is put in the
+				 * specified namespace; otherwise it is put in
+				 * the global namespace. */
+    Tcl_ObjCmdProc2 *proc,	/* Object-based function to associate with
+				 * name, provides direct access for direct
+				 * calls. */
+    Tcl_ObjCmdProc2 *nreProc,	/* Object-based function to associate with
+				 * name, provides NR implementation */
+    void *clientData,		/* Arbitrary value to pass to object
+				 * function. */
+    Tcl_CmdDeleteProc *deleteProc)
+				/* If not NULL, gives a function to call when
+				 * this command is deleted. */
+{
+    CmdWrapperInfo *info = (CmdWrapperInfo *)Tcl_Alloc(sizeof(CmdWrapperInfo));
+
+    info->proc = proc;
+    info->clientData = clientData;
+    info->nreProc = nreProc;
+    info->deleteProc = deleteProc;
+    info->deleteData = clientData;
+    return Tcl_NRCreateCommand(interp, cmdName,
+	    (proc ? cmdWrapperProc : NULL),
+	    (nreProc ? cmdWrapperNreProc : NULL),
+	    info, cmdWrapperDeleteProc);
+}
+
+Tcl_Command
+Tcl_NRCreateCommand(
+    Tcl_Interp *interp,		/* Token for command interpreter (returned by
+				 * previous call to Tcl_CreateInterp). */
+    const char *cmdName,	/* Name of command. If it contains namespace
+				 * qualifiers, the new command is put in the
+				 * specified namespace; otherwise it is put in
+				 * the global namespace. */
+    Tcl_ObjCmdProc *proc,	/* Object-based function to associate with
+				 * name, provides direct access for direct
+				 * calls. */
+    Tcl_ObjCmdProc *nreProc,	/* Object-based function to associate with
+				 * name, provides NR implementation */
+    void *clientData,		/* Arbitrary value to pass to object
+				 * function. */
+    Tcl_CmdDeleteProc *deleteProc)
+				/* If not NULL, gives a function to call when
+				 * this command is deleted. */
+{
+    Command *cmdPtr = (Command *)
+	    Tcl_CreateObjCommand(interp, cmdName, proc, clientData,
+		    deleteProc);
+
+    cmdPtr->nreProc = nreProc;
+    return (Tcl_Command) cmdPtr;
+}
+
+Tcl_Command
+TclNRCreateCommandInNs(
+    Tcl_Interp *interp,
+    const char *cmdName,
+    Tcl_Namespace *nsPtr,
+    Tcl_ObjCmdProc *proc,
+    Tcl_ObjCmdProc *nreProc,
+    void *clientData,
+    Tcl_CmdDeleteProc *deleteProc)
+{
+    Command *cmdPtr = (Command *)
+	    TclCreateObjCommandInNs(interp, cmdName, nsPtr, proc, clientData,
+		    deleteProc);
+
+    cmdPtr->nreProc = nreProc;
+    return (Tcl_Command) cmdPtr;
+}
+
+/****************************************************************************
+ * Stuff for the public api
+ ****************************************************************************/
+
+int
+Tcl_NREvalObj(
+    Tcl_Interp *interp,
+    Tcl_Obj *objPtr,
+    int flags)
+{
+    return TclNREvalObjEx(interp, objPtr, flags, NULL, INT_MIN);
+}
+
+int
+Tcl_NREvalObjv(
+    Tcl_Interp *interp,		/* Interpreter in which to evaluate the
+				 * command. Also used for error reporting. */
+    Tcl_Size objc,		/* Number of words in command. */
+    Tcl_Obj *const objv[],	/* An array of pointers to objects that are
+				 * the words that make up the command. */
+    int flags)			/* Collection of OR-ed bits that control the
+				 * evaluation of the script. Only
+				 * TCL_EVAL_GLOBAL, TCL_EVAL_INVOKE and
+				 * TCL_EVAL_NOERR are currently supported. */
+{
+    return TclNREvalObjv(interp, objc, objv, flags, NULL);
+}
+
+int
+Tcl_NRCmdSwap(
+    Tcl_Interp *interp,
+    Tcl_Command cmd,
+    Tcl_Size objc,
+    Tcl_Obj *const objv[],
+    int flags)
+{
+    return TclNREvalObjv(interp, objc, objv, flags|TCL_EVAL_NOERR,
+	    (Command *) cmd);
+}
+
+/*****************************************************************************
+ * Tailcall related code
+ *****************************************************************************
+ *
+ * The steps of the tailcall dance are as follows:
+ *
+ *   1. when [tailcall] is invoked, it stores the corresponding callback in
+ *      the current CallFrame and returns TCL_RETURN
+ *   2. when the CallFrame is popped, it calls TclSetTailcall to store the
+ *      callback in the proper NRCommand callback - the spot where the command
+ *      that pushed the CallFrame is completely cleaned up
+ *   3. when the NRCommand callback runs, it schedules the tailcall callback
+ *      to run immediately after it returns
+ *
+ *   One delicate point is to properly define the NRCommand where the tailcall
+ *   will execute. There are functions whose purpose is to help define the
+ *   precise spot:
+ *     TclMarkTailcall: if the NEXT command to be pushed tailcalls, execution
+ *	 should continue right here
+ *     TclSkipTailcall:  if the NEXT command to be pushed tailcalls, execution
+ *	 should continue after the CURRENT command is fully returned ("skip
+ *	 the next command: we are redirecting to it, tailcalls should run
+ *	 after WE return")
+ *     TclPushTailcallPoint: the search for a tailcalling spot cannot traverse
+ *	 this point. This is special for OO, as some of the oo constructs
+ *	 that behave like commands may not push an NRCommand callback.
+ */
+
+void
+TclMarkTailcall(
+    Tcl_Interp *interp)
+{
+    Interp *iPtr = (Interp *) interp;
+
+    if (iPtr->deferredCallbacks == NULL) {
+	TclNRAddCallback(interp, NRCommand, NULL, NULL,
+		NULL, NULL);
+	iPtr->deferredCallbacks = TOP_CB(interp);
+    }
+}
+
+void
+TclSkipTailcall(
+    Tcl_Interp *interp)
+{
+    Interp *iPtr = (Interp *) interp;
+
+    TclMarkTailcall(interp);
+    iPtr->deferredCallbacks->data[1] = INT2PTR(1);
+}
+
+void
+TclPushTailcallPoint(
+    Tcl_Interp *interp)
+{
+    TclNRAddCallback(interp, NRCommand, NULL, NULL, NULL, NULL);
+    ((Interp *) interp)->numLevels++;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclSetTailcall --
+ *
+ *	Splice a tailcall command in the proper spot of the NRE callback
+ *	stack, so that it runs at the right time.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TclSetTailcall(
+    Tcl_Interp *interp,
+    Tcl_Obj *listPtr)
+{
+    /*
+     * Find the splicing spot: right before the NRCommand of the thing
+     * being tailcalled. Note that we skip NRCommands marked by a 1 in data[1]
+     * (used by command redirectors).
+     */
+
+    NRE_callback *runPtr;
+
+    for (runPtr = TOP_CB(interp); runPtr; runPtr = runPtr->nextPtr) {
+	if (((runPtr->procPtr) == NRCommand) && !runPtr->data[1]) {
+	    break;
+	}
+    }
+    if (!runPtr) {
+	Tcl_Panic("tailcall cannot find the right splicing spot: should not happen!");
+    }
+    runPtr->data[1] = listPtr;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclNRTailcallObjCmd --
+ *
+ *	Prepare the tailcall as a list and store it in the current
+ *	varFrame. When the frame is later popped the tailcall will be spliced
+ *	at the proper place.
+ *
+ * Results:
+ *	The first NRCommand callback that is not marked to be skipped is
+ *	updated so that its data[1] field contains the tailcall list.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclNRTailcallObjCmd(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    Interp *iPtr = (Interp *) interp;
+
+    if (objc < 1) {
+	Tcl_WrongNumArgs(interp, 1, objv, "?command? ?arg ...?");
+	return TCL_ERROR;
+    }
+
+    if (!(iPtr->varFramePtr->isProcCallFrame & 1)) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"tailcall can only be called from a proc, lambda or method", TCL_INDEX_NONE));
+	Tcl_SetErrorCode(interp, "TCL", "TAILCALL", "ILLEGAL", (char *)NULL);
+	return TCL_ERROR;
+    }
+
+    /*
+     * Invocation without args just clears a scheduled tailcall; invocation
+     * with an argument replaces any previously scheduled tailcall.
+     */
+
+    if (iPtr->varFramePtr->tailcallPtr) {
+	Tcl_DecrRefCount(iPtr->varFramePtr->tailcallPtr);
+	iPtr->varFramePtr->tailcallPtr = NULL;
+    }
+
+    /*
+     * Create the callback to actually evaluate the tailcalled
+     * command, then set it in the varFrame so that PopCallFrame can use it
+     * at the proper time.
+     */
+
+    if (objc > 1) {
+	Tcl_Obj *listPtr;
+	Tcl_Namespace *nsPtr = (Tcl_Namespace *) iPtr->varFramePtr->nsPtr;
+
+	/*
+	 * The tailcall data is in a Tcl list: the first element is the
+	 * namespace, the rest the command to be tailcalled.
+	 */
+
+	listPtr = Tcl_NewListObj(objc, objv);
+	TclListObjSetElement(NULL, listPtr, 0, TclNewNamespaceObj(nsPtr));
+
+	iPtr->varFramePtr->tailcallPtr = listPtr;
+    }
+    return TCL_RETURN;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclNRTailcallEval --
+ *
+ *	This NREcallback actually causes the tailcall to be evaluated.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclNRTailcallEval(
+    void *data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    Interp *iPtr = (Interp *) interp;
+    Tcl_Obj *listPtr = (Tcl_Obj *)data[0], *nsObjPtr;
+    Tcl_Namespace *nsPtr;
+    Tcl_Size objc;
+    Tcl_Obj **objv;
+
+    TclListObjGetElements(interp, listPtr, &objc, &objv);
+    nsObjPtr = objv[0];
+
+    if (result == TCL_OK) {
+	result = TclGetNamespaceFromObj(interp, nsObjPtr, &nsPtr);
+    }
+
+    if (result != TCL_OK) {
+	/*
+	 * Tailcall execution was preempted, eg by an intervening catch or by
+	 * a now-gone namespace: cleanup and return.
+	 */
+
+	Tcl_DecrRefCount(listPtr);
+	return result;
+    }
+
+    /*
+     * Perform the tailcall
+     */
+
+    TclMarkTailcall(interp);
+    TclNRAddCallback(interp, TclNRReleaseValues, listPtr, NULL, NULL,NULL);
+    iPtr->lookupNsPtr = (Namespace *) nsPtr;
+    return TclNREvalObjv(interp, objc - 1, objv + 1, 0, NULL);
+}
+
+int
+TclNRReleaseValues(
+    void *data[],
+    TCL_UNUSED(Tcl_Interp *),
+    int result)
+{
+    int i = 0;
+
+    while (i < 4) {
+	if (data[i]) {
+	    Tcl_DecrRefCount((Tcl_Obj *) data[i]);
+	} else {
+	    break;
+	}
+	i++;
+    }
+    return result;
+}
+
+void
+Tcl_NRAddCallback(
+    Tcl_Interp *interp,
+    Tcl_NRPostProc *postProcPtr,
+    void *data0,
+    void *data1,
+    void *data2,
+    void *data3)
+{
+    if (!(postProcPtr)) {
+	Tcl_Panic("Adding a callback without an objProc?!");
+    }
+    TclNRAddCallback(interp, postProcPtr, data0, data1, data2, data3);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclNRCoroutineObjCmd -- (and friends)
+ *
+ *	This object-based function is invoked to process the "coroutine" Tcl
+ *	command. It is heavily based on "apply".
+ *
+ * Results:
+ *	A standard Tcl object result value.
+ *
+ * Side effects:
+ *	A new procedure gets created.
+ *
+ * ** FIRST EXPERIMENTAL IMPLEMENTATION **
+ *
+ * It is fairly amateurish and not up to our standards - mainly in terms of
+ * error messages and [info] interaction. Just to test the infrastructure in
+ * teov and tebc.
+ *----------------------------------------------------------------------
+ */
+
+#define iPtr ((Interp *) interp)
+
+int
+TclNRYieldObjCmd(
+    void *clientData,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    CoroutineData *corPtr = iPtr->execEnvPtr->corPtr;
+
+    if (objc > 2) {
+	Tcl_WrongNumArgs(interp, 1, objv, "?returnValue?");
+	return TCL_ERROR;
+    }
+
+    if (!corPtr) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"yield can only be called in a coroutine", TCL_INDEX_NONE));
+	Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "ILLEGAL_YIELD", (char *)NULL);
+	return TCL_ERROR;
+    }
+
+    if (objc == 2) {
+	Tcl_SetObjResult(interp, objv[1]);
+    }
+
+    NRE_ASSERT(!COR_IS_SUSPENDED(corPtr));
+    TclNRAddCallback(interp, TclNRCoroutineActivateCallback, corPtr,
+	    clientData, NULL, NULL);
+    return TCL_OK;
+}
+
+int
+TclNRYieldToObjCmd(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    CoroutineData *corPtr = iPtr->execEnvPtr->corPtr;
+    Tcl_Namespace *nsPtr = TclGetCurrentNamespace(interp);
+    Tcl_Obj *listPtr;
+
+    if (objc < 2) {
+	Tcl_WrongNumArgs(interp, 1, objv, "command ?arg ...?");
+	return TCL_ERROR;
+    }
+
+    if (!corPtr) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"yieldto can only be called in a coroutine", TCL_INDEX_NONE));
+	Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "ILLEGAL_YIELD", (char *)NULL);
+	return TCL_ERROR;
+    }
+
+    if (((Namespace *) nsPtr)->flags & NS_DYING) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"yieldto called in deleted namespace", TCL_INDEX_NONE));
+	Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "YIELDTO_IN_DELETED",
+		(char *)NULL);
+	return TCL_ERROR;
+    }
+
+    /*
+     * Add the tailcall in the caller env, then just yield.
+     *
+     * This is essentially code from TclNRTailcallObjCmd
+     */
+
+    listPtr = Tcl_NewListObj(objc, objv);
+    TclListObjSetElement(NULL, listPtr, 0, TclNewNamespaceObj(nsPtr));
+
+    /*
+     * Add the callback in the caller's env, then instruct TEBC to yield.
+     */
+
+    iPtr->execEnvPtr = corPtr->callerEEPtr;
+    /* Not calling Tcl_IncrRefCount(listPtr) here because listPtr is private */
+    TclSetTailcall(interp, listPtr);
+    corPtr->yieldPtr = listPtr;
+    iPtr->execEnvPtr = corPtr->eePtr;
+
+    return TclNRYieldObjCmd(CORO_ACTIVATE_YIELDM, interp, 1, objv);
+}
+
+static int
+RewindCoroutineCallback(
+    void *data[],
+    Tcl_Interp *interp,
+    TCL_UNUSED(int) /*result*/)
+{
+    return Tcl_RestoreInterpState(interp, (Tcl_InterpState)data[0]);
+}
+
+static int
+RewindCoroutine(
+    CoroutineData *corPtr,
+    int result)
+{
+    Tcl_Interp *interp = corPtr->eePtr->interp;
+    Tcl_InterpState state = Tcl_SaveInterpState(interp, result);
+
+    NRE_ASSERT(COR_IS_SUSPENDED(corPtr));
+    NRE_ASSERT(corPtr->eePtr != NULL);
+    NRE_ASSERT(corPtr->eePtr != iPtr->execEnvPtr);
+
+    corPtr->eePtr->rewind = 1;
+    TclNRAddCallback(interp, RewindCoroutineCallback, state,
+	    NULL, NULL, NULL);
+    return TclNRInterpCoroutine(corPtr, interp, 0, NULL);
+}
+
+static void
+DeleteCoroutine(
+    void *clientData)
+{
+    CoroutineData *corPtr = (CoroutineData *)clientData;
+    Tcl_Interp *interp = corPtr->eePtr->interp;
+    NRE_callback *rootPtr = TOP_CB(interp);
+
+    if (COR_IS_SUSPENDED(corPtr)) {
+	TclNRRunCallbacks(interp, RewindCoroutine(corPtr,TCL_OK), rootPtr);
+    }
+}
+
+static int
+NRCoroutineCallerCallback(
+    void *data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    CoroutineData *corPtr = (CoroutineData *)data[0];
+    Command *cmdPtr = corPtr->cmdPtr;
+
+    /*
+     * This is the last callback in the caller execEnv, right before switching
+     * to the coroutine's
+     */
+
+    NRE_ASSERT(iPtr->execEnvPtr == corPtr->callerEEPtr);
+
+    if (!corPtr->eePtr) {
+	/*
+	 * The execEnv was wound down but not deleted for our sake. We finish
+	 * the job here. The caller context has already been restored.
+	 */
+
+	NRE_ASSERT(iPtr->varFramePtr == corPtr->caller.varFramePtr);
+	NRE_ASSERT(iPtr->framePtr == corPtr->caller.framePtr);
+	NRE_ASSERT(iPtr->cmdFramePtr == corPtr->caller.cmdFramePtr);
+	Tcl_Free(corPtr);
+	return result;
+    }
+
+    NRE_ASSERT(COR_IS_SUSPENDED(corPtr));
+    SAVE_CONTEXT(corPtr->running);
+    RESTORE_CONTEXT(corPtr->caller);
+
+    if (cmdPtr->flags & CMD_DYING) {
+	/*
+	 * The command was deleted while it was running: wind down the
+	 * execEnv, this will do the complete cleanup. RewindCoroutine will
+	 * restore both the caller's context and interp state.
+	 */
+
+	return RewindCoroutine(corPtr, result);
+    }
+
+    return result;
+}
+
+static int
+NRCoroutineExitCallback(
+    void *data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    CoroutineData *corPtr = (CoroutineData *)data[0];
+    Command *cmdPtr = corPtr->cmdPtr;
+
+    /*
+     * This runs at the bottom of the Coroutine's execEnv: it will be executed
+     * when the coroutine returns or is wound down, but not when it yields. It
+     * deletes the coroutine and restores the caller's environment.
+     */
+
+    NRE_ASSERT(interp == corPtr->eePtr->interp);
+    NRE_ASSERT(TOP_CB(interp) == NULL);
+    NRE_ASSERT(iPtr->execEnvPtr == corPtr->eePtr);
+    NRE_ASSERT(!COR_IS_SUSPENDED(corPtr));
+    NRE_ASSERT((corPtr->callerEEPtr->callbackPtr->procPtr == NRCoroutineCallerCallback));
+
+    cmdPtr->deleteProc = NULL;
+    Tcl_DeleteCommandFromToken(interp, (Tcl_Command) cmdPtr);
+    TclCleanupCommandMacro(cmdPtr);
+
+    corPtr->eePtr->corPtr = NULL;
+    TclDeleteExecEnv(corPtr->eePtr);
+    corPtr->eePtr = NULL;
+
+    corPtr->stackLevel = NULL;
+
+    /*
+     * #280.
+     * Drop the coroutine-owned copy of the lineLABCPtr hashtable for literal
+     * command arguments in bytecode.
+     */
+
+    Tcl_DeleteHashTable(corPtr->lineLABCPtr);
+    Tcl_Free(corPtr->lineLABCPtr);
+    corPtr->lineLABCPtr = NULL;
+
+    RESTORE_CONTEXT(corPtr->caller);
+    iPtr->execEnvPtr = corPtr->callerEEPtr;
+    iPtr->numLevels++;
+
+    return result;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclNRCoroutineActivateCallback --
+ *
+ *	This is the workhorse for coroutines: it implements both yield and
+ *	resume.
+ *
+ *	It is important that both be implemented in the same callback: the
+ *	detection of the impossibility to suspend due to a busy C-stack relies
+ *	on the precise position of a local variable in the stack. We do not
+ *	want the compiler to play tricks on us, either by moving things around
+ *	or inlining.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclNRCoroutineActivateCallback(
+    void *data[],
+    Tcl_Interp *interp,
+    TCL_UNUSED(int) /*result*/)
+{
+    CoroutineData *corPtr = (CoroutineData *)data[0];
+    void *stackLevel = TclGetCStackPtr();
+
+    if (!corPtr->stackLevel) {
+	/*
+	 * -- Coroutine is suspended --
+	 * Push the callback to restore the caller's context on yield or
+	 * return.
+	 */
+
+	TclNRAddCallback(interp, NRCoroutineCallerCallback, corPtr,
+		NULL, NULL, NULL);
+
+	/*
+	 * Record the stackLevel at which the resume is happening, then swap
+	 * the interp's environment to make it suitable to run this coroutine.
+	 */
+
+	corPtr->stackLevel = stackLevel;
+	Tcl_Size numLevels = corPtr->auxNumLevels;
+	corPtr->auxNumLevels = iPtr->numLevels;
+
+	SAVE_CONTEXT(corPtr->caller);
+	corPtr->callerEEPtr = iPtr->execEnvPtr;
+	RESTORE_CONTEXT(corPtr->running);
+	iPtr->execEnvPtr = corPtr->eePtr;
+	iPtr->numLevels += numLevels;
+    } else {
+	/*
+	 * Coroutine is active: yield
+	 */
+
+	if (corPtr->stackLevel != stackLevel) {
+	    NRE_callback *runPtr;
+
+	    iPtr->execEnvPtr = corPtr->callerEEPtr;
+	    if (corPtr->yieldPtr) {
+		for (runPtr = TOP_CB(interp); runPtr; runPtr = runPtr->nextPtr) {
+		    if (runPtr->data[1] == corPtr->yieldPtr) {
+			Tcl_DecrRefCount((Tcl_Obj *)runPtr->data[1]);
+			runPtr->data[1] = NULL;
+			corPtr->yieldPtr = NULL;
+			break;
+		    }
+		}
+	    }
+	    iPtr->execEnvPtr = corPtr->eePtr;
+
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "cannot yield: C stack busy", TCL_INDEX_NONE));
+	    Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "CANT_YIELD",
+		    (char *)NULL);
+	    return TCL_ERROR;
+	}
+
+	void *type = data[1];
+	if (type == CORO_ACTIVATE_YIELD) {
+	    corPtr->nargs = COROUTINE_ARGUMENTS_SINGLE_OPTIONAL;
+	} else if (type == CORO_ACTIVATE_YIELDM) {
+	    corPtr->nargs = COROUTINE_ARGUMENTS_ARBITRARY;
+	} else {
+	    Tcl_Panic("Yield received an option which is not implemented");
+	}
+
+	corPtr->yieldPtr = NULL;
+	corPtr->stackLevel = NULL;
+
+	Tcl_Size numLevels = iPtr->numLevels;
+	iPtr->numLevels = corPtr->auxNumLevels;
+	corPtr->auxNumLevels = numLevels - corPtr->auxNumLevels;
+
+	iPtr->execEnvPtr = corPtr->callerEEPtr;
+    }
+
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * CoroTypeObjCmd --
+ *
+ *	Implementation of [::tcl::unsupported::corotype] command.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+CoroTypeObjCmd(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    Command *cmdPtr;
+    CoroutineData *corPtr;
+
+    if (objc != 2) {
+	Tcl_WrongNumArgs(interp, 1, objv, "coroName");
+	return TCL_ERROR;
+    }
+
+    /*
+     * Look up the coroutine.
+     */
+
+    cmdPtr = (Command *) Tcl_GetCommandFromObj(interp, objv[1]);
+    if ((!cmdPtr) || (cmdPtr->nreProc != TclNRInterpCoroutine)) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"can only get coroutine type of a coroutine", TCL_INDEX_NONE));
+	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "COROUTINE",
+		TclGetString(objv[1]), (char *)NULL);
+	return TCL_ERROR;
+    }
+
+    /*
+     * An active coroutine is "active". Can't tell what it might do in the
+     * future.
+     */
+
+    corPtr = (CoroutineData *)cmdPtr->objClientData;
+    if (!COR_IS_SUSPENDED(corPtr)) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj("active", TCL_INDEX_NONE));
+	return TCL_OK;
+    }
+
+    /*
+     * Inactive coroutines are classified by the (effective) command used to
+     * suspend them, which matters when you're injecting a probe.
+     */
+
+    switch (corPtr->nargs) {
+    case COROUTINE_ARGUMENTS_SINGLE_OPTIONAL:
+	Tcl_SetObjResult(interp, Tcl_NewStringObj("yield", TCL_INDEX_NONE));
+	return TCL_OK;
+    case COROUTINE_ARGUMENTS_ARBITRARY:
+	Tcl_SetObjResult(interp, Tcl_NewStringObj("yieldto", TCL_INDEX_NONE));
+	return TCL_OK;
+    default:
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"unknown coroutine type", TCL_INDEX_NONE));
+	Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "BAD_TYPE", (char *)NULL);
+	return TCL_ERROR;
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclNRCoroInjectObjCmd, TclNRCoroProbeObjCmd --
+ *
+ *	Implementation of [coroinject] and [coroprobe] commands.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static inline CoroutineData *
+GetCoroutineFromObj(
+    Tcl_Interp *interp,
+    Tcl_Obj *objPtr,
+    const char *errMsg)
+{
+    /*
+     * How to get a coroutine from its handle.
+     */
+
+    Command *cmdPtr = (Command *) Tcl_GetCommandFromObj(interp, objPtr);
+
+    if ((!cmdPtr) || (cmdPtr->nreProc != TclNRInterpCoroutine)) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(errMsg, TCL_INDEX_NONE));
+	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "COROUTINE",
+		TclGetString(objPtr), (char *)NULL);
+	return NULL;
+    }
+    return (CoroutineData *)cmdPtr->objClientData;
+}
+
+static int
+TclNRCoroInjectObjCmd(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    CoroutineData *corPtr;
+
+    /*
+     * Usage more or less like tailcall:
+     *   coroinject coroName cmd ?arg1 arg2 ...?
+     */
+
+    if (objc < 3) {
+	Tcl_WrongNumArgs(interp, 1, objv, "coroName cmd ?arg1 arg2 ...?");
+	return TCL_ERROR;
+    }
+
+    corPtr = GetCoroutineFromObj(interp, objv[1],
+	    "can only inject a command into a coroutine");
+    if (!corPtr) {
+	return TCL_ERROR;
+    }
+    if (!COR_IS_SUSPENDED(corPtr)) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"can only inject a command into a suspended coroutine", TCL_INDEX_NONE));
+	Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "ACTIVE", (char *)NULL);
+	return TCL_ERROR;
+    }
+
+    /*
+     * Add the callback to the coro's execEnv, so that it is the first thing
+     * to happen when the coro is resumed.
+     */
+
+    ExecEnv *savedEEPtr = iPtr->execEnvPtr;
+    iPtr->execEnvPtr = corPtr->eePtr;
+    TclNRAddCallback(interp, InjectHandler, corPtr,
+	    Tcl_NewListObj(objc - 2, objv + 2), INT2PTR(corPtr->nargs), NULL);
+    iPtr->execEnvPtr = savedEEPtr;
+
+    return TCL_OK;
+}
+
+static int
+TclNRCoroProbeObjCmd(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    CoroutineData *corPtr;
+
+    /*
+     * Usage more or less like tailcall:
+     *   coroprobe coroName cmd ?arg1 arg2 ...?
+     */
+
+    if (objc < 3) {
+	Tcl_WrongNumArgs(interp, 1, objv, "coroName cmd ?arg1 arg2 ...?");
+	return TCL_ERROR;
+    }
+
+    corPtr = GetCoroutineFromObj(interp, objv[1],
+	    "can only inject a probe command into a coroutine");
+    if (!corPtr) {
+	return TCL_ERROR;
+    }
+    if (!COR_IS_SUSPENDED(corPtr)) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"can only inject a probe command into a suspended coroutine",
+		TCL_INDEX_NONE));
+	Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "ACTIVE", (char *)NULL);
+	return TCL_ERROR;
+    }
+
+    /*
+     * Add the callback to the coro's execEnv, so that it is the first thing
+     * to happen when the coro is resumed.
+     */
+
+    ExecEnv *savedEEPtr = iPtr->execEnvPtr;
+    iPtr->execEnvPtr = corPtr->eePtr;
+    TclNRAddCallback(interp, InjectHandler, corPtr,
+	    Tcl_NewListObj(objc - 2, objv + 2), INT2PTR(corPtr->nargs), corPtr);
+    iPtr->execEnvPtr = savedEEPtr;
+
+    /*
+     * Now we immediately transfer control to the coroutine to run our probe.
+     * TRICKY STUFF copied from the [yield] implementation.
+     *
+     * Push the callback to restore the caller's context on yield back.
+     */
+
+    TclNRAddCallback(interp, NRCoroutineCallerCallback, corPtr,
+	    NULL, NULL, NULL);
+
+    /*
+     * Record the stackLevel at which the resume is happening, then swap
+     * the interp's environment to make it suitable to run this coroutine.
+     */
+
+    corPtr->stackLevel = &corPtr;
+    Tcl_Size numLevels = corPtr->auxNumLevels;
+    corPtr->auxNumLevels = iPtr->numLevels;
+
+    /*
+     * Do the actual stack swap.
+     */
+
+    SAVE_CONTEXT(corPtr->caller);
+    corPtr->callerEEPtr = iPtr->execEnvPtr;
+    RESTORE_CONTEXT(corPtr->running);
+    iPtr->execEnvPtr = corPtr->eePtr;
+    iPtr->numLevels += numLevels;
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * InjectHandler, InjectHandlerPostProc --
+ *
+ *	Part of the implementation of [coroinject] and [coroprobe]. These are
+ *	run inside the context of the coroutine being injected/probed into.
+ *
+ *	InjectHandler runs a script (possibly adding arguments) in the context
+ *	of the coroutine. The script is specified as a one-shot list (with
+ *	reference count equal to 1) in data[1]. This function also arranges
+ *	for InjectHandlerPostProc to be the part that runs after the script
+ *	completes.
+ *
+ *	InjectHandlerPostProc cleans up after InjectHandler (deleting the
+ *	list) and, for the [coroprobe] command *only*, yields back to the
+ *	caller context (i.e., where [coroprobe] was run).
+ *s
+ *----------------------------------------------------------------------
+ */
+
+static int
+InjectHandler(
+    void *data[],
+    Tcl_Interp *interp,
+    TCL_UNUSED(int) /*result*/)
+{
+    CoroutineData *corPtr = (CoroutineData *)data[0];
+    Tcl_Obj *listPtr = (Tcl_Obj *)data[1];
+    Tcl_Size nargs = PTR2INT(data[2]);
+    void *isProbe = data[3];
+    Tcl_Size objc;
+    Tcl_Obj **objv;
+
+    if (!isProbe) {
+	/*
+	 * If this is [coroinject], add the extra arguments now.
+	 */
+
+	if (nargs == COROUTINE_ARGUMENTS_SINGLE_OPTIONAL) {
+	    Tcl_ListObjAppendElement(NULL, listPtr,
+		    Tcl_NewStringObj("yield", TCL_INDEX_NONE));
+	} else if (nargs == COROUTINE_ARGUMENTS_ARBITRARY) {
+	    Tcl_ListObjAppendElement(NULL, listPtr,
+		    Tcl_NewStringObj("yieldto", TCL_INDEX_NONE));
+	} else {
+	    /*
+	     * I don't think this is reachable...
+	     */
+	    Tcl_Obj *nargsObj;
+	    TclNewIndexObj(nargsObj, nargs);
+	    Tcl_ListObjAppendElement(NULL, listPtr, nargsObj);
+	}
+	Tcl_ListObjAppendElement(NULL, listPtr, Tcl_GetObjResult(interp));
+    }
+
+    /*
+     * Call the user's script; we're in the right place.
+     */
+
+    Tcl_IncrRefCount(listPtr);
+    TclMarkTailcall(interp);
+    TclNRAddCallback(interp, InjectHandlerPostCall, corPtr, listPtr,
+	    INT2PTR(nargs), isProbe);
+    TclListObjGetElements(NULL, listPtr, &objc, &objv);
+    return TclNREvalObjv(interp, objc, objv, 0, NULL);
+}
+
+static int
+InjectHandlerPostCall(
+    void *data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    CoroutineData *corPtr = (CoroutineData *)data[0];
+    Tcl_Obj *listPtr = (Tcl_Obj *)data[1];
+    Tcl_Size nargs = PTR2INT(data[2]);
+    void *isProbe = data[3];
+
+    /*
+     * Delete the command words for what we just executed.
+     */
+
+    Tcl_DecrRefCount(listPtr);
+
+    /*
+     * If we were doing a probe, splice ourselves back out of the stack
+     * cleanly here. General injection should instead just look after itself.
+     *
+     * Code from guts of [yield] implementation.
+     */
+
+    if (isProbe) {
+	if (result == TCL_ERROR) {
+	    Tcl_AddErrorInfo(interp,
+		    "\n    (injected coroutine probe command)");
+	}
+	corPtr->nargs = nargs;
+	corPtr->stackLevel = NULL;
+	Tcl_Size numLevels = iPtr->numLevels;
+	iPtr->numLevels = corPtr->auxNumLevels;
+	corPtr->auxNumLevels = numLevels - corPtr->auxNumLevels;
+	iPtr->execEnvPtr = corPtr->callerEEPtr;
+    }
+    return result;
+}
+
+int
+TclNRInterpCoroutine(
+    void *clientData,
+    Tcl_Interp *interp,		/* Current interpreter. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Argument objects. */
+{
+    CoroutineData *corPtr = (CoroutineData *)clientData;
+
+    if (!COR_IS_SUSPENDED(corPtr)) {
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"coroutine \"%s\" is already running",
+		TclGetString(objv[0])));
+	Tcl_SetErrorCode(interp, "TCL", "COROUTINE", "BUSY", (char *)NULL);
+	return TCL_ERROR;
+    }
+
+    /*
+     * Parse all the arguments to work out what to feed as the result of the
+     * [yield]. TRICKY POINT: objc==0 happens here! It occurs when a coroutine
+     * is deleted!
+     */
+
+    switch (corPtr->nargs) {
+    case COROUTINE_ARGUMENTS_SINGLE_OPTIONAL:
+	if (objc == 2) {
+	    Tcl_SetObjResult(interp, objv[1]);
+	} else if (objc > 2) {
+	    Tcl_WrongNumArgs(interp, 1, objv, "?arg?");
+	    return TCL_ERROR;
+	}
+	break;
+    default:
+	if (corPtr->nargs + 1 != objc) {
+	    Tcl_SetObjResult(interp,
+		    Tcl_NewStringObj("wrong coro nargs; how did we get here? "
+		    "not implemented!", TCL_INDEX_NONE));
+	    Tcl_SetErrorCode(interp, "TCL", "WRONGARGS", (char *)NULL);
+	    return TCL_ERROR;
+	}
+	/* fallthrough */
+    case COROUTINE_ARGUMENTS_ARBITRARY:
+	if (objc > 1) {
+	    Tcl_SetObjResult(interp, Tcl_NewListObj(objc - 1, objv + 1));
+	}
+	break;
+    }
+
+    TclNRAddCallback(interp, TclNRCoroutineActivateCallback, corPtr,
+	    NULL, NULL, NULL);
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclNRCoroutineObjCmd --
+ *
+ *	Implementation of [coroutine] command; see documentation for
+ *	description of what this does.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclNRCoroutineObjCmd(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,		/* Current interpreter. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Argument objects. */
+{
+    Command *cmdPtr;
+    CoroutineData *corPtr;
+    const char *procName, *simpleName;
+    Namespace *nsPtr, *altNsPtr, *cxtNsPtr,
+	*inNsPtr = (Namespace *)TclGetCurrentNamespace(interp);
+    Namespace *lookupNsPtr = iPtr->varFramePtr->nsPtr;
+
+    if (objc < 3) {
+	Tcl_WrongNumArgs(interp, 1, objv, "name cmd ?arg ...?");
+	return TCL_ERROR;
+    }
+
+    procName = TclGetString(objv[1]);
+    TclGetNamespaceForQualName(interp, procName, inNsPtr, 0,
+	    &nsPtr, &altNsPtr, &cxtNsPtr, &simpleName);
+
+    if (nsPtr == NULL) {
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"can't create procedure \"%s\": unknown namespace",
+		procName));
+	Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "NAMESPACE", (char *)NULL);
+	return TCL_ERROR;
+    }
+    if (simpleName == NULL) {
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"can't create procedure \"%s\": bad procedure name",
+		procName));
+	Tcl_SetErrorCode(interp, "TCL", "VALUE", "COMMAND", procName, (char *)NULL);
+	return TCL_ERROR;
+    }
+
+    /*
+     * We ARE creating the coroutine command: allocate the corresponding
+     * struct and create the corresponding command.
+     */
+
+    corPtr = (CoroutineData *)Tcl_Alloc(sizeof(CoroutineData));
+
+    cmdPtr = (Command *) TclNRCreateCommandInNs(interp, simpleName,
+	    (Tcl_Namespace *)nsPtr, /*objProc*/ NULL, TclNRInterpCoroutine,
+	    corPtr, DeleteCoroutine);
+
+    corPtr->cmdPtr = cmdPtr;
+    cmdPtr->refCount++;
+
+    /*
+     * #280.
+     * Provide the new coroutine with its own copy of the lineLABCPtr
+     * hashtable for literal command arguments in bytecode. Note that
+     * CFWordBC chains are not duplicated, only the entrypoints to them. This
+     * means that in the presence of coroutines each chain is potentially a
+     * tree. Like the chain -> tree conversion of the CmdFrame stack.
+     */
+
+    {
+	Tcl_HashSearch hSearch;
+	Tcl_HashEntry *hePtr;
+
+	corPtr->lineLABCPtr = (Tcl_HashTable *)Tcl_Alloc(sizeof(Tcl_HashTable));
+	Tcl_InitHashTable(corPtr->lineLABCPtr, TCL_ONE_WORD_KEYS);
+
+	for (hePtr = Tcl_FirstHashEntry(iPtr->lineLABCPtr,&hSearch);
+		hePtr; hePtr = Tcl_NextHashEntry(&hSearch)) {
+	    Tcl_HashEntry *newPtr =
+		    Tcl_CreateHashEntry(corPtr->lineLABCPtr,
+		    Tcl_GetHashKey(iPtr->lineLABCPtr, hePtr),
+		    NULL);
+
+	    Tcl_SetHashValue(newPtr, Tcl_GetHashValue(hePtr));
+	}
+    }
+
+    /*
+     * Create the base context.
+     */
+
+    corPtr->running.framePtr = iPtr->rootFramePtr;
+    corPtr->running.varFramePtr = iPtr->rootFramePtr;
+    corPtr->running.cmdFramePtr = NULL;
+    corPtr->running.lineLABCPtr = corPtr->lineLABCPtr;
+    corPtr->stackLevel = NULL;
+    corPtr->auxNumLevels = 0;
+    corPtr->yieldPtr = NULL;
+
+    /*
+     * Create the coro's execEnv, switch to it to push the exit and coro
+     * command callbacks, then switch back.
+     */
+
+    corPtr->eePtr = TclCreateExecEnv(interp, CORO_STACK_INITIAL_SIZE);
+    corPtr->callerEEPtr = iPtr->execEnvPtr;
+    corPtr->eePtr->corPtr = corPtr;
+
+    SAVE_CONTEXT(corPtr->caller);
+    corPtr->callerEEPtr = iPtr->execEnvPtr;
+    RESTORE_CONTEXT(corPtr->running);
+    iPtr->execEnvPtr = corPtr->eePtr;
+
+    TclNRAddCallback(interp, NRCoroutineExitCallback, corPtr,
+	    NULL, NULL, NULL);
+
+    /*
+     * Ensure that the command is looked up in the correct namespace.
+     */
+
+    iPtr->lookupNsPtr = lookupNsPtr;
+    Tcl_NREvalObj(interp, Tcl_NewListObj(objc - 2, objv + 2), 0);
+    iPtr->numLevels--;
+
+    SAVE_CONTEXT(corPtr->running);
+    RESTORE_CONTEXT(corPtr->caller);
+    iPtr->execEnvPtr = corPtr->callerEEPtr;
+
+    /*
+     * Now just resume the coroutine.
+     */
+
+    TclNRAddCallback(interp, TclNRCoroutineActivateCallback, corPtr,
+	    NULL, NULL, NULL);
+    return TCL_OK;
+}
+
+/*
+ * This is used in the [info] ensemble
+ */
+
+int
+TclInfoCoroutineCmd(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    CoroutineData *corPtr = iPtr->execEnvPtr->corPtr;
+
+    if (objc != 1) {
+	Tcl_WrongNumArgs(interp, 1, objv, NULL);
+	return TCL_ERROR;
+    }
+
+    if (corPtr && !(corPtr->cmdPtr->flags & CMD_DYING)) {
+	Tcl_Obj *namePtr;
+
+	TclNewObj(namePtr);
+	Tcl_GetCommandFullName(interp, (Tcl_Command) corPtr->cmdPtr, namePtr);
+	Tcl_SetObjResult(interp, namePtr);
+    }
+    return TCL_OK;
+}
+
+#undef iPtr
+
+/*
  * Local Variables:
  * mode: c
  * c-basic-offset: 4
  * fill-column: 78
+ * tab-width: 8
+ * indent-tabs-mode: nil
  * End:
  */
diff --git a/generic/tclBinary.c b/generic/tclBinary.c
index cbe4970..6edebc5 100644
--- a/generic/tclBinary.c
+++ b/generic/tclBinary.c
@@ -4,17 +4,18 @@
  *	This file contains the implementation of the "binary" Tcl built-in
  *	command and the Tcl binary data object.
  *
- * Copyright (c) 1997 by Sun Microsystems, Inc.
- * Copyright (c) 1998-1999 by Scriptics Corporation.
+ * Copyright © 1997 Sun Microsystems, Inc.
+ * Copyright © 1998-1999 Scriptics Corporation.
  *
  * See the file "license.terms" for information on usage and redistribution of
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
  */
 
 #include "tclInt.h"
-#include "tommath.h"
+#include "tclTomMath.h"
 
 #include <math.h>
+#include <assert.h>
 
 /*
  * The following constants are used by GetFormatSpec to indicate various
@@ -25,7 +26,7 @@
 #define BINARY_NOCOUNT -2	/* No count was specified in format. */
 
 /*
- * The following flags may be ORed together and returned by GetFormatSpec
+ * The following flags may be OR'ed together and returned by GetFormatSpec
  */
 
 #define BINARY_SIGNED 0		/* Field to be read as signed data */
@@ -36,7 +37,7 @@
  * placed in the object cache by 'binary scan' before it bails out and
  * switches back to Plan A (creating a new object for each value.)
  * Theoretically, it would be possible to keep the cache about for the values
- * that are already in it, but that makes the code slower in practise when
+ * that are already in it, but that makes the code slower in practice when
  * overflow happens, and makes little odds the rest of the time (as measured
  * on my machine.) It is also slower (on the sample I tried at least) to grow
  * the cache to hold all items we might want to put in it; presumably the
@@ -54,54 +55,115 @@
  * Prototypes for local procedures defined in this file:
  */
 
-static void		DupByteArrayInternalRep(Tcl_Obj *srcPtr,
+static void		DupProperByteArrayInternalRep(Tcl_Obj *srcPtr,
 			    Tcl_Obj *copyPtr);
 static int		FormatNumber(Tcl_Interp *interp, int type,
 			    Tcl_Obj *src, unsigned char **cursorPtr);
-static void		FreeByteArrayInternalRep(Tcl_Obj *objPtr);
-static int		GetFormatSpec(char **formatPtr, char *cmdPtr,
-			    int *countPtr, int *flagsPtr);
+static void		FreeProperByteArrayInternalRep(Tcl_Obj *objPtr);
+static int		GetFormatSpec(const char **formatPtr, char *cmdPtr,
+			    Tcl_Size *countPtr, int *flagsPtr);
 static Tcl_Obj *	ScanNumber(unsigned char *buffer, int type,
 			    int flags, Tcl_HashTable **numberCachePtr);
-static int		SetByteArrayFromAny(Tcl_Interp *interp,
+static int		SetByteArrayFromAny(Tcl_Interp *interp, Tcl_Size limit,
 			    Tcl_Obj *objPtr);
 static void		UpdateStringOfByteArray(Tcl_Obj *listPtr);
 static void		DeleteScanNumberCache(Tcl_HashTable *numberCachePtr);
 static int		NeedReversing(int format);
 static void		CopyNumber(const void *from, void *to,
-			    unsigned int length, int type);
+			    size_t length, int type);
+/* Binary ensemble commands */
+static Tcl_ObjCmdProc	BinaryFormatCmd;
+static Tcl_ObjCmdProc	BinaryScanCmd;
+/* Binary encoding sub-ensemble commands */
+static Tcl_ObjCmdProc	BinaryEncodeHex;
+static Tcl_ObjCmdProc	BinaryDecodeHex;
+static Tcl_ObjCmdProc	BinaryEncode64;
+static Tcl_ObjCmdProc	BinaryDecode64;
+static Tcl_ObjCmdProc	BinaryEncodeUu;
+static Tcl_ObjCmdProc	BinaryDecodeUu;
 
 /*
- * The following object type represents an array of bytes. An array of bytes
- * is not equivalent to an internationalized string. Conceptually, a string is
- * an array of 16-bit quantities organized as a sequence of properly formed
- * UTF-8 characters, while a ByteArray is an array of 8-bit quantities.
- * Accessor functions are provided to convert a ByteArray to a String or a
- * String to a ByteArray. Two or more consecutive bytes in an array of bytes
- * may look like a single UTF-8 character if the array is casually treated as
- * a string. But obtaining the String from a ByteArray is guaranteed to
- * produced properly formed UTF-8 sequences so that there is a one-to-one map
- * between bytes and characters.
- *
- * Converting a ByteArray to a String proceeds by casting each byte in the
- * array to a 16-bit quantity, treating that number as a Unicode character,
- * and storing the UTF-8 version of that Unicode character in the String. For
- * ByteArrays consisting entirely of values 1..127, the corresponding String
- * representation is the same as the ByteArray representation.
- *
- * Converting a String to a ByteArray proceeds by getting the Unicode
- * representation of each character in the String, casting it to a byte by
- * truncating the upper 8 bits, and then storing the byte in the ByteArray.
- * Converting from ByteArray to String and back to ByteArray is not lossy, but
- * converting an arbitrary String to a ByteArray may be.
+ * The following tables are used by the binary encoders
  */
 
-Tcl_ObjType tclByteArrayType = {
+static const char HexDigits[16] = {
+    '0', '1', '2', '3', '4', '5', '6', '7',
+    '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
+};
+
+static const char UueDigits[65] = {
+    '`', '!', '"', '#', '$', '%', '&', '\'',
+    '(', ')', '*', '+', ',', '-', '.', '/',
+    '0', '1', '2', '3', '4', '5', '6', '7',
+    '8', '9', ':', ';', '<', '=', '>', '?',
+    '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
+    'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
+    'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
+    'X', 'Y', 'Z', '[', '\\',']', '^', '_',
+    '`'
+};
+
+static const char B64Digits[65] = {
+    'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
+    'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
+    'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
+    'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
+    'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
+    'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
+    'w', 'x', 'y', 'z', '0', '1', '2', '3',
+    '4', '5', '6', '7', '8', '9', '+', '/',
+    '='
+};
+
+/*
+ * How to construct the ensembles.
+ */
+
+static const EnsembleImplMap binaryMap[] = {
+    { "format", BinaryFormatCmd, TclCompileBasicMin1ArgCmd, NULL, NULL, 0 },
+    { "scan",   BinaryScanCmd, TclCompileBasicMin2ArgCmd, NULL, NULL, 0 },
+    { "encode", NULL, NULL, NULL, NULL, 0 },
+    { "decode", NULL, NULL, NULL, NULL, 0 },
+    { NULL, NULL, NULL, NULL, NULL, 0 }
+};
+static const EnsembleImplMap encodeMap[] = {
+    { "hex",      BinaryEncodeHex, TclCompileBasic1ArgCmd, NULL, NULL, 0 },
+    { "uuencode", BinaryEncodeUu,  NULL, NULL, NULL, 0 },
+    { "base64",   BinaryEncode64,  NULL, NULL, NULL, 0 },
+    { NULL, NULL, NULL, NULL, NULL, 0 }
+};
+static const EnsembleImplMap decodeMap[] = {
+    { "hex",      BinaryDecodeHex, TclCompileBasic1Or2ArgCmd, NULL, NULL, 0 },
+    { "uuencode", BinaryDecodeUu,  TclCompileBasic1Or2ArgCmd, NULL, NULL, 0 },
+    { "base64",   BinaryDecode64,  TclCompileBasic1Or2ArgCmd, NULL, NULL, 0 },
+    { NULL, NULL, NULL, NULL, NULL, 0 }
+};
+
+/*
+ * The following Tcl_ObjType represents an array of bytes. The intent is to
+ * allow arbitrary binary data to pass through Tcl as a Tcl value without loss
+ * or damage. Such values are useful for things like encoded strings or Tk
+ * images to name just two.
+ *
+ * A bytearray is an ordered sequence of bytes. Each byte is an integer value
+ * in the range [0-255].  To be a Tcl value type, we need a way to encode each
+ * value in the value set as a Tcl string.  A simple encoding is to
+ * represent each byte value as the same codepoint value.  A bytearray of N
+ * bytes is encoded into a Tcl string of N characters where the codepoint of
+ * each character is the value of corresponding byte.  This approach creates a
+ * one-to-one map between all bytearray values and a subset of Tcl string
+ * values.  Tcl string values outside that subset do no represent any valid
+ * bytearray value.  Attempts to treat those values as bytearrays will lead
+ * to errors.  See TIP 568 for how this differs from Tcl 8.
+ */
+
+static const Tcl_ObjType properByteArrayType = {
     "bytearray",
-    FreeByteArrayInternalRep,
-    DupByteArrayInternalRep,
+    FreeProperByteArrayInternalRep,
+    DupProperByteArrayInternalRep,
     UpdateStringOfByteArray,
-    SetByteArrayFromAny
+    NULL,
+    TCL_OBJTYPE_V0
 };
 
 /*
@@ -111,23 +173,31 @@ Tcl_ObjType tclByteArrayType = {
  * fewer mallocs.
  */
 
-typedef struct ByteArray {
-    int used;			/* The number of bytes used in the byte
+typedef struct {
+    Tcl_Size used;		/* The number of bytes used in the byte
 				 * array. */
-    int allocated;		/* The amount of space actually allocated
+    Tcl_Size allocated;		/* The amount of space actually allocated
 				 * minus 1 byte. */
-    unsigned char bytes[4];	/* The array of bytes. The actual size of this
+    unsigned char bytes[TCLFLEXARRAY];	/* The array of bytes. The actual size of this
 				 * field depends on the 'allocated' field
 				 * above. */
 } ByteArray;
 
+#define BYTEARRAY_MAX_LEN (TCL_SIZE_MAX - (Tcl_Size)offsetof(ByteArray, bytes))
 #define BYTEARRAY_SIZE(len) \
-		((unsigned) (sizeof(ByteArray) - 4 + (len)))
-#define GET_BYTEARRAY(objPtr) \
-		((ByteArray *) (objPtr)->internalRep.twoPtrValue.ptr1)
-#define SET_BYTEARRAY(objPtr, baPtr) \
-		(objPtr)->internalRep.twoPtrValue.ptr1 = (VOID *) (baPtr)
-
+	( (len < 0 || BYTEARRAY_MAX_LEN < (len)) \
+	? (Tcl_Panic("negative length specified or max size of a Tcl value exceeded"), 0) \
+	: (offsetof(ByteArray, bytes) + (len)) )
+#define GET_BYTEARRAY(irPtr) ((ByteArray *) (irPtr)->twoPtrValue.ptr1)
+#define SET_BYTEARRAY(irPtr, baPtr) \
+		(irPtr)->twoPtrValue.ptr1 = (baPtr)
+
+int
+TclIsPureByteArray(
+    Tcl_Obj * objPtr)
+{
+    return TclHasInternalRep(objPtr, &properByteArrayType);
+}
 
 /*
  *----------------------------------------------------------------------
@@ -138,7 +208,7 @@ typedef struct ByteArray {
  *	from the given array of bytes.
  *
  * Results:
- *	The newly create object is returned. This object will have no initial
+ *	The newly created object is returned. This object has no initial
  *	string representation. The returned object has a ref count of 0.
  *
  * Side effects:
@@ -147,35 +217,25 @@ typedef struct ByteArray {
  *----------------------------------------------------------------------
  */
 
-#ifdef TCL_MEM_DEBUG
 #undef Tcl_NewByteArrayObj
 
 Tcl_Obj *
 Tcl_NewByteArrayObj(
     const unsigned char *bytes,	/* The array of bytes used to initialize the
 				 * new object. */
-    int length)			/* Length of the array of bytes, which must be
-				 * >= 0. */
+    Tcl_Size numBytes)		/* Number of bytes in the array,
+				 * must be >= 0. */
 {
-    return Tcl_DbNewByteArrayObj(bytes, length, "unknown", 0);
-}
-
+#ifdef TCL_MEM_DEBUG
+    return Tcl_DbNewByteArrayObj(bytes, numBytes, "unknown", 0);
 #else /* if not TCL_MEM_DEBUG */
-
-Tcl_Obj *
-Tcl_NewByteArrayObj(
-    const unsigned char *bytes,	/* The array of bytes used to initialize the
-				 * new object. */
-    int length)			/* Length of the array of bytes, which must be
-				 * >= 0. */
-{
     Tcl_Obj *objPtr;
 
     TclNewObj(objPtr);
-    Tcl_SetByteArrayObj(objPtr, bytes, length);
+    Tcl_SetByteArrayObj(objPtr, bytes, numBytes);
     return objPtr;
-}
 #endif /* TCL_MEM_DEBUG */
+}
 
 /*
  *----------------------------------------------------------------------
@@ -193,7 +253,7 @@ Tcl_NewByteArrayObj(
  *	result of calling Tcl_NewByteArrayObj.
  *
  * Results:
- *	The newly create object is returned. This object will have no initial
+ *	The newly created object is returned. This object has no initial
  *	string representation. The returned object has a ref count of 0.
  *
  * Side effects:
@@ -203,13 +263,12 @@ Tcl_NewByteArrayObj(
  */
 
 #ifdef TCL_MEM_DEBUG
-
 Tcl_Obj *
 Tcl_DbNewByteArrayObj(
     const unsigned char *bytes,	/* The array of bytes used to initialize the
 				 * new object. */
-    int length,			/* Length of the array of bytes, which must be
-				 * >= 0. */
+    Tcl_Size numBytes,		/* Number of bytes in the array,
+				 * must be >= 0. */
     const char *file,		/* The name of the source file calling this
 				 * procedure; used for debugging. */
     int line)			/* Line number in the source file; used for
@@ -218,27 +277,23 @@ Tcl_DbNewByteArrayObj(
     Tcl_Obj *objPtr;
 
     TclDbNewObj(objPtr, file, line);
-    Tcl_SetByteArrayObj(objPtr, bytes, length);
+    Tcl_SetByteArrayObj(objPtr, bytes, numBytes);
     return objPtr;
 }
-
 #else /* if not TCL_MEM_DEBUG */
-
 Tcl_Obj *
 Tcl_DbNewByteArrayObj(
     const unsigned char *bytes,	/* The array of bytes used to initialize the
 				 * new object. */
-    int length,			/* Length of the array of bytes, which must be
-				 * >= 0. */
-    const char *file,		/* The name of the source file calling this
-				 * procedure; used for debugging. */
-    int line)			/* Line number in the source file; used for
-				 * debugging. */
+    Tcl_Size numBytes,		/* Number of bytes in the array,
+				 * must be >= 0. */
+    TCL_UNUSED(const char *) /*file*/,
+    TCL_UNUSED(int) /*line*/)
 {
-    return Tcl_NewByteArrayObj(bytes, length);
+    return Tcl_NewByteArrayObj(bytes, numBytes);
 }
 #endif /* TCL_MEM_DEBUG */
-
+
 /*
  *---------------------------------------------------------------------------
  *
@@ -260,69 +315,104 @@ Tcl_DbNewByteArrayObj(
 void
 Tcl_SetByteArrayObj(
     Tcl_Obj *objPtr,		/* Object to initialize as a ByteArray. */
-    const unsigned char *bytes,	/* The array of bytes to use as the new
-				 * value. */
-    int length)			/* Length of the array of bytes, which must be
-				 * >= 0. */
+    const unsigned char *bytes,	/* The array of bytes to use as the new value.
+				 * May be NULL even if numBytes > 0. */
+    Tcl_Size numBytes)		/* Number of bytes in the array,
+				 * must be >= 0 */
 {
     ByteArray *byteArrayPtr;
+    Tcl_ObjInternalRep ir;
 
     if (Tcl_IsShared(objPtr)) {
 	Tcl_Panic("%s called with shared object", "Tcl_SetByteArrayObj");
     }
-    TclFreeIntRep(objPtr);
     TclInvalidateStringRep(objPtr);
 
-    if (length < 0) {
-	length = 0;
-    }
-    byteArrayPtr = (ByteArray *) ckalloc(BYTEARRAY_SIZE(length));
-    byteArrayPtr->used = length;
-    byteArrayPtr->allocated = length;
+    assert(numBytes >= 0);
+    byteArrayPtr = (ByteArray *)Tcl_Alloc(BYTEARRAY_SIZE(numBytes));
+    byteArrayPtr->used = numBytes;
+    byteArrayPtr->allocated = numBytes;
 
-    if ((bytes != NULL) && (length > 0)) {
-	memcpy(byteArrayPtr->bytes, bytes, (size_t) length);
+    if ((bytes != NULL) && (numBytes > 0)) {
+	memcpy(byteArrayPtr->bytes, bytes, numBytes);
     }
-    objPtr->typePtr = &tclByteArrayType;
-    SET_BYTEARRAY(objPtr, byteArrayPtr);
+    SET_BYTEARRAY(&ir, byteArrayPtr);
+
+    Tcl_StoreInternalRep(objPtr, &properByteArrayType, &ir);
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * Tcl_GetByteArrayFromObj --
+ * TclGetBytesFromObj --
  *
- *	Attempt to get the array of bytes from the Tcl object. If the object
- *	is not already a ByteArray object, an attempt will be made to convert
- *	it to one.
+ *	Attempt to extract the value from objPtr in the representation
+ *	of a byte sequence. On success return the extracted byte sequence.
+ *	On failure, return NULL and record error message and code in
+ *	interp (if not NULL).
  *
  * Results:
- *	Pointer to array of bytes representing the ByteArray object.
- *
- * Side effects:
- *	Frees old internal rep. Allocates memory for new internal rep.
+ *	NULL or pointer to array of bytes representing the ByteArray object.
+ *	Writes number of bytes in array to *numBytesPtr.
  *
  *----------------------------------------------------------------------
  */
 
+#undef Tcl_GetBytesFromObj
 unsigned char *
-Tcl_GetByteArrayFromObj(
-    Tcl_Obj *objPtr,		/* The ByteArray object. */
-    int *lengthPtr)		/* If non-NULL, filled with length of the
-				 * array of bytes in the ByteArray object. */
+Tcl_GetBytesFromObj(
+    Tcl_Interp *interp,		/* For error reporting */
+    Tcl_Obj *objPtr,		/* Value to extract from */
+    Tcl_Size *numBytesPtr)	/* If non-NULL, write the number of bytes
+				 * in the array here */
 {
     ByteArray *baPtr;
+    const Tcl_ObjInternalRep *irPtr
+	    = TclFetchInternalRep(objPtr, &properByteArrayType);
 
-    if (objPtr->typePtr != &tclByteArrayType) {
-	SetByteArrayFromAny(NULL, objPtr);
+    if (irPtr == NULL) {
+	if (TCL_ERROR == SetByteArrayFromAny(interp, TCL_INDEX_NONE, objPtr)) {
+	    return NULL;
+	}
+	irPtr = TclFetchInternalRep(objPtr, &properByteArrayType);
     }
-    baPtr = GET_BYTEARRAY(objPtr);
+    baPtr = GET_BYTEARRAY(irPtr);
 
-    if (lengthPtr != NULL) {
-	*lengthPtr = baPtr->used;
+    if (numBytesPtr != NULL) {
+	*numBytesPtr = baPtr->used;
     }
-    return (unsigned char *) baPtr->bytes;
+    return baPtr->bytes;
 }
+
+#if !defined(TCL_NO_DEPRECATED)
+unsigned char *
+TclGetBytesFromObj(
+    Tcl_Interp *interp,		/* For error reporting */
+    Tcl_Obj *objPtr,		/* Value to extract from */
+    void *numBytesPtr)		/* If non-NULL, write the number of bytes
+				 * in the array here */
+{
+    Tcl_Size numBytes = 0;
+    unsigned char *bytes = Tcl_GetBytesFromObj(interp, objPtr, &numBytes);
+
+    if (bytes && numBytesPtr) {
+	if (numBytes > INT_MAX) {
+	    /* Caller asked for numBytes to be written to an int, but the
+	     * value is outside the int range. */
+
+	    if (interp) {
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			"byte sequence length exceeds INT_MAX", -1));
+		Tcl_SetErrorCode(interp, "TCL", "API", "OUTDATED", (char *)NULL);
+	    }
+	    return NULL;
+	} else {
+	    *(int *)numBytesPtr = (int) numBytes;
+	}
+    }
+    return bytes;
+}
+#endif
 
 /*
  *----------------------------------------------------------------------
@@ -349,73 +439,156 @@ Tcl_GetByteArrayFromObj(
 unsigned char *
 Tcl_SetByteArrayLength(
     Tcl_Obj *objPtr,		/* The ByteArray object. */
-    int length)			/* New length for internal byte array. */
+    Tcl_Size numBytes)		/* Number of bytes in resized array
+				 * Must be >= 0 */
 {
     ByteArray *byteArrayPtr;
+    Tcl_ObjInternalRep *irPtr;
 
+    assert(numBytes >= 0);
     if (Tcl_IsShared(objPtr)) {
 	Tcl_Panic("%s called with shared object", "Tcl_SetByteArrayLength");
     }
-    if (objPtr->typePtr != &tclByteArrayType) {
-	SetByteArrayFromAny(NULL, objPtr);
+
+    irPtr = TclFetchInternalRep(objPtr, &properByteArrayType);
+    if (irPtr == NULL) {
+	if (TCL_ERROR == SetByteArrayFromAny(NULL, numBytes, objPtr)) {
+	    return NULL;
+	}
+	irPtr = TclFetchInternalRep(objPtr, &properByteArrayType);
     }
 
-    byteArrayPtr = GET_BYTEARRAY(objPtr);
-    if (length > byteArrayPtr->allocated) {
-	byteArrayPtr = (ByteArray *) ckrealloc(
-		(char *) byteArrayPtr, BYTEARRAY_SIZE(length));
-	byteArrayPtr->allocated = length;
-	SET_BYTEARRAY(objPtr, byteArrayPtr);
+    byteArrayPtr = GET_BYTEARRAY(irPtr);
+    if (numBytes > byteArrayPtr->allocated) {
+	byteArrayPtr = (ByteArray *)Tcl_Realloc(byteArrayPtr,
+		BYTEARRAY_SIZE(numBytes));
+	byteArrayPtr->allocated = numBytes;
+	SET_BYTEARRAY(irPtr, byteArrayPtr);
     }
     TclInvalidateStringRep(objPtr);
-    byteArrayPtr->used = length;
+    byteArrayPtr->used = numBytes;
     return byteArrayPtr->bytes;
 }
 
 /*
  *----------------------------------------------------------------------
  *
+ * MakeByteArray --
+ *
+ *	Generate a ByteArray internal rep from the string rep of objPtr.
+ *	The generated byte sequence may have no more than limit bytes.
+ *	A negative value for limit indicates no limit imposed. If
+ *	boolean argument demandProper is true, then no byte sequence should
+ *	be output to the caller (write NULL instead). When no bytes sequence
+ *	is output and interp is not NULL, leave an error message and error
+ *	code in interp explaining why a proper byte sequence could not be
+ *	made.
+ *
+ * Results:
+ *	Returns a boolean indicating whether the bytes generated (up to
+ *	limit bytes) are a proper representation of (a limited prefix of)
+ *	the string. Writes a pointer to the generated ByteArray to
+ *	*byteArrayPtrPtr. If not NULL it needs to be released with Tcl_Free().
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+MakeByteArray(
+    Tcl_Interp *interp,
+    Tcl_Obj *objPtr,
+    Tcl_Size limit,
+    int demandProper,
+    ByteArray **byteArrayPtrPtr)
+{
+    Tcl_Size length;
+    const char *src = TclGetStringFromObj(objPtr, &length);
+    Tcl_Size numBytes = (limit >= 0 && limit < length) ? limit : length;
+    ByteArray *byteArrayPtr = (ByteArray *)Tcl_Alloc(BYTEARRAY_SIZE(numBytes));
+    unsigned char *dst = byteArrayPtr->bytes;
+    unsigned char *dstEnd = dst + numBytes;
+    const char *srcEnd = src + length;
+    int proper = 1;
+
+    for (; src < srcEnd && dst < dstEnd; ) {
+	int ch;
+	Tcl_Size count = TclUtfToUniChar(src, &ch);
+
+	if (ch > 255) {
+	    proper = 0;
+	    if (demandProper) {
+		if (interp) {
+		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+			    "expected byte sequence but character %"
+			    TCL_Z_MODIFIER "u was '%1s' (U+%06X)",
+			    dst - byteArrayPtr->bytes, src, ch));
+		    Tcl_SetErrorCode(interp, "TCL", "VALUE", "BYTES", (char *)NULL);
+		}
+		Tcl_Free(byteArrayPtr);
+		*byteArrayPtrPtr = NULL;
+		return proper;
+	    }
+	}
+	src += count;
+	*dst++ = UCHAR(ch);
+    }
+    byteArrayPtr->used = dst - byteArrayPtr->bytes;
+    byteArrayPtr->allocated = numBytes;
+
+    *byteArrayPtrPtr = byteArrayPtr;
+    return proper;
+}
+
+static Tcl_Obj *
+TclNarrowToBytes(
+    Tcl_Obj *objPtr)
+{
+    if (NULL == TclFetchInternalRep(objPtr, &properByteArrayType)) {
+	Tcl_ObjInternalRep ir;
+	ByteArray *byteArrayPtr;
+
+	if (0 == MakeByteArray(NULL, objPtr, TCL_INDEX_NONE, 0, &byteArrayPtr)) {
+	    TclNewObj(objPtr);
+	    TclInvalidateStringRep(objPtr);
+	}
+	SET_BYTEARRAY(&ir, byteArrayPtr);
+	Tcl_StoreInternalRep(objPtr, &properByteArrayType, &ir);
+    }
+    Tcl_IncrRefCount(objPtr);
+    return objPtr;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
  * SetByteArrayFromAny --
  *
  *	Generate the ByteArray internal rep from the string rep.
  *
  * Results:
- *	The return value is always TCL_OK.
+ *	Tcl return code indicating OK or ERROR.
  *
  * Side effects:
- *	A ByteArray object is stored as the internal rep of objPtr.
+ *	A ByteArray struct may be stored as the internal rep of objPtr.
  *
  *----------------------------------------------------------------------
  */
 
 static int
 SetByteArrayFromAny(
-    Tcl_Interp *interp,		/* Not used. */
+    Tcl_Interp *interp,		/* For error reporting. */
+    Tcl_Size limit,		/* Create no more than this many bytes */
     Tcl_Obj *objPtr)		/* The object to convert to type ByteArray. */
 {
-    int length;
-    char *src, *srcEnd;
-    unsigned char *dst;
     ByteArray *byteArrayPtr;
-    Tcl_UniChar ch;
-
-    if (objPtr->typePtr != &tclByteArrayType) {
-	src = TclGetStringFromObj(objPtr, &length);
-	srcEnd = src + length;
-
-	byteArrayPtr = (ByteArray *) ckalloc(BYTEARRAY_SIZE(length));
-	for (dst = byteArrayPtr->bytes; src < srcEnd; ) {
-	    src += Tcl_UtfToUniChar(src, &ch);
-	    *dst++ = (unsigned char) ch;
-	}
-
-	byteArrayPtr->used = dst - byteArrayPtr->bytes;
-	byteArrayPtr->allocated = length;
+    Tcl_ObjInternalRep ir;
 
-	TclFreeIntRep(objPtr);
-	objPtr->typePtr = &tclByteArrayType;
-	SET_BYTEARRAY(objPtr, byteArrayPtr);
+    if (0 == MakeByteArray(interp, objPtr, limit, 1, &byteArrayPtr)) {
+	return TCL_ERROR;
     }
+
+    SET_BYTEARRAY(&ir, byteArrayPtr);
+    Tcl_StoreInternalRep(objPtr, &properByteArrayType, &ir);
     return TCL_OK;
 }
 
@@ -437,11 +610,10 @@ SetByteArrayFromAny(
  */
 
 static void
-FreeByteArrayInternalRep(
+FreeProperByteArrayInternalRep(
     Tcl_Obj *objPtr)		/* Object with internal rep to free. */
 {
-    ckfree((char *) GET_BYTEARRAY(objPtr));
-    objPtr->typePtr = NULL;
+    Tcl_Free(GET_BYTEARRAY(TclFetchInternalRep(objPtr, &properByteArrayType)));
 }
 
 /*
@@ -462,23 +634,24 @@ FreeByteArrayInternalRep(
  */
 
 static void
-DupByteArrayInternalRep(
+DupProperByteArrayInternalRep(
     Tcl_Obj *srcPtr,		/* Object with internal rep to copy. */
     Tcl_Obj *copyPtr)		/* Object with internal rep to set. */
 {
-    int length;
+    Tcl_Size length;
     ByteArray *srcArrayPtr, *copyArrayPtr;
+    Tcl_ObjInternalRep ir;
 
-    srcArrayPtr = GET_BYTEARRAY(srcPtr);
+    srcArrayPtr = GET_BYTEARRAY(TclFetchInternalRep(srcPtr, &properByteArrayType));
     length = srcArrayPtr->used;
 
-    copyArrayPtr = (ByteArray *) ckalloc(BYTEARRAY_SIZE(length));
+    copyArrayPtr = (ByteArray *)Tcl_Alloc(BYTEARRAY_SIZE(length));
     copyArrayPtr->used = length;
     copyArrayPtr->allocated = length;
-    memcpy(copyArrayPtr->bytes, srcArrayPtr->bytes, (size_t) length);
-    SET_BYTEARRAY(copyPtr, copyArrayPtr);
+    memcpy(copyArrayPtr->bytes, srcArrayPtr->bytes, length);
 
-    copyPtr->typePtr = &tclByteArrayType;
+    SET_BYTEARRAY(&ir, copyArrayPtr);
+    Tcl_StoreInternalRep(copyPtr, &properByteArrayType, &ir);
 }
 
 /*
@@ -486,9 +659,7 @@ DupByteArrayInternalRep(
  *
  * UpdateStringOfByteArray --
  *
- *	Update the string representation for a ByteArray data object. Note:
- *	This procedure does not invalidate an existing old string rep so
- *	storage will be lost if this has not already been done.
+ *	Update the string representation for a ByteArray data object.
  *
  * Results:
  *	None.
@@ -497,9 +668,6 @@ DupByteArrayInternalRep(
  *	The object's string is set to a valid string that results from the
  *	ByteArray-to-string conversion.
  *
- *	The object becomes a string object -- the internal rep is discarded
- *	and the typePtr becomes NULL.
- *
  *----------------------------------------------------------------------
  */
 
@@ -508,41 +676,33 @@ UpdateStringOfByteArray(
     Tcl_Obj *objPtr)		/* ByteArray object whose string rep to
 				 * update. */
 {
-    int i, length, size;
-    unsigned char *src;
-    char *dst;
-    ByteArray *byteArrayPtr;
-
-    byteArrayPtr = GET_BYTEARRAY(objPtr);
-    src = byteArrayPtr->bytes;
-    length = byteArrayPtr->used;
+    const Tcl_ObjInternalRep *irPtr = TclFetchInternalRep(objPtr, &properByteArrayType);
+    ByteArray *byteArrayPtr = GET_BYTEARRAY(irPtr);
+    unsigned char *src = byteArrayPtr->bytes;
+    Tcl_Size i, length = byteArrayPtr->used;
+    Tcl_Size size = length;
 
     /*
      * How much space will string rep need?
      */
 
-    size = length;
-    for (i = 0; i < length && size >= 0; i++) {
+    for (i = 0; i < length; i++) {
 	if ((src[i] == 0) || (src[i] > 127)) {
 	    size++;
 	}
     }
-    if (size < 0) {
-	Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
-    }
-
-    dst = (char *) ckalloc((unsigned) (size + 1));
-    objPtr->bytes = dst;
-    objPtr->length = size;
 
     if (size == length) {
-	memcpy(dst, src, (size_t) size);
-	dst[size] = '\0';
+	char *dst = Tcl_InitStringRep(objPtr, (char *)src, size);
+
+	TclOOM(dst, size);
     } else {
+	char *dst = Tcl_InitStringRep(objPtr, NULL, size);
+
+	TclOOM(dst, size);
 	for (i = 0; i < length; i++) {
 	    dst += Tcl_UniCharToUtf(src[i], dst);
 	}
-	*dst = '\0';
     }
 }
 
@@ -565,15 +725,15 @@ UpdateStringOfByteArray(
  *----------------------------------------------------------------------
  */
 
-#define TCL_MIN_GROWTH 1024
 void
 TclAppendBytesToByteArray(
     Tcl_Obj *objPtr,
     const unsigned char *bytes,
-    int len)
+    Tcl_Size len)
 {
     ByteArray *byteArrayPtr;
-    int needed;
+    Tcl_Size needed;
+    Tcl_ObjInternalRep *irPtr;
 
     if (Tcl_IsShared(objPtr)) {
 	Tcl_Panic("%s called with shared object","TclAppendBytesToByteArray");
@@ -583,52 +743,41 @@ TclAppendBytesToByteArray(
 		"TclAppendBytesToByteArray");
     }
     if (len == 0) {
-	/* Append zero bytes is a no-op. */
+	/*
+	 * Append zero bytes is a no-op.
+	 */
+
 	return;
     }
-    if (objPtr->typePtr != &tclByteArrayType) {
-	SetByteArrayFromAny(NULL, objPtr);
-    }
-    byteArrayPtr = GET_BYTEARRAY(objPtr);
 
-    if (len > INT_MAX - byteArrayPtr->used) {
-	Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
+    irPtr = TclFetchInternalRep(objPtr, &properByteArrayType);
+    if (irPtr == NULL) {
+	if (TCL_ERROR == SetByteArrayFromAny(NULL, TCL_INDEX_NONE, objPtr)) {
+	    Tcl_Panic("attempt to append bytes to non-bytearray");
+	}
+	irPtr = TclFetchInternalRep(objPtr, &properByteArrayType);
     }
+    byteArrayPtr = GET_BYTEARRAY(irPtr);
 
-    needed = byteArrayPtr->used + len;
     /*
      * If we need to, resize the allocated space in the byte array.
      */
 
+    if ((BYTEARRAY_MAX_LEN - byteArrayPtr->used) < len) {
+	/* Will wrap around !! */
+	Tcl_Panic("max size of a byte array exceeded");
+    }
+    needed = byteArrayPtr->used + len;
     if (needed > byteArrayPtr->allocated) {
-	ByteArray *ptr = NULL;
-	int attempt;
-
-	if (needed <= INT_MAX/2) {
-	    /* Try to allocate double the total space that is needed. */
-	    attempt = 2 * needed;
-	    ptr = (ByteArray *) attemptckrealloc((void *) byteArrayPtr,
-		    BYTEARRAY_SIZE(attempt));
-	}
-	if (ptr == NULL) {
-	    /* Try to allocate double the increment that is needed (plus). */
-	    unsigned int limit = INT_MAX - needed;
-	    unsigned int extra = len + TCL_MIN_GROWTH;
-	    int growth = (int) ((extra > limit) ? limit : extra);
-
-	    attempt = needed + growth;
-	    ptr = (ByteArray *) attemptckrealloc((void *) byteArrayPtr,
-		    BYTEARRAY_SIZE(attempt));
-	}
-	if (ptr == NULL) {
-	    /* Last chance: Try to allocate exactly what is needed. */
-	    attempt = needed;
-	    ptr = (ByteArray *) ckrealloc((void *)byteArrayPtr,
-		    BYTEARRAY_SIZE(attempt));
-	}
-	byteArrayPtr = ptr;
-	byteArrayPtr->allocated = attempt;
-	SET_BYTEARRAY(objPtr, byteArrayPtr);
+	Tcl_Size newCapacity;
+	byteArrayPtr =
+	    (ByteArray *)TclReallocElemsEx(byteArrayPtr,
+					   needed,
+					   1,
+					   offsetof(ByteArray, bytes),
+					   &newCapacity);
+	byteArrayPtr->allocated = newCapacity;
+	SET_BYTEARRAY(irPtr, byteArrayPtr);
     }
 
     if (bytes) {
@@ -641,9 +790,38 @@ TclAppendBytesToByteArray(
 /*
  *----------------------------------------------------------------------
  *
- * Tcl_BinaryObjCmd --
+ * TclInitBinaryCmd --
+ *
+ *	This function is called to create the "binary" Tcl command. See the
+ *	user documentation for details on what it does.
+ *
+ * Results:
+ *	A command token for the new command.
+ *
+ * Side effects:
+ *	Creates a new binary command as a mapped ensemble.
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tcl_Command
+TclInitBinaryCmd(
+    Tcl_Interp *interp)
+{
+    Tcl_Command binaryEnsemble;
+
+    binaryEnsemble = TclMakeEnsemble(interp, "binary", binaryMap);
+    TclMakeEnsemble(interp, "binary encode", encodeMap);
+    TclMakeEnsemble(interp, "binary decode", decodeMap);
+    return binaryEnsemble;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * BinaryFormatCmd --
  *
- *	This procedure implements the "binary" Tcl command.
+ *	This procedure implements the "binary format" Tcl command.
  *
  * Results:
  *	A standard Tcl result.
@@ -654,9 +832,9 @@ TclAppendBytesToByteArray(
  *----------------------------------------------------------------------
  */
 
-int
-Tcl_BinaryObjCmd(
-    ClientData dummy,		/* Not used. */
+static int
+BinaryFormatCmd(
+    TCL_UNUSED(void *),
     Tcl_Interp *interp,		/* Current interpreter. */
     int objc,			/* Number of arguments. */
     Tcl_Obj *const objv[])	/* Argument objects. */
@@ -665,10 +843,10 @@ Tcl_BinaryObjCmd(
     int value = 0;		/* Current integer value to be packed.
 				 * Initialized to avoid compiler warning. */
     char cmd;			/* Current format character. */
-    int count;			/* Count associated with current format
+    Tcl_Size count;		/* Count associated with current format
 				 * character. */
     int flags;			/* Format field flags */
-    char *format;		/* Pointer to current position in format
+    const char *format;		/* Pointer to current position in format
 				 * string. */
     Tcl_Obj *resultPtr = NULL;	/* Object holding result buffer. */
     unsigned char *buffer;	/* Start of result buffer. */
@@ -676,797 +854,858 @@ Tcl_BinaryObjCmd(
     unsigned char *maxPos;	/* Greatest position within result buffer that
 				 * cursor has visited.*/
     const char *errorString;
-    char *errorValue, *str;
-    int offset, size, length, index;
-    static const char *options[] = {
-	"format",	"scan",		NULL
-    };
-    enum options {
-	BINARY_FORMAT,	BINARY_SCAN
-    };
+    const char *errorValue, *str;
+    Tcl_Size offset, size, length;
 
     if (objc < 2) {
-    	Tcl_WrongNumArgs(interp, 1, objv, "option ?arg arg ...?");
+	Tcl_WrongNumArgs(interp, 1, objv, "formatString ?arg ...?");
 	return TCL_ERROR;
     }
 
-    if (Tcl_GetIndexFromObj(interp, objv[1], options, "option", 0,
-	    &index) != TCL_OK) {
-    	return TCL_ERROR;
-    }
+    /*
+     * To avoid copying the data, we format the string in two passes. The
+     * first pass computes the size of the output buffer. The second pass
+     * places the formatted data into the buffer.
+     */
 
-    switch ((enum options) index) {
-    case BINARY_FORMAT:
-	if (objc < 3) {
-	    Tcl_WrongNumArgs(interp, 2, objv, "formatString ?arg arg ...?");
-	    return TCL_ERROR;
+    format = TclGetString(objv[1]);
+    arg = 2;
+    offset = 0;
+    length = 0;
+    while (*format != '\0') {
+	str = format;
+	flags = 0;
+	if (!GetFormatSpec(&format, &cmd, &count, &flags)) {
+	    break;
 	}
+	switch (cmd) {
+	case 'a':
+	case 'A':
+	case 'b':
+	case 'B':
+	case 'h':
+	case 'H':
+	    /*
+	     * For string-type specifiers, the count corresponds to the number
+	     * of bytes in a single argument.
+	     */
 
-	/*
-	 * To avoid copying the data, we format the string in two passes. The
-	 * first pass computes the size of the output buffer. The second pass
-	 * places the formatted data into the buffer.
-	 */
-
-	format = TclGetString(objv[2]);
-	arg = 3;
-	offset = 0;
-	length = 0;
-	while (*format != '\0') {
-	    str = format;
-	    flags = 0;
-	    if (!GetFormatSpec(&format, &cmd, &count, &flags)) {
-		break;
+	    if (arg >= objc) {
+		goto badIndex;
 	    }
-	    switch (cmd) {
-	    case 'a':
-	    case 'A':
-	    case 'b':
-	    case 'B':
-	    case 'h':
-	    case 'H':
-		/*
-		 * For string-type specifiers, the count corresponds to the
-		 * number of bytes in a single argument.
-		 */
-
-		if (arg >= objc) {
-		    goto badIndex;
-		}
-		if (count == BINARY_ALL) {
-		    Tcl_GetByteArrayFromObj(objv[arg], &count);
-		} else if (count == BINARY_NOCOUNT) {
-		    count = 1;
+	    if (count == BINARY_ALL) {
+		if (Tcl_GetBytesFromObj(NULL, objv[arg], &count) == NULL) {
+		    count = Tcl_GetCharLength(objv[arg]);
 		}
+	    } else if (count == BINARY_NOCOUNT) {
+		count = 1;
+	    }
+	    arg++;
+	    if (cmd == 'a' || cmd == 'A') {
+		offset += count;
+	    } else if (cmd == 'b' || cmd == 'B') {
+		offset += (count + 7) / 8;
+	    } else {
+		offset += (count + 1) / 2;
+	    }
+	    break;
+	case 'c':
+	    size = 1;
+	    goto doNumbers;
+	case 't':
+	case 's':
+	case 'S':
+	    size = 2;
+	    goto doNumbers;
+	case 'n':
+	case 'i':
+	case 'I':
+	    size = 4;
+	    goto doNumbers;
+	case 'm':
+	case 'w':
+	case 'W':
+	    size = 8;
+	    goto doNumbers;
+	case 'r':
+	case 'R':
+	case 'f':
+	    size = sizeof(float);
+	    goto doNumbers;
+	case 'q':
+	case 'Q':
+	case 'd':
+	    size = sizeof(double);
+
+	doNumbers:
+	    if (arg >= objc) {
+		goto badIndex;
+	    }
+
+	    /*
+	     * For number-type specifiers, the count corresponds to the number
+	     * of elements in the list stored in a single argument. If no
+	     * count is specified, then the argument is taken as a single
+	     * non-list value.
+	     */
+
+	    if (count == BINARY_NOCOUNT) {
 		arg++;
-		if (cmd == 'a' || cmd == 'A') {
-		    offset += count;
-		} else if (cmd == 'b' || cmd == 'B') {
-		    offset += (count + 7) / 8;
-		} else {
-		    offset += (count + 1) / 2;
-		}
-		break;
-	    case 'c':
-		size = 1;
-		goto doNumbers;
-	    case 't':
-	    case 's':
-	    case 'S':
-		size = 2;
-		goto doNumbers;
-	    case 'n':
-	    case 'i':
-	    case 'I':
-		size = 4;
-		goto doNumbers;
-	    case 'm':
-	    case 'w':
-	    case 'W':
-		size = 8;
-		goto doNumbers;
-	    case 'r':
-	    case 'R':
-	    case 'f':
-		size = sizeof(float);
-		goto doNumbers;
-	    case 'q':
-	    case 'Q':
-	    case 'd':
-		size = sizeof(double);
-
-	    doNumbers:
-		if (arg >= objc) {
-		    goto badIndex;
-		}
+		count = 1;
+	    } else {
+		Tcl_Size listc;
+		Tcl_Obj **listv;
 
 		/*
-		 * For number-type specifiers, the count corresponds to the
-		 * number of elements in the list stored in a single argument.
-		 * If no count is specified, then the argument is taken as a
-		 * single non-list value.
+		 * The macro evals its args more than once: avoid arg++
 		 */
 
-		if (count == BINARY_NOCOUNT) {
-		    arg++;
-		    count = 1;
-		} else {
-		    int listc;
-		    Tcl_Obj **listv;
-
-		    /* The macro evals its args more than once: avoid arg++ */		    
-		    if (TclListObjGetElements(interp, objv[arg], &listc,
-			    &listv) != TCL_OK) {
-			return TCL_ERROR;
-		    }
-		    arg++;
-		    
-		    if (count == BINARY_ALL) {
-			count = listc;
-		    } else if (count > listc) {
-			Tcl_AppendResult(interp,
-				"number of elements in list does not match count",
-				NULL);
-			return TCL_ERROR;
-		    }
+		if (TclListObjLength(interp, objv[arg], &listc) != TCL_OK) {
+		    return TCL_ERROR;
 		}
-		offset += count*size;
-		break;
 
-	    case 'x':
 		if (count == BINARY_ALL) {
-		    Tcl_AppendResult(interp,
-			    "cannot use \"*\" in format string with \"x\"",
-			    NULL);
+		    count = listc;
+		} else if (count > listc) {
+		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			    "number of elements in list does not match count",
+			    -1));
 		    return TCL_ERROR;
-		} else if (count == BINARY_NOCOUNT) {
-		    count = 1;
-		}
-		offset += count;
-		break;
-	    case 'X':
-		if (count == BINARY_NOCOUNT) {
-		    count = 1;
 		}
-		if ((count > offset) || (count == BINARY_ALL)) {
-		    count = offset;
-		}
-		if (offset > length) {
-		    length = offset;
-		}
-		offset -= count;
-		break;
-	    case '@':
-		if (offset > length) {
-		    length = offset;
-		}
-		if (count == BINARY_ALL) {
-		    offset = length;
-		} else if (count == BINARY_NOCOUNT) {
-		    goto badCount;
-		} else {
-		    offset = count;
+		if (TclListObjGetElements(interp, objv[arg], &listc,
+			&listv) != TCL_OK) {
+		    return TCL_ERROR;
 		}
-		break;
-	    default:
-		errorString = str;
-		goto badField;
+		arg++;
 	    }
+	    offset += count*size;
+	    break;
+
+	case 'x':
+	    if (count == BINARY_ALL) {
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			"cannot use \"*\" in format string with \"x\"", -1));
+		return TCL_ERROR;
+	    } else if (count == BINARY_NOCOUNT) {
+		count = 1;
+	    }
+	    offset += count;
+	    break;
+	case 'X':
+	    if (count == BINARY_NOCOUNT) {
+		count = 1;
+	    }
+	    if ((count > offset) || (count == BINARY_ALL)) {
+		count = offset;
+	    }
+	    if (offset > length) {
+		length = offset;
+	    }
+	    offset -= count;
+	    break;
+	case '@':
+	    if (offset > length) {
+		length = offset;
+	    }
+	    if (count == BINARY_ALL) {
+		offset = length;
+	    } else if (count == BINARY_NOCOUNT) {
+		goto badCount;
+	    } else {
+		offset = count;
+	    }
+	    break;
+	default:
+	    errorString = str;
+	    goto badField;
 	}
-	if (offset > length) {
-	    length = offset;
-	}
-	if (length == 0) {
-	    return TCL_OK;
-	}
+    }
+    if (offset > length) {
+	length = offset;
+    }
+    if (length == 0) {
+	return TCL_OK;
+    }
 
-	/*
-	 * Prepare the result object by preallocating the caclulated number of
-	 * bytes and filling with nulls.
-	 */
+    /*
+     * Prepare the result object by preallocating the calculated number of
+     * bytes and filling with nulls.
+     */
 
-	resultPtr = Tcl_NewObj();
-	buffer = Tcl_SetByteArrayLength(resultPtr, length);
-	memset(buffer, 0, (size_t) length);
+    TclNewObj(resultPtr);
+    buffer = Tcl_SetByteArrayLength(resultPtr, length);
+    memset(buffer, 0, length);
 
-	/*
-	 * Pack the data into the result object. Note that we can skip the
-	 * error checking during this pass, since we have already parsed the
-	 * string once.
-	 */
+    /*
+     * Pack the data into the result object. Note that we can skip the error
+     * checking during this pass, since we have already parsed the string
+     * once.
+     */
 
-	arg = 3;
-	format = TclGetString(objv[2]);
-	cursor = buffer;
-	maxPos = cursor;
-	while (*format != 0) {
-	    flags = 0;
-	    if (!GetFormatSpec(&format, &cmd, &count, &flags)) {
-		break;
+    arg = 2;
+    format = TclGetString(objv[1]);
+    cursor = buffer;
+    maxPos = cursor;
+    while (*format != 0) {
+	flags = 0;
+	if (!GetFormatSpec(&format, &cmd, &count, &flags)) {
+	    break;
+	}
+	if ((count == 0) && (cmd != '@')) {
+	    if (cmd != 'x') {
+		arg++;
 	    }
-	    if ((count == 0) && (cmd != '@')) {
-		if (cmd != 'x') {
-		    arg++;
-		}
-		continue;
+	    continue;
+	}
+	switch (cmd) {
+	case 'a':
+	case 'A': {
+	    char pad = (char) (cmd == 'a' ? '\0' : ' ');
+	    unsigned char *bytes;
+	    Tcl_Obj *copy = TclNarrowToBytes(objv[arg++]);
+
+	    bytes = Tcl_GetBytesFromObj(NULL, copy, &length);
+
+	    if (count == BINARY_ALL) {
+		count = length;
+	    } else if (count == BINARY_NOCOUNT) {
+		count = 1;
 	    }
-	    switch (cmd) {
-	    case 'a':
-	    case 'A': {
-		char pad = (char) (cmd == 'a' ? '\0' : ' ');
-		unsigned char *bytes;
-
-		bytes = Tcl_GetByteArrayFromObj(objv[arg++], &length);
-
-		if (count == BINARY_ALL) {
-		    count = length;
-		} else if (count == BINARY_NOCOUNT) {
-		    count = 1;
-		}
-		if (length >= count) {
-		    memcpy(cursor, bytes, (size_t) count);
-		} else {
-		    memcpy(cursor, bytes, (size_t) length);
-		    memset(cursor + length, pad, (size_t) (count - length));
-		}
-		cursor += count;
-		break;
+	    if (length >= count) {
+		memcpy(cursor, bytes, count);
+	    } else {
+		memcpy(cursor, bytes, length);
+		memset(cursor + length, pad, count - length);
 	    }
-	    case 'b':
-	    case 'B': {
-		unsigned char *last;
-
-		str = TclGetStringFromObj(objv[arg], &length);
-		arg++;
-		if (count == BINARY_ALL) {
-		    count = length;
-		} else if (count == BINARY_NOCOUNT) {
-		    count = 1;
-		}
-		last = cursor + ((count + 7) / 8);
-		if (count > length) {
-		    count = length;
-		}
-		value = 0;
-		errorString = "binary";
-		if (cmd == 'B') {
-		    for (offset = 0; offset < count; offset++) {
-			value <<= 1;
-			if (str[offset] == '1') {
-			    value |= 1;
-			} else if (str[offset] != '0') {
-			    errorValue = str;
-			    Tcl_DecrRefCount(resultPtr);
-			    goto badValue;
-			}
-			if (((offset + 1) % 8) == 0) {
-			    *cursor++ = (unsigned char) value;
-			    value = 0;
-			}
+	    cursor += count;
+	    Tcl_DecrRefCount(copy);
+	    break;
+	}
+	case 'b':
+	case 'B': {
+	    unsigned char *last;
+
+	    str = TclGetStringFromObj(objv[arg], &length);
+	    arg++;
+	    if (count == BINARY_ALL) {
+		count = length;
+	    } else if (count == BINARY_NOCOUNT) {
+		count = 1;
+	    }
+	    last = cursor + ((count + 7) / 8);
+	    if (count > length) {
+		count = length;
+	    }
+	    value = 0;
+	    errorString = "binary";
+	    if (cmd == 'B') {
+		for (offset = 0; offset < count; offset++) {
+		    value <<= 1;
+		    if (str[offset] == '1') {
+			value |= 1;
+		    } else if (str[offset] != '0') {
+			errorValue = str;
+			Tcl_DecrRefCount(resultPtr);
+			goto badValue;
 		    }
-		} else {
-		    for (offset = 0; offset < count; offset++) {
-			value >>= 1;
-			if (str[offset] == '1') {
-			    value |= 128;
-			} else if (str[offset] != '0') {
-			    errorValue = str;
-			    Tcl_DecrRefCount(resultPtr);
-			    goto badValue;
-			}
-			if (!((offset + 1) % 8)) {
-			    *cursor++ = (unsigned char) value;
-			    value = 0;
-			}
+		    if (((offset + 1) % 8) == 0) {
+			*cursor++ = UCHAR(value);
+			value = 0;
 		    }
 		}
-		if ((offset % 8) != 0) {
-		    if (cmd == 'B') {
-			value <<= 8 - (offset % 8);
-		    } else {
-			value >>= 8 - (offset % 8);
+	    } else {
+		for (offset = 0; offset < count; offset++) {
+		    value >>= 1;
+		    if (str[offset] == '1') {
+			value |= 128;
+		    } else if (str[offset] != '0') {
+			errorValue = str;
+			Tcl_DecrRefCount(resultPtr);
+			goto badValue;
+		    }
+		    if (!((offset + 1) % 8)) {
+			*cursor++ = UCHAR(value);
+			value = 0;
 		    }
-		    *cursor++ = (unsigned char) value;
-		}
-		while (cursor < last) {
-		    *cursor++ = '\0';
 		}
-		break;
 	    }
-	    case 'h':
-	    case 'H': {
-		unsigned char *last;
-		int c;
-
-		str = TclGetStringFromObj(objv[arg], &length);
-		arg++;
-		if (count == BINARY_ALL) {
-		    count = length;
-		} else if (count == BINARY_NOCOUNT) {
-		    count = 1;
-		}
-		last = cursor + ((count + 1) / 2);
-		if (count > length) {
-		    count = length;
+	    if ((offset % 8) != 0) {
+		if (cmd == 'B') {
+		    value <<= 8 - (offset % 8);
+		} else {
+		    value >>= 8 - (offset % 8);
 		}
-		value = 0;
-		errorString = "hexadecimal";
-		if (cmd == 'H') {
-		    for (offset = 0; offset < count; offset++) {
-			value <<= 4;
-			if (!isxdigit(UCHAR(str[offset]))) { /* INTL: digit */
-			    errorValue = str;
-			    Tcl_DecrRefCount(resultPtr);
-			    goto badValue;
-			}
-			c = str[offset] - '0';
-			if (c > 9) {
-			    c += ('0' - 'A') + 10;
-			}
-			if (c > 16) {
-			    c += ('A' - 'a');
-			}
-			value |= (c & 0xf);
-			if (offset % 2) {
-			    *cursor++ = (char) value;
-			    value = 0;
-			}
+		*cursor++ = UCHAR(value);
+	    }
+	    while (cursor < last) {
+		*cursor++ = '\0';
+	    }
+	    break;
+	}
+	case 'h':
+	case 'H': {
+	    unsigned char *last;
+	    int c;
+
+	    str = TclGetStringFromObj(objv[arg], &length);
+	    arg++;
+	    if (count == BINARY_ALL) {
+		count = length;
+	    } else if (count == BINARY_NOCOUNT) {
+		count = 1;
+	    }
+	    last = cursor + ((count + 1) / 2);
+	    if (count > length) {
+		count = length;
+	    }
+	    value = 0;
+	    errorString = "hexadecimal";
+	    if (cmd == 'H') {
+		for (offset = 0; offset < count; offset++) {
+		    value <<= 4;
+		    if (!isxdigit(UCHAR(str[offset]))) {     /* INTL: digit */
+			errorValue = str;
+			Tcl_DecrRefCount(resultPtr);
+			goto badValue;
 		    }
-		} else {
-		    for (offset = 0; offset < count; offset++) {
-			value >>= 4;
-
-			if (!isxdigit(UCHAR(str[offset]))) { /* INTL: digit */
-			    errorValue = str;
-			    Tcl_DecrRefCount(resultPtr);
-			    goto badValue;
-			}
-			c = str[offset] - '0';
-			if (c > 9) {
-			    c += ('0' - 'A') + 10;
-			}
-			if (c > 16) {
-			    c += ('A' - 'a');
-			}
-			value |= ((c << 4) & 0xf0);
-			if (offset % 2) {
-			    *cursor++ = (unsigned char)(value & 0xff);
-			    value = 0;
-			}
+		    c = str[offset] - '0';
+		    if (c > 9) {
+			c += ('0' - 'A') + 10;
 		    }
-		}
-		if (offset % 2) {
-		    if (cmd == 'H') {
-			value <<= 4;
-		    } else {
-			value >>= 4;
+		    if (c > 16) {
+			c += ('A' - 'a');
 		    }
-		    *cursor++ = (unsigned char) value;
-		}
-
-		while (cursor < last) {
-		    *cursor++ = '\0';
-		}
-		break;
-	    }
-	    case 'c':
-	    case 't':
-	    case 's':
-	    case 'S':
-	    case 'n':
-	    case 'i':
-	    case 'I':
-	    case 'm':
-	    case 'w':
-	    case 'W':
-	    case 'r':
-	    case 'R':
-	    case 'd':
-	    case 'q':
-	    case 'Q':
-	    case 'f': {
-		int listc, i;
-		Tcl_Obj **listv;
-
-		if (count == BINARY_NOCOUNT) {
-		    /*
-		     * Note that we are casting away the const-ness of objv,
-		     * but this is safe since we aren't going to modify the
-		     * array.
-		     */
-
-		    listv = (Tcl_Obj**)(objv + arg);
-		    listc = 1;
-		    count = 1;
-		} else {
-		    TclListObjGetElements(interp, objv[arg], &listc, &listv);
-		    if (count == BINARY_ALL) {
-			count = listc;
+		    value |= (c & 0xF);
+		    if (offset % 2) {
+			*cursor++ = (char) value;
+			value = 0;
 		    }
 		}
-		arg++;
-		for (i = 0; i < count; i++) {
-		    if (FormatNumber(interp, cmd, listv[i], &cursor)!=TCL_OK) {
+	    } else {
+		for (offset = 0; offset < count; offset++) {
+		    value >>= 4;
+
+		    if (!isxdigit(UCHAR(str[offset]))) {     /* INTL: digit */
+			errorValue = str;
 			Tcl_DecrRefCount(resultPtr);
-			return TCL_ERROR;
+			goto badValue;
+		    }
+		    c = str[offset] - '0';
+		    if (c > 9) {
+			c += ('0' - 'A') + 10;
+		    }
+		    if (c > 16) {
+			c += ('A' - 'a');
+		    }
+		    value |= ((c << 4) & 0xF0);
+		    if (offset % 2) {
+			*cursor++ = UCHAR(value & 0xFF);
+			value = 0;
 		    }
 		}
-		break;
 	    }
-	    case 'x':
-		if (count == BINARY_NOCOUNT) {
-		    count = 1;
-		}
-		memset(cursor, 0, (size_t) count);
-		cursor += count;
-		break;
-	    case 'X':
-		if (cursor > maxPos) {
-		    maxPos = cursor;
-		}
-		if (count == BINARY_NOCOUNT) {
-		    count = 1;
-		}
-		if ((count == BINARY_ALL) || (count > (cursor - buffer))) {
-		    cursor = buffer;
+	    if (offset % 2) {
+		if (cmd == 'H') {
+		    value <<= 4;
 		} else {
-		    cursor -= count;
-		}
-		break;
-	    case '@':
-		if (cursor > maxPos) {
-		    maxPos = cursor;
+		    value >>= 4;
 		}
+		*cursor++ = UCHAR(value);
+	    }
+
+	    while (cursor < last) {
+		*cursor++ = '\0';
+	    }
+	    break;
+	}
+	case 'c':
+	case 't':
+	case 's':
+	case 'S':
+	case 'n':
+	case 'i':
+	case 'I':
+	case 'm':
+	case 'w':
+	case 'W':
+	case 'r':
+	case 'R':
+	case 'd':
+	case 'q':
+	case 'Q':
+	case 'f': {
+	    Tcl_Size listc, i;
+	    Tcl_Obj **listv;
+
+	    if (count == BINARY_NOCOUNT) {
+		/*
+		 * Note that we are casting away the const-ness of objv, but
+		 * this is safe since we aren't going to modify the array.
+		 */
+
+		listv = (Tcl_Obj **) (objv + arg);
+		listc = 1;
+		count = 1;
+	    } else {
+		TclListObjGetElements(interp, objv[arg], &listc, &listv);
 		if (count == BINARY_ALL) {
-		    cursor = maxPos;
-		} else {
-		    cursor = buffer + count;
+		    count = listc;
 		}
-		break;
 	    }
+	    arg++;
+	    for (i = 0; i < count; i++) {
+		if (FormatNumber(interp, cmd, listv[i], &cursor) != TCL_OK) {
+		    Tcl_DecrRefCount(resultPtr);
+		    return TCL_ERROR;
+		}
+	    }
+	    break;
 	}
-	Tcl_SetObjResult(interp, resultPtr);
-	break;
-    case BINARY_SCAN: {
-	int i;
-	Tcl_Obj *valuePtr, *elementPtr;
-	Tcl_HashTable numberCacheHash;
-	Tcl_HashTable *numberCachePtr;
-
-	if (objc < 4) {
-	    Tcl_WrongNumArgs(interp, 2, objv,
-		    "value formatString ?varName varName ...?");
-	    return TCL_ERROR;
+	case 'x':
+	    if (count == BINARY_NOCOUNT) {
+		count = 1;
+	    }
+	    memset(cursor, 0, count);
+	    cursor += count;
+	    break;
+	case 'X':
+	    if (cursor > maxPos) {
+		maxPos = cursor;
+	    }
+	    if (count == BINARY_NOCOUNT) {
+		count = 1;
+	    }
+	    if ((count == BINARY_ALL) || (count > (cursor - buffer))) {
+		cursor = buffer;
+	    } else {
+		cursor -= count;
+	    }
+	    break;
+	case '@':
+	    if (cursor > maxPos) {
+		maxPos = cursor;
+	    }
+	    if (count == BINARY_ALL) {
+		cursor = maxPos;
+	    } else {
+		cursor = buffer + count;
+	    }
+	    break;
+	}
+    }
+    Tcl_SetObjResult(interp, resultPtr);
+    return TCL_OK;
+
+ badValue:
+    Tcl_ResetResult(interp);
+    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+	    "expected %s string but got \"%s\" instead",
+	    errorString, errorValue));
+    return TCL_ERROR;
+
+ badCount:
+    errorString = "missing count for \"@\" field specifier";
+    goto error;
+
+ badIndex:
+    errorString = "not enough arguments for all format specifiers";
+    goto error;
+
+ badField:
+    {
+	Tcl_UniChar ch = 0;
+	char buf[5] = "";
+
+	TclUtfToUniChar(errorString, &ch);
+	buf[Tcl_UniCharToUtf(ch, buf)] = '\0';
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"bad field specifier \"%s\"", buf));
+	return TCL_ERROR;
+    }
+
+ error:
+    Tcl_SetObjResult(interp, Tcl_NewStringObj(errorString, -1));
+    return TCL_ERROR;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * BinaryScanCmd --
+ *
+ *	This procedure implements the "binary scan" Tcl command.
+ *
+ * Results:
+ *	A standard Tcl result.
+ *
+ * Side effects:
+ *	See the user documentation.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+BinaryScanCmd(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,		/* Current interpreter. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Argument objects. */
+{
+    int arg;			/* Index of next argument to consume. */
+    int value = 0;		/* Current integer value to be packed.
+				 * Initialized to avoid compiler warning. */
+    char cmd;			/* Current format character. */
+    Tcl_Size count;		/* Count associated with current format
+				 * character. */
+    int flags;			/* Format field flags */
+    const char *format;		/* Pointer to current position in format
+				 * string. */
+    Tcl_Obj *resultPtr = NULL;	/* Object holding result buffer. */
+    unsigned char *buffer;	/* Start of result buffer. */
+    const char *errorString;
+    const char *str;
+    Tcl_Size offset, size, length = 0, i;
+
+    Tcl_Obj *valuePtr, *elementPtr;
+    Tcl_HashTable numberCacheHash;
+    Tcl_HashTable *numberCachePtr;
+
+    if (objc < 3) {
+	Tcl_WrongNumArgs(interp, 1, objv,
+		"value formatString ?varName ...?");
+	return TCL_ERROR;
+    }
+    buffer = Tcl_GetBytesFromObj(interp, objv[1], &length);
+    if (buffer == NULL) {
+	return TCL_ERROR;
+    }
+    numberCachePtr = &numberCacheHash;
+    Tcl_InitHashTable(numberCachePtr, TCL_ONE_WORD_KEYS);
+    format = TclGetString(objv[2]);
+    arg = 3;
+    offset = 0;
+    while (*format != '\0') {
+	str = format;
+	flags = 0;
+	if (!GetFormatSpec(&format, &cmd, &count, &flags)) {
+	    goto done;
 	}
-	numberCachePtr = &numberCacheHash;
-	Tcl_InitHashTable(numberCachePtr, TCL_ONE_WORD_KEYS);
-	buffer = Tcl_GetByteArrayFromObj(objv[2], &length);
-	format = TclGetString(objv[3]);
-	cursor = buffer;
-	arg = 4;
-	offset = 0;
-	while (*format != '\0') {
-	    str = format;
-	    flags = 0;
-	    if (!GetFormatSpec(&format, &cmd, &count, &flags)) {
-		goto done;
-	    }
-	    switch (cmd) {
-	    case 'a':
-	    case 'A': {
-		unsigned char *src;
-
-		if (arg >= objc) {
-		    DeleteScanNumberCache(numberCachePtr);
-		    goto badIndex;
+	switch (cmd) {
+	case 'a':
+	case 'A':
+	case 'C': {
+	    unsigned char *src;
+
+	    if (arg >= objc) {
+		DeleteScanNumberCache(numberCachePtr);
+		goto badIndex;
+	    }
+	    if (count == BINARY_ALL) {
+		count = length - offset;
+	    } else {
+		if (count == BINARY_NOCOUNT) {
+		    count = 1;
 		}
-		if (count == BINARY_ALL) {
-		    count = length - offset;
-		} else {
-		    if (count == BINARY_NOCOUNT) {
-			count = 1;
-		    }
-		    if (count > (length - offset)) {
-			goto done;
-		    }
+		if (count > (length - offset)) {
+		    goto done;
 		}
+	    }
 
-		src = buffer + offset;
-		size = count;
+	    src = buffer + offset;
+	    size = count;
 
-		/*
-		 * Trim trailing nulls and spaces, if necessary.
-		 */
+	    /*
+	     * Apply C string semantics or trim trailing
+	     * nulls and spaces, if necessary.
+	     */
 
-		if (cmd == 'A') {
-		    while (size > 0) {
-			if (src[size-1] != '\0' && src[size-1] != ' ') {
-			    break;
-			}
-			size--;
+	    if (cmd == 'C') {
+		for (i = 0; i < size; i++) {
+		    if (src[i] == '\0') {
+			size = i;
+			break;
+		    }
+		}
+	    } else if (cmd == 'A') {
+		while (size > 0) {
+		    if (src[size - 1] != '\0' && src[size - 1] != ' ') {
+			break;
 		    }
+		    size--;
 		}
+	    }
 
-		/*
-		 * Have to do this #ifdef-fery because (as part of defining
-		 * Tcl_NewByteArrayObj) we removed the #def that hides this
-		 * stuff normally. If this code ever gets copied to another
-		 * file, it should be changed back to the simpler version.
-		 */
+	    /*
+	     * Have to do this #ifdef-fery because (as part of defining
+	     * Tcl_NewByteArrayObj) we removed the #def that hides this stuff
+	     * normally. If this code ever gets copied to another file, it
+	     * should be changed back to the simpler version.
+	     */
 
 #ifdef TCL_MEM_DEBUG
-		valuePtr = Tcl_DbNewByteArrayObj(src, size, __FILE__,__LINE__);
+	    valuePtr = Tcl_DbNewByteArrayObj(src, size, __FILE__, __LINE__);
 #else
-		valuePtr = Tcl_NewByteArrayObj(src, size);
+	    valuePtr = Tcl_NewByteArrayObj(src, size);
 #endif /* TCL_MEM_DEBUG */
 
-		resultPtr = Tcl_ObjSetVar2(interp, objv[arg], NULL, valuePtr,
-			TCL_LEAVE_ERR_MSG);
-		arg++;
-		if (resultPtr == NULL) {
-		    DeleteScanNumberCache(numberCachePtr);
-		    return TCL_ERROR;
-		}
-		offset += count;
-		break;
+	    resultPtr = Tcl_ObjSetVar2(interp, objv[arg], NULL, valuePtr,
+		    TCL_LEAVE_ERR_MSG);
+	    arg++;
+	    if (resultPtr == NULL) {
+		DeleteScanNumberCache(numberCachePtr);
+		return TCL_ERROR;
 	    }
-	    case 'b':
-	    case 'B': {
-		unsigned char *src;
-		char *dest;
+	    offset += count;
+	    break;
+	}
+	case 'b':
+	case 'B': {
+	    unsigned char *src;
+	    char *dest;
 
-		if (arg >= objc) {
-		    DeleteScanNumberCache(numberCachePtr);
-		    goto badIndex;
-		}
-		if (count == BINARY_ALL) {
-		    count = (length - offset) * 8;
-		} else {
-		    if (count == BINARY_NOCOUNT) {
-			count = 1;
-		    }
-		    if (count > (length - offset) * 8) {
-			goto done;
-		    }
-		}
-		src = buffer + offset;
-		valuePtr = Tcl_NewObj();
-		Tcl_SetObjLength(valuePtr, count);
-		dest = TclGetString(valuePtr);
-
-		if (cmd == 'b') {
-		    for (i = 0; i < count; i++) {
-			if (i % 8) {
-			    value >>= 1;
-			} else {
-			    value = *src++;
-			}
-			*dest++ = (char) ((value & 1) ? '1' : '0');
-		    }
-		} else {
-		    for (i = 0; i < count; i++) {
-			if (i % 8) {
-			    value <<= 1;
-			} else {
-			    value = *src++;
-			}
-			*dest++ = (char) ((value & 0x80) ? '1' : '0');
-		    }
+	    if (arg >= objc) {
+		DeleteScanNumberCache(numberCachePtr);
+		goto badIndex;
+	    }
+	    if (count == BINARY_ALL) {
+		count = (length - offset) * 8;
+	    } else {
+		if (count == BINARY_NOCOUNT) {
+		    count = 1;
 		}
-
-		resultPtr = Tcl_ObjSetVar2(interp, objv[arg], NULL, valuePtr,
-			TCL_LEAVE_ERR_MSG);
-		arg++;
-		if (resultPtr == NULL) {
-		    DeleteScanNumberCache(numberCachePtr);
-		    return TCL_ERROR;
+		if (count > (length - offset) * 8) {
+		    goto done;
 		}
-		offset += (count + 7) / 8;
-		break;
 	    }
-	    case 'h':
-	    case 'H': {
-		char *dest;
-		unsigned char *src;
-		int i;
-		static const char hexdigit[] = "0123456789abcdef";
+	    src = buffer + offset;
+	    TclNewObj(valuePtr);
+	    Tcl_SetObjLength(valuePtr, count);
+	    dest = TclGetString(valuePtr);
 
-		if (arg >= objc) {
-		    DeleteScanNumberCache(numberCachePtr);
-		    goto badIndex;
-		}
-		if (count == BINARY_ALL) {
-		    count = (length - offset)*2;
-		} else {
-		    if (count == BINARY_NOCOUNT) {
-			count = 1;
-		    }
-		    if (count > (length - offset)*2) {
-			goto done;
+	    if (cmd == 'b') {
+		for (i = 0; i < count; i++) {
+		    if (i % 8) {
+			value >>= 1;
+		    } else {
+			value = *src++;
 		    }
+		    *dest++ = (char) ((value & 1) ? '1' : '0');
 		}
-		src = buffer + offset;
-		valuePtr = Tcl_NewObj();
-		Tcl_SetObjLength(valuePtr, count);
-		dest = TclGetString(valuePtr);
-
-		if (cmd == 'h') {
-		    for (i = 0; i < count; i++) {
-			if (i % 2) {
-			    value >>= 4;
-			} else {
-			    value = *src++;
-			}
-			*dest++ = hexdigit[value & 0xf];
-		    }
-		} else {
-		    for (i = 0; i < count; i++) {
-			if (i % 2) {
-			    value <<= 4;
-			} else {
-			    value = *src++;
-			}
-			*dest++ = hexdigit[(value >> 4) & 0xf];
+	    } else {
+		for (i = 0; i < count; i++) {
+		    if (i % 8) {
+			value <<= 1;
+		    } else {
+			value = *src++;
 		    }
+		    *dest++ = (char) ((value & 0x80) ? '1' : '0');
 		}
+	    }
 
-		resultPtr = Tcl_ObjSetVar2(interp, objv[arg], NULL, valuePtr,
-			TCL_LEAVE_ERR_MSG);
-		arg++;
-		if (resultPtr == NULL) {
-		    DeleteScanNumberCache(numberCachePtr);
-		    return TCL_ERROR;
-		}
-		offset += (count + 1) / 2;
-		break;
+	    resultPtr = Tcl_ObjSetVar2(interp, objv[arg], NULL, valuePtr,
+		    TCL_LEAVE_ERR_MSG);
+	    arg++;
+	    if (resultPtr == NULL) {
+		DeleteScanNumberCache(numberCachePtr);
+		return TCL_ERROR;
 	    }
-	    case 'c':
-		size = 1;
-		goto scanNumber;
-	    case 't':
-	    case 's':
-	    case 'S':
-		size = 2;
-		goto scanNumber;
-	    case 'n':
-	    case 'i':
-	    case 'I':
-		size = 4;
-		goto scanNumber;
-	    case 'm':
-	    case 'w':
-	    case 'W':
-		size = 8;
-		goto scanNumber;
-	    case 'r':
-	    case 'R':
-	    case 'f':
-		size = sizeof(float);
-		goto scanNumber;
-	    case 'q':
-	    case 'Q':
-	    case 'd': {
-		unsigned char *src;
-
-		size = sizeof(double);
-		/* fall through */
-
-	    scanNumber:
-		if (arg >= objc) {
-		    DeleteScanNumberCache(numberCachePtr);
-		    goto badIndex;
-		}
-		if (count == BINARY_NOCOUNT) {
-		    if ((length - offset) < size) {
-			goto done;
-		    }
-		    valuePtr = ScanNumber(buffer+offset, cmd, flags,
-			    &numberCachePtr);
-		    offset += size;
-		} else {
-		    if (count == BINARY_ALL) {
-			count = (length - offset) / size;
-		    }
-		    if ((length - offset) < (count * size)) {
-			goto done;
-		    }
-		    valuePtr = Tcl_NewObj();
-		    src = buffer+offset;
-		    for (i = 0; i < count; i++) {
-			elementPtr = ScanNumber(src, cmd, flags,
-				&numberCachePtr);
-			src += size;
-			Tcl_ListObjAppendElement(NULL, valuePtr, elementPtr);
-		    }
-		    offset += count*size;
-		}
+	    offset += (count + 7) / 8;
+	    break;
+	}
+	case 'h':
+	case 'H': {
+	    char *dest;
+	    unsigned char *src;
+	    static const char hexdigit[] = "0123456789abcdef";
 
-		resultPtr = Tcl_ObjSetVar2(interp, objv[arg], NULL, valuePtr,
-			TCL_LEAVE_ERR_MSG);
-		arg++;
-		if (resultPtr == NULL) {
-		    DeleteScanNumberCache(numberCachePtr);
-		    return TCL_ERROR;
-		}
-		break;
+	    if (arg >= objc) {
+		DeleteScanNumberCache(numberCachePtr);
+		goto badIndex;
 	    }
-	    case 'x':
+	    if (count == BINARY_ALL) {
+		count = (length - offset)*2;
+	    } else {
 		if (count == BINARY_NOCOUNT) {
 		    count = 1;
 		}
-		if ((count == BINARY_ALL) || (count > (length - offset))) {
-		    offset = length;
-		} else {
-		    offset += count;
+		if (count > (length - offset)*2) {
+		    goto done;
 		}
-		break;
-	    case 'X':
-		if (count == BINARY_NOCOUNT) {
-		    count = 1;
+	    }
+	    src = buffer + offset;
+	    TclNewObj(valuePtr);
+	    Tcl_SetObjLength(valuePtr, count);
+	    dest = TclGetString(valuePtr);
+
+	    if (cmd == 'h') {
+		for (i = 0; i < count; i++) {
+		    if (i % 2) {
+			value >>= 4;
+		    } else {
+			value = *src++;
+		    }
+		    *dest++ = hexdigit[value & 0xF];
 		}
-		if ((count == BINARY_ALL) || (count > offset)) {
-		    offset = 0;
-		} else {
-		    offset -= count;
+	    } else {
+		for (i = 0; i < count; i++) {
+		    if (i % 2) {
+			value <<= 4;
+		    } else {
+			value = *src++;
+		    }
+		    *dest++ = hexdigit[(value >> 4) & 0xF];
 		}
-		break;
-	    case '@':
-		if (count == BINARY_NOCOUNT) {
-		    DeleteScanNumberCache(numberCachePtr);
-		    goto badCount;
+	    }
+
+	    resultPtr = Tcl_ObjSetVar2(interp, objv[arg], NULL, valuePtr,
+		    TCL_LEAVE_ERR_MSG);
+	    arg++;
+	    if (resultPtr == NULL) {
+		DeleteScanNumberCache(numberCachePtr);
+		return TCL_ERROR;
+	    }
+	    offset += (count + 1) / 2;
+	    break;
+	}
+	case 'c':
+	    size = 1;
+	    goto scanNumber;
+	case 't':
+	case 's':
+	case 'S':
+	    size = 2;
+	    goto scanNumber;
+	case 'n':
+	case 'i':
+	case 'I':
+	    size = 4;
+	    goto scanNumber;
+	case 'm':
+	case 'w':
+	case 'W':
+	    size = 8;
+	    goto scanNumber;
+	case 'r':
+	case 'R':
+	case 'f':
+	    size = sizeof(float);
+	    goto scanNumber;
+	case 'q':
+	case 'Q':
+	case 'd': {
+	    unsigned char *src;
+
+	    size = sizeof(double);
+	    /* fall through */
+
+	scanNumber:
+	    if (arg >= objc) {
+		DeleteScanNumberCache(numberCachePtr);
+		goto badIndex;
+	    }
+	    if (count == BINARY_NOCOUNT) {
+		if (length < (size + offset)) {
+		    goto done;
 		}
-		if ((count == BINARY_ALL) || (count > length)) {
-		    offset = length;
-		} else {
-		    offset = count;
+		valuePtr = ScanNumber(buffer+offset, cmd, flags,
+			&numberCachePtr);
+		offset += size;
+	    } else {
+		if (count == BINARY_ALL) {
+		    count = (length - offset) / size;
 		}
-		break;
-	    default:
+		if ((length - offset) < (count * size)) {
+		    goto done;
+		}
+		TclNewObj(valuePtr);
+		src = buffer + offset;
+		for (i = 0; i < count; i++) {
+		    elementPtr = ScanNumber(src, cmd, flags, &numberCachePtr);
+		    src += size;
+		    Tcl_ListObjAppendElement(NULL, valuePtr, elementPtr);
+		}
+		offset += count * size;
+	    }
+
+	    resultPtr = Tcl_ObjSetVar2(interp, objv[arg], NULL, valuePtr,
+		    TCL_LEAVE_ERR_MSG);
+	    arg++;
+	    if (resultPtr == NULL) {
 		DeleteScanNumberCache(numberCachePtr);
-		errorString = str;
-		goto badField;
+		return TCL_ERROR;
 	    }
+	    break;
 	}
+	case 'x':
+	    if (count == BINARY_NOCOUNT) {
+		count = 1;
+	    }
+	    if ((count == BINARY_ALL) || (count > (length - offset))) {
+		offset = length;
+	    } else {
+		offset += count;
+	    }
+	    break;
+	case 'X':
+	    if (count == BINARY_NOCOUNT) {
+		count = 1;
+	    }
+	    if ((count == BINARY_ALL) || (count > offset)) {
+		offset = 0;
+	    } else {
+		offset -= count;
+	    }
+	    break;
+	case '@':
+	    if (count == BINARY_NOCOUNT) {
+		DeleteScanNumberCache(numberCachePtr);
+		goto badCount;
+	    }
+	    if ((count == BINARY_ALL) || (count > length)) {
+		offset = length;
+	    } else {
+		offset = count;
+	    }
+	    break;
+	default:
+	    DeleteScanNumberCache(numberCachePtr);
+	    errorString = str;
+	    goto badField;
+	}
+    }
 
-	/*
-	 * Set the result to the last position of the cursor.
-	 */
+    /*
+     * Set the result to the last position of the cursor.
+     */
 
-    done:
-	Tcl_SetObjResult(interp, Tcl_NewLongObj(arg - 4));
-	DeleteScanNumberCache(numberCachePtr);
-	break;
-    }
-    }
-    return TCL_OK;
+ done:
+    Tcl_SetObjResult(interp, Tcl_NewWideIntObj(arg - 3));
+    DeleteScanNumberCache(numberCachePtr);
 
-  badValue:
-    Tcl_ResetResult(interp);
-    Tcl_AppendResult(interp, "expected ", errorString,
-	    " string but got \"", errorValue, "\" instead", NULL);
-    return TCL_ERROR;
+    return TCL_OK;
 
-  badCount:
+ badCount:
     errorString = "missing count for \"@\" field specifier";
     goto error;
 
-  badIndex:
+ badIndex:
     errorString = "not enough arguments for all format specifiers";
     goto error;
 
-  badField:
+ badField:
     {
-	Tcl_UniChar ch;
-	char buf[TCL_UTF_MAX + 1];
+	Tcl_UniChar ch = 0;
+	char buf[5] = "";
 
-	Tcl_UtfToUniChar(errorString, &ch);
+	TclUtfToUniChar(errorString, &ch);
 	buf[Tcl_UniCharToUtf(ch, buf)] = '\0';
-	Tcl_AppendResult(interp, "bad field specifier \"", buf, "\"", NULL);
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"bad field specifier \"%s\"", buf));
 	return TCL_ERROR;
     }
 
-  error:
-    Tcl_AppendResult(interp, errorString, NULL);
+ error:
+    Tcl_SetObjResult(interp, Tcl_NewStringObj(errorString, -1));
     return TCL_ERROR;
 }
 
@@ -1493,9 +1732,9 @@ Tcl_BinaryObjCmd(
 
 static int
 GetFormatSpec(
-    char **formatPtr,		/* Pointer to format string. */
+    const char **formatPtr,	/* Pointer to format string. */
     char *cmdPtr,		/* Pointer to location of command char. */
-    int *countPtr,		/* Pointer to repeat count value. */
+    Tcl_Size *countPtr,		/* Pointer to repeat count value. */
     int *flagsPtr)		/* Pointer to field flags */
 {
     /*
@@ -1522,23 +1761,23 @@ GetFormatSpec(
     (*formatPtr)++;
     if (**formatPtr == 'u') {
 	(*formatPtr)++;
-	(*flagsPtr) |= BINARY_UNSIGNED;
+	*flagsPtr |= BINARY_UNSIGNED;
     }
     if (**formatPtr == '*') {
 	(*formatPtr)++;
-	(*countPtr) = BINARY_ALL;
+	*countPtr = BINARY_ALL;
     } else if (isdigit(UCHAR(**formatPtr))) { /* INTL: digit */
-	unsigned long int count;
+	unsigned long long count;
 
 	errno = 0;
-	count = strtoul(*formatPtr, formatPtr, 10);
-	if (errno || (count > (unsigned long) INT_MAX)) {
-	    (*countPtr) = INT_MAX;
+	count = strtoull(*formatPtr, (char **) formatPtr, 10);
+	if (errno || (count > TCL_SIZE_MAX)) {
+	    *countPtr = TCL_SIZE_MAX;
 	} else {
-	    (*countPtr) = (int) count;
+	    *countPtr = count;
 	}
     } else {
-	(*countPtr) = BINARY_NOCOUNT;
+	*countPtr = BINARY_NOCOUNT;
     }
     return 1;
 }
@@ -1550,7 +1789,7 @@ GetFormatSpec(
  *
  *	This routine determines, if bytes of a number need to be re-ordered,
  *	and returns a numeric code indicating the re-ordering to be done.
- *	This depends on the endiannes of the machine and the desired format.
+ *	This depends on the endianness of the machine and the desired format.
  *	It is in effect a table (whose contents depend on the endianness of
  *	the system) describing whether a value needs reversing or not. Anyone
  *	porting the code to a big-endian platform should take care to make
@@ -1661,16 +1900,16 @@ static void
 CopyNumber(
     const void *from,		/* source */
     void *to,			/* destination */
-    unsigned int length,	/* Number of bytes to copy */
+    size_t length,		/* Number of bytes to copy */
     int type)			/* What type of thing are we copying? */
 {
     switch (NeedReversing(type)) {
-    case 0: 
+    case 0:
 	memcpy(to, from, length);
 	break;
     case 1: {
-	const unsigned char *fromPtr = from;
-	unsigned char *toPtr = to;
+	const unsigned char *fromPtr = (const unsigned char *)from;
+	unsigned char *toPtr = (unsigned char *)to;
 
 	switch (length) {
 	case 4:
@@ -1693,8 +1932,8 @@ CopyNumber(
 	break;
     }
     case 2: {
-	const unsigned char *fromPtr = from;
-	unsigned char *toPtr = to;
+	const unsigned char *fromPtr = (const unsigned char *)from;
+	unsigned char *toPtr = (unsigned char *)to;
 
 	toPtr[0] = fromPtr[4];
 	toPtr[1] = fromPtr[5];
@@ -1707,8 +1946,8 @@ CopyNumber(
 	break;
     }
     case 3: {
-	const unsigned char *fromPtr = from;
-	unsigned char *toPtr = to;
+	const unsigned char *fromPtr = (const unsigned char *)from;
+	unsigned char *toPtr = (unsigned char *)to;
 
 	toPtr[0] = fromPtr[3];
 	toPtr[1] = fromPtr[2];
@@ -1748,7 +1987,6 @@ FormatNumber(
     Tcl_Obj *src,		/* Number to format. */
     unsigned char **cursorPtr)	/* Pointer to index into destination buffer. */
 {
-    long value;
     double dvalue;
     Tcl_WideInt wvalue;
     float fvalue;
@@ -1764,10 +2002,11 @@ FormatNumber(
 	 */
 
 	if (Tcl_GetDoubleFromObj(interp, src, &dvalue) != TCL_OK) {
-	    if (src->typePtr != &tclDoubleType) {
+	    const Tcl_ObjInternalRep *irPtr = TclFetchInternalRep(src, &tclDoubleType);
+	    if (irPtr == NULL) {
 		return TCL_ERROR;
 	    }
-	    dvalue = src->internalRep.doubleValue;
+	    dvalue = irPtr->doubleValue;
 	}
 	CopyNumber(&dvalue, *cursorPtr, sizeof(double), type);
 	*cursorPtr += sizeof(double);
@@ -1783,10 +2022,12 @@ FormatNumber(
 	 */
 
 	if (Tcl_GetDoubleFromObj(interp, src, &dvalue) != TCL_OK) {
-	    if (src->typePtr != &tclDoubleType) {
+	    const Tcl_ObjInternalRep *irPtr = TclFetchInternalRep(src, &tclDoubleType);
+
+	    if (irPtr == NULL) {
 		return TCL_ERROR;
 	    }
-	    dvalue = src->internalRep.doubleValue;
+	    dvalue = irPtr->doubleValue;
 	}
 
 	/*
@@ -1795,8 +2036,12 @@ FormatNumber(
 	 * valid range for float.
 	 */
 
-	if (fabs(dvalue) > (double)FLT_MAX) {
+	if (fabs(dvalue) > (double) FLT_MAX) {
+	    if (fabs(dvalue) > (FLT_MAX + pow(2, (FLT_MAX_EXP - FLT_MANT_DIG - 1)))) {
+		fvalue = (dvalue >= 0.0) ? INFINITY : -INFINITY;	// c99
+	    } else {
 	    fvalue = (dvalue >= 0.0) ? FLT_MAX : -FLT_MAX;
+	    }
 	} else {
 	    fvalue = (float) dvalue;
 	}
@@ -1810,27 +2055,27 @@ FormatNumber(
     case 'w':
     case 'W':
     case 'm':
-	if (Tcl_GetWideIntFromObj(interp, src, &wvalue) != TCL_OK) {
+	if (TclGetWideBitsFromObj(interp, src, &wvalue) != TCL_OK) {
 	    return TCL_ERROR;
 	}
 	if (NeedReversing(type)) {
-	    *(*cursorPtr)++ = (unsigned char) wvalue;
-	    *(*cursorPtr)++ = (unsigned char) (wvalue >> 8);
-	    *(*cursorPtr)++ = (unsigned char) (wvalue >> 16);
-	    *(*cursorPtr)++ = (unsigned char) (wvalue >> 24);
-	    *(*cursorPtr)++ = (unsigned char) (wvalue >> 32);
-	    *(*cursorPtr)++ = (unsigned char) (wvalue >> 40);
-	    *(*cursorPtr)++ = (unsigned char) (wvalue >> 48);
-	    *(*cursorPtr)++ = (unsigned char) (wvalue >> 56);
+	    *(*cursorPtr)++ = UCHAR(wvalue);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 8);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 16);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 24);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 32);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 40);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 48);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 56);
 	} else {
-	    *(*cursorPtr)++ = (unsigned char) (wvalue >> 56);
-	    *(*cursorPtr)++ = (unsigned char) (wvalue >> 48);
-	    *(*cursorPtr)++ = (unsigned char) (wvalue >> 40);
-	    *(*cursorPtr)++ = (unsigned char) (wvalue >> 32);
-	    *(*cursorPtr)++ = (unsigned char) (wvalue >> 24);
-	    *(*cursorPtr)++ = (unsigned char) (wvalue >> 16);
-	    *(*cursorPtr)++ = (unsigned char) (wvalue >> 8);
-	    *(*cursorPtr)++ = (unsigned char) wvalue;
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 56);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 48);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 40);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 32);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 24);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 16);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 8);
+	    *(*cursorPtr)++ = UCHAR(wvalue);
 	}
 	return TCL_OK;
 
@@ -1840,19 +2085,19 @@ FormatNumber(
     case 'i':
     case 'I':
     case 'n':
-	if (TclGetLongFromObj(interp, src, &value) != TCL_OK) {
+	if (TclGetWideBitsFromObj(interp, src, &wvalue) != TCL_OK) {
 	    return TCL_ERROR;
 	}
 	if (NeedReversing(type)) {
-	    *(*cursorPtr)++ = (unsigned char) value;
-	    *(*cursorPtr)++ = (unsigned char) (value >> 8);
-	    *(*cursorPtr)++ = (unsigned char) (value >> 16);
-	    *(*cursorPtr)++ = (unsigned char) (value >> 24);
+	    *(*cursorPtr)++ = UCHAR(wvalue);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 8);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 16);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 24);
 	} else {
-	    *(*cursorPtr)++ = (unsigned char) (value >> 24);
-	    *(*cursorPtr)++ = (unsigned char) (value >> 16);
-	    *(*cursorPtr)++ = (unsigned char) (value >> 8);
-	    *(*cursorPtr)++ = (unsigned char) value;
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 24);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 16);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 8);
+	    *(*cursorPtr)++ = UCHAR(wvalue);
 	}
 	return TCL_OK;
 
@@ -1862,15 +2107,15 @@ FormatNumber(
     case 's':
     case 'S':
     case 't':
-	if (TclGetLongFromObj(interp, src, &value) != TCL_OK) {
+	if (TclGetWideBitsFromObj(interp, src, &wvalue) != TCL_OK) {
 	    return TCL_ERROR;
 	}
 	if (NeedReversing(type)) {
-	    *(*cursorPtr)++ = (unsigned char) value;
-	    *(*cursorPtr)++ = (unsigned char) (value >> 8);
+	    *(*cursorPtr)++ = UCHAR(wvalue);
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 8);
 	} else {
-	    *(*cursorPtr)++ = (unsigned char) (value >> 8);
-	    *(*cursorPtr)++ = (unsigned char) value;
+	    *(*cursorPtr)++ = UCHAR(wvalue >> 8);
+	    *(*cursorPtr)++ = UCHAR(wvalue);
 	}
 	return TCL_OK;
 
@@ -1878,10 +2123,10 @@ FormatNumber(
 	 * 8-bit integer values.
 	 */
     case 'c':
-	if (TclGetLongFromObj(interp, src, &value) != TCL_OK) {
+	if (TclGetWideBitsFromObj(interp, src, &wvalue) != TCL_OK) {
 	    return TCL_ERROR;
 	}
-	*(*cursorPtr)++ = (unsigned char) value;
+	*(*cursorPtr)++ = UCHAR(wvalue);
 	return TCL_OK;
 
     default:
@@ -1916,9 +2161,9 @@ ScanNumber(
     int type,			/* Format character from "binary scan" */
     int flags,			/* Format field flags */
     Tcl_HashTable **numberCachePtrPtr)
-				/* Place to look for cache of scanned
-				 * value objects, or NULL if too many
-				 * different numbers have been scanned. */
+				/* Place to look for cache of scanned value
+				 * objects, or NULL if too many different
+				 * numbers have been scanned. */
 {
     long value;
     float fvalue;
@@ -1981,17 +2226,18 @@ ScanNumber(
 	    value = (long) (buffer[0]
 		    + (buffer[1] << 8)
 		    + (buffer[2] << 16)
-		    + (((long)buffer[3]) << 24));
+		    + (((unsigned long)buffer[3]) << 24));
 	} else {
 	    value = (long) (buffer[3]
 		    + (buffer[2] << 8)
 		    + (buffer[1] << 16)
-		    + (((long)buffer[0]) << 24));
+		    + (((unsigned long) buffer[0]) << 24));
 	}
 
 	/*
 	 * Check to see if the value was sign extended properly on systems
 	 * where an int is more than 32-bits.
+	 *
 	 * We avoid caching unsigned integers as we cannot distinguish between
 	 * 32bit signed and unsigned in the hash (short and char are ok).
 	 */
@@ -1999,28 +2245,29 @@ ScanNumber(
 	if (flags & BINARY_UNSIGNED) {
 	    return Tcl_NewWideIntObj((Tcl_WideInt)(unsigned long)value);
 	}
-	if ((value & (((unsigned int)1)<<31)) && (value > 0)) {
-	    value -= (((unsigned int)1)<<31);
-	    value -= (((unsigned int)1)<<31);
+	if ((value & (1U << 31)) && (value > 0)) {
+	    value -= (1U << 31);
+	    value -= (1U << 31);
 	}
 
     returnNumericObject:
 	if (*numberCachePtrPtr == NULL) {
-	    return Tcl_NewLongObj(value);
+	    return Tcl_NewWideIntObj(value);
 	} else {
-	    register Tcl_HashTable *tablePtr = *numberCachePtrPtr;
-	    register Tcl_HashEntry *hPtr;
+	    Tcl_HashTable *tablePtr = *numberCachePtrPtr;
+	    Tcl_HashEntry *hPtr;
 	    int isNew;
 
 	    hPtr = Tcl_CreateHashEntry(tablePtr, INT2PTR(value), &isNew);
 	    if (!isNew) {
-		return (Tcl_Obj *) Tcl_GetHashValue(hPtr);
+		return (Tcl_Obj *)Tcl_GetHashValue(hPtr);
 	    }
 	    if (tablePtr->numEntries <= BINARY_SCAN_MAX_CACHE) {
-		register Tcl_Obj *objPtr = Tcl_NewLongObj(value);
+		Tcl_Obj *objPtr;
 
+		TclNewIntObj(objPtr, value);
 		Tcl_IncrRefCount(objPtr);
-		Tcl_SetHashValue(hPtr, (ClientData) objPtr);
+		Tcl_SetHashValue(hPtr, objPtr);
 		return objPtr;
 	    }
 
@@ -2035,7 +2282,7 @@ ScanNumber(
 
 	    DeleteScanNumberCache(tablePtr);
 	    *numberCachePtrPtr = NULL;
-	    return Tcl_NewLongObj(value);
+	    return Tcl_NewWideIntObj(value);
 	}
 
 	/*
@@ -2069,8 +2316,9 @@ ScanNumber(
 	    Tcl_Obj *bigObj = NULL;
 	    mp_int big;
 
-	    TclBNInitBignumFromWideUInt(&big, uwvalue);
-	    bigObj = Tcl_NewBignumObj(&big);
+	    if (mp_init_u64(&big, uwvalue) == MP_OKAY) {
+		bigObj = Tcl_NewBignumObj(&big);
+	    }
 	    return bigObj;
 	}
 	return Tcl_NewWideIntObj((Tcl_WideInt) uwvalue);
@@ -2136,7 +2384,7 @@ DeleteScanNumberCache(
 
     hEntry = Tcl_FirstHashEntry(numberCachePtr, &search);
     while (hEntry != NULL) {
-	register Tcl_Obj *value = Tcl_GetHashValue(hEntry);
+	Tcl_Obj *value = (Tcl_Obj *)Tcl_GetHashValue(hEntry);
 
 	if (value != NULL) {
 	    Tcl_DecrRefCount(value);
@@ -2147,6 +2395,825 @@ DeleteScanNumberCache(
 }
 
 /*
+ * ----------------------------------------------------------------------
+ *
+ * NOTES --
+ *
+ *	Some measurements show that it is faster to use a table to perform
+ *	uuencode and base64 value encoding than to calculate the output (at
+ *	least on intel P4 arch).
+ *
+ *	Conversely using a lookup table for the decoding is slower than just
+ *	calculating the values. We therefore use the fastest of each method.
+ *
+ *	Presumably this has to do with the size of the tables. The base64
+ *	decode table is 255 bytes while the encode table is only 65 bytes. The
+ *	choice likely depends on CPU memory cache sizes.
+ */
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * BinaryEncodeHex --
+ *
+ *	Implement the [binary encode hex] binary encoding. clientData must be
+ *	a table to convert values to hexadecimal digits.
+ *
+ * Results:
+ *	Interp result set to an encoded byte array object
+ *
+ * Side effects:
+ *	None
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+BinaryEncodeHex(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    Tcl_Obj *resultObj = NULL;
+    unsigned char *data = NULL;
+    unsigned char *cursor = NULL;
+    Tcl_Size offset = 0, count = 0;
+
+    if (objc != 2) {
+	Tcl_WrongNumArgs(interp, 1, objv, "data");
+	return TCL_ERROR;
+    }
+
+    data = Tcl_GetBytesFromObj(interp, objv[1], &count);
+    if (data == NULL) {
+	return TCL_ERROR;
+    }
+
+    TclNewObj(resultObj);
+    cursor = Tcl_SetByteArrayLength(resultObj, count * 2);
+    for (offset = 0; offset < count; ++offset) {
+	*cursor++ = HexDigits[(data[offset] >> 4) & 0x0F];
+	*cursor++ = HexDigits[data[offset] & 0x0F];
+    }
+    Tcl_SetObjResult(interp, resultObj);
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * BinaryDecodeHex --
+ *
+ *	Implement the [binary decode hex] binary encoding.
+ *
+ * Results:
+ *	Interp result set to an decoded byte array object
+ *
+ * Side effects:
+ *	None
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+BinaryDecodeHex(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    Tcl_Obj *resultObj = NULL;
+    unsigned char *data, *datastart, *dataend;
+    unsigned char *begin, *cursor, c;
+    int i, index, value, pure = 1, strict = 0;
+    Tcl_Size size, cut = 0, count = 0;
+    int ucs4;
+    enum {OPT_STRICT };
+    static const char *const optStrings[] = { "-strict", NULL };
+
+    if (objc < 2 || objc > 3) {
+	Tcl_WrongNumArgs(interp, 1, objv, "?options? data");
+	return TCL_ERROR;
+    }
+    for (i = 1; i < objc - 1; ++i) {
+	if (Tcl_GetIndexFromObj(interp, objv[i], optStrings, "option",
+		TCL_EXACT, &index) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+	switch (index) {
+	case OPT_STRICT:
+	    strict = 1;
+	    break;
+	}
+    }
+
+    TclNewObj(resultObj);
+    data = Tcl_GetBytesFromObj(NULL, objv[objc - 1], &count);
+    if (data == NULL) {
+	pure = 0;
+	data = (unsigned char *)TclGetStringFromObj(objv[objc - 1], &count);
+    }
+    datastart = data;
+    dataend = data + count;
+    size = (count + 1) / 2;
+    begin = cursor = Tcl_SetByteArrayLength(resultObj, size);
+    while (data < dataend) {
+	value = 0;
+	for (i = 0 ; i < 2 ; i++) {
+	    if (data >= dataend) {
+		value <<= 4;
+		break;
+	    }
+
+	    c = *data++;
+	    if (!isxdigit(UCHAR(c))) {
+		if (strict || !TclIsSpaceProc(c)) {
+		    goto badChar;
+		}
+		i--;
+		continue;
+	    }
+
+	    value <<= 4;
+	    c -= '0';
+	    if (c > 9) {
+		c += ('0' - 'A') + 10;
+	    }
+	    if (c > 16) {
+		c += ('A' - 'a');
+	    }
+	    value |= c & 0xF;
+	}
+	if (i < 2) {
+	    cut++;
+	}
+	*cursor++ = UCHAR(value);
+	value = 0;
+    }
+    if (cut > size) {
+	cut = size;
+    }
+    Tcl_SetByteArrayLength(resultObj, cursor - begin - cut);
+    Tcl_SetObjResult(interp, resultObj);
+    return TCL_OK;
+
+  badChar:
+    if (pure) {
+	ucs4 = c;
+    } else {
+	TclUtfToUniChar((const char *)(data - 1), &ucs4);
+    }
+    TclDecrRefCount(resultObj);
+    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+	    "invalid hexadecimal digit \"%c\" (U+%06X) at position %"
+	    TCL_Z_MODIFIER "u", ucs4, ucs4, data - datastart - 1));
+    Tcl_SetErrorCode(interp, "TCL", "BINARY", "DECODE", "INVALID", (char *)NULL);
+    return TCL_ERROR;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * BinaryEncode64 --
+ *
+ *	This procedure implements the "binary encode base64" Tcl command.
+ *
+ * Results:
+ *	The base64 encoded value prescribed by the input arguments.
+ *
+ *----------------------------------------------------------------------
+ */
+
+#define OUTPUT(c) \
+    do {						\
+	*cursor++ = (c);				\
+	outindex++;					\
+	if (maxlen > 0 && cursor != limit) {		\
+	    if (outindex == maxlen) {			\
+		memcpy(cursor, wrapchar, wrapcharlen);	\
+		cursor += wrapcharlen;			\
+		outindex = 0;				\
+	    }						\
+	}						\
+	if (cursor > limit) {				\
+	    Tcl_Panic("limit hit");			\
+	}						\
+    } while (0)
+
+static int
+BinaryEncode64(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    Tcl_Obj *resultObj;
+    unsigned char *data, *limit;
+    Tcl_WideInt maxlen = 0;
+    const char *wrapchar = "\n";
+    Tcl_Size wrapcharlen = 1;
+    int index, purewrap = 1;
+    Tcl_Size i, offset, size, outindex = 0, count = 0;
+    enum { OPT_MAXLEN, OPT_WRAPCHAR };
+    static const char *const optStrings[] = { "-maxlen", "-wrapchar", NULL };
+
+    if (objc < 2 || objc % 2 != 0) {
+	Tcl_WrongNumArgs(interp, 1, objv,
+		"?-maxlen len? ?-wrapchar char? data");
+	return TCL_ERROR;
+    }
+    for (i = 1; i < objc - 1; i += 2) {
+	if (Tcl_GetIndexFromObj(interp, objv[i], optStrings, "option",
+		TCL_EXACT, &index) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+	switch (index) {
+	case OPT_MAXLEN:
+	    if (TclGetWideIntFromObj(interp, objv[i + 1], &maxlen) != TCL_OK) {
+		return TCL_ERROR;
+	    }
+	    if (maxlen < 0) {
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			"line length out of range", -1));
+		Tcl_SetErrorCode(interp, "TCL", "BINARY", "ENCODE",
+			"LINE_LENGTH", (char *)NULL);
+		return TCL_ERROR;
+	    }
+	    break;
+	case OPT_WRAPCHAR:
+	    wrapchar = (const char *)Tcl_GetBytesFromObj(NULL,
+		    objv[i + 1], &wrapcharlen);
+	    if (wrapchar == NULL) {
+		purewrap = 0;
+		wrapchar = TclGetStringFromObj(objv[i + 1], &wrapcharlen);
+	    }
+	    break;
+	}
+    }
+    if (wrapcharlen == 0) {
+	maxlen = 0;
+    }
+
+    data = Tcl_GetBytesFromObj(interp, objv[objc - 1], &count);
+    if (data == NULL) {
+	return TCL_ERROR;
+    }
+    TclNewObj(resultObj);
+    if (count > 0) {
+	unsigned char *cursor = NULL;
+
+	size = (((count * 4) / 3) + 3) & ~3;	/* ensure 4 byte chunks */
+	if (maxlen > 0 && size > maxlen) {
+	    Tcl_Size adjusted = size + (wrapcharlen * (size / maxlen));
+
+	    if (size % maxlen == 0) {
+		adjusted -= wrapcharlen;
+	    }
+	    size = adjusted;
+
+	    if (purewrap == 0) {
+		/* Wrapchar is (possibly) non-byte, so build result as
+		 * general string, not bytearray */
+		Tcl_SetObjLength(resultObj, size);
+		cursor = (unsigned char *) TclGetString(resultObj);
+	    }
+	}
+	if (cursor == NULL) {
+	    cursor = Tcl_SetByteArrayLength(resultObj, size);
+	}
+	limit = cursor + size;
+	for (offset = 0; offset < count; offset += 3) {
+	    unsigned char d[3] = {0, 0, 0};
+
+	    for (i = 0; i < 3 && offset + i < count; ++i) {
+		d[i] = data[offset + i];
+	    }
+	    OUTPUT(B64Digits[d[0] >> 2]);
+	    OUTPUT(B64Digits[((d[0] & 0x03) << 4) | (d[1] >> 4)]);
+	    if (offset + 1 < count) {
+		OUTPUT(B64Digits[((d[1] & 0x0F) << 2) | (d[2] >> 6)]);
+	    } else {
+		OUTPUT(B64Digits[64]);
+	    }
+	    if (offset+2 < count) {
+		OUTPUT(B64Digits[d[2] & 0x3F]);
+	    } else {
+		OUTPUT(B64Digits[64]);
+	    }
+	}
+    }
+    Tcl_SetObjResult(interp, resultObj);
+    return TCL_OK;
+}
+#undef OUTPUT
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * BinaryEncodeUu --
+ *
+ *	This implements the uuencode binary encoding. Input is broken into 6
+ *	bit chunks and a lookup table is used to turn these values into output
+ *	characters. This differs from the generic code above in that line
+ *	lengths are also encoded.
+ *
+ * Results:
+ *	Interp result set to an encoded byte array object
+ *
+ * Side effects:
+ *	None
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+BinaryEncodeUu(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    Tcl_Obj *resultObj;
+    unsigned char *data, *start, *cursor;
+    int i, bits, index;
+    unsigned int n;
+    int lineLength = 61;
+    const unsigned char SingleNewline[] = { UCHAR('\n') };
+    const unsigned char *wrapchar = SingleNewline;
+    Tcl_Size j, rawLength, offset, count = 0, wrapcharlen = sizeof(SingleNewline);
+    enum { OPT_MAXLEN, OPT_WRAPCHAR };
+    static const char *const optStrings[] = { "-maxlen", "-wrapchar", NULL };
+
+    if (objc < 2 || objc % 2 != 0) {
+	Tcl_WrongNumArgs(interp, 1, objv,
+		"?-maxlen len? ?-wrapchar char? data");
+	return TCL_ERROR;
+    }
+    for (i = 1; i < objc - 1; i += 2) {
+	if (Tcl_GetIndexFromObj(interp, objv[i], optStrings, "option",
+		TCL_EXACT, &index) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+	switch (index) {
+	case OPT_MAXLEN:
+	    if (Tcl_GetIntFromObj(interp, objv[i + 1],
+		    &lineLength) != TCL_OK) {
+		return TCL_ERROR;
+	    }
+	    if (lineLength < 5 || lineLength > 85) {
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			"line length out of range", -1));
+		Tcl_SetErrorCode(interp, "TCL", "BINARY", "ENCODE",
+			"LINE_LENGTH", (char *)NULL);
+		return TCL_ERROR;
+	    }
+	    lineLength = ((lineLength - 1) & -4) + 1; /* 5, 9, 13 ... */
+	    break;
+	case OPT_WRAPCHAR:
+	    wrapchar = (const unsigned char *)TclGetStringFromObj(
+		    objv[i + 1], &wrapcharlen);
+	    {
+		const unsigned char *p = wrapchar;
+		Tcl_Size numBytes = wrapcharlen;
+
+		while (numBytes) {
+		    switch (*p) {
+			case '\t':
+			case '\v':
+			case '\f':
+			case '\r':
+			    p++; numBytes--;
+			    continue;
+			case '\n':
+			    numBytes--;
+			    break;
+			default:
+			badwrap:
+			    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+				    "invalid wrapchar; will defeat decoding",
+				    -1));
+			    Tcl_SetErrorCode(interp, "TCL", "BINARY",
+				    "ENCODE", "WRAPCHAR", (char *)NULL);
+			    return TCL_ERROR;
+		    }
+		}
+		if (numBytes) {
+		    goto badwrap;
+		}
+	    }
+	    break;
+	}
+    }
+
+    /*
+     * Allocate the buffer. This is a little bit too long, but is "good
+     * enough".
+     */
+
+    offset = 0;
+    data = Tcl_GetBytesFromObj(interp, objv[objc - 1], &count);
+    if (data == NULL) {
+	return TCL_ERROR;
+    }
+    TclNewObj(resultObj);
+    rawLength = (lineLength - 1) * 3 / 4;
+    start = cursor = Tcl_SetByteArrayLength(resultObj,
+	    (lineLength + wrapcharlen) *
+	    ((count + (rawLength - 1)) / rawLength));
+    n = bits = 0;
+
+    /*
+     * Encode the data. Each output line first has the length of raw data
+     * encoded by the output line described in it by one encoded byte, then
+     * the encoded data follows (encoding each 6 bits as one character).
+     * Encoded lines are always terminated by a newline.
+     */
+
+    while (offset < count) {
+	Tcl_Size lineLen = count - offset;
+
+	if (lineLen > rawLength) {
+	    lineLen = rawLength;
+	}
+	*cursor++ = UueDigits[lineLen];
+	for (i = 0 ; i < lineLen ; i++) {
+	    n <<= 8;
+	    n |= data[offset++];
+	    for (bits += 8; bits > 6 ; bits -= 6) {
+		*cursor++ = UueDigits[(n >> (bits - 6)) & 0x3F];
+	    }
+	}
+	if (bits > 0) {
+	    n <<= 8;
+	    *cursor++ = UueDigits[(n >> (bits + 2)) & 0x3F];
+	    bits = 0;
+	}
+	for (j = 0 ; j < wrapcharlen ; ++j) {
+	    *cursor++ = wrapchar[j];
+	}
+    }
+
+    /*
+     * Fix the length of the output bytearray.
+     */
+
+    Tcl_SetByteArrayLength(resultObj, cursor - start);
+    Tcl_SetObjResult(interp, resultObj);
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * BinaryDecodeUu --
+ *
+ *	Decode a uuencoded string.
+ *
+ * Results:
+ *	Interp result set to an byte array object
+ *
+ * Side effects:
+ *	None
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+BinaryDecodeUu(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    Tcl_Obj *resultObj = NULL;
+    unsigned char *data, *datastart, *dataend;
+    unsigned char *begin, *cursor;
+    int i, index, pure = 1, strict = 0, lineLen;
+    Tcl_Size size, count = 0;
+    unsigned char c;
+    int ucs4;
+    enum { OPT_STRICT };
+    static const char *const optStrings[] = { "-strict", NULL };
+
+    if (objc < 2 || objc > 3) {
+	Tcl_WrongNumArgs(interp, 1, objv, "?options? data");
+	return TCL_ERROR;
+    }
+    for (i = 1; i < objc - 1; ++i) {
+	if (Tcl_GetIndexFromObj(interp, objv[i], optStrings, "option",
+		TCL_EXACT, &index) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+	switch (index) {
+	case OPT_STRICT:
+	    strict = 1;
+	    break;
+	}
+    }
+
+    TclNewObj(resultObj);
+    data = Tcl_GetBytesFromObj(NULL, objv[objc - 1], &count);
+    if (data == NULL) {
+	pure = 0;
+	data = (unsigned char *) TclGetStringFromObj(objv[objc - 1], &count);
+    }
+    datastart = data;
+    dataend = data + count;
+    size = ((count + 3) & ~3) * 3 / 4;
+    begin = cursor = Tcl_SetByteArrayLength(resultObj, size);
+    lineLen = -1;
+
+    /*
+     * The decoding loop. First, we get the length of line (strictly, the
+     * number of data bytes we expect to generate from the line) we're
+     * processing this time round if it is not already known (i.e., when the
+     * lineLen variable is set to the magic value, -1).
+     */
+
+    while (data < dataend) {
+	char d[4] = {0, 0, 0, 0};
+
+	if (lineLen < 0) {
+	    c = *data++;
+	    if (c < 32 || c > 96) {
+		if (strict || !TclIsSpaceProc(c)) {
+		    goto badUu;
+		}
+		i--;
+		continue;
+	    }
+	    lineLen = (c - 32) & 0x3F;
+	}
+
+	/*
+	 * Now we read a four-character grouping.
+	 */
+
+	for (i = 0 ; i < 4 ; i++) {
+	    if (data < dataend) {
+		d[i] = c = *data++;
+		if (c < 32 || c > 96) {
+		    if (strict) {
+			if (!TclIsSpaceProc(c)) {
+			    goto badUu;
+			} else if (c == '\n') {
+			    goto shortUu;
+			}
+		    }
+		    i--;
+		    continue;
+		}
+	    }
+	}
+
+	/*
+	 * Translate that grouping into (up to) three binary bytes output.
+	 */
+
+	if (lineLen > 0) {
+	    *cursor++ = (unsigned char)(((d[0] - 0x20) & 0x3F) << 2)
+		    | (((d[1] - 0x20) & 0x3F) >> 4);
+	    if (--lineLen > 0) {
+		*cursor++ = (unsigned char)(((d[1] - 0x20) & 0x3F) << 4)
+			| (((d[2] - 0x20) & 0x3F) >> 2);
+		if (--lineLen > 0) {
+		    *cursor++ = (unsigned char)((((d[2] - 0x20) & 0x3F) << 6)
+			    | (((d[3] - 0x20) & 0x3F)));
+		    lineLen--;
+		}
+	    }
+	}
+
+	/*
+	 * If we've reached the end of the line, skip until we process a
+	 * newline.
+	 */
+
+	if (lineLen == 0 && data < dataend) {
+	    lineLen = -1;
+	    do {
+		c = *data++;
+		if (c == '\n') {
+		    break;
+		} else if (c >= 32 && c <= 96) {
+		    data--;
+		    break;
+		} else if (strict || !TclIsSpaceProc(c)) {
+		    goto badUu;
+		}
+	    } while (data < dataend);
+	}
+    }
+
+    /*
+     * Sanity check, clean up and finish.
+     */
+
+    if (lineLen > 0 && strict) {
+	goto shortUu;
+    }
+    Tcl_SetByteArrayLength(resultObj, cursor - begin);
+    Tcl_SetObjResult(interp, resultObj);
+    return TCL_OK;
+
+  shortUu:
+    Tcl_SetObjResult(interp, Tcl_ObjPrintf("short uuencode data"));
+    Tcl_SetErrorCode(interp, "TCL", "BINARY", "DECODE", "SHORT", (char *)NULL);
+    TclDecrRefCount(resultObj);
+    return TCL_ERROR;
+
+  badUu:
+    if (pure) {
+	ucs4 = c;
+    } else {
+	TclUtfToUniChar((const char *)(data - 1), &ucs4);
+    }
+    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+	    "invalid uuencode character \"%c\" (U+%06X) at position %"
+	    TCL_Z_MODIFIER "u", ucs4, ucs4, data - datastart - 1));
+    Tcl_SetErrorCode(interp, "TCL", "BINARY", "DECODE", "INVALID", (char *)NULL);
+    TclDecrRefCount(resultObj);
+    return TCL_ERROR;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * BinaryDecode64 --
+ *
+ *	Decode a base64 encoded string.
+ *
+ * Results:
+ *	Interp result set to an byte array object
+ *
+ * Side effects:
+ *	None
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+BinaryDecode64(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    Tcl_Obj *resultObj = NULL;
+    unsigned char *data, *datastart, *dataend, c = '\0';
+    unsigned char *begin = NULL;
+    unsigned char *cursor = NULL;
+    int pure = 1, strict = 0;
+    int i, index, cut = 0;
+    Tcl_Size size, count = 0;
+    int ucs4;
+    enum { OPT_STRICT };
+    static const char *const optStrings[] = { "-strict", NULL };
+
+    if (objc < 2 || objc > 3) {
+	Tcl_WrongNumArgs(interp, 1, objv, "?options? data");
+	return TCL_ERROR;
+    }
+    for (i = 1; i < objc - 1; ++i) {
+	if (Tcl_GetIndexFromObj(interp, objv[i], optStrings, "option",
+		TCL_EXACT, &index) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+	switch (index) {
+	case OPT_STRICT:
+	    strict = 1;
+	    break;
+	}
+    }
+
+    TclNewObj(resultObj);
+    data = Tcl_GetBytesFromObj(NULL, objv[objc - 1], &count);
+    if (data == NULL) {
+	pure = 0;
+	data = (unsigned char *) TclGetStringFromObj(objv[objc - 1], &count);
+    }
+    datastart = data;
+    dataend = data + count;
+    size = ((count + 3) & ~3) * 3 / 4;
+    begin = cursor = Tcl_SetByteArrayLength(resultObj, size);
+    while (data < dataend) {
+	unsigned long value = 0;
+
+	/*
+	 * Decode the current block. Each base64 block consists of four input
+	 * characters A-Z, a-z, 0-9, +, or /. Each character supplies six bits
+	 * of output data, so each block's output is 24 bits (three bytes) in
+	 * length. The final block can be shorter by one or two bytes, denoted
+	 * by the input ending with one or two ='s, respectively.
+	 */
+
+	for (i = 0; i < 4; i++) {
+	    /*
+	     * Get the next input character. At end of input, pad with at most
+	     * two ='s. If more than two ='s would be needed, instead discard
+	     * the block read thus far.
+	     */
+
+	    if (data < dataend) {
+		c = *data++;
+	    } else if (i > 1) {
+		c = '=';
+	    } else {
+		if (strict && i <= 1) {
+		    /*
+		     * Single resp. unfulfilled char (each 4th next single
+		     * char) is rather bad64 error case in strict mode.
+		     */
+
+		    goto bad64;
+		}
+		cut += 3;
+		break;
+	    }
+
+	    /*
+	     * Load the character into the block value. Handle ='s specially
+	     * because they're only valid as the last character or two of the
+	     * final block of input. Unless strict mode is enabled, skip any
+	     * input whitespace characters.
+	     */
+
+	    if (cut) {
+		if (c == '=' && i > 1) {
+		    value <<= 6;
+		    cut++;
+		} else if (!strict) {
+		    i--;
+		} else {
+		    goto bad64;
+		}
+	    } else if (c >= 'A' && c <= 'Z') {
+		value = (value << 6) | ((c - 'A') & 0x3F);
+	    } else if (c >= 'a' && c <= 'z') {
+		value = (value << 6) | ((c - 'a' + 26) & 0x3F);
+	    } else if (c >= '0' && c <= '9') {
+		value = (value << 6) | ((c - '0' + 52) & 0x3F);
+	    } else if (c == '+') {
+		value = (value << 6) | 0x3E;
+	    } else if (c == '/') {
+		value = (value << 6) | 0x3F;
+	    } else if (c == '=' && (!strict || i > 1)) {
+		/*
+		 * "=" and "a=" is rather bad64 error case in strict mode.
+		 */
+
+		value <<= 6;
+		if (i) {
+		    cut++;
+		}
+	    } else if (strict) {
+		goto bad64;
+	    } else {
+		i--;
+	    }
+	}
+	*cursor++ = UCHAR((value >> 16) & 0xFF);
+	*cursor++ = UCHAR((value >> 8) & 0xFF);
+	*cursor++ = UCHAR(value & 0xFF);
+
+	/*
+	 * Since = is only valid within the final block, if it was encountered
+	 * but there are still more input characters, confirm that strict mode
+	 * is off and all subsequent characters are whitespace.
+	 */
+
+	if (cut && data < dataend) {
+	    if (strict) {
+		goto bad64;
+	    }
+	}
+    }
+    Tcl_SetByteArrayLength(resultObj, cursor - begin - cut);
+    Tcl_SetObjResult(interp, resultObj);
+    return TCL_OK;
+
+  bad64:
+    if (pure) {
+	ucs4 = c;
+    } else {
+	/* The decoder is byte-oriented. If we saw a byte that's not a
+	 * valid member of the base64 alphabet, it could be the lead byte
+	 * of a multi-byte character. */
+
+	/* Safe because we know data is NUL-terminated */
+	TclUtfToUniChar((const char *)(data - 1), &ucs4);
+    }
+
+    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+	    "invalid base64 character \"%c\" (U+%06X) at position %"
+	    TCL_Z_MODIFIER "u", ucs4, ucs4, data - datastart - 1));
+    Tcl_SetErrorCode(interp, "TCL", "BINARY", "DECODE", "INVALID", (char *)NULL);
+    TclDecrRefCount(resultObj);
+    return TCL_ERROR;
+}
+
+/*
  * Local Variables:
  * mode: c
  * c-basic-offset: 4
diff --git a/generic/tclCkalloc.c b/generic/tclCkalloc.c
index b6616cd..497392d 100644
--- a/generic/tclCkalloc.c
+++ b/generic/tclCkalloc.c
@@ -5,9 +5,9 @@
  *    problems involving overwritten, double freeing memory and loss of
  *    memory.
  *
- * Copyright (c) 1991-1994 The Regents of the University of California.
- * Copyright (c) 1994-1997 Sun Microsystems, Inc.
- * Copyright (c) 1998-1999 by Scriptics Corporation.
+ * Copyright © 1991-1994 The Regents of the University of California.
+ * Copyright © 1994-1997 Sun Microsystems, Inc.
+ * Copyright © 1998-1999 Scriptics Corporation.
  *
  * See the file "license.terms" for information on usage and redistribution of
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
@@ -16,10 +16,17 @@
  */
 
 #include "tclInt.h"
+#include <assert.h>
 
 #define FALSE	0
 #define TRUE	1
 
+#undef Tcl_Alloc
+#undef Tcl_Free
+#undef Tcl_Realloc
+#undef Tcl_AttemptAlloc
+#undef Tcl_AttemptRealloc
+
 #ifdef TCL_MEM_DEBUG
 
 /*
@@ -27,15 +34,15 @@
  * "memory tag" command is invoked, to hold the current tag.
  */
 
-typedef struct MemTag {
-    int refCount;		/* Number of mem_headers referencing this
+typedef struct {
+    size_t refCount;		/* Number of mem_headers referencing this
 				 * tag. */
-    char string[4];		/* Actual size of string will be as large as
+    char string[TCLFLEXARRAY];	/* Actual size of string will be as large as
 				 * needed for actual tag. This must be the
 				 * last field in the structure. */
 } MemTag;
 
-#define TAG_SIZE(bytesInString) ((unsigned) sizeof(MemTag) + bytesInString - 3)
+#define TAG_SIZE(bytesInString) ((offsetof(MemTag, string) + 1U) + (bytesInString))
 
 static MemTag *curTagPtr = NULL;/* Tag to use in all future mem_headers (set
 				 * by "memory tag" command). */
@@ -46,26 +53,26 @@ static MemTag *curTagPtr = NULL;/* Tag to use in all future mem_headers (set
  * to help detect chunk under-runs.
  */
 
-#define LOW_GUARD_SIZE (8 + (32 - (sizeof(long) + sizeof(int)))%8)
+#define LOW_GUARD_SIZE (8 + (32 - (sizeof(size_t) + sizeof(int)))%8)
 struct mem_header {
     struct mem_header *flink;
     struct mem_header *blink;
     MemTag *tagPtr;		/* Tag from "memory tag" command; may be
 				 * NULL. */
-    CONST char *file;
-    long length;
+    const char *file;
+    size_t length;
     int line;
     unsigned char low_guard[LOW_GUARD_SIZE];
 				/* Aligns body on 8-byte boundary, plus
 				 * provides at least 8 additional guard bytes
 				 * to detect underruns. */
-    char body[1];		/* First byte of client's space. Actual size
+    char body[TCLFLEXARRAY];	/* First byte of client's space. Actual size
 				 * of this field will be larger than one. */
 };
 
 static struct mem_header *allocHead = NULL;  /* List of allocated structures */
 
-#define GUARD_VALUE  0141
+#define GUARD_VALUE  0x61
 
 /*
  * The following macro determines the amount of guard space *above* each chunk
@@ -83,14 +90,14 @@ static struct mem_header *allocHead = NULL;  /* List of allocated structures */
 #define BODY_OFFSET \
 	((size_t) (&((struct mem_header *) 0)->body))
 
-static int total_mallocs = 0;
-static int total_frees = 0;
+static size_t total_mallocs = 0;
+static size_t total_frees = 0;
 static size_t current_bytes_malloced = 0;
 static size_t maximum_bytes_malloced = 0;
-static int current_malloc_packets = 0;
-static int maximum_malloc_packets = 0;
-static int break_on_malloc = 0;
-static int trace_on_at_malloc = 0;
+static size_t current_malloc_packets = 0;
+static size_t  maximum_malloc_packets = 0;
+static size_t break_on_malloc = 0;
+static size_t trace_on_at_malloc = 0;
 static int alloc_tracing = FALSE;
 static int init_malloced_bodies = TRUE;
 #ifdef MEM_VALIDATE
@@ -115,31 +122,20 @@ static char dumpFile[100];	/* Records where to dump memory allocation
 /*
  * Mutex to serialize allocations. This is a low-level mutex that must be
  * explicitly initialized. This is necessary because the self initializing
- * mutexes use ckalloc...
+ * mutexes use Tcl_Alloc...
  */
 
 static Tcl_Mutex *ckallocMutexPtr;
 static int ckallocInit = 0;
 
 /*
- * Prototypes for procedures defined in this file:
- */
-
-static int		CheckmemCmd(ClientData clientData, Tcl_Interp *interp,
-			    int argc, CONST char *argv[]);
-static int		MemoryCmd(ClientData clientData, Tcl_Interp *interp,
-			    int argc, CONST char *argv[]);
-static void		ValidateMemory(struct mem_header *memHeaderP,
-			    CONST char *file, int line, int nukeGuards);
-
-/*
  *----------------------------------------------------------------------
  *
  * TclInitDbCkalloc --
  *
  *	Initialize the locks used by the allocator. This is only appropriate
  *	to call in a single threaded environment, such as during
- *	TclInitSubsystems.
+ *	Tcl_InitSubsystems.
  *
  *----------------------------------------------------------------------
  */
@@ -150,7 +146,7 @@ TclInitDbCkalloc(void)
     if (!ckallocInit) {
 	ckallocInit = 1;
 	ckallocMutexPtr = Tcl_GetAllocMutex();
-#ifndef TCL_THREADS
+#if !TCL_THREADS
 	/* Silence compiler warning */
 	(void)ckallocMutexPtr;
 #endif
@@ -168,24 +164,28 @@ TclInitDbCkalloc(void)
  */
 
 int
-TclDumpMemoryInfo(ClientData clientData, int flags)
+TclDumpMemoryInfo(
+    void *clientData,
+    int flags)
 {
     char buf[1024];
 
-    if (clientData == NULL) { return 0; }
-    sprintf(buf,
-	    "total mallocs             %10d\n"
-	    "total frees               %10d\n"
-	    "current packets allocated %10d\n"
-	    "current bytes allocated   %10lu\n"
-	    "maximum packets allocated %10d\n"
-	    "maximum bytes allocated   %10lu\n",
+    if (clientData == NULL) {
+	return 0;
+    }
+    snprintf(buf, sizeof(buf),
+	    "total mallocs             %10" TCL_Z_MODIFIER "u\n"
+	    "total frees               %10" TCL_Z_MODIFIER "u\n"
+	    "current packets allocated %10" TCL_Z_MODIFIER "u\n"
+	    "current bytes allocated   %10" TCL_Z_MODIFIER "u\n"
+	    "maximum packets allocated %10" TCL_Z_MODIFIER "u\n"
+	    "maximum bytes allocated   %10" TCL_Z_MODIFIER "u\n",
 	    total_mallocs,
 	    total_frees,
 	    current_malloc_packets,
-	    (unsigned long)current_bytes_malloced,
+	    current_bytes_malloced,
 	    maximum_malloc_packets,
-	    (unsigned long)maximum_bytes_malloced);
+	    maximum_bytes_malloced);
     if (flags == 0) {
 	fprintf((FILE *)clientData, "%s", buf);
     } else {
@@ -216,7 +216,7 @@ static void
 ValidateMemory(
     struct mem_header *memHeaderP,
 				/* Memory chunk to validate */
-    CONST char *file,		/* File containing the call to
+    const char *file,		/* File containing the call to
 				 * Tcl_ValidateAllMemory */
     int line,			/* Line number of call to
 				 * Tcl_ValidateAllMemory */
@@ -234,39 +234,39 @@ ValidateMemory(
 	if (byte != GUARD_VALUE) {
 	    guard_failed = TRUE;
 	    fflush(stdout);
-	    byte &= 0xff;
-	    fprintf(stderr, "low guard byte %d is 0x%x  \t%c\n", (int)idx, byte,
+	    byte &= 0xFF;
+	    fprintf(stderr, "low guard byte %" TCL_Z_MODIFIER "u is 0x%x  \t%c\n", idx, byte,
 		    (isprint(UCHAR(byte)) ? byte : ' ')); /* INTL: bytes */
 	}
     }
     if (guard_failed) {
-	TclDumpMemoryInfo((ClientData) stderr, 0);
-	fprintf(stderr, "low guard failed at %lx, %s %d\n",
-		(long unsigned int) memHeaderP->body, file, line);
+	TclDumpMemoryInfo(stderr, 0);
+	fprintf(stderr, "low guard failed at %p, %s %d\n",
+		memHeaderP->body, file, line);
 	fflush(stderr);			/* In case name pointer is bad. */
-	fprintf(stderr, "%ld bytes allocated at (%s %d)\n", memHeaderP->length,
+	fprintf(stderr, "%" TCL_Z_MODIFIER "u bytes allocated at (%s %d)\n", memHeaderP->length,
 		memHeaderP->file, memHeaderP->line);
 	Tcl_Panic("Memory validation failure");
     }
 
     hiPtr = (unsigned char *)memHeaderP->body + memHeaderP->length;
     for (idx = 0; idx < HIGH_GUARD_SIZE; idx++) {
-	byte = *(hiPtr + idx);
+	byte = hiPtr[idx];
 	if (byte != GUARD_VALUE) {
 	    guard_failed = TRUE;
 	    fflush(stdout);
-	    byte &= 0xff;
-	    fprintf(stderr, "hi guard byte %d is 0x%x  \t%c\n", (int)idx, byte,
+	    byte &= 0xFF;
+	    fprintf(stderr, "hi guard byte %" TCL_Z_MODIFIER "u is 0x%x  \t%c\n", idx, byte,
 		    (isprint(UCHAR(byte)) ? byte : ' ')); /* INTL: bytes */
 	}
     }
 
     if (guard_failed) {
-	TclDumpMemoryInfo((ClientData) stderr, 0);
-	fprintf(stderr, "high guard failed at %lx, %s %d\n",
-		(long unsigned int) memHeaderP->body, file, line);
+	TclDumpMemoryInfo(stderr, 0);
+	fprintf(stderr, "high guard failed at %p, %s %d\n",
+		memHeaderP->body, file, line);
 	fflush(stderr);			/* In case name pointer is bad. */
-	fprintf(stderr, "%ld bytes allocated at (%s %d)\n",
+	fprintf(stderr, "%" TCL_Z_MODIFIER "u bytes allocated at (%s %d)\n",
 		memHeaderP->length, memHeaderP->file,
 		memHeaderP->line);
 	Tcl_Panic("Memory validation failure");
@@ -276,7 +276,6 @@ ValidateMemory(
 	memset(memHeaderP->low_guard, 0, LOW_GUARD_SIZE);
 	memset(hiPtr, 0, HIGH_GUARD_SIZE);
     }
-
 }
 
 /*
@@ -297,7 +296,7 @@ ValidateMemory(
 
 void
 Tcl_ValidateAllMemory(
-    CONST char *file,		/* File from which Tcl_ValidateAllMemory was
+    const char *file,		/* File from which Tcl_ValidateAllMemory was
 				 * called. */
     int line)			/* Line number of call to
 				 * Tcl_ValidateAllMemory */
@@ -331,7 +330,7 @@ Tcl_ValidateAllMemory(
 
 int
 Tcl_DumpActiveMemory(
-    CONST char *fileName)	/* Name of the file to write info to */
+    const char *fileName)	/* Name of the file to write info to */
 {
     FILE *fileP;
     struct mem_header *memScanP;
@@ -348,10 +347,9 @@ Tcl_DumpActiveMemory(
 
     Tcl_MutexLock(ckallocMutexPtr);
     for (memScanP = allocHead; memScanP != NULL; memScanP = memScanP->flink) {
-	address = &memScanP->body [0];
-	fprintf(fileP, "%8lx - %8lx  %7ld @ %s %d %s",
-		(long unsigned int) address,
-		(long unsigned int) address + memScanP->length - 1,
+	address = &memScanP->body[0];
+	fprintf(fileP, "%p - %p  %" TCL_Z_MODIFIER "u @ %s %d %s",
+		address, address + memScanP->length - 1,
 		memScanP->length, memScanP->file, memScanP->line,
 		(memScanP->tagPtr == NULL) ? "" : memScanP->tagPtr->string);
 	(void) fputc('\n', fileP);
@@ -367,25 +365,25 @@ Tcl_DumpActiveMemory(
 /*
  *----------------------------------------------------------------------
  *
- * Tcl_DbCkalloc - debugging ckalloc
+ * Tcl_DbCkalloc - debugging Tcl_Alloc
  *
  *	Allocate the requested amount of space plus some extra for guard bands
- *	at both ends of the request, plus a size, panicing if there isn't
+ *	at both ends of the request, plus a size, panicking if there isn't
  *	enough space, then write in the guard bands and return the address of
  *	the space in the middle that the user asked for.
  *
  *	The second and third arguments are file and line, these contain the
  *	filename and line number corresponding to the caller. These are sent
- *	by the ckalloc macro; it uses the preprocessor autodefines __FILE__
+ *	by the Tcl_Alloc macro; it uses the preprocessor autodefines __FILE__
  *	and __LINE__.
  *
  *----------------------------------------------------------------------
  */
 
-char *
+void *
 Tcl_DbCkalloc(
-    unsigned int size,
-    CONST char *file,
+    size_t size,
+    const char *file,
     int line)
 {
     struct mem_header *result = NULL;
@@ -395,14 +393,14 @@ Tcl_DbCkalloc(
     }
 
     /* Don't let size argument to TclpAlloc overflow */
-    if (size <= UINT_MAX - HIGH_GUARD_SIZE -sizeof(struct mem_header)) {
-	result = (struct mem_header *) TclpAlloc((unsigned)size +
-		sizeof(struct mem_header) + HIGH_GUARD_SIZE);
+    if (size <= (size_t)-2 - offsetof(struct mem_header, body) - HIGH_GUARD_SIZE) {
+	result = (struct mem_header *) TclpAlloc(size +
+		offsetof(struct mem_header, body) + 1U + HIGH_GUARD_SIZE);
     }
     if (result == NULL) {
 	fflush(stdout);
-	TclDumpMemoryInfo((ClientData) stderr, 0);
-	Tcl_Panic("unable to alloc %u bytes, %s line %d", size, file, line);
+	TclDumpMemoryInfo(stderr, 0);
+	Tcl_Panic("unable to alloc %" TCL_Z_MODIFIER "u bytes, %s line %d", size, file, line);
     }
 
     /*
@@ -413,7 +411,7 @@ Tcl_DbCkalloc(
 
     if (init_malloced_bodies) {
 	memset(result, GUARD_VALUE,
-		size + sizeof(struct mem_header) + HIGH_GUARD_SIZE);
+		offsetof(struct mem_header, body) + 1U + HIGH_GUARD_SIZE + size);
     } else {
 	memset(result->low_guard, GUARD_VALUE, LOW_GUARD_SIZE);
 	memset(result->body + size, GUARD_VALUE, HIGH_GUARD_SIZE);
@@ -440,7 +438,7 @@ Tcl_DbCkalloc(
     total_mallocs++;
     if (trace_on_at_malloc && (total_mallocs >= trace_on_at_malloc)) {
 	(void) fflush(stdout);
-	fprintf(stderr, "reached malloc trace enable point (%d)\n",
+	fprintf(stderr, "reached malloc trace enable point (%" TCL_Z_MODIFIER "u)\n",
 		total_mallocs);
 	fflush(stderr);
 	alloc_tracing = TRUE;
@@ -448,18 +446,14 @@ Tcl_DbCkalloc(
     }
 
     if (alloc_tracing) {
-	fprintf(stderr,"ckalloc %lx %u %s %d\n",
-		(long unsigned int) result->body, size, file, line);
+	fprintf(stderr,"Tcl_Alloc %p %" TCL_Z_MODIFIER "u %s %d\n",
+		result->body, size, file, line);
     }
 
     if (break_on_malloc && (total_mallocs >= break_on_malloc)) {
 	break_on_malloc = 0;
 	(void) fflush(stdout);
-	fprintf(stderr,"reached malloc break limit (%d)\n",
-		total_mallocs);
-	fprintf(stderr, "program will now enter C debugger\n");
-	(void) fflush(stderr);
-	abort();
+	Tcl_Panic("reached malloc break limit (%" TCL_Z_MODIFIER "u)", total_mallocs);
     }
 
     current_malloc_packets++;
@@ -476,10 +470,10 @@ Tcl_DbCkalloc(
     return result->body;
 }
 
-char *
+void *
 Tcl_AttemptDbCkalloc(
-    unsigned int size,
-    CONST char *file,
+    size_t size,
+    const char *file,
     int line)
 {
     struct mem_header *result = NULL;
@@ -489,13 +483,13 @@ Tcl_AttemptDbCkalloc(
     }
 
     /* Don't let size argument to TclpAlloc overflow */
-    if (size <= UINT_MAX - HIGH_GUARD_SIZE - sizeof(struct mem_header)) {
-	result = (struct mem_header *) TclpAlloc((unsigned)size +
-		sizeof(struct mem_header) + HIGH_GUARD_SIZE);
+    if (size <= (size_t)-2 - offsetof(struct mem_header, body) - HIGH_GUARD_SIZE) {
+	result = (struct mem_header *) TclpAlloc(size +
+		offsetof(struct mem_header, body) + 1U + HIGH_GUARD_SIZE);
     }
     if (result == NULL) {
 	fflush(stdout);
-	TclDumpMemoryInfo((ClientData) stderr, 0);
+	TclDumpMemoryInfo(stderr, 0);
 	return NULL;
     }
 
@@ -506,7 +500,7 @@ Tcl_AttemptDbCkalloc(
      */
     if (init_malloced_bodies) {
 	memset(result, GUARD_VALUE,
-		size + sizeof(struct mem_header) + HIGH_GUARD_SIZE);
+		offsetof(struct mem_header, body) + 1U + HIGH_GUARD_SIZE + size);
     } else {
 	memset(result->low_guard, GUARD_VALUE, LOW_GUARD_SIZE);
 	memset(result->body + size, GUARD_VALUE, HIGH_GUARD_SIZE);
@@ -533,7 +527,7 @@ Tcl_AttemptDbCkalloc(
     total_mallocs++;
     if (trace_on_at_malloc && (total_mallocs >= trace_on_at_malloc)) {
 	(void) fflush(stdout);
-	fprintf(stderr, "reached malloc trace enable point (%d)\n",
+	fprintf(stderr, "reached malloc trace enable point (%" TCL_Z_MODIFIER "u)\n",
 		total_mallocs);
 	fflush(stderr);
 	alloc_tracing = TRUE;
@@ -541,18 +535,14 @@ Tcl_AttemptDbCkalloc(
     }
 
     if (alloc_tracing) {
-	fprintf(stderr,"ckalloc %lx %u %s %d\n",
-		(long unsigned int) result->body, size, file, line);
+	fprintf(stderr,"Tcl_Alloc %p %" TCL_Z_MODIFIER "u %s %d\n",
+		result->body, size, file, line);
     }
 
     if (break_on_malloc && (total_mallocs >= break_on_malloc)) {
 	break_on_malloc = 0;
 	(void) fflush(stdout);
-	fprintf(stderr,"reached malloc break limit (%d)\n",
-		total_mallocs);
-	fprintf(stderr, "program will now enter C debugger\n");
-	(void) fflush(stderr);
-	abort();
+	Tcl_Panic("reached malloc break limit (%" TCL_Z_MODIFIER "u)", total_mallocs);
     }
 
     current_malloc_packets++;
@@ -572,7 +562,7 @@ Tcl_AttemptDbCkalloc(
 /*
  *----------------------------------------------------------------------
  *
- * Tcl_DbCkfree - debugging ckfree
+ * Tcl_DbCkfree - debugging Tcl_Free
  *
  *	Verify that the low and high guards are intact, and if so then free
  *	the buffer else Tcl_Panic.
@@ -581,7 +571,7 @@ Tcl_AttemptDbCkalloc(
  *
  *	The second and third arguments are file and line, these contain the
  *	filename and line number corresponding to the caller. These are sent
- *	by the ckfree macro; it uses the preprocessor autodefines __FILE__ and
+ *	by the Tcl_Free macro; it uses the preprocessor autodefines __FILE__ and
  *	__LINE__.
  *
  *----------------------------------------------------------------------
@@ -589,8 +579,8 @@ Tcl_AttemptDbCkalloc(
 
 void
 Tcl_DbCkfree(
-    char *ptr,
-    CONST char *file,
+    void *ptr,
+    const char *file,
     int line)
 {
     struct mem_header *memp;
@@ -610,8 +600,8 @@ Tcl_DbCkfree(
     memp = (struct mem_header *) (((size_t) ptr) - BODY_OFFSET);
 
     if (alloc_tracing) {
-	fprintf(stderr, "ckfree %lx %ld %s %d\n",
-		(long unsigned int) memp->body, memp->length, file, line);
+	fprintf(stderr, "Tcl_Free %p %" TCL_Z_MODIFIER "u %s %d\n",
+		memp->body, memp->length, file, line);
     }
 
     if (validate_memory) {
@@ -621,7 +611,7 @@ Tcl_DbCkfree(
     Tcl_MutexLock(ckallocMutexPtr);
     ValidateMemory(memp, file, line, TRUE);
     if (init_malloced_bodies) {
-	memset(ptr, GUARD_VALUE, (size_t) memp->length);
+	memset(ptr, GUARD_VALUE, memp->length);
     }
 
     total_frees++;
@@ -629,9 +619,8 @@ Tcl_DbCkfree(
     current_bytes_malloced -= memp->length;
 
     if (memp->tagPtr != NULL) {
-	memp->tagPtr->refCount--;
-	if ((memp->tagPtr->refCount == 0) && (curTagPtr != memp->tagPtr)) {
-	    TclpFree((char *) memp->tagPtr);
+	if ((memp->tagPtr->refCount-- <= 1) && (curTagPtr != memp->tagPtr)) {
+	    TclpFree(memp->tagPtr);
 	}
     }
 
@@ -648,14 +637,14 @@ Tcl_DbCkfree(
     if (allocHead == memp) {
 	allocHead = memp->flink;
     }
-    TclpFree((char *) memp);
+    TclpFree(memp);
     Tcl_MutexUnlock(ckallocMutexPtr);
 }
 
 /*
  *--------------------------------------------------------------------
  *
- * Tcl_DbCkrealloc - debugging ckrealloc
+ * Tcl_DbCkrealloc - debugging Tcl_Realloc
  *
  *	Reallocate a chunk of memory by allocating a new one of the right
  *	size, copying the old data to the new location, and then freeing the
@@ -665,15 +654,15 @@ Tcl_DbCkfree(
  *--------------------------------------------------------------------
  */
 
-char *
+void *
 Tcl_DbCkrealloc(
-    char *ptr,
-    unsigned int size,
-    CONST char *file,
+    void *ptr,
+    size_t size,
+    const char *file,
     int line)
 {
     char *newPtr;
-    unsigned int copySize;
+    size_t copySize;
     struct mem_header *memp;
 
     if (ptr == NULL) {
@@ -687,24 +676,24 @@ Tcl_DbCkrealloc(
     memp = (struct mem_header *) (((size_t) ptr) - BODY_OFFSET);
 
     copySize = size;
-    if (copySize > (unsigned int) memp->length) {
+    if (copySize > memp->length) {
 	copySize = memp->length;
     }
-    newPtr = Tcl_DbCkalloc(size, file, line);
-    memcpy(newPtr, ptr, (size_t) copySize);
+    newPtr = (char *)Tcl_DbCkalloc(size, file, line);
+    memcpy(newPtr, ptr, copySize);
     Tcl_DbCkfree(ptr, file, line);
     return newPtr;
 }
 
-char *
+void *
 Tcl_AttemptDbCkrealloc(
-    char *ptr,
-    unsigned int size,
-    CONST char *file,
+    void *ptr,
+    size_t size,
+    const char *file,
     int line)
 {
     char *newPtr;
-    unsigned int copySize;
+    size_t copySize;
     struct mem_header *memp;
 
     if (ptr == NULL) {
@@ -718,18 +707,17 @@ Tcl_AttemptDbCkrealloc(
     memp = (struct mem_header *) (((size_t) ptr) - BODY_OFFSET);
 
     copySize = size;
-    if (copySize > (unsigned int) memp->length) {
+    if (copySize > memp->length) {
 	copySize = memp->length;
     }
-    newPtr = Tcl_AttemptDbCkalloc(size, file, line);
+    newPtr = (char *)Tcl_AttemptDbCkalloc(size, file, line);
     if (newPtr == NULL) {
 	return NULL;
     }
-    memcpy(newPtr, ptr, (size_t) copySize);
+    memcpy(newPtr, ptr, copySize);
     Tcl_DbCkfree(ptr, file, line);
     return newPtr;
 }
-
 
 /*
  *----------------------------------------------------------------------
@@ -748,44 +736,38 @@ Tcl_AttemptDbCkrealloc(
  *----------------------------------------------------------------------
  */
 
-#undef Tcl_Alloc
-#undef Tcl_Free
-#undef Tcl_Realloc
-#undef Tcl_AttemptAlloc
-#undef Tcl_AttemptRealloc
-
-char *
+void *
 Tcl_Alloc(
-    unsigned int size)
+    size_t size)
 {
     return Tcl_DbCkalloc(size, "unknown", 0);
 }
 
-char *
+void *
 Tcl_AttemptAlloc(
-    unsigned int size)
+    size_t size)
 {
     return Tcl_AttemptDbCkalloc(size, "unknown", 0);
 }
 
 void
 Tcl_Free(
-    char *ptr)
+    void *ptr)
 {
     Tcl_DbCkfree(ptr, "unknown", 0);
 }
 
-char *
+void *
 Tcl_Realloc(
-    char *ptr,
-    unsigned int size)
+    void *ptr,
+    size_t size)
 {
     return Tcl_DbCkrealloc(ptr, size, "unknown", 0);
 }
-char *
+void *
 Tcl_AttemptRealloc(
-    char *ptr,
-    unsigned int size)
+    void *ptr,
+    size_t size)
 {
     return Tcl_AttemptDbCkrealloc(ptr, size, "unknown", 0);
 }
@@ -812,56 +794,56 @@ Tcl_AttemptRealloc(
  *
  *----------------------------------------------------------------------
  */
-	/* ARGSUSED */
 static int
 MemoryCmd(
-    ClientData clientData,
+    TCL_UNUSED(void *),
     Tcl_Interp *interp,
-    int argc,
-    CONST char *argv[])
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Obj values of arguments. */
 {
-    CONST char *fileName;
+    const char *fileName;
     FILE *fileP;
     Tcl_DString buffer;
     int result;
     size_t len;
 
-    if (argc < 2) {
-	Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
-		" option [args..]\"", NULL);
+    if (objc < 2) {
+	Tcl_WrongNumArgs(interp, 1, objv, "option [args..]");
 	return TCL_ERROR;
     }
 
-    if ((strcmp(argv[1],"active") == 0) || (strcmp(argv[1],"display") == 0)) {
-	if (argc != 3) {
-	    Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
-		    " ", argv[1], " file\"", NULL);
+    if (strcmp(TclGetString(objv[1]), "active") == 0 || strcmp(TclGetString(objv[1]), "display") == 0) {
+	if (objc != 3) {
+	    Tcl_WrongNumArgs(interp, 2, objv, "file");
 	    return TCL_ERROR;
 	}
-	fileName = Tcl_TranslateFileName(interp, argv[2], &buffer);
+	fileName = Tcl_TranslateFileName(interp, TclGetString(objv[2]), &buffer);
 	if (fileName == NULL) {
 	    return TCL_ERROR;
 	}
-	result = Tcl_DumpActiveMemory (fileName);
+	result = Tcl_DumpActiveMemory(fileName);
 	Tcl_DStringFree(&buffer);
 	if (result != TCL_OK) {
-	    Tcl_AppendResult(interp, "error accessing ", argv[2], NULL);
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf("error accessing %s: %s",
+		    TclGetString(objv[2]), Tcl_PosixError(interp)));
 	    return TCL_ERROR;
 	}
 	return TCL_OK;
     }
-    if (strcmp(argv[1],"break_on_malloc") == 0) {
-	if (argc != 3) {
+    if (strcmp(TclGetString(objv[1]),"break_on_malloc") == 0) {
+	Tcl_WideInt value;
+	if (objc != 3) {
 	    goto argError;
 	}
-	if (Tcl_GetInt(interp, argv[2], &break_on_malloc) != TCL_OK) {
+	if (TclGetWideIntFromObj(interp, objv[2], &value) != TCL_OK) {
 	    return TCL_ERROR;
 	}
+	break_on_malloc = value;
 	return TCL_OK;
     }
-    if (strcmp(argv[1],"info") == 0) {
+    if (strcmp(TclGetString(objv[1]),"info") == 0) {
 	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-		"%-25s %10d\n%-25s %10d\n%-25s %10d\n%-25s %10lu\n%-25s %10d\n%-25s %10lu\n",
+		"%-25s %10" TCL_Z_MODIFIER "u\n%-25s %10" TCL_Z_MODIFIER "u\n%-25s %10" TCL_Z_MODIFIER "u\n%-25s %10" TCL_Z_MODIFIER "u\n%-25s %10" TCL_Z_MODIFIER "u\n%-25s %10" TCL_Z_MODIFIER "u\n",
 		"total mallocs", total_mallocs, "total frees", total_frees,
 		"current packets allocated", current_malloc_packets,
 		"current bytes allocated", current_bytes_malloced,
@@ -869,26 +851,27 @@ MemoryCmd(
 		"maximum bytes allocated", maximum_bytes_malloced));
 	return TCL_OK;
     }
-    if (strcmp(argv[1],"init") == 0) {
-	if (argc != 3) {
+    if (strcmp(TclGetString(objv[1]), "init") == 0) {
+	if (objc != 3) {
 	    goto bad_suboption;
 	}
-	init_malloced_bodies = (strcmp(argv[2],"on") == 0);
+	init_malloced_bodies = (strcmp(TclGetString(objv[2]),"on") == 0);
 	return TCL_OK;
     }
-    if (strcmp(argv[1],"objs") == 0) {
-	if (argc != 3) {
-	    Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
-		    " objs file\"", NULL);
+    if (strcmp(TclGetString(objv[1]), "objs") == 0) {
+	if (objc != 3) {
+	    Tcl_WrongNumArgs(interp, 2, objv, "file");
 	    return TCL_ERROR;
 	}
-	fileName = Tcl_TranslateFileName(interp, argv[2], &buffer);
+	fileName = Tcl_TranslateFileName(interp, TclGetString(objv[2]), &buffer);
 	if (fileName == NULL) {
 	    return TCL_ERROR;
 	}
 	fileP = fopen(fileName, "w");
 	if (fileP == NULL) {
-	    Tcl_AppendResult(interp, "cannot open output file", NULL);
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "cannot open output file: %s",
+		    Tcl_PosixError(interp)));
 	    return TCL_ERROR;
 	}
 	TclDbDumpActiveObjects(fileP);
@@ -896,13 +879,12 @@ MemoryCmd(
 	Tcl_DStringFree(&buffer);
 	return TCL_OK;
     }
-    if (strcmp(argv[1],"onexit") == 0) {
-	if (argc != 3) {
-	    Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
-		    " onexit file\"", NULL);
+    if (strcmp(TclGetString(objv[1]),"onexit") == 0) {
+	if (objc != 3) {
+	    Tcl_WrongNumArgs(interp, 2, objv, "file");
 	    return TCL_ERROR;
 	}
-	fileName = Tcl_TranslateFileName(interp, argv[2], &buffer);
+	fileName = Tcl_TranslateFileName(interp, TclGetString(objv[2]), &buffer);
 	if (fileName == NULL) {
 	    return TCL_ERROR;
 	}
@@ -911,59 +893,59 @@ MemoryCmd(
 	Tcl_DStringFree(&buffer);
 	return TCL_OK;
     }
-    if (strcmp(argv[1],"tag") == 0) {
-	if (argc != 3) {
-	    Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
-		    " tag string\"", NULL);
+    if (strcmp(TclGetString(objv[1]),"tag") == 0) {
+	if (objc != 3) {
+	    Tcl_WrongNumArgs(interp, 2, objv, "file");
 	    return TCL_ERROR;
 	}
 	if ((curTagPtr != NULL) && (curTagPtr->refCount == 0)) {
-	    TclpFree((char *) curTagPtr);
+	    TclpFree(curTagPtr);
 	}
-	len = strlen(argv[2]);
+	len = strlen(TclGetString(objv[2]));
 	curTagPtr = (MemTag *) TclpAlloc(TAG_SIZE(len));
 	curTagPtr->refCount = 0;
-	memcpy(curTagPtr->string, argv[2], len + 1);
+	memcpy(curTagPtr->string, TclGetString(objv[2]), len + 1);
 	return TCL_OK;
     }
-    if (strcmp(argv[1],"trace") == 0) {
-	if (argc != 3) {
+    if (strcmp(TclGetString(objv[1]),"trace") == 0) {
+	if (objc != 3) {
 	    goto bad_suboption;
 	}
-	alloc_tracing = (strcmp(argv[2],"on") == 0);
+	alloc_tracing = (strcmp(TclGetString(objv[2]),"on") == 0);
 	return TCL_OK;
     }
 
-    if (strcmp(argv[1],"trace_on_at_malloc") == 0) {
-	if (argc != 3) {
+    if (strcmp(TclGetString(objv[1]),"trace_on_at_malloc") == 0) {
+	Tcl_WideInt value;
+	if (objc != 3) {
 	    goto argError;
 	}
-	if (Tcl_GetInt(interp, argv[2], &trace_on_at_malloc) != TCL_OK) {
+	if (TclGetWideIntFromObj(interp, objv[2], &value) != TCL_OK) {
 	    return TCL_ERROR;
 	}
+	trace_on_at_malloc = value;
 	return TCL_OK;
     }
-    if (strcmp(argv[1],"validate") == 0) {
-	if (argc != 3) {
+    if (strcmp(TclGetString(objv[1]),"validate") == 0) {
+	if (objc != 3) {
 	    goto bad_suboption;
 	}
-	validate_memory = (strcmp(argv[2],"on") == 0);
+	validate_memory = (strcmp(TclGetString(objv[2]),"on") == 0);
 	return TCL_OK;
     }
 
-    Tcl_AppendResult(interp, "bad option \"", argv[1],
-	    "\": should be active, break_on_malloc, info, init, onexit, "
-	    "tag, trace, trace_on_at_malloc, or validate", NULL);
+    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+	    "bad option \"%s\": should be active, break_on_malloc, info, "
+	    "init, objs, onexit, tag, trace, trace_on_at_malloc, or validate",
+	    TclGetString(objv[1])));
     return TCL_ERROR;
 
   argError:
-    Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
-	    " ", argv[1], " count\"", NULL);
+    Tcl_WrongNumArgs(interp, 2, objv, "count");
     return TCL_ERROR;
 
   bad_suboption:
-    Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
-	    " ", argv[1], " on|off\"", NULL);
+    Tcl_WrongNumArgs(interp, 2, objv, "on|off");
     return TCL_ERROR;
 }
 
@@ -984,21 +966,19 @@ MemoryCmd(
  *
  *----------------------------------------------------------------------
  */
-
 static int
 CheckmemCmd(
-    ClientData clientData,	/* Not used. */
+    TCL_UNUSED(void *),
     Tcl_Interp *interp,		/* Interpreter for evaluation. */
-    int argc,			/* Number of arguments. */
-    CONST char *argv[])		/* String values of arguments. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Obj values of arguments. */
 {
-    if (argc != 2) {
-	Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
-		" fileName\"", NULL);
+    if (objc != 2) {
+	Tcl_WrongNumArgs(interp, 1, objv, "fileName");
 	return TCL_ERROR;
     }
     tclMemDumpFileName = dumpFile;
-    strcpy(tclMemDumpFileName, argv[1]);
+    strcpy(tclMemDumpFileName, TclGetString(objv[1]));
     return TCL_OK;
 }
 
@@ -1024,11 +1004,10 @@ Tcl_InitMemory(
 				 * added */
 {
     TclInitDbCkalloc();
-    Tcl_CreateCommand(interp, "memory", MemoryCmd, (ClientData) NULL, NULL);
-    Tcl_CreateCommand(interp, "checkmem", CheckmemCmd, (ClientData) 0, NULL);
+    Tcl_CreateObjCommand(interp, "memory", MemoryCmd, NULL, NULL);
+    Tcl_CreateObjCommand(interp, "checkmem", CheckmemCmd, NULL, NULL);
 }
 
-
 #else	/* TCL_MEM_DEBUG */
 
 /* This is the !TCL_MEM_DEBUG case */
@@ -1036,7 +1015,6 @@ Tcl_InitMemory(
 #undef Tcl_InitMemory
 #undef Tcl_DumpActiveMemory
 #undef Tcl_ValidateAllMemory
-
 
 /*
  *----------------------------------------------------------------------
@@ -1049,13 +1027,11 @@ Tcl_InitMemory(
  *----------------------------------------------------------------------
  */
 
-char *
+void *
 Tcl_Alloc(
-    unsigned int size)
+    size_t size)
 {
-    char *result;
-
-    result = TclpAlloc(size);
+    void *result = TclpAlloc(size);
 
     /*
      * Most systems will not alloc(0), instead bumping it to one so that NULL
@@ -1068,24 +1044,23 @@ Tcl_Alloc(
      */
 
     if ((result == NULL) && size) {
-	Tcl_Panic("unable to alloc %u bytes", size);
+	Tcl_Panic("unable to alloc %" TCL_Z_MODIFIER "u bytes", size);
     }
     return result;
 }
 
-char *
+void *
 Tcl_DbCkalloc(
-    unsigned int size,
-    CONST char *file,
+    size_t size,
+    const char *file,
     int line)
 {
-    char *result;
-
-    result = (char *) TclpAlloc(size);
+    void *result = TclpAlloc(size);
 
     if ((result == NULL) && size) {
 	fflush(stdout);
-	Tcl_Panic("unable to alloc %u bytes, %s line %d", size, file, line);
+	Tcl_Panic("unable to alloc %" TCL_Z_MODIFIER "u bytes, %s line %d",
+		size, file, line);
     }
     return result;
 }
@@ -1101,26 +1076,20 @@ Tcl_DbCkalloc(
  *----------------------------------------------------------------------
  */
 
-char *
+void *
 Tcl_AttemptAlloc(
-    unsigned int size)
+    size_t size)
 {
-    char *result;
-
-    result = TclpAlloc(size);
-    return result;
+    return (char *)TclpAlloc(size);
 }
 
-char *
+void *
 Tcl_AttemptDbCkalloc(
-    unsigned int size,
-    CONST char *file,
-    int line)
+    size_t size,
+    TCL_UNUSED(const char *) /*file*/,
+    TCL_UNUSED(int) /*line*/)
 {
-    char *result;
-
-    result = (char *) TclpAlloc(size);
-    return result;
+    return (char *)TclpAlloc(size);
 }
 
 /*
@@ -1134,35 +1103,32 @@ Tcl_AttemptDbCkalloc(
  *----------------------------------------------------------------------
  */
 
-char *
+void *
 Tcl_Realloc(
-    char *ptr,
-    unsigned int size)
+    void *ptr,
+    size_t size)
 {
-    char *result;
-
-    result = TclpRealloc(ptr, size);
+    void *result = TclpRealloc(ptr, size);
 
     if ((result == NULL) && size) {
-	Tcl_Panic("unable to realloc %u bytes", size);
+	Tcl_Panic("unable to realloc %" TCL_Z_MODIFIER "u bytes", size);
     }
     return result;
 }
 
-char *
+void *
 Tcl_DbCkrealloc(
-    char *ptr,
-    unsigned int size,
-    CONST char *file,
+    void *ptr,
+    size_t size,
+    const char *file,
     int line)
 {
-    char *result;
-
-    result = (char *) TclpRealloc(ptr, size);
+    void *result = TclpRealloc(ptr, size);
 
     if ((result == NULL) && size) {
 	fflush(stdout);
-	Tcl_Panic("unable to realloc %u bytes, %s line %d", size, file, line);
+	Tcl_Panic("unable to realloc %" TCL_Z_MODIFIER "u bytes, %s line %d",
+		size, file, line);
     }
     return result;
 }
@@ -1178,28 +1144,22 @@ Tcl_DbCkrealloc(
  *----------------------------------------------------------------------
  */
 
-char *
+void *
 Tcl_AttemptRealloc(
-    char *ptr,
-    unsigned int size)
+    void *ptr,
+    size_t size)
 {
-    char *result;
-
-    result = TclpRealloc(ptr, size);
-    return result;
+    return (char *)TclpRealloc(ptr, size);
 }
 
-char *
+void *
 Tcl_AttemptDbCkrealloc(
-    char *ptr,
-    unsigned int size,
-    CONST char *file,
-    int line)
+    void *ptr,
+    size_t size,
+    TCL_UNUSED(const char *) /*file*/,
+    TCL_UNUSED(int) /*line*/)
 {
-    char *result;
-
-    result = (char *) TclpRealloc(ptr, size);
-    return result;
+    return (char *)TclpRealloc(ptr, size);
 }
 
 /*
@@ -1216,16 +1176,16 @@ Tcl_AttemptDbCkrealloc(
 
 void
 Tcl_Free(
-    char *ptr)
+    void *ptr)
 {
     TclpFree(ptr);
 }
 
 void
 Tcl_DbCkfree(
-    char *ptr,
-    CONST char *file,
-    int line)
+    void *ptr,
+    TCL_UNUSED(const char *) /*file*/,
+    TCL_UNUSED(int) /*line*/)
 {
     TclpFree(ptr);
 }
@@ -1240,29 +1200,30 @@ Tcl_DbCkfree(
  *
  *----------------------------------------------------------------------
  */
-	/* ARGSUSED */
 void
 Tcl_InitMemory(
-    Tcl_Interp *interp)
+    TCL_UNUSED(Tcl_Interp *) /*interp*/)
 {
 }
 
 int
 Tcl_DumpActiveMemory(
-    CONST char *fileName)
+    TCL_UNUSED(const char *) /*fileName*/)
 {
     return TCL_OK;
 }
 
 void
 Tcl_ValidateAllMemory(
-    CONST char *file,
-    int line)
+    TCL_UNUSED(const char *) /*file*/,
+    TCL_UNUSED(int) /*line*/)
 {
 }
 
 int
-TclDumpMemoryInfo(ClientData clientData, int flags)
+TclDumpMemoryInfo(
+    TCL_UNUSED(void *),
+    TCL_UNUSED(int) /*flags*/)
 {
     return 1;
 }
@@ -1270,6 +1231,148 @@ TclDumpMemoryInfo(ClientData clientData, int flags)
 #endif	/* TCL_MEM_DEBUG */
 
 /*
+ *------------------------------------------------------------------------
+ *
+ * TclAllocElemsEx --
+ *
+ *    See TclAttemptAllocElemsEx. This function differs in that it panics
+ *    on failure.
+ *
+ * Results:
+ *    Non-NULL pointer to allocated memory block.
+ *
+ * Side effects:
+ *    Panics if memory of at least the requested size could not be
+ *    allocated.
+ *
+ *------------------------------------------------------------------------
+ */
+void *
+TclAllocElemsEx(
+    Tcl_Size elemCount,		/* Allocation will store at least these many... */
+    Tcl_Size elemSize,		/* ...elements of this size */
+    Tcl_Size leadSize,		/* Additional leading space in bytes */
+    Tcl_Size *capacityPtr)	/* OUTPUT: Actual capacity is stored here if
+				 * non-NULL. Only modified on success */
+{
+    void *ptr = TclAttemptReallocElemsEx(
+	NULL, elemCount, elemSize, leadSize, capacityPtr);
+    if (ptr == NULL) {
+	Tcl_Panic("Failed to allocate %" TCL_SIZE_MODIFIER
+		  "d elements of size %" TCL_SIZE_MODIFIER "d bytes.",
+		  elemCount,
+		  elemSize);
+    }
+    return ptr;
+}
+
+/*
+ *------------------------------------------------------------------------
+ *
+ * TclAttemptReallocElemsEx --
+ *
+ *    Attempts to allocate (oldPtr == NULL) or reallocate memory of the
+ *    requested size plus some more for future growth. The amount of
+ *    reallocation is adjusted depending on failure.
+ *
+ *
+ * Results:
+ *    Pointer to allocated memory block which is at least as large
+ *    as the requested size or NULL if allocation failed.
+ *
+ *------------------------------------------------------------------------
+ */
+void *
+TclAttemptReallocElemsEx(
+    void *oldPtr,		/* Pointer to memory block to reallocate or
+				 * NULL to indicate this is a new allocation */
+    Tcl_Size elemCount,		/* Allocation will store at least these many... */
+    Tcl_Size elemSize,		/* ...elements of this size */
+    Tcl_Size leadSize,		/* Additional leading space in bytes */
+    Tcl_Size *capacityPtr)	/* OUTPUT: Actual capacity is stored here if
+				 * non-NULL. Only modified on success */
+{
+    void *ptr;
+    Tcl_Size limit;
+    Tcl_Size attempt;
+
+    assert(elemCount > 0);
+    assert(elemSize > 0);
+    assert(elemSize < TCL_SIZE_MAX);
+    assert(leadSize >= 0);
+    assert(leadSize < TCL_SIZE_MAX);
+
+    limit = (TCL_SIZE_MAX - leadSize) / elemSize;
+    if (elemCount > limit) {
+	return NULL;
+    }
+    /* Loop trying for extra space, reducing request each time */
+    attempt = TclUpsizeAlloc(0, elemCount, limit);
+    ptr = NULL;
+    while (attempt > elemCount) {
+	if (oldPtr) {
+	    ptr = Tcl_AttemptRealloc(oldPtr, leadSize + attempt * elemSize);
+	} else {
+	    ptr = Tcl_AttemptAlloc(leadSize + attempt * elemSize);
+	}
+	if (ptr) {
+	    break;
+	}
+	attempt = TclUpsizeRetry(elemCount, attempt);
+    }
+    /* Try exact size as a last resort */
+    if (ptr == NULL) {
+	attempt = elemCount;
+	if (oldPtr) {
+	    ptr = Tcl_AttemptRealloc(oldPtr, leadSize + attempt * elemSize);
+	} else {
+	    ptr = Tcl_AttemptAlloc(leadSize + attempt * elemSize);
+	}
+    }
+    if (ptr && capacityPtr) {
+	*capacityPtr = attempt;
+    }
+    return ptr;
+}
+
+/*
+ *------------------------------------------------------------------------
+ *
+ * TclReallocElemsEx --
+ *
+ *    See TclAttemptReallocElemsEx. This function differs in that it panics
+ *    on failure.
+ *
+ * Results:
+ *    Non-NULL pointer to allocated memory block.
+ *
+ * Side effects:
+ *    Panics if memory of at least the requested size could not be
+ *    allocated.
+ *
+ *------------------------------------------------------------------------
+ */
+void *
+TclReallocElemsEx(
+    void *oldPtr,		/* Pointer to memory block to reallocate */
+    Tcl_Size elemCount,		/* Allocation will store at least these many... */
+    Tcl_Size elemSize,		/* ...elements of this size */
+    Tcl_Size leadSize,		/* Additional leading space in bytes */
+    Tcl_Size *capacityPtr)	/* OUTPUT: Actual capacity is stored here if
+				 * non-NULL. Only modified on success */
+{
+    void *ptr = TclAttemptReallocElemsEx(
+	oldPtr, elemCount, elemSize, leadSize, capacityPtr);
+    if (ptr == NULL) {
+	Tcl_Panic("Failed to reallocate %" TCL_SIZE_MODIFIER
+		  "d elements of size %" TCL_SIZE_MODIFIER "d bytes.",
+		  elemCount,
+		  elemSize);
+    }
+    return ptr;
+}
+
+/*
  *---------------------------------------------------------------------------
  *
  * TclFinalizeMemorySubsystem --
@@ -1301,7 +1404,7 @@ TclFinalizeMemorySubsystem(void)
     Tcl_MutexLock(ckallocMutexPtr);
 
     if (curTagPtr != NULL) {
-	TclpFree((char *) curTagPtr);
+	TclpFree(curTagPtr);
 	curTagPtr = NULL;
     }
     allocHead = NULL;
@@ -1309,7 +1412,7 @@ TclFinalizeMemorySubsystem(void)
     Tcl_MutexUnlock(ckallocMutexPtr);
 #endif
 
-#if USE_TCLALLOC
+#if defined(USE_TCLALLOC) && USE_TCLALLOC
     TclFinalizeAllocSubsystem();
 #endif
 }
@@ -1319,5 +1422,7 @@ TclFinalizeMemorySubsystem(void)
  * mode: c
  * c-basic-offset: 4
  * fill-column: 78
+ * tab-width: 8
+ * indent-tabs-mode: nil
  * End:
  */
diff --git a/generic/tclClock.c b/generic/tclClock.c
index cd4555e..ecba0c5 100644
--- a/generic/tclClock.c
+++ b/generic/tclClock.c
@@ -5,38 +5,19 @@
  *	the time and date facilities of TclX, by Mark Diekhans and Karl
  *	Lehenbauer.
  *
- * Copyright 1991-1995 Karl Lehenbauer and Mark Diekhans.
- * Copyright (c) 1995 Sun Microsystems, Inc.
- * Copyright (c) 2004 by Kevin B. Kenny.  All rights reserved.
+ * Copyright © 1991-1995 Karl Lehenbauer & Mark Diekhans.
+ * Copyright © 1995 Sun Microsystems, Inc.
+ * Copyright © 2004 Kevin B. Kenny. All rights reserved.
+ * Copyright © 2015 Sergey G. Brester aka sebres. All rights reserved.
  *
  * See the file "license.terms" for information on usage and redistribution of
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
  */
 
 #include "tclInt.h"
-
-/*
- * Windows has mktime. The configurators do not check.
- */
-
-#ifdef __WIN32__
-#define HAVE_MKTIME 1
-#endif
-
-/*
- * Constants
- */
-
-#define JULIAN_DAY_POSIX_EPOCH		2440588
-#define SECONDS_PER_DAY			86400
-#define JULIAN_SEC_POSIX_EPOCH	      (((Tcl_WideInt) JULIAN_DAY_POSIX_EPOCH) \
-					* SECONDS_PER_DAY)
-#define FOUR_CENTURIES			146097 /* days */
-#define JDAY_1_JAN_1_CE_JULIAN		1721424
-#define JDAY_1_JAN_1_CE_GREGORIAN	1721426
-#define ONE_CENTURY_GREGORIAN		36524  /* days */
-#define FOUR_YEARS			1461   /* days */
-#define ONE_YEAR			365    /* days */
+#include "tclTomMath.h"
+#include "tclStrIdxTree.h"
+#include "tclDate.h"
 
 /*
  * Table of the days in each month, leap and common years
@@ -55,71 +36,14 @@ static const int daysInPriorMonths[2][13] = {
  * Enumeration of the string literals used in [clock]
  */
 
-typedef enum ClockLiteral {
-    LIT__NIL,
-    LIT__DEFAULT_FORMAT,
-    LIT_BCE,		LIT_C,			
-    LIT_CANNOT_USE_GMT_AND_TIMEZONE,
-    LIT_CE,
-    LIT_DAYOFMONTH,	LIT_DAYOFWEEK,		LIT_DAYOFYEAR,
-    LIT_ERA,		LIT_GMT,		LIT_GREGORIAN,
-    LIT_INTEGER_VALUE_TOO_LARGE,
-    LIT_ISO8601WEEK,	LIT_ISO8601YEAR,
-    LIT_JULIANDAY,	LIT_LOCALSECONDS,
-    LIT_MONTH,
-    LIT_SECONDS,	LIT_TZNAME,		LIT_TZOFFSET,
-    LIT_YEAR,
-    LIT__END
-} ClockLiteral;
-static const char *const literals[] = {
-    "",
-    "%a %b %d %H:%M:%S %Z %Y",
-    "BCE",		"C",			
-    "cannot use -gmt and -timezone in same call",
-    "CE",
-    "dayOfMonth",	"dayOfWeek",		"dayOfYear",
-    "era",		":GMT",			"gregorian",
-    "integer value too large to represent",
-    "iso8601Week",	"iso8601Year",
-    "julianDay",	"localSeconds",
-    "month",
-    "seconds",		"tzName",		"tzOffset",
-    "year"
-};
+CLOCK_LITERAL_ARRAY(Literals);
 
-/*
- * Structure containing the client data for [clock]
- */
+/* Msgcat literals for exact match (mcKey) */
+CLOCK_LOCALE_LITERAL_ARRAY(MsgCtLiterals, "");
+/* Msgcat index literals prefixed with _IDX_, used for quick dictionary search */
+CLOCK_LOCALE_LITERAL_ARRAY(MsgCtLitIdxs, "_IDX_");
 
-typedef struct ClockClientData {
-    int refCount;		/* Number of live references */
-    Tcl_Obj** literals;		/* Pool of object literals */
-} ClockClientData;
-
-/*
- * Structure containing the fields used in [clock format] and [clock scan]
- */
-
-typedef struct TclDateFields {
-    Tcl_WideInt seconds;	/* Time expressed in seconds from the Posix
-				 * epoch */
-    Tcl_WideInt localSeconds;	/* Local time expressed in nominal seconds
-				 * from the Posix epoch */
-    int tzOffset;		/* Time zone offset in seconds east of
-				 * Greenwich */
-    Tcl_Obj* tzName;		/* Time zone name */
-    int julianDay;		/* Julian Day Number in local time zone */
-    enum {BCE=1, CE=0} era;	/* Era */
-    int gregorian;		/* Flag == 1 if the date is Gregorian */
-    int year;			/* Year of the era */
-    int dayOfYear;		/* Day of the year (1 January == 1) */
-    int month;			/* Month number */
-    int dayOfMonth;		/* Day of the month */
-    int iso8601Year;		/* ISO8601 week-based year */
-    int iso8601Week;		/* ISO8601 week number */
-    int dayOfWeek;		/* Day of the week */
-} TclDateFields;
-static const char* eras[] = { "CE", "BCE", NULL };
+static const char *const eras[] = { "CE", "BCE", NULL };
 
 /*
  * Thread specific data block holding a 'struct tm' for the 'gmtime' and
@@ -139,61 +63,51 @@ TCL_DECLARE_MUTEX(clockMutex)
  * Function prototypes for local procedures in this file:
  */
 
-static int		ConvertUTCToLocal(Tcl_Interp*,
-			    TclDateFields*, Tcl_Obj*, int);
-static int		ConvertUTCToLocalUsingTable(Tcl_Interp*,
-			    TclDateFields*, int, Tcl_Obj *const[]);
-static int		ConvertUTCToLocalUsingC(Tcl_Interp*,
-			    TclDateFields*, int);
-static int		ConvertLocalToUTC(Tcl_Interp*,
-			    TclDateFields*, Tcl_Obj*, int);
-static int		ConvertLocalToUTCUsingTable(Tcl_Interp*,
-			    TclDateFields*, int, Tcl_Obj *const[]);
-static int		ConvertLocalToUTCUsingC(Tcl_Interp*,
-			    TclDateFields*, int);
-static Tcl_Obj*		LookupLastTransition(Tcl_Interp*, Tcl_WideInt,
-			    int, Tcl_Obj *const *);
-static void		GetYearWeekDay(TclDateFields*, int);
-static void		GetGregorianEraYearDay(TclDateFields*, int);
-static void		GetMonthDay(TclDateFields*);
-static void		GetJulianDayFromEraYearWeekDay(TclDateFields*, int);
-static void		GetJulianDayFromEraYearMonthDay(TclDateFields*, int);
-static int		IsGregorianLeapYear(TclDateFields*);
-static int		WeekdayOnOrBefore(int, int);
-static int		ClockClicksObjCmd(
-			    ClientData clientData, Tcl_Interp *interp,
-			    int objc, Tcl_Obj *const objv[]);
-static int		ClockConvertlocaltoutcObjCmd(
-			    ClientData clientData, Tcl_Interp *interp,
-			    int objc, Tcl_Obj *const objv[]);
-static int		ClockGetdatefieldsObjCmd(
-			    ClientData clientData, Tcl_Interp *interp,
-			    int objc, Tcl_Obj *const objv[]);
-static int		ClockGetjuliandayfromerayearmonthdayObjCmd(
-			    ClientData clientData, Tcl_Interp *interp,
-			    int objc, Tcl_Obj *const objv[]);
-static int		ClockGetjuliandayfromerayearweekdayObjCmd(
-			    ClientData clientData, Tcl_Interp *interp,
-			    int objc, Tcl_Obj *const objv[]);
-static int		ClockGetenvObjCmd(
-			    ClientData clientData, Tcl_Interp *interp,
-			    int objc, Tcl_Obj *const objv[]);
-static int		ClockMicrosecondsObjCmd(
-			    ClientData clientData, Tcl_Interp *interp,
-			    int objc, Tcl_Obj *const objv[]);
-static int		ClockMillisecondsObjCmd(
-			    ClientData clientData, Tcl_Interp *interp,
-			    int objc, Tcl_Obj *const objv[]);
-static int		ClockParseformatargsObjCmd(
-			    ClientData clientData, Tcl_Interp* interp,
-			    int objc, Tcl_Obj *const objv[]);
-static int		ClockSecondsObjCmd(
-			    ClientData clientData, Tcl_Interp *interp,
-			    int objc, Tcl_Obj *const objv[]);
+static int		ConvertUTCToLocalUsingTable(Tcl_Interp *,
+			    TclDateFields *, Tcl_Size, Tcl_Obj *const[],
+			    Tcl_WideInt *rangesVal);
+static int		ConvertUTCToLocalUsingC(Tcl_Interp *,
+			    TclDateFields *, int);
+static int		ConvertLocalToUTC(ClockClientData *, Tcl_Interp *,
+			    TclDateFields *, Tcl_Obj *timezoneObj, int);
+static int		ConvertLocalToUTCUsingTable(Tcl_Interp *,
+			    TclDateFields *, int, Tcl_Obj *const[],
+			    Tcl_WideInt *rangesVal);
+static int		ConvertLocalToUTCUsingC(Tcl_Interp *,
+			    TclDateFields *, int);
+static Tcl_ObjCmdProc	ClockConfigureObjCmd;
+static void		GetYearWeekDay(TclDateFields *, int);
+static void		GetGregorianEraYearDay(TclDateFields *, int);
+static void		GetMonthDay(TclDateFields *);
+static Tcl_WideInt	WeekdayOnOrBefore(int, Tcl_WideInt);
+static Tcl_ObjCmdProc	ClockClicksObjCmd;
+static Tcl_ObjCmdProc	ClockConvertlocaltoutcObjCmd;
+static int		ClockGetDateFields(ClockClientData *,
+			    Tcl_Interp *interp, TclDateFields *fields,
+			    Tcl_Obj *timezoneObj, int changeover);
+static Tcl_ObjCmdProc	ClockGetdatefieldsObjCmd;
+static Tcl_ObjCmdProc	ClockGetjuliandayfromerayearmonthdayObjCmd;
+static Tcl_ObjCmdProc	ClockGetjuliandayfromerayearweekdayObjCmd;
+static Tcl_ObjCmdProc	ClockGetenvObjCmd;
+static Tcl_ObjCmdProc	ClockMicrosecondsObjCmd;
+static Tcl_ObjCmdProc	ClockMillisecondsObjCmd;
+static Tcl_ObjCmdProc	ClockSecondsObjCmd;
+static Tcl_ObjCmdProc	ClockFormatObjCmd;
+static Tcl_ObjCmdProc	ClockScanObjCmd;
+static int		ClockScanCommit(DateInfo *info,
+			    ClockFmtScnCmdArgs *opts);
+static int		ClockFreeScan(DateInfo *info,
+			    Tcl_Obj *strObj, ClockFmtScnCmdArgs *opts);
+static int		ClockCalcRelTime(DateInfo *info,
+			    ClockFmtScnCmdArgs *opts);
+static Tcl_ObjCmdProc	ClockAddObjCmd;
+static int		ClockValidDate(DateInfo *,
+			    ClockFmtScnCmdArgs *, int stage);
 static struct tm *	ThreadSafeLocalTime(const time_t *);
-static void		TzsetIfNecessary(void);
-static void		ClockDeleteCmdProc(ClientData);
-
+static size_t		TzsetIfNecessary(void);
+static void		ClockDeleteCmdProc(void *);
+static Tcl_ObjCmdProc	ClockSafeCatchCmd;
+static void		ClockFinalize(void *);
 /*
  * Structure containing description of "native" clock commands to create.
  */
@@ -205,23 +119,28 @@ struct ClockCommand {
     Tcl_ObjCmdProc *objCmdProc;	/* Function that implements the command. This
 				 * will always have the ClockClientData sent
 				 * to it, but may well ignore this data. */
+    CompileProc *compileProc;	/* The compiler for the command. */
+    void *clientData;		/* Any clientData to give the command (if NULL
+				 * a reference to ClockClientData will be sent) */
 };
 
 static const struct ClockCommand clockCommands[] = {
-    { "clicks",			ClockClicksObjCmd },
-    { "getenv",			ClockGetenvObjCmd },
-    { "microseconds",		ClockMicrosecondsObjCmd },
-    { "milliseconds",		ClockMillisecondsObjCmd },
-    { "seconds",		ClockSecondsObjCmd },
-    { "Oldscan",		TclClockOldscanObjCmd },
-    { "ConvertLocalToUTC",	ClockConvertlocaltoutcObjCmd },
-    { "GetDateFields",		ClockGetdatefieldsObjCmd },
-    { "GetJulianDayFromEraYearMonthDay",
-		ClockGetjuliandayfromerayearmonthdayObjCmd },
-    { "GetJulianDayFromEraYearWeekDay",
-    		ClockGetjuliandayfromerayearweekdayObjCmd },
-    { "ParseFormatArgs",	ClockParseformatargsObjCmd },
-    { NULL, NULL }
+    {"add",		ClockAddObjCmd,		TclCompileBasicMin1ArgCmd, NULL},
+    {"clicks",		ClockClicksObjCmd,	TclCompileClockClicksCmd,  NULL},
+    {"format",		ClockFormatObjCmd,	TclCompileBasicMin1ArgCmd, NULL},
+    {"getenv",		ClockGetenvObjCmd,	TclCompileBasicMin1ArgCmd, NULL},
+    {"microseconds",	ClockMicrosecondsObjCmd,TclCompileClockReadingCmd, INT2PTR(1)},
+    {"milliseconds",	ClockMillisecondsObjCmd,TclCompileClockReadingCmd, INT2PTR(2)},
+    {"scan",		ClockScanObjCmd,	TclCompileBasicMin1ArgCmd, NULL},
+    {"seconds",		ClockSecondsObjCmd,	TclCompileClockReadingCmd, INT2PTR(3)},
+    {"ConvertLocalToUTC", ClockConvertlocaltoutcObjCmd,		NULL, NULL},
+    {"GetDateFields",	  ClockGetdatefieldsObjCmd,		NULL, NULL},
+    {"GetJulianDayFromEraYearMonthDay",
+		ClockGetjuliandayfromerayearmonthdayObjCmd,	NULL, NULL},
+    {"GetJulianDayFromEraYearWeekDay",
+		ClockGetjuliandayfromerayearweekdayObjCmd,	NULL, NULL},
+    {"catch",		ClockSafeCatchCmd,	TclCompileBasicMin1ArgCmd, NULL},
+    {NULL, NULL, NULL, NULL}
 };
 
 /*
@@ -249,12 +168,22 @@ TclClockInit(
     const struct ClockCommand *clockCmdPtr;
     char cmdName[50];		/* Buffer large enough to hold the string
 				 *::tcl::clock::GetJulianDayFromEraYearMonthDay
-				 * plus a terminating NULL. */
+				 * plus a terminating NUL. */
+    Command *cmdPtr;
     ClockClientData *data;
     int i;
 
+    static int initialized = 0;	/* global clock engine initialized (in process) */
+    /*
+     * Register handler to finalize clock on exit.
+     */
+    if (!initialized) {
+	Tcl_CreateExitHandler(ClockFinalize, NULL);
+	initialized = 1;
+    }
+
     /*
-     * Safe interps get [::clock] as alias to a master, so do not need their
+     * Safe interps get [::clock] as alias to a parent, so do not need their
      * own copies of the support routines.
      */
 
@@ -266,26 +195,1180 @@ TclClockInit(
      * Create the client data, which is a refcounted literal pool.
      */
 
-    data = (ClockClientData *) ckalloc(sizeof(ClockClientData));
+    data = (ClockClientData *)Tcl_Alloc(sizeof(ClockClientData));
     data->refCount = 0;
-    data->literals = (Tcl_Obj**) ckalloc(LIT__END * sizeof(Tcl_Obj*));
+    data->literals = (Tcl_Obj **)Tcl_Alloc(LIT__END * sizeof(Tcl_Obj*));
     for (i = 0; i < LIT__END; ++i) {
-	data->literals[i] = Tcl_NewStringObj(literals[i], -1);
-	Tcl_IncrRefCount(data->literals[i]);
+	TclInitObjRef(data->literals[i], Tcl_NewStringObj(
+		Literals[i], TCL_AUTO_LENGTH));
     }
+    data->mcLiterals = NULL;
+    data->mcLitIdxs = NULL;
+    data->mcDicts = NULL;
+    data->lastTZEpoch = 0;
+    data->currentYearCentury = ClockDefaultYearCentury;
+    data->yearOfCenturySwitch = ClockDefaultCenturySwitch;
+    data->validMinYear = INT_MIN;
+    data->validMaxYear = INT_MAX;
+    /* corresponds max of JDN in sqlite - 9999-12-31 23:59:59 per default */
+    data->maxJDN = 5373484.499999994;
+
+    data->systemTimeZone = NULL;
+    data->systemSetupTZData = NULL;
+    data->gmtSetupTimeZoneUnnorm = NULL;
+    data->gmtSetupTimeZone = NULL;
+    data->gmtSetupTZData = NULL;
+    data->gmtTZName = NULL;
+    data->lastSetupTimeZoneUnnorm = NULL;
+    data->lastSetupTimeZone = NULL;
+    data->lastSetupTZData = NULL;
+    data->prevSetupTimeZoneUnnorm = NULL;
+    data->prevSetupTimeZone = NULL;
+    data->prevSetupTZData = NULL;
+
+    data->defaultLocale = NULL;
+    data->defaultLocaleDict = NULL;
+    data->currentLocale = NULL;
+    data->currentLocaleDict = NULL;
+    data->lastUsedLocaleUnnorm = NULL;
+    data->lastUsedLocale = NULL;
+    data->lastUsedLocaleDict = NULL;
+    data->prevUsedLocaleUnnorm = NULL;
+    data->prevUsedLocale = NULL;
+    data->prevUsedLocaleDict = NULL;
+
+    data->lastBase.timezoneObj = NULL;
+
+    memset(&data->lastTZOffsCache, 0, sizeof(data->lastTZOffsCache));
+
+    data->defFlags = CLF_VALIDATE;
 
     /*
      * Install the commands.
      */
 
-    strcpy(cmdName, "::tcl::clock::");
 #define TCL_CLOCK_PREFIX_LEN 14 /* == strlen("::tcl::clock::") */
+    memcpy(cmdName, "::tcl::clock::", TCL_CLOCK_PREFIX_LEN);
     for (clockCmdPtr=clockCommands ; clockCmdPtr->name!=NULL ; clockCmdPtr++) {
+	void *clientData;
+
 	strcpy(cmdName + TCL_CLOCK_PREFIX_LEN, clockCmdPtr->name);
-	data->refCount++;
-	Tcl_CreateObjCommand(interp, cmdName, clockCmdPtr->objCmdProc, data,
-		ClockDeleteCmdProc);
+	if (!(clientData = clockCmdPtr->clientData)) {
+	    clientData = data;
+	    data->refCount++;
+	}
+	cmdPtr = (Command *)Tcl_CreateObjCommand(interp, cmdName,
+		clockCmdPtr->objCmdProc, clientData,
+		clockCmdPtr->clientData ? NULL : ClockDeleteCmdProc);
+	cmdPtr->compileProc = clockCmdPtr->compileProc ?
+		clockCmdPtr->compileProc : TclCompileBasicMin0ArgCmd;
+    }
+    cmdPtr = (Command *) Tcl_CreateObjCommand(interp,
+	    "::tcl::unsupported::clock::configure",
+	    ClockConfigureObjCmd, data, ClockDeleteCmdProc);
+    data->refCount++;
+    cmdPtr->compileProc = TclCompileBasicMin0ArgCmd;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ClockConfigureClear --
+ *
+ *	Clean up cached resp. run-time storages used in clock commands.
+ *
+ *	Shared usage for clean-up (ClockDeleteCmdProc) and "configure -clear".
+ *
+ * Results:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+ClockConfigureClear(
+    ClockClientData *data)
+{
+    ClockFrmScnClearCaches();
+
+    data->lastTZEpoch = 0;
+    TclUnsetObjRef(data->systemTimeZone);
+    TclUnsetObjRef(data->systemSetupTZData);
+    TclUnsetObjRef(data->gmtSetupTimeZoneUnnorm);
+    TclUnsetObjRef(data->gmtSetupTimeZone);
+    TclUnsetObjRef(data->gmtSetupTZData);
+    TclUnsetObjRef(data->gmtTZName);
+    TclUnsetObjRef(data->lastSetupTimeZoneUnnorm);
+    TclUnsetObjRef(data->lastSetupTimeZone);
+    TclUnsetObjRef(data->lastSetupTZData);
+    TclUnsetObjRef(data->prevSetupTimeZoneUnnorm);
+    TclUnsetObjRef(data->prevSetupTimeZone);
+    TclUnsetObjRef(data->prevSetupTZData);
+
+    TclUnsetObjRef(data->defaultLocale);
+    data->defaultLocaleDict = NULL;
+    TclUnsetObjRef(data->currentLocale);
+    data->currentLocaleDict = NULL;
+    TclUnsetObjRef(data->lastUsedLocaleUnnorm);
+    TclUnsetObjRef(data->lastUsedLocale);
+    data->lastUsedLocaleDict = NULL;
+    TclUnsetObjRef(data->prevUsedLocaleUnnorm);
+    TclUnsetObjRef(data->prevUsedLocale);
+    data->prevUsedLocaleDict = NULL;
+
+    TclUnsetObjRef(data->lastBase.timezoneObj);
+
+    TclUnsetObjRef(data->lastTZOffsCache[0].timezoneObj);
+    TclUnsetObjRef(data->lastTZOffsCache[0].tzName);
+    TclUnsetObjRef(data->lastTZOffsCache[1].timezoneObj);
+    TclUnsetObjRef(data->lastTZOffsCache[1].tzName);
+
+    TclUnsetObjRef(data->mcDicts);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ClockDeleteCmdProc --
+ *
+ *	Remove a reference to the clock client data, and clean up memory
+ *	when it's all gone.
+ *
+ * Results:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+static void
+ClockDeleteCmdProc(
+    void *clientData)		/* Opaque pointer to the client data */
+{
+    ClockClientData *data = (ClockClientData *)clientData;
+    int i;
+
+    if (data->refCount-- <= 1) {
+	for (i = 0; i < LIT__END; ++i) {
+	    Tcl_DecrRefCount(data->literals[i]);
+	}
+	if (data->mcLiterals != NULL) {
+	    for (i = 0; i < MCLIT__END; ++i) {
+		Tcl_DecrRefCount(data->mcLiterals[i]);
+	    }
+	    Tcl_Free(data->mcLiterals);
+	    data->mcLiterals = NULL;
+	}
+	if (data->mcLitIdxs != NULL) {
+	    for (i = 0; i < MCLIT__END; ++i) {
+		Tcl_DecrRefCount(data->mcLitIdxs[i]);
+	    }
+	    Tcl_Free(data->mcLitIdxs);
+	    data->mcLitIdxs = NULL;
+	}
+
+	ClockConfigureClear(data);
+
+	Tcl_Free(data->literals);
+	Tcl_Free(data);
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * SavePrevTimezoneObj --
+ *
+ *	Used to store previously used/cached time zone (makes it reusable).
+ *
+ *	This enables faster switch between time zones (e. g. to convert from
+ *	one to another).
+ *
+ * Results:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+static inline void
+SavePrevTimezoneObj(
+    ClockClientData *dataPtr)	/* Client data containing literal pool */
+{
+    Tcl_Obj *timezoneObj = dataPtr->lastSetupTimeZone;
+
+    if (timezoneObj && timezoneObj != dataPtr->prevSetupTimeZone) {
+	TclSetObjRef(dataPtr->prevSetupTimeZoneUnnorm, dataPtr->lastSetupTimeZoneUnnorm);
+	TclSetObjRef(dataPtr->prevSetupTimeZone, timezoneObj);
+	TclSetObjRef(dataPtr->prevSetupTZData, dataPtr->lastSetupTZData);
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * NormTimezoneObj --
+ *
+ *	Normalizes the timezone object (used for caching puposes).
+ *
+ *	If already cached time zone could be found, returns this
+ *	object (last setup or last used, system (current) or gmt).
+ *
+ * Results:
+ *	Normalized tcl object pointer.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static Tcl_Obj *
+NormTimezoneObj(
+    ClockClientData *dataPtr,	/* Client data containing literal pool */
+    Tcl_Obj *timezoneObj,	/* Name of zone to find */
+    int *loaded)		/* Used to recognized TZ was loaded */
+{
+    const char *tz;
+
+    *loaded = 1;
+    if (timezoneObj == dataPtr->lastSetupTimeZoneUnnorm
+	    && dataPtr->lastSetupTimeZone != NULL) {
+	return dataPtr->lastSetupTimeZone;
+    }
+    if (timezoneObj == dataPtr->prevSetupTimeZoneUnnorm
+	    && dataPtr->prevSetupTimeZone != NULL) {
+	return dataPtr->prevSetupTimeZone;
+    }
+    if (timezoneObj == dataPtr->gmtSetupTimeZoneUnnorm
+	    && dataPtr->gmtSetupTimeZone != NULL) {
+	return dataPtr->literals[LIT_GMT];
+    }
+    if (timezoneObj == dataPtr->lastSetupTimeZone
+	    || timezoneObj == dataPtr->prevSetupTimeZone
+	    || timezoneObj == dataPtr->gmtSetupTimeZone
+	    || timezoneObj == dataPtr->systemTimeZone) {
+	return timezoneObj;
+    }
+
+    tz = TclGetString(timezoneObj);
+    if (dataPtr->lastSetupTimeZone != NULL
+	    && strcmp(tz, TclGetString(dataPtr->lastSetupTimeZone)) == 0) {
+	TclSetObjRef(dataPtr->lastSetupTimeZoneUnnorm, timezoneObj);
+	return dataPtr->lastSetupTimeZone;
+    }
+    if (dataPtr->prevSetupTimeZone != NULL
+	    && strcmp(tz, TclGetString(dataPtr->prevSetupTimeZone)) == 0) {
+	TclSetObjRef(dataPtr->prevSetupTimeZoneUnnorm, timezoneObj);
+	return dataPtr->prevSetupTimeZone;
+    }
+    if (dataPtr->systemTimeZone != NULL
+	    && strcmp(tz, TclGetString(dataPtr->systemTimeZone)) == 0) {
+	return dataPtr->systemTimeZone;
+    }
+    if (strcmp(tz, Literals[LIT_GMT]) == 0) {
+	TclSetObjRef(dataPtr->gmtSetupTimeZoneUnnorm, timezoneObj);
+	if (dataPtr->gmtSetupTimeZone == NULL) {
+	    *loaded = 0;
+	}
+	return dataPtr->literals[LIT_GMT];
+    }
+    /* unknown/unloaded tz - recache/revalidate later as last-setup if needed */
+    *loaded = 0;
+    return timezoneObj;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ClockGetSystemLocale --
+ *
+ *	Returns system locale.
+ *
+ *	Executes ::tcl::clock::GetSystemLocale in given interpreter.
+ *
+ * Results:
+ *	Returns system locale tcl object.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static inline Tcl_Obj *
+ClockGetSystemLocale(
+    ClockClientData *dataPtr,	/* Opaque pointer to literal pool, etc. */
+    Tcl_Interp *interp)		/* Tcl interpreter */
+{
+    if (Tcl_EvalObjv(interp, 1, &dataPtr->literals[LIT_GETSYSTEMLOCALE], 0) != TCL_OK) {
+	return NULL;
+    }
+
+    return Tcl_GetObjResult(interp);
+}
+/*
+ *----------------------------------------------------------------------
+ *
+ * ClockGetCurrentLocale --
+ *
+ *	Returns current locale.
+ *
+ *	Executes ::tcl::clock::mclocale in given interpreter.
+ *
+ * Results:
+ *	Returns current locale tcl object.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static inline Tcl_Obj *
+ClockGetCurrentLocale(
+    ClockClientData *dataPtr,	/* Client data containing literal pool */
+    Tcl_Interp *interp)		/* Tcl interpreter */
+{
+    if (Tcl_EvalObjv(interp, 1, &dataPtr->literals[LIT_GETCURRENTLOCALE], 0) != TCL_OK) {
+	return NULL;
+    }
+
+    TclSetObjRef(dataPtr->currentLocale, Tcl_GetObjResult(interp));
+    dataPtr->currentLocaleDict = NULL;
+    Tcl_ResetResult(interp);
+
+    return dataPtr->currentLocale;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * SavePrevLocaleObj --
+ *
+ *	Used to store previously used/cached locale (makes it reusable).
+ *
+ *	This enables faster switch between locales (e. g. to convert from one to another).
+ *
+ * Results:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static inline void
+SavePrevLocaleObj(
+    ClockClientData *dataPtr)	/* Client data containing literal pool */
+{
+    Tcl_Obj *localeObj = dataPtr->lastUsedLocale;
+
+    if (localeObj && localeObj != dataPtr->prevUsedLocale) {
+	TclSetObjRef(dataPtr->prevUsedLocaleUnnorm, dataPtr->lastUsedLocaleUnnorm);
+	TclSetObjRef(dataPtr->prevUsedLocale, localeObj);
+	/* mcDicts owns reference to dict */
+	dataPtr->prevUsedLocaleDict = dataPtr->lastUsedLocaleDict;
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * NormLocaleObj --
+ *
+ *	Normalizes the locale object (used for caching puposes).
+ *
+ *	If already cached locale could be found, returns this
+ *	object (current, system (OS) or last used locales).
+ *
+ * Results:
+ *	Normalized tcl object pointer.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static Tcl_Obj *
+NormLocaleObj(
+    ClockClientData *dataPtr,	/* Client data containing literal pool */
+    Tcl_Interp *interp,		/* Tcl interpreter */
+    Tcl_Obj *localeObj,
+    Tcl_Obj **mcDictObj)
+{
+    const char *loc, *loc2;
+
+    if (localeObj == NULL
+	    || localeObj == dataPtr->literals[LIT_C]
+	    || localeObj == dataPtr->defaultLocale) {
+	*mcDictObj = dataPtr->defaultLocaleDict;
+	return dataPtr->defaultLocale ?
+		dataPtr->defaultLocale : dataPtr->literals[LIT_C];
+    }
+
+    if (localeObj == dataPtr->currentLocale
+	    || localeObj == dataPtr->literals[LIT_CURRENT]) {
+	if (dataPtr->currentLocale == NULL) {
+	    ClockGetCurrentLocale(dataPtr, interp);
+	}
+	*mcDictObj = dataPtr->currentLocaleDict;
+	return dataPtr->currentLocale;
+    }
+
+    if (localeObj == dataPtr->lastUsedLocale
+	    || localeObj == dataPtr->lastUsedLocaleUnnorm) {
+	*mcDictObj = dataPtr->lastUsedLocaleDict;
+	return dataPtr->lastUsedLocale;
+    }
+
+    if (localeObj == dataPtr->prevUsedLocale
+	    || localeObj == dataPtr->prevUsedLocaleUnnorm) {
+	*mcDictObj = dataPtr->prevUsedLocaleDict;
+	return dataPtr->prevUsedLocale;
+    }
+
+    loc = TclGetString(localeObj);
+    if (dataPtr->currentLocale != NULL
+	    && (localeObj == dataPtr->currentLocale
+	    || (localeObj->length == dataPtr->currentLocale->length
+	    && strcasecmp(loc, TclGetString(dataPtr->currentLocale)) == 0))) {
+	*mcDictObj = dataPtr->currentLocaleDict;
+	return dataPtr->currentLocale;
+    }
+
+    if (dataPtr->lastUsedLocale != NULL
+	    && (localeObj == dataPtr->lastUsedLocale
+	    || (localeObj->length == dataPtr->lastUsedLocale->length
+	    && strcasecmp(loc, TclGetString(dataPtr->lastUsedLocale)) == 0))) {
+	*mcDictObj = dataPtr->lastUsedLocaleDict;
+	TclSetObjRef(dataPtr->lastUsedLocaleUnnorm, localeObj);
+	return dataPtr->lastUsedLocale;
+    }
+
+    if (dataPtr->prevUsedLocale != NULL
+	    && (localeObj == dataPtr->prevUsedLocale
+	    || (localeObj->length == dataPtr->prevUsedLocale->length
+	    && strcasecmp(loc, TclGetString(dataPtr->prevUsedLocale)) == 0))) {
+	*mcDictObj = dataPtr->prevUsedLocaleDict;
+	TclSetObjRef(dataPtr->prevUsedLocaleUnnorm, localeObj);
+	return dataPtr->prevUsedLocale;
+    }
+
+    if ((localeObj->length == 1 /* C */
+	    && strcasecmp(loc, Literals[LIT_C]) == 0)
+	    || (dataPtr->defaultLocale && (loc2 = TclGetString(dataPtr->defaultLocale))
+	    && localeObj->length == dataPtr->defaultLocale->length
+	    && strcasecmp(loc, loc2) == 0)) {
+	*mcDictObj = dataPtr->defaultLocaleDict;
+	return dataPtr->defaultLocale ?
+		dataPtr->defaultLocale : dataPtr->literals[LIT_C];
+    }
+
+    if (localeObj->length == 7 /* current */
+	    && strcasecmp(loc, Literals[LIT_CURRENT]) == 0) {
+	if (dataPtr->currentLocale == NULL) {
+	    ClockGetCurrentLocale(dataPtr, interp);
+	}
+	*mcDictObj = dataPtr->currentLocaleDict;
+	return dataPtr->currentLocale;
+    }
+
+    if ((localeObj->length == 6 /* system */
+	    && strcasecmp(loc, Literals[LIT_SYSTEM]) == 0)) {
+	SavePrevLocaleObj(dataPtr);
+	TclSetObjRef(dataPtr->lastUsedLocaleUnnorm, localeObj);
+	localeObj = ClockGetSystemLocale(dataPtr, interp);
+	TclSetObjRef(dataPtr->lastUsedLocale, localeObj);
+	*mcDictObj = NULL;
+	return localeObj;
+    }
+
+    *mcDictObj = NULL;
+    return localeObj;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ClockMCDict --
+ *
+ *	Retrieves a localized storage dictionary object for the given
+ *	locale object.
+ *
+ *	This corresponds with call `::tcl::clock::mcget locale`.
+ *	Cached representation stored in options (for further access).
+ *
+ * Results:
+ *	Tcl-object contains smart reference to msgcat dictionary.
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tcl_Obj *
+ClockMCDict(
+    ClockFmtScnCmdArgs *opts)
+{
+    ClockClientData *dataPtr = opts->dataPtr;
+
+    /* if dict not yet retrieved */
+    if (opts->mcDictObj == NULL) {
+
+	/* if locale was not yet used */
+	if (!(opts->flags & CLF_LOCALE_USED)) {
+	    opts->localeObj = NormLocaleObj(dataPtr, opts->interp,
+		    opts->localeObj, &opts->mcDictObj);
+
+	    if (opts->localeObj == NULL) {
+		Tcl_SetObjResult(opts->interp, Tcl_NewStringObj(
+			"locale not specified and no default locale set",
+			TCL_AUTO_LENGTH));
+		Tcl_SetErrorCode(opts->interp, "CLOCK", "badOption", (char *)NULL);
+		return NULL;
+	    }
+	    opts->flags |= CLF_LOCALE_USED;
+
+	    /* check locale literals already available (on demand creation) */
+	    if (dataPtr->mcLiterals == NULL) {
+		int i;
+
+		dataPtr->mcLiterals = (Tcl_Obj **)
+			Tcl_Alloc(MCLIT__END * sizeof(Tcl_Obj*));
+		for (i = 0; i < MCLIT__END; ++i) {
+		    TclInitObjRef(dataPtr->mcLiterals[i], Tcl_NewStringObj(
+			    MsgCtLiterals[i], TCL_AUTO_LENGTH));
+		}
+	    }
+	}
+
+	/* check or obtain mcDictObj (be sure it's modifiable) */
+	if (opts->mcDictObj == NULL || opts->mcDictObj->refCount > 1) {
+	    Tcl_Size ref = 1;
+
+	    /* first try to find locale catalog dict */
+	    if (dataPtr->mcDicts == NULL) {
+		TclSetObjRef(dataPtr->mcDicts, Tcl_NewDictObj());
+	    }
+	    Tcl_DictObjGet(NULL, dataPtr->mcDicts,
+		    opts->localeObj, &opts->mcDictObj);
+
+	    if (opts->mcDictObj == NULL) {
+		/* get msgcat dictionary - ::tcl::clock::mcget locale */
+		Tcl_Obj *callargs[2];
+
+		callargs[0] = dataPtr->literals[LIT_MCGET];
+		callargs[1] = opts->localeObj;
+
+		if (Tcl_EvalObjv(opts->interp, 2, callargs, 0) != TCL_OK) {
+		    return NULL;
+		}
+
+		opts->mcDictObj = Tcl_GetObjResult(opts->interp);
+		Tcl_ResetResult(opts->interp);
+		ref = 0; /* new object is not yet referenced */
+	    }
+
+	    /* be sure that object reference doesn't increase (dict changeable) */
+	    if (opts->mcDictObj->refCount > ref) {
+		/* smart reference (shared dict as object with no ref-counter) */
+		opts->mcDictObj = TclDictObjSmartRef(opts->interp,
+			opts->mcDictObj);
+	    }
+
+	    /* create exactly one reference to catalog / make it searchable for future */
+	    Tcl_DictObjPut(NULL, dataPtr->mcDicts, opts->localeObj,
+		    opts->mcDictObj);
+
+	    if (opts->localeObj == dataPtr->literals[LIT_C]
+		    || opts->localeObj == dataPtr->defaultLocale) {
+		dataPtr->defaultLocaleDict = opts->mcDictObj;
+	    }
+	    if (opts->localeObj == dataPtr->currentLocale) {
+		dataPtr->currentLocaleDict = opts->mcDictObj;
+	    } else if (opts->localeObj == dataPtr->lastUsedLocale) {
+		dataPtr->lastUsedLocaleDict = opts->mcDictObj;
+	    } else {
+		SavePrevLocaleObj(dataPtr);
+		TclSetObjRef(dataPtr->lastUsedLocale, opts->localeObj);
+		TclUnsetObjRef(dataPtr->lastUsedLocaleUnnorm);
+		dataPtr->lastUsedLocaleDict = opts->mcDictObj;
+	    }
+	}
+    }
+
+    return opts->mcDictObj;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ClockMCGet --
+ *
+ *	Retrieves a msgcat value for the given literal integer mcKey
+ *	from localized storage (corresponding given locale object)
+ *	by mcLiterals[mcKey] (e. g. MONTHS_FULL).
+ *
+ * Results:
+ *	Tcl-object contains localized value.
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tcl_Obj *
+ClockMCGet(
+    ClockFmtScnCmdArgs *opts,
+    int mcKey)
+{
+    Tcl_Obj *valObj = NULL;
+
+    if (opts->mcDictObj == NULL) {
+	ClockMCDict(opts);
+	if (opts->mcDictObj == NULL) {
+	    return NULL;
+	}
+    }
+
+    Tcl_DictObjGet(opts->interp, opts->mcDictObj,
+	    opts->dataPtr->mcLiterals[mcKey], &valObj);
+    return valObj; /* or NULL in obscure case if Tcl_DictObjGet failed */
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ClockMCGetIdx --
+ *
+ *	Retrieves an indexed msgcat value for the given literal integer mcKey
+ *	from localized storage (corresponding given locale object)
+ *	by mcLitIdxs[mcKey] (e. g. _IDX_MONTHS_FULL).
+ *
+ * Results:
+ *	Tcl-object contains localized indexed value.
+ *
+ *----------------------------------------------------------------------
+ */
+
+MODULE_SCOPE Tcl_Obj *
+ClockMCGetIdx(
+    ClockFmtScnCmdArgs *opts,
+    int mcKey)
+{
+    ClockClientData *dataPtr = opts->dataPtr;
+    Tcl_Obj *valObj = NULL;
+
+    if (opts->mcDictObj == NULL) {
+	ClockMCDict(opts);
+	if (opts->mcDictObj == NULL) {
+	    return NULL;
+	}
+    }
+
+    /* try to get indices object */
+    if (dataPtr->mcLitIdxs == NULL) {
+	return NULL;
+    }
+
+    if (Tcl_DictObjGet(NULL, opts->mcDictObj,
+	    dataPtr->mcLitIdxs[mcKey], &valObj) != TCL_OK) {
+	return NULL;
+    }
+    return valObj;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ClockMCSetIdx --
+ *
+ *	Sets an indexed msgcat value for the given literal integer mcKey
+ *	in localized storage (corresponding given locale object)
+ *	by mcLitIdxs[mcKey] (e. g. _IDX_MONTHS_FULL).
+ *
+ * Results:
+ *	Returns a standard Tcl result.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+ClockMCSetIdx(
+    ClockFmtScnCmdArgs *opts,
+    int mcKey,
+    Tcl_Obj *valObj)
+{
+    ClockClientData *dataPtr = opts->dataPtr;
+
+    if (opts->mcDictObj == NULL) {
+	ClockMCDict(opts);
+	if (opts->mcDictObj == NULL) {
+	    return TCL_ERROR;
+	}
+    }
+
+    /* if literal storage for indices not yet created */
+    if (dataPtr->mcLitIdxs == NULL) {
+	int i;
+
+	dataPtr->mcLitIdxs = (Tcl_Obj **)Tcl_Alloc(MCLIT__END * sizeof(Tcl_Obj*));
+	for (i = 0; i < MCLIT__END; ++i) {
+	    TclInitObjRef(dataPtr->mcLitIdxs[i],
+		    Tcl_NewStringObj(MsgCtLitIdxs[i], TCL_AUTO_LENGTH));
+	}
+    }
+
+    return Tcl_DictObjPut(opts->interp, opts->mcDictObj,
+	    dataPtr->mcLitIdxs[mcKey], valObj);
+}
+
+static void
+TimezoneLoaded(
+    ClockClientData *dataPtr,
+    Tcl_Obj *timezoneObj,	/* Name of zone was loaded */
+    Tcl_Obj *tzUnnormObj)	/* Name of zone was loaded */
+{
+    /* don't overwrite last-setup with GMT (special case) */
+    if (timezoneObj == dataPtr->literals[LIT_GMT]) {
+	/* mark GMT zone loaded */
+	if (dataPtr->gmtSetupTimeZone == NULL) {
+	    TclSetObjRef(dataPtr->gmtSetupTimeZone,
+		    dataPtr->literals[LIT_GMT]);
+	}
+	TclSetObjRef(dataPtr->gmtSetupTimeZoneUnnorm, tzUnnormObj);
+	return;
+    }
+
+    /* last setup zone loaded */
+    if (dataPtr->lastSetupTimeZone != timezoneObj) {
+	SavePrevTimezoneObj(dataPtr);
+	TclSetObjRef(dataPtr->lastSetupTimeZone, timezoneObj);
+	TclUnsetObjRef(dataPtr->lastSetupTZData);
     }
+    TclSetObjRef(dataPtr->lastSetupTimeZoneUnnorm, tzUnnormObj);
+}
+/*
+ *----------------------------------------------------------------------
+ *
+ * ClockConfigureObjCmd --
+ *
+ *	This function is invoked to process the Tcl "::tcl::unsupported::clock::configure"
+ *	(internal, unsupported) command.
+ *
+ * Usage:
+ *	::tcl::unsupported::clock::configure ?-option ?value??
+ *
+ * Results:
+ *	Returns a standard Tcl result.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+ClockConfigureObjCmd(
+    void *clientData,		/* Client data containing literal pool */
+    Tcl_Interp *interp,		/* Tcl interpreter */
+    int objc,			/* Parameter count */
+    Tcl_Obj *const objv[])	/* Parameter vector */
+{
+    ClockClientData *dataPtr = (ClockClientData *)clientData;
+    static const char *const options[] = {
+	"-default-locale",	"-clear",	  "-current-locale",
+	"-year-century",  "-century-switch",
+	"-min-year", "-max-year", "-max-jdn", "-validate",
+	"-init-complete",	  "-setup-tz", "-system-tz", NULL
+    };
+    enum optionInd {
+	CLOCK_DEFAULT_LOCALE, CLOCK_CLEAR_CACHE, CLOCK_CURRENT_LOCALE,
+	CLOCK_YEAR_CENTURY, CLOCK_CENTURY_SWITCH,
+	CLOCK_MIN_YEAR, CLOCK_MAX_YEAR, CLOCK_MAX_JDN, CLOCK_VALIDATE,
+	CLOCK_INIT_COMPLETE,  CLOCK_SETUP_TZ, CLOCK_SYSTEM_TZ
+    };
+    int optionIndex;		/* Index of an option. */
+    Tcl_Size i;
+
+    for (i = 1; i < objc; i++) {
+	if (Tcl_GetIndexFromObj(interp, objv[i++], options,
+		"option", 0, &optionIndex) != TCL_OK) {
+	    Tcl_SetErrorCode(interp, "CLOCK", "badOption",
+		    TclGetString(objv[i - 1]), (char *)NULL);
+	    return TCL_ERROR;
+	}
+	switch (optionIndex) {
+	case CLOCK_SYSTEM_TZ: {
+	    /* validate current tz-epoch */
+	    size_t lastTZEpoch = TzsetIfNecessary();
+
+	    if (i < objc) {
+		if (dataPtr->systemTimeZone != objv[i]) {
+		    TclSetObjRef(dataPtr->systemTimeZone, objv[i]);
+		    TclUnsetObjRef(dataPtr->systemSetupTZData);
+		}
+		dataPtr->lastTZEpoch = lastTZEpoch;
+	    }
+	    if (i + 1 >= objc && dataPtr->systemTimeZone != NULL
+		    && dataPtr->lastTZEpoch == lastTZEpoch) {
+		Tcl_SetObjResult(interp, dataPtr->systemTimeZone);
+	    }
+	    break;
+	}
+	case CLOCK_SETUP_TZ:
+	    if (i < objc) {
+		int loaded;
+		Tcl_Obj *timezoneObj = NormTimezoneObj(dataPtr, objv[i], &loaded);
+
+		if (!loaded) {
+		    TimezoneLoaded(dataPtr, timezoneObj, objv[i]);
+		}
+		Tcl_SetObjResult(interp, timezoneObj);
+	    } else if (i + 1 >= objc && dataPtr->lastSetupTimeZone != NULL) {
+		Tcl_SetObjResult(interp, dataPtr->lastSetupTimeZone);
+	    }
+	    break;
+	case CLOCK_DEFAULT_LOCALE:
+	    if (i < objc) {
+		if (dataPtr->defaultLocale != objv[i]) {
+		    TclSetObjRef(dataPtr->defaultLocale, objv[i]);
+		    dataPtr->defaultLocaleDict = NULL;
+		}
+	    }
+	    if (i + 1 >= objc) {
+		Tcl_SetObjResult(interp, dataPtr->defaultLocale ?
+			dataPtr->defaultLocale : dataPtr->literals[LIT_C]);
+	    }
+	    break;
+	case CLOCK_CURRENT_LOCALE:
+	    if (i < objc) {
+		if (dataPtr->currentLocale != objv[i]) {
+		    TclSetObjRef(dataPtr->currentLocale, objv[i]);
+		    dataPtr->currentLocaleDict = NULL;
+		}
+	    }
+	    if (i + 1 >= objc && dataPtr->currentLocale != NULL) {
+		Tcl_SetObjResult(interp, dataPtr->currentLocale);
+	    }
+	    break;
+	case CLOCK_YEAR_CENTURY:
+	    if (i < objc) {
+		int year;
+
+		if (TclGetIntFromObj(interp, objv[i], &year) != TCL_OK) {
+		    return TCL_ERROR;
+		}
+		dataPtr->currentYearCentury = year;
+		if (i + 1 >= objc) {
+		    Tcl_SetObjResult(interp, objv[i]);
+		}
+		continue;
+	    }
+	    if (i + 1 >= objc) {
+		Tcl_SetObjResult(interp,
+			Tcl_NewWideIntObj(dataPtr->currentYearCentury));
+	    }
+	    break;
+	case CLOCK_CENTURY_SWITCH:
+	    if (i < objc) {
+		int year;
+
+		if (TclGetIntFromObj(interp, objv[i], &year) != TCL_OK) {
+		    return TCL_ERROR;
+		}
+		dataPtr->yearOfCenturySwitch = year;
+		Tcl_SetObjResult(interp, objv[i]);
+		continue;
+	    }
+	    if (i + 1 >= objc) {
+		Tcl_SetObjResult(interp,
+			Tcl_NewWideIntObj(dataPtr->yearOfCenturySwitch));
+	    }
+	    break;
+	case CLOCK_MIN_YEAR:
+	    if (i < objc) {
+		int year;
+
+		if (TclGetIntFromObj(interp, objv[i], &year) != TCL_OK) {
+		    return TCL_ERROR;
+		}
+		dataPtr->validMinYear = year;
+		Tcl_SetObjResult(interp, objv[i]);
+		continue;
+	    }
+	    if (i + 1 >= objc) {
+		Tcl_SetObjResult(interp,
+			Tcl_NewWideIntObj(dataPtr->validMinYear));
+	    }
+	    break;
+	case CLOCK_MAX_YEAR:
+	    if (i < objc) {
+		int year;
+
+		if (TclGetIntFromObj(interp, objv[i], &year) != TCL_OK) {
+		    return TCL_ERROR;
+		}
+		dataPtr->validMaxYear = year;
+		Tcl_SetObjResult(interp, objv[i]);
+		continue;
+	    }
+	    if (i + 1 >= objc) {
+		Tcl_SetObjResult(interp,
+			Tcl_NewWideIntObj(dataPtr->validMaxYear));
+	    }
+	    break;
+	case CLOCK_MAX_JDN:
+	    if (i < objc) {
+		double jd;
+
+		if (Tcl_GetDoubleFromObj(interp, objv[i], &jd) != TCL_OK) {
+		    return TCL_ERROR;
+		}
+		dataPtr->maxJDN = jd;
+		Tcl_SetObjResult(interp, objv[i]);
+		continue;
+	    }
+	    if (i + 1 >= objc) {
+		Tcl_SetObjResult(interp, Tcl_NewDoubleObj(dataPtr->maxJDN));
+	    }
+	    break;
+	case CLOCK_VALIDATE:
+	    if (i < objc) {
+		int val;
+
+		if (Tcl_GetBooleanFromObj(interp, objv[i], &val) != TCL_OK) {
+		    return TCL_ERROR;
+		}
+		if (val) {
+		    dataPtr->defFlags |= CLF_VALIDATE;
+		} else {
+		    dataPtr->defFlags &= ~CLF_VALIDATE;
+		}
+	    }
+	    if (i + 1 >= objc) {
+		Tcl_SetObjResult(interp,
+			Tcl_NewBooleanObj(dataPtr->defFlags & CLF_VALIDATE));
+	    }
+	    break;
+	case CLOCK_CLEAR_CACHE:
+	    ClockConfigureClear(dataPtr);
+	    break;
+	case CLOCK_INIT_COMPLETE: {
+	    /*
+	     * Init completed.
+	     * Compile clock ensemble (performance purposes).
+	     */
+	    Tcl_Command token = Tcl_FindCommand(interp, "::clock",
+		    NULL, TCL_GLOBAL_ONLY);
+	    if (!token) {
+		return TCL_ERROR;
+	    }
+	    int ensFlags = 0;
+	    if (Tcl_GetEnsembleFlags(interp, token, &ensFlags) != TCL_OK) {
+		return TCL_ERROR;
+	    }
+	    ensFlags |= ENSEMBLE_COMPILE;
+	    if (Tcl_SetEnsembleFlags(interp, token, ensFlags) != TCL_OK) {
+		return TCL_ERROR;
+	    }
+	    break;
+	}
+	}
+    }
+
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ClockGetTZData --
+ *
+ *	Retrieves tzdata table for given normalized timezone.
+ *
+ * Results:
+ *	Returns a tcl object with tzdata.
+ *
+ * Side effects:
+ *	The tzdata can be cached in ClockClientData structure.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static inline Tcl_Obj *
+ClockGetTZData(
+    ClockClientData *dataPtr,	/* Opaque pointer to literal pool, etc. */
+    Tcl_Interp *interp,		/* Tcl interpreter */
+    Tcl_Obj *timezoneObj)	/* Name of the timezone */
+{
+    Tcl_Obj *ret, **out = NULL;
+
+    /* if cached (if already setup this one) */
+    if (timezoneObj == dataPtr->lastSetupTimeZone
+	    || timezoneObj == dataPtr->lastSetupTimeZoneUnnorm) {
+	if (dataPtr->lastSetupTZData != NULL) {
+	    return dataPtr->lastSetupTZData;
+	}
+	out = &dataPtr->lastSetupTZData;
+    }
+    /* differentiate GMT and system zones, because used often */
+    /* simple caching, because almost used the tz-data of last timezone
+     */
+    if (timezoneObj == dataPtr->systemTimeZone) {
+	if (dataPtr->systemSetupTZData != NULL) {
+	    return dataPtr->systemSetupTZData;
+	}
+	out = &dataPtr->systemSetupTZData;
+    } else if (timezoneObj == dataPtr->literals[LIT_GMT]
+	    || timezoneObj == dataPtr->gmtSetupTimeZoneUnnorm) {
+	if (dataPtr->gmtSetupTZData != NULL) {
+	    return dataPtr->gmtSetupTZData;
+	}
+	out = &dataPtr->gmtSetupTZData;
+    } else if (timezoneObj == dataPtr->prevSetupTimeZone
+	    || timezoneObj == dataPtr->prevSetupTimeZoneUnnorm) {
+	if (dataPtr->prevSetupTZData != NULL) {
+	    return dataPtr->prevSetupTZData;
+	}
+	out = &dataPtr->prevSetupTZData;
+    }
+
+    ret = Tcl_ObjGetVar2(interp, dataPtr->literals[LIT_TZDATA],
+	    timezoneObj, TCL_LEAVE_ERR_MSG);
+
+    /* cache using corresponding slot and as last used */
+    if (out != NULL) {
+	TclSetObjRef(*out, ret);
+    } else if (dataPtr->lastSetupTimeZone != timezoneObj) {
+	SavePrevTimezoneObj(dataPtr);
+	TclSetObjRef(dataPtr->lastSetupTimeZone, timezoneObj);
+	TclUnsetObjRef(dataPtr->lastSetupTimeZoneUnnorm);
+	TclSetObjRef(dataPtr->lastSetupTZData, ret);
+    }
+    return ret;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ClockGetSystemTimeZone --
+ *
+ *	Returns system (current) timezone.
+ *
+ *	If system zone not yet cached, it executes ::tcl::clock::GetSystemTimeZone
+ *	in given interpreter and caches its result.
+ *
+ * Results:
+ *	Returns normalized timezone object.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static Tcl_Obj *
+ClockGetSystemTimeZone(
+    ClockClientData *dataPtr,	/* Pointer to literal pool, etc. */
+    Tcl_Interp *interp)		/* Tcl interpreter */
+{
+    /* if known (cached and same epoch) - return now */
+    if (dataPtr->systemTimeZone != NULL
+	    && dataPtr->lastTZEpoch == TzsetIfNecessary()) {
+	return dataPtr->systemTimeZone;
+    }
+
+    TclUnsetObjRef(dataPtr->systemTimeZone);
+    TclUnsetObjRef(dataPtr->systemSetupTZData);
+
+    if (Tcl_EvalObjv(interp, 1, &dataPtr->literals[LIT_GETSYSTEMTIMEZONE], 0) != TCL_OK) {
+	return NULL;
+    }
+    if (dataPtr->systemTimeZone == NULL) {
+	TclSetObjRef(dataPtr->systemTimeZone, Tcl_GetObjResult(interp));
+    }
+    Tcl_ResetResult(interp);
+    return dataPtr->systemTimeZone;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ClockSetupTimeZone --
+ *
+ *	Sets up the timezone. Loads tzdata, etc.
+ *
+ * Results:
+ *	Returns normalized timezone object.
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tcl_Obj *
+ClockSetupTimeZone(
+    ClockClientData *dataPtr,	/* Pointer to literal pool, etc. */
+    Tcl_Interp *interp,		/* Tcl interpreter */
+    Tcl_Obj *timezoneObj)
+{
+    int loaded;
+    Tcl_Obj *callargs[2];
+
+    /* if cached (if already setup this one) */
+    if (timezoneObj == dataPtr->literals[LIT_GMT]
+	    && dataPtr->gmtSetupTZData != NULL) {
+	return timezoneObj;
+    }
+    if ((timezoneObj == dataPtr->lastSetupTimeZone
+	    || timezoneObj == dataPtr->lastSetupTimeZoneUnnorm)
+	    && dataPtr->lastSetupTimeZone != NULL) {
+	return dataPtr->lastSetupTimeZone;
+    }
+    if ((timezoneObj == dataPtr->prevSetupTimeZone
+	    || timezoneObj == dataPtr->prevSetupTimeZoneUnnorm)
+	    && dataPtr->prevSetupTimeZone != NULL) {
+	return dataPtr->prevSetupTimeZone;
+    }
+
+    /* differentiate normalized (last, GMT and system) zones, because used often and already set */
+    callargs[1] = NormTimezoneObj(dataPtr, timezoneObj, &loaded);
+    /* if loaded (setup already called for this TZ) */
+    if (loaded) {
+	return callargs[1];
+    }
+
+    /* before setup just take a look in TZData variable */
+    if (Tcl_ObjGetVar2(interp, dataPtr->literals[LIT_TZDATA], timezoneObj, 0)) {
+	/* put it to last slot and return normalized */
+	TimezoneLoaded(dataPtr, callargs[1], timezoneObj);
+	return callargs[1];
+    }
+    /* setup now */
+    callargs[0] = dataPtr->literals[LIT_SETUPTIMEZONE];
+    if (Tcl_EvalObjv(interp, 2, callargs, 0) == TCL_OK) {
+	/* save unnormalized last used */
+	TclSetObjRef(dataPtr->lastSetupTimeZoneUnnorm, timezoneObj);
+	return callargs[1];
+    }
+    return NULL;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ClockFormatNumericTimeZone --
+ *
+ *	Formats a time zone as +hhmmss
+ *
+ * Parameters:
+ *	z - Time zone in seconds east of Greenwich
+ *
+ * Results:
+ *	Returns the time zone object (formatted in a numeric form)
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tcl_Obj *
+ClockFormatNumericTimeZone(
+    int z)
+{
+    char buf[12 + 1], *p;
+
+    if (z < 0) {
+	z = -z;
+	*buf = '-';
+    } else {
+	*buf = '+';
+    }
+    TclItoAw(buf + 1, z / 3600, '0', 2);
+    z %= 3600;
+    p = TclItoAw(buf + 3, z / 60, '0', 2);
+    z %= 60;
+    if (z != 0) {
+	p = TclItoAw(buf + 5, z, '0', 2);
+    }
+    return Tcl_NewStringObj(buf, p - buf);
 }
 
 /*
@@ -297,11 +1380,11 @@ TclClockInit(
  *	is available.
  *
  * Usage:
- *	::tcl::clock::ConvertUTCToLocal dictionary tzdata changeover
+ *	::tcl::clock::ConvertUTCToLocal dictionary timezone changeover
  *
  * Parameters:
  *	dict - Dictionary containing a 'localSeconds' entry.
- *	tzdata - Time zone data
+ *	timezone - Time zone
  *	changeover - Julian Day of the adoption of the Gregorian calendar.
  *
  * Results:
@@ -317,42 +1400,41 @@ TclClockInit(
 
 static int
 ClockConvertlocaltoutcObjCmd(
-    ClientData clientData,	/* Client data  */
-    Tcl_Interp* interp,		/* Tcl interpreter */
+    void *clientData,		/* Literal table */
+    Tcl_Interp *interp,		/* Tcl interpreter */
     int objc,			/* Parameter count */
     Tcl_Obj *const *objv)	/* Parameter vector */
 {
-    ClockClientData* data = (ClockClientData*) clientData;
-    Tcl_Obj* const * literals = data->literals;
-    Tcl_Obj* secondsObj;
-    Tcl_Obj* dict;
+    ClockClientData *dataPtr = (ClockClientData *)clientData;
+    Tcl_Obj *secondsObj;
+    Tcl_Obj *dict;
     int changeover;
     TclDateFields fields;
     int created = 0;
     int status;
 
+    fields.tzName = NULL;
     /*
      * Check params and convert time.
      */
 
     if (objc != 4) {
-	Tcl_WrongNumArgs(interp, 1, objv, "dict tzdata changeover");
+	Tcl_WrongNumArgs(interp, 1, objv, "dict timezone changeover");
 	return TCL_ERROR;
     }
     dict = objv[1];
-    if (Tcl_DictObjGet(interp, dict, literals[LIT_LOCALSECONDS],
-		       &secondsObj)!= TCL_OK) {
+    if (Tcl_DictObjGet(interp, dict, dataPtr->literals[LIT_LOCALSECONDS],
+	    &secondsObj)!= TCL_OK) {
 	return TCL_ERROR;
     }
     if (secondsObj == NULL) {
 	Tcl_SetObjResult(interp, Tcl_NewStringObj("key \"localseconds\" not "
-						  "found in dictionary", -1));
+		"found in dictionary", TCL_AUTO_LENGTH));
 	return TCL_ERROR;
     }
-    if ((Tcl_GetWideIntFromObj(interp, secondsObj,
-			      &(fields.localSeconds)) != TCL_OK)
-	|| (TclGetIntFromObj(interp, objv[3], &changeover) != TCL_OK)
-	|| ConvertLocalToUTC(interp, &fields, objv[2], changeover)) {
+    if ((TclGetWideIntFromObj(interp, secondsObj, &fields.localSeconds) != TCL_OK)
+	    || (TclGetIntFromObj(interp, objv[3], &changeover) != TCL_OK)
+	    || ConvertLocalToUTC(dataPtr, interp, &fields, objv[2], changeover)) {
 	return TCL_ERROR;
     }
 
@@ -366,7 +1448,7 @@ ClockConvertlocaltoutcObjCmd(
 	created = 1;
 	Tcl_IncrRefCount(dict);
     }
-    status = Tcl_DictObjPut(interp, dict, literals[LIT_SECONDS],
+    status = Tcl_DictObjPut(interp, dict, dataPtr->literals[LIT_SECONDS],
 	    Tcl_NewWideIntObj(fields.seconds));
     if (status == TCL_OK) {
 	Tcl_SetObjResult(interp, dict);
@@ -386,20 +1468,19 @@ ClockConvertlocaltoutcObjCmd(
  *	formatting a date, and populates a dictionary with them.
  *
  * Usage:
- *	::tcl::clock::GetDateFields seconds tzdata changeover
+ *	::tcl::clock::GetDateFields seconds timezone changeover
  *
  * Parameters:
  *	seconds - Time expressed in seconds from the Posix epoch.
- *	tzdata - Time zone data of the time zone in which time is to
- *                 be expressed.
+ *	timezone - Time zone in which time is to be expressed.
  *	changeover - Julian Day Number at which the current locale adopted
  *		     the Gregorian calendar
  *
  * Results:
  *	Returns a dictonary populated with the fields:
  *		seconds - Seconds from the Posix epoch
- *		localSeconds - Nominal seconds from the Posix epoch in
- *			       the local time zone.
+ *		localSeconds - Nominal seconds from the Posix epoch in the
+ *			       local time zone.
  *		tzOffset - Time zone offset in seconds east of Greenwich
  *		tzName - Time zone name
  *		julianDay - Julian Day Number in the local time zone
@@ -409,93 +1490,133 @@ ClockConvertlocaltoutcObjCmd(
 
 int
 ClockGetdatefieldsObjCmd(
-    ClientData clientData,	/* Opaque pointer to literal pool, etc. */
-    Tcl_Interp* interp,		/* Tcl interpreter */
+    void *clientData,		/* Opaque pointer to literal pool, etc. */
+    Tcl_Interp *interp,		/* Tcl interpreter */
     int objc,			/* Parameter count */
     Tcl_Obj *const *objv)	/* Parameter vector */
 {
     TclDateFields fields;
-    Tcl_Obj* dict;
-    ClockClientData* data = (ClockClientData*) clientData;
-    Tcl_Obj* const * literals = data->literals;
+    Tcl_Obj *dict;
+    ClockClientData *dataPtr = (ClockClientData *)clientData;
+    Tcl_Obj *const *lit = dataPtr->literals;
     int changeover;
 
+    fields.tzName = NULL;
+
     /*
      * Check params.
      */
 
     if (objc != 4) {
-	Tcl_WrongNumArgs(interp, 1, objv, "seconds tzdata changeover");
+	Tcl_WrongNumArgs(interp, 1, objv, "seconds timezone changeover");
 	return TCL_ERROR;
     }
-    if (Tcl_GetWideIntFromObj(interp, objv[1], &(fields.seconds)) != TCL_OK
+    if (TclGetWideIntFromObj(interp, objv[1], &fields.seconds) != TCL_OK
 	    || TclGetIntFromObj(interp, objv[3], &changeover) != TCL_OK) {
 	return TCL_ERROR;
     }
 
-    /* 
-     * fields.seconds could be an unsigned number that overflowed.  Make
-     * sure that it isn't.
+    /*
+     * fields.seconds could be an unsigned number that overflowed. Make sure
+     * that it isn't.
      */
 
-    if (objv[1]->typePtr == &tclBignumType) {
-	Tcl_SetObjResult(interp, literals[LIT_INTEGER_VALUE_TOO_LARGE]);
+    if (TclHasInternalRep(objv[1], &tclBignumType)) {
+	Tcl_SetObjResult(interp, lit[LIT_INTEGER_VALUE_TOO_LARGE]);
+	return TCL_ERROR;
+    }
+
+    /* Extract fields */
+
+    if (ClockGetDateFields(dataPtr, interp, &fields, objv[2],
+	    changeover) != TCL_OK) {
 	return TCL_ERROR;
     }
 
+    /* Make dict of fields */
+
+    dict = Tcl_NewDictObj();
+    Tcl_DictObjPut(NULL, dict, lit[LIT_LOCALSECONDS],
+	    Tcl_NewWideIntObj(fields.localSeconds));
+    Tcl_DictObjPut(NULL, dict, lit[LIT_SECONDS],
+	    Tcl_NewWideIntObj(fields.seconds));
+    Tcl_DictObjPut(NULL, dict, lit[LIT_TZNAME], fields.tzName);
+    Tcl_DecrRefCount(fields.tzName);
+    Tcl_DictObjPut(NULL, dict, lit[LIT_TZOFFSET],
+	    Tcl_NewWideIntObj(fields.tzOffset));
+    Tcl_DictObjPut(NULL, dict, lit[LIT_JULIANDAY],
+	    Tcl_NewWideIntObj(fields.julianDay));
+    Tcl_DictObjPut(NULL, dict, lit[LIT_GREGORIAN],
+	    Tcl_NewWideIntObj(fields.gregorian));
+    Tcl_DictObjPut(NULL, dict, lit[LIT_ERA],
+	    lit[fields.isBce ? LIT_BCE : LIT_CE]);
+    Tcl_DictObjPut(NULL, dict, lit[LIT_YEAR],
+	    Tcl_NewWideIntObj(fields.year));
+    Tcl_DictObjPut(NULL, dict, lit[LIT_DAYOFYEAR],
+	    Tcl_NewWideIntObj(fields.dayOfYear));
+    Tcl_DictObjPut(NULL, dict, lit[LIT_MONTH],
+	    Tcl_NewWideIntObj(fields.month));
+    Tcl_DictObjPut(NULL, dict, lit[LIT_DAYOFMONTH],
+	    Tcl_NewWideIntObj(fields.dayOfMonth));
+    Tcl_DictObjPut(NULL, dict, lit[LIT_ISO8601YEAR],
+	    Tcl_NewWideIntObj(fields.iso8601Year));
+    Tcl_DictObjPut(NULL, dict, lit[LIT_ISO8601WEEK],
+	    Tcl_NewWideIntObj(fields.iso8601Week));
+    Tcl_DictObjPut(NULL, dict, lit[LIT_DAYOFWEEK],
+	    Tcl_NewWideIntObj(fields.dayOfWeek));
+    Tcl_SetObjResult(interp, dict);
+
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ClockGetDateFields --
+ *
+ *	Converts given UTC time (seconds in a TclDateFields structure)
+ *	to local time and determines the values that clock routines will
+ *	use in scanning or formatting a date.
+ *
+ * Results:
+ *	Date-time values are stored in structure "fields".
+ *	Returns a standard Tcl result.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+ClockGetDateFields(
+    ClockClientData *dataPtr,	/* Literal pool, etc. */
+    Tcl_Interp *interp,		/* Tcl interpreter */
+    TclDateFields *fields,	/* Pointer to result fields, where
+				 * fields->seconds contains date to extract */
+    Tcl_Obj *timezoneObj,	/* Time zone object or NULL for gmt */
+    int changeover)		/* Julian Day Number */
+{
     /*
      * Convert UTC time to local.
      */
 
-    if (ConvertUTCToLocal(interp, &fields, objv[2], changeover) != TCL_OK) {
+    if (ConvertUTCToLocal(dataPtr, interp, fields, timezoneObj,
+	    changeover) != TCL_OK) {
 	return TCL_ERROR;
     }
 
     /*
-     * Extract Julian day.
+     * Extract Julian day and seconds of the day.
      */
 
-    fields.julianDay = (int) ((fields.localSeconds + JULIAN_SEC_POSIX_EPOCH)
-	    / SECONDS_PER_DAY);
+    ClockExtractJDAndSODFromSeconds(fields->julianDay, fields->secondOfDay,
+	    fields->localSeconds);
 
     /*
      * Convert to Julian or Gregorian calendar.
      */
 
-    GetGregorianEraYearDay(&fields, changeover);
-    GetMonthDay(&fields);
-    GetYearWeekDay(&fields, changeover);
-
-    dict = Tcl_NewDictObj();
-    Tcl_DictObjPut(NULL, dict, literals[LIT_LOCALSECONDS],
-	    Tcl_NewWideIntObj(fields.localSeconds));
-    Tcl_DictObjPut(NULL, dict, literals[LIT_SECONDS],
-	    Tcl_NewWideIntObj(fields.seconds));
-    Tcl_DictObjPut(NULL, dict, literals[LIT_TZNAME], fields.tzName);
-    Tcl_DecrRefCount(fields.tzName);
-    Tcl_DictObjPut(NULL, dict, literals[LIT_TZOFFSET],
-	    Tcl_NewIntObj(fields.tzOffset));
-    Tcl_DictObjPut(NULL, dict, literals[LIT_JULIANDAY],
-	    Tcl_NewIntObj(fields.julianDay));
-    Tcl_DictObjPut(NULL, dict, literals[LIT_GREGORIAN],
-	    Tcl_NewIntObj(fields.gregorian));
-    Tcl_DictObjPut(NULL, dict, literals[LIT_ERA],
-	    literals[fields.era ? LIT_BCE : LIT_CE]);
-    Tcl_DictObjPut(NULL, dict, literals[LIT_YEAR],
-	    Tcl_NewIntObj(fields.year));
-    Tcl_DictObjPut(NULL, dict, literals[LIT_DAYOFYEAR],
-	    Tcl_NewIntObj(fields.dayOfYear));
-    Tcl_DictObjPut(NULL, dict, literals[LIT_MONTH],
-	    Tcl_NewIntObj(fields.month));
-    Tcl_DictObjPut(NULL, dict, literals[LIT_DAYOFMONTH],
-	    Tcl_NewIntObj(fields.dayOfMonth));
-    Tcl_DictObjPut(NULL, dict, literals[LIT_ISO8601YEAR],
-	    Tcl_NewIntObj(fields.iso8601Year));
-    Tcl_DictObjPut(NULL, dict, literals[LIT_ISO8601WEEK],
-	    Tcl_NewIntObj(fields.iso8601Week));
-    Tcl_DictObjPut(NULL, dict, literals[LIT_DAYOFWEEK],
-	    Tcl_NewIntObj(fields.dayOfWeek));
-    Tcl_SetObjResult(interp, dict);
+    GetGregorianEraYearDay(fields, changeover);
+    GetMonthDay(fields);
+    GetYearWeekDay(fields, changeover);
 
     return TCL_OK;
 }
@@ -522,21 +1643,62 @@ ClockGetdatefieldsObjCmd(
  */
 
 static int
-ClockGetjuliandayfromerayearmonthdayObjCmd (
-    ClientData clientData,	/* Opaque pointer to literal pool, etc. */
-    Tcl_Interp* interp,		/* Tcl interpreter */
+FetchEraField(
+    Tcl_Interp *interp,
+    Tcl_Obj *dict,
+    Tcl_Obj *key,
+    int *storePtr)
+{
+    Tcl_Obj *value = NULL;
+
+    if (Tcl_DictObjGet(interp, dict, key, &value) != TCL_OK) {
+	return TCL_ERROR;
+    }
+    if (value == NULL) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"expected key(s) not found in dictionary", TCL_AUTO_LENGTH));
+	return TCL_ERROR;
+    }
+    return Tcl_GetIndexFromObj(interp, value, eras, "era", TCL_EXACT, storePtr);
+}
+
+static int
+FetchIntField(
+    Tcl_Interp *interp,
+    Tcl_Obj *dict,
+    Tcl_Obj *key,
+    int *storePtr)
+{
+    Tcl_Obj *value = NULL;
+
+    if (Tcl_DictObjGet(interp, dict, key, &value) != TCL_OK) {
+	return TCL_ERROR;
+    }
+    if (value == NULL) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"expected key(s) not found in dictionary", TCL_AUTO_LENGTH));
+	return TCL_ERROR;
+    }
+    return TclGetIntFromObj(interp, value, storePtr);
+}
+
+static int
+ClockGetjuliandayfromerayearmonthdayObjCmd(
+    void *clientData,		/* Opaque pointer to literal pool, etc. */
+    Tcl_Interp *interp,		/* Tcl interpreter */
     int objc,			/* Parameter count */
     Tcl_Obj *const *objv)	/* Parameter vector */
 {
     TclDateFields fields;
-    Tcl_Obj* dict;
-    ClockClientData* data = (ClockClientData*) clientData;
-    Tcl_Obj* const * literals = data->literals;
-    Tcl_Obj* fieldPtr;
+    Tcl_Obj *dict;
+    ClockClientData *data = (ClockClientData *)clientData;
+    Tcl_Obj *const *lit = data->literals;
     int changeover;
     int copied = 0;
     int status;
-    int era = 0;
+    int isBce = 0;
+
+    fields.tzName = NULL;
 
     /*
      * Check params.
@@ -547,27 +1709,17 @@ ClockGetjuliandayfromerayearmonthdayObjCmd (
 	return TCL_ERROR;
     }
     dict = objv[1];
-    if (Tcl_DictObjGet(interp, dict, literals[LIT_ERA], &fieldPtr) != TCL_OK
-		 || fieldPtr == NULL
-	    || Tcl_GetIndexFromObj(interp, fieldPtr, eras, "era", TCL_EXACT,
-		&era) != TCL_OK
-	    || Tcl_DictObjGet(interp, dict, literals[LIT_YEAR], &fieldPtr) != TCL_OK
-		 || fieldPtr == NULL
-	    || TclGetIntFromObj(interp, fieldPtr, &(fields.year)) != TCL_OK
-	    || Tcl_DictObjGet(interp, dict, literals[LIT_MONTH],	&fieldPtr) != TCL_OK
-		 || fieldPtr == NULL
-	    || TclGetIntFromObj(interp, fieldPtr, &(fields.month)) != TCL_OK
-	    || Tcl_DictObjGet(interp, dict, literals[LIT_DAYOFMONTH], &fieldPtr) != TCL_OK
-		 || fieldPtr == NULL
-	    || TclGetIntFromObj(interp, fieldPtr,
-		&(fields.dayOfMonth)) != TCL_OK
+    if (FetchEraField(interp, dict, lit[LIT_ERA], &isBce) != TCL_OK
+	    || FetchIntField(interp, dict, lit[LIT_YEAR], &fields.year)
+		!= TCL_OK
+	    || FetchIntField(interp, dict, lit[LIT_MONTH], &fields.month)
+		!= TCL_OK
+	    || FetchIntField(interp, dict, lit[LIT_DAYOFMONTH],
+		&fields.dayOfMonth) != TCL_OK
 	    || TclGetIntFromObj(interp, objv[2], &changeover) != TCL_OK) {
-	if (fieldPtr == NULL) {
-	    Tcl_SetObjResult(interp, Tcl_NewStringObj("expected key(s) not found in dictionary", -1));
-	}
 	return TCL_ERROR;
     }
-    fields.era = era;
+    fields.isBce = isBce;
 
     /*
      * Get Julian day.
@@ -584,8 +1736,8 @@ ClockGetjuliandayfromerayearmonthdayObjCmd (
 	Tcl_IncrRefCount(dict);
 	copied = 1;
     }
-    status = Tcl_DictObjPut(interp, dict, literals[LIT_JULIANDAY],
-	    Tcl_NewIntObj(fields.julianDay));
+    status = Tcl_DictObjPut(interp, dict, lit[LIT_JULIANDAY],
+	    Tcl_NewWideIntObj(fields.julianDay));
     if (status == TCL_OK) {
 	Tcl_SetObjResult(interp, dict);
     }
@@ -617,21 +1769,22 @@ ClockGetjuliandayfromerayearmonthdayObjCmd (
  */
 
 static int
-ClockGetjuliandayfromerayearweekdayObjCmd (
-    ClientData clientData,	/* Opaque pointer to literal pool, etc. */
-    Tcl_Interp* interp,		/* Tcl interpreter */
+ClockGetjuliandayfromerayearweekdayObjCmd(
+    void *clientData,		/* Opaque pointer to literal pool, etc. */
+    Tcl_Interp *interp,		/* Tcl interpreter */
     int objc,			/* Parameter count */
     Tcl_Obj *const *objv)	/* Parameter vector */
 {
     TclDateFields fields;
-    Tcl_Obj* dict;
-    ClockClientData* data = (ClockClientData*) clientData;
-    Tcl_Obj* const * literals = data->literals;
-    Tcl_Obj* fieldPtr;
+    Tcl_Obj *dict;
+    ClockClientData *data = (ClockClientData *)clientData;
+    Tcl_Obj *const *lit = data->literals;
     int changeover;
     int copied = 0;
     int status;
-    int era = 0;
+    int isBce = 0;
+
+    fields.tzName = NULL;
 
     /*
      * Check params.
@@ -642,26 +1795,17 @@ ClockGetjuliandayfromerayearweekdayObjCmd (
 	return TCL_ERROR;
     }
     dict = objv[1];
-    if (Tcl_DictObjGet(interp, dict, literals[LIT_ERA], &fieldPtr) != TCL_OK
-		 || fieldPtr == NULL
-	    || Tcl_GetIndexFromObj(interp, fieldPtr, eras, "era", TCL_EXACT,
-		&era) != TCL_OK
-	    || Tcl_DictObjGet(interp, dict, literals[LIT_ISO8601YEAR], &fieldPtr) != TCL_OK
-		 || fieldPtr == NULL
-	    || TclGetIntFromObj(interp, fieldPtr, &(fields.iso8601Year)) != TCL_OK
-	    || Tcl_DictObjGet(interp, dict, literals[LIT_ISO8601WEEK], &fieldPtr) != TCL_OK
-		 || fieldPtr == NULL
-	    || TclGetIntFromObj(interp, fieldPtr, &(fields.iso8601Week)) != TCL_OK
-	    || Tcl_DictObjGet(interp, dict, literals[LIT_DAYOFWEEK], &fieldPtr) != TCL_OK
-		 || fieldPtr == NULL
-	    || TclGetIntFromObj(interp, fieldPtr, &(fields.dayOfWeek)) != TCL_OK
+    if (FetchEraField(interp, dict, lit[LIT_ERA], &isBce) != TCL_OK
+	    || FetchIntField(interp, dict, lit[LIT_ISO8601YEAR],
+		&fields.iso8601Year) != TCL_OK
+	    || FetchIntField(interp, dict, lit[LIT_ISO8601WEEK],
+		&fields.iso8601Week) != TCL_OK
+	    || FetchIntField(interp, dict, lit[LIT_DAYOFWEEK],
+		&fields.dayOfWeek) != TCL_OK
 	    || TclGetIntFromObj(interp, objv[2], &changeover) != TCL_OK) {
-	if (fieldPtr == NULL) {
-	    Tcl_SetObjResult(interp, Tcl_NewStringObj("expected key(s) not found in dictionary", -1));
-	}
 	return TCL_ERROR;
     }
-    fields.era = era;
+    fields.isBce = isBce;
 
     /*
      * Get Julian day.
@@ -678,8 +1822,8 @@ ClockGetjuliandayfromerayearweekdayObjCmd (
 	Tcl_IncrRefCount(dict);
 	copied = 1;
     }
-    status = Tcl_DictObjPut(interp, dict, literals[LIT_JULIANDAY],
-	    Tcl_NewIntObj(fields.julianDay));
+    status = Tcl_DictObjPut(interp, dict, lit[LIT_JULIANDAY],
+	    Tcl_NewWideIntObj(fields.julianDay));
     if (status == TCL_OK) {
 	Tcl_SetObjResult(interp, dict);
     }
@@ -709,18 +1853,61 @@ ClockGetjuliandayfromerayearweekdayObjCmd (
 
 static int
 ConvertLocalToUTC(
-    Tcl_Interp* interp,		/* Tcl interpreter */
-    TclDateFields* fields,	/* Fields of the time */
-    Tcl_Obj* tzdata,		/* Time zone data */
+    ClockClientData *dataPtr,	/* Literal pool, etc. */
+    Tcl_Interp *interp,		/* Tcl interpreter */
+    TclDateFields *fields,	/* Fields of the time */
+    Tcl_Obj *timezoneObj,	/* Time zone */
     int changeover)		/* Julian Day of the Gregorian transition */
 {
-    int rowc;			/* Number of rows in tzdata */
-    Tcl_Obj** rowv;		/* Pointers to the rows */
+    Tcl_Obj *tzdata;		/* Time zone data */
+    Tcl_Size rowc;		/* Number of rows in tzdata */
+    Tcl_Obj **rowv;		/* Pointers to the rows */
+    Tcl_WideInt seconds;
+    ClockLastTZOffs * ltzoc = NULL;
+
+    /* fast phase-out for shared GMT-object (don't need to convert UTC 2 UTC) */
+    if (timezoneObj == dataPtr->literals[LIT_GMT]) {
+	fields->seconds = fields->localSeconds;
+	fields->tzOffset = 0;
+	return TCL_OK;
+    }
+
+    /*
+     * Check cacheable conversion could be used
+     * (last-period UTC2Local cache within the same TZ and seconds)
+     */
+    for (rowc = 0; rowc < 2; rowc++) {
+	ltzoc = &dataPtr->lastTZOffsCache[rowc];
+	if (timezoneObj != ltzoc->timezoneObj || changeover != ltzoc->changeover) {
+	    ltzoc = NULL;
+	    continue;
+	}
+	seconds = fields->localSeconds - ltzoc->tzOffset;
+	if (seconds >= ltzoc->rangesVal[0]
+		&& seconds < ltzoc->rangesVal[1]) {
+	    /* the same time zone and offset (UTC time inside the last minute) */
+	    fields->tzOffset = ltzoc->tzOffset;
+	    fields->seconds = seconds;
+	    return TCL_OK;
+	}
+	/* in the DST-hole (because of the check above) - correct localSeconds */
+	if (fields->localSeconds == ltzoc->localSeconds) {
+	    /* the same time zone and offset (but we'll shift local-time) */
+	    fields->tzOffset = ltzoc->tzOffset;
+	    fields->seconds = seconds;
+	    goto dstHole;
+	}
+    }
 
     /*
      * Unpack the tz data.
      */
 
+    tzdata = ClockGetTZData(dataPtr, interp, timezoneObj);
+    if (tzdata == NULL) {
+	return TCL_ERROR;
+    }
+
     if (TclListObjGetElements(interp, tzdata, &rowc, &rowv) != TCL_OK) {
 	return TCL_ERROR;
     }
@@ -731,10 +1918,56 @@ ConvertLocalToUTC(
      */
 
     if (rowc == 0) {
-	return ConvertLocalToUTCUsingC(interp, fields, changeover);
+	if (ConvertLocalToUTCUsingC(interp, fields, changeover) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+
+	/* we cannot cache (ranges unknown yet) - todo: check later the DST-hole here */
+	return TCL_OK;
     } else {
-	return ConvertLocalToUTCUsingTable(interp, fields, rowc, rowv);
+	Tcl_WideInt rangesVal[2];
+
+	if (ConvertLocalToUTCUsingTable(interp, fields, rowc, rowv,
+		rangesVal) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+
+	seconds = fields->seconds;
+
+	/* Cache the last conversion */
+	if (ltzoc != NULL) { /* slot was found above */
+	    /* timezoneObj and changeover are the same */
+	    TclSetObjRef(ltzoc->tzName, fields->tzName); /* may be NULL */
+	} else {
+	    /* no TZ in cache - just move second slot down and use the first one */
+	    ltzoc = &dataPtr->lastTZOffsCache[0];
+	    TclUnsetObjRef(dataPtr->lastTZOffsCache[1].timezoneObj);
+	    TclUnsetObjRef(dataPtr->lastTZOffsCache[1].tzName);
+	    memcpy(&dataPtr->lastTZOffsCache[1], ltzoc, sizeof(*ltzoc));
+	    TclInitObjRef(ltzoc->timezoneObj, timezoneObj);
+	    ltzoc->changeover = changeover;
+	    TclInitObjRef(ltzoc->tzName, fields->tzName); /* may be NULL */
+	}
+	ltzoc->localSeconds = fields->localSeconds;
+	ltzoc->rangesVal[0] = rangesVal[0];
+	ltzoc->rangesVal[1] = rangesVal[1];
+	ltzoc->tzOffset = fields->tzOffset;
+    }
+
+    /* check DST-hole: if retrieved seconds is out of range */
+    if (ltzoc->rangesVal[0] > seconds || seconds >= ltzoc->rangesVal[1]) {
+    dstHole:
+#if 0
+	printf("given local-time is outside the time-zone (in DST-hole): "
+		"%" TCL_LL_MODIFIER "d - offs %d => %" TCL_LL_MODIFIER "d <= %" TCL_LL_MODIFIER "d < %" TCL_LL_MODIFIER "d\n",
+		fields->localSeconds, fields->tzOffset,
+		ltzoc->rangesVal[0], seconds, ltzoc->rangesVal[1]);
+#endif
+	/* because we don't know real TZ (we're outsize), just invalidate local
+	 * time (which could be verified in ClockValidDate later) */
+	fields->localSeconds = TCL_INV_SECONDS; /* not valid seconds */
     }
+    return TCL_OK;
 }
 
 /*
@@ -757,18 +1990,21 @@ ConvertLocalToUTC(
 
 static int
 ConvertLocalToUTCUsingTable(
-    Tcl_Interp* interp,		/* Tcl interpreter */
-    TclDateFields* fields,	/* Time to convert, with 'seconds' filled in */
+    Tcl_Interp *interp,		/* Tcl interpreter */
+    TclDateFields *fields,	/* Time to convert, with 'seconds' filled in */
     int rowc,			/* Number of points at which time changes */
-    Tcl_Obj *const rowv[])	/* Points at which time changes */
+    Tcl_Obj *const rowv[],	/* Points at which time changes */
+    Tcl_WideInt *rangesVal)	/* Return bounds for time period */
 {
-    Tcl_Obj* row;
-    int cellc;
-    Tcl_Obj** cellv;
-    int have[8];
+    Tcl_Obj *row;
+    Tcl_Size cellc;
+    Tcl_Obj **cellv;
+    struct {
+	Tcl_Obj *tzName;
+	int tzOffset;
+    } have[8];
     int nHave = 0;
-    int i;
-    int found;
+    Tcl_Size i;
 
     /*
      * Perform an initial lookup assuming that local == UTC, and locate the
@@ -780,36 +2016,36 @@ ConvertLocalToUTCUsingTable(
      * Saving Time transition.
      */
 
-    found = 0;
     fields->tzOffset = 0;
     fields->seconds = fields->localSeconds;
-    while (!found) {
-	row = LookupLastTransition(interp, fields->seconds, rowc, rowv);
+    while (1) {
+	row = LookupLastTransition(interp, fields->seconds, rowc, rowv,
+		rangesVal);
 	if ((row == NULL)
 		|| TclListObjGetElements(interp, row, &cellc,
 		    &cellv) != TCL_OK
 		|| TclGetIntFromObj(interp, cellv[1],
-		    &(fields->tzOffset)) != TCL_OK) {
+		    &fields->tzOffset) != TCL_OK) {
 	    return TCL_ERROR;
 	}
-	found = 0;
-	for (i = 0; !found && i < nHave; ++i) {
-	    if (have[i] == fields->tzOffset) {
-		found = 1;
-		break;
+	for (i = 0; i < nHave; ++i) {
+	    if (have[i].tzOffset == fields->tzOffset) {
+		goto found;
 	    }
 	}
-	if (!found) {
-	    if (nHave == 8) {
-		Tcl_Panic("loop in ConvertLocalToUTCUsingTable");
-	    }
-	    have[nHave] = fields->tzOffset;
-	    ++nHave;
+	if (nHave == 8) {
+	    Tcl_Panic("loop in ConvertLocalToUTCUsingTable");
 	}
+	have[nHave].tzName = cellv[3];
+	have[nHave++].tzOffset = fields->tzOffset;
 	fields->seconds = fields->localSeconds - fields->tzOffset;
     }
-    fields->tzOffset = have[i];
+
+  found:
+    fields->tzOffset = have[i].tzOffset;
     fields->seconds = fields->localSeconds - fields->tzOffset;
+    TclSetObjRef(fields->tzName, have[i].tzName);
+
     return TCL_OK;
 }
 
@@ -833,26 +2069,21 @@ ConvertLocalToUTCUsingTable(
 
 static int
 ConvertLocalToUTCUsingC(
-    Tcl_Interp* interp,		/* Tcl interpreter */
-    TclDateFields* fields,	/* Time to convert, with 'seconds' filled in */
+    Tcl_Interp *interp,		/* Tcl interpreter */
+    TclDateFields *fields,	/* Time to convert, with 'seconds' filled in */
     int changeover)		/* Julian Day of the Gregorian transition */
 {
     struct tm timeVal;
     int localErrno;
     int secondOfDay;
-    Tcl_WideInt jsec;
 
     /*
      * Convert the given time to a date.
      */
 
-    jsec = fields->localSeconds + JULIAN_SEC_POSIX_EPOCH;
-    fields->julianDay = (int) (jsec / SECONDS_PER_DAY);
-    secondOfDay = (int)(jsec % SECONDS_PER_DAY);
-    if (secondOfDay < 0) {
-	secondOfDay += SECONDS_PER_DAY;
-	--fields->julianDay;
-    }
+    ClockExtractJDAndSODFromSeconds(fields->julianDay, secondOfDay,
+	    fields->localSeconds);
+
     GetGregorianEraYearDay(fields, changeover);
     GetMonthDay(fields);
 
@@ -879,7 +2110,7 @@ ConvertLocalToUTCUsingC(
     Tcl_MutexLock(&clockMutex);
     errno = 0;
     fields->seconds = (Tcl_WideInt) mktime(&timeVal);
-    localErrno = errno;
+    localErrno = (fields->seconds == -1) ? errno : 0;
     Tcl_MutexUnlock(&clockMutex);
 
     /*
@@ -888,8 +2119,8 @@ ConvertLocalToUTCUsingC(
 
     if (localErrno != 0
 	    || (fields->seconds == -1 && timeVal.tm_yday == -1)) {
-	Tcl_SetResult(interp, "time value too large/small to represent",
-		TCL_STATIC);
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"time value too large/small to represent", TCL_AUTO_LENGTH));
 	return TCL_ERROR;
     }
     return TCL_OK;
@@ -911,20 +2142,66 @@ ConvertLocalToUTCUsingC(
  *----------------------------------------------------------------------
  */
 
-static int
+int
 ConvertUTCToLocal(
-    Tcl_Interp* interp,		/* Tcl interpreter */
-    TclDateFields* fields,	/* Fields of the time */
-    Tcl_Obj* tzdata,		/* Time zone data */
+    ClockClientData *dataPtr,	/* Literal pool, etc. */
+    Tcl_Interp *interp,		/* Tcl interpreter */
+    TclDateFields *fields,	/* Fields of the time */
+    Tcl_Obj *timezoneObj,	/* Time zone */
     int changeover)		/* Julian Day of the Gregorian transition */
 {
-    int rowc;			/* Number of rows in tzdata */
-    Tcl_Obj** rowv;		/* Pointers to the rows */
+    Tcl_Obj *tzdata;		/* Time zone data */
+    Tcl_Size rowc;		/* Number of rows in tzdata */
+    Tcl_Obj **rowv;		/* Pointers to the rows */
+    ClockLastTZOffs * ltzoc = NULL;
+
+    /* fast phase-out for shared GMT-object (don't need to convert UTC 2 UTC) */
+    if (timezoneObj == dataPtr->literals[LIT_GMT]) {
+	fields->localSeconds = fields->seconds;
+	fields->tzOffset = 0;
+	if (dataPtr->gmtTZName == NULL) {
+	    Tcl_Obj *tzName;
+
+	    tzdata = ClockGetTZData(dataPtr, interp, timezoneObj);
+	    if (TclListObjGetElements(interp, tzdata, &rowc, &rowv) != TCL_OK
+		    || Tcl_ListObjIndex(interp, rowv[0], 3, &tzName) != TCL_OK) {
+		return TCL_ERROR;
+	    }
+	    TclSetObjRef(dataPtr->gmtTZName, tzName);
+	}
+	TclSetObjRef(fields->tzName, dataPtr->gmtTZName);
+	return TCL_OK;
+    }
+
+    /*
+     * Check cacheable conversion could be used
+     * (last-period UTC2Local cache within the same TZ and seconds)
+     */
+    for (rowc = 0; rowc < 2; rowc++) {
+	ltzoc = &dataPtr->lastTZOffsCache[rowc];
+	if (timezoneObj != ltzoc->timezoneObj || changeover != ltzoc->changeover) {
+	    ltzoc = NULL;
+	    continue;
+	}
+	if (fields->seconds >= ltzoc->rangesVal[0]
+		&& fields->seconds < ltzoc->rangesVal[1]) {
+	    /* the same time zone and offset (UTC time inside the last minute) */
+	    fields->tzOffset = ltzoc->tzOffset;
+	    fields->localSeconds = fields->seconds + fields->tzOffset;
+	    TclSetObjRef(fields->tzName, ltzoc->tzName);
+	    return TCL_OK;
+	}
+    }
 
     /*
      * Unpack the tz data.
      */
 
+    tzdata = ClockGetTZData(dataPtr, interp, timezoneObj);
+    if (tzdata == NULL) {
+	return TCL_ERROR;
+    }
+
     if (TclListObjGetElements(interp, tzdata, &rowc, &rowv) != TCL_OK) {
 	return TCL_ERROR;
     }
@@ -935,10 +2212,46 @@ ConvertUTCToLocal(
      */
 
     if (rowc == 0) {
-	return ConvertUTCToLocalUsingC(interp, fields, changeover);
+	if (ConvertUTCToLocalUsingC(interp, fields, changeover) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+
+	/* signal we need to revalidate TZ epoch next time fields gets used. */
+	fields->flags |= CLF_CTZ;
+
+	/* we cannot cache (ranges unknown yet) */
     } else {
-	return ConvertUTCToLocalUsingTable(interp, fields, rowc, rowv);
+	Tcl_WideInt rangesVal[2];
+
+	if (ConvertUTCToLocalUsingTable(interp, fields, rowc, rowv,
+		rangesVal) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+
+	/* converted using table (TZ isn't :localtime) */
+	fields->flags &= ~CLF_CTZ;
+
+	/* Cache the last conversion */
+	if (ltzoc != NULL) { /* slot was found above */
+	    /* timezoneObj and changeover are the same */
+	    TclSetObjRef(ltzoc->tzName, fields->tzName);
+	} else {
+	    /* no TZ in cache - just move second slot down and use the first one */
+	    ltzoc = &dataPtr->lastTZOffsCache[0];
+	    TclUnsetObjRef(dataPtr->lastTZOffsCache[1].timezoneObj);
+	    TclUnsetObjRef(dataPtr->lastTZOffsCache[1].tzName);
+	    memcpy(&dataPtr->lastTZOffsCache[1], ltzoc, sizeof(*ltzoc));
+	    TclInitObjRef(ltzoc->timezoneObj, timezoneObj);
+	    ltzoc->changeover = changeover;
+	    TclInitObjRef(ltzoc->tzName, fields->tzName);
+	}
+	ltzoc->localSeconds = fields->localSeconds;
+	ltzoc->rangesVal[0] = rangesVal[0];
+	ltzoc->rangesVal[1] = rangesVal[1];
+	ltzoc->tzOffset = fields->tzOffset;
     }
+
+    return TCL_OK;
 }
 
 /*
@@ -961,24 +2274,25 @@ ConvertUTCToLocal(
 
 static int
 ConvertUTCToLocalUsingTable(
-    Tcl_Interp* interp,		/* Tcl interpreter */
-    TclDateFields* fields,	/* Fields of the date */
-    int rowc,			/* Number of rows in the conversion table
+    Tcl_Interp *interp,		/* Tcl interpreter */
+    TclDateFields *fields,	/* Fields of the date */
+    Tcl_Size rowc,		/* Number of rows in the conversion table
 				 * (>= 1) */
-    Tcl_Obj *const rowv[])	/* Rows of the conversion table */
+    Tcl_Obj *const rowv[],	/* Rows of the conversion table */
+    Tcl_WideInt *rangesVal)	/* Return bounds for time period */
 {
-    Tcl_Obj* row;		/* Row containing the current information */
-    int cellc;			/* Count of cells in the row (must be 4) */
-    Tcl_Obj** cellv;		/* Pointers to the cells */
+    Tcl_Obj *row;		/* Row containing the current information */
+    Tcl_Size cellc;		/* Count of cells in the row (must be 4) */
+    Tcl_Obj **cellv;		/* Pointers to the cells */
 
     /*
      * Look up the nearest transition time.
      */
 
-    row = LookupLastTransition(interp, fields->seconds, rowc, rowv);
-    if (row == NULL ||
-	    TclListObjGetElements(interp, row, &cellc, &cellv) != TCL_OK ||
-	    TclGetIntFromObj(interp,cellv[1],&(fields->tzOffset)) != TCL_OK) {
+    row = LookupLastTransition(interp, fields->seconds, rowc, rowv, rangesVal);
+    if (row == NULL
+	    || TclListObjGetElements(interp, row, &cellc, &cellv) != TCL_OK
+	    || TclGetIntFromObj(interp, cellv[1], &fields->tzOffset) != TCL_OK) {
 	return TCL_ERROR;
     }
 
@@ -986,8 +2300,7 @@ ConvertUTCToLocalUsingTable(
      * Convert the time.
      */
 
-    fields->tzName = cellv[3];
-    Tcl_IncrRefCount(fields->tzName);
+    TclSetObjRef(fields->tzName, cellv[3]);
     fields->localSeconds = fields->seconds + fields->tzOffset;
     return TCL_OK;
 }
@@ -1013,14 +2326,14 @@ ConvertUTCToLocalUsingTable(
 
 static int
 ConvertUTCToLocalUsingC(
-    Tcl_Interp* interp,		/* Tcl interpreter */
-    TclDateFields* fields,	/* Time to convert, with 'seconds' filled in */
+    Tcl_Interp *interp,		/* Tcl interpreter */
+    TclDateFields *fields,	/* Time to convert, with 'seconds' filled in */
     int changeover)		/* Julian Day of the Gregorian transition */
 {
     time_t tock;
-    struct tm* timeVal;		/* Time after conversion */
+    struct tm *timeVal;		/* Time after conversion */
     int diff;			/* Time zone diff local-Greenwich */
-    char buffer[16];		/* Buffer for time zone name */
+    char buffer[16], *p;	/* Buffer for time zone name */
 
     /*
      * Use 'localtime' to determine local year, month, day, time of day.
@@ -1028,18 +2341,18 @@ ConvertUTCToLocalUsingC(
 
     tock = (time_t) fields->seconds;
     if ((Tcl_WideInt) tock != fields->seconds) {
-	Tcl_AppendResult(interp,
-		"number too large to represent as a Posix time", NULL);
-	Tcl_SetErrorCode(interp, "CLOCK", "argTooLarge", NULL);
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"number too large to represent as a Posix time", TCL_AUTO_LENGTH));
+	Tcl_SetErrorCode(interp, "CLOCK", "argTooLarge", (char *)NULL);
 	return TCL_ERROR;
     }
     TzsetIfNecessary();
     timeVal = ThreadSafeLocalTime(&tock);
     if (timeVal == NULL) {
-	Tcl_AppendResult(interp,
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
 		"localtime failed (clock value may be too "
-		"large/small to represent)", NULL);
-	Tcl_SetErrorCode(interp, "CLOCK", "localtimeFailed", NULL);
+		"large/small to represent)", TCL_AUTO_LENGTH));
+	Tcl_SetErrorCode(interp, "CLOCK", "localtimeFailed", (char *)NULL);
 	return TCL_ERROR;
     }
 
@@ -1047,7 +2360,7 @@ ConvertUTCToLocalUsingC(
      * Fill in the date in 'fields' and use it to derive Julian Day.
      */
 
-    fields->era = CE;
+    fields->isBce = 0;
     fields->year = timeVal->tm_year + 1900;
     fields->month = timeVal->tm_mon + 1;
     fields->dayOfMonth = timeVal->tm_mday;
@@ -1057,7 +2370,7 @@ ConvertUTCToLocalUsingC(
      * Convert that value to seconds.
      */
 
-    fields->localSeconds = (((fields->julianDay * (Tcl_WideInt) 24
+    fields->localSeconds = (((fields->julianDay * 24LL
 	    + timeVal->tm_hour) * 60 + timeVal->tm_min) * 60
 	    + timeVal->tm_sec) - JULIAN_SEC_POSIX_EPOCH;
 
@@ -1073,15 +2386,14 @@ ConvertUTCToLocalUsingC(
     } else {
 	*buffer = '+';
     }
-    sprintf(buffer+1, "%02d", diff / 3600);
+    TclItoAw(buffer + 1, diff / 3600, '0', 2);
     diff %= 3600;
-    sprintf(buffer+3, "%02d", diff / 60);
+    p = TclItoAw(buffer + 3, diff / 60, '0', 2);
     diff %= 60;
-    if (diff > 0) {
-	sprintf(buffer+5, "%02d", diff);
+    if (diff != 0) {
+	p = TclItoAw(buffer + 5, diff, '0', 2);
     }
-    fields->tzName = Tcl_NewStringObj(buffer, -1);
-    Tcl_IncrRefCount(fields->tzName);
+    TclSetObjRef(fields->tzName, Tcl_NewStringObj(buffer, p - buffer));
     return TCL_OK;
 }
 
@@ -1099,24 +2411,24 @@ ConvertUTCToLocalUsingC(
  *----------------------------------------------------------------------
  */
 
-static Tcl_Obj*
+Tcl_Obj *
 LookupLastTransition(
-    Tcl_Interp* interp,		/* Interpreter for error messages */
+    Tcl_Interp *interp,		/* Interpreter for error messages */
     Tcl_WideInt tick,		/* Time from the epoch */
-    int rowc,			/* Number of rows of tzdata */
-    Tcl_Obj *const *rowv)	/* Rows in tzdata */
+    Tcl_Size rowc,		/* Number of rows of tzdata */
+    Tcl_Obj *const *rowv,	/* Rows in tzdata */
+    Tcl_WideInt *rangesVal)	/* Return bounds for time period */
 {
-    int l;
-    int u;
-    Tcl_Obj* compObj;
-    Tcl_WideInt compVal;
+    Tcl_Size l, u;
+    Tcl_Obj *compObj;
+    Tcl_WideInt compVal, fromVal = LLONG_MIN, toVal = LLONG_MAX;
 
     /*
      * Examine the first row to make sure we're in bounds.
      */
 
     if (Tcl_ListObjIndex(interp, rowv[0], 0, &compObj) != TCL_OK
-	    || Tcl_GetWideIntFromObj(interp, compObj, &compVal) != TCL_OK) {
+	    || TclGetWideIntFromObj(interp, compObj, &compVal) != TCL_OK) {
 	return NULL;
     }
 
@@ -1125,7 +2437,11 @@ LookupLastTransition(
      * anyway.
      */
 
-    if (tick < compVal) {
+    if (tick < (fromVal = compVal)) {
+	if (rangesVal) {
+	    rangesVal[0] = fromVal;
+	    rangesVal[1] = toVal;
+	}
 	return rowv[0];
     }
 
@@ -1134,20 +2450,27 @@ LookupLastTransition(
      */
 
     l = 0;
-    u = rowc-1;
+    u = rowc - 1;
     while (l < u) {
-	int m = (l + u + 1) / 2;
+	Tcl_Size m = (l + u + 1) / 2;
 
 	if (Tcl_ListObjIndex(interp, rowv[m], 0, &compObj) != TCL_OK ||
-		Tcl_GetWideIntFromObj(interp, compObj, &compVal) != TCL_OK) {
+		TclGetWideIntFromObj(interp, compObj, &compVal) != TCL_OK) {
 	    return NULL;
 	}
 	if (tick >= compVal) {
 	    l = m;
+	    fromVal = compVal;
 	} else {
-	    u = m-1;
+	    u = m - 1;
+	    toVal = compVal;
 	}
     }
+
+    if (rangesVal) {
+	rangesVal[0] = fromVal;
+	rangesVal[1] = toVal;
+    }
     return rowv[l];
 }
 
@@ -1171,13 +2494,15 @@ LookupLastTransition(
 
 static void
 GetYearWeekDay(
-    TclDateFields* fields,	/* Date to convert, must have 'julianDay' */
+    TclDateFields *fields,	/* Date to convert, must have 'julianDay' */
     int changeover)		/* Julian Day Number of the Gregorian
 				 * transition */
 {
     TclDateFields temp;
     int dayOfFiscalYear;
 
+    temp.tzName = NULL;
+
     /*
      * Find the given date, minus three days, plus one year. That date's
      * iso8601 year is an upper bound on the ISO8601 year of the given date.
@@ -1185,7 +2510,7 @@ GetYearWeekDay(
 
     temp.julianDay = fields->julianDay - 3;
     GetGregorianEraYearDay(&temp, changeover);
-    if (temp.era == BCE) {
+    if (temp.isBce) {
 	temp.iso8601Year = temp.year - 1;
     } else {
 	temp.iso8601Year = temp.year + 1;
@@ -1201,7 +2526,7 @@ GetYearWeekDay(
      */
 
     if (fields->julianDay < temp.julianDay) {
-	if (temp.era == BCE) {
+	if (temp.isBce) {
 	    temp.iso8601Year += 1;
 	} else {
 	    temp.iso8601Year -= 1;
@@ -1213,7 +2538,7 @@ GetYearWeekDay(
     dayOfFiscalYear = fields->julianDay - temp.julianDay;
     fields->iso8601Week = (dayOfFiscalYear / 7) + 1;
     fields->dayOfWeek = (dayOfFiscalYear + 1) % 7;
-    if (fields->dayOfWeek < 1) {
+    if (fields->dayOfWeek < 1) { /* Mon .. Sun == 1 .. 7 */
 	fields->dayOfWeek += 7;
     }
 }
@@ -1238,13 +2563,13 @@ GetYearWeekDay(
 
 static void
 GetGregorianEraYearDay(
-    TclDateFields* fields,	/* Date fields containing 'julianDay' */
+    TclDateFields *fields,	/* Date fields containing 'julianDay' */
     int changeover)		/* Gregorian transition date */
 {
-    int jday = fields->julianDay;
-    int day;
-    int year;
-    int n;
+    Tcl_WideInt jday = fields->julianDay;
+    Tcl_WideInt day;
+    Tcl_WideInt year;
+    Tcl_WideInt n;
 
     if (jday >= changeover) {
 	/*
@@ -1264,7 +2589,7 @@ GetGregorianEraYearDay(
 	day %= FOUR_CENTURIES;
 	if (day < 0) {
 	    day += FOUR_CENTURIES;
-	    --n;
+	    n--;
 	}
 	year += 400 * n;
 
@@ -1284,7 +2609,6 @@ GetGregorianEraYearDay(
 	    day += ONE_CENTURY_GREGORIAN;
 	}
 	year += 100 * n;
-
     } else {
 	/*
 	 * Julian calendar.
@@ -1293,7 +2617,6 @@ GetGregorianEraYearDay(
 	fields->gregorian = 0;
 	year = 1;
 	day = jday - JDAY_1_JAN_1_CE_JULIAN;
-
     }
 
     /*
@@ -1304,7 +2627,7 @@ GetGregorianEraYearDay(
     day %= FOUR_YEARS;
     if (day < 0) {
 	day += FOUR_YEARS;
-	--n;
+	n--;
     }
     year += 4 * n;
 
@@ -1329,10 +2652,10 @@ GetGregorianEraYearDay(
      */
 
     if (year <= 0) {
-	fields->era = BCE;
+	fields->isBce = 1;
 	fields->year = 1 - year;
     } else {
-	fields->era = CE;
+	fields->isBce = 0;
 	fields->year = year;
     }
     fields->dayOfYear = day + 1;
@@ -1356,16 +2679,32 @@ GetGregorianEraYearDay(
 
 static void
 GetMonthDay(
-    TclDateFields* fields)	/* Date to convert */
+    TclDateFields *fields)	/* Date to convert */
 {
     int day = fields->dayOfYear;
     int month;
-    const int* h = hath[IsGregorianLeapYear(fields)];
+    const int *dipm = daysInPriorMonths[IsGregorianLeapYear(fields)];
 
-    for (month = 0; month < 12 && day > h[month]; ++month) {
-	day -= h[month];
+    /*
+     * Estimate month by calculating `dayOfYear / (365/12)`
+     */
+    month = (day*12) / dipm[12];
+    /* then do forwards backwards correction */
+    while (1) {
+	if (day > dipm[month]) {
+	    if (month >= 11 || day <= dipm[month + 1]) {
+		break;
+	    }
+	    month++;
+	} else {
+	    if (month == 0) {
+		break;
+	    }
+	    month--;
+	}
     }
-    fields->month = month+1;
+    day -= dipm[month];
+    fields->month = month + 1;
     fields->dayOfMonth = day;
 }
 
@@ -1386,21 +2725,23 @@ GetMonthDay(
  *----------------------------------------------------------------------
  */
 
-static void
+void
 GetJulianDayFromEraYearWeekDay(
-    TclDateFields* fields,	/* Date to convert */
+    TclDateFields *fields,	/* Date to convert */
     int changeover)		/* Julian Day Number of the Gregorian
 				 * transition */
 {
-    int firstMonday;		/* Julian day number of week 1, day 1 in the
+    Tcl_WideInt firstMonday;	/* Julian day number of week 1, day 1 in the
 				 * given year */
+    TclDateFields firstWeek;
+
+    firstWeek.tzName = NULL;
 
     /*
      * Find January 4 in the ISO8601 year, which will always be in week 1.
      */
 
-    TclDateFields firstWeek;
-    firstWeek.era = fields->era;
+    firstWeek.isBce = fields->isBce;
     firstWeek.year = fields->iso8601Year;
     firstWeek.month = 1;
     firstWeek.dayOfMonth = 4;
@@ -1437,17 +2778,15 @@ GetJulianDayFromEraYearWeekDay(
  *----------------------------------------------------------------------
  */
 
-static void
+void
 GetJulianDayFromEraYearMonthDay(
-    TclDateFields* fields,	/* Date to convert */
+    TclDateFields *fields,	/* Date to convert */
     int changeover)		/* Gregorian transition date as a Julian Day */
 {
-    int year;  int ym1;
-    int month; int mm1;
-    int q; int r;
-    int ym1o4; int ym1o100; int ym1o400;
+    Tcl_WideInt year, ym1, ym1o4, ym1o100, ym1o400;
+    int month, mm1, q, r;
 
-    if (fields->era == BCE) {
+    if (fields->isBce) {
 	year = 1 - fields->year;
     } else {
 	year = fields->year;
@@ -1475,10 +2814,10 @@ GetJulianDayFromEraYearMonthDay(
 
     fields->gregorian = 1;
     if (year < 1) {
-	fields->era = BCE;
-	fields->year = 1-year;
+	fields->isBce = 1;
+	fields->year = 1 - year;
     } else {
-	fields->era = CE;
+	fields->isBce = 0;
 	fields->year = year;
     }
 
@@ -1486,17 +2825,29 @@ GetJulianDayFromEraYearMonthDay(
      * Try an initial conversion in the Gregorian calendar.
      */
 
+#if 0 /* BUG https://core.tcl-lang.org/tcl/tktview?name=da340d4f32 */
     ym1o4 = ym1 / 4;
+#else
+    /*
+     * Have to make sure quotient is truncated towards 0 when negative.
+     * See above bug for details. The casts are necessary.
+     */
+    if (ym1 >= 0) {
+	ym1o4 = ym1 / 4;
+    } else {
+	ym1o4 = - (int) (((unsigned int) -ym1) / 4);
+    }
+#endif
     if (ym1 % 4 < 0) {
-	--ym1o4;
+	ym1o4--;
     }
     ym1o100 = ym1 / 100;
     if (ym1 % 100 < 0) {
-	--ym1o100;
+	ym1o100--;
     }
     ym1o400 = ym1 / 400;
     if (ym1 % 400 < 0) {
-	--ym1o400;
+	ym1o400--;
     }
     fields->julianDay = JDAY_1_JAN_1_CE_GREGORIAN - 1
 	    + fields->dayOfMonth
@@ -1516,14 +2867,68 @@ GetJulianDayFromEraYearMonthDay(
 	fields->julianDay = JDAY_1_JAN_1_CE_JULIAN - 1
 		+ fields->dayOfMonth
 		+ daysInPriorMonths[year%4 == 0][month - 1]
-		+ (ONE_YEAR * ym1)
-	        + ym1o4;
+		+ (365 * ym1)
+		+ ym1o4;
     }
 }
 
 /*
  *----------------------------------------------------------------------
  *
+ * GetJulianDayFromEraYearDay --
+ *
+ *	Given era, year, and dayOfYear (in TclDateFields), and the
+ *	Gregorian transition date, computes the Julian Day Number.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Stores day number in 'julianDay'
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+GetJulianDayFromEraYearDay(
+    TclDateFields *fields,	/* Date to convert */
+    int changeover)		/* Gregorian transition date as a Julian Day */
+{
+    Tcl_WideInt year, ym1;
+
+    /* Get absolute year number from the civil year */
+    if (fields->isBce) {
+	year = 1 - fields->year;
+    } else {
+	year = fields->year;
+    }
+
+    ym1 = year - 1;
+
+    /* Try the Gregorian calendar first. */
+    fields->gregorian = 1;
+    fields->julianDay =
+	    1721425
+	    + fields->dayOfYear
+	    + (365 * ym1)
+	    + (ym1 / 4)
+	    - (ym1 / 100)
+	    + (ym1 / 400);
+
+    /* If the date is before the Gregorian change, use the Julian calendar. */
+
+    if (fields->julianDay < changeover) {
+	fields->gregorian = 0;
+	fields->julianDay =
+		1721423
+		+ fields->dayOfYear
+		+ (365 * ym1)
+		+ (ym1 / 4);
+    }
+}
+/*
+ *----------------------------------------------------------------------
+ *
  * IsGregorianLeapYear --
  *
  *	Tests whether a given year is a leap year, in either Julian or
@@ -1535,24 +2940,22 @@ GetJulianDayFromEraYearMonthDay(
  *----------------------------------------------------------------------
  */
 
-static int
+int
 IsGregorianLeapYear(
-    TclDateFields* fields)	/* Date to test */
+    TclDateFields *fields)	/* Date to test */
 {
-    int year;
+    Tcl_WideInt year = fields->year;
 
-    if (fields->era == BCE) {
-	year = 1 - fields->year;
-    } else {
-	year = fields->year;
+    if (fields->isBce) {
+	year = 1 - year;
     }
-    if (year%4 != 0) {
+    if (year % 4 != 0) {
 	return 0;
     } else if (!(fields->gregorian)) {
 	return 1;
-    } else if (year%400 == 0) {
+    } else if (year % 400 == 0) {
 	return 1;
-    } else if (year%100 == 0) {
+    } else if (year % 100 == 0) {
 	return 0;
     } else {
 	return 1;
@@ -1573,10 +2976,10 @@ IsGregorianLeapYear(
  *----------------------------------------------------------------------
  */
 
-static int
+static Tcl_WideInt
 WeekdayOnOrBefore(
     int dayOfWeek,		/* Day of week; Sunday == 0 or 7 */
-    int julianDay)		/* Reference date */
+    Tcl_WideInt julianDay)	/* Reference date */
 {
     int k = (dayOfWeek + 6) % 7;
     if (k < 0) {
@@ -1608,24 +3011,43 @@ WeekdayOnOrBefore(
 
 int
 ClockGetenvObjCmd(
-    ClientData clientData,
-    Tcl_Interp* interp,
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,
     int objc,
     Tcl_Obj *const objv[])
 {
-    const char* varName;
-    const char* varValue;
+#ifdef _WIN32
+    const WCHAR *varName;
+    const WCHAR *varValue;
+    Tcl_DString ds;
+#else
+    const char *varName;
+    const char *varValue;
+#endif
 
     if (objc != 2) {
 	Tcl_WrongNumArgs(interp, 1, objv, "name");
 	return TCL_ERROR;
     }
+#ifdef _WIN32
+    Tcl_DStringInit(&ds);
+    varName = Tcl_UtfToWCharDString(TclGetString(objv[1]), -1, &ds);
+    varValue = _wgetenv(varName);
+    if (varValue == NULL) {
+	Tcl_DStringFree(&ds);
+    } else {
+	Tcl_DStringSetLength(&ds, 0);
+	Tcl_WCharToUtfDString(varValue, -1, &ds);
+	Tcl_DStringResult(interp, &ds);
+    }
+#else
     varName = TclGetString(objv[1]);
     varValue = getenv(varName);
-    if (varValue == NULL) {
-	varValue = "";
+    if (varValue != NULL) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		varValue, TCL_AUTO_LENGTH));
     }
-    Tcl_SetObjResult(interp, Tcl_NewStringObj(varValue, -1));
+#endif
     return TCL_OK;
 }
 
@@ -1655,10 +3077,9 @@ ThreadSafeLocalTime(
      * Get a thread-local buffer to hold the returned time.
      */
 
-    struct tm *tmPtr = (struct tm *)
-	    Tcl_GetThreadData(&tmKey, (int) sizeof(struct tm));
+    struct tm *tmPtr = (struct tm *)Tcl_GetThreadData(&tmKey, sizeof(struct tm));
 #ifdef HAVE_LOCALTIME_R
-    localtime_r(timePtr, tmPtr);
+    tmPtr = localtime_r(timePtr, tmPtr);
 #else
     struct tm *sysTmPtr;
 
@@ -1667,10 +3088,9 @@ ThreadSafeLocalTime(
     if (sysTmPtr == NULL) {
 	Tcl_MutexUnlock(&clockMutex);
 	return NULL;
-    } else {
-	memcpy((void *) tmPtr, (void *) localtime(timePtr), sizeof(struct tm));
-	Tcl_MutexUnlock(&clockMutex);
     }
+    memcpy(tmPtr, sysTmPtr, sizeof(struct tm));
+    Tcl_MutexUnlock(&clockMutex);
 #endif
     return tmPtr;
 }
@@ -1695,19 +3115,20 @@ ThreadSafeLocalTime(
 
 int
 ClockClicksObjCmd(
-    ClientData clientData,	/* Client data is unused */
-    Tcl_Interp* interp,		/* Tcl interpreter */
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,		/* Tcl interpreter */
     int objc,			/* Parameter count */
-    Tcl_Obj* const* objv)	/* Parameter values */
+    Tcl_Obj *const *objv)	/* Parameter values */
 {
-    static const char *clicksSwitches[] = {
+    static const char *const clicksSwitches[] = {
 	"-milliseconds", "-microseconds", NULL
     };
     enum ClicksSwitch {
-	CLICKS_MILLIS,   CLICKS_MICROS,   CLICKS_NATIVE
+	CLICKS_MILLIS, CLICKS_MICROS, CLICKS_NATIVE
     };
     int index = CLICKS_NATIVE;
     Tcl_Time now;
+    Tcl_WideInt clicks = 0;
 
     switch (objc) {
     case 1:
@@ -1719,30 +3140,28 @@ ClockClicksObjCmd(
 	}
 	break;
     default:
-	Tcl_WrongNumArgs(interp, 1, objv, "?option?");
+	Tcl_WrongNumArgs(interp, 0, objv, "clock clicks ?-switch?");
 	return TCL_ERROR;
     }
 
     switch (index) {
     case CLICKS_MILLIS:
 	Tcl_GetTime(&now);
-	Tcl_SetObjResult(interp, Tcl_NewWideIntObj((Tcl_WideInt)
-		now.sec * 1000 + now.usec / 1000));
+	clicks = now.sec * 1000LL + now.usec / 1000;
 	break;
-    case CLICKS_NATIVE: {
-#ifndef TCL_WIDE_CLICKS
-	unsigned long clicks = TclpGetClicks();
+    case CLICKS_NATIVE:
+#ifdef TCL_WIDE_CLICKS
+	clicks = TclpGetWideClicks();
 #else
-	Tcl_WideInt clicks = TclpGetWideClicks();
+	clicks = (Tcl_WideInt)TclpGetClicks();
 #endif
-	Tcl_SetObjResult(interp, Tcl_NewWideIntObj((Tcl_WideInt) clicks));
 	break;
-    }
     case CLICKS_MICROS:
-	Tcl_SetObjResult(interp, Tcl_NewWideIntObj(TclpGetMicroseconds()));
+	clicks = TclpGetMicroseconds();
 	break;
     }
 
+    Tcl_SetObjResult(interp, Tcl_NewWideIntObj(clicks));
     return TCL_OK;
 }
 
@@ -1766,20 +3185,22 @@ ClockClicksObjCmd(
 
 int
 ClockMillisecondsObjCmd(
-    ClientData clientData,	/* Client data is unused */
-    Tcl_Interp* interp,		/* Tcl interpreter */
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,		/* Tcl interpreter */
     int objc,			/* Parameter count */
-    Tcl_Obj* const* objv)	/* Parameter values */
+    Tcl_Obj *const *objv)	/* Parameter values */
 {
     Tcl_Time now;
+    Tcl_Obj *timeObj;
 
     if (objc != 1) {
-	Tcl_WrongNumArgs(interp, 1, objv, NULL);
+	Tcl_WrongNumArgs(interp, 0, objv, "clock milliseconds");
 	return TCL_ERROR;
     }
     Tcl_GetTime(&now);
-    Tcl_SetObjResult(interp, Tcl_NewWideIntObj( (Tcl_WideInt)
-	    now.sec * 1000 + now.usec / 1000));
+    TclNewUIntObj(timeObj, (Tcl_WideUInt)
+	    now.sec * 1000 + now.usec / 1000);
+    Tcl_SetObjResult(interp, timeObj);
     return TCL_OK;
 }
 
@@ -1803,135 +3224,1347 @@ ClockMillisecondsObjCmd(
 
 int
 ClockMicrosecondsObjCmd(
-    ClientData clientData,	/* Client data is unused */
-    Tcl_Interp* interp,		/* Tcl interpreter */
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,		/* Tcl interpreter */
     int objc,			/* Parameter count */
-    Tcl_Obj* const* objv)	/* Parameter values */
+    Tcl_Obj *const *objv)	/* Parameter values */
 {
     if (objc != 1) {
-	Tcl_WrongNumArgs(interp, 1, objv, NULL);
+	Tcl_WrongNumArgs(interp, 0, objv, "clock microseconds");
 	return TCL_ERROR;
     }
     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(TclpGetMicroseconds()));
     return TCL_OK;
 }
 
+static inline void
+ClockInitFmtScnArgs(
+    ClockClientData *dataPtr,
+    Tcl_Interp *interp,
+    ClockFmtScnCmdArgs *opts)
+{
+    memset(opts, 0, sizeof(*opts));
+    opts->dataPtr = dataPtr;
+    opts->interp = interp;
+}
+
 /*
  *-----------------------------------------------------------------------------
  *
- * ClockParseformatargsObjCmd --
+ * ClockParseFmtScnArgs --
  *
- *	Parses the arguments for [clock format].
+ *	Parses the arguments for sub-commands "scan", "format" and "add".
  *
- * Results:
- *	Returns a standard Tcl result, whose value is a four-element 
- *	list comprising the time format, the locale, and the timezone.
+ *	Note:	common options table used here, because for the options often used
+ *		the same literals (objects), so it avoids permanent "recompiling" of
+ *		option object representation to indexType with another table.
  *
- * This function exists because the loop that parses the [clock format]
- * options is a known performance "hot spot", and is implemented in an 
- * effort to speed that particular code up.
+ * Results:
+ *	Returns a standard Tcl result, and stores parsed options
+ *	(format, the locale, timezone and base) in structure "opts".
  *
  *-----------------------------------------------------------------------------
  */
 
-static int
-ClockParseformatargsObjCmd(
-    ClientData clientData,	/* Client data containing literal pool */
-    Tcl_Interp* interp,		/* Tcl interpreter */
-    int objc,			/* Parameter count */
-    Tcl_Obj *const objv[]	/* Parameter vector */
-) {
-
-    ClockClientData* dataPtr = (ClockClientData*) clientData;
-    Tcl_Obj** litPtr = dataPtr->literals;
+typedef enum ClockOperation {
+    CLC_OP_FMT = 0,		/* Doing [clock format] */
+    CLC_OP_SCN,			/* Doing [clock scan] */
+    CLC_OP_ADD			/* Doing [clock add] */
+} ClockOperation;
 
-    /* Format, locale and timezone */
-
-    Tcl_Obj* results[3];
-#define formatObj results[0]
-#define localeObj results[1]
-#define timezoneObj results[2]
+static int
+ClockParseFmtScnArgs(
+    ClockFmtScnCmdArgs *opts,	/* Result vector: format, locale, timezone... */
+    TclDateFields *date,	/* Extracted date-time corresponding base
+				 * (by scan or add) resp. clockval (by format) */
+    Tcl_Size objc,		/* Parameter count */
+    Tcl_Obj *const objv[],	/* Parameter vector */
+    ClockOperation operation,	/* What operation are we doing: format, scan, add */
+    const char *syntax)		/* Syntax of the current command */
+{
+    Tcl_Interp *interp = opts->interp;
+    ClockClientData *dataPtr = opts->dataPtr;
     int gmtFlag = 0;
-
-    /* Command line options expected */
-
-    static const char* options[] = {
-	"-format",		"-gmt",			"-locale",
-	"-timezone",		NULL };
+    static const char *const options[] = {
+	"-base", "-format", "-gmt", "-locale", "-timezone", "-validate", NULL
+    };
     enum optionInd {
-	CLOCK_FORMAT_FORMAT,	CLOCK_FORMAT_GMT,	CLOCK_FORMAT_LOCALE,
-	CLOCK_FORMAT_TIMEZONE 
+	CLC_ARGS_BASE, CLC_ARGS_FORMAT, CLC_ARGS_GMT, CLC_ARGS_LOCALE,
+	CLC_ARGS_TIMEZONE, CLC_ARGS_VALIDATE
     };
-    int optionIndex;		/* Index of an option */
-    int saw = 0;		/* Flag == 1 if option was seen already */
-    Tcl_WideInt clockVal;	/* Clock value - just used to parse */
-    int i;
-
-    /* Args consist of a time followed by keyword-value pairs */
-
-    if (objc < 2 || (objc % 2) != 0) {
-	Tcl_WrongNumArgs(interp, 0, objv,
-			 "clock format clockval ?-format string? "
-			 "?-gmt boolean? ?-locale LOCALE? ?-timezone ZONE?");
-	Tcl_SetErrorCode(interp, "CLOCK", "wrongNumArgs", NULL);
-	return TCL_ERROR;
+    int optionIndex;		/* Index of an option. */
+    int saw = 0;		/* Flag == 1 if option was seen already. */
+    Tcl_Size i, baseIdx;
+    Tcl_WideInt baseVal;	/* Base time, expressed in seconds from the Epoch */
+
+    if (operation == CLC_OP_SCN) {
+	/* default flags (from configure) */
+	opts->flags |= dataPtr->defFlags & CLF_VALIDATE;
+    } else {
+	/* clock value (as current base) */
+	opts->baseObj = objv[(baseIdx = 1)];
+	saw |= 1 << CLC_ARGS_BASE;
     }
 
-    /* Extract values for the keywords */
+    /*
+     * Extract values for the keywords.
+     */
 
-    formatObj = litPtr[LIT__DEFAULT_FORMAT];
-    localeObj = litPtr[LIT_C];
-    timezoneObj = litPtr[LIT__NIL];
     for (i = 2; i < objc; i+=2) {
-	if (Tcl_GetIndexFromObj(interp, objv[i], options, "switch", 0,
-				&optionIndex) != TCL_OK) {
-	    Tcl_SetErrorCode(interp, "CLOCK", "badSwitch",
-			     Tcl_GetString(objv[i]), NULL);
-	    return TCL_ERROR;
+	/* bypass integers (offsets) by "clock add" */
+	if (operation == CLC_OP_ADD) {
+	    Tcl_WideInt num;
+
+	    if (TclGetWideIntFromObj(NULL, objv[i], &num) == TCL_OK) {
+		continue;
+	    }
+	}
+	/* get option */
+	if (Tcl_GetIndexFromObj(interp, objv[i], options,
+		"option", 0, &optionIndex) != TCL_OK) {
+	    goto badOptionMsg;
+	}
+	/* if already specified */
+	if (saw & (1 << optionIndex)) {
+	    if (operation != CLC_OP_SCN && optionIndex == CLC_ARGS_BASE) {
+		goto badOptionMsg;
+	    }
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "bad option \"%s\": doubly present",
+		    TclGetString(objv[i])));
+	    goto badOption;
 	}
 	switch (optionIndex) {
-	case CLOCK_FORMAT_FORMAT:
-	    formatObj = objv[i+1];
+	case CLC_ARGS_FORMAT:
+	    if (operation == CLC_OP_ADD) {
+		goto badOptionMsg;
+	    }
+	    opts->formatObj = objv[i + 1];
 	    break;
-	case CLOCK_FORMAT_GMT:
-	    if (Tcl_GetBooleanFromObj(interp, objv[i+1], &gmtFlag) != TCL_OK) {
+	case CLC_ARGS_GMT:
+	    if (Tcl_GetBooleanFromObj(interp, objv[i + 1], &gmtFlag) != TCL_OK){
 		return TCL_ERROR;
 	    }
 	    break;
-	case CLOCK_FORMAT_LOCALE:
-	    localeObj = objv[i+1];
+	case CLC_ARGS_LOCALE:
+	    opts->localeObj = objv[i + 1];
+	    break;
+	case CLC_ARGS_TIMEZONE:
+	    opts->timezoneObj = objv[i + 1];
 	    break;
-	case CLOCK_FORMAT_TIMEZONE:
-	    timezoneObj = objv[i+1];
+	case CLC_ARGS_BASE:
+	    opts->baseObj = objv[(baseIdx = i + 1)];
+	    break;
+	case CLC_ARGS_VALIDATE:
+	    if (operation != CLC_OP_SCN) {
+		goto badOptionMsg;
+	    } else {
+		int val;
+
+		if (Tcl_GetBooleanFromObj(interp, objv[i + 1], &val) != TCL_OK) {
+		    return TCL_ERROR;
+		}
+		if (val) {
+		    opts->flags |= CLF_VALIDATE;
+		} else {
+		    opts->flags &= ~CLF_VALIDATE;
+		}
+	    }
 	    break;
 	}
-	saw |= (1 << optionIndex);
+	saw |= 1 << optionIndex;
     }
 
-    /* Check options */
+    /*
+     * Check options.
+     */
 
-    if (Tcl_GetWideIntFromObj(interp, objv[1], &clockVal) != TCL_OK) {
+    if ((saw & (1 << CLC_ARGS_GMT))
+	    && (saw & (1 << CLC_ARGS_TIMEZONE))) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"cannot use -gmt and -timezone in same call", TCL_AUTO_LENGTH));
+	Tcl_SetErrorCode(interp, "CLOCK", "gmtWithTimezone", (char *)NULL);
 	return TCL_ERROR;
     }
-    if ((saw & (1 << CLOCK_FORMAT_GMT))
-	&& (saw & (1 << CLOCK_FORMAT_TIMEZONE))) {
-	Tcl_SetObjResult(interp, litPtr[LIT_CANNOT_USE_GMT_AND_TIMEZONE]);
-	Tcl_SetErrorCode(interp, "CLOCK", "gmtWithTimezone", NULL);
+    if (gmtFlag) {
+	opts->timezoneObj = dataPtr->literals[LIT_GMT];
+    } else if (opts->timezoneObj == NULL
+	    || TclGetString(opts->timezoneObj) == NULL
+	    || opts->timezoneObj->length == 0) {
+	/* If time zone not specified use system time zone */
+	opts->timezoneObj = ClockGetSystemTimeZone(dataPtr, interp);
+	if (opts->timezoneObj == NULL) {
+	    return TCL_ERROR;
+	}
+    }
+
+    /* Setup timezone (normalize object if needed and load TZ on demand) */
+
+    opts->timezoneObj = ClockSetupTimeZone(dataPtr, interp, opts->timezoneObj);
+    if (opts->timezoneObj == NULL) {
 	return TCL_ERROR;
     }
-    if (gmtFlag) {
-	timezoneObj = litPtr[LIT_GMT];
+
+    /* Base (by scan or add) or clock value (by format) */
+
+    if (opts->baseObj != NULL) {
+	Tcl_Obj *baseObj = opts->baseObj;
+
+	/* bypass integer recognition if looks like "now" or "-now" */
+	if ((baseObj->bytes &&
+		((baseObj->length == 3 && baseObj->bytes[0] == 'n') ||
+		 (baseObj->length == 4 && baseObj->bytes[1] == 'n')))
+		|| TclGetWideIntFromObj(NULL, baseObj, &baseVal) != TCL_OK) {
+	    /* we accept "now" and "-now" as current date-time */
+	    static const char *const nowOpts[] = {
+		"now", "-now", NULL
+	    };
+	    int idx;
+
+	    if (Tcl_GetIndexFromObj(NULL, baseObj, nowOpts, "seconds",
+		    TCL_EXACT, &idx) == TCL_OK) {
+		goto baseNow;
+	    }
+
+	    if (TclHasInternalRep(baseObj, &tclBignumType)) {
+		goto baseOverflow;
+	    }
+
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"bad seconds \"%s\": must be now or integer",
+		TclGetString(baseObj)));
+	    i = baseIdx;
+	    goto badOption;
+	}
+	/*
+	 * Seconds could be an unsigned number that overflowed. Make sure
+	 * that it isn't. Additionally it may be too complex to calculate
+	 * julianday etc (forwards/backwards) by too large/small values, thus
+	 * just let accept a bit shorter values to avoid overflow.
+	 * Note the year is currently an integer, thus avoid to overflow it also.
+	 */
+
+	if (TclHasInternalRep(baseObj, &tclBignumType)
+		|| baseVal < TCL_MIN_SECONDS || baseVal > TCL_MAX_SECONDS) {
+	baseOverflow:
+	    Tcl_SetObjResult(interp, dataPtr->literals[LIT_INTEGER_VALUE_TOO_LARGE]);
+	    i = baseIdx;
+	    goto badOption;
+	}
+    } else {
+	Tcl_Time now;
+
+    baseNow:
+	Tcl_GetTime(&now);
+	baseVal = (Tcl_WideInt) now.sec;
+    }
+
+    /*
+     * Extract year, month and day from the base time for the parser to use as
+     * defaults
+     */
+
+    /* check base fields already cached (by TZ, last-second cache) */
+    if (dataPtr->lastBase.timezoneObj == opts->timezoneObj
+	    && dataPtr->lastBase.date.seconds == baseVal
+	    && (!(dataPtr->lastBase.date.flags & CLF_CTZ)
+	    || dataPtr->lastTZEpoch == TzsetIfNecessary())) {
+	memcpy(date, &dataPtr->lastBase.date, ClockCacheableDateFieldsSize);
+    } else {
+	/* extact fields from base */
+	date->seconds = baseVal;
+	if (ClockGetDateFields(dataPtr, interp, date, opts->timezoneObj,
+	      GREGORIAN_CHANGE_DATE) != TCL_OK) {
+	    /* TODO - GREGORIAN_CHANGE_DATE should be locale-dependent */
+	    return TCL_ERROR;
+	}
+	/* cache last base */
+	memcpy(&dataPtr->lastBase.date, date, ClockCacheableDateFieldsSize);
+	TclSetObjRef(dataPtr->lastBase.timezoneObj, opts->timezoneObj);
+    }
+
+    return TCL_OK;
+
+  badOptionMsg:
+    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+	    "bad option \"%s\": must be %s",
+	    TclGetString(objv[i]), syntax));
+
+  badOption:
+    Tcl_SetErrorCode(interp, "CLOCK", "badOption",
+	    (i < objc) ? TclGetString(objv[i]) : (char *)NULL, (char *)NULL);
+    return TCL_ERROR;
+}
+
+/*----------------------------------------------------------------------
+ *
+ * ClockFormatObjCmd -- , clock format --
+ *
+ *	This function is invoked to process the Tcl "clock format" command.
+ *
+ *	Formats a count of seconds since the Posix Epoch as a time of day.
+ *
+ *	The 'clock format' command formats times of day for output.  Refer
+ *	to the user documentation to see what it does.
+ *
+ * Results:
+ *	Returns a standard Tcl result.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+ClockFormatObjCmd(
+    void *clientData,		/* Client data containing literal pool */
+    Tcl_Interp *interp,		/* Tcl interpreter */
+    int objc,			/* Parameter count */
+    Tcl_Obj *const objv[])	/* Parameter values */
+{
+    ClockClientData *dataPtr = (ClockClientData *)clientData;
+    static const char *syntax = "clock format clockval|now "
+	    "?-format string? "
+	    "?-gmt boolean? "
+	    "?-locale LOCALE? ?-timezone ZONE?";
+    int ret;
+    ClockFmtScnCmdArgs opts;	/* Format, locale, timezone and base */
+    DateFormat dateFmt;		/* Common structure used for formatting */
+
+    /* even number of arguments */
+    if ((objc & 1) == 1) {
+	Tcl_WrongNumArgs(interp, 0, objv, syntax);
+	Tcl_SetErrorCode(interp, "CLOCK", "wrongNumArgs", (char *)NULL);
+	return TCL_ERROR;
+    }
+
+    memset(&dateFmt, 0, sizeof(dateFmt));
+
+    /*
+     * Extract values for the keywords.
+     */
+
+    ClockInitFmtScnArgs(dataPtr, interp, &opts);
+    ret = ClockParseFmtScnArgs(&opts, &dateFmt.date, objc, objv,
+	    CLC_OP_FMT, "-format, -gmt, -locale, or -timezone");
+    if (ret != TCL_OK) {
+	goto done;
+    }
+
+    /* Default format */
+    if (opts.formatObj == NULL) {
+	opts.formatObj = dataPtr->literals[LIT__DEFAULT_FORMAT];
+    }
+
+    /* Use compiled version of Format - */
+    ret = ClockFormat(&dateFmt, &opts);
+
+  done:
+    TclUnsetObjRef(dateFmt.date.tzName);
+    return ret;
+}
+
+/*----------------------------------------------------------------------
+ *
+ * ClockScanObjCmd -- , clock scan --
+ *
+ *	This function is invoked to process the Tcl "clock scan" command.
+ *
+ *	Inputs a count of seconds since the Posix Epoch as a time of day.
+ *
+ *	The 'clock scan' command scans times of day on input. Refer to the
+ *	user documentation to see what it does.
+ *
+ * Results:
+ *	Returns a standard Tcl result.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+ClockScanObjCmd(
+    void *clientData,		/* Client data containing literal pool */
+    Tcl_Interp *interp,		/* Tcl interpreter */
+    int objc,			/* Parameter count */
+    Tcl_Obj *const objv[])	/* Parameter values */
+{
+    ClockClientData *dataPtr = (ClockClientData *)clientData;
+    static const char *syntax = "clock scan string "
+	    "?-base seconds? "
+	    "?-format string? "
+	    "?-gmt boolean? "
+	    "?-locale LOCALE? ?-timezone ZONE? ?-validate boolean?";
+    int ret;
+    ClockFmtScnCmdArgs opts;	/* Format, locale, timezone and base */
+    DateInfo yy;		/* Common structure used for parsing */
+    DateInfo *info = &yy;
+
+    /* even number of arguments */
+    if ((objc & 1) == 1) {
+	Tcl_WrongNumArgs(interp, 0, objv, syntax);
+	Tcl_SetErrorCode(interp, "CLOCK", "wrongNumArgs", (char *)NULL);
+	return TCL_ERROR;
+    }
+
+    ClockInitDateInfo(&yy);
+
+    /*
+     * Extract values for the keywords.
+     */
+
+    ClockInitFmtScnArgs(dataPtr, interp, &opts);
+    ret = ClockParseFmtScnArgs(&opts, &yy.date, objc, objv,
+	    CLC_OP_SCN, "-base, -format, -gmt, -locale, -timezone or -validate");
+    if (ret != TCL_OK) {
+	goto done;
+    }
+
+    /* seconds are in localSeconds (relative base date), so reset time here */
+    yyHour = yyMinutes = yySeconds = yySecondOfDay = 0; yyMeridian = MER24;
+
+    /* If free scan */
+    if (opts.formatObj == NULL) {
+	/* Use compiled version of FreeScan - */
+
+	/* [SB] TODO: Perhaps someday we'll localize the legacy code. Right now,
+	 * it's not localized. */
+	if (opts.localeObj != NULL) {
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "legacy [clock scan] does not support -locale", TCL_AUTO_LENGTH));
+	    Tcl_SetErrorCode(interp, "CLOCK", "flagWithLegacyFormat", (char *)NULL);
+	    ret = TCL_ERROR;
+	    goto done;
+	}
+	ret = ClockFreeScan(&yy, objv[1], &opts);
+    } else {
+	/* Use compiled version of Scan - */
+
+	ret = ClockScan(&yy, objv[1], &opts);
+    }
+
+    if (ret != TCL_OK) {
+	goto done;
+    }
+
+    /* Convert date info structure into UTC seconds */
+
+    ret = ClockScanCommit(&yy, &opts);
+    if (ret != TCL_OK) {
+	goto done;
+    }
+
+    /* Apply remaining validation rules, if expected */
+    if (opts.flags & CLF_VALIDATE) {
+	ret = ClockValidDate(&yy, &opts, opts.flags & CLF_VALIDATE);
+	if (ret != TCL_OK) {
+	    goto done;
+	}
+    }
+
+  done:
+    TclUnsetObjRef(yy.date.tzName);
+    if (ret != TCL_OK) {
+	return ret;
+    }
+    Tcl_SetObjResult(interp, Tcl_NewWideIntObj(yy.date.seconds));
+    return TCL_OK;
+}
+
+/*----------------------------------------------------------------------
+ *
+ * ClockScanCommit --
+ *
+ *	Converts date info structure into UTC seconds.
+ *
+ * Results:
+ *	Returns a standard Tcl result.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+ClockScanCommit(
+    DateInfo *info,		/* Clock scan info structure */
+    ClockFmtScnCmdArgs *opts)	/* Format, locale, timezone and base */
+{
+    /*
+     * If no GMT and not free-scan (where valid stage 1 is done in-between),
+     * validate with stage 1 before local time conversion, otherwise it may
+     * adjust date/time tokens to valid values
+     */
+    if ((opts->flags & CLF_VALIDATE_S1)
+	    && info->flags & (CLF_ASSEMBLE_SECONDS|CLF_LOCALSEC)) {
+	if (ClockValidDate(info, opts, CLF_VALIDATE_S1) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+    }
+
+    /* If needed assemble julianDay using year, month, etc. */
+    if (info->flags & CLF_ASSEMBLE_JULIANDAY) {
+	if (info->flags & CLF_ISO8601WEEK) {
+	    GetJulianDayFromEraYearWeekDay(&yydate, GREGORIAN_CHANGE_DATE);
+	} else if (!(info->flags & CLF_DAYOFYEAR) /* no day of year */
+		|| (info->flags & (CLF_DAYOFMONTH|CLF_MONTH)) /* yymmdd over yyddd */
+		== (CLF_DAYOFMONTH|CLF_MONTH)) {
+	    GetJulianDayFromEraYearMonthDay(&yydate, GREGORIAN_CHANGE_DATE);
+	} else {
+	    GetJulianDayFromEraYearDay(&yydate, GREGORIAN_CHANGE_DATE);
+	}
+	info->flags |= CLF_ASSEMBLE_SECONDS;
+	info->flags &= ~CLF_ASSEMBLE_JULIANDAY;
+    }
+
+    /* some overflow checks */
+    if (info->flags & CLF_JULIANDAY) {
+	double curJDN = (double)yydate.julianDay
+		+ ((double)yySecondOfDay - SECONDS_PER_DAY/2) / SECONDS_PER_DAY;
+	if (curJDN > opts->dataPtr->maxJDN) {
+	    Tcl_SetObjResult(opts->interp, Tcl_NewStringObj(
+		    "requested date too large to represent", TCL_AUTO_LENGTH));
+	    Tcl_SetErrorCode(opts->interp, "CLOCK", "dateTooLarge", (char *)NULL);
+	    return TCL_ERROR;
+	}
+    }
+
+    /* If seconds overflows the day (not valide case, or 24:00), increase days */
+    if (yySecondOfDay >= SECONDS_PER_DAY) {
+	yydate.julianDay += (yySecondOfDay / SECONDS_PER_DAY);
+	yySecondOfDay %= SECONDS_PER_DAY;
+    }
+
+    /* Local seconds to UTC (stored in yydate.seconds) */
+
+    if (info->flags & CLF_ASSEMBLE_SECONDS) {
+	yydate.localSeconds =
+		-210866803200LL
+		+ (SECONDS_PER_DAY * yydate.julianDay)
+		+ yySecondOfDay;
+    }
+
+    if (info->flags & (CLF_ASSEMBLE_SECONDS | CLF_LOCALSEC)) {
+	if (ConvertLocalToUTC(opts->dataPtr, opts->interp, &yydate,
+		opts->timezoneObj, GREGORIAN_CHANGE_DATE) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+    }
+
+    /* Increment UTC seconds with relative time */
+
+    yydate.seconds += yyRelSeconds;
+    return TCL_OK;
+}
+
+/*----------------------------------------------------------------------
+ *
+ * ClockValidDate --
+ *
+ *	Validate date info structure for wrong data (e. g. out of ranges).
+ *
+ * Results:
+ *	Returns a standard Tcl result.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+ClockValidDate(
+    DateInfo *info,		/* Clock scan info structure */
+    ClockFmtScnCmdArgs *opts,	/* Scan options */
+    int stage)			/* Stage to validate (1, 2 or 3 for both) */
+{
+    const char *errMsg = "", *errCode = "";
+    TclDateFields temp;
+    int tempCpyFlg = 0;
+    ClockClientData *dataPtr = opts->dataPtr;
+
+#if 0
+    printf("yyMonth %d, yyDay %d, yyDayOfYear %d, yyHour %d, yyMinutes %d, yySeconds %" TCL_LL_MODIFIER "d, "
+	    "yySecondOfDay %" TCL_LL_MODIFIER "d, sec %" TCL_LL_MODIFIER "d, daySec %" TCL_LL_MODIFIER "d, tzOffset %d\n",
+	    yyMonth, yyDay, yydate.dayOfYear, yyHour, yyMinutes, yySeconds,
+	    yySecondOfDay, yydate.localSeconds, yydate.localSeconds % SECONDS_PER_DAY,
+	    yydate.tzOffset);
+#endif
+
+    if (!(stage & CLF_VALIDATE_S1) || !(opts->flags & CLF_VALIDATE_S1)) {
+	goto stage_2;
+    }
+    opts->flags &= ~CLF_VALIDATE_S1; /* stage 1 is done */
+
+    /* first year (used later in hath / daysInPriorMonths) */
+    if ((info->flags & (CLF_YEAR | CLF_ISO8601YEAR))) {
+	if ((info->flags & CLF_ISO8601YEAR)) {
+	    if (yydate.iso8601Year < dataPtr->validMinYear
+		    || yydate.iso8601Year > dataPtr->validMaxYear) {
+		errMsg = "invalid iso year";
+		errCode = "iso year";
+		goto error;
+	    }
+	}
+	if (info->flags & CLF_YEAR) {
+	    if (yyYear < dataPtr->validMinYear
+		    || yyYear > dataPtr->validMaxYear) {
+		errMsg = "invalid year";
+		errCode = "year";
+		goto error;
+	    }
+	} else if ((info->flags & CLF_ISO8601YEAR)) {
+	    yyYear = yydate.iso8601Year; /* used to recognize leap */
+	}
+	if ((info->flags & (CLF_ISO8601YEAR | CLF_YEAR))
+		== (CLF_ISO8601YEAR | CLF_YEAR)) {
+	    if (yyYear != yydate.iso8601Year) {
+		errMsg = "ambiguous year";
+		errCode = "year";
+		goto error;
+	    }
+	}
+    }
+    /* and month (used later in hath) */
+    if (info->flags & CLF_MONTH) {
+	if (yyMonth < 1 || yyMonth > 12) {
+	    errMsg = "invalid month";
+	    errCode = "month";
+	    goto error;
+	}
+    }
+    /* day of month */
+    if (info->flags & (CLF_DAYOFMONTH|CLF_DAYOFWEEK)) {
+	if (yyDay < 1 || yyDay > 31) {
+	    errMsg = "invalid day";
+	    errCode = "day";
+	    goto error;
+	}
+	if ((info->flags & CLF_MONTH)) {
+	    const int *h = hath[IsGregorianLeapYear(&yydate)];
+
+	    if (yyDay > h[yyMonth - 1]) {
+		errMsg = "invalid day";
+		errCode = "day";
+		goto error;
+	    }
+	}
+    }
+    if (info->flags & CLF_DAYOFYEAR) {
+	if (yydate.dayOfYear < 1
+		|| yydate.dayOfYear > daysInPriorMonths[IsGregorianLeapYear(&yydate)][12]) {
+	    errMsg = "invalid day of year";
+	    errCode = "day of year";
+	    goto error;
+	}
+    }
+
+    /* mmdd !~ ddd */
+    if ((info->flags & (CLF_DAYOFYEAR|CLF_DAYOFMONTH|CLF_MONTH))
+	    == (CLF_DAYOFYEAR|CLF_DAYOFMONTH|CLF_MONTH)) {
+	if (!tempCpyFlg) {
+	    memcpy(&temp, &yydate, sizeof(temp));
+	    tempCpyFlg = 1;
+	}
+	GetJulianDayFromEraYearDay(&temp, GREGORIAN_CHANGE_DATE);
+	if (temp.julianDay != yydate.julianDay) {
+	    errMsg = "ambiguous day";
+	    errCode = "day";
+	    goto error;
+	}
+    }
+
+    if (info->flags & CLF_TIME) {
+	/* hour */
+	if (yyHour < 0 || yyHour > ((yyMeridian == MER24) ? 23 : 12)) {
+	    /* allow 24:00:00 as special case, see [aee9f2b916afd976] */
+	    if (yyMeridian == MER24 && yyHour == 24) {
+		if (yyMinutes != 0 || yySeconds != 0) {
+		    errMsg = "invalid time";
+		    errCode = "time";
+		    goto error;
+		}
+		/* 24:00 is next day 00:00, correct day of week if given */
+		if (info->flags & CLF_DAYOFWEEK) {
+		    if (++yyDayOfWeek > 7) { /* Mon .. Sun == 1 .. 7 */
+			yyDayOfWeek = 1;
+		    }
+		}
+	    } else {
+		errMsg = "invalid time (hour)";
+		errCode = "hour";
+		goto error;
+	    }
+	}
+	/* minutes */
+	if (yyMinutes < 0 || yyMinutes > 59) {
+	    errMsg = "invalid time (minutes)";
+	    errCode = "minutes";
+	    goto error;
+	}
+	/* oldscan could return secondOfDay -1 by invalid time (see ToSeconds) */
+	if (yySeconds < 0 || yySeconds > 59 || yySecondOfDay <= -1) {
+	    errMsg = "invalid time";
+	    errCode = "seconds";
+	    goto error;
+	}
+    }
+
+    if (!(stage & CLF_VALIDATE_S2) || !(opts->flags & CLF_VALIDATE_S2)) {
+	return TCL_OK;
+    }
+
+    /*
+     * Further tests expected ready calculated julianDay (inclusive relative),
+     * and time-zone conversion (local to UTC time).
+     */
+  stage_2:
+
+    opts->flags &= ~CLF_VALIDATE_S2; /* stage 2 is done */
+
+    /* time, regarding the modifications by the time-zone (looks for given time
+     * in between DST-time hole, so does not exist in this time-zone) */
+    if (info->flags & CLF_TIME) {
+	/*
+	 * we don't need to do the backwards time-conversion (UTC to local) and
+	 * compare results, because the after conversion (local to UTC) we
+	 * should have valid localSeconds (was not invalidated to TCL_INV_SECONDS),
+	 * so if it was invalidated - invalid time, outside the time-zone (in DST-hole)
+	 */
+	if (yydate.localSeconds == TCL_INV_SECONDS) {
+	    errMsg = "invalid time (does not exist in this time-zone)";
+	    errCode = "out-of-time";
+	    goto error;
+	}
     }
 
-    /* Return options as a list */
+    /* day of week */
+    if (info->flags & CLF_DAYOFWEEK) {
+	if (!tempCpyFlg) {
+	    memcpy(&temp, &yydate, sizeof(temp));
+	    tempCpyFlg = 1;
+	}
+	GetYearWeekDay(&temp, GREGORIAN_CHANGE_DATE);
+	if (temp.dayOfWeek != yyDayOfWeek) {
+	    errMsg = "invalid day of week";
+	    errCode = "day of week";
+	    goto error;
+	}
+    }
 
-    Tcl_SetObjResult(interp, Tcl_NewListObj(3, results));
     return TCL_OK;
 
-#undef timezoneObj
-#undef localeObj
-#undef formatObj
+  error:
+    Tcl_SetObjResult(opts->interp, Tcl_ObjPrintf(
+	    "unable to convert input string: %s", errMsg));
+    Tcl_SetErrorCode(opts->interp, "CLOCK", "invInpStr", errCode, (char *)NULL);
+    return TCL_ERROR;
+}
+
+/*----------------------------------------------------------------------
+ *
+ * ClockFreeScan --
+ *
+ *	Used by ClockScanObjCmd for free scanning without format.
+ *
+ * Results:
+ *	Returns a standard Tcl result.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+ClockFreeScan(
+    DateInfo *info,		/* Date fields used for parsing & converting
+				 * simultaneously a yy-parse structure of the
+				 * TclClockFreeScan */
+    Tcl_Obj *strObj,		/* String containing the time to scan */
+    ClockFmtScnCmdArgs *opts)	/* Command options */
+{
+    Tcl_Interp *interp = opts->interp;
+    ClockClientData *dataPtr = opts->dataPtr;
+
+    /*
+     * Parse the date. The parser will fill a structure "info" with date,
+     * time, time zone, relative month/day/seconds, relative weekday, ordinal
+     * month.
+     * Notice that many yy-defines point to values in the "info" or "date"
+     * structure, e. g. yySecondOfDay -> info->date.secondOfDay or
+     *			yyMonth -> info->date.month (same as yydate.month)
+     */
+    yyInput = TclGetString(strObj);
+
+    if (TclClockFreeScan(interp, info) != TCL_OK) {
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"unable to convert date-time string \"%s\": %s",
+		TclGetString(strObj), Tcl_GetString(Tcl_GetObjResult(interp))));
+	return TCL_ERROR;
+    }
+
+    /*
+     * If the caller supplied a date in the string, update the date with
+     * the value. If the caller didn't specify a time with the date, default to
+     * midnight.
+     */
+
+    if (info->flags & CLF_YEAR) {
+	if (yyYear < 100) {
+	    if (yyYear >= dataPtr->yearOfCenturySwitch) {
+		yyYear -= 100;
+	    }
+	    yyYear += dataPtr->currentYearCentury;
+	}
+	yydate.isBce = 0;
+	info->flags |= CLF_ASSEMBLE_JULIANDAY|CLF_ASSEMBLE_SECONDS;
+    }
+
+    /*
+     * If the caller supplied a time zone in the string, make it into a time
+     * zone indicator of +-hhmm and setup this time zone.
+     */
+
+    if (info->flags & CLF_ZONE) {
+	if (yyTimezone || !yyDSTmode) {
+	    /* Real time zone from numeric zone */
+	    Tcl_Obj *tzObjStor = NULL;
+	    int minEast = -yyTimezone;
+	    int dstFlag = 1 - yyDSTmode;
+
+	    tzObjStor = ClockFormatNumericTimeZone(
+		    60 * minEast + 3600 * dstFlag);
+	    Tcl_IncrRefCount(tzObjStor);
+
+	    opts->timezoneObj = ClockSetupTimeZone(dataPtr, interp, tzObjStor);
+
+	    Tcl_DecrRefCount(tzObjStor);
+	} else {
+	    /* simplest case - GMT / UTC */
+	    opts->timezoneObj = ClockSetupTimeZone(dataPtr, interp,
+		    dataPtr->literals[LIT_GMT]);
+	}
+	if (opts->timezoneObj == NULL) {
+	    return TCL_ERROR;
+	}
+
+	// TclSetObjRef(yydate.tzName, opts->timezoneObj);
+
+	info->flags |= CLF_ASSEMBLE_SECONDS;
+    }
+
+    /*
+     * For freescan apply validation rules (stage 1) before mixed with
+     * relative time (otherwise always valid recalculated date & time).
+     */
+    if (opts->flags & CLF_VALIDATE) {
+	if (ClockValidDate(info, opts, CLF_VALIDATE_S1) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+    }
 
+    /*
+     * Assemble date, time, zone into seconds-from-epoch
+     */
+
+    if ((info->flags & (CLF_TIME | CLF_HAVEDATE)) == CLF_HAVEDATE) {
+	yySecondOfDay = 0;
+	info->flags |= CLF_ASSEMBLE_SECONDS;
+    } else if (info->flags & CLF_TIME) {
+	yySecondOfDay = ToSeconds(yyHour, yyMinutes, yySeconds, yyMeridian);
+	info->flags |= CLF_ASSEMBLE_SECONDS;
+    } else if ((info->flags & (CLF_DAYOFWEEK | CLF_HAVEDATE)) == CLF_DAYOFWEEK
+	    || (info->flags & CLF_ORDINALMONTH)
+	    || ((info->flags & CLF_RELCONV)
+	    && (yyRelMonth != 0 || yyRelDay != 0))) {
+	yySecondOfDay = 0;
+	info->flags |= CLF_ASSEMBLE_SECONDS;
+    } else {
+	yySecondOfDay = yydate.localSeconds % SECONDS_PER_DAY;
+	if (yySecondOfDay < 0) { /* compiler fix for signed-mod */
+	    yySecondOfDay += SECONDS_PER_DAY;
+	}
+    }
+
+    /*
+     * Do relative times if needed.
+     */
+
+    if (info->flags & CLF_RELCONV) {
+	if (ClockCalcRelTime(info, opts) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+    }
+
+    /* Free scanning completed - date ready */
+    return TCL_OK;
+}
+
+/*----------------------------------------------------------------------
+ *
+ * ClockCalcRelTime --
+ *
+ *	Used for calculating of relative times.
+ *
+ * Results:
+ *	Returns a standard Tcl result.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+int
+ClockCalcRelTime(
+    DateInfo *info,		/* Date fields used for converting */
+    ClockFmtScnCmdArgs *opts)	/* Command options */
+{
+    int prevDayOfWeek = yyDayOfWeek;	/* preserve unchanged day of week */
+
+    /*
+     * Because some calculations require in-between conversion of the
+     * julian day, and fixed order due to tokens precedence,
+     * we can repeat this processing multiple times
+     */
+  repeat_rel:
+
+    /*
+     * Relative conversion normally possible in UTC time only, because
+     * of possible wrong local time increment if ignores in-between DST-hole.
+     * (see tests clock-34.53, clock-34.54) or by jump across TZ (CET/CEST).
+     * So increment date in julianDay, but time inside day in UTC (seconds).
+     */
+
+    /* add relative months (or years in months) */
+
+    if (yyRelMonth != 0) {
+	int m, h;
+
+	/* if needed extract year, month, etc. again */
+	if (info->flags & CLF_ASSEMBLE_DATE) {
+	    GetGregorianEraYearDay(&yydate, GREGORIAN_CHANGE_DATE);
+	    GetMonthDay(&yydate);
+	    GetYearWeekDay(&yydate, GREGORIAN_CHANGE_DATE);
+	    info->flags &= ~CLF_ASSEMBLE_DATE;
+	}
+
+	/* add the requisite number of months */
+	yyMonth += yyRelMonth - 1;
+	yyYear += yyMonth / 12;
+	m = yyMonth % 12;
+	/* compiler fix for signed-mod - wrap y, m = (0, -1) -> (-1, 11) */
+	if (m < 0) {
+	    m += 12;
+	    yyYear--;
+	}
+	yyMonth = m + 1;
+
+	/* if the day doesn't exist in the current month, repair it */
+	h = hath[IsGregorianLeapYear(&yydate)][m];
+	if (yyDay > h) {
+	    yyDay = h;
+	}
+
+	/* on demand (lazy) assemble julianDay using new year, month, etc. */
+	info->flags |= CLF_ASSEMBLE_JULIANDAY | CLF_ASSEMBLE_SECONDS;
+
+	yyRelMonth = 0;
+    }
+
+    /* add relative days (or other parts aligned to days) */
+    if (yyRelDay) {
+	/* assemble julianDay using new year, month, etc. */
+	if (info->flags & CLF_ASSEMBLE_JULIANDAY) {
+	    GetJulianDayFromEraYearMonthDay(&yydate, GREGORIAN_CHANGE_DATE);
+	    info->flags &= ~CLF_ASSEMBLE_JULIANDAY;
+	}
+	yydate.julianDay += yyRelDay;
+
+	/* julianDay was changed, on demand (lazy) extract year, month, etc. again */
+	info->flags |= CLF_ASSEMBLE_DATE | CLF_ASSEMBLE_SECONDS;
+	yyRelDay = 0;
+    }
+
+    /* do relative (ordinal) month */
+
+    if (info->flags & CLF_ORDINALMONTH) {
+	int monthDiff;
+
+	/* if needed extract year, month, etc. again */
+	if (info->flags & CLF_ASSEMBLE_DATE) {
+	    GetGregorianEraYearDay(&yydate, GREGORIAN_CHANGE_DATE);
+	    GetMonthDay(&yydate);
+	    GetYearWeekDay(&yydate, GREGORIAN_CHANGE_DATE);
+	    info->flags &= ~CLF_ASSEMBLE_DATE;
+	}
+
+	if (yyMonthOrdinalIncr > 0) {
+	    monthDiff = yyMonthOrdinal - yyMonth;
+	    if (monthDiff <= 0) {
+		monthDiff += 12;
+	    }
+	    yyMonthOrdinalIncr--;
+	} else {
+	    monthDiff = yyMonth - yyMonthOrdinal;
+	    if (monthDiff >= 0) {
+		monthDiff -= 12;
+	    }
+	    yyMonthOrdinalIncr++;
+	}
+
+	/* process it further via relative times */
+	yyYear += yyMonthOrdinalIncr;
+	yyRelMonth += monthDiff;
+	info->flags &= ~CLF_ORDINALMONTH;
+	info->flags |= CLF_ASSEMBLE_JULIANDAY|CLF_ASSEMBLE_SECONDS;
+
+	goto repeat_rel;
+    }
+
+    /* do relative weekday */
+
+    if ((info->flags & (CLF_DAYOFWEEK|CLF_HAVEDATE)) == CLF_DAYOFWEEK) {
+	/* restore scanned day of week */
+	yyDayOfWeek = prevDayOfWeek;
+
+	/* if needed assemble julianDay now */
+	if (info->flags & CLF_ASSEMBLE_JULIANDAY) {
+	    GetJulianDayFromEraYearMonthDay(&yydate, GREGORIAN_CHANGE_DATE);
+	    info->flags &= ~CLF_ASSEMBLE_JULIANDAY;
+	}
+
+	yydate.isBce = 0;
+	yydate.julianDay = WeekdayOnOrBefore(yyDayOfWeek, yydate.julianDay + 6)
+		+ 7 * yyDayOrdinal;
+	if (yyDayOrdinal > 0) {
+	    yydate.julianDay -= 7;
+	}
+	info->flags |= CLF_ASSEMBLE_DATE|CLF_ASSEMBLE_SECONDS;
+    }
+
+    /* If relative time is there, adjust it in UTC as mentioned above. */
+    if (yyRelSeconds) {
+	/*
+	 * If timezone is not GMT/UTC (due to DST-hole, local time offset),
+	 * we shall do in-between conversion to UTC to append seconds there
+	 * and hereafter convert back to TZ, otherwise apply it direct here.
+	 */
+	if (opts->timezoneObj != opts->dataPtr->literals[LIT_GMT]) {
+	    /*
+	     * Convert date info structure into UTC seconds and add relative
+	     * seconds (happens in commit).
+	     */
+	    if (ClockScanCommit(info, opts) != TCL_OK) {
+		return TCL_ERROR;
+	    }
+	    yyRelSeconds = 0;
+	    /* Convert it back */
+	    if (ClockGetDateFields(opts->dataPtr, opts->interp, &yydate,
+		  opts->timezoneObj, GREGORIAN_CHANGE_DATE) != TCL_OK) {
+		/* TODO - GREGORIAN_CHANGE_DATE should be locale-dependent */
+		return TCL_ERROR;
+	    }
+	    /* time together as seconds of the day */
+	    yySecondOfDay = yydate.localSeconds % SECONDS_PER_DAY;
+	    if (yySecondOfDay < 0) { /* compiler fix for signed-mod */
+		yySecondOfDay += SECONDS_PER_DAY;
+	    }
+	    /* restore scanned day of week */
+	    yyDayOfWeek = prevDayOfWeek;
+	} else {
+	    /*
+	     * GMT/UTC zone, so no DST and no offsets - apply it here, so that
+	     * if time exceeds current date, do the day conversion and leave the
+	     * rest of increment in yyRelSeconds (add it later in UTC by commit)
+	     */
+	    Tcl_WideInt newSecs = yySecondOfDay + yyRelSeconds;
+
+	    /* if seconds increment outside of current date, increment day */
+	    if (newSecs / SECONDS_PER_DAY != yySecondOfDay / SECONDS_PER_DAY) {
+		yyRelDay += newSecs / SECONDS_PER_DAY;
+		yySecondOfDay = 0;
+		yyRelSeconds = (newSecs %= SECONDS_PER_DAY);
+		if (newSecs < 0) { /* compiler fix for signed-mod */
+		    yyRelSeconds += SECONDS_PER_DAY;
+		    yyRelDay--;
+		}
+
+		goto repeat_rel;
+	    }
+	}
+    }
+
+    /* done, reset flag */
+    info->flags &= ~CLF_RELCONV;
+
+    return TCL_OK;
+}
+
+/*----------------------------------------------------------------------
+ *
+ * ClockWeekdaysOffs --
+ *
+ *	Get offset in days for the number of week days corresponding the
+ *	given day of week (skipping Saturdays and Sundays).
+ *
+ *
+ * Results:
+ *	Returns a day increment adjusted the given weekdays
+ *
+ *----------------------------------------------------------------------
+ */
+
+static inline int
+ClockWeekdaysOffs(
+    int dayOfWeek,
+    int offs)
+{
+    int weeks, resDayOfWeek;
+
+    /* offset in days */
+    weeks = offs / 5;
+    offs = offs % 5;
+    /* compiler fix for negative offs - wrap (0, -1) -> (-1, 4) */
+    if (offs < 0) {
+	offs += 5;
+	weeks--;
+    }
+    offs += 7 * weeks;
+
+    /* resulting day of week */
+    {
+	int day = (offs % 7);
+
+	/* compiler fix for negative offs - wrap (0, -1) -> (-1, 6) */
+	if (day < 0) {
+	    day += 7;
+	}
+	resDayOfWeek = dayOfWeek + day;
+    }
+
+    /* adjust if we start from a weekend */
+    if (dayOfWeek > 5) {
+	int adj = 5 - dayOfWeek;
+
+	offs += adj;
+	resDayOfWeek += adj;
+    }
+
+    /* adjust if we end up on a weekend */
+    if (resDayOfWeek > 5) {
+	offs += 2;
+    }
+
+    return offs;
+}
+
+/*----------------------------------------------------------------------
+ *
+ * ClockAddObjCmd -- , clock add --
+ *
+ *	Adds an offset to a given time.
+ *
+ *	Refer to the user documentation to see what it exactly does.
+ *
+ * Syntax:
+ *   clock add clockval ?count unit?... ?-option value?
+ *
+ * Parameters:
+ *   clockval -- Starting time value
+ *   count -- Amount of a unit of time to add
+ *   unit -- Unit of time to add, must be one of:
+ *	     years year months month weeks week
+ *	     days day hours hour minutes minute
+ *	     seconds second
+ *
+ * Options:
+ *   -gmt BOOLEAN
+ *	 Flag synonymous with '-timezone :GMT'
+ *   -timezone ZONE
+ *	 Name of the time zone in which calculations are to be done.
+ *   -locale NAME
+ *	 Name of the locale in which calculations are to be done.
+ *	 Used to determine the Gregorian change date.
+ *
+ * Results:
+ *	Returns a standard Tcl result with the given time adjusted
+ *	by the given offset(s) in order.
+ *
+ * Notes:
+ *   It is possible that adding a number of months or years will adjust the
+ *   day of the month as well.	For instance, the time at one month after
+ *   31 January is either 28 or 29 February, because February has fewer
+ *   than 31 days.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+ClockAddObjCmd(
+    void *clientData,		/* Client data containing literal pool */
+    Tcl_Interp *interp,		/* Tcl interpreter */
+    int objc,			/* Parameter count */
+    Tcl_Obj *const objv[])	/* Parameter values */
+{
+    static const char *syntax = "clock add clockval|now ?number units?..."
+	    "?-gmt boolean? "
+	    "?-locale LOCALE? ?-timezone ZONE?";
+    ClockClientData *dataPtr = (ClockClientData *)clientData;
+    int ret;
+    ClockFmtScnCmdArgs opts;	/* Format, locale, timezone and base */
+    DateInfo yy;		/* Common structure used for parsing */
+    DateInfo *info = &yy;
+
+    /* add "week" to units also (because otherwise ambiguous) */
+    static const char *const units[] = {
+	"years",	"months",	    "week",	    "weeks",
+	"days",		"weekdays",
+	"hours",	"minutes",	    "seconds",
+	NULL
+    };
+    enum unitInd {
+	CLC_ADD_YEARS,	CLC_ADD_MONTHS,	    CLC_ADD_WEEK,   CLC_ADD_WEEKS,
+	CLC_ADD_DAYS,	CLC_ADD_WEEKDAYS,
+	CLC_ADD_HOURS,	CLC_ADD_MINUTES,    CLC_ADD_SECONDS
+    };
+    int unitIndex = CLC_ADD_SECONDS;	/* Index of an option. */
+    Tcl_Size i;
+    Tcl_WideInt offs;
+
+    /* even number of arguments */
+    if ((objc & 1) == 1) {
+	Tcl_WrongNumArgs(interp, 0, objv, syntax);
+	Tcl_SetErrorCode(interp, "CLOCK", "wrongNumArgs", (char *)NULL);
+	return TCL_ERROR;
+    }
+
+    ClockInitDateInfo(&yy);
+
+    /*
+     * Extract values for the keywords.
+     */
+
+    ClockInitFmtScnArgs(dataPtr, interp, &opts);
+    ret = ClockParseFmtScnArgs(&opts, &yy.date, objc, objv,
+	    CLC_OP_ADD, "-gmt, -locale, or -timezone");
+    if (ret != TCL_OK) {
+	goto done;
+    }
+
+    /* time together as seconds of the day */
+    yySecondOfDay = yydate.localSeconds % SECONDS_PER_DAY;
+    if (yySecondOfDay < 0) { /* compiler fix for signed-mod */
+	yySecondOfDay += SECONDS_PER_DAY;
+    }
+    yySeconds = yySecondOfDay;
+    /* seconds are in localSeconds (relative base date), so reset time here */
+    yyHour = 0;
+    yyMinutes = 0;
+    yyMeridian = MER24;
+
+    ret = TCL_ERROR;
+
+    /*
+     * Find each offset and process date increment
+     */
+
+    for (i = 2; i < objc; i+=2) {
+	/* bypass not integers (options, allready processed above in ClockParseFmtScnArgs) */
+	if (TclGetWideIntFromObj(NULL, objv[i], &offs) != TCL_OK) {
+	    continue;
+	}
+	/* get unit */
+	if (Tcl_GetIndexFromObj(interp, objv[i + 1], units, "unit", 0,
+		&unitIndex) != TCL_OK) {
+	    goto done;
+	}
+	if (TclHasInternalRep(objv[i], &tclBignumType)
+		|| offs > (unitIndex < CLC_ADD_HOURS ? 0x7fffffff : TCL_MAX_SECONDS)
+		|| offs < (unitIndex < CLC_ADD_HOURS ? -0x7fffffff : TCL_MIN_SECONDS)) {
+	    Tcl_SetObjResult(interp, dataPtr->literals[LIT_INTEGER_VALUE_TOO_LARGE]);
+	    goto done;
+	}
+
+	/* nothing to do if zero quantity */
+	if (!offs) {
+	    continue;
+	}
+
+	/* if in-between conversion needed (already have relative date/time),
+	 * correct date info, because the local date/time may be changed, so
+	 * refresh it now (see test clock-30.34 "clock add jump over DST hole") */
+
+	if ((info->flags & CLF_RELCONV) ||
+	    (yyRelSeconds && unitIndex < CLC_ADD_HOURS)
+	) {
+	    if (ClockCalcRelTime(info, &opts) != TCL_OK) {
+		goto done;
+	    }
+	}
+
+	/* process increment by offset + unit */
+	switch (unitIndex) {
+	case CLC_ADD_YEARS:
+	    yyRelMonth += offs * 12;
+	    break;
+	case CLC_ADD_MONTHS:
+	    yyRelMonth += offs;
+	    break;
+	case CLC_ADD_WEEK:
+	case CLC_ADD_WEEKS:
+	    yyRelDay += offs * 7;
+	    break;
+	case CLC_ADD_DAYS:
+	    yyRelDay += offs;
+	    break;
+	case CLC_ADD_WEEKDAYS:
+	    /* add number of week days (skipping Saturdays and Sundays)
+	     * to a relative days value. */
+	    offs = ClockWeekdaysOffs(yy.date.dayOfWeek, offs);
+	    yyRelDay += offs;
+	    break;
+	case CLC_ADD_HOURS:
+	    yyRelSeconds += offs * 60 * 60;
+	    break;
+	case CLC_ADD_MINUTES:
+	    yyRelSeconds += offs * 60;
+	    break;
+	case CLC_ADD_SECONDS:
+	    yyRelSeconds += offs;
+	    break;
+	}
+	if (unitIndex < CLC_ADD_HOURS) { /* date units only */
+	    info->flags |= CLF_RELCONV;
+	}
+    }
+
+    /*
+     * Do relative units (if not yet already processed interim),
+     * thereby ignore relative time (it can be processed within commit).
+     */
+
+    if (info->flags & CLF_RELCONV) {
+	if (ClockCalcRelTime(info, &opts) != TCL_OK) {
+	    goto done;
+	}
+    }
+
+    /* Convert date info structure into UTC seconds */
+
+    ret = ClockScanCommit(&yy, &opts);
+
+  done:
+    TclUnsetObjRef(yy.date.tzName);
+    if (ret != TCL_OK) {
+	return ret;
+    }
+    Tcl_SetObjResult(interp, Tcl_NewWideIntObj(yy.date.seconds));
+    return TCL_OK;
 }
 
 /*----------------------------------------------------------------------
@@ -1954,32 +4587,106 @@ ClockParseformatargsObjCmd(
 
 int
 ClockSecondsObjCmd(
-    ClientData clientData,	/* Client data is unused */
-    Tcl_Interp* interp,		/* Tcl interpreter */
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,		/* Tcl interpreter */
     int objc,			/* Parameter count */
-    Tcl_Obj* const* objv)	/* Parameter values */
+    Tcl_Obj *const *objv)	/* Parameter values */
 {
     Tcl_Time now;
+    Tcl_Obj *timeObj;
 
     if (objc != 1) {
-	Tcl_WrongNumArgs(interp, 1, objv, NULL);
+	Tcl_WrongNumArgs(interp, 0, objv, "clock seconds");
 	return TCL_ERROR;
     }
     Tcl_GetTime(&now);
-    Tcl_SetObjResult(interp, Tcl_NewWideIntObj((Tcl_WideInt) now.sec));
+    TclNewUIntObj(timeObj, (Tcl_WideUInt)now.sec);
+
+    Tcl_SetObjResult(interp, timeObj);
     return TCL_OK;
 }
 
 /*
  *----------------------------------------------------------------------
  *
+ * ClockSafeCatchCmd --
+ *
+ *	Same as "::catch" command but avoids overwriting of interp state.
+ *
+ *	See [554117edde] for more info (and proper solution).
+ *
+ *----------------------------------------------------------------------
+ */
+int
+ClockSafeCatchCmd(
+    TCL_UNUSED(void *),
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    typedef struct {
+	int status;		/* return code status */
+	int flags;		/* Each remaining field saves the */
+	int returnLevel;	/* corresponding field of the Interp */
+	int returnCode;		/* struct. These fields taken together are */
+	Tcl_Obj *errorInfo;	/* the "state" of the interp. */
+	Tcl_Obj *errorCode;
+	Tcl_Obj *returnOpts;
+	Tcl_Obj *objResult;
+	Tcl_Obj *errorStack;
+	int resetErrorStack;
+    } InterpState;
+
+    Interp *iPtr = (Interp *)interp;
+    int ret, flags = 0;
+    InterpState *statePtr;
+
+    if (objc == 1) {
+	/* wrong # args : */
+	return Tcl_CatchObjCmd(NULL, interp, objc, objv);
+    }
+
+    statePtr = (InterpState *)Tcl_SaveInterpState(interp, 0);
+    if (!statePtr->errorInfo) {
+	/* todo: avoid traced get of errorInfo here */
+	TclInitObjRef(statePtr->errorInfo,
+		Tcl_ObjGetVar2(interp, iPtr->eiVar, NULL, 0));
+	flags |= ERR_LEGACY_COPY;
+    }
+    if (!statePtr->errorCode) {
+	/* todo: avoid traced get of errorCode here */
+	TclInitObjRef(statePtr->errorCode,
+		Tcl_ObjGetVar2(interp, iPtr->ecVar, NULL, 0));
+	flags |= ERR_LEGACY_COPY;
+    }
+
+    /* original catch */
+    ret = Tcl_CatchObjCmd(NULL, interp, objc, objv);
+
+    if (ret == TCL_ERROR) {
+	Tcl_DiscardInterpState((Tcl_InterpState)statePtr);
+	return TCL_ERROR;
+    }
+    /* overwrite result in state with catch result */
+    TclSetObjRef(statePtr->objResult, Tcl_GetObjResult(interp));
+    /* set result (together with restore state) to interpreter */
+    (void) Tcl_RestoreInterpState(interp, (Tcl_InterpState)statePtr);
+    /* todo: unless ERR_LEGACY_COPY not set in restore (branch [bug-554117edde] not merged yet) */
+    iPtr->flags |= (flags & ERR_LEGACY_COPY);
+    return ret;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
  * TzsetIfNecessary --
  *
  *	Calls the tzset() library function if the contents of the TZ
  *	environment variable has changed.
  *
  * Results:
- *	None.
+ *	An epoch counter to allow efficient checking if the timezone has
+ *	changed.
  *
  * Side effects:
  *	Calls tzset.
@@ -1987,60 +4694,90 @@ ClockSecondsObjCmd(
  *----------------------------------------------------------------------
  */
 
-static void
+#ifdef _WIN32
+#define getenv(x) _wgetenv(L##x)
+#else
+#define WCHAR char
+#define wcslen strlen
+#define wcscmp strcmp
+#define wcscpy strcpy
+#endif
+#define TZ_INIT_MARKER	((WCHAR *) INT2PTR(-1))
+
+typedef struct ClockTzStatic {
+    WCHAR *was;			/* Previous value of TZ. */
+    long long lastRefresh;	/* Used for latency before next refresh. */
+    size_t epoch;		/* Epoch, signals that TZ changed. */
+    size_t envEpoch;		/* Last env epoch, for faster signaling,
+				 * that TZ changed via TCL */
+} ClockTzStatic;
+static ClockTzStatic tz = {	/* Global timezone info; protected by
+				 * clockMutex.*/
+    TZ_INIT_MARKER, 0, 0, 0
+};
+
+static size_t
 TzsetIfNecessary(void)
 {
-    static char* tzWas = INT2PTR(-1);	/* Previous value of TZ, protected by
-				 * clockMutex. */
-    const char* tzIsNow;	/* Current value of TZ */
+    const WCHAR *tzNow;		/* Current value of TZ. */
+    Tcl_Time now;		/* Current time. */
+    size_t epoch;		/* The tz.epoch that the TZ was read at. */
 
+    /*
+     * Prevent performance regression on some platforms by resolving of system time zone:
+     * small latency for check whether environment was changed (once per second)
+     * no latency if environment was changed with tcl-env (compare both epoch values)
+     */
+
+    Tcl_GetTime(&now);
+    if (now.sec == tz.lastRefresh && tz.envEpoch == TclEnvEpoch) {
+	return tz.epoch;
+    }
+
+    tz.envEpoch = TclEnvEpoch;
+    tz.lastRefresh = now.sec;
+
+    /* check in lock */
     Tcl_MutexLock(&clockMutex);
-    tzIsNow = getenv("TZ");
-    if (tzIsNow != NULL && (tzWas == NULL || tzWas == INT2PTR(-1)
-	    || strcmp(tzIsNow, tzWas) != 0)) {
+    tzNow = getenv("TCL_TZ");
+    if (tzNow == NULL) {
+	tzNow = getenv("TZ");
+    }
+    if (tzNow != NULL && (tz.was == NULL || tz.was == TZ_INIT_MARKER
+	    || wcscmp(tzNow, tz.was) != 0)) {
 	tzset();
-	if (tzWas != NULL && tzWas != INT2PTR(-1)) {
-	    ckfree(tzWas);
+	if (tz.was != NULL && tz.was != TZ_INIT_MARKER) {
+	    Tcl_Free(tz.was);
 	}
-	tzWas = ckalloc(strlen(tzIsNow) + 1);
-	strcpy(tzWas, tzIsNow);
-    } else if (tzIsNow == NULL && tzWas != NULL) {
+	tz.was = (WCHAR *)Tcl_Alloc(sizeof(WCHAR) * (wcslen(tzNow) + 1));
+	wcscpy(tz.was, tzNow);
+	epoch = ++tz.epoch;
+    } else if (tzNow == NULL && tz.was != NULL) {
 	tzset();
-	if (tzWas != INT2PTR(-1)) ckfree(tzWas);
-	tzWas = NULL;
+	if (tz.was != TZ_INIT_MARKER) {
+	    Tcl_Free(tz.was);
+	}
+	tz.was = NULL;
+	epoch = ++tz.epoch;
+    } else {
+	epoch = tz.epoch;
     }
     Tcl_MutexUnlock(&clockMutex);
+
+    return epoch;
 }
 
-/*
- *----------------------------------------------------------------------
- *
- * ClockDeleteCmdProc --
- *
- *	Remove a reference to the clock client data, and clean up memory
- *	when it's all gone.
- *
- * Results:
- *	None.
- *
- *----------------------------------------------------------------------
- */
-
 static void
-ClockDeleteCmdProc(
-    ClientData clientData)	/* Opaque pointer to the client data */
+ClockFinalize(
+    TCL_UNUSED(void *))
 {
-    ClockClientData *data = (ClockClientData*) clientData;
-    int i;
+    ClockFrmScnFinalize();
 
-    --(data->refCount);
-    if (data->refCount == 0) {
-	for (i = 0; i < LIT__END; ++i) {
-	    Tcl_DecrRefCount(data->literals[i]);
-	}
-	ckfree((char*) (data->literals));
-	ckfree((char*) data);
+    if (tz.was && tz.was != TZ_INIT_MARKER) {
+	Tcl_Free(tz.was);
     }
+
+    Tcl_MutexFinalize(&clockMutex);
 }
 
 /*
diff --git a/generic/tclClockFmt.c b/generic/tclClockFmt.c
new file mode 100644
author	Neal Norwitz <nnorwitz@gmail.com>	2005-10-21 04:23:36 (GMT)
committer	Neal Norwitz <nnorwitz@gmail.com>	2005-10-21 04:23:36 (GMT)
commit	58a7985465c7c6051c8487b0906c03555c2f8a7d (patch)
tree	5f7bbbc551feea07aa6efa8440eaa707188cf04f /Python/mystrtoul.c
parent	6d777bb122e066f7847709673556d23263fb2380 (diff)
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